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qlcnic: firmware initialization update
[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
d4066833
SC		 438 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
439 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
440
af19b491 441 qlcnic_rom_lock(adapter);
469c221f 442 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
af19b491
AKS		 443 qlcnic_rom_unlock(adapter);
444
d4066833 445 /* Init HW CRB block */
af19b491
AKS		 446 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
447 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
448 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
449 return -EIO;
450 }
451 offset = n & 0xffffU;
452 n = (n >> 16) & 0xffffU;
453
454 if (n >= 1024) {
455 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
456 return -EIO;
457 }
458
459 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
460 if (buf == NULL) {
461 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
462 return -ENOMEM;
463 }
464
465 for (i = 0; i < n; i++) {
466 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
467 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
468 kfree(buf);
469 return -EIO;
470 }
471
472 buf[i].addr = addr;
473 buf[i].data = val;
474 }
475
476 for (i = 0; i < n; i++) {
477
478 off = qlcnic_decode_crb_addr(buf[i].addr);
479 if (off == QLCNIC_ADDR_ERROR) {
480 dev_err(&pdev->dev, "CRB init value out of range %x\n",
481 buf[i].addr);
482 continue;
483 }
484 off += QLCNIC_PCI_CRBSPACE;
485
486 if (off & 1)
487 continue;
488
489 /* skipping cold reboot MAGIC */
490 if (off == QLCNIC_CAM_RAM(0x1fc))
491 continue;
492 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
493 continue;
494 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
495 continue;
496 if (off == (ROMUSB_GLB + 0xa8))
497 continue;
498 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
499 continue;
500 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
501 continue;
502 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
503 continue;
504 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
505 continue;
506 /* skip the function enable register */
507 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
508 continue;
509 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
510 continue;
511 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
512 continue;
513
514 init_delay = 1;
515 /* After writing this register, HW needs time for CRB */
516 /* to quiet down (else crb_window returns 0xffffffff) */
517 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
518 init_delay = 1000;
519
520 QLCWR32(adapter, off, buf[i].data);
521
522 msleep(init_delay);
523 }
524 kfree(buf);
525
d4066833 526 /* Initialize protocol process engine */
af19b491 527 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
af19b491
AKS		 528 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
529 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
af19b491
AKS		 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);
d4066833
SC		 538 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
539 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
540 msleep(1);
541 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
542 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
af19b491
AKS		 543 return 0;
544}
545
d4066833
SC		 546int
547qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
548{
549 u32 heartbit, ret = -EIO;
550 int retries = QLCNIC_HEARTBEAT_RETRY_COUNT;
551
552 adapter->heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
553 do {
554 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
555 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
556 if (heartbit != adapter->heartbit) {
557 /* Complete firmware handshake */
558 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
559 ret = QLCNIC_RCODE_SUCCESS;
560 break;
561 }
562 } while (--retries);
563
564 return ret;
565}
566
b3a24649 567int
aa5e18c0
SC		 568qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
569
570 int timeo;
b3a24649
SC		 571 u32 val;
572
45918e2f
AC		 573 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
574 val = QLC_DEV_GET_DRV(val, adapter->portnum);
575 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
576 dev_err(&adapter->pdev->dev,
577 "Not an Ethernet NIC func=%u\n", val);
578 return -EIO;
b3a24649 579 }
45918e2f 580 adapter->physical_port = (val >> 2);
aa5e18c0 581 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
251b036a 582 timeo = QLCNIC_INIT_TIMEOUT_SECS;
aa5e18c0
SC		 583
584 adapter->dev_init_timeo = timeo;
585
586 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
251b036a 587 timeo = QLCNIC_RESET_TIMEOUT_SECS;
aa5e18c0
SC		 588
589 adapter->reset_ack_timeo = timeo;
b3a24649
SC		 590
591 return 0;
aa5e18c0
SC		 592}
593
8f891387 594int
595qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
596{
597 u32 ver = -1, min_ver;
598
599 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
600
601 ver = QLCNIC_DECODE_VERSION(ver);
602 min_ver = QLCNIC_MIN_FW_VERSION;
603
604 if (ver < min_ver) {
605 dev_err(&adapter->pdev->dev,
606 "firmware version %d.%d.%d unsupported."
607 "Min supported version %d.%d.%d\n",
608 _major(ver), _minor(ver), _build(ver),
609 _major(min_ver), _minor(min_ver), _build(min_ver));
610 return -EINVAL;
611 }
612
613 return 0;
614}
615
af19b491
AKS		 616static int
617qlcnic_has_mn(struct qlcnic_adapter *adapter)
618{
8f891387 619 u32 capability;
af19b491
AKS		 620 capability = 0;
621
251a84c9
AKS		 622 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
623 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
624 return 1;
af19b491 625
af19b491
AKS		 626 return 0;
627}
628
629static
630struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
631{
632 u32 i;
633 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
634 __le32 entries = cpu_to_le32(directory->num_entries);
635
636 for (i = 0; i < entries; i++) {
637
638 __le32 offs = cpu_to_le32(directory->findex) +
639 (i * cpu_to_le32(directory->entry_size));
640 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
641
642 if (tab_type == section)
643 return (struct uni_table_desc *) &unirom[offs];
644 }
645
646 return NULL;
647}
648
b7eff100
SC		 649#define FILEHEADER_SIZE (14 * 4)
650
af19b491 651static int
b7eff100 652qlcnic_validate_header(struct qlcnic_adapter *adapter)
af19b491 653{
af19b491 654 const u8 *unirom = adapter->fw->data;
b7eff100
SC		 655 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
656 __le32 fw_file_size = adapter->fw->size;
af19b491 657 __le32 entries;
b7eff100
SC		 658 __le32 entry_size;
659 __le32 tab_size;
660
661 if (fw_file_size < FILEHEADER_SIZE)
662 return -EINVAL;
663
664 entries = cpu_to_le32(directory->num_entries);
665 entry_size = cpu_to_le32(directory->entry_size);
666 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
667
668 if (fw_file_size < tab_size)
669 return -EINVAL;
670
671 return 0;
672}
673
674static int
675qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
676{
677 struct uni_table_desc *tab_desc;
678 struct uni_data_desc *descr;
679 const u8 *unirom = adapter->fw->data;
680 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
681 QLCNIC_UNI_BOOTLD_IDX_OFF));
682 __le32 offs;
683 __le32 tab_size;
684 __le32 data_size;
685
686 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
687
688 if (!tab_desc)
689 return -EINVAL;
690
691 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 692 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 693
694 if (adapter->fw->size < tab_size)
695 return -EINVAL;
696
697 offs = cpu_to_le32(tab_desc->findex) +
698 (cpu_to_le32(tab_desc->entry_size) * (idx));
699 descr = (struct uni_data_desc *)&unirom[offs];
700
22dfaa86 701 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 702
703 if (adapter->fw->size < data_size)
704 return -EINVAL;
705
706 return 0;
707}
708
709static int
710qlcnic_validate_fw(struct qlcnic_adapter *adapter)
711{
712 struct uni_table_desc *tab_desc;
713 struct uni_data_desc *descr;
714 const u8 *unirom = adapter->fw->data;
715 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
716 QLCNIC_UNI_FIRMWARE_IDX_OFF));
717 __le32 offs;
718 __le32 tab_size;
719 __le32 data_size;
720
721 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
722
723 if (!tab_desc)
724 return -EINVAL;
725
726 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 727 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 728
729 if (adapter->fw->size < tab_size)
730 return -EINVAL;
731
732 offs = cpu_to_le32(tab_desc->findex) +
733 (cpu_to_le32(tab_desc->entry_size) * (idx));
734 descr = (struct uni_data_desc *)&unirom[offs];
22dfaa86 735 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 736
737 if (adapter->fw->size < data_size)
738 return -EINVAL;
739
740 return 0;
741}
742
743static int
744qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
745{
746 struct uni_table_desc *ptab_descr;
747 const u8 *unirom = adapter->fw->data;
af19b491 748 int mn_present = qlcnic_has_mn(adapter);
b7eff100
SC		 749 __le32 entries;
750 __le32 entry_size;
751 __le32 tab_size;
752 u32 i;
af19b491
AKS		 753
754 ptab_descr = qlcnic_get_table_desc(unirom,
755 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
b7eff100
SC		 756 if (!ptab_descr)
757 return -EINVAL;
af19b491
AKS		 758
759 entries = cpu_to_le32(ptab_descr->num_entries);
b7eff100
SC		 760 entry_size = cpu_to_le32(ptab_descr->entry_size);
761 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
762
763 if (adapter->fw->size < tab_size)
764 return -EINVAL;
765
af19b491
AKS		 766nomn:
767 for (i = 0; i < entries; i++) {
768
769 __le32 flags, file_chiprev, offs;
770 u8 chiprev = adapter->ahw.revision_id;
771 u32 flagbit;
772
773 offs = cpu_to_le32(ptab_descr->findex) +
774 (i * cpu_to_le32(ptab_descr->entry_size));
775 flags = cpu_to_le32(*((int *)&unirom[offs] +
776 QLCNIC_UNI_FLAGS_OFF));
777 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
778 QLCNIC_UNI_CHIP_REV_OFF));
779
780 flagbit = mn_present ? 1 : 2;
781
782 if ((chiprev == file_chiprev) &&
783 ((1ULL << flagbit) & flags)) {
784 adapter->file_prd_off = offs;
785 return 0;
786 }
787 }
788 if (mn_present) {
789 mn_present = 0;
790 goto nomn;
791 }
b7eff100
SC		 792 return -EINVAL;
793}
794
795static int
796qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
797{
798 if (qlcnic_validate_header(adapter)) {
799 dev_err(&adapter->pdev->dev,
800 "unified image: header validation failed\n");
801 return -EINVAL;
802 }
803
804 if (qlcnic_validate_product_offs(adapter)) {
805 dev_err(&adapter->pdev->dev,
806 "unified image: product validation failed\n");
807 return -EINVAL;
808 }
809
810 if (qlcnic_validate_bootld(adapter)) {
811 dev_err(&adapter->pdev->dev,
812 "unified image: bootld validation failed\n");
813 return -EINVAL;
814 }
815
816 if (qlcnic_validate_fw(adapter)) {
817 dev_err(&adapter->pdev->dev,
818 "unified image: firmware validation failed\n");
819 return -EINVAL;
820 }
821
822 return 0;
af19b491
AKS		 823}
824
825static
826struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
827 u32 section, u32 idx_offset)
828{
829 const u8 *unirom = adapter->fw->data;
830 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
831 idx_offset));
832 struct uni_table_desc *tab_desc;
833 __le32 offs;
834
835 tab_desc = qlcnic_get_table_desc(unirom, section);
836
837 if (tab_desc == NULL)
838 return NULL;
839
840 offs = cpu_to_le32(tab_desc->findex) +
841 (cpu_to_le32(tab_desc->entry_size) * idx);
842
843 return (struct uni_data_desc *)&unirom[offs];
844}
845
846static u8 *
847qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
848{
849 u32 offs = QLCNIC_BOOTLD_START;
850
851 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
852 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
853 QLCNIC_UNI_DIR_SECT_BOOTLD,
854 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
855
856 return (u8 *)&adapter->fw->data[offs];
857}
858
859static u8 *
860qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
861{
862 u32 offs = QLCNIC_IMAGE_START;
863
864 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
865 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
866 QLCNIC_UNI_DIR_SECT_FW,
867 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
868
869 return (u8 *)&adapter->fw->data[offs];
870}
871
872static __le32
873qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
874{
875 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
876 return cpu_to_le32((qlcnic_get_data_desc(adapter,
877 QLCNIC_UNI_DIR_SECT_FW,
878 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
879 else
880 return cpu_to_le32(
881 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
882}
883
884static __le32
885qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
886{
887 struct uni_data_desc *fw_data_desc;
888 const struct firmware *fw = adapter->fw;
889 __le32 major, minor, sub;
890 const u8 *ver_str;
891 int i, ret;
892
893 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
894 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
895
896 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
897 QLCNIC_UNI_FIRMWARE_IDX_OFF);
898 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
899 cpu_to_le32(fw_data_desc->size) - 17;
900
901 for (i = 0; i < 12; i++) {
902 if (!strncmp(&ver_str[i], "REV=", 4)) {
903 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
904 &major, &minor, &sub);
905 if (ret != 3)
906 return 0;
907 else
908 return major + (minor << 8) + (sub << 16);
909 }
910 }
911
912 return 0;
913}
914
915static __le32
916qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
917{
918 const struct firmware *fw = adapter->fw;
919 __le32 bios_ver, prd_off = adapter->file_prd_off;
920
921 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
922 return cpu_to_le32(
923 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
924
925 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
926 + QLCNIC_UNI_BIOS_VERSION_OFF));
927
addd5abf 928 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
af19b491
AKS		 929}
930
931int
932qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
933{
af19b491 934 u32 val, version, major, minor, build;
af19b491
AKS		 935
936 if (adapter->need_fw_reset)
937 return 1;
938
d4066833 939 if (qlcnic_check_fw_status(adapter))
af19b491
AKS		 940 return 1;
941
942 /* check if we have got newer or different file firmware */
943 if (adapter->fw) {
944
945 val = qlcnic_get_fw_version(adapter);
946
947 version = QLCNIC_DECODE_VERSION(val);
948
949 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
950 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
951 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
952
953 if (version > QLCNIC_VERSION_CODE(major, minor, build))
954 return 1;
955 }
956
957 return 0;
958}
959
960static const char *fw_name[] = {
961 QLCNIC_UNIFIED_ROMIMAGE_NAME,
962 QLCNIC_FLASH_ROMIMAGE_NAME,
963};
964
965int
966qlcnic_load_firmware(struct qlcnic_adapter *adapter)
967{
968 u64 *ptr64;
969 u32 i, flashaddr, size;
970 const struct firmware *fw = adapter->fw;
971 struct pci_dev *pdev = adapter->pdev;
972
973 dev_info(&pdev->dev, "loading firmware from %s\n",
974 fw_name[adapter->fw_type]);
975
976 if (fw) {
977 __le64 data;
978
979 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
980
981 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
982 flashaddr = QLCNIC_BOOTLD_START;
983
984 for (i = 0; i < size; i++) {
985 data = cpu_to_le64(ptr64[i]);
986
987 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
988 return -EIO;
989
990 flashaddr += 8;
991 }
992
993 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
994
995 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
996 flashaddr = QLCNIC_IMAGE_START;
997
998 for (i = 0; i < size; i++) {
999 data = cpu_to_le64(ptr64[i]);
1000
1001 if (qlcnic_pci_mem_write_2M(adapter,
1002 flashaddr, data))
1003 return -EIO;
1004
1005 flashaddr += 8;
1006 }
0bc92b5b
AKS		 1007
1008 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1009 if (size) {
1010 data = cpu_to_le64(ptr64[i]);
1011
1012 if (qlcnic_pci_mem_write_2M(adapter,
1013 flashaddr, data))
1014 return -EIO;
1015 }
1016
af19b491
AKS		 1017 } else {
1018 u64 data;
1019 u32 hi, lo;
1020
1021 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1022 flashaddr = QLCNIC_BOOTLD_START;
1023
1024 for (i = 0; i < size; i++) {
1025 if (qlcnic_rom_fast_read(adapter,
1026 flashaddr, (int *)&lo) != 0)
1027 return -EIO;
1028 if (qlcnic_rom_fast_read(adapter,
1029 flashaddr + 4, (int *)&hi) != 0)
1030 return -EIO;
1031
1032 data = (((u64)hi << 32) | lo);
1033
1034 if (qlcnic_pci_mem_write_2M(adapter,
1035 flashaddr, data))
1036 return -EIO;
1037
1038 flashaddr += 8;
1039 }
1040 }
1041 msleep(1);
1042
1043 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1044 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1045 return 0;
1046}
1047
1048static int
1049qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1050{
1051 __le32 val;
8f891387 1052 u32 ver, bios, min_size;
af19b491
AKS		 1053 struct pci_dev *pdev = adapter->pdev;
1054 const struct firmware *fw = adapter->fw;
1055 u8 fw_type = adapter->fw_type;
1056
1057 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
b7eff100 1058 if (qlcnic_validate_unified_romimage(adapter))
af19b491
AKS		 1059 return -EINVAL;
1060
1061 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1062 } else {
1063 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1064 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1065 return -EINVAL;
1066
1067 min_size = QLCNIC_FW_MIN_SIZE;
1068 }
1069
1070 if (fw->size < min_size)
1071 return -EINVAL;
1072
1073 val = qlcnic_get_fw_version(adapter);
af19b491
AKS		 1074 ver = QLCNIC_DECODE_VERSION(val);
1075
8f891387 1076 if (ver < QLCNIC_MIN_FW_VERSION) {
af19b491
AKS		 1077 dev_err(&pdev->dev,
1078 "%s: firmware version %d.%d.%d unsupported\n",
1079 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1080 return -EINVAL;
1081 }
1082
1083 val = qlcnic_get_bios_version(adapter);
1084 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1085 if ((__force u32)val != bios) {
1086 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1087 fw_name[fw_type]);
1088 return -EINVAL;
1089 }
1090
1091 /* check if flashed firmware is newer */
1092 if (qlcnic_rom_fast_read(adapter,
1093 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1094 return -EIO;
1095
1096 val = QLCNIC_DECODE_VERSION(val);
1097 if (val > ver) {
1098 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1099 fw_name[fw_type]);
1100 return -EINVAL;
1101 }
1102
1103 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1104 return 0;
1105}
1106
1107static void
1108qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1109{
1110 u8 fw_type;
1111
1112 switch (adapter->fw_type) {
1113 case QLCNIC_UNKNOWN_ROMIMAGE:
1114 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1115 break;
1116
1117 case QLCNIC_UNIFIED_ROMIMAGE:
1118 default:
1119 fw_type = QLCNIC_FLASH_ROMIMAGE;
1120 break;
1121 }
1122
1123 adapter->fw_type = fw_type;
1124}
1125
1126
1127
1128void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1129{
1130 struct pci_dev *pdev = adapter->pdev;
1131 int rc;
1132
1133 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1134
1135next:
1136 qlcnic_get_next_fwtype(adapter);
1137
1138 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1139 adapter->fw = NULL;
1140 } else {
1141 rc = request_firmware(&adapter->fw,
1142 fw_name[adapter->fw_type], &pdev->dev);
1143 if (rc != 0)
1144 goto next;
1145
1146 rc = qlcnic_validate_firmware(adapter);
1147 if (rc != 0) {
1148 release_firmware(adapter->fw);
1149 msleep(1);
1150 goto next;
1151 }
1152 }
1153}
1154
1155
1156void
1157qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1158{
1159 if (adapter->fw)
1160 release_firmware(adapter->fw);
1161 adapter->fw = NULL;
1162}
1163
af19b491
AKS		 1164static void
1165qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1166 struct qlcnic_fw_msg *msg)
1167{
1168 u32 cable_OUI;
1169 u16 cable_len;
1170 u16 link_speed;
1171 u8 link_status, module, duplex, autoneg;
1172 struct net_device *netdev = adapter->netdev;
1173
1174 adapter->has_link_events = 1;
1175
1176 cable_OUI = msg->body[1] & 0xffffffff;
1177 cable_len = (msg->body[1] >> 32) & 0xffff;
1178 link_speed = (msg->body[1] >> 48) & 0xffff;
1179
1180 link_status = msg->body[2] & 0xff;
1181 duplex = (msg->body[2] >> 16) & 0xff;
1182 autoneg = (msg->body[2] >> 24) & 0xff;
1183
1184 module = (msg->body[2] >> 8) & 0xff;
1185 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1186 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1187 "length %d\n", cable_OUI, cable_len);
1188 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1189 dev_info(&netdev->dev, "unsupported cable length %d\n",
1190 cable_len);
1191
1192 qlcnic_advert_link_change(adapter, link_status);
1193
1194 if (duplex == LINKEVENT_FULL_DUPLEX)
1195 adapter->link_duplex = DUPLEX_FULL;
1196 else
1197 adapter->link_duplex = DUPLEX_HALF;
1198
1199 adapter->module_type = module;
1200 adapter->link_autoneg = autoneg;
1201 adapter->link_speed = link_speed;
1202}
1203
1204static void
1205qlcnic_handle_fw_message(int desc_cnt, int index,
1206 struct qlcnic_host_sds_ring *sds_ring)
1207{
1208 struct qlcnic_fw_msg msg;
1209 struct status_desc *desc;
1210 int i = 0, opcode;
1211
1212 while (desc_cnt > 0 && i < 8) {
1213 desc = &sds_ring->desc_head[index];
1214 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1215 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1216
1217 index = get_next_index(index, sds_ring->num_desc);
1218 desc_cnt--;
1219 }
1220
1221 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1222 switch (opcode) {
1223 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1224 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1225 break;
1226 default:
1227 break;
1228 }
1229}
1230
1231static int
1232qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1233 struct qlcnic_host_rds_ring *rds_ring,
1234 struct qlcnic_rx_buffer *buffer)
1235{
1236 struct sk_buff *skb;
1237 dma_addr_t dma;
1238 struct pci_dev *pdev = adapter->pdev;
1239
96659828
AKS		 1240 skb = dev_alloc_skb(rds_ring->skb_size);
1241 if (!skb) {
8bfe8b91 1242 adapter->stats.skb_alloc_failure++;
af19b491 1243 return -ENOMEM;
8bfe8b91 1244 }
af19b491 1245
251a84c9 1246 skb_reserve(skb, 2);
af19b491
AKS		 1247
1248 dma = pci_map_single(pdev, skb->data,
1249 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1250
1251 if (pci_dma_mapping_error(pdev, dma)) {
8ae6df97 1252 adapter->stats.rx_dma_map_error++;
af19b491 1253 dev_kfree_skb_any(skb);
af19b491
AKS		 1254 return -ENOMEM;
1255 }
1256
1257 buffer->skb = skb;
1258 buffer->dma = dma;
af19b491
AKS		 1259
1260 return 0;
1261}
1262
1263static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1264 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1265{
1266 struct qlcnic_rx_buffer *buffer;
1267 struct sk_buff *skb;
1268
1269 buffer = &rds_ring->rx_buf_arr[index];
1270
96659828
AKS		 1271 if (unlikely(buffer->skb == NULL)) {
1272 WARN_ON(1);
1273 return NULL;
1274 }
1275
af19b491
AKS		 1276 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1277 PCI_DMA_FROMDEVICE);
1278
1279 skb = buffer->skb;
af19b491
AKS		 1280
1281 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1282 adapter->stats.csummed++;
1283 skb->ip_summed = CHECKSUM_UNNECESSARY;
1284 } else {
1285 skb->ip_summed = CHECKSUM_NONE;
1286 }
1287
1288 skb->dev = adapter->netdev;
1289
1290 buffer->skb = NULL;
96659828 1291
af19b491
AKS		 1292 return skb;
1293}
1294
1295static struct qlcnic_rx_buffer *
1296qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1297 struct qlcnic_host_sds_ring *sds_ring,
1298 int ring, u64 sts_data0)
1299{
1300 struct net_device *netdev = adapter->netdev;
1301 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1302 struct qlcnic_rx_buffer *buffer;
1303 struct sk_buff *skb;
1304 struct qlcnic_host_rds_ring *rds_ring;
1305 int index, length, cksum, pkt_offset;
1306
1307 if (unlikely(ring >= adapter->max_rds_rings))
1308 return NULL;
1309
1310 rds_ring = &recv_ctx->rds_rings[ring];
1311
1312 index = qlcnic_get_sts_refhandle(sts_data0);
1313 if (unlikely(index >= rds_ring->num_desc))
1314 return NULL;
1315
1316 buffer = &rds_ring->rx_buf_arr[index];
1317
1318 length = qlcnic_get_sts_totallength(sts_data0);
1319 cksum = qlcnic_get_sts_status(sts_data0);
1320 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1321
1322 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1323 if (!skb)
1324 return buffer;
1325
1326 if (length > rds_ring->skb_size)
1327 skb_put(skb, rds_ring->skb_size);
1328 else
1329 skb_put(skb, length);
1330
1331 if (pkt_offset)
1332 skb_pull(skb, pkt_offset);
1333
1334 skb->truesize = skb->len + sizeof(struct sk_buff);
1335 skb->protocol = eth_type_trans(skb, netdev);
1336
1337 napi_gro_receive(&sds_ring->napi, skb);
1338
1339 adapter->stats.rx_pkts++;
1340 adapter->stats.rxbytes += length;
1341
1342 return buffer;
1343}
1344
1345#define QLC_TCP_HDR_SIZE 20
1346#define QLC_TCP_TS_OPTION_SIZE 12
1347#define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1348
1349static struct qlcnic_rx_buffer *
1350qlcnic_process_lro(struct qlcnic_adapter *adapter,
1351 struct qlcnic_host_sds_ring *sds_ring,
1352 int ring, u64 sts_data0, u64 sts_data1)
1353{
1354 struct net_device *netdev = adapter->netdev;
1355 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1356 struct qlcnic_rx_buffer *buffer;
1357 struct sk_buff *skb;
1358 struct qlcnic_host_rds_ring *rds_ring;
1359 struct iphdr *iph;
1360 struct tcphdr *th;
1361 bool push, timestamp;
1362 int l2_hdr_offset, l4_hdr_offset;
1363 int index;
1364 u16 lro_length, length, data_offset;
1365 u32 seq_number;
1366
1367 if (unlikely(ring > adapter->max_rds_rings))
1368 return NULL;
1369
1370 rds_ring = &recv_ctx->rds_rings[ring];
1371
1372 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1373 if (unlikely(index > rds_ring->num_desc))
1374 return NULL;
1375
1376 buffer = &rds_ring->rx_buf_arr[index];
1377
1378 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1379 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1380 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1381 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1382 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1383 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1384
1385 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1386 if (!skb)
1387 return buffer;
1388
1389 if (timestamp)
1390 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1391 else
1392 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1393
1394 skb_put(skb, lro_length + data_offset);
1395
1396 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1397
1398 skb_pull(skb, l2_hdr_offset);
1399 skb->protocol = eth_type_trans(skb, netdev);
1400
1401 iph = (struct iphdr *)skb->data;
1402 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1403
1404 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1405 iph->tot_len = htons(length);
1406 iph->check = 0;
1407 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1408 th->psh = push;
1409 th->seq = htonl(seq_number);
1410
1411 length = skb->len;
1412
1413 netif_receive_skb(skb);
1414
1415 adapter->stats.lro_pkts++;
8bfe8b91 1416 adapter->stats.lrobytes += length;
af19b491
AKS		 1417
1418 return buffer;
1419}
1420
1421int
1422qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1423{
1424 struct qlcnic_adapter *adapter = sds_ring->adapter;
1425 struct list_head *cur;
1426 struct status_desc *desc;
1427 struct qlcnic_rx_buffer *rxbuf;
1428 u64 sts_data0, sts_data1;
1429
1430 int count = 0;
1431 int opcode, ring, desc_cnt;
1432 u32 consumer = sds_ring->consumer;
1433
1434 while (count < max) {
1435 desc = &sds_ring->desc_head[consumer];
1436 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1437
1438 if (!(sts_data0 & STATUS_OWNER_HOST))
1439 break;
1440
1441 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1442 opcode = qlcnic_get_sts_opcode(sts_data0);
1443
1444 switch (opcode) {
1445 case QLCNIC_RXPKT_DESC:
1446 case QLCNIC_OLD_RXPKT_DESC:
1447 case QLCNIC_SYN_OFFLOAD:
1448 ring = qlcnic_get_sts_type(sts_data0);
1449 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1450 ring, sts_data0);
1451 break;
1452 case QLCNIC_LRO_DESC:
1453 ring = qlcnic_get_lro_sts_type(sts_data0);
1454 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1455 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1456 ring, sts_data0, sts_data1);
1457 break;
1458 case QLCNIC_RESPONSE_DESC:
1459 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1460 default:
1461 goto skip;
1462 }
1463
1464 WARN_ON(desc_cnt > 1);
1465
96659828 1466 if (likely(rxbuf))
af19b491 1467 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
8ae6df97
AKS		 1468 else
1469 adapter->stats.null_rxbuf++;
af19b491
AKS		 1470
1471skip:
1472 for (; desc_cnt > 0; desc_cnt--) {
1473 desc = &sds_ring->desc_head[consumer];
1474 desc->status_desc_data[0] =
1475 cpu_to_le64(STATUS_OWNER_PHANTOM);
1476 consumer = get_next_index(consumer, sds_ring->num_desc);
1477 }
1478 count++;
1479 }
1480
1481 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1482 struct qlcnic_host_rds_ring *rds_ring =
1483 &adapter->recv_ctx.rds_rings[ring];
1484
1485 if (!list_empty(&sds_ring->free_list[ring])) {
1486 list_for_each(cur, &sds_ring->free_list[ring]) {
1487 rxbuf = list_entry(cur,
1488 struct qlcnic_rx_buffer, list);
1489 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1490 }
1491 spin_lock(&rds_ring->lock);
1492 list_splice_tail_init(&sds_ring->free_list[ring],
1493 &rds_ring->free_list);
1494 spin_unlock(&rds_ring->lock);
1495 }
1496
1497 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1498 }
1499
1500 if (count) {
1501 sds_ring->consumer = consumer;
1502 writel(consumer, sds_ring->crb_sts_consumer);
1503 }
1504
1505 return count;
1506}
1507
1508void
1509qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1510 struct qlcnic_host_rds_ring *rds_ring)
1511{
1512 struct rcv_desc *pdesc;
1513 struct qlcnic_rx_buffer *buffer;
1514 int producer, count = 0;
1515 struct list_head *head;
1516
1517 producer = rds_ring->producer;
1518
af19b491
AKS		 1519 head = &rds_ring->free_list;
1520 while (!list_empty(head)) {
1521
1522 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1523
1524 if (!buffer->skb) {
1525 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1526 break;
1527 }
1528
1529 count++;
1530 list_del(&buffer->list);
1531
1532 /* make a rcv descriptor */
1533 pdesc = &rds_ring->desc_head[producer];
1534 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1535 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1536 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1537
1538 producer = get_next_index(producer, rds_ring->num_desc);
1539 }
af19b491
AKS		 1540
1541 if (count) {
1542 rds_ring->producer = producer;
1543 writel((producer-1) & (rds_ring->num_desc-1),
1544 rds_ring->crb_rcv_producer);
1545 }
1546}
1547
1548static void
1549qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1550 struct qlcnic_host_rds_ring *rds_ring)
1551{
1552 struct rcv_desc *pdesc;
1553 struct qlcnic_rx_buffer *buffer;
1554 int producer, count = 0;
1555 struct list_head *head;
1556
af19b491
AKS		 1557 if (!spin_trylock(&rds_ring->lock))
1558 return;
1559
ed6f1353
AKS		 1560 producer = rds_ring->producer;
1561
af19b491
AKS		 1562 head = &rds_ring->free_list;
1563 while (!list_empty(head)) {
1564
1565 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1566
1567 if (!buffer->skb) {
1568 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1569 break;
1570 }
1571
1572 count++;
1573 list_del(&buffer->list);
1574
1575 /* make a rcv descriptor */
1576 pdesc = &rds_ring->desc_head[producer];
1577 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1578 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1579 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1580
1581 producer = get_next_index(producer, rds_ring->num_desc);
1582 }
1583
1584 if (count) {
1585 rds_ring->producer = producer;
1586 writel((producer - 1) & (rds_ring->num_desc - 1),
1587 rds_ring->crb_rcv_producer);
1588 }
1589 spin_unlock(&rds_ring->lock);
1590}
1591
cdaff185
AKS		 1592static struct qlcnic_rx_buffer *
1593qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1594 struct qlcnic_host_sds_ring *sds_ring,
1595 int ring, u64 sts_data0)
1596{
1597 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1598 struct qlcnic_rx_buffer *buffer;
1599 struct sk_buff *skb;
1600 struct qlcnic_host_rds_ring *rds_ring;
1601 int index, length, cksum, pkt_offset;
1602
1603 if (unlikely(ring >= adapter->max_rds_rings))
1604 return NULL;
1605
1606 rds_ring = &recv_ctx->rds_rings[ring];
1607
1608 index = qlcnic_get_sts_refhandle(sts_data0);
1609 if (unlikely(index >= rds_ring->num_desc))
1610 return NULL;
1611
1612 buffer = &rds_ring->rx_buf_arr[index];
1613
1614 length = qlcnic_get_sts_totallength(sts_data0);
1615 cksum = qlcnic_get_sts_status(sts_data0);
1616 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1617
1618 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1619 if (!skb)
1620 return buffer;
1621
1622 skb_put(skb, rds_ring->skb_size);
1623
1624 if (pkt_offset)
1625 skb_pull(skb, pkt_offset);
1626
1627 skb->truesize = skb->len + sizeof(struct sk_buff);
1628
1629 if (!qlcnic_check_loopback_buff(skb->data))
1630 adapter->diag_cnt++;
1631
1632 dev_kfree_skb_any(skb);
8bfe8b91
SC		 1633 adapter->stats.rx_pkts++;
1634 adapter->stats.rxbytes += length;
cdaff185
AKS		 1635
1636 return buffer;
1637}
1638
1639void
1640qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1641{
1642 struct qlcnic_adapter *adapter = sds_ring->adapter;
1643 struct status_desc *desc;
1644 struct qlcnic_rx_buffer *rxbuf;
1645 u64 sts_data0;
1646
1647 int opcode, ring, desc_cnt;
1648 u32 consumer = sds_ring->consumer;
1649
1650 desc = &sds_ring->desc_head[consumer];
1651 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1652
1653 if (!(sts_data0 & STATUS_OWNER_HOST))
1654 return;
1655
1656 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1657 opcode = qlcnic_get_sts_opcode(sts_data0);
1658
1659 ring = qlcnic_get_sts_type(sts_data0);
1660 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1661 ring, sts_data0);
1662
1663 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1664 consumer = get_next_index(consumer, sds_ring->num_desc);
1665
1666 sds_ring->consumer = consumer;
1667 writel(consumer, sds_ring->crb_sts_consumer);
1668}
2e9d722d
AC		 1669
1670void
1671qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1672 u8 alt_mac, u8 *mac)
1673{
1674 u32 mac_low, mac_high;
1675 int i;
1676
1677 mac_low = QLCRD32(adapter, off1);
1678 mac_high = QLCRD32(adapter, off2);
1679
1680 if (alt_mac) {
1681 mac_low |= (mac_low >> 16) | (mac_high << 16);
1682 mac_high >>= 16;
1683 }
1684
1685 for (i = 0; i < 2; i++)
1686 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1687 for (i = 2; i < 6; i++)
1688 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1689}
Linux 6.x block layer and io_uring tree(s)