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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[deliverable/linux.git] / drivers / net / ethernet / qlogic / 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 <linux/if_vlan.h>
30 #include <net/checksum.h>
31 #include "netxen_nic.h"
32 #include "netxen_nic_hw.h"
33
34 struct crb_addr_pair {
35 u32 addr;
36 u32 data;
37 };
38
39 #define NETXEN_MAX_CRB_XFORM 60
40 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
41 #define NETXEN_ADDR_ERROR (0xffffffff)
42
43 #define crb_addr_transform(name) \
44 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
45 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
46
47 #define NETXEN_NIC_XDMA_RESET 0x8000ff
48
49 static void
50 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
51 struct nx_host_rds_ring *rds_ring);
52 static int netxen_p3_has_mn(struct netxen_adapter *adapter);
53
54 static void crb_addr_transform_setup(void)
55 {
56 crb_addr_transform(XDMA);
57 crb_addr_transform(TIMR);
58 crb_addr_transform(SRE);
59 crb_addr_transform(SQN3);
60 crb_addr_transform(SQN2);
61 crb_addr_transform(SQN1);
62 crb_addr_transform(SQN0);
63 crb_addr_transform(SQS3);
64 crb_addr_transform(SQS2);
65 crb_addr_transform(SQS1);
66 crb_addr_transform(SQS0);
67 crb_addr_transform(RPMX7);
68 crb_addr_transform(RPMX6);
69 crb_addr_transform(RPMX5);
70 crb_addr_transform(RPMX4);
71 crb_addr_transform(RPMX3);
72 crb_addr_transform(RPMX2);
73 crb_addr_transform(RPMX1);
74 crb_addr_transform(RPMX0);
75 crb_addr_transform(ROMUSB);
76 crb_addr_transform(SN);
77 crb_addr_transform(QMN);
78 crb_addr_transform(QMS);
79 crb_addr_transform(PGNI);
80 crb_addr_transform(PGND);
81 crb_addr_transform(PGN3);
82 crb_addr_transform(PGN2);
83 crb_addr_transform(PGN1);
84 crb_addr_transform(PGN0);
85 crb_addr_transform(PGSI);
86 crb_addr_transform(PGSD);
87 crb_addr_transform(PGS3);
88 crb_addr_transform(PGS2);
89 crb_addr_transform(PGS1);
90 crb_addr_transform(PGS0);
91 crb_addr_transform(PS);
92 crb_addr_transform(PH);
93 crb_addr_transform(NIU);
94 crb_addr_transform(I2Q);
95 crb_addr_transform(EG);
96 crb_addr_transform(MN);
97 crb_addr_transform(MS);
98 crb_addr_transform(CAS2);
99 crb_addr_transform(CAS1);
100 crb_addr_transform(CAS0);
101 crb_addr_transform(CAM);
102 crb_addr_transform(C2C1);
103 crb_addr_transform(C2C0);
104 crb_addr_transform(SMB);
105 crb_addr_transform(OCM0);
106 crb_addr_transform(I2C0);
107 }
108
109 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
110 {
111 struct netxen_recv_context *recv_ctx;
112 struct nx_host_rds_ring *rds_ring;
113 struct netxen_rx_buffer *rx_buf;
114 int i, ring;
115
116 recv_ctx = &adapter->recv_ctx;
117 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
118 rds_ring = &recv_ctx->rds_rings[ring];
119 for (i = 0; i < rds_ring->num_desc; ++i) {
120 rx_buf = &(rds_ring->rx_buf_arr[i]);
121 if (rx_buf->state == NETXEN_BUFFER_FREE)
122 continue;
123 pci_unmap_single(adapter->pdev,
124 rx_buf->dma,
125 rds_ring->dma_size,
126 PCI_DMA_FROMDEVICE);
127 if (rx_buf->skb != NULL)
128 dev_kfree_skb_any(rx_buf->skb);
129 }
130 }
131 }
132
133 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
134 {
135 struct netxen_cmd_buffer *cmd_buf;
136 struct netxen_skb_frag *buffrag;
137 int i, j;
138 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
139
140 cmd_buf = tx_ring->cmd_buf_arr;
141 for (i = 0; i < tx_ring->num_desc; i++) {
142 buffrag = cmd_buf->frag_array;
143 if (buffrag->dma) {
144 pci_unmap_single(adapter->pdev, buffrag->dma,
145 buffrag->length, PCI_DMA_TODEVICE);
146 buffrag->dma = 0ULL;
147 }
148 for (j = 1; j < cmd_buf->frag_count; j++) {
149 buffrag++;
150 if (buffrag->dma) {
151 pci_unmap_page(adapter->pdev, buffrag->dma,
152 buffrag->length,
153 PCI_DMA_TODEVICE);
154 buffrag->dma = 0ULL;
155 }
156 }
157 if (cmd_buf->skb) {
158 dev_kfree_skb_any(cmd_buf->skb);
159 cmd_buf->skb = NULL;
160 }
161 cmd_buf++;
162 }
163 }
164
165 void netxen_free_sw_resources(struct netxen_adapter *adapter)
166 {
167 struct netxen_recv_context *recv_ctx;
168 struct nx_host_rds_ring *rds_ring;
169 struct nx_host_tx_ring *tx_ring;
170 int ring;
171
172 recv_ctx = &adapter->recv_ctx;
173
174 if (recv_ctx->rds_rings == NULL)
175 goto skip_rds;
176
177 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
178 rds_ring = &recv_ctx->rds_rings[ring];
179 vfree(rds_ring->rx_buf_arr);
180 rds_ring->rx_buf_arr = NULL;
181 }
182 kfree(recv_ctx->rds_rings);
183
184 skip_rds:
185 if (adapter->tx_ring == NULL)
186 return;
187
188 tx_ring = adapter->tx_ring;
189 vfree(tx_ring->cmd_buf_arr);
190 kfree(tx_ring);
191 adapter->tx_ring = NULL;
192 }
193
194 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
195 {
196 struct netxen_recv_context *recv_ctx;
197 struct nx_host_rds_ring *rds_ring;
198 struct nx_host_sds_ring *sds_ring;
199 struct nx_host_tx_ring *tx_ring;
200 struct netxen_rx_buffer *rx_buf;
201 int ring, i;
202
203 struct netxen_cmd_buffer *cmd_buf_arr;
204 struct net_device *netdev = adapter->netdev;
205
206 tx_ring = kzalloc(sizeof(struct nx_host_tx_ring), GFP_KERNEL);
207 if (tx_ring == NULL)
208 return -ENOMEM;
209
210 adapter->tx_ring = tx_ring;
211
212 tx_ring->num_desc = adapter->num_txd;
213 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
214
215 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
216 if (cmd_buf_arr == NULL)
217 goto err_out;
218
219 tx_ring->cmd_buf_arr = cmd_buf_arr;
220
221 recv_ctx = &adapter->recv_ctx;
222
223 rds_ring = kcalloc(adapter->max_rds_rings,
224 sizeof(struct nx_host_rds_ring), GFP_KERNEL);
225 if (rds_ring == NULL)
226 goto err_out;
227
228 recv_ctx->rds_rings = rds_ring;
229
230 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
231 rds_ring = &recv_ctx->rds_rings[ring];
232 switch (ring) {
233 case RCV_RING_NORMAL:
234 rds_ring->num_desc = adapter->num_rxd;
235 if (adapter->ahw.cut_through) {
236 rds_ring->dma_size =
237 NX_CT_DEFAULT_RX_BUF_LEN;
238 rds_ring->skb_size =
239 NX_CT_DEFAULT_RX_BUF_LEN;
240 } else {
241 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
242 rds_ring->dma_size =
243 NX_P3_RX_BUF_MAX_LEN;
244 else
245 rds_ring->dma_size =
246 NX_P2_RX_BUF_MAX_LEN;
247 rds_ring->skb_size =
248 rds_ring->dma_size + NET_IP_ALIGN;
249 }
250 break;
251
252 case RCV_RING_JUMBO:
253 rds_ring->num_desc = adapter->num_jumbo_rxd;
254 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
255 rds_ring->dma_size =
256 NX_P3_RX_JUMBO_BUF_MAX_LEN;
257 else
258 rds_ring->dma_size =
259 NX_P2_RX_JUMBO_BUF_MAX_LEN;
260
261 if (adapter->capabilities & NX_CAP0_HW_LRO)
262 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
263
264 rds_ring->skb_size =
265 rds_ring->dma_size + NET_IP_ALIGN;
266 break;
267
268 case RCV_RING_LRO:
269 rds_ring->num_desc = adapter->num_lro_rxd;
270 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
271 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
272 break;
273
274 }
275 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
276 if (rds_ring->rx_buf_arr == NULL)
277 /* free whatever was already allocated */
278 goto err_out;
279
280 INIT_LIST_HEAD(&rds_ring->free_list);
281 /*
282 * Now go through all of them, set reference handles
283 * and put them in the queues.
284 */
285 rx_buf = rds_ring->rx_buf_arr;
286 for (i = 0; i < rds_ring->num_desc; i++) {
287 list_add_tail(&rx_buf->list,
288 &rds_ring->free_list);
289 rx_buf->ref_handle = i;
290 rx_buf->state = NETXEN_BUFFER_FREE;
291 rx_buf++;
292 }
293 spin_lock_init(&rds_ring->lock);
294 }
295
296 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
297 sds_ring = &recv_ctx->sds_rings[ring];
298 sds_ring->irq = adapter->msix_entries[ring].vector;
299 sds_ring->adapter = adapter;
300 sds_ring->num_desc = adapter->num_rxd;
301
302 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
303 INIT_LIST_HEAD(&sds_ring->free_list[i]);
304 }
305
306 return 0;
307
308 err_out:
309 netxen_free_sw_resources(adapter);
310 return -ENOMEM;
311 }
312
313 /*
314 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
315 * address to external PCI CRB address.
316 */
317 static u32 netxen_decode_crb_addr(u32 addr)
318 {
319 int i;
320 u32 base_addr, offset, pci_base;
321
322 crb_addr_transform_setup();
323
324 pci_base = NETXEN_ADDR_ERROR;
325 base_addr = addr & 0xfff00000;
326 offset = addr & 0x000fffff;
327
328 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
329 if (crb_addr_xform[i] == base_addr) {
330 pci_base = i << 20;
331 break;
332 }
333 }
334 if (pci_base == NETXEN_ADDR_ERROR)
335 return pci_base;
336 else
337 return pci_base + offset;
338 }
339
340 #define NETXEN_MAX_ROM_WAIT_USEC 100
341
342 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
343 {
344 long timeout = 0;
345 long done = 0;
346
347 cond_resched();
348
349 while (done == 0) {
350 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
351 done &= 2;
352 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
353 dev_err(&adapter->pdev->dev,
354 "Timeout reached waiting for rom done");
355 return -EIO;
356 }
357 udelay(1);
358 }
359 return 0;
360 }
361
362 static int do_rom_fast_read(struct netxen_adapter *adapter,
363 int addr, int *valp)
364 {
365 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
366 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
367 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
368 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
369 if (netxen_wait_rom_done(adapter)) {
370 printk("Error waiting for rom done\n");
371 return -EIO;
372 }
373 /* reset abyte_cnt and dummy_byte_cnt */
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
375 udelay(10);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
377
378 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
379 return 0;
380 }
381
382 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
383 u8 *bytes, size_t size)
384 {
385 int addridx;
386 int ret = 0;
387
388 for (addridx = addr; addridx < (addr + size); addridx += 4) {
389 int v;
390 ret = do_rom_fast_read(adapter, addridx, &v);
391 if (ret != 0)
392 break;
393 *(__le32 *)bytes = cpu_to_le32(v);
394 bytes += 4;
395 }
396
397 return ret;
398 }
399
400 int
401 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
402 u8 *bytes, size_t size)
403 {
404 int ret;
405
406 ret = netxen_rom_lock(adapter);
407 if (ret < 0)
408 return ret;
409
410 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
411
412 netxen_rom_unlock(adapter);
413 return ret;
414 }
415
416 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
417 {
418 int ret;
419
420 if (netxen_rom_lock(adapter) != 0)
421 return -EIO;
422
423 ret = do_rom_fast_read(adapter, addr, valp);
424 netxen_rom_unlock(adapter);
425 return ret;
426 }
427
428 #define NETXEN_BOARDTYPE 0x4008
429 #define NETXEN_BOARDNUM 0x400c
430 #define NETXEN_CHIPNUM 0x4010
431
432 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
433 {
434 int addr, val;
435 int i, n, init_delay = 0;
436 struct crb_addr_pair *buf;
437 unsigned offset;
438 u32 off;
439
440 /* resetall */
441 netxen_rom_lock(adapter);
442 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xfeffffff);
443 netxen_rom_unlock(adapter);
444
445 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
446 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
447 (n != 0xcafecafe) ||
448 netxen_rom_fast_read(adapter, 4, &n) != 0) {
449 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
450 "n: %08x\n", netxen_nic_driver_name, n);
451 return -EIO;
452 }
453 offset = n & 0xffffU;
454 n = (n >> 16) & 0xffffU;
455 } else {
456 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
457 !(n & 0x80000000)) {
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 = 1;
463 n &= ~0x80000000;
464 }
465
466 if (n >= 1024) {
467 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
468 " initialized.\n", __func__, n);
469 return -EIO;
470 }
471
472 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
473 if (buf == NULL)
474 return -ENOMEM;
475
476 for (i = 0; i < n; i++) {
477 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
478 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
479 kfree(buf);
480 return -EIO;
481 }
482
483 buf[i].addr = addr;
484 buf[i].data = val;
485
486 }
487
488 for (i = 0; i < n; i++) {
489
490 off = netxen_decode_crb_addr(buf[i].addr);
491 if (off == NETXEN_ADDR_ERROR) {
492 printk(KERN_ERR"CRB init value out of range %x\n",
493 buf[i].addr);
494 continue;
495 }
496 off += NETXEN_PCI_CRBSPACE;
497
498 if (off & 1)
499 continue;
500
501 /* skipping cold reboot MAGIC */
502 if (off == NETXEN_CAM_RAM(0x1fc))
503 continue;
504
505 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
506 if (off == (NETXEN_CRB_I2C0 + 0x1c))
507 continue;
508 /* do not reset PCI */
509 if (off == (ROMUSB_GLB + 0xbc))
510 continue;
511 if (off == (ROMUSB_GLB + 0xa8))
512 continue;
513 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
514 continue;
515 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
516 continue;
517 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
518 continue;
519 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
520 continue;
521 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
522 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
523 buf[i].data = 0x1020;
524 /* skip the function enable register */
525 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
526 continue;
527 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
528 continue;
529 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
530 continue;
531 }
532
533 init_delay = 1;
534 /* After writing this register, HW needs time for CRB */
535 /* to quiet down (else crb_window returns 0xffffffff) */
536 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
537 init_delay = 1000;
538 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
539 /* hold xdma in reset also */
540 buf[i].data = NETXEN_NIC_XDMA_RESET;
541 buf[i].data = 0x8000ff;
542 }
543 }
544
545 NXWR32(adapter, off, buf[i].data);
546
547 msleep(init_delay);
548 }
549 kfree(buf);
550
551 /* disable_peg_cache_all */
552
553 /* unreset_net_cache */
554 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
555 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
556 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
557 }
558
559 /* p2dn replyCount */
560 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
561 /* disable_peg_cache 0 */
562 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
563 /* disable_peg_cache 1 */
564 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
565
566 /* peg_clr_all */
567
568 /* peg_clr 0 */
569 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
570 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
571 /* peg_clr 1 */
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
573 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
574 /* peg_clr 2 */
575 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
577 /* peg_clr 3 */
578 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
579 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
580 return 0;
581 }
582
583 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
584 {
585 uint32_t i;
586 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
587 __le32 entries = cpu_to_le32(directory->num_entries);
588
589 for (i = 0; i < entries; i++) {
590
591 __le32 offs = cpu_to_le32(directory->findex) +
592 (i * cpu_to_le32(directory->entry_size));
593 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
594
595 if (tab_type == section)
596 return (struct uni_table_desc *) &unirom[offs];
597 }
598
599 return NULL;
600 }
601
602 #define QLCNIC_FILEHEADER_SIZE (14 * 4)
603
604 static int
605 netxen_nic_validate_header(struct netxen_adapter *adapter)
606 {
607 const u8 *unirom = adapter->fw->data;
608 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
609 u32 fw_file_size = adapter->fw->size;
610 u32 tab_size;
611 __le32 entries;
612 __le32 entry_size;
613
614 if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
615 return -EINVAL;
616
617 entries = cpu_to_le32(directory->num_entries);
618 entry_size = cpu_to_le32(directory->entry_size);
619 tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
620
621 if (fw_file_size < tab_size)
622 return -EINVAL;
623
624 return 0;
625 }
626
627 static int
628 netxen_nic_validate_bootld(struct netxen_adapter *adapter)
629 {
630 struct uni_table_desc *tab_desc;
631 struct uni_data_desc *descr;
632 const u8 *unirom = adapter->fw->data;
633 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
634 NX_UNI_BOOTLD_IDX_OFF));
635 u32 offs;
636 u32 tab_size;
637 u32 data_size;
638
639 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
640
641 if (!tab_desc)
642 return -EINVAL;
643
644 tab_size = cpu_to_le32(tab_desc->findex) +
645 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
646
647 if (adapter->fw->size < tab_size)
648 return -EINVAL;
649
650 offs = cpu_to_le32(tab_desc->findex) +
651 (cpu_to_le32(tab_desc->entry_size) * (idx));
652 descr = (struct uni_data_desc *)&unirom[offs];
653
654 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
655
656 if (adapter->fw->size < data_size)
657 return -EINVAL;
658
659 return 0;
660 }
661
662 static int
663 netxen_nic_validate_fw(struct netxen_adapter *adapter)
664 {
665 struct uni_table_desc *tab_desc;
666 struct uni_data_desc *descr;
667 const u8 *unirom = adapter->fw->data;
668 __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
669 NX_UNI_FIRMWARE_IDX_OFF));
670 u32 offs;
671 u32 tab_size;
672 u32 data_size;
673
674 tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
675
676 if (!tab_desc)
677 return -EINVAL;
678
679 tab_size = cpu_to_le32(tab_desc->findex) +
680 (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
681
682 if (adapter->fw->size < tab_size)
683 return -EINVAL;
684
685 offs = cpu_to_le32(tab_desc->findex) +
686 (cpu_to_le32(tab_desc->entry_size) * (idx));
687 descr = (struct uni_data_desc *)&unirom[offs];
688 data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
689
690 if (adapter->fw->size < data_size)
691 return -EINVAL;
692
693 return 0;
694 }
695
696
697 static int
698 netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
699 {
700 struct uni_table_desc *ptab_descr;
701 const u8 *unirom = adapter->fw->data;
702 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
703 1 : netxen_p3_has_mn(adapter);
704 __le32 entries;
705 __le32 entry_size;
706 u32 tab_size;
707 u32 i;
708
709 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
710 if (ptab_descr == NULL)
711 return -EINVAL;
712
713 entries = cpu_to_le32(ptab_descr->num_entries);
714 entry_size = cpu_to_le32(ptab_descr->entry_size);
715 tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
716
717 if (adapter->fw->size < tab_size)
718 return -EINVAL;
719
720 nomn:
721 for (i = 0; i < entries; i++) {
722
723 __le32 flags, file_chiprev, offs;
724 u8 chiprev = adapter->ahw.revision_id;
725 uint32_t flagbit;
726
727 offs = cpu_to_le32(ptab_descr->findex) +
728 (i * cpu_to_le32(ptab_descr->entry_size));
729 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
730 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
731 NX_UNI_CHIP_REV_OFF));
732
733 flagbit = mn_present ? 1 : 2;
734
735 if ((chiprev == file_chiprev) &&
736 ((1ULL << flagbit) & flags)) {
737 adapter->file_prd_off = offs;
738 return 0;
739 }
740 }
741
742 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
743 mn_present = 0;
744 goto nomn;
745 }
746
747 return -EINVAL;
748 }
749
750 static int
751 netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
752 {
753 if (netxen_nic_validate_header(adapter)) {
754 dev_err(&adapter->pdev->dev,
755 "unified image: header validation failed\n");
756 return -EINVAL;
757 }
758
759 if (netxen_nic_validate_product_offs(adapter)) {
760 dev_err(&adapter->pdev->dev,
761 "unified image: product validation failed\n");
762 return -EINVAL;
763 }
764
765 if (netxen_nic_validate_bootld(adapter)) {
766 dev_err(&adapter->pdev->dev,
767 "unified image: bootld validation failed\n");
768 return -EINVAL;
769 }
770
771 if (netxen_nic_validate_fw(adapter)) {
772 dev_err(&adapter->pdev->dev,
773 "unified image: firmware validation failed\n");
774 return -EINVAL;
775 }
776
777 return 0;
778 }
779
780 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
781 u32 section, u32 idx_offset)
782 {
783 const u8 *unirom = adapter->fw->data;
784 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
785 idx_offset));
786 struct uni_table_desc *tab_desc;
787 __le32 offs;
788
789 tab_desc = nx_get_table_desc(unirom, section);
790
791 if (tab_desc == NULL)
792 return NULL;
793
794 offs = cpu_to_le32(tab_desc->findex) +
795 (cpu_to_le32(tab_desc->entry_size) * idx);
796
797 return (struct uni_data_desc *)&unirom[offs];
798 }
799
800 static u8 *
801 nx_get_bootld_offs(struct netxen_adapter *adapter)
802 {
803 u32 offs = NETXEN_BOOTLD_START;
804
805 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
806 offs = cpu_to_le32((nx_get_data_desc(adapter,
807 NX_UNI_DIR_SECT_BOOTLD,
808 NX_UNI_BOOTLD_IDX_OFF))->findex);
809
810 return (u8 *)&adapter->fw->data[offs];
811 }
812
813 static u8 *
814 nx_get_fw_offs(struct netxen_adapter *adapter)
815 {
816 u32 offs = NETXEN_IMAGE_START;
817
818 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
819 offs = cpu_to_le32((nx_get_data_desc(adapter,
820 NX_UNI_DIR_SECT_FW,
821 NX_UNI_FIRMWARE_IDX_OFF))->findex);
822
823 return (u8 *)&adapter->fw->data[offs];
824 }
825
826 static __le32
827 nx_get_fw_size(struct netxen_adapter *adapter)
828 {
829 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
830 return cpu_to_le32((nx_get_data_desc(adapter,
831 NX_UNI_DIR_SECT_FW,
832 NX_UNI_FIRMWARE_IDX_OFF))->size);
833 else
834 return cpu_to_le32(
835 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
836 }
837
838 static __le32
839 nx_get_fw_version(struct netxen_adapter *adapter)
840 {
841 struct uni_data_desc *fw_data_desc;
842 const struct firmware *fw = adapter->fw;
843 __le32 major, minor, sub;
844 const u8 *ver_str;
845 int i, ret = 0;
846
847 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
848
849 fw_data_desc = nx_get_data_desc(adapter,
850 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
851 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
852 cpu_to_le32(fw_data_desc->size) - 17;
853
854 for (i = 0; i < 12; i++) {
855 if (!strncmp(&ver_str[i], "REV=", 4)) {
856 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
857 &major, &minor, &sub);
858 break;
859 }
860 }
861
862 if (ret != 3)
863 return 0;
864
865 return major + (minor << 8) + (sub << 16);
866
867 } else
868 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
869 }
870
871 static __le32
872 nx_get_bios_version(struct netxen_adapter *adapter)
873 {
874 const struct firmware *fw = adapter->fw;
875 __le32 bios_ver, prd_off = adapter->file_prd_off;
876
877 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
878 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
879 + NX_UNI_BIOS_VERSION_OFF));
880 return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
881 (bios_ver >> 24);
882 } else
883 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
884
885 }
886
887 int
888 netxen_need_fw_reset(struct netxen_adapter *adapter)
889 {
890 u32 count, old_count;
891 u32 val, version, major, minor, build;
892 int i, timeout;
893 u8 fw_type;
894
895 /* NX2031 firmware doesn't support heartbit */
896 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
897 return 1;
898
899 if (adapter->need_fw_reset)
900 return 1;
901
902 /* last attempt had failed */
903 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
904 return 1;
905
906 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
907
908 for (i = 0; i < 10; i++) {
909
910 timeout = msleep_interruptible(200);
911 if (timeout) {
912 NXWR32(adapter, CRB_CMDPEG_STATE,
913 PHAN_INITIALIZE_FAILED);
914 return -EINTR;
915 }
916
917 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
918 if (count != old_count)
919 break;
920 }
921
922 /* firmware is dead */
923 if (count == old_count)
924 return 1;
925
926 /* check if we have got newer or different file firmware */
927 if (adapter->fw) {
928
929 val = nx_get_fw_version(adapter);
930
931 version = NETXEN_DECODE_VERSION(val);
932
933 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
934 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
935 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
936
937 if (version > NETXEN_VERSION_CODE(major, minor, build))
938 return 1;
939
940 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
941 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
942
943 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
944 fw_type = (val & 0x4) ?
945 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
946
947 if (adapter->fw_type != fw_type)
948 return 1;
949 }
950 }
951
952 return 0;
953 }
954
955 #define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505)
956
957 int
958 netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
959 {
960 u32 flash_fw_ver, min_fw_ver;
961
962 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
963 return 0;
964
965 if (netxen_rom_fast_read(adapter,
966 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
967 dev_err(&adapter->pdev->dev, "Unable to read flash fw"
968 "version\n");
969 return -EIO;
970 }
971
972 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
973 min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
974 if (flash_fw_ver >= min_fw_ver)
975 return 0;
976
977 dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
978 "[4.0.505]. Please update firmware on flash\n",
979 _major(flash_fw_ver), _minor(flash_fw_ver),
980 _build(flash_fw_ver));
981 return -EINVAL;
982 }
983
984 static char *fw_name[] = {
985 NX_P2_MN_ROMIMAGE_NAME,
986 NX_P3_CT_ROMIMAGE_NAME,
987 NX_P3_MN_ROMIMAGE_NAME,
988 NX_UNIFIED_ROMIMAGE_NAME,
989 NX_FLASH_ROMIMAGE_NAME,
990 };
991
992 int
993 netxen_load_firmware(struct netxen_adapter *adapter)
994 {
995 u64 *ptr64;
996 u32 i, flashaddr, size;
997 const struct firmware *fw = adapter->fw;
998 struct pci_dev *pdev = adapter->pdev;
999
1000 dev_info(&pdev->dev, "loading firmware from %s\n",
1001 fw_name[adapter->fw_type]);
1002
1003 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1004 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
1005
1006 if (fw) {
1007 __le64 data;
1008
1009 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1010
1011 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
1012 flashaddr = NETXEN_BOOTLD_START;
1013
1014 for (i = 0; i < size; i++) {
1015 data = cpu_to_le64(ptr64[i]);
1016
1017 if (adapter->pci_mem_write(adapter, flashaddr, data))
1018 return -EIO;
1019
1020 flashaddr += 8;
1021 }
1022
1023 size = (__force u32)nx_get_fw_size(adapter) / 8;
1024
1025 ptr64 = (u64 *)nx_get_fw_offs(adapter);
1026 flashaddr = NETXEN_IMAGE_START;
1027
1028 for (i = 0; i < size; i++) {
1029 data = cpu_to_le64(ptr64[i]);
1030
1031 if (adapter->pci_mem_write(adapter,
1032 flashaddr, data))
1033 return -EIO;
1034
1035 flashaddr += 8;
1036 }
1037
1038 size = (__force u32)nx_get_fw_size(adapter) % 8;
1039 if (size) {
1040 data = cpu_to_le64(ptr64[i]);
1041
1042 if (adapter->pci_mem_write(adapter,
1043 flashaddr, data))
1044 return -EIO;
1045 }
1046
1047 } else {
1048 u64 data;
1049 u32 hi, lo;
1050
1051 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
1052 flashaddr = NETXEN_BOOTLD_START;
1053
1054 for (i = 0; i < size; i++) {
1055 if (netxen_rom_fast_read(adapter,
1056 flashaddr, (int *)&lo) != 0)
1057 return -EIO;
1058 if (netxen_rom_fast_read(adapter,
1059 flashaddr + 4, (int *)&hi) != 0)
1060 return -EIO;
1061
1062 /* hi, lo are already in host endian byteorder */
1063 data = (((u64)hi << 32) | lo);
1064
1065 if (adapter->pci_mem_write(adapter,
1066 flashaddr, data))
1067 return -EIO;
1068
1069 flashaddr += 8;
1070 }
1071 }
1072 msleep(1);
1073
1074 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
1075 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
1076 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
1077 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1078 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
1079 else {
1080 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
1081 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
1082 }
1083
1084 return 0;
1085 }
1086
1087 static int
1088 netxen_validate_firmware(struct netxen_adapter *adapter)
1089 {
1090 __le32 val;
1091 __le32 flash_fw_ver;
1092 u32 file_fw_ver, min_ver, bios;
1093 struct pci_dev *pdev = adapter->pdev;
1094 const struct firmware *fw = adapter->fw;
1095 u8 fw_type = adapter->fw_type;
1096 u32 crbinit_fix_fw;
1097
1098 if (fw_type == NX_UNIFIED_ROMIMAGE) {
1099 if (netxen_nic_validate_unified_romimage(adapter))
1100 return -EINVAL;
1101 } else {
1102 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
1103 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
1104 return -EINVAL;
1105
1106 if (fw->size < NX_FW_MIN_SIZE)
1107 return -EINVAL;
1108 }
1109
1110 val = nx_get_fw_version(adapter);
1111
1112 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1113 min_ver = NETXEN_MIN_P3_FW_SUPP;
1114 else
1115 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
1116
1117 file_fw_ver = NETXEN_DECODE_VERSION(val);
1118
1119 if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
1120 (file_fw_ver < min_ver)) {
1121 dev_err(&pdev->dev,
1122 "%s: firmware version %d.%d.%d unsupported\n",
1123 fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
1124 _build(file_fw_ver));
1125 return -EINVAL;
1126 }
1127 val = nx_get_bios_version(adapter);
1128 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
1129 if ((__force u32)val != bios) {
1130 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1131 fw_name[fw_type]);
1132 return -EINVAL;
1133 }
1134
1135 if (netxen_rom_fast_read(adapter,
1136 NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
1137 dev_err(&pdev->dev, "Unable to read flash fw version\n");
1138 return -EIO;
1139 }
1140 flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
1141
1142 /* New fw from file is not allowed, if fw on flash is < 4.0.554 */
1143 crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
1144 if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
1145 NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1146 dev_err(&pdev->dev, "Incompatibility detected between driver "
1147 "and firmware version on flash. This configuration "
1148 "is not recommended. Please update the firmware on "
1149 "flash immediately\n");
1150 return -EINVAL;
1151 }
1152
1153 /* check if flashed firmware is newer only for no-mn and P2 case*/
1154 if (!netxen_p3_has_mn(adapter) ||
1155 NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1156 if (flash_fw_ver > file_fw_ver) {
1157 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1158 fw_name[fw_type]);
1159 return -EINVAL;
1160 }
1161 }
1162
1163 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
1164 return 0;
1165 }
1166
1167 static void
1168 nx_get_next_fwtype(struct netxen_adapter *adapter)
1169 {
1170 u8 fw_type;
1171
1172 switch (adapter->fw_type) {
1173 case NX_UNKNOWN_ROMIMAGE:
1174 fw_type = NX_UNIFIED_ROMIMAGE;
1175 break;
1176
1177 case NX_UNIFIED_ROMIMAGE:
1178 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1179 fw_type = NX_FLASH_ROMIMAGE;
1180 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1181 fw_type = NX_P2_MN_ROMIMAGE;
1182 else if (netxen_p3_has_mn(adapter))
1183 fw_type = NX_P3_MN_ROMIMAGE;
1184 else
1185 fw_type = NX_P3_CT_ROMIMAGE;
1186 break;
1187
1188 case NX_P3_MN_ROMIMAGE:
1189 fw_type = NX_P3_CT_ROMIMAGE;
1190 break;
1191
1192 case NX_P2_MN_ROMIMAGE:
1193 case NX_P3_CT_ROMIMAGE:
1194 default:
1195 fw_type = NX_FLASH_ROMIMAGE;
1196 break;
1197 }
1198
1199 adapter->fw_type = fw_type;
1200 }
1201
1202 static int
1203 netxen_p3_has_mn(struct netxen_adapter *adapter)
1204 {
1205 u32 capability, flashed_ver;
1206 capability = 0;
1207
1208 /* NX2031 always had MN */
1209 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1210 return 1;
1211
1212 netxen_rom_fast_read(adapter,
1213 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1214 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1215
1216 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1217
1218 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1219 if (capability & NX_PEG_TUNE_MN_PRESENT)
1220 return 1;
1221 }
1222 return 0;
1223 }
1224
1225 void netxen_request_firmware(struct netxen_adapter *adapter)
1226 {
1227 struct pci_dev *pdev = adapter->pdev;
1228 int rc = 0;
1229
1230 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1231
1232 next:
1233 nx_get_next_fwtype(adapter);
1234
1235 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1236 adapter->fw = NULL;
1237 } else {
1238 rc = request_firmware(&adapter->fw,
1239 fw_name[adapter->fw_type], &pdev->dev);
1240 if (rc != 0)
1241 goto next;
1242
1243 rc = netxen_validate_firmware(adapter);
1244 if (rc != 0) {
1245 release_firmware(adapter->fw);
1246 msleep(1);
1247 goto next;
1248 }
1249 }
1250 }
1251
1252
1253 void
1254 netxen_release_firmware(struct netxen_adapter *adapter)
1255 {
1256 release_firmware(adapter->fw);
1257 adapter->fw = NULL;
1258 }
1259
1260 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1261 {
1262 u64 addr;
1263 u32 hi, lo;
1264
1265 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1266 return 0;
1267
1268 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1269 NETXEN_HOST_DUMMY_DMA_SIZE,
1270 &adapter->dummy_dma.phys_addr);
1271 if (adapter->dummy_dma.addr == NULL) {
1272 dev_err(&adapter->pdev->dev,
1273 "ERROR: Could not allocate dummy DMA memory\n");
1274 return -ENOMEM;
1275 }
1276
1277 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1278 hi = (addr >> 32) & 0xffffffff;
1279 lo = addr & 0xffffffff;
1280
1281 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1282 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1283
1284 return 0;
1285 }
1286
1287 /*
1288 * NetXen DMA watchdog control:
1289 *
1290 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1291 * Bit 1 : disable_request => 1 req disable dma watchdog
1292 * Bit 2 : enable_request => 1 req enable dma watchdog
1293 * Bit 3-31 : unused
1294 */
1295 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1296 {
1297 int i = 100;
1298 u32 ctrl;
1299
1300 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1301 return;
1302
1303 if (!adapter->dummy_dma.addr)
1304 return;
1305
1306 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1307 if ((ctrl & 0x1) != 0) {
1308 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1309
1310 while ((ctrl & 0x1) != 0) {
1311
1312 msleep(50);
1313
1314 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1315
1316 if (--i == 0)
1317 break;
1318 }
1319 }
1320
1321 if (i) {
1322 pci_free_consistent(adapter->pdev,
1323 NETXEN_HOST_DUMMY_DMA_SIZE,
1324 adapter->dummy_dma.addr,
1325 adapter->dummy_dma.phys_addr);
1326 adapter->dummy_dma.addr = NULL;
1327 } else
1328 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1329 }
1330
1331 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1332 {
1333 u32 val = 0;
1334 int retries = 60;
1335
1336 if (pegtune_val)
1337 return 0;
1338
1339 do {
1340 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1341 switch (val) {
1342 case PHAN_INITIALIZE_COMPLETE:
1343 case PHAN_INITIALIZE_ACK:
1344 return 0;
1345 case PHAN_INITIALIZE_FAILED:
1346 goto out_err;
1347 default:
1348 break;
1349 }
1350
1351 msleep(500);
1352
1353 } while (--retries);
1354
1355 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1356
1357 out_err:
1358 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1359 return -EIO;
1360 }
1361
1362 static int
1363 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1364 {
1365 u32 val = 0;
1366 int retries = 2000;
1367
1368 do {
1369 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1370
1371 if (val == PHAN_PEG_RCV_INITIALIZED)
1372 return 0;
1373
1374 msleep(10);
1375
1376 } while (--retries);
1377
1378 if (!retries) {
1379 printk(KERN_ERR "Receive Peg initialization not "
1380 "complete, state: 0x%x.\n", val);
1381 return -EIO;
1382 }
1383
1384 return 0;
1385 }
1386
1387 int netxen_init_firmware(struct netxen_adapter *adapter)
1388 {
1389 int err;
1390
1391 err = netxen_receive_peg_ready(adapter);
1392 if (err)
1393 return err;
1394
1395 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1396 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1397 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1398
1399 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1400 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1401
1402 return err;
1403 }
1404
1405 static void
1406 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1407 {
1408 u32 cable_OUI;
1409 u16 cable_len;
1410 u16 link_speed;
1411 u8 link_status, module, duplex, autoneg;
1412 struct net_device *netdev = adapter->netdev;
1413
1414 adapter->has_link_events = 1;
1415
1416 cable_OUI = msg->body[1] & 0xffffffff;
1417 cable_len = (msg->body[1] >> 32) & 0xffff;
1418 link_speed = (msg->body[1] >> 48) & 0xffff;
1419
1420 link_status = msg->body[2] & 0xff;
1421 duplex = (msg->body[2] >> 16) & 0xff;
1422 autoneg = (msg->body[2] >> 24) & 0xff;
1423
1424 module = (msg->body[2] >> 8) & 0xff;
1425 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1426 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1427 netdev->name, cable_OUI, cable_len);
1428 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1429 printk(KERN_INFO "%s: unsupported cable length %d\n",
1430 netdev->name, cable_len);
1431 }
1432
1433 /* update link parameters */
1434 if (duplex == LINKEVENT_FULL_DUPLEX)
1435 adapter->link_duplex = DUPLEX_FULL;
1436 else
1437 adapter->link_duplex = DUPLEX_HALF;
1438 adapter->module_type = module;
1439 adapter->link_autoneg = autoneg;
1440 adapter->link_speed = link_speed;
1441
1442 netxen_advert_link_change(adapter, link_status);
1443 }
1444
1445 static void
1446 netxen_handle_fw_message(int desc_cnt, int index,
1447 struct nx_host_sds_ring *sds_ring)
1448 {
1449 nx_fw_msg_t msg;
1450 struct status_desc *desc;
1451 int i = 0, opcode;
1452
1453 while (desc_cnt > 0 && i < 8) {
1454 desc = &sds_ring->desc_head[index];
1455 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1456 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1457
1458 index = get_next_index(index, sds_ring->num_desc);
1459 desc_cnt--;
1460 }
1461
1462 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1463 switch (opcode) {
1464 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1465 netxen_handle_linkevent(sds_ring->adapter, &msg);
1466 break;
1467 default:
1468 break;
1469 }
1470 }
1471
1472 static int
1473 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1474 struct nx_host_rds_ring *rds_ring,
1475 struct netxen_rx_buffer *buffer)
1476 {
1477 struct sk_buff *skb;
1478 dma_addr_t dma;
1479 struct pci_dev *pdev = adapter->pdev;
1480
1481 buffer->skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size);
1482 if (!buffer->skb)
1483 return 1;
1484
1485 skb = buffer->skb;
1486
1487 if (!adapter->ahw.cut_through)
1488 skb_reserve(skb, 2);
1489
1490 dma = pci_map_single(pdev, skb->data,
1491 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1492
1493 if (pci_dma_mapping_error(pdev, dma)) {
1494 dev_kfree_skb_any(skb);
1495 buffer->skb = NULL;
1496 return 1;
1497 }
1498
1499 buffer->skb = skb;
1500 buffer->dma = dma;
1501 buffer->state = NETXEN_BUFFER_BUSY;
1502
1503 return 0;
1504 }
1505
1506 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1507 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1508 {
1509 struct netxen_rx_buffer *buffer;
1510 struct sk_buff *skb;
1511
1512 buffer = &rds_ring->rx_buf_arr[index];
1513
1514 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1515 PCI_DMA_FROMDEVICE);
1516
1517 skb = buffer->skb;
1518 if (!skb)
1519 goto no_skb;
1520
1521 if (likely((adapter->netdev->features & NETIF_F_RXCSUM)
1522 && cksum == STATUS_CKSUM_OK)) {
1523 adapter->stats.csummed++;
1524 skb->ip_summed = CHECKSUM_UNNECESSARY;
1525 } else
1526 skb->ip_summed = CHECKSUM_NONE;
1527
1528 buffer->skb = NULL;
1529 no_skb:
1530 buffer->state = NETXEN_BUFFER_FREE;
1531 return skb;
1532 }
1533
1534 static struct netxen_rx_buffer *
1535 netxen_process_rcv(struct netxen_adapter *adapter,
1536 struct nx_host_sds_ring *sds_ring,
1537 int ring, u64 sts_data0)
1538 {
1539 struct net_device *netdev = adapter->netdev;
1540 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1541 struct netxen_rx_buffer *buffer;
1542 struct sk_buff *skb;
1543 struct nx_host_rds_ring *rds_ring;
1544 int index, length, cksum, pkt_offset;
1545
1546 if (unlikely(ring >= adapter->max_rds_rings))
1547 return NULL;
1548
1549 rds_ring = &recv_ctx->rds_rings[ring];
1550
1551 index = netxen_get_sts_refhandle(sts_data0);
1552 if (unlikely(index >= rds_ring->num_desc))
1553 return NULL;
1554
1555 buffer = &rds_ring->rx_buf_arr[index];
1556
1557 length = netxen_get_sts_totallength(sts_data0);
1558 cksum = netxen_get_sts_status(sts_data0);
1559 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1560
1561 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1562 if (!skb)
1563 return buffer;
1564
1565 if (length > rds_ring->skb_size)
1566 skb_put(skb, rds_ring->skb_size);
1567 else
1568 skb_put(skb, length);
1569
1570
1571 if (pkt_offset)
1572 skb_pull(skb, pkt_offset);
1573
1574 skb->protocol = eth_type_trans(skb, netdev);
1575
1576 napi_gro_receive(&sds_ring->napi, skb);
1577
1578 adapter->stats.rx_pkts++;
1579 adapter->stats.rxbytes += length;
1580
1581 return buffer;
1582 }
1583
1584 #define TCP_HDR_SIZE 20
1585 #define TCP_TS_OPTION_SIZE 12
1586 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1587
1588 static struct netxen_rx_buffer *
1589 netxen_process_lro(struct netxen_adapter *adapter,
1590 struct nx_host_sds_ring *sds_ring,
1591 int ring, u64 sts_data0, u64 sts_data1)
1592 {
1593 struct net_device *netdev = adapter->netdev;
1594 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1595 struct netxen_rx_buffer *buffer;
1596 struct sk_buff *skb;
1597 struct nx_host_rds_ring *rds_ring;
1598 struct iphdr *iph;
1599 struct tcphdr *th;
1600 bool push, timestamp;
1601 int l2_hdr_offset, l4_hdr_offset;
1602 int index;
1603 u16 lro_length, length, data_offset;
1604 u32 seq_number;
1605 u8 vhdr_len = 0;
1606
1607 if (unlikely(ring > adapter->max_rds_rings))
1608 return NULL;
1609
1610 rds_ring = &recv_ctx->rds_rings[ring];
1611
1612 index = netxen_get_lro_sts_refhandle(sts_data0);
1613 if (unlikely(index > rds_ring->num_desc))
1614 return NULL;
1615
1616 buffer = &rds_ring->rx_buf_arr[index];
1617
1618 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1619 lro_length = netxen_get_lro_sts_length(sts_data0);
1620 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1621 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1622 push = netxen_get_lro_sts_push_flag(sts_data0);
1623 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1624
1625 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1626 if (!skb)
1627 return buffer;
1628
1629 if (timestamp)
1630 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1631 else
1632 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1633
1634 skb_put(skb, lro_length + data_offset);
1635
1636 skb_pull(skb, l2_hdr_offset);
1637 skb->protocol = eth_type_trans(skb, netdev);
1638
1639 if (skb->protocol == htons(ETH_P_8021Q))
1640 vhdr_len = VLAN_HLEN;
1641 iph = (struct iphdr *)(skb->data + vhdr_len);
1642 th = (struct tcphdr *)((skb->data + vhdr_len) + (iph->ihl << 2));
1643
1644 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1645 csum_replace2(&iph->check, iph->tot_len, htons(length));
1646 iph->tot_len = htons(length);
1647 th->psh = push;
1648 th->seq = htonl(seq_number);
1649
1650 length = skb->len;
1651
1652 if (adapter->flags & NETXEN_FW_MSS_CAP)
1653 skb_shinfo(skb)->gso_size = netxen_get_lro_sts_mss(sts_data1);
1654
1655 netif_receive_skb(skb);
1656
1657 adapter->stats.lro_pkts++;
1658 adapter->stats.rxbytes += length;
1659
1660 return buffer;
1661 }
1662
1663 #define netxen_merge_rx_buffers(list, head) \
1664 do { list_splice_tail_init(list, head); } while (0);
1665
1666 int
1667 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1668 {
1669 struct netxen_adapter *adapter = sds_ring->adapter;
1670
1671 struct list_head *cur;
1672
1673 struct status_desc *desc;
1674 struct netxen_rx_buffer *rxbuf;
1675
1676 u32 consumer = sds_ring->consumer;
1677
1678 int count = 0;
1679 u64 sts_data0, sts_data1;
1680 int opcode, ring = 0, desc_cnt;
1681
1682 while (count < max) {
1683 desc = &sds_ring->desc_head[consumer];
1684 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1685
1686 if (!(sts_data0 & STATUS_OWNER_HOST))
1687 break;
1688
1689 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1690
1691 opcode = netxen_get_sts_opcode(sts_data0);
1692
1693 switch (opcode) {
1694 case NETXEN_NIC_RXPKT_DESC:
1695 case NETXEN_OLD_RXPKT_DESC:
1696 case NETXEN_NIC_SYN_OFFLOAD:
1697 ring = netxen_get_sts_type(sts_data0);
1698 rxbuf = netxen_process_rcv(adapter, sds_ring,
1699 ring, sts_data0);
1700 break;
1701 case NETXEN_NIC_LRO_DESC:
1702 ring = netxen_get_lro_sts_type(sts_data0);
1703 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1704 rxbuf = netxen_process_lro(adapter, sds_ring,
1705 ring, sts_data0, sts_data1);
1706 break;
1707 case NETXEN_NIC_RESPONSE_DESC:
1708 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1709 default:
1710 goto skip;
1711 }
1712
1713 WARN_ON(desc_cnt > 1);
1714
1715 if (rxbuf)
1716 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1717
1718 skip:
1719 for (; desc_cnt > 0; desc_cnt--) {
1720 desc = &sds_ring->desc_head[consumer];
1721 desc->status_desc_data[0] =
1722 cpu_to_le64(STATUS_OWNER_PHANTOM);
1723 consumer = get_next_index(consumer, sds_ring->num_desc);
1724 }
1725 count++;
1726 }
1727
1728 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1729 struct nx_host_rds_ring *rds_ring =
1730 &adapter->recv_ctx.rds_rings[ring];
1731
1732 if (!list_empty(&sds_ring->free_list[ring])) {
1733 list_for_each(cur, &sds_ring->free_list[ring]) {
1734 rxbuf = list_entry(cur,
1735 struct netxen_rx_buffer, list);
1736 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1737 }
1738 spin_lock(&rds_ring->lock);
1739 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1740 &rds_ring->free_list);
1741 spin_unlock(&rds_ring->lock);
1742 }
1743
1744 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1745 }
1746
1747 if (count) {
1748 sds_ring->consumer = consumer;
1749 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1750 }
1751
1752 return count;
1753 }
1754
1755 /* Process Command status ring */
1756 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1757 {
1758 u32 sw_consumer, hw_consumer;
1759 int count = 0, i;
1760 struct netxen_cmd_buffer *buffer;
1761 struct pci_dev *pdev = adapter->pdev;
1762 struct net_device *netdev = adapter->netdev;
1763 struct netxen_skb_frag *frag;
1764 int done = 0;
1765 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1766
1767 if (!spin_trylock(&adapter->tx_clean_lock))
1768 return 1;
1769
1770 sw_consumer = tx_ring->sw_consumer;
1771 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1772
1773 while (sw_consumer != hw_consumer) {
1774 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1775 if (buffer->skb) {
1776 frag = &buffer->frag_array[0];
1777 pci_unmap_single(pdev, frag->dma, frag->length,
1778 PCI_DMA_TODEVICE);
1779 frag->dma = 0ULL;
1780 for (i = 1; i < buffer->frag_count; i++) {
1781 frag++; /* Get the next frag */
1782 pci_unmap_page(pdev, frag->dma, frag->length,
1783 PCI_DMA_TODEVICE);
1784 frag->dma = 0ULL;
1785 }
1786
1787 adapter->stats.xmitfinished++;
1788 dev_kfree_skb_any(buffer->skb);
1789 buffer->skb = NULL;
1790 }
1791
1792 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1793 if (++count >= MAX_STATUS_HANDLE)
1794 break;
1795 }
1796
1797 if (count && netif_running(netdev)) {
1798 tx_ring->sw_consumer = sw_consumer;
1799
1800 smp_mb();
1801
1802 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
1803 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1804 netif_wake_queue(netdev);
1805 adapter->tx_timeo_cnt = 0;
1806 }
1807 /*
1808 * If everything is freed up to consumer then check if the ring is full
1809 * If the ring is full then check if more needs to be freed and
1810 * schedule the call back again.
1811 *
1812 * This happens when there are 2 CPUs. One could be freeing and the
1813 * other filling it. If the ring is full when we get out of here and
1814 * the card has already interrupted the host then the host can miss the
1815 * interrupt.
1816 *
1817 * There is still a possible race condition and the host could miss an
1818 * interrupt. The card has to take care of this.
1819 */
1820 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1821 done = (sw_consumer == hw_consumer);
1822 spin_unlock(&adapter->tx_clean_lock);
1823
1824 return done;
1825 }
1826
1827 void
1828 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1829 struct nx_host_rds_ring *rds_ring)
1830 {
1831 struct rcv_desc *pdesc;
1832 struct netxen_rx_buffer *buffer;
1833 int producer, count = 0;
1834 netxen_ctx_msg msg = 0;
1835 struct list_head *head;
1836
1837 producer = rds_ring->producer;
1838
1839 head = &rds_ring->free_list;
1840 while (!list_empty(head)) {
1841
1842 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1843
1844 if (!buffer->skb) {
1845 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1846 break;
1847 }
1848
1849 count++;
1850 list_del(&buffer->list);
1851
1852 /* make a rcv descriptor */
1853 pdesc = &rds_ring->desc_head[producer];
1854 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1855 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1856 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1857
1858 producer = get_next_index(producer, rds_ring->num_desc);
1859 }
1860
1861 if (count) {
1862 rds_ring->producer = producer;
1863 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1864 (producer-1) & (rds_ring->num_desc-1));
1865
1866 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1867 /*
1868 * Write a doorbell msg to tell phanmon of change in
1869 * receive ring producer
1870 * Only for firmware version < 4.0.0
1871 */
1872 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1873 netxen_set_msg_privid(msg);
1874 netxen_set_msg_count(msg,
1875 ((producer - 1) &
1876 (rds_ring->num_desc - 1)));
1877 netxen_set_msg_ctxid(msg, adapter->portnum);
1878 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1879 NXWRIO(adapter, DB_NORMALIZE(adapter,
1880 NETXEN_RCV_PRODUCER_OFFSET), msg);
1881 }
1882 }
1883 }
1884
1885 static void
1886 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1887 struct nx_host_rds_ring *rds_ring)
1888 {
1889 struct rcv_desc *pdesc;
1890 struct netxen_rx_buffer *buffer;
1891 int producer, count = 0;
1892 struct list_head *head;
1893
1894 if (!spin_trylock(&rds_ring->lock))
1895 return;
1896
1897 producer = rds_ring->producer;
1898
1899 head = &rds_ring->free_list;
1900 while (!list_empty(head)) {
1901
1902 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1903
1904 if (!buffer->skb) {
1905 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1906 break;
1907 }
1908
1909 count++;
1910 list_del(&buffer->list);
1911
1912 /* make a rcv descriptor */
1913 pdesc = &rds_ring->desc_head[producer];
1914 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1915 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1916 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1917
1918 producer = get_next_index(producer, rds_ring->num_desc);
1919 }
1920
1921 if (count) {
1922 rds_ring->producer = producer;
1923 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1924 (producer - 1) & (rds_ring->num_desc - 1));
1925 }
1926 spin_unlock(&rds_ring->lock);
1927 }
1928
1929 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1930 {
1931 memset(&adapter->stats, 0, sizeof(adapter->stats));
1932 }
1933
Linux kernel - Deliverables
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