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qlcnic: Remove unused code
[linux-2.6-block.git] / drivers / net / qlcnic / qlcnic_init.c
CommitLineData
af19b491 1/*
40839129
SV		 2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2010 QLogic Corporation
af19b491 4 *
40839129 5 * See LICENSE.qlcnic for copyright and licensing details.
af19b491
AKS		 6 */
7
8#include <linux/netdevice.h>
9#include <linux/delay.h>
5a0e3ad6 10#include <linux/slab.h>
8cf61f89 11#include <linux/if_vlan.h>
af19b491
AKS		 12#include "qlcnic.h"
13
14struct crb_addr_pair {
15 u32 addr;
16 u32 data;
17};
18
19#define QLCNIC_MAX_CRB_XFORM 60
20static 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
28static void
29qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
30 struct qlcnic_host_rds_ring *rds_ring);
31
4e70812b
SC		 32static int
33qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
34
af19b491
AKS		 35static 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
90void 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
b1fc6d3c 97 recv_ctx = adapter->recv_ctx;
af19b491
AKS		 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]);
96659828 102 if (rx_buf->skb == NULL)
af19b491 103 continue;
96659828 104
af19b491
AKS		 105 pci_unmap_single(adapter->pdev,
106 rx_buf->dma,
107 rds_ring->dma_size,
108 PCI_DMA_FROMDEVICE);
96659828
AKS		 109
110 dev_kfree_skb_any(rx_buf->skb);
af19b491
AKS		 111 }
112 }
113}
114
8a15ad1f
AKS		 115void 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
b1fc6d3c 122 recv_ctx = adapter->recv_ctx;
8a15ad1f
AKS		 123 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
124 rds_ring = &recv_ctx->rds_rings[ring];
125
8a15ad1f
AKS		 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 }
8a15ad1f
AKS		 134 }
135}
136
af19b491
AKS		 137void 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
169void 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
b1fc6d3c 176 recv_ctx = adapter->recv_ctx;
af19b491
AKS		 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
188skip_rds:
189 if (adapter->tx_ring == NULL)
190 return;
191
192 tx_ring = adapter->tx_ring;
193 vfree(tx_ring->cmd_buf_arr);
ef71ff83 194 tx_ring->cmd_buf_arr = NULL;
af19b491 195 kfree(adapter->tx_ring);
ef71ff83 196 adapter->tx_ring = NULL;
af19b491
AKS		 197}
198
199int 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
89bf67f1 222 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
af19b491
AKS		 223 if (cmd_buf_arr == NULL) {
224 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
aadd8184 225 goto err_out;
af19b491 226 }
af19b491
AKS		 227 tx_ring->cmd_buf_arr = cmd_buf_arr;
228
b1fc6d3c 229 recv_ctx = adapter->recv_ctx;
af19b491
AKS		 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");
aadd8184 235 goto err_out;
af19b491
AKS		 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;
ff1b1bf8 244 rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
251a84c9 245 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
af19b491
AKS		 246 break;
247
248 case RCV_RING_JUMBO:
249 rds_ring->num_desc = adapter->num_jumbo_rxd;
250 rds_ring->dma_size =
ff1b1bf8 251 QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
af19b491
AKS		 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;
af19b491 259 }
f3167460 260 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
af19b491
AKS		 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 }
af19b491
AKS		 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;
af19b491
AKS		 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
293err_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 */
302static 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
327static 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
347static 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
367static 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
385int
386qlcnic_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
401int 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
413int 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
d4066833
SC		 422 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
423 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
424
af19b491 425 qlcnic_rom_lock(adapter);
469c221f 426 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
af19b491
AKS		 427 qlcnic_rom_unlock(adapter);
428
d4066833 429 /* Init HW CRB block */
af19b491
AKS		 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
d4066833 510 /* Initialize protocol process engine */
af19b491 511 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
af19b491
AKS		 512 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
513 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
af19b491
AKS		 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);
d4066833
SC		 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);
af19b491
AKS		 527 return 0;
528}
529
4e70812b 530static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
d4066833 531{
4e70812b
SC		 532 u32 val;
533 int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
d4066833 534
d4066833 535 do {
4e70812b
SC		 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;
d4066833 546 }
4e70812b
SC		 547
548 msleep(QLCNIC_CMDPEG_CHECK_DELAY);
549
d4066833
SC		 550 } while (--retries);
551
4e70812b
SC		 552 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
553
554out_err:
555 dev_err(&adapter->pdev->dev, "Command Peg initialization not "
556 "complete, state: 0x%x.\n", val);
557 return -EIO;
558}
559
560static int
561qlcnic_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
585int
586qlcnic_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;
d4066833
SC		 601}
602
b3a24649 603int
aa5e18c0
SC		 604qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
605
606 int timeo;
b3a24649
SC		 607 u32 val;
608
45918e2f
AC		 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;
b3a24649 615 }
45918e2f 616 adapter->physical_port = (val >> 2);
aa5e18c0 617 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
251b036a 618 timeo = QLCNIC_INIT_TIMEOUT_SECS;
aa5e18c0
SC		 619
620 adapter->dev_init_timeo = timeo;
621
622 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
251b036a 623 timeo = QLCNIC_RESET_TIMEOUT_SECS;
aa5e18c0
SC		 624
625 adapter->reset_ack_timeo = timeo;
b3a24649
SC		 626
627 return 0;
aa5e18c0
SC		 628}
629
0e5f20b6 630static 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
677err_out:
678 vfree(flt_entry);
679 return ret;
680}
681
8f891387 682int
683qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
684{
0e5f20b6 685 struct qlcnic_flt_entry fw_entry;
8f891387 686 u32 ver = -1, min_ver;
0e5f20b6 687 int ret;
8f891387 688
0e5f20b6 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);
8f891387 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
af19b491
AKS		 713static int
714qlcnic_has_mn(struct qlcnic_adapter *adapter)
715{
8f891387 716 u32 capability;
af19b491
AKS		 717 capability = 0;
718
251a84c9
AKS		 719 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
720 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
721 return 1;
af19b491 722
af19b491
AKS		 723 return 0;
724}
725
726static
727struct 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
b7eff100
SC		 746#define FILEHEADER_SIZE (14 * 4)
747
af19b491 748static int
b7eff100 749qlcnic_validate_header(struct qlcnic_adapter *adapter)
af19b491 750{
af19b491 751 const u8 *unirom = adapter->fw->data;
b7eff100
SC		 752 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
753 __le32 fw_file_size = adapter->fw->size;
af19b491 754 __le32 entries;
b7eff100
SC		 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
771static int
772qlcnic_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) +
22dfaa86 789 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 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
22dfaa86 798 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 799
800 if (adapter->fw->size < data_size)
801 return -EINVAL;
802
803 return 0;
804}
805
806static int
807qlcnic_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) +
22dfaa86 824 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 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];
22dfaa86 832 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 833
834 if (adapter->fw->size < data_size)
835 return -EINVAL;
836
837 return 0;
838}
839
840static int
841qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
842{
843 struct uni_table_desc *ptab_descr;
844 const u8 *unirom = adapter->fw->data;
af19b491 845 int mn_present = qlcnic_has_mn(adapter);
b7eff100
SC		 846 __le32 entries;
847 __le32 entry_size;
848 __le32 tab_size;
849 u32 i;
af19b491
AKS		 850
851 ptab_descr = qlcnic_get_table_desc(unirom,
852 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
b7eff100
SC		 853 if (!ptab_descr)
854 return -EINVAL;
af19b491
AKS		 855
856 entries = cpu_to_le32(ptab_descr->num_entries);
b7eff100
SC		 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
af19b491
AKS		 863nomn:
864 for (i = 0; i < entries; i++) {
865
866 __le32 flags, file_chiprev, offs;
b1fc6d3c 867 u8 chiprev = adapter->ahw->revision_id;
af19b491
AKS		 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 }
b7eff100
SC		 889 return -EINVAL;
890}
891
892static int
893qlcnic_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;
af19b491
AKS		 920}
921
922static
923struct 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
943static u8 *
944qlcnic_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
956static u8 *
957qlcnic_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
969static __le32
970qlcnic_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
981static __le32
982qlcnic_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
1012static __le32
1013qlcnic_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
addd5abf 1025 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
af19b491
AKS		 1026}
1027
091754a1
SC		 1028static 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
4e70812b
SC		 1036static int
1037qlcnic_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
af19b491
AKS		 1056int
1057qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1058{
4e70812b 1059 if (qlcnic_check_fw_hearbeat(adapter)) {
091754a1 1060 qlcnic_rom_lock_recovery(adapter);
af19b491 1061 return 1;
091754a1 1062 }
af19b491 1063
091754a1 1064 if (adapter->need_fw_reset)
af19b491
AKS		 1065 return 1;
1066
97f29d82
AKS		 1067 if (adapter->fw)
1068 return 1;
af19b491
AKS		 1069
1070 return 0;
1071}
1072
1073static const char *fw_name[] = {
1074 QLCNIC_UNIFIED_ROMIMAGE_NAME,
1075 QLCNIC_FLASH_ROMIMAGE_NAME,
1076};
1077
1078int
1079qlcnic_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 }
0bc92b5b
AKS		 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
af19b491
AKS		 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
1161static int
1162qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1163{
1164 __le32 val;
8f891387 1165 u32 ver, bios, min_size;
af19b491
AKS		 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) {
b7eff100 1171 if (qlcnic_validate_unified_romimage(adapter))
af19b491
AKS		 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);
af19b491
AKS		 1187 ver = QLCNIC_DECODE_VERSION(val);
1188
8f891387 1189 if (ver < QLCNIC_MIN_FW_VERSION) {
af19b491
AKS		 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
af19b491
AKS		 1204 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1205 return 0;
1206}
1207
1208static void
1209qlcnic_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
1229void 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
1236next:
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
1257void
1258qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1259{
1260 if (adapter->fw)
1261 release_firmware(adapter->fw);
1262 adapter->fw = NULL;
1263}
1264
af19b491
AKS		 1265static void
1266qlcnic_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
1305static void
1306qlcnic_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
1332static int
1333qlcnic_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
96659828
AKS		 1341 skb = dev_alloc_skb(rds_ring->skb_size);
1342 if (!skb) {
8bfe8b91 1343 adapter->stats.skb_alloc_failure++;
af19b491 1344 return -ENOMEM;
8bfe8b91 1345 }
af19b491 1346
04746ff1 1347 skb_reserve(skb, NET_IP_ALIGN);
af19b491
AKS		 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)) {
8ae6df97 1353 adapter->stats.rx_dma_map_error++;
af19b491 1354 dev_kfree_skb_any(skb);
af19b491
AKS		 1355 return -ENOMEM;
1356 }
1357
1358 buffer->skb = skb;
1359 buffer->dma = dma;
af19b491
AKS		 1360
1361 return 0;
1362}
1363
1364static 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
96659828
AKS		 1372 if (unlikely(buffer->skb == NULL)) {
1373 WARN_ON(1);
1374 return NULL;
1375 }
1376
af19b491
AKS		 1377 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1378 PCI_DMA_FROMDEVICE);
1379
1380 skb = buffer->skb;
af19b491 1381
d807b3f7
AKS		 1382 if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
1383 cksum == STATUS_CKSUM_LOOP))) {
af19b491
AKS		 1384 adapter->stats.csummed++;
1385 skb->ip_summed = CHECKSUM_UNNECESSARY;
1386 } else {
bc8acf2c 1387 skb_checksum_none_assert(skb);
af19b491
AKS		 1388 }
1389
1390 skb->dev = adapter->netdev;
1391
1392 buffer->skb = NULL;
96659828 1393
af19b491
AKS		 1394 return skb;
1395}
1396
b1fc6d3c 1397static inline int
d5790663
AKS		 1398qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
1399 u16 *vlan_tag)
8cf61f89 1400{
8cf61f89
AKS		 1401 struct ethhdr *eth_hdr;
1402
d5790663
AKS		 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;
8cf61f89
AKS		 1415 }
1416 if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1417 return 0;
1418
d5790663 1419 return -EINVAL;
8cf61f89
AKS		 1420}
1421
af19b491
AKS		 1422static struct qlcnic_rx_buffer *
1423qlcnic_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;
b1fc6d3c 1428 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 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;
d5790663 1433 u16 vid = 0xffff;
af19b491
AKS		 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
d5790663
AKS		 1462 if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1463 adapter->stats.rxdropped++;
1464 dev_kfree_skb(skb);
1465 return buffer;
8cf61f89
AKS		 1466 }
1467
af19b491
AKS		 1468 skb->protocol = eth_type_trans(skb, netdev);
1469
b9796a14
AC		 1470 if (vid != 0xffff)
1471 __vlan_hwaccel_put_tag(skb, vid);
1472
1473 napi_gro_receive(&sds_ring->napi, skb);
af19b491
AKS		 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
1485static struct qlcnic_rx_buffer *
1486qlcnic_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;
b1fc6d3c 1491 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
af19b491
AKS		 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;
d5790663 1502 u16 vid = 0xffff;
af19b491
AKS		 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
af19b491 1533 skb_pull(skb, l2_hdr_offset);
8cf61f89 1534
d5790663
AKS		 1535 if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1536 adapter->stats.rxdropped++;
1537 dev_kfree_skb(skb);
1538 return buffer;
8cf61f89 1539 }
d5790663 1540
af19b491
AKS		 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
b9796a14
AC		 1555 if (vid != 0xffff)
1556 __vlan_hwaccel_put_tag(skb, vid);
1557 netif_receive_skb(skb);
af19b491
AKS		 1558
1559 adapter->stats.lro_pkts++;
8bfe8b91 1560 adapter->stats.lrobytes += length;
af19b491
AKS		 1561
1562 return buffer;
1563}
1564
1565int
1566qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1567{
1568 struct qlcnic_adapter *adapter = sds_ring->adapter;
1569 struct list_head *cur;
1570 struct status_desc *desc;
1571 struct qlcnic_rx_buffer *rxbuf;
1572 u64 sts_data0, sts_data1;
1573
1574 int count = 0;
1575 int opcode, ring, desc_cnt;
1576 u32 consumer = sds_ring->consumer;
1577
1578 while (count < max) {
1579 desc = &sds_ring->desc_head[consumer];
1580 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1581
1582 if (!(sts_data0 & STATUS_OWNER_HOST))
1583 break;
1584
1585 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1586 opcode = qlcnic_get_sts_opcode(sts_data0);
1587
1588 switch (opcode) {
1589 case QLCNIC_RXPKT_DESC:
1590 case QLCNIC_OLD_RXPKT_DESC:
1591 case QLCNIC_SYN_OFFLOAD:
1592 ring = qlcnic_get_sts_type(sts_data0);
1593 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1594 ring, sts_data0);
1595 break;
1596 case QLCNIC_LRO_DESC:
1597 ring = qlcnic_get_lro_sts_type(sts_data0);
1598 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1599 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1600 ring, sts_data0, sts_data1);
1601 break;
1602 case QLCNIC_RESPONSE_DESC:
1603 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1604 default:
1605 goto skip;
1606 }
1607
1608 WARN_ON(desc_cnt > 1);
1609
96659828 1610 if (likely(rxbuf))
af19b491 1611 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
8ae6df97
AKS		 1612 else
1613 adapter->stats.null_rxbuf++;
af19b491
AKS		 1614
1615skip:
1616 for (; desc_cnt > 0; desc_cnt--) {
1617 desc = &sds_ring->desc_head[consumer];
1618 desc->status_desc_data[0] =
1619 cpu_to_le64(STATUS_OWNER_PHANTOM);
1620 consumer = get_next_index(consumer, sds_ring->num_desc);
1621 }
1622 count++;
1623 }
1624
1625 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1626 struct qlcnic_host_rds_ring *rds_ring =
b1fc6d3c 1627 &adapter->recv_ctx->rds_rings[ring];
af19b491
AKS		 1628
1629 if (!list_empty(&sds_ring->free_list[ring])) {
1630 list_for_each(cur, &sds_ring->free_list[ring]) {
1631 rxbuf = list_entry(cur,
1632 struct qlcnic_rx_buffer, list);
1633 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1634 }
1635 spin_lock(&rds_ring->lock);
1636 list_splice_tail_init(&sds_ring->free_list[ring],
1637 &rds_ring->free_list);
1638 spin_unlock(&rds_ring->lock);
1639 }
1640
1641 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1642 }
1643
1644 if (count) {
1645 sds_ring->consumer = consumer;
1646 writel(consumer, sds_ring->crb_sts_consumer);
1647 }
1648
1649 return count;
1650}
1651
1652void
b1fc6d3c 1653qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter,
af19b491
AKS		 1654 struct qlcnic_host_rds_ring *rds_ring)
1655{
1656 struct rcv_desc *pdesc;
1657 struct qlcnic_rx_buffer *buffer;
b1fc6d3c
AC		 1658 int count = 0;
1659 u32 producer;
af19b491
AKS		 1660 struct list_head *head;
1661
1662 producer = rds_ring->producer;
1663
af19b491
AKS		 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 }
af19b491
AKS		 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
1693static void
1694qlcnic_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;
b1fc6d3c
AC		 1699 int count = 0;
1700 uint32_t producer;
af19b491
AKS		 1701 struct list_head *head;
1702
af19b491
AKS		 1703 if (!spin_trylock(&rds_ring->lock))
1704 return;
1705
ed6f1353
AKS		 1706 producer = rds_ring->producer;
1707
af19b491
AKS		 1708 head = &rds_ring->free_list;
1709 while (!list_empty(head)) {
1710
1711 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1712
1713 if (!buffer->skb) {
1714 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1715 break;
1716 }
1717
1718 count++;
1719 list_del(&buffer->list);
1720
1721 /* make a rcv descriptor */
1722 pdesc = &rds_ring->desc_head[producer];
1723 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1724 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1725 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1726
1727 producer = get_next_index(producer, rds_ring->num_desc);
1728 }
1729
1730 if (count) {
1731 rds_ring->producer = producer;
1732 writel((producer - 1) & (rds_ring->num_desc - 1),
1733 rds_ring->crb_rcv_producer);
1734 }
1735 spin_unlock(&rds_ring->lock);
1736}
1737
2e9d722d
AC		 1738void
1739qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1740 u8 alt_mac, u8 *mac)
1741{
1742 u32 mac_low, mac_high;
1743 int i;
1744
1745 mac_low = QLCRD32(adapter, off1);
1746 mac_high = QLCRD32(adapter, off2);
1747
1748 if (alt_mac) {
1749 mac_low |= (mac_low >> 16) | (mac_high << 16);
1750 mac_high >>= 16;
1751 }
1752
1753 for (i = 0; i < 2; i++)
1754 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1755 for (i = 2; i < 6; i++)
1756 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1757}
Linux 6.x block layer and io_uring tree(s)