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netxen_nic: Fix the tx queue manipulation bug in netxen_nic_probe
[net-next-2.6.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 97static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
7e12bb0a 98static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
99static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 100
3d396eb1 101/* PCI Device ID Table */
70081ac5 102#define ENTRY(device) \
040dec3b 103 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 104 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
105
a3aa1884 106static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 107 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
108 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
109 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
110 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
111 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
112 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
113 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
114 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 115 {0,}
116};
117
118MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
119
7830b22c
DP		 120static uint32_t crb_cmd_producer[4] = {
121 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
122 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
123};
124
c9fc891f 125void
3ce06a32 126netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 127 struct nx_host_tx_ring *tx_ring)
3176ff3e 128{
195c5f98 129 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 130}
131
7830b22c
DP		 132static uint32_t crb_cmd_consumer[4] = {
133 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
134 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
135};
136
3ce06a32
DP		 137static inline void
138netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 139 struct nx_host_tx_ring *tx_ring)
3176ff3e 140{
195c5f98 141 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 142}
143
2956640d 144static uint32_t msi_tgt_status[8] = {
443be796 145 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 146 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
147 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
148 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 149};
150
2956640d
DP		 151static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
152
d8b100c5 153static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 154{
d8b100c5
DP		 155 struct netxen_adapter *adapter = sds_ring->adapter;
156
195c5f98 157 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 158}
159
d8b100c5 160static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 161{
d8b100c5
DP		 162 struct netxen_adapter *adapter = sds_ring->adapter;
163
195c5f98 164 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 165
092bc571 166 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 167 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 168}
169
71dcddbd
DP		 170static int
171netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
172{
173 int size = sizeof(struct nx_host_sds_ring) * count;
174
175 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
176
807540ba 177 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 178}
179
d8b100c5 180static void
71dcddbd
DP		 181netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
182{
183 if (recv_ctx->sds_rings != NULL)
184 kfree(recv_ctx->sds_rings);
232e7d68
DP		 185
186 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 187}
188
189static int
d8b100c5
DP		 190netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
191{
192 int ring;
193 struct nx_host_sds_ring *sds_ring;
194 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
195
71dcddbd 196 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 197 return -ENOMEM;
71dcddbd 198
d8b100c5
DP		 199 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
200 sds_ring = &recv_ctx->sds_rings[ring];
201 netif_napi_add(netdev, &sds_ring->napi,
202 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
203 }
71dcddbd
DP		 204
205 return 0;
d8b100c5
DP		 206}
207
232e7d68
DP		 208static void
209netxen_napi_del(struct netxen_adapter *adapter)
210{
211 int ring;
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
214
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
218 }
219
220 netxen_free_sds_rings(&adapter->recv_ctx);
221}
222
d8b100c5
DP		 223static void
224netxen_napi_enable(struct netxen_adapter *adapter)
225{
226 int ring;
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
229
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 netxen_nic_enable_int(sds_ring);
234 }
235}
236
237static void
238netxen_napi_disable(struct netxen_adapter *adapter)
239{
240 int ring;
241 struct nx_host_sds_ring *sds_ring;
242 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
243
244 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
245 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 246 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 247 napi_synchronize(&sds_ring->napi);
248 napi_disable(&sds_ring->napi);
d8b100c5
DP		 249 }
250}
251
50c643e7 252static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 253{
254 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 255 uint64_t mask, cmask;
256
257 adapter->pci_using_dac = 0;
2956640d 258
6afd142f 259 mask = DMA_BIT_MASK(32);
6afd142f 260 cmask = DMA_BIT_MASK(32);
1f434f63 261
50c643e7 262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 263#ifndef CONFIG_IA64
6afd142f 264 mask = DMA_BIT_MASK(35);
1f434f63 265#endif
50c643e7
DP		 266 } else {
267 mask = DMA_BIT_MASK(39);
268 cmask = mask;
269 }
270
2956640d 271 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 272 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 273 adapter->pci_using_dac = 1;
274 return 0;
275 }
2956640d 276
1f434f63
DP		 277 return -EIO;
278}
279
280/* Update addressable range if firmware supports it */
281static int
282nx_update_dma_mask(struct netxen_adapter *adapter)
283{
284 int change, shift, err;
50c643e7 285 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 286 struct pci_dev *pdev = adapter->pdev;
287
288 change = 0;
289
f98a9f69 290 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 291 if (shift > 32)
1f434f63
DP		 292 return 0;
293
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
295 change = 1;
296 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
297 change = 1;
298
299 if (change) {
300 old_mask = pdev->dma_mask;
50c643e7
DP		 301 old_cmask = pdev->dev.coherent_dma_mask;
302
f60f7856 303 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 304
305 err = pci_set_dma_mask(pdev, mask);
306 if (err)
50c643e7
DP		 307 goto err_out;
308
309 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
310
311 err = pci_set_consistent_dma_mask(pdev, mask);
312 if (err)
313 goto err_out;
314 }
315 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 316 }
317
2956640d 318 return 0;
50c643e7
DP		 319
320err_out:
321 pci_set_dma_mask(pdev, old_mask);
322 pci_set_consistent_dma_mask(pdev, old_cmask);
323 return err;
2956640d
DP		 324}
325
2956640d
DP		 326static int
327netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
328{
27c915a4 329 u32 val, timeout;
2956640d
DP		 330
331 if (first_boot == 0x55555555) {
332 /* This is the first boot after power up */
f98a9f69 333 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 334
335 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
336 return 0;
2956640d
DP		 337
338 /* PCI bus master workaround */
f98a9f69 339 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 340 if (!(first_boot & 0x4)) {
341 first_boot |= 0x4;
f98a9f69 342 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 343 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 344 }
345
346 /* This is the first boot after power up */
f98a9f69 347 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 348 if (first_boot != 0x80000f) {
349 /* clear the register for future unloads/loads */
f98a9f69 350 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 351 return -EIO;
2956640d
DP		 352 }
353
27c915a4 354 /* Start P2 boot loader */
f98a9f69
DP		 355 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
356 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 357 timeout = 0;
358 do {
359 msleep(1);
f98a9f69 360 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 361
362 if (++timeout > 5000)
363 return -EIO;
364
365 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 366 }
27c915a4 367 return 0;
2956640d
DP		 368}
369
370static void netxen_set_port_mode(struct netxen_adapter *adapter)
371{
372 u32 val, data;
373
1e2d0059 374 val = adapter->ahw.board_type;
2956640d
DP		 375 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
376 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
377 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
378 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 380 } else if (port_mode == NETXEN_PORT_MODE_XG) {
381 data = NETXEN_PORT_MODE_XG;
f98a9f69 382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 389 } else {
390 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 392 }
393
394 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
395 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
397 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
398 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
399 }
f98a9f69 400 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 401 }
402}
403
2956640d
DP		 404static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
405{
406 u32 control;
407 int pos;
408
409 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
410 if (pos) {
411 pci_read_config_dword(pdev, pos, &control);
412 if (enable)
413 control |= PCI_MSIX_FLAGS_ENABLE;
414 else
415 control = 0;
416 pci_write_config_dword(pdev, pos, control);
417 }
418}
419
be339aee 420static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 421{
422 int i;
423
be339aee 424 for (i = 0; i < count; i++)
2956640d
DP		 425 adapter->msix_entries[i].entry = i;
426}
427
9dc28efe
DP		 428static int
429netxen_read_mac_addr(struct netxen_adapter *adapter)
430{
431 int i;
432 unsigned char *p;
a03d2451 433 u64 mac_addr;
9dc28efe
DP		 434 struct net_device *netdev = adapter->netdev;
435 struct pci_dev *pdev = adapter->pdev;
436
9dc28efe
DP		 437 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
438 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
439 return -EIO;
440 } else {
441 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
442 return -EIO;
443 }
444
445 p = (unsigned char *)&mac_addr;
446 for (i = 0; i < 6; i++)
447 netdev->dev_addr[i] = *(p + 5 - i);
448
449 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
5d09e534 450 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 451
452 /* set station address */
453
e174961c
JB		 454 if (!is_valid_ether_addr(netdev->perm_addr))
455 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 456
457 return 0;
458}
459
7e12bb0a 460static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 461{
462 struct netxen_adapter *adapter = netdev_priv(netdev);
463 struct sockaddr *addr = p;
464
465 if (!is_valid_ether_addr(addr->sa_data))
466 return -EINVAL;
467
468 if (netif_running(netdev)) {
469 netif_device_detach(netdev);
470 netxen_napi_disable(adapter);
471 }
472
5d09e534 473 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 474 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
475 adapter->macaddr_set(adapter, addr->sa_data);
476
477 if (netif_running(netdev)) {
478 netif_device_attach(netdev);
479 netxen_napi_enable(adapter);
480 }
481 return 0;
482}
483
1abd266f
SH		 484static void netxen_set_multicast_list(struct net_device *dev)
485{
486 struct netxen_adapter *adapter = netdev_priv(dev);
487
3d0a3cc9 488 adapter->set_multi(dev);
1abd266f
SH		 489}
490
491static const struct net_device_ops netxen_netdev_ops = {
492 .ndo_open = netxen_nic_open,
493 .ndo_stop = netxen_nic_close,
494 .ndo_start_xmit = netxen_nic_xmit_frame,
495 .ndo_get_stats = netxen_nic_get_stats,
496 .ndo_validate_addr = eth_validate_addr,
497 .ndo_set_multicast_list = netxen_set_multicast_list,
498 .ndo_set_mac_address = netxen_nic_set_mac,
499 .ndo_change_mtu = netxen_nic_change_mtu,
500 .ndo_tx_timeout = netxen_tx_timeout,
501#ifdef CONFIG_NET_POLL_CONTROLLER
502 .ndo_poll_controller = netxen_nic_poll_controller,
503#endif
504};
505
97daee83
DP		 506static void
507netxen_setup_intr(struct netxen_adapter *adapter)
508{
509 struct netxen_legacy_intr_set *legacy_intrp;
510 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 511 int err, num_msix;
512
513 if (adapter->rss_supported) {
514 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
515 MSIX_ENTRIES_PER_ADAPTER : 2;
516 } else
517 num_msix = 1;
518
519 adapter->max_sds_rings = 1;
97daee83
DP		 520
521 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 522
523 if (adapter->ahw.revision_id >= NX_P3_B0)
524 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
525 else
526 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 527
528 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
529 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_status_reg);
531 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_mask_reg);
533 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->pci_int_reg);
535 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
536
537 if (adapter->ahw.revision_id >= NX_P3_B1)
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
539 ISR_INT_STATE_REG);
540 else
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
542 CRB_INT_VECTOR);
97daee83
DP		 543
544 netxen_set_msix_bit(pdev, 0);
545
546 if (adapter->msix_supported) {
547
be339aee
DP		 548 netxen_init_msix_entries(adapter, num_msix);
549 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
550 if (err == 0) {
551 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
552 netxen_set_msix_bit(pdev, 1);
97daee83 553
be339aee
DP		 554 if (adapter->rss_supported)
555 adapter->max_sds_rings = num_msix;
97daee83 556
be339aee
DP		 557 dev_info(&pdev->dev, "using msi-x interrupts\n");
558 return;
559 }
560
561 if (err > 0)
562 pci_disable_msix(pdev);
563
564 /* fall through for msi */
97daee83 565 }
be339aee
DP		 566
567 if (use_msi && !pci_enable_msi(pdev)) {
568 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 569 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
570 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 571 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 572 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 573 return;
574 }
575
576 dev_info(&pdev->dev, "using legacy interrupts\n");
577 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 578}
579
580static void
581netxen_teardown_intr(struct netxen_adapter *adapter)
582{
583 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
584 pci_disable_msix(adapter->pdev);
585 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
586 pci_disable_msi(adapter->pdev);
587}
588
589static void
590netxen_cleanup_pci_map(struct netxen_adapter *adapter)
591{
592 if (adapter->ahw.db_base != NULL)
593 iounmap(adapter->ahw.db_base);
594 if (adapter->ahw.pci_base0 != NULL)
595 iounmap(adapter->ahw.pci_base0);
596 if (adapter->ahw.pci_base1 != NULL)
597 iounmap(adapter->ahw.pci_base1);
598 if (adapter->ahw.pci_base2 != NULL)
599 iounmap(adapter->ahw.pci_base2);
600}
601
602static int
603netxen_setup_pci_map(struct netxen_adapter *adapter)
604{
97daee83
DP		 605 void __iomem *db_ptr = NULL;
606
71fb62fb 607 resource_size_t mem_base, db_base;
afbe5cd6 608 unsigned long mem_len, db_len = 0;
97daee83
DP		 609
610 struct pci_dev *pdev = adapter->pdev;
611 int pci_func = adapter->ahw.pci_func;
afbe5cd6 612 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 613
614 int err = 0;
615
616 /*
617 * Set the CRB window to invalid. If any register in window 0 is
618 * accessed it should set the window to 0 and then reset it to 1.
619 */
907fa120 620 adapter->ahw.crb_win = -1;
47abe356 621 adapter->ahw.ocm_win = -1;
97daee83
DP		 622
623 /* remap phys address */
624 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
625 mem_len = pci_resource_len(pdev, 0);
97daee83 626
97daee83
DP		 627 /* 128 Meg of memory */
628 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 629
630 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
631 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 632 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 633 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 634 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 635 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
636 ahw->pci_base2 == NULL) {
637 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
638 err = -EIO;
639 goto err_out;
640 }
641
642 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
643
97daee83 644 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 645
646 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
647 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 648 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 649 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
650 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
651 err = -EIO;
652 goto err_out;
653 }
654
97daee83 655 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 656
afbe5cd6
AKS		 657 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
658 if (ahw->pci_base0 == NULL) {
97daee83
DP		 659 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
660 return -EIO;
661 }
afbe5cd6 662 ahw->pci_len0 = mem_len;
97daee83
DP		 663 } else {
664 return -EIO;
665 }
666
195c5f98
AKS		 667 netxen_setup_hwops(adapter);
668
97daee83
DP		 669 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
670
6abb4b83
AKS		 671 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
672 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
673 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
674
675 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 676 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
677 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
678 }
679
97daee83
DP		 680 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
681 goto skip_doorbell;
682
683 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
684 db_len = pci_resource_len(pdev, 4);
685
686 if (db_len == 0) {
687 printk(KERN_ERR "%s: doorbell is disabled\n",
688 netxen_nic_driver_name);
689 err = -EIO;
690 goto err_out;
691 }
692
693 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
694 if (!db_ptr) {
695 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
696 netxen_nic_driver_name);
697 err = -EIO;
698 goto err_out;
699 }
700
701skip_doorbell:
702 adapter->ahw.db_base = db_ptr;
703 adapter->ahw.db_len = db_len;
704 return 0;
705
706err_out:
707 netxen_cleanup_pci_map(adapter);
708 return err;
709}
710
2b9e62ee
DP		 711static void
712netxen_check_options(struct netxen_adapter *adapter)
713{
714 u32 fw_major, fw_minor, fw_build;
715 char brd_name[NETXEN_MAX_SHORT_NAME];
716 char serial_num[32];
717 int i, offset, val;
718 int *ptr32;
719 struct pci_dev *pdev = adapter->pdev;
720
721 adapter->driver_mismatch = 0;
722
723 ptr32 = (int *)&serial_num;
724 offset = NX_FW_SERIAL_NUM_OFFSET;
725 for (i = 0; i < 8; i++) {
726 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
727 dev_err(&pdev->dev, "error reading board info\n");
728 adapter->driver_mismatch = 1;
729 return;
730 }
731 ptr32[i] = cpu_to_le32(val);
732 offset += sizeof(u32);
733 }
734
735 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
736 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
737 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
738
739 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
740
741 if (adapter->portnum == 0) {
742 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
743
c25c0b9b
DP		 744 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
745 module_name(THIS_MODULE),
2b9e62ee
DP		 746 brd_name, serial_num, adapter->ahw.revision_id);
747 }
748
749 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
750 adapter->driver_mismatch = 1;
751 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
752 fw_major, fw_minor, fw_build);
753 return;
754 }
755
756 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
757 i = NXRD32(adapter, NETXEN_SRE_MISC);
758 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
759 }
760
761 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
762 fw_major, fw_minor, fw_build,
763 adapter->ahw.cut_through ? "cut-through" : "legacy");
764
765 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
766 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
767
768 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
769
770 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
771 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
772 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
773 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
774 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
775 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
776 }
777
778 adapter->msix_supported = 0;
779 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
780 adapter->msix_supported = !!use_msi_x;
781 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 782 } else {
783 u32 flashed_ver = 0;
784 netxen_rom_fast_read(adapter,
785 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
786 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
787
788 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
789 switch (adapter->ahw.board_type) {
790 case NETXEN_BRDTYPE_P2_SB31_10G:
791 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
792 adapter->msix_supported = !!use_msi_x;
793 adapter->rss_supported = !!use_msi_x;
794 break;
795 default:
796 break;
797 }
2b9e62ee
DP		 798 }
799 }
800
801 adapter->num_txd = MAX_CMD_DESCRIPTORS;
802
803 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
804 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
805 adapter->max_rds_rings = 3;
806 } else {
807 adapter->num_lro_rxd = 0;
808 adapter->max_rds_rings = 2;
809 }
810}
811
ba599d4f 812static int
6a581e93 813netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 814{
815 int val, err, first_boot;
816 struct pci_dev *pdev = adapter->pdev;
817
2b9e62ee
DP		 818 /* required for NX2031 dummy dma */
819 err = nx_set_dma_mask(adapter);
820 if (err)
821 return err;
822
6a581e93 823 if (!netxen_can_start_firmware(adapter))
96f2ebd2 824 goto wait_init;
0b72e659 825
f98a9f69 826 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 827
828 err = netxen_check_hw_init(adapter, first_boot);
829 if (err) {
830 dev_err(&pdev->dev, "error in init HW init sequence\n");
831 return err;
832 }
833
6a581e93 834 netxen_request_firmware(adapter);
f7185c71 835
67c38fc6 836 err = netxen_need_fw_reset(adapter);
1dbc84a7 837 if (err < 0)
db4cfd8a 838 goto err_out;
1dbc84a7 839 if (err == 0)
8f9b3f69 840 goto wait_init;
67c38fc6 841
ba599d4f 842 if (first_boot != 0x55555555) {
f98a9f69 843 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 844 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 845 msleep(1);
846 }
567c6c4e 847
f98a9f69 848 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 849 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
850 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
851
567c6c4e
DP		 852 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
853 netxen_set_port_mode(adapter);
854
db4cfd8a
DP		 855 err = netxen_load_firmware(adapter);
856 if (err)
857 goto err_out;
ba599d4f 858
6a581e93
DP		 859 netxen_release_firmware(adapter);
860
ba599d4f
DP		 861 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
862
863 /* Initialize multicast addr pool owners */
864 val = 0x7654;
1e2d0059 865 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 866 val |= 0x0f000000;
f98a9f69 867 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 868
869 }
870
83ac51fa 871 err = netxen_init_dummy_dma(adapter);
ba599d4f 872 if (err)
db4cfd8a 873 goto err_out;
ba599d4f
DP		 874
875 /*
876 * Tell the hardware our version number.
877 */
878 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
879 | ((_NETXEN_NIC_LINUX_MINOR << 8))
880 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 881 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 882
96f2ebd2 883wait_init:
ba599d4f
DP		 884 /* Handshake with the card before we register the devices. */
885 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
886 if (err) {
83ac51fa 887 netxen_free_dummy_dma(adapter);
db4cfd8a 888 goto err_out;
ba599d4f
DP		 889 }
890
8f9b3f69
AKS		 891 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
892
68b3cae0
DP		 893 nx_update_dma_mask(adapter);
894
6a581e93 895 netxen_check_options(adapter);
68b3cae0 896
74c520da
AKS		 897 adapter->need_fw_reset = 0;
898
ec5c50cb 899 /* fall through and release firmware */
db4cfd8a
DP		 900
901err_out:
902 netxen_release_firmware(adapter);
903 return err;
ba599d4f
DP		 904}
905
9f5bc7f1
DP		 906static int
907netxen_nic_request_irq(struct netxen_adapter *adapter)
908{
909 irq_handler_t handler;
d8b100c5
DP		 910 struct nx_host_sds_ring *sds_ring;
911 int err, ring;
912
9f5bc7f1
DP		 913 unsigned long flags = IRQF_SAMPLE_RANDOM;
914 struct net_device *netdev = adapter->netdev;
d8b100c5 915 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 916
9f5bc7f1
DP		 917 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
918 handler = netxen_msix_intr;
919 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
920 handler = netxen_msi_intr;
921 else {
922 flags |= IRQF_SHARED;
923 handler = netxen_intr;
924 }
925 adapter->irq = netdev->irq;
926
d8b100c5
DP		 927 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
928 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 929 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 930 err = request_irq(sds_ring->irq, handler,
931 flags, sds_ring->name, sds_ring);
932 if (err)
933 return err;
934 }
935
936 return 0;
937}
938
939static void
940netxen_nic_free_irq(struct netxen_adapter *adapter)
941{
942 int ring;
943 struct nx_host_sds_ring *sds_ring;
944
945 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
946
947 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
948 sds_ring = &recv_ctx->sds_rings[ring];
949 free_irq(sds_ring->irq, sds_ring);
950 }
9f5bc7f1
DP		 951}
952
ca2ef330
DP		 953static void
954netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
955{
956 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
957 adapter->coal.normal.data.rx_time_us =
958 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
959 adapter->coal.normal.data.rx_packets =
960 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
961 adapter->coal.normal.data.tx_time_us =
962 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
963 adapter->coal.normal.data.tx_packets =
964 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
965}
966
6f771419 967/* with rtnl_lock */
9f5bc7f1 968static int
6f771419 969__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 970{
971 int err;
972
db4cfd8a
DP		 973 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
974 return -EIO;
975
9f5bc7f1
DP		 976 err = adapter->init_port(adapter, adapter->physical_port);
977 if (err) {
978 printk(KERN_ERR "%s: Failed to initialize port %d\n",
979 netxen_nic_driver_name, adapter->portnum);
980 return err;
981 }
3d0a3cc9 982 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 983 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 984
3d0a3cc9
DP		 985 adapter->set_multi(netdev);
986 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 987
988 adapter->ahw.linkup = 0;
9f5bc7f1 989
d8b100c5
DP		 990 if (adapter->max_sds_rings > 1)
991 netxen_config_rss(adapter, 1);
9f5bc7f1 992
ca2ef330
DP		 993 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
994 netxen_config_intr_coalesce(adapter);
995
1bb482f8
NK		 996 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
997 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
998
b2af9cb0
DP		 999 netxen_napi_enable(adapter);
1000
5103c9f7 1001 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1002 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1003 else
1004 netxen_nic_set_link_parameters(adapter);
1005
6a581e93 1006 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1007 return 0;
1008}
1009
6f771419
AKS		 1010/* Usage: During resume and firmware recovery module.*/
1011
1012static inline int
1013netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1014{
1015 int err = 0;
1016
1017 rtnl_lock();
1018 if (netif_running(netdev))
1019 err = __netxen_nic_up(adapter, netdev);
1020 rtnl_unlock();
1021
1022 return err;
1023}
1024
1025/* with rtnl_lock */
9f5bc7f1 1026static void
6f771419 1027__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1028{
db4cfd8a
DP		 1029 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1030 return;
1031
f2251f66
AKS		 1032 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1033 return;
6a581e93 1034
f2251f66 1035 smp_mb();
b2af9cb0 1036 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1037 netif_carrier_off(netdev);
b2af9cb0 1038 netif_tx_disable(netdev);
9f5bc7f1
DP		 1039
1040 if (adapter->stop_port)
1041 adapter->stop_port(adapter);
1042
5cf4d323
DP		 1043 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1044 netxen_p3_free_mac_list(adapter);
1045
22b5794b
AKS		 1046 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1047
be339aee
DP		 1048 netxen_napi_disable(adapter);
1049
9f5bc7f1 1050 netxen_release_tx_buffers(adapter);
b2af9cb0 1051 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1052}
1053
6f771419
AKS		 1054/* Usage: During suspend and firmware recovery module */
1055
1056static inline void
1057netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1058{
1059 rtnl_lock();
1060 if (netif_running(netdev))
1061 __netxen_nic_down(adapter, netdev);
1062 rtnl_unlock();
1063
1064}
9f5bc7f1
DP		 1065
1066static int
1067netxen_nic_attach(struct netxen_adapter *adapter)
1068{
1069 struct net_device *netdev = adapter->netdev;
1070 struct pci_dev *pdev = adapter->pdev;
becf46a0 1071 int err, ring;
d8b100c5 1072 struct nx_host_rds_ring *rds_ring;
d877f1e3 1073 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1074
7042cd8f
AKS		 1075 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1076 return 0;
1077
9f5bc7f1 1078 err = netxen_init_firmware(adapter);
232e7d68
DP		 1079 if (err)
1080 return err;
1081
1082 err = netxen_napi_add(adapter, netdev);
1083 if (err)
1084 return err;
9f5bc7f1 1085
9f5bc7f1
DP		 1086 err = netxen_alloc_sw_resources(adapter);
1087 if (err) {
1088 printk(KERN_ERR "%s: Error in setting sw resources\n",
1089 netdev->name);
1090 return err;
1091 }
1092
9f5bc7f1
DP		 1093 err = netxen_alloc_hw_resources(adapter);
1094 if (err) {
1095 printk(KERN_ERR "%s: Error in setting hw resources\n",
1096 netdev->name);
1097 goto err_out_free_sw;
1098 }
1099
4f96b988 1100 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1101 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1102 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1103 crb_cmd_producer[adapter->portnum]);
1104 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1105 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1106
cb2107be
DP		 1107 tx_ring->producer = 0;
1108 tx_ring->sw_consumer = 0;
1109
1110 netxen_nic_update_cmd_producer(adapter, tx_ring);
1111 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1112 }
1113
d8b100c5
DP		 1114 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1115 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1116 netxen_post_rx_buffers(adapter, ring, rds_ring);
1117 }
9f5bc7f1
DP		 1118
1119 err = netxen_nic_request_irq(adapter);
1120 if (err) {
1121 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1122 netdev->name);
1123 goto err_out_free_rxbuf;
1124 }
1125
ca2ef330
DP		 1126 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1127 netxen_nic_init_coalesce_defaults(adapter);
1128
fa3ce355
NK		 1129 netxen_create_sysfs_entries(adapter);
1130
9f5bc7f1
DP		 1131 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1132 return 0;
1133
1134err_out_free_rxbuf:
1135 netxen_release_rx_buffers(adapter);
1136 netxen_free_hw_resources(adapter);
1137err_out_free_sw:
1138 netxen_free_sw_resources(adapter);
1139 return err;
1140}
1141
1142static void
1143netxen_nic_detach(struct netxen_adapter *adapter)
1144{
7042cd8f
AKS		 1145 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1146 return;
1147
fa3ce355
NK		 1148 netxen_remove_sysfs_entries(adapter);
1149
9f5bc7f1 1150 netxen_free_hw_resources(adapter);
cf981ffb 1151 netxen_release_rx_buffers(adapter);
be339aee 1152 netxen_nic_free_irq(adapter);
232e7d68 1153 netxen_napi_del(adapter);
9f5bc7f1
DP		 1154 netxen_free_sw_resources(adapter);
1155
1156 adapter->is_up = 0;
1157}
1158
7042cd8f
AKS		 1159int
1160netxen_nic_reset_context(struct netxen_adapter *adapter)
1161{
1162 int err = 0;
1163 struct net_device *netdev = adapter->netdev;
1164
6a581e93
DP		 1165 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1166 return -EBUSY;
1167
7042cd8f
AKS		 1168 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1169
6a581e93
DP		 1170 netif_device_detach(netdev);
1171
7042cd8f 1172 if (netif_running(netdev))
6f771419 1173 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1174
1175 netxen_nic_detach(adapter);
1176
6a581e93
DP		 1177 if (netif_running(netdev)) {
1178 err = netxen_nic_attach(adapter);
1179 if (!err)
6f771419 1180 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1181
6a581e93
DP		 1182 if (err)
1183 goto done;
1184 }
1185
1186 netif_device_attach(netdev);
7042cd8f 1187 }
6a581e93 1188
7042cd8f 1189done:
6a581e93 1190 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1191 return err;
1192}
1193
f17443f4
DP		 1194static int
1195netxen_setup_netdev(struct netxen_adapter *adapter,
1196 struct net_device *netdev)
1197{
1198 int err = 0;
1199 struct pci_dev *pdev = adapter->pdev;
1200
1201 adapter->rx_csum = 1;
1202 adapter->mc_enabled = 0;
1203 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1204 adapter->max_mc_count = 38;
1205 else
1206 adapter->max_mc_count = 16;
1207
1208 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1209 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1210
1211 netxen_nic_change_mtu(netdev, netdev->mtu);
1212
1213 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1214
1215 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1216 netdev->features |= (NETIF_F_GRO);
1217 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1218
1219 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1220 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1221 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1222 }
1223
1224 if (adapter->pci_using_dac) {
1225 netdev->features |= NETIF_F_HIGHDMA;
1226 netdev->vlan_features |= NETIF_F_HIGHDMA;
1227 }
1228
028afe71
DP		 1229 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1230 netdev->features |= (NETIF_F_HW_VLAN_TX);
1231
1bb482f8
NK		 1232 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1233 netdev->features |= NETIF_F_LRO;
1234
f17443f4
DP		 1235 netdev->irq = adapter->msix_entries[0].vector;
1236
74c520da 1237 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1238
1239 if (netxen_read_mac_addr(adapter))
1240 dev_warn(&pdev->dev, "failed to read mac addr\n");
1241
1242 netif_carrier_off(netdev);
f17443f4
DP		 1243
1244 err = register_netdev(netdev);
1245 if (err) {
1246 dev_err(&pdev->dev, "failed to register net device\n");
1247 return err;
1248 }
1249
1250 return 0;
1251}
1252
dce87b96 1253#ifdef CONFIG_PCIEAER
1254static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1255{
1256 struct pci_dev *pdev = adapter->pdev;
1257 struct pci_dev *root = pdev->bus->self;
1258 u32 aer_pos;
1259
1260 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1261 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1262 return;
1263
1264 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1265 return;
1266
1267 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1268 if (!aer_pos)
1269 return;
1270
1271 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1272}
1273#endif
1274
3d396eb1
AK		 1275static int __devinit
1276netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1277{
1278 struct net_device *netdev = NULL;
1279 struct netxen_adapter *adapter = NULL;
2956640d 1280 int i = 0, err;
3176ff3e 1281 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1282 uint8_t revision_id;
3d396eb1 1283
688328c7
EB		 1284 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1285 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1286 "will not be enabled.\n",
c25c0b9b 1287 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1288 return -ENODEV;
1289 }
1290
3d396eb1
AK		 1291 if ((err = pci_enable_device(pdev)))
1292 return err;
2956640d 1293
3d396eb1
AK		 1294 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1295 err = -ENODEV;
1296 goto err_out_disable_pdev;
1297 }
1298
1299 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1300 goto err_out_disable_pdev;
1301
e87ad553
AKS		 1302 if (NX_IS_REVISION_P3(pdev->revision))
1303 pci_enable_pcie_error_reporting(pdev);
1304
3d396eb1 1305 pci_set_master(pdev);
3176ff3e
MT		 1306
1307 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1308 if(!netdev) {
f17443f4
DP		 1309 dev_err(&pdev->dev, "failed to allocate net_device\n");
1310 err = -ENOMEM;
3176ff3e
MT		 1311 goto err_out_free_res;
1312 }
1313
3176ff3e
MT		 1314 SET_NETDEV_DEV(netdev, &pdev->dev);
1315
4cf1653a 1316 adapter = netdev_priv(netdev);
2956640d
DP		 1317 adapter->netdev = netdev;
1318 adapter->pdev = pdev;
13ba9c77 1319 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1320
1321 revision_id = pdev->revision;
1322 adapter->ahw.revision_id = revision_id;
1323
f03b0ebd
DP		 1324 rwlock_init(&adapter->ahw.crb_lock);
1325 spin_lock_init(&adapter->ahw.mem_lock);
1326
d8b100c5 1327 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1328 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1329
97daee83
DP		 1330 err = netxen_setup_pci_map(adapter);
1331 if (err)
6c80b18d 1332 goto err_out_free_netdev;
3d396eb1 1333
2d1a3bbd 1334 /* This will be reset for mezz cards */
3176ff3e 1335 adapter->portnum = pci_func_id;
3176ff3e 1336
f17443f4
DP		 1337 err = netxen_nic_get_board_info(adapter);
1338 if (err) {
1339 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1340 goto err_out_iounmap;
1341 }
6c80b18d 1342
dce87b96 1343#ifdef CONFIG_PCIEAER
1344 netxen_mask_aer_correctable(adapter);
1345#endif
1346
13ba9c77 1347 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1348 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1349 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1350 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1351 if (pci_func_id >= 2)
13ba9c77 1352 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1353 break;
1354 default:
1355 break;
1356 }
13ba9c77 1357
683b65f8
RB		 1358 if (reset_devices) {
1359 if (adapter->portnum == 0) {
1360 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1361 adapter->need_fw_reset = 1;
1362 }
1363 }
1364
6a581e93 1365 err = netxen_start_firmware(adapter);
0b72e659 1366 if (err)
8f9b3f69 1367 goto err_out_decr_ref;
f17443f4 1368
3d396eb1 1369 /*
6c80b18d 1370 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1371 */
dcd56fdb 1372 adapter->physical_port = adapter->portnum;
4f96b988 1373 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1374 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1375 if (i != 0x55555555)
1376 adapter->physical_port = i;
1377 }
6c80b18d 1378
6a581e93 1379 netxen_nic_clear_stats(adapter);
2956640d 1380
97daee83 1381 netxen_setup_intr(adapter);
2956640d 1382
f17443f4 1383 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1384 if (err)
2956640d 1385 goto err_out_disable_msi;
6c80b18d
MT		 1386
1387 pci_set_drvdata(pdev, adapter);
3d396eb1 1388
6a581e93
DP		 1389 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1390
1e2d0059 1391 switch (adapter->ahw.port_type) {
2956640d
DP		 1392 case NETXEN_NIC_GBE:
1393 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1394 adapter->netdev->name);
1395 break;
1396 case NETXEN_NIC_XGBE:
1397 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1398 adapter->netdev->name);
1399 break;
3d396eb1 1400 }
3d396eb1 1401
70f9cf89
DP		 1402 netxen_create_diag_entries(adapter);
1403
2956640d
DP		 1404 return 0;
1405
1406err_out_disable_msi:
97daee83 1407 netxen_teardown_intr(adapter);
6c80b18d 1408
83ac51fa 1409 netxen_free_dummy_dma(adapter);
3d396eb1 1410
8f9b3f69 1411err_out_decr_ref:
6a581e93
DP		 1412 nx_decr_dev_ref_cnt(adapter);
1413
2956640d 1414err_out_iounmap:
97daee83 1415 netxen_cleanup_pci_map(adapter);
cb8011ad 1416
6c80b18d
MT		 1417err_out_free_netdev:
1418 free_netdev(netdev);
1419
1420err_out_free_res:
3d396eb1 1421 pci_release_regions(pdev);
6c80b18d
MT		 1422
1423err_out_disable_pdev:
2956640d 1424 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1425 pci_disable_device(pdev);
1426 return err;
1427}
1428
1429static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1430{
1431 struct netxen_adapter *adapter;
3176ff3e 1432 struct net_device *netdev;
3d396eb1 1433
6c80b18d 1434 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1435 if (adapter == NULL)
1436 return;
1437
6c80b18d
MT		 1438 netdev = adapter->netdev;
1439
6a581e93
DP		 1440 netxen_cancel_fw_work(adapter);
1441
96acb6eb
DP		 1442 unregister_netdev(netdev);
1443
e424fa9d
AKS		 1444 cancel_work_sync(&adapter->tx_timeout_task);
1445
7042cd8f 1446 netxen_nic_detach(adapter);
3d396eb1 1447
6a581e93
DP		 1448 nx_decr_dev_ref_cnt(adapter);
1449
439b454e 1450 if (adapter->portnum == 0)
83ac51fa 1451 netxen_free_dummy_dma(adapter);
96acb6eb 1452
6a581e93
DP		 1453 clear_bit(__NX_RESETTING, &adapter->state);
1454
97daee83 1455 netxen_teardown_intr(adapter);
3052246c 1456
70f9cf89
DP		 1457 netxen_remove_diag_entries(adapter);
1458
97daee83 1459 netxen_cleanup_pci_map(adapter);
595e3fb8 1460
f7185c71
DP		 1461 netxen_release_firmware(adapter);
1462
e87ad553
AKS		 1463 if (NX_IS_REVISION_P3(pdev->revision))
1464 pci_disable_pcie_error_reporting(pdev);
1465
595e3fb8 1466 pci_release_regions(pdev);
3052246c 1467 pci_disable_device(pdev);
595e3fb8
MT		 1468 pci_set_drvdata(pdev, NULL);
1469
6c80b18d 1470 free_netdev(netdev);
3d396eb1 1471}
e87ad553
AKS		 1472
1473static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1474{
0b72e659
DP		 1475 struct net_device *netdev = adapter->netdev;
1476
1477 netif_device_detach(netdev);
1478
6a581e93
DP		 1479 netxen_cancel_fw_work(adapter);
1480
0b72e659
DP		 1481 if (netif_running(netdev))
1482 netxen_nic_down(adapter, netdev);
1483
e424fa9d
AKS		 1484 cancel_work_sync(&adapter->tx_timeout_task);
1485
7042cd8f 1486 netxen_nic_detach(adapter);
0b72e659 1487
22b5794b
AKS		 1488 if (adapter->portnum == 0)
1489 netxen_free_dummy_dma(adapter);
1490
6a581e93
DP		 1491 nx_decr_dev_ref_cnt(adapter);
1492
1493 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1494}
0b72e659 1495
e87ad553 1496static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1497{
1498 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1499 struct net_device *netdev = adapter->netdev;
1500 int err;
1501
0b72e659
DP		 1502 err = pci_enable_device(pdev);
1503 if (err)
1504 return err;
1505
bc86fcba
AKS		 1506 pci_set_power_state(pdev, PCI_D0);
1507 pci_set_master(pdev);
1508 pci_restore_state(pdev);
1509
907fa120 1510 adapter->ahw.crb_win = -1;
47abe356 1511 adapter->ahw.ocm_win = -1;
0b72e659 1512
6a581e93 1513 err = netxen_start_firmware(adapter);
0b72e659
DP		 1514 if (err) {
1515 dev_err(&pdev->dev, "failed to start firmware\n");
1516 return err;
1517 }
1518
1519 if (netif_running(netdev)) {
1520 err = netxen_nic_attach(adapter);
1521 if (err)
6a581e93 1522 goto err_out;
0b72e659
DP		 1523
1524 err = netxen_nic_up(adapter, netdev);
1525 if (err)
6a581e93 1526 goto err_out_detach;
0b72e659 1527
d0725e4d 1528 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1529 }
1530
bc86fcba 1531 netif_device_attach(netdev);
6a581e93 1532 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1533 return 0;
6a581e93
DP		 1534
1535err_out_detach:
1536 netxen_nic_detach(adapter);
1537err_out:
1538 nx_decr_dev_ref_cnt(adapter);
1539 return err;
0b72e659 1540}
e87ad553
AKS		 1541
1542static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1543 pci_channel_state_t state)
1544{
1545 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1546
1547 if (state == pci_channel_io_perm_failure)
1548 return PCI_ERS_RESULT_DISCONNECT;
1549
1550 if (nx_dev_request_aer(adapter))
1551 return PCI_ERS_RESULT_RECOVERED;
1552
1553 netxen_nic_detach_func(adapter);
1554
1555 pci_disable_device(pdev);
1556
1557 return PCI_ERS_RESULT_NEED_RESET;
1558}
1559
1560static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1561{
1562 int err = 0;
1563
1564 err = netxen_nic_attach_func(pdev);
1565
1566 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1567}
1568
1569static void netxen_io_resume(struct pci_dev *pdev)
1570{
1571 pci_cleanup_aer_uncorrect_error_status(pdev);
1572}
1573
1574static void netxen_nic_shutdown(struct pci_dev *pdev)
1575{
1576 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1577
1578 netxen_nic_detach_func(adapter);
1579
1580 if (pci_save_state(pdev))
1581 return;
1582
1583 if (netxen_nic_wol_supported(adapter)) {
1584 pci_enable_wake(pdev, PCI_D3cold, 1);
1585 pci_enable_wake(pdev, PCI_D3hot, 1);
1586 }
1587
1588 pci_disable_device(pdev);
1589}
1590
1591#ifdef CONFIG_PM
1592static int
1593netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1594{
1595 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1596 int retval;
1597
1598 netxen_nic_detach_func(adapter);
1599
1600 retval = pci_save_state(pdev);
1601 if (retval)
1602 return retval;
1603
1604 if (netxen_nic_wol_supported(adapter)) {
1605 pci_enable_wake(pdev, PCI_D3cold, 1);
1606 pci_enable_wake(pdev, PCI_D3hot, 1);
1607 }
1608
1609 pci_disable_device(pdev);
1610 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1611
1612 return 0;
1613}
1614
1615static int
1616netxen_nic_resume(struct pci_dev *pdev)
1617{
1618 return netxen_nic_attach_func(pdev);
1619}
01542cd1 1620#endif
0b72e659 1621
3d396eb1
AK		 1622static int netxen_nic_open(struct net_device *netdev)
1623{
4cf1653a 1624 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1625 int err = 0;
3d396eb1 1626
dcd56fdb
DP		 1627 if (adapter->driver_mismatch)
1628 return -EIO;
1629
7042cd8f
AKS		 1630 err = netxen_nic_attach(adapter);
1631 if (err)
1632 return err;
2956640d 1633
6f771419 1634 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1635 if (err)
1636 goto err_out;
05aaa02d 1637
dcd56fdb 1638 netif_start_queue(netdev);
3d396eb1
AK		 1639
1640 return 0;
2956640d 1641
9f5bc7f1
DP		 1642err_out:
1643 netxen_nic_detach(adapter);
2956640d 1644 return err;
3d396eb1
AK		 1645}
1646
1647/*
1648 * netxen_nic_close - Disables a network interface entry point
1649 */
1650static int netxen_nic_close(struct net_device *netdev)
1651{
3176ff3e 1652 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1653
6f771419 1654 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1655 return 0;
1656}
1657
1bcfd790
DP		 1658static void
1659netxen_tso_check(struct net_device *netdev,
1660 struct nx_host_tx_ring *tx_ring,
1661 struct cmd_desc_type0 *first_desc,
1662 struct sk_buff *skb)
cd1f8160 1663{
391587c3 1664 u8 opcode = TX_ETHER_PKT;
cdff1036 1665 __be16 protocol = skb->protocol;
028afe71 1666 u16 flags = 0, vid = 0;
1bcfd790 1667 u32 producer;
028afe71 1668 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1669 struct cmd_desc_type0 *hwdesc;
028afe71 1670 struct vlan_ethhdr *vh;
cdff1036 1671
09640e63 1672 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1673
1674 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1675 protocol = vh->h_vlan_encapsulated_proto;
1676 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1677
1678 } else if (vlan_tx_tag_present(skb)) {
1679
1680 flags = FLAGS_VLAN_OOB;
1681 vid = vlan_tx_tag_get(skb);
1682 netxen_set_tx_vlan_tci(first_desc, vid);
1683 vlan_oob = 1;
cdff1036 1684 }
cd1f8160 1685
391587c3
DP		 1686 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1687 skb_shinfo(skb)->gso_size > 0) {
1688
1bcfd790
DP		 1689 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1690
1691 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1692 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1693 if (vlan_oob) {
1694 first_desc->total_hdr_length += VLAN_HLEN;
1695 first_desc->tcp_hdr_offset = VLAN_HLEN;
1696 first_desc->ip_hdr_offset = VLAN_HLEN;
1697 /* Only in case of TSO on vlan device */
1698 flags |= FLAGS_VLAN_TAGGED;
1699 }
391587c3 1700
09640e63 1701 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1702 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1703 tso = 1;
cd1f8160
DP		 1704
1705 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1706 u8 l4proto;
1707
09640e63 1708 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1709 l4proto = ip_hdr(skb)->protocol;
1710
1711 if (l4proto == IPPROTO_TCP)
1712 opcode = TX_TCP_PKT;
1713 else if(l4proto == IPPROTO_UDP)
1714 opcode = TX_UDP_PKT;
09640e63 1715 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1716 l4proto = ipv6_hdr(skb)->nexthdr;
1717
1718 if (l4proto == IPPROTO_TCP)
1719 opcode = TX_TCPV6_PKT;
1720 else if(l4proto == IPPROTO_UDP)
1721 opcode = TX_UDPV6_PKT;
1722 }
cd1f8160 1723 }
028afe71
DP		 1724
1725 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1726 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1727 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1728
1729 if (!tso)
1730 return;
1731
1732 /* For LSO, we need to copy the MAC/IP/TCP headers into
1733 * the descriptor ring
1734 */
1735 producer = tx_ring->producer;
1736 copied = 0;
1737 offset = 2;
1738
028afe71
DP		 1739 if (vlan_oob) {
1740 /* Create a TSO vlan header template for firmware */
1741
1742 hwdesc = &tx_ring->desc_head[producer];
1743 tx_ring->cmd_buf_arr[producer].skb = NULL;
1744
1745 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1746 hdr_len + VLAN_HLEN);
1747
1748 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1749 skb_copy_from_linear_data(skb, vh, 12);
1750 vh->h_vlan_proto = htons(ETH_P_8021Q);
1751 vh->h_vlan_TCI = htons(vid);
1752 skb_copy_from_linear_data_offset(skb, 12,
1753 (char *)vh + 16, copy_len - 16);
1754
545eb370 1755 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1756 offset = 0;
1757
1758 producer = get_next_index(producer, tx_ring->num_desc);
1759 }
1760
1bcfd790
DP		 1761 while (copied < hdr_len) {
1762
1763 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1764 (hdr_len - copied));
1765
1766 hwdesc = &tx_ring->desc_head[producer];
1767 tx_ring->cmd_buf_arr[producer].skb = NULL;
1768
1769 skb_copy_from_linear_data_offset(skb, copied,
1770 (char *)hwdesc + offset, copy_len);
1771
1772 copied += copy_len;
1773 offset = 0;
1774
1775 producer = get_next_index(producer, tx_ring->num_desc);
1776 }
1777
1778 tx_ring->producer = producer;
1779 barrier();
cd1f8160
DP		 1780}
1781
ce644ed4
DP		 1782static int
1783netxen_map_tx_skb(struct pci_dev *pdev,
1784 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1785{
ce644ed4
DP		 1786 struct netxen_skb_frag *nf;
1787 struct skb_frag_struct *frag;
1788 int i, nr_frags;
1789 dma_addr_t map;
1790
1791 nr_frags = skb_shinfo(skb)->nr_frags;
1792 nf = &pbuf->frag_array[0];
1793
1794 map = pci_map_single(pdev, skb->data,
1795 skb_headlen(skb), PCI_DMA_TODEVICE);
1796 if (pci_dma_mapping_error(pdev, map))
1797 goto out_err;
6f703406 1798
ce644ed4
DP		 1799 nf->dma = map;
1800 nf->length = skb_headlen(skb);
1801
1802 for (i = 0; i < nr_frags; i++) {
1803 frag = &skb_shinfo(skb)->frags[i];
1804 nf = &pbuf->frag_array[i+1];
1805
1806 map = pci_map_page(pdev, frag->page, frag->page_offset,
1807 frag->size, PCI_DMA_TODEVICE);
1808 if (pci_dma_mapping_error(pdev, map))
1809 goto unwind;
1810
1811 nf->dma = map;
1812 nf->length = frag->size;
1813 }
1814
1815 return 0;
6f703406 1816
ce644ed4 1817unwind:
cf503e8f
DP		 1818 while (--i >= 0) {
1819 nf = &pbuf->frag_array[i+1];
ce644ed4 1820 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1821 }
ce644ed4
DP		 1822
1823 nf = &pbuf->frag_array[0];
1824 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1825
1826out_err:
1827 return -ENOMEM;
6f703406
DP		 1828}
1829
d32cc3d2
DP		 1830static inline void
1831netxen_clear_cmddesc(u64 *desc)
1832{
1bcfd790
DP		 1833 desc[0] = 0ULL;
1834 desc[2] = 0ULL;
d32cc3d2
DP		 1835}
1836
61357325 1837static netdev_tx_t
d32cc3d2 1838netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1839{
3176ff3e 1840 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1841 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1842 struct netxen_cmd_buffer *pbuf;
3d396eb1 1843 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1844 struct cmd_desc_type0 *hwdesc, *first_desc;
1845 struct pci_dev *pdev;
391587c3 1846 int i, k;
3d396eb1 1847
cb2107be 1848 u32 producer;
ce644ed4 1849 int frag_count, no_of_desc;
d877f1e3 1850 u32 num_txd = tx_ring->num_desc;
3d396eb1 1851
3d396eb1
AK		 1852 frag_count = skb_shinfo(skb)->nr_frags + 1;
1853
d877f1e3 1854 /* 4 fragments per cmd des */
3d396eb1 1855 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1856
7a9905e6 1857 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 1858 netif_stop_queue(netdev);
7a9905e6
RB		 1859 smp_mb();
1860 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1861 netif_start_queue(netdev);
1862 else
1863 return NETDEV_TX_BUSY;
53a01e00 1864 }
3d396eb1 1865
cb2107be 1866 producer = tx_ring->producer;
ce644ed4 1867 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1868
1bcfd790 1869 pdev = adapter->pdev;
391587c3 1870
ce644ed4 1871 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1872 goto drop_packet;
391587c3 1873
3d396eb1 1874 pbuf->skb = skb;
3d396eb1 1875 pbuf->frag_count = frag_count;
6f703406 1876
1bcfd790
DP		 1877 first_desc = hwdesc = &tx_ring->desc_head[producer];
1878 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1879
ce644ed4
DP		 1880 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1881 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1882
ce644ed4 1883 for (i = 0; i < frag_count; i++) {
3d396eb1 1884
ce644ed4
DP		 1885 k = i % 4;
1886
1887 if ((k == 0) && (i > 0)) {
1888 /* move to next desc.*/
ba53e6b4 1889 producer = get_next_index(producer, num_txd);
d877f1e3 1890 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1891 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1892 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1893 }
3d396eb1 1894
ce644ed4 1895 buffrag = &pbuf->frag_array[i];
3d396eb1 1896
ce644ed4 1897 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1898 switch (k) {
1899 case 0:
ce644ed4 1900 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1901 break;
1902 case 1:
ce644ed4 1903 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1904 break;
1905 case 2:
ce644ed4 1906 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1907 break;
1908 case 3:
ce644ed4 1909 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1910 break;
1911 }
3d396eb1 1912 }
ce644ed4 1913
1bcfd790 1914 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1915
1bcfd790 1916 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1917
cb2107be 1918 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1919
1bcfd790 1920 adapter->stats.txbytes += skb->len;
ba53e6b4 1921 adapter->stats.xmitcalled++;
3d396eb1 1922
3d396eb1 1923 return NETDEV_TX_OK;
6f703406
DP		 1924
1925drop_packet:
1926 adapter->stats.txdropped++;
1927 dev_kfree_skb_any(skb);
1928 return NETDEV_TX_OK;
3d396eb1
AK		 1929}
1930
a97342f9
DP		 1931static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1932{
1933 struct net_device *netdev = adapter->netdev;
1934 uint32_t temp, temp_state, temp_val;
1935 int rv = 0;
1936
f98a9f69 1937 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1938
1939 temp_state = nx_get_temp_state(temp);
1940 temp_val = nx_get_temp_val(temp);
1941
1942 if (temp_state == NX_TEMP_PANIC) {
1943 printk(KERN_ALERT
1944 "%s: Device temperature %d degrees C exceeds"
1945 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1946 netdev->name, temp_val);
a97342f9
DP		 1947 rv = 1;
1948 } else if (temp_state == NX_TEMP_WARN) {
1949 if (adapter->temp == NX_TEMP_NORMAL) {
1950 printk(KERN_ALERT
1951 "%s: Device temperature %d degrees C "
1952 "exceeds operating range."
1953 " Immediate action needed.\n",
e4135c2d 1954 netdev->name, temp_val);
a97342f9
DP		 1955 }
1956 } else {
1957 if (adapter->temp == NX_TEMP_WARN) {
1958 printk(KERN_INFO
1959 "%s: Device temperature is now %d degrees C"
e4135c2d 1960 " in normal range.\n", netdev->name,
a97342f9
DP		 1961 temp_val);
1962 }
1963 }
1964 adapter->temp = temp_state;
1965 return rv;
1966}
1967
3bf26ce3 1968void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1969{
1970 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1971
1972 if (adapter->ahw.linkup && !linkup) {
1973 printk(KERN_INFO "%s: %s NIC Link is down\n",
1974 netxen_nic_driver_name, netdev->name);
1975 adapter->ahw.linkup = 0;
1976 if (netif_running(netdev)) {
1977 netif_carrier_off(netdev);
1978 netif_stop_queue(netdev);
1979 }
e424fa9d 1980 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1981 } else if (!adapter->ahw.linkup && linkup) {
1982 printk(KERN_INFO "%s: %s NIC Link is up\n",
1983 netxen_nic_driver_name, netdev->name);
1984 adapter->ahw.linkup = 1;
1985 if (netif_running(netdev)) {
1986 netif_carrier_on(netdev);
1987 netif_wake_queue(netdev);
1988 }
e424fa9d 1989 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1990 }
1991}
1992
3bf26ce3
DP		 1993static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1994{
1995 u32 val, port, linkup;
1996
1997 port = adapter->physical_port;
1998
1999 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2000 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2001 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2002 linkup = (val == XG_LINK_UP_P3);
2003 } else {
f98a9f69 2004 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2005 val = (val >> port*8) & 0xff;
2006 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2007 }
2008
2009 netxen_advert_link_change(adapter, linkup);
2010}
2011
3d396eb1
AK		 2012static void netxen_tx_timeout(struct net_device *netdev)
2013{
e424fa9d 2014 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2015
6a581e93
DP		 2016 if (test_bit(__NX_RESETTING, &adapter->state))
2017 return;
2018
f17443f4 2019 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2020 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2021}
2022
74c520da 2023static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2024{
4790654c 2025 struct netxen_adapter *adapter =
3176ff3e 2026 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2027
b2af9cb0
DP		 2028 if (!netif_running(adapter->netdev))
2029 return;
2030
74c520da 2031 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2032 return;
2033
74c520da
AKS		 2034 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2035 goto request_reset;
2036
16d884bd 2037 rtnl_lock();
74c520da
AKS		 2038 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2039 /* try to scrub interrupt */
2040 netxen_napi_disable(adapter);
ba53e6b4 2041
74c520da
AKS		 2042 netxen_napi_enable(adapter);
2043
2044 netif_wake_queue(adapter->netdev);
2045
a598ae17 2046 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2047 } else {
a598ae17 2048 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2049 if (netxen_nic_reset_context(adapter)) {
2050 rtnl_unlock();
2051 goto request_reset;
74c520da 2052 }
74c520da 2053 }
16d884bd
AKS		 2054 adapter->netdev->trans_start = jiffies;
2055 rtnl_unlock();
2056 return;
74c520da
AKS		 2057
2058request_reset:
2059 adapter->need_fw_reset = 1;
ff8a306d 2060 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2061}
2062
7e12bb0a 2063static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
a97342f9
DP		 2064{
2065 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 2066 struct net_device_stats *stats = &netdev->stats;
a97342f9 2067
1bb482f8 2068 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2069 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2070 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2071 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2072 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2073 stats->tx_dropped = adapter->stats.txdropped;
2074
2075 return stats;
2076}
2077
e4c93c81 2078static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2079{
d8b100c5
DP		 2080 struct nx_host_sds_ring *sds_ring = data;
2081 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2082 u32 status = 0;
2083
195c5f98 2084 status = readl(adapter->isr_int_vec);
d71e1be8 2085
195c5f98 2086 if (!(status & adapter->int_vec_bit))
05aaa02d 2087 return IRQ_NONE;
e01872af 2088
195c5f98 2089 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2090 /* check interrupt state machine, to be sure */
195c5f98 2091 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2092 if (!ISR_LEGACY_INT_TRIGGERED(status))
2093 return IRQ_NONE;
2094
092bc571
DP		 2095 } else {
2096 unsigned long our_int = 0;
d71e1be8 2097
195c5f98 2098 our_int = readl(adapter->crb_int_state_reg);
092bc571 2099
d71e1be8 2100 /* not our interrupt */
092bc571 2101 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2102 return IRQ_NONE;
2103
092bc571 2104 /* claim interrupt */
195c5f98 2105 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2106
195c5f98 2107 /* clear interrupt */
d8b100c5 2108 netxen_nic_disable_int(sds_ring);
195c5f98 2109 }
092bc571 2110
195c5f98 2111 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2112 /* read twice to ensure write is flushed */
195c5f98
AKS		 2113 readl(adapter->isr_int_vec);
2114 readl(adapter->isr_int_vec);
092bc571 2115
d8b100c5 2116 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2117
2118 return IRQ_HANDLED;
2119}
2120
e4c93c81 2121static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2122{
d8b100c5
DP		 2123 struct nx_host_sds_ring *sds_ring = data;
2124 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2125
092bc571 2126 /* clear interrupt */
195c5f98 2127 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2128
d8b100c5 2129 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2130 return IRQ_HANDLED;
2131}
2132
b3df68f8
DP		 2133static irqreturn_t netxen_msix_intr(int irq, void *data)
2134{
d8b100c5 2135 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2136
d8b100c5 2137 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2138 return IRQ_HANDLED;
2139}
2140
bea3348e 2141static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2142{
d8b100c5
DP		 2143 struct nx_host_sds_ring *sds_ring =
2144 container_of(napi, struct nx_host_sds_ring, napi);
2145
2146 struct netxen_adapter *adapter = sds_ring->adapter;
2147
05aaa02d 2148 int tx_complete;
bea3348e 2149 int work_done;
3d396eb1 2150
05aaa02d 2151 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2152
d8b100c5 2153 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2154
05aaa02d 2155 if ((work_done < budget) && tx_complete) {
d8b100c5 2156 napi_complete(&sds_ring->napi);
f2251f66 2157 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2158 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2159 }
2160
bea3348e 2161 return work_done;
3d396eb1
AK		 2162}
2163
2164#ifdef CONFIG_NET_POLL_CONTROLLER
2165static void netxen_nic_poll_controller(struct net_device *netdev)
2166{
7b589a35
YL		 2167 int ring;
2168 struct nx_host_sds_ring *sds_ring;
3176ff3e 2169 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2170 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2171
3d396eb1 2172 disable_irq(adapter->irq);
7b589a35
YL		 2173 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2174 sds_ring = &recv_ctx->sds_rings[ring];
2175 netxen_intr(adapter->irq, sds_ring);
2176 }
3d396eb1
AK		 2177 enable_irq(adapter->irq);
2178}
2179#endif
3d396eb1 2180
6a581e93
DP		 2181static int
2182nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2183{
2184 int count;
2185 if (netxen_api_lock(adapter))
2186 return -EIO;
2187
2188 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2189
2190 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2191
2192 netxen_api_unlock(adapter);
2193 return count;
2194}
2195
2196static int
2197nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2198{
2199 int count;
2200 if (netxen_api_lock(adapter))
2201 return -EIO;
2202
2203 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2204 WARN_ON(count == 0);
2205
2206 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2207
2208 if (count == 0)
2209 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2210
2211 netxen_api_unlock(adapter);
2212 return count;
2213}
2214
e87ad553
AKS		 2215static int
2216nx_dev_request_aer(struct netxen_adapter *adapter)
2217{
2218 u32 state;
2219 int ret = -EINVAL;
2220
2221 if (netxen_api_lock(adapter))
2222 return ret;
2223
2224 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2225
2226 if (state == NX_DEV_NEED_AER)
2227 ret = 0;
2228 else if (state == NX_DEV_READY) {
2229 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2230 ret = 0;
2231 }
2232
2233 netxen_api_unlock(adapter);
2234 return ret;
2235}
2236
2237static int
74c520da
AKS		 2238nx_dev_request_reset(struct netxen_adapter *adapter)
2239{
2240 u32 state;
e87ad553 2241 int ret = -EINVAL;
74c520da
AKS		 2242
2243 if (netxen_api_lock(adapter))
e87ad553 2244 return ret;
74c520da
AKS		 2245
2246 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2247
e87ad553
AKS		 2248 if (state == NX_DEV_NEED_RESET)
2249 ret = 0;
2250 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2251 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
e87ad553
AKS		 2252 ret = 0;
2253 }
74c520da
AKS		 2254
2255 netxen_api_unlock(adapter);
e87ad553
AKS		 2256
2257 return ret;
74c520da
AKS		 2258}
2259
6a581e93
DP		 2260static int
2261netxen_can_start_firmware(struct netxen_adapter *adapter)
2262{
2263 int count;
2264 int can_start = 0;
2265
2266 if (netxen_api_lock(adapter))
2267 return 0;
2268
2269 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2270
2271 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2272 count = 0;
2273
2274 if (count == 0) {
2275 can_start = 1;
2276 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2277 }
2278
2279 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2280
2281 netxen_api_unlock(adapter);
2282
2283 return can_start;
2284}
2285
2286static void
2287netxen_schedule_work(struct netxen_adapter *adapter,
2288 work_func_t func, int delay)
2289{
2290 INIT_DELAYED_WORK(&adapter->fw_work, func);
2291 schedule_delayed_work(&adapter->fw_work, delay);
2292}
2293
2294static void
2295netxen_cancel_fw_work(struct netxen_adapter *adapter)
2296{
2297 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2298 msleep(10);
2299
2300 cancel_delayed_work_sync(&adapter->fw_work);
2301}
2302
2303static void
2304netxen_attach_work(struct work_struct *work)
2305{
2306 struct netxen_adapter *adapter = container_of(work,
2307 struct netxen_adapter, fw_work.work);
2308 struct net_device *netdev = adapter->netdev;
2309 int err = 0;
2310
2311 if (netif_running(netdev)) {
2312 err = netxen_nic_attach(adapter);
2313 if (err)
2314 goto done;
2315
2316 err = netxen_nic_up(adapter, netdev);
2317 if (err) {
2318 netxen_nic_detach(adapter);
2319 goto done;
2320 }
2321
d0725e4d 2322 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2323 }
2324
2325 netif_device_attach(netdev);
2326
2327done:
2328 adapter->fw_fail_cnt = 0;
2329 clear_bit(__NX_RESETTING, &adapter->state);
2330 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2331}
2332
2333static void
2334netxen_fwinit_work(struct work_struct *work)
2335{
2336 struct netxen_adapter *adapter = container_of(work,
2337 struct netxen_adapter, fw_work.work);
2338 int dev_state;
2339
2340 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2341
2342 switch (dev_state) {
2343 case NX_DEV_COLD:
2344 case NX_DEV_READY:
74c520da
AKS		 2345 if (!netxen_start_firmware(adapter)) {
2346 netxen_schedule_work(adapter, netxen_attach_work, 0);
2347 return;
2348 }
2349 break;
6a581e93 2350
6b50ea15 2351 case NX_DEV_NEED_RESET:
6a581e93
DP		 2352 case NX_DEV_INITALIZING:
2353 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2354 netxen_schedule_work(adapter,
2355 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2356 return;
2357 }
6a581e93
DP		 2358
2359 case NX_DEV_FAILED:
2360 default:
8f9b3f69 2361 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2362 break;
2363 }
2364
6a581e93
DP		 2365 clear_bit(__NX_RESETTING, &adapter->state);
2366}
2367
2368static void
2369netxen_detach_work(struct work_struct *work)
2370{
2371 struct netxen_adapter *adapter = container_of(work,
2372 struct netxen_adapter, fw_work.work);
2373 struct net_device *netdev = adapter->netdev;
2374 int ref_cnt, delay;
2375 u32 status;
2376
2377 netif_device_detach(netdev);
2378
6f771419 2379 netxen_nic_down(adapter, netdev);
6a581e93 2380
e15eec28 2381 rtnl_lock();
6a581e93 2382 netxen_nic_detach(adapter);
e15eec28 2383 rtnl_unlock();
6a581e93
DP		 2384
2385 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2386
6a581e93 2387 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2388 goto err_ret;
6a581e93
DP		 2389
2390 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2391 goto err_ret;
2392
2393 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2394
6b50ea15
AKS		 2395 if (ref_cnt == -EIO)
2396 goto err_ret;
2397
6a581e93
DP		 2398 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2399
2400 adapter->fw_wait_cnt = 0;
2401 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2402
2403 return;
2404
2405err_ret:
2406 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2407}
2408
2409static int
2410netxen_check_health(struct netxen_adapter *adapter)
2411{
2412 u32 state, heartbit;
2413 struct net_device *netdev = adapter->netdev;
2414
e87ad553
AKS		 2415 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2416 if (state == NX_DEV_NEED_AER)
2417 return 0;
2418
6a581e93
DP		 2419 if (netxen_nic_check_temp(adapter))
2420 goto detach;
2421
74c520da 2422 if (adapter->need_fw_reset) {
e87ad553
AKS		 2423 if (nx_dev_request_reset(adapter))
2424 return 0;
74c520da
AKS		 2425 goto detach;
2426 }
2427
e87ad553
AKS		 2428 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2429 * 1. Tx timeout 2. Fw hang
2430 * Send request to destroy context in case of tx timeout only
2431 * and doesn't required in case of Fw hang
2432 */
6a808c6c
AKS		 2433 if (state == NX_DEV_NEED_RESET) {
2434 adapter->need_fw_reset = 1;
e87ad553
AKS		 2435 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2436 goto detach;
6a808c6c 2437 }
6a581e93
DP		 2438
2439 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2440 return 0;
2441
2442 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2443 if (heartbit != adapter->heartbit) {
2444 adapter->heartbit = heartbit;
2445 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2446 if (adapter->need_fw_reset)
2447 goto detach;
6a581e93
DP		 2448 return 0;
2449 }
2450
2451 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2452 return 0;
2453
e87ad553
AKS		 2454 if (nx_dev_request_reset(adapter))
2455 return 0;
2456
6a581e93
DP		 2457 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2458
2459 dev_info(&netdev->dev, "firmware hang detected\n");
2460
2461detach:
caa2dd53
NK		 2462 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2463 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2464 netxen_schedule_work(adapter, netxen_detach_work, 0);
2465 return 1;
2466}
2467
2468static void
2469netxen_fw_poll_work(struct work_struct *work)
2470{
2471 struct netxen_adapter *adapter = container_of(work,
2472 struct netxen_adapter, fw_work.work);
2473
2474 if (test_bit(__NX_RESETTING, &adapter->state))
2475 goto reschedule;
2476
2477 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2478 if (!adapter->has_link_events) {
2479
2480 netxen_nic_handle_phy_intr(adapter);
2481
2482 if (adapter->link_changed)
2483 netxen_nic_set_link_parameters(adapter);
2484 }
2485 }
2486
2487 if (netxen_check_health(adapter))
2488 return;
2489
2490reschedule:
2491 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2492}
2493
fa3ce355
NK		 2494static ssize_t
2495netxen_store_bridged_mode(struct device *dev,
2496 struct device_attribute *attr, const char *buf, size_t len)
2497{
2498 struct net_device *net = to_net_dev(dev);
2499 struct netxen_adapter *adapter = netdev_priv(net);
2500 unsigned long new;
2501 int ret = -EINVAL;
2502
2503 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2504 goto err_out;
2505
2506 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2507 goto err_out;
2508
2509 if (strict_strtoul(buf, 2, &new))
2510 goto err_out;
2511
2512 if (!netxen_config_bridged_mode(adapter, !!new))
2513 ret = len;
2514
2515err_out:
2516 return ret;
2517}
2518
2519static ssize_t
2520netxen_show_bridged_mode(struct device *dev,
2521 struct device_attribute *attr, char *buf)
2522{
2523 struct net_device *net = to_net_dev(dev);
2524 struct netxen_adapter *adapter;
2525 int bridged_mode = 0;
2526
2527 adapter = netdev_priv(net);
2528
2529 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2530 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2531
2532 return sprintf(buf, "%d\n", bridged_mode);
2533}
2534
2535static struct device_attribute dev_attr_bridged_mode = {
2536 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2537 .show = netxen_show_bridged_mode,
2538 .store = netxen_store_bridged_mode,
2539};
2540
70f9cf89
DP		 2541static ssize_t
2542netxen_store_diag_mode(struct device *dev,
2543 struct device_attribute *attr, const char *buf, size_t len)
2544{
2545 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2546 unsigned long new;
2547
2548 if (strict_strtoul(buf, 2, &new))
2549 return -EINVAL;
2550
2551 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2552 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2553
2554 return len;
2555}
2556
2557static ssize_t
2558netxen_show_diag_mode(struct device *dev,
2559 struct device_attribute *attr, char *buf)
2560{
2561 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2562
2563 return sprintf(buf, "%d\n",
2564 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2565}
2566
2567static struct device_attribute dev_attr_diag_mode = {
2568 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2569 .show = netxen_show_diag_mode,
2570 .store = netxen_store_diag_mode,
2571};
2572
2573static int
2574netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2575 loff_t offset, size_t size)
2576{
0b9715e6
AKS		 2577 size_t crb_size = 4;
2578
70f9cf89
DP		 2579 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2580 return -EIO;
2581
0b9715e6
AKS		 2582 if (offset < NETXEN_PCI_CRBSPACE) {
2583 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2584 return -EINVAL;
70f9cf89 2585
0b9715e6
AKS		 2586 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2587 NETXEN_PCI_CAMQM_2M_END))
2588 crb_size = 8;
2589 else
2590 return -EINVAL;
2591 }
2592
2593 if ((size != crb_size) || (offset & (crb_size-1)))
2594 return -EINVAL;
70f9cf89
DP		 2595
2596 return 0;
2597}
2598
2599static ssize_t
2c3c8bea
CW		 2600netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2601 struct bin_attribute *attr,
70f9cf89
DP		 2602 char *buf, loff_t offset, size_t size)
2603{
2604 struct device *dev = container_of(kobj, struct device, kobj);
2605 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2606 u32 data;
0b9715e6 2607 u64 qmdata;
70f9cf89
DP		 2608 int ret;
2609
2610 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2611 if (ret != 0)
2612 return ret;
2613
0b9715e6
AKS		 2614 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2615 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2616 NETXEN_PCI_CAMQM_2M_END)) {
2617 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2618 memcpy(buf, &qmdata, size);
2619 } else {
2620 data = NXRD32(adapter, offset);
2621 memcpy(buf, &data, size);
2622 }
2623
70f9cf89
DP		 2624 return size;
2625}
2626
2627static ssize_t
2c3c8bea
CW		 2628netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2629 struct bin_attribute *attr,
70f9cf89
DP		 2630 char *buf, loff_t offset, size_t size)
2631{
2632 struct device *dev = container_of(kobj, struct device, kobj);
2633 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2634 u32 data;
0b9715e6 2635 u64 qmdata;
70f9cf89
DP		 2636 int ret;
2637
2638 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2639 if (ret != 0)
2640 return ret;
2641
0b9715e6
AKS		 2642 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2643 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2644 NETXEN_PCI_CAMQM_2M_END)) {
2645 memcpy(&qmdata, buf, size);
2646 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2647 } else {
2648 memcpy(&data, buf, size);
2649 NXWR32(adapter, offset, data);
2650 }
2651
70f9cf89
DP		 2652 return size;
2653}
2654
2655static int
2656netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2657 loff_t offset, size_t size)
2658{
2659 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2660 return -EIO;
2661
2662 if ((size != 8) || (offset & 0x7))
2663 return -EIO;
2664
2665 return 0;
2666}
2667
2668static ssize_t
2c3c8bea
CW		 2669netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2670 struct bin_attribute *attr,
70f9cf89
DP		 2671 char *buf, loff_t offset, size_t size)
2672{
2673 struct device *dev = container_of(kobj, struct device, kobj);
2674 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2675 u64 data;
2676 int ret;
2677
2678 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2679 if (ret != 0)
2680 return ret;
2681
2682 if (adapter->pci_mem_read(adapter, offset, &data))
2683 return -EIO;
2684
2685 memcpy(buf, &data, size);
2686
2687 return size;
2688}
2689
2c3c8bea 2690static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2691 struct bin_attribute *attr, char *buf,
2692 loff_t offset, size_t size)
2693{
2694 struct device *dev = container_of(kobj, struct device, kobj);
2695 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2696 u64 data;
2697 int ret;
2698
2699 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2700 if (ret != 0)
2701 return ret;
2702
2703 memcpy(&data, buf, size);
2704
2705 if (adapter->pci_mem_write(adapter, offset, data))
2706 return -EIO;
2707
2708 return size;
2709}
2710
2711
2712static struct bin_attribute bin_attr_crb = {
2713 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2714 .size = 0,
2715 .read = netxen_sysfs_read_crb,
2716 .write = netxen_sysfs_write_crb,
2717};
2718
2719static struct bin_attribute bin_attr_mem = {
2720 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2721 .size = 0,
2722 .read = netxen_sysfs_read_mem,
2723 .write = netxen_sysfs_write_mem,
2724};
2725
caa2dd53 2726
fa3ce355
NK		 2727static void
2728netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2729{
2730 struct net_device *netdev = adapter->netdev;
2731 struct device *dev = &netdev->dev;
2732
2733 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2734 /* bridged_mode control */
2735 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2736 dev_warn(&netdev->dev,
2737 "failed to create bridged_mode sysfs entry\n");
2738 }
2739 }
2740}
2741
2742static void
2743netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2744{
2745 struct net_device *netdev = adapter->netdev;
2746 struct device *dev = &netdev->dev;
2747
2748 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2749 device_remove_file(dev, &dev_attr_bridged_mode);
2750}
2751
70f9cf89
DP		 2752static void
2753netxen_create_diag_entries(struct netxen_adapter *adapter)
2754{
2755 struct pci_dev *pdev = adapter->pdev;
2756 struct device *dev;
2757
2758 dev = &pdev->dev;
2759 if (device_create_file(dev, &dev_attr_diag_mode))
2760 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2761 if (device_create_bin_file(dev, &bin_attr_crb))
2762 dev_info(dev, "failed to create crb sysfs entry\n");
2763 if (device_create_bin_file(dev, &bin_attr_mem))
2764 dev_info(dev, "failed to create mem sysfs entry\n");
2765}
2766
2767
2768static void
2769netxen_remove_diag_entries(struct netxen_adapter *adapter)
2770{
2771 struct pci_dev *pdev = adapter->pdev;
2772 struct device *dev = &pdev->dev;
2773
2774 device_remove_file(dev, &dev_attr_diag_mode);
2775 device_remove_bin_file(dev, &bin_attr_crb);
2776 device_remove_bin_file(dev, &bin_attr_mem);
2777}
2778
044824d9
DP		 2779#ifdef CONFIG_INET
2780
6598b169
DP		 2781#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2782
2783static int
2784netxen_destip_supported(struct netxen_adapter *adapter)
2785{
2786 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2787 return 0;
2788
2789 if (adapter->ahw.cut_through)
2790 return 0;
2791
2792 return 1;
2793}
2794
d0725e4d
AKS		 2795static void
2796netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2797{
2798 struct in_device *indev;
2799 struct netxen_adapter *adapter = netdev_priv(dev);
2800
3db76755 2801 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2802 return;
2803
2804 indev = in_dev_get(dev);
2805 if (!indev)
2806 return;
2807
2808 for_ifa(indev) {
2809 switch (event) {
2810 case NETDEV_UP:
2811 netxen_config_ipaddr(adapter,
2812 ifa->ifa_address, NX_IP_UP);
2813 break;
2814 case NETDEV_DOWN:
2815 netxen_config_ipaddr(adapter,
2816 ifa->ifa_address, NX_IP_DOWN);
2817 break;
2818 default:
2819 break;
2820 }
2821 } endfor_ifa(indev);
2822
2823 in_dev_put(indev);
d0725e4d
AKS		 2824}
2825
6598b169
DP		 2826static int netxen_netdev_event(struct notifier_block *this,
2827 unsigned long event, void *ptr)
2828{
2829 struct netxen_adapter *adapter;
2830 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2831
2832recheck:
2833 if (dev == NULL)
2834 goto done;
2835
2836 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2837 dev = vlan_dev_real_dev(dev);
2838 goto recheck;
2839 }
2840
2841 if (!is_netxen_netdev(dev))
2842 goto done;
2843
2844 adapter = netdev_priv(dev);
2845
d0725e4d 2846 if (!adapter)
6598b169
DP		 2847 goto done;
2848
2849 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2850 goto done;
2851
d0725e4d 2852 netxen_config_indev_addr(dev, event);
6598b169
DP		 2853done:
2854 return NOTIFY_DONE;
2855}
2856
2857static int
2858netxen_inetaddr_event(struct notifier_block *this,
2859 unsigned long event, void *ptr)
2860{
2861 struct netxen_adapter *adapter;
2862 struct net_device *dev;
2863
2864 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2865
2866 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2867
2868recheck:
2869 if (dev == NULL || !netif_running(dev))
2870 goto done;
2871
2872 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2873 dev = vlan_dev_real_dev(dev);
2874 goto recheck;
2875 }
2876
2877 if (!is_netxen_netdev(dev))
2878 goto done;
2879
2880 adapter = netdev_priv(dev);
2881
2882 if (!adapter || !netxen_destip_supported(adapter))
2883 goto done;
2884
2885 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2886 goto done;
2887
2888 switch (event) {
2889 case NETDEV_UP:
2890 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2891 break;
2892 case NETDEV_DOWN:
2893 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2894 break;
2895 default:
2896 break;
2897 }
2898
2899done:
2900 return NOTIFY_DONE;
2901}
2902
2903static struct notifier_block netxen_netdev_cb = {
2904 .notifier_call = netxen_netdev_event,
2905};
2906
2907static struct notifier_block netxen_inetaddr_cb = {
2908 .notifier_call = netxen_inetaddr_event,
2909};
9feae56c
RD		 2910#else
2911static void
2912netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2913{ }
044824d9 2914#endif
6598b169 2915
e87ad553
AKS		 2916static struct pci_error_handlers netxen_err_handler = {
2917 .error_detected = netxen_io_error_detected,
2918 .slot_reset = netxen_io_slot_reset,
2919 .resume = netxen_io_resume,
2920};
2921
3d396eb1
AK		 2922static struct pci_driver netxen_driver = {
2923 .name = netxen_nic_driver_name,
2924 .id_table = netxen_pci_tbl,
2925 .probe = netxen_nic_probe,
0b72e659 2926 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2927#ifdef CONFIG_PM
0b72e659 2928 .suspend = netxen_nic_suspend,
22b5794b 2929 .resume = netxen_nic_resume,
01542cd1 2930#endif
e87ad553
AKS		 2931 .shutdown = netxen_nic_shutdown,
2932 .err_handler = &netxen_err_handler
3d396eb1
AK		 2933};
2934
3d396eb1
AK		 2935static int __init netxen_init_module(void)
2936{
ff4fbd43
DP		 2937 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2938
044824d9 2939#ifdef CONFIG_INET
6598b169
DP		 2940 register_netdevice_notifier(&netxen_netdev_cb);
2941 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2942#endif
184231bd 2943 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2944}
2945
2946module_init(netxen_init_module);
2947
2948static void __exit netxen_exit_module(void)
2949{
3d396eb1 2950 pci_unregister_driver(&netxen_driver);
6598b169 2951
044824d9 2952#ifdef CONFIG_INET
6598b169
DP		 2953 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2954 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2955#endif
3d396eb1
AK		 2956}
2957
2958module_exit(netxen_exit_module);
Clone of davem's net-next-2.6 tree