1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2010 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include <linux/netdevice.h>
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <linux/if_vlan.h>
12 #include "qlcnic.h"
13
14 struct crb_addr_pair {
15 u32 addr;
16 u32 data;
17 };
18
19 #define QLCNIC_MAX_CRB_XFORM 60
20 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
21
22 #define crb_addr_transform(name) \
23 (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
24 QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
25
26 #define QLCNIC_ADDR_ERROR (0xffffffff)
27
28 static void
29 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
30 struct qlcnic_host_rds_ring *rds_ring);
31
32 static int
33 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
34
crb_addr_transform_setup(void)35 static void crb_addr_transform_setup(void)
36 {
37 crb_addr_transform(XDMA);
38 crb_addr_transform(TIMR);
39 crb_addr_transform(SRE);
40 crb_addr_transform(SQN3);
41 crb_addr_transform(SQN2);
42 crb_addr_transform(SQN1);
43 crb_addr_transform(SQN0);
44 crb_addr_transform(SQS3);
45 crb_addr_transform(SQS2);
46 crb_addr_transform(SQS1);
47 crb_addr_transform(SQS0);
48 crb_addr_transform(RPMX7);
49 crb_addr_transform(RPMX6);
50 crb_addr_transform(RPMX5);
51 crb_addr_transform(RPMX4);
52 crb_addr_transform(RPMX3);
53 crb_addr_transform(RPMX2);
54 crb_addr_transform(RPMX1);
55 crb_addr_transform(RPMX0);
56 crb_addr_transform(ROMUSB);
57 crb_addr_transform(SN);
58 crb_addr_transform(QMN);
59 crb_addr_transform(QMS);
60 crb_addr_transform(PGNI);
61 crb_addr_transform(PGND);
62 crb_addr_transform(PGN3);
63 crb_addr_transform(PGN2);
64 crb_addr_transform(PGN1);
65 crb_addr_transform(PGN0);
66 crb_addr_transform(PGSI);
67 crb_addr_transform(PGSD);
68 crb_addr_transform(PGS3);
69 crb_addr_transform(PGS2);
70 crb_addr_transform(PGS1);
71 crb_addr_transform(PGS0);
72 crb_addr_transform(PS);
73 crb_addr_transform(PH);
74 crb_addr_transform(NIU);
75 crb_addr_transform(I2Q);
76 crb_addr_transform(EG);
77 crb_addr_transform(MN);
78 crb_addr_transform(MS);
79 crb_addr_transform(CAS2);
80 crb_addr_transform(CAS1);
81 crb_addr_transform(CAS0);
82 crb_addr_transform(CAM);
83 crb_addr_transform(C2C1);
84 crb_addr_transform(C2C0);
85 crb_addr_transform(SMB);
86 crb_addr_transform(OCM0);
87 crb_addr_transform(I2C0);
88 }
89
qlcnic_release_rx_buffers(struct qlcnic_adapter * adapter)90 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
91 {
92 struct qlcnic_recv_context *recv_ctx;
93 struct qlcnic_host_rds_ring *rds_ring;
94 struct qlcnic_rx_buffer *rx_buf;
95 int i, ring;
96
97 recv_ctx = &adapter->recv_ctx;
98 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
99 rds_ring = &recv_ctx->rds_rings[ring];
100 for (i = 0; i < rds_ring->num_desc; ++i) {
101 rx_buf = &(rds_ring->rx_buf_arr[i]);
102 if (rx_buf->skb == NULL)
103 continue;
104
105 pci_unmap_single(adapter->pdev,
106 rx_buf->dma,
107 rds_ring->dma_size,
108 PCI_DMA_FROMDEVICE);
109
110 dev_kfree_skb_any(rx_buf->skb);
111 }
112 }
113 }
114
qlcnic_reset_rx_buffers_list(struct qlcnic_adapter * adapter)115 void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
116 {
117 struct qlcnic_recv_context *recv_ctx;
118 struct qlcnic_host_rds_ring *rds_ring;
119 struct qlcnic_rx_buffer *rx_buf;
120 int i, ring;
121
122 recv_ctx = &adapter->recv_ctx;
123 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
124 rds_ring = &recv_ctx->rds_rings[ring];
125
126 INIT_LIST_HEAD(&rds_ring->free_list);
127
128 rx_buf = rds_ring->rx_buf_arr;
129 for (i = 0; i < rds_ring->num_desc; i++) {
130 list_add_tail(&rx_buf->list,
131 &rds_ring->free_list);
132 rx_buf++;
133 }
134 }
135 }
136
qlcnic_release_tx_buffers(struct qlcnic_adapter * adapter)137 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
138 {
139 struct qlcnic_cmd_buffer *cmd_buf;
140 struct qlcnic_skb_frag *buffrag;
141 int i, j;
142 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
143
144 cmd_buf = tx_ring->cmd_buf_arr;
145 for (i = 0; i < tx_ring->num_desc; i++) {
146 buffrag = cmd_buf->frag_array;
147 if (buffrag->dma) {
148 pci_unmap_single(adapter->pdev, buffrag->dma,
149 buffrag->length, PCI_DMA_TODEVICE);
150 buffrag->dma = 0ULL;
151 }
152 for (j = 0; j < cmd_buf->frag_count; j++) {
153 buffrag++;
154 if (buffrag->dma) {
155 pci_unmap_page(adapter->pdev, buffrag->dma,
156 buffrag->length,
157 PCI_DMA_TODEVICE);
158 buffrag->dma = 0ULL;
159 }
160 }
161 if (cmd_buf->skb) {
162 dev_kfree_skb_any(cmd_buf->skb);
163 cmd_buf->skb = NULL;
164 }
165 cmd_buf++;
166 }
167 }
168
qlcnic_free_sw_resources(struct qlcnic_adapter * adapter)169 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
170 {
171 struct qlcnic_recv_context *recv_ctx;
172 struct qlcnic_host_rds_ring *rds_ring;
173 struct qlcnic_host_tx_ring *tx_ring;
174 int ring;
175
176 recv_ctx = &adapter->recv_ctx;
177
178 if (recv_ctx->rds_rings == NULL)
179 goto skip_rds;
180
181 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
182 rds_ring = &recv_ctx->rds_rings[ring];
183 vfree(rds_ring->rx_buf_arr);
184 rds_ring->rx_buf_arr = NULL;
185 }
186 kfree(recv_ctx->rds_rings);
187
188 skip_rds:
189 if (adapter->tx_ring == NULL)
190 return;
191
192 tx_ring = adapter->tx_ring;
193 vfree(tx_ring->cmd_buf_arr);
194 tx_ring->cmd_buf_arr = NULL;
195 kfree(adapter->tx_ring);
196 adapter->tx_ring = NULL;
197 }
198
qlcnic_alloc_sw_resources(struct qlcnic_adapter * adapter)199 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
200 {
201 struct qlcnic_recv_context *recv_ctx;
202 struct qlcnic_host_rds_ring *rds_ring;
203 struct qlcnic_host_sds_ring *sds_ring;
204 struct qlcnic_host_tx_ring *tx_ring;
205 struct qlcnic_rx_buffer *rx_buf;
206 int ring, i, size;
207
208 struct qlcnic_cmd_buffer *cmd_buf_arr;
209 struct net_device *netdev = adapter->netdev;
210
211 size = sizeof(struct qlcnic_host_tx_ring);
212 tx_ring = kzalloc(size, GFP_KERNEL);
213 if (tx_ring == NULL) {
214 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
215 return -ENOMEM;
216 }
217 adapter->tx_ring = tx_ring;
218
219 tx_ring->num_desc = adapter->num_txd;
220 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
221
222 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
223 if (cmd_buf_arr == NULL) {
224 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
225 goto err_out;
226 }
227 tx_ring->cmd_buf_arr = cmd_buf_arr;
228
229 recv_ctx = &adapter->recv_ctx;
230
231 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
232 rds_ring = kzalloc(size, GFP_KERNEL);
233 if (rds_ring == NULL) {
234 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
235 goto err_out;
236 }
237 recv_ctx->rds_rings = rds_ring;
238
239 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
240 rds_ring = &recv_ctx->rds_rings[ring];
241 switch (ring) {
242 case RCV_RING_NORMAL:
243 rds_ring->num_desc = adapter->num_rxd;
244 rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
245 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
246 break;
247
248 case RCV_RING_JUMBO:
249 rds_ring->num_desc = adapter->num_jumbo_rxd;
250 rds_ring->dma_size =
251 QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
252
253 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
254 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
255
256 rds_ring->skb_size =
257 rds_ring->dma_size + NET_IP_ALIGN;
258 break;
259 }
260 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
261 if (rds_ring->rx_buf_arr == NULL) {
262 dev_err(&netdev->dev, "Failed to allocate "
263 "rx buffer ring %d\n", ring);
264 goto err_out;
265 }
266 INIT_LIST_HEAD(&rds_ring->free_list);
267 /*
268 * Now go through all of them, set reference handles
269 * and put them in the queues.
270 */
271 rx_buf = rds_ring->rx_buf_arr;
272 for (i = 0; i < rds_ring->num_desc; i++) {
273 list_add_tail(&rx_buf->list,
274 &rds_ring->free_list);
275 rx_buf->ref_handle = i;
276 rx_buf++;
277 }
278 spin_lock_init(&rds_ring->lock);
279 }
280
281 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
282 sds_ring = &recv_ctx->sds_rings[ring];
283 sds_ring->irq = adapter->msix_entries[ring].vector;
284 sds_ring->adapter = adapter;
285 sds_ring->num_desc = adapter->num_rxd;
286
287 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
288 INIT_LIST_HEAD(&sds_ring->free_list[i]);
289 }
290
291 return 0;
292
293 err_out:
294 qlcnic_free_sw_resources(adapter);
295 return -ENOMEM;
296 }
297
298 /*
299 * Utility to translate from internal Phantom CRB address
300 * to external PCI CRB address.
301 */
qlcnic_decode_crb_addr(u32 addr)302 static u32 qlcnic_decode_crb_addr(u32 addr)
303 {
304 int i;
305 u32 base_addr, offset, pci_base;
306
307 crb_addr_transform_setup();
308
309 pci_base = QLCNIC_ADDR_ERROR;
310 base_addr = addr & 0xfff00000;
311 offset = addr & 0x000fffff;
312
313 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
314 if (crb_addr_xform[i] == base_addr) {
315 pci_base = i << 20;
316 break;
317 }
318 }
319 if (pci_base == QLCNIC_ADDR_ERROR)
320 return pci_base;
321 else
322 return pci_base + offset;
323 }
324
325 #define QLCNIC_MAX_ROM_WAIT_USEC 100
326
qlcnic_wait_rom_done(struct qlcnic_adapter * adapter)327 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
328 {
329 long timeout = 0;
330 long done = 0;
331
332 cond_resched();
333
334 while (done == 0) {
335 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
336 done &= 2;
337 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
338 dev_err(&adapter->pdev->dev,
339 "Timeout reached waiting for rom done");
340 return -EIO;
341 }
342 udelay(1);
343 }
344 return 0;
345 }
346
do_rom_fast_read(struct qlcnic_adapter * adapter,int addr,int * valp)347 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
348 int addr, int *valp)
349 {
350 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
351 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
352 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
353 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
354 if (qlcnic_wait_rom_done(adapter)) {
355 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
356 return -EIO;
357 }
358 /* reset abyte_cnt and dummy_byte_cnt */
359 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
360 udelay(10);
361 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
362
363 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
364 return 0;
365 }
366
do_rom_fast_read_words(struct qlcnic_adapter * adapter,int addr,u8 * bytes,size_t size)367 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
368 u8 *bytes, size_t size)
369 {
370 int addridx;
371 int ret = 0;
372
373 for (addridx = addr; addridx < (addr + size); addridx += 4) {
374 int v;
375 ret = do_rom_fast_read(adapter, addridx, &v);
376 if (ret != 0)
377 break;
378 *(__le32 *)bytes = cpu_to_le32(v);
379 bytes += 4;
380 }
381
382 return ret;
383 }
384
385 int
qlcnic_rom_fast_read_words(struct qlcnic_adapter * adapter,int addr,u8 * bytes,size_t size)386 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
387 u8 *bytes, size_t size)
388 {
389 int ret;
390
391 ret = qlcnic_rom_lock(adapter);
392 if (ret < 0)
393 return ret;
394
395 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
396
397 qlcnic_rom_unlock(adapter);
398 return ret;
399 }
400
qlcnic_rom_fast_read(struct qlcnic_adapter * adapter,int addr,int * valp)401 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
402 {
403 int ret;
404
405 if (qlcnic_rom_lock(adapter) != 0)
406 return -EIO;
407
408 ret = do_rom_fast_read(adapter, addr, valp);
409 qlcnic_rom_unlock(adapter);
410 return ret;
411 }
412
qlcnic_pinit_from_rom(struct qlcnic_adapter * adapter)413 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
414 {
415 int addr, val;
416 int i, n, init_delay;
417 struct crb_addr_pair *buf;
418 unsigned offset;
419 u32 off;
420 struct pci_dev *pdev = adapter->pdev;
421
422 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
423 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
424
425 qlcnic_rom_lock(adapter);
426 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
427 qlcnic_rom_unlock(adapter);
428
429 /* Init HW CRB block */
430 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
431 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
432 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
433 return -EIO;
434 }
435 offset = n & 0xffffU;
436 n = (n >> 16) & 0xffffU;
437
438 if (n >= 1024) {
439 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
440 return -EIO;
441 }
442
443 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
444 if (buf == NULL) {
445 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
446 return -ENOMEM;
447 }
448
449 for (i = 0; i < n; i++) {
450 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
451 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
452 kfree(buf);
453 return -EIO;
454 }
455
456 buf[i].addr = addr;
457 buf[i].data = val;
458 }
459
460 for (i = 0; i < n; i++) {
461
462 off = qlcnic_decode_crb_addr(buf[i].addr);
463 if (off == QLCNIC_ADDR_ERROR) {
464 dev_err(&pdev->dev, "CRB init value out of range %x\n",
465 buf[i].addr);
466 continue;
467 }
468 off += QLCNIC_PCI_CRBSPACE;
469
470 if (off & 1)
471 continue;
472
473 /* skipping cold reboot MAGIC */
474 if (off == QLCNIC_CAM_RAM(0x1fc))
475 continue;
476 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
477 continue;
478 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
479 continue;
480 if (off == (ROMUSB_GLB + 0xa8))
481 continue;
482 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
483 continue;
484 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
485 continue;
486 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
487 continue;
488 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
489 continue;
490 /* skip the function enable register */
491 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
492 continue;
493 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
494 continue;
495 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
496 continue;
497
498 init_delay = 1;
499 /* After writing this register, HW needs time for CRB */
500 /* to quiet down (else crb_window returns 0xffffffff) */
501 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
502 init_delay = 1000;
503
504 QLCWR32(adapter, off, buf[i].data);
505
506 msleep(init_delay);
507 }
508 kfree(buf);
509
510 /* Initialize protocol process engine */
511 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
512 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
513 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
514 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
515 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
516 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
517 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
518 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
519 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
520 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
521 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
522 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
523 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
524 msleep(1);
525 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
526 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
527 return 0;
528 }
529
qlcnic_cmd_peg_ready(struct qlcnic_adapter * adapter)530 static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
531 {
532 u32 val;
533 int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
534
535 do {
536 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
537
538 switch (val) {
539 case PHAN_INITIALIZE_COMPLETE:
540 case PHAN_INITIALIZE_ACK:
541 return 0;
542 case PHAN_INITIALIZE_FAILED:
543 goto out_err;
544 default:
545 break;
546 }
547
548 msleep(QLCNIC_CMDPEG_CHECK_DELAY);
549
550 } while (--retries);
551
552 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
553
554 out_err:
555 dev_err(&adapter->pdev->dev, "Command Peg initialization not "
556 "complete, state: 0x%x.\n", val);
557 return -EIO;
558 }
559
560 static int
qlcnic_receive_peg_ready(struct qlcnic_adapter * adapter)561 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
562 {
563 u32 val;
564 int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
565
566 do {
567 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
568
569 if (val == PHAN_PEG_RCV_INITIALIZED)
570 return 0;
571
572 msleep(QLCNIC_RCVPEG_CHECK_DELAY);
573
574 } while (--retries);
575
576 if (!retries) {
577 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
578 "complete, state: 0x%x.\n", val);
579 return -EIO;
580 }
581
582 return 0;
583 }
584
585 int
qlcnic_check_fw_status(struct qlcnic_adapter * adapter)586 qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
587 {
588 int err;
589
590 err = qlcnic_cmd_peg_ready(adapter);
591 if (err)
592 return err;
593
594 err = qlcnic_receive_peg_ready(adapter);
595 if (err)
596 return err;
597
598 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
599
600 return err;
601 }
602
603 int
qlcnic_setup_idc_param(struct qlcnic_adapter * adapter)604 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
605
606 int timeo;
607 u32 val;
608
609 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
610 val = QLC_DEV_GET_DRV(val, adapter->portnum);
611 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
612 dev_err(&adapter->pdev->dev,
613 "Not an Ethernet NIC func=%u\n", val);
614 return -EIO;
615 }
616 adapter->physical_port = (val >> 2);
617 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
618 timeo = QLCNIC_INIT_TIMEOUT_SECS;
619
620 adapter->dev_init_timeo = timeo;
621
622 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
623 timeo = QLCNIC_RESET_TIMEOUT_SECS;
624
625 adapter->reset_ack_timeo = timeo;
626
627 return 0;
628 }
629
qlcnic_get_flt_entry(struct qlcnic_adapter * adapter,u8 region,struct qlcnic_flt_entry * region_entry)630 static int qlcnic_get_flt_entry(struct qlcnic_adapter *adapter, u8 region,
631 struct qlcnic_flt_entry *region_entry)
632 {
633 struct qlcnic_flt_header flt_hdr;
634 struct qlcnic_flt_entry *flt_entry;
635 int i = 0, ret;
636 u32 entry_size;
637
638 memset(region_entry, 0, sizeof(struct qlcnic_flt_entry));
639 ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION,
640 (u8 *)&flt_hdr,
641 sizeof(struct qlcnic_flt_header));
642 if (ret) {
643 dev_warn(&adapter->pdev->dev,
644 "error reading flash layout header\n");
645 return -EIO;
646 }
647
648 entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header);
649 flt_entry = (struct qlcnic_flt_entry *)vzalloc(entry_size);
650 if (flt_entry == NULL) {
651 dev_warn(&adapter->pdev->dev, "error allocating memory\n");
652 return -EIO;
653 }
654
655 ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION +
656 sizeof(struct qlcnic_flt_header),
657 (u8 *)flt_entry, entry_size);
658 if (ret) {
659 dev_warn(&adapter->pdev->dev,
660 "error reading flash layout entries\n");
661 goto err_out;
662 }
663
664 while (i < (entry_size/sizeof(struct qlcnic_flt_entry))) {
665 if (flt_entry[i].region == region)
666 break;
667 i++;
668 }
669 if (i >= (entry_size/sizeof(struct qlcnic_flt_entry))) {
670 dev_warn(&adapter->pdev->dev,
671 "region=%x not found in %d regions\n", region, i);
672 ret = -EIO;
673 goto err_out;
674 }
675 memcpy(region_entry, &flt_entry[i], sizeof(struct qlcnic_flt_entry));
676
677 err_out:
678 vfree(flt_entry);
679 return ret;
680 }
681
682 int
qlcnic_check_flash_fw_ver(struct qlcnic_adapter * adapter)683 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
684 {
685 struct qlcnic_flt_entry fw_entry;
686 u32 ver = -1, min_ver;
687 int ret;
688
689 ret = qlcnic_get_flt_entry(adapter, QLCNIC_FW_IMAGE_REGION, &fw_entry);
690 if (!ret)
691 /* 0-4:-signature, 4-8:-fw version */
692 qlcnic_rom_fast_read(adapter, fw_entry.start_addr + 4,
693 (int *)&ver);
694 else
695 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET,
696 (int *)&ver);
697
698 ver = QLCNIC_DECODE_VERSION(ver);
699 min_ver = QLCNIC_MIN_FW_VERSION;
700
701 if (ver < min_ver) {
702 dev_err(&adapter->pdev->dev,
703 "firmware version %d.%d.%d unsupported."
704 "Min supported version %d.%d.%d\n",
705 _major(ver), _minor(ver), _build(ver),
706 _major(min_ver), _minor(min_ver), _build(min_ver));
707 return -EINVAL;
708 }
709
710 return 0;
711 }
712
713 static int
qlcnic_has_mn(struct qlcnic_adapter * adapter)714 qlcnic_has_mn(struct qlcnic_adapter *adapter)
715 {
716 u32 capability;
717 capability = 0;
718
719 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
720 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
721 return 1;
722
723 return 0;
724 }
725
726 static
qlcnic_get_table_desc(const u8 * unirom,int section)727 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
728 {
729 u32 i;
730 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
731 __le32 entries = cpu_to_le32(directory->num_entries);
732
733 for (i = 0; i < entries; i++) {
734
735 __le32 offs = cpu_to_le32(directory->findex) +
736 (i * cpu_to_le32(directory->entry_size));
737 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
738
739 if (tab_type == section)
740 return (struct uni_table_desc *) &unirom[offs];
741 }
742
743 return NULL;
744 }
745
746 #define FILEHEADER_SIZE (14 * 4)
747
748 static int
qlcnic_validate_header(struct qlcnic_adapter * adapter)749 qlcnic_validate_header(struct qlcnic_adapter *adapter)
750 {
751 const u8 *unirom = adapter->fw->data;
752 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
753 __le32 fw_file_size = adapter->fw->size;
754 __le32 entries;
755 __le32 entry_size;
756 __le32 tab_size;
757
758 if (fw_file_size < FILEHEADER_SIZE)
759 return -EINVAL;
760
761 entries = cpu_to_le32(directory->num_entries);
762 entry_size = cpu_to_le32(directory->entry_size);
763 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
764
765 if (fw_file_size < tab_size)
766 return -EINVAL;
767
768 return 0;
769 }
770
771 static int
qlcnic_validate_bootld(struct qlcnic_adapter * adapter)772 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
773 {
774 struct uni_table_desc *tab_desc;
775 struct uni_data_desc *descr;
776 const u8 *unirom = adapter->fw->data;
777 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
778 QLCNIC_UNI_BOOTLD_IDX_OFF));
779 __le32 offs;
780 __le32 tab_size;
781 __le32 data_size;
782
783 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
784
785 if (!tab_desc)
786 return -EINVAL;
787
788 tab_size = cpu_to_le32(tab_desc->findex) +
789 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
790
791 if (adapter->fw->size < tab_size)
792 return -EINVAL;
793
794 offs = cpu_to_le32(tab_desc->findex) +
795 (cpu_to_le32(tab_desc->entry_size) * (idx));
796 descr = (struct uni_data_desc *)&unirom[offs];
797
798 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
799
800 if (adapter->fw->size < data_size)
801 return -EINVAL;
802
803 return 0;
804 }
805
806 static int
qlcnic_validate_fw(struct qlcnic_adapter * adapter)807 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
808 {
809 struct uni_table_desc *tab_desc;
810 struct uni_data_desc *descr;
811 const u8 *unirom = adapter->fw->data;
812 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
813 QLCNIC_UNI_FIRMWARE_IDX_OFF));
814 __le32 offs;
815 __le32 tab_size;
816 __le32 data_size;
817
818 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
819
820 if (!tab_desc)
821 return -EINVAL;
822
823 tab_size = cpu_to_le32(tab_desc->findex) +
824 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
825
826 if (adapter->fw->size < tab_size)
827 return -EINVAL;
828
829 offs = cpu_to_le32(tab_desc->findex) +
830 (cpu_to_le32(tab_desc->entry_size) * (idx));
831 descr = (struct uni_data_desc *)&unirom[offs];
832 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
833
834 if (adapter->fw->size < data_size)
835 return -EINVAL;
836
837 return 0;
838 }
839
840 static int
qlcnic_validate_product_offs(struct qlcnic_adapter * adapter)841 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
842 {
843 struct uni_table_desc *ptab_descr;
844 const u8 *unirom = adapter->fw->data;
845 int mn_present = qlcnic_has_mn(adapter);
846 __le32 entries;
847 __le32 entry_size;
848 __le32 tab_size;
849 u32 i;
850
851 ptab_descr = qlcnic_get_table_desc(unirom,
852 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
853 if (!ptab_descr)
854 return -EINVAL;
855
856 entries = cpu_to_le32(ptab_descr->num_entries);
857 entry_size = cpu_to_le32(ptab_descr->entry_size);
858 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
859
860 if (adapter->fw->size < tab_size)
861 return -EINVAL;
862
863 nomn:
864 for (i = 0; i < entries; i++) {
865
866 __le32 flags, file_chiprev, offs;
867 u8 chiprev = adapter->ahw.revision_id;
868 u32 flagbit;
869
870 offs = cpu_to_le32(ptab_descr->findex) +
871 (i * cpu_to_le32(ptab_descr->entry_size));
872 flags = cpu_to_le32(*((int *)&unirom[offs] +
873 QLCNIC_UNI_FLAGS_OFF));
874 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
875 QLCNIC_UNI_CHIP_REV_OFF));
876
877 flagbit = mn_present ? 1 : 2;
878
879 if ((chiprev == file_chiprev) &&
880 ((1ULL << flagbit) & flags)) {
881 adapter->file_prd_off = offs;
882 return 0;
883 }
884 }
885 if (mn_present) {
886 mn_present = 0;
887 goto nomn;
888 }
889 return -EINVAL;
890 }
891
892 static int
qlcnic_validate_unified_romimage(struct qlcnic_adapter * adapter)893 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
894 {
895 if (qlcnic_validate_header(adapter)) {
896 dev_err(&adapter->pdev->dev,
897 "unified image: header validation failed\n");
898 return -EINVAL;
899 }
900
901 if (qlcnic_validate_product_offs(adapter)) {
902 dev_err(&adapter->pdev->dev,
903 "unified image: product validation failed\n");
904 return -EINVAL;
905 }
906
907 if (qlcnic_validate_bootld(adapter)) {
908 dev_err(&adapter->pdev->dev,
909 "unified image: bootld validation failed\n");
910 return -EINVAL;
911 }
912
913 if (qlcnic_validate_fw(adapter)) {
914 dev_err(&adapter->pdev->dev,
915 "unified image: firmware validation failed\n");
916 return -EINVAL;
917 }
918
919 return 0;
920 }
921
922 static
qlcnic_get_data_desc(struct qlcnic_adapter * adapter,u32 section,u32 idx_offset)923 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
924 u32 section, u32 idx_offset)
925 {
926 const u8 *unirom = adapter->fw->data;
927 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
928 idx_offset));
929 struct uni_table_desc *tab_desc;
930 __le32 offs;
931
932 tab_desc = qlcnic_get_table_desc(unirom, section);
933
934 if (tab_desc == NULL)
935 return NULL;
936
937 offs = cpu_to_le32(tab_desc->findex) +
938 (cpu_to_le32(tab_desc->entry_size) * idx);
939
940 return (struct uni_data_desc *)&unirom[offs];
941 }
942
943 static u8 *
qlcnic_get_bootld_offs(struct qlcnic_adapter * adapter)944 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
945 {
946 u32 offs = QLCNIC_BOOTLD_START;
947
948 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
949 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
950 QLCNIC_UNI_DIR_SECT_BOOTLD,
951 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
952
953 return (u8 *)&adapter->fw->data[offs];
954 }
955
956 static u8 *
qlcnic_get_fw_offs(struct qlcnic_adapter * adapter)957 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
958 {
959 u32 offs = QLCNIC_IMAGE_START;
960
961 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
962 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
963 QLCNIC_UNI_DIR_SECT_FW,
964 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
965
966 return (u8 *)&adapter->fw->data[offs];
967 }
968
969 static __le32
qlcnic_get_fw_size(struct qlcnic_adapter * adapter)970 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
971 {
972 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
973 return cpu_to_le32((qlcnic_get_data_desc(adapter,
974 QLCNIC_UNI_DIR_SECT_FW,
975 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
976 else
977 return cpu_to_le32(
978 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
979 }
980
981 static __le32
qlcnic_get_fw_version(struct qlcnic_adapter * adapter)982 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
983 {
984 struct uni_data_desc *fw_data_desc;
985 const struct firmware *fw = adapter->fw;
986 __le32 major, minor, sub;
987 const u8 *ver_str;
988 int i, ret;
989
990 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
991 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
992
993 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
994 QLCNIC_UNI_FIRMWARE_IDX_OFF);
995 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
996 cpu_to_le32(fw_data_desc->size) - 17;
997
998 for (i = 0; i < 12; i++) {
999 if (!strncmp(&ver_str[i], "REV=", 4)) {
1000 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
1001 &major, &minor, &sub);
1002 if (ret != 3)
1003 return 0;
1004 else
1005 return major + (minor << 8) + (sub << 16);
1006 }
1007 }
1008
1009 return 0;
1010 }
1011
1012 static __le32
qlcnic_get_bios_version(struct qlcnic_adapter * adapter)1013 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
1014 {
1015 const struct firmware *fw = adapter->fw;
1016 __le32 bios_ver, prd_off = adapter->file_prd_off;
1017
1018 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
1019 return cpu_to_le32(
1020 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
1021
1022 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
1023 + QLCNIC_UNI_BIOS_VERSION_OFF));
1024
1025 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
1026 }
1027
qlcnic_rom_lock_recovery(struct qlcnic_adapter * adapter)1028 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
1029 {
1030 if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
1031 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
1032
1033 qlcnic_pcie_sem_unlock(adapter, 2);
1034 }
1035
1036 static int
qlcnic_check_fw_hearbeat(struct qlcnic_adapter * adapter)1037 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
1038 {
1039 u32 heartbeat, ret = -EIO;
1040 int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
1041
1042 adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
1043
1044 do {
1045 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1046 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
1047 if (heartbeat != adapter->heartbeat) {
1048 ret = QLCNIC_RCODE_SUCCESS;
1049 break;
1050 }
1051 } while (--retries);
1052
1053 return ret;
1054 }
1055
1056 int
qlcnic_need_fw_reset(struct qlcnic_adapter * adapter)1057 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1058 {
1059 if (qlcnic_check_fw_hearbeat(adapter)) {
1060 qlcnic_rom_lock_recovery(adapter);
1061 return 1;
1062 }
1063
1064 if (adapter->need_fw_reset)
1065 return 1;
1066
1067 if (adapter->fw)
1068 return 1;
1069
1070 return 0;
1071 }
1072
1073 static const char *fw_name[] = {
1074 QLCNIC_UNIFIED_ROMIMAGE_NAME,
1075 QLCNIC_FLASH_ROMIMAGE_NAME,
1076 };
1077
1078 int
qlcnic_load_firmware(struct qlcnic_adapter * adapter)1079 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1080 {
1081 u64 *ptr64;
1082 u32 i, flashaddr, size;
1083 const struct firmware *fw = adapter->fw;
1084 struct pci_dev *pdev = adapter->pdev;
1085
1086 dev_info(&pdev->dev, "loading firmware from %s\n",
1087 fw_name[adapter->fw_type]);
1088
1089 if (fw) {
1090 __le64 data;
1091
1092 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1093
1094 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
1095 flashaddr = QLCNIC_BOOTLD_START;
1096
1097 for (i = 0; i < size; i++) {
1098 data = cpu_to_le64(ptr64[i]);
1099
1100 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1101 return -EIO;
1102
1103 flashaddr += 8;
1104 }
1105
1106 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1107
1108 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1109 flashaddr = QLCNIC_IMAGE_START;
1110
1111 for (i = 0; i < size; i++) {
1112 data = cpu_to_le64(ptr64[i]);
1113
1114 if (qlcnic_pci_mem_write_2M(adapter,
1115 flashaddr, data))
1116 return -EIO;
1117
1118 flashaddr += 8;
1119 }
1120
1121 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1122 if (size) {
1123 data = cpu_to_le64(ptr64[i]);
1124
1125 if (qlcnic_pci_mem_write_2M(adapter,
1126 flashaddr, data))
1127 return -EIO;
1128 }
1129
1130 } else {
1131 u64 data;
1132 u32 hi, lo;
1133
1134 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1135 flashaddr = QLCNIC_BOOTLD_START;
1136
1137 for (i = 0; i < size; i++) {
1138 if (qlcnic_rom_fast_read(adapter,
1139 flashaddr, (int *)&lo) != 0)
1140 return -EIO;
1141 if (qlcnic_rom_fast_read(adapter,
1142 flashaddr + 4, (int *)&hi) != 0)
1143 return -EIO;
1144
1145 data = (((u64)hi << 32) | lo);
1146
1147 if (qlcnic_pci_mem_write_2M(adapter,
1148 flashaddr, data))
1149 return -EIO;
1150
1151 flashaddr += 8;
1152 }
1153 }
1154 msleep(1);
1155
1156 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1157 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1158 return 0;
1159 }
1160
1161 static int
qlcnic_validate_firmware(struct qlcnic_adapter * adapter)1162 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1163 {
1164 __le32 val;
1165 u32 ver, bios, min_size;
1166 struct pci_dev *pdev = adapter->pdev;
1167 const struct firmware *fw = adapter->fw;
1168 u8 fw_type = adapter->fw_type;
1169
1170 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1171 if (qlcnic_validate_unified_romimage(adapter))
1172 return -EINVAL;
1173
1174 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1175 } else {
1176 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1177 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1178 return -EINVAL;
1179
1180 min_size = QLCNIC_FW_MIN_SIZE;
1181 }
1182
1183 if (fw->size < min_size)
1184 return -EINVAL;
1185
1186 val = qlcnic_get_fw_version(adapter);
1187 ver = QLCNIC_DECODE_VERSION(val);
1188
1189 if (ver < QLCNIC_MIN_FW_VERSION) {
1190 dev_err(&pdev->dev,
1191 "%s: firmware version %d.%d.%d unsupported\n",
1192 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1193 return -EINVAL;
1194 }
1195
1196 val = qlcnic_get_bios_version(adapter);
1197 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1198 if ((__force u32)val != bios) {
1199 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1200 fw_name[fw_type]);
1201 return -EINVAL;
1202 }
1203
1204 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1205 return 0;
1206 }
1207
1208 static void
qlcnic_get_next_fwtype(struct qlcnic_adapter * adapter)1209 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1210 {
1211 u8 fw_type;
1212
1213 switch (adapter->fw_type) {
1214 case QLCNIC_UNKNOWN_ROMIMAGE:
1215 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1216 break;
1217
1218 case QLCNIC_UNIFIED_ROMIMAGE:
1219 default:
1220 fw_type = QLCNIC_FLASH_ROMIMAGE;
1221 break;
1222 }
1223
1224 adapter->fw_type = fw_type;
1225 }
1226
1227
1228
qlcnic_request_firmware(struct qlcnic_adapter * adapter)1229 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1230 {
1231 struct pci_dev *pdev = adapter->pdev;
1232 int rc;
1233
1234 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1235
1236 next:
1237 qlcnic_get_next_fwtype(adapter);
1238
1239 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1240 adapter->fw = NULL;
1241 } else {
1242 rc = request_firmware(&adapter->fw,
1243 fw_name[adapter->fw_type], &pdev->dev);
1244 if (rc != 0)
1245 goto next;
1246
1247 rc = qlcnic_validate_firmware(adapter);
1248 if (rc != 0) {
1249 release_firmware(adapter->fw);
1250 msleep(1);
1251 goto next;
1252 }
1253 }
1254 }
1255
1256
1257 void
qlcnic_release_firmware(struct qlcnic_adapter * adapter)1258 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1259 {
1260 if (adapter->fw)
1261 release_firmware(adapter->fw);
1262 adapter->fw = NULL;
1263 }
1264
1265 static void
qlcnic_handle_linkevent(struct qlcnic_adapter * adapter,struct qlcnic_fw_msg * msg)1266 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1267 struct qlcnic_fw_msg *msg)
1268 {
1269 u32 cable_OUI;
1270 u16 cable_len;
1271 u16 link_speed;
1272 u8 link_status, module, duplex, autoneg;
1273 struct net_device *netdev = adapter->netdev;
1274
1275 adapter->has_link_events = 1;
1276
1277 cable_OUI = msg->body[1] & 0xffffffff;
1278 cable_len = (msg->body[1] >> 32) & 0xffff;
1279 link_speed = (msg->body[1] >> 48) & 0xffff;
1280
1281 link_status = msg->body[2] & 0xff;
1282 duplex = (msg->body[2] >> 16) & 0xff;
1283 autoneg = (msg->body[2] >> 24) & 0xff;
1284
1285 module = (msg->body[2] >> 8) & 0xff;
1286 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1287 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1288 "length %d\n", cable_OUI, cable_len);
1289 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1290 dev_info(&netdev->dev, "unsupported cable length %d\n",
1291 cable_len);
1292
1293 qlcnic_advert_link_change(adapter, link_status);
1294
1295 if (duplex == LINKEVENT_FULL_DUPLEX)
1296 adapter->link_duplex = DUPLEX_FULL;
1297 else
1298 adapter->link_duplex = DUPLEX_HALF;
1299
1300 adapter->module_type = module;
1301 adapter->link_autoneg = autoneg;
1302 adapter->link_speed = link_speed;
1303 }
1304
1305 static void
qlcnic_handle_fw_message(int desc_cnt,int index,struct qlcnic_host_sds_ring * sds_ring)1306 qlcnic_handle_fw_message(int desc_cnt, int index,
1307 struct qlcnic_host_sds_ring *sds_ring)
1308 {
1309 struct qlcnic_fw_msg msg;
1310 struct status_desc *desc;
1311 int i = 0, opcode;
1312
1313 while (desc_cnt > 0 && i < 8) {
1314 desc = &sds_ring->desc_head[index];
1315 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1316 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1317
1318 index = get_next_index(index, sds_ring->num_desc);
1319 desc_cnt--;
1320 }
1321
1322 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1323 switch (opcode) {
1324 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1325 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1326 break;
1327 default:
1328 break;
1329 }
1330 }
1331
1332 static int
qlcnic_alloc_rx_skb(struct qlcnic_adapter * adapter,struct qlcnic_host_rds_ring * rds_ring,struct qlcnic_rx_buffer * buffer)1333 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1334 struct qlcnic_host_rds_ring *rds_ring,
1335 struct qlcnic_rx_buffer *buffer)
1336 {
1337 struct sk_buff *skb;
1338 dma_addr_t dma;
1339 struct pci_dev *pdev = adapter->pdev;
1340
1341 skb = dev_alloc_skb(rds_ring->skb_size);
1342 if (!skb) {
1343 adapter->stats.skb_alloc_failure++;
1344 return -ENOMEM;
1345 }
1346
1347 skb_reserve(skb, NET_IP_ALIGN);
1348
1349 dma = pci_map_single(pdev, skb->data,
1350 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1351
1352 if (pci_dma_mapping_error(pdev, dma)) {
1353 adapter->stats.rx_dma_map_error++;
1354 dev_kfree_skb_any(skb);
1355 return -ENOMEM;
1356 }
1357
1358 buffer->skb = skb;
1359 buffer->dma = dma;
1360
1361 return 0;
1362 }
1363
qlcnic_process_rxbuf(struct qlcnic_adapter * adapter,struct qlcnic_host_rds_ring * rds_ring,u16 index,u16 cksum)1364 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1365 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1366 {
1367 struct qlcnic_rx_buffer *buffer;
1368 struct sk_buff *skb;
1369
1370 buffer = &rds_ring->rx_buf_arr[index];
1371
1372 if (unlikely(buffer->skb == NULL)) {
1373 WARN_ON(1);
1374 return NULL;
1375 }
1376
1377 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1378 PCI_DMA_FROMDEVICE);
1379
1380 skb = buffer->skb;
1381
1382 if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
1383 cksum == STATUS_CKSUM_LOOP))) {
1384 adapter->stats.csummed++;
1385 skb->ip_summed = CHECKSUM_UNNECESSARY;
1386 } else {
1387 skb_checksum_none_assert(skb);
1388 }
1389
1390 skb->dev = adapter->netdev;
1391
1392 buffer->skb = NULL;
1393
1394 return skb;
1395 }
1396
1397 static int
qlcnic_check_rx_tagging(struct qlcnic_adapter * adapter,struct sk_buff * skb,u16 * vlan_tag)1398 qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
1399 u16 *vlan_tag)
1400 {
1401 struct ethhdr *eth_hdr;
1402
1403 if (!__vlan_get_tag(skb, vlan_tag)) {
1404 eth_hdr = (struct ethhdr *) skb->data;
1405 memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1406 skb_pull(skb, VLAN_HLEN);
1407 }
1408 if (!adapter->pvid)
1409 return 0;
1410
1411 if (*vlan_tag == adapter->pvid) {
1412 /* Outer vlan tag. Packet should follow non-vlan path */
1413 *vlan_tag = 0xffff;
1414 return 0;
1415 }
1416 if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1417 return 0;
1418
1419 return -EINVAL;
1420 }
1421
1422 static struct qlcnic_rx_buffer *
qlcnic_process_rcv(struct qlcnic_adapter * adapter,struct qlcnic_host_sds_ring * sds_ring,int ring,u64 sts_data0)1423 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1424 struct qlcnic_host_sds_ring *sds_ring,
1425 int ring, u64 sts_data0)
1426 {
1427 struct net_device *netdev = adapter->netdev;
1428 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1429 struct qlcnic_rx_buffer *buffer;
1430 struct sk_buff *skb;
1431 struct qlcnic_host_rds_ring *rds_ring;
1432 int index, length, cksum, pkt_offset;
1433 u16 vid = 0xffff;
1434
1435 if (unlikely(ring >= adapter->max_rds_rings))
1436 return NULL;
1437
1438 rds_ring = &recv_ctx->rds_rings[ring];
1439
1440 index = qlcnic_get_sts_refhandle(sts_data0);
1441 if (unlikely(index >= rds_ring->num_desc))
1442 return NULL;
1443
1444 buffer = &rds_ring->rx_buf_arr[index];
1445
1446 length = qlcnic_get_sts_totallength(sts_data0);
1447 cksum = qlcnic_get_sts_status(sts_data0);
1448 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1449
1450 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1451 if (!skb)
1452 return buffer;
1453
1454 if (length > rds_ring->skb_size)
1455 skb_put(skb, rds_ring->skb_size);
1456 else
1457 skb_put(skb, length);
1458
1459 if (pkt_offset)
1460 skb_pull(skb, pkt_offset);
1461
1462 if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1463 adapter->stats.rxdropped++;
1464 dev_kfree_skb(skb);
1465 return buffer;
1466 }
1467
1468 skb->protocol = eth_type_trans(skb, netdev);
1469
1470 if ((vid != 0xffff) && adapter->vlgrp)
1471 vlan_gro_receive(&sds_ring->napi, adapter->vlgrp, vid, skb);
1472 else
1473 napi_gro_receive(&sds_ring->napi, skb);
1474
1475 adapter->stats.rx_pkts++;
1476 adapter->stats.rxbytes += length;
1477
1478 return buffer;
1479 }
1480
1481 #define QLC_TCP_HDR_SIZE 20
1482 #define QLC_TCP_TS_OPTION_SIZE 12
1483 #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1484
1485 static struct qlcnic_rx_buffer *
qlcnic_process_lro(struct qlcnic_adapter * adapter,struct qlcnic_host_sds_ring * sds_ring,int ring,u64 sts_data0,u64 sts_data1)1486 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1487 struct qlcnic_host_sds_ring *sds_ring,
1488 int ring, u64 sts_data0, u64 sts_data1)
1489 {
1490 struct net_device *netdev = adapter->netdev;
1491 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1492 struct qlcnic_rx_buffer *buffer;
1493 struct sk_buff *skb;
1494 struct qlcnic_host_rds_ring *rds_ring;
1495 struct iphdr *iph;
1496 struct tcphdr *th;
1497 bool push, timestamp;
1498 int l2_hdr_offset, l4_hdr_offset;
1499 int index;
1500 u16 lro_length, length, data_offset;
1501 u32 seq_number;
1502 u16 vid = 0xffff;
1503
1504 if (unlikely(ring > adapter->max_rds_rings))
1505 return NULL;
1506
1507 rds_ring = &recv_ctx->rds_rings[ring];
1508
1509 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1510 if (unlikely(index > rds_ring->num_desc))
1511 return NULL;
1512
1513 buffer = &rds_ring->rx_buf_arr[index];
1514
1515 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1516 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1517 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1518 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1519 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1520 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1521
1522 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1523 if (!skb)
1524 return buffer;
1525
1526 if (timestamp)
1527 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1528 else
1529 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1530
1531 skb_put(skb, lro_length + data_offset);
1532
1533 skb_pull(skb, l2_hdr_offset);
1534
1535 if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1536 adapter->stats.rxdropped++;
1537 dev_kfree_skb(skb);
1538 return buffer;
1539 }
1540
1541 skb->protocol = eth_type_trans(skb, netdev);
1542
1543 iph = (struct iphdr *)skb->data;
1544 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1545
1546 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1547 iph->tot_len = htons(length);
1548 iph->check = 0;
1549 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1550 th->psh = push;
1551 th->seq = htonl(seq_number);
1552
1553 length = skb->len;
1554
1555 if ((vid != 0xffff) && adapter->vlgrp)
1556 vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vid);
1557 else
1558 netif_receive_skb(skb);
1559
1560 adapter->stats.lro_pkts++;
1561 adapter->stats.lrobytes += length;
1562
1563 return buffer;
1564 }
1565
1566 int
qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring * sds_ring,int max)1567 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1568 {
1569 struct qlcnic_adapter *adapter = sds_ring->adapter;
1570 struct list_head *cur;
1571 struct status_desc *desc;
1572 struct qlcnic_rx_buffer *rxbuf;
1573 u64 sts_data0, sts_data1;
1574
1575 int count = 0;
1576 int opcode, ring, desc_cnt;
1577 u32 consumer = sds_ring->consumer;
1578
1579 while (count < max) {
1580 desc = &sds_ring->desc_head[consumer];
1581 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1582
1583 if (!(sts_data0 & STATUS_OWNER_HOST))
1584 break;
1585
1586 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1587 opcode = qlcnic_get_sts_opcode(sts_data0);
1588
1589 switch (opcode) {
1590 case QLCNIC_RXPKT_DESC:
1591 case QLCNIC_OLD_RXPKT_DESC:
1592 case QLCNIC_SYN_OFFLOAD:
1593 ring = qlcnic_get_sts_type(sts_data0);
1594 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1595 ring, sts_data0);
1596 break;
1597 case QLCNIC_LRO_DESC:
1598 ring = qlcnic_get_lro_sts_type(sts_data0);
1599 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1600 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1601 ring, sts_data0, sts_data1);
1602 break;
1603 case QLCNIC_RESPONSE_DESC:
1604 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1605 default:
1606 goto skip;
1607 }
1608
1609 WARN_ON(desc_cnt > 1);
1610
1611 if (likely(rxbuf))
1612 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1613 else
1614 adapter->stats.null_rxbuf++;
1615
1616 skip:
1617 for (; desc_cnt > 0; desc_cnt--) {
1618 desc = &sds_ring->desc_head[consumer];
1619 desc->status_desc_data[0] =
1620 cpu_to_le64(STATUS_OWNER_PHANTOM);
1621 consumer = get_next_index(consumer, sds_ring->num_desc);
1622 }
1623 count++;
1624 }
1625
1626 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1627 struct qlcnic_host_rds_ring *rds_ring =
1628 &adapter->recv_ctx.rds_rings[ring];
1629
1630 if (!list_empty(&sds_ring->free_list[ring])) {
1631 list_for_each(cur, &sds_ring->free_list[ring]) {
1632 rxbuf = list_entry(cur,
1633 struct qlcnic_rx_buffer, list);
1634 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1635 }
1636 spin_lock(&rds_ring->lock);
1637 list_splice_tail_init(&sds_ring->free_list[ring],
1638 &rds_ring->free_list);
1639 spin_unlock(&rds_ring->lock);
1640 }
1641
1642 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1643 }
1644
1645 if (count) {
1646 sds_ring->consumer = consumer;
1647 writel(consumer, sds_ring->crb_sts_consumer);
1648 }
1649
1650 return count;
1651 }
1652
1653 void
qlcnic_post_rx_buffers(struct qlcnic_adapter * adapter,u32 ringid,struct qlcnic_host_rds_ring * rds_ring)1654 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1655 struct qlcnic_host_rds_ring *rds_ring)
1656 {
1657 struct rcv_desc *pdesc;
1658 struct qlcnic_rx_buffer *buffer;
1659 int producer, count = 0;
1660 struct list_head *head;
1661
1662 producer = rds_ring->producer;
1663
1664 head = &rds_ring->free_list;
1665 while (!list_empty(head)) {
1666
1667 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1668
1669 if (!buffer->skb) {
1670 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1671 break;
1672 }
1673
1674 count++;
1675 list_del(&buffer->list);
1676
1677 /* make a rcv descriptor */
1678 pdesc = &rds_ring->desc_head[producer];
1679 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1680 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1681 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1682
1683 producer = get_next_index(producer, rds_ring->num_desc);
1684 }
1685
1686 if (count) {
1687 rds_ring->producer = producer;
1688 writel((producer-1) & (rds_ring->num_desc-1),
1689 rds_ring->crb_rcv_producer);
1690 }
1691 }
1692
1693 static void
qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter * adapter,struct qlcnic_host_rds_ring * rds_ring)1694 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1695 struct qlcnic_host_rds_ring *rds_ring)
1696 {
1697 struct rcv_desc *pdesc;
1698 struct qlcnic_rx_buffer *buffer;
1699 int producer, count = 0;
1700 struct list_head *head;
1701
1702 if (!spin_trylock(&rds_ring->lock))
1703 return;
1704
1705 producer = rds_ring->producer;
1706
1707 head = &rds_ring->free_list;
1708 while (!list_empty(head)) {
1709
1710 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1711
1712 if (!buffer->skb) {
1713 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1714 break;
1715 }
1716
1717 count++;
1718 list_del(&buffer->list);
1719
1720 /* make a rcv descriptor */
1721 pdesc = &rds_ring->desc_head[producer];
1722 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1723 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1724 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1725
1726 producer = get_next_index(producer, rds_ring->num_desc);
1727 }
1728
1729 if (count) {
1730 rds_ring->producer = producer;
1731 writel((producer - 1) & (rds_ring->num_desc - 1),
1732 rds_ring->crb_rcv_producer);
1733 }
1734 spin_unlock(&rds_ring->lock);
1735 }
1736
1737 void
qlcnic_fetch_mac(struct qlcnic_adapter * adapter,u32 off1,u32 off2,u8 alt_mac,u8 * mac)1738 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1739 u8 alt_mac, u8 *mac)
1740 {
1741 u32 mac_low, mac_high;
1742 int i;
1743
1744 mac_low = QLCRD32(adapter, off1);
1745 mac_high = QLCRD32(adapter, off2);
1746
1747 if (alt_mac) {
1748 mac_low |= (mac_low >> 16) | (mac_high << 16);
1749 mac_high >>= 16;
1750 }
1751
1752 for (i = 0; i < 2; i++)
1753 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1754 for (i = 2; i < 6; i++)
1755 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1756 }
1757