]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/net/qlcnic/qlcnic_init.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
[net-next-2.6.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
139 spin_lock(&rds_ring->lock);
140
141 INIT_LIST_HEAD(&rds_ring->free_list);
142
143 rx_buf = rds_ring->rx_buf_arr;
144 for (i = 0; i < rds_ring->num_desc; i++) {
145 list_add_tail(&rx_buf->list,
146 &rds_ring->free_list);
147 rx_buf++;
148 }
149
150 spin_unlock(&rds_ring->lock);
151 }
152}
153
af19b491
AKS		 154void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
155{
156 struct qlcnic_cmd_buffer *cmd_buf;
157 struct qlcnic_skb_frag *buffrag;
158 int i, j;
159 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
160
161 cmd_buf = tx_ring->cmd_buf_arr;
162 for (i = 0; i < tx_ring->num_desc; i++) {
163 buffrag = cmd_buf->frag_array;
164 if (buffrag->dma) {
165 pci_unmap_single(adapter->pdev, buffrag->dma,
166 buffrag->length, PCI_DMA_TODEVICE);
167 buffrag->dma = 0ULL;
168 }
169 for (j = 0; j < cmd_buf->frag_count; j++) {
170 buffrag++;
171 if (buffrag->dma) {
172 pci_unmap_page(adapter->pdev, buffrag->dma,
173 buffrag->length,
174 PCI_DMA_TODEVICE);
175 buffrag->dma = 0ULL;
176 }
177 }
178 if (cmd_buf->skb) {
179 dev_kfree_skb_any(cmd_buf->skb);
180 cmd_buf->skb = NULL;
181 }
182 cmd_buf++;
183 }
184}
185
186void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
187{
188 struct qlcnic_recv_context *recv_ctx;
189 struct qlcnic_host_rds_ring *rds_ring;
190 struct qlcnic_host_tx_ring *tx_ring;
191 int ring;
192
193 recv_ctx = &adapter->recv_ctx;
194
195 if (recv_ctx->rds_rings == NULL)
196 goto skip_rds;
197
198 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
199 rds_ring = &recv_ctx->rds_rings[ring];
200 vfree(rds_ring->rx_buf_arr);
201 rds_ring->rx_buf_arr = NULL;
202 }
203 kfree(recv_ctx->rds_rings);
204
205skip_rds:
206 if (adapter->tx_ring == NULL)
207 return;
208
209 tx_ring = adapter->tx_ring;
210 vfree(tx_ring->cmd_buf_arr);
ef71ff83 211 tx_ring->cmd_buf_arr = NULL;
af19b491 212 kfree(adapter->tx_ring);
ef71ff83 213 adapter->tx_ring = NULL;
af19b491
AKS		 214}
215
216int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
217{
218 struct qlcnic_recv_context *recv_ctx;
219 struct qlcnic_host_rds_ring *rds_ring;
220 struct qlcnic_host_sds_ring *sds_ring;
221 struct qlcnic_host_tx_ring *tx_ring;
222 struct qlcnic_rx_buffer *rx_buf;
223 int ring, i, size;
224
225 struct qlcnic_cmd_buffer *cmd_buf_arr;
226 struct net_device *netdev = adapter->netdev;
227
228 size = sizeof(struct qlcnic_host_tx_ring);
229 tx_ring = kzalloc(size, GFP_KERNEL);
230 if (tx_ring == NULL) {
231 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
232 return -ENOMEM;
233 }
234 adapter->tx_ring = tx_ring;
235
236 tx_ring->num_desc = adapter->num_txd;
237 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
238
239 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
240 if (cmd_buf_arr == NULL) {
241 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
aadd8184 242 goto err_out;
af19b491
AKS		 243 }
244 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
245 tx_ring->cmd_buf_arr = cmd_buf_arr;
246
247 recv_ctx = &adapter->recv_ctx;
248
249 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
250 rds_ring = kzalloc(size, GFP_KERNEL);
251 if (rds_ring == NULL) {
252 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
aadd8184 253 goto err_out;
af19b491
AKS		 254 }
255 recv_ctx->rds_rings = rds_ring;
256
257 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
258 rds_ring = &recv_ctx->rds_rings[ring];
259 switch (ring) {
260 case RCV_RING_NORMAL:
261 rds_ring->num_desc = adapter->num_rxd;
251a84c9
AKS		 262 rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
263 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
af19b491
AKS		 264 break;
265
266 case RCV_RING_JUMBO:
267 rds_ring->num_desc = adapter->num_jumbo_rxd;
268 rds_ring->dma_size =
269 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
270
271 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
272 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
273
274 rds_ring->skb_size =
275 rds_ring->dma_size + NET_IP_ALIGN;
276 break;
af19b491
AKS		 277 }
278 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
279 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
280 if (rds_ring->rx_buf_arr == NULL) {
281 dev_err(&netdev->dev, "Failed to allocate "
282 "rx buffer ring %d\n", ring);
283 goto err_out;
284 }
285 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
286 INIT_LIST_HEAD(&rds_ring->free_list);
287 /*
288 * Now go through all of them, set reference handles
289 * and put them in the queues.
290 */
291 rx_buf = rds_ring->rx_buf_arr;
292 for (i = 0; i < rds_ring->num_desc; i++) {
293 list_add_tail(&rx_buf->list,
294 &rds_ring->free_list);
295 rx_buf->ref_handle = i;
af19b491
AKS		 296 rx_buf++;
297 }
298 spin_lock_init(&rds_ring->lock);
299 }
300
301 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
302 sds_ring = &recv_ctx->sds_rings[ring];
303 sds_ring->irq = adapter->msix_entries[ring].vector;
304 sds_ring->adapter = adapter;
305 sds_ring->num_desc = adapter->num_rxd;
306
307 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
308 INIT_LIST_HEAD(&sds_ring->free_list[i]);
309 }
310
311 return 0;
312
313err_out:
314 qlcnic_free_sw_resources(adapter);
315 return -ENOMEM;
316}
317
318/*
319 * Utility to translate from internal Phantom CRB address
320 * to external PCI CRB address.
321 */
322static u32 qlcnic_decode_crb_addr(u32 addr)
323{
324 int i;
325 u32 base_addr, offset, pci_base;
326
327 crb_addr_transform_setup();
328
329 pci_base = QLCNIC_ADDR_ERROR;
330 base_addr = addr & 0xfff00000;
331 offset = addr & 0x000fffff;
332
333 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
334 if (crb_addr_xform[i] == base_addr) {
335 pci_base = i << 20;
336 break;
337 }
338 }
339 if (pci_base == QLCNIC_ADDR_ERROR)
340 return pci_base;
341 else
342 return pci_base + offset;
343}
344
345#define QLCNIC_MAX_ROM_WAIT_USEC 100
346
347static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
348{
349 long timeout = 0;
350 long done = 0;
351
352 cond_resched();
353
354 while (done == 0) {
355 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
356 done &= 2;
357 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
358 dev_err(&adapter->pdev->dev,
359 "Timeout reached waiting for rom done");
360 return -EIO;
361 }
362 udelay(1);
363 }
364 return 0;
365}
366
367static int do_rom_fast_read(struct qlcnic_adapter *adapter,
368 int addr, int *valp)
369{
370 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
371 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
372 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
373 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
374 if (qlcnic_wait_rom_done(adapter)) {
375 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
376 return -EIO;
377 }
378 /* reset abyte_cnt and dummy_byte_cnt */
379 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
380 udelay(10);
381 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
382
383 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
384 return 0;
385}
386
387static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
388 u8 *bytes, size_t size)
389{
390 int addridx;
391 int ret = 0;
392
393 for (addridx = addr; addridx < (addr + size); addridx += 4) {
394 int v;
395 ret = do_rom_fast_read(adapter, addridx, &v);
396 if (ret != 0)
397 break;
398 *(__le32 *)bytes = cpu_to_le32(v);
399 bytes += 4;
400 }
401
402 return ret;
403}
404
405int
406qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
407 u8 *bytes, size_t size)
408{
409 int ret;
410
411 ret = qlcnic_rom_lock(adapter);
412 if (ret < 0)
413 return ret;
414
415 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
416
417 qlcnic_rom_unlock(adapter);
418 return ret;
419}
420
421int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
422{
423 int ret;
424
425 if (qlcnic_rom_lock(adapter) != 0)
426 return -EIO;
427
428 ret = do_rom_fast_read(adapter, addr, valp);
429 qlcnic_rom_unlock(adapter);
430 return ret;
431}
432
433int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
434{
435 int addr, val;
436 int i, n, init_delay;
437 struct crb_addr_pair *buf;
438 unsigned offset;
439 u32 off;
440 struct pci_dev *pdev = adapter->pdev;
441
442 /* resetall */
443 qlcnic_rom_lock(adapter);
469c221f 444 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
af19b491
AKS		 445 qlcnic_rom_unlock(adapter);
446
447 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
448 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
449 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
450 return -EIO;
451 }
452 offset = n & 0xffffU;
453 n = (n >> 16) & 0xffffU;
454
455 if (n >= 1024) {
456 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
457 return -EIO;
458 }
459
460 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
461 if (buf == NULL) {
462 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
463 return -ENOMEM;
464 }
465
466 for (i = 0; i < n; i++) {
467 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
468 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
469 kfree(buf);
470 return -EIO;
471 }
472
473 buf[i].addr = addr;
474 buf[i].data = val;
475 }
476
477 for (i = 0; i < n; i++) {
478
479 off = qlcnic_decode_crb_addr(buf[i].addr);
480 if (off == QLCNIC_ADDR_ERROR) {
481 dev_err(&pdev->dev, "CRB init value out of range %x\n",
482 buf[i].addr);
483 continue;
484 }
485 off += QLCNIC_PCI_CRBSPACE;
486
487 if (off & 1)
488 continue;
489
490 /* skipping cold reboot MAGIC */
491 if (off == QLCNIC_CAM_RAM(0x1fc))
492 continue;
493 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
494 continue;
495 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
496 continue;
497 if (off == (ROMUSB_GLB + 0xa8))
498 continue;
499 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
500 continue;
501 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
502 continue;
503 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
504 continue;
505 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
506 continue;
507 /* skip the function enable register */
508 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
509 continue;
510 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
511 continue;
512 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
513 continue;
514
515 init_delay = 1;
516 /* After writing this register, HW needs time for CRB */
517 /* to quiet down (else crb_window returns 0xffffffff) */
518 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
519 init_delay = 1000;
520
521 QLCWR32(adapter, off, buf[i].data);
522
523 msleep(init_delay);
524 }
525 kfree(buf);
526
527 /* p2dn replyCount */
528 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
529 /* disable_peg_cache 0 & 1*/
530 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
531 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
532
533 /* peg_clr_all */
534 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
535 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
536 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
537 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
538 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
539 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
540 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
541 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
542 return 0;
543}
544
b3a24649 545int
aa5e18c0
SC		 546qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
547
548 int timeo;
b3a24649
SC		 549 u32 val;
550
45918e2f
AC		 551 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
552 val = QLC_DEV_GET_DRV(val, adapter->portnum);
553 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
554 dev_err(&adapter->pdev->dev,
555 "Not an Ethernet NIC func=%u\n", val);
556 return -EIO;
b3a24649 557 }
45918e2f 558 adapter->physical_port = (val >> 2);
aa5e18c0
SC		 559 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
560 timeo = 30;
561
562 adapter->dev_init_timeo = timeo;
563
564 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
565 timeo = 10;
566
567 adapter->reset_ack_timeo = timeo;
b3a24649
SC		 568
569 return 0;
aa5e18c0
SC		 570}
571
8f891387 572int
573qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
574{
575 u32 ver = -1, min_ver;
576
577 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
578
579 ver = QLCNIC_DECODE_VERSION(ver);
580 min_ver = QLCNIC_MIN_FW_VERSION;
581
582 if (ver < min_ver) {
583 dev_err(&adapter->pdev->dev,
584 "firmware version %d.%d.%d unsupported."
585 "Min supported version %d.%d.%d\n",
586 _major(ver), _minor(ver), _build(ver),
587 _major(min_ver), _minor(min_ver), _build(min_ver));
588 return -EINVAL;
589 }
590
591 return 0;
592}
593
af19b491
AKS		 594static int
595qlcnic_has_mn(struct qlcnic_adapter *adapter)
596{
8f891387 597 u32 capability;
af19b491
AKS		 598 capability = 0;
599
251a84c9
AKS		 600 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
601 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
602 return 1;
af19b491 603
af19b491
AKS		 604 return 0;
605}
606
607static
608struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
609{
610 u32 i;
611 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
612 __le32 entries = cpu_to_le32(directory->num_entries);
613
614 for (i = 0; i < entries; i++) {
615
616 __le32 offs = cpu_to_le32(directory->findex) +
617 (i * cpu_to_le32(directory->entry_size));
618 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
619
620 if (tab_type == section)
621 return (struct uni_table_desc *) &unirom[offs];
622 }
623
624 return NULL;
625}
626
b7eff100
SC		 627#define FILEHEADER_SIZE (14 * 4)
628
af19b491 629static int
b7eff100 630qlcnic_validate_header(struct qlcnic_adapter *adapter)
af19b491 631{
af19b491 632 const u8 *unirom = adapter->fw->data;
b7eff100
SC		 633 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
634 __le32 fw_file_size = adapter->fw->size;
af19b491 635 __le32 entries;
b7eff100
SC		 636 __le32 entry_size;
637 __le32 tab_size;
638
639 if (fw_file_size < FILEHEADER_SIZE)
640 return -EINVAL;
641
642 entries = cpu_to_le32(directory->num_entries);
643 entry_size = cpu_to_le32(directory->entry_size);
644 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
645
646 if (fw_file_size < tab_size)
647 return -EINVAL;
648
649 return 0;
650}
651
652static int
653qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
654{
655 struct uni_table_desc *tab_desc;
656 struct uni_data_desc *descr;
657 const u8 *unirom = adapter->fw->data;
658 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
659 QLCNIC_UNI_BOOTLD_IDX_OFF));
660 __le32 offs;
661 __le32 tab_size;
662 __le32 data_size;
663
664 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
665
666 if (!tab_desc)
667 return -EINVAL;
668
669 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 670 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 671
672 if (adapter->fw->size < tab_size)
673 return -EINVAL;
674
675 offs = cpu_to_le32(tab_desc->findex) +
676 (cpu_to_le32(tab_desc->entry_size) * (idx));
677 descr = (struct uni_data_desc *)&unirom[offs];
678
22dfaa86 679 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 680
681 if (adapter->fw->size < data_size)
682 return -EINVAL;
683
684 return 0;
685}
686
687static int
688qlcnic_validate_fw(struct qlcnic_adapter *adapter)
689{
690 struct uni_table_desc *tab_desc;
691 struct uni_data_desc *descr;
692 const u8 *unirom = adapter->fw->data;
693 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
694 QLCNIC_UNI_FIRMWARE_IDX_OFF));
695 __le32 offs;
696 __le32 tab_size;
697 __le32 data_size;
698
699 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
700
701 if (!tab_desc)
702 return -EINVAL;
703
704 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 705 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 706
707 if (adapter->fw->size < tab_size)
708 return -EINVAL;
709
710 offs = cpu_to_le32(tab_desc->findex) +
711 (cpu_to_le32(tab_desc->entry_size) * (idx));
712 descr = (struct uni_data_desc *)&unirom[offs];
22dfaa86 713 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 714
715 if (adapter->fw->size < data_size)
716 return -EINVAL;
717
718 return 0;
719}
720
721static int
722qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
723{
724 struct uni_table_desc *ptab_descr;
725 const u8 *unirom = adapter->fw->data;
af19b491 726 int mn_present = qlcnic_has_mn(adapter);
b7eff100
SC		 727 __le32 entries;
728 __le32 entry_size;
729 __le32 tab_size;
730 u32 i;
af19b491
AKS		 731
732 ptab_descr = qlcnic_get_table_desc(unirom,
733 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
b7eff100
SC		 734 if (!ptab_descr)
735 return -EINVAL;
af19b491
AKS		 736
737 entries = cpu_to_le32(ptab_descr->num_entries);
b7eff100
SC		 738 entry_size = cpu_to_le32(ptab_descr->entry_size);
739 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
740
741 if (adapter->fw->size < tab_size)
742 return -EINVAL;
743
af19b491
AKS		 744nomn:
745 for (i = 0; i < entries; i++) {
746
747 __le32 flags, file_chiprev, offs;
748 u8 chiprev = adapter->ahw.revision_id;
749 u32 flagbit;
750
751 offs = cpu_to_le32(ptab_descr->findex) +
752 (i * cpu_to_le32(ptab_descr->entry_size));
753 flags = cpu_to_le32(*((int *)&unirom[offs] +
754 QLCNIC_UNI_FLAGS_OFF));
755 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
756 QLCNIC_UNI_CHIP_REV_OFF));
757
758 flagbit = mn_present ? 1 : 2;
759
760 if ((chiprev == file_chiprev) &&
761 ((1ULL << flagbit) & flags)) {
762 adapter->file_prd_off = offs;
763 return 0;
764 }
765 }
766 if (mn_present) {
767 mn_present = 0;
768 goto nomn;
769 }
b7eff100
SC		 770 return -EINVAL;
771}
772
773static int
774qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
775{
776 if (qlcnic_validate_header(adapter)) {
777 dev_err(&adapter->pdev->dev,
778 "unified image: header validation failed\n");
779 return -EINVAL;
780 }
781
782 if (qlcnic_validate_product_offs(adapter)) {
783 dev_err(&adapter->pdev->dev,
784 "unified image: product validation failed\n");
785 return -EINVAL;
786 }
787
788 if (qlcnic_validate_bootld(adapter)) {
789 dev_err(&adapter->pdev->dev,
790 "unified image: bootld validation failed\n");
791 return -EINVAL;
792 }
793
794 if (qlcnic_validate_fw(adapter)) {
795 dev_err(&adapter->pdev->dev,
796 "unified image: firmware validation failed\n");
797 return -EINVAL;
798 }
799
800 return 0;
af19b491
AKS		 801}
802
803static
804struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
805 u32 section, u32 idx_offset)
806{
807 const u8 *unirom = adapter->fw->data;
808 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
809 idx_offset));
810 struct uni_table_desc *tab_desc;
811 __le32 offs;
812
813 tab_desc = qlcnic_get_table_desc(unirom, section);
814
815 if (tab_desc == NULL)
816 return NULL;
817
818 offs = cpu_to_le32(tab_desc->findex) +
819 (cpu_to_le32(tab_desc->entry_size) * idx);
820
821 return (struct uni_data_desc *)&unirom[offs];
822}
823
824static u8 *
825qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
826{
827 u32 offs = QLCNIC_BOOTLD_START;
828
829 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
830 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
831 QLCNIC_UNI_DIR_SECT_BOOTLD,
832 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
833
834 return (u8 *)&adapter->fw->data[offs];
835}
836
837static u8 *
838qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
839{
840 u32 offs = QLCNIC_IMAGE_START;
841
842 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
843 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
844 QLCNIC_UNI_DIR_SECT_FW,
845 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
846
847 return (u8 *)&adapter->fw->data[offs];
848}
849
850static __le32
851qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
852{
853 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
854 return cpu_to_le32((qlcnic_get_data_desc(adapter,
855 QLCNIC_UNI_DIR_SECT_FW,
856 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
857 else
858 return cpu_to_le32(
859 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
860}
861
862static __le32
863qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
864{
865 struct uni_data_desc *fw_data_desc;
866 const struct firmware *fw = adapter->fw;
867 __le32 major, minor, sub;
868 const u8 *ver_str;
869 int i, ret;
870
871 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
872 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
873
874 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
875 QLCNIC_UNI_FIRMWARE_IDX_OFF);
876 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
877 cpu_to_le32(fw_data_desc->size) - 17;
878
879 for (i = 0; i < 12; i++) {
880 if (!strncmp(&ver_str[i], "REV=", 4)) {
881 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
882 &major, &minor, &sub);
883 if (ret != 3)
884 return 0;
885 else
886 return major + (minor << 8) + (sub << 16);
887 }
888 }
889
890 return 0;
891}
892
893static __le32
894qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
895{
896 const struct firmware *fw = adapter->fw;
897 __le32 bios_ver, prd_off = adapter->file_prd_off;
898
899 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
900 return cpu_to_le32(
901 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
902
903 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
904 + QLCNIC_UNI_BIOS_VERSION_OFF));
905
addd5abf 906 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
af19b491
AKS		 907}
908
909int
910qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
911{
912 u32 count, old_count;
913 u32 val, version, major, minor, build;
914 int i, timeout;
915
916 if (adapter->need_fw_reset)
917 return 1;
918
919 /* last attempt had failed */
920 if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
921 return 1;
922
923 old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
924
925 for (i = 0; i < 10; i++) {
926
927 timeout = msleep_interruptible(200);
928 if (timeout) {
929 QLCWR32(adapter, CRB_CMDPEG_STATE,
930 PHAN_INITIALIZE_FAILED);
931 return -EINTR;
932 }
933
934 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
935 if (count != old_count)
936 break;
937 }
938
939 /* firmware is dead */
940 if (count == old_count)
941 return 1;
942
943 /* check if we have got newer or different file firmware */
944 if (adapter->fw) {
945
946 val = qlcnic_get_fw_version(adapter);
947
948 version = QLCNIC_DECODE_VERSION(val);
949
950 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
951 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
952 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
953
954 if (version > QLCNIC_VERSION_CODE(major, minor, build))
955 return 1;
956 }
957
958 return 0;
959}
960
961static const char *fw_name[] = {
962 QLCNIC_UNIFIED_ROMIMAGE_NAME,
963 QLCNIC_FLASH_ROMIMAGE_NAME,
964};
965
966int
967qlcnic_load_firmware(struct qlcnic_adapter *adapter)
968{
969 u64 *ptr64;
970 u32 i, flashaddr, size;
971 const struct firmware *fw = adapter->fw;
972 struct pci_dev *pdev = adapter->pdev;
973
974 dev_info(&pdev->dev, "loading firmware from %s\n",
975 fw_name[adapter->fw_type]);
976
977 if (fw) {
978 __le64 data;
979
980 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
981
982 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
983 flashaddr = QLCNIC_BOOTLD_START;
984
985 for (i = 0; i < size; i++) {
986 data = cpu_to_le64(ptr64[i]);
987
988 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
989 return -EIO;
990
991 flashaddr += 8;
992 }
993
994 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
995
996 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
997 flashaddr = QLCNIC_IMAGE_START;
998
999 for (i = 0; i < size; i++) {
1000 data = cpu_to_le64(ptr64[i]);
1001
1002 if (qlcnic_pci_mem_write_2M(adapter,
1003 flashaddr, data))
1004 return -EIO;
1005
1006 flashaddr += 8;
1007 }
0bc92b5b
AKS		 1008
1009 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1010 if (size) {
1011 data = cpu_to_le64(ptr64[i]);
1012
1013 if (qlcnic_pci_mem_write_2M(adapter,
1014 flashaddr, data))
1015 return -EIO;
1016 }
1017
af19b491
AKS		 1018 } else {
1019 u64 data;
1020 u32 hi, lo;
1021
1022 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1023 flashaddr = QLCNIC_BOOTLD_START;
1024
1025 for (i = 0; i < size; i++) {
1026 if (qlcnic_rom_fast_read(adapter,
1027 flashaddr, (int *)&lo) != 0)
1028 return -EIO;
1029 if (qlcnic_rom_fast_read(adapter,
1030 flashaddr + 4, (int *)&hi) != 0)
1031 return -EIO;
1032
1033 data = (((u64)hi << 32) | lo);
1034
1035 if (qlcnic_pci_mem_write_2M(adapter,
1036 flashaddr, data))
1037 return -EIO;
1038
1039 flashaddr += 8;
1040 }
1041 }
1042 msleep(1);
1043
1044 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1045 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1046 return 0;
1047}
1048
1049static int
1050qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1051{
1052 __le32 val;
8f891387 1053 u32 ver, bios, min_size;
af19b491
AKS		 1054 struct pci_dev *pdev = adapter->pdev;
1055 const struct firmware *fw = adapter->fw;
1056 u8 fw_type = adapter->fw_type;
1057
1058 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
b7eff100 1059 if (qlcnic_validate_unified_romimage(adapter))
af19b491
AKS		 1060 return -EINVAL;
1061
1062 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1063 } else {
1064 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1065 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1066 return -EINVAL;
1067
1068 min_size = QLCNIC_FW_MIN_SIZE;
1069 }
1070
1071 if (fw->size < min_size)
1072 return -EINVAL;
1073
1074 val = qlcnic_get_fw_version(adapter);
af19b491
AKS		 1075 ver = QLCNIC_DECODE_VERSION(val);
1076
8f891387 1077 if (ver < QLCNIC_MIN_FW_VERSION) {
af19b491
AKS		 1078 dev_err(&pdev->dev,
1079 "%s: firmware version %d.%d.%d unsupported\n",
1080 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1081 return -EINVAL;
1082 }
1083
1084 val = qlcnic_get_bios_version(adapter);
1085 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1086 if ((__force u32)val != bios) {
1087 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1088 fw_name[fw_type]);
1089 return -EINVAL;
1090 }
1091
1092 /* check if flashed firmware is newer */
1093 if (qlcnic_rom_fast_read(adapter,
1094 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1095 return -EIO;
1096
1097 val = QLCNIC_DECODE_VERSION(val);
1098 if (val > ver) {
1099 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1100 fw_name[fw_type]);
1101 return -EINVAL;
1102 }
1103
1104 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1105 return 0;
1106}
1107
1108static void
1109qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1110{
1111 u8 fw_type;
1112
1113 switch (adapter->fw_type) {
1114 case QLCNIC_UNKNOWN_ROMIMAGE:
1115 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1116 break;
1117
1118 case QLCNIC_UNIFIED_ROMIMAGE:
1119 default:
1120 fw_type = QLCNIC_FLASH_ROMIMAGE;
1121 break;
1122 }
1123
1124 adapter->fw_type = fw_type;
1125}
1126
1127
1128
1129void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1130{
1131 struct pci_dev *pdev = adapter->pdev;
1132 int rc;
1133
1134 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1135
1136next:
1137 qlcnic_get_next_fwtype(adapter);
1138
1139 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1140 adapter->fw = NULL;
1141 } else {
1142 rc = request_firmware(&adapter->fw,
1143 fw_name[adapter->fw_type], &pdev->dev);
1144 if (rc != 0)
1145 goto next;
1146
1147 rc = qlcnic_validate_firmware(adapter);
1148 if (rc != 0) {
1149 release_firmware(adapter->fw);
1150 msleep(1);
1151 goto next;
1152 }
1153 }
1154}
1155
1156
1157void
1158qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1159{
1160 if (adapter->fw)
1161 release_firmware(adapter->fw);
1162 adapter->fw = NULL;
1163}
1164
900c6cff 1165static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
af19b491
AKS		 1166{
1167 u32 val;
1168 int retries = 60;
1169
1170 do {
1171 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1172
1173 switch (val) {
1174 case PHAN_INITIALIZE_COMPLETE:
1175 case PHAN_INITIALIZE_ACK:
1176 return 0;
1177 case PHAN_INITIALIZE_FAILED:
1178 goto out_err;
1179 default:
1180 break;
1181 }
1182
1183 msleep(500);
1184
1185 } while (--retries);
1186
1187 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1188
1189out_err:
900c6cff
AKS		 1190 dev_err(&adapter->pdev->dev, "Command Peg initialization not "
1191 "complete, state: 0x%x.\n", val);
af19b491
AKS		 1192 return -EIO;
1193}
1194
1195static int
1196qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1197{
1198 u32 val;
1199 int retries = 2000;
1200
1201 do {
1202 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1203
1204 if (val == PHAN_PEG_RCV_INITIALIZED)
1205 return 0;
1206
1207 msleep(10);
1208
1209 } while (--retries);
1210
1211 if (!retries) {
1212 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1213 "complete, state: 0x%x.\n", val);
1214 return -EIO;
1215 }
1216
1217 return 0;
1218}
1219
1220int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1221{
1222 int err;
1223
900c6cff
AKS		 1224 err = qlcnic_cmd_peg_ready(adapter);
1225 if (err)
1226 return err;
1227
af19b491
AKS		 1228 err = qlcnic_receive_peg_ready(adapter);
1229 if (err)
1230 return err;
1231
af19b491
AKS		 1232 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1233
1234 return err;
1235}
1236
1237static void
1238qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1239 struct qlcnic_fw_msg *msg)
1240{
1241 u32 cable_OUI;
1242 u16 cable_len;
1243 u16 link_speed;
1244 u8 link_status, module, duplex, autoneg;
1245 struct net_device *netdev = adapter->netdev;
1246
1247 adapter->has_link_events = 1;
1248
1249 cable_OUI = msg->body[1] & 0xffffffff;
1250 cable_len = (msg->body[1] >> 32) & 0xffff;
1251 link_speed = (msg->body[1] >> 48) & 0xffff;
1252
1253 link_status = msg->body[2] & 0xff;
1254 duplex = (msg->body[2] >> 16) & 0xff;
1255 autoneg = (msg->body[2] >> 24) & 0xff;
1256
1257 module = (msg->body[2] >> 8) & 0xff;
1258 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1259 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1260 "length %d\n", cable_OUI, cable_len);
1261 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1262 dev_info(&netdev->dev, "unsupported cable length %d\n",
1263 cable_len);
1264
1265 qlcnic_advert_link_change(adapter, link_status);
1266
1267 if (duplex == LINKEVENT_FULL_DUPLEX)
1268 adapter->link_duplex = DUPLEX_FULL;
1269 else
1270 adapter->link_duplex = DUPLEX_HALF;
1271
1272 adapter->module_type = module;
1273 adapter->link_autoneg = autoneg;
1274 adapter->link_speed = link_speed;
1275}
1276
1277static void
1278qlcnic_handle_fw_message(int desc_cnt, int index,
1279 struct qlcnic_host_sds_ring *sds_ring)
1280{
1281 struct qlcnic_fw_msg msg;
1282 struct status_desc *desc;
1283 int i = 0, opcode;
1284
1285 while (desc_cnt > 0 && i < 8) {
1286 desc = &sds_ring->desc_head[index];
1287 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1288 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1289
1290 index = get_next_index(index, sds_ring->num_desc);
1291 desc_cnt--;
1292 }
1293
1294 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1295 switch (opcode) {
1296 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1297 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1298 break;
1299 default:
1300 break;
1301 }
1302}
1303
1304static int
1305qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1306 struct qlcnic_host_rds_ring *rds_ring,
1307 struct qlcnic_rx_buffer *buffer)
1308{
1309 struct sk_buff *skb;
1310 dma_addr_t dma;
1311 struct pci_dev *pdev = adapter->pdev;
1312
96659828
AKS		 1313 skb = dev_alloc_skb(rds_ring->skb_size);
1314 if (!skb) {
8bfe8b91 1315 adapter->stats.skb_alloc_failure++;
af19b491 1316 return -ENOMEM;
8bfe8b91 1317 }
af19b491 1318
04746ff1 1319 skb_reserve(skb, NET_IP_ALIGN);
af19b491
AKS		 1320
1321 dma = pci_map_single(pdev, skb->data,
1322 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1323
1324 if (pci_dma_mapping_error(pdev, dma)) {
8ae6df97 1325 adapter->stats.rx_dma_map_error++;
af19b491 1326 dev_kfree_skb_any(skb);
af19b491
AKS		 1327 return -ENOMEM;
1328 }
1329
1330 buffer->skb = skb;
1331 buffer->dma = dma;
af19b491
AKS		 1332
1333 return 0;
1334}
1335
1336static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1337 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1338{
1339 struct qlcnic_rx_buffer *buffer;
1340 struct sk_buff *skb;
1341
1342 buffer = &rds_ring->rx_buf_arr[index];
1343
96659828
AKS		 1344 if (unlikely(buffer->skb == NULL)) {
1345 WARN_ON(1);
1346 return NULL;
1347 }
1348
af19b491
AKS		 1349 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1350 PCI_DMA_FROMDEVICE);
1351
1352 skb = buffer->skb;
af19b491
AKS		 1353
1354 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1355 adapter->stats.csummed++;
1356 skb->ip_summed = CHECKSUM_UNNECESSARY;
1357 } else {
1358 skb->ip_summed = CHECKSUM_NONE;
1359 }
1360
1361 skb->dev = adapter->netdev;
1362
1363 buffer->skb = NULL;
96659828 1364
af19b491
AKS		 1365 return skb;
1366}
1367
1368static struct qlcnic_rx_buffer *
1369qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1370 struct qlcnic_host_sds_ring *sds_ring,
1371 int ring, u64 sts_data0)
1372{
1373 struct net_device *netdev = adapter->netdev;
1374 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1375 struct qlcnic_rx_buffer *buffer;
1376 struct sk_buff *skb;
1377 struct qlcnic_host_rds_ring *rds_ring;
1378 int index, length, cksum, pkt_offset;
1379
1380 if (unlikely(ring >= adapter->max_rds_rings))
1381 return NULL;
1382
1383 rds_ring = &recv_ctx->rds_rings[ring];
1384
1385 index = qlcnic_get_sts_refhandle(sts_data0);
1386 if (unlikely(index >= rds_ring->num_desc))
1387 return NULL;
1388
1389 buffer = &rds_ring->rx_buf_arr[index];
1390
1391 length = qlcnic_get_sts_totallength(sts_data0);
1392 cksum = qlcnic_get_sts_status(sts_data0);
1393 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1394
1395 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1396 if (!skb)
1397 return buffer;
1398
1399 if (length > rds_ring->skb_size)
1400 skb_put(skb, rds_ring->skb_size);
1401 else
1402 skb_put(skb, length);
1403
1404 if (pkt_offset)
1405 skb_pull(skb, pkt_offset);
1406
af19b491
AKS		 1407 skb->protocol = eth_type_trans(skb, netdev);
1408
1409 napi_gro_receive(&sds_ring->napi, skb);
1410
1411 adapter->stats.rx_pkts++;
1412 adapter->stats.rxbytes += length;
1413
1414 return buffer;
1415}
1416
1417#define QLC_TCP_HDR_SIZE 20
1418#define QLC_TCP_TS_OPTION_SIZE 12
1419#define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1420
1421static struct qlcnic_rx_buffer *
1422qlcnic_process_lro(struct qlcnic_adapter *adapter,
1423 struct qlcnic_host_sds_ring *sds_ring,
1424 int ring, u64 sts_data0, u64 sts_data1)
1425{
1426 struct net_device *netdev = adapter->netdev;
1427 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1428 struct qlcnic_rx_buffer *buffer;
1429 struct sk_buff *skb;
1430 struct qlcnic_host_rds_ring *rds_ring;
1431 struct iphdr *iph;
1432 struct tcphdr *th;
1433 bool push, timestamp;
1434 int l2_hdr_offset, l4_hdr_offset;
1435 int index;
1436 u16 lro_length, length, data_offset;
1437 u32 seq_number;
1438
1439 if (unlikely(ring > adapter->max_rds_rings))
1440 return NULL;
1441
1442 rds_ring = &recv_ctx->rds_rings[ring];
1443
1444 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1445 if (unlikely(index > rds_ring->num_desc))
1446 return NULL;
1447
1448 buffer = &rds_ring->rx_buf_arr[index];
1449
1450 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1451 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1452 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1453 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1454 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1455 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1456
1457 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1458 if (!skb)
1459 return buffer;
1460
1461 if (timestamp)
1462 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1463 else
1464 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1465
1466 skb_put(skb, lro_length + data_offset);
1467
af19b491
AKS		 1468 skb_pull(skb, l2_hdr_offset);
1469 skb->protocol = eth_type_trans(skb, netdev);
1470
1471 iph = (struct iphdr *)skb->data;
1472 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1473
1474 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1475 iph->tot_len = htons(length);
1476 iph->check = 0;
1477 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1478 th->psh = push;
1479 th->seq = htonl(seq_number);
1480
1481 length = skb->len;
1482
1483 netif_receive_skb(skb);
1484
1485 adapter->stats.lro_pkts++;
8bfe8b91 1486 adapter->stats.lrobytes += length;
af19b491
AKS		 1487
1488 return buffer;
1489}
1490
1491int
1492qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1493{
1494 struct qlcnic_adapter *adapter = sds_ring->adapter;
1495 struct list_head *cur;
1496 struct status_desc *desc;
1497 struct qlcnic_rx_buffer *rxbuf;
1498 u64 sts_data0, sts_data1;
1499
1500 int count = 0;
1501 int opcode, ring, desc_cnt;
1502 u32 consumer = sds_ring->consumer;
1503
1504 while (count < max) {
1505 desc = &sds_ring->desc_head[consumer];
1506 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1507
1508 if (!(sts_data0 & STATUS_OWNER_HOST))
1509 break;
1510
1511 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1512 opcode = qlcnic_get_sts_opcode(sts_data0);
1513
1514 switch (opcode) {
1515 case QLCNIC_RXPKT_DESC:
1516 case QLCNIC_OLD_RXPKT_DESC:
1517 case QLCNIC_SYN_OFFLOAD:
1518 ring = qlcnic_get_sts_type(sts_data0);
1519 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1520 ring, sts_data0);
1521 break;
1522 case QLCNIC_LRO_DESC:
1523 ring = qlcnic_get_lro_sts_type(sts_data0);
1524 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1525 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1526 ring, sts_data0, sts_data1);
1527 break;
1528 case QLCNIC_RESPONSE_DESC:
1529 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1530 default:
1531 goto skip;
1532 }
1533
1534 WARN_ON(desc_cnt > 1);
1535
96659828 1536 if (likely(rxbuf))
af19b491 1537 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
8ae6df97
AKS		 1538 else
1539 adapter->stats.null_rxbuf++;
af19b491
AKS		 1540
1541skip:
1542 for (; desc_cnt > 0; desc_cnt--) {
1543 desc = &sds_ring->desc_head[consumer];
1544 desc->status_desc_data[0] =
1545 cpu_to_le64(STATUS_OWNER_PHANTOM);
1546 consumer = get_next_index(consumer, sds_ring->num_desc);
1547 }
1548 count++;
1549 }
1550
1551 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1552 struct qlcnic_host_rds_ring *rds_ring =
1553 &adapter->recv_ctx.rds_rings[ring];
1554
1555 if (!list_empty(&sds_ring->free_list[ring])) {
1556 list_for_each(cur, &sds_ring->free_list[ring]) {
1557 rxbuf = list_entry(cur,
1558 struct qlcnic_rx_buffer, list);
1559 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1560 }
1561 spin_lock(&rds_ring->lock);
1562 list_splice_tail_init(&sds_ring->free_list[ring],
1563 &rds_ring->free_list);
1564 spin_unlock(&rds_ring->lock);
1565 }
1566
1567 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1568 }
1569
1570 if (count) {
1571 sds_ring->consumer = consumer;
1572 writel(consumer, sds_ring->crb_sts_consumer);
1573 }
1574
1575 return count;
1576}
1577
1578void
1579qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1580 struct qlcnic_host_rds_ring *rds_ring)
1581{
1582 struct rcv_desc *pdesc;
1583 struct qlcnic_rx_buffer *buffer;
1584 int producer, count = 0;
1585 struct list_head *head;
1586
ed6f1353
AKS		 1587 spin_lock(&rds_ring->lock);
1588
af19b491
AKS		 1589 producer = rds_ring->producer;
1590
af19b491
AKS		 1591 head = &rds_ring->free_list;
1592 while (!list_empty(head)) {
1593
1594 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1595
1596 if (!buffer->skb) {
1597 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1598 break;
1599 }
1600
1601 count++;
1602 list_del(&buffer->list);
1603
1604 /* make a rcv descriptor */
1605 pdesc = &rds_ring->desc_head[producer];
1606 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1607 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1608 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1609
1610 producer = get_next_index(producer, rds_ring->num_desc);
1611 }
af19b491
AKS		 1612
1613 if (count) {
1614 rds_ring->producer = producer;
1615 writel((producer-1) & (rds_ring->num_desc-1),
1616 rds_ring->crb_rcv_producer);
1617 }
ed6f1353 1618 spin_unlock(&rds_ring->lock);
af19b491
AKS		 1619}
1620
1621static void
1622qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1623 struct qlcnic_host_rds_ring *rds_ring)
1624{
1625 struct rcv_desc *pdesc;
1626 struct qlcnic_rx_buffer *buffer;
1627 int producer, count = 0;
1628 struct list_head *head;
1629
af19b491
AKS		 1630 if (!spin_trylock(&rds_ring->lock))
1631 return;
1632
ed6f1353
AKS		 1633 producer = rds_ring->producer;
1634
af19b491
AKS		 1635 head = &rds_ring->free_list;
1636 while (!list_empty(head)) {
1637
1638 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1639
1640 if (!buffer->skb) {
1641 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1642 break;
1643 }
1644
1645 count++;
1646 list_del(&buffer->list);
1647
1648 /* make a rcv descriptor */
1649 pdesc = &rds_ring->desc_head[producer];
1650 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1651 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1652 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1653
1654 producer = get_next_index(producer, rds_ring->num_desc);
1655 }
1656
1657 if (count) {
1658 rds_ring->producer = producer;
1659 writel((producer - 1) & (rds_ring->num_desc - 1),
1660 rds_ring->crb_rcv_producer);
1661 }
1662 spin_unlock(&rds_ring->lock);
1663}
1664
cdaff185
AKS		 1665static struct qlcnic_rx_buffer *
1666qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1667 struct qlcnic_host_sds_ring *sds_ring,
1668 int ring, u64 sts_data0)
1669{
1670 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1671 struct qlcnic_rx_buffer *buffer;
1672 struct sk_buff *skb;
1673 struct qlcnic_host_rds_ring *rds_ring;
1674 int index, length, cksum, pkt_offset;
1675
1676 if (unlikely(ring >= adapter->max_rds_rings))
1677 return NULL;
1678
1679 rds_ring = &recv_ctx->rds_rings[ring];
1680
1681 index = qlcnic_get_sts_refhandle(sts_data0);
1682 if (unlikely(index >= rds_ring->num_desc))
1683 return NULL;
1684
1685 buffer = &rds_ring->rx_buf_arr[index];
1686
1687 length = qlcnic_get_sts_totallength(sts_data0);
1688 cksum = qlcnic_get_sts_status(sts_data0);
1689 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1690
1691 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1692 if (!skb)
1693 return buffer;
1694
1695 skb_put(skb, rds_ring->skb_size);
1696
1697 if (pkt_offset)
1698 skb_pull(skb, pkt_offset);
1699
cdaff185
AKS		 1700 if (!qlcnic_check_loopback_buff(skb->data))
1701 adapter->diag_cnt++;
1702
1703 dev_kfree_skb_any(skb);
8bfe8b91
SC		 1704 adapter->stats.rx_pkts++;
1705 adapter->stats.rxbytes += length;
cdaff185
AKS		 1706
1707 return buffer;
1708}
1709
1710void
1711qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1712{
1713 struct qlcnic_adapter *adapter = sds_ring->adapter;
1714 struct status_desc *desc;
1715 struct qlcnic_rx_buffer *rxbuf;
1716 u64 sts_data0;
1717
1718 int opcode, ring, desc_cnt;
1719 u32 consumer = sds_ring->consumer;
1720
1721 desc = &sds_ring->desc_head[consumer];
1722 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1723
1724 if (!(sts_data0 & STATUS_OWNER_HOST))
1725 return;
1726
1727 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1728 opcode = qlcnic_get_sts_opcode(sts_data0);
1729
1730 ring = qlcnic_get_sts_type(sts_data0);
1731 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1732 ring, sts_data0);
1733
1734 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1735 consumer = get_next_index(consumer, sds_ring->num_desc);
1736
1737 sds_ring->consumer = consumer;
1738 writel(consumer, sds_ring->crb_sts_consumer);
1739}
2e9d722d
AC		 1740
1741void
1742qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1743 u8 alt_mac, u8 *mac)
1744{
1745 u32 mac_low, mac_high;
1746 int i;
1747
1748 mac_low = QLCRD32(adapter, off1);
1749 mac_high = QLCRD32(adapter, off2);
1750
1751 if (alt_mac) {
1752 mac_low |= (mac_low >> 16) | (mac_high << 16);
1753 mac_high >>= 16;
1754 }
1755
1756 for (i = 0; i < 2; i++)
1757 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1758 for (i = 2; i < 6; i++)
1759 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1760}
Clone of davem's net-next-2.6 tree