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Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization"
[pv_ops_mirror.git] / drivers / net / chelsio / common.h
blob8ba702c8b560c8b9cab8816e9f60f7e07a0c7bc0
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 #ifndef _CXGB_COMMON_H_
40 #define _CXGB_COMMON_H_
41
42 #include <linux/module.h>
43 #include <linux/netdevice.h>
44 #include <linux/types.h>
45 #include <linux/delay.h>
46 #include <linux/pci.h>
47 #include <linux/ethtool.h>
48 #include <linux/if_vlan.h>
49 #include <linux/mii.h>
50 #include <linux/crc32.h>
51 #include <linux/init.h>
52 #include <asm/io.h>
53 #include <linux/pci_ids.h>
54
55 #define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
56 #define DRV_NAME "cxgb"
57 #define DRV_VERSION "2.2"
58 #define PFX DRV_NAME ": "
59
60 #define CH_ERR(fmt, ...) printk(KERN_ERR PFX fmt, ## __VA_ARGS__)
61 #define CH_WARN(fmt, ...) printk(KERN_WARNING PFX fmt, ## __VA_ARGS__)
62 #define CH_ALERT(fmt, ...) printk(KERN_ALERT PFX fmt, ## __VA_ARGS__)
63
64 /*
65 * More powerful macro that selectively prints messages based on msg_enable.
66 * For info and debugging messages.
67 */
68 #define CH_MSG(adapter, level, category, fmt, ...) do { \
69 if ((adapter)->msg_enable & NETIF_MSG_##category) \
70 printk(KERN_##level PFX "%s: " fmt, (adapter)->name, \
71 ## __VA_ARGS__); \
72 } while (0)
73
74 #ifdef DEBUG
75 # define CH_DBG(adapter, category, fmt, ...) \
76 CH_MSG(adapter, DEBUG, category, fmt, ## __VA_ARGS__)
77 #else
78 # define CH_DBG(fmt, ...)
79 #endif
80
81 #define CH_DEVICE(devid, ssid, idx) \
82 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
83
84 #define SUPPORTED_PAUSE (1 << 13)
85 #define SUPPORTED_LOOPBACK (1 << 15)
86
87 #define ADVERTISED_PAUSE (1 << 13)
88 #define ADVERTISED_ASYM_PAUSE (1 << 14)
89
90 typedef struct adapter adapter_t;
91
92 struct t1_rx_mode {
93 struct net_device *dev;
94 u32 idx;
95 struct dev_mc_list *list;
96 };
97
98 #define t1_rx_mode_promisc(rm) (rm->dev->flags & IFF_PROMISC)
99 #define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
100 #define t1_rx_mode_mc_cnt(rm) (rm->dev->mc_count)
101
102 static inline u8 *t1_get_next_mcaddr(struct t1_rx_mode *rm)
103 {
104 u8 *addr = NULL;
105
106 if (rm->idx++ < rm->dev->mc_count) {
107 addr = rm->list->dmi_addr;
108 rm->list = rm->list->next;
109 }
110 return addr;
111 }
112
113 #define MAX_NPORTS 4
114 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
115 #define NMTUS 8
116 #define TCB_SIZE 128
117
118 #define SPEED_INVALID 0xffff
119 #define DUPLEX_INVALID 0xff
120
121 enum {
122 CHBT_BOARD_N110,
123 CHBT_BOARD_N210,
124 CHBT_BOARD_7500,
125 CHBT_BOARD_8000,
126 CHBT_BOARD_CHT101,
127 CHBT_BOARD_CHT110,
128 CHBT_BOARD_CHT210,
129 CHBT_BOARD_CHT204,
130 CHBT_BOARD_CHT204V,
131 CHBT_BOARD_CHT204E,
132 CHBT_BOARD_CHN204,
133 CHBT_BOARD_COUGAR,
134 CHBT_BOARD_6800,
135 CHBT_BOARD_SIMUL,
136 };
137
138 enum {
139 CHBT_TERM_FPGA,
140 CHBT_TERM_T1,
141 CHBT_TERM_T2,
142 CHBT_TERM_T3
143 };
144
145 enum {
146 CHBT_MAC_CHELSIO_A,
147 CHBT_MAC_IXF1010,
148 CHBT_MAC_PM3393,
149 CHBT_MAC_VSC7321,
150 CHBT_MAC_DUMMY
151 };
152
153 enum {
154 CHBT_PHY_88E1041,
155 CHBT_PHY_88E1111,
156 CHBT_PHY_88X2010,
157 CHBT_PHY_XPAK,
158 CHBT_PHY_MY3126,
159 CHBT_PHY_8244,
160 CHBT_PHY_DUMMY
161 };
162
163 enum {
164 PAUSE_RX = 1 << 0,
165 PAUSE_TX = 1 << 1,
166 PAUSE_AUTONEG = 1 << 2
167 };
168
169 /* Revisions of T1 chip */
170 enum {
171 TERM_T1A = 0,
172 TERM_T1B = 1,
173 TERM_T2 = 3
174 };
175
176 struct sge_params {
177 unsigned int cmdQ_size[2];
178 unsigned int freelQ_size[2];
179 unsigned int large_buf_capacity;
180 unsigned int rx_coalesce_usecs;
181 unsigned int last_rx_coalesce_raw;
182 unsigned int default_rx_coalesce_usecs;
183 unsigned int sample_interval_usecs;
184 unsigned int coalesce_enable;
185 unsigned int polling;
186 };
187
188 struct chelsio_pci_params {
189 unsigned short speed;
190 unsigned char width;
191 unsigned char is_pcix;
192 };
193
194 struct tp_params {
195 unsigned int pm_size;
196 unsigned int cm_size;
197 unsigned int pm_rx_base;
198 unsigned int pm_tx_base;
199 unsigned int pm_rx_pg_size;
200 unsigned int pm_tx_pg_size;
201 unsigned int pm_rx_num_pgs;
202 unsigned int pm_tx_num_pgs;
203 unsigned int rx_coalescing_size;
204 unsigned int use_5tuple_mode;
205 };
206
207 struct mc5_params {
208 unsigned int mode; /* selects MC5 width */
209 unsigned int nservers; /* size of server region */
210 unsigned int nroutes; /* size of routing region */
211 };
212
213 /* Default MC5 region sizes */
214 #define DEFAULT_SERVER_REGION_LEN 256
215 #define DEFAULT_RT_REGION_LEN 1024
216
217 struct adapter_params {
218 struct sge_params sge;
219 struct mc5_params mc5;
220 struct tp_params tp;
221 struct chelsio_pci_params pci;
222
223 const struct board_info *brd_info;
224
225 unsigned short mtus[NMTUS];
226 unsigned int nports; /* # of ethernet ports */
227 unsigned int stats_update_period;
228 unsigned short chip_revision;
229 unsigned char chip_version;
230 unsigned char is_asic;
231 unsigned char has_msi;
232 };
233
234 struct link_config {
235 unsigned int supported; /* link capabilities */
236 unsigned int advertising; /* advertised capabilities */
237 unsigned short requested_speed; /* speed user has requested */
238 unsigned short speed; /* actual link speed */
239 unsigned char requested_duplex; /* duplex user has requested */
240 unsigned char duplex; /* actual link duplex */
241 unsigned char requested_fc; /* flow control user has requested */
242 unsigned char fc; /* actual link flow control */
243 unsigned char autoneg; /* autonegotiating? */
244 };
245
246 struct cmac;
247 struct cphy;
248
249 struct port_info {
250 struct net_device *dev;
251 struct cmac *mac;
252 struct cphy *phy;
253 struct link_config link_config;
254 struct net_device_stats netstats;
255 };
256
257 struct sge;
258 struct peespi;
259
260 struct adapter {
261 u8 __iomem *regs;
262 struct pci_dev *pdev;
263 unsigned long registered_device_map;
264 unsigned long open_device_map;
265 unsigned long flags;
266
267 const char *name;
268 int msg_enable;
269 u32 mmio_len;
270
271 struct work_struct ext_intr_handler_task;
272 struct adapter_params params;
273
274 struct vlan_group *vlan_grp;
275
276 /* Terminator modules. */
277 struct sge *sge;
278 struct peespi *espi;
279 struct petp *tp;
280
281 struct port_info port[MAX_NPORTS];
282 struct delayed_work stats_update_task;
283 struct timer_list stats_update_timer;
284
285 spinlock_t tpi_lock;
286 spinlock_t work_lock;
287 spinlock_t mac_lock;
288
289 /* guards async operations */
290 spinlock_t async_lock ____cacheline_aligned;
291 u32 slow_intr_mask;
292 int t1powersave;
293 };
294
295 enum { /* adapter flags */
296 FULL_INIT_DONE = 1 << 0,
297 TSO_CAPABLE = 1 << 2,
298 TCP_CSUM_CAPABLE = 1 << 3,
299 UDP_CSUM_CAPABLE = 1 << 4,
300 VLAN_ACCEL_CAPABLE = 1 << 5,
301 RX_CSUM_ENABLED = 1 << 6,
302 };
303
304 struct mdio_ops;
305 struct gmac;
306 struct gphy;
307
308 struct board_info {
309 unsigned char board;
310 unsigned char port_number;
311 unsigned long caps;
312 unsigned char chip_term;
313 unsigned char chip_mac;
314 unsigned char chip_phy;
315 unsigned int clock_core;
316 unsigned int clock_mc3;
317 unsigned int clock_mc4;
318 unsigned int espi_nports;
319 unsigned int clock_cspi;
320 unsigned int clock_elmer0;
321 unsigned char mdio_mdien;
322 unsigned char mdio_mdiinv;
323 unsigned char mdio_mdc;
324 unsigned char mdio_phybaseaddr;
325 const struct gmac *gmac;
326 const struct gphy *gphy;
327 const struct mdio_ops *mdio_ops;
328 const char *desc;
329 };
330
331 static inline int t1_is_asic(const adapter_t *adapter)
332 {
333 return adapter->params.is_asic;
334 }
335
336 extern struct pci_device_id t1_pci_tbl[];
337
338 static inline int adapter_matches_type(const adapter_t *adapter,
339 int version, int revision)
340 {
341 return adapter->params.chip_version == version &&
342 adapter->params.chip_revision == revision;
343 }
344
345 #define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
346 #define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
347
348 /* Returns true if an adapter supports VLAN acceleration and TSO */
349 static inline int vlan_tso_capable(const adapter_t *adapter)
350 {
351 return !t1_is_T1B(adapter);
352 }
353
354 #define for_each_port(adapter, iter) \
355 for (iter = 0; iter < (adapter)->params.nports; ++iter)
356
357 #define board_info(adapter) ((adapter)->params.brd_info)
358 #define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
359
360 static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
361 {
362 return board_info(adap)->clock_core / 1000000;
363 }
364
365 extern int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
366 extern int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
367 extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
368 extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
369
370 extern void t1_interrupts_enable(adapter_t *adapter);
371 extern void t1_interrupts_disable(adapter_t *adapter);
372 extern void t1_interrupts_clear(adapter_t *adapter);
373 extern int t1_elmer0_ext_intr_handler(adapter_t *adapter);
374 extern int t1_slow_intr_handler(adapter_t *adapter);
375
376 extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
377 extern const struct board_info *t1_get_board_info(unsigned int board_id);
378 extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
379 unsigned short ssid);
380 extern int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data);
381 extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
382 struct adapter_params *p);
383 extern int t1_init_hw_modules(adapter_t *adapter);
384 extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
385 extern void t1_free_sw_modules(adapter_t *adapter);
386 extern void t1_fatal_err(adapter_t *adapter);
387 extern void t1_link_changed(adapter_t *adapter, int port_id);
388 extern void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
389 int speed, int duplex, int pause);
390 #endif /* _CXGB_COMMON_H_ */
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