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qlcnic: remove unused code
[linux-2.6-block.git] / drivers / net / qlcnic / qlcnic_init.c
CommitLineData
af19b491
AKS		 1/*
2 * Copyright (C) 2009 - QLogic Corporation.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called "COPYING".
22 *
23 */
24
25#include <linux/netdevice.h>
26#include <linux/delay.h>
5a0e3ad6 27#include <linux/slab.h>
af19b491
AKS		 28#include "qlcnic.h"
29
30struct crb_addr_pair {
31 u32 addr;
32 u32 data;
33};
34
35#define QLCNIC_MAX_CRB_XFORM 60
36static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
37
38#define crb_addr_transform(name) \
39 (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
40 QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
41
42#define QLCNIC_ADDR_ERROR (0xffffffff)
43
44static void
45qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
46 struct qlcnic_host_rds_ring *rds_ring);
47
48static void crb_addr_transform_setup(void)
49{
50 crb_addr_transform(XDMA);
51 crb_addr_transform(TIMR);
52 crb_addr_transform(SRE);
53 crb_addr_transform(SQN3);
54 crb_addr_transform(SQN2);
55 crb_addr_transform(SQN1);
56 crb_addr_transform(SQN0);
57 crb_addr_transform(SQS3);
58 crb_addr_transform(SQS2);
59 crb_addr_transform(SQS1);
60 crb_addr_transform(SQS0);
61 crb_addr_transform(RPMX7);
62 crb_addr_transform(RPMX6);
63 crb_addr_transform(RPMX5);
64 crb_addr_transform(RPMX4);
65 crb_addr_transform(RPMX3);
66 crb_addr_transform(RPMX2);
67 crb_addr_transform(RPMX1);
68 crb_addr_transform(RPMX0);
69 crb_addr_transform(ROMUSB);
70 crb_addr_transform(SN);
71 crb_addr_transform(QMN);
72 crb_addr_transform(QMS);
73 crb_addr_transform(PGNI);
74 crb_addr_transform(PGND);
75 crb_addr_transform(PGN3);
76 crb_addr_transform(PGN2);
77 crb_addr_transform(PGN1);
78 crb_addr_transform(PGN0);
79 crb_addr_transform(PGSI);
80 crb_addr_transform(PGSD);
81 crb_addr_transform(PGS3);
82 crb_addr_transform(PGS2);
83 crb_addr_transform(PGS1);
84 crb_addr_transform(PGS0);
85 crb_addr_transform(PS);
86 crb_addr_transform(PH);
87 crb_addr_transform(NIU);
88 crb_addr_transform(I2Q);
89 crb_addr_transform(EG);
90 crb_addr_transform(MN);
91 crb_addr_transform(MS);
92 crb_addr_transform(CAS2);
93 crb_addr_transform(CAS1);
94 crb_addr_transform(CAS0);
95 crb_addr_transform(CAM);
96 crb_addr_transform(C2C1);
97 crb_addr_transform(C2C0);
98 crb_addr_transform(SMB);
99 crb_addr_transform(OCM0);
100 crb_addr_transform(I2C0);
101}
102
103void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
104{
105 struct qlcnic_recv_context *recv_ctx;
106 struct qlcnic_host_rds_ring *rds_ring;
107 struct qlcnic_rx_buffer *rx_buf;
108 int i, ring;
109
110 recv_ctx = &adapter->recv_ctx;
111 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
112 rds_ring = &recv_ctx->rds_rings[ring];
113 for (i = 0; i < rds_ring->num_desc; ++i) {
114 rx_buf = &(rds_ring->rx_buf_arr[i]);
96659828 115 if (rx_buf->skb == NULL)
af19b491 116 continue;
96659828 117
af19b491
AKS		 118 pci_unmap_single(adapter->pdev,
119 rx_buf->dma,
120 rds_ring->dma_size,
121 PCI_DMA_FROMDEVICE);
96659828
AKS		 122
123 dev_kfree_skb_any(rx_buf->skb);
af19b491
AKS		 124 }
125 }
126}
127
8a15ad1f
AKS		 128void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
129{
130 struct qlcnic_recv_context *recv_ctx;
131 struct qlcnic_host_rds_ring *rds_ring;
132 struct qlcnic_rx_buffer *rx_buf;
133 int i, ring;
134
135 recv_ctx = &adapter->recv_ctx;
136 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
137 rds_ring = &recv_ctx->rds_rings[ring];
138
8a15ad1f
AKS		 139 INIT_LIST_HEAD(&rds_ring->free_list);
140
141 rx_buf = rds_ring->rx_buf_arr;
142 for (i = 0; i < rds_ring->num_desc; i++) {
143 list_add_tail(&rx_buf->list,
144 &rds_ring->free_list);
145 rx_buf++;
146 }
8a15ad1f
AKS		 147 }
148}
149
af19b491
AKS		 150void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
151{
152 struct qlcnic_cmd_buffer *cmd_buf;
153 struct qlcnic_skb_frag *buffrag;
154 int i, j;
155 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
156
157 cmd_buf = tx_ring->cmd_buf_arr;
158 for (i = 0; i < tx_ring->num_desc; i++) {
159 buffrag = cmd_buf->frag_array;
160 if (buffrag->dma) {
161 pci_unmap_single(adapter->pdev, buffrag->dma,
162 buffrag->length, PCI_DMA_TODEVICE);
163 buffrag->dma = 0ULL;
164 }
165 for (j = 0; j < cmd_buf->frag_count; j++) {
166 buffrag++;
167 if (buffrag->dma) {
168 pci_unmap_page(adapter->pdev, buffrag->dma,
169 buffrag->length,
170 PCI_DMA_TODEVICE);
171 buffrag->dma = 0ULL;
172 }
173 }
174 if (cmd_buf->skb) {
175 dev_kfree_skb_any(cmd_buf->skb);
176 cmd_buf->skb = NULL;
177 }
178 cmd_buf++;
179 }
180}
181
182void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
183{
184 struct qlcnic_recv_context *recv_ctx;
185 struct qlcnic_host_rds_ring *rds_ring;
186 struct qlcnic_host_tx_ring *tx_ring;
187 int ring;
188
189 recv_ctx = &adapter->recv_ctx;
190
191 if (recv_ctx->rds_rings == NULL)
192 goto skip_rds;
193
194 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
195 rds_ring = &recv_ctx->rds_rings[ring];
196 vfree(rds_ring->rx_buf_arr);
197 rds_ring->rx_buf_arr = NULL;
198 }
199 kfree(recv_ctx->rds_rings);
200
201skip_rds:
202 if (adapter->tx_ring == NULL)
203 return;
204
205 tx_ring = adapter->tx_ring;
206 vfree(tx_ring->cmd_buf_arr);
ef71ff83 207 tx_ring->cmd_buf_arr = NULL;
af19b491 208 kfree(adapter->tx_ring);
ef71ff83 209 adapter->tx_ring = NULL;
af19b491
AKS		 210}
211
212int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
213{
214 struct qlcnic_recv_context *recv_ctx;
215 struct qlcnic_host_rds_ring *rds_ring;
216 struct qlcnic_host_sds_ring *sds_ring;
217 struct qlcnic_host_tx_ring *tx_ring;
218 struct qlcnic_rx_buffer *rx_buf;
219 int ring, i, size;
220
221 struct qlcnic_cmd_buffer *cmd_buf_arr;
222 struct net_device *netdev = adapter->netdev;
223
224 size = sizeof(struct qlcnic_host_tx_ring);
225 tx_ring = kzalloc(size, GFP_KERNEL);
226 if (tx_ring == NULL) {
227 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
228 return -ENOMEM;
229 }
230 adapter->tx_ring = tx_ring;
231
232 tx_ring->num_desc = adapter->num_txd;
233 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
234
235 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
236 if (cmd_buf_arr == NULL) {
237 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
aadd8184 238 goto err_out;
af19b491
AKS		 239 }
240 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
241 tx_ring->cmd_buf_arr = cmd_buf_arr;
242
243 recv_ctx = &adapter->recv_ctx;
244
245 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
246 rds_ring = kzalloc(size, GFP_KERNEL);
247 if (rds_ring == NULL) {
248 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
aadd8184 249 goto err_out;
af19b491
AKS		 250 }
251 recv_ctx->rds_rings = rds_ring;
252
253 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
254 rds_ring = &recv_ctx->rds_rings[ring];
255 switch (ring) {
256 case RCV_RING_NORMAL:
257 rds_ring->num_desc = adapter->num_rxd;
251a84c9
AKS		 258 rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
259 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
af19b491
AKS		 260 break;
261
262 case RCV_RING_JUMBO:
263 rds_ring->num_desc = adapter->num_jumbo_rxd;
264 rds_ring->dma_size =
265 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
266
267 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
268 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
269
270 rds_ring->skb_size =
271 rds_ring->dma_size + NET_IP_ALIGN;
272 break;
af19b491
AKS		 273 }
274 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
275 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
276 if (rds_ring->rx_buf_arr == NULL) {
277 dev_err(&netdev->dev, "Failed to allocate "
278 "rx buffer ring %d\n", ring);
279 goto err_out;
280 }
281 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
282 INIT_LIST_HEAD(&rds_ring->free_list);
283 /*
284 * Now go through all of them, set reference handles
285 * and put them in the queues.
286 */
287 rx_buf = rds_ring->rx_buf_arr;
288 for (i = 0; i < rds_ring->num_desc; i++) {
289 list_add_tail(&rx_buf->list,
290 &rds_ring->free_list);
291 rx_buf->ref_handle = i;
af19b491
AKS		 292 rx_buf++;
293 }
294 spin_lock_init(&rds_ring->lock);
295 }
296
297 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
298 sds_ring = &recv_ctx->sds_rings[ring];
299 sds_ring->irq = adapter->msix_entries[ring].vector;
300 sds_ring->adapter = adapter;
301 sds_ring->num_desc = adapter->num_rxd;
302
303 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
304 INIT_LIST_HEAD(&sds_ring->free_list[i]);
305 }
306
307 return 0;
308
309err_out:
310 qlcnic_free_sw_resources(adapter);
311 return -ENOMEM;
312}
313
314/*
315 * Utility to translate from internal Phantom CRB address
316 * to external PCI CRB address.
317 */
318static u32 qlcnic_decode_crb_addr(u32 addr)
319{
320 int i;
321 u32 base_addr, offset, pci_base;
322
323 crb_addr_transform_setup();
324
325 pci_base = QLCNIC_ADDR_ERROR;
326 base_addr = addr & 0xfff00000;
327 offset = addr & 0x000fffff;
328
329 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
330 if (crb_addr_xform[i] == base_addr) {
331 pci_base = i << 20;
332 break;
333 }
334 }
335 if (pci_base == QLCNIC_ADDR_ERROR)
336 return pci_base;
337 else
338 return pci_base + offset;
339}
340
341#define QLCNIC_MAX_ROM_WAIT_USEC 100
342
343static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
344{
345 long timeout = 0;
346 long done = 0;
347
348 cond_resched();
349
350 while (done == 0) {
351 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
352 done &= 2;
353 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
354 dev_err(&adapter->pdev->dev,
355 "Timeout reached waiting for rom done");
356 return -EIO;
357 }
358 udelay(1);
359 }
360 return 0;
361}
362
363static int do_rom_fast_read(struct qlcnic_adapter *adapter,
364 int addr, int *valp)
365{
366 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
367 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
368 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
369 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
370 if (qlcnic_wait_rom_done(adapter)) {
371 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
372 return -EIO;
373 }
374 /* reset abyte_cnt and dummy_byte_cnt */
375 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
376 udelay(10);
377 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
378
379 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
380 return 0;
381}
382
383static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
384 u8 *bytes, size_t size)
385{
386 int addridx;
387 int ret = 0;
388
389 for (addridx = addr; addridx < (addr + size); addridx += 4) {
390 int v;
391 ret = do_rom_fast_read(adapter, addridx, &v);
392 if (ret != 0)
393 break;
394 *(__le32 *)bytes = cpu_to_le32(v);
395 bytes += 4;
396 }
397
398 return ret;
399}
400
401int
402qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
403 u8 *bytes, size_t size)
404{
405 int ret;
406
407 ret = qlcnic_rom_lock(adapter);
408 if (ret < 0)
409 return ret;
410
411 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
412
413 qlcnic_rom_unlock(adapter);
414 return ret;
415}
416
417int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
418{
419 int ret;
420
421 if (qlcnic_rom_lock(adapter) != 0)
422 return -EIO;
423
424 ret = do_rom_fast_read(adapter, addr, valp);
425 qlcnic_rom_unlock(adapter);
426 return ret;
427}
428
429int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
430{
431 int addr, val;
432 int i, n, init_delay;
433 struct crb_addr_pair *buf;
434 unsigned offset;
435 u32 off;
436 struct pci_dev *pdev = adapter->pdev;
437
438 /* resetall */
439 qlcnic_rom_lock(adapter);
469c221f 440 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
af19b491
AKS		 441 qlcnic_rom_unlock(adapter);
442
443 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
444 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
445 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
446 return -EIO;
447 }
448 offset = n & 0xffffU;
449 n = (n >> 16) & 0xffffU;
450
451 if (n >= 1024) {
452 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
453 return -EIO;
454 }
455
456 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
457 if (buf == NULL) {
458 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
459 return -ENOMEM;
460 }
461
462 for (i = 0; i < n; i++) {
463 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
464 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
465 kfree(buf);
466 return -EIO;
467 }
468
469 buf[i].addr = addr;
470 buf[i].data = val;
471 }
472
473 for (i = 0; i < n; i++) {
474
475 off = qlcnic_decode_crb_addr(buf[i].addr);
476 if (off == QLCNIC_ADDR_ERROR) {
477 dev_err(&pdev->dev, "CRB init value out of range %x\n",
478 buf[i].addr);
479 continue;
480 }
481 off += QLCNIC_PCI_CRBSPACE;
482
483 if (off & 1)
484 continue;
485
486 /* skipping cold reboot MAGIC */
487 if (off == QLCNIC_CAM_RAM(0x1fc))
488 continue;
489 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
490 continue;
491 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
492 continue;
493 if (off == (ROMUSB_GLB + 0xa8))
494 continue;
495 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
496 continue;
497 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
498 continue;
499 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
500 continue;
501 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
502 continue;
503 /* skip the function enable register */
504 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
505 continue;
506 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
507 continue;
508 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
509 continue;
510
511 init_delay = 1;
512 /* After writing this register, HW needs time for CRB */
513 /* to quiet down (else crb_window returns 0xffffffff) */
514 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
515 init_delay = 1000;
516
517 QLCWR32(adapter, off, buf[i].data);
518
519 msleep(init_delay);
520 }
521 kfree(buf);
522
523 /* p2dn replyCount */
524 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
525 /* disable_peg_cache 0 & 1*/
526 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
527 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
528
529 /* peg_clr_all */
530 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
531 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
532 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
533 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
534 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
535 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
536 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
537 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
538 return 0;
539}
540
b3a24649 541int
aa5e18c0
SC		 542qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
543
544 int timeo;
b3a24649
SC		 545 u32 val;
546
45918e2f
AC		 547 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
548 val = QLC_DEV_GET_DRV(val, adapter->portnum);
549 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
550 dev_err(&adapter->pdev->dev,
551 "Not an Ethernet NIC func=%u\n", val);
552 return -EIO;
b3a24649 553 }
45918e2f 554 adapter->physical_port = (val >> 2);
aa5e18c0
SC		 555 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
556 timeo = 30;
557
558 adapter->dev_init_timeo = timeo;
559
560 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
561 timeo = 10;
562
563 adapter->reset_ack_timeo = timeo;
b3a24649
SC		 564
565 return 0;
aa5e18c0
SC		 566}
567
8f891387 568int
569qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
570{
571 u32 ver = -1, min_ver;
572
573 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
574
575 ver = QLCNIC_DECODE_VERSION(ver);
576 min_ver = QLCNIC_MIN_FW_VERSION;
577
578 if (ver < min_ver) {
579 dev_err(&adapter->pdev->dev,
580 "firmware version %d.%d.%d unsupported."
581 "Min supported version %d.%d.%d\n",
582 _major(ver), _minor(ver), _build(ver),
583 _major(min_ver), _minor(min_ver), _build(min_ver));
584 return -EINVAL;
585 }
586
587 return 0;
588}
589
af19b491
AKS		 590static int
591qlcnic_has_mn(struct qlcnic_adapter *adapter)
592{
8f891387 593 u32 capability;
af19b491
AKS		 594 capability = 0;
595
251a84c9
AKS		 596 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
597 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
598 return 1;
af19b491 599
af19b491
AKS		 600 return 0;
601}
602
603static
604struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
605{
606 u32 i;
607 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
608 __le32 entries = cpu_to_le32(directory->num_entries);
609
610 for (i = 0; i < entries; i++) {
611
612 __le32 offs = cpu_to_le32(directory->findex) +
613 (i * cpu_to_le32(directory->entry_size));
614 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
615
616 if (tab_type == section)
617 return (struct uni_table_desc *) &unirom[offs];
618 }
619
620 return NULL;
621}
622
b7eff100
SC		 623#define FILEHEADER_SIZE (14 * 4)
624
af19b491 625static int
b7eff100 626qlcnic_validate_header(struct qlcnic_adapter *adapter)
af19b491 627{
af19b491 628 const u8 *unirom = adapter->fw->data;
b7eff100
SC		 629 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
630 __le32 fw_file_size = adapter->fw->size;
af19b491 631 __le32 entries;
b7eff100
SC		 632 __le32 entry_size;
633 __le32 tab_size;
634
635 if (fw_file_size < FILEHEADER_SIZE)
636 return -EINVAL;
637
638 entries = cpu_to_le32(directory->num_entries);
639 entry_size = cpu_to_le32(directory->entry_size);
640 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
641
642 if (fw_file_size < tab_size)
643 return -EINVAL;
644
645 return 0;
646}
647
648static int
649qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
650{
651 struct uni_table_desc *tab_desc;
652 struct uni_data_desc *descr;
653 const u8 *unirom = adapter->fw->data;
654 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
655 QLCNIC_UNI_BOOTLD_IDX_OFF));
656 __le32 offs;
657 __le32 tab_size;
658 __le32 data_size;
659
660 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
661
662 if (!tab_desc)
663 return -EINVAL;
664
665 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 666 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 667
668 if (adapter->fw->size < tab_size)
669 return -EINVAL;
670
671 offs = cpu_to_le32(tab_desc->findex) +
672 (cpu_to_le32(tab_desc->entry_size) * (idx));
673 descr = (struct uni_data_desc *)&unirom[offs];
674
22dfaa86 675 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 676
677 if (adapter->fw->size < data_size)
678 return -EINVAL;
679
680 return 0;
681}
682
683static int
684qlcnic_validate_fw(struct qlcnic_adapter *adapter)
685{
686 struct uni_table_desc *tab_desc;
687 struct uni_data_desc *descr;
688 const u8 *unirom = adapter->fw->data;
689 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
690 QLCNIC_UNI_FIRMWARE_IDX_OFF));
691 __le32 offs;
692 __le32 tab_size;
693 __le32 data_size;
694
695 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
696
697 if (!tab_desc)
698 return -EINVAL;
699
700 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 701 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 702
703 if (adapter->fw->size < tab_size)
704 return -EINVAL;
705
706 offs = cpu_to_le32(tab_desc->findex) +
707 (cpu_to_le32(tab_desc->entry_size) * (idx));
708 descr = (struct uni_data_desc *)&unirom[offs];
22dfaa86 709 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 710
711 if (adapter->fw->size < data_size)
712 return -EINVAL;
713
714 return 0;
715}
716
717static int
718qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
719{
720 struct uni_table_desc *ptab_descr;
721 const u8 *unirom = adapter->fw->data;
af19b491 722 int mn_present = qlcnic_has_mn(adapter);
b7eff100
SC		 723 __le32 entries;
724 __le32 entry_size;
725 __le32 tab_size;
726 u32 i;
af19b491
AKS		 727
728 ptab_descr = qlcnic_get_table_desc(unirom,
729 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
b7eff100
SC		 730 if (!ptab_descr)
731 return -EINVAL;
af19b491
AKS		 732
733 entries = cpu_to_le32(ptab_descr->num_entries);
b7eff100
SC		 734 entry_size = cpu_to_le32(ptab_descr->entry_size);
735 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
736
737 if (adapter->fw->size < tab_size)
738 return -EINVAL;
739
af19b491
AKS		 740nomn:
741 for (i = 0; i < entries; i++) {
742
743 __le32 flags, file_chiprev, offs;
744 u8 chiprev = adapter->ahw.revision_id;
745 u32 flagbit;
746
747 offs = cpu_to_le32(ptab_descr->findex) +
748 (i * cpu_to_le32(ptab_descr->entry_size));
749 flags = cpu_to_le32(*((int *)&unirom[offs] +
750 QLCNIC_UNI_FLAGS_OFF));
751 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
752 QLCNIC_UNI_CHIP_REV_OFF));
753
754 flagbit = mn_present ? 1 : 2;
755
756 if ((chiprev == file_chiprev) &&
757 ((1ULL << flagbit) & flags)) {
758 adapter->file_prd_off = offs;
759 return 0;
760 }
761 }
762 if (mn_present) {
763 mn_present = 0;
764 goto nomn;
765 }
b7eff100
SC		 766 return -EINVAL;
767}
768
769static int
770qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
771{
772 if (qlcnic_validate_header(adapter)) {
773 dev_err(&adapter->pdev->dev,
774 "unified image: header validation failed\n");
775 return -EINVAL;
776 }
777
778 if (qlcnic_validate_product_offs(adapter)) {
779 dev_err(&adapter->pdev->dev,
780 "unified image: product validation failed\n");
781 return -EINVAL;
782 }
783
784 if (qlcnic_validate_bootld(adapter)) {
785 dev_err(&adapter->pdev->dev,
786 "unified image: bootld validation failed\n");
787 return -EINVAL;
788 }
789
790 if (qlcnic_validate_fw(adapter)) {
791 dev_err(&adapter->pdev->dev,
792 "unified image: firmware validation failed\n");
793 return -EINVAL;
794 }
795
796 return 0;
af19b491
AKS		 797}
798
799static
800struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
801 u32 section, u32 idx_offset)
802{
803 const u8 *unirom = adapter->fw->data;
804 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
805 idx_offset));
806 struct uni_table_desc *tab_desc;
807 __le32 offs;
808
809 tab_desc = qlcnic_get_table_desc(unirom, section);
810
811 if (tab_desc == NULL)
812 return NULL;
813
814 offs = cpu_to_le32(tab_desc->findex) +
815 (cpu_to_le32(tab_desc->entry_size) * idx);
816
817 return (struct uni_data_desc *)&unirom[offs];
818}
819
820static u8 *
821qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
822{
823 u32 offs = QLCNIC_BOOTLD_START;
824
825 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
826 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
827 QLCNIC_UNI_DIR_SECT_BOOTLD,
828 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
829
830 return (u8 *)&adapter->fw->data[offs];
831}
832
833static u8 *
834qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
835{
836 u32 offs = QLCNIC_IMAGE_START;
837
838 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
839 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
840 QLCNIC_UNI_DIR_SECT_FW,
841 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
842
843 return (u8 *)&adapter->fw->data[offs];
844}
845
846static __le32
847qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
848{
849 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
850 return cpu_to_le32((qlcnic_get_data_desc(adapter,
851 QLCNIC_UNI_DIR_SECT_FW,
852 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
853 else
854 return cpu_to_le32(
855 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
856}
857
858static __le32
859qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
860{
861 struct uni_data_desc *fw_data_desc;
862 const struct firmware *fw = adapter->fw;
863 __le32 major, minor, sub;
864 const u8 *ver_str;
865 int i, ret;
866
867 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
868 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
869
870 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
871 QLCNIC_UNI_FIRMWARE_IDX_OFF);
872 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
873 cpu_to_le32(fw_data_desc->size) - 17;
874
875 for (i = 0; i < 12; i++) {
876 if (!strncmp(&ver_str[i], "REV=", 4)) {
877 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
878 &major, &minor, &sub);
879 if (ret != 3)
880 return 0;
881 else
882 return major + (minor << 8) + (sub << 16);
883 }
884 }
885
886 return 0;
887}
888
889static __le32
890qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
891{
892 const struct firmware *fw = adapter->fw;
893 __le32 bios_ver, prd_off = adapter->file_prd_off;
894
895 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
896 return cpu_to_le32(
897 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
898
899 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
900 + QLCNIC_UNI_BIOS_VERSION_OFF));
901
addd5abf 902 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
af19b491
AKS		 903}
904
905int
906qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
907{
908 u32 count, old_count;
909 u32 val, version, major, minor, build;
910 int i, timeout;
911
912 if (adapter->need_fw_reset)
913 return 1;
914
915 /* last attempt had failed */
916 if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
917 return 1;
918
919 old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
920
921 for (i = 0; i < 10; i++) {
922
923 timeout = msleep_interruptible(200);
924 if (timeout) {
925 QLCWR32(adapter, CRB_CMDPEG_STATE,
926 PHAN_INITIALIZE_FAILED);
927 return -EINTR;
928 }
929
930 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
931 if (count != old_count)
932 break;
933 }
934
935 /* firmware is dead */
936 if (count == old_count)
937 return 1;
938
939 /* check if we have got newer or different file firmware */
940 if (adapter->fw) {
941
942 val = qlcnic_get_fw_version(adapter);
943
944 version = QLCNIC_DECODE_VERSION(val);
945
946 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
947 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
948 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
949
950 if (version > QLCNIC_VERSION_CODE(major, minor, build))
951 return 1;
952 }
953
954 return 0;
955}
956
957static const char *fw_name[] = {
958 QLCNIC_UNIFIED_ROMIMAGE_NAME,
959 QLCNIC_FLASH_ROMIMAGE_NAME,
960};
961
962int
963qlcnic_load_firmware(struct qlcnic_adapter *adapter)
964{
965 u64 *ptr64;
966 u32 i, flashaddr, size;
967 const struct firmware *fw = adapter->fw;
968 struct pci_dev *pdev = adapter->pdev;
969
970 dev_info(&pdev->dev, "loading firmware from %s\n",
971 fw_name[adapter->fw_type]);
972
973 if (fw) {
974 __le64 data;
975
976 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
977
978 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
979 flashaddr = QLCNIC_BOOTLD_START;
980
981 for (i = 0; i < size; i++) {
982 data = cpu_to_le64(ptr64[i]);
983
984 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
985 return -EIO;
986
987 flashaddr += 8;
988 }
989
990 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
991
992 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
993 flashaddr = QLCNIC_IMAGE_START;
994
995 for (i = 0; i < size; i++) {
996 data = cpu_to_le64(ptr64[i]);
997
998 if (qlcnic_pci_mem_write_2M(adapter,
999 flashaddr, data))
1000 return -EIO;
1001
1002 flashaddr += 8;
1003 }
0bc92b5b
AKS		 1004
1005 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1006 if (size) {
1007 data = cpu_to_le64(ptr64[i]);
1008
1009 if (qlcnic_pci_mem_write_2M(adapter,
1010 flashaddr, data))
1011 return -EIO;
1012 }
1013
af19b491
AKS		 1014 } else {
1015 u64 data;
1016 u32 hi, lo;
1017
1018 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1019 flashaddr = QLCNIC_BOOTLD_START;
1020
1021 for (i = 0; i < size; i++) {
1022 if (qlcnic_rom_fast_read(adapter,
1023 flashaddr, (int *)&lo) != 0)
1024 return -EIO;
1025 if (qlcnic_rom_fast_read(adapter,
1026 flashaddr + 4, (int *)&hi) != 0)
1027 return -EIO;
1028
1029 data = (((u64)hi << 32) | lo);
1030
1031 if (qlcnic_pci_mem_write_2M(adapter,
1032 flashaddr, data))
1033 return -EIO;
1034
1035 flashaddr += 8;
1036 }
1037 }
1038 msleep(1);
1039
1040 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1041 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1042 return 0;
1043}
1044
1045static int
1046qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1047{
1048 __le32 val;
8f891387 1049 u32 ver, bios, min_size;
af19b491
AKS		 1050 struct pci_dev *pdev = adapter->pdev;
1051 const struct firmware *fw = adapter->fw;
1052 u8 fw_type = adapter->fw_type;
1053
1054 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
b7eff100 1055 if (qlcnic_validate_unified_romimage(adapter))
af19b491
AKS		 1056 return -EINVAL;
1057
1058 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1059 } else {
1060 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1061 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1062 return -EINVAL;
1063
1064 min_size = QLCNIC_FW_MIN_SIZE;
1065 }
1066
1067 if (fw->size < min_size)
1068 return -EINVAL;
1069
1070 val = qlcnic_get_fw_version(adapter);
af19b491
AKS		 1071 ver = QLCNIC_DECODE_VERSION(val);
1072
8f891387 1073 if (ver < QLCNIC_MIN_FW_VERSION) {
af19b491
AKS		 1074 dev_err(&pdev->dev,
1075 "%s: firmware version %d.%d.%d unsupported\n",
1076 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1077 return -EINVAL;
1078 }
1079
1080 val = qlcnic_get_bios_version(adapter);
1081 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1082 if ((__force u32)val != bios) {
1083 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1084 fw_name[fw_type]);
1085 return -EINVAL;
1086 }
1087
1088 /* check if flashed firmware is newer */
1089 if (qlcnic_rom_fast_read(adapter,
1090 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1091 return -EIO;
1092
1093 val = QLCNIC_DECODE_VERSION(val);
1094 if (val > ver) {
1095 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1096 fw_name[fw_type]);
1097 return -EINVAL;
1098 }
1099
1100 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1101 return 0;
1102}
1103
1104static void
1105qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1106{
1107 u8 fw_type;
1108
1109 switch (adapter->fw_type) {
1110 case QLCNIC_UNKNOWN_ROMIMAGE:
1111 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1112 break;
1113
1114 case QLCNIC_UNIFIED_ROMIMAGE:
1115 default:
1116 fw_type = QLCNIC_FLASH_ROMIMAGE;
1117 break;
1118 }
1119
1120 adapter->fw_type = fw_type;
1121}
1122
1123
1124
1125void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1126{
1127 struct pci_dev *pdev = adapter->pdev;
1128 int rc;
1129
1130 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1131
1132next:
1133 qlcnic_get_next_fwtype(adapter);
1134
1135 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1136 adapter->fw = NULL;
1137 } else {
1138 rc = request_firmware(&adapter->fw,
1139 fw_name[adapter->fw_type], &pdev->dev);
1140 if (rc != 0)
1141 goto next;
1142
1143 rc = qlcnic_validate_firmware(adapter);
1144 if (rc != 0) {
1145 release_firmware(adapter->fw);
1146 msleep(1);
1147 goto next;
1148 }
1149 }
1150}
1151
1152
1153void
1154qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1155{
1156 if (adapter->fw)
1157 release_firmware(adapter->fw);
1158 adapter->fw = NULL;
1159}
1160
900c6cff 1161static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
af19b491
AKS		 1162{
1163 u32 val;
1164 int retries = 60;
1165
1166 do {
1167 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1168
1169 switch (val) {
1170 case PHAN_INITIALIZE_COMPLETE:
1171 case PHAN_INITIALIZE_ACK:
1172 return 0;
1173 case PHAN_INITIALIZE_FAILED:
1174 goto out_err;
1175 default:
1176 break;
1177 }
1178
1179 msleep(500);
1180
1181 } while (--retries);
1182
1183 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1184
1185out_err:
900c6cff
AKS		 1186 dev_err(&adapter->pdev->dev, "Command Peg initialization not "
1187 "complete, state: 0x%x.\n", val);
af19b491
AKS		 1188 return -EIO;
1189}
1190
1191static int
1192qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1193{
1194 u32 val;
1195 int retries = 2000;
1196
1197 do {
1198 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1199
1200 if (val == PHAN_PEG_RCV_INITIALIZED)
1201 return 0;
1202
1203 msleep(10);
1204
1205 } while (--retries);
1206
1207 if (!retries) {
1208 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1209 "complete, state: 0x%x.\n", val);
1210 return -EIO;
1211 }
1212
1213 return 0;
1214}
1215
1216int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1217{
1218 int err;
1219
900c6cff
AKS		 1220 err = qlcnic_cmd_peg_ready(adapter);
1221 if (err)
1222 return err;
1223
af19b491
AKS		 1224 err = qlcnic_receive_peg_ready(adapter);
1225 if (err)
1226 return err;
1227
af19b491
AKS		 1228 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1229
1230 return err;
1231}
1232
1233static void
1234qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1235 struct qlcnic_fw_msg *msg)
1236{
1237 u32 cable_OUI;
1238 u16 cable_len;
1239 u16 link_speed;
1240 u8 link_status, module, duplex, autoneg;
1241 struct net_device *netdev = adapter->netdev;
1242
1243 adapter->has_link_events = 1;
1244
1245 cable_OUI = msg->body[1] & 0xffffffff;
1246 cable_len = (msg->body[1] >> 32) & 0xffff;
1247 link_speed = (msg->body[1] >> 48) & 0xffff;
1248
1249 link_status = msg->body[2] & 0xff;
1250 duplex = (msg->body[2] >> 16) & 0xff;
1251 autoneg = (msg->body[2] >> 24) & 0xff;
1252
1253 module = (msg->body[2] >> 8) & 0xff;
1254 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1255 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1256 "length %d\n", cable_OUI, cable_len);
1257 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1258 dev_info(&netdev->dev, "unsupported cable length %d\n",
1259 cable_len);
1260
1261 qlcnic_advert_link_change(adapter, link_status);
1262
1263 if (duplex == LINKEVENT_FULL_DUPLEX)
1264 adapter->link_duplex = DUPLEX_FULL;
1265 else
1266 adapter->link_duplex = DUPLEX_HALF;
1267
1268 adapter->module_type = module;
1269 adapter->link_autoneg = autoneg;
1270 adapter->link_speed = link_speed;
1271}
1272
1273static void
1274qlcnic_handle_fw_message(int desc_cnt, int index,
1275 struct qlcnic_host_sds_ring *sds_ring)
1276{
1277 struct qlcnic_fw_msg msg;
1278 struct status_desc *desc;
1279 int i = 0, opcode;
1280
1281 while (desc_cnt > 0 && i < 8) {
1282 desc = &sds_ring->desc_head[index];
1283 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1284 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1285
1286 index = get_next_index(index, sds_ring->num_desc);
1287 desc_cnt--;
1288 }
1289
1290 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1291 switch (opcode) {
1292 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1293 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1294 break;
1295 default:
1296 break;
1297 }
1298}
1299
1300static int
1301qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1302 struct qlcnic_host_rds_ring *rds_ring,
1303 struct qlcnic_rx_buffer *buffer)
1304{
1305 struct sk_buff *skb;
1306 dma_addr_t dma;
1307 struct pci_dev *pdev = adapter->pdev;
1308
96659828
AKS		 1309 skb = dev_alloc_skb(rds_ring->skb_size);
1310 if (!skb) {
8bfe8b91 1311 adapter->stats.skb_alloc_failure++;
af19b491 1312 return -ENOMEM;
8bfe8b91 1313 }
af19b491 1314
251a84c9 1315 skb_reserve(skb, 2);
af19b491
AKS		 1316
1317 dma = pci_map_single(pdev, skb->data,
1318 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1319
1320 if (pci_dma_mapping_error(pdev, dma)) {
8ae6df97 1321 adapter->stats.rx_dma_map_error++;
af19b491 1322 dev_kfree_skb_any(skb);
af19b491
AKS		 1323 return -ENOMEM;
1324 }
1325
1326 buffer->skb = skb;
1327 buffer->dma = dma;
af19b491
AKS		 1328
1329 return 0;
1330}
1331
1332static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1333 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1334{
1335 struct qlcnic_rx_buffer *buffer;
1336 struct sk_buff *skb;
1337
1338 buffer = &rds_ring->rx_buf_arr[index];
1339
96659828
AKS		 1340 if (unlikely(buffer->skb == NULL)) {
1341 WARN_ON(1);
1342 return NULL;
1343 }
1344
af19b491
AKS		 1345 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1346 PCI_DMA_FROMDEVICE);
1347
1348 skb = buffer->skb;
af19b491
AKS		 1349
1350 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1351 adapter->stats.csummed++;
1352 skb->ip_summed = CHECKSUM_UNNECESSARY;
1353 } else {
1354 skb->ip_summed = CHECKSUM_NONE;
1355 }
1356
1357 skb->dev = adapter->netdev;
1358
1359 buffer->skb = NULL;
96659828 1360
af19b491
AKS		 1361 return skb;
1362}
1363
1364static struct qlcnic_rx_buffer *
1365qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1366 struct qlcnic_host_sds_ring *sds_ring,
1367 int ring, u64 sts_data0)
1368{
1369 struct net_device *netdev = adapter->netdev;
1370 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1371 struct qlcnic_rx_buffer *buffer;
1372 struct sk_buff *skb;
1373 struct qlcnic_host_rds_ring *rds_ring;
1374 int index, length, cksum, pkt_offset;
1375
1376 if (unlikely(ring >= adapter->max_rds_rings))
1377 return NULL;
1378
1379 rds_ring = &recv_ctx->rds_rings[ring];
1380
1381 index = qlcnic_get_sts_refhandle(sts_data0);
1382 if (unlikely(index >= rds_ring->num_desc))
1383 return NULL;
1384
1385 buffer = &rds_ring->rx_buf_arr[index];
1386
1387 length = qlcnic_get_sts_totallength(sts_data0);
1388 cksum = qlcnic_get_sts_status(sts_data0);
1389 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1390
1391 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1392 if (!skb)
1393 return buffer;
1394
1395 if (length > rds_ring->skb_size)
1396 skb_put(skb, rds_ring->skb_size);
1397 else
1398 skb_put(skb, length);
1399
1400 if (pkt_offset)
1401 skb_pull(skb, pkt_offset);
1402
1403 skb->truesize = skb->len + sizeof(struct sk_buff);
1404 skb->protocol = eth_type_trans(skb, netdev);
1405
1406 napi_gro_receive(&sds_ring->napi, skb);
1407
1408 adapter->stats.rx_pkts++;
1409 adapter->stats.rxbytes += length;
1410
1411 return buffer;
1412}
1413
1414#define QLC_TCP_HDR_SIZE 20
1415#define QLC_TCP_TS_OPTION_SIZE 12
1416#define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1417
1418static struct qlcnic_rx_buffer *
1419qlcnic_process_lro(struct qlcnic_adapter *adapter,
1420 struct qlcnic_host_sds_ring *sds_ring,
1421 int ring, u64 sts_data0, u64 sts_data1)
1422{
1423 struct net_device *netdev = adapter->netdev;
1424 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1425 struct qlcnic_rx_buffer *buffer;
1426 struct sk_buff *skb;
1427 struct qlcnic_host_rds_ring *rds_ring;
1428 struct iphdr *iph;
1429 struct tcphdr *th;
1430 bool push, timestamp;
1431 int l2_hdr_offset, l4_hdr_offset;
1432 int index;
1433 u16 lro_length, length, data_offset;
1434 u32 seq_number;
1435
1436 if (unlikely(ring > adapter->max_rds_rings))
1437 return NULL;
1438
1439 rds_ring = &recv_ctx->rds_rings[ring];
1440
1441 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1442 if (unlikely(index > rds_ring->num_desc))
1443 return NULL;
1444
1445 buffer = &rds_ring->rx_buf_arr[index];
1446
1447 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1448 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1449 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1450 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1451 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1452 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1453
1454 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1455 if (!skb)
1456 return buffer;
1457
1458 if (timestamp)
1459 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1460 else
1461 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1462
1463 skb_put(skb, lro_length + data_offset);
1464
1465 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1466
1467 skb_pull(skb, l2_hdr_offset);
1468 skb->protocol = eth_type_trans(skb, netdev);
1469
1470 iph = (struct iphdr *)skb->data;
1471 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1472
1473 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1474 iph->tot_len = htons(length);
1475 iph->check = 0;
1476 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1477 th->psh = push;
1478 th->seq = htonl(seq_number);
1479
1480 length = skb->len;
1481
1482 netif_receive_skb(skb);
1483
1484 adapter->stats.lro_pkts++;
8bfe8b91 1485 adapter->stats.lrobytes += length;
af19b491
AKS		 1486
1487 return buffer;
1488}
1489
1490int
1491qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1492{
1493 struct qlcnic_adapter *adapter = sds_ring->adapter;
1494 struct list_head *cur;
1495 struct status_desc *desc;
1496 struct qlcnic_rx_buffer *rxbuf;
1497 u64 sts_data0, sts_data1;
1498
1499 int count = 0;
1500 int opcode, ring, desc_cnt;
1501 u32 consumer = sds_ring->consumer;
1502
1503 while (count < max) {
1504 desc = &sds_ring->desc_head[consumer];
1505 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1506
1507 if (!(sts_data0 & STATUS_OWNER_HOST))
1508 break;
1509
1510 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1511 opcode = qlcnic_get_sts_opcode(sts_data0);
1512
1513 switch (opcode) {
1514 case QLCNIC_RXPKT_DESC:
1515 case QLCNIC_OLD_RXPKT_DESC:
1516 case QLCNIC_SYN_OFFLOAD:
1517 ring = qlcnic_get_sts_type(sts_data0);
1518 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1519 ring, sts_data0);
1520 break;
1521 case QLCNIC_LRO_DESC:
1522 ring = qlcnic_get_lro_sts_type(sts_data0);
1523 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1524 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1525 ring, sts_data0, sts_data1);
1526 break;
1527 case QLCNIC_RESPONSE_DESC:
1528 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1529 default:
1530 goto skip;
1531 }
1532
1533 WARN_ON(desc_cnt > 1);
1534
96659828 1535 if (likely(rxbuf))
af19b491 1536 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
8ae6df97
AKS		 1537 else
1538 adapter->stats.null_rxbuf++;
af19b491
AKS		 1539
1540skip:
1541 for (; desc_cnt > 0; desc_cnt--) {
1542 desc = &sds_ring->desc_head[consumer];
1543 desc->status_desc_data[0] =
1544 cpu_to_le64(STATUS_OWNER_PHANTOM);
1545 consumer = get_next_index(consumer, sds_ring->num_desc);
1546 }
1547 count++;
1548 }
1549
1550 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1551 struct qlcnic_host_rds_ring *rds_ring =
1552 &adapter->recv_ctx.rds_rings[ring];
1553
1554 if (!list_empty(&sds_ring->free_list[ring])) {
1555 list_for_each(cur, &sds_ring->free_list[ring]) {
1556 rxbuf = list_entry(cur,
1557 struct qlcnic_rx_buffer, list);
1558 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1559 }
1560 spin_lock(&rds_ring->lock);
1561 list_splice_tail_init(&sds_ring->free_list[ring],
1562 &rds_ring->free_list);
1563 spin_unlock(&rds_ring->lock);
1564 }
1565
1566 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1567 }
1568
1569 if (count) {
1570 sds_ring->consumer = consumer;
1571 writel(consumer, sds_ring->crb_sts_consumer);
1572 }
1573
1574 return count;
1575}
1576
1577void
1578qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1579 struct qlcnic_host_rds_ring *rds_ring)
1580{
1581 struct rcv_desc *pdesc;
1582 struct qlcnic_rx_buffer *buffer;
1583 int producer, count = 0;
1584 struct list_head *head;
1585
1586 producer = rds_ring->producer;
1587
af19b491
AKS		 1588 head = &rds_ring->free_list;
1589 while (!list_empty(head)) {
1590
1591 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1592
1593 if (!buffer->skb) {
1594 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1595 break;
1596 }
1597
1598 count++;
1599 list_del(&buffer->list);
1600
1601 /* make a rcv descriptor */
1602 pdesc = &rds_ring->desc_head[producer];
1603 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1604 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1605 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1606
1607 producer = get_next_index(producer, rds_ring->num_desc);
1608 }
af19b491
AKS		 1609
1610 if (count) {
1611 rds_ring->producer = producer;
1612 writel((producer-1) & (rds_ring->num_desc-1),
1613 rds_ring->crb_rcv_producer);
1614 }
1615}
1616
1617static void
1618qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1619 struct qlcnic_host_rds_ring *rds_ring)
1620{
1621 struct rcv_desc *pdesc;
1622 struct qlcnic_rx_buffer *buffer;
1623 int producer, count = 0;
1624 struct list_head *head;
1625
af19b491
AKS		 1626 if (!spin_trylock(&rds_ring->lock))
1627 return;
1628
ed6f1353
AKS		 1629 producer = rds_ring->producer;
1630
af19b491
AKS		 1631 head = &rds_ring->free_list;
1632 while (!list_empty(head)) {
1633
1634 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1635
1636 if (!buffer->skb) {
1637 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1638 break;
1639 }
1640
1641 count++;
1642 list_del(&buffer->list);
1643
1644 /* make a rcv descriptor */
1645 pdesc = &rds_ring->desc_head[producer];
1646 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1647 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1648 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1649
1650 producer = get_next_index(producer, rds_ring->num_desc);
1651 }
1652
1653 if (count) {
1654 rds_ring->producer = producer;
1655 writel((producer - 1) & (rds_ring->num_desc - 1),
1656 rds_ring->crb_rcv_producer);
1657 }
1658 spin_unlock(&rds_ring->lock);
1659}
1660
cdaff185
AKS		 1661static struct qlcnic_rx_buffer *
1662qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1663 struct qlcnic_host_sds_ring *sds_ring,
1664 int ring, u64 sts_data0)
1665{
1666 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1667 struct qlcnic_rx_buffer *buffer;
1668 struct sk_buff *skb;
1669 struct qlcnic_host_rds_ring *rds_ring;
1670 int index, length, cksum, pkt_offset;
1671
1672 if (unlikely(ring >= adapter->max_rds_rings))
1673 return NULL;
1674
1675 rds_ring = &recv_ctx->rds_rings[ring];
1676
1677 index = qlcnic_get_sts_refhandle(sts_data0);
1678 if (unlikely(index >= rds_ring->num_desc))
1679 return NULL;
1680
1681 buffer = &rds_ring->rx_buf_arr[index];
1682
1683 length = qlcnic_get_sts_totallength(sts_data0);
1684 cksum = qlcnic_get_sts_status(sts_data0);
1685 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1686
1687 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1688 if (!skb)
1689 return buffer;
1690
1691 skb_put(skb, rds_ring->skb_size);
1692
1693 if (pkt_offset)
1694 skb_pull(skb, pkt_offset);
1695
1696 skb->truesize = skb->len + sizeof(struct sk_buff);
1697
1698 if (!qlcnic_check_loopback_buff(skb->data))
1699 adapter->diag_cnt++;
1700
1701 dev_kfree_skb_any(skb);
8bfe8b91
SC		 1702 adapter->stats.rx_pkts++;
1703 adapter->stats.rxbytes += length;
cdaff185
AKS		 1704
1705 return buffer;
1706}
1707
1708void
1709qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1710{
1711 struct qlcnic_adapter *adapter = sds_ring->adapter;
1712 struct status_desc *desc;
1713 struct qlcnic_rx_buffer *rxbuf;
1714 u64 sts_data0;
1715
1716 int opcode, ring, desc_cnt;
1717 u32 consumer = sds_ring->consumer;
1718
1719 desc = &sds_ring->desc_head[consumer];
1720 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1721
1722 if (!(sts_data0 & STATUS_OWNER_HOST))
1723 return;
1724
1725 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1726 opcode = qlcnic_get_sts_opcode(sts_data0);
1727
1728 ring = qlcnic_get_sts_type(sts_data0);
1729 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1730 ring, sts_data0);
1731
1732 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1733 consumer = get_next_index(consumer, sds_ring->num_desc);
1734
1735 sds_ring->consumer = consumer;
1736 writel(consumer, sds_ring->crb_sts_consumer);
1737}
2e9d722d
AC		 1738
1739void
1740qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1741 u8 alt_mac, u8 *mac)
1742{
1743 u32 mac_low, mac_high;
1744 int i;
1745
1746 mac_low = QLCRD32(adapter, off1);
1747 mac_high = QLCRD32(adapter, off2);
1748
1749 if (alt_mac) {
1750 mac_low |= (mac_low >> 16) | (mac_high << 16);
1751 mac_high >>= 16;
1752 }
1753
1754 for (i = 0; i < 2; i++)
1755 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1756 for (i = 2; i < 6; i++)
1757 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1758}
Linux 6.x block layer and io_uring tree(s)