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netxen: fix ip addr hashing after firmware reset
[linux-2.6-block.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 88
d0725e4d
AKS		 89static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
90
3d396eb1 91/* PCI Device ID Table */
70081ac5 92#define ENTRY(device) \
040dec3b 93 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 94 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
95
3d396eb1 96static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 97 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
98 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
99 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
100 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
101 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
102 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
103 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
104 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 105 {0,}
106};
107
108MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
109
7830b22c
DP		 110static uint32_t crb_cmd_producer[4] = {
111 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
112 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
113};
114
c9fc891f 115void
3ce06a32 116netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 117 struct nx_host_tx_ring *tx_ring)
3176ff3e 118{
cb2107be
DP		 119 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
120
121 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
122 netif_stop_queue(adapter->netdev);
123 smp_mb();
124 }
3176ff3e
MT		 125}
126
7830b22c
DP		 127static uint32_t crb_cmd_consumer[4] = {
128 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
129 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
130};
131
3ce06a32
DP		 132static inline void
133netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 134 struct nx_host_tx_ring *tx_ring)
3176ff3e 135{
cb2107be 136 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 137}
138
2956640d 139static uint32_t msi_tgt_status[8] = {
443be796 140 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 141 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
142 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
143 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 144};
145
2956640d
DP		 146static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
147
d8b100c5 148static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 149{
d8b100c5
DP		 150 struct netxen_adapter *adapter = sds_ring->adapter;
151
f98a9f69 152 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 153}
154
d8b100c5 155static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 156{
d8b100c5
DP		 157 struct netxen_adapter *adapter = sds_ring->adapter;
158
f98a9f69 159 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 160
092bc571
DP		 161 if (!NETXEN_IS_MSI_FAMILY(adapter))
162 adapter->pci_write_immediate(adapter,
163 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
4638aef1
SH		 164}
165
71dcddbd
DP		 166static int
167netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
168{
169 int size = sizeof(struct nx_host_sds_ring) * count;
170
171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
172
173 return (recv_ctx->sds_rings == NULL);
174}
175
d8b100c5 176static void
71dcddbd
DP		 177netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
178{
179 if (recv_ctx->sds_rings != NULL)
180 kfree(recv_ctx->sds_rings);
232e7d68
DP		 181
182 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 183}
184
185static int
d8b100c5
DP		 186netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
187{
188 int ring;
189 struct nx_host_sds_ring *sds_ring;
190 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
191
71dcddbd 192 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 193 return -ENOMEM;
71dcddbd 194
d8b100c5
DP		 195 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
196 sds_ring = &recv_ctx->sds_rings[ring];
197 netif_napi_add(netdev, &sds_ring->napi,
198 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
199 }
71dcddbd
DP		 200
201 return 0;
d8b100c5
DP		 202}
203
232e7d68
DP		 204static void
205netxen_napi_del(struct netxen_adapter *adapter)
206{
207 int ring;
208 struct nx_host_sds_ring *sds_ring;
209 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 netxen_free_sds_rings(&adapter->recv_ctx);
217}
218
d8b100c5
DP		 219static void
220netxen_napi_enable(struct netxen_adapter *adapter)
221{
222 int ring;
223 struct nx_host_sds_ring *sds_ring;
224 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
225
226 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
227 sds_ring = &recv_ctx->sds_rings[ring];
228 napi_enable(&sds_ring->napi);
229 netxen_nic_enable_int(sds_ring);
230 }
231}
232
233static void
234netxen_napi_disable(struct netxen_adapter *adapter)
235{
236 int ring;
237 struct nx_host_sds_ring *sds_ring;
238 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
239
240 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
241 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 242 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 243 napi_synchronize(&sds_ring->napi);
244 napi_disable(&sds_ring->napi);
d8b100c5
DP		 245 }
246}
247
50c643e7 248static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 249{
250 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 251 uint64_t mask, cmask;
252
253 adapter->pci_using_dac = 0;
2956640d 254
6afd142f 255 mask = DMA_BIT_MASK(32);
6afd142f 256 cmask = DMA_BIT_MASK(32);
1f434f63 257
50c643e7 258 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 259#ifndef CONFIG_IA64
6afd142f 260 mask = DMA_BIT_MASK(35);
1f434f63 261#endif
50c643e7
DP		 262 } else {
263 mask = DMA_BIT_MASK(39);
264 cmask = mask;
265 }
266
2956640d 267 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 268 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 269 adapter->pci_using_dac = 1;
270 return 0;
271 }
2956640d 272
1f434f63
DP		 273 return -EIO;
274}
275
276/* Update addressable range if firmware supports it */
277static int
278nx_update_dma_mask(struct netxen_adapter *adapter)
279{
280 int change, shift, err;
50c643e7 281 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 282 struct pci_dev *pdev = adapter->pdev;
283
284 change = 0;
285
f98a9f69 286 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 287 if (shift > 32)
1f434f63
DP		 288 return 0;
289
290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
291 change = 1;
292 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
293 change = 1;
294
295 if (change) {
296 old_mask = pdev->dma_mask;
50c643e7
DP		 297 old_cmask = pdev->dev.coherent_dma_mask;
298
f60f7856 299 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 300
301 err = pci_set_dma_mask(pdev, mask);
302 if (err)
50c643e7
DP		 303 goto err_out;
304
305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
306
307 err = pci_set_consistent_dma_mask(pdev, mask);
308 if (err)
309 goto err_out;
310 }
311 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 312 }
313
2956640d 314 return 0;
50c643e7
DP		 315
316err_out:
317 pci_set_dma_mask(pdev, old_mask);
318 pci_set_consistent_dma_mask(pdev, old_cmask);
319 return err;
2956640d
DP		 320}
321
24767ab1
DP		 322static void
323netxen_check_options(struct netxen_adapter *adapter)
2956640d 324{
24767ab1
DP		 325 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
326 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
327 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
328 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
329 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
330 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
331 }
2956640d 332
f6d21f44
DP		 333 adapter->msix_supported = 0;
334 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
c7860a2a 335 adapter->msix_supported = !!use_msi_x;
f6d21f44
DP		 336 adapter->rss_supported = !!use_msi_x;
337 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
338 switch (adapter->ahw.board_type) {
339 case NETXEN_BRDTYPE_P2_SB31_10G:
340 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
f6d21f44
DP		 341 adapter->msix_supported = !!use_msi_x;
342 adapter->rss_supported = !!use_msi_x;
343 break;
344 default:
345 break;
346 }
347 }
2956640d 348
24767ab1 349 adapter->num_txd = MAX_CMD_DESCRIPTORS;
2956640d 350
24767ab1
DP		 351 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
352 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
353 adapter->max_rds_rings = 3;
354 } else {
355 adapter->num_lro_rxd = 0;
356 adapter->max_rds_rings = 2;
357 }
2956640d
DP		 358}
359
360static int
361netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
362{
27c915a4 363 u32 val, timeout;
2956640d
DP		 364
365 if (first_boot == 0x55555555) {
366 /* This is the first boot after power up */
f98a9f69 367 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 368
369 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
370 return 0;
2956640d
DP		 371
372 /* PCI bus master workaround */
f98a9f69 373 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 374 if (!(first_boot & 0x4)) {
375 first_boot |= 0x4;
f98a9f69
DP		 376 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
377 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 378 }
379
380 /* This is the first boot after power up */
f98a9f69 381 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 382 if (first_boot != 0x80000f) {
383 /* clear the register for future unloads/loads */
f98a9f69 384 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 385 return -EIO;
2956640d
DP		 386 }
387
27c915a4 388 /* Start P2 boot loader */
f98a9f69
DP		 389 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
390 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 391 timeout = 0;
392 do {
393 msleep(1);
f98a9f69 394 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 395
396 if (++timeout > 5000)
397 return -EIO;
398
399 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 400 }
27c915a4 401 return 0;
2956640d
DP		 402}
403
404static void netxen_set_port_mode(struct netxen_adapter *adapter)
405{
406 u32 val, data;
407
1e2d0059 408 val = adapter->ahw.board_type;
2956640d
DP		 409 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
410 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
411 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
412 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 413 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 414 } else if (port_mode == NETXEN_PORT_MODE_XG) {
415 data = NETXEN_PORT_MODE_XG;
f98a9f69 416 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 417 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
418 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 419 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 420 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
421 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 422 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 423 } else {
424 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 425 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 426 }
427
428 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
429 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
430 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
431 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
432 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
433 }
f98a9f69 434 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 435 }
436}
437
2956640d
DP		 438static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
439{
440 u32 control;
441 int pos;
442
443 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
444 if (pos) {
445 pci_read_config_dword(pdev, pos, &control);
446 if (enable)
447 control |= PCI_MSIX_FLAGS_ENABLE;
448 else
449 control = 0;
450 pci_write_config_dword(pdev, pos, control);
451 }
452}
453
be339aee 454static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 455{
456 int i;
457
be339aee 458 for (i = 0; i < count; i++)
2956640d
DP		 459 adapter->msix_entries[i].entry = i;
460}
461
9dc28efe
DP		 462static int
463netxen_read_mac_addr(struct netxen_adapter *adapter)
464{
465 int i;
466 unsigned char *p;
467 __le64 mac_addr;
9dc28efe
DP		 468 struct net_device *netdev = adapter->netdev;
469 struct pci_dev *pdev = adapter->pdev;
470
9dc28efe
DP		 471 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
472 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
473 return -EIO;
474 } else {
475 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
476 return -EIO;
477 }
478
479 p = (unsigned char *)&mac_addr;
480 for (i = 0; i < 6; i++)
481 netdev->dev_addr[i] = *(p + 5 - i);
482
483 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
484
485 /* set station address */
486
e174961c
JB		 487 if (!is_valid_ether_addr(netdev->perm_addr))
488 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 489
490 return 0;
491}
492
3d0a3cc9
DP		 493int netxen_nic_set_mac(struct net_device *netdev, void *p)
494{
495 struct netxen_adapter *adapter = netdev_priv(netdev);
496 struct sockaddr *addr = p;
497
498 if (!is_valid_ether_addr(addr->sa_data))
499 return -EINVAL;
500
501 if (netif_running(netdev)) {
502 netif_device_detach(netdev);
503 netxen_napi_disable(adapter);
504 }
505
506 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
507 adapter->macaddr_set(adapter, addr->sa_data);
508
509 if (netif_running(netdev)) {
510 netif_device_attach(netdev);
511 netxen_napi_enable(adapter);
512 }
513 return 0;
514}
515
1abd266f
SH		 516static void netxen_set_multicast_list(struct net_device *dev)
517{
518 struct netxen_adapter *adapter = netdev_priv(dev);
519
3d0a3cc9 520 adapter->set_multi(dev);
1abd266f
SH		 521}
522
523static const struct net_device_ops netxen_netdev_ops = {
524 .ndo_open = netxen_nic_open,
525 .ndo_stop = netxen_nic_close,
526 .ndo_start_xmit = netxen_nic_xmit_frame,
527 .ndo_get_stats = netxen_nic_get_stats,
528 .ndo_validate_addr = eth_validate_addr,
529 .ndo_set_multicast_list = netxen_set_multicast_list,
530 .ndo_set_mac_address = netxen_nic_set_mac,
531 .ndo_change_mtu = netxen_nic_change_mtu,
532 .ndo_tx_timeout = netxen_tx_timeout,
533#ifdef CONFIG_NET_POLL_CONTROLLER
534 .ndo_poll_controller = netxen_nic_poll_controller,
535#endif
536};
537
97daee83
DP		 538static void
539netxen_setup_intr(struct netxen_adapter *adapter)
540{
541 struct netxen_legacy_intr_set *legacy_intrp;
542 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 543 int err, num_msix;
544
545 if (adapter->rss_supported) {
546 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
547 MSIX_ENTRIES_PER_ADAPTER : 2;
548 } else
549 num_msix = 1;
550
551 adapter->max_sds_rings = 1;
97daee83
DP		 552
553 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 554
555 if (adapter->ahw.revision_id >= NX_P3_B0)
556 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
557 else
558 legacy_intrp = &legacy_intr[0];
559 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
560 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
561 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
562 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
563
564 netxen_set_msix_bit(pdev, 0);
565
566 if (adapter->msix_supported) {
567
be339aee
DP		 568 netxen_init_msix_entries(adapter, num_msix);
569 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
570 if (err == 0) {
571 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
572 netxen_set_msix_bit(pdev, 1);
97daee83 573
be339aee
DP		 574 if (adapter->rss_supported)
575 adapter->max_sds_rings = num_msix;
97daee83 576
be339aee
DP		 577 dev_info(&pdev->dev, "using msi-x interrupts\n");
578 return;
579 }
580
581 if (err > 0)
582 pci_disable_msix(pdev);
583
584 /* fall through for msi */
97daee83 585 }
be339aee
DP		 586
587 if (use_msi && !pci_enable_msi(pdev)) {
588 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
589 adapter->msi_tgt_status =
590 msi_tgt_status[adapter->ahw.pci_func];
591 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 592 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 593 return;
594 }
595
596 dev_info(&pdev->dev, "using legacy interrupts\n");
597 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 598}
599
600static void
601netxen_teardown_intr(struct netxen_adapter *adapter)
602{
603 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
604 pci_disable_msix(adapter->pdev);
605 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
606 pci_disable_msi(adapter->pdev);
607}
608
609static void
610netxen_cleanup_pci_map(struct netxen_adapter *adapter)
611{
612 if (adapter->ahw.db_base != NULL)
613 iounmap(adapter->ahw.db_base);
614 if (adapter->ahw.pci_base0 != NULL)
615 iounmap(adapter->ahw.pci_base0);
616 if (adapter->ahw.pci_base1 != NULL)
617 iounmap(adapter->ahw.pci_base1);
618 if (adapter->ahw.pci_base2 != NULL)
619 iounmap(adapter->ahw.pci_base2);
620}
621
622static int
623netxen_setup_pci_map(struct netxen_adapter *adapter)
624{
625 void __iomem *mem_ptr0 = NULL;
626 void __iomem *mem_ptr1 = NULL;
627 void __iomem *mem_ptr2 = NULL;
628 void __iomem *db_ptr = NULL;
629
97daee83
DP		 630 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
631
632 struct pci_dev *pdev = adapter->pdev;
633 int pci_func = adapter->ahw.pci_func;
634
635 int err = 0;
636
637 /*
638 * Set the CRB window to invalid. If any register in window 0 is
639 * accessed it should set the window to 0 and then reset it to 1.
640 */
641 adapter->curr_window = 255;
642 adapter->ahw.qdr_sn_window = -1;
643 adapter->ahw.ddr_mn_window = -1;
644
645 /* remap phys address */
646 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
647 mem_len = pci_resource_len(pdev, 0);
648 pci_len0 = 0;
649
650 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
651 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
652 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
653 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
97daee83
DP		 654 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
655 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
656 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
657
658 /* 128 Meg of memory */
659 if (mem_len == NETXEN_PCI_128MB_SIZE) {
660 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
661 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
662 SECOND_PAGE_GROUP_SIZE);
663 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
664 THIRD_PAGE_GROUP_SIZE);
97daee83
DP		 665 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
666 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
667 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
668 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83
DP		 669 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
670 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
671 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
672 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
673 adapter->pci_write_immediate =
674 netxen_nic_pci_write_immediate_2M;
97daee83
DP		 675 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
676 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
677 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
678
679 mem_ptr0 = pci_ioremap_bar(pdev, 0);
680 if (mem_ptr0 == NULL) {
681 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
682 return -EIO;
683 }
684 pci_len0 = mem_len;
97daee83
DP		 685
686 adapter->ahw.ddr_mn_window = 0;
687 adapter->ahw.qdr_sn_window = 0;
688
689 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
690 (pci_func * 0x20);
691 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
692 if (pci_func < 4)
693 adapter->ahw.ms_win_crb += (pci_func * 0x20);
694 else
695 adapter->ahw.ms_win_crb +=
696 0xA0 + ((pci_func - 4) * 0x10);
697 } else {
698 return -EIO;
699 }
700
701 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
702
703 adapter->ahw.pci_base0 = mem_ptr0;
704 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 705 adapter->ahw.pci_base1 = mem_ptr1;
706 adapter->ahw.pci_base2 = mem_ptr2;
707
708 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
709 goto skip_doorbell;
710
711 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
712 db_len = pci_resource_len(pdev, 4);
713
714 if (db_len == 0) {
715 printk(KERN_ERR "%s: doorbell is disabled\n",
716 netxen_nic_driver_name);
717 err = -EIO;
718 goto err_out;
719 }
720
721 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
722 if (!db_ptr) {
723 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
724 netxen_nic_driver_name);
725 err = -EIO;
726 goto err_out;
727 }
728
729skip_doorbell:
730 adapter->ahw.db_base = db_ptr;
731 adapter->ahw.db_len = db_len;
732 return 0;
733
734err_out:
735 netxen_cleanup_pci_map(adapter);
736 return err;
737}
738
ba599d4f 739static int
6a581e93 740netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 741{
742 int val, err, first_boot;
743 struct pci_dev *pdev = adapter->pdev;
744
6a581e93 745 if (!netxen_can_start_firmware(adapter))
96f2ebd2 746 goto wait_init;
0b72e659 747
f98a9f69 748 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 749
750 err = netxen_check_hw_init(adapter, first_boot);
751 if (err) {
752 dev_err(&pdev->dev, "error in init HW init sequence\n");
753 return err;
754 }
755
6a581e93 756 netxen_request_firmware(adapter);
f7185c71 757
67c38fc6 758 err = netxen_need_fw_reset(adapter);
1dbc84a7 759 if (err < 0)
db4cfd8a 760 goto err_out;
1dbc84a7
DP		 761 if (err == 0)
762 goto wait_init;
67c38fc6 763
ba599d4f 764 if (first_boot != 0x55555555) {
f98a9f69 765 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
ba599d4f
DP		 766 netxen_pinit_from_rom(adapter, 0);
767 msleep(1);
768 }
567c6c4e 769
f98a9f69 770 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 771 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
772 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
773
567c6c4e
DP		 774 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
775 netxen_set_port_mode(adapter);
776
db4cfd8a
DP		 777 err = netxen_load_firmware(adapter);
778 if (err)
779 goto err_out;
ba599d4f 780
6a581e93
DP		 781 netxen_release_firmware(adapter);
782
ba599d4f
DP		 783 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
784
785 /* Initialize multicast addr pool owners */
786 val = 0x7654;
1e2d0059 787 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 788 val |= 0x0f000000;
f98a9f69 789 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 790
791 }
792
83ac51fa 793 err = netxen_init_dummy_dma(adapter);
ba599d4f 794 if (err)
db4cfd8a 795 goto err_out;
ba599d4f
DP		 796
797 /*
798 * Tell the hardware our version number.
799 */
800 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
801 | ((_NETXEN_NIC_LINUX_MINOR << 8))
802 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 803 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 804
6a581e93
DP		 805 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
806
96f2ebd2 807wait_init:
ba599d4f
DP		 808 /* Handshake with the card before we register the devices. */
809 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
810 if (err) {
83ac51fa 811 netxen_free_dummy_dma(adapter);
db4cfd8a 812 goto err_out;
ba599d4f
DP		 813 }
814
68b3cae0
DP		 815 nx_update_dma_mask(adapter);
816
817 netxen_nic_get_firmware_info(adapter);
6a581e93 818 netxen_check_options(adapter);
68b3cae0 819
ba599d4f 820 return 0;
db4cfd8a
DP		 821
822err_out:
823 netxen_release_firmware(adapter);
824 return err;
ba599d4f
DP		 825}
826
9f5bc7f1
DP		 827static int
828netxen_nic_request_irq(struct netxen_adapter *adapter)
829{
830 irq_handler_t handler;
d8b100c5
DP		 831 struct nx_host_sds_ring *sds_ring;
832 int err, ring;
833
9f5bc7f1
DP		 834 unsigned long flags = IRQF_SAMPLE_RANDOM;
835 struct net_device *netdev = adapter->netdev;
d8b100c5 836 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 837
9f5bc7f1
DP		 838 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
839 handler = netxen_msix_intr;
840 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
841 handler = netxen_msi_intr;
842 else {
843 flags |= IRQF_SHARED;
844 handler = netxen_intr;
845 }
846 adapter->irq = netdev->irq;
847
d8b100c5
DP		 848 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
849 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 850 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 851 err = request_irq(sds_ring->irq, handler,
852 flags, sds_ring->name, sds_ring);
853 if (err)
854 return err;
855 }
856
857 return 0;
858}
859
860static void
861netxen_nic_free_irq(struct netxen_adapter *adapter)
862{
863 int ring;
864 struct nx_host_sds_ring *sds_ring;
865
866 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
867
868 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
869 sds_ring = &recv_ctx->sds_rings[ring];
870 free_irq(sds_ring->irq, sds_ring);
871 }
9f5bc7f1
DP		 872}
873
ca2ef330
DP		 874static void
875netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
876{
877 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
878 adapter->coal.normal.data.rx_time_us =
879 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
880 adapter->coal.normal.data.rx_packets =
881 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
882 adapter->coal.normal.data.tx_time_us =
883 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
884 adapter->coal.normal.data.tx_packets =
885 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
886}
887
9f5bc7f1
DP		 888static int
889netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
890{
891 int err;
892
db4cfd8a
DP		 893 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
894 return -EIO;
895
9f5bc7f1
DP		 896 err = adapter->init_port(adapter, adapter->physical_port);
897 if (err) {
898 printk(KERN_ERR "%s: Failed to initialize port %d\n",
899 netxen_nic_driver_name, adapter->portnum);
900 return err;
901 }
3d0a3cc9
DP		 902 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
903 adapter->macaddr_set(adapter, netdev->dev_addr);
9f5bc7f1 904
3d0a3cc9
DP		 905 adapter->set_multi(netdev);
906 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 907
908 adapter->ahw.linkup = 0;
9f5bc7f1 909
d8b100c5
DP		 910 if (adapter->max_sds_rings > 1)
911 netxen_config_rss(adapter, 1);
9f5bc7f1 912
ca2ef330
DP		 913 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
914 netxen_config_intr_coalesce(adapter);
915
1bb482f8
NK		 916 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
917 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
918
b2af9cb0
DP		 919 netxen_napi_enable(adapter);
920
5103c9f7 921 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 922 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 923 else
924 netxen_nic_set_link_parameters(adapter);
925
6a581e93 926 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 927 return 0;
928}
929
930static void
931netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
932{
db4cfd8a
DP		 933 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
934 return;
935
6a581e93
DP		 936 clear_bit(__NX_DEV_UP, &adapter->state);
937
b2af9cb0 938 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 939 netif_carrier_off(netdev);
b2af9cb0 940 netif_tx_disable(netdev);
9f5bc7f1
DP		 941
942 if (adapter->stop_port)
943 adapter->stop_port(adapter);
944
5cf4d323
DP		 945 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
946 netxen_p3_free_mac_list(adapter);
947
22b5794b
AKS		 948 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
949
be339aee
DP		 950 netxen_napi_disable(adapter);
951
9f5bc7f1 952 netxen_release_tx_buffers(adapter);
b2af9cb0 953 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 954}
955
956
957static int
958netxen_nic_attach(struct netxen_adapter *adapter)
959{
960 struct net_device *netdev = adapter->netdev;
961 struct pci_dev *pdev = adapter->pdev;
becf46a0 962 int err, ring;
d8b100c5 963 struct nx_host_rds_ring *rds_ring;
d877f1e3 964 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 965
7042cd8f
AKS		 966 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
967 return 0;
968
9f5bc7f1 969 err = netxen_init_firmware(adapter);
232e7d68
DP		 970 if (err)
971 return err;
972
973 err = netxen_napi_add(adapter, netdev);
974 if (err)
975 return err;
9f5bc7f1 976
9f5bc7f1
DP		 977 err = netxen_alloc_sw_resources(adapter);
978 if (err) {
979 printk(KERN_ERR "%s: Error in setting sw resources\n",
980 netdev->name);
981 return err;
982 }
983
9f5bc7f1
DP		 984 err = netxen_alloc_hw_resources(adapter);
985 if (err) {
986 printk(KERN_ERR "%s: Error in setting hw resources\n",
987 netdev->name);
988 goto err_out_free_sw;
989 }
990
4f96b988 991 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 992 tx_ring = adapter->tx_ring;
d877f1e3
DP		 993 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
994 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
9f5bc7f1 995
cb2107be
DP		 996 tx_ring->producer = 0;
997 tx_ring->sw_consumer = 0;
998
999 netxen_nic_update_cmd_producer(adapter, tx_ring);
1000 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1001 }
1002
d8b100c5
DP		 1003 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1004 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1005 netxen_post_rx_buffers(adapter, ring, rds_ring);
1006 }
9f5bc7f1
DP		 1007
1008 err = netxen_nic_request_irq(adapter);
1009 if (err) {
1010 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1011 netdev->name);
1012 goto err_out_free_rxbuf;
1013 }
1014
ca2ef330
DP		 1015 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1016 netxen_nic_init_coalesce_defaults(adapter);
1017
fa3ce355
NK		 1018 netxen_create_sysfs_entries(adapter);
1019
9f5bc7f1
DP		 1020 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1021 return 0;
1022
1023err_out_free_rxbuf:
1024 netxen_release_rx_buffers(adapter);
1025 netxen_free_hw_resources(adapter);
1026err_out_free_sw:
1027 netxen_free_sw_resources(adapter);
1028 return err;
1029}
1030
1031static void
1032netxen_nic_detach(struct netxen_adapter *adapter)
1033{
7042cd8f
AKS		 1034 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1035 return;
1036
fa3ce355
NK		 1037 netxen_remove_sysfs_entries(adapter);
1038
9f5bc7f1 1039 netxen_free_hw_resources(adapter);
cf981ffb 1040 netxen_release_rx_buffers(adapter);
be339aee 1041 netxen_nic_free_irq(adapter);
232e7d68 1042 netxen_napi_del(adapter);
9f5bc7f1
DP		 1043 netxen_free_sw_resources(adapter);
1044
1045 adapter->is_up = 0;
1046}
1047
7042cd8f
AKS		 1048int
1049netxen_nic_reset_context(struct netxen_adapter *adapter)
1050{
1051 int err = 0;
1052 struct net_device *netdev = adapter->netdev;
1053
6a581e93
DP		 1054 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1055 return -EBUSY;
1056
7042cd8f
AKS		 1057 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1058
6a581e93
DP		 1059 netif_device_detach(netdev);
1060
7042cd8f
AKS		 1061 if (netif_running(netdev))
1062 netxen_nic_down(adapter, netdev);
1063
1064 netxen_nic_detach(adapter);
1065
6a581e93
DP		 1066 if (netif_running(netdev)) {
1067 err = netxen_nic_attach(adapter);
1068 if (!err)
1069 err = netxen_nic_up(adapter, netdev);
7042cd8f 1070
6a581e93
DP		 1071 if (err)
1072 goto done;
1073 }
1074
1075 netif_device_attach(netdev);
7042cd8f 1076 }
6a581e93 1077
7042cd8f 1078done:
6a581e93 1079 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1080 return err;
1081}
1082
f17443f4
DP		 1083static int
1084netxen_setup_netdev(struct netxen_adapter *adapter,
1085 struct net_device *netdev)
1086{
1087 int err = 0;
1088 struct pci_dev *pdev = adapter->pdev;
1089
1090 adapter->rx_csum = 1;
1091 adapter->mc_enabled = 0;
1092 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1093 adapter->max_mc_count = 38;
1094 else
1095 adapter->max_mc_count = 16;
1096
1097 netdev->netdev_ops = &netxen_netdev_ops;
1098 netdev->watchdog_timeo = 2*HZ;
1099
1100 netxen_nic_change_mtu(netdev, netdev->mtu);
1101
1102 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1103
1104 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1105 netdev->features |= (NETIF_F_GRO);
1106 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1107
1108 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1109 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1110 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1111 }
1112
1113 if (adapter->pci_using_dac) {
1114 netdev->features |= NETIF_F_HIGHDMA;
1115 netdev->vlan_features |= NETIF_F_HIGHDMA;
1116 }
1117
028afe71
DP		 1118 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1119 netdev->features |= (NETIF_F_HW_VLAN_TX);
1120
1bb482f8
NK		 1121 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1122 netdev->features |= NETIF_F_LRO;
1123
f17443f4
DP		 1124 netdev->irq = adapter->msix_entries[0].vector;
1125
f17443f4
DP		 1126 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1127
1128 if (netxen_read_mac_addr(adapter))
1129 dev_warn(&pdev->dev, "failed to read mac addr\n");
1130
1131 netif_carrier_off(netdev);
1132 netif_stop_queue(netdev);
1133
1134 err = register_netdev(netdev);
1135 if (err) {
1136 dev_err(&pdev->dev, "failed to register net device\n");
1137 return err;
1138 }
1139
1140 return 0;
1141}
1142
3d396eb1
AK		 1143static int __devinit
1144netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1145{
1146 struct net_device *netdev = NULL;
1147 struct netxen_adapter *adapter = NULL;
2956640d 1148 int i = 0, err;
3176ff3e 1149 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1150 uint8_t revision_id;
3d396eb1 1151
3176ff3e 1152 if (pdev->class != 0x020000) {
dcd56fdb 1153 printk(KERN_DEBUG "NetXen function %d, class %x will not "
3176ff3e 1154 "be enabled.\n",pci_func_id, pdev->class);
ed25ffa1
AK		 1155 return -ENODEV;
1156 }
2956640d 1157
11d89d63
DP		 1158 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1159 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1160 "will not be enabled.\n",
1161 NX_P3_A0, NX_P3_B1);
1162 return -ENODEV;
1163 }
1164
3d396eb1
AK		 1165 if ((err = pci_enable_device(pdev)))
1166 return err;
2956640d 1167
3d396eb1
AK		 1168 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1169 err = -ENODEV;
1170 goto err_out_disable_pdev;
1171 }
1172
1173 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1174 goto err_out_disable_pdev;
1175
1176 pci_set_master(pdev);
3176ff3e
MT		 1177
1178 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1179 if(!netdev) {
f17443f4
DP		 1180 dev_err(&pdev->dev, "failed to allocate net_device\n");
1181 err = -ENOMEM;
3176ff3e
MT		 1182 goto err_out_free_res;
1183 }
1184
3176ff3e
MT		 1185 SET_NETDEV_DEV(netdev, &pdev->dev);
1186
4cf1653a 1187 adapter = netdev_priv(netdev);
2956640d
DP		 1188 adapter->netdev = netdev;
1189 adapter->pdev = pdev;
13ba9c77 1190 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1191
1192 revision_id = pdev->revision;
1193 adapter->ahw.revision_id = revision_id;
1194
50c643e7 1195 err = nx_set_dma_mask(adapter);
2956640d
DP		 1196 if (err)
1197 goto err_out_free_netdev;
1198
3ce06a32 1199 rwlock_init(&adapter->adapter_lock);
d8b100c5 1200 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1201 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1202
97daee83
DP		 1203 err = netxen_setup_pci_map(adapter);
1204 if (err)
6c80b18d 1205 goto err_out_free_netdev;
3d396eb1 1206
2d1a3bbd 1207 /* This will be reset for mezz cards */
3176ff3e 1208 adapter->portnum = pci_func_id;
3176ff3e 1209
f17443f4
DP		 1210 err = netxen_nic_get_board_info(adapter);
1211 if (err) {
1212 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1213 goto err_out_iounmap;
1214 }
6c80b18d 1215
6c80b18d
MT		 1216 netxen_initialize_adapter_ops(adapter);
1217
13ba9c77 1218 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1219 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1220 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1221 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1222 if (pci_func_id >= 2)
13ba9c77 1223 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1224 break;
1225 default:
1226 break;
1227 }
13ba9c77 1228
6a581e93 1229 err = netxen_start_firmware(adapter);
0b72e659
DP		 1230 if (err)
1231 goto err_out_iounmap;
f17443f4 1232
3d396eb1 1233 /*
6c80b18d 1234 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1235 */
dcd56fdb 1236 adapter->physical_port = adapter->portnum;
4f96b988 1237 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1238 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1239 if (i != 0x55555555)
1240 adapter->physical_port = i;
1241 }
6c80b18d 1242
6a581e93 1243 netxen_nic_clear_stats(adapter);
2956640d 1244
97daee83 1245 netxen_setup_intr(adapter);
2956640d 1246
f17443f4 1247 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1248 if (err)
2956640d 1249 goto err_out_disable_msi;
6c80b18d
MT		 1250
1251 pci_set_drvdata(pdev, adapter);
3d396eb1 1252
6a581e93
DP		 1253 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1254
1e2d0059 1255 switch (adapter->ahw.port_type) {
2956640d
DP		 1256 case NETXEN_NIC_GBE:
1257 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1258 adapter->netdev->name);
1259 break;
1260 case NETXEN_NIC_XGBE:
1261 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1262 adapter->netdev->name);
1263 break;
3d396eb1 1264 }
3d396eb1 1265
2956640d
DP		 1266 return 0;
1267
1268err_out_disable_msi:
97daee83 1269 netxen_teardown_intr(adapter);
6c80b18d 1270
83ac51fa 1271 netxen_free_dummy_dma(adapter);
3d396eb1 1272
6a581e93
DP		 1273 nx_decr_dev_ref_cnt(adapter);
1274
2956640d 1275err_out_iounmap:
97daee83 1276 netxen_cleanup_pci_map(adapter);
cb8011ad 1277
6c80b18d
MT		 1278err_out_free_netdev:
1279 free_netdev(netdev);
1280
1281err_out_free_res:
3d396eb1 1282 pci_release_regions(pdev);
6c80b18d
MT		 1283
1284err_out_disable_pdev:
2956640d 1285 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1286 pci_disable_device(pdev);
1287 return err;
1288}
1289
1290static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1291{
1292 struct netxen_adapter *adapter;
3176ff3e 1293 struct net_device *netdev;
3d396eb1 1294
6c80b18d 1295 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1296 if (adapter == NULL)
1297 return;
1298
6c80b18d
MT		 1299 netdev = adapter->netdev;
1300
6a581e93
DP		 1301 netxen_cancel_fw_work(adapter);
1302
96acb6eb
DP		 1303 unregister_netdev(netdev);
1304
e424fa9d
AKS		 1305 cancel_work_sync(&adapter->tx_timeout_task);
1306
7042cd8f 1307 netxen_nic_detach(adapter);
3d396eb1 1308
6a581e93
DP		 1309 nx_decr_dev_ref_cnt(adapter);
1310
439b454e 1311 if (adapter->portnum == 0)
83ac51fa 1312 netxen_free_dummy_dma(adapter);
96acb6eb 1313
6a581e93
DP		 1314 clear_bit(__NX_RESETTING, &adapter->state);
1315
97daee83 1316 netxen_teardown_intr(adapter);
3052246c 1317
97daee83 1318 netxen_cleanup_pci_map(adapter);
595e3fb8 1319
f7185c71
DP		 1320 netxen_release_firmware(adapter);
1321
595e3fb8 1322 pci_release_regions(pdev);
3052246c 1323 pci_disable_device(pdev);
595e3fb8
MT		 1324 pci_set_drvdata(pdev, NULL);
1325
6c80b18d 1326 free_netdev(netdev);
3d396eb1 1327}
22b5794b 1328static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1329{
0b72e659
DP		 1330 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1331 struct net_device *netdev = adapter->netdev;
22b5794b 1332 int retval;
0b72e659
DP		 1333
1334 netif_device_detach(netdev);
1335
6a581e93
DP		 1336 netxen_cancel_fw_work(adapter);
1337
0b72e659
DP		 1338 if (netif_running(netdev))
1339 netxen_nic_down(adapter, netdev);
1340
e424fa9d
AKS		 1341 cancel_work_sync(&adapter->tx_timeout_task);
1342
7042cd8f 1343 netxen_nic_detach(adapter);
0b72e659 1344
22b5794b
AKS		 1345 if (adapter->portnum == 0)
1346 netxen_free_dummy_dma(adapter);
1347
6a581e93
DP		 1348 nx_decr_dev_ref_cnt(adapter);
1349
1350 clear_bit(__NX_RESETTING, &adapter->state);
1351
22b5794b
AKS		 1352 retval = pci_save_state(pdev);
1353 if (retval)
1354 return retval;
0b72e659
DP		 1355
1356 if (netxen_nic_wol_supported(adapter)) {
1357 pci_enable_wake(pdev, PCI_D3cold, 1);
1358 pci_enable_wake(pdev, PCI_D3hot, 1);
1359 }
1360
1361 pci_disable_device(pdev);
0b72e659
DP		 1362
1363 return 0;
1364}
22b5794b
AKS		 1365static void netxen_nic_shutdown(struct pci_dev *pdev)
1366{
1367 if (__netxen_nic_shutdown(pdev))
1368 return;
1369}
1370#ifdef CONFIG_PM
1371static int
1372netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1373{
1374 int retval;
1375
1376 retval = __netxen_nic_shutdown(pdev);
1377 if (retval)
1378 return retval;
1379
1380 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1381 return 0;
1382}
0b72e659
DP		 1383
1384static int
1385netxen_nic_resume(struct pci_dev *pdev)
1386{
1387 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1388 struct net_device *netdev = adapter->netdev;
1389 int err;
1390
1391 pci_set_power_state(pdev, PCI_D0);
1392 pci_restore_state(pdev);
1393
1394 err = pci_enable_device(pdev);
1395 if (err)
1396 return err;
1397
1398 adapter->curr_window = 255;
1399
6a581e93 1400 err = netxen_start_firmware(adapter);
0b72e659
DP		 1401 if (err) {
1402 dev_err(&pdev->dev, "failed to start firmware\n");
1403 return err;
1404 }
1405
1406 if (netif_running(netdev)) {
1407 err = netxen_nic_attach(adapter);
1408 if (err)
6a581e93 1409 goto err_out;
0b72e659
DP		 1410
1411 err = netxen_nic_up(adapter, netdev);
1412 if (err)
6a581e93 1413 goto err_out_detach;
0b72e659
DP		 1414
1415 netif_device_attach(netdev);
d0725e4d
AKS		 1416
1417 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1418 }
1419
6a581e93
DP		 1420 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1421
1422err_out_detach:
1423 netxen_nic_detach(adapter);
1424err_out:
1425 nx_decr_dev_ref_cnt(adapter);
1426 return err;
0b72e659 1427}
01542cd1 1428#endif
0b72e659 1429
3d396eb1
AK		 1430static int netxen_nic_open(struct net_device *netdev)
1431{
4cf1653a 1432 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1433 int err = 0;
3d396eb1 1434
dcd56fdb
DP		 1435 if (adapter->driver_mismatch)
1436 return -EIO;
1437
7042cd8f
AKS		 1438 err = netxen_nic_attach(adapter);
1439 if (err)
1440 return err;
2956640d 1441
9f5bc7f1
DP		 1442 err = netxen_nic_up(adapter, netdev);
1443 if (err)
1444 goto err_out;
05aaa02d 1445
dcd56fdb 1446 netif_start_queue(netdev);
3d396eb1
AK		 1447
1448 return 0;
2956640d 1449
9f5bc7f1
DP		 1450err_out:
1451 netxen_nic_detach(adapter);
2956640d 1452 return err;
3d396eb1
AK		 1453}
1454
1455/*
1456 * netxen_nic_close - Disables a network interface entry point
1457 */
1458static int netxen_nic_close(struct net_device *netdev)
1459{
3176ff3e 1460 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1461
9f5bc7f1 1462 netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1463 return 0;
1464}
1465
1bcfd790
DP		 1466static void
1467netxen_tso_check(struct net_device *netdev,
1468 struct nx_host_tx_ring *tx_ring,
1469 struct cmd_desc_type0 *first_desc,
1470 struct sk_buff *skb)
cd1f8160 1471{
391587c3 1472 u8 opcode = TX_ETHER_PKT;
cdff1036 1473 __be16 protocol = skb->protocol;
028afe71 1474 u16 flags = 0, vid = 0;
1bcfd790 1475 u32 producer;
028afe71 1476 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1477 struct cmd_desc_type0 *hwdesc;
028afe71 1478 struct vlan_ethhdr *vh;
cdff1036 1479
09640e63 1480 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1481
1482 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1483 protocol = vh->h_vlan_encapsulated_proto;
1484 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1485
1486 } else if (vlan_tx_tag_present(skb)) {
1487
1488 flags = FLAGS_VLAN_OOB;
1489 vid = vlan_tx_tag_get(skb);
1490 netxen_set_tx_vlan_tci(first_desc, vid);
1491 vlan_oob = 1;
cdff1036 1492 }
cd1f8160 1493
391587c3
DP		 1494 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1495 skb_shinfo(skb)->gso_size > 0) {
1496
1bcfd790
DP		 1497 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1498
1499 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1500 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1501 if (vlan_oob) {
1502 first_desc->total_hdr_length += VLAN_HLEN;
1503 first_desc->tcp_hdr_offset = VLAN_HLEN;
1504 first_desc->ip_hdr_offset = VLAN_HLEN;
1505 /* Only in case of TSO on vlan device */
1506 flags |= FLAGS_VLAN_TAGGED;
1507 }
391587c3 1508
09640e63 1509 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1510 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1511 tso = 1;
cd1f8160
DP		 1512
1513 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1514 u8 l4proto;
1515
09640e63 1516 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1517 l4proto = ip_hdr(skb)->protocol;
1518
1519 if (l4proto == IPPROTO_TCP)
1520 opcode = TX_TCP_PKT;
1521 else if(l4proto == IPPROTO_UDP)
1522 opcode = TX_UDP_PKT;
09640e63 1523 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1524 l4proto = ipv6_hdr(skb)->nexthdr;
1525
1526 if (l4proto == IPPROTO_TCP)
1527 opcode = TX_TCPV6_PKT;
1528 else if(l4proto == IPPROTO_UDP)
1529 opcode = TX_UDPV6_PKT;
1530 }
cd1f8160 1531 }
028afe71
DP		 1532
1533 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1534 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1535 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1536
1537 if (!tso)
1538 return;
1539
1540 /* For LSO, we need to copy the MAC/IP/TCP headers into
1541 * the descriptor ring
1542 */
1543 producer = tx_ring->producer;
1544 copied = 0;
1545 offset = 2;
1546
028afe71
DP		 1547 if (vlan_oob) {
1548 /* Create a TSO vlan header template for firmware */
1549
1550 hwdesc = &tx_ring->desc_head[producer];
1551 tx_ring->cmd_buf_arr[producer].skb = NULL;
1552
1553 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1554 hdr_len + VLAN_HLEN);
1555
1556 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1557 skb_copy_from_linear_data(skb, vh, 12);
1558 vh->h_vlan_proto = htons(ETH_P_8021Q);
1559 vh->h_vlan_TCI = htons(vid);
1560 skb_copy_from_linear_data_offset(skb, 12,
1561 (char *)vh + 16, copy_len - 16);
1562
545eb370 1563 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1564 offset = 0;
1565
1566 producer = get_next_index(producer, tx_ring->num_desc);
1567 }
1568
1bcfd790
DP		 1569 while (copied < hdr_len) {
1570
1571 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1572 (hdr_len - copied));
1573
1574 hwdesc = &tx_ring->desc_head[producer];
1575 tx_ring->cmd_buf_arr[producer].skb = NULL;
1576
1577 skb_copy_from_linear_data_offset(skb, copied,
1578 (char *)hwdesc + offset, copy_len);
1579
1580 copied += copy_len;
1581 offset = 0;
1582
1583 producer = get_next_index(producer, tx_ring->num_desc);
1584 }
1585
1586 tx_ring->producer = producer;
1587 barrier();
cd1f8160
DP		 1588}
1589
ce644ed4
DP		 1590static int
1591netxen_map_tx_skb(struct pci_dev *pdev,
1592 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1593{
ce644ed4
DP		 1594 struct netxen_skb_frag *nf;
1595 struct skb_frag_struct *frag;
1596 int i, nr_frags;
1597 dma_addr_t map;
1598
1599 nr_frags = skb_shinfo(skb)->nr_frags;
1600 nf = &pbuf->frag_array[0];
1601
1602 map = pci_map_single(pdev, skb->data,
1603 skb_headlen(skb), PCI_DMA_TODEVICE);
1604 if (pci_dma_mapping_error(pdev, map))
1605 goto out_err;
6f703406 1606
ce644ed4
DP		 1607 nf->dma = map;
1608 nf->length = skb_headlen(skb);
1609
1610 for (i = 0; i < nr_frags; i++) {
1611 frag = &skb_shinfo(skb)->frags[i];
1612 nf = &pbuf->frag_array[i+1];
1613
1614 map = pci_map_page(pdev, frag->page, frag->page_offset,
1615 frag->size, PCI_DMA_TODEVICE);
1616 if (pci_dma_mapping_error(pdev, map))
1617 goto unwind;
1618
1619 nf->dma = map;
1620 nf->length = frag->size;
1621 }
1622
1623 return 0;
6f703406 1624
ce644ed4 1625unwind:
cf503e8f
DP		 1626 while (--i >= 0) {
1627 nf = &pbuf->frag_array[i+1];
ce644ed4 1628 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1629 }
ce644ed4
DP		 1630
1631 nf = &pbuf->frag_array[0];
1632 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1633
1634out_err:
1635 return -ENOMEM;
6f703406
DP		 1636}
1637
d32cc3d2
DP		 1638static inline void
1639netxen_clear_cmddesc(u64 *desc)
1640{
1bcfd790
DP		 1641 desc[0] = 0ULL;
1642 desc[2] = 0ULL;
d32cc3d2
DP		 1643}
1644
61357325 1645static netdev_tx_t
d32cc3d2 1646netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1647{
3176ff3e 1648 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1649 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1650 struct netxen_cmd_buffer *pbuf;
3d396eb1 1651 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1652 struct cmd_desc_type0 *hwdesc, *first_desc;
1653 struct pci_dev *pdev;
391587c3 1654 int i, k;
3d396eb1 1655
cb2107be 1656 u32 producer;
ce644ed4 1657 int frag_count, no_of_desc;
d877f1e3 1658 u32 num_txd = tx_ring->num_desc;
3d396eb1 1659
3d396eb1
AK		 1660 frag_count = skb_shinfo(skb)->nr_frags + 1;
1661
d877f1e3 1662 /* 4 fragments per cmd des */
3d396eb1 1663 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1664
cb2107be 1665 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
ba53e6b4 1666 netif_stop_queue(netdev);
ba53e6b4 1667 return NETDEV_TX_BUSY;
53a01e00 1668 }
3d396eb1 1669
cb2107be 1670 producer = tx_ring->producer;
ce644ed4 1671 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1672
1bcfd790 1673 pdev = adapter->pdev;
391587c3 1674
ce644ed4 1675 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1676 goto drop_packet;
391587c3 1677
3d396eb1 1678 pbuf->skb = skb;
3d396eb1 1679 pbuf->frag_count = frag_count;
6f703406 1680
1bcfd790
DP		 1681 first_desc = hwdesc = &tx_ring->desc_head[producer];
1682 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1683
ce644ed4
DP		 1684 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1685 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1686
ce644ed4 1687 for (i = 0; i < frag_count; i++) {
3d396eb1 1688
ce644ed4
DP		 1689 k = i % 4;
1690
1691 if ((k == 0) && (i > 0)) {
1692 /* move to next desc.*/
ba53e6b4 1693 producer = get_next_index(producer, num_txd);
d877f1e3 1694 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1695 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1696 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1697 }
3d396eb1 1698
ce644ed4 1699 buffrag = &pbuf->frag_array[i];
3d396eb1 1700
ce644ed4 1701 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1702 switch (k) {
1703 case 0:
ce644ed4 1704 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1705 break;
1706 case 1:
ce644ed4 1707 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1708 break;
1709 case 2:
ce644ed4 1710 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1711 break;
1712 case 3:
ce644ed4 1713 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1714 break;
1715 }
3d396eb1 1716 }
ce644ed4 1717
1bcfd790 1718 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1719
1bcfd790 1720 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1721
cb2107be 1722 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1723
1bcfd790 1724 adapter->stats.txbytes += skb->len;
ba53e6b4 1725 adapter->stats.xmitcalled++;
3d396eb1 1726
3d396eb1 1727 return NETDEV_TX_OK;
6f703406
DP		 1728
1729drop_packet:
1730 adapter->stats.txdropped++;
1731 dev_kfree_skb_any(skb);
1732 return NETDEV_TX_OK;
3d396eb1
AK		 1733}
1734
a97342f9
DP		 1735static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1736{
1737 struct net_device *netdev = adapter->netdev;
1738 uint32_t temp, temp_state, temp_val;
1739 int rv = 0;
1740
f98a9f69 1741 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1742
1743 temp_state = nx_get_temp_state(temp);
1744 temp_val = nx_get_temp_val(temp);
1745
1746 if (temp_state == NX_TEMP_PANIC) {
1747 printk(KERN_ALERT
1748 "%s: Device temperature %d degrees C exceeds"
1749 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1750 netdev->name, temp_val);
a97342f9
DP		 1751 rv = 1;
1752 } else if (temp_state == NX_TEMP_WARN) {
1753 if (adapter->temp == NX_TEMP_NORMAL) {
1754 printk(KERN_ALERT
1755 "%s: Device temperature %d degrees C "
1756 "exceeds operating range."
1757 " Immediate action needed.\n",
e4135c2d 1758 netdev->name, temp_val);
a97342f9
DP		 1759 }
1760 } else {
1761 if (adapter->temp == NX_TEMP_WARN) {
1762 printk(KERN_INFO
1763 "%s: Device temperature is now %d degrees C"
e4135c2d 1764 " in normal range.\n", netdev->name,
a97342f9
DP		 1765 temp_val);
1766 }
1767 }
1768 adapter->temp = temp_state;
1769 return rv;
1770}
1771
3bf26ce3 1772void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1773{
1774 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1775
1776 if (adapter->ahw.linkup && !linkup) {
1777 printk(KERN_INFO "%s: %s NIC Link is down\n",
1778 netxen_nic_driver_name, netdev->name);
1779 adapter->ahw.linkup = 0;
1780 if (netif_running(netdev)) {
1781 netif_carrier_off(netdev);
1782 netif_stop_queue(netdev);
1783 }
e424fa9d 1784 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1785 } else if (!adapter->ahw.linkup && linkup) {
1786 printk(KERN_INFO "%s: %s NIC Link is up\n",
1787 netxen_nic_driver_name, netdev->name);
1788 adapter->ahw.linkup = 1;
1789 if (netif_running(netdev)) {
1790 netif_carrier_on(netdev);
1791 netif_wake_queue(netdev);
1792 }
e424fa9d 1793 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1794 }
1795}
1796
3bf26ce3
DP		 1797static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1798{
1799 u32 val, port, linkup;
1800
1801 port = adapter->physical_port;
1802
1803 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1804 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1805 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1806 linkup = (val == XG_LINK_UP_P3);
1807 } else {
f98a9f69 1808 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1809 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1810 linkup = (val >> port) & 1;
1811 else {
1812 val = (val >> port*8) & 0xff;
1813 linkup = (val == XG_LINK_UP);
1814 }
1815 }
1816
1817 netxen_advert_link_change(adapter, linkup);
1818}
1819
3d396eb1
AK		 1820static void netxen_tx_timeout(struct net_device *netdev)
1821{
e424fa9d 1822 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1823
6a581e93
DP		 1824 if (test_bit(__NX_RESETTING, &adapter->state))
1825 return;
1826
f17443f4 1827 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1828 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1829}
1830
f17443f4 1831static void netxen_reset_task(struct work_struct *work)
3d396eb1 1832{
4790654c 1833 struct netxen_adapter *adapter =
3176ff3e 1834 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1835
b2af9cb0
DP		 1836 if (!netif_running(adapter->netdev))
1837 return;
1838
6a581e93
DP		 1839 if (test_bit(__NX_RESETTING, &adapter->state))
1840 return;
1841
d8b100c5 1842 netxen_napi_disable(adapter);
ba53e6b4 1843
6c80b18d 1844 adapter->netdev->trans_start = jiffies;
ba53e6b4 1845
d8b100c5 1846 netxen_napi_enable(adapter);
6c80b18d 1847 netif_wake_queue(adapter->netdev);
3d396eb1
AK		 1848}
1849
a97342f9
DP		 1850struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1851{
1852 struct netxen_adapter *adapter = netdev_priv(netdev);
1853 struct net_device_stats *stats = &adapter->net_stats;
1854
1855 memset(stats, 0, sizeof(*stats));
1856
1bb482f8 1857 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1858 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1859 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1860 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1861 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1862 stats->tx_dropped = adapter->stats.txdropped;
1863
1864 return stats;
1865}
1866
e4c93c81 1867static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1868{
d8b100c5
DP		 1869 struct nx_host_sds_ring *sds_ring = data;
1870 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1871 u32 status = 0;
1872
1873 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1874
1875 if (!(status & adapter->legacy_intr.int_vec_bit))
05aaa02d 1876 return IRQ_NONE;
e01872af 1877
d71e1be8
DP		 1878 if (adapter->ahw.revision_id >= NX_P3_B1) {
1879 /* check interrupt state machine, to be sure */
1880 status = adapter->pci_read_immediate(adapter,
1881 ISR_INT_STATE_REG);
1882 if (!ISR_LEGACY_INT_TRIGGERED(status))
1883 return IRQ_NONE;
1884
092bc571
DP		 1885 } else {
1886 unsigned long our_int = 0;
d71e1be8 1887
f98a9f69 1888 our_int = NXRD32(adapter, CRB_INT_VECTOR);
092bc571 1889
d71e1be8 1890 /* not our interrupt */
092bc571 1891 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1892 return IRQ_NONE;
1893
092bc571 1894 /* claim interrupt */
f98a9f69 1895 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
e01872af 1896 }
1897
092bc571 1898 /* clear interrupt */
4f96b988 1899 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
d8b100c5 1900 netxen_nic_disable_int(sds_ring);
092bc571
DP		 1901
1902 adapter->pci_write_immediate(adapter,
1903 adapter->legacy_intr.tgt_status_reg,
1904 0xffffffff);
1905 /* read twice to ensure write is flushed */
1906 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1907 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1908
d8b100c5 1909 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 1910
1911 return IRQ_HANDLED;
1912}
1913
e4c93c81 1914static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 1915{
d8b100c5
DP		 1916 struct nx_host_sds_ring *sds_ring = data;
1917 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 1918
092bc571
DP		 1919 /* clear interrupt */
1920 adapter->pci_write_immediate(adapter,
7a2469ce 1921 adapter->msi_tgt_status, 0xffffffff);
092bc571 1922
d8b100c5 1923 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 1924 return IRQ_HANDLED;
1925}
1926
b3df68f8
DP		 1927static irqreturn_t netxen_msix_intr(int irq, void *data)
1928{
d8b100c5 1929 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 1930
d8b100c5 1931 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 1932 return IRQ_HANDLED;
1933}
1934
bea3348e 1935static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 1936{
d8b100c5
DP		 1937 struct nx_host_sds_ring *sds_ring =
1938 container_of(napi, struct nx_host_sds_ring, napi);
1939
1940 struct netxen_adapter *adapter = sds_ring->adapter;
1941
05aaa02d 1942 int tx_complete;
bea3348e 1943 int work_done;
3d396eb1 1944
05aaa02d 1945 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 1946
d8b100c5 1947 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 1948
05aaa02d 1949 if ((work_done < budget) && tx_complete) {
d8b100c5 1950 napi_complete(&sds_ring->napi);
b2af9cb0
DP		 1951 if (netif_running(adapter->netdev))
1952 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 1953 }
1954
bea3348e 1955 return work_done;
3d396eb1
AK		 1956}
1957
1958#ifdef CONFIG_NET_POLL_CONTROLLER
1959static void netxen_nic_poll_controller(struct net_device *netdev)
1960{
3176ff3e 1961 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1962 disable_irq(adapter->irq);
1494a814 1963 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 1964 enable_irq(adapter->irq);
1965}
1966#endif
3d396eb1 1967
6a581e93
DP		 1968static int
1969nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
1970{
1971 int count;
1972 if (netxen_api_lock(adapter))
1973 return -EIO;
1974
1975 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1976
1977 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
1978
1979 netxen_api_unlock(adapter);
1980 return count;
1981}
1982
1983static int
1984nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
1985{
1986 int count;
1987 if (netxen_api_lock(adapter))
1988 return -EIO;
1989
1990 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1991 WARN_ON(count == 0);
1992
1993 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
1994
1995 if (count == 0)
1996 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
1997
1998 netxen_api_unlock(adapter);
1999 return count;
2000}
2001
2002static int
2003netxen_can_start_firmware(struct netxen_adapter *adapter)
2004{
2005 int count;
2006 int can_start = 0;
2007
2008 if (netxen_api_lock(adapter))
2009 return 0;
2010
2011 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2012
2013 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2014 count = 0;
2015
2016 if (count == 0) {
2017 can_start = 1;
2018 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2019 }
2020
2021 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2022
2023 netxen_api_unlock(adapter);
2024
2025 return can_start;
2026}
2027
2028static void
2029netxen_schedule_work(struct netxen_adapter *adapter,
2030 work_func_t func, int delay)
2031{
2032 INIT_DELAYED_WORK(&adapter->fw_work, func);
2033 schedule_delayed_work(&adapter->fw_work, delay);
2034}
2035
2036static void
2037netxen_cancel_fw_work(struct netxen_adapter *adapter)
2038{
2039 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2040 msleep(10);
2041
2042 cancel_delayed_work_sync(&adapter->fw_work);
2043}
2044
2045static void
2046netxen_attach_work(struct work_struct *work)
2047{
2048 struct netxen_adapter *adapter = container_of(work,
2049 struct netxen_adapter, fw_work.work);
2050 struct net_device *netdev = adapter->netdev;
2051 int err = 0;
2052
2053 if (netif_running(netdev)) {
2054 err = netxen_nic_attach(adapter);
2055 if (err)
2056 goto done;
2057
2058 err = netxen_nic_up(adapter, netdev);
2059 if (err) {
2060 netxen_nic_detach(adapter);
2061 goto done;
2062 }
2063
d0725e4d 2064 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2065 }
2066
2067 netif_device_attach(netdev);
2068
2069done:
2070 adapter->fw_fail_cnt = 0;
2071 clear_bit(__NX_RESETTING, &adapter->state);
2072 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2073}
2074
2075static void
2076netxen_fwinit_work(struct work_struct *work)
2077{
2078 struct netxen_adapter *adapter = container_of(work,
2079 struct netxen_adapter, fw_work.work);
2080 int dev_state;
2081
2082 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2083
2084 switch (dev_state) {
2085 case NX_DEV_COLD:
2086 case NX_DEV_READY:
2087 netxen_start_firmware(adapter);
2088 netxen_schedule_work(adapter, netxen_attach_work, 0);
2089 return;
2090
2091 case NX_DEV_INITALIZING:
2092 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2093 netxen_schedule_work(adapter,
2094 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2095 return;
2096 }
2097 break;
2098
2099 case NX_DEV_FAILED:
2100 default:
2101 break;
2102 }
2103
2104 nx_incr_dev_ref_cnt(adapter);
2105 clear_bit(__NX_RESETTING, &adapter->state);
2106}
2107
2108static void
2109netxen_detach_work(struct work_struct *work)
2110{
2111 struct netxen_adapter *adapter = container_of(work,
2112 struct netxen_adapter, fw_work.work);
2113 struct net_device *netdev = adapter->netdev;
2114 int ref_cnt, delay;
2115 u32 status;
2116
2117 netif_device_detach(netdev);
2118
2119 if (netif_running(netdev))
2120 netxen_nic_down(adapter, netdev);
2121
2122 netxen_nic_detach(adapter);
2123
2124 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2125
2126 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2127
2128 if (status & NX_RCODE_FATAL_ERROR)
2129 return;
2130
2131 if (adapter->temp == NX_TEMP_PANIC)
2132 return;
2133
2134 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2135
2136 adapter->fw_wait_cnt = 0;
2137 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2138}
2139
2140static int
2141netxen_check_health(struct netxen_adapter *adapter)
2142{
2143 u32 state, heartbit;
2144 struct net_device *netdev = adapter->netdev;
2145
2146 if (netxen_nic_check_temp(adapter))
2147 goto detach;
2148
2149 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2150 if (state == NX_DEV_NEED_RESET)
2151 goto detach;
2152
2153 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2154 return 0;
2155
2156 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2157 if (heartbit != adapter->heartbit) {
2158 adapter->heartbit = heartbit;
2159 adapter->fw_fail_cnt = 0;
2160 return 0;
2161 }
2162
2163 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2164 return 0;
2165
2166 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2167
2168 dev_info(&netdev->dev, "firmware hang detected\n");
2169
2170detach:
2171 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2172 netxen_schedule_work(adapter, netxen_detach_work, 0);
2173 return 1;
2174}
2175
2176static void
2177netxen_fw_poll_work(struct work_struct *work)
2178{
2179 struct netxen_adapter *adapter = container_of(work,
2180 struct netxen_adapter, fw_work.work);
2181
2182 if (test_bit(__NX_RESETTING, &adapter->state))
2183 goto reschedule;
2184
2185 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2186 if (!adapter->has_link_events) {
2187
2188 netxen_nic_handle_phy_intr(adapter);
2189
2190 if (adapter->link_changed)
2191 netxen_nic_set_link_parameters(adapter);
2192 }
2193 }
2194
2195 if (netxen_check_health(adapter))
2196 return;
2197
2198reschedule:
2199 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2200}
2201
fa3ce355
NK		 2202static ssize_t
2203netxen_store_bridged_mode(struct device *dev,
2204 struct device_attribute *attr, const char *buf, size_t len)
2205{
2206 struct net_device *net = to_net_dev(dev);
2207 struct netxen_adapter *adapter = netdev_priv(net);
2208 unsigned long new;
2209 int ret = -EINVAL;
2210
2211 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2212 goto err_out;
2213
2214 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2215 goto err_out;
2216
2217 if (strict_strtoul(buf, 2, &new))
2218 goto err_out;
2219
2220 if (!netxen_config_bridged_mode(adapter, !!new))
2221 ret = len;
2222
2223err_out:
2224 return ret;
2225}
2226
2227static ssize_t
2228netxen_show_bridged_mode(struct device *dev,
2229 struct device_attribute *attr, char *buf)
2230{
2231 struct net_device *net = to_net_dev(dev);
2232 struct netxen_adapter *adapter;
2233 int bridged_mode = 0;
2234
2235 adapter = netdev_priv(net);
2236
2237 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2238 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2239
2240 return sprintf(buf, "%d\n", bridged_mode);
2241}
2242
2243static struct device_attribute dev_attr_bridged_mode = {
2244 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2245 .show = netxen_show_bridged_mode,
2246 .store = netxen_store_bridged_mode,
2247};
2248
2249static void
2250netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2251{
2252 struct net_device *netdev = adapter->netdev;
2253 struct device *dev = &netdev->dev;
2254
2255 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2256 /* bridged_mode control */
2257 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2258 dev_warn(&netdev->dev,
2259 "failed to create bridged_mode sysfs entry\n");
2260 }
2261 }
2262}
2263
2264static void
2265netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2266{
2267 struct net_device *netdev = adapter->netdev;
2268 struct device *dev = &netdev->dev;
2269
2270 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2271 device_remove_file(dev, &dev_attr_bridged_mode);
2272}
2273
044824d9
DP		 2274#ifdef CONFIG_INET
2275
6598b169
DP		 2276#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2277
2278static int
2279netxen_destip_supported(struct netxen_adapter *adapter)
2280{
2281 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2282 return 0;
2283
2284 if (adapter->ahw.cut_through)
2285 return 0;
2286
2287 return 1;
2288}
2289
d0725e4d
AKS		 2290static void
2291netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2292{
2293 struct in_device *indev;
2294 struct netxen_adapter *adapter = netdev_priv(dev);
2295
2296 if (netxen_destip_supported(adapter))
2297 return;
2298
2299 indev = in_dev_get(dev);
2300 if (!indev)
2301 return;
2302
2303 for_ifa(indev) {
2304 switch (event) {
2305 case NETDEV_UP:
2306 netxen_config_ipaddr(adapter,
2307 ifa->ifa_address, NX_IP_UP);
2308 break;
2309 case NETDEV_DOWN:
2310 netxen_config_ipaddr(adapter,
2311 ifa->ifa_address, NX_IP_DOWN);
2312 break;
2313 default:
2314 break;
2315 }
2316 } endfor_ifa(indev);
2317
2318 in_dev_put(indev);
2319 return;
2320}
2321
6598b169
DP		 2322static int netxen_netdev_event(struct notifier_block *this,
2323 unsigned long event, void *ptr)
2324{
2325 struct netxen_adapter *adapter;
2326 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2327
2328recheck:
2329 if (dev == NULL)
2330 goto done;
2331
2332 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2333 dev = vlan_dev_real_dev(dev);
2334 goto recheck;
2335 }
2336
2337 if (!is_netxen_netdev(dev))
2338 goto done;
2339
2340 adapter = netdev_priv(dev);
2341
d0725e4d 2342 if (!adapter)
6598b169
DP		 2343 goto done;
2344
2345 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2346 goto done;
2347
d0725e4d 2348 netxen_config_indev_addr(dev, event);
6598b169
DP		 2349done:
2350 return NOTIFY_DONE;
2351}
2352
2353static int
2354netxen_inetaddr_event(struct notifier_block *this,
2355 unsigned long event, void *ptr)
2356{
2357 struct netxen_adapter *adapter;
2358 struct net_device *dev;
2359
2360 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2361
2362 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2363
2364recheck:
2365 if (dev == NULL || !netif_running(dev))
2366 goto done;
2367
2368 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2369 dev = vlan_dev_real_dev(dev);
2370 goto recheck;
2371 }
2372
2373 if (!is_netxen_netdev(dev))
2374 goto done;
2375
2376 adapter = netdev_priv(dev);
2377
2378 if (!adapter || !netxen_destip_supported(adapter))
2379 goto done;
2380
2381 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2382 goto done;
2383
2384 switch (event) {
2385 case NETDEV_UP:
2386 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2387 break;
2388 case NETDEV_DOWN:
2389 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2390 break;
2391 default:
2392 break;
2393 }
2394
2395done:
2396 return NOTIFY_DONE;
2397}
2398
2399static struct notifier_block netxen_netdev_cb = {
2400 .notifier_call = netxen_netdev_event,
2401};
2402
2403static struct notifier_block netxen_inetaddr_cb = {
2404 .notifier_call = netxen_inetaddr_event,
2405};
044824d9 2406#endif
6598b169 2407
3d396eb1
AK		 2408static struct pci_driver netxen_driver = {
2409 .name = netxen_nic_driver_name,
2410 .id_table = netxen_pci_tbl,
2411 .probe = netxen_nic_probe,
0b72e659 2412 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2413#ifdef CONFIG_PM
0b72e659 2414 .suspend = netxen_nic_suspend,
22b5794b 2415 .resume = netxen_nic_resume,
01542cd1 2416#endif
22b5794b 2417 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2418};
2419
3d396eb1
AK		 2420static int __init netxen_init_module(void)
2421{
ff4fbd43
DP		 2422 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2423
044824d9 2424#ifdef CONFIG_INET
6598b169
DP		 2425 register_netdevice_notifier(&netxen_netdev_cb);
2426 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2427#endif
6598b169 2428
184231bd 2429 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2430}
2431
2432module_init(netxen_init_module);
2433
2434static void __exit netxen_exit_module(void)
2435{
3d396eb1 2436 pci_unregister_driver(&netxen_driver);
6598b169 2437
044824d9 2438#ifdef CONFIG_INET
6598b169
DP		 2439 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2440 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2441#endif
3d396eb1
AK		 2442}
2443
2444module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)