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Blackfin: sanitize manual control of IPEND[4]
[linux-2.6/linux-2.6-openrd.git] / drivers / net / netxen / netxen_nic_ctx.c
blob9cb8f68780470137e42a57b94b8bde904abbc2d9
1 /*
2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
4 * All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.
23 *
24 */
25
26 #include "netxen_nic_hw.h"
27 #include "netxen_nic.h"
28
29 #define NXHAL_VERSION 1
30
31 static u32
32 netxen_poll_rsp(struct netxen_adapter *adapter)
33 {
34 u32 rsp = NX_CDRP_RSP_OK;
35 int timeout = 0;
36
37 do {
38 /* give atleast 1ms for firmware to respond */
39 msleep(1);
40
41 if (++timeout > NX_OS_CRB_RETRY_COUNT)
42 return NX_CDRP_RSP_TIMEOUT;
43
44 rsp = NXRD32(adapter, NX_CDRP_CRB_OFFSET);
45 } while (!NX_CDRP_IS_RSP(rsp));
46
47 return rsp;
48 }
49
50 static u32
51 netxen_issue_cmd(struct netxen_adapter *adapter,
52 u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd)
53 {
54 u32 rsp;
55 u32 signature = 0;
56 u32 rcode = NX_RCODE_SUCCESS;
57
58 signature = NX_CDRP_SIGNATURE_MAKE(pci_fn, version);
59
60 /* Acquire semaphore before accessing CRB */
61 if (netxen_api_lock(adapter))
62 return NX_RCODE_TIMEOUT;
63
64 NXWR32(adapter, NX_SIGN_CRB_OFFSET, signature);
65
66 NXWR32(adapter, NX_ARG1_CRB_OFFSET, arg1);
67
68 NXWR32(adapter, NX_ARG2_CRB_OFFSET, arg2);
69
70 NXWR32(adapter, NX_ARG3_CRB_OFFSET, arg3);
71
72 NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd));
73
74 rsp = netxen_poll_rsp(adapter);
75
76 if (rsp == NX_CDRP_RSP_TIMEOUT) {
77 printk(KERN_ERR "%s: card response timeout.\n",
78 netxen_nic_driver_name);
79
80 rcode = NX_RCODE_TIMEOUT;
81 } else if (rsp == NX_CDRP_RSP_FAIL) {
82 rcode = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
83
84 printk(KERN_ERR "%s: failed card response code:0x%x\n",
85 netxen_nic_driver_name, rcode);
86 }
87
88 /* Release semaphore */
89 netxen_api_unlock(adapter);
90
91 return rcode;
92 }
93
94 int
95 nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
96 {
97 u32 rcode = NX_RCODE_SUCCESS;
98 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
99
100 if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
101 rcode = netxen_issue_cmd(adapter,
102 adapter->ahw.pci_func,
103 NXHAL_VERSION,
104 recv_ctx->context_id,
105 mtu,
106 0,
107 NX_CDRP_CMD_SET_MTU);
108
109 if (rcode != NX_RCODE_SUCCESS)
110 return -EIO;
111
112 return 0;
113 }
114
115 static int
116 nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
117 {
118 void *addr;
119 nx_hostrq_rx_ctx_t *prq;
120 nx_cardrsp_rx_ctx_t *prsp;
121 nx_hostrq_rds_ring_t *prq_rds;
122 nx_hostrq_sds_ring_t *prq_sds;
123 nx_cardrsp_rds_ring_t *prsp_rds;
124 nx_cardrsp_sds_ring_t *prsp_sds;
125 struct nx_host_rds_ring *rds_ring;
126 struct nx_host_sds_ring *sds_ring;
127
128 dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
129 u64 phys_addr;
130
131 int i, nrds_rings, nsds_rings;
132 size_t rq_size, rsp_size;
133 u32 cap, reg, val;
134
135 int err;
136
137 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
138
139 nrds_rings = adapter->max_rds_rings;
140 nsds_rings = adapter->max_sds_rings;
141
142 rq_size =
143 SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t, nrds_rings, nsds_rings);
144 rsp_size =
145 SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t, nrds_rings, nsds_rings);
146
147 addr = pci_alloc_consistent(adapter->pdev,
148 rq_size, &hostrq_phys_addr);
149 if (addr == NULL)
150 return -ENOMEM;
151 prq = (nx_hostrq_rx_ctx_t *)addr;
152
153 addr = pci_alloc_consistent(adapter->pdev,
154 rsp_size, &cardrsp_phys_addr);
155 if (addr == NULL) {
156 err = -ENOMEM;
157 goto out_free_rq;
158 }
159 prsp = (nx_cardrsp_rx_ctx_t *)addr;
160
161 prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
162
163 cap = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN);
164 cap |= (NX_CAP0_JUMBO_CONTIGUOUS | NX_CAP0_LRO_CONTIGUOUS);
165
166 prq->capabilities[0] = cpu_to_le32(cap);
167 prq->host_int_crb_mode =
168 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
169 prq->host_rds_crb_mode =
170 cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE);
171
172 prq->num_rds_rings = cpu_to_le16(nrds_rings);
173 prq->num_sds_rings = cpu_to_le16(nsds_rings);
174 prq->rds_ring_offset = cpu_to_le32(0);
175
176 val = le32_to_cpu(prq->rds_ring_offset) +
177 (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
178 prq->sds_ring_offset = cpu_to_le32(val);
179
180 prq_rds = (nx_hostrq_rds_ring_t *)(prq->data +
181 le32_to_cpu(prq->rds_ring_offset));
182
183 for (i = 0; i < nrds_rings; i++) {
184
185 rds_ring = &recv_ctx->rds_rings[i];
186
187 prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
188 prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
189 prq_rds[i].ring_kind = cpu_to_le32(i);
190 prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
191 }
192
193 prq_sds = (nx_hostrq_sds_ring_t *)(prq->data +
194 le32_to_cpu(prq->sds_ring_offset));
195
196 for (i = 0; i < nsds_rings; i++) {
197
198 sds_ring = &recv_ctx->sds_rings[i];
199
200 prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
201 prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
202 prq_sds[i].msi_index = cpu_to_le16(i);
203 }
204
205 phys_addr = hostrq_phys_addr;
206 err = netxen_issue_cmd(adapter,
207 adapter->ahw.pci_func,
208 NXHAL_VERSION,
209 (u32)(phys_addr >> 32),
210 (u32)(phys_addr & 0xffffffff),
211 rq_size,
212 NX_CDRP_CMD_CREATE_RX_CTX);
213 if (err) {
214 printk(KERN_WARNING
215 "Failed to create rx ctx in firmware%d\n", err);
216 goto out_free_rsp;
217 }
218
219
220 prsp_rds = ((nx_cardrsp_rds_ring_t *)
221 &prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
222
223 for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
224 rds_ring = &recv_ctx->rds_rings[i];
225
226 reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
227 rds_ring->crb_rcv_producer = netxen_get_ioaddr(adapter,
228 NETXEN_NIC_REG(reg - 0x200));
229 }
230
231 prsp_sds = ((nx_cardrsp_sds_ring_t *)
232 &prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
233
234 for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
235 sds_ring = &recv_ctx->sds_rings[i];
236
237 reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
238 sds_ring->crb_sts_consumer = netxen_get_ioaddr(adapter,
239 NETXEN_NIC_REG(reg - 0x200));
240
241 reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
242 sds_ring->crb_intr_mask = netxen_get_ioaddr(adapter,
243 NETXEN_NIC_REG(reg - 0x200));
244 }
245
246 recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
247 recv_ctx->context_id = le16_to_cpu(prsp->context_id);
248 recv_ctx->virt_port = prsp->virt_port;
249
250 out_free_rsp:
251 pci_free_consistent(adapter->pdev, rsp_size, prsp, cardrsp_phys_addr);
252 out_free_rq:
253 pci_free_consistent(adapter->pdev, rq_size, prq, hostrq_phys_addr);
254 return err;
255 }
256
257 static void
258 nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter)
259 {
260 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
261
262 if (netxen_issue_cmd(adapter,
263 adapter->ahw.pci_func,
264 NXHAL_VERSION,
265 recv_ctx->context_id,
266 NX_DESTROY_CTX_RESET,
267 0,
268 NX_CDRP_CMD_DESTROY_RX_CTX)) {
269
270 printk(KERN_WARNING
271 "%s: Failed to destroy rx ctx in firmware\n",
272 netxen_nic_driver_name);
273 }
274 }
275
276 static int
277 nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
278 {
279 nx_hostrq_tx_ctx_t *prq;
280 nx_hostrq_cds_ring_t *prq_cds;
281 nx_cardrsp_tx_ctx_t *prsp;
282 void *rq_addr, *rsp_addr;
283 size_t rq_size, rsp_size;
284 u32 temp;
285 int err = 0;
286 u64 offset, phys_addr;
287 dma_addr_t rq_phys_addr, rsp_phys_addr;
288 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
289 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
290
291 rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t);
292 rq_addr = pci_alloc_consistent(adapter->pdev,
293 rq_size, &rq_phys_addr);
294 if (!rq_addr)
295 return -ENOMEM;
296
297 rsp_size = SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t);
298 rsp_addr = pci_alloc_consistent(adapter->pdev,
299 rsp_size, &rsp_phys_addr);
300 if (!rsp_addr) {
301 err = -ENOMEM;
302 goto out_free_rq;
303 }
304
305 memset(rq_addr, 0, rq_size);
306 prq = (nx_hostrq_tx_ctx_t *)rq_addr;
307
308 memset(rsp_addr, 0, rsp_size);
309 prsp = (nx_cardrsp_tx_ctx_t *)rsp_addr;
310
311 prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
312
313 temp = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN | NX_CAP0_LSO);
314 prq->capabilities[0] = cpu_to_le32(temp);
315
316 prq->host_int_crb_mode =
317 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
318
319 prq->interrupt_ctl = 0;
320 prq->msi_index = 0;
321
322 prq->dummy_dma_addr = cpu_to_le64(adapter->dummy_dma.phys_addr);
323
324 offset = recv_ctx->phys_addr + sizeof(struct netxen_ring_ctx);
325 prq->cmd_cons_dma_addr = cpu_to_le64(offset);
326
327 prq_cds = &prq->cds_ring;
328
329 prq_cds->host_phys_addr = cpu_to_le64(tx_ring->phys_addr);
330 prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
331
332 phys_addr = rq_phys_addr;
333 err = netxen_issue_cmd(adapter,
334 adapter->ahw.pci_func,
335 NXHAL_VERSION,
336 (u32)(phys_addr >> 32),
337 ((u32)phys_addr & 0xffffffff),
338 rq_size,
339 NX_CDRP_CMD_CREATE_TX_CTX);
340
341 if (err == NX_RCODE_SUCCESS) {
342 temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
343 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
344 NETXEN_NIC_REG(temp - 0x200));
345 #if 0
346 adapter->tx_state =
347 le32_to_cpu(prsp->host_ctx_state);
348 #endif
349 adapter->tx_context_id =
350 le16_to_cpu(prsp->context_id);
351 } else {
352 printk(KERN_WARNING
353 "Failed to create tx ctx in firmware%d\n", err);
354 err = -EIO;
355 }
356
357 pci_free_consistent(adapter->pdev, rsp_size, rsp_addr, rsp_phys_addr);
358
359 out_free_rq:
360 pci_free_consistent(adapter->pdev, rq_size, rq_addr, rq_phys_addr);
361
362 return err;
363 }
364
365 static void
366 nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter)
367 {
368 if (netxen_issue_cmd(adapter,
369 adapter->ahw.pci_func,
370 NXHAL_VERSION,
371 adapter->tx_context_id,
372 NX_DESTROY_CTX_RESET,
373 0,
374 NX_CDRP_CMD_DESTROY_TX_CTX)) {
375
376 printk(KERN_WARNING
377 "%s: Failed to destroy tx ctx in firmware\n",
378 netxen_nic_driver_name);
379 }
380 }
381
382 int
383 nx_fw_cmd_query_phy(struct netxen_adapter *adapter, u32 reg, u32 *val)
384 {
385 u32 rcode;
386
387 rcode = netxen_issue_cmd(adapter,
388 adapter->ahw.pci_func,
389 NXHAL_VERSION,
390 reg,
391 0,
392 0,
393 NX_CDRP_CMD_READ_PHY);
394
395 if (rcode != NX_RCODE_SUCCESS)
396 return -EIO;
397
398 return NXRD32(adapter, NX_ARG1_CRB_OFFSET);
399 }
400
401 int
402 nx_fw_cmd_set_phy(struct netxen_adapter *adapter, u32 reg, u32 val)
403 {
404 u32 rcode;
405
406 rcode = netxen_issue_cmd(adapter,
407 adapter->ahw.pci_func,
408 NXHAL_VERSION,
409 reg,
410 val,
411 0,
412 NX_CDRP_CMD_WRITE_PHY);
413
414 if (rcode != NX_RCODE_SUCCESS)
415 return -EIO;
416
417 return 0;
418 }
419
420 static u64 ctx_addr_sig_regs[][3] = {
421 {NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},
422 {NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},
423 {NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},
424 {NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}
425 };
426
427 #define CRB_CTX_ADDR_REG_LO(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][0])
428 #define CRB_CTX_ADDR_REG_HI(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][2])
429 #define CRB_CTX_SIGNATURE_REG(FUNC_ID) (ctx_addr_sig_regs[FUNC_ID][1])
430
431 #define lower32(x) ((u32)((x) & 0xffffffff))
432 #define upper32(x) ((u32)(((u64)(x) >> 32) & 0xffffffff))
433
434 static struct netxen_recv_crb recv_crb_registers[] = {
435 /* Instance 0 */
436 {
437 /* crb_rcv_producer: */
438 {
439 NETXEN_NIC_REG(0x100),
440 /* Jumbo frames */
441 NETXEN_NIC_REG(0x110),
442 /* LRO */
443 NETXEN_NIC_REG(0x120)
444 },
445 /* crb_sts_consumer: */
446 {
447 NETXEN_NIC_REG(0x138),
448 NETXEN_NIC_REG_2(0x000),
449 NETXEN_NIC_REG_2(0x004),
450 NETXEN_NIC_REG_2(0x008),
451 },
452 /* sw_int_mask */
453 {
454 CRB_SW_INT_MASK_0,
455 NETXEN_NIC_REG_2(0x044),
456 NETXEN_NIC_REG_2(0x048),
457 NETXEN_NIC_REG_2(0x04c),
458 },
459 },
460 /* Instance 1 */
461 {
462 /* crb_rcv_producer: */
463 {
464 NETXEN_NIC_REG(0x144),
465 /* Jumbo frames */
466 NETXEN_NIC_REG(0x154),
467 /* LRO */
468 NETXEN_NIC_REG(0x164)
469 },
470 /* crb_sts_consumer: */
471 {
472 NETXEN_NIC_REG(0x17c),
473 NETXEN_NIC_REG_2(0x020),
474 NETXEN_NIC_REG_2(0x024),
475 NETXEN_NIC_REG_2(0x028),
476 },
477 /* sw_int_mask */
478 {
479 CRB_SW_INT_MASK_1,
480 NETXEN_NIC_REG_2(0x064),
481 NETXEN_NIC_REG_2(0x068),
482 NETXEN_NIC_REG_2(0x06c),
483 },
484 },
485 /* Instance 2 */
486 {
487 /* crb_rcv_producer: */
488 {
489 NETXEN_NIC_REG(0x1d8),
490 /* Jumbo frames */
491 NETXEN_NIC_REG(0x1f8),
492 /* LRO */
493 NETXEN_NIC_REG(0x208)
494 },
495 /* crb_sts_consumer: */
496 {
497 NETXEN_NIC_REG(0x220),
498 NETXEN_NIC_REG_2(0x03c),
499 NETXEN_NIC_REG_2(0x03c),
500 NETXEN_NIC_REG_2(0x03c),
501 },
502 /* sw_int_mask */
503 {
504 CRB_SW_INT_MASK_2,
505 NETXEN_NIC_REG_2(0x03c),
506 NETXEN_NIC_REG_2(0x03c),
507 NETXEN_NIC_REG_2(0x03c),
508 },
509 },
510 /* Instance 3 */
511 {
512 /* crb_rcv_producer: */
513 {
514 NETXEN_NIC_REG(0x22c),
515 /* Jumbo frames */
516 NETXEN_NIC_REG(0x23c),
517 /* LRO */
518 NETXEN_NIC_REG(0x24c)
519 },
520 /* crb_sts_consumer: */
521 {
522 NETXEN_NIC_REG(0x264),
523 NETXEN_NIC_REG_2(0x03c),
524 NETXEN_NIC_REG_2(0x03c),
525 NETXEN_NIC_REG_2(0x03c),
526 },
527 /* sw_int_mask */
528 {
529 CRB_SW_INT_MASK_3,
530 NETXEN_NIC_REG_2(0x03c),
531 NETXEN_NIC_REG_2(0x03c),
532 NETXEN_NIC_REG_2(0x03c),
533 },
534 },
535 };
536
537 static int
538 netxen_init_old_ctx(struct netxen_adapter *adapter)
539 {
540 struct netxen_recv_context *recv_ctx;
541 struct nx_host_rds_ring *rds_ring;
542 struct nx_host_sds_ring *sds_ring;
543 struct nx_host_tx_ring *tx_ring;
544 int ring;
545 int port = adapter->portnum;
546 struct netxen_ring_ctx *hwctx;
547 u32 signature;
548
549 tx_ring = adapter->tx_ring;
550 recv_ctx = &adapter->recv_ctx;
551 hwctx = recv_ctx->hwctx;
552
553 hwctx->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
554 hwctx->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
555
556
557 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
558 rds_ring = &recv_ctx->rds_rings[ring];
559
560 hwctx->rcv_rings[ring].addr =
561 cpu_to_le64(rds_ring->phys_addr);
562 hwctx->rcv_rings[ring].size =
563 cpu_to_le32(rds_ring->num_desc);
564 }
565
566 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
567 sds_ring = &recv_ctx->sds_rings[ring];
568
569 if (ring == 0) {
570 hwctx->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
571 hwctx->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
572 }
573 hwctx->sts_rings[ring].addr = cpu_to_le64(sds_ring->phys_addr);
574 hwctx->sts_rings[ring].size = cpu_to_le32(sds_ring->num_desc);
575 hwctx->sts_rings[ring].msi_index = cpu_to_le16(ring);
576 }
577 hwctx->sts_ring_count = cpu_to_le32(adapter->max_sds_rings);
578
579 signature = (adapter->max_sds_rings > 1) ?
580 NETXEN_CTX_SIGNATURE_V2 : NETXEN_CTX_SIGNATURE;
581
582 NXWR32(adapter, CRB_CTX_ADDR_REG_LO(port),
583 lower32(recv_ctx->phys_addr));
584 NXWR32(adapter, CRB_CTX_ADDR_REG_HI(port),
585 upper32(recv_ctx->phys_addr));
586 NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
587 signature | port);
588 return 0;
589 }
590
591 int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
592 {
593 void *addr;
594 int err = 0;
595 int ring;
596 struct netxen_recv_context *recv_ctx;
597 struct nx_host_rds_ring *rds_ring;
598 struct nx_host_sds_ring *sds_ring;
599 struct nx_host_tx_ring *tx_ring;
600
601 struct pci_dev *pdev = adapter->pdev;
602 struct net_device *netdev = adapter->netdev;
603 int port = adapter->portnum;
604
605 recv_ctx = &adapter->recv_ctx;
606 tx_ring = adapter->tx_ring;
607
608 addr = pci_alloc_consistent(pdev,
609 sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
610 &recv_ctx->phys_addr);
611 if (addr == NULL) {
612 dev_err(&pdev->dev, "failed to allocate hw context\n");
613 return -ENOMEM;
614 }
615
616 memset(addr, 0, sizeof(struct netxen_ring_ctx));
617 recv_ctx->hwctx = (struct netxen_ring_ctx *)addr;
618 recv_ctx->hwctx->ctx_id = cpu_to_le32(port);
619 recv_ctx->hwctx->cmd_consumer_offset =
620 cpu_to_le64(recv_ctx->phys_addr +
621 sizeof(struct netxen_ring_ctx));
622 tx_ring->hw_consumer =
623 (__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx));
624
625 /* cmd desc ring */
626 addr = pci_alloc_consistent(pdev, TX_DESC_RINGSIZE(tx_ring),
627 &tx_ring->phys_addr);
628
629 if (addr == NULL) {
630 dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
631 netdev->name);
632 return -ENOMEM;
633 }
634
635 tx_ring->desc_head = (struct cmd_desc_type0 *)addr;
636
637 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
638 rds_ring = &recv_ctx->rds_rings[ring];
639 addr = pci_alloc_consistent(adapter->pdev,
640 RCV_DESC_RINGSIZE(rds_ring),
641 &rds_ring->phys_addr);
642 if (addr == NULL) {
643 dev_err(&pdev->dev,
644 "%s: failed to allocate rds ring [%d]\n",
645 netdev->name, ring);
646 err = -ENOMEM;
647 goto err_out_free;
648 }
649 rds_ring->desc_head = (struct rcv_desc *)addr;
650
651 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
652 rds_ring->crb_rcv_producer =
653 netxen_get_ioaddr(adapter,
654 recv_crb_registers[port].crb_rcv_producer[ring]);
655 }
656
657 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
658 sds_ring = &recv_ctx->sds_rings[ring];
659
660 addr = pci_alloc_consistent(adapter->pdev,
661 STATUS_DESC_RINGSIZE(sds_ring),
662 &sds_ring->phys_addr);
663 if (addr == NULL) {
664 dev_err(&pdev->dev,
665 "%s: failed to allocate sds ring [%d]\n",
666 netdev->name, ring);
667 err = -ENOMEM;
668 goto err_out_free;
669 }
670 sds_ring->desc_head = (struct status_desc *)addr;
671
672 sds_ring->crb_sts_consumer =
673 netxen_get_ioaddr(adapter,
674 recv_crb_registers[port].crb_sts_consumer[ring]);
675
676 sds_ring->crb_intr_mask =
677 netxen_get_ioaddr(adapter,
678 recv_crb_registers[port].sw_int_mask[ring]);
679 }
680
681
682 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
683 if (test_and_set_bit(__NX_FW_ATTACHED, &adapter->state))
684 goto done;
685
686 err = nx_fw_cmd_create_rx_ctx(adapter);
687 if (err)
688 goto err_out_free;
689 err = nx_fw_cmd_create_tx_ctx(adapter);
690 if (err)
691 goto err_out_free;
692 } else {
693 err = netxen_init_old_ctx(adapter);
694 if (err)
695 goto err_out_free;
696 }
697
698 done:
699 return 0;
700
701 err_out_free:
702 netxen_free_hw_resources(adapter);
703 return err;
704 }
705
706 void netxen_free_hw_resources(struct netxen_adapter *adapter)
707 {
708 struct netxen_recv_context *recv_ctx;
709 struct nx_host_rds_ring *rds_ring;
710 struct nx_host_sds_ring *sds_ring;
711 struct nx_host_tx_ring *tx_ring;
712 int ring;
713
714 int port = adapter->portnum;
715
716 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
717 if (!test_and_clear_bit(__NX_FW_ATTACHED, &adapter->state))
718 goto done;
719
720 nx_fw_cmd_destroy_rx_ctx(adapter);
721 nx_fw_cmd_destroy_tx_ctx(adapter);
722 } else {
723 netxen_api_lock(adapter);
724 NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
725 NETXEN_CTX_D3_RESET | port);
726 netxen_api_unlock(adapter);
727 }
728
729 /* Allow dma queues to drain after context reset */
730 msleep(20);
731
732 done:
733 recv_ctx = &adapter->recv_ctx;
734
735 if (recv_ctx->hwctx != NULL) {
736 pci_free_consistent(adapter->pdev,
737 sizeof(struct netxen_ring_ctx) +
738 sizeof(uint32_t),
739 recv_ctx->hwctx,
740 recv_ctx->phys_addr);
741 recv_ctx->hwctx = NULL;
742 }
743
744 tx_ring = adapter->tx_ring;
745 if (tx_ring->desc_head != NULL) {
746 pci_free_consistent(adapter->pdev,
747 TX_DESC_RINGSIZE(tx_ring),
748 tx_ring->desc_head, tx_ring->phys_addr);
749 tx_ring->desc_head = NULL;
750 }
751
752 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
753 rds_ring = &recv_ctx->rds_rings[ring];
754
755 if (rds_ring->desc_head != NULL) {
756 pci_free_consistent(adapter->pdev,
757 RCV_DESC_RINGSIZE(rds_ring),
758 rds_ring->desc_head,
759 rds_ring->phys_addr);
760 rds_ring->desc_head = NULL;
761 }
762 }
763
764 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
765 sds_ring = &recv_ctx->sds_rings[ring];
766
767 if (sds_ring->desc_head != NULL) {
768 pci_free_consistent(adapter->pdev,
769 STATUS_DESC_RINGSIZE(sds_ring),
770 sds_ring->desc_head,
771 sds_ring->phys_addr);
772 sds_ring->desc_head = NULL;
773 }
774 }
775 }
776
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