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Merge branch 'stable/xen.pm.bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / net / netxen / netxen_nic_init.c
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 "COPYING".
23 *
24 */
25
26 #include <linux/netdevice.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include "netxen_nic.h"
30 #include "netxen_nic_hw.h"
31
32 struct crb_addr_pair {
33 u32 addr;
34 u32 data;
35 };
36
37 #define NETXEN_MAX_CRB_XFORM 60
38 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
39 #define NETXEN_ADDR_ERROR (0xffffffff)
40
41 #define crb_addr_transform(name) \
42 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
43 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
44
45 #define NETXEN_NIC_XDMA_RESET 0x8000ff
46
47 static void
48 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
49 struct nx_host_rds_ring *rds_ring);
50 static int netxen_p3_has_mn(struct netxen_adapter *adapter);
51
52 static void crb_addr_transform_setup(void)
53 {
54 crb_addr_transform(XDMA);
55 crb_addr_transform(TIMR);
56 crb_addr_transform(SRE);
57 crb_addr_transform(SQN3);
58 crb_addr_transform(SQN2);
59 crb_addr_transform(SQN1);
60 crb_addr_transform(SQN0);
61 crb_addr_transform(SQS3);
62 crb_addr_transform(SQS2);
63 crb_addr_transform(SQS1);
64 crb_addr_transform(SQS0);
65 crb_addr_transform(RPMX7);
66 crb_addr_transform(RPMX6);
67 crb_addr_transform(RPMX5);
68 crb_addr_transform(RPMX4);
69 crb_addr_transform(RPMX3);
70 crb_addr_transform(RPMX2);
71 crb_addr_transform(RPMX1);
72 crb_addr_transform(RPMX0);
73 crb_addr_transform(ROMUSB);
74 crb_addr_transform(SN);
75 crb_addr_transform(QMN);
76 crb_addr_transform(QMS);
77 crb_addr_transform(PGNI);
78 crb_addr_transform(PGND);
79 crb_addr_transform(PGN3);
80 crb_addr_transform(PGN2);
81 crb_addr_transform(PGN1);
82 crb_addr_transform(PGN0);
83 crb_addr_transform(PGSI);
84 crb_addr_transform(PGSD);
85 crb_addr_transform(PGS3);
86 crb_addr_transform(PGS2);
87 crb_addr_transform(PGS1);
88 crb_addr_transform(PGS0);
89 crb_addr_transform(PS);
90 crb_addr_transform(PH);
91 crb_addr_transform(NIU);
92 crb_addr_transform(I2Q);
93 crb_addr_transform(EG);
94 crb_addr_transform(MN);
95 crb_addr_transform(MS);
96 crb_addr_transform(CAS2);
97 crb_addr_transform(CAS1);
98 crb_addr_transform(CAS0);
99 crb_addr_transform(CAM);
100 crb_addr_transform(C2C1);
101 crb_addr_transform(C2C0);
102 crb_addr_transform(SMB);
103 crb_addr_transform(OCM0);
104 crb_addr_transform(I2C0);
105 }
106
107 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
108 {
109 struct netxen_recv_context *recv_ctx;
110 struct nx_host_rds_ring *rds_ring;
111 struct netxen_rx_buffer *rx_buf;
112 int i, ring;
113
114 recv_ctx = &adapter->recv_ctx;
115 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
116 rds_ring = &recv_ctx->rds_rings[ring];
117 for (i = 0; i < rds_ring->num_desc; ++i) {
118 rx_buf = &(rds_ring->rx_buf_arr[i]);
119 if (rx_buf->state == NETXEN_BUFFER_FREE)
120 continue;
121 pci_unmap_single(adapter->pdev,
122 rx_buf->dma,
123 rds_ring->dma_size,
124 PCI_DMA_FROMDEVICE);
125 if (rx_buf->skb != NULL)
126 dev_kfree_skb_any(rx_buf->skb);
127 }
128 }
129 }
130
131 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
132 {
133 struct netxen_cmd_buffer *cmd_buf;
134 struct netxen_skb_frag *buffrag;
135 int i, j;
136 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
137
138 cmd_buf = tx_ring->cmd_buf_arr;
139 for (i = 0; i < tx_ring->num_desc; i++) {
140 buffrag = cmd_buf->frag_array;
141 if (buffrag->dma) {
142 pci_unmap_single(adapter->pdev, buffrag->dma,
143 buffrag->length, PCI_DMA_TODEVICE);
144 buffrag->dma = 0ULL;
145 }
146 for (j = 0; j < cmd_buf->frag_count; j++) {
147 buffrag++;
148 if (buffrag->dma) {
149 pci_unmap_page(adapter->pdev, buffrag->dma,
150 buffrag->length,
151 PCI_DMA_TODEVICE);
152 buffrag->dma = 0ULL;
153 }
154 }
155 if (cmd_buf->skb) {
156 dev_kfree_skb_any(cmd_buf->skb);
157 cmd_buf->skb = NULL;
158 }
159 cmd_buf++;
160 }
161 }
162
163 void netxen_free_sw_resources(struct netxen_adapter *adapter)
164 {
165 struct netxen_recv_context *recv_ctx;
166 struct nx_host_rds_ring *rds_ring;
167 struct nx_host_tx_ring *tx_ring;
168 int ring;
169
170 recv_ctx = &adapter->recv_ctx;
171
172 if (recv_ctx->rds_rings == NULL)
173 goto skip_rds;
174
175 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
176 rds_ring = &recv_ctx->rds_rings[ring];
177 vfree(rds_ring->rx_buf_arr);
178 rds_ring->rx_buf_arr = NULL;
179 }
180 kfree(recv_ctx->rds_rings);
181
182 skip_rds:
183 if (adapter->tx_ring == NULL)
184 return;
185
186 tx_ring = adapter->tx_ring;
187 vfree(tx_ring->cmd_buf_arr);
188 kfree(tx_ring);
189 adapter->tx_ring = NULL;
190 }
191
192 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
193 {
194 struct netxen_recv_context *recv_ctx;
195 struct nx_host_rds_ring *rds_ring;
196 struct nx_host_sds_ring *sds_ring;
197 struct nx_host_tx_ring *tx_ring;
198 struct netxen_rx_buffer *rx_buf;
199 int ring, i, size;
200
201 struct netxen_cmd_buffer *cmd_buf_arr;
202 struct net_device *netdev = adapter->netdev;
203 struct pci_dev *pdev = adapter->pdev;
204
205 size = sizeof(struct nx_host_tx_ring);
206 tx_ring = kzalloc(size, GFP_KERNEL);
207 if (tx_ring == NULL) {
208 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
209 netdev->name);
210 return -ENOMEM;
211 }
212 adapter->tx_ring = tx_ring;
213
214 tx_ring->num_desc = adapter->num_txd;
215 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
216
217 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
218 if (cmd_buf_arr == NULL) {
219 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
220 netdev->name);
221 goto err_out;
222 }
223 tx_ring->cmd_buf_arr = cmd_buf_arr;
224
225 recv_ctx = &adapter->recv_ctx;
226
227 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
228 rds_ring = kzalloc(size, GFP_KERNEL);
229 if (rds_ring == NULL) {
230 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
231 netdev->name);
232 goto err_out;
233 }
234 recv_ctx->rds_rings = rds_ring;
235
236 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
237 rds_ring = &recv_ctx->rds_rings[ring];
238 switch (ring) {
239 case RCV_RING_NORMAL:
240 rds_ring->num_desc = adapter->num_rxd;
241 if (adapter->ahw.cut_through) {
242 rds_ring->dma_size =
243 NX_CT_DEFAULT_RX_BUF_LEN;
244 rds_ring->skb_size =
245 NX_CT_DEFAULT_RX_BUF_LEN;
246 } else {
247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
248 rds_ring->dma_size =
249 NX_P3_RX_BUF_MAX_LEN;
250 else
251 rds_ring->dma_size =
252 NX_P2_RX_BUF_MAX_LEN;
253 rds_ring->skb_size =
254 rds_ring->dma_size + NET_IP_ALIGN;
255 }
256 break;
257
258 case RCV_RING_JUMBO:
259 rds_ring->num_desc = adapter->num_jumbo_rxd;
260 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
261 rds_ring->dma_size =
262 NX_P3_RX_JUMBO_BUF_MAX_LEN;
263 else
264 rds_ring->dma_size =
265 NX_P2_RX_JUMBO_BUF_MAX_LEN;
266
267 if (adapter->capabilities & NX_CAP0_HW_LRO)
268 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
269
270 rds_ring->skb_size =
271 rds_ring->dma_size + NET_IP_ALIGN;
272 break;
273
274 case RCV_RING_LRO:
275 rds_ring->num_desc = adapter->num_lro_rxd;
276 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
277 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
278 break;
279
280 }
281 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
282 if (rds_ring->rx_buf_arr == NULL) {
283 printk(KERN_ERR "%s: Failed to allocate "
284 "rx buffer ring %d\n",
285 netdev->name, ring);
286 /* free whatever was already allocated */
287 goto err_out;
288 }
289 INIT_LIST_HEAD(&rds_ring->free_list);
290 /*
291 * Now go through all of them, set reference handles
292 * and put them in the queues.
293 */
294 rx_buf = rds_ring->rx_buf_arr;
295 for (i = 0; i < rds_ring->num_desc; i++) {
296 list_add_tail(&rx_buf->list,
297 &rds_ring->free_list);
298 rx_buf->ref_handle = i;
299 rx_buf->state = NETXEN_BUFFER_FREE;
300 rx_buf++;
301 }
302 spin_lock_init(&rds_ring->lock);
303 }
304
305 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
306 sds_ring = &recv_ctx->sds_rings[ring];
307 sds_ring->irq = adapter->msix_entries[ring].vector;
308 sds_ring->adapter = adapter;
309 sds_ring->num_desc = adapter->num_rxd;
310
311 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
312 INIT_LIST_HEAD(&sds_ring->free_list[i]);
313 }
314
315 return 0;
316
317 err_out:
318 netxen_free_sw_resources(adapter);
319 return -ENOMEM;
320 }
321
322 /*
323 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
324 * address to external PCI CRB address.
325 */
326 static u32 netxen_decode_crb_addr(u32 addr)
327 {
328 int i;
329 u32 base_addr, offset, pci_base;
330
331 crb_addr_transform_setup();
332
333 pci_base = NETXEN_ADDR_ERROR;
334 base_addr = addr & 0xfff00000;
335 offset = addr & 0x000fffff;
336
337 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
338 if (crb_addr_xform[i] == base_addr) {
339 pci_base = i << 20;
340 break;
341 }
342 }
343 if (pci_base == NETXEN_ADDR_ERROR)
344 return pci_base;
345 else
346 return pci_base + offset;
347 }
348
349 #define NETXEN_MAX_ROM_WAIT_USEC 100
350
351 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
352 {
353 long timeout = 0;
354 long done = 0;
355
356 cond_resched();
357
358 while (done == 0) {
359 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
360 done &= 2;
361 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
362 dev_err(&adapter->pdev->dev,
363 "Timeout reached waiting for rom done");
364 return -EIO;
365 }
366 udelay(1);
367 }
368 return 0;
369 }
370
371 static int do_rom_fast_read(struct netxen_adapter *adapter,
372 int addr, int *valp)
373 {
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
377 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
378 if (netxen_wait_rom_done(adapter)) {
379 printk("Error waiting for rom done\n");
380 return -EIO;
381 }
382 /* reset abyte_cnt and dummy_byte_cnt */
383 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
384 udelay(10);
385 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
386
387 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
388 return 0;
389 }
390
391 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
392 u8 *bytes, size_t size)
393 {
394 int addridx;
395 int ret = 0;
396
397 for (addridx = addr; addridx < (addr + size); addridx += 4) {
398 int v;
399 ret = do_rom_fast_read(adapter, addridx, &v);
400 if (ret != 0)
401 break;
402 *(__le32 *)bytes = cpu_to_le32(v);
403 bytes += 4;
404 }
405
406 return ret;
407 }
408
409 int
410 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
411 u8 *bytes, size_t size)
412 {
413 int ret;
414
415 ret = netxen_rom_lock(adapter);
416 if (ret < 0)
417 return ret;
418
419 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
420
421 netxen_rom_unlock(adapter);
422 return ret;
423 }
424
425 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
426 {
427 int ret;
428
429 if (netxen_rom_lock(adapter) != 0)
430 return -EIO;
431
432 ret = do_rom_fast_read(adapter, addr, valp);
433 netxen_rom_unlock(adapter);
434 return ret;
435 }
436
437 #define NETXEN_BOARDTYPE 0x4008
438 #define NETXEN_BOARDNUM 0x400c
439 #define NETXEN_CHIPNUM 0x4010
440
441 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
442 {
443 int addr, val;
444 int i, n, init_delay = 0;
445 struct crb_addr_pair *buf;
446 unsigned offset;
447 u32 off;
448
449 /* resetall */
450 netxen_rom_lock(adapter);
451 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
452 netxen_rom_unlock(adapter);
453
454 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
455 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
456 (n != 0xcafecafe) ||
457 netxen_rom_fast_read(adapter, 4, &n) != 0) {
458 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
459 "n: %08x\n", netxen_nic_driver_name, n);
460 return -EIO;
461 }
462 offset = n & 0xffffU;
463 n = (n >> 16) & 0xffffU;
464 } else {
465 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
466 !(n & 0x80000000)) {
467 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
468 "n: %08x\n", netxen_nic_driver_name, n);
469 return -EIO;
470 }
471 offset = 1;
472 n &= ~0x80000000;
473 }
474
475 if (n >= 1024) {
476 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
477 " initialized.\n", __func__, n);
478 return -EIO;
479 }
480
481 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
482 if (buf == NULL) {
483 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
484 netxen_nic_driver_name);
485 return -ENOMEM;
486 }
487
488 for (i = 0; i < n; i++) {
489 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
490 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
491 kfree(buf);
492 return -EIO;
493 }
494
495 buf[i].addr = addr;
496 buf[i].data = val;
497
498 }
499
500 for (i = 0; i < n; i++) {
501
502 off = netxen_decode_crb_addr(buf[i].addr);
503 if (off == NETXEN_ADDR_ERROR) {
504 printk(KERN_ERR"CRB init value out of range %x\n",
505 buf[i].addr);
506 continue;
507 }
508 off += NETXEN_PCI_CRBSPACE;
509
510 if (off & 1)
511 continue;
512
513 /* skipping cold reboot MAGIC */
514 if (off == NETXEN_CAM_RAM(0x1fc))
515 continue;
516
517 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
518 if (off == (NETXEN_CRB_I2C0 + 0x1c))
519 continue;
520 /* do not reset PCI */
521 if (off == (ROMUSB_GLB + 0xbc))
522 continue;
523 if (off == (ROMUSB_GLB + 0xa8))
524 continue;
525 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
526 continue;
527 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
528 continue;
529 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
530 continue;
531 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
532 continue;
533 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
534 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
535 buf[i].data = 0x1020;
536 /* skip the function enable register */
537 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
538 continue;
539 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
540 continue;
541 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
542 continue;
543 }
544
545 init_delay = 1;
546 /* After writing this register, HW needs time for CRB */
547 /* to quiet down (else crb_window returns 0xffffffff) */
548 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
549 init_delay = 1000;
550 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
551 /* hold xdma in reset also */
552 buf[i].data = NETXEN_NIC_XDMA_RESET;
553 buf[i].data = 0x8000ff;
554 }
555 }
556
557 NXWR32(adapter, off, buf[i].data);
558
559 msleep(init_delay);
560 }
561 kfree(buf);
562
563 /* disable_peg_cache_all */
564
565 /* unreset_net_cache */
566 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
567 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
568 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
569 }
570
571 /* p2dn replyCount */
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
573 /* disable_peg_cache 0 */
574 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
575 /* disable_peg_cache 1 */
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
577
578 /* peg_clr_all */
579
580 /* peg_clr 0 */
581 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
582 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
583 /* peg_clr 1 */
584 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
585 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
586 /* peg_clr 2 */
587 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
588 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
589 /* peg_clr 3 */
590 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
591 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
592 return 0;
593 }
594
595 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
596 {
597 uint32_t i;
598 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
599 __le32 entries = cpu_to_le32(directory->num_entries);
600
601 for (i = 0; i < entries; i++) {
602
603 __le32 offs = cpu_to_le32(directory->findex) +
604 (i * cpu_to_le32(directory->entry_size));
605 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
606
607 if (tab_type == section)
608 return (struct uni_table_desc *) &unirom[offs];
609 }
610
611 return NULL;
612 }
613
614 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
615
616 static int
617 netxen_nic_validate_header(struct netxen_adapter *adapter)
618 {
619 const u8 *unirom = adapter->fw->data;
620 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
621 u32 fw_file_size = adapter->fw->size;
622 u32 tab_size;
623 __le32 entries;
624 __le32 entry_size;
625
626 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
627 return -EINVAL;
628
629 entries = cpu_to_le32(directory->num_entries);
630 entry_size = cpu_to_le32(directory->entry_size);
631 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
632
633 if (fw_file_size < tab_size)
634 return -EINVAL;
635
636 return 0;
637 }
638
639 static int
640 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
641 {
642 struct uni_table_desc *tab_desc;
643 struct uni_data_desc *descr;
644 const u8 *unirom = adapter->fw->data;
645 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
646 NX_UNI_BOOTLD_IDX_OFF));
647 u32 offs;
648 u32 tab_size;
649 u32 data_size;
650
651 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
652
653 if (!tab_desc)
654 return -EINVAL;
655
656 tab_size = cpu_to_le32(tab_desc->findex) +
657 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
658
659 if (adapter->fw->size < tab_size)
660 return -EINVAL;
661
662 offs = cpu_to_le32(tab_desc->findex) +
663 (cpu_to_le32(tab_desc->entry_size) * (idx));
664 descr = (struct uni_data_desc *)&unirom[offs];
665
666 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
667
668 if (adapter->fw->size < data_size)
669 return -EINVAL;
670
671 return 0;
672 }
673
674 static int
675 netxen_nic_validate_fw(struct netxen_adapter *adapter)
676 {
677 struct uni_table_desc *tab_desc;
678 struct uni_data_desc *descr;
679 const u8 *unirom = adapter->fw->data;
680 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
681 NX_UNI_FIRMWARE_IDX_OFF));
682 u32 offs;
683 u32 tab_size;
684 u32 data_size;
685
686 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
687
688 if (!tab_desc)
689 return -EINVAL;
690
691 tab_size = cpu_to_le32(tab_desc->findex) +
692 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
693
694 if (adapter->fw->size < tab_size)
695 return -EINVAL;
696
697 offs = cpu_to_le32(tab_desc->findex) +
698 (cpu_to_le32(tab_desc->entry_size) * (idx));
699 descr = (struct uni_data_desc *)&unirom[offs];
700 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
701
702 if (adapter->fw->size < data_size)
703 return -EINVAL;
704
705 return 0;
706 }
707
708
709 static int
710 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
711 {
712 struct uni_table_desc *ptab_descr;
713 const u8 *unirom = adapter->fw->data;
714 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
715 1 : netxen_p3_has_mn(adapter);
716 __le32 entries;
717 __le32 entry_size;
718 u32 tab_size;
719 u32 i;
720
721 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
722 if (ptab_descr == NULL)
723 return -EINVAL;
724
725 entries = cpu_to_le32(ptab_descr->num_entries);
726 entry_size = cpu_to_le32(ptab_descr->entry_size);
727 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
728
729 if (adapter->fw->size < tab_size)
730 return -EINVAL;
731
732 nomn:
733 for (i = 0; i < entries; i++) {
734
735 __le32 flags, file_chiprev, offs;
736 u8 chiprev = adapter->ahw.revision_id;
737 uint32_t flagbit;
738
739 offs = cpu_to_le32(ptab_descr->findex) +
740 (i * cpu_to_le32(ptab_descr->entry_size));
741 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
742 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
743 NX_UNI_CHIP_REV_OFF));
744
745 flagbit = mn_present ? 1 : 2;
746
747 if ((chiprev == file_chiprev) &&
748 ((1ULL << flagbit) & flags)) {
749 adapter->file_prd_off = offs;
750 return 0;
751 }
752 }
753
754 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
755 mn_present = 0;
756 goto nomn;
757 }
758
759 return -EINVAL;
760 }
761
762 static int
763 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
764 {
765 if (netxen_nic_validate_header(adapter)) {
766 dev_err(&adapter->pdev->dev,
767 "unified image: header validation failed\n");
768 return -EINVAL;
769 }
770
771 if (netxen_nic_validate_product_offs(adapter)) {
772 dev_err(&adapter->pdev->dev,
773 "unified image: product validation failed\n");
774 return -EINVAL;
775 }
776
777 if (netxen_nic_validate_bootld(adapter)) {
778 dev_err(&adapter->pdev->dev,
779 "unified image: bootld validation failed\n");
780 return -EINVAL;
781 }
782
783 if (netxen_nic_validate_fw(adapter)) {
784 dev_err(&adapter->pdev->dev,
785 "unified image: firmware validation failed\n");
786 return -EINVAL;
787 }
788
789 return 0;
790 }
791
792 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
793 u32 section, u32 idx_offset)
794 {
795 const u8 *unirom = adapter->fw->data;
796 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
797 idx_offset));
798 struct uni_table_desc *tab_desc;
799 __le32 offs;
800
801 tab_desc = nx_get_table_desc(unirom, section);
802
803 if (tab_desc == NULL)
804 return NULL;
805
806 offs = cpu_to_le32(tab_desc->findex) +
807 (cpu_to_le32(tab_desc->entry_size) * idx);
808
809 return (struct uni_data_desc *)&unirom[offs];
810 }
811
812 static u8 *
813 nx_get_bootld_offs(struct netxen_adapter *adapter)
814 {
815 u32 offs = NETXEN_BOOTLD_START;
816
817 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
818 offs = cpu_to_le32((nx_get_data_desc(adapter,
819 NX_UNI_DIR_SECT_BOOTLD,
820 NX_UNI_BOOTLD_IDX_OFF))->findex);
821
822 return (u8 *)&adapter->fw->data[offs];
823 }
824
825 static u8 *
826 nx_get_fw_offs(struct netxen_adapter *adapter)
827 {
828 u32 offs = NETXEN_IMAGE_START;
829
830 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
831 offs = cpu_to_le32((nx_get_data_desc(adapter,
832 NX_UNI_DIR_SECT_FW,
833 NX_UNI_FIRMWARE_IDX_OFF))->findex);
834
835 return (u8 *)&adapter->fw->data[offs];
836 }
837
838 static __le32
839 nx_get_fw_size(struct netxen_adapter *adapter)
840 {
841 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
842 return cpu_to_le32((nx_get_data_desc(adapter,
843 NX_UNI_DIR_SECT_FW,
844 NX_UNI_FIRMWARE_IDX_OFF))->size);
845 else
846 return cpu_to_le32(
847 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
848 }
849
850 static __le32
851 nx_get_fw_version(struct netxen_adapter *adapter)
852 {
853 struct uni_data_desc *fw_data_desc;
854 const struct firmware *fw = adapter->fw;
855 __le32 major, minor, sub;
856 const u8 *ver_str;
857 int i, ret = 0;
858
859 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
860
861 fw_data_desc = nx_get_data_desc(adapter,
862 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
863 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
864 cpu_to_le32(fw_data_desc->size) - 17;
865
866 for (i = 0; i < 12; i++) {
867 if (!strncmp(&ver_str[i], "REV=", 4)) {
868 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
869 &major, &minor, &sub);
870 break;
871 }
872 }
873
874 if (ret != 3)
875 return 0;
876
877 return major + (minor << 8) + (sub << 16);
878
879 } else
880 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
881 }
882
883 static __le32
884 nx_get_bios_version(struct netxen_adapter *adapter)
885 {
886 const struct firmware *fw = adapter->fw;
887 __le32 bios_ver, prd_off = adapter->file_prd_off;
888
889 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
890 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
891 + NX_UNI_BIOS_VERSION_OFF));
892 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
893 (bios_ver >> 24);
894 } else
895 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
896
897 }
898
899 int
900 netxen_need_fw_reset(struct netxen_adapter *adapter)
901 {
902 u32 count, old_count;
903 u32 val, version, major, minor, build;
904 int i, timeout;
905 u8 fw_type;
906
907 /* NX2031 firmware doesn't support heartbit */
908 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
909 return 1;
910
911 if (adapter->need_fw_reset)
912 return 1;
913
914 /* last attempt had failed */
915 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
916 return 1;
917
918 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
919
920 for (i = 0; i < 10; i++) {
921
922 timeout = msleep_interruptible(200);
923 if (timeout) {
924 NXWR32(adapter, CRB_CMDPEG_STATE,
925 PHAN_INITIALIZE_FAILED);
926 return -EINTR;
927 }
928
929 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
930 if (count != old_count)
931 break;
932 }
933
934 /* firmware is dead */
935 if (count == old_count)
936 return 1;
937
938 /* check if we have got newer or different file firmware */
939 if (adapter->fw) {
940
941 val = nx_get_fw_version(adapter);
942
943 version = NETXEN_DECODE_VERSION(val);
944
945 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
946 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
947 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
948
949 if (version > NETXEN_VERSION_CODE(major, minor, build))
950 return 1;
951
952 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
953 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
954
955 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
956 fw_type = (val & 0x4) ?
957 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
958
959 if (adapter->fw_type != fw_type)
960 return 1;
961 }
962 }
963
964 return 0;
965 }
966
967 static char *fw_name[] = {
968 NX_P2_MN_ROMIMAGE_NAME,
969 NX_P3_CT_ROMIMAGE_NAME,
970 NX_P3_MN_ROMIMAGE_NAME,
971 NX_UNIFIED_ROMIMAGE_NAME,
972 NX_FLASH_ROMIMAGE_NAME,
973 };
974
975 int
976 netxen_load_firmware(struct netxen_adapter *adapter)
977 {
978 u64 *ptr64;
979 u32 i, flashaddr, size;
980 const struct firmware *fw = adapter->fw;
981 struct pci_dev *pdev = adapter->pdev;
982
983 dev_info(&pdev->dev, "loading firmware from %s\n",
984 fw_name[adapter->fw_type]);
985
986 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
987 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
988
989 if (fw) {
990 __le64 data;
991
992 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
993
994 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
995 flashaddr = NETXEN_BOOTLD_START;
996
997 for (i = 0; i < size; i++) {
998 data = cpu_to_le64(ptr64[i]);
999
1000 if (adapter->pci_mem_write(adapter, flashaddr, data))
1001 return -EIO;
1002
1003 flashaddr += 8;
1004 }
1005
1006 size = (__force u32)nx_get_fw_size(adapter) / 8;
1007
1008 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1009 flashaddr = NETXEN_IMAGE_START;
1010
1011 for (i = 0; i < size; i++) {
1012 data = cpu_to_le64(ptr64[i]);
1013
1014 if (adapter->pci_mem_write(adapter,
1015 flashaddr, data))
1016 return -EIO;
1017
1018 flashaddr += 8;
1019 }
1020
1021 size = (__force u32)nx_get_fw_size(adapter) % 8;
1022 if (size) {
1023 data = cpu_to_le64(ptr64[i]);
1024
1025 if (adapter->pci_mem_write(adapter,
1026 flashaddr, data))
1027 return -EIO;
1028 }
1029
1030 } else {
1031 u64 data;
1032 u32 hi, lo;
1033
1034 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1035 flashaddr = NETXEN_BOOTLD_START;
1036
1037 for (i = 0; i < size; i++) {
1038 if (netxen_rom_fast_read(adapter,
1039 flashaddr, (int *)&lo) != 0)
1040 return -EIO;
1041 if (netxen_rom_fast_read(adapter,
1042 flashaddr + 4, (int *)&hi) != 0)
1043 return -EIO;
1044
1045 /* hi, lo are already in host endian byteorder */
1046 data = (((u64)hi << 32) | lo);
1047
1048 if (adapter->pci_mem_write(adapter,
1049 flashaddr, data))
1050 return -EIO;
1051
1052 flashaddr += 8;
1053 }
1054 }
1055 msleep(1);
1056
1057 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1058 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1059 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1060 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1061 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1062 else {
1063 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1064 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1065 }
1066
1067 return 0;
1068 }
1069
1070 static int
1071 netxen_validate_firmware(struct netxen_adapter *adapter)
1072 {
1073 __le32 val;
1074 u32 ver, min_ver, bios;
1075 struct pci_dev *pdev = adapter->pdev;
1076 const struct firmware *fw = adapter->fw;
1077 u8 fw_type = adapter->fw_type;
1078
1079 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1080 if (netxen_nic_validate_unified_romimage(adapter))
1081 return -EINVAL;
1082 } else {
1083 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1084 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1085 return -EINVAL;
1086
1087 if (fw->size < NX_FW_MIN_SIZE)
1088 return -EINVAL;
1089 }
1090
1091 val = nx_get_fw_version(adapter);
1092
1093 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1094 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
1095 else
1096 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1097
1098 ver = NETXEN_DECODE_VERSION(val);
1099
1100 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
1101 dev_err(&pdev->dev,
1102 "%s: firmware version %d.%d.%d unsupported\n",
1103 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1104 return -EINVAL;
1105 }
1106
1107 val = nx_get_bios_version(adapter);
1108 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
1109 if ((__force u32)val != bios) {
1110 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1111 fw_name[fw_type]);
1112 return -EINVAL;
1113 }
1114
1115 /* check if flashed firmware is newer */
1116 if (netxen_rom_fast_read(adapter,
1117 NX_FW_VERSION_OFFSET, (int *)&val))
1118 return -EIO;
1119 val = NETXEN_DECODE_VERSION(val);
1120 if (val > ver) {
1121 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1122 fw_name[fw_type]);
1123 return -EINVAL;
1124 }
1125
1126 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1127 return 0;
1128 }
1129
1130 static void
1131 nx_get_next_fwtype(struct netxen_adapter *adapter)
1132 {
1133 u8 fw_type;
1134
1135 switch (adapter->fw_type) {
1136 case NX_UNKNOWN_ROMIMAGE:
1137 fw_type = NX_UNIFIED_ROMIMAGE;
1138 break;
1139
1140 case NX_UNIFIED_ROMIMAGE:
1141 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1142 fw_type = NX_FLASH_ROMIMAGE;
1143 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1144 fw_type = NX_P2_MN_ROMIMAGE;
1145 else if (netxen_p3_has_mn(adapter))
1146 fw_type = NX_P3_MN_ROMIMAGE;
1147 else
1148 fw_type = NX_P3_CT_ROMIMAGE;
1149 break;
1150
1151 case NX_P3_MN_ROMIMAGE:
1152 fw_type = NX_P3_CT_ROMIMAGE;
1153 break;
1154
1155 case NX_P2_MN_ROMIMAGE:
1156 case NX_P3_CT_ROMIMAGE:
1157 default:
1158 fw_type = NX_FLASH_ROMIMAGE;
1159 break;
1160 }
1161
1162 adapter->fw_type = fw_type;
1163 }
1164
1165 static int
1166 netxen_p3_has_mn(struct netxen_adapter *adapter)
1167 {
1168 u32 capability, flashed_ver;
1169 capability = 0;
1170
1171 /* NX2031 always had MN */
1172 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1173 return 1;
1174
1175 netxen_rom_fast_read(adapter,
1176 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1177 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1178
1179 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1180
1181 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1182 if (capability & NX_PEG_TUNE_MN_PRESENT)
1183 return 1;
1184 }
1185 return 0;
1186 }
1187
1188 void netxen_request_firmware(struct netxen_adapter *adapter)
1189 {
1190 struct pci_dev *pdev = adapter->pdev;
1191 int rc = 0;
1192
1193 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1194
1195 next:
1196 nx_get_next_fwtype(adapter);
1197
1198 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1199 adapter->fw = NULL;
1200 } else {
1201 rc = request_firmware(&adapter->fw,
1202 fw_name[adapter->fw_type], &pdev->dev);
1203 if (rc != 0)
1204 goto next;
1205
1206 rc = netxen_validate_firmware(adapter);
1207 if (rc != 0) {
1208 release_firmware(adapter->fw);
1209 msleep(1);
1210 goto next;
1211 }
1212 }
1213 }
1214
1215
1216 void
1217 netxen_release_firmware(struct netxen_adapter *adapter)
1218 {
1219 if (adapter->fw)
1220 release_firmware(adapter->fw);
1221 adapter->fw = NULL;
1222 }
1223
1224 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1225 {
1226 u64 addr;
1227 u32 hi, lo;
1228
1229 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1230 return 0;
1231
1232 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1233 NETXEN_HOST_DUMMY_DMA_SIZE,
1234 &adapter->dummy_dma.phys_addr);
1235 if (adapter->dummy_dma.addr == NULL) {
1236 dev_err(&adapter->pdev->dev,
1237 "ERROR: Could not allocate dummy DMA memory\n");
1238 return -ENOMEM;
1239 }
1240
1241 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1242 hi = (addr >> 32) & 0xffffffff;
1243 lo = addr & 0xffffffff;
1244
1245 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1246 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1247
1248 return 0;
1249 }
1250
1251 /*
1252 * NetXen DMA watchdog control:
1253 *
1254 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1255 * Bit 1 : disable_request => 1 req disable dma watchdog
1256 * Bit 2 : enable_request => 1 req enable dma watchdog
1257 * Bit 3-31 : unused
1258 */
1259 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1260 {
1261 int i = 100;
1262 u32 ctrl;
1263
1264 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1265 return;
1266
1267 if (!adapter->dummy_dma.addr)
1268 return;
1269
1270 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1271 if ((ctrl & 0x1) != 0) {
1272 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1273
1274 while ((ctrl & 0x1) != 0) {
1275
1276 msleep(50);
1277
1278 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1279
1280 if (--i == 0)
1281 break;
1282 };
1283 }
1284
1285 if (i) {
1286 pci_free_consistent(adapter->pdev,
1287 NETXEN_HOST_DUMMY_DMA_SIZE,
1288 adapter->dummy_dma.addr,
1289 adapter->dummy_dma.phys_addr);
1290 adapter->dummy_dma.addr = NULL;
1291 } else
1292 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1293 }
1294
1295 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1296 {
1297 u32 val = 0;
1298 int retries = 60;
1299
1300 if (pegtune_val)
1301 return 0;
1302
1303 do {
1304 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1305
1306 switch (val) {
1307 case PHAN_INITIALIZE_COMPLETE:
1308 case PHAN_INITIALIZE_ACK:
1309 return 0;
1310 case PHAN_INITIALIZE_FAILED:
1311 goto out_err;
1312 default:
1313 break;
1314 }
1315
1316 msleep(500);
1317
1318 } while (--retries);
1319
1320 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1321
1322 out_err:
1323 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1324 return -EIO;
1325 }
1326
1327 static int
1328 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1329 {
1330 u32 val = 0;
1331 int retries = 2000;
1332
1333 do {
1334 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1335
1336 if (val == PHAN_PEG_RCV_INITIALIZED)
1337 return 0;
1338
1339 msleep(10);
1340
1341 } while (--retries);
1342
1343 if (!retries) {
1344 printk(KERN_ERR "Receive Peg initialization not "
1345 "complete, state: 0x%x.\n", val);
1346 return -EIO;
1347 }
1348
1349 return 0;
1350 }
1351
1352 int netxen_init_firmware(struct netxen_adapter *adapter)
1353 {
1354 int err;
1355
1356 err = netxen_receive_peg_ready(adapter);
1357 if (err)
1358 return err;
1359
1360 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1361 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1362 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1363
1364 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1365 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1366
1367 return err;
1368 }
1369
1370 static void
1371 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1372 {
1373 u32 cable_OUI;
1374 u16 cable_len;
1375 u16 link_speed;
1376 u8 link_status, module, duplex, autoneg;
1377 struct net_device *netdev = adapter->netdev;
1378
1379 adapter->has_link_events = 1;
1380
1381 cable_OUI = msg->body[1] & 0xffffffff;
1382 cable_len = (msg->body[1] >> 32) & 0xffff;
1383 link_speed = (msg->body[1] >> 48) & 0xffff;
1384
1385 link_status = msg->body[2] & 0xff;
1386 duplex = (msg->body[2] >> 16) & 0xff;
1387 autoneg = (msg->body[2] >> 24) & 0xff;
1388
1389 module = (msg->body[2] >> 8) & 0xff;
1390 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1391 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1392 netdev->name, cable_OUI, cable_len);
1393 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1394 printk(KERN_INFO "%s: unsupported cable length %d\n",
1395 netdev->name, cable_len);
1396 }
1397
1398 netxen_advert_link_change(adapter, link_status);
1399
1400 /* update link parameters */
1401 if (duplex == LINKEVENT_FULL_DUPLEX)
1402 adapter->link_duplex = DUPLEX_FULL;
1403 else
1404 adapter->link_duplex = DUPLEX_HALF;
1405 adapter->module_type = module;
1406 adapter->link_autoneg = autoneg;
1407 adapter->link_speed = link_speed;
1408 }
1409
1410 static void
1411 netxen_handle_fw_message(int desc_cnt, int index,
1412 struct nx_host_sds_ring *sds_ring)
1413 {
1414 nx_fw_msg_t msg;
1415 struct status_desc *desc;
1416 int i = 0, opcode;
1417
1418 while (desc_cnt > 0 && i < 8) {
1419 desc = &sds_ring->desc_head[index];
1420 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1421 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1422
1423 index = get_next_index(index, sds_ring->num_desc);
1424 desc_cnt--;
1425 }
1426
1427 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1428 switch (opcode) {
1429 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1430 netxen_handle_linkevent(sds_ring->adapter, &msg);
1431 break;
1432 default:
1433 break;
1434 }
1435 }
1436
1437 static int
1438 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1439 struct nx_host_rds_ring *rds_ring,
1440 struct netxen_rx_buffer *buffer)
1441 {
1442 struct sk_buff *skb;
1443 dma_addr_t dma;
1444 struct pci_dev *pdev = adapter->pdev;
1445
1446 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1447 if (!buffer->skb)
1448 return 1;
1449
1450 skb = buffer->skb;
1451
1452 if (!adapter->ahw.cut_through)
1453 skb_reserve(skb, 2);
1454
1455 dma = pci_map_single(pdev, skb->data,
1456 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1457
1458 if (pci_dma_mapping_error(pdev, dma)) {
1459 dev_kfree_skb_any(skb);
1460 buffer->skb = NULL;
1461 return 1;
1462 }
1463
1464 buffer->skb = skb;
1465 buffer->dma = dma;
1466 buffer->state = NETXEN_BUFFER_BUSY;
1467
1468 return 0;
1469 }
1470
1471 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1472 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1473 {
1474 struct netxen_rx_buffer *buffer;
1475 struct sk_buff *skb;
1476
1477 buffer = &rds_ring->rx_buf_arr[index];
1478
1479 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1480 PCI_DMA_FROMDEVICE);
1481
1482 skb = buffer->skb;
1483 if (!skb)
1484 goto no_skb;
1485
1486 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1487 adapter->stats.csummed++;
1488 skb->ip_summed = CHECKSUM_UNNECESSARY;
1489 } else
1490 skb->ip_summed = CHECKSUM_NONE;
1491
1492 skb->dev = adapter->netdev;
1493
1494 buffer->skb = NULL;
1495 no_skb:
1496 buffer->state = NETXEN_BUFFER_FREE;
1497 return skb;
1498 }
1499
1500 static struct netxen_rx_buffer *
1501 netxen_process_rcv(struct netxen_adapter *adapter,
1502 struct nx_host_sds_ring *sds_ring,
1503 int ring, u64 sts_data0)
1504 {
1505 struct net_device *netdev = adapter->netdev;
1506 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1507 struct netxen_rx_buffer *buffer;
1508 struct sk_buff *skb;
1509 struct nx_host_rds_ring *rds_ring;
1510 int index, length, cksum, pkt_offset;
1511
1512 if (unlikely(ring >= adapter->max_rds_rings))
1513 return NULL;
1514
1515 rds_ring = &recv_ctx->rds_rings[ring];
1516
1517 index = netxen_get_sts_refhandle(sts_data0);
1518 if (unlikely(index >= rds_ring->num_desc))
1519 return NULL;
1520
1521 buffer = &rds_ring->rx_buf_arr[index];
1522
1523 length = netxen_get_sts_totallength(sts_data0);
1524 cksum = netxen_get_sts_status(sts_data0);
1525 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1526
1527 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1528 if (!skb)
1529 return buffer;
1530
1531 if (length > rds_ring->skb_size)
1532 skb_put(skb, rds_ring->skb_size);
1533 else
1534 skb_put(skb, length);
1535
1536
1537 if (pkt_offset)
1538 skb_pull(skb, pkt_offset);
1539
1540 skb->protocol = eth_type_trans(skb, netdev);
1541
1542 napi_gro_receive(&sds_ring->napi, skb);
1543
1544 adapter->stats.rx_pkts++;
1545 adapter->stats.rxbytes += length;
1546
1547 return buffer;
1548 }
1549
1550 #define TCP_HDR_SIZE 20
1551 #define TCP_TS_OPTION_SIZE 12
1552 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1553
1554 static struct netxen_rx_buffer *
1555 netxen_process_lro(struct netxen_adapter *adapter,
1556 struct nx_host_sds_ring *sds_ring,
1557 int ring, u64 sts_data0, u64 sts_data1)
1558 {
1559 struct net_device *netdev = adapter->netdev;
1560 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1561 struct netxen_rx_buffer *buffer;
1562 struct sk_buff *skb;
1563 struct nx_host_rds_ring *rds_ring;
1564 struct iphdr *iph;
1565 struct tcphdr *th;
1566 bool push, timestamp;
1567 int l2_hdr_offset, l4_hdr_offset;
1568 int index;
1569 u16 lro_length, length, data_offset;
1570 u32 seq_number;
1571
1572 if (unlikely(ring > adapter->max_rds_rings))
1573 return NULL;
1574
1575 rds_ring = &recv_ctx->rds_rings[ring];
1576
1577 index = netxen_get_lro_sts_refhandle(sts_data0);
1578 if (unlikely(index > rds_ring->num_desc))
1579 return NULL;
1580
1581 buffer = &rds_ring->rx_buf_arr[index];
1582
1583 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1584 lro_length = netxen_get_lro_sts_length(sts_data0);
1585 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1586 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1587 push = netxen_get_lro_sts_push_flag(sts_data0);
1588 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1589
1590 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1591 if (!skb)
1592 return buffer;
1593
1594 if (timestamp)
1595 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1596 else
1597 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1598
1599 skb_put(skb, lro_length + data_offset);
1600
1601 skb_pull(skb, l2_hdr_offset);
1602 skb->protocol = eth_type_trans(skb, netdev);
1603
1604 iph = (struct iphdr *)skb->data;
1605 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1606
1607 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1608 iph->tot_len = htons(length);
1609 iph->check = 0;
1610 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1611 th->psh = push;
1612 th->seq = htonl(seq_number);
1613
1614 length = skb->len;
1615
1616 netif_receive_skb(skb);
1617
1618 adapter->stats.lro_pkts++;
1619 adapter->stats.rxbytes += length;
1620
1621 return buffer;
1622 }
1623
1624 #define netxen_merge_rx_buffers(list, head) \
1625 do { list_splice_tail_init(list, head); } while (0);
1626
1627 int
1628 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1629 {
1630 struct netxen_adapter *adapter = sds_ring->adapter;
1631
1632 struct list_head *cur;
1633
1634 struct status_desc *desc;
1635 struct netxen_rx_buffer *rxbuf;
1636
1637 u32 consumer = sds_ring->consumer;
1638
1639 int count = 0;
1640 u64 sts_data0, sts_data1;
1641 int opcode, ring = 0, desc_cnt;
1642
1643 while (count < max) {
1644 desc = &sds_ring->desc_head[consumer];
1645 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1646
1647 if (!(sts_data0 & STATUS_OWNER_HOST))
1648 break;
1649
1650 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1651
1652 opcode = netxen_get_sts_opcode(sts_data0);
1653
1654 switch (opcode) {
1655 case NETXEN_NIC_RXPKT_DESC:
1656 case NETXEN_OLD_RXPKT_DESC:
1657 case NETXEN_NIC_SYN_OFFLOAD:
1658 ring = netxen_get_sts_type(sts_data0);
1659 rxbuf = netxen_process_rcv(adapter, sds_ring,
1660 ring, sts_data0);
1661 break;
1662 case NETXEN_NIC_LRO_DESC:
1663 ring = netxen_get_lro_sts_type(sts_data0);
1664 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1665 rxbuf = netxen_process_lro(adapter, sds_ring,
1666 ring, sts_data0, sts_data1);
1667 break;
1668 case NETXEN_NIC_RESPONSE_DESC:
1669 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1670 default:
1671 goto skip;
1672 }
1673
1674 WARN_ON(desc_cnt > 1);
1675
1676 if (rxbuf)
1677 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1678
1679 skip:
1680 for (; desc_cnt > 0; desc_cnt--) {
1681 desc = &sds_ring->desc_head[consumer];
1682 desc->status_desc_data[0] =
1683 cpu_to_le64(STATUS_OWNER_PHANTOM);
1684 consumer = get_next_index(consumer, sds_ring->num_desc);
1685 }
1686 count++;
1687 }
1688
1689 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1690 struct nx_host_rds_ring *rds_ring =
1691 &adapter->recv_ctx.rds_rings[ring];
1692
1693 if (!list_empty(&sds_ring->free_list[ring])) {
1694 list_for_each(cur, &sds_ring->free_list[ring]) {
1695 rxbuf = list_entry(cur,
1696 struct netxen_rx_buffer, list);
1697 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1698 }
1699 spin_lock(&rds_ring->lock);
1700 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1701 &rds_ring->free_list);
1702 spin_unlock(&rds_ring->lock);
1703 }
1704
1705 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1706 }
1707
1708 if (count) {
1709 sds_ring->consumer = consumer;
1710 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1711 }
1712
1713 return count;
1714 }
1715
1716 /* Process Command status ring */
1717 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1718 {
1719 u32 sw_consumer, hw_consumer;
1720 int count = 0, i;
1721 struct netxen_cmd_buffer *buffer;
1722 struct pci_dev *pdev = adapter->pdev;
1723 struct net_device *netdev = adapter->netdev;
1724 struct netxen_skb_frag *frag;
1725 int done = 0;
1726 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1727
1728 if (!spin_trylock(&adapter->tx_clean_lock))
1729 return 1;
1730
1731 sw_consumer = tx_ring->sw_consumer;
1732 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1733
1734 while (sw_consumer != hw_consumer) {
1735 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1736 if (buffer->skb) {
1737 frag = &buffer->frag_array[0];
1738 pci_unmap_single(pdev, frag->dma, frag->length,
1739 PCI_DMA_TODEVICE);
1740 frag->dma = 0ULL;
1741 for (i = 1; i < buffer->frag_count; i++) {
1742 frag++; /* Get the next frag */
1743 pci_unmap_page(pdev, frag->dma, frag->length,
1744 PCI_DMA_TODEVICE);
1745 frag->dma = 0ULL;
1746 }
1747
1748 adapter->stats.xmitfinished++;
1749 dev_kfree_skb_any(buffer->skb);
1750 buffer->skb = NULL;
1751 }
1752
1753 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1754 if (++count >= MAX_STATUS_HANDLE)
1755 break;
1756 }
1757
1758 if (count && netif_running(netdev)) {
1759 tx_ring->sw_consumer = sw_consumer;
1760
1761 smp_mb();
1762
1763 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1764 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1765 netif_wake_queue(netdev);
1766 adapter->tx_timeo_cnt = 0;
1767 }
1768 /*
1769 * If everything is freed up to consumer then check if the ring is full
1770 * If the ring is full then check if more needs to be freed and
1771 * schedule the call back again.
1772 *
1773 * This happens when there are 2 CPUs. One could be freeing and the
1774 * other filling it. If the ring is full when we get out of here and
1775 * the card has already interrupted the host then the host can miss the
1776 * interrupt.
1777 *
1778 * There is still a possible race condition and the host could miss an
1779 * interrupt. The card has to take care of this.
1780 */
1781 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1782 done = (sw_consumer == hw_consumer);
1783 spin_unlock(&adapter->tx_clean_lock);
1784
1785 return done;
1786 }
1787
1788 void
1789 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1790 struct nx_host_rds_ring *rds_ring)
1791 {
1792 struct rcv_desc *pdesc;
1793 struct netxen_rx_buffer *buffer;
1794 int producer, count = 0;
1795 netxen_ctx_msg msg = 0;
1796 struct list_head *head;
1797
1798 producer = rds_ring->producer;
1799
1800 head = &rds_ring->free_list;
1801 while (!list_empty(head)) {
1802
1803 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1804
1805 if (!buffer->skb) {
1806 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1807 break;
1808 }
1809
1810 count++;
1811 list_del(&buffer->list);
1812
1813 /* make a rcv descriptor */
1814 pdesc = &rds_ring->desc_head[producer];
1815 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1816 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1817 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1818
1819 producer = get_next_index(producer, rds_ring->num_desc);
1820 }
1821
1822 if (count) {
1823 rds_ring->producer = producer;
1824 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1825 (producer-1) & (rds_ring->num_desc-1));
1826
1827 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1828 /*
1829 * Write a doorbell msg to tell phanmon of change in
1830 * receive ring producer
1831 * Only for firmware version < 4.0.0
1832 */
1833 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1834 netxen_set_msg_privid(msg);
1835 netxen_set_msg_count(msg,
1836 ((producer - 1) &
1837 (rds_ring->num_desc - 1)));
1838 netxen_set_msg_ctxid(msg, adapter->portnum);
1839 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1840 NXWRIO(adapter, DB_NORMALIZE(adapter,
1841 NETXEN_RCV_PRODUCER_OFFSET), msg);
1842 }
1843 }
1844 }
1845
1846 static void
1847 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1848 struct nx_host_rds_ring *rds_ring)
1849 {
1850 struct rcv_desc *pdesc;
1851 struct netxen_rx_buffer *buffer;
1852 int producer, count = 0;
1853 struct list_head *head;
1854
1855 if (!spin_trylock(&rds_ring->lock))
1856 return;
1857
1858 producer = rds_ring->producer;
1859
1860 head = &rds_ring->free_list;
1861 while (!list_empty(head)) {
1862
1863 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1864
1865 if (!buffer->skb) {
1866 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1867 break;
1868 }
1869
1870 count++;
1871 list_del(&buffer->list);
1872
1873 /* make a rcv descriptor */
1874 pdesc = &rds_ring->desc_head[producer];
1875 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1876 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1877 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1878
1879 producer = get_next_index(producer, rds_ring->num_desc);
1880 }
1881
1882 if (count) {
1883 rds_ring->producer = producer;
1884 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1885 (producer - 1) & (rds_ring->num_desc - 1));
1886 }
1887 spin_unlock(&rds_ring->lock);
1888 }
1889
1890 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1891 {
1892 memset(&adapter->stats, 0, sizeof(adapter->stats));
1893 }
1894
Linux kernel - Deliverables
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