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