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staging: rtl8188eu: Replace function name in string with __func__
[linux/fpc-iii.git] / drivers / net / ethernet / broadcom / bnx2.c
blob5e34b34f77405a7225b814a7f4696882e7fee8ff
1 /* bnx2.c: QLogic bnx2 network driver.
2 *
3 * Copyright (c) 2004-2014 Broadcom Corporation
4 * Copyright (c) 2014-2015 QLogic Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
9 *
10 * Written by: Michael Chan (mchan@broadcom.com)
11 */
12
13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14
15 #include <linux/module.h>
16 #include <linux/moduleparam.h>
17
18 #include <linux/stringify.h>
19 #include <linux/kernel.h>
20 #include <linux/timer.h>
21 #include <linux/errno.h>
22 #include <linux/ioport.h>
23 #include <linux/slab.h>
24 #include <linux/vmalloc.h>
25 #include <linux/interrupt.h>
26 #include <linux/pci.h>
27 #include <linux/netdevice.h>
28 #include <linux/etherdevice.h>
29 #include <linux/skbuff.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/bitops.h>
32 #include <asm/io.h>
33 #include <asm/irq.h>
34 #include <linux/delay.h>
35 #include <asm/byteorder.h>
36 #include <asm/page.h>
37 #include <linux/time.h>
38 #include <linux/ethtool.h>
39 #include <linux/mii.h>
40 #include <linux/if.h>
41 #include <linux/if_vlan.h>
42 #include <net/ip.h>
43 #include <net/tcp.h>
44 #include <net/checksum.h>
45 #include <linux/workqueue.h>
46 #include <linux/crc32.h>
47 #include <linux/prefetch.h>
48 #include <linux/cache.h>
49 #include <linux/firmware.h>
50 #include <linux/log2.h>
51 #include <linux/aer.h>
52 #include <linux/crash_dump.h>
53
54 #if IS_ENABLED(CONFIG_CNIC)
55 #define BCM_CNIC 1
56 #include "cnic_if.h"
57 #endif
58 #include "bnx2.h"
59 #include "bnx2_fw.h"
60
61 #define DRV_MODULE_NAME "bnx2"
62 #define DRV_MODULE_VERSION "2.2.6"
63 #define DRV_MODULE_RELDATE "January 29, 2014"
64 #define FW_MIPS_FILE_06 "bnx2/bnx2-mips-06-6.2.3.fw"
65 #define FW_RV2P_FILE_06 "bnx2/bnx2-rv2p-06-6.0.15.fw"
66 #define FW_MIPS_FILE_09 "bnx2/bnx2-mips-09-6.2.1b.fw"
67 #define FW_RV2P_FILE_09_Ax "bnx2/bnx2-rv2p-09ax-6.0.17.fw"
68 #define FW_RV2P_FILE_09 "bnx2/bnx2-rv2p-09-6.0.17.fw"
69
70 #define RUN_AT(x) (jiffies + (x))
71
72 /* Time in jiffies before concluding the transmitter is hung. */
73 #define TX_TIMEOUT (5*HZ)
74
75 static char version[] =
76 "QLogic " DRV_MODULE_NAME " Gigabit Ethernet Driver v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
77
78 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com>");
79 MODULE_DESCRIPTION("QLogic BCM5706/5708/5709/5716 Driver");
80 MODULE_LICENSE("GPL");
81 MODULE_VERSION(DRV_MODULE_VERSION);
82 MODULE_FIRMWARE(FW_MIPS_FILE_06);
83 MODULE_FIRMWARE(FW_RV2P_FILE_06);
84 MODULE_FIRMWARE(FW_MIPS_FILE_09);
85 MODULE_FIRMWARE(FW_RV2P_FILE_09);
86 MODULE_FIRMWARE(FW_RV2P_FILE_09_Ax);
87
88 static int disable_msi = 0;
89
90 module_param(disable_msi, int, S_IRUGO);
91 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
92
93 typedef enum {
94 BCM5706 = 0,
95 NC370T,
96 NC370I,
97 BCM5706S,
98 NC370F,
99 BCM5708,
100 BCM5708S,
101 BCM5709,
102 BCM5709S,
103 BCM5716,
104 BCM5716S,
105 } board_t;
106
107 /* indexed by board_t, above */
108 static struct {
109 char *name;
110 } board_info[] = {
111 { "Broadcom NetXtreme II BCM5706 1000Base-T" },
112 { "HP NC370T Multifunction Gigabit Server Adapter" },
113 { "HP NC370i Multifunction Gigabit Server Adapter" },
114 { "Broadcom NetXtreme II BCM5706 1000Base-SX" },
115 { "HP NC370F Multifunction Gigabit Server Adapter" },
116 { "Broadcom NetXtreme II BCM5708 1000Base-T" },
117 { "Broadcom NetXtreme II BCM5708 1000Base-SX" },
118 { "Broadcom NetXtreme II BCM5709 1000Base-T" },
119 { "Broadcom NetXtreme II BCM5709 1000Base-SX" },
120 { "Broadcom NetXtreme II BCM5716 1000Base-T" },
121 { "Broadcom NetXtreme II BCM5716 1000Base-SX" },
122 };
123
124 static const struct pci_device_id bnx2_pci_tbl[] = {
125 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
126 PCI_VENDOR_ID_HP, 0x3101, 0, 0, NC370T },
127 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
128 PCI_VENDOR_ID_HP, 0x3106, 0, 0, NC370I },
129 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
130 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706 },
131 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708,
132 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708 },
133 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,
134 PCI_VENDOR_ID_HP, 0x3102, 0, 0, NC370F },
135 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,
136 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706S },
137 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708S,
138 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708S },
139 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709,
140 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709 },
141 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709S,
142 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709S },
143 { PCI_VENDOR_ID_BROADCOM, 0x163b,
144 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716 },
145 { PCI_VENDOR_ID_BROADCOM, 0x163c,
146 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716S },
147 { 0, }
148 };
149
150 static const struct flash_spec flash_table[] =
151 {
152 #define BUFFERED_FLAGS (BNX2_NV_BUFFERED | BNX2_NV_TRANSLATE)
153 #define NONBUFFERED_FLAGS (BNX2_NV_WREN)
154 /* Slow EEPROM */
155 {0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400,
156 BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
157 SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
158 "EEPROM - slow"},
159 /* Expansion entry 0001 */
160 {0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406,
161 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
162 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
163 "Entry 0001"},
164 /* Saifun SA25F010 (non-buffered flash) */
165 /* strap, cfg1, & write1 need updates */
166 {0x04000001, 0x47808201, 0x00050081, 0x03840253, 0xaf020406,
167 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
168 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*2,
169 "Non-buffered flash (128kB)"},
170 /* Saifun SA25F020 (non-buffered flash) */
171 /* strap, cfg1, & write1 need updates */
172 {0x0c000003, 0x4f808201, 0x00050081, 0x03840253, 0xaf020406,
173 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
174 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*4,
175 "Non-buffered flash (256kB)"},
176 /* Expansion entry 0100 */
177 {0x11000000, 0x53808201, 0x00050081, 0x03840253, 0xaf020406,
178 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
179 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
180 "Entry 0100"},
181 /* Entry 0101: ST M45PE10 (non-buffered flash, TetonII B0) */
182 {0x19000002, 0x5b808201, 0x000500db, 0x03840253, 0xaf020406,
183 NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
184 ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*2,
185 "Entry 0101: ST M45PE10 (128kB non-bufferred)"},
186 /* Entry 0110: ST M45PE20 (non-buffered flash)*/
187 {0x15000001, 0x57808201, 0x000500db, 0x03840253, 0xaf020406,
188 NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
189 ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*4,
190 "Entry 0110: ST M45PE20 (256kB non-bufferred)"},
191 /* Saifun SA25F005 (non-buffered flash) */
192 /* strap, cfg1, & write1 need updates */
193 {0x1d000003, 0x5f808201, 0x00050081, 0x03840253, 0xaf020406,
194 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
195 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE,
196 "Non-buffered flash (64kB)"},
197 /* Fast EEPROM */
198 {0x22000000, 0x62808380, 0x009f0081, 0xa184a053, 0xaf000400,
199 BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
200 SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
201 "EEPROM - fast"},
202 /* Expansion entry 1001 */
203 {0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406,
204 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
205 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
206 "Entry 1001"},
207 /* Expansion entry 1010 */
208 {0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406,
209 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
210 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
211 "Entry 1010"},
212 /* ATMEL AT45DB011B (buffered flash) */
213 {0x2e000003, 0x6e808273, 0x00570081, 0x68848353, 0xaf000400,
214 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
215 BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE,
216 "Buffered flash (128kB)"},
217 /* Expansion entry 1100 */
218 {0x33000000, 0x73808201, 0x00050081, 0x03840253, 0xaf020406,
219 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
220 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
221 "Entry 1100"},
222 /* Expansion entry 1101 */
223 {0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406,
224 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
225 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
226 "Entry 1101"},
227 /* Ateml Expansion entry 1110 */
228 {0x37000001, 0x76808273, 0x00570081, 0x68848353, 0xaf000400,
229 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
230 BUFFERED_FLASH_BYTE_ADDR_MASK, 0,
231 "Entry 1110 (Atmel)"},
232 /* ATMEL AT45DB021B (buffered flash) */
233 {0x3f000003, 0x7e808273, 0x00570081, 0x68848353, 0xaf000400,
234 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
235 BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2,
236 "Buffered flash (256kB)"},
237 };
238
239 static const struct flash_spec flash_5709 = {
240 .flags = BNX2_NV_BUFFERED,
241 .page_bits = BCM5709_FLASH_PAGE_BITS,
242 .page_size = BCM5709_FLASH_PAGE_SIZE,
243 .addr_mask = BCM5709_FLASH_BYTE_ADDR_MASK,
244 .total_size = BUFFERED_FLASH_TOTAL_SIZE*2,
245 .name = "5709 Buffered flash (256kB)",
246 };
247
248 MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);
249
250 static void bnx2_init_napi(struct bnx2 *bp);
251 static void bnx2_del_napi(struct bnx2 *bp);
252
253 static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr)
254 {
255 u32 diff;
256
257 /* The ring uses 256 indices for 255 entries, one of them
258 * needs to be skipped.
259 */
260 diff = READ_ONCE(txr->tx_prod) - READ_ONCE(txr->tx_cons);
261 if (unlikely(diff >= BNX2_TX_DESC_CNT)) {
262 diff &= 0xffff;
263 if (diff == BNX2_TX_DESC_CNT)
264 diff = BNX2_MAX_TX_DESC_CNT;
265 }
266 return bp->tx_ring_size - diff;
267 }
268
269 static u32
270 bnx2_reg_rd_ind(struct bnx2 *bp, u32 offset)
271 {
272 unsigned long flags;
273 u32 val;
274
275 spin_lock_irqsave(&bp->indirect_lock, flags);
276 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
277 val = BNX2_RD(bp, BNX2_PCICFG_REG_WINDOW);
278 spin_unlock_irqrestore(&bp->indirect_lock, flags);
279 return val;
280 }
281
282 static void
283 bnx2_reg_wr_ind(struct bnx2 *bp, u32 offset, u32 val)
284 {
285 unsigned long flags;
286
287 spin_lock_irqsave(&bp->indirect_lock, flags);
288 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
289 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, val);
290 spin_unlock_irqrestore(&bp->indirect_lock, flags);
291 }
292
293 static void
294 bnx2_shmem_wr(struct bnx2 *bp, u32 offset, u32 val)
295 {
296 bnx2_reg_wr_ind(bp, bp->shmem_base + offset, val);
297 }
298
299 static u32
300 bnx2_shmem_rd(struct bnx2 *bp, u32 offset)
301 {
302 return bnx2_reg_rd_ind(bp, bp->shmem_base + offset);
303 }
304
305 static void
306 bnx2_ctx_wr(struct bnx2 *bp, u32 cid_addr, u32 offset, u32 val)
307 {
308 unsigned long flags;
309
310 offset += cid_addr;
311 spin_lock_irqsave(&bp->indirect_lock, flags);
312 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
313 int i;
314
315 BNX2_WR(bp, BNX2_CTX_CTX_DATA, val);
316 BNX2_WR(bp, BNX2_CTX_CTX_CTRL,
317 offset | BNX2_CTX_CTX_CTRL_WRITE_REQ);
318 for (i = 0; i < 5; i++) {
319 val = BNX2_RD(bp, BNX2_CTX_CTX_CTRL);
320 if ((val & BNX2_CTX_CTX_CTRL_WRITE_REQ) == 0)
321 break;
322 udelay(5);
323 }
324 } else {
325 BNX2_WR(bp, BNX2_CTX_DATA_ADR, offset);
326 BNX2_WR(bp, BNX2_CTX_DATA, val);
327 }
328 spin_unlock_irqrestore(&bp->indirect_lock, flags);
329 }
330
331 #ifdef BCM_CNIC
332 static int
333 bnx2_drv_ctl(struct net_device *dev, struct drv_ctl_info *info)
334 {
335 struct bnx2 *bp = netdev_priv(dev);
336 struct drv_ctl_io *io = &info->data.io;
337
338 switch (info->cmd) {
339 case DRV_CTL_IO_WR_CMD:
340 bnx2_reg_wr_ind(bp, io->offset, io->data);
341 break;
342 case DRV_CTL_IO_RD_CMD:
343 io->data = bnx2_reg_rd_ind(bp, io->offset);
344 break;
345 case DRV_CTL_CTX_WR_CMD:
346 bnx2_ctx_wr(bp, io->cid_addr, io->offset, io->data);
347 break;
348 default:
349 return -EINVAL;
350 }
351 return 0;
352 }
353
354 static void bnx2_setup_cnic_irq_info(struct bnx2 *bp)
355 {
356 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
357 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
358 int sb_id;
359
360 if (bp->flags & BNX2_FLAG_USING_MSIX) {
361 cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;
362 bnapi->cnic_present = 0;
363 sb_id = bp->irq_nvecs;
364 cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;
365 } else {
366 cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;
367 bnapi->cnic_tag = bnapi->last_status_idx;
368 bnapi->cnic_present = 1;
369 sb_id = 0;
370 cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;
371 }
372
373 cp->irq_arr[0].vector = bp->irq_tbl[sb_id].vector;
374 cp->irq_arr[0].status_blk = (void *)
375 ((unsigned long) bnapi->status_blk.msi +
376 (BNX2_SBLK_MSIX_ALIGN_SIZE * sb_id));
377 cp->irq_arr[0].status_blk_num = sb_id;
378 cp->num_irq = 1;
379 }
380
381 static int bnx2_register_cnic(struct net_device *dev, struct cnic_ops *ops,
382 void *data)
383 {
384 struct bnx2 *bp = netdev_priv(dev);
385 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
386
387 if (ops == NULL)
388 return -EINVAL;
389
390 if (cp->drv_state & CNIC_DRV_STATE_REGD)
391 return -EBUSY;
392
393 if (!bnx2_reg_rd_ind(bp, BNX2_FW_MAX_ISCSI_CONN))
394 return -ENODEV;
395
396 bp->cnic_data = data;
397 rcu_assign_pointer(bp->cnic_ops, ops);
398
399 cp->num_irq = 0;
400 cp->drv_state = CNIC_DRV_STATE_REGD;
401
402 bnx2_setup_cnic_irq_info(bp);
403
404 return 0;
405 }
406
407 static int bnx2_unregister_cnic(struct net_device *dev)
408 {
409 struct bnx2 *bp = netdev_priv(dev);
410 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
411 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
412
413 mutex_lock(&bp->cnic_lock);
414 cp->drv_state = 0;
415 bnapi->cnic_present = 0;
416 RCU_INIT_POINTER(bp->cnic_ops, NULL);
417 mutex_unlock(&bp->cnic_lock);
418 synchronize_rcu();
419 return 0;
420 }
421
422 static struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev)
423 {
424 struct bnx2 *bp = netdev_priv(dev);
425 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
426
427 if (!cp->max_iscsi_conn)
428 return NULL;
429
430 cp->drv_owner = THIS_MODULE;
431 cp->chip_id = bp->chip_id;
432 cp->pdev = bp->pdev;
433 cp->io_base = bp->regview;
434 cp->drv_ctl = bnx2_drv_ctl;
435 cp->drv_register_cnic = bnx2_register_cnic;
436 cp->drv_unregister_cnic = bnx2_unregister_cnic;
437
438 return cp;
439 }
440
441 static void
442 bnx2_cnic_stop(struct bnx2 *bp)
443 {
444 struct cnic_ops *c_ops;
445 struct cnic_ctl_info info;
446
447 mutex_lock(&bp->cnic_lock);
448 c_ops = rcu_dereference_protected(bp->cnic_ops,
449 lockdep_is_held(&bp->cnic_lock));
450 if (c_ops) {
451 info.cmd = CNIC_CTL_STOP_CMD;
452 c_ops->cnic_ctl(bp->cnic_data, &info);
453 }
454 mutex_unlock(&bp->cnic_lock);
455 }
456
457 static void
458 bnx2_cnic_start(struct bnx2 *bp)
459 {
460 struct cnic_ops *c_ops;
461 struct cnic_ctl_info info;
462
463 mutex_lock(&bp->cnic_lock);
464 c_ops = rcu_dereference_protected(bp->cnic_ops,
465 lockdep_is_held(&bp->cnic_lock));
466 if (c_ops) {
467 if (!(bp->flags & BNX2_FLAG_USING_MSIX)) {
468 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
469
470 bnapi->cnic_tag = bnapi->last_status_idx;
471 }
472 info.cmd = CNIC_CTL_START_CMD;
473 c_ops->cnic_ctl(bp->cnic_data, &info);
474 }
475 mutex_unlock(&bp->cnic_lock);
476 }
477
478 #else
479
480 static void
481 bnx2_cnic_stop(struct bnx2 *bp)
482 {
483 }
484
485 static void
486 bnx2_cnic_start(struct bnx2 *bp)
487 {
488 }
489
490 #endif
491
492 static int
493 bnx2_read_phy(struct bnx2 *bp, u32 reg, u32 *val)
494 {
495 u32 val1;
496 int i, ret;
497
498 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
499 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
500 val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
501
502 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
503 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
504
505 udelay(40);
506 }
507
508 val1 = (bp->phy_addr << 21) | (reg << 16) |
509 BNX2_EMAC_MDIO_COMM_COMMAND_READ | BNX2_EMAC_MDIO_COMM_DISEXT |
510 BNX2_EMAC_MDIO_COMM_START_BUSY;
511 BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
512
513 for (i = 0; i < 50; i++) {
514 udelay(10);
515
516 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
517 if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {
518 udelay(5);
519
520 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
521 val1 &= BNX2_EMAC_MDIO_COMM_DATA;
522
523 break;
524 }
525 }
526
527 if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY) {
528 *val = 0x0;
529 ret = -EBUSY;
530 }
531 else {
532 *val = val1;
533 ret = 0;
534 }
535
536 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
537 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
538 val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
539
540 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
541 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
542
543 udelay(40);
544 }
545
546 return ret;
547 }
548
549 static int
550 bnx2_write_phy(struct bnx2 *bp, u32 reg, u32 val)
551 {
552 u32 val1;
553 int i, ret;
554
555 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
556 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
557 val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
558
559 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
560 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
561
562 udelay(40);
563 }
564
565 val1 = (bp->phy_addr << 21) | (reg << 16) | val |
566 BNX2_EMAC_MDIO_COMM_COMMAND_WRITE |
567 BNX2_EMAC_MDIO_COMM_START_BUSY | BNX2_EMAC_MDIO_COMM_DISEXT;
568 BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
569
570 for (i = 0; i < 50; i++) {
571 udelay(10);
572
573 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
574 if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {
575 udelay(5);
576 break;
577 }
578 }
579
580 if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)
581 ret = -EBUSY;
582 else
583 ret = 0;
584
585 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
586 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
587 val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
588
589 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
590 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
591
592 udelay(40);
593 }
594
595 return ret;
596 }
597
598 static void
599 bnx2_disable_int(struct bnx2 *bp)
600 {
601 int i;
602 struct bnx2_napi *bnapi;
603
604 for (i = 0; i < bp->irq_nvecs; i++) {
605 bnapi = &bp->bnx2_napi[i];
606 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
607 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
608 }
609 BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
610 }
611
612 static void
613 bnx2_enable_int(struct bnx2 *bp)
614 {
615 int i;
616 struct bnx2_napi *bnapi;
617
618 for (i = 0; i < bp->irq_nvecs; i++) {
619 bnapi = &bp->bnx2_napi[i];
620
621 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
622 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
623 BNX2_PCICFG_INT_ACK_CMD_MASK_INT |
624 bnapi->last_status_idx);
625
626 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
627 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
628 bnapi->last_status_idx);
629 }
630 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);
631 }
632
633 static void
634 bnx2_disable_int_sync(struct bnx2 *bp)
635 {
636 int i;
637
638 atomic_inc(&bp->intr_sem);
639 if (!netif_running(bp->dev))
640 return;
641
642 bnx2_disable_int(bp);
643 for (i = 0; i < bp->irq_nvecs; i++)
644 synchronize_irq(bp->irq_tbl[i].vector);
645 }
646
647 static void
648 bnx2_napi_disable(struct bnx2 *bp)
649 {
650 int i;
651
652 for (i = 0; i < bp->irq_nvecs; i++)
653 napi_disable(&bp->bnx2_napi[i].napi);
654 }
655
656 static void
657 bnx2_napi_enable(struct bnx2 *bp)
658 {
659 int i;
660
661 for (i = 0; i < bp->irq_nvecs; i++)
662 napi_enable(&bp->bnx2_napi[i].napi);
663 }
664
665 static void
666 bnx2_netif_stop(struct bnx2 *bp, bool stop_cnic)
667 {
668 if (stop_cnic)
669 bnx2_cnic_stop(bp);
670 if (netif_running(bp->dev)) {
671 bnx2_napi_disable(bp);
672 netif_tx_disable(bp->dev);
673 }
674 bnx2_disable_int_sync(bp);
675 netif_carrier_off(bp->dev); /* prevent tx timeout */
676 }
677
678 static void
679 bnx2_netif_start(struct bnx2 *bp, bool start_cnic)
680 {
681 if (atomic_dec_and_test(&bp->intr_sem)) {
682 if (netif_running(bp->dev)) {
683 netif_tx_wake_all_queues(bp->dev);
684 spin_lock_bh(&bp->phy_lock);
685 if (bp->link_up)
686 netif_carrier_on(bp->dev);
687 spin_unlock_bh(&bp->phy_lock);
688 bnx2_napi_enable(bp);
689 bnx2_enable_int(bp);
690 if (start_cnic)
691 bnx2_cnic_start(bp);
692 }
693 }
694 }
695
696 static void
697 bnx2_free_tx_mem(struct bnx2 *bp)
698 {
699 int i;
700
701 for (i = 0; i < bp->num_tx_rings; i++) {
702 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
703 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
704
705 if (txr->tx_desc_ring) {
706 dma_free_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
707 txr->tx_desc_ring,
708 txr->tx_desc_mapping);
709 txr->tx_desc_ring = NULL;
710 }
711 kfree(txr->tx_buf_ring);
712 txr->tx_buf_ring = NULL;
713 }
714 }
715
716 static void
717 bnx2_free_rx_mem(struct bnx2 *bp)
718 {
719 int i;
720
721 for (i = 0; i < bp->num_rx_rings; i++) {
722 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
723 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
724 int j;
725
726 for (j = 0; j < bp->rx_max_ring; j++) {
727 if (rxr->rx_desc_ring[j])
728 dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
729 rxr->rx_desc_ring[j],
730 rxr->rx_desc_mapping[j]);
731 rxr->rx_desc_ring[j] = NULL;
732 }
733 vfree(rxr->rx_buf_ring);
734 rxr->rx_buf_ring = NULL;
735
736 for (j = 0; j < bp->rx_max_pg_ring; j++) {
737 if (rxr->rx_pg_desc_ring[j])
738 dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
739 rxr->rx_pg_desc_ring[j],
740 rxr->rx_pg_desc_mapping[j]);
741 rxr->rx_pg_desc_ring[j] = NULL;
742 }
743 vfree(rxr->rx_pg_ring);
744 rxr->rx_pg_ring = NULL;
745 }
746 }
747
748 static int
749 bnx2_alloc_tx_mem(struct bnx2 *bp)
750 {
751 int i;
752
753 for (i = 0; i < bp->num_tx_rings; i++) {
754 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
755 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
756
757 txr->tx_buf_ring = kzalloc(SW_TXBD_RING_SIZE, GFP_KERNEL);
758 if (txr->tx_buf_ring == NULL)
759 return -ENOMEM;
760
761 txr->tx_desc_ring =
762 dma_alloc_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
763 &txr->tx_desc_mapping, GFP_KERNEL);
764 if (txr->tx_desc_ring == NULL)
765 return -ENOMEM;
766 }
767 return 0;
768 }
769
770 static int
771 bnx2_alloc_rx_mem(struct bnx2 *bp)
772 {
773 int i;
774
775 for (i = 0; i < bp->num_rx_rings; i++) {
776 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
777 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
778 int j;
779
780 rxr->rx_buf_ring =
781 vzalloc(SW_RXBD_RING_SIZE * bp->rx_max_ring);
782 if (rxr->rx_buf_ring == NULL)
783 return -ENOMEM;
784
785 for (j = 0; j < bp->rx_max_ring; j++) {
786 rxr->rx_desc_ring[j] =
787 dma_alloc_coherent(&bp->pdev->dev,
788 RXBD_RING_SIZE,
789 &rxr->rx_desc_mapping[j],
790 GFP_KERNEL);
791 if (rxr->rx_desc_ring[j] == NULL)
792 return -ENOMEM;
793
794 }
795
796 if (bp->rx_pg_ring_size) {
797 rxr->rx_pg_ring = vzalloc(SW_RXPG_RING_SIZE *
798 bp->rx_max_pg_ring);
799 if (rxr->rx_pg_ring == NULL)
800 return -ENOMEM;
801
802 }
803
804 for (j = 0; j < bp->rx_max_pg_ring; j++) {
805 rxr->rx_pg_desc_ring[j] =
806 dma_alloc_coherent(&bp->pdev->dev,
807 RXBD_RING_SIZE,
808 &rxr->rx_pg_desc_mapping[j],
809 GFP_KERNEL);
810 if (rxr->rx_pg_desc_ring[j] == NULL)
811 return -ENOMEM;
812
813 }
814 }
815 return 0;
816 }
817
818 static void
819 bnx2_free_stats_blk(struct net_device *dev)
820 {
821 struct bnx2 *bp = netdev_priv(dev);
822
823 if (bp->status_blk) {
824 dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
825 bp->status_blk,
826 bp->status_blk_mapping);
827 bp->status_blk = NULL;
828 bp->stats_blk = NULL;
829 }
830 }
831
832 static int
833 bnx2_alloc_stats_blk(struct net_device *dev)
834 {
835 int status_blk_size;
836 void *status_blk;
837 struct bnx2 *bp = netdev_priv(dev);
838
839 /* Combine status and statistics blocks into one allocation. */
840 status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));
841 if (bp->flags & BNX2_FLAG_MSIX_CAP)
842 status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *
843 BNX2_SBLK_MSIX_ALIGN_SIZE);
844 bp->status_stats_size = status_blk_size +
845 sizeof(struct statistics_block);
846 status_blk = dma_zalloc_coherent(&bp->pdev->dev, bp->status_stats_size,
847 &bp->status_blk_mapping, GFP_KERNEL);
848 if (status_blk == NULL)
849 return -ENOMEM;
850
851 bp->status_blk = status_blk;
852 bp->stats_blk = status_blk + status_blk_size;
853 bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;
854
855 return 0;
856 }
857
858 static void
859 bnx2_free_mem(struct bnx2 *bp)
860 {
861 int i;
862 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
863
864 bnx2_free_tx_mem(bp);
865 bnx2_free_rx_mem(bp);
866
867 for (i = 0; i < bp->ctx_pages; i++) {
868 if (bp->ctx_blk[i]) {
869 dma_free_coherent(&bp->pdev->dev, BNX2_PAGE_SIZE,
870 bp->ctx_blk[i],
871 bp->ctx_blk_mapping[i]);
872 bp->ctx_blk[i] = NULL;
873 }
874 }
875
876 if (bnapi->status_blk.msi)
877 bnapi->status_blk.msi = NULL;
878 }
879
880 static int
881 bnx2_alloc_mem(struct bnx2 *bp)
882 {
883 int i, err;
884 struct bnx2_napi *bnapi;
885
886 bnapi = &bp->bnx2_napi[0];
887 bnapi->status_blk.msi = bp->status_blk;
888 bnapi->hw_tx_cons_ptr =
889 &bnapi->status_blk.msi->status_tx_quick_consumer_index0;
890 bnapi->hw_rx_cons_ptr =
891 &bnapi->status_blk.msi->status_rx_quick_consumer_index0;
892 if (bp->flags & BNX2_FLAG_MSIX_CAP) {
893 for (i = 1; i < bp->irq_nvecs; i++) {
894 struct status_block_msix *sblk;
895
896 bnapi = &bp->bnx2_napi[i];
897
898 sblk = (bp->status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);
899 bnapi->status_blk.msix = sblk;
900 bnapi->hw_tx_cons_ptr =
901 &sblk->status_tx_quick_consumer_index;
902 bnapi->hw_rx_cons_ptr =
903 &sblk->status_rx_quick_consumer_index;
904 bnapi->int_num = i << 24;
905 }
906 }
907
908 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
909 bp->ctx_pages = 0x2000 / BNX2_PAGE_SIZE;
910 if (bp->ctx_pages == 0)
911 bp->ctx_pages = 1;
912 for (i = 0; i < bp->ctx_pages; i++) {
913 bp->ctx_blk[i] = dma_alloc_coherent(&bp->pdev->dev,
914 BNX2_PAGE_SIZE,
915 &bp->ctx_blk_mapping[i],
916 GFP_KERNEL);
917 if (bp->ctx_blk[i] == NULL)
918 goto alloc_mem_err;
919 }
920 }
921
922 err = bnx2_alloc_rx_mem(bp);
923 if (err)
924 goto alloc_mem_err;
925
926 err = bnx2_alloc_tx_mem(bp);
927 if (err)
928 goto alloc_mem_err;
929
930 return 0;
931
932 alloc_mem_err:
933 bnx2_free_mem(bp);
934 return -ENOMEM;
935 }
936
937 static void
938 bnx2_report_fw_link(struct bnx2 *bp)
939 {
940 u32 fw_link_status = 0;
941
942 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
943 return;
944
945 if (bp->link_up) {
946 u32 bmsr;
947
948 switch (bp->line_speed) {
949 case SPEED_10:
950 if (bp->duplex == DUPLEX_HALF)
951 fw_link_status = BNX2_LINK_STATUS_10HALF;
952 else
953 fw_link_status = BNX2_LINK_STATUS_10FULL;
954 break;
955 case SPEED_100:
956 if (bp->duplex == DUPLEX_HALF)
957 fw_link_status = BNX2_LINK_STATUS_100HALF;
958 else
959 fw_link_status = BNX2_LINK_STATUS_100FULL;
960 break;
961 case SPEED_1000:
962 if (bp->duplex == DUPLEX_HALF)
963 fw_link_status = BNX2_LINK_STATUS_1000HALF;
964 else
965 fw_link_status = BNX2_LINK_STATUS_1000FULL;
966 break;
967 case SPEED_2500:
968 if (bp->duplex == DUPLEX_HALF)
969 fw_link_status = BNX2_LINK_STATUS_2500HALF;
970 else
971 fw_link_status = BNX2_LINK_STATUS_2500FULL;
972 break;
973 }
974
975 fw_link_status |= BNX2_LINK_STATUS_LINK_UP;
976
977 if (bp->autoneg) {
978 fw_link_status |= BNX2_LINK_STATUS_AN_ENABLED;
979
980 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
981 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
982
983 if (!(bmsr & BMSR_ANEGCOMPLETE) ||
984 bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)
985 fw_link_status |= BNX2_LINK_STATUS_PARALLEL_DET;
986 else
987 fw_link_status |= BNX2_LINK_STATUS_AN_COMPLETE;
988 }
989 }
990 else
991 fw_link_status = BNX2_LINK_STATUS_LINK_DOWN;
992
993 bnx2_shmem_wr(bp, BNX2_LINK_STATUS, fw_link_status);
994 }
995
996 static char *
997 bnx2_xceiver_str(struct bnx2 *bp)
998 {
999 return (bp->phy_port == PORT_FIBRE) ? "SerDes" :
1000 ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) ? "Remote Copper" :
1001 "Copper");
1002 }
1003
1004 static void
1005 bnx2_report_link(struct bnx2 *bp)
1006 {
1007 if (bp->link_up) {
1008 netif_carrier_on(bp->dev);
1009 netdev_info(bp->dev, "NIC %s Link is Up, %d Mbps %s duplex",
1010 bnx2_xceiver_str(bp),
1011 bp->line_speed,
1012 bp->duplex == DUPLEX_FULL ? "full" : "half");
1013
1014 if (bp->flow_ctrl) {
1015 if (bp->flow_ctrl & FLOW_CTRL_RX) {
1016 pr_cont(", receive ");
1017 if (bp->flow_ctrl & FLOW_CTRL_TX)
1018 pr_cont("& transmit ");
1019 }
1020 else {
1021 pr_cont(", transmit ");
1022 }
1023 pr_cont("flow control ON");
1024 }
1025 pr_cont("\n");
1026 } else {
1027 netif_carrier_off(bp->dev);
1028 netdev_err(bp->dev, "NIC %s Link is Down\n",
1029 bnx2_xceiver_str(bp));
1030 }
1031
1032 bnx2_report_fw_link(bp);
1033 }
1034
1035 static void
1036 bnx2_resolve_flow_ctrl(struct bnx2 *bp)
1037 {
1038 u32 local_adv, remote_adv;
1039
1040 bp->flow_ctrl = 0;
1041 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
1042 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
1043
1044 if (bp->duplex == DUPLEX_FULL) {
1045 bp->flow_ctrl = bp->req_flow_ctrl;
1046 }
1047 return;
1048 }
1049
1050 if (bp->duplex != DUPLEX_FULL) {
1051 return;
1052 }
1053
1054 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1055 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {
1056 u32 val;
1057
1058 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
1059 if (val & BCM5708S_1000X_STAT1_TX_PAUSE)
1060 bp->flow_ctrl |= FLOW_CTRL_TX;
1061 if (val & BCM5708S_1000X_STAT1_RX_PAUSE)
1062 bp->flow_ctrl |= FLOW_CTRL_RX;
1063 return;
1064 }
1065
1066 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1067 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1068
1069 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1070 u32 new_local_adv = 0;
1071 u32 new_remote_adv = 0;
1072
1073 if (local_adv & ADVERTISE_1000XPAUSE)
1074 new_local_adv |= ADVERTISE_PAUSE_CAP;
1075 if (local_adv & ADVERTISE_1000XPSE_ASYM)
1076 new_local_adv |= ADVERTISE_PAUSE_ASYM;
1077 if (remote_adv & ADVERTISE_1000XPAUSE)
1078 new_remote_adv |= ADVERTISE_PAUSE_CAP;
1079 if (remote_adv & ADVERTISE_1000XPSE_ASYM)
1080 new_remote_adv |= ADVERTISE_PAUSE_ASYM;
1081
1082 local_adv = new_local_adv;
1083 remote_adv = new_remote_adv;
1084 }
1085
1086 /* See Table 28B-3 of 802.3ab-1999 spec. */
1087 if (local_adv & ADVERTISE_PAUSE_CAP) {
1088 if(local_adv & ADVERTISE_PAUSE_ASYM) {
1089 if (remote_adv & ADVERTISE_PAUSE_CAP) {
1090 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
1091 }
1092 else if (remote_adv & ADVERTISE_PAUSE_ASYM) {
1093 bp->flow_ctrl = FLOW_CTRL_RX;
1094 }
1095 }
1096 else {
1097 if (remote_adv & ADVERTISE_PAUSE_CAP) {
1098 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
1099 }
1100 }
1101 }
1102 else if (local_adv & ADVERTISE_PAUSE_ASYM) {
1103 if ((remote_adv & ADVERTISE_PAUSE_CAP) &&
1104 (remote_adv & ADVERTISE_PAUSE_ASYM)) {
1105
1106 bp->flow_ctrl = FLOW_CTRL_TX;
1107 }
1108 }
1109 }
1110
1111 static int
1112 bnx2_5709s_linkup(struct bnx2 *bp)
1113 {
1114 u32 val, speed;
1115
1116 bp->link_up = 1;
1117
1118 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_GP_STATUS);
1119 bnx2_read_phy(bp, MII_BNX2_GP_TOP_AN_STATUS1, &val);
1120 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1121
1122 if ((bp->autoneg & AUTONEG_SPEED) == 0) {
1123 bp->line_speed = bp->req_line_speed;
1124 bp->duplex = bp->req_duplex;
1125 return 0;
1126 }
1127 speed = val & MII_BNX2_GP_TOP_AN_SPEED_MSK;
1128 switch (speed) {
1129 case MII_BNX2_GP_TOP_AN_SPEED_10:
1130 bp->line_speed = SPEED_10;
1131 break;
1132 case MII_BNX2_GP_TOP_AN_SPEED_100:
1133 bp->line_speed = SPEED_100;
1134 break;
1135 case MII_BNX2_GP_TOP_AN_SPEED_1G:
1136 case MII_BNX2_GP_TOP_AN_SPEED_1GKV:
1137 bp->line_speed = SPEED_1000;
1138 break;
1139 case MII_BNX2_GP_TOP_AN_SPEED_2_5G:
1140 bp->line_speed = SPEED_2500;
1141 break;
1142 }
1143 if (val & MII_BNX2_GP_TOP_AN_FD)
1144 bp->duplex = DUPLEX_FULL;
1145 else
1146 bp->duplex = DUPLEX_HALF;
1147 return 0;
1148 }
1149
1150 static int
1151 bnx2_5708s_linkup(struct bnx2 *bp)
1152 {
1153 u32 val;
1154
1155 bp->link_up = 1;
1156 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
1157 switch (val & BCM5708S_1000X_STAT1_SPEED_MASK) {
1158 case BCM5708S_1000X_STAT1_SPEED_10:
1159 bp->line_speed = SPEED_10;
1160 break;
1161 case BCM5708S_1000X_STAT1_SPEED_100:
1162 bp->line_speed = SPEED_100;
1163 break;
1164 case BCM5708S_1000X_STAT1_SPEED_1G:
1165 bp->line_speed = SPEED_1000;
1166 break;
1167 case BCM5708S_1000X_STAT1_SPEED_2G5:
1168 bp->line_speed = SPEED_2500;
1169 break;
1170 }
1171 if (val & BCM5708S_1000X_STAT1_FD)
1172 bp->duplex = DUPLEX_FULL;
1173 else
1174 bp->duplex = DUPLEX_HALF;
1175
1176 return 0;
1177 }
1178
1179 static int
1180 bnx2_5706s_linkup(struct bnx2 *bp)
1181 {
1182 u32 bmcr, local_adv, remote_adv, common;
1183
1184 bp->link_up = 1;
1185 bp->line_speed = SPEED_1000;
1186
1187 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1188 if (bmcr & BMCR_FULLDPLX) {
1189 bp->duplex = DUPLEX_FULL;
1190 }
1191 else {
1192 bp->duplex = DUPLEX_HALF;
1193 }
1194
1195 if (!(bmcr & BMCR_ANENABLE)) {
1196 return 0;
1197 }
1198
1199 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1200 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1201
1202 common = local_adv & remote_adv;
1203 if (common & (ADVERTISE_1000XHALF | ADVERTISE_1000XFULL)) {
1204
1205 if (common & ADVERTISE_1000XFULL) {
1206 bp->duplex = DUPLEX_FULL;
1207 }
1208 else {
1209 bp->duplex = DUPLEX_HALF;
1210 }
1211 }
1212
1213 return 0;
1214 }
1215
1216 static int
1217 bnx2_copper_linkup(struct bnx2 *bp)
1218 {
1219 u32 bmcr;
1220
1221 bp->phy_flags &= ~BNX2_PHY_FLAG_MDIX;
1222
1223 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1224 if (bmcr & BMCR_ANENABLE) {
1225 u32 local_adv, remote_adv, common;
1226
1227 bnx2_read_phy(bp, MII_CTRL1000, &local_adv);
1228 bnx2_read_phy(bp, MII_STAT1000, &remote_adv);
1229
1230 common = local_adv & (remote_adv >> 2);
1231 if (common & ADVERTISE_1000FULL) {
1232 bp->line_speed = SPEED_1000;
1233 bp->duplex = DUPLEX_FULL;
1234 }
1235 else if (common & ADVERTISE_1000HALF) {
1236 bp->line_speed = SPEED_1000;
1237 bp->duplex = DUPLEX_HALF;
1238 }
1239 else {
1240 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1241 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1242
1243 common = local_adv & remote_adv;
1244 if (common & ADVERTISE_100FULL) {
1245 bp->line_speed = SPEED_100;
1246 bp->duplex = DUPLEX_FULL;
1247 }
1248 else if (common & ADVERTISE_100HALF) {
1249 bp->line_speed = SPEED_100;
1250 bp->duplex = DUPLEX_HALF;
1251 }
1252 else if (common & ADVERTISE_10FULL) {
1253 bp->line_speed = SPEED_10;
1254 bp->duplex = DUPLEX_FULL;
1255 }
1256 else if (common & ADVERTISE_10HALF) {
1257 bp->line_speed = SPEED_10;
1258 bp->duplex = DUPLEX_HALF;
1259 }
1260 else {
1261 bp->line_speed = 0;
1262 bp->link_up = 0;
1263 }
1264 }
1265 }
1266 else {
1267 if (bmcr & BMCR_SPEED100) {
1268 bp->line_speed = SPEED_100;
1269 }
1270 else {
1271 bp->line_speed = SPEED_10;
1272 }
1273 if (bmcr & BMCR_FULLDPLX) {
1274 bp->duplex = DUPLEX_FULL;
1275 }
1276 else {
1277 bp->duplex = DUPLEX_HALF;
1278 }
1279 }
1280
1281 if (bp->link_up) {
1282 u32 ext_status;
1283
1284 bnx2_read_phy(bp, MII_BNX2_EXT_STATUS, &ext_status);
1285 if (ext_status & EXT_STATUS_MDIX)
1286 bp->phy_flags |= BNX2_PHY_FLAG_MDIX;
1287 }
1288
1289 return 0;
1290 }
1291
1292 static void
1293 bnx2_init_rx_context(struct bnx2 *bp, u32 cid)
1294 {
1295 u32 val, rx_cid_addr = GET_CID_ADDR(cid);
1296
1297 val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE;
1298 val |= BNX2_L2CTX_CTX_TYPE_SIZE_L2;
1299 val |= 0x02 << 8;
1300
1301 if (bp->flow_ctrl & FLOW_CTRL_TX)
1302 val |= BNX2_L2CTX_FLOW_CTRL_ENABLE;
1303
1304 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_CTX_TYPE, val);
1305 }
1306
1307 static void
1308 bnx2_init_all_rx_contexts(struct bnx2 *bp)
1309 {
1310 int i;
1311 u32 cid;
1312
1313 for (i = 0, cid = RX_CID; i < bp->num_rx_rings; i++, cid++) {
1314 if (i == 1)
1315 cid = RX_RSS_CID;
1316 bnx2_init_rx_context(bp, cid);
1317 }
1318 }
1319
1320 static void
1321 bnx2_set_mac_link(struct bnx2 *bp)
1322 {
1323 u32 val;
1324
1325 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x2620);
1326 if (bp->link_up && (bp->line_speed == SPEED_1000) &&
1327 (bp->duplex == DUPLEX_HALF)) {
1328 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x26ff);
1329 }
1330
1331 /* Configure the EMAC mode register. */
1332 val = BNX2_RD(bp, BNX2_EMAC_MODE);
1333
1334 val &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
1335 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
1336 BNX2_EMAC_MODE_25G_MODE);
1337
1338 if (bp->link_up) {
1339 switch (bp->line_speed) {
1340 case SPEED_10:
1341 if (BNX2_CHIP(bp) != BNX2_CHIP_5706) {
1342 val |= BNX2_EMAC_MODE_PORT_MII_10M;
1343 break;
1344 }
1345 /* fall through */
1346 case SPEED_100:
1347 val |= BNX2_EMAC_MODE_PORT_MII;
1348 break;
1349 case SPEED_2500:
1350 val |= BNX2_EMAC_MODE_25G_MODE;
1351 /* fall through */
1352 case SPEED_1000:
1353 val |= BNX2_EMAC_MODE_PORT_GMII;
1354 break;
1355 }
1356 }
1357 else {
1358 val |= BNX2_EMAC_MODE_PORT_GMII;
1359 }
1360
1361 /* Set the MAC to operate in the appropriate duplex mode. */
1362 if (bp->duplex == DUPLEX_HALF)
1363 val |= BNX2_EMAC_MODE_HALF_DUPLEX;
1364 BNX2_WR(bp, BNX2_EMAC_MODE, val);
1365
1366 /* Enable/disable rx PAUSE. */
1367 bp->rx_mode &= ~BNX2_EMAC_RX_MODE_FLOW_EN;
1368
1369 if (bp->flow_ctrl & FLOW_CTRL_RX)
1370 bp->rx_mode |= BNX2_EMAC_RX_MODE_FLOW_EN;
1371 BNX2_WR(bp, BNX2_EMAC_RX_MODE, bp->rx_mode);
1372
1373 /* Enable/disable tx PAUSE. */
1374 val = BNX2_RD(bp, BNX2_EMAC_TX_MODE);
1375 val &= ~BNX2_EMAC_TX_MODE_FLOW_EN;
1376
1377 if (bp->flow_ctrl & FLOW_CTRL_TX)
1378 val |= BNX2_EMAC_TX_MODE_FLOW_EN;
1379 BNX2_WR(bp, BNX2_EMAC_TX_MODE, val);
1380
1381 /* Acknowledge the interrupt. */
1382 BNX2_WR(bp, BNX2_EMAC_STATUS, BNX2_EMAC_STATUS_LINK_CHANGE);
1383
1384 bnx2_init_all_rx_contexts(bp);
1385 }
1386
1387 static void
1388 bnx2_enable_bmsr1(struct bnx2 *bp)
1389 {
1390 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1391 (BNX2_CHIP(bp) == BNX2_CHIP_5709))
1392 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1393 MII_BNX2_BLK_ADDR_GP_STATUS);
1394 }
1395
1396 static void
1397 bnx2_disable_bmsr1(struct bnx2 *bp)
1398 {
1399 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1400 (BNX2_CHIP(bp) == BNX2_CHIP_5709))
1401 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1402 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1403 }
1404
1405 static int
1406 bnx2_test_and_enable_2g5(struct bnx2 *bp)
1407 {
1408 u32 up1;
1409 int ret = 1;
1410
1411 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1412 return 0;
1413
1414 if (bp->autoneg & AUTONEG_SPEED)
1415 bp->advertising |= ADVERTISED_2500baseX_Full;
1416
1417 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1418 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
1419
1420 bnx2_read_phy(bp, bp->mii_up1, &up1);
1421 if (!(up1 & BCM5708S_UP1_2G5)) {
1422 up1 |= BCM5708S_UP1_2G5;
1423 bnx2_write_phy(bp, bp->mii_up1, up1);
1424 ret = 0;
1425 }
1426
1427 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1428 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1429 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1430
1431 return ret;
1432 }
1433
1434 static int
1435 bnx2_test_and_disable_2g5(struct bnx2 *bp)
1436 {
1437 u32 up1;
1438 int ret = 0;
1439
1440 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1441 return 0;
1442
1443 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1444 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
1445
1446 bnx2_read_phy(bp, bp->mii_up1, &up1);
1447 if (up1 & BCM5708S_UP1_2G5) {
1448 up1 &= ~BCM5708S_UP1_2G5;
1449 bnx2_write_phy(bp, bp->mii_up1, up1);
1450 ret = 1;
1451 }
1452
1453 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1454 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1455 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1456
1457 return ret;
1458 }
1459
1460 static void
1461 bnx2_enable_forced_2g5(struct bnx2 *bp)
1462 {
1463 u32 uninitialized_var(bmcr);
1464 int err;
1465
1466 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1467 return;
1468
1469 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1470 u32 val;
1471
1472 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1473 MII_BNX2_BLK_ADDR_SERDES_DIG);
1474 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
1475 val &= ~MII_BNX2_SD_MISC1_FORCE_MSK;
1476 val |= MII_BNX2_SD_MISC1_FORCE |
1477 MII_BNX2_SD_MISC1_FORCE_2_5G;
1478 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
1479 }
1480
1481 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1482 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1483 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1484
1485 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1486 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1487 if (!err)
1488 bmcr |= BCM5708S_BMCR_FORCE_2500;
1489 } else {
1490 return;
1491 }
1492
1493 if (err)
1494 return;
1495
1496 if (bp->autoneg & AUTONEG_SPEED) {
1497 bmcr &= ~BMCR_ANENABLE;
1498 if (bp->req_duplex == DUPLEX_FULL)
1499 bmcr |= BMCR_FULLDPLX;
1500 }
1501 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1502 }
1503
1504 static void
1505 bnx2_disable_forced_2g5(struct bnx2 *bp)
1506 {
1507 u32 uninitialized_var(bmcr);
1508 int err;
1509
1510 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1511 return;
1512
1513 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1514 u32 val;
1515
1516 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1517 MII_BNX2_BLK_ADDR_SERDES_DIG);
1518 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
1519 val &= ~MII_BNX2_SD_MISC1_FORCE;
1520 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
1521 }
1522
1523 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1524 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1525 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1526
1527 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1528 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1529 if (!err)
1530 bmcr &= ~BCM5708S_BMCR_FORCE_2500;
1531 } else {
1532 return;
1533 }
1534
1535 if (err)
1536 return;
1537
1538 if (bp->autoneg & AUTONEG_SPEED)
1539 bmcr |= BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_ANRESTART;
1540 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1541 }
1542
1543 static void
1544 bnx2_5706s_force_link_dn(struct bnx2 *bp, int start)
1545 {
1546 u32 val;
1547
1548 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_SERDES_CTL);
1549 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
1550 if (start)
1551 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val & 0xff0f);
1552 else
1553 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val | 0xc0);
1554 }
1555
1556 static int
1557 bnx2_set_link(struct bnx2 *bp)
1558 {
1559 u32 bmsr;
1560 u8 link_up;
1561
1562 if (bp->loopback == MAC_LOOPBACK || bp->loopback == PHY_LOOPBACK) {
1563 bp->link_up = 1;
1564 return 0;
1565 }
1566
1567 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
1568 return 0;
1569
1570 link_up = bp->link_up;
1571
1572 bnx2_enable_bmsr1(bp);
1573 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
1574 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
1575 bnx2_disable_bmsr1(bp);
1576
1577 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1578 (BNX2_CHIP(bp) == BNX2_CHIP_5706)) {
1579 u32 val, an_dbg;
1580
1581 if (bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN) {
1582 bnx2_5706s_force_link_dn(bp, 0);
1583 bp->phy_flags &= ~BNX2_PHY_FLAG_FORCED_DOWN;
1584 }
1585 val = BNX2_RD(bp, BNX2_EMAC_STATUS);
1586
1587 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
1588 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
1589 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
1590
1591 if ((val & BNX2_EMAC_STATUS_LINK) &&
1592 !(an_dbg & MISC_SHDW_AN_DBG_NOSYNC))
1593 bmsr |= BMSR_LSTATUS;
1594 else
1595 bmsr &= ~BMSR_LSTATUS;
1596 }
1597
1598 if (bmsr & BMSR_LSTATUS) {
1599 bp->link_up = 1;
1600
1601 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1602 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
1603 bnx2_5706s_linkup(bp);
1604 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
1605 bnx2_5708s_linkup(bp);
1606 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1607 bnx2_5709s_linkup(bp);
1608 }
1609 else {
1610 bnx2_copper_linkup(bp);
1611 }
1612 bnx2_resolve_flow_ctrl(bp);
1613 }
1614 else {
1615 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1616 (bp->autoneg & AUTONEG_SPEED))
1617 bnx2_disable_forced_2g5(bp);
1618
1619 if (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT) {
1620 u32 bmcr;
1621
1622 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1623 bmcr |= BMCR_ANENABLE;
1624 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1625
1626 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
1627 }
1628 bp->link_up = 0;
1629 }
1630
1631 if (bp->link_up != link_up) {
1632 bnx2_report_link(bp);
1633 }
1634
1635 bnx2_set_mac_link(bp);
1636
1637 return 0;
1638 }
1639
1640 static int
1641 bnx2_reset_phy(struct bnx2 *bp)
1642 {
1643 int i;
1644 u32 reg;
1645
1646 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_RESET);
1647
1648 #define PHY_RESET_MAX_WAIT 100
1649 for (i = 0; i < PHY_RESET_MAX_WAIT; i++) {
1650 udelay(10);
1651
1652 bnx2_read_phy(bp, bp->mii_bmcr, &reg);
1653 if (!(reg & BMCR_RESET)) {
1654 udelay(20);
1655 break;
1656 }
1657 }
1658 if (i == PHY_RESET_MAX_WAIT) {
1659 return -EBUSY;
1660 }
1661 return 0;
1662 }
1663
1664 static u32
1665 bnx2_phy_get_pause_adv(struct bnx2 *bp)
1666 {
1667 u32 adv = 0;
1668
1669 if ((bp->req_flow_ctrl & (FLOW_CTRL_RX | FLOW_CTRL_TX)) ==
1670 (FLOW_CTRL_RX | FLOW_CTRL_TX)) {
1671
1672 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1673 adv = ADVERTISE_1000XPAUSE;
1674 }
1675 else {
1676 adv = ADVERTISE_PAUSE_CAP;
1677 }
1678 }
1679 else if (bp->req_flow_ctrl & FLOW_CTRL_TX) {
1680 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1681 adv = ADVERTISE_1000XPSE_ASYM;
1682 }
1683 else {
1684 adv = ADVERTISE_PAUSE_ASYM;
1685 }
1686 }
1687 else if (bp->req_flow_ctrl & FLOW_CTRL_RX) {
1688 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1689 adv = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1690 }
1691 else {
1692 adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1693 }
1694 }
1695 return adv;
1696 }
1697
1698 static int bnx2_fw_sync(struct bnx2 *, u32, int, int);
1699
1700 static int
1701 bnx2_setup_remote_phy(struct bnx2 *bp, u8 port)
1702 __releases(&bp->phy_lock)
1703 __acquires(&bp->phy_lock)
1704 {
1705 u32 speed_arg = 0, pause_adv;
1706
1707 pause_adv = bnx2_phy_get_pause_adv(bp);
1708
1709 if (bp->autoneg & AUTONEG_SPEED) {
1710 speed_arg |= BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG;
1711 if (bp->advertising & ADVERTISED_10baseT_Half)
1712 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10HALF;
1713 if (bp->advertising & ADVERTISED_10baseT_Full)
1714 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10FULL;
1715 if (bp->advertising & ADVERTISED_100baseT_Half)
1716 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100HALF;
1717 if (bp->advertising & ADVERTISED_100baseT_Full)
1718 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100FULL;
1719 if (bp->advertising & ADVERTISED_1000baseT_Full)
1720 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
1721 if (bp->advertising & ADVERTISED_2500baseX_Full)
1722 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
1723 } else {
1724 if (bp->req_line_speed == SPEED_2500)
1725 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
1726 else if (bp->req_line_speed == SPEED_1000)
1727 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
1728 else if (bp->req_line_speed == SPEED_100) {
1729 if (bp->req_duplex == DUPLEX_FULL)
1730 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100FULL;
1731 else
1732 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100HALF;
1733 } else if (bp->req_line_speed == SPEED_10) {
1734 if (bp->req_duplex == DUPLEX_FULL)
1735 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10FULL;
1736 else
1737 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10HALF;
1738 }
1739 }
1740
1741 if (pause_adv & (ADVERTISE_1000XPAUSE | ADVERTISE_PAUSE_CAP))
1742 speed_arg |= BNX2_NETLINK_SET_LINK_FC_SYM_PAUSE;
1743 if (pause_adv & (ADVERTISE_1000XPSE_ASYM | ADVERTISE_PAUSE_ASYM))
1744 speed_arg |= BNX2_NETLINK_SET_LINK_FC_ASYM_PAUSE;
1745
1746 if (port == PORT_TP)
1747 speed_arg |= BNX2_NETLINK_SET_LINK_PHY_APP_REMOTE |
1748 BNX2_NETLINK_SET_LINK_ETH_AT_WIRESPEED;
1749
1750 bnx2_shmem_wr(bp, BNX2_DRV_MB_ARG0, speed_arg);
1751
1752 spin_unlock_bh(&bp->phy_lock);
1753 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_CMD_SET_LINK, 1, 0);
1754 spin_lock_bh(&bp->phy_lock);
1755
1756 return 0;
1757 }
1758
1759 static int
1760 bnx2_setup_serdes_phy(struct bnx2 *bp, u8 port)
1761 __releases(&bp->phy_lock)
1762 __acquires(&bp->phy_lock)
1763 {
1764 u32 adv, bmcr;
1765 u32 new_adv = 0;
1766
1767 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
1768 return bnx2_setup_remote_phy(bp, port);
1769
1770 if (!(bp->autoneg & AUTONEG_SPEED)) {
1771 u32 new_bmcr;
1772 int force_link_down = 0;
1773
1774 if (bp->req_line_speed == SPEED_2500) {
1775 if (!bnx2_test_and_enable_2g5(bp))
1776 force_link_down = 1;
1777 } else if (bp->req_line_speed == SPEED_1000) {
1778 if (bnx2_test_and_disable_2g5(bp))
1779 force_link_down = 1;
1780 }
1781 bnx2_read_phy(bp, bp->mii_adv, &adv);
1782 adv &= ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF);
1783
1784 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1785 new_bmcr = bmcr & ~BMCR_ANENABLE;
1786 new_bmcr |= BMCR_SPEED1000;
1787
1788 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1789 if (bp->req_line_speed == SPEED_2500)
1790 bnx2_enable_forced_2g5(bp);
1791 else if (bp->req_line_speed == SPEED_1000) {
1792 bnx2_disable_forced_2g5(bp);
1793 new_bmcr &= ~0x2000;
1794 }
1795
1796 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1797 if (bp->req_line_speed == SPEED_2500)
1798 new_bmcr |= BCM5708S_BMCR_FORCE_2500;
1799 else
1800 new_bmcr = bmcr & ~BCM5708S_BMCR_FORCE_2500;
1801 }
1802
1803 if (bp->req_duplex == DUPLEX_FULL) {
1804 adv |= ADVERTISE_1000XFULL;
1805 new_bmcr |= BMCR_FULLDPLX;
1806 }
1807 else {
1808 adv |= ADVERTISE_1000XHALF;
1809 new_bmcr &= ~BMCR_FULLDPLX;
1810 }
1811 if ((new_bmcr != bmcr) || (force_link_down)) {
1812 /* Force a link down visible on the other side */
1813 if (bp->link_up) {
1814 bnx2_write_phy(bp, bp->mii_adv, adv &
1815 ~(ADVERTISE_1000XFULL |
1816 ADVERTISE_1000XHALF));
1817 bnx2_write_phy(bp, bp->mii_bmcr, bmcr |
1818 BMCR_ANRESTART | BMCR_ANENABLE);
1819
1820 bp->link_up = 0;
1821 netif_carrier_off(bp->dev);
1822 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
1823 bnx2_report_link(bp);
1824 }
1825 bnx2_write_phy(bp, bp->mii_adv, adv);
1826 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
1827 } else {
1828 bnx2_resolve_flow_ctrl(bp);
1829 bnx2_set_mac_link(bp);
1830 }
1831 return 0;
1832 }
1833
1834 bnx2_test_and_enable_2g5(bp);
1835
1836 if (bp->advertising & ADVERTISED_1000baseT_Full)
1837 new_adv |= ADVERTISE_1000XFULL;
1838
1839 new_adv |= bnx2_phy_get_pause_adv(bp);
1840
1841 bnx2_read_phy(bp, bp->mii_adv, &adv);
1842 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1843
1844 bp->serdes_an_pending = 0;
1845 if ((adv != new_adv) || ((bmcr & BMCR_ANENABLE) == 0)) {
1846 /* Force a link down visible on the other side */
1847 if (bp->link_up) {
1848 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
1849 spin_unlock_bh(&bp->phy_lock);
1850 msleep(20);
1851 spin_lock_bh(&bp->phy_lock);
1852 }
1853
1854 bnx2_write_phy(bp, bp->mii_adv, new_adv);
1855 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART |
1856 BMCR_ANENABLE);
1857 /* Speed up link-up time when the link partner
1858 * does not autonegotiate which is very common
1859 * in blade servers. Some blade servers use
1860 * IPMI for kerboard input and it's important
1861 * to minimize link disruptions. Autoneg. involves
1862 * exchanging base pages plus 3 next pages and
1863 * normally completes in about 120 msec.
1864 */
1865 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
1866 bp->serdes_an_pending = 1;
1867 mod_timer(&bp->timer, jiffies + bp->current_interval);
1868 } else {
1869 bnx2_resolve_flow_ctrl(bp);
1870 bnx2_set_mac_link(bp);
1871 }
1872
1873 return 0;
1874 }
1875
1876 #define ETHTOOL_ALL_FIBRE_SPEED \
1877 (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) ? \
1878 (ADVERTISED_2500baseX_Full | ADVERTISED_1000baseT_Full) :\
1879 (ADVERTISED_1000baseT_Full)
1880
1881 #define ETHTOOL_ALL_COPPER_SPEED \
1882 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1883 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1884 ADVERTISED_1000baseT_Full)
1885
1886 #define PHY_ALL_10_100_SPEED (ADVERTISE_10HALF | ADVERTISE_10FULL | \
1887 ADVERTISE_100HALF | ADVERTISE_100FULL | ADVERTISE_CSMA)
1888
1889 #define PHY_ALL_1000_SPEED (ADVERTISE_1000HALF | ADVERTISE_1000FULL)
1890
1891 static void
1892 bnx2_set_default_remote_link(struct bnx2 *bp)
1893 {
1894 u32 link;
1895
1896 if (bp->phy_port == PORT_TP)
1897 link = bnx2_shmem_rd(bp, BNX2_RPHY_COPPER_LINK);
1898 else
1899 link = bnx2_shmem_rd(bp, BNX2_RPHY_SERDES_LINK);
1900
1901 if (link & BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG) {
1902 bp->req_line_speed = 0;
1903 bp->autoneg |= AUTONEG_SPEED;
1904 bp->advertising = ADVERTISED_Autoneg;
1905 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
1906 bp->advertising |= ADVERTISED_10baseT_Half;
1907 if (link & BNX2_NETLINK_SET_LINK_SPEED_10FULL)
1908 bp->advertising |= ADVERTISED_10baseT_Full;
1909 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
1910 bp->advertising |= ADVERTISED_100baseT_Half;
1911 if (link & BNX2_NETLINK_SET_LINK_SPEED_100FULL)
1912 bp->advertising |= ADVERTISED_100baseT_Full;
1913 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
1914 bp->advertising |= ADVERTISED_1000baseT_Full;
1915 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
1916 bp->advertising |= ADVERTISED_2500baseX_Full;
1917 } else {
1918 bp->autoneg = 0;
1919 bp->advertising = 0;
1920 bp->req_duplex = DUPLEX_FULL;
1921 if (link & BNX2_NETLINK_SET_LINK_SPEED_10) {
1922 bp->req_line_speed = SPEED_10;
1923 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
1924 bp->req_duplex = DUPLEX_HALF;
1925 }
1926 if (link & BNX2_NETLINK_SET_LINK_SPEED_100) {
1927 bp->req_line_speed = SPEED_100;
1928 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
1929 bp->req_duplex = DUPLEX_HALF;
1930 }
1931 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
1932 bp->req_line_speed = SPEED_1000;
1933 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
1934 bp->req_line_speed = SPEED_2500;
1935 }
1936 }
1937
1938 static void
1939 bnx2_set_default_link(struct bnx2 *bp)
1940 {
1941 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
1942 bnx2_set_default_remote_link(bp);
1943 return;
1944 }
1945
1946 bp->autoneg = AUTONEG_SPEED | AUTONEG_FLOW_CTRL;
1947 bp->req_line_speed = 0;
1948 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1949 u32 reg;
1950
1951 bp->advertising = ETHTOOL_ALL_FIBRE_SPEED | ADVERTISED_Autoneg;
1952
1953 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG);
1954 reg &= BNX2_PORT_HW_CFG_CFG_DFLT_LINK_MASK;
1955 if (reg == BNX2_PORT_HW_CFG_CFG_DFLT_LINK_1G) {
1956 bp->autoneg = 0;
1957 bp->req_line_speed = bp->line_speed = SPEED_1000;
1958 bp->req_duplex = DUPLEX_FULL;
1959 }
1960 } else
1961 bp->advertising = ETHTOOL_ALL_COPPER_SPEED | ADVERTISED_Autoneg;
1962 }
1963
1964 static void
1965 bnx2_send_heart_beat(struct bnx2 *bp)
1966 {
1967 u32 msg;
1968 u32 addr;
1969
1970 spin_lock(&bp->indirect_lock);
1971 msg = (u32) (++bp->fw_drv_pulse_wr_seq & BNX2_DRV_PULSE_SEQ_MASK);
1972 addr = bp->shmem_base + BNX2_DRV_PULSE_MB;
1973 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, addr);
1974 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, msg);
1975 spin_unlock(&bp->indirect_lock);
1976 }
1977
1978 static void
1979 bnx2_remote_phy_event(struct bnx2 *bp)
1980 {
1981 u32 msg;
1982 u8 link_up = bp->link_up;
1983 u8 old_port;
1984
1985 msg = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
1986
1987 if (msg & BNX2_LINK_STATUS_HEART_BEAT_EXPIRED)
1988 bnx2_send_heart_beat(bp);
1989
1990 msg &= ~BNX2_LINK_STATUS_HEART_BEAT_EXPIRED;
1991
1992 if ((msg & BNX2_LINK_STATUS_LINK_UP) == BNX2_LINK_STATUS_LINK_DOWN)
1993 bp->link_up = 0;
1994 else {
1995 u32 speed;
1996
1997 bp->link_up = 1;
1998 speed = msg & BNX2_LINK_STATUS_SPEED_MASK;
1999 bp->duplex = DUPLEX_FULL;
2000 switch (speed) {
2001 case BNX2_LINK_STATUS_10HALF:
2002 bp->duplex = DUPLEX_HALF;
2003 /* fall through */
2004 case BNX2_LINK_STATUS_10FULL:
2005 bp->line_speed = SPEED_10;
2006 break;
2007 case BNX2_LINK_STATUS_100HALF:
2008 bp->duplex = DUPLEX_HALF;
2009 /* fall through */
2010 case BNX2_LINK_STATUS_100BASE_T4:
2011 case BNX2_LINK_STATUS_100FULL:
2012 bp->line_speed = SPEED_100;
2013 break;
2014 case BNX2_LINK_STATUS_1000HALF:
2015 bp->duplex = DUPLEX_HALF;
2016 /* fall through */
2017 case BNX2_LINK_STATUS_1000FULL:
2018 bp->line_speed = SPEED_1000;
2019 break;
2020 case BNX2_LINK_STATUS_2500HALF:
2021 bp->duplex = DUPLEX_HALF;
2022 /* fall through */
2023 case BNX2_LINK_STATUS_2500FULL:
2024 bp->line_speed = SPEED_2500;
2025 break;
2026 default:
2027 bp->line_speed = 0;
2028 break;
2029 }
2030
2031 bp->flow_ctrl = 0;
2032 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
2033 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
2034 if (bp->duplex == DUPLEX_FULL)
2035 bp->flow_ctrl = bp->req_flow_ctrl;
2036 } else {
2037 if (msg & BNX2_LINK_STATUS_TX_FC_ENABLED)
2038 bp->flow_ctrl |= FLOW_CTRL_TX;
2039 if (msg & BNX2_LINK_STATUS_RX_FC_ENABLED)
2040 bp->flow_ctrl |= FLOW_CTRL_RX;
2041 }
2042
2043 old_port = bp->phy_port;
2044 if (msg & BNX2_LINK_STATUS_SERDES_LINK)
2045 bp->phy_port = PORT_FIBRE;
2046 else
2047 bp->phy_port = PORT_TP;
2048
2049 if (old_port != bp->phy_port)
2050 bnx2_set_default_link(bp);
2051
2052 }
2053 if (bp->link_up != link_up)
2054 bnx2_report_link(bp);
2055
2056 bnx2_set_mac_link(bp);
2057 }
2058
2059 static int
2060 bnx2_set_remote_link(struct bnx2 *bp)
2061 {
2062 u32 evt_code;
2063
2064 evt_code = bnx2_shmem_rd(bp, BNX2_FW_EVT_CODE_MB);
2065 switch (evt_code) {
2066 case BNX2_FW_EVT_CODE_LINK_EVENT:
2067 bnx2_remote_phy_event(bp);
2068 break;
2069 case BNX2_FW_EVT_CODE_SW_TIMER_EXPIRATION_EVENT:
2070 default:
2071 bnx2_send_heart_beat(bp);
2072 break;
2073 }
2074 return 0;
2075 }
2076
2077 static int
2078 bnx2_setup_copper_phy(struct bnx2 *bp)
2079 __releases(&bp->phy_lock)
2080 __acquires(&bp->phy_lock)
2081 {
2082 u32 bmcr, adv_reg, new_adv = 0;
2083 u32 new_bmcr;
2084
2085 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
2086
2087 bnx2_read_phy(bp, bp->mii_adv, &adv_reg);
2088 adv_reg &= (PHY_ALL_10_100_SPEED | ADVERTISE_PAUSE_CAP |
2089 ADVERTISE_PAUSE_ASYM);
2090
2091 new_adv = ADVERTISE_CSMA | ethtool_adv_to_mii_adv_t(bp->advertising);
2092
2093 if (bp->autoneg & AUTONEG_SPEED) {
2094 u32 adv1000_reg;
2095 u32 new_adv1000 = 0;
2096
2097 new_adv |= bnx2_phy_get_pause_adv(bp);
2098
2099 bnx2_read_phy(bp, MII_CTRL1000, &adv1000_reg);
2100 adv1000_reg &= PHY_ALL_1000_SPEED;
2101
2102 new_adv1000 |= ethtool_adv_to_mii_ctrl1000_t(bp->advertising);
2103 if ((adv1000_reg != new_adv1000) ||
2104 (adv_reg != new_adv) ||
2105 ((bmcr & BMCR_ANENABLE) == 0)) {
2106
2107 bnx2_write_phy(bp, bp->mii_adv, new_adv);
2108 bnx2_write_phy(bp, MII_CTRL1000, new_adv1000);
2109 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_ANRESTART |
2110 BMCR_ANENABLE);
2111 }
2112 else if (bp->link_up) {
2113 /* Flow ctrl may have changed from auto to forced */
2114 /* or vice-versa. */
2115
2116 bnx2_resolve_flow_ctrl(bp);
2117 bnx2_set_mac_link(bp);
2118 }
2119 return 0;
2120 }
2121
2122 /* advertise nothing when forcing speed */
2123 if (adv_reg != new_adv)
2124 bnx2_write_phy(bp, bp->mii_adv, new_adv);
2125
2126 new_bmcr = 0;
2127 if (bp->req_line_speed == SPEED_100) {
2128 new_bmcr |= BMCR_SPEED100;
2129 }
2130 if (bp->req_duplex == DUPLEX_FULL) {
2131 new_bmcr |= BMCR_FULLDPLX;
2132 }
2133 if (new_bmcr != bmcr) {
2134 u32 bmsr;
2135
2136 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2137 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2138
2139 if (bmsr & BMSR_LSTATUS) {
2140 /* Force link down */
2141 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
2142 spin_unlock_bh(&bp->phy_lock);
2143 msleep(50);
2144 spin_lock_bh(&bp->phy_lock);
2145
2146 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2147 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2148 }
2149
2150 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
2151
2152 /* Normally, the new speed is setup after the link has
2153 * gone down and up again. In some cases, link will not go
2154 * down so we need to set up the new speed here.
2155 */
2156 if (bmsr & BMSR_LSTATUS) {
2157 bp->line_speed = bp->req_line_speed;
2158 bp->duplex = bp->req_duplex;
2159 bnx2_resolve_flow_ctrl(bp);
2160 bnx2_set_mac_link(bp);
2161 }
2162 } else {
2163 bnx2_resolve_flow_ctrl(bp);
2164 bnx2_set_mac_link(bp);
2165 }
2166 return 0;
2167 }
2168
2169 static int
2170 bnx2_setup_phy(struct bnx2 *bp, u8 port)
2171 __releases(&bp->phy_lock)
2172 __acquires(&bp->phy_lock)
2173 {
2174 if (bp->loopback == MAC_LOOPBACK)
2175 return 0;
2176
2177 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
2178 return bnx2_setup_serdes_phy(bp, port);
2179 }
2180 else {
2181 return bnx2_setup_copper_phy(bp);
2182 }
2183 }
2184
2185 static int
2186 bnx2_init_5709s_phy(struct bnx2 *bp, int reset_phy)
2187 {
2188 u32 val;
2189
2190 bp->mii_bmcr = MII_BMCR + 0x10;
2191 bp->mii_bmsr = MII_BMSR + 0x10;
2192 bp->mii_bmsr1 = MII_BNX2_GP_TOP_AN_STATUS1;
2193 bp->mii_adv = MII_ADVERTISE + 0x10;
2194 bp->mii_lpa = MII_LPA + 0x10;
2195 bp->mii_up1 = MII_BNX2_OVER1G_UP1;
2196
2197 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_AER);
2198 bnx2_write_phy(bp, MII_BNX2_AER_AER, MII_BNX2_AER_AER_AN_MMD);
2199
2200 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
2201 if (reset_phy)
2202 bnx2_reset_phy(bp);
2203
2204 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_SERDES_DIG);
2205
2206 bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, &val);
2207 val &= ~MII_BNX2_SD_1000XCTL1_AUTODET;
2208 val |= MII_BNX2_SD_1000XCTL1_FIBER;
2209 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, val);
2210
2211 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
2212 bnx2_read_phy(bp, MII_BNX2_OVER1G_UP1, &val);
2213 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
2214 val |= BCM5708S_UP1_2G5;
2215 else
2216 val &= ~BCM5708S_UP1_2G5;
2217 bnx2_write_phy(bp, MII_BNX2_OVER1G_UP1, val);
2218
2219 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_BAM_NXTPG);
2220 bnx2_read_phy(bp, MII_BNX2_BAM_NXTPG_CTL, &val);
2221 val |= MII_BNX2_NXTPG_CTL_T2 | MII_BNX2_NXTPG_CTL_BAM;
2222 bnx2_write_phy(bp, MII_BNX2_BAM_NXTPG_CTL, val);
2223
2224 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_CL73_USERB0);
2225
2226 val = MII_BNX2_CL73_BAM_EN | MII_BNX2_CL73_BAM_STA_MGR_EN |
2227 MII_BNX2_CL73_BAM_NP_AFT_BP_EN;
2228 bnx2_write_phy(bp, MII_BNX2_CL73_BAM_CTL1, val);
2229
2230 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
2231
2232 return 0;
2233 }
2234
2235 static int
2236 bnx2_init_5708s_phy(struct bnx2 *bp, int reset_phy)
2237 {
2238 u32 val;
2239
2240 if (reset_phy)
2241 bnx2_reset_phy(bp);
2242
2243 bp->mii_up1 = BCM5708S_UP1;
2244
2245 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG3);
2246 bnx2_write_phy(bp, BCM5708S_DIG_3_0, BCM5708S_DIG_3_0_USE_IEEE);
2247 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
2248
2249 bnx2_read_phy(bp, BCM5708S_1000X_CTL1, &val);
2250 val |= BCM5708S_1000X_CTL1_FIBER_MODE | BCM5708S_1000X_CTL1_AUTODET_EN;
2251 bnx2_write_phy(bp, BCM5708S_1000X_CTL1, val);
2252
2253 bnx2_read_phy(bp, BCM5708S_1000X_CTL2, &val);
2254 val |= BCM5708S_1000X_CTL2_PLLEL_DET_EN;
2255 bnx2_write_phy(bp, BCM5708S_1000X_CTL2, val);
2256
2257 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) {
2258 bnx2_read_phy(bp, BCM5708S_UP1, &val);
2259 val |= BCM5708S_UP1_2G5;
2260 bnx2_write_phy(bp, BCM5708S_UP1, val);
2261 }
2262
2263 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||
2264 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||
2265 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1)) {
2266 /* increase tx signal amplitude */
2267 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2268 BCM5708S_BLK_ADDR_TX_MISC);
2269 bnx2_read_phy(bp, BCM5708S_TX_ACTL1, &val);
2270 val &= ~BCM5708S_TX_ACTL1_DRIVER_VCM;
2271 bnx2_write_phy(bp, BCM5708S_TX_ACTL1, val);
2272 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
2273 }
2274
2275 val = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG) &
2276 BNX2_PORT_HW_CFG_CFG_TXCTL3_MASK;
2277
2278 if (val) {
2279 u32 is_backplane;
2280
2281 is_backplane = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
2282 if (is_backplane & BNX2_SHARED_HW_CFG_PHY_BACKPLANE) {
2283 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2284 BCM5708S_BLK_ADDR_TX_MISC);
2285 bnx2_write_phy(bp, BCM5708S_TX_ACTL3, val);
2286 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2287 BCM5708S_BLK_ADDR_DIG);
2288 }
2289 }
2290 return 0;
2291 }
2292
2293 static int
2294 bnx2_init_5706s_phy(struct bnx2 *bp, int reset_phy)
2295 {
2296 if (reset_phy)
2297 bnx2_reset_phy(bp);
2298
2299 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
2300
2301 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
2302 BNX2_WR(bp, BNX2_MISC_GP_HW_CTL0, 0x300);
2303
2304 if (bp->dev->mtu > ETH_DATA_LEN) {
2305 u32 val;
2306
2307 /* Set extended packet length bit */
2308 bnx2_write_phy(bp, 0x18, 0x7);
2309 bnx2_read_phy(bp, 0x18, &val);
2310 bnx2_write_phy(bp, 0x18, (val & 0xfff8) | 0x4000);
2311
2312 bnx2_write_phy(bp, 0x1c, 0x6c00);
2313 bnx2_read_phy(bp, 0x1c, &val);
2314 bnx2_write_phy(bp, 0x1c, (val & 0x3ff) | 0xec02);
2315 }
2316 else {
2317 u32 val;
2318
2319 bnx2_write_phy(bp, 0x18, 0x7);
2320 bnx2_read_phy(bp, 0x18, &val);
2321 bnx2_write_phy(bp, 0x18, val & ~0x4007);
2322
2323 bnx2_write_phy(bp, 0x1c, 0x6c00);
2324 bnx2_read_phy(bp, 0x1c, &val);
2325 bnx2_write_phy(bp, 0x1c, (val & 0x3fd) | 0xec00);
2326 }
2327
2328 return 0;
2329 }
2330
2331 static int
2332 bnx2_init_copper_phy(struct bnx2 *bp, int reset_phy)
2333 {
2334 u32 val;
2335
2336 if (reset_phy)
2337 bnx2_reset_phy(bp);
2338
2339 if (bp->phy_flags & BNX2_PHY_FLAG_CRC_FIX) {
2340 bnx2_write_phy(bp, 0x18, 0x0c00);
2341 bnx2_write_phy(bp, 0x17, 0x000a);
2342 bnx2_write_phy(bp, 0x15, 0x310b);
2343 bnx2_write_phy(bp, 0x17, 0x201f);
2344 bnx2_write_phy(bp, 0x15, 0x9506);
2345 bnx2_write_phy(bp, 0x17, 0x401f);
2346 bnx2_write_phy(bp, 0x15, 0x14e2);
2347 bnx2_write_phy(bp, 0x18, 0x0400);
2348 }
2349
2350 if (bp->phy_flags & BNX2_PHY_FLAG_DIS_EARLY_DAC) {
2351 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS,
2352 MII_BNX2_DSP_EXPAND_REG | 0x8);
2353 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
2354 val &= ~(1 << 8);
2355 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val);
2356 }
2357
2358 if (bp->dev->mtu > ETH_DATA_LEN) {
2359 /* Set extended packet length bit */
2360 bnx2_write_phy(bp, 0x18, 0x7);
2361 bnx2_read_phy(bp, 0x18, &val);
2362 bnx2_write_phy(bp, 0x18, val | 0x4000);
2363
2364 bnx2_read_phy(bp, 0x10, &val);
2365 bnx2_write_phy(bp, 0x10, val | 0x1);
2366 }
2367 else {
2368 bnx2_write_phy(bp, 0x18, 0x7);
2369 bnx2_read_phy(bp, 0x18, &val);
2370 bnx2_write_phy(bp, 0x18, val & ~0x4007);
2371
2372 bnx2_read_phy(bp, 0x10, &val);
2373 bnx2_write_phy(bp, 0x10, val & ~0x1);
2374 }
2375
2376 /* ethernet@wirespeed */
2377 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, AUX_CTL_MISC_CTL);
2378 bnx2_read_phy(bp, MII_BNX2_AUX_CTL, &val);
2379 val |= AUX_CTL_MISC_CTL_WR | AUX_CTL_MISC_CTL_WIRESPEED;
2380
2381 /* auto-mdix */
2382 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
2383 val |= AUX_CTL_MISC_CTL_AUTOMDIX;
2384
2385 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, val);
2386 return 0;
2387 }
2388
2389
2390 static int
2391 bnx2_init_phy(struct bnx2 *bp, int reset_phy)
2392 __releases(&bp->phy_lock)
2393 __acquires(&bp->phy_lock)
2394 {
2395 u32 val;
2396 int rc = 0;
2397
2398 bp->phy_flags &= ~BNX2_PHY_FLAG_INT_MODE_MASK;
2399 bp->phy_flags |= BNX2_PHY_FLAG_INT_MODE_LINK_READY;
2400
2401 bp->mii_bmcr = MII_BMCR;
2402 bp->mii_bmsr = MII_BMSR;
2403 bp->mii_bmsr1 = MII_BMSR;
2404 bp->mii_adv = MII_ADVERTISE;
2405 bp->mii_lpa = MII_LPA;
2406
2407 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
2408
2409 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
2410 goto setup_phy;
2411
2412 bnx2_read_phy(bp, MII_PHYSID1, &val);
2413 bp->phy_id = val << 16;
2414 bnx2_read_phy(bp, MII_PHYSID2, &val);
2415 bp->phy_id |= val & 0xffff;
2416
2417 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
2418 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
2419 rc = bnx2_init_5706s_phy(bp, reset_phy);
2420 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
2421 rc = bnx2_init_5708s_phy(bp, reset_phy);
2422 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
2423 rc = bnx2_init_5709s_phy(bp, reset_phy);
2424 }
2425 else {
2426 rc = bnx2_init_copper_phy(bp, reset_phy);
2427 }
2428
2429 setup_phy:
2430 if (!rc)
2431 rc = bnx2_setup_phy(bp, bp->phy_port);
2432
2433 return rc;
2434 }
2435
2436 static int
2437 bnx2_set_mac_loopback(struct bnx2 *bp)
2438 {
2439 u32 mac_mode;
2440
2441 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
2442 mac_mode &= ~BNX2_EMAC_MODE_PORT;
2443 mac_mode |= BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK;
2444 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
2445 bp->link_up = 1;
2446 return 0;
2447 }
2448
2449 static int bnx2_test_link(struct bnx2 *);
2450
2451 static int
2452 bnx2_set_phy_loopback(struct bnx2 *bp)
2453 {
2454 u32 mac_mode;
2455 int rc, i;
2456
2457 spin_lock_bh(&bp->phy_lock);
2458 rc = bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK | BMCR_FULLDPLX |
2459 BMCR_SPEED1000);
2460 spin_unlock_bh(&bp->phy_lock);
2461 if (rc)
2462 return rc;
2463
2464 for (i = 0; i < 10; i++) {
2465 if (bnx2_test_link(bp) == 0)
2466 break;
2467 msleep(100);
2468 }
2469
2470 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
2471 mac_mode &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
2472 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
2473 BNX2_EMAC_MODE_25G_MODE);
2474
2475 mac_mode |= BNX2_EMAC_MODE_PORT_GMII;
2476 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
2477 bp->link_up = 1;
2478 return 0;
2479 }
2480
2481 static void
2482 bnx2_dump_mcp_state(struct bnx2 *bp)
2483 {
2484 struct net_device *dev = bp->dev;
2485 u32 mcp_p0, mcp_p1;
2486
2487 netdev_err(dev, "<--- start MCP states dump --->\n");
2488 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
2489 mcp_p0 = BNX2_MCP_STATE_P0;
2490 mcp_p1 = BNX2_MCP_STATE_P1;
2491 } else {
2492 mcp_p0 = BNX2_MCP_STATE_P0_5708;
2493 mcp_p1 = BNX2_MCP_STATE_P1_5708;
2494 }
2495 netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",
2496 bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));
2497 netdev_err(dev, "DEBUG: MCP mode[%08x] state[%08x] evt_mask[%08x]\n",
2498 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_MODE),
2499 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_STATE),
2500 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_EVENT_MASK));
2501 netdev_err(dev, "DEBUG: pc[%08x] pc[%08x] instr[%08x]\n",
2502 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
2503 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
2504 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_INSTRUCTION));
2505 netdev_err(dev, "DEBUG: shmem states:\n");
2506 netdev_err(dev, "DEBUG: drv_mb[%08x] fw_mb[%08x] link_status[%08x]",
2507 bnx2_shmem_rd(bp, BNX2_DRV_MB),
2508 bnx2_shmem_rd(bp, BNX2_FW_MB),
2509 bnx2_shmem_rd(bp, BNX2_LINK_STATUS));
2510 pr_cont(" drv_pulse_mb[%08x]\n", bnx2_shmem_rd(bp, BNX2_DRV_PULSE_MB));
2511 netdev_err(dev, "DEBUG: dev_info_signature[%08x] reset_type[%08x]",
2512 bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE),
2513 bnx2_shmem_rd(bp, BNX2_BC_STATE_RESET_TYPE));
2514 pr_cont(" condition[%08x]\n",
2515 bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION));
2516 DP_SHMEM_LINE(bp, BNX2_BC_RESET_TYPE);
2517 DP_SHMEM_LINE(bp, 0x3cc);
2518 DP_SHMEM_LINE(bp, 0x3dc);
2519 DP_SHMEM_LINE(bp, 0x3ec);
2520 netdev_err(dev, "DEBUG: 0x3fc[%08x]\n", bnx2_shmem_rd(bp, 0x3fc));
2521 netdev_err(dev, "<--- end MCP states dump --->\n");
2522 }
2523
2524 static int
2525 bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)
2526 {
2527 int i;
2528 u32 val;
2529
2530 bp->fw_wr_seq++;
2531 msg_data |= bp->fw_wr_seq;
2532 bp->fw_last_msg = msg_data;
2533
2534 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
2535
2536 if (!ack)
2537 return 0;
2538
2539 /* wait for an acknowledgement. */
2540 for (i = 0; i < (BNX2_FW_ACK_TIME_OUT_MS / 10); i++) {
2541 msleep(10);
2542
2543 val = bnx2_shmem_rd(bp, BNX2_FW_MB);
2544
2545 if ((val & BNX2_FW_MSG_ACK) == (msg_data & BNX2_DRV_MSG_SEQ))
2546 break;
2547 }
2548 if ((msg_data & BNX2_DRV_MSG_DATA) == BNX2_DRV_MSG_DATA_WAIT0)
2549 return 0;
2550
2551 /* If we timed out, inform the firmware that this is the case. */
2552 if ((val & BNX2_FW_MSG_ACK) != (msg_data & BNX2_DRV_MSG_SEQ)) {
2553 msg_data &= ~BNX2_DRV_MSG_CODE;
2554 msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;
2555
2556 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
2557 if (!silent) {
2558 pr_err("fw sync timeout, reset code = %x\n", msg_data);
2559 bnx2_dump_mcp_state(bp);
2560 }
2561
2562 return -EBUSY;
2563 }
2564
2565 if ((val & BNX2_FW_MSG_STATUS_MASK) != BNX2_FW_MSG_STATUS_OK)
2566 return -EIO;
2567
2568 return 0;
2569 }
2570
2571 static int
2572 bnx2_init_5709_context(struct bnx2 *bp)
2573 {
2574 int i, ret = 0;
2575 u32 val;
2576
2577 val = BNX2_CTX_COMMAND_ENABLED | BNX2_CTX_COMMAND_MEM_INIT | (1 << 12);
2578 val |= (BNX2_PAGE_BITS - 8) << 16;
2579 BNX2_WR(bp, BNX2_CTX_COMMAND, val);
2580 for (i = 0; i < 10; i++) {
2581 val = BNX2_RD(bp, BNX2_CTX_COMMAND);
2582 if (!(val & BNX2_CTX_COMMAND_MEM_INIT))
2583 break;
2584 udelay(2);
2585 }
2586 if (val & BNX2_CTX_COMMAND_MEM_INIT)
2587 return -EBUSY;
2588
2589 for (i = 0; i < bp->ctx_pages; i++) {
2590 int j;
2591
2592 if (bp->ctx_blk[i])
2593 memset(bp->ctx_blk[i], 0, BNX2_PAGE_SIZE);
2594 else
2595 return -ENOMEM;
2596
2597 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,
2598 (bp->ctx_blk_mapping[i] & 0xffffffff) |
2599 BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);
2600 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA1,
2601 (u64) bp->ctx_blk_mapping[i] >> 32);
2602 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL, i |
2603 BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
2604 for (j = 0; j < 10; j++) {
2605
2606 val = BNX2_RD(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL);
2607 if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
2608 break;
2609 udelay(5);
2610 }
2611 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
2612 ret = -EBUSY;
2613 break;
2614 }
2615 }
2616 return ret;
2617 }
2618
2619 static void
2620 bnx2_init_context(struct bnx2 *bp)
2621 {
2622 u32 vcid;
2623
2624 vcid = 96;
2625 while (vcid) {
2626 u32 vcid_addr, pcid_addr, offset;
2627 int i;
2628
2629 vcid--;
2630
2631 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
2632 u32 new_vcid;
2633
2634 vcid_addr = GET_PCID_ADDR(vcid);
2635 if (vcid & 0x8) {
2636 new_vcid = 0x60 + (vcid & 0xf0) + (vcid & 0x7);
2637 }
2638 else {
2639 new_vcid = vcid;
2640 }
2641 pcid_addr = GET_PCID_ADDR(new_vcid);
2642 }
2643 else {
2644 vcid_addr = GET_CID_ADDR(vcid);
2645 pcid_addr = vcid_addr;
2646 }
2647
2648 for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {
2649 vcid_addr += (i << PHY_CTX_SHIFT);
2650 pcid_addr += (i << PHY_CTX_SHIFT);
2651
2652 BNX2_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
2653 BNX2_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
2654
2655 /* Zero out the context. */
2656 for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)
2657 bnx2_ctx_wr(bp, vcid_addr, offset, 0);
2658 }
2659 }
2660 }
2661
2662 static int
2663 bnx2_alloc_bad_rbuf(struct bnx2 *bp)
2664 {
2665 u16 *good_mbuf;
2666 u32 good_mbuf_cnt;
2667 u32 val;
2668
2669 good_mbuf = kmalloc(512 * sizeof(u16), GFP_KERNEL);
2670 if (good_mbuf == NULL)
2671 return -ENOMEM;
2672
2673 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
2674 BNX2_MISC_ENABLE_SET_BITS_RX_MBUF_ENABLE);
2675
2676 good_mbuf_cnt = 0;
2677
2678 /* Allocate a bunch of mbufs and save the good ones in an array. */
2679 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
2680 while (val & BNX2_RBUF_STATUS1_FREE_COUNT) {
2681 bnx2_reg_wr_ind(bp, BNX2_RBUF_COMMAND,
2682 BNX2_RBUF_COMMAND_ALLOC_REQ);
2683
2684 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_FW_BUF_ALLOC);
2685
2686 val &= BNX2_RBUF_FW_BUF_ALLOC_VALUE;
2687
2688 /* The addresses with Bit 9 set are bad memory blocks. */
2689 if (!(val & (1 << 9))) {
2690 good_mbuf[good_mbuf_cnt] = (u16) val;
2691 good_mbuf_cnt++;
2692 }
2693
2694 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
2695 }
2696
2697 /* Free the good ones back to the mbuf pool thus discarding
2698 * all the bad ones. */
2699 while (good_mbuf_cnt) {
2700 good_mbuf_cnt--;
2701
2702 val = good_mbuf[good_mbuf_cnt];
2703 val = (val << 9) | val | 1;
2704
2705 bnx2_reg_wr_ind(bp, BNX2_RBUF_FW_BUF_FREE, val);
2706 }
2707 kfree(good_mbuf);
2708 return 0;
2709 }
2710
2711 static void
2712 bnx2_set_mac_addr(struct bnx2 *bp, u8 *mac_addr, u32 pos)
2713 {
2714 u32 val;
2715
2716 val = (mac_addr[0] << 8) | mac_addr[1];
2717
2718 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH0 + (pos * 8), val);
2719
2720 val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
2721 (mac_addr[4] << 8) | mac_addr[5];
2722
2723 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH1 + (pos * 8), val);
2724 }
2725
2726 static inline int
2727 bnx2_alloc_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
2728 {
2729 dma_addr_t mapping;
2730 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];
2731 struct bnx2_rx_bd *rxbd =
2732 &rxr->rx_pg_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];
2733 struct page *page = alloc_page(gfp);
2734
2735 if (!page)
2736 return -ENOMEM;
2737 mapping = dma_map_page(&bp->pdev->dev, page, 0, PAGE_SIZE,
2738 PCI_DMA_FROMDEVICE);
2739 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
2740 __free_page(page);
2741 return -EIO;
2742 }
2743
2744 rx_pg->page = page;
2745 dma_unmap_addr_set(rx_pg, mapping, mapping);
2746 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
2747 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
2748 return 0;
2749 }
2750
2751 static void
2752 bnx2_free_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index)
2753 {
2754 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];
2755 struct page *page = rx_pg->page;
2756
2757 if (!page)
2758 return;
2759
2760 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(rx_pg, mapping),
2761 PAGE_SIZE, PCI_DMA_FROMDEVICE);
2762
2763 __free_page(page);
2764 rx_pg->page = NULL;
2765 }
2766
2767 static inline int
2768 bnx2_alloc_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
2769 {
2770 u8 *data;
2771 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[index];
2772 dma_addr_t mapping;
2773 struct bnx2_rx_bd *rxbd =
2774 &rxr->rx_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];
2775
2776 data = kmalloc(bp->rx_buf_size, gfp);
2777 if (!data)
2778 return -ENOMEM;
2779
2780 mapping = dma_map_single(&bp->pdev->dev,
2781 get_l2_fhdr(data),
2782 bp->rx_buf_use_size,
2783 PCI_DMA_FROMDEVICE);
2784 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
2785 kfree(data);
2786 return -EIO;
2787 }
2788
2789 rx_buf->data = data;
2790 dma_unmap_addr_set(rx_buf, mapping, mapping);
2791
2792 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
2793 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
2794
2795 rxr->rx_prod_bseq += bp->rx_buf_use_size;
2796
2797 return 0;
2798 }
2799
2800 static int
2801 bnx2_phy_event_is_set(struct bnx2 *bp, struct bnx2_napi *bnapi, u32 event)
2802 {
2803 struct status_block *sblk = bnapi->status_blk.msi;
2804 u32 new_link_state, old_link_state;
2805 int is_set = 1;
2806
2807 new_link_state = sblk->status_attn_bits & event;
2808 old_link_state = sblk->status_attn_bits_ack & event;
2809 if (new_link_state != old_link_state) {
2810 if (new_link_state)
2811 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_SET_CMD, event);
2812 else
2813 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_CLEAR_CMD, event);
2814 } else
2815 is_set = 0;
2816
2817 return is_set;
2818 }
2819
2820 static void
2821 bnx2_phy_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
2822 {
2823 spin_lock(&bp->phy_lock);
2824
2825 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_LINK_STATE))
2826 bnx2_set_link(bp);
2827 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_TIMER_ABORT))
2828 bnx2_set_remote_link(bp);
2829
2830 spin_unlock(&bp->phy_lock);
2831
2832 }
2833
2834 static inline u16
2835 bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi)
2836 {
2837 u16 cons;
2838
2839 cons = READ_ONCE(*bnapi->hw_tx_cons_ptr);
2840
2841 if (unlikely((cons & BNX2_MAX_TX_DESC_CNT) == BNX2_MAX_TX_DESC_CNT))
2842 cons++;
2843 return cons;
2844 }
2845
2846 static int
2847 bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
2848 {
2849 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
2850 u16 hw_cons, sw_cons, sw_ring_cons;
2851 int tx_pkt = 0, index;
2852 unsigned int tx_bytes = 0;
2853 struct netdev_queue *txq;
2854
2855 index = (bnapi - bp->bnx2_napi);
2856 txq = netdev_get_tx_queue(bp->dev, index);
2857
2858 hw_cons = bnx2_get_hw_tx_cons(bnapi);
2859 sw_cons = txr->tx_cons;
2860
2861 while (sw_cons != hw_cons) {
2862 struct bnx2_sw_tx_bd *tx_buf;
2863 struct sk_buff *skb;
2864 int i, last;
2865
2866 sw_ring_cons = BNX2_TX_RING_IDX(sw_cons);
2867
2868 tx_buf = &txr->tx_buf_ring[sw_ring_cons];
2869 skb = tx_buf->skb;
2870
2871 /* prefetch skb_end_pointer() to speedup skb_shinfo(skb) */
2872 prefetch(&skb->end);
2873
2874 /* partial BD completions possible with TSO packets */
2875 if (tx_buf->is_gso) {
2876 u16 last_idx, last_ring_idx;
2877
2878 last_idx = sw_cons + tx_buf->nr_frags + 1;
2879 last_ring_idx = sw_ring_cons + tx_buf->nr_frags + 1;
2880 if (unlikely(last_ring_idx >= BNX2_MAX_TX_DESC_CNT)) {
2881 last_idx++;
2882 }
2883 if (((s16) ((s16) last_idx - (s16) hw_cons)) > 0) {
2884 break;
2885 }
2886 }
2887
2888 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
2889 skb_headlen(skb), PCI_DMA_TODEVICE);
2890
2891 tx_buf->skb = NULL;
2892 last = tx_buf->nr_frags;
2893
2894 for (i = 0; i < last; i++) {
2895 struct bnx2_sw_tx_bd *tx_buf;
2896
2897 sw_cons = BNX2_NEXT_TX_BD(sw_cons);
2898
2899 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(sw_cons)];
2900 dma_unmap_page(&bp->pdev->dev,
2901 dma_unmap_addr(tx_buf, mapping),
2902 skb_frag_size(&skb_shinfo(skb)->frags[i]),
2903 PCI_DMA_TODEVICE);
2904 }
2905
2906 sw_cons = BNX2_NEXT_TX_BD(sw_cons);
2907
2908 tx_bytes += skb->len;
2909 dev_kfree_skb_any(skb);
2910 tx_pkt++;
2911 if (tx_pkt == budget)
2912 break;
2913
2914 if (hw_cons == sw_cons)
2915 hw_cons = bnx2_get_hw_tx_cons(bnapi);
2916 }
2917
2918 netdev_tx_completed_queue(txq, tx_pkt, tx_bytes);
2919 txr->hw_tx_cons = hw_cons;
2920 txr->tx_cons = sw_cons;
2921
2922 /* Need to make the tx_cons update visible to bnx2_start_xmit()
2923 * before checking for netif_tx_queue_stopped(). Without the
2924 * memory barrier, there is a small possibility that bnx2_start_xmit()
2925 * will miss it and cause the queue to be stopped forever.
2926 */
2927 smp_mb();
2928
2929 if (unlikely(netif_tx_queue_stopped(txq)) &&
2930 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
2931 __netif_tx_lock(txq, smp_processor_id());
2932 if ((netif_tx_queue_stopped(txq)) &&
2933 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh))
2934 netif_tx_wake_queue(txq);
2935 __netif_tx_unlock(txq);
2936 }
2937
2938 return tx_pkt;
2939 }
2940
2941 static void
2942 bnx2_reuse_rx_skb_pages(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
2943 struct sk_buff *skb, int count)
2944 {
2945 struct bnx2_sw_pg *cons_rx_pg, *prod_rx_pg;
2946 struct bnx2_rx_bd *cons_bd, *prod_bd;
2947 int i;
2948 u16 hw_prod, prod;
2949 u16 cons = rxr->rx_pg_cons;
2950
2951 cons_rx_pg = &rxr->rx_pg_ring[cons];
2952
2953 /* The caller was unable to allocate a new page to replace the
2954 * last one in the frags array, so we need to recycle that page
2955 * and then free the skb.
2956 */
2957 if (skb) {
2958 struct page *page;
2959 struct skb_shared_info *shinfo;
2960
2961 shinfo = skb_shinfo(skb);
2962 shinfo->nr_frags--;
2963 page = skb_frag_page(&shinfo->frags[shinfo->nr_frags]);
2964 __skb_frag_set_page(&shinfo->frags[shinfo->nr_frags], NULL);
2965
2966 cons_rx_pg->page = page;
2967 dev_kfree_skb(skb);
2968 }
2969
2970 hw_prod = rxr->rx_pg_prod;
2971
2972 for (i = 0; i < count; i++) {
2973 prod = BNX2_RX_PG_RING_IDX(hw_prod);
2974
2975 prod_rx_pg = &rxr->rx_pg_ring[prod];
2976 cons_rx_pg = &rxr->rx_pg_ring[cons];
2977 cons_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(cons)]
2978 [BNX2_RX_IDX(cons)];
2979 prod_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(prod)]
2980 [BNX2_RX_IDX(prod)];
2981
2982 if (prod != cons) {
2983 prod_rx_pg->page = cons_rx_pg->page;
2984 cons_rx_pg->page = NULL;
2985 dma_unmap_addr_set(prod_rx_pg, mapping,
2986 dma_unmap_addr(cons_rx_pg, mapping));
2987
2988 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
2989 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
2990
2991 }
2992 cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(cons));
2993 hw_prod = BNX2_NEXT_RX_BD(hw_prod);
2994 }
2995 rxr->rx_pg_prod = hw_prod;
2996 rxr->rx_pg_cons = cons;
2997 }
2998
2999 static inline void
3000 bnx2_reuse_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
3001 u8 *data, u16 cons, u16 prod)
3002 {
3003 struct bnx2_sw_bd *cons_rx_buf, *prod_rx_buf;
3004 struct bnx2_rx_bd *cons_bd, *prod_bd;
3005
3006 cons_rx_buf = &rxr->rx_buf_ring[cons];
3007 prod_rx_buf = &rxr->rx_buf_ring[prod];
3008
3009 dma_sync_single_for_device(&bp->pdev->dev,
3010 dma_unmap_addr(cons_rx_buf, mapping),
3011 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH, PCI_DMA_FROMDEVICE);
3012
3013 rxr->rx_prod_bseq += bp->rx_buf_use_size;
3014
3015 prod_rx_buf->data = data;
3016
3017 if (cons == prod)
3018 return;
3019
3020 dma_unmap_addr_set(prod_rx_buf, mapping,
3021 dma_unmap_addr(cons_rx_buf, mapping));
3022
3023 cons_bd = &rxr->rx_desc_ring[BNX2_RX_RING(cons)][BNX2_RX_IDX(cons)];
3024 prod_bd = &rxr->rx_desc_ring[BNX2_RX_RING(prod)][BNX2_RX_IDX(prod)];
3025 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
3026 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
3027 }
3028
3029 static struct sk_buff *
3030 bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u8 *data,
3031 unsigned int len, unsigned int hdr_len, dma_addr_t dma_addr,
3032 u32 ring_idx)
3033 {
3034 int err;
3035 u16 prod = ring_idx & 0xffff;
3036 struct sk_buff *skb;
3037
3038 err = bnx2_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
3039 if (unlikely(err)) {
3040 bnx2_reuse_rx_data(bp, rxr, data, (u16) (ring_idx >> 16), prod);
3041 error:
3042 if (hdr_len) {
3043 unsigned int raw_len = len + 4;
3044 int pages = PAGE_ALIGN(raw_len - hdr_len) >> PAGE_SHIFT;
3045
3046 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
3047 }
3048 return NULL;
3049 }
3050
3051 dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
3052 PCI_DMA_FROMDEVICE);
3053 skb = build_skb(data, 0);
3054 if (!skb) {
3055 kfree(data);
3056 goto error;
3057 }
3058 skb_reserve(skb, ((u8 *)get_l2_fhdr(data) - data) + BNX2_RX_OFFSET);
3059 if (hdr_len == 0) {
3060 skb_put(skb, len);
3061 return skb;
3062 } else {
3063 unsigned int i, frag_len, frag_size, pages;
3064 struct bnx2_sw_pg *rx_pg;
3065 u16 pg_cons = rxr->rx_pg_cons;
3066 u16 pg_prod = rxr->rx_pg_prod;
3067
3068 frag_size = len + 4 - hdr_len;
3069 pages = PAGE_ALIGN(frag_size) >> PAGE_SHIFT;
3070 skb_put(skb, hdr_len);
3071
3072 for (i = 0; i < pages; i++) {
3073 dma_addr_t mapping_old;
3074
3075 frag_len = min(frag_size, (unsigned int) PAGE_SIZE);
3076 if (unlikely(frag_len <= 4)) {
3077 unsigned int tail = 4 - frag_len;
3078
3079 rxr->rx_pg_cons = pg_cons;
3080 rxr->rx_pg_prod = pg_prod;
3081 bnx2_reuse_rx_skb_pages(bp, rxr, NULL,
3082 pages - i);
3083 skb->len -= tail;
3084 if (i == 0) {
3085 skb->tail -= tail;
3086 } else {
3087 skb_frag_t *frag =
3088 &skb_shinfo(skb)->frags[i - 1];
3089 skb_frag_size_sub(frag, tail);
3090 skb->data_len -= tail;
3091 }
3092 return skb;
3093 }
3094 rx_pg = &rxr->rx_pg_ring[pg_cons];
3095
3096 /* Don't unmap yet. If we're unable to allocate a new
3097 * page, we need to recycle the page and the DMA addr.
3098 */
3099 mapping_old = dma_unmap_addr(rx_pg, mapping);
3100 if (i == pages - 1)
3101 frag_len -= 4;
3102
3103 skb_fill_page_desc(skb, i, rx_pg->page, 0, frag_len);
3104 rx_pg->page = NULL;
3105
3106 err = bnx2_alloc_rx_page(bp, rxr,
3107 BNX2_RX_PG_RING_IDX(pg_prod),
3108 GFP_ATOMIC);
3109 if (unlikely(err)) {
3110 rxr->rx_pg_cons = pg_cons;
3111 rxr->rx_pg_prod = pg_prod;
3112 bnx2_reuse_rx_skb_pages(bp, rxr, skb,
3113 pages - i);
3114 return NULL;
3115 }
3116
3117 dma_unmap_page(&bp->pdev->dev, mapping_old,
3118 PAGE_SIZE, PCI_DMA_FROMDEVICE);
3119
3120 frag_size -= frag_len;
3121 skb->data_len += frag_len;
3122 skb->truesize += PAGE_SIZE;
3123 skb->len += frag_len;
3124
3125 pg_prod = BNX2_NEXT_RX_BD(pg_prod);
3126 pg_cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(pg_cons));
3127 }
3128 rxr->rx_pg_prod = pg_prod;
3129 rxr->rx_pg_cons = pg_cons;
3130 }
3131 return skb;
3132 }
3133
3134 static inline u16
3135 bnx2_get_hw_rx_cons(struct bnx2_napi *bnapi)
3136 {
3137 u16 cons;
3138
3139 cons = READ_ONCE(*bnapi->hw_rx_cons_ptr);
3140
3141 if (unlikely((cons & BNX2_MAX_RX_DESC_CNT) == BNX2_MAX_RX_DESC_CNT))
3142 cons++;
3143 return cons;
3144 }
3145
3146 static int
3147 bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
3148 {
3149 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3150 u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
3151 struct l2_fhdr *rx_hdr;
3152 int rx_pkt = 0, pg_ring_used = 0;
3153
3154 if (budget <= 0)
3155 return rx_pkt;
3156
3157 hw_cons = bnx2_get_hw_rx_cons(bnapi);
3158 sw_cons = rxr->rx_cons;
3159 sw_prod = rxr->rx_prod;
3160
3161 /* Memory barrier necessary as speculative reads of the rx
3162 * buffer can be ahead of the index in the status block
3163 */
3164 rmb();
3165 while (sw_cons != hw_cons) {
3166 unsigned int len, hdr_len;
3167 u32 status;
3168 struct bnx2_sw_bd *rx_buf, *next_rx_buf;
3169 struct sk_buff *skb;
3170 dma_addr_t dma_addr;
3171 u8 *data;
3172 u16 next_ring_idx;
3173
3174 sw_ring_cons = BNX2_RX_RING_IDX(sw_cons);
3175 sw_ring_prod = BNX2_RX_RING_IDX(sw_prod);
3176
3177 rx_buf = &rxr->rx_buf_ring[sw_ring_cons];
3178 data = rx_buf->data;
3179 rx_buf->data = NULL;
3180
3181 rx_hdr = get_l2_fhdr(data);
3182 prefetch(rx_hdr);
3183
3184 dma_addr = dma_unmap_addr(rx_buf, mapping);
3185
3186 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr,
3187 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH,
3188 PCI_DMA_FROMDEVICE);
3189
3190 next_ring_idx = BNX2_RX_RING_IDX(BNX2_NEXT_RX_BD(sw_cons));
3191 next_rx_buf = &rxr->rx_buf_ring[next_ring_idx];
3192 prefetch(get_l2_fhdr(next_rx_buf->data));
3193
3194 len = rx_hdr->l2_fhdr_pkt_len;
3195 status = rx_hdr->l2_fhdr_status;
3196
3197 hdr_len = 0;
3198 if (status & L2_FHDR_STATUS_SPLIT) {
3199 hdr_len = rx_hdr->l2_fhdr_ip_xsum;
3200 pg_ring_used = 1;
3201 } else if (len > bp->rx_jumbo_thresh) {
3202 hdr_len = bp->rx_jumbo_thresh;
3203 pg_ring_used = 1;
3204 }
3205
3206 if (unlikely(status & (L2_FHDR_ERRORS_BAD_CRC |
3207 L2_FHDR_ERRORS_PHY_DECODE |
3208 L2_FHDR_ERRORS_ALIGNMENT |
3209 L2_FHDR_ERRORS_TOO_SHORT |
3210 L2_FHDR_ERRORS_GIANT_FRAME))) {
3211
3212 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
3213 sw_ring_prod);
3214 if (pg_ring_used) {
3215 int pages;
3216
3217 pages = PAGE_ALIGN(len - hdr_len) >> PAGE_SHIFT;
3218
3219 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
3220 }
3221 goto next_rx;
3222 }
3223
3224 len -= 4;
3225
3226 if (len <= bp->rx_copy_thresh) {
3227 skb = netdev_alloc_skb(bp->dev, len + 6);
3228 if (skb == NULL) {
3229 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
3230 sw_ring_prod);
3231 goto next_rx;
3232 }
3233
3234 /* aligned copy */
3235 memcpy(skb->data,
3236 (u8 *)rx_hdr + BNX2_RX_OFFSET - 6,
3237 len + 6);
3238 skb_reserve(skb, 6);
3239 skb_put(skb, len);
3240
3241 bnx2_reuse_rx_data(bp, rxr, data,
3242 sw_ring_cons, sw_ring_prod);
3243
3244 } else {
3245 skb = bnx2_rx_skb(bp, rxr, data, len, hdr_len, dma_addr,
3246 (sw_ring_cons << 16) | sw_ring_prod);
3247 if (!skb)
3248 goto next_rx;
3249 }
3250 if ((status & L2_FHDR_STATUS_L2_VLAN_TAG) &&
3251 !(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG))
3252 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rx_hdr->l2_fhdr_vlan_tag);
3253
3254 skb->protocol = eth_type_trans(skb, bp->dev);
3255
3256 if (len > (bp->dev->mtu + ETH_HLEN) &&
3257 skb->protocol != htons(0x8100) &&
3258 skb->protocol != htons(ETH_P_8021AD)) {
3259
3260 dev_kfree_skb(skb);
3261 goto next_rx;
3262
3263 }
3264
3265 skb_checksum_none_assert(skb);
3266 if ((bp->dev->features & NETIF_F_RXCSUM) &&
3267 (status & (L2_FHDR_STATUS_TCP_SEGMENT |
3268 L2_FHDR_STATUS_UDP_DATAGRAM))) {
3269
3270 if (likely((status & (L2_FHDR_ERRORS_TCP_XSUM |
3271 L2_FHDR_ERRORS_UDP_XSUM)) == 0))
3272 skb->ip_summed = CHECKSUM_UNNECESSARY;
3273 }
3274 if ((bp->dev->features & NETIF_F_RXHASH) &&
3275 ((status & L2_FHDR_STATUS_USE_RXHASH) ==
3276 L2_FHDR_STATUS_USE_RXHASH))
3277 skb_set_hash(skb, rx_hdr->l2_fhdr_hash,
3278 PKT_HASH_TYPE_L3);
3279
3280 skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);
3281 napi_gro_receive(&bnapi->napi, skb);
3282 rx_pkt++;
3283
3284 next_rx:
3285 sw_cons = BNX2_NEXT_RX_BD(sw_cons);
3286 sw_prod = BNX2_NEXT_RX_BD(sw_prod);
3287
3288 if ((rx_pkt == budget))
3289 break;
3290
3291 /* Refresh hw_cons to see if there is new work */
3292 if (sw_cons == hw_cons) {
3293 hw_cons = bnx2_get_hw_rx_cons(bnapi);
3294 rmb();
3295 }
3296 }
3297 rxr->rx_cons = sw_cons;
3298 rxr->rx_prod = sw_prod;
3299
3300 if (pg_ring_used)
3301 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
3302
3303 BNX2_WR16(bp, rxr->rx_bidx_addr, sw_prod);
3304
3305 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
3306
3307 mmiowb();
3308
3309 return rx_pkt;
3310
3311 }
3312
3313 /* MSI ISR - The only difference between this and the INTx ISR
3314 * is that the MSI interrupt is always serviced.
3315 */
3316 static irqreturn_t
3317 bnx2_msi(int irq, void *dev_instance)
3318 {
3319 struct bnx2_napi *bnapi = dev_instance;
3320 struct bnx2 *bp = bnapi->bp;
3321
3322 prefetch(bnapi->status_blk.msi);
3323 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3324 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
3325 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
3326
3327 /* Return here if interrupt is disabled. */
3328 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3329 return IRQ_HANDLED;
3330
3331 napi_schedule(&bnapi->napi);
3332
3333 return IRQ_HANDLED;
3334 }
3335
3336 static irqreturn_t
3337 bnx2_msi_1shot(int irq, void *dev_instance)
3338 {
3339 struct bnx2_napi *bnapi = dev_instance;
3340 struct bnx2 *bp = bnapi->bp;
3341
3342 prefetch(bnapi->status_blk.msi);
3343
3344 /* Return here if interrupt is disabled. */
3345 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3346 return IRQ_HANDLED;
3347
3348 napi_schedule(&bnapi->napi);
3349
3350 return IRQ_HANDLED;
3351 }
3352
3353 static irqreturn_t
3354 bnx2_interrupt(int irq, void *dev_instance)
3355 {
3356 struct bnx2_napi *bnapi = dev_instance;
3357 struct bnx2 *bp = bnapi->bp;
3358 struct status_block *sblk = bnapi->status_blk.msi;
3359
3360 /* When using INTx, it is possible for the interrupt to arrive
3361 * at the CPU before the status block posted prior to the
3362 * interrupt. Reading a register will flush the status block.
3363 * When using MSI, the MSI message will always complete after
3364 * the status block write.
3365 */
3366 if ((sblk->status_idx == bnapi->last_status_idx) &&
3367 (BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS) &
3368 BNX2_PCICFG_MISC_STATUS_INTA_VALUE))
3369 return IRQ_NONE;
3370
3371 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3372 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
3373 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
3374
3375 /* Read back to deassert IRQ immediately to avoid too many
3376 * spurious interrupts.
3377 */
3378 BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
3379
3380 /* Return here if interrupt is shared and is disabled. */
3381 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3382 return IRQ_HANDLED;
3383
3384 if (napi_schedule_prep(&bnapi->napi)) {
3385 bnapi->last_status_idx = sblk->status_idx;
3386 __napi_schedule(&bnapi->napi);
3387 }
3388
3389 return IRQ_HANDLED;
3390 }
3391
3392 static inline int
3393 bnx2_has_fast_work(struct bnx2_napi *bnapi)
3394 {
3395 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
3396 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3397
3398 if ((bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons) ||
3399 (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons))
3400 return 1;
3401 return 0;
3402 }
3403
3404 #define STATUS_ATTN_EVENTS (STATUS_ATTN_BITS_LINK_STATE | \
3405 STATUS_ATTN_BITS_TIMER_ABORT)
3406
3407 static inline int
3408 bnx2_has_work(struct bnx2_napi *bnapi)
3409 {
3410 struct status_block *sblk = bnapi->status_blk.msi;
3411
3412 if (bnx2_has_fast_work(bnapi))
3413 return 1;
3414
3415 #ifdef BCM_CNIC
3416 if (bnapi->cnic_present && (bnapi->cnic_tag != sblk->status_idx))
3417 return 1;
3418 #endif
3419
3420 if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
3421 (sblk->status_attn_bits_ack & STATUS_ATTN_EVENTS))
3422 return 1;
3423
3424 return 0;
3425 }
3426
3427 static void
3428 bnx2_chk_missed_msi(struct bnx2 *bp)
3429 {
3430 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
3431 u32 msi_ctrl;
3432
3433 if (bnx2_has_work(bnapi)) {
3434 msi_ctrl = BNX2_RD(bp, BNX2_PCICFG_MSI_CONTROL);
3435 if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))
3436 return;
3437
3438 if (bnapi->last_status_idx == bp->idle_chk_status_idx) {
3439 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
3440 ~BNX2_PCICFG_MSI_CONTROL_ENABLE);
3441 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);
3442 bnx2_msi(bp->irq_tbl[0].vector, bnapi);
3443 }
3444 }
3445
3446 bp->idle_chk_status_idx = bnapi->last_status_idx;
3447 }
3448
3449 #ifdef BCM_CNIC
3450 static void bnx2_poll_cnic(struct bnx2 *bp, struct bnx2_napi *bnapi)
3451 {
3452 struct cnic_ops *c_ops;
3453
3454 if (!bnapi->cnic_present)
3455 return;
3456
3457 rcu_read_lock();
3458 c_ops = rcu_dereference(bp->cnic_ops);
3459 if (c_ops)
3460 bnapi->cnic_tag = c_ops->cnic_handler(bp->cnic_data,
3461 bnapi->status_blk.msi);
3462 rcu_read_unlock();
3463 }
3464 #endif
3465
3466 static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)
3467 {
3468 struct status_block *sblk = bnapi->status_blk.msi;
3469 u32 status_attn_bits = sblk->status_attn_bits;
3470 u32 status_attn_bits_ack = sblk->status_attn_bits_ack;
3471
3472 if ((status_attn_bits & STATUS_ATTN_EVENTS) !=
3473 (status_attn_bits_ack & STATUS_ATTN_EVENTS)) {
3474
3475 bnx2_phy_int(bp, bnapi);
3476
3477 /* This is needed to take care of transient status
3478 * during link changes.
3479 */
3480 BNX2_WR(bp, BNX2_HC_COMMAND,
3481 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
3482 BNX2_RD(bp, BNX2_HC_COMMAND);
3483 }
3484 }
3485
3486 static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,
3487 int work_done, int budget)
3488 {
3489 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
3490 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3491
3492 if (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons)
3493 bnx2_tx_int(bp, bnapi, 0);
3494
3495 if (bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons)
3496 work_done += bnx2_rx_int(bp, bnapi, budget - work_done);
3497
3498 return work_done;
3499 }
3500
3501 static int bnx2_poll_msix(struct napi_struct *napi, int budget)
3502 {
3503 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
3504 struct bnx2 *bp = bnapi->bp;
3505 int work_done = 0;
3506 struct status_block_msix *sblk = bnapi->status_blk.msix;
3507
3508 while (1) {
3509 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
3510 if (unlikely(work_done >= budget))
3511 break;
3512
3513 bnapi->last_status_idx = sblk->status_idx;
3514 /* status idx must be read before checking for more work. */
3515 rmb();
3516 if (likely(!bnx2_has_fast_work(bnapi))) {
3517
3518 napi_complete_done(napi, work_done);
3519 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
3520 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3521 bnapi->last_status_idx);
3522 break;
3523 }
3524 }
3525 return work_done;
3526 }
3527
3528 static int bnx2_poll(struct napi_struct *napi, int budget)
3529 {
3530 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
3531 struct bnx2 *bp = bnapi->bp;
3532 int work_done = 0;
3533 struct status_block *sblk = bnapi->status_blk.msi;
3534
3535 while (1) {
3536 bnx2_poll_link(bp, bnapi);
3537
3538 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
3539
3540 #ifdef BCM_CNIC
3541 bnx2_poll_cnic(bp, bnapi);
3542 #endif
3543
3544 /* bnapi->last_status_idx is used below to tell the hw how
3545 * much work has been processed, so we must read it before
3546 * checking for more work.
3547 */
3548 bnapi->last_status_idx = sblk->status_idx;
3549
3550 if (unlikely(work_done >= budget))
3551 break;
3552
3553 rmb();
3554 if (likely(!bnx2_has_work(bnapi))) {
3555 napi_complete_done(napi, work_done);
3556 if (likely(bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)) {
3557 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3558 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3559 bnapi->last_status_idx);
3560 break;
3561 }
3562 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3563 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3564 BNX2_PCICFG_INT_ACK_CMD_MASK_INT |
3565 bnapi->last_status_idx);
3566
3567 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3568 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3569 bnapi->last_status_idx);
3570 break;
3571 }
3572 }
3573
3574 return work_done;
3575 }
3576
3577 /* Called with rtnl_lock from vlan functions and also netif_tx_lock
3578 * from set_multicast.
3579 */
3580 static void
3581 bnx2_set_rx_mode(struct net_device *dev)
3582 {
3583 struct bnx2 *bp = netdev_priv(dev);
3584 u32 rx_mode, sort_mode;
3585 struct netdev_hw_addr *ha;
3586 int i;
3587
3588 if (!netif_running(dev))
3589 return;
3590
3591 spin_lock_bh(&bp->phy_lock);
3592
3593 rx_mode = bp->rx_mode & ~(BNX2_EMAC_RX_MODE_PROMISCUOUS |
3594 BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG);
3595 sort_mode = 1 | BNX2_RPM_SORT_USER0_BC_EN;
3596 if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
3597 (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
3598 rx_mode |= BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG;
3599 if (dev->flags & IFF_PROMISC) {
3600 /* Promiscuous mode. */
3601 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
3602 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
3603 BNX2_RPM_SORT_USER0_PROM_VLAN;
3604 }
3605 else if (dev->flags & IFF_ALLMULTI) {
3606 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
3607 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
3608 0xffffffff);
3609 }
3610 sort_mode |= BNX2_RPM_SORT_USER0_MC_EN;
3611 }
3612 else {
3613 /* Accept one or more multicast(s). */
3614 u32 mc_filter[NUM_MC_HASH_REGISTERS];
3615 u32 regidx;
3616 u32 bit;
3617 u32 crc;
3618
3619 memset(mc_filter, 0, 4 * NUM_MC_HASH_REGISTERS);
3620
3621 netdev_for_each_mc_addr(ha, dev) {
3622 crc = ether_crc_le(ETH_ALEN, ha->addr);
3623 bit = crc & 0xff;
3624 regidx = (bit & 0xe0) >> 5;
3625 bit &= 0x1f;
3626 mc_filter[regidx] |= (1 << bit);
3627 }
3628
3629 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
3630 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
3631 mc_filter[i]);
3632 }
3633
3634 sort_mode |= BNX2_RPM_SORT_USER0_MC_HSH_EN;
3635 }
3636
3637 if (netdev_uc_count(dev) > BNX2_MAX_UNICAST_ADDRESSES) {
3638 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
3639 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
3640 BNX2_RPM_SORT_USER0_PROM_VLAN;
3641 } else if (!(dev->flags & IFF_PROMISC)) {
3642 /* Add all entries into to the match filter list */
3643 i = 0;
3644 netdev_for_each_uc_addr(ha, dev) {
3645 bnx2_set_mac_addr(bp, ha->addr,
3646 i + BNX2_START_UNICAST_ADDRESS_INDEX);
3647 sort_mode |= (1 <<
3648 (i + BNX2_START_UNICAST_ADDRESS_INDEX));
3649 i++;
3650 }
3651
3652 }
3653
3654 if (rx_mode != bp->rx_mode) {
3655 bp->rx_mode = rx_mode;
3656 BNX2_WR(bp, BNX2_EMAC_RX_MODE, rx_mode);
3657 }
3658
3659 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
3660 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode);
3661 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode | BNX2_RPM_SORT_USER0_ENA);
3662
3663 spin_unlock_bh(&bp->phy_lock);
3664 }
3665
3666 static int
3667 check_fw_section(const struct firmware *fw,
3668 const struct bnx2_fw_file_section *section,
3669 u32 alignment, bool non_empty)
3670 {
3671 u32 offset = be32_to_cpu(section->offset);
3672 u32 len = be32_to_cpu(section->len);
3673
3674 if ((offset == 0 && len != 0) || offset >= fw->size || offset & 3)
3675 return -EINVAL;
3676 if ((non_empty && len == 0) || len > fw->size - offset ||
3677 len & (alignment - 1))
3678 return -EINVAL;
3679 return 0;
3680 }
3681
3682 static int
3683 check_mips_fw_entry(const struct firmware *fw,
3684 const struct bnx2_mips_fw_file_entry *entry)
3685 {
3686 if (check_fw_section(fw, &entry->text, 4, true) ||
3687 check_fw_section(fw, &entry->data, 4, false) ||
3688 check_fw_section(fw, &entry->rodata, 4, false))
3689 return -EINVAL;
3690 return 0;
3691 }
3692
3693 static void bnx2_release_firmware(struct bnx2 *bp)
3694 {
3695 if (bp->rv2p_firmware) {
3696 release_firmware(bp->mips_firmware);
3697 release_firmware(bp->rv2p_firmware);
3698 bp->rv2p_firmware = NULL;
3699 }
3700 }
3701
3702 static int bnx2_request_uncached_firmware(struct bnx2 *bp)
3703 {
3704 const char *mips_fw_file, *rv2p_fw_file;
3705 const struct bnx2_mips_fw_file *mips_fw;
3706 const struct bnx2_rv2p_fw_file *rv2p_fw;
3707 int rc;
3708
3709 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
3710 mips_fw_file = FW_MIPS_FILE_09;
3711 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A0) ||
3712 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A1))
3713 rv2p_fw_file = FW_RV2P_FILE_09_Ax;
3714 else
3715 rv2p_fw_file = FW_RV2P_FILE_09;
3716 } else {
3717 mips_fw_file = FW_MIPS_FILE_06;
3718 rv2p_fw_file = FW_RV2P_FILE_06;
3719 }
3720
3721 rc = request_firmware(&bp->mips_firmware, mips_fw_file, &bp->pdev->dev);
3722 if (rc) {
3723 pr_err("Can't load firmware file \"%s\"\n", mips_fw_file);
3724 goto out;
3725 }
3726
3727 rc = request_firmware(&bp->rv2p_firmware, rv2p_fw_file, &bp->pdev->dev);
3728 if (rc) {
3729 pr_err("Can't load firmware file \"%s\"\n", rv2p_fw_file);
3730 goto err_release_mips_firmware;
3731 }
3732 mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
3733 rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
3734 if (bp->mips_firmware->size < sizeof(*mips_fw) ||
3735 check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||
3736 check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||
3737 check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||
3738 check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||
3739 check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {
3740 pr_err("Firmware file \"%s\" is invalid\n", mips_fw_file);
3741 rc = -EINVAL;
3742 goto err_release_firmware;
3743 }
3744 if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||
3745 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||
3746 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {
3747 pr_err("Firmware file \"%s\" is invalid\n", rv2p_fw_file);
3748 rc = -EINVAL;
3749 goto err_release_firmware;
3750 }
3751 out:
3752 return rc;
3753
3754 err_release_firmware:
3755 release_firmware(bp->rv2p_firmware);
3756 bp->rv2p_firmware = NULL;
3757 err_release_mips_firmware:
3758 release_firmware(bp->mips_firmware);
3759 goto out;
3760 }
3761
3762 static int bnx2_request_firmware(struct bnx2 *bp)
3763 {
3764 return bp->rv2p_firmware ? 0 : bnx2_request_uncached_firmware(bp);
3765 }
3766
3767 static u32
3768 rv2p_fw_fixup(u32 rv2p_proc, int idx, u32 loc, u32 rv2p_code)
3769 {
3770 switch (idx) {
3771 case RV2P_P1_FIXUP_PAGE_SIZE_IDX:
3772 rv2p_code &= ~RV2P_BD_PAGE_SIZE_MSK;
3773 rv2p_code |= RV2P_BD_PAGE_SIZE;
3774 break;
3775 }
3776 return rv2p_code;
3777 }
3778
3779 static int
3780 load_rv2p_fw(struct bnx2 *bp, u32 rv2p_proc,
3781 const struct bnx2_rv2p_fw_file_entry *fw_entry)
3782 {
3783 u32 rv2p_code_len, file_offset;
3784 __be32 *rv2p_code;
3785 int i;
3786 u32 val, cmd, addr;
3787
3788 rv2p_code_len = be32_to_cpu(fw_entry->rv2p.len);
3789 file_offset = be32_to_cpu(fw_entry->rv2p.offset);
3790
3791 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
3792
3793 if (rv2p_proc == RV2P_PROC1) {
3794 cmd = BNX2_RV2P_PROC1_ADDR_CMD_RDWR;
3795 addr = BNX2_RV2P_PROC1_ADDR_CMD;
3796 } else {
3797 cmd = BNX2_RV2P_PROC2_ADDR_CMD_RDWR;
3798 addr = BNX2_RV2P_PROC2_ADDR_CMD;
3799 }
3800
3801 for (i = 0; i < rv2p_code_len; i += 8) {
3802 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, be32_to_cpu(*rv2p_code));
3803 rv2p_code++;
3804 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, be32_to_cpu(*rv2p_code));
3805 rv2p_code++;
3806
3807 val = (i / 8) | cmd;
3808 BNX2_WR(bp, addr, val);
3809 }
3810
3811 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
3812 for (i = 0; i < 8; i++) {
3813 u32 loc, code;
3814
3815 loc = be32_to_cpu(fw_entry->fixup[i]);
3816 if (loc && ((loc * 4) < rv2p_code_len)) {
3817 code = be32_to_cpu(*(rv2p_code + loc - 1));
3818 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, code);
3819 code = be32_to_cpu(*(rv2p_code + loc));
3820 code = rv2p_fw_fixup(rv2p_proc, i, loc, code);
3821 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, code);
3822
3823 val = (loc / 2) | cmd;
3824 BNX2_WR(bp, addr, val);
3825 }
3826 }
3827
3828 /* Reset the processor, un-stall is done later. */
3829 if (rv2p_proc == RV2P_PROC1) {
3830 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC1_RESET);
3831 }
3832 else {
3833 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC2_RESET);
3834 }
3835
3836 return 0;
3837 }
3838
3839 static int
3840 load_cpu_fw(struct bnx2 *bp, const struct cpu_reg *cpu_reg,
3841 const struct bnx2_mips_fw_file_entry *fw_entry)
3842 {
3843 u32 addr, len, file_offset;
3844 __be32 *data;
3845 u32 offset;
3846 u32 val;
3847
3848 /* Halt the CPU. */
3849 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
3850 val |= cpu_reg->mode_value_halt;
3851 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
3852 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
3853
3854 /* Load the Text area. */
3855 addr = be32_to_cpu(fw_entry->text.addr);
3856 len = be32_to_cpu(fw_entry->text.len);
3857 file_offset = be32_to_cpu(fw_entry->text.offset);
3858 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3859
3860 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3861 if (len) {
3862 int j;
3863
3864 for (j = 0; j < (len / 4); j++, offset += 4)
3865 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3866 }
3867
3868 /* Load the Data area. */
3869 addr = be32_to_cpu(fw_entry->data.addr);
3870 len = be32_to_cpu(fw_entry->data.len);
3871 file_offset = be32_to_cpu(fw_entry->data.offset);
3872 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3873
3874 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3875 if (len) {
3876 int j;
3877
3878 for (j = 0; j < (len / 4); j++, offset += 4)
3879 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3880 }
3881
3882 /* Load the Read-Only area. */
3883 addr = be32_to_cpu(fw_entry->rodata.addr);
3884 len = be32_to_cpu(fw_entry->rodata.len);
3885 file_offset = be32_to_cpu(fw_entry->rodata.offset);
3886 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3887
3888 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3889 if (len) {
3890 int j;
3891
3892 for (j = 0; j < (len / 4); j++, offset += 4)
3893 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3894 }
3895
3896 /* Clear the pre-fetch instruction. */
3897 bnx2_reg_wr_ind(bp, cpu_reg->inst, 0);
3898
3899 val = be32_to_cpu(fw_entry->start_addr);
3900 bnx2_reg_wr_ind(bp, cpu_reg->pc, val);
3901
3902 /* Start the CPU. */
3903 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
3904 val &= ~cpu_reg->mode_value_halt;
3905 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
3906 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
3907
3908 return 0;
3909 }
3910
3911 static int
3912 bnx2_init_cpus(struct bnx2 *bp)
3913 {
3914 const struct bnx2_mips_fw_file *mips_fw =
3915 (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
3916 const struct bnx2_rv2p_fw_file *rv2p_fw =
3917 (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
3918 int rc;
3919
3920 /* Initialize the RV2P processor. */
3921 load_rv2p_fw(bp, RV2P_PROC1, &rv2p_fw->proc1);
3922 load_rv2p_fw(bp, RV2P_PROC2, &rv2p_fw->proc2);
3923
3924 /* Initialize the RX Processor. */
3925 rc = load_cpu_fw(bp, &cpu_reg_rxp, &mips_fw->rxp);
3926 if (rc)
3927 goto init_cpu_err;
3928
3929 /* Initialize the TX Processor. */
3930 rc = load_cpu_fw(bp, &cpu_reg_txp, &mips_fw->txp);
3931 if (rc)
3932 goto init_cpu_err;
3933
3934 /* Initialize the TX Patch-up Processor. */
3935 rc = load_cpu_fw(bp, &cpu_reg_tpat, &mips_fw->tpat);
3936 if (rc)
3937 goto init_cpu_err;
3938
3939 /* Initialize the Completion Processor. */
3940 rc = load_cpu_fw(bp, &cpu_reg_com, &mips_fw->com);
3941 if (rc)
3942 goto init_cpu_err;
3943
3944 /* Initialize the Command Processor. */
3945 rc = load_cpu_fw(bp, &cpu_reg_cp, &mips_fw->cp);
3946
3947 init_cpu_err:
3948 return rc;
3949 }
3950
3951 static void
3952 bnx2_setup_wol(struct bnx2 *bp)
3953 {
3954 int i;
3955 u32 val, wol_msg;
3956
3957 if (bp->wol) {
3958 u32 advertising;
3959 u8 autoneg;
3960
3961 autoneg = bp->autoneg;
3962 advertising = bp->advertising;
3963
3964 if (bp->phy_port == PORT_TP) {
3965 bp->autoneg = AUTONEG_SPEED;
3966 bp->advertising = ADVERTISED_10baseT_Half |
3967 ADVERTISED_10baseT_Full |
3968 ADVERTISED_100baseT_Half |
3969 ADVERTISED_100baseT_Full |
3970 ADVERTISED_Autoneg;
3971 }
3972
3973 spin_lock_bh(&bp->phy_lock);
3974 bnx2_setup_phy(bp, bp->phy_port);
3975 spin_unlock_bh(&bp->phy_lock);
3976
3977 bp->autoneg = autoneg;
3978 bp->advertising = advertising;
3979
3980 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
3981
3982 val = BNX2_RD(bp, BNX2_EMAC_MODE);
3983
3984 /* Enable port mode. */
3985 val &= ~BNX2_EMAC_MODE_PORT;
3986 val |= BNX2_EMAC_MODE_MPKT_RCVD |
3987 BNX2_EMAC_MODE_ACPI_RCVD |
3988 BNX2_EMAC_MODE_MPKT;
3989 if (bp->phy_port == PORT_TP) {
3990 val |= BNX2_EMAC_MODE_PORT_MII;
3991 } else {
3992 val |= BNX2_EMAC_MODE_PORT_GMII;
3993 if (bp->line_speed == SPEED_2500)
3994 val |= BNX2_EMAC_MODE_25G_MODE;
3995 }
3996
3997 BNX2_WR(bp, BNX2_EMAC_MODE, val);
3998
3999 /* receive all multicast */
4000 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
4001 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
4002 0xffffffff);
4003 }
4004 BNX2_WR(bp, BNX2_EMAC_RX_MODE, BNX2_EMAC_RX_MODE_SORT_MODE);
4005
4006 val = 1 | BNX2_RPM_SORT_USER0_BC_EN | BNX2_RPM_SORT_USER0_MC_EN;
4007 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
4008 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val);
4009 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val | BNX2_RPM_SORT_USER0_ENA);
4010
4011 /* Need to enable EMAC and RPM for WOL. */
4012 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
4013 BNX2_MISC_ENABLE_SET_BITS_RX_PARSER_MAC_ENABLE |
4014 BNX2_MISC_ENABLE_SET_BITS_TX_HEADER_Q_ENABLE |
4015 BNX2_MISC_ENABLE_SET_BITS_EMAC_ENABLE);
4016
4017 val = BNX2_RD(bp, BNX2_RPM_CONFIG);
4018 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
4019 BNX2_WR(bp, BNX2_RPM_CONFIG, val);
4020
4021 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
4022 } else {
4023 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
4024 }
4025
4026 if (!(bp->flags & BNX2_FLAG_NO_WOL)) {
4027 u32 val;
4028
4029 wol_msg |= BNX2_DRV_MSG_DATA_WAIT3;
4030 if (bp->fw_last_msg || BNX2_CHIP(bp) != BNX2_CHIP_5709) {
4031 bnx2_fw_sync(bp, wol_msg, 1, 0);
4032 return;
4033 }
4034 /* Tell firmware not to power down the PHY yet, otherwise
4035 * the chip will take a long time to respond to MMIO reads.
4036 */
4037 val = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);
4038 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE,
4039 val | BNX2_PORT_FEATURE_ASF_ENABLED);
4040 bnx2_fw_sync(bp, wol_msg, 1, 0);
4041 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE, val);
4042 }
4043
4044 }
4045
4046 static int
4047 bnx2_set_power_state(struct bnx2 *bp, pci_power_t state)
4048 {
4049 switch (state) {
4050 case PCI_D0: {
4051 u32 val;
4052
4053 pci_enable_wake(bp->pdev, PCI_D0, false);
4054 pci_set_power_state(bp->pdev, PCI_D0);
4055
4056 val = BNX2_RD(bp, BNX2_EMAC_MODE);
4057 val |= BNX2_EMAC_MODE_MPKT_RCVD | BNX2_EMAC_MODE_ACPI_RCVD;
4058 val &= ~BNX2_EMAC_MODE_MPKT;
4059 BNX2_WR(bp, BNX2_EMAC_MODE, val);
4060
4061 val = BNX2_RD(bp, BNX2_RPM_CONFIG);
4062 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
4063 BNX2_WR(bp, BNX2_RPM_CONFIG, val);
4064 break;
4065 }
4066 case PCI_D3hot: {
4067 bnx2_setup_wol(bp);
4068 pci_wake_from_d3(bp->pdev, bp->wol);
4069 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
4070 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)) {
4071
4072 if (bp->wol)
4073 pci_set_power_state(bp->pdev, PCI_D3hot);
4074 break;
4075
4076 }
4077 if (!bp->fw_last_msg && BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4078 u32 val;
4079
4080 /* Tell firmware not to power down the PHY yet,
4081 * otherwise the other port may not respond to
4082 * MMIO reads.
4083 */
4084 val = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
4085 val &= ~BNX2_CONDITION_PM_STATE_MASK;
4086 val |= BNX2_CONDITION_PM_STATE_UNPREP;
4087 bnx2_shmem_wr(bp, BNX2_BC_STATE_CONDITION, val);
4088 }
4089 pci_set_power_state(bp->pdev, PCI_D3hot);
4090
4091 /* No more memory access after this point until
4092 * device is brought back to D0.
4093 */
4094 break;
4095 }
4096 default:
4097 return -EINVAL;
4098 }
4099 return 0;
4100 }
4101
4102 static int
4103 bnx2_acquire_nvram_lock(struct bnx2 *bp)
4104 {
4105 u32 val;
4106 int j;
4107
4108 /* Request access to the flash interface. */
4109 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_SET2);
4110 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4111 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
4112 if (val & BNX2_NVM_SW_ARB_ARB_ARB2)
4113 break;
4114
4115 udelay(5);
4116 }
4117
4118 if (j >= NVRAM_TIMEOUT_COUNT)
4119 return -EBUSY;
4120
4121 return 0;
4122 }
4123
4124 static int
4125 bnx2_release_nvram_lock(struct bnx2 *bp)
4126 {
4127 int j;
4128 u32 val;
4129
4130 /* Relinquish nvram interface. */
4131 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_CLR2);
4132
4133 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4134 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
4135 if (!(val & BNX2_NVM_SW_ARB_ARB_ARB2))
4136 break;
4137
4138 udelay(5);
4139 }
4140
4141 if (j >= NVRAM_TIMEOUT_COUNT)
4142 return -EBUSY;
4143
4144 return 0;
4145 }
4146
4147
4148 static int
4149 bnx2_enable_nvram_write(struct bnx2 *bp)
4150 {
4151 u32 val;
4152
4153 val = BNX2_RD(bp, BNX2_MISC_CFG);
4154 BNX2_WR(bp, BNX2_MISC_CFG, val | BNX2_MISC_CFG_NVM_WR_EN_PCI);
4155
4156 if (bp->flash_info->flags & BNX2_NV_WREN) {
4157 int j;
4158
4159 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4160 BNX2_WR(bp, BNX2_NVM_COMMAND,
4161 BNX2_NVM_COMMAND_WREN | BNX2_NVM_COMMAND_DOIT);
4162
4163 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4164 udelay(5);
4165
4166 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4167 if (val & BNX2_NVM_COMMAND_DONE)
4168 break;
4169 }
4170
4171 if (j >= NVRAM_TIMEOUT_COUNT)
4172 return -EBUSY;
4173 }
4174 return 0;
4175 }
4176
4177 static void
4178 bnx2_disable_nvram_write(struct bnx2 *bp)
4179 {
4180 u32 val;
4181
4182 val = BNX2_RD(bp, BNX2_MISC_CFG);
4183 BNX2_WR(bp, BNX2_MISC_CFG, val & ~BNX2_MISC_CFG_NVM_WR_EN);
4184 }
4185
4186
4187 static void
4188 bnx2_enable_nvram_access(struct bnx2 *bp)
4189 {
4190 u32 val;
4191
4192 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
4193 /* Enable both bits, even on read. */
4194 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
4195 val | BNX2_NVM_ACCESS_ENABLE_EN | BNX2_NVM_ACCESS_ENABLE_WR_EN);
4196 }
4197
4198 static void
4199 bnx2_disable_nvram_access(struct bnx2 *bp)
4200 {
4201 u32 val;
4202
4203 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
4204 /* Disable both bits, even after read. */
4205 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
4206 val & ~(BNX2_NVM_ACCESS_ENABLE_EN |
4207 BNX2_NVM_ACCESS_ENABLE_WR_EN));
4208 }
4209
4210 static int
4211 bnx2_nvram_erase_page(struct bnx2 *bp, u32 offset)
4212 {
4213 u32 cmd;
4214 int j;
4215
4216 if (bp->flash_info->flags & BNX2_NV_BUFFERED)
4217 /* Buffered flash, no erase needed */
4218 return 0;
4219
4220 /* Build an erase command */
4221 cmd = BNX2_NVM_COMMAND_ERASE | BNX2_NVM_COMMAND_WR |
4222 BNX2_NVM_COMMAND_DOIT;
4223
4224 /* Need to clear DONE bit separately. */
4225 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4226
4227 /* Address of the NVRAM to read from. */
4228 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4229
4230 /* Issue an erase command. */
4231 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4232
4233 /* Wait for completion. */
4234 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4235 u32 val;
4236
4237 udelay(5);
4238
4239 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4240 if (val & BNX2_NVM_COMMAND_DONE)
4241 break;
4242 }
4243
4244 if (j >= NVRAM_TIMEOUT_COUNT)
4245 return -EBUSY;
4246
4247 return 0;
4248 }
4249
4250 static int
4251 bnx2_nvram_read_dword(struct bnx2 *bp, u32 offset, u8 *ret_val, u32 cmd_flags)
4252 {
4253 u32 cmd;
4254 int j;
4255
4256 /* Build the command word. */
4257 cmd = BNX2_NVM_COMMAND_DOIT | cmd_flags;
4258
4259 /* Calculate an offset of a buffered flash, not needed for 5709. */
4260 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
4261 offset = ((offset / bp->flash_info->page_size) <<
4262 bp->flash_info->page_bits) +
4263 (offset % bp->flash_info->page_size);
4264 }
4265
4266 /* Need to clear DONE bit separately. */
4267 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4268
4269 /* Address of the NVRAM to read from. */
4270 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4271
4272 /* Issue a read command. */
4273 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4274
4275 /* Wait for completion. */
4276 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4277 u32 val;
4278
4279 udelay(5);
4280
4281 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4282 if (val & BNX2_NVM_COMMAND_DONE) {
4283 __be32 v = cpu_to_be32(BNX2_RD(bp, BNX2_NVM_READ));
4284 memcpy(ret_val, &v, 4);
4285 break;
4286 }
4287 }
4288 if (j >= NVRAM_TIMEOUT_COUNT)
4289 return -EBUSY;
4290
4291 return 0;
4292 }
4293
4294
4295 static int
4296 bnx2_nvram_write_dword(struct bnx2 *bp, u32 offset, u8 *val, u32 cmd_flags)
4297 {
4298 u32 cmd;
4299 __be32 val32;
4300 int j;
4301
4302 /* Build the command word. */
4303 cmd = BNX2_NVM_COMMAND_DOIT | BNX2_NVM_COMMAND_WR | cmd_flags;
4304
4305 /* Calculate an offset of a buffered flash, not needed for 5709. */
4306 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
4307 offset = ((offset / bp->flash_info->page_size) <<
4308 bp->flash_info->page_bits) +
4309 (offset % bp->flash_info->page_size);
4310 }
4311
4312 /* Need to clear DONE bit separately. */
4313 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4314
4315 memcpy(&val32, val, 4);
4316
4317 /* Write the data. */
4318 BNX2_WR(bp, BNX2_NVM_WRITE, be32_to_cpu(val32));
4319
4320 /* Address of the NVRAM to write to. */
4321 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4322
4323 /* Issue the write command. */
4324 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4325
4326 /* Wait for completion. */
4327 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4328 udelay(5);
4329
4330 if (BNX2_RD(bp, BNX2_NVM_COMMAND) & BNX2_NVM_COMMAND_DONE)
4331 break;
4332 }
4333 if (j >= NVRAM_TIMEOUT_COUNT)
4334 return -EBUSY;
4335
4336 return 0;
4337 }
4338
4339 static int
4340 bnx2_init_nvram(struct bnx2 *bp)
4341 {
4342 u32 val;
4343 int j, entry_count, rc = 0;
4344 const struct flash_spec *flash;
4345
4346 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4347 bp->flash_info = &flash_5709;
4348 goto get_flash_size;
4349 }
4350
4351 /* Determine the selected interface. */
4352 val = BNX2_RD(bp, BNX2_NVM_CFG1);
4353
4354 entry_count = ARRAY_SIZE(flash_table);
4355
4356 if (val & 0x40000000) {
4357
4358 /* Flash interface has been reconfigured */
4359 for (j = 0, flash = &flash_table[0]; j < entry_count;
4360 j++, flash++) {
4361 if ((val & FLASH_BACKUP_STRAP_MASK) ==
4362 (flash->config1 & FLASH_BACKUP_STRAP_MASK)) {
4363 bp->flash_info = flash;
4364 break;
4365 }
4366 }
4367 }
4368 else {
4369 u32 mask;
4370 /* Not yet been reconfigured */
4371
4372 if (val & (1 << 23))
4373 mask = FLASH_BACKUP_STRAP_MASK;
4374 else
4375 mask = FLASH_STRAP_MASK;
4376
4377 for (j = 0, flash = &flash_table[0]; j < entry_count;
4378 j++, flash++) {
4379
4380 if ((val & mask) == (flash->strapping & mask)) {
4381 bp->flash_info = flash;
4382
4383 /* Request access to the flash interface. */
4384 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4385 return rc;
4386
4387 /* Enable access to flash interface */
4388 bnx2_enable_nvram_access(bp);
4389
4390 /* Reconfigure the flash interface */
4391 BNX2_WR(bp, BNX2_NVM_CFG1, flash->config1);
4392 BNX2_WR(bp, BNX2_NVM_CFG2, flash->config2);
4393 BNX2_WR(bp, BNX2_NVM_CFG3, flash->config3);
4394 BNX2_WR(bp, BNX2_NVM_WRITE1, flash->write1);
4395
4396 /* Disable access to flash interface */
4397 bnx2_disable_nvram_access(bp);
4398 bnx2_release_nvram_lock(bp);
4399
4400 break;
4401 }
4402 }
4403 } /* if (val & 0x40000000) */
4404
4405 if (j == entry_count) {
4406 bp->flash_info = NULL;
4407 pr_alert("Unknown flash/EEPROM type\n");
4408 return -ENODEV;
4409 }
4410
4411 get_flash_size:
4412 val = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG2);
4413 val &= BNX2_SHARED_HW_CFG2_NVM_SIZE_MASK;
4414 if (val)
4415 bp->flash_size = val;
4416 else
4417 bp->flash_size = bp->flash_info->total_size;
4418
4419 return rc;
4420 }
4421
4422 static int
4423 bnx2_nvram_read(struct bnx2 *bp, u32 offset, u8 *ret_buf,
4424 int buf_size)
4425 {
4426 int rc = 0;
4427 u32 cmd_flags, offset32, len32, extra;
4428
4429 if (buf_size == 0)
4430 return 0;
4431
4432 /* Request access to the flash interface. */
4433 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4434 return rc;
4435
4436 /* Enable access to flash interface */
4437 bnx2_enable_nvram_access(bp);
4438
4439 len32 = buf_size;
4440 offset32 = offset;
4441 extra = 0;
4442
4443 cmd_flags = 0;
4444
4445 if (offset32 & 3) {
4446 u8 buf[4];
4447 u32 pre_len;
4448
4449 offset32 &= ~3;
4450 pre_len = 4 - (offset & 3);
4451
4452 if (pre_len >= len32) {
4453 pre_len = len32;
4454 cmd_flags = BNX2_NVM_COMMAND_FIRST |
4455 BNX2_NVM_COMMAND_LAST;
4456 }
4457 else {
4458 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4459 }
4460
4461 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4462
4463 if (rc)
4464 return rc;
4465
4466 memcpy(ret_buf, buf + (offset & 3), pre_len);
4467
4468 offset32 += 4;
4469 ret_buf += pre_len;
4470 len32 -= pre_len;
4471 }
4472 if (len32 & 3) {
4473 extra = 4 - (len32 & 3);
4474 len32 = (len32 + 4) & ~3;
4475 }
4476
4477 if (len32 == 4) {
4478 u8 buf[4];
4479
4480 if (cmd_flags)
4481 cmd_flags = BNX2_NVM_COMMAND_LAST;
4482 else
4483 cmd_flags = BNX2_NVM_COMMAND_FIRST |
4484 BNX2_NVM_COMMAND_LAST;
4485
4486 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4487
4488 memcpy(ret_buf, buf, 4 - extra);
4489 }
4490 else if (len32 > 0) {
4491 u8 buf[4];
4492
4493 /* Read the first word. */
4494 if (cmd_flags)
4495 cmd_flags = 0;
4496 else
4497 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4498
4499 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, cmd_flags);
4500
4501 /* Advance to the next dword. */
4502 offset32 += 4;
4503 ret_buf += 4;
4504 len32 -= 4;
4505
4506 while (len32 > 4 && rc == 0) {
4507 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, 0);
4508
4509 /* Advance to the next dword. */
4510 offset32 += 4;
4511 ret_buf += 4;
4512 len32 -= 4;
4513 }
4514
4515 if (rc)
4516 return rc;
4517
4518 cmd_flags = BNX2_NVM_COMMAND_LAST;
4519 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4520
4521 memcpy(ret_buf, buf, 4 - extra);
4522 }
4523
4524 /* Disable access to flash interface */
4525 bnx2_disable_nvram_access(bp);
4526
4527 bnx2_release_nvram_lock(bp);
4528
4529 return rc;
4530 }
4531
4532 static int
4533 bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf,
4534 int buf_size)
4535 {
4536 u32 written, offset32, len32;
4537 u8 *buf, start[4], end[4], *align_buf = NULL, *flash_buffer = NULL;
4538 int rc = 0;
4539 int align_start, align_end;
4540
4541 buf = data_buf;
4542 offset32 = offset;
4543 len32 = buf_size;
4544 align_start = align_end = 0;
4545
4546 if ((align_start = (offset32 & 3))) {
4547 offset32 &= ~3;
4548 len32 += align_start;
4549 if (len32 < 4)
4550 len32 = 4;
4551 if ((rc = bnx2_nvram_read(bp, offset32, start, 4)))
4552 return rc;
4553 }
4554
4555 if (len32 & 3) {
4556 align_end = 4 - (len32 & 3);
4557 len32 += align_end;
4558 if ((rc = bnx2_nvram_read(bp, offset32 + len32 - 4, end, 4)))
4559 return rc;
4560 }
4561
4562 if (align_start || align_end) {
4563 align_buf = kmalloc(len32, GFP_KERNEL);
4564 if (align_buf == NULL)
4565 return -ENOMEM;
4566 if (align_start) {
4567 memcpy(align_buf, start, 4);
4568 }
4569 if (align_end) {
4570 memcpy(align_buf + len32 - 4, end, 4);
4571 }
4572 memcpy(align_buf + align_start, data_buf, buf_size);
4573 buf = align_buf;
4574 }
4575
4576 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4577 flash_buffer = kmalloc(264, GFP_KERNEL);
4578 if (flash_buffer == NULL) {
4579 rc = -ENOMEM;
4580 goto nvram_write_end;
4581 }
4582 }
4583
4584 written = 0;
4585 while ((written < len32) && (rc == 0)) {
4586 u32 page_start, page_end, data_start, data_end;
4587 u32 addr, cmd_flags;
4588 int i;
4589
4590 /* Find the page_start addr */
4591 page_start = offset32 + written;
4592 page_start -= (page_start % bp->flash_info->page_size);
4593 /* Find the page_end addr */
4594 page_end = page_start + bp->flash_info->page_size;
4595 /* Find the data_start addr */
4596 data_start = (written == 0) ? offset32 : page_start;
4597 /* Find the data_end addr */
4598 data_end = (page_end > offset32 + len32) ?
4599 (offset32 + len32) : page_end;
4600
4601 /* Request access to the flash interface. */
4602 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4603 goto nvram_write_end;
4604
4605 /* Enable access to flash interface */
4606 bnx2_enable_nvram_access(bp);
4607
4608 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4609 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4610 int j;
4611
4612 /* Read the whole page into the buffer
4613 * (non-buffer flash only) */
4614 for (j = 0; j < bp->flash_info->page_size; j += 4) {
4615 if (j == (bp->flash_info->page_size - 4)) {
4616 cmd_flags |= BNX2_NVM_COMMAND_LAST;
4617 }
4618 rc = bnx2_nvram_read_dword(bp,
4619 page_start + j,
4620 &flash_buffer[j],
4621 cmd_flags);
4622
4623 if (rc)
4624 goto nvram_write_end;
4625
4626 cmd_flags = 0;
4627 }
4628 }
4629
4630 /* Enable writes to flash interface (unlock write-protect) */
4631 if ((rc = bnx2_enable_nvram_write(bp)) != 0)
4632 goto nvram_write_end;
4633
4634 /* Loop to write back the buffer data from page_start to
4635 * data_start */
4636 i = 0;
4637 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4638 /* Erase the page */
4639 if ((rc = bnx2_nvram_erase_page(bp, page_start)) != 0)
4640 goto nvram_write_end;
4641
4642 /* Re-enable the write again for the actual write */
4643 bnx2_enable_nvram_write(bp);
4644
4645 for (addr = page_start; addr < data_start;
4646 addr += 4, i += 4) {
4647
4648 rc = bnx2_nvram_write_dword(bp, addr,
4649 &flash_buffer[i], cmd_flags);
4650
4651 if (rc != 0)
4652 goto nvram_write_end;
4653
4654 cmd_flags = 0;
4655 }
4656 }
4657
4658 /* Loop to write the new data from data_start to data_end */
4659 for (addr = data_start; addr < data_end; addr += 4, i += 4) {
4660 if ((addr == page_end - 4) ||
4661 ((bp->flash_info->flags & BNX2_NV_BUFFERED) &&
4662 (addr == data_end - 4))) {
4663
4664 cmd_flags |= BNX2_NVM_COMMAND_LAST;
4665 }
4666 rc = bnx2_nvram_write_dword(bp, addr, buf,
4667 cmd_flags);
4668
4669 if (rc != 0)
4670 goto nvram_write_end;
4671
4672 cmd_flags = 0;
4673 buf += 4;
4674 }
4675
4676 /* Loop to write back the buffer data from data_end
4677 * to page_end */
4678 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4679 for (addr = data_end; addr < page_end;
4680 addr += 4, i += 4) {
4681
4682 if (addr == page_end-4) {
4683 cmd_flags = BNX2_NVM_COMMAND_LAST;
4684 }
4685 rc = bnx2_nvram_write_dword(bp, addr,
4686 &flash_buffer[i], cmd_flags);
4687
4688 if (rc != 0)
4689 goto nvram_write_end;
4690
4691 cmd_flags = 0;
4692 }
4693 }
4694
4695 /* Disable writes to flash interface (lock write-protect) */
4696 bnx2_disable_nvram_write(bp);
4697
4698 /* Disable access to flash interface */
4699 bnx2_disable_nvram_access(bp);
4700 bnx2_release_nvram_lock(bp);
4701
4702 /* Increment written */
4703 written += data_end - data_start;
4704 }
4705
4706 nvram_write_end:
4707 kfree(flash_buffer);
4708 kfree(align_buf);
4709 return rc;
4710 }
4711
4712 static void
4713 bnx2_init_fw_cap(struct bnx2 *bp)
4714 {
4715 u32 val, sig = 0;
4716
4717 bp->phy_flags &= ~BNX2_PHY_FLAG_REMOTE_PHY_CAP;
4718 bp->flags &= ~BNX2_FLAG_CAN_KEEP_VLAN;
4719
4720 if (!(bp->flags & BNX2_FLAG_ASF_ENABLE))
4721 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
4722
4723 val = bnx2_shmem_rd(bp, BNX2_FW_CAP_MB);
4724 if ((val & BNX2_FW_CAP_SIGNATURE_MASK) != BNX2_FW_CAP_SIGNATURE)
4725 return;
4726
4727 if ((val & BNX2_FW_CAP_CAN_KEEP_VLAN) == BNX2_FW_CAP_CAN_KEEP_VLAN) {
4728 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
4729 sig |= BNX2_DRV_ACK_CAP_SIGNATURE | BNX2_FW_CAP_CAN_KEEP_VLAN;
4730 }
4731
4732 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
4733 (val & BNX2_FW_CAP_REMOTE_PHY_CAPABLE)) {
4734 u32 link;
4735
4736 bp->phy_flags |= BNX2_PHY_FLAG_REMOTE_PHY_CAP;
4737
4738 link = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
4739 if (link & BNX2_LINK_STATUS_SERDES_LINK)
4740 bp->phy_port = PORT_FIBRE;
4741 else
4742 bp->phy_port = PORT_TP;
4743
4744 sig |= BNX2_DRV_ACK_CAP_SIGNATURE |
4745 BNX2_FW_CAP_REMOTE_PHY_CAPABLE;
4746 }
4747
4748 if (netif_running(bp->dev) && sig)
4749 bnx2_shmem_wr(bp, BNX2_DRV_ACK_CAP_MB, sig);
4750 }
4751
4752 static void
4753 bnx2_setup_msix_tbl(struct bnx2 *bp)
4754 {
4755 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW_ADDR, BNX2_PCI_GRC_WINDOW_ADDR_SEP_WIN);
4756
4757 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW2_ADDR, BNX2_MSIX_TABLE_ADDR);
4758 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW3_ADDR, BNX2_MSIX_PBA_ADDR);
4759 }
4760
4761 static void
4762 bnx2_wait_dma_complete(struct bnx2 *bp)
4763 {
4764 u32 val;
4765 int i;
4766
4767 /*
4768 * Wait for the current PCI transaction to complete before
4769 * issuing a reset.
4770 */
4771 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||
4772 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {
4773 BNX2_WR(bp, BNX2_MISC_ENABLE_CLR_BITS,
4774 BNX2_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE |
4775 BNX2_MISC_ENABLE_CLR_BITS_DMA_ENGINE_ENABLE |
4776 BNX2_MISC_ENABLE_CLR_BITS_RX_DMA_ENABLE |
4777 BNX2_MISC_ENABLE_CLR_BITS_HOST_COALESCE_ENABLE);
4778 val = BNX2_RD(bp, BNX2_MISC_ENABLE_CLR_BITS);
4779 udelay(5);
4780 } else { /* 5709 */
4781 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
4782 val &= ~BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
4783 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
4784 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
4785
4786 for (i = 0; i < 100; i++) {
4787 msleep(1);
4788 val = BNX2_RD(bp, BNX2_PCICFG_DEVICE_CONTROL);
4789 if (!(val & BNX2_PCICFG_DEVICE_STATUS_NO_PEND))
4790 break;
4791 }
4792 }
4793
4794 return;
4795 }
4796
4797
4798 static int
4799 bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
4800 {
4801 u32 val;
4802 int i, rc = 0;
4803 u8 old_port;
4804
4805 /* Wait for the current PCI transaction to complete before
4806 * issuing a reset. */
4807 bnx2_wait_dma_complete(bp);
4808
4809 /* Wait for the firmware to tell us it is ok to issue a reset. */
4810 bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT0 | reset_code, 1, 1);
4811
4812 /* Deposit a driver reset signature so the firmware knows that
4813 * this is a soft reset. */
4814 bnx2_shmem_wr(bp, BNX2_DRV_RESET_SIGNATURE,
4815 BNX2_DRV_RESET_SIGNATURE_MAGIC);
4816
4817 /* Do a dummy read to force the chip to complete all current transaction
4818 * before we issue a reset. */
4819 val = BNX2_RD(bp, BNX2_MISC_ID);
4820
4821 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4822 BNX2_WR(bp, BNX2_MISC_COMMAND, BNX2_MISC_COMMAND_SW_RESET);
4823 BNX2_RD(bp, BNX2_MISC_COMMAND);
4824 udelay(5);
4825
4826 val = BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
4827 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
4828
4829 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
4830
4831 } else {
4832 val = BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4833 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
4834 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
4835
4836 /* Chip reset. */
4837 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
4838
4839 /* Reading back any register after chip reset will hang the
4840 * bus on 5706 A0 and A1. The msleep below provides plenty
4841 * of margin for write posting.
4842 */
4843 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
4844 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1))
4845 msleep(20);
4846
4847 /* Reset takes approximate 30 usec */
4848 for (i = 0; i < 10; i++) {
4849 val = BNX2_RD(bp, BNX2_PCICFG_MISC_CONFIG);
4850 if ((val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4851 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) == 0)
4852 break;
4853 udelay(10);
4854 }
4855
4856 if (val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4857 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) {
4858 pr_err("Chip reset did not complete\n");
4859 return -EBUSY;
4860 }
4861 }
4862
4863 /* Make sure byte swapping is properly configured. */
4864 val = BNX2_RD(bp, BNX2_PCI_SWAP_DIAG0);
4865 if (val != 0x01020304) {
4866 pr_err("Chip not in correct endian mode\n");
4867 return -ENODEV;
4868 }
4869
4870 /* Wait for the firmware to finish its initialization. */
4871 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT1 | reset_code, 1, 0);
4872 if (rc)
4873 return rc;
4874
4875 spin_lock_bh(&bp->phy_lock);
4876 old_port = bp->phy_port;
4877 bnx2_init_fw_cap(bp);
4878 if ((bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) &&
4879 old_port != bp->phy_port)
4880 bnx2_set_default_remote_link(bp);
4881 spin_unlock_bh(&bp->phy_lock);
4882
4883 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
4884 /* Adjust the voltage regular to two steps lower. The default
4885 * of this register is 0x0000000e. */
4886 BNX2_WR(bp, BNX2_MISC_VREG_CONTROL, 0x000000fa);
4887
4888 /* Remove bad rbuf memory from the free pool. */
4889 rc = bnx2_alloc_bad_rbuf(bp);
4890 }
4891
4892 if (bp->flags & BNX2_FLAG_USING_MSIX) {
4893 bnx2_setup_msix_tbl(bp);
4894 /* Prevent MSIX table reads and write from timing out */
4895 BNX2_WR(bp, BNX2_MISC_ECO_HW_CTL,
4896 BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);
4897 }
4898
4899 return rc;
4900 }
4901
4902 static int
4903 bnx2_init_chip(struct bnx2 *bp)
4904 {
4905 u32 val, mtu;
4906 int rc, i;
4907
4908 /* Make sure the interrupt is not active. */
4909 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4910
4911 val = BNX2_DMA_CONFIG_DATA_BYTE_SWAP |
4912 BNX2_DMA_CONFIG_DATA_WORD_SWAP |
4913 #ifdef __BIG_ENDIAN
4914 BNX2_DMA_CONFIG_CNTL_BYTE_SWAP |
4915 #endif
4916 BNX2_DMA_CONFIG_CNTL_WORD_SWAP |
4917 DMA_READ_CHANS << 12 |
4918 DMA_WRITE_CHANS << 16;
4919
4920 val |= (0x2 << 20) | (1 << 11);
4921
4922 if ((bp->flags & BNX2_FLAG_PCIX) && (bp->bus_speed_mhz == 133))
4923 val |= (1 << 23);
4924
4925 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) &&
4926 (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0) &&
4927 !(bp->flags & BNX2_FLAG_PCIX))
4928 val |= BNX2_DMA_CONFIG_CNTL_PING_PONG_DMA;
4929
4930 BNX2_WR(bp, BNX2_DMA_CONFIG, val);
4931
4932 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
4933 val = BNX2_RD(bp, BNX2_TDMA_CONFIG);
4934 val |= BNX2_TDMA_CONFIG_ONE_DMA;
4935 BNX2_WR(bp, BNX2_TDMA_CONFIG, val);
4936 }
4937
4938 if (bp->flags & BNX2_FLAG_PCIX) {
4939 u16 val16;
4940
4941 pci_read_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
4942 &val16);
4943 pci_write_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
4944 val16 & ~PCI_X_CMD_ERO);
4945 }
4946
4947 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
4948 BNX2_MISC_ENABLE_SET_BITS_HOST_COALESCE_ENABLE |
4949 BNX2_MISC_ENABLE_STATUS_BITS_RX_V2P_ENABLE |
4950 BNX2_MISC_ENABLE_STATUS_BITS_CONTEXT_ENABLE);
4951
4952 /* Initialize context mapping and zero out the quick contexts. The
4953 * context block must have already been enabled. */
4954 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4955 rc = bnx2_init_5709_context(bp);
4956 if (rc)
4957 return rc;
4958 } else
4959 bnx2_init_context(bp);
4960
4961 if ((rc = bnx2_init_cpus(bp)) != 0)
4962 return rc;
4963
4964 bnx2_init_nvram(bp);
4965
4966 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
4967
4968 val = BNX2_RD(bp, BNX2_MQ_CONFIG);
4969 val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4970 val |= BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;
4971 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4972 val |= BNX2_MQ_CONFIG_BIN_MQ_MODE;
4973 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)
4974 val |= BNX2_MQ_CONFIG_HALT_DIS;
4975 }
4976
4977 BNX2_WR(bp, BNX2_MQ_CONFIG, val);
4978
4979 val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);
4980 BNX2_WR(bp, BNX2_MQ_KNL_BYP_WIND_START, val);
4981 BNX2_WR(bp, BNX2_MQ_KNL_WIND_END, val);
4982
4983 val = (BNX2_PAGE_BITS - 8) << 24;
4984 BNX2_WR(bp, BNX2_RV2P_CONFIG, val);
4985
4986 /* Configure page size. */
4987 val = BNX2_RD(bp, BNX2_TBDR_CONFIG);
4988 val &= ~BNX2_TBDR_CONFIG_PAGE_SIZE;
4989 val |= (BNX2_PAGE_BITS - 8) << 24 | 0x40;
4990 BNX2_WR(bp, BNX2_TBDR_CONFIG, val);
4991
4992 val = bp->mac_addr[0] +
4993 (bp->mac_addr[1] << 8) +
4994 (bp->mac_addr[2] << 16) +
4995 bp->mac_addr[3] +
4996 (bp->mac_addr[4] << 8) +
4997 (bp->mac_addr[5] << 16);
4998 BNX2_WR(bp, BNX2_EMAC_BACKOFF_SEED, val);
4999
5000 /* Program the MTU. Also include 4 bytes for CRC32. */
5001 mtu = bp->dev->mtu;
5002 val = mtu + ETH_HLEN + ETH_FCS_LEN;
5003 if (val > (MAX_ETHERNET_PACKET_SIZE + ETH_HLEN + 4))
5004 val |= BNX2_EMAC_RX_MTU_SIZE_JUMBO_ENA;
5005 BNX2_WR(bp, BNX2_EMAC_RX_MTU_SIZE, val);
5006
5007 if (mtu < ETH_DATA_LEN)
5008 mtu = ETH_DATA_LEN;
5009
5010 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG, BNX2_RBUF_CONFIG_VAL(mtu));
5011 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG2, BNX2_RBUF_CONFIG2_VAL(mtu));
5012 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG3, BNX2_RBUF_CONFIG3_VAL(mtu));
5013
5014 memset(bp->bnx2_napi[0].status_blk.msi, 0, bp->status_stats_size);
5015 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
5016 bp->bnx2_napi[i].last_status_idx = 0;
5017
5018 bp->idle_chk_status_idx = 0xffff;
5019
5020 /* Set up how to generate a link change interrupt. */
5021 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
5022
5023 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_L,
5024 (u64) bp->status_blk_mapping & 0xffffffff);
5025 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_H, (u64) bp->status_blk_mapping >> 32);
5026
5027 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_L,
5028 (u64) bp->stats_blk_mapping & 0xffffffff);
5029 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_H,
5030 (u64) bp->stats_blk_mapping >> 32);
5031
5032 BNX2_WR(bp, BNX2_HC_TX_QUICK_CONS_TRIP,
5033 (bp->tx_quick_cons_trip_int << 16) | bp->tx_quick_cons_trip);
5034
5035 BNX2_WR(bp, BNX2_HC_RX_QUICK_CONS_TRIP,
5036 (bp->rx_quick_cons_trip_int << 16) | bp->rx_quick_cons_trip);
5037
5038 BNX2_WR(bp, BNX2_HC_COMP_PROD_TRIP,
5039 (bp->comp_prod_trip_int << 16) | bp->comp_prod_trip);
5040
5041 BNX2_WR(bp, BNX2_HC_TX_TICKS, (bp->tx_ticks_int << 16) | bp->tx_ticks);
5042
5043 BNX2_WR(bp, BNX2_HC_RX_TICKS, (bp->rx_ticks_int << 16) | bp->rx_ticks);
5044
5045 BNX2_WR(bp, BNX2_HC_COM_TICKS,
5046 (bp->com_ticks_int << 16) | bp->com_ticks);
5047
5048 BNX2_WR(bp, BNX2_HC_CMD_TICKS,
5049 (bp->cmd_ticks_int << 16) | bp->cmd_ticks);
5050
5051 if (bp->flags & BNX2_FLAG_BROKEN_STATS)
5052 BNX2_WR(bp, BNX2_HC_STATS_TICKS, 0);
5053 else
5054 BNX2_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks);
5055 BNX2_WR(bp, BNX2_HC_STAT_COLLECT_TICKS, 0xbb8); /* 3ms */
5056
5057 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)
5058 val = BNX2_HC_CONFIG_COLLECT_STATS;
5059 else {
5060 val = BNX2_HC_CONFIG_RX_TMR_MODE | BNX2_HC_CONFIG_TX_TMR_MODE |
5061 BNX2_HC_CONFIG_COLLECT_STATS;
5062 }
5063
5064 if (bp->flags & BNX2_FLAG_USING_MSIX) {
5065 BNX2_WR(bp, BNX2_HC_MSIX_BIT_VECTOR,
5066 BNX2_HC_MSIX_BIT_VECTOR_VAL);
5067
5068 val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B;
5069 }
5070
5071 if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI)
5072 val |= BNX2_HC_CONFIG_ONE_SHOT | BNX2_HC_CONFIG_USE_INT_PARAM;
5073
5074 BNX2_WR(bp, BNX2_HC_CONFIG, val);
5075
5076 if (bp->rx_ticks < 25)
5077 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 1);
5078 else
5079 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 0);
5080
5081 for (i = 1; i < bp->irq_nvecs; i++) {
5082 u32 base = ((i - 1) * BNX2_HC_SB_CONFIG_SIZE) +
5083 BNX2_HC_SB_CONFIG_1;
5084
5085 BNX2_WR(bp, base,
5086 BNX2_HC_SB_CONFIG_1_TX_TMR_MODE |
5087 BNX2_HC_SB_CONFIG_1_RX_TMR_MODE |
5088 BNX2_HC_SB_CONFIG_1_ONE_SHOT);
5089
5090 BNX2_WR(bp, base + BNX2_HC_TX_QUICK_CONS_TRIP_OFF,
5091 (bp->tx_quick_cons_trip_int << 16) |
5092 bp->tx_quick_cons_trip);
5093
5094 BNX2_WR(bp, base + BNX2_HC_TX_TICKS_OFF,
5095 (bp->tx_ticks_int << 16) | bp->tx_ticks);
5096
5097 BNX2_WR(bp, base + BNX2_HC_RX_QUICK_CONS_TRIP_OFF,
5098 (bp->rx_quick_cons_trip_int << 16) |
5099 bp->rx_quick_cons_trip);
5100
5101 BNX2_WR(bp, base + BNX2_HC_RX_TICKS_OFF,
5102 (bp->rx_ticks_int << 16) | bp->rx_ticks);
5103 }
5104
5105 /* Clear internal stats counters. */
5106 BNX2_WR(bp, BNX2_HC_COMMAND, BNX2_HC_COMMAND_CLR_STAT_NOW);
5107
5108 BNX2_WR(bp, BNX2_HC_ATTN_BITS_ENABLE, STATUS_ATTN_EVENTS);
5109
5110 /* Initialize the receive filter. */
5111 bnx2_set_rx_mode(bp->dev);
5112
5113 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5114 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
5115 val |= BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
5116 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
5117 }
5118 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT2 | BNX2_DRV_MSG_CODE_RESET,
5119 1, 0);
5120
5121 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS, BNX2_MISC_ENABLE_DEFAULT);
5122 BNX2_RD(bp, BNX2_MISC_ENABLE_SET_BITS);
5123
5124 udelay(20);
5125
5126 bp->hc_cmd = BNX2_RD(bp, BNX2_HC_COMMAND);
5127
5128 return rc;
5129 }
5130
5131 static void
5132 bnx2_clear_ring_states(struct bnx2 *bp)
5133 {
5134 struct bnx2_napi *bnapi;
5135 struct bnx2_tx_ring_info *txr;
5136 struct bnx2_rx_ring_info *rxr;
5137 int i;
5138
5139 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
5140 bnapi = &bp->bnx2_napi[i];
5141 txr = &bnapi->tx_ring;
5142 rxr = &bnapi->rx_ring;
5143
5144 txr->tx_cons = 0;
5145 txr->hw_tx_cons = 0;
5146 rxr->rx_prod_bseq = 0;
5147 rxr->rx_prod = 0;
5148 rxr->rx_cons = 0;
5149 rxr->rx_pg_prod = 0;
5150 rxr->rx_pg_cons = 0;
5151 }
5152 }
5153
5154 static void
5155 bnx2_init_tx_context(struct bnx2 *bp, u32 cid, struct bnx2_tx_ring_info *txr)
5156 {
5157 u32 val, offset0, offset1, offset2, offset3;
5158 u32 cid_addr = GET_CID_ADDR(cid);
5159
5160 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5161 offset0 = BNX2_L2CTX_TYPE_XI;
5162 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
5163 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
5164 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
5165 } else {
5166 offset0 = BNX2_L2CTX_TYPE;
5167 offset1 = BNX2_L2CTX_CMD_TYPE;
5168 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
5169 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
5170 }
5171 val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
5172 bnx2_ctx_wr(bp, cid_addr, offset0, val);
5173
5174 val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
5175 bnx2_ctx_wr(bp, cid_addr, offset1, val);
5176
5177 val = (u64) txr->tx_desc_mapping >> 32;
5178 bnx2_ctx_wr(bp, cid_addr, offset2, val);
5179
5180 val = (u64) txr->tx_desc_mapping & 0xffffffff;
5181 bnx2_ctx_wr(bp, cid_addr, offset3, val);
5182 }
5183
5184 static void
5185 bnx2_init_tx_ring(struct bnx2 *bp, int ring_num)
5186 {
5187 struct bnx2_tx_bd *txbd;
5188 u32 cid = TX_CID;
5189 struct bnx2_napi *bnapi;
5190 struct bnx2_tx_ring_info *txr;
5191
5192 bnapi = &bp->bnx2_napi[ring_num];
5193 txr = &bnapi->tx_ring;
5194
5195 if (ring_num == 0)
5196 cid = TX_CID;
5197 else
5198 cid = TX_TSS_CID + ring_num - 1;
5199
5200 bp->tx_wake_thresh = bp->tx_ring_size / 2;
5201
5202 txbd = &txr->tx_desc_ring[BNX2_MAX_TX_DESC_CNT];
5203
5204 txbd->tx_bd_haddr_hi = (u64) txr->tx_desc_mapping >> 32;
5205 txbd->tx_bd_haddr_lo = (u64) txr->tx_desc_mapping & 0xffffffff;
5206
5207 txr->tx_prod = 0;
5208 txr->tx_prod_bseq = 0;
5209
5210 txr->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;
5211 txr->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;
5212
5213 bnx2_init_tx_context(bp, cid, txr);
5214 }
5215
5216 static void
5217 bnx2_init_rxbd_rings(struct bnx2_rx_bd *rx_ring[], dma_addr_t dma[],
5218 u32 buf_size, int num_rings)
5219 {
5220 int i;
5221 struct bnx2_rx_bd *rxbd;
5222
5223 for (i = 0; i < num_rings; i++) {
5224 int j;
5225
5226 rxbd = &rx_ring[i][0];
5227 for (j = 0; j < BNX2_MAX_RX_DESC_CNT; j++, rxbd++) {
5228 rxbd->rx_bd_len = buf_size;
5229 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
5230 }
5231 if (i == (num_rings - 1))
5232 j = 0;
5233 else
5234 j = i + 1;
5235 rxbd->rx_bd_haddr_hi = (u64) dma[j] >> 32;
5236 rxbd->rx_bd_haddr_lo = (u64) dma[j] & 0xffffffff;
5237 }
5238 }
5239
5240 static void
5241 bnx2_init_rx_ring(struct bnx2 *bp, int ring_num)
5242 {
5243 int i;
5244 u16 prod, ring_prod;
5245 u32 cid, rx_cid_addr, val;
5246 struct bnx2_napi *bnapi = &bp->bnx2_napi[ring_num];
5247 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
5248
5249 if (ring_num == 0)
5250 cid = RX_CID;
5251 else
5252 cid = RX_RSS_CID + ring_num - 1;
5253
5254 rx_cid_addr = GET_CID_ADDR(cid);
5255
5256 bnx2_init_rxbd_rings(rxr->rx_desc_ring, rxr->rx_desc_mapping,
5257 bp->rx_buf_use_size, bp->rx_max_ring);
5258
5259 bnx2_init_rx_context(bp, cid);
5260
5261 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5262 val = BNX2_RD(bp, BNX2_MQ_MAP_L2_5);
5263 BNX2_WR(bp, BNX2_MQ_MAP_L2_5, val | BNX2_MQ_MAP_L2_5_ARM);
5264 }
5265
5266 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, 0);
5267 if (bp->rx_pg_ring_size) {
5268 bnx2_init_rxbd_rings(rxr->rx_pg_desc_ring,
5269 rxr->rx_pg_desc_mapping,
5270 PAGE_SIZE, bp->rx_max_pg_ring);
5271 val = (bp->rx_buf_use_size << 16) | PAGE_SIZE;
5272 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, val);
5273 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_RBDC_KEY,
5274 BNX2_L2CTX_RBDC_JUMBO_KEY - ring_num);
5275
5276 val = (u64) rxr->rx_pg_desc_mapping[0] >> 32;
5277 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_HI, val);
5278
5279 val = (u64) rxr->rx_pg_desc_mapping[0] & 0xffffffff;
5280 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_LO, val);
5281
5282 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5283 BNX2_WR(bp, BNX2_MQ_MAP_L2_3, BNX2_MQ_MAP_L2_3_DEFAULT);
5284 }
5285
5286 val = (u64) rxr->rx_desc_mapping[0] >> 32;
5287 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
5288
5289 val = (u64) rxr->rx_desc_mapping[0] & 0xffffffff;
5290 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
5291
5292 ring_prod = prod = rxr->rx_pg_prod;
5293 for (i = 0; i < bp->rx_pg_ring_size; i++) {
5294 if (bnx2_alloc_rx_page(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
5295 netdev_warn(bp->dev, "init'ed rx page ring %d with %d/%d pages only\n",
5296 ring_num, i, bp->rx_pg_ring_size);
5297 break;
5298 }
5299 prod = BNX2_NEXT_RX_BD(prod);
5300 ring_prod = BNX2_RX_PG_RING_IDX(prod);
5301 }
5302 rxr->rx_pg_prod = prod;
5303
5304 ring_prod = prod = rxr->rx_prod;
5305 for (i = 0; i < bp->rx_ring_size; i++) {
5306 if (bnx2_alloc_rx_data(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
5307 netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d skbs only\n",
5308 ring_num, i, bp->rx_ring_size);
5309 break;
5310 }
5311 prod = BNX2_NEXT_RX_BD(prod);
5312 ring_prod = BNX2_RX_RING_IDX(prod);
5313 }
5314 rxr->rx_prod = prod;
5315
5316 rxr->rx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BDIDX;
5317 rxr->rx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BSEQ;
5318 rxr->rx_pg_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_PG_BDIDX;
5319
5320 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
5321 BNX2_WR16(bp, rxr->rx_bidx_addr, prod);
5322
5323 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
5324 }
5325
5326 static void
5327 bnx2_init_all_rings(struct bnx2 *bp)
5328 {
5329 int i;
5330 u32 val;
5331
5332 bnx2_clear_ring_states(bp);
5333
5334 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, 0);
5335 for (i = 0; i < bp->num_tx_rings; i++)
5336 bnx2_init_tx_ring(bp, i);
5337
5338 if (bp->num_tx_rings > 1)
5339 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) |
5340 (TX_TSS_CID << 7));
5341
5342 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, 0);
5343 bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, 0);
5344
5345 for (i = 0; i < bp->num_rx_rings; i++)
5346 bnx2_init_rx_ring(bp, i);
5347
5348 if (bp->num_rx_rings > 1) {
5349 u32 tbl_32 = 0;
5350
5351 for (i = 0; i < BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES; i++) {
5352 int shift = (i % 8) << 2;
5353
5354 tbl_32 |= (i % (bp->num_rx_rings - 1)) << shift;
5355 if ((i % 8) == 7) {
5356 BNX2_WR(bp, BNX2_RLUP_RSS_DATA, tbl_32);
5357 BNX2_WR(bp, BNX2_RLUP_RSS_COMMAND, (i >> 3) |
5358 BNX2_RLUP_RSS_COMMAND_RSS_WRITE_MASK |
5359 BNX2_RLUP_RSS_COMMAND_WRITE |
5360 BNX2_RLUP_RSS_COMMAND_HASH_MASK);
5361 tbl_32 = 0;
5362 }
5363 }
5364
5365 val = BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI |
5366 BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI;
5367
5368 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, val);
5369
5370 }
5371 }
5372
5373 static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size)
5374 {
5375 u32 max, num_rings = 1;
5376
5377 while (ring_size > BNX2_MAX_RX_DESC_CNT) {
5378 ring_size -= BNX2_MAX_RX_DESC_CNT;
5379 num_rings++;
5380 }
5381 /* round to next power of 2 */
5382 max = max_size;
5383 while ((max & num_rings) == 0)
5384 max >>= 1;
5385
5386 if (num_rings != max)
5387 max <<= 1;
5388
5389 return max;
5390 }
5391
5392 static void
5393 bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)
5394 {
5395 u32 rx_size, rx_space, jumbo_size;
5396
5397 /* 8 for CRC and VLAN */
5398 rx_size = bp->dev->mtu + ETH_HLEN + BNX2_RX_OFFSET + 8;
5399
5400 rx_space = SKB_DATA_ALIGN(rx_size + BNX2_RX_ALIGN) + NET_SKB_PAD +
5401 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
5402
5403 bp->rx_copy_thresh = BNX2_RX_COPY_THRESH;
5404 bp->rx_pg_ring_size = 0;
5405 bp->rx_max_pg_ring = 0;
5406 bp->rx_max_pg_ring_idx = 0;
5407 if ((rx_space > PAGE_SIZE) && !(bp->flags & BNX2_FLAG_JUMBO_BROKEN)) {
5408 int pages = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
5409
5410 jumbo_size = size * pages;
5411 if (jumbo_size > BNX2_MAX_TOTAL_RX_PG_DESC_CNT)
5412 jumbo_size = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;
5413
5414 bp->rx_pg_ring_size = jumbo_size;
5415 bp->rx_max_pg_ring = bnx2_find_max_ring(jumbo_size,
5416 BNX2_MAX_RX_PG_RINGS);
5417 bp->rx_max_pg_ring_idx =
5418 (bp->rx_max_pg_ring * BNX2_RX_DESC_CNT) - 1;
5419 rx_size = BNX2_RX_COPY_THRESH + BNX2_RX_OFFSET;
5420 bp->rx_copy_thresh = 0;
5421 }
5422
5423 bp->rx_buf_use_size = rx_size;
5424 /* hw alignment + build_skb() overhead*/
5425 bp->rx_buf_size = SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) +
5426 NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
5427 bp->rx_jumbo_thresh = rx_size - BNX2_RX_OFFSET;
5428 bp->rx_ring_size = size;
5429 bp->rx_max_ring = bnx2_find_max_ring(size, BNX2_MAX_RX_RINGS);
5430 bp->rx_max_ring_idx = (bp->rx_max_ring * BNX2_RX_DESC_CNT) - 1;
5431 }
5432
5433 static void
5434 bnx2_free_tx_skbs(struct bnx2 *bp)
5435 {
5436 int i;
5437
5438 for (i = 0; i < bp->num_tx_rings; i++) {
5439 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
5440 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
5441 int j;
5442
5443 if (txr->tx_buf_ring == NULL)
5444 continue;
5445
5446 for (j = 0; j < BNX2_TX_DESC_CNT; ) {
5447 struct bnx2_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
5448 struct sk_buff *skb = tx_buf->skb;
5449 int k, last;
5450
5451 if (skb == NULL) {
5452 j = BNX2_NEXT_TX_BD(j);
5453 continue;
5454 }
5455
5456 dma_unmap_single(&bp->pdev->dev,
5457 dma_unmap_addr(tx_buf, mapping),
5458 skb_headlen(skb),
5459 PCI_DMA_TODEVICE);
5460
5461 tx_buf->skb = NULL;
5462
5463 last = tx_buf->nr_frags;
5464 j = BNX2_NEXT_TX_BD(j);
5465 for (k = 0; k < last; k++, j = BNX2_NEXT_TX_BD(j)) {
5466 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(j)];
5467 dma_unmap_page(&bp->pdev->dev,
5468 dma_unmap_addr(tx_buf, mapping),
5469 skb_frag_size(&skb_shinfo(skb)->frags[k]),
5470 PCI_DMA_TODEVICE);
5471 }
5472 dev_kfree_skb(skb);
5473 }
5474 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
5475 }
5476 }
5477
5478 static void
5479 bnx2_free_rx_skbs(struct bnx2 *bp)
5480 {
5481 int i;
5482
5483 for (i = 0; i < bp->num_rx_rings; i++) {
5484 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
5485 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
5486 int j;
5487
5488 if (rxr->rx_buf_ring == NULL)
5489 return;
5490
5491 for (j = 0; j < bp->rx_max_ring_idx; j++) {
5492 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[j];
5493 u8 *data = rx_buf->data;
5494
5495 if (data == NULL)
5496 continue;
5497
5498 dma_unmap_single(&bp->pdev->dev,
5499 dma_unmap_addr(rx_buf, mapping),
5500 bp->rx_buf_use_size,
5501 PCI_DMA_FROMDEVICE);
5502
5503 rx_buf->data = NULL;
5504
5505 kfree(data);
5506 }
5507 for (j = 0; j < bp->rx_max_pg_ring_idx; j++)
5508 bnx2_free_rx_page(bp, rxr, j);
5509 }
5510 }
5511
5512 static void
5513 bnx2_free_skbs(struct bnx2 *bp)
5514 {
5515 bnx2_free_tx_skbs(bp);
5516 bnx2_free_rx_skbs(bp);
5517 }
5518
5519 static int
5520 bnx2_reset_nic(struct bnx2 *bp, u32 reset_code)
5521 {
5522 int rc;
5523
5524 rc = bnx2_reset_chip(bp, reset_code);
5525 bnx2_free_skbs(bp);
5526 if (rc)
5527 return rc;
5528
5529 if ((rc = bnx2_init_chip(bp)) != 0)
5530 return rc;
5531
5532 bnx2_init_all_rings(bp);
5533 return 0;
5534 }
5535
5536 static int
5537 bnx2_init_nic(struct bnx2 *bp, int reset_phy)
5538 {
5539 int rc;
5540
5541 if ((rc = bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET)) != 0)
5542 return rc;
5543
5544 spin_lock_bh(&bp->phy_lock);
5545 bnx2_init_phy(bp, reset_phy);
5546 bnx2_set_link(bp);
5547 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
5548 bnx2_remote_phy_event(bp);
5549 spin_unlock_bh(&bp->phy_lock);
5550 return 0;
5551 }
5552
5553 static int
5554 bnx2_shutdown_chip(struct bnx2 *bp)
5555 {
5556 u32 reset_code;
5557
5558 if (bp->flags & BNX2_FLAG_NO_WOL)
5559 reset_code = BNX2_DRV_MSG_CODE_UNLOAD_LNK_DN;
5560 else if (bp->wol)
5561 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
5562 else
5563 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
5564
5565 return bnx2_reset_chip(bp, reset_code);
5566 }
5567
5568 static int
5569 bnx2_test_registers(struct bnx2 *bp)
5570 {
5571 int ret;
5572 int i, is_5709;
5573 static const struct {
5574 u16 offset;
5575 u16 flags;
5576 #define BNX2_FL_NOT_5709 1
5577 u32 rw_mask;
5578 u32 ro_mask;
5579 } reg_tbl[] = {
5580 { 0x006c, 0, 0x00000000, 0x0000003f },
5581 { 0x0090, 0, 0xffffffff, 0x00000000 },
5582 { 0x0094, 0, 0x00000000, 0x00000000 },
5583
5584 { 0x0404, BNX2_FL_NOT_5709, 0x00003f00, 0x00000000 },
5585 { 0x0418, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5586 { 0x041c, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5587 { 0x0420, BNX2_FL_NOT_5709, 0x00000000, 0x80ffffff },
5588 { 0x0424, BNX2_FL_NOT_5709, 0x00000000, 0x00000000 },
5589 { 0x0428, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
5590 { 0x0450, BNX2_FL_NOT_5709, 0x00000000, 0x0000ffff },
5591 { 0x0454, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5592 { 0x0458, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5593
5594 { 0x0808, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5595 { 0x0854, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5596 { 0x0868, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5597 { 0x086c, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5598 { 0x0870, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5599 { 0x0874, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5600
5601 { 0x0c00, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
5602 { 0x0c04, BNX2_FL_NOT_5709, 0x00000000, 0x03ff0001 },
5603 { 0x0c08, BNX2_FL_NOT_5709, 0x0f0ff073, 0x00000000 },
5604
5605 { 0x1000, 0, 0x00000000, 0x00000001 },
5606 { 0x1004, BNX2_FL_NOT_5709, 0x00000000, 0x000f0001 },
5607
5608 { 0x1408, 0, 0x01c00800, 0x00000000 },
5609 { 0x149c, 0, 0x8000ffff, 0x00000000 },
5610 { 0x14a8, 0, 0x00000000, 0x000001ff },
5611 { 0x14ac, 0, 0x0fffffff, 0x10000000 },
5612 { 0x14b0, 0, 0x00000002, 0x00000001 },
5613 { 0x14b8, 0, 0x00000000, 0x00000000 },
5614 { 0x14c0, 0, 0x00000000, 0x00000009 },
5615 { 0x14c4, 0, 0x00003fff, 0x00000000 },
5616 { 0x14cc, 0, 0x00000000, 0x00000001 },
5617 { 0x14d0, 0, 0xffffffff, 0x00000000 },
5618
5619 { 0x1800, 0, 0x00000000, 0x00000001 },
5620 { 0x1804, 0, 0x00000000, 0x00000003 },
5621
5622 { 0x2800, 0, 0x00000000, 0x00000001 },
5623 { 0x2804, 0, 0x00000000, 0x00003f01 },
5624 { 0x2808, 0, 0x0f3f3f03, 0x00000000 },
5625 { 0x2810, 0, 0xffff0000, 0x00000000 },
5626 { 0x2814, 0, 0xffff0000, 0x00000000 },
5627 { 0x2818, 0, 0xffff0000, 0x00000000 },
5628 { 0x281c, 0, 0xffff0000, 0x00000000 },
5629 { 0x2834, 0, 0xffffffff, 0x00000000 },
5630 { 0x2840, 0, 0x00000000, 0xffffffff },
5631 { 0x2844, 0, 0x00000000, 0xffffffff },
5632 { 0x2848, 0, 0xffffffff, 0x00000000 },
5633 { 0x284c, 0, 0xf800f800, 0x07ff07ff },
5634
5635 { 0x2c00, 0, 0x00000000, 0x00000011 },
5636 { 0x2c04, 0, 0x00000000, 0x00030007 },
5637
5638 { 0x3c00, 0, 0x00000000, 0x00000001 },
5639 { 0x3c04, 0, 0x00000000, 0x00070000 },
5640 { 0x3c08, 0, 0x00007f71, 0x07f00000 },
5641 { 0x3c0c, 0, 0x1f3ffffc, 0x00000000 },
5642 { 0x3c10, 0, 0xffffffff, 0x00000000 },
5643 { 0x3c14, 0, 0x00000000, 0xffffffff },
5644 { 0x3c18, 0, 0x00000000, 0xffffffff },
5645 { 0x3c1c, 0, 0xfffff000, 0x00000000 },
5646 { 0x3c20, 0, 0xffffff00, 0x00000000 },
5647
5648 { 0x5004, 0, 0x00000000, 0x0000007f },
5649 { 0x5008, 0, 0x0f0007ff, 0x00000000 },
5650
5651 { 0x5c00, 0, 0x00000000, 0x00000001 },
5652 { 0x5c04, 0, 0x00000000, 0x0003000f },
5653 { 0x5c08, 0, 0x00000003, 0x00000000 },
5654 { 0x5c0c, 0, 0x0000fff8, 0x00000000 },
5655 { 0x5c10, 0, 0x00000000, 0xffffffff },
5656 { 0x5c80, 0, 0x00000000, 0x0f7113f1 },
5657 { 0x5c84, 0, 0x00000000, 0x0000f333 },
5658 { 0x5c88, 0, 0x00000000, 0x00077373 },
5659 { 0x5c8c, 0, 0x00000000, 0x0007f737 },
5660
5661 { 0x6808, 0, 0x0000ff7f, 0x00000000 },
5662 { 0x680c, 0, 0xffffffff, 0x00000000 },
5663 { 0x6810, 0, 0xffffffff, 0x00000000 },
5664 { 0x6814, 0, 0xffffffff, 0x00000000 },
5665 { 0x6818, 0, 0xffffffff, 0x00000000 },
5666 { 0x681c, 0, 0xffffffff, 0x00000000 },
5667 { 0x6820, 0, 0x00ff00ff, 0x00000000 },
5668 { 0x6824, 0, 0x00ff00ff, 0x00000000 },
5669 { 0x6828, 0, 0x00ff00ff, 0x00000000 },
5670 { 0x682c, 0, 0x03ff03ff, 0x00000000 },
5671 { 0x6830, 0, 0x03ff03ff, 0x00000000 },
5672 { 0x6834, 0, 0x03ff03ff, 0x00000000 },
5673 { 0x6838, 0, 0x03ff03ff, 0x00000000 },
5674 { 0x683c, 0, 0x0000ffff, 0x00000000 },
5675 { 0x6840, 0, 0x00000ff0, 0x00000000 },
5676 { 0x6844, 0, 0x00ffff00, 0x00000000 },
5677 { 0x684c, 0, 0xffffffff, 0x00000000 },
5678 { 0x6850, 0, 0x7f7f7f7f, 0x00000000 },
5679 { 0x6854, 0, 0x7f7f7f7f, 0x00000000 },
5680 { 0x6858, 0, 0x7f7f7f7f, 0x00000000 },
5681 { 0x685c, 0, 0x7f7f7f7f, 0x00000000 },
5682 { 0x6908, 0, 0x00000000, 0x0001ff0f },
5683 { 0x690c, 0, 0x00000000, 0x0ffe00f0 },
5684
5685 { 0xffff, 0, 0x00000000, 0x00000000 },
5686 };
5687
5688 ret = 0;
5689 is_5709 = 0;
5690 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5691 is_5709 = 1;
5692
5693 for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
5694 u32 offset, rw_mask, ro_mask, save_val, val;
5695 u16 flags = reg_tbl[i].flags;
5696
5697 if (is_5709 && (flags & BNX2_FL_NOT_5709))
5698 continue;
5699
5700 offset = (u32) reg_tbl[i].offset;
5701 rw_mask = reg_tbl[i].rw_mask;
5702 ro_mask = reg_tbl[i].ro_mask;
5703
5704 save_val = readl(bp->regview + offset);
5705
5706 writel(0, bp->regview + offset);
5707
5708 val = readl(bp->regview + offset);
5709 if ((val & rw_mask) != 0) {
5710 goto reg_test_err;
5711 }
5712
5713 if ((val & ro_mask) != (save_val & ro_mask)) {
5714 goto reg_test_err;
5715 }
5716
5717 writel(0xffffffff, bp->regview + offset);
5718
5719 val = readl(bp->regview + offset);
5720 if ((val & rw_mask) != rw_mask) {
5721 goto reg_test_err;
5722 }
5723
5724 if ((val & ro_mask) != (save_val & ro_mask)) {
5725 goto reg_test_err;
5726 }
5727
5728 writel(save_val, bp->regview + offset);
5729 continue;
5730
5731 reg_test_err:
5732 writel(save_val, bp->regview + offset);
5733 ret = -ENODEV;
5734 break;
5735 }
5736 return ret;
5737 }
5738
5739 static int
5740 bnx2_do_mem_test(struct bnx2 *bp, u32 start, u32 size)
5741 {
5742 static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0x55555555,
5743 0xaaaaaaaa , 0xaa55aa55, 0x55aa55aa };
5744 int i;
5745
5746 for (i = 0; i < sizeof(test_pattern) / 4; i++) {
5747 u32 offset;
5748
5749 for (offset = 0; offset < size; offset += 4) {
5750
5751 bnx2_reg_wr_ind(bp, start + offset, test_pattern[i]);
5752
5753 if (bnx2_reg_rd_ind(bp, start + offset) !=
5754 test_pattern[i]) {
5755 return -ENODEV;
5756 }
5757 }
5758 }
5759 return 0;
5760 }
5761
5762 static int
5763 bnx2_test_memory(struct bnx2 *bp)
5764 {
5765 int ret = 0;
5766 int i;
5767 static struct mem_entry {
5768 u32 offset;
5769 u32 len;
5770 } mem_tbl_5706[] = {
5771 { 0x60000, 0x4000 },
5772 { 0xa0000, 0x3000 },
5773 { 0xe0000, 0x4000 },
5774 { 0x120000, 0x4000 },
5775 { 0x1a0000, 0x4000 },
5776 { 0x160000, 0x4000 },
5777 { 0xffffffff, 0 },
5778 },
5779 mem_tbl_5709[] = {
5780 { 0x60000, 0x4000 },
5781 { 0xa0000, 0x3000 },
5782 { 0xe0000, 0x4000 },
5783 { 0x120000, 0x4000 },
5784 { 0x1a0000, 0x4000 },
5785 { 0xffffffff, 0 },
5786 };
5787 struct mem_entry *mem_tbl;
5788
5789 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5790 mem_tbl = mem_tbl_5709;
5791 else
5792 mem_tbl = mem_tbl_5706;
5793
5794 for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
5795 if ((ret = bnx2_do_mem_test(bp, mem_tbl[i].offset,
5796 mem_tbl[i].len)) != 0) {
5797 return ret;
5798 }
5799 }
5800
5801 return ret;
5802 }
5803
5804 #define BNX2_MAC_LOOPBACK 0
5805 #define BNX2_PHY_LOOPBACK 1
5806
5807 static int
5808 bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
5809 {
5810 unsigned int pkt_size, num_pkts, i;
5811 struct sk_buff *skb;
5812 u8 *data;
5813 unsigned char *packet;
5814 u16 rx_start_idx, rx_idx;
5815 dma_addr_t map;
5816 struct bnx2_tx_bd *txbd;
5817 struct bnx2_sw_bd *rx_buf;
5818 struct l2_fhdr *rx_hdr;
5819 int ret = -ENODEV;
5820 struct bnx2_napi *bnapi = &bp->bnx2_napi[0], *tx_napi;
5821 struct bnx2_tx_ring_info *txr;
5822 struct bnx2_rx_ring_info *rxr;
5823
5824 tx_napi = bnapi;
5825
5826 txr = &tx_napi->tx_ring;
5827 rxr = &bnapi->rx_ring;
5828 if (loopback_mode == BNX2_MAC_LOOPBACK) {
5829 bp->loopback = MAC_LOOPBACK;
5830 bnx2_set_mac_loopback(bp);
5831 }
5832 else if (loopback_mode == BNX2_PHY_LOOPBACK) {
5833 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
5834 return 0;
5835
5836 bp->loopback = PHY_LOOPBACK;
5837 bnx2_set_phy_loopback(bp);
5838 }
5839 else
5840 return -EINVAL;
5841
5842 pkt_size = min(bp->dev->mtu + ETH_HLEN, bp->rx_jumbo_thresh - 4);
5843 skb = netdev_alloc_skb(bp->dev, pkt_size);
5844 if (!skb)
5845 return -ENOMEM;
5846 packet = skb_put(skb, pkt_size);
5847 memcpy(packet, bp->dev->dev_addr, ETH_ALEN);
5848 memset(packet + ETH_ALEN, 0x0, 8);
5849 for (i = 14; i < pkt_size; i++)
5850 packet[i] = (unsigned char) (i & 0xff);
5851
5852 map = dma_map_single(&bp->pdev->dev, skb->data, pkt_size,
5853 PCI_DMA_TODEVICE);
5854 if (dma_mapping_error(&bp->pdev->dev, map)) {
5855 dev_kfree_skb(skb);
5856 return -EIO;
5857 }
5858
5859 BNX2_WR(bp, BNX2_HC_COMMAND,
5860 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
5861
5862 BNX2_RD(bp, BNX2_HC_COMMAND);
5863
5864 udelay(5);
5865 rx_start_idx = bnx2_get_hw_rx_cons(bnapi);
5866
5867 num_pkts = 0;
5868
5869 txbd = &txr->tx_desc_ring[BNX2_TX_RING_IDX(txr->tx_prod)];
5870
5871 txbd->tx_bd_haddr_hi = (u64) map >> 32;
5872 txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;
5873 txbd->tx_bd_mss_nbytes = pkt_size;
5874 txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;
5875
5876 num_pkts++;
5877 txr->tx_prod = BNX2_NEXT_TX_BD(txr->tx_prod);
5878 txr->tx_prod_bseq += pkt_size;
5879
5880 BNX2_WR16(bp, txr->tx_bidx_addr, txr->tx_prod);
5881 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
5882
5883 udelay(100);
5884
5885 BNX2_WR(bp, BNX2_HC_COMMAND,
5886 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
5887
5888 BNX2_RD(bp, BNX2_HC_COMMAND);
5889
5890 udelay(5);
5891
5892 dma_unmap_single(&bp->pdev->dev, map, pkt_size, PCI_DMA_TODEVICE);
5893 dev_kfree_skb(skb);
5894
5895 if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)
5896 goto loopback_test_done;
5897
5898 rx_idx = bnx2_get_hw_rx_cons(bnapi);
5899 if (rx_idx != rx_start_idx + num_pkts) {
5900 goto loopback_test_done;
5901 }
5902
5903 rx_buf = &rxr->rx_buf_ring[rx_start_idx];
5904 data = rx_buf->data;
5905
5906 rx_hdr = get_l2_fhdr(data);
5907 data = (u8 *)rx_hdr + BNX2_RX_OFFSET;
5908
5909 dma_sync_single_for_cpu(&bp->pdev->dev,
5910 dma_unmap_addr(rx_buf, mapping),
5911 bp->rx_buf_use_size, PCI_DMA_FROMDEVICE);
5912
5913 if (rx_hdr->l2_fhdr_status &
5914 (L2_FHDR_ERRORS_BAD_CRC |
5915 L2_FHDR_ERRORS_PHY_DECODE |
5916 L2_FHDR_ERRORS_ALIGNMENT |
5917 L2_FHDR_ERRORS_TOO_SHORT |
5918 L2_FHDR_ERRORS_GIANT_FRAME)) {
5919
5920 goto loopback_test_done;
5921 }
5922
5923 if ((rx_hdr->l2_fhdr_pkt_len - 4) != pkt_size) {
5924 goto loopback_test_done;
5925 }
5926
5927 for (i = 14; i < pkt_size; i++) {
5928 if (*(data + i) != (unsigned char) (i & 0xff)) {
5929 goto loopback_test_done;
5930 }
5931 }
5932
5933 ret = 0;
5934
5935 loopback_test_done:
5936 bp->loopback = 0;
5937 return ret;
5938 }
5939
5940 #define BNX2_MAC_LOOPBACK_FAILED 1
5941 #define BNX2_PHY_LOOPBACK_FAILED 2
5942 #define BNX2_LOOPBACK_FAILED (BNX2_MAC_LOOPBACK_FAILED | \
5943 BNX2_PHY_LOOPBACK_FAILED)
5944
5945 static int
5946 bnx2_test_loopback(struct bnx2 *bp)
5947 {
5948 int rc = 0;
5949
5950 if (!netif_running(bp->dev))
5951 return BNX2_LOOPBACK_FAILED;
5952
5953 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
5954 spin_lock_bh(&bp->phy_lock);
5955 bnx2_init_phy(bp, 1);
5956 spin_unlock_bh(&bp->phy_lock);
5957 if (bnx2_run_loopback(bp, BNX2_MAC_LOOPBACK))
5958 rc |= BNX2_MAC_LOOPBACK_FAILED;
5959 if (bnx2_run_loopback(bp, BNX2_PHY_LOOPBACK))
5960 rc |= BNX2_PHY_LOOPBACK_FAILED;
5961 return rc;
5962 }
5963
5964 #define NVRAM_SIZE 0x200
5965 #define CRC32_RESIDUAL 0xdebb20e3
5966
5967 static int
5968 bnx2_test_nvram(struct bnx2 *bp)
5969 {
5970 __be32 buf[NVRAM_SIZE / 4];
5971 u8 *data = (u8 *) buf;
5972 int rc = 0;
5973 u32 magic, csum;
5974
5975 if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0)
5976 goto test_nvram_done;
5977
5978 magic = be32_to_cpu(buf[0]);
5979 if (magic != 0x669955aa) {
5980 rc = -ENODEV;
5981 goto test_nvram_done;
5982 }
5983
5984 if ((rc = bnx2_nvram_read(bp, 0x100, data, NVRAM_SIZE)) != 0)
5985 goto test_nvram_done;
5986
5987 csum = ether_crc_le(0x100, data);
5988 if (csum != CRC32_RESIDUAL) {
5989 rc = -ENODEV;
5990 goto test_nvram_done;
5991 }
5992
5993 csum = ether_crc_le(0x100, data + 0x100);
5994 if (csum != CRC32_RESIDUAL) {
5995 rc = -ENODEV;
5996 }
5997
5998 test_nvram_done:
5999 return rc;
6000 }
6001
6002 static int
6003 bnx2_test_link(struct bnx2 *bp)
6004 {
6005 u32 bmsr;
6006
6007 if (!netif_running(bp->dev))
6008 return -ENODEV;
6009
6010 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
6011 if (bp->link_up)
6012 return 0;
6013 return -ENODEV;
6014 }
6015 spin_lock_bh(&bp->phy_lock);
6016 bnx2_enable_bmsr1(bp);
6017 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
6018 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
6019 bnx2_disable_bmsr1(bp);
6020 spin_unlock_bh(&bp->phy_lock);
6021
6022 if (bmsr & BMSR_LSTATUS) {
6023 return 0;
6024 }
6025 return -ENODEV;
6026 }
6027
6028 static int
6029 bnx2_test_intr(struct bnx2 *bp)
6030 {
6031 int i;
6032 u16 status_idx;
6033
6034 if (!netif_running(bp->dev))
6035 return -ENODEV;
6036
6037 status_idx = BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff;
6038
6039 /* This register is not touched during run-time. */
6040 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);
6041 BNX2_RD(bp, BNX2_HC_COMMAND);
6042
6043 for (i = 0; i < 10; i++) {
6044 if ((BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff) !=
6045 status_idx) {
6046
6047 break;
6048 }
6049
6050 msleep_interruptible(10);
6051 }
6052 if (i < 10)
6053 return 0;
6054
6055 return -ENODEV;
6056 }
6057
6058 /* Determining link for parallel detection. */
6059 static int
6060 bnx2_5706_serdes_has_link(struct bnx2 *bp)
6061 {
6062 u32 mode_ctl, an_dbg, exp;
6063
6064 if (bp->phy_flags & BNX2_PHY_FLAG_NO_PARALLEL)
6065 return 0;
6066
6067 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_MODE_CTL);
6068 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &mode_ctl);
6069
6070 if (!(mode_ctl & MISC_SHDW_MODE_CTL_SIG_DET))
6071 return 0;
6072
6073 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
6074 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
6075 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
6076
6077 if (an_dbg & (MISC_SHDW_AN_DBG_NOSYNC | MISC_SHDW_AN_DBG_RUDI_INVALID))
6078 return 0;
6079
6080 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1);
6081 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
6082 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
6083
6084 if (exp & MII_EXPAND_REG1_RUDI_C) /* receiving CONFIG */
6085 return 0;
6086
6087 return 1;
6088 }
6089
6090 static void
6091 bnx2_5706_serdes_timer(struct bnx2 *bp)
6092 {
6093 int check_link = 1;
6094
6095 spin_lock(&bp->phy_lock);
6096 if (bp->serdes_an_pending) {
6097 bp->serdes_an_pending--;
6098 check_link = 0;
6099 } else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
6100 u32 bmcr;
6101
6102 bp->current_interval = BNX2_TIMER_INTERVAL;
6103
6104 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6105
6106 if (bmcr & BMCR_ANENABLE) {
6107 if (bnx2_5706_serdes_has_link(bp)) {
6108 bmcr &= ~BMCR_ANENABLE;
6109 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
6110 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
6111 bp->phy_flags |= BNX2_PHY_FLAG_PARALLEL_DETECT;
6112 }
6113 }
6114 }
6115 else if ((bp->link_up) && (bp->autoneg & AUTONEG_SPEED) &&
6116 (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)) {
6117 u32 phy2;
6118
6119 bnx2_write_phy(bp, 0x17, 0x0f01);
6120 bnx2_read_phy(bp, 0x15, &phy2);
6121 if (phy2 & 0x20) {
6122 u32 bmcr;
6123
6124 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6125 bmcr |= BMCR_ANENABLE;
6126 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
6127
6128 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
6129 }
6130 } else
6131 bp->current_interval = BNX2_TIMER_INTERVAL;
6132
6133 if (check_link) {
6134 u32 val;
6135
6136 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
6137 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
6138 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
6139
6140 if (bp->link_up && (val & MISC_SHDW_AN_DBG_NOSYNC)) {
6141 if (!(bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN)) {
6142 bnx2_5706s_force_link_dn(bp, 1);
6143 bp->phy_flags |= BNX2_PHY_FLAG_FORCED_DOWN;
6144 } else
6145 bnx2_set_link(bp);
6146 } else if (!bp->link_up && !(val & MISC_SHDW_AN_DBG_NOSYNC))
6147 bnx2_set_link(bp);
6148 }
6149 spin_unlock(&bp->phy_lock);
6150 }
6151
6152 static void
6153 bnx2_5708_serdes_timer(struct bnx2 *bp)
6154 {
6155 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
6156 return;
6157
6158 if ((bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) == 0) {
6159 bp->serdes_an_pending = 0;
6160 return;
6161 }
6162
6163 spin_lock(&bp->phy_lock);
6164 if (bp->serdes_an_pending)
6165 bp->serdes_an_pending--;
6166 else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
6167 u32 bmcr;
6168
6169 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6170 if (bmcr & BMCR_ANENABLE) {
6171 bnx2_enable_forced_2g5(bp);
6172 bp->current_interval = BNX2_SERDES_FORCED_TIMEOUT;
6173 } else {
6174 bnx2_disable_forced_2g5(bp);
6175 bp->serdes_an_pending = 2;
6176 bp->current_interval = BNX2_TIMER_INTERVAL;
6177 }
6178
6179 } else
6180 bp->current_interval = BNX2_TIMER_INTERVAL;
6181
6182 spin_unlock(&bp->phy_lock);
6183 }
6184
6185 static void
6186 bnx2_timer(struct timer_list *t)
6187 {
6188 struct bnx2 *bp = from_timer(bp, t, timer);
6189
6190 if (!netif_running(bp->dev))
6191 return;
6192
6193 if (atomic_read(&bp->intr_sem) != 0)
6194 goto bnx2_restart_timer;
6195
6196 if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==
6197 BNX2_FLAG_USING_MSI)
6198 bnx2_chk_missed_msi(bp);
6199
6200 bnx2_send_heart_beat(bp);
6201
6202 bp->stats_blk->stat_FwRxDrop =
6203 bnx2_reg_rd_ind(bp, BNX2_FW_RX_DROP_COUNT);
6204
6205 /* workaround occasional corrupted counters */
6206 if ((bp->flags & BNX2_FLAG_BROKEN_STATS) && bp->stats_ticks)
6207 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd |
6208 BNX2_HC_COMMAND_STATS_NOW);
6209
6210 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
6211 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
6212 bnx2_5706_serdes_timer(bp);
6213 else
6214 bnx2_5708_serdes_timer(bp);
6215 }
6216
6217 bnx2_restart_timer:
6218 mod_timer(&bp->timer, jiffies + bp->current_interval);
6219 }
6220
6221 static int
6222 bnx2_request_irq(struct bnx2 *bp)
6223 {
6224 unsigned long flags;
6225 struct bnx2_irq *irq;
6226 int rc = 0, i;
6227
6228 if (bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)
6229 flags = 0;
6230 else
6231 flags = IRQF_SHARED;
6232
6233 for (i = 0; i < bp->irq_nvecs; i++) {
6234 irq = &bp->irq_tbl[i];
6235 rc = request_irq(irq->vector, irq->handler, flags, irq->name,
6236 &bp->bnx2_napi[i]);
6237 if (rc)
6238 break;
6239 irq->requested = 1;
6240 }
6241 return rc;
6242 }
6243
6244 static void
6245 __bnx2_free_irq(struct bnx2 *bp)
6246 {
6247 struct bnx2_irq *irq;
6248 int i;
6249
6250 for (i = 0; i < bp->irq_nvecs; i++) {
6251 irq = &bp->irq_tbl[i];
6252 if (irq->requested)
6253 free_irq(irq->vector, &bp->bnx2_napi[i]);
6254 irq->requested = 0;
6255 }
6256 }
6257
6258 static void
6259 bnx2_free_irq(struct bnx2 *bp)
6260 {
6261
6262 __bnx2_free_irq(bp);
6263 if (bp->flags & BNX2_FLAG_USING_MSI)
6264 pci_disable_msi(bp->pdev);
6265 else if (bp->flags & BNX2_FLAG_USING_MSIX)
6266 pci_disable_msix(bp->pdev);
6267
6268 bp->flags &= ~(BNX2_FLAG_USING_MSI_OR_MSIX | BNX2_FLAG_ONE_SHOT_MSI);
6269 }
6270
6271 static void
6272 bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)
6273 {
6274 int i, total_vecs;
6275 struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC];
6276 struct net_device *dev = bp->dev;
6277 const int len = sizeof(bp->irq_tbl[0].name);
6278
6279 bnx2_setup_msix_tbl(bp);
6280 BNX2_WR(bp, BNX2_PCI_MSIX_CONTROL, BNX2_MAX_MSIX_HW_VEC - 1);
6281 BNX2_WR(bp, BNX2_PCI_MSIX_TBL_OFF_BIR, BNX2_PCI_GRC_WINDOW2_BASE);
6282 BNX2_WR(bp, BNX2_PCI_MSIX_PBA_OFF_BIT, BNX2_PCI_GRC_WINDOW3_BASE);
6283
6284 /* Need to flush the previous three writes to ensure MSI-X
6285 * is setup properly */
6286 BNX2_RD(bp, BNX2_PCI_MSIX_CONTROL);
6287
6288 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
6289 msix_ent[i].entry = i;
6290 msix_ent[i].vector = 0;
6291 }
6292
6293 total_vecs = msix_vecs;
6294 #ifdef BCM_CNIC
6295 total_vecs++;
6296 #endif
6297 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent,
6298 BNX2_MIN_MSIX_VEC, total_vecs);
6299 if (total_vecs < 0)
6300 return;
6301
6302 msix_vecs = total_vecs;
6303 #ifdef BCM_CNIC
6304 msix_vecs--;
6305 #endif
6306 bp->irq_nvecs = msix_vecs;
6307 bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;
6308 for (i = 0; i < total_vecs; i++) {
6309 bp->irq_tbl[i].vector = msix_ent[i].vector;
6310 snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);
6311 bp->irq_tbl[i].handler = bnx2_msi_1shot;
6312 }
6313 }
6314
6315 static int
6316 bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi)
6317 {
6318 int cpus = netif_get_num_default_rss_queues();
6319 int msix_vecs;
6320
6321 if (!bp->num_req_rx_rings)
6322 msix_vecs = max(cpus + 1, bp->num_req_tx_rings);
6323 else if (!bp->num_req_tx_rings)
6324 msix_vecs = max(cpus, bp->num_req_rx_rings);
6325 else
6326 msix_vecs = max(bp->num_req_rx_rings, bp->num_req_tx_rings);
6327
6328 msix_vecs = min(msix_vecs, RX_MAX_RINGS);
6329
6330 bp->irq_tbl[0].handler = bnx2_interrupt;
6331 strcpy(bp->irq_tbl[0].name, bp->dev->name);
6332 bp->irq_nvecs = 1;
6333 bp->irq_tbl[0].vector = bp->pdev->irq;
6334
6335 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi)
6336 bnx2_enable_msix(bp, msix_vecs);
6337
6338 if ((bp->flags & BNX2_FLAG_MSI_CAP) && !dis_msi &&
6339 !(bp->flags & BNX2_FLAG_USING_MSIX)) {
6340 if (pci_enable_msi(bp->pdev) == 0) {
6341 bp->flags |= BNX2_FLAG_USING_MSI;
6342 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
6343 bp->flags |= BNX2_FLAG_ONE_SHOT_MSI;
6344 bp->irq_tbl[0].handler = bnx2_msi_1shot;
6345 } else
6346 bp->irq_tbl[0].handler = bnx2_msi;
6347
6348 bp->irq_tbl[0].vector = bp->pdev->irq;
6349 }
6350 }
6351
6352 if (!bp->num_req_tx_rings)
6353 bp->num_tx_rings = rounddown_pow_of_two(bp->irq_nvecs);
6354 else
6355 bp->num_tx_rings = min(bp->irq_nvecs, bp->num_req_tx_rings);
6356
6357 if (!bp->num_req_rx_rings)
6358 bp->num_rx_rings = bp->irq_nvecs;
6359 else
6360 bp->num_rx_rings = min(bp->irq_nvecs, bp->num_req_rx_rings);
6361
6362 netif_set_real_num_tx_queues(bp->dev, bp->num_tx_rings);
6363
6364 return netif_set_real_num_rx_queues(bp->dev, bp->num_rx_rings);
6365 }
6366
6367 /* Called with rtnl_lock */
6368 static int
6369 bnx2_open(struct net_device *dev)
6370 {
6371 struct bnx2 *bp = netdev_priv(dev);
6372 int rc;
6373
6374 rc = bnx2_request_firmware(bp);
6375 if (rc < 0)
6376 goto out;
6377
6378 netif_carrier_off(dev);
6379
6380 bnx2_disable_int(bp);
6381
6382 rc = bnx2_setup_int_mode(bp, disable_msi);
6383 if (rc)
6384 goto open_err;
6385 bnx2_init_napi(bp);
6386 bnx2_napi_enable(bp);
6387 rc = bnx2_alloc_mem(bp);
6388 if (rc)
6389 goto open_err;
6390
6391 rc = bnx2_request_irq(bp);
6392 if (rc)
6393 goto open_err;
6394
6395 rc = bnx2_init_nic(bp, 1);
6396 if (rc)
6397 goto open_err;
6398
6399 mod_timer(&bp->timer, jiffies + bp->current_interval);
6400
6401 atomic_set(&bp->intr_sem, 0);
6402
6403 memset(bp->temp_stats_blk, 0, sizeof(struct statistics_block));
6404
6405 bnx2_enable_int(bp);
6406
6407 if (bp->flags & BNX2_FLAG_USING_MSI) {
6408 /* Test MSI to make sure it is working
6409 * If MSI test fails, go back to INTx mode
6410 */
6411 if (bnx2_test_intr(bp) != 0) {
6412 netdev_warn(bp->dev, "No interrupt was generated using MSI, switching to INTx mode. Please report this failure to the PCI maintainer and include system chipset information.\n");
6413
6414 bnx2_disable_int(bp);
6415 bnx2_free_irq(bp);
6416
6417 bnx2_setup_int_mode(bp, 1);
6418
6419 rc = bnx2_init_nic(bp, 0);
6420
6421 if (!rc)
6422 rc = bnx2_request_irq(bp);
6423
6424 if (rc) {
6425 del_timer_sync(&bp->timer);
6426 goto open_err;
6427 }
6428 bnx2_enable_int(bp);
6429 }
6430 }
6431 if (bp->flags & BNX2_FLAG_USING_MSI)
6432 netdev_info(dev, "using MSI\n");
6433 else if (bp->flags & BNX2_FLAG_USING_MSIX)
6434 netdev_info(dev, "using MSIX\n");
6435
6436 netif_tx_start_all_queues(dev);
6437 out:
6438 return rc;
6439
6440 open_err:
6441 bnx2_napi_disable(bp);
6442 bnx2_free_skbs(bp);
6443 bnx2_free_irq(bp);
6444 bnx2_free_mem(bp);
6445 bnx2_del_napi(bp);
6446 bnx2_release_firmware(bp);
6447 goto out;
6448 }
6449
6450 static void
6451 bnx2_reset_task(struct work_struct *work)
6452 {
6453 struct bnx2 *bp = container_of(work, struct bnx2, reset_task);
6454 int rc;
6455 u16 pcicmd;
6456
6457 rtnl_lock();
6458 if (!netif_running(bp->dev)) {
6459 rtnl_unlock();
6460 return;
6461 }
6462
6463 bnx2_netif_stop(bp, true);
6464
6465 pci_read_config_word(bp->pdev, PCI_COMMAND, &pcicmd);
6466 if (!(pcicmd & PCI_COMMAND_MEMORY)) {
6467 /* in case PCI block has reset */
6468 pci_restore_state(bp->pdev);
6469 pci_save_state(bp->pdev);
6470 }
6471 rc = bnx2_init_nic(bp, 1);
6472 if (rc) {
6473 netdev_err(bp->dev, "failed to reset NIC, closing\n");
6474 bnx2_napi_enable(bp);
6475 dev_close(bp->dev);
6476 rtnl_unlock();
6477 return;
6478 }
6479
6480 atomic_set(&bp->intr_sem, 1);
6481 bnx2_netif_start(bp, true);
6482 rtnl_unlock();
6483 }
6484
6485 #define BNX2_FTQ_ENTRY(ftq) { __stringify(ftq##FTQ_CTL), BNX2_##ftq##FTQ_CTL }
6486
6487 static void
6488 bnx2_dump_ftq(struct bnx2 *bp)
6489 {
6490 int i;
6491 u32 reg, bdidx, cid, valid;
6492 struct net_device *dev = bp->dev;
6493 static const struct ftq_reg {
6494 char *name;
6495 u32 off;
6496 } ftq_arr[] = {
6497 BNX2_FTQ_ENTRY(RV2P_P),
6498 BNX2_FTQ_ENTRY(RV2P_T),
6499 BNX2_FTQ_ENTRY(RV2P_M),
6500 BNX2_FTQ_ENTRY(TBDR_),
6501 BNX2_FTQ_ENTRY(TDMA_),
6502 BNX2_FTQ_ENTRY(TXP_),
6503 BNX2_FTQ_ENTRY(TXP_),
6504 BNX2_FTQ_ENTRY(TPAT_),
6505 BNX2_FTQ_ENTRY(RXP_C),
6506 BNX2_FTQ_ENTRY(RXP_),
6507 BNX2_FTQ_ENTRY(COM_COMXQ_),
6508 BNX2_FTQ_ENTRY(COM_COMTQ_),
6509 BNX2_FTQ_ENTRY(COM_COMQ_),
6510 BNX2_FTQ_ENTRY(CP_CPQ_),
6511 };
6512
6513 netdev_err(dev, "<--- start FTQ dump --->\n");
6514 for (i = 0; i < ARRAY_SIZE(ftq_arr); i++)
6515 netdev_err(dev, "%s %08x\n", ftq_arr[i].name,
6516 bnx2_reg_rd_ind(bp, ftq_arr[i].off));
6517
6518 netdev_err(dev, "CPU states:\n");
6519 for (reg = BNX2_TXP_CPU_MODE; reg <= BNX2_CP_CPU_MODE; reg += 0x40000)
6520 netdev_err(dev, "%06x mode %x state %x evt_mask %x pc %x pc %x instr %x\n",
6521 reg, bnx2_reg_rd_ind(bp, reg),
6522 bnx2_reg_rd_ind(bp, reg + 4),
6523 bnx2_reg_rd_ind(bp, reg + 8),
6524 bnx2_reg_rd_ind(bp, reg + 0x1c),
6525 bnx2_reg_rd_ind(bp, reg + 0x1c),
6526 bnx2_reg_rd_ind(bp, reg + 0x20));
6527
6528 netdev_err(dev, "<--- end FTQ dump --->\n");
6529 netdev_err(dev, "<--- start TBDC dump --->\n");
6530 netdev_err(dev, "TBDC free cnt: %ld\n",
6531 BNX2_RD(bp, BNX2_TBDC_STATUS) & BNX2_TBDC_STATUS_FREE_CNT);
6532 netdev_err(dev, "LINE CID BIDX CMD VALIDS\n");
6533 for (i = 0; i < 0x20; i++) {
6534 int j = 0;
6535
6536 BNX2_WR(bp, BNX2_TBDC_BD_ADDR, i);
6537 BNX2_WR(bp, BNX2_TBDC_CAM_OPCODE,
6538 BNX2_TBDC_CAM_OPCODE_OPCODE_CAM_READ);
6539 BNX2_WR(bp, BNX2_TBDC_COMMAND, BNX2_TBDC_COMMAND_CMD_REG_ARB);
6540 while ((BNX2_RD(bp, BNX2_TBDC_COMMAND) &
6541 BNX2_TBDC_COMMAND_CMD_REG_ARB) && j < 100)
6542 j++;
6543
6544 cid = BNX2_RD(bp, BNX2_TBDC_CID);
6545 bdidx = BNX2_RD(bp, BNX2_TBDC_BIDX);
6546 valid = BNX2_RD(bp, BNX2_TBDC_CAM_OPCODE);
6547 netdev_err(dev, "%02x %06x %04lx %02x [%x]\n",
6548 i, cid, bdidx & BNX2_TBDC_BDIDX_BDIDX,
6549 bdidx >> 24, (valid >> 8) & 0x0ff);
6550 }
6551 netdev_err(dev, "<--- end TBDC dump --->\n");
6552 }
6553
6554 static void
6555 bnx2_dump_state(struct bnx2 *bp)
6556 {
6557 struct net_device *dev = bp->dev;
6558 u32 val1, val2;
6559
6560 pci_read_config_dword(bp->pdev, PCI_COMMAND, &val1);
6561 netdev_err(dev, "DEBUG: intr_sem[%x] PCI_CMD[%08x]\n",
6562 atomic_read(&bp->intr_sem), val1);
6563 pci_read_config_dword(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &val1);
6564 pci_read_config_dword(bp->pdev, BNX2_PCICFG_MISC_CONFIG, &val2);
6565 netdev_err(dev, "DEBUG: PCI_PM[%08x] PCI_MISC_CFG[%08x]\n", val1, val2);
6566 netdev_err(dev, "DEBUG: EMAC_TX_STATUS[%08x] EMAC_RX_STATUS[%08x]\n",
6567 BNX2_RD(bp, BNX2_EMAC_TX_STATUS),
6568 BNX2_RD(bp, BNX2_EMAC_RX_STATUS));
6569 netdev_err(dev, "DEBUG: RPM_MGMT_PKT_CTRL[%08x]\n",
6570 BNX2_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));
6571 netdev_err(dev, "DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",
6572 BNX2_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));
6573 if (bp->flags & BNX2_FLAG_USING_MSIX)
6574 netdev_err(dev, "DEBUG: PBA[%08x]\n",
6575 BNX2_RD(bp, BNX2_PCI_GRC_WINDOW3_BASE));
6576 }
6577
6578 static void
6579 bnx2_tx_timeout(struct net_device *dev)
6580 {
6581 struct bnx2 *bp = netdev_priv(dev);
6582
6583 bnx2_dump_ftq(bp);
6584 bnx2_dump_state(bp);
6585 bnx2_dump_mcp_state(bp);
6586
6587 /* This allows the netif to be shutdown gracefully before resetting */
6588 schedule_work(&bp->reset_task);
6589 }
6590
6591 /* Called with netif_tx_lock.
6592 * bnx2_tx_int() runs without netif_tx_lock unless it needs to call
6593 * netif_wake_queue().
6594 */
6595 static netdev_tx_t
6596 bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
6597 {
6598 struct bnx2 *bp = netdev_priv(dev);
6599 dma_addr_t mapping;
6600 struct bnx2_tx_bd *txbd;
6601 struct bnx2_sw_tx_bd *tx_buf;
6602 u32 len, vlan_tag_flags, last_frag, mss;
6603 u16 prod, ring_prod;
6604 int i;
6605 struct bnx2_napi *bnapi;
6606 struct bnx2_tx_ring_info *txr;
6607 struct netdev_queue *txq;
6608
6609 /* Determine which tx ring we will be placed on */
6610 i = skb_get_queue_mapping(skb);
6611 bnapi = &bp->bnx2_napi[i];
6612 txr = &bnapi->tx_ring;
6613 txq = netdev_get_tx_queue(dev, i);
6614
6615 if (unlikely(bnx2_tx_avail(bp, txr) <
6616 (skb_shinfo(skb)->nr_frags + 1))) {
6617 netif_tx_stop_queue(txq);
6618 netdev_err(dev, "BUG! Tx ring full when queue awake!\n");
6619
6620 return NETDEV_TX_BUSY;
6621 }
6622 len = skb_headlen(skb);
6623 prod = txr->tx_prod;
6624 ring_prod = BNX2_TX_RING_IDX(prod);
6625
6626 vlan_tag_flags = 0;
6627 if (skb->ip_summed == CHECKSUM_PARTIAL) {
6628 vlan_tag_flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;
6629 }
6630
6631 if (skb_vlan_tag_present(skb)) {
6632 vlan_tag_flags |=
6633 (TX_BD_FLAGS_VLAN_TAG | (skb_vlan_tag_get(skb) << 16));
6634 }
6635
6636 if ((mss = skb_shinfo(skb)->gso_size)) {
6637 u32 tcp_opt_len;
6638 struct iphdr *iph;
6639
6640 vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
6641
6642 tcp_opt_len = tcp_optlen(skb);
6643
6644 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
6645 u32 tcp_off = skb_transport_offset(skb) -
6646 sizeof(struct ipv6hdr) - ETH_HLEN;
6647
6648 vlan_tag_flags |= ((tcp_opt_len >> 2) << 8) |
6649 TX_BD_FLAGS_SW_FLAGS;
6650 if (likely(tcp_off == 0))
6651 vlan_tag_flags &= ~TX_BD_FLAGS_TCP6_OFF0_MSK;
6652 else {
6653 tcp_off >>= 3;
6654 vlan_tag_flags |= ((tcp_off & 0x3) <<
6655 TX_BD_FLAGS_TCP6_OFF0_SHL) |
6656 ((tcp_off & 0x10) <<
6657 TX_BD_FLAGS_TCP6_OFF4_SHL);
6658 mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;
6659 }
6660 } else {
6661 iph = ip_hdr(skb);
6662 if (tcp_opt_len || (iph->ihl > 5)) {
6663 vlan_tag_flags |= ((iph->ihl - 5) +
6664 (tcp_opt_len >> 2)) << 8;
6665 }
6666 }
6667 } else
6668 mss = 0;
6669
6670 mapping = dma_map_single(&bp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
6671 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
6672 dev_kfree_skb_any(skb);
6673 return NETDEV_TX_OK;
6674 }
6675
6676 tx_buf = &txr->tx_buf_ring[ring_prod];
6677 tx_buf->skb = skb;
6678 dma_unmap_addr_set(tx_buf, mapping, mapping);
6679
6680 txbd = &txr->tx_desc_ring[ring_prod];
6681
6682 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
6683 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
6684 txbd->tx_bd_mss_nbytes = len | (mss << 16);
6685 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags | TX_BD_FLAGS_START;
6686
6687 last_frag = skb_shinfo(skb)->nr_frags;
6688 tx_buf->nr_frags = last_frag;
6689 tx_buf->is_gso = skb_is_gso(skb);
6690
6691 for (i = 0; i < last_frag; i++) {
6692 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6693
6694 prod = BNX2_NEXT_TX_BD(prod);
6695 ring_prod = BNX2_TX_RING_IDX(prod);
6696 txbd = &txr->tx_desc_ring[ring_prod];
6697
6698 len = skb_frag_size(frag);
6699 mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, len,
6700 DMA_TO_DEVICE);
6701 if (dma_mapping_error(&bp->pdev->dev, mapping))
6702 goto dma_error;
6703 dma_unmap_addr_set(&txr->tx_buf_ring[ring_prod], mapping,
6704 mapping);
6705
6706 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
6707 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
6708 txbd->tx_bd_mss_nbytes = len | (mss << 16);
6709 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags;
6710
6711 }
6712 txbd->tx_bd_vlan_tag_flags |= TX_BD_FLAGS_END;
6713
6714 /* Sync BD data before updating TX mailbox */
6715 wmb();
6716
6717 netdev_tx_sent_queue(txq, skb->len);
6718
6719 prod = BNX2_NEXT_TX_BD(prod);
6720 txr->tx_prod_bseq += skb->len;
6721
6722 BNX2_WR16(bp, txr->tx_bidx_addr, prod);
6723 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
6724
6725 mmiowb();
6726
6727 txr->tx_prod = prod;
6728
6729 if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {
6730 netif_tx_stop_queue(txq);
6731
6732 /* netif_tx_stop_queue() must be done before checking
6733 * tx index in bnx2_tx_avail() below, because in
6734 * bnx2_tx_int(), we update tx index before checking for
6735 * netif_tx_queue_stopped().
6736 */
6737 smp_mb();
6738 if (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)
6739 netif_tx_wake_queue(txq);
6740 }
6741
6742 return NETDEV_TX_OK;
6743 dma_error:
6744 /* save value of frag that failed */
6745 last_frag = i;
6746
6747 /* start back at beginning and unmap skb */
6748 prod = txr->tx_prod;
6749 ring_prod = BNX2_TX_RING_IDX(prod);
6750 tx_buf = &txr->tx_buf_ring[ring_prod];
6751 tx_buf->skb = NULL;
6752 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
6753 skb_headlen(skb), PCI_DMA_TODEVICE);
6754
6755 /* unmap remaining mapped pages */
6756 for (i = 0; i < last_frag; i++) {
6757 prod = BNX2_NEXT_TX_BD(prod);
6758 ring_prod = BNX2_TX_RING_IDX(prod);
6759 tx_buf = &txr->tx_buf_ring[ring_prod];
6760 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
6761 skb_frag_size(&skb_shinfo(skb)->frags[i]),
6762 PCI_DMA_TODEVICE);
6763 }
6764
6765 dev_kfree_skb_any(skb);
6766 return NETDEV_TX_OK;
6767 }
6768
6769 /* Called with rtnl_lock */
6770 static int
6771 bnx2_close(struct net_device *dev)
6772 {
6773 struct bnx2 *bp = netdev_priv(dev);
6774
6775 bnx2_disable_int_sync(bp);
6776 bnx2_napi_disable(bp);
6777 netif_tx_disable(dev);
6778 del_timer_sync(&bp->timer);
6779 bnx2_shutdown_chip(bp);
6780 bnx2_free_irq(bp);
6781 bnx2_free_skbs(bp);
6782 bnx2_free_mem(bp);
6783 bnx2_del_napi(bp);
6784 bp->link_up = 0;
6785 netif_carrier_off(bp->dev);
6786 return 0;
6787 }
6788
6789 static void
6790 bnx2_save_stats(struct bnx2 *bp)
6791 {
6792 u32 *hw_stats = (u32 *) bp->stats_blk;
6793 u32 *temp_stats = (u32 *) bp->temp_stats_blk;
6794 int i;
6795
6796 /* The 1st 10 counters are 64-bit counters */
6797 for (i = 0; i < 20; i += 2) {
6798 u32 hi;
6799 u64 lo;
6800
6801 hi = temp_stats[i] + hw_stats[i];
6802 lo = (u64) temp_stats[i + 1] + (u64) hw_stats[i + 1];
6803 if (lo > 0xffffffff)
6804 hi++;
6805 temp_stats[i] = hi;
6806 temp_stats[i + 1] = lo & 0xffffffff;
6807 }
6808
6809 for ( ; i < sizeof(struct statistics_block) / 4; i++)
6810 temp_stats[i] += hw_stats[i];
6811 }
6812
6813 #define GET_64BIT_NET_STATS64(ctr) \
6814 (((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo))
6815
6816 #define GET_64BIT_NET_STATS(ctr) \
6817 GET_64BIT_NET_STATS64(bp->stats_blk->ctr) + \
6818 GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr)
6819
6820 #define GET_32BIT_NET_STATS(ctr) \
6821 (unsigned long) (bp->stats_blk->ctr + \
6822 bp->temp_stats_blk->ctr)
6823
6824 static void
6825 bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
6826 {
6827 struct bnx2 *bp = netdev_priv(dev);
6828
6829 if (bp->stats_blk == NULL)
6830 return;
6831
6832 net_stats->rx_packets =
6833 GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) +
6834 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) +
6835 GET_64BIT_NET_STATS(stat_IfHCInBroadcastPkts);
6836
6837 net_stats->tx_packets =
6838 GET_64BIT_NET_STATS(stat_IfHCOutUcastPkts) +
6839 GET_64BIT_NET_STATS(stat_IfHCOutMulticastPkts) +
6840 GET_64BIT_NET_STATS(stat_IfHCOutBroadcastPkts);
6841
6842 net_stats->rx_bytes =
6843 GET_64BIT_NET_STATS(stat_IfHCInOctets);
6844
6845 net_stats->tx_bytes =
6846 GET_64BIT_NET_STATS(stat_IfHCOutOctets);
6847
6848 net_stats->multicast =
6849 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts);
6850
6851 net_stats->collisions =
6852 GET_32BIT_NET_STATS(stat_EtherStatsCollisions);
6853
6854 net_stats->rx_length_errors =
6855 GET_32BIT_NET_STATS(stat_EtherStatsUndersizePkts) +
6856 GET_32BIT_NET_STATS(stat_EtherStatsOverrsizePkts);
6857
6858 net_stats->rx_over_errors =
6859 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
6860 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards);
6861
6862 net_stats->rx_frame_errors =
6863 GET_32BIT_NET_STATS(stat_Dot3StatsAlignmentErrors);
6864
6865 net_stats->rx_crc_errors =
6866 GET_32BIT_NET_STATS(stat_Dot3StatsFCSErrors);
6867
6868 net_stats->rx_errors = net_stats->rx_length_errors +
6869 net_stats->rx_over_errors + net_stats->rx_frame_errors +
6870 net_stats->rx_crc_errors;
6871
6872 net_stats->tx_aborted_errors =
6873 GET_32BIT_NET_STATS(stat_Dot3StatsExcessiveCollisions) +
6874 GET_32BIT_NET_STATS(stat_Dot3StatsLateCollisions);
6875
6876 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||
6877 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))
6878 net_stats->tx_carrier_errors = 0;
6879 else {
6880 net_stats->tx_carrier_errors =
6881 GET_32BIT_NET_STATS(stat_Dot3StatsCarrierSenseErrors);
6882 }
6883
6884 net_stats->tx_errors =
6885 GET_32BIT_NET_STATS(stat_emac_tx_stat_dot3statsinternalmactransmiterrors) +
6886 net_stats->tx_aborted_errors +
6887 net_stats->tx_carrier_errors;
6888
6889 net_stats->rx_missed_errors =
6890 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
6891 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards) +
6892 GET_32BIT_NET_STATS(stat_FwRxDrop);
6893
6894 }
6895
6896 /* All ethtool functions called with rtnl_lock */
6897
6898 static int
6899 bnx2_get_link_ksettings(struct net_device *dev,
6900 struct ethtool_link_ksettings *cmd)
6901 {
6902 struct bnx2 *bp = netdev_priv(dev);
6903 int support_serdes = 0, support_copper = 0;
6904 u32 supported, advertising;
6905
6906 supported = SUPPORTED_Autoneg;
6907 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
6908 support_serdes = 1;
6909 support_copper = 1;
6910 } else if (bp->phy_port == PORT_FIBRE)
6911 support_serdes = 1;
6912 else
6913 support_copper = 1;
6914
6915 if (support_serdes) {
6916 supported |= SUPPORTED_1000baseT_Full |
6917 SUPPORTED_FIBRE;
6918 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
6919 supported |= SUPPORTED_2500baseX_Full;
6920 }
6921 if (support_copper) {
6922 supported |= SUPPORTED_10baseT_Half |
6923 SUPPORTED_10baseT_Full |
6924 SUPPORTED_100baseT_Half |
6925 SUPPORTED_100baseT_Full |
6926 SUPPORTED_1000baseT_Full |
6927 SUPPORTED_TP;
6928 }
6929
6930 spin_lock_bh(&bp->phy_lock);
6931 cmd->base.port = bp->phy_port;
6932 advertising = bp->advertising;
6933
6934 if (bp->autoneg & AUTONEG_SPEED) {
6935 cmd->base.autoneg = AUTONEG_ENABLE;
6936 } else {
6937 cmd->base.autoneg = AUTONEG_DISABLE;
6938 }
6939
6940 if (netif_carrier_ok(dev)) {
6941 cmd->base.speed = bp->line_speed;
6942 cmd->base.duplex = bp->duplex;
6943 if (!(bp->phy_flags & BNX2_PHY_FLAG_SERDES)) {
6944 if (bp->phy_flags & BNX2_PHY_FLAG_MDIX)
6945 cmd->base.eth_tp_mdix = ETH_TP_MDI_X;
6946 else
6947 cmd->base.eth_tp_mdix = ETH_TP_MDI;
6948 }
6949 }
6950 else {
6951 cmd->base.speed = SPEED_UNKNOWN;
6952 cmd->base.duplex = DUPLEX_UNKNOWN;
6953 }
6954 spin_unlock_bh(&bp->phy_lock);
6955
6956 cmd->base.phy_address = bp->phy_addr;
6957
6958 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
6959 supported);
6960 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
6961 advertising);
6962
6963 return 0;
6964 }
6965
6966 static int
6967 bnx2_set_link_ksettings(struct net_device *dev,
6968 const struct ethtool_link_ksettings *cmd)
6969 {
6970 struct bnx2 *bp = netdev_priv(dev);
6971 u8 autoneg = bp->autoneg;
6972 u8 req_duplex = bp->req_duplex;
6973 u16 req_line_speed = bp->req_line_speed;
6974 u32 advertising = bp->advertising;
6975 int err = -EINVAL;
6976
6977 spin_lock_bh(&bp->phy_lock);
6978
6979 if (cmd->base.port != PORT_TP && cmd->base.port != PORT_FIBRE)
6980 goto err_out_unlock;
6981
6982 if (cmd->base.port != bp->phy_port &&
6983 !(bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP))
6984 goto err_out_unlock;
6985
6986 /* If device is down, we can store the settings only if the user
6987 * is setting the currently active port.
6988 */
6989 if (!netif_running(dev) && cmd->base.port != bp->phy_port)
6990 goto err_out_unlock;
6991
6992 if (cmd->base.autoneg == AUTONEG_ENABLE) {
6993 autoneg |= AUTONEG_SPEED;
6994
6995 ethtool_convert_link_mode_to_legacy_u32(
6996 &advertising, cmd->link_modes.advertising);
6997
6998 if (cmd->base.port == PORT_TP) {
6999 advertising &= ETHTOOL_ALL_COPPER_SPEED;
7000 if (!advertising)
7001 advertising = ETHTOOL_ALL_COPPER_SPEED;
7002 } else {
7003 advertising &= ETHTOOL_ALL_FIBRE_SPEED;
7004 if (!advertising)
7005 advertising = ETHTOOL_ALL_FIBRE_SPEED;
7006 }
7007 advertising |= ADVERTISED_Autoneg;
7008 }
7009 else {
7010 u32 speed = cmd->base.speed;
7011
7012 if (cmd->base.port == PORT_FIBRE) {
7013 if ((speed != SPEED_1000 &&
7014 speed != SPEED_2500) ||
7015 (cmd->base.duplex != DUPLEX_FULL))
7016 goto err_out_unlock;
7017
7018 if (speed == SPEED_2500 &&
7019 !(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
7020 goto err_out_unlock;
7021 } else if (speed == SPEED_1000 || speed == SPEED_2500)
7022 goto err_out_unlock;
7023
7024 autoneg &= ~AUTONEG_SPEED;
7025 req_line_speed = speed;
7026 req_duplex = cmd->base.duplex;
7027 advertising = 0;
7028 }
7029
7030 bp->autoneg = autoneg;
7031 bp->advertising = advertising;
7032 bp->req_line_speed = req_line_speed;
7033 bp->req_duplex = req_duplex;
7034
7035 err = 0;
7036 /* If device is down, the new settings will be picked up when it is
7037 * brought up.
7038 */
7039 if (netif_running(dev))
7040 err = bnx2_setup_phy(bp, cmd->base.port);
7041
7042 err_out_unlock:
7043 spin_unlock_bh(&bp->phy_lock);
7044
7045 return err;
7046 }
7047
7048 static void
7049 bnx2_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
7050 {
7051 struct bnx2 *bp = netdev_priv(dev);
7052
7053 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
7054 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
7055 strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
7056 strlcpy(info->fw_version, bp->fw_version, sizeof(info->fw_version));
7057 }
7058
7059 #define BNX2_REGDUMP_LEN (32 * 1024)
7060
7061 static int
7062 bnx2_get_regs_len(struct net_device *dev)
7063 {
7064 return BNX2_REGDUMP_LEN;
7065 }
7066
7067 static void
7068 bnx2_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
7069 {
7070 u32 *p = _p, i, offset;
7071 u8 *orig_p = _p;
7072 struct bnx2 *bp = netdev_priv(dev);
7073 static const u32 reg_boundaries[] = {
7074 0x0000, 0x0098, 0x0400, 0x045c,
7075 0x0800, 0x0880, 0x0c00, 0x0c10,
7076 0x0c30, 0x0d08, 0x1000, 0x101c,
7077 0x1040, 0x1048, 0x1080, 0x10a4,
7078 0x1400, 0x1490, 0x1498, 0x14f0,
7079 0x1500, 0x155c, 0x1580, 0x15dc,
7080 0x1600, 0x1658, 0x1680, 0x16d8,
7081 0x1800, 0x1820, 0x1840, 0x1854,
7082 0x1880, 0x1894, 0x1900, 0x1984,
7083 0x1c00, 0x1c0c, 0x1c40, 0x1c54,
7084 0x1c80, 0x1c94, 0x1d00, 0x1d84,
7085 0x2000, 0x2030, 0x23c0, 0x2400,
7086 0x2800, 0x2820, 0x2830, 0x2850,
7087 0x2b40, 0x2c10, 0x2fc0, 0x3058,
7088 0x3c00, 0x3c94, 0x4000, 0x4010,
7089 0x4080, 0x4090, 0x43c0, 0x4458,
7090 0x4c00, 0x4c18, 0x4c40, 0x4c54,
7091 0x4fc0, 0x5010, 0x53c0, 0x5444,
7092 0x5c00, 0x5c18, 0x5c80, 0x5c90,
7093 0x5fc0, 0x6000, 0x6400, 0x6428,
7094 0x6800, 0x6848, 0x684c, 0x6860,
7095 0x6888, 0x6910, 0x8000
7096 };
7097
7098 regs->version = 0;
7099
7100 memset(p, 0, BNX2_REGDUMP_LEN);
7101
7102 if (!netif_running(bp->dev))
7103 return;
7104
7105 i = 0;
7106 offset = reg_boundaries[0];
7107 p += offset;
7108 while (offset < BNX2_REGDUMP_LEN) {
7109 *p++ = BNX2_RD(bp, offset);
7110 offset += 4;
7111 if (offset == reg_boundaries[i + 1]) {
7112 offset = reg_boundaries[i + 2];
7113 p = (u32 *) (orig_p + offset);
7114 i += 2;
7115 }
7116 }
7117 }
7118
7119 static void
7120 bnx2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
7121 {
7122 struct bnx2 *bp = netdev_priv(dev);
7123
7124 if (bp->flags & BNX2_FLAG_NO_WOL) {
7125 wol->supported = 0;
7126 wol->wolopts = 0;
7127 }
7128 else {
7129 wol->supported = WAKE_MAGIC;
7130 if (bp->wol)
7131 wol->wolopts = WAKE_MAGIC;
7132 else
7133 wol->wolopts = 0;
7134 }
7135 memset(&wol->sopass, 0, sizeof(wol->sopass));
7136 }
7137
7138 static int
7139 bnx2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
7140 {
7141 struct bnx2 *bp = netdev_priv(dev);
7142
7143 if (wol->wolopts & ~WAKE_MAGIC)
7144 return -EINVAL;
7145
7146 if (wol->wolopts & WAKE_MAGIC) {
7147 if (bp->flags & BNX2_FLAG_NO_WOL)
7148 return -EINVAL;
7149
7150 bp->wol = 1;
7151 }
7152 else {
7153 bp->wol = 0;
7154 }
7155
7156 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);
7157
7158 return 0;
7159 }
7160
7161 static int
7162 bnx2_nway_reset(struct net_device *dev)
7163 {
7164 struct bnx2 *bp = netdev_priv(dev);
7165 u32 bmcr;
7166
7167 if (!netif_running(dev))
7168 return -EAGAIN;
7169
7170 if (!(bp->autoneg & AUTONEG_SPEED)) {
7171 return -EINVAL;
7172 }
7173
7174 spin_lock_bh(&bp->phy_lock);
7175
7176 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
7177 int rc;
7178
7179 rc = bnx2_setup_remote_phy(bp, bp->phy_port);
7180 spin_unlock_bh(&bp->phy_lock);
7181 return rc;
7182 }
7183
7184 /* Force a link down visible on the other side */
7185 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
7186 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
7187 spin_unlock_bh(&bp->phy_lock);
7188
7189 msleep(20);
7190
7191 spin_lock_bh(&bp->phy_lock);
7192
7193 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
7194 bp->serdes_an_pending = 1;
7195 mod_timer(&bp->timer, jiffies + bp->current_interval);
7196 }
7197
7198 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
7199 bmcr &= ~BMCR_LOOPBACK;
7200 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART | BMCR_ANENABLE);
7201
7202 spin_unlock_bh(&bp->phy_lock);
7203
7204 return 0;
7205 }
7206
7207 static u32
7208 bnx2_get_link(struct net_device *dev)
7209 {
7210 struct bnx2 *bp = netdev_priv(dev);
7211
7212 return bp->link_up;
7213 }
7214
7215 static int
7216 bnx2_get_eeprom_len(struct net_device *dev)
7217 {
7218 struct bnx2 *bp = netdev_priv(dev);
7219
7220 if (bp->flash_info == NULL)
7221 return 0;
7222
7223 return (int) bp->flash_size;
7224 }
7225
7226 static int
7227 bnx2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
7228 u8 *eebuf)
7229 {
7230 struct bnx2 *bp = netdev_priv(dev);
7231 int rc;
7232
7233 /* parameters already validated in ethtool_get_eeprom */
7234
7235 rc = bnx2_nvram_read(bp, eeprom->offset, eebuf, eeprom->len);
7236
7237 return rc;
7238 }
7239
7240 static int
7241 bnx2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
7242 u8 *eebuf)
7243 {
7244 struct bnx2 *bp = netdev_priv(dev);
7245 int rc;
7246
7247 /* parameters already validated in ethtool_set_eeprom */
7248
7249 rc = bnx2_nvram_write(bp, eeprom->offset, eebuf, eeprom->len);
7250
7251 return rc;
7252 }
7253
7254 static int
7255 bnx2_get_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
7256 {
7257 struct bnx2 *bp = netdev_priv(dev);
7258
7259 memset(coal, 0, sizeof(struct ethtool_coalesce));
7260
7261 coal->rx_coalesce_usecs = bp->rx_ticks;
7262 coal->rx_max_coalesced_frames = bp->rx_quick_cons_trip;
7263 coal->rx_coalesce_usecs_irq = bp->rx_ticks_int;
7264 coal->rx_max_coalesced_frames_irq = bp->rx_quick_cons_trip_int;
7265
7266 coal->tx_coalesce_usecs = bp->tx_ticks;
7267 coal->tx_max_coalesced_frames = bp->tx_quick_cons_trip;
7268 coal->tx_coalesce_usecs_irq = bp->tx_ticks_int;
7269 coal->tx_max_coalesced_frames_irq = bp->tx_quick_cons_trip_int;
7270
7271 coal->stats_block_coalesce_usecs = bp->stats_ticks;
7272
7273 return 0;
7274 }
7275
7276 static int
7277 bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
7278 {
7279 struct bnx2 *bp = netdev_priv(dev);
7280
7281 bp->rx_ticks = (u16) coal->rx_coalesce_usecs;
7282 if (bp->rx_ticks > 0x3ff) bp->rx_ticks = 0x3ff;
7283
7284 bp->rx_quick_cons_trip = (u16) coal->rx_max_coalesced_frames;
7285 if (bp->rx_quick_cons_trip > 0xff) bp->rx_quick_cons_trip = 0xff;
7286
7287 bp->rx_ticks_int = (u16) coal->rx_coalesce_usecs_irq;
7288 if (bp->rx_ticks_int > 0x3ff) bp->rx_ticks_int = 0x3ff;
7289
7290 bp->rx_quick_cons_trip_int = (u16) coal->rx_max_coalesced_frames_irq;
7291 if (bp->rx_quick_cons_trip_int > 0xff)
7292 bp->rx_quick_cons_trip_int = 0xff;
7293
7294 bp->tx_ticks = (u16) coal->tx_coalesce_usecs;
7295 if (bp->tx_ticks > 0x3ff) bp->tx_ticks = 0x3ff;
7296
7297 bp->tx_quick_cons_trip = (u16) coal->tx_max_coalesced_frames;
7298 if (bp->tx_quick_cons_trip > 0xff) bp->tx_quick_cons_trip = 0xff;
7299
7300 bp->tx_ticks_int = (u16) coal->tx_coalesce_usecs_irq;
7301 if (bp->tx_ticks_int > 0x3ff) bp->tx_ticks_int = 0x3ff;
7302
7303 bp->tx_quick_cons_trip_int = (u16) coal->tx_max_coalesced_frames_irq;
7304 if (bp->tx_quick_cons_trip_int > 0xff) bp->tx_quick_cons_trip_int =
7305 0xff;
7306
7307 bp->stats_ticks = coal->stats_block_coalesce_usecs;
7308 if (bp->flags & BNX2_FLAG_BROKEN_STATS) {
7309 if (bp->stats_ticks != 0 && bp->stats_ticks != USEC_PER_SEC)
7310 bp->stats_ticks = USEC_PER_SEC;
7311 }
7312 if (bp->stats_ticks > BNX2_HC_STATS_TICKS_HC_STAT_TICKS)
7313 bp->stats_ticks = BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
7314 bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
7315
7316 if (netif_running(bp->dev)) {
7317 bnx2_netif_stop(bp, true);
7318 bnx2_init_nic(bp, 0);
7319 bnx2_netif_start(bp, true);
7320 }
7321
7322 return 0;
7323 }
7324
7325 static void
7326 bnx2_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
7327 {
7328 struct bnx2 *bp = netdev_priv(dev);
7329
7330 ering->rx_max_pending = BNX2_MAX_TOTAL_RX_DESC_CNT;
7331 ering->rx_jumbo_max_pending = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;
7332
7333 ering->rx_pending = bp->rx_ring_size;
7334 ering->rx_jumbo_pending = bp->rx_pg_ring_size;
7335
7336 ering->tx_max_pending = BNX2_MAX_TX_DESC_CNT;
7337 ering->tx_pending = bp->tx_ring_size;
7338 }
7339
7340 static int
7341 bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx, bool reset_irq)
7342 {
7343 if (netif_running(bp->dev)) {
7344 /* Reset will erase chipset stats; save them */
7345 bnx2_save_stats(bp);
7346
7347 bnx2_netif_stop(bp, true);
7348 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
7349 if (reset_irq) {
7350 bnx2_free_irq(bp);
7351 bnx2_del_napi(bp);
7352 } else {
7353 __bnx2_free_irq(bp);
7354 }
7355 bnx2_free_skbs(bp);
7356 bnx2_free_mem(bp);
7357 }
7358
7359 bnx2_set_rx_ring_size(bp, rx);
7360 bp->tx_ring_size = tx;
7361
7362 if (netif_running(bp->dev)) {
7363 int rc = 0;
7364
7365 if (reset_irq) {
7366 rc = bnx2_setup_int_mode(bp, disable_msi);
7367 bnx2_init_napi(bp);
7368 }
7369
7370 if (!rc)
7371 rc = bnx2_alloc_mem(bp);
7372
7373 if (!rc)
7374 rc = bnx2_request_irq(bp);
7375
7376 if (!rc)
7377 rc = bnx2_init_nic(bp, 0);
7378
7379 if (rc) {
7380 bnx2_napi_enable(bp);
7381 dev_close(bp->dev);
7382 return rc;
7383 }
7384 #ifdef BCM_CNIC
7385 mutex_lock(&bp->cnic_lock);
7386 /* Let cnic know about the new status block. */
7387 if (bp->cnic_eth_dev.drv_state & CNIC_DRV_STATE_REGD)
7388 bnx2_setup_cnic_irq_info(bp);
7389 mutex_unlock(&bp->cnic_lock);
7390 #endif
7391 bnx2_netif_start(bp, true);
7392 }
7393 return 0;
7394 }
7395
7396 static int
7397 bnx2_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
7398 {
7399 struct bnx2 *bp = netdev_priv(dev);
7400 int rc;
7401
7402 if ((ering->rx_pending > BNX2_MAX_TOTAL_RX_DESC_CNT) ||
7403 (ering->tx_pending > BNX2_MAX_TX_DESC_CNT) ||
7404 (ering->tx_pending <= MAX_SKB_FRAGS)) {
7405
7406 return -EINVAL;
7407 }
7408 rc = bnx2_change_ring_size(bp, ering->rx_pending, ering->tx_pending,
7409 false);
7410 return rc;
7411 }
7412
7413 static void
7414 bnx2_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
7415 {
7416 struct bnx2 *bp = netdev_priv(dev);
7417
7418 epause->autoneg = ((bp->autoneg & AUTONEG_FLOW_CTRL) != 0);
7419 epause->rx_pause = ((bp->flow_ctrl & FLOW_CTRL_RX) != 0);
7420 epause->tx_pause = ((bp->flow_ctrl & FLOW_CTRL_TX) != 0);
7421 }
7422
7423 static int
7424 bnx2_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
7425 {
7426 struct bnx2 *bp = netdev_priv(dev);
7427
7428 bp->req_flow_ctrl = 0;
7429 if (epause->rx_pause)
7430 bp->req_flow_ctrl |= FLOW_CTRL_RX;
7431 if (epause->tx_pause)
7432 bp->req_flow_ctrl |= FLOW_CTRL_TX;
7433
7434 if (epause->autoneg) {
7435 bp->autoneg |= AUTONEG_FLOW_CTRL;
7436 }
7437 else {
7438 bp->autoneg &= ~AUTONEG_FLOW_CTRL;
7439 }
7440
7441 if (netif_running(dev)) {
7442 spin_lock_bh(&bp->phy_lock);
7443 bnx2_setup_phy(bp, bp->phy_port);
7444 spin_unlock_bh(&bp->phy_lock);
7445 }
7446
7447 return 0;
7448 }
7449
7450 static struct {
7451 char string[ETH_GSTRING_LEN];
7452 } bnx2_stats_str_arr[] = {
7453 { "rx_bytes" },
7454 { "rx_error_bytes" },
7455 { "tx_bytes" },
7456 { "tx_error_bytes" },
7457 { "rx_ucast_packets" },
7458 { "rx_mcast_packets" },
7459 { "rx_bcast_packets" },
7460 { "tx_ucast_packets" },
7461 { "tx_mcast_packets" },
7462 { "tx_bcast_packets" },
7463 { "tx_mac_errors" },
7464 { "tx_carrier_errors" },
7465 { "rx_crc_errors" },
7466 { "rx_align_errors" },
7467 { "tx_single_collisions" },
7468 { "tx_multi_collisions" },
7469 { "tx_deferred" },
7470 { "tx_excess_collisions" },
7471 { "tx_late_collisions" },
7472 { "tx_total_collisions" },
7473 { "rx_fragments" },
7474 { "rx_jabbers" },
7475 { "rx_undersize_packets" },
7476 { "rx_oversize_packets" },
7477 { "rx_64_byte_packets" },
7478 { "rx_65_to_127_byte_packets" },
7479 { "rx_128_to_255_byte_packets" },
7480 { "rx_256_to_511_byte_packets" },
7481 { "rx_512_to_1023_byte_packets" },
7482 { "rx_1024_to_1522_byte_packets" },
7483 { "rx_1523_to_9022_byte_packets" },
7484 { "tx_64_byte_packets" },
7485 { "tx_65_to_127_byte_packets" },
7486 { "tx_128_to_255_byte_packets" },
7487 { "tx_256_to_511_byte_packets" },
7488 { "tx_512_to_1023_byte_packets" },
7489 { "tx_1024_to_1522_byte_packets" },
7490 { "tx_1523_to_9022_byte_packets" },
7491 { "rx_xon_frames" },
7492 { "rx_xoff_frames" },
7493 { "tx_xon_frames" },
7494 { "tx_xoff_frames" },
7495 { "rx_mac_ctrl_frames" },
7496 { "rx_filtered_packets" },
7497 { "rx_ftq_discards" },
7498 { "rx_discards" },
7499 { "rx_fw_discards" },
7500 };
7501
7502 #define BNX2_NUM_STATS ARRAY_SIZE(bnx2_stats_str_arr)
7503
7504 #define STATS_OFFSET32(offset_name) (offsetof(struct statistics_block, offset_name) / 4)
7505
7506 static const unsigned long bnx2_stats_offset_arr[BNX2_NUM_STATS] = {
7507 STATS_OFFSET32(stat_IfHCInOctets_hi),
7508 STATS_OFFSET32(stat_IfHCInBadOctets_hi),
7509 STATS_OFFSET32(stat_IfHCOutOctets_hi),
7510 STATS_OFFSET32(stat_IfHCOutBadOctets_hi),
7511 STATS_OFFSET32(stat_IfHCInUcastPkts_hi),
7512 STATS_OFFSET32(stat_IfHCInMulticastPkts_hi),
7513 STATS_OFFSET32(stat_IfHCInBroadcastPkts_hi),
7514 STATS_OFFSET32(stat_IfHCOutUcastPkts_hi),
7515 STATS_OFFSET32(stat_IfHCOutMulticastPkts_hi),
7516 STATS_OFFSET32(stat_IfHCOutBroadcastPkts_hi),
7517 STATS_OFFSET32(stat_emac_tx_stat_dot3statsinternalmactransmiterrors),
7518 STATS_OFFSET32(stat_Dot3StatsCarrierSenseErrors),
7519 STATS_OFFSET32(stat_Dot3StatsFCSErrors),
7520 STATS_OFFSET32(stat_Dot3StatsAlignmentErrors),
7521 STATS_OFFSET32(stat_Dot3StatsSingleCollisionFrames),
7522 STATS_OFFSET32(stat_Dot3StatsMultipleCollisionFrames),
7523 STATS_OFFSET32(stat_Dot3StatsDeferredTransmissions),
7524 STATS_OFFSET32(stat_Dot3StatsExcessiveCollisions),
7525 STATS_OFFSET32(stat_Dot3StatsLateCollisions),
7526 STATS_OFFSET32(stat_EtherStatsCollisions),
7527 STATS_OFFSET32(stat_EtherStatsFragments),
7528 STATS_OFFSET32(stat_EtherStatsJabbers),
7529 STATS_OFFSET32(stat_EtherStatsUndersizePkts),
7530 STATS_OFFSET32(stat_EtherStatsOverrsizePkts),
7531 STATS_OFFSET32(stat_EtherStatsPktsRx64Octets),
7532 STATS_OFFSET32(stat_EtherStatsPktsRx65Octetsto127Octets),
7533 STATS_OFFSET32(stat_EtherStatsPktsRx128Octetsto255Octets),
7534 STATS_OFFSET32(stat_EtherStatsPktsRx256Octetsto511Octets),
7535 STATS_OFFSET32(stat_EtherStatsPktsRx512Octetsto1023Octets),
7536 STATS_OFFSET32(stat_EtherStatsPktsRx1024Octetsto1522Octets),
7537 STATS_OFFSET32(stat_EtherStatsPktsRx1523Octetsto9022Octets),
7538 STATS_OFFSET32(stat_EtherStatsPktsTx64Octets),
7539 STATS_OFFSET32(stat_EtherStatsPktsTx65Octetsto127Octets),
7540 STATS_OFFSET32(stat_EtherStatsPktsTx128Octetsto255Octets),
7541 STATS_OFFSET32(stat_EtherStatsPktsTx256Octetsto511Octets),
7542 STATS_OFFSET32(stat_EtherStatsPktsTx512Octetsto1023Octets),
7543 STATS_OFFSET32(stat_EtherStatsPktsTx1024Octetsto1522Octets),
7544 STATS_OFFSET32(stat_EtherStatsPktsTx1523Octetsto9022Octets),
7545 STATS_OFFSET32(stat_XonPauseFramesReceived),
7546 STATS_OFFSET32(stat_XoffPauseFramesReceived),
7547 STATS_OFFSET32(stat_OutXonSent),
7548 STATS_OFFSET32(stat_OutXoffSent),
7549 STATS_OFFSET32(stat_MacControlFramesReceived),
7550 STATS_OFFSET32(stat_IfInFramesL2FilterDiscards),
7551 STATS_OFFSET32(stat_IfInFTQDiscards),
7552 STATS_OFFSET32(stat_IfInMBUFDiscards),
7553 STATS_OFFSET32(stat_FwRxDrop),
7554 };
7555
7556 /* stat_IfHCInBadOctets and stat_Dot3StatsCarrierSenseErrors are
7557 * skipped because of errata.
7558 */
7559 static u8 bnx2_5706_stats_len_arr[BNX2_NUM_STATS] = {
7560 8,0,8,8,8,8,8,8,8,8,
7561 4,0,4,4,4,4,4,4,4,4,
7562 4,4,4,4,4,4,4,4,4,4,
7563 4,4,4,4,4,4,4,4,4,4,
7564 4,4,4,4,4,4,4,
7565 };
7566
7567 static u8 bnx2_5708_stats_len_arr[BNX2_NUM_STATS] = {
7568 8,0,8,8,8,8,8,8,8,8,
7569 4,4,4,4,4,4,4,4,4,4,
7570 4,4,4,4,4,4,4,4,4,4,
7571 4,4,4,4,4,4,4,4,4,4,
7572 4,4,4,4,4,4,4,
7573 };
7574
7575 #define BNX2_NUM_TESTS 6
7576
7577 static struct {
7578 char string[ETH_GSTRING_LEN];
7579 } bnx2_tests_str_arr[BNX2_NUM_TESTS] = {
7580 { "register_test (offline)" },
7581 { "memory_test (offline)" },
7582 { "loopback_test (offline)" },
7583 { "nvram_test (online)" },
7584 { "interrupt_test (online)" },
7585 { "link_test (online)" },
7586 };
7587
7588 static int
7589 bnx2_get_sset_count(struct net_device *dev, int sset)
7590 {
7591 switch (sset) {
7592 case ETH_SS_TEST:
7593 return BNX2_NUM_TESTS;
7594 case ETH_SS_STATS:
7595 return BNX2_NUM_STATS;
7596 default:
7597 return -EOPNOTSUPP;
7598 }
7599 }
7600
7601 static void
7602 bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
7603 {
7604 struct bnx2 *bp = netdev_priv(dev);
7605
7606 memset(buf, 0, sizeof(u64) * BNX2_NUM_TESTS);
7607 if (etest->flags & ETH_TEST_FL_OFFLINE) {
7608 int i;
7609
7610 bnx2_netif_stop(bp, true);
7611 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);
7612 bnx2_free_skbs(bp);
7613
7614 if (bnx2_test_registers(bp) != 0) {
7615 buf[0] = 1;
7616 etest->flags |= ETH_TEST_FL_FAILED;
7617 }
7618 if (bnx2_test_memory(bp) != 0) {
7619 buf[1] = 1;
7620 etest->flags |= ETH_TEST_FL_FAILED;
7621 }
7622 if ((buf[2] = bnx2_test_loopback(bp)) != 0)
7623 etest->flags |= ETH_TEST_FL_FAILED;
7624
7625 if (!netif_running(bp->dev))
7626 bnx2_shutdown_chip(bp);
7627 else {
7628 bnx2_init_nic(bp, 1);
7629 bnx2_netif_start(bp, true);
7630 }
7631
7632 /* wait for link up */
7633 for (i = 0; i < 7; i++) {
7634 if (bp->link_up)
7635 break;
7636 msleep_interruptible(1000);
7637 }
7638 }
7639
7640 if (bnx2_test_nvram(bp) != 0) {
7641 buf[3] = 1;
7642 etest->flags |= ETH_TEST_FL_FAILED;
7643 }
7644 if (bnx2_test_intr(bp) != 0) {
7645 buf[4] = 1;
7646 etest->flags |= ETH_TEST_FL_FAILED;
7647 }
7648
7649 if (bnx2_test_link(bp) != 0) {
7650 buf[5] = 1;
7651 etest->flags |= ETH_TEST_FL_FAILED;
7652
7653 }
7654 }
7655
7656 static void
7657 bnx2_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
7658 {
7659 switch (stringset) {
7660 case ETH_SS_STATS:
7661 memcpy(buf, bnx2_stats_str_arr,
7662 sizeof(bnx2_stats_str_arr));
7663 break;
7664 case ETH_SS_TEST:
7665 memcpy(buf, bnx2_tests_str_arr,
7666 sizeof(bnx2_tests_str_arr));
7667 break;
7668 }
7669 }
7670
7671 static void
7672 bnx2_get_ethtool_stats(struct net_device *dev,
7673 struct ethtool_stats *stats, u64 *buf)
7674 {
7675 struct bnx2 *bp = netdev_priv(dev);
7676 int i;
7677 u32 *hw_stats = (u32 *) bp->stats_blk;
7678 u32 *temp_stats = (u32 *) bp->temp_stats_blk;
7679 u8 *stats_len_arr = NULL;
7680
7681 if (hw_stats == NULL) {
7682 memset(buf, 0, sizeof(u64) * BNX2_NUM_STATS);
7683 return;
7684 }
7685
7686 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
7687 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) ||
7688 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A2) ||
7689 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))
7690 stats_len_arr = bnx2_5706_stats_len_arr;
7691 else
7692 stats_len_arr = bnx2_5708_stats_len_arr;
7693
7694 for (i = 0; i < BNX2_NUM_STATS; i++) {
7695 unsigned long offset;
7696
7697 if (stats_len_arr[i] == 0) {
7698 /* skip this counter */
7699 buf[i] = 0;
7700 continue;
7701 }
7702
7703 offset = bnx2_stats_offset_arr[i];
7704 if (stats_len_arr[i] == 4) {
7705 /* 4-byte counter */
7706 buf[i] = (u64) *(hw_stats + offset) +
7707 *(temp_stats + offset);
7708 continue;
7709 }
7710 /* 8-byte counter */
7711 buf[i] = (((u64) *(hw_stats + offset)) << 32) +
7712 *(hw_stats + offset + 1) +
7713 (((u64) *(temp_stats + offset)) << 32) +
7714 *(temp_stats + offset + 1);
7715 }
7716 }
7717
7718 static int
7719 bnx2_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state)
7720 {
7721 struct bnx2 *bp = netdev_priv(dev);
7722
7723 switch (state) {
7724 case ETHTOOL_ID_ACTIVE:
7725 bp->leds_save = BNX2_RD(bp, BNX2_MISC_CFG);
7726 BNX2_WR(bp, BNX2_MISC_CFG, BNX2_MISC_CFG_LEDMODE_MAC);
7727 return 1; /* cycle on/off once per second */
7728
7729 case ETHTOOL_ID_ON:
7730 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE |
7731 BNX2_EMAC_LED_1000MB_OVERRIDE |
7732 BNX2_EMAC_LED_100MB_OVERRIDE |
7733 BNX2_EMAC_LED_10MB_OVERRIDE |
7734 BNX2_EMAC_LED_TRAFFIC_OVERRIDE |
7735 BNX2_EMAC_LED_TRAFFIC);
7736 break;
7737
7738 case ETHTOOL_ID_OFF:
7739 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE);
7740 break;
7741
7742 case ETHTOOL_ID_INACTIVE:
7743 BNX2_WR(bp, BNX2_EMAC_LED, 0);
7744 BNX2_WR(bp, BNX2_MISC_CFG, bp->leds_save);
7745 break;
7746 }
7747
7748 return 0;
7749 }
7750
7751 static int
7752 bnx2_set_features(struct net_device *dev, netdev_features_t features)
7753 {
7754 struct bnx2 *bp = netdev_priv(dev);
7755
7756 /* TSO with VLAN tag won't work with current firmware */
7757 if (features & NETIF_F_HW_VLAN_CTAG_TX)
7758 dev->vlan_features |= (dev->hw_features & NETIF_F_ALL_TSO);
7759 else
7760 dev->vlan_features &= ~NETIF_F_ALL_TSO;
7761
7762 if ((!!(features & NETIF_F_HW_VLAN_CTAG_RX) !=
7763 !!(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG)) &&
7764 netif_running(dev)) {
7765 bnx2_netif_stop(bp, false);
7766 dev->features = features;
7767 bnx2_set_rx_mode(dev);
7768 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);
7769 bnx2_netif_start(bp, false);
7770 return 1;
7771 }
7772
7773 return 0;
7774 }
7775
7776 static void bnx2_get_channels(struct net_device *dev,
7777 struct ethtool_channels *channels)
7778 {
7779 struct bnx2 *bp = netdev_priv(dev);
7780 u32 max_rx_rings = 1;
7781 u32 max_tx_rings = 1;
7782
7783 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
7784 max_rx_rings = RX_MAX_RINGS;
7785 max_tx_rings = TX_MAX_RINGS;
7786 }
7787
7788 channels->max_rx = max_rx_rings;
7789 channels->max_tx = max_tx_rings;
7790 channels->max_other = 0;
7791 channels->max_combined = 0;
7792 channels->rx_count = bp->num_rx_rings;
7793 channels->tx_count = bp->num_tx_rings;
7794 channels->other_count = 0;
7795 channels->combined_count = 0;
7796 }
7797
7798 static int bnx2_set_channels(struct net_device *dev,
7799 struct ethtool_channels *channels)
7800 {
7801 struct bnx2 *bp = netdev_priv(dev);
7802 u32 max_rx_rings = 1;
7803 u32 max_tx_rings = 1;
7804 int rc = 0;
7805
7806 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
7807 max_rx_rings = RX_MAX_RINGS;
7808 max_tx_rings = TX_MAX_RINGS;
7809 }
7810 if (channels->rx_count > max_rx_rings ||
7811 channels->tx_count > max_tx_rings)
7812 return -EINVAL;
7813
7814 bp->num_req_rx_rings = channels->rx_count;
7815 bp->num_req_tx_rings = channels->tx_count;
7816
7817 if (netif_running(dev))
7818 rc = bnx2_change_ring_size(bp, bp->rx_ring_size,
7819 bp->tx_ring_size, true);
7820
7821 return rc;
7822 }
7823
7824 static const struct ethtool_ops bnx2_ethtool_ops = {
7825 .get_drvinfo = bnx2_get_drvinfo,
7826 .get_regs_len = bnx2_get_regs_len,
7827 .get_regs = bnx2_get_regs,
7828 .get_wol = bnx2_get_wol,
7829 .set_wol = bnx2_set_wol,
7830 .nway_reset = bnx2_nway_reset,
7831 .get_link = bnx2_get_link,
7832 .get_eeprom_len = bnx2_get_eeprom_len,
7833 .get_eeprom = bnx2_get_eeprom,
7834 .set_eeprom = bnx2_set_eeprom,
7835 .get_coalesce = bnx2_get_coalesce,
7836 .set_coalesce = bnx2_set_coalesce,
7837 .get_ringparam = bnx2_get_ringparam,
7838 .set_ringparam = bnx2_set_ringparam,
7839 .get_pauseparam = bnx2_get_pauseparam,
7840 .set_pauseparam = bnx2_set_pauseparam,
7841 .self_test = bnx2_self_test,
7842 .get_strings = bnx2_get_strings,
7843 .set_phys_id = bnx2_set_phys_id,
7844 .get_ethtool_stats = bnx2_get_ethtool_stats,
7845 .get_sset_count = bnx2_get_sset_count,
7846 .get_channels = bnx2_get_channels,
7847 .set_channels = bnx2_set_channels,
7848 .get_link_ksettings = bnx2_get_link_ksettings,
7849 .set_link_ksettings = bnx2_set_link_ksettings,
7850 };
7851
7852 /* Called with rtnl_lock */
7853 static int
7854 bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
7855 {
7856 struct mii_ioctl_data *data = if_mii(ifr);
7857 struct bnx2 *bp = netdev_priv(dev);
7858 int err;
7859
7860 switch(cmd) {
7861 case SIOCGMIIPHY:
7862 data->phy_id = bp->phy_addr;
7863
7864 /* fallthru */
7865 case SIOCGMIIREG: {
7866 u32 mii_regval;
7867
7868 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
7869 return -EOPNOTSUPP;
7870
7871 if (!netif_running(dev))
7872 return -EAGAIN;
7873
7874 spin_lock_bh(&bp->phy_lock);
7875 err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);
7876 spin_unlock_bh(&bp->phy_lock);
7877
7878 data->val_out = mii_regval;
7879
7880 return err;
7881 }
7882
7883 case SIOCSMIIREG:
7884 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
7885 return -EOPNOTSUPP;
7886
7887 if (!netif_running(dev))
7888 return -EAGAIN;
7889
7890 spin_lock_bh(&bp->phy_lock);
7891 err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);
7892 spin_unlock_bh(&bp->phy_lock);
7893
7894 return err;
7895
7896 default:
7897 /* do nothing */
7898 break;
7899 }
7900 return -EOPNOTSUPP;
7901 }
7902
7903 /* Called with rtnl_lock */
7904 static int
7905 bnx2_change_mac_addr(struct net_device *dev, void *p)
7906 {
7907 struct sockaddr *addr = p;
7908 struct bnx2 *bp = netdev_priv(dev);
7909
7910 if (!is_valid_ether_addr(addr->sa_data))
7911 return -EADDRNOTAVAIL;
7912
7913 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7914 if (netif_running(dev))
7915 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
7916
7917 return 0;
7918 }
7919
7920 /* Called with rtnl_lock */
7921 static int
7922 bnx2_change_mtu(struct net_device *dev, int new_mtu)
7923 {
7924 struct bnx2 *bp = netdev_priv(dev);
7925
7926 dev->mtu = new_mtu;
7927 return bnx2_change_ring_size(bp, bp->rx_ring_size, bp->tx_ring_size,
7928 false);
7929 }
7930
7931 #ifdef CONFIG_NET_POLL_CONTROLLER
7932 static void
7933 poll_bnx2(struct net_device *dev)
7934 {
7935 struct bnx2 *bp = netdev_priv(dev);
7936 int i;
7937
7938 for (i = 0; i < bp->irq_nvecs; i++) {
7939 struct bnx2_irq *irq = &bp->irq_tbl[i];
7940
7941 disable_irq(irq->vector);
7942 irq->handler(irq->vector, &bp->bnx2_napi[i]);
7943 enable_irq(irq->vector);
7944 }
7945 }
7946 #endif
7947
7948 static void
7949 bnx2_get_5709_media(struct bnx2 *bp)
7950 {
7951 u32 val = BNX2_RD(bp, BNX2_MISC_DUAL_MEDIA_CTRL);
7952 u32 bond_id = val & BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID;
7953 u32 strap;
7954
7955 if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)
7956 return;
7957 else if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {
7958 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7959 return;
7960 }
7961
7962 if (val & BNX2_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE)
7963 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;
7964 else
7965 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;
7966
7967 if (bp->func == 0) {
7968 switch (strap) {
7969 case 0x4:
7970 case 0x5:
7971 case 0x6:
7972 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7973 return;
7974 }
7975 } else {
7976 switch (strap) {
7977 case 0x1:
7978 case 0x2:
7979 case 0x4:
7980 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7981 return;
7982 }
7983 }
7984 }
7985
7986 static void
7987 bnx2_get_pci_speed(struct bnx2 *bp)
7988 {
7989 u32 reg;
7990
7991 reg = BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS);
7992 if (reg & BNX2_PCICFG_MISC_STATUS_PCIX_DET) {
7993 u32 clkreg;
7994
7995 bp->flags |= BNX2_FLAG_PCIX;
7996
7997 clkreg = BNX2_RD(bp, BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS);
7998
7999 clkreg &= BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET;
8000 switch (clkreg) {
8001 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_133MHZ:
8002 bp->bus_speed_mhz = 133;
8003 break;
8004
8005 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_95MHZ:
8006 bp->bus_speed_mhz = 100;
8007 break;
8008
8009 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_66MHZ:
8010 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_80MHZ:
8011 bp->bus_speed_mhz = 66;
8012 break;
8013
8014 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_48MHZ:
8015 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_55MHZ:
8016 bp->bus_speed_mhz = 50;
8017 break;
8018
8019 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_LOW:
8020 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_32MHZ:
8021 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_38MHZ:
8022 bp->bus_speed_mhz = 33;
8023 break;
8024 }
8025 }
8026 else {
8027 if (reg & BNX2_PCICFG_MISC_STATUS_M66EN)
8028 bp->bus_speed_mhz = 66;
8029 else
8030 bp->bus_speed_mhz = 33;
8031 }
8032
8033 if (reg & BNX2_PCICFG_MISC_STATUS_32BIT_DET)
8034 bp->flags |= BNX2_FLAG_PCI_32BIT;
8035
8036 }
8037
8038 static void
8039 bnx2_read_vpd_fw_ver(struct bnx2 *bp)
8040 {
8041 int rc, i, j;
8042 u8 *data;
8043 unsigned int block_end, rosize, len;
8044
8045 #define BNX2_VPD_NVRAM_OFFSET 0x300
8046 #define BNX2_VPD_LEN 128
8047 #define BNX2_MAX_VER_SLEN 30
8048
8049 data = kmalloc(256, GFP_KERNEL);
8050 if (!data)
8051 return;
8052
8053 rc = bnx2_nvram_read(bp, BNX2_VPD_NVRAM_OFFSET, data + BNX2_VPD_LEN,
8054 BNX2_VPD_LEN);
8055 if (rc)
8056 goto vpd_done;
8057
8058 for (i = 0; i < BNX2_VPD_LEN; i += 4) {
8059 data[i] = data[i + BNX2_VPD_LEN + 3];
8060 data[i + 1] = data[i + BNX2_VPD_LEN + 2];
8061 data[i + 2] = data[i + BNX2_VPD_LEN + 1];
8062 data[i + 3] = data[i + BNX2_VPD_LEN];
8063 }
8064
8065 i = pci_vpd_find_tag(data, 0, BNX2_VPD_LEN, PCI_VPD_LRDT_RO_DATA);
8066 if (i < 0)
8067 goto vpd_done;
8068
8069 rosize = pci_vpd_lrdt_size(&data[i]);
8070 i += PCI_VPD_LRDT_TAG_SIZE;
8071 block_end = i + rosize;
8072
8073 if (block_end > BNX2_VPD_LEN)
8074 goto vpd_done;
8075
8076 j = pci_vpd_find_info_keyword(data, i, rosize,
8077 PCI_VPD_RO_KEYWORD_MFR_ID);
8078 if (j < 0)
8079 goto vpd_done;
8080
8081 len = pci_vpd_info_field_size(&data[j]);
8082
8083 j += PCI_VPD_INFO_FLD_HDR_SIZE;
8084 if (j + len > block_end || len != 4 ||
8085 memcmp(&data[j], "1028", 4))
8086 goto vpd_done;
8087
8088 j = pci_vpd_find_info_keyword(data, i, rosize,
8089 PCI_VPD_RO_KEYWORD_VENDOR0);
8090 if (j < 0)
8091 goto vpd_done;
8092
8093 len = pci_vpd_info_field_size(&data[j]);
8094
8095 j += PCI_VPD_INFO_FLD_HDR_SIZE;
8096 if (j + len > block_end || len > BNX2_MAX_VER_SLEN)
8097 goto vpd_done;
8098
8099 memcpy(bp->fw_version, &data[j], len);
8100 bp->fw_version[len] = ' ';
8101
8102 vpd_done:
8103 kfree(data);
8104 }
8105
8106 static int
8107 bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
8108 {
8109 struct bnx2 *bp;
8110 int rc, i, j;
8111 u32 reg;
8112 u64 dma_mask, persist_dma_mask;
8113 int err;
8114
8115 SET_NETDEV_DEV(dev, &pdev->dev);
8116 bp = netdev_priv(dev);
8117
8118 bp->flags = 0;
8119 bp->phy_flags = 0;
8120
8121 bp->temp_stats_blk =
8122 kzalloc(sizeof(struct statistics_block), GFP_KERNEL);
8123
8124 if (bp->temp_stats_blk == NULL) {
8125 rc = -ENOMEM;
8126 goto err_out;
8127 }
8128
8129 /* enable device (incl. PCI PM wakeup), and bus-mastering */
8130 rc = pci_enable_device(pdev);
8131 if (rc) {
8132 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
8133 goto err_out;
8134 }
8135
8136 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
8137 dev_err(&pdev->dev,
8138 "Cannot find PCI device base address, aborting\n");
8139 rc = -ENODEV;
8140 goto err_out_disable;
8141 }
8142
8143 rc = pci_request_regions(pdev, DRV_MODULE_NAME);
8144 if (rc) {
8145 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
8146 goto err_out_disable;
8147 }
8148
8149 pci_set_master(pdev);
8150
8151 bp->pm_cap = pdev->pm_cap;
8152 if (bp->pm_cap == 0) {
8153 dev_err(&pdev->dev,
8154 "Cannot find power management capability, aborting\n");
8155 rc = -EIO;
8156 goto err_out_release;
8157 }
8158
8159 bp->dev = dev;
8160 bp->pdev = pdev;
8161
8162 spin_lock_init(&bp->phy_lock);
8163 spin_lock_init(&bp->indirect_lock);
8164 #ifdef BCM_CNIC
8165 mutex_init(&bp->cnic_lock);
8166 #endif
8167 INIT_WORK(&bp->reset_task, bnx2_reset_task);
8168
8169 bp->regview = pci_iomap(pdev, 0, MB_GET_CID_ADDR(TX_TSS_CID +
8170 TX_MAX_TSS_RINGS + 1));
8171 if (!bp->regview) {
8172 dev_err(&pdev->dev, "Cannot map register space, aborting\n");
8173 rc = -ENOMEM;
8174 goto err_out_release;
8175 }
8176
8177 /* Configure byte swap and enable write to the reg_window registers.
8178 * Rely on CPU to do target byte swapping on big endian systems
8179 * The chip's target access swapping will not swap all accesses
8180 */
8181 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG,
8182 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
8183 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP);
8184
8185 bp->chip_id = BNX2_RD(bp, BNX2_MISC_ID);
8186
8187 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
8188 if (!pci_is_pcie(pdev)) {
8189 dev_err(&pdev->dev, "Not PCIE, aborting\n");
8190 rc = -EIO;
8191 goto err_out_unmap;
8192 }
8193 bp->flags |= BNX2_FLAG_PCIE;
8194 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)
8195 bp->flags |= BNX2_FLAG_JUMBO_BROKEN;
8196
8197 /* AER (Advanced Error Reporting) hooks */
8198 err = pci_enable_pcie_error_reporting(pdev);
8199 if (!err)
8200 bp->flags |= BNX2_FLAG_AER_ENABLED;
8201
8202 } else {
8203 bp->pcix_cap = pci_find_capability(pdev, PCI_CAP_ID_PCIX);
8204 if (bp->pcix_cap == 0) {
8205 dev_err(&pdev->dev,
8206 "Cannot find PCIX capability, aborting\n");
8207 rc = -EIO;
8208 goto err_out_unmap;
8209 }
8210 bp->flags |= BNX2_FLAG_BROKEN_STATS;
8211 }
8212
8213 if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&
8214 BNX2_CHIP_REV(bp) != BNX2_CHIP_REV_Ax) {
8215 if (pdev->msix_cap)
8216 bp->flags |= BNX2_FLAG_MSIX_CAP;
8217 }
8218
8219 if (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0 &&
8220 BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A1) {
8221 if (pdev->msi_cap)
8222 bp->flags |= BNX2_FLAG_MSI_CAP;
8223 }
8224
8225 /* 5708 cannot support DMA addresses > 40-bit. */
8226 if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
8227 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
8228 else
8229 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
8230
8231 /* Configure DMA attributes. */
8232 if (pci_set_dma_mask(pdev, dma_mask) == 0) {
8233 dev->features |= NETIF_F_HIGHDMA;
8234 rc = pci_set_consistent_dma_mask(pdev, persist_dma_mask);
8235 if (rc) {
8236 dev_err(&pdev->dev,
8237 "pci_set_consistent_dma_mask failed, aborting\n");
8238 goto err_out_unmap;
8239 }
8240 } else if ((rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
8241 dev_err(&pdev->dev, "System does not support DMA, aborting\n");
8242 goto err_out_unmap;
8243 }
8244
8245 if (!(bp->flags & BNX2_FLAG_PCIE))
8246 bnx2_get_pci_speed(bp);
8247
8248 /* 5706A0 may falsely detect SERR and PERR. */
8249 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
8250 reg = BNX2_RD(bp, PCI_COMMAND);
8251 reg &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
8252 BNX2_WR(bp, PCI_COMMAND, reg);
8253 } else if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) &&
8254 !(bp->flags & BNX2_FLAG_PCIX)) {
8255
8256 dev_err(&pdev->dev,
8257 "5706 A1 can only be used in a PCIX bus, aborting\n");
8258 goto err_out_unmap;
8259 }
8260
8261 bnx2_init_nvram(bp);
8262
8263 reg = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_SIGNATURE);
8264
8265 if (bnx2_reg_rd_ind(bp, BNX2_MCP_TOE_ID) & BNX2_MCP_TOE_ID_FUNCTION_ID)
8266 bp->func = 1;
8267
8268 if ((reg & BNX2_SHM_HDR_SIGNATURE_SIG_MASK) ==
8269 BNX2_SHM_HDR_SIGNATURE_SIG) {
8270 u32 off = bp->func << 2;
8271
8272 bp->shmem_base = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_ADDR_0 + off);
8273 } else
8274 bp->shmem_base = HOST_VIEW_SHMEM_BASE;
8275
8276 /* Get the permanent MAC address. First we need to make sure the
8277 * firmware is actually running.
8278 */
8279 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE);
8280
8281 if ((reg & BNX2_DEV_INFO_SIGNATURE_MAGIC_MASK) !=
8282 BNX2_DEV_INFO_SIGNATURE_MAGIC) {
8283 dev_err(&pdev->dev, "Firmware not running, aborting\n");
8284 rc = -ENODEV;
8285 goto err_out_unmap;
8286 }
8287
8288 bnx2_read_vpd_fw_ver(bp);
8289
8290 j = strlen(bp->fw_version);
8291 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_BC_REV);
8292 for (i = 0; i < 3 && j < 24; i++) {
8293 u8 num, k, skip0;
8294
8295 if (i == 0) {
8296 bp->fw_version[j++] = 'b';
8297 bp->fw_version[j++] = 'c';
8298 bp->fw_version[j++] = ' ';
8299 }
8300 num = (u8) (reg >> (24 - (i * 8)));
8301 for (k = 100, skip0 = 1; k >= 1; num %= k, k /= 10) {
8302 if (num >= k || !skip0 || k == 1) {
8303 bp->fw_version[j++] = (num / k) + '0';
8304 skip0 = 0;
8305 }
8306 }
8307 if (i != 2)
8308 bp->fw_version[j++] = '.';
8309 }
8310 reg = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);
8311 if (reg & BNX2_PORT_FEATURE_WOL_ENABLED)
8312 bp->wol = 1;
8313
8314 if (reg & BNX2_PORT_FEATURE_ASF_ENABLED) {
8315 bp->flags |= BNX2_FLAG_ASF_ENABLE;
8316
8317 for (i = 0; i < 30; i++) {
8318 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
8319 if (reg & BNX2_CONDITION_MFW_RUN_MASK)
8320 break;
8321 msleep(10);
8322 }
8323 }
8324 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
8325 reg &= BNX2_CONDITION_MFW_RUN_MASK;
8326 if (reg != BNX2_CONDITION_MFW_RUN_UNKNOWN &&
8327 reg != BNX2_CONDITION_MFW_RUN_NONE) {
8328 u32 addr = bnx2_shmem_rd(bp, BNX2_MFW_VER_PTR);
8329
8330 if (j < 32)
8331 bp->fw_version[j++] = ' ';
8332 for (i = 0; i < 3 && j < 28; i++) {
8333 reg = bnx2_reg_rd_ind(bp, addr + i * 4);
8334 reg = be32_to_cpu(reg);
8335 memcpy(&bp->fw_version[j], &reg, 4);
8336 j += 4;
8337 }
8338 }
8339
8340 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_UPPER);
8341 bp->mac_addr[0] = (u8) (reg >> 8);
8342 bp->mac_addr[1] = (u8) reg;
8343
8344 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_LOWER);
8345 bp->mac_addr[2] = (u8) (reg >> 24);
8346 bp->mac_addr[3] = (u8) (reg >> 16);
8347 bp->mac_addr[4] = (u8) (reg >> 8);
8348 bp->mac_addr[5] = (u8) reg;
8349
8350 bp->tx_ring_size = BNX2_MAX_TX_DESC_CNT;
8351 bnx2_set_rx_ring_size(bp, 255);
8352
8353 bp->tx_quick_cons_trip_int = 2;
8354 bp->tx_quick_cons_trip = 20;
8355 bp->tx_ticks_int = 18;
8356 bp->tx_ticks = 80;
8357
8358 bp->rx_quick_cons_trip_int = 2;
8359 bp->rx_quick_cons_trip = 12;
8360 bp->rx_ticks_int = 18;
8361 bp->rx_ticks = 18;
8362
8363 bp->stats_ticks = USEC_PER_SEC & BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
8364
8365 bp->current_interval = BNX2_TIMER_INTERVAL;
8366
8367 bp->phy_addr = 1;
8368
8369 /* allocate stats_blk */
8370 rc = bnx2_alloc_stats_blk(dev);
8371 if (rc)
8372 goto err_out_unmap;
8373
8374 /* Disable WOL support if we are running on a SERDES chip. */
8375 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
8376 bnx2_get_5709_media(bp);
8377 else if (BNX2_CHIP_BOND(bp) & BNX2_CHIP_BOND_SERDES_BIT)
8378 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
8379
8380 bp->phy_port = PORT_TP;
8381 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
8382 bp->phy_port = PORT_FIBRE;
8383 reg = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
8384 if (!(reg & BNX2_SHARED_HW_CFG_GIG_LINK_ON_VAUX)) {
8385 bp->flags |= BNX2_FLAG_NO_WOL;
8386 bp->wol = 0;
8387 }
8388 if (BNX2_CHIP(bp) == BNX2_CHIP_5706) {
8389 /* Don't do parallel detect on this board because of
8390 * some board problems. The link will not go down
8391 * if we do parallel detect.
8392 */
8393 if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
8394 pdev->subsystem_device == 0x310c)
8395 bp->phy_flags |= BNX2_PHY_FLAG_NO_PARALLEL;
8396 } else {
8397 bp->phy_addr = 2;
8398 if (reg & BNX2_SHARED_HW_CFG_PHY_2_5G)
8399 bp->phy_flags |= BNX2_PHY_FLAG_2_5G_CAPABLE;
8400 }
8401 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5706 ||
8402 BNX2_CHIP(bp) == BNX2_CHIP_5708)
8403 bp->phy_flags |= BNX2_PHY_FLAG_CRC_FIX;
8404 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&
8405 (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax ||
8406 BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Bx))
8407 bp->phy_flags |= BNX2_PHY_FLAG_DIS_EARLY_DAC;
8408
8409 bnx2_init_fw_cap(bp);
8410
8411 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||
8412 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||
8413 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1) ||
8414 !(BNX2_RD(bp, BNX2_PCI_CONFIG_3) & BNX2_PCI_CONFIG_3_VAUX_PRESET)) {
8415 bp->flags |= BNX2_FLAG_NO_WOL;
8416 bp->wol = 0;
8417 }
8418
8419 if (bp->flags & BNX2_FLAG_NO_WOL)
8420 device_set_wakeup_capable(&bp->pdev->dev, false);
8421 else
8422 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);
8423
8424 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
8425 bp->tx_quick_cons_trip_int =
8426 bp->tx_quick_cons_trip;
8427 bp->tx_ticks_int = bp->tx_ticks;
8428 bp->rx_quick_cons_trip_int =
8429 bp->rx_quick_cons_trip;
8430 bp->rx_ticks_int = bp->rx_ticks;
8431 bp->comp_prod_trip_int = bp->comp_prod_trip;
8432 bp->com_ticks_int = bp->com_ticks;
8433 bp->cmd_ticks_int = bp->cmd_ticks;
8434 }
8435
8436 /* Disable MSI on 5706 if AMD 8132 bridge is found.
8437 *
8438 * MSI is defined to be 32-bit write. The 5706 does 64-bit MSI writes
8439 * with byte enables disabled on the unused 32-bit word. This is legal
8440 * but causes problems on the AMD 8132 which will eventually stop
8441 * responding after a while.
8442 *
8443 * AMD believes this incompatibility is unique to the 5706, and
8444 * prefers to locally disable MSI rather than globally disabling it.
8445 */
8446 if (BNX2_CHIP(bp) == BNX2_CHIP_5706 && disable_msi == 0) {
8447 struct pci_dev *amd_8132 = NULL;
8448
8449 while ((amd_8132 = pci_get_device(PCI_VENDOR_ID_AMD,
8450 PCI_DEVICE_ID_AMD_8132_BRIDGE,
8451 amd_8132))) {
8452
8453 if (amd_8132->revision >= 0x10 &&
8454 amd_8132->revision <= 0x13) {
8455 disable_msi = 1;
8456 pci_dev_put(amd_8132);
8457 break;
8458 }
8459 }
8460 }
8461
8462 bnx2_set_default_link(bp);
8463 bp->req_flow_ctrl = FLOW_CTRL_RX | FLOW_CTRL_TX;
8464
8465 timer_setup(&bp->timer, bnx2_timer, 0);
8466 bp->timer.expires = RUN_AT(BNX2_TIMER_INTERVAL);
8467
8468 #ifdef BCM_CNIC
8469 if (bnx2_shmem_rd(bp, BNX2_ISCSI_INITIATOR) & BNX2_ISCSI_INITIATOR_EN)
8470 bp->cnic_eth_dev.max_iscsi_conn =
8471 (bnx2_shmem_rd(bp, BNX2_ISCSI_MAX_CONN) &
8472 BNX2_ISCSI_MAX_CONN_MASK) >> BNX2_ISCSI_MAX_CONN_SHIFT;
8473 bp->cnic_probe = bnx2_cnic_probe;
8474 #endif
8475 pci_save_state(pdev);
8476
8477 return 0;
8478
8479 err_out_unmap:
8480 if (bp->flags & BNX2_FLAG_AER_ENABLED) {
8481 pci_disable_pcie_error_reporting(pdev);
8482 bp->flags &= ~BNX2_FLAG_AER_ENABLED;
8483 }
8484
8485 pci_iounmap(pdev, bp->regview);
8486 bp->regview = NULL;
8487
8488 err_out_release:
8489 pci_release_regions(pdev);
8490
8491 err_out_disable:
8492 pci_disable_device(pdev);
8493
8494 err_out:
8495 kfree(bp->temp_stats_blk);
8496
8497 return rc;
8498 }
8499
8500 static char *
8501 bnx2_bus_string(struct bnx2 *bp, char *str)
8502 {
8503 char *s = str;
8504
8505 if (bp->flags & BNX2_FLAG_PCIE) {
8506 s += sprintf(s, "PCI Express");
8507 } else {
8508 s += sprintf(s, "PCI");
8509 if (bp->flags & BNX2_FLAG_PCIX)
8510 s += sprintf(s, "-X");
8511 if (bp->flags & BNX2_FLAG_PCI_32BIT)
8512 s += sprintf(s, " 32-bit");
8513 else
8514 s += sprintf(s, " 64-bit");
8515 s += sprintf(s, " %dMHz", bp->bus_speed_mhz);
8516 }
8517 return str;
8518 }
8519
8520 static void
8521 bnx2_del_napi(struct bnx2 *bp)
8522 {
8523 int i;
8524
8525 for (i = 0; i < bp->irq_nvecs; i++)
8526 netif_napi_del(&bp->bnx2_napi[i].napi);
8527 }
8528
8529 static void
8530 bnx2_init_napi(struct bnx2 *bp)
8531 {
8532 int i;
8533
8534 for (i = 0; i < bp->irq_nvecs; i++) {
8535 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
8536 int (*poll)(struct napi_struct *, int);
8537
8538 if (i == 0)
8539 poll = bnx2_poll;
8540 else
8541 poll = bnx2_poll_msix;
8542
8543 netif_napi_add(bp->dev, &bp->bnx2_napi[i].napi, poll, 64);
8544 bnapi->bp = bp;
8545 }
8546 }
8547
8548 static const struct net_device_ops bnx2_netdev_ops = {
8549 .ndo_open = bnx2_open,
8550 .ndo_start_xmit = bnx2_start_xmit,
8551 .ndo_stop = bnx2_close,
8552 .ndo_get_stats64 = bnx2_get_stats64,
8553 .ndo_set_rx_mode = bnx2_set_rx_mode,
8554 .ndo_do_ioctl = bnx2_ioctl,
8555 .ndo_validate_addr = eth_validate_addr,
8556 .ndo_set_mac_address = bnx2_change_mac_addr,
8557 .ndo_change_mtu = bnx2_change_mtu,
8558 .ndo_set_features = bnx2_set_features,
8559 .ndo_tx_timeout = bnx2_tx_timeout,
8560 #ifdef CONFIG_NET_POLL_CONTROLLER
8561 .ndo_poll_controller = poll_bnx2,
8562 #endif
8563 };
8564
8565 static int
8566 bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
8567 {
8568 static int version_printed = 0;
8569 struct net_device *dev;
8570 struct bnx2 *bp;
8571 int rc;
8572 char str[40];
8573
8574 if (version_printed++ == 0)
8575 pr_info("%s", version);
8576
8577 /* dev zeroed in init_etherdev */
8578 dev = alloc_etherdev_mq(sizeof(*bp), TX_MAX_RINGS);
8579 if (!dev)
8580 return -ENOMEM;
8581
8582 rc = bnx2_init_board(pdev, dev);
8583 if (rc < 0)
8584 goto err_free;
8585
8586 dev->netdev_ops = &bnx2_netdev_ops;
8587 dev->watchdog_timeo = TX_TIMEOUT;
8588 dev->ethtool_ops = &bnx2_ethtool_ops;
8589
8590 bp = netdev_priv(dev);
8591
8592 pci_set_drvdata(pdev, dev);
8593
8594 /*
8595 * In-flight DMA from 1st kernel could continue going in kdump kernel.
8596 * New io-page table has been created before bnx2 does reset at open stage.
8597 * We have to wait for the in-flight DMA to complete to avoid it look up
8598 * into the newly created io-page table.
8599 */
8600 if (is_kdump_kernel())
8601 bnx2_wait_dma_complete(bp);
8602
8603 memcpy(dev->dev_addr, bp->mac_addr, ETH_ALEN);
8604
8605 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
8606 NETIF_F_TSO | NETIF_F_TSO_ECN |
8607 NETIF_F_RXHASH | NETIF_F_RXCSUM;
8608
8609 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
8610 dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
8611
8612 dev->vlan_features = dev->hw_features;
8613 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
8614 dev->features |= dev->hw_features;
8615 dev->priv_flags |= IFF_UNICAST_FLT;
8616 dev->min_mtu = MIN_ETHERNET_PACKET_SIZE;
8617 dev->max_mtu = MAX_ETHERNET_JUMBO_PACKET_SIZE;
8618
8619 if (!(bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
8620 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
8621
8622 if ((rc = register_netdev(dev))) {
8623 dev_err(&pdev->dev, "Cannot register net device\n");
8624 goto error;
8625 }
8626
8627 netdev_info(dev, "%s (%c%d) %s found at mem %lx, IRQ %d, "
8628 "node addr %pM\n", board_info[ent->driver_data].name,
8629 ((BNX2_CHIP_ID(bp) & 0xf000) >> 12) + 'A',
8630 ((BNX2_CHIP_ID(bp) & 0x0ff0) >> 4),
8631 bnx2_bus_string(bp, str), (long)pci_resource_start(pdev, 0),
8632 pdev->irq, dev->dev_addr);
8633
8634 return 0;
8635
8636 error:
8637 pci_iounmap(pdev, bp->regview);
8638 pci_release_regions(pdev);
8639 pci_disable_device(pdev);
8640 err_free:
8641 bnx2_free_stats_blk(dev);
8642 free_netdev(dev);
8643 return rc;
8644 }
8645
8646 static void
8647 bnx2_remove_one(struct pci_dev *pdev)
8648 {
8649 struct net_device *dev = pci_get_drvdata(pdev);
8650 struct bnx2 *bp = netdev_priv(dev);
8651
8652 unregister_netdev(dev);
8653
8654 del_timer_sync(&bp->timer);
8655 cancel_work_sync(&bp->reset_task);
8656
8657 pci_iounmap(bp->pdev, bp->regview);
8658
8659 bnx2_free_stats_blk(dev);
8660 kfree(bp->temp_stats_blk);
8661
8662 if (bp->flags & BNX2_FLAG_AER_ENABLED) {
8663 pci_disable_pcie_error_reporting(pdev);
8664 bp->flags &= ~BNX2_FLAG_AER_ENABLED;
8665 }
8666
8667 bnx2_release_firmware(bp);
8668
8669 free_netdev(dev);
8670
8671 pci_release_regions(pdev);
8672 pci_disable_device(pdev);
8673 }
8674
8675 #ifdef CONFIG_PM_SLEEP
8676 static int
8677 bnx2_suspend(struct device *device)
8678 {
8679 struct pci_dev *pdev = to_pci_dev(device);
8680 struct net_device *dev = pci_get_drvdata(pdev);
8681 struct bnx2 *bp = netdev_priv(dev);
8682
8683 if (netif_running(dev)) {
8684 cancel_work_sync(&bp->reset_task);
8685 bnx2_netif_stop(bp, true);
8686 netif_device_detach(dev);
8687 del_timer_sync(&bp->timer);
8688 bnx2_shutdown_chip(bp);
8689 __bnx2_free_irq(bp);
8690 bnx2_free_skbs(bp);
8691 }
8692 bnx2_setup_wol(bp);
8693 return 0;
8694 }
8695
8696 static int
8697 bnx2_resume(struct device *device)
8698 {
8699 struct pci_dev *pdev = to_pci_dev(device);
8700 struct net_device *dev = pci_get_drvdata(pdev);
8701 struct bnx2 *bp = netdev_priv(dev);
8702
8703 if (!netif_running(dev))
8704 return 0;
8705
8706 bnx2_set_power_state(bp, PCI_D0);
8707 netif_device_attach(dev);
8708 bnx2_request_irq(bp);
8709 bnx2_init_nic(bp, 1);
8710 bnx2_netif_start(bp, true);
8711 return 0;
8712 }
8713
8714 static SIMPLE_DEV_PM_OPS(bnx2_pm_ops, bnx2_suspend, bnx2_resume);
8715 #define BNX2_PM_OPS (&bnx2_pm_ops)
8716
8717 #else
8718
8719 #define BNX2_PM_OPS NULL
8720
8721 #endif /* CONFIG_PM_SLEEP */
8722 /**
8723 * bnx2_io_error_detected - called when PCI error is detected
8724 * @pdev: Pointer to PCI device
8725 * @state: The current pci connection state
8726 *
8727 * This function is called after a PCI bus error affecting
8728 * this device has been detected.
8729 */
8730 static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
8731 pci_channel_state_t state)
8732 {
8733 struct net_device *dev = pci_get_drvdata(pdev);
8734 struct bnx2 *bp = netdev_priv(dev);
8735
8736 rtnl_lock();
8737 netif_device_detach(dev);
8738
8739 if (state == pci_channel_io_perm_failure) {
8740 rtnl_unlock();
8741 return PCI_ERS_RESULT_DISCONNECT;
8742 }
8743
8744 if (netif_running(dev)) {
8745 bnx2_netif_stop(bp, true);
8746 del_timer_sync(&bp->timer);
8747 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
8748 }
8749
8750 pci_disable_device(pdev);
8751 rtnl_unlock();
8752
8753 /* Request a slot slot reset. */
8754 return PCI_ERS_RESULT_NEED_RESET;
8755 }
8756
8757 /**
8758 * bnx2_io_slot_reset - called after the pci bus has been reset.
8759 * @pdev: Pointer to PCI device
8760 *
8761 * Restart the card from scratch, as if from a cold-boot.
8762 */
8763 static pci_ers_result_t bnx2_io_slot_reset(struct pci_dev *pdev)
8764 {
8765 struct net_device *dev = pci_get_drvdata(pdev);
8766 struct bnx2 *bp = netdev_priv(dev);
8767 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
8768 int err = 0;
8769
8770 rtnl_lock();
8771 if (pci_enable_device(pdev)) {
8772 dev_err(&pdev->dev,
8773 "Cannot re-enable PCI device after reset\n");
8774 } else {
8775 pci_set_master(pdev);
8776 pci_restore_state(pdev);
8777 pci_save_state(pdev);
8778
8779 if (netif_running(dev))
8780 err = bnx2_init_nic(bp, 1);
8781
8782 if (!err)
8783 result = PCI_ERS_RESULT_RECOVERED;
8784 }
8785
8786 if (result != PCI_ERS_RESULT_RECOVERED && netif_running(dev)) {
8787 bnx2_napi_enable(bp);
8788 dev_close(dev);
8789 }
8790 rtnl_unlock();
8791
8792 if (!(bp->flags & BNX2_FLAG_AER_ENABLED))
8793 return result;
8794
8795 err = pci_cleanup_aer_uncorrect_error_status(pdev);
8796 if (err) {
8797 dev_err(&pdev->dev,
8798 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
8799 err); /* non-fatal, continue */
8800 }
8801
8802 return result;
8803 }
8804
8805 /**
8806 * bnx2_io_resume - called when traffic can start flowing again.
8807 * @pdev: Pointer to PCI device
8808 *
8809 * This callback is called when the error recovery driver tells us that
8810 * its OK to resume normal operation.
8811 */
8812 static void bnx2_io_resume(struct pci_dev *pdev)
8813 {
8814 struct net_device *dev = pci_get_drvdata(pdev);
8815 struct bnx2 *bp = netdev_priv(dev);
8816
8817 rtnl_lock();
8818 if (netif_running(dev))
8819 bnx2_netif_start(bp, true);
8820
8821 netif_device_attach(dev);
8822 rtnl_unlock();
8823 }
8824
8825 static void bnx2_shutdown(struct pci_dev *pdev)
8826 {
8827 struct net_device *dev = pci_get_drvdata(pdev);
8828 struct bnx2 *bp;
8829
8830 if (!dev)
8831 return;
8832
8833 bp = netdev_priv(dev);
8834 if (!bp)
8835 return;
8836
8837 rtnl_lock();
8838 if (netif_running(dev))
8839 dev_close(bp->dev);
8840
8841 if (system_state == SYSTEM_POWER_OFF)
8842 bnx2_set_power_state(bp, PCI_D3hot);
8843
8844 rtnl_unlock();
8845 }
8846
8847 static const struct pci_error_handlers bnx2_err_handler = {
8848 .error_detected = bnx2_io_error_detected,
8849 .slot_reset = bnx2_io_slot_reset,
8850 .resume = bnx2_io_resume,
8851 };
8852
8853 static struct pci_driver bnx2_pci_driver = {
8854 .name = DRV_MODULE_NAME,
8855 .id_table = bnx2_pci_tbl,
8856 .probe = bnx2_init_one,
8857 .remove = bnx2_remove_one,
8858 .driver.pm = BNX2_PM_OPS,
8859 .err_handler = &bnx2_err_handler,
8860 .shutdown = bnx2_shutdown,
8861 };
8862
8863 module_pci_driver(bnx2_pci_driver);
Linux with added FPC-III support