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net/usb: Add IPv6 support to the LG-VL600 LTE USB modem driver
[linux-2.6-block.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
0438a1b2 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 45
ceded32f 46char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 48 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 49
2956640d
DP		 50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52/* Default to restricted 1G auto-neg mode */
53static int wol_port_mode = 5;
54
55static int use_msi = 1;
56
57static int use_msi_x = 1;
58
afdafff1
SH		 59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 62
3d396eb1 63static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 64 const struct pci_device_id *ent);
3d396eb1
AK		 65static void __devexit netxen_nic_remove(struct pci_dev *pdev);
66static int netxen_nic_open(struct net_device *netdev);
67static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
3d396eb1 70static void netxen_tx_timeout(struct net_device *netdev);
74c520da 71static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 72static void netxen_fw_poll_work(struct work_struct *work);
73static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 76static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void netxen_nic_poll_controller(struct net_device *netdev);
79#endif
fa3ce355
NK		 80
81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 83static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 85
e87ad553 86static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 87static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88static int netxen_can_start_firmware(struct netxen_adapter *adapter);
89
1494a814 90static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 91static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 92static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 93
d0725e4d 94static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
47fd428c 95static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
96 struct rtnl_link_stats64 *stats);
7e12bb0a 97static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 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
7e12bb0a 458static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 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
066413da
MM		 489static u32 netxen_fix_features(struct net_device *dev, u32 features)
490{
491 if (!(features & NETIF_F_RXCSUM)) {
492 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
493
494 features &= ~NETIF_F_LRO;
495 }
496
497 return features;
498}
499
500static int netxen_set_features(struct net_device *dev, u32 features)
501{
502 struct netxen_adapter *adapter = netdev_priv(dev);
503 int hw_lro;
504
505 if (!((dev->features ^ features) & NETIF_F_LRO))
506 return 0;
507
508 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
509 : NETXEN_NIC_LRO_DISABLED;
510
511 if (netxen_config_hw_lro(adapter, hw_lro))
512 return -EIO;
513
514 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
515 return -EIO;
516
517 return 0;
518}
519
1abd266f
SH		 520static const struct net_device_ops netxen_netdev_ops = {
521 .ndo_open = netxen_nic_open,
522 .ndo_stop = netxen_nic_close,
523 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 524 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f
SH		 525 .ndo_validate_addr = eth_validate_addr,
526 .ndo_set_multicast_list = netxen_set_multicast_list,
527 .ndo_set_mac_address = netxen_nic_set_mac,
528 .ndo_change_mtu = netxen_nic_change_mtu,
529 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 530 .ndo_fix_features = netxen_fix_features,
531 .ndo_set_features = netxen_set_features,
1abd266f
SH		 532#ifdef CONFIG_NET_POLL_CONTROLLER
533 .ndo_poll_controller = netxen_nic_poll_controller,
534#endif
535};
536
97daee83
DP		 537static void
538netxen_setup_intr(struct netxen_adapter *adapter)
539{
540 struct netxen_legacy_intr_set *legacy_intrp;
541 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 542 int err, num_msix;
543
544 if (adapter->rss_supported) {
545 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
546 MSIX_ENTRIES_PER_ADAPTER : 2;
547 } else
548 num_msix = 1;
549
550 adapter->max_sds_rings = 1;
97daee83
DP		 551
552 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 553
554 if (adapter->ahw.revision_id >= NX_P3_B0)
555 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
556 else
557 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 558
559 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
560 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
561 legacy_intrp->tgt_status_reg);
562 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
563 legacy_intrp->tgt_mask_reg);
564 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
565 legacy_intrp->pci_int_reg);
566 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
567
568 if (adapter->ahw.revision_id >= NX_P3_B1)
569 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
570 ISR_INT_STATE_REG);
571 else
572 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
573 CRB_INT_VECTOR);
97daee83
DP		 574
575 netxen_set_msix_bit(pdev, 0);
576
577 if (adapter->msix_supported) {
578
be339aee
DP		 579 netxen_init_msix_entries(adapter, num_msix);
580 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
581 if (err == 0) {
582 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
583 netxen_set_msix_bit(pdev, 1);
97daee83 584
be339aee
DP		 585 if (adapter->rss_supported)
586 adapter->max_sds_rings = num_msix;
97daee83 587
be339aee
DP		 588 dev_info(&pdev->dev, "using msi-x interrupts\n");
589 return;
590 }
591
592 if (err > 0)
593 pci_disable_msix(pdev);
594
595 /* fall through for msi */
97daee83 596 }
be339aee
DP		 597
598 if (use_msi && !pci_enable_msi(pdev)) {
599 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 600 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
601 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 602 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 603 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 604 return;
605 }
606
607 dev_info(&pdev->dev, "using legacy interrupts\n");
608 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 609}
610
611static void
612netxen_teardown_intr(struct netxen_adapter *adapter)
613{
614 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
615 pci_disable_msix(adapter->pdev);
616 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
617 pci_disable_msi(adapter->pdev);
618}
619
620static void
621netxen_cleanup_pci_map(struct netxen_adapter *adapter)
622{
623 if (adapter->ahw.db_base != NULL)
624 iounmap(adapter->ahw.db_base);
625 if (adapter->ahw.pci_base0 != NULL)
626 iounmap(adapter->ahw.pci_base0);
627 if (adapter->ahw.pci_base1 != NULL)
628 iounmap(adapter->ahw.pci_base1);
629 if (adapter->ahw.pci_base2 != NULL)
630 iounmap(adapter->ahw.pci_base2);
631}
632
633static int
634netxen_setup_pci_map(struct netxen_adapter *adapter)
635{
97daee83
DP		 636 void __iomem *db_ptr = NULL;
637
71fb62fb 638 resource_size_t mem_base, db_base;
afbe5cd6 639 unsigned long mem_len, db_len = 0;
97daee83
DP		 640
641 struct pci_dev *pdev = adapter->pdev;
642 int pci_func = adapter->ahw.pci_func;
afbe5cd6 643 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 644
645 int err = 0;
646
647 /*
648 * Set the CRB window to invalid. If any register in window 0 is
649 * accessed it should set the window to 0 and then reset it to 1.
650 */
907fa120 651 adapter->ahw.crb_win = -1;
47abe356 652 adapter->ahw.ocm_win = -1;
97daee83
DP		 653
654 /* remap phys address */
655 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
656 mem_len = pci_resource_len(pdev, 0);
97daee83 657
97daee83
DP		 658 /* 128 Meg of memory */
659 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 660
661 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
662 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 663 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 664 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 665 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 666 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
667 ahw->pci_base2 == NULL) {
668 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
669 err = -EIO;
670 goto err_out;
671 }
672
673 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
674
97daee83 675 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 676
677 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
678 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 679 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 680 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
681 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
682 err = -EIO;
683 goto err_out;
684 }
685
97daee83 686 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 687
afbe5cd6
AKS		 688 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
689 if (ahw->pci_base0 == NULL) {
97daee83
DP		 690 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
691 return -EIO;
692 }
afbe5cd6 693 ahw->pci_len0 = mem_len;
97daee83
DP		 694 } else {
695 return -EIO;
696 }
697
195c5f98
AKS		 698 netxen_setup_hwops(adapter);
699
97daee83
DP		 700 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
701
6abb4b83
AKS		 702 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
703 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
704 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
705
706 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 707 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
708 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
709 }
710
97daee83
DP		 711 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
712 goto skip_doorbell;
713
714 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
715 db_len = pci_resource_len(pdev, 4);
716
717 if (db_len == 0) {
718 printk(KERN_ERR "%s: doorbell is disabled\n",
719 netxen_nic_driver_name);
720 err = -EIO;
721 goto err_out;
722 }
723
724 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
725 if (!db_ptr) {
726 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
727 netxen_nic_driver_name);
728 err = -EIO;
729 goto err_out;
730 }
731
732skip_doorbell:
733 adapter->ahw.db_base = db_ptr;
734 adapter->ahw.db_len = db_len;
735 return 0;
736
737err_out:
738 netxen_cleanup_pci_map(adapter);
739 return err;
740}
741
2b9e62ee
DP		 742static void
743netxen_check_options(struct netxen_adapter *adapter)
744{
745 u32 fw_major, fw_minor, fw_build;
746 char brd_name[NETXEN_MAX_SHORT_NAME];
747 char serial_num[32];
748 int i, offset, val;
749 int *ptr32;
750 struct pci_dev *pdev = adapter->pdev;
751
752 adapter->driver_mismatch = 0;
753
754 ptr32 = (int *)&serial_num;
755 offset = NX_FW_SERIAL_NUM_OFFSET;
756 for (i = 0; i < 8; i++) {
757 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
758 dev_err(&pdev->dev, "error reading board info\n");
759 adapter->driver_mismatch = 1;
760 return;
761 }
762 ptr32[i] = cpu_to_le32(val);
763 offset += sizeof(u32);
764 }
765
766 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
767 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
768 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
769
770 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
771
772 if (adapter->portnum == 0) {
773 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
774
c25c0b9b
DP		 775 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
776 module_name(THIS_MODULE),
2b9e62ee
DP		 777 brd_name, serial_num, adapter->ahw.revision_id);
778 }
779
780 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
781 adapter->driver_mismatch = 1;
782 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
783 fw_major, fw_minor, fw_build);
784 return;
785 }
786
787 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
788 i = NXRD32(adapter, NETXEN_SRE_MISC);
789 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
790 }
791
792 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
793 fw_major, fw_minor, fw_build,
794 adapter->ahw.cut_through ? "cut-through" : "legacy");
795
796 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
797 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
798
2b9e62ee
DP		 799 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
800 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
801 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
802 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
803 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
804 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
805 }
806
807 adapter->msix_supported = 0;
808 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
809 adapter->msix_supported = !!use_msi_x;
810 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 811 } else {
812 u32 flashed_ver = 0;
813 netxen_rom_fast_read(adapter,
814 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
815 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
816
817 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
818 switch (adapter->ahw.board_type) {
819 case NETXEN_BRDTYPE_P2_SB31_10G:
820 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
821 adapter->msix_supported = !!use_msi_x;
822 adapter->rss_supported = !!use_msi_x;
823 break;
824 default:
825 break;
826 }
2b9e62ee
DP		 827 }
828 }
829
830 adapter->num_txd = MAX_CMD_DESCRIPTORS;
831
832 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
833 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
834 adapter->max_rds_rings = 3;
835 } else {
836 adapter->num_lro_rxd = 0;
837 adapter->max_rds_rings = 2;
838 }
839}
840
ba599d4f 841static int
6a581e93 842netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 843{
844 int val, err, first_boot;
845 struct pci_dev *pdev = adapter->pdev;
846
2b9e62ee
DP		 847 /* required for NX2031 dummy dma */
848 err = nx_set_dma_mask(adapter);
849 if (err)
850 return err;
851
6a581e93 852 if (!netxen_can_start_firmware(adapter))
96f2ebd2 853 goto wait_init;
0b72e659 854
f98a9f69 855 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 856
857 err = netxen_check_hw_init(adapter, first_boot);
858 if (err) {
859 dev_err(&pdev->dev, "error in init HW init sequence\n");
860 return err;
861 }
862
6a581e93 863 netxen_request_firmware(adapter);
f7185c71 864
67c38fc6 865 err = netxen_need_fw_reset(adapter);
1dbc84a7 866 if (err < 0)
db4cfd8a 867 goto err_out;
1dbc84a7 868 if (err == 0)
8f9b3f69 869 goto wait_init;
67c38fc6 870
ba599d4f 871 if (first_boot != 0x55555555) {
f98a9f69 872 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 873 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 874 msleep(1);
875 }
567c6c4e 876
f98a9f69 877 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 878 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
879 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
880
567c6c4e
DP		 881 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
882 netxen_set_port_mode(adapter);
883
db4cfd8a
DP		 884 err = netxen_load_firmware(adapter);
885 if (err)
886 goto err_out;
ba599d4f 887
6a581e93
DP		 888 netxen_release_firmware(adapter);
889
ba599d4f
DP		 890 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
891
892 /* Initialize multicast addr pool owners */
893 val = 0x7654;
1e2d0059 894 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 895 val |= 0x0f000000;
f98a9f69 896 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 897
898 }
899
83ac51fa 900 err = netxen_init_dummy_dma(adapter);
ba599d4f 901 if (err)
db4cfd8a 902 goto err_out;
ba599d4f
DP		 903
904 /*
905 * Tell the hardware our version number.
906 */
907 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
908 | ((_NETXEN_NIC_LINUX_MINOR << 8))
909 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 910 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 911
96f2ebd2 912wait_init:
ba599d4f
DP		 913 /* Handshake with the card before we register the devices. */
914 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
915 if (err) {
83ac51fa 916 netxen_free_dummy_dma(adapter);
db4cfd8a 917 goto err_out;
ba599d4f
DP		 918 }
919
8f9b3f69
AKS		 920 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
921
68b3cae0
DP		 922 nx_update_dma_mask(adapter);
923
6a581e93 924 netxen_check_options(adapter);
68b3cae0 925
74c520da
AKS		 926 adapter->need_fw_reset = 0;
927
ec5c50cb 928 /* fall through and release firmware */
db4cfd8a
DP		 929
930err_out:
931 netxen_release_firmware(adapter);
932 return err;
ba599d4f
DP		 933}
934
9f5bc7f1
DP		 935static int
936netxen_nic_request_irq(struct netxen_adapter *adapter)
937{
938 irq_handler_t handler;
d8b100c5
DP		 939 struct nx_host_sds_ring *sds_ring;
940 int err, ring;
941
ab392d2d 942 unsigned long flags = 0;
9f5bc7f1 943 struct net_device *netdev = adapter->netdev;
d8b100c5 944 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 945
9f5bc7f1
DP		 946 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
947 handler = netxen_msix_intr;
948 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
949 handler = netxen_msi_intr;
950 else {
951 flags |= IRQF_SHARED;
952 handler = netxen_intr;
953 }
954 adapter->irq = netdev->irq;
955
d8b100c5
DP		 956 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
957 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 958 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 959 err = request_irq(sds_ring->irq, handler,
960 flags, sds_ring->name, sds_ring);
961 if (err)
962 return err;
963 }
964
965 return 0;
966}
967
968static void
969netxen_nic_free_irq(struct netxen_adapter *adapter)
970{
971 int ring;
972 struct nx_host_sds_ring *sds_ring;
973
974 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
975
976 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
977 sds_ring = &recv_ctx->sds_rings[ring];
978 free_irq(sds_ring->irq, sds_ring);
979 }
9f5bc7f1
DP		 980}
981
ca2ef330
DP		 982static void
983netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
984{
985 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
986 adapter->coal.normal.data.rx_time_us =
987 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
988 adapter->coal.normal.data.rx_packets =
989 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
990 adapter->coal.normal.data.tx_time_us =
991 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
992 adapter->coal.normal.data.tx_packets =
993 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
994}
995
6f771419 996/* with rtnl_lock */
9f5bc7f1 997static int
6f771419 998__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 999{
1000 int err;
1001
db4cfd8a
DP		 1002 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1003 return -EIO;
1004
9f5bc7f1
DP		 1005 err = adapter->init_port(adapter, adapter->physical_port);
1006 if (err) {
1007 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1008 netxen_nic_driver_name, adapter->portnum);
1009 return err;
1010 }
3d0a3cc9 1011 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1012 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1013
3d0a3cc9
DP		 1014 adapter->set_multi(netdev);
1015 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1016
1017 adapter->ahw.linkup = 0;
9f5bc7f1 1018
d8b100c5
DP		 1019 if (adapter->max_sds_rings > 1)
1020 netxen_config_rss(adapter, 1);
9f5bc7f1 1021
ca2ef330
DP		 1022 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1023 netxen_config_intr_coalesce(adapter);
1024
e4baaf71 1025 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1026 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1027
b2af9cb0
DP		 1028 netxen_napi_enable(adapter);
1029
5103c9f7 1030 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1031 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1032 else
1033 netxen_nic_set_link_parameters(adapter);
1034
6a581e93 1035 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1036 return 0;
1037}
1038
6f771419
AKS		 1039/* Usage: During resume and firmware recovery module.*/
1040
1041static inline int
1042netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1043{
1044 int err = 0;
1045
1046 rtnl_lock();
1047 if (netif_running(netdev))
1048 err = __netxen_nic_up(adapter, netdev);
1049 rtnl_unlock();
1050
1051 return err;
1052}
1053
1054/* with rtnl_lock */
9f5bc7f1 1055static void
6f771419 1056__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1057{
db4cfd8a
DP		 1058 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1059 return;
1060
f2251f66
AKS		 1061 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1062 return;
6a581e93 1063
f2251f66 1064 smp_mb();
b2af9cb0 1065 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1066 netif_carrier_off(netdev);
b2af9cb0 1067 netif_tx_disable(netdev);
9f5bc7f1 1068
d478af0d
SC		 1069 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1070 netxen_linkevent_request(adapter, 0);
1071
9f5bc7f1
DP		 1072 if (adapter->stop_port)
1073 adapter->stop_port(adapter);
1074
5cf4d323
DP		 1075 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1076 netxen_p3_free_mac_list(adapter);
1077
22b5794b
AKS		 1078 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1079
be339aee
DP		 1080 netxen_napi_disable(adapter);
1081
9f5bc7f1 1082 netxen_release_tx_buffers(adapter);
b2af9cb0 1083 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1084}
1085
6f771419
AKS		 1086/* Usage: During suspend and firmware recovery module */
1087
1088static inline void
1089netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1090{
1091 rtnl_lock();
1092 if (netif_running(netdev))
1093 __netxen_nic_down(adapter, netdev);
1094 rtnl_unlock();
1095
1096}
9f5bc7f1
DP		 1097
1098static int
1099netxen_nic_attach(struct netxen_adapter *adapter)
1100{
1101 struct net_device *netdev = adapter->netdev;
1102 struct pci_dev *pdev = adapter->pdev;
becf46a0 1103 int err, ring;
d8b100c5 1104 struct nx_host_rds_ring *rds_ring;
d877f1e3 1105 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1106
7042cd8f
AKS		 1107 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1108 return 0;
1109
9f5bc7f1 1110 err = netxen_init_firmware(adapter);
232e7d68
DP		 1111 if (err)
1112 return err;
1113
1114 err = netxen_napi_add(adapter, netdev);
1115 if (err)
1116 return err;
9f5bc7f1 1117
9f5bc7f1
DP		 1118 err = netxen_alloc_sw_resources(adapter);
1119 if (err) {
1120 printk(KERN_ERR "%s: Error in setting sw resources\n",
1121 netdev->name);
1122 return err;
1123 }
1124
9f5bc7f1
DP		 1125 err = netxen_alloc_hw_resources(adapter);
1126 if (err) {
1127 printk(KERN_ERR "%s: Error in setting hw resources\n",
1128 netdev->name);
1129 goto err_out_free_sw;
1130 }
1131
4f96b988 1132 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1133 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1134 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1135 crb_cmd_producer[adapter->portnum]);
1136 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1137 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1138
cb2107be
DP		 1139 tx_ring->producer = 0;
1140 tx_ring->sw_consumer = 0;
1141
1142 netxen_nic_update_cmd_producer(adapter, tx_ring);
1143 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1144 }
1145
d8b100c5
DP		 1146 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1147 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1148 netxen_post_rx_buffers(adapter, ring, rds_ring);
1149 }
9f5bc7f1
DP		 1150
1151 err = netxen_nic_request_irq(adapter);
1152 if (err) {
1153 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1154 netdev->name);
1155 goto err_out_free_rxbuf;
1156 }
1157
ca2ef330
DP		 1158 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1159 netxen_nic_init_coalesce_defaults(adapter);
1160
fa3ce355
NK		 1161 netxen_create_sysfs_entries(adapter);
1162
9f5bc7f1
DP		 1163 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1164 return 0;
1165
1166err_out_free_rxbuf:
1167 netxen_release_rx_buffers(adapter);
1168 netxen_free_hw_resources(adapter);
1169err_out_free_sw:
1170 netxen_free_sw_resources(adapter);
1171 return err;
1172}
1173
1174static void
1175netxen_nic_detach(struct netxen_adapter *adapter)
1176{
7042cd8f
AKS		 1177 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1178 return;
1179
fa3ce355
NK		 1180 netxen_remove_sysfs_entries(adapter);
1181
9f5bc7f1 1182 netxen_free_hw_resources(adapter);
cf981ffb 1183 netxen_release_rx_buffers(adapter);
be339aee 1184 netxen_nic_free_irq(adapter);
232e7d68 1185 netxen_napi_del(adapter);
9f5bc7f1
DP		 1186 netxen_free_sw_resources(adapter);
1187
1188 adapter->is_up = 0;
1189}
1190
7042cd8f
AKS		 1191int
1192netxen_nic_reset_context(struct netxen_adapter *adapter)
1193{
1194 int err = 0;
1195 struct net_device *netdev = adapter->netdev;
1196
6a581e93
DP		 1197 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1198 return -EBUSY;
1199
7042cd8f
AKS		 1200 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1201
6a581e93
DP		 1202 netif_device_detach(netdev);
1203
7042cd8f 1204 if (netif_running(netdev))
6f771419 1205 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1206
1207 netxen_nic_detach(adapter);
1208
6a581e93
DP		 1209 if (netif_running(netdev)) {
1210 err = netxen_nic_attach(adapter);
1211 if (!err)
6f771419 1212 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1213
6a581e93
DP		 1214 if (err)
1215 goto done;
1216 }
1217
1218 netif_device_attach(netdev);
7042cd8f 1219 }
6a581e93 1220
7042cd8f 1221done:
6a581e93 1222 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1223 return err;
1224}
1225
f17443f4
DP		 1226static int
1227netxen_setup_netdev(struct netxen_adapter *adapter,
1228 struct net_device *netdev)
1229{
1230 int err = 0;
1231 struct pci_dev *pdev = adapter->pdev;
1232
f17443f4
DP		 1233 adapter->mc_enabled = 0;
1234 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1235 adapter->max_mc_count = 38;
1236 else
1237 adapter->max_mc_count = 16;
1238
1239 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1240 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1241
1242 netxen_nic_change_mtu(netdev, netdev->mtu);
1243
1244 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1245
066413da
MM		 1246 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1247 NETIF_F_RXCSUM;
f17443f4 1248
066413da
MM		 1249 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1250 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1251
1252 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1253
1254 if (adapter->pci_using_dac) {
1255 netdev->features |= NETIF_F_HIGHDMA;
1256 netdev->vlan_features |= NETIF_F_HIGHDMA;
1257 }
1258
028afe71 1259 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
066413da 1260 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
028afe71 1261
1bb482f8 1262 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1263 netdev->hw_features |= NETIF_F_LRO;
1264
1265 netdev->features |= netdev->hw_features;
1bb482f8 1266
f17443f4
DP		 1267 netdev->irq = adapter->msix_entries[0].vector;
1268
74c520da 1269 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1270
1271 if (netxen_read_mac_addr(adapter))
1272 dev_warn(&pdev->dev, "failed to read mac addr\n");
1273
1274 netif_carrier_off(netdev);
f17443f4
DP		 1275
1276 err = register_netdev(netdev);
1277 if (err) {
1278 dev_err(&pdev->dev, "failed to register net device\n");
1279 return err;
1280 }
1281
1282 return 0;
1283}
1284
dce87b96 1285#ifdef CONFIG_PCIEAER
1286static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1287{
1288 struct pci_dev *pdev = adapter->pdev;
1289 struct pci_dev *root = pdev->bus->self;
1290 u32 aer_pos;
1291
1292 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1293 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1294 return;
1295
1296 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1297 return;
1298
1299 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1300 if (!aer_pos)
1301 return;
1302
1303 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1304}
1305#endif
1306
3d396eb1
AK		 1307static int __devinit
1308netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1309{
1310 struct net_device *netdev = NULL;
1311 struct netxen_adapter *adapter = NULL;
2956640d 1312 int i = 0, err;
3176ff3e 1313 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1314 uint8_t revision_id;
5a6f95e6 1315 u32 val;
3d396eb1 1316
688328c7
EB		 1317 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1318 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1319 "will not be enabled.\n",
c25c0b9b 1320 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1321 return -ENODEV;
1322 }
1323
3d396eb1
AK		 1324 if ((err = pci_enable_device(pdev)))
1325 return err;
2956640d 1326
3d396eb1
AK		 1327 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1328 err = -ENODEV;
1329 goto err_out_disable_pdev;
1330 }
1331
1332 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1333 goto err_out_disable_pdev;
1334
e87ad553
AKS		 1335 if (NX_IS_REVISION_P3(pdev->revision))
1336 pci_enable_pcie_error_reporting(pdev);
1337
3d396eb1 1338 pci_set_master(pdev);
3176ff3e
MT		 1339
1340 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1341 if(!netdev) {
f17443f4
DP		 1342 dev_err(&pdev->dev, "failed to allocate net_device\n");
1343 err = -ENOMEM;
3176ff3e
MT		 1344 goto err_out_free_res;
1345 }
1346
3176ff3e
MT		 1347 SET_NETDEV_DEV(netdev, &pdev->dev);
1348
4cf1653a 1349 adapter = netdev_priv(netdev);
2956640d
DP		 1350 adapter->netdev = netdev;
1351 adapter->pdev = pdev;
13ba9c77 1352 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1353
1354 revision_id = pdev->revision;
1355 adapter->ahw.revision_id = revision_id;
1356
f03b0ebd
DP		 1357 rwlock_init(&adapter->ahw.crb_lock);
1358 spin_lock_init(&adapter->ahw.mem_lock);
1359
d8b100c5 1360 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1361 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1362
97daee83
DP		 1363 err = netxen_setup_pci_map(adapter);
1364 if (err)
6c80b18d 1365 goto err_out_free_netdev;
3d396eb1 1366
2d1a3bbd 1367 /* This will be reset for mezz cards */
3176ff3e 1368 adapter->portnum = pci_func_id;
3176ff3e 1369
f17443f4
DP		 1370 err = netxen_nic_get_board_info(adapter);
1371 if (err) {
1372 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1373 goto err_out_iounmap;
1374 }
6c80b18d 1375
dce87b96 1376#ifdef CONFIG_PCIEAER
1377 netxen_mask_aer_correctable(adapter);
1378#endif
1379
13ba9c77 1380 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1381 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1382 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1383 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1384 if (pci_func_id >= 2)
13ba9c77 1385 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1386 break;
1387 default:
1388 break;
1389 }
13ba9c77 1390
e933d019
AKS		 1391 err = netxen_check_flash_fw_compatibility(adapter);
1392 if (err)
1393 goto err_out_iounmap;
1394
5a6f95e6
RB		 1395 if (adapter->portnum == 0) {
1396 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1397 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1398 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1399 adapter->need_fw_reset = 1;
1400 }
1401 }
1402
6a581e93 1403 err = netxen_start_firmware(adapter);
0b72e659 1404 if (err)
8f9b3f69 1405 goto err_out_decr_ref;
f17443f4 1406
3d396eb1 1407 /*
6c80b18d 1408 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1409 */
dcd56fdb 1410 adapter->physical_port = adapter->portnum;
4f96b988 1411 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1412 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1413 if (i != 0x55555555)
1414 adapter->physical_port = i;
1415 }
6c80b18d 1416
6a581e93 1417 netxen_nic_clear_stats(adapter);
2956640d 1418
97daee83 1419 netxen_setup_intr(adapter);
2956640d 1420
f17443f4 1421 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1422 if (err)
2956640d 1423 goto err_out_disable_msi;
6c80b18d
MT		 1424
1425 pci_set_drvdata(pdev, adapter);
3d396eb1 1426
6a581e93
DP		 1427 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1428
1e2d0059 1429 switch (adapter->ahw.port_type) {
2956640d
DP		 1430 case NETXEN_NIC_GBE:
1431 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1432 adapter->netdev->name);
1433 break;
1434 case NETXEN_NIC_XGBE:
1435 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1436 adapter->netdev->name);
1437 break;
3d396eb1 1438 }
3d396eb1 1439
70f9cf89
DP		 1440 netxen_create_diag_entries(adapter);
1441
2956640d
DP		 1442 return 0;
1443
1444err_out_disable_msi:
97daee83 1445 netxen_teardown_intr(adapter);
6c80b18d 1446
83ac51fa 1447 netxen_free_dummy_dma(adapter);
3d396eb1 1448
8f9b3f69 1449err_out_decr_ref:
6a581e93
DP		 1450 nx_decr_dev_ref_cnt(adapter);
1451
2956640d 1452err_out_iounmap:
97daee83 1453 netxen_cleanup_pci_map(adapter);
cb8011ad 1454
6c80b18d
MT		 1455err_out_free_netdev:
1456 free_netdev(netdev);
1457
1458err_out_free_res:
3d396eb1 1459 pci_release_regions(pdev);
6c80b18d
MT		 1460
1461err_out_disable_pdev:
2956640d 1462 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1463 pci_disable_device(pdev);
1464 return err;
1465}
1466
1467static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1468{
1469 struct netxen_adapter *adapter;
3176ff3e 1470 struct net_device *netdev;
3d396eb1 1471
6c80b18d 1472 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1473 if (adapter == NULL)
1474 return;
1475
6c80b18d
MT		 1476 netdev = adapter->netdev;
1477
6a581e93
DP		 1478 netxen_cancel_fw_work(adapter);
1479
96acb6eb
DP		 1480 unregister_netdev(netdev);
1481
e424fa9d
AKS		 1482 cancel_work_sync(&adapter->tx_timeout_task);
1483
7042cd8f 1484 netxen_nic_detach(adapter);
3d396eb1 1485
6a581e93
DP		 1486 nx_decr_dev_ref_cnt(adapter);
1487
439b454e 1488 if (adapter->portnum == 0)
83ac51fa 1489 netxen_free_dummy_dma(adapter);
96acb6eb 1490
6a581e93
DP		 1491 clear_bit(__NX_RESETTING, &adapter->state);
1492
97daee83 1493 netxen_teardown_intr(adapter);
3052246c 1494
70f9cf89
DP		 1495 netxen_remove_diag_entries(adapter);
1496
97daee83 1497 netxen_cleanup_pci_map(adapter);
595e3fb8 1498
f7185c71
DP		 1499 netxen_release_firmware(adapter);
1500
e87ad553
AKS		 1501 if (NX_IS_REVISION_P3(pdev->revision))
1502 pci_disable_pcie_error_reporting(pdev);
1503
595e3fb8 1504 pci_release_regions(pdev);
3052246c 1505 pci_disable_device(pdev);
595e3fb8
MT		 1506 pci_set_drvdata(pdev, NULL);
1507
6c80b18d 1508 free_netdev(netdev);
3d396eb1 1509}
e87ad553
AKS		 1510
1511static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1512{
0b72e659
DP		 1513 struct net_device *netdev = adapter->netdev;
1514
1515 netif_device_detach(netdev);
1516
6a581e93
DP		 1517 netxen_cancel_fw_work(adapter);
1518
0b72e659
DP		 1519 if (netif_running(netdev))
1520 netxen_nic_down(adapter, netdev);
1521
e424fa9d
AKS		 1522 cancel_work_sync(&adapter->tx_timeout_task);
1523
7042cd8f 1524 netxen_nic_detach(adapter);
0b72e659 1525
22b5794b
AKS		 1526 if (adapter->portnum == 0)
1527 netxen_free_dummy_dma(adapter);
1528
6a581e93
DP		 1529 nx_decr_dev_ref_cnt(adapter);
1530
1531 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1532}
0b72e659 1533
e87ad553 1534static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1535{
1536 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1537 struct net_device *netdev = adapter->netdev;
1538 int err;
1539
0b72e659
DP		 1540 err = pci_enable_device(pdev);
1541 if (err)
1542 return err;
1543
bc86fcba
AKS		 1544 pci_set_power_state(pdev, PCI_D0);
1545 pci_set_master(pdev);
1546 pci_restore_state(pdev);
1547
907fa120 1548 adapter->ahw.crb_win = -1;
47abe356 1549 adapter->ahw.ocm_win = -1;
0b72e659 1550
6a581e93 1551 err = netxen_start_firmware(adapter);
0b72e659
DP		 1552 if (err) {
1553 dev_err(&pdev->dev, "failed to start firmware\n");
1554 return err;
1555 }
1556
1557 if (netif_running(netdev)) {
1558 err = netxen_nic_attach(adapter);
1559 if (err)
6a581e93 1560 goto err_out;
0b72e659
DP		 1561
1562 err = netxen_nic_up(adapter, netdev);
1563 if (err)
6a581e93 1564 goto err_out_detach;
0b72e659 1565
d0725e4d 1566 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1567 }
1568
bc86fcba 1569 netif_device_attach(netdev);
6a581e93 1570 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1571 return 0;
6a581e93
DP		 1572
1573err_out_detach:
1574 netxen_nic_detach(adapter);
1575err_out:
1576 nx_decr_dev_ref_cnt(adapter);
1577 return err;
0b72e659 1578}
e87ad553
AKS		 1579
1580static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1581 pci_channel_state_t state)
1582{
1583 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1584
1585 if (state == pci_channel_io_perm_failure)
1586 return PCI_ERS_RESULT_DISCONNECT;
1587
1588 if (nx_dev_request_aer(adapter))
1589 return PCI_ERS_RESULT_RECOVERED;
1590
1591 netxen_nic_detach_func(adapter);
1592
1593 pci_disable_device(pdev);
1594
1595 return PCI_ERS_RESULT_NEED_RESET;
1596}
1597
1598static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1599{
1600 int err = 0;
1601
1602 err = netxen_nic_attach_func(pdev);
1603
1604 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1605}
1606
1607static void netxen_io_resume(struct pci_dev *pdev)
1608{
1609 pci_cleanup_aer_uncorrect_error_status(pdev);
1610}
1611
1612static void netxen_nic_shutdown(struct pci_dev *pdev)
1613{
1614 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1615
1616 netxen_nic_detach_func(adapter);
1617
1618 if (pci_save_state(pdev))
1619 return;
1620
1621 if (netxen_nic_wol_supported(adapter)) {
1622 pci_enable_wake(pdev, PCI_D3cold, 1);
1623 pci_enable_wake(pdev, PCI_D3hot, 1);
1624 }
1625
1626 pci_disable_device(pdev);
1627}
1628
1629#ifdef CONFIG_PM
1630static int
1631netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1632{
1633 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1634 int retval;
1635
1636 netxen_nic_detach_func(adapter);
1637
1638 retval = pci_save_state(pdev);
1639 if (retval)
1640 return retval;
1641
1642 if (netxen_nic_wol_supported(adapter)) {
1643 pci_enable_wake(pdev, PCI_D3cold, 1);
1644 pci_enable_wake(pdev, PCI_D3hot, 1);
1645 }
1646
1647 pci_disable_device(pdev);
1648 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1649
1650 return 0;
1651}
1652
1653static int
1654netxen_nic_resume(struct pci_dev *pdev)
1655{
1656 return netxen_nic_attach_func(pdev);
1657}
01542cd1 1658#endif
0b72e659 1659
3d396eb1
AK		 1660static int netxen_nic_open(struct net_device *netdev)
1661{
4cf1653a 1662 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1663 int err = 0;
3d396eb1 1664
dcd56fdb
DP		 1665 if (adapter->driver_mismatch)
1666 return -EIO;
1667
7042cd8f
AKS		 1668 err = netxen_nic_attach(adapter);
1669 if (err)
1670 return err;
2956640d 1671
6f771419 1672 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1673 if (err)
1674 goto err_out;
05aaa02d 1675
dcd56fdb 1676 netif_start_queue(netdev);
3d396eb1
AK		 1677
1678 return 0;
2956640d 1679
9f5bc7f1
DP		 1680err_out:
1681 netxen_nic_detach(adapter);
2956640d 1682 return err;
3d396eb1
AK		 1683}
1684
1685/*
1686 * netxen_nic_close - Disables a network interface entry point
1687 */
1688static int netxen_nic_close(struct net_device *netdev)
1689{
3176ff3e 1690 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1691
6f771419 1692 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1693 return 0;
1694}
1695
1bcfd790
DP		 1696static void
1697netxen_tso_check(struct net_device *netdev,
1698 struct nx_host_tx_ring *tx_ring,
1699 struct cmd_desc_type0 *first_desc,
1700 struct sk_buff *skb)
cd1f8160 1701{
391587c3 1702 u8 opcode = TX_ETHER_PKT;
cdff1036 1703 __be16 protocol = skb->protocol;
028afe71 1704 u16 flags = 0, vid = 0;
1bcfd790 1705 u32 producer;
028afe71 1706 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1707 struct cmd_desc_type0 *hwdesc;
028afe71 1708 struct vlan_ethhdr *vh;
cdff1036 1709
09640e63 1710 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1711
1712 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1713 protocol = vh->h_vlan_encapsulated_proto;
1714 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1715
1716 } else if (vlan_tx_tag_present(skb)) {
1717
1718 flags = FLAGS_VLAN_OOB;
1719 vid = vlan_tx_tag_get(skb);
1720 netxen_set_tx_vlan_tci(first_desc, vid);
1721 vlan_oob = 1;
cdff1036 1722 }
cd1f8160 1723
391587c3
DP		 1724 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1725 skb_shinfo(skb)->gso_size > 0) {
1726
1bcfd790
DP		 1727 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1728
1729 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1730 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1731 if (vlan_oob) {
1732 first_desc->total_hdr_length += VLAN_HLEN;
1733 first_desc->tcp_hdr_offset = VLAN_HLEN;
1734 first_desc->ip_hdr_offset = VLAN_HLEN;
1735 /* Only in case of TSO on vlan device */
1736 flags |= FLAGS_VLAN_TAGGED;
1737 }
391587c3 1738
09640e63 1739 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1740 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1741 tso = 1;
cd1f8160
DP		 1742
1743 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1744 u8 l4proto;
1745
09640e63 1746 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1747 l4proto = ip_hdr(skb)->protocol;
1748
1749 if (l4proto == IPPROTO_TCP)
1750 opcode = TX_TCP_PKT;
1751 else if(l4proto == IPPROTO_UDP)
1752 opcode = TX_UDP_PKT;
09640e63 1753 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1754 l4proto = ipv6_hdr(skb)->nexthdr;
1755
1756 if (l4proto == IPPROTO_TCP)
1757 opcode = TX_TCPV6_PKT;
1758 else if(l4proto == IPPROTO_UDP)
1759 opcode = TX_UDPV6_PKT;
1760 }
cd1f8160 1761 }
028afe71
DP		 1762
1763 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1764 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1765 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1766
1767 if (!tso)
1768 return;
1769
1770 /* For LSO, we need to copy the MAC/IP/TCP headers into
1771 * the descriptor ring
1772 */
1773 producer = tx_ring->producer;
1774 copied = 0;
1775 offset = 2;
1776
028afe71
DP		 1777 if (vlan_oob) {
1778 /* Create a TSO vlan header template for firmware */
1779
1780 hwdesc = &tx_ring->desc_head[producer];
1781 tx_ring->cmd_buf_arr[producer].skb = NULL;
1782
1783 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1784 hdr_len + VLAN_HLEN);
1785
1786 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1787 skb_copy_from_linear_data(skb, vh, 12);
1788 vh->h_vlan_proto = htons(ETH_P_8021Q);
1789 vh->h_vlan_TCI = htons(vid);
1790 skb_copy_from_linear_data_offset(skb, 12,
1791 (char *)vh + 16, copy_len - 16);
1792
545eb370 1793 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1794 offset = 0;
1795
1796 producer = get_next_index(producer, tx_ring->num_desc);
1797 }
1798
1bcfd790
DP		 1799 while (copied < hdr_len) {
1800
1801 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1802 (hdr_len - copied));
1803
1804 hwdesc = &tx_ring->desc_head[producer];
1805 tx_ring->cmd_buf_arr[producer].skb = NULL;
1806
1807 skb_copy_from_linear_data_offset(skb, copied,
1808 (char *)hwdesc + offset, copy_len);
1809
1810 copied += copy_len;
1811 offset = 0;
1812
1813 producer = get_next_index(producer, tx_ring->num_desc);
1814 }
1815
1816 tx_ring->producer = producer;
1817 barrier();
cd1f8160
DP		 1818}
1819
ce644ed4
DP		 1820static int
1821netxen_map_tx_skb(struct pci_dev *pdev,
1822 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1823{
ce644ed4
DP		 1824 struct netxen_skb_frag *nf;
1825 struct skb_frag_struct *frag;
1826 int i, nr_frags;
1827 dma_addr_t map;
1828
1829 nr_frags = skb_shinfo(skb)->nr_frags;
1830 nf = &pbuf->frag_array[0];
1831
1832 map = pci_map_single(pdev, skb->data,
1833 skb_headlen(skb), PCI_DMA_TODEVICE);
1834 if (pci_dma_mapping_error(pdev, map))
1835 goto out_err;
6f703406 1836
ce644ed4
DP		 1837 nf->dma = map;
1838 nf->length = skb_headlen(skb);
1839
1840 for (i = 0; i < nr_frags; i++) {
1841 frag = &skb_shinfo(skb)->frags[i];
1842 nf = &pbuf->frag_array[i+1];
1843
1844 map = pci_map_page(pdev, frag->page, frag->page_offset,
1845 frag->size, PCI_DMA_TODEVICE);
1846 if (pci_dma_mapping_error(pdev, map))
1847 goto unwind;
1848
1849 nf->dma = map;
1850 nf->length = frag->size;
1851 }
1852
1853 return 0;
6f703406 1854
ce644ed4 1855unwind:
cf503e8f
DP		 1856 while (--i >= 0) {
1857 nf = &pbuf->frag_array[i+1];
ce644ed4 1858 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1859 }
ce644ed4
DP		 1860
1861 nf = &pbuf->frag_array[0];
1862 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1863
1864out_err:
1865 return -ENOMEM;
6f703406
DP		 1866}
1867
d32cc3d2
DP		 1868static inline void
1869netxen_clear_cmddesc(u64 *desc)
1870{
1bcfd790
DP		 1871 desc[0] = 0ULL;
1872 desc[2] = 0ULL;
d32cc3d2
DP		 1873}
1874
61357325 1875static netdev_tx_t
d32cc3d2 1876netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1877{
3176ff3e 1878 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1879 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1880 struct netxen_cmd_buffer *pbuf;
3d396eb1 1881 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1882 struct cmd_desc_type0 *hwdesc, *first_desc;
1883 struct pci_dev *pdev;
391587c3 1884 int i, k;
c968bdf6 1885 int delta = 0;
1886 struct skb_frag_struct *frag;
3d396eb1 1887
cb2107be 1888 u32 producer;
ce644ed4 1889 int frag_count, no_of_desc;
d877f1e3 1890 u32 num_txd = tx_ring->num_desc;
3d396eb1 1891
3d396eb1
AK		 1892 frag_count = skb_shinfo(skb)->nr_frags + 1;
1893
c968bdf6 1894 /* 14 frags supported for normal packet and
1895 * 32 frags supported for TSO packet
1896 */
1897 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
1898
1899 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
1900 frag = &skb_shinfo(skb)->frags[i];
1901 delta += frag->size;
1902 }
1903
1904 if (!__pskb_pull_tail(skb, delta))
1905 goto drop_packet;
1906
1907 frag_count = 1 + skb_shinfo(skb)->nr_frags;
1908 }
d877f1e3 1909 /* 4 fragments per cmd des */
3d396eb1 1910 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1911
7a9905e6 1912 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 1913 netif_stop_queue(netdev);
7a9905e6
RB		 1914 smp_mb();
1915 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1916 netif_start_queue(netdev);
1917 else
1918 return NETDEV_TX_BUSY;
53a01e00 1919 }
3d396eb1 1920
cb2107be 1921 producer = tx_ring->producer;
ce644ed4 1922 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1923
1bcfd790 1924 pdev = adapter->pdev;
391587c3 1925
ce644ed4 1926 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1927 goto drop_packet;
391587c3 1928
3d396eb1 1929 pbuf->skb = skb;
3d396eb1 1930 pbuf->frag_count = frag_count;
6f703406 1931
1bcfd790
DP		 1932 first_desc = hwdesc = &tx_ring->desc_head[producer];
1933 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1934
ce644ed4
DP		 1935 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1936 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1937
ce644ed4 1938 for (i = 0; i < frag_count; i++) {
3d396eb1 1939
ce644ed4
DP		 1940 k = i % 4;
1941
1942 if ((k == 0) && (i > 0)) {
1943 /* move to next desc.*/
ba53e6b4 1944 producer = get_next_index(producer, num_txd);
d877f1e3 1945 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1946 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1947 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1948 }
3d396eb1 1949
ce644ed4 1950 buffrag = &pbuf->frag_array[i];
3d396eb1 1951
ce644ed4 1952 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1953 switch (k) {
1954 case 0:
ce644ed4 1955 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1956 break;
1957 case 1:
ce644ed4 1958 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1959 break;
1960 case 2:
ce644ed4 1961 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1962 break;
1963 case 3:
ce644ed4 1964 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1965 break;
1966 }
3d396eb1 1967 }
ce644ed4 1968
1bcfd790 1969 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1970
1bcfd790 1971 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1972
1bcfd790 1973 adapter->stats.txbytes += skb->len;
ba53e6b4 1974 adapter->stats.xmitcalled++;
3d396eb1 1975
c82b9d7f
ED		 1976 netxen_nic_update_cmd_producer(adapter, tx_ring);
1977
3d396eb1 1978 return NETDEV_TX_OK;
6f703406
DP		 1979
1980drop_packet:
1981 adapter->stats.txdropped++;
1982 dev_kfree_skb_any(skb);
1983 return NETDEV_TX_OK;
3d396eb1
AK		 1984}
1985
a97342f9
DP		 1986static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1987{
1988 struct net_device *netdev = adapter->netdev;
1989 uint32_t temp, temp_state, temp_val;
1990 int rv = 0;
1991
f98a9f69 1992 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1993
1994 temp_state = nx_get_temp_state(temp);
1995 temp_val = nx_get_temp_val(temp);
1996
1997 if (temp_state == NX_TEMP_PANIC) {
1998 printk(KERN_ALERT
1999 "%s: Device temperature %d degrees C exceeds"
2000 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2001 netdev->name, temp_val);
a97342f9
DP		 2002 rv = 1;
2003 } else if (temp_state == NX_TEMP_WARN) {
2004 if (adapter->temp == NX_TEMP_NORMAL) {
2005 printk(KERN_ALERT
2006 "%s: Device temperature %d degrees C "
2007 "exceeds operating range."
2008 " Immediate action needed.\n",
e4135c2d 2009 netdev->name, temp_val);
a97342f9
DP		 2010 }
2011 } else {
2012 if (adapter->temp == NX_TEMP_WARN) {
2013 printk(KERN_INFO
2014 "%s: Device temperature is now %d degrees C"
e4135c2d 2015 " in normal range.\n", netdev->name,
a97342f9
DP		 2016 temp_val);
2017 }
2018 }
2019 adapter->temp = temp_state;
2020 return rv;
2021}
2022
3bf26ce3 2023void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2024{
2025 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2026
2027 if (adapter->ahw.linkup && !linkup) {
2028 printk(KERN_INFO "%s: %s NIC Link is down\n",
2029 netxen_nic_driver_name, netdev->name);
2030 adapter->ahw.linkup = 0;
2031 if (netif_running(netdev)) {
2032 netif_carrier_off(netdev);
2033 netif_stop_queue(netdev);
2034 }
e424fa9d 2035 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2036 } else if (!adapter->ahw.linkup && linkup) {
2037 printk(KERN_INFO "%s: %s NIC Link is up\n",
2038 netxen_nic_driver_name, netdev->name);
2039 adapter->ahw.linkup = 1;
2040 if (netif_running(netdev)) {
2041 netif_carrier_on(netdev);
2042 netif_wake_queue(netdev);
2043 }
e424fa9d 2044 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2045 }
2046}
2047
3bf26ce3
DP		 2048static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2049{
2050 u32 val, port, linkup;
2051
2052 port = adapter->physical_port;
2053
2054 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2055 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2056 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2057 linkup = (val == XG_LINK_UP_P3);
2058 } else {
f98a9f69 2059 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2060 val = (val >> port*8) & 0xff;
2061 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2062 }
2063
2064 netxen_advert_link_change(adapter, linkup);
2065}
2066
3d396eb1
AK		 2067static void netxen_tx_timeout(struct net_device *netdev)
2068{
e424fa9d 2069 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2070
6a581e93
DP		 2071 if (test_bit(__NX_RESETTING, &adapter->state))
2072 return;
2073
f17443f4 2074 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2075 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2076}
2077
74c520da 2078static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2079{
4790654c 2080 struct netxen_adapter *adapter =
3176ff3e 2081 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2082
b2af9cb0
DP		 2083 if (!netif_running(adapter->netdev))
2084 return;
2085
74c520da 2086 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2087 return;
2088
74c520da
AKS		 2089 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2090 goto request_reset;
2091
16d884bd 2092 rtnl_lock();
74c520da
AKS		 2093 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2094 /* try to scrub interrupt */
2095 netxen_napi_disable(adapter);
ba53e6b4 2096
74c520da
AKS		 2097 netxen_napi_enable(adapter);
2098
2099 netif_wake_queue(adapter->netdev);
2100
a598ae17 2101 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2102 } else {
a598ae17 2103 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2104 if (netxen_nic_reset_context(adapter)) {
2105 rtnl_unlock();
2106 goto request_reset;
74c520da 2107 }
74c520da 2108 }
16d884bd
AKS		 2109 adapter->netdev->trans_start = jiffies;
2110 rtnl_unlock();
2111 return;
74c520da
AKS		 2112
2113request_reset:
2114 adapter->need_fw_reset = 1;
ff8a306d 2115 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2116}
2117
47fd428c 2118static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2119 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2120{
2121 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2122
1bb482f8 2123 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2124 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2125 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2126 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2127 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2128 stats->tx_dropped = adapter->stats.txdropped;
2129
2130 return stats;
2131}
2132
e4c93c81 2133static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2134{
d8b100c5
DP		 2135 struct nx_host_sds_ring *sds_ring = data;
2136 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2137 u32 status = 0;
2138
195c5f98 2139 status = readl(adapter->isr_int_vec);
d71e1be8 2140
195c5f98 2141 if (!(status & adapter->int_vec_bit))
05aaa02d 2142 return IRQ_NONE;
e01872af 2143
195c5f98 2144 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2145 /* check interrupt state machine, to be sure */
195c5f98 2146 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2147 if (!ISR_LEGACY_INT_TRIGGERED(status))
2148 return IRQ_NONE;
2149
092bc571
DP		 2150 } else {
2151 unsigned long our_int = 0;
d71e1be8 2152
195c5f98 2153 our_int = readl(adapter->crb_int_state_reg);
092bc571 2154
d71e1be8 2155 /* not our interrupt */
092bc571 2156 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2157 return IRQ_NONE;
2158
092bc571 2159 /* claim interrupt */
195c5f98 2160 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2161
195c5f98 2162 /* clear interrupt */
d8b100c5 2163 netxen_nic_disable_int(sds_ring);
195c5f98 2164 }
092bc571 2165
195c5f98 2166 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2167 /* read twice to ensure write is flushed */
195c5f98
AKS		 2168 readl(adapter->isr_int_vec);
2169 readl(adapter->isr_int_vec);
092bc571 2170
d8b100c5 2171 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2172
2173 return IRQ_HANDLED;
2174}
2175
e4c93c81 2176static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2177{
d8b100c5
DP		 2178 struct nx_host_sds_ring *sds_ring = data;
2179 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2180
092bc571 2181 /* clear interrupt */
195c5f98 2182 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2183
d8b100c5 2184 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2185 return IRQ_HANDLED;
2186}
2187
b3df68f8
DP		 2188static irqreturn_t netxen_msix_intr(int irq, void *data)
2189{
d8b100c5 2190 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2191
d8b100c5 2192 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2193 return IRQ_HANDLED;
2194}
2195
bea3348e 2196static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2197{
d8b100c5
DP		 2198 struct nx_host_sds_ring *sds_ring =
2199 container_of(napi, struct nx_host_sds_ring, napi);
2200
2201 struct netxen_adapter *adapter = sds_ring->adapter;
2202
05aaa02d 2203 int tx_complete;
bea3348e 2204 int work_done;
3d396eb1 2205
05aaa02d 2206 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2207
d8b100c5 2208 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2209
05aaa02d 2210 if ((work_done < budget) && tx_complete) {
d8b100c5 2211 napi_complete(&sds_ring->napi);
f2251f66 2212 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2213 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2214 }
2215
bea3348e 2216 return work_done;
3d396eb1
AK		 2217}
2218
2219#ifdef CONFIG_NET_POLL_CONTROLLER
2220static void netxen_nic_poll_controller(struct net_device *netdev)
2221{
7b589a35
YL		 2222 int ring;
2223 struct nx_host_sds_ring *sds_ring;
3176ff3e 2224 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2225 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2226
3d396eb1 2227 disable_irq(adapter->irq);
7b589a35
YL		 2228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2229 sds_ring = &recv_ctx->sds_rings[ring];
2230 netxen_intr(adapter->irq, sds_ring);
2231 }
3d396eb1
AK		 2232 enable_irq(adapter->irq);
2233}
2234#endif
3d396eb1 2235
6a581e93
DP		 2236static int
2237nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2238{
2239 int count;
2240 if (netxen_api_lock(adapter))
2241 return -EIO;
2242
2243 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2244
2245 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2246
2247 netxen_api_unlock(adapter);
2248 return count;
2249}
2250
2251static int
2252nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2253{
2254 int count;
2255 if (netxen_api_lock(adapter))
2256 return -EIO;
2257
2258 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2259 WARN_ON(count == 0);
2260
2261 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2262
2263 if (count == 0)
2264 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2265
2266 netxen_api_unlock(adapter);
2267 return count;
2268}
2269
e87ad553
AKS		 2270static int
2271nx_dev_request_aer(struct netxen_adapter *adapter)
2272{
2273 u32 state;
2274 int ret = -EINVAL;
2275
2276 if (netxen_api_lock(adapter))
2277 return ret;
2278
2279 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2280
2281 if (state == NX_DEV_NEED_AER)
2282 ret = 0;
2283 else if (state == NX_DEV_READY) {
2284 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2285 ret = 0;
2286 }
2287
2288 netxen_api_unlock(adapter);
2289 return ret;
2290}
2291
2292static int
74c520da
AKS		 2293nx_dev_request_reset(struct netxen_adapter *adapter)
2294{
2295 u32 state;
e87ad553 2296 int ret = -EINVAL;
74c520da
AKS		 2297
2298 if (netxen_api_lock(adapter))
e87ad553 2299 return ret;
74c520da
AKS		 2300
2301 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2302
e87ad553
AKS		 2303 if (state == NX_DEV_NEED_RESET)
2304 ret = 0;
2305 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2306 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
e87ad553
AKS		 2307 ret = 0;
2308 }
74c520da
AKS		 2309
2310 netxen_api_unlock(adapter);
e87ad553
AKS		 2311
2312 return ret;
74c520da
AKS		 2313}
2314
6a581e93
DP		 2315static int
2316netxen_can_start_firmware(struct netxen_adapter *adapter)
2317{
2318 int count;
2319 int can_start = 0;
2320
2321 if (netxen_api_lock(adapter))
2322 return 0;
2323
2324 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2325
2326 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2327 count = 0;
2328
2329 if (count == 0) {
2330 can_start = 1;
2331 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2332 }
2333
2334 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2335
2336 netxen_api_unlock(adapter);
2337
2338 return can_start;
2339}
2340
2341static void
2342netxen_schedule_work(struct netxen_adapter *adapter,
2343 work_func_t func, int delay)
2344{
2345 INIT_DELAYED_WORK(&adapter->fw_work, func);
2346 schedule_delayed_work(&adapter->fw_work, delay);
2347}
2348
2349static void
2350netxen_cancel_fw_work(struct netxen_adapter *adapter)
2351{
2352 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2353 msleep(10);
2354
2355 cancel_delayed_work_sync(&adapter->fw_work);
2356}
2357
2358static void
2359netxen_attach_work(struct work_struct *work)
2360{
2361 struct netxen_adapter *adapter = container_of(work,
2362 struct netxen_adapter, fw_work.work);
2363 struct net_device *netdev = adapter->netdev;
2364 int err = 0;
2365
2366 if (netif_running(netdev)) {
2367 err = netxen_nic_attach(adapter);
2368 if (err)
2369 goto done;
2370
2371 err = netxen_nic_up(adapter, netdev);
2372 if (err) {
2373 netxen_nic_detach(adapter);
2374 goto done;
2375 }
2376
d0725e4d 2377 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2378 }
2379
2380 netif_device_attach(netdev);
2381
2382done:
2383 adapter->fw_fail_cnt = 0;
2384 clear_bit(__NX_RESETTING, &adapter->state);
2385 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2386}
2387
2388static void
2389netxen_fwinit_work(struct work_struct *work)
2390{
2391 struct netxen_adapter *adapter = container_of(work,
2392 struct netxen_adapter, fw_work.work);
2393 int dev_state;
2394
2395 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2396
2397 switch (dev_state) {
2398 case NX_DEV_COLD:
2399 case NX_DEV_READY:
74c520da
AKS		 2400 if (!netxen_start_firmware(adapter)) {
2401 netxen_schedule_work(adapter, netxen_attach_work, 0);
2402 return;
2403 }
2404 break;
6a581e93 2405
6b50ea15 2406 case NX_DEV_NEED_RESET:
6a581e93
DP		 2407 case NX_DEV_INITALIZING:
2408 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2409 netxen_schedule_work(adapter,
2410 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2411 return;
2412 }
6a581e93
DP		 2413
2414 case NX_DEV_FAILED:
2415 default:
8f9b3f69 2416 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2417 break;
2418 }
2419
6a581e93
DP		 2420 clear_bit(__NX_RESETTING, &adapter->state);
2421}
2422
2423static void
2424netxen_detach_work(struct work_struct *work)
2425{
2426 struct netxen_adapter *adapter = container_of(work,
2427 struct netxen_adapter, fw_work.work);
2428 struct net_device *netdev = adapter->netdev;
2429 int ref_cnt, delay;
2430 u32 status;
2431
2432 netif_device_detach(netdev);
2433
6f771419 2434 netxen_nic_down(adapter, netdev);
6a581e93 2435
e15eec28 2436 rtnl_lock();
6a581e93 2437 netxen_nic_detach(adapter);
e15eec28 2438 rtnl_unlock();
6a581e93
DP		 2439
2440 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2441
6a581e93 2442 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2443 goto err_ret;
6a581e93
DP		 2444
2445 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2446 goto err_ret;
2447
2448 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2449
6b50ea15
AKS		 2450 if (ref_cnt == -EIO)
2451 goto err_ret;
2452
6a581e93
DP		 2453 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2454
2455 adapter->fw_wait_cnt = 0;
2456 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2457
2458 return;
2459
2460err_ret:
2461 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2462}
2463
2464static int
2465netxen_check_health(struct netxen_adapter *adapter)
2466{
2467 u32 state, heartbit;
2468 struct net_device *netdev = adapter->netdev;
2469
e87ad553
AKS		 2470 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2471 if (state == NX_DEV_NEED_AER)
2472 return 0;
2473
6a581e93
DP		 2474 if (netxen_nic_check_temp(adapter))
2475 goto detach;
2476
74c520da 2477 if (adapter->need_fw_reset) {
e87ad553
AKS		 2478 if (nx_dev_request_reset(adapter))
2479 return 0;
74c520da
AKS		 2480 goto detach;
2481 }
2482
e87ad553
AKS		 2483 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2484 * 1. Tx timeout 2. Fw hang
2485 * Send request to destroy context in case of tx timeout only
2486 * and doesn't required in case of Fw hang
2487 */
6a808c6c
AKS		 2488 if (state == NX_DEV_NEED_RESET) {
2489 adapter->need_fw_reset = 1;
e87ad553
AKS		 2490 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2491 goto detach;
6a808c6c 2492 }
6a581e93
DP		 2493
2494 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2495 return 0;
2496
2497 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2498 if (heartbit != adapter->heartbit) {
2499 adapter->heartbit = heartbit;
2500 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2501 if (adapter->need_fw_reset)
2502 goto detach;
6a581e93
DP		 2503 return 0;
2504 }
2505
2506 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2507 return 0;
2508
e87ad553
AKS		 2509 if (nx_dev_request_reset(adapter))
2510 return 0;
2511
6a581e93
DP		 2512 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2513
2514 dev_info(&netdev->dev, "firmware hang detected\n");
2515
2516detach:
caa2dd53
NK		 2517 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2518 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2519 netxen_schedule_work(adapter, netxen_detach_work, 0);
2520 return 1;
2521}
2522
2523static void
2524netxen_fw_poll_work(struct work_struct *work)
2525{
2526 struct netxen_adapter *adapter = container_of(work,
2527 struct netxen_adapter, fw_work.work);
2528
2529 if (test_bit(__NX_RESETTING, &adapter->state))
2530 goto reschedule;
2531
2532 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2533 if (!adapter->has_link_events) {
2534
2535 netxen_nic_handle_phy_intr(adapter);
2536
2537 if (adapter->link_changed)
2538 netxen_nic_set_link_parameters(adapter);
2539 }
2540 }
2541
2542 if (netxen_check_health(adapter))
2543 return;
2544
2545reschedule:
2546 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2547}
2548
fa3ce355
NK		 2549static ssize_t
2550netxen_store_bridged_mode(struct device *dev,
2551 struct device_attribute *attr, const char *buf, size_t len)
2552{
2553 struct net_device *net = to_net_dev(dev);
2554 struct netxen_adapter *adapter = netdev_priv(net);
2555 unsigned long new;
2556 int ret = -EINVAL;
2557
2558 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2559 goto err_out;
2560
2561 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2562 goto err_out;
2563
2564 if (strict_strtoul(buf, 2, &new))
2565 goto err_out;
2566
2567 if (!netxen_config_bridged_mode(adapter, !!new))
2568 ret = len;
2569
2570err_out:
2571 return ret;
2572}
2573
2574static ssize_t
2575netxen_show_bridged_mode(struct device *dev,
2576 struct device_attribute *attr, char *buf)
2577{
2578 struct net_device *net = to_net_dev(dev);
2579 struct netxen_adapter *adapter;
2580 int bridged_mode = 0;
2581
2582 adapter = netdev_priv(net);
2583
2584 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2585 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2586
2587 return sprintf(buf, "%d\n", bridged_mode);
2588}
2589
2590static struct device_attribute dev_attr_bridged_mode = {
2591 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2592 .show = netxen_show_bridged_mode,
2593 .store = netxen_store_bridged_mode,
2594};
2595
70f9cf89
DP		 2596static ssize_t
2597netxen_store_diag_mode(struct device *dev,
2598 struct device_attribute *attr, const char *buf, size_t len)
2599{
2600 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2601 unsigned long new;
2602
2603 if (strict_strtoul(buf, 2, &new))
2604 return -EINVAL;
2605
2606 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2607 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2608
2609 return len;
2610}
2611
2612static ssize_t
2613netxen_show_diag_mode(struct device *dev,
2614 struct device_attribute *attr, char *buf)
2615{
2616 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2617
2618 return sprintf(buf, "%d\n",
2619 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2620}
2621
2622static struct device_attribute dev_attr_diag_mode = {
2623 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2624 .show = netxen_show_diag_mode,
2625 .store = netxen_store_diag_mode,
2626};
2627
2628static int
2629netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2630 loff_t offset, size_t size)
2631{
0b9715e6
AKS		 2632 size_t crb_size = 4;
2633
70f9cf89
DP		 2634 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2635 return -EIO;
2636
0b9715e6
AKS		 2637 if (offset < NETXEN_PCI_CRBSPACE) {
2638 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2639 return -EINVAL;
70f9cf89 2640
0b9715e6
AKS		 2641 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2642 NETXEN_PCI_CAMQM_2M_END))
2643 crb_size = 8;
2644 else
2645 return -EINVAL;
2646 }
2647
2648 if ((size != crb_size) || (offset & (crb_size-1)))
2649 return -EINVAL;
70f9cf89
DP		 2650
2651 return 0;
2652}
2653
2654static ssize_t
2c3c8bea
CW		 2655netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2656 struct bin_attribute *attr,
70f9cf89
DP		 2657 char *buf, loff_t offset, size_t size)
2658{
2659 struct device *dev = container_of(kobj, struct device, kobj);
2660 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2661 u32 data;
0b9715e6 2662 u64 qmdata;
70f9cf89
DP		 2663 int ret;
2664
2665 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2666 if (ret != 0)
2667 return ret;
2668
0b9715e6
AKS		 2669 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2670 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2671 NETXEN_PCI_CAMQM_2M_END)) {
2672 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2673 memcpy(buf, &qmdata, size);
2674 } else {
2675 data = NXRD32(adapter, offset);
2676 memcpy(buf, &data, size);
2677 }
2678
70f9cf89
DP		 2679 return size;
2680}
2681
2682static ssize_t
2c3c8bea
CW		 2683netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2684 struct bin_attribute *attr,
70f9cf89
DP		 2685 char *buf, loff_t offset, size_t size)
2686{
2687 struct device *dev = container_of(kobj, struct device, kobj);
2688 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2689 u32 data;
0b9715e6 2690 u64 qmdata;
70f9cf89
DP		 2691 int ret;
2692
2693 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2694 if (ret != 0)
2695 return ret;
2696
0b9715e6
AKS		 2697 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2698 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2699 NETXEN_PCI_CAMQM_2M_END)) {
2700 memcpy(&qmdata, buf, size);
2701 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2702 } else {
2703 memcpy(&data, buf, size);
2704 NXWR32(adapter, offset, data);
2705 }
2706
70f9cf89
DP		 2707 return size;
2708}
2709
2710static int
2711netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2712 loff_t offset, size_t size)
2713{
2714 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2715 return -EIO;
2716
2717 if ((size != 8) || (offset & 0x7))
2718 return -EIO;
2719
2720 return 0;
2721}
2722
2723static ssize_t
2c3c8bea
CW		 2724netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2725 struct bin_attribute *attr,
70f9cf89
DP		 2726 char *buf, loff_t offset, size_t size)
2727{
2728 struct device *dev = container_of(kobj, struct device, kobj);
2729 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2730 u64 data;
2731 int ret;
2732
2733 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2734 if (ret != 0)
2735 return ret;
2736
2737 if (adapter->pci_mem_read(adapter, offset, &data))
2738 return -EIO;
2739
2740 memcpy(buf, &data, size);
2741
2742 return size;
2743}
2744
2c3c8bea 2745static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2746 struct bin_attribute *attr, char *buf,
2747 loff_t offset, size_t size)
2748{
2749 struct device *dev = container_of(kobj, struct device, kobj);
2750 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2751 u64 data;
2752 int ret;
2753
2754 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2755 if (ret != 0)
2756 return ret;
2757
2758 memcpy(&data, buf, size);
2759
2760 if (adapter->pci_mem_write(adapter, offset, data))
2761 return -EIO;
2762
2763 return size;
2764}
2765
2766
2767static struct bin_attribute bin_attr_crb = {
2768 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2769 .size = 0,
2770 .read = netxen_sysfs_read_crb,
2771 .write = netxen_sysfs_write_crb,
2772};
2773
2774static struct bin_attribute bin_attr_mem = {
2775 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2776 .size = 0,
2777 .read = netxen_sysfs_read_mem,
2778 .write = netxen_sysfs_write_mem,
2779};
2780
caa2dd53 2781
fa3ce355
NK		 2782static void
2783netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2784{
2785 struct net_device *netdev = adapter->netdev;
2786 struct device *dev = &netdev->dev;
2787
2788 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2789 /* bridged_mode control */
2790 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2791 dev_warn(&netdev->dev,
2792 "failed to create bridged_mode sysfs entry\n");
2793 }
2794 }
2795}
2796
2797static void
2798netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2799{
2800 struct net_device *netdev = adapter->netdev;
2801 struct device *dev = &netdev->dev;
2802
2803 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2804 device_remove_file(dev, &dev_attr_bridged_mode);
2805}
2806
70f9cf89
DP		 2807static void
2808netxen_create_diag_entries(struct netxen_adapter *adapter)
2809{
2810 struct pci_dev *pdev = adapter->pdev;
2811 struct device *dev;
2812
2813 dev = &pdev->dev;
2814 if (device_create_file(dev, &dev_attr_diag_mode))
2815 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2816 if (device_create_bin_file(dev, &bin_attr_crb))
2817 dev_info(dev, "failed to create crb sysfs entry\n");
2818 if (device_create_bin_file(dev, &bin_attr_mem))
2819 dev_info(dev, "failed to create mem sysfs entry\n");
2820}
2821
2822
2823static void
2824netxen_remove_diag_entries(struct netxen_adapter *adapter)
2825{
2826 struct pci_dev *pdev = adapter->pdev;
2827 struct device *dev = &pdev->dev;
2828
2829 device_remove_file(dev, &dev_attr_diag_mode);
2830 device_remove_bin_file(dev, &bin_attr_crb);
2831 device_remove_bin_file(dev, &bin_attr_mem);
2832}
2833
044824d9
DP		 2834#ifdef CONFIG_INET
2835
6598b169
DP		 2836#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2837
2838static int
2839netxen_destip_supported(struct netxen_adapter *adapter)
2840{
2841 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2842 return 0;
2843
2844 if (adapter->ahw.cut_through)
2845 return 0;
2846
2847 return 1;
2848}
2849
d0725e4d
AKS		 2850static void
2851netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2852{
2853 struct in_device *indev;
2854 struct netxen_adapter *adapter = netdev_priv(dev);
2855
3db76755 2856 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2857 return;
2858
2859 indev = in_dev_get(dev);
2860 if (!indev)
2861 return;
2862
2863 for_ifa(indev) {
2864 switch (event) {
2865 case NETDEV_UP:
2866 netxen_config_ipaddr(adapter,
2867 ifa->ifa_address, NX_IP_UP);
2868 break;
2869 case NETDEV_DOWN:
2870 netxen_config_ipaddr(adapter,
2871 ifa->ifa_address, NX_IP_DOWN);
2872 break;
2873 default:
2874 break;
2875 }
2876 } endfor_ifa(indev);
2877
2878 in_dev_put(indev);
d0725e4d
AKS		 2879}
2880
6598b169
DP		 2881static int netxen_netdev_event(struct notifier_block *this,
2882 unsigned long event, void *ptr)
2883{
2884 struct netxen_adapter *adapter;
2885 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2886
2887recheck:
2888 if (dev == NULL)
2889 goto done;
2890
2891 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2892 dev = vlan_dev_real_dev(dev);
2893 goto recheck;
2894 }
2895
2896 if (!is_netxen_netdev(dev))
2897 goto done;
2898
2899 adapter = netdev_priv(dev);
2900
d0725e4d 2901 if (!adapter)
6598b169
DP		 2902 goto done;
2903
2904 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2905 goto done;
2906
d0725e4d 2907 netxen_config_indev_addr(dev, event);
6598b169
DP		 2908done:
2909 return NOTIFY_DONE;
2910}
2911
2912static int
2913netxen_inetaddr_event(struct notifier_block *this,
2914 unsigned long event, void *ptr)
2915{
2916 struct netxen_adapter *adapter;
2917 struct net_device *dev;
2918
2919 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2920
2921 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2922
2923recheck:
2924 if (dev == NULL || !netif_running(dev))
2925 goto done;
2926
2927 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2928 dev = vlan_dev_real_dev(dev);
2929 goto recheck;
2930 }
2931
2932 if (!is_netxen_netdev(dev))
2933 goto done;
2934
2935 adapter = netdev_priv(dev);
2936
2937 if (!adapter || !netxen_destip_supported(adapter))
2938 goto done;
2939
2940 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2941 goto done;
2942
2943 switch (event) {
2944 case NETDEV_UP:
2945 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2946 break;
2947 case NETDEV_DOWN:
2948 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2949 break;
2950 default:
2951 break;
2952 }
2953
2954done:
2955 return NOTIFY_DONE;
2956}
2957
2958static struct notifier_block netxen_netdev_cb = {
2959 .notifier_call = netxen_netdev_event,
2960};
2961
2962static struct notifier_block netxen_inetaddr_cb = {
2963 .notifier_call = netxen_inetaddr_event,
2964};
9feae56c
RD		 2965#else
2966static void
2967netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2968{ }
044824d9 2969#endif
6598b169 2970
e87ad553
AKS		 2971static struct pci_error_handlers netxen_err_handler = {
2972 .error_detected = netxen_io_error_detected,
2973 .slot_reset = netxen_io_slot_reset,
2974 .resume = netxen_io_resume,
2975};
2976
3d396eb1
AK		 2977static struct pci_driver netxen_driver = {
2978 .name = netxen_nic_driver_name,
2979 .id_table = netxen_pci_tbl,
2980 .probe = netxen_nic_probe,
0b72e659 2981 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2982#ifdef CONFIG_PM
0b72e659 2983 .suspend = netxen_nic_suspend,
22b5794b 2984 .resume = netxen_nic_resume,
01542cd1 2985#endif
e87ad553
AKS		 2986 .shutdown = netxen_nic_shutdown,
2987 .err_handler = &netxen_err_handler
3d396eb1
AK		 2988};
2989
3d396eb1
AK		 2990static int __init netxen_init_module(void)
2991{
ff4fbd43
DP		 2992 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2993
044824d9 2994#ifdef CONFIG_INET
6598b169
DP		 2995 register_netdevice_notifier(&netxen_netdev_cb);
2996 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2997#endif
184231bd 2998 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2999}
3000
3001module_init(netxen_init_module);
3002
3003static void __exit netxen_exit_module(void)
3004{
3d396eb1 3005 pci_unregister_driver(&netxen_driver);
6598b169 3006
044824d9 3007#ifdef CONFIG_INET
6598b169
DP		 3008 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3009 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3010#endif
3d396eb1
AK		 3011}
3012
3013module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)