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stmmac: Fix another build warning.
[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>
8cf61f89 28#include <linux/if_vlan.h>
af19b491
AKS		 29#include "qlcnic.h"
30
31struct crb_addr_pair {
32 u32 addr;
33 u32 data;
34};
35
36#define QLCNIC_MAX_CRB_XFORM 60
37static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
38
39#define crb_addr_transform(name) \
40 (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
41 QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
42
43#define QLCNIC_ADDR_ERROR (0xffffffff)
44
45static void
46qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
47 struct qlcnic_host_rds_ring *rds_ring);
48
49static void crb_addr_transform_setup(void)
50{
51 crb_addr_transform(XDMA);
52 crb_addr_transform(TIMR);
53 crb_addr_transform(SRE);
54 crb_addr_transform(SQN3);
55 crb_addr_transform(SQN2);
56 crb_addr_transform(SQN1);
57 crb_addr_transform(SQN0);
58 crb_addr_transform(SQS3);
59 crb_addr_transform(SQS2);
60 crb_addr_transform(SQS1);
61 crb_addr_transform(SQS0);
62 crb_addr_transform(RPMX7);
63 crb_addr_transform(RPMX6);
64 crb_addr_transform(RPMX5);
65 crb_addr_transform(RPMX4);
66 crb_addr_transform(RPMX3);
67 crb_addr_transform(RPMX2);
68 crb_addr_transform(RPMX1);
69 crb_addr_transform(RPMX0);
70 crb_addr_transform(ROMUSB);
71 crb_addr_transform(SN);
72 crb_addr_transform(QMN);
73 crb_addr_transform(QMS);
74 crb_addr_transform(PGNI);
75 crb_addr_transform(PGND);
76 crb_addr_transform(PGN3);
77 crb_addr_transform(PGN2);
78 crb_addr_transform(PGN1);
79 crb_addr_transform(PGN0);
80 crb_addr_transform(PGSI);
81 crb_addr_transform(PGSD);
82 crb_addr_transform(PGS3);
83 crb_addr_transform(PGS2);
84 crb_addr_transform(PGS1);
85 crb_addr_transform(PGS0);
86 crb_addr_transform(PS);
87 crb_addr_transform(PH);
88 crb_addr_transform(NIU);
89 crb_addr_transform(I2Q);
90 crb_addr_transform(EG);
91 crb_addr_transform(MN);
92 crb_addr_transform(MS);
93 crb_addr_transform(CAS2);
94 crb_addr_transform(CAS1);
95 crb_addr_transform(CAS0);
96 crb_addr_transform(CAM);
97 crb_addr_transform(C2C1);
98 crb_addr_transform(C2C0);
99 crb_addr_transform(SMB);
100 crb_addr_transform(OCM0);
101 crb_addr_transform(I2C0);
102}
103
104void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
105{
106 struct qlcnic_recv_context *recv_ctx;
107 struct qlcnic_host_rds_ring *rds_ring;
108 struct qlcnic_rx_buffer *rx_buf;
109 int i, ring;
110
111 recv_ctx = &adapter->recv_ctx;
112 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
113 rds_ring = &recv_ctx->rds_rings[ring];
114 for (i = 0; i < rds_ring->num_desc; ++i) {
115 rx_buf = &(rds_ring->rx_buf_arr[i]);
96659828 116 if (rx_buf->skb == NULL)
af19b491 117 continue;
96659828 118
af19b491
AKS		 119 pci_unmap_single(adapter->pdev,
120 rx_buf->dma,
121 rds_ring->dma_size,
122 PCI_DMA_FROMDEVICE);
96659828
AKS		 123
124 dev_kfree_skb_any(rx_buf->skb);
af19b491
AKS		 125 }
126 }
127}
128
8a15ad1f
AKS		 129void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
130{
131 struct qlcnic_recv_context *recv_ctx;
132 struct qlcnic_host_rds_ring *rds_ring;
133 struct qlcnic_rx_buffer *rx_buf;
134 int i, ring;
135
136 recv_ctx = &adapter->recv_ctx;
137 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
138 rds_ring = &recv_ctx->rds_rings[ring];
139
8a15ad1f
AKS		 140 INIT_LIST_HEAD(&rds_ring->free_list);
141
142 rx_buf = rds_ring->rx_buf_arr;
143 for (i = 0; i < rds_ring->num_desc; i++) {
144 list_add_tail(&rx_buf->list,
145 &rds_ring->free_list);
146 rx_buf++;
147 }
8a15ad1f
AKS		 148 }
149}
150
af19b491
AKS		 151void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
152{
153 struct qlcnic_cmd_buffer *cmd_buf;
154 struct qlcnic_skb_frag *buffrag;
155 int i, j;
156 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
157
158 cmd_buf = tx_ring->cmd_buf_arr;
159 for (i = 0; i < tx_ring->num_desc; i++) {
160 buffrag = cmd_buf->frag_array;
161 if (buffrag->dma) {
162 pci_unmap_single(adapter->pdev, buffrag->dma,
163 buffrag->length, PCI_DMA_TODEVICE);
164 buffrag->dma = 0ULL;
165 }
166 for (j = 0; j < cmd_buf->frag_count; j++) {
167 buffrag++;
168 if (buffrag->dma) {
169 pci_unmap_page(adapter->pdev, buffrag->dma,
170 buffrag->length,
171 PCI_DMA_TODEVICE);
172 buffrag->dma = 0ULL;
173 }
174 }
175 if (cmd_buf->skb) {
176 dev_kfree_skb_any(cmd_buf->skb);
177 cmd_buf->skb = NULL;
178 }
179 cmd_buf++;
180 }
181}
182
183void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
184{
185 struct qlcnic_recv_context *recv_ctx;
186 struct qlcnic_host_rds_ring *rds_ring;
187 struct qlcnic_host_tx_ring *tx_ring;
188 int ring;
189
190 recv_ctx = &adapter->recv_ctx;
191
192 if (recv_ctx->rds_rings == NULL)
193 goto skip_rds;
194
195 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
196 rds_ring = &recv_ctx->rds_rings[ring];
197 vfree(rds_ring->rx_buf_arr);
198 rds_ring->rx_buf_arr = NULL;
199 }
200 kfree(recv_ctx->rds_rings);
201
202skip_rds:
203 if (adapter->tx_ring == NULL)
204 return;
205
206 tx_ring = adapter->tx_ring;
207 vfree(tx_ring->cmd_buf_arr);
ef71ff83 208 tx_ring->cmd_buf_arr = NULL;
af19b491 209 kfree(adapter->tx_ring);
ef71ff83 210 adapter->tx_ring = NULL;
af19b491
AKS		 211}
212
213int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
214{
215 struct qlcnic_recv_context *recv_ctx;
216 struct qlcnic_host_rds_ring *rds_ring;
217 struct qlcnic_host_sds_ring *sds_ring;
218 struct qlcnic_host_tx_ring *tx_ring;
219 struct qlcnic_rx_buffer *rx_buf;
220 int ring, i, size;
221
222 struct qlcnic_cmd_buffer *cmd_buf_arr;
223 struct net_device *netdev = adapter->netdev;
224
225 size = sizeof(struct qlcnic_host_tx_ring);
226 tx_ring = kzalloc(size, GFP_KERNEL);
227 if (tx_ring == NULL) {
228 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
229 return -ENOMEM;
230 }
231 adapter->tx_ring = tx_ring;
232
233 tx_ring->num_desc = adapter->num_txd;
234 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
235
236 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
237 if (cmd_buf_arr == NULL) {
238 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
aadd8184 239 goto err_out;
af19b491
AKS		 240 }
241 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
242 tx_ring->cmd_buf_arr = cmd_buf_arr;
243
244 recv_ctx = &adapter->recv_ctx;
245
246 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
247 rds_ring = kzalloc(size, GFP_KERNEL);
248 if (rds_ring == NULL) {
249 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
aadd8184 250 goto err_out;
af19b491
AKS		 251 }
252 recv_ctx->rds_rings = rds_ring;
253
254 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
255 rds_ring = &recv_ctx->rds_rings[ring];
256 switch (ring) {
257 case RCV_RING_NORMAL:
258 rds_ring->num_desc = adapter->num_rxd;
251a84c9
AKS		 259 rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
260 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
af19b491
AKS		 261 break;
262
263 case RCV_RING_JUMBO:
264 rds_ring->num_desc = adapter->num_jumbo_rxd;
265 rds_ring->dma_size =
266 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
267
268 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
269 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
270
271 rds_ring->skb_size =
272 rds_ring->dma_size + NET_IP_ALIGN;
273 break;
af19b491
AKS		 274 }
275 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
276 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
277 if (rds_ring->rx_buf_arr == NULL) {
278 dev_err(&netdev->dev, "Failed to allocate "
279 "rx buffer ring %d\n", ring);
280 goto err_out;
281 }
282 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
283 INIT_LIST_HEAD(&rds_ring->free_list);
284 /*
285 * Now go through all of them, set reference handles
286 * and put them in the queues.
287 */
288 rx_buf = rds_ring->rx_buf_arr;
289 for (i = 0; i < rds_ring->num_desc; i++) {
290 list_add_tail(&rx_buf->list,
291 &rds_ring->free_list);
292 rx_buf->ref_handle = i;
af19b491
AKS		 293 rx_buf++;
294 }
295 spin_lock_init(&rds_ring->lock);
296 }
297
298 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
299 sds_ring = &recv_ctx->sds_rings[ring];
300 sds_ring->irq = adapter->msix_entries[ring].vector;
301 sds_ring->adapter = adapter;
302 sds_ring->num_desc = adapter->num_rxd;
303
304 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
305 INIT_LIST_HEAD(&sds_ring->free_list[i]);
306 }
307
308 return 0;
309
310err_out:
311 qlcnic_free_sw_resources(adapter);
312 return -ENOMEM;
313}
314
315/*
316 * Utility to translate from internal Phantom CRB address
317 * to external PCI CRB address.
318 */
319static u32 qlcnic_decode_crb_addr(u32 addr)
320{
321 int i;
322 u32 base_addr, offset, pci_base;
323
324 crb_addr_transform_setup();
325
326 pci_base = QLCNIC_ADDR_ERROR;
327 base_addr = addr & 0xfff00000;
328 offset = addr & 0x000fffff;
329
330 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
331 if (crb_addr_xform[i] == base_addr) {
332 pci_base = i << 20;
333 break;
334 }
335 }
336 if (pci_base == QLCNIC_ADDR_ERROR)
337 return pci_base;
338 else
339 return pci_base + offset;
340}
341
342#define QLCNIC_MAX_ROM_WAIT_USEC 100
343
344static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
345{
346 long timeout = 0;
347 long done = 0;
348
349 cond_resched();
350
351 while (done == 0) {
352 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
353 done &= 2;
354 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
355 dev_err(&adapter->pdev->dev,
356 "Timeout reached waiting for rom done");
357 return -EIO;
358 }
359 udelay(1);
360 }
361 return 0;
362}
363
364static int do_rom_fast_read(struct qlcnic_adapter *adapter,
365 int addr, int *valp)
366{
367 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
368 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
369 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
370 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
371 if (qlcnic_wait_rom_done(adapter)) {
372 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
373 return -EIO;
374 }
375 /* reset abyte_cnt and dummy_byte_cnt */
376 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
377 udelay(10);
378 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
379
380 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
381 return 0;
382}
383
384static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
385 u8 *bytes, size_t size)
386{
387 int addridx;
388 int ret = 0;
389
390 for (addridx = addr; addridx < (addr + size); addridx += 4) {
391 int v;
392 ret = do_rom_fast_read(adapter, addridx, &v);
393 if (ret != 0)
394 break;
395 *(__le32 *)bytes = cpu_to_le32(v);
396 bytes += 4;
397 }
398
399 return ret;
400}
401
402int
403qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
404 u8 *bytes, size_t size)
405{
406 int ret;
407
408 ret = qlcnic_rom_lock(adapter);
409 if (ret < 0)
410 return ret;
411
412 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
413
414 qlcnic_rom_unlock(adapter);
415 return ret;
416}
417
418int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
419{
420 int ret;
421
422 if (qlcnic_rom_lock(adapter) != 0)
423 return -EIO;
424
425 ret = do_rom_fast_read(adapter, addr, valp);
426 qlcnic_rom_unlock(adapter);
427 return ret;
428}
429
430int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
431{
432 int addr, val;
433 int i, n, init_delay;
434 struct crb_addr_pair *buf;
435 unsigned offset;
436 u32 off;
437 struct pci_dev *pdev = adapter->pdev;
438
d4066833
SC		 439 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
440 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
441
af19b491 442 qlcnic_rom_lock(adapter);
469c221f 443 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
af19b491
AKS		 444 qlcnic_rom_unlock(adapter);
445
d4066833 446 /* Init HW CRB block */
af19b491
AKS		 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
d4066833 527 /* Initialize protocol process engine */
af19b491 528 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
af19b491
AKS		 529 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
530 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
af19b491
AKS		 531 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
532 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
533 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
534 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
535 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
536 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
537 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
538 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
d4066833
SC		 539 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
540 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
541 msleep(1);
542 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
543 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
af19b491
AKS		 544 return 0;
545}
546
d4066833
SC		 547int
548qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
549{
0866d96d 550 u32 heartbit, cmdpeg_state, ret = -EIO;
d4066833
SC		 551 int retries = QLCNIC_HEARTBEAT_RETRY_COUNT;
552
553 adapter->heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
554 do {
555 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
556 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
557 if (heartbit != adapter->heartbit) {
0866d96d
AC		 558 cmdpeg_state = QLCRD32(adapter, CRB_CMDPEG_STATE);
559 /* Ensure peg states are initialized */
560 if (cmdpeg_state == PHAN_INITIALIZE_COMPLETE ||
561 cmdpeg_state == PHAN_INITIALIZE_ACK) {
562 /* Complete firmware handshake */
563 QLCWR32(adapter, CRB_CMDPEG_STATE,
564 PHAN_INITIALIZE_ACK);
565 ret = QLCNIC_RCODE_SUCCESS;
566 break;
567 }
d4066833
SC		 568 }
569 } while (--retries);
570
571 return ret;
572}
573
b3a24649 574int
aa5e18c0
SC		 575qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
576
577 int timeo;
b3a24649
SC		 578 u32 val;
579
45918e2f
AC		 580 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
581 val = QLC_DEV_GET_DRV(val, adapter->portnum);
582 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
583 dev_err(&adapter->pdev->dev,
584 "Not an Ethernet NIC func=%u\n", val);
585 return -EIO;
b3a24649 586 }
45918e2f 587 adapter->physical_port = (val >> 2);
aa5e18c0 588 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
251b036a 589 timeo = QLCNIC_INIT_TIMEOUT_SECS;
aa5e18c0
SC		 590
591 adapter->dev_init_timeo = timeo;
592
593 if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
251b036a 594 timeo = QLCNIC_RESET_TIMEOUT_SECS;
aa5e18c0
SC		 595
596 adapter->reset_ack_timeo = timeo;
b3a24649
SC		 597
598 return 0;
aa5e18c0
SC		 599}
600
8f891387 601int
602qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
603{
604 u32 ver = -1, min_ver;
605
606 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
607
608 ver = QLCNIC_DECODE_VERSION(ver);
609 min_ver = QLCNIC_MIN_FW_VERSION;
610
611 if (ver < min_ver) {
612 dev_err(&adapter->pdev->dev,
613 "firmware version %d.%d.%d unsupported."
614 "Min supported version %d.%d.%d\n",
615 _major(ver), _minor(ver), _build(ver),
616 _major(min_ver), _minor(min_ver), _build(min_ver));
617 return -EINVAL;
618 }
619
620 return 0;
621}
622
af19b491
AKS		 623static int
624qlcnic_has_mn(struct qlcnic_adapter *adapter)
625{
8f891387 626 u32 capability;
af19b491
AKS		 627 capability = 0;
628
251a84c9
AKS		 629 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
630 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
631 return 1;
af19b491 632
af19b491
AKS		 633 return 0;
634}
635
636static
637struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
638{
639 u32 i;
640 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
641 __le32 entries = cpu_to_le32(directory->num_entries);
642
643 for (i = 0; i < entries; i++) {
644
645 __le32 offs = cpu_to_le32(directory->findex) +
646 (i * cpu_to_le32(directory->entry_size));
647 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
648
649 if (tab_type == section)
650 return (struct uni_table_desc *) &unirom[offs];
651 }
652
653 return NULL;
654}
655
b7eff100
SC		 656#define FILEHEADER_SIZE (14 * 4)
657
af19b491 658static int
b7eff100 659qlcnic_validate_header(struct qlcnic_adapter *adapter)
af19b491 660{
af19b491 661 const u8 *unirom = adapter->fw->data;
b7eff100
SC		 662 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
663 __le32 fw_file_size = adapter->fw->size;
af19b491 664 __le32 entries;
b7eff100
SC		 665 __le32 entry_size;
666 __le32 tab_size;
667
668 if (fw_file_size < FILEHEADER_SIZE)
669 return -EINVAL;
670
671 entries = cpu_to_le32(directory->num_entries);
672 entry_size = cpu_to_le32(directory->entry_size);
673 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
674
675 if (fw_file_size < tab_size)
676 return -EINVAL;
677
678 return 0;
679}
680
681static int
682qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
683{
684 struct uni_table_desc *tab_desc;
685 struct uni_data_desc *descr;
686 const u8 *unirom = adapter->fw->data;
687 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
688 QLCNIC_UNI_BOOTLD_IDX_OFF));
689 __le32 offs;
690 __le32 tab_size;
691 __le32 data_size;
692
693 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
694
695 if (!tab_desc)
696 return -EINVAL;
697
698 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 699 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 700
701 if (adapter->fw->size < tab_size)
702 return -EINVAL;
703
704 offs = cpu_to_le32(tab_desc->findex) +
705 (cpu_to_le32(tab_desc->entry_size) * (idx));
706 descr = (struct uni_data_desc *)&unirom[offs];
707
22dfaa86 708 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 709
710 if (adapter->fw->size < data_size)
711 return -EINVAL;
712
713 return 0;
714}
715
716static int
717qlcnic_validate_fw(struct qlcnic_adapter *adapter)
718{
719 struct uni_table_desc *tab_desc;
720 struct uni_data_desc *descr;
721 const u8 *unirom = adapter->fw->data;
722 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
723 QLCNIC_UNI_FIRMWARE_IDX_OFF));
724 __le32 offs;
725 __le32 tab_size;
726 __le32 data_size;
727
728 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
729
730 if (!tab_desc)
731 return -EINVAL;
732
733 tab_size = cpu_to_le32(tab_desc->findex) +
22dfaa86 734 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
b7eff100
SC		 735
736 if (adapter->fw->size < tab_size)
737 return -EINVAL;
738
739 offs = cpu_to_le32(tab_desc->findex) +
740 (cpu_to_le32(tab_desc->entry_size) * (idx));
741 descr = (struct uni_data_desc *)&unirom[offs];
22dfaa86 742 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
b7eff100
SC		 743
744 if (adapter->fw->size < data_size)
745 return -EINVAL;
746
747 return 0;
748}
749
750static int
751qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
752{
753 struct uni_table_desc *ptab_descr;
754 const u8 *unirom = adapter->fw->data;
af19b491 755 int mn_present = qlcnic_has_mn(adapter);
b7eff100
SC		 756 __le32 entries;
757 __le32 entry_size;
758 __le32 tab_size;
759 u32 i;
af19b491
AKS		 760
761 ptab_descr = qlcnic_get_table_desc(unirom,
762 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
b7eff100
SC		 763 if (!ptab_descr)
764 return -EINVAL;
af19b491
AKS		 765
766 entries = cpu_to_le32(ptab_descr->num_entries);
b7eff100
SC		 767 entry_size = cpu_to_le32(ptab_descr->entry_size);
768 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
769
770 if (adapter->fw->size < tab_size)
771 return -EINVAL;
772
af19b491
AKS		 773nomn:
774 for (i = 0; i < entries; i++) {
775
776 __le32 flags, file_chiprev, offs;
777 u8 chiprev = adapter->ahw.revision_id;
778 u32 flagbit;
779
780 offs = cpu_to_le32(ptab_descr->findex) +
781 (i * cpu_to_le32(ptab_descr->entry_size));
782 flags = cpu_to_le32(*((int *)&unirom[offs] +
783 QLCNIC_UNI_FLAGS_OFF));
784 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
785 QLCNIC_UNI_CHIP_REV_OFF));
786
787 flagbit = mn_present ? 1 : 2;
788
789 if ((chiprev == file_chiprev) &&
790 ((1ULL << flagbit) & flags)) {
791 adapter->file_prd_off = offs;
792 return 0;
793 }
794 }
795 if (mn_present) {
796 mn_present = 0;
797 goto nomn;
798 }
b7eff100
SC		 799 return -EINVAL;
800}
801
802static int
803qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
804{
805 if (qlcnic_validate_header(adapter)) {
806 dev_err(&adapter->pdev->dev,
807 "unified image: header validation failed\n");
808 return -EINVAL;
809 }
810
811 if (qlcnic_validate_product_offs(adapter)) {
812 dev_err(&adapter->pdev->dev,
813 "unified image: product validation failed\n");
814 return -EINVAL;
815 }
816
817 if (qlcnic_validate_bootld(adapter)) {
818 dev_err(&adapter->pdev->dev,
819 "unified image: bootld validation failed\n");
820 return -EINVAL;
821 }
822
823 if (qlcnic_validate_fw(adapter)) {
824 dev_err(&adapter->pdev->dev,
825 "unified image: firmware validation failed\n");
826 return -EINVAL;
827 }
828
829 return 0;
af19b491
AKS		 830}
831
832static
833struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
834 u32 section, u32 idx_offset)
835{
836 const u8 *unirom = adapter->fw->data;
837 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
838 idx_offset));
839 struct uni_table_desc *tab_desc;
840 __le32 offs;
841
842 tab_desc = qlcnic_get_table_desc(unirom, section);
843
844 if (tab_desc == NULL)
845 return NULL;
846
847 offs = cpu_to_le32(tab_desc->findex) +
848 (cpu_to_le32(tab_desc->entry_size) * idx);
849
850 return (struct uni_data_desc *)&unirom[offs];
851}
852
853static u8 *
854qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
855{
856 u32 offs = QLCNIC_BOOTLD_START;
857
858 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
859 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
860 QLCNIC_UNI_DIR_SECT_BOOTLD,
861 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
862
863 return (u8 *)&adapter->fw->data[offs];
864}
865
866static u8 *
867qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
868{
869 u32 offs = QLCNIC_IMAGE_START;
870
871 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
872 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
873 QLCNIC_UNI_DIR_SECT_FW,
874 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
875
876 return (u8 *)&adapter->fw->data[offs];
877}
878
879static __le32
880qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
881{
882 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
883 return cpu_to_le32((qlcnic_get_data_desc(adapter,
884 QLCNIC_UNI_DIR_SECT_FW,
885 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
886 else
887 return cpu_to_le32(
888 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
889}
890
891static __le32
892qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
893{
894 struct uni_data_desc *fw_data_desc;
895 const struct firmware *fw = adapter->fw;
896 __le32 major, minor, sub;
897 const u8 *ver_str;
898 int i, ret;
899
900 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
901 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
902
903 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
904 QLCNIC_UNI_FIRMWARE_IDX_OFF);
905 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
906 cpu_to_le32(fw_data_desc->size) - 17;
907
908 for (i = 0; i < 12; i++) {
909 if (!strncmp(&ver_str[i], "REV=", 4)) {
910 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
911 &major, &minor, &sub);
912 if (ret != 3)
913 return 0;
914 else
915 return major + (minor << 8) + (sub << 16);
916 }
917 }
918
919 return 0;
920}
921
922static __le32
923qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
924{
925 const struct firmware *fw = adapter->fw;
926 __le32 bios_ver, prd_off = adapter->file_prd_off;
927
928 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
929 return cpu_to_le32(
930 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
931
932 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
933 + QLCNIC_UNI_BIOS_VERSION_OFF));
934
addd5abf 935 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
af19b491
AKS		 936}
937
091754a1
SC		 938static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
939{
940 if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
941 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
942
943 qlcnic_pcie_sem_unlock(adapter, 2);
944}
945
af19b491
AKS		 946int
947qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
948{
af19b491 949 u32 val, version, major, minor, build;
af19b491 950
091754a1
SC		 951 if (qlcnic_check_fw_status(adapter)) {
952 qlcnic_rom_lock_recovery(adapter);
af19b491 953 return 1;
091754a1 954 }
af19b491 955
091754a1 956 if (adapter->need_fw_reset)
af19b491
AKS		 957 return 1;
958
959 /* check if we have got newer or different file firmware */
960 if (adapter->fw) {
961
962 val = qlcnic_get_fw_version(adapter);
963
964 version = QLCNIC_DECODE_VERSION(val);
965
966 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
967 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
968 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
969
970 if (version > QLCNIC_VERSION_CODE(major, minor, build))
971 return 1;
972 }
973
974 return 0;
975}
976
977static const char *fw_name[] = {
978 QLCNIC_UNIFIED_ROMIMAGE_NAME,
979 QLCNIC_FLASH_ROMIMAGE_NAME,
980};
981
982int
983qlcnic_load_firmware(struct qlcnic_adapter *adapter)
984{
985 u64 *ptr64;
986 u32 i, flashaddr, size;
987 const struct firmware *fw = adapter->fw;
988 struct pci_dev *pdev = adapter->pdev;
989
990 dev_info(&pdev->dev, "loading firmware from %s\n",
991 fw_name[adapter->fw_type]);
992
993 if (fw) {
994 __le64 data;
995
996 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
997
998 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
999 flashaddr = QLCNIC_BOOTLD_START;
1000
1001 for (i = 0; i < size; i++) {
1002 data = cpu_to_le64(ptr64[i]);
1003
1004 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1005 return -EIO;
1006
1007 flashaddr += 8;
1008 }
1009
1010 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1011
1012 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1013 flashaddr = QLCNIC_IMAGE_START;
1014
1015 for (i = 0; i < size; i++) {
1016 data = cpu_to_le64(ptr64[i]);
1017
1018 if (qlcnic_pci_mem_write_2M(adapter,
1019 flashaddr, data))
1020 return -EIO;
1021
1022 flashaddr += 8;
1023 }
0bc92b5b
AKS		 1024
1025 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1026 if (size) {
1027 data = cpu_to_le64(ptr64[i]);
1028
1029 if (qlcnic_pci_mem_write_2M(adapter,
1030 flashaddr, data))
1031 return -EIO;
1032 }
1033
af19b491
AKS		 1034 } else {
1035 u64 data;
1036 u32 hi, lo;
1037
1038 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1039 flashaddr = QLCNIC_BOOTLD_START;
1040
1041 for (i = 0; i < size; i++) {
1042 if (qlcnic_rom_fast_read(adapter,
1043 flashaddr, (int *)&lo) != 0)
1044 return -EIO;
1045 if (qlcnic_rom_fast_read(adapter,
1046 flashaddr + 4, (int *)&hi) != 0)
1047 return -EIO;
1048
1049 data = (((u64)hi << 32) | lo);
1050
1051 if (qlcnic_pci_mem_write_2M(adapter,
1052 flashaddr, data))
1053 return -EIO;
1054
1055 flashaddr += 8;
1056 }
1057 }
1058 msleep(1);
1059
1060 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1061 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1062 return 0;
1063}
1064
1065static int
1066qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1067{
1068 __le32 val;
8f891387 1069 u32 ver, bios, min_size;
af19b491
AKS		 1070 struct pci_dev *pdev = adapter->pdev;
1071 const struct firmware *fw = adapter->fw;
1072 u8 fw_type = adapter->fw_type;
1073
1074 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
b7eff100 1075 if (qlcnic_validate_unified_romimage(adapter))
af19b491
AKS		 1076 return -EINVAL;
1077
1078 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1079 } else {
1080 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1081 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1082 return -EINVAL;
1083
1084 min_size = QLCNIC_FW_MIN_SIZE;
1085 }
1086
1087 if (fw->size < min_size)
1088 return -EINVAL;
1089
1090 val = qlcnic_get_fw_version(adapter);
af19b491
AKS		 1091 ver = QLCNIC_DECODE_VERSION(val);
1092
8f891387 1093 if (ver < QLCNIC_MIN_FW_VERSION) {
af19b491
AKS		 1094 dev_err(&pdev->dev,
1095 "%s: firmware version %d.%d.%d unsupported\n",
1096 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1097 return -EINVAL;
1098 }
1099
1100 val = qlcnic_get_bios_version(adapter);
1101 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1102 if ((__force u32)val != bios) {
1103 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1104 fw_name[fw_type]);
1105 return -EINVAL;
1106 }
1107
1108 /* check if flashed firmware is newer */
1109 if (qlcnic_rom_fast_read(adapter,
1110 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1111 return -EIO;
1112
1113 val = QLCNIC_DECODE_VERSION(val);
1114 if (val > ver) {
1115 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1116 fw_name[fw_type]);
1117 return -EINVAL;
1118 }
1119
1120 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1121 return 0;
1122}
1123
1124static void
1125qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1126{
1127 u8 fw_type;
1128
1129 switch (adapter->fw_type) {
1130 case QLCNIC_UNKNOWN_ROMIMAGE:
1131 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1132 break;
1133
1134 case QLCNIC_UNIFIED_ROMIMAGE:
1135 default:
1136 fw_type = QLCNIC_FLASH_ROMIMAGE;
1137 break;
1138 }
1139
1140 adapter->fw_type = fw_type;
1141}
1142
1143
1144
1145void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1146{
1147 struct pci_dev *pdev = adapter->pdev;
1148 int rc;
1149
1150 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1151
1152next:
1153 qlcnic_get_next_fwtype(adapter);
1154
1155 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1156 adapter->fw = NULL;
1157 } else {
1158 rc = request_firmware(&adapter->fw,
1159 fw_name[adapter->fw_type], &pdev->dev);
1160 if (rc != 0)
1161 goto next;
1162
1163 rc = qlcnic_validate_firmware(adapter);
1164 if (rc != 0) {
1165 release_firmware(adapter->fw);
1166 msleep(1);
1167 goto next;
1168 }
1169 }
1170}
1171
1172
1173void
1174qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1175{
1176 if (adapter->fw)
1177 release_firmware(adapter->fw);
1178 adapter->fw = NULL;
1179}
1180
af19b491
AKS		 1181static void
1182qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1183 struct qlcnic_fw_msg *msg)
1184{
1185 u32 cable_OUI;
1186 u16 cable_len;
1187 u16 link_speed;
1188 u8 link_status, module, duplex, autoneg;
1189 struct net_device *netdev = adapter->netdev;
1190
1191 adapter->has_link_events = 1;
1192
1193 cable_OUI = msg->body[1] & 0xffffffff;
1194 cable_len = (msg->body[1] >> 32) & 0xffff;
1195 link_speed = (msg->body[1] >> 48) & 0xffff;
1196
1197 link_status = msg->body[2] & 0xff;
1198 duplex = (msg->body[2] >> 16) & 0xff;
1199 autoneg = (msg->body[2] >> 24) & 0xff;
1200
1201 module = (msg->body[2] >> 8) & 0xff;
1202 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1203 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1204 "length %d\n", cable_OUI, cable_len);
1205 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1206 dev_info(&netdev->dev, "unsupported cable length %d\n",
1207 cable_len);
1208
1209 qlcnic_advert_link_change(adapter, link_status);
1210
1211 if (duplex == LINKEVENT_FULL_DUPLEX)
1212 adapter->link_duplex = DUPLEX_FULL;
1213 else
1214 adapter->link_duplex = DUPLEX_HALF;
1215
1216 adapter->module_type = module;
1217 adapter->link_autoneg = autoneg;
1218 adapter->link_speed = link_speed;
1219}
1220
1221static void
1222qlcnic_handle_fw_message(int desc_cnt, int index,
1223 struct qlcnic_host_sds_ring *sds_ring)
1224{
1225 struct qlcnic_fw_msg msg;
1226 struct status_desc *desc;
1227 int i = 0, opcode;
1228
1229 while (desc_cnt > 0 && i < 8) {
1230 desc = &sds_ring->desc_head[index];
1231 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1232 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1233
1234 index = get_next_index(index, sds_ring->num_desc);
1235 desc_cnt--;
1236 }
1237
1238 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1239 switch (opcode) {
1240 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1241 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1242 break;
1243 default:
1244 break;
1245 }
1246}
1247
1248static int
1249qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1250 struct qlcnic_host_rds_ring *rds_ring,
1251 struct qlcnic_rx_buffer *buffer)
1252{
1253 struct sk_buff *skb;
1254 dma_addr_t dma;
1255 struct pci_dev *pdev = adapter->pdev;
1256
96659828
AKS		 1257 skb = dev_alloc_skb(rds_ring->skb_size);
1258 if (!skb) {
8bfe8b91 1259 adapter->stats.skb_alloc_failure++;
af19b491 1260 return -ENOMEM;
8bfe8b91 1261 }
af19b491 1262
251a84c9 1263 skb_reserve(skb, 2);
af19b491
AKS		 1264
1265 dma = pci_map_single(pdev, skb->data,
1266 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1267
1268 if (pci_dma_mapping_error(pdev, dma)) {
8ae6df97 1269 adapter->stats.rx_dma_map_error++;
af19b491 1270 dev_kfree_skb_any(skb);
af19b491
AKS		 1271 return -ENOMEM;
1272 }
1273
1274 buffer->skb = skb;
1275 buffer->dma = dma;
af19b491
AKS		 1276
1277 return 0;
1278}
1279
1280static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1281 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1282{
1283 struct qlcnic_rx_buffer *buffer;
1284 struct sk_buff *skb;
1285
1286 buffer = &rds_ring->rx_buf_arr[index];
1287
96659828
AKS		 1288 if (unlikely(buffer->skb == NULL)) {
1289 WARN_ON(1);
1290 return NULL;
1291 }
1292
af19b491
AKS		 1293 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1294 PCI_DMA_FROMDEVICE);
1295
1296 skb = buffer->skb;
af19b491
AKS		 1297
1298 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1299 adapter->stats.csummed++;
1300 skb->ip_summed = CHECKSUM_UNNECESSARY;
1301 } else {
1302 skb->ip_summed = CHECKSUM_NONE;
1303 }
1304
1305 skb->dev = adapter->netdev;
1306
1307 buffer->skb = NULL;
96659828 1308
af19b491
AKS		 1309 return skb;
1310}
1311
8cf61f89
AKS		 1312static int
1313qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb)
1314{
1315 u16 vlan_tag;
1316 struct ethhdr *eth_hdr;
1317
1318 if (!__vlan_get_tag(skb, &vlan_tag)) {
1319 if (vlan_tag == adapter->pvid) {
1320 /* strip the tag from the packet and send it up */
1321 eth_hdr = (struct ethhdr *) skb->data;
1322 memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1323 skb_pull(skb, VLAN_HLEN);
1324 return 0;
1325 }
1326 }
1327 if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1328 return 0;
1329
1330 return -EIO;
1331}
1332
af19b491
AKS		 1333static struct qlcnic_rx_buffer *
1334qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1335 struct qlcnic_host_sds_ring *sds_ring,
1336 int ring, u64 sts_data0)
1337{
1338 struct net_device *netdev = adapter->netdev;
1339 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1340 struct qlcnic_rx_buffer *buffer;
1341 struct sk_buff *skb;
1342 struct qlcnic_host_rds_ring *rds_ring;
1343 int index, length, cksum, pkt_offset;
1344
1345 if (unlikely(ring >= adapter->max_rds_rings))
1346 return NULL;
1347
1348 rds_ring = &recv_ctx->rds_rings[ring];
1349
1350 index = qlcnic_get_sts_refhandle(sts_data0);
1351 if (unlikely(index >= rds_ring->num_desc))
1352 return NULL;
1353
1354 buffer = &rds_ring->rx_buf_arr[index];
1355
1356 length = qlcnic_get_sts_totallength(sts_data0);
1357 cksum = qlcnic_get_sts_status(sts_data0);
1358 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1359
1360 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1361 if (!skb)
1362 return buffer;
1363
1364 if (length > rds_ring->skb_size)
1365 skb_put(skb, rds_ring->skb_size);
1366 else
1367 skb_put(skb, length);
1368
1369 if (pkt_offset)
1370 skb_pull(skb, pkt_offset);
1371
1372 skb->truesize = skb->len + sizeof(struct sk_buff);
8cf61f89
AKS		 1373
1374 if (unlikely(adapter->pvid)) {
1375 if (qlcnic_check_rx_tagging(adapter, skb)) {
1376 adapter->stats.rxdropped++;
1377 dev_kfree_skb_any(skb);
1378 return buffer;
1379 }
1380 }
1381
af19b491
AKS		 1382 skb->protocol = eth_type_trans(skb, netdev);
1383
1384 napi_gro_receive(&sds_ring->napi, skb);
1385
1386 adapter->stats.rx_pkts++;
1387 adapter->stats.rxbytes += length;
1388
1389 return buffer;
1390}
1391
1392#define QLC_TCP_HDR_SIZE 20
1393#define QLC_TCP_TS_OPTION_SIZE 12
1394#define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1395
1396static struct qlcnic_rx_buffer *
1397qlcnic_process_lro(struct qlcnic_adapter *adapter,
1398 struct qlcnic_host_sds_ring *sds_ring,
1399 int ring, u64 sts_data0, u64 sts_data1)
1400{
1401 struct net_device *netdev = adapter->netdev;
1402 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1403 struct qlcnic_rx_buffer *buffer;
1404 struct sk_buff *skb;
1405 struct qlcnic_host_rds_ring *rds_ring;
1406 struct iphdr *iph;
1407 struct tcphdr *th;
1408 bool push, timestamp;
1409 int l2_hdr_offset, l4_hdr_offset;
1410 int index;
1411 u16 lro_length, length, data_offset;
1412 u32 seq_number;
1413
1414 if (unlikely(ring > adapter->max_rds_rings))
1415 return NULL;
1416
1417 rds_ring = &recv_ctx->rds_rings[ring];
1418
1419 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1420 if (unlikely(index > rds_ring->num_desc))
1421 return NULL;
1422
1423 buffer = &rds_ring->rx_buf_arr[index];
1424
1425 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1426 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1427 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1428 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1429 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1430 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1431
1432 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1433 if (!skb)
1434 return buffer;
1435
1436 if (timestamp)
1437 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1438 else
1439 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1440
1441 skb_put(skb, lro_length + data_offset);
1442
1443 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1444
1445 skb_pull(skb, l2_hdr_offset);
8cf61f89
AKS		 1446
1447 if (unlikely(adapter->pvid)) {
1448 if (qlcnic_check_rx_tagging(adapter, skb)) {
1449 adapter->stats.rxdropped++;
1450 dev_kfree_skb_any(skb);
1451 return buffer;
1452 }
1453 }
af19b491
AKS		 1454 skb->protocol = eth_type_trans(skb, netdev);
1455
1456 iph = (struct iphdr *)skb->data;
1457 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1458
1459 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1460 iph->tot_len = htons(length);
1461 iph->check = 0;
1462 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1463 th->psh = push;
1464 th->seq = htonl(seq_number);
1465
1466 length = skb->len;
1467
1468 netif_receive_skb(skb);
1469
1470 adapter->stats.lro_pkts++;
8bfe8b91 1471 adapter->stats.lrobytes += length;
af19b491
AKS		 1472
1473 return buffer;
1474}
1475
1476int
1477qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1478{
1479 struct qlcnic_adapter *adapter = sds_ring->adapter;
1480 struct list_head *cur;
1481 struct status_desc *desc;
1482 struct qlcnic_rx_buffer *rxbuf;
1483 u64 sts_data0, sts_data1;
1484
1485 int count = 0;
1486 int opcode, ring, desc_cnt;
1487 u32 consumer = sds_ring->consumer;
1488
1489 while (count < max) {
1490 desc = &sds_ring->desc_head[consumer];
1491 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1492
1493 if (!(sts_data0 & STATUS_OWNER_HOST))
1494 break;
1495
1496 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1497 opcode = qlcnic_get_sts_opcode(sts_data0);
1498
1499 switch (opcode) {
1500 case QLCNIC_RXPKT_DESC:
1501 case QLCNIC_OLD_RXPKT_DESC:
1502 case QLCNIC_SYN_OFFLOAD:
1503 ring = qlcnic_get_sts_type(sts_data0);
1504 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1505 ring, sts_data0);
1506 break;
1507 case QLCNIC_LRO_DESC:
1508 ring = qlcnic_get_lro_sts_type(sts_data0);
1509 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1510 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1511 ring, sts_data0, sts_data1);
1512 break;
1513 case QLCNIC_RESPONSE_DESC:
1514 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1515 default:
1516 goto skip;
1517 }
1518
1519 WARN_ON(desc_cnt > 1);
1520
96659828 1521 if (likely(rxbuf))
af19b491 1522 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
8ae6df97
AKS		 1523 else
1524 adapter->stats.null_rxbuf++;
af19b491
AKS		 1525
1526skip:
1527 for (; desc_cnt > 0; desc_cnt--) {
1528 desc = &sds_ring->desc_head[consumer];
1529 desc->status_desc_data[0] =
1530 cpu_to_le64(STATUS_OWNER_PHANTOM);
1531 consumer = get_next_index(consumer, sds_ring->num_desc);
1532 }
1533 count++;
1534 }
1535
1536 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1537 struct qlcnic_host_rds_ring *rds_ring =
1538 &adapter->recv_ctx.rds_rings[ring];
1539
1540 if (!list_empty(&sds_ring->free_list[ring])) {
1541 list_for_each(cur, &sds_ring->free_list[ring]) {
1542 rxbuf = list_entry(cur,
1543 struct qlcnic_rx_buffer, list);
1544 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1545 }
1546 spin_lock(&rds_ring->lock);
1547 list_splice_tail_init(&sds_ring->free_list[ring],
1548 &rds_ring->free_list);
1549 spin_unlock(&rds_ring->lock);
1550 }
1551
1552 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1553 }
1554
1555 if (count) {
1556 sds_ring->consumer = consumer;
1557 writel(consumer, sds_ring->crb_sts_consumer);
1558 }
1559
1560 return count;
1561}
1562
1563void
1564qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1565 struct qlcnic_host_rds_ring *rds_ring)
1566{
1567 struct rcv_desc *pdesc;
1568 struct qlcnic_rx_buffer *buffer;
1569 int producer, count = 0;
1570 struct list_head *head;
1571
1572 producer = rds_ring->producer;
1573
af19b491
AKS		 1574 head = &rds_ring->free_list;
1575 while (!list_empty(head)) {
1576
1577 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1578
1579 if (!buffer->skb) {
1580 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1581 break;
1582 }
1583
1584 count++;
1585 list_del(&buffer->list);
1586
1587 /* make a rcv descriptor */
1588 pdesc = &rds_ring->desc_head[producer];
1589 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1590 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1591 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1592
1593 producer = get_next_index(producer, rds_ring->num_desc);
1594 }
af19b491
AKS		 1595
1596 if (count) {
1597 rds_ring->producer = producer;
1598 writel((producer-1) & (rds_ring->num_desc-1),
1599 rds_ring->crb_rcv_producer);
1600 }
1601}
1602
1603static void
1604qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1605 struct qlcnic_host_rds_ring *rds_ring)
1606{
1607 struct rcv_desc *pdesc;
1608 struct qlcnic_rx_buffer *buffer;
1609 int producer, count = 0;
1610 struct list_head *head;
1611
af19b491
AKS		 1612 if (!spin_trylock(&rds_ring->lock))
1613 return;
1614
ed6f1353
AKS		 1615 producer = rds_ring->producer;
1616
af19b491
AKS		 1617 head = &rds_ring->free_list;
1618 while (!list_empty(head)) {
1619
1620 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1621
1622 if (!buffer->skb) {
1623 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1624 break;
1625 }
1626
1627 count++;
1628 list_del(&buffer->list);
1629
1630 /* make a rcv descriptor */
1631 pdesc = &rds_ring->desc_head[producer];
1632 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1633 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1634 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1635
1636 producer = get_next_index(producer, rds_ring->num_desc);
1637 }
1638
1639 if (count) {
1640 rds_ring->producer = producer;
1641 writel((producer - 1) & (rds_ring->num_desc - 1),
1642 rds_ring->crb_rcv_producer);
1643 }
1644 spin_unlock(&rds_ring->lock);
1645}
1646
cdaff185
AKS		 1647static struct qlcnic_rx_buffer *
1648qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1649 struct qlcnic_host_sds_ring *sds_ring,
1650 int ring, u64 sts_data0)
1651{
1652 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1653 struct qlcnic_rx_buffer *buffer;
1654 struct sk_buff *skb;
1655 struct qlcnic_host_rds_ring *rds_ring;
1656 int index, length, cksum, pkt_offset;
1657
1658 if (unlikely(ring >= adapter->max_rds_rings))
1659 return NULL;
1660
1661 rds_ring = &recv_ctx->rds_rings[ring];
1662
1663 index = qlcnic_get_sts_refhandle(sts_data0);
1664 if (unlikely(index >= rds_ring->num_desc))
1665 return NULL;
1666
1667 buffer = &rds_ring->rx_buf_arr[index];
1668
1669 length = qlcnic_get_sts_totallength(sts_data0);
1670 cksum = qlcnic_get_sts_status(sts_data0);
1671 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1672
1673 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1674 if (!skb)
1675 return buffer;
1676
1677 skb_put(skb, rds_ring->skb_size);
1678
1679 if (pkt_offset)
1680 skb_pull(skb, pkt_offset);
1681
1682 skb->truesize = skb->len + sizeof(struct sk_buff);
1683
1684 if (!qlcnic_check_loopback_buff(skb->data))
1685 adapter->diag_cnt++;
1686
1687 dev_kfree_skb_any(skb);
8bfe8b91
SC		 1688 adapter->stats.rx_pkts++;
1689 adapter->stats.rxbytes += length;
cdaff185
AKS		 1690
1691 return buffer;
1692}
1693
1694void
1695qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1696{
1697 struct qlcnic_adapter *adapter = sds_ring->adapter;
1698 struct status_desc *desc;
1699 struct qlcnic_rx_buffer *rxbuf;
1700 u64 sts_data0;
1701
1702 int opcode, ring, desc_cnt;
1703 u32 consumer = sds_ring->consumer;
1704
1705 desc = &sds_ring->desc_head[consumer];
1706 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1707
1708 if (!(sts_data0 & STATUS_OWNER_HOST))
1709 return;
1710
1711 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1712 opcode = qlcnic_get_sts_opcode(sts_data0);
1713
1714 ring = qlcnic_get_sts_type(sts_data0);
1715 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1716 ring, sts_data0);
1717
1718 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1719 consumer = get_next_index(consumer, sds_ring->num_desc);
1720
1721 sds_ring->consumer = consumer;
1722 writel(consumer, sds_ring->crb_sts_consumer);
1723}
2e9d722d
AC		 1724
1725void
1726qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1727 u8 alt_mac, u8 *mac)
1728{
1729 u32 mac_low, mac_high;
1730 int i;
1731
1732 mac_low = QLCRD32(adapter, off1);
1733 mac_high = QLCRD32(adapter, off2);
1734
1735 if (alt_mac) {
1736 mac_low |= (mac_low >> 16) | (mac_high << 16);
1737 mac_high >>= 16;
1738 }
1739
1740 for (i = 0; i < 2; i++)
1741 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1742 for (i = 2; i < 6; i++)
1743 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1744}
Linux 6.x block layer and io_uring tree(s)