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[linux-2.6-block.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
CommitLineData
3d396eb1 1/*
5d242f1c 2 * Copyright (C) 2003 - 2009 NetXen, Inc.
13af7a6e 3 * Copyright (C) 2009 - QLogic Corporation.
3d396eb1 4 * All rights reserved.
80922fbc 5 *
3d396eb1
AK		 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.
80922fbc 10 *
3d396eb1
AK		 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.
80922fbc 15 *
3d396eb1 16 * You should have received a copy of the GNU General Public License
0ab75ae8 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
80922fbc 18 *
3d396eb1 19 * The full GNU General Public License is included in this distribution
4d21fef4 20 * in the file called "COPYING".
80922fbc 21 *
3d396eb1
AK		 22 */
23
5a0e3ad6 24#include <linux/slab.h>
cb8011ad 25#include <linux/vmalloc.h>
e98e3350 26#include <linux/interrupt.h>
3d396eb1
AK		 27#include "netxen_nic_hw.h"
28
29#include "netxen_nic.h"
3d396eb1 30
1494a814 31#include <linux/dma-mapping.h>
391587c3 32#include <linux/if_vlan.h>
c9bdd4b5 33#include <net/ip.h>
00977784 34#include <linux/ipv6.h>
6598b169 35#include <linux/inetdevice.h>
0531d7b8 36#include <linux/sysfs.h>
e87ad553 37#include <linux/aer.h>
1494a814 38
0438a1b2 39MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 40MODULE_LICENSE("GPL");
41MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 42MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 43
ceded32f 44char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 45static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 46 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 47
2956640d
DP		 48static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
49
50/* Default to restricted 1G auto-neg mode */
51static int wol_port_mode = 5;
52
53static int use_msi = 1;
54
55static int use_msi_x = 1;
56
afdafff1
SH		 57static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
58module_param(auto_fw_reset, int, 0644);
59MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 60
c3f9c88c 61static int netxen_nic_probe(struct pci_dev *pdev,
2956640d 62 const struct pci_device_id *ent);
c3f9c88c 63static void netxen_nic_remove(struct pci_dev *pdev);
3d396eb1
AK		 64static int netxen_nic_open(struct net_device *netdev);
65static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 66static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
3d396eb1 68static void netxen_tx_timeout(struct net_device *netdev);
74c520da 69static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 70static void netxen_fw_poll_work(struct work_struct *work);
71static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 74static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 75#ifdef CONFIG_NET_POLL_CONTROLLER
76static void netxen_nic_poll_controller(struct net_device *netdev);
77#endif
fa3ce355
NK		 78
79static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 81static void netxen_create_diag_entries(struct netxen_adapter *adapter);
82static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
e87ad553 83static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 84static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
85static int netxen_can_start_firmware(struct netxen_adapter *adapter);
86
1494a814 87static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 88static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 89static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 90
8a7fbfab 91static void netxen_free_ip_list(struct netxen_adapter *, bool);
57569d0e 92static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
47fd428c 93static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
94 struct rtnl_link_stats64 *stats);
7e12bb0a 95static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 96
3d396eb1 97/* PCI Device ID Table */
70081ac5 98#define ENTRY(device) \
040dec3b 99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
9baa3c34 102static const struct pci_device_id netxen_pci_tbl[] = {
040dec3b
DP		 103 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
104 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
105 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
106 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
110 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 111 {0,}
112};
113
114MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
115
7830b22c
DP		 116static uint32_t crb_cmd_producer[4] = {
117 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
118 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
119};
120
c9fc891f 121void
3ce06a32 122netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 123 struct nx_host_tx_ring *tx_ring)
3176ff3e 124{
195c5f98 125 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 126}
127
7830b22c
DP		 128static uint32_t crb_cmd_consumer[4] = {
129 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
130 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
131};
132
3ce06a32
DP		 133static inline void
134netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 135 struct nx_host_tx_ring *tx_ring)
3176ff3e 136{
195c5f98 137 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 138}
139
2956640d 140static uint32_t msi_tgt_status[8] = {
443be796 141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 145};
146
2956640d
DP		 147static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
148
d8b100c5 149static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 150{
d8b100c5
DP		 151 struct netxen_adapter *adapter = sds_ring->adapter;
152
195c5f98 153 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 154}
155
d8b100c5 156static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 157{
d8b100c5
DP		 158 struct netxen_adapter *adapter = sds_ring->adapter;
159
195c5f98 160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 161
092bc571 162 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 163 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 164}
165
71dcddbd
DP		 166static int
167netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
168{
169 int size = sizeof(struct nx_host_sds_ring) * count;
170
171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
172
807540ba 173 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 174}
175
d8b100c5 176static void
71dcddbd
DP		 177netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
178{
de701762 179 kfree(recv_ctx->sds_rings);
232e7d68 180 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 181}
182
183static int
d8b100c5
DP		 184netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
185{
186 int ring;
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
189
71dcddbd 190 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 191 return -ENOMEM;
71dcddbd 192
d8b100c5
DP		 193 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
194 sds_ring = &recv_ctx->sds_rings[ring];
195 netif_napi_add(netdev, &sds_ring->napi,
1e4a5282 196 netxen_nic_poll, NAPI_POLL_WEIGHT);
d8b100c5 197 }
71dcddbd
DP		 198
199 return 0;
d8b100c5
DP		 200}
201
232e7d68
DP		 202static void
203netxen_napi_del(struct netxen_adapter *adapter)
204{
205 int ring;
206 struct nx_host_sds_ring *sds_ring;
207 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
208
209 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
210 sds_ring = &recv_ctx->sds_rings[ring];
211 netif_napi_del(&sds_ring->napi);
212 }
213
214 netxen_free_sds_rings(&adapter->recv_ctx);
215}
216
d8b100c5
DP		 217static void
218netxen_napi_enable(struct netxen_adapter *adapter)
219{
220 int ring;
221 struct nx_host_sds_ring *sds_ring;
222 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
223
224 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
225 sds_ring = &recv_ctx->sds_rings[ring];
226 napi_enable(&sds_ring->napi);
227 netxen_nic_enable_int(sds_ring);
228 }
229}
230
231static void
232netxen_napi_disable(struct netxen_adapter *adapter)
233{
234 int ring;
235 struct nx_host_sds_ring *sds_ring;
236 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
237
238 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
239 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 240 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 241 napi_synchronize(&sds_ring->napi);
242 napi_disable(&sds_ring->napi);
d8b100c5
DP		 243 }
244}
245
50c643e7 246static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 247{
248 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 249 uint64_t mask, cmask;
250
251 adapter->pci_using_dac = 0;
2956640d 252
6afd142f 253 mask = DMA_BIT_MASK(32);
6afd142f 254 cmask = DMA_BIT_MASK(32);
1f434f63 255
50c643e7 256 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 257#ifndef CONFIG_IA64
6afd142f 258 mask = DMA_BIT_MASK(35);
1f434f63 259#endif
50c643e7
DP		 260 } else {
261 mask = DMA_BIT_MASK(39);
262 cmask = mask;
263 }
264
2956640d 265 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 266 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 267 adapter->pci_using_dac = 1;
268 return 0;
269 }
2956640d 270
1f434f63
DP		 271 return -EIO;
272}
273
274/* Update addressable range if firmware supports it */
275static int
276nx_update_dma_mask(struct netxen_adapter *adapter)
277{
278 int change, shift, err;
50c643e7 279 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 280 struct pci_dev *pdev = adapter->pdev;
281
282 change = 0;
283
f98a9f69 284 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 285 if (shift > 32)
1f434f63
DP		 286 return 0;
287
288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
289 change = 1;
290 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
291 change = 1;
292
293 if (change) {
294 old_mask = pdev->dma_mask;
50c643e7
DP		 295 old_cmask = pdev->dev.coherent_dma_mask;
296
f60f7856 297 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 298
299 err = pci_set_dma_mask(pdev, mask);
300 if (err)
50c643e7
DP		 301 goto err_out;
302
303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
304
305 err = pci_set_consistent_dma_mask(pdev, mask);
306 if (err)
307 goto err_out;
308 }
309 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 310 }
311
2956640d 312 return 0;
50c643e7
DP		 313
314err_out:
315 pci_set_dma_mask(pdev, old_mask);
316 pci_set_consistent_dma_mask(pdev, old_cmask);
317 return err;
2956640d
DP		 318}
319
2956640d
DP		 320static int
321netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
322{
27c915a4 323 u32 val, timeout;
2956640d
DP		 324
325 if (first_boot == 0x55555555) {
326 /* This is the first boot after power up */
f98a9f69 327 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 328
329 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
330 return 0;
2956640d
DP		 331
332 /* PCI bus master workaround */
f98a9f69 333 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 334 if (!(first_boot & 0x4)) {
335 first_boot |= 0x4;
f98a9f69 336 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 337 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 338 }
339
340 /* This is the first boot after power up */
f98a9f69 341 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 342 if (first_boot != 0x80000f) {
343 /* clear the register for future unloads/loads */
f98a9f69 344 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 345 return -EIO;
2956640d
DP		 346 }
347
27c915a4 348 /* Start P2 boot loader */
f98a9f69
DP		 349 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
350 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 351 timeout = 0;
352 do {
353 msleep(1);
f98a9f69 354 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 355
356 if (++timeout > 5000)
357 return -EIO;
358
359 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 360 }
27c915a4 361 return 0;
2956640d
DP		 362}
363
364static void netxen_set_port_mode(struct netxen_adapter *adapter)
365{
366 u32 val, data;
367
1e2d0059 368 val = adapter->ahw.board_type;
2956640d
DP		 369 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
370 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
371 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
372 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 373 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 374 } else if (port_mode == NETXEN_PORT_MODE_XG) {
375 data = NETXEN_PORT_MODE_XG;
f98a9f69 376 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 377 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
378 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 380 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
381 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 383 } else {
384 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 386 }
387
388 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
389 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
390 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
391 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
392 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
393 }
f98a9f69 394 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 395 }
396}
397
e3feb266
RB		 398#define PCI_CAP_ID_GEN 0x10
399
400static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
401{
402 u32 pdevfuncsave;
403 u32 c8c9value = 0;
404 u32 chicken = 0;
405 u32 control = 0;
406 int i, pos;
407 struct pci_dev *pdev;
408
409 pdev = adapter->pdev;
410
411 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
412 /* clear chicken3.25:24 */
413 chicken &= 0xFCFFFFFF;
414 /*
415 * if gen1 and B0, set F1020 - if gen 2, do nothing
416 * if gen2 set to F1000
417 */
418 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
419 if (pos == 0xC0) {
420 pci_read_config_dword(pdev, pos + 0x10, &control);
421 if ((control & 0x000F0000) != 0x00020000) {
422 /* set chicken3.24 if gen1 */
423 chicken |= 0x01000000;
424 }
425 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
426 c8c9value = 0xF1000;
427 } else {
428 /* set chicken3.24 if gen1 */
429 chicken |= 0x01000000;
430 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
431 if (adapter->ahw.revision_id == NX_P3_B0)
432 c8c9value = 0xF1020;
433 else
434 c8c9value = 0;
435 }
436
437 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
438
439 if (!c8c9value)
440 return;
441
442 pdevfuncsave = pdev->devfn;
443 if (pdevfuncsave & 0x07)
444 return;
445
446 for (i = 0; i < 8; i++) {
447 pci_read_config_dword(pdev, pos + 8, &control);
448 pci_read_config_dword(pdev, pos + 8, &control);
449 pci_write_config_dword(pdev, pos + 8, c8c9value);
450 pdev->devfn++;
451 }
452 pdev->devfn = pdevfuncsave;
453}
454
2956640d
DP		 455static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
456{
457 u32 control;
2956640d 458
b83082e9
YW		 459 if (pdev->msix_cap) {
460 pci_read_config_dword(pdev, pdev->msix_cap, &control);
2956640d
DP		 461 if (enable)
462 control |= PCI_MSIX_FLAGS_ENABLE;
463 else
464 control = 0;
b83082e9 465 pci_write_config_dword(pdev, pdev->msix_cap, control);
2956640d
DP		 466 }
467}
468
be339aee 469static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 470{
471 int i;
472
be339aee 473 for (i = 0; i < count; i++)
2956640d
DP		 474 adapter->msix_entries[i].entry = i;
475}
476
9dc28efe
DP		 477static int
478netxen_read_mac_addr(struct netxen_adapter *adapter)
479{
480 int i;
481 unsigned char *p;
a03d2451 482 u64 mac_addr;
9dc28efe
DP		 483 struct net_device *netdev = adapter->netdev;
484 struct pci_dev *pdev = adapter->pdev;
485
9dc28efe
DP		 486 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
487 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
488 return -EIO;
489 } else {
490 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
491 return -EIO;
492 }
493
494 p = (unsigned char *)&mac_addr;
495 for (i = 0; i < 6; i++)
496 netdev->dev_addr[i] = *(p + 5 - i);
497
5d09e534 498 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 499
500 /* set station address */
501
aaeb6cdf 502 if (!is_valid_ether_addr(netdev->dev_addr))
e174961c 503 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 504
505 return 0;
506}
507
7e12bb0a 508static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 509{
510 struct netxen_adapter *adapter = netdev_priv(netdev);
511 struct sockaddr *addr = p;
512
513 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 514 return -EADDRNOTAVAIL;
3d0a3cc9
DP		 515
516 if (netif_running(netdev)) {
517 netif_device_detach(netdev);
518 netxen_napi_disable(adapter);
519 }
520
5d09e534 521 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 522 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
523 adapter->macaddr_set(adapter, addr->sa_data);
524
525 if (netif_running(netdev)) {
526 netif_device_attach(netdev);
527 netxen_napi_enable(adapter);
528 }
529 return 0;
530}
531
1abd266f
SH		 532static void netxen_set_multicast_list(struct net_device *dev)
533{
534 struct netxen_adapter *adapter = netdev_priv(dev);
535
3d0a3cc9 536 adapter->set_multi(dev);
1abd266f
SH		 537}
538
c8f44aff
MM		 539static netdev_features_t netxen_fix_features(struct net_device *dev,
540 netdev_features_t features)
066413da
MM		 541{
542 if (!(features & NETIF_F_RXCSUM)) {
543 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
544
545 features &= ~NETIF_F_LRO;
546 }
547
548 return features;
549}
550
c8f44aff
MM		 551static int netxen_set_features(struct net_device *dev,
552 netdev_features_t features)
066413da
MM		 553{
554 struct netxen_adapter *adapter = netdev_priv(dev);
555 int hw_lro;
556
557 if (!((dev->features ^ features) & NETIF_F_LRO))
558 return 0;
559
560 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
561 : NETXEN_NIC_LRO_DISABLED;
562
563 if (netxen_config_hw_lro(adapter, hw_lro))
564 return -EIO;
565
566 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
567 return -EIO;
568
569 return 0;
570}
571
1abd266f
SH		 572static const struct net_device_ops netxen_netdev_ops = {
573 .ndo_open = netxen_nic_open,
574 .ndo_stop = netxen_nic_close,
575 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 576 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f 577 .ndo_validate_addr = eth_validate_addr,
afc4b13d 578 .ndo_set_rx_mode = netxen_set_multicast_list,
1abd266f
SH		 579 .ndo_set_mac_address = netxen_nic_set_mac,
580 .ndo_change_mtu = netxen_nic_change_mtu,
581 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 582 .ndo_fix_features = netxen_fix_features,
583 .ndo_set_features = netxen_set_features,
1abd266f
SH		 584#ifdef CONFIG_NET_POLL_CONTROLLER
585 .ndo_poll_controller = netxen_nic_poll_controller,
586#endif
587};
588
b37eb210
MC		 589static inline bool netxen_function_zero(struct pci_dev *pdev)
590{
591 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
592}
593
594static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
595 u32 mode)
596{
597 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
598}
599
600static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
601{
602 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
603}
604
97daee83 605static void
a120e864 606netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
97daee83
DP		 607{
608 struct netxen_legacy_intr_set *legacy_intrp;
a120e864 609 u32 tgt_status_reg, int_state_reg;
97daee83
DP		 610
611 if (adapter->ahw.revision_id >= NX_P3_B0)
612 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
613 else
614 legacy_intrp = &legacy_intr[0];
195c5f98 615
a120e864
MC		 616 tgt_status_reg = legacy_intrp->tgt_status_reg;
617 int_state_reg = ISR_INT_STATE_REG;
618
195c5f98 619 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
a120e864 620 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
195c5f98 621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
a120e864 622 legacy_intrp->tgt_mask_reg);
195c5f98 623 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
a120e864 624 legacy_intrp->pci_int_reg);
195c5f98
AKS		 625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626
627 if (adapter->ahw.revision_id >= NX_P3_B1)
628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864 629 int_state_reg);
195c5f98
AKS		 630 else
631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864
MC		 632 CRB_INT_VECTOR);
633}
97daee83 634
a120e864
MC		 635static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
636 int num_msix)
637{
638 struct pci_dev *pdev = adapter->pdev;
639 u32 value;
640 int err;
97daee83
DP		 641
642 if (adapter->msix_supported) {
be339aee 643 netxen_init_msix_entries(adapter, num_msix);
4a6768d3
AG		 644 err = pci_enable_msix_range(pdev, adapter->msix_entries,
645 num_msix, num_msix);
646 if (err > 0) {
be339aee
DP		 647 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
648 netxen_set_msix_bit(pdev, 1);
97daee83 649
be339aee
DP		 650 if (adapter->rss_supported)
651 adapter->max_sds_rings = num_msix;
97daee83 652
be339aee 653 dev_info(&pdev->dev, "using msi-x interrupts\n");
a120e864 654 return 0;
be339aee 655 }
be339aee 656 /* fall through for msi */
97daee83 657 }
be339aee
DP		 658
659 if (use_msi && !pci_enable_msi(pdev)) {
a120e864 660 value = msi_tgt_status[adapter->ahw.pci_func];
be339aee 661 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
a120e864 662 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
f67f3408 663 adapter->msix_entries[0].vector = pdev->irq;
a120e864
MC		 664 dev_info(&pdev->dev, "using msi interrupts\n");
665 return 0;
be339aee
DP		 666 }
667
b37eb210 668 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
a120e864
MC		 669 return -EIO;
670}
671
b37eb210 672static int netxen_setup_intr(struct netxen_adapter *adapter)
a120e864
MC		 673{
674 struct pci_dev *pdev = adapter->pdev;
675 int num_msix;
676
677 if (adapter->rss_supported)
678 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
679 MSIX_ENTRIES_PER_ADAPTER : 2;
680 else
681 num_msix = 1;
682
683 adapter->max_sds_rings = 1;
684 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
685
686 netxen_initialize_interrupt_registers(adapter);
687 netxen_set_msix_bit(pdev, 0);
688
b37eb210
MC		 689 if (netxen_function_zero(pdev)) {
690 if (!netxen_setup_msi_interrupts(adapter, num_msix))
691 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
692 else
693 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
694 } else {
695 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
696 netxen_setup_msi_interrupts(adapter, num_msix)) {
697 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
698 return -EIO;
699 }
700 }
a120e864 701
b37eb210
MC		 702 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
703 adapter->msix_entries[0].vector = pdev->irq;
704 dev_info(&pdev->dev, "using legacy interrupts\n");
705 }
706 return 0;
97daee83
DP		 707}
708
709static void
710netxen_teardown_intr(struct netxen_adapter *adapter)
711{
712 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
713 pci_disable_msix(adapter->pdev);
714 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
715 pci_disable_msi(adapter->pdev);
716}
717
718static void
719netxen_cleanup_pci_map(struct netxen_adapter *adapter)
720{
721 if (adapter->ahw.db_base != NULL)
722 iounmap(adapter->ahw.db_base);
723 if (adapter->ahw.pci_base0 != NULL)
724 iounmap(adapter->ahw.pci_base0);
725 if (adapter->ahw.pci_base1 != NULL)
726 iounmap(adapter->ahw.pci_base1);
727 if (adapter->ahw.pci_base2 != NULL)
728 iounmap(adapter->ahw.pci_base2);
729}
730
731static int
732netxen_setup_pci_map(struct netxen_adapter *adapter)
733{
97daee83
DP		 734 void __iomem *db_ptr = NULL;
735
71fb62fb 736 resource_size_t mem_base, db_base;
afbe5cd6 737 unsigned long mem_len, db_len = 0;
97daee83
DP		 738
739 struct pci_dev *pdev = adapter->pdev;
740 int pci_func = adapter->ahw.pci_func;
afbe5cd6 741 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 742
743 int err = 0;
744
745 /*
746 * Set the CRB window to invalid. If any register in window 0 is
747 * accessed it should set the window to 0 and then reset it to 1.
748 */
907fa120 749 adapter->ahw.crb_win = -1;
47abe356 750 adapter->ahw.ocm_win = -1;
97daee83
DP		 751
752 /* remap phys address */
753 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
754 mem_len = pci_resource_len(pdev, 0);
97daee83 755
97daee83
DP		 756 /* 128 Meg of memory */
757 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 758
759 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
760 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 761 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 762 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 763 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 764 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
765 ahw->pci_base2 == NULL) {
766 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
767 err = -EIO;
768 goto err_out;
769 }
770
771 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
772
97daee83 773 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 774
775 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
776 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 777 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 778 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
779 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
780 err = -EIO;
781 goto err_out;
782 }
783
97daee83 784 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 785
afbe5cd6
AKS		 786 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
787 if (ahw->pci_base0 == NULL) {
97daee83
DP		 788 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
789 return -EIO;
790 }
afbe5cd6 791 ahw->pci_len0 = mem_len;
97daee83
DP		 792 } else {
793 return -EIO;
794 }
795
195c5f98
AKS		 796 netxen_setup_hwops(adapter);
797
97daee83
DP		 798 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
799
6abb4b83
AKS		 800 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
801 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
802 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
803
804 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 805 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
806 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
807 }
808
97daee83
DP		 809 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
810 goto skip_doorbell;
811
812 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
813 db_len = pci_resource_len(pdev, 4);
814
815 if (db_len == 0) {
816 printk(KERN_ERR "%s: doorbell is disabled\n",
817 netxen_nic_driver_name);
818 err = -EIO;
819 goto err_out;
820 }
821
822 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
823 if (!db_ptr) {
824 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
825 netxen_nic_driver_name);
826 err = -EIO;
827 goto err_out;
828 }
829
830skip_doorbell:
831 adapter->ahw.db_base = db_ptr;
832 adapter->ahw.db_len = db_len;
833 return 0;
834
835err_out:
836 netxen_cleanup_pci_map(adapter);
837 return err;
838}
839
2b9e62ee
DP		 840static void
841netxen_check_options(struct netxen_adapter *adapter)
842{
83f18a55 843 u32 fw_major, fw_minor, fw_build, prev_fw_version;
2b9e62ee
DP		 844 char brd_name[NETXEN_MAX_SHORT_NAME];
845 char serial_num[32];
83f18a55 846 int i, offset, val, err;
06d6c108 847 __le32 *ptr32;
2b9e62ee
DP		 848 struct pci_dev *pdev = adapter->pdev;
849
850 adapter->driver_mismatch = 0;
851
06d6c108 852 ptr32 = (__le32 *)&serial_num;
2b9e62ee
DP		 853 offset = NX_FW_SERIAL_NUM_OFFSET;
854 for (i = 0; i < 8; i++) {
855 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
856 dev_err(&pdev->dev, "error reading board info\n");
857 adapter->driver_mismatch = 1;
858 return;
859 }
860 ptr32[i] = cpu_to_le32(val);
861 offset += sizeof(u32);
862 }
863
864 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
865 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
866 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 867 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 868 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
869
83f18a55
M		 870 /* Get FW Mini Coredump template and store it */
871 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
872 if (adapter->mdump.md_template == NULL ||
873 adapter->fw_version > prev_fw_version) {
874 kfree(adapter->mdump.md_template);
875 adapter->mdump.md_template = NULL;
876 err = netxen_setup_minidump(adapter);
877 if (err)
878 dev_err(&adapter->pdev->dev,
879 "Failed to setup minidump rcode = %d\n", err);
880 }
881 }
882
2b9e62ee 883 if (adapter->portnum == 0) {
b08a92bb
MC		 884 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
885 brd_name))
886 strcpy(serial_num, "Unknown");
2b9e62ee 887
c25c0b9b
DP		 888 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
889 module_name(THIS_MODULE),
2b9e62ee
DP		 890 brd_name, serial_num, adapter->ahw.revision_id);
891 }
892
893 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
894 adapter->driver_mismatch = 1;
895 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
896 fw_major, fw_minor, fw_build);
897 return;
898 }
899
900 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
901 i = NXRD32(adapter, NETXEN_SRE_MISC);
902 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
903 }
904
dc7551cb
MC		 905 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
906 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
907 adapter->ahw.cut_through ? "cut-through" : "legacy");
2b9e62ee
DP		 908
909 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
910 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
911
2b9e62ee
DP		 912 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
913 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
914 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
915 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
916 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
917 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
918 }
919
920 adapter->msix_supported = 0;
921 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
922 adapter->msix_supported = !!use_msi_x;
923 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 924 } else {
925 u32 flashed_ver = 0;
926 netxen_rom_fast_read(adapter,
927 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
928 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
929
930 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
931 switch (adapter->ahw.board_type) {
932 case NETXEN_BRDTYPE_P2_SB31_10G:
933 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
934 adapter->msix_supported = !!use_msi_x;
935 adapter->rss_supported = !!use_msi_x;
936 break;
937 default:
938 break;
939 }
2b9e62ee
DP		 940 }
941 }
942
943 adapter->num_txd = MAX_CMD_DESCRIPTORS;
944
945 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
946 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
947 adapter->max_rds_rings = 3;
948 } else {
949 adapter->num_lro_rxd = 0;
950 adapter->max_rds_rings = 2;
951 }
952}
953
ba599d4f 954static int
6a581e93 955netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 956{
957 int val, err, first_boot;
958 struct pci_dev *pdev = adapter->pdev;
959
2b9e62ee
DP		 960 /* required for NX2031 dummy dma */
961 err = nx_set_dma_mask(adapter);
962 if (err)
963 return err;
964
83f18a55
M		 965 err = netxen_can_start_firmware(adapter);
966
967 if (err < 0)
968 return err;
969
970 if (!err)
96f2ebd2 971 goto wait_init;
0b72e659 972
f98a9f69 973 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 974
975 err = netxen_check_hw_init(adapter, first_boot);
976 if (err) {
977 dev_err(&pdev->dev, "error in init HW init sequence\n");
978 return err;
979 }
980
6a581e93 981 netxen_request_firmware(adapter);
f7185c71 982
67c38fc6 983 err = netxen_need_fw_reset(adapter);
1dbc84a7 984 if (err < 0)
db4cfd8a 985 goto err_out;
1dbc84a7 986 if (err == 0)
e3feb266 987 goto pcie_strap_init;
67c38fc6 988
ba599d4f 989 if (first_boot != 0x55555555) {
f98a9f69 990 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 991 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 992 msleep(1);
993 }
567c6c4e 994
f98a9f69 995 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 996 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
997 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
998
567c6c4e
DP		 999 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1000 netxen_set_port_mode(adapter);
1001
db4cfd8a
DP		 1002 err = netxen_load_firmware(adapter);
1003 if (err)
1004 goto err_out;
ba599d4f 1005
6a581e93
DP		 1006 netxen_release_firmware(adapter);
1007
ba599d4f
DP		 1008 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1009
1010 /* Initialize multicast addr pool owners */
1011 val = 0x7654;
1e2d0059 1012 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 1013 val |= 0x0f000000;
f98a9f69 1014 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 1015
1016 }
1017
83ac51fa 1018 err = netxen_init_dummy_dma(adapter);
ba599d4f 1019 if (err)
db4cfd8a 1020 goto err_out;
ba599d4f
DP		 1021
1022 /*
1023 * Tell the hardware our version number.
1024 */
1025 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1026 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1027 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 1028 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 1029
e3feb266
RB		 1030pcie_strap_init:
1031 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1032 netxen_pcie_strap_init(adapter);
1033
96f2ebd2 1034wait_init:
ba599d4f
DP		 1035 /* Handshake with the card before we register the devices. */
1036 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1037 if (err) {
83ac51fa 1038 netxen_free_dummy_dma(adapter);
db4cfd8a 1039 goto err_out;
ba599d4f
DP		 1040 }
1041
8f9b3f69
AKS		 1042 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1043
68b3cae0
DP		 1044 nx_update_dma_mask(adapter);
1045
6a581e93 1046 netxen_check_options(adapter);
68b3cae0 1047
74c520da
AKS		 1048 adapter->need_fw_reset = 0;
1049
ec5c50cb 1050 /* fall through and release firmware */
db4cfd8a
DP		 1051
1052err_out:
1053 netxen_release_firmware(adapter);
1054 return err;
ba599d4f
DP		 1055}
1056
9f5bc7f1
DP		 1057static int
1058netxen_nic_request_irq(struct netxen_adapter *adapter)
1059{
1060 irq_handler_t handler;
d8b100c5
DP		 1061 struct nx_host_sds_ring *sds_ring;
1062 int err, ring;
1063
ab392d2d 1064 unsigned long flags = 0;
9f5bc7f1 1065 struct net_device *netdev = adapter->netdev;
d8b100c5 1066 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1067
9f5bc7f1
DP		 1068 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1069 handler = netxen_msix_intr;
1070 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1071 handler = netxen_msi_intr;
1072 else {
1073 flags |= IRQF_SHARED;
1074 handler = netxen_intr;
1075 }
1076 adapter->irq = netdev->irq;
1077
d8b100c5
DP		 1078 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1079 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1080 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1081 err = request_irq(sds_ring->irq, handler,
1082 flags, sds_ring->name, sds_ring);
1083 if (err)
1084 return err;
1085 }
1086
1087 return 0;
1088}
1089
1090static void
1091netxen_nic_free_irq(struct netxen_adapter *adapter)
1092{
1093 int ring;
1094 struct nx_host_sds_ring *sds_ring;
1095
1096 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1097
1098 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1099 sds_ring = &recv_ctx->sds_rings[ring];
1100 free_irq(sds_ring->irq, sds_ring);
1101 }
9f5bc7f1
DP		 1102}
1103
ca2ef330
DP		 1104static void
1105netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1106{
1107 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1108 adapter->coal.normal.data.rx_time_us =
1109 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1110 adapter->coal.normal.data.rx_packets =
1111 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1112 adapter->coal.normal.data.tx_time_us =
1113 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1114 adapter->coal.normal.data.tx_packets =
1115 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1116}
1117
6f771419 1118/* with rtnl_lock */
9f5bc7f1 1119static int
6f771419 1120__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1121{
1122 int err;
1123
db4cfd8a
DP		 1124 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1125 return -EIO;
1126
9f5bc7f1
DP		 1127 err = adapter->init_port(adapter, adapter->physical_port);
1128 if (err) {
1129 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1130 netxen_nic_driver_name, adapter->portnum);
1131 return err;
1132 }
3d0a3cc9 1133 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1134 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1135
3d0a3cc9
DP		 1136 adapter->set_multi(netdev);
1137 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1138
1139 adapter->ahw.linkup = 0;
9f5bc7f1 1140
d8b100c5
DP		 1141 if (adapter->max_sds_rings > 1)
1142 netxen_config_rss(adapter, 1);
9f5bc7f1 1143
ca2ef330
DP		 1144 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1145 netxen_config_intr_coalesce(adapter);
1146
e4baaf71 1147 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1148 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1149
b2af9cb0
DP		 1150 netxen_napi_enable(adapter);
1151
5103c9f7 1152 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1153 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1154 else
1155 netxen_nic_set_link_parameters(adapter);
1156
6a581e93 1157 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1158 return 0;
1159}
1160
6f771419
AKS		 1161/* Usage: During resume and firmware recovery module.*/
1162
1163static inline int
1164netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1165{
1166 int err = 0;
1167
1168 rtnl_lock();
1169 if (netif_running(netdev))
1170 err = __netxen_nic_up(adapter, netdev);
1171 rtnl_unlock();
1172
1173 return err;
1174}
1175
1176/* with rtnl_lock */
9f5bc7f1 1177static void
6f771419 1178__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1179{
db4cfd8a
DP		 1180 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1181 return;
1182
f2251f66
AKS		 1183 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1184 return;
6a581e93 1185
f2251f66 1186 smp_mb();
9f5bc7f1 1187 netif_carrier_off(netdev);
b2af9cb0 1188 netif_tx_disable(netdev);
9f5bc7f1 1189
d478af0d
SC		 1190 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1191 netxen_linkevent_request(adapter, 0);
1192
9f5bc7f1
DP		 1193 if (adapter->stop_port)
1194 adapter->stop_port(adapter);
1195
5cf4d323
DP		 1196 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1197 netxen_p3_free_mac_list(adapter);
1198
22b5794b
AKS		 1199 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1200
be339aee
DP		 1201 netxen_napi_disable(adapter);
1202
9f5bc7f1 1203 netxen_release_tx_buffers(adapter);
9f5bc7f1
DP		 1204}
1205
6f771419
AKS		 1206/* Usage: During suspend and firmware recovery module */
1207
1208static inline void
1209netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1210{
1211 rtnl_lock();
1212 if (netif_running(netdev))
1213 __netxen_nic_down(adapter, netdev);
1214 rtnl_unlock();
1215
1216}
9f5bc7f1
DP		 1217
1218static int
1219netxen_nic_attach(struct netxen_adapter *adapter)
1220{
1221 struct net_device *netdev = adapter->netdev;
1222 struct pci_dev *pdev = adapter->pdev;
becf46a0 1223 int err, ring;
d8b100c5 1224 struct nx_host_rds_ring *rds_ring;
d877f1e3 1225 struct nx_host_tx_ring *tx_ring;
01da0c2b 1226 u32 capab2;
9f5bc7f1 1227
7042cd8f
AKS		 1228 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1229 return 0;
1230
9f5bc7f1 1231 err = netxen_init_firmware(adapter);
232e7d68
DP		 1232 if (err)
1233 return err;
1234
01da0c2b
RB		 1235 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1236 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1237 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1238 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1239 adapter->flags |= NETXEN_FW_MSS_CAP;
1240 }
1241
232e7d68
DP		 1242 err = netxen_napi_add(adapter, netdev);
1243 if (err)
1244 return err;
9f5bc7f1 1245
9f5bc7f1
DP		 1246 err = netxen_alloc_sw_resources(adapter);
1247 if (err) {
1248 printk(KERN_ERR "%s: Error in setting sw resources\n",
1249 netdev->name);
1250 return err;
1251 }
1252
9f5bc7f1
DP		 1253 err = netxen_alloc_hw_resources(adapter);
1254 if (err) {
1255 printk(KERN_ERR "%s: Error in setting hw resources\n",
1256 netdev->name);
1257 goto err_out_free_sw;
1258 }
1259
4f96b988 1260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1261 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1262 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1263 crb_cmd_producer[adapter->portnum]);
1264 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1265 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1266
cb2107be
DP		 1267 tx_ring->producer = 0;
1268 tx_ring->sw_consumer = 0;
1269
1270 netxen_nic_update_cmd_producer(adapter, tx_ring);
1271 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1272 }
1273
d8b100c5
DP		 1274 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1275 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1276 netxen_post_rx_buffers(adapter, ring, rds_ring);
1277 }
9f5bc7f1
DP		 1278
1279 err = netxen_nic_request_irq(adapter);
1280 if (err) {
1281 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1282 netdev->name);
1283 goto err_out_free_rxbuf;
1284 }
1285
ca2ef330
DP		 1286 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1287 netxen_nic_init_coalesce_defaults(adapter);
1288
fa3ce355
NK		 1289 netxen_create_sysfs_entries(adapter);
1290
9f5bc7f1
DP		 1291 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1292 return 0;
1293
1294err_out_free_rxbuf:
1295 netxen_release_rx_buffers(adapter);
1296 netxen_free_hw_resources(adapter);
1297err_out_free_sw:
1298 netxen_free_sw_resources(adapter);
1299 return err;
1300}
1301
1302static void
1303netxen_nic_detach(struct netxen_adapter *adapter)
1304{
7042cd8f
AKS		 1305 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1306 return;
1307
fa3ce355
NK		 1308 netxen_remove_sysfs_entries(adapter);
1309
9f5bc7f1 1310 netxen_free_hw_resources(adapter);
cf981ffb 1311 netxen_release_rx_buffers(adapter);
be339aee 1312 netxen_nic_free_irq(adapter);
232e7d68 1313 netxen_napi_del(adapter);
9f5bc7f1
DP		 1314 netxen_free_sw_resources(adapter);
1315
1316 adapter->is_up = 0;
1317}
1318
7042cd8f
AKS		 1319int
1320netxen_nic_reset_context(struct netxen_adapter *adapter)
1321{
1322 int err = 0;
1323 struct net_device *netdev = adapter->netdev;
1324
6a581e93
DP		 1325 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1326 return -EBUSY;
1327
7042cd8f
AKS		 1328 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1329
6a581e93
DP		 1330 netif_device_detach(netdev);
1331
7042cd8f 1332 if (netif_running(netdev))
6f771419 1333 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1334
1335 netxen_nic_detach(adapter);
1336
6a581e93
DP		 1337 if (netif_running(netdev)) {
1338 err = netxen_nic_attach(adapter);
1339 if (!err)
6f771419 1340 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1341
6a581e93
DP		 1342 if (err)
1343 goto done;
1344 }
1345
1346 netif_device_attach(netdev);
7042cd8f 1347 }
6a581e93 1348
7042cd8f 1349done:
6a581e93 1350 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1351 return err;
1352}
1353
f17443f4
DP		 1354static int
1355netxen_setup_netdev(struct netxen_adapter *adapter,
1356 struct net_device *netdev)
1357{
1358 int err = 0;
1359 struct pci_dev *pdev = adapter->pdev;
1360
f17443f4
DP		 1361 adapter->mc_enabled = 0;
1362 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1363 adapter->max_mc_count = 38;
1364 else
1365 adapter->max_mc_count = 16;
1366
1367 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1368 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1369
1370 netxen_nic_change_mtu(netdev, netdev->mtu);
1371
7ad24ea4 1372 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
f17443f4 1373
066413da
MM		 1374 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1375 NETIF_F_RXCSUM;
f17443f4 1376
066413da
MM		 1377 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1378 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1379
1380 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1381
1382 if (adapter->pci_using_dac) {
1383 netdev->features |= NETIF_F_HIGHDMA;
1384 netdev->vlan_features |= NETIF_F_HIGHDMA;
1385 }
1386
028afe71 1387 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
f646968f 1388 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
028afe71 1389
1bb482f8 1390 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1391 netdev->hw_features |= NETIF_F_LRO;
1392
1393 netdev->features |= netdev->hw_features;
1bb482f8 1394
f17443f4
DP		 1395 netdev->irq = adapter->msix_entries[0].vector;
1396
74c520da 1397 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1398
1399 if (netxen_read_mac_addr(adapter))
1400 dev_warn(&pdev->dev, "failed to read mac addr\n");
1401
1402 netif_carrier_off(netdev);
f17443f4
DP		 1403
1404 err = register_netdev(netdev);
1405 if (err) {
1406 dev_err(&pdev->dev, "failed to register net device\n");
1407 return err;
1408 }
1409
1410 return 0;
1411}
1412
5e7856b3
SS		 1413#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1414#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1415
1416static void netxen_read_ula_info(struct netxen_adapter *adapter)
1417{
1418 u32 temp;
1419
1420 /* Print ULA info only once for an adapter */
1421 if (adapter->portnum != 0)
1422 return;
1423
1424 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1425 switch (temp) {
1426 case NETXEN_ULA_ADAPTER_KEY:
1427 dev_info(&adapter->pdev->dev, "ULA adapter");
1428 break;
1429 case NETXEN_NON_ULA_ADAPTER_KEY:
1430 dev_info(&adapter->pdev->dev, "non ULA adapter");
1431 break;
1432 default:
1433 break;
1434 }
1435
1436 return;
1437}
1438
dce87b96 1439#ifdef CONFIG_PCIEAER
1440static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1441{
1442 struct pci_dev *pdev = adapter->pdev;
1443 struct pci_dev *root = pdev->bus->self;
1444 u32 aer_pos;
1445
e4d1aa40
NA		 1446 /* root bus? */
1447 if (!root)
1448 return;
1449
dce87b96 1450 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1451 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1452 return;
1453
62f87c0e 1454 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
dce87b96 1455 return;
1456
1457 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1458 if (!aer_pos)
1459 return;
1460
1461 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1462}
1463#endif
1464
c3f9c88c 1465static int
3d396eb1
AK		 1466netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1467{
1468 struct net_device *netdev = NULL;
1469 struct netxen_adapter *adapter = NULL;
2956640d 1470 int i = 0, err;
3176ff3e 1471 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1472 uint8_t revision_id;
5a6f95e6 1473 u32 val;
3d396eb1 1474
688328c7 1475 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
fe3881cf
JP		 1476 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1477 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1478 return -ENODEV;
1479 }
1480
3d396eb1
AK		 1481 if ((err = pci_enable_device(pdev)))
1482 return err;
2956640d 1483
3d396eb1
AK		 1484 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1485 err = -ENODEV;
1486 goto err_out_disable_pdev;
1487 }
1488
1489 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1490 goto err_out_disable_pdev;
1491
e87ad553
AKS		 1492 if (NX_IS_REVISION_P3(pdev->revision))
1493 pci_enable_pcie_error_reporting(pdev);
1494
3d396eb1 1495 pci_set_master(pdev);
3176ff3e
MT		 1496
1497 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1498 if(!netdev) {
f17443f4 1499 err = -ENOMEM;
3176ff3e
MT		 1500 goto err_out_free_res;
1501 }
1502
3176ff3e
MT		 1503 SET_NETDEV_DEV(netdev, &pdev->dev);
1504
4cf1653a 1505 adapter = netdev_priv(netdev);
2956640d
DP		 1506 adapter->netdev = netdev;
1507 adapter->pdev = pdev;
13ba9c77 1508 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1509
1510 revision_id = pdev->revision;
1511 adapter->ahw.revision_id = revision_id;
1512
f03b0ebd
DP		 1513 rwlock_init(&adapter->ahw.crb_lock);
1514 spin_lock_init(&adapter->ahw.mem_lock);
1515
d8b100c5 1516 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1517 INIT_LIST_HEAD(&adapter->mac_list);
8a7fbfab 1518 INIT_LIST_HEAD(&adapter->ip_list);
3ce06a32 1519
97daee83
DP		 1520 err = netxen_setup_pci_map(adapter);
1521 if (err)
6c80b18d 1522 goto err_out_free_netdev;
3d396eb1 1523
2d1a3bbd 1524 /* This will be reset for mezz cards */
3176ff3e 1525 adapter->portnum = pci_func_id;
3176ff3e 1526
f17443f4
DP		 1527 err = netxen_nic_get_board_info(adapter);
1528 if (err) {
1529 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1530 goto err_out_iounmap;
1531 }
6c80b18d 1532
dce87b96 1533#ifdef CONFIG_PCIEAER
1534 netxen_mask_aer_correctable(adapter);
1535#endif
1536
13ba9c77 1537 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1538 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1539 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1540 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1541 if (pci_func_id >= 2)
13ba9c77 1542 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1543 break;
1544 default:
1545 break;
1546 }
13ba9c77 1547
e933d019
AKS		 1548 err = netxen_check_flash_fw_compatibility(adapter);
1549 if (err)
1550 goto err_out_iounmap;
1551
5a6f95e6
RB		 1552 if (adapter->portnum == 0) {
1553 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1554 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1555 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1556 adapter->need_fw_reset = 1;
1557 }
1558 }
1559
6a581e93 1560 err = netxen_start_firmware(adapter);
0b72e659 1561 if (err)
8f9b3f69 1562 goto err_out_decr_ref;
f17443f4 1563
3d396eb1 1564 /*
6c80b18d 1565 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1566 */
dcd56fdb 1567 adapter->physical_port = adapter->portnum;
4f96b988 1568 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1569 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1570 if (i != 0x55555555)
1571 adapter->physical_port = i;
1572 }
6c80b18d 1573
6a581e93 1574 netxen_nic_clear_stats(adapter);
2956640d 1575
b37eb210
MC		 1576 err = netxen_setup_intr(adapter);
1577
1578 if (err) {
1579 dev_err(&adapter->pdev->dev,
1580 "Failed to setup interrupts, error = %d\n", err);
1581 goto err_out_disable_msi;
1582 }
2956640d 1583
5e7856b3
SS		 1584 netxen_read_ula_info(adapter);
1585
f17443f4 1586 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1587 if (err)
2956640d 1588 goto err_out_disable_msi;
6c80b18d
MT		 1589
1590 pci_set_drvdata(pdev, adapter);
3d396eb1 1591
6a581e93
DP		 1592 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1593
1e2d0059 1594 switch (adapter->ahw.port_type) {
2956640d
DP		 1595 case NETXEN_NIC_GBE:
1596 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1597 adapter->netdev->name);
1598 break;
1599 case NETXEN_NIC_XGBE:
1600 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1601 adapter->netdev->name);
1602 break;
3d396eb1 1603 }
3d396eb1 1604
70f9cf89
DP		 1605 netxen_create_diag_entries(adapter);
1606
2956640d
DP		 1607 return 0;
1608
1609err_out_disable_msi:
97daee83 1610 netxen_teardown_intr(adapter);
6c80b18d 1611
83ac51fa 1612 netxen_free_dummy_dma(adapter);
3d396eb1 1613
8f9b3f69 1614err_out_decr_ref:
6a581e93
DP		 1615 nx_decr_dev_ref_cnt(adapter);
1616
2956640d 1617err_out_iounmap:
97daee83 1618 netxen_cleanup_pci_map(adapter);
cb8011ad 1619
6c80b18d
MT		 1620err_out_free_netdev:
1621 free_netdev(netdev);
1622
1623err_out_free_res:
3d396eb1 1624 pci_release_regions(pdev);
6c80b18d
MT		 1625
1626err_out_disable_pdev:
3d396eb1
AK		 1627 pci_disable_device(pdev);
1628 return err;
1629}
1630
83f18a55
M		 1631static
1632void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1633{
1634 kfree(adapter->mdump.md_template);
1635 adapter->mdump.md_template = NULL;
1636
1637 if (adapter->mdump.md_capture_buff) {
1638 vfree(adapter->mdump.md_capture_buff);
1639 adapter->mdump.md_capture_buff = NULL;
1640 }
1641}
1642
c3f9c88c 1643static void netxen_nic_remove(struct pci_dev *pdev)
3d396eb1
AK		 1644{
1645 struct netxen_adapter *adapter;
3176ff3e 1646 struct net_device *netdev;
3d396eb1 1647
6c80b18d 1648 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1649 if (adapter == NULL)
1650 return;
1651
6c80b18d
MT		 1652 netdev = adapter->netdev;
1653
6a581e93
DP		 1654 netxen_cancel_fw_work(adapter);
1655
96acb6eb
DP		 1656 unregister_netdev(netdev);
1657
e424fa9d
AKS		 1658 cancel_work_sync(&adapter->tx_timeout_task);
1659
8a7fbfab 1660 netxen_free_ip_list(adapter, false);
7042cd8f 1661 netxen_nic_detach(adapter);
3d396eb1 1662
6a581e93
DP		 1663 nx_decr_dev_ref_cnt(adapter);
1664
439b454e 1665 if (adapter->portnum == 0)
83ac51fa 1666 netxen_free_dummy_dma(adapter);
96acb6eb 1667
6a581e93
DP		 1668 clear_bit(__NX_RESETTING, &adapter->state);
1669
97daee83 1670 netxen_teardown_intr(adapter);
b37eb210 1671 netxen_set_interrupt_mode(adapter, 0);
70f9cf89
DP		 1672 netxen_remove_diag_entries(adapter);
1673
97daee83 1674 netxen_cleanup_pci_map(adapter);
595e3fb8 1675
f7185c71
DP		 1676 netxen_release_firmware(adapter);
1677
83f18a55
M		 1678 if (NX_IS_REVISION_P3(pdev->revision)) {
1679 netxen_cleanup_minidump(adapter);
e87ad553 1680 pci_disable_pcie_error_reporting(pdev);
83f18a55 1681 }
e87ad553 1682
595e3fb8 1683 pci_release_regions(pdev);
3052246c 1684 pci_disable_device(pdev);
595e3fb8 1685
6c80b18d 1686 free_netdev(netdev);
3d396eb1 1687}
e87ad553
AKS		 1688
1689static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1690{
0b72e659
DP		 1691 struct net_device *netdev = adapter->netdev;
1692
1693 netif_device_detach(netdev);
1694
6a581e93
DP		 1695 netxen_cancel_fw_work(adapter);
1696
0b72e659
DP		 1697 if (netif_running(netdev))
1698 netxen_nic_down(adapter, netdev);
1699
e424fa9d
AKS		 1700 cancel_work_sync(&adapter->tx_timeout_task);
1701
7042cd8f 1702 netxen_nic_detach(adapter);
0b72e659 1703
22b5794b
AKS		 1704 if (adapter->portnum == 0)
1705 netxen_free_dummy_dma(adapter);
1706
6a581e93
DP		 1707 nx_decr_dev_ref_cnt(adapter);
1708
1709 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1710}
0b72e659 1711
e87ad553 1712static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1713{
1714 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1715 struct net_device *netdev = adapter->netdev;
1716 int err;
1717
0b72e659
DP		 1718 err = pci_enable_device(pdev);
1719 if (err)
1720 return err;
1721
bc86fcba
AKS		 1722 pci_set_power_state(pdev, PCI_D0);
1723 pci_set_master(pdev);
1724 pci_restore_state(pdev);
1725
907fa120 1726 adapter->ahw.crb_win = -1;
47abe356 1727 adapter->ahw.ocm_win = -1;
0b72e659 1728
6a581e93 1729 err = netxen_start_firmware(adapter);
0b72e659
DP		 1730 if (err) {
1731 dev_err(&pdev->dev, "failed to start firmware\n");
1732 return err;
1733 }
1734
1735 if (netif_running(netdev)) {
1736 err = netxen_nic_attach(adapter);
1737 if (err)
6a581e93 1738 goto err_out;
0b72e659
DP		 1739
1740 err = netxen_nic_up(adapter, netdev);
1741 if (err)
6a581e93 1742 goto err_out_detach;
0b72e659 1743
57569d0e 1744 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1745 }
1746
bc86fcba 1747 netif_device_attach(netdev);
6a581e93 1748 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1749 return 0;
6a581e93
DP		 1750
1751err_out_detach:
1752 netxen_nic_detach(adapter);
1753err_out:
1754 nx_decr_dev_ref_cnt(adapter);
1755 return err;
0b72e659 1756}
e87ad553
AKS		 1757
1758static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1759 pci_channel_state_t state)
1760{
1761 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1762
1763 if (state == pci_channel_io_perm_failure)
1764 return PCI_ERS_RESULT_DISCONNECT;
1765
1766 if (nx_dev_request_aer(adapter))
1767 return PCI_ERS_RESULT_RECOVERED;
1768
1769 netxen_nic_detach_func(adapter);
1770
1771 pci_disable_device(pdev);
1772
1773 return PCI_ERS_RESULT_NEED_RESET;
1774}
1775
1776static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1777{
1778 int err = 0;
1779
1780 err = netxen_nic_attach_func(pdev);
1781
1782 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1783}
1784
1785static void netxen_io_resume(struct pci_dev *pdev)
1786{
1787 pci_cleanup_aer_uncorrect_error_status(pdev);
1788}
1789
1790static void netxen_nic_shutdown(struct pci_dev *pdev)
1791{
1792 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1793
1794 netxen_nic_detach_func(adapter);
1795
1796 if (pci_save_state(pdev))
1797 return;
1798
1799 if (netxen_nic_wol_supported(adapter)) {
1800 pci_enable_wake(pdev, PCI_D3cold, 1);
1801 pci_enable_wake(pdev, PCI_D3hot, 1);
1802 }
1803
1804 pci_disable_device(pdev);
1805}
1806
1807#ifdef CONFIG_PM
1808static int
1809netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1810{
1811 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1812 int retval;
1813
1814 netxen_nic_detach_func(adapter);
1815
1816 retval = pci_save_state(pdev);
1817 if (retval)
1818 return retval;
1819
1820 if (netxen_nic_wol_supported(adapter)) {
1821 pci_enable_wake(pdev, PCI_D3cold, 1);
1822 pci_enable_wake(pdev, PCI_D3hot, 1);
1823 }
1824
1825 pci_disable_device(pdev);
1826 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1827
1828 return 0;
1829}
1830
1831static int
1832netxen_nic_resume(struct pci_dev *pdev)
1833{
1834 return netxen_nic_attach_func(pdev);
1835}
01542cd1 1836#endif
0b72e659 1837
3d396eb1
AK		 1838static int netxen_nic_open(struct net_device *netdev)
1839{
4cf1653a 1840 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1841 int err = 0;
3d396eb1 1842
dcd56fdb
DP		 1843 if (adapter->driver_mismatch)
1844 return -EIO;
1845
7042cd8f
AKS		 1846 err = netxen_nic_attach(adapter);
1847 if (err)
1848 return err;
2956640d 1849
6f771419 1850 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1851 if (err)
1852 goto err_out;
05aaa02d 1853
dcd56fdb 1854 netif_start_queue(netdev);
3d396eb1
AK		 1855
1856 return 0;
2956640d 1857
9f5bc7f1
DP		 1858err_out:
1859 netxen_nic_detach(adapter);
2956640d 1860 return err;
3d396eb1
AK		 1861}
1862
1863/*
1864 * netxen_nic_close - Disables a network interface entry point
1865 */
1866static int netxen_nic_close(struct net_device *netdev)
1867{
3176ff3e 1868 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1869
6f771419 1870 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1871 return 0;
1872}
1873
1bcfd790
DP		 1874static void
1875netxen_tso_check(struct net_device *netdev,
1876 struct nx_host_tx_ring *tx_ring,
1877 struct cmd_desc_type0 *first_desc,
1878 struct sk_buff *skb)
cd1f8160 1879{
391587c3 1880 u8 opcode = TX_ETHER_PKT;
cdff1036 1881 __be16 protocol = skb->protocol;
028afe71 1882 u16 flags = 0, vid = 0;
1bcfd790 1883 u32 producer;
028afe71 1884 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1885 struct cmd_desc_type0 *hwdesc;
028afe71 1886 struct vlan_ethhdr *vh;
cdff1036 1887
09640e63 1888 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1889
1890 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1891 protocol = vh->h_vlan_encapsulated_proto;
1892 flags = FLAGS_VLAN_TAGGED;
028afe71 1893
df8a39de 1894 } else if (skb_vlan_tag_present(skb)) {
028afe71 1895 flags = FLAGS_VLAN_OOB;
df8a39de 1896 vid = skb_vlan_tag_get(skb);
028afe71
DP		 1897 netxen_set_tx_vlan_tci(first_desc, vid);
1898 vlan_oob = 1;
cdff1036 1899 }
cd1f8160 1900
391587c3
DP		 1901 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1902 skb_shinfo(skb)->gso_size > 0) {
1903
1bcfd790
DP		 1904 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1905
1906 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1907 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1908 if (vlan_oob) {
1909 first_desc->total_hdr_length += VLAN_HLEN;
1910 first_desc->tcp_hdr_offset = VLAN_HLEN;
1911 first_desc->ip_hdr_offset = VLAN_HLEN;
1912 /* Only in case of TSO on vlan device */
1913 flags |= FLAGS_VLAN_TAGGED;
1914 }
391587c3 1915
09640e63 1916 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1917 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1918 tso = 1;
cd1f8160
DP		 1919
1920 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1921 u8 l4proto;
1922
09640e63 1923 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1924 l4proto = ip_hdr(skb)->protocol;
1925
1926 if (l4proto == IPPROTO_TCP)
1927 opcode = TX_TCP_PKT;
1928 else if(l4proto == IPPROTO_UDP)
1929 opcode = TX_UDP_PKT;
09640e63 1930 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1931 l4proto = ipv6_hdr(skb)->nexthdr;
1932
1933 if (l4proto == IPPROTO_TCP)
1934 opcode = TX_TCPV6_PKT;
1935 else if(l4proto == IPPROTO_UDP)
1936 opcode = TX_UDPV6_PKT;
1937 }
cd1f8160 1938 }
028afe71
DP		 1939
1940 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1941 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1942 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1943
1944 if (!tso)
1945 return;
1946
1947 /* For LSO, we need to copy the MAC/IP/TCP headers into
1948 * the descriptor ring
1949 */
1950 producer = tx_ring->producer;
1951 copied = 0;
1952 offset = 2;
1953
028afe71
DP		 1954 if (vlan_oob) {
1955 /* Create a TSO vlan header template for firmware */
1956
1957 hwdesc = &tx_ring->desc_head[producer];
1958 tx_ring->cmd_buf_arr[producer].skb = NULL;
1959
1960 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1961 hdr_len + VLAN_HLEN);
1962
1963 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1964 skb_copy_from_linear_data(skb, vh, 12);
1965 vh->h_vlan_proto = htons(ETH_P_8021Q);
1966 vh->h_vlan_TCI = htons(vid);
1967 skb_copy_from_linear_data_offset(skb, 12,
1968 (char *)vh + 16, copy_len - 16);
1969
545eb370 1970 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1971 offset = 0;
1972
1973 producer = get_next_index(producer, tx_ring->num_desc);
1974 }
1975
1bcfd790
DP		 1976 while (copied < hdr_len) {
1977
1978 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1979 (hdr_len - copied));
1980
1981 hwdesc = &tx_ring->desc_head[producer];
1982 tx_ring->cmd_buf_arr[producer].skb = NULL;
1983
1984 skb_copy_from_linear_data_offset(skb, copied,
1985 (char *)hwdesc + offset, copy_len);
1986
1987 copied += copy_len;
1988 offset = 0;
1989
1990 producer = get_next_index(producer, tx_ring->num_desc);
1991 }
1992
1993 tx_ring->producer = producer;
1994 barrier();
cd1f8160
DP		 1995}
1996
ce644ed4
DP		 1997static int
1998netxen_map_tx_skb(struct pci_dev *pdev,
1999 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 2000{
ce644ed4
DP		 2001 struct netxen_skb_frag *nf;
2002 struct skb_frag_struct *frag;
2003 int i, nr_frags;
2004 dma_addr_t map;
2005
2006 nr_frags = skb_shinfo(skb)->nr_frags;
2007 nf = &pbuf->frag_array[0];
2008
2009 map = pci_map_single(pdev, skb->data,
2010 skb_headlen(skb), PCI_DMA_TODEVICE);
2011 if (pci_dma_mapping_error(pdev, map))
2012 goto out_err;
6f703406 2013
ce644ed4
DP		 2014 nf->dma = map;
2015 nf->length = skb_headlen(skb);
2016
2017 for (i = 0; i < nr_frags; i++) {
2018 frag = &skb_shinfo(skb)->frags[i];
2019 nf = &pbuf->frag_array[i+1];
2020
9e903e08 2021 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 2022 DMA_TO_DEVICE);
2023 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 2024 goto unwind;
2025
2026 nf->dma = map;
9e903e08 2027 nf->length = skb_frag_size(frag);
ce644ed4
DP		 2028 }
2029
2030 return 0;
6f703406 2031
ce644ed4 2032unwind:
cf503e8f
DP		 2033 while (--i >= 0) {
2034 nf = &pbuf->frag_array[i+1];
ce644ed4 2035 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
a05948f2 2036 nf->dma = 0ULL;
6f703406 2037 }
ce644ed4
DP		 2038
2039 nf = &pbuf->frag_array[0];
2040 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
a05948f2 2041 nf->dma = 0ULL;
ce644ed4
DP		 2042
2043out_err:
2044 return -ENOMEM;
6f703406
DP		 2045}
2046
d32cc3d2
DP		 2047static inline void
2048netxen_clear_cmddesc(u64 *desc)
2049{
1bcfd790
DP		 2050 desc[0] = 0ULL;
2051 desc[2] = 0ULL;
d32cc3d2
DP		 2052}
2053
61357325 2054static netdev_tx_t
d32cc3d2 2055netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 2056{
3176ff3e 2057 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 2058 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 2059 struct netxen_cmd_buffer *pbuf;
3d396eb1 2060 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 2061 struct cmd_desc_type0 *hwdesc, *first_desc;
2062 struct pci_dev *pdev;
391587c3 2063 int i, k;
c968bdf6 2064 int delta = 0;
2065 struct skb_frag_struct *frag;
3d396eb1 2066
cb2107be 2067 u32 producer;
ce644ed4 2068 int frag_count, no_of_desc;
d877f1e3 2069 u32 num_txd = tx_ring->num_desc;
3d396eb1 2070
3d396eb1
AK		 2071 frag_count = skb_shinfo(skb)->nr_frags + 1;
2072
c968bdf6 2073 /* 14 frags supported for normal packet and
2074 * 32 frags supported for TSO packet
2075 */
2076 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2077
2078 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2079 frag = &skb_shinfo(skb)->frags[i];
9e903e08 2080 delta += skb_frag_size(frag);
c968bdf6 2081 }
2082
2083 if (!__pskb_pull_tail(skb, delta))
2084 goto drop_packet;
2085
2086 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2087 }
d877f1e3 2088 /* 4 fragments per cmd des */
3d396eb1 2089 no_of_desc = (frag_count + 3) >> 2;
53a01e00 2090
7a9905e6 2091 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2092 netif_stop_queue(netdev);
7a9905e6
RB		 2093 smp_mb();
2094 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2095 netif_start_queue(netdev);
2096 else
2097 return NETDEV_TX_BUSY;
53a01e00 2098 }
3d396eb1 2099
cb2107be 2100 producer = tx_ring->producer;
ce644ed4 2101 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2102
1bcfd790 2103 pdev = adapter->pdev;
391587c3 2104
ce644ed4 2105 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2106 goto drop_packet;
391587c3 2107
3d396eb1 2108 pbuf->skb = skb;
3d396eb1 2109 pbuf->frag_count = frag_count;
6f703406 2110
1bcfd790
DP		 2111 first_desc = hwdesc = &tx_ring->desc_head[producer];
2112 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2113
ce644ed4
DP		 2114 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2115 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2116
ce644ed4 2117 for (i = 0; i < frag_count; i++) {
3d396eb1 2118
ce644ed4
DP		 2119 k = i % 4;
2120
2121 if ((k == 0) && (i > 0)) {
2122 /* move to next desc.*/
ba53e6b4 2123 producer = get_next_index(producer, num_txd);
d877f1e3 2124 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2125 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2126 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2127 }
3d396eb1 2128
ce644ed4 2129 buffrag = &pbuf->frag_array[i];
3d396eb1 2130
ce644ed4 2131 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2132 switch (k) {
2133 case 0:
ce644ed4 2134 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2135 break;
2136 case 1:
ce644ed4 2137 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2138 break;
2139 case 2:
ce644ed4 2140 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2141 break;
2142 case 3:
ce644ed4 2143 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2144 break;
2145 }
3d396eb1 2146 }
ce644ed4 2147
1bcfd790 2148 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2149
1bcfd790 2150 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2151
1bcfd790 2152 adapter->stats.txbytes += skb->len;
ba53e6b4 2153 adapter->stats.xmitcalled++;
3d396eb1 2154
c82b9d7f
ED		 2155 netxen_nic_update_cmd_producer(adapter, tx_ring);
2156
3d396eb1 2157 return NETDEV_TX_OK;
6f703406
DP		 2158
2159drop_packet:
2160 adapter->stats.txdropped++;
2161 dev_kfree_skb_any(skb);
2162 return NETDEV_TX_OK;
3d396eb1
AK		 2163}
2164
a97342f9
DP		 2165static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2166{
2167 struct net_device *netdev = adapter->netdev;
2168 uint32_t temp, temp_state, temp_val;
2169 int rv = 0;
2170
f98a9f69 2171 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2172
2173 temp_state = nx_get_temp_state(temp);
2174 temp_val = nx_get_temp_val(temp);
2175
2176 if (temp_state == NX_TEMP_PANIC) {
2177 printk(KERN_ALERT
2178 "%s: Device temperature %d degrees C exceeds"
2179 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2180 netdev->name, temp_val);
a97342f9
DP		 2181 rv = 1;
2182 } else if (temp_state == NX_TEMP_WARN) {
2183 if (adapter->temp == NX_TEMP_NORMAL) {
2184 printk(KERN_ALERT
2185 "%s: Device temperature %d degrees C "
2186 "exceeds operating range."
2187 " Immediate action needed.\n",
e4135c2d 2188 netdev->name, temp_val);
a97342f9
DP		 2189 }
2190 } else {
2191 if (adapter->temp == NX_TEMP_WARN) {
2192 printk(KERN_INFO
2193 "%s: Device temperature is now %d degrees C"
e4135c2d 2194 " in normal range.\n", netdev->name,
a97342f9
DP		 2195 temp_val);
2196 }
2197 }
2198 adapter->temp = temp_state;
2199 return rv;
2200}
2201
3bf26ce3 2202void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2203{
2204 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2205
2206 if (adapter->ahw.linkup && !linkup) {
2207 printk(KERN_INFO "%s: %s NIC Link is down\n",
2208 netxen_nic_driver_name, netdev->name);
2209 adapter->ahw.linkup = 0;
2210 if (netif_running(netdev)) {
2211 netif_carrier_off(netdev);
2212 netif_stop_queue(netdev);
2213 }
e424fa9d 2214 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2215 } else if (!adapter->ahw.linkup && linkup) {
2216 printk(KERN_INFO "%s: %s NIC Link is up\n",
2217 netxen_nic_driver_name, netdev->name);
2218 adapter->ahw.linkup = 1;
2219 if (netif_running(netdev)) {
2220 netif_carrier_on(netdev);
2221 netif_wake_queue(netdev);
2222 }
e424fa9d 2223 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2224 }
2225}
2226
3bf26ce3
DP		 2227static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2228{
2229 u32 val, port, linkup;
2230
2231 port = adapter->physical_port;
2232
2233 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2234 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2235 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2236 linkup = (val == XG_LINK_UP_P3);
2237 } else {
f98a9f69 2238 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2239 val = (val >> port*8) & 0xff;
2240 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2241 }
2242
2243 netxen_advert_link_change(adapter, linkup);
2244}
2245
3d396eb1
AK		 2246static void netxen_tx_timeout(struct net_device *netdev)
2247{
e424fa9d 2248 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2249
6a581e93
DP		 2250 if (test_bit(__NX_RESETTING, &adapter->state))
2251 return;
2252
f17443f4 2253 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2254 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2255}
2256
74c520da 2257static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2258{
4790654c 2259 struct netxen_adapter *adapter =
3176ff3e 2260 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2261
b2af9cb0
DP		 2262 if (!netif_running(adapter->netdev))
2263 return;
2264
74c520da 2265 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2266 return;
2267
74c520da
AKS		 2268 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2269 goto request_reset;
2270
16d884bd 2271 rtnl_lock();
74c520da
AKS		 2272 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2273 /* try to scrub interrupt */
2274 netxen_napi_disable(adapter);
ba53e6b4 2275
74c520da
AKS		 2276 netxen_napi_enable(adapter);
2277
2278 netif_wake_queue(adapter->netdev);
2279
a598ae17 2280 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2281 } else {
a598ae17 2282 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2283 if (netxen_nic_reset_context(adapter)) {
2284 rtnl_unlock();
2285 goto request_reset;
74c520da 2286 }
74c520da 2287 }
16d884bd
AKS		 2288 adapter->netdev->trans_start = jiffies;
2289 rtnl_unlock();
2290 return;
74c520da
AKS		 2291
2292request_reset:
2293 adapter->need_fw_reset = 1;
ff8a306d 2294 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2295}
2296
47fd428c 2297static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2298 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2299{
2300 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2301
1bb482f8 2302 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2303 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2304 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2305 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2306 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2307 stats->tx_dropped = adapter->stats.txdropped;
2308
2309 return stats;
2310}
2311
e4c93c81 2312static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2313{
d8b100c5
DP		 2314 struct nx_host_sds_ring *sds_ring = data;
2315 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2316 u32 status = 0;
2317
195c5f98 2318 status = readl(adapter->isr_int_vec);
d71e1be8 2319
195c5f98 2320 if (!(status & adapter->int_vec_bit))
05aaa02d 2321 return IRQ_NONE;
e01872af 2322
195c5f98 2323 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2324 /* check interrupt state machine, to be sure */
195c5f98 2325 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2326 if (!ISR_LEGACY_INT_TRIGGERED(status))
2327 return IRQ_NONE;
2328
092bc571
DP		 2329 } else {
2330 unsigned long our_int = 0;
d71e1be8 2331
195c5f98 2332 our_int = readl(adapter->crb_int_state_reg);
092bc571 2333
d71e1be8 2334 /* not our interrupt */
092bc571 2335 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2336 return IRQ_NONE;
2337
092bc571 2338 /* claim interrupt */
195c5f98 2339 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2340
195c5f98 2341 /* clear interrupt */
d8b100c5 2342 netxen_nic_disable_int(sds_ring);
195c5f98 2343 }
092bc571 2344
195c5f98 2345 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2346 /* read twice to ensure write is flushed */
195c5f98
AKS		 2347 readl(adapter->isr_int_vec);
2348 readl(adapter->isr_int_vec);
092bc571 2349
d8b100c5 2350 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2351
2352 return IRQ_HANDLED;
2353}
2354
e4c93c81 2355static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2356{
d8b100c5
DP		 2357 struct nx_host_sds_ring *sds_ring = data;
2358 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2359
092bc571 2360 /* clear interrupt */
195c5f98 2361 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2362
d8b100c5 2363 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2364 return IRQ_HANDLED;
2365}
2366
b3df68f8
DP		 2367static irqreturn_t netxen_msix_intr(int irq, void *data)
2368{
d8b100c5 2369 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2370
d8b100c5 2371 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2372 return IRQ_HANDLED;
2373}
2374
bea3348e 2375static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2376{
d8b100c5
DP		 2377 struct nx_host_sds_ring *sds_ring =
2378 container_of(napi, struct nx_host_sds_ring, napi);
2379
2380 struct netxen_adapter *adapter = sds_ring->adapter;
2381
05aaa02d 2382 int tx_complete;
bea3348e 2383 int work_done;
3d396eb1 2384
05aaa02d 2385 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2386
d8b100c5 2387 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2388
6088beef
ED		 2389 if (!tx_complete)
2390 work_done = budget;
2391
2392 if (work_done < budget) {
d8b100c5 2393 napi_complete(&sds_ring->napi);
f2251f66 2394 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2395 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2396 }
2397
bea3348e 2398 return work_done;
3d396eb1
AK		 2399}
2400
2401#ifdef CONFIG_NET_POLL_CONTROLLER
2402static void netxen_nic_poll_controller(struct net_device *netdev)
2403{
7b589a35
YL		 2404 int ring;
2405 struct nx_host_sds_ring *sds_ring;
3176ff3e 2406 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2407 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2408
3d396eb1 2409 disable_irq(adapter->irq);
7b589a35
YL		 2410 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2411 sds_ring = &recv_ctx->sds_rings[ring];
2412 netxen_intr(adapter->irq, sds_ring);
2413 }
3d396eb1
AK		 2414 enable_irq(adapter->irq);
2415}
2416#endif
3d396eb1 2417
6a581e93
DP		 2418static int
2419nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2420{
2421 int count;
2422 if (netxen_api_lock(adapter))
2423 return -EIO;
2424
2425 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2426
2427 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2428
2429 netxen_api_unlock(adapter);
2430 return count;
2431}
2432
2433static int
2434nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2435{
83f18a55 2436 int count, state;
6a581e93
DP		 2437 if (netxen_api_lock(adapter))
2438 return -EIO;
2439
2440 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2441 WARN_ON(count == 0);
2442
2443 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2444 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2445
83f18a55 2446 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2447 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2448
2449 netxen_api_unlock(adapter);
2450 return count;
2451}
2452
e87ad553
AKS		 2453static int
2454nx_dev_request_aer(struct netxen_adapter *adapter)
2455{
2456 u32 state;
2457 int ret = -EINVAL;
2458
2459 if (netxen_api_lock(adapter))
2460 return ret;
2461
2462 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2463
2464 if (state == NX_DEV_NEED_AER)
2465 ret = 0;
2466 else if (state == NX_DEV_READY) {
2467 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2468 ret = 0;
2469 }
2470
2471 netxen_api_unlock(adapter);
2472 return ret;
2473}
2474
83f18a55 2475int
74c520da
AKS		 2476nx_dev_request_reset(struct netxen_adapter *adapter)
2477{
2478 u32 state;
e87ad553 2479 int ret = -EINVAL;
74c520da
AKS		 2480
2481 if (netxen_api_lock(adapter))
e87ad553 2482 return ret;
74c520da
AKS		 2483
2484 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2485
83f18a55 2486 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2487 ret = 0;
2488 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2489 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2490 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2491 ret = 0;
2492 }
74c520da
AKS		 2493
2494 netxen_api_unlock(adapter);
e87ad553
AKS		 2495
2496 return ret;
74c520da
AKS		 2497}
2498
6a581e93
DP		 2499static int
2500netxen_can_start_firmware(struct netxen_adapter *adapter)
2501{
2502 int count;
2503 int can_start = 0;
2504
83f18a55
M		 2505 if (netxen_api_lock(adapter)) {
2506 nx_incr_dev_ref_cnt(adapter);
2507 return -1;
2508 }
6a581e93
DP		 2509
2510 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2511
2512 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2513 count = 0;
2514
2515 if (count == 0) {
2516 can_start = 1;
2517 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2518 }
2519
2520 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2521
2522 netxen_api_unlock(adapter);
2523
2524 return can_start;
2525}
2526
2527static void
2528netxen_schedule_work(struct netxen_adapter *adapter,
2529 work_func_t func, int delay)
2530{
2531 INIT_DELAYED_WORK(&adapter->fw_work, func);
2532 schedule_delayed_work(&adapter->fw_work, delay);
2533}
2534
2535static void
2536netxen_cancel_fw_work(struct netxen_adapter *adapter)
2537{
2538 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2539 msleep(10);
2540
2541 cancel_delayed_work_sync(&adapter->fw_work);
2542}
2543
2544static void
2545netxen_attach_work(struct work_struct *work)
2546{
2547 struct netxen_adapter *adapter = container_of(work,
2548 struct netxen_adapter, fw_work.work);
2549 struct net_device *netdev = adapter->netdev;
2550 int err = 0;
2551
2552 if (netif_running(netdev)) {
2553 err = netxen_nic_attach(adapter);
2554 if (err)
2555 goto done;
2556
2557 err = netxen_nic_up(adapter, netdev);
2558 if (err) {
2559 netxen_nic_detach(adapter);
2560 goto done;
2561 }
2562
57569d0e 2563 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2564 }
2565
2566 netif_device_attach(netdev);
2567
2568done:
2569 adapter->fw_fail_cnt = 0;
2570 clear_bit(__NX_RESETTING, &adapter->state);
2571 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2572}
2573
2574static void
2575netxen_fwinit_work(struct work_struct *work)
2576{
2577 struct netxen_adapter *adapter = container_of(work,
2578 struct netxen_adapter, fw_work.work);
2579 int dev_state;
83f18a55 2580 int count;
6a581e93 2581 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2582 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2583 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2584 WARN_ON(count == 0);
2585 if (count == 1) {
2586 if (adapter->mdump.md_enabled) {
2587 rtnl_lock();
2588 netxen_dump_fw(adapter);
2589 rtnl_unlock();
2590 }
2591 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2592 if (netxen_api_lock(adapter)) {
2593 clear_bit(__NX_RESETTING, &adapter->state);
2594 NXWR32(adapter, NX_CRB_DEV_STATE,
2595 NX_DEV_FAILED);
2596 return;
2597 }
2598 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2599 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2600 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2601 dev_state = NX_DEV_COLD;
2602 netxen_api_unlock(adapter);
2603 }
2604 }
6a581e93
DP		 2605
2606 switch (dev_state) {
2607 case NX_DEV_COLD:
2608 case NX_DEV_READY:
74c520da
AKS		 2609 if (!netxen_start_firmware(adapter)) {
2610 netxen_schedule_work(adapter, netxen_attach_work, 0);
2611 return;
2612 }
2613 break;
6a581e93 2614
6b50ea15 2615 case NX_DEV_NEED_RESET:
6a581e93 2616 case NX_DEV_INITALIZING:
6a581e93
DP		 2617 netxen_schedule_work(adapter,
2618 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2619 return;
6a581e93
DP		 2620
2621 case NX_DEV_FAILED:
2622 default:
8f9b3f69 2623 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2624 break;
2625 }
2626
83f18a55
M		 2627 if (netxen_api_lock(adapter)) {
2628 clear_bit(__NX_RESETTING, &adapter->state);
2629 return;
2630 }
2631 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2632 netxen_api_unlock(adapter);
2633 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2634 adapter->netdev->name);
2635
6a581e93
DP		 2636 clear_bit(__NX_RESETTING, &adapter->state);
2637}
2638
2639static void
2640netxen_detach_work(struct work_struct *work)
2641{
2642 struct netxen_adapter *adapter = container_of(work,
2643 struct netxen_adapter, fw_work.work);
2644 struct net_device *netdev = adapter->netdev;
83f18a55 2645 int ref_cnt = 0, delay;
6a581e93
DP		 2646 u32 status;
2647
2648 netif_device_detach(netdev);
2649
6f771419 2650 netxen_nic_down(adapter, netdev);
6a581e93 2651
e15eec28 2652 rtnl_lock();
6a581e93 2653 netxen_nic_detach(adapter);
e15eec28 2654 rtnl_unlock();
6a581e93
DP		 2655
2656 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2657
6a581e93 2658 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2659 goto err_ret;
6a581e93
DP		 2660
2661 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2662 goto err_ret;
2663
83f18a55
M		 2664 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2665 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2666
6b50ea15
AKS		 2667 if (ref_cnt == -EIO)
2668 goto err_ret;
2669
6a581e93
DP		 2670 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2671
2672 adapter->fw_wait_cnt = 0;
2673 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2674
2675 return;
2676
2677err_ret:
2678 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2679}
2680
2681static int
2682netxen_check_health(struct netxen_adapter *adapter)
2683{
2684 u32 state, heartbit;
5471aed0 2685 u32 peg_status;
6a581e93
DP		 2686 struct net_device *netdev = adapter->netdev;
2687
e87ad553
AKS		 2688 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2689 if (state == NX_DEV_NEED_AER)
2690 return 0;
2691
6a581e93
DP		 2692 if (netxen_nic_check_temp(adapter))
2693 goto detach;
2694
74c520da 2695 if (adapter->need_fw_reset) {
e87ad553
AKS		 2696 if (nx_dev_request_reset(adapter))
2697 return 0;
74c520da
AKS		 2698 goto detach;
2699 }
2700
e87ad553
AKS		 2701 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2702 * 1. Tx timeout 2. Fw hang
2703 * Send request to destroy context in case of tx timeout only
2704 * and doesn't required in case of Fw hang
2705 */
83f18a55 2706 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2707 adapter->need_fw_reset = 1;
e87ad553
AKS		 2708 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2709 goto detach;
6a808c6c 2710 }
6a581e93
DP		 2711
2712 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2713 return 0;
2714
2715 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2716 if (heartbit != adapter->heartbit) {
2717 adapter->heartbit = heartbit;
2718 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2719 if (adapter->need_fw_reset)
2720 goto detach;
6a581e93
DP		 2721 return 0;
2722 }
2723
2724 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2725 return 0;
2726
e87ad553
AKS		 2727 if (nx_dev_request_reset(adapter))
2728 return 0;
2729
6a581e93
DP		 2730 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2731
5471aed0
SV		 2732 dev_err(&netdev->dev, "firmware hang detected\n");
2733 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2734 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2735 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2736 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2737 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2738 "PEG_NET_4_PC: 0x%x\n",
2739 peg_status,
2740 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2741 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2742 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2746 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2747 dev_err(&adapter->pdev->dev,
2748 "Firmware aborted with error code 0x00006700. "
2749 "Device is being reset.\n");
6a581e93 2750detach:
caa2dd53
NK		 2751 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2752 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2753 netxen_schedule_work(adapter, netxen_detach_work, 0);
2754 return 1;
2755}
2756
2757static void
2758netxen_fw_poll_work(struct work_struct *work)
2759{
2760 struct netxen_adapter *adapter = container_of(work,
2761 struct netxen_adapter, fw_work.work);
2762
2763 if (test_bit(__NX_RESETTING, &adapter->state))
2764 goto reschedule;
2765
9d01412a
MC		 2766 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2767 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
6a581e93
DP		 2768 if (!adapter->has_link_events) {
2769
2770 netxen_nic_handle_phy_intr(adapter);
2771
2772 if (adapter->link_changed)
2773 netxen_nic_set_link_parameters(adapter);
2774 }
2775 }
2776
2777 if (netxen_check_health(adapter))
2778 return;
2779
2780reschedule:
2781 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2782}
2783
fa3ce355
NK		 2784static ssize_t
2785netxen_store_bridged_mode(struct device *dev,
2786 struct device_attribute *attr, const char *buf, size_t len)
2787{
2788 struct net_device *net = to_net_dev(dev);
2789 struct netxen_adapter *adapter = netdev_priv(net);
2790 unsigned long new;
2791 int ret = -EINVAL;
2792
2793 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2794 goto err_out;
2795
2796 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2797 goto err_out;
2798
67d6bfa6 2799 if (kstrtoul(buf, 2, &new))
fa3ce355
NK		 2800 goto err_out;
2801
2802 if (!netxen_config_bridged_mode(adapter, !!new))
2803 ret = len;
2804
2805err_out:
2806 return ret;
2807}
2808
2809static ssize_t
2810netxen_show_bridged_mode(struct device *dev,
2811 struct device_attribute *attr, char *buf)
2812{
2813 struct net_device *net = to_net_dev(dev);
2814 struct netxen_adapter *adapter;
2815 int bridged_mode = 0;
2816
2817 adapter = netdev_priv(net);
2818
2819 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2820 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2821
2822 return sprintf(buf, "%d\n", bridged_mode);
2823}
2824
2825static struct device_attribute dev_attr_bridged_mode = {
2826 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2827 .show = netxen_show_bridged_mode,
2828 .store = netxen_store_bridged_mode,
2829};
2830
70f9cf89
DP		 2831static ssize_t
2832netxen_store_diag_mode(struct device *dev,
2833 struct device_attribute *attr, const char *buf, size_t len)
2834{
2835 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2836 unsigned long new;
2837
67d6bfa6 2838 if (kstrtoul(buf, 2, &new))
70f9cf89
DP		 2839 return -EINVAL;
2840
2841 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2842 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2843
2844 return len;
2845}
2846
2847static ssize_t
2848netxen_show_diag_mode(struct device *dev,
2849 struct device_attribute *attr, char *buf)
2850{
2851 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2852
2853 return sprintf(buf, "%d\n",
2854 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2855}
2856
2857static struct device_attribute dev_attr_diag_mode = {
2858 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2859 .show = netxen_show_diag_mode,
2860 .store = netxen_store_diag_mode,
2861};
2862
2863static int
2864netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2865 loff_t offset, size_t size)
2866{
0b9715e6
AKS		 2867 size_t crb_size = 4;
2868
70f9cf89
DP		 2869 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2870 return -EIO;
2871
0b9715e6
AKS		 2872 if (offset < NETXEN_PCI_CRBSPACE) {
2873 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2874 return -EINVAL;
70f9cf89 2875
0b9715e6
AKS		 2876 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2877 NETXEN_PCI_CAMQM_2M_END))
2878 crb_size = 8;
2879 else
2880 return -EINVAL;
2881 }
2882
2883 if ((size != crb_size) || (offset & (crb_size-1)))
2884 return -EINVAL;
70f9cf89
DP		 2885
2886 return 0;
2887}
2888
2889static ssize_t
2c3c8bea
CW		 2890netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2891 struct bin_attribute *attr,
70f9cf89
DP		 2892 char *buf, loff_t offset, size_t size)
2893{
2894 struct device *dev = container_of(kobj, struct device, kobj);
2895 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2896 u32 data;
0b9715e6 2897 u64 qmdata;
70f9cf89
DP		 2898 int ret;
2899
2900 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2901 if (ret != 0)
2902 return ret;
2903
0b9715e6
AKS		 2904 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2905 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2906 NETXEN_PCI_CAMQM_2M_END)) {
2907 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2908 memcpy(buf, &qmdata, size);
2909 } else {
2910 data = NXRD32(adapter, offset);
2911 memcpy(buf, &data, size);
2912 }
2913
70f9cf89
DP		 2914 return size;
2915}
2916
2917static ssize_t
2c3c8bea
CW		 2918netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2919 struct bin_attribute *attr,
70f9cf89
DP		 2920 char *buf, loff_t offset, size_t size)
2921{
2922 struct device *dev = container_of(kobj, struct device, kobj);
2923 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2924 u32 data;
0b9715e6 2925 u64 qmdata;
70f9cf89
DP		 2926 int ret;
2927
2928 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2929 if (ret != 0)
2930 return ret;
2931
0b9715e6
AKS		 2932 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2933 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2934 NETXEN_PCI_CAMQM_2M_END)) {
2935 memcpy(&qmdata, buf, size);
2936 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2937 } else {
2938 memcpy(&data, buf, size);
2939 NXWR32(adapter, offset, data);
2940 }
2941
70f9cf89
DP		 2942 return size;
2943}
2944
2945static int
2946netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2947 loff_t offset, size_t size)
2948{
2949 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2950 return -EIO;
2951
2952 if ((size != 8) || (offset & 0x7))
2953 return -EIO;
2954
2955 return 0;
2956}
2957
2958static ssize_t
2c3c8bea
CW		 2959netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2960 struct bin_attribute *attr,
70f9cf89
DP		 2961 char *buf, loff_t offset, size_t size)
2962{
2963 struct device *dev = container_of(kobj, struct device, kobj);
2964 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2965 u64 data;
2966 int ret;
2967
2968 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2969 if (ret != 0)
2970 return ret;
2971
2972 if (adapter->pci_mem_read(adapter, offset, &data))
2973 return -EIO;
2974
2975 memcpy(buf, &data, size);
2976
2977 return size;
2978}
2979
2c3c8bea 2980static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2981 struct bin_attribute *attr, char *buf,
2982 loff_t offset, size_t size)
2983{
2984 struct device *dev = container_of(kobj, struct device, kobj);
2985 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2986 u64 data;
2987 int ret;
2988
2989 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2990 if (ret != 0)
2991 return ret;
2992
2993 memcpy(&data, buf, size);
2994
2995 if (adapter->pci_mem_write(adapter, offset, data))
2996 return -EIO;
2997
2998 return size;
2999}
3000
3001
3002static struct bin_attribute bin_attr_crb = {
3003 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3004 .size = 0,
3005 .read = netxen_sysfs_read_crb,
3006 .write = netxen_sysfs_write_crb,
3007};
3008
3009static struct bin_attribute bin_attr_mem = {
3010 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3011 .size = 0,
3012 .read = netxen_sysfs_read_mem,
3013 .write = netxen_sysfs_write_mem,
3014};
3015
d612698b
SC		 3016static ssize_t
3017netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3018 struct bin_attribute *attr,
3019 char *buf, loff_t offset, size_t size)
3020{
3021 struct device *dev = container_of(kobj, struct device, kobj);
3022 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3023 struct net_device *netdev = adapter->netdev;
3024 struct netxen_dimm_cfg dimm;
3025 u8 dw, rows, cols, banks, ranks;
3026 u32 val;
3027
3028 if (size != sizeof(struct netxen_dimm_cfg)) {
3029 netdev_err(netdev, "Invalid size\n");
3030 return -1;
3031 }
3032
3033 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3034 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3035
3036 /* Checks if DIMM info is valid. */
3037 if (val & NETXEN_DIMM_VALID_FLAG) {
3038 netdev_err(netdev, "Invalid DIMM flag\n");
3039 dimm.presence = 0xff;
3040 goto out;
3041 }
3042
3043 rows = NETXEN_DIMM_NUMROWS(val);
3044 cols = NETXEN_DIMM_NUMCOLS(val);
3045 ranks = NETXEN_DIMM_NUMRANKS(val);
3046 banks = NETXEN_DIMM_NUMBANKS(val);
3047 dw = NETXEN_DIMM_DATAWIDTH(val);
3048
3049 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3050
3051 /* Checks if DIMM info is present. */
3052 if (!dimm.presence) {
3053 netdev_err(netdev, "DIMM not present\n");
3054 goto out;
3055 }
3056
3057 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3058
3059 switch (dimm.dimm_type) {
3060 case NETXEN_DIMM_TYPE_RDIMM:
3061 case NETXEN_DIMM_TYPE_UDIMM:
3062 case NETXEN_DIMM_TYPE_SO_DIMM:
3063 case NETXEN_DIMM_TYPE_Micro_DIMM:
3064 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3065 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3066 break;
3067 default:
3068 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3069 goto out;
3070 }
3071
3072 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3073 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3074 else
3075 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3076
3077 if (val & NETXEN_DIMM_SIZE) {
3078 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3079 goto out;
3080 }
3081
3082 if (!rows) {
3083 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3084 goto out;
3085 }
3086
3087 if (!cols) {
3088 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3089 goto out;
3090 }
3091
3092 if (!banks) {
3093 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3094 goto out;
3095 }
3096
3097 ranks += 1;
3098
3099 switch (dw) {
3100 case 0x0:
3101 dw = 32;
3102 break;
3103 case 0x1:
3104 dw = 33;
3105 break;
3106 case 0x2:
3107 dw = 36;
3108 break;
3109 case 0x3:
3110 dw = 64;
3111 break;
3112 case 0x4:
3113 dw = 72;
3114 break;
3115 case 0x5:
3116 dw = 80;
3117 break;
3118 case 0x6:
3119 dw = 128;
3120 break;
3121 case 0x7:
3122 dw = 144;
3123 break;
3124 default:
3125 netdev_err(netdev, "Invalid data-width %x\n", dw);
3126 goto out;
3127 }
3128
3129 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3130 /* Size returned in MB. */
3131 dimm.size = (dimm.size) / 0x100000;
3132out:
3133 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3134 return sizeof(struct netxen_dimm_cfg);
3135
3136}
3137
3138static struct bin_attribute bin_attr_dimm = {
3139 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3140 .size = 0,
3141 .read = netxen_sysfs_read_dimm,
3142};
3143
caa2dd53 3144
fa3ce355
NK		 3145static void
3146netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3147{
b8c30812 3148 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3149
3150 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3151 /* bridged_mode control */
3152 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 3153 dev_warn(dev,
fa3ce355
NK		 3154 "failed to create bridged_mode sysfs entry\n");
3155 }
3156 }
3157}
3158
3159static void
3160netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3161{
b8c30812 3162 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3163
3164 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3165 device_remove_file(dev, &dev_attr_bridged_mode);
3166}
3167
70f9cf89
DP		 3168static void
3169netxen_create_diag_entries(struct netxen_adapter *adapter)
3170{
3171 struct pci_dev *pdev = adapter->pdev;
3172 struct device *dev;
3173
3174 dev = &pdev->dev;
3175 if (device_create_file(dev, &dev_attr_diag_mode))
3176 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3177 if (device_create_bin_file(dev, &bin_attr_crb))
3178 dev_info(dev, "failed to create crb sysfs entry\n");
3179 if (device_create_bin_file(dev, &bin_attr_mem))
3180 dev_info(dev, "failed to create mem sysfs entry\n");
d612698b
SC		 3181 if (device_create_bin_file(dev, &bin_attr_dimm))
3182 dev_info(dev, "failed to create dimm sysfs entry\n");
70f9cf89
DP		 3183}
3184
3185
3186static void
3187netxen_remove_diag_entries(struct netxen_adapter *adapter)
3188{
3189 struct pci_dev *pdev = adapter->pdev;
3190 struct device *dev = &pdev->dev;
3191
3192 device_remove_file(dev, &dev_attr_diag_mode);
3193 device_remove_bin_file(dev, &bin_attr_crb);
3194 device_remove_bin_file(dev, &bin_attr_mem);
d612698b 3195 device_remove_bin_file(dev, &bin_attr_dimm);
70f9cf89
DP		 3196}
3197
044824d9
DP		 3198#ifdef CONFIG_INET
3199
6598b169
DP		 3200#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3201
3202static int
3203netxen_destip_supported(struct netxen_adapter *adapter)
3204{
3205 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3206 return 0;
3207
3208 if (adapter->ahw.cut_through)
3209 return 0;
3210
3211 return 1;
3212}
3213
d0725e4d 3214static void
8a7fbfab 3215netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
57569d0e 3216{
8a7fbfab 3217 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3218
8a7fbfab 3219 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3220 if (master) {
3221 if (cur->master) {
3222 netxen_config_ipaddr(adapter, cur->ip_addr,
3223 NX_IP_DOWN);
3224 list_del(&cur->list);
3225 kfree(cur);
3226 }
3227 } else {
3228 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3229 list_del(&cur->list);
3230 kfree(cur);
3231 }
57569d0e 3232 }
57569d0e 3233}
8a7fbfab 3234
3235static bool
3236netxen_list_config_ip(struct netxen_adapter *adapter,
57569d0e
RB		 3237 struct in_ifaddr *ifa, unsigned long event)
3238{
3239 struct net_device *dev;
8a7fbfab 3240 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3241 struct list_head *head;
8a7fbfab 3242 bool ret = false;
57569d0e
RB		 3243
3244 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3245
3246 if (dev == NULL)
8a7fbfab 3247 goto out;
57569d0e
RB		 3248
3249 switch (event) {
3250 case NX_IP_UP:
8a7fbfab 3251 list_for_each(head, &adapter->ip_list) {
3252 cur = list_entry(head, struct nx_ip_list, list);
57569d0e
RB		 3253
3254 if (cur->ip_addr == ifa->ifa_address)
8a7fbfab 3255 goto out;
57569d0e
RB		 3256 }
3257
8a7fbfab 3258 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
b2adaca9 3259 if (cur == NULL)
8a7fbfab 3260 goto out;
3261 if (dev->priv_flags & IFF_802_1Q_VLAN)
3262 dev = vlan_dev_real_dev(dev);
3263 cur->master = !!netif_is_bond_master(dev);
57569d0e 3264 cur->ip_addr = ifa->ifa_address;
8a7fbfab 3265 list_add_tail(&cur->list, &adapter->ip_list);
3266 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3267 ret = true;
57569d0e
RB		 3268 break;
3269 case NX_IP_DOWN:
3270 list_for_each_entry_safe(cur, tmp_cur,
8a7fbfab 3271 &adapter->ip_list, list) {
57569d0e
RB		 3272 if (cur->ip_addr == ifa->ifa_address) {
3273 list_del(&cur->list);
3274 kfree(cur);
8a7fbfab 3275 netxen_config_ipaddr(adapter, ifa->ifa_address,
3276 NX_IP_DOWN);
3277 ret = true;
57569d0e
RB		 3278 break;
3279 }
3280 }
3281 }
8a7fbfab 3282out:
3283 return ret;
57569d0e 3284}
8a7fbfab 3285
57569d0e
RB		 3286static void
3287netxen_config_indev_addr(struct netxen_adapter *adapter,
3288 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3289{
3290 struct in_device *indev;
d0725e4d 3291
3db76755 3292 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3293 return;
3294
3295 indev = in_dev_get(dev);
3296 if (!indev)
3297 return;
3298
3299 for_ifa(indev) {
3300 switch (event) {
3301 case NETDEV_UP:
8a7fbfab 3302 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3303 break;
3304 case NETDEV_DOWN:
8a7fbfab 3305 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3306 break;
3307 default:
3308 break;
3309 }
3310 } endfor_ifa(indev);
3311
3312 in_dev_put(indev);
d0725e4d
AKS		 3313}
3314
57569d0e
RB		 3315static void
3316netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3317
3318{
3319 struct netxen_adapter *adapter = netdev_priv(netdev);
8a7fbfab 3320 struct nx_ip_list *pos, *tmp_pos;
57569d0e
RB		 3321 unsigned long ip_event;
3322
3323 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3324 netxen_config_indev_addr(adapter, netdev, event);
3325
8a7fbfab 3326 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
57569d0e
RB		 3327 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3328 }
3329}
3330
8a7fbfab 3331static inline bool
3332netxen_config_checkdev(struct net_device *dev)
3333{
3334 struct netxen_adapter *adapter;
3335
3336 if (!is_netxen_netdev(dev))
3337 return false;
3338 adapter = netdev_priv(dev);
3339 if (!adapter)
3340 return false;
3341 if (!netxen_destip_supported(adapter))
3342 return false;
3343 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3344 return false;
3345
3346 return true;
3347}
3348
3349/**
3350 * netxen_config_master - configure addresses based on master
3351 * @dev: netxen device
3352 * @event: netdev event
3353 */
3354static void netxen_config_master(struct net_device *dev, unsigned long event)
3355{
3356 struct net_device *master, *slave;
3357 struct netxen_adapter *adapter = netdev_priv(dev);
3358
3359 rcu_read_lock();
3360 master = netdev_master_upper_dev_get_rcu(dev);
3361 /*
3362 * This is the case where the netxen nic is being
3363 * enslaved and is dev_open()ed in bond_enslave()
3364 * Now we should program the bond's (and its vlans')
3365 * addresses in the netxen NIC.
3366 */
3367 if (master && netif_is_bond_master(master) &&
3368 !netif_is_bond_slave(dev)) {
3369 netxen_config_indev_addr(adapter, master, event);
3370 for_each_netdev_rcu(&init_net, slave)
3371 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3372 vlan_dev_real_dev(slave) == master)
3373 netxen_config_indev_addr(adapter, slave, event);
3374 }
3375 rcu_read_unlock();
3376 /*
3377 * This is the case where the netxen nic is being
3378 * released and is dev_close()ed in bond_release()
3379 * just before IFF_BONDING is stripped.
3380 */
3381 if (!master && dev->priv_flags & IFF_BONDING)
3382 netxen_free_ip_list(adapter, true);
3383}
3384
6598b169
DP		 3385static int netxen_netdev_event(struct notifier_block *this,
3386 unsigned long event, void *ptr)
3387{
3388 struct netxen_adapter *adapter;
351638e7 3389 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
57569d0e 3390 struct net_device *orig_dev = dev;
8a7fbfab 3391 struct net_device *slave;
6598b169
DP		 3392
3393recheck:
3394 if (dev == NULL)
3395 goto done;
3396
3397 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3398 dev = vlan_dev_real_dev(dev);
3399 goto recheck;
3400 }
8a7fbfab 3401 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3402 /* If this is a bonding device, look for netxen-based slaves*/
3403 if (netif_is_bond_master(dev)) {
3404 rcu_read_lock();
3405 for_each_netdev_in_bond_rcu(dev, slave) {
3406 if (!netxen_config_checkdev(slave))
3407 continue;
3408 adapter = netdev_priv(slave);
3409 netxen_config_indev_addr(adapter,
3410 orig_dev, event);
3411 }
3412 rcu_read_unlock();
3413 } else {
3414 if (!netxen_config_checkdev(dev))
3415 goto done;
3416 adapter = netdev_priv(dev);
3417 /* Act only if the actual netxen is the target */
3418 if (orig_dev == dev)
3419 netxen_config_master(dev, event);
3420 netxen_config_indev_addr(adapter, orig_dev, event);
3421 }
3422 }
6598b169
DP		 3423done:
3424 return NOTIFY_DONE;
3425}
3426
3427static int
3428netxen_inetaddr_event(struct notifier_block *this,
3429 unsigned long event, void *ptr)
3430{
3431 struct netxen_adapter *adapter;
8a7fbfab 3432 struct net_device *dev, *slave;
6598b169 3433 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8a7fbfab 3434 unsigned long ip_event;
6598b169
DP		 3435
3436 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
8a7fbfab 3437 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
6598b169 3438recheck:
57569d0e 3439 if (dev == NULL)
6598b169
DP		 3440 goto done;
3441
3442 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3443 dev = vlan_dev_real_dev(dev);
3444 goto recheck;
3445 }
8a7fbfab 3446 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3447 /* If this is a bonding device, look for netxen-based slaves*/
3448 if (netif_is_bond_master(dev)) {
3449 rcu_read_lock();
3450 for_each_netdev_in_bond_rcu(dev, slave) {
3451 if (!netxen_config_checkdev(slave))
3452 continue;
3453 adapter = netdev_priv(slave);
3454 netxen_list_config_ip(adapter, ifa, ip_event);
3455 }
3456 rcu_read_unlock();
3457 } else {
3458 if (!netxen_config_checkdev(dev))
3459 goto done;
3460 adapter = netdev_priv(dev);
3461 netxen_list_config_ip(adapter, ifa, ip_event);
3462 }
6598b169 3463 }
6598b169
DP		 3464done:
3465 return NOTIFY_DONE;
3466}
3467
3468static struct notifier_block netxen_netdev_cb = {
3469 .notifier_call = netxen_netdev_event,
3470};
3471
3472static struct notifier_block netxen_inetaddr_cb = {
3473 .notifier_call = netxen_inetaddr_event,
3474};
9feae56c
RD		 3475#else
3476static void
57569d0e
RB		 3477netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3478{ }
3479static void
8a7fbfab 3480netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
9feae56c 3481{ }
044824d9 3482#endif
6598b169 3483
3646f0e5 3484static const struct pci_error_handlers netxen_err_handler = {
e87ad553
AKS		 3485 .error_detected = netxen_io_error_detected,
3486 .slot_reset = netxen_io_slot_reset,
3487 .resume = netxen_io_resume,
3488};
3489
3d396eb1
AK		 3490static struct pci_driver netxen_driver = {
3491 .name = netxen_nic_driver_name,
3492 .id_table = netxen_pci_tbl,
3493 .probe = netxen_nic_probe,
c3f9c88c 3494 .remove = netxen_nic_remove,
01542cd1 3495#ifdef CONFIG_PM
0b72e659 3496 .suspend = netxen_nic_suspend,
22b5794b 3497 .resume = netxen_nic_resume,
01542cd1 3498#endif
e87ad553
AKS		 3499 .shutdown = netxen_nic_shutdown,
3500 .err_handler = &netxen_err_handler
3d396eb1
AK		 3501};
3502
3d396eb1
AK		 3503static int __init netxen_init_module(void)
3504{
ff4fbd43
DP		 3505 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3506
044824d9 3507#ifdef CONFIG_INET
6598b169
DP		 3508 register_netdevice_notifier(&netxen_netdev_cb);
3509 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3510#endif
184231bd 3511 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3512}
3513
3514module_init(netxen_init_module);
3515
3516static void __exit netxen_exit_module(void)
3517{
3d396eb1 3518 pci_unregister_driver(&netxen_driver);
6598b169 3519
044824d9 3520#ifdef CONFIG_INET
6598b169
DP		 3521 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3522 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3523#endif
3d396eb1
AK		 3524}
3525
3526module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)