1 /* Copyright 2008-2013 Broadcom Corporation
2  * Copyright (c) 2014 QLogic Corporation
3  * All rights reserved
4  *
5  * Unless you and QLogic execute a separate written software license
6  * agreement governing use of this software, this software is licensed to you
7  * under the terms of the GNU General Public License version 2, available
8  * at http://www.gnu.org/licenses/gpl-2.0.html (the "GPL").
9  *
10  * Notwithstanding the above, under no circumstances may you combine this
11  * software in any way with any other Qlogic software provided under a
12  * license other than the GPL, without Qlogic's express prior written
13  * consent.
14  *
15  * Written by Yaniv Rosner
16  *
17  */
18 
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20 
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/pci.h>
24 #include <linux/netdevice.h>
25 #include <linux/delay.h>
26 #include <linux/ethtool.h>
27 #include <linux/mutex.h>
28 
29 #include "bnx2x.h"
30 #include "bnx2x_cmn.h"
31 
32 typedef int (*read_sfp_module_eeprom_func_p)(struct bnx2x_phy *phy,
33 					     struct link_params *params,
34 					     u8 dev_addr, u16 addr, u8 byte_cnt,
35 					     u8 *o_buf, u8);
36 /********************************************************/
37 #define MDIO_ACCESS_TIMEOUT		1000
38 #define WC_LANE_MAX			4
39 #define I2C_SWITCH_WIDTH		2
40 #define I2C_BSC0			0
41 #define I2C_BSC1			1
42 #define I2C_WA_RETRY_CNT		3
43 #define I2C_WA_PWR_ITER			(I2C_WA_RETRY_CNT - 1)
44 #define MCPR_IMC_COMMAND_READ_OP	1
45 #define MCPR_IMC_COMMAND_WRITE_OP	2
46 
47 /* LED Blink rate that will achieve ~15.9Hz */
48 #define LED_BLINK_RATE_VAL_E3		354
49 #define LED_BLINK_RATE_VAL_E1X_E2	480
50 /***********************************************************/
51 /*			Shortcut definitions		   */
52 /***********************************************************/
53 
54 #define NIG_LATCH_BC_ENABLE_MI_INT 0
55 
56 #define NIG_STATUS_EMAC0_MI_INT \
57 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_EMAC0_MISC_MI_INT
58 #define NIG_STATUS_XGXS0_LINK10G \
59 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK10G
60 #define NIG_STATUS_XGXS0_LINK_STATUS \
61 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS
62 #define NIG_STATUS_XGXS0_LINK_STATUS_SIZE \
63 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS_SIZE
64 #define NIG_STATUS_SERDES0_LINK_STATUS \
65 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_SERDES0_LINK_STATUS
66 #define NIG_MASK_MI_INT \
67 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_EMAC0_MISC_MI_INT
68 #define NIG_MASK_XGXS0_LINK10G \
69 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK10G
70 #define NIG_MASK_XGXS0_LINK_STATUS \
71 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK_STATUS
72 #define NIG_MASK_SERDES0_LINK_STATUS \
73 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_SERDES0_LINK_STATUS
74 
75 #define MDIO_AN_CL73_OR_37_COMPLETE \
76 		(MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | \
77 		 MDIO_GP_STATUS_TOP_AN_STATUS1_CL37_AUTONEG_COMPLETE)
78 
79 #define XGXS_RESET_BITS \
80 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_RSTB_HW |   \
81 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_IDDQ |      \
82 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN |    \
83 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN_SD | \
84 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_TXD_FIFO_RSTB)
85 
86 #define SERDES_RESET_BITS \
87 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_RSTB_HW | \
88 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_IDDQ |    \
89 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN |  \
90 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN_SD)
91 
92 #define AUTONEG_CL37		SHARED_HW_CFG_AN_ENABLE_CL37
93 #define AUTONEG_CL73		SHARED_HW_CFG_AN_ENABLE_CL73
94 #define AUTONEG_BAM		SHARED_HW_CFG_AN_ENABLE_BAM
95 #define AUTONEG_PARALLEL \
96 				SHARED_HW_CFG_AN_ENABLE_PARALLEL_DETECTION
97 #define AUTONEG_SGMII_FIBER_AUTODET \
98 				SHARED_HW_CFG_AN_EN_SGMII_FIBER_AUTO_DETECT
99 #define AUTONEG_REMOTE_PHY	SHARED_HW_CFG_AN_ENABLE_REMOTE_PHY
100 
101 #define GP_STATUS_PAUSE_RSOLUTION_TXSIDE \
102 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_TXSIDE
103 #define GP_STATUS_PAUSE_RSOLUTION_RXSIDE \
104 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_RXSIDE
105 #define GP_STATUS_SPEED_MASK \
106 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_MASK
107 #define GP_STATUS_10M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10M
108 #define GP_STATUS_100M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_100M
109 #define GP_STATUS_1G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G
110 #define GP_STATUS_2_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_2_5G
111 #define GP_STATUS_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_5G
112 #define GP_STATUS_6G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_6G
113 #define GP_STATUS_10G_HIG \
114 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_HIG
115 #define GP_STATUS_10G_CX4 \
116 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_CX4
117 #define GP_STATUS_1G_KX MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G_KX
118 #define GP_STATUS_10G_KX4 \
119 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KX4
120 #define	GP_STATUS_10G_KR MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KR
121 #define	GP_STATUS_10G_XFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_XFI
122 #define	GP_STATUS_20G_DXGXS MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_DXGXS
123 #define	GP_STATUS_10G_SFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_SFI
124 #define	GP_STATUS_20G_KR2 MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_KR2
125 #define LINK_10THD		LINK_STATUS_SPEED_AND_DUPLEX_10THD
126 #define LINK_10TFD		LINK_STATUS_SPEED_AND_DUPLEX_10TFD
127 #define LINK_100TXHD		LINK_STATUS_SPEED_AND_DUPLEX_100TXHD
128 #define LINK_100T4		LINK_STATUS_SPEED_AND_DUPLEX_100T4
129 #define LINK_100TXFD		LINK_STATUS_SPEED_AND_DUPLEX_100TXFD
130 #define LINK_1000THD		LINK_STATUS_SPEED_AND_DUPLEX_1000THD
131 #define LINK_1000TFD		LINK_STATUS_SPEED_AND_DUPLEX_1000TFD
132 #define LINK_1000XFD		LINK_STATUS_SPEED_AND_DUPLEX_1000XFD
133 #define LINK_2500THD		LINK_STATUS_SPEED_AND_DUPLEX_2500THD
134 #define LINK_2500TFD		LINK_STATUS_SPEED_AND_DUPLEX_2500TFD
135 #define LINK_2500XFD		LINK_STATUS_SPEED_AND_DUPLEX_2500XFD
136 #define LINK_10GTFD		LINK_STATUS_SPEED_AND_DUPLEX_10GTFD
137 #define LINK_10GXFD		LINK_STATUS_SPEED_AND_DUPLEX_10GXFD
138 #define LINK_20GTFD		LINK_STATUS_SPEED_AND_DUPLEX_20GTFD
139 #define LINK_20GXFD		LINK_STATUS_SPEED_AND_DUPLEX_20GXFD
140 
141 #define LINK_UPDATE_MASK \
142 			(LINK_STATUS_SPEED_AND_DUPLEX_MASK | \
143 			 LINK_STATUS_LINK_UP | \
144 			 LINK_STATUS_PHYSICAL_LINK_FLAG | \
145 			 LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \
146 			 LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \
147 			 LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \
148 			 LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \
149 			 LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \
150 			 LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE)
151 
152 #define SFP_EEPROM_CON_TYPE_ADDR		0x2
153 	#define SFP_EEPROM_CON_TYPE_VAL_UNKNOWN	0x0
154 	#define SFP_EEPROM_CON_TYPE_VAL_LC	0x7
155 	#define SFP_EEPROM_CON_TYPE_VAL_COPPER	0x21
156 	#define SFP_EEPROM_CON_TYPE_VAL_RJ45	0x22
157 
158 
159 #define SFP_EEPROM_10G_COMP_CODE_ADDR		0x3
160 	#define SFP_EEPROM_10G_COMP_CODE_SR_MASK	(1<<4)
161 	#define SFP_EEPROM_10G_COMP_CODE_LR_MASK	(1<<5)
162 	#define SFP_EEPROM_10G_COMP_CODE_LRM_MASK	(1<<6)
163 
164 #define SFP_EEPROM_1G_COMP_CODE_ADDR		0x6
165 	#define SFP_EEPROM_1G_COMP_CODE_SX	(1<<0)
166 	#define SFP_EEPROM_1G_COMP_CODE_LX	(1<<1)
167 	#define SFP_EEPROM_1G_COMP_CODE_CX	(1<<2)
168 	#define SFP_EEPROM_1G_COMP_CODE_BASE_T	(1<<3)
169 
170 #define SFP_EEPROM_FC_TX_TECH_ADDR		0x8
171 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE 0x4
172 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE  0x8
173 
174 #define SFP_EEPROM_OPTIONS_ADDR			0x40
175 	#define SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK 0x1
176 #define SFP_EEPROM_OPTIONS_SIZE			2
177 
178 #define EDC_MODE_LINEAR				0x0022
179 #define EDC_MODE_LIMITING				0x0044
180 #define EDC_MODE_PASSIVE_DAC			0x0055
181 #define EDC_MODE_ACTIVE_DAC			0x0066
182 
183 /* ETS defines*/
184 #define DCBX_INVALID_COS					(0xFF)
185 
186 #define ETS_BW_LIMIT_CREDIT_UPPER_BOUND		(0x5000)
187 #define ETS_BW_LIMIT_CREDIT_WEIGHT		(0x5000)
188 #define ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS		(1360)
189 #define ETS_E3B0_NIG_MIN_W_VAL_20GBPS			(2720)
190 #define ETS_E3B0_PBF_MIN_W_VAL				(10000)
191 
192 #define MAX_PACKET_SIZE					(9700)
193 #define MAX_KR_LINK_RETRY				4
194 #define DEFAULT_TX_DRV_BRDCT		2
195 #define DEFAULT_TX_DRV_IFIR		0
196 #define DEFAULT_TX_DRV_POST2		3
197 #define DEFAULT_TX_DRV_IPRE_DRIVER	6
198 
199 /**********************************************************/
200 /*                     INTERFACE                          */
201 /**********************************************************/
202 
203 #define CL22_WR_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
204 	bnx2x_cl45_write(_bp, _phy, \
205 		(_phy)->def_md_devad, \
206 		(_bank + (_addr & 0xf)), \
207 		_val)
208 
209 #define CL22_RD_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
210 	bnx2x_cl45_read(_bp, _phy, \
211 		(_phy)->def_md_devad, \
212 		(_bank + (_addr & 0xf)), \
213 		_val)
214 
215 static int bnx2x_check_half_open_conn(struct link_params *params,
216 				      struct link_vars *vars, u8 notify);
217 static int bnx2x_sfp_module_detection(struct bnx2x_phy *phy,
218 				      struct link_params *params);
219 
bnx2x_bits_en(struct bnx2x * bp,u32 reg,u32 bits)220 static u32 bnx2x_bits_en(struct bnx2x *bp, u32 reg, u32 bits)
221 {
222 	u32 val = REG_RD(bp, reg);
223 
224 	val |= bits;
225 	REG_WR(bp, reg, val);
226 	return val;
227 }
228 
bnx2x_bits_dis(struct bnx2x * bp,u32 reg,u32 bits)229 static u32 bnx2x_bits_dis(struct bnx2x *bp, u32 reg, u32 bits)
230 {
231 	u32 val = REG_RD(bp, reg);
232 
233 	val &= ~bits;
234 	REG_WR(bp, reg, val);
235 	return val;
236 }
237 
238 /*
239  * bnx2x_check_lfa - This function checks if link reinitialization is required,
240  *                   or link flap can be avoided.
241  *
242  * @params:	link parameters
243  * Returns 0 if Link Flap Avoidance conditions are met otherwise, the failed
244  *         condition code.
245  */
bnx2x_check_lfa(struct link_params * params)246 static int bnx2x_check_lfa(struct link_params *params)
247 {
248 	u32 link_status, cfg_idx, lfa_mask, cfg_size;
249 	u32 cur_speed_cap_mask, cur_req_fc_auto_adv, additional_config;
250 	u32 saved_val, req_val, eee_status;
251 	struct bnx2x *bp = params->bp;
252 
253 	additional_config =
254 		REG_RD(bp, params->lfa_base +
255 			   offsetof(struct shmem_lfa, additional_config));
256 
257 	/* NOTE: must be first condition checked -
258 	* to verify DCC bit is cleared in any case!
259 	*/
260 	if (additional_config & NO_LFA_DUE_TO_DCC_MASK) {
261 		DP(NETIF_MSG_LINK, "No LFA due to DCC flap after clp exit\n");
262 		REG_WR(bp, params->lfa_base +
263 			   offsetof(struct shmem_lfa, additional_config),
264 		       additional_config & ~NO_LFA_DUE_TO_DCC_MASK);
265 		return LFA_DCC_LFA_DISABLED;
266 	}
267 
268 	/* Verify that link is up */
269 	link_status = REG_RD(bp, params->shmem_base +
270 			     offsetof(struct shmem_region,
271 				      port_mb[params->port].link_status));
272 	if (!(link_status & LINK_STATUS_LINK_UP))
273 		return LFA_LINK_DOWN;
274 
275 	/* if loaded after BOOT from SAN, don't flap the link in any case and
276 	 * rely on link set by preboot driver
277 	 */
278 	if (params->feature_config_flags & FEATURE_CONFIG_BOOT_FROM_SAN)
279 		return 0;
280 
281 	/* Verify that loopback mode is not set */
282 	if (params->loopback_mode)
283 		return LFA_LOOPBACK_ENABLED;
284 
285 	/* Verify that MFW supports LFA */
286 	if (!params->lfa_base)
287 		return LFA_MFW_IS_TOO_OLD;
288 
289 	if (params->num_phys == 3) {
290 		cfg_size = 2;
291 		lfa_mask = 0xffffffff;
292 	} else {
293 		cfg_size = 1;
294 		lfa_mask = 0xffff;
295 	}
296 
297 	/* Compare Duplex */
298 	saved_val = REG_RD(bp, params->lfa_base +
299 			   offsetof(struct shmem_lfa, req_duplex));
300 	req_val = params->req_duplex[0] | (params->req_duplex[1] << 16);
301 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
302 		DP(NETIF_MSG_LINK, "Duplex mismatch %x vs. %x\n",
303 			       (saved_val & lfa_mask), (req_val & lfa_mask));
304 		return LFA_DUPLEX_MISMATCH;
305 	}
306 	/* Compare Flow Control */
307 	saved_val = REG_RD(bp, params->lfa_base +
308 			   offsetof(struct shmem_lfa, req_flow_ctrl));
309 	req_val = params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16);
310 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
311 		DP(NETIF_MSG_LINK, "Flow control mismatch %x vs. %x\n",
312 			       (saved_val & lfa_mask), (req_val & lfa_mask));
313 		return LFA_FLOW_CTRL_MISMATCH;
314 	}
315 	/* Compare Link Speed */
316 	saved_val = REG_RD(bp, params->lfa_base +
317 			   offsetof(struct shmem_lfa, req_line_speed));
318 	req_val = params->req_line_speed[0] | (params->req_line_speed[1] << 16);
319 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
320 		DP(NETIF_MSG_LINK, "Link speed mismatch %x vs. %x\n",
321 			       (saved_val & lfa_mask), (req_val & lfa_mask));
322 		return LFA_LINK_SPEED_MISMATCH;
323 	}
324 
325 	for (cfg_idx = 0; cfg_idx < cfg_size; cfg_idx++) {
326 		cur_speed_cap_mask = REG_RD(bp, params->lfa_base +
327 					    offsetof(struct shmem_lfa,
328 						     speed_cap_mask[cfg_idx]));
329 
330 		if (cur_speed_cap_mask != params->speed_cap_mask[cfg_idx]) {
331 			DP(NETIF_MSG_LINK, "Speed Cap mismatch %x vs. %x\n",
332 				       cur_speed_cap_mask,
333 				       params->speed_cap_mask[cfg_idx]);
334 			return LFA_SPEED_CAP_MISMATCH;
335 		}
336 	}
337 
338 	cur_req_fc_auto_adv =
339 		REG_RD(bp, params->lfa_base +
340 		       offsetof(struct shmem_lfa, additional_config)) &
341 		REQ_FC_AUTO_ADV_MASK;
342 
343 	if ((u16)cur_req_fc_auto_adv != params->req_fc_auto_adv) {
344 		DP(NETIF_MSG_LINK, "Flow Ctrl AN mismatch %x vs. %x\n",
345 			       cur_req_fc_auto_adv, params->req_fc_auto_adv);
346 		return LFA_FLOW_CTRL_MISMATCH;
347 	}
348 
349 	eee_status = REG_RD(bp, params->shmem2_base +
350 			    offsetof(struct shmem2_region,
351 				     eee_status[params->port]));
352 
353 	if (((eee_status & SHMEM_EEE_LPI_REQUESTED_BIT) ^
354 	     (params->eee_mode & EEE_MODE_ENABLE_LPI)) ||
355 	    ((eee_status & SHMEM_EEE_REQUESTED_BIT) ^
356 	     (params->eee_mode & EEE_MODE_ADV_LPI))) {
357 		DP(NETIF_MSG_LINK, "EEE mismatch %x vs. %x\n", params->eee_mode,
358 			       eee_status);
359 		return LFA_EEE_MISMATCH;
360 	}
361 
362 	/* LFA conditions are met */
363 	return 0;
364 }
365 /******************************************************************/
366 /*			EPIO/GPIO section			  */
367 /******************************************************************/
bnx2x_get_epio(struct bnx2x * bp,u32 epio_pin,u32 * en)368 static void bnx2x_get_epio(struct bnx2x *bp, u32 epio_pin, u32 *en)
369 {
370 	u32 epio_mask, gp_oenable;
371 	*en = 0;
372 	/* Sanity check */
373 	if (epio_pin > 31) {
374 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to get\n", epio_pin);
375 		return;
376 	}
377 
378 	epio_mask = 1 << epio_pin;
379 	/* Set this EPIO to output */
380 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
381 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable & ~epio_mask);
382 
383 	*en = (REG_RD(bp, MCP_REG_MCPR_GP_INPUTS) & epio_mask) >> epio_pin;
384 }
bnx2x_set_epio(struct bnx2x * bp,u32 epio_pin,u32 en)385 static void bnx2x_set_epio(struct bnx2x *bp, u32 epio_pin, u32 en)
386 {
387 	u32 epio_mask, gp_output, gp_oenable;
388 
389 	/* Sanity check */
390 	if (epio_pin > 31) {
391 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to set\n", epio_pin);
392 		return;
393 	}
394 	DP(NETIF_MSG_LINK, "Setting EPIO pin %d to %d\n", epio_pin, en);
395 	epio_mask = 1 << epio_pin;
396 	/* Set this EPIO to output */
397 	gp_output = REG_RD(bp, MCP_REG_MCPR_GP_OUTPUTS);
398 	if (en)
399 		gp_output |= epio_mask;
400 	else
401 		gp_output &= ~epio_mask;
402 
403 	REG_WR(bp, MCP_REG_MCPR_GP_OUTPUTS, gp_output);
404 
405 	/* Set the value for this EPIO */
406 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
407 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable | epio_mask);
408 }
409 
bnx2x_set_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 val)410 static void bnx2x_set_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 val)
411 {
412 	if (pin_cfg == PIN_CFG_NA)
413 		return;
414 	if (pin_cfg >= PIN_CFG_EPIO0) {
415 		bnx2x_set_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
416 	} else {
417 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
418 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
419 		bnx2x_set_gpio(bp, gpio_num, (u8)val, gpio_port);
420 	}
421 }
422 
bnx2x_get_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 * val)423 static u32 bnx2x_get_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 *val)
424 {
425 	if (pin_cfg == PIN_CFG_NA)
426 		return -EINVAL;
427 	if (pin_cfg >= PIN_CFG_EPIO0) {
428 		bnx2x_get_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
429 	} else {
430 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
431 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
432 		*val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
433 	}
434 	return 0;
435 
436 }
437 /******************************************************************/
438 /*				ETS section			  */
439 /******************************************************************/
bnx2x_ets_e2e3a0_disabled(struct link_params * params)440 static void bnx2x_ets_e2e3a0_disabled(struct link_params *params)
441 {
442 	/* ETS disabled configuration*/
443 	struct bnx2x *bp = params->bp;
444 
445 	DP(NETIF_MSG_LINK, "ETS E2E3 disabled configuration\n");
446 
447 	/* mapping between entry  priority to client number (0,1,2 -debug and
448 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
449 	 * 3bits client num.
450 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
451 	 * cos1-100     cos0-011     dbg1-010     dbg0-001     MCP-000
452 	 */
453 
454 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, 0x4688);
455 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
456 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
457 	 * COS0 entry, 4 - COS1 entry.
458 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
459 	 * bit4   bit3	  bit2   bit1	  bit0
460 	 * MCP and debug are strict
461 	 */
462 
463 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
464 	/* defines which entries (clients) are subjected to WFQ arbitration */
465 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
466 	/* For strict priority entries defines the number of consecutive
467 	 * slots for the highest priority.
468 	 */
469 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
470 	/* mapping between the CREDIT_WEIGHT registers and actual client
471 	 * numbers
472 	 */
473 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0);
474 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0);
475 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0);
476 
477 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, 0);
478 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, 0);
479 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, 0);
480 	/* ETS mode disable */
481 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
482 	/* If ETS mode is enabled (there is no strict priority) defines a WFQ
483 	 * weight for COS0/COS1.
484 	 */
485 	REG_WR(bp, PBF_REG_COS0_WEIGHT, 0x2710);
486 	REG_WR(bp, PBF_REG_COS1_WEIGHT, 0x2710);
487 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter */
488 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND, 0x989680);
489 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND, 0x989680);
490 	/* Defines the number of consecutive slots for the strict priority */
491 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
492 }
493 /******************************************************************************
494 * Description:
495 *	Getting min_w_val will be set according to line speed .
496 *.
497 ******************************************************************************/
bnx2x_ets_get_min_w_val_nig(const struct link_vars * vars)498 static u32 bnx2x_ets_get_min_w_val_nig(const struct link_vars *vars)
499 {
500 	u32 min_w_val = 0;
501 	/* Calculate min_w_val.*/
502 	if (vars->link_up) {
503 		if (vars->line_speed == SPEED_20000)
504 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
505 		else
506 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS;
507 	} else
508 		min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
509 	/* If the link isn't up (static configuration for example ) The
510 	 * link will be according to 20GBPS.
511 	 */
512 	return min_w_val;
513 }
514 /******************************************************************************
515 * Description:
516 *	Getting credit upper bound form min_w_val.
517 *.
518 ******************************************************************************/
bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)519 static u32 bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)
520 {
521 	const u32 credit_upper_bound = (u32)MAXVAL((150 * min_w_val),
522 						MAX_PACKET_SIZE);
523 	return credit_upper_bound;
524 }
525 /******************************************************************************
526 * Description:
527 *	Set credit upper bound for NIG.
528 *.
529 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_nig(const struct link_params * params,const u32 min_w_val)530 static void bnx2x_ets_e3b0_set_credit_upper_bound_nig(
531 	const struct link_params *params,
532 	const u32 min_w_val)
533 {
534 	struct bnx2x *bp = params->bp;
535 	const u8 port = params->port;
536 	const u32 credit_upper_bound =
537 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
538 
539 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_0 :
540 		NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, credit_upper_bound);
541 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_1 :
542 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, credit_upper_bound);
543 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_2 :
544 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_2, credit_upper_bound);
545 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_3 :
546 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_3, credit_upper_bound);
547 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_4 :
548 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_4, credit_upper_bound);
549 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_5 :
550 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_5, credit_upper_bound);
551 
552 	if (!port) {
553 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_6,
554 			credit_upper_bound);
555 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_7,
556 			credit_upper_bound);
557 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_8,
558 			credit_upper_bound);
559 	}
560 }
561 /******************************************************************************
562 * Description:
563 *	Will return the NIG ETS registers to init values.Except
564 *	credit_upper_bound.
565 *	That isn't used in this configuration (No WFQ is enabled) and will be
566 *	configured according to spec
567 *.
568 ******************************************************************************/
bnx2x_ets_e3b0_nig_disabled(const struct link_params * params,const struct link_vars * vars)569 static void bnx2x_ets_e3b0_nig_disabled(const struct link_params *params,
570 					const struct link_vars *vars)
571 {
572 	struct bnx2x *bp = params->bp;
573 	const u8 port = params->port;
574 	const u32 min_w_val = bnx2x_ets_get_min_w_val_nig(vars);
575 	/* Mapping between entry  priority to client number (0,1,2 -debug and
576 	 * management clients, 3 - COS0 client, 4 - COS1, ... 8 -
577 	 * COS5)(HIGHEST) 4bits client num.TODO_ETS - Should be done by
578 	 * reset value or init tool
579 	 */
580 	if (port) {
581 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB, 0x543210);
582 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_MSB, 0x0);
583 	} else {
584 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB, 0x76543210);
585 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB, 0x8);
586 	}
587 	/* For strict priority entries defines the number of consecutive
588 	 * slots for the highest priority.
589 	 */
590 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
591 		   NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
592 	/* Mapping between the CREDIT_WEIGHT registers and actual client
593 	 * numbers
594 	 */
595 	if (port) {
596 		/*Port 1 has 6 COS*/
597 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_LSB, 0x210543);
598 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x0);
599 	} else {
600 		/*Port 0 has 9 COS*/
601 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_LSB,
602 		       0x43210876);
603 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x5);
604 	}
605 
606 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
607 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
608 	 * COS0 entry, 4 - COS1 entry.
609 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
610 	 * bit4   bit3	  bit2   bit1	  bit0
611 	 * MCP and debug are strict
612 	 */
613 	if (port)
614 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT, 0x3f);
615 	else
616 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1ff);
617 	/* defines which entries (clients) are subjected to WFQ arbitration */
618 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
619 		   NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
620 
621 	/* Please notice the register address are note continuous and a
622 	 * for here is note appropriate.In 2 port mode port0 only COS0-5
623 	 * can be used. DEBUG1,DEBUG1,MGMT are never used for WFQ* In 4
624 	 * port mode port1 only COS0-2 can be used. DEBUG1,DEBUG1,MGMT
625 	 * are never used for WFQ
626 	 */
627 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
628 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0x0);
629 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
630 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0x0);
631 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
632 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2, 0x0);
633 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_3 :
634 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3, 0x0);
635 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_4 :
636 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4, 0x0);
637 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_5 :
638 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5, 0x0);
639 	if (!port) {
640 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_6, 0x0);
641 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_7, 0x0);
642 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_8, 0x0);
643 	}
644 
645 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val);
646 }
647 /******************************************************************************
648 * Description:
649 *	Set credit upper bound for PBF.
650 *.
651 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_pbf(const struct link_params * params,const u32 min_w_val)652 static void bnx2x_ets_e3b0_set_credit_upper_bound_pbf(
653 	const struct link_params *params,
654 	const u32 min_w_val)
655 {
656 	struct bnx2x *bp = params->bp;
657 	const u32 credit_upper_bound =
658 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
659 	const u8 port = params->port;
660 	u32 base_upper_bound = 0;
661 	u8 max_cos = 0;
662 	u8 i = 0;
663 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.In 4
664 	 * port mode port1 has COS0-2 that can be used for WFQ.
665 	 */
666 	if (!port) {
667 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P0;
668 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
669 	} else {
670 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P1;
671 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
672 	}
673 
674 	for (i = 0; i < max_cos; i++)
675 		REG_WR(bp, base_upper_bound + (i << 2), credit_upper_bound);
676 }
677 
678 /******************************************************************************
679 * Description:
680 *	Will return the PBF ETS registers to init values.Except
681 *	credit_upper_bound.
682 *	That isn't used in this configuration (No WFQ is enabled) and will be
683 *	configured according to spec
684 *.
685 ******************************************************************************/
bnx2x_ets_e3b0_pbf_disabled(const struct link_params * params)686 static void bnx2x_ets_e3b0_pbf_disabled(const struct link_params *params)
687 {
688 	struct bnx2x *bp = params->bp;
689 	const u8 port = params->port;
690 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
691 	u8 i = 0;
692 	u32 base_weight = 0;
693 	u8 max_cos = 0;
694 
695 	/* Mapping between entry  priority to client number 0 - COS0
696 	 * client, 2 - COS1, ... 5 - COS5)(HIGHEST) 4bits client num.
697 	 * TODO_ETS - Should be done by reset value or init tool
698 	 */
699 	if (port)
700 		/*  0x688 (|011|0 10|00 1|000) */
701 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , 0x688);
702 	else
703 		/*  (10 1|100 |011|0 10|00 1|000) */
704 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , 0x2C688);
705 
706 	/* TODO_ETS - Should be done by reset value or init tool */
707 	if (port)
708 		/* 0x688 (|011|0 10|00 1|000)*/
709 		REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P1, 0x688);
710 	else
711 	/* 0x2C688 (10 1|100 |011|0 10|00 1|000) */
712 	REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P0, 0x2C688);
713 
714 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P1 :
715 		   PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P0 , 0x100);
716 
717 
718 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
719 		   PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , 0);
720 
721 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
722 		   PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0 , 0);
723 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.
724 	 * In 4 port mode port1 has COS0-2 that can be used for WFQ.
725 	 */
726 	if (!port) {
727 		base_weight = PBF_REG_COS0_WEIGHT_P0;
728 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
729 	} else {
730 		base_weight = PBF_REG_COS0_WEIGHT_P1;
731 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
732 	}
733 
734 	for (i = 0; i < max_cos; i++)
735 		REG_WR(bp, base_weight + (0x4 * i), 0);
736 
737 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
738 }
739 /******************************************************************************
740 * Description:
741 *	E3B0 disable will return basically the values to init values.
742 *.
743 ******************************************************************************/
bnx2x_ets_e3b0_disabled(const struct link_params * params,const struct link_vars * vars)744 static int bnx2x_ets_e3b0_disabled(const struct link_params *params,
745 				   const struct link_vars *vars)
746 {
747 	struct bnx2x *bp = params->bp;
748 
749 	if (!CHIP_IS_E3B0(bp)) {
750 		DP(NETIF_MSG_LINK,
751 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
752 		return -EINVAL;
753 	}
754 
755 	bnx2x_ets_e3b0_nig_disabled(params, vars);
756 
757 	bnx2x_ets_e3b0_pbf_disabled(params);
758 
759 	return 0;
760 }
761 
762 /******************************************************************************
763 * Description:
764 *	Disable will return basically the values to init values.
765 *
766 ******************************************************************************/
bnx2x_ets_disabled(struct link_params * params,struct link_vars * vars)767 int bnx2x_ets_disabled(struct link_params *params,
768 		      struct link_vars *vars)
769 {
770 	struct bnx2x *bp = params->bp;
771 	int bnx2x_status = 0;
772 
773 	if ((CHIP_IS_E2(bp)) || (CHIP_IS_E3A0(bp)))
774 		bnx2x_ets_e2e3a0_disabled(params);
775 	else if (CHIP_IS_E3B0(bp))
776 		bnx2x_status = bnx2x_ets_e3b0_disabled(params, vars);
777 	else {
778 		DP(NETIF_MSG_LINK, "bnx2x_ets_disabled - chip not supported\n");
779 		return -EINVAL;
780 	}
781 
782 	return bnx2x_status;
783 }
784 
785 /******************************************************************************
786 * Description
787 *	Set the COS mappimg to SP and BW until this point all the COS are not
788 *	set as SP or BW.
789 ******************************************************************************/
bnx2x_ets_e3b0_cli_map(const struct link_params * params,const struct bnx2x_ets_params * ets_params,const u8 cos_sp_bitmap,const u8 cos_bw_bitmap)790 static int bnx2x_ets_e3b0_cli_map(const struct link_params *params,
791 				  const struct bnx2x_ets_params *ets_params,
792 				  const u8 cos_sp_bitmap,
793 				  const u8 cos_bw_bitmap)
794 {
795 	struct bnx2x *bp = params->bp;
796 	const u8 port = params->port;
797 	const u8 nig_cli_sp_bitmap = 0x7 | (cos_sp_bitmap << 3);
798 	const u8 pbf_cli_sp_bitmap = cos_sp_bitmap;
799 	const u8 nig_cli_subject2wfq_bitmap = cos_bw_bitmap << 3;
800 	const u8 pbf_cli_subject2wfq_bitmap = cos_bw_bitmap;
801 
802 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT :
803 	       NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, nig_cli_sp_bitmap);
804 
805 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
806 	       PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , pbf_cli_sp_bitmap);
807 
808 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
809 	       NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ,
810 	       nig_cli_subject2wfq_bitmap);
811 
812 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
813 	       PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0,
814 	       pbf_cli_subject2wfq_bitmap);
815 
816 	return 0;
817 }
818 
819 /******************************************************************************
820 * Description:
821 *	This function is needed because NIG ARB_CREDIT_WEIGHT_X are
822 *	not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
823 ******************************************************************************/
bnx2x_ets_e3b0_set_cos_bw(struct bnx2x * bp,const u8 cos_entry,const u32 min_w_val_nig,const u32 min_w_val_pbf,const u16 total_bw,const u8 bw,const u8 port)824 static int bnx2x_ets_e3b0_set_cos_bw(struct bnx2x *bp,
825 				     const u8 cos_entry,
826 				     const u32 min_w_val_nig,
827 				     const u32 min_w_val_pbf,
828 				     const u16 total_bw,
829 				     const u8 bw,
830 				     const u8 port)
831 {
832 	u32 nig_reg_adress_crd_weight = 0;
833 	u32 pbf_reg_adress_crd_weight = 0;
834 	/* Calculate and set BW for this COS - use 1 instead of 0 for BW */
835 	const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;
836 	const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;
837 
838 	switch (cos_entry) {
839 	case 0:
840 		nig_reg_adress_crd_weight =
841 			(port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
842 			NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0;
843 		pbf_reg_adress_crd_weight = (port) ?
844 		    PBF_REG_COS0_WEIGHT_P1 : PBF_REG_COS0_WEIGHT_P0;
845 		break;
846 	case 1:
847 		nig_reg_adress_crd_weight = (port) ?
848 			NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
849 			NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1;
850 		pbf_reg_adress_crd_weight = (port) ?
851 			PBF_REG_COS1_WEIGHT_P1 : PBF_REG_COS1_WEIGHT_P0;
852 		break;
853 	case 2:
854 		nig_reg_adress_crd_weight = (port) ?
855 			NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
856 			NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2;
857 
858 		pbf_reg_adress_crd_weight = (port) ?
859 			PBF_REG_COS2_WEIGHT_P1 : PBF_REG_COS2_WEIGHT_P0;
860 		break;
861 	case 3:
862 		if (port)
863 			return -EINVAL;
864 		nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3;
865 		pbf_reg_adress_crd_weight = PBF_REG_COS3_WEIGHT_P0;
866 		break;
867 	case 4:
868 		if (port)
869 			return -EINVAL;
870 		nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4;
871 		pbf_reg_adress_crd_weight = PBF_REG_COS4_WEIGHT_P0;
872 		break;
873 	case 5:
874 		if (port)
875 			return -EINVAL;
876 		nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5;
877 		pbf_reg_adress_crd_weight = PBF_REG_COS5_WEIGHT_P0;
878 		break;
879 	}
880 
881 	REG_WR(bp, nig_reg_adress_crd_weight, cos_bw_nig);
882 
883 	REG_WR(bp, pbf_reg_adress_crd_weight, cos_bw_pbf);
884 
885 	return 0;
886 }
887 /******************************************************************************
888 * Description:
889 *	Calculate the total BW.A value of 0 isn't legal.
890 *
891 ******************************************************************************/
bnx2x_ets_e3b0_get_total_bw(const struct link_params * params,struct bnx2x_ets_params * ets_params,u16 * total_bw)892 static int bnx2x_ets_e3b0_get_total_bw(
893 	const struct link_params *params,
894 	struct bnx2x_ets_params *ets_params,
895 	u16 *total_bw)
896 {
897 	struct bnx2x *bp = params->bp;
898 	u8 cos_idx = 0;
899 	u8 is_bw_cos_exist = 0;
900 
901 	*total_bw = 0 ;
902 	/* Calculate total BW requested */
903 	for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {
904 		if (ets_params->cos[cos_idx].state == bnx2x_cos_state_bw) {
905 			is_bw_cos_exist = 1;
906 			if (!ets_params->cos[cos_idx].params.bw_params.bw) {
907 				DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config BW"
908 						   "was set to 0\n");
909 				/* This is to prevent a state when ramrods
910 				 * can't be sent
911 				 */
912 				ets_params->cos[cos_idx].params.bw_params.bw
913 					 = 1;
914 			}
915 			*total_bw +=
916 				ets_params->cos[cos_idx].params.bw_params.bw;
917 		}
918 	}
919 
920 	/* Check total BW is valid */
921 	if ((is_bw_cos_exist == 1) && (*total_bw != 100)) {
922 		if (*total_bw == 0) {
923 			DP(NETIF_MSG_LINK,
924 			   "bnx2x_ets_E3B0_config total BW shouldn't be 0\n");
925 			return -EINVAL;
926 		}
927 		DP(NETIF_MSG_LINK,
928 		   "bnx2x_ets_E3B0_config total BW should be 100\n");
929 		/* We can handle a case whre the BW isn't 100 this can happen
930 		 * if the TC are joined.
931 		 */
932 	}
933 	return 0;
934 }
935 
936 /******************************************************************************
937 * Description:
938 *	Invalidate all the sp_pri_to_cos.
939 *
940 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 * sp_pri_to_cos)941 static void bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 *sp_pri_to_cos)
942 {
943 	u8 pri = 0;
944 	for (pri = 0; pri < DCBX_MAX_NUM_COS; pri++)
945 		sp_pri_to_cos[pri] = DCBX_INVALID_COS;
946 }
947 /******************************************************************************
948 * Description:
949 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
950 *	according to sp_pri_to_cos.
951 *
952 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params * params,u8 * sp_pri_to_cos,const u8 pri,const u8 cos_entry)953 static int bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params *params,
954 					    u8 *sp_pri_to_cos, const u8 pri,
955 					    const u8 cos_entry)
956 {
957 	struct bnx2x *bp = params->bp;
958 	const u8 port = params->port;
959 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
960 		DCBX_E3B0_MAX_NUM_COS_PORT0;
961 
962 	if (pri >= max_num_of_cos) {
963 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
964 		   "parameter Illegal strict priority\n");
965 		return -EINVAL;
966 	}
967 
968 	if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) {
969 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
970 				   "parameter There can't be two COS's with "
971 				   "the same strict pri\n");
972 		return -EINVAL;
973 	}
974 
975 	sp_pri_to_cos[pri] = cos_entry;
976 	return 0;
977 
978 }
979 
980 /******************************************************************************
981 * Description:
982 *	Returns the correct value according to COS and priority in
983 *	the sp_pri_cli register.
984 *
985 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos,const u8 cos_offset,const u8 pri_set,const u8 pri_offset,const u8 entry_size)986 static u64 bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos, const u8 cos_offset,
987 					 const u8 pri_set,
988 					 const u8 pri_offset,
989 					 const u8 entry_size)
990 {
991 	u64 pri_cli_nig = 0;
992 	pri_cli_nig = ((u64)(cos + cos_offset)) << (entry_size *
993 						    (pri_set + pri_offset));
994 
995 	return pri_cli_nig;
996 }
997 /******************************************************************************
998 * Description:
999 *	Returns the correct value according to COS and priority in the
1000 *	sp_pri_cli register for NIG.
1001 *
1002 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos,const u8 pri_set)1003 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos, const u8 pri_set)
1004 {
1005 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1006 	const u8 nig_cos_offset = 3;
1007 	const u8 nig_pri_offset = 3;
1008 
1009 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, nig_cos_offset, pri_set,
1010 		nig_pri_offset, 4);
1011 
1012 }
1013 /******************************************************************************
1014 * Description:
1015 *	Returns the correct value according to COS and priority in the
1016 *	sp_pri_cli register for PBF.
1017 *
1018 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos,const u8 pri_set)1019 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos, const u8 pri_set)
1020 {
1021 	const u8 pbf_cos_offset = 0;
1022 	const u8 pbf_pri_offset = 0;
1023 
1024 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, pbf_cos_offset, pri_set,
1025 		pbf_pri_offset, 3);
1026 
1027 }
1028 
1029 /******************************************************************************
1030 * Description:
1031 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
1032 *	according to sp_pri_to_cos.(which COS has higher priority)
1033 *
1034 ******************************************************************************/
bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params * params,u8 * sp_pri_to_cos)1035 static int bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params *params,
1036 					     u8 *sp_pri_to_cos)
1037 {
1038 	struct bnx2x *bp = params->bp;
1039 	u8 i = 0;
1040 	const u8 port = params->port;
1041 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1042 	u64 pri_cli_nig = 0x210;
1043 	u32 pri_cli_pbf = 0x0;
1044 	u8 pri_set = 0;
1045 	u8 pri_bitmask = 0;
1046 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1047 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1048 
1049 	u8 cos_bit_to_set = (1 << max_num_of_cos) - 1;
1050 
1051 	/* Set all the strict priority first */
1052 	for (i = 0; i < max_num_of_cos; i++) {
1053 		if (sp_pri_to_cos[i] != DCBX_INVALID_COS) {
1054 			if (sp_pri_to_cos[i] >= DCBX_MAX_NUM_COS) {
1055 				DP(NETIF_MSG_LINK,
1056 					   "bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1057 					   "invalid cos entry\n");
1058 				return -EINVAL;
1059 			}
1060 
1061 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1062 			    sp_pri_to_cos[i], pri_set);
1063 
1064 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1065 			    sp_pri_to_cos[i], pri_set);
1066 			pri_bitmask = 1 << sp_pri_to_cos[i];
1067 			/* COS is used remove it from bitmap.*/
1068 			if (!(pri_bitmask & cos_bit_to_set)) {
1069 				DP(NETIF_MSG_LINK,
1070 					"bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1071 					"invalid There can't be two COS's with"
1072 					" the same strict pri\n");
1073 				return -EINVAL;
1074 			}
1075 			cos_bit_to_set &= ~pri_bitmask;
1076 			pri_set++;
1077 		}
1078 	}
1079 
1080 	/* Set all the Non strict priority i= COS*/
1081 	for (i = 0; i < max_num_of_cos; i++) {
1082 		pri_bitmask = 1 << i;
1083 		/* Check if COS was already used for SP */
1084 		if (pri_bitmask & cos_bit_to_set) {
1085 			/* COS wasn't used for SP */
1086 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1087 			    i, pri_set);
1088 
1089 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1090 			    i, pri_set);
1091 			/* COS is used remove it from bitmap.*/
1092 			cos_bit_to_set &= ~pri_bitmask;
1093 			pri_set++;
1094 		}
1095 	}
1096 
1097 	if (pri_set != max_num_of_cos) {
1098 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_set_pri_cli_reg not all "
1099 				   "entries were set\n");
1100 		return -EINVAL;
1101 	}
1102 
1103 	if (port) {
1104 		/* Only 6 usable clients*/
1105 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB,
1106 		       (u32)pri_cli_nig);
1107 
1108 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , pri_cli_pbf);
1109 	} else {
1110 		/* Only 9 usable clients*/
1111 		const u32 pri_cli_nig_lsb = (u32) (pri_cli_nig);
1112 		const u32 pri_cli_nig_msb = (u32) ((pri_cli_nig >> 32) & 0xF);
1113 
1114 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB,
1115 		       pri_cli_nig_lsb);
1116 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB,
1117 		       pri_cli_nig_msb);
1118 
1119 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , pri_cli_pbf);
1120 	}
1121 	return 0;
1122 }
1123 
1124 /******************************************************************************
1125 * Description:
1126 *	Configure the COS to ETS according to BW and SP settings.
1127 ******************************************************************************/
bnx2x_ets_e3b0_config(const struct link_params * params,const struct link_vars * vars,struct bnx2x_ets_params * ets_params)1128 int bnx2x_ets_e3b0_config(const struct link_params *params,
1129 			 const struct link_vars *vars,
1130 			 struct bnx2x_ets_params *ets_params)
1131 {
1132 	struct bnx2x *bp = params->bp;
1133 	int bnx2x_status = 0;
1134 	const u8 port = params->port;
1135 	u16 total_bw = 0;
1136 	const u32 min_w_val_nig = bnx2x_ets_get_min_w_val_nig(vars);
1137 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
1138 	u8 cos_bw_bitmap = 0;
1139 	u8 cos_sp_bitmap = 0;
1140 	u8 sp_pri_to_cos[DCBX_MAX_NUM_COS] = {0};
1141 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1142 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1143 	u8 cos_entry = 0;
1144 
1145 	if (!CHIP_IS_E3B0(bp)) {
1146 		DP(NETIF_MSG_LINK,
1147 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
1148 		return -EINVAL;
1149 	}
1150 
1151 	if ((ets_params->num_of_cos > max_num_of_cos)) {
1152 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config the number of COS "
1153 				   "isn't supported\n");
1154 		return -EINVAL;
1155 	}
1156 
1157 	/* Prepare sp strict priority parameters*/
1158 	bnx2x_ets_e3b0_sp_pri_to_cos_init(sp_pri_to_cos);
1159 
1160 	/* Prepare BW parameters*/
1161 	bnx2x_status = bnx2x_ets_e3b0_get_total_bw(params, ets_params,
1162 						   &total_bw);
1163 	if (bnx2x_status) {
1164 		DP(NETIF_MSG_LINK,
1165 		   "bnx2x_ets_E3B0_config get_total_bw failed\n");
1166 		return -EINVAL;
1167 	}
1168 
1169 	/* Upper bound is set according to current link speed (min_w_val
1170 	 * should be the same for upper bound and COS credit val).
1171 	 */
1172 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val_nig);
1173 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
1174 
1175 
1176 	for (cos_entry = 0; cos_entry < ets_params->num_of_cos; cos_entry++) {
1177 		if (bnx2x_cos_state_bw == ets_params->cos[cos_entry].state) {
1178 			cos_bw_bitmap |= (1 << cos_entry);
1179 			/* The function also sets the BW in HW(not the mappin
1180 			 * yet)
1181 			 */
1182 			bnx2x_status = bnx2x_ets_e3b0_set_cos_bw(
1183 				bp, cos_entry, min_w_val_nig, min_w_val_pbf,
1184 				total_bw,
1185 				ets_params->cos[cos_entry].params.bw_params.bw,
1186 				 port);
1187 		} else if (bnx2x_cos_state_strict ==
1188 			ets_params->cos[cos_entry].state){
1189 			cos_sp_bitmap |= (1 << cos_entry);
1190 
1191 			bnx2x_status = bnx2x_ets_e3b0_sp_pri_to_cos_set(
1192 				params,
1193 				sp_pri_to_cos,
1194 				ets_params->cos[cos_entry].params.sp_params.pri,
1195 				cos_entry);
1196 
1197 		} else {
1198 			DP(NETIF_MSG_LINK,
1199 			   "bnx2x_ets_e3b0_config cos state not valid\n");
1200 			return -EINVAL;
1201 		}
1202 		if (bnx2x_status) {
1203 			DP(NETIF_MSG_LINK,
1204 			   "bnx2x_ets_e3b0_config set cos bw failed\n");
1205 			return bnx2x_status;
1206 		}
1207 	}
1208 
1209 	/* Set SP register (which COS has higher priority) */
1210 	bnx2x_status = bnx2x_ets_e3b0_sp_set_pri_cli_reg(params,
1211 							 sp_pri_to_cos);
1212 
1213 	if (bnx2x_status) {
1214 		DP(NETIF_MSG_LINK,
1215 		   "bnx2x_ets_E3B0_config set_pri_cli_reg failed\n");
1216 		return bnx2x_status;
1217 	}
1218 
1219 	/* Set client mapping of BW and strict */
1220 	bnx2x_status = bnx2x_ets_e3b0_cli_map(params, ets_params,
1221 					      cos_sp_bitmap,
1222 					      cos_bw_bitmap);
1223 
1224 	if (bnx2x_status) {
1225 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config SP failed\n");
1226 		return bnx2x_status;
1227 	}
1228 	return 0;
1229 }
bnx2x_ets_bw_limit_common(const struct link_params * params)1230 static void bnx2x_ets_bw_limit_common(const struct link_params *params)
1231 {
1232 	/* ETS disabled configuration */
1233 	struct bnx2x *bp = params->bp;
1234 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1235 	/* Defines which entries (clients) are subjected to WFQ arbitration
1236 	 * COS0 0x8
1237 	 * COS1 0x10
1238 	 */
1239 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0x18);
1240 	/* Mapping between the ARB_CREDIT_WEIGHT registers and actual
1241 	 * client numbers (WEIGHT_0 does not actually have to represent
1242 	 * client 0)
1243 	 *    PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1244 	 *  cos1-001     cos0-000     dbg1-100     dbg0-011     MCP-010
1245 	 */
1246 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0x111A);
1247 
1248 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0,
1249 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1250 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1,
1251 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1252 
1253 	/* ETS mode enabled*/
1254 	REG_WR(bp, PBF_REG_ETS_ENABLED, 1);
1255 
1256 	/* Defines the number of consecutive slots for the strict priority */
1257 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
1258 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1259 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 - COS0
1260 	 * entry, 4 - COS1 entry.
1261 	 * COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1262 	 * bit4   bit3	  bit2     bit1	   bit0
1263 	 * MCP and debug are strict
1264 	 */
1265 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
1266 
1267 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter.*/
1268 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND,
1269 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1270 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND,
1271 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1272 }
1273 
bnx2x_ets_bw_limit(const struct link_params * params,const u32 cos0_bw,const u32 cos1_bw)1274 void bnx2x_ets_bw_limit(const struct link_params *params, const u32 cos0_bw,
1275 			const u32 cos1_bw)
1276 {
1277 	/* ETS disabled configuration*/
1278 	struct bnx2x *bp = params->bp;
1279 	const u32 total_bw = cos0_bw + cos1_bw;
1280 	u32 cos0_credit_weight = 0;
1281 	u32 cos1_credit_weight = 0;
1282 
1283 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1284 
1285 	if ((!total_bw) ||
1286 	    (!cos0_bw) ||
1287 	    (!cos1_bw)) {
1288 		DP(NETIF_MSG_LINK, "Total BW can't be zero\n");
1289 		return;
1290 	}
1291 
1292 	cos0_credit_weight = (cos0_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1293 		total_bw;
1294 	cos1_credit_weight = (cos1_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1295 		total_bw;
1296 
1297 	bnx2x_ets_bw_limit_common(params);
1298 
1299 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, cos0_credit_weight);
1300 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, cos1_credit_weight);
1301 
1302 	REG_WR(bp, PBF_REG_COS0_WEIGHT, cos0_credit_weight);
1303 	REG_WR(bp, PBF_REG_COS1_WEIGHT, cos1_credit_weight);
1304 }
1305 
bnx2x_ets_strict(const struct link_params * params,const u8 strict_cos)1306 int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos)
1307 {
1308 	/* ETS disabled configuration*/
1309 	struct bnx2x *bp = params->bp;
1310 	u32 val	= 0;
1311 
1312 	DP(NETIF_MSG_LINK, "ETS enabled strict configuration\n");
1313 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1314 	 * as strict.  Bits 0,1,2 - debug and management entries,
1315 	 * 3 - COS0 entry, 4 - COS1 entry.
1316 	 *  COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1317 	 *  bit4   bit3	  bit2      bit1     bit0
1318 	 * MCP and debug are strict
1319 	 */
1320 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1F);
1321 	/* For strict priority entries defines the number of consecutive slots
1322 	 * for the highest priority.
1323 	 */
1324 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
1325 	/* ETS mode disable */
1326 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
1327 	/* Defines the number of consecutive slots for the strict priority */
1328 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0x100);
1329 
1330 	/* Defines the number of consecutive slots for the strict priority */
1331 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, strict_cos);
1332 
1333 	/* Mapping between entry  priority to client number (0,1,2 -debug and
1334 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
1335 	 * 3bits client num.
1336 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1337 	 * dbg0-010     dbg1-001     cos1-100     cos0-011     MCP-000
1338 	 * dbg0-010     dbg1-001     cos0-011     cos1-100     MCP-000
1339 	 */
1340 	val = (!strict_cos) ? 0x2318 : 0x22E0;
1341 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, val);
1342 
1343 	return 0;
1344 }
1345 
1346 /******************************************************************/
1347 /*			PFC section				  */
1348 /******************************************************************/
bnx2x_update_pfc_xmac(struct link_params * params,struct link_vars * vars,u8 is_lb)1349 static void bnx2x_update_pfc_xmac(struct link_params *params,
1350 				  struct link_vars *vars,
1351 				  u8 is_lb)
1352 {
1353 	struct bnx2x *bp = params->bp;
1354 	u32 xmac_base;
1355 	u32 pause_val, pfc0_val, pfc1_val;
1356 
1357 	/* XMAC base adrr */
1358 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1359 
1360 	/* Initialize pause and pfc registers */
1361 	pause_val = 0x18000;
1362 	pfc0_val = 0xFFFF8000;
1363 	pfc1_val = 0x2;
1364 
1365 	/* No PFC support */
1366 	if (!(params->feature_config_flags &
1367 	      FEATURE_CONFIG_PFC_ENABLED)) {
1368 
1369 		/* RX flow control - Process pause frame in receive direction
1370 		 */
1371 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1372 			pause_val |= XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN;
1373 
1374 		/* TX flow control - Send pause packet when buffer is full */
1375 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1376 			pause_val |= XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN;
1377 	} else {/* PFC support */
1378 		pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN |
1379 			XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN |
1380 			XMAC_PFC_CTRL_HI_REG_RX_PFC_EN |
1381 			XMAC_PFC_CTRL_HI_REG_TX_PFC_EN |
1382 			XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1383 		/* Write pause and PFC registers */
1384 		REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1385 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1386 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1387 		pfc1_val &= ~XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1388 
1389 	}
1390 
1391 	/* Write pause and PFC registers */
1392 	REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1393 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1394 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1395 
1396 
1397 	/* Set MAC address for source TX Pause/PFC frames */
1398 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_LO,
1399 	       ((params->mac_addr[2] << 24) |
1400 		(params->mac_addr[3] << 16) |
1401 		(params->mac_addr[4] << 8) |
1402 		(params->mac_addr[5])));
1403 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_HI,
1404 	       ((params->mac_addr[0] << 8) |
1405 		(params->mac_addr[1])));
1406 
1407 	udelay(30);
1408 }
1409 
1410 /******************************************************************/
1411 /*			MAC/PBF section				  */
1412 /******************************************************************/
bnx2x_set_mdio_clk(struct bnx2x * bp,u32 chip_id,u32 emac_base)1413 static void bnx2x_set_mdio_clk(struct bnx2x *bp, u32 chip_id,
1414 			       u32 emac_base)
1415 {
1416 	u32 new_mode, cur_mode;
1417 	u32 clc_cnt;
1418 	/* Set clause 45 mode, slow down the MDIO clock to 2.5MHz
1419 	 * (a value of 49==0x31) and make sure that the AUTO poll is off
1420 	 */
1421 	cur_mode = REG_RD(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE);
1422 
1423 	if (USES_WARPCORE(bp))
1424 		clc_cnt = 74L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1425 	else
1426 		clc_cnt = 49L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1427 
1428 	if (((cur_mode & EMAC_MDIO_MODE_CLOCK_CNT) == clc_cnt) &&
1429 	    (cur_mode & (EMAC_MDIO_MODE_CLAUSE_45)))
1430 		return;
1431 
1432 	new_mode = cur_mode &
1433 		~(EMAC_MDIO_MODE_AUTO_POLL | EMAC_MDIO_MODE_CLOCK_CNT);
1434 	new_mode |= clc_cnt;
1435 	new_mode |= (EMAC_MDIO_MODE_CLAUSE_45);
1436 
1437 	DP(NETIF_MSG_LINK, "Changing emac_mode from 0x%x to 0x%x\n",
1438 	   cur_mode, new_mode);
1439 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE, new_mode);
1440 	udelay(40);
1441 }
1442 
bnx2x_set_mdio_emac_per_phy(struct bnx2x * bp,struct link_params * params)1443 static void bnx2x_set_mdio_emac_per_phy(struct bnx2x *bp,
1444 					struct link_params *params)
1445 {
1446 	u8 phy_index;
1447 	/* Set mdio clock per phy */
1448 	for (phy_index = INT_PHY; phy_index < params->num_phys;
1449 	      phy_index++)
1450 		bnx2x_set_mdio_clk(bp, params->chip_id,
1451 				   params->phy[phy_index].mdio_ctrl);
1452 }
1453 
bnx2x_is_4_port_mode(struct bnx2x * bp)1454 static u8 bnx2x_is_4_port_mode(struct bnx2x *bp)
1455 {
1456 	u32 port4mode_ovwr_val;
1457 	/* Check 4-port override enabled */
1458 	port4mode_ovwr_val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
1459 	if (port4mode_ovwr_val & (1<<0)) {
1460 		/* Return 4-port mode override value */
1461 		return ((port4mode_ovwr_val & (1<<1)) == (1<<1));
1462 	}
1463 	/* Return 4-port mode from input pin */
1464 	return (u8)REG_RD(bp, MISC_REG_PORT4MODE_EN);
1465 }
1466 
bnx2x_emac_init(struct link_params * params,struct link_vars * vars)1467 static void bnx2x_emac_init(struct link_params *params,
1468 			    struct link_vars *vars)
1469 {
1470 	/* reset and unreset the emac core */
1471 	struct bnx2x *bp = params->bp;
1472 	u8 port = params->port;
1473 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1474 	u32 val;
1475 	u16 timeout;
1476 
1477 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1478 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1479 	udelay(5);
1480 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1481 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1482 
1483 	/* init emac - use read-modify-write */
1484 	/* self clear reset */
1485 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1486 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_RESET));
1487 
1488 	timeout = 200;
1489 	do {
1490 		val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1491 		DP(NETIF_MSG_LINK, "EMAC reset reg is %u\n", val);
1492 		if (!timeout) {
1493 			DP(NETIF_MSG_LINK, "EMAC timeout!\n");
1494 			return;
1495 		}
1496 		timeout--;
1497 	} while (val & EMAC_MODE_RESET);
1498 
1499 	bnx2x_set_mdio_emac_per_phy(bp, params);
1500 	/* Set mac address */
1501 	val = ((params->mac_addr[0] << 8) |
1502 		params->mac_addr[1]);
1503 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH, val);
1504 
1505 	val = ((params->mac_addr[2] << 24) |
1506 	       (params->mac_addr[3] << 16) |
1507 	       (params->mac_addr[4] << 8) |
1508 		params->mac_addr[5]);
1509 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + 4, val);
1510 }
1511 
bnx2x_set_xumac_nig(struct link_params * params,u16 tx_pause_en,u8 enable)1512 static void bnx2x_set_xumac_nig(struct link_params *params,
1513 				u16 tx_pause_en,
1514 				u8 enable)
1515 {
1516 	struct bnx2x *bp = params->bp;
1517 
1518 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_IN_EN : NIG_REG_P0_MAC_IN_EN,
1519 	       enable);
1520 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_OUT_EN : NIG_REG_P0_MAC_OUT_EN,
1521 	       enable);
1522 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_PAUSE_OUT_EN :
1523 	       NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
1524 }
1525 
bnx2x_set_umac_rxtx(struct link_params * params,u8 en)1526 static void bnx2x_set_umac_rxtx(struct link_params *params, u8 en)
1527 {
1528 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1529 	u32 val;
1530 	struct bnx2x *bp = params->bp;
1531 	if (!(REG_RD(bp, MISC_REG_RESET_REG_2) &
1532 		   (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
1533 		return;
1534 	val = REG_RD(bp, umac_base + UMAC_REG_COMMAND_CONFIG);
1535 	if (en)
1536 		val |= (UMAC_COMMAND_CONFIG_REG_TX_ENA |
1537 			UMAC_COMMAND_CONFIG_REG_RX_ENA);
1538 	else
1539 		val &= ~(UMAC_COMMAND_CONFIG_REG_TX_ENA |
1540 			 UMAC_COMMAND_CONFIG_REG_RX_ENA);
1541 	/* Disable RX and TX */
1542 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1543 }
1544 
bnx2x_umac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1545 static void bnx2x_umac_enable(struct link_params *params,
1546 			    struct link_vars *vars, u8 lb)
1547 {
1548 	u32 val;
1549 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1550 	struct bnx2x *bp = params->bp;
1551 	/* Reset UMAC */
1552 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1553 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1554 	usleep_range(1000, 2000);
1555 
1556 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1557 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1558 
1559 	DP(NETIF_MSG_LINK, "enabling UMAC\n");
1560 
1561 	/* This register opens the gate for the UMAC despite its name */
1562 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
1563 
1564 	val = UMAC_COMMAND_CONFIG_REG_PROMIS_EN |
1565 		UMAC_COMMAND_CONFIG_REG_PAD_EN |
1566 		UMAC_COMMAND_CONFIG_REG_SW_RESET |
1567 		UMAC_COMMAND_CONFIG_REG_NO_LGTH_CHECK;
1568 	switch (vars->line_speed) {
1569 	case SPEED_10:
1570 		val |= (0<<2);
1571 		break;
1572 	case SPEED_100:
1573 		val |= (1<<2);
1574 		break;
1575 	case SPEED_1000:
1576 		val |= (2<<2);
1577 		break;
1578 	case SPEED_2500:
1579 		val |= (3<<2);
1580 		break;
1581 	default:
1582 		DP(NETIF_MSG_LINK, "Invalid speed for UMAC %d\n",
1583 			       vars->line_speed);
1584 		break;
1585 	}
1586 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1587 		val |= UMAC_COMMAND_CONFIG_REG_IGNORE_TX_PAUSE;
1588 
1589 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1590 		val |= UMAC_COMMAND_CONFIG_REG_PAUSE_IGNORE;
1591 
1592 	if (vars->duplex == DUPLEX_HALF)
1593 		val |= UMAC_COMMAND_CONFIG_REG_HD_ENA;
1594 
1595 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1596 	udelay(50);
1597 
1598 	/* Configure UMAC for EEE */
1599 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1600 		DP(NETIF_MSG_LINK, "configured UMAC for EEE\n");
1601 		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL,
1602 		       UMAC_UMAC_EEE_CTRL_REG_EEE_EN);
1603 		REG_WR(bp, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11);
1604 	} else {
1605 		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0);
1606 	}
1607 
1608 	/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
1609 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0,
1610 	       ((params->mac_addr[2] << 24) |
1611 		(params->mac_addr[3] << 16) |
1612 		(params->mac_addr[4] << 8) |
1613 		(params->mac_addr[5])));
1614 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR1,
1615 	       ((params->mac_addr[0] << 8) |
1616 		(params->mac_addr[1])));
1617 
1618 	/* Enable RX and TX */
1619 	val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN;
1620 	val |= UMAC_COMMAND_CONFIG_REG_TX_ENA |
1621 		UMAC_COMMAND_CONFIG_REG_RX_ENA;
1622 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1623 	udelay(50);
1624 
1625 	/* Remove SW Reset */
1626 	val &= ~UMAC_COMMAND_CONFIG_REG_SW_RESET;
1627 
1628 	/* Check loopback mode */
1629 	if (lb)
1630 		val |= UMAC_COMMAND_CONFIG_REG_LOOP_ENA;
1631 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1632 
1633 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
1634 	 * length used by the MAC receive logic to check frames.
1635 	 */
1636 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
1637 	bnx2x_set_xumac_nig(params,
1638 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1639 	vars->mac_type = MAC_TYPE_UMAC;
1640 
1641 }
1642 
1643 /* Define the XMAC mode */
bnx2x_xmac_init(struct link_params * params,u32 max_speed)1644 static void bnx2x_xmac_init(struct link_params *params, u32 max_speed)
1645 {
1646 	struct bnx2x *bp = params->bp;
1647 	u32 is_port4mode = bnx2x_is_4_port_mode(bp);
1648 
1649 	/* In 4-port mode, need to set the mode only once, so if XMAC is
1650 	 * already out of reset, it means the mode has already been set,
1651 	 * and it must not* reset the XMAC again, since it controls both
1652 	 * ports of the path
1653 	 */
1654 
1655 	if (((CHIP_NUM(bp) == CHIP_NUM_57840_4_10) ||
1656 	     (CHIP_NUM(bp) == CHIP_NUM_57840_2_20) ||
1657 	     (CHIP_NUM(bp) == CHIP_NUM_57840_OBSOLETE)) &&
1658 	    is_port4mode &&
1659 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
1660 	     MISC_REGISTERS_RESET_REG_2_XMAC)) {
1661 		DP(NETIF_MSG_LINK,
1662 		   "XMAC already out of reset in 4-port mode\n");
1663 		return;
1664 	}
1665 
1666 	/* Hard reset */
1667 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1668 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1669 	usleep_range(1000, 2000);
1670 
1671 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1672 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1673 	if (is_port4mode) {
1674 		DP(NETIF_MSG_LINK, "Init XMAC to 2 ports x 10G per path\n");
1675 
1676 		/* Set the number of ports on the system side to up to 2 */
1677 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 1);
1678 
1679 		/* Set the number of ports on the Warp Core to 10G */
1680 		REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1681 	} else {
1682 		/* Set the number of ports on the system side to 1 */
1683 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 0);
1684 		if (max_speed == SPEED_10000) {
1685 			DP(NETIF_MSG_LINK,
1686 			   "Init XMAC to 10G x 1 port per path\n");
1687 			/* Set the number of ports on the Warp Core to 10G */
1688 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1689 		} else {
1690 			DP(NETIF_MSG_LINK,
1691 			   "Init XMAC to 20G x 2 ports per path\n");
1692 			/* Set the number of ports on the Warp Core to 20G */
1693 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 1);
1694 		}
1695 	}
1696 	/* Soft reset */
1697 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1698 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1699 	usleep_range(1000, 2000);
1700 
1701 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1702 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1703 
1704 }
1705 
bnx2x_set_xmac_rxtx(struct link_params * params,u8 en)1706 static void bnx2x_set_xmac_rxtx(struct link_params *params, u8 en)
1707 {
1708 	u8 port = params->port;
1709 	struct bnx2x *bp = params->bp;
1710 	u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1711 	u32 val;
1712 
1713 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
1714 	    MISC_REGISTERS_RESET_REG_2_XMAC) {
1715 		/* Send an indication to change the state in the NIG back to XON
1716 		 * Clearing this bit enables the next set of this bit to get
1717 		 * rising edge
1718 		 */
1719 		pfc_ctrl = REG_RD(bp, xmac_base + XMAC_REG_PFC_CTRL_HI);
1720 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1721 		       (pfc_ctrl & ~(1<<1)));
1722 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1723 		       (pfc_ctrl | (1<<1)));
1724 		DP(NETIF_MSG_LINK, "Disable XMAC on port %x\n", port);
1725 		val = REG_RD(bp, xmac_base + XMAC_REG_CTRL);
1726 		if (en)
1727 			val |= (XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1728 		else
1729 			val &= ~(XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1730 		REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
1731 	}
1732 }
1733 
bnx2x_xmac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1734 static int bnx2x_xmac_enable(struct link_params *params,
1735 			     struct link_vars *vars, u8 lb)
1736 {
1737 	u32 val, xmac_base;
1738 	struct bnx2x *bp = params->bp;
1739 	DP(NETIF_MSG_LINK, "enabling XMAC\n");
1740 
1741 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1742 
1743 	bnx2x_xmac_init(params, vars->line_speed);
1744 
1745 	/* This register determines on which events the MAC will assert
1746 	 * error on the i/f to the NIG along w/ EOP.
1747 	 */
1748 
1749 	/* This register tells the NIG whether to send traffic to UMAC
1750 	 * or XMAC
1751 	 */
1752 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
1753 
1754 	/* When XMAC is in XLGMII mode, disable sending idles for fault
1755 	 * detection.
1756 	 */
1757 	if (!(params->phy[INT_PHY].flags & FLAGS_TX_ERROR_CHECK)) {
1758 		REG_WR(bp, xmac_base + XMAC_REG_RX_LSS_CTRL,
1759 		       (XMAC_RX_LSS_CTRL_REG_LOCAL_FAULT_DISABLE |
1760 			XMAC_RX_LSS_CTRL_REG_REMOTE_FAULT_DISABLE));
1761 		REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
1762 		REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
1763 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
1764 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
1765 	}
1766 	/* Set Max packet size */
1767 	REG_WR(bp, xmac_base + XMAC_REG_RX_MAX_SIZE, 0x2710);
1768 
1769 	/* CRC append for Tx packets */
1770 	REG_WR(bp, xmac_base + XMAC_REG_TX_CTRL, 0xC800);
1771 
1772 	/* update PFC */
1773 	bnx2x_update_pfc_xmac(params, vars, 0);
1774 
1775 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1776 		DP(NETIF_MSG_LINK, "Setting XMAC for EEE\n");
1777 		REG_WR(bp, xmac_base + XMAC_REG_EEE_TIMERS_HI, 0x1380008);
1778 		REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x1);
1779 	} else {
1780 		REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x0);
1781 	}
1782 
1783 	/* Enable TX and RX */
1784 	val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
1785 
1786 	/* Set MAC in XLGMII mode for dual-mode */
1787 	if ((vars->line_speed == SPEED_20000) &&
1788 	    (params->phy[INT_PHY].supported &
1789 	     SUPPORTED_20000baseKR2_Full))
1790 		val |= XMAC_CTRL_REG_XLGMII_ALIGN_ENB;
1791 
1792 	/* Check loopback mode */
1793 	if (lb)
1794 		val |= XMAC_CTRL_REG_LINE_LOCAL_LPBK;
1795 	REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
1796 	bnx2x_set_xumac_nig(params,
1797 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1798 
1799 	vars->mac_type = MAC_TYPE_XMAC;
1800 
1801 	return 0;
1802 }
1803 
bnx2x_emac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1804 static int bnx2x_emac_enable(struct link_params *params,
1805 			     struct link_vars *vars, u8 lb)
1806 {
1807 	struct bnx2x *bp = params->bp;
1808 	u8 port = params->port;
1809 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1810 	u32 val;
1811 
1812 	DP(NETIF_MSG_LINK, "enabling EMAC\n");
1813 
1814 	/* Disable BMAC */
1815 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1816 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
1817 
1818 	/* enable emac and not bmac */
1819 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
1820 
1821 	/* ASIC */
1822 	if (vars->phy_flags & PHY_XGXS_FLAG) {
1823 		u32 ser_lane = ((params->lane_config &
1824 				 PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
1825 				PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
1826 
1827 		DP(NETIF_MSG_LINK, "XGXS\n");
1828 		/* select the master lanes (out of 0-3) */
1829 		REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
1830 		/* select XGXS */
1831 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
1832 
1833 	} else { /* SerDes */
1834 		DP(NETIF_MSG_LINK, "SerDes\n");
1835 		/* select SerDes */
1836 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
1837 	}
1838 
1839 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1840 		      EMAC_RX_MODE_RESET);
1841 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1842 		      EMAC_TX_MODE_RESET);
1843 
1844 	/* pause enable/disable */
1845 	bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1846 		       EMAC_RX_MODE_FLOW_EN);
1847 
1848 	bnx2x_bits_dis(bp,  emac_base + EMAC_REG_EMAC_TX_MODE,
1849 		       (EMAC_TX_MODE_EXT_PAUSE_EN |
1850 			EMAC_TX_MODE_FLOW_EN));
1851 	if (!(params->feature_config_flags &
1852 	      FEATURE_CONFIG_PFC_ENABLED)) {
1853 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1854 			bnx2x_bits_en(bp, emac_base +
1855 				      EMAC_REG_EMAC_RX_MODE,
1856 				      EMAC_RX_MODE_FLOW_EN);
1857 
1858 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1859 			bnx2x_bits_en(bp, emac_base +
1860 				      EMAC_REG_EMAC_TX_MODE,
1861 				      (EMAC_TX_MODE_EXT_PAUSE_EN |
1862 				       EMAC_TX_MODE_FLOW_EN));
1863 	} else
1864 		bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1865 			      EMAC_TX_MODE_FLOW_EN);
1866 
1867 	/* KEEP_VLAN_TAG, promiscuous */
1868 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_RX_MODE);
1869 	val |= EMAC_RX_MODE_KEEP_VLAN_TAG | EMAC_RX_MODE_PROMISCUOUS;
1870 
1871 	/* Setting this bit causes MAC control frames (except for pause
1872 	 * frames) to be passed on for processing. This setting has no
1873 	 * affect on the operation of the pause frames. This bit effects
1874 	 * all packets regardless of RX Parser packet sorting logic.
1875 	 * Turn the PFC off to make sure we are in Xon state before
1876 	 * enabling it.
1877 	 */
1878 	EMAC_WR(bp, EMAC_REG_RX_PFC_MODE, 0);
1879 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
1880 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
1881 		/* Enable PFC again */
1882 		EMAC_WR(bp, EMAC_REG_RX_PFC_MODE,
1883 			EMAC_REG_RX_PFC_MODE_RX_EN |
1884 			EMAC_REG_RX_PFC_MODE_TX_EN |
1885 			EMAC_REG_RX_PFC_MODE_PRIORITIES);
1886 
1887 		EMAC_WR(bp, EMAC_REG_RX_PFC_PARAM,
1888 			((0x0101 <<
1889 			  EMAC_REG_RX_PFC_PARAM_OPCODE_BITSHIFT) |
1890 			 (0x00ff <<
1891 			  EMAC_REG_RX_PFC_PARAM_PRIORITY_EN_BITSHIFT)));
1892 		val |= EMAC_RX_MODE_KEEP_MAC_CONTROL;
1893 	}
1894 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MODE, val);
1895 
1896 	/* Set Loopback */
1897 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1898 	if (lb)
1899 		val |= 0x810;
1900 	else
1901 		val &= ~0x810;
1902 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, val);
1903 
1904 	/* Enable emac */
1905 	REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 1);
1906 
1907 	/* Enable emac for jumbo packets */
1908 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MTU_SIZE,
1909 		(EMAC_RX_MTU_SIZE_JUMBO_ENA |
1910 		 (ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD)));
1911 
1912 	/* Strip CRC */
1913 	REG_WR(bp, NIG_REG_NIG_INGRESS_EMAC0_NO_CRC + port*4, 0x1);
1914 
1915 	/* Disable the NIG in/out to the bmac */
1916 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x0);
1917 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, 0x0);
1918 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x0);
1919 
1920 	/* Enable the NIG in/out to the emac */
1921 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x1);
1922 	val = 0;
1923 	if ((params->feature_config_flags &
1924 	      FEATURE_CONFIG_PFC_ENABLED) ||
1925 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1926 		val = 1;
1927 
1928 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, val);
1929 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x1);
1930 
1931 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x0);
1932 
1933 	vars->mac_type = MAC_TYPE_EMAC;
1934 	return 0;
1935 }
1936 
bnx2x_update_pfc_bmac1(struct link_params * params,struct link_vars * vars)1937 static void bnx2x_update_pfc_bmac1(struct link_params *params,
1938 				   struct link_vars *vars)
1939 {
1940 	u32 wb_data[2];
1941 	struct bnx2x *bp = params->bp;
1942 	u32 bmac_addr =  params->port ? NIG_REG_INGRESS_BMAC1_MEM :
1943 		NIG_REG_INGRESS_BMAC0_MEM;
1944 
1945 	u32 val = 0x14;
1946 	if ((!(params->feature_config_flags &
1947 	      FEATURE_CONFIG_PFC_ENABLED)) &&
1948 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1949 		/* Enable BigMAC to react on received Pause packets */
1950 		val |= (1<<5);
1951 	wb_data[0] = val;
1952 	wb_data[1] = 0;
1953 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_CONTROL, wb_data, 2);
1954 
1955 	/* TX control */
1956 	val = 0xc0;
1957 	if (!(params->feature_config_flags &
1958 	      FEATURE_CONFIG_PFC_ENABLED) &&
1959 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1960 		val |= 0x800000;
1961 	wb_data[0] = val;
1962 	wb_data[1] = 0;
1963 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_CONTROL, wb_data, 2);
1964 }
1965 
bnx2x_update_pfc_bmac2(struct link_params * params,struct link_vars * vars,u8 is_lb)1966 static void bnx2x_update_pfc_bmac2(struct link_params *params,
1967 				   struct link_vars *vars,
1968 				   u8 is_lb)
1969 {
1970 	/* Set rx control: Strip CRC and enable BigMAC to relay
1971 	 * control packets to the system as well
1972 	 */
1973 	u32 wb_data[2];
1974 	struct bnx2x *bp = params->bp;
1975 	u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
1976 		NIG_REG_INGRESS_BMAC0_MEM;
1977 	u32 val = 0x14;
1978 
1979 	if ((!(params->feature_config_flags &
1980 	      FEATURE_CONFIG_PFC_ENABLED)) &&
1981 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1982 		/* Enable BigMAC to react on received Pause packets */
1983 		val |= (1<<5);
1984 	wb_data[0] = val;
1985 	wb_data[1] = 0;
1986 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_CONTROL, wb_data, 2);
1987 	udelay(30);
1988 
1989 	/* Tx control */
1990 	val = 0xc0;
1991 	if (!(params->feature_config_flags &
1992 				FEATURE_CONFIG_PFC_ENABLED) &&
1993 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1994 		val |= 0x800000;
1995 	wb_data[0] = val;
1996 	wb_data[1] = 0;
1997 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_CONTROL, wb_data, 2);
1998 
1999 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
2000 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
2001 		/* Enable PFC RX & TX & STATS and set 8 COS  */
2002 		wb_data[0] = 0x0;
2003 		wb_data[0] |= (1<<0);  /* RX */
2004 		wb_data[0] |= (1<<1);  /* TX */
2005 		wb_data[0] |= (1<<2);  /* Force initial Xon */
2006 		wb_data[0] |= (1<<3);  /* 8 cos */
2007 		wb_data[0] |= (1<<5);  /* STATS */
2008 		wb_data[1] = 0;
2009 		REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL,
2010 			    wb_data, 2);
2011 		/* Clear the force Xon */
2012 		wb_data[0] &= ~(1<<2);
2013 	} else {
2014 		DP(NETIF_MSG_LINK, "PFC is disabled\n");
2015 		/* Disable PFC RX & TX & STATS and set 8 COS */
2016 		wb_data[0] = 0x8;
2017 		wb_data[1] = 0;
2018 	}
2019 
2020 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL, wb_data, 2);
2021 
2022 	/* Set Time (based unit is 512 bit time) between automatic
2023 	 * re-sending of PP packets amd enable automatic re-send of
2024 	 * Per-Priroity Packet as long as pp_gen is asserted and
2025 	 * pp_disable is low.
2026 	 */
2027 	val = 0x8000;
2028 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2029 		val |= (1<<16); /* enable automatic re-send */
2030 
2031 	wb_data[0] = val;
2032 	wb_data[1] = 0;
2033 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_PAUSE_CONTROL,
2034 		    wb_data, 2);
2035 
2036 	/* mac control */
2037 	val = 0x3; /* Enable RX and TX */
2038 	if (is_lb) {
2039 		val |= 0x4; /* Local loopback */
2040 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2041 	}
2042 	/* When PFC enabled, Pass pause frames towards the NIG. */
2043 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2044 		val |= ((1<<6)|(1<<5));
2045 
2046 	wb_data[0] = val;
2047 	wb_data[1] = 0;
2048 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2049 }
2050 
2051 /******************************************************************************
2052 * Description:
2053 *  This function is needed because NIG ARB_CREDIT_WEIGHT_X are
2054 *  not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
2055 ******************************************************************************/
bnx2x_pfc_nig_rx_priority_mask(struct bnx2x * bp,u8 cos_entry,u32 priority_mask,u8 port)2056 static int bnx2x_pfc_nig_rx_priority_mask(struct bnx2x *bp,
2057 					   u8 cos_entry,
2058 					   u32 priority_mask, u8 port)
2059 {
2060 	u32 nig_reg_rx_priority_mask_add = 0;
2061 
2062 	switch (cos_entry) {
2063 	case 0:
2064 	     nig_reg_rx_priority_mask_add = (port) ?
2065 		 NIG_REG_P1_RX_COS0_PRIORITY_MASK :
2066 		 NIG_REG_P0_RX_COS0_PRIORITY_MASK;
2067 	     break;
2068 	case 1:
2069 	    nig_reg_rx_priority_mask_add = (port) ?
2070 		NIG_REG_P1_RX_COS1_PRIORITY_MASK :
2071 		NIG_REG_P0_RX_COS1_PRIORITY_MASK;
2072 	    break;
2073 	case 2:
2074 	    nig_reg_rx_priority_mask_add = (port) ?
2075 		NIG_REG_P1_RX_COS2_PRIORITY_MASK :
2076 		NIG_REG_P0_RX_COS2_PRIORITY_MASK;
2077 	    break;
2078 	case 3:
2079 	    if (port)
2080 		return -EINVAL;
2081 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS3_PRIORITY_MASK;
2082 	    break;
2083 	case 4:
2084 	    if (port)
2085 		return -EINVAL;
2086 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS4_PRIORITY_MASK;
2087 	    break;
2088 	case 5:
2089 	    if (port)
2090 		return -EINVAL;
2091 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS5_PRIORITY_MASK;
2092 	    break;
2093 	}
2094 
2095 	REG_WR(bp, nig_reg_rx_priority_mask_add, priority_mask);
2096 
2097 	return 0;
2098 }
bnx2x_update_mng(struct link_params * params,u32 link_status)2099 static void bnx2x_update_mng(struct link_params *params, u32 link_status)
2100 {
2101 	struct bnx2x *bp = params->bp;
2102 
2103 	REG_WR(bp, params->shmem_base +
2104 	       offsetof(struct shmem_region,
2105 			port_mb[params->port].link_status), link_status);
2106 }
2107 
bnx2x_update_link_attr(struct link_params * params,u32 link_attr)2108 static void bnx2x_update_link_attr(struct link_params *params, u32 link_attr)
2109 {
2110 	struct bnx2x *bp = params->bp;
2111 
2112 	if (SHMEM2_HAS(bp, link_attr_sync))
2113 		REG_WR(bp, params->shmem2_base +
2114 		       offsetof(struct shmem2_region,
2115 				link_attr_sync[params->port]), link_attr);
2116 }
2117 
bnx2x_update_pfc_nig(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * nig_params)2118 static void bnx2x_update_pfc_nig(struct link_params *params,
2119 		struct link_vars *vars,
2120 		struct bnx2x_nig_brb_pfc_port_params *nig_params)
2121 {
2122 	u32 xcm_mask = 0, ppp_enable = 0, pause_enable = 0, llfc_out_en = 0;
2123 	u32 llfc_enable = 0, xcm_out_en = 0, hwpfc_enable = 0;
2124 	u32 pkt_priority_to_cos = 0;
2125 	struct bnx2x *bp = params->bp;
2126 	u8 port = params->port;
2127 
2128 	int set_pfc = params->feature_config_flags &
2129 		FEATURE_CONFIG_PFC_ENABLED;
2130 	DP(NETIF_MSG_LINK, "updating pfc nig parameters\n");
2131 
2132 	/* When NIG_LLH0_XCM_MASK_REG_LLHX_XCM_MASK_BCN bit is set
2133 	 * MAC control frames (that are not pause packets)
2134 	 * will be forwarded to the XCM.
2135 	 */
2136 	xcm_mask = REG_RD(bp, port ? NIG_REG_LLH1_XCM_MASK :
2137 			  NIG_REG_LLH0_XCM_MASK);
2138 	/* NIG params will override non PFC params, since it's possible to
2139 	 * do transition from PFC to SAFC
2140 	 */
2141 	if (set_pfc) {
2142 		pause_enable = 0;
2143 		llfc_out_en = 0;
2144 		llfc_enable = 0;
2145 		if (CHIP_IS_E3(bp))
2146 			ppp_enable = 0;
2147 		else
2148 			ppp_enable = 1;
2149 		xcm_mask &= ~(port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2150 				     NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2151 		xcm_out_en = 0;
2152 		hwpfc_enable = 1;
2153 	} else  {
2154 		if (nig_params) {
2155 			llfc_out_en = nig_params->llfc_out_en;
2156 			llfc_enable = nig_params->llfc_enable;
2157 			pause_enable = nig_params->pause_enable;
2158 		} else  /* Default non PFC mode - PAUSE */
2159 			pause_enable = 1;
2160 
2161 		xcm_mask |= (port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2162 			NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2163 		xcm_out_en = 1;
2164 	}
2165 
2166 	if (CHIP_IS_E3(bp))
2167 		REG_WR(bp, port ? NIG_REG_BRB1_PAUSE_IN_EN :
2168 		       NIG_REG_BRB0_PAUSE_IN_EN, pause_enable);
2169 	REG_WR(bp, port ? NIG_REG_LLFC_OUT_EN_1 :
2170 	       NIG_REG_LLFC_OUT_EN_0, llfc_out_en);
2171 	REG_WR(bp, port ? NIG_REG_LLFC_ENABLE_1 :
2172 	       NIG_REG_LLFC_ENABLE_0, llfc_enable);
2173 	REG_WR(bp, port ? NIG_REG_PAUSE_ENABLE_1 :
2174 	       NIG_REG_PAUSE_ENABLE_0, pause_enable);
2175 
2176 	REG_WR(bp, port ? NIG_REG_PPP_ENABLE_1 :
2177 	       NIG_REG_PPP_ENABLE_0, ppp_enable);
2178 
2179 	REG_WR(bp, port ? NIG_REG_LLH1_XCM_MASK :
2180 	       NIG_REG_LLH0_XCM_MASK, xcm_mask);
2181 
2182 	REG_WR(bp, port ? NIG_REG_LLFC_EGRESS_SRC_ENABLE_1 :
2183 	       NIG_REG_LLFC_EGRESS_SRC_ENABLE_0, 0x7);
2184 
2185 	/* Output enable for RX_XCM # IF */
2186 	REG_WR(bp, port ? NIG_REG_XCM1_OUT_EN :
2187 	       NIG_REG_XCM0_OUT_EN, xcm_out_en);
2188 
2189 	/* HW PFC TX enable */
2190 	REG_WR(bp, port ? NIG_REG_P1_HWPFC_ENABLE :
2191 	       NIG_REG_P0_HWPFC_ENABLE, hwpfc_enable);
2192 
2193 	if (nig_params) {
2194 		u8 i = 0;
2195 		pkt_priority_to_cos = nig_params->pkt_priority_to_cos;
2196 
2197 		for (i = 0; i < nig_params->num_of_rx_cos_priority_mask; i++)
2198 			bnx2x_pfc_nig_rx_priority_mask(bp, i,
2199 		nig_params->rx_cos_priority_mask[i], port);
2200 
2201 		REG_WR(bp, port ? NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_1 :
2202 		       NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_0,
2203 		       nig_params->llfc_high_priority_classes);
2204 
2205 		REG_WR(bp, port ? NIG_REG_LLFC_LOW_PRIORITY_CLASSES_1 :
2206 		       NIG_REG_LLFC_LOW_PRIORITY_CLASSES_0,
2207 		       nig_params->llfc_low_priority_classes);
2208 	}
2209 	REG_WR(bp, port ? NIG_REG_P1_PKT_PRIORITY_TO_COS :
2210 	       NIG_REG_P0_PKT_PRIORITY_TO_COS,
2211 	       pkt_priority_to_cos);
2212 }
2213 
bnx2x_update_pfc(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * pfc_params)2214 int bnx2x_update_pfc(struct link_params *params,
2215 		      struct link_vars *vars,
2216 		      struct bnx2x_nig_brb_pfc_port_params *pfc_params)
2217 {
2218 	/* The PFC and pause are orthogonal to one another, meaning when
2219 	 * PFC is enabled, the pause are disabled, and when PFC is
2220 	 * disabled, pause are set according to the pause result.
2221 	 */
2222 	u32 val;
2223 	struct bnx2x *bp = params->bp;
2224 	u8 bmac_loopback = (params->loopback_mode == LOOPBACK_BMAC);
2225 
2226 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2227 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
2228 	else
2229 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
2230 
2231 	bnx2x_update_mng(params, vars->link_status);
2232 
2233 	/* Update NIG params */
2234 	bnx2x_update_pfc_nig(params, vars, pfc_params);
2235 
2236 	if (!vars->link_up)
2237 		return 0;
2238 
2239 	DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n");
2240 
2241 	if (CHIP_IS_E3(bp)) {
2242 		if (vars->mac_type == MAC_TYPE_XMAC)
2243 			bnx2x_update_pfc_xmac(params, vars, 0);
2244 	} else {
2245 		val = REG_RD(bp, MISC_REG_RESET_REG_2);
2246 		if ((val &
2247 		     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))
2248 		    == 0) {
2249 			DP(NETIF_MSG_LINK, "About to update PFC in EMAC\n");
2250 			bnx2x_emac_enable(params, vars, 0);
2251 			return 0;
2252 		}
2253 		if (CHIP_IS_E2(bp))
2254 			bnx2x_update_pfc_bmac2(params, vars, bmac_loopback);
2255 		else
2256 			bnx2x_update_pfc_bmac1(params, vars);
2257 
2258 		val = 0;
2259 		if ((params->feature_config_flags &
2260 		     FEATURE_CONFIG_PFC_ENABLED) ||
2261 		    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2262 			val = 1;
2263 		REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + params->port*4, val);
2264 	}
2265 	return 0;
2266 }
2267 
bnx2x_bmac1_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2268 static int bnx2x_bmac1_enable(struct link_params *params,
2269 			      struct link_vars *vars,
2270 			      u8 is_lb)
2271 {
2272 	struct bnx2x *bp = params->bp;
2273 	u8 port = params->port;
2274 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2275 			       NIG_REG_INGRESS_BMAC0_MEM;
2276 	u32 wb_data[2];
2277 	u32 val;
2278 
2279 	DP(NETIF_MSG_LINK, "Enabling BigMAC1\n");
2280 
2281 	/* XGXS control */
2282 	wb_data[0] = 0x3c;
2283 	wb_data[1] = 0;
2284 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_XGXS_CONTROL,
2285 		    wb_data, 2);
2286 
2287 	/* TX MAC SA */
2288 	wb_data[0] = ((params->mac_addr[2] << 24) |
2289 		       (params->mac_addr[3] << 16) |
2290 		       (params->mac_addr[4] << 8) |
2291 			params->mac_addr[5]);
2292 	wb_data[1] = ((params->mac_addr[0] << 8) |
2293 			params->mac_addr[1]);
2294 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_SOURCE_ADDR, wb_data, 2);
2295 
2296 	/* MAC control */
2297 	val = 0x3;
2298 	if (is_lb) {
2299 		val |= 0x4;
2300 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2301 	}
2302 	wb_data[0] = val;
2303 	wb_data[1] = 0;
2304 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_CONTROL, wb_data, 2);
2305 
2306 	/* Set rx mtu */
2307 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD;
2308 	wb_data[1] = 0;
2309 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_MAX_SIZE, wb_data, 2);
2310 
2311 	bnx2x_update_pfc_bmac1(params, vars);
2312 
2313 	/* Set tx mtu */
2314 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD;
2315 	wb_data[1] = 0;
2316 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_MAX_SIZE, wb_data, 2);
2317 
2318 	/* Set cnt max size */
2319 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD;
2320 	wb_data[1] = 0;
2321 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2322 
2323 	/* Configure SAFC */
2324 	wb_data[0] = 0x1000200;
2325 	wb_data[1] = 0;
2326 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_LLFC_MSG_FLDS,
2327 		    wb_data, 2);
2328 
2329 	return 0;
2330 }
2331 
bnx2x_bmac2_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2332 static int bnx2x_bmac2_enable(struct link_params *params,
2333 			      struct link_vars *vars,
2334 			      u8 is_lb)
2335 {
2336 	struct bnx2x *bp = params->bp;
2337 	u8 port = params->port;
2338 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2339 			       NIG_REG_INGRESS_BMAC0_MEM;
2340 	u32 wb_data[2];
2341 
2342 	DP(NETIF_MSG_LINK, "Enabling BigMAC2\n");
2343 
2344 	wb_data[0] = 0;
2345 	wb_data[1] = 0;
2346 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2347 	udelay(30);
2348 
2349 	/* XGXS control: Reset phy HW, MDIO registers, PHY PLL and BMAC */
2350 	wb_data[0] = 0x3c;
2351 	wb_data[1] = 0;
2352 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_XGXS_CONTROL,
2353 		    wb_data, 2);
2354 
2355 	udelay(30);
2356 
2357 	/* TX MAC SA */
2358 	wb_data[0] = ((params->mac_addr[2] << 24) |
2359 		       (params->mac_addr[3] << 16) |
2360 		       (params->mac_addr[4] << 8) |
2361 			params->mac_addr[5]);
2362 	wb_data[1] = ((params->mac_addr[0] << 8) |
2363 			params->mac_addr[1]);
2364 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_SOURCE_ADDR,
2365 		    wb_data, 2);
2366 
2367 	udelay(30);
2368 
2369 	/* Configure SAFC */
2370 	wb_data[0] = 0x1000200;
2371 	wb_data[1] = 0;
2372 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_LLFC_MSG_FLDS,
2373 		    wb_data, 2);
2374 	udelay(30);
2375 
2376 	/* Set RX MTU */
2377 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD;
2378 	wb_data[1] = 0;
2379 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_MAX_SIZE, wb_data, 2);
2380 	udelay(30);
2381 
2382 	/* Set TX MTU */
2383 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD;
2384 	wb_data[1] = 0;
2385 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_MAX_SIZE, wb_data, 2);
2386 	udelay(30);
2387 	/* Set cnt max size */
2388 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD - 2;
2389 	wb_data[1] = 0;
2390 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2391 	udelay(30);
2392 	bnx2x_update_pfc_bmac2(params, vars, is_lb);
2393 
2394 	return 0;
2395 }
2396 
bnx2x_bmac_enable(struct link_params * params,struct link_vars * vars,u8 is_lb,u8 reset_bmac)2397 static int bnx2x_bmac_enable(struct link_params *params,
2398 			     struct link_vars *vars,
2399 			     u8 is_lb, u8 reset_bmac)
2400 {
2401 	int rc = 0;
2402 	u8 port = params->port;
2403 	struct bnx2x *bp = params->bp;
2404 	u32 val;
2405 	/* Reset and unreset the BigMac */
2406 	if (reset_bmac) {
2407 		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
2408 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2409 		usleep_range(1000, 2000);
2410 	}
2411 
2412 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
2413 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2414 
2415 	/* Enable access for bmac registers */
2416 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x1);
2417 
2418 	/* Enable BMAC according to BMAC type*/
2419 	if (CHIP_IS_E2(bp))
2420 		rc = bnx2x_bmac2_enable(params, vars, is_lb);
2421 	else
2422 		rc = bnx2x_bmac1_enable(params, vars, is_lb);
2423 	REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0x1);
2424 	REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 0x0);
2425 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 0x0);
2426 	val = 0;
2427 	if ((params->feature_config_flags &
2428 	      FEATURE_CONFIG_PFC_ENABLED) ||
2429 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2430 		val = 1;
2431 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, val);
2432 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x0);
2433 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x0);
2434 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, 0x0);
2435 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x1);
2436 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x1);
2437 
2438 	vars->mac_type = MAC_TYPE_BMAC;
2439 	return rc;
2440 }
2441 
bnx2x_set_bmac_rx(struct bnx2x * bp,u32 chip_id,u8 port,u8 en)2442 static void bnx2x_set_bmac_rx(struct bnx2x *bp, u32 chip_id, u8 port, u8 en)
2443 {
2444 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2445 			NIG_REG_INGRESS_BMAC0_MEM;
2446 	u32 wb_data[2];
2447 	u32 nig_bmac_enable = REG_RD(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4);
2448 
2449 	if (CHIP_IS_E2(bp))
2450 		bmac_addr += BIGMAC2_REGISTER_BMAC_CONTROL;
2451 	else
2452 		bmac_addr += BIGMAC_REGISTER_BMAC_CONTROL;
2453 	/* Only if the bmac is out of reset */
2454 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
2455 			(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port) &&
2456 	    nig_bmac_enable) {
2457 		/* Clear Rx Enable bit in BMAC_CONTROL register */
2458 		REG_RD_DMAE(bp, bmac_addr, wb_data, 2);
2459 		if (en)
2460 			wb_data[0] |= BMAC_CONTROL_RX_ENABLE;
2461 		else
2462 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
2463 		REG_WR_DMAE(bp, bmac_addr, wb_data, 2);
2464 		usleep_range(1000, 2000);
2465 	}
2466 }
2467 
bnx2x_pbf_update(struct link_params * params,u32 flow_ctrl,u32 line_speed)2468 static int bnx2x_pbf_update(struct link_params *params, u32 flow_ctrl,
2469 			    u32 line_speed)
2470 {
2471 	struct bnx2x *bp = params->bp;
2472 	u8 port = params->port;
2473 	u32 init_crd, crd;
2474 	u32 count = 1000;
2475 
2476 	/* Disable port */
2477 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x1);
2478 
2479 	/* Wait for init credit */
2480 	init_crd = REG_RD(bp, PBF_REG_P0_INIT_CRD + port*4);
2481 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2482 	DP(NETIF_MSG_LINK, "init_crd 0x%x  crd 0x%x\n", init_crd, crd);
2483 
2484 	while ((init_crd != crd) && count) {
2485 		usleep_range(5000, 10000);
2486 		crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2487 		count--;
2488 	}
2489 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2490 	if (init_crd != crd) {
2491 		DP(NETIF_MSG_LINK, "BUG! init_crd 0x%x != crd 0x%x\n",
2492 			  init_crd, crd);
2493 		return -EINVAL;
2494 	}
2495 
2496 	if (flow_ctrl & BNX2X_FLOW_CTRL_RX ||
2497 	    line_speed == SPEED_10 ||
2498 	    line_speed == SPEED_100 ||
2499 	    line_speed == SPEED_1000 ||
2500 	    line_speed == SPEED_2500) {
2501 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 1);
2502 		/* Update threshold */
2503 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, 0);
2504 		/* Update init credit */
2505 		init_crd = 778;		/* (800-18-4) */
2506 
2507 	} else {
2508 		u32 thresh = (ETH_MAX_JUMBO_PACKET_SIZE +
2509 			      ETH_OVERHEAD)/16;
2510 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
2511 		/* Update threshold */
2512 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, thresh);
2513 		/* Update init credit */
2514 		switch (line_speed) {
2515 		case SPEED_10000:
2516 			init_crd = thresh + 553 - 22;
2517 			break;
2518 		default:
2519 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
2520 				  line_speed);
2521 			return -EINVAL;
2522 		}
2523 	}
2524 	REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, init_crd);
2525 	DP(NETIF_MSG_LINK, "PBF updated to speed %d credit %d\n",
2526 		 line_speed, init_crd);
2527 
2528 	/* Probe the credit changes */
2529 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x1);
2530 	usleep_range(5000, 10000);
2531 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x0);
2532 
2533 	/* Enable port */
2534 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x0);
2535 	return 0;
2536 }
2537 
2538 /**
2539  * bnx2x_get_emac_base - retrive emac base address
2540  *
2541  * @bp:			driver handle
2542  * @mdc_mdio_access:	access type
2543  * @port:		port id
2544  *
2545  * This function selects the MDC/MDIO access (through emac0 or
2546  * emac1) depend on the mdc_mdio_access, port, port swapped. Each
2547  * phy has a default access mode, which could also be overridden
2548  * by nvram configuration. This parameter, whether this is the
2549  * default phy configuration, or the nvram overrun
2550  * configuration, is passed here as mdc_mdio_access and selects
2551  * the emac_base for the CL45 read/writes operations
2552  */
bnx2x_get_emac_base(struct bnx2x * bp,u32 mdc_mdio_access,u8 port)2553 static u32 bnx2x_get_emac_base(struct bnx2x *bp,
2554 			       u32 mdc_mdio_access, u8 port)
2555 {
2556 	u32 emac_base = 0;
2557 	switch (mdc_mdio_access) {
2558 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_PHY_TYPE:
2559 		break;
2560 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC0:
2561 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2562 			emac_base = GRCBASE_EMAC1;
2563 		else
2564 			emac_base = GRCBASE_EMAC0;
2565 		break;
2566 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1:
2567 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2568 			emac_base = GRCBASE_EMAC0;
2569 		else
2570 			emac_base = GRCBASE_EMAC1;
2571 		break;
2572 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH:
2573 		emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
2574 		break;
2575 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED:
2576 		emac_base = (port) ? GRCBASE_EMAC0 : GRCBASE_EMAC1;
2577 		break;
2578 	default:
2579 		break;
2580 	}
2581 	return emac_base;
2582 
2583 }
2584 
2585 /******************************************************************/
2586 /*			CL22 access functions			  */
2587 /******************************************************************/
bnx2x_cl22_write(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 val)2588 static int bnx2x_cl22_write(struct bnx2x *bp,
2589 				       struct bnx2x_phy *phy,
2590 				       u16 reg, u16 val)
2591 {
2592 	u32 tmp, mode;
2593 	u8 i;
2594 	int rc = 0;
2595 	/* Switch to CL22 */
2596 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2597 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2598 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2599 
2600 	/* Address */
2601 	tmp = ((phy->addr << 21) | (reg << 16) | val |
2602 	       EMAC_MDIO_COMM_COMMAND_WRITE_22 |
2603 	       EMAC_MDIO_COMM_START_BUSY);
2604 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2605 
2606 	for (i = 0; i < 50; i++) {
2607 		udelay(10);
2608 
2609 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2610 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2611 			udelay(5);
2612 			break;
2613 		}
2614 	}
2615 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2616 		DP(NETIF_MSG_LINK, "write phy register failed\n");
2617 		rc = -EFAULT;
2618 	}
2619 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2620 	return rc;
2621 }
2622 
bnx2x_cl22_read(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 * ret_val)2623 static int bnx2x_cl22_read(struct bnx2x *bp,
2624 				      struct bnx2x_phy *phy,
2625 				      u16 reg, u16 *ret_val)
2626 {
2627 	u32 val, mode;
2628 	u16 i;
2629 	int rc = 0;
2630 
2631 	/* Switch to CL22 */
2632 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2633 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2634 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2635 
2636 	/* Address */
2637 	val = ((phy->addr << 21) | (reg << 16) |
2638 	       EMAC_MDIO_COMM_COMMAND_READ_22 |
2639 	       EMAC_MDIO_COMM_START_BUSY);
2640 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2641 
2642 	for (i = 0; i < 50; i++) {
2643 		udelay(10);
2644 
2645 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2646 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2647 			*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2648 			udelay(5);
2649 			break;
2650 		}
2651 	}
2652 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2653 		DP(NETIF_MSG_LINK, "read phy register failed\n");
2654 
2655 		*ret_val = 0;
2656 		rc = -EFAULT;
2657 	}
2658 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2659 	return rc;
2660 }
2661 
2662 /******************************************************************/
2663 /*			CL45 access functions			  */
2664 /******************************************************************/
bnx2x_cl45_read(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 * ret_val)2665 static int bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
2666 			   u8 devad, u16 reg, u16 *ret_val)
2667 {
2668 	u32 val;
2669 	u16 i;
2670 	int rc = 0;
2671 	u32 chip_id;
2672 	if (phy->flags & FLAGS_MDC_MDIO_WA_G) {
2673 		chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
2674 			  ((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
2675 		bnx2x_set_mdio_clk(bp, chip_id, phy->mdio_ctrl);
2676 	}
2677 
2678 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2679 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2680 			      EMAC_MDIO_STATUS_10MB);
2681 	/* Address */
2682 	val = ((phy->addr << 21) | (devad << 16) | reg |
2683 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
2684 	       EMAC_MDIO_COMM_START_BUSY);
2685 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2686 
2687 	for (i = 0; i < 50; i++) {
2688 		udelay(10);
2689 
2690 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2691 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2692 			udelay(5);
2693 			break;
2694 		}
2695 	}
2696 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2697 		DP(NETIF_MSG_LINK, "read phy register failed\n");
2698 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2699 		*ret_val = 0;
2700 		rc = -EFAULT;
2701 	} else {
2702 		/* Data */
2703 		val = ((phy->addr << 21) | (devad << 16) |
2704 		       EMAC_MDIO_COMM_COMMAND_READ_45 |
2705 		       EMAC_MDIO_COMM_START_BUSY);
2706 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2707 
2708 		for (i = 0; i < 50; i++) {
2709 			udelay(10);
2710 
2711 			val = REG_RD(bp, phy->mdio_ctrl +
2712 				     EMAC_REG_EMAC_MDIO_COMM);
2713 			if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2714 				*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2715 				break;
2716 			}
2717 		}
2718 		if (val & EMAC_MDIO_COMM_START_BUSY) {
2719 			DP(NETIF_MSG_LINK, "read phy register failed\n");
2720 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2721 			*ret_val = 0;
2722 			rc = -EFAULT;
2723 		}
2724 	}
2725 	/* Work around for E3 A0 */
2726 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
2727 		phy->flags ^= FLAGS_DUMMY_READ;
2728 		if (phy->flags & FLAGS_DUMMY_READ) {
2729 			u16 temp_val;
2730 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
2731 		}
2732 	}
2733 
2734 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2735 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2736 			       EMAC_MDIO_STATUS_10MB);
2737 	return rc;
2738 }
2739 
bnx2x_cl45_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 val)2740 static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
2741 			    u8 devad, u16 reg, u16 val)
2742 {
2743 	u32 tmp;
2744 	u8 i;
2745 	int rc = 0;
2746 	u32 chip_id;
2747 	if (phy->flags & FLAGS_MDC_MDIO_WA_G) {
2748 		chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
2749 			  ((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
2750 		bnx2x_set_mdio_clk(bp, chip_id, phy->mdio_ctrl);
2751 	}
2752 
2753 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2754 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2755 			      EMAC_MDIO_STATUS_10MB);
2756 
2757 	/* Address */
2758 	tmp = ((phy->addr << 21) | (devad << 16) | reg |
2759 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
2760 	       EMAC_MDIO_COMM_START_BUSY);
2761 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2762 
2763 	for (i = 0; i < 50; i++) {
2764 		udelay(10);
2765 
2766 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2767 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2768 			udelay(5);
2769 			break;
2770 		}
2771 	}
2772 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2773 		DP(NETIF_MSG_LINK, "write phy register failed\n");
2774 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2775 		rc = -EFAULT;
2776 	} else {
2777 		/* Data */
2778 		tmp = ((phy->addr << 21) | (devad << 16) | val |
2779 		       EMAC_MDIO_COMM_COMMAND_WRITE_45 |
2780 		       EMAC_MDIO_COMM_START_BUSY);
2781 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2782 
2783 		for (i = 0; i < 50; i++) {
2784 			udelay(10);
2785 
2786 			tmp = REG_RD(bp, phy->mdio_ctrl +
2787 				     EMAC_REG_EMAC_MDIO_COMM);
2788 			if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2789 				udelay(5);
2790 				break;
2791 			}
2792 		}
2793 		if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2794 			DP(NETIF_MSG_LINK, "write phy register failed\n");
2795 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2796 			rc = -EFAULT;
2797 		}
2798 	}
2799 	/* Work around for E3 A0 */
2800 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
2801 		phy->flags ^= FLAGS_DUMMY_READ;
2802 		if (phy->flags & FLAGS_DUMMY_READ) {
2803 			u16 temp_val;
2804 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
2805 		}
2806 	}
2807 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2808 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2809 			       EMAC_MDIO_STATUS_10MB);
2810 	return rc;
2811 }
2812 
2813 /******************************************************************/
2814 /*			EEE section				   */
2815 /******************************************************************/
bnx2x_eee_has_cap(struct link_params * params)2816 static u8 bnx2x_eee_has_cap(struct link_params *params)
2817 {
2818 	struct bnx2x *bp = params->bp;
2819 
2820 	if (REG_RD(bp, params->shmem2_base) <=
2821 		   offsetof(struct shmem2_region, eee_status[params->port]))
2822 		return 0;
2823 
2824 	return 1;
2825 }
2826 
bnx2x_eee_nvram_to_time(u32 nvram_mode,u32 * idle_timer)2827 static int bnx2x_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
2828 {
2829 	switch (nvram_mode) {
2830 	case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
2831 		*idle_timer = EEE_MODE_NVRAM_BALANCED_TIME;
2832 		break;
2833 	case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
2834 		*idle_timer = EEE_MODE_NVRAM_AGGRESSIVE_TIME;
2835 		break;
2836 	case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
2837 		*idle_timer = EEE_MODE_NVRAM_LATENCY_TIME;
2838 		break;
2839 	default:
2840 		*idle_timer = 0;
2841 		break;
2842 	}
2843 
2844 	return 0;
2845 }
2846 
bnx2x_eee_time_to_nvram(u32 idle_timer,u32 * nvram_mode)2847 static int bnx2x_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
2848 {
2849 	switch (idle_timer) {
2850 	case EEE_MODE_NVRAM_BALANCED_TIME:
2851 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
2852 		break;
2853 	case EEE_MODE_NVRAM_AGGRESSIVE_TIME:
2854 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
2855 		break;
2856 	case EEE_MODE_NVRAM_LATENCY_TIME:
2857 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
2858 		break;
2859 	default:
2860 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
2861 		break;
2862 	}
2863 
2864 	return 0;
2865 }
2866 
bnx2x_eee_calc_timer(struct link_params * params)2867 static u32 bnx2x_eee_calc_timer(struct link_params *params)
2868 {
2869 	u32 eee_mode, eee_idle;
2870 	struct bnx2x *bp = params->bp;
2871 
2872 	if (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) {
2873 		if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
2874 			/* time value in eee_mode --> used directly*/
2875 			eee_idle = params->eee_mode & EEE_MODE_TIMER_MASK;
2876 		} else {
2877 			/* hsi value in eee_mode --> time */
2878 			if (bnx2x_eee_nvram_to_time(params->eee_mode &
2879 						    EEE_MODE_NVRAM_MASK,
2880 						    &eee_idle))
2881 				return 0;
2882 		}
2883 	} else {
2884 		/* hsi values in nvram --> time*/
2885 		eee_mode = ((REG_RD(bp, params->shmem_base +
2886 				    offsetof(struct shmem_region, dev_info.
2887 				    port_feature_config[params->port].
2888 				    eee_power_mode)) &
2889 			     PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
2890 			    PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
2891 
2892 		if (bnx2x_eee_nvram_to_time(eee_mode, &eee_idle))
2893 			return 0;
2894 	}
2895 
2896 	return eee_idle;
2897 }
2898 
bnx2x_eee_set_timers(struct link_params * params,struct link_vars * vars)2899 static int bnx2x_eee_set_timers(struct link_params *params,
2900 				   struct link_vars *vars)
2901 {
2902 	u32 eee_idle = 0, eee_mode;
2903 	struct bnx2x *bp = params->bp;
2904 
2905 	eee_idle = bnx2x_eee_calc_timer(params);
2906 
2907 	if (eee_idle) {
2908 		REG_WR(bp, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
2909 		       eee_idle);
2910 	} else if ((params->eee_mode & EEE_MODE_ENABLE_LPI) &&
2911 		   (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) &&
2912 		   (params->eee_mode & EEE_MODE_OUTPUT_TIME)) {
2913 		DP(NETIF_MSG_LINK, "Error: Tx LPI is enabled with timer 0\n");
2914 		return -EINVAL;
2915 	}
2916 
2917 	vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
2918 	if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
2919 		/* eee_idle in 1u --> eee_status in 16u */
2920 		eee_idle >>= 4;
2921 		vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
2922 				    SHMEM_EEE_TIME_OUTPUT_BIT;
2923 	} else {
2924 		if (bnx2x_eee_time_to_nvram(eee_idle, &eee_mode))
2925 			return -EINVAL;
2926 		vars->eee_status |= eee_mode;
2927 	}
2928 
2929 	return 0;
2930 }
2931 
bnx2x_eee_initial_config(struct link_params * params,struct link_vars * vars,u8 mode)2932 static int bnx2x_eee_initial_config(struct link_params *params,
2933 				     struct link_vars *vars, u8 mode)
2934 {
2935 	vars->eee_status |= ((u32) mode) << SHMEM_EEE_SUPPORTED_SHIFT;
2936 
2937 	/* Propagate params' bits --> vars (for migration exposure) */
2938 	if (params->eee_mode & EEE_MODE_ENABLE_LPI)
2939 		vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
2940 	else
2941 		vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
2942 
2943 	if (params->eee_mode & EEE_MODE_ADV_LPI)
2944 		vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
2945 	else
2946 		vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
2947 
2948 	return bnx2x_eee_set_timers(params, vars);
2949 }
2950 
bnx2x_eee_disable(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)2951 static int bnx2x_eee_disable(struct bnx2x_phy *phy,
2952 				struct link_params *params,
2953 				struct link_vars *vars)
2954 {
2955 	struct bnx2x *bp = params->bp;
2956 
2957 	/* Make Certain LPI is disabled */
2958 	REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
2959 
2960 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x0);
2961 
2962 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
2963 
2964 	return 0;
2965 }
2966 
bnx2x_eee_advertise(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u8 modes)2967 static int bnx2x_eee_advertise(struct bnx2x_phy *phy,
2968 				  struct link_params *params,
2969 				  struct link_vars *vars, u8 modes)
2970 {
2971 	struct bnx2x *bp = params->bp;
2972 	u16 val = 0;
2973 
2974 	/* Mask events preventing LPI generation */
2975 	REG_WR(bp, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
2976 
2977 	if (modes & SHMEM_EEE_10G_ADV) {
2978 		DP(NETIF_MSG_LINK, "Advertise 10GBase-T EEE\n");
2979 		val |= 0x8;
2980 	}
2981 	if (modes & SHMEM_EEE_1G_ADV) {
2982 		DP(NETIF_MSG_LINK, "Advertise 1GBase-T EEE\n");
2983 		val |= 0x4;
2984 	}
2985 
2986 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, val);
2987 
2988 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
2989 	vars->eee_status |= (modes << SHMEM_EEE_ADV_STATUS_SHIFT);
2990 
2991 	return 0;
2992 }
2993 
bnx2x_update_mng_eee(struct link_params * params,u32 eee_status)2994 static void bnx2x_update_mng_eee(struct link_params *params, u32 eee_status)
2995 {
2996 	struct bnx2x *bp = params->bp;
2997 
2998 	if (bnx2x_eee_has_cap(params))
2999 		REG_WR(bp, params->shmem2_base +
3000 		       offsetof(struct shmem2_region,
3001 				eee_status[params->port]), eee_status);
3002 }
3003 
bnx2x_eee_an_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3004 static void bnx2x_eee_an_resolve(struct bnx2x_phy *phy,
3005 				  struct link_params *params,
3006 				  struct link_vars *vars)
3007 {
3008 	struct bnx2x *bp = params->bp;
3009 	u16 adv = 0, lp = 0;
3010 	u32 lp_adv = 0;
3011 	u8 neg = 0;
3012 
3013 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, &adv);
3014 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_LP_EEE_ADV, &lp);
3015 
3016 	if (lp & 0x2) {
3017 		lp_adv |= SHMEM_EEE_100M_ADV;
3018 		if (adv & 0x2) {
3019 			if (vars->line_speed == SPEED_100)
3020 				neg = 1;
3021 			DP(NETIF_MSG_LINK, "EEE negotiated - 100M\n");
3022 		}
3023 	}
3024 	if (lp & 0x14) {
3025 		lp_adv |= SHMEM_EEE_1G_ADV;
3026 		if (adv & 0x14) {
3027 			if (vars->line_speed == SPEED_1000)
3028 				neg = 1;
3029 			DP(NETIF_MSG_LINK, "EEE negotiated - 1G\n");
3030 		}
3031 	}
3032 	if (lp & 0x68) {
3033 		lp_adv |= SHMEM_EEE_10G_ADV;
3034 		if (adv & 0x68) {
3035 			if (vars->line_speed == SPEED_10000)
3036 				neg = 1;
3037 			DP(NETIF_MSG_LINK, "EEE negotiated - 10G\n");
3038 		}
3039 	}
3040 
3041 	vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
3042 	vars->eee_status |= (lp_adv << SHMEM_EEE_LP_ADV_STATUS_SHIFT);
3043 
3044 	if (neg) {
3045 		DP(NETIF_MSG_LINK, "EEE is active\n");
3046 		vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
3047 	}
3048 
3049 }
3050 
3051 /******************************************************************/
3052 /*			BSC access functions from E3	          */
3053 /******************************************************************/
bnx2x_bsc_module_sel(struct link_params * params)3054 static void bnx2x_bsc_module_sel(struct link_params *params)
3055 {
3056 	int idx;
3057 	u32 board_cfg, sfp_ctrl;
3058 	u32 i2c_pins[I2C_SWITCH_WIDTH], i2c_val[I2C_SWITCH_WIDTH];
3059 	struct bnx2x *bp = params->bp;
3060 	u8 port = params->port;
3061 	/* Read I2C output PINs */
3062 	board_cfg = REG_RD(bp, params->shmem_base +
3063 			   offsetof(struct shmem_region,
3064 				    dev_info.shared_hw_config.board));
3065 	i2c_pins[I2C_BSC0] = board_cfg & SHARED_HW_CFG_E3_I2C_MUX0_MASK;
3066 	i2c_pins[I2C_BSC1] = (board_cfg & SHARED_HW_CFG_E3_I2C_MUX1_MASK) >>
3067 			SHARED_HW_CFG_E3_I2C_MUX1_SHIFT;
3068 
3069 	/* Read I2C output value */
3070 	sfp_ctrl = REG_RD(bp, params->shmem_base +
3071 			  offsetof(struct shmem_region,
3072 				 dev_info.port_hw_config[port].e3_cmn_pin_cfg));
3073 	i2c_val[I2C_BSC0] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX0_MASK) > 0;
3074 	i2c_val[I2C_BSC1] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX1_MASK) > 0;
3075 	DP(NETIF_MSG_LINK, "Setting BSC switch\n");
3076 	for (idx = 0; idx < I2C_SWITCH_WIDTH; idx++)
3077 		bnx2x_set_cfg_pin(bp, i2c_pins[idx], i2c_val[idx]);
3078 }
3079 
bnx2x_bsc_read(struct link_params * params,struct bnx2x * bp,u8 sl_devid,u16 sl_addr,u8 lc_addr,u8 xfer_cnt,u32 * data_array)3080 static int bnx2x_bsc_read(struct link_params *params,
3081 			  struct bnx2x *bp,
3082 			  u8 sl_devid,
3083 			  u16 sl_addr,
3084 			  u8 lc_addr,
3085 			  u8 xfer_cnt,
3086 			  u32 *data_array)
3087 {
3088 	u64 t0, delta;
3089 	u32 val, i;
3090 	int rc = 0;
3091 
3092 	if (xfer_cnt > 16) {
3093 		DP(NETIF_MSG_LINK, "invalid xfer_cnt %d. Max is 16 bytes\n",
3094 					xfer_cnt);
3095 		return -EINVAL;
3096 	}
3097 	bnx2x_bsc_module_sel(params);
3098 
3099 	xfer_cnt = 16 - lc_addr;
3100 
3101 	/* Enable the engine */
3102 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3103 	val |= MCPR_IMC_COMMAND_ENABLE;
3104 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3105 
3106 	/* Program slave device ID */
3107 	val = (sl_devid << 16) | sl_addr;
3108 	REG_WR(bp, MCP_REG_MCPR_IMC_SLAVE_CONTROL, val);
3109 
3110 	/* Start xfer with 0 byte to update the address pointer ???*/
3111 	val = (MCPR_IMC_COMMAND_ENABLE) |
3112 	      (MCPR_IMC_COMMAND_WRITE_OP <<
3113 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3114 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) | (0);
3115 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3116 
3117 	/* Poll for completion */
3118 	t0 = ktime_get_ns();
3119 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3120 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3121 		delta = ktime_get_ns() - t0;
3122 		if (delta > 10 * NSEC_PER_MSEC) {
3123 			DP(NETIF_MSG_LINK, "wr 0 byte timed out after %Lu ns\n",
3124 					   delta);
3125 			rc = -EFAULT;
3126 			break;
3127 		}
3128 		usleep_range(10, 20);
3129 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3130 	}
3131 	if (rc == -EFAULT)
3132 		return rc;
3133 
3134 	/* Start xfer with read op */
3135 	val = (MCPR_IMC_COMMAND_ENABLE) |
3136 		(MCPR_IMC_COMMAND_READ_OP <<
3137 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3138 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) |
3139 		  (xfer_cnt);
3140 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3141 
3142 	/* Poll for completion */
3143 	t0 = ktime_get_ns();
3144 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3145 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3146 		delta = ktime_get_ns() - t0;
3147 		if (delta > 10 * NSEC_PER_MSEC) {
3148 			DP(NETIF_MSG_LINK, "rd op timed out after %Lu ns\n",
3149 					   delta);
3150 			rc = -EFAULT;
3151 			break;
3152 		}
3153 		usleep_range(10, 20);
3154 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3155 	}
3156 	if (rc == -EFAULT)
3157 		return rc;
3158 
3159 	for (i = (lc_addr >> 2); i < 4; i++) {
3160 		data_array[i] = REG_RD(bp, (MCP_REG_MCPR_IMC_DATAREG0 + i*4));
3161 #ifdef __BIG_ENDIAN
3162 		data_array[i] = ((data_array[i] & 0x000000ff) << 24) |
3163 				((data_array[i] & 0x0000ff00) << 8) |
3164 				((data_array[i] & 0x00ff0000) >> 8) |
3165 				((data_array[i] & 0xff000000) >> 24);
3166 #endif
3167 	}
3168 	return rc;
3169 }
3170 
bnx2x_cl45_read_or_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 or_val)3171 static void bnx2x_cl45_read_or_write(struct bnx2x *bp, struct bnx2x_phy *phy,
3172 				     u8 devad, u16 reg, u16 or_val)
3173 {
3174 	u16 val;
3175 	bnx2x_cl45_read(bp, phy, devad, reg, &val);
3176 	bnx2x_cl45_write(bp, phy, devad, reg, val | or_val);
3177 }
3178 
bnx2x_cl45_read_and_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 and_val)3179 static void bnx2x_cl45_read_and_write(struct bnx2x *bp,
3180 				      struct bnx2x_phy *phy,
3181 				      u8 devad, u16 reg, u16 and_val)
3182 {
3183 	u16 val;
3184 	bnx2x_cl45_read(bp, phy, devad, reg, &val);
3185 	bnx2x_cl45_write(bp, phy, devad, reg, val & and_val);
3186 }
3187 
bnx2x_phy_read(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 * ret_val)3188 int bnx2x_phy_read(struct link_params *params, u8 phy_addr,
3189 		   u8 devad, u16 reg, u16 *ret_val)
3190 {
3191 	u8 phy_index;
3192 	/* Probe for the phy according to the given phy_addr, and execute
3193 	 * the read request on it
3194 	 */
3195 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3196 		if (params->phy[phy_index].addr == phy_addr) {
3197 			return bnx2x_cl45_read(params->bp,
3198 					       &params->phy[phy_index], devad,
3199 					       reg, ret_val);
3200 		}
3201 	}
3202 	return -EINVAL;
3203 }
3204 
bnx2x_phy_write(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 val)3205 int bnx2x_phy_write(struct link_params *params, u8 phy_addr,
3206 		    u8 devad, u16 reg, u16 val)
3207 {
3208 	u8 phy_index;
3209 	/* Probe for the phy according to the given phy_addr, and execute
3210 	 * the write request on it
3211 	 */
3212 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3213 		if (params->phy[phy_index].addr == phy_addr) {
3214 			return bnx2x_cl45_write(params->bp,
3215 						&params->phy[phy_index], devad,
3216 						reg, val);
3217 		}
3218 	}
3219 	return -EINVAL;
3220 }
bnx2x_get_warpcore_lane(struct bnx2x_phy * phy,struct link_params * params)3221 static u8 bnx2x_get_warpcore_lane(struct bnx2x_phy *phy,
3222 				  struct link_params *params)
3223 {
3224 	u8 lane = 0;
3225 	struct bnx2x *bp = params->bp;
3226 	u32 path_swap, path_swap_ovr;
3227 	u8 path, port;
3228 
3229 	path = BP_PATH(bp);
3230 	port = params->port;
3231 
3232 	if (bnx2x_is_4_port_mode(bp)) {
3233 		u32 port_swap, port_swap_ovr;
3234 
3235 		/* Figure out path swap value */
3236 		path_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP_OVWR);
3237 		if (path_swap_ovr & 0x1)
3238 			path_swap = (path_swap_ovr & 0x2);
3239 		else
3240 			path_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP);
3241 
3242 		if (path_swap)
3243 			path = path ^ 1;
3244 
3245 		/* Figure out port swap value */
3246 		port_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP_OVWR);
3247 		if (port_swap_ovr & 0x1)
3248 			port_swap = (port_swap_ovr & 0x2);
3249 		else
3250 			port_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP);
3251 
3252 		if (port_swap)
3253 			port = port ^ 1;
3254 
3255 		lane = (port<<1) + path;
3256 	} else { /* Two port mode - no port swap */
3257 
3258 		/* Figure out path swap value */
3259 		path_swap_ovr =
3260 			REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP_OVWR);
3261 		if (path_swap_ovr & 0x1) {
3262 			path_swap = (path_swap_ovr & 0x2);
3263 		} else {
3264 			path_swap =
3265 				REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP);
3266 		}
3267 		if (path_swap)
3268 			path = path ^ 1;
3269 
3270 		lane = path << 1 ;
3271 	}
3272 	return lane;
3273 }
3274 
bnx2x_set_aer_mmd(struct link_params * params,struct bnx2x_phy * phy)3275 static void bnx2x_set_aer_mmd(struct link_params *params,
3276 			      struct bnx2x_phy *phy)
3277 {
3278 	u32 ser_lane;
3279 	u16 offset, aer_val;
3280 	struct bnx2x *bp = params->bp;
3281 	ser_lane = ((params->lane_config &
3282 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
3283 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
3284 
3285 	offset = (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) ?
3286 		(phy->addr + ser_lane) : 0;
3287 
3288 	if (USES_WARPCORE(bp)) {
3289 		aer_val = bnx2x_get_warpcore_lane(phy, params);
3290 		/* In Dual-lane mode, two lanes are joined together,
3291 		 * so in order to configure them, the AER broadcast method is
3292 		 * used here.
3293 		 * 0x200 is the broadcast address for lanes 0,1
3294 		 * 0x201 is the broadcast address for lanes 2,3
3295 		 */
3296 		if (phy->flags & FLAGS_WC_DUAL_MODE)
3297 			aer_val = (aer_val >> 1) | 0x200;
3298 	} else if (CHIP_IS_E2(bp))
3299 		aer_val = 0x3800 + offset - 1;
3300 	else
3301 		aer_val = 0x3800 + offset;
3302 
3303 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3304 			  MDIO_AER_BLOCK_AER_REG, aer_val);
3305 
3306 }
3307 
3308 /******************************************************************/
3309 /*			Internal phy section			  */
3310 /******************************************************************/
3311 
bnx2x_set_serdes_access(struct bnx2x * bp,u8 port)3312 static void bnx2x_set_serdes_access(struct bnx2x *bp, u8 port)
3313 {
3314 	u32 emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
3315 
3316 	/* Set Clause 22 */
3317 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 1);
3318 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245f8000);
3319 	udelay(500);
3320 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245d000f);
3321 	udelay(500);
3322 	 /* Set Clause 45 */
3323 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 0);
3324 }
3325 
bnx2x_serdes_deassert(struct bnx2x * bp,u8 port)3326 static void bnx2x_serdes_deassert(struct bnx2x *bp, u8 port)
3327 {
3328 	u32 val;
3329 
3330 	DP(NETIF_MSG_LINK, "bnx2x_serdes_deassert\n");
3331 
3332 	val = SERDES_RESET_BITS << (port*16);
3333 
3334 	/* Reset and unreset the SerDes/XGXS */
3335 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3336 	udelay(500);
3337 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3338 
3339 	bnx2x_set_serdes_access(bp, port);
3340 
3341 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_DEVAD + port*0x10,
3342 	       DEFAULT_PHY_DEV_ADDR);
3343 }
3344 
bnx2x_xgxs_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)3345 static void bnx2x_xgxs_specific_func(struct bnx2x_phy *phy,
3346 				     struct link_params *params,
3347 				     u32 action)
3348 {
3349 	struct bnx2x *bp = params->bp;
3350 	switch (action) {
3351 	case PHY_INIT:
3352 		/* Set correct devad */
3353 		REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_ST + params->port*0x18, 0);
3354 		REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + params->port*0x18,
3355 		       phy->def_md_devad);
3356 		break;
3357 	}
3358 }
3359 
bnx2x_xgxs_deassert(struct link_params * params)3360 static void bnx2x_xgxs_deassert(struct link_params *params)
3361 {
3362 	struct bnx2x *bp = params->bp;
3363 	u8 port;
3364 	u32 val;
3365 	DP(NETIF_MSG_LINK, "bnx2x_xgxs_deassert\n");
3366 	port = params->port;
3367 
3368 	val = XGXS_RESET_BITS << (port*16);
3369 
3370 	/* Reset and unreset the SerDes/XGXS */
3371 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3372 	udelay(500);
3373 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3374 	bnx2x_xgxs_specific_func(&params->phy[INT_PHY], params,
3375 				 PHY_INIT);
3376 }
3377 
bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy * phy,struct link_params * params,u16 * ieee_fc)3378 static void bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy *phy,
3379 				     struct link_params *params, u16 *ieee_fc)
3380 {
3381 	struct bnx2x *bp = params->bp;
3382 	*ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
3383 	/* Resolve pause mode and advertisement Please refer to Table
3384 	 * 28B-3 of the 802.3ab-1999 spec
3385 	 */
3386 
3387 	switch (phy->req_flow_ctrl) {
3388 	case BNX2X_FLOW_CTRL_AUTO:
3389 		switch (params->req_fc_auto_adv) {
3390 		case BNX2X_FLOW_CTRL_BOTH:
3391 		case BNX2X_FLOW_CTRL_RX:
3392 			*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3393 			break;
3394 		case BNX2X_FLOW_CTRL_TX:
3395 			*ieee_fc |=
3396 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3397 			break;
3398 		default:
3399 			break;
3400 		}
3401 		break;
3402 	case BNX2X_FLOW_CTRL_TX:
3403 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3404 		break;
3405 
3406 	case BNX2X_FLOW_CTRL_RX:
3407 	case BNX2X_FLOW_CTRL_BOTH:
3408 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3409 		break;
3410 
3411 	case BNX2X_FLOW_CTRL_NONE:
3412 	default:
3413 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
3414 		break;
3415 	}
3416 	DP(NETIF_MSG_LINK, "ieee_fc = 0x%x\n", *ieee_fc);
3417 }
3418 
set_phy_vars(struct link_params * params,struct link_vars * vars)3419 static void set_phy_vars(struct link_params *params,
3420 			 struct link_vars *vars)
3421 {
3422 	struct bnx2x *bp = params->bp;
3423 	u8 actual_phy_idx, phy_index, link_cfg_idx;
3424 	u8 phy_config_swapped = params->multi_phy_config &
3425 			PORT_HW_CFG_PHY_SWAPPED_ENABLED;
3426 	for (phy_index = INT_PHY; phy_index < params->num_phys;
3427 	      phy_index++) {
3428 		link_cfg_idx = LINK_CONFIG_IDX(phy_index);
3429 		actual_phy_idx = phy_index;
3430 		if (phy_config_swapped) {
3431 			if (phy_index == EXT_PHY1)
3432 				actual_phy_idx = EXT_PHY2;
3433 			else if (phy_index == EXT_PHY2)
3434 				actual_phy_idx = EXT_PHY1;
3435 		}
3436 		params->phy[actual_phy_idx].req_flow_ctrl =
3437 			params->req_flow_ctrl[link_cfg_idx];
3438 
3439 		params->phy[actual_phy_idx].req_line_speed =
3440 			params->req_line_speed[link_cfg_idx];
3441 
3442 		params->phy[actual_phy_idx].speed_cap_mask =
3443 			params->speed_cap_mask[link_cfg_idx];
3444 
3445 		params->phy[actual_phy_idx].req_duplex =
3446 			params->req_duplex[link_cfg_idx];
3447 
3448 		if (params->req_line_speed[link_cfg_idx] ==
3449 		    SPEED_AUTO_NEG)
3450 			vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
3451 
3452 		DP(NETIF_MSG_LINK, "req_flow_ctrl %x, req_line_speed %x,"
3453 			   " speed_cap_mask %x\n",
3454 			   params->phy[actual_phy_idx].req_flow_ctrl,
3455 			   params->phy[actual_phy_idx].req_line_speed,
3456 			   params->phy[actual_phy_idx].speed_cap_mask);
3457 	}
3458 }
3459 
bnx2x_ext_phy_set_pause(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)3460 static void bnx2x_ext_phy_set_pause(struct link_params *params,
3461 				    struct bnx2x_phy *phy,
3462 				    struct link_vars *vars)
3463 {
3464 	u16 val;
3465 	struct bnx2x *bp = params->bp;
3466 	/* Read modify write pause advertizing */
3467 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, &val);
3468 
3469 	val &= ~MDIO_AN_REG_ADV_PAUSE_BOTH;
3470 
3471 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
3472 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
3473 	if ((vars->ieee_fc &
3474 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
3475 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
3476 		val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
3477 	}
3478 	if ((vars->ieee_fc &
3479 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
3480 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
3481 		val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
3482 	}
3483 	DP(NETIF_MSG_LINK, "Ext phy AN advertize 0x%x\n", val);
3484 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, val);
3485 }
3486 
bnx2x_pause_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 pause_result)3487 static void bnx2x_pause_resolve(struct bnx2x_phy *phy,
3488 				struct link_params *params,
3489 				struct link_vars *vars,
3490 				u32 pause_result)
3491 {
3492 	struct bnx2x *bp = params->bp;
3493 						/*  LD	    LP	 */
3494 	switch (pause_result) {			/* ASYM P ASYM P */
3495 	case 0xb:				/*   1  0   1  1 */
3496 		DP(NETIF_MSG_LINK, "Flow Control: TX only\n");
3497 		vars->flow_ctrl = BNX2X_FLOW_CTRL_TX;
3498 		break;
3499 
3500 	case 0xe:				/*   1  1   1  0 */
3501 		DP(NETIF_MSG_LINK, "Flow Control: RX only\n");
3502 		vars->flow_ctrl = BNX2X_FLOW_CTRL_RX;
3503 		break;
3504 
3505 	case 0x5:				/*   0  1   0  1 */
3506 	case 0x7:				/*   0  1   1  1 */
3507 	case 0xd:				/*   1  1   0  1 */
3508 	case 0xf:				/*   1  1   1  1 */
3509 		/* If the user selected to advertise RX ONLY,
3510 		 * although we advertised both, need to enable
3511 		 * RX only.
3512 		 */
3513 		if (params->req_fc_auto_adv == BNX2X_FLOW_CTRL_BOTH) {
3514 			DP(NETIF_MSG_LINK, "Flow Control: RX & TX\n");
3515 			vars->flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
3516 		} else {
3517 			DP(NETIF_MSG_LINK, "Flow Control: RX only\n");
3518 			vars->flow_ctrl = BNX2X_FLOW_CTRL_RX;
3519 		}
3520 		break;
3521 
3522 	default:
3523 		DP(NETIF_MSG_LINK, "Flow Control: None\n");
3524 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
3525 		break;
3526 	}
3527 	if (pause_result & (1<<0))
3528 		vars->link_status |= LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE;
3529 	if (pause_result & (1<<1))
3530 		vars->link_status |= LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE;
3531 
3532 }
3533 
bnx2x_ext_phy_update_adv_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3534 static void bnx2x_ext_phy_update_adv_fc(struct bnx2x_phy *phy,
3535 					struct link_params *params,
3536 					struct link_vars *vars)
3537 {
3538 	u16 ld_pause;		/* local */
3539 	u16 lp_pause;		/* link partner */
3540 	u16 pause_result;
3541 	struct bnx2x *bp = params->bp;
3542 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) {
3543 		bnx2x_cl22_read(bp, phy, 0x4, &ld_pause);
3544 		bnx2x_cl22_read(bp, phy, 0x5, &lp_pause);
3545 	} else if (CHIP_IS_E3(bp) &&
3546 		SINGLE_MEDIA_DIRECT(params)) {
3547 		u8 lane = bnx2x_get_warpcore_lane(phy, params);
3548 		u16 gp_status, gp_mask;
3549 		bnx2x_cl45_read(bp, phy,
3550 				MDIO_AN_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_4,
3551 				&gp_status);
3552 		gp_mask = (MDIO_WC_REG_GP2_STATUS_GP_2_4_CL73_AN_CMPL |
3553 			   MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_LP_AN_CAP) <<
3554 			lane;
3555 		if ((gp_status & gp_mask) == gp_mask) {
3556 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3557 					MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3558 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3559 					MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3560 		} else {
3561 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3562 					MDIO_AN_REG_CL37_FC_LD, &ld_pause);
3563 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3564 					MDIO_AN_REG_CL37_FC_LP, &lp_pause);
3565 			ld_pause = ((ld_pause &
3566 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3567 				    << 3);
3568 			lp_pause = ((lp_pause &
3569 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3570 				    << 3);
3571 		}
3572 	} else {
3573 		bnx2x_cl45_read(bp, phy,
3574 				MDIO_AN_DEVAD,
3575 				MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3576 		bnx2x_cl45_read(bp, phy,
3577 				MDIO_AN_DEVAD,
3578 				MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3579 	}
3580 	pause_result = (ld_pause &
3581 			MDIO_AN_REG_ADV_PAUSE_MASK) >> 8;
3582 	pause_result |= (lp_pause &
3583 			 MDIO_AN_REG_ADV_PAUSE_MASK) >> 10;
3584 	DP(NETIF_MSG_LINK, "Ext PHY pause result 0x%x\n", pause_result);
3585 	bnx2x_pause_resolve(phy, params, vars, pause_result);
3586 
3587 }
3588 
bnx2x_ext_phy_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3589 static u8 bnx2x_ext_phy_resolve_fc(struct bnx2x_phy *phy,
3590 				   struct link_params *params,
3591 				   struct link_vars *vars)
3592 {
3593 	u8 ret = 0;
3594 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
3595 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO) {
3596 		/* Update the advertised flow-controled of LD/LP in AN */
3597 		if (phy->req_line_speed == SPEED_AUTO_NEG)
3598 			bnx2x_ext_phy_update_adv_fc(phy, params, vars);
3599 		/* But set the flow-control result as the requested one */
3600 		vars->flow_ctrl = phy->req_flow_ctrl;
3601 	} else if (phy->req_line_speed != SPEED_AUTO_NEG)
3602 		vars->flow_ctrl = params->req_fc_auto_adv;
3603 	else if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
3604 		ret = 1;
3605 		bnx2x_ext_phy_update_adv_fc(phy, params, vars);
3606 	}
3607 	return ret;
3608 }
3609 /******************************************************************/
3610 /*			Warpcore section			  */
3611 /******************************************************************/
3612 /* The init_internal_warpcore should mirror the xgxs,
3613  * i.e. reset the lane (if needed), set aer for the
3614  * init configuration, and set/clear SGMII flag. Internal
3615  * phy init is done purely in phy_init stage.
3616  */
3617 #define WC_TX_DRIVER(post2, idriver, ipre, ifir) \
3618 	((post2 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) | \
3619 	 (idriver << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) | \
3620 	 (ipre << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET) | \
3621 	 (ifir << MDIO_WC_REG_TX0_TX_DRIVER_IFIR_OFFSET))
3622 
3623 #define WC_TX_FIR(post, main, pre) \
3624 	((post << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) | \
3625 	 (main << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) | \
3626 	 (pre << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET))
3627 
bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3628 static void bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy *phy,
3629 					 struct link_params *params,
3630 					 struct link_vars *vars)
3631 {
3632 	struct bnx2x *bp = params->bp;
3633 	u16 i;
3634 	static struct bnx2x_reg_set reg_set[] = {
3635 		/* Step 1 - Program the TX/RX alignment markers */
3636 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0xa157},
3637 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xcbe2},
3638 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0x7537},
3639 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0xa157},
3640 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xcbe2},
3641 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0x7537},
3642 		/* Step 2 - Configure the NP registers */
3643 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000a},
3644 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6400},
3645 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0620},
3646 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0157},
3647 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x6464},
3648 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x3150},
3649 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x3150},
3650 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0157},
3651 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0620}
3652 	};
3653 	DP(NETIF_MSG_LINK, "Enabling 20G-KR2\n");
3654 
3655 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3656 				 MDIO_WC_REG_CL49_USERB0_CTRL, (3<<6));
3657 
3658 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3659 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3660 				 reg_set[i].val);
3661 
3662 	/* Start KR2 work-around timer which handles BCM8073 link-parner */
3663 	params->link_attr_sync |= LINK_ATTR_SYNC_KR2_ENABLE;
3664 	bnx2x_update_link_attr(params, params->link_attr_sync);
3665 }
3666 
bnx2x_disable_kr2(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)3667 static void bnx2x_disable_kr2(struct link_params *params,
3668 			      struct link_vars *vars,
3669 			      struct bnx2x_phy *phy)
3670 {
3671 	struct bnx2x *bp = params->bp;
3672 	int i;
3673 	static struct bnx2x_reg_set reg_set[] = {
3674 		/* Step 1 - Program the TX/RX alignment markers */
3675 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
3676 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
3677 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
3678 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
3679 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
3680 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
3681 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
3682 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
3683 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
3684 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
3685 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
3686 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
3687 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
3688 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
3689 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
3690 	};
3691 	DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
3692 
3693 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3694 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3695 				 reg_set[i].val);
3696 	params->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
3697 	bnx2x_update_link_attr(params, params->link_attr_sync);
3698 
3699 	vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
3700 }
3701 
bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy * phy,struct link_params * params)3702 static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
3703 					       struct link_params *params)
3704 {
3705 	struct bnx2x *bp = params->bp;
3706 
3707 	DP(NETIF_MSG_LINK, "Configure WC for LPI pass through\n");
3708 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3709 			 MDIO_WC_REG_EEE_COMBO_CONTROL0, 0x7c);
3710 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3711 				 MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
3712 }
3713 
bnx2x_warpcore_restart_AN_KR(struct bnx2x_phy * phy,struct link_params * params)3714 static void bnx2x_warpcore_restart_AN_KR(struct bnx2x_phy *phy,
3715 					 struct link_params *params)
3716 {
3717 	/* Restart autoneg on the leading lane only */
3718 	struct bnx2x *bp = params->bp;
3719 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
3720 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3721 			  MDIO_AER_BLOCK_AER_REG, lane);
3722 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3723 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
3724 
3725 	/* Restore AER */
3726 	bnx2x_set_aer_mmd(params, phy);
3727 }
3728 
bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3729 static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
3730 					struct link_params *params,
3731 					struct link_vars *vars) {
3732 	u16 lane, i, cl72_ctrl, an_adv = 0, val;
3733 	u32 wc_lane_config;
3734 	struct bnx2x *bp = params->bp;
3735 	static struct bnx2x_reg_set reg_set[] = {
3736 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
3737 		{MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0},
3738 		{MDIO_WC_DEVAD, MDIO_WC_REG_RX66_CONTROL, 0x7415},
3739 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x6190},
3740 		/* Disable Autoneg: re-enable it after adv is done. */
3741 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0},
3742 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2},
3743 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0},
3744 	};
3745 	DP(NETIF_MSG_LINK, "Enable Auto Negotiation for KR\n");
3746 	/* Set to default registers that may be overriden by 10G force */
3747 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3748 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3749 				 reg_set[i].val);
3750 
3751 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3752 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &cl72_ctrl);
3753 	cl72_ctrl &= 0x08ff;
3754 	cl72_ctrl |= 0x3800;
3755 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3756 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, cl72_ctrl);
3757 
3758 	/* Check adding advertisement for 1G KX */
3759 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3760 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
3761 	    (vars->line_speed == SPEED_1000)) {
3762 		u16 addr = MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2;
3763 		an_adv |= (1<<5);
3764 
3765 		/* Enable CL37 1G Parallel Detect */
3766 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD, addr, 0x1);
3767 		DP(NETIF_MSG_LINK, "Advertize 1G\n");
3768 	}
3769 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3770 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
3771 	    (vars->line_speed ==  SPEED_10000)) {
3772 		/* Check adding advertisement for 10G KR */
3773 		an_adv |= (1<<7);
3774 		/* Enable 10G Parallel Detect */
3775 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3776 				  MDIO_AER_BLOCK_AER_REG, 0);
3777 
3778 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3779 				 MDIO_WC_REG_PAR_DET_10G_CTRL, 1);
3780 		bnx2x_set_aer_mmd(params, phy);
3781 		DP(NETIF_MSG_LINK, "Advertize 10G\n");
3782 	}
3783 
3784 	/* Set Transmit PMD settings */
3785 	lane = bnx2x_get_warpcore_lane(phy, params);
3786 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3787 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
3788 			 WC_TX_DRIVER(0x02, 0x06, 0x09, 0));
3789 	/* Configure the next lane if dual mode */
3790 	if (phy->flags & FLAGS_WC_DUAL_MODE)
3791 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3792 				 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*(lane+1),
3793 				 WC_TX_DRIVER(0x02, 0x06, 0x09, 0));
3794 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3795 			 MDIO_WC_REG_CL72_USERB0_CL72_OS_DEF_CTRL,
3796 			 0x03f0);
3797 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3798 			 MDIO_WC_REG_CL72_USERB0_CL72_2P5_DEF_CTRL,
3799 			 0x03f0);
3800 
3801 	/* Advertised speeds */
3802 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3803 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, an_adv);
3804 
3805 	/* Advertised and set FEC (Forward Error Correction) */
3806 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3807 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT2,
3808 			 (MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_ABILITY |
3809 			  MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_REQ));
3810 
3811 	/* Enable CL37 BAM */
3812 	if (REG_RD(bp, params->shmem_base +
3813 		   offsetof(struct shmem_region, dev_info.
3814 			    port_hw_config[params->port].default_cfg)) &
3815 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
3816 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3817 					 MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL,
3818 					 1);
3819 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
3820 	}
3821 
3822 	/* Advertise pause */
3823 	bnx2x_ext_phy_set_pause(params, phy, vars);
3824 	vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
3825 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3826 				 MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
3827 
3828 	/* Over 1G - AN local device user page 1 */
3829 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3830 			MDIO_WC_REG_DIGITAL3_UP1, 0x1f);
3831 
3832 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
3833 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)) ||
3834 	    (phy->req_line_speed == SPEED_20000)) {
3835 
3836 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3837 				  MDIO_AER_BLOCK_AER_REG, lane);
3838 
3839 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3840 					 MDIO_WC_REG_RX1_PCI_CTRL + (0x10*lane),
3841 					 (1<<11));
3842 
3843 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3844 				 MDIO_WC_REG_XGXS_X2_CONTROL3, 0x7);
3845 		bnx2x_set_aer_mmd(params, phy);
3846 
3847 		bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
3848 	} else {
3849 		/* Enable Auto-Detect to support 1G over CL37 as well */
3850 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3851 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0x10);
3852 		wc_lane_config = REG_RD(bp, params->shmem_base +
3853 					offsetof(struct shmem_region, dev_info.
3854 					shared_hw_config.wc_lane_config));
3855 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3856 				MDIO_WC_REG_RX0_PCI_CTRL + (lane << 4), &val);
3857 		/* Force cl48 sync_status LOW to avoid getting stuck in CL73
3858 		 * parallel-detect loop when CL73 and CL37 are enabled.
3859 		 */
3860 		val |= 1 << 11;
3861 
3862 		/* Restore Polarity settings in case it was run over by
3863 		 * previous link owner
3864 		 */
3865 		if (wc_lane_config &
3866 		    (SHARED_HW_CFG_RX_LANE0_POL_FLIP_ENABLED << lane))
3867 			val |= 3 << 2;
3868 		else
3869 			val &= ~(3 << 2);
3870 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3871 				 MDIO_WC_REG_RX0_PCI_CTRL + (lane << 4),
3872 				 val);
3873 
3874 		bnx2x_disable_kr2(params, vars, phy);
3875 	}
3876 
3877 	/* Enable Autoneg: only on the main lane */
3878 	bnx2x_warpcore_restart_AN_KR(phy, params);
3879 }
3880 
bnx2x_warpcore_set_10G_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3881 static void bnx2x_warpcore_set_10G_KR(struct bnx2x_phy *phy,
3882 				      struct link_params *params,
3883 				      struct link_vars *vars)
3884 {
3885 	struct bnx2x *bp = params->bp;
3886 	u16 val16, i, lane;
3887 	static struct bnx2x_reg_set reg_set[] = {
3888 		/* Disable Autoneg */
3889 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
3890 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL,
3891 			0x3f00},
3892 		{MDIO_AN_DEVAD, MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, 0},
3893 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0},
3894 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL3_UP1, 0x1},
3895 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL5_MISC7, 0xa},
3896 		/* Leave cl72 training enable, needed for KR */
3897 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2}
3898 	};
3899 
3900 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3901 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3902 				 reg_set[i].val);
3903 
3904 	lane = bnx2x_get_warpcore_lane(phy, params);
3905 	/* Global registers */
3906 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3907 			  MDIO_AER_BLOCK_AER_REG, 0);
3908 	/* Disable CL36 PCS Tx */
3909 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3910 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
3911 	val16 &= ~(0x0011 << lane);
3912 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3913 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
3914 
3915 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3916 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
3917 	val16 |= (0x0303 << (lane << 1));
3918 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3919 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
3920 	/* Restore AER */
3921 	bnx2x_set_aer_mmd(params, phy);
3922 	/* Set speed via PMA/PMD register */
3923 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3924 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040);
3925 
3926 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3927 			 MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0xB);
3928 
3929 	/* Enable encoded forced speed */
3930 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3931 			 MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x30);
3932 
3933 	/* Turn TX scramble payload only the 64/66 scrambler */
3934 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3935 			 MDIO_WC_REG_TX66_CONTROL, 0x9);
3936 
3937 	/* Turn RX scramble payload only the 64/66 scrambler */
3938 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3939 				 MDIO_WC_REG_RX66_CONTROL, 0xF9);
3940 
3941 	/* Set and clear loopback to cause a reset to 64/66 decoder */
3942 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3943 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x4000);
3944 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3945 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0);
3946 
3947 }
3948 
bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy * phy,struct link_params * params,u8 is_xfi)3949 static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy,
3950 				       struct link_params *params,
3951 				       u8 is_xfi)
3952 {
3953 	struct bnx2x *bp = params->bp;
3954 	u16 misc1_val, tap_val, tx_driver_val, lane, val;
3955 	u32 cfg_tap_val, tx_drv_brdct, tx_equal;
3956 	u32 ifir_val, ipost2_val, ipre_driver_val;
3957 
3958 	/* Hold rxSeqStart */
3959 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3960 				 MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x8000);
3961 
3962 	/* Hold tx_fifo_reset */
3963 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3964 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, 0x1);
3965 
3966 	/* Disable CL73 AN */
3967 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0);
3968 
3969 	/* Disable 100FX Enable and Auto-Detect */
3970 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3971 				  MDIO_WC_REG_FX100_CTRL1, 0xFFFA);
3972 
3973 	/* Disable 100FX Idle detect */
3974 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3975 				 MDIO_WC_REG_FX100_CTRL3, 0x0080);
3976 
3977 	/* Set Block address to Remote PHY & Clear forced_speed[5] */
3978 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3979 				  MDIO_WC_REG_DIGITAL4_MISC3, 0xFF7F);
3980 
3981 	/* Turn off auto-detect & fiber mode */
3982 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3983 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
3984 				  0xFFEE);
3985 
3986 	/* Set filter_force_link, disable_false_link and parallel_detect */
3987 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3988 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &val);
3989 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3990 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
3991 			 ((val | 0x0006) & 0xFFFE));
3992 
3993 	/* Set XFI / SFI */
3994 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3995 			MDIO_WC_REG_SERDESDIGITAL_MISC1, &misc1_val);
3996 
3997 	misc1_val &= ~(0x1f);
3998 
3999 	if (is_xfi) {
4000 		misc1_val |= 0x5;
4001 		tap_val = WC_TX_FIR(0x08, 0x37, 0x00);
4002 		tx_driver_val = WC_TX_DRIVER(0x00, 0x02, 0x03, 0);
4003 	} else {
4004 		cfg_tap_val = REG_RD(bp, params->shmem_base +
4005 				     offsetof(struct shmem_region, dev_info.
4006 					      port_hw_config[params->port].
4007 					      sfi_tap_values));
4008 
4009 		tx_equal = cfg_tap_val & PORT_HW_CFG_TX_EQUALIZATION_MASK;
4010 
4011 		misc1_val |= 0x9;
4012 
4013 		/* TAP values are controlled by nvram, if value there isn't 0 */
4014 		if (tx_equal)
4015 			tap_val = (u16)tx_equal;
4016 		else
4017 			tap_val = WC_TX_FIR(0x0f, 0x2b, 0x02);
4018 
4019 		ifir_val = DEFAULT_TX_DRV_IFIR;
4020 		ipost2_val = DEFAULT_TX_DRV_POST2;
4021 		ipre_driver_val = DEFAULT_TX_DRV_IPRE_DRIVER;
4022 		tx_drv_brdct = DEFAULT_TX_DRV_BRDCT;
4023 
4024 		/* If any of the IFIR/IPRE_DRIVER/POST@ is set, apply all
4025 		 * configuration.
4026 		 */
4027 		if (cfg_tap_val & (PORT_HW_CFG_TX_DRV_IFIR_MASK |
4028 				   PORT_HW_CFG_TX_DRV_IPREDRIVER_MASK |
4029 				   PORT_HW_CFG_TX_DRV_POST2_MASK)) {
4030 			ifir_val = (cfg_tap_val &
4031 				    PORT_HW_CFG_TX_DRV_IFIR_MASK) >>
4032 				PORT_HW_CFG_TX_DRV_IFIR_SHIFT;
4033 			ipre_driver_val = (cfg_tap_val &
4034 					   PORT_HW_CFG_TX_DRV_IPREDRIVER_MASK)
4035 			>> PORT_HW_CFG_TX_DRV_IPREDRIVER_SHIFT;
4036 			ipost2_val = (cfg_tap_val &
4037 				      PORT_HW_CFG_TX_DRV_POST2_MASK) >>
4038 				PORT_HW_CFG_TX_DRV_POST2_SHIFT;
4039 		}
4040 
4041 		if (cfg_tap_val & PORT_HW_CFG_TX_DRV_BROADCAST_MASK) {
4042 			tx_drv_brdct = (cfg_tap_val &
4043 					PORT_HW_CFG_TX_DRV_BROADCAST_MASK) >>
4044 				PORT_HW_CFG_TX_DRV_BROADCAST_SHIFT;
4045 		}
4046 
4047 		tx_driver_val = WC_TX_DRIVER(ipost2_val, tx_drv_brdct,
4048 					     ipre_driver_val, ifir_val);
4049 	}
4050 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4051 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val);
4052 
4053 	/* Set Transmit PMD settings */
4054 	lane = bnx2x_get_warpcore_lane(phy, params);
4055 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4056 			 MDIO_WC_REG_TX_FIR_TAP,
4057 			 tap_val | MDIO_WC_REG_TX_FIR_TAP_ENABLE);
4058 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4059 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4060 			 tx_driver_val);
4061 
4062 	/* Enable fiber mode, enable and invert sig_det */
4063 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4064 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0xd);
4065 
4066 	/* Set Block address to Remote PHY & Set forced_speed[5], 40bit mode */
4067 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4068 				 MDIO_WC_REG_DIGITAL4_MISC3, 0x8080);
4069 
4070 	bnx2x_warpcore_set_lpi_passthrough(phy, params);
4071 
4072 	/* 10G XFI Full Duplex */
4073 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4074 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x100);
4075 
4076 	/* Release tx_fifo_reset */
4077 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4078 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4079 				  0xFFFE);
4080 	/* Release rxSeqStart */
4081 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4082 				  MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x7FFF);
4083 }
4084 
bnx2x_warpcore_set_20G_force_KR2(struct bnx2x_phy * phy,struct link_params * params)4085 static void bnx2x_warpcore_set_20G_force_KR2(struct bnx2x_phy *phy,
4086 					     struct link_params *params)
4087 {
4088 	u16 val;
4089 	struct bnx2x *bp = params->bp;
4090 	/* Set global registers, so set AER lane to 0 */
4091 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4092 			  MDIO_AER_BLOCK_AER_REG, 0);
4093 
4094 	/* Disable sequencer */
4095 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4096 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, ~(1<<13));
4097 
4098 	bnx2x_set_aer_mmd(params, phy);
4099 
4100 	bnx2x_cl45_read_and_write(bp, phy, MDIO_PMA_DEVAD,
4101 				  MDIO_WC_REG_PMD_KR_CONTROL, ~(1<<1));
4102 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
4103 			 MDIO_AN_REG_CTRL, 0);
4104 	/* Turn off CL73 */
4105 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4106 			MDIO_WC_REG_CL73_USERB0_CTRL, &val);
4107 	val &= ~(1<<5);
4108 	val |= (1<<6);
4109 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4110 			 MDIO_WC_REG_CL73_USERB0_CTRL, val);
4111 
4112 	/* Set 20G KR2 force speed */
4113 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4114 				 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x1f);
4115 
4116 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4117 				 MDIO_WC_REG_DIGITAL4_MISC3, (1<<7));
4118 
4119 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4120 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &val);
4121 	val &= ~(3<<14);
4122 	val |= (1<<15);
4123 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4124 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, val);
4125 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4126 			 MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0x835A);
4127 
4128 	/* Enable sequencer (over lane 0) */
4129 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4130 			  MDIO_AER_BLOCK_AER_REG, 0);
4131 
4132 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4133 				 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, (1<<13));
4134 
4135 	bnx2x_set_aer_mmd(params, phy);
4136 }
4137 
bnx2x_warpcore_set_20G_DXGXS(struct bnx2x * bp,struct bnx2x_phy * phy,u16 lane)4138 static void bnx2x_warpcore_set_20G_DXGXS(struct bnx2x *bp,
4139 					 struct bnx2x_phy *phy,
4140 					 u16 lane)
4141 {
4142 	/* Rx0 anaRxControl1G */
4143 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4144 			 MDIO_WC_REG_RX0_ANARXCONTROL1G, 0x90);
4145 
4146 	/* Rx2 anaRxControl1G */
4147 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4148 			 MDIO_WC_REG_RX2_ANARXCONTROL1G, 0x90);
4149 
4150 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4151 			 MDIO_WC_REG_RX66_SCW0, 0xE070);
4152 
4153 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4154 			 MDIO_WC_REG_RX66_SCW1, 0xC0D0);
4155 
4156 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4157 			 MDIO_WC_REG_RX66_SCW2, 0xA0B0);
4158 
4159 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4160 			 MDIO_WC_REG_RX66_SCW3, 0x8090);
4161 
4162 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4163 			 MDIO_WC_REG_RX66_SCW0_MASK, 0xF0F0);
4164 
4165 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4166 			 MDIO_WC_REG_RX66_SCW1_MASK, 0xF0F0);
4167 
4168 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4169 			 MDIO_WC_REG_RX66_SCW2_MASK, 0xF0F0);
4170 
4171 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4172 			 MDIO_WC_REG_RX66_SCW3_MASK, 0xF0F0);
4173 
4174 	/* Serdes Digital Misc1 */
4175 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4176 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6008);
4177 
4178 	/* Serdes Digital4 Misc3 */
4179 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4180 			 MDIO_WC_REG_DIGITAL4_MISC3, 0x8088);
4181 
4182 	/* Set Transmit PMD settings */
4183 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4184 			 MDIO_WC_REG_TX_FIR_TAP,
4185 			 (WC_TX_FIR(0x12, 0x2d, 0x00) |
4186 			  MDIO_WC_REG_TX_FIR_TAP_ENABLE));
4187 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4188 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4189 			 WC_TX_DRIVER(0x02, 0x02, 0x02, 0));
4190 }
4191 
bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy * phy,struct link_params * params,u8 fiber_mode,u8 always_autoneg)4192 static void bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy *phy,
4193 					   struct link_params *params,
4194 					   u8 fiber_mode,
4195 					   u8 always_autoneg)
4196 {
4197 	struct bnx2x *bp = params->bp;
4198 	u16 val16, digctrl_kx1, digctrl_kx2;
4199 
4200 	/* Clear XFI clock comp in non-10G single lane mode. */
4201 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4202 				  MDIO_WC_REG_RX66_CONTROL, ~(3<<13));
4203 
4204 	bnx2x_warpcore_set_lpi_passthrough(phy, params);
4205 
4206 	if (always_autoneg || phy->req_line_speed == SPEED_AUTO_NEG) {
4207 		/* SGMII Autoneg */
4208 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4209 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4210 					 0x1000);
4211 		DP(NETIF_MSG_LINK, "set SGMII AUTONEG\n");
4212 	} else {
4213 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4214 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4215 		val16 &= 0xcebf;
4216 		switch (phy->req_line_speed) {
4217 		case SPEED_10:
4218 			break;
4219 		case SPEED_100:
4220 			val16 |= 0x2000;
4221 			break;
4222 		case SPEED_1000:
4223 			val16 |= 0x0040;
4224 			break;
4225 		default:
4226 			DP(NETIF_MSG_LINK,
4227 			   "Speed not supported: 0x%x\n", phy->req_line_speed);
4228 			return;
4229 		}
4230 
4231 		if (phy->req_duplex == DUPLEX_FULL)
4232 			val16 |= 0x0100;
4233 
4234 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4235 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16);
4236 
4237 		DP(NETIF_MSG_LINK, "set SGMII force speed %d\n",
4238 			       phy->req_line_speed);
4239 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4240 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4241 		DP(NETIF_MSG_LINK, "  (readback) %x\n", val16);
4242 	}
4243 
4244 	/* SGMII Slave mode and disable signal detect */
4245 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4246 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &digctrl_kx1);
4247 	if (fiber_mode)
4248 		digctrl_kx1 = 1;
4249 	else
4250 		digctrl_kx1 &= 0xff4a;
4251 
4252 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4253 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4254 			digctrl_kx1);
4255 
4256 	/* Turn off parallel detect */
4257 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4258 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &digctrl_kx2);
4259 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4260 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4261 			(digctrl_kx2 & ~(1<<2)));
4262 
4263 	/* Re-enable parallel detect */
4264 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4265 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4266 			(digctrl_kx2 | (1<<2)));
4267 
4268 	/* Enable autodet */
4269 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4270 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4271 			(digctrl_kx1 | 0x10));
4272 }
4273 
bnx2x_warpcore_reset_lane(struct bnx2x * bp,struct bnx2x_phy * phy,u8 reset)4274 static void bnx2x_warpcore_reset_lane(struct bnx2x *bp,
4275 				      struct bnx2x_phy *phy,
4276 				      u8 reset)
4277 {
4278 	u16 val;
4279 	/* Take lane out of reset after configuration is finished */
4280 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4281 			MDIO_WC_REG_DIGITAL5_MISC6, &val);
4282 	if (reset)
4283 		val |= 0xC000;
4284 	else
4285 		val &= 0x3FFF;
4286 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4287 			 MDIO_WC_REG_DIGITAL5_MISC6, val);
4288 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4289 			 MDIO_WC_REG_DIGITAL5_MISC6, &val);
4290 }
4291 /* Clear SFI/XFI link settings registers */
bnx2x_warpcore_clear_regs(struct bnx2x_phy * phy,struct link_params * params,u16 lane)4292 static void bnx2x_warpcore_clear_regs(struct bnx2x_phy *phy,
4293 				      struct link_params *params,
4294 				      u16 lane)
4295 {
4296 	struct bnx2x *bp = params->bp;
4297 	u16 i;
4298 	static struct bnx2x_reg_set wc_regs[] = {
4299 		{MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0},
4300 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL1, 0x014a},
4301 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL3, 0x0800},
4302 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL4_MISC3, 0x8008},
4303 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4304 			0x0195},
4305 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4306 			0x0007},
4307 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4308 			0x0002},
4309 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6000},
4310 		{MDIO_WC_DEVAD, MDIO_WC_REG_TX_FIR_TAP, 0x0000},
4311 		{MDIO_WC_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040},
4312 		{MDIO_WC_DEVAD, MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0x0140}
4313 	};
4314 	/* Set XFI clock comp as default. */
4315 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4316 				 MDIO_WC_REG_RX66_CONTROL, (3<<13));
4317 
4318 	for (i = 0; i < ARRAY_SIZE(wc_regs); i++)
4319 		bnx2x_cl45_write(bp, phy, wc_regs[i].devad, wc_regs[i].reg,
4320 				 wc_regs[i].val);
4321 
4322 	lane = bnx2x_get_warpcore_lane(phy, params);
4323 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4324 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane, 0x0990);
4325 
4326 }
4327 
bnx2x_get_mod_abs_int_cfg(struct bnx2x * bp,u32 chip_id,u32 shmem_base,u8 port,u8 * gpio_num,u8 * gpio_port)4328 static int bnx2x_get_mod_abs_int_cfg(struct bnx2x *bp,
4329 						u32 chip_id,
4330 						u32 shmem_base, u8 port,
4331 						u8 *gpio_num, u8 *gpio_port)
4332 {
4333 	u32 cfg_pin;
4334 	*gpio_num = 0;
4335 	*gpio_port = 0;
4336 	if (CHIP_IS_E3(bp)) {
4337 		cfg_pin = (REG_RD(bp, shmem_base +
4338 				offsetof(struct shmem_region,
4339 				dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4340 				PORT_HW_CFG_E3_MOD_ABS_MASK) >>
4341 				PORT_HW_CFG_E3_MOD_ABS_SHIFT;
4342 
4343 		/* Should not happen. This function called upon interrupt
4344 		 * triggered by GPIO ( since EPIO can only generate interrupts
4345 		 * to MCP).
4346 		 * So if this function was called and none of the GPIOs was set,
4347 		 * it means the shit hit the fan.
4348 		 */
4349 		if ((cfg_pin < PIN_CFG_GPIO0_P0) ||
4350 		    (cfg_pin > PIN_CFG_GPIO3_P1)) {
4351 			DP(NETIF_MSG_LINK,
4352 			   "No cfg pin %x for module detect indication\n",
4353 			   cfg_pin);
4354 			return -EINVAL;
4355 		}
4356 
4357 		*gpio_num = (cfg_pin - PIN_CFG_GPIO0_P0) & 0x3;
4358 		*gpio_port = (cfg_pin - PIN_CFG_GPIO0_P0) >> 2;
4359 	} else {
4360 		*gpio_num = MISC_REGISTERS_GPIO_3;
4361 		*gpio_port = port;
4362 	}
4363 
4364 	return 0;
4365 }
4366 
bnx2x_is_sfp_module_plugged(struct bnx2x_phy * phy,struct link_params * params)4367 static int bnx2x_is_sfp_module_plugged(struct bnx2x_phy *phy,
4368 				       struct link_params *params)
4369 {
4370 	struct bnx2x *bp = params->bp;
4371 	u8 gpio_num, gpio_port;
4372 	u32 gpio_val;
4373 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id,
4374 				      params->shmem_base, params->port,
4375 				      &gpio_num, &gpio_port) != 0)
4376 		return 0;
4377 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
4378 
4379 	/* Call the handling function in case module is detected */
4380 	if (gpio_val == 0)
4381 		return 1;
4382 	else
4383 		return 0;
4384 }
bnx2x_warpcore_get_sigdet(struct bnx2x_phy * phy,struct link_params * params)4385 static int bnx2x_warpcore_get_sigdet(struct bnx2x_phy *phy,
4386 				     struct link_params *params)
4387 {
4388 	u16 gp2_status_reg0, lane;
4389 	struct bnx2x *bp = params->bp;
4390 
4391 	lane = bnx2x_get_warpcore_lane(phy, params);
4392 
4393 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_0,
4394 				 &gp2_status_reg0);
4395 
4396 	return (gp2_status_reg0 >> (8+lane)) & 0x1;
4397 }
4398 
bnx2x_warpcore_config_runtime(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4399 static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
4400 					  struct link_params *params,
4401 					  struct link_vars *vars)
4402 {
4403 	struct bnx2x *bp = params->bp;
4404 	u32 serdes_net_if;
4405 	u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
4406 
4407 	vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
4408 
4409 	if (!vars->turn_to_run_wc_rt)
4410 		return;
4411 
4412 	if (vars->rx_tx_asic_rst) {
4413 		u16 lane = bnx2x_get_warpcore_lane(phy, params);
4414 		serdes_net_if = (REG_RD(bp, params->shmem_base +
4415 				offsetof(struct shmem_region, dev_info.
4416 				port_hw_config[params->port].default_cfg)) &
4417 				PORT_HW_CFG_NET_SERDES_IF_MASK);
4418 
4419 		switch (serdes_net_if) {
4420 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4421 			/* Do we get link yet? */
4422 			bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, 0x81d1,
4423 					&gp_status1);
4424 			lnkup = (gp_status1 >> (8+lane)) & 0x1;/* 1G */
4425 				/*10G KR*/
4426 			lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
4427 
4428 			if (lnkup_kr || lnkup) {
4429 				vars->rx_tx_asic_rst = 0;
4430 			} else {
4431 				/* Reset the lane to see if link comes up.*/
4432 				bnx2x_warpcore_reset_lane(bp, phy, 1);
4433 				bnx2x_warpcore_reset_lane(bp, phy, 0);
4434 
4435 				/* Restart Autoneg */
4436 				bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
4437 					MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
4438 
4439 				vars->rx_tx_asic_rst--;
4440 				DP(NETIF_MSG_LINK, "0x%x retry left\n",
4441 				vars->rx_tx_asic_rst);
4442 			}
4443 			break;
4444 
4445 		default:
4446 			break;
4447 		}
4448 
4449 	} /*params->rx_tx_asic_rst*/
4450 
4451 }
bnx2x_warpcore_config_sfi(struct bnx2x_phy * phy,struct link_params * params)4452 static void bnx2x_warpcore_config_sfi(struct bnx2x_phy *phy,
4453 				      struct link_params *params)
4454 {
4455 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4456 	struct bnx2x *bp = params->bp;
4457 	bnx2x_warpcore_clear_regs(phy, params, lane);
4458 	if ((params->req_line_speed[LINK_CONFIG_IDX(INT_PHY)] ==
4459 	     SPEED_10000) &&
4460 	    (phy->media_type != ETH_PHY_SFP_1G_FIBER)) {
4461 		DP(NETIF_MSG_LINK, "Setting 10G SFI\n");
4462 		bnx2x_warpcore_set_10G_XFI(phy, params, 0);
4463 	} else {
4464 		DP(NETIF_MSG_LINK, "Setting 1G Fiber\n");
4465 		bnx2x_warpcore_set_sgmii_speed(phy, params, 1, 0);
4466 	}
4467 }
4468 
bnx2x_sfp_e3_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)4469 static void bnx2x_sfp_e3_set_transmitter(struct link_params *params,
4470 					 struct bnx2x_phy *phy,
4471 					 u8 tx_en)
4472 {
4473 	struct bnx2x *bp = params->bp;
4474 	u32 cfg_pin;
4475 	u8 port = params->port;
4476 
4477 	cfg_pin = REG_RD(bp, params->shmem_base +
4478 			 offsetof(struct shmem_region,
4479 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4480 		PORT_HW_CFG_E3_TX_LASER_MASK;
4481 	/* Set the !tx_en since this pin is DISABLE_TX_LASER */
4482 	DP(NETIF_MSG_LINK, "Setting WC TX to %d\n", tx_en);
4483 
4484 	/* For 20G, the expected pin to be used is 3 pins after the current */
4485 	bnx2x_set_cfg_pin(bp, cfg_pin, tx_en ^ 1);
4486 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)
4487 		bnx2x_set_cfg_pin(bp, cfg_pin + 3, tx_en ^ 1);
4488 }
4489 
bnx2x_warpcore_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4490 static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
4491 				       struct link_params *params,
4492 				       struct link_vars *vars)
4493 {
4494 	struct bnx2x *bp = params->bp;
4495 	u32 serdes_net_if;
4496 	u8 fiber_mode;
4497 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4498 	serdes_net_if = (REG_RD(bp, params->shmem_base +
4499 			 offsetof(struct shmem_region, dev_info.
4500 				  port_hw_config[params->port].default_cfg)) &
4501 			 PORT_HW_CFG_NET_SERDES_IF_MASK);
4502 	DP(NETIF_MSG_LINK, "Begin Warpcore init, link_speed %d, "
4503 			   "serdes_net_if = 0x%x\n",
4504 		       vars->line_speed, serdes_net_if);
4505 	bnx2x_set_aer_mmd(params, phy);
4506 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4507 	vars->phy_flags |= PHY_XGXS_FLAG;
4508 	if ((serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_SGMII) ||
4509 	    (phy->req_line_speed &&
4510 	     ((phy->req_line_speed == SPEED_100) ||
4511 	      (phy->req_line_speed == SPEED_10)))) {
4512 		vars->phy_flags |= PHY_SGMII_FLAG;
4513 		DP(NETIF_MSG_LINK, "Setting SGMII mode\n");
4514 		bnx2x_warpcore_clear_regs(phy, params, lane);
4515 		bnx2x_warpcore_set_sgmii_speed(phy, params, 0, 1);
4516 	} else {
4517 		switch (serdes_net_if) {
4518 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4519 			/* Enable KR Auto Neg */
4520 			if (params->loopback_mode != LOOPBACK_EXT)
4521 				bnx2x_warpcore_enable_AN_KR(phy, params, vars);
4522 			else {
4523 				DP(NETIF_MSG_LINK, "Setting KR 10G-Force\n");
4524 				bnx2x_warpcore_set_10G_KR(phy, params, vars);
4525 			}
4526 			break;
4527 
4528 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
4529 			bnx2x_warpcore_clear_regs(phy, params, lane);
4530 			if (vars->line_speed == SPEED_10000) {
4531 				DP(NETIF_MSG_LINK, "Setting 10G XFI\n");
4532 				bnx2x_warpcore_set_10G_XFI(phy, params, 1);
4533 			} else {
4534 				if (SINGLE_MEDIA_DIRECT(params)) {
4535 					DP(NETIF_MSG_LINK, "1G Fiber\n");
4536 					fiber_mode = 1;
4537 				} else {
4538 					DP(NETIF_MSG_LINK, "10/100/1G SGMII\n");
4539 					fiber_mode = 0;
4540 				}
4541 				bnx2x_warpcore_set_sgmii_speed(phy,
4542 								params,
4543 								fiber_mode,
4544 								0);
4545 			}
4546 
4547 			break;
4548 
4549 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
4550 			/* Issue Module detection if module is plugged, or
4551 			 * enabled transmitter to avoid current leakage in case
4552 			 * no module is connected
4553 			 */
4554 			if ((params->loopback_mode == LOOPBACK_NONE) ||
4555 			    (params->loopback_mode == LOOPBACK_EXT)) {
4556 				if (bnx2x_is_sfp_module_plugged(phy, params))
4557 					bnx2x_sfp_module_detection(phy, params);
4558 				else
4559 					bnx2x_sfp_e3_set_transmitter(params,
4560 								     phy, 1);
4561 			}
4562 
4563 			bnx2x_warpcore_config_sfi(phy, params);
4564 			break;
4565 
4566 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
4567 			if (vars->line_speed != SPEED_20000) {
4568 				DP(NETIF_MSG_LINK, "Speed not supported yet\n");
4569 				return;
4570 			}
4571 			DP(NETIF_MSG_LINK, "Setting 20G DXGXS\n");
4572 			bnx2x_warpcore_set_20G_DXGXS(bp, phy, lane);
4573 			/* Issue Module detection */
4574 
4575 			bnx2x_sfp_module_detection(phy, params);
4576 			break;
4577 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
4578 			if (!params->loopback_mode) {
4579 				bnx2x_warpcore_enable_AN_KR(phy, params, vars);
4580 			} else {
4581 				DP(NETIF_MSG_LINK, "Setting KR 20G-Force\n");
4582 				bnx2x_warpcore_set_20G_force_KR2(phy, params);
4583 			}
4584 			break;
4585 		default:
4586 			DP(NETIF_MSG_LINK,
4587 			   "Unsupported Serdes Net Interface 0x%x\n",
4588 			   serdes_net_if);
4589 			return;
4590 		}
4591 	}
4592 
4593 	/* Take lane out of reset after configuration is finished */
4594 	bnx2x_warpcore_reset_lane(bp, phy, 0);
4595 	DP(NETIF_MSG_LINK, "Exit config init\n");
4596 }
4597 
bnx2x_warpcore_link_reset(struct bnx2x_phy * phy,struct link_params * params)4598 static void bnx2x_warpcore_link_reset(struct bnx2x_phy *phy,
4599 				      struct link_params *params)
4600 {
4601 	struct bnx2x *bp = params->bp;
4602 	u16 val16, lane;
4603 	bnx2x_sfp_e3_set_transmitter(params, phy, 0);
4604 	bnx2x_set_mdio_emac_per_phy(bp, params);
4605 	bnx2x_set_aer_mmd(params, phy);
4606 	/* Global register */
4607 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4608 
4609 	/* Clear loopback settings (if any) */
4610 	/* 10G & 20G */
4611 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4612 				  MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0xBFFF);
4613 
4614 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4615 				  MDIO_WC_REG_IEEE0BLK_MIICNTL, 0xfffe);
4616 
4617 	/* Update those 1-copy registers */
4618 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4619 			  MDIO_AER_BLOCK_AER_REG, 0);
4620 	/* Enable 1G MDIO (1-copy) */
4621 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4622 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4623 				  ~0x10);
4624 
4625 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4626 				  MDIO_WC_REG_XGXSBLK1_LANECTRL2, 0xff00);
4627 	lane = bnx2x_get_warpcore_lane(phy, params);
4628 	/* Disable CL36 PCS Tx */
4629 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4630 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
4631 	val16 |= (0x11 << lane);
4632 	if (phy->flags & FLAGS_WC_DUAL_MODE)
4633 		val16 |= (0x22 << lane);
4634 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4635 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
4636 
4637 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4638 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
4639 	val16 &= ~(0x0303 << (lane << 1));
4640 	val16 |= (0x0101 << (lane << 1));
4641 	if (phy->flags & FLAGS_WC_DUAL_MODE) {
4642 		val16 &= ~(0x0c0c << (lane << 1));
4643 		val16 |= (0x0404 << (lane << 1));
4644 	}
4645 
4646 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4647 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
4648 	/* Restore AER */
4649 	bnx2x_set_aer_mmd(params, phy);
4650 
4651 }
4652 
bnx2x_set_warpcore_loopback(struct bnx2x_phy * phy,struct link_params * params)4653 static void bnx2x_set_warpcore_loopback(struct bnx2x_phy *phy,
4654 					struct link_params *params)
4655 {
4656 	struct bnx2x *bp = params->bp;
4657 	u16 val16;
4658 	u32 lane;
4659 	DP(NETIF_MSG_LINK, "Setting Warpcore loopback type %x, speed %d\n",
4660 		       params->loopback_mode, phy->req_line_speed);
4661 
4662 	if (phy->req_line_speed < SPEED_10000 ||
4663 	    phy->supported & SUPPORTED_20000baseKR2_Full) {
4664 		/* 10/100/1000/20G-KR2 */
4665 
4666 		/* Update those 1-copy registers */
4667 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4668 				  MDIO_AER_BLOCK_AER_REG, 0);
4669 		/* Enable 1G MDIO (1-copy) */
4670 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4671 					 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4672 					 0x10);
4673 		/* Set 1G loopback based on lane (1-copy) */
4674 		lane = bnx2x_get_warpcore_lane(phy, params);
4675 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4676 				MDIO_WC_REG_XGXSBLK1_LANECTRL2, &val16);
4677 		val16 |= (1<<lane);
4678 		if (phy->flags & FLAGS_WC_DUAL_MODE)
4679 			val16 |= (2<<lane);
4680 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4681 				 MDIO_WC_REG_XGXSBLK1_LANECTRL2,
4682 				 val16);
4683 
4684 		/* Switch back to 4-copy registers */
4685 		bnx2x_set_aer_mmd(params, phy);
4686 	} else {
4687 		/* 10G / 20G-DXGXS */
4688 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4689 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4690 					 0x4000);
4691 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4692 					 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1);
4693 	}
4694 }
4695 
4696 
4697 
bnx2x_sync_link(struct link_params * params,struct link_vars * vars)4698 static void bnx2x_sync_link(struct link_params *params,
4699 			     struct link_vars *vars)
4700 {
4701 	struct bnx2x *bp = params->bp;
4702 	u8 link_10g_plus;
4703 	if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4704 		vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
4705 	vars->link_up = (vars->link_status & LINK_STATUS_LINK_UP);
4706 	if (vars->link_up) {
4707 		DP(NETIF_MSG_LINK, "phy link up\n");
4708 
4709 		vars->phy_link_up = 1;
4710 		vars->duplex = DUPLEX_FULL;
4711 		switch (vars->link_status &
4712 			LINK_STATUS_SPEED_AND_DUPLEX_MASK) {
4713 		case LINK_10THD:
4714 			vars->duplex = DUPLEX_HALF;
4715 			fallthrough;
4716 		case LINK_10TFD:
4717 			vars->line_speed = SPEED_10;
4718 			break;
4719 
4720 		case LINK_100TXHD:
4721 			vars->duplex = DUPLEX_HALF;
4722 			fallthrough;
4723 		case LINK_100T4:
4724 		case LINK_100TXFD:
4725 			vars->line_speed = SPEED_100;
4726 			break;
4727 
4728 		case LINK_1000THD:
4729 			vars->duplex = DUPLEX_HALF;
4730 			fallthrough;
4731 		case LINK_1000TFD:
4732 			vars->line_speed = SPEED_1000;
4733 			break;
4734 
4735 		case LINK_2500THD:
4736 			vars->duplex = DUPLEX_HALF;
4737 			fallthrough;
4738 		case LINK_2500TFD:
4739 			vars->line_speed = SPEED_2500;
4740 			break;
4741 
4742 		case LINK_10GTFD:
4743 			vars->line_speed = SPEED_10000;
4744 			break;
4745 		case LINK_20GTFD:
4746 			vars->line_speed = SPEED_20000;
4747 			break;
4748 		default:
4749 			break;
4750 		}
4751 		vars->flow_ctrl = 0;
4752 		if (vars->link_status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED)
4753 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_TX;
4754 
4755 		if (vars->link_status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED)
4756 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_RX;
4757 
4758 		if (!vars->flow_ctrl)
4759 			vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4760 
4761 		if (vars->line_speed &&
4762 		    ((vars->line_speed == SPEED_10) ||
4763 		     (vars->line_speed == SPEED_100))) {
4764 			vars->phy_flags |= PHY_SGMII_FLAG;
4765 		} else {
4766 			vars->phy_flags &= ~PHY_SGMII_FLAG;
4767 		}
4768 		if (vars->line_speed &&
4769 		    USES_WARPCORE(bp) &&
4770 		    (vars->line_speed == SPEED_1000))
4771 			vars->phy_flags |= PHY_SGMII_FLAG;
4772 		/* Anything 10 and over uses the bmac */
4773 		link_10g_plus = (vars->line_speed >= SPEED_10000);
4774 
4775 		if (link_10g_plus) {
4776 			if (USES_WARPCORE(bp))
4777 				vars->mac_type = MAC_TYPE_XMAC;
4778 			else
4779 				vars->mac_type = MAC_TYPE_BMAC;
4780 		} else {
4781 			if (USES_WARPCORE(bp))
4782 				vars->mac_type = MAC_TYPE_UMAC;
4783 			else
4784 				vars->mac_type = MAC_TYPE_EMAC;
4785 		}
4786 	} else { /* Link down */
4787 		DP(NETIF_MSG_LINK, "phy link down\n");
4788 
4789 		vars->phy_link_up = 0;
4790 
4791 		vars->line_speed = 0;
4792 		vars->duplex = DUPLEX_FULL;
4793 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4794 
4795 		/* Indicate no mac active */
4796 		vars->mac_type = MAC_TYPE_NONE;
4797 		if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4798 			vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
4799 		if (vars->link_status & LINK_STATUS_SFP_TX_FAULT)
4800 			vars->phy_flags |= PHY_SFP_TX_FAULT_FLAG;
4801 	}
4802 }
4803 
bnx2x_link_status_update(struct link_params * params,struct link_vars * vars)4804 void bnx2x_link_status_update(struct link_params *params,
4805 			      struct link_vars *vars)
4806 {
4807 	struct bnx2x *bp = params->bp;
4808 	u8 port = params->port;
4809 	u32 sync_offset, media_types;
4810 	/* Update PHY configuration */
4811 	set_phy_vars(params, vars);
4812 
4813 	vars->link_status = REG_RD(bp, params->shmem_base +
4814 				   offsetof(struct shmem_region,
4815 					    port_mb[port].link_status));
4816 
4817 	/* Force link UP in non LOOPBACK_EXT loopback mode(s) */
4818 	if (params->loopback_mode != LOOPBACK_NONE &&
4819 	    params->loopback_mode != LOOPBACK_EXT)
4820 		vars->link_status |= LINK_STATUS_LINK_UP;
4821 
4822 	if (bnx2x_eee_has_cap(params))
4823 		vars->eee_status = REG_RD(bp, params->shmem2_base +
4824 					  offsetof(struct shmem2_region,
4825 						   eee_status[params->port]));
4826 
4827 	vars->phy_flags = PHY_XGXS_FLAG;
4828 	bnx2x_sync_link(params, vars);
4829 	/* Sync media type */
4830 	sync_offset = params->shmem_base +
4831 			offsetof(struct shmem_region,
4832 				 dev_info.port_hw_config[port].media_type);
4833 	media_types = REG_RD(bp, sync_offset);
4834 
4835 	params->phy[INT_PHY].media_type =
4836 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) >>
4837 		PORT_HW_CFG_MEDIA_TYPE_PHY0_SHIFT;
4838 	params->phy[EXT_PHY1].media_type =
4839 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY1_MASK) >>
4840 		PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT;
4841 	params->phy[EXT_PHY2].media_type =
4842 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY2_MASK) >>
4843 		PORT_HW_CFG_MEDIA_TYPE_PHY2_SHIFT;
4844 	DP(NETIF_MSG_LINK, "media_types = 0x%x\n", media_types);
4845 
4846 	/* Sync AEU offset */
4847 	sync_offset = params->shmem_base +
4848 			offsetof(struct shmem_region,
4849 				 dev_info.port_hw_config[port].aeu_int_mask);
4850 
4851 	vars->aeu_int_mask = REG_RD(bp, sync_offset);
4852 
4853 	/* Sync PFC status */
4854 	if (vars->link_status & LINK_STATUS_PFC_ENABLED)
4855 		params->feature_config_flags |=
4856 					FEATURE_CONFIG_PFC_ENABLED;
4857 	else
4858 		params->feature_config_flags &=
4859 					~FEATURE_CONFIG_PFC_ENABLED;
4860 
4861 	if (SHMEM2_HAS(bp, link_attr_sync))
4862 		params->link_attr_sync = SHMEM2_RD(bp,
4863 						 link_attr_sync[params->port]);
4864 
4865 	DP(NETIF_MSG_LINK, "link_status 0x%x  phy_link_up %x int_mask 0x%x\n",
4866 		 vars->link_status, vars->phy_link_up, vars->aeu_int_mask);
4867 	DP(NETIF_MSG_LINK, "line_speed %x  duplex %x  flow_ctrl 0x%x\n",
4868 		 vars->line_speed, vars->duplex, vars->flow_ctrl);
4869 }
4870 
bnx2x_set_master_ln(struct link_params * params,struct bnx2x_phy * phy)4871 static void bnx2x_set_master_ln(struct link_params *params,
4872 				struct bnx2x_phy *phy)
4873 {
4874 	struct bnx2x *bp = params->bp;
4875 	u16 new_master_ln, ser_lane;
4876 	ser_lane = ((params->lane_config &
4877 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
4878 		    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
4879 
4880 	/* Set the master_ln for AN */
4881 	CL22_RD_OVER_CL45(bp, phy,
4882 			  MDIO_REG_BANK_XGXS_BLOCK2,
4883 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4884 			  &new_master_ln);
4885 
4886 	CL22_WR_OVER_CL45(bp, phy,
4887 			  MDIO_REG_BANK_XGXS_BLOCK2 ,
4888 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4889 			  (new_master_ln | ser_lane));
4890 }
4891 
bnx2x_reset_unicore(struct link_params * params,struct bnx2x_phy * phy,u8 set_serdes)4892 static int bnx2x_reset_unicore(struct link_params *params,
4893 			       struct bnx2x_phy *phy,
4894 			       u8 set_serdes)
4895 {
4896 	struct bnx2x *bp = params->bp;
4897 	u16 mii_control;
4898 	u16 i;
4899 	CL22_RD_OVER_CL45(bp, phy,
4900 			  MDIO_REG_BANK_COMBO_IEEE0,
4901 			  MDIO_COMBO_IEEE0_MII_CONTROL, &mii_control);
4902 
4903 	/* Reset the unicore */
4904 	CL22_WR_OVER_CL45(bp, phy,
4905 			  MDIO_REG_BANK_COMBO_IEEE0,
4906 			  MDIO_COMBO_IEEE0_MII_CONTROL,
4907 			  (mii_control |
4908 			   MDIO_COMBO_IEEO_MII_CONTROL_RESET));
4909 	if (set_serdes)
4910 		bnx2x_set_serdes_access(bp, params->port);
4911 
4912 	/* Wait for the reset to self clear */
4913 	for (i = 0; i < MDIO_ACCESS_TIMEOUT; i++) {
4914 		udelay(5);
4915 
4916 		/* The reset erased the previous bank value */
4917 		CL22_RD_OVER_CL45(bp, phy,
4918 				  MDIO_REG_BANK_COMBO_IEEE0,
4919 				  MDIO_COMBO_IEEE0_MII_CONTROL,
4920 				  &mii_control);
4921 
4922 		if (!(mii_control & MDIO_COMBO_IEEO_MII_CONTROL_RESET)) {
4923 			udelay(5);
4924 			return 0;
4925 		}
4926 	}
4927 
4928 	netdev_err(bp->dev,  "Warning: PHY was not initialized,"
4929 			      " Port %d\n",
4930 			 params->port);
4931 	DP(NETIF_MSG_LINK, "BUG! XGXS is still in reset!\n");
4932 	return -EINVAL;
4933 
4934 }
4935 
bnx2x_set_swap_lanes(struct link_params * params,struct bnx2x_phy * phy)4936 static void bnx2x_set_swap_lanes(struct link_params *params,
4937 				 struct bnx2x_phy *phy)
4938 {
4939 	struct bnx2x *bp = params->bp;
4940 	/* Each two bits represents a lane number:
4941 	 * No swap is 0123 => 0x1b no need to enable the swap
4942 	 */
4943 	u16 rx_lane_swap, tx_lane_swap;
4944 
4945 	rx_lane_swap = ((params->lane_config &
4946 			 PORT_HW_CFG_LANE_SWAP_CFG_RX_MASK) >>
4947 			PORT_HW_CFG_LANE_SWAP_CFG_RX_SHIFT);
4948 	tx_lane_swap = ((params->lane_config &
4949 			 PORT_HW_CFG_LANE_SWAP_CFG_TX_MASK) >>
4950 			PORT_HW_CFG_LANE_SWAP_CFG_TX_SHIFT);
4951 
4952 	if (rx_lane_swap != 0x1b) {
4953 		CL22_WR_OVER_CL45(bp, phy,
4954 				  MDIO_REG_BANK_XGXS_BLOCK2,
4955 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP,
4956 				  (rx_lane_swap |
4957 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_ENABLE |
4958 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_FORCE_ENABLE));
4959 	} else {
4960 		CL22_WR_OVER_CL45(bp, phy,
4961 				  MDIO_REG_BANK_XGXS_BLOCK2,
4962 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP, 0);
4963 	}
4964 
4965 	if (tx_lane_swap != 0x1b) {
4966 		CL22_WR_OVER_CL45(bp, phy,
4967 				  MDIO_REG_BANK_XGXS_BLOCK2,
4968 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP,
4969 				  (tx_lane_swap |
4970 				   MDIO_XGXS_BLOCK2_TX_LN_SWAP_ENABLE));
4971 	} else {
4972 		CL22_WR_OVER_CL45(bp, phy,
4973 				  MDIO_REG_BANK_XGXS_BLOCK2,
4974 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP, 0);
4975 	}
4976 }
4977 
bnx2x_set_parallel_detection(struct bnx2x_phy * phy,struct link_params * params)4978 static void bnx2x_set_parallel_detection(struct bnx2x_phy *phy,
4979 					 struct link_params *params)
4980 {
4981 	struct bnx2x *bp = params->bp;
4982 	u16 control2;
4983 	CL22_RD_OVER_CL45(bp, phy,
4984 			  MDIO_REG_BANK_SERDES_DIGITAL,
4985 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4986 			  &control2);
4987 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
4988 		control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4989 	else
4990 		control2 &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4991 	DP(NETIF_MSG_LINK, "phy->speed_cap_mask = 0x%x, control2 = 0x%x\n",
4992 		phy->speed_cap_mask, control2);
4993 	CL22_WR_OVER_CL45(bp, phy,
4994 			  MDIO_REG_BANK_SERDES_DIGITAL,
4995 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4996 			  control2);
4997 
4998 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
4999 	     (phy->speed_cap_mask &
5000 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
5001 		DP(NETIF_MSG_LINK, "XGXS\n");
5002 
5003 		CL22_WR_OVER_CL45(bp, phy,
5004 				 MDIO_REG_BANK_10G_PARALLEL_DETECT,
5005 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK,
5006 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK_CNT);
5007 
5008 		CL22_RD_OVER_CL45(bp, phy,
5009 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5010 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
5011 				  &control2);
5012 
5013 
5014 		control2 |=
5015 		    MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL_PARDET10G_EN;
5016 
5017 		CL22_WR_OVER_CL45(bp, phy,
5018 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5019 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
5020 				  control2);
5021 
5022 		/* Disable parallel detection of HiG */
5023 		CL22_WR_OVER_CL45(bp, phy,
5024 				  MDIO_REG_BANK_XGXS_BLOCK2,
5025 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G,
5026 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_CX4_XGXS |
5027 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_HIGIG_XGXS);
5028 	}
5029 }
5030 
bnx2x_set_autoneg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u8 enable_cl73)5031 static void bnx2x_set_autoneg(struct bnx2x_phy *phy,
5032 			      struct link_params *params,
5033 			      struct link_vars *vars,
5034 			      u8 enable_cl73)
5035 {
5036 	struct bnx2x *bp = params->bp;
5037 	u16 reg_val;
5038 
5039 	/* CL37 Autoneg */
5040 	CL22_RD_OVER_CL45(bp, phy,
5041 			  MDIO_REG_BANK_COMBO_IEEE0,
5042 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
5043 
5044 	/* CL37 Autoneg Enabled */
5045 	if (vars->line_speed == SPEED_AUTO_NEG)
5046 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_AN_EN;
5047 	else /* CL37 Autoneg Disabled */
5048 		reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5049 			     MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN);
5050 
5051 	CL22_WR_OVER_CL45(bp, phy,
5052 			  MDIO_REG_BANK_COMBO_IEEE0,
5053 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5054 
5055 	/* Enable/Disable Autodetection */
5056 
5057 	CL22_RD_OVER_CL45(bp, phy,
5058 			  MDIO_REG_BANK_SERDES_DIGITAL,
5059 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, &reg_val);
5060 	reg_val &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_SIGNAL_DETECT_EN |
5061 		    MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT);
5062 	reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE;
5063 	if (vars->line_speed == SPEED_AUTO_NEG)
5064 		reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5065 	else
5066 		reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5067 
5068 	CL22_WR_OVER_CL45(bp, phy,
5069 			  MDIO_REG_BANK_SERDES_DIGITAL,
5070 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, reg_val);
5071 
5072 	/* Enable TetonII and BAM autoneg */
5073 	CL22_RD_OVER_CL45(bp, phy,
5074 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5075 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5076 			  &reg_val);
5077 	if (vars->line_speed == SPEED_AUTO_NEG) {
5078 		/* Enable BAM aneg Mode and TetonII aneg Mode */
5079 		reg_val |= (MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5080 			    MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5081 	} else {
5082 		/* TetonII and BAM Autoneg Disabled */
5083 		reg_val &= ~(MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5084 			     MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5085 	}
5086 	CL22_WR_OVER_CL45(bp, phy,
5087 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5088 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5089 			  reg_val);
5090 
5091 	if (enable_cl73) {
5092 		/* Enable Cl73 FSM status bits */
5093 		CL22_WR_OVER_CL45(bp, phy,
5094 				  MDIO_REG_BANK_CL73_USERB0,
5095 				  MDIO_CL73_USERB0_CL73_UCTRL,
5096 				  0xe);
5097 
5098 		/* Enable BAM Station Manager*/
5099 		CL22_WR_OVER_CL45(bp, phy,
5100 			MDIO_REG_BANK_CL73_USERB0,
5101 			MDIO_CL73_USERB0_CL73_BAM_CTRL1,
5102 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_EN |
5103 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_STATION_MNGR_EN |
5104 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_NP_AFTER_BP_EN);
5105 
5106 		/* Advertise CL73 link speeds */
5107 		CL22_RD_OVER_CL45(bp, phy,
5108 				  MDIO_REG_BANK_CL73_IEEEB1,
5109 				  MDIO_CL73_IEEEB1_AN_ADV2,
5110 				  &reg_val);
5111 		if (phy->speed_cap_mask &
5112 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5113 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4;
5114 		if (phy->speed_cap_mask &
5115 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
5116 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX;
5117 
5118 		CL22_WR_OVER_CL45(bp, phy,
5119 				  MDIO_REG_BANK_CL73_IEEEB1,
5120 				  MDIO_CL73_IEEEB1_AN_ADV2,
5121 				  reg_val);
5122 
5123 		/* CL73 Autoneg Enabled */
5124 		reg_val = MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN;
5125 
5126 	} else /* CL73 Autoneg Disabled */
5127 		reg_val = 0;
5128 
5129 	CL22_WR_OVER_CL45(bp, phy,
5130 			  MDIO_REG_BANK_CL73_IEEEB0,
5131 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL, reg_val);
5132 }
5133 
5134 /* Program SerDes, forced speed */
bnx2x_program_serdes(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5135 static void bnx2x_program_serdes(struct bnx2x_phy *phy,
5136 				 struct link_params *params,
5137 				 struct link_vars *vars)
5138 {
5139 	struct bnx2x *bp = params->bp;
5140 	u16 reg_val;
5141 
5142 	/* Program duplex, disable autoneg and sgmii*/
5143 	CL22_RD_OVER_CL45(bp, phy,
5144 			  MDIO_REG_BANK_COMBO_IEEE0,
5145 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
5146 	reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX |
5147 		     MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5148 		     MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK);
5149 	if (phy->req_duplex == DUPLEX_FULL)
5150 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5151 	CL22_WR_OVER_CL45(bp, phy,
5152 			  MDIO_REG_BANK_COMBO_IEEE0,
5153 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5154 
5155 	/* Program speed
5156 	 *  - needed only if the speed is greater than 1G (2.5G or 10G)
5157 	 */
5158 	CL22_RD_OVER_CL45(bp, phy,
5159 			  MDIO_REG_BANK_SERDES_DIGITAL,
5160 			  MDIO_SERDES_DIGITAL_MISC1, &reg_val);
5161 	/* Clearing the speed value before setting the right speed */
5162 	DP(NETIF_MSG_LINK, "MDIO_REG_BANK_SERDES_DIGITAL = 0x%x\n", reg_val);
5163 
5164 	reg_val &= ~(MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK |
5165 		     MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5166 
5167 	if (!((vars->line_speed == SPEED_1000) ||
5168 	      (vars->line_speed == SPEED_100) ||
5169 	      (vars->line_speed == SPEED_10))) {
5170 
5171 		reg_val |= (MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_156_25M |
5172 			    MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5173 		if (vars->line_speed == SPEED_10000)
5174 			reg_val |=
5175 				MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_10G_CX4;
5176 	}
5177 
5178 	CL22_WR_OVER_CL45(bp, phy,
5179 			  MDIO_REG_BANK_SERDES_DIGITAL,
5180 			  MDIO_SERDES_DIGITAL_MISC1, reg_val);
5181 
5182 }
5183 
bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy * phy,struct link_params * params)5184 static void bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy *phy,
5185 					      struct link_params *params)
5186 {
5187 	struct bnx2x *bp = params->bp;
5188 	u16 val = 0;
5189 
5190 	/* Set extended capabilities */
5191 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G)
5192 		val |= MDIO_OVER_1G_UP1_2_5G;
5193 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5194 		val |= MDIO_OVER_1G_UP1_10G;
5195 	CL22_WR_OVER_CL45(bp, phy,
5196 			  MDIO_REG_BANK_OVER_1G,
5197 			  MDIO_OVER_1G_UP1, val);
5198 
5199 	CL22_WR_OVER_CL45(bp, phy,
5200 			  MDIO_REG_BANK_OVER_1G,
5201 			  MDIO_OVER_1G_UP3, 0x400);
5202 }
5203 
bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy * phy,struct link_params * params,u16 ieee_fc)5204 static void bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy *phy,
5205 					      struct link_params *params,
5206 					      u16 ieee_fc)
5207 {
5208 	struct bnx2x *bp = params->bp;
5209 	u16 val;
5210 	/* For AN, we are always publishing full duplex */
5211 
5212 	CL22_WR_OVER_CL45(bp, phy,
5213 			  MDIO_REG_BANK_COMBO_IEEE0,
5214 			  MDIO_COMBO_IEEE0_AUTO_NEG_ADV, ieee_fc);
5215 	CL22_RD_OVER_CL45(bp, phy,
5216 			  MDIO_REG_BANK_CL73_IEEEB1,
5217 			  MDIO_CL73_IEEEB1_AN_ADV1, &val);
5218 	val &= ~MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH;
5219 	val |= ((ieee_fc<<3) & MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK);
5220 	CL22_WR_OVER_CL45(bp, phy,
5221 			  MDIO_REG_BANK_CL73_IEEEB1,
5222 			  MDIO_CL73_IEEEB1_AN_ADV1, val);
5223 }
5224 
bnx2x_restart_autoneg(struct bnx2x_phy * phy,struct link_params * params,u8 enable_cl73)5225 static void bnx2x_restart_autoneg(struct bnx2x_phy *phy,
5226 				  struct link_params *params,
5227 				  u8 enable_cl73)
5228 {
5229 	struct bnx2x *bp = params->bp;
5230 	u16 mii_control;
5231 
5232 	DP(NETIF_MSG_LINK, "bnx2x_restart_autoneg\n");
5233 	/* Enable and restart BAM/CL37 aneg */
5234 
5235 	if (enable_cl73) {
5236 		CL22_RD_OVER_CL45(bp, phy,
5237 				  MDIO_REG_BANK_CL73_IEEEB0,
5238 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5239 				  &mii_control);
5240 
5241 		CL22_WR_OVER_CL45(bp, phy,
5242 				  MDIO_REG_BANK_CL73_IEEEB0,
5243 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5244 				  (mii_control |
5245 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN |
5246 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_RESTART_AN));
5247 	} else {
5248 
5249 		CL22_RD_OVER_CL45(bp, phy,
5250 				  MDIO_REG_BANK_COMBO_IEEE0,
5251 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5252 				  &mii_control);
5253 		DP(NETIF_MSG_LINK,
5254 			 "bnx2x_restart_autoneg mii_control before = 0x%x\n",
5255 			 mii_control);
5256 		CL22_WR_OVER_CL45(bp, phy,
5257 				  MDIO_REG_BANK_COMBO_IEEE0,
5258 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5259 				  (mii_control |
5260 				   MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5261 				   MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN));
5262 	}
5263 }
5264 
bnx2x_initialize_sgmii_process(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5265 static void bnx2x_initialize_sgmii_process(struct bnx2x_phy *phy,
5266 					   struct link_params *params,
5267 					   struct link_vars *vars)
5268 {
5269 	struct bnx2x *bp = params->bp;
5270 	u16 control1;
5271 
5272 	/* In SGMII mode, the unicore is always slave */
5273 
5274 	CL22_RD_OVER_CL45(bp, phy,
5275 			  MDIO_REG_BANK_SERDES_DIGITAL,
5276 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5277 			  &control1);
5278 	control1 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT;
5279 	/* Set sgmii mode (and not fiber) */
5280 	control1 &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE |
5281 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET |
5282 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_MSTR_MODE);
5283 	CL22_WR_OVER_CL45(bp, phy,
5284 			  MDIO_REG_BANK_SERDES_DIGITAL,
5285 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5286 			  control1);
5287 
5288 	/* If forced speed */
5289 	if (!(vars->line_speed == SPEED_AUTO_NEG)) {
5290 		/* Set speed, disable autoneg */
5291 		u16 mii_control;
5292 
5293 		CL22_RD_OVER_CL45(bp, phy,
5294 				  MDIO_REG_BANK_COMBO_IEEE0,
5295 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5296 				  &mii_control);
5297 		mii_control &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5298 				 MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK|
5299 				 MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX);
5300 
5301 		switch (vars->line_speed) {
5302 		case SPEED_100:
5303 			mii_control |=
5304 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_100;
5305 			break;
5306 		case SPEED_1000:
5307 			mii_control |=
5308 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_1000;
5309 			break;
5310 		case SPEED_10:
5311 			/* There is nothing to set for 10M */
5312 			break;
5313 		default:
5314 			/* Invalid speed for SGMII */
5315 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5316 				  vars->line_speed);
5317 			break;
5318 		}
5319 
5320 		/* Setting the full duplex */
5321 		if (phy->req_duplex == DUPLEX_FULL)
5322 			mii_control |=
5323 				MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5324 		CL22_WR_OVER_CL45(bp, phy,
5325 				  MDIO_REG_BANK_COMBO_IEEE0,
5326 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5327 				  mii_control);
5328 
5329 	} else { /* AN mode */
5330 		/* Enable and restart AN */
5331 		bnx2x_restart_autoneg(phy, params, 0);
5332 	}
5333 }
5334 
5335 /* Link management
5336  */
bnx2x_direct_parallel_detect_used(struct bnx2x_phy * phy,struct link_params * params)5337 static int bnx2x_direct_parallel_detect_used(struct bnx2x_phy *phy,
5338 					     struct link_params *params)
5339 {
5340 	struct bnx2x *bp = params->bp;
5341 	u16 pd_10g, status2_1000x;
5342 	if (phy->req_line_speed != SPEED_AUTO_NEG)
5343 		return 0;
5344 	CL22_RD_OVER_CL45(bp, phy,
5345 			  MDIO_REG_BANK_SERDES_DIGITAL,
5346 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5347 			  &status2_1000x);
5348 	CL22_RD_OVER_CL45(bp, phy,
5349 			  MDIO_REG_BANK_SERDES_DIGITAL,
5350 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5351 			  &status2_1000x);
5352 	if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) {
5353 		DP(NETIF_MSG_LINK, "1G parallel detect link on port %d\n",
5354 			 params->port);
5355 		return 1;
5356 	}
5357 
5358 	CL22_RD_OVER_CL45(bp, phy,
5359 			  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5360 			  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS,
5361 			  &pd_10g);
5362 
5363 	if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) {
5364 		DP(NETIF_MSG_LINK, "10G parallel detect link on port %d\n",
5365 			 params->port);
5366 		return 1;
5367 	}
5368 	return 0;
5369 }
5370 
bnx2x_update_adv_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5371 static void bnx2x_update_adv_fc(struct bnx2x_phy *phy,
5372 				struct link_params *params,
5373 				struct link_vars *vars,
5374 				u32 gp_status)
5375 {
5376 	u16 ld_pause;   /* local driver */
5377 	u16 lp_pause;   /* link partner */
5378 	u16 pause_result;
5379 	struct bnx2x *bp = params->bp;
5380 	if ((gp_status &
5381 	     (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5382 	      MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) ==
5383 	    (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5384 	     MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) {
5385 
5386 		CL22_RD_OVER_CL45(bp, phy,
5387 				  MDIO_REG_BANK_CL73_IEEEB1,
5388 				  MDIO_CL73_IEEEB1_AN_ADV1,
5389 				  &ld_pause);
5390 		CL22_RD_OVER_CL45(bp, phy,
5391 				  MDIO_REG_BANK_CL73_IEEEB1,
5392 				  MDIO_CL73_IEEEB1_AN_LP_ADV1,
5393 				  &lp_pause);
5394 		pause_result = (ld_pause &
5395 				MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK) >> 8;
5396 		pause_result |= (lp_pause &
5397 				 MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK) >> 10;
5398 		DP(NETIF_MSG_LINK, "pause_result CL73 0x%x\n", pause_result);
5399 	} else {
5400 		CL22_RD_OVER_CL45(bp, phy,
5401 				  MDIO_REG_BANK_COMBO_IEEE0,
5402 				  MDIO_COMBO_IEEE0_AUTO_NEG_ADV,
5403 				  &ld_pause);
5404 		CL22_RD_OVER_CL45(bp, phy,
5405 			MDIO_REG_BANK_COMBO_IEEE0,
5406 			MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1,
5407 			&lp_pause);
5408 		pause_result = (ld_pause &
5409 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>5;
5410 		pause_result |= (lp_pause &
5411 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>7;
5412 		DP(NETIF_MSG_LINK, "pause_result CL37 0x%x\n", pause_result);
5413 	}
5414 	bnx2x_pause_resolve(phy, params, vars, pause_result);
5415 
5416 }
5417 
bnx2x_flow_ctrl_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5418 static void bnx2x_flow_ctrl_resolve(struct bnx2x_phy *phy,
5419 				    struct link_params *params,
5420 				    struct link_vars *vars,
5421 				    u32 gp_status)
5422 {
5423 	struct bnx2x *bp = params->bp;
5424 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5425 
5426 	/* Resolve from gp_status in case of AN complete and not sgmii */
5427 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO) {
5428 		/* Update the advertised flow-controled of LD/LP in AN */
5429 		if (phy->req_line_speed == SPEED_AUTO_NEG)
5430 			bnx2x_update_adv_fc(phy, params, vars, gp_status);
5431 		/* But set the flow-control result as the requested one */
5432 		vars->flow_ctrl = phy->req_flow_ctrl;
5433 	} else if (phy->req_line_speed != SPEED_AUTO_NEG)
5434 		vars->flow_ctrl = params->req_fc_auto_adv;
5435 	else if ((gp_status & MDIO_AN_CL73_OR_37_COMPLETE) &&
5436 		 (!(vars->phy_flags & PHY_SGMII_FLAG))) {
5437 		if (bnx2x_direct_parallel_detect_used(phy, params)) {
5438 			vars->flow_ctrl = params->req_fc_auto_adv;
5439 			return;
5440 		}
5441 		bnx2x_update_adv_fc(phy, params, vars, gp_status);
5442 	}
5443 	DP(NETIF_MSG_LINK, "flow_ctrl 0x%x\n", vars->flow_ctrl);
5444 }
5445 
bnx2x_check_fallback_to_cl37(struct bnx2x_phy * phy,struct link_params * params)5446 static void bnx2x_check_fallback_to_cl37(struct bnx2x_phy *phy,
5447 					 struct link_params *params)
5448 {
5449 	struct bnx2x *bp = params->bp;
5450 	u16 rx_status, ustat_val, cl37_fsm_received;
5451 	DP(NETIF_MSG_LINK, "bnx2x_check_fallback_to_cl37\n");
5452 	/* Step 1: Make sure signal is detected */
5453 	CL22_RD_OVER_CL45(bp, phy,
5454 			  MDIO_REG_BANK_RX0,
5455 			  MDIO_RX0_RX_STATUS,
5456 			  &rx_status);
5457 	if ((rx_status & MDIO_RX0_RX_STATUS_SIGDET) !=
5458 	    (MDIO_RX0_RX_STATUS_SIGDET)) {
5459 		DP(NETIF_MSG_LINK, "Signal is not detected. Restoring CL73."
5460 			     "rx_status(0x80b0) = 0x%x\n", rx_status);
5461 		CL22_WR_OVER_CL45(bp, phy,
5462 				  MDIO_REG_BANK_CL73_IEEEB0,
5463 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5464 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN);
5465 		return;
5466 	}
5467 	/* Step 2: Check CL73 state machine */
5468 	CL22_RD_OVER_CL45(bp, phy,
5469 			  MDIO_REG_BANK_CL73_USERB0,
5470 			  MDIO_CL73_USERB0_CL73_USTAT1,
5471 			  &ustat_val);
5472 	if ((ustat_val &
5473 	     (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5474 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) !=
5475 	    (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5476 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) {
5477 		DP(NETIF_MSG_LINK, "CL73 state-machine is not stable. "
5478 			     "ustat_val(0x8371) = 0x%x\n", ustat_val);
5479 		return;
5480 	}
5481 	/* Step 3: Check CL37 Message Pages received to indicate LP
5482 	 * supports only CL37
5483 	 */
5484 	CL22_RD_OVER_CL45(bp, phy,
5485 			  MDIO_REG_BANK_REMOTE_PHY,
5486 			  MDIO_REMOTE_PHY_MISC_RX_STATUS,
5487 			  &cl37_fsm_received);
5488 	if ((cl37_fsm_received &
5489 	     (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5490 	     MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) !=
5491 	    (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5492 	      MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) {
5493 		DP(NETIF_MSG_LINK, "No CL37 FSM were received. "
5494 			     "misc_rx_status(0x8330) = 0x%x\n",
5495 			 cl37_fsm_received);
5496 		return;
5497 	}
5498 	/* The combined cl37/cl73 fsm state information indicating that
5499 	 * we are connected to a device which does not support cl73, but
5500 	 * does support cl37 BAM. In this case we disable cl73 and
5501 	 * restart cl37 auto-neg
5502 	 */
5503 
5504 	/* Disable CL73 */
5505 	CL22_WR_OVER_CL45(bp, phy,
5506 			  MDIO_REG_BANK_CL73_IEEEB0,
5507 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5508 			  0);
5509 	/* Restart CL37 autoneg */
5510 	bnx2x_restart_autoneg(phy, params, 0);
5511 	DP(NETIF_MSG_LINK, "Disabling CL73, and restarting CL37 autoneg\n");
5512 }
5513 
bnx2x_xgxs_an_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5514 static void bnx2x_xgxs_an_resolve(struct bnx2x_phy *phy,
5515 				  struct link_params *params,
5516 				  struct link_vars *vars,
5517 				  u32 gp_status)
5518 {
5519 	if (gp_status & MDIO_AN_CL73_OR_37_COMPLETE)
5520 		vars->link_status |=
5521 			LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5522 
5523 	if (bnx2x_direct_parallel_detect_used(phy, params))
5524 		vars->link_status |=
5525 			LINK_STATUS_PARALLEL_DETECTION_USED;
5526 }
bnx2x_get_link_speed_duplex(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u16 is_link_up,u16 speed_mask,u16 is_duplex)5527 static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
5528 				     struct link_params *params,
5529 				      struct link_vars *vars,
5530 				      u16 is_link_up,
5531 				      u16 speed_mask,
5532 				      u16 is_duplex)
5533 {
5534 	struct bnx2x *bp = params->bp;
5535 	if (phy->req_line_speed == SPEED_AUTO_NEG)
5536 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
5537 	if (is_link_up) {
5538 		DP(NETIF_MSG_LINK, "phy link up\n");
5539 
5540 		vars->phy_link_up = 1;
5541 		vars->link_status |= LINK_STATUS_LINK_UP;
5542 
5543 		switch (speed_mask) {
5544 		case GP_STATUS_10M:
5545 			vars->line_speed = SPEED_10;
5546 			if (is_duplex == DUPLEX_FULL)
5547 				vars->link_status |= LINK_10TFD;
5548 			else
5549 				vars->link_status |= LINK_10THD;
5550 			break;
5551 
5552 		case GP_STATUS_100M:
5553 			vars->line_speed = SPEED_100;
5554 			if (is_duplex == DUPLEX_FULL)
5555 				vars->link_status |= LINK_100TXFD;
5556 			else
5557 				vars->link_status |= LINK_100TXHD;
5558 			break;
5559 
5560 		case GP_STATUS_1G:
5561 		case GP_STATUS_1G_KX:
5562 			vars->line_speed = SPEED_1000;
5563 			if (is_duplex == DUPLEX_FULL)
5564 				vars->link_status |= LINK_1000TFD;
5565 			else
5566 				vars->link_status |= LINK_1000THD;
5567 			break;
5568 
5569 		case GP_STATUS_2_5G:
5570 			vars->line_speed = SPEED_2500;
5571 			if (is_duplex == DUPLEX_FULL)
5572 				vars->link_status |= LINK_2500TFD;
5573 			else
5574 				vars->link_status |= LINK_2500THD;
5575 			break;
5576 
5577 		case GP_STATUS_5G:
5578 		case GP_STATUS_6G:
5579 			DP(NETIF_MSG_LINK,
5580 				 "link speed unsupported  gp_status 0x%x\n",
5581 				  speed_mask);
5582 			return -EINVAL;
5583 
5584 		case GP_STATUS_10G_KX4:
5585 		case GP_STATUS_10G_HIG:
5586 		case GP_STATUS_10G_CX4:
5587 		case GP_STATUS_10G_KR:
5588 		case GP_STATUS_10G_SFI:
5589 		case GP_STATUS_10G_XFI:
5590 			vars->line_speed = SPEED_10000;
5591 			vars->link_status |= LINK_10GTFD;
5592 			break;
5593 		case GP_STATUS_20G_DXGXS:
5594 		case GP_STATUS_20G_KR2:
5595 			vars->line_speed = SPEED_20000;
5596 			vars->link_status |= LINK_20GTFD;
5597 			break;
5598 		default:
5599 			DP(NETIF_MSG_LINK,
5600 				  "link speed unsupported gp_status 0x%x\n",
5601 				  speed_mask);
5602 			return -EINVAL;
5603 		}
5604 	} else { /* link_down */
5605 		DP(NETIF_MSG_LINK, "phy link down\n");
5606 
5607 		vars->phy_link_up = 0;
5608 
5609 		vars->duplex = DUPLEX_FULL;
5610 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5611 		vars->mac_type = MAC_TYPE_NONE;
5612 	}
5613 	DP(NETIF_MSG_LINK, " phy_link_up %x line_speed %d\n",
5614 		    vars->phy_link_up, vars->line_speed);
5615 	return 0;
5616 }
5617 
bnx2x_link_settings_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5618 static u8 bnx2x_link_settings_status(struct bnx2x_phy *phy,
5619 				     struct link_params *params,
5620 				     struct link_vars *vars)
5621 {
5622 	struct bnx2x *bp = params->bp;
5623 
5624 	u16 gp_status, duplex = DUPLEX_HALF, link_up = 0, speed_mask;
5625 	int rc = 0;
5626 
5627 	/* Read gp_status */
5628 	CL22_RD_OVER_CL45(bp, phy,
5629 			  MDIO_REG_BANK_GP_STATUS,
5630 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
5631 			  &gp_status);
5632 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_DUPLEX_STATUS)
5633 		duplex = DUPLEX_FULL;
5634 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS)
5635 		link_up = 1;
5636 	speed_mask = gp_status & GP_STATUS_SPEED_MASK;
5637 	DP(NETIF_MSG_LINK, "gp_status 0x%x, is_link_up %d, speed_mask 0x%x\n",
5638 		       gp_status, link_up, speed_mask);
5639 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, speed_mask,
5640 					 duplex);
5641 	if (rc == -EINVAL)
5642 		return rc;
5643 
5644 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) {
5645 		if (SINGLE_MEDIA_DIRECT(params)) {
5646 			vars->duplex = duplex;
5647 			bnx2x_flow_ctrl_resolve(phy, params, vars, gp_status);
5648 			if (phy->req_line_speed == SPEED_AUTO_NEG)
5649 				bnx2x_xgxs_an_resolve(phy, params, vars,
5650 						      gp_status);
5651 		}
5652 	} else { /* Link_down */
5653 		if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
5654 		    SINGLE_MEDIA_DIRECT(params)) {
5655 			/* Check signal is detected */
5656 			bnx2x_check_fallback_to_cl37(phy, params);
5657 		}
5658 	}
5659 
5660 	/* Read LP advertised speeds*/
5661 	if (SINGLE_MEDIA_DIRECT(params) &&
5662 	    (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)) {
5663 		u16 val;
5664 
5665 		CL22_RD_OVER_CL45(bp, phy, MDIO_REG_BANK_CL73_IEEEB1,
5666 				  MDIO_CL73_IEEEB1_AN_LP_ADV2, &val);
5667 
5668 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
5669 			vars->link_status |=
5670 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
5671 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
5672 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
5673 			vars->link_status |=
5674 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5675 
5676 		CL22_RD_OVER_CL45(bp, phy, MDIO_REG_BANK_OVER_1G,
5677 				  MDIO_OVER_1G_LP_UP1, &val);
5678 
5679 		if (val & MDIO_OVER_1G_UP1_2_5G)
5680 			vars->link_status |=
5681 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
5682 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
5683 			vars->link_status |=
5684 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5685 	}
5686 
5687 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5688 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5689 	return rc;
5690 }
5691 
bnx2x_warpcore_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5692 static u8 bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
5693 				     struct link_params *params,
5694 				     struct link_vars *vars)
5695 {
5696 	struct bnx2x *bp = params->bp;
5697 	u8 lane;
5698 	u16 gp_status1, gp_speed, link_up, duplex = DUPLEX_FULL;
5699 	int rc = 0;
5700 	lane = bnx2x_get_warpcore_lane(phy, params);
5701 	/* Read gp_status */
5702 	if ((params->loopback_mode) &&
5703 	    (phy->flags & FLAGS_WC_DUAL_MODE)) {
5704 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5705 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
5706 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5707 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
5708 		link_up &= 0x1;
5709 	} else if ((phy->req_line_speed > SPEED_10000) &&
5710 		(phy->supported & SUPPORTED_20000baseMLD2_Full)) {
5711 		u16 temp_link_up;
5712 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5713 				1, &temp_link_up);
5714 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5715 				1, &link_up);
5716 		DP(NETIF_MSG_LINK, "PCS RX link status = 0x%x-->0x%x\n",
5717 			       temp_link_up, link_up);
5718 		link_up &= (1<<2);
5719 		if (link_up)
5720 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5721 	} else {
5722 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5723 				MDIO_WC_REG_GP2_STATUS_GP_2_1,
5724 				&gp_status1);
5725 		DP(NETIF_MSG_LINK, "0x81d1 = 0x%x\n", gp_status1);
5726 		/* Check for either KR, 1G, or AN up. */
5727 		link_up = ((gp_status1 >> 8) |
5728 			   (gp_status1 >> 12) |
5729 			   (gp_status1)) &
5730 			(1 << lane);
5731 		if (phy->supported & SUPPORTED_20000baseKR2_Full) {
5732 			u16 an_link;
5733 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5734 					MDIO_AN_REG_STATUS, &an_link);
5735 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5736 					MDIO_AN_REG_STATUS, &an_link);
5737 			link_up |= (an_link & (1<<2));
5738 		}
5739 		if (link_up && SINGLE_MEDIA_DIRECT(params)) {
5740 			u16 pd, gp_status4;
5741 			if (phy->req_line_speed == SPEED_AUTO_NEG) {
5742 				/* Check Autoneg complete */
5743 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5744 						MDIO_WC_REG_GP2_STATUS_GP_2_4,
5745 						&gp_status4);
5746 				if (gp_status4 & ((1<<12)<<lane))
5747 					vars->link_status |=
5748 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5749 
5750 				/* Check parallel detect used */
5751 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5752 						MDIO_WC_REG_PAR_DET_10G_STATUS,
5753 						&pd);
5754 				if (pd & (1<<15))
5755 					vars->link_status |=
5756 					LINK_STATUS_PARALLEL_DETECTION_USED;
5757 			}
5758 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5759 			vars->duplex = duplex;
5760 		}
5761 	}
5762 
5763 	if ((vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) &&
5764 	    SINGLE_MEDIA_DIRECT(params)) {
5765 		u16 val;
5766 
5767 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5768 				MDIO_AN_REG_LP_AUTO_NEG2, &val);
5769 
5770 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
5771 			vars->link_status |=
5772 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
5773 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
5774 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
5775 			vars->link_status |=
5776 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5777 
5778 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5779 				MDIO_WC_REG_DIGITAL3_LP_UP1, &val);
5780 
5781 		if (val & MDIO_OVER_1G_UP1_2_5G)
5782 			vars->link_status |=
5783 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
5784 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
5785 			vars->link_status |=
5786 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5787 
5788 	}
5789 
5790 
5791 	if (lane < 2) {
5792 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5793 				MDIO_WC_REG_GP2_STATUS_GP_2_2, &gp_speed);
5794 	} else {
5795 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5796 				MDIO_WC_REG_GP2_STATUS_GP_2_3, &gp_speed);
5797 	}
5798 	DP(NETIF_MSG_LINK, "lane %d gp_speed 0x%x\n", lane, gp_speed);
5799 
5800 	if ((lane & 1) == 0)
5801 		gp_speed <<= 8;
5802 	gp_speed &= 0x3f00;
5803 	link_up = !!link_up;
5804 
5805 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
5806 					 duplex);
5807 
5808 	/* In case of KR link down, start up the recovering procedure */
5809 	if ((!link_up) && (phy->media_type == ETH_PHY_KR) &&
5810 	    (!(phy->flags & FLAGS_WC_DUAL_MODE)))
5811 		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
5812 
5813 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5814 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5815 	return rc;
5816 }
bnx2x_set_gmii_tx_driver(struct link_params * params)5817 static void bnx2x_set_gmii_tx_driver(struct link_params *params)
5818 {
5819 	struct bnx2x *bp = params->bp;
5820 	struct bnx2x_phy *phy = &params->phy[INT_PHY];
5821 	u16 lp_up2;
5822 	u16 tx_driver;
5823 	u16 bank;
5824 
5825 	/* Read precomp */
5826 	CL22_RD_OVER_CL45(bp, phy,
5827 			  MDIO_REG_BANK_OVER_1G,
5828 			  MDIO_OVER_1G_LP_UP2, &lp_up2);
5829 
5830 	/* Bits [10:7] at lp_up2, positioned at [15:12] */
5831 	lp_up2 = (((lp_up2 & MDIO_OVER_1G_LP_UP2_PREEMPHASIS_MASK) >>
5832 		   MDIO_OVER_1G_LP_UP2_PREEMPHASIS_SHIFT) <<
5833 		  MDIO_TX0_TX_DRIVER_PREEMPHASIS_SHIFT);
5834 
5835 	if (lp_up2 == 0)
5836 		return;
5837 
5838 	for (bank = MDIO_REG_BANK_TX0; bank <= MDIO_REG_BANK_TX3;
5839 	      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0)) {
5840 		CL22_RD_OVER_CL45(bp, phy,
5841 				  bank,
5842 				  MDIO_TX0_TX_DRIVER, &tx_driver);
5843 
5844 		/* Replace tx_driver bits [15:12] */
5845 		if (lp_up2 !=
5846 		    (tx_driver & MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK)) {
5847 			tx_driver &= ~MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK;
5848 			tx_driver |= lp_up2;
5849 			CL22_WR_OVER_CL45(bp, phy,
5850 					  bank,
5851 					  MDIO_TX0_TX_DRIVER, tx_driver);
5852 		}
5853 	}
5854 }
5855 
bnx2x_emac_program(struct link_params * params,struct link_vars * vars)5856 static int bnx2x_emac_program(struct link_params *params,
5857 			      struct link_vars *vars)
5858 {
5859 	struct bnx2x *bp = params->bp;
5860 	u8 port = params->port;
5861 	u16 mode = 0;
5862 
5863 	DP(NETIF_MSG_LINK, "setting link speed & duplex\n");
5864 	bnx2x_bits_dis(bp, GRCBASE_EMAC0 + port*0x400 +
5865 		       EMAC_REG_EMAC_MODE,
5866 		       (EMAC_MODE_25G_MODE |
5867 			EMAC_MODE_PORT_MII_10M |
5868 			EMAC_MODE_HALF_DUPLEX));
5869 	switch (vars->line_speed) {
5870 	case SPEED_10:
5871 		mode |= EMAC_MODE_PORT_MII_10M;
5872 		break;
5873 
5874 	case SPEED_100:
5875 		mode |= EMAC_MODE_PORT_MII;
5876 		break;
5877 
5878 	case SPEED_1000:
5879 		mode |= EMAC_MODE_PORT_GMII;
5880 		break;
5881 
5882 	case SPEED_2500:
5883 		mode |= (EMAC_MODE_25G_MODE | EMAC_MODE_PORT_GMII);
5884 		break;
5885 
5886 	default:
5887 		/* 10G not valid for EMAC */
5888 		DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5889 			   vars->line_speed);
5890 		return -EINVAL;
5891 	}
5892 
5893 	if (vars->duplex == DUPLEX_HALF)
5894 		mode |= EMAC_MODE_HALF_DUPLEX;
5895 	bnx2x_bits_en(bp,
5896 		      GRCBASE_EMAC0 + port*0x400 + EMAC_REG_EMAC_MODE,
5897 		      mode);
5898 
5899 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
5900 	return 0;
5901 }
5902 
bnx2x_set_preemphasis(struct bnx2x_phy * phy,struct link_params * params)5903 static void bnx2x_set_preemphasis(struct bnx2x_phy *phy,
5904 				  struct link_params *params)
5905 {
5906 
5907 	u16 bank, i = 0;
5908 	struct bnx2x *bp = params->bp;
5909 
5910 	for (bank = MDIO_REG_BANK_RX0, i = 0; bank <= MDIO_REG_BANK_RX3;
5911 	      bank += (MDIO_REG_BANK_RX1-MDIO_REG_BANK_RX0), i++) {
5912 			CL22_WR_OVER_CL45(bp, phy,
5913 					  bank,
5914 					  MDIO_RX0_RX_EQ_BOOST,
5915 					  phy->rx_preemphasis[i]);
5916 	}
5917 
5918 	for (bank = MDIO_REG_BANK_TX0, i = 0; bank <= MDIO_REG_BANK_TX3;
5919 		      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0), i++) {
5920 			CL22_WR_OVER_CL45(bp, phy,
5921 					  bank,
5922 					  MDIO_TX0_TX_DRIVER,
5923 					  phy->tx_preemphasis[i]);
5924 	}
5925 }
5926 
bnx2x_xgxs_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5927 static void bnx2x_xgxs_config_init(struct bnx2x_phy *phy,
5928 				   struct link_params *params,
5929 				   struct link_vars *vars)
5930 {
5931 	struct bnx2x *bp = params->bp;
5932 	u8 enable_cl73 = (SINGLE_MEDIA_DIRECT(params) ||
5933 			  (params->loopback_mode == LOOPBACK_XGXS));
5934 	if (!(vars->phy_flags & PHY_SGMII_FLAG)) {
5935 		if (SINGLE_MEDIA_DIRECT(params) &&
5936 		    (params->feature_config_flags &
5937 		     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED))
5938 			bnx2x_set_preemphasis(phy, params);
5939 
5940 		/* Forced speed requested? */
5941 		if (vars->line_speed != SPEED_AUTO_NEG ||
5942 		    (SINGLE_MEDIA_DIRECT(params) &&
5943 		     params->loopback_mode == LOOPBACK_EXT)) {
5944 			DP(NETIF_MSG_LINK, "not SGMII, no AN\n");
5945 
5946 			/* Disable autoneg */
5947 			bnx2x_set_autoneg(phy, params, vars, 0);
5948 
5949 			/* Program speed and duplex */
5950 			bnx2x_program_serdes(phy, params, vars);
5951 
5952 		} else { /* AN_mode */
5953 			DP(NETIF_MSG_LINK, "not SGMII, AN\n");
5954 
5955 			/* AN enabled */
5956 			bnx2x_set_brcm_cl37_advertisement(phy, params);
5957 
5958 			/* Program duplex & pause advertisement (for aneg) */
5959 			bnx2x_set_ieee_aneg_advertisement(phy, params,
5960 							  vars->ieee_fc);
5961 
5962 			/* Enable autoneg */
5963 			bnx2x_set_autoneg(phy, params, vars, enable_cl73);
5964 
5965 			/* Enable and restart AN */
5966 			bnx2x_restart_autoneg(phy, params, enable_cl73);
5967 		}
5968 
5969 	} else { /* SGMII mode */
5970 		DP(NETIF_MSG_LINK, "SGMII\n");
5971 
5972 		bnx2x_initialize_sgmii_process(phy, params, vars);
5973 	}
5974 }
5975 
bnx2x_prepare_xgxs(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5976 static int bnx2x_prepare_xgxs(struct bnx2x_phy *phy,
5977 			  struct link_params *params,
5978 			  struct link_vars *vars)
5979 {
5980 	int rc;
5981 	vars->phy_flags |= PHY_XGXS_FLAG;
5982 	if ((phy->req_line_speed &&
5983 	     ((phy->req_line_speed == SPEED_100) ||
5984 	      (phy->req_line_speed == SPEED_10))) ||
5985 	    (!phy->req_line_speed &&
5986 	     (phy->speed_cap_mask >=
5987 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
5988 	     (phy->speed_cap_mask <
5989 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
5990 	    (phy->type == PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT_SD))
5991 		vars->phy_flags |= PHY_SGMII_FLAG;
5992 	else
5993 		vars->phy_flags &= ~PHY_SGMII_FLAG;
5994 
5995 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
5996 	bnx2x_set_aer_mmd(params, phy);
5997 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
5998 		bnx2x_set_master_ln(params, phy);
5999 
6000 	rc = bnx2x_reset_unicore(params, phy, 0);
6001 	/* Reset the SerDes and wait for reset bit return low */
6002 	if (rc)
6003 		return rc;
6004 
6005 	bnx2x_set_aer_mmd(params, phy);
6006 	/* Setting the masterLn_def again after the reset */
6007 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) {
6008 		bnx2x_set_master_ln(params, phy);
6009 		bnx2x_set_swap_lanes(params, phy);
6010 	}
6011 
6012 	return rc;
6013 }
6014 
bnx2x_wait_reset_complete(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_params * params)6015 static u16 bnx2x_wait_reset_complete(struct bnx2x *bp,
6016 				     struct bnx2x_phy *phy,
6017 				     struct link_params *params)
6018 {
6019 	u16 cnt, ctrl;
6020 	/* Wait for soft reset to get cleared up to 1 sec */
6021 	for (cnt = 0; cnt < 1000; cnt++) {
6022 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
6023 			bnx2x_cl22_read(bp, phy,
6024 				MDIO_PMA_REG_CTRL, &ctrl);
6025 		else
6026 			bnx2x_cl45_read(bp, phy,
6027 				MDIO_PMA_DEVAD,
6028 				MDIO_PMA_REG_CTRL, &ctrl);
6029 		if (!(ctrl & (1<<15)))
6030 			break;
6031 		usleep_range(1000, 2000);
6032 	}
6033 
6034 	if (cnt == 1000)
6035 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
6036 				      " Port %d\n",
6037 			 params->port);
6038 	DP(NETIF_MSG_LINK, "control reg 0x%x (after %d ms)\n", ctrl, cnt);
6039 	return cnt;
6040 }
6041 
bnx2x_link_int_enable(struct link_params * params)6042 static void bnx2x_link_int_enable(struct link_params *params)
6043 {
6044 	u8 port = params->port;
6045 	u32 mask;
6046 	struct bnx2x *bp = params->bp;
6047 
6048 	/* Setting the status to report on link up for either XGXS or SerDes */
6049 	if (CHIP_IS_E3(bp)) {
6050 		mask = NIG_MASK_XGXS0_LINK_STATUS;
6051 		if (!(SINGLE_MEDIA_DIRECT(params)))
6052 			mask |= NIG_MASK_MI_INT;
6053 	} else if (params->switch_cfg == SWITCH_CFG_10G) {
6054 		mask = (NIG_MASK_XGXS0_LINK10G |
6055 			NIG_MASK_XGXS0_LINK_STATUS);
6056 		DP(NETIF_MSG_LINK, "enabled XGXS interrupt\n");
6057 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
6058 			params->phy[INT_PHY].type !=
6059 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) {
6060 			mask |= NIG_MASK_MI_INT;
6061 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
6062 		}
6063 
6064 	} else { /* SerDes */
6065 		mask = NIG_MASK_SERDES0_LINK_STATUS;
6066 		DP(NETIF_MSG_LINK, "enabled SerDes interrupt\n");
6067 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
6068 			params->phy[INT_PHY].type !=
6069 				PORT_HW_CFG_SERDES_EXT_PHY_TYPE_NOT_CONN) {
6070 			mask |= NIG_MASK_MI_INT;
6071 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
6072 		}
6073 	}
6074 	bnx2x_bits_en(bp,
6075 		      NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
6076 		      mask);
6077 
6078 	DP(NETIF_MSG_LINK, "port %x, is_xgxs %x, int_status 0x%x\n", port,
6079 		 (params->switch_cfg == SWITCH_CFG_10G),
6080 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6081 	DP(NETIF_MSG_LINK, " int_mask 0x%x, MI_INT %x, SERDES_LINK %x\n",
6082 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6083 		 REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT + port*0x18),
6084 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS+port*0x3c));
6085 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
6086 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6087 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6088 }
6089 
bnx2x_rearm_latch_signal(struct bnx2x * bp,u8 port,u8 exp_mi_int)6090 static void bnx2x_rearm_latch_signal(struct bnx2x *bp, u8 port,
6091 				     u8 exp_mi_int)
6092 {
6093 	u32 latch_status = 0;
6094 
6095 	/* Disable the MI INT ( external phy int ) by writing 1 to the
6096 	 * status register. Link down indication is high-active-signal,
6097 	 * so in this case we need to write the status to clear the XOR
6098 	 */
6099 	/* Read Latched signals */
6100 	latch_status = REG_RD(bp,
6101 				    NIG_REG_LATCH_STATUS_0 + port*8);
6102 	DP(NETIF_MSG_LINK, "latch_status = 0x%x\n", latch_status);
6103 	/* Handle only those with latched-signal=up.*/
6104 	if (exp_mi_int)
6105 		bnx2x_bits_en(bp,
6106 			      NIG_REG_STATUS_INTERRUPT_PORT0
6107 			      + port*4,
6108 			      NIG_STATUS_EMAC0_MI_INT);
6109 	else
6110 		bnx2x_bits_dis(bp,
6111 			       NIG_REG_STATUS_INTERRUPT_PORT0
6112 			       + port*4,
6113 			       NIG_STATUS_EMAC0_MI_INT);
6114 
6115 	if (latch_status & 1) {
6116 
6117 		/* For all latched-signal=up : Re-Arm Latch signals */
6118 		REG_WR(bp, NIG_REG_LATCH_STATUS_0 + port*8,
6119 		       (latch_status & 0xfffe) | (latch_status & 1));
6120 	}
6121 	/* For all latched-signal=up,Write original_signal to status */
6122 }
6123 
bnx2x_link_int_ack(struct link_params * params,struct link_vars * vars,u8 is_10g_plus)6124 static void bnx2x_link_int_ack(struct link_params *params,
6125 			       struct link_vars *vars, u8 is_10g_plus)
6126 {
6127 	struct bnx2x *bp = params->bp;
6128 	u8 port = params->port;
6129 	u32 mask;
6130 	/* First reset all status we assume only one line will be
6131 	 * change at a time
6132 	 */
6133 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6134 		       (NIG_STATUS_XGXS0_LINK10G |
6135 			NIG_STATUS_XGXS0_LINK_STATUS |
6136 			NIG_STATUS_SERDES0_LINK_STATUS));
6137 	if (vars->phy_link_up) {
6138 		if (USES_WARPCORE(bp))
6139 			mask = NIG_STATUS_XGXS0_LINK_STATUS;
6140 		else {
6141 			if (is_10g_plus)
6142 				mask = NIG_STATUS_XGXS0_LINK10G;
6143 			else if (params->switch_cfg == SWITCH_CFG_10G) {
6144 				/* Disable the link interrupt by writing 1 to
6145 				 * the relevant lane in the status register
6146 				 */
6147 				u32 ser_lane =
6148 					((params->lane_config &
6149 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
6150 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
6151 				mask = ((1 << ser_lane) <<
6152 				       NIG_STATUS_XGXS0_LINK_STATUS_SIZE);
6153 			} else
6154 				mask = NIG_STATUS_SERDES0_LINK_STATUS;
6155 		}
6156 		DP(NETIF_MSG_LINK, "Ack link up interrupt with mask 0x%x\n",
6157 			       mask);
6158 		bnx2x_bits_en(bp,
6159 			      NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6160 			      mask);
6161 	}
6162 }
6163 
bnx2x_null_format_ver(u32 spirom_ver,u8 * str,u16 * len)6164 static int bnx2x_null_format_ver(u32 spirom_ver, u8 *str, u16 *len)
6165 {
6166 	str[0] = '\0';
6167 	(*len)--;
6168 	return 0;
6169 }
6170 
bnx2x_format_ver(u32 num,u8 * str,u16 * len)6171 static int bnx2x_format_ver(u32 num, u8 *str, u16 *len)
6172 {
6173 	u16 ret;
6174 
6175 	if (*len < 10) {
6176 		/* Need more than 10chars for this format */
6177 		bnx2x_null_format_ver(num, str, len);
6178 		return -EINVAL;
6179 	}
6180 
6181 	ret = scnprintf(str, *len, "%x.%x", (num >> 16) & 0xFFFF,
6182 			num & 0xFFFF);
6183 	*len -= ret;
6184 	return 0;
6185 }
6186 
bnx2x_3_seq_format_ver(u32 num,u8 * str,u16 * len)6187 static int bnx2x_3_seq_format_ver(u32 num, u8 *str, u16 *len)
6188 {
6189 	u16 ret;
6190 
6191 	if (*len < 10) {
6192 		/* Need more than 10chars for this format */
6193 		bnx2x_null_format_ver(num, str, len);
6194 		return -EINVAL;
6195 	}
6196 
6197 	ret = scnprintf(str, *len, "%x.%x.%x", (num >> 16) & 0xFF,
6198 			(num >> 8) & 0xFF, num & 0xFF);
6199 	*len -= ret;
6200 	return 0;
6201 }
6202 
bnx2x_get_ext_phy_fw_version(struct link_params * params,u8 * version,u16 len)6203 int bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 *version,
6204 				 u16 len)
6205 {
6206 	struct bnx2x *bp;
6207 	u32 spirom_ver = 0;
6208 	int status = 0;
6209 	u8 *ver_p = version;
6210 	u16 remain_len = len;
6211 	if (version == NULL || params == NULL)
6212 		return -EINVAL;
6213 	bp = params->bp;
6214 
6215 	/* Extract first external phy*/
6216 	version[0] = '\0';
6217 	spirom_ver = REG_RD(bp, params->phy[EXT_PHY1].ver_addr);
6218 
6219 	if (params->phy[EXT_PHY1].format_fw_ver) {
6220 		status |= params->phy[EXT_PHY1].format_fw_ver(spirom_ver,
6221 							      ver_p,
6222 							      &remain_len);
6223 		ver_p += (len - remain_len);
6224 	}
6225 	if ((params->num_phys == MAX_PHYS) &&
6226 	    (params->phy[EXT_PHY2].ver_addr != 0)) {
6227 		spirom_ver = REG_RD(bp, params->phy[EXT_PHY2].ver_addr);
6228 		if (params->phy[EXT_PHY2].format_fw_ver) {
6229 			*ver_p = '/';
6230 			ver_p++;
6231 			remain_len--;
6232 			status |= params->phy[EXT_PHY2].format_fw_ver(
6233 				spirom_ver,
6234 				ver_p,
6235 				&remain_len);
6236 			ver_p = version + (len - remain_len);
6237 		}
6238 	}
6239 	*ver_p = '\0';
6240 	return status;
6241 }
6242 
bnx2x_set_xgxs_loopback(struct bnx2x_phy * phy,struct link_params * params)6243 static void bnx2x_set_xgxs_loopback(struct bnx2x_phy *phy,
6244 				    struct link_params *params)
6245 {
6246 	u8 port = params->port;
6247 	struct bnx2x *bp = params->bp;
6248 
6249 	if (phy->req_line_speed != SPEED_1000) {
6250 		u32 md_devad = 0;
6251 
6252 		DP(NETIF_MSG_LINK, "XGXS 10G loopback enable\n");
6253 
6254 		if (!CHIP_IS_E3(bp)) {
6255 			/* Change the uni_phy_addr in the nig */
6256 			md_devad = REG_RD(bp, (NIG_REG_XGXS0_CTRL_MD_DEVAD +
6257 					       port*0x18));
6258 
6259 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6260 			       0x5);
6261 		}
6262 
6263 		bnx2x_cl45_write(bp, phy,
6264 				 5,
6265 				 (MDIO_REG_BANK_AER_BLOCK +
6266 				  (MDIO_AER_BLOCK_AER_REG & 0xf)),
6267 				 0x2800);
6268 
6269 		bnx2x_cl45_write(bp, phy,
6270 				 5,
6271 				 (MDIO_REG_BANK_CL73_IEEEB0 +
6272 				  (MDIO_CL73_IEEEB0_CL73_AN_CONTROL & 0xf)),
6273 				 0x6041);
6274 		msleep(200);
6275 		/* Set aer mmd back */
6276 		bnx2x_set_aer_mmd(params, phy);
6277 
6278 		if (!CHIP_IS_E3(bp)) {
6279 			/* And md_devad */
6280 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6281 			       md_devad);
6282 		}
6283 	} else {
6284 		u16 mii_ctrl;
6285 		DP(NETIF_MSG_LINK, "XGXS 1G loopback enable\n");
6286 		bnx2x_cl45_read(bp, phy, 5,
6287 				(MDIO_REG_BANK_COMBO_IEEE0 +
6288 				(MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6289 				&mii_ctrl);
6290 		bnx2x_cl45_write(bp, phy, 5,
6291 				 (MDIO_REG_BANK_COMBO_IEEE0 +
6292 				 (MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6293 				 mii_ctrl |
6294 				 MDIO_COMBO_IEEO_MII_CONTROL_LOOPBACK);
6295 	}
6296 }
6297 
bnx2x_set_led(struct link_params * params,struct link_vars * vars,u8 mode,u32 speed)6298 int bnx2x_set_led(struct link_params *params,
6299 		  struct link_vars *vars, u8 mode, u32 speed)
6300 {
6301 	u8 port = params->port;
6302 	u16 hw_led_mode = params->hw_led_mode;
6303 	int rc = 0;
6304 	u8 phy_idx;
6305 	u32 tmp;
6306 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
6307 	struct bnx2x *bp = params->bp;
6308 	DP(NETIF_MSG_LINK, "bnx2x_set_led: port %x, mode %d\n", port, mode);
6309 	DP(NETIF_MSG_LINK, "speed 0x%x, hw_led_mode 0x%x\n",
6310 		 speed, hw_led_mode);
6311 	/* In case */
6312 	for (phy_idx = EXT_PHY1; phy_idx < MAX_PHYS; phy_idx++) {
6313 		if (params->phy[phy_idx].set_link_led) {
6314 			params->phy[phy_idx].set_link_led(
6315 				&params->phy[phy_idx], params, mode);
6316 		}
6317 	}
6318 
6319 	switch (mode) {
6320 	case LED_MODE_FRONT_PANEL_OFF:
6321 	case LED_MODE_OFF:
6322 		REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 0);
6323 		REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6324 		       SHARED_HW_CFG_LED_MAC1);
6325 
6326 		tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6327 		if (params->phy[EXT_PHY1].type ==
6328 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
6329 			tmp &= ~(EMAC_LED_1000MB_OVERRIDE |
6330 				EMAC_LED_100MB_OVERRIDE |
6331 				EMAC_LED_10MB_OVERRIDE);
6332 		else
6333 			tmp |= EMAC_LED_OVERRIDE;
6334 
6335 		EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp);
6336 		break;
6337 
6338 	case LED_MODE_OPER:
6339 		/* For all other phys, OPER mode is same as ON, so in case
6340 		 * link is down, do nothing
6341 		 */
6342 		if (!vars->link_up)
6343 			break;
6344 		fallthrough;
6345 	case LED_MODE_ON:
6346 		if (((params->phy[EXT_PHY1].type ==
6347 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727) ||
6348 			 (params->phy[EXT_PHY1].type ==
6349 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722)) &&
6350 		    CHIP_IS_E2(bp) && params->num_phys == 2) {
6351 			/* This is a work-around for E2+8727 Configurations */
6352 			if (mode == LED_MODE_ON ||
6353 				speed == SPEED_10000){
6354 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6355 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6356 
6357 				tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6358 				EMAC_WR(bp, EMAC_REG_EMAC_LED,
6359 					(tmp | EMAC_LED_OVERRIDE));
6360 				/* Return here without enabling traffic
6361 				 * LED blink and setting rate in ON mode.
6362 				 * In oper mode, enabling LED blink
6363 				 * and setting rate is needed.
6364 				 */
6365 				if (mode == LED_MODE_ON)
6366 					return rc;
6367 			}
6368 		} else if (SINGLE_MEDIA_DIRECT(params)) {
6369 			/* This is a work-around for HW issue found when link
6370 			 * is up in CL73
6371 			 */
6372 			if ((!CHIP_IS_E3(bp)) ||
6373 			    (CHIP_IS_E3(bp) &&
6374 			     mode == LED_MODE_ON))
6375 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6376 
6377 			if (CHIP_IS_E1x(bp) ||
6378 			    CHIP_IS_E2(bp) ||
6379 			    (mode == LED_MODE_ON))
6380 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6381 			else
6382 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6383 				       hw_led_mode);
6384 		} else if ((params->phy[EXT_PHY1].type ==
6385 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) &&
6386 			   (mode == LED_MODE_ON)) {
6387 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6388 			tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6389 			EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp |
6390 				EMAC_LED_OVERRIDE | EMAC_LED_1000MB_OVERRIDE);
6391 			/* Break here; otherwise, it'll disable the
6392 			 * intended override.
6393 			 */
6394 			break;
6395 		} else {
6396 			u32 nig_led_mode = ((params->hw_led_mode <<
6397 					     SHARED_HW_CFG_LED_MODE_SHIFT) ==
6398 					    SHARED_HW_CFG_LED_EXTPHY2) ?
6399 				(SHARED_HW_CFG_LED_PHY1 >>
6400 				 SHARED_HW_CFG_LED_MODE_SHIFT) : hw_led_mode;
6401 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6402 			       nig_led_mode);
6403 		}
6404 
6405 		REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0);
6406 		/* Set blinking rate to ~15.9Hz */
6407 		if (CHIP_IS_E3(bp))
6408 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6409 			       LED_BLINK_RATE_VAL_E3);
6410 		else
6411 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6412 			       LED_BLINK_RATE_VAL_E1X_E2);
6413 		REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_ENA_P0 +
6414 		       port*4, 1);
6415 		tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6416 		EMAC_WR(bp, EMAC_REG_EMAC_LED,
6417 			(tmp & (~EMAC_LED_OVERRIDE)));
6418 
6419 		if (CHIP_IS_E1(bp) &&
6420 		    ((speed == SPEED_2500) ||
6421 		     (speed == SPEED_1000) ||
6422 		     (speed == SPEED_100) ||
6423 		     (speed == SPEED_10))) {
6424 			/* For speeds less than 10G LED scheme is different */
6425 			REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0
6426 			       + port*4, 1);
6427 			REG_WR(bp, NIG_REG_LED_CONTROL_TRAFFIC_P0 +
6428 			       port*4, 0);
6429 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_TRAFFIC_P0 +
6430 			       port*4, 1);
6431 		}
6432 		break;
6433 
6434 	default:
6435 		rc = -EINVAL;
6436 		DP(NETIF_MSG_LINK, "bnx2x_set_led: Invalid led mode %d\n",
6437 			 mode);
6438 		break;
6439 	}
6440 	return rc;
6441 
6442 }
6443 
6444 /* This function comes to reflect the actual link state read DIRECTLY from the
6445  * HW
6446  */
bnx2x_test_link(struct link_params * params,struct link_vars * vars,u8 is_serdes)6447 int bnx2x_test_link(struct link_params *params, struct link_vars *vars,
6448 		    u8 is_serdes)
6449 {
6450 	struct bnx2x *bp = params->bp;
6451 	u16 gp_status = 0, phy_index = 0;
6452 	u8 ext_phy_link_up = 0, serdes_phy_type;
6453 	struct link_vars temp_vars;
6454 	struct bnx2x_phy *int_phy = &params->phy[INT_PHY];
6455 
6456 	if (CHIP_IS_E3(bp)) {
6457 		u16 link_up;
6458 		if (params->req_line_speed[LINK_CONFIG_IDX(INT_PHY)]
6459 		    > SPEED_10000) {
6460 			/* Check 20G link */
6461 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6462 					1, &link_up);
6463 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6464 					1, &link_up);
6465 			link_up &= (1<<2);
6466 		} else {
6467 			/* Check 10G link and below*/
6468 			u8 lane = bnx2x_get_warpcore_lane(int_phy, params);
6469 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6470 					MDIO_WC_REG_GP2_STATUS_GP_2_1,
6471 					&gp_status);
6472 			gp_status = ((gp_status >> 8) & 0xf) |
6473 				((gp_status >> 12) & 0xf);
6474 			link_up = gp_status & (1 << lane);
6475 		}
6476 		if (!link_up)
6477 			return -ESRCH;
6478 	} else {
6479 		CL22_RD_OVER_CL45(bp, int_phy,
6480 			  MDIO_REG_BANK_GP_STATUS,
6481 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
6482 			  &gp_status);
6483 		/* Link is up only if both local phy and external phy are up */
6484 		if (!(gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS))
6485 			return -ESRCH;
6486 	}
6487 	/* In XGXS loopback mode, do not check external PHY */
6488 	if (params->loopback_mode == LOOPBACK_XGXS)
6489 		return 0;
6490 
6491 	switch (params->num_phys) {
6492 	case 1:
6493 		/* No external PHY */
6494 		return 0;
6495 	case 2:
6496 		ext_phy_link_up = params->phy[EXT_PHY1].read_status(
6497 			&params->phy[EXT_PHY1],
6498 			params, &temp_vars);
6499 		break;
6500 	case 3: /* Dual Media */
6501 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6502 		      phy_index++) {
6503 			serdes_phy_type = ((params->phy[phy_index].media_type ==
6504 					    ETH_PHY_SFPP_10G_FIBER) ||
6505 					   (params->phy[phy_index].media_type ==
6506 					    ETH_PHY_SFP_1G_FIBER) ||
6507 					   (params->phy[phy_index].media_type ==
6508 					    ETH_PHY_XFP_FIBER) ||
6509 					   (params->phy[phy_index].media_type ==
6510 					    ETH_PHY_DA_TWINAX));
6511 
6512 			if (is_serdes != serdes_phy_type)
6513 				continue;
6514 			if (params->phy[phy_index].read_status) {
6515 				ext_phy_link_up |=
6516 					params->phy[phy_index].read_status(
6517 						&params->phy[phy_index],
6518 						params, &temp_vars);
6519 			}
6520 		}
6521 		break;
6522 	}
6523 	if (ext_phy_link_up)
6524 		return 0;
6525 	return -ESRCH;
6526 }
6527 
bnx2x_link_initialize(struct link_params * params,struct link_vars * vars)6528 static int bnx2x_link_initialize(struct link_params *params,
6529 				 struct link_vars *vars)
6530 {
6531 	u8 phy_index, non_ext_phy;
6532 	struct bnx2x *bp = params->bp;
6533 	/* In case of external phy existence, the line speed would be the
6534 	 * line speed linked up by the external phy. In case it is direct
6535 	 * only, then the line_speed during initialization will be
6536 	 * equal to the req_line_speed
6537 	 */
6538 	vars->line_speed = params->phy[INT_PHY].req_line_speed;
6539 
6540 	/* Initialize the internal phy in case this is a direct board
6541 	 * (no external phys), or this board has external phy which requires
6542 	 * to first.
6543 	 */
6544 	if (!USES_WARPCORE(bp))
6545 		bnx2x_prepare_xgxs(&params->phy[INT_PHY], params, vars);
6546 	/* init ext phy and enable link state int */
6547 	non_ext_phy = (SINGLE_MEDIA_DIRECT(params) ||
6548 		       (params->loopback_mode == LOOPBACK_XGXS));
6549 
6550 	if (non_ext_phy ||
6551 	    (params->phy[EXT_PHY1].flags & FLAGS_INIT_XGXS_FIRST) ||
6552 	    (params->loopback_mode == LOOPBACK_EXT_PHY)) {
6553 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
6554 		if (vars->line_speed == SPEED_AUTO_NEG &&
6555 		    (CHIP_IS_E1x(bp) ||
6556 		     CHIP_IS_E2(bp)))
6557 			bnx2x_set_parallel_detection(phy, params);
6558 		if (params->phy[INT_PHY].config_init)
6559 			params->phy[INT_PHY].config_init(phy, params, vars);
6560 	}
6561 
6562 	/* Re-read this value in case it was changed inside config_init due to
6563 	 * limitations of optic module
6564 	 */
6565 	vars->line_speed = params->phy[INT_PHY].req_line_speed;
6566 
6567 	/* Init external phy*/
6568 	if (non_ext_phy) {
6569 		if (params->phy[INT_PHY].supported &
6570 		    SUPPORTED_FIBRE)
6571 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6572 	} else {
6573 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6574 		      phy_index++) {
6575 			/* No need to initialize second phy in case of first
6576 			 * phy only selection. In case of second phy, we do
6577 			 * need to initialize the first phy, since they are
6578 			 * connected.
6579 			 */
6580 			if (params->phy[phy_index].supported &
6581 			    SUPPORTED_FIBRE)
6582 				vars->link_status |= LINK_STATUS_SERDES_LINK;
6583 
6584 			if (phy_index == EXT_PHY2 &&
6585 			    (bnx2x_phy_selection(params) ==
6586 			     PORT_HW_CFG_PHY_SELECTION_FIRST_PHY)) {
6587 				DP(NETIF_MSG_LINK,
6588 				   "Not initializing second phy\n");
6589 				continue;
6590 			}
6591 			params->phy[phy_index].config_init(
6592 				&params->phy[phy_index],
6593 				params, vars);
6594 		}
6595 	}
6596 	/* Reset the interrupt indication after phy was initialized */
6597 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 +
6598 		       params->port*4,
6599 		       (NIG_STATUS_XGXS0_LINK10G |
6600 			NIG_STATUS_XGXS0_LINK_STATUS |
6601 			NIG_STATUS_SERDES0_LINK_STATUS |
6602 			NIG_MASK_MI_INT));
6603 	return 0;
6604 }
6605 
bnx2x_int_link_reset(struct bnx2x_phy * phy,struct link_params * params)6606 static void bnx2x_int_link_reset(struct bnx2x_phy *phy,
6607 				 struct link_params *params)
6608 {
6609 	/* Reset the SerDes/XGXS */
6610 	REG_WR(params->bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR,
6611 	       (0x1ff << (params->port*16)));
6612 }
6613 
bnx2x_common_ext_link_reset(struct bnx2x_phy * phy,struct link_params * params)6614 static void bnx2x_common_ext_link_reset(struct bnx2x_phy *phy,
6615 					struct link_params *params)
6616 {
6617 	struct bnx2x *bp = params->bp;
6618 	u8 gpio_port;
6619 	/* HW reset */
6620 	if (CHIP_IS_E2(bp))
6621 		gpio_port = BP_PATH(bp);
6622 	else
6623 		gpio_port = params->port;
6624 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6625 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6626 		       gpio_port);
6627 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
6628 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6629 		       gpio_port);
6630 	DP(NETIF_MSG_LINK, "reset external PHY\n");
6631 }
6632 
bnx2x_update_link_down(struct link_params * params,struct link_vars * vars)6633 static int bnx2x_update_link_down(struct link_params *params,
6634 				  struct link_vars *vars)
6635 {
6636 	struct bnx2x *bp = params->bp;
6637 	u8 port = params->port;
6638 
6639 	DP(NETIF_MSG_LINK, "Port %x: Link is down\n", port);
6640 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
6641 	vars->phy_flags &= ~PHY_PHYSICAL_LINK_FLAG;
6642 	/* Indicate no mac active */
6643 	vars->mac_type = MAC_TYPE_NONE;
6644 
6645 	/* Update shared memory */
6646 	vars->link_status &= ~LINK_UPDATE_MASK;
6647 	vars->line_speed = 0;
6648 	bnx2x_update_mng(params, vars->link_status);
6649 
6650 	/* Activate nig drain */
6651 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
6652 
6653 	/* Disable emac */
6654 	if (!CHIP_IS_E3(bp))
6655 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6656 
6657 	usleep_range(10000, 20000);
6658 	/* Reset BigMac/Xmac */
6659 	if (CHIP_IS_E1x(bp) ||
6660 	    CHIP_IS_E2(bp))
6661 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
6662 
6663 	if (CHIP_IS_E3(bp)) {
6664 		/* Prevent LPI Generation by chip */
6665 		REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2),
6666 		       0);
6667 		REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 + (params->port << 2),
6668 		       0);
6669 		vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
6670 				      SHMEM_EEE_ACTIVE_BIT);
6671 
6672 		bnx2x_update_mng_eee(params, vars->eee_status);
6673 		bnx2x_set_xmac_rxtx(params, 0);
6674 		bnx2x_set_umac_rxtx(params, 0);
6675 	}
6676 
6677 	return 0;
6678 }
6679 
bnx2x_update_link_up(struct link_params * params,struct link_vars * vars,u8 link_10g)6680 static int bnx2x_update_link_up(struct link_params *params,
6681 				struct link_vars *vars,
6682 				u8 link_10g)
6683 {
6684 	struct bnx2x *bp = params->bp;
6685 	u8 phy_idx, port = params->port;
6686 	int rc = 0;
6687 
6688 	vars->link_status |= (LINK_STATUS_LINK_UP |
6689 			      LINK_STATUS_PHYSICAL_LINK_FLAG);
6690 	vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
6691 
6692 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
6693 		vars->link_status |=
6694 			LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
6695 
6696 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
6697 		vars->link_status |=
6698 			LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
6699 	if (USES_WARPCORE(bp)) {
6700 		if (link_10g) {
6701 			if (bnx2x_xmac_enable(params, vars, 0) ==
6702 			    -ESRCH) {
6703 				DP(NETIF_MSG_LINK, "Found errors on XMAC\n");
6704 				vars->link_up = 0;
6705 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6706 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6707 			}
6708 		} else
6709 			bnx2x_umac_enable(params, vars, 0);
6710 		bnx2x_set_led(params, vars,
6711 			      LED_MODE_OPER, vars->line_speed);
6712 
6713 		if ((vars->eee_status & SHMEM_EEE_ACTIVE_BIT) &&
6714 		    (vars->eee_status & SHMEM_EEE_LPI_REQUESTED_BIT)) {
6715 			DP(NETIF_MSG_LINK, "Enabling LPI assertion\n");
6716 			REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 +
6717 			       (params->port << 2), 1);
6718 			REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 1);
6719 			REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 +
6720 			       (params->port << 2), 0xfc20);
6721 		}
6722 	}
6723 	if ((CHIP_IS_E1x(bp) ||
6724 	     CHIP_IS_E2(bp))) {
6725 		if (link_10g) {
6726 			if (bnx2x_bmac_enable(params, vars, 0, 1) ==
6727 			    -ESRCH) {
6728 				DP(NETIF_MSG_LINK, "Found errors on BMAC\n");
6729 				vars->link_up = 0;
6730 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6731 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6732 			}
6733 
6734 			bnx2x_set_led(params, vars,
6735 				      LED_MODE_OPER, SPEED_10000);
6736 		} else {
6737 			rc = bnx2x_emac_program(params, vars);
6738 			bnx2x_emac_enable(params, vars, 0);
6739 
6740 			/* AN complete? */
6741 			if ((vars->link_status &
6742 			     LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
6743 			    && (!(vars->phy_flags & PHY_SGMII_FLAG)) &&
6744 			    SINGLE_MEDIA_DIRECT(params))
6745 				bnx2x_set_gmii_tx_driver(params);
6746 		}
6747 	}
6748 
6749 	/* PBF - link up */
6750 	if (CHIP_IS_E1x(bp))
6751 		rc |= bnx2x_pbf_update(params, vars->flow_ctrl,
6752 				       vars->line_speed);
6753 
6754 	/* Disable drain */
6755 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 0);
6756 
6757 	/* Update shared memory */
6758 	bnx2x_update_mng(params, vars->link_status);
6759 	bnx2x_update_mng_eee(params, vars->eee_status);
6760 	/* Check remote fault */
6761 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
6762 		if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
6763 			bnx2x_check_half_open_conn(params, vars, 0);
6764 			break;
6765 		}
6766 	}
6767 	msleep(20);
6768 	return rc;
6769 }
6770 
bnx2x_chng_link_count(struct link_params * params,bool clear)6771 static void bnx2x_chng_link_count(struct link_params *params, bool clear)
6772 {
6773 	struct bnx2x *bp = params->bp;
6774 	u32 addr, val;
6775 
6776 	/* Verify the link_change_count is supported by the MFW */
6777 	if (!(SHMEM2_HAS(bp, link_change_count)))
6778 		return;
6779 
6780 	addr = params->shmem2_base +
6781 		offsetof(struct shmem2_region, link_change_count[params->port]);
6782 	if (clear)
6783 		val = 0;
6784 	else
6785 		val = REG_RD(bp, addr) + 1;
6786 	REG_WR(bp, addr, val);
6787 }
6788 
6789 /* The bnx2x_link_update function should be called upon link
6790  * interrupt.
6791  * Link is considered up as follows:
6792  * - DIRECT_SINGLE_MEDIA - Only XGXS link (internal link) needs
6793  *   to be up
6794  * - SINGLE_MEDIA - The link between the 577xx and the external
6795  *   phy (XGXS) need to up as well as the external link of the
6796  *   phy (PHY_EXT1)
6797  * - DUAL_MEDIA - The link between the 577xx and the first
6798  *   external phy needs to be up, and at least one of the 2
6799  *   external phy link must be up.
6800  */
bnx2x_link_update(struct link_params * params,struct link_vars * vars)6801 int bnx2x_link_update(struct link_params *params, struct link_vars *vars)
6802 {
6803 	struct bnx2x *bp = params->bp;
6804 	struct link_vars phy_vars[MAX_PHYS];
6805 	u8 port = params->port;
6806 	u8 link_10g_plus, phy_index;
6807 	u32 prev_link_status = vars->link_status;
6808 	u8 ext_phy_link_up = 0, cur_link_up;
6809 	int rc = 0;
6810 	u8 is_mi_int = 0;
6811 	u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed;
6812 	u8 active_external_phy = INT_PHY;
6813 	vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG;
6814 	vars->link_status &= ~LINK_UPDATE_MASK;
6815 	for (phy_index = INT_PHY; phy_index < params->num_phys;
6816 	      phy_index++) {
6817 		phy_vars[phy_index].flow_ctrl = 0;
6818 		phy_vars[phy_index].link_status = 0;
6819 		phy_vars[phy_index].line_speed = 0;
6820 		phy_vars[phy_index].duplex = DUPLEX_FULL;
6821 		phy_vars[phy_index].phy_link_up = 0;
6822 		phy_vars[phy_index].link_up = 0;
6823 		phy_vars[phy_index].fault_detected = 0;
6824 		/* different consideration, since vars holds inner state */
6825 		phy_vars[phy_index].eee_status = vars->eee_status;
6826 	}
6827 
6828 	if (USES_WARPCORE(bp))
6829 		bnx2x_set_aer_mmd(params, &params->phy[INT_PHY]);
6830 
6831 	DP(NETIF_MSG_LINK, "port %x, XGXS?%x, int_status 0x%x\n",
6832 		 port, (vars->phy_flags & PHY_XGXS_FLAG),
6833 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6834 
6835 	is_mi_int = (u8)(REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT +
6836 				port*0x18) > 0);
6837 	DP(NETIF_MSG_LINK, "int_mask 0x%x MI_INT %x, SERDES_LINK %x\n",
6838 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6839 		 is_mi_int,
6840 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS + port*0x3c));
6841 
6842 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
6843 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6844 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6845 
6846 	/* Disable emac */
6847 	if (!CHIP_IS_E3(bp))
6848 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6849 
6850 	/* Step 1:
6851 	 * Check external link change only for external phys, and apply
6852 	 * priority selection between them in case the link on both phys
6853 	 * is up. Note that instead of the common vars, a temporary
6854 	 * vars argument is used since each phy may have different link/
6855 	 * speed/duplex result
6856 	 */
6857 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6858 	      phy_index++) {
6859 		struct bnx2x_phy *phy = &params->phy[phy_index];
6860 		if (!phy->read_status)
6861 			continue;
6862 		/* Read link status and params of this ext phy */
6863 		cur_link_up = phy->read_status(phy, params,
6864 					       &phy_vars[phy_index]);
6865 		if (cur_link_up) {
6866 			DP(NETIF_MSG_LINK, "phy in index %d link is up\n",
6867 				   phy_index);
6868 		} else {
6869 			DP(NETIF_MSG_LINK, "phy in index %d link is down\n",
6870 				   phy_index);
6871 			continue;
6872 		}
6873 
6874 		if (!ext_phy_link_up) {
6875 			ext_phy_link_up = 1;
6876 			active_external_phy = phy_index;
6877 		} else {
6878 			switch (bnx2x_phy_selection(params)) {
6879 			case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
6880 			case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
6881 			/* In this option, the first PHY makes sure to pass the
6882 			 * traffic through itself only.
6883 			 * It's not clear how to reset the link on the second
6884 			 * phy.
6885 			 */
6886 				active_external_phy = EXT_PHY1;
6887 				break;
6888 			case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
6889 			/* In this option, the first PHY makes sure to pass the
6890 			 * traffic through the second PHY.
6891 			 */
6892 				active_external_phy = EXT_PHY2;
6893 				break;
6894 			default:
6895 			/* Link indication on both PHYs with the following cases
6896 			 * is invalid:
6897 			 * - FIRST_PHY means that second phy wasn't initialized,
6898 			 * hence its link is expected to be down
6899 			 * - SECOND_PHY means that first phy should not be able
6900 			 * to link up by itself (using configuration)
6901 			 * - DEFAULT should be overridden during initialization
6902 			 */
6903 				DP(NETIF_MSG_LINK, "Invalid link indication"
6904 					   "mpc=0x%x. DISABLING LINK !!!\n",
6905 					   params->multi_phy_config);
6906 				ext_phy_link_up = 0;
6907 				break;
6908 			}
6909 		}
6910 	}
6911 	prev_line_speed = vars->line_speed;
6912 	/* Step 2:
6913 	 * Read the status of the internal phy. In case of
6914 	 * DIRECT_SINGLE_MEDIA board, this link is the external link,
6915 	 * otherwise this is the link between the 577xx and the first
6916 	 * external phy
6917 	 */
6918 	if (params->phy[INT_PHY].read_status)
6919 		params->phy[INT_PHY].read_status(
6920 			&params->phy[INT_PHY],
6921 			params, vars);
6922 	/* The INT_PHY flow control reside in the vars. This include the
6923 	 * case where the speed or flow control are not set to AUTO.
6924 	 * Otherwise, the active external phy flow control result is set
6925 	 * to the vars. The ext_phy_line_speed is needed to check if the
6926 	 * speed is different between the internal phy and external phy.
6927 	 * This case may be result of intermediate link speed change.
6928 	 */
6929 	if (active_external_phy > INT_PHY) {
6930 		vars->flow_ctrl = phy_vars[active_external_phy].flow_ctrl;
6931 		/* Link speed is taken from the XGXS. AN and FC result from
6932 		 * the external phy.
6933 		 */
6934 		vars->link_status |= phy_vars[active_external_phy].link_status;
6935 
6936 		/* if active_external_phy is first PHY and link is up - disable
6937 		 * disable TX on second external PHY
6938 		 */
6939 		if (active_external_phy == EXT_PHY1) {
6940 			if (params->phy[EXT_PHY2].phy_specific_func) {
6941 				DP(NETIF_MSG_LINK,
6942 				   "Disabling TX on EXT_PHY2\n");
6943 				params->phy[EXT_PHY2].phy_specific_func(
6944 					&params->phy[EXT_PHY2],
6945 					params, DISABLE_TX);
6946 			}
6947 		}
6948 
6949 		ext_phy_line_speed = phy_vars[active_external_phy].line_speed;
6950 		vars->duplex = phy_vars[active_external_phy].duplex;
6951 		if (params->phy[active_external_phy].supported &
6952 		    SUPPORTED_FIBRE)
6953 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6954 		else
6955 			vars->link_status &= ~LINK_STATUS_SERDES_LINK;
6956 
6957 		vars->eee_status = phy_vars[active_external_phy].eee_status;
6958 
6959 		DP(NETIF_MSG_LINK, "Active external phy selected: %x\n",
6960 			   active_external_phy);
6961 	}
6962 
6963 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6964 	      phy_index++) {
6965 		if (params->phy[phy_index].flags &
6966 		    FLAGS_REARM_LATCH_SIGNAL) {
6967 			bnx2x_rearm_latch_signal(bp, port,
6968 						 phy_index ==
6969 						 active_external_phy);
6970 			break;
6971 		}
6972 	}
6973 	DP(NETIF_MSG_LINK, "vars->flow_ctrl = 0x%x, vars->link_status = 0x%x,"
6974 		   " ext_phy_line_speed = %d\n", vars->flow_ctrl,
6975 		   vars->link_status, ext_phy_line_speed);
6976 	/* Upon link speed change set the NIG into drain mode. Comes to
6977 	 * deals with possible FIFO glitch due to clk change when speed
6978 	 * is decreased without link down indicator
6979 	 */
6980 
6981 	if (vars->phy_link_up) {
6982 		if (!(SINGLE_MEDIA_DIRECT(params)) && ext_phy_link_up &&
6983 		    (ext_phy_line_speed != vars->line_speed)) {
6984 			DP(NETIF_MSG_LINK, "Internal link speed %d is"
6985 				   " different than the external"
6986 				   " link speed %d\n", vars->line_speed,
6987 				   ext_phy_line_speed);
6988 			vars->phy_link_up = 0;
6989 		} else if (prev_line_speed != vars->line_speed) {
6990 			REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4,
6991 			       0);
6992 			usleep_range(1000, 2000);
6993 		}
6994 	}
6995 
6996 	/* Anything 10 and over uses the bmac */
6997 	link_10g_plus = (vars->line_speed >= SPEED_10000);
6998 
6999 	bnx2x_link_int_ack(params, vars, link_10g_plus);
7000 
7001 	/* In case external phy link is up, and internal link is down
7002 	 * (not initialized yet probably after link initialization, it
7003 	 * needs to be initialized.
7004 	 * Note that after link down-up as result of cable plug, the xgxs
7005 	 * link would probably become up again without the need
7006 	 * initialize it
7007 	 */
7008 	if (!(SINGLE_MEDIA_DIRECT(params))) {
7009 		DP(NETIF_MSG_LINK, "ext_phy_link_up = %d, int_link_up = %d,"
7010 			   " init_preceding = %d\n", ext_phy_link_up,
7011 			   vars->phy_link_up,
7012 			   params->phy[EXT_PHY1].flags &
7013 			   FLAGS_INIT_XGXS_FIRST);
7014 		if (!(params->phy[EXT_PHY1].flags &
7015 		      FLAGS_INIT_XGXS_FIRST)
7016 		    && ext_phy_link_up && !vars->phy_link_up) {
7017 			vars->line_speed = ext_phy_line_speed;
7018 			if (vars->line_speed < SPEED_1000)
7019 				vars->phy_flags |= PHY_SGMII_FLAG;
7020 			else
7021 				vars->phy_flags &= ~PHY_SGMII_FLAG;
7022 
7023 			if (params->phy[INT_PHY].config_init)
7024 				params->phy[INT_PHY].config_init(
7025 					&params->phy[INT_PHY], params,
7026 						vars);
7027 		}
7028 	}
7029 	/* Link is up only if both local phy and external phy (in case of
7030 	 * non-direct board) are up and no fault detected on active PHY.
7031 	 */
7032 	vars->link_up = (vars->phy_link_up &&
7033 			 (ext_phy_link_up ||
7034 			  SINGLE_MEDIA_DIRECT(params)) &&
7035 			 (phy_vars[active_external_phy].fault_detected == 0));
7036 
7037 	/* Update the PFC configuration in case it was changed */
7038 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
7039 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
7040 	else
7041 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
7042 
7043 	if (vars->link_up)
7044 		rc = bnx2x_update_link_up(params, vars, link_10g_plus);
7045 	else
7046 		rc = bnx2x_update_link_down(params, vars);
7047 
7048 	if ((prev_link_status ^ vars->link_status) & LINK_STATUS_LINK_UP)
7049 		bnx2x_chng_link_count(params, false);
7050 
7051 	/* Update MCP link status was changed */
7052 	if (params->feature_config_flags & FEATURE_CONFIG_BC_SUPPORTS_AFEX)
7053 		bnx2x_fw_command(bp, DRV_MSG_CODE_LINK_STATUS_CHANGED, 0);
7054 
7055 	return rc;
7056 }
7057 
7058 /*****************************************************************************/
7059 /*			    External Phy section			     */
7060 /*****************************************************************************/
bnx2x_ext_phy_hw_reset(struct bnx2x * bp,u8 port)7061 void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port)
7062 {
7063 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
7064 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
7065 	usleep_range(1000, 2000);
7066 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
7067 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, port);
7068 }
7069 
bnx2x_save_spirom_version(struct bnx2x * bp,u8 port,u32 spirom_ver,u32 ver_addr)7070 static void bnx2x_save_spirom_version(struct bnx2x *bp, u8 port,
7071 				      u32 spirom_ver, u32 ver_addr)
7072 {
7073 	DP(NETIF_MSG_LINK, "FW version 0x%x:0x%x for port %d\n",
7074 		 (u16)(spirom_ver>>16), (u16)spirom_ver, port);
7075 
7076 	if (ver_addr)
7077 		REG_WR(bp, ver_addr, spirom_ver);
7078 }
7079 
bnx2x_save_bcm_spirom_ver(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)7080 static void bnx2x_save_bcm_spirom_ver(struct bnx2x *bp,
7081 				      struct bnx2x_phy *phy,
7082 				      u8 port)
7083 {
7084 	u16 fw_ver1, fw_ver2;
7085 
7086 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
7087 			MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7088 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
7089 			MDIO_PMA_REG_ROM_VER2, &fw_ver2);
7090 	bnx2x_save_spirom_version(bp, port, (u32)(fw_ver1<<16 | fw_ver2),
7091 				  phy->ver_addr);
7092 }
7093 
bnx2x_ext_phy_10G_an_resolve(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_vars * vars)7094 static void bnx2x_ext_phy_10G_an_resolve(struct bnx2x *bp,
7095 				       struct bnx2x_phy *phy,
7096 				       struct link_vars *vars)
7097 {
7098 	u16 val;
7099 	bnx2x_cl45_read(bp, phy,
7100 			MDIO_AN_DEVAD,
7101 			MDIO_AN_REG_STATUS, &val);
7102 	bnx2x_cl45_read(bp, phy,
7103 			MDIO_AN_DEVAD,
7104 			MDIO_AN_REG_STATUS, &val);
7105 	if (val & (1<<5))
7106 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
7107 	if ((val & (1<<0)) == 0)
7108 		vars->link_status |= LINK_STATUS_PARALLEL_DETECTION_USED;
7109 }
7110 
7111 /******************************************************************/
7112 /*		common BCM8073/BCM8727 PHY SECTION		  */
7113 /******************************************************************/
bnx2x_8073_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7114 static void bnx2x_8073_resolve_fc(struct bnx2x_phy *phy,
7115 				  struct link_params *params,
7116 				  struct link_vars *vars)
7117 {
7118 	struct bnx2x *bp = params->bp;
7119 	if (phy->req_line_speed == SPEED_10 ||
7120 	    phy->req_line_speed == SPEED_100) {
7121 		vars->flow_ctrl = phy->req_flow_ctrl;
7122 		return;
7123 	}
7124 
7125 	if (bnx2x_ext_phy_resolve_fc(phy, params, vars) &&
7126 	    (vars->flow_ctrl == BNX2X_FLOW_CTRL_NONE)) {
7127 		u16 pause_result;
7128 		u16 ld_pause;		/* local */
7129 		u16 lp_pause;		/* link partner */
7130 		bnx2x_cl45_read(bp, phy,
7131 				MDIO_AN_DEVAD,
7132 				MDIO_AN_REG_CL37_FC_LD, &ld_pause);
7133 
7134 		bnx2x_cl45_read(bp, phy,
7135 				MDIO_AN_DEVAD,
7136 				MDIO_AN_REG_CL37_FC_LP, &lp_pause);
7137 		pause_result = (ld_pause &
7138 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 5;
7139 		pause_result |= (lp_pause &
7140 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 7;
7141 
7142 		bnx2x_pause_resolve(phy, params, vars, pause_result);
7143 		DP(NETIF_MSG_LINK, "Ext PHY CL37 pause result 0x%x\n",
7144 			   pause_result);
7145 	}
7146 }
bnx2x_8073_8727_external_rom_boot(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)7147 static int bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
7148 					     struct bnx2x_phy *phy,
7149 					     u8 port)
7150 {
7151 	u32 count = 0;
7152 	u16 fw_ver1, fw_msgout;
7153 	int rc = 0;
7154 
7155 	/* Boot port from external ROM  */
7156 	/* EDC grst */
7157 	bnx2x_cl45_write(bp, phy,
7158 			 MDIO_PMA_DEVAD,
7159 			 MDIO_PMA_REG_GEN_CTRL,
7160 			 0x0001);
7161 
7162 	/* Ucode reboot and rst */
7163 	bnx2x_cl45_write(bp, phy,
7164 			 MDIO_PMA_DEVAD,
7165 			 MDIO_PMA_REG_GEN_CTRL,
7166 			 0x008c);
7167 
7168 	bnx2x_cl45_write(bp, phy,
7169 			 MDIO_PMA_DEVAD,
7170 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
7171 
7172 	/* Reset internal microprocessor */
7173 	bnx2x_cl45_write(bp, phy,
7174 			 MDIO_PMA_DEVAD,
7175 			 MDIO_PMA_REG_GEN_CTRL,
7176 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
7177 
7178 	/* Release srst bit */
7179 	bnx2x_cl45_write(bp, phy,
7180 			 MDIO_PMA_DEVAD,
7181 			 MDIO_PMA_REG_GEN_CTRL,
7182 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
7183 
7184 	/* Delay 100ms per the PHY specifications */
7185 	msleep(100);
7186 
7187 	/* 8073 sometimes taking longer to download */
7188 	do {
7189 		count++;
7190 		if (count > 300) {
7191 			DP(NETIF_MSG_LINK,
7192 				 "bnx2x_8073_8727_external_rom_boot port %x:"
7193 				 "Download failed. fw version = 0x%x\n",
7194 				 port, fw_ver1);
7195 			rc = -EINVAL;
7196 			break;
7197 		}
7198 
7199 		bnx2x_cl45_read(bp, phy,
7200 				MDIO_PMA_DEVAD,
7201 				MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7202 		bnx2x_cl45_read(bp, phy,
7203 				MDIO_PMA_DEVAD,
7204 				MDIO_PMA_REG_M8051_MSGOUT_REG, &fw_msgout);
7205 
7206 		usleep_range(1000, 2000);
7207 	} while (fw_ver1 == 0 || fw_ver1 == 0x4321 ||
7208 			((fw_msgout & 0xff) != 0x03 && (phy->type ==
7209 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073)));
7210 
7211 	/* Clear ser_boot_ctl bit */
7212 	bnx2x_cl45_write(bp, phy,
7213 			 MDIO_PMA_DEVAD,
7214 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
7215 	bnx2x_save_bcm_spirom_ver(bp, phy, port);
7216 
7217 	DP(NETIF_MSG_LINK,
7218 		 "bnx2x_8073_8727_external_rom_boot port %x:"
7219 		 "Download complete. fw version = 0x%x\n",
7220 		 port, fw_ver1);
7221 
7222 	return rc;
7223 }
7224 
7225 /******************************************************************/
7226 /*			BCM8073 PHY SECTION			  */
7227 /******************************************************************/
bnx2x_8073_is_snr_needed(struct bnx2x * bp,struct bnx2x_phy * phy)7228 static int bnx2x_8073_is_snr_needed(struct bnx2x *bp, struct bnx2x_phy *phy)
7229 {
7230 	/* This is only required for 8073A1, version 102 only */
7231 	u16 val;
7232 
7233 	/* Read 8073 HW revision*/
7234 	bnx2x_cl45_read(bp, phy,
7235 			MDIO_PMA_DEVAD,
7236 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7237 
7238 	if (val != 1) {
7239 		/* No need to workaround in 8073 A1 */
7240 		return 0;
7241 	}
7242 
7243 	bnx2x_cl45_read(bp, phy,
7244 			MDIO_PMA_DEVAD,
7245 			MDIO_PMA_REG_ROM_VER2, &val);
7246 
7247 	/* SNR should be applied only for version 0x102 */
7248 	if (val != 0x102)
7249 		return 0;
7250 
7251 	return 1;
7252 }
7253 
bnx2x_8073_xaui_wa(struct bnx2x * bp,struct bnx2x_phy * phy)7254 static int bnx2x_8073_xaui_wa(struct bnx2x *bp, struct bnx2x_phy *phy)
7255 {
7256 	u16 val, cnt, cnt1 ;
7257 
7258 	bnx2x_cl45_read(bp, phy,
7259 			MDIO_PMA_DEVAD,
7260 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7261 
7262 	if (val > 0) {
7263 		/* No need to workaround in 8073 A1 */
7264 		return 0;
7265 	}
7266 	/* XAUI workaround in 8073 A0: */
7267 
7268 	/* After loading the boot ROM and restarting Autoneg, poll
7269 	 * Dev1, Reg $C820:
7270 	 */
7271 
7272 	for (cnt = 0; cnt < 1000; cnt++) {
7273 		bnx2x_cl45_read(bp, phy,
7274 				MDIO_PMA_DEVAD,
7275 				MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7276 				&val);
7277 		  /* If bit [14] = 0 or bit [13] = 0, continue on with
7278 		   * system initialization (XAUI work-around not required, as
7279 		   * these bits indicate 2.5G or 1G link up).
7280 		   */
7281 		if (!(val & (1<<14)) || !(val & (1<<13))) {
7282 			DP(NETIF_MSG_LINK, "XAUI work-around not required\n");
7283 			return 0;
7284 		} else if (!(val & (1<<15))) {
7285 			DP(NETIF_MSG_LINK, "bit 15 went off\n");
7286 			/* If bit 15 is 0, then poll Dev1, Reg $C841 until it's
7287 			 * MSB (bit15) goes to 1 (indicating that the XAUI
7288 			 * workaround has completed), then continue on with
7289 			 * system initialization.
7290 			 */
7291 			for (cnt1 = 0; cnt1 < 1000; cnt1++) {
7292 				bnx2x_cl45_read(bp, phy,
7293 					MDIO_PMA_DEVAD,
7294 					MDIO_PMA_REG_8073_XAUI_WA, &val);
7295 				if (val & (1<<15)) {
7296 					DP(NETIF_MSG_LINK,
7297 					  "XAUI workaround has completed\n");
7298 					return 0;
7299 				}
7300 				usleep_range(3000, 6000);
7301 			}
7302 			break;
7303 		}
7304 		usleep_range(3000, 6000);
7305 	}
7306 	DP(NETIF_MSG_LINK, "Warning: XAUI work-around timeout !!!\n");
7307 	return -EINVAL;
7308 }
7309 
bnx2x_807x_force_10G(struct bnx2x * bp,struct bnx2x_phy * phy)7310 static void bnx2x_807x_force_10G(struct bnx2x *bp, struct bnx2x_phy *phy)
7311 {
7312 	/* Force KR or KX */
7313 	bnx2x_cl45_write(bp, phy,
7314 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
7315 	bnx2x_cl45_write(bp, phy,
7316 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0x000b);
7317 	bnx2x_cl45_write(bp, phy,
7318 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0000);
7319 	bnx2x_cl45_write(bp, phy,
7320 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
7321 }
7322 
bnx2x_8073_set_pause_cl37(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)7323 static void bnx2x_8073_set_pause_cl37(struct link_params *params,
7324 				      struct bnx2x_phy *phy,
7325 				      struct link_vars *vars)
7326 {
7327 	u16 cl37_val;
7328 	struct bnx2x *bp = params->bp;
7329 	bnx2x_cl45_read(bp, phy,
7330 			MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &cl37_val);
7331 
7332 	cl37_val &= ~MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7333 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
7334 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
7335 	if ((vars->ieee_fc &
7336 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) ==
7337 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) {
7338 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC;
7339 	}
7340 	if ((vars->ieee_fc &
7341 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
7342 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
7343 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
7344 	}
7345 	if ((vars->ieee_fc &
7346 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
7347 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
7348 		cl37_val |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7349 	}
7350 	DP(NETIF_MSG_LINK,
7351 		 "Ext phy AN advertize cl37 0x%x\n", cl37_val);
7352 
7353 	bnx2x_cl45_write(bp, phy,
7354 			 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, cl37_val);
7355 	msleep(500);
7356 }
7357 
bnx2x_8073_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)7358 static void bnx2x_8073_specific_func(struct bnx2x_phy *phy,
7359 				     struct link_params *params,
7360 				     u32 action)
7361 {
7362 	struct bnx2x *bp = params->bp;
7363 	switch (action) {
7364 	case PHY_INIT:
7365 		/* Enable LASI */
7366 		bnx2x_cl45_write(bp, phy,
7367 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
7368 		bnx2x_cl45_write(bp, phy,
7369 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
7370 		break;
7371 	}
7372 }
7373 
bnx2x_8073_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7374 static void bnx2x_8073_config_init(struct bnx2x_phy *phy,
7375 				   struct link_params *params,
7376 				   struct link_vars *vars)
7377 {
7378 	struct bnx2x *bp = params->bp;
7379 	u16 val = 0, tmp1;
7380 	u8 gpio_port;
7381 	DP(NETIF_MSG_LINK, "Init 8073\n");
7382 
7383 	if (CHIP_IS_E2(bp))
7384 		gpio_port = BP_PATH(bp);
7385 	else
7386 		gpio_port = params->port;
7387 	/* Restore normal power mode*/
7388 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7389 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7390 
7391 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
7392 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7393 
7394 	bnx2x_8073_specific_func(phy, params, PHY_INIT);
7395 	bnx2x_8073_set_pause_cl37(params, phy, vars);
7396 
7397 	bnx2x_cl45_read(bp, phy,
7398 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
7399 
7400 	bnx2x_cl45_read(bp, phy,
7401 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
7402 
7403 	DP(NETIF_MSG_LINK, "Before rom RX_ALARM(port1): 0x%x\n", tmp1);
7404 
7405 	/* Swap polarity if required - Must be done only in non-1G mode */
7406 	if (params->lane_config & PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7407 		/* Configure the 8073 to swap _P and _N of the KR lines */
7408 		DP(NETIF_MSG_LINK, "Swapping polarity for the 8073\n");
7409 		/* 10G Rx/Tx and 1G Tx signal polarity swap */
7410 		bnx2x_cl45_read(bp, phy,
7411 				MDIO_PMA_DEVAD,
7412 				MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL, &val);
7413 		bnx2x_cl45_write(bp, phy,
7414 				 MDIO_PMA_DEVAD,
7415 				 MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL,
7416 				 (val | (3<<9)));
7417 	}
7418 
7419 
7420 	/* Enable CL37 BAM */
7421 	if (REG_RD(bp, params->shmem_base +
7422 			 offsetof(struct shmem_region, dev_info.
7423 				  port_hw_config[params->port].default_cfg)) &
7424 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
7425 
7426 		bnx2x_cl45_read(bp, phy,
7427 				MDIO_AN_DEVAD,
7428 				MDIO_AN_REG_8073_BAM, &val);
7429 		bnx2x_cl45_write(bp, phy,
7430 				 MDIO_AN_DEVAD,
7431 				 MDIO_AN_REG_8073_BAM, val | 1);
7432 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
7433 	}
7434 	if (params->loopback_mode == LOOPBACK_EXT) {
7435 		bnx2x_807x_force_10G(bp, phy);
7436 		DP(NETIF_MSG_LINK, "Forced speed 10G on 807X\n");
7437 		return;
7438 	} else {
7439 		bnx2x_cl45_write(bp, phy,
7440 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
7441 	}
7442 	if (phy->req_line_speed != SPEED_AUTO_NEG) {
7443 		if (phy->req_line_speed == SPEED_10000) {
7444 			val = (1<<7);
7445 		} else if (phy->req_line_speed ==  SPEED_2500) {
7446 			val = (1<<5);
7447 			/* Note that 2.5G works only when used with 1G
7448 			 * advertisement
7449 			 */
7450 		} else
7451 			val = (1<<5);
7452 	} else {
7453 		val = 0;
7454 		if (phy->speed_cap_mask &
7455 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
7456 			val |= (1<<7);
7457 
7458 		/* Note that 2.5G works only when used with 1G advertisement */
7459 		if (phy->speed_cap_mask &
7460 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_1G |
7461 			 PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
7462 			val |= (1<<5);
7463 		DP(NETIF_MSG_LINK, "807x autoneg val = 0x%x\n", val);
7464 	}
7465 
7466 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV, val);
7467 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, &tmp1);
7468 
7469 	if (((phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G) &&
7470 	     (phy->req_line_speed == SPEED_AUTO_NEG)) ||
7471 	    (phy->req_line_speed == SPEED_2500)) {
7472 		u16 phy_ver;
7473 		/* Allow 2.5G for A1 and above */
7474 		bnx2x_cl45_read(bp, phy,
7475 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_CHIP_REV,
7476 				&phy_ver);
7477 		DP(NETIF_MSG_LINK, "Add 2.5G\n");
7478 		if (phy_ver > 0)
7479 			tmp1 |= 1;
7480 		else
7481 			tmp1 &= 0xfffe;
7482 	} else {
7483 		DP(NETIF_MSG_LINK, "Disable 2.5G\n");
7484 		tmp1 &= 0xfffe;
7485 	}
7486 
7487 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, tmp1);
7488 	/* Add support for CL37 (passive mode) II */
7489 
7490 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &tmp1);
7491 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD,
7492 			 (tmp1 | ((phy->req_duplex == DUPLEX_FULL) ?
7493 				  0x20 : 0x40)));
7494 
7495 	/* Add support for CL37 (passive mode) III */
7496 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
7497 
7498 	/* The SNR will improve about 2db by changing BW and FEE main
7499 	 * tap. Rest commands are executed after link is up
7500 	 * Change FFE main cursor to 5 in EDC register
7501 	 */
7502 	if (bnx2x_8073_is_snr_needed(bp, phy))
7503 		bnx2x_cl45_write(bp, phy,
7504 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_EDC_FFE_MAIN,
7505 				 0xFB0C);
7506 
7507 	/* Enable FEC (Forware Error Correction) Request in the AN */
7508 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, &tmp1);
7509 	tmp1 |= (1<<15);
7510 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, tmp1);
7511 
7512 	bnx2x_ext_phy_set_pause(params, phy, vars);
7513 
7514 	/* Restart autoneg */
7515 	msleep(500);
7516 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
7517 	DP(NETIF_MSG_LINK, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
7518 		   ((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
7519 }
7520 
bnx2x_8073_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7521 static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
7522 				 struct link_params *params,
7523 				 struct link_vars *vars)
7524 {
7525 	struct bnx2x *bp = params->bp;
7526 	u8 link_up = 0;
7527 	u16 val1, val2;
7528 	u16 link_status = 0;
7529 	u16 an1000_status = 0;
7530 
7531 	bnx2x_cl45_read(bp, phy,
7532 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
7533 
7534 	DP(NETIF_MSG_LINK, "8703 LASI status 0x%x\n", val1);
7535 
7536 	/* Clear the interrupt LASI status register */
7537 	bnx2x_cl45_read(bp, phy,
7538 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7539 	bnx2x_cl45_read(bp, phy,
7540 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val1);
7541 	DP(NETIF_MSG_LINK, "807x PCS status 0x%x->0x%x\n", val2, val1);
7542 	/* Clear MSG-OUT */
7543 	bnx2x_cl45_read(bp, phy,
7544 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
7545 
7546 	/* Check the LASI */
7547 	bnx2x_cl45_read(bp, phy,
7548 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
7549 
7550 	DP(NETIF_MSG_LINK, "KR 0x9003 0x%x\n", val2);
7551 
7552 	/* Check the link status */
7553 	bnx2x_cl45_read(bp, phy,
7554 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7555 	DP(NETIF_MSG_LINK, "KR PCS status 0x%x\n", val2);
7556 
7557 	bnx2x_cl45_read(bp, phy,
7558 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7559 	bnx2x_cl45_read(bp, phy,
7560 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7561 	link_up = ((val1 & 4) == 4);
7562 	DP(NETIF_MSG_LINK, "PMA_REG_STATUS=0x%x\n", val1);
7563 
7564 	if (link_up &&
7565 	     ((phy->req_line_speed != SPEED_10000))) {
7566 		if (bnx2x_8073_xaui_wa(bp, phy) != 0)
7567 			return 0;
7568 	}
7569 	bnx2x_cl45_read(bp, phy,
7570 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7571 	bnx2x_cl45_read(bp, phy,
7572 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7573 
7574 	/* Check the link status on 1.1.2 */
7575 	bnx2x_cl45_read(bp, phy,
7576 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7577 	bnx2x_cl45_read(bp, phy,
7578 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7579 	DP(NETIF_MSG_LINK, "KR PMA status 0x%x->0x%x,"
7580 		   "an_link_status=0x%x\n", val2, val1, an1000_status);
7581 
7582 	link_up = (((val1 & 4) == 4) || (an1000_status & (1<<1)));
7583 	if (link_up && bnx2x_8073_is_snr_needed(bp, phy)) {
7584 		/* The SNR will improve about 2dbby changing the BW and FEE main
7585 		 * tap. The 1st write to change FFE main tap is set before
7586 		 * restart AN. Change PLL Bandwidth in EDC register
7587 		 */
7588 		bnx2x_cl45_write(bp, phy,
7589 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PLL_BANDWIDTH,
7590 				 0x26BC);
7591 
7592 		/* Change CDR Bandwidth in EDC register */
7593 		bnx2x_cl45_write(bp, phy,
7594 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CDR_BANDWIDTH,
7595 				 0x0333);
7596 	}
7597 	bnx2x_cl45_read(bp, phy,
7598 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7599 			&link_status);
7600 
7601 	/* Bits 0..2 --> speed detected, bits 13..15--> link is down */
7602 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
7603 		link_up = 1;
7604 		vars->line_speed = SPEED_10000;
7605 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
7606 			   params->port);
7607 	} else if ((link_status & (1<<1)) && (!(link_status & (1<<14)))) {
7608 		link_up = 1;
7609 		vars->line_speed = SPEED_2500;
7610 		DP(NETIF_MSG_LINK, "port %x: External link up in 2.5G\n",
7611 			   params->port);
7612 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
7613 		link_up = 1;
7614 		vars->line_speed = SPEED_1000;
7615 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
7616 			   params->port);
7617 	} else {
7618 		link_up = 0;
7619 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
7620 			   params->port);
7621 	}
7622 
7623 	if (link_up) {
7624 		/* Swap polarity if required */
7625 		if (params->lane_config &
7626 		    PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7627 			/* Configure the 8073 to swap P and N of the KR lines */
7628 			bnx2x_cl45_read(bp, phy,
7629 					MDIO_XS_DEVAD,
7630 					MDIO_XS_REG_8073_RX_CTRL_PCIE, &val1);
7631 			/* Set bit 3 to invert Rx in 1G mode and clear this bit
7632 			 * when it`s in 10G mode.
7633 			 */
7634 			if (vars->line_speed == SPEED_1000) {
7635 				DP(NETIF_MSG_LINK, "Swapping 1G polarity for"
7636 					      "the 8073\n");
7637 				val1 |= (1<<3);
7638 			} else
7639 				val1 &= ~(1<<3);
7640 
7641 			bnx2x_cl45_write(bp, phy,
7642 					 MDIO_XS_DEVAD,
7643 					 MDIO_XS_REG_8073_RX_CTRL_PCIE,
7644 					 val1);
7645 		}
7646 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
7647 		bnx2x_8073_resolve_fc(phy, params, vars);
7648 		vars->duplex = DUPLEX_FULL;
7649 	}
7650 
7651 	if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
7652 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
7653 				MDIO_AN_REG_LP_AUTO_NEG2, &val1);
7654 
7655 		if (val1 & (1<<5))
7656 			vars->link_status |=
7657 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
7658 		if (val1 & (1<<7))
7659 			vars->link_status |=
7660 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
7661 	}
7662 
7663 	return link_up;
7664 }
7665 
bnx2x_8073_link_reset(struct bnx2x_phy * phy,struct link_params * params)7666 static void bnx2x_8073_link_reset(struct bnx2x_phy *phy,
7667 				  struct link_params *params)
7668 {
7669 	struct bnx2x *bp = params->bp;
7670 	u8 gpio_port;
7671 	if (CHIP_IS_E2(bp))
7672 		gpio_port = BP_PATH(bp);
7673 	else
7674 		gpio_port = params->port;
7675 	DP(NETIF_MSG_LINK, "Setting 8073 port %d into low power mode\n",
7676 	   gpio_port);
7677 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7678 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
7679 		       gpio_port);
7680 }
7681 
7682 /******************************************************************/
7683 /*			BCM8705 PHY SECTION			  */
7684 /******************************************************************/
bnx2x_8705_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7685 static void bnx2x_8705_config_init(struct bnx2x_phy *phy,
7686 				   struct link_params *params,
7687 				   struct link_vars *vars)
7688 {
7689 	struct bnx2x *bp = params->bp;
7690 	DP(NETIF_MSG_LINK, "init 8705\n");
7691 	/* Restore normal power mode*/
7692 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7693 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
7694 	/* HW reset */
7695 	bnx2x_ext_phy_hw_reset(bp, params->port);
7696 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
7697 	bnx2x_wait_reset_complete(bp, phy, params);
7698 
7699 	bnx2x_cl45_write(bp, phy,
7700 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_MISC_CTRL, 0x8288);
7701 	bnx2x_cl45_write(bp, phy,
7702 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, 0x7fbf);
7703 	bnx2x_cl45_write(bp, phy,
7704 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CMU_PLL_BYPASS, 0x0100);
7705 	bnx2x_cl45_write(bp, phy,
7706 			 MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
7707 	/* BCM8705 doesn't have microcode, hence the 0 */
7708 	bnx2x_save_spirom_version(bp, params->port, params->shmem_base, 0);
7709 }
7710 
bnx2x_8705_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7711 static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy,
7712 				 struct link_params *params,
7713 				 struct link_vars *vars)
7714 {
7715 	u8 link_up = 0;
7716 	u16 val1, rx_sd;
7717 	struct bnx2x *bp = params->bp;
7718 	DP(NETIF_MSG_LINK, "read status 8705\n");
7719 	bnx2x_cl45_read(bp, phy,
7720 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7721 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7722 
7723 	bnx2x_cl45_read(bp, phy,
7724 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7725 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7726 
7727 	bnx2x_cl45_read(bp, phy,
7728 		      MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
7729 
7730 	bnx2x_cl45_read(bp, phy,
7731 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7732 	bnx2x_cl45_read(bp, phy,
7733 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7734 
7735 	DP(NETIF_MSG_LINK, "8705 1.c809 val=0x%x\n", val1);
7736 	link_up = ((rx_sd & 0x1) && (val1 & (1<<9)) && ((val1 & (1<<8)) == 0));
7737 	if (link_up) {
7738 		vars->line_speed = SPEED_10000;
7739 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
7740 	}
7741 	return link_up;
7742 }
7743 
7744 /******************************************************************/
7745 /*			SFP+ module Section			  */
7746 /******************************************************************/
bnx2x_set_disable_pmd_transmit(struct link_params * params,struct bnx2x_phy * phy,u8 pmd_dis)7747 static void bnx2x_set_disable_pmd_transmit(struct link_params *params,
7748 					   struct bnx2x_phy *phy,
7749 					   u8 pmd_dis)
7750 {
7751 	struct bnx2x *bp = params->bp;
7752 	/* Disable transmitter only for bootcodes which can enable it afterwards
7753 	 * (for D3 link)
7754 	 */
7755 	if (pmd_dis) {
7756 		if (params->feature_config_flags &
7757 		     FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED)
7758 			DP(NETIF_MSG_LINK, "Disabling PMD transmitter\n");
7759 		else {
7760 			DP(NETIF_MSG_LINK, "NOT disabling PMD transmitter\n");
7761 			return;
7762 		}
7763 	} else
7764 		DP(NETIF_MSG_LINK, "Enabling PMD transmitter\n");
7765 	bnx2x_cl45_write(bp, phy,
7766 			 MDIO_PMA_DEVAD,
7767 			 MDIO_PMA_REG_TX_DISABLE, pmd_dis);
7768 }
7769 
bnx2x_get_gpio_port(struct link_params * params)7770 static u8 bnx2x_get_gpio_port(struct link_params *params)
7771 {
7772 	u8 gpio_port;
7773 	u32 swap_val, swap_override;
7774 	struct bnx2x *bp = params->bp;
7775 	if (CHIP_IS_E2(bp))
7776 		gpio_port = BP_PATH(bp);
7777 	else
7778 		gpio_port = params->port;
7779 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
7780 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
7781 	return gpio_port ^ (swap_val && swap_override);
7782 }
7783 
bnx2x_sfp_e1e2_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7784 static void bnx2x_sfp_e1e2_set_transmitter(struct link_params *params,
7785 					   struct bnx2x_phy *phy,
7786 					   u8 tx_en)
7787 {
7788 	u16 val;
7789 	u8 port = params->port;
7790 	struct bnx2x *bp = params->bp;
7791 	u32 tx_en_mode;
7792 
7793 	/* Disable/Enable transmitter ( TX laser of the SFP+ module.)*/
7794 	tx_en_mode = REG_RD(bp, params->shmem_base +
7795 			    offsetof(struct shmem_region,
7796 				     dev_info.port_hw_config[port].sfp_ctrl)) &
7797 		PORT_HW_CFG_TX_LASER_MASK;
7798 	DP(NETIF_MSG_LINK, "Setting transmitter tx_en=%x for port %x "
7799 			   "mode = %x\n", tx_en, port, tx_en_mode);
7800 	switch (tx_en_mode) {
7801 	case PORT_HW_CFG_TX_LASER_MDIO:
7802 
7803 		bnx2x_cl45_read(bp, phy,
7804 				MDIO_PMA_DEVAD,
7805 				MDIO_PMA_REG_PHY_IDENTIFIER,
7806 				&val);
7807 
7808 		if (tx_en)
7809 			val &= ~(1<<15);
7810 		else
7811 			val |= (1<<15);
7812 
7813 		bnx2x_cl45_write(bp, phy,
7814 				 MDIO_PMA_DEVAD,
7815 				 MDIO_PMA_REG_PHY_IDENTIFIER,
7816 				 val);
7817 	break;
7818 	case PORT_HW_CFG_TX_LASER_GPIO0:
7819 	case PORT_HW_CFG_TX_LASER_GPIO1:
7820 	case PORT_HW_CFG_TX_LASER_GPIO2:
7821 	case PORT_HW_CFG_TX_LASER_GPIO3:
7822 	{
7823 		u16 gpio_pin;
7824 		u8 gpio_port, gpio_mode;
7825 		if (tx_en)
7826 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_HIGH;
7827 		else
7828 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_LOW;
7829 
7830 		gpio_pin = tx_en_mode - PORT_HW_CFG_TX_LASER_GPIO0;
7831 		gpio_port = bnx2x_get_gpio_port(params);
7832 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
7833 		break;
7834 	}
7835 	default:
7836 		DP(NETIF_MSG_LINK, "Invalid TX_LASER_MDIO 0x%x\n", tx_en_mode);
7837 		break;
7838 	}
7839 }
7840 
bnx2x_sfp_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7841 static void bnx2x_sfp_set_transmitter(struct link_params *params,
7842 				      struct bnx2x_phy *phy,
7843 				      u8 tx_en)
7844 {
7845 	struct bnx2x *bp = params->bp;
7846 	DP(NETIF_MSG_LINK, "Setting SFP+ transmitter to %d\n", tx_en);
7847 	if (CHIP_IS_E3(bp))
7848 		bnx2x_sfp_e3_set_transmitter(params, phy, tx_en);
7849 	else
7850 		bnx2x_sfp_e1e2_set_transmitter(params, phy, tx_en);
7851 }
7852 
bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7853 static int bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7854 					     struct link_params *params,
7855 					     u8 dev_addr, u16 addr, u8 byte_cnt,
7856 					     u8 *o_buf, u8 is_init)
7857 {
7858 	struct bnx2x *bp = params->bp;
7859 	u16 val = 0;
7860 	u16 i;
7861 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7862 		DP(NETIF_MSG_LINK,
7863 		   "Reading from eeprom is limited to 0xf\n");
7864 		return -EINVAL;
7865 	}
7866 	/* Set the read command byte count */
7867 	bnx2x_cl45_write(bp, phy,
7868 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
7869 			 (byte_cnt | (dev_addr << 8)));
7870 
7871 	/* Set the read command address */
7872 	bnx2x_cl45_write(bp, phy,
7873 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
7874 			 addr);
7875 
7876 	/* Activate read command */
7877 	bnx2x_cl45_write(bp, phy,
7878 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7879 			 0x2c0f);
7880 
7881 	/* Wait up to 500us for command complete status */
7882 	for (i = 0; i < 100; i++) {
7883 		bnx2x_cl45_read(bp, phy,
7884 				MDIO_PMA_DEVAD,
7885 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7886 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7887 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
7888 			break;
7889 		udelay(5);
7890 	}
7891 
7892 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
7893 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
7894 		DP(NETIF_MSG_LINK,
7895 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
7896 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
7897 		return -EINVAL;
7898 	}
7899 
7900 	/* Read the buffer */
7901 	for (i = 0; i < byte_cnt; i++) {
7902 		bnx2x_cl45_read(bp, phy,
7903 				MDIO_PMA_DEVAD,
7904 				MDIO_PMA_REG_8726_TWO_WIRE_DATA_BUF + i, &val);
7905 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8726_TWO_WIRE_DATA_MASK);
7906 	}
7907 
7908 	for (i = 0; i < 100; i++) {
7909 		bnx2x_cl45_read(bp, phy,
7910 				MDIO_PMA_DEVAD,
7911 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7912 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7913 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
7914 			return 0;
7915 		usleep_range(1000, 2000);
7916 	}
7917 	return -EINVAL;
7918 }
7919 
bnx2x_warpcore_power_module(struct link_params * params,u8 power)7920 static void bnx2x_warpcore_power_module(struct link_params *params,
7921 					u8 power)
7922 {
7923 	u32 pin_cfg;
7924 	struct bnx2x *bp = params->bp;
7925 
7926 	pin_cfg = (REG_RD(bp, params->shmem_base +
7927 			  offsetof(struct shmem_region,
7928 			dev_info.port_hw_config[params->port].e3_sfp_ctrl)) &
7929 			PORT_HW_CFG_E3_PWR_DIS_MASK) >>
7930 			PORT_HW_CFG_E3_PWR_DIS_SHIFT;
7931 
7932 	if (pin_cfg == PIN_CFG_NA)
7933 		return;
7934 	DP(NETIF_MSG_LINK, "Setting SFP+ module power to %d using pin cfg %d\n",
7935 		       power, pin_cfg);
7936 	/* Low ==> corresponding SFP+ module is powered
7937 	 * high ==> the SFP+ module is powered down
7938 	 */
7939 	bnx2x_set_cfg_pin(bp, pin_cfg, power ^ 1);
7940 }
bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7941 static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7942 						 struct link_params *params,
7943 						 u8 dev_addr,
7944 						 u16 addr, u8 byte_cnt,
7945 						 u8 *o_buf, u8 is_init)
7946 {
7947 	int rc = 0;
7948 	u8 i, j = 0, cnt = 0;
7949 	u32 data_array[4];
7950 	u16 addr32;
7951 	struct bnx2x *bp = params->bp;
7952 
7953 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7954 		DP(NETIF_MSG_LINK,
7955 		   "Reading from eeprom is limited to 16 bytes\n");
7956 		return -EINVAL;
7957 	}
7958 
7959 	/* 4 byte aligned address */
7960 	addr32 = addr & (~0x3);
7961 	do {
7962 		if ((!is_init) && (cnt == I2C_WA_PWR_ITER)) {
7963 			bnx2x_warpcore_power_module(params, 0);
7964 			/* Note that 100us are not enough here */
7965 			usleep_range(1000, 2000);
7966 			bnx2x_warpcore_power_module(params, 1);
7967 		}
7968 		rc = bnx2x_bsc_read(params, bp, dev_addr, addr32, 0, byte_cnt,
7969 				    data_array);
7970 	} while ((rc != 0) && (++cnt < I2C_WA_RETRY_CNT));
7971 
7972 	if (rc == 0) {
7973 		for (i = (addr - addr32); i < byte_cnt + (addr - addr32); i++) {
7974 			o_buf[j] = *((u8 *)data_array + i);
7975 			j++;
7976 		}
7977 	}
7978 
7979 	return rc;
7980 }
7981 
bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7982 static int bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7983 					     struct link_params *params,
7984 					     u8 dev_addr, u16 addr, u8 byte_cnt,
7985 					     u8 *o_buf, u8 is_init)
7986 {
7987 	struct bnx2x *bp = params->bp;
7988 	u16 val, i;
7989 
7990 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7991 		DP(NETIF_MSG_LINK,
7992 		   "Reading from eeprom is limited to 0xf\n");
7993 		return -EINVAL;
7994 	}
7995 
7996 	/* Set 2-wire transfer rate of SFP+ module EEPROM
7997 	 * to 100Khz since some DACs(direct attached cables) do
7998 	 * not work at 400Khz.
7999 	 */
8000 	bnx2x_cl45_write(bp, phy,
8001 			 MDIO_PMA_DEVAD,
8002 			 MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
8003 			 ((dev_addr << 8) | 1));
8004 
8005 	/* Need to read from 1.8000 to clear it */
8006 	bnx2x_cl45_read(bp, phy,
8007 			MDIO_PMA_DEVAD,
8008 			MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
8009 			&val);
8010 
8011 	/* Set the read command byte count */
8012 	bnx2x_cl45_write(bp, phy,
8013 			 MDIO_PMA_DEVAD,
8014 			 MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
8015 			 ((byte_cnt < 2) ? 2 : byte_cnt));
8016 
8017 	/* Set the read command address */
8018 	bnx2x_cl45_write(bp, phy,
8019 			 MDIO_PMA_DEVAD,
8020 			 MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
8021 			 addr);
8022 	/* Set the destination address */
8023 	bnx2x_cl45_write(bp, phy,
8024 			 MDIO_PMA_DEVAD,
8025 			 0x8004,
8026 			 MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF);
8027 
8028 	/* Activate read command */
8029 	bnx2x_cl45_write(bp, phy,
8030 			 MDIO_PMA_DEVAD,
8031 			 MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
8032 			 0x8002);
8033 	/* Wait appropriate time for two-wire command to finish before
8034 	 * polling the status register
8035 	 */
8036 	usleep_range(1000, 2000);
8037 
8038 	/* Wait up to 500us for command complete status */
8039 	for (i = 0; i < 100; i++) {
8040 		bnx2x_cl45_read(bp, phy,
8041 				MDIO_PMA_DEVAD,
8042 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8043 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8044 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
8045 			break;
8046 		udelay(5);
8047 	}
8048 
8049 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
8050 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
8051 		DP(NETIF_MSG_LINK,
8052 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
8053 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
8054 		return -EFAULT;
8055 	}
8056 
8057 	/* Read the buffer */
8058 	for (i = 0; i < byte_cnt; i++) {
8059 		bnx2x_cl45_read(bp, phy,
8060 				MDIO_PMA_DEVAD,
8061 				MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF + i, &val);
8062 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8727_TWO_WIRE_DATA_MASK);
8063 	}
8064 
8065 	for (i = 0; i < 100; i++) {
8066 		bnx2x_cl45_read(bp, phy,
8067 				MDIO_PMA_DEVAD,
8068 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8069 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8070 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
8071 			return 0;
8072 		usleep_range(1000, 2000);
8073 	}
8074 
8075 	return -EINVAL;
8076 }
bnx2x_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u16 byte_cnt,u8 * o_buf)8077 int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
8078 				 struct link_params *params, u8 dev_addr,
8079 				 u16 addr, u16 byte_cnt, u8 *o_buf)
8080 {
8081 	int rc = 0;
8082 	struct bnx2x *bp = params->bp;
8083 	u8 xfer_size;
8084 	u8 *user_data = o_buf;
8085 	read_sfp_module_eeprom_func_p read_func;
8086 
8087 	if ((dev_addr != 0xa0) && (dev_addr != 0xa2)) {
8088 		DP(NETIF_MSG_LINK, "invalid dev_addr 0x%x\n", dev_addr);
8089 		return -EINVAL;
8090 	}
8091 
8092 	switch (phy->type) {
8093 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8094 		read_func = bnx2x_8726_read_sfp_module_eeprom;
8095 		break;
8096 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8097 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8098 		read_func = bnx2x_8727_read_sfp_module_eeprom;
8099 		break;
8100 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8101 		read_func = bnx2x_warpcore_read_sfp_module_eeprom;
8102 		break;
8103 	default:
8104 		return -EOPNOTSUPP;
8105 	}
8106 
8107 	while (!rc && (byte_cnt > 0)) {
8108 		xfer_size = (byte_cnt > SFP_EEPROM_PAGE_SIZE) ?
8109 			SFP_EEPROM_PAGE_SIZE : byte_cnt;
8110 		rc = read_func(phy, params, dev_addr, addr, xfer_size,
8111 			       user_data, 0);
8112 		byte_cnt -= xfer_size;
8113 		user_data += xfer_size;
8114 		addr += xfer_size;
8115 	}
8116 	return rc;
8117 }
8118 
bnx2x_get_edc_mode(struct bnx2x_phy * phy,struct link_params * params,u16 * edc_mode)8119 static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
8120 			      struct link_params *params,
8121 			      u16 *edc_mode)
8122 {
8123 	struct bnx2x *bp = params->bp;
8124 	u32 sync_offset = 0, phy_idx, media_types;
8125 	u8 val[SFP_EEPROM_FC_TX_TECH_ADDR + 1], check_limiting_mode = 0;
8126 	*edc_mode = EDC_MODE_LIMITING;
8127 	phy->media_type = ETH_PHY_UNSPECIFIED;
8128 	/* First check for copper cable */
8129 	if (bnx2x_read_sfp_module_eeprom(phy,
8130 					 params,
8131 					 I2C_DEV_ADDR_A0,
8132 					 0,
8133 					 SFP_EEPROM_FC_TX_TECH_ADDR + 1,
8134 					 (u8 *)val) != 0) {
8135 		DP(NETIF_MSG_LINK, "Failed to read from SFP+ module EEPROM\n");
8136 		return -EINVAL;
8137 	}
8138 	params->link_attr_sync &= ~LINK_SFP_EEPROM_COMP_CODE_MASK;
8139 	params->link_attr_sync |= val[SFP_EEPROM_10G_COMP_CODE_ADDR] <<
8140 		LINK_SFP_EEPROM_COMP_CODE_SHIFT;
8141 	bnx2x_update_link_attr(params, params->link_attr_sync);
8142 	switch (val[SFP_EEPROM_CON_TYPE_ADDR]) {
8143 	case SFP_EEPROM_CON_TYPE_VAL_COPPER:
8144 	{
8145 		u8 copper_module_type;
8146 		phy->media_type = ETH_PHY_DA_TWINAX;
8147 		/* Check if its active cable (includes SFP+ module)
8148 		 * of passive cable
8149 		 */
8150 		copper_module_type = val[SFP_EEPROM_FC_TX_TECH_ADDR];
8151 
8152 		if (copper_module_type &
8153 		    SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
8154 			DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
8155 			if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
8156 				*edc_mode = EDC_MODE_ACTIVE_DAC;
8157 			else
8158 				check_limiting_mode = 1;
8159 		} else {
8160 			*edc_mode = EDC_MODE_PASSIVE_DAC;
8161 			/* Even in case PASSIVE_DAC indication is not set,
8162 			 * treat it as a passive DAC cable, since some cables
8163 			 * don't have this indication.
8164 			 */
8165 			if (copper_module_type &
8166 			    SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
8167 				DP(NETIF_MSG_LINK,
8168 				   "Passive Copper cable detected\n");
8169 			} else {
8170 				DP(NETIF_MSG_LINK,
8171 				   "Unknown copper-cable-type\n");
8172 			}
8173 		}
8174 		break;
8175 	}
8176 	case SFP_EEPROM_CON_TYPE_VAL_UNKNOWN:
8177 	case SFP_EEPROM_CON_TYPE_VAL_LC:
8178 	case SFP_EEPROM_CON_TYPE_VAL_RJ45:
8179 		check_limiting_mode = 1;
8180 		if (((val[SFP_EEPROM_10G_COMP_CODE_ADDR] &
8181 		     (SFP_EEPROM_10G_COMP_CODE_SR_MASK |
8182 		      SFP_EEPROM_10G_COMP_CODE_LR_MASK |
8183 		       SFP_EEPROM_10G_COMP_CODE_LRM_MASK)) == 0) &&
8184 		    (val[SFP_EEPROM_1G_COMP_CODE_ADDR] != 0)) {
8185 			DP(NETIF_MSG_LINK, "1G SFP module detected\n");
8186 			phy->media_type = ETH_PHY_SFP_1G_FIBER;
8187 			if (phy->req_line_speed != SPEED_1000) {
8188 				u8 gport = params->port;
8189 				phy->req_line_speed = SPEED_1000;
8190 				if (!CHIP_IS_E1x(bp)) {
8191 					gport = BP_PATH(bp) +
8192 					(params->port << 1);
8193 				}
8194 				netdev_err(bp->dev,
8195 					   "Warning: Link speed was forced to 1000Mbps. Current SFP module in port %d is not compliant with 10G Ethernet\n",
8196 					   gport);
8197 			}
8198 			if (val[SFP_EEPROM_1G_COMP_CODE_ADDR] &
8199 			    SFP_EEPROM_1G_COMP_CODE_BASE_T) {
8200 				bnx2x_sfp_set_transmitter(params, phy, 0);
8201 				msleep(40);
8202 				bnx2x_sfp_set_transmitter(params, phy, 1);
8203 			}
8204 		} else {
8205 			int idx, cfg_idx = 0;
8206 			DP(NETIF_MSG_LINK, "10G Optic module detected\n");
8207 			for (idx = INT_PHY; idx < MAX_PHYS; idx++) {
8208 				if (params->phy[idx].type == phy->type) {
8209 					cfg_idx = LINK_CONFIG_IDX(idx);
8210 					break;
8211 				}
8212 			}
8213 			phy->media_type = ETH_PHY_SFPP_10G_FIBER;
8214 			phy->req_line_speed = params->req_line_speed[cfg_idx];
8215 		}
8216 		break;
8217 	default:
8218 		DP(NETIF_MSG_LINK, "Unable to determine module type 0x%x !!!\n",
8219 			 val[SFP_EEPROM_CON_TYPE_ADDR]);
8220 		return -EINVAL;
8221 	}
8222 	sync_offset = params->shmem_base +
8223 		offsetof(struct shmem_region,
8224 			 dev_info.port_hw_config[params->port].media_type);
8225 	media_types = REG_RD(bp, sync_offset);
8226 	/* Update media type for non-PMF sync */
8227 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
8228 		if (&(params->phy[phy_idx]) == phy) {
8229 			media_types &= ~(PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
8230 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
8231 			media_types |= ((phy->media_type &
8232 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
8233 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
8234 			break;
8235 		}
8236 	}
8237 	REG_WR(bp, sync_offset, media_types);
8238 	if (check_limiting_mode) {
8239 		u8 options[SFP_EEPROM_OPTIONS_SIZE];
8240 		if (bnx2x_read_sfp_module_eeprom(phy,
8241 						 params,
8242 						 I2C_DEV_ADDR_A0,
8243 						 SFP_EEPROM_OPTIONS_ADDR,
8244 						 SFP_EEPROM_OPTIONS_SIZE,
8245 						 options) != 0) {
8246 			DP(NETIF_MSG_LINK,
8247 			   "Failed to read Option field from module EEPROM\n");
8248 			return -EINVAL;
8249 		}
8250 		if ((options[0] & SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK))
8251 			*edc_mode = EDC_MODE_LINEAR;
8252 		else
8253 			*edc_mode = EDC_MODE_LIMITING;
8254 	}
8255 	DP(NETIF_MSG_LINK, "EDC mode is set to 0x%x\n", *edc_mode);
8256 	return 0;
8257 }
8258 /* This function read the relevant field from the module (SFP+), and verify it
8259  * is compliant with this board
8260  */
bnx2x_verify_sfp_module(struct bnx2x_phy * phy,struct link_params * params)8261 static int bnx2x_verify_sfp_module(struct bnx2x_phy *phy,
8262 				   struct link_params *params)
8263 {
8264 	struct bnx2x *bp = params->bp;
8265 	u32 val, cmd;
8266 	u32 fw_resp, fw_cmd_param;
8267 	char vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE+1];
8268 	char vendor_pn[SFP_EEPROM_PART_NO_SIZE+1];
8269 	phy->flags &= ~FLAGS_SFP_NOT_APPROVED;
8270 	val = REG_RD(bp, params->shmem_base +
8271 			 offsetof(struct shmem_region, dev_info.
8272 				  port_feature_config[params->port].config));
8273 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8274 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_NO_ENFORCEMENT) {
8275 		DP(NETIF_MSG_LINK, "NOT enforcing module verification\n");
8276 		return 0;
8277 	}
8278 
8279 	if (params->feature_config_flags &
8280 	    FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY) {
8281 		/* Use specific phy request */
8282 		cmd = DRV_MSG_CODE_VRFY_SPECIFIC_PHY_OPT_MDL;
8283 	} else if (params->feature_config_flags &
8284 		   FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY) {
8285 		/* Use first phy request only in case of non-dual media*/
8286 		if (DUAL_MEDIA(params)) {
8287 			DP(NETIF_MSG_LINK,
8288 			   "FW does not support OPT MDL verification\n");
8289 			return -EINVAL;
8290 		}
8291 		cmd = DRV_MSG_CODE_VRFY_FIRST_PHY_OPT_MDL;
8292 	} else {
8293 		/* No support in OPT MDL detection */
8294 		DP(NETIF_MSG_LINK,
8295 		   "FW does not support OPT MDL verification\n");
8296 		return -EINVAL;
8297 	}
8298 
8299 	fw_cmd_param = FW_PARAM_SET(phy->addr, phy->type, phy->mdio_ctrl);
8300 	fw_resp = bnx2x_fw_command(bp, cmd, fw_cmd_param);
8301 	if (fw_resp == FW_MSG_CODE_VRFY_OPT_MDL_SUCCESS) {
8302 		DP(NETIF_MSG_LINK, "Approved module\n");
8303 		return 0;
8304 	}
8305 
8306 	/* Format the warning message */
8307 	if (bnx2x_read_sfp_module_eeprom(phy,
8308 					 params,
8309 					 I2C_DEV_ADDR_A0,
8310 					 SFP_EEPROM_VENDOR_NAME_ADDR,
8311 					 SFP_EEPROM_VENDOR_NAME_SIZE,
8312 					 (u8 *)vendor_name))
8313 		vendor_name[0] = '\0';
8314 	else
8315 		vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE] = '\0';
8316 	if (bnx2x_read_sfp_module_eeprom(phy,
8317 					 params,
8318 					 I2C_DEV_ADDR_A0,
8319 					 SFP_EEPROM_PART_NO_ADDR,
8320 					 SFP_EEPROM_PART_NO_SIZE,
8321 					 (u8 *)vendor_pn))
8322 		vendor_pn[0] = '\0';
8323 	else
8324 		vendor_pn[SFP_EEPROM_PART_NO_SIZE] = '\0';
8325 
8326 	netdev_err(bp->dev,  "Warning: Unqualified SFP+ module detected,"
8327 			      " Port %d from %s part number %s\n",
8328 			 params->port, vendor_name, vendor_pn);
8329 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) !=
8330 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_WARNING_MSG)
8331 		phy->flags |= FLAGS_SFP_NOT_APPROVED;
8332 	return -EINVAL;
8333 }
8334 
bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy * phy,struct link_params * params)8335 static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
8336 						 struct link_params *params)
8337 
8338 {
8339 	u8 val;
8340 	int rc;
8341 	struct bnx2x *bp = params->bp;
8342 	u16 timeout;
8343 	/* Initialization time after hot-plug may take up to 300ms for
8344 	 * some phys type ( e.g. JDSU )
8345 	 */
8346 
8347 	for (timeout = 0; timeout < 60; timeout++) {
8348 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
8349 			rc = bnx2x_warpcore_read_sfp_module_eeprom(
8350 				phy, params, I2C_DEV_ADDR_A0, 1, 1, &val,
8351 				1);
8352 		else
8353 			rc = bnx2x_read_sfp_module_eeprom(phy, params,
8354 							  I2C_DEV_ADDR_A0,
8355 							  1, 1, &val);
8356 		if (rc == 0) {
8357 			DP(NETIF_MSG_LINK,
8358 			   "SFP+ module initialization took %d ms\n",
8359 			   timeout * 5);
8360 			return 0;
8361 		}
8362 		usleep_range(5000, 10000);
8363 	}
8364 	rc = bnx2x_read_sfp_module_eeprom(phy, params, I2C_DEV_ADDR_A0,
8365 					  1, 1, &val);
8366 	return rc;
8367 }
8368 
bnx2x_8727_power_module(struct bnx2x * bp,struct bnx2x_phy * phy,u8 is_power_up)8369 static void bnx2x_8727_power_module(struct bnx2x *bp,
8370 				    struct bnx2x_phy *phy,
8371 				    u8 is_power_up) {
8372 	/* Make sure GPIOs are not using for LED mode */
8373 	u16 val;
8374 	/* In the GPIO register, bit 4 is use to determine if the GPIOs are
8375 	 * operating as INPUT or as OUTPUT. Bit 1 is for input, and 0 for
8376 	 * output
8377 	 * Bits 0-1 determine the GPIOs value for OUTPUT in case bit 4 val is 0
8378 	 * Bits 8-9 determine the GPIOs value for INPUT in case bit 4 val is 1
8379 	 * where the 1st bit is the over-current(only input), and 2nd bit is
8380 	 * for power( only output )
8381 	 *
8382 	 * In case of NOC feature is disabled and power is up, set GPIO control
8383 	 *  as input to enable listening of over-current indication
8384 	 */
8385 	if (phy->flags & FLAGS_NOC)
8386 		return;
8387 	if (is_power_up)
8388 		val = (1<<4);
8389 	else
8390 		/* Set GPIO control to OUTPUT, and set the power bit
8391 		 * to according to the is_power_up
8392 		 */
8393 		val = (1<<1);
8394 
8395 	bnx2x_cl45_write(bp, phy,
8396 			 MDIO_PMA_DEVAD,
8397 			 MDIO_PMA_REG_8727_GPIO_CTRL,
8398 			 val);
8399 }
8400 
bnx2x_8726_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8401 static int bnx2x_8726_set_limiting_mode(struct bnx2x *bp,
8402 					struct bnx2x_phy *phy,
8403 					u16 edc_mode)
8404 {
8405 	u16 cur_limiting_mode;
8406 
8407 	bnx2x_cl45_read(bp, phy,
8408 			MDIO_PMA_DEVAD,
8409 			MDIO_PMA_REG_ROM_VER2,
8410 			&cur_limiting_mode);
8411 	DP(NETIF_MSG_LINK, "Current Limiting mode is 0x%x\n",
8412 		 cur_limiting_mode);
8413 
8414 	if (edc_mode == EDC_MODE_LIMITING) {
8415 		DP(NETIF_MSG_LINK, "Setting LIMITING MODE\n");
8416 		bnx2x_cl45_write(bp, phy,
8417 				 MDIO_PMA_DEVAD,
8418 				 MDIO_PMA_REG_ROM_VER2,
8419 				 EDC_MODE_LIMITING);
8420 	} else { /* LRM mode ( default )*/
8421 
8422 		DP(NETIF_MSG_LINK, "Setting LRM MODE\n");
8423 
8424 		/* Changing to LRM mode takes quite few seconds. So do it only
8425 		 * if current mode is limiting (default is LRM)
8426 		 */
8427 		if (cur_limiting_mode != EDC_MODE_LIMITING)
8428 			return 0;
8429 
8430 		bnx2x_cl45_write(bp, phy,
8431 				 MDIO_PMA_DEVAD,
8432 				 MDIO_PMA_REG_LRM_MODE,
8433 				 0);
8434 		bnx2x_cl45_write(bp, phy,
8435 				 MDIO_PMA_DEVAD,
8436 				 MDIO_PMA_REG_ROM_VER2,
8437 				 0x128);
8438 		bnx2x_cl45_write(bp, phy,
8439 				 MDIO_PMA_DEVAD,
8440 				 MDIO_PMA_REG_MISC_CTRL0,
8441 				 0x4008);
8442 		bnx2x_cl45_write(bp, phy,
8443 				 MDIO_PMA_DEVAD,
8444 				 MDIO_PMA_REG_LRM_MODE,
8445 				 0xaaaa);
8446 	}
8447 	return 0;
8448 }
8449 
bnx2x_8727_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8450 static int bnx2x_8727_set_limiting_mode(struct bnx2x *bp,
8451 					struct bnx2x_phy *phy,
8452 					u16 edc_mode)
8453 {
8454 	u16 phy_identifier;
8455 	u16 rom_ver2_val;
8456 	bnx2x_cl45_read(bp, phy,
8457 			MDIO_PMA_DEVAD,
8458 			MDIO_PMA_REG_PHY_IDENTIFIER,
8459 			&phy_identifier);
8460 
8461 	bnx2x_cl45_write(bp, phy,
8462 			 MDIO_PMA_DEVAD,
8463 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8464 			 (phy_identifier & ~(1<<9)));
8465 
8466 	bnx2x_cl45_read(bp, phy,
8467 			MDIO_PMA_DEVAD,
8468 			MDIO_PMA_REG_ROM_VER2,
8469 			&rom_ver2_val);
8470 	/* Keep the MSB 8-bits, and set the LSB 8-bits with the edc_mode */
8471 	bnx2x_cl45_write(bp, phy,
8472 			 MDIO_PMA_DEVAD,
8473 			 MDIO_PMA_REG_ROM_VER2,
8474 			 (rom_ver2_val & 0xff00) | (edc_mode & 0x00ff));
8475 
8476 	bnx2x_cl45_write(bp, phy,
8477 			 MDIO_PMA_DEVAD,
8478 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8479 			 (phy_identifier | (1<<9)));
8480 
8481 	return 0;
8482 }
8483 
bnx2x_8727_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)8484 static void bnx2x_8727_specific_func(struct bnx2x_phy *phy,
8485 				     struct link_params *params,
8486 				     u32 action)
8487 {
8488 	struct bnx2x *bp = params->bp;
8489 	u16 val;
8490 	switch (action) {
8491 	case DISABLE_TX:
8492 		bnx2x_sfp_set_transmitter(params, phy, 0);
8493 		break;
8494 	case ENABLE_TX:
8495 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED))
8496 			bnx2x_sfp_set_transmitter(params, phy, 1);
8497 		break;
8498 	case PHY_INIT:
8499 		bnx2x_cl45_write(bp, phy,
8500 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8501 				 (1<<2) | (1<<5));
8502 		bnx2x_cl45_write(bp, phy,
8503 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8504 				 0);
8505 		bnx2x_cl45_write(bp, phy,
8506 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x0006);
8507 		/* Make MOD_ABS give interrupt on change */
8508 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8509 				MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8510 				&val);
8511 		val |= (1<<12);
8512 		if (phy->flags & FLAGS_NOC)
8513 			val |= (3<<5);
8514 		/* Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
8515 		 * status which reflect SFP+ module over-current
8516 		 */
8517 		if (!(phy->flags & FLAGS_NOC))
8518 			val &= 0xff8f; /* Reset bits 4-6 */
8519 		bnx2x_cl45_write(bp, phy,
8520 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8521 				 val);
8522 		break;
8523 	default:
8524 		DP(NETIF_MSG_LINK, "Function 0x%x not supported by 8727\n",
8525 		   action);
8526 		return;
8527 	}
8528 }
8529 
bnx2x_set_e1e2_module_fault_led(struct link_params * params,u8 gpio_mode)8530 static void bnx2x_set_e1e2_module_fault_led(struct link_params *params,
8531 					   u8 gpio_mode)
8532 {
8533 	struct bnx2x *bp = params->bp;
8534 
8535 	u32 fault_led_gpio = REG_RD(bp, params->shmem_base +
8536 			    offsetof(struct shmem_region,
8537 			dev_info.port_hw_config[params->port].sfp_ctrl)) &
8538 		PORT_HW_CFG_FAULT_MODULE_LED_MASK;
8539 	switch (fault_led_gpio) {
8540 	case PORT_HW_CFG_FAULT_MODULE_LED_DISABLED:
8541 		return;
8542 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO0:
8543 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO1:
8544 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO2:
8545 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO3:
8546 	{
8547 		u8 gpio_port = bnx2x_get_gpio_port(params);
8548 		u16 gpio_pin = fault_led_gpio -
8549 			PORT_HW_CFG_FAULT_MODULE_LED_GPIO0;
8550 		DP(NETIF_MSG_LINK, "Set fault module-detected led "
8551 				   "pin %x port %x mode %x\n",
8552 			       gpio_pin, gpio_port, gpio_mode);
8553 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
8554 	}
8555 	break;
8556 	default:
8557 		DP(NETIF_MSG_LINK, "Error: Invalid fault led mode 0x%x\n",
8558 			       fault_led_gpio);
8559 	}
8560 }
8561 
bnx2x_set_e3_module_fault_led(struct link_params * params,u8 gpio_mode)8562 static void bnx2x_set_e3_module_fault_led(struct link_params *params,
8563 					  u8 gpio_mode)
8564 {
8565 	u32 pin_cfg;
8566 	u8 port = params->port;
8567 	struct bnx2x *bp = params->bp;
8568 	pin_cfg = (REG_RD(bp, params->shmem_base +
8569 			 offsetof(struct shmem_region,
8570 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
8571 		PORT_HW_CFG_E3_FAULT_MDL_LED_MASK) >>
8572 		PORT_HW_CFG_E3_FAULT_MDL_LED_SHIFT;
8573 	DP(NETIF_MSG_LINK, "Setting Fault LED to %d using pin cfg %d\n",
8574 		       gpio_mode, pin_cfg);
8575 	bnx2x_set_cfg_pin(bp, pin_cfg, gpio_mode);
8576 }
8577 
bnx2x_set_sfp_module_fault_led(struct link_params * params,u8 gpio_mode)8578 static void bnx2x_set_sfp_module_fault_led(struct link_params *params,
8579 					   u8 gpio_mode)
8580 {
8581 	struct bnx2x *bp = params->bp;
8582 	DP(NETIF_MSG_LINK, "Setting SFP+ module fault LED to %d\n", gpio_mode);
8583 	if (CHIP_IS_E3(bp)) {
8584 		/* Low ==> if SFP+ module is supported otherwise
8585 		 * High ==> if SFP+ module is not on the approved vendor list
8586 		 */
8587 		bnx2x_set_e3_module_fault_led(params, gpio_mode);
8588 	} else
8589 		bnx2x_set_e1e2_module_fault_led(params, gpio_mode);
8590 }
8591 
bnx2x_warpcore_hw_reset(struct bnx2x_phy * phy,struct link_params * params)8592 static void bnx2x_warpcore_hw_reset(struct bnx2x_phy *phy,
8593 				    struct link_params *params)
8594 {
8595 	struct bnx2x *bp = params->bp;
8596 	bnx2x_warpcore_power_module(params, 0);
8597 	/* Put Warpcore in low power mode */
8598 	REG_WR(bp, MISC_REG_WC0_RESET, 0x0c0e);
8599 
8600 	/* Put LCPLL in low power mode */
8601 	REG_WR(bp, MISC_REG_LCPLL_E40_PWRDWN, 1);
8602 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_ANA, 0);
8603 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_DIG, 0);
8604 }
8605 
bnx2x_power_sfp_module(struct link_params * params,struct bnx2x_phy * phy,u8 power)8606 static void bnx2x_power_sfp_module(struct link_params *params,
8607 				   struct bnx2x_phy *phy,
8608 				   u8 power)
8609 {
8610 	struct bnx2x *bp = params->bp;
8611 	DP(NETIF_MSG_LINK, "Setting SFP+ power to %x\n", power);
8612 
8613 	switch (phy->type) {
8614 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8615 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8616 		bnx2x_8727_power_module(params->bp, phy, power);
8617 		break;
8618 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8619 		bnx2x_warpcore_power_module(params, power);
8620 		break;
8621 	default:
8622 		break;
8623 	}
8624 }
bnx2x_warpcore_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8625 static void bnx2x_warpcore_set_limiting_mode(struct link_params *params,
8626 					     struct bnx2x_phy *phy,
8627 					     u16 edc_mode)
8628 {
8629 	u16 val = 0;
8630 	u16 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8631 	struct bnx2x *bp = params->bp;
8632 
8633 	u8 lane = bnx2x_get_warpcore_lane(phy, params);
8634 	/* This is a global register which controls all lanes */
8635 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8636 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8637 	val &= ~(0xf << (lane << 2));
8638 
8639 	switch (edc_mode) {
8640 	case EDC_MODE_LINEAR:
8641 	case EDC_MODE_LIMITING:
8642 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8643 		break;
8644 	case EDC_MODE_PASSIVE_DAC:
8645 	case EDC_MODE_ACTIVE_DAC:
8646 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
8647 		break;
8648 	default:
8649 		break;
8650 	}
8651 
8652 	val |= (mode << (lane << 2));
8653 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
8654 			 MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, val);
8655 	/* A must read */
8656 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8657 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8658 
8659 	/* Restart microcode to re-read the new mode */
8660 	bnx2x_warpcore_reset_lane(bp, phy, 1);
8661 	bnx2x_warpcore_reset_lane(bp, phy, 0);
8662 
8663 }
8664 
bnx2x_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8665 static void bnx2x_set_limiting_mode(struct link_params *params,
8666 				    struct bnx2x_phy *phy,
8667 				    u16 edc_mode)
8668 {
8669 	switch (phy->type) {
8670 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8671 		bnx2x_8726_set_limiting_mode(params->bp, phy, edc_mode);
8672 		break;
8673 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8674 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8675 		bnx2x_8727_set_limiting_mode(params->bp, phy, edc_mode);
8676 		break;
8677 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8678 		bnx2x_warpcore_set_limiting_mode(params, phy, edc_mode);
8679 		break;
8680 	}
8681 }
8682 
bnx2x_sfp_module_detection(struct bnx2x_phy * phy,struct link_params * params)8683 static int bnx2x_sfp_module_detection(struct bnx2x_phy *phy,
8684 				      struct link_params *params)
8685 {
8686 	struct bnx2x *bp = params->bp;
8687 	u16 edc_mode;
8688 	int rc = 0;
8689 
8690 	u32 val = REG_RD(bp, params->shmem_base +
8691 			     offsetof(struct shmem_region, dev_info.
8692 				     port_feature_config[params->port].config));
8693 	/* Enabled transmitter by default */
8694 	bnx2x_sfp_set_transmitter(params, phy, 1);
8695 	DP(NETIF_MSG_LINK, "SFP+ module plugged in/out detected on port %d\n",
8696 		 params->port);
8697 	/* Power up module */
8698 	bnx2x_power_sfp_module(params, phy, 1);
8699 	if (bnx2x_get_edc_mode(phy, params, &edc_mode) != 0) {
8700 		DP(NETIF_MSG_LINK, "Failed to get valid module type\n");
8701 		return -EINVAL;
8702 	} else if (bnx2x_verify_sfp_module(phy, params) != 0) {
8703 		/* Check SFP+ module compatibility */
8704 		DP(NETIF_MSG_LINK, "Module verification failed!!\n");
8705 		rc = -EINVAL;
8706 		/* Turn on fault module-detected led */
8707 		bnx2x_set_sfp_module_fault_led(params,
8708 					       MISC_REGISTERS_GPIO_HIGH);
8709 
8710 		/* Check if need to power down the SFP+ module */
8711 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8712 		     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_POWER_DOWN) {
8713 			DP(NETIF_MSG_LINK, "Shutdown SFP+ module!!\n");
8714 			bnx2x_power_sfp_module(params, phy, 0);
8715 			return rc;
8716 		}
8717 	} else {
8718 		/* Turn off fault module-detected led */
8719 		bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_LOW);
8720 	}
8721 
8722 	/* Check and set limiting mode / LRM mode on 8726. On 8727 it
8723 	 * is done automatically
8724 	 */
8725 	bnx2x_set_limiting_mode(params, phy, edc_mode);
8726 
8727 	/* Disable transmit for this module if the module is not approved, and
8728 	 * laser needs to be disabled.
8729 	 */
8730 	if ((rc) &&
8731 	    ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8732 	     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER))
8733 		bnx2x_sfp_set_transmitter(params, phy, 0);
8734 
8735 	return rc;
8736 }
8737 
bnx2x_handle_module_detect_int(struct link_params * params)8738 void bnx2x_handle_module_detect_int(struct link_params *params)
8739 {
8740 	struct bnx2x *bp = params->bp;
8741 	struct bnx2x_phy *phy;
8742 	u32 gpio_val;
8743 	u8 gpio_num, gpio_port;
8744 	if (CHIP_IS_E3(bp)) {
8745 		phy = &params->phy[INT_PHY];
8746 		/* Always enable TX laser,will be disabled in case of fault */
8747 		bnx2x_sfp_set_transmitter(params, phy, 1);
8748 	} else {
8749 		phy = &params->phy[EXT_PHY1];
8750 	}
8751 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id, params->shmem_base,
8752 				      params->port, &gpio_num, &gpio_port) ==
8753 	    -EINVAL) {
8754 		DP(NETIF_MSG_LINK, "Failed to get MOD_ABS interrupt config\n");
8755 		return;
8756 	}
8757 
8758 	/* Set valid module led off */
8759 	bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_HIGH);
8760 
8761 	/* Get current gpio val reflecting module plugged in / out*/
8762 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
8763 
8764 	/* Call the handling function in case module is detected */
8765 	if (gpio_val == 0) {
8766 		bnx2x_set_mdio_emac_per_phy(bp, params);
8767 		bnx2x_set_aer_mmd(params, phy);
8768 
8769 		bnx2x_power_sfp_module(params, phy, 1);
8770 		bnx2x_set_gpio_int(bp, gpio_num,
8771 				   MISC_REGISTERS_GPIO_INT_OUTPUT_CLR,
8772 				   gpio_port);
8773 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0) {
8774 			bnx2x_sfp_module_detection(phy, params);
8775 			if (CHIP_IS_E3(bp)) {
8776 				u16 rx_tx_in_reset;
8777 				/* In case WC is out of reset, reconfigure the
8778 				 * link speed while taking into account 1G
8779 				 * module limitation.
8780 				 */
8781 				bnx2x_cl45_read(bp, phy,
8782 						MDIO_WC_DEVAD,
8783 						MDIO_WC_REG_DIGITAL5_MISC6,
8784 						&rx_tx_in_reset);
8785 				if ((!rx_tx_in_reset) &&
8786 				    (params->link_flags &
8787 				     PHY_INITIALIZED)) {
8788 					bnx2x_warpcore_reset_lane(bp, phy, 1);
8789 					bnx2x_warpcore_config_sfi(phy, params);
8790 					bnx2x_warpcore_reset_lane(bp, phy, 0);
8791 				}
8792 			}
8793 		} else {
8794 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
8795 		}
8796 	} else {
8797 		bnx2x_set_gpio_int(bp, gpio_num,
8798 				   MISC_REGISTERS_GPIO_INT_OUTPUT_SET,
8799 				   gpio_port);
8800 		/* Module was plugged out.
8801 		 * Disable transmit for this module
8802 		 */
8803 		phy->media_type = ETH_PHY_NOT_PRESENT;
8804 	}
8805 }
8806 
8807 /******************************************************************/
8808 /*		Used by 8706 and 8727                             */
8809 /******************************************************************/
bnx2x_sfp_mask_fault(struct bnx2x * bp,struct bnx2x_phy * phy,u16 alarm_status_offset,u16 alarm_ctrl_offset)8810 static void bnx2x_sfp_mask_fault(struct bnx2x *bp,
8811 				 struct bnx2x_phy *phy,
8812 				 u16 alarm_status_offset,
8813 				 u16 alarm_ctrl_offset)
8814 {
8815 	u16 alarm_status, val;
8816 	bnx2x_cl45_read(bp, phy,
8817 			MDIO_PMA_DEVAD, alarm_status_offset,
8818 			&alarm_status);
8819 	bnx2x_cl45_read(bp, phy,
8820 			MDIO_PMA_DEVAD, alarm_status_offset,
8821 			&alarm_status);
8822 	/* Mask or enable the fault event. */
8823 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, &val);
8824 	if (alarm_status & (1<<0))
8825 		val &= ~(1<<0);
8826 	else
8827 		val |= (1<<0);
8828 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, val);
8829 }
8830 /******************************************************************/
8831 /*		common BCM8706/BCM8726 PHY SECTION		  */
8832 /******************************************************************/
bnx2x_8706_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8833 static u8 bnx2x_8706_8726_read_status(struct bnx2x_phy *phy,
8834 				      struct link_params *params,
8835 				      struct link_vars *vars)
8836 {
8837 	u8 link_up = 0;
8838 	u16 val1, val2, rx_sd, pcs_status;
8839 	struct bnx2x *bp = params->bp;
8840 	DP(NETIF_MSG_LINK, "XGXS 8706/8726\n");
8841 	/* Clear RX Alarm*/
8842 	bnx2x_cl45_read(bp, phy,
8843 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
8844 
8845 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
8846 			     MDIO_PMA_LASI_TXCTRL);
8847 
8848 	/* Clear LASI indication*/
8849 	bnx2x_cl45_read(bp, phy,
8850 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
8851 	bnx2x_cl45_read(bp, phy,
8852 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
8853 	DP(NETIF_MSG_LINK, "8706/8726 LASI status 0x%x--> 0x%x\n", val1, val2);
8854 
8855 	bnx2x_cl45_read(bp, phy,
8856 			MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
8857 	bnx2x_cl45_read(bp, phy,
8858 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &pcs_status);
8859 	bnx2x_cl45_read(bp, phy,
8860 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8861 	bnx2x_cl45_read(bp, phy,
8862 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8863 
8864 	DP(NETIF_MSG_LINK, "8706/8726 rx_sd 0x%x pcs_status 0x%x 1Gbps"
8865 			" link_status 0x%x\n", rx_sd, pcs_status, val2);
8866 	/* Link is up if both bit 0 of pmd_rx_sd and bit 0 of pcs_status
8867 	 * are set, or if the autoneg bit 1 is set
8868 	 */
8869 	link_up = ((rx_sd & pcs_status & 0x1) || (val2 & (1<<1)));
8870 	if (link_up) {
8871 		if (val2 & (1<<1))
8872 			vars->line_speed = SPEED_1000;
8873 		else
8874 			vars->line_speed = SPEED_10000;
8875 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
8876 		vars->duplex = DUPLEX_FULL;
8877 	}
8878 
8879 	/* Capture 10G link fault. Read twice to clear stale value. */
8880 	if (vars->line_speed == SPEED_10000) {
8881 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8882 			    MDIO_PMA_LASI_TXSTAT, &val1);
8883 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8884 			    MDIO_PMA_LASI_TXSTAT, &val1);
8885 		if (val1 & (1<<0))
8886 			vars->fault_detected = 1;
8887 	}
8888 
8889 	return link_up;
8890 }
8891 
8892 /******************************************************************/
8893 /*			BCM8706 PHY SECTION			  */
8894 /******************************************************************/
bnx2x_8706_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8895 static void bnx2x_8706_config_init(struct bnx2x_phy *phy,
8896 				   struct link_params *params,
8897 				   struct link_vars *vars)
8898 {
8899 	u32 tx_en_mode;
8900 	u16 cnt, val, tmp1;
8901 	struct bnx2x *bp = params->bp;
8902 
8903 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
8904 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
8905 	/* HW reset */
8906 	bnx2x_ext_phy_hw_reset(bp, params->port);
8907 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
8908 	bnx2x_wait_reset_complete(bp, phy, params);
8909 
8910 	/* Wait until fw is loaded */
8911 	for (cnt = 0; cnt < 100; cnt++) {
8912 		bnx2x_cl45_read(bp, phy,
8913 				MDIO_PMA_DEVAD, MDIO_PMA_REG_ROM_VER1, &val);
8914 		if (val)
8915 			break;
8916 		usleep_range(10000, 20000);
8917 	}
8918 	DP(NETIF_MSG_LINK, "XGXS 8706 is initialized after %d ms\n", cnt);
8919 	if ((params->feature_config_flags &
8920 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
8921 		u8 i;
8922 		u16 reg;
8923 		for (i = 0; i < 4; i++) {
8924 			reg = MDIO_XS_8706_REG_BANK_RX0 +
8925 				i*(MDIO_XS_8706_REG_BANK_RX1 -
8926 				   MDIO_XS_8706_REG_BANK_RX0);
8927 			bnx2x_cl45_read(bp, phy, MDIO_XS_DEVAD, reg, &val);
8928 			/* Clear first 3 bits of the control */
8929 			val &= ~0x7;
8930 			/* Set control bits according to configuration */
8931 			val |= (phy->rx_preemphasis[i] & 0x7);
8932 			DP(NETIF_MSG_LINK, "Setting RX Equalizer to BCM8706"
8933 				   " reg 0x%x <-- val 0x%x\n", reg, val);
8934 			bnx2x_cl45_write(bp, phy, MDIO_XS_DEVAD, reg, val);
8935 		}
8936 	}
8937 	/* Force speed */
8938 	if (phy->req_line_speed == SPEED_10000) {
8939 		DP(NETIF_MSG_LINK, "XGXS 8706 force 10Gbps\n");
8940 
8941 		bnx2x_cl45_write(bp, phy,
8942 				 MDIO_PMA_DEVAD,
8943 				 MDIO_PMA_REG_DIGITAL_CTRL, 0x400);
8944 		bnx2x_cl45_write(bp, phy,
8945 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8946 				 0);
8947 		/* Arm LASI for link and Tx fault. */
8948 		bnx2x_cl45_write(bp, phy,
8949 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 3);
8950 	} else {
8951 		/* Force 1Gbps using autoneg with 1G advertisement */
8952 
8953 		/* Allow CL37 through CL73 */
8954 		DP(NETIF_MSG_LINK, "XGXS 8706 AutoNeg\n");
8955 		bnx2x_cl45_write(bp, phy,
8956 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
8957 
8958 		/* Enable Full-Duplex advertisement on CL37 */
8959 		bnx2x_cl45_write(bp, phy,
8960 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LP, 0x0020);
8961 		/* Enable CL37 AN */
8962 		bnx2x_cl45_write(bp, phy,
8963 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
8964 		/* 1G support */
8965 		bnx2x_cl45_write(bp, phy,
8966 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, (1<<5));
8967 
8968 		/* Enable clause 73 AN */
8969 		bnx2x_cl45_write(bp, phy,
8970 				 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
8971 		bnx2x_cl45_write(bp, phy,
8972 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8973 				 0x0400);
8974 		bnx2x_cl45_write(bp, phy,
8975 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
8976 				 0x0004);
8977 	}
8978 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
8979 
8980 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
8981 	 * power mode, if TX Laser is disabled
8982 	 */
8983 
8984 	tx_en_mode = REG_RD(bp, params->shmem_base +
8985 			    offsetof(struct shmem_region,
8986 				dev_info.port_hw_config[params->port].sfp_ctrl))
8987 			& PORT_HW_CFG_TX_LASER_MASK;
8988 
8989 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
8990 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
8991 		bnx2x_cl45_read(bp, phy,
8992 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, &tmp1);
8993 		tmp1 |= 0x1;
8994 		bnx2x_cl45_write(bp, phy,
8995 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
8996 	}
8997 }
8998 
bnx2x_8706_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8999 static u8 bnx2x_8706_read_status(struct bnx2x_phy *phy,
9000 				 struct link_params *params,
9001 				 struct link_vars *vars)
9002 {
9003 	return bnx2x_8706_8726_read_status(phy, params, vars);
9004 }
9005 
9006 /******************************************************************/
9007 /*			BCM8726 PHY SECTION			  */
9008 /******************************************************************/
bnx2x_8726_config_loopback(struct bnx2x_phy * phy,struct link_params * params)9009 static void bnx2x_8726_config_loopback(struct bnx2x_phy *phy,
9010 				       struct link_params *params)
9011 {
9012 	struct bnx2x *bp = params->bp;
9013 	DP(NETIF_MSG_LINK, "PMA/PMD ext_phy_loopback: 8726\n");
9014 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0001);
9015 }
9016 
bnx2x_8726_external_rom_boot(struct bnx2x_phy * phy,struct link_params * params)9017 static void bnx2x_8726_external_rom_boot(struct bnx2x_phy *phy,
9018 					 struct link_params *params)
9019 {
9020 	struct bnx2x *bp = params->bp;
9021 	/* Need to wait 100ms after reset */
9022 	msleep(100);
9023 
9024 	/* Micro controller re-boot */
9025 	bnx2x_cl45_write(bp, phy,
9026 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x018B);
9027 
9028 	/* Set soft reset */
9029 	bnx2x_cl45_write(bp, phy,
9030 			 MDIO_PMA_DEVAD,
9031 			 MDIO_PMA_REG_GEN_CTRL,
9032 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
9033 
9034 	bnx2x_cl45_write(bp, phy,
9035 			 MDIO_PMA_DEVAD,
9036 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
9037 
9038 	bnx2x_cl45_write(bp, phy,
9039 			 MDIO_PMA_DEVAD,
9040 			 MDIO_PMA_REG_GEN_CTRL,
9041 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
9042 
9043 	/* Wait for 150ms for microcode load */
9044 	msleep(150);
9045 
9046 	/* Disable serial boot control, tristates pins SS_N, SCK, MOSI, MISO */
9047 	bnx2x_cl45_write(bp, phy,
9048 			 MDIO_PMA_DEVAD,
9049 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
9050 
9051 	msleep(200);
9052 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
9053 }
9054 
bnx2x_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9055 static u8 bnx2x_8726_read_status(struct bnx2x_phy *phy,
9056 				 struct link_params *params,
9057 				 struct link_vars *vars)
9058 {
9059 	struct bnx2x *bp = params->bp;
9060 	u16 val1;
9061 	u8 link_up = bnx2x_8706_8726_read_status(phy, params, vars);
9062 	if (link_up) {
9063 		bnx2x_cl45_read(bp, phy,
9064 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
9065 				&val1);
9066 		if (val1 & (1<<15)) {
9067 			DP(NETIF_MSG_LINK, "Tx is disabled\n");
9068 			link_up = 0;
9069 			vars->line_speed = 0;
9070 		}
9071 	}
9072 	return link_up;
9073 }
9074 
9075 
bnx2x_8726_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9076 static void bnx2x_8726_config_init(struct bnx2x_phy *phy,
9077 				   struct link_params *params,
9078 				   struct link_vars *vars)
9079 {
9080 	struct bnx2x *bp = params->bp;
9081 	DP(NETIF_MSG_LINK, "Initializing BCM8726\n");
9082 
9083 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
9084 	bnx2x_wait_reset_complete(bp, phy, params);
9085 
9086 	bnx2x_8726_external_rom_boot(phy, params);
9087 
9088 	/* Need to call module detected on initialization since the module
9089 	 * detection triggered by actual module insertion might occur before
9090 	 * driver is loaded, and when driver is loaded, it reset all
9091 	 * registers, including the transmitter
9092 	 */
9093 	bnx2x_sfp_module_detection(phy, params);
9094 
9095 	if (phy->req_line_speed == SPEED_1000) {
9096 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
9097 		bnx2x_cl45_write(bp, phy,
9098 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
9099 		bnx2x_cl45_write(bp, phy,
9100 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
9101 		bnx2x_cl45_write(bp, phy,
9102 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x5);
9103 		bnx2x_cl45_write(bp, phy,
9104 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9105 				 0x400);
9106 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9107 		   (phy->speed_cap_mask &
9108 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) &&
9109 		   ((phy->speed_cap_mask &
9110 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
9111 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
9112 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
9113 		/* Set Flow control */
9114 		bnx2x_ext_phy_set_pause(params, phy, vars);
9115 		bnx2x_cl45_write(bp, phy,
9116 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, 0x20);
9117 		bnx2x_cl45_write(bp, phy,
9118 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
9119 		bnx2x_cl45_write(bp, phy,
9120 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, 0x0020);
9121 		bnx2x_cl45_write(bp, phy,
9122 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
9123 		bnx2x_cl45_write(bp, phy,
9124 				MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
9125 		/* Enable RX-ALARM control to receive interrupt for 1G speed
9126 		 * change
9127 		 */
9128 		bnx2x_cl45_write(bp, phy,
9129 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x4);
9130 		bnx2x_cl45_write(bp, phy,
9131 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9132 				 0x400);
9133 
9134 	} else { /* Default 10G. Set only LASI control */
9135 		bnx2x_cl45_write(bp, phy,
9136 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 1);
9137 	}
9138 
9139 	/* Set TX PreEmphasis if needed */
9140 	if ((params->feature_config_flags &
9141 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
9142 		DP(NETIF_MSG_LINK,
9143 		   "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
9144 			 phy->tx_preemphasis[0],
9145 			 phy->tx_preemphasis[1]);
9146 		bnx2x_cl45_write(bp, phy,
9147 				 MDIO_PMA_DEVAD,
9148 				 MDIO_PMA_REG_8726_TX_CTRL1,
9149 				 phy->tx_preemphasis[0]);
9150 
9151 		bnx2x_cl45_write(bp, phy,
9152 				 MDIO_PMA_DEVAD,
9153 				 MDIO_PMA_REG_8726_TX_CTRL2,
9154 				 phy->tx_preemphasis[1]);
9155 	}
9156 }
9157 
bnx2x_8726_link_reset(struct bnx2x_phy * phy,struct link_params * params)9158 static void bnx2x_8726_link_reset(struct bnx2x_phy *phy,
9159 				  struct link_params *params)
9160 {
9161 	struct bnx2x *bp = params->bp;
9162 	DP(NETIF_MSG_LINK, "bnx2x_8726_link_reset port %d\n", params->port);
9163 	/* Set serial boot control for external load */
9164 	bnx2x_cl45_write(bp, phy,
9165 			 MDIO_PMA_DEVAD,
9166 			 MDIO_PMA_REG_GEN_CTRL, 0x0001);
9167 }
9168 
9169 /******************************************************************/
9170 /*			BCM8727 PHY SECTION			  */
9171 /******************************************************************/
9172 
bnx2x_8727_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)9173 static void bnx2x_8727_set_link_led(struct bnx2x_phy *phy,
9174 				    struct link_params *params, u8 mode)
9175 {
9176 	struct bnx2x *bp = params->bp;
9177 	u16 led_mode_bitmask = 0;
9178 	u16 gpio_pins_bitmask = 0;
9179 	u16 val;
9180 	/* Only NOC flavor requires to set the LED specifically */
9181 	if (!(phy->flags & FLAGS_NOC))
9182 		return;
9183 	switch (mode) {
9184 	case LED_MODE_FRONT_PANEL_OFF:
9185 	case LED_MODE_OFF:
9186 		led_mode_bitmask = 0;
9187 		gpio_pins_bitmask = 0x03;
9188 		break;
9189 	case LED_MODE_ON:
9190 		led_mode_bitmask = 0;
9191 		gpio_pins_bitmask = 0x02;
9192 		break;
9193 	case LED_MODE_OPER:
9194 		led_mode_bitmask = 0x60;
9195 		gpio_pins_bitmask = 0x11;
9196 		break;
9197 	}
9198 	bnx2x_cl45_read(bp, phy,
9199 			MDIO_PMA_DEVAD,
9200 			MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9201 			&val);
9202 	val &= 0xff8f;
9203 	val |= led_mode_bitmask;
9204 	bnx2x_cl45_write(bp, phy,
9205 			 MDIO_PMA_DEVAD,
9206 			 MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9207 			 val);
9208 	bnx2x_cl45_read(bp, phy,
9209 			MDIO_PMA_DEVAD,
9210 			MDIO_PMA_REG_8727_GPIO_CTRL,
9211 			&val);
9212 	val &= 0xffe0;
9213 	val |= gpio_pins_bitmask;
9214 	bnx2x_cl45_write(bp, phy,
9215 			 MDIO_PMA_DEVAD,
9216 			 MDIO_PMA_REG_8727_GPIO_CTRL,
9217 			 val);
9218 }
bnx2x_8727_hw_reset(struct bnx2x_phy * phy,struct link_params * params)9219 static void bnx2x_8727_hw_reset(struct bnx2x_phy *phy,
9220 				struct link_params *params) {
9221 	u32 swap_val, swap_override;
9222 	u8 port;
9223 	/* The PHY reset is controlled by GPIO 1. Fake the port number
9224 	 * to cancel the swap done in set_gpio()
9225 	 */
9226 	struct bnx2x *bp = params->bp;
9227 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
9228 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
9229 	port = (swap_val && swap_override) ^ 1;
9230 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
9231 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
9232 }
9233 
bnx2x_8727_config_speed(struct bnx2x_phy * phy,struct link_params * params)9234 static void bnx2x_8727_config_speed(struct bnx2x_phy *phy,
9235 				    struct link_params *params)
9236 {
9237 	struct bnx2x *bp = params->bp;
9238 	u16 tmp1, val;
9239 	/* Set option 1G speed */
9240 	if ((phy->req_line_speed == SPEED_1000) ||
9241 	    (phy->media_type == ETH_PHY_SFP_1G_FIBER)) {
9242 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
9243 		bnx2x_cl45_write(bp, phy,
9244 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
9245 		bnx2x_cl45_write(bp, phy,
9246 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
9247 		bnx2x_cl45_read(bp, phy,
9248 				MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, &tmp1);
9249 		DP(NETIF_MSG_LINK, "1.7 = 0x%x\n", tmp1);
9250 		/* Power down the XAUI until link is up in case of dual-media
9251 		 * and 1G
9252 		 */
9253 		if (DUAL_MEDIA(params)) {
9254 			bnx2x_cl45_read(bp, phy,
9255 					MDIO_PMA_DEVAD,
9256 					MDIO_PMA_REG_8727_PCS_GP, &val);
9257 			val |= (3<<10);
9258 			bnx2x_cl45_write(bp, phy,
9259 					 MDIO_PMA_DEVAD,
9260 					 MDIO_PMA_REG_8727_PCS_GP, val);
9261 		}
9262 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9263 		   ((phy->speed_cap_mask &
9264 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) &&
9265 		   ((phy->speed_cap_mask &
9266 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
9267 		   PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
9268 
9269 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
9270 		bnx2x_cl45_write(bp, phy,
9271 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL, 0);
9272 		bnx2x_cl45_write(bp, phy,
9273 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1300);
9274 	} else {
9275 		/* Since the 8727 has only single reset pin, need to set the 10G
9276 		 * registers although it is default
9277 		 */
9278 		bnx2x_cl45_write(bp, phy,
9279 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL,
9280 				 0x0020);
9281 		bnx2x_cl45_write(bp, phy,
9282 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x0100);
9283 		bnx2x_cl45_write(bp, phy,
9284 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
9285 		bnx2x_cl45_write(bp, phy,
9286 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2,
9287 				 0x0008);
9288 	}
9289 }
9290 
bnx2x_8727_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9291 static void bnx2x_8727_config_init(struct bnx2x_phy *phy,
9292 				   struct link_params *params,
9293 				   struct link_vars *vars)
9294 {
9295 	u32 tx_en_mode;
9296 	u16 tmp1, mod_abs, tmp2;
9297 	struct bnx2x *bp = params->bp;
9298 	/* Enable PMD link, MOD_ABS_FLT, and 1G link alarm */
9299 
9300 	bnx2x_wait_reset_complete(bp, phy, params);
9301 
9302 	DP(NETIF_MSG_LINK, "Initializing BCM8727\n");
9303 
9304 	bnx2x_8727_specific_func(phy, params, PHY_INIT);
9305 	/* Initially configure MOD_ABS to interrupt when module is
9306 	 * presence( bit 8)
9307 	 */
9308 	bnx2x_cl45_read(bp, phy,
9309 			MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
9310 	/* Set EDC off by setting OPTXLOS signal input to low (bit 9).
9311 	 * When the EDC is off it locks onto a reference clock and avoids
9312 	 * becoming 'lost'
9313 	 */
9314 	mod_abs &= ~(1<<8);
9315 	if (!(phy->flags & FLAGS_NOC))
9316 		mod_abs &= ~(1<<9);
9317 	bnx2x_cl45_write(bp, phy,
9318 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9319 
9320 	/* Enable/Disable PHY transmitter output */
9321 	bnx2x_set_disable_pmd_transmit(params, phy, 0);
9322 
9323 	bnx2x_8727_power_module(bp, phy, 1);
9324 
9325 	bnx2x_cl45_read(bp, phy,
9326 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
9327 
9328 	bnx2x_cl45_read(bp, phy,
9329 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
9330 
9331 	bnx2x_8727_config_speed(phy, params);
9332 
9333 
9334 	/* Set TX PreEmphasis if needed */
9335 	if ((params->feature_config_flags &
9336 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
9337 		DP(NETIF_MSG_LINK, "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
9338 			   phy->tx_preemphasis[0],
9339 			   phy->tx_preemphasis[1]);
9340 		bnx2x_cl45_write(bp, phy,
9341 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL1,
9342 				 phy->tx_preemphasis[0]);
9343 
9344 		bnx2x_cl45_write(bp, phy,
9345 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL2,
9346 				 phy->tx_preemphasis[1]);
9347 	}
9348 
9349 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
9350 	 * power mode, if TX Laser is disabled
9351 	 */
9352 	tx_en_mode = REG_RD(bp, params->shmem_base +
9353 			    offsetof(struct shmem_region,
9354 				dev_info.port_hw_config[params->port].sfp_ctrl))
9355 			& PORT_HW_CFG_TX_LASER_MASK;
9356 
9357 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
9358 
9359 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
9360 		bnx2x_cl45_read(bp, phy,
9361 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, &tmp2);
9362 		tmp2 |= 0x1000;
9363 		tmp2 &= 0xFFEF;
9364 		bnx2x_cl45_write(bp, phy,
9365 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, tmp2);
9366 		bnx2x_cl45_read(bp, phy,
9367 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
9368 				&tmp2);
9369 		bnx2x_cl45_write(bp, phy,
9370 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
9371 				 (tmp2 & 0x7fff));
9372 	}
9373 }
9374 
bnx2x_8727_handle_mod_abs(struct bnx2x_phy * phy,struct link_params * params)9375 static void bnx2x_8727_handle_mod_abs(struct bnx2x_phy *phy,
9376 				      struct link_params *params)
9377 {
9378 	struct bnx2x *bp = params->bp;
9379 	u16 mod_abs, rx_alarm_status;
9380 	u32 val = REG_RD(bp, params->shmem_base +
9381 			     offsetof(struct shmem_region, dev_info.
9382 				      port_feature_config[params->port].
9383 				      config));
9384 	bnx2x_cl45_read(bp, phy,
9385 			MDIO_PMA_DEVAD,
9386 			MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
9387 	if (mod_abs & (1<<8)) {
9388 
9389 		/* Module is absent */
9390 		DP(NETIF_MSG_LINK,
9391 		   "MOD_ABS indication show module is absent\n");
9392 		phy->media_type = ETH_PHY_NOT_PRESENT;
9393 		/* 1. Set mod_abs to detect next module
9394 		 *    presence event
9395 		 * 2. Set EDC off by setting OPTXLOS signal input to low
9396 		 *    (bit 9).
9397 		 *    When the EDC is off it locks onto a reference clock and
9398 		 *    avoids becoming 'lost'.
9399 		 */
9400 		mod_abs &= ~(1<<8);
9401 		if (!(phy->flags & FLAGS_NOC))
9402 			mod_abs &= ~(1<<9);
9403 		bnx2x_cl45_write(bp, phy,
9404 				 MDIO_PMA_DEVAD,
9405 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9406 
9407 		/* Clear RX alarm since it stays up as long as
9408 		 * the mod_abs wasn't changed
9409 		 */
9410 		bnx2x_cl45_read(bp, phy,
9411 				MDIO_PMA_DEVAD,
9412 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9413 
9414 	} else {
9415 		/* Module is present */
9416 		DP(NETIF_MSG_LINK,
9417 		   "MOD_ABS indication show module is present\n");
9418 		/* First disable transmitter, and if the module is ok, the
9419 		 * module_detection will enable it
9420 		 * 1. Set mod_abs to detect next module absent event ( bit 8)
9421 		 * 2. Restore the default polarity of the OPRXLOS signal and
9422 		 * this signal will then correctly indicate the presence or
9423 		 * absence of the Rx signal. (bit 9)
9424 		 */
9425 		mod_abs |= (1<<8);
9426 		if (!(phy->flags & FLAGS_NOC))
9427 			mod_abs |= (1<<9);
9428 		bnx2x_cl45_write(bp, phy,
9429 				 MDIO_PMA_DEVAD,
9430 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9431 
9432 		/* Clear RX alarm since it stays up as long as the mod_abs
9433 		 * wasn't changed. This is need to be done before calling the
9434 		 * module detection, otherwise it will clear* the link update
9435 		 * alarm
9436 		 */
9437 		bnx2x_cl45_read(bp, phy,
9438 				MDIO_PMA_DEVAD,
9439 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9440 
9441 
9442 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9443 		    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER)
9444 			bnx2x_sfp_set_transmitter(params, phy, 0);
9445 
9446 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0)
9447 			bnx2x_sfp_module_detection(phy, params);
9448 		else
9449 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
9450 
9451 		/* Reconfigure link speed based on module type limitations */
9452 		bnx2x_8727_config_speed(phy, params);
9453 	}
9454 
9455 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS 0x%x\n",
9456 		   rx_alarm_status);
9457 	/* No need to check link status in case of module plugged in/out */
9458 }
9459 
bnx2x_8727_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9460 static u8 bnx2x_8727_read_status(struct bnx2x_phy *phy,
9461 				 struct link_params *params,
9462 				 struct link_vars *vars)
9463 
9464 {
9465 	struct bnx2x *bp = params->bp;
9466 	u8 link_up = 0, oc_port = params->port;
9467 	u16 link_status = 0;
9468 	u16 rx_alarm_status, lasi_ctrl, val1;
9469 
9470 	/* If PHY is not initialized, do not check link status */
9471 	bnx2x_cl45_read(bp, phy,
9472 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
9473 			&lasi_ctrl);
9474 	if (!lasi_ctrl)
9475 		return 0;
9476 
9477 	/* Check the LASI on Rx */
9478 	bnx2x_cl45_read(bp, phy,
9479 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT,
9480 			&rx_alarm_status);
9481 	vars->line_speed = 0;
9482 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS  0x%x\n", rx_alarm_status);
9483 
9484 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
9485 			     MDIO_PMA_LASI_TXCTRL);
9486 
9487 	bnx2x_cl45_read(bp, phy,
9488 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
9489 
9490 	DP(NETIF_MSG_LINK, "8727 LASI status 0x%x\n", val1);
9491 
9492 	/* Clear MSG-OUT */
9493 	bnx2x_cl45_read(bp, phy,
9494 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
9495 
9496 	/* If a module is present and there is need to check
9497 	 * for over current
9498 	 */
9499 	if (!(phy->flags & FLAGS_NOC) && !(rx_alarm_status & (1<<5))) {
9500 		/* Check over-current using 8727 GPIO0 input*/
9501 		bnx2x_cl45_read(bp, phy,
9502 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_GPIO_CTRL,
9503 				&val1);
9504 
9505 		if ((val1 & (1<<8)) == 0) {
9506 			if (!CHIP_IS_E1x(bp))
9507 				oc_port = BP_PATH(bp) + (params->port << 1);
9508 			DP(NETIF_MSG_LINK,
9509 			   "8727 Power fault has been detected on port %d\n",
9510 			   oc_port);
9511 			netdev_err(bp->dev, "Error: Power fault on Port %d has "
9512 					    "been detected and the power to "
9513 					    "that SFP+ module has been removed "
9514 					    "to prevent failure of the card. "
9515 					    "Please remove the SFP+ module and "
9516 					    "restart the system to clear this "
9517 					    "error.\n",
9518 			 oc_port);
9519 			/* Disable all RX_ALARMs except for mod_abs */
9520 			bnx2x_cl45_write(bp, phy,
9521 					 MDIO_PMA_DEVAD,
9522 					 MDIO_PMA_LASI_RXCTRL, (1<<5));
9523 
9524 			bnx2x_cl45_read(bp, phy,
9525 					MDIO_PMA_DEVAD,
9526 					MDIO_PMA_REG_PHY_IDENTIFIER, &val1);
9527 			/* Wait for module_absent_event */
9528 			val1 |= (1<<8);
9529 			bnx2x_cl45_write(bp, phy,
9530 					 MDIO_PMA_DEVAD,
9531 					 MDIO_PMA_REG_PHY_IDENTIFIER, val1);
9532 			/* Clear RX alarm */
9533 			bnx2x_cl45_read(bp, phy,
9534 				MDIO_PMA_DEVAD,
9535 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9536 			bnx2x_8727_power_module(params->bp, phy, 0);
9537 			return 0;
9538 		}
9539 	} /* Over current check */
9540 
9541 	/* When module absent bit is set, check module */
9542 	if (rx_alarm_status & (1<<5)) {
9543 		bnx2x_8727_handle_mod_abs(phy, params);
9544 		/* Enable all mod_abs and link detection bits */
9545 		bnx2x_cl45_write(bp, phy,
9546 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9547 				 ((1<<5) | (1<<2)));
9548 	}
9549 
9550 	if (!(phy->flags & FLAGS_SFP_NOT_APPROVED)) {
9551 		DP(NETIF_MSG_LINK, "Enabling 8727 TX laser\n");
9552 		bnx2x_sfp_set_transmitter(params, phy, 1);
9553 	} else {
9554 		DP(NETIF_MSG_LINK, "Tx is disabled\n");
9555 		return 0;
9556 	}
9557 
9558 	bnx2x_cl45_read(bp, phy,
9559 			MDIO_PMA_DEVAD,
9560 			MDIO_PMA_REG_8073_SPEED_LINK_STATUS, &link_status);
9561 
9562 	/* Bits 0..2 --> speed detected,
9563 	 * Bits 13..15--> link is down
9564 	 */
9565 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
9566 		link_up = 1;
9567 		vars->line_speed = SPEED_10000;
9568 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
9569 			   params->port);
9570 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
9571 		link_up = 1;
9572 		vars->line_speed = SPEED_1000;
9573 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
9574 			   params->port);
9575 	} else {
9576 		link_up = 0;
9577 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
9578 			   params->port);
9579 	}
9580 
9581 	/* Capture 10G link fault. */
9582 	if (vars->line_speed == SPEED_10000) {
9583 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9584 			    MDIO_PMA_LASI_TXSTAT, &val1);
9585 
9586 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9587 			    MDIO_PMA_LASI_TXSTAT, &val1);
9588 
9589 		if (val1 & (1<<0)) {
9590 			vars->fault_detected = 1;
9591 		}
9592 	}
9593 
9594 	if (link_up) {
9595 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
9596 		vars->duplex = DUPLEX_FULL;
9597 		DP(NETIF_MSG_LINK, "duplex = 0x%x\n", vars->duplex);
9598 	}
9599 
9600 	if ((DUAL_MEDIA(params)) &&
9601 	    (phy->req_line_speed == SPEED_1000)) {
9602 		bnx2x_cl45_read(bp, phy,
9603 				MDIO_PMA_DEVAD,
9604 				MDIO_PMA_REG_8727_PCS_GP, &val1);
9605 		/* In case of dual-media board and 1G, power up the XAUI side,
9606 		 * otherwise power it down. For 10G it is done automatically
9607 		 */
9608 		if (link_up)
9609 			val1 &= ~(3<<10);
9610 		else
9611 			val1 |= (3<<10);
9612 		bnx2x_cl45_write(bp, phy,
9613 				 MDIO_PMA_DEVAD,
9614 				 MDIO_PMA_REG_8727_PCS_GP, val1);
9615 	}
9616 	return link_up;
9617 }
9618 
bnx2x_8727_link_reset(struct bnx2x_phy * phy,struct link_params * params)9619 static void bnx2x_8727_link_reset(struct bnx2x_phy *phy,
9620 				  struct link_params *params)
9621 {
9622 	struct bnx2x *bp = params->bp;
9623 
9624 	/* Enable/Disable PHY transmitter output */
9625 	bnx2x_set_disable_pmd_transmit(params, phy, 1);
9626 
9627 	/* Disable Transmitter */
9628 	bnx2x_sfp_set_transmitter(params, phy, 0);
9629 	/* Clear LASI */
9630 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0);
9631 
9632 }
9633 
9634 /******************************************************************/
9635 /*		BCM8481/BCM84823/BCM84833 PHY SECTION	          */
9636 /******************************************************************/
bnx2x_is_8483x_8485x(struct bnx2x_phy * phy)9637 static int bnx2x_is_8483x_8485x(struct bnx2x_phy *phy)
9638 {
9639 	return ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
9640 		(phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) ||
9641 		(phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858));
9642 }
9643 
bnx2x_save_848xx_spirom_version(struct bnx2x_phy * phy,struct bnx2x * bp,u8 port)9644 static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy,
9645 					    struct bnx2x *bp,
9646 					    u8 port)
9647 {
9648 	u16 val, fw_ver2, cnt, i;
9649 	static struct bnx2x_reg_set reg_set[] = {
9650 		{MDIO_PMA_DEVAD, 0xA819, 0x0014},
9651 		{MDIO_PMA_DEVAD, 0xA81A, 0xc200},
9652 		{MDIO_PMA_DEVAD, 0xA81B, 0x0000},
9653 		{MDIO_PMA_DEVAD, 0xA81C, 0x0300},
9654 		{MDIO_PMA_DEVAD, 0xA817, 0x0009}
9655 	};
9656 	u16 fw_ver1;
9657 
9658 	if (bnx2x_is_8483x_8485x(phy)) {
9659 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1);
9660 		if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
9661 			fw_ver1 &= 0xfff;
9662 		bnx2x_save_spirom_version(bp, port, fw_ver1, phy->ver_addr);
9663 	} else {
9664 		/* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */
9665 		/* (1) set reg 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
9666 		for (i = 0; i < ARRAY_SIZE(reg_set); i++)
9667 			bnx2x_cl45_write(bp, phy, reg_set[i].devad,
9668 					 reg_set[i].reg, reg_set[i].val);
9669 
9670 		for (cnt = 0; cnt < 100; cnt++) {
9671 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9672 			if (val & 1)
9673 				break;
9674 			udelay(5);
9675 		}
9676 		if (cnt == 100) {
9677 			DP(NETIF_MSG_LINK, "Unable to read 848xx "
9678 					"phy fw version(1)\n");
9679 			bnx2x_save_spirom_version(bp, port, 0,
9680 						  phy->ver_addr);
9681 			return;
9682 		}
9683 
9684 
9685 		/* 2) read register 0xc200_0000 (SPI_FW_STATUS) */
9686 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA819, 0x0000);
9687 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81A, 0xc200);
9688 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA817, 0x000A);
9689 		for (cnt = 0; cnt < 100; cnt++) {
9690 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9691 			if (val & 1)
9692 				break;
9693 			udelay(5);
9694 		}
9695 		if (cnt == 100) {
9696 			DP(NETIF_MSG_LINK, "Unable to read 848xx phy fw "
9697 					"version(2)\n");
9698 			bnx2x_save_spirom_version(bp, port, 0,
9699 						  phy->ver_addr);
9700 			return;
9701 		}
9702 
9703 		/* lower 16 bits of the register SPI_FW_STATUS */
9704 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81B, &fw_ver1);
9705 		/* upper 16 bits of register SPI_FW_STATUS */
9706 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81C, &fw_ver2);
9707 
9708 		bnx2x_save_spirom_version(bp, port, (fw_ver2<<16) | fw_ver1,
9709 					  phy->ver_addr);
9710 	}
9711 
9712 }
bnx2x_848xx_set_led(struct bnx2x * bp,struct bnx2x_phy * phy)9713 static void bnx2x_848xx_set_led(struct bnx2x *bp,
9714 				struct bnx2x_phy *phy)
9715 {
9716 	u16 val, led3_blink_rate, offset, i;
9717 	static struct bnx2x_reg_set reg_set[] = {
9718 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED1_MASK, 0x0080},
9719 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED2_MASK, 0x0018},
9720 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_MASK, 0x0006},
9721 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_84823_CTL_SLOW_CLK_CNT_HIGH,
9722 			MDIO_PMA_REG_84823_BLINK_RATE_VAL_15P9HZ},
9723 		{MDIO_AN_DEVAD, 0xFFFB, 0xFFFD}
9724 	};
9725 
9726 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
9727 		/* Set LED5 source */
9728 		bnx2x_cl45_write(bp, phy,
9729 				 MDIO_PMA_DEVAD,
9730 				 MDIO_PMA_REG_8481_LED5_MASK,
9731 				 0x90);
9732 		led3_blink_rate = 0x000f;
9733 	} else {
9734 		led3_blink_rate = 0x0000;
9735 	}
9736 	/* Set LED3 BLINK */
9737 	bnx2x_cl45_write(bp, phy,
9738 			 MDIO_PMA_DEVAD,
9739 			 MDIO_PMA_REG_8481_LED3_BLINK,
9740 			 led3_blink_rate);
9741 
9742 	/* PHYC_CTL_LED_CTL */
9743 	bnx2x_cl45_read(bp, phy,
9744 			MDIO_PMA_DEVAD,
9745 			MDIO_PMA_REG_8481_LINK_SIGNAL, &val);
9746 	val &= 0xFE00;
9747 	val |= 0x0092;
9748 
9749 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
9750 		val |= 2 << 12; /* LED5 ON based on source */
9751 
9752 	bnx2x_cl45_write(bp, phy,
9753 			 MDIO_PMA_DEVAD,
9754 			 MDIO_PMA_REG_8481_LINK_SIGNAL, val);
9755 
9756 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
9757 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
9758 				 reg_set[i].val);
9759 
9760 	if (bnx2x_is_8483x_8485x(phy))
9761 		offset = MDIO_PMA_REG_84833_CTL_LED_CTL_1;
9762 	else
9763 		offset = MDIO_PMA_REG_84823_CTL_LED_CTL_1;
9764 
9765 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858)
9766 		val = MDIO_PMA_REG_84858_ALLOW_GPHY_ACT |
9767 		      MDIO_PMA_REG_84823_LED3_STRETCH_EN;
9768 	else
9769 		val = MDIO_PMA_REG_84823_LED3_STRETCH_EN;
9770 
9771 	/* stretch_en for LEDs */
9772 	bnx2x_cl45_read_or_write(bp, phy,
9773 				 MDIO_PMA_DEVAD,
9774 				 offset,
9775 				 val);
9776 }
9777 
bnx2x_848xx_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)9778 static void bnx2x_848xx_specific_func(struct bnx2x_phy *phy,
9779 				      struct link_params *params,
9780 				      u32 action)
9781 {
9782 	struct bnx2x *bp = params->bp;
9783 	switch (action) {
9784 	case PHY_INIT:
9785 		if (bnx2x_is_8483x_8485x(phy)) {
9786 			/* Save spirom version */
9787 			bnx2x_save_848xx_spirom_version(phy, bp, params->port);
9788 		}
9789 		/* This phy uses the NIG latch mechanism since link indication
9790 		 * arrives through its LED4 and not via its LASI signal, so we
9791 		 * get steady signal instead of clear on read
9792 		 */
9793 		bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4,
9794 			      1 << NIG_LATCH_BC_ENABLE_MI_INT);
9795 
9796 		bnx2x_848xx_set_led(bp, phy);
9797 		break;
9798 	}
9799 }
9800 
bnx2x_848xx_cmn_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9801 static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
9802 				       struct link_params *params,
9803 				       struct link_vars *vars)
9804 {
9805 	struct bnx2x *bp = params->bp;
9806 	u16 autoneg_val, an_1000_val, an_10_100_val;
9807 
9808 	bnx2x_848xx_specific_func(phy, params, PHY_INIT);
9809 	bnx2x_cl45_write(bp, phy,
9810 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0000);
9811 
9812 	/* set 1000 speed advertisement */
9813 	bnx2x_cl45_read(bp, phy,
9814 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9815 			&an_1000_val);
9816 
9817 	bnx2x_ext_phy_set_pause(params, phy, vars);
9818 	bnx2x_cl45_read(bp, phy,
9819 			MDIO_AN_DEVAD,
9820 			MDIO_AN_REG_8481_LEGACY_AN_ADV,
9821 			&an_10_100_val);
9822 	bnx2x_cl45_read(bp, phy,
9823 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_MII_CTRL,
9824 			&autoneg_val);
9825 	/* Disable forced speed */
9826 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
9827 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8));
9828 
9829 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9830 	     (phy->speed_cap_mask &
9831 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
9832 	    (phy->req_line_speed == SPEED_1000)) {
9833 		an_1000_val |= (1<<8);
9834 		autoneg_val |= (1<<9 | 1<<12);
9835 		if (phy->req_duplex == DUPLEX_FULL)
9836 			an_1000_val |= (1<<9);
9837 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
9838 	} else
9839 		an_1000_val &= ~((1<<8) | (1<<9));
9840 
9841 	bnx2x_cl45_write(bp, phy,
9842 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9843 			 an_1000_val);
9844 
9845 	/* Set 10/100 speed advertisement */
9846 	if (phy->req_line_speed == SPEED_AUTO_NEG) {
9847 		if (phy->speed_cap_mask &
9848 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
9849 			/* Enable autoneg and restart autoneg for legacy speeds
9850 			 */
9851 			autoneg_val |= (1<<9 | 1<<12);
9852 			an_10_100_val |= (1<<8);
9853 			DP(NETIF_MSG_LINK, "Advertising 100M-FD\n");
9854 		}
9855 
9856 		if (phy->speed_cap_mask &
9857 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
9858 			/* Enable autoneg and restart autoneg for legacy speeds
9859 			 */
9860 			autoneg_val |= (1<<9 | 1<<12);
9861 			an_10_100_val |= (1<<7);
9862 			DP(NETIF_MSG_LINK, "Advertising 100M-HD\n");
9863 		}
9864 
9865 		if ((phy->speed_cap_mask &
9866 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
9867 		    (phy->supported & SUPPORTED_10baseT_Full)) {
9868 			an_10_100_val |= (1<<6);
9869 			autoneg_val |= (1<<9 | 1<<12);
9870 			DP(NETIF_MSG_LINK, "Advertising 10M-FD\n");
9871 		}
9872 
9873 		if ((phy->speed_cap_mask &
9874 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) &&
9875 		    (phy->supported & SUPPORTED_10baseT_Half)) {
9876 			an_10_100_val |= (1<<5);
9877 			autoneg_val |= (1<<9 | 1<<12);
9878 			DP(NETIF_MSG_LINK, "Advertising 10M-HD\n");
9879 		}
9880 	}
9881 
9882 	/* Only 10/100 are allowed to work in FORCE mode */
9883 	if ((phy->req_line_speed == SPEED_100) &&
9884 	    (phy->supported &
9885 	     (SUPPORTED_100baseT_Half |
9886 	      SUPPORTED_100baseT_Full))) {
9887 		autoneg_val |= (1<<13);
9888 		/* Enabled AUTO-MDIX when autoneg is disabled */
9889 		bnx2x_cl45_write(bp, phy,
9890 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9891 				 (1<<15 | 1<<9 | 7<<0));
9892 		/* The PHY needs this set even for forced link. */
9893 		an_10_100_val |= (1<<8) | (1<<7);
9894 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
9895 	}
9896 	if ((phy->req_line_speed == SPEED_10) &&
9897 	    (phy->supported &
9898 	     (SUPPORTED_10baseT_Half |
9899 	      SUPPORTED_10baseT_Full))) {
9900 		/* Enabled AUTO-MDIX when autoneg is disabled */
9901 		bnx2x_cl45_write(bp, phy,
9902 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9903 				 (1<<15 | 1<<9 | 7<<0));
9904 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
9905 	}
9906 
9907 	bnx2x_cl45_write(bp, phy,
9908 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_AN_ADV,
9909 			 an_10_100_val);
9910 
9911 	if (phy->req_duplex == DUPLEX_FULL)
9912 		autoneg_val |= (1<<8);
9913 
9914 	/* Always write this if this is not 84833/4.
9915 	 * For 84833/4, write it only when it's a forced speed.
9916 	 */
9917 	if (!bnx2x_is_8483x_8485x(phy) ||
9918 	    ((autoneg_val & (1<<12)) == 0))
9919 		bnx2x_cl45_write(bp, phy,
9920 			 MDIO_AN_DEVAD,
9921 			 MDIO_AN_REG_8481_LEGACY_MII_CTRL, autoneg_val);
9922 
9923 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9924 	    (phy->speed_cap_mask &
9925 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
9926 		(phy->req_line_speed == SPEED_10000)) {
9927 			DP(NETIF_MSG_LINK, "Advertising 10G\n");
9928 			/* Restart autoneg for 10G*/
9929 
9930 			bnx2x_cl45_read_or_write(
9931 				bp, phy,
9932 				MDIO_AN_DEVAD,
9933 				MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9934 				0x1000);
9935 			bnx2x_cl45_write(bp, phy,
9936 					 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL,
9937 					 0x3200);
9938 	} else
9939 		bnx2x_cl45_write(bp, phy,
9940 				 MDIO_AN_DEVAD,
9941 				 MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9942 				 1);
9943 
9944 	return 0;
9945 }
9946 
bnx2x_8481_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9947 static void bnx2x_8481_config_init(struct bnx2x_phy *phy,
9948 				   struct link_params *params,
9949 				   struct link_vars *vars)
9950 {
9951 	struct bnx2x *bp = params->bp;
9952 	/* Restore normal power mode*/
9953 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
9954 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
9955 
9956 	/* HW reset */
9957 	bnx2x_ext_phy_hw_reset(bp, params->port);
9958 	bnx2x_wait_reset_complete(bp, phy, params);
9959 
9960 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
9961 	bnx2x_848xx_cmn_config_init(phy, params, vars);
9962 }
9963 
9964 #define PHY848xx_CMDHDLR_WAIT 300
9965 #define PHY848xx_CMDHDLR_MAX_ARGS 5
9966 
bnx2x_84858_cmd_hdlr(struct bnx2x_phy * phy,struct link_params * params,u16 fw_cmd,u16 cmd_args[],int argc)9967 static int bnx2x_84858_cmd_hdlr(struct bnx2x_phy *phy,
9968 				struct link_params *params,
9969 				u16 fw_cmd,
9970 				u16 cmd_args[], int argc)
9971 {
9972 	int idx;
9973 	u16 val;
9974 	struct bnx2x *bp = params->bp;
9975 
9976 	/* Step 1: Poll the STATUS register to see whether the previous command
9977 	 * is in progress or the system is busy (CMD_IN_PROGRESS or
9978 	 * SYSTEM_BUSY). If previous command is in progress or system is busy,
9979 	 * check again until the previous command finishes execution and the
9980 	 * system is available for taking command
9981 	 */
9982 
9983 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
9984 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9985 				MDIO_848xx_CMD_HDLR_STATUS, &val);
9986 		if ((val != PHY84858_STATUS_CMD_IN_PROGRESS) &&
9987 		    (val != PHY84858_STATUS_CMD_SYSTEM_BUSY))
9988 			break;
9989 		usleep_range(1000, 2000);
9990 	}
9991 	if (idx >= PHY848xx_CMDHDLR_WAIT) {
9992 		DP(NETIF_MSG_LINK, "FW cmd: FW not ready.\n");
9993 		return -EINVAL;
9994 	}
9995 
9996 	/* Step2: If any parameters are required for the function, write them
9997 	 * to the required DATA registers
9998 	 */
9999 
10000 	for (idx = 0; idx < argc; idx++) {
10001 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10002 				 MDIO_848xx_CMD_HDLR_DATA1 + idx,
10003 				 cmd_args[idx]);
10004 	}
10005 
10006 	/* Step3: When the firmware is ready for commands, write the 'Command
10007 	 * code' to the CMD register
10008 	 */
10009 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10010 			 MDIO_848xx_CMD_HDLR_COMMAND, fw_cmd);
10011 
10012 	/* Step4: Once the command has been written, poll the STATUS register
10013 	 * to check whether the command has completed (CMD_COMPLETED_PASS/
10014 	 * CMD_FOR_CMDS or CMD_COMPLETED_ERROR).
10015 	 */
10016 
10017 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
10018 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10019 				MDIO_848xx_CMD_HDLR_STATUS, &val);
10020 		if ((val == PHY84858_STATUS_CMD_COMPLETE_PASS) ||
10021 		    (val == PHY84858_STATUS_CMD_COMPLETE_ERROR))
10022 			break;
10023 		usleep_range(1000, 2000);
10024 	}
10025 	if ((idx >= PHY848xx_CMDHDLR_WAIT) ||
10026 	    (val == PHY84858_STATUS_CMD_COMPLETE_ERROR)) {
10027 		DP(NETIF_MSG_LINK, "FW cmd failed.\n");
10028 		return -EINVAL;
10029 	}
10030 	/* Step5: Once the command has completed, read the specficied DATA
10031 	 * registers for any saved results for the command, if applicable
10032 	 */
10033 
10034 	/* Gather returning data */
10035 	for (idx = 0; idx < argc; idx++) {
10036 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10037 				MDIO_848xx_CMD_HDLR_DATA1 + idx,
10038 				&cmd_args[idx]);
10039 	}
10040 
10041 	return 0;
10042 }
10043 
bnx2x_84833_cmd_hdlr(struct bnx2x_phy * phy,struct link_params * params,u16 fw_cmd,u16 cmd_args[],int argc,int process)10044 static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
10045 				struct link_params *params, u16 fw_cmd,
10046 				u16 cmd_args[], int argc, int process)
10047 {
10048 	int idx;
10049 	u16 val;
10050 	struct bnx2x *bp = params->bp;
10051 	int rc = 0;
10052 
10053 	if (process == PHY84833_MB_PROCESS2) {
10054 		/* Write CMD_OPEN_OVERRIDE to STATUS reg */
10055 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10056 				 MDIO_848xx_CMD_HDLR_STATUS,
10057 				 PHY84833_STATUS_CMD_OPEN_OVERRIDE);
10058 	}
10059 
10060 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
10061 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10062 				MDIO_848xx_CMD_HDLR_STATUS, &val);
10063 		if (val == PHY84833_STATUS_CMD_OPEN_FOR_CMDS)
10064 			break;
10065 		usleep_range(1000, 2000);
10066 	}
10067 	if (idx >= PHY848xx_CMDHDLR_WAIT) {
10068 		DP(NETIF_MSG_LINK, "FW cmd: FW not ready.\n");
10069 		/* if the status is CMD_COMPLETE_PASS or CMD_COMPLETE_ERROR
10070 		 * clear the status to CMD_CLEAR_COMPLETE
10071 		 */
10072 		if (val == PHY84833_STATUS_CMD_COMPLETE_PASS ||
10073 		    val == PHY84833_STATUS_CMD_COMPLETE_ERROR) {
10074 			bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10075 					 MDIO_848xx_CMD_HDLR_STATUS,
10076 					 PHY84833_STATUS_CMD_CLEAR_COMPLETE);
10077 		}
10078 		return -EINVAL;
10079 	}
10080 	if (process == PHY84833_MB_PROCESS1 ||
10081 	    process == PHY84833_MB_PROCESS2) {
10082 		/* Prepare argument(s) */
10083 		for (idx = 0; idx < argc; idx++) {
10084 			bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10085 					 MDIO_848xx_CMD_HDLR_DATA1 + idx,
10086 					 cmd_args[idx]);
10087 		}
10088 	}
10089 
10090 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10091 			MDIO_848xx_CMD_HDLR_COMMAND, fw_cmd);
10092 	for (idx = 0; idx < PHY848xx_CMDHDLR_WAIT; idx++) {
10093 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10094 				MDIO_848xx_CMD_HDLR_STATUS, &val);
10095 		if ((val == PHY84833_STATUS_CMD_COMPLETE_PASS) ||
10096 		    (val == PHY84833_STATUS_CMD_COMPLETE_ERROR))
10097 			break;
10098 		usleep_range(1000, 2000);
10099 	}
10100 	if ((idx >= PHY848xx_CMDHDLR_WAIT) ||
10101 	    (val == PHY84833_STATUS_CMD_COMPLETE_ERROR)) {
10102 		DP(NETIF_MSG_LINK, "FW cmd failed.\n");
10103 		rc = -EINVAL;
10104 	}
10105 	if (process == PHY84833_MB_PROCESS3 && rc == 0) {
10106 		/* Gather returning data */
10107 		for (idx = 0; idx < argc; idx++) {
10108 			bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10109 					MDIO_848xx_CMD_HDLR_DATA1 + idx,
10110 					&cmd_args[idx]);
10111 		}
10112 	}
10113 	if (val == PHY84833_STATUS_CMD_COMPLETE_ERROR ||
10114 	    val == PHY84833_STATUS_CMD_COMPLETE_PASS) {
10115 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10116 				 MDIO_848xx_CMD_HDLR_STATUS,
10117 				 PHY84833_STATUS_CMD_CLEAR_COMPLETE);
10118 	}
10119 	return rc;
10120 }
10121 
bnx2x_848xx_cmd_hdlr(struct bnx2x_phy * phy,struct link_params * params,u16 fw_cmd,u16 cmd_args[],int argc,int process)10122 static int bnx2x_848xx_cmd_hdlr(struct bnx2x_phy *phy,
10123 				struct link_params *params,
10124 				u16 fw_cmd,
10125 					   u16 cmd_args[], int argc,
10126 					   int process)
10127 {
10128 	struct bnx2x *bp = params->bp;
10129 
10130 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) ||
10131 	    (REG_RD(bp, params->shmem2_base +
10132 		    offsetof(struct shmem2_region,
10133 			     link_attr_sync[params->port])) &
10134 	     LINK_ATTR_84858)) {
10135 		return bnx2x_84858_cmd_hdlr(phy, params, fw_cmd, cmd_args,
10136 					    argc);
10137 	} else {
10138 		return bnx2x_84833_cmd_hdlr(phy, params, fw_cmd, cmd_args,
10139 					    argc, process);
10140 	}
10141 }
10142 
bnx2x_848xx_pair_swap_cfg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10143 static int bnx2x_848xx_pair_swap_cfg(struct bnx2x_phy *phy,
10144 				     struct link_params *params,
10145 				     struct link_vars *vars)
10146 {
10147 	u32 pair_swap;
10148 	u16 data[PHY848xx_CMDHDLR_MAX_ARGS];
10149 	int status;
10150 	struct bnx2x *bp = params->bp;
10151 
10152 	/* Check for configuration. */
10153 	pair_swap = REG_RD(bp, params->shmem_base +
10154 			   offsetof(struct shmem_region,
10155 			dev_info.port_hw_config[params->port].xgbt_phy_cfg)) &
10156 		PORT_HW_CFG_RJ45_PAIR_SWAP_MASK;
10157 
10158 	if (pair_swap == 0)
10159 		return 0;
10160 
10161 	/* Only the second argument is used for this command */
10162 	data[1] = (u16)pair_swap;
10163 
10164 	status = bnx2x_848xx_cmd_hdlr(phy, params,
10165 				      PHY848xx_CMD_SET_PAIR_SWAP, data,
10166 				      2, PHY84833_MB_PROCESS2);
10167 	if (status == 0)
10168 		DP(NETIF_MSG_LINK, "Pairswap OK, val=0x%x\n", data[1]);
10169 
10170 	return status;
10171 }
10172 
bnx2x_84833_get_reset_gpios(struct bnx2x * bp,u32 shmem_base_path[],u32 chip_id)10173 static u8 bnx2x_84833_get_reset_gpios(struct bnx2x *bp,
10174 				      u32 shmem_base_path[],
10175 				      u32 chip_id)
10176 {
10177 	u32 reset_pin[2];
10178 	u32 idx;
10179 	u8 reset_gpios;
10180 	if (CHIP_IS_E3(bp)) {
10181 		/* Assume that these will be GPIOs, not EPIOs. */
10182 		for (idx = 0; idx < 2; idx++) {
10183 			/* Map config param to register bit. */
10184 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
10185 				offsetof(struct shmem_region,
10186 				dev_info.port_hw_config[0].e3_cmn_pin_cfg));
10187 			reset_pin[idx] = (reset_pin[idx] &
10188 				PORT_HW_CFG_E3_PHY_RESET_MASK) >>
10189 				PORT_HW_CFG_E3_PHY_RESET_SHIFT;
10190 			reset_pin[idx] -= PIN_CFG_GPIO0_P0;
10191 			reset_pin[idx] = (1 << reset_pin[idx]);
10192 		}
10193 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
10194 	} else {
10195 		/* E2, look from diff place of shmem. */
10196 		for (idx = 0; idx < 2; idx++) {
10197 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
10198 				offsetof(struct shmem_region,
10199 				dev_info.port_hw_config[0].default_cfg));
10200 			reset_pin[idx] &= PORT_HW_CFG_EXT_PHY_GPIO_RST_MASK;
10201 			reset_pin[idx] -= PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0;
10202 			reset_pin[idx] >>= PORT_HW_CFG_EXT_PHY_GPIO_RST_SHIFT;
10203 			reset_pin[idx] = (1 << reset_pin[idx]);
10204 		}
10205 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
10206 	}
10207 
10208 	return reset_gpios;
10209 }
10210 
bnx2x_84833_hw_reset_phy(struct bnx2x_phy * phy,struct link_params * params)10211 static void bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
10212 				     struct link_params *params)
10213 {
10214 	struct bnx2x *bp = params->bp;
10215 	u8 reset_gpios;
10216 	u32 other_shmem_base_addr = REG_RD(bp, params->shmem2_base +
10217 				offsetof(struct shmem2_region,
10218 				other_shmem_base_addr));
10219 
10220 	u32 shmem_base_path[2];
10221 
10222 	/* Work around for 84833 LED failure inside RESET status */
10223 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10224 		MDIO_AN_REG_8481_LEGACY_MII_CTRL,
10225 		MDIO_AN_REG_8481_MII_CTRL_FORCE_1G);
10226 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10227 		MDIO_AN_REG_8481_1G_100T_EXT_CTRL,
10228 		MIDO_AN_REG_8481_EXT_CTRL_FORCE_LEDS_OFF);
10229 
10230 	shmem_base_path[0] = params->shmem_base;
10231 	shmem_base_path[1] = other_shmem_base_addr;
10232 
10233 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path,
10234 						  params->chip_id);
10235 
10236 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
10237 	udelay(10);
10238 	DP(NETIF_MSG_LINK, "84833 hw reset on pin values 0x%x\n",
10239 		reset_gpios);
10240 }
10241 
bnx2x_8483x_disable_eee(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10242 static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
10243 				   struct link_params *params,
10244 				   struct link_vars *vars)
10245 {
10246 	int rc;
10247 	struct bnx2x *bp = params->bp;
10248 	u16 cmd_args = 0;
10249 
10250 	DP(NETIF_MSG_LINK, "Don't Advertise 10GBase-T EEE\n");
10251 
10252 	/* Prevent Phy from working in EEE and advertising it */
10253 	rc = bnx2x_848xx_cmd_hdlr(phy, params, PHY848xx_CMD_SET_EEE_MODE,
10254 				  &cmd_args, 1, PHY84833_MB_PROCESS1);
10255 	if (rc) {
10256 		DP(NETIF_MSG_LINK, "EEE disable failed.\n");
10257 		return rc;
10258 	}
10259 
10260 	return bnx2x_eee_disable(phy, params, vars);
10261 }
10262 
bnx2x_8483x_enable_eee(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10263 static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
10264 				   struct link_params *params,
10265 				   struct link_vars *vars)
10266 {
10267 	int rc;
10268 	struct bnx2x *bp = params->bp;
10269 	u16 cmd_args = 1;
10270 
10271 	rc = bnx2x_848xx_cmd_hdlr(phy, params, PHY848xx_CMD_SET_EEE_MODE,
10272 				  &cmd_args, 1, PHY84833_MB_PROCESS1);
10273 	if (rc) {
10274 		DP(NETIF_MSG_LINK, "EEE enable failed.\n");
10275 		return rc;
10276 	}
10277 
10278 	return bnx2x_eee_advertise(phy, params, vars, SHMEM_EEE_10G_ADV);
10279 }
10280 
10281 #define PHY84833_CONSTANT_LATENCY 1193
bnx2x_848x3_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10282 static void bnx2x_848x3_config_init(struct bnx2x_phy *phy,
10283 				    struct link_params *params,
10284 				    struct link_vars *vars)
10285 {
10286 	struct bnx2x *bp = params->bp;
10287 	u8 port, initialize = 1;
10288 	u16 val;
10289 	u32 actual_phy_selection;
10290 	u16 cmd_args[PHY848xx_CMDHDLR_MAX_ARGS];
10291 	int rc = 0;
10292 
10293 	usleep_range(1000, 2000);
10294 
10295 	if (!(CHIP_IS_E1x(bp)))
10296 		port = BP_PATH(bp);
10297 	else
10298 		port = params->port;
10299 
10300 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10301 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
10302 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
10303 			       port);
10304 	} else {
10305 		/* MDIO reset */
10306 		bnx2x_cl45_write(bp, phy,
10307 				MDIO_PMA_DEVAD,
10308 				MDIO_PMA_REG_CTRL, 0x8000);
10309 	}
10310 
10311 	bnx2x_wait_reset_complete(bp, phy, params);
10312 
10313 	/* Wait for GPHY to come out of reset */
10314 	msleep(50);
10315 	if (!bnx2x_is_8483x_8485x(phy)) {
10316 		/* BCM84823 requires that XGXS links up first @ 10G for normal
10317 		 * behavior.
10318 		 */
10319 		u16 temp;
10320 		temp = vars->line_speed;
10321 		vars->line_speed = SPEED_10000;
10322 		bnx2x_set_autoneg(&params->phy[INT_PHY], params, vars, 0);
10323 		bnx2x_program_serdes(&params->phy[INT_PHY], params, vars);
10324 		vars->line_speed = temp;
10325 	}
10326 	/* Check if this is actually BCM84858 */
10327 	if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
10328 		u16 hw_rev;
10329 
10330 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10331 				MDIO_AN_REG_848xx_ID_MSB, &hw_rev);
10332 		if (hw_rev == BCM84858_PHY_ID) {
10333 			params->link_attr_sync |= LINK_ATTR_84858;
10334 			bnx2x_update_link_attr(params, params->link_attr_sync);
10335 		}
10336 	}
10337 
10338 	/* Set dual-media configuration according to configuration */
10339 	bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10340 			MDIO_CTL_REG_84823_MEDIA, &val);
10341 	val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
10342 		 MDIO_CTL_REG_84823_MEDIA_LINE_MASK |
10343 		 MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN |
10344 		 MDIO_CTL_REG_84823_MEDIA_PRIORITY_MASK |
10345 		 MDIO_CTL_REG_84823_MEDIA_FIBER_1G);
10346 
10347 	if (CHIP_IS_E3(bp)) {
10348 		val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
10349 			 MDIO_CTL_REG_84823_MEDIA_LINE_MASK);
10350 	} else {
10351 		val |= (MDIO_CTL_REG_84823_CTRL_MAC_XFI |
10352 			MDIO_CTL_REG_84823_MEDIA_LINE_XAUI_L);
10353 	}
10354 
10355 	actual_phy_selection = bnx2x_phy_selection(params);
10356 
10357 	switch (actual_phy_selection) {
10358 	case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
10359 		/* Do nothing. Essentially this is like the priority copper */
10360 		break;
10361 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
10362 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_COPPER;
10363 		break;
10364 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
10365 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_FIBER;
10366 		break;
10367 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
10368 		/* Do nothing here. The first PHY won't be initialized at all */
10369 		break;
10370 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
10371 		val |= MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN;
10372 		initialize = 0;
10373 		break;
10374 	}
10375 	if (params->phy[EXT_PHY2].req_line_speed == SPEED_1000)
10376 		val |= MDIO_CTL_REG_84823_MEDIA_FIBER_1G;
10377 
10378 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10379 			 MDIO_CTL_REG_84823_MEDIA, val);
10380 	DP(NETIF_MSG_LINK, "Multi_phy config = 0x%x, Media control = 0x%x\n",
10381 		   params->multi_phy_config, val);
10382 
10383 	if (bnx2x_is_8483x_8485x(phy)) {
10384 		bnx2x_848xx_pair_swap_cfg(phy, params, vars);
10385 
10386 		/* Keep AutogrEEEn disabled. */
10387 		cmd_args[0] = 0x0;
10388 		cmd_args[1] = 0x0;
10389 		cmd_args[2] = PHY84833_CONSTANT_LATENCY + 1;
10390 		cmd_args[3] = PHY84833_CONSTANT_LATENCY;
10391 		rc = bnx2x_848xx_cmd_hdlr(phy, params,
10392 					  PHY848xx_CMD_SET_EEE_MODE, cmd_args,
10393 					  4, PHY84833_MB_PROCESS1);
10394 		if (rc)
10395 			DP(NETIF_MSG_LINK, "Cfg AutogrEEEn failed.\n");
10396 	}
10397 	if (initialize)
10398 		rc = bnx2x_848xx_cmn_config_init(phy, params, vars);
10399 	else
10400 		bnx2x_save_848xx_spirom_version(phy, bp, params->port);
10401 	/* 84833 PHY has a better feature and doesn't need to support this. */
10402 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10403 		u32 cms_enable = REG_RD(bp, params->shmem_base +
10404 			offsetof(struct shmem_region,
10405 			dev_info.port_hw_config[params->port].default_cfg)) &
10406 			PORT_HW_CFG_ENABLE_CMS_MASK;
10407 
10408 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10409 				MDIO_CTL_REG_84823_USER_CTRL_REG, &val);
10410 		if (cms_enable)
10411 			val |= MDIO_CTL_REG_84823_USER_CTRL_CMS;
10412 		else
10413 			val &= ~MDIO_CTL_REG_84823_USER_CTRL_CMS;
10414 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10415 				 MDIO_CTL_REG_84823_USER_CTRL_REG, val);
10416 	}
10417 
10418 	bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10419 			MDIO_84833_TOP_CFG_FW_REV, &val);
10420 
10421 	/* Configure EEE support */
10422 	if ((val >= MDIO_84833_TOP_CFG_FW_EEE) &&
10423 	    (val != MDIO_84833_TOP_CFG_FW_NO_EEE) &&
10424 	    bnx2x_eee_has_cap(params)) {
10425 		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_10G_ADV);
10426 		if (rc) {
10427 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
10428 			bnx2x_8483x_disable_eee(phy, params, vars);
10429 			return;
10430 		}
10431 
10432 		if ((phy->req_duplex == DUPLEX_FULL) &&
10433 		    (params->eee_mode & EEE_MODE_ADV_LPI) &&
10434 		    (bnx2x_eee_calc_timer(params) ||
10435 		     !(params->eee_mode & EEE_MODE_ENABLE_LPI)))
10436 			rc = bnx2x_8483x_enable_eee(phy, params, vars);
10437 		else
10438 			rc = bnx2x_8483x_disable_eee(phy, params, vars);
10439 		if (rc) {
10440 			DP(NETIF_MSG_LINK, "Failed to set EEE advertisement\n");
10441 			return;
10442 		}
10443 	} else {
10444 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
10445 	}
10446 
10447 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
10448 		/* Additional settings for jumbo packets in 1000BASE-T mode */
10449 		/* Allow rx extended length */
10450 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10451 				MDIO_AN_REG_8481_AUX_CTRL, &val);
10452 		val |= 0x4000;
10453 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10454 				 MDIO_AN_REG_8481_AUX_CTRL, val);
10455 		/* TX FIFO Elasticity LSB */
10456 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10457 				MDIO_AN_REG_8481_1G_100T_EXT_CTRL, &val);
10458 		val |= 0x1;
10459 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10460 				 MDIO_AN_REG_8481_1G_100T_EXT_CTRL, val);
10461 		/* TX FIFO Elasticity MSB */
10462 		/* Enable expansion register 0x46 (Pattern Generator status) */
10463 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10464 				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf46);
10465 
10466 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10467 				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW, &val);
10468 		val |= 0x4000;
10469 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10470 				 MDIO_AN_REG_8481_EXPANSION_REG_RD_RW, val);
10471 	}
10472 
10473 	if (bnx2x_is_8483x_8485x(phy)) {
10474 		/* Bring PHY out of super isolate mode as the final step. */
10475 		bnx2x_cl45_read_and_write(bp, phy,
10476 					  MDIO_CTL_DEVAD,
10477 					  MDIO_84833_TOP_CFG_XGPHY_STRAP1,
10478 					  (u16)~MDIO_84833_SUPER_ISOLATE);
10479 	}
10480 }
10481 
bnx2x_848xx_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10482 static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
10483 				  struct link_params *params,
10484 				  struct link_vars *vars)
10485 {
10486 	struct bnx2x *bp = params->bp;
10487 	u16 val, val1, val2;
10488 	u8 link_up = 0;
10489 
10490 
10491 	/* Check 10G-BaseT link status */
10492 	/* Check PMD signal ok */
10493 	bnx2x_cl45_read(bp, phy,
10494 			MDIO_AN_DEVAD, 0xFFFA, &val1);
10495 	bnx2x_cl45_read(bp, phy,
10496 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_PMD_SIGNAL,
10497 			&val2);
10498 	DP(NETIF_MSG_LINK, "BCM848xx: PMD_SIGNAL 1.a811 = 0x%x\n", val2);
10499 
10500 	/* Check link 10G */
10501 	if (val2 & (1<<11)) {
10502 		vars->line_speed = SPEED_10000;
10503 		vars->duplex = DUPLEX_FULL;
10504 		link_up = 1;
10505 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
10506 	} else { /* Check Legacy speed link */
10507 		u16 legacy_status, legacy_speed;
10508 
10509 		/* Enable expansion register 0x42 (Operation mode status) */
10510 		bnx2x_cl45_write(bp, phy,
10511 				 MDIO_AN_DEVAD,
10512 				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf42);
10513 
10514 		/* Get legacy speed operation status */
10515 		bnx2x_cl45_read(bp, phy,
10516 				MDIO_AN_DEVAD,
10517 				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW,
10518 				&legacy_status);
10519 
10520 		DP(NETIF_MSG_LINK, "Legacy speed status = 0x%x\n",
10521 		   legacy_status);
10522 		link_up = ((legacy_status & (1<<11)) == (1<<11));
10523 		legacy_speed = (legacy_status & (3<<9));
10524 		if (legacy_speed == (0<<9))
10525 			vars->line_speed = SPEED_10;
10526 		else if (legacy_speed == (1<<9))
10527 			vars->line_speed = SPEED_100;
10528 		else if (legacy_speed == (2<<9))
10529 			vars->line_speed = SPEED_1000;
10530 		else { /* Should not happen: Treat as link down */
10531 			vars->line_speed = 0;
10532 			link_up = 0;
10533 		}
10534 
10535 		if (link_up) {
10536 			if (legacy_status & (1<<8))
10537 				vars->duplex = DUPLEX_FULL;
10538 			else
10539 				vars->duplex = DUPLEX_HALF;
10540 
10541 			DP(NETIF_MSG_LINK,
10542 			   "Link is up in %dMbps, is_duplex_full= %d\n",
10543 			   vars->line_speed,
10544 			   (vars->duplex == DUPLEX_FULL));
10545 			/* Check legacy speed AN resolution */
10546 			bnx2x_cl45_read(bp, phy,
10547 					MDIO_AN_DEVAD,
10548 					MDIO_AN_REG_8481_LEGACY_MII_STATUS,
10549 					&val);
10550 			if (val & (1<<5))
10551 				vars->link_status |=
10552 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
10553 			bnx2x_cl45_read(bp, phy,
10554 					MDIO_AN_DEVAD,
10555 					MDIO_AN_REG_8481_LEGACY_AN_EXPANSION,
10556 					&val);
10557 			if ((val & (1<<0)) == 0)
10558 				vars->link_status |=
10559 					LINK_STATUS_PARALLEL_DETECTION_USED;
10560 		}
10561 	}
10562 	if (link_up) {
10563 		DP(NETIF_MSG_LINK, "BCM848x3: link speed is %d\n",
10564 			   vars->line_speed);
10565 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
10566 
10567 		/* Read LP advertised speeds */
10568 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10569 				MDIO_AN_REG_CL37_FC_LP, &val);
10570 		if (val & (1<<5))
10571 			vars->link_status |=
10572 				LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
10573 		if (val & (1<<6))
10574 			vars->link_status |=
10575 				LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
10576 		if (val & (1<<7))
10577 			vars->link_status |=
10578 				LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
10579 		if (val & (1<<8))
10580 			vars->link_status |=
10581 				LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
10582 		if (val & (1<<9))
10583 			vars->link_status |=
10584 				LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
10585 
10586 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10587 				MDIO_AN_REG_1000T_STATUS, &val);
10588 
10589 		if (val & (1<<10))
10590 			vars->link_status |=
10591 				LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
10592 		if (val & (1<<11))
10593 			vars->link_status |=
10594 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
10595 
10596 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10597 				MDIO_AN_REG_MASTER_STATUS, &val);
10598 
10599 		if (val & (1<<11))
10600 			vars->link_status |=
10601 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
10602 
10603 		/* Determine if EEE was negotiated */
10604 		if (bnx2x_is_8483x_8485x(phy))
10605 			bnx2x_eee_an_resolve(phy, params, vars);
10606 	}
10607 
10608 	return link_up;
10609 }
10610 
bnx2x_8485x_format_ver(u32 raw_ver,u8 * str,u16 * len)10611 static int bnx2x_8485x_format_ver(u32 raw_ver, u8 *str, u16 *len)
10612 {
10613 	u32 num;
10614 
10615 	num = ((raw_ver & 0xF80) >> 7) << 16 | ((raw_ver & 0x7F) << 8) |
10616 	      ((raw_ver & 0xF000) >> 12);
10617 	return bnx2x_3_seq_format_ver(num, str, len);
10618 }
10619 
bnx2x_848xx_format_ver(u32 raw_ver,u8 * str,u16 * len)10620 static int bnx2x_848xx_format_ver(u32 raw_ver, u8 *str, u16 *len)
10621 {
10622 	u32 spirom_ver;
10623 
10624 	spirom_ver = ((raw_ver & 0xF80) >> 7) << 16 | (raw_ver & 0x7F);
10625 	return bnx2x_format_ver(spirom_ver, str, len);
10626 }
10627 
bnx2x_8481_hw_reset(struct bnx2x_phy * phy,struct link_params * params)10628 static void bnx2x_8481_hw_reset(struct bnx2x_phy *phy,
10629 				struct link_params *params)
10630 {
10631 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
10632 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 0);
10633 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
10634 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 1);
10635 }
10636 
bnx2x_8481_link_reset(struct bnx2x_phy * phy,struct link_params * params)10637 static void bnx2x_8481_link_reset(struct bnx2x_phy *phy,
10638 					struct link_params *params)
10639 {
10640 	bnx2x_cl45_write(params->bp, phy,
10641 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
10642 	bnx2x_cl45_write(params->bp, phy,
10643 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1);
10644 }
10645 
bnx2x_848x3_link_reset(struct bnx2x_phy * phy,struct link_params * params)10646 static void bnx2x_848x3_link_reset(struct bnx2x_phy *phy,
10647 				   struct link_params *params)
10648 {
10649 	struct bnx2x *bp = params->bp;
10650 	u8 port;
10651 	u16 val16;
10652 
10653 	if (!(CHIP_IS_E1x(bp)))
10654 		port = BP_PATH(bp);
10655 	else
10656 		port = params->port;
10657 
10658 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10659 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
10660 			       MISC_REGISTERS_GPIO_OUTPUT_LOW,
10661 			       port);
10662 	} else {
10663 		bnx2x_cl45_read(bp, phy,
10664 				MDIO_CTL_DEVAD,
10665 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val16);
10666 		val16 |= MDIO_84833_SUPER_ISOLATE;
10667 		bnx2x_cl45_write(bp, phy,
10668 				 MDIO_CTL_DEVAD,
10669 				 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val16);
10670 	}
10671 }
10672 
bnx2x_848xx_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10673 static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
10674 				     struct link_params *params, u8 mode)
10675 {
10676 	struct bnx2x *bp = params->bp;
10677 	u16 val;
10678 	u8 port;
10679 
10680 	if (!(CHIP_IS_E1x(bp)))
10681 		port = BP_PATH(bp);
10682 	else
10683 		port = params->port;
10684 
10685 	switch (mode) {
10686 	case LED_MODE_OFF:
10687 
10688 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OFF\n", port);
10689 
10690 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10691 		    SHARED_HW_CFG_LED_EXTPHY1) {
10692 
10693 			/* Set LED masks */
10694 			bnx2x_cl45_write(bp, phy,
10695 					MDIO_PMA_DEVAD,
10696 					MDIO_PMA_REG_8481_LED1_MASK,
10697 					0x0);
10698 
10699 			bnx2x_cl45_write(bp, phy,
10700 					MDIO_PMA_DEVAD,
10701 					MDIO_PMA_REG_8481_LED2_MASK,
10702 					0x0);
10703 
10704 			bnx2x_cl45_write(bp, phy,
10705 					MDIO_PMA_DEVAD,
10706 					MDIO_PMA_REG_8481_LED3_MASK,
10707 					0x0);
10708 
10709 			bnx2x_cl45_write(bp, phy,
10710 					MDIO_PMA_DEVAD,
10711 					MDIO_PMA_REG_8481_LED5_MASK,
10712 					0x0);
10713 
10714 		} else {
10715 			/* LED 1 OFF */
10716 			bnx2x_cl45_write(bp, phy,
10717 					 MDIO_PMA_DEVAD,
10718 					 MDIO_PMA_REG_8481_LED1_MASK,
10719 					 0x0);
10720 
10721 			if (phy->type ==
10722 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
10723 				/* LED 2 OFF */
10724 				bnx2x_cl45_write(bp, phy,
10725 						 MDIO_PMA_DEVAD,
10726 						 MDIO_PMA_REG_8481_LED2_MASK,
10727 						 0x0);
10728 				/* LED 3 OFF */
10729 				bnx2x_cl45_write(bp, phy,
10730 						 MDIO_PMA_DEVAD,
10731 						 MDIO_PMA_REG_8481_LED3_MASK,
10732 						 0x0);
10733 			}
10734 		}
10735 		break;
10736 	case LED_MODE_FRONT_PANEL_OFF:
10737 
10738 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE FRONT PANEL OFF\n",
10739 		   port);
10740 
10741 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10742 		    SHARED_HW_CFG_LED_EXTPHY1) {
10743 
10744 			/* Set LED masks */
10745 			bnx2x_cl45_write(bp, phy,
10746 					 MDIO_PMA_DEVAD,
10747 					 MDIO_PMA_REG_8481_LED1_MASK,
10748 					 0x0);
10749 
10750 			bnx2x_cl45_write(bp, phy,
10751 					 MDIO_PMA_DEVAD,
10752 					 MDIO_PMA_REG_8481_LED2_MASK,
10753 					 0x0);
10754 
10755 			bnx2x_cl45_write(bp, phy,
10756 					 MDIO_PMA_DEVAD,
10757 					 MDIO_PMA_REG_8481_LED3_MASK,
10758 					 0x0);
10759 
10760 			bnx2x_cl45_write(bp, phy,
10761 					 MDIO_PMA_DEVAD,
10762 					 MDIO_PMA_REG_8481_LED5_MASK,
10763 					 0x20);
10764 
10765 		} else {
10766 			bnx2x_cl45_write(bp, phy,
10767 					 MDIO_PMA_DEVAD,
10768 					 MDIO_PMA_REG_8481_LED1_MASK,
10769 					 0x0);
10770 			if (phy->type ==
10771 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10772 				/* Disable MI_INT interrupt before setting LED4
10773 				 * source to constant off.
10774 				 */
10775 				if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
10776 					   params->port*4) &
10777 				    NIG_MASK_MI_INT) {
10778 					params->link_flags |=
10779 					LINK_FLAGS_INT_DISABLED;
10780 
10781 					bnx2x_bits_dis(
10782 						bp,
10783 						NIG_REG_MASK_INTERRUPT_PORT0 +
10784 						params->port*4,
10785 						NIG_MASK_MI_INT);
10786 				}
10787 				bnx2x_cl45_write(bp, phy,
10788 						 MDIO_PMA_DEVAD,
10789 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10790 						 0x0);
10791 			}
10792 			if (phy->type ==
10793 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
10794 				/* LED 2 OFF */
10795 				bnx2x_cl45_write(bp, phy,
10796 						 MDIO_PMA_DEVAD,
10797 						 MDIO_PMA_REG_8481_LED2_MASK,
10798 						 0x0);
10799 				/* LED 3 OFF */
10800 				bnx2x_cl45_write(bp, phy,
10801 						 MDIO_PMA_DEVAD,
10802 						 MDIO_PMA_REG_8481_LED3_MASK,
10803 						 0x0);
10804 			}
10805 		}
10806 		break;
10807 	case LED_MODE_ON:
10808 
10809 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE ON\n", port);
10810 
10811 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10812 		    SHARED_HW_CFG_LED_EXTPHY1) {
10813 			/* Set control reg */
10814 			bnx2x_cl45_read(bp, phy,
10815 					MDIO_PMA_DEVAD,
10816 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10817 					&val);
10818 			val &= 0x8000;
10819 			val |= 0x2492;
10820 
10821 			bnx2x_cl45_write(bp, phy,
10822 					 MDIO_PMA_DEVAD,
10823 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10824 					 val);
10825 
10826 			/* Set LED masks */
10827 			bnx2x_cl45_write(bp, phy,
10828 					 MDIO_PMA_DEVAD,
10829 					 MDIO_PMA_REG_8481_LED1_MASK,
10830 					 0x0);
10831 
10832 			bnx2x_cl45_write(bp, phy,
10833 					 MDIO_PMA_DEVAD,
10834 					 MDIO_PMA_REG_8481_LED2_MASK,
10835 					 0x20);
10836 
10837 			bnx2x_cl45_write(bp, phy,
10838 					 MDIO_PMA_DEVAD,
10839 					 MDIO_PMA_REG_8481_LED3_MASK,
10840 					 0x20);
10841 
10842 			bnx2x_cl45_write(bp, phy,
10843 					 MDIO_PMA_DEVAD,
10844 					 MDIO_PMA_REG_8481_LED5_MASK,
10845 					 0x0);
10846 		} else {
10847 			bnx2x_cl45_write(bp, phy,
10848 					 MDIO_PMA_DEVAD,
10849 					 MDIO_PMA_REG_8481_LED1_MASK,
10850 					 0x20);
10851 			if (phy->type ==
10852 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10853 				/* Disable MI_INT interrupt before setting LED4
10854 				 * source to constant on.
10855 				 */
10856 				if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
10857 					   params->port*4) &
10858 				    NIG_MASK_MI_INT) {
10859 					params->link_flags |=
10860 					LINK_FLAGS_INT_DISABLED;
10861 
10862 					bnx2x_bits_dis(
10863 						bp,
10864 						NIG_REG_MASK_INTERRUPT_PORT0 +
10865 						params->port*4,
10866 						NIG_MASK_MI_INT);
10867 				}
10868 			}
10869 			if (phy->type ==
10870 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
10871 				/* Tell LED3 to constant on */
10872 				bnx2x_cl45_read(bp, phy,
10873 						MDIO_PMA_DEVAD,
10874 						MDIO_PMA_REG_8481_LINK_SIGNAL,
10875 						&val);
10876 				val &= ~(7<<6);
10877 				val |= (2<<6);  /* A83B[8:6]= 2 */
10878 				bnx2x_cl45_write(bp, phy,
10879 						 MDIO_PMA_DEVAD,
10880 						 MDIO_PMA_REG_8481_LINK_SIGNAL,
10881 						 val);
10882 				bnx2x_cl45_write(bp, phy,
10883 						 MDIO_PMA_DEVAD,
10884 						 MDIO_PMA_REG_8481_LED3_MASK,
10885 						 0x20);
10886 			} else {
10887 				bnx2x_cl45_write(bp, phy,
10888 						 MDIO_PMA_DEVAD,
10889 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10890 						 0x20);
10891 			}
10892 		}
10893 		break;
10894 
10895 	case LED_MODE_OPER:
10896 
10897 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OPER\n", port);
10898 
10899 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10900 		    SHARED_HW_CFG_LED_EXTPHY1) {
10901 
10902 			/* Set control reg */
10903 			bnx2x_cl45_read(bp, phy,
10904 					MDIO_PMA_DEVAD,
10905 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10906 					&val);
10907 
10908 			if (!((val &
10909 			       MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_MASK)
10910 			  >> MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_SHIFT)) {
10911 				DP(NETIF_MSG_LINK, "Setting LINK_SIGNAL\n");
10912 				bnx2x_cl45_write(bp, phy,
10913 						 MDIO_PMA_DEVAD,
10914 						 MDIO_PMA_REG_8481_LINK_SIGNAL,
10915 						 0xa492);
10916 			}
10917 
10918 			/* Set LED masks */
10919 			bnx2x_cl45_write(bp, phy,
10920 					 MDIO_PMA_DEVAD,
10921 					 MDIO_PMA_REG_8481_LED1_MASK,
10922 					 0x10);
10923 
10924 			bnx2x_cl45_write(bp, phy,
10925 					 MDIO_PMA_DEVAD,
10926 					 MDIO_PMA_REG_8481_LED2_MASK,
10927 					 0x80);
10928 
10929 			bnx2x_cl45_write(bp, phy,
10930 					 MDIO_PMA_DEVAD,
10931 					 MDIO_PMA_REG_8481_LED3_MASK,
10932 					 0x98);
10933 
10934 			bnx2x_cl45_write(bp, phy,
10935 					 MDIO_PMA_DEVAD,
10936 					 MDIO_PMA_REG_8481_LED5_MASK,
10937 					 0x40);
10938 
10939 		} else {
10940 			/* EXTPHY2 LED mode indicate that the 100M/1G/10G LED
10941 			 * sources are all wired through LED1, rather than only
10942 			 * 10G in other modes.
10943 			 */
10944 			val = ((params->hw_led_mode <<
10945 				SHARED_HW_CFG_LED_MODE_SHIFT) ==
10946 			       SHARED_HW_CFG_LED_EXTPHY2) ? 0x98 : 0x80;
10947 
10948 			bnx2x_cl45_write(bp, phy,
10949 					 MDIO_PMA_DEVAD,
10950 					 MDIO_PMA_REG_8481_LED1_MASK,
10951 					 val);
10952 
10953 			/* Tell LED3 to blink on source */
10954 			bnx2x_cl45_read(bp, phy,
10955 					MDIO_PMA_DEVAD,
10956 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10957 					&val);
10958 			val &= ~(7<<6);
10959 			val |= (1<<6); /* A83B[8:6]= 1 */
10960 			bnx2x_cl45_write(bp, phy,
10961 					 MDIO_PMA_DEVAD,
10962 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10963 					 val);
10964 			if (phy->type ==
10965 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858) {
10966 				bnx2x_cl45_write(bp, phy,
10967 						 MDIO_PMA_DEVAD,
10968 						 MDIO_PMA_REG_8481_LED2_MASK,
10969 						 0x18);
10970 				bnx2x_cl45_write(bp, phy,
10971 						 MDIO_PMA_DEVAD,
10972 						 MDIO_PMA_REG_8481_LED3_MASK,
10973 						 0x06);
10974 			}
10975 			if (phy->type ==
10976 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10977 				/* Restore LED4 source to external link,
10978 				 * and re-enable interrupts.
10979 				 */
10980 				bnx2x_cl45_write(bp, phy,
10981 						 MDIO_PMA_DEVAD,
10982 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10983 						 0x40);
10984 				if (params->link_flags &
10985 				    LINK_FLAGS_INT_DISABLED) {
10986 					bnx2x_link_int_enable(params);
10987 					params->link_flags &=
10988 						~LINK_FLAGS_INT_DISABLED;
10989 				}
10990 			}
10991 		}
10992 		break;
10993 	}
10994 
10995 	/* This is a workaround for E3+84833 until autoneg
10996 	 * restart is fixed in f/w
10997 	 */
10998 	if (CHIP_IS_E3(bp)) {
10999 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
11000 				MDIO_WC_REG_GP2_STATUS_GP_2_1, &val);
11001 	}
11002 }
11003 
11004 /******************************************************************/
11005 /*			54618SE PHY SECTION			  */
11006 /******************************************************************/
bnx2x_54618se_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)11007 static void bnx2x_54618se_specific_func(struct bnx2x_phy *phy,
11008 					struct link_params *params,
11009 					u32 action)
11010 {
11011 	struct bnx2x *bp = params->bp;
11012 	u16 temp;
11013 	switch (action) {
11014 	case PHY_INIT:
11015 		/* Configure LED4: set to INTR (0x6). */
11016 		/* Accessing shadow register 0xe. */
11017 		bnx2x_cl22_write(bp, phy,
11018 				 MDIO_REG_GPHY_SHADOW,
11019 				 MDIO_REG_GPHY_SHADOW_LED_SEL2);
11020 		bnx2x_cl22_read(bp, phy,
11021 				MDIO_REG_GPHY_SHADOW,
11022 				&temp);
11023 		temp &= ~(0xf << 4);
11024 		temp |= (0x6 << 4);
11025 		bnx2x_cl22_write(bp, phy,
11026 				 MDIO_REG_GPHY_SHADOW,
11027 				 MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
11028 		/* Configure INTR based on link status change. */
11029 		bnx2x_cl22_write(bp, phy,
11030 				 MDIO_REG_INTR_MASK,
11031 				 ~MDIO_REG_INTR_MASK_LINK_STATUS);
11032 		break;
11033 	}
11034 }
11035 
bnx2x_54618se_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11036 static void bnx2x_54618se_config_init(struct bnx2x_phy *phy,
11037 				      struct link_params *params,
11038 				      struct link_vars *vars)
11039 {
11040 	struct bnx2x *bp = params->bp;
11041 	u8 port;
11042 	u16 autoneg_val, an_1000_val, an_10_100_val, fc_val, temp;
11043 	u32 cfg_pin;
11044 
11045 	DP(NETIF_MSG_LINK, "54618SE cfg init\n");
11046 	usleep_range(1000, 2000);
11047 
11048 	/* This works with E3 only, no need to check the chip
11049 	 * before determining the port.
11050 	 */
11051 	port = params->port;
11052 
11053 	cfg_pin = (REG_RD(bp, params->shmem_base +
11054 			offsetof(struct shmem_region,
11055 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
11056 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
11057 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
11058 
11059 	/* Drive pin high to bring the GPHY out of reset. */
11060 	bnx2x_set_cfg_pin(bp, cfg_pin, 1);
11061 
11062 	/* wait for GPHY to reset */
11063 	msleep(50);
11064 
11065 	/* reset phy */
11066 	bnx2x_cl22_write(bp, phy,
11067 			 MDIO_PMA_REG_CTRL, 0x8000);
11068 	bnx2x_wait_reset_complete(bp, phy, params);
11069 
11070 	/* Wait for GPHY to reset */
11071 	msleep(50);
11072 
11073 
11074 	bnx2x_54618se_specific_func(phy, params, PHY_INIT);
11075 	/* Flip the signal detect polarity (set 0x1c.0x1e[8]). */
11076 	bnx2x_cl22_write(bp, phy,
11077 			MDIO_REG_GPHY_SHADOW,
11078 			MDIO_REG_GPHY_SHADOW_AUTO_DET_MED);
11079 	bnx2x_cl22_read(bp, phy,
11080 			MDIO_REG_GPHY_SHADOW,
11081 			&temp);
11082 	temp |= MDIO_REG_GPHY_SHADOW_INVERT_FIB_SD;
11083 	bnx2x_cl22_write(bp, phy,
11084 			MDIO_REG_GPHY_SHADOW,
11085 			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
11086 
11087 	/* Set up fc */
11088 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
11089 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
11090 	fc_val = 0;
11091 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
11092 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC)
11093 		fc_val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
11094 
11095 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
11096 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
11097 		fc_val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
11098 
11099 	/* Read all advertisement */
11100 	bnx2x_cl22_read(bp, phy,
11101 			0x09,
11102 			&an_1000_val);
11103 
11104 	bnx2x_cl22_read(bp, phy,
11105 			0x04,
11106 			&an_10_100_val);
11107 
11108 	bnx2x_cl22_read(bp, phy,
11109 			MDIO_PMA_REG_CTRL,
11110 			&autoneg_val);
11111 
11112 	/* Disable forced speed */
11113 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
11114 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8) | (1<<10) |
11115 			   (1<<11));
11116 
11117 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
11118 	     (phy->speed_cap_mask &
11119 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
11120 	    (phy->req_line_speed == SPEED_1000)) {
11121 		an_1000_val |= (1<<8);
11122 		autoneg_val |= (1<<9 | 1<<12);
11123 		if (phy->req_duplex == DUPLEX_FULL)
11124 			an_1000_val |= (1<<9);
11125 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
11126 	} else
11127 		an_1000_val &= ~((1<<8) | (1<<9));
11128 
11129 	bnx2x_cl22_write(bp, phy,
11130 			0x09,
11131 			an_1000_val);
11132 	bnx2x_cl22_read(bp, phy,
11133 			0x09,
11134 			&an_1000_val);
11135 
11136 	/* Advertise 10/100 link speed */
11137 	if (phy->req_line_speed == SPEED_AUTO_NEG) {
11138 		if (phy->speed_cap_mask &
11139 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) {
11140 			an_10_100_val |= (1<<5);
11141 			autoneg_val |= (1<<9 | 1<<12);
11142 			DP(NETIF_MSG_LINK, "Advertising 10M-HD\n");
11143 		}
11144 		if (phy->speed_cap_mask &
11145 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) {
11146 			an_10_100_val |= (1<<6);
11147 			autoneg_val |= (1<<9 | 1<<12);
11148 			DP(NETIF_MSG_LINK, "Advertising 10M-FD\n");
11149 		}
11150 		if (phy->speed_cap_mask &
11151 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
11152 			an_10_100_val |= (1<<7);
11153 			autoneg_val |= (1<<9 | 1<<12);
11154 			DP(NETIF_MSG_LINK, "Advertising 100M-HD\n");
11155 		}
11156 		if (phy->speed_cap_mask &
11157 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
11158 			an_10_100_val |= (1<<8);
11159 			autoneg_val |= (1<<9 | 1<<12);
11160 			DP(NETIF_MSG_LINK, "Advertising 100M-FD\n");
11161 		}
11162 	}
11163 
11164 	/* Only 10/100 are allowed to work in FORCE mode */
11165 	if (phy->req_line_speed == SPEED_100) {
11166 		autoneg_val |= (1<<13);
11167 		/* Enabled AUTO-MDIX when autoneg is disabled */
11168 		bnx2x_cl22_write(bp, phy,
11169 				0x18,
11170 				(1<<15 | 1<<9 | 7<<0));
11171 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
11172 	}
11173 	if (phy->req_line_speed == SPEED_10) {
11174 		/* Enabled AUTO-MDIX when autoneg is disabled */
11175 		bnx2x_cl22_write(bp, phy,
11176 				0x18,
11177 				(1<<15 | 1<<9 | 7<<0));
11178 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
11179 	}
11180 
11181 	if ((phy->flags & FLAGS_EEE) && bnx2x_eee_has_cap(params)) {
11182 		int rc;
11183 
11184 		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS,
11185 				 MDIO_REG_GPHY_EXP_ACCESS_TOP |
11186 				 MDIO_REG_GPHY_EXP_TOP_2K_BUF);
11187 		bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, &temp);
11188 		temp &= 0xfffe;
11189 		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, temp);
11190 
11191 		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_1G_ADV);
11192 		if (rc) {
11193 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
11194 			bnx2x_eee_disable(phy, params, vars);
11195 		} else if ((params->eee_mode & EEE_MODE_ADV_LPI) &&
11196 			   (phy->req_duplex == DUPLEX_FULL) &&
11197 			   (bnx2x_eee_calc_timer(params) ||
11198 			    !(params->eee_mode & EEE_MODE_ENABLE_LPI))) {
11199 			/* Need to advertise EEE only when requested,
11200 			 * and either no LPI assertion was requested,
11201 			 * or it was requested and a valid timer was set.
11202 			 * Also notice full duplex is required for EEE.
11203 			 */
11204 			bnx2x_eee_advertise(phy, params, vars,
11205 					    SHMEM_EEE_1G_ADV);
11206 		} else {
11207 			DP(NETIF_MSG_LINK, "Don't Advertise 1GBase-T EEE\n");
11208 			bnx2x_eee_disable(phy, params, vars);
11209 		}
11210 	} else {
11211 		vars->eee_status &= ~SHMEM_EEE_1G_ADV <<
11212 				    SHMEM_EEE_SUPPORTED_SHIFT;
11213 
11214 		if (phy->flags & FLAGS_EEE) {
11215 			/* Handle legacy auto-grEEEn */
11216 			if (params->feature_config_flags &
11217 			    FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
11218 				temp = 6;
11219 				DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n");
11220 			} else {
11221 				temp = 0;
11222 				DP(NETIF_MSG_LINK, "Don't Adv. EEE\n");
11223 			}
11224 			bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
11225 					 MDIO_AN_REG_EEE_ADV, temp);
11226 		}
11227 	}
11228 
11229 	bnx2x_cl22_write(bp, phy,
11230 			0x04,
11231 			an_10_100_val | fc_val);
11232 
11233 	if (phy->req_duplex == DUPLEX_FULL)
11234 		autoneg_val |= (1<<8);
11235 
11236 	bnx2x_cl22_write(bp, phy,
11237 			MDIO_PMA_REG_CTRL, autoneg_val);
11238 }
11239 
11240 
bnx2x_5461x_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)11241 static void bnx2x_5461x_set_link_led(struct bnx2x_phy *phy,
11242 				       struct link_params *params, u8 mode)
11243 {
11244 	struct bnx2x *bp = params->bp;
11245 	u16 temp;
11246 
11247 	bnx2x_cl22_write(bp, phy,
11248 		MDIO_REG_GPHY_SHADOW,
11249 		MDIO_REG_GPHY_SHADOW_LED_SEL1);
11250 	bnx2x_cl22_read(bp, phy,
11251 		MDIO_REG_GPHY_SHADOW,
11252 		&temp);
11253 	temp &= 0xff00;
11254 
11255 	DP(NETIF_MSG_LINK, "54618x set link led (mode=%x)\n", mode);
11256 	switch (mode) {
11257 	case LED_MODE_FRONT_PANEL_OFF:
11258 	case LED_MODE_OFF:
11259 		temp |= 0x00ee;
11260 		break;
11261 	case LED_MODE_OPER:
11262 		temp |= 0x0001;
11263 		break;
11264 	case LED_MODE_ON:
11265 		temp |= 0x00ff;
11266 		break;
11267 	default:
11268 		break;
11269 	}
11270 	bnx2x_cl22_write(bp, phy,
11271 		MDIO_REG_GPHY_SHADOW,
11272 		MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
11273 	return;
11274 }
11275 
11276 
bnx2x_54618se_link_reset(struct bnx2x_phy * phy,struct link_params * params)11277 static void bnx2x_54618se_link_reset(struct bnx2x_phy *phy,
11278 				     struct link_params *params)
11279 {
11280 	struct bnx2x *bp = params->bp;
11281 	u32 cfg_pin;
11282 	u8 port;
11283 
11284 	/* In case of no EPIO routed to reset the GPHY, put it
11285 	 * in low power mode.
11286 	 */
11287 	bnx2x_cl22_write(bp, phy, MDIO_PMA_REG_CTRL, 0x800);
11288 	/* This works with E3 only, no need to check the chip
11289 	 * before determining the port.
11290 	 */
11291 	port = params->port;
11292 	cfg_pin = (REG_RD(bp, params->shmem_base +
11293 			offsetof(struct shmem_region,
11294 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
11295 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
11296 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
11297 
11298 	/* Drive pin low to put GPHY in reset. */
11299 	bnx2x_set_cfg_pin(bp, cfg_pin, 0);
11300 }
11301 
bnx2x_54618se_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11302 static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy,
11303 				    struct link_params *params,
11304 				    struct link_vars *vars)
11305 {
11306 	struct bnx2x *bp = params->bp;
11307 	u16 val;
11308 	u8 link_up = 0;
11309 	u16 legacy_status, legacy_speed;
11310 
11311 	/* Get speed operation status */
11312 	bnx2x_cl22_read(bp, phy,
11313 			MDIO_REG_GPHY_AUX_STATUS,
11314 			&legacy_status);
11315 	DP(NETIF_MSG_LINK, "54618SE read_status: 0x%x\n", legacy_status);
11316 
11317 	/* Read status to clear the PHY interrupt. */
11318 	bnx2x_cl22_read(bp, phy,
11319 			MDIO_REG_INTR_STATUS,
11320 			&val);
11321 
11322 	link_up = ((legacy_status & (1<<2)) == (1<<2));
11323 
11324 	if (link_up) {
11325 		legacy_speed = (legacy_status & (7<<8));
11326 		if (legacy_speed == (7<<8)) {
11327 			vars->line_speed = SPEED_1000;
11328 			vars->duplex = DUPLEX_FULL;
11329 		} else if (legacy_speed == (6<<8)) {
11330 			vars->line_speed = SPEED_1000;
11331 			vars->duplex = DUPLEX_HALF;
11332 		} else if (legacy_speed == (5<<8)) {
11333 			vars->line_speed = SPEED_100;
11334 			vars->duplex = DUPLEX_FULL;
11335 		}
11336 		/* Omitting 100Base-T4 for now */
11337 		else if (legacy_speed == (3<<8)) {
11338 			vars->line_speed = SPEED_100;
11339 			vars->duplex = DUPLEX_HALF;
11340 		} else if (legacy_speed == (2<<8)) {
11341 			vars->line_speed = SPEED_10;
11342 			vars->duplex = DUPLEX_FULL;
11343 		} else if (legacy_speed == (1<<8)) {
11344 			vars->line_speed = SPEED_10;
11345 			vars->duplex = DUPLEX_HALF;
11346 		} else /* Should not happen */
11347 			vars->line_speed = 0;
11348 
11349 		DP(NETIF_MSG_LINK,
11350 		   "Link is up in %dMbps, is_duplex_full= %d\n",
11351 		   vars->line_speed,
11352 		   (vars->duplex == DUPLEX_FULL));
11353 
11354 		/* Check legacy speed AN resolution */
11355 		bnx2x_cl22_read(bp, phy,
11356 				0x01,
11357 				&val);
11358 		if (val & (1<<5))
11359 			vars->link_status |=
11360 				LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
11361 		bnx2x_cl22_read(bp, phy,
11362 				0x06,
11363 				&val);
11364 		if ((val & (1<<0)) == 0)
11365 			vars->link_status |=
11366 				LINK_STATUS_PARALLEL_DETECTION_USED;
11367 
11368 		DP(NETIF_MSG_LINK, "BCM54618SE: link speed is %d\n",
11369 			   vars->line_speed);
11370 
11371 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
11372 
11373 		if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
11374 			/* Report LP advertised speeds */
11375 			bnx2x_cl22_read(bp, phy, 0x5, &val);
11376 
11377 			if (val & (1<<5))
11378 				vars->link_status |=
11379 				  LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
11380 			if (val & (1<<6))
11381 				vars->link_status |=
11382 				  LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
11383 			if (val & (1<<7))
11384 				vars->link_status |=
11385 				  LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
11386 			if (val & (1<<8))
11387 				vars->link_status |=
11388 				  LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
11389 			if (val & (1<<9))
11390 				vars->link_status |=
11391 				  LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
11392 
11393 			bnx2x_cl22_read(bp, phy, 0xa, &val);
11394 			if (val & (1<<10))
11395 				vars->link_status |=
11396 				  LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
11397 			if (val & (1<<11))
11398 				vars->link_status |=
11399 				  LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
11400 
11401 			if ((phy->flags & FLAGS_EEE) &&
11402 			    bnx2x_eee_has_cap(params))
11403 				bnx2x_eee_an_resolve(phy, params, vars);
11404 		}
11405 	}
11406 	return link_up;
11407 }
11408 
bnx2x_54618se_config_loopback(struct bnx2x_phy * phy,struct link_params * params)11409 static void bnx2x_54618se_config_loopback(struct bnx2x_phy *phy,
11410 					  struct link_params *params)
11411 {
11412 	struct bnx2x *bp = params->bp;
11413 	u16 val;
11414 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
11415 
11416 	DP(NETIF_MSG_LINK, "2PMA/PMD ext_phy_loopback: 54618se\n");
11417 
11418 	/* Enable master/slave manual mmode and set to master */
11419 	/* mii write 9 [bits set 11 12] */
11420 	bnx2x_cl22_write(bp, phy, 0x09, 3<<11);
11421 
11422 	/* forced 1G and disable autoneg */
11423 	/* set val [mii read 0] */
11424 	/* set val [expr $val & [bits clear 6 12 13]] */
11425 	/* set val [expr $val | [bits set 6 8]] */
11426 	/* mii write 0 $val */
11427 	bnx2x_cl22_read(bp, phy, 0x00, &val);
11428 	val &= ~((1<<6) | (1<<12) | (1<<13));
11429 	val |= (1<<6) | (1<<8);
11430 	bnx2x_cl22_write(bp, phy, 0x00, val);
11431 
11432 	/* Set external loopback and Tx using 6dB coding */
11433 	/* mii write 0x18 7 */
11434 	/* set val [mii read 0x18] */
11435 	/* mii write 0x18 [expr $val | [bits set 10 15]] */
11436 	bnx2x_cl22_write(bp, phy, 0x18, 7);
11437 	bnx2x_cl22_read(bp, phy, 0x18, &val);
11438 	bnx2x_cl22_write(bp, phy, 0x18, val | (1<<10) | (1<<15));
11439 
11440 	/* This register opens the gate for the UMAC despite its name */
11441 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
11442 
11443 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
11444 	 * length used by the MAC receive logic to check frames.
11445 	 */
11446 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
11447 }
11448 
11449 /******************************************************************/
11450 /*			SFX7101 PHY SECTION			  */
11451 /******************************************************************/
bnx2x_7101_config_loopback(struct bnx2x_phy * phy,struct link_params * params)11452 static void bnx2x_7101_config_loopback(struct bnx2x_phy *phy,
11453 				       struct link_params *params)
11454 {
11455 	struct bnx2x *bp = params->bp;
11456 	/* SFX7101_XGXS_TEST1 */
11457 	bnx2x_cl45_write(bp, phy,
11458 			 MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
11459 }
11460 
bnx2x_7101_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11461 static void bnx2x_7101_config_init(struct bnx2x_phy *phy,
11462 				   struct link_params *params,
11463 				   struct link_vars *vars)
11464 {
11465 	u16 fw_ver1, fw_ver2, val;
11466 	struct bnx2x *bp = params->bp;
11467 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LASI indication\n");
11468 
11469 	/* Restore normal power mode*/
11470 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
11471 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
11472 	/* HW reset */
11473 	bnx2x_ext_phy_hw_reset(bp, params->port);
11474 	bnx2x_wait_reset_complete(bp, phy, params);
11475 
11476 	bnx2x_cl45_write(bp, phy,
11477 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x1);
11478 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LED to blink on traffic\n");
11479 	bnx2x_cl45_write(bp, phy,
11480 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_7107_LED_CNTL, (1<<3));
11481 
11482 	bnx2x_ext_phy_set_pause(params, phy, vars);
11483 	/* Restart autoneg */
11484 	bnx2x_cl45_read(bp, phy,
11485 			MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, &val);
11486 	val |= 0x200;
11487 	bnx2x_cl45_write(bp, phy,
11488 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, val);
11489 
11490 	/* Save spirom version */
11491 	bnx2x_cl45_read(bp, phy,
11492 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER1, &fw_ver1);
11493 
11494 	bnx2x_cl45_read(bp, phy,
11495 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
11496 	bnx2x_save_spirom_version(bp, params->port,
11497 				  (u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
11498 }
11499 
bnx2x_7101_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11500 static u8 bnx2x_7101_read_status(struct bnx2x_phy *phy,
11501 				 struct link_params *params,
11502 				 struct link_vars *vars)
11503 {
11504 	struct bnx2x *bp = params->bp;
11505 	u8 link_up;
11506 	u16 val1, val2;
11507 	bnx2x_cl45_read(bp, phy,
11508 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
11509 	bnx2x_cl45_read(bp, phy,
11510 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
11511 	DP(NETIF_MSG_LINK, "10G-base-T LASI status 0x%x->0x%x\n",
11512 		   val2, val1);
11513 	bnx2x_cl45_read(bp, phy,
11514 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
11515 	bnx2x_cl45_read(bp, phy,
11516 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
11517 	DP(NETIF_MSG_LINK, "10G-base-T PMA status 0x%x->0x%x\n",
11518 		   val2, val1);
11519 	link_up = ((val1 & 4) == 4);
11520 	/* If link is up print the AN outcome of the SFX7101 PHY */
11521 	if (link_up) {
11522 		bnx2x_cl45_read(bp, phy,
11523 				MDIO_AN_DEVAD, MDIO_AN_REG_MASTER_STATUS,
11524 				&val2);
11525 		vars->line_speed = SPEED_10000;
11526 		vars->duplex = DUPLEX_FULL;
11527 		DP(NETIF_MSG_LINK, "SFX7101 AN status 0x%x->Master=%x\n",
11528 			   val2, (val2 & (1<<14)));
11529 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
11530 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
11531 
11532 		/* Read LP advertised speeds */
11533 		if (val2 & (1<<11))
11534 			vars->link_status |=
11535 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
11536 	}
11537 	return link_up;
11538 }
11539 
bnx2x_7101_format_ver(u32 spirom_ver,u8 * str,u16 * len)11540 static int bnx2x_7101_format_ver(u32 spirom_ver, u8 *str, u16 *len)
11541 {
11542 	if (*len < 5)
11543 		return -EINVAL;
11544 	str[0] = (spirom_ver & 0xFF);
11545 	str[1] = (spirom_ver & 0xFF00) >> 8;
11546 	str[2] = (spirom_ver & 0xFF0000) >> 16;
11547 	str[3] = (spirom_ver & 0xFF000000) >> 24;
11548 	str[4] = '\0';
11549 	*len -= 5;
11550 	return 0;
11551 }
11552 
bnx2x_sfx7101_sp_sw_reset(struct bnx2x * bp,struct bnx2x_phy * phy)11553 void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, struct bnx2x_phy *phy)
11554 {
11555 	u16 val, cnt;
11556 
11557 	bnx2x_cl45_read(bp, phy,
11558 			MDIO_PMA_DEVAD,
11559 			MDIO_PMA_REG_7101_RESET, &val);
11560 
11561 	for (cnt = 0; cnt < 10; cnt++) {
11562 		msleep(50);
11563 		/* Writes a self-clearing reset */
11564 		bnx2x_cl45_write(bp, phy,
11565 				 MDIO_PMA_DEVAD,
11566 				 MDIO_PMA_REG_7101_RESET,
11567 				 (val | (1<<15)));
11568 		/* Wait for clear */
11569 		bnx2x_cl45_read(bp, phy,
11570 				MDIO_PMA_DEVAD,
11571 				MDIO_PMA_REG_7101_RESET, &val);
11572 
11573 		if ((val & (1<<15)) == 0)
11574 			break;
11575 	}
11576 }
11577 
bnx2x_7101_hw_reset(struct bnx2x_phy * phy,struct link_params * params)11578 static void bnx2x_7101_hw_reset(struct bnx2x_phy *phy,
11579 				struct link_params *params) {
11580 	/* Low power mode is controlled by GPIO 2 */
11581 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_2,
11582 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
11583 	/* The PHY reset is controlled by GPIO 1 */
11584 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
11585 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
11586 }
11587 
bnx2x_7101_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)11588 static void bnx2x_7101_set_link_led(struct bnx2x_phy *phy,
11589 				    struct link_params *params, u8 mode)
11590 {
11591 	u16 val = 0;
11592 	struct bnx2x *bp = params->bp;
11593 	switch (mode) {
11594 	case LED_MODE_FRONT_PANEL_OFF:
11595 	case LED_MODE_OFF:
11596 		val = 2;
11597 		break;
11598 	case LED_MODE_ON:
11599 		val = 1;
11600 		break;
11601 	case LED_MODE_OPER:
11602 		val = 0;
11603 		break;
11604 	}
11605 	bnx2x_cl45_write(bp, phy,
11606 			 MDIO_PMA_DEVAD,
11607 			 MDIO_PMA_REG_7107_LINK_LED_CNTL,
11608 			 val);
11609 }
11610 
11611 /******************************************************************/
11612 /*			STATIC PHY DECLARATION			  */
11613 /******************************************************************/
11614 
11615 static const struct bnx2x_phy phy_null = {
11616 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN,
11617 	.addr		= 0,
11618 	.def_md_devad	= 0,
11619 	.flags		= FLAGS_INIT_XGXS_FIRST,
11620 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11621 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11622 	.mdio_ctrl	= 0,
11623 	.supported	= 0,
11624 	.media_type	= ETH_PHY_NOT_PRESENT,
11625 	.ver_addr	= 0,
11626 	.req_flow_ctrl	= 0,
11627 	.req_line_speed	= 0,
11628 	.speed_cap_mask	= 0,
11629 	.req_duplex	= 0,
11630 	.rsrv		= 0,
11631 	.config_init	= NULL,
11632 	.read_status	= NULL,
11633 	.link_reset	= NULL,
11634 	.config_loopback = NULL,
11635 	.format_fw_ver	= NULL,
11636 	.hw_reset	= NULL,
11637 	.set_link_led	= NULL,
11638 	.phy_specific_func = NULL
11639 };
11640 
11641 static const struct bnx2x_phy phy_serdes = {
11642 	.type		= PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT,
11643 	.addr		= 0xff,
11644 	.def_md_devad	= 0,
11645 	.flags		= 0,
11646 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11647 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11648 	.mdio_ctrl	= 0,
11649 	.supported	= (SUPPORTED_10baseT_Half |
11650 			   SUPPORTED_10baseT_Full |
11651 			   SUPPORTED_100baseT_Half |
11652 			   SUPPORTED_100baseT_Full |
11653 			   SUPPORTED_1000baseT_Full |
11654 			   SUPPORTED_2500baseX_Full |
11655 			   SUPPORTED_TP |
11656 			   SUPPORTED_Autoneg |
11657 			   SUPPORTED_Pause |
11658 			   SUPPORTED_Asym_Pause),
11659 	.media_type	= ETH_PHY_BASE_T,
11660 	.ver_addr	= 0,
11661 	.req_flow_ctrl	= 0,
11662 	.req_line_speed	= 0,
11663 	.speed_cap_mask	= 0,
11664 	.req_duplex	= 0,
11665 	.rsrv		= 0,
11666 	.config_init	= bnx2x_xgxs_config_init,
11667 	.read_status	= bnx2x_link_settings_status,
11668 	.link_reset	= bnx2x_int_link_reset,
11669 	.config_loopback = NULL,
11670 	.format_fw_ver	= NULL,
11671 	.hw_reset	= NULL,
11672 	.set_link_led	= NULL,
11673 	.phy_specific_func = NULL
11674 };
11675 
11676 static const struct bnx2x_phy phy_xgxs = {
11677 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
11678 	.addr		= 0xff,
11679 	.def_md_devad	= 0,
11680 	.flags		= 0,
11681 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11682 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11683 	.mdio_ctrl	= 0,
11684 	.supported	= (SUPPORTED_10baseT_Half |
11685 			   SUPPORTED_10baseT_Full |
11686 			   SUPPORTED_100baseT_Half |
11687 			   SUPPORTED_100baseT_Full |
11688 			   SUPPORTED_1000baseT_Full |
11689 			   SUPPORTED_2500baseX_Full |
11690 			   SUPPORTED_10000baseT_Full |
11691 			   SUPPORTED_FIBRE |
11692 			   SUPPORTED_Autoneg |
11693 			   SUPPORTED_Pause |
11694 			   SUPPORTED_Asym_Pause),
11695 	.media_type	= ETH_PHY_CX4,
11696 	.ver_addr	= 0,
11697 	.req_flow_ctrl	= 0,
11698 	.req_line_speed	= 0,
11699 	.speed_cap_mask	= 0,
11700 	.req_duplex	= 0,
11701 	.rsrv		= 0,
11702 	.config_init	= bnx2x_xgxs_config_init,
11703 	.read_status	= bnx2x_link_settings_status,
11704 	.link_reset	= bnx2x_int_link_reset,
11705 	.config_loopback = bnx2x_set_xgxs_loopback,
11706 	.format_fw_ver	= NULL,
11707 	.hw_reset	= NULL,
11708 	.set_link_led	= NULL,
11709 	.phy_specific_func = bnx2x_xgxs_specific_func
11710 };
11711 static const struct bnx2x_phy phy_warpcore = {
11712 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
11713 	.addr		= 0xff,
11714 	.def_md_devad	= 0,
11715 	.flags		= FLAGS_TX_ERROR_CHECK,
11716 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11717 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11718 	.mdio_ctrl	= 0,
11719 	.supported	= (SUPPORTED_10baseT_Half |
11720 			   SUPPORTED_10baseT_Full |
11721 			   SUPPORTED_100baseT_Half |
11722 			   SUPPORTED_100baseT_Full |
11723 			   SUPPORTED_1000baseT_Full |
11724 			   SUPPORTED_1000baseKX_Full |
11725 			   SUPPORTED_10000baseT_Full |
11726 			   SUPPORTED_10000baseKR_Full |
11727 			   SUPPORTED_20000baseKR2_Full |
11728 			   SUPPORTED_20000baseMLD2_Full |
11729 			   SUPPORTED_FIBRE |
11730 			   SUPPORTED_Autoneg |
11731 			   SUPPORTED_Pause |
11732 			   SUPPORTED_Asym_Pause),
11733 	.media_type	= ETH_PHY_UNSPECIFIED,
11734 	.ver_addr	= 0,
11735 	.req_flow_ctrl	= 0,
11736 	.req_line_speed	= 0,
11737 	.speed_cap_mask	= 0,
11738 	/* req_duplex = */0,
11739 	/* rsrv = */0,
11740 	.config_init	= bnx2x_warpcore_config_init,
11741 	.read_status	= bnx2x_warpcore_read_status,
11742 	.link_reset	= bnx2x_warpcore_link_reset,
11743 	.config_loopback = bnx2x_set_warpcore_loopback,
11744 	.format_fw_ver	= NULL,
11745 	.hw_reset	= bnx2x_warpcore_hw_reset,
11746 	.set_link_led	= NULL,
11747 	.phy_specific_func = NULL
11748 };
11749 
11750 
11751 static const struct bnx2x_phy phy_7101 = {
11752 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101,
11753 	.addr		= 0xff,
11754 	.def_md_devad	= 0,
11755 	.flags		= FLAGS_FAN_FAILURE_DET_REQ,
11756 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11757 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11758 	.mdio_ctrl	= 0,
11759 	.supported	= (SUPPORTED_10000baseT_Full |
11760 			   SUPPORTED_TP |
11761 			   SUPPORTED_Autoneg |
11762 			   SUPPORTED_Pause |
11763 			   SUPPORTED_Asym_Pause),
11764 	.media_type	= ETH_PHY_BASE_T,
11765 	.ver_addr	= 0,
11766 	.req_flow_ctrl	= 0,
11767 	.req_line_speed	= 0,
11768 	.speed_cap_mask	= 0,
11769 	.req_duplex	= 0,
11770 	.rsrv		= 0,
11771 	.config_init	= bnx2x_7101_config_init,
11772 	.read_status	= bnx2x_7101_read_status,
11773 	.link_reset	= bnx2x_common_ext_link_reset,
11774 	.config_loopback = bnx2x_7101_config_loopback,
11775 	.format_fw_ver	= bnx2x_7101_format_ver,
11776 	.hw_reset	= bnx2x_7101_hw_reset,
11777 	.set_link_led	= bnx2x_7101_set_link_led,
11778 	.phy_specific_func = NULL
11779 };
11780 static const struct bnx2x_phy phy_8073 = {
11781 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073,
11782 	.addr		= 0xff,
11783 	.def_md_devad	= 0,
11784 	.flags		= 0,
11785 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11786 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11787 	.mdio_ctrl	= 0,
11788 	.supported	= (SUPPORTED_10000baseT_Full |
11789 			   SUPPORTED_2500baseX_Full |
11790 			   SUPPORTED_1000baseT_Full |
11791 			   SUPPORTED_FIBRE |
11792 			   SUPPORTED_Autoneg |
11793 			   SUPPORTED_Pause |
11794 			   SUPPORTED_Asym_Pause),
11795 	.media_type	= ETH_PHY_KR,
11796 	.ver_addr	= 0,
11797 	.req_flow_ctrl	= 0,
11798 	.req_line_speed	= 0,
11799 	.speed_cap_mask	= 0,
11800 	.req_duplex	= 0,
11801 	.rsrv		= 0,
11802 	.config_init	= bnx2x_8073_config_init,
11803 	.read_status	= bnx2x_8073_read_status,
11804 	.link_reset	= bnx2x_8073_link_reset,
11805 	.config_loopback = NULL,
11806 	.format_fw_ver	= bnx2x_format_ver,
11807 	.hw_reset	= NULL,
11808 	.set_link_led	= NULL,
11809 	.phy_specific_func = bnx2x_8073_specific_func
11810 };
11811 static const struct bnx2x_phy phy_8705 = {
11812 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
11813 	.addr		= 0xff,
11814 	.def_md_devad	= 0,
11815 	.flags		= FLAGS_INIT_XGXS_FIRST,
11816 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11817 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11818 	.mdio_ctrl	= 0,
11819 	.supported	= (SUPPORTED_10000baseT_Full |
11820 			   SUPPORTED_FIBRE |
11821 			   SUPPORTED_Pause |
11822 			   SUPPORTED_Asym_Pause),
11823 	.media_type	= ETH_PHY_XFP_FIBER,
11824 	.ver_addr	= 0,
11825 	.req_flow_ctrl	= 0,
11826 	.req_line_speed	= 0,
11827 	.speed_cap_mask	= 0,
11828 	.req_duplex	= 0,
11829 	.rsrv		= 0,
11830 	.config_init	= bnx2x_8705_config_init,
11831 	.read_status	= bnx2x_8705_read_status,
11832 	.link_reset	= bnx2x_common_ext_link_reset,
11833 	.config_loopback = NULL,
11834 	.format_fw_ver	= bnx2x_null_format_ver,
11835 	.hw_reset	= NULL,
11836 	.set_link_led	= NULL,
11837 	.phy_specific_func = NULL
11838 };
11839 static const struct bnx2x_phy phy_8706 = {
11840 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706,
11841 	.addr		= 0xff,
11842 	.def_md_devad	= 0,
11843 	.flags		= FLAGS_INIT_XGXS_FIRST,
11844 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11845 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11846 	.mdio_ctrl	= 0,
11847 	.supported	= (SUPPORTED_10000baseT_Full |
11848 			   SUPPORTED_1000baseT_Full |
11849 			   SUPPORTED_FIBRE |
11850 			   SUPPORTED_Pause |
11851 			   SUPPORTED_Asym_Pause),
11852 	.media_type	= ETH_PHY_SFPP_10G_FIBER,
11853 	.ver_addr	= 0,
11854 	.req_flow_ctrl	= 0,
11855 	.req_line_speed	= 0,
11856 	.speed_cap_mask	= 0,
11857 	.req_duplex	= 0,
11858 	.rsrv		= 0,
11859 	.config_init	= bnx2x_8706_config_init,
11860 	.read_status	= bnx2x_8706_read_status,
11861 	.link_reset	= bnx2x_common_ext_link_reset,
11862 	.config_loopback = NULL,
11863 	.format_fw_ver	= bnx2x_format_ver,
11864 	.hw_reset	= NULL,
11865 	.set_link_led	= NULL,
11866 	.phy_specific_func = NULL
11867 };
11868 
11869 static const struct bnx2x_phy phy_8726 = {
11870 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726,
11871 	.addr		= 0xff,
11872 	.def_md_devad	= 0,
11873 	.flags		= (FLAGS_INIT_XGXS_FIRST |
11874 			   FLAGS_TX_ERROR_CHECK),
11875 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11876 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11877 	.mdio_ctrl	= 0,
11878 	.supported	= (SUPPORTED_10000baseT_Full |
11879 			   SUPPORTED_1000baseT_Full |
11880 			   SUPPORTED_Autoneg |
11881 			   SUPPORTED_FIBRE |
11882 			   SUPPORTED_Pause |
11883 			   SUPPORTED_Asym_Pause),
11884 	.media_type	= ETH_PHY_NOT_PRESENT,
11885 	.ver_addr	= 0,
11886 	.req_flow_ctrl	= 0,
11887 	.req_line_speed	= 0,
11888 	.speed_cap_mask	= 0,
11889 	.req_duplex	= 0,
11890 	.rsrv		= 0,
11891 	.config_init	= bnx2x_8726_config_init,
11892 	.read_status	= bnx2x_8726_read_status,
11893 	.link_reset	= bnx2x_8726_link_reset,
11894 	.config_loopback = bnx2x_8726_config_loopback,
11895 	.format_fw_ver	= bnx2x_format_ver,
11896 	.hw_reset	= NULL,
11897 	.set_link_led	= NULL,
11898 	.phy_specific_func = NULL
11899 };
11900 
11901 static const struct bnx2x_phy phy_8727 = {
11902 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727,
11903 	.addr		= 0xff,
11904 	.def_md_devad	= 0,
11905 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
11906 			   FLAGS_TX_ERROR_CHECK),
11907 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11908 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11909 	.mdio_ctrl	= 0,
11910 	.supported	= (SUPPORTED_10000baseT_Full |
11911 			   SUPPORTED_1000baseT_Full |
11912 			   SUPPORTED_FIBRE |
11913 			   SUPPORTED_Pause |
11914 			   SUPPORTED_Asym_Pause),
11915 	.media_type	= ETH_PHY_NOT_PRESENT,
11916 	.ver_addr	= 0,
11917 	.req_flow_ctrl	= 0,
11918 	.req_line_speed	= 0,
11919 	.speed_cap_mask	= 0,
11920 	.req_duplex	= 0,
11921 	.rsrv		= 0,
11922 	.config_init	= bnx2x_8727_config_init,
11923 	.read_status	= bnx2x_8727_read_status,
11924 	.link_reset	= bnx2x_8727_link_reset,
11925 	.config_loopback = NULL,
11926 	.format_fw_ver	= bnx2x_format_ver,
11927 	.hw_reset	= bnx2x_8727_hw_reset,
11928 	.set_link_led	= bnx2x_8727_set_link_led,
11929 	.phy_specific_func = bnx2x_8727_specific_func
11930 };
11931 static const struct bnx2x_phy phy_8481 = {
11932 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
11933 	.addr		= 0xff,
11934 	.def_md_devad	= 0,
11935 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11936 			  FLAGS_REARM_LATCH_SIGNAL,
11937 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11938 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11939 	.mdio_ctrl	= 0,
11940 	.supported	= (SUPPORTED_10baseT_Half |
11941 			   SUPPORTED_10baseT_Full |
11942 			   SUPPORTED_100baseT_Half |
11943 			   SUPPORTED_100baseT_Full |
11944 			   SUPPORTED_1000baseT_Full |
11945 			   SUPPORTED_10000baseT_Full |
11946 			   SUPPORTED_TP |
11947 			   SUPPORTED_Autoneg |
11948 			   SUPPORTED_Pause |
11949 			   SUPPORTED_Asym_Pause),
11950 	.media_type	= ETH_PHY_BASE_T,
11951 	.ver_addr	= 0,
11952 	.req_flow_ctrl	= 0,
11953 	.req_line_speed	= 0,
11954 	.speed_cap_mask	= 0,
11955 	.req_duplex	= 0,
11956 	.rsrv		= 0,
11957 	.config_init	= bnx2x_8481_config_init,
11958 	.read_status	= bnx2x_848xx_read_status,
11959 	.link_reset	= bnx2x_8481_link_reset,
11960 	.config_loopback = NULL,
11961 	.format_fw_ver	= bnx2x_848xx_format_ver,
11962 	.hw_reset	= bnx2x_8481_hw_reset,
11963 	.set_link_led	= bnx2x_848xx_set_link_led,
11964 	.phy_specific_func = NULL
11965 };
11966 
11967 static const struct bnx2x_phy phy_84823 = {
11968 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823,
11969 	.addr		= 0xff,
11970 	.def_md_devad	= 0,
11971 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
11972 			   FLAGS_REARM_LATCH_SIGNAL |
11973 			   FLAGS_TX_ERROR_CHECK),
11974 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11975 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11976 	.mdio_ctrl	= 0,
11977 	.supported	= (SUPPORTED_10baseT_Half |
11978 			   SUPPORTED_10baseT_Full |
11979 			   SUPPORTED_100baseT_Half |
11980 			   SUPPORTED_100baseT_Full |
11981 			   SUPPORTED_1000baseT_Full |
11982 			   SUPPORTED_10000baseT_Full |
11983 			   SUPPORTED_TP |
11984 			   SUPPORTED_Autoneg |
11985 			   SUPPORTED_Pause |
11986 			   SUPPORTED_Asym_Pause),
11987 	.media_type	= ETH_PHY_BASE_T,
11988 	.ver_addr	= 0,
11989 	.req_flow_ctrl	= 0,
11990 	.req_line_speed	= 0,
11991 	.speed_cap_mask	= 0,
11992 	.req_duplex	= 0,
11993 	.rsrv		= 0,
11994 	.config_init	= bnx2x_848x3_config_init,
11995 	.read_status	= bnx2x_848xx_read_status,
11996 	.link_reset	= bnx2x_848x3_link_reset,
11997 	.config_loopback = NULL,
11998 	.format_fw_ver	= bnx2x_848xx_format_ver,
11999 	.hw_reset	= NULL,
12000 	.set_link_led	= bnx2x_848xx_set_link_led,
12001 	.phy_specific_func = bnx2x_848xx_specific_func
12002 };
12003 
12004 static const struct bnx2x_phy phy_84833 = {
12005 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833,
12006 	.addr		= 0xff,
12007 	.def_md_devad	= 0,
12008 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
12009 			   FLAGS_REARM_LATCH_SIGNAL |
12010 			   FLAGS_TX_ERROR_CHECK),
12011 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12012 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12013 	.mdio_ctrl	= 0,
12014 	.supported	= (SUPPORTED_100baseT_Half |
12015 			   SUPPORTED_100baseT_Full |
12016 			   SUPPORTED_1000baseT_Full |
12017 			   SUPPORTED_10000baseT_Full |
12018 			   SUPPORTED_TP |
12019 			   SUPPORTED_Autoneg |
12020 			   SUPPORTED_Pause |
12021 			   SUPPORTED_Asym_Pause),
12022 	.media_type	= ETH_PHY_BASE_T,
12023 	.ver_addr	= 0,
12024 	.req_flow_ctrl	= 0,
12025 	.req_line_speed	= 0,
12026 	.speed_cap_mask	= 0,
12027 	.req_duplex	= 0,
12028 	.rsrv		= 0,
12029 	.config_init	= bnx2x_848x3_config_init,
12030 	.read_status	= bnx2x_848xx_read_status,
12031 	.link_reset	= bnx2x_848x3_link_reset,
12032 	.config_loopback = NULL,
12033 	.format_fw_ver	= bnx2x_848xx_format_ver,
12034 	.hw_reset	= bnx2x_84833_hw_reset_phy,
12035 	.set_link_led	= bnx2x_848xx_set_link_led,
12036 	.phy_specific_func = bnx2x_848xx_specific_func
12037 };
12038 
12039 static const struct bnx2x_phy phy_84834 = {
12040 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834,
12041 	.addr		= 0xff,
12042 	.def_md_devad	= 0,
12043 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
12044 			    FLAGS_REARM_LATCH_SIGNAL,
12045 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12046 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12047 	.mdio_ctrl	= 0,
12048 	.supported	= (SUPPORTED_100baseT_Half |
12049 			   SUPPORTED_100baseT_Full |
12050 			   SUPPORTED_1000baseT_Full |
12051 			   SUPPORTED_10000baseT_Full |
12052 			   SUPPORTED_TP |
12053 			   SUPPORTED_Autoneg |
12054 			   SUPPORTED_Pause |
12055 			   SUPPORTED_Asym_Pause),
12056 	.media_type	= ETH_PHY_BASE_T,
12057 	.ver_addr	= 0,
12058 	.req_flow_ctrl	= 0,
12059 	.req_line_speed	= 0,
12060 	.speed_cap_mask	= 0,
12061 	.req_duplex	= 0,
12062 	.rsrv		= 0,
12063 	.config_init	= bnx2x_848x3_config_init,
12064 	.read_status	= bnx2x_848xx_read_status,
12065 	.link_reset	= bnx2x_848x3_link_reset,
12066 	.config_loopback = NULL,
12067 	.format_fw_ver	= bnx2x_848xx_format_ver,
12068 	.hw_reset	= bnx2x_84833_hw_reset_phy,
12069 	.set_link_led	= bnx2x_848xx_set_link_led,
12070 	.phy_specific_func = bnx2x_848xx_specific_func
12071 };
12072 
12073 static const struct bnx2x_phy phy_84858 = {
12074 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858,
12075 	.addr		= 0xff,
12076 	.def_md_devad	= 0,
12077 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
12078 			    FLAGS_REARM_LATCH_SIGNAL,
12079 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12080 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12081 	.mdio_ctrl	= 0,
12082 	.supported	= (SUPPORTED_100baseT_Half |
12083 			   SUPPORTED_100baseT_Full |
12084 			   SUPPORTED_1000baseT_Full |
12085 			   SUPPORTED_10000baseT_Full |
12086 			   SUPPORTED_TP |
12087 			   SUPPORTED_Autoneg |
12088 			   SUPPORTED_Pause |
12089 			   SUPPORTED_Asym_Pause),
12090 	.media_type	= ETH_PHY_BASE_T,
12091 	.ver_addr	= 0,
12092 	.req_flow_ctrl	= 0,
12093 	.req_line_speed	= 0,
12094 	.speed_cap_mask	= 0,
12095 	.req_duplex	= 0,
12096 	.rsrv		= 0,
12097 	.config_init	= bnx2x_848x3_config_init,
12098 	.read_status	= bnx2x_848xx_read_status,
12099 	.link_reset	= bnx2x_848x3_link_reset,
12100 	.config_loopback = NULL,
12101 	.format_fw_ver	= bnx2x_8485x_format_ver,
12102 	.hw_reset	= bnx2x_84833_hw_reset_phy,
12103 	.set_link_led	= bnx2x_848xx_set_link_led,
12104 	.phy_specific_func = bnx2x_848xx_specific_func
12105 };
12106 
12107 static const struct bnx2x_phy phy_54618se = {
12108 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE,
12109 	.addr		= 0xff,
12110 	.def_md_devad	= 0,
12111 	.flags		= FLAGS_INIT_XGXS_FIRST,
12112 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12113 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
12114 	.mdio_ctrl	= 0,
12115 	.supported	= (SUPPORTED_10baseT_Half |
12116 			   SUPPORTED_10baseT_Full |
12117 			   SUPPORTED_100baseT_Half |
12118 			   SUPPORTED_100baseT_Full |
12119 			   SUPPORTED_1000baseT_Full |
12120 			   SUPPORTED_TP |
12121 			   SUPPORTED_Autoneg |
12122 			   SUPPORTED_Pause |
12123 			   SUPPORTED_Asym_Pause),
12124 	.media_type	= ETH_PHY_BASE_T,
12125 	.ver_addr	= 0,
12126 	.req_flow_ctrl	= 0,
12127 	.req_line_speed	= 0,
12128 	.speed_cap_mask	= 0,
12129 	/* req_duplex = */0,
12130 	/* rsrv = */0,
12131 	.config_init	= bnx2x_54618se_config_init,
12132 	.read_status	= bnx2x_54618se_read_status,
12133 	.link_reset	= bnx2x_54618se_link_reset,
12134 	.config_loopback = bnx2x_54618se_config_loopback,
12135 	.format_fw_ver	= NULL,
12136 	.hw_reset	= NULL,
12137 	.set_link_led	= bnx2x_5461x_set_link_led,
12138 	.phy_specific_func = bnx2x_54618se_specific_func
12139 };
12140 /*****************************************************************/
12141 /*                                                               */
12142 /* Populate the phy according. Main function: bnx2x_populate_phy   */
12143 /*                                                               */
12144 /*****************************************************************/
12145 
bnx2x_populate_preemphasis(struct bnx2x * bp,u32 shmem_base,struct bnx2x_phy * phy,u8 port,u8 phy_index)12146 static void bnx2x_populate_preemphasis(struct bnx2x *bp, u32 shmem_base,
12147 				     struct bnx2x_phy *phy, u8 port,
12148 				     u8 phy_index)
12149 {
12150 	/* Get the 4 lanes xgxs config rx and tx */
12151 	u32 rx = 0, tx = 0, i;
12152 	for (i = 0; i < 2; i++) {
12153 		/* INT_PHY and EXT_PHY1 share the same value location in
12154 		 * the shmem. When num_phys is greater than 1, than this value
12155 		 * applies only to EXT_PHY1
12156 		 */
12157 		if (phy_index == INT_PHY || phy_index == EXT_PHY1) {
12158 			rx = REG_RD(bp, shmem_base +
12159 				    offsetof(struct shmem_region,
12160 			  dev_info.port_hw_config[port].xgxs_config_rx[i<<1]));
12161 
12162 			tx = REG_RD(bp, shmem_base +
12163 				    offsetof(struct shmem_region,
12164 			  dev_info.port_hw_config[port].xgxs_config_tx[i<<1]));
12165 		} else {
12166 			rx = REG_RD(bp, shmem_base +
12167 				    offsetof(struct shmem_region,
12168 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
12169 
12170 			tx = REG_RD(bp, shmem_base +
12171 				    offsetof(struct shmem_region,
12172 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
12173 		}
12174 
12175 		phy->rx_preemphasis[i << 1] = ((rx>>16) & 0xffff);
12176 		phy->rx_preemphasis[(i << 1) + 1] = (rx & 0xffff);
12177 
12178 		phy->tx_preemphasis[i << 1] = ((tx>>16) & 0xffff);
12179 		phy->tx_preemphasis[(i << 1) + 1] = (tx & 0xffff);
12180 	}
12181 }
12182 
bnx2x_get_ext_phy_config(struct bnx2x * bp,u32 shmem_base,u8 phy_index,u8 port)12183 static u32 bnx2x_get_ext_phy_config(struct bnx2x *bp, u32 shmem_base,
12184 				    u8 phy_index, u8 port)
12185 {
12186 	u32 ext_phy_config = 0;
12187 	switch (phy_index) {
12188 	case EXT_PHY1:
12189 		ext_phy_config = REG_RD(bp, shmem_base +
12190 					      offsetof(struct shmem_region,
12191 			dev_info.port_hw_config[port].external_phy_config));
12192 		break;
12193 	case EXT_PHY2:
12194 		ext_phy_config = REG_RD(bp, shmem_base +
12195 					      offsetof(struct shmem_region,
12196 			dev_info.port_hw_config[port].external_phy_config2));
12197 		break;
12198 	default:
12199 		DP(NETIF_MSG_LINK, "Invalid phy_index %d\n", phy_index);
12200 		return -EINVAL;
12201 	}
12202 
12203 	return ext_phy_config;
12204 }
bnx2x_populate_int_phy(struct bnx2x * bp,u32 shmem_base,u8 port,struct bnx2x_phy * phy)12205 static int bnx2x_populate_int_phy(struct bnx2x *bp, u32 shmem_base, u8 port,
12206 				  struct bnx2x_phy *phy)
12207 {
12208 	u32 phy_addr;
12209 	u32 chip_id;
12210 	u32 switch_cfg = (REG_RD(bp, shmem_base +
12211 				       offsetof(struct shmem_region,
12212 			dev_info.port_feature_config[port].link_config)) &
12213 			  PORT_FEATURE_CONNECTED_SWITCH_MASK);
12214 	chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
12215 		((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
12216 
12217 	DP(NETIF_MSG_LINK, ":chip_id = 0x%x\n", chip_id);
12218 	if (USES_WARPCORE(bp)) {
12219 		u32 serdes_net_if;
12220 		phy_addr = REG_RD(bp,
12221 				  MISC_REG_WC0_CTRL_PHY_ADDR);
12222 		*phy = phy_warpcore;
12223 		if (REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR) == 0x3)
12224 			phy->flags |= FLAGS_4_PORT_MODE;
12225 		else
12226 			phy->flags &= ~FLAGS_4_PORT_MODE;
12227 			/* Check Dual mode */
12228 		serdes_net_if = (REG_RD(bp, shmem_base +
12229 					offsetof(struct shmem_region, dev_info.
12230 					port_hw_config[port].default_cfg)) &
12231 				 PORT_HW_CFG_NET_SERDES_IF_MASK);
12232 		/* Set the appropriate supported and flags indications per
12233 		 * interface type of the chip
12234 		 */
12235 		switch (serdes_net_if) {
12236 		case PORT_HW_CFG_NET_SERDES_IF_SGMII:
12237 			phy->supported &= (SUPPORTED_10baseT_Half |
12238 					   SUPPORTED_10baseT_Full |
12239 					   SUPPORTED_100baseT_Half |
12240 					   SUPPORTED_100baseT_Full |
12241 					   SUPPORTED_1000baseT_Full |
12242 					   SUPPORTED_FIBRE |
12243 					   SUPPORTED_Autoneg |
12244 					   SUPPORTED_Pause |
12245 					   SUPPORTED_Asym_Pause);
12246 			phy->media_type = ETH_PHY_BASE_T;
12247 			break;
12248 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
12249 			phy->supported &= (SUPPORTED_1000baseT_Full |
12250 					   SUPPORTED_10000baseT_Full |
12251 					   SUPPORTED_FIBRE |
12252 					   SUPPORTED_Pause |
12253 					   SUPPORTED_Asym_Pause);
12254 			phy->media_type = ETH_PHY_XFP_FIBER;
12255 			break;
12256 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
12257 			phy->supported &= (SUPPORTED_1000baseT_Full |
12258 					   SUPPORTED_10000baseT_Full |
12259 					   SUPPORTED_FIBRE |
12260 					   SUPPORTED_Pause |
12261 					   SUPPORTED_Asym_Pause);
12262 			phy->media_type = ETH_PHY_SFPP_10G_FIBER;
12263 			break;
12264 		case PORT_HW_CFG_NET_SERDES_IF_KR:
12265 			phy->media_type = ETH_PHY_KR;
12266 			phy->supported &= (SUPPORTED_1000baseKX_Full |
12267 					   SUPPORTED_10000baseKR_Full |
12268 					   SUPPORTED_FIBRE |
12269 					   SUPPORTED_Autoneg |
12270 					   SUPPORTED_Pause |
12271 					   SUPPORTED_Asym_Pause);
12272 			break;
12273 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
12274 			phy->media_type = ETH_PHY_KR;
12275 			phy->flags |= FLAGS_WC_DUAL_MODE;
12276 			phy->supported &= (SUPPORTED_20000baseMLD2_Full |
12277 					   SUPPORTED_FIBRE |
12278 					   SUPPORTED_Pause |
12279 					   SUPPORTED_Asym_Pause);
12280 			break;
12281 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
12282 			phy->media_type = ETH_PHY_KR;
12283 			phy->flags |= FLAGS_WC_DUAL_MODE;
12284 			phy->supported &= (SUPPORTED_20000baseKR2_Full |
12285 					   SUPPORTED_10000baseKR_Full |
12286 					   SUPPORTED_1000baseKX_Full |
12287 					   SUPPORTED_Autoneg |
12288 					   SUPPORTED_FIBRE |
12289 					   SUPPORTED_Pause |
12290 					   SUPPORTED_Asym_Pause);
12291 			phy->flags &= ~FLAGS_TX_ERROR_CHECK;
12292 			break;
12293 		default:
12294 			DP(NETIF_MSG_LINK, "Unknown WC interface type 0x%x\n",
12295 				       serdes_net_if);
12296 			break;
12297 		}
12298 
12299 		/* Enable MDC/MDIO work-around for E3 A0 since free running MDC
12300 		 * was not set as expected. For B0, ECO will be enabled so there
12301 		 * won't be an issue there
12302 		 */
12303 		if (CHIP_REV(bp) == CHIP_REV_Ax)
12304 			phy->flags |= FLAGS_MDC_MDIO_WA;
12305 		else
12306 			phy->flags |= FLAGS_MDC_MDIO_WA_B0;
12307 	} else {
12308 		switch (switch_cfg) {
12309 		case SWITCH_CFG_1G:
12310 			phy_addr = REG_RD(bp,
12311 					  NIG_REG_SERDES0_CTRL_PHY_ADDR +
12312 					  port * 0x10);
12313 			*phy = phy_serdes;
12314 			break;
12315 		case SWITCH_CFG_10G:
12316 			phy_addr = REG_RD(bp,
12317 					  NIG_REG_XGXS0_CTRL_PHY_ADDR +
12318 					  port * 0x18);
12319 			*phy = phy_xgxs;
12320 			break;
12321 		default:
12322 			DP(NETIF_MSG_LINK, "Invalid switch_cfg\n");
12323 			return -EINVAL;
12324 		}
12325 	}
12326 	phy->addr = (u8)phy_addr;
12327 	phy->mdio_ctrl = bnx2x_get_emac_base(bp,
12328 					    SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH,
12329 					    port);
12330 	if (CHIP_IS_E2(bp))
12331 		phy->def_md_devad = E2_DEFAULT_PHY_DEV_ADDR;
12332 	else
12333 		phy->def_md_devad = DEFAULT_PHY_DEV_ADDR;
12334 
12335 	DP(NETIF_MSG_LINK, "Internal phy port=%d, addr=0x%x, mdio_ctl=0x%x\n",
12336 		   port, phy->addr, phy->mdio_ctrl);
12337 
12338 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, INT_PHY);
12339 	return 0;
12340 }
12341 
bnx2x_populate_ext_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)12342 static int bnx2x_populate_ext_phy(struct bnx2x *bp,
12343 				  u8 phy_index,
12344 				  u32 shmem_base,
12345 				  u32 shmem2_base,
12346 				  u8 port,
12347 				  struct bnx2x_phy *phy)
12348 {
12349 	u32 ext_phy_config, phy_type, config2;
12350 	u32 mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH;
12351 	ext_phy_config = bnx2x_get_ext_phy_config(bp, shmem_base,
12352 						  phy_index, port);
12353 	phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
12354 	/* Select the phy type */
12355 	switch (phy_type) {
12356 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
12357 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED;
12358 		*phy = phy_8073;
12359 		break;
12360 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
12361 		*phy = phy_8705;
12362 		break;
12363 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
12364 		*phy = phy_8706;
12365 		break;
12366 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
12367 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
12368 		*phy = phy_8726;
12369 		break;
12370 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
12371 		/* BCM8727_NOC => BCM8727 no over current */
12372 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
12373 		*phy = phy_8727;
12374 		phy->flags |= FLAGS_NOC;
12375 		break;
12376 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
12377 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
12378 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
12379 		*phy = phy_8727;
12380 		break;
12381 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
12382 		*phy = phy_8481;
12383 		break;
12384 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823:
12385 		*phy = phy_84823;
12386 		break;
12387 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
12388 		*phy = phy_84833;
12389 		break;
12390 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
12391 		*phy = phy_84834;
12392 		break;
12393 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858:
12394 		*phy = phy_84858;
12395 		break;
12396 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616:
12397 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
12398 		*phy = phy_54618se;
12399 		if (phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
12400 			phy->flags |= FLAGS_EEE;
12401 		break;
12402 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
12403 		*phy = phy_7101;
12404 		break;
12405 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
12406 		*phy = phy_null;
12407 		return -EINVAL;
12408 	default:
12409 		*phy = phy_null;
12410 		/* In case external PHY wasn't found */
12411 		if ((phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
12412 		    (phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
12413 			return -EINVAL;
12414 		return 0;
12415 	}
12416 
12417 	phy->addr = XGXS_EXT_PHY_ADDR(ext_phy_config);
12418 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, phy_index);
12419 
12420 	/* The shmem address of the phy version is located on different
12421 	 * structures. In case this structure is too old, do not set
12422 	 * the address
12423 	 */
12424 	config2 = REG_RD(bp, shmem_base + offsetof(struct shmem_region,
12425 					dev_info.shared_hw_config.config2));
12426 	if (phy_index == EXT_PHY1) {
12427 		phy->ver_addr = shmem_base + offsetof(struct shmem_region,
12428 				port_mb[port].ext_phy_fw_version);
12429 
12430 		/* Check specific mdc mdio settings */
12431 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK)
12432 			mdc_mdio_access = config2 &
12433 			SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK;
12434 	} else {
12435 		u32 size = REG_RD(bp, shmem2_base);
12436 
12437 		if (size >
12438 		    offsetof(struct shmem2_region, ext_phy_fw_version2)) {
12439 			phy->ver_addr = shmem2_base +
12440 			    offsetof(struct shmem2_region,
12441 				     ext_phy_fw_version2[port]);
12442 		}
12443 		/* Check specific mdc mdio settings */
12444 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK)
12445 			mdc_mdio_access = (config2 &
12446 			SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK) >>
12447 			(SHARED_HW_CFG_MDC_MDIO_ACCESS2_SHIFT -
12448 			 SHARED_HW_CFG_MDC_MDIO_ACCESS1_SHIFT);
12449 	}
12450 	phy->mdio_ctrl = bnx2x_get_emac_base(bp, mdc_mdio_access, port);
12451 
12452 	if (bnx2x_is_8483x_8485x(phy) && (phy->ver_addr)) {
12453 		/* Remove 100Mb link supported for BCM84833/4 when phy fw
12454 		 * version lower than or equal to 1.39
12455 		 */
12456 		u32 raw_ver = REG_RD(bp, phy->ver_addr);
12457 		if (((raw_ver & 0x7F) <= 39) &&
12458 		    (((raw_ver & 0xF80) >> 7) <= 1))
12459 			phy->supported &= ~(SUPPORTED_100baseT_Half |
12460 					    SUPPORTED_100baseT_Full);
12461 	}
12462 
12463 	DP(NETIF_MSG_LINK, "phy_type 0x%x port %d found in index %d\n",
12464 		   phy_type, port, phy_index);
12465 	DP(NETIF_MSG_LINK, "             addr=0x%x, mdio_ctl=0x%x\n",
12466 		   phy->addr, phy->mdio_ctrl);
12467 	return 0;
12468 }
12469 
bnx2x_populate_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)12470 static int bnx2x_populate_phy(struct bnx2x *bp, u8 phy_index, u32 shmem_base,
12471 			      u32 shmem2_base, u8 port, struct bnx2x_phy *phy)
12472 {
12473 	phy->type = PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN;
12474 	if (phy_index == INT_PHY)
12475 		return bnx2x_populate_int_phy(bp, shmem_base, port, phy);
12476 
12477 	return bnx2x_populate_ext_phy(bp, phy_index, shmem_base, shmem2_base,
12478 					port, phy);
12479 }
12480 
bnx2x_phy_def_cfg(struct link_params * params,struct bnx2x_phy * phy,u8 phy_index)12481 static void bnx2x_phy_def_cfg(struct link_params *params,
12482 			      struct bnx2x_phy *phy,
12483 			      u8 phy_index)
12484 {
12485 	struct bnx2x *bp = params->bp;
12486 	u32 link_config;
12487 	/* Populate the default phy configuration for MF mode */
12488 	if (phy_index == EXT_PHY2) {
12489 		link_config = REG_RD(bp, params->shmem_base +
12490 				     offsetof(struct shmem_region, dev_info.
12491 			port_feature_config[params->port].link_config2));
12492 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
12493 					     offsetof(struct shmem_region,
12494 						      dev_info.
12495 			port_hw_config[params->port].speed_capability_mask2));
12496 	} else {
12497 		link_config = REG_RD(bp, params->shmem_base +
12498 				     offsetof(struct shmem_region, dev_info.
12499 				port_feature_config[params->port].link_config));
12500 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
12501 					     offsetof(struct shmem_region,
12502 						      dev_info.
12503 			port_hw_config[params->port].speed_capability_mask));
12504 	}
12505 	DP(NETIF_MSG_LINK,
12506 	   "Default config phy idx %x cfg 0x%x speed_cap_mask 0x%x\n",
12507 	   phy_index, link_config, phy->speed_cap_mask);
12508 
12509 	phy->req_duplex = DUPLEX_FULL;
12510 	switch (link_config  & PORT_FEATURE_LINK_SPEED_MASK) {
12511 	case PORT_FEATURE_LINK_SPEED_10M_HALF:
12512 		phy->req_duplex = DUPLEX_HALF;
12513 		fallthrough;
12514 	case PORT_FEATURE_LINK_SPEED_10M_FULL:
12515 		phy->req_line_speed = SPEED_10;
12516 		break;
12517 	case PORT_FEATURE_LINK_SPEED_100M_HALF:
12518 		phy->req_duplex = DUPLEX_HALF;
12519 		fallthrough;
12520 	case PORT_FEATURE_LINK_SPEED_100M_FULL:
12521 		phy->req_line_speed = SPEED_100;
12522 		break;
12523 	case PORT_FEATURE_LINK_SPEED_1G:
12524 		phy->req_line_speed = SPEED_1000;
12525 		break;
12526 	case PORT_FEATURE_LINK_SPEED_2_5G:
12527 		phy->req_line_speed = SPEED_2500;
12528 		break;
12529 	case PORT_FEATURE_LINK_SPEED_10G_CX4:
12530 		phy->req_line_speed = SPEED_10000;
12531 		break;
12532 	default:
12533 		phy->req_line_speed = SPEED_AUTO_NEG;
12534 		break;
12535 	}
12536 
12537 	switch (link_config  & PORT_FEATURE_FLOW_CONTROL_MASK) {
12538 	case PORT_FEATURE_FLOW_CONTROL_AUTO:
12539 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_AUTO;
12540 		break;
12541 	case PORT_FEATURE_FLOW_CONTROL_TX:
12542 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_TX;
12543 		break;
12544 	case PORT_FEATURE_FLOW_CONTROL_RX:
12545 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_RX;
12546 		break;
12547 	case PORT_FEATURE_FLOW_CONTROL_BOTH:
12548 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
12549 		break;
12550 	default:
12551 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12552 		break;
12553 	}
12554 }
12555 
bnx2x_phy_selection(struct link_params * params)12556 u32 bnx2x_phy_selection(struct link_params *params)
12557 {
12558 	u32 phy_config_swapped, prio_cfg;
12559 	u32 return_cfg = PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT;
12560 
12561 	phy_config_swapped = params->multi_phy_config &
12562 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
12563 
12564 	prio_cfg = params->multi_phy_config &
12565 			PORT_HW_CFG_PHY_SELECTION_MASK;
12566 
12567 	if (phy_config_swapped) {
12568 		switch (prio_cfg) {
12569 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
12570 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY;
12571 		     break;
12572 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
12573 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY;
12574 		     break;
12575 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
12576 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
12577 		     break;
12578 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
12579 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
12580 		     break;
12581 		}
12582 	} else
12583 		return_cfg = prio_cfg;
12584 
12585 	return return_cfg;
12586 }
12587 
bnx2x_phy_probe(struct link_params * params)12588 int bnx2x_phy_probe(struct link_params *params)
12589 {
12590 	u8 phy_index, actual_phy_idx;
12591 	u32 phy_config_swapped, sync_offset, media_types;
12592 	struct bnx2x *bp = params->bp;
12593 	struct bnx2x_phy *phy;
12594 	params->num_phys = 0;
12595 	DP(NETIF_MSG_LINK, "Begin phy probe\n");
12596 	phy_config_swapped = params->multi_phy_config &
12597 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
12598 
12599 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
12600 	      phy_index++) {
12601 		actual_phy_idx = phy_index;
12602 		if (phy_config_swapped) {
12603 			if (phy_index == EXT_PHY1)
12604 				actual_phy_idx = EXT_PHY2;
12605 			else if (phy_index == EXT_PHY2)
12606 				actual_phy_idx = EXT_PHY1;
12607 		}
12608 		DP(NETIF_MSG_LINK, "phy_config_swapped %x, phy_index %x,"
12609 			       " actual_phy_idx %x\n", phy_config_swapped,
12610 			   phy_index, actual_phy_idx);
12611 		phy = &params->phy[actual_phy_idx];
12612 		if (bnx2x_populate_phy(bp, phy_index, params->shmem_base,
12613 				       params->shmem2_base, params->port,
12614 				       phy) != 0) {
12615 			params->num_phys = 0;
12616 			DP(NETIF_MSG_LINK, "phy probe failed in phy index %d\n",
12617 				   phy_index);
12618 			for (phy_index = INT_PHY;
12619 			      phy_index < MAX_PHYS;
12620 			      phy_index++)
12621 				*phy = phy_null;
12622 			return -EINVAL;
12623 		}
12624 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)
12625 			break;
12626 
12627 		if (params->feature_config_flags &
12628 		    FEATURE_CONFIG_DISABLE_REMOTE_FAULT_DET)
12629 			phy->flags &= ~FLAGS_TX_ERROR_CHECK;
12630 
12631 		if (!(params->feature_config_flags &
12632 		      FEATURE_CONFIG_MT_SUPPORT))
12633 			phy->flags |= FLAGS_MDC_MDIO_WA_G;
12634 
12635 		sync_offset = params->shmem_base +
12636 			offsetof(struct shmem_region,
12637 			dev_info.port_hw_config[params->port].media_type);
12638 		media_types = REG_RD(bp, sync_offset);
12639 
12640 		/* Update media type for non-PMF sync only for the first time
12641 		 * In case the media type changes afterwards, it will be updated
12642 		 * using the update_status function
12643 		 */
12644 		if ((media_types & (PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
12645 				    (PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
12646 				     actual_phy_idx))) == 0) {
12647 			media_types |= ((phy->media_type &
12648 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
12649 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
12650 				 actual_phy_idx));
12651 		}
12652 		REG_WR(bp, sync_offset, media_types);
12653 
12654 		bnx2x_phy_def_cfg(params, phy, phy_index);
12655 		params->num_phys++;
12656 	}
12657 
12658 	DP(NETIF_MSG_LINK, "End phy probe. #phys found %x\n", params->num_phys);
12659 	return 0;
12660 }
12661 
bnx2x_init_bmac_loopback(struct link_params * params,struct link_vars * vars)12662 static void bnx2x_init_bmac_loopback(struct link_params *params,
12663 				     struct link_vars *vars)
12664 {
12665 	struct bnx2x *bp = params->bp;
12666 	vars->link_up = 1;
12667 	vars->line_speed = SPEED_10000;
12668 	vars->duplex = DUPLEX_FULL;
12669 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12670 	vars->mac_type = MAC_TYPE_BMAC;
12671 
12672 	vars->phy_flags = PHY_XGXS_FLAG;
12673 
12674 	bnx2x_xgxs_deassert(params);
12675 
12676 	/* Set bmac loopback */
12677 	bnx2x_bmac_enable(params, vars, 1, 1);
12678 
12679 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port * 4, 0);
12680 }
12681 
bnx2x_init_emac_loopback(struct link_params * params,struct link_vars * vars)12682 static void bnx2x_init_emac_loopback(struct link_params *params,
12683 				     struct link_vars *vars)
12684 {
12685 	struct bnx2x *bp = params->bp;
12686 	vars->link_up = 1;
12687 	vars->line_speed = SPEED_1000;
12688 	vars->duplex = DUPLEX_FULL;
12689 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12690 	vars->mac_type = MAC_TYPE_EMAC;
12691 
12692 	vars->phy_flags = PHY_XGXS_FLAG;
12693 
12694 	bnx2x_xgxs_deassert(params);
12695 	/* Set bmac loopback */
12696 	bnx2x_emac_enable(params, vars, 1);
12697 	bnx2x_emac_program(params, vars);
12698 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port * 4, 0);
12699 }
12700 
bnx2x_init_xmac_loopback(struct link_params * params,struct link_vars * vars)12701 static void bnx2x_init_xmac_loopback(struct link_params *params,
12702 				     struct link_vars *vars)
12703 {
12704 	struct bnx2x *bp = params->bp;
12705 	vars->link_up = 1;
12706 	if (!params->req_line_speed[0])
12707 		vars->line_speed = SPEED_10000;
12708 	else
12709 		vars->line_speed = params->req_line_speed[0];
12710 	vars->duplex = DUPLEX_FULL;
12711 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12712 	vars->mac_type = MAC_TYPE_XMAC;
12713 	vars->phy_flags = PHY_XGXS_FLAG;
12714 	/* Set WC to loopback mode since link is required to provide clock
12715 	 * to the XMAC in 20G mode
12716 	 */
12717 	bnx2x_set_aer_mmd(params, &params->phy[0]);
12718 	bnx2x_warpcore_reset_lane(bp, &params->phy[0], 0);
12719 	params->phy[INT_PHY].config_loopback(
12720 			&params->phy[INT_PHY],
12721 			params);
12722 
12723 	bnx2x_xmac_enable(params, vars, 1);
12724 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12725 }
12726 
bnx2x_init_umac_loopback(struct link_params * params,struct link_vars * vars)12727 static void bnx2x_init_umac_loopback(struct link_params *params,
12728 				     struct link_vars *vars)
12729 {
12730 	struct bnx2x *bp = params->bp;
12731 	vars->link_up = 1;
12732 	vars->line_speed = SPEED_1000;
12733 	vars->duplex = DUPLEX_FULL;
12734 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12735 	vars->mac_type = MAC_TYPE_UMAC;
12736 	vars->phy_flags = PHY_XGXS_FLAG;
12737 	bnx2x_umac_enable(params, vars, 1);
12738 
12739 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12740 }
12741 
bnx2x_init_xgxs_loopback(struct link_params * params,struct link_vars * vars)12742 static void bnx2x_init_xgxs_loopback(struct link_params *params,
12743 				     struct link_vars *vars)
12744 {
12745 	struct bnx2x *bp = params->bp;
12746 	struct bnx2x_phy *int_phy = &params->phy[INT_PHY];
12747 	vars->link_up = 1;
12748 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12749 	vars->duplex = DUPLEX_FULL;
12750 	if (params->req_line_speed[0] == SPEED_1000)
12751 		vars->line_speed = SPEED_1000;
12752 	else if ((params->req_line_speed[0] == SPEED_20000) ||
12753 		 (int_phy->flags & FLAGS_WC_DUAL_MODE))
12754 		vars->line_speed = SPEED_20000;
12755 	else
12756 		vars->line_speed = SPEED_10000;
12757 
12758 	if (!USES_WARPCORE(bp))
12759 		bnx2x_xgxs_deassert(params);
12760 	bnx2x_link_initialize(params, vars);
12761 
12762 	if (params->req_line_speed[0] == SPEED_1000) {
12763 		if (USES_WARPCORE(bp))
12764 			bnx2x_umac_enable(params, vars, 0);
12765 		else {
12766 			bnx2x_emac_program(params, vars);
12767 			bnx2x_emac_enable(params, vars, 0);
12768 		}
12769 	} else {
12770 		if (USES_WARPCORE(bp))
12771 			bnx2x_xmac_enable(params, vars, 0);
12772 		else
12773 			bnx2x_bmac_enable(params, vars, 0, 1);
12774 	}
12775 
12776 	if (params->loopback_mode == LOOPBACK_XGXS) {
12777 		/* Set 10G XGXS loopback */
12778 		int_phy->config_loopback(int_phy, params);
12779 	} else {
12780 		/* Set external phy loopback */
12781 		u8 phy_index;
12782 		for (phy_index = EXT_PHY1;
12783 		      phy_index < params->num_phys; phy_index++)
12784 			if (params->phy[phy_index].config_loopback)
12785 				params->phy[phy_index].config_loopback(
12786 					&params->phy[phy_index],
12787 					params);
12788 	}
12789 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12790 
12791 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
12792 }
12793 
bnx2x_set_rx_filter(struct link_params * params,u8 en)12794 void bnx2x_set_rx_filter(struct link_params *params, u8 en)
12795 {
12796 	struct bnx2x *bp = params->bp;
12797 	u8 val = en * 0x1F;
12798 
12799 	/* Open / close the gate between the NIG and the BRB */
12800 	if (!CHIP_IS_E1x(bp))
12801 		val |= en * 0x20;
12802 	REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + params->port*4, val);
12803 
12804 	if (!CHIP_IS_E1(bp)) {
12805 		REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + params->port*4,
12806 		       en*0x3);
12807 	}
12808 
12809 	REG_WR(bp, (params->port ? NIG_REG_LLH1_BRB1_NOT_MCP :
12810 		    NIG_REG_LLH0_BRB1_NOT_MCP), en);
12811 }
bnx2x_avoid_link_flap(struct link_params * params,struct link_vars * vars)12812 static int bnx2x_avoid_link_flap(struct link_params *params,
12813 					    struct link_vars *vars)
12814 {
12815 	u32 phy_idx;
12816 	u32 dont_clear_stat, lfa_sts;
12817 	struct bnx2x *bp = params->bp;
12818 
12819 	bnx2x_set_mdio_emac_per_phy(bp, params);
12820 	/* Sync the link parameters */
12821 	bnx2x_link_status_update(params, vars);
12822 
12823 	/*
12824 	 * The module verification was already done by previous link owner,
12825 	 * so this call is meant only to get warning message
12826 	 */
12827 
12828 	for (phy_idx = INT_PHY; phy_idx < params->num_phys; phy_idx++) {
12829 		struct bnx2x_phy *phy = &params->phy[phy_idx];
12830 		if (phy->phy_specific_func) {
12831 			DP(NETIF_MSG_LINK, "Calling PHY specific func\n");
12832 			phy->phy_specific_func(phy, params, PHY_INIT);
12833 		}
12834 		if ((phy->media_type == ETH_PHY_SFPP_10G_FIBER) ||
12835 		    (phy->media_type == ETH_PHY_SFP_1G_FIBER) ||
12836 		    (phy->media_type == ETH_PHY_DA_TWINAX))
12837 			bnx2x_verify_sfp_module(phy, params);
12838 	}
12839 	lfa_sts = REG_RD(bp, params->lfa_base +
12840 			 offsetof(struct shmem_lfa,
12841 				  lfa_sts));
12842 
12843 	dont_clear_stat = lfa_sts & SHMEM_LFA_DONT_CLEAR_STAT;
12844 
12845 	/* Re-enable the NIG/MAC */
12846 	if (CHIP_IS_E3(bp)) {
12847 		if (!dont_clear_stat) {
12848 			REG_WR(bp, GRCBASE_MISC +
12849 			       MISC_REGISTERS_RESET_REG_2_CLEAR,
12850 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
12851 				params->port));
12852 			REG_WR(bp, GRCBASE_MISC +
12853 			       MISC_REGISTERS_RESET_REG_2_SET,
12854 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
12855 				params->port));
12856 		}
12857 		if (vars->line_speed < SPEED_10000)
12858 			bnx2x_umac_enable(params, vars, 0);
12859 		else
12860 			bnx2x_xmac_enable(params, vars, 0);
12861 	} else {
12862 		if (vars->line_speed < SPEED_10000)
12863 			bnx2x_emac_enable(params, vars, 0);
12864 		else
12865 			bnx2x_bmac_enable(params, vars, 0, !dont_clear_stat);
12866 	}
12867 
12868 	/* Increment LFA count */
12869 	lfa_sts = ((lfa_sts & ~LINK_FLAP_AVOIDANCE_COUNT_MASK) |
12870 		   (((((lfa_sts & LINK_FLAP_AVOIDANCE_COUNT_MASK) >>
12871 		       LINK_FLAP_AVOIDANCE_COUNT_OFFSET) + 1) & 0xff)
12872 		    << LINK_FLAP_AVOIDANCE_COUNT_OFFSET));
12873 	/* Clear link flap reason */
12874 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
12875 
12876 	REG_WR(bp, params->lfa_base +
12877 	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
12878 
12879 	/* Disable NIG DRAIN */
12880 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12881 
12882 	/* Enable interrupts */
12883 	bnx2x_link_int_enable(params);
12884 	return 0;
12885 }
12886 
bnx2x_cannot_avoid_link_flap(struct link_params * params,struct link_vars * vars,int lfa_status)12887 static void bnx2x_cannot_avoid_link_flap(struct link_params *params,
12888 					 struct link_vars *vars,
12889 					 int lfa_status)
12890 {
12891 	u32 lfa_sts, cfg_idx, tmp_val;
12892 	struct bnx2x *bp = params->bp;
12893 
12894 	bnx2x_link_reset(params, vars, 1);
12895 
12896 	if (!params->lfa_base)
12897 		return;
12898 	/* Store the new link parameters */
12899 	REG_WR(bp, params->lfa_base +
12900 	       offsetof(struct shmem_lfa, req_duplex),
12901 	       params->req_duplex[0] | (params->req_duplex[1] << 16));
12902 
12903 	REG_WR(bp, params->lfa_base +
12904 	       offsetof(struct shmem_lfa, req_flow_ctrl),
12905 	       params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16));
12906 
12907 	REG_WR(bp, params->lfa_base +
12908 	       offsetof(struct shmem_lfa, req_line_speed),
12909 	       params->req_line_speed[0] | (params->req_line_speed[1] << 16));
12910 
12911 	for (cfg_idx = 0; cfg_idx < SHMEM_LINK_CONFIG_SIZE; cfg_idx++) {
12912 		REG_WR(bp, params->lfa_base +
12913 		       offsetof(struct shmem_lfa,
12914 				speed_cap_mask[cfg_idx]),
12915 		       params->speed_cap_mask[cfg_idx]);
12916 	}
12917 
12918 	tmp_val = REG_RD(bp, params->lfa_base +
12919 			 offsetof(struct shmem_lfa, additional_config));
12920 	tmp_val &= ~REQ_FC_AUTO_ADV_MASK;
12921 	tmp_val |= params->req_fc_auto_adv;
12922 
12923 	REG_WR(bp, params->lfa_base +
12924 	       offsetof(struct shmem_lfa, additional_config), tmp_val);
12925 
12926 	lfa_sts = REG_RD(bp, params->lfa_base +
12927 			 offsetof(struct shmem_lfa, lfa_sts));
12928 
12929 	/* Clear the "Don't Clear Statistics" bit, and set reason */
12930 	lfa_sts &= ~SHMEM_LFA_DONT_CLEAR_STAT;
12931 
12932 	/* Set link flap reason */
12933 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
12934 	lfa_sts |= ((lfa_status & LFA_LINK_FLAP_REASON_MASK) <<
12935 		    LFA_LINK_FLAP_REASON_OFFSET);
12936 
12937 	/* Increment link flap counter */
12938 	lfa_sts = ((lfa_sts & ~LINK_FLAP_COUNT_MASK) |
12939 		   (((((lfa_sts & LINK_FLAP_COUNT_MASK) >>
12940 		       LINK_FLAP_COUNT_OFFSET) + 1) & 0xff)
12941 		    << LINK_FLAP_COUNT_OFFSET));
12942 	REG_WR(bp, params->lfa_base +
12943 	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
12944 	/* Proceed with regular link initialization */
12945 }
12946 
bnx2x_phy_init(struct link_params * params,struct link_vars * vars)12947 int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
12948 {
12949 	int lfa_status;
12950 	struct bnx2x *bp = params->bp;
12951 	DP(NETIF_MSG_LINK, "Phy Initialization started\n");
12952 	DP(NETIF_MSG_LINK, "(1) req_speed %d, req_flowctrl %d\n",
12953 		   params->req_line_speed[0], params->req_flow_ctrl[0]);
12954 	DP(NETIF_MSG_LINK, "(2) req_speed %d, req_flowctrl %d\n",
12955 		   params->req_line_speed[1], params->req_flow_ctrl[1]);
12956 	DP(NETIF_MSG_LINK, "req_adv_flow_ctrl 0x%x\n", params->req_fc_auto_adv);
12957 	vars->link_status = 0;
12958 	vars->phy_link_up = 0;
12959 	vars->link_up = 0;
12960 	vars->line_speed = 0;
12961 	vars->duplex = DUPLEX_FULL;
12962 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12963 	vars->mac_type = MAC_TYPE_NONE;
12964 	vars->phy_flags = 0;
12965 	vars->check_kr2_recovery_cnt = 0;
12966 	params->link_flags = PHY_INITIALIZED;
12967 	/* Driver opens NIG-BRB filters */
12968 	bnx2x_set_rx_filter(params, 1);
12969 	bnx2x_chng_link_count(params, true);
12970 	/* Check if link flap can be avoided */
12971 	lfa_status = bnx2x_check_lfa(params);
12972 
12973 	if (lfa_status == 0) {
12974 		DP(NETIF_MSG_LINK, "Link Flap Avoidance in progress\n");
12975 		return bnx2x_avoid_link_flap(params, vars);
12976 	}
12977 
12978 	DP(NETIF_MSG_LINK, "Cannot avoid link flap lfa_sta=0x%x\n",
12979 		       lfa_status);
12980 	bnx2x_cannot_avoid_link_flap(params, vars, lfa_status);
12981 
12982 	/* Disable attentions */
12983 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
12984 		       (NIG_MASK_XGXS0_LINK_STATUS |
12985 			NIG_MASK_XGXS0_LINK10G |
12986 			NIG_MASK_SERDES0_LINK_STATUS |
12987 			NIG_MASK_MI_INT));
12988 
12989 	bnx2x_emac_init(params, vars);
12990 
12991 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
12992 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
12993 
12994 	if (params->num_phys == 0) {
12995 		DP(NETIF_MSG_LINK, "No phy found for initialization !!\n");
12996 		return -EINVAL;
12997 	}
12998 	set_phy_vars(params, vars);
12999 
13000 	DP(NETIF_MSG_LINK, "Num of phys on board: %d\n", params->num_phys);
13001 	switch (params->loopback_mode) {
13002 	case LOOPBACK_BMAC:
13003 		bnx2x_init_bmac_loopback(params, vars);
13004 		break;
13005 	case LOOPBACK_EMAC:
13006 		bnx2x_init_emac_loopback(params, vars);
13007 		break;
13008 	case LOOPBACK_XMAC:
13009 		bnx2x_init_xmac_loopback(params, vars);
13010 		break;
13011 	case LOOPBACK_UMAC:
13012 		bnx2x_init_umac_loopback(params, vars);
13013 		break;
13014 	case LOOPBACK_XGXS:
13015 	case LOOPBACK_EXT_PHY:
13016 		bnx2x_init_xgxs_loopback(params, vars);
13017 		break;
13018 	default:
13019 		if (!CHIP_IS_E3(bp)) {
13020 			if (params->switch_cfg == SWITCH_CFG_10G)
13021 				bnx2x_xgxs_deassert(params);
13022 			else
13023 				bnx2x_serdes_deassert(bp, params->port);
13024 		}
13025 		bnx2x_link_initialize(params, vars);
13026 		msleep(30);
13027 		bnx2x_link_int_enable(params);
13028 		break;
13029 	}
13030 	bnx2x_update_mng(params, vars->link_status);
13031 
13032 	bnx2x_update_mng_eee(params, vars->eee_status);
13033 	return 0;
13034 }
13035 
bnx2x_link_reset(struct link_params * params,struct link_vars * vars,u8 reset_ext_phy)13036 int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
13037 		     u8 reset_ext_phy)
13038 {
13039 	struct bnx2x *bp = params->bp;
13040 	u8 phy_index, port = params->port, clear_latch_ind = 0;
13041 	DP(NETIF_MSG_LINK, "Resetting the link of port %d\n", port);
13042 	/* Disable attentions */
13043 	vars->link_status = 0;
13044 	bnx2x_chng_link_count(params, true);
13045 	bnx2x_update_mng(params, vars->link_status);
13046 	vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
13047 			      SHMEM_EEE_ACTIVE_BIT);
13048 	bnx2x_update_mng_eee(params, vars->eee_status);
13049 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
13050 		       (NIG_MASK_XGXS0_LINK_STATUS |
13051 			NIG_MASK_XGXS0_LINK10G |
13052 			NIG_MASK_SERDES0_LINK_STATUS |
13053 			NIG_MASK_MI_INT));
13054 
13055 	/* Activate nig drain */
13056 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
13057 
13058 	/* Disable nig egress interface */
13059 	if (!CHIP_IS_E3(bp)) {
13060 		REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0);
13061 		REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0);
13062 	}
13063 
13064 	if (!CHIP_IS_E3(bp)) {
13065 		bnx2x_set_bmac_rx(bp, params->chip_id, port, 0);
13066 	} else {
13067 		bnx2x_set_xmac_rxtx(params, 0);
13068 		bnx2x_set_umac_rxtx(params, 0);
13069 	}
13070 	/* Disable emac */
13071 	if (!CHIP_IS_E3(bp))
13072 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
13073 
13074 	usleep_range(10000, 20000);
13075 	/* The PHY reset is controlled by GPIO 1
13076 	 * Hold it as vars low
13077 	 */
13078 	 /* Clear link led */
13079 	bnx2x_set_mdio_emac_per_phy(bp, params);
13080 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
13081 
13082 	if (reset_ext_phy) {
13083 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
13084 		      phy_index++) {
13085 			if (params->phy[phy_index].link_reset) {
13086 				bnx2x_set_aer_mmd(params,
13087 						  &params->phy[phy_index]);
13088 				params->phy[phy_index].link_reset(
13089 					&params->phy[phy_index],
13090 					params);
13091 			}
13092 			if (params->phy[phy_index].flags &
13093 			    FLAGS_REARM_LATCH_SIGNAL)
13094 				clear_latch_ind = 1;
13095 		}
13096 	}
13097 
13098 	if (clear_latch_ind) {
13099 		/* Clear latching indication */
13100 		bnx2x_rearm_latch_signal(bp, port, 0);
13101 		bnx2x_bits_dis(bp, NIG_REG_LATCH_BC_0 + port*4,
13102 			       1 << NIG_LATCH_BC_ENABLE_MI_INT);
13103 	}
13104 	if (params->phy[INT_PHY].link_reset)
13105 		params->phy[INT_PHY].link_reset(
13106 			&params->phy[INT_PHY], params);
13107 
13108 	/* Disable nig ingress interface */
13109 	if (!CHIP_IS_E3(bp)) {
13110 		/* Reset BigMac */
13111 		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
13112 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
13113 		REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0);
13114 		REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0);
13115 	} else {
13116 		u32 xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
13117 		bnx2x_set_xumac_nig(params, 0, 0);
13118 		if (REG_RD(bp, MISC_REG_RESET_REG_2) &
13119 		    MISC_REGISTERS_RESET_REG_2_XMAC)
13120 			REG_WR(bp, xmac_base + XMAC_REG_CTRL,
13121 			       XMAC_CTRL_REG_SOFT_RESET);
13122 	}
13123 	vars->link_up = 0;
13124 	vars->phy_flags = 0;
13125 	return 0;
13126 }
bnx2x_lfa_reset(struct link_params * params,struct link_vars * vars)13127 int bnx2x_lfa_reset(struct link_params *params,
13128 			       struct link_vars *vars)
13129 {
13130 	struct bnx2x *bp = params->bp;
13131 	vars->link_up = 0;
13132 	vars->phy_flags = 0;
13133 	params->link_flags &= ~PHY_INITIALIZED;
13134 	if (!params->lfa_base)
13135 		return bnx2x_link_reset(params, vars, 1);
13136 	/*
13137 	 * Activate NIG drain so that during this time the device won't send
13138 	 * anything while it is unable to response.
13139 	 */
13140 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
13141 
13142 	/*
13143 	 * Close gracefully the gate from BMAC to NIG such that no half packets
13144 	 * are passed.
13145 	 */
13146 	if (!CHIP_IS_E3(bp))
13147 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
13148 
13149 	if (CHIP_IS_E3(bp)) {
13150 		bnx2x_set_xmac_rxtx(params, 0);
13151 		bnx2x_set_umac_rxtx(params, 0);
13152 	}
13153 	/* Wait 10ms for the pipe to clean up*/
13154 	usleep_range(10000, 20000);
13155 
13156 	/* Clean the NIG-BRB using the network filters in a way that will
13157 	 * not cut a packet in the middle.
13158 	 */
13159 	bnx2x_set_rx_filter(params, 0);
13160 
13161 	/*
13162 	 * Re-open the gate between the BMAC and the NIG, after verifying the
13163 	 * gate to the BRB is closed, otherwise packets may arrive to the
13164 	 * firmware before driver had initialized it. The target is to achieve
13165 	 * minimum management protocol down time.
13166 	 */
13167 	if (!CHIP_IS_E3(bp))
13168 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 1);
13169 
13170 	if (CHIP_IS_E3(bp)) {
13171 		bnx2x_set_xmac_rxtx(params, 1);
13172 		bnx2x_set_umac_rxtx(params, 1);
13173 	}
13174 	/* Disable NIG drain */
13175 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13176 	return 0;
13177 }
13178 
13179 /****************************************************************************/
13180 /*				Common function				    */
13181 /****************************************************************************/
bnx2x_8073_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13182 static int bnx2x_8073_common_init_phy(struct bnx2x *bp,
13183 				      u32 shmem_base_path[],
13184 				      u32 shmem2_base_path[], u8 phy_index,
13185 				      u32 chip_id)
13186 {
13187 	struct bnx2x_phy phy[PORT_MAX];
13188 	struct bnx2x_phy *phy_blk[PORT_MAX];
13189 	u16 val;
13190 	s8 port = 0;
13191 	s8 port_of_path = 0;
13192 	u32 swap_val, swap_override;
13193 	swap_val = REG_RD(bp,  NIG_REG_PORT_SWAP);
13194 	swap_override = REG_RD(bp,  NIG_REG_STRAP_OVERRIDE);
13195 	port ^= (swap_val && swap_override);
13196 	bnx2x_ext_phy_hw_reset(bp, port);
13197 	/* PART1 - Reset both phys */
13198 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13199 		u32 shmem_base, shmem2_base;
13200 		/* In E2, same phy is using for port0 of the two paths */
13201 		if (CHIP_IS_E1x(bp)) {
13202 			shmem_base = shmem_base_path[0];
13203 			shmem2_base = shmem2_base_path[0];
13204 			port_of_path = port;
13205 		} else {
13206 			shmem_base = shmem_base_path[port];
13207 			shmem2_base = shmem2_base_path[port];
13208 			port_of_path = 0;
13209 		}
13210 
13211 		/* Extract the ext phy address for the port */
13212 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13213 				       port_of_path, &phy[port]) !=
13214 		    0) {
13215 			DP(NETIF_MSG_LINK, "populate_phy failed\n");
13216 			return -EINVAL;
13217 		}
13218 		/* Disable attentions */
13219 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
13220 			       port_of_path*4,
13221 			       (NIG_MASK_XGXS0_LINK_STATUS |
13222 				NIG_MASK_XGXS0_LINK10G |
13223 				NIG_MASK_SERDES0_LINK_STATUS |
13224 				NIG_MASK_MI_INT));
13225 
13226 		/* Need to take the phy out of low power mode in order
13227 		 * to write to access its registers
13228 		 */
13229 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
13230 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
13231 			       port);
13232 
13233 		/* Reset the phy */
13234 		bnx2x_cl45_write(bp, &phy[port],
13235 				 MDIO_PMA_DEVAD,
13236 				 MDIO_PMA_REG_CTRL,
13237 				 1<<15);
13238 	}
13239 
13240 	/* Add delay of 150ms after reset */
13241 	msleep(150);
13242 
13243 	if (phy[PORT_0].addr & 0x1) {
13244 		phy_blk[PORT_0] = &(phy[PORT_1]);
13245 		phy_blk[PORT_1] = &(phy[PORT_0]);
13246 	} else {
13247 		phy_blk[PORT_0] = &(phy[PORT_0]);
13248 		phy_blk[PORT_1] = &(phy[PORT_1]);
13249 	}
13250 
13251 	/* PART2 - Download firmware to both phys */
13252 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13253 		if (CHIP_IS_E1x(bp))
13254 			port_of_path = port;
13255 		else
13256 			port_of_path = 0;
13257 
13258 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
13259 			   phy_blk[port]->addr);
13260 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
13261 						      port_of_path))
13262 			return -EINVAL;
13263 
13264 		/* Only set bit 10 = 1 (Tx power down) */
13265 		bnx2x_cl45_read(bp, phy_blk[port],
13266 				MDIO_PMA_DEVAD,
13267 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
13268 
13269 		/* Phase1 of TX_POWER_DOWN reset */
13270 		bnx2x_cl45_write(bp, phy_blk[port],
13271 				 MDIO_PMA_DEVAD,
13272 				 MDIO_PMA_REG_TX_POWER_DOWN,
13273 				 (val | 1<<10));
13274 	}
13275 
13276 	/* Toggle Transmitter: Power down and then up with 600ms delay
13277 	 * between
13278 	 */
13279 	msleep(600);
13280 
13281 	/* PART3 - complete TX_POWER_DOWN process, and set GPIO2 back to low */
13282 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13283 		/* Phase2 of POWER_DOWN_RESET */
13284 		/* Release bit 10 (Release Tx power down) */
13285 		bnx2x_cl45_read(bp, phy_blk[port],
13286 				MDIO_PMA_DEVAD,
13287 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
13288 
13289 		bnx2x_cl45_write(bp, phy_blk[port],
13290 				MDIO_PMA_DEVAD,
13291 				MDIO_PMA_REG_TX_POWER_DOWN, (val & (~(1<<10))));
13292 		usleep_range(15000, 30000);
13293 
13294 		/* Read modify write the SPI-ROM version select register */
13295 		bnx2x_cl45_read(bp, phy_blk[port],
13296 				MDIO_PMA_DEVAD,
13297 				MDIO_PMA_REG_EDC_FFE_MAIN, &val);
13298 		bnx2x_cl45_write(bp, phy_blk[port],
13299 				 MDIO_PMA_DEVAD,
13300 				 MDIO_PMA_REG_EDC_FFE_MAIN, (val | (1<<12)));
13301 
13302 		/* set GPIO2 back to LOW */
13303 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
13304 			       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
13305 	}
13306 	return 0;
13307 }
bnx2x_8726_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13308 static int bnx2x_8726_common_init_phy(struct bnx2x *bp,
13309 				      u32 shmem_base_path[],
13310 				      u32 shmem2_base_path[], u8 phy_index,
13311 				      u32 chip_id)
13312 {
13313 	u32 val;
13314 	s8 port;
13315 	struct bnx2x_phy phy;
13316 	/* Use port1 because of the static port-swap */
13317 	/* Enable the module detection interrupt */
13318 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
13319 	val |= ((1<<MISC_REGISTERS_GPIO_3)|
13320 		(1<<(MISC_REGISTERS_GPIO_3 + MISC_REGISTERS_GPIO_PORT_SHIFT)));
13321 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
13322 
13323 	bnx2x_ext_phy_hw_reset(bp, 0);
13324 	usleep_range(5000, 10000);
13325 	for (port = 0; port < PORT_MAX; port++) {
13326 		u32 shmem_base, shmem2_base;
13327 
13328 		/* In E2, same phy is using for port0 of the two paths */
13329 		if (CHIP_IS_E1x(bp)) {
13330 			shmem_base = shmem_base_path[0];
13331 			shmem2_base = shmem2_base_path[0];
13332 		} else {
13333 			shmem_base = shmem_base_path[port];
13334 			shmem2_base = shmem2_base_path[port];
13335 		}
13336 		/* Extract the ext phy address for the port */
13337 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13338 				       port, &phy) !=
13339 		    0) {
13340 			DP(NETIF_MSG_LINK, "populate phy failed\n");
13341 			return -EINVAL;
13342 		}
13343 
13344 		/* Reset phy*/
13345 		bnx2x_cl45_write(bp, &phy,
13346 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x0001);
13347 
13348 
13349 		/* Set fault module detected LED on */
13350 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_0,
13351 			       MISC_REGISTERS_GPIO_HIGH,
13352 			       port);
13353 	}
13354 
13355 	return 0;
13356 }
bnx2x_get_ext_phy_reset_gpio(struct bnx2x * bp,u32 shmem_base,u8 * io_gpio,u8 * io_port)13357 static void bnx2x_get_ext_phy_reset_gpio(struct bnx2x *bp, u32 shmem_base,
13358 					 u8 *io_gpio, u8 *io_port)
13359 {
13360 
13361 	u32 phy_gpio_reset = REG_RD(bp, shmem_base +
13362 					  offsetof(struct shmem_region,
13363 				dev_info.port_hw_config[PORT_0].default_cfg));
13364 	switch (phy_gpio_reset) {
13365 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0:
13366 		*io_gpio = 0;
13367 		*io_port = 0;
13368 		break;
13369 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P0:
13370 		*io_gpio = 1;
13371 		*io_port = 0;
13372 		break;
13373 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P0:
13374 		*io_gpio = 2;
13375 		*io_port = 0;
13376 		break;
13377 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P0:
13378 		*io_gpio = 3;
13379 		*io_port = 0;
13380 		break;
13381 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P1:
13382 		*io_gpio = 0;
13383 		*io_port = 1;
13384 		break;
13385 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P1:
13386 		*io_gpio = 1;
13387 		*io_port = 1;
13388 		break;
13389 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P1:
13390 		*io_gpio = 2;
13391 		*io_port = 1;
13392 		break;
13393 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P1:
13394 		*io_gpio = 3;
13395 		*io_port = 1;
13396 		break;
13397 	default:
13398 		/* Don't override the io_gpio and io_port */
13399 		break;
13400 	}
13401 }
13402 
bnx2x_8727_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13403 static int bnx2x_8727_common_init_phy(struct bnx2x *bp,
13404 				      u32 shmem_base_path[],
13405 				      u32 shmem2_base_path[], u8 phy_index,
13406 				      u32 chip_id)
13407 {
13408 	s8 port, reset_gpio;
13409 	u32 swap_val, swap_override;
13410 	struct bnx2x_phy phy[PORT_MAX];
13411 	struct bnx2x_phy *phy_blk[PORT_MAX];
13412 	s8 port_of_path;
13413 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
13414 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
13415 
13416 	reset_gpio = MISC_REGISTERS_GPIO_1;
13417 	port = 1;
13418 
13419 	/* Retrieve the reset gpio/port which control the reset.
13420 	 * Default is GPIO1, PORT1
13421 	 */
13422 	bnx2x_get_ext_phy_reset_gpio(bp, shmem_base_path[0],
13423 				     (u8 *)&reset_gpio, (u8 *)&port);
13424 
13425 	/* Calculate the port based on port swap */
13426 	port ^= (swap_val && swap_override);
13427 
13428 	/* Initiate PHY reset*/
13429 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_LOW,
13430 		       port);
13431 	usleep_range(1000, 2000);
13432 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_HIGH,
13433 		       port);
13434 
13435 	usleep_range(5000, 10000);
13436 
13437 	/* PART1 - Reset both phys */
13438 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13439 		u32 shmem_base, shmem2_base;
13440 
13441 		/* In E2, same phy is using for port0 of the two paths */
13442 		if (CHIP_IS_E1x(bp)) {
13443 			shmem_base = shmem_base_path[0];
13444 			shmem2_base = shmem2_base_path[0];
13445 			port_of_path = port;
13446 		} else {
13447 			shmem_base = shmem_base_path[port];
13448 			shmem2_base = shmem2_base_path[port];
13449 			port_of_path = 0;
13450 		}
13451 
13452 		/* Extract the ext phy address for the port */
13453 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13454 				       port_of_path, &phy[port]) !=
13455 				       0) {
13456 			DP(NETIF_MSG_LINK, "populate phy failed\n");
13457 			return -EINVAL;
13458 		}
13459 		/* disable attentions */
13460 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
13461 			       port_of_path*4,
13462 			       (NIG_MASK_XGXS0_LINK_STATUS |
13463 				NIG_MASK_XGXS0_LINK10G |
13464 				NIG_MASK_SERDES0_LINK_STATUS |
13465 				NIG_MASK_MI_INT));
13466 
13467 
13468 		/* Reset the phy */
13469 		bnx2x_cl45_write(bp, &phy[port],
13470 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
13471 	}
13472 
13473 	/* Add delay of 150ms after reset */
13474 	msleep(150);
13475 	if (phy[PORT_0].addr & 0x1) {
13476 		phy_blk[PORT_0] = &(phy[PORT_1]);
13477 		phy_blk[PORT_1] = &(phy[PORT_0]);
13478 	} else {
13479 		phy_blk[PORT_0] = &(phy[PORT_0]);
13480 		phy_blk[PORT_1] = &(phy[PORT_1]);
13481 	}
13482 	/* PART2 - Download firmware to both phys */
13483 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13484 		if (CHIP_IS_E1x(bp))
13485 			port_of_path = port;
13486 		else
13487 			port_of_path = 0;
13488 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
13489 			   phy_blk[port]->addr);
13490 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
13491 						      port_of_path))
13492 			return -EINVAL;
13493 		/* Disable PHY transmitter output */
13494 		bnx2x_cl45_write(bp, phy_blk[port],
13495 				 MDIO_PMA_DEVAD,
13496 				 MDIO_PMA_REG_TX_DISABLE, 1);
13497 
13498 	}
13499 	return 0;
13500 }
13501 
bnx2x_84833_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13502 static int bnx2x_84833_common_init_phy(struct bnx2x *bp,
13503 						u32 shmem_base_path[],
13504 						u32 shmem2_base_path[],
13505 						u8 phy_index,
13506 						u32 chip_id)
13507 {
13508 	u8 reset_gpios;
13509 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path, chip_id);
13510 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
13511 	udelay(10);
13512 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_HIGH);
13513 	DP(NETIF_MSG_LINK, "84833 reset pulse on pin values 0x%x\n",
13514 		reset_gpios);
13515 	return 0;
13516 }
13517 
bnx2x_ext_phy_common_init(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 ext_phy_type,u32 chip_id)13518 static int bnx2x_ext_phy_common_init(struct bnx2x *bp, u32 shmem_base_path[],
13519 				     u32 shmem2_base_path[], u8 phy_index,
13520 				     u32 ext_phy_type, u32 chip_id)
13521 {
13522 	int rc = 0;
13523 
13524 	switch (ext_phy_type) {
13525 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
13526 		rc = bnx2x_8073_common_init_phy(bp, shmem_base_path,
13527 						shmem2_base_path,
13528 						phy_index, chip_id);
13529 		break;
13530 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
13531 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
13532 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
13533 		rc = bnx2x_8727_common_init_phy(bp, shmem_base_path,
13534 						shmem2_base_path,
13535 						phy_index, chip_id);
13536 		break;
13537 
13538 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
13539 		/* GPIO1 affects both ports, so there's need to pull
13540 		 * it for single port alone
13541 		 */
13542 		rc = bnx2x_8726_common_init_phy(bp, shmem_base_path,
13543 						shmem2_base_path,
13544 						phy_index, chip_id);
13545 		break;
13546 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
13547 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
13548 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84858:
13549 		/* GPIO3's are linked, and so both need to be toggled
13550 		 * to obtain required 2us pulse.
13551 		 */
13552 		rc = bnx2x_84833_common_init_phy(bp, shmem_base_path,
13553 						shmem2_base_path,
13554 						phy_index, chip_id);
13555 		break;
13556 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
13557 		rc = -EINVAL;
13558 		break;
13559 	default:
13560 		DP(NETIF_MSG_LINK,
13561 			   "ext_phy 0x%x common init not required\n",
13562 			   ext_phy_type);
13563 		break;
13564 	}
13565 
13566 	if (rc)
13567 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
13568 				      " Port %d\n",
13569 			 0);
13570 	return rc;
13571 }
13572 
bnx2x_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u32 chip_id)13573 int bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base_path[],
13574 			  u32 shmem2_base_path[], u32 chip_id)
13575 {
13576 	int rc = 0;
13577 	u32 phy_ver, val;
13578 	u8 phy_index = 0;
13579 	u32 ext_phy_type, ext_phy_config;
13580 
13581 	bnx2x_set_mdio_clk(bp, chip_id, GRCBASE_EMAC0);
13582 	bnx2x_set_mdio_clk(bp, chip_id, GRCBASE_EMAC1);
13583 	DP(NETIF_MSG_LINK, "Begin common phy init\n");
13584 	if (CHIP_IS_E3(bp)) {
13585 		/* Enable EPIO */
13586 		val = REG_RD(bp, MISC_REG_GEN_PURP_HWG);
13587 		REG_WR(bp, MISC_REG_GEN_PURP_HWG, val | 1);
13588 	}
13589 	/* Check if common init was already done */
13590 	phy_ver = REG_RD(bp, shmem_base_path[0] +
13591 			 offsetof(struct shmem_region,
13592 				  port_mb[PORT_0].ext_phy_fw_version));
13593 	if (phy_ver) {
13594 		DP(NETIF_MSG_LINK, "Not doing common init; phy ver is 0x%x\n",
13595 			       phy_ver);
13596 		return 0;
13597 	}
13598 
13599 	/* Read the ext_phy_type for arbitrary port(0) */
13600 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
13601 	      phy_index++) {
13602 		ext_phy_config = bnx2x_get_ext_phy_config(bp,
13603 							  shmem_base_path[0],
13604 							  phy_index, 0);
13605 		ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
13606 		rc |= bnx2x_ext_phy_common_init(bp, shmem_base_path,
13607 						shmem2_base_path,
13608 						phy_index, ext_phy_type,
13609 						chip_id);
13610 	}
13611 	return rc;
13612 }
13613 
bnx2x_check_over_curr(struct link_params * params,struct link_vars * vars)13614 static void bnx2x_check_over_curr(struct link_params *params,
13615 				  struct link_vars *vars)
13616 {
13617 	struct bnx2x *bp = params->bp;
13618 	u32 cfg_pin;
13619 	u8 port = params->port;
13620 	u32 pin_val;
13621 
13622 	cfg_pin = (REG_RD(bp, params->shmem_base +
13623 			  offsetof(struct shmem_region,
13624 			       dev_info.port_hw_config[port].e3_cmn_pin_cfg1)) &
13625 		   PORT_HW_CFG_E3_OVER_CURRENT_MASK) >>
13626 		PORT_HW_CFG_E3_OVER_CURRENT_SHIFT;
13627 
13628 	/* Ignore check if no external input PIN available */
13629 	if (bnx2x_get_cfg_pin(bp, cfg_pin, &pin_val) != 0)
13630 		return;
13631 
13632 	if (!pin_val) {
13633 		if ((vars->phy_flags & PHY_OVER_CURRENT_FLAG) == 0) {
13634 			netdev_err(bp->dev, "Error:  Power fault on Port %d has"
13635 					    " been detected and the power to "
13636 					    "that SFP+ module has been removed"
13637 					    " to prevent failure of the card."
13638 					    " Please remove the SFP+ module and"
13639 					    " restart the system to clear this"
13640 					    " error.\n",
13641 			 params->port);
13642 			vars->phy_flags |= PHY_OVER_CURRENT_FLAG;
13643 			bnx2x_warpcore_power_module(params, 0);
13644 		}
13645 	} else
13646 		vars->phy_flags &= ~PHY_OVER_CURRENT_FLAG;
13647 }
13648 
13649 /* Returns 0 if no change occurred since last check; 1 otherwise. */
bnx2x_analyze_link_error(struct link_params * params,struct link_vars * vars,u32 status,u32 phy_flag,u32 link_flag,u8 notify)13650 static u8 bnx2x_analyze_link_error(struct link_params *params,
13651 				    struct link_vars *vars, u32 status,
13652 				    u32 phy_flag, u32 link_flag, u8 notify)
13653 {
13654 	struct bnx2x *bp = params->bp;
13655 	/* Compare new value with previous value */
13656 	u8 led_mode;
13657 	u32 old_status = (vars->phy_flags & phy_flag) ? 1 : 0;
13658 
13659 	if ((status ^ old_status) == 0)
13660 		return 0;
13661 
13662 	/* If values differ */
13663 	switch (phy_flag) {
13664 	case PHY_HALF_OPEN_CONN_FLAG:
13665 		DP(NETIF_MSG_LINK, "Analyze Remote Fault\n");
13666 		break;
13667 	case PHY_SFP_TX_FAULT_FLAG:
13668 		DP(NETIF_MSG_LINK, "Analyze TX Fault\n");
13669 		break;
13670 	default:
13671 		DP(NETIF_MSG_LINK, "Analyze UNKNOWN\n");
13672 	}
13673 	DP(NETIF_MSG_LINK, "Link changed:[%x %x]->%x\n", vars->link_up,
13674 	   old_status, status);
13675 
13676 	/* Do not touch the link in case physical link down */
13677 	if ((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0)
13678 		return 1;
13679 
13680 	/* a. Update shmem->link_status accordingly
13681 	 * b. Update link_vars->link_up
13682 	 */
13683 	if (status) {
13684 		vars->link_status &= ~LINK_STATUS_LINK_UP;
13685 		vars->link_status |= link_flag;
13686 		vars->link_up = 0;
13687 		vars->phy_flags |= phy_flag;
13688 
13689 		/* activate nig drain */
13690 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
13691 		/* Set LED mode to off since the PHY doesn't know about these
13692 		 * errors
13693 		 */
13694 		led_mode = LED_MODE_OFF;
13695 	} else {
13696 		vars->link_status |= LINK_STATUS_LINK_UP;
13697 		vars->link_status &= ~link_flag;
13698 		vars->link_up = 1;
13699 		vars->phy_flags &= ~phy_flag;
13700 		led_mode = LED_MODE_OPER;
13701 
13702 		/* Clear nig drain */
13703 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13704 	}
13705 	bnx2x_sync_link(params, vars);
13706 	/* Update the LED according to the link state */
13707 	bnx2x_set_led(params, vars, led_mode, SPEED_10000);
13708 
13709 	/* Update link status in the shared memory */
13710 	bnx2x_update_mng(params, vars->link_status);
13711 
13712 	/* C. Trigger General Attention */
13713 	vars->periodic_flags |= PERIODIC_FLAGS_LINK_EVENT;
13714 	if (notify)
13715 		bnx2x_notify_link_changed(bp);
13716 
13717 	return 1;
13718 }
13719 
13720 /******************************************************************************
13721 * Description:
13722 *	This function checks for half opened connection change indication.
13723 *	When such change occurs, it calls the bnx2x_analyze_link_error
13724 *	to check if Remote Fault is set or cleared. Reception of remote fault
13725 *	status message in the MAC indicates that the peer's MAC has detected
13726 *	a fault, for example, due to break in the TX side of fiber.
13727 *
13728 ******************************************************************************/
bnx2x_check_half_open_conn(struct link_params * params,struct link_vars * vars,u8 notify)13729 static int bnx2x_check_half_open_conn(struct link_params *params,
13730 				      struct link_vars *vars,
13731 				      u8 notify)
13732 {
13733 	struct bnx2x *bp = params->bp;
13734 	u32 lss_status = 0;
13735 	u32 mac_base;
13736 	/* In case link status is physically up @ 10G do */
13737 	if (((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0) ||
13738 	    (REG_RD(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4)))
13739 		return 0;
13740 
13741 	if (CHIP_IS_E3(bp) &&
13742 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
13743 	      (MISC_REGISTERS_RESET_REG_2_XMAC))) {
13744 		/* Check E3 XMAC */
13745 		/* Note that link speed cannot be queried here, since it may be
13746 		 * zero while link is down. In case UMAC is active, LSS will
13747 		 * simply not be set
13748 		 */
13749 		mac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
13750 
13751 		/* Clear stick bits (Requires rising edge) */
13752 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
13753 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
13754 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
13755 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
13756 		if (REG_RD(bp, mac_base + XMAC_REG_RX_LSS_STATUS))
13757 			lss_status = 1;
13758 
13759 		bnx2x_analyze_link_error(params, vars, lss_status,
13760 					 PHY_HALF_OPEN_CONN_FLAG,
13761 					 LINK_STATUS_NONE, notify);
13762 	} else if (REG_RD(bp, MISC_REG_RESET_REG_2) &
13763 		   (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) {
13764 		/* Check E1X / E2 BMAC */
13765 		u32 lss_status_reg;
13766 		u32 wb_data[2];
13767 		mac_base = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
13768 			NIG_REG_INGRESS_BMAC0_MEM;
13769 		/*  Read BIGMAC_REGISTER_RX_LSS_STATUS */
13770 		if (CHIP_IS_E2(bp))
13771 			lss_status_reg = BIGMAC2_REGISTER_RX_LSS_STAT;
13772 		else
13773 			lss_status_reg = BIGMAC_REGISTER_RX_LSS_STATUS;
13774 
13775 		REG_RD_DMAE(bp, mac_base + lss_status_reg, wb_data, 2);
13776 		lss_status = (wb_data[0] > 0);
13777 
13778 		bnx2x_analyze_link_error(params, vars, lss_status,
13779 					 PHY_HALF_OPEN_CONN_FLAG,
13780 					 LINK_STATUS_NONE, notify);
13781 	}
13782 	return 0;
13783 }
bnx2x_sfp_tx_fault_detection(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)13784 static void bnx2x_sfp_tx_fault_detection(struct bnx2x_phy *phy,
13785 					 struct link_params *params,
13786 					 struct link_vars *vars)
13787 {
13788 	struct bnx2x *bp = params->bp;
13789 	u32 cfg_pin, value = 0;
13790 	u8 led_change, port = params->port;
13791 
13792 	/* Get The SFP+ TX_Fault controlling pin ([eg]pio) */
13793 	cfg_pin = (REG_RD(bp, params->shmem_base + offsetof(struct shmem_region,
13794 			  dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
13795 		   PORT_HW_CFG_E3_TX_FAULT_MASK) >>
13796 		  PORT_HW_CFG_E3_TX_FAULT_SHIFT;
13797 
13798 	if (bnx2x_get_cfg_pin(bp, cfg_pin, &value)) {
13799 		DP(NETIF_MSG_LINK, "Failed to read pin 0x%02x\n", cfg_pin);
13800 		return;
13801 	}
13802 
13803 	led_change = bnx2x_analyze_link_error(params, vars, value,
13804 					      PHY_SFP_TX_FAULT_FLAG,
13805 					      LINK_STATUS_SFP_TX_FAULT, 1);
13806 
13807 	if (led_change) {
13808 		/* Change TX_Fault led, set link status for further syncs */
13809 		u8 led_mode;
13810 
13811 		if (vars->phy_flags & PHY_SFP_TX_FAULT_FLAG) {
13812 			led_mode = MISC_REGISTERS_GPIO_HIGH;
13813 			vars->link_status |= LINK_STATUS_SFP_TX_FAULT;
13814 		} else {
13815 			led_mode = MISC_REGISTERS_GPIO_LOW;
13816 			vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
13817 		}
13818 
13819 		/* If module is unapproved, led should be on regardless */
13820 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED)) {
13821 			DP(NETIF_MSG_LINK, "Change TX_Fault LED: ->%x\n",
13822 			   led_mode);
13823 			bnx2x_set_e3_module_fault_led(params, led_mode);
13824 		}
13825 	}
13826 }
bnx2x_kr2_recovery(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)13827 static void bnx2x_kr2_recovery(struct link_params *params,
13828 			       struct link_vars *vars,
13829 			       struct bnx2x_phy *phy)
13830 {
13831 	struct bnx2x *bp = params->bp;
13832 	DP(NETIF_MSG_LINK, "KR2 recovery\n");
13833 	bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
13834 	bnx2x_warpcore_restart_AN_KR(phy, params);
13835 }
13836 
bnx2x_check_kr2_wa(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)13837 static void bnx2x_check_kr2_wa(struct link_params *params,
13838 			       struct link_vars *vars,
13839 			       struct bnx2x_phy *phy)
13840 {
13841 	struct bnx2x *bp = params->bp;
13842 	u16 base_page, next_page, not_kr2_device, lane;
13843 	int sigdet;
13844 
13845 	/* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery
13846 	 * Since some switches tend to reinit the AN process and clear the
13847 	 * advertised BP/NP after ~2 seconds causing the KR2 to be disabled
13848 	 * and recovered many times
13849 	 */
13850 	if (vars->check_kr2_recovery_cnt > 0) {
13851 		vars->check_kr2_recovery_cnt--;
13852 		return;
13853 	}
13854 
13855 	sigdet = bnx2x_warpcore_get_sigdet(phy, params);
13856 	if (!sigdet) {
13857 		if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13858 			bnx2x_kr2_recovery(params, vars, phy);
13859 			DP(NETIF_MSG_LINK, "No sigdet\n");
13860 		}
13861 		return;
13862 	}
13863 
13864 	lane = bnx2x_get_warpcore_lane(phy, params);
13865 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
13866 			  MDIO_AER_BLOCK_AER_REG, lane);
13867 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
13868 			MDIO_AN_REG_LP_AUTO_NEG, &base_page);
13869 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
13870 			MDIO_AN_REG_LP_AUTO_NEG2, &next_page);
13871 	bnx2x_set_aer_mmd(params, phy);
13872 
13873 	/* CL73 has not begun yet */
13874 	if (base_page == 0) {
13875 		if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13876 			bnx2x_kr2_recovery(params, vars, phy);
13877 			DP(NETIF_MSG_LINK, "No BP\n");
13878 		}
13879 		return;
13880 	}
13881 
13882 	/* In case NP bit is not set in the BasePage, or it is set,
13883 	 * but only KX is advertised, declare this link partner as non-KR2
13884 	 * device.
13885 	 */
13886 	not_kr2_device = (((base_page & 0x8000) == 0) ||
13887 			  (((base_page & 0x8000) &&
13888 			    ((next_page & 0xe0) == 0x20))));
13889 
13890 	/* In case KR2 is already disabled, check if we need to re-enable it */
13891 	if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13892 		if (!not_kr2_device) {
13893 			DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page,
13894 			   next_page);
13895 			bnx2x_kr2_recovery(params, vars, phy);
13896 		}
13897 		return;
13898 	}
13899 	/* KR2 is enabled, but not KR2 device */
13900 	if (not_kr2_device) {
13901 		/* Disable KR2 on both lanes */
13902 		DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page, next_page);
13903 		bnx2x_disable_kr2(params, vars, phy);
13904 		/* Restart AN on leading lane */
13905 		bnx2x_warpcore_restart_AN_KR(phy, params);
13906 		return;
13907 	}
13908 }
13909 
bnx2x_period_func(struct link_params * params,struct link_vars * vars)13910 void bnx2x_period_func(struct link_params *params, struct link_vars *vars)
13911 {
13912 	u16 phy_idx;
13913 	struct bnx2x *bp = params->bp;
13914 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
13915 		if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
13916 			bnx2x_set_aer_mmd(params, &params->phy[phy_idx]);
13917 			if (bnx2x_check_half_open_conn(params, vars, 1) !=
13918 			    0)
13919 				DP(NETIF_MSG_LINK, "Fault detection failed\n");
13920 			break;
13921 		}
13922 	}
13923 
13924 	if (CHIP_IS_E3(bp)) {
13925 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
13926 		bnx2x_set_aer_mmd(params, phy);
13927 		if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
13928 		     (phy->speed_cap_mask &
13929 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)) ||
13930 		    (phy->req_line_speed == SPEED_20000))
13931 			bnx2x_check_kr2_wa(params, vars, phy);
13932 		bnx2x_check_over_curr(params, vars);
13933 		if (vars->rx_tx_asic_rst)
13934 			bnx2x_warpcore_config_runtime(phy, params, vars);
13935 
13936 		if ((REG_RD(bp, params->shmem_base +
13937 			    offsetof(struct shmem_region, dev_info.
13938 				port_hw_config[params->port].default_cfg))
13939 		    & PORT_HW_CFG_NET_SERDES_IF_MASK) ==
13940 		    PORT_HW_CFG_NET_SERDES_IF_SFI) {
13941 			if (bnx2x_is_sfp_module_plugged(phy, params)) {
13942 				bnx2x_sfp_tx_fault_detection(phy, params, vars);
13943 			} else if (vars->link_status &
13944 				LINK_STATUS_SFP_TX_FAULT) {
13945 				/* Clean trail, interrupt corrects the leds */
13946 				vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
13947 				vars->phy_flags &= ~PHY_SFP_TX_FAULT_FLAG;
13948 				/* Update link status in the shared memory */
13949 				bnx2x_update_mng(params, vars->link_status);
13950 			}
13951 		}
13952 	}
13953 }
13954 
bnx2x_fan_failure_det_req(struct bnx2x * bp,u32 shmem_base,u32 shmem2_base,u8 port)13955 u8 bnx2x_fan_failure_det_req(struct bnx2x *bp,
13956 			     u32 shmem_base,
13957 			     u32 shmem2_base,
13958 			     u8 port)
13959 {
13960 	u8 phy_index, fan_failure_det_req = 0;
13961 	struct bnx2x_phy phy;
13962 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
13963 	      phy_index++) {
13964 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13965 				       port, &phy)
13966 		    != 0) {
13967 			DP(NETIF_MSG_LINK, "populate phy failed\n");
13968 			return 0;
13969 		}
13970 		fan_failure_det_req |= (phy.flags &
13971 					FLAGS_FAN_FAILURE_DET_REQ);
13972 	}
13973 	return fan_failure_det_req;
13974 }
13975 
bnx2x_hw_reset_phy(struct link_params * params)13976 void bnx2x_hw_reset_phy(struct link_params *params)
13977 {
13978 	u8 phy_index;
13979 	struct bnx2x *bp = params->bp;
13980 	bnx2x_update_mng(params, 0);
13981 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
13982 		       (NIG_MASK_XGXS0_LINK_STATUS |
13983 			NIG_MASK_XGXS0_LINK10G |
13984 			NIG_MASK_SERDES0_LINK_STATUS |
13985 			NIG_MASK_MI_INT));
13986 
13987 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
13988 	      phy_index++) {
13989 		if (params->phy[phy_index].hw_reset) {
13990 			params->phy[phy_index].hw_reset(
13991 				&params->phy[phy_index],
13992 				params);
13993 			params->phy[phy_index] = phy_null;
13994 		}
13995 	}
13996 }
13997 
bnx2x_init_mod_abs_int(struct bnx2x * bp,struct link_vars * vars,u32 chip_id,u32 shmem_base,u32 shmem2_base,u8 port)13998 void bnx2x_init_mod_abs_int(struct bnx2x *bp, struct link_vars *vars,
13999 			    u32 chip_id, u32 shmem_base, u32 shmem2_base,
14000 			    u8 port)
14001 {
14002 	u8 gpio_num = 0xff, gpio_port = 0xff, phy_index;
14003 	u32 val;
14004 	u32 offset, aeu_mask, swap_val, swap_override, sync_offset;
14005 	if (CHIP_IS_E3(bp)) {
14006 		if (bnx2x_get_mod_abs_int_cfg(bp, chip_id,
14007 					      shmem_base,
14008 					      port,
14009 					      &gpio_num,
14010 					      &gpio_port) != 0)
14011 			return;
14012 	} else {
14013 		struct bnx2x_phy phy;
14014 		for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
14015 		      phy_index++) {
14016 			if (bnx2x_populate_phy(bp, phy_index, shmem_base,
14017 					       shmem2_base, port, &phy)
14018 			    != 0) {
14019 				DP(NETIF_MSG_LINK, "populate phy failed\n");
14020 				return;
14021 			}
14022 			if (phy.type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) {
14023 				gpio_num = MISC_REGISTERS_GPIO_3;
14024 				gpio_port = port;
14025 				break;
14026 			}
14027 		}
14028 	}
14029 
14030 	if (gpio_num == 0xff)
14031 		return;
14032 
14033 	/* Set GPIO3 to trigger SFP+ module insertion/removal */
14034 	bnx2x_set_gpio(bp, gpio_num, MISC_REGISTERS_GPIO_INPUT_HI_Z, gpio_port);
14035 
14036 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
14037 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
14038 	gpio_port ^= (swap_val && swap_override);
14039 
14040 	vars->aeu_int_mask = AEU_INPUTS_ATTN_BITS_GPIO0_FUNCTION_0 <<
14041 		(gpio_num + (gpio_port << 2));
14042 
14043 	sync_offset = shmem_base +
14044 		offsetof(struct shmem_region,
14045 			 dev_info.port_hw_config[port].aeu_int_mask);
14046 	REG_WR(bp, sync_offset, vars->aeu_int_mask);
14047 
14048 	DP(NETIF_MSG_LINK, "Setting MOD_ABS (GPIO%d_P%d) AEU to 0x%x\n",
14049 		       gpio_num, gpio_port, vars->aeu_int_mask);
14050 
14051 	if (port == 0)
14052 		offset = MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0;
14053 	else
14054 		offset = MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0;
14055 
14056 	/* Open appropriate AEU for interrupts */
14057 	aeu_mask = REG_RD(bp, offset);
14058 	aeu_mask |= vars->aeu_int_mask;
14059 	REG_WR(bp, offset, aeu_mask);
14060 
14061 	/* Enable the GPIO to trigger interrupt */
14062 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
14063 	val |= 1 << (gpio_num + (gpio_port << 2));
14064 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
14065 }
14066