1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*****************************************************************************
3 * *
4 * File: common.h *
5 * $Revision: 1.21 $ *
6 * $Date: 2005/06/22 00:43:25 $ *
7 * Description: *
8 * part of the Chelsio 10Gb Ethernet Driver. *
9 * *
10 * *
11 * http://www.chelsio.com *
12 * *
13 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
14 * All rights reserved. *
15 * *
16 * Maintainers: maintainers@chelsio.com *
17 * *
18 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
19 * Tina Yang <tainay@chelsio.com> *
20 * Felix Marti <felix@chelsio.com> *
21 * Scott Bardone <sbardone@chelsio.com> *
22 * Kurt Ottaway <kottaway@chelsio.com> *
23 * Frank DiMambro <frank@chelsio.com> *
24 * *
25 * History: *
26 * *
27 ****************************************************************************/
28
29 #define pr_fmt(fmt) "cxgb: " fmt
30
31 #ifndef _CXGB_COMMON_H_
32 #define _CXGB_COMMON_H_
33
34 #include <linux/module.h>
35 #include <linux/netdevice.h>
36 #include <linux/types.h>
37 #include <linux/delay.h>
38 #include <linux/pci.h>
39 #include <linux/ethtool.h>
40 #include <linux/if_vlan.h>
41 #include <linux/mdio.h>
42 #include <linux/crc32.h>
43 #include <linux/slab.h>
44 #include <asm/io.h>
45 #include <linux/pci_ids.h>
46
47 #define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
48 #define DRV_NAME "cxgb"
49
50 #define CH_DEVICE(devid, ssid, idx) \
51 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
52
53 #define SUPPORTED_PAUSE (1 << 13)
54 #define SUPPORTED_LOOPBACK (1 << 15)
55
56 #define ADVERTISED_PAUSE (1 << 13)
57 #define ADVERTISED_ASYM_PAUSE (1 << 14)
58
59 typedef struct adapter adapter_t;
60
61 struct t1_rx_mode {
62 struct net_device *dev;
63 };
64
65 #define t1_rx_mode_promisc(rm) (rm->dev->flags & IFF_PROMISC)
66 #define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
67 #define t1_rx_mode_mc_cnt(rm) (netdev_mc_count(rm->dev))
68 #define t1_get_netdev(rm) (rm->dev)
69
70 #define MAX_NPORTS 4
71 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
72 #define NMTUS 8
73 #define TCB_SIZE 128
74
75 #define SPEED_INVALID 0xffff
76 #define DUPLEX_INVALID 0xff
77
78 /* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */
79 #define PM3393_MAX_FRAME_SIZE 9600
80
81 #define VSC7326_MAX_MTU 9600
82
83 enum {
84 CHBT_BOARD_N110,
85 CHBT_BOARD_N210,
86 CHBT_BOARD_7500,
87 CHBT_BOARD_8000,
88 CHBT_BOARD_CHT101,
89 CHBT_BOARD_CHT110,
90 CHBT_BOARD_CHT210,
91 CHBT_BOARD_CHT204,
92 CHBT_BOARD_CHT204V,
93 CHBT_BOARD_CHT204E,
94 CHBT_BOARD_CHN204,
95 CHBT_BOARD_COUGAR,
96 CHBT_BOARD_6800,
97 CHBT_BOARD_SIMUL,
98 };
99
100 enum {
101 CHBT_TERM_FPGA,
102 CHBT_TERM_T1,
103 CHBT_TERM_T2,
104 CHBT_TERM_T3
105 };
106
107 enum {
108 CHBT_MAC_CHELSIO_A,
109 CHBT_MAC_IXF1010,
110 CHBT_MAC_PM3393,
111 CHBT_MAC_VSC7321,
112 CHBT_MAC_DUMMY
113 };
114
115 enum {
116 CHBT_PHY_88E1041,
117 CHBT_PHY_88E1111,
118 CHBT_PHY_88X2010,
119 CHBT_PHY_XPAK,
120 CHBT_PHY_MY3126,
121 CHBT_PHY_8244,
122 CHBT_PHY_DUMMY
123 };
124
125 enum {
126 PAUSE_RX = 1 << 0,
127 PAUSE_TX = 1 << 1,
128 PAUSE_AUTONEG = 1 << 2
129 };
130
131 /* Revisions of T1 chip */
132 enum {
133 TERM_T1A = 0,
134 TERM_T1B = 1,
135 TERM_T2 = 3
136 };
137
138 struct sge_params {
139 unsigned int cmdQ_size[2];
140 unsigned int freelQ_size[2];
141 unsigned int large_buf_capacity;
142 unsigned int rx_coalesce_usecs;
143 unsigned int last_rx_coalesce_raw;
144 unsigned int default_rx_coalesce_usecs;
145 unsigned int sample_interval_usecs;
146 unsigned int coalesce_enable;
147 unsigned int polling;
148 };
149
150 struct chelsio_pci_params {
151 unsigned short speed;
152 unsigned char width;
153 unsigned char is_pcix;
154 };
155
156 struct tp_params {
157 unsigned int pm_size;
158 unsigned int cm_size;
159 unsigned int pm_rx_base;
160 unsigned int pm_tx_base;
161 unsigned int pm_rx_pg_size;
162 unsigned int pm_tx_pg_size;
163 unsigned int pm_rx_num_pgs;
164 unsigned int pm_tx_num_pgs;
165 unsigned int rx_coalescing_size;
166 unsigned int use_5tuple_mode;
167 };
168
169 struct mc5_params {
170 unsigned int mode; /* selects MC5 width */
171 unsigned int nservers; /* size of server region */
172 unsigned int nroutes; /* size of routing region */
173 };
174
175 /* Default MC5 region sizes */
176 #define DEFAULT_SERVER_REGION_LEN 256
177 #define DEFAULT_RT_REGION_LEN 1024
178
179 struct adapter_params {
180 struct sge_params sge;
181 struct mc5_params mc5;
182 struct tp_params tp;
183 struct chelsio_pci_params pci;
184
185 const struct board_info *brd_info;
186
187 unsigned short mtus[NMTUS];
188 unsigned int nports; /* # of ethernet ports */
189 unsigned int stats_update_period;
190 unsigned short chip_revision;
191 unsigned char chip_version;
192 unsigned char is_asic;
193 unsigned char has_msi;
194 };
195
196 struct link_config {
197 unsigned int supported; /* link capabilities */
198 unsigned int advertising; /* advertised capabilities */
199 unsigned short requested_speed; /* speed user has requested */
200 unsigned short speed; /* actual link speed */
201 unsigned char requested_duplex; /* duplex user has requested */
202 unsigned char duplex; /* actual link duplex */
203 unsigned char requested_fc; /* flow control user has requested */
204 unsigned char fc; /* actual link flow control */
205 unsigned char autoneg; /* autonegotiating? */
206 };
207
208 struct cmac;
209 struct cphy;
210
211 struct port_info {
212 struct net_device *dev;
213 struct cmac *mac;
214 struct cphy *phy;
215 struct link_config link_config;
216 };
217
218 struct sge;
219 struct peespi;
220
221 struct adapter {
222 u8 __iomem *regs;
223 struct pci_dev *pdev;
224 unsigned long registered_device_map;
225 unsigned long open_device_map;
226 unsigned long flags;
227
228 const char *name;
229 int msg_enable;
230 u32 mmio_len;
231
232 struct adapter_params params;
233
234 /* Terminator modules. */
235 struct sge *sge;
236 struct peespi *espi;
237 struct petp *tp;
238
239 struct napi_struct napi;
240 struct port_info port[MAX_NPORTS];
241 struct delayed_work stats_update_task;
242 struct timer_list stats_update_timer;
243
244 spinlock_t tpi_lock;
245 spinlock_t work_lock;
246 spinlock_t mac_lock;
247
248 /* guards async operations */
249 spinlock_t async_lock ____cacheline_aligned;
250 u32 pending_thread_intr;
251 u32 slow_intr_mask;
252 int t1powersave;
253 };
254
255 enum { /* adapter flags */
256 FULL_INIT_DONE = 1 << 0,
257 };
258
259 struct mdio_ops;
260 struct gmac;
261 struct gphy;
262
263 struct board_info {
264 unsigned char board;
265 unsigned char port_number;
266 unsigned long caps;
267 unsigned char chip_term;
268 unsigned char chip_mac;
269 unsigned char chip_phy;
270 unsigned int clock_core;
271 unsigned int clock_mc3;
272 unsigned int clock_mc4;
273 unsigned int espi_nports;
274 unsigned int clock_elmer0;
275 unsigned char mdio_mdien;
276 unsigned char mdio_mdiinv;
277 unsigned char mdio_mdc;
278 unsigned char mdio_phybaseaddr;
279 const struct gmac *gmac;
280 const struct gphy *gphy;
281 const struct mdio_ops *mdio_ops;
282 const char *desc;
283 };
284
t1_is_asic(const adapter_t * adapter)285 static inline int t1_is_asic(const adapter_t *adapter)
286 {
287 return adapter->params.is_asic;
288 }
289
290 extern const struct pci_device_id t1_pci_tbl[];
291
adapter_matches_type(const adapter_t * adapter,int version,int revision)292 static inline int adapter_matches_type(const adapter_t *adapter,
293 int version, int revision)
294 {
295 return adapter->params.chip_version == version &&
296 adapter->params.chip_revision == revision;
297 }
298
299 #define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
300 #define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
301
302 /* Returns true if an adapter supports VLAN acceleration and TSO */
vlan_tso_capable(const adapter_t * adapter)303 static inline int vlan_tso_capable(const adapter_t *adapter)
304 {
305 return !t1_is_T1B(adapter);
306 }
307
308 #define for_each_port(adapter, iter) \
309 for (iter = 0; iter < (adapter)->params.nports; ++iter)
310
311 #define board_info(adapter) ((adapter)->params.brd_info)
312 #define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
313
core_ticks_per_usec(const adapter_t * adap)314 static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
315 {
316 return board_info(adap)->clock_core / 1000000;
317 }
318
319 int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
320 int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
321 int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
322 int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
323
324 void t1_interrupts_enable(adapter_t *adapter);
325 void t1_interrupts_disable(adapter_t *adapter);
326 void t1_interrupts_clear(adapter_t *adapter);
327 int t1_elmer0_ext_intr_handler(adapter_t *adapter);
328 irqreturn_t t1_slow_intr_handler(adapter_t *adapter);
329
330 int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
331 const struct board_info *t1_get_board_info(unsigned int board_id);
332 const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
333 unsigned short ssid);
334 int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
335 int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
336 struct adapter_params *p);
337 int t1_init_hw_modules(adapter_t *adapter);
338 int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
339 void t1_free_sw_modules(adapter_t *adapter);
340 void t1_link_changed(adapter_t *adapter, int port_id);
341 void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
342 int speed, int duplex, int pause);
343 #endif /* _CXGB_COMMON_H_ */
344