1 /*****************************************************************************
2 * *
3 * File: common.h *
4 * $Revision: 1.21 $ *
5 * $Date: 2005/06/22 00:43:25 $ *
6 * Description: *
7 * part of the Chelsio 10Gb Ethernet Driver. *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License, version 2, as *
11 * published by the Free Software Foundation. *
12 * *
13 * You should have received a copy of the GNU General Public License along *
14 * with this program; if not, write to the Free Software Foundation, Inc., *
15 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
16 * *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
20 * *
21 * http://www.chelsio.com *
22 * *
23 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
24 * All rights reserved. *
25 * *
26 * Maintainers: maintainers@chelsio.com *
27 * *
28 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
29 * Tina Yang <tainay@chelsio.com> *
30 * Felix Marti <felix@chelsio.com> *
31 * Scott Bardone <sbardone@chelsio.com> *
32 * Kurt Ottaway <kottaway@chelsio.com> *
33 * Frank DiMambro <frank@chelsio.com> *
34 * *
35 * History: *
36 * *
37 ****************************************************************************/
38
39 #define pr_fmt(fmt) "cxgb: " fmt
40
41 #ifndef _CXGB_COMMON_H_
42 #define _CXGB_COMMON_H_
43
44 #include <linux/module.h>
45 #include <linux/netdevice.h>
46 #include <linux/types.h>
47 #include <linux/delay.h>
48 #include <linux/pci.h>
49 #include <linux/ethtool.h>
50 #include <linux/if_vlan.h>
51 #include <linux/mdio.h>
52 #include <linux/crc32.h>
53 #include <linux/init.h>
54 #include <linux/slab.h>
55 #include <asm/io.h>
56 #include <linux/pci_ids.h>
57
58 #define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
59 #define DRV_NAME "cxgb"
60 #define DRV_VERSION "2.2"
61
62 #define CH_DEVICE(devid, ssid, idx) \
63 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
64
65 #define SUPPORTED_PAUSE (1 << 13)
66 #define SUPPORTED_LOOPBACK (1 << 15)
67
68 #define ADVERTISED_PAUSE (1 << 13)
69 #define ADVERTISED_ASYM_PAUSE (1 << 14)
70
71 typedef struct adapter adapter_t;
72
73 struct t1_rx_mode {
74 struct net_device *dev;
75 };
76
77 #define t1_rx_mode_promisc(rm) (rm->dev->flags & IFF_PROMISC)
78 #define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
79 #define t1_rx_mode_mc_cnt(rm) (netdev_mc_count(rm->dev))
80 #define t1_get_netdev(rm) (rm->dev)
81
82 #define MAX_NPORTS 4
83 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
84 #define NMTUS 8
85 #define TCB_SIZE 128
86
87 #define SPEED_INVALID 0xffff
88 #define DUPLEX_INVALID 0xff
89
90 enum {
91 CHBT_BOARD_N110,
92 CHBT_BOARD_N210,
93 CHBT_BOARD_7500,
94 CHBT_BOARD_8000,
95 CHBT_BOARD_CHT101,
96 CHBT_BOARD_CHT110,
97 CHBT_BOARD_CHT210,
98 CHBT_BOARD_CHT204,
99 CHBT_BOARD_CHT204V,
100 CHBT_BOARD_CHT204E,
101 CHBT_BOARD_CHN204,
102 CHBT_BOARD_COUGAR,
103 CHBT_BOARD_6800,
104 CHBT_BOARD_SIMUL,
105 };
106
107 enum {
108 CHBT_TERM_FPGA,
109 CHBT_TERM_T1,
110 CHBT_TERM_T2,
111 CHBT_TERM_T3
112 };
113
114 enum {
115 CHBT_MAC_CHELSIO_A,
116 CHBT_MAC_IXF1010,
117 CHBT_MAC_PM3393,
118 CHBT_MAC_VSC7321,
119 CHBT_MAC_DUMMY
120 };
121
122 enum {
123 CHBT_PHY_88E1041,
124 CHBT_PHY_88E1111,
125 CHBT_PHY_88X2010,
126 CHBT_PHY_XPAK,
127 CHBT_PHY_MY3126,
128 CHBT_PHY_8244,
129 CHBT_PHY_DUMMY
130 };
131
132 enum {
133 PAUSE_RX = 1 << 0,
134 PAUSE_TX = 1 << 1,
135 PAUSE_AUTONEG = 1 << 2
136 };
137
138 /* Revisions of T1 chip */
139 enum {
140 TERM_T1A = 0,
141 TERM_T1B = 1,
142 TERM_T2 = 3
143 };
144
145 struct sge_params {
146 unsigned int cmdQ_size[2];
147 unsigned int freelQ_size[2];
148 unsigned int large_buf_capacity;
149 unsigned int rx_coalesce_usecs;
150 unsigned int last_rx_coalesce_raw;
151 unsigned int default_rx_coalesce_usecs;
152 unsigned int sample_interval_usecs;
153 unsigned int coalesce_enable;
154 unsigned int polling;
155 };
156
157 struct chelsio_pci_params {
158 unsigned short speed;
159 unsigned char width;
160 unsigned char is_pcix;
161 };
162
163 struct tp_params {
164 unsigned int pm_size;
165 unsigned int cm_size;
166 unsigned int pm_rx_base;
167 unsigned int pm_tx_base;
168 unsigned int pm_rx_pg_size;
169 unsigned int pm_tx_pg_size;
170 unsigned int pm_rx_num_pgs;
171 unsigned int pm_tx_num_pgs;
172 unsigned int rx_coalescing_size;
173 unsigned int use_5tuple_mode;
174 };
175
176 struct mc5_params {
177 unsigned int mode; /* selects MC5 width */
178 unsigned int nservers; /* size of server region */
179 unsigned int nroutes; /* size of routing region */
180 };
181
182 /* Default MC5 region sizes */
183 #define DEFAULT_SERVER_REGION_LEN 256
184 #define DEFAULT_RT_REGION_LEN 1024
185
186 struct adapter_params {
187 struct sge_params sge;
188 struct mc5_params mc5;
189 struct tp_params tp;
190 struct chelsio_pci_params pci;
191
192 const struct board_info *brd_info;
193
194 unsigned short mtus[NMTUS];
195 unsigned int nports; /* # of ethernet ports */
196 unsigned int stats_update_period;
197 unsigned short chip_revision;
198 unsigned char chip_version;
199 unsigned char is_asic;
200 unsigned char has_msi;
201 };
202
203 struct link_config {
204 unsigned int supported; /* link capabilities */
205 unsigned int advertising; /* advertised capabilities */
206 unsigned short requested_speed; /* speed user has requested */
207 unsigned short speed; /* actual link speed */
208 unsigned char requested_duplex; /* duplex user has requested */
209 unsigned char duplex; /* actual link duplex */
210 unsigned char requested_fc; /* flow control user has requested */
211 unsigned char fc; /* actual link flow control */
212 unsigned char autoneg; /* autonegotiating? */
213 };
214
215 struct cmac;
216 struct cphy;
217
218 struct port_info {
219 struct net_device *dev;
220 struct cmac *mac;
221 struct cphy *phy;
222 struct link_config link_config;
223 struct net_device_stats netstats;
224 };
225
226 struct sge;
227 struct peespi;
228
229 struct adapter {
230 u8 __iomem *regs;
231 struct pci_dev *pdev;
232 unsigned long registered_device_map;
233 unsigned long open_device_map;
234 unsigned long flags;
235
236 const char *name;
237 int msg_enable;
238 u32 mmio_len;
239
240 struct work_struct ext_intr_handler_task;
241 struct adapter_params params;
242
243 struct vlan_group *vlan_grp;
244
245 /* Terminator modules. */
246 struct sge *sge;
247 struct peespi *espi;
248 struct petp *tp;
249
250 struct napi_struct napi;
251 struct port_info port[MAX_NPORTS];
252 struct delayed_work stats_update_task;
253 struct timer_list stats_update_timer;
254
255 spinlock_t tpi_lock;
256 spinlock_t work_lock;
257 spinlock_t mac_lock;
258
259 /* guards async operations */
260 spinlock_t async_lock ____cacheline_aligned;
261 u32 slow_intr_mask;
262 int t1powersave;
263 };
264
265 enum { /* adapter flags */
266 FULL_INIT_DONE = 1 << 0,
267 TSO_CAPABLE = 1 << 2,
268 TCP_CSUM_CAPABLE = 1 << 3,
269 UDP_CSUM_CAPABLE = 1 << 4,
270 VLAN_ACCEL_CAPABLE = 1 << 5,
271 RX_CSUM_ENABLED = 1 << 6,
272 };
273
274 struct mdio_ops;
275 struct gmac;
276 struct gphy;
277
278 struct board_info {
279 unsigned char board;
280 unsigned char port_number;
281 unsigned long caps;
282 unsigned char chip_term;
283 unsigned char chip_mac;
284 unsigned char chip_phy;
285 unsigned int clock_core;
286 unsigned int clock_mc3;
287 unsigned int clock_mc4;
288 unsigned int espi_nports;
289 unsigned int clock_elmer0;
290 unsigned char mdio_mdien;
291 unsigned char mdio_mdiinv;
292 unsigned char mdio_mdc;
293 unsigned char mdio_phybaseaddr;
294 const struct gmac *gmac;
295 const struct gphy *gphy;
296 const struct mdio_ops *mdio_ops;
297 const char *desc;
298 };
299
t1_is_asic(const adapter_t * adapter)300 static inline int t1_is_asic(const adapter_t *adapter)
301 {
302 return adapter->params.is_asic;
303 }
304
305 extern const struct pci_device_id t1_pci_tbl[];
306
adapter_matches_type(const adapter_t * adapter,int version,int revision)307 static inline int adapter_matches_type(const adapter_t *adapter,
308 int version, int revision)
309 {
310 return adapter->params.chip_version == version &&
311 adapter->params.chip_revision == revision;
312 }
313
314 #define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
315 #define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
316
317 /* Returns true if an adapter supports VLAN acceleration and TSO */
vlan_tso_capable(const adapter_t * adapter)318 static inline int vlan_tso_capable(const adapter_t *adapter)
319 {
320 return !t1_is_T1B(adapter);
321 }
322
323 #define for_each_port(adapter, iter) \
324 for (iter = 0; iter < (adapter)->params.nports; ++iter)
325
326 #define board_info(adapter) ((adapter)->params.brd_info)
327 #define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
328
core_ticks_per_usec(const adapter_t * adap)329 static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
330 {
331 return board_info(adap)->clock_core / 1000000;
332 }
333
334 extern int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
335 extern int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
336 extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
337 extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
338
339 extern void t1_interrupts_enable(adapter_t *adapter);
340 extern void t1_interrupts_disable(adapter_t *adapter);
341 extern void t1_interrupts_clear(adapter_t *adapter);
342 extern int t1_elmer0_ext_intr_handler(adapter_t *adapter);
343 extern void t1_elmer0_ext_intr(adapter_t *adapter);
344 extern int t1_slow_intr_handler(adapter_t *adapter);
345
346 extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
347 extern const struct board_info *t1_get_board_info(unsigned int board_id);
348 extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
349 unsigned short ssid);
350 extern int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
351 extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
352 struct adapter_params *p);
353 extern int t1_init_hw_modules(adapter_t *adapter);
354 extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
355 extern void t1_free_sw_modules(adapter_t *adapter);
356 extern void t1_fatal_err(adapter_t *adapter);
357 extern void t1_link_changed(adapter_t *adapter, int port_id);
358 extern void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
359 int speed, int duplex, int pause);
360 #endif /* _CXGB_COMMON_H_ */
361