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qlcnic: validate unified fw image
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / qlcnic / qlcnic_init.c
blob21a6e9f3dac53aa1a094a27b0a5b4f2db4d57581
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>
27 #include "qlcnic.h"
28
29 struct crb_addr_pair {
30 u32 addr;
31 u32 data;
32 };
33
34 #define QLCNIC_MAX_CRB_XFORM 60
35 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
36
37 #define crb_addr_transform(name) \
38 (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
39 QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
40
41 #define QLCNIC_ADDR_ERROR (0xffffffff)
42
43 static void
44 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
45 struct qlcnic_host_rds_ring *rds_ring);
46
47 static void crb_addr_transform_setup(void)
48 {
49 crb_addr_transform(XDMA);
50 crb_addr_transform(TIMR);
51 crb_addr_transform(SRE);
52 crb_addr_transform(SQN3);
53 crb_addr_transform(SQN2);
54 crb_addr_transform(SQN1);
55 crb_addr_transform(SQN0);
56 crb_addr_transform(SQS3);
57 crb_addr_transform(SQS2);
58 crb_addr_transform(SQS1);
59 crb_addr_transform(SQS0);
60 crb_addr_transform(RPMX7);
61 crb_addr_transform(RPMX6);
62 crb_addr_transform(RPMX5);
63 crb_addr_transform(RPMX4);
64 crb_addr_transform(RPMX3);
65 crb_addr_transform(RPMX2);
66 crb_addr_transform(RPMX1);
67 crb_addr_transform(RPMX0);
68 crb_addr_transform(ROMUSB);
69 crb_addr_transform(SN);
70 crb_addr_transform(QMN);
71 crb_addr_transform(QMS);
72 crb_addr_transform(PGNI);
73 crb_addr_transform(PGND);
74 crb_addr_transform(PGN3);
75 crb_addr_transform(PGN2);
76 crb_addr_transform(PGN1);
77 crb_addr_transform(PGN0);
78 crb_addr_transform(PGSI);
79 crb_addr_transform(PGSD);
80 crb_addr_transform(PGS3);
81 crb_addr_transform(PGS2);
82 crb_addr_transform(PGS1);
83 crb_addr_transform(PGS0);
84 crb_addr_transform(PS);
85 crb_addr_transform(PH);
86 crb_addr_transform(NIU);
87 crb_addr_transform(I2Q);
88 crb_addr_transform(EG);
89 crb_addr_transform(MN);
90 crb_addr_transform(MS);
91 crb_addr_transform(CAS2);
92 crb_addr_transform(CAS1);
93 crb_addr_transform(CAS0);
94 crb_addr_transform(CAM);
95 crb_addr_transform(C2C1);
96 crb_addr_transform(C2C0);
97 crb_addr_transform(SMB);
98 crb_addr_transform(OCM0);
99 crb_addr_transform(I2C0);
100 }
101
102 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
103 {
104 struct qlcnic_recv_context *recv_ctx;
105 struct qlcnic_host_rds_ring *rds_ring;
106 struct qlcnic_rx_buffer *rx_buf;
107 int i, ring;
108
109 recv_ctx = &adapter->recv_ctx;
110 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
111 rds_ring = &recv_ctx->rds_rings[ring];
112 for (i = 0; i < rds_ring->num_desc; ++i) {
113 rx_buf = &(rds_ring->rx_buf_arr[i]);
114 if (rx_buf->state == QLCNIC_BUFFER_FREE)
115 continue;
116 pci_unmap_single(adapter->pdev,
117 rx_buf->dma,
118 rds_ring->dma_size,
119 PCI_DMA_FROMDEVICE);
120 if (rx_buf->skb != NULL)
121 dev_kfree_skb_any(rx_buf->skb);
122 }
123 }
124 }
125
126 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
127 {
128 struct qlcnic_cmd_buffer *cmd_buf;
129 struct qlcnic_skb_frag *buffrag;
130 int i, j;
131 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
132
133 cmd_buf = tx_ring->cmd_buf_arr;
134 for (i = 0; i < tx_ring->num_desc; i++) {
135 buffrag = cmd_buf->frag_array;
136 if (buffrag->dma) {
137 pci_unmap_single(adapter->pdev, buffrag->dma,
138 buffrag->length, PCI_DMA_TODEVICE);
139 buffrag->dma = 0ULL;
140 }
141 for (j = 0; j < cmd_buf->frag_count; j++) {
142 buffrag++;
143 if (buffrag->dma) {
144 pci_unmap_page(adapter->pdev, buffrag->dma,
145 buffrag->length,
146 PCI_DMA_TODEVICE);
147 buffrag->dma = 0ULL;
148 }
149 }
150 if (cmd_buf->skb) {
151 dev_kfree_skb_any(cmd_buf->skb);
152 cmd_buf->skb = NULL;
153 }
154 cmd_buf++;
155 }
156 }
157
158 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
159 {
160 struct qlcnic_recv_context *recv_ctx;
161 struct qlcnic_host_rds_ring *rds_ring;
162 struct qlcnic_host_tx_ring *tx_ring;
163 int ring;
164
165 recv_ctx = &adapter->recv_ctx;
166
167 if (recv_ctx->rds_rings == NULL)
168 goto skip_rds;
169
170 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
171 rds_ring = &recv_ctx->rds_rings[ring];
172 vfree(rds_ring->rx_buf_arr);
173 rds_ring->rx_buf_arr = NULL;
174 }
175 kfree(recv_ctx->rds_rings);
176
177 skip_rds:
178 if (adapter->tx_ring == NULL)
179 return;
180
181 tx_ring = adapter->tx_ring;
182 vfree(tx_ring->cmd_buf_arr);
183 kfree(adapter->tx_ring);
184 }
185
186 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
187 {
188 struct qlcnic_recv_context *recv_ctx;
189 struct qlcnic_host_rds_ring *rds_ring;
190 struct qlcnic_host_sds_ring *sds_ring;
191 struct qlcnic_host_tx_ring *tx_ring;
192 struct qlcnic_rx_buffer *rx_buf;
193 int ring, i, size;
194
195 struct qlcnic_cmd_buffer *cmd_buf_arr;
196 struct net_device *netdev = adapter->netdev;
197
198 size = sizeof(struct qlcnic_host_tx_ring);
199 tx_ring = kzalloc(size, GFP_KERNEL);
200 if (tx_ring == NULL) {
201 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
202 return -ENOMEM;
203 }
204 adapter->tx_ring = tx_ring;
205
206 tx_ring->num_desc = adapter->num_txd;
207 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
208
209 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
210 if (cmd_buf_arr == NULL) {
211 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
212 return -ENOMEM;
213 }
214 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
215 tx_ring->cmd_buf_arr = cmd_buf_arr;
216
217 recv_ctx = &adapter->recv_ctx;
218
219 size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
220 rds_ring = kzalloc(size, GFP_KERNEL);
221 if (rds_ring == NULL) {
222 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
223 return -ENOMEM;
224 }
225 recv_ctx->rds_rings = rds_ring;
226
227 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
228 rds_ring = &recv_ctx->rds_rings[ring];
229 switch (ring) {
230 case RCV_RING_NORMAL:
231 rds_ring->num_desc = adapter->num_rxd;
232 if (adapter->ahw.cut_through) {
233 rds_ring->dma_size =
234 QLCNIC_CT_DEFAULT_RX_BUF_LEN;
235 rds_ring->skb_size =
236 QLCNIC_CT_DEFAULT_RX_BUF_LEN;
237 } else {
238 rds_ring->dma_size =
239 QLCNIC_P3_RX_BUF_MAX_LEN;
240 rds_ring->skb_size =
241 rds_ring->dma_size + NET_IP_ALIGN;
242 }
243 break;
244
245 case RCV_RING_JUMBO:
246 rds_ring->num_desc = adapter->num_jumbo_rxd;
247 rds_ring->dma_size =
248 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
249
250 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
251 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
252
253 rds_ring->skb_size =
254 rds_ring->dma_size + NET_IP_ALIGN;
255 break;
256
257 case RCV_RING_LRO:
258 rds_ring->num_desc = adapter->num_lro_rxd;
259 rds_ring->dma_size = QLCNIC_RX_LRO_BUFFER_LENGTH;
260 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
261 break;
262
263 }
264 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
265 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
266 if (rds_ring->rx_buf_arr == NULL) {
267 dev_err(&netdev->dev, "Failed to allocate "
268 "rx buffer ring %d\n", ring);
269 goto err_out;
270 }
271 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
272 INIT_LIST_HEAD(&rds_ring->free_list);
273 /*
274 * Now go through all of them, set reference handles
275 * and put them in the queues.
276 */
277 rx_buf = rds_ring->rx_buf_arr;
278 for (i = 0; i < rds_ring->num_desc; i++) {
279 list_add_tail(&rx_buf->list,
280 &rds_ring->free_list);
281 rx_buf->ref_handle = i;
282 rx_buf->state = QLCNIC_BUFFER_FREE;
283 rx_buf++;
284 }
285 spin_lock_init(&rds_ring->lock);
286 }
287
288 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
289 sds_ring = &recv_ctx->sds_rings[ring];
290 sds_ring->irq = adapter->msix_entries[ring].vector;
291 sds_ring->adapter = adapter;
292 sds_ring->num_desc = adapter->num_rxd;
293
294 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
295 INIT_LIST_HEAD(&sds_ring->free_list[i]);
296 }
297
298 return 0;
299
300 err_out:
301 qlcnic_free_sw_resources(adapter);
302 return -ENOMEM;
303 }
304
305 /*
306 * Utility to translate from internal Phantom CRB address
307 * to external PCI CRB address.
308 */
309 static u32 qlcnic_decode_crb_addr(u32 addr)
310 {
311 int i;
312 u32 base_addr, offset, pci_base;
313
314 crb_addr_transform_setup();
315
316 pci_base = QLCNIC_ADDR_ERROR;
317 base_addr = addr & 0xfff00000;
318 offset = addr & 0x000fffff;
319
320 for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
321 if (crb_addr_xform[i] == base_addr) {
322 pci_base = i << 20;
323 break;
324 }
325 }
326 if (pci_base == QLCNIC_ADDR_ERROR)
327 return pci_base;
328 else
329 return pci_base + offset;
330 }
331
332 #define QLCNIC_MAX_ROM_WAIT_USEC 100
333
334 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
335 {
336 long timeout = 0;
337 long done = 0;
338
339 cond_resched();
340
341 while (done == 0) {
342 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
343 done &= 2;
344 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
345 dev_err(&adapter->pdev->dev,
346 "Timeout reached waiting for rom done");
347 return -EIO;
348 }
349 udelay(1);
350 }
351 return 0;
352 }
353
354 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
355 int addr, int *valp)
356 {
357 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
358 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
359 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
360 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
361 if (qlcnic_wait_rom_done(adapter)) {
362 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
363 return -EIO;
364 }
365 /* reset abyte_cnt and dummy_byte_cnt */
366 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
367 udelay(10);
368 QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
369
370 *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
371 return 0;
372 }
373
374 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
375 u8 *bytes, size_t size)
376 {
377 int addridx;
378 int ret = 0;
379
380 for (addridx = addr; addridx < (addr + size); addridx += 4) {
381 int v;
382 ret = do_rom_fast_read(adapter, addridx, &v);
383 if (ret != 0)
384 break;
385 *(__le32 *)bytes = cpu_to_le32(v);
386 bytes += 4;
387 }
388
389 return ret;
390 }
391
392 int
393 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
394 u8 *bytes, size_t size)
395 {
396 int ret;
397
398 ret = qlcnic_rom_lock(adapter);
399 if (ret < 0)
400 return ret;
401
402 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
403
404 qlcnic_rom_unlock(adapter);
405 return ret;
406 }
407
408 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
409 {
410 int ret;
411
412 if (qlcnic_rom_lock(adapter) != 0)
413 return -EIO;
414
415 ret = do_rom_fast_read(adapter, addr, valp);
416 qlcnic_rom_unlock(adapter);
417 return ret;
418 }
419
420 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
421 {
422 int addr, val;
423 int i, n, init_delay;
424 struct crb_addr_pair *buf;
425 unsigned offset;
426 u32 off;
427 struct pci_dev *pdev = adapter->pdev;
428
429 /* resetall */
430 qlcnic_rom_lock(adapter);
431 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xffffffff);
432 qlcnic_rom_unlock(adapter);
433
434 if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
435 qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
436 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
437 return -EIO;
438 }
439 offset = n & 0xffffU;
440 n = (n >> 16) & 0xffffU;
441
442 if (n >= 1024) {
443 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
444 return -EIO;
445 }
446
447 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
448 if (buf == NULL) {
449 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
450 return -ENOMEM;
451 }
452
453 for (i = 0; i < n; i++) {
454 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
455 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
456 kfree(buf);
457 return -EIO;
458 }
459
460 buf[i].addr = addr;
461 buf[i].data = val;
462 }
463
464 for (i = 0; i < n; i++) {
465
466 off = qlcnic_decode_crb_addr(buf[i].addr);
467 if (off == QLCNIC_ADDR_ERROR) {
468 dev_err(&pdev->dev, "CRB init value out of range %x\n",
469 buf[i].addr);
470 continue;
471 }
472 off += QLCNIC_PCI_CRBSPACE;
473
474 if (off & 1)
475 continue;
476
477 /* skipping cold reboot MAGIC */
478 if (off == QLCNIC_CAM_RAM(0x1fc))
479 continue;
480 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
481 continue;
482 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
483 continue;
484 if (off == (ROMUSB_GLB + 0xa8))
485 continue;
486 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
487 continue;
488 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
489 continue;
490 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
491 continue;
492 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
493 continue;
494 /* skip the function enable register */
495 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
496 continue;
497 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
498 continue;
499 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
500 continue;
501
502 init_delay = 1;
503 /* After writing this register, HW needs time for CRB */
504 /* to quiet down (else crb_window returns 0xffffffff) */
505 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
506 init_delay = 1000;
507
508 QLCWR32(adapter, off, buf[i].data);
509
510 msleep(init_delay);
511 }
512 kfree(buf);
513
514 /* p2dn replyCount */
515 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
516 /* disable_peg_cache 0 & 1*/
517 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
518 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
519
520 /* peg_clr_all */
521 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
522 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
523 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
524 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
525 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
526 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
527 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
528 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
529 return 0;
530 }
531
532 static int
533 qlcnic_has_mn(struct qlcnic_adapter *adapter)
534 {
535 u32 capability, flashed_ver;
536 capability = 0;
537
538 qlcnic_rom_fast_read(adapter,
539 QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver);
540 flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver);
541
542 if (flashed_ver >= QLCNIC_VERSION_CODE(4, 0, 220)) {
543
544 capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
545 if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
546 return 1;
547 }
548 return 0;
549 }
550
551 static
552 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
553 {
554 u32 i;
555 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
556 __le32 entries = cpu_to_le32(directory->num_entries);
557
558 for (i = 0; i < entries; i++) {
559
560 __le32 offs = cpu_to_le32(directory->findex) +
561 (i * cpu_to_le32(directory->entry_size));
562 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
563
564 if (tab_type == section)
565 return (struct uni_table_desc *) &unirom[offs];
566 }
567
568 return NULL;
569 }
570
571 #define FILEHEADER_SIZE (14 * 4)
572
573 static int
574 qlcnic_validate_header(struct qlcnic_adapter *adapter)
575 {
576 const u8 *unirom = adapter->fw->data;
577 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
578 __le32 fw_file_size = adapter->fw->size;
579 __le32 entries;
580 __le32 entry_size;
581 __le32 tab_size;
582
583 if (fw_file_size < FILEHEADER_SIZE)
584 return -EINVAL;
585
586 entries = cpu_to_le32(directory->num_entries);
587 entry_size = cpu_to_le32(directory->entry_size);
588 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
589
590 if (fw_file_size < tab_size)
591 return -EINVAL;
592
593 return 0;
594 }
595
596 static int
597 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
598 {
599 struct uni_table_desc *tab_desc;
600 struct uni_data_desc *descr;
601 const u8 *unirom = adapter->fw->data;
602 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
603 QLCNIC_UNI_BOOTLD_IDX_OFF));
604 __le32 offs;
605 __le32 tab_size;
606 __le32 data_size;
607
608 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
609
610 if (!tab_desc)
611 return -EINVAL;
612
613 tab_size = cpu_to_le32(tab_desc->findex) +
614 (cpu_to_le32(tab_desc->entry_size * (idx + 1)));
615
616 if (adapter->fw->size < tab_size)
617 return -EINVAL;
618
619 offs = cpu_to_le32(tab_desc->findex) +
620 (cpu_to_le32(tab_desc->entry_size) * (idx));
621 descr = (struct uni_data_desc *)&unirom[offs];
622
623 data_size = descr->findex + cpu_to_le32(descr->size);
624
625 if (adapter->fw->size < data_size)
626 return -EINVAL;
627
628 return 0;
629 }
630
631 static int
632 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
633 {
634 struct uni_table_desc *tab_desc;
635 struct uni_data_desc *descr;
636 const u8 *unirom = adapter->fw->data;
637 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
638 QLCNIC_UNI_FIRMWARE_IDX_OFF));
639 __le32 offs;
640 __le32 tab_size;
641 __le32 data_size;
642
643 tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
644
645 if (!tab_desc)
646 return -EINVAL;
647
648 tab_size = cpu_to_le32(tab_desc->findex) +
649 (cpu_to_le32(tab_desc->entry_size * (idx + 1)));
650
651 if (adapter->fw->size < tab_size)
652 return -EINVAL;
653
654 offs = cpu_to_le32(tab_desc->findex) +
655 (cpu_to_le32(tab_desc->entry_size) * (idx));
656 descr = (struct uni_data_desc *)&unirom[offs];
657 data_size = descr->findex + cpu_to_le32(descr->size);
658
659 if (adapter->fw->size < data_size)
660 return -EINVAL;
661
662 return 0;
663 }
664
665 static int
666 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
667 {
668 struct uni_table_desc *ptab_descr;
669 const u8 *unirom = adapter->fw->data;
670 int mn_present = qlcnic_has_mn(adapter);
671 __le32 entries;
672 __le32 entry_size;
673 __le32 tab_size;
674 u32 i;
675
676 ptab_descr = qlcnic_get_table_desc(unirom,
677 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
678 if (!ptab_descr)
679 return -EINVAL;
680
681 entries = cpu_to_le32(ptab_descr->num_entries);
682 entry_size = cpu_to_le32(ptab_descr->entry_size);
683 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
684
685 if (adapter->fw->size < tab_size)
686 return -EINVAL;
687
688 nomn:
689 for (i = 0; i < entries; i++) {
690
691 __le32 flags, file_chiprev, offs;
692 u8 chiprev = adapter->ahw.revision_id;
693 u32 flagbit;
694
695 offs = cpu_to_le32(ptab_descr->findex) +
696 (i * cpu_to_le32(ptab_descr->entry_size));
697 flags = cpu_to_le32(*((int *)&unirom[offs] +
698 QLCNIC_UNI_FLAGS_OFF));
699 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
700 QLCNIC_UNI_CHIP_REV_OFF));
701
702 flagbit = mn_present ? 1 : 2;
703
704 if ((chiprev == file_chiprev) &&
705 ((1ULL << flagbit) & flags)) {
706 adapter->file_prd_off = offs;
707 return 0;
708 }
709 }
710 if (mn_present) {
711 mn_present = 0;
712 goto nomn;
713 }
714 return -EINVAL;
715 }
716
717 static int
718 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
719 {
720 if (qlcnic_validate_header(adapter)) {
721 dev_err(&adapter->pdev->dev,
722 "unified image: header validation failed\n");
723 return -EINVAL;
724 }
725
726 if (qlcnic_validate_product_offs(adapter)) {
727 dev_err(&adapter->pdev->dev,
728 "unified image: product validation failed\n");
729 return -EINVAL;
730 }
731
732 if (qlcnic_validate_bootld(adapter)) {
733 dev_err(&adapter->pdev->dev,
734 "unified image: bootld validation failed\n");
735 return -EINVAL;
736 }
737
738 if (qlcnic_validate_fw(adapter)) {
739 dev_err(&adapter->pdev->dev,
740 "unified image: firmware validation failed\n");
741 return -EINVAL;
742 }
743
744 return 0;
745 }
746
747 static
748 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
749 u32 section, u32 idx_offset)
750 {
751 const u8 *unirom = adapter->fw->data;
752 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
753 idx_offset));
754 struct uni_table_desc *tab_desc;
755 __le32 offs;
756
757 tab_desc = qlcnic_get_table_desc(unirom, section);
758
759 if (tab_desc == NULL)
760 return NULL;
761
762 offs = cpu_to_le32(tab_desc->findex) +
763 (cpu_to_le32(tab_desc->entry_size) * idx);
764
765 return (struct uni_data_desc *)&unirom[offs];
766 }
767
768 static u8 *
769 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
770 {
771 u32 offs = QLCNIC_BOOTLD_START;
772
773 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
774 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
775 QLCNIC_UNI_DIR_SECT_BOOTLD,
776 QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
777
778 return (u8 *)&adapter->fw->data[offs];
779 }
780
781 static u8 *
782 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
783 {
784 u32 offs = QLCNIC_IMAGE_START;
785
786 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
787 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
788 QLCNIC_UNI_DIR_SECT_FW,
789 QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
790
791 return (u8 *)&adapter->fw->data[offs];
792 }
793
794 static __le32
795 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
796 {
797 if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
798 return cpu_to_le32((qlcnic_get_data_desc(adapter,
799 QLCNIC_UNI_DIR_SECT_FW,
800 QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
801 else
802 return cpu_to_le32(
803 *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
804 }
805
806 static __le32
807 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
808 {
809 struct uni_data_desc *fw_data_desc;
810 const struct firmware *fw = adapter->fw;
811 __le32 major, minor, sub;
812 const u8 *ver_str;
813 int i, ret;
814
815 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
816 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
817
818 fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
819 QLCNIC_UNI_FIRMWARE_IDX_OFF);
820 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
821 cpu_to_le32(fw_data_desc->size) - 17;
822
823 for (i = 0; i < 12; i++) {
824 if (!strncmp(&ver_str[i], "REV=", 4)) {
825 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
826 &major, &minor, &sub);
827 if (ret != 3)
828 return 0;
829 else
830 return major + (minor << 8) + (sub << 16);
831 }
832 }
833
834 return 0;
835 }
836
837 static __le32
838 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
839 {
840 const struct firmware *fw = adapter->fw;
841 __le32 bios_ver, prd_off = adapter->file_prd_off;
842
843 if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
844 return cpu_to_le32(
845 *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
846
847 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
848 + QLCNIC_UNI_BIOS_VERSION_OFF));
849
850 return (bios_ver << 24) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
851 }
852
853 int
854 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
855 {
856 u32 count, old_count;
857 u32 val, version, major, minor, build;
858 int i, timeout;
859
860 if (adapter->need_fw_reset)
861 return 1;
862
863 /* last attempt had failed */
864 if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
865 return 1;
866
867 old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
868
869 for (i = 0; i < 10; i++) {
870
871 timeout = msleep_interruptible(200);
872 if (timeout) {
873 QLCWR32(adapter, CRB_CMDPEG_STATE,
874 PHAN_INITIALIZE_FAILED);
875 return -EINTR;
876 }
877
878 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
879 if (count != old_count)
880 break;
881 }
882
883 /* firmware is dead */
884 if (count == old_count)
885 return 1;
886
887 /* check if we have got newer or different file firmware */
888 if (adapter->fw) {
889
890 val = qlcnic_get_fw_version(adapter);
891
892 version = QLCNIC_DECODE_VERSION(val);
893
894 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
895 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
896 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
897
898 if (version > QLCNIC_VERSION_CODE(major, minor, build))
899 return 1;
900 }
901
902 return 0;
903 }
904
905 static const char *fw_name[] = {
906 QLCNIC_UNIFIED_ROMIMAGE_NAME,
907 QLCNIC_FLASH_ROMIMAGE_NAME,
908 };
909
910 int
911 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
912 {
913 u64 *ptr64;
914 u32 i, flashaddr, size;
915 const struct firmware *fw = adapter->fw;
916 struct pci_dev *pdev = adapter->pdev;
917
918 dev_info(&pdev->dev, "loading firmware from %s\n",
919 fw_name[adapter->fw_type]);
920
921 if (fw) {
922 __le64 data;
923
924 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
925
926 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
927 flashaddr = QLCNIC_BOOTLD_START;
928
929 for (i = 0; i < size; i++) {
930 data = cpu_to_le64(ptr64[i]);
931
932 if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
933 return -EIO;
934
935 flashaddr += 8;
936 }
937
938 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
939
940 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
941 flashaddr = QLCNIC_IMAGE_START;
942
943 for (i = 0; i < size; i++) {
944 data = cpu_to_le64(ptr64[i]);
945
946 if (qlcnic_pci_mem_write_2M(adapter,
947 flashaddr, data))
948 return -EIO;
949
950 flashaddr += 8;
951 }
952 } else {
953 u64 data;
954 u32 hi, lo;
955
956 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
957 flashaddr = QLCNIC_BOOTLD_START;
958
959 for (i = 0; i < size; i++) {
960 if (qlcnic_rom_fast_read(adapter,
961 flashaddr, (int *)&lo) != 0)
962 return -EIO;
963 if (qlcnic_rom_fast_read(adapter,
964 flashaddr + 4, (int *)&hi) != 0)
965 return -EIO;
966
967 data = (((u64)hi << 32) | lo);
968
969 if (qlcnic_pci_mem_write_2M(adapter,
970 flashaddr, data))
971 return -EIO;
972
973 flashaddr += 8;
974 }
975 }
976 msleep(1);
977
978 QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
979 QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
980 return 0;
981 }
982
983 static int
984 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
985 {
986 __le32 val;
987 u32 ver, min_ver, bios, min_size;
988 struct pci_dev *pdev = adapter->pdev;
989 const struct firmware *fw = adapter->fw;
990 u8 fw_type = adapter->fw_type;
991
992 if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
993 if (qlcnic_validate_unified_romimage(adapter))
994 return -EINVAL;
995
996 min_size = QLCNIC_UNI_FW_MIN_SIZE;
997 } else {
998 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
999 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1000 return -EINVAL;
1001
1002 min_size = QLCNIC_FW_MIN_SIZE;
1003 }
1004
1005 if (fw->size < min_size)
1006 return -EINVAL;
1007
1008 val = qlcnic_get_fw_version(adapter);
1009
1010 min_ver = QLCNIC_VERSION_CODE(4, 0, 216);
1011
1012 ver = QLCNIC_DECODE_VERSION(val);
1013
1014 if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) {
1015 dev_err(&pdev->dev,
1016 "%s: firmware version %d.%d.%d unsupported\n",
1017 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1018 return -EINVAL;
1019 }
1020
1021 val = qlcnic_get_bios_version(adapter);
1022 qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1023 if ((__force u32)val != bios) {
1024 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1025 fw_name[fw_type]);
1026 return -EINVAL;
1027 }
1028
1029 /* check if flashed firmware is newer */
1030 if (qlcnic_rom_fast_read(adapter,
1031 QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1032 return -EIO;
1033
1034 val = QLCNIC_DECODE_VERSION(val);
1035 if (val > ver) {
1036 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1037 fw_name[fw_type]);
1038 return -EINVAL;
1039 }
1040
1041 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1042 return 0;
1043 }
1044
1045 static void
1046 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1047 {
1048 u8 fw_type;
1049
1050 switch (adapter->fw_type) {
1051 case QLCNIC_UNKNOWN_ROMIMAGE:
1052 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1053 break;
1054
1055 case QLCNIC_UNIFIED_ROMIMAGE:
1056 default:
1057 fw_type = QLCNIC_FLASH_ROMIMAGE;
1058 break;
1059 }
1060
1061 adapter->fw_type = fw_type;
1062 }
1063
1064
1065
1066 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1067 {
1068 struct pci_dev *pdev = adapter->pdev;
1069 int rc;
1070
1071 adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1072
1073 next:
1074 qlcnic_get_next_fwtype(adapter);
1075
1076 if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1077 adapter->fw = NULL;
1078 } else {
1079 rc = request_firmware(&adapter->fw,
1080 fw_name[adapter->fw_type], &pdev->dev);
1081 if (rc != 0)
1082 goto next;
1083
1084 rc = qlcnic_validate_firmware(adapter);
1085 if (rc != 0) {
1086 release_firmware(adapter->fw);
1087 msleep(1);
1088 goto next;
1089 }
1090 }
1091 }
1092
1093
1094 void
1095 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1096 {
1097 if (adapter->fw)
1098 release_firmware(adapter->fw);
1099 adapter->fw = NULL;
1100 }
1101
1102 int qlcnic_phantom_init(struct qlcnic_adapter *adapter)
1103 {
1104 u32 val;
1105 int retries = 60;
1106
1107 do {
1108 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1109
1110 switch (val) {
1111 case PHAN_INITIALIZE_COMPLETE:
1112 case PHAN_INITIALIZE_ACK:
1113 return 0;
1114 case PHAN_INITIALIZE_FAILED:
1115 goto out_err;
1116 default:
1117 break;
1118 }
1119
1120 msleep(500);
1121
1122 } while (--retries);
1123
1124 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1125
1126 out_err:
1127 dev_err(&adapter->pdev->dev, "firmware init failed\n");
1128 return -EIO;
1129 }
1130
1131 static int
1132 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1133 {
1134 u32 val;
1135 int retries = 2000;
1136
1137 do {
1138 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1139
1140 if (val == PHAN_PEG_RCV_INITIALIZED)
1141 return 0;
1142
1143 msleep(10);
1144
1145 } while (--retries);
1146
1147 if (!retries) {
1148 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1149 "complete, state: 0x%x.\n", val);
1150 return -EIO;
1151 }
1152
1153 return 0;
1154 }
1155
1156 int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1157 {
1158 int err;
1159
1160 err = qlcnic_receive_peg_ready(adapter);
1161 if (err)
1162 return err;
1163
1164 QLCWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1165 QLCWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1166 QLCWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1167 QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1168
1169 return err;
1170 }
1171
1172 static void
1173 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1174 struct qlcnic_fw_msg *msg)
1175 {
1176 u32 cable_OUI;
1177 u16 cable_len;
1178 u16 link_speed;
1179 u8 link_status, module, duplex, autoneg;
1180 struct net_device *netdev = adapter->netdev;
1181
1182 adapter->has_link_events = 1;
1183
1184 cable_OUI = msg->body[1] & 0xffffffff;
1185 cable_len = (msg->body[1] >> 32) & 0xffff;
1186 link_speed = (msg->body[1] >> 48) & 0xffff;
1187
1188 link_status = msg->body[2] & 0xff;
1189 duplex = (msg->body[2] >> 16) & 0xff;
1190 autoneg = (msg->body[2] >> 24) & 0xff;
1191
1192 module = (msg->body[2] >> 8) & 0xff;
1193 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1194 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1195 "length %d\n", cable_OUI, cable_len);
1196 else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1197 dev_info(&netdev->dev, "unsupported cable length %d\n",
1198 cable_len);
1199
1200 qlcnic_advert_link_change(adapter, link_status);
1201
1202 if (duplex == LINKEVENT_FULL_DUPLEX)
1203 adapter->link_duplex = DUPLEX_FULL;
1204 else
1205 adapter->link_duplex = DUPLEX_HALF;
1206
1207 adapter->module_type = module;
1208 adapter->link_autoneg = autoneg;
1209 adapter->link_speed = link_speed;
1210 }
1211
1212 static void
1213 qlcnic_handle_fw_message(int desc_cnt, int index,
1214 struct qlcnic_host_sds_ring *sds_ring)
1215 {
1216 struct qlcnic_fw_msg msg;
1217 struct status_desc *desc;
1218 int i = 0, opcode;
1219
1220 while (desc_cnt > 0 && i < 8) {
1221 desc = &sds_ring->desc_head[index];
1222 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1223 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1224
1225 index = get_next_index(index, sds_ring->num_desc);
1226 desc_cnt--;
1227 }
1228
1229 opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1230 switch (opcode) {
1231 case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1232 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1233 break;
1234 default:
1235 break;
1236 }
1237 }
1238
1239 static int
1240 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1241 struct qlcnic_host_rds_ring *rds_ring,
1242 struct qlcnic_rx_buffer *buffer)
1243 {
1244 struct sk_buff *skb;
1245 dma_addr_t dma;
1246 struct pci_dev *pdev = adapter->pdev;
1247
1248 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1249 if (!buffer->skb) {
1250 adapter->stats.skb_alloc_failure++;
1251 return -ENOMEM;
1252 }
1253
1254 skb = buffer->skb;
1255
1256 if (!adapter->ahw.cut_through)
1257 skb_reserve(skb, 2);
1258
1259 dma = pci_map_single(pdev, skb->data,
1260 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1261
1262 if (pci_dma_mapping_error(pdev, dma)) {
1263 dev_kfree_skb_any(skb);
1264 buffer->skb = NULL;
1265 return -ENOMEM;
1266 }
1267
1268 buffer->skb = skb;
1269 buffer->dma = dma;
1270 buffer->state = QLCNIC_BUFFER_BUSY;
1271
1272 return 0;
1273 }
1274
1275 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1276 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1277 {
1278 struct qlcnic_rx_buffer *buffer;
1279 struct sk_buff *skb;
1280
1281 buffer = &rds_ring->rx_buf_arr[index];
1282
1283 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1284 PCI_DMA_FROMDEVICE);
1285
1286 skb = buffer->skb;
1287 if (!skb)
1288 goto no_skb;
1289
1290 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1291 adapter->stats.csummed++;
1292 skb->ip_summed = CHECKSUM_UNNECESSARY;
1293 } else {
1294 skb->ip_summed = CHECKSUM_NONE;
1295 }
1296
1297 skb->dev = adapter->netdev;
1298
1299 buffer->skb = NULL;
1300 no_skb:
1301 buffer->state = QLCNIC_BUFFER_FREE;
1302 return skb;
1303 }
1304
1305 static struct qlcnic_rx_buffer *
1306 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1307 struct qlcnic_host_sds_ring *sds_ring,
1308 int ring, u64 sts_data0)
1309 {
1310 struct net_device *netdev = adapter->netdev;
1311 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1312 struct qlcnic_rx_buffer *buffer;
1313 struct sk_buff *skb;
1314 struct qlcnic_host_rds_ring *rds_ring;
1315 int index, length, cksum, pkt_offset;
1316
1317 if (unlikely(ring >= adapter->max_rds_rings))
1318 return NULL;
1319
1320 rds_ring = &recv_ctx->rds_rings[ring];
1321
1322 index = qlcnic_get_sts_refhandle(sts_data0);
1323 if (unlikely(index >= rds_ring->num_desc))
1324 return NULL;
1325
1326 buffer = &rds_ring->rx_buf_arr[index];
1327
1328 length = qlcnic_get_sts_totallength(sts_data0);
1329 cksum = qlcnic_get_sts_status(sts_data0);
1330 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1331
1332 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1333 if (!skb)
1334 return buffer;
1335
1336 if (length > rds_ring->skb_size)
1337 skb_put(skb, rds_ring->skb_size);
1338 else
1339 skb_put(skb, length);
1340
1341 if (pkt_offset)
1342 skb_pull(skb, pkt_offset);
1343
1344 skb->truesize = skb->len + sizeof(struct sk_buff);
1345 skb->protocol = eth_type_trans(skb, netdev);
1346
1347 napi_gro_receive(&sds_ring->napi, skb);
1348
1349 adapter->stats.rx_pkts++;
1350 adapter->stats.rxbytes += length;
1351
1352 return buffer;
1353 }
1354
1355 #define QLC_TCP_HDR_SIZE 20
1356 #define QLC_TCP_TS_OPTION_SIZE 12
1357 #define QLC_TCP_TS_HDR_SIZE (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1358
1359 static struct qlcnic_rx_buffer *
1360 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1361 struct qlcnic_host_sds_ring *sds_ring,
1362 int ring, u64 sts_data0, u64 sts_data1)
1363 {
1364 struct net_device *netdev = adapter->netdev;
1365 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1366 struct qlcnic_rx_buffer *buffer;
1367 struct sk_buff *skb;
1368 struct qlcnic_host_rds_ring *rds_ring;
1369 struct iphdr *iph;
1370 struct tcphdr *th;
1371 bool push, timestamp;
1372 int l2_hdr_offset, l4_hdr_offset;
1373 int index;
1374 u16 lro_length, length, data_offset;
1375 u32 seq_number;
1376
1377 if (unlikely(ring > adapter->max_rds_rings))
1378 return NULL;
1379
1380 rds_ring = &recv_ctx->rds_rings[ring];
1381
1382 index = qlcnic_get_lro_sts_refhandle(sts_data0);
1383 if (unlikely(index > rds_ring->num_desc))
1384 return NULL;
1385
1386 buffer = &rds_ring->rx_buf_arr[index];
1387
1388 timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1389 lro_length = qlcnic_get_lro_sts_length(sts_data0);
1390 l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1391 l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1392 push = qlcnic_get_lro_sts_push_flag(sts_data0);
1393 seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1394
1395 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1396 if (!skb)
1397 return buffer;
1398
1399 if (timestamp)
1400 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1401 else
1402 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1403
1404 skb_put(skb, lro_length + data_offset);
1405
1406 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1407
1408 skb_pull(skb, l2_hdr_offset);
1409 skb->protocol = eth_type_trans(skb, netdev);
1410
1411 iph = (struct iphdr *)skb->data;
1412 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1413
1414 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1415 iph->tot_len = htons(length);
1416 iph->check = 0;
1417 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1418 th->psh = push;
1419 th->seq = htonl(seq_number);
1420
1421 length = skb->len;
1422
1423 netif_receive_skb(skb);
1424
1425 adapter->stats.lro_pkts++;
1426 adapter->stats.lrobytes += length;
1427
1428 return buffer;
1429 }
1430
1431 int
1432 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1433 {
1434 struct qlcnic_adapter *adapter = sds_ring->adapter;
1435 struct list_head *cur;
1436 struct status_desc *desc;
1437 struct qlcnic_rx_buffer *rxbuf;
1438 u64 sts_data0, sts_data1;
1439
1440 int count = 0;
1441 int opcode, ring, desc_cnt;
1442 u32 consumer = sds_ring->consumer;
1443
1444 while (count < max) {
1445 desc = &sds_ring->desc_head[consumer];
1446 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1447
1448 if (!(sts_data0 & STATUS_OWNER_HOST))
1449 break;
1450
1451 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1452 opcode = qlcnic_get_sts_opcode(sts_data0);
1453
1454 switch (opcode) {
1455 case QLCNIC_RXPKT_DESC:
1456 case QLCNIC_OLD_RXPKT_DESC:
1457 case QLCNIC_SYN_OFFLOAD:
1458 ring = qlcnic_get_sts_type(sts_data0);
1459 rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1460 ring, sts_data0);
1461 break;
1462 case QLCNIC_LRO_DESC:
1463 ring = qlcnic_get_lro_sts_type(sts_data0);
1464 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1465 rxbuf = qlcnic_process_lro(adapter, sds_ring,
1466 ring, sts_data0, sts_data1);
1467 break;
1468 case QLCNIC_RESPONSE_DESC:
1469 qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1470 default:
1471 goto skip;
1472 }
1473
1474 WARN_ON(desc_cnt > 1);
1475
1476 if (rxbuf)
1477 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1478
1479 skip:
1480 for (; desc_cnt > 0; desc_cnt--) {
1481 desc = &sds_ring->desc_head[consumer];
1482 desc->status_desc_data[0] =
1483 cpu_to_le64(STATUS_OWNER_PHANTOM);
1484 consumer = get_next_index(consumer, sds_ring->num_desc);
1485 }
1486 count++;
1487 }
1488
1489 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1490 struct qlcnic_host_rds_ring *rds_ring =
1491 &adapter->recv_ctx.rds_rings[ring];
1492
1493 if (!list_empty(&sds_ring->free_list[ring])) {
1494 list_for_each(cur, &sds_ring->free_list[ring]) {
1495 rxbuf = list_entry(cur,
1496 struct qlcnic_rx_buffer, list);
1497 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1498 }
1499 spin_lock(&rds_ring->lock);
1500 list_splice_tail_init(&sds_ring->free_list[ring],
1501 &rds_ring->free_list);
1502 spin_unlock(&rds_ring->lock);
1503 }
1504
1505 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1506 }
1507
1508 if (count) {
1509 sds_ring->consumer = consumer;
1510 writel(consumer, sds_ring->crb_sts_consumer);
1511 }
1512
1513 return count;
1514 }
1515
1516 void
1517 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1518 struct qlcnic_host_rds_ring *rds_ring)
1519 {
1520 struct rcv_desc *pdesc;
1521 struct qlcnic_rx_buffer *buffer;
1522 int producer, count = 0;
1523 struct list_head *head;
1524
1525 producer = rds_ring->producer;
1526
1527 spin_lock(&rds_ring->lock);
1528 head = &rds_ring->free_list;
1529 while (!list_empty(head)) {
1530
1531 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1532
1533 if (!buffer->skb) {
1534 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1535 break;
1536 }
1537
1538 count++;
1539 list_del(&buffer->list);
1540
1541 /* make a rcv descriptor */
1542 pdesc = &rds_ring->desc_head[producer];
1543 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1544 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1545 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1546
1547 producer = get_next_index(producer, rds_ring->num_desc);
1548 }
1549 spin_unlock(&rds_ring->lock);
1550
1551 if (count) {
1552 rds_ring->producer = producer;
1553 writel((producer-1) & (rds_ring->num_desc-1),
1554 rds_ring->crb_rcv_producer);
1555 }
1556 }
1557
1558 static void
1559 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1560 struct qlcnic_host_rds_ring *rds_ring)
1561 {
1562 struct rcv_desc *pdesc;
1563 struct qlcnic_rx_buffer *buffer;
1564 int producer, count = 0;
1565 struct list_head *head;
1566
1567 producer = rds_ring->producer;
1568 if (!spin_trylock(&rds_ring->lock))
1569 return;
1570
1571 head = &rds_ring->free_list;
1572 while (!list_empty(head)) {
1573
1574 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1575
1576 if (!buffer->skb) {
1577 if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1578 break;
1579 }
1580
1581 count++;
1582 list_del(&buffer->list);
1583
1584 /* make a rcv descriptor */
1585 pdesc = &rds_ring->desc_head[producer];
1586 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1587 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1588 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1589
1590 producer = get_next_index(producer, rds_ring->num_desc);
1591 }
1592
1593 if (count) {
1594 rds_ring->producer = producer;
1595 writel((producer - 1) & (rds_ring->num_desc - 1),
1596 rds_ring->crb_rcv_producer);
1597 }
1598 spin_unlock(&rds_ring->lock);
1599 }
1600
1601 static struct qlcnic_rx_buffer *
1602 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1603 struct qlcnic_host_sds_ring *sds_ring,
1604 int ring, u64 sts_data0)
1605 {
1606 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1607 struct qlcnic_rx_buffer *buffer;
1608 struct sk_buff *skb;
1609 struct qlcnic_host_rds_ring *rds_ring;
1610 int index, length, cksum, pkt_offset;
1611
1612 if (unlikely(ring >= adapter->max_rds_rings))
1613 return NULL;
1614
1615 rds_ring = &recv_ctx->rds_rings[ring];
1616
1617 index = qlcnic_get_sts_refhandle(sts_data0);
1618 if (unlikely(index >= rds_ring->num_desc))
1619 return NULL;
1620
1621 buffer = &rds_ring->rx_buf_arr[index];
1622
1623 length = qlcnic_get_sts_totallength(sts_data0);
1624 cksum = qlcnic_get_sts_status(sts_data0);
1625 pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1626
1627 skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1628 if (!skb)
1629 return buffer;
1630
1631 skb_put(skb, rds_ring->skb_size);
1632
1633 if (pkt_offset)
1634 skb_pull(skb, pkt_offset);
1635
1636 skb->truesize = skb->len + sizeof(struct sk_buff);
1637
1638 if (!qlcnic_check_loopback_buff(skb->data))
1639 adapter->diag_cnt++;
1640
1641 dev_kfree_skb_any(skb);
1642 adapter->stats.rx_pkts++;
1643 adapter->stats.rxbytes += length;
1644
1645 return buffer;
1646 }
1647
1648 void
1649 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1650 {
1651 struct qlcnic_adapter *adapter = sds_ring->adapter;
1652 struct status_desc *desc;
1653 struct qlcnic_rx_buffer *rxbuf;
1654 u64 sts_data0;
1655
1656 int opcode, ring, desc_cnt;
1657 u32 consumer = sds_ring->consumer;
1658
1659 desc = &sds_ring->desc_head[consumer];
1660 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1661
1662 if (!(sts_data0 & STATUS_OWNER_HOST))
1663 return;
1664
1665 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1666 opcode = qlcnic_get_sts_opcode(sts_data0);
1667
1668 ring = qlcnic_get_sts_type(sts_data0);
1669 rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1670 ring, sts_data0);
1671
1672 desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1673 consumer = get_next_index(consumer, sds_ring->num_desc);
1674
1675 sds_ring->consumer = consumer;
1676 writel(consumer, sds_ring->crb_sts_consumer);
1677 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree