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[mirror_ubuntu-disco-kernel.git] / drivers / net / ethernet / broadcom / bnx2.c
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, 0444);
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)
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)
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)
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(array_size(SW_RXBD_RING_SIZE, bp->rx_max_ring));
782 if (!rxr->rx_buf_ring)
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])
792 return -ENOMEM;
793
794 }
795
796 if (bp->rx_pg_ring_size) {
797 rxr->rx_pg_ring =
798 vzalloc(array_size(SW_RXPG_RING_SIZE,
799 bp->rx_max_pg_ring));
800 if (!rxr->rx_pg_ring)
801 return -ENOMEM;
802
803 }
804
805 for (j = 0; j < bp->rx_max_pg_ring; j++) {
806 rxr->rx_pg_desc_ring[j] =
807 dma_alloc_coherent(&bp->pdev->dev,
808 RXBD_RING_SIZE,
809 &rxr->rx_pg_desc_mapping[j],
810 GFP_KERNEL);
811 if (!rxr->rx_pg_desc_ring[j])
812 return -ENOMEM;
813
814 }
815 }
816 return 0;
817 }
818
819 static void
820 bnx2_free_stats_blk(struct net_device *dev)
821 {
822 struct bnx2 *bp = netdev_priv(dev);
823
824 if (bp->status_blk) {
825 dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
826 bp->status_blk,
827 bp->status_blk_mapping);
828 bp->status_blk = NULL;
829 bp->stats_blk = NULL;
830 }
831 }
832
833 static int
834 bnx2_alloc_stats_blk(struct net_device *dev)
835 {
836 int status_blk_size;
837 void *status_blk;
838 struct bnx2 *bp = netdev_priv(dev);
839
840 /* Combine status and statistics blocks into one allocation. */
841 status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));
842 if (bp->flags & BNX2_FLAG_MSIX_CAP)
843 status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *
844 BNX2_SBLK_MSIX_ALIGN_SIZE);
845 bp->status_stats_size = status_blk_size +
846 sizeof(struct statistics_block);
847 status_blk = dma_zalloc_coherent(&bp->pdev->dev, bp->status_stats_size,
848 &bp->status_blk_mapping, GFP_KERNEL);
849 if (!status_blk)
850 return -ENOMEM;
851
852 bp->status_blk = status_blk;
853 bp->stats_blk = status_blk + status_blk_size;
854 bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;
855
856 return 0;
857 }
858
859 static void
860 bnx2_free_mem(struct bnx2 *bp)
861 {
862 int i;
863 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
864
865 bnx2_free_tx_mem(bp);
866 bnx2_free_rx_mem(bp);
867
868 for (i = 0; i < bp->ctx_pages; i++) {
869 if (bp->ctx_blk[i]) {
870 dma_free_coherent(&bp->pdev->dev, BNX2_PAGE_SIZE,
871 bp->ctx_blk[i],
872 bp->ctx_blk_mapping[i]);
873 bp->ctx_blk[i] = NULL;
874 }
875 }
876
877 if (bnapi->status_blk.msi)
878 bnapi->status_blk.msi = NULL;
879 }
880
881 static int
882 bnx2_alloc_mem(struct bnx2 *bp)
883 {
884 int i, err;
885 struct bnx2_napi *bnapi;
886
887 bnapi = &bp->bnx2_napi[0];
888 bnapi->status_blk.msi = bp->status_blk;
889 bnapi->hw_tx_cons_ptr =
890 &bnapi->status_blk.msi->status_tx_quick_consumer_index0;
891 bnapi->hw_rx_cons_ptr =
892 &bnapi->status_blk.msi->status_rx_quick_consumer_index0;
893 if (bp->flags & BNX2_FLAG_MSIX_CAP) {
894 for (i = 1; i < bp->irq_nvecs; i++) {
895 struct status_block_msix *sblk;
896
897 bnapi = &bp->bnx2_napi[i];
898
899 sblk = (bp->status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);
900 bnapi->status_blk.msix = sblk;
901 bnapi->hw_tx_cons_ptr =
902 &sblk->status_tx_quick_consumer_index;
903 bnapi->hw_rx_cons_ptr =
904 &sblk->status_rx_quick_consumer_index;
905 bnapi->int_num = i << 24;
906 }
907 }
908
909 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
910 bp->ctx_pages = 0x2000 / BNX2_PAGE_SIZE;
911 if (bp->ctx_pages == 0)
912 bp->ctx_pages = 1;
913 for (i = 0; i < bp->ctx_pages; i++) {
914 bp->ctx_blk[i] = dma_alloc_coherent(&bp->pdev->dev,
915 BNX2_PAGE_SIZE,
916 &bp->ctx_blk_mapping[i],
917 GFP_KERNEL);
918 if (!bp->ctx_blk[i])
919 goto alloc_mem_err;
920 }
921 }
922
923 err = bnx2_alloc_rx_mem(bp);
924 if (err)
925 goto alloc_mem_err;
926
927 err = bnx2_alloc_tx_mem(bp);
928 if (err)
929 goto alloc_mem_err;
930
931 return 0;
932
933 alloc_mem_err:
934 bnx2_free_mem(bp);
935 return -ENOMEM;
936 }
937
938 static void
939 bnx2_report_fw_link(struct bnx2 *bp)
940 {
941 u32 fw_link_status = 0;
942
943 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
944 return;
945
946 if (bp->link_up) {
947 u32 bmsr;
948
949 switch (bp->line_speed) {
950 case SPEED_10:
951 if (bp->duplex == DUPLEX_HALF)
952 fw_link_status = BNX2_LINK_STATUS_10HALF;
953 else
954 fw_link_status = BNX2_LINK_STATUS_10FULL;
955 break;
956 case SPEED_100:
957 if (bp->duplex == DUPLEX_HALF)
958 fw_link_status = BNX2_LINK_STATUS_100HALF;
959 else
960 fw_link_status = BNX2_LINK_STATUS_100FULL;
961 break;
962 case SPEED_1000:
963 if (bp->duplex == DUPLEX_HALF)
964 fw_link_status = BNX2_LINK_STATUS_1000HALF;
965 else
966 fw_link_status = BNX2_LINK_STATUS_1000FULL;
967 break;
968 case SPEED_2500:
969 if (bp->duplex == DUPLEX_HALF)
970 fw_link_status = BNX2_LINK_STATUS_2500HALF;
971 else
972 fw_link_status = BNX2_LINK_STATUS_2500FULL;
973 break;
974 }
975
976 fw_link_status |= BNX2_LINK_STATUS_LINK_UP;
977
978 if (bp->autoneg) {
979 fw_link_status |= BNX2_LINK_STATUS_AN_ENABLED;
980
981 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
982 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
983
984 if (!(bmsr & BMSR_ANEGCOMPLETE) ||
985 bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)
986 fw_link_status |= BNX2_LINK_STATUS_PARALLEL_DET;
987 else
988 fw_link_status |= BNX2_LINK_STATUS_AN_COMPLETE;
989 }
990 }
991 else
992 fw_link_status = BNX2_LINK_STATUS_LINK_DOWN;
993
994 bnx2_shmem_wr(bp, BNX2_LINK_STATUS, fw_link_status);
995 }
996
997 static char *
998 bnx2_xceiver_str(struct bnx2 *bp)
999 {
1000 return (bp->phy_port == PORT_FIBRE) ? "SerDes" :
1001 ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) ? "Remote Copper" :
1002 "Copper");
1003 }
1004
1005 static void
1006 bnx2_report_link(struct bnx2 *bp)
1007 {
1008 if (bp->link_up) {
1009 netif_carrier_on(bp->dev);
1010 netdev_info(bp->dev, "NIC %s Link is Up, %d Mbps %s duplex",
1011 bnx2_xceiver_str(bp),
1012 bp->line_speed,
1013 bp->duplex == DUPLEX_FULL ? "full" : "half");
1014
1015 if (bp->flow_ctrl) {
1016 if (bp->flow_ctrl & FLOW_CTRL_RX) {
1017 pr_cont(", receive ");
1018 if (bp->flow_ctrl & FLOW_CTRL_TX)
1019 pr_cont("& transmit ");
1020 }
1021 else {
1022 pr_cont(", transmit ");
1023 }
1024 pr_cont("flow control ON");
1025 }
1026 pr_cont("\n");
1027 } else {
1028 netif_carrier_off(bp->dev);
1029 netdev_err(bp->dev, "NIC %s Link is Down\n",
1030 bnx2_xceiver_str(bp));
1031 }
1032
1033 bnx2_report_fw_link(bp);
1034 }
1035
1036 static void
1037 bnx2_resolve_flow_ctrl(struct bnx2 *bp)
1038 {
1039 u32 local_adv, remote_adv;
1040
1041 bp->flow_ctrl = 0;
1042 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
1043 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
1044
1045 if (bp->duplex == DUPLEX_FULL) {
1046 bp->flow_ctrl = bp->req_flow_ctrl;
1047 }
1048 return;
1049 }
1050
1051 if (bp->duplex != DUPLEX_FULL) {
1052 return;
1053 }
1054
1055 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1056 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {
1057 u32 val;
1058
1059 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
1060 if (val & BCM5708S_1000X_STAT1_TX_PAUSE)
1061 bp->flow_ctrl |= FLOW_CTRL_TX;
1062 if (val & BCM5708S_1000X_STAT1_RX_PAUSE)
1063 bp->flow_ctrl |= FLOW_CTRL_RX;
1064 return;
1065 }
1066
1067 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1068 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1069
1070 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1071 u32 new_local_adv = 0;
1072 u32 new_remote_adv = 0;
1073
1074 if (local_adv & ADVERTISE_1000XPAUSE)
1075 new_local_adv |= ADVERTISE_PAUSE_CAP;
1076 if (local_adv & ADVERTISE_1000XPSE_ASYM)
1077 new_local_adv |= ADVERTISE_PAUSE_ASYM;
1078 if (remote_adv & ADVERTISE_1000XPAUSE)
1079 new_remote_adv |= ADVERTISE_PAUSE_CAP;
1080 if (remote_adv & ADVERTISE_1000XPSE_ASYM)
1081 new_remote_adv |= ADVERTISE_PAUSE_ASYM;
1082
1083 local_adv = new_local_adv;
1084 remote_adv = new_remote_adv;
1085 }
1086
1087 /* See Table 28B-3 of 802.3ab-1999 spec. */
1088 if (local_adv & ADVERTISE_PAUSE_CAP) {
1089 if(local_adv & ADVERTISE_PAUSE_ASYM) {
1090 if (remote_adv & ADVERTISE_PAUSE_CAP) {
1091 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
1092 }
1093 else if (remote_adv & ADVERTISE_PAUSE_ASYM) {
1094 bp->flow_ctrl = FLOW_CTRL_RX;
1095 }
1096 }
1097 else {
1098 if (remote_adv & ADVERTISE_PAUSE_CAP) {
1099 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
1100 }
1101 }
1102 }
1103 else if (local_adv & ADVERTISE_PAUSE_ASYM) {
1104 if ((remote_adv & ADVERTISE_PAUSE_CAP) &&
1105 (remote_adv & ADVERTISE_PAUSE_ASYM)) {
1106
1107 bp->flow_ctrl = FLOW_CTRL_TX;
1108 }
1109 }
1110 }
1111
1112 static int
1113 bnx2_5709s_linkup(struct bnx2 *bp)
1114 {
1115 u32 val, speed;
1116
1117 bp->link_up = 1;
1118
1119 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_GP_STATUS);
1120 bnx2_read_phy(bp, MII_BNX2_GP_TOP_AN_STATUS1, &val);
1121 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1122
1123 if ((bp->autoneg & AUTONEG_SPEED) == 0) {
1124 bp->line_speed = bp->req_line_speed;
1125 bp->duplex = bp->req_duplex;
1126 return 0;
1127 }
1128 speed = val & MII_BNX2_GP_TOP_AN_SPEED_MSK;
1129 switch (speed) {
1130 case MII_BNX2_GP_TOP_AN_SPEED_10:
1131 bp->line_speed = SPEED_10;
1132 break;
1133 case MII_BNX2_GP_TOP_AN_SPEED_100:
1134 bp->line_speed = SPEED_100;
1135 break;
1136 case MII_BNX2_GP_TOP_AN_SPEED_1G:
1137 case MII_BNX2_GP_TOP_AN_SPEED_1GKV:
1138 bp->line_speed = SPEED_1000;
1139 break;
1140 case MII_BNX2_GP_TOP_AN_SPEED_2_5G:
1141 bp->line_speed = SPEED_2500;
1142 break;
1143 }
1144 if (val & MII_BNX2_GP_TOP_AN_FD)
1145 bp->duplex = DUPLEX_FULL;
1146 else
1147 bp->duplex = DUPLEX_HALF;
1148 return 0;
1149 }
1150
1151 static int
1152 bnx2_5708s_linkup(struct bnx2 *bp)
1153 {
1154 u32 val;
1155
1156 bp->link_up = 1;
1157 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
1158 switch (val & BCM5708S_1000X_STAT1_SPEED_MASK) {
1159 case BCM5708S_1000X_STAT1_SPEED_10:
1160 bp->line_speed = SPEED_10;
1161 break;
1162 case BCM5708S_1000X_STAT1_SPEED_100:
1163 bp->line_speed = SPEED_100;
1164 break;
1165 case BCM5708S_1000X_STAT1_SPEED_1G:
1166 bp->line_speed = SPEED_1000;
1167 break;
1168 case BCM5708S_1000X_STAT1_SPEED_2G5:
1169 bp->line_speed = SPEED_2500;
1170 break;
1171 }
1172 if (val & BCM5708S_1000X_STAT1_FD)
1173 bp->duplex = DUPLEX_FULL;
1174 else
1175 bp->duplex = DUPLEX_HALF;
1176
1177 return 0;
1178 }
1179
1180 static int
1181 bnx2_5706s_linkup(struct bnx2 *bp)
1182 {
1183 u32 bmcr, local_adv, remote_adv, common;
1184
1185 bp->link_up = 1;
1186 bp->line_speed = SPEED_1000;
1187
1188 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1189 if (bmcr & BMCR_FULLDPLX) {
1190 bp->duplex = DUPLEX_FULL;
1191 }
1192 else {
1193 bp->duplex = DUPLEX_HALF;
1194 }
1195
1196 if (!(bmcr & BMCR_ANENABLE)) {
1197 return 0;
1198 }
1199
1200 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1201 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1202
1203 common = local_adv & remote_adv;
1204 if (common & (ADVERTISE_1000XHALF | ADVERTISE_1000XFULL)) {
1205
1206 if (common & ADVERTISE_1000XFULL) {
1207 bp->duplex = DUPLEX_FULL;
1208 }
1209 else {
1210 bp->duplex = DUPLEX_HALF;
1211 }
1212 }
1213
1214 return 0;
1215 }
1216
1217 static int
1218 bnx2_copper_linkup(struct bnx2 *bp)
1219 {
1220 u32 bmcr;
1221
1222 bp->phy_flags &= ~BNX2_PHY_FLAG_MDIX;
1223
1224 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1225 if (bmcr & BMCR_ANENABLE) {
1226 u32 local_adv, remote_adv, common;
1227
1228 bnx2_read_phy(bp, MII_CTRL1000, &local_adv);
1229 bnx2_read_phy(bp, MII_STAT1000, &remote_adv);
1230
1231 common = local_adv & (remote_adv >> 2);
1232 if (common & ADVERTISE_1000FULL) {
1233 bp->line_speed = SPEED_1000;
1234 bp->duplex = DUPLEX_FULL;
1235 }
1236 else if (common & ADVERTISE_1000HALF) {
1237 bp->line_speed = SPEED_1000;
1238 bp->duplex = DUPLEX_HALF;
1239 }
1240 else {
1241 bnx2_read_phy(bp, bp->mii_adv, &local_adv);
1242 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
1243
1244 common = local_adv & remote_adv;
1245 if (common & ADVERTISE_100FULL) {
1246 bp->line_speed = SPEED_100;
1247 bp->duplex = DUPLEX_FULL;
1248 }
1249 else if (common & ADVERTISE_100HALF) {
1250 bp->line_speed = SPEED_100;
1251 bp->duplex = DUPLEX_HALF;
1252 }
1253 else if (common & ADVERTISE_10FULL) {
1254 bp->line_speed = SPEED_10;
1255 bp->duplex = DUPLEX_FULL;
1256 }
1257 else if (common & ADVERTISE_10HALF) {
1258 bp->line_speed = SPEED_10;
1259 bp->duplex = DUPLEX_HALF;
1260 }
1261 else {
1262 bp->line_speed = 0;
1263 bp->link_up = 0;
1264 }
1265 }
1266 }
1267 else {
1268 if (bmcr & BMCR_SPEED100) {
1269 bp->line_speed = SPEED_100;
1270 }
1271 else {
1272 bp->line_speed = SPEED_10;
1273 }
1274 if (bmcr & BMCR_FULLDPLX) {
1275 bp->duplex = DUPLEX_FULL;
1276 }
1277 else {
1278 bp->duplex = DUPLEX_HALF;
1279 }
1280 }
1281
1282 if (bp->link_up) {
1283 u32 ext_status;
1284
1285 bnx2_read_phy(bp, MII_BNX2_EXT_STATUS, &ext_status);
1286 if (ext_status & EXT_STATUS_MDIX)
1287 bp->phy_flags |= BNX2_PHY_FLAG_MDIX;
1288 }
1289
1290 return 0;
1291 }
1292
1293 static void
1294 bnx2_init_rx_context(struct bnx2 *bp, u32 cid)
1295 {
1296 u32 val, rx_cid_addr = GET_CID_ADDR(cid);
1297
1298 val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE;
1299 val |= BNX2_L2CTX_CTX_TYPE_SIZE_L2;
1300 val |= 0x02 << 8;
1301
1302 if (bp->flow_ctrl & FLOW_CTRL_TX)
1303 val |= BNX2_L2CTX_FLOW_CTRL_ENABLE;
1304
1305 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_CTX_TYPE, val);
1306 }
1307
1308 static void
1309 bnx2_init_all_rx_contexts(struct bnx2 *bp)
1310 {
1311 int i;
1312 u32 cid;
1313
1314 for (i = 0, cid = RX_CID; i < bp->num_rx_rings; i++, cid++) {
1315 if (i == 1)
1316 cid = RX_RSS_CID;
1317 bnx2_init_rx_context(bp, cid);
1318 }
1319 }
1320
1321 static void
1322 bnx2_set_mac_link(struct bnx2 *bp)
1323 {
1324 u32 val;
1325
1326 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x2620);
1327 if (bp->link_up && (bp->line_speed == SPEED_1000) &&
1328 (bp->duplex == DUPLEX_HALF)) {
1329 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x26ff);
1330 }
1331
1332 /* Configure the EMAC mode register. */
1333 val = BNX2_RD(bp, BNX2_EMAC_MODE);
1334
1335 val &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
1336 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
1337 BNX2_EMAC_MODE_25G_MODE);
1338
1339 if (bp->link_up) {
1340 switch (bp->line_speed) {
1341 case SPEED_10:
1342 if (BNX2_CHIP(bp) != BNX2_CHIP_5706) {
1343 val |= BNX2_EMAC_MODE_PORT_MII_10M;
1344 break;
1345 }
1346 /* fall through */
1347 case SPEED_100:
1348 val |= BNX2_EMAC_MODE_PORT_MII;
1349 break;
1350 case SPEED_2500:
1351 val |= BNX2_EMAC_MODE_25G_MODE;
1352 /* fall through */
1353 case SPEED_1000:
1354 val |= BNX2_EMAC_MODE_PORT_GMII;
1355 break;
1356 }
1357 }
1358 else {
1359 val |= BNX2_EMAC_MODE_PORT_GMII;
1360 }
1361
1362 /* Set the MAC to operate in the appropriate duplex mode. */
1363 if (bp->duplex == DUPLEX_HALF)
1364 val |= BNX2_EMAC_MODE_HALF_DUPLEX;
1365 BNX2_WR(bp, BNX2_EMAC_MODE, val);
1366
1367 /* Enable/disable rx PAUSE. */
1368 bp->rx_mode &= ~BNX2_EMAC_RX_MODE_FLOW_EN;
1369
1370 if (bp->flow_ctrl & FLOW_CTRL_RX)
1371 bp->rx_mode |= BNX2_EMAC_RX_MODE_FLOW_EN;
1372 BNX2_WR(bp, BNX2_EMAC_RX_MODE, bp->rx_mode);
1373
1374 /* Enable/disable tx PAUSE. */
1375 val = BNX2_RD(bp, BNX2_EMAC_TX_MODE);
1376 val &= ~BNX2_EMAC_TX_MODE_FLOW_EN;
1377
1378 if (bp->flow_ctrl & FLOW_CTRL_TX)
1379 val |= BNX2_EMAC_TX_MODE_FLOW_EN;
1380 BNX2_WR(bp, BNX2_EMAC_TX_MODE, val);
1381
1382 /* Acknowledge the interrupt. */
1383 BNX2_WR(bp, BNX2_EMAC_STATUS, BNX2_EMAC_STATUS_LINK_CHANGE);
1384
1385 bnx2_init_all_rx_contexts(bp);
1386 }
1387
1388 static void
1389 bnx2_enable_bmsr1(struct bnx2 *bp)
1390 {
1391 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1392 (BNX2_CHIP(bp) == BNX2_CHIP_5709))
1393 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1394 MII_BNX2_BLK_ADDR_GP_STATUS);
1395 }
1396
1397 static void
1398 bnx2_disable_bmsr1(struct bnx2 *bp)
1399 {
1400 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1401 (BNX2_CHIP(bp) == BNX2_CHIP_5709))
1402 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1403 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1404 }
1405
1406 static int
1407 bnx2_test_and_enable_2g5(struct bnx2 *bp)
1408 {
1409 u32 up1;
1410 int ret = 1;
1411
1412 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1413 return 0;
1414
1415 if (bp->autoneg & AUTONEG_SPEED)
1416 bp->advertising |= ADVERTISED_2500baseX_Full;
1417
1418 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1419 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
1420
1421 bnx2_read_phy(bp, bp->mii_up1, &up1);
1422 if (!(up1 & BCM5708S_UP1_2G5)) {
1423 up1 |= BCM5708S_UP1_2G5;
1424 bnx2_write_phy(bp, bp->mii_up1, up1);
1425 ret = 0;
1426 }
1427
1428 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1429 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1430 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1431
1432 return ret;
1433 }
1434
1435 static int
1436 bnx2_test_and_disable_2g5(struct bnx2 *bp)
1437 {
1438 u32 up1;
1439 int ret = 0;
1440
1441 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1442 return 0;
1443
1444 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1445 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
1446
1447 bnx2_read_phy(bp, bp->mii_up1, &up1);
1448 if (up1 & BCM5708S_UP1_2G5) {
1449 up1 &= ~BCM5708S_UP1_2G5;
1450 bnx2_write_phy(bp, bp->mii_up1, up1);
1451 ret = 1;
1452 }
1453
1454 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1455 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1456 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1457
1458 return ret;
1459 }
1460
1461 static void
1462 bnx2_enable_forced_2g5(struct bnx2 *bp)
1463 {
1464 u32 uninitialized_var(bmcr);
1465 int err;
1466
1467 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1468 return;
1469
1470 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1471 u32 val;
1472
1473 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1474 MII_BNX2_BLK_ADDR_SERDES_DIG);
1475 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
1476 val &= ~MII_BNX2_SD_MISC1_FORCE_MSK;
1477 val |= MII_BNX2_SD_MISC1_FORCE |
1478 MII_BNX2_SD_MISC1_FORCE_2_5G;
1479 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
1480 }
1481
1482 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1483 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1484 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1485
1486 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1487 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1488 if (!err)
1489 bmcr |= BCM5708S_BMCR_FORCE_2500;
1490 } else {
1491 return;
1492 }
1493
1494 if (err)
1495 return;
1496
1497 if (bp->autoneg & AUTONEG_SPEED) {
1498 bmcr &= ~BMCR_ANENABLE;
1499 if (bp->req_duplex == DUPLEX_FULL)
1500 bmcr |= BMCR_FULLDPLX;
1501 }
1502 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1503 }
1504
1505 static void
1506 bnx2_disable_forced_2g5(struct bnx2 *bp)
1507 {
1508 u32 uninitialized_var(bmcr);
1509 int err;
1510
1511 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
1512 return;
1513
1514 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1515 u32 val;
1516
1517 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1518 MII_BNX2_BLK_ADDR_SERDES_DIG);
1519 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
1520 val &= ~MII_BNX2_SD_MISC1_FORCE;
1521 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
1522 }
1523
1524 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
1525 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
1526 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1527
1528 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1529 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1530 if (!err)
1531 bmcr &= ~BCM5708S_BMCR_FORCE_2500;
1532 } else {
1533 return;
1534 }
1535
1536 if (err)
1537 return;
1538
1539 if (bp->autoneg & AUTONEG_SPEED)
1540 bmcr |= BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_ANRESTART;
1541 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1542 }
1543
1544 static void
1545 bnx2_5706s_force_link_dn(struct bnx2 *bp, int start)
1546 {
1547 u32 val;
1548
1549 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_SERDES_CTL);
1550 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
1551 if (start)
1552 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val & 0xff0f);
1553 else
1554 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val | 0xc0);
1555 }
1556
1557 static int
1558 bnx2_set_link(struct bnx2 *bp)
1559 {
1560 u32 bmsr;
1561 u8 link_up;
1562
1563 if (bp->loopback == MAC_LOOPBACK || bp->loopback == PHY_LOOPBACK) {
1564 bp->link_up = 1;
1565 return 0;
1566 }
1567
1568 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
1569 return 0;
1570
1571 link_up = bp->link_up;
1572
1573 bnx2_enable_bmsr1(bp);
1574 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
1575 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
1576 bnx2_disable_bmsr1(bp);
1577
1578 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1579 (BNX2_CHIP(bp) == BNX2_CHIP_5706)) {
1580 u32 val, an_dbg;
1581
1582 if (bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN) {
1583 bnx2_5706s_force_link_dn(bp, 0);
1584 bp->phy_flags &= ~BNX2_PHY_FLAG_FORCED_DOWN;
1585 }
1586 val = BNX2_RD(bp, BNX2_EMAC_STATUS);
1587
1588 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
1589 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
1590 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
1591
1592 if ((val & BNX2_EMAC_STATUS_LINK) &&
1593 !(an_dbg & MISC_SHDW_AN_DBG_NOSYNC))
1594 bmsr |= BMSR_LSTATUS;
1595 else
1596 bmsr &= ~BMSR_LSTATUS;
1597 }
1598
1599 if (bmsr & BMSR_LSTATUS) {
1600 bp->link_up = 1;
1601
1602 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1603 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
1604 bnx2_5706s_linkup(bp);
1605 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
1606 bnx2_5708s_linkup(bp);
1607 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
1608 bnx2_5709s_linkup(bp);
1609 }
1610 else {
1611 bnx2_copper_linkup(bp);
1612 }
1613 bnx2_resolve_flow_ctrl(bp);
1614 }
1615 else {
1616 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
1617 (bp->autoneg & AUTONEG_SPEED))
1618 bnx2_disable_forced_2g5(bp);
1619
1620 if (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT) {
1621 u32 bmcr;
1622
1623 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1624 bmcr |= BMCR_ANENABLE;
1625 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
1626
1627 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
1628 }
1629 bp->link_up = 0;
1630 }
1631
1632 if (bp->link_up != link_up) {
1633 bnx2_report_link(bp);
1634 }
1635
1636 bnx2_set_mac_link(bp);
1637
1638 return 0;
1639 }
1640
1641 static int
1642 bnx2_reset_phy(struct bnx2 *bp)
1643 {
1644 int i;
1645 u32 reg;
1646
1647 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_RESET);
1648
1649 #define PHY_RESET_MAX_WAIT 100
1650 for (i = 0; i < PHY_RESET_MAX_WAIT; i++) {
1651 udelay(10);
1652
1653 bnx2_read_phy(bp, bp->mii_bmcr, &reg);
1654 if (!(reg & BMCR_RESET)) {
1655 udelay(20);
1656 break;
1657 }
1658 }
1659 if (i == PHY_RESET_MAX_WAIT) {
1660 return -EBUSY;
1661 }
1662 return 0;
1663 }
1664
1665 static u32
1666 bnx2_phy_get_pause_adv(struct bnx2 *bp)
1667 {
1668 u32 adv = 0;
1669
1670 if ((bp->req_flow_ctrl & (FLOW_CTRL_RX | FLOW_CTRL_TX)) ==
1671 (FLOW_CTRL_RX | FLOW_CTRL_TX)) {
1672
1673 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1674 adv = ADVERTISE_1000XPAUSE;
1675 }
1676 else {
1677 adv = ADVERTISE_PAUSE_CAP;
1678 }
1679 }
1680 else if (bp->req_flow_ctrl & FLOW_CTRL_TX) {
1681 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1682 adv = ADVERTISE_1000XPSE_ASYM;
1683 }
1684 else {
1685 adv = ADVERTISE_PAUSE_ASYM;
1686 }
1687 }
1688 else if (bp->req_flow_ctrl & FLOW_CTRL_RX) {
1689 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1690 adv = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1691 }
1692 else {
1693 adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1694 }
1695 }
1696 return adv;
1697 }
1698
1699 static int bnx2_fw_sync(struct bnx2 *, u32, int, int);
1700
1701 static int
1702 bnx2_setup_remote_phy(struct bnx2 *bp, u8 port)
1703 __releases(&bp->phy_lock)
1704 __acquires(&bp->phy_lock)
1705 {
1706 u32 speed_arg = 0, pause_adv;
1707
1708 pause_adv = bnx2_phy_get_pause_adv(bp);
1709
1710 if (bp->autoneg & AUTONEG_SPEED) {
1711 speed_arg |= BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG;
1712 if (bp->advertising & ADVERTISED_10baseT_Half)
1713 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10HALF;
1714 if (bp->advertising & ADVERTISED_10baseT_Full)
1715 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10FULL;
1716 if (bp->advertising & ADVERTISED_100baseT_Half)
1717 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100HALF;
1718 if (bp->advertising & ADVERTISED_100baseT_Full)
1719 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100FULL;
1720 if (bp->advertising & ADVERTISED_1000baseT_Full)
1721 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
1722 if (bp->advertising & ADVERTISED_2500baseX_Full)
1723 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
1724 } else {
1725 if (bp->req_line_speed == SPEED_2500)
1726 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
1727 else if (bp->req_line_speed == SPEED_1000)
1728 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
1729 else if (bp->req_line_speed == SPEED_100) {
1730 if (bp->req_duplex == DUPLEX_FULL)
1731 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100FULL;
1732 else
1733 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100HALF;
1734 } else if (bp->req_line_speed == SPEED_10) {
1735 if (bp->req_duplex == DUPLEX_FULL)
1736 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10FULL;
1737 else
1738 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10HALF;
1739 }
1740 }
1741
1742 if (pause_adv & (ADVERTISE_1000XPAUSE | ADVERTISE_PAUSE_CAP))
1743 speed_arg |= BNX2_NETLINK_SET_LINK_FC_SYM_PAUSE;
1744 if (pause_adv & (ADVERTISE_1000XPSE_ASYM | ADVERTISE_PAUSE_ASYM))
1745 speed_arg |= BNX2_NETLINK_SET_LINK_FC_ASYM_PAUSE;
1746
1747 if (port == PORT_TP)
1748 speed_arg |= BNX2_NETLINK_SET_LINK_PHY_APP_REMOTE |
1749 BNX2_NETLINK_SET_LINK_ETH_AT_WIRESPEED;
1750
1751 bnx2_shmem_wr(bp, BNX2_DRV_MB_ARG0, speed_arg);
1752
1753 spin_unlock_bh(&bp->phy_lock);
1754 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_CMD_SET_LINK, 1, 0);
1755 spin_lock_bh(&bp->phy_lock);
1756
1757 return 0;
1758 }
1759
1760 static int
1761 bnx2_setup_serdes_phy(struct bnx2 *bp, u8 port)
1762 __releases(&bp->phy_lock)
1763 __acquires(&bp->phy_lock)
1764 {
1765 u32 adv, bmcr;
1766 u32 new_adv = 0;
1767
1768 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
1769 return bnx2_setup_remote_phy(bp, port);
1770
1771 if (!(bp->autoneg & AUTONEG_SPEED)) {
1772 u32 new_bmcr;
1773 int force_link_down = 0;
1774
1775 if (bp->req_line_speed == SPEED_2500) {
1776 if (!bnx2_test_and_enable_2g5(bp))
1777 force_link_down = 1;
1778 } else if (bp->req_line_speed == SPEED_1000) {
1779 if (bnx2_test_and_disable_2g5(bp))
1780 force_link_down = 1;
1781 }
1782 bnx2_read_phy(bp, bp->mii_adv, &adv);
1783 adv &= ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF);
1784
1785 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1786 new_bmcr = bmcr & ~BMCR_ANENABLE;
1787 new_bmcr |= BMCR_SPEED1000;
1788
1789 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
1790 if (bp->req_line_speed == SPEED_2500)
1791 bnx2_enable_forced_2g5(bp);
1792 else if (bp->req_line_speed == SPEED_1000) {
1793 bnx2_disable_forced_2g5(bp);
1794 new_bmcr &= ~0x2000;
1795 }
1796
1797 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {
1798 if (bp->req_line_speed == SPEED_2500)
1799 new_bmcr |= BCM5708S_BMCR_FORCE_2500;
1800 else
1801 new_bmcr = bmcr & ~BCM5708S_BMCR_FORCE_2500;
1802 }
1803
1804 if (bp->req_duplex == DUPLEX_FULL) {
1805 adv |= ADVERTISE_1000XFULL;
1806 new_bmcr |= BMCR_FULLDPLX;
1807 }
1808 else {
1809 adv |= ADVERTISE_1000XHALF;
1810 new_bmcr &= ~BMCR_FULLDPLX;
1811 }
1812 if ((new_bmcr != bmcr) || (force_link_down)) {
1813 /* Force a link down visible on the other side */
1814 if (bp->link_up) {
1815 bnx2_write_phy(bp, bp->mii_adv, adv &
1816 ~(ADVERTISE_1000XFULL |
1817 ADVERTISE_1000XHALF));
1818 bnx2_write_phy(bp, bp->mii_bmcr, bmcr |
1819 BMCR_ANRESTART | BMCR_ANENABLE);
1820
1821 bp->link_up = 0;
1822 netif_carrier_off(bp->dev);
1823 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
1824 bnx2_report_link(bp);
1825 }
1826 bnx2_write_phy(bp, bp->mii_adv, adv);
1827 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
1828 } else {
1829 bnx2_resolve_flow_ctrl(bp);
1830 bnx2_set_mac_link(bp);
1831 }
1832 return 0;
1833 }
1834
1835 bnx2_test_and_enable_2g5(bp);
1836
1837 if (bp->advertising & ADVERTISED_1000baseT_Full)
1838 new_adv |= ADVERTISE_1000XFULL;
1839
1840 new_adv |= bnx2_phy_get_pause_adv(bp);
1841
1842 bnx2_read_phy(bp, bp->mii_adv, &adv);
1843 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
1844
1845 bp->serdes_an_pending = 0;
1846 if ((adv != new_adv) || ((bmcr & BMCR_ANENABLE) == 0)) {
1847 /* Force a link down visible on the other side */
1848 if (bp->link_up) {
1849 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
1850 spin_unlock_bh(&bp->phy_lock);
1851 msleep(20);
1852 spin_lock_bh(&bp->phy_lock);
1853 }
1854
1855 bnx2_write_phy(bp, bp->mii_adv, new_adv);
1856 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART |
1857 BMCR_ANENABLE);
1858 /* Speed up link-up time when the link partner
1859 * does not autonegotiate which is very common
1860 * in blade servers. Some blade servers use
1861 * IPMI for kerboard input and it's important
1862 * to minimize link disruptions. Autoneg. involves
1863 * exchanging base pages plus 3 next pages and
1864 * normally completes in about 120 msec.
1865 */
1866 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
1867 bp->serdes_an_pending = 1;
1868 mod_timer(&bp->timer, jiffies + bp->current_interval);
1869 } else {
1870 bnx2_resolve_flow_ctrl(bp);
1871 bnx2_set_mac_link(bp);
1872 }
1873
1874 return 0;
1875 }
1876
1877 #define ETHTOOL_ALL_FIBRE_SPEED \
1878 (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) ? \
1879 (ADVERTISED_2500baseX_Full | ADVERTISED_1000baseT_Full) :\
1880 (ADVERTISED_1000baseT_Full)
1881
1882 #define ETHTOOL_ALL_COPPER_SPEED \
1883 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1884 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1885 ADVERTISED_1000baseT_Full)
1886
1887 #define PHY_ALL_10_100_SPEED (ADVERTISE_10HALF | ADVERTISE_10FULL | \
1888 ADVERTISE_100HALF | ADVERTISE_100FULL | ADVERTISE_CSMA)
1889
1890 #define PHY_ALL_1000_SPEED (ADVERTISE_1000HALF | ADVERTISE_1000FULL)
1891
1892 static void
1893 bnx2_set_default_remote_link(struct bnx2 *bp)
1894 {
1895 u32 link;
1896
1897 if (bp->phy_port == PORT_TP)
1898 link = bnx2_shmem_rd(bp, BNX2_RPHY_COPPER_LINK);
1899 else
1900 link = bnx2_shmem_rd(bp, BNX2_RPHY_SERDES_LINK);
1901
1902 if (link & BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG) {
1903 bp->req_line_speed = 0;
1904 bp->autoneg |= AUTONEG_SPEED;
1905 bp->advertising = ADVERTISED_Autoneg;
1906 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
1907 bp->advertising |= ADVERTISED_10baseT_Half;
1908 if (link & BNX2_NETLINK_SET_LINK_SPEED_10FULL)
1909 bp->advertising |= ADVERTISED_10baseT_Full;
1910 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
1911 bp->advertising |= ADVERTISED_100baseT_Half;
1912 if (link & BNX2_NETLINK_SET_LINK_SPEED_100FULL)
1913 bp->advertising |= ADVERTISED_100baseT_Full;
1914 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
1915 bp->advertising |= ADVERTISED_1000baseT_Full;
1916 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
1917 bp->advertising |= ADVERTISED_2500baseX_Full;
1918 } else {
1919 bp->autoneg = 0;
1920 bp->advertising = 0;
1921 bp->req_duplex = DUPLEX_FULL;
1922 if (link & BNX2_NETLINK_SET_LINK_SPEED_10) {
1923 bp->req_line_speed = SPEED_10;
1924 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
1925 bp->req_duplex = DUPLEX_HALF;
1926 }
1927 if (link & BNX2_NETLINK_SET_LINK_SPEED_100) {
1928 bp->req_line_speed = SPEED_100;
1929 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
1930 bp->req_duplex = DUPLEX_HALF;
1931 }
1932 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
1933 bp->req_line_speed = SPEED_1000;
1934 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
1935 bp->req_line_speed = SPEED_2500;
1936 }
1937 }
1938
1939 static void
1940 bnx2_set_default_link(struct bnx2 *bp)
1941 {
1942 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
1943 bnx2_set_default_remote_link(bp);
1944 return;
1945 }
1946
1947 bp->autoneg = AUTONEG_SPEED | AUTONEG_FLOW_CTRL;
1948 bp->req_line_speed = 0;
1949 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
1950 u32 reg;
1951
1952 bp->advertising = ETHTOOL_ALL_FIBRE_SPEED | ADVERTISED_Autoneg;
1953
1954 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG);
1955 reg &= BNX2_PORT_HW_CFG_CFG_DFLT_LINK_MASK;
1956 if (reg == BNX2_PORT_HW_CFG_CFG_DFLT_LINK_1G) {
1957 bp->autoneg = 0;
1958 bp->req_line_speed = bp->line_speed = SPEED_1000;
1959 bp->req_duplex = DUPLEX_FULL;
1960 }
1961 } else
1962 bp->advertising = ETHTOOL_ALL_COPPER_SPEED | ADVERTISED_Autoneg;
1963 }
1964
1965 static void
1966 bnx2_send_heart_beat(struct bnx2 *bp)
1967 {
1968 u32 msg;
1969 u32 addr;
1970
1971 spin_lock(&bp->indirect_lock);
1972 msg = (u32) (++bp->fw_drv_pulse_wr_seq & BNX2_DRV_PULSE_SEQ_MASK);
1973 addr = bp->shmem_base + BNX2_DRV_PULSE_MB;
1974 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, addr);
1975 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, msg);
1976 spin_unlock(&bp->indirect_lock);
1977 }
1978
1979 static void
1980 bnx2_remote_phy_event(struct bnx2 *bp)
1981 {
1982 u32 msg;
1983 u8 link_up = bp->link_up;
1984 u8 old_port;
1985
1986 msg = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
1987
1988 if (msg & BNX2_LINK_STATUS_HEART_BEAT_EXPIRED)
1989 bnx2_send_heart_beat(bp);
1990
1991 msg &= ~BNX2_LINK_STATUS_HEART_BEAT_EXPIRED;
1992
1993 if ((msg & BNX2_LINK_STATUS_LINK_UP) == BNX2_LINK_STATUS_LINK_DOWN)
1994 bp->link_up = 0;
1995 else {
1996 u32 speed;
1997
1998 bp->link_up = 1;
1999 speed = msg & BNX2_LINK_STATUS_SPEED_MASK;
2000 bp->duplex = DUPLEX_FULL;
2001 switch (speed) {
2002 case BNX2_LINK_STATUS_10HALF:
2003 bp->duplex = DUPLEX_HALF;
2004 /* fall through */
2005 case BNX2_LINK_STATUS_10FULL:
2006 bp->line_speed = SPEED_10;
2007 break;
2008 case BNX2_LINK_STATUS_100HALF:
2009 bp->duplex = DUPLEX_HALF;
2010 /* fall through */
2011 case BNX2_LINK_STATUS_100BASE_T4:
2012 case BNX2_LINK_STATUS_100FULL:
2013 bp->line_speed = SPEED_100;
2014 break;
2015 case BNX2_LINK_STATUS_1000HALF:
2016 bp->duplex = DUPLEX_HALF;
2017 /* fall through */
2018 case BNX2_LINK_STATUS_1000FULL:
2019 bp->line_speed = SPEED_1000;
2020 break;
2021 case BNX2_LINK_STATUS_2500HALF:
2022 bp->duplex = DUPLEX_HALF;
2023 /* fall through */
2024 case BNX2_LINK_STATUS_2500FULL:
2025 bp->line_speed = SPEED_2500;
2026 break;
2027 default:
2028 bp->line_speed = 0;
2029 break;
2030 }
2031
2032 bp->flow_ctrl = 0;
2033 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
2034 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
2035 if (bp->duplex == DUPLEX_FULL)
2036 bp->flow_ctrl = bp->req_flow_ctrl;
2037 } else {
2038 if (msg & BNX2_LINK_STATUS_TX_FC_ENABLED)
2039 bp->flow_ctrl |= FLOW_CTRL_TX;
2040 if (msg & BNX2_LINK_STATUS_RX_FC_ENABLED)
2041 bp->flow_ctrl |= FLOW_CTRL_RX;
2042 }
2043
2044 old_port = bp->phy_port;
2045 if (msg & BNX2_LINK_STATUS_SERDES_LINK)
2046 bp->phy_port = PORT_FIBRE;
2047 else
2048 bp->phy_port = PORT_TP;
2049
2050 if (old_port != bp->phy_port)
2051 bnx2_set_default_link(bp);
2052
2053 }
2054 if (bp->link_up != link_up)
2055 bnx2_report_link(bp);
2056
2057 bnx2_set_mac_link(bp);
2058 }
2059
2060 static int
2061 bnx2_set_remote_link(struct bnx2 *bp)
2062 {
2063 u32 evt_code;
2064
2065 evt_code = bnx2_shmem_rd(bp, BNX2_FW_EVT_CODE_MB);
2066 switch (evt_code) {
2067 case BNX2_FW_EVT_CODE_LINK_EVENT:
2068 bnx2_remote_phy_event(bp);
2069 break;
2070 case BNX2_FW_EVT_CODE_SW_TIMER_EXPIRATION_EVENT:
2071 default:
2072 bnx2_send_heart_beat(bp);
2073 break;
2074 }
2075 return 0;
2076 }
2077
2078 static int
2079 bnx2_setup_copper_phy(struct bnx2 *bp)
2080 __releases(&bp->phy_lock)
2081 __acquires(&bp->phy_lock)
2082 {
2083 u32 bmcr, adv_reg, new_adv = 0;
2084 u32 new_bmcr;
2085
2086 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
2087
2088 bnx2_read_phy(bp, bp->mii_adv, &adv_reg);
2089 adv_reg &= (PHY_ALL_10_100_SPEED | ADVERTISE_PAUSE_CAP |
2090 ADVERTISE_PAUSE_ASYM);
2091
2092 new_adv = ADVERTISE_CSMA | ethtool_adv_to_mii_adv_t(bp->advertising);
2093
2094 if (bp->autoneg & AUTONEG_SPEED) {
2095 u32 adv1000_reg;
2096 u32 new_adv1000 = 0;
2097
2098 new_adv |= bnx2_phy_get_pause_adv(bp);
2099
2100 bnx2_read_phy(bp, MII_CTRL1000, &adv1000_reg);
2101 adv1000_reg &= PHY_ALL_1000_SPEED;
2102
2103 new_adv1000 |= ethtool_adv_to_mii_ctrl1000_t(bp->advertising);
2104 if ((adv1000_reg != new_adv1000) ||
2105 (adv_reg != new_adv) ||
2106 ((bmcr & BMCR_ANENABLE) == 0)) {
2107
2108 bnx2_write_phy(bp, bp->mii_adv, new_adv);
2109 bnx2_write_phy(bp, MII_CTRL1000, new_adv1000);
2110 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_ANRESTART |
2111 BMCR_ANENABLE);
2112 }
2113 else if (bp->link_up) {
2114 /* Flow ctrl may have changed from auto to forced */
2115 /* or vice-versa. */
2116
2117 bnx2_resolve_flow_ctrl(bp);
2118 bnx2_set_mac_link(bp);
2119 }
2120 return 0;
2121 }
2122
2123 /* advertise nothing when forcing speed */
2124 if (adv_reg != new_adv)
2125 bnx2_write_phy(bp, bp->mii_adv, new_adv);
2126
2127 new_bmcr = 0;
2128 if (bp->req_line_speed == SPEED_100) {
2129 new_bmcr |= BMCR_SPEED100;
2130 }
2131 if (bp->req_duplex == DUPLEX_FULL) {
2132 new_bmcr |= BMCR_FULLDPLX;
2133 }
2134 if (new_bmcr != bmcr) {
2135 u32 bmsr;
2136
2137 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2138 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2139
2140 if (bmsr & BMSR_LSTATUS) {
2141 /* Force link down */
2142 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
2143 spin_unlock_bh(&bp->phy_lock);
2144 msleep(50);
2145 spin_lock_bh(&bp->phy_lock);
2146
2147 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2148 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
2149 }
2150
2151 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
2152
2153 /* Normally, the new speed is setup after the link has
2154 * gone down and up again. In some cases, link will not go
2155 * down so we need to set up the new speed here.
2156 */
2157 if (bmsr & BMSR_LSTATUS) {
2158 bp->line_speed = bp->req_line_speed;
2159 bp->duplex = bp->req_duplex;
2160 bnx2_resolve_flow_ctrl(bp);
2161 bnx2_set_mac_link(bp);
2162 }
2163 } else {
2164 bnx2_resolve_flow_ctrl(bp);
2165 bnx2_set_mac_link(bp);
2166 }
2167 return 0;
2168 }
2169
2170 static int
2171 bnx2_setup_phy(struct bnx2 *bp, u8 port)
2172 __releases(&bp->phy_lock)
2173 __acquires(&bp->phy_lock)
2174 {
2175 if (bp->loopback == MAC_LOOPBACK)
2176 return 0;
2177
2178 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
2179 return bnx2_setup_serdes_phy(bp, port);
2180 }
2181 else {
2182 return bnx2_setup_copper_phy(bp);
2183 }
2184 }
2185
2186 static int
2187 bnx2_init_5709s_phy(struct bnx2 *bp, int reset_phy)
2188 {
2189 u32 val;
2190
2191 bp->mii_bmcr = MII_BMCR + 0x10;
2192 bp->mii_bmsr = MII_BMSR + 0x10;
2193 bp->mii_bmsr1 = MII_BNX2_GP_TOP_AN_STATUS1;
2194 bp->mii_adv = MII_ADVERTISE + 0x10;
2195 bp->mii_lpa = MII_LPA + 0x10;
2196 bp->mii_up1 = MII_BNX2_OVER1G_UP1;
2197
2198 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_AER);
2199 bnx2_write_phy(bp, MII_BNX2_AER_AER, MII_BNX2_AER_AER_AN_MMD);
2200
2201 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
2202 if (reset_phy)
2203 bnx2_reset_phy(bp);
2204
2205 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_SERDES_DIG);
2206
2207 bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, &val);
2208 val &= ~MII_BNX2_SD_1000XCTL1_AUTODET;
2209 val |= MII_BNX2_SD_1000XCTL1_FIBER;
2210 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, val);
2211
2212 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
2213 bnx2_read_phy(bp, MII_BNX2_OVER1G_UP1, &val);
2214 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
2215 val |= BCM5708S_UP1_2G5;
2216 else
2217 val &= ~BCM5708S_UP1_2G5;
2218 bnx2_write_phy(bp, MII_BNX2_OVER1G_UP1, val);
2219
2220 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_BAM_NXTPG);
2221 bnx2_read_phy(bp, MII_BNX2_BAM_NXTPG_CTL, &val);
2222 val |= MII_BNX2_NXTPG_CTL_T2 | MII_BNX2_NXTPG_CTL_BAM;
2223 bnx2_write_phy(bp, MII_BNX2_BAM_NXTPG_CTL, val);
2224
2225 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_CL73_USERB0);
2226
2227 val = MII_BNX2_CL73_BAM_EN | MII_BNX2_CL73_BAM_STA_MGR_EN |
2228 MII_BNX2_CL73_BAM_NP_AFT_BP_EN;
2229 bnx2_write_phy(bp, MII_BNX2_CL73_BAM_CTL1, val);
2230
2231 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
2232
2233 return 0;
2234 }
2235
2236 static int
2237 bnx2_init_5708s_phy(struct bnx2 *bp, int reset_phy)
2238 {
2239 u32 val;
2240
2241 if (reset_phy)
2242 bnx2_reset_phy(bp);
2243
2244 bp->mii_up1 = BCM5708S_UP1;
2245
2246 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG3);
2247 bnx2_write_phy(bp, BCM5708S_DIG_3_0, BCM5708S_DIG_3_0_USE_IEEE);
2248 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
2249
2250 bnx2_read_phy(bp, BCM5708S_1000X_CTL1, &val);
2251 val |= BCM5708S_1000X_CTL1_FIBER_MODE | BCM5708S_1000X_CTL1_AUTODET_EN;
2252 bnx2_write_phy(bp, BCM5708S_1000X_CTL1, val);
2253
2254 bnx2_read_phy(bp, BCM5708S_1000X_CTL2, &val);
2255 val |= BCM5708S_1000X_CTL2_PLLEL_DET_EN;
2256 bnx2_write_phy(bp, BCM5708S_1000X_CTL2, val);
2257
2258 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) {
2259 bnx2_read_phy(bp, BCM5708S_UP1, &val);
2260 val |= BCM5708S_UP1_2G5;
2261 bnx2_write_phy(bp, BCM5708S_UP1, val);
2262 }
2263
2264 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||
2265 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||
2266 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1)) {
2267 /* increase tx signal amplitude */
2268 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2269 BCM5708S_BLK_ADDR_TX_MISC);
2270 bnx2_read_phy(bp, BCM5708S_TX_ACTL1, &val);
2271 val &= ~BCM5708S_TX_ACTL1_DRIVER_VCM;
2272 bnx2_write_phy(bp, BCM5708S_TX_ACTL1, val);
2273 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
2274 }
2275
2276 val = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG) &
2277 BNX2_PORT_HW_CFG_CFG_TXCTL3_MASK;
2278
2279 if (val) {
2280 u32 is_backplane;
2281
2282 is_backplane = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
2283 if (is_backplane & BNX2_SHARED_HW_CFG_PHY_BACKPLANE) {
2284 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2285 BCM5708S_BLK_ADDR_TX_MISC);
2286 bnx2_write_phy(bp, BCM5708S_TX_ACTL3, val);
2287 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
2288 BCM5708S_BLK_ADDR_DIG);
2289 }
2290 }
2291 return 0;
2292 }
2293
2294 static int
2295 bnx2_init_5706s_phy(struct bnx2 *bp, int reset_phy)
2296 {
2297 if (reset_phy)
2298 bnx2_reset_phy(bp);
2299
2300 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
2301
2302 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
2303 BNX2_WR(bp, BNX2_MISC_GP_HW_CTL0, 0x300);
2304
2305 if (bp->dev->mtu > ETH_DATA_LEN) {
2306 u32 val;
2307
2308 /* Set extended packet length bit */
2309 bnx2_write_phy(bp, 0x18, 0x7);
2310 bnx2_read_phy(bp, 0x18, &val);
2311 bnx2_write_phy(bp, 0x18, (val & 0xfff8) | 0x4000);
2312
2313 bnx2_write_phy(bp, 0x1c, 0x6c00);
2314 bnx2_read_phy(bp, 0x1c, &val);
2315 bnx2_write_phy(bp, 0x1c, (val & 0x3ff) | 0xec02);
2316 }
2317 else {
2318 u32 val;
2319
2320 bnx2_write_phy(bp, 0x18, 0x7);
2321 bnx2_read_phy(bp, 0x18, &val);
2322 bnx2_write_phy(bp, 0x18, val & ~0x4007);
2323
2324 bnx2_write_phy(bp, 0x1c, 0x6c00);
2325 bnx2_read_phy(bp, 0x1c, &val);
2326 bnx2_write_phy(bp, 0x1c, (val & 0x3fd) | 0xec00);
2327 }
2328
2329 return 0;
2330 }
2331
2332 static int
2333 bnx2_init_copper_phy(struct bnx2 *bp, int reset_phy)
2334 {
2335 u32 val;
2336
2337 if (reset_phy)
2338 bnx2_reset_phy(bp);
2339
2340 if (bp->phy_flags & BNX2_PHY_FLAG_CRC_FIX) {
2341 bnx2_write_phy(bp, 0x18, 0x0c00);
2342 bnx2_write_phy(bp, 0x17, 0x000a);
2343 bnx2_write_phy(bp, 0x15, 0x310b);
2344 bnx2_write_phy(bp, 0x17, 0x201f);
2345 bnx2_write_phy(bp, 0x15, 0x9506);
2346 bnx2_write_phy(bp, 0x17, 0x401f);
2347 bnx2_write_phy(bp, 0x15, 0x14e2);
2348 bnx2_write_phy(bp, 0x18, 0x0400);
2349 }
2350
2351 if (bp->phy_flags & BNX2_PHY_FLAG_DIS_EARLY_DAC) {
2352 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS,
2353 MII_BNX2_DSP_EXPAND_REG | 0x8);
2354 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
2355 val &= ~(1 << 8);
2356 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val);
2357 }
2358
2359 if (bp->dev->mtu > ETH_DATA_LEN) {
2360 /* Set extended packet length bit */
2361 bnx2_write_phy(bp, 0x18, 0x7);
2362 bnx2_read_phy(bp, 0x18, &val);
2363 bnx2_write_phy(bp, 0x18, val | 0x4000);
2364
2365 bnx2_read_phy(bp, 0x10, &val);
2366 bnx2_write_phy(bp, 0x10, val | 0x1);
2367 }
2368 else {
2369 bnx2_write_phy(bp, 0x18, 0x7);
2370 bnx2_read_phy(bp, 0x18, &val);
2371 bnx2_write_phy(bp, 0x18, val & ~0x4007);
2372
2373 bnx2_read_phy(bp, 0x10, &val);
2374 bnx2_write_phy(bp, 0x10, val & ~0x1);
2375 }
2376
2377 /* ethernet@wirespeed */
2378 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, AUX_CTL_MISC_CTL);
2379 bnx2_read_phy(bp, MII_BNX2_AUX_CTL, &val);
2380 val |= AUX_CTL_MISC_CTL_WR | AUX_CTL_MISC_CTL_WIRESPEED;
2381
2382 /* auto-mdix */
2383 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
2384 val |= AUX_CTL_MISC_CTL_AUTOMDIX;
2385
2386 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, val);
2387 return 0;
2388 }
2389
2390
2391 static int
2392 bnx2_init_phy(struct bnx2 *bp, int reset_phy)
2393 __releases(&bp->phy_lock)
2394 __acquires(&bp->phy_lock)
2395 {
2396 u32 val;
2397 int rc = 0;
2398
2399 bp->phy_flags &= ~BNX2_PHY_FLAG_INT_MODE_MASK;
2400 bp->phy_flags |= BNX2_PHY_FLAG_INT_MODE_LINK_READY;
2401
2402 bp->mii_bmcr = MII_BMCR;
2403 bp->mii_bmsr = MII_BMSR;
2404 bp->mii_bmsr1 = MII_BMSR;
2405 bp->mii_adv = MII_ADVERTISE;
2406 bp->mii_lpa = MII_LPA;
2407
2408 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
2409
2410 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
2411 goto setup_phy;
2412
2413 bnx2_read_phy(bp, MII_PHYSID1, &val);
2414 bp->phy_id = val << 16;
2415 bnx2_read_phy(bp, MII_PHYSID2, &val);
2416 bp->phy_id |= val & 0xffff;
2417
2418 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
2419 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
2420 rc = bnx2_init_5706s_phy(bp, reset_phy);
2421 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
2422 rc = bnx2_init_5708s_phy(bp, reset_phy);
2423 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
2424 rc = bnx2_init_5709s_phy(bp, reset_phy);
2425 }
2426 else {
2427 rc = bnx2_init_copper_phy(bp, reset_phy);
2428 }
2429
2430 setup_phy:
2431 if (!rc)
2432 rc = bnx2_setup_phy(bp, bp->phy_port);
2433
2434 return rc;
2435 }
2436
2437 static int
2438 bnx2_set_mac_loopback(struct bnx2 *bp)
2439 {
2440 u32 mac_mode;
2441
2442 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
2443 mac_mode &= ~BNX2_EMAC_MODE_PORT;
2444 mac_mode |= BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK;
2445 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
2446 bp->link_up = 1;
2447 return 0;
2448 }
2449
2450 static int bnx2_test_link(struct bnx2 *);
2451
2452 static int
2453 bnx2_set_phy_loopback(struct bnx2 *bp)
2454 {
2455 u32 mac_mode;
2456 int rc, i;
2457
2458 spin_lock_bh(&bp->phy_lock);
2459 rc = bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK | BMCR_FULLDPLX |
2460 BMCR_SPEED1000);
2461 spin_unlock_bh(&bp->phy_lock);
2462 if (rc)
2463 return rc;
2464
2465 for (i = 0; i < 10; i++) {
2466 if (bnx2_test_link(bp) == 0)
2467 break;
2468 msleep(100);
2469 }
2470
2471 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
2472 mac_mode &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
2473 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
2474 BNX2_EMAC_MODE_25G_MODE);
2475
2476 mac_mode |= BNX2_EMAC_MODE_PORT_GMII;
2477 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
2478 bp->link_up = 1;
2479 return 0;
2480 }
2481
2482 static void
2483 bnx2_dump_mcp_state(struct bnx2 *bp)
2484 {
2485 struct net_device *dev = bp->dev;
2486 u32 mcp_p0, mcp_p1;
2487
2488 netdev_err(dev, "<--- start MCP states dump --->\n");
2489 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
2490 mcp_p0 = BNX2_MCP_STATE_P0;
2491 mcp_p1 = BNX2_MCP_STATE_P1;
2492 } else {
2493 mcp_p0 = BNX2_MCP_STATE_P0_5708;
2494 mcp_p1 = BNX2_MCP_STATE_P1_5708;
2495 }
2496 netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",
2497 bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));
2498 netdev_err(dev, "DEBUG: MCP mode[%08x] state[%08x] evt_mask[%08x]\n",
2499 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_MODE),
2500 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_STATE),
2501 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_EVENT_MASK));
2502 netdev_err(dev, "DEBUG: pc[%08x] pc[%08x] instr[%08x]\n",
2503 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
2504 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
2505 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_INSTRUCTION));
2506 netdev_err(dev, "DEBUG: shmem states:\n");
2507 netdev_err(dev, "DEBUG: drv_mb[%08x] fw_mb[%08x] link_status[%08x]",
2508 bnx2_shmem_rd(bp, BNX2_DRV_MB),
2509 bnx2_shmem_rd(bp, BNX2_FW_MB),
2510 bnx2_shmem_rd(bp, BNX2_LINK_STATUS));
2511 pr_cont(" drv_pulse_mb[%08x]\n", bnx2_shmem_rd(bp, BNX2_DRV_PULSE_MB));
2512 netdev_err(dev, "DEBUG: dev_info_signature[%08x] reset_type[%08x]",
2513 bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE),
2514 bnx2_shmem_rd(bp, BNX2_BC_STATE_RESET_TYPE));
2515 pr_cont(" condition[%08x]\n",
2516 bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION));
2517 DP_SHMEM_LINE(bp, BNX2_BC_RESET_TYPE);
2518 DP_SHMEM_LINE(bp, 0x3cc);
2519 DP_SHMEM_LINE(bp, 0x3dc);
2520 DP_SHMEM_LINE(bp, 0x3ec);
2521 netdev_err(dev, "DEBUG: 0x3fc[%08x]\n", bnx2_shmem_rd(bp, 0x3fc));
2522 netdev_err(dev, "<--- end MCP states dump --->\n");
2523 }
2524
2525 static int
2526 bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)
2527 {
2528 int i;
2529 u32 val;
2530
2531 bp->fw_wr_seq++;
2532 msg_data |= bp->fw_wr_seq;
2533 bp->fw_last_msg = msg_data;
2534
2535 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
2536
2537 if (!ack)
2538 return 0;
2539
2540 /* wait for an acknowledgement. */
2541 for (i = 0; i < (BNX2_FW_ACK_TIME_OUT_MS / 10); i++) {
2542 msleep(10);
2543
2544 val = bnx2_shmem_rd(bp, BNX2_FW_MB);
2545
2546 if ((val & BNX2_FW_MSG_ACK) == (msg_data & BNX2_DRV_MSG_SEQ))
2547 break;
2548 }
2549 if ((msg_data & BNX2_DRV_MSG_DATA) == BNX2_DRV_MSG_DATA_WAIT0)
2550 return 0;
2551
2552 /* If we timed out, inform the firmware that this is the case. */
2553 if ((val & BNX2_FW_MSG_ACK) != (msg_data & BNX2_DRV_MSG_SEQ)) {
2554 msg_data &= ~BNX2_DRV_MSG_CODE;
2555 msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;
2556
2557 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
2558 if (!silent) {
2559 pr_err("fw sync timeout, reset code = %x\n", msg_data);
2560 bnx2_dump_mcp_state(bp);
2561 }
2562
2563 return -EBUSY;
2564 }
2565
2566 if ((val & BNX2_FW_MSG_STATUS_MASK) != BNX2_FW_MSG_STATUS_OK)
2567 return -EIO;
2568
2569 return 0;
2570 }
2571
2572 static int
2573 bnx2_init_5709_context(struct bnx2 *bp)
2574 {
2575 int i, ret = 0;
2576 u32 val;
2577
2578 val = BNX2_CTX_COMMAND_ENABLED | BNX2_CTX_COMMAND_MEM_INIT | (1 << 12);
2579 val |= (BNX2_PAGE_BITS - 8) << 16;
2580 BNX2_WR(bp, BNX2_CTX_COMMAND, val);
2581 for (i = 0; i < 10; i++) {
2582 val = BNX2_RD(bp, BNX2_CTX_COMMAND);
2583 if (!(val & BNX2_CTX_COMMAND_MEM_INIT))
2584 break;
2585 udelay(2);
2586 }
2587 if (val & BNX2_CTX_COMMAND_MEM_INIT)
2588 return -EBUSY;
2589
2590 for (i = 0; i < bp->ctx_pages; i++) {
2591 int j;
2592
2593 if (bp->ctx_blk[i])
2594 memset(bp->ctx_blk[i], 0, BNX2_PAGE_SIZE);
2595 else
2596 return -ENOMEM;
2597
2598 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,
2599 (bp->ctx_blk_mapping[i] & 0xffffffff) |
2600 BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);
2601 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA1,
2602 (u64) bp->ctx_blk_mapping[i] >> 32);
2603 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL, i |
2604 BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
2605 for (j = 0; j < 10; j++) {
2606
2607 val = BNX2_RD(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL);
2608 if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
2609 break;
2610 udelay(5);
2611 }
2612 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
2613 ret = -EBUSY;
2614 break;
2615 }
2616 }
2617 return ret;
2618 }
2619
2620 static void
2621 bnx2_init_context(struct bnx2 *bp)
2622 {
2623 u32 vcid;
2624
2625 vcid = 96;
2626 while (vcid) {
2627 u32 vcid_addr, pcid_addr, offset;
2628 int i;
2629
2630 vcid--;
2631
2632 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
2633 u32 new_vcid;
2634
2635 vcid_addr = GET_PCID_ADDR(vcid);
2636 if (vcid & 0x8) {
2637 new_vcid = 0x60 + (vcid & 0xf0) + (vcid & 0x7);
2638 }
2639 else {
2640 new_vcid = vcid;
2641 }
2642 pcid_addr = GET_PCID_ADDR(new_vcid);
2643 }
2644 else {
2645 vcid_addr = GET_CID_ADDR(vcid);
2646 pcid_addr = vcid_addr;
2647 }
2648
2649 for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {
2650 vcid_addr += (i << PHY_CTX_SHIFT);
2651 pcid_addr += (i << PHY_CTX_SHIFT);
2652
2653 BNX2_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
2654 BNX2_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
2655
2656 /* Zero out the context. */
2657 for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)
2658 bnx2_ctx_wr(bp, vcid_addr, offset, 0);
2659 }
2660 }
2661 }
2662
2663 static int
2664 bnx2_alloc_bad_rbuf(struct bnx2 *bp)
2665 {
2666 u16 *good_mbuf;
2667 u32 good_mbuf_cnt;
2668 u32 val;
2669
2670 good_mbuf = kmalloc_array(512, sizeof(u16), GFP_KERNEL);
2671 if (!good_mbuf)
2672 return -ENOMEM;
2673
2674 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
2675 BNX2_MISC_ENABLE_SET_BITS_RX_MBUF_ENABLE);
2676
2677 good_mbuf_cnt = 0;
2678
2679 /* Allocate a bunch of mbufs and save the good ones in an array. */
2680 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
2681 while (val & BNX2_RBUF_STATUS1_FREE_COUNT) {
2682 bnx2_reg_wr_ind(bp, BNX2_RBUF_COMMAND,
2683 BNX2_RBUF_COMMAND_ALLOC_REQ);
2684
2685 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_FW_BUF_ALLOC);
2686
2687 val &= BNX2_RBUF_FW_BUF_ALLOC_VALUE;
2688
2689 /* The addresses with Bit 9 set are bad memory blocks. */
2690 if (!(val & (1 << 9))) {
2691 good_mbuf[good_mbuf_cnt] = (u16) val;
2692 good_mbuf_cnt++;
2693 }
2694
2695 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
2696 }
2697
2698 /* Free the good ones back to the mbuf pool thus discarding
2699 * all the bad ones. */
2700 while (good_mbuf_cnt) {
2701 good_mbuf_cnt--;
2702
2703 val = good_mbuf[good_mbuf_cnt];
2704 val = (val << 9) | val | 1;
2705
2706 bnx2_reg_wr_ind(bp, BNX2_RBUF_FW_BUF_FREE, val);
2707 }
2708 kfree(good_mbuf);
2709 return 0;
2710 }
2711
2712 static void
2713 bnx2_set_mac_addr(struct bnx2 *bp, u8 *mac_addr, u32 pos)
2714 {
2715 u32 val;
2716
2717 val = (mac_addr[0] << 8) | mac_addr[1];
2718
2719 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH0 + (pos * 8), val);
2720
2721 val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
2722 (mac_addr[4] << 8) | mac_addr[5];
2723
2724 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH1 + (pos * 8), val);
2725 }
2726
2727 static inline int
2728 bnx2_alloc_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
2729 {
2730 dma_addr_t mapping;
2731 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];
2732 struct bnx2_rx_bd *rxbd =
2733 &rxr->rx_pg_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];
2734 struct page *page = alloc_page(gfp);
2735
2736 if (!page)
2737 return -ENOMEM;
2738 mapping = dma_map_page(&bp->pdev->dev, page, 0, PAGE_SIZE,
2739 PCI_DMA_FROMDEVICE);
2740 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
2741 __free_page(page);
2742 return -EIO;
2743 }
2744
2745 rx_pg->page = page;
2746 dma_unmap_addr_set(rx_pg, mapping, mapping);
2747 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
2748 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
2749 return 0;
2750 }
2751
2752 static void
2753 bnx2_free_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index)
2754 {
2755 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];
2756 struct page *page = rx_pg->page;
2757
2758 if (!page)
2759 return;
2760
2761 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(rx_pg, mapping),
2762 PAGE_SIZE, PCI_DMA_FROMDEVICE);
2763
2764 __free_page(page);
2765 rx_pg->page = NULL;
2766 }
2767
2768 static inline int
2769 bnx2_alloc_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
2770 {
2771 u8 *data;
2772 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[index];
2773 dma_addr_t mapping;
2774 struct bnx2_rx_bd *rxbd =
2775 &rxr->rx_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];
2776
2777 data = kmalloc(bp->rx_buf_size, gfp);
2778 if (!data)
2779 return -ENOMEM;
2780
2781 mapping = dma_map_single(&bp->pdev->dev,
2782 get_l2_fhdr(data),
2783 bp->rx_buf_use_size,
2784 PCI_DMA_FROMDEVICE);
2785 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
2786 kfree(data);
2787 return -EIO;
2788 }
2789
2790 rx_buf->data = data;
2791 dma_unmap_addr_set(rx_buf, mapping, mapping);
2792
2793 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
2794 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
2795
2796 rxr->rx_prod_bseq += bp->rx_buf_use_size;
2797
2798 return 0;
2799 }
2800
2801 static int
2802 bnx2_phy_event_is_set(struct bnx2 *bp, struct bnx2_napi *bnapi, u32 event)
2803 {
2804 struct status_block *sblk = bnapi->status_blk.msi;
2805 u32 new_link_state, old_link_state;
2806 int is_set = 1;
2807
2808 new_link_state = sblk->status_attn_bits & event;
2809 old_link_state = sblk->status_attn_bits_ack & event;
2810 if (new_link_state != old_link_state) {
2811 if (new_link_state)
2812 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_SET_CMD, event);
2813 else
2814 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_CLEAR_CMD, event);
2815 } else
2816 is_set = 0;
2817
2818 return is_set;
2819 }
2820
2821 static void
2822 bnx2_phy_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
2823 {
2824 spin_lock(&bp->phy_lock);
2825
2826 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_LINK_STATE))
2827 bnx2_set_link(bp);
2828 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_TIMER_ABORT))
2829 bnx2_set_remote_link(bp);
2830
2831 spin_unlock(&bp->phy_lock);
2832
2833 }
2834
2835 static inline u16
2836 bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi)
2837 {
2838 u16 cons;
2839
2840 cons = READ_ONCE(*bnapi->hw_tx_cons_ptr);
2841
2842 if (unlikely((cons & BNX2_MAX_TX_DESC_CNT) == BNX2_MAX_TX_DESC_CNT))
2843 cons++;
2844 return cons;
2845 }
2846
2847 static int
2848 bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
2849 {
2850 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
2851 u16 hw_cons, sw_cons, sw_ring_cons;
2852 int tx_pkt = 0, index;
2853 unsigned int tx_bytes = 0;
2854 struct netdev_queue *txq;
2855
2856 index = (bnapi - bp->bnx2_napi);
2857 txq = netdev_get_tx_queue(bp->dev, index);
2858
2859 hw_cons = bnx2_get_hw_tx_cons(bnapi);
2860 sw_cons = txr->tx_cons;
2861
2862 while (sw_cons != hw_cons) {
2863 struct bnx2_sw_tx_bd *tx_buf;
2864 struct sk_buff *skb;
2865 int i, last;
2866
2867 sw_ring_cons = BNX2_TX_RING_IDX(sw_cons);
2868
2869 tx_buf = &txr->tx_buf_ring[sw_ring_cons];
2870 skb = tx_buf->skb;
2871
2872 /* prefetch skb_end_pointer() to speedup skb_shinfo(skb) */
2873 prefetch(&skb->end);
2874
2875 /* partial BD completions possible with TSO packets */
2876 if (tx_buf->is_gso) {
2877 u16 last_idx, last_ring_idx;
2878
2879 last_idx = sw_cons + tx_buf->nr_frags + 1;
2880 last_ring_idx = sw_ring_cons + tx_buf->nr_frags + 1;
2881 if (unlikely(last_ring_idx >= BNX2_MAX_TX_DESC_CNT)) {
2882 last_idx++;
2883 }
2884 if (((s16) ((s16) last_idx - (s16) hw_cons)) > 0) {
2885 break;
2886 }
2887 }
2888
2889 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
2890 skb_headlen(skb), PCI_DMA_TODEVICE);
2891
2892 tx_buf->skb = NULL;
2893 last = tx_buf->nr_frags;
2894
2895 for (i = 0; i < last; i++) {
2896 struct bnx2_sw_tx_bd *tx_buf;
2897
2898 sw_cons = BNX2_NEXT_TX_BD(sw_cons);
2899
2900 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(sw_cons)];
2901 dma_unmap_page(&bp->pdev->dev,
2902 dma_unmap_addr(tx_buf, mapping),
2903 skb_frag_size(&skb_shinfo(skb)->frags[i]),
2904 PCI_DMA_TODEVICE);
2905 }
2906
2907 sw_cons = BNX2_NEXT_TX_BD(sw_cons);
2908
2909 tx_bytes += skb->len;
2910 dev_kfree_skb_any(skb);
2911 tx_pkt++;
2912 if (tx_pkt == budget)
2913 break;
2914
2915 if (hw_cons == sw_cons)
2916 hw_cons = bnx2_get_hw_tx_cons(bnapi);
2917 }
2918
2919 netdev_tx_completed_queue(txq, tx_pkt, tx_bytes);
2920 txr->hw_tx_cons = hw_cons;
2921 txr->tx_cons = sw_cons;
2922
2923 /* Need to make the tx_cons update visible to bnx2_start_xmit()
2924 * before checking for netif_tx_queue_stopped(). Without the
2925 * memory barrier, there is a small possibility that bnx2_start_xmit()
2926 * will miss it and cause the queue to be stopped forever.
2927 */
2928 smp_mb();
2929
2930 if (unlikely(netif_tx_queue_stopped(txq)) &&
2931 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
2932 __netif_tx_lock(txq, smp_processor_id());
2933 if ((netif_tx_queue_stopped(txq)) &&
2934 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh))
2935 netif_tx_wake_queue(txq);
2936 __netif_tx_unlock(txq);
2937 }
2938
2939 return tx_pkt;
2940 }
2941
2942 static void
2943 bnx2_reuse_rx_skb_pages(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
2944 struct sk_buff *skb, int count)
2945 {
2946 struct bnx2_sw_pg *cons_rx_pg, *prod_rx_pg;
2947 struct bnx2_rx_bd *cons_bd, *prod_bd;
2948 int i;
2949 u16 hw_prod, prod;
2950 u16 cons = rxr->rx_pg_cons;
2951
2952 cons_rx_pg = &rxr->rx_pg_ring[cons];
2953
2954 /* The caller was unable to allocate a new page to replace the
2955 * last one in the frags array, so we need to recycle that page
2956 * and then free the skb.
2957 */
2958 if (skb) {
2959 struct page *page;
2960 struct skb_shared_info *shinfo;
2961
2962 shinfo = skb_shinfo(skb);
2963 shinfo->nr_frags--;
2964 page = skb_frag_page(&shinfo->frags[shinfo->nr_frags]);
2965 __skb_frag_set_page(&shinfo->frags[shinfo->nr_frags], NULL);
2966
2967 cons_rx_pg->page = page;
2968 dev_kfree_skb(skb);
2969 }
2970
2971 hw_prod = rxr->rx_pg_prod;
2972
2973 for (i = 0; i < count; i++) {
2974 prod = BNX2_RX_PG_RING_IDX(hw_prod);
2975
2976 prod_rx_pg = &rxr->rx_pg_ring[prod];
2977 cons_rx_pg = &rxr->rx_pg_ring[cons];
2978 cons_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(cons)]
2979 [BNX2_RX_IDX(cons)];
2980 prod_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(prod)]
2981 [BNX2_RX_IDX(prod)];
2982
2983 if (prod != cons) {
2984 prod_rx_pg->page = cons_rx_pg->page;
2985 cons_rx_pg->page = NULL;
2986 dma_unmap_addr_set(prod_rx_pg, mapping,
2987 dma_unmap_addr(cons_rx_pg, mapping));
2988
2989 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
2990 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
2991
2992 }
2993 cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(cons));
2994 hw_prod = BNX2_NEXT_RX_BD(hw_prod);
2995 }
2996 rxr->rx_pg_prod = hw_prod;
2997 rxr->rx_pg_cons = cons;
2998 }
2999
3000 static inline void
3001 bnx2_reuse_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
3002 u8 *data, u16 cons, u16 prod)
3003 {
3004 struct bnx2_sw_bd *cons_rx_buf, *prod_rx_buf;
3005 struct bnx2_rx_bd *cons_bd, *prod_bd;
3006
3007 cons_rx_buf = &rxr->rx_buf_ring[cons];
3008 prod_rx_buf = &rxr->rx_buf_ring[prod];
3009
3010 dma_sync_single_for_device(&bp->pdev->dev,
3011 dma_unmap_addr(cons_rx_buf, mapping),
3012 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH, PCI_DMA_FROMDEVICE);
3013
3014 rxr->rx_prod_bseq += bp->rx_buf_use_size;
3015
3016 prod_rx_buf->data = data;
3017
3018 if (cons == prod)
3019 return;
3020
3021 dma_unmap_addr_set(prod_rx_buf, mapping,
3022 dma_unmap_addr(cons_rx_buf, mapping));
3023
3024 cons_bd = &rxr->rx_desc_ring[BNX2_RX_RING(cons)][BNX2_RX_IDX(cons)];
3025 prod_bd = &rxr->rx_desc_ring[BNX2_RX_RING(prod)][BNX2_RX_IDX(prod)];
3026 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
3027 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
3028 }
3029
3030 static struct sk_buff *
3031 bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u8 *data,
3032 unsigned int len, unsigned int hdr_len, dma_addr_t dma_addr,
3033 u32 ring_idx)
3034 {
3035 int err;
3036 u16 prod = ring_idx & 0xffff;
3037 struct sk_buff *skb;
3038
3039 err = bnx2_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
3040 if (unlikely(err)) {
3041 bnx2_reuse_rx_data(bp, rxr, data, (u16) (ring_idx >> 16), prod);
3042 error:
3043 if (hdr_len) {
3044 unsigned int raw_len = len + 4;
3045 int pages = PAGE_ALIGN(raw_len - hdr_len) >> PAGE_SHIFT;
3046
3047 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
3048 }
3049 return NULL;
3050 }
3051
3052 dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
3053 PCI_DMA_FROMDEVICE);
3054 skb = build_skb(data, 0);
3055 if (!skb) {
3056 kfree(data);
3057 goto error;
3058 }
3059 skb_reserve(skb, ((u8 *)get_l2_fhdr(data) - data) + BNX2_RX_OFFSET);
3060 if (hdr_len == 0) {
3061 skb_put(skb, len);
3062 return skb;
3063 } else {
3064 unsigned int i, frag_len, frag_size, pages;
3065 struct bnx2_sw_pg *rx_pg;
3066 u16 pg_cons = rxr->rx_pg_cons;
3067 u16 pg_prod = rxr->rx_pg_prod;
3068
3069 frag_size = len + 4 - hdr_len;
3070 pages = PAGE_ALIGN(frag_size) >> PAGE_SHIFT;
3071 skb_put(skb, hdr_len);
3072
3073 for (i = 0; i < pages; i++) {
3074 dma_addr_t mapping_old;
3075
3076 frag_len = min(frag_size, (unsigned int) PAGE_SIZE);
3077 if (unlikely(frag_len <= 4)) {
3078 unsigned int tail = 4 - frag_len;
3079
3080 rxr->rx_pg_cons = pg_cons;
3081 rxr->rx_pg_prod = pg_prod;
3082 bnx2_reuse_rx_skb_pages(bp, rxr, NULL,
3083 pages - i);
3084 skb->len -= tail;
3085 if (i == 0) {
3086 skb->tail -= tail;
3087 } else {
3088 skb_frag_t *frag =
3089 &skb_shinfo(skb)->frags[i - 1];
3090 skb_frag_size_sub(frag, tail);
3091 skb->data_len -= tail;
3092 }
3093 return skb;
3094 }
3095 rx_pg = &rxr->rx_pg_ring[pg_cons];
3096
3097 /* Don't unmap yet. If we're unable to allocate a new
3098 * page, we need to recycle the page and the DMA addr.
3099 */
3100 mapping_old = dma_unmap_addr(rx_pg, mapping);
3101 if (i == pages - 1)
3102 frag_len -= 4;
3103
3104 skb_fill_page_desc(skb, i, rx_pg->page, 0, frag_len);
3105 rx_pg->page = NULL;
3106
3107 err = bnx2_alloc_rx_page(bp, rxr,
3108 BNX2_RX_PG_RING_IDX(pg_prod),
3109 GFP_ATOMIC);
3110 if (unlikely(err)) {
3111 rxr->rx_pg_cons = pg_cons;
3112 rxr->rx_pg_prod = pg_prod;
3113 bnx2_reuse_rx_skb_pages(bp, rxr, skb,
3114 pages - i);
3115 return NULL;
3116 }
3117
3118 dma_unmap_page(&bp->pdev->dev, mapping_old,
3119 PAGE_SIZE, PCI_DMA_FROMDEVICE);
3120
3121 frag_size -= frag_len;
3122 skb->data_len += frag_len;
3123 skb->truesize += PAGE_SIZE;
3124 skb->len += frag_len;
3125
3126 pg_prod = BNX2_NEXT_RX_BD(pg_prod);
3127 pg_cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(pg_cons));
3128 }
3129 rxr->rx_pg_prod = pg_prod;
3130 rxr->rx_pg_cons = pg_cons;
3131 }
3132 return skb;
3133 }
3134
3135 static inline u16
3136 bnx2_get_hw_rx_cons(struct bnx2_napi *bnapi)
3137 {
3138 u16 cons;
3139
3140 cons = READ_ONCE(*bnapi->hw_rx_cons_ptr);
3141
3142 if (unlikely((cons & BNX2_MAX_RX_DESC_CNT) == BNX2_MAX_RX_DESC_CNT))
3143 cons++;
3144 return cons;
3145 }
3146
3147 static int
3148 bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
3149 {
3150 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3151 u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
3152 struct l2_fhdr *rx_hdr;
3153 int rx_pkt = 0, pg_ring_used = 0;
3154
3155 if (budget <= 0)
3156 return rx_pkt;
3157
3158 hw_cons = bnx2_get_hw_rx_cons(bnapi);
3159 sw_cons = rxr->rx_cons;
3160 sw_prod = rxr->rx_prod;
3161
3162 /* Memory barrier necessary as speculative reads of the rx
3163 * buffer can be ahead of the index in the status block
3164 */
3165 rmb();
3166 while (sw_cons != hw_cons) {
3167 unsigned int len, hdr_len;
3168 u32 status;
3169 struct bnx2_sw_bd *rx_buf, *next_rx_buf;
3170 struct sk_buff *skb;
3171 dma_addr_t dma_addr;
3172 u8 *data;
3173 u16 next_ring_idx;
3174
3175 sw_ring_cons = BNX2_RX_RING_IDX(sw_cons);
3176 sw_ring_prod = BNX2_RX_RING_IDX(sw_prod);
3177
3178 rx_buf = &rxr->rx_buf_ring[sw_ring_cons];
3179 data = rx_buf->data;
3180 rx_buf->data = NULL;
3181
3182 rx_hdr = get_l2_fhdr(data);
3183 prefetch(rx_hdr);
3184
3185 dma_addr = dma_unmap_addr(rx_buf, mapping);
3186
3187 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr,
3188 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH,
3189 PCI_DMA_FROMDEVICE);
3190
3191 next_ring_idx = BNX2_RX_RING_IDX(BNX2_NEXT_RX_BD(sw_cons));
3192 next_rx_buf = &rxr->rx_buf_ring[next_ring_idx];
3193 prefetch(get_l2_fhdr(next_rx_buf->data));
3194
3195 len = rx_hdr->l2_fhdr_pkt_len;
3196 status = rx_hdr->l2_fhdr_status;
3197
3198 hdr_len = 0;
3199 if (status & L2_FHDR_STATUS_SPLIT) {
3200 hdr_len = rx_hdr->l2_fhdr_ip_xsum;
3201 pg_ring_used = 1;
3202 } else if (len > bp->rx_jumbo_thresh) {
3203 hdr_len = bp->rx_jumbo_thresh;
3204 pg_ring_used = 1;
3205 }
3206
3207 if (unlikely(status & (L2_FHDR_ERRORS_BAD_CRC |
3208 L2_FHDR_ERRORS_PHY_DECODE |
3209 L2_FHDR_ERRORS_ALIGNMENT |
3210 L2_FHDR_ERRORS_TOO_SHORT |
3211 L2_FHDR_ERRORS_GIANT_FRAME))) {
3212
3213 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
3214 sw_ring_prod);
3215 if (pg_ring_used) {
3216 int pages;
3217
3218 pages = PAGE_ALIGN(len - hdr_len) >> PAGE_SHIFT;
3219
3220 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
3221 }
3222 goto next_rx;
3223 }
3224
3225 len -= 4;
3226
3227 if (len <= bp->rx_copy_thresh) {
3228 skb = netdev_alloc_skb(bp->dev, len + 6);
3229 if (!skb) {
3230 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
3231 sw_ring_prod);
3232 goto next_rx;
3233 }
3234
3235 /* aligned copy */
3236 memcpy(skb->data,
3237 (u8 *)rx_hdr + BNX2_RX_OFFSET - 6,
3238 len + 6);
3239 skb_reserve(skb, 6);
3240 skb_put(skb, len);
3241
3242 bnx2_reuse_rx_data(bp, rxr, data,
3243 sw_ring_cons, sw_ring_prod);
3244
3245 } else {
3246 skb = bnx2_rx_skb(bp, rxr, data, len, hdr_len, dma_addr,
3247 (sw_ring_cons << 16) | sw_ring_prod);
3248 if (!skb)
3249 goto next_rx;
3250 }
3251 if ((status & L2_FHDR_STATUS_L2_VLAN_TAG) &&
3252 !(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG))
3253 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rx_hdr->l2_fhdr_vlan_tag);
3254
3255 skb->protocol = eth_type_trans(skb, bp->dev);
3256
3257 if (len > (bp->dev->mtu + ETH_HLEN) &&
3258 skb->protocol != htons(0x8100) &&
3259 skb->protocol != htons(ETH_P_8021AD)) {
3260
3261 dev_kfree_skb(skb);
3262 goto next_rx;
3263
3264 }
3265
3266 skb_checksum_none_assert(skb);
3267 if ((bp->dev->features & NETIF_F_RXCSUM) &&
3268 (status & (L2_FHDR_STATUS_TCP_SEGMENT |
3269 L2_FHDR_STATUS_UDP_DATAGRAM))) {
3270
3271 if (likely((status & (L2_FHDR_ERRORS_TCP_XSUM |
3272 L2_FHDR_ERRORS_UDP_XSUM)) == 0))
3273 skb->ip_summed = CHECKSUM_UNNECESSARY;
3274 }
3275 if ((bp->dev->features & NETIF_F_RXHASH) &&
3276 ((status & L2_FHDR_STATUS_USE_RXHASH) ==
3277 L2_FHDR_STATUS_USE_RXHASH))
3278 skb_set_hash(skb, rx_hdr->l2_fhdr_hash,
3279 PKT_HASH_TYPE_L3);
3280
3281 skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);
3282 napi_gro_receive(&bnapi->napi, skb);
3283 rx_pkt++;
3284
3285 next_rx:
3286 sw_cons = BNX2_NEXT_RX_BD(sw_cons);
3287 sw_prod = BNX2_NEXT_RX_BD(sw_prod);
3288
3289 if (rx_pkt == budget)
3290 break;
3291
3292 /* Refresh hw_cons to see if there is new work */
3293 if (sw_cons == hw_cons) {
3294 hw_cons = bnx2_get_hw_rx_cons(bnapi);
3295 rmb();
3296 }
3297 }
3298 rxr->rx_cons = sw_cons;
3299 rxr->rx_prod = sw_prod;
3300
3301 if (pg_ring_used)
3302 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
3303
3304 BNX2_WR16(bp, rxr->rx_bidx_addr, sw_prod);
3305
3306 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
3307
3308 mmiowb();
3309
3310 return rx_pkt;
3311
3312 }
3313
3314 /* MSI ISR - The only difference between this and the INTx ISR
3315 * is that the MSI interrupt is always serviced.
3316 */
3317 static irqreturn_t
3318 bnx2_msi(int irq, void *dev_instance)
3319 {
3320 struct bnx2_napi *bnapi = dev_instance;
3321 struct bnx2 *bp = bnapi->bp;
3322
3323 prefetch(bnapi->status_blk.msi);
3324 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3325 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
3326 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
3327
3328 /* Return here if interrupt is disabled. */
3329 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3330 return IRQ_HANDLED;
3331
3332 napi_schedule(&bnapi->napi);
3333
3334 return IRQ_HANDLED;
3335 }
3336
3337 static irqreturn_t
3338 bnx2_msi_1shot(int irq, void *dev_instance)
3339 {
3340 struct bnx2_napi *bnapi = dev_instance;
3341 struct bnx2 *bp = bnapi->bp;
3342
3343 prefetch(bnapi->status_blk.msi);
3344
3345 /* Return here if interrupt is disabled. */
3346 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3347 return IRQ_HANDLED;
3348
3349 napi_schedule(&bnapi->napi);
3350
3351 return IRQ_HANDLED;
3352 }
3353
3354 static irqreturn_t
3355 bnx2_interrupt(int irq, void *dev_instance)
3356 {
3357 struct bnx2_napi *bnapi = dev_instance;
3358 struct bnx2 *bp = bnapi->bp;
3359 struct status_block *sblk = bnapi->status_blk.msi;
3360
3361 /* When using INTx, it is possible for the interrupt to arrive
3362 * at the CPU before the status block posted prior to the
3363 * interrupt. Reading a register will flush the status block.
3364 * When using MSI, the MSI message will always complete after
3365 * the status block write.
3366 */
3367 if ((sblk->status_idx == bnapi->last_status_idx) &&
3368 (BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS) &
3369 BNX2_PCICFG_MISC_STATUS_INTA_VALUE))
3370 return IRQ_NONE;
3371
3372 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3373 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
3374 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
3375
3376 /* Read back to deassert IRQ immediately to avoid too many
3377 * spurious interrupts.
3378 */
3379 BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
3380
3381 /* Return here if interrupt is shared and is disabled. */
3382 if (unlikely(atomic_read(&bp->intr_sem) != 0))
3383 return IRQ_HANDLED;
3384
3385 if (napi_schedule_prep(&bnapi->napi)) {
3386 bnapi->last_status_idx = sblk->status_idx;
3387 __napi_schedule(&bnapi->napi);
3388 }
3389
3390 return IRQ_HANDLED;
3391 }
3392
3393 static inline int
3394 bnx2_has_fast_work(struct bnx2_napi *bnapi)
3395 {
3396 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
3397 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3398
3399 if ((bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons) ||
3400 (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons))
3401 return 1;
3402 return 0;
3403 }
3404
3405 #define STATUS_ATTN_EVENTS (STATUS_ATTN_BITS_LINK_STATE | \
3406 STATUS_ATTN_BITS_TIMER_ABORT)
3407
3408 static inline int
3409 bnx2_has_work(struct bnx2_napi *bnapi)
3410 {
3411 struct status_block *sblk = bnapi->status_blk.msi;
3412
3413 if (bnx2_has_fast_work(bnapi))
3414 return 1;
3415
3416 #ifdef BCM_CNIC
3417 if (bnapi->cnic_present && (bnapi->cnic_tag != sblk->status_idx))
3418 return 1;
3419 #endif
3420
3421 if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
3422 (sblk->status_attn_bits_ack & STATUS_ATTN_EVENTS))
3423 return 1;
3424
3425 return 0;
3426 }
3427
3428 static void
3429 bnx2_chk_missed_msi(struct bnx2 *bp)
3430 {
3431 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
3432 u32 msi_ctrl;
3433
3434 if (bnx2_has_work(bnapi)) {
3435 msi_ctrl = BNX2_RD(bp, BNX2_PCICFG_MSI_CONTROL);
3436 if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))
3437 return;
3438
3439 if (bnapi->last_status_idx == bp->idle_chk_status_idx) {
3440 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
3441 ~BNX2_PCICFG_MSI_CONTROL_ENABLE);
3442 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);
3443 bnx2_msi(bp->irq_tbl[0].vector, bnapi);
3444 }
3445 }
3446
3447 bp->idle_chk_status_idx = bnapi->last_status_idx;
3448 }
3449
3450 #ifdef BCM_CNIC
3451 static void bnx2_poll_cnic(struct bnx2 *bp, struct bnx2_napi *bnapi)
3452 {
3453 struct cnic_ops *c_ops;
3454
3455 if (!bnapi->cnic_present)
3456 return;
3457
3458 rcu_read_lock();
3459 c_ops = rcu_dereference(bp->cnic_ops);
3460 if (c_ops)
3461 bnapi->cnic_tag = c_ops->cnic_handler(bp->cnic_data,
3462 bnapi->status_blk.msi);
3463 rcu_read_unlock();
3464 }
3465 #endif
3466
3467 static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)
3468 {
3469 struct status_block *sblk = bnapi->status_blk.msi;
3470 u32 status_attn_bits = sblk->status_attn_bits;
3471 u32 status_attn_bits_ack = sblk->status_attn_bits_ack;
3472
3473 if ((status_attn_bits & STATUS_ATTN_EVENTS) !=
3474 (status_attn_bits_ack & STATUS_ATTN_EVENTS)) {
3475
3476 bnx2_phy_int(bp, bnapi);
3477
3478 /* This is needed to take care of transient status
3479 * during link changes.
3480 */
3481 BNX2_WR(bp, BNX2_HC_COMMAND,
3482 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
3483 BNX2_RD(bp, BNX2_HC_COMMAND);
3484 }
3485 }
3486
3487 static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,
3488 int work_done, int budget)
3489 {
3490 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
3491 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
3492
3493 if (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons)
3494 bnx2_tx_int(bp, bnapi, 0);
3495
3496 if (bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons)
3497 work_done += bnx2_rx_int(bp, bnapi, budget - work_done);
3498
3499 return work_done;
3500 }
3501
3502 static int bnx2_poll_msix(struct napi_struct *napi, int budget)
3503 {
3504 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
3505 struct bnx2 *bp = bnapi->bp;
3506 int work_done = 0;
3507 struct status_block_msix *sblk = bnapi->status_blk.msix;
3508
3509 while (1) {
3510 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
3511 if (unlikely(work_done >= budget))
3512 break;
3513
3514 bnapi->last_status_idx = sblk->status_idx;
3515 /* status idx must be read before checking for more work. */
3516 rmb();
3517 if (likely(!bnx2_has_fast_work(bnapi))) {
3518
3519 napi_complete_done(napi, work_done);
3520 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
3521 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3522 bnapi->last_status_idx);
3523 break;
3524 }
3525 }
3526 return work_done;
3527 }
3528
3529 static int bnx2_poll(struct napi_struct *napi, int budget)
3530 {
3531 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
3532 struct bnx2 *bp = bnapi->bp;
3533 int work_done = 0;
3534 struct status_block *sblk = bnapi->status_blk.msi;
3535
3536 while (1) {
3537 bnx2_poll_link(bp, bnapi);
3538
3539 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
3540
3541 #ifdef BCM_CNIC
3542 bnx2_poll_cnic(bp, bnapi);
3543 #endif
3544
3545 /* bnapi->last_status_idx is used below to tell the hw how
3546 * much work has been processed, so we must read it before
3547 * checking for more work.
3548 */
3549 bnapi->last_status_idx = sblk->status_idx;
3550
3551 if (unlikely(work_done >= budget))
3552 break;
3553
3554 rmb();
3555 if (likely(!bnx2_has_work(bnapi))) {
3556 napi_complete_done(napi, work_done);
3557 if (likely(bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)) {
3558 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3559 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3560 bnapi->last_status_idx);
3561 break;
3562 }
3563 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3564 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3565 BNX2_PCICFG_INT_ACK_CMD_MASK_INT |
3566 bnapi->last_status_idx);
3567
3568 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
3569 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
3570 bnapi->last_status_idx);
3571 break;
3572 }
3573 }
3574
3575 return work_done;
3576 }
3577
3578 /* Called with rtnl_lock from vlan functions and also netif_tx_lock
3579 * from set_multicast.
3580 */
3581 static void
3582 bnx2_set_rx_mode(struct net_device *dev)
3583 {
3584 struct bnx2 *bp = netdev_priv(dev);
3585 u32 rx_mode, sort_mode;
3586 struct netdev_hw_addr *ha;
3587 int i;
3588
3589 if (!netif_running(dev))
3590 return;
3591
3592 spin_lock_bh(&bp->phy_lock);
3593
3594 rx_mode = bp->rx_mode & ~(BNX2_EMAC_RX_MODE_PROMISCUOUS |
3595 BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG);
3596 sort_mode = 1 | BNX2_RPM_SORT_USER0_BC_EN;
3597 if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
3598 (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
3599 rx_mode |= BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG;
3600 if (dev->flags & IFF_PROMISC) {
3601 /* Promiscuous mode. */
3602 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
3603 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
3604 BNX2_RPM_SORT_USER0_PROM_VLAN;
3605 }
3606 else if (dev->flags & IFF_ALLMULTI) {
3607 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
3608 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
3609 0xffffffff);
3610 }
3611 sort_mode |= BNX2_RPM_SORT_USER0_MC_EN;
3612 }
3613 else {
3614 /* Accept one or more multicast(s). */
3615 u32 mc_filter[NUM_MC_HASH_REGISTERS];
3616 u32 regidx;
3617 u32 bit;
3618 u32 crc;
3619
3620 memset(mc_filter, 0, 4 * NUM_MC_HASH_REGISTERS);
3621
3622 netdev_for_each_mc_addr(ha, dev) {
3623 crc = ether_crc_le(ETH_ALEN, ha->addr);
3624 bit = crc & 0xff;
3625 regidx = (bit & 0xe0) >> 5;
3626 bit &= 0x1f;
3627 mc_filter[regidx] |= (1 << bit);
3628 }
3629
3630 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
3631 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
3632 mc_filter[i]);
3633 }
3634
3635 sort_mode |= BNX2_RPM_SORT_USER0_MC_HSH_EN;
3636 }
3637
3638 if (netdev_uc_count(dev) > BNX2_MAX_UNICAST_ADDRESSES) {
3639 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
3640 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
3641 BNX2_RPM_SORT_USER0_PROM_VLAN;
3642 } else if (!(dev->flags & IFF_PROMISC)) {
3643 /* Add all entries into to the match filter list */
3644 i = 0;
3645 netdev_for_each_uc_addr(ha, dev) {
3646 bnx2_set_mac_addr(bp, ha->addr,
3647 i + BNX2_START_UNICAST_ADDRESS_INDEX);
3648 sort_mode |= (1 <<
3649 (i + BNX2_START_UNICAST_ADDRESS_INDEX));
3650 i++;
3651 }
3652
3653 }
3654
3655 if (rx_mode != bp->rx_mode) {
3656 bp->rx_mode = rx_mode;
3657 BNX2_WR(bp, BNX2_EMAC_RX_MODE, rx_mode);
3658 }
3659
3660 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
3661 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode);
3662 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode | BNX2_RPM_SORT_USER0_ENA);
3663
3664 spin_unlock_bh(&bp->phy_lock);
3665 }
3666
3667 static int
3668 check_fw_section(const struct firmware *fw,
3669 const struct bnx2_fw_file_section *section,
3670 u32 alignment, bool non_empty)
3671 {
3672 u32 offset = be32_to_cpu(section->offset);
3673 u32 len = be32_to_cpu(section->len);
3674
3675 if ((offset == 0 && len != 0) || offset >= fw->size || offset & 3)
3676 return -EINVAL;
3677 if ((non_empty && len == 0) || len > fw->size - offset ||
3678 len & (alignment - 1))
3679 return -EINVAL;
3680 return 0;
3681 }
3682
3683 static int
3684 check_mips_fw_entry(const struct firmware *fw,
3685 const struct bnx2_mips_fw_file_entry *entry)
3686 {
3687 if (check_fw_section(fw, &entry->text, 4, true) ||
3688 check_fw_section(fw, &entry->data, 4, false) ||
3689 check_fw_section(fw, &entry->rodata, 4, false))
3690 return -EINVAL;
3691 return 0;
3692 }
3693
3694 static void bnx2_release_firmware(struct bnx2 *bp)
3695 {
3696 if (bp->rv2p_firmware) {
3697 release_firmware(bp->mips_firmware);
3698 release_firmware(bp->rv2p_firmware);
3699 bp->rv2p_firmware = NULL;
3700 }
3701 }
3702
3703 static int bnx2_request_uncached_firmware(struct bnx2 *bp)
3704 {
3705 const char *mips_fw_file, *rv2p_fw_file;
3706 const struct bnx2_mips_fw_file *mips_fw;
3707 const struct bnx2_rv2p_fw_file *rv2p_fw;
3708 int rc;
3709
3710 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
3711 mips_fw_file = FW_MIPS_FILE_09;
3712 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A0) ||
3713 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A1))
3714 rv2p_fw_file = FW_RV2P_FILE_09_Ax;
3715 else
3716 rv2p_fw_file = FW_RV2P_FILE_09;
3717 } else {
3718 mips_fw_file = FW_MIPS_FILE_06;
3719 rv2p_fw_file = FW_RV2P_FILE_06;
3720 }
3721
3722 rc = request_firmware(&bp->mips_firmware, mips_fw_file, &bp->pdev->dev);
3723 if (rc) {
3724 pr_err("Can't load firmware file \"%s\"\n", mips_fw_file);
3725 goto out;
3726 }
3727
3728 rc = request_firmware(&bp->rv2p_firmware, rv2p_fw_file, &bp->pdev->dev);
3729 if (rc) {
3730 pr_err("Can't load firmware file \"%s\"\n", rv2p_fw_file);
3731 goto err_release_mips_firmware;
3732 }
3733 mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
3734 rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
3735 if (bp->mips_firmware->size < sizeof(*mips_fw) ||
3736 check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||
3737 check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||
3738 check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||
3739 check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||
3740 check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {
3741 pr_err("Firmware file \"%s\" is invalid\n", mips_fw_file);
3742 rc = -EINVAL;
3743 goto err_release_firmware;
3744 }
3745 if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||
3746 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||
3747 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {
3748 pr_err("Firmware file \"%s\" is invalid\n", rv2p_fw_file);
3749 rc = -EINVAL;
3750 goto err_release_firmware;
3751 }
3752 out:
3753 return rc;
3754
3755 err_release_firmware:
3756 release_firmware(bp->rv2p_firmware);
3757 bp->rv2p_firmware = NULL;
3758 err_release_mips_firmware:
3759 release_firmware(bp->mips_firmware);
3760 goto out;
3761 }
3762
3763 static int bnx2_request_firmware(struct bnx2 *bp)
3764 {
3765 return bp->rv2p_firmware ? 0 : bnx2_request_uncached_firmware(bp);
3766 }
3767
3768 static u32
3769 rv2p_fw_fixup(u32 rv2p_proc, int idx, u32 loc, u32 rv2p_code)
3770 {
3771 switch (idx) {
3772 case RV2P_P1_FIXUP_PAGE_SIZE_IDX:
3773 rv2p_code &= ~RV2P_BD_PAGE_SIZE_MSK;
3774 rv2p_code |= RV2P_BD_PAGE_SIZE;
3775 break;
3776 }
3777 return rv2p_code;
3778 }
3779
3780 static int
3781 load_rv2p_fw(struct bnx2 *bp, u32 rv2p_proc,
3782 const struct bnx2_rv2p_fw_file_entry *fw_entry)
3783 {
3784 u32 rv2p_code_len, file_offset;
3785 __be32 *rv2p_code;
3786 int i;
3787 u32 val, cmd, addr;
3788
3789 rv2p_code_len = be32_to_cpu(fw_entry->rv2p.len);
3790 file_offset = be32_to_cpu(fw_entry->rv2p.offset);
3791
3792 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
3793
3794 if (rv2p_proc == RV2P_PROC1) {
3795 cmd = BNX2_RV2P_PROC1_ADDR_CMD_RDWR;
3796 addr = BNX2_RV2P_PROC1_ADDR_CMD;
3797 } else {
3798 cmd = BNX2_RV2P_PROC2_ADDR_CMD_RDWR;
3799 addr = BNX2_RV2P_PROC2_ADDR_CMD;
3800 }
3801
3802 for (i = 0; i < rv2p_code_len; i += 8) {
3803 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, be32_to_cpu(*rv2p_code));
3804 rv2p_code++;
3805 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, be32_to_cpu(*rv2p_code));
3806 rv2p_code++;
3807
3808 val = (i / 8) | cmd;
3809 BNX2_WR(bp, addr, val);
3810 }
3811
3812 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
3813 for (i = 0; i < 8; i++) {
3814 u32 loc, code;
3815
3816 loc = be32_to_cpu(fw_entry->fixup[i]);
3817 if (loc && ((loc * 4) < rv2p_code_len)) {
3818 code = be32_to_cpu(*(rv2p_code + loc - 1));
3819 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, code);
3820 code = be32_to_cpu(*(rv2p_code + loc));
3821 code = rv2p_fw_fixup(rv2p_proc, i, loc, code);
3822 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, code);
3823
3824 val = (loc / 2) | cmd;
3825 BNX2_WR(bp, addr, val);
3826 }
3827 }
3828
3829 /* Reset the processor, un-stall is done later. */
3830 if (rv2p_proc == RV2P_PROC1) {
3831 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC1_RESET);
3832 }
3833 else {
3834 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC2_RESET);
3835 }
3836
3837 return 0;
3838 }
3839
3840 static int
3841 load_cpu_fw(struct bnx2 *bp, const struct cpu_reg *cpu_reg,
3842 const struct bnx2_mips_fw_file_entry *fw_entry)
3843 {
3844 u32 addr, len, file_offset;
3845 __be32 *data;
3846 u32 offset;
3847 u32 val;
3848
3849 /* Halt the CPU. */
3850 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
3851 val |= cpu_reg->mode_value_halt;
3852 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
3853 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
3854
3855 /* Load the Text area. */
3856 addr = be32_to_cpu(fw_entry->text.addr);
3857 len = be32_to_cpu(fw_entry->text.len);
3858 file_offset = be32_to_cpu(fw_entry->text.offset);
3859 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3860
3861 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3862 if (len) {
3863 int j;
3864
3865 for (j = 0; j < (len / 4); j++, offset += 4)
3866 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3867 }
3868
3869 /* Load the Data area. */
3870 addr = be32_to_cpu(fw_entry->data.addr);
3871 len = be32_to_cpu(fw_entry->data.len);
3872 file_offset = be32_to_cpu(fw_entry->data.offset);
3873 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3874
3875 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3876 if (len) {
3877 int j;
3878
3879 for (j = 0; j < (len / 4); j++, offset += 4)
3880 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3881 }
3882
3883 /* Load the Read-Only area. */
3884 addr = be32_to_cpu(fw_entry->rodata.addr);
3885 len = be32_to_cpu(fw_entry->rodata.len);
3886 file_offset = be32_to_cpu(fw_entry->rodata.offset);
3887 data = (__be32 *)(bp->mips_firmware->data + file_offset);
3888
3889 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
3890 if (len) {
3891 int j;
3892
3893 for (j = 0; j < (len / 4); j++, offset += 4)
3894 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
3895 }
3896
3897 /* Clear the pre-fetch instruction. */
3898 bnx2_reg_wr_ind(bp, cpu_reg->inst, 0);
3899
3900 val = be32_to_cpu(fw_entry->start_addr);
3901 bnx2_reg_wr_ind(bp, cpu_reg->pc, val);
3902
3903 /* Start the CPU. */
3904 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
3905 val &= ~cpu_reg->mode_value_halt;
3906 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
3907 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
3908
3909 return 0;
3910 }
3911
3912 static int
3913 bnx2_init_cpus(struct bnx2 *bp)
3914 {
3915 const struct bnx2_mips_fw_file *mips_fw =
3916 (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
3917 const struct bnx2_rv2p_fw_file *rv2p_fw =
3918 (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
3919 int rc;
3920
3921 /* Initialize the RV2P processor. */
3922 load_rv2p_fw(bp, RV2P_PROC1, &rv2p_fw->proc1);
3923 load_rv2p_fw(bp, RV2P_PROC2, &rv2p_fw->proc2);
3924
3925 /* Initialize the RX Processor. */
3926 rc = load_cpu_fw(bp, &cpu_reg_rxp, &mips_fw->rxp);
3927 if (rc)
3928 goto init_cpu_err;
3929
3930 /* Initialize the TX Processor. */
3931 rc = load_cpu_fw(bp, &cpu_reg_txp, &mips_fw->txp);
3932 if (rc)
3933 goto init_cpu_err;
3934
3935 /* Initialize the TX Patch-up Processor. */
3936 rc = load_cpu_fw(bp, &cpu_reg_tpat, &mips_fw->tpat);
3937 if (rc)
3938 goto init_cpu_err;
3939
3940 /* Initialize the Completion Processor. */
3941 rc = load_cpu_fw(bp, &cpu_reg_com, &mips_fw->com);
3942 if (rc)
3943 goto init_cpu_err;
3944
3945 /* Initialize the Command Processor. */
3946 rc = load_cpu_fw(bp, &cpu_reg_cp, &mips_fw->cp);
3947
3948 init_cpu_err:
3949 return rc;
3950 }
3951
3952 static void
3953 bnx2_setup_wol(struct bnx2 *bp)
3954 {
3955 int i;
3956 u32 val, wol_msg;
3957
3958 if (bp->wol) {
3959 u32 advertising;
3960 u8 autoneg;
3961
3962 autoneg = bp->autoneg;
3963 advertising = bp->advertising;
3964
3965 if (bp->phy_port == PORT_TP) {
3966 bp->autoneg = AUTONEG_SPEED;
3967 bp->advertising = ADVERTISED_10baseT_Half |
3968 ADVERTISED_10baseT_Full |
3969 ADVERTISED_100baseT_Half |
3970 ADVERTISED_100baseT_Full |
3971 ADVERTISED_Autoneg;
3972 }
3973
3974 spin_lock_bh(&bp->phy_lock);
3975 bnx2_setup_phy(bp, bp->phy_port);
3976 spin_unlock_bh(&bp->phy_lock);
3977
3978 bp->autoneg = autoneg;
3979 bp->advertising = advertising;
3980
3981 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
3982
3983 val = BNX2_RD(bp, BNX2_EMAC_MODE);
3984
3985 /* Enable port mode. */
3986 val &= ~BNX2_EMAC_MODE_PORT;
3987 val |= BNX2_EMAC_MODE_MPKT_RCVD |
3988 BNX2_EMAC_MODE_ACPI_RCVD |
3989 BNX2_EMAC_MODE_MPKT;
3990 if (bp->phy_port == PORT_TP) {
3991 val |= BNX2_EMAC_MODE_PORT_MII;
3992 } else {
3993 val |= BNX2_EMAC_MODE_PORT_GMII;
3994 if (bp->line_speed == SPEED_2500)
3995 val |= BNX2_EMAC_MODE_25G_MODE;
3996 }
3997
3998 BNX2_WR(bp, BNX2_EMAC_MODE, val);
3999
4000 /* receive all multicast */
4001 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
4002 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
4003 0xffffffff);
4004 }
4005 BNX2_WR(bp, BNX2_EMAC_RX_MODE, BNX2_EMAC_RX_MODE_SORT_MODE);
4006
4007 val = 1 | BNX2_RPM_SORT_USER0_BC_EN | BNX2_RPM_SORT_USER0_MC_EN;
4008 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
4009 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val);
4010 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val | BNX2_RPM_SORT_USER0_ENA);
4011
4012 /* Need to enable EMAC and RPM for WOL. */
4013 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
4014 BNX2_MISC_ENABLE_SET_BITS_RX_PARSER_MAC_ENABLE |
4015 BNX2_MISC_ENABLE_SET_BITS_TX_HEADER_Q_ENABLE |
4016 BNX2_MISC_ENABLE_SET_BITS_EMAC_ENABLE);
4017
4018 val = BNX2_RD(bp, BNX2_RPM_CONFIG);
4019 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
4020 BNX2_WR(bp, BNX2_RPM_CONFIG, val);
4021
4022 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
4023 } else {
4024 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
4025 }
4026
4027 if (!(bp->flags & BNX2_FLAG_NO_WOL)) {
4028 u32 val;
4029
4030 wol_msg |= BNX2_DRV_MSG_DATA_WAIT3;
4031 if (bp->fw_last_msg || BNX2_CHIP(bp) != BNX2_CHIP_5709) {
4032 bnx2_fw_sync(bp, wol_msg, 1, 0);
4033 return;
4034 }
4035 /* Tell firmware not to power down the PHY yet, otherwise
4036 * the chip will take a long time to respond to MMIO reads.
4037 */
4038 val = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);
4039 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE,
4040 val | BNX2_PORT_FEATURE_ASF_ENABLED);
4041 bnx2_fw_sync(bp, wol_msg, 1, 0);
4042 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE, val);
4043 }
4044
4045 }
4046
4047 static int
4048 bnx2_set_power_state(struct bnx2 *bp, pci_power_t state)
4049 {
4050 switch (state) {
4051 case PCI_D0: {
4052 u32 val;
4053
4054 pci_enable_wake(bp->pdev, PCI_D0, false);
4055 pci_set_power_state(bp->pdev, PCI_D0);
4056
4057 val = BNX2_RD(bp, BNX2_EMAC_MODE);
4058 val |= BNX2_EMAC_MODE_MPKT_RCVD | BNX2_EMAC_MODE_ACPI_RCVD;
4059 val &= ~BNX2_EMAC_MODE_MPKT;
4060 BNX2_WR(bp, BNX2_EMAC_MODE, val);
4061
4062 val = BNX2_RD(bp, BNX2_RPM_CONFIG);
4063 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
4064 BNX2_WR(bp, BNX2_RPM_CONFIG, val);
4065 break;
4066 }
4067 case PCI_D3hot: {
4068 bnx2_setup_wol(bp);
4069 pci_wake_from_d3(bp->pdev, bp->wol);
4070 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
4071 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)) {
4072
4073 if (bp->wol)
4074 pci_set_power_state(bp->pdev, PCI_D3hot);
4075 break;
4076
4077 }
4078 if (!bp->fw_last_msg && BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4079 u32 val;
4080
4081 /* Tell firmware not to power down the PHY yet,
4082 * otherwise the other port may not respond to
4083 * MMIO reads.
4084 */
4085 val = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
4086 val &= ~BNX2_CONDITION_PM_STATE_MASK;
4087 val |= BNX2_CONDITION_PM_STATE_UNPREP;
4088 bnx2_shmem_wr(bp, BNX2_BC_STATE_CONDITION, val);
4089 }
4090 pci_set_power_state(bp->pdev, PCI_D3hot);
4091
4092 /* No more memory access after this point until
4093 * device is brought back to D0.
4094 */
4095 break;
4096 }
4097 default:
4098 return -EINVAL;
4099 }
4100 return 0;
4101 }
4102
4103 static int
4104 bnx2_acquire_nvram_lock(struct bnx2 *bp)
4105 {
4106 u32 val;
4107 int j;
4108
4109 /* Request access to the flash interface. */
4110 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_SET2);
4111 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4112 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
4113 if (val & BNX2_NVM_SW_ARB_ARB_ARB2)
4114 break;
4115
4116 udelay(5);
4117 }
4118
4119 if (j >= NVRAM_TIMEOUT_COUNT)
4120 return -EBUSY;
4121
4122 return 0;
4123 }
4124
4125 static int
4126 bnx2_release_nvram_lock(struct bnx2 *bp)
4127 {
4128 int j;
4129 u32 val;
4130
4131 /* Relinquish nvram interface. */
4132 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_CLR2);
4133
4134 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4135 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
4136 if (!(val & BNX2_NVM_SW_ARB_ARB_ARB2))
4137 break;
4138
4139 udelay(5);
4140 }
4141
4142 if (j >= NVRAM_TIMEOUT_COUNT)
4143 return -EBUSY;
4144
4145 return 0;
4146 }
4147
4148
4149 static int
4150 bnx2_enable_nvram_write(struct bnx2 *bp)
4151 {
4152 u32 val;
4153
4154 val = BNX2_RD(bp, BNX2_MISC_CFG);
4155 BNX2_WR(bp, BNX2_MISC_CFG, val | BNX2_MISC_CFG_NVM_WR_EN_PCI);
4156
4157 if (bp->flash_info->flags & BNX2_NV_WREN) {
4158 int j;
4159
4160 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4161 BNX2_WR(bp, BNX2_NVM_COMMAND,
4162 BNX2_NVM_COMMAND_WREN | BNX2_NVM_COMMAND_DOIT);
4163
4164 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4165 udelay(5);
4166
4167 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4168 if (val & BNX2_NVM_COMMAND_DONE)
4169 break;
4170 }
4171
4172 if (j >= NVRAM_TIMEOUT_COUNT)
4173 return -EBUSY;
4174 }
4175 return 0;
4176 }
4177
4178 static void
4179 bnx2_disable_nvram_write(struct bnx2 *bp)
4180 {
4181 u32 val;
4182
4183 val = BNX2_RD(bp, BNX2_MISC_CFG);
4184 BNX2_WR(bp, BNX2_MISC_CFG, val & ~BNX2_MISC_CFG_NVM_WR_EN);
4185 }
4186
4187
4188 static void
4189 bnx2_enable_nvram_access(struct bnx2 *bp)
4190 {
4191 u32 val;
4192
4193 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
4194 /* Enable both bits, even on read. */
4195 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
4196 val | BNX2_NVM_ACCESS_ENABLE_EN | BNX2_NVM_ACCESS_ENABLE_WR_EN);
4197 }
4198
4199 static void
4200 bnx2_disable_nvram_access(struct bnx2 *bp)
4201 {
4202 u32 val;
4203
4204 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
4205 /* Disable both bits, even after read. */
4206 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
4207 val & ~(BNX2_NVM_ACCESS_ENABLE_EN |
4208 BNX2_NVM_ACCESS_ENABLE_WR_EN));
4209 }
4210
4211 static int
4212 bnx2_nvram_erase_page(struct bnx2 *bp, u32 offset)
4213 {
4214 u32 cmd;
4215 int j;
4216
4217 if (bp->flash_info->flags & BNX2_NV_BUFFERED)
4218 /* Buffered flash, no erase needed */
4219 return 0;
4220
4221 /* Build an erase command */
4222 cmd = BNX2_NVM_COMMAND_ERASE | BNX2_NVM_COMMAND_WR |
4223 BNX2_NVM_COMMAND_DOIT;
4224
4225 /* Need to clear DONE bit separately. */
4226 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4227
4228 /* Address of the NVRAM to read from. */
4229 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4230
4231 /* Issue an erase command. */
4232 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4233
4234 /* Wait for completion. */
4235 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4236 u32 val;
4237
4238 udelay(5);
4239
4240 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4241 if (val & BNX2_NVM_COMMAND_DONE)
4242 break;
4243 }
4244
4245 if (j >= NVRAM_TIMEOUT_COUNT)
4246 return -EBUSY;
4247
4248 return 0;
4249 }
4250
4251 static int
4252 bnx2_nvram_read_dword(struct bnx2 *bp, u32 offset, u8 *ret_val, u32 cmd_flags)
4253 {
4254 u32 cmd;
4255 int j;
4256
4257 /* Build the command word. */
4258 cmd = BNX2_NVM_COMMAND_DOIT | cmd_flags;
4259
4260 /* Calculate an offset of a buffered flash, not needed for 5709. */
4261 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
4262 offset = ((offset / bp->flash_info->page_size) <<
4263 bp->flash_info->page_bits) +
4264 (offset % bp->flash_info->page_size);
4265 }
4266
4267 /* Need to clear DONE bit separately. */
4268 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4269
4270 /* Address of the NVRAM to read from. */
4271 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4272
4273 /* Issue a read command. */
4274 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4275
4276 /* Wait for completion. */
4277 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4278 u32 val;
4279
4280 udelay(5);
4281
4282 val = BNX2_RD(bp, BNX2_NVM_COMMAND);
4283 if (val & BNX2_NVM_COMMAND_DONE) {
4284 __be32 v = cpu_to_be32(BNX2_RD(bp, BNX2_NVM_READ));
4285 memcpy(ret_val, &v, 4);
4286 break;
4287 }
4288 }
4289 if (j >= NVRAM_TIMEOUT_COUNT)
4290 return -EBUSY;
4291
4292 return 0;
4293 }
4294
4295
4296 static int
4297 bnx2_nvram_write_dword(struct bnx2 *bp, u32 offset, u8 *val, u32 cmd_flags)
4298 {
4299 u32 cmd;
4300 __be32 val32;
4301 int j;
4302
4303 /* Build the command word. */
4304 cmd = BNX2_NVM_COMMAND_DOIT | BNX2_NVM_COMMAND_WR | cmd_flags;
4305
4306 /* Calculate an offset of a buffered flash, not needed for 5709. */
4307 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
4308 offset = ((offset / bp->flash_info->page_size) <<
4309 bp->flash_info->page_bits) +
4310 (offset % bp->flash_info->page_size);
4311 }
4312
4313 /* Need to clear DONE bit separately. */
4314 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
4315
4316 memcpy(&val32, val, 4);
4317
4318 /* Write the data. */
4319 BNX2_WR(bp, BNX2_NVM_WRITE, be32_to_cpu(val32));
4320
4321 /* Address of the NVRAM to write to. */
4322 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
4323
4324 /* Issue the write command. */
4325 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
4326
4327 /* Wait for completion. */
4328 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
4329 udelay(5);
4330
4331 if (BNX2_RD(bp, BNX2_NVM_COMMAND) & BNX2_NVM_COMMAND_DONE)
4332 break;
4333 }
4334 if (j >= NVRAM_TIMEOUT_COUNT)
4335 return -EBUSY;
4336
4337 return 0;
4338 }
4339
4340 static int
4341 bnx2_init_nvram(struct bnx2 *bp)
4342 {
4343 u32 val;
4344 int j, entry_count, rc = 0;
4345 const struct flash_spec *flash;
4346
4347 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4348 bp->flash_info = &flash_5709;
4349 goto get_flash_size;
4350 }
4351
4352 /* Determine the selected interface. */
4353 val = BNX2_RD(bp, BNX2_NVM_CFG1);
4354
4355 entry_count = ARRAY_SIZE(flash_table);
4356
4357 if (val & 0x40000000) {
4358
4359 /* Flash interface has been reconfigured */
4360 for (j = 0, flash = &flash_table[0]; j < entry_count;
4361 j++, flash++) {
4362 if ((val & FLASH_BACKUP_STRAP_MASK) ==
4363 (flash->config1 & FLASH_BACKUP_STRAP_MASK)) {
4364 bp->flash_info = flash;
4365 break;
4366 }
4367 }
4368 }
4369 else {
4370 u32 mask;
4371 /* Not yet been reconfigured */
4372
4373 if (val & (1 << 23))
4374 mask = FLASH_BACKUP_STRAP_MASK;
4375 else
4376 mask = FLASH_STRAP_MASK;
4377
4378 for (j = 0, flash = &flash_table[0]; j < entry_count;
4379 j++, flash++) {
4380
4381 if ((val & mask) == (flash->strapping & mask)) {
4382 bp->flash_info = flash;
4383
4384 /* Request access to the flash interface. */
4385 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4386 return rc;
4387
4388 /* Enable access to flash interface */
4389 bnx2_enable_nvram_access(bp);
4390
4391 /* Reconfigure the flash interface */
4392 BNX2_WR(bp, BNX2_NVM_CFG1, flash->config1);
4393 BNX2_WR(bp, BNX2_NVM_CFG2, flash->config2);
4394 BNX2_WR(bp, BNX2_NVM_CFG3, flash->config3);
4395 BNX2_WR(bp, BNX2_NVM_WRITE1, flash->write1);
4396
4397 /* Disable access to flash interface */
4398 bnx2_disable_nvram_access(bp);
4399 bnx2_release_nvram_lock(bp);
4400
4401 break;
4402 }
4403 }
4404 } /* if (val & 0x40000000) */
4405
4406 if (j == entry_count) {
4407 bp->flash_info = NULL;
4408 pr_alert("Unknown flash/EEPROM type\n");
4409 return -ENODEV;
4410 }
4411
4412 get_flash_size:
4413 val = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG2);
4414 val &= BNX2_SHARED_HW_CFG2_NVM_SIZE_MASK;
4415 if (val)
4416 bp->flash_size = val;
4417 else
4418 bp->flash_size = bp->flash_info->total_size;
4419
4420 return rc;
4421 }
4422
4423 static int
4424 bnx2_nvram_read(struct bnx2 *bp, u32 offset, u8 *ret_buf,
4425 int buf_size)
4426 {
4427 int rc = 0;
4428 u32 cmd_flags, offset32, len32, extra;
4429
4430 if (buf_size == 0)
4431 return 0;
4432
4433 /* Request access to the flash interface. */
4434 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4435 return rc;
4436
4437 /* Enable access to flash interface */
4438 bnx2_enable_nvram_access(bp);
4439
4440 len32 = buf_size;
4441 offset32 = offset;
4442 extra = 0;
4443
4444 cmd_flags = 0;
4445
4446 if (offset32 & 3) {
4447 u8 buf[4];
4448 u32 pre_len;
4449
4450 offset32 &= ~3;
4451 pre_len = 4 - (offset & 3);
4452
4453 if (pre_len >= len32) {
4454 pre_len = len32;
4455 cmd_flags = BNX2_NVM_COMMAND_FIRST |
4456 BNX2_NVM_COMMAND_LAST;
4457 }
4458 else {
4459 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4460 }
4461
4462 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4463
4464 if (rc)
4465 return rc;
4466
4467 memcpy(ret_buf, buf + (offset & 3), pre_len);
4468
4469 offset32 += 4;
4470 ret_buf += pre_len;
4471 len32 -= pre_len;
4472 }
4473 if (len32 & 3) {
4474 extra = 4 - (len32 & 3);
4475 len32 = (len32 + 4) & ~3;
4476 }
4477
4478 if (len32 == 4) {
4479 u8 buf[4];
4480
4481 if (cmd_flags)
4482 cmd_flags = BNX2_NVM_COMMAND_LAST;
4483 else
4484 cmd_flags = BNX2_NVM_COMMAND_FIRST |
4485 BNX2_NVM_COMMAND_LAST;
4486
4487 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4488
4489 memcpy(ret_buf, buf, 4 - extra);
4490 }
4491 else if (len32 > 0) {
4492 u8 buf[4];
4493
4494 /* Read the first word. */
4495 if (cmd_flags)
4496 cmd_flags = 0;
4497 else
4498 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4499
4500 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, cmd_flags);
4501
4502 /* Advance to the next dword. */
4503 offset32 += 4;
4504 ret_buf += 4;
4505 len32 -= 4;
4506
4507 while (len32 > 4 && rc == 0) {
4508 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, 0);
4509
4510 /* Advance to the next dword. */
4511 offset32 += 4;
4512 ret_buf += 4;
4513 len32 -= 4;
4514 }
4515
4516 if (rc)
4517 return rc;
4518
4519 cmd_flags = BNX2_NVM_COMMAND_LAST;
4520 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
4521
4522 memcpy(ret_buf, buf, 4 - extra);
4523 }
4524
4525 /* Disable access to flash interface */
4526 bnx2_disable_nvram_access(bp);
4527
4528 bnx2_release_nvram_lock(bp);
4529
4530 return rc;
4531 }
4532
4533 static int
4534 bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf,
4535 int buf_size)
4536 {
4537 u32 written, offset32, len32;
4538 u8 *buf, start[4], end[4], *align_buf = NULL, *flash_buffer = NULL;
4539 int rc = 0;
4540 int align_start, align_end;
4541
4542 buf = data_buf;
4543 offset32 = offset;
4544 len32 = buf_size;
4545 align_start = align_end = 0;
4546
4547 if ((align_start = (offset32 & 3))) {
4548 offset32 &= ~3;
4549 len32 += align_start;
4550 if (len32 < 4)
4551 len32 = 4;
4552 if ((rc = bnx2_nvram_read(bp, offset32, start, 4)))
4553 return rc;
4554 }
4555
4556 if (len32 & 3) {
4557 align_end = 4 - (len32 & 3);
4558 len32 += align_end;
4559 if ((rc = bnx2_nvram_read(bp, offset32 + len32 - 4, end, 4)))
4560 return rc;
4561 }
4562
4563 if (align_start || align_end) {
4564 align_buf = kmalloc(len32, GFP_KERNEL);
4565 if (!align_buf)
4566 return -ENOMEM;
4567 if (align_start) {
4568 memcpy(align_buf, start, 4);
4569 }
4570 if (align_end) {
4571 memcpy(align_buf + len32 - 4, end, 4);
4572 }
4573 memcpy(align_buf + align_start, data_buf, buf_size);
4574 buf = align_buf;
4575 }
4576
4577 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4578 flash_buffer = kmalloc(264, GFP_KERNEL);
4579 if (!flash_buffer) {
4580 rc = -ENOMEM;
4581 goto nvram_write_end;
4582 }
4583 }
4584
4585 written = 0;
4586 while ((written < len32) && (rc == 0)) {
4587 u32 page_start, page_end, data_start, data_end;
4588 u32 addr, cmd_flags;
4589 int i;
4590
4591 /* Find the page_start addr */
4592 page_start = offset32 + written;
4593 page_start -= (page_start % bp->flash_info->page_size);
4594 /* Find the page_end addr */
4595 page_end = page_start + bp->flash_info->page_size;
4596 /* Find the data_start addr */
4597 data_start = (written == 0) ? offset32 : page_start;
4598 /* Find the data_end addr */
4599 data_end = (page_end > offset32 + len32) ?
4600 (offset32 + len32) : page_end;
4601
4602 /* Request access to the flash interface. */
4603 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
4604 goto nvram_write_end;
4605
4606 /* Enable access to flash interface */
4607 bnx2_enable_nvram_access(bp);
4608
4609 cmd_flags = BNX2_NVM_COMMAND_FIRST;
4610 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4611 int j;
4612
4613 /* Read the whole page into the buffer
4614 * (non-buffer flash only) */
4615 for (j = 0; j < bp->flash_info->page_size; j += 4) {
4616 if (j == (bp->flash_info->page_size - 4)) {
4617 cmd_flags |= BNX2_NVM_COMMAND_LAST;
4618 }
4619 rc = bnx2_nvram_read_dword(bp,
4620 page_start + j,
4621 &flash_buffer[j],
4622 cmd_flags);
4623
4624 if (rc)
4625 goto nvram_write_end;
4626
4627 cmd_flags = 0;
4628 }
4629 }
4630
4631 /* Enable writes to flash interface (unlock write-protect) */
4632 if ((rc = bnx2_enable_nvram_write(bp)) != 0)
4633 goto nvram_write_end;
4634
4635 /* Loop to write back the buffer data from page_start to
4636 * data_start */
4637 i = 0;
4638 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4639 /* Erase the page */
4640 if ((rc = bnx2_nvram_erase_page(bp, page_start)) != 0)
4641 goto nvram_write_end;
4642
4643 /* Re-enable the write again for the actual write */
4644 bnx2_enable_nvram_write(bp);
4645
4646 for (addr = page_start; addr < data_start;
4647 addr += 4, i += 4) {
4648
4649 rc = bnx2_nvram_write_dword(bp, addr,
4650 &flash_buffer[i], cmd_flags);
4651
4652 if (rc != 0)
4653 goto nvram_write_end;
4654
4655 cmd_flags = 0;
4656 }
4657 }
4658
4659 /* Loop to write the new data from data_start to data_end */
4660 for (addr = data_start; addr < data_end; addr += 4, i += 4) {
4661 if ((addr == page_end - 4) ||
4662 ((bp->flash_info->flags & BNX2_NV_BUFFERED) &&
4663 (addr == data_end - 4))) {
4664
4665 cmd_flags |= BNX2_NVM_COMMAND_LAST;
4666 }
4667 rc = bnx2_nvram_write_dword(bp, addr, buf,
4668 cmd_flags);
4669
4670 if (rc != 0)
4671 goto nvram_write_end;
4672
4673 cmd_flags = 0;
4674 buf += 4;
4675 }
4676
4677 /* Loop to write back the buffer data from data_end
4678 * to page_end */
4679 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
4680 for (addr = data_end; addr < page_end;
4681 addr += 4, i += 4) {
4682
4683 if (addr == page_end-4) {
4684 cmd_flags = BNX2_NVM_COMMAND_LAST;
4685 }
4686 rc = bnx2_nvram_write_dword(bp, addr,
4687 &flash_buffer[i], cmd_flags);
4688
4689 if (rc != 0)
4690 goto nvram_write_end;
4691
4692 cmd_flags = 0;
4693 }
4694 }
4695
4696 /* Disable writes to flash interface (lock write-protect) */
4697 bnx2_disable_nvram_write(bp);
4698
4699 /* Disable access to flash interface */
4700 bnx2_disable_nvram_access(bp);
4701 bnx2_release_nvram_lock(bp);
4702
4703 /* Increment written */
4704 written += data_end - data_start;
4705 }
4706
4707 nvram_write_end:
4708 kfree(flash_buffer);
4709 kfree(align_buf);
4710 return rc;
4711 }
4712
4713 static void
4714 bnx2_init_fw_cap(struct bnx2 *bp)
4715 {
4716 u32 val, sig = 0;
4717
4718 bp->phy_flags &= ~BNX2_PHY_FLAG_REMOTE_PHY_CAP;
4719 bp->flags &= ~BNX2_FLAG_CAN_KEEP_VLAN;
4720
4721 if (!(bp->flags & BNX2_FLAG_ASF_ENABLE))
4722 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
4723
4724 val = bnx2_shmem_rd(bp, BNX2_FW_CAP_MB);
4725 if ((val & BNX2_FW_CAP_SIGNATURE_MASK) != BNX2_FW_CAP_SIGNATURE)
4726 return;
4727
4728 if ((val & BNX2_FW_CAP_CAN_KEEP_VLAN) == BNX2_FW_CAP_CAN_KEEP_VLAN) {
4729 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
4730 sig |= BNX2_DRV_ACK_CAP_SIGNATURE | BNX2_FW_CAP_CAN_KEEP_VLAN;
4731 }
4732
4733 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
4734 (val & BNX2_FW_CAP_REMOTE_PHY_CAPABLE)) {
4735 u32 link;
4736
4737 bp->phy_flags |= BNX2_PHY_FLAG_REMOTE_PHY_CAP;
4738
4739 link = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
4740 if (link & BNX2_LINK_STATUS_SERDES_LINK)
4741 bp->phy_port = PORT_FIBRE;
4742 else
4743 bp->phy_port = PORT_TP;
4744
4745 sig |= BNX2_DRV_ACK_CAP_SIGNATURE |
4746 BNX2_FW_CAP_REMOTE_PHY_CAPABLE;
4747 }
4748
4749 if (netif_running(bp->dev) && sig)
4750 bnx2_shmem_wr(bp, BNX2_DRV_ACK_CAP_MB, sig);
4751 }
4752
4753 static void
4754 bnx2_setup_msix_tbl(struct bnx2 *bp)
4755 {
4756 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW_ADDR, BNX2_PCI_GRC_WINDOW_ADDR_SEP_WIN);
4757
4758 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW2_ADDR, BNX2_MSIX_TABLE_ADDR);
4759 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW3_ADDR, BNX2_MSIX_PBA_ADDR);
4760 }
4761
4762 static void
4763 bnx2_wait_dma_complete(struct bnx2 *bp)
4764 {
4765 u32 val;
4766 int i;
4767
4768 /*
4769 * Wait for the current PCI transaction to complete before
4770 * issuing a reset.
4771 */
4772 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||
4773 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {
4774 BNX2_WR(bp, BNX2_MISC_ENABLE_CLR_BITS,
4775 BNX2_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE |
4776 BNX2_MISC_ENABLE_CLR_BITS_DMA_ENGINE_ENABLE |
4777 BNX2_MISC_ENABLE_CLR_BITS_RX_DMA_ENABLE |
4778 BNX2_MISC_ENABLE_CLR_BITS_HOST_COALESCE_ENABLE);
4779 val = BNX2_RD(bp, BNX2_MISC_ENABLE_CLR_BITS);
4780 udelay(5);
4781 } else { /* 5709 */
4782 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
4783 val &= ~BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
4784 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
4785 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
4786
4787 for (i = 0; i < 100; i++) {
4788 msleep(1);
4789 val = BNX2_RD(bp, BNX2_PCICFG_DEVICE_CONTROL);
4790 if (!(val & BNX2_PCICFG_DEVICE_STATUS_NO_PEND))
4791 break;
4792 }
4793 }
4794
4795 return;
4796 }
4797
4798
4799 static int
4800 bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
4801 {
4802 u32 val;
4803 int i, rc = 0;
4804 u8 old_port;
4805
4806 /* Wait for the current PCI transaction to complete before
4807 * issuing a reset. */
4808 bnx2_wait_dma_complete(bp);
4809
4810 /* Wait for the firmware to tell us it is ok to issue a reset. */
4811 bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT0 | reset_code, 1, 1);
4812
4813 /* Deposit a driver reset signature so the firmware knows that
4814 * this is a soft reset. */
4815 bnx2_shmem_wr(bp, BNX2_DRV_RESET_SIGNATURE,
4816 BNX2_DRV_RESET_SIGNATURE_MAGIC);
4817
4818 /* Do a dummy read to force the chip to complete all current transaction
4819 * before we issue a reset. */
4820 val = BNX2_RD(bp, BNX2_MISC_ID);
4821
4822 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4823 BNX2_WR(bp, BNX2_MISC_COMMAND, BNX2_MISC_COMMAND_SW_RESET);
4824 BNX2_RD(bp, BNX2_MISC_COMMAND);
4825 udelay(5);
4826
4827 val = BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
4828 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
4829
4830 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
4831
4832 } else {
4833 val = BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4834 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
4835 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
4836
4837 /* Chip reset. */
4838 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
4839
4840 /* Reading back any register after chip reset will hang the
4841 * bus on 5706 A0 and A1. The msleep below provides plenty
4842 * of margin for write posting.
4843 */
4844 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
4845 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1))
4846 msleep(20);
4847
4848 /* Reset takes approximate 30 usec */
4849 for (i = 0; i < 10; i++) {
4850 val = BNX2_RD(bp, BNX2_PCICFG_MISC_CONFIG);
4851 if ((val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4852 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) == 0)
4853 break;
4854 udelay(10);
4855 }
4856
4857 if (val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
4858 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) {
4859 pr_err("Chip reset did not complete\n");
4860 return -EBUSY;
4861 }
4862 }
4863
4864 /* Make sure byte swapping is properly configured. */
4865 val = BNX2_RD(bp, BNX2_PCI_SWAP_DIAG0);
4866 if (val != 0x01020304) {
4867 pr_err("Chip not in correct endian mode\n");
4868 return -ENODEV;
4869 }
4870
4871 /* Wait for the firmware to finish its initialization. */
4872 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT1 | reset_code, 1, 0);
4873 if (rc)
4874 return rc;
4875
4876 spin_lock_bh(&bp->phy_lock);
4877 old_port = bp->phy_port;
4878 bnx2_init_fw_cap(bp);
4879 if ((bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) &&
4880 old_port != bp->phy_port)
4881 bnx2_set_default_remote_link(bp);
4882 spin_unlock_bh(&bp->phy_lock);
4883
4884 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
4885 /* Adjust the voltage regular to two steps lower. The default
4886 * of this register is 0x0000000e. */
4887 BNX2_WR(bp, BNX2_MISC_VREG_CONTROL, 0x000000fa);
4888
4889 /* Remove bad rbuf memory from the free pool. */
4890 rc = bnx2_alloc_bad_rbuf(bp);
4891 }
4892
4893 if (bp->flags & BNX2_FLAG_USING_MSIX) {
4894 bnx2_setup_msix_tbl(bp);
4895 /* Prevent MSIX table reads and write from timing out */
4896 BNX2_WR(bp, BNX2_MISC_ECO_HW_CTL,
4897 BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);
4898 }
4899
4900 return rc;
4901 }
4902
4903 static int
4904 bnx2_init_chip(struct bnx2 *bp)
4905 {
4906 u32 val, mtu;
4907 int rc, i;
4908
4909 /* Make sure the interrupt is not active. */
4910 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4911
4912 val = BNX2_DMA_CONFIG_DATA_BYTE_SWAP |
4913 BNX2_DMA_CONFIG_DATA_WORD_SWAP |
4914 #ifdef __BIG_ENDIAN
4915 BNX2_DMA_CONFIG_CNTL_BYTE_SWAP |
4916 #endif
4917 BNX2_DMA_CONFIG_CNTL_WORD_SWAP |
4918 DMA_READ_CHANS << 12 |
4919 DMA_WRITE_CHANS << 16;
4920
4921 val |= (0x2 << 20) | (1 << 11);
4922
4923 if ((bp->flags & BNX2_FLAG_PCIX) && (bp->bus_speed_mhz == 133))
4924 val |= (1 << 23);
4925
4926 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) &&
4927 (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0) &&
4928 !(bp->flags & BNX2_FLAG_PCIX))
4929 val |= BNX2_DMA_CONFIG_CNTL_PING_PONG_DMA;
4930
4931 BNX2_WR(bp, BNX2_DMA_CONFIG, val);
4932
4933 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
4934 val = BNX2_RD(bp, BNX2_TDMA_CONFIG);
4935 val |= BNX2_TDMA_CONFIG_ONE_DMA;
4936 BNX2_WR(bp, BNX2_TDMA_CONFIG, val);
4937 }
4938
4939 if (bp->flags & BNX2_FLAG_PCIX) {
4940 u16 val16;
4941
4942 pci_read_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
4943 &val16);
4944 pci_write_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
4945 val16 & ~PCI_X_CMD_ERO);
4946 }
4947
4948 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
4949 BNX2_MISC_ENABLE_SET_BITS_HOST_COALESCE_ENABLE |
4950 BNX2_MISC_ENABLE_STATUS_BITS_RX_V2P_ENABLE |
4951 BNX2_MISC_ENABLE_STATUS_BITS_CONTEXT_ENABLE);
4952
4953 /* Initialize context mapping and zero out the quick contexts. The
4954 * context block must have already been enabled. */
4955 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4956 rc = bnx2_init_5709_context(bp);
4957 if (rc)
4958 return rc;
4959 } else
4960 bnx2_init_context(bp);
4961
4962 if ((rc = bnx2_init_cpus(bp)) != 0)
4963 return rc;
4964
4965 bnx2_init_nvram(bp);
4966
4967 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
4968
4969 val = BNX2_RD(bp, BNX2_MQ_CONFIG);
4970 val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4971 val |= BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;
4972 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
4973 val |= BNX2_MQ_CONFIG_BIN_MQ_MODE;
4974 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)
4975 val |= BNX2_MQ_CONFIG_HALT_DIS;
4976 }
4977
4978 BNX2_WR(bp, BNX2_MQ_CONFIG, val);
4979
4980 val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);
4981 BNX2_WR(bp, BNX2_MQ_KNL_BYP_WIND_START, val);
4982 BNX2_WR(bp, BNX2_MQ_KNL_WIND_END, val);
4983
4984 val = (BNX2_PAGE_BITS - 8) << 24;
4985 BNX2_WR(bp, BNX2_RV2P_CONFIG, val);
4986
4987 /* Configure page size. */
4988 val = BNX2_RD(bp, BNX2_TBDR_CONFIG);
4989 val &= ~BNX2_TBDR_CONFIG_PAGE_SIZE;
4990 val |= (BNX2_PAGE_BITS - 8) << 24 | 0x40;
4991 BNX2_WR(bp, BNX2_TBDR_CONFIG, val);
4992
4993 val = bp->mac_addr[0] +
4994 (bp->mac_addr[1] << 8) +
4995 (bp->mac_addr[2] << 16) +
4996 bp->mac_addr[3] +
4997 (bp->mac_addr[4] << 8) +
4998 (bp->mac_addr[5] << 16);
4999 BNX2_WR(bp, BNX2_EMAC_BACKOFF_SEED, val);
5000
5001 /* Program the MTU. Also include 4 bytes for CRC32. */
5002 mtu = bp->dev->mtu;
5003 val = mtu + ETH_HLEN + ETH_FCS_LEN;
5004 if (val > (MAX_ETHERNET_PACKET_SIZE + ETH_HLEN + 4))
5005 val |= BNX2_EMAC_RX_MTU_SIZE_JUMBO_ENA;
5006 BNX2_WR(bp, BNX2_EMAC_RX_MTU_SIZE, val);
5007
5008 if (mtu < ETH_DATA_LEN)
5009 mtu = ETH_DATA_LEN;
5010
5011 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG, BNX2_RBUF_CONFIG_VAL(mtu));
5012 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG2, BNX2_RBUF_CONFIG2_VAL(mtu));
5013 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG3, BNX2_RBUF_CONFIG3_VAL(mtu));
5014
5015 memset(bp->bnx2_napi[0].status_blk.msi, 0, bp->status_stats_size);
5016 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
5017 bp->bnx2_napi[i].last_status_idx = 0;
5018
5019 bp->idle_chk_status_idx = 0xffff;
5020
5021 /* Set up how to generate a link change interrupt. */
5022 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
5023
5024 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_L,
5025 (u64) bp->status_blk_mapping & 0xffffffff);
5026 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_H, (u64) bp->status_blk_mapping >> 32);
5027
5028 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_L,
5029 (u64) bp->stats_blk_mapping & 0xffffffff);
5030 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_H,
5031 (u64) bp->stats_blk_mapping >> 32);
5032
5033 BNX2_WR(bp, BNX2_HC_TX_QUICK_CONS_TRIP,
5034 (bp->tx_quick_cons_trip_int << 16) | bp->tx_quick_cons_trip);
5035
5036 BNX2_WR(bp, BNX2_HC_RX_QUICK_CONS_TRIP,
5037 (bp->rx_quick_cons_trip_int << 16) | bp->rx_quick_cons_trip);
5038
5039 BNX2_WR(bp, BNX2_HC_COMP_PROD_TRIP,
5040 (bp->comp_prod_trip_int << 16) | bp->comp_prod_trip);
5041
5042 BNX2_WR(bp, BNX2_HC_TX_TICKS, (bp->tx_ticks_int << 16) | bp->tx_ticks);
5043
5044 BNX2_WR(bp, BNX2_HC_RX_TICKS, (bp->rx_ticks_int << 16) | bp->rx_ticks);
5045
5046 BNX2_WR(bp, BNX2_HC_COM_TICKS,
5047 (bp->com_ticks_int << 16) | bp->com_ticks);
5048
5049 BNX2_WR(bp, BNX2_HC_CMD_TICKS,
5050 (bp->cmd_ticks_int << 16) | bp->cmd_ticks);
5051
5052 if (bp->flags & BNX2_FLAG_BROKEN_STATS)
5053 BNX2_WR(bp, BNX2_HC_STATS_TICKS, 0);
5054 else
5055 BNX2_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks);
5056 BNX2_WR(bp, BNX2_HC_STAT_COLLECT_TICKS, 0xbb8); /* 3ms */
5057
5058 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)
5059 val = BNX2_HC_CONFIG_COLLECT_STATS;
5060 else {
5061 val = BNX2_HC_CONFIG_RX_TMR_MODE | BNX2_HC_CONFIG_TX_TMR_MODE |
5062 BNX2_HC_CONFIG_COLLECT_STATS;
5063 }
5064
5065 if (bp->flags & BNX2_FLAG_USING_MSIX) {
5066 BNX2_WR(bp, BNX2_HC_MSIX_BIT_VECTOR,
5067 BNX2_HC_MSIX_BIT_VECTOR_VAL);
5068
5069 val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B;
5070 }
5071
5072 if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI)
5073 val |= BNX2_HC_CONFIG_ONE_SHOT | BNX2_HC_CONFIG_USE_INT_PARAM;
5074
5075 BNX2_WR(bp, BNX2_HC_CONFIG, val);
5076
5077 if (bp->rx_ticks < 25)
5078 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 1);
5079 else
5080 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 0);
5081
5082 for (i = 1; i < bp->irq_nvecs; i++) {
5083 u32 base = ((i - 1) * BNX2_HC_SB_CONFIG_SIZE) +
5084 BNX2_HC_SB_CONFIG_1;
5085
5086 BNX2_WR(bp, base,
5087 BNX2_HC_SB_CONFIG_1_TX_TMR_MODE |
5088 BNX2_HC_SB_CONFIG_1_RX_TMR_MODE |
5089 BNX2_HC_SB_CONFIG_1_ONE_SHOT);
5090
5091 BNX2_WR(bp, base + BNX2_HC_TX_QUICK_CONS_TRIP_OFF,
5092 (bp->tx_quick_cons_trip_int << 16) |
5093 bp->tx_quick_cons_trip);
5094
5095 BNX2_WR(bp, base + BNX2_HC_TX_TICKS_OFF,
5096 (bp->tx_ticks_int << 16) | bp->tx_ticks);
5097
5098 BNX2_WR(bp, base + BNX2_HC_RX_QUICK_CONS_TRIP_OFF,
5099 (bp->rx_quick_cons_trip_int << 16) |
5100 bp->rx_quick_cons_trip);
5101
5102 BNX2_WR(bp, base + BNX2_HC_RX_TICKS_OFF,
5103 (bp->rx_ticks_int << 16) | bp->rx_ticks);
5104 }
5105
5106 /* Clear internal stats counters. */
5107 BNX2_WR(bp, BNX2_HC_COMMAND, BNX2_HC_COMMAND_CLR_STAT_NOW);
5108
5109 BNX2_WR(bp, BNX2_HC_ATTN_BITS_ENABLE, STATUS_ATTN_EVENTS);
5110
5111 /* Initialize the receive filter. */
5112 bnx2_set_rx_mode(bp->dev);
5113
5114 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5115 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
5116 val |= BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
5117 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
5118 }
5119 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT2 | BNX2_DRV_MSG_CODE_RESET,
5120 1, 0);
5121
5122 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS, BNX2_MISC_ENABLE_DEFAULT);
5123 BNX2_RD(bp, BNX2_MISC_ENABLE_SET_BITS);
5124
5125 udelay(20);
5126
5127 bp->hc_cmd = BNX2_RD(bp, BNX2_HC_COMMAND);
5128
5129 return rc;
5130 }
5131
5132 static void
5133 bnx2_clear_ring_states(struct bnx2 *bp)
5134 {
5135 struct bnx2_napi *bnapi;
5136 struct bnx2_tx_ring_info *txr;
5137 struct bnx2_rx_ring_info *rxr;
5138 int i;
5139
5140 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
5141 bnapi = &bp->bnx2_napi[i];
5142 txr = &bnapi->tx_ring;
5143 rxr = &bnapi->rx_ring;
5144
5145 txr->tx_cons = 0;
5146 txr->hw_tx_cons = 0;
5147 rxr->rx_prod_bseq = 0;
5148 rxr->rx_prod = 0;
5149 rxr->rx_cons = 0;
5150 rxr->rx_pg_prod = 0;
5151 rxr->rx_pg_cons = 0;
5152 }
5153 }
5154
5155 static void
5156 bnx2_init_tx_context(struct bnx2 *bp, u32 cid, struct bnx2_tx_ring_info *txr)
5157 {
5158 u32 val, offset0, offset1, offset2, offset3;
5159 u32 cid_addr = GET_CID_ADDR(cid);
5160
5161 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5162 offset0 = BNX2_L2CTX_TYPE_XI;
5163 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
5164 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
5165 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
5166 } else {
5167 offset0 = BNX2_L2CTX_TYPE;
5168 offset1 = BNX2_L2CTX_CMD_TYPE;
5169 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
5170 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
5171 }
5172 val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
5173 bnx2_ctx_wr(bp, cid_addr, offset0, val);
5174
5175 val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
5176 bnx2_ctx_wr(bp, cid_addr, offset1, val);
5177
5178 val = (u64) txr->tx_desc_mapping >> 32;
5179 bnx2_ctx_wr(bp, cid_addr, offset2, val);
5180
5181 val = (u64) txr->tx_desc_mapping & 0xffffffff;
5182 bnx2_ctx_wr(bp, cid_addr, offset3, val);
5183 }
5184
5185 static void
5186 bnx2_init_tx_ring(struct bnx2 *bp, int ring_num)
5187 {
5188 struct bnx2_tx_bd *txbd;
5189 u32 cid = TX_CID;
5190 struct bnx2_napi *bnapi;
5191 struct bnx2_tx_ring_info *txr;
5192
5193 bnapi = &bp->bnx2_napi[ring_num];
5194 txr = &bnapi->tx_ring;
5195
5196 if (ring_num == 0)
5197 cid = TX_CID;
5198 else
5199 cid = TX_TSS_CID + ring_num - 1;
5200
5201 bp->tx_wake_thresh = bp->tx_ring_size / 2;
5202
5203 txbd = &txr->tx_desc_ring[BNX2_MAX_TX_DESC_CNT];
5204
5205 txbd->tx_bd_haddr_hi = (u64) txr->tx_desc_mapping >> 32;
5206 txbd->tx_bd_haddr_lo = (u64) txr->tx_desc_mapping & 0xffffffff;
5207
5208 txr->tx_prod = 0;
5209 txr->tx_prod_bseq = 0;
5210
5211 txr->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;
5212 txr->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;
5213
5214 bnx2_init_tx_context(bp, cid, txr);
5215 }
5216
5217 static void
5218 bnx2_init_rxbd_rings(struct bnx2_rx_bd *rx_ring[], dma_addr_t dma[],
5219 u32 buf_size, int num_rings)
5220 {
5221 int i;
5222 struct bnx2_rx_bd *rxbd;
5223
5224 for (i = 0; i < num_rings; i++) {
5225 int j;
5226
5227 rxbd = &rx_ring[i][0];
5228 for (j = 0; j < BNX2_MAX_RX_DESC_CNT; j++, rxbd++) {
5229 rxbd->rx_bd_len = buf_size;
5230 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
5231 }
5232 if (i == (num_rings - 1))
5233 j = 0;
5234 else
5235 j = i + 1;
5236 rxbd->rx_bd_haddr_hi = (u64) dma[j] >> 32;
5237 rxbd->rx_bd_haddr_lo = (u64) dma[j] & 0xffffffff;
5238 }
5239 }
5240
5241 static void
5242 bnx2_init_rx_ring(struct bnx2 *bp, int ring_num)
5243 {
5244 int i;
5245 u16 prod, ring_prod;
5246 u32 cid, rx_cid_addr, val;
5247 struct bnx2_napi *bnapi = &bp->bnx2_napi[ring_num];
5248 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
5249
5250 if (ring_num == 0)
5251 cid = RX_CID;
5252 else
5253 cid = RX_RSS_CID + ring_num - 1;
5254
5255 rx_cid_addr = GET_CID_ADDR(cid);
5256
5257 bnx2_init_rxbd_rings(rxr->rx_desc_ring, rxr->rx_desc_mapping,
5258 bp->rx_buf_use_size, bp->rx_max_ring);
5259
5260 bnx2_init_rx_context(bp, cid);
5261
5262 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
5263 val = BNX2_RD(bp, BNX2_MQ_MAP_L2_5);
5264 BNX2_WR(bp, BNX2_MQ_MAP_L2_5, val | BNX2_MQ_MAP_L2_5_ARM);
5265 }
5266
5267 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, 0);
5268 if (bp->rx_pg_ring_size) {
5269 bnx2_init_rxbd_rings(rxr->rx_pg_desc_ring,
5270 rxr->rx_pg_desc_mapping,
5271 PAGE_SIZE, bp->rx_max_pg_ring);
5272 val = (bp->rx_buf_use_size << 16) | PAGE_SIZE;
5273 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, val);
5274 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_RBDC_KEY,
5275 BNX2_L2CTX_RBDC_JUMBO_KEY - ring_num);
5276
5277 val = (u64) rxr->rx_pg_desc_mapping[0] >> 32;
5278 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_HI, val);
5279
5280 val = (u64) rxr->rx_pg_desc_mapping[0] & 0xffffffff;
5281 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_LO, val);
5282
5283 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5284 BNX2_WR(bp, BNX2_MQ_MAP_L2_3, BNX2_MQ_MAP_L2_3_DEFAULT);
5285 }
5286
5287 val = (u64) rxr->rx_desc_mapping[0] >> 32;
5288 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
5289
5290 val = (u64) rxr->rx_desc_mapping[0] & 0xffffffff;
5291 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
5292
5293 ring_prod = prod = rxr->rx_pg_prod;
5294 for (i = 0; i < bp->rx_pg_ring_size; i++) {
5295 if (bnx2_alloc_rx_page(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
5296 netdev_warn(bp->dev, "init'ed rx page ring %d with %d/%d pages only\n",
5297 ring_num, i, bp->rx_pg_ring_size);
5298 break;
5299 }
5300 prod = BNX2_NEXT_RX_BD(prod);
5301 ring_prod = BNX2_RX_PG_RING_IDX(prod);
5302 }
5303 rxr->rx_pg_prod = prod;
5304
5305 ring_prod = prod = rxr->rx_prod;
5306 for (i = 0; i < bp->rx_ring_size; i++) {
5307 if (bnx2_alloc_rx_data(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
5308 netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d skbs only\n",
5309 ring_num, i, bp->rx_ring_size);
5310 break;
5311 }
5312 prod = BNX2_NEXT_RX_BD(prod);
5313 ring_prod = BNX2_RX_RING_IDX(prod);
5314 }
5315 rxr->rx_prod = prod;
5316
5317 rxr->rx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BDIDX;
5318 rxr->rx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BSEQ;
5319 rxr->rx_pg_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_PG_BDIDX;
5320
5321 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
5322 BNX2_WR16(bp, rxr->rx_bidx_addr, prod);
5323
5324 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
5325 }
5326
5327 static void
5328 bnx2_init_all_rings(struct bnx2 *bp)
5329 {
5330 int i;
5331 u32 val;
5332
5333 bnx2_clear_ring_states(bp);
5334
5335 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, 0);
5336 for (i = 0; i < bp->num_tx_rings; i++)
5337 bnx2_init_tx_ring(bp, i);
5338
5339 if (bp->num_tx_rings > 1)
5340 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) |
5341 (TX_TSS_CID << 7));
5342
5343 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, 0);
5344 bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, 0);
5345
5346 for (i = 0; i < bp->num_rx_rings; i++)
5347 bnx2_init_rx_ring(bp, i);
5348
5349 if (bp->num_rx_rings > 1) {
5350 u32 tbl_32 = 0;
5351
5352 for (i = 0; i < BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES; i++) {
5353 int shift = (i % 8) << 2;
5354
5355 tbl_32 |= (i % (bp->num_rx_rings - 1)) << shift;
5356 if ((i % 8) == 7) {
5357 BNX2_WR(bp, BNX2_RLUP_RSS_DATA, tbl_32);
5358 BNX2_WR(bp, BNX2_RLUP_RSS_COMMAND, (i >> 3) |
5359 BNX2_RLUP_RSS_COMMAND_RSS_WRITE_MASK |
5360 BNX2_RLUP_RSS_COMMAND_WRITE |
5361 BNX2_RLUP_RSS_COMMAND_HASH_MASK);
5362 tbl_32 = 0;
5363 }
5364 }
5365
5366 val = BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI |
5367 BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI;
5368
5369 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, val);
5370
5371 }
5372 }
5373
5374 static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size)
5375 {
5376 u32 max, num_rings = 1;
5377
5378 while (ring_size > BNX2_MAX_RX_DESC_CNT) {
5379 ring_size -= BNX2_MAX_RX_DESC_CNT;
5380 num_rings++;
5381 }
5382 /* round to next power of 2 */
5383 max = max_size;
5384 while ((max & num_rings) == 0)
5385 max >>= 1;
5386
5387 if (num_rings != max)
5388 max <<= 1;
5389
5390 return max;
5391 }
5392
5393 static void
5394 bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)
5395 {
5396 u32 rx_size, rx_space, jumbo_size;
5397
5398 /* 8 for CRC and VLAN */
5399 rx_size = bp->dev->mtu + ETH_HLEN + BNX2_RX_OFFSET + 8;
5400
5401 rx_space = SKB_DATA_ALIGN(rx_size + BNX2_RX_ALIGN) + NET_SKB_PAD +
5402 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
5403
5404 bp->rx_copy_thresh = BNX2_RX_COPY_THRESH;
5405 bp->rx_pg_ring_size = 0;
5406 bp->rx_max_pg_ring = 0;
5407 bp->rx_max_pg_ring_idx = 0;
5408 if ((rx_space > PAGE_SIZE) && !(bp->flags & BNX2_FLAG_JUMBO_BROKEN)) {
5409 int pages = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
5410
5411 jumbo_size = size * pages;
5412 if (jumbo_size > BNX2_MAX_TOTAL_RX_PG_DESC_CNT)
5413 jumbo_size = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;
5414
5415 bp->rx_pg_ring_size = jumbo_size;
5416 bp->rx_max_pg_ring = bnx2_find_max_ring(jumbo_size,
5417 BNX2_MAX_RX_PG_RINGS);
5418 bp->rx_max_pg_ring_idx =
5419 (bp->rx_max_pg_ring * BNX2_RX_DESC_CNT) - 1;
5420 rx_size = BNX2_RX_COPY_THRESH + BNX2_RX_OFFSET;
5421 bp->rx_copy_thresh = 0;
5422 }
5423
5424 bp->rx_buf_use_size = rx_size;
5425 /* hw alignment + build_skb() overhead*/
5426 bp->rx_buf_size = SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) +
5427 NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
5428 bp->rx_jumbo_thresh = rx_size - BNX2_RX_OFFSET;
5429 bp->rx_ring_size = size;
5430 bp->rx_max_ring = bnx2_find_max_ring(size, BNX2_MAX_RX_RINGS);
5431 bp->rx_max_ring_idx = (bp->rx_max_ring * BNX2_RX_DESC_CNT) - 1;
5432 }
5433
5434 static void
5435 bnx2_free_tx_skbs(struct bnx2 *bp)
5436 {
5437 int i;
5438
5439 for (i = 0; i < bp->num_tx_rings; i++) {
5440 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
5441 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
5442 int j;
5443
5444 if (!txr->tx_buf_ring)
5445 continue;
5446
5447 for (j = 0; j < BNX2_TX_DESC_CNT; ) {
5448 struct bnx2_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
5449 struct sk_buff *skb = tx_buf->skb;
5450 int k, last;
5451
5452 if (!skb) {
5453 j = BNX2_NEXT_TX_BD(j);
5454 continue;
5455 }
5456
5457 dma_unmap_single(&bp->pdev->dev,
5458 dma_unmap_addr(tx_buf, mapping),
5459 skb_headlen(skb),
5460 PCI_DMA_TODEVICE);
5461
5462 tx_buf->skb = NULL;
5463
5464 last = tx_buf->nr_frags;
5465 j = BNX2_NEXT_TX_BD(j);
5466 for (k = 0; k < last; k++, j = BNX2_NEXT_TX_BD(j)) {
5467 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(j)];
5468 dma_unmap_page(&bp->pdev->dev,
5469 dma_unmap_addr(tx_buf, mapping),
5470 skb_frag_size(&skb_shinfo(skb)->frags[k]),
5471 PCI_DMA_TODEVICE);
5472 }
5473 dev_kfree_skb(skb);
5474 }
5475 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
5476 }
5477 }
5478
5479 static void
5480 bnx2_free_rx_skbs(struct bnx2 *bp)
5481 {
5482 int i;
5483
5484 for (i = 0; i < bp->num_rx_rings; i++) {
5485 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
5486 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
5487 int j;
5488
5489 if (!rxr->rx_buf_ring)
5490 return;
5491
5492 for (j = 0; j < bp->rx_max_ring_idx; j++) {
5493 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[j];
5494 u8 *data = rx_buf->data;
5495
5496 if (!data)
5497 continue;
5498
5499 dma_unmap_single(&bp->pdev->dev,
5500 dma_unmap_addr(rx_buf, mapping),
5501 bp->rx_buf_use_size,
5502 PCI_DMA_FROMDEVICE);
5503
5504 rx_buf->data = NULL;
5505
5506 kfree(data);
5507 }
5508 for (j = 0; j < bp->rx_max_pg_ring_idx; j++)
5509 bnx2_free_rx_page(bp, rxr, j);
5510 }
5511 }
5512
5513 static void
5514 bnx2_free_skbs(struct bnx2 *bp)
5515 {
5516 bnx2_free_tx_skbs(bp);
5517 bnx2_free_rx_skbs(bp);
5518 }
5519
5520 static int
5521 bnx2_reset_nic(struct bnx2 *bp, u32 reset_code)
5522 {
5523 int rc;
5524
5525 rc = bnx2_reset_chip(bp, reset_code);
5526 bnx2_free_skbs(bp);
5527 if (rc)
5528 return rc;
5529
5530 if ((rc = bnx2_init_chip(bp)) != 0)
5531 return rc;
5532
5533 bnx2_init_all_rings(bp);
5534 return 0;
5535 }
5536
5537 static int
5538 bnx2_init_nic(struct bnx2 *bp, int reset_phy)
5539 {
5540 int rc;
5541
5542 if ((rc = bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET)) != 0)
5543 return rc;
5544
5545 spin_lock_bh(&bp->phy_lock);
5546 bnx2_init_phy(bp, reset_phy);
5547 bnx2_set_link(bp);
5548 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
5549 bnx2_remote_phy_event(bp);
5550 spin_unlock_bh(&bp->phy_lock);
5551 return 0;
5552 }
5553
5554 static int
5555 bnx2_shutdown_chip(struct bnx2 *bp)
5556 {
5557 u32 reset_code;
5558
5559 if (bp->flags & BNX2_FLAG_NO_WOL)
5560 reset_code = BNX2_DRV_MSG_CODE_UNLOAD_LNK_DN;
5561 else if (bp->wol)
5562 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
5563 else
5564 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
5565
5566 return bnx2_reset_chip(bp, reset_code);
5567 }
5568
5569 static int
5570 bnx2_test_registers(struct bnx2 *bp)
5571 {
5572 int ret;
5573 int i, is_5709;
5574 static const struct {
5575 u16 offset;
5576 u16 flags;
5577 #define BNX2_FL_NOT_5709 1
5578 u32 rw_mask;
5579 u32 ro_mask;
5580 } reg_tbl[] = {
5581 { 0x006c, 0, 0x00000000, 0x0000003f },
5582 { 0x0090, 0, 0xffffffff, 0x00000000 },
5583 { 0x0094, 0, 0x00000000, 0x00000000 },
5584
5585 { 0x0404, BNX2_FL_NOT_5709, 0x00003f00, 0x00000000 },
5586 { 0x0418, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5587 { 0x041c, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5588 { 0x0420, BNX2_FL_NOT_5709, 0x00000000, 0x80ffffff },
5589 { 0x0424, BNX2_FL_NOT_5709, 0x00000000, 0x00000000 },
5590 { 0x0428, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
5591 { 0x0450, BNX2_FL_NOT_5709, 0x00000000, 0x0000ffff },
5592 { 0x0454, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5593 { 0x0458, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5594
5595 { 0x0808, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5596 { 0x0854, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
5597 { 0x0868, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5598 { 0x086c, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5599 { 0x0870, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5600 { 0x0874, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
5601
5602 { 0x0c00, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
5603 { 0x0c04, BNX2_FL_NOT_5709, 0x00000000, 0x03ff0001 },
5604 { 0x0c08, BNX2_FL_NOT_5709, 0x0f0ff073, 0x00000000 },
5605
5606 { 0x1000, 0, 0x00000000, 0x00000001 },
5607 { 0x1004, BNX2_FL_NOT_5709, 0x00000000, 0x000f0001 },
5608
5609 { 0x1408, 0, 0x01c00800, 0x00000000 },
5610 { 0x149c, 0, 0x8000ffff, 0x00000000 },
5611 { 0x14a8, 0, 0x00000000, 0x000001ff },
5612 { 0x14ac, 0, 0x0fffffff, 0x10000000 },
5613 { 0x14b0, 0, 0x00000002, 0x00000001 },
5614 { 0x14b8, 0, 0x00000000, 0x00000000 },
5615 { 0x14c0, 0, 0x00000000, 0x00000009 },
5616 { 0x14c4, 0, 0x00003fff, 0x00000000 },
5617 { 0x14cc, 0, 0x00000000, 0x00000001 },
5618 { 0x14d0, 0, 0xffffffff, 0x00000000 },
5619
5620 { 0x1800, 0, 0x00000000, 0x00000001 },
5621 { 0x1804, 0, 0x00000000, 0x00000003 },
5622
5623 { 0x2800, 0, 0x00000000, 0x00000001 },
5624 { 0x2804, 0, 0x00000000, 0x00003f01 },
5625 { 0x2808, 0, 0x0f3f3f03, 0x00000000 },
5626 { 0x2810, 0, 0xffff0000, 0x00000000 },
5627 { 0x2814, 0, 0xffff0000, 0x00000000 },
5628 { 0x2818, 0, 0xffff0000, 0x00000000 },
5629 { 0x281c, 0, 0xffff0000, 0x00000000 },
5630 { 0x2834, 0, 0xffffffff, 0x00000000 },
5631 { 0x2840, 0, 0x00000000, 0xffffffff },
5632 { 0x2844, 0, 0x00000000, 0xffffffff },
5633 { 0x2848, 0, 0xffffffff, 0x00000000 },
5634 { 0x284c, 0, 0xf800f800, 0x07ff07ff },
5635
5636 { 0x2c00, 0, 0x00000000, 0x00000011 },
5637 { 0x2c04, 0, 0x00000000, 0x00030007 },
5638
5639 { 0x3c00, 0, 0x00000000, 0x00000001 },
5640 { 0x3c04, 0, 0x00000000, 0x00070000 },
5641 { 0x3c08, 0, 0x00007f71, 0x07f00000 },
5642 { 0x3c0c, 0, 0x1f3ffffc, 0x00000000 },
5643 { 0x3c10, 0, 0xffffffff, 0x00000000 },
5644 { 0x3c14, 0, 0x00000000, 0xffffffff },
5645 { 0x3c18, 0, 0x00000000, 0xffffffff },
5646 { 0x3c1c, 0, 0xfffff000, 0x00000000 },
5647 { 0x3c20, 0, 0xffffff00, 0x00000000 },
5648
5649 { 0x5004, 0, 0x00000000, 0x0000007f },
5650 { 0x5008, 0, 0x0f0007ff, 0x00000000 },
5651
5652 { 0x5c00, 0, 0x00000000, 0x00000001 },
5653 { 0x5c04, 0, 0x00000000, 0x0003000f },
5654 { 0x5c08, 0, 0x00000003, 0x00000000 },
5655 { 0x5c0c, 0, 0x0000fff8, 0x00000000 },
5656 { 0x5c10, 0, 0x00000000, 0xffffffff },
5657 { 0x5c80, 0, 0x00000000, 0x0f7113f1 },
5658 { 0x5c84, 0, 0x00000000, 0x0000f333 },
5659 { 0x5c88, 0, 0x00000000, 0x00077373 },
5660 { 0x5c8c, 0, 0x00000000, 0x0007f737 },
5661
5662 { 0x6808, 0, 0x0000ff7f, 0x00000000 },
5663 { 0x680c, 0, 0xffffffff, 0x00000000 },
5664 { 0x6810, 0, 0xffffffff, 0x00000000 },
5665 { 0x6814, 0, 0xffffffff, 0x00000000 },
5666 { 0x6818, 0, 0xffffffff, 0x00000000 },
5667 { 0x681c, 0, 0xffffffff, 0x00000000 },
5668 { 0x6820, 0, 0x00ff00ff, 0x00000000 },
5669 { 0x6824, 0, 0x00ff00ff, 0x00000000 },
5670 { 0x6828, 0, 0x00ff00ff, 0x00000000 },
5671 { 0x682c, 0, 0x03ff03ff, 0x00000000 },
5672 { 0x6830, 0, 0x03ff03ff, 0x00000000 },
5673 { 0x6834, 0, 0x03ff03ff, 0x00000000 },
5674 { 0x6838, 0, 0x03ff03ff, 0x00000000 },
5675 { 0x683c, 0, 0x0000ffff, 0x00000000 },
5676 { 0x6840, 0, 0x00000ff0, 0x00000000 },
5677 { 0x6844, 0, 0x00ffff00, 0x00000000 },
5678 { 0x684c, 0, 0xffffffff, 0x00000000 },
5679 { 0x6850, 0, 0x7f7f7f7f, 0x00000000 },
5680 { 0x6854, 0, 0x7f7f7f7f, 0x00000000 },
5681 { 0x6858, 0, 0x7f7f7f7f, 0x00000000 },
5682 { 0x685c, 0, 0x7f7f7f7f, 0x00000000 },
5683 { 0x6908, 0, 0x00000000, 0x0001ff0f },
5684 { 0x690c, 0, 0x00000000, 0x0ffe00f0 },
5685
5686 { 0xffff, 0, 0x00000000, 0x00000000 },
5687 };
5688
5689 ret = 0;
5690 is_5709 = 0;
5691 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5692 is_5709 = 1;
5693
5694 for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
5695 u32 offset, rw_mask, ro_mask, save_val, val;
5696 u16 flags = reg_tbl[i].flags;
5697
5698 if (is_5709 && (flags & BNX2_FL_NOT_5709))
5699 continue;
5700
5701 offset = (u32) reg_tbl[i].offset;
5702 rw_mask = reg_tbl[i].rw_mask;
5703 ro_mask = reg_tbl[i].ro_mask;
5704
5705 save_val = readl(bp->regview + offset);
5706
5707 writel(0, bp->regview + offset);
5708
5709 val = readl(bp->regview + offset);
5710 if ((val & rw_mask) != 0) {
5711 goto reg_test_err;
5712 }
5713
5714 if ((val & ro_mask) != (save_val & ro_mask)) {
5715 goto reg_test_err;
5716 }
5717
5718 writel(0xffffffff, bp->regview + offset);
5719
5720 val = readl(bp->regview + offset);
5721 if ((val & rw_mask) != rw_mask) {
5722 goto reg_test_err;
5723 }
5724
5725 if ((val & ro_mask) != (save_val & ro_mask)) {
5726 goto reg_test_err;
5727 }
5728
5729 writel(save_val, bp->regview + offset);
5730 continue;
5731
5732 reg_test_err:
5733 writel(save_val, bp->regview + offset);
5734 ret = -ENODEV;
5735 break;
5736 }
5737 return ret;
5738 }
5739
5740 static int
5741 bnx2_do_mem_test(struct bnx2 *bp, u32 start, u32 size)
5742 {
5743 static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0x55555555,
5744 0xaaaaaaaa , 0xaa55aa55, 0x55aa55aa };
5745 int i;
5746
5747 for (i = 0; i < sizeof(test_pattern) / 4; i++) {
5748 u32 offset;
5749
5750 for (offset = 0; offset < size; offset += 4) {
5751
5752 bnx2_reg_wr_ind(bp, start + offset, test_pattern[i]);
5753
5754 if (bnx2_reg_rd_ind(bp, start + offset) !=
5755 test_pattern[i]) {
5756 return -ENODEV;
5757 }
5758 }
5759 }
5760 return 0;
5761 }
5762
5763 static int
5764 bnx2_test_memory(struct bnx2 *bp)
5765 {
5766 int ret = 0;
5767 int i;
5768 static struct mem_entry {
5769 u32 offset;
5770 u32 len;
5771 } mem_tbl_5706[] = {
5772 { 0x60000, 0x4000 },
5773 { 0xa0000, 0x3000 },
5774 { 0xe0000, 0x4000 },
5775 { 0x120000, 0x4000 },
5776 { 0x1a0000, 0x4000 },
5777 { 0x160000, 0x4000 },
5778 { 0xffffffff, 0 },
5779 },
5780 mem_tbl_5709[] = {
5781 { 0x60000, 0x4000 },
5782 { 0xa0000, 0x3000 },
5783 { 0xe0000, 0x4000 },
5784 { 0x120000, 0x4000 },
5785 { 0x1a0000, 0x4000 },
5786 { 0xffffffff, 0 },
5787 };
5788 struct mem_entry *mem_tbl;
5789
5790 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
5791 mem_tbl = mem_tbl_5709;
5792 else
5793 mem_tbl = mem_tbl_5706;
5794
5795 for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
5796 if ((ret = bnx2_do_mem_test(bp, mem_tbl[i].offset,
5797 mem_tbl[i].len)) != 0) {
5798 return ret;
5799 }
5800 }
5801
5802 return ret;
5803 }
5804
5805 #define BNX2_MAC_LOOPBACK 0
5806 #define BNX2_PHY_LOOPBACK 1
5807
5808 static int
5809 bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
5810 {
5811 unsigned int pkt_size, num_pkts, i;
5812 struct sk_buff *skb;
5813 u8 *data;
5814 unsigned char *packet;
5815 u16 rx_start_idx, rx_idx;
5816 dma_addr_t map;
5817 struct bnx2_tx_bd *txbd;
5818 struct bnx2_sw_bd *rx_buf;
5819 struct l2_fhdr *rx_hdr;
5820 int ret = -ENODEV;
5821 struct bnx2_napi *bnapi = &bp->bnx2_napi[0], *tx_napi;
5822 struct bnx2_tx_ring_info *txr;
5823 struct bnx2_rx_ring_info *rxr;
5824
5825 tx_napi = bnapi;
5826
5827 txr = &tx_napi->tx_ring;
5828 rxr = &bnapi->rx_ring;
5829 if (loopback_mode == BNX2_MAC_LOOPBACK) {
5830 bp->loopback = MAC_LOOPBACK;
5831 bnx2_set_mac_loopback(bp);
5832 }
5833 else if (loopback_mode == BNX2_PHY_LOOPBACK) {
5834 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
5835 return 0;
5836
5837 bp->loopback = PHY_LOOPBACK;
5838 bnx2_set_phy_loopback(bp);
5839 }
5840 else
5841 return -EINVAL;
5842
5843 pkt_size = min(bp->dev->mtu + ETH_HLEN, bp->rx_jumbo_thresh - 4);
5844 skb = netdev_alloc_skb(bp->dev, pkt_size);
5845 if (!skb)
5846 return -ENOMEM;
5847 packet = skb_put(skb, pkt_size);
5848 memcpy(packet, bp->dev->dev_addr, ETH_ALEN);
5849 memset(packet + ETH_ALEN, 0x0, 8);
5850 for (i = 14; i < pkt_size; i++)
5851 packet[i] = (unsigned char) (i & 0xff);
5852
5853 map = dma_map_single(&bp->pdev->dev, skb->data, pkt_size,
5854 PCI_DMA_TODEVICE);
5855 if (dma_mapping_error(&bp->pdev->dev, map)) {
5856 dev_kfree_skb(skb);
5857 return -EIO;
5858 }
5859
5860 BNX2_WR(bp, BNX2_HC_COMMAND,
5861 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
5862
5863 BNX2_RD(bp, BNX2_HC_COMMAND);
5864
5865 udelay(5);
5866 rx_start_idx = bnx2_get_hw_rx_cons(bnapi);
5867
5868 num_pkts = 0;
5869
5870 txbd = &txr->tx_desc_ring[BNX2_TX_RING_IDX(txr->tx_prod)];
5871
5872 txbd->tx_bd_haddr_hi = (u64) map >> 32;
5873 txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;
5874 txbd->tx_bd_mss_nbytes = pkt_size;
5875 txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;
5876
5877 num_pkts++;
5878 txr->tx_prod = BNX2_NEXT_TX_BD(txr->tx_prod);
5879 txr->tx_prod_bseq += pkt_size;
5880
5881 BNX2_WR16(bp, txr->tx_bidx_addr, txr->tx_prod);
5882 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
5883
5884 udelay(100);
5885
5886 BNX2_WR(bp, BNX2_HC_COMMAND,
5887 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
5888
5889 BNX2_RD(bp, BNX2_HC_COMMAND);
5890
5891 udelay(5);
5892
5893 dma_unmap_single(&bp->pdev->dev, map, pkt_size, PCI_DMA_TODEVICE);
5894 dev_kfree_skb(skb);
5895
5896 if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)
5897 goto loopback_test_done;
5898
5899 rx_idx = bnx2_get_hw_rx_cons(bnapi);
5900 if (rx_idx != rx_start_idx + num_pkts) {
5901 goto loopback_test_done;
5902 }
5903
5904 rx_buf = &rxr->rx_buf_ring[rx_start_idx];
5905 data = rx_buf->data;
5906
5907 rx_hdr = get_l2_fhdr(data);
5908 data = (u8 *)rx_hdr + BNX2_RX_OFFSET;
5909
5910 dma_sync_single_for_cpu(&bp->pdev->dev,
5911 dma_unmap_addr(rx_buf, mapping),
5912 bp->rx_buf_use_size, PCI_DMA_FROMDEVICE);
5913
5914 if (rx_hdr->l2_fhdr_status &
5915 (L2_FHDR_ERRORS_BAD_CRC |
5916 L2_FHDR_ERRORS_PHY_DECODE |
5917 L2_FHDR_ERRORS_ALIGNMENT |
5918 L2_FHDR_ERRORS_TOO_SHORT |
5919 L2_FHDR_ERRORS_GIANT_FRAME)) {
5920
5921 goto loopback_test_done;
5922 }
5923
5924 if ((rx_hdr->l2_fhdr_pkt_len - 4) != pkt_size) {
5925 goto loopback_test_done;
5926 }
5927
5928 for (i = 14; i < pkt_size; i++) {
5929 if (*(data + i) != (unsigned char) (i & 0xff)) {
5930 goto loopback_test_done;
5931 }
5932 }
5933
5934 ret = 0;
5935
5936 loopback_test_done:
5937 bp->loopback = 0;
5938 return ret;
5939 }
5940
5941 #define BNX2_MAC_LOOPBACK_FAILED 1
5942 #define BNX2_PHY_LOOPBACK_FAILED 2
5943 #define BNX2_LOOPBACK_FAILED (BNX2_MAC_LOOPBACK_FAILED | \
5944 BNX2_PHY_LOOPBACK_FAILED)
5945
5946 static int
5947 bnx2_test_loopback(struct bnx2 *bp)
5948 {
5949 int rc = 0;
5950
5951 if (!netif_running(bp->dev))
5952 return BNX2_LOOPBACK_FAILED;
5953
5954 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
5955 spin_lock_bh(&bp->phy_lock);
5956 bnx2_init_phy(bp, 1);
5957 spin_unlock_bh(&bp->phy_lock);
5958 if (bnx2_run_loopback(bp, BNX2_MAC_LOOPBACK))
5959 rc |= BNX2_MAC_LOOPBACK_FAILED;
5960 if (bnx2_run_loopback(bp, BNX2_PHY_LOOPBACK))
5961 rc |= BNX2_PHY_LOOPBACK_FAILED;
5962 return rc;
5963 }
5964
5965 #define NVRAM_SIZE 0x200
5966 #define CRC32_RESIDUAL 0xdebb20e3
5967
5968 static int
5969 bnx2_test_nvram(struct bnx2 *bp)
5970 {
5971 __be32 buf[NVRAM_SIZE / 4];
5972 u8 *data = (u8 *) buf;
5973 int rc = 0;
5974 u32 magic, csum;
5975
5976 if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0)
5977 goto test_nvram_done;
5978
5979 magic = be32_to_cpu(buf[0]);
5980 if (magic != 0x669955aa) {
5981 rc = -ENODEV;
5982 goto test_nvram_done;
5983 }
5984
5985 if ((rc = bnx2_nvram_read(bp, 0x100, data, NVRAM_SIZE)) != 0)
5986 goto test_nvram_done;
5987
5988 csum = ether_crc_le(0x100, data);
5989 if (csum != CRC32_RESIDUAL) {
5990 rc = -ENODEV;
5991 goto test_nvram_done;
5992 }
5993
5994 csum = ether_crc_le(0x100, data + 0x100);
5995 if (csum != CRC32_RESIDUAL) {
5996 rc = -ENODEV;
5997 }
5998
5999 test_nvram_done:
6000 return rc;
6001 }
6002
6003 static int
6004 bnx2_test_link(struct bnx2 *bp)
6005 {
6006 u32 bmsr;
6007
6008 if (!netif_running(bp->dev))
6009 return -ENODEV;
6010
6011 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
6012 if (bp->link_up)
6013 return 0;
6014 return -ENODEV;
6015 }
6016 spin_lock_bh(&bp->phy_lock);
6017 bnx2_enable_bmsr1(bp);
6018 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
6019 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
6020 bnx2_disable_bmsr1(bp);
6021 spin_unlock_bh(&bp->phy_lock);
6022
6023 if (bmsr & BMSR_LSTATUS) {
6024 return 0;
6025 }
6026 return -ENODEV;
6027 }
6028
6029 static int
6030 bnx2_test_intr(struct bnx2 *bp)
6031 {
6032 int i;
6033 u16 status_idx;
6034
6035 if (!netif_running(bp->dev))
6036 return -ENODEV;
6037
6038 status_idx = BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff;
6039
6040 /* This register is not touched during run-time. */
6041 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);
6042 BNX2_RD(bp, BNX2_HC_COMMAND);
6043
6044 for (i = 0; i < 10; i++) {
6045 if ((BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff) !=
6046 status_idx) {
6047
6048 break;
6049 }
6050
6051 msleep_interruptible(10);
6052 }
6053 if (i < 10)
6054 return 0;
6055
6056 return -ENODEV;
6057 }
6058
6059 /* Determining link for parallel detection. */
6060 static int
6061 bnx2_5706_serdes_has_link(struct bnx2 *bp)
6062 {
6063 u32 mode_ctl, an_dbg, exp;
6064
6065 if (bp->phy_flags & BNX2_PHY_FLAG_NO_PARALLEL)
6066 return 0;
6067
6068 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_MODE_CTL);
6069 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &mode_ctl);
6070
6071 if (!(mode_ctl & MISC_SHDW_MODE_CTL_SIG_DET))
6072 return 0;
6073
6074 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
6075 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
6076 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
6077
6078 if (an_dbg & (MISC_SHDW_AN_DBG_NOSYNC | MISC_SHDW_AN_DBG_RUDI_INVALID))
6079 return 0;
6080
6081 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1);
6082 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
6083 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
6084
6085 if (exp & MII_EXPAND_REG1_RUDI_C) /* receiving CONFIG */
6086 return 0;
6087
6088 return 1;
6089 }
6090
6091 static void
6092 bnx2_5706_serdes_timer(struct bnx2 *bp)
6093 {
6094 int check_link = 1;
6095
6096 spin_lock(&bp->phy_lock);
6097 if (bp->serdes_an_pending) {
6098 bp->serdes_an_pending--;
6099 check_link = 0;
6100 } else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
6101 u32 bmcr;
6102
6103 bp->current_interval = BNX2_TIMER_INTERVAL;
6104
6105 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6106
6107 if (bmcr & BMCR_ANENABLE) {
6108 if (bnx2_5706_serdes_has_link(bp)) {
6109 bmcr &= ~BMCR_ANENABLE;
6110 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
6111 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
6112 bp->phy_flags |= BNX2_PHY_FLAG_PARALLEL_DETECT;
6113 }
6114 }
6115 }
6116 else if ((bp->link_up) && (bp->autoneg & AUTONEG_SPEED) &&
6117 (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)) {
6118 u32 phy2;
6119
6120 bnx2_write_phy(bp, 0x17, 0x0f01);
6121 bnx2_read_phy(bp, 0x15, &phy2);
6122 if (phy2 & 0x20) {
6123 u32 bmcr;
6124
6125 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6126 bmcr |= BMCR_ANENABLE;
6127 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
6128
6129 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
6130 }
6131 } else
6132 bp->current_interval = BNX2_TIMER_INTERVAL;
6133
6134 if (check_link) {
6135 u32 val;
6136
6137 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
6138 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
6139 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
6140
6141 if (bp->link_up && (val & MISC_SHDW_AN_DBG_NOSYNC)) {
6142 if (!(bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN)) {
6143 bnx2_5706s_force_link_dn(bp, 1);
6144 bp->phy_flags |= BNX2_PHY_FLAG_FORCED_DOWN;
6145 } else
6146 bnx2_set_link(bp);
6147 } else if (!bp->link_up && !(val & MISC_SHDW_AN_DBG_NOSYNC))
6148 bnx2_set_link(bp);
6149 }
6150 spin_unlock(&bp->phy_lock);
6151 }
6152
6153 static void
6154 bnx2_5708_serdes_timer(struct bnx2 *bp)
6155 {
6156 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
6157 return;
6158
6159 if ((bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) == 0) {
6160 bp->serdes_an_pending = 0;
6161 return;
6162 }
6163
6164 spin_lock(&bp->phy_lock);
6165 if (bp->serdes_an_pending)
6166 bp->serdes_an_pending--;
6167 else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
6168 u32 bmcr;
6169
6170 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
6171 if (bmcr & BMCR_ANENABLE) {
6172 bnx2_enable_forced_2g5(bp);
6173 bp->current_interval = BNX2_SERDES_FORCED_TIMEOUT;
6174 } else {
6175 bnx2_disable_forced_2g5(bp);
6176 bp->serdes_an_pending = 2;
6177 bp->current_interval = BNX2_TIMER_INTERVAL;
6178 }
6179
6180 } else
6181 bp->current_interval = BNX2_TIMER_INTERVAL;
6182
6183 spin_unlock(&bp->phy_lock);
6184 }
6185
6186 static void
6187 bnx2_timer(struct timer_list *t)
6188 {
6189 struct bnx2 *bp = from_timer(bp, t, timer);
6190
6191 if (!netif_running(bp->dev))
6192 return;
6193
6194 if (atomic_read(&bp->intr_sem) != 0)
6195 goto bnx2_restart_timer;
6196
6197 if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==
6198 BNX2_FLAG_USING_MSI)
6199 bnx2_chk_missed_msi(bp);
6200
6201 bnx2_send_heart_beat(bp);
6202
6203 bp->stats_blk->stat_FwRxDrop =
6204 bnx2_reg_rd_ind(bp, BNX2_FW_RX_DROP_COUNT);
6205
6206 /* workaround occasional corrupted counters */
6207 if ((bp->flags & BNX2_FLAG_BROKEN_STATS) && bp->stats_ticks)
6208 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd |
6209 BNX2_HC_COMMAND_STATS_NOW);
6210
6211 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
6212 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)
6213 bnx2_5706_serdes_timer(bp);
6214 else
6215 bnx2_5708_serdes_timer(bp);
6216 }
6217
6218 bnx2_restart_timer:
6219 mod_timer(&bp->timer, jiffies + bp->current_interval);
6220 }
6221
6222 static int
6223 bnx2_request_irq(struct bnx2 *bp)
6224 {
6225 unsigned long flags;
6226 struct bnx2_irq *irq;
6227 int rc = 0, i;
6228
6229 if (bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)
6230 flags = 0;
6231 else
6232 flags = IRQF_SHARED;
6233
6234 for (i = 0; i < bp->irq_nvecs; i++) {
6235 irq = &bp->irq_tbl[i];
6236 rc = request_irq(irq->vector, irq->handler, flags, irq->name,
6237 &bp->bnx2_napi[i]);
6238 if (rc)
6239 break;
6240 irq->requested = 1;
6241 }
6242 return rc;
6243 }
6244
6245 static void
6246 __bnx2_free_irq(struct bnx2 *bp)
6247 {
6248 struct bnx2_irq *irq;
6249 int i;
6250
6251 for (i = 0; i < bp->irq_nvecs; i++) {
6252 irq = &bp->irq_tbl[i];
6253 if (irq->requested)
6254 free_irq(irq->vector, &bp->bnx2_napi[i]);
6255 irq->requested = 0;
6256 }
6257 }
6258
6259 static void
6260 bnx2_free_irq(struct bnx2 *bp)
6261 {
6262
6263 __bnx2_free_irq(bp);
6264 if (bp->flags & BNX2_FLAG_USING_MSI)
6265 pci_disable_msi(bp->pdev);
6266 else if (bp->flags & BNX2_FLAG_USING_MSIX)
6267 pci_disable_msix(bp->pdev);
6268
6269 bp->flags &= ~(BNX2_FLAG_USING_MSI_OR_MSIX | BNX2_FLAG_ONE_SHOT_MSI);
6270 }
6271
6272 static void
6273 bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)
6274 {
6275 int i, total_vecs;
6276 struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC];
6277 struct net_device *dev = bp->dev;
6278 const int len = sizeof(bp->irq_tbl[0].name);
6279
6280 bnx2_setup_msix_tbl(bp);
6281 BNX2_WR(bp, BNX2_PCI_MSIX_CONTROL, BNX2_MAX_MSIX_HW_VEC - 1);
6282 BNX2_WR(bp, BNX2_PCI_MSIX_TBL_OFF_BIR, BNX2_PCI_GRC_WINDOW2_BASE);
6283 BNX2_WR(bp, BNX2_PCI_MSIX_PBA_OFF_BIT, BNX2_PCI_GRC_WINDOW3_BASE);
6284
6285 /* Need to flush the previous three writes to ensure MSI-X
6286 * is setup properly */
6287 BNX2_RD(bp, BNX2_PCI_MSIX_CONTROL);
6288
6289 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
6290 msix_ent[i].entry = i;
6291 msix_ent[i].vector = 0;
6292 }
6293
6294 total_vecs = msix_vecs;
6295 #ifdef BCM_CNIC
6296 total_vecs++;
6297 #endif
6298 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent,
6299 BNX2_MIN_MSIX_VEC, total_vecs);
6300 if (total_vecs < 0)
6301 return;
6302
6303 msix_vecs = total_vecs;
6304 #ifdef BCM_CNIC
6305 msix_vecs--;
6306 #endif
6307 bp->irq_nvecs = msix_vecs;
6308 bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;
6309 for (i = 0; i < total_vecs; i++) {
6310 bp->irq_tbl[i].vector = msix_ent[i].vector;
6311 snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);
6312 bp->irq_tbl[i].handler = bnx2_msi_1shot;
6313 }
6314 }
6315
6316 static int
6317 bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi)
6318 {
6319 int cpus = netif_get_num_default_rss_queues();
6320 int msix_vecs;
6321
6322 if (!bp->num_req_rx_rings)
6323 msix_vecs = max(cpus + 1, bp->num_req_tx_rings);
6324 else if (!bp->num_req_tx_rings)
6325 msix_vecs = max(cpus, bp->num_req_rx_rings);
6326 else
6327 msix_vecs = max(bp->num_req_rx_rings, bp->num_req_tx_rings);
6328
6329 msix_vecs = min(msix_vecs, RX_MAX_RINGS);
6330
6331 bp->irq_tbl[0].handler = bnx2_interrupt;
6332 strcpy(bp->irq_tbl[0].name, bp->dev->name);
6333 bp->irq_nvecs = 1;
6334 bp->irq_tbl[0].vector = bp->pdev->irq;
6335
6336 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi)
6337 bnx2_enable_msix(bp, msix_vecs);
6338
6339 if ((bp->flags & BNX2_FLAG_MSI_CAP) && !dis_msi &&
6340 !(bp->flags & BNX2_FLAG_USING_MSIX)) {
6341 if (pci_enable_msi(bp->pdev) == 0) {
6342 bp->flags |= BNX2_FLAG_USING_MSI;
6343 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
6344 bp->flags |= BNX2_FLAG_ONE_SHOT_MSI;
6345 bp->irq_tbl[0].handler = bnx2_msi_1shot;
6346 } else
6347 bp->irq_tbl[0].handler = bnx2_msi;
6348
6349 bp->irq_tbl[0].vector = bp->pdev->irq;
6350 }
6351 }
6352
6353 if (!bp->num_req_tx_rings)
6354 bp->num_tx_rings = rounddown_pow_of_two(bp->irq_nvecs);
6355 else
6356 bp->num_tx_rings = min(bp->irq_nvecs, bp->num_req_tx_rings);
6357
6358 if (!bp->num_req_rx_rings)
6359 bp->num_rx_rings = bp->irq_nvecs;
6360 else
6361 bp->num_rx_rings = min(bp->irq_nvecs, bp->num_req_rx_rings);
6362
6363 netif_set_real_num_tx_queues(bp->dev, bp->num_tx_rings);
6364
6365 return netif_set_real_num_rx_queues(bp->dev, bp->num_rx_rings);
6366 }
6367
6368 /* Called with rtnl_lock */
6369 static int
6370 bnx2_open(struct net_device *dev)
6371 {
6372 struct bnx2 *bp = netdev_priv(dev);
6373 int rc;
6374
6375 rc = bnx2_request_firmware(bp);
6376 if (rc < 0)
6377 goto out;
6378
6379 netif_carrier_off(dev);
6380
6381 bnx2_disable_int(bp);
6382
6383 rc = bnx2_setup_int_mode(bp, disable_msi);
6384 if (rc)
6385 goto open_err;
6386 bnx2_init_napi(bp);
6387 bnx2_napi_enable(bp);
6388 rc = bnx2_alloc_mem(bp);
6389 if (rc)
6390 goto open_err;
6391
6392 rc = bnx2_request_irq(bp);
6393 if (rc)
6394 goto open_err;
6395
6396 rc = bnx2_init_nic(bp, 1);
6397 if (rc)
6398 goto open_err;
6399
6400 mod_timer(&bp->timer, jiffies + bp->current_interval);
6401
6402 atomic_set(&bp->intr_sem, 0);
6403
6404 memset(bp->temp_stats_blk, 0, sizeof(struct statistics_block));
6405
6406 bnx2_enable_int(bp);
6407
6408 if (bp->flags & BNX2_FLAG_USING_MSI) {
6409 /* Test MSI to make sure it is working
6410 * If MSI test fails, go back to INTx mode
6411 */
6412 if (bnx2_test_intr(bp) != 0) {
6413 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");
6414
6415 bnx2_disable_int(bp);
6416 bnx2_free_irq(bp);
6417
6418 bnx2_setup_int_mode(bp, 1);
6419
6420 rc = bnx2_init_nic(bp, 0);
6421
6422 if (!rc)
6423 rc = bnx2_request_irq(bp);
6424
6425 if (rc) {
6426 del_timer_sync(&bp->timer);
6427 goto open_err;
6428 }
6429 bnx2_enable_int(bp);
6430 }
6431 }
6432 if (bp->flags & BNX2_FLAG_USING_MSI)
6433 netdev_info(dev, "using MSI\n");
6434 else if (bp->flags & BNX2_FLAG_USING_MSIX)
6435 netdev_info(dev, "using MSIX\n");
6436
6437 netif_tx_start_all_queues(dev);
6438 out:
6439 return rc;
6440
6441 open_err:
6442 bnx2_napi_disable(bp);
6443 bnx2_free_skbs(bp);
6444 bnx2_free_irq(bp);
6445 bnx2_free_mem(bp);
6446 bnx2_del_napi(bp);
6447 bnx2_release_firmware(bp);
6448 goto out;
6449 }
6450
6451 static void
6452 bnx2_reset_task(struct work_struct *work)
6453 {
6454 struct bnx2 *bp = container_of(work, struct bnx2, reset_task);
6455 int rc;
6456 u16 pcicmd;
6457
6458 rtnl_lock();
6459 if (!netif_running(bp->dev)) {
6460 rtnl_unlock();
6461 return;
6462 }
6463
6464 bnx2_netif_stop(bp, true);
6465
6466 pci_read_config_word(bp->pdev, PCI_COMMAND, &pcicmd);
6467 if (!(pcicmd & PCI_COMMAND_MEMORY)) {
6468 /* in case PCI block has reset */
6469 pci_restore_state(bp->pdev);
6470 pci_save_state(bp->pdev);
6471 }
6472 rc = bnx2_init_nic(bp, 1);
6473 if (rc) {
6474 netdev_err(bp->dev, "failed to reset NIC, closing\n");
6475 bnx2_napi_enable(bp);
6476 dev_close(bp->dev);
6477 rtnl_unlock();
6478 return;
6479 }
6480
6481 atomic_set(&bp->intr_sem, 1);
6482 bnx2_netif_start(bp, true);
6483 rtnl_unlock();
6484 }
6485
6486 #define BNX2_FTQ_ENTRY(ftq) { __stringify(ftq##FTQ_CTL), BNX2_##ftq##FTQ_CTL }
6487
6488 static void
6489 bnx2_dump_ftq(struct bnx2 *bp)
6490 {
6491 int i;
6492 u32 reg, bdidx, cid, valid;
6493 struct net_device *dev = bp->dev;
6494 static const struct ftq_reg {
6495 char *name;
6496 u32 off;
6497 } ftq_arr[] = {
6498 BNX2_FTQ_ENTRY(RV2P_P),
6499 BNX2_FTQ_ENTRY(RV2P_T),
6500 BNX2_FTQ_ENTRY(RV2P_M),
6501 BNX2_FTQ_ENTRY(TBDR_),
6502 BNX2_FTQ_ENTRY(TDMA_),
6503 BNX2_FTQ_ENTRY(TXP_),
6504 BNX2_FTQ_ENTRY(TXP_),
6505 BNX2_FTQ_ENTRY(TPAT_),
6506 BNX2_FTQ_ENTRY(RXP_C),
6507 BNX2_FTQ_ENTRY(RXP_),
6508 BNX2_FTQ_ENTRY(COM_COMXQ_),
6509 BNX2_FTQ_ENTRY(COM_COMTQ_),
6510 BNX2_FTQ_ENTRY(COM_COMQ_),
6511 BNX2_FTQ_ENTRY(CP_CPQ_),
6512 };
6513
6514 netdev_err(dev, "<--- start FTQ dump --->\n");
6515 for (i = 0; i < ARRAY_SIZE(ftq_arr); i++)
6516 netdev_err(dev, "%s %08x\n", ftq_arr[i].name,
6517 bnx2_reg_rd_ind(bp, ftq_arr[i].off));
6518
6519 netdev_err(dev, "CPU states:\n");
6520 for (reg = BNX2_TXP_CPU_MODE; reg <= BNX2_CP_CPU_MODE; reg += 0x40000)
6521 netdev_err(dev, "%06x mode %x state %x evt_mask %x pc %x pc %x instr %x\n",
6522 reg, bnx2_reg_rd_ind(bp, reg),
6523 bnx2_reg_rd_ind(bp, reg + 4),
6524 bnx2_reg_rd_ind(bp, reg + 8),
6525 bnx2_reg_rd_ind(bp, reg + 0x1c),
6526 bnx2_reg_rd_ind(bp, reg + 0x1c),
6527 bnx2_reg_rd_ind(bp, reg + 0x20));
6528
6529 netdev_err(dev, "<--- end FTQ dump --->\n");
6530 netdev_err(dev, "<--- start TBDC dump --->\n");
6531 netdev_err(dev, "TBDC free cnt: %ld\n",
6532 BNX2_RD(bp, BNX2_TBDC_STATUS) & BNX2_TBDC_STATUS_FREE_CNT);
6533 netdev_err(dev, "LINE CID BIDX CMD VALIDS\n");
6534 for (i = 0; i < 0x20; i++) {
6535 int j = 0;
6536
6537 BNX2_WR(bp, BNX2_TBDC_BD_ADDR, i);
6538 BNX2_WR(bp, BNX2_TBDC_CAM_OPCODE,
6539 BNX2_TBDC_CAM_OPCODE_OPCODE_CAM_READ);
6540 BNX2_WR(bp, BNX2_TBDC_COMMAND, BNX2_TBDC_COMMAND_CMD_REG_ARB);
6541 while ((BNX2_RD(bp, BNX2_TBDC_COMMAND) &
6542 BNX2_TBDC_COMMAND_CMD_REG_ARB) && j < 100)
6543 j++;
6544
6545 cid = BNX2_RD(bp, BNX2_TBDC_CID);
6546 bdidx = BNX2_RD(bp, BNX2_TBDC_BIDX);
6547 valid = BNX2_RD(bp, BNX2_TBDC_CAM_OPCODE);
6548 netdev_err(dev, "%02x %06x %04lx %02x [%x]\n",
6549 i, cid, bdidx & BNX2_TBDC_BDIDX_BDIDX,
6550 bdidx >> 24, (valid >> 8) & 0x0ff);
6551 }
6552 netdev_err(dev, "<--- end TBDC dump --->\n");
6553 }
6554
6555 static void
6556 bnx2_dump_state(struct bnx2 *bp)
6557 {
6558 struct net_device *dev = bp->dev;
6559 u32 val1, val2;
6560
6561 pci_read_config_dword(bp->pdev, PCI_COMMAND, &val1);
6562 netdev_err(dev, "DEBUG: intr_sem[%x] PCI_CMD[%08x]\n",
6563 atomic_read(&bp->intr_sem), val1);
6564 pci_read_config_dword(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &val1);
6565 pci_read_config_dword(bp->pdev, BNX2_PCICFG_MISC_CONFIG, &val2);
6566 netdev_err(dev, "DEBUG: PCI_PM[%08x] PCI_MISC_CFG[%08x]\n", val1, val2);
6567 netdev_err(dev, "DEBUG: EMAC_TX_STATUS[%08x] EMAC_RX_STATUS[%08x]\n",
6568 BNX2_RD(bp, BNX2_EMAC_TX_STATUS),
6569 BNX2_RD(bp, BNX2_EMAC_RX_STATUS));
6570 netdev_err(dev, "DEBUG: RPM_MGMT_PKT_CTRL[%08x]\n",
6571 BNX2_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));
6572 netdev_err(dev, "DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",
6573 BNX2_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));
6574 if (bp->flags & BNX2_FLAG_USING_MSIX)
6575 netdev_err(dev, "DEBUG: PBA[%08x]\n",
6576 BNX2_RD(bp, BNX2_PCI_GRC_WINDOW3_BASE));
6577 }
6578
6579 static void
6580 bnx2_tx_timeout(struct net_device *dev)
6581 {
6582 struct bnx2 *bp = netdev_priv(dev);
6583
6584 bnx2_dump_ftq(bp);
6585 bnx2_dump_state(bp);
6586 bnx2_dump_mcp_state(bp);
6587
6588 /* This allows the netif to be shutdown gracefully before resetting */
6589 schedule_work(&bp->reset_task);
6590 }
6591
6592 /* Called with netif_tx_lock.
6593 * bnx2_tx_int() runs without netif_tx_lock unless it needs to call
6594 * netif_wake_queue().
6595 */
6596 static netdev_tx_t
6597 bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
6598 {
6599 struct bnx2 *bp = netdev_priv(dev);
6600 dma_addr_t mapping;
6601 struct bnx2_tx_bd *txbd;
6602 struct bnx2_sw_tx_bd *tx_buf;
6603 u32 len, vlan_tag_flags, last_frag, mss;
6604 u16 prod, ring_prod;
6605 int i;
6606 struct bnx2_napi *bnapi;
6607 struct bnx2_tx_ring_info *txr;
6608 struct netdev_queue *txq;
6609
6610 /* Determine which tx ring we will be placed on */
6611 i = skb_get_queue_mapping(skb);
6612 bnapi = &bp->bnx2_napi[i];
6613 txr = &bnapi->tx_ring;
6614 txq = netdev_get_tx_queue(dev, i);
6615
6616 if (unlikely(bnx2_tx_avail(bp, txr) <
6617 (skb_shinfo(skb)->nr_frags + 1))) {
6618 netif_tx_stop_queue(txq);
6619 netdev_err(dev, "BUG! Tx ring full when queue awake!\n");
6620
6621 return NETDEV_TX_BUSY;
6622 }
6623 len = skb_headlen(skb);
6624 prod = txr->tx_prod;
6625 ring_prod = BNX2_TX_RING_IDX(prod);
6626
6627 vlan_tag_flags = 0;
6628 if (skb->ip_summed == CHECKSUM_PARTIAL) {
6629 vlan_tag_flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;
6630 }
6631
6632 if (skb_vlan_tag_present(skb)) {
6633 vlan_tag_flags |=
6634 (TX_BD_FLAGS_VLAN_TAG | (skb_vlan_tag_get(skb) << 16));
6635 }
6636
6637 if ((mss = skb_shinfo(skb)->gso_size)) {
6638 u32 tcp_opt_len;
6639 struct iphdr *iph;
6640
6641 vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
6642
6643 tcp_opt_len = tcp_optlen(skb);
6644
6645 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
6646 u32 tcp_off = skb_transport_offset(skb) -
6647 sizeof(struct ipv6hdr) - ETH_HLEN;
6648
6649 vlan_tag_flags |= ((tcp_opt_len >> 2) << 8) |
6650 TX_BD_FLAGS_SW_FLAGS;
6651 if (likely(tcp_off == 0))
6652 vlan_tag_flags &= ~TX_BD_FLAGS_TCP6_OFF0_MSK;
6653 else {
6654 tcp_off >>= 3;
6655 vlan_tag_flags |= ((tcp_off & 0x3) <<
6656 TX_BD_FLAGS_TCP6_OFF0_SHL) |
6657 ((tcp_off & 0x10) <<
6658 TX_BD_FLAGS_TCP6_OFF4_SHL);
6659 mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;
6660 }
6661 } else {
6662 iph = ip_hdr(skb);
6663 if (tcp_opt_len || (iph->ihl > 5)) {
6664 vlan_tag_flags |= ((iph->ihl - 5) +
6665 (tcp_opt_len >> 2)) << 8;
6666 }
6667 }
6668 } else
6669 mss = 0;
6670
6671 mapping = dma_map_single(&bp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
6672 if (dma_mapping_error(&bp->pdev->dev, mapping)) {
6673 dev_kfree_skb_any(skb);
6674 return NETDEV_TX_OK;
6675 }
6676
6677 tx_buf = &txr->tx_buf_ring[ring_prod];
6678 tx_buf->skb = skb;
6679 dma_unmap_addr_set(tx_buf, mapping, mapping);
6680
6681 txbd = &txr->tx_desc_ring[ring_prod];
6682
6683 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
6684 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
6685 txbd->tx_bd_mss_nbytes = len | (mss << 16);
6686 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags | TX_BD_FLAGS_START;
6687
6688 last_frag = skb_shinfo(skb)->nr_frags;
6689 tx_buf->nr_frags = last_frag;
6690 tx_buf->is_gso = skb_is_gso(skb);
6691
6692 for (i = 0; i < last_frag; i++) {
6693 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6694
6695 prod = BNX2_NEXT_TX_BD(prod);
6696 ring_prod = BNX2_TX_RING_IDX(prod);
6697 txbd = &txr->tx_desc_ring[ring_prod];
6698
6699 len = skb_frag_size(frag);
6700 mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, len,
6701 DMA_TO_DEVICE);
6702 if (dma_mapping_error(&bp->pdev->dev, mapping))
6703 goto dma_error;
6704 dma_unmap_addr_set(&txr->tx_buf_ring[ring_prod], mapping,
6705 mapping);
6706
6707 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
6708 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
6709 txbd->tx_bd_mss_nbytes = len | (mss << 16);
6710 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags;
6711
6712 }
6713 txbd->tx_bd_vlan_tag_flags |= TX_BD_FLAGS_END;
6714
6715 /* Sync BD data before updating TX mailbox */
6716 wmb();
6717
6718 netdev_tx_sent_queue(txq, skb->len);
6719
6720 prod = BNX2_NEXT_TX_BD(prod);
6721 txr->tx_prod_bseq += skb->len;
6722
6723 BNX2_WR16(bp, txr->tx_bidx_addr, prod);
6724 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
6725
6726 mmiowb();
6727
6728 txr->tx_prod = prod;
6729
6730 if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {
6731 netif_tx_stop_queue(txq);
6732
6733 /* netif_tx_stop_queue() must be done before checking
6734 * tx index in bnx2_tx_avail() below, because in
6735 * bnx2_tx_int(), we update tx index before checking for
6736 * netif_tx_queue_stopped().
6737 */
6738 smp_mb();
6739 if (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)
6740 netif_tx_wake_queue(txq);
6741 }
6742
6743 return NETDEV_TX_OK;
6744 dma_error:
6745 /* save value of frag that failed */
6746 last_frag = i;
6747
6748 /* start back at beginning and unmap skb */
6749 prod = txr->tx_prod;
6750 ring_prod = BNX2_TX_RING_IDX(prod);
6751 tx_buf = &txr->tx_buf_ring[ring_prod];
6752 tx_buf->skb = NULL;
6753 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
6754 skb_headlen(skb), PCI_DMA_TODEVICE);
6755
6756 /* unmap remaining mapped pages */
6757 for (i = 0; i < last_frag; i++) {
6758 prod = BNX2_NEXT_TX_BD(prod);
6759 ring_prod = BNX2_TX_RING_IDX(prod);
6760 tx_buf = &txr->tx_buf_ring[ring_prod];
6761 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
6762 skb_frag_size(&skb_shinfo(skb)->frags[i]),
6763 PCI_DMA_TODEVICE);
6764 }
6765
6766 dev_kfree_skb_any(skb);
6767 return NETDEV_TX_OK;
6768 }
6769
6770 /* Called with rtnl_lock */
6771 static int
6772 bnx2_close(struct net_device *dev)
6773 {
6774 struct bnx2 *bp = netdev_priv(dev);
6775
6776 bnx2_disable_int_sync(bp);
6777 bnx2_napi_disable(bp);
6778 netif_tx_disable(dev);
6779 del_timer_sync(&bp->timer);
6780 bnx2_shutdown_chip(bp);
6781 bnx2_free_irq(bp);
6782 bnx2_free_skbs(bp);
6783 bnx2_free_mem(bp);
6784 bnx2_del_napi(bp);
6785 bp->link_up = 0;
6786 netif_carrier_off(bp->dev);
6787 return 0;
6788 }
6789
6790 static void
6791 bnx2_save_stats(struct bnx2 *bp)
6792 {
6793 u32 *hw_stats = (u32 *) bp->stats_blk;
6794 u32 *temp_stats = (u32 *) bp->temp_stats_blk;
6795 int i;
6796
6797 /* The 1st 10 counters are 64-bit counters */
6798 for (i = 0; i < 20; i += 2) {
6799 u32 hi;
6800 u64 lo;
6801
6802 hi = temp_stats[i] + hw_stats[i];
6803 lo = (u64) temp_stats[i + 1] + (u64) hw_stats[i + 1];
6804 if (lo > 0xffffffff)
6805 hi++;
6806 temp_stats[i] = hi;
6807 temp_stats[i + 1] = lo & 0xffffffff;
6808 }
6809
6810 for ( ; i < sizeof(struct statistics_block) / 4; i++)
6811 temp_stats[i] += hw_stats[i];
6812 }
6813
6814 #define GET_64BIT_NET_STATS64(ctr) \
6815 (((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo))
6816
6817 #define GET_64BIT_NET_STATS(ctr) \
6818 GET_64BIT_NET_STATS64(bp->stats_blk->ctr) + \
6819 GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr)
6820
6821 #define GET_32BIT_NET_STATS(ctr) \
6822 (unsigned long) (bp->stats_blk->ctr + \
6823 bp->temp_stats_blk->ctr)
6824
6825 static void
6826 bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
6827 {
6828 struct bnx2 *bp = netdev_priv(dev);
6829
6830 if (!bp->stats_blk)
6831 return;
6832
6833 net_stats->rx_packets =
6834 GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) +
6835 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) +
6836 GET_64BIT_NET_STATS(stat_IfHCInBroadcastPkts);
6837
6838 net_stats->tx_packets =
6839 GET_64BIT_NET_STATS(stat_IfHCOutUcastPkts) +
6840 GET_64BIT_NET_STATS(stat_IfHCOutMulticastPkts) +
6841 GET_64BIT_NET_STATS(stat_IfHCOutBroadcastPkts);
6842
6843 net_stats->rx_bytes =
6844 GET_64BIT_NET_STATS(stat_IfHCInOctets);
6845
6846 net_stats->tx_bytes =
6847 GET_64BIT_NET_STATS(stat_IfHCOutOctets);
6848
6849 net_stats->multicast =
6850 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts);
6851
6852 net_stats->collisions =
6853 GET_32BIT_NET_STATS(stat_EtherStatsCollisions);
6854
6855 net_stats->rx_length_errors =
6856 GET_32BIT_NET_STATS(stat_EtherStatsUndersizePkts) +
6857 GET_32BIT_NET_STATS(stat_EtherStatsOverrsizePkts);
6858
6859 net_stats->rx_over_errors =
6860 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
6861 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards);
6862
6863 net_stats->rx_frame_errors =
6864 GET_32BIT_NET_STATS(stat_Dot3StatsAlignmentErrors);
6865
6866 net_stats->rx_crc_errors =
6867 GET_32BIT_NET_STATS(stat_Dot3StatsFCSErrors);
6868
6869 net_stats->rx_errors = net_stats->rx_length_errors +
6870 net_stats->rx_over_errors + net_stats->rx_frame_errors +
6871 net_stats->rx_crc_errors;
6872
6873 net_stats->tx_aborted_errors =
6874 GET_32BIT_NET_STATS(stat_Dot3StatsExcessiveCollisions) +
6875 GET_32BIT_NET_STATS(stat_Dot3StatsLateCollisions);
6876
6877 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||
6878 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))
6879 net_stats->tx_carrier_errors = 0;
6880 else {
6881 net_stats->tx_carrier_errors =
6882 GET_32BIT_NET_STATS(stat_Dot3StatsCarrierSenseErrors);
6883 }
6884
6885 net_stats->tx_errors =
6886 GET_32BIT_NET_STATS(stat_emac_tx_stat_dot3statsinternalmactransmiterrors) +
6887 net_stats->tx_aborted_errors +
6888 net_stats->tx_carrier_errors;
6889
6890 net_stats->rx_missed_errors =
6891 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
6892 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards) +
6893 GET_32BIT_NET_STATS(stat_FwRxDrop);
6894
6895 }
6896
6897 /* All ethtool functions called with rtnl_lock */
6898
6899 static int
6900 bnx2_get_link_ksettings(struct net_device *dev,
6901 struct ethtool_link_ksettings *cmd)
6902 {
6903 struct bnx2 *bp = netdev_priv(dev);
6904 int support_serdes = 0, support_copper = 0;
6905 u32 supported, advertising;
6906
6907 supported = SUPPORTED_Autoneg;
6908 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
6909 support_serdes = 1;
6910 support_copper = 1;
6911 } else if (bp->phy_port == PORT_FIBRE)
6912 support_serdes = 1;
6913 else
6914 support_copper = 1;
6915
6916 if (support_serdes) {
6917 supported |= SUPPORTED_1000baseT_Full |
6918 SUPPORTED_FIBRE;
6919 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
6920 supported |= SUPPORTED_2500baseX_Full;
6921 }
6922 if (support_copper) {
6923 supported |= SUPPORTED_10baseT_Half |
6924 SUPPORTED_10baseT_Full |
6925 SUPPORTED_100baseT_Half |
6926 SUPPORTED_100baseT_Full |
6927 SUPPORTED_1000baseT_Full |
6928 SUPPORTED_TP;
6929 }
6930
6931 spin_lock_bh(&bp->phy_lock);
6932 cmd->base.port = bp->phy_port;
6933 advertising = bp->advertising;
6934
6935 if (bp->autoneg & AUTONEG_SPEED) {
6936 cmd->base.autoneg = AUTONEG_ENABLE;
6937 } else {
6938 cmd->base.autoneg = AUTONEG_DISABLE;
6939 }
6940
6941 if (netif_carrier_ok(dev)) {
6942 cmd->base.speed = bp->line_speed;
6943 cmd->base.duplex = bp->duplex;
6944 if (!(bp->phy_flags & BNX2_PHY_FLAG_SERDES)) {
6945 if (bp->phy_flags & BNX2_PHY_FLAG_MDIX)
6946 cmd->base.eth_tp_mdix = ETH_TP_MDI_X;
6947 else
6948 cmd->base.eth_tp_mdix = ETH_TP_MDI;
6949 }
6950 }
6951 else {
6952 cmd->base.speed = SPEED_UNKNOWN;
6953 cmd->base.duplex = DUPLEX_UNKNOWN;
6954 }
6955 spin_unlock_bh(&bp->phy_lock);
6956
6957 cmd->base.phy_address = bp->phy_addr;
6958
6959 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
6960 supported);
6961 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
6962 advertising);
6963
6964 return 0;
6965 }
6966
6967 static int
6968 bnx2_set_link_ksettings(struct net_device *dev,
6969 const struct ethtool_link_ksettings *cmd)
6970 {
6971 struct bnx2 *bp = netdev_priv(dev);
6972 u8 autoneg = bp->autoneg;
6973 u8 req_duplex = bp->req_duplex;
6974 u16 req_line_speed = bp->req_line_speed;
6975 u32 advertising = bp->advertising;
6976 int err = -EINVAL;
6977
6978 spin_lock_bh(&bp->phy_lock);
6979
6980 if (cmd->base.port != PORT_TP && cmd->base.port != PORT_FIBRE)
6981 goto err_out_unlock;
6982
6983 if (cmd->base.port != bp->phy_port &&
6984 !(bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP))
6985 goto err_out_unlock;
6986
6987 /* If device is down, we can store the settings only if the user
6988 * is setting the currently active port.
6989 */
6990 if (!netif_running(dev) && cmd->base.port != bp->phy_port)
6991 goto err_out_unlock;
6992
6993 if (cmd->base.autoneg == AUTONEG_ENABLE) {
6994 autoneg |= AUTONEG_SPEED;
6995
6996 ethtool_convert_link_mode_to_legacy_u32(
6997 &advertising, cmd->link_modes.advertising);
6998
6999 if (cmd->base.port == PORT_TP) {
7000 advertising &= ETHTOOL_ALL_COPPER_SPEED;
7001 if (!advertising)
7002 advertising = ETHTOOL_ALL_COPPER_SPEED;
7003 } else {
7004 advertising &= ETHTOOL_ALL_FIBRE_SPEED;
7005 if (!advertising)
7006 advertising = ETHTOOL_ALL_FIBRE_SPEED;
7007 }
7008 advertising |= ADVERTISED_Autoneg;
7009 }
7010 else {
7011 u32 speed = cmd->base.speed;
7012
7013 if (cmd->base.port == PORT_FIBRE) {
7014 if ((speed != SPEED_1000 &&
7015 speed != SPEED_2500) ||
7016 (cmd->base.duplex != DUPLEX_FULL))
7017 goto err_out_unlock;
7018
7019 if (speed == SPEED_2500 &&
7020 !(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
7021 goto err_out_unlock;
7022 } else if (speed == SPEED_1000 || speed == SPEED_2500)
7023 goto err_out_unlock;
7024
7025 autoneg &= ~AUTONEG_SPEED;
7026 req_line_speed = speed;
7027 req_duplex = cmd->base.duplex;
7028 advertising = 0;
7029 }
7030
7031 bp->autoneg = autoneg;
7032 bp->advertising = advertising;
7033 bp->req_line_speed = req_line_speed;
7034 bp->req_duplex = req_duplex;
7035
7036 err = 0;
7037 /* If device is down, the new settings will be picked up when it is
7038 * brought up.
7039 */
7040 if (netif_running(dev))
7041 err = bnx2_setup_phy(bp, cmd->base.port);
7042
7043 err_out_unlock:
7044 spin_unlock_bh(&bp->phy_lock);
7045
7046 return err;
7047 }
7048
7049 static void
7050 bnx2_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
7051 {
7052 struct bnx2 *bp = netdev_priv(dev);
7053
7054 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
7055 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
7056 strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
7057 strlcpy(info->fw_version, bp->fw_version, sizeof(info->fw_version));
7058 }
7059
7060 #define BNX2_REGDUMP_LEN (32 * 1024)
7061
7062 static int
7063 bnx2_get_regs_len(struct net_device *dev)
7064 {
7065 return BNX2_REGDUMP_LEN;
7066 }
7067
7068 static void
7069 bnx2_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
7070 {
7071 u32 *p = _p, i, offset;
7072 u8 *orig_p = _p;
7073 struct bnx2 *bp = netdev_priv(dev);
7074 static const u32 reg_boundaries[] = {
7075 0x0000, 0x0098, 0x0400, 0x045c,
7076 0x0800, 0x0880, 0x0c00, 0x0c10,
7077 0x0c30, 0x0d08, 0x1000, 0x101c,
7078 0x1040, 0x1048, 0x1080, 0x10a4,
7079 0x1400, 0x1490, 0x1498, 0x14f0,
7080 0x1500, 0x155c, 0x1580, 0x15dc,
7081 0x1600, 0x1658, 0x1680, 0x16d8,
7082 0x1800, 0x1820, 0x1840, 0x1854,
7083 0x1880, 0x1894, 0x1900, 0x1984,
7084 0x1c00, 0x1c0c, 0x1c40, 0x1c54,
7085 0x1c80, 0x1c94, 0x1d00, 0x1d84,
7086 0x2000, 0x2030, 0x23c0, 0x2400,
7087 0x2800, 0x2820, 0x2830, 0x2850,
7088 0x2b40, 0x2c10, 0x2fc0, 0x3058,
7089 0x3c00, 0x3c94, 0x4000, 0x4010,
7090 0x4080, 0x4090, 0x43c0, 0x4458,
7091 0x4c00, 0x4c18, 0x4c40, 0x4c54,
7092 0x4fc0, 0x5010, 0x53c0, 0x5444,
7093 0x5c00, 0x5c18, 0x5c80, 0x5c90,
7094 0x5fc0, 0x6000, 0x6400, 0x6428,
7095 0x6800, 0x6848, 0x684c, 0x6860,
7096 0x6888, 0x6910, 0x8000
7097 };
7098
7099 regs->version = 0;
7100
7101 memset(p, 0, BNX2_REGDUMP_LEN);
7102
7103 if (!netif_running(bp->dev))
7104 return;
7105
7106 i = 0;
7107 offset = reg_boundaries[0];
7108 p += offset;
7109 while (offset < BNX2_REGDUMP_LEN) {
7110 *p++ = BNX2_RD(bp, offset);
7111 offset += 4;
7112 if (offset == reg_boundaries[i + 1]) {
7113 offset = reg_boundaries[i + 2];
7114 p = (u32 *) (orig_p + offset);
7115 i += 2;
7116 }
7117 }
7118 }
7119
7120 static void
7121 bnx2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
7122 {
7123 struct bnx2 *bp = netdev_priv(dev);
7124
7125 if (bp->flags & BNX2_FLAG_NO_WOL) {
7126 wol->supported = 0;
7127 wol->wolopts = 0;
7128 }
7129 else {
7130 wol->supported = WAKE_MAGIC;
7131 if (bp->wol)
7132 wol->wolopts = WAKE_MAGIC;
7133 else
7134 wol->wolopts = 0;
7135 }
7136 memset(&wol->sopass, 0, sizeof(wol->sopass));
7137 }
7138
7139 static int
7140 bnx2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
7141 {
7142 struct bnx2 *bp = netdev_priv(dev);
7143
7144 if (wol->wolopts & ~WAKE_MAGIC)
7145 return -EINVAL;
7146
7147 if (wol->wolopts & WAKE_MAGIC) {
7148 if (bp->flags & BNX2_FLAG_NO_WOL)
7149 return -EINVAL;
7150
7151 bp->wol = 1;
7152 }
7153 else {
7154 bp->wol = 0;
7155 }
7156
7157 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);
7158
7159 return 0;
7160 }
7161
7162 static int
7163 bnx2_nway_reset(struct net_device *dev)
7164 {
7165 struct bnx2 *bp = netdev_priv(dev);
7166 u32 bmcr;
7167
7168 if (!netif_running(dev))
7169 return -EAGAIN;
7170
7171 if (!(bp->autoneg & AUTONEG_SPEED)) {
7172 return -EINVAL;
7173 }
7174
7175 spin_lock_bh(&bp->phy_lock);
7176
7177 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
7178 int rc;
7179
7180 rc = bnx2_setup_remote_phy(bp, bp->phy_port);
7181 spin_unlock_bh(&bp->phy_lock);
7182 return rc;
7183 }
7184
7185 /* Force a link down visible on the other side */
7186 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
7187 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
7188 spin_unlock_bh(&bp->phy_lock);
7189
7190 msleep(20);
7191
7192 spin_lock_bh(&bp->phy_lock);
7193
7194 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
7195 bp->serdes_an_pending = 1;
7196 mod_timer(&bp->timer, jiffies + bp->current_interval);
7197 }
7198
7199 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
7200 bmcr &= ~BMCR_LOOPBACK;
7201 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART | BMCR_ANENABLE);
7202
7203 spin_unlock_bh(&bp->phy_lock);
7204
7205 return 0;
7206 }
7207
7208 static u32
7209 bnx2_get_link(struct net_device *dev)
7210 {
7211 struct bnx2 *bp = netdev_priv(dev);
7212
7213 return bp->link_up;
7214 }
7215
7216 static int
7217 bnx2_get_eeprom_len(struct net_device *dev)
7218 {
7219 struct bnx2 *bp = netdev_priv(dev);
7220
7221 if (!bp->flash_info)
7222 return 0;
7223
7224 return (int) bp->flash_size;
7225 }
7226
7227 static int
7228 bnx2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
7229 u8 *eebuf)
7230 {
7231 struct bnx2 *bp = netdev_priv(dev);
7232 int rc;
7233
7234 /* parameters already validated in ethtool_get_eeprom */
7235
7236 rc = bnx2_nvram_read(bp, eeprom->offset, eebuf, eeprom->len);
7237
7238 return rc;
7239 }
7240
7241 static int
7242 bnx2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
7243 u8 *eebuf)
7244 {
7245 struct bnx2 *bp = netdev_priv(dev);
7246 int rc;
7247
7248 /* parameters already validated in ethtool_set_eeprom */
7249
7250 rc = bnx2_nvram_write(bp, eeprom->offset, eebuf, eeprom->len);
7251
7252 return rc;
7253 }
7254
7255 static int
7256 bnx2_get_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
7257 {
7258 struct bnx2 *bp = netdev_priv(dev);
7259
7260 memset(coal, 0, sizeof(struct ethtool_coalesce));
7261
7262 coal->rx_coalesce_usecs = bp->rx_ticks;
7263 coal->rx_max_coalesced_frames = bp->rx_quick_cons_trip;
7264 coal->rx_coalesce_usecs_irq = bp->rx_ticks_int;
7265 coal->rx_max_coalesced_frames_irq = bp->rx_quick_cons_trip_int;
7266
7267 coal->tx_coalesce_usecs = bp->tx_ticks;
7268 coal->tx_max_coalesced_frames = bp->tx_quick_cons_trip;
7269 coal->tx_coalesce_usecs_irq = bp->tx_ticks_int;
7270 coal->tx_max_coalesced_frames_irq = bp->tx_quick_cons_trip_int;
7271
7272 coal->stats_block_coalesce_usecs = bp->stats_ticks;
7273
7274 return 0;
7275 }
7276
7277 static int
7278 bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
7279 {
7280 struct bnx2 *bp = netdev_priv(dev);
7281
7282 bp->rx_ticks = (u16) coal->rx_coalesce_usecs;
7283 if (bp->rx_ticks > 0x3ff) bp->rx_ticks = 0x3ff;
7284
7285 bp->rx_quick_cons_trip = (u16) coal->rx_max_coalesced_frames;
7286 if (bp->rx_quick_cons_trip > 0xff) bp->rx_quick_cons_trip = 0xff;
7287
7288 bp->rx_ticks_int = (u16) coal->rx_coalesce_usecs_irq;
7289 if (bp->rx_ticks_int > 0x3ff) bp->rx_ticks_int = 0x3ff;
7290
7291 bp->rx_quick_cons_trip_int = (u16) coal->rx_max_coalesced_frames_irq;
7292 if (bp->rx_quick_cons_trip_int > 0xff)
7293 bp->rx_quick_cons_trip_int = 0xff;
7294
7295 bp->tx_ticks = (u16) coal->tx_coalesce_usecs;
7296 if (bp->tx_ticks > 0x3ff) bp->tx_ticks = 0x3ff;
7297
7298 bp->tx_quick_cons_trip = (u16) coal->tx_max_coalesced_frames;
7299 if (bp->tx_quick_cons_trip > 0xff) bp->tx_quick_cons_trip = 0xff;
7300
7301 bp->tx_ticks_int = (u16) coal->tx_coalesce_usecs_irq;
7302 if (bp->tx_ticks_int > 0x3ff) bp->tx_ticks_int = 0x3ff;
7303
7304 bp->tx_quick_cons_trip_int = (u16) coal->tx_max_coalesced_frames_irq;
7305 if (bp->tx_quick_cons_trip_int > 0xff) bp->tx_quick_cons_trip_int =
7306 0xff;
7307
7308 bp->stats_ticks = coal->stats_block_coalesce_usecs;
7309 if (bp->flags & BNX2_FLAG_BROKEN_STATS) {
7310 if (bp->stats_ticks != 0 && bp->stats_ticks != USEC_PER_SEC)
7311 bp->stats_ticks = USEC_PER_SEC;
7312 }
7313 if (bp->stats_ticks > BNX2_HC_STATS_TICKS_HC_STAT_TICKS)
7314 bp->stats_ticks = BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
7315 bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
7316
7317 if (netif_running(bp->dev)) {
7318 bnx2_netif_stop(bp, true);
7319 bnx2_init_nic(bp, 0);
7320 bnx2_netif_start(bp, true);
7321 }
7322
7323 return 0;
7324 }
7325
7326 static void
7327 bnx2_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
7328 {
7329 struct bnx2 *bp = netdev_priv(dev);
7330
7331 ering->rx_max_pending = BNX2_MAX_TOTAL_RX_DESC_CNT;
7332 ering->rx_jumbo_max_pending = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;
7333
7334 ering->rx_pending = bp->rx_ring_size;
7335 ering->rx_jumbo_pending = bp->rx_pg_ring_size;
7336
7337 ering->tx_max_pending = BNX2_MAX_TX_DESC_CNT;
7338 ering->tx_pending = bp->tx_ring_size;
7339 }
7340
7341 static int
7342 bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx, bool reset_irq)
7343 {
7344 if (netif_running(bp->dev)) {
7345 /* Reset will erase chipset stats; save them */
7346 bnx2_save_stats(bp);
7347
7348 bnx2_netif_stop(bp, true);
7349 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
7350 if (reset_irq) {
7351 bnx2_free_irq(bp);
7352 bnx2_del_napi(bp);
7353 } else {
7354 __bnx2_free_irq(bp);
7355 }
7356 bnx2_free_skbs(bp);
7357 bnx2_free_mem(bp);
7358 }
7359
7360 bnx2_set_rx_ring_size(bp, rx);
7361 bp->tx_ring_size = tx;
7362
7363 if (netif_running(bp->dev)) {
7364 int rc = 0;
7365
7366 if (reset_irq) {
7367 rc = bnx2_setup_int_mode(bp, disable_msi);
7368 bnx2_init_napi(bp);
7369 }
7370
7371 if (!rc)
7372 rc = bnx2_alloc_mem(bp);
7373
7374 if (!rc)
7375 rc = bnx2_request_irq(bp);
7376
7377 if (!rc)
7378 rc = bnx2_init_nic(bp, 0);
7379
7380 if (rc) {
7381 bnx2_napi_enable(bp);
7382 dev_close(bp->dev);
7383 return rc;
7384 }
7385 #ifdef BCM_CNIC
7386 mutex_lock(&bp->cnic_lock);
7387 /* Let cnic know about the new status block. */
7388 if (bp->cnic_eth_dev.drv_state & CNIC_DRV_STATE_REGD)
7389 bnx2_setup_cnic_irq_info(bp);
7390 mutex_unlock(&bp->cnic_lock);
7391 #endif
7392 bnx2_netif_start(bp, true);
7393 }
7394 return 0;
7395 }
7396
7397 static int
7398 bnx2_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
7399 {
7400 struct bnx2 *bp = netdev_priv(dev);
7401 int rc;
7402
7403 if ((ering->rx_pending > BNX2_MAX_TOTAL_RX_DESC_CNT) ||
7404 (ering->tx_pending > BNX2_MAX_TX_DESC_CNT) ||
7405 (ering->tx_pending <= MAX_SKB_FRAGS)) {
7406
7407 return -EINVAL;
7408 }
7409 rc = bnx2_change_ring_size(bp, ering->rx_pending, ering->tx_pending,
7410 false);
7411 return rc;
7412 }
7413
7414 static void
7415 bnx2_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
7416 {
7417 struct bnx2 *bp = netdev_priv(dev);
7418
7419 epause->autoneg = ((bp->autoneg & AUTONEG_FLOW_CTRL) != 0);
7420 epause->rx_pause = ((bp->flow_ctrl & FLOW_CTRL_RX) != 0);
7421 epause->tx_pause = ((bp->flow_ctrl & FLOW_CTRL_TX) != 0);
7422 }
7423
7424 static int
7425 bnx2_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
7426 {
7427 struct bnx2 *bp = netdev_priv(dev);
7428
7429 bp->req_flow_ctrl = 0;
7430 if (epause->rx_pause)
7431 bp->req_flow_ctrl |= FLOW_CTRL_RX;
7432 if (epause->tx_pause)
7433 bp->req_flow_ctrl |= FLOW_CTRL_TX;
7434
7435 if (epause->autoneg) {
7436 bp->autoneg |= AUTONEG_FLOW_CTRL;
7437 }
7438 else {
7439 bp->autoneg &= ~AUTONEG_FLOW_CTRL;
7440 }
7441
7442 if (netif_running(dev)) {
7443 spin_lock_bh(&bp->phy_lock);
7444 bnx2_setup_phy(bp, bp->phy_port);
7445 spin_unlock_bh(&bp->phy_lock);
7446 }
7447
7448 return 0;
7449 }
7450
7451 static struct {
7452 char string[ETH_GSTRING_LEN];
7453 } bnx2_stats_str_arr[] = {
7454 { "rx_bytes" },
7455 { "rx_error_bytes" },
7456 { "tx_bytes" },
7457 { "tx_error_bytes" },
7458 { "rx_ucast_packets" },
7459 { "rx_mcast_packets" },
7460 { "rx_bcast_packets" },
7461 { "tx_ucast_packets" },
7462 { "tx_mcast_packets" },
7463 { "tx_bcast_packets" },
7464 { "tx_mac_errors" },
7465 { "tx_carrier_errors" },
7466 { "rx_crc_errors" },
7467 { "rx_align_errors" },
7468 { "tx_single_collisions" },
7469 { "tx_multi_collisions" },
7470 { "tx_deferred" },
7471 { "tx_excess_collisions" },
7472 { "tx_late_collisions" },
7473 { "tx_total_collisions" },
7474 { "rx_fragments" },
7475 { "rx_jabbers" },
7476 { "rx_undersize_packets" },
7477 { "rx_oversize_packets" },
7478 { "rx_64_byte_packets" },
7479 { "rx_65_to_127_byte_packets" },
7480 { "rx_128_to_255_byte_packets" },
7481 { "rx_256_to_511_byte_packets" },
7482 { "rx_512_to_1023_byte_packets" },
7483 { "rx_1024_to_1522_byte_packets" },
7484 { "rx_1523_to_9022_byte_packets" },
7485 { "tx_64_byte_packets" },
7486 { "tx_65_to_127_byte_packets" },
7487 { "tx_128_to_255_byte_packets" },
7488 { "tx_256_to_511_byte_packets" },
7489 { "tx_512_to_1023_byte_packets" },
7490 { "tx_1024_to_1522_byte_packets" },
7491 { "tx_1523_to_9022_byte_packets" },
7492 { "rx_xon_frames" },
7493 { "rx_xoff_frames" },
7494 { "tx_xon_frames" },
7495 { "tx_xoff_frames" },
7496 { "rx_mac_ctrl_frames" },
7497 { "rx_filtered_packets" },
7498 { "rx_ftq_discards" },
7499 { "rx_discards" },
7500 { "rx_fw_discards" },
7501 };
7502
7503 #define BNX2_NUM_STATS ARRAY_SIZE(bnx2_stats_str_arr)
7504
7505 #define STATS_OFFSET32(offset_name) (offsetof(struct statistics_block, offset_name) / 4)
7506
7507 static const unsigned long bnx2_stats_offset_arr[BNX2_NUM_STATS] = {
7508 STATS_OFFSET32(stat_IfHCInOctets_hi),
7509 STATS_OFFSET32(stat_IfHCInBadOctets_hi),
7510 STATS_OFFSET32(stat_IfHCOutOctets_hi),
7511 STATS_OFFSET32(stat_IfHCOutBadOctets_hi),
7512 STATS_OFFSET32(stat_IfHCInUcastPkts_hi),
7513 STATS_OFFSET32(stat_IfHCInMulticastPkts_hi),
7514 STATS_OFFSET32(stat_IfHCInBroadcastPkts_hi),
7515 STATS_OFFSET32(stat_IfHCOutUcastPkts_hi),
7516 STATS_OFFSET32(stat_IfHCOutMulticastPkts_hi),
7517 STATS_OFFSET32(stat_IfHCOutBroadcastPkts_hi),
7518 STATS_OFFSET32(stat_emac_tx_stat_dot3statsinternalmactransmiterrors),
7519 STATS_OFFSET32(stat_Dot3StatsCarrierSenseErrors),
7520 STATS_OFFSET32(stat_Dot3StatsFCSErrors),
7521 STATS_OFFSET32(stat_Dot3StatsAlignmentErrors),
7522 STATS_OFFSET32(stat_Dot3StatsSingleCollisionFrames),
7523 STATS_OFFSET32(stat_Dot3StatsMultipleCollisionFrames),
7524 STATS_OFFSET32(stat_Dot3StatsDeferredTransmissions),
7525 STATS_OFFSET32(stat_Dot3StatsExcessiveCollisions),
7526 STATS_OFFSET32(stat_Dot3StatsLateCollisions),
7527 STATS_OFFSET32(stat_EtherStatsCollisions),
7528 STATS_OFFSET32(stat_EtherStatsFragments),
7529 STATS_OFFSET32(stat_EtherStatsJabbers),
7530 STATS_OFFSET32(stat_EtherStatsUndersizePkts),
7531 STATS_OFFSET32(stat_EtherStatsOverrsizePkts),
7532 STATS_OFFSET32(stat_EtherStatsPktsRx64Octets),
7533 STATS_OFFSET32(stat_EtherStatsPktsRx65Octetsto127Octets),
7534 STATS_OFFSET32(stat_EtherStatsPktsRx128Octetsto255Octets),
7535 STATS_OFFSET32(stat_EtherStatsPktsRx256Octetsto511Octets),
7536 STATS_OFFSET32(stat_EtherStatsPktsRx512Octetsto1023Octets),
7537 STATS_OFFSET32(stat_EtherStatsPktsRx1024Octetsto1522Octets),
7538 STATS_OFFSET32(stat_EtherStatsPktsRx1523Octetsto9022Octets),
7539 STATS_OFFSET32(stat_EtherStatsPktsTx64Octets),
7540 STATS_OFFSET32(stat_EtherStatsPktsTx65Octetsto127Octets),
7541 STATS_OFFSET32(stat_EtherStatsPktsTx128Octetsto255Octets),
7542 STATS_OFFSET32(stat_EtherStatsPktsTx256Octetsto511Octets),
7543 STATS_OFFSET32(stat_EtherStatsPktsTx512Octetsto1023Octets),
7544 STATS_OFFSET32(stat_EtherStatsPktsTx1024Octetsto1522Octets),
7545 STATS_OFFSET32(stat_EtherStatsPktsTx1523Octetsto9022Octets),
7546 STATS_OFFSET32(stat_XonPauseFramesReceived),
7547 STATS_OFFSET32(stat_XoffPauseFramesReceived),
7548 STATS_OFFSET32(stat_OutXonSent),
7549 STATS_OFFSET32(stat_OutXoffSent),
7550 STATS_OFFSET32(stat_MacControlFramesReceived),
7551 STATS_OFFSET32(stat_IfInFramesL2FilterDiscards),
7552 STATS_OFFSET32(stat_IfInFTQDiscards),
7553 STATS_OFFSET32(stat_IfInMBUFDiscards),
7554 STATS_OFFSET32(stat_FwRxDrop),
7555 };
7556
7557 /* stat_IfHCInBadOctets and stat_Dot3StatsCarrierSenseErrors are
7558 * skipped because of errata.
7559 */
7560 static u8 bnx2_5706_stats_len_arr[BNX2_NUM_STATS] = {
7561 8,0,8,8,8,8,8,8,8,8,
7562 4,0,4,4,4,4,4,4,4,4,
7563 4,4,4,4,4,4,4,4,4,4,
7564 4,4,4,4,4,4,4,4,4,4,
7565 4,4,4,4,4,4,4,
7566 };
7567
7568 static u8 bnx2_5708_stats_len_arr[BNX2_NUM_STATS] = {
7569 8,0,8,8,8,8,8,8,8,8,
7570 4,4,4,4,4,4,4,4,4,4,
7571 4,4,4,4,4,4,4,4,4,4,
7572 4,4,4,4,4,4,4,4,4,4,
7573 4,4,4,4,4,4,4,
7574 };
7575
7576 #define BNX2_NUM_TESTS 6
7577
7578 static struct {
7579 char string[ETH_GSTRING_LEN];
7580 } bnx2_tests_str_arr[BNX2_NUM_TESTS] = {
7581 { "register_test (offline)" },
7582 { "memory_test (offline)" },
7583 { "loopback_test (offline)" },
7584 { "nvram_test (online)" },
7585 { "interrupt_test (online)" },
7586 { "link_test (online)" },
7587 };
7588
7589 static int
7590 bnx2_get_sset_count(struct net_device *dev, int sset)
7591 {
7592 switch (sset) {
7593 case ETH_SS_TEST:
7594 return BNX2_NUM_TESTS;
7595 case ETH_SS_STATS:
7596 return BNX2_NUM_STATS;
7597 default:
7598 return -EOPNOTSUPP;
7599 }
7600 }
7601
7602 static void
7603 bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
7604 {
7605 struct bnx2 *bp = netdev_priv(dev);
7606
7607 memset(buf, 0, sizeof(u64) * BNX2_NUM_TESTS);
7608 if (etest->flags & ETH_TEST_FL_OFFLINE) {
7609 int i;
7610
7611 bnx2_netif_stop(bp, true);
7612 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);
7613 bnx2_free_skbs(bp);
7614
7615 if (bnx2_test_registers(bp) != 0) {
7616 buf[0] = 1;
7617 etest->flags |= ETH_TEST_FL_FAILED;
7618 }
7619 if (bnx2_test_memory(bp) != 0) {
7620 buf[1] = 1;
7621 etest->flags |= ETH_TEST_FL_FAILED;
7622 }
7623 if ((buf[2] = bnx2_test_loopback(bp)) != 0)
7624 etest->flags |= ETH_TEST_FL_FAILED;
7625
7626 if (!netif_running(bp->dev))
7627 bnx2_shutdown_chip(bp);
7628 else {
7629 bnx2_init_nic(bp, 1);
7630 bnx2_netif_start(bp, true);
7631 }
7632
7633 /* wait for link up */
7634 for (i = 0; i < 7; i++) {
7635 if (bp->link_up)
7636 break;
7637 msleep_interruptible(1000);
7638 }
7639 }
7640
7641 if (bnx2_test_nvram(bp) != 0) {
7642 buf[3] = 1;
7643 etest->flags |= ETH_TEST_FL_FAILED;
7644 }
7645 if (bnx2_test_intr(bp) != 0) {
7646 buf[4] = 1;
7647 etest->flags |= ETH_TEST_FL_FAILED;
7648 }
7649
7650 if (bnx2_test_link(bp) != 0) {
7651 buf[5] = 1;
7652 etest->flags |= ETH_TEST_FL_FAILED;
7653
7654 }
7655 }
7656
7657 static void
7658 bnx2_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
7659 {
7660 switch (stringset) {
7661 case ETH_SS_STATS:
7662 memcpy(buf, bnx2_stats_str_arr,
7663 sizeof(bnx2_stats_str_arr));
7664 break;
7665 case ETH_SS_TEST:
7666 memcpy(buf, bnx2_tests_str_arr,
7667 sizeof(bnx2_tests_str_arr));
7668 break;
7669 }
7670 }
7671
7672 static void
7673 bnx2_get_ethtool_stats(struct net_device *dev,
7674 struct ethtool_stats *stats, u64 *buf)
7675 {
7676 struct bnx2 *bp = netdev_priv(dev);
7677 int i;
7678 u32 *hw_stats = (u32 *) bp->stats_blk;
7679 u32 *temp_stats = (u32 *) bp->temp_stats_blk;
7680 u8 *stats_len_arr = NULL;
7681
7682 if (!hw_stats) {
7683 memset(buf, 0, sizeof(u64) * BNX2_NUM_STATS);
7684 return;
7685 }
7686
7687 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||
7688 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) ||
7689 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A2) ||
7690 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))
7691 stats_len_arr = bnx2_5706_stats_len_arr;
7692 else
7693 stats_len_arr = bnx2_5708_stats_len_arr;
7694
7695 for (i = 0; i < BNX2_NUM_STATS; i++) {
7696 unsigned long offset;
7697
7698 if (stats_len_arr[i] == 0) {
7699 /* skip this counter */
7700 buf[i] = 0;
7701 continue;
7702 }
7703
7704 offset = bnx2_stats_offset_arr[i];
7705 if (stats_len_arr[i] == 4) {
7706 /* 4-byte counter */
7707 buf[i] = (u64) *(hw_stats + offset) +
7708 *(temp_stats + offset);
7709 continue;
7710 }
7711 /* 8-byte counter */
7712 buf[i] = (((u64) *(hw_stats + offset)) << 32) +
7713 *(hw_stats + offset + 1) +
7714 (((u64) *(temp_stats + offset)) << 32) +
7715 *(temp_stats + offset + 1);
7716 }
7717 }
7718
7719 static int
7720 bnx2_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state)
7721 {
7722 struct bnx2 *bp = netdev_priv(dev);
7723
7724 switch (state) {
7725 case ETHTOOL_ID_ACTIVE:
7726 bp->leds_save = BNX2_RD(bp, BNX2_MISC_CFG);
7727 BNX2_WR(bp, BNX2_MISC_CFG, BNX2_MISC_CFG_LEDMODE_MAC);
7728 return 1; /* cycle on/off once per second */
7729
7730 case ETHTOOL_ID_ON:
7731 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE |
7732 BNX2_EMAC_LED_1000MB_OVERRIDE |
7733 BNX2_EMAC_LED_100MB_OVERRIDE |
7734 BNX2_EMAC_LED_10MB_OVERRIDE |
7735 BNX2_EMAC_LED_TRAFFIC_OVERRIDE |
7736 BNX2_EMAC_LED_TRAFFIC);
7737 break;
7738
7739 case ETHTOOL_ID_OFF:
7740 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE);
7741 break;
7742
7743 case ETHTOOL_ID_INACTIVE:
7744 BNX2_WR(bp, BNX2_EMAC_LED, 0);
7745 BNX2_WR(bp, BNX2_MISC_CFG, bp->leds_save);
7746 break;
7747 }
7748
7749 return 0;
7750 }
7751
7752 static int
7753 bnx2_set_features(struct net_device *dev, netdev_features_t features)
7754 {
7755 struct bnx2 *bp = netdev_priv(dev);
7756
7757 /* TSO with VLAN tag won't work with current firmware */
7758 if (features & NETIF_F_HW_VLAN_CTAG_TX)
7759 dev->vlan_features |= (dev->hw_features & NETIF_F_ALL_TSO);
7760 else
7761 dev->vlan_features &= ~NETIF_F_ALL_TSO;
7762
7763 if ((!!(features & NETIF_F_HW_VLAN_CTAG_RX) !=
7764 !!(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG)) &&
7765 netif_running(dev)) {
7766 bnx2_netif_stop(bp, false);
7767 dev->features = features;
7768 bnx2_set_rx_mode(dev);
7769 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);
7770 bnx2_netif_start(bp, false);
7771 return 1;
7772 }
7773
7774 return 0;
7775 }
7776
7777 static void bnx2_get_channels(struct net_device *dev,
7778 struct ethtool_channels *channels)
7779 {
7780 struct bnx2 *bp = netdev_priv(dev);
7781 u32 max_rx_rings = 1;
7782 u32 max_tx_rings = 1;
7783
7784 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
7785 max_rx_rings = RX_MAX_RINGS;
7786 max_tx_rings = TX_MAX_RINGS;
7787 }
7788
7789 channels->max_rx = max_rx_rings;
7790 channels->max_tx = max_tx_rings;
7791 channels->max_other = 0;
7792 channels->max_combined = 0;
7793 channels->rx_count = bp->num_rx_rings;
7794 channels->tx_count = bp->num_tx_rings;
7795 channels->other_count = 0;
7796 channels->combined_count = 0;
7797 }
7798
7799 static int bnx2_set_channels(struct net_device *dev,
7800 struct ethtool_channels *channels)
7801 {
7802 struct bnx2 *bp = netdev_priv(dev);
7803 u32 max_rx_rings = 1;
7804 u32 max_tx_rings = 1;
7805 int rc = 0;
7806
7807 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
7808 max_rx_rings = RX_MAX_RINGS;
7809 max_tx_rings = TX_MAX_RINGS;
7810 }
7811 if (channels->rx_count > max_rx_rings ||
7812 channels->tx_count > max_tx_rings)
7813 return -EINVAL;
7814
7815 bp->num_req_rx_rings = channels->rx_count;
7816 bp->num_req_tx_rings = channels->tx_count;
7817
7818 if (netif_running(dev))
7819 rc = bnx2_change_ring_size(bp, bp->rx_ring_size,
7820 bp->tx_ring_size, true);
7821
7822 return rc;
7823 }
7824
7825 static const struct ethtool_ops bnx2_ethtool_ops = {
7826 .get_drvinfo = bnx2_get_drvinfo,
7827 .get_regs_len = bnx2_get_regs_len,
7828 .get_regs = bnx2_get_regs,
7829 .get_wol = bnx2_get_wol,
7830 .set_wol = bnx2_set_wol,
7831 .nway_reset = bnx2_nway_reset,
7832 .get_link = bnx2_get_link,
7833 .get_eeprom_len = bnx2_get_eeprom_len,
7834 .get_eeprom = bnx2_get_eeprom,
7835 .set_eeprom = bnx2_set_eeprom,
7836 .get_coalesce = bnx2_get_coalesce,
7837 .set_coalesce = bnx2_set_coalesce,
7838 .get_ringparam = bnx2_get_ringparam,
7839 .set_ringparam = bnx2_set_ringparam,
7840 .get_pauseparam = bnx2_get_pauseparam,
7841 .set_pauseparam = bnx2_set_pauseparam,
7842 .self_test = bnx2_self_test,
7843 .get_strings = bnx2_get_strings,
7844 .set_phys_id = bnx2_set_phys_id,
7845 .get_ethtool_stats = bnx2_get_ethtool_stats,
7846 .get_sset_count = bnx2_get_sset_count,
7847 .get_channels = bnx2_get_channels,
7848 .set_channels = bnx2_set_channels,
7849 .get_link_ksettings = bnx2_get_link_ksettings,
7850 .set_link_ksettings = bnx2_set_link_ksettings,
7851 };
7852
7853 /* Called with rtnl_lock */
7854 static int
7855 bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
7856 {
7857 struct mii_ioctl_data *data = if_mii(ifr);
7858 struct bnx2 *bp = netdev_priv(dev);
7859 int err;
7860
7861 switch(cmd) {
7862 case SIOCGMIIPHY:
7863 data->phy_id = bp->phy_addr;
7864
7865 /* fallthru */
7866 case SIOCGMIIREG: {
7867 u32 mii_regval;
7868
7869 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
7870 return -EOPNOTSUPP;
7871
7872 if (!netif_running(dev))
7873 return -EAGAIN;
7874
7875 spin_lock_bh(&bp->phy_lock);
7876 err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);
7877 spin_unlock_bh(&bp->phy_lock);
7878
7879 data->val_out = mii_regval;
7880
7881 return err;
7882 }
7883
7884 case SIOCSMIIREG:
7885 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
7886 return -EOPNOTSUPP;
7887
7888 if (!netif_running(dev))
7889 return -EAGAIN;
7890
7891 spin_lock_bh(&bp->phy_lock);
7892 err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);
7893 spin_unlock_bh(&bp->phy_lock);
7894
7895 return err;
7896
7897 default:
7898 /* do nothing */
7899 break;
7900 }
7901 return -EOPNOTSUPP;
7902 }
7903
7904 /* Called with rtnl_lock */
7905 static int
7906 bnx2_change_mac_addr(struct net_device *dev, void *p)
7907 {
7908 struct sockaddr *addr = p;
7909 struct bnx2 *bp = netdev_priv(dev);
7910
7911 if (!is_valid_ether_addr(addr->sa_data))
7912 return -EADDRNOTAVAIL;
7913
7914 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7915 if (netif_running(dev))
7916 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
7917
7918 return 0;
7919 }
7920
7921 /* Called with rtnl_lock */
7922 static int
7923 bnx2_change_mtu(struct net_device *dev, int new_mtu)
7924 {
7925 struct bnx2 *bp = netdev_priv(dev);
7926
7927 dev->mtu = new_mtu;
7928 return bnx2_change_ring_size(bp, bp->rx_ring_size, bp->tx_ring_size,
7929 false);
7930 }
7931
7932 #ifdef CONFIG_NET_POLL_CONTROLLER
7933 static void
7934 poll_bnx2(struct net_device *dev)
7935 {
7936 struct bnx2 *bp = netdev_priv(dev);
7937 int i;
7938
7939 for (i = 0; i < bp->irq_nvecs; i++) {
7940 struct bnx2_irq *irq = &bp->irq_tbl[i];
7941
7942 disable_irq(irq->vector);
7943 irq->handler(irq->vector, &bp->bnx2_napi[i]);
7944 enable_irq(irq->vector);
7945 }
7946 }
7947 #endif
7948
7949 static void
7950 bnx2_get_5709_media(struct bnx2 *bp)
7951 {
7952 u32 val = BNX2_RD(bp, BNX2_MISC_DUAL_MEDIA_CTRL);
7953 u32 bond_id = val & BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID;
7954 u32 strap;
7955
7956 if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)
7957 return;
7958 else if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {
7959 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7960 return;
7961 }
7962
7963 if (val & BNX2_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE)
7964 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;
7965 else
7966 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;
7967
7968 if (bp->func == 0) {
7969 switch (strap) {
7970 case 0x4:
7971 case 0x5:
7972 case 0x6:
7973 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7974 return;
7975 }
7976 } else {
7977 switch (strap) {
7978 case 0x1:
7979 case 0x2:
7980 case 0x4:
7981 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
7982 return;
7983 }
7984 }
7985 }
7986
7987 static void
7988 bnx2_get_pci_speed(struct bnx2 *bp)
7989 {
7990 u32 reg;
7991
7992 reg = BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS);
7993 if (reg & BNX2_PCICFG_MISC_STATUS_PCIX_DET) {
7994 u32 clkreg;
7995
7996 bp->flags |= BNX2_FLAG_PCIX;
7997
7998 clkreg = BNX2_RD(bp, BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS);
7999
8000 clkreg &= BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET;
8001 switch (clkreg) {
8002 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_133MHZ:
8003 bp->bus_speed_mhz = 133;
8004 break;
8005
8006 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_95MHZ:
8007 bp->bus_speed_mhz = 100;
8008 break;
8009
8010 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_66MHZ:
8011 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_80MHZ:
8012 bp->bus_speed_mhz = 66;
8013 break;
8014
8015 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_48MHZ:
8016 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_55MHZ:
8017 bp->bus_speed_mhz = 50;
8018 break;
8019
8020 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_LOW:
8021 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_32MHZ:
8022 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_38MHZ:
8023 bp->bus_speed_mhz = 33;
8024 break;
8025 }
8026 }
8027 else {
8028 if (reg & BNX2_PCICFG_MISC_STATUS_M66EN)
8029 bp->bus_speed_mhz = 66;
8030 else
8031 bp->bus_speed_mhz = 33;
8032 }
8033
8034 if (reg & BNX2_PCICFG_MISC_STATUS_32BIT_DET)
8035 bp->flags |= BNX2_FLAG_PCI_32BIT;
8036
8037 }
8038
8039 static void
8040 bnx2_read_vpd_fw_ver(struct bnx2 *bp)
8041 {
8042 int rc, i, j;
8043 u8 *data;
8044 unsigned int block_end, rosize, len;
8045
8046 #define BNX2_VPD_NVRAM_OFFSET 0x300
8047 #define BNX2_VPD_LEN 128
8048 #define BNX2_MAX_VER_SLEN 30
8049
8050 data = kmalloc(256, GFP_KERNEL);
8051 if (!data)
8052 return;
8053
8054 rc = bnx2_nvram_read(bp, BNX2_VPD_NVRAM_OFFSET, data + BNX2_VPD_LEN,
8055 BNX2_VPD_LEN);
8056 if (rc)
8057 goto vpd_done;
8058
8059 for (i = 0; i < BNX2_VPD_LEN; i += 4) {
8060 data[i] = data[i + BNX2_VPD_LEN + 3];
8061 data[i + 1] = data[i + BNX2_VPD_LEN + 2];
8062 data[i + 2] = data[i + BNX2_VPD_LEN + 1];
8063 data[i + 3] = data[i + BNX2_VPD_LEN];
8064 }
8065
8066 i = pci_vpd_find_tag(data, 0, BNX2_VPD_LEN, PCI_VPD_LRDT_RO_DATA);
8067 if (i < 0)
8068 goto vpd_done;
8069
8070 rosize = pci_vpd_lrdt_size(&data[i]);
8071 i += PCI_VPD_LRDT_TAG_SIZE;
8072 block_end = i + rosize;
8073
8074 if (block_end > BNX2_VPD_LEN)
8075 goto vpd_done;
8076
8077 j = pci_vpd_find_info_keyword(data, i, rosize,
8078 PCI_VPD_RO_KEYWORD_MFR_ID);
8079 if (j < 0)
8080 goto vpd_done;
8081
8082 len = pci_vpd_info_field_size(&data[j]);
8083
8084 j += PCI_VPD_INFO_FLD_HDR_SIZE;
8085 if (j + len > block_end || len != 4 ||
8086 memcmp(&data[j], "1028", 4))
8087 goto vpd_done;
8088
8089 j = pci_vpd_find_info_keyword(data, i, rosize,
8090 PCI_VPD_RO_KEYWORD_VENDOR0);
8091 if (j < 0)
8092 goto vpd_done;
8093
8094 len = pci_vpd_info_field_size(&data[j]);
8095
8096 j += PCI_VPD_INFO_FLD_HDR_SIZE;
8097 if (j + len > block_end || len > BNX2_MAX_VER_SLEN)
8098 goto vpd_done;
8099
8100 memcpy(bp->fw_version, &data[j], len);
8101 bp->fw_version[len] = ' ';
8102
8103 vpd_done:
8104 kfree(data);
8105 }
8106
8107 static int
8108 bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
8109 {
8110 struct bnx2 *bp;
8111 int rc, i, j;
8112 u32 reg;
8113 u64 dma_mask, persist_dma_mask;
8114 int err;
8115
8116 SET_NETDEV_DEV(dev, &pdev->dev);
8117 bp = netdev_priv(dev);
8118
8119 bp->flags = 0;
8120 bp->phy_flags = 0;
8121
8122 bp->temp_stats_blk =
8123 kzalloc(sizeof(struct statistics_block), GFP_KERNEL);
8124
8125 if (!bp->temp_stats_blk) {
8126 rc = -ENOMEM;
8127 goto err_out;
8128 }
8129
8130 /* enable device (incl. PCI PM wakeup), and bus-mastering */
8131 rc = pci_enable_device(pdev);
8132 if (rc) {
8133 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
8134 goto err_out;
8135 }
8136
8137 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
8138 dev_err(&pdev->dev,
8139 "Cannot find PCI device base address, aborting\n");
8140 rc = -ENODEV;
8141 goto err_out_disable;
8142 }
8143
8144 rc = pci_request_regions(pdev, DRV_MODULE_NAME);
8145 if (rc) {
8146 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
8147 goto err_out_disable;
8148 }
8149
8150 pci_set_master(pdev);
8151
8152 bp->pm_cap = pdev->pm_cap;
8153 if (bp->pm_cap == 0) {
8154 dev_err(&pdev->dev,
8155 "Cannot find power management capability, aborting\n");
8156 rc = -EIO;
8157 goto err_out_release;
8158 }
8159
8160 bp->dev = dev;
8161 bp->pdev = pdev;
8162
8163 spin_lock_init(&bp->phy_lock);
8164 spin_lock_init(&bp->indirect_lock);
8165 #ifdef BCM_CNIC
8166 mutex_init(&bp->cnic_lock);
8167 #endif
8168 INIT_WORK(&bp->reset_task, bnx2_reset_task);
8169
8170 bp->regview = pci_iomap(pdev, 0, MB_GET_CID_ADDR(TX_TSS_CID +
8171 TX_MAX_TSS_RINGS + 1));
8172 if (!bp->regview) {
8173 dev_err(&pdev->dev, "Cannot map register space, aborting\n");
8174 rc = -ENOMEM;
8175 goto err_out_release;
8176 }
8177
8178 /* Configure byte swap and enable write to the reg_window registers.
8179 * Rely on CPU to do target byte swapping on big endian systems
8180 * The chip's target access swapping will not swap all accesses
8181 */
8182 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG,
8183 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
8184 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP);
8185
8186 bp->chip_id = BNX2_RD(bp, BNX2_MISC_ID);
8187
8188 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {
8189 if (!pci_is_pcie(pdev)) {
8190 dev_err(&pdev->dev, "Not PCIE, aborting\n");
8191 rc = -EIO;
8192 goto err_out_unmap;
8193 }
8194 bp->flags |= BNX2_FLAG_PCIE;
8195 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)
8196 bp->flags |= BNX2_FLAG_JUMBO_BROKEN;
8197
8198 /* AER (Advanced Error Reporting) hooks */
8199 err = pci_enable_pcie_error_reporting(pdev);
8200 if (!err)
8201 bp->flags |= BNX2_FLAG_AER_ENABLED;
8202
8203 } else {
8204 bp->pcix_cap = pci_find_capability(pdev, PCI_CAP_ID_PCIX);
8205 if (bp->pcix_cap == 0) {
8206 dev_err(&pdev->dev,
8207 "Cannot find PCIX capability, aborting\n");
8208 rc = -EIO;
8209 goto err_out_unmap;
8210 }
8211 bp->flags |= BNX2_FLAG_BROKEN_STATS;
8212 }
8213
8214 if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&
8215 BNX2_CHIP_REV(bp) != BNX2_CHIP_REV_Ax) {
8216 if (pdev->msix_cap)
8217 bp->flags |= BNX2_FLAG_MSIX_CAP;
8218 }
8219
8220 if (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0 &&
8221 BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A1) {
8222 if (pdev->msi_cap)
8223 bp->flags |= BNX2_FLAG_MSI_CAP;
8224 }
8225
8226 /* 5708 cannot support DMA addresses > 40-bit. */
8227 if (BNX2_CHIP(bp) == BNX2_CHIP_5708)
8228 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
8229 else
8230 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
8231
8232 /* Configure DMA attributes. */
8233 if (pci_set_dma_mask(pdev, dma_mask) == 0) {
8234 dev->features |= NETIF_F_HIGHDMA;
8235 rc = pci_set_consistent_dma_mask(pdev, persist_dma_mask);
8236 if (rc) {
8237 dev_err(&pdev->dev,
8238 "pci_set_consistent_dma_mask failed, aborting\n");
8239 goto err_out_unmap;
8240 }
8241 } else if ((rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
8242 dev_err(&pdev->dev, "System does not support DMA, aborting\n");
8243 goto err_out_unmap;
8244 }
8245
8246 if (!(bp->flags & BNX2_FLAG_PCIE))
8247 bnx2_get_pci_speed(bp);
8248
8249 /* 5706A0 may falsely detect SERR and PERR. */
8250 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
8251 reg = BNX2_RD(bp, PCI_COMMAND);
8252 reg &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
8253 BNX2_WR(bp, PCI_COMMAND, reg);
8254 } else if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) &&
8255 !(bp->flags & BNX2_FLAG_PCIX)) {
8256
8257 dev_err(&pdev->dev,
8258 "5706 A1 can only be used in a PCIX bus, aborting\n");
8259 goto err_out_unmap;
8260 }
8261
8262 bnx2_init_nvram(bp);
8263
8264 reg = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_SIGNATURE);
8265
8266 if (bnx2_reg_rd_ind(bp, BNX2_MCP_TOE_ID) & BNX2_MCP_TOE_ID_FUNCTION_ID)
8267 bp->func = 1;
8268
8269 if ((reg & BNX2_SHM_HDR_SIGNATURE_SIG_MASK) ==
8270 BNX2_SHM_HDR_SIGNATURE_SIG) {
8271 u32 off = bp->func << 2;
8272
8273 bp->shmem_base = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_ADDR_0 + off);
8274 } else
8275 bp->shmem_base = HOST_VIEW_SHMEM_BASE;
8276
8277 /* Get the permanent MAC address. First we need to make sure the
8278 * firmware is actually running.
8279 */
8280 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE);
8281
8282 if ((reg & BNX2_DEV_INFO_SIGNATURE_MAGIC_MASK) !=
8283 BNX2_DEV_INFO_SIGNATURE_MAGIC) {
8284 dev_err(&pdev->dev, "Firmware not running, aborting\n");
8285 rc = -ENODEV;
8286 goto err_out_unmap;
8287 }
8288
8289 bnx2_read_vpd_fw_ver(bp);
8290
8291 j = strlen(bp->fw_version);
8292 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_BC_REV);
8293 for (i = 0; i < 3 && j < 24; i++) {
8294 u8 num, k, skip0;
8295
8296 if (i == 0) {
8297 bp->fw_version[j++] = 'b';
8298 bp->fw_version[j++] = 'c';
8299 bp->fw_version[j++] = ' ';
8300 }
8301 num = (u8) (reg >> (24 - (i * 8)));
8302 for (k = 100, skip0 = 1; k >= 1; num %= k, k /= 10) {
8303 if (num >= k || !skip0 || k == 1) {
8304 bp->fw_version[j++] = (num / k) + '0';
8305 skip0 = 0;
8306 }
8307 }
8308 if (i != 2)
8309 bp->fw_version[j++] = '.';
8310 }
8311 reg = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);
8312 if (reg & BNX2_PORT_FEATURE_WOL_ENABLED)
8313 bp->wol = 1;
8314
8315 if (reg & BNX2_PORT_FEATURE_ASF_ENABLED) {
8316 bp->flags |= BNX2_FLAG_ASF_ENABLE;
8317
8318 for (i = 0; i < 30; i++) {
8319 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
8320 if (reg & BNX2_CONDITION_MFW_RUN_MASK)
8321 break;
8322 msleep(10);
8323 }
8324 }
8325 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
8326 reg &= BNX2_CONDITION_MFW_RUN_MASK;
8327 if (reg != BNX2_CONDITION_MFW_RUN_UNKNOWN &&
8328 reg != BNX2_CONDITION_MFW_RUN_NONE) {
8329 u32 addr = bnx2_shmem_rd(bp, BNX2_MFW_VER_PTR);
8330
8331 if (j < 32)
8332 bp->fw_version[j++] = ' ';
8333 for (i = 0; i < 3 && j < 28; i++) {
8334 reg = bnx2_reg_rd_ind(bp, addr + i * 4);
8335 reg = be32_to_cpu(reg);
8336 memcpy(&bp->fw_version[j], &reg, 4);
8337 j += 4;
8338 }
8339 }
8340
8341 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_UPPER);
8342 bp->mac_addr[0] = (u8) (reg >> 8);
8343 bp->mac_addr[1] = (u8) reg;
8344
8345 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_LOWER);
8346 bp->mac_addr[2] = (u8) (reg >> 24);
8347 bp->mac_addr[3] = (u8) (reg >> 16);
8348 bp->mac_addr[4] = (u8) (reg >> 8);
8349 bp->mac_addr[5] = (u8) reg;
8350
8351 bp->tx_ring_size = BNX2_MAX_TX_DESC_CNT;
8352 bnx2_set_rx_ring_size(bp, 255);
8353
8354 bp->tx_quick_cons_trip_int = 2;
8355 bp->tx_quick_cons_trip = 20;
8356 bp->tx_ticks_int = 18;
8357 bp->tx_ticks = 80;
8358
8359 bp->rx_quick_cons_trip_int = 2;
8360 bp->rx_quick_cons_trip = 12;
8361 bp->rx_ticks_int = 18;
8362 bp->rx_ticks = 18;
8363
8364 bp->stats_ticks = USEC_PER_SEC & BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
8365
8366 bp->current_interval = BNX2_TIMER_INTERVAL;
8367
8368 bp->phy_addr = 1;
8369
8370 /* allocate stats_blk */
8371 rc = bnx2_alloc_stats_blk(dev);
8372 if (rc)
8373 goto err_out_unmap;
8374
8375 /* Disable WOL support if we are running on a SERDES chip. */
8376 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
8377 bnx2_get_5709_media(bp);
8378 else if (BNX2_CHIP_BOND(bp) & BNX2_CHIP_BOND_SERDES_BIT)
8379 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
8380
8381 bp->phy_port = PORT_TP;
8382 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
8383 bp->phy_port = PORT_FIBRE;
8384 reg = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
8385 if (!(reg & BNX2_SHARED_HW_CFG_GIG_LINK_ON_VAUX)) {
8386 bp->flags |= BNX2_FLAG_NO_WOL;
8387 bp->wol = 0;
8388 }
8389 if (BNX2_CHIP(bp) == BNX2_CHIP_5706) {
8390 /* Don't do parallel detect on this board because of
8391 * some board problems. The link will not go down
8392 * if we do parallel detect.
8393 */
8394 if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
8395 pdev->subsystem_device == 0x310c)
8396 bp->phy_flags |= BNX2_PHY_FLAG_NO_PARALLEL;
8397 } else {
8398 bp->phy_addr = 2;
8399 if (reg & BNX2_SHARED_HW_CFG_PHY_2_5G)
8400 bp->phy_flags |= BNX2_PHY_FLAG_2_5G_CAPABLE;
8401 }
8402 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5706 ||
8403 BNX2_CHIP(bp) == BNX2_CHIP_5708)
8404 bp->phy_flags |= BNX2_PHY_FLAG_CRC_FIX;
8405 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&
8406 (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax ||
8407 BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Bx))
8408 bp->phy_flags |= BNX2_PHY_FLAG_DIS_EARLY_DAC;
8409
8410 bnx2_init_fw_cap(bp);
8411
8412 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||
8413 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||
8414 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1) ||
8415 !(BNX2_RD(bp, BNX2_PCI_CONFIG_3) & BNX2_PCI_CONFIG_3_VAUX_PRESET)) {
8416 bp->flags |= BNX2_FLAG_NO_WOL;
8417 bp->wol = 0;
8418 }
8419
8420 if (bp->flags & BNX2_FLAG_NO_WOL)
8421 device_set_wakeup_capable(&bp->pdev->dev, false);
8422 else
8423 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);
8424
8425 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {
8426 bp->tx_quick_cons_trip_int =
8427 bp->tx_quick_cons_trip;
8428 bp->tx_ticks_int = bp->tx_ticks;
8429 bp->rx_quick_cons_trip_int =
8430 bp->rx_quick_cons_trip;
8431 bp->rx_ticks_int = bp->rx_ticks;
8432 bp->comp_prod_trip_int = bp->comp_prod_trip;
8433 bp->com_ticks_int = bp->com_ticks;
8434 bp->cmd_ticks_int = bp->cmd_ticks;
8435 }
8436
8437 /* Disable MSI on 5706 if AMD 8132 bridge is found.
8438 *
8439 * MSI is defined to be 32-bit write. The 5706 does 64-bit MSI writes
8440 * with byte enables disabled on the unused 32-bit word. This is legal
8441 * but causes problems on the AMD 8132 which will eventually stop
8442 * responding after a while.
8443 *
8444 * AMD believes this incompatibility is unique to the 5706, and
8445 * prefers to locally disable MSI rather than globally disabling it.
8446 */
8447 if (BNX2_CHIP(bp) == BNX2_CHIP_5706 && disable_msi == 0) {
8448 struct pci_dev *amd_8132 = NULL;
8449
8450 while ((amd_8132 = pci_get_device(PCI_VENDOR_ID_AMD,
8451 PCI_DEVICE_ID_AMD_8132_BRIDGE,
8452 amd_8132))) {
8453
8454 if (amd_8132->revision >= 0x10 &&
8455 amd_8132->revision <= 0x13) {
8456 disable_msi = 1;
8457 pci_dev_put(amd_8132);
8458 break;
8459 }
8460 }
8461 }
8462
8463 bnx2_set_default_link(bp);
8464 bp->req_flow_ctrl = FLOW_CTRL_RX | FLOW_CTRL_TX;
8465
8466 timer_setup(&bp->timer, bnx2_timer, 0);
8467 bp->timer.expires = RUN_AT(BNX2_TIMER_INTERVAL);
8468
8469 #ifdef BCM_CNIC
8470 if (bnx2_shmem_rd(bp, BNX2_ISCSI_INITIATOR) & BNX2_ISCSI_INITIATOR_EN)
8471 bp->cnic_eth_dev.max_iscsi_conn =
8472 (bnx2_shmem_rd(bp, BNX2_ISCSI_MAX_CONN) &
8473 BNX2_ISCSI_MAX_CONN_MASK) >> BNX2_ISCSI_MAX_CONN_SHIFT;
8474 bp->cnic_probe = bnx2_cnic_probe;
8475 #endif
8476 pci_save_state(pdev);
8477
8478 return 0;
8479
8480 err_out_unmap:
8481 if (bp->flags & BNX2_FLAG_AER_ENABLED) {
8482 pci_disable_pcie_error_reporting(pdev);
8483 bp->flags &= ~BNX2_FLAG_AER_ENABLED;
8484 }
8485
8486 pci_iounmap(pdev, bp->regview);
8487 bp->regview = NULL;
8488
8489 err_out_release:
8490 pci_release_regions(pdev);
8491
8492 err_out_disable:
8493 pci_disable_device(pdev);
8494
8495 err_out:
8496 kfree(bp->temp_stats_blk);
8497
8498 return rc;
8499 }
8500
8501 static char *
8502 bnx2_bus_string(struct bnx2 *bp, char *str)
8503 {
8504 char *s = str;
8505
8506 if (bp->flags & BNX2_FLAG_PCIE) {
8507 s += sprintf(s, "PCI Express");
8508 } else {
8509 s += sprintf(s, "PCI");
8510 if (bp->flags & BNX2_FLAG_PCIX)
8511 s += sprintf(s, "-X");
8512 if (bp->flags & BNX2_FLAG_PCI_32BIT)
8513 s += sprintf(s, " 32-bit");
8514 else
8515 s += sprintf(s, " 64-bit");
8516 s += sprintf(s, " %dMHz", bp->bus_speed_mhz);
8517 }
8518 return str;
8519 }
8520
8521 static void
8522 bnx2_del_napi(struct bnx2 *bp)
8523 {
8524 int i;
8525
8526 for (i = 0; i < bp->irq_nvecs; i++)
8527 netif_napi_del(&bp->bnx2_napi[i].napi);
8528 }
8529
8530 static void
8531 bnx2_init_napi(struct bnx2 *bp)
8532 {
8533 int i;
8534
8535 for (i = 0; i < bp->irq_nvecs; i++) {
8536 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
8537 int (*poll)(struct napi_struct *, int);
8538
8539 if (i == 0)
8540 poll = bnx2_poll;
8541 else
8542 poll = bnx2_poll_msix;
8543
8544 netif_napi_add(bp->dev, &bp->bnx2_napi[i].napi, poll, 64);
8545 bnapi->bp = bp;
8546 }
8547 }
8548
8549 static const struct net_device_ops bnx2_netdev_ops = {
8550 .ndo_open = bnx2_open,
8551 .ndo_start_xmit = bnx2_start_xmit,
8552 .ndo_stop = bnx2_close,
8553 .ndo_get_stats64 = bnx2_get_stats64,
8554 .ndo_set_rx_mode = bnx2_set_rx_mode,
8555 .ndo_do_ioctl = bnx2_ioctl,
8556 .ndo_validate_addr = eth_validate_addr,
8557 .ndo_set_mac_address = bnx2_change_mac_addr,
8558 .ndo_change_mtu = bnx2_change_mtu,
8559 .ndo_set_features = bnx2_set_features,
8560 .ndo_tx_timeout = bnx2_tx_timeout,
8561 #ifdef CONFIG_NET_POLL_CONTROLLER
8562 .ndo_poll_controller = poll_bnx2,
8563 #endif
8564 };
8565
8566 static int
8567 bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
8568 {
8569 static int version_printed = 0;
8570 struct net_device *dev;
8571 struct bnx2 *bp;
8572 int rc;
8573 char str[40];
8574
8575 if (version_printed++ == 0)
8576 pr_info("%s", version);
8577
8578 /* dev zeroed in init_etherdev */
8579 dev = alloc_etherdev_mq(sizeof(*bp), TX_MAX_RINGS);
8580 if (!dev)
8581 return -ENOMEM;
8582
8583 rc = bnx2_init_board(pdev, dev);
8584 if (rc < 0)
8585 goto err_free;
8586
8587 dev->netdev_ops = &bnx2_netdev_ops;
8588 dev->watchdog_timeo = TX_TIMEOUT;
8589 dev->ethtool_ops = &bnx2_ethtool_ops;
8590
8591 bp = netdev_priv(dev);
8592
8593 pci_set_drvdata(pdev, dev);
8594
8595 /*
8596 * In-flight DMA from 1st kernel could continue going in kdump kernel.
8597 * New io-page table has been created before bnx2 does reset at open stage.
8598 * We have to wait for the in-flight DMA to complete to avoid it look up
8599 * into the newly created io-page table.
8600 */
8601 if (is_kdump_kernel())
8602 bnx2_wait_dma_complete(bp);
8603
8604 memcpy(dev->dev_addr, bp->mac_addr, ETH_ALEN);
8605
8606 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
8607 NETIF_F_TSO | NETIF_F_TSO_ECN |
8608 NETIF_F_RXHASH | NETIF_F_RXCSUM;
8609
8610 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)
8611 dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
8612
8613 dev->vlan_features = dev->hw_features;
8614 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
8615 dev->features |= dev->hw_features;
8616 dev->priv_flags |= IFF_UNICAST_FLT;
8617 dev->min_mtu = MIN_ETHERNET_PACKET_SIZE;
8618 dev->max_mtu = MAX_ETHERNET_JUMBO_PACKET_SIZE;
8619
8620 if (!(bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
8621 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
8622
8623 if ((rc = register_netdev(dev))) {
8624 dev_err(&pdev->dev, "Cannot register net device\n");
8625 goto error;
8626 }
8627
8628 netdev_info(dev, "%s (%c%d) %s found at mem %lx, IRQ %d, "
8629 "node addr %pM\n", board_info[ent->driver_data].name,
8630 ((BNX2_CHIP_ID(bp) & 0xf000) >> 12) + 'A',
8631 ((BNX2_CHIP_ID(bp) & 0x0ff0) >> 4),
8632 bnx2_bus_string(bp, str), (long)pci_resource_start(pdev, 0),
8633 pdev->irq, dev->dev_addr);
8634
8635 return 0;
8636
8637 error:
8638 pci_iounmap(pdev, bp->regview);
8639 pci_release_regions(pdev);
8640 pci_disable_device(pdev);
8641 err_free:
8642 bnx2_free_stats_blk(dev);
8643 free_netdev(dev);
8644 return rc;
8645 }
8646
8647 static void
8648 bnx2_remove_one(struct pci_dev *pdev)
8649 {
8650 struct net_device *dev = pci_get_drvdata(pdev);
8651 struct bnx2 *bp = netdev_priv(dev);
8652
8653 unregister_netdev(dev);
8654
8655 del_timer_sync(&bp->timer);
8656 cancel_work_sync(&bp->reset_task);
8657
8658 pci_iounmap(bp->pdev, bp->regview);
8659
8660 bnx2_free_stats_blk(dev);
8661 kfree(bp->temp_stats_blk);
8662
8663 if (bp->flags & BNX2_FLAG_AER_ENABLED) {
8664 pci_disable_pcie_error_reporting(pdev);
8665 bp->flags &= ~BNX2_FLAG_AER_ENABLED;
8666 }
8667
8668 bnx2_release_firmware(bp);
8669
8670 free_netdev(dev);
8671
8672 pci_release_regions(pdev);
8673 pci_disable_device(pdev);
8674 }
8675
8676 #ifdef CONFIG_PM_SLEEP
8677 static int
8678 bnx2_suspend(struct device *device)
8679 {
8680 struct pci_dev *pdev = to_pci_dev(device);
8681 struct net_device *dev = pci_get_drvdata(pdev);
8682 struct bnx2 *bp = netdev_priv(dev);
8683
8684 if (netif_running(dev)) {
8685 cancel_work_sync(&bp->reset_task);
8686 bnx2_netif_stop(bp, true);
8687 netif_device_detach(dev);
8688 del_timer_sync(&bp->timer);
8689 bnx2_shutdown_chip(bp);
8690 __bnx2_free_irq(bp);
8691 bnx2_free_skbs(bp);
8692 }
8693 bnx2_setup_wol(bp);
8694 return 0;
8695 }
8696
8697 static int
8698 bnx2_resume(struct device *device)
8699 {
8700 struct pci_dev *pdev = to_pci_dev(device);
8701 struct net_device *dev = pci_get_drvdata(pdev);
8702 struct bnx2 *bp = netdev_priv(dev);
8703
8704 if (!netif_running(dev))
8705 return 0;
8706
8707 bnx2_set_power_state(bp, PCI_D0);
8708 netif_device_attach(dev);
8709 bnx2_request_irq(bp);
8710 bnx2_init_nic(bp, 1);
8711 bnx2_netif_start(bp, true);
8712 return 0;
8713 }
8714
8715 static SIMPLE_DEV_PM_OPS(bnx2_pm_ops, bnx2_suspend, bnx2_resume);
8716 #define BNX2_PM_OPS (&bnx2_pm_ops)
8717
8718 #else
8719
8720 #define BNX2_PM_OPS NULL
8721
8722 #endif /* CONFIG_PM_SLEEP */
8723 /**
8724 * bnx2_io_error_detected - called when PCI error is detected
8725 * @pdev: Pointer to PCI device
8726 * @state: The current pci connection state
8727 *
8728 * This function is called after a PCI bus error affecting
8729 * this device has been detected.
8730 */
8731 static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
8732 pci_channel_state_t state)
8733 {
8734 struct net_device *dev = pci_get_drvdata(pdev);
8735 struct bnx2 *bp = netdev_priv(dev);
8736
8737 rtnl_lock();
8738 netif_device_detach(dev);
8739
8740 if (state == pci_channel_io_perm_failure) {
8741 rtnl_unlock();
8742 return PCI_ERS_RESULT_DISCONNECT;
8743 }
8744
8745 if (netif_running(dev)) {
8746 bnx2_netif_stop(bp, true);
8747 del_timer_sync(&bp->timer);
8748 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
8749 }
8750
8751 pci_disable_device(pdev);
8752 rtnl_unlock();
8753
8754 /* Request a slot slot reset. */
8755 return PCI_ERS_RESULT_NEED_RESET;
8756 }
8757
8758 /**
8759 * bnx2_io_slot_reset - called after the pci bus has been reset.
8760 * @pdev: Pointer to PCI device
8761 *
8762 * Restart the card from scratch, as if from a cold-boot.
8763 */
8764 static pci_ers_result_t bnx2_io_slot_reset(struct pci_dev *pdev)
8765 {
8766 struct net_device *dev = pci_get_drvdata(pdev);
8767 struct bnx2 *bp = netdev_priv(dev);
8768 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
8769 int err = 0;
8770
8771 rtnl_lock();
8772 if (pci_enable_device(pdev)) {
8773 dev_err(&pdev->dev,
8774 "Cannot re-enable PCI device after reset\n");
8775 } else {
8776 pci_set_master(pdev);
8777 pci_restore_state(pdev);
8778 pci_save_state(pdev);
8779
8780 if (netif_running(dev))
8781 err = bnx2_init_nic(bp, 1);
8782
8783 if (!err)
8784 result = PCI_ERS_RESULT_RECOVERED;
8785 }
8786
8787 if (result != PCI_ERS_RESULT_RECOVERED && netif_running(dev)) {
8788 bnx2_napi_enable(bp);
8789 dev_close(dev);
8790 }
8791 rtnl_unlock();
8792
8793 if (!(bp->flags & BNX2_FLAG_AER_ENABLED))
8794 return result;
8795
8796 return result;
8797 }
8798
8799 /**
8800 * bnx2_io_resume - called when traffic can start flowing again.
8801 * @pdev: Pointer to PCI device
8802 *
8803 * This callback is called when the error recovery driver tells us that
8804 * its OK to resume normal operation.
8805 */
8806 static void bnx2_io_resume(struct pci_dev *pdev)
8807 {
8808 struct net_device *dev = pci_get_drvdata(pdev);
8809 struct bnx2 *bp = netdev_priv(dev);
8810
8811 rtnl_lock();
8812 if (netif_running(dev))
8813 bnx2_netif_start(bp, true);
8814
8815 netif_device_attach(dev);
8816 rtnl_unlock();
8817 }
8818
8819 static void bnx2_shutdown(struct pci_dev *pdev)
8820 {
8821 struct net_device *dev = pci_get_drvdata(pdev);
8822 struct bnx2 *bp;
8823
8824 if (!dev)
8825 return;
8826
8827 bp = netdev_priv(dev);
8828 if (!bp)
8829 return;
8830
8831 rtnl_lock();
8832 if (netif_running(dev))
8833 dev_close(bp->dev);
8834
8835 if (system_state == SYSTEM_POWER_OFF)
8836 bnx2_set_power_state(bp, PCI_D3hot);
8837
8838 rtnl_unlock();
8839 }
8840
8841 static const struct pci_error_handlers bnx2_err_handler = {
8842 .error_detected = bnx2_io_error_detected,
8843 .slot_reset = bnx2_io_slot_reset,
8844 .resume = bnx2_io_resume,
8845 };
8846
8847 static struct pci_driver bnx2_pci_driver = {
8848 .name = DRV_MODULE_NAME,
8849 .id_table = bnx2_pci_tbl,
8850 .probe = bnx2_init_one,
8851 .remove = bnx2_remove_one,
8852 .driver.pm = BNX2_PM_OPS,
8853 .err_handler = &bnx2_err_handler,
8854 .shutdown = bnx2_shutdown,
8855 };
8856
8857 module_pci_driver(bnx2_pci_driver);
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