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ethernet: use net core MTU range checking in more drivers
[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++) {
8c1f4546
DC		 855 err = netxen_rom_fast_read(adapter, offset, &val);
856 if (err) {
2b9e62ee
DP		 857 dev_err(&pdev->dev, "error reading board info\n");
858 adapter->driver_mismatch = 1;
859 return;
860 }
861 ptr32[i] = cpu_to_le32(val);
862 offset += sizeof(u32);
863 }
864
865 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
866 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
867 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 868 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 869 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
870
83f18a55
M		 871 /* Get FW Mini Coredump template and store it */
872 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
873 if (adapter->mdump.md_template == NULL ||
874 adapter->fw_version > prev_fw_version) {
875 kfree(adapter->mdump.md_template);
876 adapter->mdump.md_template = NULL;
877 err = netxen_setup_minidump(adapter);
878 if (err)
879 dev_err(&adapter->pdev->dev,
880 "Failed to setup minidump rcode = %d\n", err);
881 }
882 }
883
2b9e62ee 884 if (adapter->portnum == 0) {
b08a92bb
MC		 885 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
886 brd_name))
887 strcpy(serial_num, "Unknown");
2b9e62ee 888
c25c0b9b
DP		 889 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
890 module_name(THIS_MODULE),
2b9e62ee
DP		 891 brd_name, serial_num, adapter->ahw.revision_id);
892 }
893
894 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
895 adapter->driver_mismatch = 1;
896 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
897 fw_major, fw_minor, fw_build);
898 return;
899 }
900
901 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
902 i = NXRD32(adapter, NETXEN_SRE_MISC);
903 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
904 }
905
dc7551cb
MC		 906 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
907 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
908 adapter->ahw.cut_through ? "cut-through" : "legacy");
2b9e62ee
DP		 909
910 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
911 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
912
2b9e62ee
DP		 913 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
914 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
915 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
916 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
917 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
918 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
919 }
920
921 adapter->msix_supported = 0;
922 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
923 adapter->msix_supported = !!use_msi_x;
924 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 925 } else {
926 u32 flashed_ver = 0;
927 netxen_rom_fast_read(adapter,
928 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
929 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
930
931 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
932 switch (adapter->ahw.board_type) {
933 case NETXEN_BRDTYPE_P2_SB31_10G:
934 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
935 adapter->msix_supported = !!use_msi_x;
936 adapter->rss_supported = !!use_msi_x;
937 break;
938 default:
939 break;
940 }
2b9e62ee
DP		 941 }
942 }
943
944 adapter->num_txd = MAX_CMD_DESCRIPTORS;
945
946 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
947 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
948 adapter->max_rds_rings = 3;
949 } else {
950 adapter->num_lro_rxd = 0;
951 adapter->max_rds_rings = 2;
952 }
953}
954
ba599d4f 955static int
6a581e93 956netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 957{
958 int val, err, first_boot;
959 struct pci_dev *pdev = adapter->pdev;
960
2b9e62ee
DP		 961 /* required for NX2031 dummy dma */
962 err = nx_set_dma_mask(adapter);
963 if (err)
964 return err;
965
83f18a55
M		 966 err = netxen_can_start_firmware(adapter);
967
968 if (err < 0)
969 return err;
970
971 if (!err)
96f2ebd2 972 goto wait_init;
0b72e659 973
f98a9f69 974 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 975
976 err = netxen_check_hw_init(adapter, first_boot);
977 if (err) {
978 dev_err(&pdev->dev, "error in init HW init sequence\n");
979 return err;
980 }
981
6a581e93 982 netxen_request_firmware(adapter);
f7185c71 983
67c38fc6 984 err = netxen_need_fw_reset(adapter);
1dbc84a7 985 if (err < 0)
db4cfd8a 986 goto err_out;
1dbc84a7 987 if (err == 0)
e3feb266 988 goto pcie_strap_init;
67c38fc6 989
ba599d4f 990 if (first_boot != 0x55555555) {
f98a9f69 991 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 992 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 993 msleep(1);
994 }
567c6c4e 995
f98a9f69 996 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 997 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
999
567c6c4e
DP		 1000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1001 netxen_set_port_mode(adapter);
1002
db4cfd8a
DP		 1003 err = netxen_load_firmware(adapter);
1004 if (err)
1005 goto err_out;
ba599d4f 1006
6a581e93
DP		 1007 netxen_release_firmware(adapter);
1008
ba599d4f
DP		 1009 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1010
1011 /* Initialize multicast addr pool owners */
1012 val = 0x7654;
1e2d0059 1013 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 1014 val |= 0x0f000000;
f98a9f69 1015 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 1016
1017 }
1018
83ac51fa 1019 err = netxen_init_dummy_dma(adapter);
ba599d4f 1020 if (err)
db4cfd8a 1021 goto err_out;
ba599d4f
DP		 1022
1023 /*
1024 * Tell the hardware our version number.
1025 */
1026 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1027 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1028 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 1029 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 1030
e3feb266
RB		 1031pcie_strap_init:
1032 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1033 netxen_pcie_strap_init(adapter);
1034
96f2ebd2 1035wait_init:
ba599d4f
DP		 1036 /* Handshake with the card before we register the devices. */
1037 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1038 if (err) {
83ac51fa 1039 netxen_free_dummy_dma(adapter);
db4cfd8a 1040 goto err_out;
ba599d4f
DP		 1041 }
1042
8f9b3f69
AKS		 1043 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1044
68b3cae0
DP		 1045 nx_update_dma_mask(adapter);
1046
6a581e93 1047 netxen_check_options(adapter);
68b3cae0 1048
74c520da
AKS		 1049 adapter->need_fw_reset = 0;
1050
ec5c50cb 1051 /* fall through and release firmware */
db4cfd8a
DP		 1052
1053err_out:
1054 netxen_release_firmware(adapter);
1055 return err;
ba599d4f
DP		 1056}
1057
9f5bc7f1
DP		 1058static int
1059netxen_nic_request_irq(struct netxen_adapter *adapter)
1060{
1061 irq_handler_t handler;
d8b100c5
DP		 1062 struct nx_host_sds_ring *sds_ring;
1063 int err, ring;
1064
ab392d2d 1065 unsigned long flags = 0;
9f5bc7f1 1066 struct net_device *netdev = adapter->netdev;
d8b100c5 1067 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1068
9f5bc7f1
DP		 1069 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1070 handler = netxen_msix_intr;
1071 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1072 handler = netxen_msi_intr;
1073 else {
1074 flags |= IRQF_SHARED;
1075 handler = netxen_intr;
1076 }
1077 adapter->irq = netdev->irq;
1078
d8b100c5
DP		 1079 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1080 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1081 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1082 err = request_irq(sds_ring->irq, handler,
1083 flags, sds_ring->name, sds_ring);
1084 if (err)
1085 return err;
1086 }
1087
1088 return 0;
1089}
1090
1091static void
1092netxen_nic_free_irq(struct netxen_adapter *adapter)
1093{
1094 int ring;
1095 struct nx_host_sds_ring *sds_ring;
1096
1097 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1098
1099 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1100 sds_ring = &recv_ctx->sds_rings[ring];
1101 free_irq(sds_ring->irq, sds_ring);
1102 }
9f5bc7f1
DP		 1103}
1104
ca2ef330
DP		 1105static void
1106netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1107{
1108 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1109 adapter->coal.normal.data.rx_time_us =
1110 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1111 adapter->coal.normal.data.rx_packets =
1112 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1113 adapter->coal.normal.data.tx_time_us =
1114 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1115 adapter->coal.normal.data.tx_packets =
1116 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1117}
1118
6f771419 1119/* with rtnl_lock */
9f5bc7f1 1120static int
6f771419 1121__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1122{
1123 int err;
1124
db4cfd8a
DP		 1125 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1126 return -EIO;
1127
9f5bc7f1
DP		 1128 err = adapter->init_port(adapter, adapter->physical_port);
1129 if (err) {
1130 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1131 netxen_nic_driver_name, adapter->portnum);
1132 return err;
1133 }
3d0a3cc9 1134 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1135 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1136
3d0a3cc9
DP		 1137 adapter->set_multi(netdev);
1138 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1139
1140 adapter->ahw.linkup = 0;
9f5bc7f1 1141
d8b100c5
DP		 1142 if (adapter->max_sds_rings > 1)
1143 netxen_config_rss(adapter, 1);
9f5bc7f1 1144
ca2ef330
DP		 1145 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1146 netxen_config_intr_coalesce(adapter);
1147
e4baaf71 1148 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1149 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1150
b2af9cb0
DP		 1151 netxen_napi_enable(adapter);
1152
5103c9f7 1153 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1154 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1155 else
1156 netxen_nic_set_link_parameters(adapter);
1157
6a581e93 1158 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1159 return 0;
1160}
1161
6f771419
AKS		 1162/* Usage: During resume and firmware recovery module.*/
1163
1164static inline int
1165netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1166{
1167 int err = 0;
1168
1169 rtnl_lock();
1170 if (netif_running(netdev))
1171 err = __netxen_nic_up(adapter, netdev);
1172 rtnl_unlock();
1173
1174 return err;
1175}
1176
1177/* with rtnl_lock */
9f5bc7f1 1178static void
6f771419 1179__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1180{
db4cfd8a
DP		 1181 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1182 return;
1183
f2251f66
AKS		 1184 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1185 return;
6a581e93 1186
f2251f66 1187 smp_mb();
9f5bc7f1 1188 netif_carrier_off(netdev);
b2af9cb0 1189 netif_tx_disable(netdev);
9f5bc7f1 1190
d478af0d
SC		 1191 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1192 netxen_linkevent_request(adapter, 0);
1193
9f5bc7f1
DP		 1194 if (adapter->stop_port)
1195 adapter->stop_port(adapter);
1196
5cf4d323
DP		 1197 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1198 netxen_p3_free_mac_list(adapter);
1199
22b5794b
AKS		 1200 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1201
be339aee
DP		 1202 netxen_napi_disable(adapter);
1203
9f5bc7f1 1204 netxen_release_tx_buffers(adapter);
9f5bc7f1
DP		 1205}
1206
6f771419
AKS		 1207/* Usage: During suspend and firmware recovery module */
1208
1209static inline void
1210netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1211{
1212 rtnl_lock();
1213 if (netif_running(netdev))
1214 __netxen_nic_down(adapter, netdev);
1215 rtnl_unlock();
1216
1217}
9f5bc7f1
DP		 1218
1219static int
1220netxen_nic_attach(struct netxen_adapter *adapter)
1221{
1222 struct net_device *netdev = adapter->netdev;
1223 struct pci_dev *pdev = adapter->pdev;
becf46a0 1224 int err, ring;
d8b100c5 1225 struct nx_host_rds_ring *rds_ring;
d877f1e3 1226 struct nx_host_tx_ring *tx_ring;
01da0c2b 1227 u32 capab2;
9f5bc7f1 1228
7042cd8f
AKS		 1229 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1230 return 0;
1231
9f5bc7f1 1232 err = netxen_init_firmware(adapter);
232e7d68
DP		 1233 if (err)
1234 return err;
1235
01da0c2b
RB		 1236 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1237 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1238 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1239 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1240 adapter->flags |= NETXEN_FW_MSS_CAP;
1241 }
1242
232e7d68
DP		 1243 err = netxen_napi_add(adapter, netdev);
1244 if (err)
1245 return err;
9f5bc7f1 1246
9f5bc7f1
DP		 1247 err = netxen_alloc_sw_resources(adapter);
1248 if (err) {
1249 printk(KERN_ERR "%s: Error in setting sw resources\n",
1250 netdev->name);
1251 return err;
1252 }
1253
9f5bc7f1
DP		 1254 err = netxen_alloc_hw_resources(adapter);
1255 if (err) {
1256 printk(KERN_ERR "%s: Error in setting hw resources\n",
1257 netdev->name);
1258 goto err_out_free_sw;
1259 }
1260
4f96b988 1261 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1262 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1263 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1264 crb_cmd_producer[adapter->portnum]);
1265 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1266 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1267
cb2107be
DP		 1268 tx_ring->producer = 0;
1269 tx_ring->sw_consumer = 0;
1270
1271 netxen_nic_update_cmd_producer(adapter, tx_ring);
1272 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1273 }
1274
d8b100c5
DP		 1275 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1276 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1277 netxen_post_rx_buffers(adapter, ring, rds_ring);
1278 }
9f5bc7f1
DP		 1279
1280 err = netxen_nic_request_irq(adapter);
1281 if (err) {
1282 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1283 netdev->name);
1284 goto err_out_free_rxbuf;
1285 }
1286
ca2ef330
DP		 1287 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1288 netxen_nic_init_coalesce_defaults(adapter);
1289
fa3ce355
NK		 1290 netxen_create_sysfs_entries(adapter);
1291
9f5bc7f1
DP		 1292 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1293 return 0;
1294
1295err_out_free_rxbuf:
1296 netxen_release_rx_buffers(adapter);
1297 netxen_free_hw_resources(adapter);
1298err_out_free_sw:
1299 netxen_free_sw_resources(adapter);
1300 return err;
1301}
1302
1303static void
1304netxen_nic_detach(struct netxen_adapter *adapter)
1305{
7042cd8f
AKS		 1306 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1307 return;
1308
fa3ce355
NK		 1309 netxen_remove_sysfs_entries(adapter);
1310
9f5bc7f1 1311 netxen_free_hw_resources(adapter);
cf981ffb 1312 netxen_release_rx_buffers(adapter);
be339aee 1313 netxen_nic_free_irq(adapter);
232e7d68 1314 netxen_napi_del(adapter);
9f5bc7f1
DP		 1315 netxen_free_sw_resources(adapter);
1316
1317 adapter->is_up = 0;
1318}
1319
7042cd8f
AKS		 1320int
1321netxen_nic_reset_context(struct netxen_adapter *adapter)
1322{
1323 int err = 0;
1324 struct net_device *netdev = adapter->netdev;
1325
6a581e93
DP		 1326 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1327 return -EBUSY;
1328
7042cd8f
AKS		 1329 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1330
6a581e93
DP		 1331 netif_device_detach(netdev);
1332
7042cd8f 1333 if (netif_running(netdev))
6f771419 1334 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1335
1336 netxen_nic_detach(adapter);
1337
6a581e93
DP		 1338 if (netif_running(netdev)) {
1339 err = netxen_nic_attach(adapter);
1340 if (!err)
6f771419 1341 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1342
6a581e93
DP		 1343 if (err)
1344 goto done;
1345 }
1346
1347 netif_device_attach(netdev);
7042cd8f 1348 }
6a581e93 1349
7042cd8f 1350done:
6a581e93 1351 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1352 return err;
1353}
1354
f17443f4
DP		 1355static int
1356netxen_setup_netdev(struct netxen_adapter *adapter,
1357 struct net_device *netdev)
1358{
1359 int err = 0;
1360 struct pci_dev *pdev = adapter->pdev;
1361
f17443f4
DP		 1362 adapter->mc_enabled = 0;
1363 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1364 adapter->max_mc_count = 38;
1365 else
1366 adapter->max_mc_count = 16;
1367
1368 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1369 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1370
1371 netxen_nic_change_mtu(netdev, netdev->mtu);
1372
7ad24ea4 1373 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
f17443f4 1374
066413da
MM		 1375 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1376 NETIF_F_RXCSUM;
f17443f4 1377
066413da
MM		 1378 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1379 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1380
1381 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1382
1383 if (adapter->pci_using_dac) {
1384 netdev->features |= NETIF_F_HIGHDMA;
1385 netdev->vlan_features |= NETIF_F_HIGHDMA;
1386 }
1387
028afe71 1388 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
f646968f 1389 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
028afe71 1390
1bb482f8 1391 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1392 netdev->hw_features |= NETIF_F_LRO;
1393
1394 netdev->features |= netdev->hw_features;
1bb482f8 1395
f17443f4
DP		 1396 netdev->irq = adapter->msix_entries[0].vector;
1397
74c520da 1398 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1399
1400 if (netxen_read_mac_addr(adapter))
1401 dev_warn(&pdev->dev, "failed to read mac addr\n");
1402
1403 netif_carrier_off(netdev);
f17443f4
DP		 1404
1405 err = register_netdev(netdev);
1406 if (err) {
1407 dev_err(&pdev->dev, "failed to register net device\n");
1408 return err;
1409 }
1410
1411 return 0;
1412}
1413
5e7856b3
SS		 1414#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1415#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1416
1417static void netxen_read_ula_info(struct netxen_adapter *adapter)
1418{
1419 u32 temp;
1420
1421 /* Print ULA info only once for an adapter */
1422 if (adapter->portnum != 0)
1423 return;
1424
1425 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1426 switch (temp) {
1427 case NETXEN_ULA_ADAPTER_KEY:
1428 dev_info(&adapter->pdev->dev, "ULA adapter");
1429 break;
1430 case NETXEN_NON_ULA_ADAPTER_KEY:
1431 dev_info(&adapter->pdev->dev, "non ULA adapter");
1432 break;
1433 default:
1434 break;
1435 }
1436
1437 return;
1438}
1439
dce87b96 1440#ifdef CONFIG_PCIEAER
1441static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1442{
1443 struct pci_dev *pdev = adapter->pdev;
1444 struct pci_dev *root = pdev->bus->self;
1445 u32 aer_pos;
1446
e4d1aa40
NA		 1447 /* root bus? */
1448 if (!root)
1449 return;
1450
dce87b96 1451 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1452 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1453 return;
1454
62f87c0e 1455 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
dce87b96 1456 return;
1457
1458 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1459 if (!aer_pos)
1460 return;
1461
1462 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1463}
1464#endif
1465
c3f9c88c 1466static int
3d396eb1
AK		 1467netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1468{
1469 struct net_device *netdev = NULL;
1470 struct netxen_adapter *adapter = NULL;
2956640d 1471 int i = 0, err;
3176ff3e 1472 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1473 uint8_t revision_id;
5a6f95e6 1474 u32 val;
3d396eb1 1475
688328c7 1476 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
fe3881cf
JP		 1477 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1478 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1479 return -ENODEV;
1480 }
1481
3d396eb1
AK		 1482 if ((err = pci_enable_device(pdev)))
1483 return err;
2956640d 1484
3d396eb1
AK		 1485 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1486 err = -ENODEV;
1487 goto err_out_disable_pdev;
1488 }
1489
1490 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1491 goto err_out_disable_pdev;
1492
e87ad553
AKS		 1493 if (NX_IS_REVISION_P3(pdev->revision))
1494 pci_enable_pcie_error_reporting(pdev);
1495
3d396eb1 1496 pci_set_master(pdev);
3176ff3e
MT		 1497
1498 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1499 if(!netdev) {
f17443f4 1500 err = -ENOMEM;
3176ff3e
MT		 1501 goto err_out_free_res;
1502 }
1503
3176ff3e
MT		 1504 SET_NETDEV_DEV(netdev, &pdev->dev);
1505
4cf1653a 1506 adapter = netdev_priv(netdev);
2956640d
DP		 1507 adapter->netdev = netdev;
1508 adapter->pdev = pdev;
13ba9c77 1509 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1510
1511 revision_id = pdev->revision;
1512 adapter->ahw.revision_id = revision_id;
1513
f03b0ebd
DP		 1514 rwlock_init(&adapter->ahw.crb_lock);
1515 spin_lock_init(&adapter->ahw.mem_lock);
1516
d8b100c5 1517 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1518 INIT_LIST_HEAD(&adapter->mac_list);
8a7fbfab 1519 INIT_LIST_HEAD(&adapter->ip_list);
3ce06a32 1520
97daee83
DP		 1521 err = netxen_setup_pci_map(adapter);
1522 if (err)
6c80b18d 1523 goto err_out_free_netdev;
3d396eb1 1524
2d1a3bbd 1525 /* This will be reset for mezz cards */
3176ff3e 1526 adapter->portnum = pci_func_id;
3176ff3e 1527
f17443f4
DP		 1528 err = netxen_nic_get_board_info(adapter);
1529 if (err) {
1530 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1531 goto err_out_iounmap;
1532 }
6c80b18d 1533
dce87b96 1534#ifdef CONFIG_PCIEAER
1535 netxen_mask_aer_correctable(adapter);
1536#endif
1537
13ba9c77 1538 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1539 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1540 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1541 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1542 if (pci_func_id >= 2)
13ba9c77 1543 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1544 break;
1545 default:
1546 break;
1547 }
13ba9c77 1548
e933d019
AKS		 1549 err = netxen_check_flash_fw_compatibility(adapter);
1550 if (err)
1551 goto err_out_iounmap;
1552
5a6f95e6
RB		 1553 if (adapter->portnum == 0) {
1554 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1555 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1556 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1557 adapter->need_fw_reset = 1;
1558 }
1559 }
1560
6a581e93 1561 err = netxen_start_firmware(adapter);
0b72e659 1562 if (err)
8f9b3f69 1563 goto err_out_decr_ref;
f17443f4 1564
3d396eb1 1565 /*
6c80b18d 1566 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1567 */
dcd56fdb 1568 adapter->physical_port = adapter->portnum;
4f96b988 1569 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1570 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1571 if (i != 0x55555555)
1572 adapter->physical_port = i;
1573 }
6c80b18d 1574
d894be57
JW		 1575 /* MTU range: 0 - 8000 (P2) or 9600 (P3) */
1576 netdev->min_mtu = 0;
1577 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1578 netdev->max_mtu = P3_MAX_MTU;
1579 else
1580 netdev->max_mtu = P2_MAX_MTU;
1581
6a581e93 1582 netxen_nic_clear_stats(adapter);
2956640d 1583
b37eb210
MC		 1584 err = netxen_setup_intr(adapter);
1585
1586 if (err) {
1587 dev_err(&adapter->pdev->dev,
1588 "Failed to setup interrupts, error = %d\n", err);
1589 goto err_out_disable_msi;
1590 }
2956640d 1591
5e7856b3
SS		 1592 netxen_read_ula_info(adapter);
1593
f17443f4 1594 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1595 if (err)
2956640d 1596 goto err_out_disable_msi;
6c80b18d
MT		 1597
1598 pci_set_drvdata(pdev, adapter);
3d396eb1 1599
6a581e93
DP		 1600 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1601
1e2d0059 1602 switch (adapter->ahw.port_type) {
2956640d
DP		 1603 case NETXEN_NIC_GBE:
1604 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1605 adapter->netdev->name);
1606 break;
1607 case NETXEN_NIC_XGBE:
1608 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1609 adapter->netdev->name);
1610 break;
3d396eb1 1611 }
3d396eb1 1612
70f9cf89
DP		 1613 netxen_create_diag_entries(adapter);
1614
2956640d
DP		 1615 return 0;
1616
1617err_out_disable_msi:
97daee83 1618 netxen_teardown_intr(adapter);
6c80b18d 1619
83ac51fa 1620 netxen_free_dummy_dma(adapter);
3d396eb1 1621
8f9b3f69 1622err_out_decr_ref:
6a581e93
DP		 1623 nx_decr_dev_ref_cnt(adapter);
1624
2956640d 1625err_out_iounmap:
97daee83 1626 netxen_cleanup_pci_map(adapter);
cb8011ad 1627
6c80b18d
MT		 1628err_out_free_netdev:
1629 free_netdev(netdev);
1630
1631err_out_free_res:
3d396eb1 1632 pci_release_regions(pdev);
6c80b18d
MT		 1633
1634err_out_disable_pdev:
3d396eb1
AK		 1635 pci_disable_device(pdev);
1636 return err;
1637}
1638
83f18a55
M		 1639static
1640void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1641{
1642 kfree(adapter->mdump.md_template);
1643 adapter->mdump.md_template = NULL;
1644
1645 if (adapter->mdump.md_capture_buff) {
1646 vfree(adapter->mdump.md_capture_buff);
1647 adapter->mdump.md_capture_buff = NULL;
1648 }
1649}
1650
c3f9c88c 1651static void netxen_nic_remove(struct pci_dev *pdev)
3d396eb1
AK		 1652{
1653 struct netxen_adapter *adapter;
3176ff3e 1654 struct net_device *netdev;
3d396eb1 1655
6c80b18d 1656 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1657 if (adapter == NULL)
1658 return;
1659
6c80b18d
MT		 1660 netdev = adapter->netdev;
1661
6a581e93
DP		 1662 netxen_cancel_fw_work(adapter);
1663
96acb6eb
DP		 1664 unregister_netdev(netdev);
1665
e424fa9d
AKS		 1666 cancel_work_sync(&adapter->tx_timeout_task);
1667
8a7fbfab 1668 netxen_free_ip_list(adapter, false);
7042cd8f 1669 netxen_nic_detach(adapter);
3d396eb1 1670
6a581e93
DP		 1671 nx_decr_dev_ref_cnt(adapter);
1672
439b454e 1673 if (adapter->portnum == 0)
83ac51fa 1674 netxen_free_dummy_dma(adapter);
96acb6eb 1675
6a581e93
DP		 1676 clear_bit(__NX_RESETTING, &adapter->state);
1677
97daee83 1678 netxen_teardown_intr(adapter);
b37eb210 1679 netxen_set_interrupt_mode(adapter, 0);
70f9cf89
DP		 1680 netxen_remove_diag_entries(adapter);
1681
97daee83 1682 netxen_cleanup_pci_map(adapter);
595e3fb8 1683
f7185c71
DP		 1684 netxen_release_firmware(adapter);
1685
83f18a55
M		 1686 if (NX_IS_REVISION_P3(pdev->revision)) {
1687 netxen_cleanup_minidump(adapter);
e87ad553 1688 pci_disable_pcie_error_reporting(pdev);
83f18a55 1689 }
e87ad553 1690
595e3fb8 1691 pci_release_regions(pdev);
3052246c 1692 pci_disable_device(pdev);
595e3fb8 1693
6c80b18d 1694 free_netdev(netdev);
3d396eb1 1695}
e87ad553
AKS		 1696
1697static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1698{
0b72e659
DP		 1699 struct net_device *netdev = adapter->netdev;
1700
1701 netif_device_detach(netdev);
1702
6a581e93
DP		 1703 netxen_cancel_fw_work(adapter);
1704
0b72e659
DP		 1705 if (netif_running(netdev))
1706 netxen_nic_down(adapter, netdev);
1707
e424fa9d
AKS		 1708 cancel_work_sync(&adapter->tx_timeout_task);
1709
7042cd8f 1710 netxen_nic_detach(adapter);
0b72e659 1711
22b5794b
AKS		 1712 if (adapter->portnum == 0)
1713 netxen_free_dummy_dma(adapter);
1714
6a581e93
DP		 1715 nx_decr_dev_ref_cnt(adapter);
1716
1717 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1718}
0b72e659 1719
e87ad553 1720static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1721{
1722 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1723 struct net_device *netdev = adapter->netdev;
1724 int err;
1725
0b72e659
DP		 1726 err = pci_enable_device(pdev);
1727 if (err)
1728 return err;
1729
bc86fcba
AKS		 1730 pci_set_power_state(pdev, PCI_D0);
1731 pci_set_master(pdev);
1732 pci_restore_state(pdev);
1733
907fa120 1734 adapter->ahw.crb_win = -1;
47abe356 1735 adapter->ahw.ocm_win = -1;
0b72e659 1736
6a581e93 1737 err = netxen_start_firmware(adapter);
0b72e659
DP		 1738 if (err) {
1739 dev_err(&pdev->dev, "failed to start firmware\n");
1740 return err;
1741 }
1742
1743 if (netif_running(netdev)) {
1744 err = netxen_nic_attach(adapter);
1745 if (err)
6a581e93 1746 goto err_out;
0b72e659
DP		 1747
1748 err = netxen_nic_up(adapter, netdev);
1749 if (err)
6a581e93 1750 goto err_out_detach;
0b72e659 1751
57569d0e 1752 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1753 }
1754
bc86fcba 1755 netif_device_attach(netdev);
6a581e93 1756 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1757 return 0;
6a581e93
DP		 1758
1759err_out_detach:
1760 netxen_nic_detach(adapter);
1761err_out:
1762 nx_decr_dev_ref_cnt(adapter);
1763 return err;
0b72e659 1764}
e87ad553
AKS		 1765
1766static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1767 pci_channel_state_t state)
1768{
1769 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1770
1771 if (state == pci_channel_io_perm_failure)
1772 return PCI_ERS_RESULT_DISCONNECT;
1773
1774 if (nx_dev_request_aer(adapter))
1775 return PCI_ERS_RESULT_RECOVERED;
1776
1777 netxen_nic_detach_func(adapter);
1778
1779 pci_disable_device(pdev);
1780
1781 return PCI_ERS_RESULT_NEED_RESET;
1782}
1783
1784static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1785{
1786 int err = 0;
1787
1788 err = netxen_nic_attach_func(pdev);
1789
1790 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1791}
1792
1793static void netxen_io_resume(struct pci_dev *pdev)
1794{
1795 pci_cleanup_aer_uncorrect_error_status(pdev);
1796}
1797
1798static void netxen_nic_shutdown(struct pci_dev *pdev)
1799{
1800 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1801
1802 netxen_nic_detach_func(adapter);
1803
1804 if (pci_save_state(pdev))
1805 return;
1806
1807 if (netxen_nic_wol_supported(adapter)) {
1808 pci_enable_wake(pdev, PCI_D3cold, 1);
1809 pci_enable_wake(pdev, PCI_D3hot, 1);
1810 }
1811
1812 pci_disable_device(pdev);
1813}
1814
1815#ifdef CONFIG_PM
1816static int
1817netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1818{
1819 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1820 int retval;
1821
1822 netxen_nic_detach_func(adapter);
1823
1824 retval = pci_save_state(pdev);
1825 if (retval)
1826 return retval;
1827
1828 if (netxen_nic_wol_supported(adapter)) {
1829 pci_enable_wake(pdev, PCI_D3cold, 1);
1830 pci_enable_wake(pdev, PCI_D3hot, 1);
1831 }
1832
1833 pci_disable_device(pdev);
1834 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1835
1836 return 0;
1837}
1838
1839static int
1840netxen_nic_resume(struct pci_dev *pdev)
1841{
1842 return netxen_nic_attach_func(pdev);
1843}
01542cd1 1844#endif
0b72e659 1845
3d396eb1
AK		 1846static int netxen_nic_open(struct net_device *netdev)
1847{
4cf1653a 1848 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1849 int err = 0;
3d396eb1 1850
dcd56fdb
DP		 1851 if (adapter->driver_mismatch)
1852 return -EIO;
1853
7042cd8f
AKS		 1854 err = netxen_nic_attach(adapter);
1855 if (err)
1856 return err;
2956640d 1857
6f771419 1858 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1859 if (err)
1860 goto err_out;
05aaa02d 1861
dcd56fdb 1862 netif_start_queue(netdev);
3d396eb1
AK		 1863
1864 return 0;
2956640d 1865
9f5bc7f1
DP		 1866err_out:
1867 netxen_nic_detach(adapter);
2956640d 1868 return err;
3d396eb1
AK		 1869}
1870
1871/*
1872 * netxen_nic_close - Disables a network interface entry point
1873 */
1874static int netxen_nic_close(struct net_device *netdev)
1875{
3176ff3e 1876 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1877
6f771419 1878 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1879 return 0;
1880}
1881
1bcfd790
DP		 1882static void
1883netxen_tso_check(struct net_device *netdev,
1884 struct nx_host_tx_ring *tx_ring,
1885 struct cmd_desc_type0 *first_desc,
1886 struct sk_buff *skb)
cd1f8160 1887{
391587c3 1888 u8 opcode = TX_ETHER_PKT;
cdff1036 1889 __be16 protocol = skb->protocol;
028afe71 1890 u16 flags = 0, vid = 0;
1bcfd790 1891 u32 producer;
028afe71 1892 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1893 struct cmd_desc_type0 *hwdesc;
028afe71 1894 struct vlan_ethhdr *vh;
cdff1036 1895
09640e63 1896 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1897
1898 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1899 protocol = vh->h_vlan_encapsulated_proto;
1900 flags = FLAGS_VLAN_TAGGED;
028afe71 1901
df8a39de 1902 } else if (skb_vlan_tag_present(skb)) {
028afe71 1903 flags = FLAGS_VLAN_OOB;
df8a39de 1904 vid = skb_vlan_tag_get(skb);
028afe71
DP		 1905 netxen_set_tx_vlan_tci(first_desc, vid);
1906 vlan_oob = 1;
cdff1036 1907 }
cd1f8160 1908
391587c3
DP		 1909 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1910 skb_shinfo(skb)->gso_size > 0) {
1911
1bcfd790
DP		 1912 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1913
1914 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1915 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1916 if (vlan_oob) {
1917 first_desc->total_hdr_length += VLAN_HLEN;
1918 first_desc->tcp_hdr_offset = VLAN_HLEN;
1919 first_desc->ip_hdr_offset = VLAN_HLEN;
1920 /* Only in case of TSO on vlan device */
1921 flags |= FLAGS_VLAN_TAGGED;
1922 }
391587c3 1923
09640e63 1924 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1925 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1926 tso = 1;
cd1f8160
DP		 1927
1928 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1929 u8 l4proto;
1930
09640e63 1931 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1932 l4proto = ip_hdr(skb)->protocol;
1933
1934 if (l4proto == IPPROTO_TCP)
1935 opcode = TX_TCP_PKT;
1936 else if(l4proto == IPPROTO_UDP)
1937 opcode = TX_UDP_PKT;
09640e63 1938 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1939 l4proto = ipv6_hdr(skb)->nexthdr;
1940
1941 if (l4proto == IPPROTO_TCP)
1942 opcode = TX_TCPV6_PKT;
1943 else if(l4proto == IPPROTO_UDP)
1944 opcode = TX_UDPV6_PKT;
1945 }
cd1f8160 1946 }
028afe71
DP		 1947
1948 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1949 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1950 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1951
1952 if (!tso)
1953 return;
1954
1955 /* For LSO, we need to copy the MAC/IP/TCP headers into
1956 * the descriptor ring
1957 */
1958 producer = tx_ring->producer;
1959 copied = 0;
1960 offset = 2;
1961
028afe71
DP		 1962 if (vlan_oob) {
1963 /* Create a TSO vlan header template for firmware */
1964
1965 hwdesc = &tx_ring->desc_head[producer];
1966 tx_ring->cmd_buf_arr[producer].skb = NULL;
1967
1968 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1969 hdr_len + VLAN_HLEN);
1970
1971 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1972 skb_copy_from_linear_data(skb, vh, 12);
1973 vh->h_vlan_proto = htons(ETH_P_8021Q);
1974 vh->h_vlan_TCI = htons(vid);
1975 skb_copy_from_linear_data_offset(skb, 12,
1976 (char *)vh + 16, copy_len - 16);
1977
545eb370 1978 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1979 offset = 0;
1980
1981 producer = get_next_index(producer, tx_ring->num_desc);
1982 }
1983
1bcfd790
DP		 1984 while (copied < hdr_len) {
1985
1986 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1987 (hdr_len - copied));
1988
1989 hwdesc = &tx_ring->desc_head[producer];
1990 tx_ring->cmd_buf_arr[producer].skb = NULL;
1991
1992 skb_copy_from_linear_data_offset(skb, copied,
1993 (char *)hwdesc + offset, copy_len);
1994
1995 copied += copy_len;
1996 offset = 0;
1997
1998 producer = get_next_index(producer, tx_ring->num_desc);
1999 }
2000
2001 tx_ring->producer = producer;
2002 barrier();
cd1f8160
DP		 2003}
2004
ce644ed4
DP		 2005static int
2006netxen_map_tx_skb(struct pci_dev *pdev,
2007 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 2008{
ce644ed4
DP		 2009 struct netxen_skb_frag *nf;
2010 struct skb_frag_struct *frag;
2011 int i, nr_frags;
2012 dma_addr_t map;
2013
2014 nr_frags = skb_shinfo(skb)->nr_frags;
2015 nf = &pbuf->frag_array[0];
2016
2017 map = pci_map_single(pdev, skb->data,
2018 skb_headlen(skb), PCI_DMA_TODEVICE);
2019 if (pci_dma_mapping_error(pdev, map))
2020 goto out_err;
6f703406 2021
ce644ed4
DP		 2022 nf->dma = map;
2023 nf->length = skb_headlen(skb);
2024
2025 for (i = 0; i < nr_frags; i++) {
2026 frag = &skb_shinfo(skb)->frags[i];
2027 nf = &pbuf->frag_array[i+1];
2028
9e903e08 2029 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 2030 DMA_TO_DEVICE);
2031 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 2032 goto unwind;
2033
2034 nf->dma = map;
9e903e08 2035 nf->length = skb_frag_size(frag);
ce644ed4
DP		 2036 }
2037
2038 return 0;
6f703406 2039
ce644ed4 2040unwind:
cf503e8f
DP		 2041 while (--i >= 0) {
2042 nf = &pbuf->frag_array[i+1];
ce644ed4 2043 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
a05948f2 2044 nf->dma = 0ULL;
6f703406 2045 }
ce644ed4
DP		 2046
2047 nf = &pbuf->frag_array[0];
2048 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
a05948f2 2049 nf->dma = 0ULL;
ce644ed4
DP		 2050
2051out_err:
2052 return -ENOMEM;
6f703406
DP		 2053}
2054
d32cc3d2
DP		 2055static inline void
2056netxen_clear_cmddesc(u64 *desc)
2057{
1bcfd790
DP		 2058 desc[0] = 0ULL;
2059 desc[2] = 0ULL;
d32cc3d2
DP		 2060}
2061
61357325 2062static netdev_tx_t
d32cc3d2 2063netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 2064{
3176ff3e 2065 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 2066 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 2067 struct netxen_cmd_buffer *pbuf;
3d396eb1 2068 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 2069 struct cmd_desc_type0 *hwdesc, *first_desc;
2070 struct pci_dev *pdev;
391587c3 2071 int i, k;
c968bdf6 2072 int delta = 0;
2073 struct skb_frag_struct *frag;
3d396eb1 2074
cb2107be 2075 u32 producer;
ce644ed4 2076 int frag_count, no_of_desc;
d877f1e3 2077 u32 num_txd = tx_ring->num_desc;
3d396eb1 2078
3d396eb1
AK		 2079 frag_count = skb_shinfo(skb)->nr_frags + 1;
2080
c968bdf6 2081 /* 14 frags supported for normal packet and
2082 * 32 frags supported for TSO packet
2083 */
2084 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2085
2086 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2087 frag = &skb_shinfo(skb)->frags[i];
9e903e08 2088 delta += skb_frag_size(frag);
c968bdf6 2089 }
2090
2091 if (!__pskb_pull_tail(skb, delta))
2092 goto drop_packet;
2093
2094 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2095 }
d877f1e3 2096 /* 4 fragments per cmd des */
3d396eb1 2097 no_of_desc = (frag_count + 3) >> 2;
53a01e00 2098
7a9905e6 2099 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2100 netif_stop_queue(netdev);
7a9905e6
RB		 2101 smp_mb();
2102 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2103 netif_start_queue(netdev);
2104 else
2105 return NETDEV_TX_BUSY;
53a01e00 2106 }
3d396eb1 2107
cb2107be 2108 producer = tx_ring->producer;
ce644ed4 2109 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2110
1bcfd790 2111 pdev = adapter->pdev;
391587c3 2112
ce644ed4 2113 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2114 goto drop_packet;
391587c3 2115
3d396eb1 2116 pbuf->skb = skb;
3d396eb1 2117 pbuf->frag_count = frag_count;
6f703406 2118
1bcfd790
DP		 2119 first_desc = hwdesc = &tx_ring->desc_head[producer];
2120 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2121
ce644ed4
DP		 2122 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2123 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2124
ce644ed4 2125 for (i = 0; i < frag_count; i++) {
3d396eb1 2126
ce644ed4
DP		 2127 k = i % 4;
2128
2129 if ((k == 0) && (i > 0)) {
2130 /* move to next desc.*/
ba53e6b4 2131 producer = get_next_index(producer, num_txd);
d877f1e3 2132 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2133 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2134 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2135 }
3d396eb1 2136
ce644ed4 2137 buffrag = &pbuf->frag_array[i];
3d396eb1 2138
ce644ed4 2139 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2140 switch (k) {
2141 case 0:
ce644ed4 2142 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2143 break;
2144 case 1:
ce644ed4 2145 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2146 break;
2147 case 2:
ce644ed4 2148 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2149 break;
2150 case 3:
ce644ed4 2151 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2152 break;
2153 }
3d396eb1 2154 }
ce644ed4 2155
1bcfd790 2156 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2157
1bcfd790 2158 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2159
1bcfd790 2160 adapter->stats.txbytes += skb->len;
ba53e6b4 2161 adapter->stats.xmitcalled++;
3d396eb1 2162
c82b9d7f
ED		 2163 netxen_nic_update_cmd_producer(adapter, tx_ring);
2164
3d396eb1 2165 return NETDEV_TX_OK;
6f703406
DP		 2166
2167drop_packet:
2168 adapter->stats.txdropped++;
2169 dev_kfree_skb_any(skb);
2170 return NETDEV_TX_OK;
3d396eb1
AK		 2171}
2172
a97342f9
DP		 2173static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2174{
2175 struct net_device *netdev = adapter->netdev;
2176 uint32_t temp, temp_state, temp_val;
2177 int rv = 0;
2178
f98a9f69 2179 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2180
2181 temp_state = nx_get_temp_state(temp);
2182 temp_val = nx_get_temp_val(temp);
2183
2184 if (temp_state == NX_TEMP_PANIC) {
2185 printk(KERN_ALERT
2186 "%s: Device temperature %d degrees C exceeds"
2187 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2188 netdev->name, temp_val);
a97342f9
DP		 2189 rv = 1;
2190 } else if (temp_state == NX_TEMP_WARN) {
2191 if (adapter->temp == NX_TEMP_NORMAL) {
2192 printk(KERN_ALERT
2193 "%s: Device temperature %d degrees C "
2194 "exceeds operating range."
2195 " Immediate action needed.\n",
e4135c2d 2196 netdev->name, temp_val);
a97342f9
DP		 2197 }
2198 } else {
2199 if (adapter->temp == NX_TEMP_WARN) {
2200 printk(KERN_INFO
2201 "%s: Device temperature is now %d degrees C"
e4135c2d 2202 " in normal range.\n", netdev->name,
a97342f9
DP		 2203 temp_val);
2204 }
2205 }
2206 adapter->temp = temp_state;
2207 return rv;
2208}
2209
3bf26ce3 2210void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2211{
2212 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2213
2214 if (adapter->ahw.linkup && !linkup) {
2215 printk(KERN_INFO "%s: %s NIC Link is down\n",
2216 netxen_nic_driver_name, netdev->name);
2217 adapter->ahw.linkup = 0;
2218 if (netif_running(netdev)) {
2219 netif_carrier_off(netdev);
2220 netif_stop_queue(netdev);
2221 }
e424fa9d 2222 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2223 } else if (!adapter->ahw.linkup && linkup) {
2224 printk(KERN_INFO "%s: %s NIC Link is up\n",
2225 netxen_nic_driver_name, netdev->name);
2226 adapter->ahw.linkup = 1;
2227 if (netif_running(netdev)) {
2228 netif_carrier_on(netdev);
2229 netif_wake_queue(netdev);
2230 }
e424fa9d 2231 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2232 }
2233}
2234
3bf26ce3
DP		 2235static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2236{
2237 u32 val, port, linkup;
2238
2239 port = adapter->physical_port;
2240
2241 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2242 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2243 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2244 linkup = (val == XG_LINK_UP_P3);
2245 } else {
f98a9f69 2246 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2247 val = (val >> port*8) & 0xff;
2248 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2249 }
2250
2251 netxen_advert_link_change(adapter, linkup);
2252}
2253
3d396eb1
AK		 2254static void netxen_tx_timeout(struct net_device *netdev)
2255{
e424fa9d 2256 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2257
6a581e93
DP		 2258 if (test_bit(__NX_RESETTING, &adapter->state))
2259 return;
2260
f17443f4 2261 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2262 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2263}
2264
74c520da 2265static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2266{
4790654c 2267 struct netxen_adapter *adapter =
3176ff3e 2268 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2269
b2af9cb0
DP		 2270 if (!netif_running(adapter->netdev))
2271 return;
2272
74c520da 2273 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2274 return;
2275
74c520da
AKS		 2276 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2277 goto request_reset;
2278
16d884bd 2279 rtnl_lock();
74c520da
AKS		 2280 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2281 /* try to scrub interrupt */
2282 netxen_napi_disable(adapter);
ba53e6b4 2283
74c520da
AKS		 2284 netxen_napi_enable(adapter);
2285
2286 netif_wake_queue(adapter->netdev);
2287
a598ae17 2288 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2289 } else {
a598ae17 2290 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2291 if (netxen_nic_reset_context(adapter)) {
2292 rtnl_unlock();
2293 goto request_reset;
74c520da 2294 }
74c520da 2295 }
860e9538 2296 netif_trans_update(adapter->netdev);
16d884bd
AKS		 2297 rtnl_unlock();
2298 return;
74c520da
AKS		 2299
2300request_reset:
2301 adapter->need_fw_reset = 1;
ff8a306d 2302 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2303}
2304
47fd428c 2305static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2306 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2307{
2308 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2309
1bb482f8 2310 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2311 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2312 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2313 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2314 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2315 stats->tx_dropped = adapter->stats.txdropped;
2316
2317 return stats;
2318}
2319
e4c93c81 2320static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2321{
d8b100c5
DP		 2322 struct nx_host_sds_ring *sds_ring = data;
2323 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2324 u32 status = 0;
2325
195c5f98 2326 status = readl(adapter->isr_int_vec);
d71e1be8 2327
195c5f98 2328 if (!(status & adapter->int_vec_bit))
05aaa02d 2329 return IRQ_NONE;
e01872af 2330
195c5f98 2331 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2332 /* check interrupt state machine, to be sure */
195c5f98 2333 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2334 if (!ISR_LEGACY_INT_TRIGGERED(status))
2335 return IRQ_NONE;
2336
092bc571
DP		 2337 } else {
2338 unsigned long our_int = 0;
d71e1be8 2339
195c5f98 2340 our_int = readl(adapter->crb_int_state_reg);
092bc571 2341
d71e1be8 2342 /* not our interrupt */
092bc571 2343 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2344 return IRQ_NONE;
2345
092bc571 2346 /* claim interrupt */
195c5f98 2347 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2348
195c5f98 2349 /* clear interrupt */
d8b100c5 2350 netxen_nic_disable_int(sds_ring);
195c5f98 2351 }
092bc571 2352
195c5f98 2353 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2354 /* read twice to ensure write is flushed */
195c5f98
AKS		 2355 readl(adapter->isr_int_vec);
2356 readl(adapter->isr_int_vec);
092bc571 2357
d8b100c5 2358 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2359
2360 return IRQ_HANDLED;
2361}
2362
e4c93c81 2363static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2364{
d8b100c5
DP		 2365 struct nx_host_sds_ring *sds_ring = data;
2366 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2367
092bc571 2368 /* clear interrupt */
195c5f98 2369 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2370
d8b100c5 2371 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2372 return IRQ_HANDLED;
2373}
2374
b3df68f8
DP		 2375static irqreturn_t netxen_msix_intr(int irq, void *data)
2376{
d8b100c5 2377 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2378
d8b100c5 2379 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2380 return IRQ_HANDLED;
2381}
2382
bea3348e 2383static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2384{
d8b100c5
DP		 2385 struct nx_host_sds_ring *sds_ring =
2386 container_of(napi, struct nx_host_sds_ring, napi);
2387
2388 struct netxen_adapter *adapter = sds_ring->adapter;
2389
05aaa02d 2390 int tx_complete;
bea3348e 2391 int work_done;
3d396eb1 2392
05aaa02d 2393 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2394
d8b100c5 2395 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2396
6088beef
ED		 2397 if (!tx_complete)
2398 work_done = budget;
2399
2400 if (work_done < budget) {
d8b100c5 2401 napi_complete(&sds_ring->napi);
f2251f66 2402 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2403 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2404 }
2405
bea3348e 2406 return work_done;
3d396eb1
AK		 2407}
2408
2409#ifdef CONFIG_NET_POLL_CONTROLLER
2410static void netxen_nic_poll_controller(struct net_device *netdev)
2411{
7b589a35
YL		 2412 int ring;
2413 struct nx_host_sds_ring *sds_ring;
3176ff3e 2414 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2415 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2416
3d396eb1 2417 disable_irq(adapter->irq);
7b589a35
YL		 2418 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2419 sds_ring = &recv_ctx->sds_rings[ring];
2420 netxen_intr(adapter->irq, sds_ring);
2421 }
3d396eb1
AK		 2422 enable_irq(adapter->irq);
2423}
2424#endif
3d396eb1 2425
6a581e93
DP		 2426static int
2427nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2428{
2429 int count;
2430 if (netxen_api_lock(adapter))
2431 return -EIO;
2432
2433 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2434
2435 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2436
2437 netxen_api_unlock(adapter);
2438 return count;
2439}
2440
2441static int
2442nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2443{
83f18a55 2444 int count, state;
6a581e93
DP		 2445 if (netxen_api_lock(adapter))
2446 return -EIO;
2447
2448 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2449 WARN_ON(count == 0);
2450
2451 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2452 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2453
83f18a55 2454 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2455 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2456
2457 netxen_api_unlock(adapter);
2458 return count;
2459}
2460
e87ad553
AKS		 2461static int
2462nx_dev_request_aer(struct netxen_adapter *adapter)
2463{
2464 u32 state;
2465 int ret = -EINVAL;
2466
2467 if (netxen_api_lock(adapter))
2468 return ret;
2469
2470 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2471
2472 if (state == NX_DEV_NEED_AER)
2473 ret = 0;
2474 else if (state == NX_DEV_READY) {
2475 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2476 ret = 0;
2477 }
2478
2479 netxen_api_unlock(adapter);
2480 return ret;
2481}
2482
83f18a55 2483int
74c520da
AKS		 2484nx_dev_request_reset(struct netxen_adapter *adapter)
2485{
2486 u32 state;
e87ad553 2487 int ret = -EINVAL;
74c520da
AKS		 2488
2489 if (netxen_api_lock(adapter))
e87ad553 2490 return ret;
74c520da
AKS		 2491
2492 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2493
83f18a55 2494 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2495 ret = 0;
2496 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2497 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2498 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2499 ret = 0;
2500 }
74c520da
AKS		 2501
2502 netxen_api_unlock(adapter);
e87ad553
AKS		 2503
2504 return ret;
74c520da
AKS		 2505}
2506
6a581e93
DP		 2507static int
2508netxen_can_start_firmware(struct netxen_adapter *adapter)
2509{
2510 int count;
2511 int can_start = 0;
2512
83f18a55
M		 2513 if (netxen_api_lock(adapter)) {
2514 nx_incr_dev_ref_cnt(adapter);
2515 return -1;
2516 }
6a581e93
DP		 2517
2518 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2519
2520 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2521 count = 0;
2522
2523 if (count == 0) {
2524 can_start = 1;
2525 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2526 }
2527
2528 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2529
2530 netxen_api_unlock(adapter);
2531
2532 return can_start;
2533}
2534
2535static void
2536netxen_schedule_work(struct netxen_adapter *adapter,
2537 work_func_t func, int delay)
2538{
2539 INIT_DELAYED_WORK(&adapter->fw_work, func);
2540 schedule_delayed_work(&adapter->fw_work, delay);
2541}
2542
2543static void
2544netxen_cancel_fw_work(struct netxen_adapter *adapter)
2545{
2546 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2547 msleep(10);
2548
2549 cancel_delayed_work_sync(&adapter->fw_work);
2550}
2551
2552static void
2553netxen_attach_work(struct work_struct *work)
2554{
2555 struct netxen_adapter *adapter = container_of(work,
2556 struct netxen_adapter, fw_work.work);
2557 struct net_device *netdev = adapter->netdev;
2558 int err = 0;
2559
2560 if (netif_running(netdev)) {
2561 err = netxen_nic_attach(adapter);
2562 if (err)
2563 goto done;
2564
2565 err = netxen_nic_up(adapter, netdev);
2566 if (err) {
2567 netxen_nic_detach(adapter);
2568 goto done;
2569 }
2570
57569d0e 2571 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2572 }
2573
2574 netif_device_attach(netdev);
2575
2576done:
2577 adapter->fw_fail_cnt = 0;
2578 clear_bit(__NX_RESETTING, &adapter->state);
2579 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2580}
2581
2582static void
2583netxen_fwinit_work(struct work_struct *work)
2584{
2585 struct netxen_adapter *adapter = container_of(work,
2586 struct netxen_adapter, fw_work.work);
2587 int dev_state;
83f18a55 2588 int count;
6a581e93 2589 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2590 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2591 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2592 WARN_ON(count == 0);
2593 if (count == 1) {
2594 if (adapter->mdump.md_enabled) {
2595 rtnl_lock();
2596 netxen_dump_fw(adapter);
2597 rtnl_unlock();
2598 }
2599 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2600 if (netxen_api_lock(adapter)) {
2601 clear_bit(__NX_RESETTING, &adapter->state);
2602 NXWR32(adapter, NX_CRB_DEV_STATE,
2603 NX_DEV_FAILED);
2604 return;
2605 }
2606 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2607 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2608 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2609 dev_state = NX_DEV_COLD;
2610 netxen_api_unlock(adapter);
2611 }
2612 }
6a581e93
DP		 2613
2614 switch (dev_state) {
2615 case NX_DEV_COLD:
2616 case NX_DEV_READY:
74c520da
AKS		 2617 if (!netxen_start_firmware(adapter)) {
2618 netxen_schedule_work(adapter, netxen_attach_work, 0);
2619 return;
2620 }
2621 break;
6a581e93 2622
6b50ea15 2623 case NX_DEV_NEED_RESET:
6a581e93 2624 case NX_DEV_INITALIZING:
6a581e93
DP		 2625 netxen_schedule_work(adapter,
2626 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2627 return;
6a581e93
DP		 2628
2629 case NX_DEV_FAILED:
2630 default:
8f9b3f69 2631 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2632 break;
2633 }
2634
83f18a55
M		 2635 if (netxen_api_lock(adapter)) {
2636 clear_bit(__NX_RESETTING, &adapter->state);
2637 return;
2638 }
2639 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2640 netxen_api_unlock(adapter);
2641 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2642 adapter->netdev->name);
2643
6a581e93
DP		 2644 clear_bit(__NX_RESETTING, &adapter->state);
2645}
2646
2647static void
2648netxen_detach_work(struct work_struct *work)
2649{
2650 struct netxen_adapter *adapter = container_of(work,
2651 struct netxen_adapter, fw_work.work);
2652 struct net_device *netdev = adapter->netdev;
83f18a55 2653 int ref_cnt = 0, delay;
6a581e93
DP		 2654 u32 status;
2655
2656 netif_device_detach(netdev);
2657
6f771419 2658 netxen_nic_down(adapter, netdev);
6a581e93 2659
e15eec28 2660 rtnl_lock();
6a581e93 2661 netxen_nic_detach(adapter);
e15eec28 2662 rtnl_unlock();
6a581e93
DP		 2663
2664 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2665
6a581e93 2666 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2667 goto err_ret;
6a581e93
DP		 2668
2669 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2670 goto err_ret;
2671
83f18a55
M		 2672 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2673 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2674
6b50ea15
AKS		 2675 if (ref_cnt == -EIO)
2676 goto err_ret;
2677
6a581e93
DP		 2678 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2679
2680 adapter->fw_wait_cnt = 0;
2681 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2682
2683 return;
2684
2685err_ret:
2686 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2687}
2688
2689static int
2690netxen_check_health(struct netxen_adapter *adapter)
2691{
2692 u32 state, heartbit;
5471aed0 2693 u32 peg_status;
6a581e93
DP		 2694 struct net_device *netdev = adapter->netdev;
2695
e87ad553
AKS		 2696 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2697 if (state == NX_DEV_NEED_AER)
2698 return 0;
2699
6a581e93
DP		 2700 if (netxen_nic_check_temp(adapter))
2701 goto detach;
2702
74c520da 2703 if (adapter->need_fw_reset) {
e87ad553
AKS		 2704 if (nx_dev_request_reset(adapter))
2705 return 0;
74c520da
AKS		 2706 goto detach;
2707 }
2708
e87ad553
AKS		 2709 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2710 * 1. Tx timeout 2. Fw hang
2711 * Send request to destroy context in case of tx timeout only
2712 * and doesn't required in case of Fw hang
2713 */
83f18a55 2714 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2715 adapter->need_fw_reset = 1;
e87ad553
AKS		 2716 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2717 goto detach;
6a808c6c 2718 }
6a581e93
DP		 2719
2720 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2721 return 0;
2722
2723 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2724 if (heartbit != adapter->heartbit) {
2725 adapter->heartbit = heartbit;
2726 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2727 if (adapter->need_fw_reset)
2728 goto detach;
6a581e93
DP		 2729 return 0;
2730 }
2731
2732 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2733 return 0;
2734
e87ad553
AKS		 2735 if (nx_dev_request_reset(adapter))
2736 return 0;
2737
6a581e93
DP		 2738 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2739
5471aed0
SV		 2740 dev_err(&netdev->dev, "firmware hang detected\n");
2741 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2742 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2743 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2744 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2745 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2746 "PEG_NET_4_PC: 0x%x\n",
2747 peg_status,
2748 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2749 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2750 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2751 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2752 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2753 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2754 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2755 dev_err(&adapter->pdev->dev,
2756 "Firmware aborted with error code 0x00006700. "
2757 "Device is being reset.\n");
6a581e93 2758detach:
caa2dd53
NK		 2759 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2760 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2761 netxen_schedule_work(adapter, netxen_detach_work, 0);
2762 return 1;
2763}
2764
2765static void
2766netxen_fw_poll_work(struct work_struct *work)
2767{
2768 struct netxen_adapter *adapter = container_of(work,
2769 struct netxen_adapter, fw_work.work);
2770
2771 if (test_bit(__NX_RESETTING, &adapter->state))
2772 goto reschedule;
2773
9d01412a
MC		 2774 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2775 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
6a581e93
DP		 2776 if (!adapter->has_link_events) {
2777
2778 netxen_nic_handle_phy_intr(adapter);
2779
2780 if (adapter->link_changed)
2781 netxen_nic_set_link_parameters(adapter);
2782 }
2783 }
2784
2785 if (netxen_check_health(adapter))
2786 return;
2787
2788reschedule:
2789 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2790}
2791
fa3ce355
NK		 2792static ssize_t
2793netxen_store_bridged_mode(struct device *dev,
2794 struct device_attribute *attr, const char *buf, size_t len)
2795{
2796 struct net_device *net = to_net_dev(dev);
2797 struct netxen_adapter *adapter = netdev_priv(net);
2798 unsigned long new;
2799 int ret = -EINVAL;
2800
2801 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2802 goto err_out;
2803
2804 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2805 goto err_out;
2806
67d6bfa6 2807 if (kstrtoul(buf, 2, &new))
fa3ce355
NK		 2808 goto err_out;
2809
2810 if (!netxen_config_bridged_mode(adapter, !!new))
2811 ret = len;
2812
2813err_out:
2814 return ret;
2815}
2816
2817static ssize_t
2818netxen_show_bridged_mode(struct device *dev,
2819 struct device_attribute *attr, char *buf)
2820{
2821 struct net_device *net = to_net_dev(dev);
2822 struct netxen_adapter *adapter;
2823 int bridged_mode = 0;
2824
2825 adapter = netdev_priv(net);
2826
2827 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2828 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2829
2830 return sprintf(buf, "%d\n", bridged_mode);
2831}
2832
2833static struct device_attribute dev_attr_bridged_mode = {
2834 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2835 .show = netxen_show_bridged_mode,
2836 .store = netxen_store_bridged_mode,
2837};
2838
70f9cf89
DP		 2839static ssize_t
2840netxen_store_diag_mode(struct device *dev,
2841 struct device_attribute *attr, const char *buf, size_t len)
2842{
2843 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2844 unsigned long new;
2845
67d6bfa6 2846 if (kstrtoul(buf, 2, &new))
70f9cf89
DP		 2847 return -EINVAL;
2848
2849 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2850 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2851
2852 return len;
2853}
2854
2855static ssize_t
2856netxen_show_diag_mode(struct device *dev,
2857 struct device_attribute *attr, char *buf)
2858{
2859 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2860
2861 return sprintf(buf, "%d\n",
2862 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2863}
2864
2865static struct device_attribute dev_attr_diag_mode = {
2866 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2867 .show = netxen_show_diag_mode,
2868 .store = netxen_store_diag_mode,
2869};
2870
2871static int
2872netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2873 loff_t offset, size_t size)
2874{
0b9715e6
AKS		 2875 size_t crb_size = 4;
2876
70f9cf89
DP		 2877 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2878 return -EIO;
2879
0b9715e6
AKS		 2880 if (offset < NETXEN_PCI_CRBSPACE) {
2881 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2882 return -EINVAL;
70f9cf89 2883
0b9715e6
AKS		 2884 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2885 NETXEN_PCI_CAMQM_2M_END))
2886 crb_size = 8;
2887 else
2888 return -EINVAL;
2889 }
2890
2891 if ((size != crb_size) || (offset & (crb_size-1)))
2892 return -EINVAL;
70f9cf89
DP		 2893
2894 return 0;
2895}
2896
2897static ssize_t
2c3c8bea
CW		 2898netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2899 struct bin_attribute *attr,
70f9cf89
DP		 2900 char *buf, loff_t offset, size_t size)
2901{
016c0bba 2902 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2903 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2904 u32 data;
0b9715e6 2905 u64 qmdata;
70f9cf89
DP		 2906 int ret;
2907
2908 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2909 if (ret != 0)
2910 return ret;
2911
0b9715e6
AKS		 2912 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2913 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2914 NETXEN_PCI_CAMQM_2M_END)) {
2915 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2916 memcpy(buf, &qmdata, size);
2917 } else {
2918 data = NXRD32(adapter, offset);
2919 memcpy(buf, &data, size);
2920 }
2921
70f9cf89
DP		 2922 return size;
2923}
2924
2925static ssize_t
2c3c8bea
CW		 2926netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2927 struct bin_attribute *attr,
70f9cf89
DP		 2928 char *buf, loff_t offset, size_t size)
2929{
016c0bba 2930 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2931 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2932 u32 data;
0b9715e6 2933 u64 qmdata;
70f9cf89
DP		 2934 int ret;
2935
2936 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2937 if (ret != 0)
2938 return ret;
2939
0b9715e6
AKS		 2940 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2941 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2942 NETXEN_PCI_CAMQM_2M_END)) {
2943 memcpy(&qmdata, buf, size);
2944 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2945 } else {
2946 memcpy(&data, buf, size);
2947 NXWR32(adapter, offset, data);
2948 }
2949
70f9cf89
DP		 2950 return size;
2951}
2952
2953static int
2954netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2955 loff_t offset, size_t size)
2956{
2957 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2958 return -EIO;
2959
2960 if ((size != 8) || (offset & 0x7))
2961 return -EIO;
2962
2963 return 0;
2964}
2965
2966static ssize_t
2c3c8bea
CW		 2967netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2968 struct bin_attribute *attr,
70f9cf89
DP		 2969 char *buf, loff_t offset, size_t size)
2970{
016c0bba 2971 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2972 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2973 u64 data;
2974 int ret;
2975
2976 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2977 if (ret != 0)
2978 return ret;
2979
2980 if (adapter->pci_mem_read(adapter, offset, &data))
2981 return -EIO;
2982
2983 memcpy(buf, &data, size);
2984
2985 return size;
2986}
2987
2c3c8bea 2988static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2989 struct bin_attribute *attr, char *buf,
2990 loff_t offset, size_t size)
2991{
016c0bba 2992 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2993 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2994 u64 data;
2995 int ret;
2996
2997 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2998 if (ret != 0)
2999 return ret;
3000
3001 memcpy(&data, buf, size);
3002
3003 if (adapter->pci_mem_write(adapter, offset, data))
3004 return -EIO;
3005
3006 return size;
3007}
3008
3009
3010static struct bin_attribute bin_attr_crb = {
3011 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3012 .size = 0,
3013 .read = netxen_sysfs_read_crb,
3014 .write = netxen_sysfs_write_crb,
3015};
3016
3017static struct bin_attribute bin_attr_mem = {
3018 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3019 .size = 0,
3020 .read = netxen_sysfs_read_mem,
3021 .write = netxen_sysfs_write_mem,
3022};
3023
d612698b
SC		 3024static ssize_t
3025netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3026 struct bin_attribute *attr,
3027 char *buf, loff_t offset, size_t size)
3028{
016c0bba 3029 struct device *dev = kobj_to_dev(kobj);
d612698b
SC		 3030 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3031 struct net_device *netdev = adapter->netdev;
3032 struct netxen_dimm_cfg dimm;
3033 u8 dw, rows, cols, banks, ranks;
3034 u32 val;
3035
748a7295 3036 if (size < attr->size) {
d612698b 3037 netdev_err(netdev, "Invalid size\n");
748a7295 3038 return -EINVAL;
d612698b
SC		 3039 }
3040
3041 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3042 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3043
3044 /* Checks if DIMM info is valid. */
3045 if (val & NETXEN_DIMM_VALID_FLAG) {
3046 netdev_err(netdev, "Invalid DIMM flag\n");
3047 dimm.presence = 0xff;
3048 goto out;
3049 }
3050
3051 rows = NETXEN_DIMM_NUMROWS(val);
3052 cols = NETXEN_DIMM_NUMCOLS(val);
3053 ranks = NETXEN_DIMM_NUMRANKS(val);
3054 banks = NETXEN_DIMM_NUMBANKS(val);
3055 dw = NETXEN_DIMM_DATAWIDTH(val);
3056
3057 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3058
3059 /* Checks if DIMM info is present. */
3060 if (!dimm.presence) {
3061 netdev_err(netdev, "DIMM not present\n");
3062 goto out;
3063 }
3064
3065 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3066
3067 switch (dimm.dimm_type) {
3068 case NETXEN_DIMM_TYPE_RDIMM:
3069 case NETXEN_DIMM_TYPE_UDIMM:
3070 case NETXEN_DIMM_TYPE_SO_DIMM:
3071 case NETXEN_DIMM_TYPE_Micro_DIMM:
3072 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3073 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3074 break;
3075 default:
3076 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3077 goto out;
3078 }
3079
3080 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3081 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3082 else
3083 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3084
3085 if (val & NETXEN_DIMM_SIZE) {
3086 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3087 goto out;
3088 }
3089
3090 if (!rows) {
3091 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3092 goto out;
3093 }
3094
3095 if (!cols) {
3096 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3097 goto out;
3098 }
3099
3100 if (!banks) {
3101 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3102 goto out;
3103 }
3104
3105 ranks += 1;
3106
3107 switch (dw) {
3108 case 0x0:
3109 dw = 32;
3110 break;
3111 case 0x1:
3112 dw = 33;
3113 break;
3114 case 0x2:
3115 dw = 36;
3116 break;
3117 case 0x3:
3118 dw = 64;
3119 break;
3120 case 0x4:
3121 dw = 72;
3122 break;
3123 case 0x5:
3124 dw = 80;
3125 break;
3126 case 0x6:
3127 dw = 128;
3128 break;
3129 case 0x7:
3130 dw = 144;
3131 break;
3132 default:
3133 netdev_err(netdev, "Invalid data-width %x\n", dw);
3134 goto out;
3135 }
3136
3137 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3138 /* Size returned in MB. */
3139 dimm.size = (dimm.size) / 0x100000;
3140out:
3141 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3142 return sizeof(struct netxen_dimm_cfg);
3143
3144}
3145
3146static struct bin_attribute bin_attr_dimm = {
3147 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
748a7295 3148 .size = sizeof(struct netxen_dimm_cfg),
d612698b
SC		 3149 .read = netxen_sysfs_read_dimm,
3150};
3151
caa2dd53 3152
fa3ce355
NK		 3153static void
3154netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3155{
b8c30812 3156 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3157
3158 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3159 /* bridged_mode control */
3160 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 3161 dev_warn(dev,
fa3ce355
NK		 3162 "failed to create bridged_mode sysfs entry\n");
3163 }
3164 }
3165}
3166
3167static void
3168netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3169{
b8c30812 3170 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3171
3172 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3173 device_remove_file(dev, &dev_attr_bridged_mode);
3174}
3175
70f9cf89
DP		 3176static void
3177netxen_create_diag_entries(struct netxen_adapter *adapter)
3178{
3179 struct pci_dev *pdev = adapter->pdev;
3180 struct device *dev;
3181
3182 dev = &pdev->dev;
3183 if (device_create_file(dev, &dev_attr_diag_mode))
3184 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3185 if (device_create_bin_file(dev, &bin_attr_crb))
3186 dev_info(dev, "failed to create crb sysfs entry\n");
3187 if (device_create_bin_file(dev, &bin_attr_mem))
3188 dev_info(dev, "failed to create mem sysfs entry\n");
d612698b
SC		 3189 if (device_create_bin_file(dev, &bin_attr_dimm))
3190 dev_info(dev, "failed to create dimm sysfs entry\n");
70f9cf89
DP		 3191}
3192
3193
3194static void
3195netxen_remove_diag_entries(struct netxen_adapter *adapter)
3196{
3197 struct pci_dev *pdev = adapter->pdev;
3198 struct device *dev = &pdev->dev;
3199
3200 device_remove_file(dev, &dev_attr_diag_mode);
3201 device_remove_bin_file(dev, &bin_attr_crb);
3202 device_remove_bin_file(dev, &bin_attr_mem);
d612698b 3203 device_remove_bin_file(dev, &bin_attr_dimm);
70f9cf89
DP		 3204}
3205
044824d9
DP		 3206#ifdef CONFIG_INET
3207
6598b169
DP		 3208#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3209
3210static int
3211netxen_destip_supported(struct netxen_adapter *adapter)
3212{
3213 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3214 return 0;
3215
3216 if (adapter->ahw.cut_through)
3217 return 0;
3218
3219 return 1;
3220}
3221
d0725e4d 3222static void
8a7fbfab 3223netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
57569d0e 3224{
8a7fbfab 3225 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3226
8a7fbfab 3227 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3228 if (master) {
3229 if (cur->master) {
3230 netxen_config_ipaddr(adapter, cur->ip_addr,
3231 NX_IP_DOWN);
3232 list_del(&cur->list);
3233 kfree(cur);
3234 }
3235 } else {
3236 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3237 list_del(&cur->list);
3238 kfree(cur);
3239 }
57569d0e 3240 }
57569d0e 3241}
8a7fbfab 3242
3243static bool
3244netxen_list_config_ip(struct netxen_adapter *adapter,
57569d0e
RB		 3245 struct in_ifaddr *ifa, unsigned long event)
3246{
3247 struct net_device *dev;
8a7fbfab 3248 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3249 struct list_head *head;
8a7fbfab 3250 bool ret = false;
57569d0e
RB		 3251
3252 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3253
3254 if (dev == NULL)
8a7fbfab 3255 goto out;
57569d0e
RB		 3256
3257 switch (event) {
3258 case NX_IP_UP:
8a7fbfab 3259 list_for_each(head, &adapter->ip_list) {
3260 cur = list_entry(head, struct nx_ip_list, list);
57569d0e
RB		 3261
3262 if (cur->ip_addr == ifa->ifa_address)
8a7fbfab 3263 goto out;
57569d0e
RB		 3264 }
3265
8a7fbfab 3266 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
b2adaca9 3267 if (cur == NULL)
8a7fbfab 3268 goto out;
3269 if (dev->priv_flags & IFF_802_1Q_VLAN)
3270 dev = vlan_dev_real_dev(dev);
3271 cur->master = !!netif_is_bond_master(dev);
57569d0e 3272 cur->ip_addr = ifa->ifa_address;
8a7fbfab 3273 list_add_tail(&cur->list, &adapter->ip_list);
3274 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3275 ret = true;
57569d0e
RB		 3276 break;
3277 case NX_IP_DOWN:
3278 list_for_each_entry_safe(cur, tmp_cur,
8a7fbfab 3279 &adapter->ip_list, list) {
57569d0e
RB		 3280 if (cur->ip_addr == ifa->ifa_address) {
3281 list_del(&cur->list);
3282 kfree(cur);
8a7fbfab 3283 netxen_config_ipaddr(adapter, ifa->ifa_address,
3284 NX_IP_DOWN);
3285 ret = true;
57569d0e
RB		 3286 break;
3287 }
3288 }
3289 }
8a7fbfab 3290out:
3291 return ret;
57569d0e 3292}
8a7fbfab 3293
57569d0e
RB		 3294static void
3295netxen_config_indev_addr(struct netxen_adapter *adapter,
3296 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3297{
3298 struct in_device *indev;
d0725e4d 3299
3db76755 3300 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3301 return;
3302
3303 indev = in_dev_get(dev);
3304 if (!indev)
3305 return;
3306
3307 for_ifa(indev) {
3308 switch (event) {
3309 case NETDEV_UP:
8a7fbfab 3310 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3311 break;
3312 case NETDEV_DOWN:
8a7fbfab 3313 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3314 break;
3315 default:
3316 break;
3317 }
3318 } endfor_ifa(indev);
3319
3320 in_dev_put(indev);
d0725e4d
AKS		 3321}
3322
57569d0e
RB		 3323static void
3324netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3325
3326{
3327 struct netxen_adapter *adapter = netdev_priv(netdev);
8a7fbfab 3328 struct nx_ip_list *pos, *tmp_pos;
57569d0e
RB		 3329 unsigned long ip_event;
3330
3331 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3332 netxen_config_indev_addr(adapter, netdev, event);
3333
8a7fbfab 3334 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
57569d0e
RB		 3335 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3336 }
3337}
3338
8a7fbfab 3339static inline bool
3340netxen_config_checkdev(struct net_device *dev)
3341{
3342 struct netxen_adapter *adapter;
3343
3344 if (!is_netxen_netdev(dev))
3345 return false;
3346 adapter = netdev_priv(dev);
3347 if (!adapter)
3348 return false;
3349 if (!netxen_destip_supported(adapter))
3350 return false;
3351 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3352 return false;
3353
3354 return true;
3355}
3356
3357/**
3358 * netxen_config_master - configure addresses based on master
3359 * @dev: netxen device
3360 * @event: netdev event
3361 */
3362static void netxen_config_master(struct net_device *dev, unsigned long event)
3363{
3364 struct net_device *master, *slave;
3365 struct netxen_adapter *adapter = netdev_priv(dev);
3366
3367 rcu_read_lock();
3368 master = netdev_master_upper_dev_get_rcu(dev);
3369 /*
3370 * This is the case where the netxen nic is being
3371 * enslaved and is dev_open()ed in bond_enslave()
3372 * Now we should program the bond's (and its vlans')
3373 * addresses in the netxen NIC.
3374 */
3375 if (master && netif_is_bond_master(master) &&
3376 !netif_is_bond_slave(dev)) {
3377 netxen_config_indev_addr(adapter, master, event);
3378 for_each_netdev_rcu(&init_net, slave)
3379 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3380 vlan_dev_real_dev(slave) == master)
3381 netxen_config_indev_addr(adapter, slave, event);
3382 }
3383 rcu_read_unlock();
3384 /*
3385 * This is the case where the netxen nic is being
3386 * released and is dev_close()ed in bond_release()
3387 * just before IFF_BONDING is stripped.
3388 */
3389 if (!master && dev->priv_flags & IFF_BONDING)
3390 netxen_free_ip_list(adapter, true);
3391}
3392
6598b169
DP		 3393static int netxen_netdev_event(struct notifier_block *this,
3394 unsigned long event, void *ptr)
3395{
3396 struct netxen_adapter *adapter;
351638e7 3397 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
57569d0e 3398 struct net_device *orig_dev = dev;
8a7fbfab 3399 struct net_device *slave;
6598b169
DP		 3400
3401recheck:
3402 if (dev == NULL)
3403 goto done;
3404
3405 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3406 dev = vlan_dev_real_dev(dev);
3407 goto recheck;
3408 }
8a7fbfab 3409 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3410 /* If this is a bonding device, look for netxen-based slaves*/
3411 if (netif_is_bond_master(dev)) {
3412 rcu_read_lock();
3413 for_each_netdev_in_bond_rcu(dev, slave) {
3414 if (!netxen_config_checkdev(slave))
3415 continue;
3416 adapter = netdev_priv(slave);
3417 netxen_config_indev_addr(adapter,
3418 orig_dev, event);
3419 }
3420 rcu_read_unlock();
3421 } else {
3422 if (!netxen_config_checkdev(dev))
3423 goto done;
3424 adapter = netdev_priv(dev);
3425 /* Act only if the actual netxen is the target */
3426 if (orig_dev == dev)
3427 netxen_config_master(dev, event);
3428 netxen_config_indev_addr(adapter, orig_dev, event);
3429 }
3430 }
6598b169
DP		 3431done:
3432 return NOTIFY_DONE;
3433}
3434
3435static int
3436netxen_inetaddr_event(struct notifier_block *this,
3437 unsigned long event, void *ptr)
3438{
3439 struct netxen_adapter *adapter;
8a7fbfab 3440 struct net_device *dev, *slave;
6598b169 3441 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8a7fbfab 3442 unsigned long ip_event;
6598b169
DP		 3443
3444 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
8a7fbfab 3445 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
6598b169 3446recheck:
57569d0e 3447 if (dev == NULL)
6598b169
DP		 3448 goto done;
3449
3450 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3451 dev = vlan_dev_real_dev(dev);
3452 goto recheck;
3453 }
8a7fbfab 3454 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3455 /* If this is a bonding device, look for netxen-based slaves*/
3456 if (netif_is_bond_master(dev)) {
3457 rcu_read_lock();
3458 for_each_netdev_in_bond_rcu(dev, slave) {
3459 if (!netxen_config_checkdev(slave))
3460 continue;
3461 adapter = netdev_priv(slave);
3462 netxen_list_config_ip(adapter, ifa, ip_event);
3463 }
3464 rcu_read_unlock();
3465 } else {
3466 if (!netxen_config_checkdev(dev))
3467 goto done;
3468 adapter = netdev_priv(dev);
3469 netxen_list_config_ip(adapter, ifa, ip_event);
3470 }
6598b169 3471 }
6598b169
DP		 3472done:
3473 return NOTIFY_DONE;
3474}
3475
3476static struct notifier_block netxen_netdev_cb = {
3477 .notifier_call = netxen_netdev_event,
3478};
3479
3480static struct notifier_block netxen_inetaddr_cb = {
3481 .notifier_call = netxen_inetaddr_event,
3482};
9feae56c
RD		 3483#else
3484static void
57569d0e
RB		 3485netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3486{ }
3487static void
8a7fbfab 3488netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
9feae56c 3489{ }
044824d9 3490#endif
6598b169 3491
3646f0e5 3492static const struct pci_error_handlers netxen_err_handler = {
e87ad553
AKS		 3493 .error_detected = netxen_io_error_detected,
3494 .slot_reset = netxen_io_slot_reset,
3495 .resume = netxen_io_resume,
3496};
3497
3d396eb1
AK		 3498static struct pci_driver netxen_driver = {
3499 .name = netxen_nic_driver_name,
3500 .id_table = netxen_pci_tbl,
3501 .probe = netxen_nic_probe,
c3f9c88c 3502 .remove = netxen_nic_remove,
01542cd1 3503#ifdef CONFIG_PM
0b72e659 3504 .suspend = netxen_nic_suspend,
22b5794b 3505 .resume = netxen_nic_resume,
01542cd1 3506#endif
e87ad553
AKS		 3507 .shutdown = netxen_nic_shutdown,
3508 .err_handler = &netxen_err_handler
3d396eb1
AK		 3509};
3510
3d396eb1
AK		 3511static int __init netxen_init_module(void)
3512{
ff4fbd43
DP		 3513 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3514
044824d9 3515#ifdef CONFIG_INET
6598b169
DP		 3516 register_netdevice_notifier(&netxen_netdev_cb);
3517 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3518#endif
184231bd 3519 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3520}
3521
3522module_init(netxen_init_module);
3523
3524static void __exit netxen_exit_module(void)
3525{
3d396eb1 3526 pci_unregister_driver(&netxen_driver);
6598b169 3527
044824d9 3528#ifdef CONFIG_INET
6598b169
DP		 3529 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3530 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3531#endif
3d396eb1
AK		 3532}
3533
3534module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)