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[mirror_ubuntu-artful-kernel.git] / drivers / net / 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
AK		 16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
80922fbc 20 *
3d396eb1 21 * The full GNU General Public License is included in this distribution
4d21fef4 22 * in the file called "COPYING".
80922fbc 23 *
3d396eb1
AK		 24 */
25
5a0e3ad6 26#include <linux/slab.h>
cb8011ad 27#include <linux/vmalloc.h>
e98e3350 28#include <linux/interrupt.h>
3d396eb1
AK		 29#include "netxen_nic_hw.h"
30
31#include "netxen_nic.h"
3d396eb1 32
1494a814 33#include <linux/dma-mapping.h>
391587c3 34#include <linux/if_vlan.h>
c9bdd4b5 35#include <net/ip.h>
00977784 36#include <linux/ipv6.h>
6598b169 37#include <linux/inetdevice.h>
0531d7b8 38#include <linux/sysfs.h>
e87ad553 39#include <linux/aer.h>
1494a814 40
c25c0b9b 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
3d396eb1
AK		 42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97
DP		 44MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
45MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
46MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
47MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 48
ceded32f 49char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 50static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 51 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 52
2956640d
DP		 53static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
54
55/* Default to restricted 1G auto-neg mode */
56static int wol_port_mode = 5;
57
58static int use_msi = 1;
59
60static int use_msi_x = 1;
61
afdafff1
SH		 62static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
63module_param(auto_fw_reset, int, 0644);
64MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 65
3d396eb1 66static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 67 const struct pci_device_id *ent);
3d396eb1
AK		 68static void __devexit netxen_nic_remove(struct pci_dev *pdev);
69static int netxen_nic_open(struct net_device *netdev);
70static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 71static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
72 struct net_device *);
3d396eb1 73static void netxen_tx_timeout(struct net_device *netdev);
74c520da 74static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 75static void netxen_fw_poll_work(struct work_struct *work);
76static void netxen_schedule_work(struct netxen_adapter *adapter,
77 work_func_t func, int delay);
78static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 79static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 80#ifdef CONFIG_NET_POLL_CONTROLLER
81static void netxen_nic_poll_controller(struct net_device *netdev);
82#endif
fa3ce355
NK		 83
84static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
85static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 86static void netxen_create_diag_entries(struct netxen_adapter *adapter);
87static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 88
e87ad553 89static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 90static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
91static int netxen_can_start_firmware(struct netxen_adapter *adapter);
92
1494a814 93static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 94static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 95static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 96
d0725e4d
AKS		 97static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
98
3d396eb1 99/* PCI Device ID Table */
70081ac5 100#define ENTRY(device) \
040dec3b 101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
a3aa1884 104static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 113 {0,}
114};
115
116MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117
7830b22c
DP		 118static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121};
122
c9fc891f 123void
3ce06a32 124netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 125 struct nx_host_tx_ring *tx_ring)
3176ff3e 126{
195c5f98 127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 128}
129
7830b22c
DP		 130static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133};
134
3ce06a32
DP		 135static inline void
136netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 137 struct nx_host_tx_ring *tx_ring)
3176ff3e 138{
195c5f98 139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 140}
141
2956640d 142static uint32_t msi_tgt_status[8] = {
443be796 143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 147};
148
2956640d
DP		 149static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150
d8b100c5 151static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 152{
d8b100c5
DP		 153 struct netxen_adapter *adapter = sds_ring->adapter;
154
195c5f98 155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 156}
157
d8b100c5 158static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 159{
d8b100c5
DP		 160 struct netxen_adapter *adapter = sds_ring->adapter;
161
195c5f98 162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 163
092bc571 164 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 166}
167
71dcddbd
DP		 168static int
169netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170{
171 int size = sizeof(struct nx_host_sds_ring) * count;
172
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174
807540ba 175 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 176}
177
d8b100c5 178static void
71dcddbd
DP		 179netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180{
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
232e7d68
DP		 183
184 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 185}
186
187static int
d8b100c5
DP		 188netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
189{
190 int ring;
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193
71dcddbd 194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 195 return -ENOMEM;
71dcddbd 196
d8b100c5
DP		 197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
201 }
71dcddbd
DP		 202
203 return 0;
d8b100c5
DP		 204}
205
232e7d68
DP		 206static void
207netxen_napi_del(struct netxen_adapter *adapter)
208{
209 int ring;
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
216 }
217
218 netxen_free_sds_rings(&adapter->recv_ctx);
219}
220
d8b100c5
DP		 221static void
222netxen_napi_enable(struct netxen_adapter *adapter)
223{
224 int ring;
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
232 }
233}
234
235static void
236netxen_napi_disable(struct netxen_adapter *adapter)
237{
238 int ring;
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 244 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
d8b100c5
DP		 247 }
248}
249
50c643e7 250static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 251{
252 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 253 uint64_t mask, cmask;
254
255 adapter->pci_using_dac = 0;
2956640d 256
6afd142f 257 mask = DMA_BIT_MASK(32);
6afd142f 258 cmask = DMA_BIT_MASK(32);
1f434f63 259
50c643e7 260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 261#ifndef CONFIG_IA64
6afd142f 262 mask = DMA_BIT_MASK(35);
1f434f63 263#endif
50c643e7
DP		 264 } else {
265 mask = DMA_BIT_MASK(39);
266 cmask = mask;
267 }
268
2956640d 269 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 271 adapter->pci_using_dac = 1;
272 return 0;
273 }
2956640d 274
1f434f63
DP		 275 return -EIO;
276}
277
278/* Update addressable range if firmware supports it */
279static int
280nx_update_dma_mask(struct netxen_adapter *adapter)
281{
282 int change, shift, err;
50c643e7 283 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 284 struct pci_dev *pdev = adapter->pdev;
285
286 change = 0;
287
f98a9f69 288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 289 if (shift > 32)
1f434f63
DP		 290 return 0;
291
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 change = 1;
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
295 change = 1;
296
297 if (change) {
298 old_mask = pdev->dma_mask;
50c643e7
DP		 299 old_cmask = pdev->dev.coherent_dma_mask;
300
f60f7856 301 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 302
303 err = pci_set_dma_mask(pdev, mask);
304 if (err)
50c643e7
DP		 305 goto err_out;
306
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308
309 err = pci_set_consistent_dma_mask(pdev, mask);
310 if (err)
311 goto err_out;
312 }
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 314 }
315
2956640d 316 return 0;
50c643e7
DP		 317
318err_out:
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
321 return err;
2956640d
DP		 322}
323
2956640d
DP		 324static int
325netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
326{
27c915a4 327 u32 val, timeout;
2956640d
DP		 328
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
f98a9f69 331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 332
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
334 return 0;
2956640d
DP		 335
336 /* PCI bus master workaround */
f98a9f69 337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 338 if (!(first_boot & 0x4)) {
339 first_boot |= 0x4;
f98a9f69 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 341 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 342 }
343
344 /* This is the first boot after power up */
f98a9f69 345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
f98a9f69 348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 349 return -EIO;
2956640d
DP		 350 }
351
27c915a4 352 /* Start P2 boot loader */
f98a9f69
DP		 353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 355 timeout = 0;
356 do {
357 msleep(1);
f98a9f69 358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 359
360 if (++timeout > 5000)
361 return -EIO;
362
363 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 364 }
27c915a4 365 return 0;
2956640d
DP		 366}
367
368static void netxen_set_port_mode(struct netxen_adapter *adapter)
369{
370 u32 val, data;
371
1e2d0059 372 val = adapter->ahw.board_type;
2956640d
DP		 373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
f98a9f69 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 387 } else {
388 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 390 }
391
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 }
f98a9f69 398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 399 }
400}
401
2956640d
DP		 402static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
403{
404 u32 control;
405 int pos;
406
407 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
408 if (pos) {
409 pci_read_config_dword(pdev, pos, &control);
410 if (enable)
411 control |= PCI_MSIX_FLAGS_ENABLE;
412 else
413 control = 0;
414 pci_write_config_dword(pdev, pos, control);
415 }
416}
417
be339aee 418static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 419{
420 int i;
421
be339aee 422 for (i = 0; i < count; i++)
2956640d
DP		 423 adapter->msix_entries[i].entry = i;
424}
425
9dc28efe
DP		 426static int
427netxen_read_mac_addr(struct netxen_adapter *adapter)
428{
429 int i;
430 unsigned char *p;
a03d2451 431 u64 mac_addr;
9dc28efe
DP		 432 struct net_device *netdev = adapter->netdev;
433 struct pci_dev *pdev = adapter->pdev;
434
9dc28efe
DP		 435 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
436 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
437 return -EIO;
438 } else {
439 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
440 return -EIO;
441 }
442
443 p = (unsigned char *)&mac_addr;
444 for (i = 0; i < 6; i++)
445 netdev->dev_addr[i] = *(p + 5 - i);
446
447 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
5d09e534 448 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 449
450 /* set station address */
451
e174961c
JB		 452 if (!is_valid_ether_addr(netdev->perm_addr))
453 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 454
455 return 0;
456}
457
3d0a3cc9
DP		 458int netxen_nic_set_mac(struct net_device *netdev, void *p)
459{
460 struct netxen_adapter *adapter = netdev_priv(netdev);
461 struct sockaddr *addr = p;
462
463 if (!is_valid_ether_addr(addr->sa_data))
464 return -EINVAL;
465
466 if (netif_running(netdev)) {
467 netif_device_detach(netdev);
468 netxen_napi_disable(adapter);
469 }
470
5d09e534 471 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 472 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
473 adapter->macaddr_set(adapter, addr->sa_data);
474
475 if (netif_running(netdev)) {
476 netif_device_attach(netdev);
477 netxen_napi_enable(adapter);
478 }
479 return 0;
480}
481
1abd266f
SH		 482static void netxen_set_multicast_list(struct net_device *dev)
483{
484 struct netxen_adapter *adapter = netdev_priv(dev);
485
3d0a3cc9 486 adapter->set_multi(dev);
1abd266f
SH		 487}
488
489static const struct net_device_ops netxen_netdev_ops = {
490 .ndo_open = netxen_nic_open,
491 .ndo_stop = netxen_nic_close,
492 .ndo_start_xmit = netxen_nic_xmit_frame,
493 .ndo_get_stats = netxen_nic_get_stats,
494 .ndo_validate_addr = eth_validate_addr,
495 .ndo_set_multicast_list = netxen_set_multicast_list,
496 .ndo_set_mac_address = netxen_nic_set_mac,
497 .ndo_change_mtu = netxen_nic_change_mtu,
498 .ndo_tx_timeout = netxen_tx_timeout,
499#ifdef CONFIG_NET_POLL_CONTROLLER
500 .ndo_poll_controller = netxen_nic_poll_controller,
501#endif
502};
503
97daee83
DP		 504static void
505netxen_setup_intr(struct netxen_adapter *adapter)
506{
507 struct netxen_legacy_intr_set *legacy_intrp;
508 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 509 int err, num_msix;
510
511 if (adapter->rss_supported) {
512 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
513 MSIX_ENTRIES_PER_ADAPTER : 2;
514 } else
515 num_msix = 1;
516
517 adapter->max_sds_rings = 1;
97daee83
DP		 518
519 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 520
521 if (adapter->ahw.revision_id >= NX_P3_B0)
522 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
523 else
524 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 525
526 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
527 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
528 legacy_intrp->tgt_status_reg);
529 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_mask_reg);
531 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->pci_int_reg);
533 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
534
535 if (adapter->ahw.revision_id >= NX_P3_B1)
536 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
537 ISR_INT_STATE_REG);
538 else
539 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
540 CRB_INT_VECTOR);
97daee83
DP		 541
542 netxen_set_msix_bit(pdev, 0);
543
544 if (adapter->msix_supported) {
545
be339aee
DP		 546 netxen_init_msix_entries(adapter, num_msix);
547 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
548 if (err == 0) {
549 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
550 netxen_set_msix_bit(pdev, 1);
97daee83 551
be339aee
DP		 552 if (adapter->rss_supported)
553 adapter->max_sds_rings = num_msix;
97daee83 554
be339aee
DP		 555 dev_info(&pdev->dev, "using msi-x interrupts\n");
556 return;
557 }
558
559 if (err > 0)
560 pci_disable_msix(pdev);
561
562 /* fall through for msi */
97daee83 563 }
be339aee
DP		 564
565 if (use_msi && !pci_enable_msi(pdev)) {
566 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 567 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
568 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 569 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 570 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 571 return;
572 }
573
574 dev_info(&pdev->dev, "using legacy interrupts\n");
575 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 576}
577
578static void
579netxen_teardown_intr(struct netxen_adapter *adapter)
580{
581 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
582 pci_disable_msix(adapter->pdev);
583 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
584 pci_disable_msi(adapter->pdev);
585}
586
587static void
588netxen_cleanup_pci_map(struct netxen_adapter *adapter)
589{
590 if (adapter->ahw.db_base != NULL)
591 iounmap(adapter->ahw.db_base);
592 if (adapter->ahw.pci_base0 != NULL)
593 iounmap(adapter->ahw.pci_base0);
594 if (adapter->ahw.pci_base1 != NULL)
595 iounmap(adapter->ahw.pci_base1);
596 if (adapter->ahw.pci_base2 != NULL)
597 iounmap(adapter->ahw.pci_base2);
598}
599
600static int
601netxen_setup_pci_map(struct netxen_adapter *adapter)
602{
97daee83
DP		 603 void __iomem *db_ptr = NULL;
604
71fb62fb 605 resource_size_t mem_base, db_base;
afbe5cd6 606 unsigned long mem_len, db_len = 0;
97daee83
DP		 607
608 struct pci_dev *pdev = adapter->pdev;
609 int pci_func = adapter->ahw.pci_func;
afbe5cd6 610 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 611
612 int err = 0;
613
614 /*
615 * Set the CRB window to invalid. If any register in window 0 is
616 * accessed it should set the window to 0 and then reset it to 1.
617 */
907fa120 618 adapter->ahw.crb_win = -1;
47abe356 619 adapter->ahw.ocm_win = -1;
97daee83
DP		 620
621 /* remap phys address */
622 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
623 mem_len = pci_resource_len(pdev, 0);
97daee83 624
97daee83
DP		 625 /* 128 Meg of memory */
626 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 627
628 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
629 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 630 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 631 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 632 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 633 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
634 ahw->pci_base2 == NULL) {
635 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
636 err = -EIO;
637 goto err_out;
638 }
639
640 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
641
97daee83 642 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 643
644 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
645 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 646 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 647 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
648 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
649 err = -EIO;
650 goto err_out;
651 }
652
97daee83 653 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 654
afbe5cd6
AKS		 655 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
656 if (ahw->pci_base0 == NULL) {
97daee83
DP		 657 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
658 return -EIO;
659 }
afbe5cd6 660 ahw->pci_len0 = mem_len;
97daee83
DP		 661 } else {
662 return -EIO;
663 }
664
195c5f98
AKS		 665 netxen_setup_hwops(adapter);
666
97daee83
DP		 667 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
668
6abb4b83
AKS		 669 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
670 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
671 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
672
673 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 674 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
675 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
676 }
677
97daee83
DP		 678 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
679 goto skip_doorbell;
680
681 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
682 db_len = pci_resource_len(pdev, 4);
683
684 if (db_len == 0) {
685 printk(KERN_ERR "%s: doorbell is disabled\n",
686 netxen_nic_driver_name);
687 err = -EIO;
688 goto err_out;
689 }
690
691 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
692 if (!db_ptr) {
693 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
694 netxen_nic_driver_name);
695 err = -EIO;
696 goto err_out;
697 }
698
699skip_doorbell:
700 adapter->ahw.db_base = db_ptr;
701 adapter->ahw.db_len = db_len;
702 return 0;
703
704err_out:
705 netxen_cleanup_pci_map(adapter);
706 return err;
707}
708
2b9e62ee
DP		 709static void
710netxen_check_options(struct netxen_adapter *adapter)
711{
712 u32 fw_major, fw_minor, fw_build;
713 char brd_name[NETXEN_MAX_SHORT_NAME];
714 char serial_num[32];
715 int i, offset, val;
716 int *ptr32;
717 struct pci_dev *pdev = adapter->pdev;
718
719 adapter->driver_mismatch = 0;
720
721 ptr32 = (int *)&serial_num;
722 offset = NX_FW_SERIAL_NUM_OFFSET;
723 for (i = 0; i < 8; i++) {
724 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
725 dev_err(&pdev->dev, "error reading board info\n");
726 adapter->driver_mismatch = 1;
727 return;
728 }
729 ptr32[i] = cpu_to_le32(val);
730 offset += sizeof(u32);
731 }
732
733 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
734 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
735 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
736
737 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
738
739 if (adapter->portnum == 0) {
740 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
741
c25c0b9b
DP		 742 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
743 module_name(THIS_MODULE),
2b9e62ee
DP		 744 brd_name, serial_num, adapter->ahw.revision_id);
745 }
746
747 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
748 adapter->driver_mismatch = 1;
749 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
750 fw_major, fw_minor, fw_build);
751 return;
752 }
753
754 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
755 i = NXRD32(adapter, NETXEN_SRE_MISC);
756 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
757 }
758
759 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
760 fw_major, fw_minor, fw_build,
761 adapter->ahw.cut_through ? "cut-through" : "legacy");
762
763 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
764 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
765
766 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
767
768 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
769 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
770 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
771 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
772 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
773 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
774 }
775
776 adapter->msix_supported = 0;
777 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
778 adapter->msix_supported = !!use_msi_x;
779 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 780 } else {
781 u32 flashed_ver = 0;
782 netxen_rom_fast_read(adapter,
783 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
784 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
785
786 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
787 switch (adapter->ahw.board_type) {
788 case NETXEN_BRDTYPE_P2_SB31_10G:
789 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
790 adapter->msix_supported = !!use_msi_x;
791 adapter->rss_supported = !!use_msi_x;
792 break;
793 default:
794 break;
795 }
2b9e62ee
DP		 796 }
797 }
798
799 adapter->num_txd = MAX_CMD_DESCRIPTORS;
800
801 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
802 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
803 adapter->max_rds_rings = 3;
804 } else {
805 adapter->num_lro_rxd = 0;
806 adapter->max_rds_rings = 2;
807 }
808}
809
ba599d4f 810static int
6a581e93 811netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 812{
813 int val, err, first_boot;
814 struct pci_dev *pdev = adapter->pdev;
815
2b9e62ee
DP		 816 /* required for NX2031 dummy dma */
817 err = nx_set_dma_mask(adapter);
818 if (err)
819 return err;
820
6a581e93 821 if (!netxen_can_start_firmware(adapter))
96f2ebd2 822 goto wait_init;
0b72e659 823
f98a9f69 824 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 825
826 err = netxen_check_hw_init(adapter, first_boot);
827 if (err) {
828 dev_err(&pdev->dev, "error in init HW init sequence\n");
829 return err;
830 }
831
6a581e93 832 netxen_request_firmware(adapter);
f7185c71 833
67c38fc6 834 err = netxen_need_fw_reset(adapter);
1dbc84a7 835 if (err < 0)
db4cfd8a 836 goto err_out;
1dbc84a7 837 if (err == 0)
8f9b3f69 838 goto wait_init;
67c38fc6 839
ba599d4f 840 if (first_boot != 0x55555555) {
f98a9f69 841 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 842 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 843 msleep(1);
844 }
567c6c4e 845
f98a9f69 846 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 847 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
848 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
849
567c6c4e
DP		 850 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
851 netxen_set_port_mode(adapter);
852
db4cfd8a
DP		 853 err = netxen_load_firmware(adapter);
854 if (err)
855 goto err_out;
ba599d4f 856
6a581e93
DP		 857 netxen_release_firmware(adapter);
858
ba599d4f
DP		 859 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
860
861 /* Initialize multicast addr pool owners */
862 val = 0x7654;
1e2d0059 863 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 864 val |= 0x0f000000;
f98a9f69 865 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 866
867 }
868
83ac51fa 869 err = netxen_init_dummy_dma(adapter);
ba599d4f 870 if (err)
db4cfd8a 871 goto err_out;
ba599d4f
DP		 872
873 /*
874 * Tell the hardware our version number.
875 */
876 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
877 | ((_NETXEN_NIC_LINUX_MINOR << 8))
878 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 879 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 880
96f2ebd2 881wait_init:
ba599d4f
DP		 882 /* Handshake with the card before we register the devices. */
883 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
884 if (err) {
83ac51fa 885 netxen_free_dummy_dma(adapter);
db4cfd8a 886 goto err_out;
ba599d4f
DP		 887 }
888
8f9b3f69
AKS		 889 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
890
68b3cae0
DP		 891 nx_update_dma_mask(adapter);
892
6a581e93 893 netxen_check_options(adapter);
68b3cae0 894
74c520da
AKS		 895 adapter->need_fw_reset = 0;
896
ec5c50cb 897 /* fall through and release firmware */
db4cfd8a
DP		 898
899err_out:
900 netxen_release_firmware(adapter);
901 return err;
ba599d4f
DP		 902}
903
9f5bc7f1
DP		 904static int
905netxen_nic_request_irq(struct netxen_adapter *adapter)
906{
907 irq_handler_t handler;
d8b100c5
DP		 908 struct nx_host_sds_ring *sds_ring;
909 int err, ring;
910
9f5bc7f1
DP		 911 unsigned long flags = IRQF_SAMPLE_RANDOM;
912 struct net_device *netdev = adapter->netdev;
d8b100c5 913 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 914
9f5bc7f1
DP		 915 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
916 handler = netxen_msix_intr;
917 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
918 handler = netxen_msi_intr;
919 else {
920 flags |= IRQF_SHARED;
921 handler = netxen_intr;
922 }
923 adapter->irq = netdev->irq;
924
d8b100c5
DP		 925 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
926 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 927 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 928 err = request_irq(sds_ring->irq, handler,
929 flags, sds_ring->name, sds_ring);
930 if (err)
931 return err;
932 }
933
934 return 0;
935}
936
937static void
938netxen_nic_free_irq(struct netxen_adapter *adapter)
939{
940 int ring;
941 struct nx_host_sds_ring *sds_ring;
942
943 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
944
945 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
946 sds_ring = &recv_ctx->sds_rings[ring];
947 free_irq(sds_ring->irq, sds_ring);
948 }
9f5bc7f1
DP		 949}
950
ca2ef330
DP		 951static void
952netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
953{
954 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
955 adapter->coal.normal.data.rx_time_us =
956 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
957 adapter->coal.normal.data.rx_packets =
958 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
959 adapter->coal.normal.data.tx_time_us =
960 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
961 adapter->coal.normal.data.tx_packets =
962 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
963}
964
6f771419 965/* with rtnl_lock */
9f5bc7f1 966static int
6f771419 967__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 968{
969 int err;
970
db4cfd8a
DP		 971 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
972 return -EIO;
973
9f5bc7f1
DP		 974 err = adapter->init_port(adapter, adapter->physical_port);
975 if (err) {
976 printk(KERN_ERR "%s: Failed to initialize port %d\n",
977 netxen_nic_driver_name, adapter->portnum);
978 return err;
979 }
3d0a3cc9 980 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 981 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 982
3d0a3cc9
DP		 983 adapter->set_multi(netdev);
984 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 985
986 adapter->ahw.linkup = 0;
9f5bc7f1 987
d8b100c5
DP		 988 if (adapter->max_sds_rings > 1)
989 netxen_config_rss(adapter, 1);
9f5bc7f1 990
ca2ef330
DP		 991 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
992 netxen_config_intr_coalesce(adapter);
993
1bb482f8
NK		 994 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
995 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
996
b2af9cb0
DP		 997 netxen_napi_enable(adapter);
998
5103c9f7 999 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1000 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1001 else
1002 netxen_nic_set_link_parameters(adapter);
1003
6a581e93 1004 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1005 return 0;
1006}
1007
6f771419
AKS		 1008/* Usage: During resume and firmware recovery module.*/
1009
1010static inline int
1011netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1012{
1013 int err = 0;
1014
1015 rtnl_lock();
1016 if (netif_running(netdev))
1017 err = __netxen_nic_up(adapter, netdev);
1018 rtnl_unlock();
1019
1020 return err;
1021}
1022
1023/* with rtnl_lock */
9f5bc7f1 1024static void
6f771419 1025__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1026{
db4cfd8a
DP		 1027 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1028 return;
1029
f2251f66
AKS		 1030 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1031 return;
6a581e93 1032
f2251f66 1033 smp_mb();
b2af9cb0 1034 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1035 netif_carrier_off(netdev);
b2af9cb0 1036 netif_tx_disable(netdev);
9f5bc7f1
DP		 1037
1038 if (adapter->stop_port)
1039 adapter->stop_port(adapter);
1040
5cf4d323
DP		 1041 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1042 netxen_p3_free_mac_list(adapter);
1043
22b5794b
AKS		 1044 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1045
be339aee
DP		 1046 netxen_napi_disable(adapter);
1047
9f5bc7f1 1048 netxen_release_tx_buffers(adapter);
b2af9cb0 1049 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1050}
1051
6f771419
AKS		 1052/* Usage: During suspend and firmware recovery module */
1053
1054static inline void
1055netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1056{
1057 rtnl_lock();
1058 if (netif_running(netdev))
1059 __netxen_nic_down(adapter, netdev);
1060 rtnl_unlock();
1061
1062}
9f5bc7f1
DP		 1063
1064static int
1065netxen_nic_attach(struct netxen_adapter *adapter)
1066{
1067 struct net_device *netdev = adapter->netdev;
1068 struct pci_dev *pdev = adapter->pdev;
becf46a0 1069 int err, ring;
d8b100c5 1070 struct nx_host_rds_ring *rds_ring;
d877f1e3 1071 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1072
7042cd8f
AKS		 1073 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1074 return 0;
1075
9f5bc7f1 1076 err = netxen_init_firmware(adapter);
232e7d68
DP		 1077 if (err)
1078 return err;
1079
1080 err = netxen_napi_add(adapter, netdev);
1081 if (err)
1082 return err;
9f5bc7f1 1083
9f5bc7f1
DP		 1084 err = netxen_alloc_sw_resources(adapter);
1085 if (err) {
1086 printk(KERN_ERR "%s: Error in setting sw resources\n",
1087 netdev->name);
1088 return err;
1089 }
1090
9f5bc7f1
DP		 1091 err = netxen_alloc_hw_resources(adapter);
1092 if (err) {
1093 printk(KERN_ERR "%s: Error in setting hw resources\n",
1094 netdev->name);
1095 goto err_out_free_sw;
1096 }
1097
4f96b988 1098 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1099 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1100 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1101 crb_cmd_producer[adapter->portnum]);
1102 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1103 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1104
cb2107be
DP		 1105 tx_ring->producer = 0;
1106 tx_ring->sw_consumer = 0;
1107
1108 netxen_nic_update_cmd_producer(adapter, tx_ring);
1109 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1110 }
1111
d8b100c5
DP		 1112 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1113 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1114 netxen_post_rx_buffers(adapter, ring, rds_ring);
1115 }
9f5bc7f1
DP		 1116
1117 err = netxen_nic_request_irq(adapter);
1118 if (err) {
1119 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1120 netdev->name);
1121 goto err_out_free_rxbuf;
1122 }
1123
ca2ef330
DP		 1124 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1125 netxen_nic_init_coalesce_defaults(adapter);
1126
fa3ce355
NK		 1127 netxen_create_sysfs_entries(adapter);
1128
9f5bc7f1
DP		 1129 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1130 return 0;
1131
1132err_out_free_rxbuf:
1133 netxen_release_rx_buffers(adapter);
1134 netxen_free_hw_resources(adapter);
1135err_out_free_sw:
1136 netxen_free_sw_resources(adapter);
1137 return err;
1138}
1139
1140static void
1141netxen_nic_detach(struct netxen_adapter *adapter)
1142{
7042cd8f
AKS		 1143 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1144 return;
1145
fa3ce355
NK		 1146 netxen_remove_sysfs_entries(adapter);
1147
9f5bc7f1 1148 netxen_free_hw_resources(adapter);
cf981ffb 1149 netxen_release_rx_buffers(adapter);
be339aee 1150 netxen_nic_free_irq(adapter);
232e7d68 1151 netxen_napi_del(adapter);
9f5bc7f1
DP		 1152 netxen_free_sw_resources(adapter);
1153
1154 adapter->is_up = 0;
1155}
1156
7042cd8f
AKS		 1157int
1158netxen_nic_reset_context(struct netxen_adapter *adapter)
1159{
1160 int err = 0;
1161 struct net_device *netdev = adapter->netdev;
1162
6a581e93
DP		 1163 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1164 return -EBUSY;
1165
7042cd8f
AKS		 1166 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1167
6a581e93
DP		 1168 netif_device_detach(netdev);
1169
7042cd8f 1170 if (netif_running(netdev))
6f771419 1171 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1172
1173 netxen_nic_detach(adapter);
1174
6a581e93
DP		 1175 if (netif_running(netdev)) {
1176 err = netxen_nic_attach(adapter);
1177 if (!err)
6f771419 1178 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1179
6a581e93
DP		 1180 if (err)
1181 goto done;
1182 }
1183
1184 netif_device_attach(netdev);
7042cd8f 1185 }
6a581e93 1186
7042cd8f 1187done:
6a581e93 1188 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1189 return err;
1190}
1191
f17443f4
DP		 1192static int
1193netxen_setup_netdev(struct netxen_adapter *adapter,
1194 struct net_device *netdev)
1195{
1196 int err = 0;
1197 struct pci_dev *pdev = adapter->pdev;
1198
1199 adapter->rx_csum = 1;
1200 adapter->mc_enabled = 0;
1201 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1202 adapter->max_mc_count = 38;
1203 else
1204 adapter->max_mc_count = 16;
1205
1206 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1207 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1208
1209 netxen_nic_change_mtu(netdev, netdev->mtu);
1210
1211 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1212
1213 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1214 netdev->features |= (NETIF_F_GRO);
1215 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1216
1217 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1218 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1219 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1220 }
1221
1222 if (adapter->pci_using_dac) {
1223 netdev->features |= NETIF_F_HIGHDMA;
1224 netdev->vlan_features |= NETIF_F_HIGHDMA;
1225 }
1226
028afe71
DP		 1227 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1228 netdev->features |= (NETIF_F_HW_VLAN_TX);
1229
1bb482f8
NK		 1230 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1231 netdev->features |= NETIF_F_LRO;
1232
f17443f4
DP		 1233 netdev->irq = adapter->msix_entries[0].vector;
1234
74c520da 1235 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1236
1237 if (netxen_read_mac_addr(adapter))
1238 dev_warn(&pdev->dev, "failed to read mac addr\n");
1239
1240 netif_carrier_off(netdev);
1241 netif_stop_queue(netdev);
1242
1243 err = register_netdev(netdev);
1244 if (err) {
1245 dev_err(&pdev->dev, "failed to register net device\n");
1246 return err;
1247 }
1248
1249 return 0;
1250}
1251
dce87b96 1252#ifdef CONFIG_PCIEAER
1253static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1254{
1255 struct pci_dev *pdev = adapter->pdev;
1256 struct pci_dev *root = pdev->bus->self;
1257 u32 aer_pos;
1258
1259 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1260 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1261 return;
1262
1263 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1264 return;
1265
1266 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1267 if (!aer_pos)
1268 return;
1269
1270 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1271}
1272#endif
1273
3d396eb1
AK		 1274static int __devinit
1275netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1276{
1277 struct net_device *netdev = NULL;
1278 struct netxen_adapter *adapter = NULL;
2956640d 1279 int i = 0, err;
3176ff3e 1280 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1281 uint8_t revision_id;
3d396eb1 1282
688328c7
EB		 1283 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1284 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1285 "will not be enabled.\n",
c25c0b9b 1286 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1287 return -ENODEV;
1288 }
1289
3d396eb1
AK		 1290 if ((err = pci_enable_device(pdev)))
1291 return err;
2956640d 1292
3d396eb1
AK		 1293 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1294 err = -ENODEV;
1295 goto err_out_disable_pdev;
1296 }
1297
1298 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1299 goto err_out_disable_pdev;
1300
e87ad553
AKS		 1301 if (NX_IS_REVISION_P3(pdev->revision))
1302 pci_enable_pcie_error_reporting(pdev);
1303
3d396eb1 1304 pci_set_master(pdev);
3176ff3e
MT		 1305
1306 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1307 if(!netdev) {
f17443f4
DP		 1308 dev_err(&pdev->dev, "failed to allocate net_device\n");
1309 err = -ENOMEM;
3176ff3e
MT		 1310 goto err_out_free_res;
1311 }
1312
3176ff3e
MT		 1313 SET_NETDEV_DEV(netdev, &pdev->dev);
1314
4cf1653a 1315 adapter = netdev_priv(netdev);
2956640d
DP		 1316 adapter->netdev = netdev;
1317 adapter->pdev = pdev;
13ba9c77 1318 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1319
1320 revision_id = pdev->revision;
1321 adapter->ahw.revision_id = revision_id;
1322
f03b0ebd
DP		 1323 rwlock_init(&adapter->ahw.crb_lock);
1324 spin_lock_init(&adapter->ahw.mem_lock);
1325
d8b100c5 1326 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1327 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1328
97daee83
DP		 1329 err = netxen_setup_pci_map(adapter);
1330 if (err)
6c80b18d 1331 goto err_out_free_netdev;
3d396eb1 1332
2d1a3bbd 1333 /* This will be reset for mezz cards */
3176ff3e 1334 adapter->portnum = pci_func_id;
3176ff3e 1335
f17443f4
DP		 1336 err = netxen_nic_get_board_info(adapter);
1337 if (err) {
1338 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1339 goto err_out_iounmap;
1340 }
6c80b18d 1341
dce87b96 1342#ifdef CONFIG_PCIEAER
1343 netxen_mask_aer_correctable(adapter);
1344#endif
1345
13ba9c77 1346 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1347 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1348 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1349 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1350 if (pci_func_id >= 2)
13ba9c77 1351 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1352 break;
1353 default:
1354 break;
1355 }
13ba9c77 1356
6a581e93 1357 err = netxen_start_firmware(adapter);
0b72e659 1358 if (err)
8f9b3f69 1359 goto err_out_decr_ref;
f17443f4 1360
3d396eb1 1361 /*
6c80b18d 1362 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1363 */
dcd56fdb 1364 adapter->physical_port = adapter->portnum;
4f96b988 1365 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1366 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1367 if (i != 0x55555555)
1368 adapter->physical_port = i;
1369 }
6c80b18d 1370
6a581e93 1371 netxen_nic_clear_stats(adapter);
2956640d 1372
97daee83 1373 netxen_setup_intr(adapter);
2956640d 1374
f17443f4 1375 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1376 if (err)
2956640d 1377 goto err_out_disable_msi;
6c80b18d
MT		 1378
1379 pci_set_drvdata(pdev, adapter);
3d396eb1 1380
6a581e93
DP		 1381 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1382
1e2d0059 1383 switch (adapter->ahw.port_type) {
2956640d
DP		 1384 case NETXEN_NIC_GBE:
1385 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1386 adapter->netdev->name);
1387 break;
1388 case NETXEN_NIC_XGBE:
1389 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1390 adapter->netdev->name);
1391 break;
3d396eb1 1392 }
3d396eb1 1393
70f9cf89
DP		 1394 netxen_create_diag_entries(adapter);
1395
2956640d
DP		 1396 return 0;
1397
1398err_out_disable_msi:
97daee83 1399 netxen_teardown_intr(adapter);
6c80b18d 1400
83ac51fa 1401 netxen_free_dummy_dma(adapter);
3d396eb1 1402
8f9b3f69 1403err_out_decr_ref:
6a581e93
DP		 1404 nx_decr_dev_ref_cnt(adapter);
1405
2956640d 1406err_out_iounmap:
97daee83 1407 netxen_cleanup_pci_map(adapter);
cb8011ad 1408
6c80b18d
MT		 1409err_out_free_netdev:
1410 free_netdev(netdev);
1411
1412err_out_free_res:
3d396eb1 1413 pci_release_regions(pdev);
6c80b18d
MT		 1414
1415err_out_disable_pdev:
2956640d 1416 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1417 pci_disable_device(pdev);
1418 return err;
1419}
1420
1421static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1422{
1423 struct netxen_adapter *adapter;
3176ff3e 1424 struct net_device *netdev;
3d396eb1 1425
6c80b18d 1426 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1427 if (adapter == NULL)
1428 return;
1429
6c80b18d
MT		 1430 netdev = adapter->netdev;
1431
6a581e93
DP		 1432 netxen_cancel_fw_work(adapter);
1433
96acb6eb
DP		 1434 unregister_netdev(netdev);
1435
e424fa9d
AKS		 1436 cancel_work_sync(&adapter->tx_timeout_task);
1437
7042cd8f 1438 netxen_nic_detach(adapter);
3d396eb1 1439
6a581e93
DP		 1440 nx_decr_dev_ref_cnt(adapter);
1441
439b454e 1442 if (adapter->portnum == 0)
83ac51fa 1443 netxen_free_dummy_dma(adapter);
96acb6eb 1444
6a581e93
DP		 1445 clear_bit(__NX_RESETTING, &adapter->state);
1446
97daee83 1447 netxen_teardown_intr(adapter);
3052246c 1448
70f9cf89
DP		 1449 netxen_remove_diag_entries(adapter);
1450
97daee83 1451 netxen_cleanup_pci_map(adapter);
595e3fb8 1452
f7185c71
DP		 1453 netxen_release_firmware(adapter);
1454
e87ad553
AKS		 1455 if (NX_IS_REVISION_P3(pdev->revision))
1456 pci_disable_pcie_error_reporting(pdev);
1457
595e3fb8 1458 pci_release_regions(pdev);
3052246c 1459 pci_disable_device(pdev);
595e3fb8
MT		 1460 pci_set_drvdata(pdev, NULL);
1461
6c80b18d 1462 free_netdev(netdev);
3d396eb1 1463}
e87ad553
AKS		 1464
1465static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1466{
0b72e659
DP		 1467 struct net_device *netdev = adapter->netdev;
1468
1469 netif_device_detach(netdev);
1470
6a581e93
DP		 1471 netxen_cancel_fw_work(adapter);
1472
0b72e659
DP		 1473 if (netif_running(netdev))
1474 netxen_nic_down(adapter, netdev);
1475
e424fa9d
AKS		 1476 cancel_work_sync(&adapter->tx_timeout_task);
1477
7042cd8f 1478 netxen_nic_detach(adapter);
0b72e659 1479
22b5794b
AKS		 1480 if (adapter->portnum == 0)
1481 netxen_free_dummy_dma(adapter);
1482
6a581e93
DP		 1483 nx_decr_dev_ref_cnt(adapter);
1484
1485 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1486}
0b72e659 1487
e87ad553 1488static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1489{
1490 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1491 struct net_device *netdev = adapter->netdev;
1492 int err;
1493
0b72e659
DP		 1494 err = pci_enable_device(pdev);
1495 if (err)
1496 return err;
1497
bc86fcba
AKS		 1498 pci_set_power_state(pdev, PCI_D0);
1499 pci_set_master(pdev);
1500 pci_restore_state(pdev);
1501
907fa120 1502 adapter->ahw.crb_win = -1;
47abe356 1503 adapter->ahw.ocm_win = -1;
0b72e659 1504
6a581e93 1505 err = netxen_start_firmware(adapter);
0b72e659
DP		 1506 if (err) {
1507 dev_err(&pdev->dev, "failed to start firmware\n");
1508 return err;
1509 }
1510
1511 if (netif_running(netdev)) {
1512 err = netxen_nic_attach(adapter);
1513 if (err)
6a581e93 1514 goto err_out;
0b72e659
DP		 1515
1516 err = netxen_nic_up(adapter, netdev);
1517 if (err)
6a581e93 1518 goto err_out_detach;
0b72e659 1519
d0725e4d 1520 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1521 }
1522
bc86fcba 1523 netif_device_attach(netdev);
6a581e93 1524 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1525 return 0;
6a581e93
DP		 1526
1527err_out_detach:
1528 netxen_nic_detach(adapter);
1529err_out:
1530 nx_decr_dev_ref_cnt(adapter);
1531 return err;
0b72e659 1532}
e87ad553
AKS		 1533
1534static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1535 pci_channel_state_t state)
1536{
1537 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1538
1539 if (state == pci_channel_io_perm_failure)
1540 return PCI_ERS_RESULT_DISCONNECT;
1541
1542 if (nx_dev_request_aer(adapter))
1543 return PCI_ERS_RESULT_RECOVERED;
1544
1545 netxen_nic_detach_func(adapter);
1546
1547 pci_disable_device(pdev);
1548
1549 return PCI_ERS_RESULT_NEED_RESET;
1550}
1551
1552static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1553{
1554 int err = 0;
1555
1556 err = netxen_nic_attach_func(pdev);
1557
1558 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1559}
1560
1561static void netxen_io_resume(struct pci_dev *pdev)
1562{
1563 pci_cleanup_aer_uncorrect_error_status(pdev);
1564}
1565
1566static void netxen_nic_shutdown(struct pci_dev *pdev)
1567{
1568 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1569
1570 netxen_nic_detach_func(adapter);
1571
1572 if (pci_save_state(pdev))
1573 return;
1574
1575 if (netxen_nic_wol_supported(adapter)) {
1576 pci_enable_wake(pdev, PCI_D3cold, 1);
1577 pci_enable_wake(pdev, PCI_D3hot, 1);
1578 }
1579
1580 pci_disable_device(pdev);
1581}
1582
1583#ifdef CONFIG_PM
1584static int
1585netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1586{
1587 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1588 int retval;
1589
1590 netxen_nic_detach_func(adapter);
1591
1592 retval = pci_save_state(pdev);
1593 if (retval)
1594 return retval;
1595
1596 if (netxen_nic_wol_supported(adapter)) {
1597 pci_enable_wake(pdev, PCI_D3cold, 1);
1598 pci_enable_wake(pdev, PCI_D3hot, 1);
1599 }
1600
1601 pci_disable_device(pdev);
1602 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1603
1604 return 0;
1605}
1606
1607static int
1608netxen_nic_resume(struct pci_dev *pdev)
1609{
1610 return netxen_nic_attach_func(pdev);
1611}
01542cd1 1612#endif
0b72e659 1613
3d396eb1
AK		 1614static int netxen_nic_open(struct net_device *netdev)
1615{
4cf1653a 1616 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1617 int err = 0;
3d396eb1 1618
dcd56fdb
DP		 1619 if (adapter->driver_mismatch)
1620 return -EIO;
1621
7042cd8f
AKS		 1622 err = netxen_nic_attach(adapter);
1623 if (err)
1624 return err;
2956640d 1625
6f771419 1626 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1627 if (err)
1628 goto err_out;
05aaa02d 1629
dcd56fdb 1630 netif_start_queue(netdev);
3d396eb1
AK		 1631
1632 return 0;
2956640d 1633
9f5bc7f1
DP		 1634err_out:
1635 netxen_nic_detach(adapter);
2956640d 1636 return err;
3d396eb1
AK		 1637}
1638
1639/*
1640 * netxen_nic_close - Disables a network interface entry point
1641 */
1642static int netxen_nic_close(struct net_device *netdev)
1643{
3176ff3e 1644 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1645
6f771419 1646 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1647 return 0;
1648}
1649
1bcfd790
DP		 1650static void
1651netxen_tso_check(struct net_device *netdev,
1652 struct nx_host_tx_ring *tx_ring,
1653 struct cmd_desc_type0 *first_desc,
1654 struct sk_buff *skb)
cd1f8160 1655{
391587c3 1656 u8 opcode = TX_ETHER_PKT;
cdff1036 1657 __be16 protocol = skb->protocol;
028afe71 1658 u16 flags = 0, vid = 0;
1bcfd790 1659 u32 producer;
028afe71 1660 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1661 struct cmd_desc_type0 *hwdesc;
028afe71 1662 struct vlan_ethhdr *vh;
cdff1036 1663
09640e63 1664 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1665
1666 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1667 protocol = vh->h_vlan_encapsulated_proto;
1668 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1669
1670 } else if (vlan_tx_tag_present(skb)) {
1671
1672 flags = FLAGS_VLAN_OOB;
1673 vid = vlan_tx_tag_get(skb);
1674 netxen_set_tx_vlan_tci(first_desc, vid);
1675 vlan_oob = 1;
cdff1036 1676 }
cd1f8160 1677
391587c3
DP		 1678 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1679 skb_shinfo(skb)->gso_size > 0) {
1680
1bcfd790
DP		 1681 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1682
1683 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1684 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1685 if (vlan_oob) {
1686 first_desc->total_hdr_length += VLAN_HLEN;
1687 first_desc->tcp_hdr_offset = VLAN_HLEN;
1688 first_desc->ip_hdr_offset = VLAN_HLEN;
1689 /* Only in case of TSO on vlan device */
1690 flags |= FLAGS_VLAN_TAGGED;
1691 }
391587c3 1692
09640e63 1693 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1694 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1695 tso = 1;
cd1f8160
DP		 1696
1697 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1698 u8 l4proto;
1699
09640e63 1700 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1701 l4proto = ip_hdr(skb)->protocol;
1702
1703 if (l4proto == IPPROTO_TCP)
1704 opcode = TX_TCP_PKT;
1705 else if(l4proto == IPPROTO_UDP)
1706 opcode = TX_UDP_PKT;
09640e63 1707 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1708 l4proto = ipv6_hdr(skb)->nexthdr;
1709
1710 if (l4proto == IPPROTO_TCP)
1711 opcode = TX_TCPV6_PKT;
1712 else if(l4proto == IPPROTO_UDP)
1713 opcode = TX_UDPV6_PKT;
1714 }
cd1f8160 1715 }
028afe71
DP		 1716
1717 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1718 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1719 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1720
1721 if (!tso)
1722 return;
1723
1724 /* For LSO, we need to copy the MAC/IP/TCP headers into
1725 * the descriptor ring
1726 */
1727 producer = tx_ring->producer;
1728 copied = 0;
1729 offset = 2;
1730
028afe71
DP		 1731 if (vlan_oob) {
1732 /* Create a TSO vlan header template for firmware */
1733
1734 hwdesc = &tx_ring->desc_head[producer];
1735 tx_ring->cmd_buf_arr[producer].skb = NULL;
1736
1737 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1738 hdr_len + VLAN_HLEN);
1739
1740 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1741 skb_copy_from_linear_data(skb, vh, 12);
1742 vh->h_vlan_proto = htons(ETH_P_8021Q);
1743 vh->h_vlan_TCI = htons(vid);
1744 skb_copy_from_linear_data_offset(skb, 12,
1745 (char *)vh + 16, copy_len - 16);
1746
545eb370 1747 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1748 offset = 0;
1749
1750 producer = get_next_index(producer, tx_ring->num_desc);
1751 }
1752
1bcfd790
DP		 1753 while (copied < hdr_len) {
1754
1755 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1756 (hdr_len - copied));
1757
1758 hwdesc = &tx_ring->desc_head[producer];
1759 tx_ring->cmd_buf_arr[producer].skb = NULL;
1760
1761 skb_copy_from_linear_data_offset(skb, copied,
1762 (char *)hwdesc + offset, copy_len);
1763
1764 copied += copy_len;
1765 offset = 0;
1766
1767 producer = get_next_index(producer, tx_ring->num_desc);
1768 }
1769
1770 tx_ring->producer = producer;
1771 barrier();
cd1f8160
DP		 1772}
1773
ce644ed4
DP		 1774static int
1775netxen_map_tx_skb(struct pci_dev *pdev,
1776 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1777{
ce644ed4
DP		 1778 struct netxen_skb_frag *nf;
1779 struct skb_frag_struct *frag;
1780 int i, nr_frags;
1781 dma_addr_t map;
1782
1783 nr_frags = skb_shinfo(skb)->nr_frags;
1784 nf = &pbuf->frag_array[0];
1785
1786 map = pci_map_single(pdev, skb->data,
1787 skb_headlen(skb), PCI_DMA_TODEVICE);
1788 if (pci_dma_mapping_error(pdev, map))
1789 goto out_err;
6f703406 1790
ce644ed4
DP		 1791 nf->dma = map;
1792 nf->length = skb_headlen(skb);
1793
1794 for (i = 0; i < nr_frags; i++) {
1795 frag = &skb_shinfo(skb)->frags[i];
1796 nf = &pbuf->frag_array[i+1];
1797
1798 map = pci_map_page(pdev, frag->page, frag->page_offset,
1799 frag->size, PCI_DMA_TODEVICE);
1800 if (pci_dma_mapping_error(pdev, map))
1801 goto unwind;
1802
1803 nf->dma = map;
1804 nf->length = frag->size;
1805 }
1806
1807 return 0;
6f703406 1808
ce644ed4 1809unwind:
cf503e8f
DP		 1810 while (--i >= 0) {
1811 nf = &pbuf->frag_array[i+1];
ce644ed4 1812 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1813 }
ce644ed4
DP		 1814
1815 nf = &pbuf->frag_array[0];
1816 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1817
1818out_err:
1819 return -ENOMEM;
6f703406
DP		 1820}
1821
d32cc3d2
DP		 1822static inline void
1823netxen_clear_cmddesc(u64 *desc)
1824{
1bcfd790
DP		 1825 desc[0] = 0ULL;
1826 desc[2] = 0ULL;
d32cc3d2
DP		 1827}
1828
61357325 1829static netdev_tx_t
d32cc3d2 1830netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1831{
3176ff3e 1832 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1833 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1834 struct netxen_cmd_buffer *pbuf;
3d396eb1 1835 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1836 struct cmd_desc_type0 *hwdesc, *first_desc;
1837 struct pci_dev *pdev;
391587c3 1838 int i, k;
3d396eb1 1839
cb2107be 1840 u32 producer;
ce644ed4 1841 int frag_count, no_of_desc;
d877f1e3 1842 u32 num_txd = tx_ring->num_desc;
3d396eb1 1843
3d396eb1
AK		 1844 frag_count = skb_shinfo(skb)->nr_frags + 1;
1845
d877f1e3 1846 /* 4 fragments per cmd des */
3d396eb1 1847 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1848
7a9905e6 1849 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 1850 netif_stop_queue(netdev);
7a9905e6
RB		 1851 smp_mb();
1852 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1853 netif_start_queue(netdev);
1854 else
1855 return NETDEV_TX_BUSY;
53a01e00 1856 }
3d396eb1 1857
cb2107be 1858 producer = tx_ring->producer;
ce644ed4 1859 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1860
1bcfd790 1861 pdev = adapter->pdev;
391587c3 1862
ce644ed4 1863 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1864 goto drop_packet;
391587c3 1865
3d396eb1 1866 pbuf->skb = skb;
3d396eb1 1867 pbuf->frag_count = frag_count;
6f703406 1868
1bcfd790
DP		 1869 first_desc = hwdesc = &tx_ring->desc_head[producer];
1870 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1871
ce644ed4
DP		 1872 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1873 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1874
ce644ed4 1875 for (i = 0; i < frag_count; i++) {
3d396eb1 1876
ce644ed4
DP		 1877 k = i % 4;
1878
1879 if ((k == 0) && (i > 0)) {
1880 /* move to next desc.*/
ba53e6b4 1881 producer = get_next_index(producer, num_txd);
d877f1e3 1882 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1883 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1884 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1885 }
3d396eb1 1886
ce644ed4 1887 buffrag = &pbuf->frag_array[i];
3d396eb1 1888
ce644ed4 1889 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1890 switch (k) {
1891 case 0:
ce644ed4 1892 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1893 break;
1894 case 1:
ce644ed4 1895 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1896 break;
1897 case 2:
ce644ed4 1898 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1899 break;
1900 case 3:
ce644ed4 1901 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1902 break;
1903 }
3d396eb1 1904 }
ce644ed4 1905
1bcfd790 1906 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1907
1bcfd790 1908 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1909
cb2107be 1910 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1911
1bcfd790 1912 adapter->stats.txbytes += skb->len;
ba53e6b4 1913 adapter->stats.xmitcalled++;
3d396eb1 1914
3d396eb1 1915 return NETDEV_TX_OK;
6f703406
DP		 1916
1917drop_packet:
1918 adapter->stats.txdropped++;
1919 dev_kfree_skb_any(skb);
1920 return NETDEV_TX_OK;
3d396eb1
AK		 1921}
1922
a97342f9
DP		 1923static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1924{
1925 struct net_device *netdev = adapter->netdev;
1926 uint32_t temp, temp_state, temp_val;
1927 int rv = 0;
1928
f98a9f69 1929 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1930
1931 temp_state = nx_get_temp_state(temp);
1932 temp_val = nx_get_temp_val(temp);
1933
1934 if (temp_state == NX_TEMP_PANIC) {
1935 printk(KERN_ALERT
1936 "%s: Device temperature %d degrees C exceeds"
1937 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1938 netdev->name, temp_val);
a97342f9
DP		 1939 rv = 1;
1940 } else if (temp_state == NX_TEMP_WARN) {
1941 if (adapter->temp == NX_TEMP_NORMAL) {
1942 printk(KERN_ALERT
1943 "%s: Device temperature %d degrees C "
1944 "exceeds operating range."
1945 " Immediate action needed.\n",
e4135c2d 1946 netdev->name, temp_val);
a97342f9
DP		 1947 }
1948 } else {
1949 if (adapter->temp == NX_TEMP_WARN) {
1950 printk(KERN_INFO
1951 "%s: Device temperature is now %d degrees C"
e4135c2d 1952 " in normal range.\n", netdev->name,
a97342f9
DP		 1953 temp_val);
1954 }
1955 }
1956 adapter->temp = temp_state;
1957 return rv;
1958}
1959
3bf26ce3 1960void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1961{
1962 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1963
1964 if (adapter->ahw.linkup && !linkup) {
1965 printk(KERN_INFO "%s: %s NIC Link is down\n",
1966 netxen_nic_driver_name, netdev->name);
1967 adapter->ahw.linkup = 0;
1968 if (netif_running(netdev)) {
1969 netif_carrier_off(netdev);
1970 netif_stop_queue(netdev);
1971 }
e424fa9d 1972 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1973 } else if (!adapter->ahw.linkup && linkup) {
1974 printk(KERN_INFO "%s: %s NIC Link is up\n",
1975 netxen_nic_driver_name, netdev->name);
1976 adapter->ahw.linkup = 1;
1977 if (netif_running(netdev)) {
1978 netif_carrier_on(netdev);
1979 netif_wake_queue(netdev);
1980 }
e424fa9d 1981 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1982 }
1983}
1984
3bf26ce3
DP		 1985static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1986{
1987 u32 val, port, linkup;
1988
1989 port = adapter->physical_port;
1990
1991 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1992 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1993 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1994 linkup = (val == XG_LINK_UP_P3);
1995 } else {
f98a9f69 1996 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 1997 val = (val >> port*8) & 0xff;
1998 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 1999 }
2000
2001 netxen_advert_link_change(adapter, linkup);
2002}
2003
3d396eb1
AK		 2004static void netxen_tx_timeout(struct net_device *netdev)
2005{
e424fa9d 2006 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2007
6a581e93
DP		 2008 if (test_bit(__NX_RESETTING, &adapter->state))
2009 return;
2010
f17443f4 2011 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2012 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2013}
2014
74c520da 2015static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2016{
4790654c 2017 struct netxen_adapter *adapter =
3176ff3e 2018 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2019
b2af9cb0
DP		 2020 if (!netif_running(adapter->netdev))
2021 return;
2022
74c520da 2023 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2024 return;
2025
74c520da
AKS		 2026 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2027 goto request_reset;
2028
16d884bd 2029 rtnl_lock();
74c520da
AKS		 2030 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2031 /* try to scrub interrupt */
2032 netxen_napi_disable(adapter);
ba53e6b4 2033
74c520da
AKS		 2034 netxen_napi_enable(adapter);
2035
2036 netif_wake_queue(adapter->netdev);
2037
a598ae17 2038 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2039 } else {
a598ae17 2040 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2041 if (netxen_nic_reset_context(adapter)) {
2042 rtnl_unlock();
2043 goto request_reset;
74c520da 2044 }
74c520da 2045 }
16d884bd
AKS		 2046 adapter->netdev->trans_start = jiffies;
2047 rtnl_unlock();
2048 return;
74c520da
AKS		 2049
2050request_reset:
2051 adapter->need_fw_reset = 1;
ff8a306d 2052 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2053}
2054
a97342f9
DP		 2055struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2056{
2057 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 2058 struct net_device_stats *stats = &netdev->stats;
a97342f9 2059
1bb482f8 2060 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2061 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2062 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2063 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2064 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2065 stats->tx_dropped = adapter->stats.txdropped;
2066
2067 return stats;
2068}
2069
e4c93c81 2070static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2071{
d8b100c5
DP		 2072 struct nx_host_sds_ring *sds_ring = data;
2073 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2074 u32 status = 0;
2075
195c5f98 2076 status = readl(adapter->isr_int_vec);
d71e1be8 2077
195c5f98 2078 if (!(status & adapter->int_vec_bit))
05aaa02d 2079 return IRQ_NONE;
e01872af 2080
195c5f98 2081 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2082 /* check interrupt state machine, to be sure */
195c5f98 2083 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2084 if (!ISR_LEGACY_INT_TRIGGERED(status))
2085 return IRQ_NONE;
2086
092bc571
DP		 2087 } else {
2088 unsigned long our_int = 0;
d71e1be8 2089
195c5f98 2090 our_int = readl(adapter->crb_int_state_reg);
092bc571 2091
d71e1be8 2092 /* not our interrupt */
092bc571 2093 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2094 return IRQ_NONE;
2095
092bc571 2096 /* claim interrupt */
195c5f98 2097 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2098
195c5f98 2099 /* clear interrupt */
d8b100c5 2100 netxen_nic_disable_int(sds_ring);
195c5f98 2101 }
092bc571 2102
195c5f98 2103 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2104 /* read twice to ensure write is flushed */
195c5f98
AKS		 2105 readl(adapter->isr_int_vec);
2106 readl(adapter->isr_int_vec);
092bc571 2107
d8b100c5 2108 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2109
2110 return IRQ_HANDLED;
2111}
2112
e4c93c81 2113static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2114{
d8b100c5
DP		 2115 struct nx_host_sds_ring *sds_ring = data;
2116 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2117
092bc571 2118 /* clear interrupt */
195c5f98 2119 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2120
d8b100c5 2121 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2122 return IRQ_HANDLED;
2123}
2124
b3df68f8
DP		 2125static irqreturn_t netxen_msix_intr(int irq, void *data)
2126{
d8b100c5 2127 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2128
d8b100c5 2129 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2130 return IRQ_HANDLED;
2131}
2132
bea3348e 2133static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2134{
d8b100c5
DP		 2135 struct nx_host_sds_ring *sds_ring =
2136 container_of(napi, struct nx_host_sds_ring, napi);
2137
2138 struct netxen_adapter *adapter = sds_ring->adapter;
2139
05aaa02d 2140 int tx_complete;
bea3348e 2141 int work_done;
3d396eb1 2142
05aaa02d 2143 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2144
d8b100c5 2145 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2146
05aaa02d 2147 if ((work_done < budget) && tx_complete) {
d8b100c5 2148 napi_complete(&sds_ring->napi);
f2251f66 2149 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2150 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2151 }
2152
bea3348e 2153 return work_done;
3d396eb1
AK		 2154}
2155
2156#ifdef CONFIG_NET_POLL_CONTROLLER
2157static void netxen_nic_poll_controller(struct net_device *netdev)
2158{
7b589a35
YL		 2159 int ring;
2160 struct nx_host_sds_ring *sds_ring;
3176ff3e 2161 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2162 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2163
3d396eb1 2164 disable_irq(adapter->irq);
7b589a35
YL		 2165 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2166 sds_ring = &recv_ctx->sds_rings[ring];
2167 netxen_intr(adapter->irq, sds_ring);
2168 }
3d396eb1
AK		 2169 enable_irq(adapter->irq);
2170}
2171#endif
3d396eb1 2172
6a581e93
DP		 2173static int
2174nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2175{
2176 int count;
2177 if (netxen_api_lock(adapter))
2178 return -EIO;
2179
2180 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2181
2182 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2183
2184 netxen_api_unlock(adapter);
2185 return count;
2186}
2187
2188static int
2189nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2190{
2191 int count;
2192 if (netxen_api_lock(adapter))
2193 return -EIO;
2194
2195 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2196 WARN_ON(count == 0);
2197
2198 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2199
2200 if (count == 0)
2201 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2202
2203 netxen_api_unlock(adapter);
2204 return count;
2205}
2206
e87ad553
AKS		 2207static int
2208nx_dev_request_aer(struct netxen_adapter *adapter)
2209{
2210 u32 state;
2211 int ret = -EINVAL;
2212
2213 if (netxen_api_lock(adapter))
2214 return ret;
2215
2216 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2217
2218 if (state == NX_DEV_NEED_AER)
2219 ret = 0;
2220 else if (state == NX_DEV_READY) {
2221 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2222 ret = 0;
2223 }
2224
2225 netxen_api_unlock(adapter);
2226 return ret;
2227}
2228
2229static int
74c520da
AKS		 2230nx_dev_request_reset(struct netxen_adapter *adapter)
2231{
2232 u32 state;
e87ad553 2233 int ret = -EINVAL;
74c520da
AKS		 2234
2235 if (netxen_api_lock(adapter))
e87ad553 2236 return ret;
74c520da
AKS		 2237
2238 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2239
e87ad553
AKS		 2240 if (state == NX_DEV_NEED_RESET)
2241 ret = 0;
2242 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2243 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
e87ad553
AKS		 2244 ret = 0;
2245 }
74c520da
AKS		 2246
2247 netxen_api_unlock(adapter);
e87ad553
AKS		 2248
2249 return ret;
74c520da
AKS		 2250}
2251
6a581e93
DP		 2252static int
2253netxen_can_start_firmware(struct netxen_adapter *adapter)
2254{
2255 int count;
2256 int can_start = 0;
2257
2258 if (netxen_api_lock(adapter))
2259 return 0;
2260
2261 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2262
2263 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2264 count = 0;
2265
2266 if (count == 0) {
2267 can_start = 1;
2268 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2269 }
2270
2271 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2272
2273 netxen_api_unlock(adapter);
2274
2275 return can_start;
2276}
2277
2278static void
2279netxen_schedule_work(struct netxen_adapter *adapter,
2280 work_func_t func, int delay)
2281{
2282 INIT_DELAYED_WORK(&adapter->fw_work, func);
2283 schedule_delayed_work(&adapter->fw_work, delay);
2284}
2285
2286static void
2287netxen_cancel_fw_work(struct netxen_adapter *adapter)
2288{
2289 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2290 msleep(10);
2291
2292 cancel_delayed_work_sync(&adapter->fw_work);
2293}
2294
2295static void
2296netxen_attach_work(struct work_struct *work)
2297{
2298 struct netxen_adapter *adapter = container_of(work,
2299 struct netxen_adapter, fw_work.work);
2300 struct net_device *netdev = adapter->netdev;
2301 int err = 0;
2302
2303 if (netif_running(netdev)) {
2304 err = netxen_nic_attach(adapter);
2305 if (err)
2306 goto done;
2307
2308 err = netxen_nic_up(adapter, netdev);
2309 if (err) {
2310 netxen_nic_detach(adapter);
2311 goto done;
2312 }
2313
d0725e4d 2314 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2315 }
2316
2317 netif_device_attach(netdev);
2318
2319done:
2320 adapter->fw_fail_cnt = 0;
2321 clear_bit(__NX_RESETTING, &adapter->state);
2322 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2323}
2324
2325static void
2326netxen_fwinit_work(struct work_struct *work)
2327{
2328 struct netxen_adapter *adapter = container_of(work,
2329 struct netxen_adapter, fw_work.work);
2330 int dev_state;
2331
2332 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2333
2334 switch (dev_state) {
2335 case NX_DEV_COLD:
2336 case NX_DEV_READY:
74c520da
AKS		 2337 if (!netxen_start_firmware(adapter)) {
2338 netxen_schedule_work(adapter, netxen_attach_work, 0);
2339 return;
2340 }
2341 break;
6a581e93 2342
6b50ea15 2343 case NX_DEV_NEED_RESET:
6a581e93
DP		 2344 case NX_DEV_INITALIZING:
2345 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2346 netxen_schedule_work(adapter,
2347 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2348 return;
2349 }
6a581e93
DP		 2350
2351 case NX_DEV_FAILED:
2352 default:
8f9b3f69 2353 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2354 break;
2355 }
2356
6a581e93
DP		 2357 clear_bit(__NX_RESETTING, &adapter->state);
2358}
2359
2360static void
2361netxen_detach_work(struct work_struct *work)
2362{
2363 struct netxen_adapter *adapter = container_of(work,
2364 struct netxen_adapter, fw_work.work);
2365 struct net_device *netdev = adapter->netdev;
2366 int ref_cnt, delay;
2367 u32 status;
2368
2369 netif_device_detach(netdev);
2370
6f771419 2371 netxen_nic_down(adapter, netdev);
6a581e93 2372
e15eec28 2373 rtnl_lock();
6a581e93 2374 netxen_nic_detach(adapter);
e15eec28 2375 rtnl_unlock();
6a581e93
DP		 2376
2377 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2378
6a581e93 2379 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2380 goto err_ret;
6a581e93
DP		 2381
2382 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2383 goto err_ret;
2384
2385 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2386
6b50ea15
AKS		 2387 if (ref_cnt == -EIO)
2388 goto err_ret;
2389
6a581e93
DP		 2390 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2391
2392 adapter->fw_wait_cnt = 0;
2393 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2394
2395 return;
2396
2397err_ret:
2398 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2399}
2400
2401static int
2402netxen_check_health(struct netxen_adapter *adapter)
2403{
2404 u32 state, heartbit;
2405 struct net_device *netdev = adapter->netdev;
2406
e87ad553
AKS		 2407 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2408 if (state == NX_DEV_NEED_AER)
2409 return 0;
2410
6a581e93
DP		 2411 if (netxen_nic_check_temp(adapter))
2412 goto detach;
2413
74c520da 2414 if (adapter->need_fw_reset) {
e87ad553
AKS		 2415 if (nx_dev_request_reset(adapter))
2416 return 0;
74c520da
AKS		 2417 goto detach;
2418 }
2419
e87ad553
AKS		 2420 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2421 * 1. Tx timeout 2. Fw hang
2422 * Send request to destroy context in case of tx timeout only
2423 * and doesn't required in case of Fw hang
2424 */
6a808c6c
AKS		 2425 if (state == NX_DEV_NEED_RESET) {
2426 adapter->need_fw_reset = 1;
e87ad553
AKS		 2427 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2428 goto detach;
6a808c6c 2429 }
6a581e93
DP		 2430
2431 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2432 return 0;
2433
2434 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2435 if (heartbit != adapter->heartbit) {
2436 adapter->heartbit = heartbit;
2437 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2438 if (adapter->need_fw_reset)
2439 goto detach;
6a581e93
DP		 2440 return 0;
2441 }
2442
2443 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2444 return 0;
2445
e87ad553
AKS		 2446 if (nx_dev_request_reset(adapter))
2447 return 0;
2448
6a581e93
DP		 2449 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2450
2451 dev_info(&netdev->dev, "firmware hang detected\n");
2452
2453detach:
caa2dd53
NK		 2454 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2455 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2456 netxen_schedule_work(adapter, netxen_detach_work, 0);
2457 return 1;
2458}
2459
2460static void
2461netxen_fw_poll_work(struct work_struct *work)
2462{
2463 struct netxen_adapter *adapter = container_of(work,
2464 struct netxen_adapter, fw_work.work);
2465
2466 if (test_bit(__NX_RESETTING, &adapter->state))
2467 goto reschedule;
2468
2469 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2470 if (!adapter->has_link_events) {
2471
2472 netxen_nic_handle_phy_intr(adapter);
2473
2474 if (adapter->link_changed)
2475 netxen_nic_set_link_parameters(adapter);
2476 }
2477 }
2478
2479 if (netxen_check_health(adapter))
2480 return;
2481
2482reschedule:
2483 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2484}
2485
fa3ce355
NK		 2486static ssize_t
2487netxen_store_bridged_mode(struct device *dev,
2488 struct device_attribute *attr, const char *buf, size_t len)
2489{
2490 struct net_device *net = to_net_dev(dev);
2491 struct netxen_adapter *adapter = netdev_priv(net);
2492 unsigned long new;
2493 int ret = -EINVAL;
2494
2495 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2496 goto err_out;
2497
2498 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2499 goto err_out;
2500
2501 if (strict_strtoul(buf, 2, &new))
2502 goto err_out;
2503
2504 if (!netxen_config_bridged_mode(adapter, !!new))
2505 ret = len;
2506
2507err_out:
2508 return ret;
2509}
2510
2511static ssize_t
2512netxen_show_bridged_mode(struct device *dev,
2513 struct device_attribute *attr, char *buf)
2514{
2515 struct net_device *net = to_net_dev(dev);
2516 struct netxen_adapter *adapter;
2517 int bridged_mode = 0;
2518
2519 adapter = netdev_priv(net);
2520
2521 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2522 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2523
2524 return sprintf(buf, "%d\n", bridged_mode);
2525}
2526
2527static struct device_attribute dev_attr_bridged_mode = {
2528 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2529 .show = netxen_show_bridged_mode,
2530 .store = netxen_store_bridged_mode,
2531};
2532
70f9cf89
DP		 2533static ssize_t
2534netxen_store_diag_mode(struct device *dev,
2535 struct device_attribute *attr, const char *buf, size_t len)
2536{
2537 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2538 unsigned long new;
2539
2540 if (strict_strtoul(buf, 2, &new))
2541 return -EINVAL;
2542
2543 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2544 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2545
2546 return len;
2547}
2548
2549static ssize_t
2550netxen_show_diag_mode(struct device *dev,
2551 struct device_attribute *attr, char *buf)
2552{
2553 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2554
2555 return sprintf(buf, "%d\n",
2556 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2557}
2558
2559static struct device_attribute dev_attr_diag_mode = {
2560 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2561 .show = netxen_show_diag_mode,
2562 .store = netxen_store_diag_mode,
2563};
2564
2565static int
2566netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2567 loff_t offset, size_t size)
2568{
0b9715e6
AKS		 2569 size_t crb_size = 4;
2570
70f9cf89
DP		 2571 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2572 return -EIO;
2573
0b9715e6
AKS		 2574 if (offset < NETXEN_PCI_CRBSPACE) {
2575 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2576 return -EINVAL;
70f9cf89 2577
0b9715e6
AKS		 2578 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2579 NETXEN_PCI_CAMQM_2M_END))
2580 crb_size = 8;
2581 else
2582 return -EINVAL;
2583 }
2584
2585 if ((size != crb_size) || (offset & (crb_size-1)))
2586 return -EINVAL;
70f9cf89
DP		 2587
2588 return 0;
2589}
2590
2591static ssize_t
2c3c8bea
CW		 2592netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2593 struct bin_attribute *attr,
70f9cf89
DP		 2594 char *buf, loff_t offset, size_t size)
2595{
2596 struct device *dev = container_of(kobj, struct device, kobj);
2597 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2598 u32 data;
0b9715e6 2599 u64 qmdata;
70f9cf89
DP		 2600 int ret;
2601
2602 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2603 if (ret != 0)
2604 return ret;
2605
0b9715e6
AKS		 2606 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2607 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2608 NETXEN_PCI_CAMQM_2M_END)) {
2609 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2610 memcpy(buf, &qmdata, size);
2611 } else {
2612 data = NXRD32(adapter, offset);
2613 memcpy(buf, &data, size);
2614 }
2615
70f9cf89
DP		 2616 return size;
2617}
2618
2619static ssize_t
2c3c8bea
CW		 2620netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2621 struct bin_attribute *attr,
70f9cf89
DP		 2622 char *buf, loff_t offset, size_t size)
2623{
2624 struct device *dev = container_of(kobj, struct device, kobj);
2625 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2626 u32 data;
0b9715e6 2627 u64 qmdata;
70f9cf89
DP		 2628 int ret;
2629
2630 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2631 if (ret != 0)
2632 return ret;
2633
0b9715e6
AKS		 2634 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2635 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2636 NETXEN_PCI_CAMQM_2M_END)) {
2637 memcpy(&qmdata, buf, size);
2638 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2639 } else {
2640 memcpy(&data, buf, size);
2641 NXWR32(adapter, offset, data);
2642 }
2643
70f9cf89
DP		 2644 return size;
2645}
2646
2647static int
2648netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2649 loff_t offset, size_t size)
2650{
2651 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2652 return -EIO;
2653
2654 if ((size != 8) || (offset & 0x7))
2655 return -EIO;
2656
2657 return 0;
2658}
2659
2660static ssize_t
2c3c8bea
CW		 2661netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2662 struct bin_attribute *attr,
70f9cf89
DP		 2663 char *buf, loff_t offset, size_t size)
2664{
2665 struct device *dev = container_of(kobj, struct device, kobj);
2666 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2667 u64 data;
2668 int ret;
2669
2670 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2671 if (ret != 0)
2672 return ret;
2673
2674 if (adapter->pci_mem_read(adapter, offset, &data))
2675 return -EIO;
2676
2677 memcpy(buf, &data, size);
2678
2679 return size;
2680}
2681
2c3c8bea 2682static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2683 struct bin_attribute *attr, char *buf,
2684 loff_t offset, size_t size)
2685{
2686 struct device *dev = container_of(kobj, struct device, kobj);
2687 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2688 u64 data;
2689 int ret;
2690
2691 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2692 if (ret != 0)
2693 return ret;
2694
2695 memcpy(&data, buf, size);
2696
2697 if (adapter->pci_mem_write(adapter, offset, data))
2698 return -EIO;
2699
2700 return size;
2701}
2702
2703
2704static struct bin_attribute bin_attr_crb = {
2705 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2706 .size = 0,
2707 .read = netxen_sysfs_read_crb,
2708 .write = netxen_sysfs_write_crb,
2709};
2710
2711static struct bin_attribute bin_attr_mem = {
2712 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2713 .size = 0,
2714 .read = netxen_sysfs_read_mem,
2715 .write = netxen_sysfs_write_mem,
2716};
2717
caa2dd53 2718
fa3ce355
NK		 2719static void
2720netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2721{
2722 struct net_device *netdev = adapter->netdev;
2723 struct device *dev = &netdev->dev;
2724
2725 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2726 /* bridged_mode control */
2727 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2728 dev_warn(&netdev->dev,
2729 "failed to create bridged_mode sysfs entry\n");
2730 }
2731 }
2732}
2733
2734static void
2735netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2736{
2737 struct net_device *netdev = adapter->netdev;
2738 struct device *dev = &netdev->dev;
2739
2740 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2741 device_remove_file(dev, &dev_attr_bridged_mode);
2742}
2743
70f9cf89
DP		 2744static void
2745netxen_create_diag_entries(struct netxen_adapter *adapter)
2746{
2747 struct pci_dev *pdev = adapter->pdev;
2748 struct device *dev;
2749
2750 dev = &pdev->dev;
2751 if (device_create_file(dev, &dev_attr_diag_mode))
2752 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2753 if (device_create_bin_file(dev, &bin_attr_crb))
2754 dev_info(dev, "failed to create crb sysfs entry\n");
2755 if (device_create_bin_file(dev, &bin_attr_mem))
2756 dev_info(dev, "failed to create mem sysfs entry\n");
2757}
2758
2759
2760static void
2761netxen_remove_diag_entries(struct netxen_adapter *adapter)
2762{
2763 struct pci_dev *pdev = adapter->pdev;
2764 struct device *dev = &pdev->dev;
2765
2766 device_remove_file(dev, &dev_attr_diag_mode);
2767 device_remove_bin_file(dev, &bin_attr_crb);
2768 device_remove_bin_file(dev, &bin_attr_mem);
2769}
2770
044824d9
DP		 2771#ifdef CONFIG_INET
2772
6598b169
DP		 2773#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2774
2775static int
2776netxen_destip_supported(struct netxen_adapter *adapter)
2777{
2778 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2779 return 0;
2780
2781 if (adapter->ahw.cut_through)
2782 return 0;
2783
2784 return 1;
2785}
2786
d0725e4d
AKS		 2787static void
2788netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2789{
2790 struct in_device *indev;
2791 struct netxen_adapter *adapter = netdev_priv(dev);
2792
3db76755 2793 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2794 return;
2795
2796 indev = in_dev_get(dev);
2797 if (!indev)
2798 return;
2799
2800 for_ifa(indev) {
2801 switch (event) {
2802 case NETDEV_UP:
2803 netxen_config_ipaddr(adapter,
2804 ifa->ifa_address, NX_IP_UP);
2805 break;
2806 case NETDEV_DOWN:
2807 netxen_config_ipaddr(adapter,
2808 ifa->ifa_address, NX_IP_DOWN);
2809 break;
2810 default:
2811 break;
2812 }
2813 } endfor_ifa(indev);
2814
2815 in_dev_put(indev);
d0725e4d
AKS		 2816}
2817
6598b169
DP		 2818static int netxen_netdev_event(struct notifier_block *this,
2819 unsigned long event, void *ptr)
2820{
2821 struct netxen_adapter *adapter;
2822 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2823
2824recheck:
2825 if (dev == NULL)
2826 goto done;
2827
2828 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2829 dev = vlan_dev_real_dev(dev);
2830 goto recheck;
2831 }
2832
2833 if (!is_netxen_netdev(dev))
2834 goto done;
2835
2836 adapter = netdev_priv(dev);
2837
d0725e4d 2838 if (!adapter)
6598b169
DP		 2839 goto done;
2840
2841 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2842 goto done;
2843
d0725e4d 2844 netxen_config_indev_addr(dev, event);
6598b169
DP		 2845done:
2846 return NOTIFY_DONE;
2847}
2848
2849static int
2850netxen_inetaddr_event(struct notifier_block *this,
2851 unsigned long event, void *ptr)
2852{
2853 struct netxen_adapter *adapter;
2854 struct net_device *dev;
2855
2856 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2857
2858 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2859
2860recheck:
2861 if (dev == NULL || !netif_running(dev))
2862 goto done;
2863
2864 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2865 dev = vlan_dev_real_dev(dev);
2866 goto recheck;
2867 }
2868
2869 if (!is_netxen_netdev(dev))
2870 goto done;
2871
2872 adapter = netdev_priv(dev);
2873
2874 if (!adapter || !netxen_destip_supported(adapter))
2875 goto done;
2876
2877 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2878 goto done;
2879
2880 switch (event) {
2881 case NETDEV_UP:
2882 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2883 break;
2884 case NETDEV_DOWN:
2885 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2886 break;
2887 default:
2888 break;
2889 }
2890
2891done:
2892 return NOTIFY_DONE;
2893}
2894
2895static struct notifier_block netxen_netdev_cb = {
2896 .notifier_call = netxen_netdev_event,
2897};
2898
2899static struct notifier_block netxen_inetaddr_cb = {
2900 .notifier_call = netxen_inetaddr_event,
2901};
9feae56c
RD		 2902#else
2903static void
2904netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2905{ }
044824d9 2906#endif
6598b169 2907
e87ad553
AKS		 2908static struct pci_error_handlers netxen_err_handler = {
2909 .error_detected = netxen_io_error_detected,
2910 .slot_reset = netxen_io_slot_reset,
2911 .resume = netxen_io_resume,
2912};
2913
3d396eb1
AK		 2914static struct pci_driver netxen_driver = {
2915 .name = netxen_nic_driver_name,
2916 .id_table = netxen_pci_tbl,
2917 .probe = netxen_nic_probe,
0b72e659 2918 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2919#ifdef CONFIG_PM
0b72e659 2920 .suspend = netxen_nic_suspend,
22b5794b 2921 .resume = netxen_nic_resume,
01542cd1 2922#endif
e87ad553
AKS		 2923 .shutdown = netxen_nic_shutdown,
2924 .err_handler = &netxen_err_handler
3d396eb1
AK		 2925};
2926
3d396eb1
AK		 2927static int __init netxen_init_module(void)
2928{
ff4fbd43
DP		 2929 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2930
044824d9 2931#ifdef CONFIG_INET
6598b169
DP		 2932 register_netdevice_notifier(&netxen_netdev_cb);
2933 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2934#endif
184231bd 2935 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2936}
2937
2938module_init(netxen_init_module);
2939
2940static void __exit netxen_exit_module(void)
2941{
3d396eb1 2942 pci_unregister_driver(&netxen_driver);
6598b169 2943
044824d9 2944#ifdef CONFIG_INET
6598b169
DP		 2945 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2946 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2947#endif
3d396eb1
AK		 2948}
2949
2950module_exit(netxen_exit_module);
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