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netxen: firmware hang detection
[mirror_ubuntu-artful-kernel.git] / drivers / net / netxen / netxen_nic_main.c
CommitLineData
3d396eb1 1/*
5d242f1c 2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3d396eb1 3 * All rights reserved.
80922fbc 4 *
3d396eb1
AK		 5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
80922fbc 9 *
3d396eb1
AK		 10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
80922fbc 14 *
3d396eb1
AK		 15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
80922fbc 19 *
3d396eb1
AK		 20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
80922fbc 22 *
3d396eb1
AK		 23 * Contact Information:
24 * info@netxen.com
5d242f1c
DP		 25 * NetXen Inc,
26 * 18922 Forge Drive
27 * Cupertino, CA 95014-0701
3d396eb1
AK		 28 *
29 */
30
cb8011ad 31#include <linux/vmalloc.h>
e98e3350 32#include <linux/interrupt.h>
3d396eb1
AK		 33#include "netxen_nic_hw.h"
34
35#include "netxen_nic.h"
3d396eb1 36
1494a814 37#include <linux/dma-mapping.h>
391587c3 38#include <linux/if_vlan.h>
c9bdd4b5 39#include <net/ip.h>
00977784 40#include <linux/ipv6.h>
6598b169 41#include <linux/inetdevice.h>
1494a814 42
3d396eb1
AK		 43MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
44MODULE_LICENSE("GPL");
45MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
46
ceded32f 47char netxen_nic_driver_name[] = "netxen_nic";
3d396eb1 48static char netxen_nic_driver_string[] = "NetXen Network Driver version "
cb8011ad 49 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 50
2956640d
DP		 51static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52
53/* Default to restricted 1G auto-neg mode */
54static int wol_port_mode = 5;
55
56static int use_msi = 1;
57
58static int use_msi_x = 1;
59
3d396eb1
AK		 60/* Local functions to NetXen NIC driver */
61static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 62 const struct pci_device_id *ent);
3d396eb1
AK		 63static void __devexit netxen_nic_remove(struct pci_dev *pdev);
64static int netxen_nic_open(struct net_device *netdev);
65static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 66static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
3d396eb1 68static void netxen_tx_timeout(struct net_device *netdev);
f17443f4 69static void netxen_reset_task(struct work_struct *work);
6a581e93
DP		 70static void netxen_fw_poll_work(struct work_struct *work);
71static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 74static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 75#ifdef CONFIG_NET_POLL_CONTROLLER
76static void netxen_nic_poll_controller(struct net_device *netdev);
77#endif
fa3ce355
NK		 78
79static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
81
6a581e93
DP		 82static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
83static int netxen_can_start_firmware(struct netxen_adapter *adapter);
84
1494a814 85static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 86static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 87static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1
AK		 88
89/* PCI Device ID Table */
70081ac5 90#define ENTRY(device) \
040dec3b 91 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 92 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
93
3d396eb1 94static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 95 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
96 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
97 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
98 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
99 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
100 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
101 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
102 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 103 {0,}
104};
105
106MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
107
7830b22c
DP		 108static uint32_t crb_cmd_producer[4] = {
109 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
110 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
111};
112
c9fc891f 113void
3ce06a32 114netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 115 struct nx_host_tx_ring *tx_ring)
3176ff3e 116{
cb2107be
DP		 117 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
118
119 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
120 netif_stop_queue(adapter->netdev);
121 smp_mb();
122 }
3176ff3e
MT		 123}
124
7830b22c
DP		 125static uint32_t crb_cmd_consumer[4] = {
126 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
127 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
128};
129
3ce06a32
DP		 130static inline void
131netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 132 struct nx_host_tx_ring *tx_ring)
3176ff3e 133{
cb2107be 134 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 135}
136
2956640d 137static uint32_t msi_tgt_status[8] = {
443be796 138 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 139 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
140 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
141 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 142};
143
2956640d
DP		 144static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
145
d8b100c5 146static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 147{
d8b100c5
DP		 148 struct netxen_adapter *adapter = sds_ring->adapter;
149
f98a9f69 150 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 151}
152
d8b100c5 153static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 154{
d8b100c5
DP		 155 struct netxen_adapter *adapter = sds_ring->adapter;
156
f98a9f69 157 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 158
092bc571
DP		 159 if (!NETXEN_IS_MSI_FAMILY(adapter))
160 adapter->pci_write_immediate(adapter,
161 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
4638aef1
SH		 162}
163
71dcddbd
DP		 164static int
165netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
166{
167 int size = sizeof(struct nx_host_sds_ring) * count;
168
169 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
170
171 return (recv_ctx->sds_rings == NULL);
172}
173
d8b100c5 174static void
71dcddbd
DP		 175netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
176{
177 if (recv_ctx->sds_rings != NULL)
178 kfree(recv_ctx->sds_rings);
232e7d68
DP		 179
180 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 181}
182
183static int
d8b100c5
DP		 184netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
185{
186 int ring;
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
189
71dcddbd 190 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 191 return -ENOMEM;
71dcddbd 192
d8b100c5
DP		 193 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
194 sds_ring = &recv_ctx->sds_rings[ring];
195 netif_napi_add(netdev, &sds_ring->napi,
196 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
197 }
71dcddbd
DP		 198
199 return 0;
d8b100c5
DP		 200}
201
232e7d68
DP		 202static void
203netxen_napi_del(struct netxen_adapter *adapter)
204{
205 int ring;
206 struct nx_host_sds_ring *sds_ring;
207 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
208
209 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
210 sds_ring = &recv_ctx->sds_rings[ring];
211 netif_napi_del(&sds_ring->napi);
212 }
213
214 netxen_free_sds_rings(&adapter->recv_ctx);
215}
216
d8b100c5
DP		 217static void
218netxen_napi_enable(struct netxen_adapter *adapter)
219{
220 int ring;
221 struct nx_host_sds_ring *sds_ring;
222 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
223
224 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
225 sds_ring = &recv_ctx->sds_rings[ring];
226 napi_enable(&sds_ring->napi);
227 netxen_nic_enable_int(sds_ring);
228 }
229}
230
231static void
232netxen_napi_disable(struct netxen_adapter *adapter)
233{
234 int ring;
235 struct nx_host_sds_ring *sds_ring;
236 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
237
238 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
239 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 240 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 241 napi_synchronize(&sds_ring->napi);
242 napi_disable(&sds_ring->napi);
d8b100c5
DP		 243 }
244}
245
50c643e7 246static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 247{
248 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 249 uint64_t mask, cmask;
250
251 adapter->pci_using_dac = 0;
2956640d 252
6afd142f 253 mask = DMA_BIT_MASK(32);
6afd142f 254 cmask = DMA_BIT_MASK(32);
1f434f63 255
50c643e7 256 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 257#ifndef CONFIG_IA64
6afd142f 258 mask = DMA_BIT_MASK(35);
1f434f63 259#endif
50c643e7
DP		 260 } else {
261 mask = DMA_BIT_MASK(39);
262 cmask = mask;
263 }
264
2956640d 265 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 266 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 267 adapter->pci_using_dac = 1;
268 return 0;
269 }
2956640d 270
1f434f63
DP		 271 return -EIO;
272}
273
274/* Update addressable range if firmware supports it */
275static int
276nx_update_dma_mask(struct netxen_adapter *adapter)
277{
278 int change, shift, err;
50c643e7 279 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 280 struct pci_dev *pdev = adapter->pdev;
281
282 change = 0;
283
f98a9f69 284 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 285 if (shift > 32)
1f434f63
DP		 286 return 0;
287
288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
289 change = 1;
290 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
291 change = 1;
292
293 if (change) {
294 old_mask = pdev->dma_mask;
50c643e7
DP		 295 old_cmask = pdev->dev.coherent_dma_mask;
296
f60f7856 297 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 298
299 err = pci_set_dma_mask(pdev, mask);
300 if (err)
50c643e7
DP		 301 goto err_out;
302
303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
304
305 err = pci_set_consistent_dma_mask(pdev, mask);
306 if (err)
307 goto err_out;
308 }
309 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 310 }
311
2956640d 312 return 0;
50c643e7
DP		 313
314err_out:
315 pci_set_dma_mask(pdev, old_mask);
316 pci_set_consistent_dma_mask(pdev, old_cmask);
317 return err;
2956640d
DP		 318}
319
24767ab1
DP		 320static void
321netxen_check_options(struct netxen_adapter *adapter)
2956640d 322{
24767ab1
DP		 323 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
324 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
325 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
326 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
327 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
328 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
329 }
2956640d 330
f6d21f44
DP		 331 adapter->msix_supported = 0;
332 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
c7860a2a 333 adapter->msix_supported = !!use_msi_x;
f6d21f44
DP		 334 adapter->rss_supported = !!use_msi_x;
335 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
336 switch (adapter->ahw.board_type) {
337 case NETXEN_BRDTYPE_P2_SB31_10G:
338 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
f6d21f44
DP		 339 adapter->msix_supported = !!use_msi_x;
340 adapter->rss_supported = !!use_msi_x;
341 break;
342 default:
343 break;
344 }
345 }
2956640d 346
24767ab1 347 adapter->num_txd = MAX_CMD_DESCRIPTORS;
2956640d 348
24767ab1
DP		 349 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
350 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
351 adapter->max_rds_rings = 3;
352 } else {
353 adapter->num_lro_rxd = 0;
354 adapter->max_rds_rings = 2;
355 }
2956640d
DP		 356}
357
358static int
359netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
360{
27c915a4 361 u32 val, timeout;
2956640d
DP		 362
363 if (first_boot == 0x55555555) {
364 /* This is the first boot after power up */
f98a9f69 365 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 366
367 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
368 return 0;
2956640d
DP		 369
370 /* PCI bus master workaround */
f98a9f69 371 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 372 if (!(first_boot & 0x4)) {
373 first_boot |= 0x4;
f98a9f69
DP		 374 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
375 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 376 }
377
378 /* This is the first boot after power up */
f98a9f69 379 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 380 if (first_boot != 0x80000f) {
381 /* clear the register for future unloads/loads */
f98a9f69 382 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 383 return -EIO;
2956640d
DP		 384 }
385
27c915a4 386 /* Start P2 boot loader */
f98a9f69
DP		 387 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
388 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 389 timeout = 0;
390 do {
391 msleep(1);
f98a9f69 392 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 393
394 if (++timeout > 5000)
395 return -EIO;
396
397 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 398 }
27c915a4 399 return 0;
2956640d
DP		 400}
401
402static void netxen_set_port_mode(struct netxen_adapter *adapter)
403{
404 u32 val, data;
405
1e2d0059 406 val = adapter->ahw.board_type;
2956640d
DP		 407 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
408 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
409 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
410 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 411 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 412 } else if (port_mode == NETXEN_PORT_MODE_XG) {
413 data = NETXEN_PORT_MODE_XG;
f98a9f69 414 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 415 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
416 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 417 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 418 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
419 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 420 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 421 } else {
422 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 423 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 424 }
425
426 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
427 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
428 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
429 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
430 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
431 }
f98a9f69 432 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 433 }
434}
435
2956640d
DP		 436static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
437{
438 u32 control;
439 int pos;
440
441 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
442 if (pos) {
443 pci_read_config_dword(pdev, pos, &control);
444 if (enable)
445 control |= PCI_MSIX_FLAGS_ENABLE;
446 else
447 control = 0;
448 pci_write_config_dword(pdev, pos, control);
449 }
450}
451
be339aee 452static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 453{
454 int i;
455
be339aee 456 for (i = 0; i < count; i++)
2956640d
DP		 457 adapter->msix_entries[i].entry = i;
458}
459
9dc28efe
DP		 460static int
461netxen_read_mac_addr(struct netxen_adapter *adapter)
462{
463 int i;
464 unsigned char *p;
465 __le64 mac_addr;
9dc28efe
DP		 466 struct net_device *netdev = adapter->netdev;
467 struct pci_dev *pdev = adapter->pdev;
468
9dc28efe
DP		 469 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
470 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
471 return -EIO;
472 } else {
473 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
474 return -EIO;
475 }
476
477 p = (unsigned char *)&mac_addr;
478 for (i = 0; i < 6; i++)
479 netdev->dev_addr[i] = *(p + 5 - i);
480
481 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
482
483 /* set station address */
484
e174961c
JB		 485 if (!is_valid_ether_addr(netdev->perm_addr))
486 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 487
488 return 0;
489}
490
3d0a3cc9
DP		 491int netxen_nic_set_mac(struct net_device *netdev, void *p)
492{
493 struct netxen_adapter *adapter = netdev_priv(netdev);
494 struct sockaddr *addr = p;
495
496 if (!is_valid_ether_addr(addr->sa_data))
497 return -EINVAL;
498
499 if (netif_running(netdev)) {
500 netif_device_detach(netdev);
501 netxen_napi_disable(adapter);
502 }
503
504 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
505 adapter->macaddr_set(adapter, addr->sa_data);
506
507 if (netif_running(netdev)) {
508 netif_device_attach(netdev);
509 netxen_napi_enable(adapter);
510 }
511 return 0;
512}
513
1abd266f
SH		 514static void netxen_set_multicast_list(struct net_device *dev)
515{
516 struct netxen_adapter *adapter = netdev_priv(dev);
517
3d0a3cc9 518 adapter->set_multi(dev);
1abd266f
SH		 519}
520
521static const struct net_device_ops netxen_netdev_ops = {
522 .ndo_open = netxen_nic_open,
523 .ndo_stop = netxen_nic_close,
524 .ndo_start_xmit = netxen_nic_xmit_frame,
525 .ndo_get_stats = netxen_nic_get_stats,
526 .ndo_validate_addr = eth_validate_addr,
527 .ndo_set_multicast_list = netxen_set_multicast_list,
528 .ndo_set_mac_address = netxen_nic_set_mac,
529 .ndo_change_mtu = netxen_nic_change_mtu,
530 .ndo_tx_timeout = netxen_tx_timeout,
531#ifdef CONFIG_NET_POLL_CONTROLLER
532 .ndo_poll_controller = netxen_nic_poll_controller,
533#endif
534};
535
97daee83
DP		 536static void
537netxen_setup_intr(struct netxen_adapter *adapter)
538{
539 struct netxen_legacy_intr_set *legacy_intrp;
540 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 541 int err, num_msix;
542
543 if (adapter->rss_supported) {
544 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
545 MSIX_ENTRIES_PER_ADAPTER : 2;
546 } else
547 num_msix = 1;
548
549 adapter->max_sds_rings = 1;
97daee83
DP		 550
551 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 552
553 if (adapter->ahw.revision_id >= NX_P3_B0)
554 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
555 else
556 legacy_intrp = &legacy_intr[0];
557 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
558 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
559 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
560 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
561
562 netxen_set_msix_bit(pdev, 0);
563
564 if (adapter->msix_supported) {
565
be339aee
DP		 566 netxen_init_msix_entries(adapter, num_msix);
567 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
568 if (err == 0) {
569 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
570 netxen_set_msix_bit(pdev, 1);
97daee83 571
be339aee
DP		 572 if (adapter->rss_supported)
573 adapter->max_sds_rings = num_msix;
97daee83 574
be339aee
DP		 575 dev_info(&pdev->dev, "using msi-x interrupts\n");
576 return;
577 }
578
579 if (err > 0)
580 pci_disable_msix(pdev);
581
582 /* fall through for msi */
97daee83 583 }
be339aee
DP		 584
585 if (use_msi && !pci_enable_msi(pdev)) {
586 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
587 adapter->msi_tgt_status =
588 msi_tgt_status[adapter->ahw.pci_func];
589 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 590 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 591 return;
592 }
593
594 dev_info(&pdev->dev, "using legacy interrupts\n");
595 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 596}
597
598static void
599netxen_teardown_intr(struct netxen_adapter *adapter)
600{
601 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
602 pci_disable_msix(adapter->pdev);
603 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
604 pci_disable_msi(adapter->pdev);
605}
606
607static void
608netxen_cleanup_pci_map(struct netxen_adapter *adapter)
609{
610 if (adapter->ahw.db_base != NULL)
611 iounmap(adapter->ahw.db_base);
612 if (adapter->ahw.pci_base0 != NULL)
613 iounmap(adapter->ahw.pci_base0);
614 if (adapter->ahw.pci_base1 != NULL)
615 iounmap(adapter->ahw.pci_base1);
616 if (adapter->ahw.pci_base2 != NULL)
617 iounmap(adapter->ahw.pci_base2);
618}
619
620static int
621netxen_setup_pci_map(struct netxen_adapter *adapter)
622{
623 void __iomem *mem_ptr0 = NULL;
624 void __iomem *mem_ptr1 = NULL;
625 void __iomem *mem_ptr2 = NULL;
626 void __iomem *db_ptr = NULL;
627
97daee83
DP		 628 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
629
630 struct pci_dev *pdev = adapter->pdev;
631 int pci_func = adapter->ahw.pci_func;
632
633 int err = 0;
634
635 /*
636 * Set the CRB window to invalid. If any register in window 0 is
637 * accessed it should set the window to 0 and then reset it to 1.
638 */
639 adapter->curr_window = 255;
640 adapter->ahw.qdr_sn_window = -1;
641 adapter->ahw.ddr_mn_window = -1;
642
643 /* remap phys address */
644 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
645 mem_len = pci_resource_len(pdev, 0);
646 pci_len0 = 0;
647
648 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
649 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
650 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
651 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
97daee83
DP		 652 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
653 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
654 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
655
656 /* 128 Meg of memory */
657 if (mem_len == NETXEN_PCI_128MB_SIZE) {
658 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
659 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
660 SECOND_PAGE_GROUP_SIZE);
661 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
662 THIRD_PAGE_GROUP_SIZE);
97daee83
DP		 663 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
664 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
665 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
666 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83
DP		 667 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
668 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
669 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
670 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
671 adapter->pci_write_immediate =
672 netxen_nic_pci_write_immediate_2M;
97daee83
DP		 673 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
674 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
675 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
676
677 mem_ptr0 = pci_ioremap_bar(pdev, 0);
678 if (mem_ptr0 == NULL) {
679 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
680 return -EIO;
681 }
682 pci_len0 = mem_len;
97daee83
DP		 683
684 adapter->ahw.ddr_mn_window = 0;
685 adapter->ahw.qdr_sn_window = 0;
686
687 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
688 (pci_func * 0x20);
689 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
690 if (pci_func < 4)
691 adapter->ahw.ms_win_crb += (pci_func * 0x20);
692 else
693 adapter->ahw.ms_win_crb +=
694 0xA0 + ((pci_func - 4) * 0x10);
695 } else {
696 return -EIO;
697 }
698
699 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
700
701 adapter->ahw.pci_base0 = mem_ptr0;
702 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 703 adapter->ahw.pci_base1 = mem_ptr1;
704 adapter->ahw.pci_base2 = mem_ptr2;
705
706 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
707 goto skip_doorbell;
708
709 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
710 db_len = pci_resource_len(pdev, 4);
711
712 if (db_len == 0) {
713 printk(KERN_ERR "%s: doorbell is disabled\n",
714 netxen_nic_driver_name);
715 err = -EIO;
716 goto err_out;
717 }
718
719 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
720 if (!db_ptr) {
721 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
722 netxen_nic_driver_name);
723 err = -EIO;
724 goto err_out;
725 }
726
727skip_doorbell:
728 adapter->ahw.db_base = db_ptr;
729 adapter->ahw.db_len = db_len;
730 return 0;
731
732err_out:
733 netxen_cleanup_pci_map(adapter);
734 return err;
735}
736
ba599d4f 737static int
6a581e93 738netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 739{
740 int val, err, first_boot;
741 struct pci_dev *pdev = adapter->pdev;
742
6a581e93 743 if (!netxen_can_start_firmware(adapter))
96f2ebd2 744 goto wait_init;
0b72e659 745
f98a9f69 746 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 747
748 err = netxen_check_hw_init(adapter, first_boot);
749 if (err) {
750 dev_err(&pdev->dev, "error in init HW init sequence\n");
751 return err;
752 }
753
6a581e93 754 netxen_request_firmware(adapter);
f7185c71 755
67c38fc6 756 err = netxen_need_fw_reset(adapter);
1dbc84a7 757 if (err < 0)
db4cfd8a 758 goto err_out;
1dbc84a7
DP		 759 if (err == 0)
760 goto wait_init;
67c38fc6 761
ba599d4f 762 if (first_boot != 0x55555555) {
f98a9f69 763 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
ba599d4f
DP		 764 netxen_pinit_from_rom(adapter, 0);
765 msleep(1);
766 }
567c6c4e 767
f98a9f69 768 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 769 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
770 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
771
567c6c4e
DP		 772 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
773 netxen_set_port_mode(adapter);
774
db4cfd8a
DP		 775 err = netxen_load_firmware(adapter);
776 if (err)
777 goto err_out;
ba599d4f 778
6a581e93
DP		 779 netxen_release_firmware(adapter);
780
ba599d4f
DP		 781 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
782
783 /* Initialize multicast addr pool owners */
784 val = 0x7654;
1e2d0059 785 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 786 val |= 0x0f000000;
f98a9f69 787 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 788
789 }
790
83ac51fa 791 err = netxen_init_dummy_dma(adapter);
ba599d4f 792 if (err)
db4cfd8a 793 goto err_out;
ba599d4f
DP		 794
795 /*
796 * Tell the hardware our version number.
797 */
798 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
799 | ((_NETXEN_NIC_LINUX_MINOR << 8))
800 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 801 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 802
6a581e93
DP		 803 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
804
96f2ebd2 805wait_init:
ba599d4f
DP		 806 /* Handshake with the card before we register the devices. */
807 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
808 if (err) {
83ac51fa 809 netxen_free_dummy_dma(adapter);
db4cfd8a 810 goto err_out;
ba599d4f
DP		 811 }
812
68b3cae0
DP		 813 nx_update_dma_mask(adapter);
814
815 netxen_nic_get_firmware_info(adapter);
6a581e93 816 netxen_check_options(adapter);
68b3cae0 817
ba599d4f 818 return 0;
db4cfd8a
DP		 819
820err_out:
821 netxen_release_firmware(adapter);
822 return err;
ba599d4f
DP		 823}
824
9f5bc7f1
DP		 825static int
826netxen_nic_request_irq(struct netxen_adapter *adapter)
827{
828 irq_handler_t handler;
d8b100c5
DP		 829 struct nx_host_sds_ring *sds_ring;
830 int err, ring;
831
9f5bc7f1
DP		 832 unsigned long flags = IRQF_SAMPLE_RANDOM;
833 struct net_device *netdev = adapter->netdev;
d8b100c5 834 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 835
9f5bc7f1
DP		 836 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
837 handler = netxen_msix_intr;
838 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
839 handler = netxen_msi_intr;
840 else {
841 flags |= IRQF_SHARED;
842 handler = netxen_intr;
843 }
844 adapter->irq = netdev->irq;
845
d8b100c5
DP		 846 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
847 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 848 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 849 err = request_irq(sds_ring->irq, handler,
850 flags, sds_ring->name, sds_ring);
851 if (err)
852 return err;
853 }
854
855 return 0;
856}
857
858static void
859netxen_nic_free_irq(struct netxen_adapter *adapter)
860{
861 int ring;
862 struct nx_host_sds_ring *sds_ring;
863
864 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
865
866 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
867 sds_ring = &recv_ctx->sds_rings[ring];
868 free_irq(sds_ring->irq, sds_ring);
869 }
9f5bc7f1
DP		 870}
871
ca2ef330
DP		 872static void
873netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
874{
875 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
876 adapter->coal.normal.data.rx_time_us =
877 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
878 adapter->coal.normal.data.rx_packets =
879 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
880 adapter->coal.normal.data.tx_time_us =
881 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
882 adapter->coal.normal.data.tx_packets =
883 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
884}
885
9f5bc7f1
DP		 886static int
887netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
888{
889 int err;
890
db4cfd8a
DP		 891 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
892 return -EIO;
893
9f5bc7f1
DP		 894 err = adapter->init_port(adapter, adapter->physical_port);
895 if (err) {
896 printk(KERN_ERR "%s: Failed to initialize port %d\n",
897 netxen_nic_driver_name, adapter->portnum);
898 return err;
899 }
3d0a3cc9
DP		 900 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
901 adapter->macaddr_set(adapter, netdev->dev_addr);
9f5bc7f1 902
3d0a3cc9
DP		 903 adapter->set_multi(netdev);
904 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 905
906 adapter->ahw.linkup = 0;
9f5bc7f1 907
d8b100c5
DP		 908 if (adapter->max_sds_rings > 1)
909 netxen_config_rss(adapter, 1);
9f5bc7f1 910
ca2ef330
DP		 911 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
912 netxen_config_intr_coalesce(adapter);
913
1bb482f8
NK		 914 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
915 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
916
b2af9cb0
DP		 917 netxen_napi_enable(adapter);
918
5103c9f7 919 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 920 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 921 else
922 netxen_nic_set_link_parameters(adapter);
923
6a581e93 924 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 925 return 0;
926}
927
928static void
929netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
930{
db4cfd8a
DP		 931 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
932 return;
933
6a581e93
DP		 934 clear_bit(__NX_DEV_UP, &adapter->state);
935
b2af9cb0 936 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 937 netif_carrier_off(netdev);
b2af9cb0 938 netif_tx_disable(netdev);
9f5bc7f1
DP		 939
940 if (adapter->stop_port)
941 adapter->stop_port(adapter);
942
5cf4d323
DP		 943 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
944 netxen_p3_free_mac_list(adapter);
945
22b5794b
AKS		 946 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
947
be339aee
DP		 948 netxen_napi_disable(adapter);
949
9f5bc7f1 950 netxen_release_tx_buffers(adapter);
b2af9cb0 951 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 952}
953
954
955static int
956netxen_nic_attach(struct netxen_adapter *adapter)
957{
958 struct net_device *netdev = adapter->netdev;
959 struct pci_dev *pdev = adapter->pdev;
becf46a0 960 int err, ring;
d8b100c5 961 struct nx_host_rds_ring *rds_ring;
d877f1e3 962 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 963
7042cd8f
AKS		 964 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
965 return 0;
966
9f5bc7f1 967 err = netxen_init_firmware(adapter);
232e7d68
DP		 968 if (err)
969 return err;
970
971 err = netxen_napi_add(adapter, netdev);
972 if (err)
973 return err;
9f5bc7f1 974
9f5bc7f1
DP		 975 err = netxen_alloc_sw_resources(adapter);
976 if (err) {
977 printk(KERN_ERR "%s: Error in setting sw resources\n",
978 netdev->name);
979 return err;
980 }
981
9f5bc7f1
DP		 982 err = netxen_alloc_hw_resources(adapter);
983 if (err) {
984 printk(KERN_ERR "%s: Error in setting hw resources\n",
985 netdev->name);
986 goto err_out_free_sw;
987 }
988
4f96b988 989 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 990 tx_ring = adapter->tx_ring;
d877f1e3
DP		 991 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
992 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
9f5bc7f1 993
cb2107be
DP		 994 tx_ring->producer = 0;
995 tx_ring->sw_consumer = 0;
996
997 netxen_nic_update_cmd_producer(adapter, tx_ring);
998 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 999 }
1000
d8b100c5
DP		 1001 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1002 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1003 netxen_post_rx_buffers(adapter, ring, rds_ring);
1004 }
9f5bc7f1
DP		 1005
1006 err = netxen_nic_request_irq(adapter);
1007 if (err) {
1008 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1009 netdev->name);
1010 goto err_out_free_rxbuf;
1011 }
1012
ca2ef330
DP		 1013 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1014 netxen_nic_init_coalesce_defaults(adapter);
1015
fa3ce355
NK		 1016 netxen_create_sysfs_entries(adapter);
1017
9f5bc7f1
DP		 1018 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1019 return 0;
1020
1021err_out_free_rxbuf:
1022 netxen_release_rx_buffers(adapter);
1023 netxen_free_hw_resources(adapter);
1024err_out_free_sw:
1025 netxen_free_sw_resources(adapter);
1026 return err;
1027}
1028
1029static void
1030netxen_nic_detach(struct netxen_adapter *adapter)
1031{
7042cd8f
AKS		 1032 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1033 return;
1034
fa3ce355
NK		 1035 netxen_remove_sysfs_entries(adapter);
1036
9f5bc7f1 1037 netxen_free_hw_resources(adapter);
cf981ffb 1038 netxen_release_rx_buffers(adapter);
be339aee 1039 netxen_nic_free_irq(adapter);
232e7d68 1040 netxen_napi_del(adapter);
9f5bc7f1
DP		 1041 netxen_free_sw_resources(adapter);
1042
1043 adapter->is_up = 0;
1044}
1045
7042cd8f
AKS		 1046int
1047netxen_nic_reset_context(struct netxen_adapter *adapter)
1048{
1049 int err = 0;
1050 struct net_device *netdev = adapter->netdev;
1051
6a581e93
DP		 1052 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1053 return -EBUSY;
1054
7042cd8f
AKS		 1055 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1056
6a581e93
DP		 1057 netif_device_detach(netdev);
1058
7042cd8f
AKS		 1059 if (netif_running(netdev))
1060 netxen_nic_down(adapter, netdev);
1061
1062 netxen_nic_detach(adapter);
1063
6a581e93
DP		 1064 if (netif_running(netdev)) {
1065 err = netxen_nic_attach(adapter);
1066 if (!err)
1067 err = netxen_nic_up(adapter, netdev);
7042cd8f 1068
6a581e93
DP		 1069 if (err)
1070 goto done;
1071 }
1072
1073 netif_device_attach(netdev);
7042cd8f 1074 }
6a581e93 1075
7042cd8f 1076done:
6a581e93 1077 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1078 return err;
1079}
1080
f17443f4
DP		 1081static int
1082netxen_setup_netdev(struct netxen_adapter *adapter,
1083 struct net_device *netdev)
1084{
1085 int err = 0;
1086 struct pci_dev *pdev = adapter->pdev;
1087
1088 adapter->rx_csum = 1;
1089 adapter->mc_enabled = 0;
1090 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1091 adapter->max_mc_count = 38;
1092 else
1093 adapter->max_mc_count = 16;
1094
1095 netdev->netdev_ops = &netxen_netdev_ops;
1096 netdev->watchdog_timeo = 2*HZ;
1097
1098 netxen_nic_change_mtu(netdev, netdev->mtu);
1099
1100 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1101
1102 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1103 netdev->features |= (NETIF_F_GRO);
1104 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1105
1106 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1107 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1108 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1109 }
1110
1111 if (adapter->pci_using_dac) {
1112 netdev->features |= NETIF_F_HIGHDMA;
1113 netdev->vlan_features |= NETIF_F_HIGHDMA;
1114 }
1115
028afe71
DP		 1116 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1117 netdev->features |= (NETIF_F_HW_VLAN_TX);
1118
1bb482f8
NK		 1119 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1120 netdev->features |= NETIF_F_LRO;
1121
f17443f4
DP		 1122 netdev->irq = adapter->msix_entries[0].vector;
1123
f17443f4
DP		 1124 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1125
1126 if (netxen_read_mac_addr(adapter))
1127 dev_warn(&pdev->dev, "failed to read mac addr\n");
1128
1129 netif_carrier_off(netdev);
1130 netif_stop_queue(netdev);
1131
1132 err = register_netdev(netdev);
1133 if (err) {
1134 dev_err(&pdev->dev, "failed to register net device\n");
1135 return err;
1136 }
1137
1138 return 0;
1139}
1140
3d396eb1
AK		 1141static int __devinit
1142netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1143{
1144 struct net_device *netdev = NULL;
1145 struct netxen_adapter *adapter = NULL;
2956640d 1146 int i = 0, err;
3176ff3e 1147 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1148 uint8_t revision_id;
3d396eb1 1149
3176ff3e 1150 if (pdev->class != 0x020000) {
dcd56fdb 1151 printk(KERN_DEBUG "NetXen function %d, class %x will not "
3176ff3e 1152 "be enabled.\n",pci_func_id, pdev->class);
ed25ffa1
AK		 1153 return -ENODEV;
1154 }
2956640d 1155
11d89d63
DP		 1156 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1157 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1158 "will not be enabled.\n",
1159 NX_P3_A0, NX_P3_B1);
1160 return -ENODEV;
1161 }
1162
3d396eb1
AK		 1163 if ((err = pci_enable_device(pdev)))
1164 return err;
2956640d 1165
3d396eb1
AK		 1166 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1167 err = -ENODEV;
1168 goto err_out_disable_pdev;
1169 }
1170
1171 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1172 goto err_out_disable_pdev;
1173
1174 pci_set_master(pdev);
3176ff3e
MT		 1175
1176 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1177 if(!netdev) {
f17443f4
DP		 1178 dev_err(&pdev->dev, "failed to allocate net_device\n");
1179 err = -ENOMEM;
3176ff3e
MT		 1180 goto err_out_free_res;
1181 }
1182
3176ff3e
MT		 1183 SET_NETDEV_DEV(netdev, &pdev->dev);
1184
4cf1653a 1185 adapter = netdev_priv(netdev);
2956640d
DP		 1186 adapter->netdev = netdev;
1187 adapter->pdev = pdev;
13ba9c77 1188 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1189
1190 revision_id = pdev->revision;
1191 adapter->ahw.revision_id = revision_id;
1192
50c643e7 1193 err = nx_set_dma_mask(adapter);
2956640d
DP		 1194 if (err)
1195 goto err_out_free_netdev;
1196
3ce06a32 1197 rwlock_init(&adapter->adapter_lock);
d8b100c5 1198 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1199 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1200
97daee83
DP		 1201 err = netxen_setup_pci_map(adapter);
1202 if (err)
6c80b18d 1203 goto err_out_free_netdev;
3d396eb1 1204
2d1a3bbd 1205 /* This will be reset for mezz cards */
3176ff3e 1206 adapter->portnum = pci_func_id;
3176ff3e 1207
f17443f4
DP		 1208 err = netxen_nic_get_board_info(adapter);
1209 if (err) {
1210 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1211 goto err_out_iounmap;
1212 }
6c80b18d 1213
6c80b18d
MT		 1214 netxen_initialize_adapter_ops(adapter);
1215
13ba9c77 1216 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1217 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1218 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1219 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1220 if (pci_func_id >= 2)
13ba9c77 1221 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1222 break;
1223 default:
1224 break;
1225 }
13ba9c77 1226
6a581e93 1227 err = netxen_start_firmware(adapter);
0b72e659
DP		 1228 if (err)
1229 goto err_out_iounmap;
f17443f4 1230
3d396eb1 1231 /*
6c80b18d 1232 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1233 */
dcd56fdb 1234 adapter->physical_port = adapter->portnum;
4f96b988 1235 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1236 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1237 if (i != 0x55555555)
1238 adapter->physical_port = i;
1239 }
6c80b18d 1240
6a581e93 1241 netxen_nic_clear_stats(adapter);
2956640d 1242
97daee83 1243 netxen_setup_intr(adapter);
2956640d 1244
f17443f4 1245 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1246 if (err)
2956640d 1247 goto err_out_disable_msi;
6c80b18d
MT		 1248
1249 pci_set_drvdata(pdev, adapter);
3d396eb1 1250
6a581e93
DP		 1251 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1252
1e2d0059 1253 switch (adapter->ahw.port_type) {
2956640d
DP		 1254 case NETXEN_NIC_GBE:
1255 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1256 adapter->netdev->name);
1257 break;
1258 case NETXEN_NIC_XGBE:
1259 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1260 adapter->netdev->name);
1261 break;
3d396eb1 1262 }
3d396eb1 1263
2956640d
DP		 1264 return 0;
1265
1266err_out_disable_msi:
97daee83 1267 netxen_teardown_intr(adapter);
6c80b18d 1268
83ac51fa 1269 netxen_free_dummy_dma(adapter);
3d396eb1 1270
6a581e93
DP		 1271 nx_decr_dev_ref_cnt(adapter);
1272
2956640d 1273err_out_iounmap:
97daee83 1274 netxen_cleanup_pci_map(adapter);
cb8011ad 1275
6c80b18d
MT		 1276err_out_free_netdev:
1277 free_netdev(netdev);
1278
1279err_out_free_res:
3d396eb1 1280 pci_release_regions(pdev);
6c80b18d
MT		 1281
1282err_out_disable_pdev:
2956640d 1283 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1284 pci_disable_device(pdev);
1285 return err;
1286}
1287
1288static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1289{
1290 struct netxen_adapter *adapter;
3176ff3e 1291 struct net_device *netdev;
3d396eb1 1292
6c80b18d 1293 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1294 if (adapter == NULL)
1295 return;
1296
6c80b18d
MT		 1297 netdev = adapter->netdev;
1298
6a581e93
DP		 1299 netxen_cancel_fw_work(adapter);
1300
96acb6eb
DP		 1301 unregister_netdev(netdev);
1302
e424fa9d
AKS		 1303 cancel_work_sync(&adapter->tx_timeout_task);
1304
7042cd8f 1305 netxen_nic_detach(adapter);
3d396eb1 1306
6a581e93
DP		 1307 nx_decr_dev_ref_cnt(adapter);
1308
439b454e 1309 if (adapter->portnum == 0)
83ac51fa 1310 netxen_free_dummy_dma(adapter);
96acb6eb 1311
6a581e93
DP		 1312 clear_bit(__NX_RESETTING, &adapter->state);
1313
97daee83 1314 netxen_teardown_intr(adapter);
3052246c 1315
97daee83 1316 netxen_cleanup_pci_map(adapter);
595e3fb8 1317
f7185c71
DP		 1318 netxen_release_firmware(adapter);
1319
595e3fb8 1320 pci_release_regions(pdev);
3052246c 1321 pci_disable_device(pdev);
595e3fb8
MT		 1322 pci_set_drvdata(pdev, NULL);
1323
6c80b18d 1324 free_netdev(netdev);
3d396eb1 1325}
22b5794b 1326static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1327{
0b72e659
DP		 1328 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1329 struct net_device *netdev = adapter->netdev;
22b5794b 1330 int retval;
0b72e659
DP		 1331
1332 netif_device_detach(netdev);
1333
6a581e93
DP		 1334 netxen_cancel_fw_work(adapter);
1335
0b72e659
DP		 1336 if (netif_running(netdev))
1337 netxen_nic_down(adapter, netdev);
1338
e424fa9d
AKS		 1339 cancel_work_sync(&adapter->tx_timeout_task);
1340
7042cd8f 1341 netxen_nic_detach(adapter);
0b72e659 1342
22b5794b
AKS		 1343 if (adapter->portnum == 0)
1344 netxen_free_dummy_dma(adapter);
1345
6a581e93
DP		 1346 nx_decr_dev_ref_cnt(adapter);
1347
1348 clear_bit(__NX_RESETTING, &adapter->state);
1349
22b5794b
AKS		 1350 retval = pci_save_state(pdev);
1351 if (retval)
1352 return retval;
0b72e659
DP		 1353
1354 if (netxen_nic_wol_supported(adapter)) {
1355 pci_enable_wake(pdev, PCI_D3cold, 1);
1356 pci_enable_wake(pdev, PCI_D3hot, 1);
1357 }
1358
1359 pci_disable_device(pdev);
0b72e659
DP		 1360
1361 return 0;
1362}
22b5794b
AKS		 1363static void netxen_nic_shutdown(struct pci_dev *pdev)
1364{
1365 if (__netxen_nic_shutdown(pdev))
1366 return;
1367}
1368#ifdef CONFIG_PM
1369static int
1370netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1371{
1372 int retval;
1373
1374 retval = __netxen_nic_shutdown(pdev);
1375 if (retval)
1376 return retval;
1377
1378 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1379 return 0;
1380}
0b72e659
DP		 1381
1382static int
1383netxen_nic_resume(struct pci_dev *pdev)
1384{
1385 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1386 struct net_device *netdev = adapter->netdev;
1387 int err;
1388
1389 pci_set_power_state(pdev, PCI_D0);
1390 pci_restore_state(pdev);
1391
1392 err = pci_enable_device(pdev);
1393 if (err)
1394 return err;
1395
1396 adapter->curr_window = 255;
1397
6a581e93 1398 err = netxen_start_firmware(adapter);
0b72e659
DP		 1399 if (err) {
1400 dev_err(&pdev->dev, "failed to start firmware\n");
1401 return err;
1402 }
1403
1404 if (netif_running(netdev)) {
1405 err = netxen_nic_attach(adapter);
1406 if (err)
6a581e93 1407 goto err_out;
0b72e659
DP		 1408
1409 err = netxen_nic_up(adapter, netdev);
1410 if (err)
6a581e93 1411 goto err_out_detach;
0b72e659
DP		 1412
1413 netif_device_attach(netdev);
1414 }
1415
6a581e93
DP		 1416 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1417
1418err_out_detach:
1419 netxen_nic_detach(adapter);
1420err_out:
1421 nx_decr_dev_ref_cnt(adapter);
1422 return err;
0b72e659 1423}
01542cd1 1424#endif
0b72e659 1425
3d396eb1
AK		 1426static int netxen_nic_open(struct net_device *netdev)
1427{
4cf1653a 1428 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1429 int err = 0;
3d396eb1 1430
dcd56fdb
DP		 1431 if (adapter->driver_mismatch)
1432 return -EIO;
1433
7042cd8f
AKS		 1434 err = netxen_nic_attach(adapter);
1435 if (err)
1436 return err;
2956640d 1437
9f5bc7f1
DP		 1438 err = netxen_nic_up(adapter, netdev);
1439 if (err)
1440 goto err_out;
05aaa02d 1441
dcd56fdb 1442 netif_start_queue(netdev);
3d396eb1
AK		 1443
1444 return 0;
2956640d 1445
9f5bc7f1
DP		 1446err_out:
1447 netxen_nic_detach(adapter);
2956640d 1448 return err;
3d396eb1
AK		 1449}
1450
1451/*
1452 * netxen_nic_close - Disables a network interface entry point
1453 */
1454static int netxen_nic_close(struct net_device *netdev)
1455{
3176ff3e 1456 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1457
9f5bc7f1 1458 netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1459 return 0;
1460}
1461
1bcfd790
DP		 1462static void
1463netxen_tso_check(struct net_device *netdev,
1464 struct nx_host_tx_ring *tx_ring,
1465 struct cmd_desc_type0 *first_desc,
1466 struct sk_buff *skb)
cd1f8160 1467{
391587c3 1468 u8 opcode = TX_ETHER_PKT;
cdff1036 1469 __be16 protocol = skb->protocol;
028afe71 1470 u16 flags = 0, vid = 0;
1bcfd790 1471 u32 producer;
028afe71 1472 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1473 struct cmd_desc_type0 *hwdesc;
028afe71 1474 struct vlan_ethhdr *vh;
cdff1036 1475
09640e63 1476 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1477
1478 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1479 protocol = vh->h_vlan_encapsulated_proto;
1480 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1481
1482 } else if (vlan_tx_tag_present(skb)) {
1483
1484 flags = FLAGS_VLAN_OOB;
1485 vid = vlan_tx_tag_get(skb);
1486 netxen_set_tx_vlan_tci(first_desc, vid);
1487 vlan_oob = 1;
cdff1036 1488 }
cd1f8160 1489
391587c3
DP		 1490 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1491 skb_shinfo(skb)->gso_size > 0) {
1492
1bcfd790
DP		 1493 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1494
1495 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1496 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1497 if (vlan_oob) {
1498 first_desc->total_hdr_length += VLAN_HLEN;
1499 first_desc->tcp_hdr_offset = VLAN_HLEN;
1500 first_desc->ip_hdr_offset = VLAN_HLEN;
1501 /* Only in case of TSO on vlan device */
1502 flags |= FLAGS_VLAN_TAGGED;
1503 }
391587c3 1504
09640e63 1505 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1506 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1507 tso = 1;
cd1f8160
DP		 1508
1509 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1510 u8 l4proto;
1511
09640e63 1512 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1513 l4proto = ip_hdr(skb)->protocol;
1514
1515 if (l4proto == IPPROTO_TCP)
1516 opcode = TX_TCP_PKT;
1517 else if(l4proto == IPPROTO_UDP)
1518 opcode = TX_UDP_PKT;
09640e63 1519 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1520 l4proto = ipv6_hdr(skb)->nexthdr;
1521
1522 if (l4proto == IPPROTO_TCP)
1523 opcode = TX_TCPV6_PKT;
1524 else if(l4proto == IPPROTO_UDP)
1525 opcode = TX_UDPV6_PKT;
1526 }
cd1f8160 1527 }
028afe71
DP		 1528
1529 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1530 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1531 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1532
1533 if (!tso)
1534 return;
1535
1536 /* For LSO, we need to copy the MAC/IP/TCP headers into
1537 * the descriptor ring
1538 */
1539 producer = tx_ring->producer;
1540 copied = 0;
1541 offset = 2;
1542
028afe71
DP		 1543 if (vlan_oob) {
1544 /* Create a TSO vlan header template for firmware */
1545
1546 hwdesc = &tx_ring->desc_head[producer];
1547 tx_ring->cmd_buf_arr[producer].skb = NULL;
1548
1549 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1550 hdr_len + VLAN_HLEN);
1551
1552 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1553 skb_copy_from_linear_data(skb, vh, 12);
1554 vh->h_vlan_proto = htons(ETH_P_8021Q);
1555 vh->h_vlan_TCI = htons(vid);
1556 skb_copy_from_linear_data_offset(skb, 12,
1557 (char *)vh + 16, copy_len - 16);
1558
545eb370 1559 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1560 offset = 0;
1561
1562 producer = get_next_index(producer, tx_ring->num_desc);
1563 }
1564
1bcfd790
DP		 1565 while (copied < hdr_len) {
1566
1567 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1568 (hdr_len - copied));
1569
1570 hwdesc = &tx_ring->desc_head[producer];
1571 tx_ring->cmd_buf_arr[producer].skb = NULL;
1572
1573 skb_copy_from_linear_data_offset(skb, copied,
1574 (char *)hwdesc + offset, copy_len);
1575
1576 copied += copy_len;
1577 offset = 0;
1578
1579 producer = get_next_index(producer, tx_ring->num_desc);
1580 }
1581
1582 tx_ring->producer = producer;
1583 barrier();
cd1f8160
DP		 1584}
1585
ce644ed4
DP		 1586static int
1587netxen_map_tx_skb(struct pci_dev *pdev,
1588 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1589{
ce644ed4
DP		 1590 struct netxen_skb_frag *nf;
1591 struct skb_frag_struct *frag;
1592 int i, nr_frags;
1593 dma_addr_t map;
1594
1595 nr_frags = skb_shinfo(skb)->nr_frags;
1596 nf = &pbuf->frag_array[0];
1597
1598 map = pci_map_single(pdev, skb->data,
1599 skb_headlen(skb), PCI_DMA_TODEVICE);
1600 if (pci_dma_mapping_error(pdev, map))
1601 goto out_err;
6f703406 1602
ce644ed4
DP		 1603 nf->dma = map;
1604 nf->length = skb_headlen(skb);
1605
1606 for (i = 0; i < nr_frags; i++) {
1607 frag = &skb_shinfo(skb)->frags[i];
1608 nf = &pbuf->frag_array[i+1];
1609
1610 map = pci_map_page(pdev, frag->page, frag->page_offset,
1611 frag->size, PCI_DMA_TODEVICE);
1612 if (pci_dma_mapping_error(pdev, map))
1613 goto unwind;
1614
1615 nf->dma = map;
1616 nf->length = frag->size;
1617 }
1618
1619 return 0;
6f703406 1620
ce644ed4 1621unwind:
cf503e8f
DP		 1622 while (--i >= 0) {
1623 nf = &pbuf->frag_array[i+1];
ce644ed4 1624 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1625 }
ce644ed4
DP		 1626
1627 nf = &pbuf->frag_array[0];
1628 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1629
1630out_err:
1631 return -ENOMEM;
6f703406
DP		 1632}
1633
d32cc3d2
DP		 1634static inline void
1635netxen_clear_cmddesc(u64 *desc)
1636{
1bcfd790
DP		 1637 desc[0] = 0ULL;
1638 desc[2] = 0ULL;
d32cc3d2
DP		 1639}
1640
61357325 1641static netdev_tx_t
d32cc3d2 1642netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1643{
3176ff3e 1644 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1645 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1646 struct netxen_cmd_buffer *pbuf;
3d396eb1 1647 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1648 struct cmd_desc_type0 *hwdesc, *first_desc;
1649 struct pci_dev *pdev;
391587c3 1650 int i, k;
3d396eb1 1651
cb2107be 1652 u32 producer;
ce644ed4 1653 int frag_count, no_of_desc;
d877f1e3 1654 u32 num_txd = tx_ring->num_desc;
3d396eb1 1655
3d396eb1
AK		 1656 frag_count = skb_shinfo(skb)->nr_frags + 1;
1657
d877f1e3 1658 /* 4 fragments per cmd des */
3d396eb1 1659 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1660
cb2107be 1661 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
ba53e6b4 1662 netif_stop_queue(netdev);
ba53e6b4 1663 return NETDEV_TX_BUSY;
53a01e00 1664 }
3d396eb1 1665
cb2107be 1666 producer = tx_ring->producer;
ce644ed4 1667 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1668
1bcfd790 1669 pdev = adapter->pdev;
391587c3 1670
ce644ed4 1671 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1672 goto drop_packet;
391587c3 1673
3d396eb1 1674 pbuf->skb = skb;
3d396eb1 1675 pbuf->frag_count = frag_count;
6f703406 1676
1bcfd790
DP		 1677 first_desc = hwdesc = &tx_ring->desc_head[producer];
1678 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1679
ce644ed4
DP		 1680 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1681 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1682
ce644ed4 1683 for (i = 0; i < frag_count; i++) {
3d396eb1 1684
ce644ed4
DP		 1685 k = i % 4;
1686
1687 if ((k == 0) && (i > 0)) {
1688 /* move to next desc.*/
ba53e6b4 1689 producer = get_next_index(producer, num_txd);
d877f1e3 1690 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1691 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1692 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1693 }
3d396eb1 1694
ce644ed4 1695 buffrag = &pbuf->frag_array[i];
3d396eb1 1696
ce644ed4 1697 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1698 switch (k) {
1699 case 0:
ce644ed4 1700 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1701 break;
1702 case 1:
ce644ed4 1703 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1704 break;
1705 case 2:
ce644ed4 1706 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1707 break;
1708 case 3:
ce644ed4 1709 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1710 break;
1711 }
3d396eb1 1712 }
ce644ed4 1713
1bcfd790 1714 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1715
1bcfd790 1716 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1717
cb2107be 1718 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1719
1bcfd790 1720 adapter->stats.txbytes += skb->len;
ba53e6b4 1721 adapter->stats.xmitcalled++;
3d396eb1 1722
3d396eb1 1723 return NETDEV_TX_OK;
6f703406
DP		 1724
1725drop_packet:
1726 adapter->stats.txdropped++;
1727 dev_kfree_skb_any(skb);
1728 return NETDEV_TX_OK;
3d396eb1
AK		 1729}
1730
a97342f9
DP		 1731static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1732{
1733 struct net_device *netdev = adapter->netdev;
1734 uint32_t temp, temp_state, temp_val;
1735 int rv = 0;
1736
f98a9f69 1737 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1738
1739 temp_state = nx_get_temp_state(temp);
1740 temp_val = nx_get_temp_val(temp);
1741
1742 if (temp_state == NX_TEMP_PANIC) {
1743 printk(KERN_ALERT
1744 "%s: Device temperature %d degrees C exceeds"
1745 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1746 netdev->name, temp_val);
a97342f9
DP		 1747 rv = 1;
1748 } else if (temp_state == NX_TEMP_WARN) {
1749 if (adapter->temp == NX_TEMP_NORMAL) {
1750 printk(KERN_ALERT
1751 "%s: Device temperature %d degrees C "
1752 "exceeds operating range."
1753 " Immediate action needed.\n",
e4135c2d 1754 netdev->name, temp_val);
a97342f9
DP		 1755 }
1756 } else {
1757 if (adapter->temp == NX_TEMP_WARN) {
1758 printk(KERN_INFO
1759 "%s: Device temperature is now %d degrees C"
e4135c2d 1760 " in normal range.\n", netdev->name,
a97342f9
DP		 1761 temp_val);
1762 }
1763 }
1764 adapter->temp = temp_state;
1765 return rv;
1766}
1767
3bf26ce3 1768void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1769{
1770 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1771
1772 if (adapter->ahw.linkup && !linkup) {
1773 printk(KERN_INFO "%s: %s NIC Link is down\n",
1774 netxen_nic_driver_name, netdev->name);
1775 adapter->ahw.linkup = 0;
1776 if (netif_running(netdev)) {
1777 netif_carrier_off(netdev);
1778 netif_stop_queue(netdev);
1779 }
e424fa9d 1780 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1781 } else if (!adapter->ahw.linkup && linkup) {
1782 printk(KERN_INFO "%s: %s NIC Link is up\n",
1783 netxen_nic_driver_name, netdev->name);
1784 adapter->ahw.linkup = 1;
1785 if (netif_running(netdev)) {
1786 netif_carrier_on(netdev);
1787 netif_wake_queue(netdev);
1788 }
e424fa9d 1789 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1790 }
1791}
1792
3bf26ce3
DP		 1793static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1794{
1795 u32 val, port, linkup;
1796
1797 port = adapter->physical_port;
1798
1799 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1800 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1801 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1802 linkup = (val == XG_LINK_UP_P3);
1803 } else {
f98a9f69 1804 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1805 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1806 linkup = (val >> port) & 1;
1807 else {
1808 val = (val >> port*8) & 0xff;
1809 linkup = (val == XG_LINK_UP);
1810 }
1811 }
1812
1813 netxen_advert_link_change(adapter, linkup);
1814}
1815
3d396eb1
AK		 1816static void netxen_tx_timeout(struct net_device *netdev)
1817{
e424fa9d 1818 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1819
6a581e93
DP		 1820 if (test_bit(__NX_RESETTING, &adapter->state))
1821 return;
1822
f17443f4 1823 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1824 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1825}
1826
f17443f4 1827static void netxen_reset_task(struct work_struct *work)
3d396eb1 1828{
4790654c 1829 struct netxen_adapter *adapter =
3176ff3e 1830 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1831
b2af9cb0
DP		 1832 if (!netif_running(adapter->netdev))
1833 return;
1834
6a581e93
DP		 1835 if (test_bit(__NX_RESETTING, &adapter->state))
1836 return;
1837
d8b100c5 1838 netxen_napi_disable(adapter);
ba53e6b4 1839
6c80b18d 1840 adapter->netdev->trans_start = jiffies;
ba53e6b4 1841
d8b100c5 1842 netxen_napi_enable(adapter);
6c80b18d 1843 netif_wake_queue(adapter->netdev);
3d396eb1
AK		 1844}
1845
a97342f9
DP		 1846struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1847{
1848 struct netxen_adapter *adapter = netdev_priv(netdev);
1849 struct net_device_stats *stats = &adapter->net_stats;
1850
1851 memset(stats, 0, sizeof(*stats));
1852
1bb482f8 1853 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1854 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1855 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1856 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1857 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1858 stats->tx_dropped = adapter->stats.txdropped;
1859
1860 return stats;
1861}
1862
e4c93c81 1863static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1864{
d8b100c5
DP		 1865 struct nx_host_sds_ring *sds_ring = data;
1866 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1867 u32 status = 0;
1868
1869 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1870
1871 if (!(status & adapter->legacy_intr.int_vec_bit))
05aaa02d 1872 return IRQ_NONE;
e01872af 1873
d71e1be8
DP		 1874 if (adapter->ahw.revision_id >= NX_P3_B1) {
1875 /* check interrupt state machine, to be sure */
1876 status = adapter->pci_read_immediate(adapter,
1877 ISR_INT_STATE_REG);
1878 if (!ISR_LEGACY_INT_TRIGGERED(status))
1879 return IRQ_NONE;
1880
092bc571
DP		 1881 } else {
1882 unsigned long our_int = 0;
d71e1be8 1883
f98a9f69 1884 our_int = NXRD32(adapter, CRB_INT_VECTOR);
092bc571 1885
d71e1be8 1886 /* not our interrupt */
092bc571 1887 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1888 return IRQ_NONE;
1889
092bc571 1890 /* claim interrupt */
f98a9f69 1891 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
e01872af 1892 }
1893
092bc571 1894 /* clear interrupt */
4f96b988 1895 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
d8b100c5 1896 netxen_nic_disable_int(sds_ring);
092bc571
DP		 1897
1898 adapter->pci_write_immediate(adapter,
1899 adapter->legacy_intr.tgt_status_reg,
1900 0xffffffff);
1901 /* read twice to ensure write is flushed */
1902 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1903 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1904
d8b100c5 1905 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 1906
1907 return IRQ_HANDLED;
1908}
1909
e4c93c81 1910static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 1911{
d8b100c5
DP		 1912 struct nx_host_sds_ring *sds_ring = data;
1913 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 1914
092bc571
DP		 1915 /* clear interrupt */
1916 adapter->pci_write_immediate(adapter,
7a2469ce 1917 adapter->msi_tgt_status, 0xffffffff);
092bc571 1918
d8b100c5 1919 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 1920 return IRQ_HANDLED;
1921}
1922
b3df68f8
DP		 1923static irqreturn_t netxen_msix_intr(int irq, void *data)
1924{
d8b100c5 1925 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 1926
d8b100c5 1927 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 1928 return IRQ_HANDLED;
1929}
1930
bea3348e 1931static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 1932{
d8b100c5
DP		 1933 struct nx_host_sds_ring *sds_ring =
1934 container_of(napi, struct nx_host_sds_ring, napi);
1935
1936 struct netxen_adapter *adapter = sds_ring->adapter;
1937
05aaa02d 1938 int tx_complete;
bea3348e 1939 int work_done;
3d396eb1 1940
05aaa02d 1941 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 1942
d8b100c5 1943 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 1944
05aaa02d 1945 if ((work_done < budget) && tx_complete) {
d8b100c5 1946 napi_complete(&sds_ring->napi);
b2af9cb0
DP		 1947 if (netif_running(adapter->netdev))
1948 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 1949 }
1950
bea3348e 1951 return work_done;
3d396eb1
AK		 1952}
1953
1954#ifdef CONFIG_NET_POLL_CONTROLLER
1955static void netxen_nic_poll_controller(struct net_device *netdev)
1956{
3176ff3e 1957 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1958 disable_irq(adapter->irq);
1494a814 1959 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 1960 enable_irq(adapter->irq);
1961}
1962#endif
3d396eb1 1963
6a581e93
DP		 1964static int
1965nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
1966{
1967 int count;
1968 if (netxen_api_lock(adapter))
1969 return -EIO;
1970
1971 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1972
1973 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
1974
1975 netxen_api_unlock(adapter);
1976 return count;
1977}
1978
1979static int
1980nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
1981{
1982 int count;
1983 if (netxen_api_lock(adapter))
1984 return -EIO;
1985
1986 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1987 WARN_ON(count == 0);
1988
1989 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
1990
1991 if (count == 0)
1992 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
1993
1994 netxen_api_unlock(adapter);
1995 return count;
1996}
1997
1998static int
1999netxen_can_start_firmware(struct netxen_adapter *adapter)
2000{
2001 int count;
2002 int can_start = 0;
2003
2004 if (netxen_api_lock(adapter))
2005 return 0;
2006
2007 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2008
2009 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2010 count = 0;
2011
2012 if (count == 0) {
2013 can_start = 1;
2014 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2015 }
2016
2017 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2018
2019 netxen_api_unlock(adapter);
2020
2021 return can_start;
2022}
2023
2024static void
2025netxen_schedule_work(struct netxen_adapter *adapter,
2026 work_func_t func, int delay)
2027{
2028 INIT_DELAYED_WORK(&adapter->fw_work, func);
2029 schedule_delayed_work(&adapter->fw_work, delay);
2030}
2031
2032static void
2033netxen_cancel_fw_work(struct netxen_adapter *adapter)
2034{
2035 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2036 msleep(10);
2037
2038 cancel_delayed_work_sync(&adapter->fw_work);
2039}
2040
2041static void
2042netxen_attach_work(struct work_struct *work)
2043{
2044 struct netxen_adapter *adapter = container_of(work,
2045 struct netxen_adapter, fw_work.work);
2046 struct net_device *netdev = adapter->netdev;
2047 int err = 0;
2048
2049 if (netif_running(netdev)) {
2050 err = netxen_nic_attach(adapter);
2051 if (err)
2052 goto done;
2053
2054 err = netxen_nic_up(adapter, netdev);
2055 if (err) {
2056 netxen_nic_detach(adapter);
2057 goto done;
2058 }
2059
2060 }
2061
2062 netif_device_attach(netdev);
2063
2064done:
2065 adapter->fw_fail_cnt = 0;
2066 clear_bit(__NX_RESETTING, &adapter->state);
2067 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2068}
2069
2070static void
2071netxen_fwinit_work(struct work_struct *work)
2072{
2073 struct netxen_adapter *adapter = container_of(work,
2074 struct netxen_adapter, fw_work.work);
2075 int dev_state;
2076
2077 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2078
2079 switch (dev_state) {
2080 case NX_DEV_COLD:
2081 case NX_DEV_READY:
2082 netxen_start_firmware(adapter);
2083 netxen_schedule_work(adapter, netxen_attach_work, 0);
2084 return;
2085
2086 case NX_DEV_INITALIZING:
2087 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2088 netxen_schedule_work(adapter,
2089 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2090 return;
2091 }
2092 break;
2093
2094 case NX_DEV_FAILED:
2095 default:
2096 break;
2097 }
2098
2099 nx_incr_dev_ref_cnt(adapter);
2100 clear_bit(__NX_RESETTING, &adapter->state);
2101}
2102
2103static void
2104netxen_detach_work(struct work_struct *work)
2105{
2106 struct netxen_adapter *adapter = container_of(work,
2107 struct netxen_adapter, fw_work.work);
2108 struct net_device *netdev = adapter->netdev;
2109 int ref_cnt, delay;
2110 u32 status;
2111
2112 netif_device_detach(netdev);
2113
2114 if (netif_running(netdev))
2115 netxen_nic_down(adapter, netdev);
2116
2117 netxen_nic_detach(adapter);
2118
2119 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2120
2121 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2122
2123 if (status & NX_RCODE_FATAL_ERROR)
2124 return;
2125
2126 if (adapter->temp == NX_TEMP_PANIC)
2127 return;
2128
2129 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2130
2131 adapter->fw_wait_cnt = 0;
2132 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2133}
2134
2135static int
2136netxen_check_health(struct netxen_adapter *adapter)
2137{
2138 u32 state, heartbit;
2139 struct net_device *netdev = adapter->netdev;
2140
2141 if (netxen_nic_check_temp(adapter))
2142 goto detach;
2143
2144 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2145 if (state == NX_DEV_NEED_RESET)
2146 goto detach;
2147
2148 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2149 return 0;
2150
2151 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2152 if (heartbit != adapter->heartbit) {
2153 adapter->heartbit = heartbit;
2154 adapter->fw_fail_cnt = 0;
2155 return 0;
2156 }
2157
2158 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2159 return 0;
2160
2161 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2162
2163 dev_info(&netdev->dev, "firmware hang detected\n");
2164
2165detach:
2166 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2167 netxen_schedule_work(adapter, netxen_detach_work, 0);
2168 return 1;
2169}
2170
2171static void
2172netxen_fw_poll_work(struct work_struct *work)
2173{
2174 struct netxen_adapter *adapter = container_of(work,
2175 struct netxen_adapter, fw_work.work);
2176
2177 if (test_bit(__NX_RESETTING, &adapter->state))
2178 goto reschedule;
2179
2180 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2181 if (!adapter->has_link_events) {
2182
2183 netxen_nic_handle_phy_intr(adapter);
2184
2185 if (adapter->link_changed)
2186 netxen_nic_set_link_parameters(adapter);
2187 }
2188 }
2189
2190 if (netxen_check_health(adapter))
2191 return;
2192
2193reschedule:
2194 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2195}
2196
fa3ce355
NK		 2197static ssize_t
2198netxen_store_bridged_mode(struct device *dev,
2199 struct device_attribute *attr, const char *buf, size_t len)
2200{
2201 struct net_device *net = to_net_dev(dev);
2202 struct netxen_adapter *adapter = netdev_priv(net);
2203 unsigned long new;
2204 int ret = -EINVAL;
2205
2206 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2207 goto err_out;
2208
2209 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2210 goto err_out;
2211
2212 if (strict_strtoul(buf, 2, &new))
2213 goto err_out;
2214
2215 if (!netxen_config_bridged_mode(adapter, !!new))
2216 ret = len;
2217
2218err_out:
2219 return ret;
2220}
2221
2222static ssize_t
2223netxen_show_bridged_mode(struct device *dev,
2224 struct device_attribute *attr, char *buf)
2225{
2226 struct net_device *net = to_net_dev(dev);
2227 struct netxen_adapter *adapter;
2228 int bridged_mode = 0;
2229
2230 adapter = netdev_priv(net);
2231
2232 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2233 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2234
2235 return sprintf(buf, "%d\n", bridged_mode);
2236}
2237
2238static struct device_attribute dev_attr_bridged_mode = {
2239 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2240 .show = netxen_show_bridged_mode,
2241 .store = netxen_store_bridged_mode,
2242};
2243
2244static void
2245netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2246{
2247 struct net_device *netdev = adapter->netdev;
2248 struct device *dev = &netdev->dev;
2249
2250 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2251 /* bridged_mode control */
2252 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2253 dev_warn(&netdev->dev,
2254 "failed to create bridged_mode sysfs entry\n");
2255 }
2256 }
2257}
2258
2259static void
2260netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2261{
2262 struct net_device *netdev = adapter->netdev;
2263 struct device *dev = &netdev->dev;
2264
2265 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2266 device_remove_file(dev, &dev_attr_bridged_mode);
2267}
2268
044824d9
DP		 2269#ifdef CONFIG_INET
2270
6598b169
DP		 2271#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2272
2273static int
2274netxen_destip_supported(struct netxen_adapter *adapter)
2275{
2276 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2277 return 0;
2278
2279 if (adapter->ahw.cut_through)
2280 return 0;
2281
2282 return 1;
2283}
2284
2285static int netxen_netdev_event(struct notifier_block *this,
2286 unsigned long event, void *ptr)
2287{
2288 struct netxen_adapter *adapter;
2289 struct net_device *dev = (struct net_device *)ptr;
2290 struct in_device *indev;
2291
2292recheck:
2293 if (dev == NULL)
2294 goto done;
2295
2296 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2297 dev = vlan_dev_real_dev(dev);
2298 goto recheck;
2299 }
2300
2301 if (!is_netxen_netdev(dev))
2302 goto done;
2303
2304 adapter = netdev_priv(dev);
2305
2306 if (!adapter || !netxen_destip_supported(adapter))
2307 goto done;
2308
2309 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2310 goto done;
2311
2312 indev = in_dev_get(dev);
2313 if (!indev)
2314 goto done;
2315
2316 for_ifa(indev) {
2317 switch (event) {
2318 case NETDEV_UP:
2319 netxen_config_ipaddr(adapter,
2320 ifa->ifa_address, NX_IP_UP);
2321 break;
2322 case NETDEV_DOWN:
2323 netxen_config_ipaddr(adapter,
2324 ifa->ifa_address, NX_IP_DOWN);
2325 break;
2326 default:
2327 break;
2328 }
2329 } endfor_ifa(indev);
2330
2331 in_dev_put(indev);
2332done:
2333 return NOTIFY_DONE;
2334}
2335
2336static int
2337netxen_inetaddr_event(struct notifier_block *this,
2338 unsigned long event, void *ptr)
2339{
2340 struct netxen_adapter *adapter;
2341 struct net_device *dev;
2342
2343 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2344
2345 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2346
2347recheck:
2348 if (dev == NULL || !netif_running(dev))
2349 goto done;
2350
2351 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2352 dev = vlan_dev_real_dev(dev);
2353 goto recheck;
2354 }
2355
2356 if (!is_netxen_netdev(dev))
2357 goto done;
2358
2359 adapter = netdev_priv(dev);
2360
2361 if (!adapter || !netxen_destip_supported(adapter))
2362 goto done;
2363
2364 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2365 goto done;
2366
2367 switch (event) {
2368 case NETDEV_UP:
2369 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2370 break;
2371 case NETDEV_DOWN:
2372 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2373 break;
2374 default:
2375 break;
2376 }
2377
2378done:
2379 return NOTIFY_DONE;
2380}
2381
2382static struct notifier_block netxen_netdev_cb = {
2383 .notifier_call = netxen_netdev_event,
2384};
2385
2386static struct notifier_block netxen_inetaddr_cb = {
2387 .notifier_call = netxen_inetaddr_event,
2388};
044824d9 2389#endif
6598b169 2390
3d396eb1
AK		 2391static struct pci_driver netxen_driver = {
2392 .name = netxen_nic_driver_name,
2393 .id_table = netxen_pci_tbl,
2394 .probe = netxen_nic_probe,
0b72e659 2395 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2396#ifdef CONFIG_PM
0b72e659 2397 .suspend = netxen_nic_suspend,
22b5794b 2398 .resume = netxen_nic_resume,
01542cd1 2399#endif
22b5794b 2400 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2401};
2402
3d396eb1
AK		 2403static int __init netxen_init_module(void)
2404{
ff4fbd43
DP		 2405 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2406
044824d9 2407#ifdef CONFIG_INET
6598b169
DP		 2408 register_netdevice_notifier(&netxen_netdev_cb);
2409 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2410#endif
6598b169 2411
184231bd 2412 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2413}
2414
2415module_init(netxen_init_module);
2416
2417static void __exit netxen_exit_module(void)
2418{
3d396eb1 2419 pci_unregister_driver(&netxen_driver);
6598b169 2420
044824d9 2421#ifdef CONFIG_INET
6598b169
DP		 2422 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2423 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2424#endif
3d396eb1
AK		 2425}
2426
2427module_exit(netxen_exit_module);
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