1 /* bnx2x_main.c: Broadcom Everest network driver.
2  *
3  * Copyright (c) 2007-2010 Broadcom Corporation
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation.
8  *
9  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
10  * Written by: Eliezer Tamir
11  * Based on code from Michael Chan's bnx2 driver
12  * UDP CSUM errata workaround by Arik Gendelman
13  * Slowpath and fastpath rework by Vladislav Zolotarov
14  * Statistics and Link management by Yitchak Gertner
15  *
16  */
17 
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/kernel.h>
21 #include <linux/device.h>  /* for dev_info() */
22 #include <linux/timer.h>
23 #include <linux/errno.h>
24 #include <linux/ioport.h>
25 #include <linux/slab.h>
26 #include <linux/interrupt.h>
27 #include <linux/pci.h>
28 #include <linux/init.h>
29 #include <linux/netdevice.h>
30 #include <linux/etherdevice.h>
31 #include <linux/skbuff.h>
32 #include <linux/dma-mapping.h>
33 #include <linux/bitops.h>
34 #include <linux/irq.h>
35 #include <linux/delay.h>
36 #include <asm/byteorder.h>
37 #include <linux/time.h>
38 #include <linux/ethtool.h>
39 #include <linux/mii.h>
40 #include <linux/if_vlan.h>
41 #include <net/ip.h>
42 #include <net/tcp.h>
43 #include <net/checksum.h>
44 #include <net/ip6_checksum.h>
45 #include <linux/workqueue.h>
46 #include <linux/crc32.h>
47 #include <linux/crc32c.h>
48 #include <linux/prefetch.h>
49 #include <linux/zlib.h>
50 #include <linux/io.h>
51 #include <linux/stringify.h>
52 
53 #define BNX2X_MAIN
54 #include "bnx2x.h"
55 #include "bnx2x_init.h"
56 #include "bnx2x_init_ops.h"
57 #include "bnx2x_cmn.h"
58 #include "bnx2x_dcb.h"
59 
60 #include <linux/firmware.h>
61 #include "bnx2x_fw_file_hdr.h"
62 /* FW files */
63 #define FW_FILE_VERSION					\
64 	__stringify(BCM_5710_FW_MAJOR_VERSION) "."	\
65 	__stringify(BCM_5710_FW_MINOR_VERSION) "."	\
66 	__stringify(BCM_5710_FW_REVISION_VERSION) "."	\
67 	__stringify(BCM_5710_FW_ENGINEERING_VERSION)
68 #define FW_FILE_NAME_E1		"bnx2x/bnx2x-e1-" FW_FILE_VERSION ".fw"
69 #define FW_FILE_NAME_E1H	"bnx2x/bnx2x-e1h-" FW_FILE_VERSION ".fw"
70 #define FW_FILE_NAME_E2		"bnx2x/bnx2x-e2-" FW_FILE_VERSION ".fw"
71 
72 /* Time in jiffies before concluding the transmitter is hung */
73 #define TX_TIMEOUT		(5*HZ)
74 
75 static char version[] __devinitdata =
76 	"Broadcom NetXtreme II 5771x 10Gigabit Ethernet Driver "
77 	DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
78 
79 MODULE_AUTHOR("Eliezer Tamir");
80 MODULE_DESCRIPTION("Broadcom NetXtreme II "
81 		   "BCM57710/57711/57711E/57712/57712E Driver");
82 MODULE_LICENSE("GPL");
83 MODULE_VERSION(DRV_MODULE_VERSION);
84 MODULE_FIRMWARE(FW_FILE_NAME_E1);
85 MODULE_FIRMWARE(FW_FILE_NAME_E1H);
86 MODULE_FIRMWARE(FW_FILE_NAME_E2);
87 
88 static int multi_mode = 1;
89 module_param(multi_mode, int, 0);
90 MODULE_PARM_DESC(multi_mode, " Multi queue mode "
91 			     "(0 Disable; 1 Enable (default))");
92 
93 int num_queues;
94 module_param(num_queues, int, 0);
95 MODULE_PARM_DESC(num_queues, " Number of queues for multi_mode=1"
96 				" (default is as a number of CPUs)");
97 
98 static int disable_tpa;
99 module_param(disable_tpa, int, 0);
100 MODULE_PARM_DESC(disable_tpa, " Disable the TPA (LRO) feature");
101 
102 static int int_mode;
103 module_param(int_mode, int, 0);
104 MODULE_PARM_DESC(int_mode, " Force interrupt mode other then MSI-X "
105 				"(1 INT#x; 2 MSI)");
106 
107 static int dropless_fc;
108 module_param(dropless_fc, int, 0);
109 MODULE_PARM_DESC(dropless_fc, " Pause on exhausted host ring");
110 
111 static int poll;
112 module_param(poll, int, 0);
113 MODULE_PARM_DESC(poll, " Use polling (for debug)");
114 
115 static int mrrs = -1;
116 module_param(mrrs, int, 0);
117 MODULE_PARM_DESC(mrrs, " Force Max Read Req Size (0..3) (for debug)");
118 
119 static int debug;
120 module_param(debug, int, 0);
121 MODULE_PARM_DESC(debug, " Default debug msglevel");
122 
123 static struct workqueue_struct *bnx2x_wq;
124 
125 #ifdef BCM_CNIC
126 static u8 ALL_ENODE_MACS[] = {0x01, 0x10, 0x18, 0x01, 0x00, 0x01};
127 #endif
128 
129 enum bnx2x_board_type {
130 	BCM57710 = 0,
131 	BCM57711 = 1,
132 	BCM57711E = 2,
133 	BCM57712 = 3,
134 	BCM57712E = 4
135 };
136 
137 /* indexed by board_type, above */
138 static struct {
139 	char *name;
140 } board_info[] __devinitdata = {
141 	{ "Broadcom NetXtreme II BCM57710 XGb" },
142 	{ "Broadcom NetXtreme II BCM57711 XGb" },
143 	{ "Broadcom NetXtreme II BCM57711E XGb" },
144 	{ "Broadcom NetXtreme II BCM57712 XGb" },
145 	{ "Broadcom NetXtreme II BCM57712E XGb" }
146 };
147 
148 static DEFINE_PCI_DEVICE_TABLE(bnx2x_pci_tbl) = {
149 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57710), BCM57710 },
150 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711), BCM57711 },
151 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711E), BCM57711E },
152 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57712), BCM57712 },
153 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57712E), BCM57712E },
154 	{ 0 }
155 };
156 
157 MODULE_DEVICE_TABLE(pci, bnx2x_pci_tbl);
158 
159 /****************************************************************************
160 * General service functions
161 ****************************************************************************/
162 
__storm_memset_dma_mapping(struct bnx2x * bp,u32 addr,dma_addr_t mapping)163 static inline void __storm_memset_dma_mapping(struct bnx2x *bp,
164 				       u32 addr, dma_addr_t mapping)
165 {
166 	REG_WR(bp,  addr, U64_LO(mapping));
167 	REG_WR(bp,  addr + 4, U64_HI(mapping));
168 }
169 
__storm_memset_fill(struct bnx2x * bp,u32 addr,size_t size,u32 val)170 static inline void __storm_memset_fill(struct bnx2x *bp,
171 				       u32 addr, size_t size, u32 val)
172 {
173 	int i;
174 	for (i = 0; i < size/4; i++)
175 		REG_WR(bp,  addr + (i * 4), val);
176 }
177 
storm_memset_ustats_zero(struct bnx2x * bp,u8 port,u16 stat_id)178 static inline void storm_memset_ustats_zero(struct bnx2x *bp,
179 					    u8 port, u16 stat_id)
180 {
181 	size_t size = sizeof(struct ustorm_per_client_stats);
182 
183 	u32 addr = BAR_USTRORM_INTMEM +
184 			USTORM_PER_COUNTER_ID_STATS_OFFSET(port, stat_id);
185 
186 	__storm_memset_fill(bp, addr, size, 0);
187 }
188 
storm_memset_tstats_zero(struct bnx2x * bp,u8 port,u16 stat_id)189 static inline void storm_memset_tstats_zero(struct bnx2x *bp,
190 					    u8 port, u16 stat_id)
191 {
192 	size_t size = sizeof(struct tstorm_per_client_stats);
193 
194 	u32 addr = BAR_TSTRORM_INTMEM +
195 			TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, stat_id);
196 
197 	__storm_memset_fill(bp, addr, size, 0);
198 }
199 
storm_memset_xstats_zero(struct bnx2x * bp,u8 port,u16 stat_id)200 static inline void storm_memset_xstats_zero(struct bnx2x *bp,
201 					    u8 port, u16 stat_id)
202 {
203 	size_t size = sizeof(struct xstorm_per_client_stats);
204 
205 	u32 addr = BAR_XSTRORM_INTMEM +
206 			XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, stat_id);
207 
208 	__storm_memset_fill(bp, addr, size, 0);
209 }
210 
211 
storm_memset_spq_addr(struct bnx2x * bp,dma_addr_t mapping,u16 abs_fid)212 static inline void storm_memset_spq_addr(struct bnx2x *bp,
213 					 dma_addr_t mapping, u16 abs_fid)
214 {
215 	u32 addr = XSEM_REG_FAST_MEMORY +
216 			XSTORM_SPQ_PAGE_BASE_OFFSET(abs_fid);
217 
218 	__storm_memset_dma_mapping(bp, addr, mapping);
219 }
220 
storm_memset_ov(struct bnx2x * bp,u16 ov,u16 abs_fid)221 static inline void storm_memset_ov(struct bnx2x *bp, u16 ov, u16 abs_fid)
222 {
223 	REG_WR16(bp, BAR_XSTRORM_INTMEM + XSTORM_E1HOV_OFFSET(abs_fid), ov);
224 }
225 
storm_memset_func_cfg(struct bnx2x * bp,struct tstorm_eth_function_common_config * tcfg,u16 abs_fid)226 static inline void storm_memset_func_cfg(struct bnx2x *bp,
227 				struct tstorm_eth_function_common_config *tcfg,
228 				u16 abs_fid)
229 {
230 	size_t size = sizeof(struct tstorm_eth_function_common_config);
231 
232 	u32 addr = BAR_TSTRORM_INTMEM +
233 			TSTORM_FUNCTION_COMMON_CONFIG_OFFSET(abs_fid);
234 
235 	__storm_memset_struct(bp, addr, size, (u32 *)tcfg);
236 }
237 
storm_memset_xstats_flags(struct bnx2x * bp,struct stats_indication_flags * flags,u16 abs_fid)238 static inline void storm_memset_xstats_flags(struct bnx2x *bp,
239 				struct stats_indication_flags *flags,
240 				u16 abs_fid)
241 {
242 	size_t size = sizeof(struct stats_indication_flags);
243 
244 	u32 addr = BAR_XSTRORM_INTMEM + XSTORM_STATS_FLAGS_OFFSET(abs_fid);
245 
246 	__storm_memset_struct(bp, addr, size, (u32 *)flags);
247 }
248 
storm_memset_tstats_flags(struct bnx2x * bp,struct stats_indication_flags * flags,u16 abs_fid)249 static inline void storm_memset_tstats_flags(struct bnx2x *bp,
250 				struct stats_indication_flags *flags,
251 				u16 abs_fid)
252 {
253 	size_t size = sizeof(struct stats_indication_flags);
254 
255 	u32 addr = BAR_TSTRORM_INTMEM + TSTORM_STATS_FLAGS_OFFSET(abs_fid);
256 
257 	__storm_memset_struct(bp, addr, size, (u32 *)flags);
258 }
259 
storm_memset_ustats_flags(struct bnx2x * bp,struct stats_indication_flags * flags,u16 abs_fid)260 static inline void storm_memset_ustats_flags(struct bnx2x *bp,
261 				struct stats_indication_flags *flags,
262 				u16 abs_fid)
263 {
264 	size_t size = sizeof(struct stats_indication_flags);
265 
266 	u32 addr = BAR_USTRORM_INTMEM + USTORM_STATS_FLAGS_OFFSET(abs_fid);
267 
268 	__storm_memset_struct(bp, addr, size, (u32 *)flags);
269 }
270 
storm_memset_cstats_flags(struct bnx2x * bp,struct stats_indication_flags * flags,u16 abs_fid)271 static inline void storm_memset_cstats_flags(struct bnx2x *bp,
272 				struct stats_indication_flags *flags,
273 				u16 abs_fid)
274 {
275 	size_t size = sizeof(struct stats_indication_flags);
276 
277 	u32 addr = BAR_CSTRORM_INTMEM + CSTORM_STATS_FLAGS_OFFSET(abs_fid);
278 
279 	__storm_memset_struct(bp, addr, size, (u32 *)flags);
280 }
281 
storm_memset_xstats_addr(struct bnx2x * bp,dma_addr_t mapping,u16 abs_fid)282 static inline void storm_memset_xstats_addr(struct bnx2x *bp,
283 					   dma_addr_t mapping, u16 abs_fid)
284 {
285 	u32 addr = BAR_XSTRORM_INTMEM +
286 		XSTORM_ETH_STATS_QUERY_ADDR_OFFSET(abs_fid);
287 
288 	__storm_memset_dma_mapping(bp, addr, mapping);
289 }
290 
storm_memset_tstats_addr(struct bnx2x * bp,dma_addr_t mapping,u16 abs_fid)291 static inline void storm_memset_tstats_addr(struct bnx2x *bp,
292 					   dma_addr_t mapping, u16 abs_fid)
293 {
294 	u32 addr = BAR_TSTRORM_INTMEM +
295 		TSTORM_ETH_STATS_QUERY_ADDR_OFFSET(abs_fid);
296 
297 	__storm_memset_dma_mapping(bp, addr, mapping);
298 }
299 
storm_memset_ustats_addr(struct bnx2x * bp,dma_addr_t mapping,u16 abs_fid)300 static inline void storm_memset_ustats_addr(struct bnx2x *bp,
301 					   dma_addr_t mapping, u16 abs_fid)
302 {
303 	u32 addr = BAR_USTRORM_INTMEM +
304 		USTORM_ETH_STATS_QUERY_ADDR_OFFSET(abs_fid);
305 
306 	__storm_memset_dma_mapping(bp, addr, mapping);
307 }
308 
storm_memset_cstats_addr(struct bnx2x * bp,dma_addr_t mapping,u16 abs_fid)309 static inline void storm_memset_cstats_addr(struct bnx2x *bp,
310 					   dma_addr_t mapping, u16 abs_fid)
311 {
312 	u32 addr = BAR_CSTRORM_INTMEM +
313 		CSTORM_ETH_STATS_QUERY_ADDR_OFFSET(abs_fid);
314 
315 	__storm_memset_dma_mapping(bp, addr, mapping);
316 }
317 
storm_memset_vf_to_pf(struct bnx2x * bp,u16 abs_fid,u16 pf_id)318 static inline void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid,
319 					 u16 pf_id)
320 {
321 	REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid),
322 		pf_id);
323 	REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid),
324 		pf_id);
325 	REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid),
326 		pf_id);
327 	REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid),
328 		pf_id);
329 }
330 
storm_memset_func_en(struct bnx2x * bp,u16 abs_fid,u8 enable)331 static inline void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid,
332 					u8 enable)
333 {
334 	REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid),
335 		enable);
336 	REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid),
337 		enable);
338 	REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid),
339 		enable);
340 	REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid),
341 		enable);
342 }
343 
storm_memset_eq_data(struct bnx2x * bp,struct event_ring_data * eq_data,u16 pfid)344 static inline void storm_memset_eq_data(struct bnx2x *bp,
345 				struct event_ring_data *eq_data,
346 				u16 pfid)
347 {
348 	size_t size = sizeof(struct event_ring_data);
349 
350 	u32 addr = BAR_CSTRORM_INTMEM + CSTORM_EVENT_RING_DATA_OFFSET(pfid);
351 
352 	__storm_memset_struct(bp, addr, size, (u32 *)eq_data);
353 }
354 
storm_memset_eq_prod(struct bnx2x * bp,u16 eq_prod,u16 pfid)355 static inline void storm_memset_eq_prod(struct bnx2x *bp, u16 eq_prod,
356 					u16 pfid)
357 {
358 	u32 addr = BAR_CSTRORM_INTMEM + CSTORM_EVENT_RING_PROD_OFFSET(pfid);
359 	REG_WR16(bp, addr, eq_prod);
360 }
361 
storm_memset_hc_timeout(struct bnx2x * bp,u8 port,u16 fw_sb_id,u8 sb_index,u8 ticks)362 static inline void storm_memset_hc_timeout(struct bnx2x *bp, u8 port,
363 					     u16 fw_sb_id, u8 sb_index,
364 					     u8 ticks)
365 {
366 
367 	int index_offset = CHIP_IS_E2(bp) ?
368 		offsetof(struct hc_status_block_data_e2, index_data) :
369 		offsetof(struct hc_status_block_data_e1x, index_data);
370 	u32 addr = BAR_CSTRORM_INTMEM +
371 			CSTORM_STATUS_BLOCK_DATA_OFFSET(fw_sb_id) +
372 			index_offset +
373 			sizeof(struct hc_index_data)*sb_index +
374 			offsetof(struct hc_index_data, timeout);
375 	REG_WR8(bp, addr, ticks);
376 	DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d ticks %d\n",
377 			  port, fw_sb_id, sb_index, ticks);
378 }
storm_memset_hc_disable(struct bnx2x * bp,u8 port,u16 fw_sb_id,u8 sb_index,u8 disable)379 static inline void storm_memset_hc_disable(struct bnx2x *bp, u8 port,
380 					     u16 fw_sb_id, u8 sb_index,
381 					     u8 disable)
382 {
383 	u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT);
384 	int index_offset = CHIP_IS_E2(bp) ?
385 		offsetof(struct hc_status_block_data_e2, index_data) :
386 		offsetof(struct hc_status_block_data_e1x, index_data);
387 	u32 addr = BAR_CSTRORM_INTMEM +
388 			CSTORM_STATUS_BLOCK_DATA_OFFSET(fw_sb_id) +
389 			index_offset +
390 			sizeof(struct hc_index_data)*sb_index +
391 			offsetof(struct hc_index_data, flags);
392 	u16 flags = REG_RD16(bp, addr);
393 	/* clear and set */
394 	flags &= ~HC_INDEX_DATA_HC_ENABLED;
395 	flags |= enable_flag;
396 	REG_WR16(bp, addr, flags);
397 	DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d disable %d\n",
398 			  port, fw_sb_id, sb_index, disable);
399 }
400 
401 /* used only at init
402  * locking is done by mcp
403  */
bnx2x_reg_wr_ind(struct bnx2x * bp,u32 addr,u32 val)404 static void bnx2x_reg_wr_ind(struct bnx2x *bp, u32 addr, u32 val)
405 {
406 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS, addr);
407 	pci_write_config_dword(bp->pdev, PCICFG_GRC_DATA, val);
408 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
409 			       PCICFG_VENDOR_ID_OFFSET);
410 }
411 
bnx2x_reg_rd_ind(struct bnx2x * bp,u32 addr)412 static u32 bnx2x_reg_rd_ind(struct bnx2x *bp, u32 addr)
413 {
414 	u32 val;
415 
416 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS, addr);
417 	pci_read_config_dword(bp->pdev, PCICFG_GRC_DATA, &val);
418 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
419 			       PCICFG_VENDOR_ID_OFFSET);
420 
421 	return val;
422 }
423 
424 #define DMAE_DP_SRC_GRC		"grc src_addr [%08x]"
425 #define DMAE_DP_SRC_PCI		"pci src_addr [%x:%08x]"
426 #define DMAE_DP_DST_GRC		"grc dst_addr [%08x]"
427 #define DMAE_DP_DST_PCI		"pci dst_addr [%x:%08x]"
428 #define DMAE_DP_DST_NONE	"dst_addr [none]"
429 
bnx2x_dp_dmae(struct bnx2x * bp,struct dmae_command * dmae,int msglvl)430 static void bnx2x_dp_dmae(struct bnx2x *bp, struct dmae_command *dmae,
431 			  int msglvl)
432 {
433 	u32 src_type = dmae->opcode & DMAE_COMMAND_SRC;
434 
435 	switch (dmae->opcode & DMAE_COMMAND_DST) {
436 	case DMAE_CMD_DST_PCI:
437 		if (src_type == DMAE_CMD_SRC_PCI)
438 			DP(msglvl, "DMAE: opcode 0x%08x\n"
439 			   "src [%x:%08x], len [%d*4], dst [%x:%08x]\n"
440 			   "comp_addr [%x:%08x], comp_val 0x%08x\n",
441 			   dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
442 			   dmae->len, dmae->dst_addr_hi, dmae->dst_addr_lo,
443 			   dmae->comp_addr_hi, dmae->comp_addr_lo,
444 			   dmae->comp_val);
445 		else
446 			DP(msglvl, "DMAE: opcode 0x%08x\n"
447 			   "src [%08x], len [%d*4], dst [%x:%08x]\n"
448 			   "comp_addr [%x:%08x], comp_val 0x%08x\n",
449 			   dmae->opcode, dmae->src_addr_lo >> 2,
450 			   dmae->len, dmae->dst_addr_hi, dmae->dst_addr_lo,
451 			   dmae->comp_addr_hi, dmae->comp_addr_lo,
452 			   dmae->comp_val);
453 		break;
454 	case DMAE_CMD_DST_GRC:
455 		if (src_type == DMAE_CMD_SRC_PCI)
456 			DP(msglvl, "DMAE: opcode 0x%08x\n"
457 			   "src [%x:%08x], len [%d*4], dst_addr [%08x]\n"
458 			   "comp_addr [%x:%08x], comp_val 0x%08x\n",
459 			   dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
460 			   dmae->len, dmae->dst_addr_lo >> 2,
461 			   dmae->comp_addr_hi, dmae->comp_addr_lo,
462 			   dmae->comp_val);
463 		else
464 			DP(msglvl, "DMAE: opcode 0x%08x\n"
465 			   "src [%08x], len [%d*4], dst [%08x]\n"
466 			   "comp_addr [%x:%08x], comp_val 0x%08x\n",
467 			   dmae->opcode, dmae->src_addr_lo >> 2,
468 			   dmae->len, dmae->dst_addr_lo >> 2,
469 			   dmae->comp_addr_hi, dmae->comp_addr_lo,
470 			   dmae->comp_val);
471 		break;
472 	default:
473 		if (src_type == DMAE_CMD_SRC_PCI)
474 			DP(msglvl, "DMAE: opcode 0x%08x\n"
475 			   DP_LEVEL "src_addr [%x:%08x]  len [%d * 4]  "
476 				    "dst_addr [none]\n"
477 			   DP_LEVEL "comp_addr [%x:%08x]  comp_val 0x%08x\n",
478 			   dmae->opcode, dmae->src_addr_hi, dmae->src_addr_lo,
479 			   dmae->len, dmae->comp_addr_hi, dmae->comp_addr_lo,
480 			   dmae->comp_val);
481 		else
482 			DP(msglvl, "DMAE: opcode 0x%08x\n"
483 			   DP_LEVEL "src_addr [%08x]  len [%d * 4]  "
484 				    "dst_addr [none]\n"
485 			   DP_LEVEL "comp_addr [%x:%08x]  comp_val 0x%08x\n",
486 			   dmae->opcode, dmae->src_addr_lo >> 2,
487 			   dmae->len, dmae->comp_addr_hi, dmae->comp_addr_lo,
488 			   dmae->comp_val);
489 		break;
490 	}
491 
492 }
493 
494 const u32 dmae_reg_go_c[] = {
495 	DMAE_REG_GO_C0, DMAE_REG_GO_C1, DMAE_REG_GO_C2, DMAE_REG_GO_C3,
496 	DMAE_REG_GO_C4, DMAE_REG_GO_C5, DMAE_REG_GO_C6, DMAE_REG_GO_C7,
497 	DMAE_REG_GO_C8, DMAE_REG_GO_C9, DMAE_REG_GO_C10, DMAE_REG_GO_C11,
498 	DMAE_REG_GO_C12, DMAE_REG_GO_C13, DMAE_REG_GO_C14, DMAE_REG_GO_C15
499 };
500 
501 /* copy command into DMAE command memory and set DMAE command go */
bnx2x_post_dmae(struct bnx2x * bp,struct dmae_command * dmae,int idx)502 void bnx2x_post_dmae(struct bnx2x *bp, struct dmae_command *dmae, int idx)
503 {
504 	u32 cmd_offset;
505 	int i;
506 
507 	cmd_offset = (DMAE_REG_CMD_MEM + sizeof(struct dmae_command) * idx);
508 	for (i = 0; i < (sizeof(struct dmae_command)/4); i++) {
509 		REG_WR(bp, cmd_offset + i*4, *(((u32 *)dmae) + i));
510 
511 		DP(BNX2X_MSG_OFF, "DMAE cmd[%d].%d (0x%08x) : 0x%08x\n",
512 		   idx, i, cmd_offset + i*4, *(((u32 *)dmae) + i));
513 	}
514 	REG_WR(bp, dmae_reg_go_c[idx], 1);
515 }
516 
bnx2x_dmae_opcode_add_comp(u32 opcode,u8 comp_type)517 u32 bnx2x_dmae_opcode_add_comp(u32 opcode, u8 comp_type)
518 {
519 	return opcode | ((comp_type << DMAE_COMMAND_C_DST_SHIFT) |
520 			   DMAE_CMD_C_ENABLE);
521 }
522 
bnx2x_dmae_opcode_clr_src_reset(u32 opcode)523 u32 bnx2x_dmae_opcode_clr_src_reset(u32 opcode)
524 {
525 	return opcode & ~DMAE_CMD_SRC_RESET;
526 }
527 
bnx2x_dmae_opcode(struct bnx2x * bp,u8 src_type,u8 dst_type,bool with_comp,u8 comp_type)528 u32 bnx2x_dmae_opcode(struct bnx2x *bp, u8 src_type, u8 dst_type,
529 			     bool with_comp, u8 comp_type)
530 {
531 	u32 opcode = 0;
532 
533 	opcode |= ((src_type << DMAE_COMMAND_SRC_SHIFT) |
534 		   (dst_type << DMAE_COMMAND_DST_SHIFT));
535 
536 	opcode |= (DMAE_CMD_SRC_RESET | DMAE_CMD_DST_RESET);
537 
538 	opcode |= (BP_PORT(bp) ? DMAE_CMD_PORT_1 : DMAE_CMD_PORT_0);
539 	opcode |= ((BP_E1HVN(bp) << DMAE_CMD_E1HVN_SHIFT) |
540 		   (BP_E1HVN(bp) << DMAE_COMMAND_DST_VN_SHIFT));
541 	opcode |= (DMAE_COM_SET_ERR << DMAE_COMMAND_ERR_POLICY_SHIFT);
542 
543 #ifdef __BIG_ENDIAN
544 	opcode |= DMAE_CMD_ENDIANITY_B_DW_SWAP;
545 #else
546 	opcode |= DMAE_CMD_ENDIANITY_DW_SWAP;
547 #endif
548 	if (with_comp)
549 		opcode = bnx2x_dmae_opcode_add_comp(opcode, comp_type);
550 	return opcode;
551 }
552 
bnx2x_prep_dmae_with_comp(struct bnx2x * bp,struct dmae_command * dmae,u8 src_type,u8 dst_type)553 static void bnx2x_prep_dmae_with_comp(struct bnx2x *bp,
554 				      struct dmae_command *dmae,
555 				      u8 src_type, u8 dst_type)
556 {
557 	memset(dmae, 0, sizeof(struct dmae_command));
558 
559 	/* set the opcode */
560 	dmae->opcode = bnx2x_dmae_opcode(bp, src_type, dst_type,
561 					 true, DMAE_COMP_PCI);
562 
563 	/* fill in the completion parameters */
564 	dmae->comp_addr_lo = U64_LO(bnx2x_sp_mapping(bp, wb_comp));
565 	dmae->comp_addr_hi = U64_HI(bnx2x_sp_mapping(bp, wb_comp));
566 	dmae->comp_val = DMAE_COMP_VAL;
567 }
568 
569 /* issue a dmae command over the init-channel and wailt for completion */
bnx2x_issue_dmae_with_comp(struct bnx2x * bp,struct dmae_command * dmae)570 static int bnx2x_issue_dmae_with_comp(struct bnx2x *bp,
571 				      struct dmae_command *dmae)
572 {
573 	u32 *wb_comp = bnx2x_sp(bp, wb_comp);
574 	int cnt = CHIP_REV_IS_SLOW(bp) ? (400000) : 40;
575 	int rc = 0;
576 
577 	DP(BNX2X_MSG_OFF, "data before [0x%08x 0x%08x 0x%08x 0x%08x]\n",
578 	   bp->slowpath->wb_data[0], bp->slowpath->wb_data[1],
579 	   bp->slowpath->wb_data[2], bp->slowpath->wb_data[3]);
580 
581 	/* lock the dmae channel */
582 	spin_lock_bh(&bp->dmae_lock);
583 
584 	/* reset completion */
585 	*wb_comp = 0;
586 
587 	/* post the command on the channel used for initializations */
588 	bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp));
589 
590 	/* wait for completion */
591 	udelay(5);
592 	while ((*wb_comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) {
593 		DP(BNX2X_MSG_OFF, "wb_comp 0x%08x\n", *wb_comp);
594 
595 		if (!cnt) {
596 			BNX2X_ERR("DMAE timeout!\n");
597 			rc = DMAE_TIMEOUT;
598 			goto unlock;
599 		}
600 		cnt--;
601 		udelay(50);
602 	}
603 	if (*wb_comp & DMAE_PCI_ERR_FLAG) {
604 		BNX2X_ERR("DMAE PCI error!\n");
605 		rc = DMAE_PCI_ERROR;
606 	}
607 
608 	DP(BNX2X_MSG_OFF, "data after [0x%08x 0x%08x 0x%08x 0x%08x]\n",
609 	   bp->slowpath->wb_data[0], bp->slowpath->wb_data[1],
610 	   bp->slowpath->wb_data[2], bp->slowpath->wb_data[3]);
611 
612 unlock:
613 	spin_unlock_bh(&bp->dmae_lock);
614 	return rc;
615 }
616 
bnx2x_write_dmae(struct bnx2x * bp,dma_addr_t dma_addr,u32 dst_addr,u32 len32)617 void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
618 		      u32 len32)
619 {
620 	struct dmae_command dmae;
621 
622 	if (!bp->dmae_ready) {
623 		u32 *data = bnx2x_sp(bp, wb_data[0]);
624 
625 		DP(BNX2X_MSG_OFF, "DMAE is not ready (dst_addr %08x  len32 %d)"
626 		   "  using indirect\n", dst_addr, len32);
627 		bnx2x_init_ind_wr(bp, dst_addr, data, len32);
628 		return;
629 	}
630 
631 	/* set opcode and fixed command fields */
632 	bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_GRC);
633 
634 	/* fill in addresses and len */
635 	dmae.src_addr_lo = U64_LO(dma_addr);
636 	dmae.src_addr_hi = U64_HI(dma_addr);
637 	dmae.dst_addr_lo = dst_addr >> 2;
638 	dmae.dst_addr_hi = 0;
639 	dmae.len = len32;
640 
641 	bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
642 
643 	/* issue the command and wait for completion */
644 	bnx2x_issue_dmae_with_comp(bp, &dmae);
645 }
646 
bnx2x_read_dmae(struct bnx2x * bp,u32 src_addr,u32 len32)647 void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
648 {
649 	struct dmae_command dmae;
650 
651 	if (!bp->dmae_ready) {
652 		u32 *data = bnx2x_sp(bp, wb_data[0]);
653 		int i;
654 
655 		DP(BNX2X_MSG_OFF, "DMAE is not ready (src_addr %08x  len32 %d)"
656 		   "  using indirect\n", src_addr, len32);
657 		for (i = 0; i < len32; i++)
658 			data[i] = bnx2x_reg_rd_ind(bp, src_addr + i*4);
659 		return;
660 	}
661 
662 	/* set opcode and fixed command fields */
663 	bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_GRC, DMAE_DST_PCI);
664 
665 	/* fill in addresses and len */
666 	dmae.src_addr_lo = src_addr >> 2;
667 	dmae.src_addr_hi = 0;
668 	dmae.dst_addr_lo = U64_LO(bnx2x_sp_mapping(bp, wb_data));
669 	dmae.dst_addr_hi = U64_HI(bnx2x_sp_mapping(bp, wb_data));
670 	dmae.len = len32;
671 
672 	bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_OFF);
673 
674 	/* issue the command and wait for completion */
675 	bnx2x_issue_dmae_with_comp(bp, &dmae);
676 }
677 
bnx2x_write_dmae_phys_len(struct bnx2x * bp,dma_addr_t phys_addr,u32 addr,u32 len)678 static void bnx2x_write_dmae_phys_len(struct bnx2x *bp, dma_addr_t phys_addr,
679 				      u32 addr, u32 len)
680 {
681 	int dmae_wr_max = DMAE_LEN32_WR_MAX(bp);
682 	int offset = 0;
683 
684 	while (len > dmae_wr_max) {
685 		bnx2x_write_dmae(bp, phys_addr + offset,
686 				 addr + offset, dmae_wr_max);
687 		offset += dmae_wr_max * 4;
688 		len -= dmae_wr_max;
689 	}
690 
691 	bnx2x_write_dmae(bp, phys_addr + offset, addr + offset, len);
692 }
693 
694 /* used only for slowpath so not inlined */
bnx2x_wb_wr(struct bnx2x * bp,int reg,u32 val_hi,u32 val_lo)695 static void bnx2x_wb_wr(struct bnx2x *bp, int reg, u32 val_hi, u32 val_lo)
696 {
697 	u32 wb_write[2];
698 
699 	wb_write[0] = val_hi;
700 	wb_write[1] = val_lo;
701 	REG_WR_DMAE(bp, reg, wb_write, 2);
702 }
703 
704 #ifdef USE_WB_RD
bnx2x_wb_rd(struct bnx2x * bp,int reg)705 static u64 bnx2x_wb_rd(struct bnx2x *bp, int reg)
706 {
707 	u32 wb_data[2];
708 
709 	REG_RD_DMAE(bp, reg, wb_data, 2);
710 
711 	return HILO_U64(wb_data[0], wb_data[1]);
712 }
713 #endif
714 
bnx2x_mc_assert(struct bnx2x * bp)715 static int bnx2x_mc_assert(struct bnx2x *bp)
716 {
717 	char last_idx;
718 	int i, rc = 0;
719 	u32 row0, row1, row2, row3;
720 
721 	/* XSTORM */
722 	last_idx = REG_RD8(bp, BAR_XSTRORM_INTMEM +
723 			   XSTORM_ASSERT_LIST_INDEX_OFFSET);
724 	if (last_idx)
725 		BNX2X_ERR("XSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
726 
727 	/* print the asserts */
728 	for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
729 
730 		row0 = REG_RD(bp, BAR_XSTRORM_INTMEM +
731 			      XSTORM_ASSERT_LIST_OFFSET(i));
732 		row1 = REG_RD(bp, BAR_XSTRORM_INTMEM +
733 			      XSTORM_ASSERT_LIST_OFFSET(i) + 4);
734 		row2 = REG_RD(bp, BAR_XSTRORM_INTMEM +
735 			      XSTORM_ASSERT_LIST_OFFSET(i) + 8);
736 		row3 = REG_RD(bp, BAR_XSTRORM_INTMEM +
737 			      XSTORM_ASSERT_LIST_OFFSET(i) + 12);
738 
739 		if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
740 			BNX2X_ERR("XSTORM_ASSERT_INDEX 0x%x = 0x%08x"
741 				  " 0x%08x 0x%08x 0x%08x\n",
742 				  i, row3, row2, row1, row0);
743 			rc++;
744 		} else {
745 			break;
746 		}
747 	}
748 
749 	/* TSTORM */
750 	last_idx = REG_RD8(bp, BAR_TSTRORM_INTMEM +
751 			   TSTORM_ASSERT_LIST_INDEX_OFFSET);
752 	if (last_idx)
753 		BNX2X_ERR("TSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
754 
755 	/* print the asserts */
756 	for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
757 
758 		row0 = REG_RD(bp, BAR_TSTRORM_INTMEM +
759 			      TSTORM_ASSERT_LIST_OFFSET(i));
760 		row1 = REG_RD(bp, BAR_TSTRORM_INTMEM +
761 			      TSTORM_ASSERT_LIST_OFFSET(i) + 4);
762 		row2 = REG_RD(bp, BAR_TSTRORM_INTMEM +
763 			      TSTORM_ASSERT_LIST_OFFSET(i) + 8);
764 		row3 = REG_RD(bp, BAR_TSTRORM_INTMEM +
765 			      TSTORM_ASSERT_LIST_OFFSET(i) + 12);
766 
767 		if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
768 			BNX2X_ERR("TSTORM_ASSERT_INDEX 0x%x = 0x%08x"
769 				  " 0x%08x 0x%08x 0x%08x\n",
770 				  i, row3, row2, row1, row0);
771 			rc++;
772 		} else {
773 			break;
774 		}
775 	}
776 
777 	/* CSTORM */
778 	last_idx = REG_RD8(bp, BAR_CSTRORM_INTMEM +
779 			   CSTORM_ASSERT_LIST_INDEX_OFFSET);
780 	if (last_idx)
781 		BNX2X_ERR("CSTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
782 
783 	/* print the asserts */
784 	for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
785 
786 		row0 = REG_RD(bp, BAR_CSTRORM_INTMEM +
787 			      CSTORM_ASSERT_LIST_OFFSET(i));
788 		row1 = REG_RD(bp, BAR_CSTRORM_INTMEM +
789 			      CSTORM_ASSERT_LIST_OFFSET(i) + 4);
790 		row2 = REG_RD(bp, BAR_CSTRORM_INTMEM +
791 			      CSTORM_ASSERT_LIST_OFFSET(i) + 8);
792 		row3 = REG_RD(bp, BAR_CSTRORM_INTMEM +
793 			      CSTORM_ASSERT_LIST_OFFSET(i) + 12);
794 
795 		if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
796 			BNX2X_ERR("CSTORM_ASSERT_INDEX 0x%x = 0x%08x"
797 				  " 0x%08x 0x%08x 0x%08x\n",
798 				  i, row3, row2, row1, row0);
799 			rc++;
800 		} else {
801 			break;
802 		}
803 	}
804 
805 	/* USTORM */
806 	last_idx = REG_RD8(bp, BAR_USTRORM_INTMEM +
807 			   USTORM_ASSERT_LIST_INDEX_OFFSET);
808 	if (last_idx)
809 		BNX2X_ERR("USTORM_ASSERT_LIST_INDEX 0x%x\n", last_idx);
810 
811 	/* print the asserts */
812 	for (i = 0; i < STROM_ASSERT_ARRAY_SIZE; i++) {
813 
814 		row0 = REG_RD(bp, BAR_USTRORM_INTMEM +
815 			      USTORM_ASSERT_LIST_OFFSET(i));
816 		row1 = REG_RD(bp, BAR_USTRORM_INTMEM +
817 			      USTORM_ASSERT_LIST_OFFSET(i) + 4);
818 		row2 = REG_RD(bp, BAR_USTRORM_INTMEM +
819 			      USTORM_ASSERT_LIST_OFFSET(i) + 8);
820 		row3 = REG_RD(bp, BAR_USTRORM_INTMEM +
821 			      USTORM_ASSERT_LIST_OFFSET(i) + 12);
822 
823 		if (row0 != COMMON_ASM_INVALID_ASSERT_OPCODE) {
824 			BNX2X_ERR("USTORM_ASSERT_INDEX 0x%x = 0x%08x"
825 				  " 0x%08x 0x%08x 0x%08x\n",
826 				  i, row3, row2, row1, row0);
827 			rc++;
828 		} else {
829 			break;
830 		}
831 	}
832 
833 	return rc;
834 }
835 
bnx2x_fw_dump(struct bnx2x * bp)836 static void bnx2x_fw_dump(struct bnx2x *bp)
837 {
838 	u32 addr;
839 	u32 mark, offset;
840 	__be32 data[9];
841 	int word;
842 	u32 trace_shmem_base;
843 	if (BP_NOMCP(bp)) {
844 		BNX2X_ERR("NO MCP - can not dump\n");
845 		return;
846 	}
847 
848 	if (BP_PATH(bp) == 0)
849 		trace_shmem_base = bp->common.shmem_base;
850 	else
851 		trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr);
852 	addr = trace_shmem_base - 0x0800 + 4;
853 	mark = REG_RD(bp, addr);
854 	mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
855 			+ ((mark + 0x3) & ~0x3) - 0x08000000;
856 	pr_err("begin fw dump (mark 0x%x)\n", mark);
857 
858 	pr_err("");
859 	for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) {
860 		for (word = 0; word < 8; word++)
861 			data[word] = htonl(REG_RD(bp, offset + 4*word));
862 		data[8] = 0x0;
863 		pr_cont("%s", (char *)data);
864 	}
865 	for (offset = addr + 4; offset <= mark; offset += 0x8*4) {
866 		for (word = 0; word < 8; word++)
867 			data[word] = htonl(REG_RD(bp, offset + 4*word));
868 		data[8] = 0x0;
869 		pr_cont("%s", (char *)data);
870 	}
871 	pr_err("end of fw dump\n");
872 }
873 
bnx2x_panic_dump(struct bnx2x * bp)874 void bnx2x_panic_dump(struct bnx2x *bp)
875 {
876 	int i;
877 	u16 j;
878 	struct hc_sp_status_block_data sp_sb_data;
879 	int func = BP_FUNC(bp);
880 #ifdef BNX2X_STOP_ON_ERROR
881 	u16 start = 0, end = 0;
882 #endif
883 
884 	bp->stats_state = STATS_STATE_DISABLED;
885 	DP(BNX2X_MSG_STATS, "stats_state - DISABLED\n");
886 
887 	BNX2X_ERR("begin crash dump -----------------\n");
888 
889 	/* Indices */
890 	/* Common */
891 	BNX2X_ERR("def_idx(0x%x)  def_att_idx(0x%x)  attn_state(0x%x)"
892 		  "  spq_prod_idx(0x%x)\n",
893 		  bp->def_idx, bp->def_att_idx,
894 		  bp->attn_state, bp->spq_prod_idx);
895 	BNX2X_ERR("DSB: attn bits(0x%x)  ack(0x%x)  id(0x%x)  idx(0x%x)\n",
896 		  bp->def_status_blk->atten_status_block.attn_bits,
897 		  bp->def_status_blk->atten_status_block.attn_bits_ack,
898 		  bp->def_status_blk->atten_status_block.status_block_id,
899 		  bp->def_status_blk->atten_status_block.attn_bits_index);
900 	BNX2X_ERR("     def (");
901 	for (i = 0; i < HC_SP_SB_MAX_INDICES; i++)
902 		pr_cont("0x%x%s",
903 		       bp->def_status_blk->sp_sb.index_values[i],
904 		       (i == HC_SP_SB_MAX_INDICES - 1) ? ")  " : " ");
905 
906 	for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
907 		*((u32 *)&sp_sb_data + i) = REG_RD(bp, BAR_CSTRORM_INTMEM +
908 			CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
909 			i*sizeof(u32));
910 
911 	pr_cont("igu_sb_id(0x%x)  igu_seg_id (0x%x) "
912 			 "pf_id(0x%x)  vnic_id(0x%x)  "
913 			 "vf_id(0x%x)  vf_valid (0x%x)\n",
914 	       sp_sb_data.igu_sb_id,
915 	       sp_sb_data.igu_seg_id,
916 	       sp_sb_data.p_func.pf_id,
917 	       sp_sb_data.p_func.vnic_id,
918 	       sp_sb_data.p_func.vf_id,
919 	       sp_sb_data.p_func.vf_valid);
920 
921 
922 	for_each_eth_queue(bp, i) {
923 		struct bnx2x_fastpath *fp = &bp->fp[i];
924 		int loop;
925 		struct hc_status_block_data_e2 sb_data_e2;
926 		struct hc_status_block_data_e1x sb_data_e1x;
927 		struct hc_status_block_sm  *hc_sm_p =
928 			CHIP_IS_E2(bp) ?
929 			sb_data_e2.common.state_machine :
930 			sb_data_e1x.common.state_machine;
931 		struct hc_index_data *hc_index_p =
932 			CHIP_IS_E2(bp) ?
933 			sb_data_e2.index_data :
934 			sb_data_e1x.index_data;
935 		int data_size;
936 		u32 *sb_data_p;
937 
938 		/* Rx */
939 		BNX2X_ERR("fp%d: rx_bd_prod(0x%x)  rx_bd_cons(0x%x)"
940 			  "  rx_comp_prod(0x%x)"
941 			  "  rx_comp_cons(0x%x)  *rx_cons_sb(0x%x)\n",
942 			  i, fp->rx_bd_prod, fp->rx_bd_cons,
943 			  fp->rx_comp_prod,
944 			  fp->rx_comp_cons, le16_to_cpu(*fp->rx_cons_sb));
945 		BNX2X_ERR("     rx_sge_prod(0x%x)  last_max_sge(0x%x)"
946 			  "  fp_hc_idx(0x%x)\n",
947 			  fp->rx_sge_prod, fp->last_max_sge,
948 			  le16_to_cpu(fp->fp_hc_idx));
949 
950 		/* Tx */
951 		BNX2X_ERR("fp%d: tx_pkt_prod(0x%x)  tx_pkt_cons(0x%x)"
952 			  "  tx_bd_prod(0x%x)  tx_bd_cons(0x%x)"
953 			  "  *tx_cons_sb(0x%x)\n",
954 			  i, fp->tx_pkt_prod, fp->tx_pkt_cons, fp->tx_bd_prod,
955 			  fp->tx_bd_cons, le16_to_cpu(*fp->tx_cons_sb));
956 
957 		loop = CHIP_IS_E2(bp) ?
958 			HC_SB_MAX_INDICES_E2 : HC_SB_MAX_INDICES_E1X;
959 
960 		/* host sb data */
961 
962 #ifdef BCM_CNIC
963 		if (IS_FCOE_FP(fp))
964 			continue;
965 #endif
966 		BNX2X_ERR("     run indexes (");
967 		for (j = 0; j < HC_SB_MAX_SM; j++)
968 			pr_cont("0x%x%s",
969 			       fp->sb_running_index[j],
970 			       (j == HC_SB_MAX_SM - 1) ? ")" : " ");
971 
972 		BNX2X_ERR("     indexes (");
973 		for (j = 0; j < loop; j++)
974 			pr_cont("0x%x%s",
975 			       fp->sb_index_values[j],
976 			       (j == loop - 1) ? ")" : " ");
977 		/* fw sb data */
978 		data_size = CHIP_IS_E2(bp) ?
979 			sizeof(struct hc_status_block_data_e2) :
980 			sizeof(struct hc_status_block_data_e1x);
981 		data_size /= sizeof(u32);
982 		sb_data_p = CHIP_IS_E2(bp) ?
983 			(u32 *)&sb_data_e2 :
984 			(u32 *)&sb_data_e1x;
985 		/* copy sb data in here */
986 		for (j = 0; j < data_size; j++)
987 			*(sb_data_p + j) = REG_RD(bp, BAR_CSTRORM_INTMEM +
988 				CSTORM_STATUS_BLOCK_DATA_OFFSET(fp->fw_sb_id) +
989 				j * sizeof(u32));
990 
991 		if (CHIP_IS_E2(bp)) {
992 			pr_cont("pf_id(0x%x)  vf_id (0x%x)  vf_valid(0x%x) "
993 				"vnic_id(0x%x)  same_igu_sb_1b(0x%x)\n",
994 				sb_data_e2.common.p_func.pf_id,
995 				sb_data_e2.common.p_func.vf_id,
996 				sb_data_e2.common.p_func.vf_valid,
997 				sb_data_e2.common.p_func.vnic_id,
998 				sb_data_e2.common.same_igu_sb_1b);
999 		} else {
1000 			pr_cont("pf_id(0x%x)  vf_id (0x%x)  vf_valid(0x%x) "
1001 				"vnic_id(0x%x)  same_igu_sb_1b(0x%x)\n",
1002 				sb_data_e1x.common.p_func.pf_id,
1003 				sb_data_e1x.common.p_func.vf_id,
1004 				sb_data_e1x.common.p_func.vf_valid,
1005 				sb_data_e1x.common.p_func.vnic_id,
1006 				sb_data_e1x.common.same_igu_sb_1b);
1007 		}
1008 
1009 		/* SB_SMs data */
1010 		for (j = 0; j < HC_SB_MAX_SM; j++) {
1011 			pr_cont("SM[%d] __flags (0x%x) "
1012 			       "igu_sb_id (0x%x)  igu_seg_id(0x%x) "
1013 			       "time_to_expire (0x%x) "
1014 			       "timer_value(0x%x)\n", j,
1015 			       hc_sm_p[j].__flags,
1016 			       hc_sm_p[j].igu_sb_id,
1017 			       hc_sm_p[j].igu_seg_id,
1018 			       hc_sm_p[j].time_to_expire,
1019 			       hc_sm_p[j].timer_value);
1020 		}
1021 
1022 		/* Indecies data */
1023 		for (j = 0; j < loop; j++) {
1024 			pr_cont("INDEX[%d] flags (0x%x) "
1025 					 "timeout (0x%x)\n", j,
1026 			       hc_index_p[j].flags,
1027 			       hc_index_p[j].timeout);
1028 		}
1029 	}
1030 
1031 #ifdef BNX2X_STOP_ON_ERROR
1032 	/* Rings */
1033 	/* Rx */
1034 	for_each_rx_queue(bp, i) {
1035 		struct bnx2x_fastpath *fp = &bp->fp[i];
1036 
1037 		start = RX_BD(le16_to_cpu(*fp->rx_cons_sb) - 10);
1038 		end = RX_BD(le16_to_cpu(*fp->rx_cons_sb) + 503);
1039 		for (j = start; j != end; j = RX_BD(j + 1)) {
1040 			u32 *rx_bd = (u32 *)&fp->rx_desc_ring[j];
1041 			struct sw_rx_bd *sw_bd = &fp->rx_buf_ring[j];
1042 
1043 			BNX2X_ERR("fp%d: rx_bd[%x]=[%x:%x]  sw_bd=[%p]\n",
1044 				  i, j, rx_bd[1], rx_bd[0], sw_bd->skb);
1045 		}
1046 
1047 		start = RX_SGE(fp->rx_sge_prod);
1048 		end = RX_SGE(fp->last_max_sge);
1049 		for (j = start; j != end; j = RX_SGE(j + 1)) {
1050 			u32 *rx_sge = (u32 *)&fp->rx_sge_ring[j];
1051 			struct sw_rx_page *sw_page = &fp->rx_page_ring[j];
1052 
1053 			BNX2X_ERR("fp%d: rx_sge[%x]=[%x:%x]  sw_page=[%p]\n",
1054 				  i, j, rx_sge[1], rx_sge[0], sw_page->page);
1055 		}
1056 
1057 		start = RCQ_BD(fp->rx_comp_cons - 10);
1058 		end = RCQ_BD(fp->rx_comp_cons + 503);
1059 		for (j = start; j != end; j = RCQ_BD(j + 1)) {
1060 			u32 *cqe = (u32 *)&fp->rx_comp_ring[j];
1061 
1062 			BNX2X_ERR("fp%d: cqe[%x]=[%x:%x:%x:%x]\n",
1063 				  i, j, cqe[0], cqe[1], cqe[2], cqe[3]);
1064 		}
1065 	}
1066 
1067 	/* Tx */
1068 	for_each_tx_queue(bp, i) {
1069 		struct bnx2x_fastpath *fp = &bp->fp[i];
1070 
1071 		start = TX_BD(le16_to_cpu(*fp->tx_cons_sb) - 10);
1072 		end = TX_BD(le16_to_cpu(*fp->tx_cons_sb) + 245);
1073 		for (j = start; j != end; j = TX_BD(j + 1)) {
1074 			struct sw_tx_bd *sw_bd = &fp->tx_buf_ring[j];
1075 
1076 			BNX2X_ERR("fp%d: packet[%x]=[%p,%x]\n",
1077 				  i, j, sw_bd->skb, sw_bd->first_bd);
1078 		}
1079 
1080 		start = TX_BD(fp->tx_bd_cons - 10);
1081 		end = TX_BD(fp->tx_bd_cons + 254);
1082 		for (j = start; j != end; j = TX_BD(j + 1)) {
1083 			u32 *tx_bd = (u32 *)&fp->tx_desc_ring[j];
1084 
1085 			BNX2X_ERR("fp%d: tx_bd[%x]=[%x:%x:%x:%x]\n",
1086 				  i, j, tx_bd[0], tx_bd[1], tx_bd[2], tx_bd[3]);
1087 		}
1088 	}
1089 #endif
1090 	bnx2x_fw_dump(bp);
1091 	bnx2x_mc_assert(bp);
1092 	BNX2X_ERR("end crash dump -----------------\n");
1093 }
1094 
bnx2x_hc_int_enable(struct bnx2x * bp)1095 static void bnx2x_hc_int_enable(struct bnx2x *bp)
1096 {
1097 	int port = BP_PORT(bp);
1098 	u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
1099 	u32 val = REG_RD(bp, addr);
1100 	int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
1101 	int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
1102 
1103 	if (msix) {
1104 		val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
1105 			 HC_CONFIG_0_REG_INT_LINE_EN_0);
1106 		val |= (HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
1107 			HC_CONFIG_0_REG_ATTN_BIT_EN_0);
1108 	} else if (msi) {
1109 		val &= ~HC_CONFIG_0_REG_INT_LINE_EN_0;
1110 		val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
1111 			HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
1112 			HC_CONFIG_0_REG_ATTN_BIT_EN_0);
1113 	} else {
1114 		val |= (HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
1115 			HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
1116 			HC_CONFIG_0_REG_INT_LINE_EN_0 |
1117 			HC_CONFIG_0_REG_ATTN_BIT_EN_0);
1118 
1119 		if (!CHIP_IS_E1(bp)) {
1120 			DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
1121 			   val, port, addr);
1122 
1123 			REG_WR(bp, addr, val);
1124 
1125 			val &= ~HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0;
1126 		}
1127 	}
1128 
1129 	if (CHIP_IS_E1(bp))
1130 		REG_WR(bp, HC_REG_INT_MASK + port*4, 0x1FFFF);
1131 
1132 	DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)  mode %s\n",
1133 	   val, port, addr, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
1134 
1135 	REG_WR(bp, addr, val);
1136 	/*
1137 	 * Ensure that HC_CONFIG is written before leading/trailing edge config
1138 	 */
1139 	mmiowb();
1140 	barrier();
1141 
1142 	if (!CHIP_IS_E1(bp)) {
1143 		/* init leading/trailing edge */
1144 		if (IS_MF(bp)) {
1145 			val = (0xee0f | (1 << (BP_E1HVN(bp) + 4)));
1146 			if (bp->port.pmf)
1147 				/* enable nig and gpio3 attention */
1148 				val |= 0x1100;
1149 		} else
1150 			val = 0xffff;
1151 
1152 		REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
1153 		REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
1154 	}
1155 
1156 	/* Make sure that interrupts are indeed enabled from here on */
1157 	mmiowb();
1158 }
1159 
bnx2x_igu_int_enable(struct bnx2x * bp)1160 static void bnx2x_igu_int_enable(struct bnx2x *bp)
1161 {
1162 	u32 val;
1163 	int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
1164 	int msi = (bp->flags & USING_MSI_FLAG) ? 1 : 0;
1165 
1166 	val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
1167 
1168 	if (msix) {
1169 		val &= ~(IGU_PF_CONF_INT_LINE_EN |
1170 			 IGU_PF_CONF_SINGLE_ISR_EN);
1171 		val |= (IGU_PF_CONF_FUNC_EN |
1172 			IGU_PF_CONF_MSI_MSIX_EN |
1173 			IGU_PF_CONF_ATTN_BIT_EN);
1174 	} else if (msi) {
1175 		val &= ~IGU_PF_CONF_INT_LINE_EN;
1176 		val |= (IGU_PF_CONF_FUNC_EN |
1177 			IGU_PF_CONF_MSI_MSIX_EN |
1178 			IGU_PF_CONF_ATTN_BIT_EN |
1179 			IGU_PF_CONF_SINGLE_ISR_EN);
1180 	} else {
1181 		val &= ~IGU_PF_CONF_MSI_MSIX_EN;
1182 		val |= (IGU_PF_CONF_FUNC_EN |
1183 			IGU_PF_CONF_INT_LINE_EN |
1184 			IGU_PF_CONF_ATTN_BIT_EN |
1185 			IGU_PF_CONF_SINGLE_ISR_EN);
1186 	}
1187 
1188 	DP(NETIF_MSG_INTR, "write 0x%x to IGU  mode %s\n",
1189 	   val, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));
1190 
1191 	REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
1192 
1193 	barrier();
1194 
1195 	/* init leading/trailing edge */
1196 	if (IS_MF(bp)) {
1197 		val = (0xee0f | (1 << (BP_E1HVN(bp) + 4)));
1198 		if (bp->port.pmf)
1199 			/* enable nig and gpio3 attention */
1200 			val |= 0x1100;
1201 	} else
1202 		val = 0xffff;
1203 
1204 	REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
1205 	REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
1206 
1207 	/* Make sure that interrupts are indeed enabled from here on */
1208 	mmiowb();
1209 }
1210 
bnx2x_int_enable(struct bnx2x * bp)1211 void bnx2x_int_enable(struct bnx2x *bp)
1212 {
1213 	if (bp->common.int_block == INT_BLOCK_HC)
1214 		bnx2x_hc_int_enable(bp);
1215 	else
1216 		bnx2x_igu_int_enable(bp);
1217 }
1218 
bnx2x_hc_int_disable(struct bnx2x * bp)1219 static void bnx2x_hc_int_disable(struct bnx2x *bp)
1220 {
1221 	int port = BP_PORT(bp);
1222 	u32 addr = port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
1223 	u32 val = REG_RD(bp, addr);
1224 
1225 	/*
1226 	 * in E1 we must use only PCI configuration space to disable
1227 	 * MSI/MSIX capablility
1228 	 * It's forbitten to disable IGU_PF_CONF_MSI_MSIX_EN in HC block
1229 	 */
1230 	if (CHIP_IS_E1(bp)) {
1231 		/*  Since IGU_PF_CONF_MSI_MSIX_EN still always on
1232 		 *  Use mask register to prevent from HC sending interrupts
1233 		 *  after we exit the function
1234 		 */
1235 		REG_WR(bp, HC_REG_INT_MASK + port*4, 0);
1236 
1237 		val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
1238 			 HC_CONFIG_0_REG_INT_LINE_EN_0 |
1239 			 HC_CONFIG_0_REG_ATTN_BIT_EN_0);
1240 	} else
1241 		val &= ~(HC_CONFIG_0_REG_SINGLE_ISR_EN_0 |
1242 			 HC_CONFIG_0_REG_MSI_MSIX_INT_EN_0 |
1243 			 HC_CONFIG_0_REG_INT_LINE_EN_0 |
1244 			 HC_CONFIG_0_REG_ATTN_BIT_EN_0);
1245 
1246 	DP(NETIF_MSG_INTR, "write %x to HC %d (addr 0x%x)\n",
1247 	   val, port, addr);
1248 
1249 	/* flush all outstanding writes */
1250 	mmiowb();
1251 
1252 	REG_WR(bp, addr, val);
1253 	if (REG_RD(bp, addr) != val)
1254 		BNX2X_ERR("BUG! proper val not read from IGU!\n");
1255 }
1256 
bnx2x_igu_int_disable(struct bnx2x * bp)1257 static void bnx2x_igu_int_disable(struct bnx2x *bp)
1258 {
1259 	u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
1260 
1261 	val &= ~(IGU_PF_CONF_MSI_MSIX_EN |
1262 		 IGU_PF_CONF_INT_LINE_EN |
1263 		 IGU_PF_CONF_ATTN_BIT_EN);
1264 
1265 	DP(NETIF_MSG_INTR, "write %x to IGU\n", val);
1266 
1267 	/* flush all outstanding writes */
1268 	mmiowb();
1269 
1270 	REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
1271 	if (REG_RD(bp, IGU_REG_PF_CONFIGURATION) != val)
1272 		BNX2X_ERR("BUG! proper val not read from IGU!\n");
1273 }
1274 
bnx2x_int_disable(struct bnx2x * bp)1275 static void bnx2x_int_disable(struct bnx2x *bp)
1276 {
1277 	if (bp->common.int_block == INT_BLOCK_HC)
1278 		bnx2x_hc_int_disable(bp);
1279 	else
1280 		bnx2x_igu_int_disable(bp);
1281 }
1282 
bnx2x_int_disable_sync(struct bnx2x * bp,int disable_hw)1283 void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw)
1284 {
1285 	int msix = (bp->flags & USING_MSIX_FLAG) ? 1 : 0;
1286 	int i, offset;
1287 
1288 	/* disable interrupt handling */
1289 	atomic_inc(&bp->intr_sem);
1290 	smp_wmb(); /* Ensure that bp->intr_sem update is SMP-safe */
1291 
1292 	if (disable_hw)
1293 		/* prevent the HW from sending interrupts */
1294 		bnx2x_int_disable(bp);
1295 
1296 	/* make sure all ISRs are done */
1297 	if (msix) {
1298 		synchronize_irq(bp->msix_table[0].vector);
1299 		offset = 1;
1300 #ifdef BCM_CNIC
1301 		offset++;
1302 #endif
1303 		for_each_eth_queue(bp, i)
1304 			synchronize_irq(bp->msix_table[i + offset].vector);
1305 	} else
1306 		synchronize_irq(bp->pdev->irq);
1307 
1308 	/* make sure sp_task is not running */
1309 	cancel_delayed_work(&bp->sp_task);
1310 	flush_workqueue(bnx2x_wq);
1311 }
1312 
1313 /* fast path */
1314 
1315 /*
1316  * General service functions
1317  */
1318 
1319 /* Return true if succeeded to acquire the lock */
bnx2x_trylock_hw_lock(struct bnx2x * bp,u32 resource)1320 static bool bnx2x_trylock_hw_lock(struct bnx2x *bp, u32 resource)
1321 {
1322 	u32 lock_status;
1323 	u32 resource_bit = (1 << resource);
1324 	int func = BP_FUNC(bp);
1325 	u32 hw_lock_control_reg;
1326 
1327 	DP(NETIF_MSG_HW, "Trying to take a lock on resource %d\n", resource);
1328 
1329 	/* Validating that the resource is within range */
1330 	if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
1331 		DP(NETIF_MSG_HW,
1332 		   "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
1333 		   resource, HW_LOCK_MAX_RESOURCE_VALUE);
1334 		return false;
1335 	}
1336 
1337 	if (func <= 5)
1338 		hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
1339 	else
1340 		hw_lock_control_reg =
1341 				(MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
1342 
1343 	/* Try to acquire the lock */
1344 	REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
1345 	lock_status = REG_RD(bp, hw_lock_control_reg);
1346 	if (lock_status & resource_bit)
1347 		return true;
1348 
1349 	DP(NETIF_MSG_HW, "Failed to get a lock on resource %d\n", resource);
1350 	return false;
1351 }
1352 
1353 #ifdef BCM_CNIC
1354 static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid);
1355 #endif
1356 
bnx2x_sp_event(struct bnx2x_fastpath * fp,union eth_rx_cqe * rr_cqe)1357 void bnx2x_sp_event(struct bnx2x_fastpath *fp,
1358 			   union eth_rx_cqe *rr_cqe)
1359 {
1360 	struct bnx2x *bp = fp->bp;
1361 	int cid = SW_CID(rr_cqe->ramrod_cqe.conn_and_cmd_data);
1362 	int command = CQE_CMD(rr_cqe->ramrod_cqe.conn_and_cmd_data);
1363 
1364 	DP(BNX2X_MSG_SP,
1365 	   "fp %d  cid %d  got ramrod #%d  state is %x  type is %d\n",
1366 	   fp->index, cid, command, bp->state,
1367 	   rr_cqe->ramrod_cqe.ramrod_type);
1368 
1369 	switch (command | fp->state) {
1370 	case (RAMROD_CMD_ID_ETH_CLIENT_SETUP | BNX2X_FP_STATE_OPENING):
1371 		DP(NETIF_MSG_IFUP, "got MULTI[%d] setup ramrod\n", cid);
1372 		fp->state = BNX2X_FP_STATE_OPEN;
1373 		break;
1374 
1375 	case (RAMROD_CMD_ID_ETH_HALT | BNX2X_FP_STATE_HALTING):
1376 		DP(NETIF_MSG_IFDOWN, "got MULTI[%d] halt ramrod\n", cid);
1377 		fp->state = BNX2X_FP_STATE_HALTED;
1378 		break;
1379 
1380 	case (RAMROD_CMD_ID_ETH_TERMINATE | BNX2X_FP_STATE_TERMINATING):
1381 		DP(NETIF_MSG_IFDOWN, "got MULTI[%d] teminate ramrod\n", cid);
1382 		fp->state = BNX2X_FP_STATE_TERMINATED;
1383 		break;
1384 
1385 	default:
1386 		BNX2X_ERR("unexpected MC reply (%d)  "
1387 			  "fp[%d] state is %x\n",
1388 			  command, fp->index, fp->state);
1389 		break;
1390 	}
1391 
1392 	smp_mb__before_atomic_inc();
1393 	atomic_inc(&bp->cq_spq_left);
1394 	/* push the change in fp->state and towards the memory */
1395 	smp_wmb();
1396 
1397 	return;
1398 }
1399 
bnx2x_interrupt(int irq,void * dev_instance)1400 irqreturn_t bnx2x_interrupt(int irq, void *dev_instance)
1401 {
1402 	struct bnx2x *bp = netdev_priv(dev_instance);
1403 	u16 status = bnx2x_ack_int(bp);
1404 	u16 mask;
1405 	int i;
1406 
1407 	/* Return here if interrupt is shared and it's not for us */
1408 	if (unlikely(status == 0)) {
1409 		DP(NETIF_MSG_INTR, "not our interrupt!\n");
1410 		return IRQ_NONE;
1411 	}
1412 	DP(NETIF_MSG_INTR, "got an interrupt  status 0x%x\n", status);
1413 
1414 	/* Return here if interrupt is disabled */
1415 	if (unlikely(atomic_read(&bp->intr_sem) != 0)) {
1416 		DP(NETIF_MSG_INTR, "called but intr_sem not 0, returning\n");
1417 		return IRQ_HANDLED;
1418 	}
1419 
1420 #ifdef BNX2X_STOP_ON_ERROR
1421 	if (unlikely(bp->panic))
1422 		return IRQ_HANDLED;
1423 #endif
1424 
1425 	for_each_eth_queue(bp, i) {
1426 		struct bnx2x_fastpath *fp = &bp->fp[i];
1427 
1428 		mask = 0x2 << (fp->index + CNIC_CONTEXT_USE);
1429 		if (status & mask) {
1430 			/* Handle Rx and Tx according to SB id */
1431 			prefetch(fp->rx_cons_sb);
1432 			prefetch(fp->tx_cons_sb);
1433 			prefetch(&fp->sb_running_index[SM_RX_ID]);
1434 			napi_schedule(&bnx2x_fp(bp, fp->index, napi));
1435 			status &= ~mask;
1436 		}
1437 	}
1438 
1439 #ifdef BCM_CNIC
1440 	mask = 0x2;
1441 	if (status & (mask | 0x1)) {
1442 		struct cnic_ops *c_ops = NULL;
1443 
1444 		rcu_read_lock();
1445 		c_ops = rcu_dereference(bp->cnic_ops);
1446 		if (c_ops)
1447 			c_ops->cnic_handler(bp->cnic_data, NULL);
1448 		rcu_read_unlock();
1449 
1450 		status &= ~mask;
1451 	}
1452 #endif
1453 
1454 	if (unlikely(status & 0x1)) {
1455 		queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
1456 
1457 		status &= ~0x1;
1458 		if (!status)
1459 			return IRQ_HANDLED;
1460 	}
1461 
1462 	if (unlikely(status))
1463 		DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
1464 		   status);
1465 
1466 	return IRQ_HANDLED;
1467 }
1468 
1469 /* end of fast path */
1470 
1471 
1472 /* Link */
1473 
1474 /*
1475  * General service functions
1476  */
1477 
bnx2x_acquire_hw_lock(struct bnx2x * bp,u32 resource)1478 int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource)
1479 {
1480 	u32 lock_status;
1481 	u32 resource_bit = (1 << resource);
1482 	int func = BP_FUNC(bp);
1483 	u32 hw_lock_control_reg;
1484 	int cnt;
1485 
1486 	/* Validating that the resource is within range */
1487 	if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
1488 		DP(NETIF_MSG_HW,
1489 		   "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
1490 		   resource, HW_LOCK_MAX_RESOURCE_VALUE);
1491 		return -EINVAL;
1492 	}
1493 
1494 	if (func <= 5) {
1495 		hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
1496 	} else {
1497 		hw_lock_control_reg =
1498 				(MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
1499 	}
1500 
1501 	/* Validating that the resource is not already taken */
1502 	lock_status = REG_RD(bp, hw_lock_control_reg);
1503 	if (lock_status & resource_bit) {
1504 		DP(NETIF_MSG_HW, "lock_status 0x%x  resource_bit 0x%x\n",
1505 		   lock_status, resource_bit);
1506 		return -EEXIST;
1507 	}
1508 
1509 	/* Try for 5 second every 5ms */
1510 	for (cnt = 0; cnt < 1000; cnt++) {
1511 		/* Try to acquire the lock */
1512 		REG_WR(bp, hw_lock_control_reg + 4, resource_bit);
1513 		lock_status = REG_RD(bp, hw_lock_control_reg);
1514 		if (lock_status & resource_bit)
1515 			return 0;
1516 
1517 		msleep(5);
1518 	}
1519 	DP(NETIF_MSG_HW, "Timeout\n");
1520 	return -EAGAIN;
1521 }
1522 
bnx2x_release_hw_lock(struct bnx2x * bp,u32 resource)1523 int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource)
1524 {
1525 	u32 lock_status;
1526 	u32 resource_bit = (1 << resource);
1527 	int func = BP_FUNC(bp);
1528 	u32 hw_lock_control_reg;
1529 
1530 	DP(NETIF_MSG_HW, "Releasing a lock on resource %d\n", resource);
1531 
1532 	/* Validating that the resource is within range */
1533 	if (resource > HW_LOCK_MAX_RESOURCE_VALUE) {
1534 		DP(NETIF_MSG_HW,
1535 		   "resource(0x%x) > HW_LOCK_MAX_RESOURCE_VALUE(0x%x)\n",
1536 		   resource, HW_LOCK_MAX_RESOURCE_VALUE);
1537 		return -EINVAL;
1538 	}
1539 
1540 	if (func <= 5) {
1541 		hw_lock_control_reg = (MISC_REG_DRIVER_CONTROL_1 + func*8);
1542 	} else {
1543 		hw_lock_control_reg =
1544 				(MISC_REG_DRIVER_CONTROL_7 + (func - 6)*8);
1545 	}
1546 
1547 	/* Validating that the resource is currently taken */
1548 	lock_status = REG_RD(bp, hw_lock_control_reg);
1549 	if (!(lock_status & resource_bit)) {
1550 		DP(NETIF_MSG_HW, "lock_status 0x%x  resource_bit 0x%x\n",
1551 		   lock_status, resource_bit);
1552 		return -EFAULT;
1553 	}
1554 
1555 	REG_WR(bp, hw_lock_control_reg, resource_bit);
1556 	return 0;
1557 }
1558 
1559 
bnx2x_get_gpio(struct bnx2x * bp,int gpio_num,u8 port)1560 int bnx2x_get_gpio(struct bnx2x *bp, int gpio_num, u8 port)
1561 {
1562 	/* The GPIO should be swapped if swap register is set and active */
1563 	int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
1564 			 REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
1565 	int gpio_shift = gpio_num +
1566 			(gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
1567 	u32 gpio_mask = (1 << gpio_shift);
1568 	u32 gpio_reg;
1569 	int value;
1570 
1571 	if (gpio_num > MISC_REGISTERS_GPIO_3) {
1572 		BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
1573 		return -EINVAL;
1574 	}
1575 
1576 	/* read GPIO value */
1577 	gpio_reg = REG_RD(bp, MISC_REG_GPIO);
1578 
1579 	/* get the requested pin value */
1580 	if ((gpio_reg & gpio_mask) == gpio_mask)
1581 		value = 1;
1582 	else
1583 		value = 0;
1584 
1585 	DP(NETIF_MSG_LINK, "pin %d  value 0x%x\n", gpio_num, value);
1586 
1587 	return value;
1588 }
1589 
bnx2x_set_gpio(struct bnx2x * bp,int gpio_num,u32 mode,u8 port)1590 int bnx2x_set_gpio(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
1591 {
1592 	/* The GPIO should be swapped if swap register is set and active */
1593 	int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
1594 			 REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
1595 	int gpio_shift = gpio_num +
1596 			(gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
1597 	u32 gpio_mask = (1 << gpio_shift);
1598 	u32 gpio_reg;
1599 
1600 	if (gpio_num > MISC_REGISTERS_GPIO_3) {
1601 		BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
1602 		return -EINVAL;
1603 	}
1604 
1605 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
1606 	/* read GPIO and mask except the float bits */
1607 	gpio_reg = (REG_RD(bp, MISC_REG_GPIO) & MISC_REGISTERS_GPIO_FLOAT);
1608 
1609 	switch (mode) {
1610 	case MISC_REGISTERS_GPIO_OUTPUT_LOW:
1611 		DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output low\n",
1612 		   gpio_num, gpio_shift);
1613 		/* clear FLOAT and set CLR */
1614 		gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
1615 		gpio_reg |=  (gpio_mask << MISC_REGISTERS_GPIO_CLR_POS);
1616 		break;
1617 
1618 	case MISC_REGISTERS_GPIO_OUTPUT_HIGH:
1619 		DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> output high\n",
1620 		   gpio_num, gpio_shift);
1621 		/* clear FLOAT and set SET */
1622 		gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
1623 		gpio_reg |=  (gpio_mask << MISC_REGISTERS_GPIO_SET_POS);
1624 		break;
1625 
1626 	case MISC_REGISTERS_GPIO_INPUT_HI_Z:
1627 		DP(NETIF_MSG_LINK, "Set GPIO %d (shift %d) -> input\n",
1628 		   gpio_num, gpio_shift);
1629 		/* set FLOAT */
1630 		gpio_reg |= (gpio_mask << MISC_REGISTERS_GPIO_FLOAT_POS);
1631 		break;
1632 
1633 	default:
1634 		break;
1635 	}
1636 
1637 	REG_WR(bp, MISC_REG_GPIO, gpio_reg);
1638 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
1639 
1640 	return 0;
1641 }
1642 
bnx2x_set_gpio_int(struct bnx2x * bp,int gpio_num,u32 mode,u8 port)1643 int bnx2x_set_gpio_int(struct bnx2x *bp, int gpio_num, u32 mode, u8 port)
1644 {
1645 	/* The GPIO should be swapped if swap register is set and active */
1646 	int gpio_port = (REG_RD(bp, NIG_REG_PORT_SWAP) &&
1647 			 REG_RD(bp, NIG_REG_STRAP_OVERRIDE)) ^ port;
1648 	int gpio_shift = gpio_num +
1649 			(gpio_port ? MISC_REGISTERS_GPIO_PORT_SHIFT : 0);
1650 	u32 gpio_mask = (1 << gpio_shift);
1651 	u32 gpio_reg;
1652 
1653 	if (gpio_num > MISC_REGISTERS_GPIO_3) {
1654 		BNX2X_ERR("Invalid GPIO %d\n", gpio_num);
1655 		return -EINVAL;
1656 	}
1657 
1658 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
1659 	/* read GPIO int */
1660 	gpio_reg = REG_RD(bp, MISC_REG_GPIO_INT);
1661 
1662 	switch (mode) {
1663 	case MISC_REGISTERS_GPIO_INT_OUTPUT_CLR:
1664 		DP(NETIF_MSG_LINK, "Clear GPIO INT %d (shift %d) -> "
1665 				   "output low\n", gpio_num, gpio_shift);
1666 		/* clear SET and set CLR */
1667 		gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
1668 		gpio_reg |=  (gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
1669 		break;
1670 
1671 	case MISC_REGISTERS_GPIO_INT_OUTPUT_SET:
1672 		DP(NETIF_MSG_LINK, "Set GPIO INT %d (shift %d) -> "
1673 				   "output high\n", gpio_num, gpio_shift);
1674 		/* clear CLR and set SET */
1675 		gpio_reg &= ~(gpio_mask << MISC_REGISTERS_GPIO_INT_CLR_POS);
1676 		gpio_reg |=  (gpio_mask << MISC_REGISTERS_GPIO_INT_SET_POS);
1677 		break;
1678 
1679 	default:
1680 		break;
1681 	}
1682 
1683 	REG_WR(bp, MISC_REG_GPIO_INT, gpio_reg);
1684 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
1685 
1686 	return 0;
1687 }
1688 
bnx2x_set_spio(struct bnx2x * bp,int spio_num,u32 mode)1689 static int bnx2x_set_spio(struct bnx2x *bp, int spio_num, u32 mode)
1690 {
1691 	u32 spio_mask = (1 << spio_num);
1692 	u32 spio_reg;
1693 
1694 	if ((spio_num < MISC_REGISTERS_SPIO_4) ||
1695 	    (spio_num > MISC_REGISTERS_SPIO_7)) {
1696 		BNX2X_ERR("Invalid SPIO %d\n", spio_num);
1697 		return -EINVAL;
1698 	}
1699 
1700 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
1701 	/* read SPIO and mask except the float bits */
1702 	spio_reg = (REG_RD(bp, MISC_REG_SPIO) & MISC_REGISTERS_SPIO_FLOAT);
1703 
1704 	switch (mode) {
1705 	case MISC_REGISTERS_SPIO_OUTPUT_LOW:
1706 		DP(NETIF_MSG_LINK, "Set SPIO %d -> output low\n", spio_num);
1707 		/* clear FLOAT and set CLR */
1708 		spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
1709 		spio_reg |=  (spio_mask << MISC_REGISTERS_SPIO_CLR_POS);
1710 		break;
1711 
1712 	case MISC_REGISTERS_SPIO_OUTPUT_HIGH:
1713 		DP(NETIF_MSG_LINK, "Set SPIO %d -> output high\n", spio_num);
1714 		/* clear FLOAT and set SET */
1715 		spio_reg &= ~(spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
1716 		spio_reg |=  (spio_mask << MISC_REGISTERS_SPIO_SET_POS);
1717 		break;
1718 
1719 	case MISC_REGISTERS_SPIO_INPUT_HI_Z:
1720 		DP(NETIF_MSG_LINK, "Set SPIO %d -> input\n", spio_num);
1721 		/* set FLOAT */
1722 		spio_reg |= (spio_mask << MISC_REGISTERS_SPIO_FLOAT_POS);
1723 		break;
1724 
1725 	default:
1726 		break;
1727 	}
1728 
1729 	REG_WR(bp, MISC_REG_SPIO, spio_reg);
1730 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_SPIO);
1731 
1732 	return 0;
1733 }
1734 
bnx2x_get_link_cfg_idx(struct bnx2x * bp)1735 int bnx2x_get_link_cfg_idx(struct bnx2x *bp)
1736 {
1737 	u32 sel_phy_idx = 0;
1738 	if (bp->link_vars.link_up) {
1739 		sel_phy_idx = EXT_PHY1;
1740 		/* In case link is SERDES, check if the EXT_PHY2 is the one */
1741 		if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) &&
1742 		    (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE))
1743 			sel_phy_idx = EXT_PHY2;
1744 	} else {
1745 
1746 		switch (bnx2x_phy_selection(&bp->link_params)) {
1747 		case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
1748 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
1749 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
1750 		       sel_phy_idx = EXT_PHY1;
1751 		       break;
1752 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
1753 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
1754 		       sel_phy_idx = EXT_PHY2;
1755 		       break;
1756 		}
1757 	}
1758 	/*
1759 	* The selected actived PHY is always after swapping (in case PHY
1760 	* swapping is enabled). So when swapping is enabled, we need to reverse
1761 	* the configuration
1762 	*/
1763 
1764 	if (bp->link_params.multi_phy_config &
1765 	    PORT_HW_CFG_PHY_SWAPPED_ENABLED) {
1766 		if (sel_phy_idx == EXT_PHY1)
1767 			sel_phy_idx = EXT_PHY2;
1768 		else if (sel_phy_idx == EXT_PHY2)
1769 			sel_phy_idx = EXT_PHY1;
1770 	}
1771 	return LINK_CONFIG_IDX(sel_phy_idx);
1772 }
1773 
bnx2x_calc_fc_adv(struct bnx2x * bp)1774 void bnx2x_calc_fc_adv(struct bnx2x *bp)
1775 {
1776 	u8 cfg_idx = bnx2x_get_link_cfg_idx(bp);
1777 	switch (bp->link_vars.ieee_fc &
1778 		MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK) {
1779 	case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE:
1780 		bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
1781 						   ADVERTISED_Pause);
1782 		break;
1783 
1784 	case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH:
1785 		bp->port.advertising[cfg_idx] |= (ADVERTISED_Asym_Pause |
1786 						  ADVERTISED_Pause);
1787 		break;
1788 
1789 	case MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC:
1790 		bp->port.advertising[cfg_idx] |= ADVERTISED_Asym_Pause;
1791 		break;
1792 
1793 	default:
1794 		bp->port.advertising[cfg_idx] &= ~(ADVERTISED_Asym_Pause |
1795 						   ADVERTISED_Pause);
1796 		break;
1797 	}
1798 }
1799 
bnx2x_initial_phy_init(struct bnx2x * bp,int load_mode)1800 u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
1801 {
1802 	if (!BP_NOMCP(bp)) {
1803 		u8 rc;
1804 		int cfx_idx = bnx2x_get_link_cfg_idx(bp);
1805 		u16 req_line_speed = bp->link_params.req_line_speed[cfx_idx];
1806 		/* Initialize link parameters structure variables */
1807 		/* It is recommended to turn off RX FC for jumbo frames
1808 		   for better performance */
1809 		if ((CHIP_IS_E1x(bp)) && (bp->dev->mtu > 5000))
1810 			bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_TX;
1811 		else
1812 			bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
1813 
1814 		bnx2x_acquire_phy_lock(bp);
1815 
1816 		if (load_mode == LOAD_DIAG) {
1817 			bp->link_params.loopback_mode = LOOPBACK_XGXS;
1818 			bp->link_params.req_line_speed[cfx_idx] = SPEED_10000;
1819 		}
1820 
1821 		rc = bnx2x_phy_init(&bp->link_params, &bp->link_vars);
1822 
1823 		bnx2x_release_phy_lock(bp);
1824 
1825 		bnx2x_calc_fc_adv(bp);
1826 
1827 		if (CHIP_REV_IS_SLOW(bp) && bp->link_vars.link_up) {
1828 			bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
1829 			bnx2x_link_report(bp);
1830 		}
1831 		bp->link_params.req_line_speed[cfx_idx] = req_line_speed;
1832 		return rc;
1833 	}
1834 	BNX2X_ERR("Bootcode is missing - can not initialize link\n");
1835 	return -EINVAL;
1836 }
1837 
bnx2x_link_set(struct bnx2x * bp)1838 void bnx2x_link_set(struct bnx2x *bp)
1839 {
1840 	if (!BP_NOMCP(bp)) {
1841 		bnx2x_acquire_phy_lock(bp);
1842 		bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
1843 		bnx2x_phy_init(&bp->link_params, &bp->link_vars);
1844 		bnx2x_release_phy_lock(bp);
1845 
1846 		bnx2x_calc_fc_adv(bp);
1847 	} else
1848 		BNX2X_ERR("Bootcode is missing - can not set link\n");
1849 }
1850 
bnx2x__link_reset(struct bnx2x * bp)1851 static void bnx2x__link_reset(struct bnx2x *bp)
1852 {
1853 	if (!BP_NOMCP(bp)) {
1854 		bnx2x_acquire_phy_lock(bp);
1855 		bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
1856 		bnx2x_release_phy_lock(bp);
1857 	} else
1858 		BNX2X_ERR("Bootcode is missing - can not reset link\n");
1859 }
1860 
bnx2x_link_test(struct bnx2x * bp,u8 is_serdes)1861 u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
1862 {
1863 	u8 rc = 0;
1864 
1865 	if (!BP_NOMCP(bp)) {
1866 		bnx2x_acquire_phy_lock(bp);
1867 		rc = bnx2x_test_link(&bp->link_params, &bp->link_vars,
1868 				     is_serdes);
1869 		bnx2x_release_phy_lock(bp);
1870 	} else
1871 		BNX2X_ERR("Bootcode is missing - can not test link\n");
1872 
1873 	return rc;
1874 }
1875 
bnx2x_init_port_minmax(struct bnx2x * bp)1876 static void bnx2x_init_port_minmax(struct bnx2x *bp)
1877 {
1878 	u32 r_param = bp->link_vars.line_speed / 8;
1879 	u32 fair_periodic_timeout_usec;
1880 	u32 t_fair;
1881 
1882 	memset(&(bp->cmng.rs_vars), 0,
1883 	       sizeof(struct rate_shaping_vars_per_port));
1884 	memset(&(bp->cmng.fair_vars), 0, sizeof(struct fairness_vars_per_port));
1885 
1886 	/* 100 usec in SDM ticks = 25 since each tick is 4 usec */
1887 	bp->cmng.rs_vars.rs_periodic_timeout = RS_PERIODIC_TIMEOUT_USEC / 4;
1888 
1889 	/* this is the threshold below which no timer arming will occur
1890 	   1.25 coefficient is for the threshold to be a little bigger
1891 	   than the real time, to compensate for timer in-accuracy */
1892 	bp->cmng.rs_vars.rs_threshold =
1893 				(RS_PERIODIC_TIMEOUT_USEC * r_param * 5) / 4;
1894 
1895 	/* resolution of fairness timer */
1896 	fair_periodic_timeout_usec = QM_ARB_BYTES / r_param;
1897 	/* for 10G it is 1000usec. for 1G it is 10000usec. */
1898 	t_fair = T_FAIR_COEF / bp->link_vars.line_speed;
1899 
1900 	/* this is the threshold below which we won't arm the timer anymore */
1901 	bp->cmng.fair_vars.fair_threshold = QM_ARB_BYTES;
1902 
1903 	/* we multiply by 1e3/8 to get bytes/msec.
1904 	   We don't want the credits to pass a credit
1905 	   of the t_fair*FAIR_MEM (algorithm resolution) */
1906 	bp->cmng.fair_vars.upper_bound = r_param * t_fair * FAIR_MEM;
1907 	/* since each tick is 4 usec */
1908 	bp->cmng.fair_vars.fairness_timeout = fair_periodic_timeout_usec / 4;
1909 }
1910 
1911 /* Calculates the sum of vn_min_rates.
1912    It's needed for further normalizing of the min_rates.
1913    Returns:
1914      sum of vn_min_rates.
1915        or
1916      0 - if all the min_rates are 0.
1917      In the later case fainess algorithm should be deactivated.
1918      If not all min_rates are zero then those that are zeroes will be set to 1.
1919  */
bnx2x_calc_vn_weight_sum(struct bnx2x * bp)1920 static void bnx2x_calc_vn_weight_sum(struct bnx2x *bp)
1921 {
1922 	int all_zero = 1;
1923 	int vn;
1924 
1925 	bp->vn_weight_sum = 0;
1926 	for (vn = VN_0; vn < E1HVN_MAX; vn++) {
1927 		u32 vn_cfg = bp->mf_config[vn];
1928 		u32 vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
1929 				   FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
1930 
1931 		/* Skip hidden vns */
1932 		if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE)
1933 			continue;
1934 
1935 		/* If min rate is zero - set it to 1 */
1936 		if (!vn_min_rate)
1937 			vn_min_rate = DEF_MIN_RATE;
1938 		else
1939 			all_zero = 0;
1940 
1941 		bp->vn_weight_sum += vn_min_rate;
1942 	}
1943 
1944 	/* ... only if all min rates are zeros - disable fairness */
1945 	if (all_zero) {
1946 		bp->cmng.flags.cmng_enables &=
1947 					~CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
1948 		DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
1949 		   "  fairness will be disabled\n");
1950 	} else
1951 		bp->cmng.flags.cmng_enables |=
1952 					CMNG_FLAGS_PER_PORT_FAIRNESS_VN;
1953 }
1954 
bnx2x_init_vn_minmax(struct bnx2x * bp,int vn)1955 static void bnx2x_init_vn_minmax(struct bnx2x *bp, int vn)
1956 {
1957 	struct rate_shaping_vars_per_vn m_rs_vn;
1958 	struct fairness_vars_per_vn m_fair_vn;
1959 	u32 vn_cfg = bp->mf_config[vn];
1960 	int func = 2*vn + BP_PORT(bp);
1961 	u16 vn_min_rate, vn_max_rate;
1962 	int i;
1963 
1964 	/* If function is hidden - set min and max to zeroes */
1965 	if (vn_cfg & FUNC_MF_CFG_FUNC_HIDE) {
1966 		vn_min_rate = 0;
1967 		vn_max_rate = 0;
1968 
1969 	} else {
1970 		u32 maxCfg = bnx2x_extract_max_cfg(bp, vn_cfg);
1971 
1972 		vn_min_rate = ((vn_cfg & FUNC_MF_CFG_MIN_BW_MASK) >>
1973 				FUNC_MF_CFG_MIN_BW_SHIFT) * 100;
1974 		/* If fairness is enabled (not all min rates are zeroes) and
1975 		   if current min rate is zero - set it to 1.
1976 		   This is a requirement of the algorithm. */
1977 		if (bp->vn_weight_sum && (vn_min_rate == 0))
1978 			vn_min_rate = DEF_MIN_RATE;
1979 
1980 		if (IS_MF_SI(bp))
1981 			/* maxCfg in percents of linkspeed */
1982 			vn_max_rate = (bp->link_vars.line_speed * maxCfg) / 100;
1983 		else
1984 			/* maxCfg is absolute in 100Mb units */
1985 			vn_max_rate = maxCfg * 100;
1986 	}
1987 
1988 	DP(NETIF_MSG_IFUP,
1989 	   "func %d: vn_min_rate %d  vn_max_rate %d  vn_weight_sum %d\n",
1990 	   func, vn_min_rate, vn_max_rate, bp->vn_weight_sum);
1991 
1992 	memset(&m_rs_vn, 0, sizeof(struct rate_shaping_vars_per_vn));
1993 	memset(&m_fair_vn, 0, sizeof(struct fairness_vars_per_vn));
1994 
1995 	/* global vn counter - maximal Mbps for this vn */
1996 	m_rs_vn.vn_counter.rate = vn_max_rate;
1997 
1998 	/* quota - number of bytes transmitted in this period */
1999 	m_rs_vn.vn_counter.quota =
2000 				(vn_max_rate * RS_PERIODIC_TIMEOUT_USEC) / 8;
2001 
2002 	if (bp->vn_weight_sum) {
2003 		/* credit for each period of the fairness algorithm:
2004 		   number of bytes in T_FAIR (the vn share the port rate).
2005 		   vn_weight_sum should not be larger than 10000, thus
2006 		   T_FAIR_COEF / (8 * vn_weight_sum) will always be greater
2007 		   than zero */
2008 		m_fair_vn.vn_credit_delta =
2009 			max_t(u32, (vn_min_rate * (T_FAIR_COEF /
2010 						   (8 * bp->vn_weight_sum))),
2011 			      (bp->cmng.fair_vars.fair_threshold +
2012 							MIN_ABOVE_THRESH));
2013 		DP(NETIF_MSG_IFUP, "m_fair_vn.vn_credit_delta %d\n",
2014 		   m_fair_vn.vn_credit_delta);
2015 	}
2016 
2017 	/* Store it to internal memory */
2018 	for (i = 0; i < sizeof(struct rate_shaping_vars_per_vn)/4; i++)
2019 		REG_WR(bp, BAR_XSTRORM_INTMEM +
2020 		       XSTORM_RATE_SHAPING_PER_VN_VARS_OFFSET(func) + i * 4,
2021 		       ((u32 *)(&m_rs_vn))[i]);
2022 
2023 	for (i = 0; i < sizeof(struct fairness_vars_per_vn)/4; i++)
2024 		REG_WR(bp, BAR_XSTRORM_INTMEM +
2025 		       XSTORM_FAIRNESS_PER_VN_VARS_OFFSET(func) + i * 4,
2026 		       ((u32 *)(&m_fair_vn))[i]);
2027 }
2028 
bnx2x_get_cmng_fns_mode(struct bnx2x * bp)2029 static int bnx2x_get_cmng_fns_mode(struct bnx2x *bp)
2030 {
2031 	if (CHIP_REV_IS_SLOW(bp))
2032 		return CMNG_FNS_NONE;
2033 	if (IS_MF(bp))
2034 		return CMNG_FNS_MINMAX;
2035 
2036 	return CMNG_FNS_NONE;
2037 }
2038 
bnx2x_read_mf_cfg(struct bnx2x * bp)2039 static void bnx2x_read_mf_cfg(struct bnx2x *bp)
2040 {
2041 	int vn, n = (CHIP_MODE_IS_4_PORT(bp) ? 2 : 1);
2042 
2043 	if (BP_NOMCP(bp))
2044 		return; /* what should be the default bvalue in this case */
2045 
2046 	/* For 2 port configuration the absolute function number formula
2047 	 * is:
2048 	 *      abs_func = 2 * vn + BP_PORT + BP_PATH
2049 	 *
2050 	 *      and there are 4 functions per port
2051 	 *
2052 	 * For 4 port configuration it is
2053 	 *      abs_func = 4 * vn + 2 * BP_PORT + BP_PATH
2054 	 *
2055 	 *      and there are 2 functions per port
2056 	 */
2057 	for (vn = VN_0; vn < E1HVN_MAX; vn++) {
2058 		int /*abs*/func = n * (2 * vn + BP_PORT(bp)) + BP_PATH(bp);
2059 
2060 		if (func >= E1H_FUNC_MAX)
2061 			break;
2062 
2063 		bp->mf_config[vn] =
2064 			MF_CFG_RD(bp, func_mf_config[func].config);
2065 	}
2066 }
2067 
bnx2x_cmng_fns_init(struct bnx2x * bp,u8 read_cfg,u8 cmng_type)2068 static void bnx2x_cmng_fns_init(struct bnx2x *bp, u8 read_cfg, u8 cmng_type)
2069 {
2070 
2071 	if (cmng_type == CMNG_FNS_MINMAX) {
2072 		int vn;
2073 
2074 		/* clear cmng_enables */
2075 		bp->cmng.flags.cmng_enables = 0;
2076 
2077 		/* read mf conf from shmem */
2078 		if (read_cfg)
2079 			bnx2x_read_mf_cfg(bp);
2080 
2081 		/* Init rate shaping and fairness contexts */
2082 		bnx2x_init_port_minmax(bp);
2083 
2084 		/* vn_weight_sum and enable fairness if not 0 */
2085 		bnx2x_calc_vn_weight_sum(bp);
2086 
2087 		/* calculate and set min-max rate for each vn */
2088 		if (bp->port.pmf)
2089 			for (vn = VN_0; vn < E1HVN_MAX; vn++)
2090 				bnx2x_init_vn_minmax(bp, vn);
2091 
2092 		/* always enable rate shaping and fairness */
2093 		bp->cmng.flags.cmng_enables |=
2094 					CMNG_FLAGS_PER_PORT_RATE_SHAPING_VN;
2095 		if (!bp->vn_weight_sum)
2096 			DP(NETIF_MSG_IFUP, "All MIN values are zeroes"
2097 				   "  fairness will be disabled\n");
2098 		return;
2099 	}
2100 
2101 	/* rate shaping and fairness are disabled */
2102 	DP(NETIF_MSG_IFUP,
2103 	   "rate shaping and fairness are disabled\n");
2104 }
2105 
bnx2x_link_sync_notify(struct bnx2x * bp)2106 static inline void bnx2x_link_sync_notify(struct bnx2x *bp)
2107 {
2108 	int port = BP_PORT(bp);
2109 	int func;
2110 	int vn;
2111 
2112 	/* Set the attention towards other drivers on the same port */
2113 	for (vn = VN_0; vn < E1HVN_MAX; vn++) {
2114 		if (vn == BP_E1HVN(bp))
2115 			continue;
2116 
2117 		func = ((vn << 1) | port);
2118 		REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
2119 		       (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
2120 	}
2121 }
2122 
2123 /* This function is called upon link interrupt */
bnx2x_link_attn(struct bnx2x * bp)2124 static void bnx2x_link_attn(struct bnx2x *bp)
2125 {
2126 	u32 prev_link_status = bp->link_vars.link_status;
2127 	/* Make sure that we are synced with the current statistics */
2128 	bnx2x_stats_handle(bp, STATS_EVENT_STOP);
2129 
2130 	bnx2x_link_update(&bp->link_params, &bp->link_vars);
2131 
2132 	if (bp->link_vars.link_up) {
2133 
2134 		/* dropless flow control */
2135 		if (!CHIP_IS_E1(bp) && bp->dropless_fc) {
2136 			int port = BP_PORT(bp);
2137 			u32 pause_enabled = 0;
2138 
2139 			if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
2140 				pause_enabled = 1;
2141 
2142 			REG_WR(bp, BAR_USTRORM_INTMEM +
2143 			       USTORM_ETH_PAUSE_ENABLED_OFFSET(port),
2144 			       pause_enabled);
2145 		}
2146 
2147 		if (bp->link_vars.mac_type == MAC_TYPE_BMAC) {
2148 			struct host_port_stats *pstats;
2149 
2150 			pstats = bnx2x_sp(bp, port_stats);
2151 			/* reset old bmac stats */
2152 			memset(&(pstats->mac_stx[0]), 0,
2153 			       sizeof(struct mac_stx));
2154 		}
2155 		if (bp->state == BNX2X_STATE_OPEN)
2156 			bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
2157 	}
2158 
2159 	if (bp->link_vars.link_up && bp->link_vars.line_speed) {
2160 		int cmng_fns = bnx2x_get_cmng_fns_mode(bp);
2161 
2162 		if (cmng_fns != CMNG_FNS_NONE) {
2163 			bnx2x_cmng_fns_init(bp, false, cmng_fns);
2164 			storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
2165 		} else
2166 			/* rate shaping and fairness are disabled */
2167 			DP(NETIF_MSG_IFUP,
2168 			   "single function mode without fairness\n");
2169 	}
2170 
2171 	if (IS_MF(bp))
2172 		bnx2x_link_sync_notify(bp);
2173 
2174 	/* indicate link status only if link status actually changed */
2175 	if (prev_link_status != bp->link_vars.link_status)
2176 		bnx2x_link_report(bp);
2177 }
2178 
bnx2x__link_status_update(struct bnx2x * bp)2179 void bnx2x__link_status_update(struct bnx2x *bp)
2180 {
2181 	if ((bp->state != BNX2X_STATE_OPEN) || (bp->flags & MF_FUNC_DIS))
2182 		return;
2183 
2184 	bnx2x_link_status_update(&bp->link_params, &bp->link_vars);
2185 
2186 	if (bp->link_vars.link_up)
2187 		bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
2188 	else
2189 		bnx2x_stats_handle(bp, STATS_EVENT_STOP);
2190 
2191 	/* the link status update could be the result of a DCC event
2192 	   hence re-read the shmem mf configuration */
2193 	bnx2x_read_mf_cfg(bp);
2194 
2195 	/* indicate link status */
2196 	bnx2x_link_report(bp);
2197 }
2198 
bnx2x_pmf_update(struct bnx2x * bp)2199 static void bnx2x_pmf_update(struct bnx2x *bp)
2200 {
2201 	int port = BP_PORT(bp);
2202 	u32 val;
2203 
2204 	bp->port.pmf = 1;
2205 	DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
2206 
2207 	/* enable nig attention */
2208 	val = (0xff0f | (1 << (BP_E1HVN(bp) + 4)));
2209 	if (bp->common.int_block == INT_BLOCK_HC) {
2210 		REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
2211 		REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
2212 	} else if (CHIP_IS_E2(bp)) {
2213 		REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
2214 		REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
2215 	}
2216 
2217 	bnx2x_stats_handle(bp, STATS_EVENT_PMF);
2218 }
2219 
2220 /* end of Link */
2221 
2222 /* slow path */
2223 
2224 /*
2225  * General service functions
2226  */
2227 
2228 /* send the MCP a request, block until there is a reply */
bnx2x_fw_command(struct bnx2x * bp,u32 command,u32 param)2229 u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param)
2230 {
2231 	int mb_idx = BP_FW_MB_IDX(bp);
2232 	u32 seq = ++bp->fw_seq;
2233 	u32 rc = 0;
2234 	u32 cnt = 1;
2235 	u8 delay = CHIP_REV_IS_SLOW(bp) ? 100 : 10;
2236 
2237 	mutex_lock(&bp->fw_mb_mutex);
2238 	SHMEM_WR(bp, func_mb[mb_idx].drv_mb_param, param);
2239 	SHMEM_WR(bp, func_mb[mb_idx].drv_mb_header, (command | seq));
2240 
2241 	DP(BNX2X_MSG_MCP, "wrote command (%x) to FW MB\n", (command | seq));
2242 
2243 	do {
2244 		/* let the FW do it's magic ... */
2245 		msleep(delay);
2246 
2247 		rc = SHMEM_RD(bp, func_mb[mb_idx].fw_mb_header);
2248 
2249 		/* Give the FW up to 5 second (500*10ms) */
2250 	} while ((seq != (rc & FW_MSG_SEQ_NUMBER_MASK)) && (cnt++ < 500));
2251 
2252 	DP(BNX2X_MSG_MCP, "[after %d ms] read (%x) seq is (%x) from FW MB\n",
2253 	   cnt*delay, rc, seq);
2254 
2255 	/* is this a reply to our command? */
2256 	if (seq == (rc & FW_MSG_SEQ_NUMBER_MASK))
2257 		rc &= FW_MSG_CODE_MASK;
2258 	else {
2259 		/* FW BUG! */
2260 		BNX2X_ERR("FW failed to respond!\n");
2261 		bnx2x_fw_dump(bp);
2262 		rc = 0;
2263 	}
2264 	mutex_unlock(&bp->fw_mb_mutex);
2265 
2266 	return rc;
2267 }
2268 
stat_counter_valid(struct bnx2x * bp,struct bnx2x_fastpath * fp)2269 static u8 stat_counter_valid(struct bnx2x *bp, struct bnx2x_fastpath *fp)
2270 {
2271 #ifdef BCM_CNIC
2272 	if (IS_FCOE_FP(fp) && IS_MF(bp))
2273 		return false;
2274 #endif
2275 	return true;
2276 }
2277 
2278 /* must be called under rtnl_lock */
bnx2x_rxq_set_mac_filters(struct bnx2x * bp,u16 cl_id,u32 filters)2279 static void bnx2x_rxq_set_mac_filters(struct bnx2x *bp, u16 cl_id, u32 filters)
2280 {
2281 	u32 mask = (1 << cl_id);
2282 
2283 	/* initial seeting is BNX2X_ACCEPT_NONE */
2284 	u8 drop_all_ucast = 1, drop_all_bcast = 1, drop_all_mcast = 1;
2285 	u8 accp_all_ucast = 0, accp_all_bcast = 0, accp_all_mcast = 0;
2286 	u8 unmatched_unicast = 0;
2287 
2288 	if (filters & BNX2X_ACCEPT_UNMATCHED_UCAST)
2289 		unmatched_unicast = 1;
2290 
2291 	if (filters & BNX2X_PROMISCUOUS_MODE) {
2292 		/* promiscious - accept all, drop none */
2293 		drop_all_ucast = drop_all_bcast = drop_all_mcast = 0;
2294 		accp_all_ucast = accp_all_bcast = accp_all_mcast = 1;
2295 		if (IS_MF_SI(bp)) {
2296 			/*
2297 			 * SI mode defines to accept in promiscuos mode
2298 			 * only unmatched packets
2299 			 */
2300 			unmatched_unicast = 1;
2301 			accp_all_ucast = 0;
2302 		}
2303 	}
2304 	if (filters & BNX2X_ACCEPT_UNICAST) {
2305 		/* accept matched ucast */
2306 		drop_all_ucast = 0;
2307 	}
2308 	if (filters & BNX2X_ACCEPT_MULTICAST)
2309 		/* accept matched mcast */
2310 		drop_all_mcast = 0;
2311 
2312 	if (filters & BNX2X_ACCEPT_ALL_UNICAST) {
2313 		/* accept all mcast */
2314 		drop_all_ucast = 0;
2315 		accp_all_ucast = 1;
2316 	}
2317 	if (filters & BNX2X_ACCEPT_ALL_MULTICAST) {
2318 		/* accept all mcast */
2319 		drop_all_mcast = 0;
2320 		accp_all_mcast = 1;
2321 	}
2322 	if (filters & BNX2X_ACCEPT_BROADCAST) {
2323 		/* accept (all) bcast */
2324 		drop_all_bcast = 0;
2325 		accp_all_bcast = 1;
2326 	}
2327 
2328 	bp->mac_filters.ucast_drop_all = drop_all_ucast ?
2329 		bp->mac_filters.ucast_drop_all | mask :
2330 		bp->mac_filters.ucast_drop_all & ~mask;
2331 
2332 	bp->mac_filters.mcast_drop_all = drop_all_mcast ?
2333 		bp->mac_filters.mcast_drop_all | mask :
2334 		bp->mac_filters.mcast_drop_all & ~mask;
2335 
2336 	bp->mac_filters.bcast_drop_all = drop_all_bcast ?
2337 		bp->mac_filters.bcast_drop_all | mask :
2338 		bp->mac_filters.bcast_drop_all & ~mask;
2339 
2340 	bp->mac_filters.ucast_accept_all = accp_all_ucast ?
2341 		bp->mac_filters.ucast_accept_all | mask :
2342 		bp->mac_filters.ucast_accept_all & ~mask;
2343 
2344 	bp->mac_filters.mcast_accept_all = accp_all_mcast ?
2345 		bp->mac_filters.mcast_accept_all | mask :
2346 		bp->mac_filters.mcast_accept_all & ~mask;
2347 
2348 	bp->mac_filters.bcast_accept_all = accp_all_bcast ?
2349 		bp->mac_filters.bcast_accept_all | mask :
2350 		bp->mac_filters.bcast_accept_all & ~mask;
2351 
2352 	bp->mac_filters.unmatched_unicast = unmatched_unicast ?
2353 		bp->mac_filters.unmatched_unicast | mask :
2354 		bp->mac_filters.unmatched_unicast & ~mask;
2355 }
2356 
bnx2x_func_init(struct bnx2x * bp,struct bnx2x_func_init_params * p)2357 static void bnx2x_func_init(struct bnx2x *bp, struct bnx2x_func_init_params *p)
2358 {
2359 	struct tstorm_eth_function_common_config tcfg = {0};
2360 	u16 rss_flgs;
2361 
2362 	/* tpa */
2363 	if (p->func_flgs & FUNC_FLG_TPA)
2364 		tcfg.config_flags |=
2365 		TSTORM_ETH_FUNCTION_COMMON_CONFIG_ENABLE_TPA;
2366 
2367 	/* set rss flags */
2368 	rss_flgs = (p->rss->mode <<
2369 		TSTORM_ETH_FUNCTION_COMMON_CONFIG_RSS_MODE_SHIFT);
2370 
2371 	if (p->rss->cap & RSS_IPV4_CAP)
2372 		rss_flgs |= RSS_IPV4_CAP_MASK;
2373 	if (p->rss->cap & RSS_IPV4_TCP_CAP)
2374 		rss_flgs |= RSS_IPV4_TCP_CAP_MASK;
2375 	if (p->rss->cap & RSS_IPV6_CAP)
2376 		rss_flgs |= RSS_IPV6_CAP_MASK;
2377 	if (p->rss->cap & RSS_IPV6_TCP_CAP)
2378 		rss_flgs |= RSS_IPV6_TCP_CAP_MASK;
2379 
2380 	tcfg.config_flags |= rss_flgs;
2381 	tcfg.rss_result_mask = p->rss->result_mask;
2382 
2383 	storm_memset_func_cfg(bp, &tcfg, p->func_id);
2384 
2385 	/* Enable the function in the FW */
2386 	storm_memset_vf_to_pf(bp, p->func_id, p->pf_id);
2387 	storm_memset_func_en(bp, p->func_id, 1);
2388 
2389 	/* statistics */
2390 	if (p->func_flgs & FUNC_FLG_STATS) {
2391 		struct stats_indication_flags stats_flags = {0};
2392 		stats_flags.collect_eth = 1;
2393 
2394 		storm_memset_xstats_flags(bp, &stats_flags, p->func_id);
2395 		storm_memset_xstats_addr(bp, p->fw_stat_map, p->func_id);
2396 
2397 		storm_memset_tstats_flags(bp, &stats_flags, p->func_id);
2398 		storm_memset_tstats_addr(bp, p->fw_stat_map, p->func_id);
2399 
2400 		storm_memset_ustats_flags(bp, &stats_flags, p->func_id);
2401 		storm_memset_ustats_addr(bp, p->fw_stat_map, p->func_id);
2402 
2403 		storm_memset_cstats_flags(bp, &stats_flags, p->func_id);
2404 		storm_memset_cstats_addr(bp, p->fw_stat_map, p->func_id);
2405 	}
2406 
2407 	/* spq */
2408 	if (p->func_flgs & FUNC_FLG_SPQ) {
2409 		storm_memset_spq_addr(bp, p->spq_map, p->func_id);
2410 		REG_WR(bp, XSEM_REG_FAST_MEMORY +
2411 		       XSTORM_SPQ_PROD_OFFSET(p->func_id), p->spq_prod);
2412 	}
2413 }
2414 
bnx2x_get_cl_flags(struct bnx2x * bp,struct bnx2x_fastpath * fp)2415 static inline u16 bnx2x_get_cl_flags(struct bnx2x *bp,
2416 				     struct bnx2x_fastpath *fp)
2417 {
2418 	u16 flags = 0;
2419 
2420 	/* calculate queue flags */
2421 	flags |= QUEUE_FLG_CACHE_ALIGN;
2422 	flags |= QUEUE_FLG_HC;
2423 	flags |= IS_MF_SD(bp) ? QUEUE_FLG_OV : 0;
2424 
2425 	flags |= QUEUE_FLG_VLAN;
2426 	DP(NETIF_MSG_IFUP, "vlan removal enabled\n");
2427 
2428 	if (!fp->disable_tpa)
2429 		flags |= QUEUE_FLG_TPA;
2430 
2431 	flags = stat_counter_valid(bp, fp) ?
2432 			(flags | QUEUE_FLG_STATS) : (flags & ~QUEUE_FLG_STATS);
2433 
2434 	return flags;
2435 }
2436 
bnx2x_pf_rx_cl_prep(struct bnx2x * bp,struct bnx2x_fastpath * fp,struct rxq_pause_params * pause,struct bnx2x_rxq_init_params * rxq_init)2437 static void bnx2x_pf_rx_cl_prep(struct bnx2x *bp,
2438 	struct bnx2x_fastpath *fp, struct rxq_pause_params *pause,
2439 	struct bnx2x_rxq_init_params *rxq_init)
2440 {
2441 	u16 max_sge = 0;
2442 	u16 sge_sz = 0;
2443 	u16 tpa_agg_size = 0;
2444 
2445 	/* calculate queue flags */
2446 	u16 flags = bnx2x_get_cl_flags(bp, fp);
2447 
2448 	if (!fp->disable_tpa) {
2449 		pause->sge_th_hi = 250;
2450 		pause->sge_th_lo = 150;
2451 		tpa_agg_size = min_t(u32,
2452 			(min_t(u32, 8, MAX_SKB_FRAGS) *
2453 			SGE_PAGE_SIZE * PAGES_PER_SGE), 0xffff);
2454 		max_sge = SGE_PAGE_ALIGN(bp->dev->mtu) >>
2455 			SGE_PAGE_SHIFT;
2456 		max_sge = ((max_sge + PAGES_PER_SGE - 1) &
2457 			  (~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
2458 		sge_sz = (u16)min_t(u32, SGE_PAGE_SIZE * PAGES_PER_SGE,
2459 				    0xffff);
2460 	}
2461 
2462 	/* pause - not for e1 */
2463 	if (!CHIP_IS_E1(bp)) {
2464 		pause->bd_th_hi = 350;
2465 		pause->bd_th_lo = 250;
2466 		pause->rcq_th_hi = 350;
2467 		pause->rcq_th_lo = 250;
2468 		pause->sge_th_hi = 0;
2469 		pause->sge_th_lo = 0;
2470 		pause->pri_map = 1;
2471 	}
2472 
2473 	/* rxq setup */
2474 	rxq_init->flags = flags;
2475 	rxq_init->cxt = &bp->context.vcxt[fp->cid].eth;
2476 	rxq_init->dscr_map = fp->rx_desc_mapping;
2477 	rxq_init->sge_map = fp->rx_sge_mapping;
2478 	rxq_init->rcq_map = fp->rx_comp_mapping;
2479 	rxq_init->rcq_np_map = fp->rx_comp_mapping + BCM_PAGE_SIZE;
2480 
2481 	/* Always use mini-jumbo MTU for FCoE L2 ring */
2482 	if (IS_FCOE_FP(fp))
2483 		rxq_init->mtu = BNX2X_FCOE_MINI_JUMBO_MTU;
2484 	else
2485 		rxq_init->mtu = bp->dev->mtu;
2486 
2487 	rxq_init->buf_sz = fp->rx_buf_size;
2488 	rxq_init->cl_qzone_id = fp->cl_qzone_id;
2489 	rxq_init->cl_id = fp->cl_id;
2490 	rxq_init->spcl_id = fp->cl_id;
2491 	rxq_init->stat_id = fp->cl_id;
2492 	rxq_init->tpa_agg_sz = tpa_agg_size;
2493 	rxq_init->sge_buf_sz = sge_sz;
2494 	rxq_init->max_sges_pkt = max_sge;
2495 	rxq_init->cache_line_log = BNX2X_RX_ALIGN_SHIFT;
2496 	rxq_init->fw_sb_id = fp->fw_sb_id;
2497 
2498 	if (IS_FCOE_FP(fp))
2499 		rxq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_RX_CQ_CONS;
2500 	else
2501 		rxq_init->sb_cq_index = U_SB_ETH_RX_CQ_INDEX;
2502 
2503 	rxq_init->cid = HW_CID(bp, fp->cid);
2504 
2505 	rxq_init->hc_rate = bp->rx_ticks ? (1000000 / bp->rx_ticks) : 0;
2506 }
2507 
bnx2x_pf_tx_cl_prep(struct bnx2x * bp,struct bnx2x_fastpath * fp,struct bnx2x_txq_init_params * txq_init)2508 static void bnx2x_pf_tx_cl_prep(struct bnx2x *bp,
2509 	struct bnx2x_fastpath *fp, struct bnx2x_txq_init_params *txq_init)
2510 {
2511 	u16 flags = bnx2x_get_cl_flags(bp, fp);
2512 
2513 	txq_init->flags = flags;
2514 	txq_init->cxt = &bp->context.vcxt[fp->cid].eth;
2515 	txq_init->dscr_map = fp->tx_desc_mapping;
2516 	txq_init->stat_id = fp->cl_id;
2517 	txq_init->cid = HW_CID(bp, fp->cid);
2518 	txq_init->sb_cq_index = C_SB_ETH_TX_CQ_INDEX;
2519 	txq_init->traffic_type = LLFC_TRAFFIC_TYPE_NW;
2520 	txq_init->fw_sb_id = fp->fw_sb_id;
2521 
2522 	if (IS_FCOE_FP(fp)) {
2523 		txq_init->sb_cq_index = HC_SP_INDEX_ETH_FCOE_TX_CQ_CONS;
2524 		txq_init->traffic_type = LLFC_TRAFFIC_TYPE_FCOE;
2525 	}
2526 
2527 	txq_init->hc_rate = bp->tx_ticks ? (1000000 / bp->tx_ticks) : 0;
2528 }
2529 
bnx2x_pf_init(struct bnx2x * bp)2530 static void bnx2x_pf_init(struct bnx2x *bp)
2531 {
2532 	struct bnx2x_func_init_params func_init = {0};
2533 	struct bnx2x_rss_params rss = {0};
2534 	struct event_ring_data eq_data = { {0} };
2535 	u16 flags;
2536 
2537 	/* pf specific setups */
2538 	if (!CHIP_IS_E1(bp))
2539 		storm_memset_ov(bp, bp->mf_ov, BP_FUNC(bp));
2540 
2541 	if (CHIP_IS_E2(bp)) {
2542 		/* reset IGU PF statistics: MSIX + ATTN */
2543 		/* PF */
2544 		REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
2545 			   BNX2X_IGU_STAS_MSG_VF_CNT*4 +
2546 			   (CHIP_MODE_IS_4_PORT(bp) ?
2547 				BP_FUNC(bp) : BP_VN(bp))*4, 0);
2548 		/* ATTN */
2549 		REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT +
2550 			   BNX2X_IGU_STAS_MSG_VF_CNT*4 +
2551 			   BNX2X_IGU_STAS_MSG_PF_CNT*4 +
2552 			   (CHIP_MODE_IS_4_PORT(bp) ?
2553 				BP_FUNC(bp) : BP_VN(bp))*4, 0);
2554 	}
2555 
2556 	/* function setup flags */
2557 	flags = (FUNC_FLG_STATS | FUNC_FLG_LEADING | FUNC_FLG_SPQ);
2558 
2559 	if (CHIP_IS_E1x(bp))
2560 		flags |= (bp->flags & TPA_ENABLE_FLAG) ? FUNC_FLG_TPA : 0;
2561 	else
2562 		flags |= FUNC_FLG_TPA;
2563 
2564 	/* function setup */
2565 
2566 	/**
2567 	 * Although RSS is meaningless when there is a single HW queue we
2568 	 * still need it enabled in order to have HW Rx hash generated.
2569 	 */
2570 	rss.cap = (RSS_IPV4_CAP | RSS_IPV4_TCP_CAP |
2571 		   RSS_IPV6_CAP | RSS_IPV6_TCP_CAP);
2572 	rss.mode = bp->multi_mode;
2573 	rss.result_mask = MULTI_MASK;
2574 	func_init.rss = &rss;
2575 
2576 	func_init.func_flgs = flags;
2577 	func_init.pf_id = BP_FUNC(bp);
2578 	func_init.func_id = BP_FUNC(bp);
2579 	func_init.fw_stat_map = bnx2x_sp_mapping(bp, fw_stats);
2580 	func_init.spq_map = bp->spq_mapping;
2581 	func_init.spq_prod = bp->spq_prod_idx;
2582 
2583 	bnx2x_func_init(bp, &func_init);
2584 
2585 	memset(&(bp->cmng), 0, sizeof(struct cmng_struct_per_port));
2586 
2587 	/*
2588 	Congestion management values depend on the link rate
2589 	There is no active link so initial link rate is set to 10 Gbps.
2590 	When the link comes up The congestion management values are
2591 	re-calculated according to the actual link rate.
2592 	*/
2593 	bp->link_vars.line_speed = SPEED_10000;
2594 	bnx2x_cmng_fns_init(bp, true, bnx2x_get_cmng_fns_mode(bp));
2595 
2596 	/* Only the PMF sets the HW */
2597 	if (bp->port.pmf)
2598 		storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
2599 
2600 	/* no rx until link is up */
2601 	bp->rx_mode = BNX2X_RX_MODE_NONE;
2602 	bnx2x_set_storm_rx_mode(bp);
2603 
2604 	/* init Event Queue */
2605 	eq_data.base_addr.hi = U64_HI(bp->eq_mapping);
2606 	eq_data.base_addr.lo = U64_LO(bp->eq_mapping);
2607 	eq_data.producer = bp->eq_prod;
2608 	eq_data.index_id = HC_SP_INDEX_EQ_CONS;
2609 	eq_data.sb_id = DEF_SB_ID;
2610 	storm_memset_eq_data(bp, &eq_data, BP_FUNC(bp));
2611 }
2612 
2613 
bnx2x_e1h_disable(struct bnx2x * bp)2614 static void bnx2x_e1h_disable(struct bnx2x *bp)
2615 {
2616 	int port = BP_PORT(bp);
2617 
2618 	netif_tx_disable(bp->dev);
2619 
2620 	REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
2621 
2622 	netif_carrier_off(bp->dev);
2623 }
2624 
bnx2x_e1h_enable(struct bnx2x * bp)2625 static void bnx2x_e1h_enable(struct bnx2x *bp)
2626 {
2627 	int port = BP_PORT(bp);
2628 
2629 	REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
2630 
2631 	/* Tx queue should be only reenabled */
2632 	netif_tx_wake_all_queues(bp->dev);
2633 
2634 	/*
2635 	 * Should not call netif_carrier_on since it will be called if the link
2636 	 * is up when checking for link state
2637 	 */
2638 }
2639 
2640 /* called due to MCP event (on pmf):
2641  *	reread new bandwidth configuration
2642  *	configure FW
2643  *	notify others function about the change
2644  */
bnx2x_config_mf_bw(struct bnx2x * bp)2645 static inline void bnx2x_config_mf_bw(struct bnx2x *bp)
2646 {
2647 	if (bp->link_vars.link_up) {
2648 		bnx2x_cmng_fns_init(bp, true, CMNG_FNS_MINMAX);
2649 		bnx2x_link_sync_notify(bp);
2650 	}
2651 	storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
2652 }
2653 
bnx2x_set_mf_bw(struct bnx2x * bp)2654 static inline void bnx2x_set_mf_bw(struct bnx2x *bp)
2655 {
2656 	bnx2x_config_mf_bw(bp);
2657 	bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW_ACK, 0);
2658 }
2659 
bnx2x_dcc_event(struct bnx2x * bp,u32 dcc_event)2660 static void bnx2x_dcc_event(struct bnx2x *bp, u32 dcc_event)
2661 {
2662 	DP(BNX2X_MSG_MCP, "dcc_event 0x%x\n", dcc_event);
2663 
2664 	if (dcc_event & DRV_STATUS_DCC_DISABLE_ENABLE_PF) {
2665 
2666 		/*
2667 		 * This is the only place besides the function initialization
2668 		 * where the bp->flags can change so it is done without any
2669 		 * locks
2670 		 */
2671 		if (bp->mf_config[BP_VN(bp)] & FUNC_MF_CFG_FUNC_DISABLED) {
2672 			DP(NETIF_MSG_IFDOWN, "mf_cfg function disabled\n");
2673 			bp->flags |= MF_FUNC_DIS;
2674 
2675 			bnx2x_e1h_disable(bp);
2676 		} else {
2677 			DP(NETIF_MSG_IFUP, "mf_cfg function enabled\n");
2678 			bp->flags &= ~MF_FUNC_DIS;
2679 
2680 			bnx2x_e1h_enable(bp);
2681 		}
2682 		dcc_event &= ~DRV_STATUS_DCC_DISABLE_ENABLE_PF;
2683 	}
2684 	if (dcc_event & DRV_STATUS_DCC_BANDWIDTH_ALLOCATION) {
2685 		bnx2x_config_mf_bw(bp);
2686 		dcc_event &= ~DRV_STATUS_DCC_BANDWIDTH_ALLOCATION;
2687 	}
2688 
2689 	/* Report results to MCP */
2690 	if (dcc_event)
2691 		bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_FAILURE, 0);
2692 	else
2693 		bnx2x_fw_command(bp, DRV_MSG_CODE_DCC_OK, 0);
2694 }
2695 
2696 /* must be called under the spq lock */
bnx2x_sp_get_next(struct bnx2x * bp)2697 static inline struct eth_spe *bnx2x_sp_get_next(struct bnx2x *bp)
2698 {
2699 	struct eth_spe *next_spe = bp->spq_prod_bd;
2700 
2701 	if (bp->spq_prod_bd == bp->spq_last_bd) {
2702 		bp->spq_prod_bd = bp->spq;
2703 		bp->spq_prod_idx = 0;
2704 		DP(NETIF_MSG_TIMER, "end of spq\n");
2705 	} else {
2706 		bp->spq_prod_bd++;
2707 		bp->spq_prod_idx++;
2708 	}
2709 	return next_spe;
2710 }
2711 
2712 /* must be called under the spq lock */
bnx2x_sp_prod_update(struct bnx2x * bp)2713 static inline void bnx2x_sp_prod_update(struct bnx2x *bp)
2714 {
2715 	int func = BP_FUNC(bp);
2716 
2717 	/* Make sure that BD data is updated before writing the producer */
2718 	wmb();
2719 
2720 	REG_WR16(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func),
2721 		 bp->spq_prod_idx);
2722 	mmiowb();
2723 }
2724 
2725 /* the slow path queue is odd since completions arrive on the fastpath ring */
bnx2x_sp_post(struct bnx2x * bp,int command,int cid,u32 data_hi,u32 data_lo,int common)2726 int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
2727 		  u32 data_hi, u32 data_lo, int common)
2728 {
2729 	struct eth_spe *spe;
2730 	u16 type;
2731 
2732 #ifdef BNX2X_STOP_ON_ERROR
2733 	if (unlikely(bp->panic))
2734 		return -EIO;
2735 #endif
2736 
2737 	spin_lock_bh(&bp->spq_lock);
2738 
2739 	if (common) {
2740 		if (!atomic_read(&bp->eq_spq_left)) {
2741 			BNX2X_ERR("BUG! EQ ring full!\n");
2742 			spin_unlock_bh(&bp->spq_lock);
2743 			bnx2x_panic();
2744 			return -EBUSY;
2745 		}
2746 	} else if (!atomic_read(&bp->cq_spq_left)) {
2747 			BNX2X_ERR("BUG! SPQ ring full!\n");
2748 			spin_unlock_bh(&bp->spq_lock);
2749 			bnx2x_panic();
2750 			return -EBUSY;
2751 	}
2752 
2753 	spe = bnx2x_sp_get_next(bp);
2754 
2755 	/* CID needs port number to be encoded int it */
2756 	spe->hdr.conn_and_cmd_data =
2757 			cpu_to_le32((command << SPE_HDR_CMD_ID_SHIFT) |
2758 				    HW_CID(bp, cid));
2759 
2760 	if (common)
2761 		/* Common ramrods:
2762 		 *	FUNC_START, FUNC_STOP, CFC_DEL, STATS, SET_MAC
2763 		 *	TRAFFIC_STOP, TRAFFIC_START
2764 		 */
2765 		type = (NONE_CONNECTION_TYPE << SPE_HDR_CONN_TYPE_SHIFT)
2766 			& SPE_HDR_CONN_TYPE;
2767 	else
2768 		/* ETH ramrods: SETUP, HALT */
2769 		type = (ETH_CONNECTION_TYPE << SPE_HDR_CONN_TYPE_SHIFT)
2770 			& SPE_HDR_CONN_TYPE;
2771 
2772 	type |= ((BP_FUNC(bp) << SPE_HDR_FUNCTION_ID_SHIFT) &
2773 		 SPE_HDR_FUNCTION_ID);
2774 
2775 	spe->hdr.type = cpu_to_le16(type);
2776 
2777 	spe->data.update_data_addr.hi = cpu_to_le32(data_hi);
2778 	spe->data.update_data_addr.lo = cpu_to_le32(data_lo);
2779 
2780 	/* stats ramrod has it's own slot on the spq */
2781 	if (command != RAMROD_CMD_ID_COMMON_STAT_QUERY) {
2782 		/* It's ok if the actual decrement is issued towards the memory
2783 		 * somewhere between the spin_lock and spin_unlock. Thus no
2784 		 * more explict memory barrier is needed.
2785 		 */
2786 		if (common)
2787 			atomic_dec(&bp->eq_spq_left);
2788 		else
2789 			atomic_dec(&bp->cq_spq_left);
2790 	}
2791 
2792 
2793 	DP(BNX2X_MSG_SP/*NETIF_MSG_TIMER*/,
2794 	   "SPQE[%x] (%x:%x)  command %d  hw_cid %x  data (%x:%x) "
2795 	   "type(0x%x) left (ETH, COMMON) (%x,%x)\n",
2796 	   bp->spq_prod_idx, (u32)U64_HI(bp->spq_mapping),
2797 	   (u32)(U64_LO(bp->spq_mapping) +
2798 	   (void *)bp->spq_prod_bd - (void *)bp->spq), command,
2799 	   HW_CID(bp, cid), data_hi, data_lo, type,
2800 	   atomic_read(&bp->cq_spq_left), atomic_read(&bp->eq_spq_left));
2801 
2802 	bnx2x_sp_prod_update(bp);
2803 	spin_unlock_bh(&bp->spq_lock);
2804 	return 0;
2805 }
2806 
2807 /* acquire split MCP access lock register */
bnx2x_acquire_alr(struct bnx2x * bp)2808 static int bnx2x_acquire_alr(struct bnx2x *bp)
2809 {
2810 	u32 j, val;
2811 	int rc = 0;
2812 
2813 	might_sleep();
2814 	for (j = 0; j < 1000; j++) {
2815 		val = (1UL << 31);
2816 		REG_WR(bp, GRCBASE_MCP + 0x9c, val);
2817 		val = REG_RD(bp, GRCBASE_MCP + 0x9c);
2818 		if (val & (1L << 31))
2819 			break;
2820 
2821 		msleep(5);
2822 	}
2823 	if (!(val & (1L << 31))) {
2824 		BNX2X_ERR("Cannot acquire MCP access lock register\n");
2825 		rc = -EBUSY;
2826 	}
2827 
2828 	return rc;
2829 }
2830 
2831 /* release split MCP access lock register */
bnx2x_release_alr(struct bnx2x * bp)2832 static void bnx2x_release_alr(struct bnx2x *bp)
2833 {
2834 	REG_WR(bp, GRCBASE_MCP + 0x9c, 0);
2835 }
2836 
2837 #define BNX2X_DEF_SB_ATT_IDX	0x0001
2838 #define BNX2X_DEF_SB_IDX	0x0002
2839 
bnx2x_update_dsb_idx(struct bnx2x * bp)2840 static inline u16 bnx2x_update_dsb_idx(struct bnx2x *bp)
2841 {
2842 	struct host_sp_status_block *def_sb = bp->def_status_blk;
2843 	u16 rc = 0;
2844 
2845 	barrier(); /* status block is written to by the chip */
2846 	if (bp->def_att_idx != def_sb->atten_status_block.attn_bits_index) {
2847 		bp->def_att_idx = def_sb->atten_status_block.attn_bits_index;
2848 		rc |= BNX2X_DEF_SB_ATT_IDX;
2849 	}
2850 
2851 	if (bp->def_idx != def_sb->sp_sb.running_index) {
2852 		bp->def_idx = def_sb->sp_sb.running_index;
2853 		rc |= BNX2X_DEF_SB_IDX;
2854 	}
2855 
2856 	/* Do not reorder: indecies reading should complete before handling */
2857 	barrier();
2858 	return rc;
2859 }
2860 
2861 /*
2862  * slow path service functions
2863  */
2864 
bnx2x_attn_int_asserted(struct bnx2x * bp,u32 asserted)2865 static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
2866 {
2867 	int port = BP_PORT(bp);
2868 	u32 aeu_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
2869 			      MISC_REG_AEU_MASK_ATTN_FUNC_0;
2870 	u32 nig_int_mask_addr = port ? NIG_REG_MASK_INTERRUPT_PORT1 :
2871 				       NIG_REG_MASK_INTERRUPT_PORT0;
2872 	u32 aeu_mask;
2873 	u32 nig_mask = 0;
2874 	u32 reg_addr;
2875 
2876 	if (bp->attn_state & asserted)
2877 		BNX2X_ERR("IGU ERROR\n");
2878 
2879 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
2880 	aeu_mask = REG_RD(bp, aeu_addr);
2881 
2882 	DP(NETIF_MSG_HW, "aeu_mask %x  newly asserted %x\n",
2883 	   aeu_mask, asserted);
2884 	aeu_mask &= ~(asserted & 0x3ff);
2885 	DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
2886 
2887 	REG_WR(bp, aeu_addr, aeu_mask);
2888 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
2889 
2890 	DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
2891 	bp->attn_state |= asserted;
2892 	DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
2893 
2894 	if (asserted & ATTN_HARD_WIRED_MASK) {
2895 		if (asserted & ATTN_NIG_FOR_FUNC) {
2896 
2897 			bnx2x_acquire_phy_lock(bp);
2898 
2899 			/* save nig interrupt mask */
2900 			nig_mask = REG_RD(bp, nig_int_mask_addr);
2901 			REG_WR(bp, nig_int_mask_addr, 0);
2902 
2903 			bnx2x_link_attn(bp);
2904 
2905 			/* handle unicore attn? */
2906 		}
2907 		if (asserted & ATTN_SW_TIMER_4_FUNC)
2908 			DP(NETIF_MSG_HW, "ATTN_SW_TIMER_4_FUNC!\n");
2909 
2910 		if (asserted & GPIO_2_FUNC)
2911 			DP(NETIF_MSG_HW, "GPIO_2_FUNC!\n");
2912 
2913 		if (asserted & GPIO_3_FUNC)
2914 			DP(NETIF_MSG_HW, "GPIO_3_FUNC!\n");
2915 
2916 		if (asserted & GPIO_4_FUNC)
2917 			DP(NETIF_MSG_HW, "GPIO_4_FUNC!\n");
2918 
2919 		if (port == 0) {
2920 			if (asserted & ATTN_GENERAL_ATTN_1) {
2921 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_1!\n");
2922 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_1, 0x0);
2923 			}
2924 			if (asserted & ATTN_GENERAL_ATTN_2) {
2925 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_2!\n");
2926 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_2, 0x0);
2927 			}
2928 			if (asserted & ATTN_GENERAL_ATTN_3) {
2929 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_3!\n");
2930 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_3, 0x0);
2931 			}
2932 		} else {
2933 			if (asserted & ATTN_GENERAL_ATTN_4) {
2934 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_4!\n");
2935 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_4, 0x0);
2936 			}
2937 			if (asserted & ATTN_GENERAL_ATTN_5) {
2938 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_5!\n");
2939 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_5, 0x0);
2940 			}
2941 			if (asserted & ATTN_GENERAL_ATTN_6) {
2942 				DP(NETIF_MSG_HW, "ATTN_GENERAL_ATTN_6!\n");
2943 				REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_6, 0x0);
2944 			}
2945 		}
2946 
2947 	} /* if hardwired */
2948 
2949 	if (bp->common.int_block == INT_BLOCK_HC)
2950 		reg_addr = (HC_REG_COMMAND_REG + port*32 +
2951 			    COMMAND_REG_ATTN_BITS_SET);
2952 	else
2953 		reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_SET_UPPER*8);
2954 
2955 	DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", asserted,
2956 	   (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
2957 	REG_WR(bp, reg_addr, asserted);
2958 
2959 	/* now set back the mask */
2960 	if (asserted & ATTN_NIG_FOR_FUNC) {
2961 		REG_WR(bp, nig_int_mask_addr, nig_mask);
2962 		bnx2x_release_phy_lock(bp);
2963 	}
2964 }
2965 
bnx2x_fan_failure(struct bnx2x * bp)2966 static inline void bnx2x_fan_failure(struct bnx2x *bp)
2967 {
2968 	int port = BP_PORT(bp);
2969 	u32 ext_phy_config;
2970 	/* mark the failure */
2971 	ext_phy_config =
2972 		SHMEM_RD(bp,
2973 			 dev_info.port_hw_config[port].external_phy_config);
2974 
2975 	ext_phy_config &= ~PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
2976 	ext_phy_config |= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE;
2977 	SHMEM_WR(bp, dev_info.port_hw_config[port].external_phy_config,
2978 		 ext_phy_config);
2979 
2980 	/* log the failure */
2981 	netdev_err(bp->dev, "Fan Failure on Network Controller has caused"
2982 	       " the driver to shutdown the card to prevent permanent"
2983 	       " damage.  Please contact OEM Support for assistance\n");
2984 }
2985 
bnx2x_attn_int_deasserted0(struct bnx2x * bp,u32 attn)2986 static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
2987 {
2988 	int port = BP_PORT(bp);
2989 	int reg_offset;
2990 	u32 val;
2991 
2992 	reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
2993 			     MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
2994 
2995 	if (attn & AEU_INPUTS_ATTN_BITS_SPIO5) {
2996 
2997 		val = REG_RD(bp, reg_offset);
2998 		val &= ~AEU_INPUTS_ATTN_BITS_SPIO5;
2999 		REG_WR(bp, reg_offset, val);
3000 
3001 		BNX2X_ERR("SPIO5 hw attention\n");
3002 
3003 		/* Fan failure attention */
3004 		bnx2x_hw_reset_phy(&bp->link_params);
3005 		bnx2x_fan_failure(bp);
3006 	}
3007 
3008 	if (attn & (AEU_INPUTS_ATTN_BITS_GPIO3_FUNCTION_0 |
3009 		    AEU_INPUTS_ATTN_BITS_GPIO3_FUNCTION_1)) {
3010 		bnx2x_acquire_phy_lock(bp);
3011 		bnx2x_handle_module_detect_int(&bp->link_params);
3012 		bnx2x_release_phy_lock(bp);
3013 	}
3014 
3015 	if (attn & HW_INTERRUT_ASSERT_SET_0) {
3016 
3017 		val = REG_RD(bp, reg_offset);
3018 		val &= ~(attn & HW_INTERRUT_ASSERT_SET_0);
3019 		REG_WR(bp, reg_offset, val);
3020 
3021 		BNX2X_ERR("FATAL HW block attention set0 0x%x\n",
3022 			  (u32)(attn & HW_INTERRUT_ASSERT_SET_0));
3023 		bnx2x_panic();
3024 	}
3025 }
3026 
bnx2x_attn_int_deasserted1(struct bnx2x * bp,u32 attn)3027 static inline void bnx2x_attn_int_deasserted1(struct bnx2x *bp, u32 attn)
3028 {
3029 	u32 val;
3030 
3031 	if (attn & AEU_INPUTS_ATTN_BITS_DOORBELLQ_HW_INTERRUPT) {
3032 
3033 		val = REG_RD(bp, DORQ_REG_DORQ_INT_STS_CLR);
3034 		BNX2X_ERR("DB hw attention 0x%x\n", val);
3035 		/* DORQ discard attention */
3036 		if (val & 0x2)
3037 			BNX2X_ERR("FATAL error from DORQ\n");
3038 	}
3039 
3040 	if (attn & HW_INTERRUT_ASSERT_SET_1) {
3041 
3042 		int port = BP_PORT(bp);
3043 		int reg_offset;
3044 
3045 		reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_1 :
3046 				     MISC_REG_AEU_ENABLE1_FUNC_0_OUT_1);
3047 
3048 		val = REG_RD(bp, reg_offset);
3049 		val &= ~(attn & HW_INTERRUT_ASSERT_SET_1);
3050 		REG_WR(bp, reg_offset, val);
3051 
3052 		BNX2X_ERR("FATAL HW block attention set1 0x%x\n",
3053 			  (u32)(attn & HW_INTERRUT_ASSERT_SET_1));
3054 		bnx2x_panic();
3055 	}
3056 }
3057 
bnx2x_attn_int_deasserted2(struct bnx2x * bp,u32 attn)3058 static inline void bnx2x_attn_int_deasserted2(struct bnx2x *bp, u32 attn)
3059 {
3060 	u32 val;
3061 
3062 	if (attn & AEU_INPUTS_ATTN_BITS_CFC_HW_INTERRUPT) {
3063 
3064 		val = REG_RD(bp, CFC_REG_CFC_INT_STS_CLR);
3065 		BNX2X_ERR("CFC hw attention 0x%x\n", val);
3066 		/* CFC error attention */
3067 		if (val & 0x2)
3068 			BNX2X_ERR("FATAL error from CFC\n");
3069 	}
3070 
3071 	if (attn & AEU_INPUTS_ATTN_BITS_PXP_HW_INTERRUPT) {
3072 
3073 		val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_0);
3074 		BNX2X_ERR("PXP hw attention 0x%x\n", val);
3075 		/* RQ_USDMDP_FIFO_OVERFLOW */
3076 		if (val & 0x18000)
3077 			BNX2X_ERR("FATAL error from PXP\n");
3078 		if (CHIP_IS_E2(bp)) {
3079 			val = REG_RD(bp, PXP_REG_PXP_INT_STS_CLR_1);
3080 			BNX2X_ERR("PXP hw attention-1 0x%x\n", val);
3081 		}
3082 	}
3083 
3084 	if (attn & HW_INTERRUT_ASSERT_SET_2) {
3085 
3086 		int port = BP_PORT(bp);
3087 		int reg_offset;
3088 
3089 		reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_2 :
3090 				     MISC_REG_AEU_ENABLE1_FUNC_0_OUT_2);
3091 
3092 		val = REG_RD(bp, reg_offset);
3093 		val &= ~(attn & HW_INTERRUT_ASSERT_SET_2);
3094 		REG_WR(bp, reg_offset, val);
3095 
3096 		BNX2X_ERR("FATAL HW block attention set2 0x%x\n",
3097 			  (u32)(attn & HW_INTERRUT_ASSERT_SET_2));
3098 		bnx2x_panic();
3099 	}
3100 }
3101 
bnx2x_attn_int_deasserted3(struct bnx2x * bp,u32 attn)3102 static inline void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn)
3103 {
3104 	u32 val;
3105 
3106 	if (attn & EVEREST_GEN_ATTN_IN_USE_MASK) {
3107 
3108 		if (attn & BNX2X_PMF_LINK_ASSERT) {
3109 			int func = BP_FUNC(bp);
3110 
3111 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
3112 			bp->mf_config[BP_VN(bp)] = MF_CFG_RD(bp,
3113 					func_mf_config[BP_ABS_FUNC(bp)].config);
3114 			val = SHMEM_RD(bp,
3115 				       func_mb[BP_FW_MB_IDX(bp)].drv_status);
3116 			if (val & DRV_STATUS_DCC_EVENT_MASK)
3117 				bnx2x_dcc_event(bp,
3118 					    (val & DRV_STATUS_DCC_EVENT_MASK));
3119 
3120 			if (val & DRV_STATUS_SET_MF_BW)
3121 				bnx2x_set_mf_bw(bp);
3122 
3123 			bnx2x__link_status_update(bp);
3124 			if ((bp->port.pmf == 0) && (val & DRV_STATUS_PMF))
3125 				bnx2x_pmf_update(bp);
3126 
3127 			if (bp->port.pmf &&
3128 			    (val & DRV_STATUS_DCBX_NEGOTIATION_RESULTS) &&
3129 				bp->dcbx_enabled > 0)
3130 				/* start dcbx state machine */
3131 				bnx2x_dcbx_set_params(bp,
3132 					BNX2X_DCBX_STATE_NEG_RECEIVED);
3133 		} else if (attn & BNX2X_MC_ASSERT_BITS) {
3134 
3135 			BNX2X_ERR("MC assert!\n");
3136 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_10, 0);
3137 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_9, 0);
3138 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_8, 0);
3139 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_7, 0);
3140 			bnx2x_panic();
3141 
3142 		} else if (attn & BNX2X_MCP_ASSERT) {
3143 
3144 			BNX2X_ERR("MCP assert!\n");
3145 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_11, 0);
3146 			bnx2x_fw_dump(bp);
3147 
3148 		} else
3149 			BNX2X_ERR("Unknown HW assert! (attn 0x%x)\n", attn);
3150 	}
3151 
3152 	if (attn & EVEREST_LATCHED_ATTN_IN_USE_MASK) {
3153 		BNX2X_ERR("LATCHED attention 0x%08x (masked)\n", attn);
3154 		if (attn & BNX2X_GRC_TIMEOUT) {
3155 			val = CHIP_IS_E1(bp) ? 0 :
3156 					REG_RD(bp, MISC_REG_GRC_TIMEOUT_ATTN);
3157 			BNX2X_ERR("GRC time-out 0x%08x\n", val);
3158 		}
3159 		if (attn & BNX2X_GRC_RSV) {
3160 			val = CHIP_IS_E1(bp) ? 0 :
3161 					REG_RD(bp, MISC_REG_GRC_RSV_ATTN);
3162 			BNX2X_ERR("GRC reserved 0x%08x\n", val);
3163 		}
3164 		REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL, 0x7ff);
3165 	}
3166 }
3167 
3168 #define BNX2X_MISC_GEN_REG      MISC_REG_GENERIC_POR_1
3169 #define LOAD_COUNTER_BITS	16 /* Number of bits for load counter */
3170 #define LOAD_COUNTER_MASK	(((u32)0x1 << LOAD_COUNTER_BITS) - 1)
3171 #define RESET_DONE_FLAG_MASK	(~LOAD_COUNTER_MASK)
3172 #define RESET_DONE_FLAG_SHIFT	LOAD_COUNTER_BITS
3173 
3174 /*
3175  * should be run under rtnl lock
3176  */
bnx2x_set_reset_done(struct bnx2x * bp)3177 static inline void bnx2x_set_reset_done(struct bnx2x *bp)
3178 {
3179 	u32 val	= REG_RD(bp, BNX2X_MISC_GEN_REG);
3180 	val &= ~(1 << RESET_DONE_FLAG_SHIFT);
3181 	REG_WR(bp, BNX2X_MISC_GEN_REG, val);
3182 	barrier();
3183 	mmiowb();
3184 }
3185 
3186 /*
3187  * should be run under rtnl lock
3188  */
bnx2x_set_reset_in_progress(struct bnx2x * bp)3189 static inline void bnx2x_set_reset_in_progress(struct bnx2x *bp)
3190 {
3191 	u32 val	= REG_RD(bp, BNX2X_MISC_GEN_REG);
3192 	val |= (1 << 16);
3193 	REG_WR(bp, BNX2X_MISC_GEN_REG, val);
3194 	barrier();
3195 	mmiowb();
3196 }
3197 
3198 /*
3199  * should be run under rtnl lock
3200  */
bnx2x_reset_is_done(struct bnx2x * bp)3201 bool bnx2x_reset_is_done(struct bnx2x *bp)
3202 {
3203 	u32 val	= REG_RD(bp, BNX2X_MISC_GEN_REG);
3204 	DP(NETIF_MSG_HW, "GEN_REG_VAL=0x%08x\n", val);
3205 	return (val & RESET_DONE_FLAG_MASK) ? false : true;
3206 }
3207 
3208 /*
3209  * should be run under rtnl lock
3210  */
bnx2x_inc_load_cnt(struct bnx2x * bp)3211 inline void bnx2x_inc_load_cnt(struct bnx2x *bp)
3212 {
3213 	u32 val1, val = REG_RD(bp, BNX2X_MISC_GEN_REG);
3214 
3215 	DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
3216 
3217 	val1 = ((val & LOAD_COUNTER_MASK) + 1) & LOAD_COUNTER_MASK;
3218 	REG_WR(bp, BNX2X_MISC_GEN_REG, (val & RESET_DONE_FLAG_MASK) | val1);
3219 	barrier();
3220 	mmiowb();
3221 }
3222 
3223 /*
3224  * should be run under rtnl lock
3225  */
bnx2x_dec_load_cnt(struct bnx2x * bp)3226 u32 bnx2x_dec_load_cnt(struct bnx2x *bp)
3227 {
3228 	u32 val1, val = REG_RD(bp, BNX2X_MISC_GEN_REG);
3229 
3230 	DP(NETIF_MSG_HW, "Old GEN_REG_VAL=0x%08x\n", val);
3231 
3232 	val1 = ((val & LOAD_COUNTER_MASK) - 1) & LOAD_COUNTER_MASK;
3233 	REG_WR(bp, BNX2X_MISC_GEN_REG, (val & RESET_DONE_FLAG_MASK) | val1);
3234 	barrier();
3235 	mmiowb();
3236 
3237 	return val1;
3238 }
3239 
3240 /*
3241  * should be run under rtnl lock
3242  */
bnx2x_get_load_cnt(struct bnx2x * bp)3243 static inline u32 bnx2x_get_load_cnt(struct bnx2x *bp)
3244 {
3245 	return REG_RD(bp, BNX2X_MISC_GEN_REG) & LOAD_COUNTER_MASK;
3246 }
3247 
bnx2x_clear_load_cnt(struct bnx2x * bp)3248 static inline void bnx2x_clear_load_cnt(struct bnx2x *bp)
3249 {
3250 	u32 val = REG_RD(bp, BNX2X_MISC_GEN_REG);
3251 	REG_WR(bp, BNX2X_MISC_GEN_REG, val & (~LOAD_COUNTER_MASK));
3252 }
3253 
_print_next_block(int idx,const char * blk)3254 static inline void _print_next_block(int idx, const char *blk)
3255 {
3256 	if (idx)
3257 		pr_cont(", ");
3258 	pr_cont("%s", blk);
3259 }
3260 
bnx2x_print_blocks_with_parity0(u32 sig,int par_num)3261 static inline int bnx2x_print_blocks_with_parity0(u32 sig, int par_num)
3262 {
3263 	int i = 0;
3264 	u32 cur_bit = 0;
3265 	for (i = 0; sig; i++) {
3266 		cur_bit = ((u32)0x1 << i);
3267 		if (sig & cur_bit) {
3268 			switch (cur_bit) {
3269 			case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
3270 				_print_next_block(par_num++, "BRB");
3271 				break;
3272 			case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
3273 				_print_next_block(par_num++, "PARSER");
3274 				break;
3275 			case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
3276 				_print_next_block(par_num++, "TSDM");
3277 				break;
3278 			case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
3279 				_print_next_block(par_num++, "SEARCHER");
3280 				break;
3281 			case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
3282 				_print_next_block(par_num++, "TSEMI");
3283 				break;
3284 			}
3285 
3286 			/* Clear the bit */
3287 			sig &= ~cur_bit;
3288 		}
3289 	}
3290 
3291 	return par_num;
3292 }
3293 
bnx2x_print_blocks_with_parity1(u32 sig,int par_num)3294 static inline int bnx2x_print_blocks_with_parity1(u32 sig, int par_num)
3295 {
3296 	int i = 0;
3297 	u32 cur_bit = 0;
3298 	for (i = 0; sig; i++) {
3299 		cur_bit = ((u32)0x1 << i);
3300 		if (sig & cur_bit) {
3301 			switch (cur_bit) {
3302 			case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
3303 				_print_next_block(par_num++, "PBCLIENT");
3304 				break;
3305 			case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR:
3306 				_print_next_block(par_num++, "QM");
3307 				break;
3308 			case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR:
3309 				_print_next_block(par_num++, "XSDM");
3310 				break;
3311 			case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR:
3312 				_print_next_block(par_num++, "XSEMI");
3313 				break;
3314 			case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR:
3315 				_print_next_block(par_num++, "DOORBELLQ");
3316 				break;
3317 			case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR:
3318 				_print_next_block(par_num++, "VAUX PCI CORE");
3319 				break;
3320 			case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR:
3321 				_print_next_block(par_num++, "DEBUG");
3322 				break;
3323 			case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR:
3324 				_print_next_block(par_num++, "USDM");
3325 				break;
3326 			case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
3327 				_print_next_block(par_num++, "USEMI");
3328 				break;
3329 			case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR:
3330 				_print_next_block(par_num++, "UPB");
3331 				break;
3332 			case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR:
3333 				_print_next_block(par_num++, "CSDM");
3334 				break;
3335 			}
3336 
3337 			/* Clear the bit */
3338 			sig &= ~cur_bit;
3339 		}
3340 	}
3341 
3342 	return par_num;
3343 }
3344 
bnx2x_print_blocks_with_parity2(u32 sig,int par_num)3345 static inline int bnx2x_print_blocks_with_parity2(u32 sig, int par_num)
3346 {
3347 	int i = 0;
3348 	u32 cur_bit = 0;
3349 	for (i = 0; sig; i++) {
3350 		cur_bit = ((u32)0x1 << i);
3351 		if (sig & cur_bit) {
3352 			switch (cur_bit) {
3353 			case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
3354 				_print_next_block(par_num++, "CSEMI");
3355 				break;
3356 			case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
3357 				_print_next_block(par_num++, "PXP");
3358 				break;
3359 			case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
3360 				_print_next_block(par_num++,
3361 					"PXPPCICLOCKCLIENT");
3362 				break;
3363 			case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
3364 				_print_next_block(par_num++, "CFC");
3365 				break;
3366 			case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
3367 				_print_next_block(par_num++, "CDU");
3368 				break;
3369 			case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
3370 				_print_next_block(par_num++, "IGU");
3371 				break;
3372 			case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
3373 				_print_next_block(par_num++, "MISC");
3374 				break;
3375 			}
3376 
3377 			/* Clear the bit */
3378 			sig &= ~cur_bit;
3379 		}
3380 	}
3381 
3382 	return par_num;
3383 }
3384 
bnx2x_print_blocks_with_parity3(u32 sig,int par_num)3385 static inline int bnx2x_print_blocks_with_parity3(u32 sig, int par_num)
3386 {
3387 	int i = 0;
3388 	u32 cur_bit = 0;
3389 	for (i = 0; sig; i++) {
3390 		cur_bit = ((u32)0x1 << i);
3391 		if (sig & cur_bit) {
3392 			switch (cur_bit) {
3393 			case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY:
3394 				_print_next_block(par_num++, "MCP ROM");
3395 				break;
3396 			case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY:
3397 				_print_next_block(par_num++, "MCP UMP RX");
3398 				break;
3399 			case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY:
3400 				_print_next_block(par_num++, "MCP UMP TX");
3401 				break;
3402 			case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY:
3403 				_print_next_block(par_num++, "MCP SCPAD");
3404 				break;
3405 			}
3406 
3407 			/* Clear the bit */
3408 			sig &= ~cur_bit;
3409 		}
3410 	}
3411 
3412 	return par_num;
3413 }
3414 
bnx2x_parity_attn(struct bnx2x * bp,u32 sig0,u32 sig1,u32 sig2,u32 sig3)3415 static inline bool bnx2x_parity_attn(struct bnx2x *bp, u32 sig0, u32 sig1,
3416 				     u32 sig2, u32 sig3)
3417 {
3418 	if ((sig0 & HW_PRTY_ASSERT_SET_0) || (sig1 & HW_PRTY_ASSERT_SET_1) ||
3419 	    (sig2 & HW_PRTY_ASSERT_SET_2) || (sig3 & HW_PRTY_ASSERT_SET_3)) {
3420 		int par_num = 0;
3421 		DP(NETIF_MSG_HW, "Was parity error: HW block parity attention: "
3422 			"[0]:0x%08x [1]:0x%08x "
3423 			"[2]:0x%08x [3]:0x%08x\n",
3424 			  sig0 & HW_PRTY_ASSERT_SET_0,
3425 			  sig1 & HW_PRTY_ASSERT_SET_1,
3426 			  sig2 & HW_PRTY_ASSERT_SET_2,
3427 			  sig3 & HW_PRTY_ASSERT_SET_3);
3428 		printk(KERN_ERR"%s: Parity errors detected in blocks: ",
3429 		       bp->dev->name);
3430 		par_num = bnx2x_print_blocks_with_parity0(
3431 			sig0 & HW_PRTY_ASSERT_SET_0, par_num);
3432 		par_num = bnx2x_print_blocks_with_parity1(
3433 			sig1 & HW_PRTY_ASSERT_SET_1, par_num);
3434 		par_num = bnx2x_print_blocks_with_parity2(
3435 			sig2 & HW_PRTY_ASSERT_SET_2, par_num);
3436 		par_num = bnx2x_print_blocks_with_parity3(
3437 			sig3 & HW_PRTY_ASSERT_SET_3, par_num);
3438 		printk("\n");
3439 		return true;
3440 	} else
3441 		return false;
3442 }
3443 
bnx2x_chk_parity_attn(struct bnx2x * bp)3444 bool bnx2x_chk_parity_attn(struct bnx2x *bp)
3445 {
3446 	struct attn_route attn;
3447 	int port = BP_PORT(bp);
3448 
3449 	attn.sig[0] = REG_RD(bp,
3450 		MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 +
3451 			     port*4);
3452 	attn.sig[1] = REG_RD(bp,
3453 		MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 +
3454 			     port*4);
3455 	attn.sig[2] = REG_RD(bp,
3456 		MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 +
3457 			     port*4);
3458 	attn.sig[3] = REG_RD(bp,
3459 		MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
3460 			     port*4);
3461 
3462 	return bnx2x_parity_attn(bp, attn.sig[0], attn.sig[1], attn.sig[2],
3463 					attn.sig[3]);
3464 }
3465 
3466 
bnx2x_attn_int_deasserted4(struct bnx2x * bp,u32 attn)3467 static inline void bnx2x_attn_int_deasserted4(struct bnx2x *bp, u32 attn)
3468 {
3469 	u32 val;
3470 	if (attn & AEU_INPUTS_ATTN_BITS_PGLUE_HW_INTERRUPT) {
3471 
3472 		val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS_CLR);
3473 		BNX2X_ERR("PGLUE hw attention 0x%x\n", val);
3474 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_ADDRESS_ERROR)
3475 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3476 				  "ADDRESS_ERROR\n");
3477 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_INCORRECT_RCV_BEHAVIOR)
3478 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3479 				  "INCORRECT_RCV_BEHAVIOR\n");
3480 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN)
3481 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3482 				  "WAS_ERROR_ATTN\n");
3483 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_VF_LENGTH_VIOLATION_ATTN)
3484 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3485 				  "VF_LENGTH_VIOLATION_ATTN\n");
3486 		if (val &
3487 		    PGLUE_B_PGLUE_B_INT_STS_REG_VF_GRC_SPACE_VIOLATION_ATTN)
3488 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3489 				  "VF_GRC_SPACE_VIOLATION_ATTN\n");
3490 		if (val &
3491 		    PGLUE_B_PGLUE_B_INT_STS_REG_VF_MSIX_BAR_VIOLATION_ATTN)
3492 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3493 				  "VF_MSIX_BAR_VIOLATION_ATTN\n");
3494 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_ERROR_ATTN)
3495 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3496 				  "TCPL_ERROR_ATTN\n");
3497 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_TCPL_IN_TWO_RCBS_ATTN)
3498 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3499 				  "TCPL_IN_TWO_RCBS_ATTN\n");
3500 		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_CSSNOOP_FIFO_OVERFLOW)
3501 			BNX2X_ERR("PGLUE_B_PGLUE_B_INT_STS_REG_"
3502 				  "CSSNOOP_FIFO_OVERFLOW\n");
3503 	}
3504 	if (attn & AEU_INPUTS_ATTN_BITS_ATC_HW_INTERRUPT) {
3505 		val = REG_RD(bp, ATC_REG_ATC_INT_STS_CLR);
3506 		BNX2X_ERR("ATC hw attention 0x%x\n", val);
3507 		if (val & ATC_ATC_INT_STS_REG_ADDRESS_ERROR)
3508 			BNX2X_ERR("ATC_ATC_INT_STS_REG_ADDRESS_ERROR\n");
3509 		if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_TO_NOT_PEND)
3510 			BNX2X_ERR("ATC_ATC_INT_STS_REG"
3511 				  "_ATC_TCPL_TO_NOT_PEND\n");
3512 		if (val & ATC_ATC_INT_STS_REG_ATC_GPA_MULTIPLE_HITS)
3513 			BNX2X_ERR("ATC_ATC_INT_STS_REG_"
3514 				  "ATC_GPA_MULTIPLE_HITS\n");
3515 		if (val & ATC_ATC_INT_STS_REG_ATC_RCPL_TO_EMPTY_CNT)
3516 			BNX2X_ERR("ATC_ATC_INT_STS_REG_"
3517 				  "ATC_RCPL_TO_EMPTY_CNT\n");
3518 		if (val & ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR)
3519 			BNX2X_ERR("ATC_ATC_INT_STS_REG_ATC_TCPL_ERROR\n");
3520 		if (val & ATC_ATC_INT_STS_REG_ATC_IREQ_LESS_THAN_STU)
3521 			BNX2X_ERR("ATC_ATC_INT_STS_REG_"
3522 				  "ATC_IREQ_LESS_THAN_STU\n");
3523 	}
3524 
3525 	if (attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
3526 		    AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)) {
3527 		BNX2X_ERR("FATAL parity attention set4 0x%x\n",
3528 		(u32)(attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
3529 		    AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)));
3530 	}
3531 
3532 }
3533 
bnx2x_attn_int_deasserted(struct bnx2x * bp,u32 deasserted)3534 static void bnx2x_attn_int_deasserted(struct bnx2x *bp, u32 deasserted)
3535 {
3536 	struct attn_route attn, *group_mask;
3537 	int port = BP_PORT(bp);
3538 	int index;
3539 	u32 reg_addr;
3540 	u32 val;
3541 	u32 aeu_mask;
3542 
3543 	/* need to take HW lock because MCP or other port might also
3544 	   try to handle this event */
3545 	bnx2x_acquire_alr(bp);
3546 
3547 	if (CHIP_PARITY_ENABLED(bp) && bnx2x_chk_parity_attn(bp)) {
3548 		bp->recovery_state = BNX2X_RECOVERY_INIT;
3549 		bnx2x_set_reset_in_progress(bp);
3550 		schedule_delayed_work(&bp->reset_task, 0);
3551 		/* Disable HW interrupts */
3552 		bnx2x_int_disable(bp);
3553 		bnx2x_release_alr(bp);
3554 		/* In case of parity errors don't handle attentions so that
3555 		 * other function would "see" parity errors.
3556 		 */
3557 		return;
3558 	}
3559 
3560 	attn.sig[0] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + port*4);
3561 	attn.sig[1] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_2_FUNC_0 + port*4);
3562 	attn.sig[2] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_3_FUNC_0 + port*4);
3563 	attn.sig[3] = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 + port*4);
3564 	if (CHIP_IS_E2(bp))
3565 		attn.sig[4] =
3566 		      REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_5_FUNC_0 + port*4);
3567 	else
3568 		attn.sig[4] = 0;
3569 
3570 	DP(NETIF_MSG_HW, "attn: %08x %08x %08x %08x %08x\n",
3571 	   attn.sig[0], attn.sig[1], attn.sig[2], attn.sig[3], attn.sig[4]);
3572 
3573 	for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
3574 		if (deasserted & (1 << index)) {
3575 			group_mask = &bp->attn_group[index];
3576 
3577 			DP(NETIF_MSG_HW, "group[%d]: %08x %08x "
3578 					 "%08x %08x %08x\n",
3579 			   index,
3580 			   group_mask->sig[0], group_mask->sig[1],
3581 			   group_mask->sig[2], group_mask->sig[3],
3582 			   group_mask->sig[4]);
3583 
3584 			bnx2x_attn_int_deasserted4(bp,
3585 					attn.sig[4] & group_mask->sig[4]);
3586 			bnx2x_attn_int_deasserted3(bp,
3587 					attn.sig[3] & group_mask->sig[3]);
3588 			bnx2x_attn_int_deasserted1(bp,
3589 					attn.sig[1] & group_mask->sig[1]);
3590 			bnx2x_attn_int_deasserted2(bp,
3591 					attn.sig[2] & group_mask->sig[2]);
3592 			bnx2x_attn_int_deasserted0(bp,
3593 					attn.sig[0] & group_mask->sig[0]);
3594 		}
3595 	}
3596 
3597 	bnx2x_release_alr(bp);
3598 
3599 	if (bp->common.int_block == INT_BLOCK_HC)
3600 		reg_addr = (HC_REG_COMMAND_REG + port*32 +
3601 			    COMMAND_REG_ATTN_BITS_CLR);
3602 	else
3603 		reg_addr = (BAR_IGU_INTMEM + IGU_CMD_ATTN_BIT_CLR_UPPER*8);
3604 
3605 	val = ~deasserted;
3606 	DP(NETIF_MSG_HW, "about to mask 0x%08x at %s addr 0x%x\n", val,
3607 	   (bp->common.int_block == INT_BLOCK_HC) ? "HC" : "IGU", reg_addr);
3608 	REG_WR(bp, reg_addr, val);
3609 
3610 	if (~bp->attn_state & deasserted)
3611 		BNX2X_ERR("IGU ERROR\n");
3612 
3613 	reg_addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
3614 			  MISC_REG_AEU_MASK_ATTN_FUNC_0;
3615 
3616 	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
3617 	aeu_mask = REG_RD(bp, reg_addr);
3618 
3619 	DP(NETIF_MSG_HW, "aeu_mask %x  newly deasserted %x\n",
3620 	   aeu_mask, deasserted);
3621 	aeu_mask |= (deasserted & 0x3ff);
3622 	DP(NETIF_MSG_HW, "new mask %x\n", aeu_mask);
3623 
3624 	REG_WR(bp, reg_addr, aeu_mask);
3625 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_PORT0_ATT_MASK + port);
3626 
3627 	DP(NETIF_MSG_HW, "attn_state %x\n", bp->attn_state);
3628 	bp->attn_state &= ~deasserted;
3629 	DP(NETIF_MSG_HW, "new state %x\n", bp->attn_state);
3630 }
3631 
bnx2x_attn_int(struct bnx2x * bp)3632 static void bnx2x_attn_int(struct bnx2x *bp)
3633 {
3634 	/* read local copy of bits */
3635 	u32 attn_bits = le32_to_cpu(bp->def_status_blk->atten_status_block.
3636 								attn_bits);
3637 	u32 attn_ack = le32_to_cpu(bp->def_status_blk->atten_status_block.
3638 								attn_bits_ack);
3639 	u32 attn_state = bp->attn_state;
3640 
3641 	/* look for changed bits */
3642 	u32 asserted   =  attn_bits & ~attn_ack & ~attn_state;
3643 	u32 deasserted = ~attn_bits &  attn_ack &  attn_state;
3644 
3645 	DP(NETIF_MSG_HW,
3646 	   "attn_bits %x  attn_ack %x  asserted %x  deasserted %x\n",
3647 	   attn_bits, attn_ack, asserted, deasserted);
3648 
3649 	if (~(attn_bits ^ attn_ack) & (attn_bits ^ attn_state))
3650 		BNX2X_ERR("BAD attention state\n");
3651 
3652 	/* handle bits that were raised */
3653 	if (asserted)
3654 		bnx2x_attn_int_asserted(bp, asserted);
3655 
3656 	if (deasserted)
3657 		bnx2x_attn_int_deasserted(bp, deasserted);
3658 }
3659 
bnx2x_update_eq_prod(struct bnx2x * bp,u16 prod)3660 static inline void bnx2x_update_eq_prod(struct bnx2x *bp, u16 prod)
3661 {
3662 	/* No memory barriers */
3663 	storm_memset_eq_prod(bp, prod, BP_FUNC(bp));
3664 	mmiowb(); /* keep prod updates ordered */
3665 }
3666 
3667 #ifdef BCM_CNIC
bnx2x_cnic_handle_cfc_del(struct bnx2x * bp,u32 cid,union event_ring_elem * elem)3668 static int  bnx2x_cnic_handle_cfc_del(struct bnx2x *bp, u32 cid,
3669 				      union event_ring_elem *elem)
3670 {
3671 	if (!bp->cnic_eth_dev.starting_cid  ||
3672 	    cid < bp->cnic_eth_dev.starting_cid)
3673 		return 1;
3674 
3675 	DP(BNX2X_MSG_SP, "got delete ramrod for CNIC CID %d\n", cid);
3676 
3677 	if (unlikely(elem->message.data.cfc_del_event.error)) {
3678 		BNX2X_ERR("got delete ramrod for CNIC CID %d with error!\n",
3679 			  cid);
3680 		bnx2x_panic_dump(bp);
3681 	}
3682 	bnx2x_cnic_cfc_comp(bp, cid);
3683 	return 0;
3684 }
3685 #endif
3686 
bnx2x_eq_int(struct bnx2x * bp)3687 static void bnx2x_eq_int(struct bnx2x *bp)
3688 {
3689 	u16 hw_cons, sw_cons, sw_prod;
3690 	union event_ring_elem *elem;
3691 	u32 cid;
3692 	u8 opcode;
3693 	int spqe_cnt = 0;
3694 
3695 	hw_cons = le16_to_cpu(*bp->eq_cons_sb);
3696 
3697 	/* The hw_cos range is 1-255, 257 - the sw_cons range is 0-254, 256.
3698 	 * when we get the the next-page we nned to adjust so the loop
3699 	 * condition below will be met. The next element is the size of a
3700 	 * regular element and hence incrementing by 1
3701 	 */
3702 	if ((hw_cons & EQ_DESC_MAX_PAGE) == EQ_DESC_MAX_PAGE)
3703 		hw_cons++;
3704 
3705 	/* This function may never run in parallel with itself for a
3706 	 * specific bp, thus there is no need in "paired" read memory
3707 	 * barrier here.
3708 	 */
3709 	sw_cons = bp->eq_cons;
3710 	sw_prod = bp->eq_prod;
3711 
3712 	DP(BNX2X_MSG_SP, "EQ:  hw_cons %u  sw_cons %u bp->cq_spq_left %u\n",
3713 			hw_cons, sw_cons, atomic_read(&bp->eq_spq_left));
3714 
3715 	for (; sw_cons != hw_cons;
3716 	      sw_prod = NEXT_EQ_IDX(sw_prod), sw_cons = NEXT_EQ_IDX(sw_cons)) {
3717 
3718 
3719 		elem = &bp->eq_ring[EQ_DESC(sw_cons)];
3720 
3721 		cid = SW_CID(elem->message.data.cfc_del_event.cid);
3722 		opcode = elem->message.opcode;
3723 
3724 
3725 		/* handle eq element */
3726 		switch (opcode) {
3727 		case EVENT_RING_OPCODE_STAT_QUERY:
3728 			DP(NETIF_MSG_TIMER, "got statistics comp event\n");
3729 			/* nothing to do with stats comp */
3730 			continue;
3731 
3732 		case EVENT_RING_OPCODE_CFC_DEL:
3733 			/* handle according to cid range */
3734 			/*
3735 			 * we may want to verify here that the bp state is
3736 			 * HALTING
3737 			 */
3738 			DP(NETIF_MSG_IFDOWN,
3739 			   "got delete ramrod for MULTI[%d]\n", cid);
3740 #ifdef BCM_CNIC
3741 			if (!bnx2x_cnic_handle_cfc_del(bp, cid, elem))
3742 				goto next_spqe;
3743 			if (cid == BNX2X_FCOE_ETH_CID)
3744 				bnx2x_fcoe(bp, state) = BNX2X_FP_STATE_CLOSED;
3745 			else
3746 #endif
3747 				bnx2x_fp(bp, cid, state) =
3748 						BNX2X_FP_STATE_CLOSED;
3749 
3750 			goto next_spqe;
3751 
3752 		case EVENT_RING_OPCODE_STOP_TRAFFIC:
3753 			DP(NETIF_MSG_IFUP, "got STOP TRAFFIC\n");
3754 			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED);
3755 			goto next_spqe;
3756 		case EVENT_RING_OPCODE_START_TRAFFIC:
3757 			DP(NETIF_MSG_IFUP, "got START TRAFFIC\n");
3758 			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED);
3759 			goto next_spqe;
3760 		}
3761 
3762 		switch (opcode | bp->state) {
3763 		case (EVENT_RING_OPCODE_FUNCTION_START |
3764 		      BNX2X_STATE_OPENING_WAIT4_PORT):
3765 			DP(NETIF_MSG_IFUP, "got setup ramrod\n");
3766 			bp->state = BNX2X_STATE_FUNC_STARTED;
3767 			break;
3768 
3769 		case (EVENT_RING_OPCODE_FUNCTION_STOP |
3770 		      BNX2X_STATE_CLOSING_WAIT4_HALT):
3771 			DP(NETIF_MSG_IFDOWN, "got halt ramrod\n");
3772 			bp->state = BNX2X_STATE_CLOSING_WAIT4_UNLOAD;
3773 			break;
3774 
3775 		case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_OPEN):
3776 		case (EVENT_RING_OPCODE_SET_MAC | BNX2X_STATE_DIAG):
3777 			DP(NETIF_MSG_IFUP, "got set mac ramrod\n");
3778 			if (elem->message.data.set_mac_event.echo)
3779 				bp->set_mac_pending = 0;
3780 			break;
3781 
3782 		case (EVENT_RING_OPCODE_SET_MAC |
3783 		      BNX2X_STATE_CLOSING_WAIT4_HALT):
3784 			DP(NETIF_MSG_IFDOWN, "got (un)set mac ramrod\n");
3785 			if (elem->message.data.set_mac_event.echo)
3786 				bp->set_mac_pending = 0;
3787 			break;
3788 		default:
3789 			/* unknown event log error and continue */
3790 			BNX2X_ERR("Unknown EQ event %d\n",
3791 				  elem->message.opcode);
3792 		}
3793 next_spqe:
3794 		spqe_cnt++;
3795 	} /* for */
3796 
3797 	smp_mb__before_atomic_inc();
3798 	atomic_add(spqe_cnt, &bp->eq_spq_left);
3799 
3800 	bp->eq_cons = sw_cons;
3801 	bp->eq_prod = sw_prod;
3802 	/* Make sure that above mem writes were issued towards the memory */
3803 	smp_wmb();
3804 
3805 	/* update producer */
3806 	bnx2x_update_eq_prod(bp, bp->eq_prod);
3807 }
3808 
bnx2x_sp_task(struct work_struct * work)3809 static void bnx2x_sp_task(struct work_struct *work)
3810 {
3811 	struct bnx2x *bp = container_of(work, struct bnx2x, sp_task.work);
3812 	u16 status;
3813 
3814 	/* Return here if interrupt is disabled */
3815 	if (unlikely(atomic_read(&bp->intr_sem) != 0)) {
3816 		DP(NETIF_MSG_INTR, "called but intr_sem not 0, returning\n");
3817 		return;
3818 	}
3819 
3820 	status = bnx2x_update_dsb_idx(bp);
3821 /*	if (status == 0)				     */
3822 /*		BNX2X_ERR("spurious slowpath interrupt!\n"); */
3823 
3824 	DP(NETIF_MSG_INTR, "got a slowpath interrupt (status 0x%x)\n", status);
3825 
3826 	/* HW attentions */
3827 	if (status & BNX2X_DEF_SB_ATT_IDX) {
3828 		bnx2x_attn_int(bp);
3829 		status &= ~BNX2X_DEF_SB_ATT_IDX;
3830 	}
3831 
3832 	/* SP events: STAT_QUERY and others */
3833 	if (status & BNX2X_DEF_SB_IDX) {
3834 #ifdef BCM_CNIC
3835 		struct bnx2x_fastpath *fp = bnx2x_fcoe_fp(bp);
3836 
3837 		if ((!NO_FCOE(bp)) &&
3838 			(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp)))
3839 			napi_schedule(&bnx2x_fcoe(bp, napi));
3840 #endif
3841 		/* Handle EQ completions */
3842 		bnx2x_eq_int(bp);
3843 
3844 		bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID,
3845 			le16_to_cpu(bp->def_idx), IGU_INT_NOP, 1);
3846 
3847 		status &= ~BNX2X_DEF_SB_IDX;
3848 	}
3849 
3850 	if (unlikely(status))
3851 		DP(NETIF_MSG_INTR, "got an unknown interrupt! (status 0x%x)\n",
3852 		   status);
3853 
3854 	bnx2x_ack_sb(bp, bp->igu_dsb_id, ATTENTION_ID,
3855 	     le16_to_cpu(bp->def_att_idx), IGU_INT_ENABLE, 1);
3856 }
3857 
bnx2x_msix_sp_int(int irq,void * dev_instance)3858 irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance)
3859 {
3860 	struct net_device *dev = dev_instance;
3861 	struct bnx2x *bp = netdev_priv(dev);
3862 
3863 	/* Return here if interrupt is disabled */
3864 	if (unlikely(atomic_read(&bp->intr_sem) != 0)) {
3865 		DP(NETIF_MSG_INTR, "called but intr_sem not 0, returning\n");
3866 		return IRQ_HANDLED;
3867 	}
3868 
3869 	bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0,
3870 		     IGU_INT_DISABLE, 0);
3871 
3872 #ifdef BNX2X_STOP_ON_ERROR
3873 	if (unlikely(bp->panic))
3874 		return IRQ_HANDLED;
3875 #endif
3876 
3877 #ifdef BCM_CNIC
3878 	{
3879 		struct cnic_ops *c_ops;
3880 
3881 		rcu_read_lock();
3882 		c_ops = rcu_dereference(bp->cnic_ops);
3883 		if (c_ops)
3884 			c_ops->cnic_handler(bp->cnic_data, NULL);
3885 		rcu_read_unlock();
3886 	}
3887 #endif
3888 	queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);
3889 
3890 	return IRQ_HANDLED;
3891 }
3892 
3893 /* end of slow path */
3894 
bnx2x_timer(unsigned long data)3895 static void bnx2x_timer(unsigned long data)
3896 {
3897 	struct bnx2x *bp = (struct bnx2x *) data;
3898 
3899 	if (!netif_running(bp->dev))
3900 		return;
3901 
3902 	if (atomic_read(&bp->intr_sem) != 0)
3903 		goto timer_restart;
3904 
3905 	if (poll) {
3906 		struct bnx2x_fastpath *fp = &bp->fp[0];
3907 		int rc;
3908 
3909 		bnx2x_tx_int(fp);
3910 		rc = bnx2x_rx_int(fp, 1000);
3911 	}
3912 
3913 	if (!BP_NOMCP(bp)) {
3914 		int mb_idx = BP_FW_MB_IDX(bp);
3915 		u32 drv_pulse;
3916 		u32 mcp_pulse;
3917 
3918 		++bp->fw_drv_pulse_wr_seq;
3919 		bp->fw_drv_pulse_wr_seq &= DRV_PULSE_SEQ_MASK;
3920 		/* TBD - add SYSTEM_TIME */
3921 		drv_pulse = bp->fw_drv_pulse_wr_seq;
3922 		SHMEM_WR(bp, func_mb[mb_idx].drv_pulse_mb, drv_pulse);
3923 
3924 		mcp_pulse = (SHMEM_RD(bp, func_mb[mb_idx].mcp_pulse_mb) &
3925 			     MCP_PULSE_SEQ_MASK);
3926 		/* The delta between driver pulse and mcp response
3927 		 * should be 1 (before mcp response) or 0 (after mcp response)
3928 		 */
3929 		if ((drv_pulse != mcp_pulse) &&
3930 		    (drv_pulse != ((mcp_pulse + 1) & MCP_PULSE_SEQ_MASK))) {
3931 			/* someone lost a heartbeat... */
3932 			BNX2X_ERR("drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
3933 				  drv_pulse, mcp_pulse);
3934 		}
3935 	}
3936 
3937 	if (bp->state == BNX2X_STATE_OPEN)
3938 		bnx2x_stats_handle(bp, STATS_EVENT_UPDATE);
3939 
3940 timer_restart:
3941 	mod_timer(&bp->timer, jiffies + bp->current_interval);
3942 }
3943 
3944 /* end of Statistics */
3945 
3946 /* nic init */
3947 
3948 /*
3949  * nic init service functions
3950  */
3951 
bnx2x_fill(struct bnx2x * bp,u32 addr,int fill,u32 len)3952 static inline void bnx2x_fill(struct bnx2x *bp, u32 addr, int fill, u32 len)
3953 {
3954 	u32 i;
3955 	if (!(len%4) && !(addr%4))
3956 		for (i = 0; i < len; i += 4)
3957 			REG_WR(bp, addr + i, fill);
3958 	else
3959 		for (i = 0; i < len; i++)
3960 			REG_WR8(bp, addr + i, fill);
3961 
3962 }
3963 
3964 /* helper: writes FP SP data to FW - data_size in dwords */
bnx2x_wr_fp_sb_data(struct bnx2x * bp,int fw_sb_id,u32 * sb_data_p,u32 data_size)3965 static inline void bnx2x_wr_fp_sb_data(struct bnx2x *bp,
3966 				       int fw_sb_id,
3967 				       u32 *sb_data_p,
3968 				       u32 data_size)
3969 {
3970 	int index;
3971 	for (index = 0; index < data_size; index++)
3972 		REG_WR(bp, BAR_CSTRORM_INTMEM +
3973 			CSTORM_STATUS_BLOCK_DATA_OFFSET(fw_sb_id) +
3974 			sizeof(u32)*index,
3975 			*(sb_data_p + index));
3976 }
3977 
bnx2x_zero_fp_sb(struct bnx2x * bp,int fw_sb_id)3978 static inline void bnx2x_zero_fp_sb(struct bnx2x *bp, int fw_sb_id)
3979 {
3980 	u32 *sb_data_p;
3981 	u32 data_size = 0;
3982 	struct hc_status_block_data_e2 sb_data_e2;
3983 	struct hc_status_block_data_e1x sb_data_e1x;
3984 
3985 	/* disable the function first */
3986 	if (CHIP_IS_E2(bp)) {
3987 		memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
3988 		sb_data_e2.common.p_func.pf_id = HC_FUNCTION_DISABLED;
3989 		sb_data_e2.common.p_func.vf_id = HC_FUNCTION_DISABLED;
3990 		sb_data_e2.common.p_func.vf_valid = false;
3991 		sb_data_p = (u32 *)&sb_data_e2;
3992 		data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
3993 	} else {
3994 		memset(&sb_data_e1x, 0,
3995 		       sizeof(struct hc_status_block_data_e1x));
3996 		sb_data_e1x.common.p_func.pf_id = HC_FUNCTION_DISABLED;
3997 		sb_data_e1x.common.p_func.vf_id = HC_FUNCTION_DISABLED;
3998 		sb_data_e1x.common.p_func.vf_valid = false;
3999 		sb_data_p = (u32 *)&sb_data_e1x;
4000 		data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
4001 	}
4002 	bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
4003 
4004 	bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
4005 			CSTORM_STATUS_BLOCK_OFFSET(fw_sb_id), 0,
4006 			CSTORM_STATUS_BLOCK_SIZE);
4007 	bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
4008 			CSTORM_SYNC_BLOCK_OFFSET(fw_sb_id), 0,
4009 			CSTORM_SYNC_BLOCK_SIZE);
4010 }
4011 
4012 /* helper:  writes SP SB data to FW */
bnx2x_wr_sp_sb_data(struct bnx2x * bp,struct hc_sp_status_block_data * sp_sb_data)4013 static inline void bnx2x_wr_sp_sb_data(struct bnx2x *bp,
4014 		struct hc_sp_status_block_data *sp_sb_data)
4015 {
4016 	int func = BP_FUNC(bp);
4017 	int i;
4018 	for (i = 0; i < sizeof(struct hc_sp_status_block_data)/sizeof(u32); i++)
4019 		REG_WR(bp, BAR_CSTRORM_INTMEM +
4020 			CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
4021 			i*sizeof(u32),
4022 			*((u32 *)sp_sb_data + i));
4023 }
4024 
bnx2x_zero_sp_sb(struct bnx2x * bp)4025 static inline void bnx2x_zero_sp_sb(struct bnx2x *bp)
4026 {
4027 	int func = BP_FUNC(bp);
4028 	struct hc_sp_status_block_data sp_sb_data;
4029 	memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
4030 
4031 	sp_sb_data.p_func.pf_id = HC_FUNCTION_DISABLED;
4032 	sp_sb_data.p_func.vf_id = HC_FUNCTION_DISABLED;
4033 	sp_sb_data.p_func.vf_valid = false;
4034 
4035 	bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
4036 
4037 	bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
4038 			CSTORM_SP_STATUS_BLOCK_OFFSET(func), 0,
4039 			CSTORM_SP_STATUS_BLOCK_SIZE);
4040 	bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
4041 			CSTORM_SP_SYNC_BLOCK_OFFSET(func), 0,
4042 			CSTORM_SP_SYNC_BLOCK_SIZE);
4043 
4044 }
4045 
4046 
4047 static inline
bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm * hc_sm,int igu_sb_id,int igu_seg_id)4048 void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
4049 					   int igu_sb_id, int igu_seg_id)
4050 {
4051 	hc_sm->igu_sb_id = igu_sb_id;
4052 	hc_sm->igu_seg_id = igu_seg_id;
4053 	hc_sm->timer_value = 0xFF;
4054 	hc_sm->time_to_expire = 0xFFFFFFFF;
4055 }
4056 
bnx2x_init_sb(struct bnx2x * bp,dma_addr_t mapping,int vfid,u8 vf_valid,int fw_sb_id,int igu_sb_id)4057 static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
4058 			  u8 vf_valid, int fw_sb_id, int igu_sb_id)
4059 {
4060 	int igu_seg_id;
4061 
4062 	struct hc_status_block_data_e2 sb_data_e2;
4063 	struct hc_status_block_data_e1x sb_data_e1x;
4064 	struct hc_status_block_sm  *hc_sm_p;
4065 	struct hc_index_data *hc_index_p;
4066 	int data_size;
4067 	u32 *sb_data_p;
4068 
4069 	if (CHIP_INT_MODE_IS_BC(bp))
4070 		igu_seg_id = HC_SEG_ACCESS_NORM;
4071 	else
4072 		igu_seg_id = IGU_SEG_ACCESS_NORM;
4073 
4074 	bnx2x_zero_fp_sb(bp, fw_sb_id);
4075 
4076 	if (CHIP_IS_E2(bp)) {
4077 		memset(&sb_data_e2, 0, sizeof(struct hc_status_block_data_e2));
4078 		sb_data_e2.common.p_func.pf_id = BP_FUNC(bp);
4079 		sb_data_e2.common.p_func.vf_id = vfid;
4080 		sb_data_e2.common.p_func.vf_valid = vf_valid;
4081 		sb_data_e2.common.p_func.vnic_id = BP_VN(bp);
4082 		sb_data_e2.common.same_igu_sb_1b = true;
4083 		sb_data_e2.common.host_sb_addr.hi = U64_HI(mapping);
4084 		sb_data_e2.common.host_sb_addr.lo = U64_LO(mapping);
4085 		hc_sm_p = sb_data_e2.common.state_machine;
4086 		hc_index_p = sb_data_e2.index_data;
4087 		sb_data_p = (u32 *)&sb_data_e2;
4088 		data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
4089 	} else {
4090 		memset(&sb_data_e1x, 0,
4091 		       sizeof(struct hc_status_block_data_e1x));
4092 		sb_data_e1x.common.p_func.pf_id = BP_FUNC(bp);
4093 		sb_data_e1x.common.p_func.vf_id = 0xff;
4094 		sb_data_e1x.common.p_func.vf_valid = false;
4095 		sb_data_e1x.common.p_func.vnic_id = BP_VN(bp);
4096 		sb_data_e1x.common.same_igu_sb_1b = true;
4097 		sb_data_e1x.common.host_sb_addr.hi = U64_HI(mapping);
4098 		sb_data_e1x.common.host_sb_addr.lo = U64_LO(mapping);
4099 		hc_sm_p = sb_data_e1x.common.state_machine;
4100 		hc_index_p = sb_data_e1x.index_data;
4101 		sb_data_p = (u32 *)&sb_data_e1x;
4102 		data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
4103 	}
4104 
4105 	bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_RX_ID],
4106 				       igu_sb_id, igu_seg_id);
4107 	bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_TX_ID],
4108 				       igu_sb_id, igu_seg_id);
4109 
4110 	DP(NETIF_MSG_HW, "Init FW SB %d\n", fw_sb_id);
4111 
4112 	/* write indecies to HW */
4113 	bnx2x_wr_fp_sb_data(bp, fw_sb_id, sb_data_p, data_size);
4114 }
4115 
bnx2x_update_coalesce_sb_index(struct bnx2x * bp,u16 fw_sb_id,u8 sb_index,u8 disable,u16 usec)4116 static void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u16 fw_sb_id,
4117 					u8 sb_index, u8 disable, u16 usec)
4118 {
4119 	int port = BP_PORT(bp);
4120 	u8 ticks = usec / BNX2X_BTR;
4121 
4122 	storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks);
4123 
4124 	disable = disable ? 1 : (usec ? 0 : 1);
4125 	storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable);
4126 }
4127 
bnx2x_update_coalesce_sb(struct bnx2x * bp,u16 fw_sb_id,u16 tx_usec,u16 rx_usec)4128 static void bnx2x_update_coalesce_sb(struct bnx2x *bp, u16 fw_sb_id,
4129 				     u16 tx_usec, u16 rx_usec)
4130 {
4131 	bnx2x_update_coalesce_sb_index(bp, fw_sb_id, U_SB_ETH_RX_CQ_INDEX,
4132 				    false, rx_usec);
4133 	bnx2x_update_coalesce_sb_index(bp, fw_sb_id, C_SB_ETH_TX_CQ_INDEX,
4134 				    false, tx_usec);
4135 }
4136 
bnx2x_init_def_sb(struct bnx2x * bp)4137 static void bnx2x_init_def_sb(struct bnx2x *bp)
4138 {
4139 	struct host_sp_status_block *def_sb = bp->def_status_blk;
4140 	dma_addr_t mapping = bp->def_status_blk_mapping;
4141 	int igu_sp_sb_index;
4142 	int igu_seg_id;
4143 	int port = BP_PORT(bp);
4144 	int func = BP_FUNC(bp);
4145 	int reg_offset;
4146 	u64 section;
4147 	int index;
4148 	struct hc_sp_status_block_data sp_sb_data;
4149 	memset(&sp_sb_data, 0, sizeof(struct hc_sp_status_block_data));
4150 
4151 	if (CHIP_INT_MODE_IS_BC(bp)) {
4152 		igu_sp_sb_index = DEF_SB_IGU_ID;
4153 		igu_seg_id = HC_SEG_ACCESS_DEF;
4154 	} else {
4155 		igu_sp_sb_index = bp->igu_dsb_id;
4156 		igu_seg_id = IGU_SEG_ACCESS_DEF;
4157 	}
4158 
4159 	/* ATTN */
4160 	section = ((u64)mapping) + offsetof(struct host_sp_status_block,
4161 					    atten_status_block);
4162 	def_sb->atten_status_block.status_block_id = igu_sp_sb_index;
4163 
4164 	bp->attn_state = 0;
4165 
4166 	reg_offset = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
4167 			     MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
4168 	for (index = 0; index < MAX_DYNAMIC_ATTN_GRPS; index++) {
4169 		int sindex;
4170 		/* take care of sig[0]..sig[4] */
4171 		for (sindex = 0; sindex < 4; sindex++)
4172 			bp->attn_group[index].sig[sindex] =
4173 			   REG_RD(bp, reg_offset + sindex*0x4 + 0x10*index);
4174 
4175 		if (CHIP_IS_E2(bp))
4176 			/*
4177 			 * enable5 is separate from the rest of the registers,
4178 			 * and therefore the address skip is 4
4179 			 * and not 16 between the different groups
4180 			 */
4181 			bp->attn_group[index].sig[4] = REG_RD(bp,
4182 					reg_offset + 0x10 + 0x4*index);
4183 		else
4184 			bp->attn_group[index].sig[4] = 0;
4185 	}
4186 
4187 	if (bp->common.int_block == INT_BLOCK_HC) {
4188 		reg_offset = (port ? HC_REG_ATTN_MSG1_ADDR_L :
4189 				     HC_REG_ATTN_MSG0_ADDR_L);
4190 
4191 		REG_WR(bp, reg_offset, U64_LO(section));
4192 		REG_WR(bp, reg_offset + 4, U64_HI(section));
4193 	} else if (CHIP_IS_E2(bp)) {
4194 		REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_L, U64_LO(section));
4195 		REG_WR(bp, IGU_REG_ATTN_MSG_ADDR_H, U64_HI(section));
4196 	}
4197 
4198 	section = ((u64)mapping) + offsetof(struct host_sp_status_block,
4199 					    sp_sb);
4200 
4201 	bnx2x_zero_sp_sb(bp);
4202 
4203 	sp_sb_data.host_sb_addr.lo	= U64_LO(section);
4204 	sp_sb_data.host_sb_addr.hi	= U64_HI(section);
4205 	sp_sb_data.igu_sb_id		= igu_sp_sb_index;
4206 	sp_sb_data.igu_seg_id		= igu_seg_id;
4207 	sp_sb_data.p_func.pf_id		= func;
4208 	sp_sb_data.p_func.vnic_id	= BP_VN(bp);
4209 	sp_sb_data.p_func.vf_id		= 0xff;
4210 
4211 	bnx2x_wr_sp_sb_data(bp, &sp_sb_data);
4212 
4213 	bp->stats_pending = 0;
4214 	bp->set_mac_pending = 0;
4215 
4216 	bnx2x_ack_sb(bp, bp->igu_dsb_id, USTORM_ID, 0, IGU_INT_ENABLE, 0);
4217 }
4218 
bnx2x_update_coalesce(struct bnx2x * bp)4219 void bnx2x_update_coalesce(struct bnx2x *bp)
4220 {
4221 	int i;
4222 
4223 	for_each_eth_queue(bp, i)
4224 		bnx2x_update_coalesce_sb(bp, bp->fp[i].fw_sb_id,
4225 					 bp->tx_ticks, bp->rx_ticks);
4226 }
4227 
bnx2x_init_sp_ring(struct bnx2x * bp)4228 static void bnx2x_init_sp_ring(struct bnx2x *bp)
4229 {
4230 	spin_lock_init(&bp->spq_lock);
4231 	atomic_set(&bp->cq_spq_left, MAX_SPQ_PENDING);
4232 
4233 	bp->spq_prod_idx = 0;
4234 	bp->dsb_sp_prod = BNX2X_SP_DSB_INDEX;
4235 	bp->spq_prod_bd = bp->spq;
4236 	bp->spq_last_bd = bp->spq_prod_bd + MAX_SP_DESC_CNT;
4237 }
4238 
bnx2x_init_eq_ring(struct bnx2x * bp)4239 static void bnx2x_init_eq_ring(struct bnx2x *bp)
4240 {
4241 	int i;
4242 	for (i = 1; i <= NUM_EQ_PAGES; i++) {
4243 		union event_ring_elem *elem =
4244 			&bp->eq_ring[EQ_DESC_CNT_PAGE * i - 1];
4245 
4246 		elem->next_page.addr.hi =
4247 			cpu_to_le32(U64_HI(bp->eq_mapping +
4248 				   BCM_PAGE_SIZE * (i % NUM_EQ_PAGES)));
4249 		elem->next_page.addr.lo =
4250 			cpu_to_le32(U64_LO(bp->eq_mapping +
4251 				   BCM_PAGE_SIZE*(i % NUM_EQ_PAGES)));
4252 	}
4253 	bp->eq_cons = 0;
4254 	bp->eq_prod = NUM_EQ_DESC;
4255 	bp->eq_cons_sb = BNX2X_EQ_INDEX;
4256 	/* we want a warning message before it gets rought... */
4257 	atomic_set(&bp->eq_spq_left,
4258 		min_t(int, MAX_SP_DESC_CNT - MAX_SPQ_PENDING, NUM_EQ_DESC) - 1);
4259 }
4260 
bnx2x_push_indir_table(struct bnx2x * bp)4261 void bnx2x_push_indir_table(struct bnx2x *bp)
4262 {
4263 	int func = BP_FUNC(bp);
4264 	int i;
4265 
4266 	if (bp->multi_mode == ETH_RSS_MODE_DISABLED)
4267 		return;
4268 
4269 	for (i = 0; i < TSTORM_INDIRECTION_TABLE_SIZE; i++)
4270 		REG_WR8(bp, BAR_TSTRORM_INTMEM +
4271 			TSTORM_INDIRECTION_TABLE_OFFSET(func) + i,
4272 			bp->fp->cl_id + bp->rx_indir_table[i]);
4273 }
4274 
bnx2x_init_ind_table(struct bnx2x * bp)4275 static void bnx2x_init_ind_table(struct bnx2x *bp)
4276 {
4277 	int i;
4278 
4279 	for (i = 0; i < TSTORM_INDIRECTION_TABLE_SIZE; i++)
4280 		bp->rx_indir_table[i] = i % BNX2X_NUM_ETH_QUEUES(bp);
4281 
4282 	bnx2x_push_indir_table(bp);
4283 }
4284 
bnx2x_set_storm_rx_mode(struct bnx2x * bp)4285 void bnx2x_set_storm_rx_mode(struct bnx2x *bp)
4286 {
4287 	int mode = bp->rx_mode;
4288 	int port = BP_PORT(bp);
4289 	u16 cl_id;
4290 	u32 def_q_filters = 0;
4291 
4292 	/* All but management unicast packets should pass to the host as well */
4293 	u32 llh_mask =
4294 		NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_BRCST |
4295 		NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_MLCST |
4296 		NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_VLAN |
4297 		NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_NO_VLAN;
4298 
4299 	switch (mode) {
4300 	case BNX2X_RX_MODE_NONE: /* no Rx */
4301 		def_q_filters = BNX2X_ACCEPT_NONE;
4302 #ifdef BCM_CNIC
4303 		if (!NO_FCOE(bp)) {
4304 			cl_id = bnx2x_fcoe(bp, cl_id);
4305 			bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_NONE);
4306 		}
4307 #endif
4308 		break;
4309 
4310 	case BNX2X_RX_MODE_NORMAL:
4311 		def_q_filters |= BNX2X_ACCEPT_UNICAST | BNX2X_ACCEPT_BROADCAST |
4312 				BNX2X_ACCEPT_MULTICAST;
4313 #ifdef BCM_CNIC
4314 		if (!NO_FCOE(bp)) {
4315 			cl_id = bnx2x_fcoe(bp, cl_id);
4316 			bnx2x_rxq_set_mac_filters(bp, cl_id,
4317 						  BNX2X_ACCEPT_UNICAST |
4318 						  BNX2X_ACCEPT_MULTICAST);
4319 		}
4320 #endif
4321 		break;
4322 
4323 	case BNX2X_RX_MODE_ALLMULTI:
4324 		def_q_filters |= BNX2X_ACCEPT_UNICAST | BNX2X_ACCEPT_BROADCAST |
4325 				BNX2X_ACCEPT_ALL_MULTICAST;
4326 #ifdef BCM_CNIC
4327 		/*
4328 		 *  Prevent duplication of multicast packets by configuring FCoE
4329 		 *  L2 Client to receive only matched unicast frames.
4330 		 */
4331 		if (!NO_FCOE(bp)) {
4332 			cl_id = bnx2x_fcoe(bp, cl_id);
4333 			bnx2x_rxq_set_mac_filters(bp, cl_id,
4334 						  BNX2X_ACCEPT_UNICAST);
4335 		}
4336 #endif
4337 		break;
4338 
4339 	case BNX2X_RX_MODE_PROMISC:
4340 		def_q_filters |= BNX2X_PROMISCUOUS_MODE;
4341 #ifdef BCM_CNIC
4342 		/*
4343 		 *  Prevent packets duplication by configuring DROP_ALL for FCoE
4344 		 *  L2 Client.
4345 		 */
4346 		if (!NO_FCOE(bp)) {
4347 			cl_id = bnx2x_fcoe(bp, cl_id);
4348 			bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_NONE);
4349 		}
4350 #endif
4351 		/* pass management unicast packets as well */
4352 		llh_mask |= NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_UNCST;
4353 		break;
4354 
4355 	default:
4356 		BNX2X_ERR("BAD rx mode (%d)\n", mode);
4357 		break;
4358 	}
4359 
4360 	cl_id = BP_L_ID(bp);
4361 	bnx2x_rxq_set_mac_filters(bp, cl_id, def_q_filters);
4362 
4363 	REG_WR(bp,
4364 	       (port ? NIG_REG_LLH1_BRB1_DRV_MASK :
4365 		       NIG_REG_LLH0_BRB1_DRV_MASK), llh_mask);
4366 
4367 	DP(NETIF_MSG_IFUP, "rx mode %d\n"
4368 		"drop_ucast 0x%x\ndrop_mcast 0x%x\ndrop_bcast 0x%x\n"
4369 		"accp_ucast 0x%x\naccp_mcast 0x%x\naccp_bcast 0x%x\n"
4370 		"unmatched_ucast 0x%x\n", mode,
4371 		bp->mac_filters.ucast_drop_all,
4372 		bp->mac_filters.mcast_drop_all,
4373 		bp->mac_filters.bcast_drop_all,
4374 		bp->mac_filters.ucast_accept_all,
4375 		bp->mac_filters.mcast_accept_all,
4376 		bp->mac_filters.bcast_accept_all,
4377 		bp->mac_filters.unmatched_unicast
4378 	);
4379 
4380 	storm_memset_mac_filters(bp, &bp->mac_filters, BP_FUNC(bp));
4381 }
4382 
bnx2x_init_internal_common(struct bnx2x * bp)4383 static void bnx2x_init_internal_common(struct bnx2x *bp)
4384 {
4385 	int i;
4386 
4387 	if (!CHIP_IS_E1(bp)) {
4388 
4389 		/* xstorm needs to know whether to add  ovlan to packets or not,
4390 		 * in switch-independent we'll write 0 to here... */
4391 		REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNCTION_MODE_OFFSET,
4392 			bp->mf_mode);
4393 		REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNCTION_MODE_OFFSET,
4394 			bp->mf_mode);
4395 		REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNCTION_MODE_OFFSET,
4396 			bp->mf_mode);
4397 		REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNCTION_MODE_OFFSET,
4398 			bp->mf_mode);
4399 	}
4400 
4401 	if (IS_MF_SI(bp))
4402 		/*
4403 		 * In switch independent mode, the TSTORM needs to accept
4404 		 * packets that failed classification, since approximate match
4405 		 * mac addresses aren't written to NIG LLH
4406 		 */
4407 		REG_WR8(bp, BAR_TSTRORM_INTMEM +
4408 			    TSTORM_ACCEPT_CLASSIFY_FAILED_OFFSET, 2);
4409 
4410 	/* Zero this manually as its initialization is
4411 	   currently missing in the initTool */
4412 	for (i = 0; i < (USTORM_AGG_DATA_SIZE >> 2); i++)
4413 		REG_WR(bp, BAR_USTRORM_INTMEM +
4414 		       USTORM_AGG_DATA_OFFSET + i * 4, 0);
4415 	if (CHIP_IS_E2(bp)) {
4416 		REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_IGU_MODE_OFFSET,
4417 			CHIP_INT_MODE_IS_BC(bp) ?
4418 			HC_IGU_BC_MODE : HC_IGU_NBC_MODE);
4419 	}
4420 }
4421 
bnx2x_init_internal_port(struct bnx2x * bp)4422 static void bnx2x_init_internal_port(struct bnx2x *bp)
4423 {
4424 	/* port */
4425 	bnx2x_dcb_init_intmem_pfc(bp);
4426 }
4427 
bnx2x_init_internal(struct bnx2x * bp,u32 load_code)4428 static void bnx2x_init_internal(struct bnx2x *bp, u32 load_code)
4429 {
4430 	switch (load_code) {
4431 	case FW_MSG_CODE_DRV_LOAD_COMMON:
4432 	case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
4433 		bnx2x_init_internal_common(bp);
4434 		/* no break */
4435 
4436 	case FW_MSG_CODE_DRV_LOAD_PORT:
4437 		bnx2x_init_internal_port(bp);
4438 		/* no break */
4439 
4440 	case FW_MSG_CODE_DRV_LOAD_FUNCTION:
4441 		/* internal memory per function is
4442 		   initialized inside bnx2x_pf_init */
4443 		break;
4444 
4445 	default:
4446 		BNX2X_ERR("Unknown load_code (0x%x) from MCP\n", load_code);
4447 		break;
4448 	}
4449 }
4450 
bnx2x_init_fp_sb(struct bnx2x * bp,int fp_idx)4451 static void bnx2x_init_fp_sb(struct bnx2x *bp, int fp_idx)
4452 {
4453 	struct bnx2x_fastpath *fp = &bp->fp[fp_idx];
4454 
4455 	fp->state = BNX2X_FP_STATE_CLOSED;
4456 
4457 	fp->index = fp->cid = fp_idx;
4458 	fp->cl_id = BP_L_ID(bp) + fp_idx;
4459 	fp->fw_sb_id = bp->base_fw_ndsb + fp->cl_id + CNIC_CONTEXT_USE;
4460 	fp->igu_sb_id = bp->igu_base_sb + fp_idx + CNIC_CONTEXT_USE;
4461 	/* qZone id equals to FW (per path) client id */
4462 	fp->cl_qzone_id  = fp->cl_id +
4463 			   BP_PORT(bp)*(CHIP_IS_E2(bp) ? ETH_MAX_RX_CLIENTS_E2 :
4464 				ETH_MAX_RX_CLIENTS_E1H);
4465 	/* init shortcut */
4466 	fp->ustorm_rx_prods_offset = CHIP_IS_E2(bp) ?
4467 			    USTORM_RX_PRODS_E2_OFFSET(fp->cl_qzone_id) :
4468 			    USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), fp->cl_id);
4469 	/* Setup SB indicies */
4470 	fp->rx_cons_sb = BNX2X_RX_SB_INDEX;
4471 	fp->tx_cons_sb = BNX2X_TX_SB_INDEX;
4472 
4473 	DP(NETIF_MSG_IFUP, "queue[%d]:  bnx2x_init_sb(%p,%p)  "
4474 				   "cl_id %d  fw_sb %d  igu_sb %d\n",
4475 		   fp_idx, bp, fp->status_blk.e1x_sb, fp->cl_id, fp->fw_sb_id,
4476 		   fp->igu_sb_id);
4477 	bnx2x_init_sb(bp, fp->status_blk_mapping, BNX2X_VF_ID_INVALID, false,
4478 		      fp->fw_sb_id, fp->igu_sb_id);
4479 
4480 	bnx2x_update_fpsb_idx(fp);
4481 }
4482 
bnx2x_nic_init(struct bnx2x * bp,u32 load_code)4483 void bnx2x_nic_init(struct bnx2x *bp, u32 load_code)
4484 {
4485 	int i;
4486 
4487 	for_each_eth_queue(bp, i)
4488 		bnx2x_init_fp_sb(bp, i);
4489 #ifdef BCM_CNIC
4490 	if (!NO_FCOE(bp))
4491 		bnx2x_init_fcoe_fp(bp);
4492 
4493 	bnx2x_init_sb(bp, bp->cnic_sb_mapping,
4494 		      BNX2X_VF_ID_INVALID, false,
4495 		      CNIC_SB_ID(bp), CNIC_IGU_SB_ID(bp));
4496 
4497 #endif
4498 
4499 	/* ensure status block indices were read */
4500 	rmb();
4501 
4502 	bnx2x_init_def_sb(bp);
4503 	bnx2x_update_dsb_idx(bp);
4504 	bnx2x_init_rx_rings(bp);
4505 	bnx2x_init_tx_rings(bp);
4506 	bnx2x_init_sp_ring(bp);
4507 	bnx2x_init_eq_ring(bp);
4508 	bnx2x_init_internal(bp, load_code);
4509 	bnx2x_pf_init(bp);
4510 	bnx2x_init_ind_table(bp);
4511 	bnx2x_stats_init(bp);
4512 
4513 	/* At this point, we are ready for interrupts */
4514 	atomic_set(&bp->intr_sem, 0);
4515 
4516 	/* flush all before enabling interrupts */
4517 	mb();
4518 	mmiowb();
4519 
4520 	bnx2x_int_enable(bp);
4521 
4522 	/* Check for SPIO5 */
4523 	bnx2x_attn_int_deasserted0(bp,
4524 		REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_1_FUNC_0 + BP_PORT(bp)*4) &
4525 				   AEU_INPUTS_ATTN_BITS_SPIO5);
4526 }
4527 
4528 /* end of nic init */
4529 
4530 /*
4531  * gzip service functions
4532  */
4533 
bnx2x_gunzip_init(struct bnx2x * bp)4534 static int bnx2x_gunzip_init(struct bnx2x *bp)
4535 {
4536 	bp->gunzip_buf = dma_alloc_coherent(&bp->pdev->dev, FW_BUF_SIZE,
4537 					    &bp->gunzip_mapping, GFP_KERNEL);
4538 	if (bp->gunzip_buf  == NULL)
4539 		goto gunzip_nomem1;
4540 
4541 	bp->strm = kmalloc(sizeof(*bp->strm), GFP_KERNEL);
4542 	if (bp->strm  == NULL)
4543 		goto gunzip_nomem2;
4544 
4545 	bp->strm->workspace = kmalloc(zlib_inflate_workspacesize(),
4546 				      GFP_KERNEL);
4547 	if (bp->strm->workspace == NULL)
4548 		goto gunzip_nomem3;
4549 
4550 	return 0;
4551 
4552 gunzip_nomem3:
4553 	kfree(bp->strm);
4554 	bp->strm = NULL;
4555 
4556 gunzip_nomem2:
4557 	dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
4558 			  bp->gunzip_mapping);
4559 	bp->gunzip_buf = NULL;
4560 
4561 gunzip_nomem1:
4562 	netdev_err(bp->dev, "Cannot allocate firmware buffer for"
4563 	       " un-compression\n");
4564 	return -ENOMEM;
4565 }
4566 
bnx2x_gunzip_end(struct bnx2x * bp)4567 static void bnx2x_gunzip_end(struct bnx2x *bp)
4568 {
4569 	kfree(bp->strm->workspace);
4570 	kfree(bp->strm);
4571 	bp->strm = NULL;
4572 
4573 	if (bp->gunzip_buf) {
4574 		dma_free_coherent(&bp->pdev->dev, FW_BUF_SIZE, bp->gunzip_buf,
4575 				  bp->gunzip_mapping);
4576 		bp->gunzip_buf = NULL;
4577 	}
4578 }
4579 
bnx2x_gunzip(struct bnx2x * bp,const u8 * zbuf,int len)4580 static int bnx2x_gunzip(struct bnx2x *bp, const u8 *zbuf, int len)
4581 {
4582 	int n, rc;
4583 
4584 	/* check gzip header */
4585 	if ((zbuf[0] != 0x1f) || (zbuf[1] != 0x8b) || (zbuf[2] != Z_DEFLATED)) {
4586 		BNX2X_ERR("Bad gzip header\n");
4587 		return -EINVAL;
4588 	}
4589 
4590 	n = 10;
4591 
4592 #define FNAME				0x8
4593 
4594 	if (zbuf[3] & FNAME)
4595 		while ((zbuf[n++] != 0) && (n < len));
4596 
4597 	bp->strm->next_in = (typeof(bp->strm->next_in))zbuf + n;
4598 	bp->strm->avail_in = len - n;
4599 	bp->strm->next_out = bp->gunzip_buf;
4600 	bp->strm->avail_out = FW_BUF_SIZE;
4601 
4602 	rc = zlib_inflateInit2(bp->strm, -MAX_WBITS);
4603 	if (rc != Z_OK)
4604 		return rc;
4605 
4606 	rc = zlib_inflate(bp->strm, Z_FINISH);
4607 	if ((rc != Z_OK) && (rc != Z_STREAM_END))
4608 		netdev_err(bp->dev, "Firmware decompression error: %s\n",
4609 			   bp->strm->msg);
4610 
4611 	bp->gunzip_outlen = (FW_BUF_SIZE - bp->strm->avail_out);
4612 	if (bp->gunzip_outlen & 0x3)
4613 		netdev_err(bp->dev, "Firmware decompression error:"
4614 				    " gunzip_outlen (%d) not aligned\n",
4615 				bp->gunzip_outlen);
4616 	bp->gunzip_outlen >>= 2;
4617 
4618 	zlib_inflateEnd(bp->strm);
4619 
4620 	if (rc == Z_STREAM_END)
4621 		return 0;
4622 
4623 	return rc;
4624 }
4625 
4626 /* nic load/unload */
4627 
4628 /*
4629  * General service functions
4630  */
4631 
4632 /* send a NIG loopback debug packet */
bnx2x_lb_pckt(struct bnx2x * bp)4633 static void bnx2x_lb_pckt(struct bnx2x *bp)
4634 {
4635 	u32 wb_write[3];
4636 
4637 	/* Ethernet source and destination addresses */
4638 	wb_write[0] = 0x55555555;
4639 	wb_write[1] = 0x55555555;
4640 	wb_write[2] = 0x20;		/* SOP */
4641 	REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
4642 
4643 	/* NON-IP protocol */
4644 	wb_write[0] = 0x09000000;
4645 	wb_write[1] = 0x55555555;
4646 	wb_write[2] = 0x10;		/* EOP, eop_bvalid = 0 */
4647 	REG_WR_DMAE(bp, NIG_REG_DEBUG_PACKET_LB, wb_write, 3);
4648 }
4649 
4650 /* some of the internal memories
4651  * are not directly readable from the driver
4652  * to test them we send debug packets
4653  */
bnx2x_int_mem_test(struct bnx2x * bp)4654 static int bnx2x_int_mem_test(struct bnx2x *bp)
4655 {
4656 	int factor;
4657 	int count, i;
4658 	u32 val = 0;
4659 
4660 	if (CHIP_REV_IS_FPGA(bp))
4661 		factor = 120;
4662 	else if (CHIP_REV_IS_EMUL(bp))
4663 		factor = 200;
4664 	else
4665 		factor = 1;
4666 
4667 	/* Disable inputs of parser neighbor blocks */
4668 	REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
4669 	REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
4670 	REG_WR(bp, CFC_REG_DEBUG0, 0x1);
4671 	REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
4672 
4673 	/*  Write 0 to parser credits for CFC search request */
4674 	REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
4675 
4676 	/* send Ethernet packet */
4677 	bnx2x_lb_pckt(bp);
4678 
4679 	/* TODO do i reset NIG statistic? */
4680 	/* Wait until NIG register shows 1 packet of size 0x10 */
4681 	count = 1000 * factor;
4682 	while (count) {
4683 
4684 		bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
4685 		val = *bnx2x_sp(bp, wb_data[0]);
4686 		if (val == 0x10)
4687 			break;
4688 
4689 		msleep(10);
4690 		count--;
4691 	}
4692 	if (val != 0x10) {
4693 		BNX2X_ERR("NIG timeout  val = 0x%x\n", val);
4694 		return -1;
4695 	}
4696 
4697 	/* Wait until PRS register shows 1 packet */
4698 	count = 1000 * factor;
4699 	while (count) {
4700 		val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
4701 		if (val == 1)
4702 			break;
4703 
4704 		msleep(10);
4705 		count--;
4706 	}
4707 	if (val != 0x1) {
4708 		BNX2X_ERR("PRS timeout val = 0x%x\n", val);
4709 		return -2;
4710 	}
4711 
4712 	/* Reset and init BRB, PRS */
4713 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
4714 	msleep(50);
4715 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
4716 	msleep(50);
4717 	bnx2x_init_block(bp, BRB1_BLOCK, COMMON_STAGE);
4718 	bnx2x_init_block(bp, PRS_BLOCK, COMMON_STAGE);
4719 
4720 	DP(NETIF_MSG_HW, "part2\n");
4721 
4722 	/* Disable inputs of parser neighbor blocks */
4723 	REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x0);
4724 	REG_WR(bp, TCM_REG_PRS_IFEN, 0x0);
4725 	REG_WR(bp, CFC_REG_DEBUG0, 0x1);
4726 	REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x0);
4727 
4728 	/* Write 0 to parser credits for CFC search request */
4729 	REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x0);
4730 
4731 	/* send 10 Ethernet packets */
4732 	for (i = 0; i < 10; i++)
4733 		bnx2x_lb_pckt(bp);
4734 
4735 	/* Wait until NIG register shows 10 + 1
4736 	   packets of size 11*0x10 = 0xb0 */
4737 	count = 1000 * factor;
4738 	while (count) {
4739 
4740 		bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
4741 		val = *bnx2x_sp(bp, wb_data[0]);
4742 		if (val == 0xb0)
4743 			break;
4744 
4745 		msleep(10);
4746 		count--;
4747 	}
4748 	if (val != 0xb0) {
4749 		BNX2X_ERR("NIG timeout  val = 0x%x\n", val);
4750 		return -3;
4751 	}
4752 
4753 	/* Wait until PRS register shows 2 packets */
4754 	val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
4755 	if (val != 2)
4756 		BNX2X_ERR("PRS timeout  val = 0x%x\n", val);
4757 
4758 	/* Write 1 to parser credits for CFC search request */
4759 	REG_WR(bp, PRS_REG_CFC_SEARCH_INITIAL_CREDIT, 0x1);
4760 
4761 	/* Wait until PRS register shows 3 packets */
4762 	msleep(10 * factor);
4763 	/* Wait until NIG register shows 1 packet of size 0x10 */
4764 	val = REG_RD(bp, PRS_REG_NUM_OF_PACKETS);
4765 	if (val != 3)
4766 		BNX2X_ERR("PRS timeout  val = 0x%x\n", val);
4767 
4768 	/* clear NIG EOP FIFO */
4769 	for (i = 0; i < 11; i++)
4770 		REG_RD(bp, NIG_REG_INGRESS_EOP_LB_FIFO);
4771 	val = REG_RD(bp, NIG_REG_INGRESS_EOP_LB_EMPTY);
4772 	if (val != 1) {
4773 		BNX2X_ERR("clear of NIG failed\n");
4774 		return -4;
4775 	}
4776 
4777 	/* Reset and init BRB, PRS, NIG */
4778 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, 0x03);
4779 	msleep(50);
4780 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0x03);
4781 	msleep(50);
4782 	bnx2x_init_block(bp, BRB1_BLOCK, COMMON_STAGE);
4783 	bnx2x_init_block(bp, PRS_BLOCK, COMMON_STAGE);
4784 #ifndef BCM_CNIC
4785 	/* set NIC mode */
4786 	REG_WR(bp, PRS_REG_NIC_MODE, 1);
4787 #endif
4788 
4789 	/* Enable inputs of parser neighbor blocks */
4790 	REG_WR(bp, TSDM_REG_ENABLE_IN1, 0x7fffffff);
4791 	REG_WR(bp, TCM_REG_PRS_IFEN, 0x1);
4792 	REG_WR(bp, CFC_REG_DEBUG0, 0x0);
4793 	REG_WR(bp, NIG_REG_PRS_REQ_IN_EN, 0x1);
4794 
4795 	DP(NETIF_MSG_HW, "done\n");
4796 
4797 	return 0; /* OK */
4798 }
4799 
bnx2x_enable_blocks_attention(struct bnx2x * bp)4800 static void bnx2x_enable_blocks_attention(struct bnx2x *bp)
4801 {
4802 	REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
4803 	if (CHIP_IS_E2(bp))
4804 		REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0x40);
4805 	else
4806 		REG_WR(bp, PXP_REG_PXP_INT_MASK_1, 0);
4807 	REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
4808 	REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
4809 	/*
4810 	 * mask read length error interrupts in brb for parser
4811 	 * (parsing unit and 'checksum and crc' unit)
4812 	 * these errors are legal (PU reads fixed length and CAC can cause
4813 	 * read length error on truncated packets)
4814 	 */
4815 	REG_WR(bp, BRB1_REG_BRB1_INT_MASK, 0xFC00);
4816 	REG_WR(bp, QM_REG_QM_INT_MASK, 0);
4817 	REG_WR(bp, TM_REG_TM_INT_MASK, 0);
4818 	REG_WR(bp, XSDM_REG_XSDM_INT_MASK_0, 0);
4819 	REG_WR(bp, XSDM_REG_XSDM_INT_MASK_1, 0);
4820 	REG_WR(bp, XCM_REG_XCM_INT_MASK, 0);
4821 /*	REG_WR(bp, XSEM_REG_XSEM_INT_MASK_0, 0); */
4822 /*	REG_WR(bp, XSEM_REG_XSEM_INT_MASK_1, 0); */
4823 	REG_WR(bp, USDM_REG_USDM_INT_MASK_0, 0);
4824 	REG_WR(bp, USDM_REG_USDM_INT_MASK_1, 0);
4825 	REG_WR(bp, UCM_REG_UCM_INT_MASK, 0);
4826 /*	REG_WR(bp, USEM_REG_USEM_INT_MASK_0, 0); */
4827 /*	REG_WR(bp, USEM_REG_USEM_INT_MASK_1, 0); */
4828 	REG_WR(bp, GRCBASE_UPB + PB_REG_PB_INT_MASK, 0);
4829 	REG_WR(bp, CSDM_REG_CSDM_INT_MASK_0, 0);
4830 	REG_WR(bp, CSDM_REG_CSDM_INT_MASK_1, 0);
4831 	REG_WR(bp, CCM_REG_CCM_INT_MASK, 0);
4832 /*	REG_WR(bp, CSEM_REG_CSEM_INT_MASK_0, 0); */
4833 /*	REG_WR(bp, CSEM_REG_CSEM_INT_MASK_1, 0); */
4834 
4835 	if (CHIP_REV_IS_FPGA(bp))
4836 		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x580000);
4837 	else if (CHIP_IS_E2(bp))
4838 		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0,
4839 			   (PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_OF
4840 				| PXP2_PXP2_INT_MASK_0_REG_PGL_CPL_AFT
4841 				| PXP2_PXP2_INT_MASK_0_REG_PGL_PCIE_ATTN
4842 				| PXP2_PXP2_INT_MASK_0_REG_PGL_READ_BLOCKED
4843 				| PXP2_PXP2_INT_MASK_0_REG_PGL_WRITE_BLOCKED));
4844 	else
4845 		REG_WR(bp, PXP2_REG_PXP2_INT_MASK_0, 0x480000);
4846 	REG_WR(bp, TSDM_REG_TSDM_INT_MASK_0, 0);
4847 	REG_WR(bp, TSDM_REG_TSDM_INT_MASK_1, 0);
4848 	REG_WR(bp, TCM_REG_TCM_INT_MASK, 0);
4849 /*	REG_WR(bp, TSEM_REG_TSEM_INT_MASK_0, 0); */
4850 /*	REG_WR(bp, TSEM_REG_TSEM_INT_MASK_1, 0); */
4851 	REG_WR(bp, CDU_REG_CDU_INT_MASK, 0);
4852 	REG_WR(bp, DMAE_REG_DMAE_INT_MASK, 0);
4853 /*	REG_WR(bp, MISC_REG_MISC_INT_MASK, 0); */
4854 	REG_WR(bp, PBF_REG_PBF_INT_MASK, 0x18);		/* bit 3,4 masked */
4855 }
4856 
bnx2x_reset_common(struct bnx2x * bp)4857 static void bnx2x_reset_common(struct bnx2x *bp)
4858 {
4859 	/* reset_common */
4860 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
4861 	       0xd3ffff7f);
4862 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
4863 }
4864 
bnx2x_init_pxp(struct bnx2x * bp)4865 static void bnx2x_init_pxp(struct bnx2x *bp)
4866 {
4867 	u16 devctl;
4868 	int r_order, w_order;
4869 
4870 	pci_read_config_word(bp->pdev,
4871 			     bp->pcie_cap + PCI_EXP_DEVCTL, &devctl);
4872 	DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
4873 	w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
4874 	if (bp->mrrs == -1)
4875 		r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
4876 	else {
4877 		DP(NETIF_MSG_HW, "force read order to %d\n", bp->mrrs);
4878 		r_order = bp->mrrs;
4879 	}
4880 
4881 	bnx2x_init_pxp_arb(bp, r_order, w_order);
4882 }
4883 
bnx2x_setup_fan_failure_detection(struct bnx2x * bp)4884 static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp)
4885 {
4886 	int is_required;
4887 	u32 val;
4888 	int port;
4889 
4890 	if (BP_NOMCP(bp))
4891 		return;
4892 
4893 	is_required = 0;
4894 	val = SHMEM_RD(bp, dev_info.shared_hw_config.config2) &
4895 	      SHARED_HW_CFG_FAN_FAILURE_MASK;
4896 
4897 	if (val == SHARED_HW_CFG_FAN_FAILURE_ENABLED)
4898 		is_required = 1;
4899 
4900 	/*
4901 	 * The fan failure mechanism is usually related to the PHY type since
4902 	 * the power consumption of the board is affected by the PHY. Currently,
4903 	 * fan is required for most designs with SFX7101, BCM8727 and BCM8481.
4904 	 */
4905 	else if (val == SHARED_HW_CFG_FAN_FAILURE_PHY_TYPE)
4906 		for (port = PORT_0; port < PORT_MAX; port++) {
4907 			is_required |=
4908 				bnx2x_fan_failure_det_req(
4909 					bp,
4910 					bp->common.shmem_base,
4911 					bp->common.shmem2_base,
4912 					port);
4913 		}
4914 
4915 	DP(NETIF_MSG_HW, "fan detection setting: %d\n", is_required);
4916 
4917 	if (is_required == 0)
4918 		return;
4919 
4920 	/* Fan failure is indicated by SPIO 5 */
4921 	bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
4922 		       MISC_REGISTERS_SPIO_INPUT_HI_Z);
4923 
4924 	/* set to active low mode */
4925 	val = REG_RD(bp, MISC_REG_SPIO_INT);
4926 	val |= ((1 << MISC_REGISTERS_SPIO_5) <<
4927 					MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
4928 	REG_WR(bp, MISC_REG_SPIO_INT, val);
4929 
4930 	/* enable interrupt to signal the IGU */
4931 	val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
4932 	val |= (1 << MISC_REGISTERS_SPIO_5);
4933 	REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
4934 }
4935 
bnx2x_pretend_func(struct bnx2x * bp,u8 pretend_func_num)4936 static void bnx2x_pretend_func(struct bnx2x *bp, u8 pretend_func_num)
4937 {
4938 	u32 offset = 0;
4939 
4940 	if (CHIP_IS_E1(bp))
4941 		return;
4942 	if (CHIP_IS_E1H(bp) && (pretend_func_num >= E1H_FUNC_MAX))
4943 		return;
4944 
4945 	switch (BP_ABS_FUNC(bp)) {
4946 	case 0:
4947 		offset = PXP2_REG_PGL_PRETEND_FUNC_F0;
4948 		break;
4949 	case 1:
4950 		offset = PXP2_REG_PGL_PRETEND_FUNC_F1;
4951 		break;
4952 	case 2:
4953 		offset = PXP2_REG_PGL_PRETEND_FUNC_F2;
4954 		break;
4955 	case 3:
4956 		offset = PXP2_REG_PGL_PRETEND_FUNC_F3;
4957 		break;
4958 	case 4:
4959 		offset = PXP2_REG_PGL_PRETEND_FUNC_F4;
4960 		break;
4961 	case 5:
4962 		offset = PXP2_REG_PGL_PRETEND_FUNC_F5;
4963 		break;
4964 	case 6:
4965 		offset = PXP2_REG_PGL_PRETEND_FUNC_F6;
4966 		break;
4967 	case 7:
4968 		offset = PXP2_REG_PGL_PRETEND_FUNC_F7;
4969 		break;
4970 	default:
4971 		return;
4972 	}
4973 
4974 	REG_WR(bp, offset, pretend_func_num);
4975 	REG_RD(bp, offset);
4976 	DP(NETIF_MSG_HW, "Pretending to func %d\n", pretend_func_num);
4977 }
4978 
bnx2x_pf_disable(struct bnx2x * bp)4979 static void bnx2x_pf_disable(struct bnx2x *bp)
4980 {
4981 	u32 val = REG_RD(bp, IGU_REG_PF_CONFIGURATION);
4982 	val &= ~IGU_PF_CONF_FUNC_EN;
4983 
4984 	REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
4985 	REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0);
4986 	REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 0);
4987 }
4988 
bnx2x_init_hw_common(struct bnx2x * bp,u32 load_code)4989 static int bnx2x_init_hw_common(struct bnx2x *bp, u32 load_code)
4990 {
4991 	u32 val, i;
4992 
4993 	DP(BNX2X_MSG_MCP, "starting common init  func %d\n", BP_ABS_FUNC(bp));
4994 
4995 	bnx2x_reset_common(bp);
4996 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, 0xffffffff);
4997 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, 0xfffc);
4998 
4999 	bnx2x_init_block(bp, MISC_BLOCK, COMMON_STAGE);
5000 	if (!CHIP_IS_E1(bp))
5001 		REG_WR(bp, MISC_REG_E1HMF_MODE, IS_MF(bp));
5002 
5003 	if (CHIP_IS_E2(bp)) {
5004 		u8 fid;
5005 
5006 		/**
5007 		 * 4-port mode or 2-port mode we need to turn of master-enable
5008 		 * for everyone, after that, turn it back on for self.
5009 		 * so, we disregard multi-function or not, and always disable
5010 		 * for all functions on the given path, this means 0,2,4,6 for
5011 		 * path 0 and 1,3,5,7 for path 1
5012 		 */
5013 		for (fid = BP_PATH(bp); fid  < E2_FUNC_MAX*2; fid += 2) {
5014 			if (fid == BP_ABS_FUNC(bp)) {
5015 				REG_WR(bp,
5016 				    PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER,
5017 				    1);
5018 				continue;
5019 			}
5020 
5021 			bnx2x_pretend_func(bp, fid);
5022 			/* clear pf enable */
5023 			bnx2x_pf_disable(bp);
5024 			bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
5025 		}
5026 	}
5027 
5028 	bnx2x_init_block(bp, PXP_BLOCK, COMMON_STAGE);
5029 	if (CHIP_IS_E1(bp)) {
5030 		/* enable HW interrupt from PXP on USDM overflow
5031 		   bit 16 on INT_MASK_0 */
5032 		REG_WR(bp, PXP_REG_PXP_INT_MASK_0, 0);
5033 	}
5034 
5035 	bnx2x_init_block(bp, PXP2_BLOCK, COMMON_STAGE);
5036 	bnx2x_init_pxp(bp);
5037 
5038 #ifdef __BIG_ENDIAN
5039 	REG_WR(bp, PXP2_REG_RQ_QM_ENDIAN_M, 1);
5040 	REG_WR(bp, PXP2_REG_RQ_TM_ENDIAN_M, 1);
5041 	REG_WR(bp, PXP2_REG_RQ_SRC_ENDIAN_M, 1);
5042 	REG_WR(bp, PXP2_REG_RQ_CDU_ENDIAN_M, 1);
5043 	REG_WR(bp, PXP2_REG_RQ_DBG_ENDIAN_M, 1);
5044 	/* make sure this value is 0 */
5045 	REG_WR(bp, PXP2_REG_RQ_HC_ENDIAN_M, 0);
5046 
5047 /*	REG_WR(bp, PXP2_REG_RD_PBF_SWAP_MODE, 1); */
5048 	REG_WR(bp, PXP2_REG_RD_QM_SWAP_MODE, 1);
5049 	REG_WR(bp, PXP2_REG_RD_TM_SWAP_MODE, 1);
5050 	REG_WR(bp, PXP2_REG_RD_SRC_SWAP_MODE, 1);
5051 	REG_WR(bp, PXP2_REG_RD_CDURD_SWAP_MODE, 1);
5052 #endif
5053 
5054 	bnx2x_ilt_init_page_size(bp, INITOP_SET);
5055 
5056 	if (CHIP_REV_IS_FPGA(bp) && CHIP_IS_E1H(bp))
5057 		REG_WR(bp, PXP2_REG_PGL_TAGS_LIMIT, 0x1);
5058 
5059 	/* let the HW do it's magic ... */
5060 	msleep(100);
5061 	/* finish PXP init */
5062 	val = REG_RD(bp, PXP2_REG_RQ_CFG_DONE);
5063 	if (val != 1) {
5064 		BNX2X_ERR("PXP2 CFG failed\n");
5065 		return -EBUSY;
5066 	}
5067 	val = REG_RD(bp, PXP2_REG_RD_INIT_DONE);
5068 	if (val != 1) {
5069 		BNX2X_ERR("PXP2 RD_INIT failed\n");
5070 		return -EBUSY;
5071 	}
5072 
5073 	/* Timers bug workaround E2 only. We need to set the entire ILT to
5074 	 * have entries with value "0" and valid bit on.
5075 	 * This needs to be done by the first PF that is loaded in a path
5076 	 * (i.e. common phase)
5077 	 */
5078 	if (CHIP_IS_E2(bp)) {
5079 		struct ilt_client_info ilt_cli;
5080 		struct bnx2x_ilt ilt;
5081 		memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
5082 		memset(&ilt, 0, sizeof(struct bnx2x_ilt));
5083 
5084 		/* initialize dummy TM client */
5085 		ilt_cli.start = 0;
5086 		ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
5087 		ilt_cli.client_num = ILT_CLIENT_TM;
5088 
5089 		/* Step 1: set zeroes to all ilt page entries with valid bit on
5090 		 * Step 2: set the timers first/last ilt entry to point
5091 		 * to the entire range to prevent ILT range error for 3rd/4th
5092 		 * vnic	(this code assumes existence of the vnic)
5093 		 *
5094 		 * both steps performed by call to bnx2x_ilt_client_init_op()
5095 		 * with dummy TM client
5096 		 *
5097 		 * we must use pretend since PXP2_REG_RQ_##blk##_FIRST_ILT
5098 		 * and his brother are split registers
5099 		 */
5100 		bnx2x_pretend_func(bp, (BP_PATH(bp) + 6));
5101 		bnx2x_ilt_client_init_op_ilt(bp, &ilt, &ilt_cli, INITOP_CLEAR);
5102 		bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
5103 
5104 		REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN, BNX2X_PXP_DRAM_ALIGN);
5105 		REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_RD, BNX2X_PXP_DRAM_ALIGN);
5106 		REG_WR(bp, PXP2_REG_RQ_DRAM_ALIGN_SEL, 1);
5107 	}
5108 
5109 
5110 	REG_WR(bp, PXP2_REG_RQ_DISABLE_INPUTS, 0);
5111 	REG_WR(bp, PXP2_REG_RD_DISABLE_INPUTS, 0);
5112 
5113 	if (CHIP_IS_E2(bp)) {
5114 		int factor = CHIP_REV_IS_EMUL(bp) ? 1000 :
5115 				(CHIP_REV_IS_FPGA(bp) ? 400 : 0);
5116 		bnx2x_init_block(bp, PGLUE_B_BLOCK, COMMON_STAGE);
5117 
5118 		bnx2x_init_block(bp, ATC_BLOCK, COMMON_STAGE);
5119 
5120 		/* let the HW do it's magic ... */
5121 		do {
5122 			msleep(200);
5123 			val = REG_RD(bp, ATC_REG_ATC_INIT_DONE);
5124 		} while (factor-- && (val != 1));
5125 
5126 		if (val != 1) {
5127 			BNX2X_ERR("ATC_INIT failed\n");
5128 			return -EBUSY;
5129 		}
5130 	}
5131 
5132 	bnx2x_init_block(bp, DMAE_BLOCK, COMMON_STAGE);
5133 
5134 	/* clean the DMAE memory */
5135 	bp->dmae_ready = 1;
5136 	bnx2x_init_fill(bp, TSEM_REG_PRAM, 0, 8);
5137 
5138 	bnx2x_init_block(bp, TCM_BLOCK, COMMON_STAGE);
5139 	bnx2x_init_block(bp, UCM_BLOCK, COMMON_STAGE);
5140 	bnx2x_init_block(bp, CCM_BLOCK, COMMON_STAGE);
5141 	bnx2x_init_block(bp, XCM_BLOCK, COMMON_STAGE);
5142 
5143 	bnx2x_read_dmae(bp, XSEM_REG_PASSIVE_BUFFER, 3);
5144 	bnx2x_read_dmae(bp, CSEM_REG_PASSIVE_BUFFER, 3);
5145 	bnx2x_read_dmae(bp, TSEM_REG_PASSIVE_BUFFER, 3);
5146 	bnx2x_read_dmae(bp, USEM_REG_PASSIVE_BUFFER, 3);
5147 
5148 	bnx2x_init_block(bp, QM_BLOCK, COMMON_STAGE);
5149 
5150 	if (CHIP_MODE_IS_4_PORT(bp))
5151 		bnx2x_init_block(bp, QM_4PORT_BLOCK, COMMON_STAGE);
5152 
5153 	/* QM queues pointers table */
5154 	bnx2x_qm_init_ptr_table(bp, bp->qm_cid_count, INITOP_SET);
5155 
5156 	/* soft reset pulse */
5157 	REG_WR(bp, QM_REG_SOFT_RESET, 1);
5158 	REG_WR(bp, QM_REG_SOFT_RESET, 0);
5159 
5160 #ifdef BCM_CNIC
5161 	bnx2x_init_block(bp, TIMERS_BLOCK, COMMON_STAGE);
5162 #endif
5163 
5164 	bnx2x_init_block(bp, DQ_BLOCK, COMMON_STAGE);
5165 	REG_WR(bp, DORQ_REG_DPM_CID_OFST, BNX2X_DB_SHIFT);
5166 
5167 	if (!CHIP_REV_IS_SLOW(bp)) {
5168 		/* enable hw interrupt from doorbell Q */
5169 		REG_WR(bp, DORQ_REG_DORQ_INT_MASK, 0);
5170 	}
5171 
5172 	bnx2x_init_block(bp, BRB1_BLOCK, COMMON_STAGE);
5173 	if (CHIP_MODE_IS_4_PORT(bp)) {
5174 		REG_WR(bp, BRB1_REG_FULL_LB_XOFF_THRESHOLD, 248);
5175 		REG_WR(bp, BRB1_REG_FULL_LB_XON_THRESHOLD, 328);
5176 	}
5177 
5178 	bnx2x_init_block(bp, PRS_BLOCK, COMMON_STAGE);
5179 	REG_WR(bp, PRS_REG_A_PRSU_20, 0xf);
5180 #ifndef BCM_CNIC
5181 	/* set NIC mode */
5182 	REG_WR(bp, PRS_REG_NIC_MODE, 1);
5183 #endif
5184 	if (!CHIP_IS_E1(bp))
5185 		REG_WR(bp, PRS_REG_E1HOV_MODE, IS_MF_SD(bp));
5186 
5187 	if (CHIP_IS_E2(bp)) {
5188 		/* Bit-map indicating which L2 hdrs may appear after the
5189 		   basic Ethernet header */
5190 		int has_ovlan = IS_MF_SD(bp);
5191 		REG_WR(bp, PRS_REG_HDRS_AFTER_BASIC, (has_ovlan ? 7 : 6));
5192 		REG_WR(bp, PRS_REG_MUST_HAVE_HDRS, (has_ovlan ? 1 : 0));
5193 	}
5194 
5195 	bnx2x_init_block(bp, TSDM_BLOCK, COMMON_STAGE);
5196 	bnx2x_init_block(bp, CSDM_BLOCK, COMMON_STAGE);
5197 	bnx2x_init_block(bp, USDM_BLOCK, COMMON_STAGE);
5198 	bnx2x_init_block(bp, XSDM_BLOCK, COMMON_STAGE);
5199 
5200 	bnx2x_init_fill(bp, TSEM_REG_FAST_MEMORY, 0, STORM_INTMEM_SIZE(bp));
5201 	bnx2x_init_fill(bp, USEM_REG_FAST_MEMORY, 0, STORM_INTMEM_SIZE(bp));
5202 	bnx2x_init_fill(bp, CSEM_REG_FAST_MEMORY, 0, STORM_INTMEM_SIZE(bp));
5203 	bnx2x_init_fill(bp, XSEM_REG_FAST_MEMORY, 0, STORM_INTMEM_SIZE(bp));
5204 
5205 	bnx2x_init_block(bp, TSEM_BLOCK, COMMON_STAGE);
5206 	bnx2x_init_block(bp, USEM_BLOCK, COMMON_STAGE);
5207 	bnx2x_init_block(bp, CSEM_BLOCK, COMMON_STAGE);
5208 	bnx2x_init_block(bp, XSEM_BLOCK, COMMON_STAGE);
5209 
5210 	if (CHIP_MODE_IS_4_PORT(bp))
5211 		bnx2x_init_block(bp, XSEM_4PORT_BLOCK, COMMON_STAGE);
5212 
5213 	/* sync semi rtc */
5214 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
5215 	       0x80000000);
5216 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
5217 	       0x80000000);
5218 
5219 	bnx2x_init_block(bp, UPB_BLOCK, COMMON_STAGE);
5220 	bnx2x_init_block(bp, XPB_BLOCK, COMMON_STAGE);
5221 	bnx2x_init_block(bp, PBF_BLOCK, COMMON_STAGE);
5222 
5223 	if (CHIP_IS_E2(bp)) {
5224 		int has_ovlan = IS_MF_SD(bp);
5225 		REG_WR(bp, PBF_REG_HDRS_AFTER_BASIC, (has_ovlan ? 7 : 6));
5226 		REG_WR(bp, PBF_REG_MUST_HAVE_HDRS, (has_ovlan ? 1 : 0));
5227 	}
5228 
5229 	REG_WR(bp, SRC_REG_SOFT_RST, 1);
5230 	for (i = SRC_REG_KEYRSS0_0; i <= SRC_REG_KEYRSS1_9; i += 4)
5231 		REG_WR(bp, i, random32());
5232 
5233 	bnx2x_init_block(bp, SRCH_BLOCK, COMMON_STAGE);
5234 #ifdef BCM_CNIC
5235 	REG_WR(bp, SRC_REG_KEYSEARCH_0, 0x63285672);
5236 	REG_WR(bp, SRC_REG_KEYSEARCH_1, 0x24b8f2cc);
5237 	REG_WR(bp, SRC_REG_KEYSEARCH_2, 0x223aef9b);
5238 	REG_WR(bp, SRC_REG_KEYSEARCH_3, 0x26001e3a);
5239 	REG_WR(bp, SRC_REG_KEYSEARCH_4, 0x7ae91116);
5240 	REG_WR(bp, SRC_REG_KEYSEARCH_5, 0x5ce5230b);
5241 	REG_WR(bp, SRC_REG_KEYSEARCH_6, 0x298d8adf);
5242 	REG_WR(bp, SRC_REG_KEYSEARCH_7, 0x6eb0ff09);
5243 	REG_WR(bp, SRC_REG_KEYSEARCH_8, 0x1830f82f);
5244 	REG_WR(bp, SRC_REG_KEYSEARCH_9, 0x01e46be7);
5245 #endif
5246 	REG_WR(bp, SRC_REG_SOFT_RST, 0);
5247 
5248 	if (sizeof(union cdu_context) != 1024)
5249 		/* we currently assume that a context is 1024 bytes */
5250 		dev_alert(&bp->pdev->dev, "please adjust the size "
5251 					  "of cdu_context(%ld)\n",
5252 			 (long)sizeof(union cdu_context));
5253 
5254 	bnx2x_init_block(bp, CDU_BLOCK, COMMON_STAGE);
5255 	val = (4 << 24) + (0 << 12) + 1024;
5256 	REG_WR(bp, CDU_REG_CDU_GLOBAL_PARAMS, val);
5257 
5258 	bnx2x_init_block(bp, CFC_BLOCK, COMMON_STAGE);
5259 	REG_WR(bp, CFC_REG_INIT_REG, 0x7FF);
5260 	/* enable context validation interrupt from CFC */
5261 	REG_WR(bp, CFC_REG_CFC_INT_MASK, 0);
5262 
5263 	/* set the thresholds to prevent CFC/CDU race */
5264 	REG_WR(bp, CFC_REG_DEBUG0, 0x20020000);
5265 
5266 	bnx2x_init_block(bp, HC_BLOCK, COMMON_STAGE);
5267 
5268 	if (CHIP_IS_E2(bp) && BP_NOMCP(bp))
5269 		REG_WR(bp, IGU_REG_RESET_MEMORIES, 0x36);
5270 
5271 	bnx2x_init_block(bp, IGU_BLOCK, COMMON_STAGE);
5272 	bnx2x_init_block(bp, MISC_AEU_BLOCK, COMMON_STAGE);
5273 
5274 	bnx2x_init_block(bp, PXPCS_BLOCK, COMMON_STAGE);
5275 	/* Reset PCIE errors for debug */
5276 	REG_WR(bp, 0x2814, 0xffffffff);
5277 	REG_WR(bp, 0x3820, 0xffffffff);
5278 
5279 	if (CHIP_IS_E2(bp)) {
5280 		REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_CONTROL_5,
5281 			   (PXPCS_TL_CONTROL_5_ERR_UNSPPORT1 |
5282 				PXPCS_TL_CONTROL_5_ERR_UNSPPORT));
5283 		REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC345_STAT,
5284 			   (PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT4 |
5285 				PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT3 |
5286 				PXPCS_TL_FUNC345_STAT_ERR_UNSPPORT2));
5287 		REG_WR(bp, PCICFG_OFFSET + PXPCS_TL_FUNC678_STAT,
5288 			   (PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT7 |
5289 				PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT6 |
5290 				PXPCS_TL_FUNC678_STAT_ERR_UNSPPORT5));
5291 	}
5292 
5293 	bnx2x_init_block(bp, EMAC0_BLOCK, COMMON_STAGE);
5294 	bnx2x_init_block(bp, EMAC1_BLOCK, COMMON_STAGE);
5295 	bnx2x_init_block(bp, DBU_BLOCK, COMMON_STAGE);
5296 	bnx2x_init_block(bp, DBG_BLOCK, COMMON_STAGE);
5297 
5298 	bnx2x_init_block(bp, NIG_BLOCK, COMMON_STAGE);
5299 	if (!CHIP_IS_E1(bp)) {
5300 		REG_WR(bp, NIG_REG_LLH_MF_MODE, IS_MF(bp));
5301 		REG_WR(bp, NIG_REG_LLH_E1HOV_MODE, IS_MF_SD(bp));
5302 	}
5303 	if (CHIP_IS_E2(bp)) {
5304 		/* Bit-map indicating which L2 hdrs may appear after the
5305 		   basic Ethernet header */
5306 		REG_WR(bp, NIG_REG_P0_HDRS_AFTER_BASIC, (IS_MF_SD(bp) ? 7 : 6));
5307 	}
5308 
5309 	if (CHIP_REV_IS_SLOW(bp))
5310 		msleep(200);
5311 
5312 	/* finish CFC init */
5313 	val = reg_poll(bp, CFC_REG_LL_INIT_DONE, 1, 100, 10);
5314 	if (val != 1) {
5315 		BNX2X_ERR("CFC LL_INIT failed\n");
5316 		return -EBUSY;
5317 	}
5318 	val = reg_poll(bp, CFC_REG_AC_INIT_DONE, 1, 100, 10);
5319 	if (val != 1) {
5320 		BNX2X_ERR("CFC AC_INIT failed\n");
5321 		return -EBUSY;
5322 	}
5323 	val = reg_poll(bp, CFC_REG_CAM_INIT_DONE, 1, 100, 10);
5324 	if (val != 1) {
5325 		BNX2X_ERR("CFC CAM_INIT failed\n");
5326 		return -EBUSY;
5327 	}
5328 	REG_WR(bp, CFC_REG_DEBUG0, 0);
5329 
5330 	if (CHIP_IS_E1(bp)) {
5331 		/* read NIG statistic
5332 		   to see if this is our first up since powerup */
5333 		bnx2x_read_dmae(bp, NIG_REG_STAT2_BRB_OCTET, 2);
5334 		val = *bnx2x_sp(bp, wb_data[0]);
5335 
5336 		/* do internal memory self test */
5337 		if ((val == 0) && bnx2x_int_mem_test(bp)) {
5338 			BNX2X_ERR("internal mem self test failed\n");
5339 			return -EBUSY;
5340 		}
5341 	}
5342 
5343 	bnx2x_setup_fan_failure_detection(bp);
5344 
5345 	/* clear PXP2 attentions */
5346 	REG_RD(bp, PXP2_REG_PXP2_INT_STS_CLR_0);
5347 
5348 	bnx2x_enable_blocks_attention(bp);
5349 	if (CHIP_PARITY_ENABLED(bp))
5350 		bnx2x_enable_blocks_parity(bp);
5351 
5352 	if (!BP_NOMCP(bp)) {
5353 		/* In E2 2-PORT mode, same ext phy is used for the two paths */
5354 		if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) ||
5355 		    CHIP_IS_E1x(bp)) {
5356 			u32 shmem_base[2], shmem2_base[2];
5357 			shmem_base[0] =  bp->common.shmem_base;
5358 			shmem2_base[0] = bp->common.shmem2_base;
5359 			if (CHIP_IS_E2(bp)) {
5360 				shmem_base[1] =
5361 					SHMEM2_RD(bp, other_shmem_base_addr);
5362 				shmem2_base[1] =
5363 					SHMEM2_RD(bp, other_shmem2_base_addr);
5364 			}
5365 			bnx2x_acquire_phy_lock(bp);
5366 			bnx2x_common_init_phy(bp, shmem_base, shmem2_base,
5367 					      bp->common.chip_id);
5368 			bnx2x_release_phy_lock(bp);
5369 		}
5370 	} else
5371 		BNX2X_ERR("Bootcode is missing - can not initialize link\n");
5372 
5373 	return 0;
5374 }
5375 
bnx2x_init_hw_port(struct bnx2x * bp)5376 static int bnx2x_init_hw_port(struct bnx2x *bp)
5377 {
5378 	int port = BP_PORT(bp);
5379 	int init_stage = port ? PORT1_STAGE : PORT0_STAGE;
5380 	u32 low, high;
5381 	u32 val;
5382 
5383 	DP(BNX2X_MSG_MCP, "starting port init  port %d\n", port);
5384 
5385 	REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
5386 
5387 	bnx2x_init_block(bp, PXP_BLOCK, init_stage);
5388 	bnx2x_init_block(bp, PXP2_BLOCK, init_stage);
5389 
5390 	/* Timers bug workaround: disables the pf_master bit in pglue at
5391 	 * common phase, we need to enable it here before any dmae access are
5392 	 * attempted. Therefore we manually added the enable-master to the
5393 	 * port phase (it also happens in the function phase)
5394 	 */
5395 	if (CHIP_IS_E2(bp))
5396 		REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
5397 
5398 	bnx2x_init_block(bp, TCM_BLOCK, init_stage);
5399 	bnx2x_init_block(bp, UCM_BLOCK, init_stage);
5400 	bnx2x_init_block(bp, CCM_BLOCK, init_stage);
5401 	bnx2x_init_block(bp, XCM_BLOCK, init_stage);
5402 
5403 	/* QM cid (connection) count */
5404 	bnx2x_qm_init_cid_count(bp, bp->qm_cid_count, INITOP_SET);
5405 
5406 #ifdef BCM_CNIC
5407 	bnx2x_init_block(bp, TIMERS_BLOCK, init_stage);
5408 	REG_WR(bp, TM_REG_LIN0_SCAN_TIME + port*4, 20);
5409 	REG_WR(bp, TM_REG_LIN0_MAX_ACTIVE_CID + port*4, 31);
5410 #endif
5411 
5412 	bnx2x_init_block(bp, DQ_BLOCK, init_stage);
5413 
5414 	if (CHIP_MODE_IS_4_PORT(bp))
5415 		bnx2x_init_block(bp, QM_4PORT_BLOCK, init_stage);
5416 
5417 	if (CHIP_IS_E1(bp) || CHIP_IS_E1H(bp)) {
5418 		bnx2x_init_block(bp, BRB1_BLOCK, init_stage);
5419 		if (CHIP_REV_IS_SLOW(bp) && CHIP_IS_E1(bp)) {
5420 			/* no pause for emulation and FPGA */
5421 			low = 0;
5422 			high = 513;
5423 		} else {
5424 			if (IS_MF(bp))
5425 				low = ((bp->flags & ONE_PORT_FLAG) ? 160 : 246);
5426 			else if (bp->dev->mtu > 4096) {
5427 				if (bp->flags & ONE_PORT_FLAG)
5428 					low = 160;
5429 				else {
5430 					val = bp->dev->mtu;
5431 					/* (24*1024 + val*4)/256 */
5432 					low = 96 + (val/64) +
5433 							((val % 64) ? 1 : 0);
5434 				}
5435 			} else
5436 				low = ((bp->flags & ONE_PORT_FLAG) ? 80 : 160);
5437 			high = low + 56;	/* 14*1024/256 */
5438 		}
5439 		REG_WR(bp, BRB1_REG_PAUSE_LOW_THRESHOLD_0 + port*4, low);
5440 		REG_WR(bp, BRB1_REG_PAUSE_HIGH_THRESHOLD_0 + port*4, high);
5441 	}
5442 
5443 	if (CHIP_MODE_IS_4_PORT(bp)) {
5444 		REG_WR(bp, BRB1_REG_PAUSE_0_XOFF_THRESHOLD_0 + port*8, 248);
5445 		REG_WR(bp, BRB1_REG_PAUSE_0_XON_THRESHOLD_0 + port*8, 328);
5446 		REG_WR(bp, (BP_PORT(bp) ? BRB1_REG_MAC_GUARANTIED_1 :
5447 					  BRB1_REG_MAC_GUARANTIED_0), 40);
5448 	}
5449 
5450 	bnx2x_init_block(bp, PRS_BLOCK, init_stage);
5451 
5452 	bnx2x_init_block(bp, TSDM_BLOCK, init_stage);
5453 	bnx2x_init_block(bp, CSDM_BLOCK, init_stage);
5454 	bnx2x_init_block(bp, USDM_BLOCK, init_stage);
5455 	bnx2x_init_block(bp, XSDM_BLOCK, init_stage);
5456 
5457 	bnx2x_init_block(bp, TSEM_BLOCK, init_stage);
5458 	bnx2x_init_block(bp, USEM_BLOCK, init_stage);
5459 	bnx2x_init_block(bp, CSEM_BLOCK, init_stage);
5460 	bnx2x_init_block(bp, XSEM_BLOCK, init_stage);
5461 	if (CHIP_MODE_IS_4_PORT(bp))
5462 		bnx2x_init_block(bp, XSEM_4PORT_BLOCK, init_stage);
5463 
5464 	bnx2x_init_block(bp, UPB_BLOCK, init_stage);
5465 	bnx2x_init_block(bp, XPB_BLOCK, init_stage);
5466 
5467 	bnx2x_init_block(bp, PBF_BLOCK, init_stage);
5468 
5469 	if (!CHIP_IS_E2(bp)) {
5470 		/* configure PBF to work without PAUSE mtu 9000 */
5471 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
5472 
5473 		/* update threshold */
5474 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, (9040/16));
5475 		/* update init credit */
5476 		REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, (9040/16) + 553 - 22);
5477 
5478 		/* probe changes */
5479 		REG_WR(bp, PBF_REG_INIT_P0 + port*4, 1);
5480 		udelay(50);
5481 		REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0);
5482 	}
5483 
5484 #ifdef BCM_CNIC
5485 	bnx2x_init_block(bp, SRCH_BLOCK, init_stage);
5486 #endif
5487 	bnx2x_init_block(bp, CDU_BLOCK, init_stage);
5488 	bnx2x_init_block(bp, CFC_BLOCK, init_stage);
5489 
5490 	if (CHIP_IS_E1(bp)) {
5491 		REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
5492 		REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
5493 	}
5494 	bnx2x_init_block(bp, HC_BLOCK, init_stage);
5495 
5496 	bnx2x_init_block(bp, IGU_BLOCK, init_stage);
5497 
5498 	bnx2x_init_block(bp, MISC_AEU_BLOCK, init_stage);
5499 	/* init aeu_mask_attn_func_0/1:
5500 	 *  - SF mode: bits 3-7 are masked. only bits 0-2 are in use
5501 	 *  - MF mode: bit 3 is masked. bits 0-2 are in use as in SF
5502 	 *             bits 4-7 are used for "per vn group attention" */
5503 	val = IS_MF(bp) ? 0xF7 : 0x7;
5504 	/* Enable DCBX attention for all but E1 */
5505 	val |= CHIP_IS_E1(bp) ? 0 : 0x10;
5506 	REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val);
5507 
5508 	bnx2x_init_block(bp, PXPCS_BLOCK, init_stage);
5509 	bnx2x_init_block(bp, EMAC0_BLOCK, init_stage);
5510 	bnx2x_init_block(bp, EMAC1_BLOCK, init_stage);
5511 	bnx2x_init_block(bp, DBU_BLOCK, init_stage);
5512 	bnx2x_init_block(bp, DBG_BLOCK, init_stage);
5513 
5514 	bnx2x_init_block(bp, NIG_BLOCK, init_stage);
5515 
5516 	REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
5517 
5518 	if (!CHIP_IS_E1(bp)) {
5519 		/* 0x2 disable mf_ov, 0x1 enable */
5520 		REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + port*4,
5521 		       (IS_MF_SD(bp) ? 0x1 : 0x2));
5522 
5523 		if (CHIP_IS_E2(bp)) {
5524 			val = 0;
5525 			switch (bp->mf_mode) {
5526 			case MULTI_FUNCTION_SD:
5527 				val = 1;
5528 				break;
5529 			case MULTI_FUNCTION_SI:
5530 				val = 2;
5531 				break;
5532 			}
5533 
5534 			REG_WR(bp, (BP_PORT(bp) ? NIG_REG_LLH1_CLS_TYPE :
5535 						  NIG_REG_LLH0_CLS_TYPE), val);
5536 		}
5537 		{
5538 			REG_WR(bp, NIG_REG_LLFC_ENABLE_0 + port*4, 0);
5539 			REG_WR(bp, NIG_REG_LLFC_OUT_EN_0 + port*4, 0);
5540 			REG_WR(bp, NIG_REG_PAUSE_ENABLE_0 + port*4, 1);
5541 		}
5542 	}
5543 
5544 	bnx2x_init_block(bp, MCP_BLOCK, init_stage);
5545 	bnx2x_init_block(bp, DMAE_BLOCK, init_stage);
5546 	if (bnx2x_fan_failure_det_req(bp, bp->common.shmem_base,
5547 				      bp->common.shmem2_base, port)) {
5548 		u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
5549 				       MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0);
5550 		val = REG_RD(bp, reg_addr);
5551 		val |= AEU_INPUTS_ATTN_BITS_SPIO5;
5552 		REG_WR(bp, reg_addr, val);
5553 	}
5554 	bnx2x__link_reset(bp);
5555 
5556 	return 0;
5557 }
5558 
bnx2x_ilt_wr(struct bnx2x * bp,u32 index,dma_addr_t addr)5559 static void bnx2x_ilt_wr(struct bnx2x *bp, u32 index, dma_addr_t addr)
5560 {
5561 	int reg;
5562 
5563 	if (CHIP_IS_E1(bp))
5564 		reg = PXP2_REG_RQ_ONCHIP_AT + index*8;
5565 	else
5566 		reg = PXP2_REG_RQ_ONCHIP_AT_B0 + index*8;
5567 
5568 	bnx2x_wb_wr(bp, reg, ONCHIP_ADDR1(addr), ONCHIP_ADDR2(addr));
5569 }
5570 
bnx2x_igu_clear_sb(struct bnx2x * bp,u8 idu_sb_id)5571 static inline void bnx2x_igu_clear_sb(struct bnx2x *bp, u8 idu_sb_id)
5572 {
5573 	bnx2x_igu_clear_sb_gen(bp, idu_sb_id, true /*PF*/);
5574 }
5575 
bnx2x_clear_func_ilt(struct bnx2x * bp,u32 func)5576 static inline void bnx2x_clear_func_ilt(struct bnx2x *bp, u32 func)
5577 {
5578 	u32 i, base = FUNC_ILT_BASE(func);
5579 	for (i = base; i < base + ILT_PER_FUNC; i++)
5580 		bnx2x_ilt_wr(bp, i, 0);
5581 }
5582 
bnx2x_init_hw_func(struct bnx2x * bp)5583 static int bnx2x_init_hw_func(struct bnx2x *bp)
5584 {
5585 	int port = BP_PORT(bp);
5586 	int func = BP_FUNC(bp);
5587 	struct bnx2x_ilt *ilt = BP_ILT(bp);
5588 	u16 cdu_ilt_start;
5589 	u32 addr, val;
5590 	u32 main_mem_base, main_mem_size, main_mem_prty_clr;
5591 	int i, main_mem_width;
5592 
5593 	DP(BNX2X_MSG_MCP, "starting func init  func %d\n", func);
5594 
5595 	/* set MSI reconfigure capability */
5596 	if (bp->common.int_block == INT_BLOCK_HC) {
5597 		addr = (port ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0);
5598 		val = REG_RD(bp, addr);
5599 		val |= HC_CONFIG_0_REG_MSI_ATTN_EN_0;
5600 		REG_WR(bp, addr, val);
5601 	}
5602 
5603 	ilt = BP_ILT(bp);
5604 	cdu_ilt_start = ilt->clients[ILT_CLIENT_CDU].start;
5605 
5606 	for (i = 0; i < L2_ILT_LINES(bp); i++) {
5607 		ilt->lines[cdu_ilt_start + i].page =
5608 			bp->context.vcxt + (ILT_PAGE_CIDS * i);
5609 		ilt->lines[cdu_ilt_start + i].page_mapping =
5610 			bp->context.cxt_mapping + (CDU_ILT_PAGE_SZ * i);
5611 		/* cdu ilt pages are allocated manually so there's no need to
5612 		set the size */
5613 	}
5614 	bnx2x_ilt_init_op(bp, INITOP_SET);
5615 
5616 #ifdef BCM_CNIC
5617 	bnx2x_src_init_t2(bp, bp->t2, bp->t2_mapping, SRC_CONN_NUM);
5618 
5619 	/* T1 hash bits value determines the T1 number of entries */
5620 	REG_WR(bp, SRC_REG_NUMBER_HASH_BITS0 + port*4, SRC_HASH_BITS);
5621 #endif
5622 
5623 #ifndef BCM_CNIC
5624 	/* set NIC mode */
5625 	REG_WR(bp, PRS_REG_NIC_MODE, 1);
5626 #endif  /* BCM_CNIC */
5627 
5628 	if (CHIP_IS_E2(bp)) {
5629 		u32 pf_conf = IGU_PF_CONF_FUNC_EN;
5630 
5631 		/* Turn on a single ISR mode in IGU if driver is going to use
5632 		 * INT#x or MSI
5633 		 */
5634 		if (!(bp->flags & USING_MSIX_FLAG))
5635 			pf_conf |= IGU_PF_CONF_SINGLE_ISR_EN;
5636 		/*
5637 		 * Timers workaround bug: function init part.
5638 		 * Need to wait 20msec after initializing ILT,
5639 		 * needed to make sure there are no requests in
5640 		 * one of the PXP internal queues with "old" ILT addresses
5641 		 */
5642 		msleep(20);
5643 		/*
5644 		 * Master enable - Due to WB DMAE writes performed before this
5645 		 * register is re-initialized as part of the regular function
5646 		 * init
5647 		 */
5648 		REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 1);
5649 		/* Enable the function in IGU */
5650 		REG_WR(bp, IGU_REG_PF_CONFIGURATION, pf_conf);
5651 	}
5652 
5653 	bp->dmae_ready = 1;
5654 
5655 	bnx2x_init_block(bp, PGLUE_B_BLOCK, FUNC0_STAGE + func);
5656 
5657 	if (CHIP_IS_E2(bp))
5658 		REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, func);
5659 
5660 	bnx2x_init_block(bp, MISC_BLOCK, FUNC0_STAGE + func);
5661 	bnx2x_init_block(bp, TCM_BLOCK, FUNC0_STAGE + func);
5662 	bnx2x_init_block(bp, UCM_BLOCK, FUNC0_STAGE + func);
5663 	bnx2x_init_block(bp, CCM_BLOCK, FUNC0_STAGE + func);
5664 	bnx2x_init_block(bp, XCM_BLOCK, FUNC0_STAGE + func);
5665 	bnx2x_init_block(bp, TSEM_BLOCK, FUNC0_STAGE + func);
5666 	bnx2x_init_block(bp, USEM_BLOCK, FUNC0_STAGE + func);
5667 	bnx2x_init_block(bp, CSEM_BLOCK, FUNC0_STAGE + func);
5668 	bnx2x_init_block(bp, XSEM_BLOCK, FUNC0_STAGE + func);
5669 
5670 	if (CHIP_IS_E2(bp)) {
5671 		REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_PATH_ID_OFFSET,
5672 								BP_PATH(bp));
5673 		REG_WR(bp, BAR_CSTRORM_INTMEM + CSTORM_PATH_ID_OFFSET,
5674 								BP_PATH(bp));
5675 	}
5676 
5677 	if (CHIP_MODE_IS_4_PORT(bp))
5678 		bnx2x_init_block(bp, XSEM_4PORT_BLOCK, FUNC0_STAGE + func);
5679 
5680 	if (CHIP_IS_E2(bp))
5681 		REG_WR(bp, QM_REG_PF_EN, 1);
5682 
5683 	bnx2x_init_block(bp, QM_BLOCK, FUNC0_STAGE + func);
5684 
5685 	if (CHIP_MODE_IS_4_PORT(bp))
5686 		bnx2x_init_block(bp, QM_4PORT_BLOCK, FUNC0_STAGE + func);
5687 
5688 	bnx2x_init_block(bp, TIMERS_BLOCK, FUNC0_STAGE + func);
5689 	bnx2x_init_block(bp, DQ_BLOCK, FUNC0_STAGE + func);
5690 	bnx2x_init_block(bp, BRB1_BLOCK, FUNC0_STAGE + func);
5691 	bnx2x_init_block(bp, PRS_BLOCK, FUNC0_STAGE + func);
5692 	bnx2x_init_block(bp, TSDM_BLOCK, FUNC0_STAGE + func);
5693 	bnx2x_init_block(bp, CSDM_BLOCK, FUNC0_STAGE + func);
5694 	bnx2x_init_block(bp, USDM_BLOCK, FUNC0_STAGE + func);
5695 	bnx2x_init_block(bp, XSDM_BLOCK, FUNC0_STAGE + func);
5696 	bnx2x_init_block(bp, UPB_BLOCK, FUNC0_STAGE + func);
5697 	bnx2x_init_block(bp, XPB_BLOCK, FUNC0_STAGE + func);
5698 	bnx2x_init_block(bp, PBF_BLOCK, FUNC0_STAGE + func);
5699 	if (CHIP_IS_E2(bp))
5700 		REG_WR(bp, PBF_REG_DISABLE_PF, 0);
5701 
5702 	bnx2x_init_block(bp, CDU_BLOCK, FUNC0_STAGE + func);
5703 
5704 	bnx2x_init_block(bp, CFC_BLOCK, FUNC0_STAGE + func);
5705 
5706 	if (CHIP_IS_E2(bp))
5707 		REG_WR(bp, CFC_REG_WEAK_ENABLE_PF, 1);
5708 
5709 	if (IS_MF(bp)) {
5710 		REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
5711 		REG_WR(bp, NIG_REG_LLH0_FUNC_VLAN_ID + port*8, bp->mf_ov);
5712 	}
5713 
5714 	bnx2x_init_block(bp, MISC_AEU_BLOCK, FUNC0_STAGE + func);
5715 
5716 	/* HC init per function */
5717 	if (bp->common.int_block == INT_BLOCK_HC) {
5718 		if (CHIP_IS_E1H(bp)) {
5719 			REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
5720 
5721 			REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
5722 			REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
5723 		}
5724 		bnx2x_init_block(bp, HC_BLOCK, FUNC0_STAGE + func);
5725 
5726 	} else {
5727 		int num_segs, sb_idx, prod_offset;
5728 
5729 		REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_12 + func*4, 0);
5730 
5731 		if (CHIP_IS_E2(bp)) {
5732 			REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
5733 			REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
5734 		}
5735 
5736 		bnx2x_init_block(bp, IGU_BLOCK, FUNC0_STAGE + func);
5737 
5738 		if (CHIP_IS_E2(bp)) {
5739 			int dsb_idx = 0;
5740 			/**
5741 			 * Producer memory:
5742 			 * E2 mode: address 0-135 match to the mapping memory;
5743 			 * 136 - PF0 default prod; 137 - PF1 default prod;
5744 			 * 138 - PF2 default prod; 139 - PF3 default prod;
5745 			 * 140 - PF0 attn prod;    141 - PF1 attn prod;
5746 			 * 142 - PF2 attn prod;    143 - PF3 attn prod;
5747 			 * 144-147 reserved.
5748 			 *
5749 			 * E1.5 mode - In backward compatible mode;
5750 			 * for non default SB; each even line in the memory
5751 			 * holds the U producer and each odd line hold
5752 			 * the C producer. The first 128 producers are for
5753 			 * NDSB (PF0 - 0-31; PF1 - 32-63 and so on). The last 20
5754 			 * producers are for the DSB for each PF.
5755 			 * Each PF has five segments: (the order inside each
5756 			 * segment is PF0; PF1; PF2; PF3) - 128-131 U prods;
5757 			 * 132-135 C prods; 136-139 X prods; 140-143 T prods;
5758 			 * 144-147 attn prods;
5759 			 */
5760 			/* non-default-status-blocks */
5761 			num_segs = CHIP_INT_MODE_IS_BC(bp) ?
5762 				IGU_BC_NDSB_NUM_SEGS : IGU_NORM_NDSB_NUM_SEGS;
5763 			for (sb_idx = 0; sb_idx < bp->igu_sb_cnt; sb_idx++) {
5764 				prod_offset = (bp->igu_base_sb + sb_idx) *
5765 					num_segs;
5766 
5767 				for (i = 0; i < num_segs; i++) {
5768 					addr = IGU_REG_PROD_CONS_MEMORY +
5769 							(prod_offset + i) * 4;
5770 					REG_WR(bp, addr, 0);
5771 				}
5772 				/* send consumer update with value 0 */
5773 				bnx2x_ack_sb(bp, bp->igu_base_sb + sb_idx,
5774 					     USTORM_ID, 0, IGU_INT_NOP, 1);
5775 				bnx2x_igu_clear_sb(bp,
5776 						   bp->igu_base_sb + sb_idx);
5777 			}
5778 
5779 			/* default-status-blocks */
5780 			num_segs = CHIP_INT_MODE_IS_BC(bp) ?
5781 				IGU_BC_DSB_NUM_SEGS : IGU_NORM_DSB_NUM_SEGS;
5782 
5783 			if (CHIP_MODE_IS_4_PORT(bp))
5784 				dsb_idx = BP_FUNC(bp);
5785 			else
5786 				dsb_idx = BP_E1HVN(bp);
5787 
5788 			prod_offset = (CHIP_INT_MODE_IS_BC(bp) ?
5789 				       IGU_BC_BASE_DSB_PROD + dsb_idx :
5790 				       IGU_NORM_BASE_DSB_PROD + dsb_idx);
5791 
5792 			for (i = 0; i < (num_segs * E1HVN_MAX);
5793 			     i += E1HVN_MAX) {
5794 				addr = IGU_REG_PROD_CONS_MEMORY +
5795 							(prod_offset + i)*4;
5796 				REG_WR(bp, addr, 0);
5797 			}
5798 			/* send consumer update with 0 */
5799 			if (CHIP_INT_MODE_IS_BC(bp)) {
5800 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5801 					     USTORM_ID, 0, IGU_INT_NOP, 1);
5802 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5803 					     CSTORM_ID, 0, IGU_INT_NOP, 1);
5804 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5805 					     XSTORM_ID, 0, IGU_INT_NOP, 1);
5806 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5807 					     TSTORM_ID, 0, IGU_INT_NOP, 1);
5808 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5809 					     ATTENTION_ID, 0, IGU_INT_NOP, 1);
5810 			} else {
5811 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5812 					     USTORM_ID, 0, IGU_INT_NOP, 1);
5813 				bnx2x_ack_sb(bp, bp->igu_dsb_id,
5814 					     ATTENTION_ID, 0, IGU_INT_NOP, 1);
5815 			}
5816 			bnx2x_igu_clear_sb(bp, bp->igu_dsb_id);
5817 
5818 			/* !!! these should become driver const once
5819 			   rf-tool supports split-68 const */
5820 			REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
5821 			REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
5822 			REG_WR(bp, IGU_REG_SB_MASK_LSB, 0);
5823 			REG_WR(bp, IGU_REG_SB_MASK_MSB, 0);
5824 			REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0);
5825 			REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0);
5826 		}
5827 	}
5828 
5829 	/* Reset PCIE errors for debug */
5830 	REG_WR(bp, 0x2114, 0xffffffff);
5831 	REG_WR(bp, 0x2120, 0xffffffff);
5832 
5833 	bnx2x_init_block(bp, EMAC0_BLOCK, FUNC0_STAGE + func);
5834 	bnx2x_init_block(bp, EMAC1_BLOCK, FUNC0_STAGE + func);
5835 	bnx2x_init_block(bp, DBU_BLOCK, FUNC0_STAGE + func);
5836 	bnx2x_init_block(bp, DBG_BLOCK, FUNC0_STAGE + func);
5837 	bnx2x_init_block(bp, MCP_BLOCK, FUNC0_STAGE + func);
5838 	bnx2x_init_block(bp, DMAE_BLOCK, FUNC0_STAGE + func);
5839 
5840 	if (CHIP_IS_E1x(bp)) {
5841 		main_mem_size = HC_REG_MAIN_MEMORY_SIZE / 2; /*dwords*/
5842 		main_mem_base = HC_REG_MAIN_MEMORY +
5843 				BP_PORT(bp) * (main_mem_size * 4);
5844 		main_mem_prty_clr = HC_REG_HC_PRTY_STS_CLR;
5845 		main_mem_width = 8;
5846 
5847 		val = REG_RD(bp, main_mem_prty_clr);
5848 		if (val)
5849 			DP(BNX2X_MSG_MCP, "Hmmm... Parity errors in HC "
5850 					  "block during "
5851 					  "function init (0x%x)!\n", val);
5852 
5853 		/* Clear "false" parity errors in MSI-X table */
5854 		for (i = main_mem_base;
5855 		     i < main_mem_base + main_mem_size * 4;
5856 		     i += main_mem_width) {
5857 			bnx2x_read_dmae(bp, i, main_mem_width / 4);
5858 			bnx2x_write_dmae(bp, bnx2x_sp_mapping(bp, wb_data),
5859 					 i, main_mem_width / 4);
5860 		}
5861 		/* Clear HC parity attention */
5862 		REG_RD(bp, main_mem_prty_clr);
5863 	}
5864 
5865 	bnx2x_phy_probe(&bp->link_params);
5866 
5867 	return 0;
5868 }
5869 
bnx2x_init_hw(struct bnx2x * bp,u32 load_code)5870 int bnx2x_init_hw(struct bnx2x *bp, u32 load_code)
5871 {
5872 	int rc = 0;
5873 
5874 	DP(BNX2X_MSG_MCP, "function %d  load_code %x\n",
5875 	   BP_ABS_FUNC(bp), load_code);
5876 
5877 	bp->dmae_ready = 0;
5878 	spin_lock_init(&bp->dmae_lock);
5879 	rc = bnx2x_gunzip_init(bp);
5880 	if (rc)
5881 		return rc;
5882 
5883 	switch (load_code) {
5884 	case FW_MSG_CODE_DRV_LOAD_COMMON:
5885 	case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
5886 		rc = bnx2x_init_hw_common(bp, load_code);
5887 		if (rc)
5888 			goto init_hw_err;
5889 		/* no break */
5890 
5891 	case FW_MSG_CODE_DRV_LOAD_PORT:
5892 		rc = bnx2x_init_hw_port(bp);
5893 		if (rc)
5894 			goto init_hw_err;
5895 		/* no break */
5896 
5897 	case FW_MSG_CODE_DRV_LOAD_FUNCTION:
5898 		rc = bnx2x_init_hw_func(bp);
5899 		if (rc)
5900 			goto init_hw_err;
5901 		break;
5902 
5903 	default:
5904 		BNX2X_ERR("Unknown load_code (0x%x) from MCP\n", load_code);
5905 		break;
5906 	}
5907 
5908 	if (!BP_NOMCP(bp)) {
5909 		int mb_idx = BP_FW_MB_IDX(bp);
5910 
5911 		bp->fw_drv_pulse_wr_seq =
5912 				(SHMEM_RD(bp, func_mb[mb_idx].drv_pulse_mb) &
5913 				 DRV_PULSE_SEQ_MASK);
5914 		DP(BNX2X_MSG_MCP, "drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq);
5915 	}
5916 
5917 init_hw_err:
5918 	bnx2x_gunzip_end(bp);
5919 
5920 	return rc;
5921 }
5922 
bnx2x_free_mem(struct bnx2x * bp)5923 void bnx2x_free_mem(struct bnx2x *bp)
5924 {
5925 
5926 #define BNX2X_PCI_FREE(x, y, size) \
5927 	do { \
5928 		if (x) { \
5929 			dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \
5930 			x = NULL; \
5931 			y = 0; \
5932 		} \
5933 	} while (0)
5934 
5935 #define BNX2X_FREE(x) \
5936 	do { \
5937 		if (x) { \
5938 			kfree((void *)x); \
5939 			x = NULL; \
5940 		} \
5941 	} while (0)
5942 
5943 	int i;
5944 
5945 	/* fastpath */
5946 	/* Common */
5947 	for_each_queue(bp, i) {
5948 #ifdef BCM_CNIC
5949 		/* FCoE client uses default status block */
5950 		if (IS_FCOE_IDX(i)) {
5951 			union host_hc_status_block *sb =
5952 				&bnx2x_fp(bp, i, status_blk);
5953 			memset(sb, 0, sizeof(union host_hc_status_block));
5954 			bnx2x_fp(bp, i, status_blk_mapping) = 0;
5955 		} else {
5956 #endif
5957 		/* status blocks */
5958 		if (CHIP_IS_E2(bp))
5959 			BNX2X_PCI_FREE(bnx2x_fp(bp, i, status_blk.e2_sb),
5960 				       bnx2x_fp(bp, i, status_blk_mapping),
5961 				       sizeof(struct host_hc_status_block_e2));
5962 		else
5963 			BNX2X_PCI_FREE(bnx2x_fp(bp, i, status_blk.e1x_sb),
5964 				       bnx2x_fp(bp, i, status_blk_mapping),
5965 				       sizeof(struct host_hc_status_block_e1x));
5966 #ifdef BCM_CNIC
5967 		}
5968 #endif
5969 	}
5970 	/* Rx */
5971 	for_each_rx_queue(bp, i) {
5972 
5973 		/* fastpath rx rings: rx_buf rx_desc rx_comp */
5974 		BNX2X_FREE(bnx2x_fp(bp, i, rx_buf_ring));
5975 		BNX2X_PCI_FREE(bnx2x_fp(bp, i, rx_desc_ring),
5976 			       bnx2x_fp(bp, i, rx_desc_mapping),
5977 			       sizeof(struct eth_rx_bd) * NUM_RX_BD);
5978 
5979 		BNX2X_PCI_FREE(bnx2x_fp(bp, i, rx_comp_ring),
5980 			       bnx2x_fp(bp, i, rx_comp_mapping),
5981 			       sizeof(struct eth_fast_path_rx_cqe) *
5982 			       NUM_RCQ_BD);
5983 
5984 		/* SGE ring */
5985 		BNX2X_FREE(bnx2x_fp(bp, i, rx_page_ring));
5986 		BNX2X_PCI_FREE(bnx2x_fp(bp, i, rx_sge_ring),
5987 			       bnx2x_fp(bp, i, rx_sge_mapping),
5988 			       BCM_PAGE_SIZE * NUM_RX_SGE_PAGES);
5989 	}
5990 	/* Tx */
5991 	for_each_tx_queue(bp, i) {
5992 
5993 		/* fastpath tx rings: tx_buf tx_desc */
5994 		BNX2X_FREE(bnx2x_fp(bp, i, tx_buf_ring));
5995 		BNX2X_PCI_FREE(bnx2x_fp(bp, i, tx_desc_ring),
5996 			       bnx2x_fp(bp, i, tx_desc_mapping),
5997 			       sizeof(union eth_tx_bd_types) * NUM_TX_BD);
5998 	}
5999 	/* end of fastpath */
6000 
6001 	BNX2X_PCI_FREE(bp->def_status_blk, bp->def_status_blk_mapping,
6002 		       sizeof(struct host_sp_status_block));
6003 
6004 	BNX2X_PCI_FREE(bp->slowpath, bp->slowpath_mapping,
6005 		       sizeof(struct bnx2x_slowpath));
6006 
6007 	BNX2X_PCI_FREE(bp->context.vcxt, bp->context.cxt_mapping,
6008 		       bp->context.size);
6009 
6010 	bnx2x_ilt_mem_op(bp, ILT_MEMOP_FREE);
6011 
6012 	BNX2X_FREE(bp->ilt->lines);
6013 
6014 #ifdef BCM_CNIC
6015 	if (CHIP_IS_E2(bp))
6016 		BNX2X_PCI_FREE(bp->cnic_sb.e2_sb, bp->cnic_sb_mapping,
6017 			       sizeof(struct host_hc_status_block_e2));
6018 	else
6019 		BNX2X_PCI_FREE(bp->cnic_sb.e1x_sb, bp->cnic_sb_mapping,
6020 			       sizeof(struct host_hc_status_block_e1x));
6021 
6022 	BNX2X_PCI_FREE(bp->t2, bp->t2_mapping, SRC_T2_SZ);
6023 #endif
6024 
6025 	BNX2X_PCI_FREE(bp->spq, bp->spq_mapping, BCM_PAGE_SIZE);
6026 
6027 	BNX2X_PCI_FREE(bp->eq_ring, bp->eq_mapping,
6028 		       BCM_PAGE_SIZE * NUM_EQ_PAGES);
6029 
6030 	BNX2X_FREE(bp->rx_indir_table);
6031 
6032 #undef BNX2X_PCI_FREE
6033 #undef BNX2X_KFREE
6034 }
6035 
set_sb_shortcuts(struct bnx2x * bp,int index)6036 static inline void set_sb_shortcuts(struct bnx2x *bp, int index)
6037 {
6038 	union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk);
6039 	if (CHIP_IS_E2(bp)) {
6040 		bnx2x_fp(bp, index, sb_index_values) =
6041 			(__le16 *)status_blk.e2_sb->sb.index_values;
6042 		bnx2x_fp(bp, index, sb_running_index) =
6043 			(__le16 *)status_blk.e2_sb->sb.running_index;
6044 	} else {
6045 		bnx2x_fp(bp, index, sb_index_values) =
6046 			(__le16 *)status_blk.e1x_sb->sb.index_values;
6047 		bnx2x_fp(bp, index, sb_running_index) =
6048 			(__le16 *)status_blk.e1x_sb->sb.running_index;
6049 	}
6050 }
6051 
bnx2x_alloc_mem(struct bnx2x * bp)6052 int bnx2x_alloc_mem(struct bnx2x *bp)
6053 {
6054 #define BNX2X_PCI_ALLOC(x, y, size) \
6055 	do { \
6056 		x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
6057 		if (x == NULL) \
6058 			goto alloc_mem_err; \
6059 		memset(x, 0, size); \
6060 	} while (0)
6061 
6062 #define BNX2X_ALLOC(x, size) \
6063 	do { \
6064 		x = kzalloc(size, GFP_KERNEL); \
6065 		if (x == NULL) \
6066 			goto alloc_mem_err; \
6067 	} while (0)
6068 
6069 	int i;
6070 
6071 	/* fastpath */
6072 	/* Common */
6073 	for_each_queue(bp, i) {
6074 		union host_hc_status_block *sb = &bnx2x_fp(bp, i, status_blk);
6075 		bnx2x_fp(bp, i, bp) = bp;
6076 		/* status blocks */
6077 #ifdef BCM_CNIC
6078 		if (!IS_FCOE_IDX(i)) {
6079 #endif
6080 			if (CHIP_IS_E2(bp))
6081 				BNX2X_PCI_ALLOC(sb->e2_sb,
6082 				    &bnx2x_fp(bp, i, status_blk_mapping),
6083 				    sizeof(struct host_hc_status_block_e2));
6084 			else
6085 				BNX2X_PCI_ALLOC(sb->e1x_sb,
6086 				    &bnx2x_fp(bp, i, status_blk_mapping),
6087 				    sizeof(struct host_hc_status_block_e1x));
6088 #ifdef BCM_CNIC
6089 		}
6090 #endif
6091 		set_sb_shortcuts(bp, i);
6092 	}
6093 	/* Rx */
6094 	for_each_queue(bp, i) {
6095 
6096 		/* fastpath rx rings: rx_buf rx_desc rx_comp */
6097 		BNX2X_ALLOC(bnx2x_fp(bp, i, rx_buf_ring),
6098 				sizeof(struct sw_rx_bd) * NUM_RX_BD);
6099 		BNX2X_PCI_ALLOC(bnx2x_fp(bp, i, rx_desc_ring),
6100 				&bnx2x_fp(bp, i, rx_desc_mapping),
6101 				sizeof(struct eth_rx_bd) * NUM_RX_BD);
6102 
6103 		BNX2X_PCI_ALLOC(bnx2x_fp(bp, i, rx_comp_ring),
6104 				&bnx2x_fp(bp, i, rx_comp_mapping),
6105 				sizeof(struct eth_fast_path_rx_cqe) *
6106 				NUM_RCQ_BD);
6107 
6108 		/* SGE ring */
6109 		BNX2X_ALLOC(bnx2x_fp(bp, i, rx_page_ring),
6110 				sizeof(struct sw_rx_page) * NUM_RX_SGE);
6111 		BNX2X_PCI_ALLOC(bnx2x_fp(bp, i, rx_sge_ring),
6112 				&bnx2x_fp(bp, i, rx_sge_mapping),
6113 				BCM_PAGE_SIZE * NUM_RX_SGE_PAGES);
6114 	}
6115 	/* Tx */
6116 	for_each_queue(bp, i) {
6117 
6118 		/* fastpath tx rings: tx_buf tx_desc */
6119 		BNX2X_ALLOC(bnx2x_fp(bp, i, tx_buf_ring),
6120 				sizeof(struct sw_tx_bd) * NUM_TX_BD);
6121 		BNX2X_PCI_ALLOC(bnx2x_fp(bp, i, tx_desc_ring),
6122 				&bnx2x_fp(bp, i, tx_desc_mapping),
6123 				sizeof(union eth_tx_bd_types) * NUM_TX_BD);
6124 	}
6125 	/* end of fastpath */
6126 
6127 #ifdef BCM_CNIC
6128 	if (CHIP_IS_E2(bp))
6129 		BNX2X_PCI_ALLOC(bp->cnic_sb.e2_sb, &bp->cnic_sb_mapping,
6130 				sizeof(struct host_hc_status_block_e2));
6131 	else
6132 		BNX2X_PCI_ALLOC(bp->cnic_sb.e1x_sb, &bp->cnic_sb_mapping,
6133 				sizeof(struct host_hc_status_block_e1x));
6134 
6135 	/* allocate searcher T2 table */
6136 	BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);
6137 #endif
6138 
6139 
6140 	BNX2X_PCI_ALLOC(bp->def_status_blk, &bp->def_status_blk_mapping,
6141 			sizeof(struct host_sp_status_block));
6142 
6143 	BNX2X_PCI_ALLOC(bp->slowpath, &bp->slowpath_mapping,
6144 			sizeof(struct bnx2x_slowpath));
6145 
6146 	bp->context.size = sizeof(union cdu_context) * bp->l2_cid_count;
6147 
6148 	BNX2X_PCI_ALLOC(bp->context.vcxt, &bp->context.cxt_mapping,
6149 			bp->context.size);
6150 
6151 	BNX2X_ALLOC(bp->ilt->lines, sizeof(struct ilt_line) * ILT_MAX_LINES);
6152 
6153 	if (bnx2x_ilt_mem_op(bp, ILT_MEMOP_ALLOC))
6154 		goto alloc_mem_err;
6155 
6156 	/* Slow path ring */
6157 	BNX2X_PCI_ALLOC(bp->spq, &bp->spq_mapping, BCM_PAGE_SIZE);
6158 
6159 	/* EQ */
6160 	BNX2X_PCI_ALLOC(bp->eq_ring, &bp->eq_mapping,
6161 			BCM_PAGE_SIZE * NUM_EQ_PAGES);
6162 
6163 	BNX2X_ALLOC(bp->rx_indir_table, sizeof(bp->rx_indir_table[0]) *
6164 		    TSTORM_INDIRECTION_TABLE_SIZE);
6165 	return 0;
6166 
6167 alloc_mem_err:
6168 	bnx2x_free_mem(bp);
6169 	return -ENOMEM;
6170 
6171 #undef BNX2X_PCI_ALLOC
6172 #undef BNX2X_ALLOC
6173 }
6174 
6175 /*
6176  * Init service functions
6177  */
6178 static int bnx2x_wait_ramrod(struct bnx2x *bp, int state, int idx,
6179 			     int *state_p, int flags);
6180 
bnx2x_func_start(struct bnx2x * bp)6181 int bnx2x_func_start(struct bnx2x *bp)
6182 {
6183 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_FUNCTION_START, 0, 0, 0, 1);
6184 
6185 	/* Wait for completion */
6186 	return bnx2x_wait_ramrod(bp, BNX2X_STATE_FUNC_STARTED, 0, &(bp->state),
6187 				 WAIT_RAMROD_COMMON);
6188 }
6189 
bnx2x_func_stop(struct bnx2x * bp)6190 static int bnx2x_func_stop(struct bnx2x *bp)
6191 {
6192 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_FUNCTION_STOP, 0, 0, 0, 1);
6193 
6194 	/* Wait for completion */
6195 	return bnx2x_wait_ramrod(bp, BNX2X_STATE_CLOSING_WAIT4_UNLOAD,
6196 				      0, &(bp->state), WAIT_RAMROD_COMMON);
6197 }
6198 
6199 /**
6200  * Sets a MAC in a CAM for a few L2 Clients for E1x chips
6201  *
6202  * @param bp driver descriptor
6203  * @param set set or clear an entry (1 or 0)
6204  * @param mac pointer to a buffer containing a MAC
6205  * @param cl_bit_vec bit vector of clients to register a MAC for
6206  * @param cam_offset offset in a CAM to use
6207  * @param is_bcast is the set MAC a broadcast address (for E1 only)
6208  */
bnx2x_set_mac_addr_gen(struct bnx2x * bp,int set,const u8 * mac,u32 cl_bit_vec,u8 cam_offset,u8 is_bcast)6209 static void bnx2x_set_mac_addr_gen(struct bnx2x *bp, int set, const u8 *mac,
6210 				   u32 cl_bit_vec, u8 cam_offset,
6211 				   u8 is_bcast)
6212 {
6213 	struct mac_configuration_cmd *config =
6214 		(struct mac_configuration_cmd *)bnx2x_sp(bp, mac_config);
6215 	int ramrod_flags = WAIT_RAMROD_COMMON;
6216 
6217 	bp->set_mac_pending = 1;
6218 
6219 	config->hdr.length = 1;
6220 	config->hdr.offset = cam_offset;
6221 	config->hdr.client_id = 0xff;
6222 	/* Mark the single MAC configuration ramrod as opposed to a
6223 	 * UC/MC list configuration).
6224 	 */
6225 	config->hdr.echo = 1;
6226 
6227 	/* primary MAC */
6228 	config->config_table[0].msb_mac_addr =
6229 					swab16(*(u16 *)&mac[0]);
6230 	config->config_table[0].middle_mac_addr =
6231 					swab16(*(u16 *)&mac[2]);
6232 	config->config_table[0].lsb_mac_addr =
6233 					swab16(*(u16 *)&mac[4]);
6234 	config->config_table[0].clients_bit_vector =
6235 					cpu_to_le32(cl_bit_vec);
6236 	config->config_table[0].vlan_id = 0;
6237 	config->config_table[0].pf_id = BP_FUNC(bp);
6238 	if (set)
6239 		SET_FLAG(config->config_table[0].flags,
6240 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
6241 			T_ETH_MAC_COMMAND_SET);
6242 	else
6243 		SET_FLAG(config->config_table[0].flags,
6244 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
6245 			T_ETH_MAC_COMMAND_INVALIDATE);
6246 
6247 	if (is_bcast)
6248 		SET_FLAG(config->config_table[0].flags,
6249 			MAC_CONFIGURATION_ENTRY_BROADCAST, 1);
6250 
6251 	DP(NETIF_MSG_IFUP, "%s MAC (%04x:%04x:%04x)  PF_ID %d  CLID mask %d\n",
6252 	   (set ? "setting" : "clearing"),
6253 	   config->config_table[0].msb_mac_addr,
6254 	   config->config_table[0].middle_mac_addr,
6255 	   config->config_table[0].lsb_mac_addr, BP_FUNC(bp), cl_bit_vec);
6256 
6257 	mb();
6258 
6259 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_SET_MAC, 0,
6260 		      U64_HI(bnx2x_sp_mapping(bp, mac_config)),
6261 		      U64_LO(bnx2x_sp_mapping(bp, mac_config)), 1);
6262 
6263 	/* Wait for a completion */
6264 	bnx2x_wait_ramrod(bp, 0, 0, &bp->set_mac_pending, ramrod_flags);
6265 }
6266 
bnx2x_wait_ramrod(struct bnx2x * bp,int state,int idx,int * state_p,int flags)6267 static int bnx2x_wait_ramrod(struct bnx2x *bp, int state, int idx,
6268 			     int *state_p, int flags)
6269 {
6270 	/* can take a while if any port is running */
6271 	int cnt = 5000;
6272 	u8 poll = flags & WAIT_RAMROD_POLL;
6273 	u8 common = flags & WAIT_RAMROD_COMMON;
6274 
6275 	DP(NETIF_MSG_IFUP, "%s for state to become %x on IDX [%d]\n",
6276 	   poll ? "polling" : "waiting", state, idx);
6277 
6278 	might_sleep();
6279 	while (cnt--) {
6280 		if (poll) {
6281 			if (common)
6282 				bnx2x_eq_int(bp);
6283 			else {
6284 				bnx2x_rx_int(bp->fp, 10);
6285 				/* if index is different from 0
6286 				 * the reply for some commands will
6287 				 * be on the non default queue
6288 				 */
6289 				if (idx)
6290 					bnx2x_rx_int(&bp->fp[idx], 10);
6291 			}
6292 		}
6293 
6294 		mb(); /* state is changed by bnx2x_sp_event() */
6295 		if (*state_p == state) {
6296 #ifdef BNX2X_STOP_ON_ERROR
6297 			DP(NETIF_MSG_IFUP, "exit  (cnt %d)\n", 5000 - cnt);
6298 #endif
6299 			return 0;
6300 		}
6301 
6302 		msleep(1);
6303 
6304 		if (bp->panic)
6305 			return -EIO;
6306 	}
6307 
6308 	/* timeout! */
6309 	BNX2X_ERR("timeout %s for state %x on IDX [%d]\n",
6310 		  poll ? "polling" : "waiting", state, idx);
6311 #ifdef BNX2X_STOP_ON_ERROR
6312 	bnx2x_panic();
6313 #endif
6314 
6315 	return -EBUSY;
6316 }
6317 
bnx2x_e1h_cam_offset(struct bnx2x * bp,u8 rel_offset)6318 static u8 bnx2x_e1h_cam_offset(struct bnx2x *bp, u8 rel_offset)
6319 {
6320 	if (CHIP_IS_E1H(bp))
6321 		return E1H_FUNC_MAX * rel_offset + BP_FUNC(bp);
6322 	else if (CHIP_MODE_IS_4_PORT(bp))
6323 		return E2_FUNC_MAX * rel_offset + BP_FUNC(bp);
6324 	else
6325 		return E2_FUNC_MAX * rel_offset + BP_VN(bp);
6326 }
6327 
6328 /**
6329  *  LLH CAM line allocations: currently only iSCSI and ETH macs are
6330  *  relevant. In addition, current implementation is tuned for a
6331  *  single ETH MAC.
6332  */
6333 enum {
6334 	LLH_CAM_ISCSI_ETH_LINE = 0,
6335 	LLH_CAM_ETH_LINE,
6336 	LLH_CAM_MAX_PF_LINE = NIG_REG_LLH1_FUNC_MEM_SIZE
6337 };
6338 
bnx2x_set_mac_in_nig(struct bnx2x * bp,int set,unsigned char * dev_addr,int index)6339 static void bnx2x_set_mac_in_nig(struct bnx2x *bp,
6340 			  int set,
6341 			  unsigned char *dev_addr,
6342 			  int index)
6343 {
6344 	u32 wb_data[2];
6345 	u32 mem_offset, ena_offset, mem_index;
6346 	/**
6347 	 * indexes mapping:
6348 	 * 0..7 - goes to MEM
6349 	 * 8..15 - goes to MEM2
6350 	 */
6351 
6352 	if (!IS_MF_SI(bp) || index > LLH_CAM_MAX_PF_LINE)
6353 		return;
6354 
6355 	/* calculate memory start offset according to the mapping
6356 	 * and index in the memory */
6357 	if (index < NIG_LLH_FUNC_MEM_MAX_OFFSET) {
6358 		mem_offset = BP_PORT(bp) ? NIG_REG_LLH1_FUNC_MEM :
6359 					   NIG_REG_LLH0_FUNC_MEM;
6360 		ena_offset = BP_PORT(bp) ? NIG_REG_LLH1_FUNC_MEM_ENABLE :
6361 					   NIG_REG_LLH0_FUNC_MEM_ENABLE;
6362 		mem_index = index;
6363 	} else {
6364 		mem_offset = BP_PORT(bp) ? NIG_REG_P1_LLH_FUNC_MEM2 :
6365 					   NIG_REG_P0_LLH_FUNC_MEM2;
6366 		ena_offset = BP_PORT(bp) ? NIG_REG_P1_LLH_FUNC_MEM2_ENABLE :
6367 					   NIG_REG_P0_LLH_FUNC_MEM2_ENABLE;
6368 		mem_index = index - NIG_LLH_FUNC_MEM_MAX_OFFSET;
6369 	}
6370 
6371 	if (set) {
6372 		/* LLH_FUNC_MEM is a u64 WB register */
6373 		mem_offset += 8*mem_index;
6374 
6375 		wb_data[0] = ((dev_addr[2] << 24) | (dev_addr[3] << 16) |
6376 			      (dev_addr[4] <<  8) |  dev_addr[5]);
6377 		wb_data[1] = ((dev_addr[0] <<  8) |  dev_addr[1]);
6378 
6379 		REG_WR_DMAE(bp, mem_offset, wb_data, 2);
6380 	}
6381 
6382 	/* enable/disable the entry */
6383 	REG_WR(bp, ena_offset + 4*mem_index, set);
6384 
6385 }
6386 
bnx2x_set_eth_mac(struct bnx2x * bp,int set)6387 void bnx2x_set_eth_mac(struct bnx2x *bp, int set)
6388 {
6389 	u8 cam_offset = (CHIP_IS_E1(bp) ? (BP_PORT(bp) ? 32 : 0) :
6390 			 bnx2x_e1h_cam_offset(bp, CAM_ETH_LINE));
6391 
6392 	/* networking  MAC */
6393 	bnx2x_set_mac_addr_gen(bp, set, bp->dev->dev_addr,
6394 			       (1 << bp->fp->cl_id), cam_offset , 0);
6395 
6396 	bnx2x_set_mac_in_nig(bp, set, bp->dev->dev_addr, LLH_CAM_ETH_LINE);
6397 
6398 	if (CHIP_IS_E1(bp)) {
6399 		/* broadcast MAC */
6400 		static const u8 bcast[ETH_ALEN] = {
6401 			0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6402 		};
6403 		bnx2x_set_mac_addr_gen(bp, set, bcast, 0, cam_offset + 1, 1);
6404 	}
6405 }
6406 
bnx2x_e1_cam_mc_offset(struct bnx2x * bp)6407 static inline u8 bnx2x_e1_cam_mc_offset(struct bnx2x *bp)
6408 {
6409 	return CHIP_REV_IS_SLOW(bp) ?
6410 		(BNX2X_MAX_EMUL_MULTI * (1 + BP_PORT(bp))) :
6411 		(BNX2X_MAX_MULTICAST * (1 + BP_PORT(bp)));
6412 }
6413 
6414 /* set mc list, do not wait as wait implies sleep and
6415  * set_rx_mode can be invoked from non-sleepable context.
6416  *
6417  * Instead we use the same ramrod data buffer each time we need
6418  * to configure a list of addresses, and use the fact that the
6419  * list of MACs is changed in an incremental way and that the
6420  * function is called under the netif_addr_lock. A temporary
6421  * inconsistent CAM configuration (possible in case of a very fast
6422  * sequence of add/del/add on the host side) will shortly be
6423  * restored by the handler of the last ramrod.
6424  */
bnx2x_set_e1_mc_list(struct bnx2x * bp)6425 static int bnx2x_set_e1_mc_list(struct bnx2x *bp)
6426 {
6427 	int i = 0, old;
6428 	struct net_device *dev = bp->dev;
6429 	u8 offset = bnx2x_e1_cam_mc_offset(bp);
6430 	struct netdev_hw_addr *ha;
6431 	struct mac_configuration_cmd *config_cmd = bnx2x_sp(bp, mcast_config);
6432 	dma_addr_t config_cmd_map = bnx2x_sp_mapping(bp, mcast_config);
6433 
6434 	if (netdev_mc_count(dev) > BNX2X_MAX_MULTICAST)
6435 		return -EINVAL;
6436 
6437 	netdev_for_each_mc_addr(ha, dev) {
6438 		/* copy mac */
6439 		config_cmd->config_table[i].msb_mac_addr =
6440 			swab16(*(u16 *)&bnx2x_mc_addr(ha)[0]);
6441 		config_cmd->config_table[i].middle_mac_addr =
6442 			swab16(*(u16 *)&bnx2x_mc_addr(ha)[2]);
6443 		config_cmd->config_table[i].lsb_mac_addr =
6444 			swab16(*(u16 *)&bnx2x_mc_addr(ha)[4]);
6445 
6446 		config_cmd->config_table[i].vlan_id = 0;
6447 		config_cmd->config_table[i].pf_id = BP_FUNC(bp);
6448 		config_cmd->config_table[i].clients_bit_vector =
6449 			cpu_to_le32(1 << BP_L_ID(bp));
6450 
6451 		SET_FLAG(config_cmd->config_table[i].flags,
6452 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
6453 			T_ETH_MAC_COMMAND_SET);
6454 
6455 		DP(NETIF_MSG_IFUP,
6456 		   "setting MCAST[%d] (%04x:%04x:%04x)\n", i,
6457 		   config_cmd->config_table[i].msb_mac_addr,
6458 		   config_cmd->config_table[i].middle_mac_addr,
6459 		   config_cmd->config_table[i].lsb_mac_addr);
6460 		i++;
6461 	}
6462 	old = config_cmd->hdr.length;
6463 	if (old > i) {
6464 		for (; i < old; i++) {
6465 			if (CAM_IS_INVALID(config_cmd->
6466 					   config_table[i])) {
6467 				/* already invalidated */
6468 				break;
6469 			}
6470 			/* invalidate */
6471 			SET_FLAG(config_cmd->config_table[i].flags,
6472 				MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
6473 				T_ETH_MAC_COMMAND_INVALIDATE);
6474 		}
6475 	}
6476 
6477 	wmb();
6478 
6479 	config_cmd->hdr.length = i;
6480 	config_cmd->hdr.offset = offset;
6481 	config_cmd->hdr.client_id = 0xff;
6482 	/* Mark that this ramrod doesn't use bp->set_mac_pending for
6483 	 * synchronization.
6484 	 */
6485 	config_cmd->hdr.echo = 0;
6486 
6487 	mb();
6488 
6489 	return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_SET_MAC, 0,
6490 		   U64_HI(config_cmd_map), U64_LO(config_cmd_map), 1);
6491 }
6492 
bnx2x_invalidate_e1_mc_list(struct bnx2x * bp)6493 void bnx2x_invalidate_e1_mc_list(struct bnx2x *bp)
6494 {
6495 	int i;
6496 	struct mac_configuration_cmd *config_cmd = bnx2x_sp(bp, mcast_config);
6497 	dma_addr_t config_cmd_map = bnx2x_sp_mapping(bp, mcast_config);
6498 	int ramrod_flags = WAIT_RAMROD_COMMON;
6499 	u8 offset = bnx2x_e1_cam_mc_offset(bp);
6500 
6501 	for (i = 0; i < BNX2X_MAX_MULTICAST; i++)
6502 		SET_FLAG(config_cmd->config_table[i].flags,
6503 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
6504 			T_ETH_MAC_COMMAND_INVALIDATE);
6505 
6506 	wmb();
6507 
6508 	config_cmd->hdr.length = BNX2X_MAX_MULTICAST;
6509 	config_cmd->hdr.offset = offset;
6510 	config_cmd->hdr.client_id = 0xff;
6511 	/* We'll wait for a completion this time... */
6512 	config_cmd->hdr.echo = 1;
6513 
6514 	bp->set_mac_pending = 1;
6515 
6516 	mb();
6517 
6518 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_SET_MAC, 0,
6519 		      U64_HI(config_cmd_map), U64_LO(config_cmd_map), 1);
6520 
6521 	/* Wait for a completion */
6522 	bnx2x_wait_ramrod(bp, 0, 0, &bp->set_mac_pending,
6523 				ramrod_flags);
6524 
6525 }
6526 
6527 /* Accept one or more multicasts */
bnx2x_set_e1h_mc_list(struct bnx2x * bp)6528 static int bnx2x_set_e1h_mc_list(struct bnx2x *bp)
6529 {
6530 	struct net_device *dev = bp->dev;
6531 	struct netdev_hw_addr *ha;
6532 	u32 mc_filter[MC_HASH_SIZE];
6533 	u32 crc, bit, regidx;
6534 	int i;
6535 
6536 	memset(mc_filter, 0, 4 * MC_HASH_SIZE);
6537 
6538 	netdev_for_each_mc_addr(ha, dev) {
6539 		DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n",
6540 		   bnx2x_mc_addr(ha));
6541 
6542 		crc = crc32c_le(0, bnx2x_mc_addr(ha),
6543 				ETH_ALEN);
6544 		bit = (crc >> 24) & 0xff;
6545 		regidx = bit >> 5;
6546 		bit &= 0x1f;
6547 		mc_filter[regidx] |= (1 << bit);
6548 	}
6549 
6550 	for (i = 0; i < MC_HASH_SIZE; i++)
6551 		REG_WR(bp, MC_HASH_OFFSET(bp, i),
6552 		       mc_filter[i]);
6553 
6554 	return 0;
6555 }
6556 
bnx2x_invalidate_e1h_mc_list(struct bnx2x * bp)6557 void bnx2x_invalidate_e1h_mc_list(struct bnx2x *bp)
6558 {
6559 	int i;
6560 
6561 	for (i = 0; i < MC_HASH_SIZE; i++)
6562 		REG_WR(bp, MC_HASH_OFFSET(bp, i), 0);
6563 }
6564 
6565 #ifdef BCM_CNIC
6566 /**
6567  * Set iSCSI MAC(s) at the next enties in the CAM after the ETH
6568  * MAC(s). This function will wait until the ramdord completion
6569  * returns.
6570  *
6571  * @param bp driver handle
6572  * @param set set or clear the CAM entry
6573  *
6574  * @return 0 if cussess, -ENODEV if ramrod doesn't return.
6575  */
bnx2x_set_iscsi_eth_mac_addr(struct bnx2x * bp,int set)6576 static int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp, int set)
6577 {
6578 	u8 cam_offset = (CHIP_IS_E1(bp) ? ((BP_PORT(bp) ? 32 : 0) + 2) :
6579 			 bnx2x_e1h_cam_offset(bp, CAM_ISCSI_ETH_LINE));
6580 	u32 iscsi_l2_cl_id = BNX2X_ISCSI_ETH_CL_ID +
6581 		BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE;
6582 	u32 cl_bit_vec = (1 << iscsi_l2_cl_id);
6583 	u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
6584 
6585 	/* Send a SET_MAC ramrod */
6586 	bnx2x_set_mac_addr_gen(bp, set, iscsi_mac, cl_bit_vec,
6587 			       cam_offset, 0);
6588 
6589 	bnx2x_set_mac_in_nig(bp, set, iscsi_mac, LLH_CAM_ISCSI_ETH_LINE);
6590 
6591 	return 0;
6592 }
6593 
6594 /**
6595  * Set FCoE L2 MAC(s) at the next enties in the CAM after the
6596  * ETH MAC(s). This function will wait until the ramdord
6597  * completion returns.
6598  *
6599  * @param bp driver handle
6600  * @param set set or clear the CAM entry
6601  *
6602  * @return 0 if cussess, -ENODEV if ramrod doesn't return.
6603  */
bnx2x_set_fip_eth_mac_addr(struct bnx2x * bp,int set)6604 int bnx2x_set_fip_eth_mac_addr(struct bnx2x *bp, int set)
6605 {
6606 	u32 cl_bit_vec = (1 << bnx2x_fcoe(bp, cl_id));
6607 	/**
6608 	 * CAM allocation for E1H
6609 	 * eth unicasts: by func number
6610 	 * iscsi: by func number
6611 	 * fip unicast: by func number
6612 	 * fip multicast: by func number
6613 	 */
6614 	bnx2x_set_mac_addr_gen(bp, set, bp->fip_mac,
6615 		cl_bit_vec, bnx2x_e1h_cam_offset(bp, CAM_FIP_ETH_LINE), 0);
6616 
6617 	return 0;
6618 }
6619 
bnx2x_set_all_enode_macs(struct bnx2x * bp,int set)6620 int bnx2x_set_all_enode_macs(struct bnx2x *bp, int set)
6621 {
6622 	u32 cl_bit_vec = (1 << bnx2x_fcoe(bp, cl_id));
6623 
6624 	/**
6625 	 * CAM allocation for E1H
6626 	 * eth unicasts: by func number
6627 	 * iscsi: by func number
6628 	 * fip unicast: by func number
6629 	 * fip multicast: by func number
6630 	 */
6631 	bnx2x_set_mac_addr_gen(bp, set, ALL_ENODE_MACS,	cl_bit_vec,
6632 		bnx2x_e1h_cam_offset(bp, CAM_FIP_MCAST_LINE), 0);
6633 
6634 	return 0;
6635 }
6636 #endif
6637 
bnx2x_fill_cl_init_data(struct bnx2x * bp,struct bnx2x_client_init_params * params,u8 activate,struct client_init_ramrod_data * data)6638 static void bnx2x_fill_cl_init_data(struct bnx2x *bp,
6639 				    struct bnx2x_client_init_params *params,
6640 				    u8 activate,
6641 				    struct client_init_ramrod_data *data)
6642 {
6643 	/* Clear the buffer */
6644 	memset(data, 0, sizeof(*data));
6645 
6646 	/* general */
6647 	data->general.client_id = params->rxq_params.cl_id;
6648 	data->general.statistics_counter_id = params->rxq_params.stat_id;
6649 	data->general.statistics_en_flg =
6650 		(params->rxq_params.flags & QUEUE_FLG_STATS) ? 1 : 0;
6651 	data->general.is_fcoe_flg =
6652 		(params->ramrod_params.flags & CLIENT_IS_FCOE) ? 1 : 0;
6653 	data->general.activate_flg = activate;
6654 	data->general.sp_client_id = params->rxq_params.spcl_id;
6655 
6656 	/* Rx data */
6657 	data->rx.tpa_en_flg =
6658 		(params->rxq_params.flags & QUEUE_FLG_TPA) ? 1 : 0;
6659 	data->rx.vmqueue_mode_en_flg = 0;
6660 	data->rx.cache_line_alignment_log_size =
6661 		params->rxq_params.cache_line_log;
6662 	data->rx.enable_dynamic_hc =
6663 		(params->rxq_params.flags & QUEUE_FLG_DHC) ? 1 : 0;
6664 	data->rx.max_sges_for_packet = params->rxq_params.max_sges_pkt;
6665 	data->rx.client_qzone_id = params->rxq_params.cl_qzone_id;
6666 	data->rx.max_agg_size = params->rxq_params.tpa_agg_sz;
6667 
6668 	/* We don't set drop flags */
6669 	data->rx.drop_ip_cs_err_flg = 0;
6670 	data->rx.drop_tcp_cs_err_flg = 0;
6671 	data->rx.drop_ttl0_flg = 0;
6672 	data->rx.drop_udp_cs_err_flg = 0;
6673 
6674 	data->rx.inner_vlan_removal_enable_flg =
6675 		(params->rxq_params.flags & QUEUE_FLG_VLAN) ? 1 : 0;
6676 	data->rx.outer_vlan_removal_enable_flg =
6677 		(params->rxq_params.flags & QUEUE_FLG_OV) ? 1 : 0;
6678 	data->rx.status_block_id = params->rxq_params.fw_sb_id;
6679 	data->rx.rx_sb_index_number = params->rxq_params.sb_cq_index;
6680 	data->rx.bd_buff_size = cpu_to_le16(params->rxq_params.buf_sz);
6681 	data->rx.sge_buff_size = cpu_to_le16(params->rxq_params.sge_buf_sz);
6682 	data->rx.mtu = cpu_to_le16(params->rxq_params.mtu);
6683 	data->rx.bd_page_base.lo =
6684 		cpu_to_le32(U64_LO(params->rxq_params.dscr_map));
6685 	data->rx.bd_page_base.hi =
6686 		cpu_to_le32(U64_HI(params->rxq_params.dscr_map));
6687 	data->rx.sge_page_base.lo =
6688 		cpu_to_le32(U64_LO(params->rxq_params.sge_map));
6689 	data->rx.sge_page_base.hi =
6690 		cpu_to_le32(U64_HI(params->rxq_params.sge_map));
6691 	data->rx.cqe_page_base.lo =
6692 		cpu_to_le32(U64_LO(params->rxq_params.rcq_map));
6693 	data->rx.cqe_page_base.hi =
6694 		cpu_to_le32(U64_HI(params->rxq_params.rcq_map));
6695 	data->rx.is_leading_rss =
6696 		(params->ramrod_params.flags & CLIENT_IS_LEADING_RSS) ? 1 : 0;
6697 	data->rx.is_approx_mcast = data->rx.is_leading_rss;
6698 
6699 	/* Tx data */
6700 	data->tx.enforce_security_flg = 0; /* VF specific */
6701 	data->tx.tx_status_block_id = params->txq_params.fw_sb_id;
6702 	data->tx.tx_sb_index_number = params->txq_params.sb_cq_index;
6703 	data->tx.mtu = 0; /* VF specific */
6704 	data->tx.tx_bd_page_base.lo =
6705 		cpu_to_le32(U64_LO(params->txq_params.dscr_map));
6706 	data->tx.tx_bd_page_base.hi =
6707 		cpu_to_le32(U64_HI(params->txq_params.dscr_map));
6708 
6709 	/* flow control data */
6710 	data->fc.cqe_pause_thr_low = cpu_to_le16(params->pause.rcq_th_lo);
6711 	data->fc.cqe_pause_thr_high = cpu_to_le16(params->pause.rcq_th_hi);
6712 	data->fc.bd_pause_thr_low = cpu_to_le16(params->pause.bd_th_lo);
6713 	data->fc.bd_pause_thr_high = cpu_to_le16(params->pause.bd_th_hi);
6714 	data->fc.sge_pause_thr_low = cpu_to_le16(params->pause.sge_th_lo);
6715 	data->fc.sge_pause_thr_high = cpu_to_le16(params->pause.sge_th_hi);
6716 	data->fc.rx_cos_mask = cpu_to_le16(params->pause.pri_map);
6717 
6718 	data->fc.safc_group_num = params->txq_params.cos;
6719 	data->fc.safc_group_en_flg =
6720 		(params->txq_params.flags & QUEUE_FLG_COS) ? 1 : 0;
6721 	data->fc.traffic_type =
6722 		(params->ramrod_params.flags & CLIENT_IS_FCOE) ?
6723 		LLFC_TRAFFIC_TYPE_FCOE : LLFC_TRAFFIC_TYPE_NW;
6724 }
6725 
bnx2x_set_ctx_validation(struct eth_context * cxt,u32 cid)6726 static inline void bnx2x_set_ctx_validation(struct eth_context *cxt, u32 cid)
6727 {
6728 	/* ustorm cxt validation */
6729 	cxt->ustorm_ag_context.cdu_usage =
6730 		CDU_RSRVD_VALUE_TYPE_A(cid, CDU_REGION_NUMBER_UCM_AG,
6731 				       ETH_CONNECTION_TYPE);
6732 	/* xcontext validation */
6733 	cxt->xstorm_ag_context.cdu_reserved =
6734 		CDU_RSRVD_VALUE_TYPE_A(cid, CDU_REGION_NUMBER_XCM_AG,
6735 				       ETH_CONNECTION_TYPE);
6736 }
6737 
bnx2x_setup_fw_client(struct bnx2x * bp,struct bnx2x_client_init_params * params,u8 activate,struct client_init_ramrod_data * data,dma_addr_t data_mapping)6738 static int bnx2x_setup_fw_client(struct bnx2x *bp,
6739 				 struct bnx2x_client_init_params *params,
6740 				 u8 activate,
6741 				 struct client_init_ramrod_data *data,
6742 				 dma_addr_t data_mapping)
6743 {
6744 	u16 hc_usec;
6745 	int ramrod = RAMROD_CMD_ID_ETH_CLIENT_SETUP;
6746 	int ramrod_flags = 0, rc;
6747 
6748 	/* HC and context validation values */
6749 	hc_usec = params->txq_params.hc_rate ?
6750 		1000000 / params->txq_params.hc_rate : 0;
6751 	bnx2x_update_coalesce_sb_index(bp,
6752 			params->txq_params.fw_sb_id,
6753 			params->txq_params.sb_cq_index,
6754 			!(params->txq_params.flags & QUEUE_FLG_HC),
6755 			hc_usec);
6756 
6757 	*(params->ramrod_params.pstate) = BNX2X_FP_STATE_OPENING;
6758 
6759 	hc_usec = params->rxq_params.hc_rate ?
6760 		1000000 / params->rxq_params.hc_rate : 0;
6761 	bnx2x_update_coalesce_sb_index(bp,
6762 			params->rxq_params.fw_sb_id,
6763 			params->rxq_params.sb_cq_index,
6764 			!(params->rxq_params.flags & QUEUE_FLG_HC),
6765 			hc_usec);
6766 
6767 	bnx2x_set_ctx_validation(params->rxq_params.cxt,
6768 				 params->rxq_params.cid);
6769 
6770 	/* zero stats */
6771 	if (params->txq_params.flags & QUEUE_FLG_STATS)
6772 		storm_memset_xstats_zero(bp, BP_PORT(bp),
6773 					 params->txq_params.stat_id);
6774 
6775 	if (params->rxq_params.flags & QUEUE_FLG_STATS) {
6776 		storm_memset_ustats_zero(bp, BP_PORT(bp),
6777 					 params->rxq_params.stat_id);
6778 		storm_memset_tstats_zero(bp, BP_PORT(bp),
6779 					 params->rxq_params.stat_id);
6780 	}
6781 
6782 	/* Fill the ramrod data */
6783 	bnx2x_fill_cl_init_data(bp, params, activate, data);
6784 
6785 	/* SETUP ramrod.
6786 	 *
6787 	 * bnx2x_sp_post() takes a spin_lock thus no other explict memory
6788 	 * barrier except from mmiowb() is needed to impose a
6789 	 * proper ordering of memory operations.
6790 	 */
6791 	mmiowb();
6792 
6793 
6794 	bnx2x_sp_post(bp, ramrod, params->ramrod_params.cid,
6795 		      U64_HI(data_mapping), U64_LO(data_mapping), 0);
6796 
6797 	/* Wait for completion */
6798 	rc = bnx2x_wait_ramrod(bp, params->ramrod_params.state,
6799 				 params->ramrod_params.index,
6800 				 params->ramrod_params.pstate,
6801 				 ramrod_flags);
6802 	return rc;
6803 }
6804 
6805 /**
6806  * Configure interrupt mode according to current configuration.
6807  * In case of MSI-X it will also try to enable MSI-X.
6808  *
6809  * @param bp
6810  *
6811  * @return int
6812  */
bnx2x_set_int_mode(struct bnx2x * bp)6813 static int __devinit bnx2x_set_int_mode(struct bnx2x *bp)
6814 {
6815 	int rc = 0;
6816 
6817 	switch (bp->int_mode) {
6818 	case INT_MODE_MSI:
6819 		bnx2x_enable_msi(bp);
6820 		/* falling through... */
6821 	case INT_MODE_INTx:
6822 		bp->num_queues = 1 + NONE_ETH_CONTEXT_USE;
6823 		DP(NETIF_MSG_IFUP, "set number of queues to 1\n");
6824 		break;
6825 	default:
6826 		/* Set number of queues according to bp->multi_mode value */
6827 		bnx2x_set_num_queues(bp);
6828 
6829 		DP(NETIF_MSG_IFUP, "set number of queues to %d\n",
6830 		   bp->num_queues);
6831 
6832 		/* if we can't use MSI-X we only need one fp,
6833 		 * so try to enable MSI-X with the requested number of fp's
6834 		 * and fallback to MSI or legacy INTx with one fp
6835 		 */
6836 		rc = bnx2x_enable_msix(bp);
6837 		if (rc) {
6838 			/* failed to enable MSI-X */
6839 			if (bp->multi_mode)
6840 				DP(NETIF_MSG_IFUP,
6841 					  "Multi requested but failed to "
6842 					  "enable MSI-X (%d), "
6843 					  "set number of queues to %d\n",
6844 				   bp->num_queues,
6845 				   1 + NONE_ETH_CONTEXT_USE);
6846 			bp->num_queues = 1 + NONE_ETH_CONTEXT_USE;
6847 
6848 			if (!(bp->flags & DISABLE_MSI_FLAG))
6849 				bnx2x_enable_msi(bp);
6850 		}
6851 
6852 		break;
6853 	}
6854 
6855 	return rc;
6856 }
6857 
6858 /* must be called prioir to any HW initializations */
bnx2x_cid_ilt_lines(struct bnx2x * bp)6859 static inline u16 bnx2x_cid_ilt_lines(struct bnx2x *bp)
6860 {
6861 	return L2_ILT_LINES(bp);
6862 }
6863 
bnx2x_ilt_set_info(struct bnx2x * bp)6864 void bnx2x_ilt_set_info(struct bnx2x *bp)
6865 {
6866 	struct ilt_client_info *ilt_client;
6867 	struct bnx2x_ilt *ilt = BP_ILT(bp);
6868 	u16 line = 0;
6869 
6870 	ilt->start_line = FUNC_ILT_BASE(BP_FUNC(bp));
6871 	DP(BNX2X_MSG_SP, "ilt starts at line %d\n", ilt->start_line);
6872 
6873 	/* CDU */
6874 	ilt_client = &ilt->clients[ILT_CLIENT_CDU];
6875 	ilt_client->client_num = ILT_CLIENT_CDU;
6876 	ilt_client->page_size = CDU_ILT_PAGE_SZ;
6877 	ilt_client->flags = ILT_CLIENT_SKIP_MEM;
6878 	ilt_client->start = line;
6879 	line += L2_ILT_LINES(bp);
6880 #ifdef BCM_CNIC
6881 	line += CNIC_ILT_LINES;
6882 #endif
6883 	ilt_client->end = line - 1;
6884 
6885 	DP(BNX2X_MSG_SP, "ilt client[CDU]: start %d, end %d, psz 0x%x, "
6886 					 "flags 0x%x, hw psz %d\n",
6887 	   ilt_client->start,
6888 	   ilt_client->end,
6889 	   ilt_client->page_size,
6890 	   ilt_client->flags,
6891 	   ilog2(ilt_client->page_size >> 12));
6892 
6893 	/* QM */
6894 	if (QM_INIT(bp->qm_cid_count)) {
6895 		ilt_client = &ilt->clients[ILT_CLIENT_QM];
6896 		ilt_client->client_num = ILT_CLIENT_QM;
6897 		ilt_client->page_size = QM_ILT_PAGE_SZ;
6898 		ilt_client->flags = 0;
6899 		ilt_client->start = line;
6900 
6901 		/* 4 bytes for each cid */
6902 		line += DIV_ROUND_UP(bp->qm_cid_count * QM_QUEUES_PER_FUNC * 4,
6903 							 QM_ILT_PAGE_SZ);
6904 
6905 		ilt_client->end = line - 1;
6906 
6907 		DP(BNX2X_MSG_SP, "ilt client[QM]: start %d, end %d, psz 0x%x, "
6908 						 "flags 0x%x, hw psz %d\n",
6909 		   ilt_client->start,
6910 		   ilt_client->end,
6911 		   ilt_client->page_size,
6912 		   ilt_client->flags,
6913 		   ilog2(ilt_client->page_size >> 12));
6914 
6915 	}
6916 	/* SRC */
6917 	ilt_client = &ilt->clients[ILT_CLIENT_SRC];
6918 #ifdef BCM_CNIC
6919 	ilt_client->client_num = ILT_CLIENT_SRC;
6920 	ilt_client->page_size = SRC_ILT_PAGE_SZ;
6921 	ilt_client->flags = 0;
6922 	ilt_client->start = line;
6923 	line += SRC_ILT_LINES;
6924 	ilt_client->end = line - 1;
6925 
6926 	DP(BNX2X_MSG_SP, "ilt client[SRC]: start %d, end %d, psz 0x%x, "
6927 					 "flags 0x%x, hw psz %d\n",
6928 	   ilt_client->start,
6929 	   ilt_client->end,
6930 	   ilt_client->page_size,
6931 	   ilt_client->flags,
6932 	   ilog2(ilt_client->page_size >> 12));
6933 
6934 #else
6935 	ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
6936 #endif
6937 
6938 	/* TM */
6939 	ilt_client = &ilt->clients[ILT_CLIENT_TM];
6940 #ifdef BCM_CNIC
6941 	ilt_client->client_num = ILT_CLIENT_TM;
6942 	ilt_client->page_size = TM_ILT_PAGE_SZ;
6943 	ilt_client->flags = 0;
6944 	ilt_client->start = line;
6945 	line += TM_ILT_LINES;
6946 	ilt_client->end = line - 1;
6947 
6948 	DP(BNX2X_MSG_SP, "ilt client[TM]: start %d, end %d, psz 0x%x, "
6949 					 "flags 0x%x, hw psz %d\n",
6950 	   ilt_client->start,
6951 	   ilt_client->end,
6952 	   ilt_client->page_size,
6953 	   ilt_client->flags,
6954 	   ilog2(ilt_client->page_size >> 12));
6955 
6956 #else
6957 	ilt_client->flags = (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM);
6958 #endif
6959 }
6960 
bnx2x_setup_client(struct bnx2x * bp,struct bnx2x_fastpath * fp,int is_leading)6961 int bnx2x_setup_client(struct bnx2x *bp, struct bnx2x_fastpath *fp,
6962 		       int is_leading)
6963 {
6964 	struct bnx2x_client_init_params params = { {0} };
6965 	int rc;
6966 
6967 	/* reset IGU state skip FCoE L2 queue */
6968 	if (!IS_FCOE_FP(fp))
6969 		bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0,
6970 			     IGU_INT_ENABLE, 0);
6971 
6972 	params.ramrod_params.pstate = &fp->state;
6973 	params.ramrod_params.state = BNX2X_FP_STATE_OPEN;
6974 	params.ramrod_params.index = fp->index;
6975 	params.ramrod_params.cid = fp->cid;
6976 
6977 #ifdef BCM_CNIC
6978 	if (IS_FCOE_FP(fp))
6979 		params.ramrod_params.flags |= CLIENT_IS_FCOE;
6980 
6981 #endif
6982 
6983 	if (is_leading)
6984 		params.ramrod_params.flags |= CLIENT_IS_LEADING_RSS;
6985 
6986 	bnx2x_pf_rx_cl_prep(bp, fp, &params.pause, &params.rxq_params);
6987 
6988 	bnx2x_pf_tx_cl_prep(bp, fp, &params.txq_params);
6989 
6990 	rc = bnx2x_setup_fw_client(bp, &params, 1,
6991 				     bnx2x_sp(bp, client_init_data),
6992 				     bnx2x_sp_mapping(bp, client_init_data));
6993 	return rc;
6994 }
6995 
bnx2x_stop_fw_client(struct bnx2x * bp,struct bnx2x_client_ramrod_params * p)6996 static int bnx2x_stop_fw_client(struct bnx2x *bp,
6997 				struct bnx2x_client_ramrod_params *p)
6998 {
6999 	int rc;
7000 
7001 	int poll_flag = p->poll ? WAIT_RAMROD_POLL : 0;
7002 
7003 	/* halt the connection */
7004 	*p->pstate = BNX2X_FP_STATE_HALTING;
7005 	bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_HALT, p->cid, 0,
7006 						  p->cl_id, 0);
7007 
7008 	/* Wait for completion */
7009 	rc = bnx2x_wait_ramrod(bp, BNX2X_FP_STATE_HALTED, p->index,
7010 			       p->pstate, poll_flag);
7011 	if (rc) /* timeout */
7012 		return rc;
7013 
7014 	*p->pstate = BNX2X_FP_STATE_TERMINATING;
7015 	bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_TERMINATE, p->cid, 0,
7016 						       p->cl_id, 0);
7017 	/* Wait for completion */
7018 	rc = bnx2x_wait_ramrod(bp, BNX2X_FP_STATE_TERMINATED, p->index,
7019 			       p->pstate, poll_flag);
7020 	if (rc) /* timeout */
7021 		return rc;
7022 
7023 
7024 	/* delete cfc entry */
7025 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_CFC_DEL, p->cid, 0, 0, 1);
7026 
7027 	/* Wait for completion */
7028 	rc = bnx2x_wait_ramrod(bp, BNX2X_FP_STATE_CLOSED, p->index,
7029 			       p->pstate, WAIT_RAMROD_COMMON);
7030 	return rc;
7031 }
7032 
bnx2x_stop_client(struct bnx2x * bp,int index)7033 static int bnx2x_stop_client(struct bnx2x *bp, int index)
7034 {
7035 	struct bnx2x_client_ramrod_params client_stop = {0};
7036 	struct bnx2x_fastpath *fp = &bp->fp[index];
7037 
7038 	client_stop.index = index;
7039 	client_stop.cid = fp->cid;
7040 	client_stop.cl_id = fp->cl_id;
7041 	client_stop.pstate = &(fp->state);
7042 	client_stop.poll = 0;
7043 
7044 	return bnx2x_stop_fw_client(bp, &client_stop);
7045 }
7046 
7047 
bnx2x_reset_func(struct bnx2x * bp)7048 static void bnx2x_reset_func(struct bnx2x *bp)
7049 {
7050 	int port = BP_PORT(bp);
7051 	int func = BP_FUNC(bp);
7052 	int i;
7053 	int pfunc_offset_fp = offsetof(struct hc_sb_data, p_func) +
7054 			(CHIP_IS_E2(bp) ?
7055 			 offsetof(struct hc_status_block_data_e2, common) :
7056 			 offsetof(struct hc_status_block_data_e1x, common));
7057 	int pfunc_offset_sp = offsetof(struct hc_sp_status_block_data, p_func);
7058 	int pfid_offset = offsetof(struct pci_entity, pf_id);
7059 
7060 	/* Disable the function in the FW */
7061 	REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(func), 0);
7062 	REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(func), 0);
7063 	REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(func), 0);
7064 	REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(func), 0);
7065 
7066 	/* FP SBs */
7067 	for_each_eth_queue(bp, i) {
7068 		struct bnx2x_fastpath *fp = &bp->fp[i];
7069 		REG_WR8(bp,
7070 			BAR_CSTRORM_INTMEM +
7071 			CSTORM_STATUS_BLOCK_DATA_OFFSET(fp->fw_sb_id)
7072 			+ pfunc_offset_fp + pfid_offset,
7073 			HC_FUNCTION_DISABLED);
7074 	}
7075 
7076 	/* SP SB */
7077 	REG_WR8(bp,
7078 		BAR_CSTRORM_INTMEM +
7079 		CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(func) +
7080 		pfunc_offset_sp + pfid_offset,
7081 		HC_FUNCTION_DISABLED);
7082 
7083 
7084 	for (i = 0; i < XSTORM_SPQ_DATA_SIZE / 4; i++)
7085 		REG_WR(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_DATA_OFFSET(func),
7086 		       0);
7087 
7088 	/* Configure IGU */
7089 	if (bp->common.int_block == INT_BLOCK_HC) {
7090 		REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, 0);
7091 		REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, 0);
7092 	} else {
7093 		REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, 0);
7094 		REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, 0);
7095 	}
7096 
7097 #ifdef BCM_CNIC
7098 	/* Disable Timer scan */
7099 	REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0);
7100 	/*
7101 	 * Wait for at least 10ms and up to 2 second for the timers scan to
7102 	 * complete
7103 	 */
7104 	for (i = 0; i < 200; i++) {
7105 		msleep(10);
7106 		if (!REG_RD(bp, TM_REG_LIN0_SCAN_ON + port*4))
7107 			break;
7108 	}
7109 #endif
7110 	/* Clear ILT */
7111 	bnx2x_clear_func_ilt(bp, func);
7112 
7113 	/* Timers workaround bug for E2: if this is vnic-3,
7114 	 * we need to set the entire ilt range for this timers.
7115 	 */
7116 	if (CHIP_IS_E2(bp) && BP_VN(bp) == 3) {
7117 		struct ilt_client_info ilt_cli;
7118 		/* use dummy TM client */
7119 		memset(&ilt_cli, 0, sizeof(struct ilt_client_info));
7120 		ilt_cli.start = 0;
7121 		ilt_cli.end = ILT_NUM_PAGE_ENTRIES - 1;
7122 		ilt_cli.client_num = ILT_CLIENT_TM;
7123 
7124 		bnx2x_ilt_boundry_init_op(bp, &ilt_cli, 0, INITOP_CLEAR);
7125 	}
7126 
7127 	/* this assumes that reset_port() called before reset_func()*/
7128 	if (CHIP_IS_E2(bp))
7129 		bnx2x_pf_disable(bp);
7130 
7131 	bp->dmae_ready = 0;
7132 }
7133 
bnx2x_reset_port(struct bnx2x * bp)7134 static void bnx2x_reset_port(struct bnx2x *bp)
7135 {
7136 	int port = BP_PORT(bp);
7137 	u32 val;
7138 
7139 	REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
7140 
7141 	/* Do not rcv packets to BRB */
7142 	REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + port*4, 0x0);
7143 	/* Do not direct rcv packets that are not for MCP to the BRB */
7144 	REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP :
7145 			   NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
7146 
7147 	/* Configure AEU */
7148 	REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, 0);
7149 
7150 	msleep(100);
7151 	/* Check for BRB port occupancy */
7152 	val = REG_RD(bp, BRB1_REG_PORT_NUM_OCC_BLOCKS_0 + port*4);
7153 	if (val)
7154 		DP(NETIF_MSG_IFDOWN,
7155 		   "BRB1 is not empty  %d blocks are occupied\n", val);
7156 
7157 	/* TODO: Close Doorbell port? */
7158 }
7159 
bnx2x_reset_chip(struct bnx2x * bp,u32 reset_code)7160 static void bnx2x_reset_chip(struct bnx2x *bp, u32 reset_code)
7161 {
7162 	DP(BNX2X_MSG_MCP, "function %d  reset_code %x\n",
7163 	   BP_ABS_FUNC(bp), reset_code);
7164 
7165 	switch (reset_code) {
7166 	case FW_MSG_CODE_DRV_UNLOAD_COMMON:
7167 		bnx2x_reset_port(bp);
7168 		bnx2x_reset_func(bp);
7169 		bnx2x_reset_common(bp);
7170 		break;
7171 
7172 	case FW_MSG_CODE_DRV_UNLOAD_PORT:
7173 		bnx2x_reset_port(bp);
7174 		bnx2x_reset_func(bp);
7175 		break;
7176 
7177 	case FW_MSG_CODE_DRV_UNLOAD_FUNCTION:
7178 		bnx2x_reset_func(bp);
7179 		break;
7180 
7181 	default:
7182 		BNX2X_ERR("Unknown reset_code (0x%x) from MCP\n", reset_code);
7183 		break;
7184 	}
7185 }
7186 
7187 #ifdef BCM_CNIC
bnx2x_del_fcoe_eth_macs(struct bnx2x * bp)7188 static inline void bnx2x_del_fcoe_eth_macs(struct bnx2x *bp)
7189 {
7190 	if (bp->flags & FCOE_MACS_SET) {
7191 		if (!IS_MF_SD(bp))
7192 			bnx2x_set_fip_eth_mac_addr(bp, 0);
7193 
7194 		bnx2x_set_all_enode_macs(bp, 0);
7195 
7196 		bp->flags &= ~FCOE_MACS_SET;
7197 	}
7198 }
7199 #endif
7200 
bnx2x_chip_cleanup(struct bnx2x * bp,int unload_mode)7201 void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode)
7202 {
7203 	int port = BP_PORT(bp);
7204 	u32 reset_code = 0;
7205 	int i, cnt, rc;
7206 
7207 	/* Wait until tx fastpath tasks complete */
7208 	for_each_tx_queue(bp, i) {
7209 		struct bnx2x_fastpath *fp = &bp->fp[i];
7210 
7211 		cnt = 1000;
7212 		while (bnx2x_has_tx_work_unload(fp)) {
7213 
7214 			if (!cnt) {
7215 				BNX2X_ERR("timeout waiting for queue[%d]\n",
7216 					  i);
7217 #ifdef BNX2X_STOP_ON_ERROR
7218 				bnx2x_panic();
7219 				return -EBUSY;
7220 #else
7221 				break;
7222 #endif
7223 			}
7224 			cnt--;
7225 			msleep(1);
7226 		}
7227 	}
7228 	/* Give HW time to discard old tx messages */
7229 	msleep(1);
7230 
7231 	bnx2x_set_eth_mac(bp, 0);
7232 
7233 	bnx2x_invalidate_uc_list(bp);
7234 
7235 	if (CHIP_IS_E1(bp))
7236 		bnx2x_invalidate_e1_mc_list(bp);
7237 	else {
7238 		bnx2x_invalidate_e1h_mc_list(bp);
7239 		REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);
7240 	}
7241 
7242 #ifdef BCM_CNIC
7243 	bnx2x_del_fcoe_eth_macs(bp);
7244 #endif
7245 
7246 	if (unload_mode == UNLOAD_NORMAL)
7247 		reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
7248 
7249 	else if (bp->flags & NO_WOL_FLAG)
7250 		reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP;
7251 
7252 	else if (bp->wol) {
7253 		u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
7254 		u8 *mac_addr = bp->dev->dev_addr;
7255 		u32 val;
7256 		/* The mac address is written to entries 1-4 to
7257 		   preserve entry 0 which is used by the PMF */
7258 		u8 entry = (BP_E1HVN(bp) + 1)*8;
7259 
7260 		val = (mac_addr[0] << 8) | mac_addr[1];
7261 		EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry, val);
7262 
7263 		val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
7264 		      (mac_addr[4] << 8) | mac_addr[5];
7265 		EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry + 4, val);
7266 
7267 		reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_EN;
7268 
7269 	} else
7270 		reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
7271 
7272 	/* Close multi and leading connections
7273 	   Completions for ramrods are collected in a synchronous way */
7274 	for_each_queue(bp, i)
7275 
7276 		if (bnx2x_stop_client(bp, i))
7277 #ifdef BNX2X_STOP_ON_ERROR
7278 			return;
7279 #else
7280 			goto unload_error;
7281 #endif
7282 
7283 	rc = bnx2x_func_stop(bp);
7284 	if (rc) {
7285 		BNX2X_ERR("Function stop failed!\n");
7286 #ifdef BNX2X_STOP_ON_ERROR
7287 		return;
7288 #else
7289 		goto unload_error;
7290 #endif
7291 	}
7292 #ifndef BNX2X_STOP_ON_ERROR
7293 unload_error:
7294 #endif
7295 	if (!BP_NOMCP(bp))
7296 		reset_code = bnx2x_fw_command(bp, reset_code, 0);
7297 	else {
7298 		DP(NETIF_MSG_IFDOWN, "NO MCP - load counts[%d]      "
7299 				     "%d, %d, %d\n", BP_PATH(bp),
7300 		   load_count[BP_PATH(bp)][0],
7301 		   load_count[BP_PATH(bp)][1],
7302 		   load_count[BP_PATH(bp)][2]);
7303 		load_count[BP_PATH(bp)][0]--;
7304 		load_count[BP_PATH(bp)][1 + port]--;
7305 		DP(NETIF_MSG_IFDOWN, "NO MCP - new load counts[%d]  "
7306 				     "%d, %d, %d\n", BP_PATH(bp),
7307 		   load_count[BP_PATH(bp)][0], load_count[BP_PATH(bp)][1],
7308 		   load_count[BP_PATH(bp)][2]);
7309 		if (load_count[BP_PATH(bp)][0] == 0)
7310 			reset_code = FW_MSG_CODE_DRV_UNLOAD_COMMON;
7311 		else if (load_count[BP_PATH(bp)][1 + port] == 0)
7312 			reset_code = FW_MSG_CODE_DRV_UNLOAD_PORT;
7313 		else
7314 			reset_code = FW_MSG_CODE_DRV_UNLOAD_FUNCTION;
7315 	}
7316 
7317 	if ((reset_code == FW_MSG_CODE_DRV_UNLOAD_COMMON) ||
7318 	    (reset_code == FW_MSG_CODE_DRV_UNLOAD_PORT))
7319 		bnx2x__link_reset(bp);
7320 
7321 	/* Disable HW interrupts, NAPI */
7322 	bnx2x_netif_stop(bp, 1);
7323 
7324 	/* Release IRQs */
7325 	bnx2x_free_irq(bp);
7326 
7327 	/* Reset the chip */
7328 	bnx2x_reset_chip(bp, reset_code);
7329 
7330 	/* Report UNLOAD_DONE to MCP */
7331 	if (!BP_NOMCP(bp))
7332 		bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
7333 
7334 }
7335 
bnx2x_disable_close_the_gate(struct bnx2x * bp)7336 void bnx2x_disable_close_the_gate(struct bnx2x *bp)
7337 {
7338 	u32 val;
7339 
7340 	DP(NETIF_MSG_HW, "Disabling \"close the gates\"\n");
7341 
7342 	if (CHIP_IS_E1(bp)) {
7343 		int port = BP_PORT(bp);
7344 		u32 addr = port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
7345 			MISC_REG_AEU_MASK_ATTN_FUNC_0;
7346 
7347 		val = REG_RD(bp, addr);
7348 		val &= ~(0x300);
7349 		REG_WR(bp, addr, val);
7350 	} else if (CHIP_IS_E1H(bp)) {
7351 		val = REG_RD(bp, MISC_REG_AEU_GENERAL_MASK);
7352 		val &= ~(MISC_AEU_GENERAL_MASK_REG_AEU_PXP_CLOSE_MASK |
7353 			 MISC_AEU_GENERAL_MASK_REG_AEU_NIG_CLOSE_MASK);
7354 		REG_WR(bp, MISC_REG_AEU_GENERAL_MASK, val);
7355 	}
7356 }
7357 
7358 /* Close gates #2, #3 and #4: */
bnx2x_set_234_gates(struct bnx2x * bp,bool close)7359 static void bnx2x_set_234_gates(struct bnx2x *bp, bool close)
7360 {
7361 	u32 val, addr;
7362 
7363 	/* Gates #2 and #4a are closed/opened for "not E1" only */
7364 	if (!CHIP_IS_E1(bp)) {
7365 		/* #4 */
7366 		val = REG_RD(bp, PXP_REG_HST_DISCARD_DOORBELLS);
7367 		REG_WR(bp, PXP_REG_HST_DISCARD_DOORBELLS,
7368 		       close ? (val | 0x1) : (val & (~(u32)1)));
7369 		/* #2 */
7370 		val = REG_RD(bp, PXP_REG_HST_DISCARD_INTERNAL_WRITES);
7371 		REG_WR(bp, PXP_REG_HST_DISCARD_INTERNAL_WRITES,
7372 		       close ? (val | 0x1) : (val & (~(u32)1)));
7373 	}
7374 
7375 	/* #3 */
7376 	addr = BP_PORT(bp) ? HC_REG_CONFIG_1 : HC_REG_CONFIG_0;
7377 	val = REG_RD(bp, addr);
7378 	REG_WR(bp, addr, (!close) ? (val | 0x1) : (val & (~(u32)1)));
7379 
7380 	DP(NETIF_MSG_HW, "%s gates #2, #3 and #4\n",
7381 		close ? "closing" : "opening");
7382 	mmiowb();
7383 }
7384 
7385 #define SHARED_MF_CLP_MAGIC  0x80000000 /* `magic' bit */
7386 
bnx2x_clp_reset_prep(struct bnx2x * bp,u32 * magic_val)7387 static void bnx2x_clp_reset_prep(struct bnx2x *bp, u32 *magic_val)
7388 {
7389 	/* Do some magic... */
7390 	u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
7391 	*magic_val = val & SHARED_MF_CLP_MAGIC;
7392 	MF_CFG_WR(bp, shared_mf_config.clp_mb, val | SHARED_MF_CLP_MAGIC);
7393 }
7394 
7395 /* Restore the value of the `magic' bit.
7396  *
7397  * @param pdev Device handle.
7398  * @param magic_val Old value of the `magic' bit.
7399  */
bnx2x_clp_reset_done(struct bnx2x * bp,u32 magic_val)7400 static void bnx2x_clp_reset_done(struct bnx2x *bp, u32 magic_val)
7401 {
7402 	/* Restore the `magic' bit value... */
7403 	u32 val = MF_CFG_RD(bp, shared_mf_config.clp_mb);
7404 	MF_CFG_WR(bp, shared_mf_config.clp_mb,
7405 		(val & (~SHARED_MF_CLP_MAGIC)) | magic_val);
7406 }
7407 
7408 /**
7409  * Prepares for MCP reset: takes care of CLP configurations.
7410  *
7411  * @param bp
7412  * @param magic_val Old value of 'magic' bit.
7413  */
bnx2x_reset_mcp_prep(struct bnx2x * bp,u32 * magic_val)7414 static void bnx2x_reset_mcp_prep(struct bnx2x *bp, u32 *magic_val)
7415 {
7416 	u32 shmem;
7417 	u32 validity_offset;
7418 
7419 	DP(NETIF_MSG_HW, "Starting\n");
7420 
7421 	/* Set `magic' bit in order to save MF config */
7422 	if (!CHIP_IS_E1(bp))
7423 		bnx2x_clp_reset_prep(bp, magic_val);
7424 
7425 	/* Get shmem offset */
7426 	shmem = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
7427 	validity_offset = offsetof(struct shmem_region, validity_map[0]);
7428 
7429 	/* Clear validity map flags */
7430 	if (shmem > 0)
7431 		REG_WR(bp, shmem + validity_offset, 0);
7432 }
7433 
7434 #define MCP_TIMEOUT      5000   /* 5 seconds (in ms) */
7435 #define MCP_ONE_TIMEOUT  100    /* 100 ms */
7436 
7437 /* Waits for MCP_ONE_TIMEOUT or MCP_ONE_TIMEOUT*10,
7438  * depending on the HW type.
7439  *
7440  * @param bp
7441  */
bnx2x_mcp_wait_one(struct bnx2x * bp)7442 static inline void bnx2x_mcp_wait_one(struct bnx2x *bp)
7443 {
7444 	/* special handling for emulation and FPGA,
7445 	   wait 10 times longer */
7446 	if (CHIP_REV_IS_SLOW(bp))
7447 		msleep(MCP_ONE_TIMEOUT*10);
7448 	else
7449 		msleep(MCP_ONE_TIMEOUT);
7450 }
7451 
bnx2x_reset_mcp_comp(struct bnx2x * bp,u32 magic_val)7452 static int bnx2x_reset_mcp_comp(struct bnx2x *bp, u32 magic_val)
7453 {
7454 	u32 shmem, cnt, validity_offset, val;
7455 	int rc = 0;
7456 
7457 	msleep(100);
7458 
7459 	/* Get shmem offset */
7460 	shmem = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
7461 	if (shmem == 0) {
7462 		BNX2X_ERR("Shmem 0 return failure\n");
7463 		rc = -ENOTTY;
7464 		goto exit_lbl;
7465 	}
7466 
7467 	validity_offset = offsetof(struct shmem_region, validity_map[0]);
7468 
7469 	/* Wait for MCP to come up */
7470 	for (cnt = 0; cnt < (MCP_TIMEOUT / MCP_ONE_TIMEOUT); cnt++) {
7471 		/* TBD: its best to check validity map of last port.
7472 		 * currently checks on port 0.
7473 		 */
7474 		val = REG_RD(bp, shmem + validity_offset);
7475 		DP(NETIF_MSG_HW, "shmem 0x%x validity map(0x%x)=0x%x\n", shmem,
7476 		   shmem + validity_offset, val);
7477 
7478 		/* check that shared memory is valid. */
7479 		if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
7480 		    == (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
7481 			break;
7482 
7483 		bnx2x_mcp_wait_one(bp);
7484 	}
7485 
7486 	DP(NETIF_MSG_HW, "Cnt=%d Shmem validity map 0x%x\n", cnt, val);
7487 
7488 	/* Check that shared memory is valid. This indicates that MCP is up. */
7489 	if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB)) !=
7490 	    (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB)) {
7491 		BNX2X_ERR("Shmem signature not present. MCP is not up !!\n");
7492 		rc = -ENOTTY;
7493 		goto exit_lbl;
7494 	}
7495 
7496 exit_lbl:
7497 	/* Restore the `magic' bit value */
7498 	if (!CHIP_IS_E1(bp))
7499 		bnx2x_clp_reset_done(bp, magic_val);
7500 
7501 	return rc;
7502 }
7503 
bnx2x_pxp_prep(struct bnx2x * bp)7504 static void bnx2x_pxp_prep(struct bnx2x *bp)
7505 {
7506 	if (!CHIP_IS_E1(bp)) {
7507 		REG_WR(bp, PXP2_REG_RD_START_INIT, 0);
7508 		REG_WR(bp, PXP2_REG_RQ_RBC_DONE, 0);
7509 		REG_WR(bp, PXP2_REG_RQ_CFG_DONE, 0);
7510 		mmiowb();
7511 	}
7512 }
7513 
7514 /*
7515  * Reset the whole chip except for:
7516  *      - PCIE core
7517  *      - PCI Glue, PSWHST, PXP/PXP2 RF (all controlled by
7518  *              one reset bit)
7519  *      - IGU
7520  *      - MISC (including AEU)
7521  *      - GRC
7522  *      - RBCN, RBCP
7523  */
bnx2x_process_kill_chip_reset(struct bnx2x * bp)7524 static void bnx2x_process_kill_chip_reset(struct bnx2x *bp)
7525 {
7526 	u32 not_reset_mask1, reset_mask1, not_reset_mask2, reset_mask2;
7527 
7528 	not_reset_mask1 =
7529 		MISC_REGISTERS_RESET_REG_1_RST_HC |
7530 		MISC_REGISTERS_RESET_REG_1_RST_PXPV |
7531 		MISC_REGISTERS_RESET_REG_1_RST_PXP;
7532 
7533 	not_reset_mask2 =
7534 		MISC_REGISTERS_RESET_REG_2_RST_MDIO |
7535 		MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE |
7536 		MISC_REGISTERS_RESET_REG_2_RST_EMAC1_HARD_CORE |
7537 		MISC_REGISTERS_RESET_REG_2_RST_MISC_CORE |
7538 		MISC_REGISTERS_RESET_REG_2_RST_RBCN |
7539 		MISC_REGISTERS_RESET_REG_2_RST_GRC  |
7540 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_RESET_REG_HARD_CORE |
7541 		MISC_REGISTERS_RESET_REG_2_RST_MCP_N_HARD_CORE_RST_B;
7542 
7543 	reset_mask1 = 0xffffffff;
7544 
7545 	if (CHIP_IS_E1(bp))
7546 		reset_mask2 = 0xffff;
7547 	else
7548 		reset_mask2 = 0x1ffff;
7549 
7550 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
7551 	       reset_mask1 & (~not_reset_mask1));
7552 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
7553 	       reset_mask2 & (~not_reset_mask2));
7554 
7555 	barrier();
7556 	mmiowb();
7557 
7558 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, reset_mask1);
7559 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET, reset_mask2);
7560 	mmiowb();
7561 }
7562 
bnx2x_process_kill(struct bnx2x * bp)7563 static int bnx2x_process_kill(struct bnx2x *bp)
7564 {
7565 	int cnt = 1000;
7566 	u32 val = 0;
7567 	u32 sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1, pgl_exp_rom2;
7568 
7569 
7570 	/* Empty the Tetris buffer, wait for 1s */
7571 	do {
7572 		sr_cnt  = REG_RD(bp, PXP2_REG_RD_SR_CNT);
7573 		blk_cnt = REG_RD(bp, PXP2_REG_RD_BLK_CNT);
7574 		port_is_idle_0 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_0);
7575 		port_is_idle_1 = REG_RD(bp, PXP2_REG_RD_PORT_IS_IDLE_1);
7576 		pgl_exp_rom2 = REG_RD(bp, PXP2_REG_PGL_EXP_ROM2);
7577 		if ((sr_cnt == 0x7e) && (blk_cnt == 0xa0) &&
7578 		    ((port_is_idle_0 & 0x1) == 0x1) &&
7579 		    ((port_is_idle_1 & 0x1) == 0x1) &&
7580 		    (pgl_exp_rom2 == 0xffffffff))
7581 			break;
7582 		msleep(1);
7583 	} while (cnt-- > 0);
7584 
7585 	if (cnt <= 0) {
7586 		DP(NETIF_MSG_HW, "Tetris buffer didn't get empty or there"
7587 			  " are still"
7588 			  " outstanding read requests after 1s!\n");
7589 		DP(NETIF_MSG_HW, "sr_cnt=0x%08x, blk_cnt=0x%08x,"
7590 			  " port_is_idle_0=0x%08x,"
7591 			  " port_is_idle_1=0x%08x, pgl_exp_rom2=0x%08x\n",
7592 			  sr_cnt, blk_cnt, port_is_idle_0, port_is_idle_1,
7593 			  pgl_exp_rom2);
7594 		return -EAGAIN;
7595 	}
7596 
7597 	barrier();
7598 
7599 	/* Close gates #2, #3 and #4 */
7600 	bnx2x_set_234_gates(bp, true);
7601 
7602 	/* TBD: Indicate that "process kill" is in progress to MCP */
7603 
7604 	/* Clear "unprepared" bit */
7605 	REG_WR(bp, MISC_REG_UNPREPARED, 0);
7606 	barrier();
7607 
7608 	/* Make sure all is written to the chip before the reset */
7609 	mmiowb();
7610 
7611 	/* Wait for 1ms to empty GLUE and PCI-E core queues,
7612 	 * PSWHST, GRC and PSWRD Tetris buffer.
7613 	 */
7614 	msleep(1);
7615 
7616 	/* Prepare to chip reset: */
7617 	/* MCP */
7618 	bnx2x_reset_mcp_prep(bp, &val);
7619 
7620 	/* PXP */
7621 	bnx2x_pxp_prep(bp);
7622 	barrier();
7623 
7624 	/* reset the chip */
7625 	bnx2x_process_kill_chip_reset(bp);
7626 	barrier();
7627 
7628 	/* Recover after reset: */
7629 	/* MCP */
7630 	if (bnx2x_reset_mcp_comp(bp, val))
7631 		return -EAGAIN;
7632 
7633 	/* PXP */
7634 	bnx2x_pxp_prep(bp);
7635 
7636 	/* Open the gates #2, #3 and #4 */
7637 	bnx2x_set_234_gates(bp, false);
7638 
7639 	/* TBD: IGU/AEU preparation bring back the AEU/IGU to a
7640 	 * reset state, re-enable attentions. */
7641 
7642 	return 0;
7643 }
7644 
bnx2x_leader_reset(struct bnx2x * bp)7645 static int bnx2x_leader_reset(struct bnx2x *bp)
7646 {
7647 	int rc = 0;
7648 	/* Try to recover after the failure */
7649 	if (bnx2x_process_kill(bp)) {
7650 		printk(KERN_ERR "%s: Something bad had happen! Aii!\n",
7651 		       bp->dev->name);
7652 		rc = -EAGAIN;
7653 		goto exit_leader_reset;
7654 	}
7655 
7656 	/* Clear "reset is in progress" bit and update the driver state */
7657 	bnx2x_set_reset_done(bp);
7658 	bp->recovery_state = BNX2X_RECOVERY_DONE;
7659 
7660 exit_leader_reset:
7661 	bp->is_leader = 0;
7662 	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESERVED_08);
7663 	smp_wmb();
7664 	return rc;
7665 }
7666 
7667 /* Assumption: runs under rtnl lock. This together with the fact
7668  * that it's called only from bnx2x_reset_task() ensure that it
7669  * will never be called when netif_running(bp->dev) is false.
7670  */
bnx2x_parity_recover(struct bnx2x * bp)7671 static void bnx2x_parity_recover(struct bnx2x *bp)
7672 {
7673 	DP(NETIF_MSG_HW, "Handling parity\n");
7674 	while (1) {
7675 		switch (bp->recovery_state) {
7676 		case BNX2X_RECOVERY_INIT:
7677 			DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_INIT\n");
7678 			/* Try to get a LEADER_LOCK HW lock */
7679 			if (bnx2x_trylock_hw_lock(bp,
7680 				HW_LOCK_RESOURCE_RESERVED_08))
7681 				bp->is_leader = 1;
7682 
7683 			/* Stop the driver */
7684 			/* If interface has been removed - break */
7685 			if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY))
7686 				return;
7687 
7688 			bp->recovery_state = BNX2X_RECOVERY_WAIT;
7689 			/* Ensure "is_leader" and "recovery_state"
7690 			 *  update values are seen on other CPUs
7691 			 */
7692 			smp_wmb();
7693 			break;
7694 
7695 		case BNX2X_RECOVERY_WAIT:
7696 			DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_WAIT\n");
7697 			if (bp->is_leader) {
7698 				u32 load_counter = bnx2x_get_load_cnt(bp);
7699 				if (load_counter) {
7700 					/* Wait until all other functions get
7701 					 * down.
7702 					 */
7703 					schedule_delayed_work(&bp->reset_task,
7704 								HZ/10);
7705 					return;
7706 				} else {
7707 					/* If all other functions got down -
7708 					 * try to bring the chip back to
7709 					 * normal. In any case it's an exit
7710 					 * point for a leader.
7711 					 */
7712 					if (bnx2x_leader_reset(bp) ||
7713 					bnx2x_nic_load(bp, LOAD_NORMAL)) {
7714 						printk(KERN_ERR"%s: Recovery "
7715 						"has failed. Power cycle is "
7716 						"needed.\n", bp->dev->name);
7717 						/* Disconnect this device */
7718 						netif_device_detach(bp->dev);
7719 						/* Block ifup for all function
7720 						 * of this ASIC until
7721 						 * "process kill" or power
7722 						 * cycle.
7723 						 */
7724 						bnx2x_set_reset_in_progress(bp);
7725 						/* Shut down the power */
7726 						bnx2x_set_power_state(bp,
7727 								PCI_D3hot);
7728 						return;
7729 					}
7730 
7731 					return;
7732 				}
7733 			} else { /* non-leader */
7734 				if (!bnx2x_reset_is_done(bp)) {
7735 					/* Try to get a LEADER_LOCK HW lock as
7736 					 * long as a former leader may have
7737 					 * been unloaded by the user or
7738 					 * released a leadership by another
7739 					 * reason.
7740 					 */
7741 					if (bnx2x_trylock_hw_lock(bp,
7742 					    HW_LOCK_RESOURCE_RESERVED_08)) {
7743 						/* I'm a leader now! Restart a
7744 						 * switch case.
7745 						 */
7746 						bp->is_leader = 1;
7747 						break;
7748 					}
7749 
7750 					schedule_delayed_work(&bp->reset_task,
7751 								HZ/10);
7752 					return;
7753 
7754 				} else { /* A leader has completed
7755 					  * the "process kill". It's an exit
7756 					  * point for a non-leader.
7757 					  */
7758 					bnx2x_nic_load(bp, LOAD_NORMAL);
7759 					bp->recovery_state =
7760 						BNX2X_RECOVERY_DONE;
7761 					smp_wmb();
7762 					return;
7763 				}
7764 			}
7765 		default:
7766 			return;
7767 		}
7768 	}
7769 }
7770 
7771 /* bnx2x_nic_unload() flushes the bnx2x_wq, thus reset task is
7772  * scheduled on a general queue in order to prevent a dead lock.
7773  */
bnx2x_reset_task(struct work_struct * work)7774 static void bnx2x_reset_task(struct work_struct *work)
7775 {
7776 	struct bnx2x *bp = container_of(work, struct bnx2x, reset_task.work);
7777 
7778 #ifdef BNX2X_STOP_ON_ERROR
7779 	BNX2X_ERR("reset task called but STOP_ON_ERROR defined"
7780 		  " so reset not done to allow debug dump,\n"
7781 	 KERN_ERR " you will need to reboot when done\n");
7782 	return;
7783 #endif
7784 
7785 	rtnl_lock();
7786 
7787 	if (!netif_running(bp->dev))
7788 		goto reset_task_exit;
7789 
7790 	if (unlikely(bp->recovery_state != BNX2X_RECOVERY_DONE))
7791 		bnx2x_parity_recover(bp);
7792 	else {
7793 		bnx2x_nic_unload(bp, UNLOAD_NORMAL);
7794 		bnx2x_nic_load(bp, LOAD_NORMAL);
7795 	}
7796 
7797 reset_task_exit:
7798 	rtnl_unlock();
7799 }
7800 
7801 /* end of nic load/unload */
7802 
7803 /*
7804  * Init service functions
7805  */
7806 
bnx2x_get_pretend_reg(struct bnx2x * bp)7807 static u32 bnx2x_get_pretend_reg(struct bnx2x *bp)
7808 {
7809 	u32 base = PXP2_REG_PGL_PRETEND_FUNC_F0;
7810 	u32 stride = PXP2_REG_PGL_PRETEND_FUNC_F1 - base;
7811 	return base + (BP_ABS_FUNC(bp)) * stride;
7812 }
7813 
bnx2x_undi_int_disable_e1h(struct bnx2x * bp)7814 static void bnx2x_undi_int_disable_e1h(struct bnx2x *bp)
7815 {
7816 	u32 reg = bnx2x_get_pretend_reg(bp);
7817 
7818 	/* Flush all outstanding writes */
7819 	mmiowb();
7820 
7821 	/* Pretend to be function 0 */
7822 	REG_WR(bp, reg, 0);
7823 	REG_RD(bp, reg);	/* Flush the GRC transaction (in the chip) */
7824 
7825 	/* From now we are in the "like-E1" mode */
7826 	bnx2x_int_disable(bp);
7827 
7828 	/* Flush all outstanding writes */
7829 	mmiowb();
7830 
7831 	/* Restore the original function */
7832 	REG_WR(bp, reg, BP_ABS_FUNC(bp));
7833 	REG_RD(bp, reg);
7834 }
7835 
bnx2x_undi_int_disable(struct bnx2x * bp)7836 static inline void bnx2x_undi_int_disable(struct bnx2x *bp)
7837 {
7838 	if (CHIP_IS_E1(bp))
7839 		bnx2x_int_disable(bp);
7840 	else
7841 		bnx2x_undi_int_disable_e1h(bp);
7842 }
7843 
bnx2x_undi_unload(struct bnx2x * bp)7844 static void __devinit bnx2x_undi_unload(struct bnx2x *bp)
7845 {
7846 	u32 val;
7847 
7848 	/* Check if there is any driver already loaded */
7849 	val = REG_RD(bp, MISC_REG_UNPREPARED);
7850 	if (val == 0x1) {
7851 		/* Check if it is the UNDI driver
7852 		 * UNDI driver initializes CID offset for normal bell to 0x7
7853 		 */
7854 		bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
7855 		val = REG_RD(bp, DORQ_REG_NORM_CID_OFST);
7856 		if (val == 0x7) {
7857 			u32 reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
7858 			/* save our pf_num */
7859 			int orig_pf_num = bp->pf_num;
7860 			u32 swap_en;
7861 			u32 swap_val;
7862 
7863 			/* clear the UNDI indication */
7864 			REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0);
7865 
7866 			BNX2X_DEV_INFO("UNDI is active! reset device\n");
7867 
7868 			/* try unload UNDI on port 0 */
7869 			bp->pf_num = 0;
7870 			bp->fw_seq =
7871 			      (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
7872 				DRV_MSG_SEQ_NUMBER_MASK);
7873 			reset_code = bnx2x_fw_command(bp, reset_code, 0);
7874 
7875 			/* if UNDI is loaded on the other port */
7876 			if (reset_code != FW_MSG_CODE_DRV_UNLOAD_COMMON) {
7877 
7878 				/* send "DONE" for previous unload */
7879 				bnx2x_fw_command(bp,
7880 						 DRV_MSG_CODE_UNLOAD_DONE, 0);
7881 
7882 				/* unload UNDI on port 1 */
7883 				bp->pf_num = 1;
7884 				bp->fw_seq =
7885 			      (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
7886 					DRV_MSG_SEQ_NUMBER_MASK);
7887 				reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
7888 
7889 				bnx2x_fw_command(bp, reset_code, 0);
7890 			}
7891 
7892 			/* now it's safe to release the lock */
7893 			bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
7894 
7895 			bnx2x_undi_int_disable(bp);
7896 
7897 			/* close input traffic and wait for it */
7898 			/* Do not rcv packets to BRB */
7899 			REG_WR(bp,
7900 			      (BP_PORT(bp) ? NIG_REG_LLH1_BRB1_DRV_MASK :
7901 					     NIG_REG_LLH0_BRB1_DRV_MASK), 0x0);
7902 			/* Do not direct rcv packets that are not for MCP to
7903 			 * the BRB */
7904 			REG_WR(bp,
7905 			       (BP_PORT(bp) ? NIG_REG_LLH1_BRB1_NOT_MCP :
7906 					      NIG_REG_LLH0_BRB1_NOT_MCP), 0x0);
7907 			/* clear AEU */
7908 			REG_WR(bp,
7909 			     (BP_PORT(bp) ? MISC_REG_AEU_MASK_ATTN_FUNC_1 :
7910 					    MISC_REG_AEU_MASK_ATTN_FUNC_0), 0);
7911 			msleep(10);
7912 
7913 			/* save NIG port swap info */
7914 			swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
7915 			swap_en = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
7916 			/* reset device */
7917 			REG_WR(bp,
7918 			       GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR,
7919 			       0xd3ffffff);
7920 			REG_WR(bp,
7921 			       GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
7922 			       0x1403);
7923 			/* take the NIG out of reset and restore swap values */
7924 			REG_WR(bp,
7925 			       GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET,
7926 			       MISC_REGISTERS_RESET_REG_1_RST_NIG);
7927 			REG_WR(bp, NIG_REG_PORT_SWAP, swap_val);
7928 			REG_WR(bp, NIG_REG_STRAP_OVERRIDE, swap_en);
7929 
7930 			/* send unload done to the MCP */
7931 			bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
7932 
7933 			/* restore our func and fw_seq */
7934 			bp->pf_num = orig_pf_num;
7935 			bp->fw_seq =
7936 			      (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) &
7937 				DRV_MSG_SEQ_NUMBER_MASK);
7938 		} else
7939 			bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
7940 	}
7941 }
7942 
bnx2x_get_common_hwinfo(struct bnx2x * bp)7943 static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
7944 {
7945 	u32 val, val2, val3, val4, id;
7946 	u16 pmc;
7947 
7948 	/* Get the chip revision id and number. */
7949 	/* chip num:16-31, rev:12-15, metal:4-11, bond_id:0-3 */
7950 	val = REG_RD(bp, MISC_REG_CHIP_NUM);
7951 	id = ((val & 0xffff) << 16);
7952 	val = REG_RD(bp, MISC_REG_CHIP_REV);
7953 	id |= ((val & 0xf) << 12);
7954 	val = REG_RD(bp, MISC_REG_CHIP_METAL);
7955 	id |= ((val & 0xff) << 4);
7956 	val = REG_RD(bp, MISC_REG_BOND_ID);
7957 	id |= (val & 0xf);
7958 	bp->common.chip_id = id;
7959 
7960 	/* Set doorbell size */
7961 	bp->db_size = (1 << BNX2X_DB_SHIFT);
7962 
7963 	if (CHIP_IS_E2(bp)) {
7964 		val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
7965 		if ((val & 1) == 0)
7966 			val = REG_RD(bp, MISC_REG_PORT4MODE_EN);
7967 		else
7968 			val = (val >> 1) & 1;
7969 		BNX2X_DEV_INFO("chip is in %s\n", val ? "4_PORT_MODE" :
7970 						       "2_PORT_MODE");
7971 		bp->common.chip_port_mode = val ? CHIP_4_PORT_MODE :
7972 						 CHIP_2_PORT_MODE;
7973 
7974 		if (CHIP_MODE_IS_4_PORT(bp))
7975 			bp->pfid = (bp->pf_num >> 1);	/* 0..3 */
7976 		else
7977 			bp->pfid = (bp->pf_num & 0x6);	/* 0, 2, 4, 6 */
7978 	} else {
7979 		bp->common.chip_port_mode = CHIP_PORT_MODE_NONE; /* N/A */
7980 		bp->pfid = bp->pf_num;			/* 0..7 */
7981 	}
7982 
7983 	/*
7984 	 * set base FW non-default (fast path) status block id, this value is
7985 	 * used to initialize the fw_sb_id saved on the fp/queue structure to
7986 	 * determine the id used by the FW.
7987 	 */
7988 	if (CHIP_IS_E1x(bp))
7989 		bp->base_fw_ndsb = BP_PORT(bp) * FP_SB_MAX_E1x;
7990 	else /* E2 */
7991 		bp->base_fw_ndsb = BP_PORT(bp) * FP_SB_MAX_E2;
7992 
7993 	bp->link_params.chip_id = bp->common.chip_id;
7994 	BNX2X_DEV_INFO("chip ID is 0x%x\n", id);
7995 
7996 	val = (REG_RD(bp, 0x2874) & 0x55);
7997 	if ((bp->common.chip_id & 0x1) ||
7998 	    (CHIP_IS_E1(bp) && val) || (CHIP_IS_E1H(bp) && (val == 0x55))) {
7999 		bp->flags |= ONE_PORT_FLAG;
8000 		BNX2X_DEV_INFO("single port device\n");
8001 	}
8002 
8003 	val = REG_RD(bp, MCP_REG_MCPR_NVM_CFG4);
8004 	bp->common.flash_size = (NVRAM_1MB_SIZE <<
8005 				 (val & MCPR_NVM_CFG4_FLASH_SIZE));
8006 	BNX2X_DEV_INFO("flash_size 0x%x (%d)\n",
8007 		       bp->common.flash_size, bp->common.flash_size);
8008 
8009 	bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
8010 	bp->common.shmem2_base = REG_RD(bp, (BP_PATH(bp) ?
8011 					MISC_REG_GENERIC_CR_1 :
8012 					MISC_REG_GENERIC_CR_0));
8013 	bp->link_params.shmem_base = bp->common.shmem_base;
8014 	bp->link_params.shmem2_base = bp->common.shmem2_base;
8015 	BNX2X_DEV_INFO("shmem offset 0x%x  shmem2 offset 0x%x\n",
8016 		       bp->common.shmem_base, bp->common.shmem2_base);
8017 
8018 	if (!bp->common.shmem_base) {
8019 		BNX2X_DEV_INFO("MCP not active\n");
8020 		bp->flags |= NO_MCP_FLAG;
8021 		return;
8022 	}
8023 
8024 	val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
8025 	if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
8026 		!= (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
8027 		BNX2X_ERR("BAD MCP validity signature\n");
8028 
8029 	bp->common.hw_config = SHMEM_RD(bp, dev_info.shared_hw_config.config);
8030 	BNX2X_DEV_INFO("hw_config 0x%08x\n", bp->common.hw_config);
8031 
8032 	bp->link_params.hw_led_mode = ((bp->common.hw_config &
8033 					SHARED_HW_CFG_LED_MODE_MASK) >>
8034 				       SHARED_HW_CFG_LED_MODE_SHIFT);
8035 
8036 	bp->link_params.feature_config_flags = 0;
8037 	val = SHMEM_RD(bp, dev_info.shared_feature_config.config);
8038 	if (val & SHARED_FEAT_CFG_OVERRIDE_PREEMPHASIS_CFG_ENABLED)
8039 		bp->link_params.feature_config_flags |=
8040 				FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
8041 	else
8042 		bp->link_params.feature_config_flags &=
8043 				~FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED;
8044 
8045 	val = SHMEM_RD(bp, dev_info.bc_rev) >> 8;
8046 	bp->common.bc_ver = val;
8047 	BNX2X_DEV_INFO("bc_ver %X\n", val);
8048 	if (val < BNX2X_BC_VER) {
8049 		/* for now only warn
8050 		 * later we might need to enforce this */
8051 		BNX2X_ERR("This driver needs bc_ver %X but found %X, "
8052 			  "please upgrade BC\n", BNX2X_BC_VER, val);
8053 	}
8054 	bp->link_params.feature_config_flags |=
8055 				(val >= REQ_BC_VER_4_VRFY_FIRST_PHY_OPT_MDL) ?
8056 				FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY : 0;
8057 
8058 	bp->link_params.feature_config_flags |=
8059 		(val >= REQ_BC_VER_4_VRFY_SPECIFIC_PHY_OPT_MDL) ?
8060 		FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY : 0;
8061 
8062 	if (BP_E1HVN(bp) == 0) {
8063 		pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_PMC, &pmc);
8064 		bp->flags |= (pmc & PCI_PM_CAP_PME_D3cold) ? 0 : NO_WOL_FLAG;
8065 	} else {
8066 		/* no WOL capability for E1HVN != 0 */
8067 		bp->flags |= NO_WOL_FLAG;
8068 	}
8069 	BNX2X_DEV_INFO("%sWoL capable\n",
8070 		       (bp->flags & NO_WOL_FLAG) ? "not " : "");
8071 
8072 	val = SHMEM_RD(bp, dev_info.shared_hw_config.part_num);
8073 	val2 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[4]);
8074 	val3 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[8]);
8075 	val4 = SHMEM_RD(bp, dev_info.shared_hw_config.part_num[12]);
8076 
8077 	dev_info(&bp->pdev->dev, "part number %X-%X-%X-%X\n",
8078 		 val, val2, val3, val4);
8079 }
8080 
8081 #define IGU_FID(val)	GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID)
8082 #define IGU_VEC(val)	GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)
8083 
bnx2x_get_igu_cam_info(struct bnx2x * bp)8084 static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
8085 {
8086 	int pfid = BP_FUNC(bp);
8087 	int vn = BP_E1HVN(bp);
8088 	int igu_sb_id;
8089 	u32 val;
8090 	u8 fid;
8091 
8092 	bp->igu_base_sb = 0xff;
8093 	bp->igu_sb_cnt = 0;
8094 	if (CHIP_INT_MODE_IS_BC(bp)) {
8095 		bp->igu_sb_cnt = min_t(u8, FP_SB_MAX_E1x,
8096 				       NUM_IGU_SB_REQUIRED(bp->l2_cid_count));
8097 
8098 		bp->igu_base_sb = (CHIP_MODE_IS_4_PORT(bp) ? pfid : vn) *
8099 			FP_SB_MAX_E1x;
8100 
8101 		bp->igu_dsb_id =  E1HVN_MAX * FP_SB_MAX_E1x +
8102 			(CHIP_MODE_IS_4_PORT(bp) ? pfid : vn);
8103 
8104 		return;
8105 	}
8106 
8107 	/* IGU in normal mode - read CAM */
8108 	for (igu_sb_id = 0; igu_sb_id < IGU_REG_MAPPING_MEMORY_SIZE;
8109 	     igu_sb_id++) {
8110 		val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + igu_sb_id * 4);
8111 		if (!(val & IGU_REG_MAPPING_MEMORY_VALID))
8112 			continue;
8113 		fid = IGU_FID(val);
8114 		if ((fid & IGU_FID_ENCODE_IS_PF)) {
8115 			if ((fid & IGU_FID_PF_NUM_MASK) != pfid)
8116 				continue;
8117 			if (IGU_VEC(val) == 0)
8118 				/* default status block */
8119 				bp->igu_dsb_id = igu_sb_id;
8120 			else {
8121 				if (bp->igu_base_sb == 0xff)
8122 					bp->igu_base_sb = igu_sb_id;
8123 				bp->igu_sb_cnt++;
8124 			}
8125 		}
8126 	}
8127 	bp->igu_sb_cnt = min_t(u8, bp->igu_sb_cnt,
8128 				   NUM_IGU_SB_REQUIRED(bp->l2_cid_count));
8129 	if (bp->igu_sb_cnt == 0)
8130 		BNX2X_ERR("CAM configuration error\n");
8131 }
8132 
bnx2x_link_settings_supported(struct bnx2x * bp,u32 switch_cfg)8133 static void __devinit bnx2x_link_settings_supported(struct bnx2x *bp,
8134 						    u32 switch_cfg)
8135 {
8136 	int cfg_size = 0, idx, port = BP_PORT(bp);
8137 
8138 	/* Aggregation of supported attributes of all external phys */
8139 	bp->port.supported[0] = 0;
8140 	bp->port.supported[1] = 0;
8141 	switch (bp->link_params.num_phys) {
8142 	case 1:
8143 		bp->port.supported[0] = bp->link_params.phy[INT_PHY].supported;
8144 		cfg_size = 1;
8145 		break;
8146 	case 2:
8147 		bp->port.supported[0] = bp->link_params.phy[EXT_PHY1].supported;
8148 		cfg_size = 1;
8149 		break;
8150 	case 3:
8151 		if (bp->link_params.multi_phy_config &
8152 		    PORT_HW_CFG_PHY_SWAPPED_ENABLED) {
8153 			bp->port.supported[1] =
8154 				bp->link_params.phy[EXT_PHY1].supported;
8155 			bp->port.supported[0] =
8156 				bp->link_params.phy[EXT_PHY2].supported;
8157 		} else {
8158 			bp->port.supported[0] =
8159 				bp->link_params.phy[EXT_PHY1].supported;
8160 			bp->port.supported[1] =
8161 				bp->link_params.phy[EXT_PHY2].supported;
8162 		}
8163 		cfg_size = 2;
8164 		break;
8165 	}
8166 
8167 	if (!(bp->port.supported[0] || bp->port.supported[1])) {
8168 		BNX2X_ERR("NVRAM config error. BAD phy config."
8169 			  "PHY1 config 0x%x, PHY2 config 0x%x\n",
8170 			   SHMEM_RD(bp,
8171 			   dev_info.port_hw_config[port].external_phy_config),
8172 			   SHMEM_RD(bp,
8173 			   dev_info.port_hw_config[port].external_phy_config2));
8174 			return;
8175 	}
8176 
8177 	switch (switch_cfg) {
8178 	case SWITCH_CFG_1G:
8179 		bp->port.phy_addr = REG_RD(bp, NIG_REG_SERDES0_CTRL_PHY_ADDR +
8180 					   port*0x10);
8181 		BNX2X_DEV_INFO("phy_addr 0x%x\n", bp->port.phy_addr);
8182 		break;
8183 
8184 	case SWITCH_CFG_10G:
8185 		bp->port.phy_addr = REG_RD(bp, NIG_REG_XGXS0_CTRL_PHY_ADDR +
8186 					   port*0x18);
8187 		BNX2X_DEV_INFO("phy_addr 0x%x\n", bp->port.phy_addr);
8188 		break;
8189 
8190 	default:
8191 		BNX2X_ERR("BAD switch_cfg link_config 0x%x\n",
8192 			  bp->port.link_config[0]);
8193 		return;
8194 	}
8195 	/* mask what we support according to speed_cap_mask per configuration */
8196 	for (idx = 0; idx < cfg_size; idx++) {
8197 		if (!(bp->link_params.speed_cap_mask[idx] &
8198 				PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF))
8199 			bp->port.supported[idx] &= ~SUPPORTED_10baseT_Half;
8200 
8201 		if (!(bp->link_params.speed_cap_mask[idx] &
8202 				PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL))
8203 			bp->port.supported[idx] &= ~SUPPORTED_10baseT_Full;
8204 
8205 		if (!(bp->link_params.speed_cap_mask[idx] &
8206 				PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))
8207 			bp->port.supported[idx] &= ~SUPPORTED_100baseT_Half;
8208 
8209 		if (!(bp->link_params.speed_cap_mask[idx] &
8210 				PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL))
8211 			bp->port.supported[idx] &= ~SUPPORTED_100baseT_Full;
8212 
8213 		if (!(bp->link_params.speed_cap_mask[idx] &
8214 					PORT_HW_CFG_SPEED_CAPABILITY_D0_1G))
8215 			bp->port.supported[idx] &= ~(SUPPORTED_1000baseT_Half |
8216 						     SUPPORTED_1000baseT_Full);
8217 
8218 		if (!(bp->link_params.speed_cap_mask[idx] &
8219 					PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
8220 			bp->port.supported[idx] &= ~SUPPORTED_2500baseX_Full;
8221 
8222 		if (!(bp->link_params.speed_cap_mask[idx] &
8223 					PORT_HW_CFG_SPEED_CAPABILITY_D0_10G))
8224 			bp->port.supported[idx] &= ~SUPPORTED_10000baseT_Full;
8225 
8226 	}
8227 
8228 	BNX2X_DEV_INFO("supported 0x%x 0x%x\n", bp->port.supported[0],
8229 		       bp->port.supported[1]);
8230 }
8231 
bnx2x_link_settings_requested(struct bnx2x * bp)8232 static void __devinit bnx2x_link_settings_requested(struct bnx2x *bp)
8233 {
8234 	u32 link_config, idx, cfg_size = 0;
8235 	bp->port.advertising[0] = 0;
8236 	bp->port.advertising[1] = 0;
8237 	switch (bp->link_params.num_phys) {
8238 	case 1:
8239 	case 2:
8240 		cfg_size = 1;
8241 		break;
8242 	case 3:
8243 		cfg_size = 2;
8244 		break;
8245 	}
8246 	for (idx = 0; idx < cfg_size; idx++) {
8247 		bp->link_params.req_duplex[idx] = DUPLEX_FULL;
8248 		link_config = bp->port.link_config[idx];
8249 		switch (link_config & PORT_FEATURE_LINK_SPEED_MASK) {
8250 		case PORT_FEATURE_LINK_SPEED_AUTO:
8251 			if (bp->port.supported[idx] & SUPPORTED_Autoneg) {
8252 				bp->link_params.req_line_speed[idx] =
8253 					SPEED_AUTO_NEG;
8254 				bp->port.advertising[idx] |=
8255 					bp->port.supported[idx];
8256 			} else {
8257 				/* force 10G, no AN */
8258 				bp->link_params.req_line_speed[idx] =
8259 					SPEED_10000;
8260 				bp->port.advertising[idx] |=
8261 					(ADVERTISED_10000baseT_Full |
8262 					 ADVERTISED_FIBRE);
8263 				continue;
8264 			}
8265 			break;
8266 
8267 		case PORT_FEATURE_LINK_SPEED_10M_FULL:
8268 			if (bp->port.supported[idx] & SUPPORTED_10baseT_Full) {
8269 				bp->link_params.req_line_speed[idx] =
8270 					SPEED_10;
8271 				bp->port.advertising[idx] |=
8272 					(ADVERTISED_10baseT_Full |
8273 					 ADVERTISED_TP);
8274 			} else {
8275 				BNX2X_ERROR("NVRAM config error. "
8276 					    "Invalid link_config 0x%x"
8277 					    "  speed_cap_mask 0x%x\n",
8278 					    link_config,
8279 				    bp->link_params.speed_cap_mask[idx]);
8280 				return;
8281 			}
8282 			break;
8283 
8284 		case PORT_FEATURE_LINK_SPEED_10M_HALF:
8285 			if (bp->port.supported[idx] & SUPPORTED_10baseT_Half) {
8286 				bp->link_params.req_line_speed[idx] =
8287 					SPEED_10;
8288 				bp->link_params.req_duplex[idx] =
8289 					DUPLEX_HALF;
8290 				bp->port.advertising[idx] |=
8291 					(ADVERTISED_10baseT_Half |
8292 					 ADVERTISED_TP);
8293 			} else {
8294 				BNX2X_ERROR("NVRAM config error. "
8295 					    "Invalid link_config 0x%x"
8296 					    "  speed_cap_mask 0x%x\n",
8297 					    link_config,
8298 					  bp->link_params.speed_cap_mask[idx]);
8299 				return;
8300 			}
8301 			break;
8302 
8303 		case PORT_FEATURE_LINK_SPEED_100M_FULL:
8304 			if (bp->port.supported[idx] &
8305 			    SUPPORTED_100baseT_Full) {
8306 				bp->link_params.req_line_speed[idx] =
8307 					SPEED_100;
8308 				bp->port.advertising[idx] |=
8309 					(ADVERTISED_100baseT_Full |
8310 					 ADVERTISED_TP);
8311 			} else {
8312 				BNX2X_ERROR("NVRAM config error. "
8313 					    "Invalid link_config 0x%x"
8314 					    "  speed_cap_mask 0x%x\n",
8315 					    link_config,
8316 					  bp->link_params.speed_cap_mask[idx]);
8317 				return;
8318 			}
8319 			break;
8320 
8321 		case PORT_FEATURE_LINK_SPEED_100M_HALF:
8322 			if (bp->port.supported[idx] &
8323 			    SUPPORTED_100baseT_Half) {
8324 				bp->link_params.req_line_speed[idx] =
8325 								SPEED_100;
8326 				bp->link_params.req_duplex[idx] =
8327 								DUPLEX_HALF;
8328 				bp->port.advertising[idx] |=
8329 					(ADVERTISED_100baseT_Half |
8330 					 ADVERTISED_TP);
8331 			} else {
8332 				BNX2X_ERROR("NVRAM config error. "
8333 				    "Invalid link_config 0x%x"
8334 				    "  speed_cap_mask 0x%x\n",
8335 				    link_config,
8336 				    bp->link_params.speed_cap_mask[idx]);
8337 				return;
8338 			}
8339 			break;
8340 
8341 		case PORT_FEATURE_LINK_SPEED_1G:
8342 			if (bp->port.supported[idx] &
8343 			    SUPPORTED_1000baseT_Full) {
8344 				bp->link_params.req_line_speed[idx] =
8345 					SPEED_1000;
8346 				bp->port.advertising[idx] |=
8347 					(ADVERTISED_1000baseT_Full |
8348 					 ADVERTISED_TP);
8349 			} else {
8350 				BNX2X_ERROR("NVRAM config error. "
8351 				    "Invalid link_config 0x%x"
8352 				    "  speed_cap_mask 0x%x\n",
8353 				    link_config,
8354 				    bp->link_params.speed_cap_mask[idx]);
8355 				return;
8356 			}
8357 			break;
8358 
8359 		case PORT_FEATURE_LINK_SPEED_2_5G:
8360 			if (bp->port.supported[idx] &
8361 			    SUPPORTED_2500baseX_Full) {
8362 				bp->link_params.req_line_speed[idx] =
8363 					SPEED_2500;
8364 				bp->port.advertising[idx] |=
8365 					(ADVERTISED_2500baseX_Full |
8366 						ADVERTISED_TP);
8367 			} else {
8368 				BNX2X_ERROR("NVRAM config error. "
8369 				    "Invalid link_config 0x%x"
8370 				    "  speed_cap_mask 0x%x\n",
8371 				    link_config,
8372 				    bp->link_params.speed_cap_mask[idx]);
8373 				return;
8374 			}
8375 			break;
8376 
8377 		case PORT_FEATURE_LINK_SPEED_10G_CX4:
8378 		case PORT_FEATURE_LINK_SPEED_10G_KX4:
8379 		case PORT_FEATURE_LINK_SPEED_10G_KR:
8380 			if (bp->port.supported[idx] &
8381 			    SUPPORTED_10000baseT_Full) {
8382 				bp->link_params.req_line_speed[idx] =
8383 					SPEED_10000;
8384 				bp->port.advertising[idx] |=
8385 					(ADVERTISED_10000baseT_Full |
8386 						ADVERTISED_FIBRE);
8387 			} else {
8388 				BNX2X_ERROR("NVRAM config error. "
8389 				    "Invalid link_config 0x%x"
8390 				    "  speed_cap_mask 0x%x\n",
8391 				    link_config,
8392 				    bp->link_params.speed_cap_mask[idx]);
8393 				return;
8394 			}
8395 			break;
8396 
8397 		default:
8398 			BNX2X_ERROR("NVRAM config error. "
8399 				    "BAD link speed link_config 0x%x\n",
8400 					  link_config);
8401 				bp->link_params.req_line_speed[idx] =
8402 							SPEED_AUTO_NEG;
8403 				bp->port.advertising[idx] =
8404 						bp->port.supported[idx];
8405 			break;
8406 		}
8407 
8408 		bp->link_params.req_flow_ctrl[idx] = (link_config &
8409 					 PORT_FEATURE_FLOW_CONTROL_MASK);
8410 		if ((bp->link_params.req_flow_ctrl[idx] ==
8411 		     BNX2X_FLOW_CTRL_AUTO) &&
8412 		    !(bp->port.supported[idx] & SUPPORTED_Autoneg)) {
8413 			bp->link_params.req_flow_ctrl[idx] =
8414 				BNX2X_FLOW_CTRL_NONE;
8415 		}
8416 
8417 		BNX2X_DEV_INFO("req_line_speed %d  req_duplex %d req_flow_ctrl"
8418 			       " 0x%x advertising 0x%x\n",
8419 			       bp->link_params.req_line_speed[idx],
8420 			       bp->link_params.req_duplex[idx],
8421 			       bp->link_params.req_flow_ctrl[idx],
8422 			       bp->port.advertising[idx]);
8423 	}
8424 }
8425 
bnx2x_set_mac_buf(u8 * mac_buf,u32 mac_lo,u16 mac_hi)8426 static void __devinit bnx2x_set_mac_buf(u8 *mac_buf, u32 mac_lo, u16 mac_hi)
8427 {
8428 	mac_hi = cpu_to_be16(mac_hi);
8429 	mac_lo = cpu_to_be32(mac_lo);
8430 	memcpy(mac_buf, &mac_hi, sizeof(mac_hi));
8431 	memcpy(mac_buf + sizeof(mac_hi), &mac_lo, sizeof(mac_lo));
8432 }
8433 
bnx2x_get_port_hwinfo(struct bnx2x * bp)8434 static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
8435 {
8436 	int port = BP_PORT(bp);
8437 	u32 config;
8438 	u32 ext_phy_type, ext_phy_config;
8439 
8440 	bp->link_params.bp = bp;
8441 	bp->link_params.port = port;
8442 
8443 	bp->link_params.lane_config =
8444 		SHMEM_RD(bp, dev_info.port_hw_config[port].lane_config);
8445 
8446 	bp->link_params.speed_cap_mask[0] =
8447 		SHMEM_RD(bp,
8448 			 dev_info.port_hw_config[port].speed_capability_mask);
8449 	bp->link_params.speed_cap_mask[1] =
8450 		SHMEM_RD(bp,
8451 			 dev_info.port_hw_config[port].speed_capability_mask2);
8452 	bp->port.link_config[0] =
8453 		SHMEM_RD(bp, dev_info.port_feature_config[port].link_config);
8454 
8455 	bp->port.link_config[1] =
8456 		SHMEM_RD(bp, dev_info.port_feature_config[port].link_config2);
8457 
8458 	bp->link_params.multi_phy_config =
8459 		SHMEM_RD(bp, dev_info.port_hw_config[port].multi_phy_config);
8460 	/* If the device is capable of WoL, set the default state according
8461 	 * to the HW
8462 	 */
8463 	config = SHMEM_RD(bp, dev_info.port_feature_config[port].config);
8464 	bp->wol = (!(bp->flags & NO_WOL_FLAG) &&
8465 		   (config & PORT_FEATURE_WOL_ENABLED));
8466 
8467 	BNX2X_DEV_INFO("lane_config 0x%08x  "
8468 		       "speed_cap_mask0 0x%08x  link_config0 0x%08x\n",
8469 		       bp->link_params.lane_config,
8470 		       bp->link_params.speed_cap_mask[0],
8471 		       bp->port.link_config[0]);
8472 
8473 	bp->link_params.switch_cfg = (bp->port.link_config[0] &
8474 				      PORT_FEATURE_CONNECTED_SWITCH_MASK);
8475 	bnx2x_phy_probe(&bp->link_params);
8476 	bnx2x_link_settings_supported(bp, bp->link_params.switch_cfg);
8477 
8478 	bnx2x_link_settings_requested(bp);
8479 
8480 	/*
8481 	 * If connected directly, work with the internal PHY, otherwise, work
8482 	 * with the external PHY
8483 	 */
8484 	ext_phy_config =
8485 		SHMEM_RD(bp,
8486 			 dev_info.port_hw_config[port].external_phy_config);
8487 	ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
8488 	if (ext_phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
8489 		bp->mdio.prtad = bp->port.phy_addr;
8490 
8491 	else if ((ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) &&
8492 		 (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
8493 		bp->mdio.prtad =
8494 			XGXS_EXT_PHY_ADDR(ext_phy_config);
8495 
8496 	/*
8497 	 * Check if hw lock is required to access MDC/MDIO bus to the PHY(s)
8498 	 * In MF mode, it is set to cover self test cases
8499 	 */
8500 	if (IS_MF(bp))
8501 		bp->port.need_hw_lock = 1;
8502 	else
8503 		bp->port.need_hw_lock = bnx2x_hw_lock_required(bp,
8504 							bp->common.shmem_base,
8505 							bp->common.shmem2_base);
8506 }
8507 
8508 #ifdef BCM_CNIC
bnx2x_get_cnic_info(struct bnx2x * bp)8509 static void __devinit bnx2x_get_cnic_info(struct bnx2x *bp)
8510 {
8511 	u32 max_iscsi_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
8512 				drv_lic_key[BP_PORT(bp)].max_iscsi_conn);
8513 	u32 max_fcoe_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
8514 				drv_lic_key[BP_PORT(bp)].max_fcoe_conn);
8515 
8516 	/* Get the number of maximum allowed iSCSI and FCoE connections */
8517 	bp->cnic_eth_dev.max_iscsi_conn =
8518 		(max_iscsi_conn & BNX2X_MAX_ISCSI_INIT_CONN_MASK) >>
8519 		BNX2X_MAX_ISCSI_INIT_CONN_SHIFT;
8520 
8521 	bp->cnic_eth_dev.max_fcoe_conn =
8522 		(max_fcoe_conn & BNX2X_MAX_FCOE_INIT_CONN_MASK) >>
8523 		BNX2X_MAX_FCOE_INIT_CONN_SHIFT;
8524 
8525 	BNX2X_DEV_INFO("max_iscsi_conn 0x%x max_fcoe_conn 0x%x\n",
8526 		       bp->cnic_eth_dev.max_iscsi_conn,
8527 		       bp->cnic_eth_dev.max_fcoe_conn);
8528 
8529 	/* If mamimum allowed number of connections is zero -
8530 	 * disable the feature.
8531 	 */
8532 	if (!bp->cnic_eth_dev.max_iscsi_conn)
8533 		bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
8534 
8535 	if (!bp->cnic_eth_dev.max_fcoe_conn)
8536 		bp->flags |= NO_FCOE_FLAG;
8537 }
8538 #endif
8539 
bnx2x_get_mac_hwinfo(struct bnx2x * bp)8540 static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
8541 {
8542 	u32 val, val2;
8543 	int func = BP_ABS_FUNC(bp);
8544 	int port = BP_PORT(bp);
8545 #ifdef BCM_CNIC
8546 	u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
8547 	u8 *fip_mac = bp->fip_mac;
8548 #endif
8549 
8550 	if (BP_NOMCP(bp)) {
8551 		BNX2X_ERROR("warning: random MAC workaround active\n");
8552 		random_ether_addr(bp->dev->dev_addr);
8553 	} else if (IS_MF(bp)) {
8554 		val2 = MF_CFG_RD(bp, func_mf_config[func].mac_upper);
8555 		val = MF_CFG_RD(bp, func_mf_config[func].mac_lower);
8556 		if ((val2 != FUNC_MF_CFG_UPPERMAC_DEFAULT) &&
8557 		    (val != FUNC_MF_CFG_LOWERMAC_DEFAULT))
8558 			bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
8559 
8560 #ifdef BCM_CNIC
8561 		/* iSCSI and FCoE NPAR MACs: if there is no either iSCSI or
8562 		 * FCoE MAC then the appropriate feature should be disabled.
8563 		 */
8564 		if (IS_MF_SI(bp)) {
8565 			u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
8566 			if (cfg & MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD) {
8567 				val2 = MF_CFG_RD(bp, func_ext_config[func].
8568 						     iscsi_mac_addr_upper);
8569 				val = MF_CFG_RD(bp, func_ext_config[func].
8570 						    iscsi_mac_addr_lower);
8571 				BNX2X_DEV_INFO("Read iSCSI MAC: "
8572 					       "0x%x:0x%04x\n", val2, val);
8573 				bnx2x_set_mac_buf(iscsi_mac, val, val2);
8574 
8575 				/* Disable iSCSI OOO if MAC configuration is
8576 				 * invalid.
8577 				 */
8578 				if (!is_valid_ether_addr(iscsi_mac)) {
8579 					bp->flags |= NO_ISCSI_OOO_FLAG |
8580 						     NO_ISCSI_FLAG;
8581 					memset(iscsi_mac, 0, ETH_ALEN);
8582 				}
8583 			} else
8584 				bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
8585 
8586 			if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
8587 				val2 = MF_CFG_RD(bp, func_ext_config[func].
8588 						     fcoe_mac_addr_upper);
8589 				val = MF_CFG_RD(bp, func_ext_config[func].
8590 						    fcoe_mac_addr_lower);
8591 				BNX2X_DEV_INFO("Read FCoE MAC to "
8592 					       "0x%x:0x%04x\n", val2, val);
8593 				bnx2x_set_mac_buf(fip_mac, val, val2);
8594 
8595 				/* Disable FCoE if MAC configuration is
8596 				 * invalid.
8597 				 */
8598 				if (!is_valid_ether_addr(fip_mac)) {
8599 					bp->flags |= NO_FCOE_FLAG;
8600 					memset(bp->fip_mac, 0, ETH_ALEN);
8601 				}
8602 			} else
8603 				bp->flags |= NO_FCOE_FLAG;
8604 		}
8605 #endif
8606 	} else {
8607 		/* in SF read MACs from port configuration */
8608 		val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper);
8609 		val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower);
8610 		bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
8611 
8612 #ifdef BCM_CNIC
8613 		val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].
8614 				    iscsi_mac_upper);
8615 		val = SHMEM_RD(bp, dev_info.port_hw_config[port].
8616 				   iscsi_mac_lower);
8617 		bnx2x_set_mac_buf(iscsi_mac, val, val2);
8618 #endif
8619 	}
8620 
8621 	memcpy(bp->link_params.mac_addr, bp->dev->dev_addr, ETH_ALEN);
8622 	memcpy(bp->dev->perm_addr, bp->dev->dev_addr, ETH_ALEN);
8623 
8624 #ifdef BCM_CNIC
8625 	/* Set the FCoE MAC in modes other then MF_SI */
8626 	if (!CHIP_IS_E1x(bp)) {
8627 		if (IS_MF_SD(bp))
8628 			memcpy(fip_mac, bp->dev->dev_addr, ETH_ALEN);
8629 		else if (!IS_MF(bp))
8630 			memcpy(fip_mac, iscsi_mac, ETH_ALEN);
8631 	}
8632 #endif
8633 }
8634 
bnx2x_get_hwinfo(struct bnx2x * bp)8635 static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
8636 {
8637 	int /*abs*/func = BP_ABS_FUNC(bp);
8638 	int vn, port;
8639 	u32 val = 0;
8640 	int rc = 0;
8641 
8642 	bnx2x_get_common_hwinfo(bp);
8643 
8644 	if (CHIP_IS_E1x(bp)) {
8645 		bp->common.int_block = INT_BLOCK_HC;
8646 
8647 		bp->igu_dsb_id = DEF_SB_IGU_ID;
8648 		bp->igu_base_sb = 0;
8649 		bp->igu_sb_cnt = min_t(u8, FP_SB_MAX_E1x,
8650 				       NUM_IGU_SB_REQUIRED(bp->l2_cid_count));
8651 	} else {
8652 		bp->common.int_block = INT_BLOCK_IGU;
8653 		val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
8654 		if (val & IGU_BLOCK_CONFIGURATION_REG_BACKWARD_COMP_EN) {
8655 			DP(NETIF_MSG_PROBE, "IGU Backward Compatible Mode\n");
8656 			bp->common.int_block |= INT_BLOCK_MODE_BW_COMP;
8657 		} else
8658 			DP(NETIF_MSG_PROBE, "IGU Normal Mode\n");
8659 
8660 		bnx2x_get_igu_cam_info(bp);
8661 
8662 	}
8663 	DP(NETIF_MSG_PROBE, "igu_dsb_id %d  igu_base_sb %d  igu_sb_cnt %d\n",
8664 			     bp->igu_dsb_id, bp->igu_base_sb, bp->igu_sb_cnt);
8665 
8666 	/*
8667 	 * Initialize MF configuration
8668 	 */
8669 
8670 	bp->mf_ov = 0;
8671 	bp->mf_mode = 0;
8672 	vn = BP_E1HVN(bp);
8673 	port = BP_PORT(bp);
8674 
8675 	if (!CHIP_IS_E1(bp) && !BP_NOMCP(bp)) {
8676 		DP(NETIF_MSG_PROBE,
8677 			    "shmem2base 0x%x, size %d, mfcfg offset %d\n",
8678 			    bp->common.shmem2_base, SHMEM2_RD(bp, size),
8679 			    (u32)offsetof(struct shmem2_region, mf_cfg_addr));
8680 		if (SHMEM2_HAS(bp, mf_cfg_addr))
8681 			bp->common.mf_cfg_base = SHMEM2_RD(bp, mf_cfg_addr);
8682 		else
8683 			bp->common.mf_cfg_base = bp->common.shmem_base +
8684 				offsetof(struct shmem_region, func_mb) +
8685 				E1H_FUNC_MAX * sizeof(struct drv_func_mb);
8686 		/*
8687 		 * get mf configuration:
8688 		 * 1. existence of MF configuration
8689 		 * 2. MAC address must be legal (check only upper bytes)
8690 		 *    for  Switch-Independent mode;
8691 		 *    OVLAN must be legal for Switch-Dependent mode
8692 		 * 3. SF_MODE configures specific MF mode
8693 		 */
8694 		if (bp->common.mf_cfg_base != SHMEM_MF_CFG_ADDR_NONE) {
8695 			/* get mf configuration */
8696 			val = SHMEM_RD(bp,
8697 				       dev_info.shared_feature_config.config);
8698 			val &= SHARED_FEAT_CFG_FORCE_SF_MODE_MASK;
8699 
8700 			switch (val) {
8701 			case SHARED_FEAT_CFG_FORCE_SF_MODE_SWITCH_INDEPT:
8702 				val = MF_CFG_RD(bp, func_mf_config[func].
8703 						mac_upper);
8704 				/* check for legal mac (upper bytes)*/
8705 				if (val != 0xffff) {
8706 					bp->mf_mode = MULTI_FUNCTION_SI;
8707 					bp->mf_config[vn] = MF_CFG_RD(bp,
8708 						   func_mf_config[func].config);
8709 				} else
8710 					DP(NETIF_MSG_PROBE, "illegal MAC "
8711 							    "address for SI\n");
8712 				break;
8713 			case SHARED_FEAT_CFG_FORCE_SF_MODE_MF_ALLOWED:
8714 				/* get OV configuration */
8715 				val = MF_CFG_RD(bp,
8716 					func_mf_config[FUNC_0].e1hov_tag);
8717 				val &= FUNC_MF_CFG_E1HOV_TAG_MASK;
8718 
8719 				if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
8720 					bp->mf_mode = MULTI_FUNCTION_SD;
8721 					bp->mf_config[vn] = MF_CFG_RD(bp,
8722 						func_mf_config[func].config);
8723 				} else
8724 					DP(NETIF_MSG_PROBE, "illegal OV for "
8725 							    "SD\n");
8726 				break;
8727 			default:
8728 				/* Unknown configuration: reset mf_config */
8729 				bp->mf_config[vn] = 0;
8730 				DP(NETIF_MSG_PROBE, "Unknown MF mode 0x%x\n",
8731 				   val);
8732 			}
8733 		}
8734 
8735 		BNX2X_DEV_INFO("%s function mode\n",
8736 			       IS_MF(bp) ? "multi" : "single");
8737 
8738 		switch (bp->mf_mode) {
8739 		case MULTI_FUNCTION_SD:
8740 			val = MF_CFG_RD(bp, func_mf_config[func].e1hov_tag) &
8741 			      FUNC_MF_CFG_E1HOV_TAG_MASK;
8742 			if (val != FUNC_MF_CFG_E1HOV_TAG_DEFAULT) {
8743 				bp->mf_ov = val;
8744 				BNX2X_DEV_INFO("MF OV for func %d is %d"
8745 					       " (0x%04x)\n", func,
8746 					       bp->mf_ov, bp->mf_ov);
8747 			} else {
8748 				BNX2X_ERR("No valid MF OV for func %d,"
8749 					  "  aborting\n", func);
8750 				rc = -EPERM;
8751 			}
8752 			break;
8753 		case MULTI_FUNCTION_SI:
8754 			BNX2X_DEV_INFO("func %d is in MF "
8755 				       "switch-independent mode\n", func);
8756 			break;
8757 		default:
8758 			if (vn) {
8759 				BNX2X_ERR("VN %d in single function mode,"
8760 					  "  aborting\n", vn);
8761 				rc = -EPERM;
8762 			}
8763 			break;
8764 		}
8765 
8766 	}
8767 
8768 	/* adjust igu_sb_cnt to MF for E1x */
8769 	if (CHIP_IS_E1x(bp) && IS_MF(bp))
8770 		bp->igu_sb_cnt /= E1HVN_MAX;
8771 
8772 	/*
8773 	 * adjust E2 sb count: to be removed when FW will support
8774 	 * more then 16 L2 clients
8775 	 */
8776 #define MAX_L2_CLIENTS				16
8777 	if (CHIP_IS_E2(bp))
8778 		bp->igu_sb_cnt = min_t(u8, bp->igu_sb_cnt,
8779 				       MAX_L2_CLIENTS / (IS_MF(bp) ? 4 : 1));
8780 
8781 	if (!BP_NOMCP(bp)) {
8782 		bnx2x_get_port_hwinfo(bp);
8783 
8784 		bp->fw_seq =
8785 			(SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
8786 			 DRV_MSG_SEQ_NUMBER_MASK);
8787 		BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq);
8788 	}
8789 
8790 	/* Get MAC addresses */
8791 	bnx2x_get_mac_hwinfo(bp);
8792 
8793 #ifdef BCM_CNIC
8794 	bnx2x_get_cnic_info(bp);
8795 #endif
8796 
8797 	return rc;
8798 }
8799 
bnx2x_read_fwinfo(struct bnx2x * bp)8800 static void __devinit bnx2x_read_fwinfo(struct bnx2x *bp)
8801 {
8802 	int cnt, i, block_end, rodi;
8803 	char vpd_data[BNX2X_VPD_LEN+1];
8804 	char str_id_reg[VENDOR_ID_LEN+1];
8805 	char str_id_cap[VENDOR_ID_LEN+1];
8806 	u8 len;
8807 
8808 	cnt = pci_read_vpd(bp->pdev, 0, BNX2X_VPD_LEN, vpd_data);
8809 	memset(bp->fw_ver, 0, sizeof(bp->fw_ver));
8810 
8811 	if (cnt < BNX2X_VPD_LEN)
8812 		goto out_not_found;
8813 
8814 	i = pci_vpd_find_tag(vpd_data, 0, BNX2X_VPD_LEN,
8815 			     PCI_VPD_LRDT_RO_DATA);
8816 	if (i < 0)
8817 		goto out_not_found;
8818 
8819 
8820 	block_end = i + PCI_VPD_LRDT_TAG_SIZE +
8821 		    pci_vpd_lrdt_size(&vpd_data[i]);
8822 
8823 	i += PCI_VPD_LRDT_TAG_SIZE;
8824 
8825 	if (block_end > BNX2X_VPD_LEN)
8826 		goto out_not_found;
8827 
8828 	rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
8829 				   PCI_VPD_RO_KEYWORD_MFR_ID);
8830 	if (rodi < 0)
8831 		goto out_not_found;
8832 
8833 	len = pci_vpd_info_field_size(&vpd_data[rodi]);
8834 
8835 	if (len != VENDOR_ID_LEN)
8836 		goto out_not_found;
8837 
8838 	rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
8839 
8840 	/* vendor specific info */
8841 	snprintf(str_id_reg, VENDOR_ID_LEN + 1, "%04x", PCI_VENDOR_ID_DELL);
8842 	snprintf(str_id_cap, VENDOR_ID_LEN + 1, "%04X", PCI_VENDOR_ID_DELL);
8843 	if (!strncmp(str_id_reg, &vpd_data[rodi], VENDOR_ID_LEN) ||
8844 	    !strncmp(str_id_cap, &vpd_data[rodi], VENDOR_ID_LEN)) {
8845 
8846 		rodi = pci_vpd_find_info_keyword(vpd_data, i, block_end,
8847 						PCI_VPD_RO_KEYWORD_VENDOR0);
8848 		if (rodi >= 0) {
8849 			len = pci_vpd_info_field_size(&vpd_data[rodi]);
8850 
8851 			rodi += PCI_VPD_INFO_FLD_HDR_SIZE;
8852 
8853 			if (len < 32 && (len + rodi) <= BNX2X_VPD_LEN) {
8854 				memcpy(bp->fw_ver, &vpd_data[rodi], len);
8855 				bp->fw_ver[len] = ' ';
8856 			}
8857 		}
8858 		return;
8859 	}
8860 out_not_found:
8861 	return;
8862 }
8863 
bnx2x_init_bp(struct bnx2x * bp)8864 static int __devinit bnx2x_init_bp(struct bnx2x *bp)
8865 {
8866 	int func;
8867 	int timer_interval;
8868 	int rc;
8869 
8870 	/* Disable interrupt handling until HW is initialized */
8871 	atomic_set(&bp->intr_sem, 1);
8872 	smp_wmb(); /* Ensure that bp->intr_sem update is SMP-safe */
8873 
8874 	mutex_init(&bp->port.phy_mutex);
8875 	mutex_init(&bp->fw_mb_mutex);
8876 	spin_lock_init(&bp->stats_lock);
8877 #ifdef BCM_CNIC
8878 	mutex_init(&bp->cnic_mutex);
8879 #endif
8880 
8881 	INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
8882 	INIT_DELAYED_WORK(&bp->reset_task, bnx2x_reset_task);
8883 
8884 	rc = bnx2x_get_hwinfo(bp);
8885 
8886 	if (!rc)
8887 		rc = bnx2x_alloc_mem_bp(bp);
8888 
8889 	bnx2x_read_fwinfo(bp);
8890 
8891 	func = BP_FUNC(bp);
8892 
8893 	/* need to reset chip if undi was active */
8894 	if (!BP_NOMCP(bp))
8895 		bnx2x_undi_unload(bp);
8896 
8897 	if (CHIP_REV_IS_FPGA(bp))
8898 		dev_err(&bp->pdev->dev, "FPGA detected\n");
8899 
8900 	if (BP_NOMCP(bp) && (func == 0))
8901 		dev_err(&bp->pdev->dev, "MCP disabled, "
8902 					"must load devices in order!\n");
8903 
8904 	bp->multi_mode = multi_mode;
8905 	bp->int_mode = int_mode;
8906 
8907 	bp->dev->features |= NETIF_F_GRO;
8908 
8909 	/* Set TPA flags */
8910 	if (disable_tpa) {
8911 		bp->flags &= ~TPA_ENABLE_FLAG;
8912 		bp->dev->features &= ~NETIF_F_LRO;
8913 	} else {
8914 		bp->flags |= TPA_ENABLE_FLAG;
8915 		bp->dev->features |= NETIF_F_LRO;
8916 	}
8917 	bp->disable_tpa = disable_tpa;
8918 
8919 	if (CHIP_IS_E1(bp))
8920 		bp->dropless_fc = 0;
8921 	else
8922 		bp->dropless_fc = dropless_fc;
8923 
8924 	bp->mrrs = mrrs;
8925 
8926 	bp->tx_ring_size = MAX_TX_AVAIL;
8927 
8928 	bp->rx_csum = 1;
8929 
8930 	/* make sure that the numbers are in the right granularity */
8931 	bp->tx_ticks = (50 / BNX2X_BTR) * BNX2X_BTR;
8932 	bp->rx_ticks = (25 / BNX2X_BTR) * BNX2X_BTR;
8933 
8934 	timer_interval = (CHIP_REV_IS_SLOW(bp) ? 5*HZ : HZ);
8935 	bp->current_interval = (poll ? poll : timer_interval);
8936 
8937 	init_timer(&bp->timer);
8938 	bp->timer.expires = jiffies + bp->current_interval;
8939 	bp->timer.data = (unsigned long) bp;
8940 	bp->timer.function = bnx2x_timer;
8941 
8942 	bnx2x_dcbx_set_state(bp, true, BNX2X_DCBX_ENABLED_ON_NEG_ON);
8943 	bnx2x_dcbx_init_params(bp);
8944 
8945 	return rc;
8946 }
8947 
8948 
8949 /****************************************************************************
8950 * General service functions
8951 ****************************************************************************/
8952 
8953 /* called with rtnl_lock */
bnx2x_open(struct net_device * dev)8954 static int bnx2x_open(struct net_device *dev)
8955 {
8956 	struct bnx2x *bp = netdev_priv(dev);
8957 
8958 	netif_carrier_off(dev);
8959 
8960 	bnx2x_set_power_state(bp, PCI_D0);
8961 
8962 	if (!bnx2x_reset_is_done(bp)) {
8963 		do {
8964 			/* Reset MCP mail box sequence if there is on going
8965 			 * recovery
8966 			 */
8967 			bp->fw_seq = 0;
8968 
8969 			/* If it's the first function to load and reset done
8970 			 * is still not cleared it may mean that. We don't
8971 			 * check the attention state here because it may have
8972 			 * already been cleared by a "common" reset but we
8973 			 * shell proceed with "process kill" anyway.
8974 			 */
8975 			if ((bnx2x_get_load_cnt(bp) == 0) &&
8976 				bnx2x_trylock_hw_lock(bp,
8977 				HW_LOCK_RESOURCE_RESERVED_08) &&
8978 				(!bnx2x_leader_reset(bp))) {
8979 				DP(NETIF_MSG_HW, "Recovered in open\n");
8980 				break;
8981 			}
8982 
8983 			bnx2x_set_power_state(bp, PCI_D3hot);
8984 
8985 			printk(KERN_ERR"%s: Recovery flow hasn't been properly"
8986 			" completed yet. Try again later. If u still see this"
8987 			" message after a few retries then power cycle is"
8988 			" required.\n", bp->dev->name);
8989 
8990 			return -EAGAIN;
8991 		} while (0);
8992 	}
8993 
8994 	bp->recovery_state = BNX2X_RECOVERY_DONE;
8995 
8996 	return bnx2x_nic_load(bp, LOAD_OPEN);
8997 }
8998 
8999 /* called with rtnl_lock */
bnx2x_close(struct net_device * dev)9000 static int bnx2x_close(struct net_device *dev)
9001 {
9002 	struct bnx2x *bp = netdev_priv(dev);
9003 
9004 	/* Unload the driver, release IRQs */
9005 	bnx2x_nic_unload(bp, UNLOAD_CLOSE);
9006 	bnx2x_set_power_state(bp, PCI_D3hot);
9007 
9008 	return 0;
9009 }
9010 
9011 #define E1_MAX_UC_LIST	29
9012 #define E1H_MAX_UC_LIST	30
9013 #define E2_MAX_UC_LIST	14
bnx2x_max_uc_list(struct bnx2x * bp)9014 static inline u8 bnx2x_max_uc_list(struct bnx2x *bp)
9015 {
9016 	if (CHIP_IS_E1(bp))
9017 		return E1_MAX_UC_LIST;
9018 	else if (CHIP_IS_E1H(bp))
9019 		return E1H_MAX_UC_LIST;
9020 	else
9021 		return E2_MAX_UC_LIST;
9022 }
9023 
9024 
bnx2x_uc_list_cam_offset(struct bnx2x * bp)9025 static inline u8 bnx2x_uc_list_cam_offset(struct bnx2x *bp)
9026 {
9027 	if (CHIP_IS_E1(bp))
9028 		/* CAM Entries for Port0:
9029 		 *      0 - prim ETH MAC
9030 		 *      1 - BCAST MAC
9031 		 *      2 - iSCSI L2 ring ETH MAC
9032 		 *      3-31 - UC MACs
9033 		 *
9034 		 * Port1 entries are allocated the same way starting from
9035 		 * entry 32.
9036 		 */
9037 		return 3 + 32 * BP_PORT(bp);
9038 	else if (CHIP_IS_E1H(bp)) {
9039 		/* CAM Entries:
9040 		 *      0-7  - prim ETH MAC for each function
9041 		 *      8-15 - iSCSI L2 ring ETH MAC for each function
9042 		 *      16 till 255 UC MAC lists for each function
9043 		 *
9044 		 * Remark: There is no FCoE support for E1H, thus FCoE related
9045 		 *         MACs are not considered.
9046 		 */
9047 		return E1H_FUNC_MAX * (CAM_ISCSI_ETH_LINE + 1) +
9048 			bnx2x_max_uc_list(bp) * BP_FUNC(bp);
9049 	} else {
9050 		/* CAM Entries (there is a separate CAM per engine):
9051 		 *      0-4  - prim ETH MAC for each function
9052 		 *      4-7 - iSCSI L2 ring ETH MAC for each function
9053 		 *      8-11 - FIP ucast L2 MAC for each function
9054 		 *      12-15 - ALL_ENODE_MACS mcast MAC for each function
9055 		 *      16 till 71 UC MAC lists for each function
9056 		 */
9057 		u8 func_idx =
9058 			(CHIP_MODE_IS_4_PORT(bp) ? BP_FUNC(bp) : BP_VN(bp));
9059 
9060 		return E2_FUNC_MAX * (CAM_MAX_PF_LINE + 1) +
9061 			bnx2x_max_uc_list(bp) * func_idx;
9062 	}
9063 }
9064 
9065 /* set uc list, do not wait as wait implies sleep and
9066  * set_rx_mode can be invoked from non-sleepable context.
9067  *
9068  * Instead we use the same ramrod data buffer each time we need
9069  * to configure a list of addresses, and use the fact that the
9070  * list of MACs is changed in an incremental way and that the
9071  * function is called under the netif_addr_lock. A temporary
9072  * inconsistent CAM configuration (possible in case of very fast
9073  * sequence of add/del/add on the host side) will shortly be
9074  * restored by the handler of the last ramrod.
9075  */
bnx2x_set_uc_list(struct bnx2x * bp)9076 static int bnx2x_set_uc_list(struct bnx2x *bp)
9077 {
9078 	int i = 0, old;
9079 	struct net_device *dev = bp->dev;
9080 	u8 offset = bnx2x_uc_list_cam_offset(bp);
9081 	struct netdev_hw_addr *ha;
9082 	struct mac_configuration_cmd *config_cmd = bnx2x_sp(bp, uc_mac_config);
9083 	dma_addr_t config_cmd_map = bnx2x_sp_mapping(bp, uc_mac_config);
9084 
9085 	if (netdev_uc_count(dev) > bnx2x_max_uc_list(bp))
9086 		return -EINVAL;
9087 
9088 	netdev_for_each_uc_addr(ha, dev) {
9089 		/* copy mac */
9090 		config_cmd->config_table[i].msb_mac_addr =
9091 			swab16(*(u16 *)&bnx2x_uc_addr(ha)[0]);
9092 		config_cmd->config_table[i].middle_mac_addr =
9093 			swab16(*(u16 *)&bnx2x_uc_addr(ha)[2]);
9094 		config_cmd->config_table[i].lsb_mac_addr =
9095 			swab16(*(u16 *)&bnx2x_uc_addr(ha)[4]);
9096 
9097 		config_cmd->config_table[i].vlan_id = 0;
9098 		config_cmd->config_table[i].pf_id = BP_FUNC(bp);
9099 		config_cmd->config_table[i].clients_bit_vector =
9100 			cpu_to_le32(1 << BP_L_ID(bp));
9101 
9102 		SET_FLAG(config_cmd->config_table[i].flags,
9103 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
9104 			T_ETH_MAC_COMMAND_SET);
9105 
9106 		DP(NETIF_MSG_IFUP,
9107 		   "setting UCAST[%d] (%04x:%04x:%04x)\n", i,
9108 		   config_cmd->config_table[i].msb_mac_addr,
9109 		   config_cmd->config_table[i].middle_mac_addr,
9110 		   config_cmd->config_table[i].lsb_mac_addr);
9111 
9112 		i++;
9113 
9114 		/* Set uc MAC in NIG */
9115 		bnx2x_set_mac_in_nig(bp, 1, bnx2x_uc_addr(ha),
9116 				     LLH_CAM_ETH_LINE + i);
9117 	}
9118 	old = config_cmd->hdr.length;
9119 	if (old > i) {
9120 		for (; i < old; i++) {
9121 			if (CAM_IS_INVALID(config_cmd->
9122 					   config_table[i])) {
9123 				/* already invalidated */
9124 				break;
9125 			}
9126 			/* invalidate */
9127 			SET_FLAG(config_cmd->config_table[i].flags,
9128 				MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
9129 				T_ETH_MAC_COMMAND_INVALIDATE);
9130 		}
9131 	}
9132 
9133 	wmb();
9134 
9135 	config_cmd->hdr.length = i;
9136 	config_cmd->hdr.offset = offset;
9137 	config_cmd->hdr.client_id = 0xff;
9138 	/* Mark that this ramrod doesn't use bp->set_mac_pending for
9139 	 * synchronization.
9140 	 */
9141 	config_cmd->hdr.echo = 0;
9142 
9143 	mb();
9144 
9145 	return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_SET_MAC, 0,
9146 		   U64_HI(config_cmd_map), U64_LO(config_cmd_map), 1);
9147 
9148 }
9149 
bnx2x_invalidate_uc_list(struct bnx2x * bp)9150 void bnx2x_invalidate_uc_list(struct bnx2x *bp)
9151 {
9152 	int i;
9153 	struct mac_configuration_cmd *config_cmd = bnx2x_sp(bp, uc_mac_config);
9154 	dma_addr_t config_cmd_map = bnx2x_sp_mapping(bp, uc_mac_config);
9155 	int ramrod_flags = WAIT_RAMROD_COMMON;
9156 	u8 offset = bnx2x_uc_list_cam_offset(bp);
9157 	u8 max_list_size = bnx2x_max_uc_list(bp);
9158 
9159 	for (i = 0; i < max_list_size; i++) {
9160 		SET_FLAG(config_cmd->config_table[i].flags,
9161 			MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
9162 			T_ETH_MAC_COMMAND_INVALIDATE);
9163 		bnx2x_set_mac_in_nig(bp, 0, NULL, LLH_CAM_ETH_LINE + 1 + i);
9164 	}
9165 
9166 	wmb();
9167 
9168 	config_cmd->hdr.length = max_list_size;
9169 	config_cmd->hdr.offset = offset;
9170 	config_cmd->hdr.client_id = 0xff;
9171 	/* We'll wait for a completion this time... */
9172 	config_cmd->hdr.echo = 1;
9173 
9174 	bp->set_mac_pending = 1;
9175 
9176 	mb();
9177 
9178 	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_SET_MAC, 0,
9179 		      U64_HI(config_cmd_map), U64_LO(config_cmd_map), 1);
9180 
9181 	/* Wait for a completion */
9182 	bnx2x_wait_ramrod(bp, 0, 0, &bp->set_mac_pending,
9183 				ramrod_flags);
9184 
9185 }
9186 
bnx2x_set_mc_list(struct bnx2x * bp)9187 static inline int bnx2x_set_mc_list(struct bnx2x *bp)
9188 {
9189 	/* some multicasts */
9190 	if (CHIP_IS_E1(bp)) {
9191 		return bnx2x_set_e1_mc_list(bp);
9192 	} else { /* E1H and newer */
9193 		return bnx2x_set_e1h_mc_list(bp);
9194 	}
9195 }
9196 
9197 /* called with netif_tx_lock from dev_mcast.c */
bnx2x_set_rx_mode(struct net_device * dev)9198 void bnx2x_set_rx_mode(struct net_device *dev)
9199 {
9200 	struct bnx2x *bp = netdev_priv(dev);
9201 	u32 rx_mode = BNX2X_RX_MODE_NORMAL;
9202 
9203 	if (bp->state != BNX2X_STATE_OPEN) {
9204 		DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
9205 		return;
9206 	}
9207 
9208 	DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags);
9209 
9210 	if (dev->flags & IFF_PROMISC)
9211 		rx_mode = BNX2X_RX_MODE_PROMISC;
9212 	else if (dev->flags & IFF_ALLMULTI)
9213 		rx_mode = BNX2X_RX_MODE_ALLMULTI;
9214 	else {
9215 		/* some multicasts */
9216 		if (bnx2x_set_mc_list(bp))
9217 			rx_mode = BNX2X_RX_MODE_ALLMULTI;
9218 
9219 		/* some unicasts */
9220 		if (bnx2x_set_uc_list(bp))
9221 			rx_mode = BNX2X_RX_MODE_PROMISC;
9222 	}
9223 
9224 	bp->rx_mode = rx_mode;
9225 	bnx2x_set_storm_rx_mode(bp);
9226 }
9227 
9228 /* called with rtnl_lock */
bnx2x_mdio_read(struct net_device * netdev,int prtad,int devad,u16 addr)9229 static int bnx2x_mdio_read(struct net_device *netdev, int prtad,
9230 			   int devad, u16 addr)
9231 {
9232 	struct bnx2x *bp = netdev_priv(netdev);
9233 	u16 value;
9234 	int rc;
9235 
9236 	DP(NETIF_MSG_LINK, "mdio_read: prtad 0x%x, devad 0x%x, addr 0x%x\n",
9237 	   prtad, devad, addr);
9238 
9239 	/* The HW expects different devad if CL22 is used */
9240 	devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
9241 
9242 	bnx2x_acquire_phy_lock(bp);
9243 	rc = bnx2x_phy_read(&bp->link_params, prtad, devad, addr, &value);
9244 	bnx2x_release_phy_lock(bp);
9245 	DP(NETIF_MSG_LINK, "mdio_read_val 0x%x rc = 0x%x\n", value, rc);
9246 
9247 	if (!rc)
9248 		rc = value;
9249 	return rc;
9250 }
9251 
9252 /* called with rtnl_lock */
bnx2x_mdio_write(struct net_device * netdev,int prtad,int devad,u16 addr,u16 value)9253 static int bnx2x_mdio_write(struct net_device *netdev, int prtad, int devad,
9254 			    u16 addr, u16 value)
9255 {
9256 	struct bnx2x *bp = netdev_priv(netdev);
9257 	int rc;
9258 
9259 	DP(NETIF_MSG_LINK, "mdio_write: prtad 0x%x, devad 0x%x, addr 0x%x,"
9260 			   " value 0x%x\n", prtad, devad, addr, value);
9261 
9262 	/* The HW expects different devad if CL22 is used */
9263 	devad = (devad == MDIO_DEVAD_NONE) ? DEFAULT_PHY_DEV_ADDR : devad;
9264 
9265 	bnx2x_acquire_phy_lock(bp);
9266 	rc = bnx2x_phy_write(&bp->link_params, prtad, devad, addr, value);
9267 	bnx2x_release_phy_lock(bp);
9268 	return rc;
9269 }
9270 
9271 /* called with rtnl_lock */
bnx2x_ioctl(struct net_device * dev,struct ifreq * ifr,int cmd)9272 static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
9273 {
9274 	struct bnx2x *bp = netdev_priv(dev);
9275 	struct mii_ioctl_data *mdio = if_mii(ifr);
9276 
9277 	DP(NETIF_MSG_LINK, "ioctl: phy id 0x%x, reg 0x%x, val_in 0x%x\n",
9278 	   mdio->phy_id, mdio->reg_num, mdio->val_in);
9279 
9280 	if (!netif_running(dev))
9281 		return -EAGAIN;
9282 
9283 	return mdio_mii_ioctl(&bp->mdio, mdio, cmd);
9284 }
9285 
9286 #ifdef CONFIG_NET_POLL_CONTROLLER
poll_bnx2x(struct net_device * dev)9287 static void poll_bnx2x(struct net_device *dev)
9288 {
9289 	struct bnx2x *bp = netdev_priv(dev);
9290 
9291 	disable_irq(bp->pdev->irq);
9292 	bnx2x_interrupt(bp->pdev->irq, dev);
9293 	enable_irq(bp->pdev->irq);
9294 }
9295 #endif
9296 
9297 static const struct net_device_ops bnx2x_netdev_ops = {
9298 	.ndo_open		= bnx2x_open,
9299 	.ndo_stop		= bnx2x_close,
9300 	.ndo_start_xmit		= bnx2x_start_xmit,
9301 	.ndo_select_queue	= bnx2x_select_queue,
9302 	.ndo_set_rx_mode	= bnx2x_set_rx_mode,
9303 	.ndo_set_mac_address	= bnx2x_change_mac_addr,
9304 	.ndo_validate_addr	= eth_validate_addr,
9305 	.ndo_do_ioctl		= bnx2x_ioctl,
9306 	.ndo_change_mtu		= bnx2x_change_mtu,
9307 	.ndo_tx_timeout		= bnx2x_tx_timeout,
9308 #ifdef CONFIG_NET_POLL_CONTROLLER
9309 	.ndo_poll_controller	= poll_bnx2x,
9310 #endif
9311 };
9312 
bnx2x_init_dev(struct pci_dev * pdev,struct net_device * dev)9313 static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
9314 				    struct net_device *dev)
9315 {
9316 	struct bnx2x *bp;
9317 	int rc;
9318 
9319 	SET_NETDEV_DEV(dev, &pdev->dev);
9320 	bp = netdev_priv(dev);
9321 
9322 	bp->dev = dev;
9323 	bp->pdev = pdev;
9324 	bp->flags = 0;
9325 	bp->pf_num = PCI_FUNC(pdev->devfn);
9326 
9327 	rc = pci_enable_device(pdev);
9328 	if (rc) {
9329 		dev_err(&bp->pdev->dev,
9330 			"Cannot enable PCI device, aborting\n");
9331 		goto err_out;
9332 	}
9333 
9334 	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
9335 		dev_err(&bp->pdev->dev,
9336 			"Cannot find PCI device base address, aborting\n");
9337 		rc = -ENODEV;
9338 		goto err_out_disable;
9339 	}
9340 
9341 	if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
9342 		dev_err(&bp->pdev->dev, "Cannot find second PCI device"
9343 		       " base address, aborting\n");
9344 		rc = -ENODEV;
9345 		goto err_out_disable;
9346 	}
9347 
9348 	if (atomic_read(&pdev->enable_cnt) == 1) {
9349 		rc = pci_request_regions(pdev, DRV_MODULE_NAME);
9350 		if (rc) {
9351 			dev_err(&bp->pdev->dev,
9352 				"Cannot obtain PCI resources, aborting\n");
9353 			goto err_out_disable;
9354 		}
9355 
9356 		pci_set_master(pdev);
9357 		pci_save_state(pdev);
9358 	}
9359 
9360 	bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
9361 	if (bp->pm_cap == 0) {
9362 		dev_err(&bp->pdev->dev,
9363 			"Cannot find power management capability, aborting\n");
9364 		rc = -EIO;
9365 		goto err_out_release;
9366 	}
9367 
9368 	bp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
9369 	if (bp->pcie_cap == 0) {
9370 		dev_err(&bp->pdev->dev,
9371 			"Cannot find PCI Express capability, aborting\n");
9372 		rc = -EIO;
9373 		goto err_out_release;
9374 	}
9375 
9376 	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) == 0) {
9377 		bp->flags |= USING_DAC_FLAG;
9378 		if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)) != 0) {
9379 			dev_err(&bp->pdev->dev, "dma_set_coherent_mask"
9380 			       " failed, aborting\n");
9381 			rc = -EIO;
9382 			goto err_out_release;
9383 		}
9384 
9385 	} else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
9386 		dev_err(&bp->pdev->dev,
9387 			"System does not support DMA, aborting\n");
9388 		rc = -EIO;
9389 		goto err_out_release;
9390 	}
9391 
9392 	dev->mem_start = pci_resource_start(pdev, 0);
9393 	dev->base_addr = dev->mem_start;
9394 	dev->mem_end = pci_resource_end(pdev, 0);
9395 
9396 	dev->irq = pdev->irq;
9397 
9398 	bp->regview = pci_ioremap_bar(pdev, 0);
9399 	if (!bp->regview) {
9400 		dev_err(&bp->pdev->dev,
9401 			"Cannot map register space, aborting\n");
9402 		rc = -ENOMEM;
9403 		goto err_out_release;
9404 	}
9405 
9406 	bp->doorbells = ioremap_nocache(pci_resource_start(pdev, 2),
9407 					min_t(u64, BNX2X_DB_SIZE(bp),
9408 					      pci_resource_len(pdev, 2)));
9409 	if (!bp->doorbells) {
9410 		dev_err(&bp->pdev->dev,
9411 			"Cannot map doorbell space, aborting\n");
9412 		rc = -ENOMEM;
9413 		goto err_out_unmap;
9414 	}
9415 
9416 	bnx2x_set_power_state(bp, PCI_D0);
9417 
9418 	/* clean indirect addresses */
9419 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
9420 			       PCICFG_VENDOR_ID_OFFSET);
9421 	REG_WR(bp, PXP2_REG_PGL_ADDR_88_F0 + BP_PORT(bp)*16, 0);
9422 	REG_WR(bp, PXP2_REG_PGL_ADDR_8C_F0 + BP_PORT(bp)*16, 0);
9423 	REG_WR(bp, PXP2_REG_PGL_ADDR_90_F0 + BP_PORT(bp)*16, 0);
9424 	REG_WR(bp, PXP2_REG_PGL_ADDR_94_F0 + BP_PORT(bp)*16, 0);
9425 
9426 	/* Reset the load counter */
9427 	bnx2x_clear_load_cnt(bp);
9428 
9429 	dev->watchdog_timeo = TX_TIMEOUT;
9430 
9431 	dev->netdev_ops = &bnx2x_netdev_ops;
9432 	bnx2x_set_ethtool_ops(dev);
9433 	dev->features |= NETIF_F_SG;
9434 	dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
9435 	if (bp->flags & USING_DAC_FLAG)
9436 		dev->features |= NETIF_F_HIGHDMA;
9437 	dev->features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
9438 	dev->features |= NETIF_F_TSO6;
9439 	dev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
9440 
9441 	dev->vlan_features |= NETIF_F_SG;
9442 	dev->vlan_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
9443 	if (bp->flags & USING_DAC_FLAG)
9444 		dev->vlan_features |= NETIF_F_HIGHDMA;
9445 	dev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
9446 	dev->vlan_features |= NETIF_F_TSO6;
9447 
9448 #ifdef BCM_DCBNL
9449 	dev->dcbnl_ops = &bnx2x_dcbnl_ops;
9450 #endif
9451 
9452 	/* get_port_hwinfo() will set prtad and mmds properly */
9453 	bp->mdio.prtad = MDIO_PRTAD_NONE;
9454 	bp->mdio.mmds = 0;
9455 	bp->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
9456 	bp->mdio.dev = dev;
9457 	bp->mdio.mdio_read = bnx2x_mdio_read;
9458 	bp->mdio.mdio_write = bnx2x_mdio_write;
9459 
9460 	return 0;
9461 
9462 err_out_unmap:
9463 	if (bp->regview) {
9464 		iounmap(bp->regview);
9465 		bp->regview = NULL;
9466 	}
9467 	if (bp->doorbells) {
9468 		iounmap(bp->doorbells);
9469 		bp->doorbells = NULL;
9470 	}
9471 
9472 err_out_release:
9473 	if (atomic_read(&pdev->enable_cnt) == 1)
9474 		pci_release_regions(pdev);
9475 
9476 err_out_disable:
9477 	pci_disable_device(pdev);
9478 	pci_set_drvdata(pdev, NULL);
9479 
9480 err_out:
9481 	return rc;
9482 }
9483 
bnx2x_get_pcie_width_speed(struct bnx2x * bp,int * width,int * speed)9484 static void __devinit bnx2x_get_pcie_width_speed(struct bnx2x *bp,
9485 						 int *width, int *speed)
9486 {
9487 	u32 val = REG_RD(bp, PCICFG_OFFSET + PCICFG_LINK_CONTROL);
9488 
9489 	*width = (val & PCICFG_LINK_WIDTH) >> PCICFG_LINK_WIDTH_SHIFT;
9490 
9491 	/* return value of 1=2.5GHz 2=5GHz */
9492 	*speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
9493 }
9494 
bnx2x_check_firmware(struct bnx2x * bp)9495 static int bnx2x_check_firmware(struct bnx2x *bp)
9496 {
9497 	const struct firmware *firmware = bp->firmware;
9498 	struct bnx2x_fw_file_hdr *fw_hdr;
9499 	struct bnx2x_fw_file_section *sections;
9500 	u32 offset, len, num_ops;
9501 	u16 *ops_offsets;
9502 	int i;
9503 	const u8 *fw_ver;
9504 
9505 	if (firmware->size < sizeof(struct bnx2x_fw_file_hdr))
9506 		return -EINVAL;
9507 
9508 	fw_hdr = (struct bnx2x_fw_file_hdr *)firmware->data;
9509 	sections = (struct bnx2x_fw_file_section *)fw_hdr;
9510 
9511 	/* Make sure none of the offsets and sizes make us read beyond
9512 	 * the end of the firmware data */
9513 	for (i = 0; i < sizeof(*fw_hdr) / sizeof(*sections); i++) {
9514 		offset = be32_to_cpu(sections[i].offset);
9515 		len = be32_to_cpu(sections[i].len);
9516 		if (offset + len > firmware->size) {
9517 			dev_err(&bp->pdev->dev,
9518 				"Section %d length is out of bounds\n", i);
9519 			return -EINVAL;
9520 		}
9521 	}
9522 
9523 	/* Likewise for the init_ops offsets */
9524 	offset = be32_to_cpu(fw_hdr->init_ops_offsets.offset);
9525 	ops_offsets = (u16 *)(firmware->data + offset);
9526 	num_ops = be32_to_cpu(fw_hdr->init_ops.len) / sizeof(struct raw_op);
9527 
9528 	for (i = 0; i < be32_to_cpu(fw_hdr->init_ops_offsets.len) / 2; i++) {
9529 		if (be16_to_cpu(ops_offsets[i]) > num_ops) {
9530 			dev_err(&bp->pdev->dev,
9531 				"Section offset %d is out of bounds\n", i);
9532 			return -EINVAL;
9533 		}
9534 	}
9535 
9536 	/* Check FW version */
9537 	offset = be32_to_cpu(fw_hdr->fw_version.offset);
9538 	fw_ver = firmware->data + offset;
9539 	if ((fw_ver[0] != BCM_5710_FW_MAJOR_VERSION) ||
9540 	    (fw_ver[1] != BCM_5710_FW_MINOR_VERSION) ||
9541 	    (fw_ver[2] != BCM_5710_FW_REVISION_VERSION) ||
9542 	    (fw_ver[3] != BCM_5710_FW_ENGINEERING_VERSION)) {
9543 		dev_err(&bp->pdev->dev,
9544 			"Bad FW version:%d.%d.%d.%d. Should be %d.%d.%d.%d\n",
9545 		       fw_ver[0], fw_ver[1], fw_ver[2],
9546 		       fw_ver[3], BCM_5710_FW_MAJOR_VERSION,
9547 		       BCM_5710_FW_MINOR_VERSION,
9548 		       BCM_5710_FW_REVISION_VERSION,
9549 		       BCM_5710_FW_ENGINEERING_VERSION);
9550 		return -EINVAL;
9551 	}
9552 
9553 	return 0;
9554 }
9555 
be32_to_cpu_n(const u8 * _source,u8 * _target,u32 n)9556 static inline void be32_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
9557 {
9558 	const __be32 *source = (const __be32 *)_source;
9559 	u32 *target = (u32 *)_target;
9560 	u32 i;
9561 
9562 	for (i = 0; i < n/4; i++)
9563 		target[i] = be32_to_cpu(source[i]);
9564 }
9565 
9566 /*
9567    Ops array is stored in the following format:
9568    {op(8bit), offset(24bit, big endian), data(32bit, big endian)}
9569  */
bnx2x_prep_ops(const u8 * _source,u8 * _target,u32 n)9570 static inline void bnx2x_prep_ops(const u8 *_source, u8 *_target, u32 n)
9571 {
9572 	const __be32 *source = (const __be32 *)_source;
9573 	struct raw_op *target = (struct raw_op *)_target;
9574 	u32 i, j, tmp;
9575 
9576 	for (i = 0, j = 0; i < n/8; i++, j += 2) {
9577 		tmp = be32_to_cpu(source[j]);
9578 		target[i].op = (tmp >> 24) & 0xff;
9579 		target[i].offset = tmp & 0xffffff;
9580 		target[i].raw_data = be32_to_cpu(source[j + 1]);
9581 	}
9582 }
9583 
9584 /**
9585  * IRO array is stored in the following format:
9586  * {base(24bit), m1(16bit), m2(16bit), m3(16bit), size(16bit) }
9587  */
bnx2x_prep_iro(const u8 * _source,u8 * _target,u32 n)9588 static inline void bnx2x_prep_iro(const u8 *_source, u8 *_target, u32 n)
9589 {
9590 	const __be32 *source = (const __be32 *)_source;
9591 	struct iro *target = (struct iro *)_target;
9592 	u32 i, j, tmp;
9593 
9594 	for (i = 0, j = 0; i < n/sizeof(struct iro); i++) {
9595 		target[i].base = be32_to_cpu(source[j]);
9596 		j++;
9597 		tmp = be32_to_cpu(source[j]);
9598 		target[i].m1 = (tmp >> 16) & 0xffff;
9599 		target[i].m2 = tmp & 0xffff;
9600 		j++;
9601 		tmp = be32_to_cpu(source[j]);
9602 		target[i].m3 = (tmp >> 16) & 0xffff;
9603 		target[i].size = tmp & 0xffff;
9604 		j++;
9605 	}
9606 }
9607 
be16_to_cpu_n(const u8 * _source,u8 * _target,u32 n)9608 static inline void be16_to_cpu_n(const u8 *_source, u8 *_target, u32 n)
9609 {
9610 	const __be16 *source = (const __be16 *)_source;
9611 	u16 *target = (u16 *)_target;
9612 	u32 i;
9613 
9614 	for (i = 0; i < n/2; i++)
9615 		target[i] = be16_to_cpu(source[i]);
9616 }
9617 
9618 #define BNX2X_ALLOC_AND_SET(arr, lbl, func)				\
9619 do {									\
9620 	u32 len = be32_to_cpu(fw_hdr->arr.len);				\
9621 	bp->arr = kmalloc(len, GFP_KERNEL);				\
9622 	if (!bp->arr) {							\
9623 		pr_err("Failed to allocate %d bytes for "#arr"\n", len); \
9624 		goto lbl;						\
9625 	}								\
9626 	func(bp->firmware->data + be32_to_cpu(fw_hdr->arr.offset),	\
9627 	     (u8 *)bp->arr, len);					\
9628 } while (0)
9629 
bnx2x_init_firmware(struct bnx2x * bp)9630 int bnx2x_init_firmware(struct bnx2x *bp)
9631 {
9632 	const char *fw_file_name;
9633 	struct bnx2x_fw_file_hdr *fw_hdr;
9634 	int rc;
9635 
9636 	if (CHIP_IS_E1(bp))
9637 		fw_file_name = FW_FILE_NAME_E1;
9638 	else if (CHIP_IS_E1H(bp))
9639 		fw_file_name = FW_FILE_NAME_E1H;
9640 	else if (CHIP_IS_E2(bp))
9641 		fw_file_name = FW_FILE_NAME_E2;
9642 	else {
9643 		BNX2X_ERR("Unsupported chip revision\n");
9644 		return -EINVAL;
9645 	}
9646 
9647 	BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
9648 
9649 	rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
9650 	if (rc) {
9651 		BNX2X_ERR("Can't load firmware file %s\n", fw_file_name);
9652 		goto request_firmware_exit;
9653 	}
9654 
9655 	rc = bnx2x_check_firmware(bp);
9656 	if (rc) {
9657 		BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
9658 		goto request_firmware_exit;
9659 	}
9660 
9661 	fw_hdr = (struct bnx2x_fw_file_hdr *)bp->firmware->data;
9662 
9663 	/* Initialize the pointers to the init arrays */
9664 	/* Blob */
9665 	BNX2X_ALLOC_AND_SET(init_data, request_firmware_exit, be32_to_cpu_n);
9666 
9667 	/* Opcodes */
9668 	BNX2X_ALLOC_AND_SET(init_ops, init_ops_alloc_err, bnx2x_prep_ops);
9669 
9670 	/* Offsets */
9671 	BNX2X_ALLOC_AND_SET(init_ops_offsets, init_offsets_alloc_err,
9672 			    be16_to_cpu_n);
9673 
9674 	/* STORMs firmware */
9675 	INIT_TSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
9676 			be32_to_cpu(fw_hdr->tsem_int_table_data.offset);
9677 	INIT_TSEM_PRAM_DATA(bp)      = bp->firmware->data +
9678 			be32_to_cpu(fw_hdr->tsem_pram_data.offset);
9679 	INIT_USEM_INT_TABLE_DATA(bp) = bp->firmware->data +
9680 			be32_to_cpu(fw_hdr->usem_int_table_data.offset);
9681 	INIT_USEM_PRAM_DATA(bp)      = bp->firmware->data +
9682 			be32_to_cpu(fw_hdr->usem_pram_data.offset);
9683 	INIT_XSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
9684 			be32_to_cpu(fw_hdr->xsem_int_table_data.offset);
9685 	INIT_XSEM_PRAM_DATA(bp)      = bp->firmware->data +
9686 			be32_to_cpu(fw_hdr->xsem_pram_data.offset);
9687 	INIT_CSEM_INT_TABLE_DATA(bp) = bp->firmware->data +
9688 			be32_to_cpu(fw_hdr->csem_int_table_data.offset);
9689 	INIT_CSEM_PRAM_DATA(bp)      = bp->firmware->data +
9690 			be32_to_cpu(fw_hdr->csem_pram_data.offset);
9691 	/* IRO */
9692 	BNX2X_ALLOC_AND_SET(iro_arr, iro_alloc_err, bnx2x_prep_iro);
9693 
9694 	return 0;
9695 
9696 iro_alloc_err:
9697 	kfree(bp->init_ops_offsets);
9698 init_offsets_alloc_err:
9699 	kfree(bp->init_ops);
9700 init_ops_alloc_err:
9701 	kfree(bp->init_data);
9702 request_firmware_exit:
9703 	release_firmware(bp->firmware);
9704 
9705 	return rc;
9706 }
9707 
bnx2x_set_qm_cid_count(struct bnx2x * bp,int l2_cid_count)9708 static inline int bnx2x_set_qm_cid_count(struct bnx2x *bp, int l2_cid_count)
9709 {
9710 	int cid_count = L2_FP_COUNT(l2_cid_count);
9711 
9712 #ifdef BCM_CNIC
9713 	cid_count += CNIC_CID_MAX;
9714 #endif
9715 	return roundup(cid_count, QM_CID_ROUND);
9716 }
9717 
bnx2x_init_one(struct pci_dev * pdev,const struct pci_device_id * ent)9718 static int __devinit bnx2x_init_one(struct pci_dev *pdev,
9719 				    const struct pci_device_id *ent)
9720 {
9721 	struct net_device *dev = NULL;
9722 	struct bnx2x *bp;
9723 	int pcie_width, pcie_speed;
9724 	int rc, cid_count;
9725 
9726 	switch (ent->driver_data) {
9727 	case BCM57710:
9728 	case BCM57711:
9729 	case BCM57711E:
9730 		cid_count = FP_SB_MAX_E1x;
9731 		break;
9732 
9733 	case BCM57712:
9734 	case BCM57712E:
9735 		cid_count = FP_SB_MAX_E2;
9736 		break;
9737 
9738 	default:
9739 		pr_err("Unknown board_type (%ld), aborting\n",
9740 			   ent->driver_data);
9741 		return -ENODEV;
9742 	}
9743 
9744 	cid_count += NONE_ETH_CONTEXT_USE + CNIC_CONTEXT_USE;
9745 
9746 	/* dev zeroed in init_etherdev */
9747 	dev = alloc_etherdev_mq(sizeof(*bp), cid_count);
9748 	if (!dev) {
9749 		dev_err(&pdev->dev, "Cannot allocate net device\n");
9750 		return -ENOMEM;
9751 	}
9752 
9753 	bp = netdev_priv(dev);
9754 	bp->msg_enable = debug;
9755 
9756 	pci_set_drvdata(pdev, dev);
9757 
9758 	bp->l2_cid_count = cid_count;
9759 
9760 	rc = bnx2x_init_dev(pdev, dev);
9761 	if (rc < 0) {
9762 		free_netdev(dev);
9763 		return rc;
9764 	}
9765 
9766 	rc = bnx2x_init_bp(bp);
9767 	if (rc)
9768 		goto init_one_exit;
9769 
9770 	/* calc qm_cid_count */
9771 	bp->qm_cid_count = bnx2x_set_qm_cid_count(bp, cid_count);
9772 
9773 #ifdef BCM_CNIC
9774 	/* disable FCOE L2 queue for E1x*/
9775 	if (CHIP_IS_E1x(bp))
9776 		bp->flags |= NO_FCOE_FLAG;
9777 
9778 #endif
9779 
9780 	/* Configure interrupt mode: try to enable MSI-X/MSI if
9781 	 * needed, set bp->num_queues appropriately.
9782 	 */
9783 	bnx2x_set_int_mode(bp);
9784 
9785 	/* Add all NAPI objects */
9786 	bnx2x_add_all_napi(bp);
9787 
9788 	rc = register_netdev(dev);
9789 	if (rc) {
9790 		dev_err(&pdev->dev, "Cannot register net device\n");
9791 		goto init_one_exit;
9792 	}
9793 
9794 #ifdef BCM_CNIC
9795 	if (!NO_FCOE(bp)) {
9796 		/* Add storage MAC address */
9797 		rtnl_lock();
9798 		dev_addr_add(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
9799 		rtnl_unlock();
9800 	}
9801 #endif
9802 
9803 	bnx2x_get_pcie_width_speed(bp, &pcie_width, &pcie_speed);
9804 
9805 	netdev_info(dev, "%s (%c%d) PCI-E x%d %s found at mem %lx,"
9806 	       " IRQ %d, ", board_info[ent->driver_data].name,
9807 	       (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
9808 	       pcie_width,
9809 	       ((!CHIP_IS_E2(bp) && pcie_speed == 2) ||
9810 		 (CHIP_IS_E2(bp) && pcie_speed == 1)) ?
9811 						"5GHz (Gen2)" : "2.5GHz",
9812 	       dev->base_addr, bp->pdev->irq);
9813 	pr_cont("node addr %pM\n", dev->dev_addr);
9814 
9815 	return 0;
9816 
9817 init_one_exit:
9818 	if (bp->regview)
9819 		iounmap(bp->regview);
9820 
9821 	if (bp->doorbells)
9822 		iounmap(bp->doorbells);
9823 
9824 	free_netdev(dev);
9825 
9826 	if (atomic_read(&pdev->enable_cnt) == 1)
9827 		pci_release_regions(pdev);
9828 
9829 	pci_disable_device(pdev);
9830 	pci_set_drvdata(pdev, NULL);
9831 
9832 	return rc;
9833 }
9834 
bnx2x_remove_one(struct pci_dev * pdev)9835 static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
9836 {
9837 	struct net_device *dev = pci_get_drvdata(pdev);
9838 	struct bnx2x *bp;
9839 
9840 	if (!dev) {
9841 		dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
9842 		return;
9843 	}
9844 	bp = netdev_priv(dev);
9845 
9846 #ifdef BCM_CNIC
9847 	/* Delete storage MAC address */
9848 	if (!NO_FCOE(bp)) {
9849 		rtnl_lock();
9850 		dev_addr_del(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
9851 		rtnl_unlock();
9852 	}
9853 #endif
9854 
9855 #ifdef BCM_DCBNL
9856 	/* Delete app tlvs from dcbnl */
9857 	bnx2x_dcbnl_update_applist(bp, true);
9858 #endif
9859 
9860 	unregister_netdev(dev);
9861 
9862 	/* Delete all NAPI objects */
9863 	bnx2x_del_all_napi(bp);
9864 
9865 	/* Power on: we can't let PCI layer write to us while we are in D3 */
9866 	bnx2x_set_power_state(bp, PCI_D0);
9867 
9868 	/* Disable MSI/MSI-X */
9869 	bnx2x_disable_msi(bp);
9870 
9871 	/* Power off */
9872 	bnx2x_set_power_state(bp, PCI_D3hot);
9873 
9874 	/* Make sure RESET task is not scheduled before continuing */
9875 	cancel_delayed_work_sync(&bp->reset_task);
9876 
9877 	if (bp->regview)
9878 		iounmap(bp->regview);
9879 
9880 	if (bp->doorbells)
9881 		iounmap(bp->doorbells);
9882 
9883 	bnx2x_free_mem_bp(bp);
9884 
9885 	free_netdev(dev);
9886 
9887 	if (atomic_read(&pdev->enable_cnt) == 1)
9888 		pci_release_regions(pdev);
9889 
9890 	pci_disable_device(pdev);
9891 	pci_set_drvdata(pdev, NULL);
9892 }
9893 
bnx2x_eeh_nic_unload(struct bnx2x * bp)9894 static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
9895 {
9896 	int i;
9897 
9898 	bp->state = BNX2X_STATE_ERROR;
9899 
9900 	bp->rx_mode = BNX2X_RX_MODE_NONE;
9901 
9902 	bnx2x_netif_stop(bp, 0);
9903 	netif_carrier_off(bp->dev);
9904 
9905 	del_timer_sync(&bp->timer);
9906 	bp->stats_state = STATS_STATE_DISABLED;
9907 	DP(BNX2X_MSG_STATS, "stats_state - DISABLED\n");
9908 
9909 	/* Release IRQs */
9910 	bnx2x_free_irq(bp);
9911 
9912 	/* Free SKBs, SGEs, TPA pool and driver internals */
9913 	bnx2x_free_skbs(bp);
9914 
9915 	for_each_rx_queue(bp, i)
9916 		bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
9917 
9918 	bnx2x_free_mem(bp);
9919 
9920 	bp->state = BNX2X_STATE_CLOSED;
9921 
9922 	return 0;
9923 }
9924 
bnx2x_eeh_recover(struct bnx2x * bp)9925 static void bnx2x_eeh_recover(struct bnx2x *bp)
9926 {
9927 	u32 val;
9928 
9929 	mutex_init(&bp->port.phy_mutex);
9930 
9931 	bp->common.shmem_base = REG_RD(bp, MISC_REG_SHARED_MEM_ADDR);
9932 	bp->link_params.shmem_base = bp->common.shmem_base;
9933 	BNX2X_DEV_INFO("shmem offset is 0x%x\n", bp->common.shmem_base);
9934 
9935 	if (!bp->common.shmem_base ||
9936 	    (bp->common.shmem_base < 0xA0000) ||
9937 	    (bp->common.shmem_base >= 0xC0000)) {
9938 		BNX2X_DEV_INFO("MCP not active\n");
9939 		bp->flags |= NO_MCP_FLAG;
9940 		return;
9941 	}
9942 
9943 	val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
9944 	if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
9945 		!= (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
9946 		BNX2X_ERR("BAD MCP validity signature\n");
9947 
9948 	if (!BP_NOMCP(bp)) {
9949 		bp->fw_seq =
9950 		    (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
9951 		    DRV_MSG_SEQ_NUMBER_MASK);
9952 		BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq);
9953 	}
9954 }
9955 
9956 /**
9957  * bnx2x_io_error_detected - called when PCI error is detected
9958  * @pdev: Pointer to PCI device
9959  * @state: The current pci connection state
9960  *
9961  * This function is called after a PCI bus error affecting
9962  * this device has been detected.
9963  */
bnx2x_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)9964 static pci_ers_result_t bnx2x_io_error_detected(struct pci_dev *pdev,
9965 						pci_channel_state_t state)
9966 {
9967 	struct net_device *dev = pci_get_drvdata(pdev);
9968 	struct bnx2x *bp = netdev_priv(dev);
9969 
9970 	rtnl_lock();
9971 
9972 	netif_device_detach(dev);
9973 
9974 	if (state == pci_channel_io_perm_failure) {
9975 		rtnl_unlock();
9976 		return PCI_ERS_RESULT_DISCONNECT;
9977 	}
9978 
9979 	if (netif_running(dev))
9980 		bnx2x_eeh_nic_unload(bp);
9981 
9982 	pci_disable_device(pdev);
9983 
9984 	rtnl_unlock();
9985 
9986 	/* Request a slot reset */
9987 	return PCI_ERS_RESULT_NEED_RESET;
9988 }
9989 
9990 /**
9991  * bnx2x_io_slot_reset - called after the PCI bus has been reset
9992  * @pdev: Pointer to PCI device
9993  *
9994  * Restart the card from scratch, as if from a cold-boot.
9995  */
bnx2x_io_slot_reset(struct pci_dev * pdev)9996 static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
9997 {
9998 	struct net_device *dev = pci_get_drvdata(pdev);
9999 	struct bnx2x *bp = netdev_priv(dev);
10000 
10001 	rtnl_lock();
10002 
10003 	if (pci_enable_device(pdev)) {
10004 		dev_err(&pdev->dev,
10005 			"Cannot re-enable PCI device after reset\n");
10006 		rtnl_unlock();
10007 		return PCI_ERS_RESULT_DISCONNECT;
10008 	}
10009 
10010 	pci_set_master(pdev);
10011 	pci_restore_state(pdev);
10012 
10013 	if (netif_running(dev))
10014 		bnx2x_set_power_state(bp, PCI_D0);
10015 
10016 	rtnl_unlock();
10017 
10018 	return PCI_ERS_RESULT_RECOVERED;
10019 }
10020 
10021 /**
10022  * bnx2x_io_resume - called when traffic can start flowing again
10023  * @pdev: Pointer to PCI device
10024  *
10025  * This callback is called when the error recovery driver tells us that
10026  * its OK to resume normal operation.
10027  */
bnx2x_io_resume(struct pci_dev * pdev)10028 static void bnx2x_io_resume(struct pci_dev *pdev)
10029 {
10030 	struct net_device *dev = pci_get_drvdata(pdev);
10031 	struct bnx2x *bp = netdev_priv(dev);
10032 
10033 	if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
10034 		printk(KERN_ERR "Handling parity error recovery. "
10035 				"Try again later\n");
10036 		return;
10037 	}
10038 
10039 	rtnl_lock();
10040 
10041 	bnx2x_eeh_recover(bp);
10042 
10043 	if (netif_running(dev))
10044 		bnx2x_nic_load(bp, LOAD_NORMAL);
10045 
10046 	netif_device_attach(dev);
10047 
10048 	rtnl_unlock();
10049 }
10050 
10051 static struct pci_error_handlers bnx2x_err_handler = {
10052 	.error_detected = bnx2x_io_error_detected,
10053 	.slot_reset     = bnx2x_io_slot_reset,
10054 	.resume         = bnx2x_io_resume,
10055 };
10056 
10057 static struct pci_driver bnx2x_pci_driver = {
10058 	.name        = DRV_MODULE_NAME,
10059 	.id_table    = bnx2x_pci_tbl,
10060 	.probe       = bnx2x_init_one,
10061 	.remove      = __devexit_p(bnx2x_remove_one),
10062 	.suspend     = bnx2x_suspend,
10063 	.resume      = bnx2x_resume,
10064 	.err_handler = &bnx2x_err_handler,
10065 };
10066 
bnx2x_init(void)10067 static int __init bnx2x_init(void)
10068 {
10069 	int ret;
10070 
10071 	pr_info("%s", version);
10072 
10073 	bnx2x_wq = create_singlethread_workqueue("bnx2x");
10074 	if (bnx2x_wq == NULL) {
10075 		pr_err("Cannot create workqueue\n");
10076 		return -ENOMEM;
10077 	}
10078 
10079 	ret = pci_register_driver(&bnx2x_pci_driver);
10080 	if (ret) {
10081 		pr_err("Cannot register driver\n");
10082 		destroy_workqueue(bnx2x_wq);
10083 	}
10084 	return ret;
10085 }
10086 
bnx2x_cleanup(void)10087 static void __exit bnx2x_cleanup(void)
10088 {
10089 	pci_unregister_driver(&bnx2x_pci_driver);
10090 
10091 	destroy_workqueue(bnx2x_wq);
10092 }
10093 
10094 module_init(bnx2x_init);
10095 module_exit(bnx2x_cleanup);
10096 
10097 #ifdef BCM_CNIC
10098 
10099 /* count denotes the number of new completions we have seen */
bnx2x_cnic_sp_post(struct bnx2x * bp,int count)10100 static void bnx2x_cnic_sp_post(struct bnx2x *bp, int count)
10101 {
10102 	struct eth_spe *spe;
10103 
10104 #ifdef BNX2X_STOP_ON_ERROR
10105 	if (unlikely(bp->panic))
10106 		return;
10107 #endif
10108 
10109 	spin_lock_bh(&bp->spq_lock);
10110 	BUG_ON(bp->cnic_spq_pending < count);
10111 	bp->cnic_spq_pending -= count;
10112 
10113 
10114 	for (; bp->cnic_kwq_pending; bp->cnic_kwq_pending--) {
10115 		u16 type =  (le16_to_cpu(bp->cnic_kwq_cons->hdr.type)
10116 				& SPE_HDR_CONN_TYPE) >>
10117 				SPE_HDR_CONN_TYPE_SHIFT;
10118 
10119 		/* Set validation for iSCSI L2 client before sending SETUP
10120 		 *  ramrod
10121 		 */
10122 		if (type == ETH_CONNECTION_TYPE) {
10123 			u8 cmd = (le32_to_cpu(bp->cnic_kwq_cons->
10124 					     hdr.conn_and_cmd_data) >>
10125 				SPE_HDR_CMD_ID_SHIFT) & 0xff;
10126 
10127 			if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP)
10128 				bnx2x_set_ctx_validation(&bp->context.
10129 						vcxt[BNX2X_ISCSI_ETH_CID].eth,
10130 					HW_CID(bp, BNX2X_ISCSI_ETH_CID));
10131 		}
10132 
10133 		/* There may be not more than 8 L2 and not more than 8 L5 SPEs
10134 		 * We also check that the number of outstanding
10135 		 * COMMON ramrods is not more than the EQ and SPQ can
10136 		 * accommodate.
10137 		 */
10138 		if (type == ETH_CONNECTION_TYPE) {
10139 			if (!atomic_read(&bp->cq_spq_left))
10140 				break;
10141 			else
10142 				atomic_dec(&bp->cq_spq_left);
10143 		} else if (type == NONE_CONNECTION_TYPE) {
10144 			if (!atomic_read(&bp->eq_spq_left))
10145 				break;
10146 			else
10147 				atomic_dec(&bp->eq_spq_left);
10148 		} else if ((type == ISCSI_CONNECTION_TYPE) ||
10149 			   (type == FCOE_CONNECTION_TYPE)) {
10150 			if (bp->cnic_spq_pending >=
10151 			    bp->cnic_eth_dev.max_kwqe_pending)
10152 				break;
10153 			else
10154 				bp->cnic_spq_pending++;
10155 		} else {
10156 			BNX2X_ERR("Unknown SPE type: %d\n", type);
10157 			bnx2x_panic();
10158 			break;
10159 		}
10160 
10161 		spe = bnx2x_sp_get_next(bp);
10162 		*spe = *bp->cnic_kwq_cons;
10163 
10164 		DP(NETIF_MSG_TIMER, "pending on SPQ %d, on KWQ %d count %d\n",
10165 		   bp->cnic_spq_pending, bp->cnic_kwq_pending, count);
10166 
10167 		if (bp->cnic_kwq_cons == bp->cnic_kwq_last)
10168 			bp->cnic_kwq_cons = bp->cnic_kwq;
10169 		else
10170 			bp->cnic_kwq_cons++;
10171 	}
10172 	bnx2x_sp_prod_update(bp);
10173 	spin_unlock_bh(&bp->spq_lock);
10174 }
10175 
bnx2x_cnic_sp_queue(struct net_device * dev,struct kwqe_16 * kwqes[],u32 count)10176 static int bnx2x_cnic_sp_queue(struct net_device *dev,
10177 			       struct kwqe_16 *kwqes[], u32 count)
10178 {
10179 	struct bnx2x *bp = netdev_priv(dev);
10180 	int i;
10181 
10182 #ifdef BNX2X_STOP_ON_ERROR
10183 	if (unlikely(bp->panic))
10184 		return -EIO;
10185 #endif
10186 
10187 	spin_lock_bh(&bp->spq_lock);
10188 
10189 	for (i = 0; i < count; i++) {
10190 		struct eth_spe *spe = (struct eth_spe *)kwqes[i];
10191 
10192 		if (bp->cnic_kwq_pending == MAX_SP_DESC_CNT)
10193 			break;
10194 
10195 		*bp->cnic_kwq_prod = *spe;
10196 
10197 		bp->cnic_kwq_pending++;
10198 
10199 		DP(NETIF_MSG_TIMER, "L5 SPQE %x %x %x:%x pos %d\n",
10200 		   spe->hdr.conn_and_cmd_data, spe->hdr.type,
10201 		   spe->data.update_data_addr.hi,
10202 		   spe->data.update_data_addr.lo,
10203 		   bp->cnic_kwq_pending);
10204 
10205 		if (bp->cnic_kwq_prod == bp->cnic_kwq_last)
10206 			bp->cnic_kwq_prod = bp->cnic_kwq;
10207 		else
10208 			bp->cnic_kwq_prod++;
10209 	}
10210 
10211 	spin_unlock_bh(&bp->spq_lock);
10212 
10213 	if (bp->cnic_spq_pending < bp->cnic_eth_dev.max_kwqe_pending)
10214 		bnx2x_cnic_sp_post(bp, 0);
10215 
10216 	return i;
10217 }
10218 
bnx2x_cnic_ctl_send(struct bnx2x * bp,struct cnic_ctl_info * ctl)10219 static int bnx2x_cnic_ctl_send(struct bnx2x *bp, struct cnic_ctl_info *ctl)
10220 {
10221 	struct cnic_ops *c_ops;
10222 	int rc = 0;
10223 
10224 	mutex_lock(&bp->cnic_mutex);
10225 	c_ops = rcu_dereference_protected(bp->cnic_ops,
10226 					  lockdep_is_held(&bp->cnic_mutex));
10227 	if (c_ops)
10228 		rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
10229 	mutex_unlock(&bp->cnic_mutex);
10230 
10231 	return rc;
10232 }
10233 
bnx2x_cnic_ctl_send_bh(struct bnx2x * bp,struct cnic_ctl_info * ctl)10234 static int bnx2x_cnic_ctl_send_bh(struct bnx2x *bp, struct cnic_ctl_info *ctl)
10235 {
10236 	struct cnic_ops *c_ops;
10237 	int rc = 0;
10238 
10239 	rcu_read_lock();
10240 	c_ops = rcu_dereference(bp->cnic_ops);
10241 	if (c_ops)
10242 		rc = c_ops->cnic_ctl(bp->cnic_data, ctl);
10243 	rcu_read_unlock();
10244 
10245 	return rc;
10246 }
10247 
10248 /*
10249  * for commands that have no data
10250  */
bnx2x_cnic_notify(struct bnx2x * bp,int cmd)10251 int bnx2x_cnic_notify(struct bnx2x *bp, int cmd)
10252 {
10253 	struct cnic_ctl_info ctl = {0};
10254 
10255 	ctl.cmd = cmd;
10256 
10257 	return bnx2x_cnic_ctl_send(bp, &ctl);
10258 }
10259 
bnx2x_cnic_cfc_comp(struct bnx2x * bp,int cid)10260 static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid)
10261 {
10262 	struct cnic_ctl_info ctl;
10263 
10264 	/* first we tell CNIC and only then we count this as a completion */
10265 	ctl.cmd = CNIC_CTL_COMPLETION_CMD;
10266 	ctl.data.comp.cid = cid;
10267 
10268 	bnx2x_cnic_ctl_send_bh(bp, &ctl);
10269 	bnx2x_cnic_sp_post(bp, 0);
10270 }
10271 
bnx2x_drv_ctl(struct net_device * dev,struct drv_ctl_info * ctl)10272 static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
10273 {
10274 	struct bnx2x *bp = netdev_priv(dev);
10275 	int rc = 0;
10276 
10277 	switch (ctl->cmd) {
10278 	case DRV_CTL_CTXTBL_WR_CMD: {
10279 		u32 index = ctl->data.io.offset;
10280 		dma_addr_t addr = ctl->data.io.dma_addr;
10281 
10282 		bnx2x_ilt_wr(bp, index, addr);
10283 		break;
10284 	}
10285 
10286 	case DRV_CTL_RET_L5_SPQ_CREDIT_CMD: {
10287 		int count = ctl->data.credit.credit_count;
10288 
10289 		bnx2x_cnic_sp_post(bp, count);
10290 		break;
10291 	}
10292 
10293 	/* rtnl_lock is held.  */
10294 	case DRV_CTL_START_L2_CMD: {
10295 		u32 cli = ctl->data.ring.client_id;
10296 
10297 		/* Clear FCoE FIP and ALL ENODE MACs addresses first */
10298 		bnx2x_del_fcoe_eth_macs(bp);
10299 
10300 		/* Set iSCSI MAC address */
10301 		bnx2x_set_iscsi_eth_mac_addr(bp, 1);
10302 
10303 		mmiowb();
10304 		barrier();
10305 
10306 		/* Start accepting on iSCSI L2 ring. Accept all multicasts
10307 		 * because it's the only way for UIO Client to accept
10308 		 * multicasts (in non-promiscuous mode only one Client per
10309 		 * function will receive multicast packets (leading in our
10310 		 * case).
10311 		 */
10312 		bnx2x_rxq_set_mac_filters(bp, cli,
10313 			BNX2X_ACCEPT_UNICAST |
10314 			BNX2X_ACCEPT_BROADCAST |
10315 			BNX2X_ACCEPT_ALL_MULTICAST);
10316 		storm_memset_mac_filters(bp, &bp->mac_filters, BP_FUNC(bp));
10317 
10318 		break;
10319 	}
10320 
10321 	/* rtnl_lock is held.  */
10322 	case DRV_CTL_STOP_L2_CMD: {
10323 		u32 cli = ctl->data.ring.client_id;
10324 
10325 		/* Stop accepting on iSCSI L2 ring */
10326 		bnx2x_rxq_set_mac_filters(bp, cli, BNX2X_ACCEPT_NONE);
10327 		storm_memset_mac_filters(bp, &bp->mac_filters, BP_FUNC(bp));
10328 
10329 		mmiowb();
10330 		barrier();
10331 
10332 		/* Unset iSCSI L2 MAC */
10333 		bnx2x_set_iscsi_eth_mac_addr(bp, 0);
10334 		break;
10335 	}
10336 	case DRV_CTL_RET_L2_SPQ_CREDIT_CMD: {
10337 		int count = ctl->data.credit.credit_count;
10338 
10339 		smp_mb__before_atomic_inc();
10340 		atomic_add(count, &bp->cq_spq_left);
10341 		smp_mb__after_atomic_inc();
10342 		break;
10343 	}
10344 
10345 	default:
10346 		BNX2X_ERR("unknown command %x\n", ctl->cmd);
10347 		rc = -EINVAL;
10348 	}
10349 
10350 	return rc;
10351 }
10352 
bnx2x_setup_cnic_irq_info(struct bnx2x * bp)10353 void bnx2x_setup_cnic_irq_info(struct bnx2x *bp)
10354 {
10355 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
10356 
10357 	if (bp->flags & USING_MSIX_FLAG) {
10358 		cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;
10359 		cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;
10360 		cp->irq_arr[0].vector = bp->msix_table[1].vector;
10361 	} else {
10362 		cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;
10363 		cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;
10364 	}
10365 	if (CHIP_IS_E2(bp))
10366 		cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e2_sb;
10367 	else
10368 		cp->irq_arr[0].status_blk = (void *)bp->cnic_sb.e1x_sb;
10369 
10370 	cp->irq_arr[0].status_blk_num = CNIC_SB_ID(bp);
10371 	cp->irq_arr[0].status_blk_num2 = CNIC_IGU_SB_ID(bp);
10372 	cp->irq_arr[1].status_blk = bp->def_status_blk;
10373 	cp->irq_arr[1].status_blk_num = DEF_SB_ID;
10374 	cp->irq_arr[1].status_blk_num2 = DEF_SB_IGU_ID;
10375 
10376 	cp->num_irq = 2;
10377 }
10378 
bnx2x_register_cnic(struct net_device * dev,struct cnic_ops * ops,void * data)10379 static int bnx2x_register_cnic(struct net_device *dev, struct cnic_ops *ops,
10380 			       void *data)
10381 {
10382 	struct bnx2x *bp = netdev_priv(dev);
10383 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
10384 
10385 	if (ops == NULL)
10386 		return -EINVAL;
10387 
10388 	if (atomic_read(&bp->intr_sem) != 0)
10389 		return -EBUSY;
10390 
10391 	bp->cnic_kwq = kzalloc(PAGE_SIZE, GFP_KERNEL);
10392 	if (!bp->cnic_kwq)
10393 		return -ENOMEM;
10394 
10395 	bp->cnic_kwq_cons = bp->cnic_kwq;
10396 	bp->cnic_kwq_prod = bp->cnic_kwq;
10397 	bp->cnic_kwq_last = bp->cnic_kwq + MAX_SP_DESC_CNT;
10398 
10399 	bp->cnic_spq_pending = 0;
10400 	bp->cnic_kwq_pending = 0;
10401 
10402 	bp->cnic_data = data;
10403 
10404 	cp->num_irq = 0;
10405 	cp->drv_state = CNIC_DRV_STATE_REGD;
10406 	cp->iro_arr = bp->iro_arr;
10407 
10408 	bnx2x_setup_cnic_irq_info(bp);
10409 
10410 	rcu_assign_pointer(bp->cnic_ops, ops);
10411 
10412 	return 0;
10413 }
10414 
bnx2x_unregister_cnic(struct net_device * dev)10415 static int bnx2x_unregister_cnic(struct net_device *dev)
10416 {
10417 	struct bnx2x *bp = netdev_priv(dev);
10418 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
10419 
10420 	mutex_lock(&bp->cnic_mutex);
10421 	cp->drv_state = 0;
10422 	rcu_assign_pointer(bp->cnic_ops, NULL);
10423 	mutex_unlock(&bp->cnic_mutex);
10424 	synchronize_rcu();
10425 	kfree(bp->cnic_kwq);
10426 	bp->cnic_kwq = NULL;
10427 
10428 	return 0;
10429 }
10430 
bnx2x_cnic_probe(struct net_device * dev)10431 struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev)
10432 {
10433 	struct bnx2x *bp = netdev_priv(dev);
10434 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
10435 
10436 	/* If both iSCSI and FCoE are disabled - return NULL in
10437 	 * order to indicate CNIC that it should not try to work
10438 	 * with this device.
10439 	 */
10440 	if (NO_ISCSI(bp) && NO_FCOE(bp))
10441 		return NULL;
10442 
10443 	cp->drv_owner = THIS_MODULE;
10444 	cp->chip_id = CHIP_ID(bp);
10445 	cp->pdev = bp->pdev;
10446 	cp->io_base = bp->regview;
10447 	cp->io_base2 = bp->doorbells;
10448 	cp->max_kwqe_pending = 8;
10449 	cp->ctx_blk_size = CDU_ILT_PAGE_SZ;
10450 	cp->ctx_tbl_offset = FUNC_ILT_BASE(BP_FUNC(bp)) +
10451 			     bnx2x_cid_ilt_lines(bp);
10452 	cp->ctx_tbl_len = CNIC_ILT_LINES;
10453 	cp->starting_cid = bnx2x_cid_ilt_lines(bp) * ILT_PAGE_CIDS;
10454 	cp->drv_submit_kwqes_16 = bnx2x_cnic_sp_queue;
10455 	cp->drv_ctl = bnx2x_drv_ctl;
10456 	cp->drv_register_cnic = bnx2x_register_cnic;
10457 	cp->drv_unregister_cnic = bnx2x_unregister_cnic;
10458 	cp->fcoe_init_cid = BNX2X_FCOE_ETH_CID;
10459 	cp->iscsi_l2_client_id = BNX2X_ISCSI_ETH_CL_ID +
10460 		BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE;
10461 	cp->iscsi_l2_cid = BNX2X_ISCSI_ETH_CID;
10462 
10463 	if (NO_ISCSI_OOO(bp))
10464 		cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
10465 
10466 	if (NO_ISCSI(bp))
10467 		cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
10468 
10469 	if (NO_FCOE(bp))
10470 		cp->drv_state |= CNIC_DRV_STATE_NO_FCOE;
10471 
10472 	DP(BNX2X_MSG_SP, "page_size %d, tbl_offset %d, tbl_lines %d, "
10473 			 "starting cid %d\n",
10474 	   cp->ctx_blk_size,
10475 	   cp->ctx_tbl_offset,
10476 	   cp->ctx_tbl_len,
10477 	   cp->starting_cid);
10478 	return cp;
10479 }
10480 EXPORT_SYMBOL(bnx2x_cnic_probe);
10481 
10482 #endif /* BCM_CNIC */
10483 
10484