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