projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
phylib: SIOCGMIIREG/SIOCSMIIREG: allow access to all mdio addresses
[linux-2.6-block.git] / drivers / net / netxen / netxen_nic_main.c
CommitLineData
3d396eb1 1/*
5d242f1c 2 * Copyright (C) 2003 - 2009 NetXen, Inc.
13af7a6e 3 * Copyright (C) 2009 - QLogic Corporation.
3d396eb1 4 * All rights reserved.
80922fbc 5 *
3d396eb1
AK		 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
80922fbc 10 *
3d396eb1
AK		 11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
80922fbc 15 *
3d396eb1
AK		 16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
80922fbc 20 *
3d396eb1 21 * The full GNU General Public License is included in this distribution
4d21fef4 22 * in the file called "COPYING".
80922fbc 23 *
3d396eb1
AK		 24 */
25
5a0e3ad6 26#include <linux/slab.h>
cb8011ad 27#include <linux/vmalloc.h>
e98e3350 28#include <linux/interrupt.h>
3d396eb1
AK		 29#include "netxen_nic_hw.h"
30
31#include "netxen_nic.h"
3d396eb1 32
1494a814 33#include <linux/dma-mapping.h>
391587c3 34#include <linux/if_vlan.h>
c9bdd4b5 35#include <net/ip.h>
00977784 36#include <linux/ipv6.h>
6598b169 37#include <linux/inetdevice.h>
0531d7b8 38#include <linux/sysfs.h>
e87ad553 39#include <linux/aer.h>
1494a814 40
0438a1b2 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 45
ceded32f 46char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 48 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 49
2956640d
DP		 50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52/* Default to restricted 1G auto-neg mode */
53static int wol_port_mode = 5;
54
55static int use_msi = 1;
56
57static int use_msi_x = 1;
58
afdafff1
SH		 59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 62
3d396eb1 63static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 64 const struct pci_device_id *ent);
3d396eb1
AK		 65static void __devexit netxen_nic_remove(struct pci_dev *pdev);
66static int netxen_nic_open(struct net_device *netdev);
67static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
3d396eb1 70static void netxen_tx_timeout(struct net_device *netdev);
74c520da 71static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 72static void netxen_fw_poll_work(struct work_struct *work);
73static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 76static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void netxen_nic_poll_controller(struct net_device *netdev);
79#endif
fa3ce355
NK		 80
81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 83static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 85
e87ad553 86static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 87static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88static int netxen_can_start_firmware(struct netxen_adapter *adapter);
89
1494a814 90static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 91static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 92static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 93
d0725e4d 94static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
7e12bb0a 95static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
96static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 97
3d396eb1 98/* PCI Device ID Table */
70081ac5 99#define ENTRY(device) \
040dec3b 100 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 101 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
102
a3aa1884 103static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 104 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
105 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
106 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
107 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
111 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 112 {0,}
113};
114
115MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
116
7830b22c
DP		 117static uint32_t crb_cmd_producer[4] = {
118 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
119 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
120};
121
c9fc891f 122void
3ce06a32 123netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 124 struct nx_host_tx_ring *tx_ring)
3176ff3e 125{
195c5f98 126 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 127}
128
7830b22c
DP		 129static uint32_t crb_cmd_consumer[4] = {
130 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
131 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
132};
133
3ce06a32
DP		 134static inline void
135netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 136 struct nx_host_tx_ring *tx_ring)
3176ff3e 137{
195c5f98 138 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 139}
140
2956640d 141static uint32_t msi_tgt_status[8] = {
443be796 142 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 143 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
144 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
145 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 146};
147
2956640d
DP		 148static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
149
d8b100c5 150static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 151{
d8b100c5
DP		 152 struct netxen_adapter *adapter = sds_ring->adapter;
153
195c5f98 154 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 155}
156
d8b100c5 157static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 158{
d8b100c5
DP		 159 struct netxen_adapter *adapter = sds_ring->adapter;
160
195c5f98 161 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 162
092bc571 163 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 164 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 165}
166
71dcddbd
DP		 167static int
168netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
169{
170 int size = sizeof(struct nx_host_sds_ring) * count;
171
172 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
173
807540ba 174 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 175}
176
d8b100c5 177static void
71dcddbd
DP		 178netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
179{
180 if (recv_ctx->sds_rings != NULL)
181 kfree(recv_ctx->sds_rings);
232e7d68
DP		 182
183 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 184}
185
186static int
d8b100c5
DP		 187netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
188{
189 int ring;
190 struct nx_host_sds_ring *sds_ring;
191 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
192
71dcddbd 193 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 194 return -ENOMEM;
71dcddbd 195
d8b100c5
DP		 196 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
197 sds_ring = &recv_ctx->sds_rings[ring];
198 netif_napi_add(netdev, &sds_ring->napi,
199 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
200 }
71dcddbd
DP		 201
202 return 0;
d8b100c5
DP		 203}
204
232e7d68
DP		 205static void
206netxen_napi_del(struct netxen_adapter *adapter)
207{
208 int ring;
209 struct nx_host_sds_ring *sds_ring;
210 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
211
212 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
213 sds_ring = &recv_ctx->sds_rings[ring];
214 netif_napi_del(&sds_ring->napi);
215 }
216
217 netxen_free_sds_rings(&adapter->recv_ctx);
218}
219
d8b100c5
DP		 220static void
221netxen_napi_enable(struct netxen_adapter *adapter)
222{
223 int ring;
224 struct nx_host_sds_ring *sds_ring;
225 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
226
227 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
228 sds_ring = &recv_ctx->sds_rings[ring];
229 napi_enable(&sds_ring->napi);
230 netxen_nic_enable_int(sds_ring);
231 }
232}
233
234static void
235netxen_napi_disable(struct netxen_adapter *adapter)
236{
237 int ring;
238 struct nx_host_sds_ring *sds_ring;
239 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
240
241 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
242 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 243 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 244 napi_synchronize(&sds_ring->napi);
245 napi_disable(&sds_ring->napi);
d8b100c5
DP		 246 }
247}
248
50c643e7 249static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 250{
251 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 252 uint64_t mask, cmask;
253
254 adapter->pci_using_dac = 0;
2956640d 255
6afd142f 256 mask = DMA_BIT_MASK(32);
6afd142f 257 cmask = DMA_BIT_MASK(32);
1f434f63 258
50c643e7 259 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 260#ifndef CONFIG_IA64
6afd142f 261 mask = DMA_BIT_MASK(35);
1f434f63 262#endif
50c643e7
DP		 263 } else {
264 mask = DMA_BIT_MASK(39);
265 cmask = mask;
266 }
267
2956640d 268 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 269 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 270 adapter->pci_using_dac = 1;
271 return 0;
272 }
2956640d 273
1f434f63
DP		 274 return -EIO;
275}
276
277/* Update addressable range if firmware supports it */
278static int
279nx_update_dma_mask(struct netxen_adapter *adapter)
280{
281 int change, shift, err;
50c643e7 282 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 283 struct pci_dev *pdev = adapter->pdev;
284
285 change = 0;
286
f98a9f69 287 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 288 if (shift > 32)
1f434f63
DP		 289 return 0;
290
291 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
292 change = 1;
293 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
294 change = 1;
295
296 if (change) {
297 old_mask = pdev->dma_mask;
50c643e7
DP		 298 old_cmask = pdev->dev.coherent_dma_mask;
299
f60f7856 300 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 301
302 err = pci_set_dma_mask(pdev, mask);
303 if (err)
50c643e7
DP		 304 goto err_out;
305
306 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
307
308 err = pci_set_consistent_dma_mask(pdev, mask);
309 if (err)
310 goto err_out;
311 }
312 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 313 }
314
2956640d 315 return 0;
50c643e7
DP		 316
317err_out:
318 pci_set_dma_mask(pdev, old_mask);
319 pci_set_consistent_dma_mask(pdev, old_cmask);
320 return err;
2956640d
DP		 321}
322
2956640d
DP		 323static int
324netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
325{
27c915a4 326 u32 val, timeout;
2956640d
DP		 327
328 if (first_boot == 0x55555555) {
329 /* This is the first boot after power up */
f98a9f69 330 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 331
332 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
333 return 0;
2956640d
DP		 334
335 /* PCI bus master workaround */
f98a9f69 336 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 337 if (!(first_boot & 0x4)) {
338 first_boot |= 0x4;
f98a9f69 339 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 340 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 341 }
342
343 /* This is the first boot after power up */
f98a9f69 344 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 345 if (first_boot != 0x80000f) {
346 /* clear the register for future unloads/loads */
f98a9f69 347 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 348 return -EIO;
2956640d
DP		 349 }
350
27c915a4 351 /* Start P2 boot loader */
f98a9f69
DP		 352 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
353 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 354 timeout = 0;
355 do {
356 msleep(1);
f98a9f69 357 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 358
359 if (++timeout > 5000)
360 return -EIO;
361
362 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 363 }
27c915a4 364 return 0;
2956640d
DP		 365}
366
367static void netxen_set_port_mode(struct netxen_adapter *adapter)
368{
369 u32 val, data;
370
1e2d0059 371 val = adapter->ahw.board_type;
2956640d
DP		 372 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
373 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
374 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
375 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 376 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 377 } else if (port_mode == NETXEN_PORT_MODE_XG) {
378 data = NETXEN_PORT_MODE_XG;
f98a9f69 379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 380 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
381 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 386 } else {
387 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 389 }
390
391 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
392 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
395 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
396 }
f98a9f69 397 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 398 }
399}
400
2956640d
DP		 401static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
402{
403 u32 control;
404 int pos;
405
406 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
407 if (pos) {
408 pci_read_config_dword(pdev, pos, &control);
409 if (enable)
410 control |= PCI_MSIX_FLAGS_ENABLE;
411 else
412 control = 0;
413 pci_write_config_dword(pdev, pos, control);
414 }
415}
416
be339aee 417static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 418{
419 int i;
420
be339aee 421 for (i = 0; i < count; i++)
2956640d
DP		 422 adapter->msix_entries[i].entry = i;
423}
424
9dc28efe
DP		 425static int
426netxen_read_mac_addr(struct netxen_adapter *adapter)
427{
428 int i;
429 unsigned char *p;
a03d2451 430 u64 mac_addr;
9dc28efe
DP		 431 struct net_device *netdev = adapter->netdev;
432 struct pci_dev *pdev = adapter->pdev;
433
9dc28efe
DP		 434 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
435 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
436 return -EIO;
437 } else {
438 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
439 return -EIO;
440 }
441
442 p = (unsigned char *)&mac_addr;
443 for (i = 0; i < 6; i++)
444 netdev->dev_addr[i] = *(p + 5 - i);
445
446 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
5d09e534 447 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 448
449 /* set station address */
450
e174961c
JB		 451 if (!is_valid_ether_addr(netdev->perm_addr))
452 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 453
454 return 0;
455}
456
7e12bb0a 457static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 458{
459 struct netxen_adapter *adapter = netdev_priv(netdev);
460 struct sockaddr *addr = p;
461
462 if (!is_valid_ether_addr(addr->sa_data))
463 return -EINVAL;
464
465 if (netif_running(netdev)) {
466 netif_device_detach(netdev);
467 netxen_napi_disable(adapter);
468 }
469
5d09e534 470 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 471 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
472 adapter->macaddr_set(adapter, addr->sa_data);
473
474 if (netif_running(netdev)) {
475 netif_device_attach(netdev);
476 netxen_napi_enable(adapter);
477 }
478 return 0;
479}
480
1abd266f
SH		 481static void netxen_set_multicast_list(struct net_device *dev)
482{
483 struct netxen_adapter *adapter = netdev_priv(dev);
484
3d0a3cc9 485 adapter->set_multi(dev);
1abd266f
SH		 486}
487
488static const struct net_device_ops netxen_netdev_ops = {
489 .ndo_open = netxen_nic_open,
490 .ndo_stop = netxen_nic_close,
491 .ndo_start_xmit = netxen_nic_xmit_frame,
492 .ndo_get_stats = netxen_nic_get_stats,
493 .ndo_validate_addr = eth_validate_addr,
494 .ndo_set_multicast_list = netxen_set_multicast_list,
495 .ndo_set_mac_address = netxen_nic_set_mac,
496 .ndo_change_mtu = netxen_nic_change_mtu,
497 .ndo_tx_timeout = netxen_tx_timeout,
498#ifdef CONFIG_NET_POLL_CONTROLLER
499 .ndo_poll_controller = netxen_nic_poll_controller,
500#endif
501};
502
97daee83
DP		 503static void
504netxen_setup_intr(struct netxen_adapter *adapter)
505{
506 struct netxen_legacy_intr_set *legacy_intrp;
507 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 508 int err, num_msix;
509
510 if (adapter->rss_supported) {
511 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
512 MSIX_ENTRIES_PER_ADAPTER : 2;
513 } else
514 num_msix = 1;
515
516 adapter->max_sds_rings = 1;
97daee83
DP		 517
518 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 519
520 if (adapter->ahw.revision_id >= NX_P3_B0)
521 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
522 else
523 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 524
525 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
526 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
527 legacy_intrp->tgt_status_reg);
528 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
529 legacy_intrp->tgt_mask_reg);
530 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
531 legacy_intrp->pci_int_reg);
532 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
533
534 if (adapter->ahw.revision_id >= NX_P3_B1)
535 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
536 ISR_INT_STATE_REG);
537 else
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
539 CRB_INT_VECTOR);
97daee83
DP		 540
541 netxen_set_msix_bit(pdev, 0);
542
543 if (adapter->msix_supported) {
544
be339aee
DP		 545 netxen_init_msix_entries(adapter, num_msix);
546 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
547 if (err == 0) {
548 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
549 netxen_set_msix_bit(pdev, 1);
97daee83 550
be339aee
DP		 551 if (adapter->rss_supported)
552 adapter->max_sds_rings = num_msix;
97daee83 553
be339aee
DP		 554 dev_info(&pdev->dev, "using msi-x interrupts\n");
555 return;
556 }
557
558 if (err > 0)
559 pci_disable_msix(pdev);
560
561 /* fall through for msi */
97daee83 562 }
be339aee
DP		 563
564 if (use_msi && !pci_enable_msi(pdev)) {
565 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 566 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
567 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 568 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 569 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 570 return;
571 }
572
573 dev_info(&pdev->dev, "using legacy interrupts\n");
574 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 575}
576
577static void
578netxen_teardown_intr(struct netxen_adapter *adapter)
579{
580 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
581 pci_disable_msix(adapter->pdev);
582 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
583 pci_disable_msi(adapter->pdev);
584}
585
586static void
587netxen_cleanup_pci_map(struct netxen_adapter *adapter)
588{
589 if (adapter->ahw.db_base != NULL)
590 iounmap(adapter->ahw.db_base);
591 if (adapter->ahw.pci_base0 != NULL)
592 iounmap(adapter->ahw.pci_base0);
593 if (adapter->ahw.pci_base1 != NULL)
594 iounmap(adapter->ahw.pci_base1);
595 if (adapter->ahw.pci_base2 != NULL)
596 iounmap(adapter->ahw.pci_base2);
597}
598
599static int
600netxen_setup_pci_map(struct netxen_adapter *adapter)
601{
97daee83
DP		 602 void __iomem *db_ptr = NULL;
603
71fb62fb 604 resource_size_t mem_base, db_base;
afbe5cd6 605 unsigned long mem_len, db_len = 0;
97daee83
DP		 606
607 struct pci_dev *pdev = adapter->pdev;
608 int pci_func = adapter->ahw.pci_func;
afbe5cd6 609 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 610
611 int err = 0;
612
613 /*
614 * Set the CRB window to invalid. If any register in window 0 is
615 * accessed it should set the window to 0 and then reset it to 1.
616 */
907fa120 617 adapter->ahw.crb_win = -1;
47abe356 618 adapter->ahw.ocm_win = -1;
97daee83
DP		 619
620 /* remap phys address */
621 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
622 mem_len = pci_resource_len(pdev, 0);
97daee83 623
97daee83
DP		 624 /* 128 Meg of memory */
625 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 626
627 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
628 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 629 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 630 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 631 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 632 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
633 ahw->pci_base2 == NULL) {
634 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
635 err = -EIO;
636 goto err_out;
637 }
638
639 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
640
97daee83 641 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 642
643 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
644 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 645 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 646 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
647 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
648 err = -EIO;
649 goto err_out;
650 }
651
97daee83 652 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 653
afbe5cd6
AKS		 654 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
655 if (ahw->pci_base0 == NULL) {
97daee83
DP		 656 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
657 return -EIO;
658 }
afbe5cd6 659 ahw->pci_len0 = mem_len;
97daee83
DP		 660 } else {
661 return -EIO;
662 }
663
195c5f98
AKS		 664 netxen_setup_hwops(adapter);
665
97daee83
DP		 666 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
667
6abb4b83
AKS		 668 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
669 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
670 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
671
672 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 673 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
674 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
675 }
676
97daee83
DP		 677 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
678 goto skip_doorbell;
679
680 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
681 db_len = pci_resource_len(pdev, 4);
682
683 if (db_len == 0) {
684 printk(KERN_ERR "%s: doorbell is disabled\n",
685 netxen_nic_driver_name);
686 err = -EIO;
687 goto err_out;
688 }
689
690 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
691 if (!db_ptr) {
692 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
693 netxen_nic_driver_name);
694 err = -EIO;
695 goto err_out;
696 }
697
698skip_doorbell:
699 adapter->ahw.db_base = db_ptr;
700 adapter->ahw.db_len = db_len;
701 return 0;
702
703err_out:
704 netxen_cleanup_pci_map(adapter);
705 return err;
706}
707
2b9e62ee
DP		 708static void
709netxen_check_options(struct netxen_adapter *adapter)
710{
711 u32 fw_major, fw_minor, fw_build;
712 char brd_name[NETXEN_MAX_SHORT_NAME];
713 char serial_num[32];
714 int i, offset, val;
715 int *ptr32;
716 struct pci_dev *pdev = adapter->pdev;
717
718 adapter->driver_mismatch = 0;
719
720 ptr32 = (int *)&serial_num;
721 offset = NX_FW_SERIAL_NUM_OFFSET;
722 for (i = 0; i < 8; i++) {
723 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
724 dev_err(&pdev->dev, "error reading board info\n");
725 adapter->driver_mismatch = 1;
726 return;
727 }
728 ptr32[i] = cpu_to_le32(val);
729 offset += sizeof(u32);
730 }
731
732 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
733 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
734 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
735
736 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
737
738 if (adapter->portnum == 0) {
739 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
740
c25c0b9b
DP		 741 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
742 module_name(THIS_MODULE),
2b9e62ee
DP		 743 brd_name, serial_num, adapter->ahw.revision_id);
744 }
745
746 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
747 adapter->driver_mismatch = 1;
748 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
749 fw_major, fw_minor, fw_build);
750 return;
751 }
752
753 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
754 i = NXRD32(adapter, NETXEN_SRE_MISC);
755 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
756 }
757
758 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
759 fw_major, fw_minor, fw_build,
760 adapter->ahw.cut_through ? "cut-through" : "legacy");
761
762 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
763 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
764
2b9e62ee
DP		 765 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
766 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
767 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
768 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
769 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
770 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
771 }
772
773 adapter->msix_supported = 0;
774 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
775 adapter->msix_supported = !!use_msi_x;
776 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 777 } else {
778 u32 flashed_ver = 0;
779 netxen_rom_fast_read(adapter,
780 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
781 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
782
783 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
784 switch (adapter->ahw.board_type) {
785 case NETXEN_BRDTYPE_P2_SB31_10G:
786 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
787 adapter->msix_supported = !!use_msi_x;
788 adapter->rss_supported = !!use_msi_x;
789 break;
790 default:
791 break;
792 }
2b9e62ee
DP		 793 }
794 }
795
796 adapter->num_txd = MAX_CMD_DESCRIPTORS;
797
798 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
799 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
800 adapter->max_rds_rings = 3;
801 } else {
802 adapter->num_lro_rxd = 0;
803 adapter->max_rds_rings = 2;
804 }
805}
806
ba599d4f 807static int
6a581e93 808netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 809{
810 int val, err, first_boot;
811 struct pci_dev *pdev = adapter->pdev;
812
2b9e62ee
DP		 813 /* required for NX2031 dummy dma */
814 err = nx_set_dma_mask(adapter);
815 if (err)
816 return err;
817
6a581e93 818 if (!netxen_can_start_firmware(adapter))
96f2ebd2 819 goto wait_init;
0b72e659 820
f98a9f69 821 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 822
823 err = netxen_check_hw_init(adapter, first_boot);
824 if (err) {
825 dev_err(&pdev->dev, "error in init HW init sequence\n");
826 return err;
827 }
828
6a581e93 829 netxen_request_firmware(adapter);
f7185c71 830
67c38fc6 831 err = netxen_need_fw_reset(adapter);
1dbc84a7 832 if (err < 0)
db4cfd8a 833 goto err_out;
1dbc84a7 834 if (err == 0)
8f9b3f69 835 goto wait_init;
67c38fc6 836
ba599d4f 837 if (first_boot != 0x55555555) {
f98a9f69 838 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 839 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 840 msleep(1);
841 }
567c6c4e 842
f98a9f69 843 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 844 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
845 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
846
567c6c4e
DP		 847 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
848 netxen_set_port_mode(adapter);
849
db4cfd8a
DP		 850 err = netxen_load_firmware(adapter);
851 if (err)
852 goto err_out;
ba599d4f 853
6a581e93
DP		 854 netxen_release_firmware(adapter);
855
ba599d4f
DP		 856 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
857
858 /* Initialize multicast addr pool owners */
859 val = 0x7654;
1e2d0059 860 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 861 val |= 0x0f000000;
f98a9f69 862 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 863
864 }
865
83ac51fa 866 err = netxen_init_dummy_dma(adapter);
ba599d4f 867 if (err)
db4cfd8a 868 goto err_out;
ba599d4f
DP		 869
870 /*
871 * Tell the hardware our version number.
872 */
873 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
874 | ((_NETXEN_NIC_LINUX_MINOR << 8))
875 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 876 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 877
96f2ebd2 878wait_init:
ba599d4f
DP		 879 /* Handshake with the card before we register the devices. */
880 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
881 if (err) {
83ac51fa 882 netxen_free_dummy_dma(adapter);
db4cfd8a 883 goto err_out;
ba599d4f
DP		 884 }
885
8f9b3f69
AKS		 886 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
887
68b3cae0
DP		 888 nx_update_dma_mask(adapter);
889
6a581e93 890 netxen_check_options(adapter);
68b3cae0 891
74c520da
AKS		 892 adapter->need_fw_reset = 0;
893
ec5c50cb 894 /* fall through and release firmware */
db4cfd8a
DP		 895
896err_out:
897 netxen_release_firmware(adapter);
898 return err;
ba599d4f
DP		 899}
900
9f5bc7f1
DP		 901static int
902netxen_nic_request_irq(struct netxen_adapter *adapter)
903{
904 irq_handler_t handler;
d8b100c5
DP		 905 struct nx_host_sds_ring *sds_ring;
906 int err, ring;
907
9f5bc7f1
DP		 908 unsigned long flags = IRQF_SAMPLE_RANDOM;
909 struct net_device *netdev = adapter->netdev;
d8b100c5 910 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 911
9f5bc7f1
DP		 912 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
913 handler = netxen_msix_intr;
914 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
915 handler = netxen_msi_intr;
916 else {
917 flags |= IRQF_SHARED;
918 handler = netxen_intr;
919 }
920 adapter->irq = netdev->irq;
921
d8b100c5
DP		 922 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
923 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 924 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 925 err = request_irq(sds_ring->irq, handler,
926 flags, sds_ring->name, sds_ring);
927 if (err)
928 return err;
929 }
930
931 return 0;
932}
933
934static void
935netxen_nic_free_irq(struct netxen_adapter *adapter)
936{
937 int ring;
938 struct nx_host_sds_ring *sds_ring;
939
940 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
941
942 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
943 sds_ring = &recv_ctx->sds_rings[ring];
944 free_irq(sds_ring->irq, sds_ring);
945 }
9f5bc7f1
DP		 946}
947
ca2ef330
DP		 948static void
949netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
950{
951 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
952 adapter->coal.normal.data.rx_time_us =
953 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
954 adapter->coal.normal.data.rx_packets =
955 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
956 adapter->coal.normal.data.tx_time_us =
957 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
958 adapter->coal.normal.data.tx_packets =
959 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
960}
961
6f771419 962/* with rtnl_lock */
9f5bc7f1 963static int
6f771419 964__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 965{
966 int err;
967
db4cfd8a
DP		 968 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
969 return -EIO;
970
9f5bc7f1
DP		 971 err = adapter->init_port(adapter, adapter->physical_port);
972 if (err) {
973 printk(KERN_ERR "%s: Failed to initialize port %d\n",
974 netxen_nic_driver_name, adapter->portnum);
975 return err;
976 }
3d0a3cc9 977 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 978 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 979
3d0a3cc9
DP		 980 adapter->set_multi(netdev);
981 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 982
983 adapter->ahw.linkup = 0;
9f5bc7f1 984
d8b100c5
DP		 985 if (adapter->max_sds_rings > 1)
986 netxen_config_rss(adapter, 1);
9f5bc7f1 987
ca2ef330
DP		 988 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
989 netxen_config_intr_coalesce(adapter);
990
e4baaf71 991 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 992 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
993
b2af9cb0
DP		 994 netxen_napi_enable(adapter);
995
5103c9f7 996 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 997 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 998 else
999 netxen_nic_set_link_parameters(adapter);
1000
6a581e93 1001 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1002 return 0;
1003}
1004
6f771419
AKS		 1005/* Usage: During resume and firmware recovery module.*/
1006
1007static inline int
1008netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1009{
1010 int err = 0;
1011
1012 rtnl_lock();
1013 if (netif_running(netdev))
1014 err = __netxen_nic_up(adapter, netdev);
1015 rtnl_unlock();
1016
1017 return err;
1018}
1019
1020/* with rtnl_lock */
9f5bc7f1 1021static void
6f771419 1022__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1023{
db4cfd8a
DP		 1024 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1025 return;
1026
f2251f66
AKS		 1027 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1028 return;
6a581e93 1029
f2251f66 1030 smp_mb();
b2af9cb0 1031 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1032 netif_carrier_off(netdev);
b2af9cb0 1033 netif_tx_disable(netdev);
9f5bc7f1
DP		 1034
1035 if (adapter->stop_port)
1036 adapter->stop_port(adapter);
1037
5cf4d323
DP		 1038 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1039 netxen_p3_free_mac_list(adapter);
1040
22b5794b
AKS		 1041 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1042
be339aee
DP		 1043 netxen_napi_disable(adapter);
1044
9f5bc7f1 1045 netxen_release_tx_buffers(adapter);
b2af9cb0 1046 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1047}
1048
6f771419
AKS		 1049/* Usage: During suspend and firmware recovery module */
1050
1051static inline void
1052netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1053{
1054 rtnl_lock();
1055 if (netif_running(netdev))
1056 __netxen_nic_down(adapter, netdev);
1057 rtnl_unlock();
1058
1059}
9f5bc7f1
DP		 1060
1061static int
1062netxen_nic_attach(struct netxen_adapter *adapter)
1063{
1064 struct net_device *netdev = adapter->netdev;
1065 struct pci_dev *pdev = adapter->pdev;
becf46a0 1066 int err, ring;
d8b100c5 1067 struct nx_host_rds_ring *rds_ring;
d877f1e3 1068 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1069
7042cd8f
AKS		 1070 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1071 return 0;
1072
9f5bc7f1 1073 err = netxen_init_firmware(adapter);
232e7d68
DP		 1074 if (err)
1075 return err;
1076
1077 err = netxen_napi_add(adapter, netdev);
1078 if (err)
1079 return err;
9f5bc7f1 1080
9f5bc7f1
DP		 1081 err = netxen_alloc_sw_resources(adapter);
1082 if (err) {
1083 printk(KERN_ERR "%s: Error in setting sw resources\n",
1084 netdev->name);
1085 return err;
1086 }
1087
9f5bc7f1
DP		 1088 err = netxen_alloc_hw_resources(adapter);
1089 if (err) {
1090 printk(KERN_ERR "%s: Error in setting hw resources\n",
1091 netdev->name);
1092 goto err_out_free_sw;
1093 }
1094
4f96b988 1095 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1096 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1097 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1098 crb_cmd_producer[adapter->portnum]);
1099 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1100 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1101
cb2107be
DP		 1102 tx_ring->producer = 0;
1103 tx_ring->sw_consumer = 0;
1104
1105 netxen_nic_update_cmd_producer(adapter, tx_ring);
1106 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1107 }
1108
d8b100c5
DP		 1109 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1110 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1111 netxen_post_rx_buffers(adapter, ring, rds_ring);
1112 }
9f5bc7f1
DP		 1113
1114 err = netxen_nic_request_irq(adapter);
1115 if (err) {
1116 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1117 netdev->name);
1118 goto err_out_free_rxbuf;
1119 }
1120
ca2ef330
DP		 1121 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1122 netxen_nic_init_coalesce_defaults(adapter);
1123
fa3ce355
NK		 1124 netxen_create_sysfs_entries(adapter);
1125
9f5bc7f1
DP		 1126 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1127 return 0;
1128
1129err_out_free_rxbuf:
1130 netxen_release_rx_buffers(adapter);
1131 netxen_free_hw_resources(adapter);
1132err_out_free_sw:
1133 netxen_free_sw_resources(adapter);
1134 return err;
1135}
1136
1137static void
1138netxen_nic_detach(struct netxen_adapter *adapter)
1139{
7042cd8f
AKS		 1140 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1141 return;
1142
fa3ce355
NK		 1143 netxen_remove_sysfs_entries(adapter);
1144
9f5bc7f1 1145 netxen_free_hw_resources(adapter);
cf981ffb 1146 netxen_release_rx_buffers(adapter);
be339aee 1147 netxen_nic_free_irq(adapter);
232e7d68 1148 netxen_napi_del(adapter);
9f5bc7f1
DP		 1149 netxen_free_sw_resources(adapter);
1150
1151 adapter->is_up = 0;
1152}
1153
7042cd8f
AKS		 1154int
1155netxen_nic_reset_context(struct netxen_adapter *adapter)
1156{
1157 int err = 0;
1158 struct net_device *netdev = adapter->netdev;
1159
6a581e93
DP		 1160 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1161 return -EBUSY;
1162
7042cd8f
AKS		 1163 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1164
6a581e93
DP		 1165 netif_device_detach(netdev);
1166
7042cd8f 1167 if (netif_running(netdev))
6f771419 1168 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1169
1170 netxen_nic_detach(adapter);
1171
6a581e93
DP		 1172 if (netif_running(netdev)) {
1173 err = netxen_nic_attach(adapter);
1174 if (!err)
6f771419 1175 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1176
6a581e93
DP		 1177 if (err)
1178 goto done;
1179 }
1180
1181 netif_device_attach(netdev);
7042cd8f 1182 }
6a581e93 1183
7042cd8f 1184done:
6a581e93 1185 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1186 return err;
1187}
1188
f17443f4
DP		 1189static int
1190netxen_setup_netdev(struct netxen_adapter *adapter,
1191 struct net_device *netdev)
1192{
1193 int err = 0;
1194 struct pci_dev *pdev = adapter->pdev;
1195
1196 adapter->rx_csum = 1;
1197 adapter->mc_enabled = 0;
1198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1199 adapter->max_mc_count = 38;
1200 else
1201 adapter->max_mc_count = 16;
1202
1203 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1204 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1205
1206 netxen_nic_change_mtu(netdev, netdev->mtu);
1207
1208 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1209
1210 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1211 netdev->features |= (NETIF_F_GRO);
1212 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1213
1214 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1215 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1216 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1217 }
1218
1219 if (adapter->pci_using_dac) {
1220 netdev->features |= NETIF_F_HIGHDMA;
1221 netdev->vlan_features |= NETIF_F_HIGHDMA;
1222 }
1223
028afe71
DP		 1224 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1225 netdev->features |= (NETIF_F_HW_VLAN_TX);
1226
1bb482f8
NK		 1227 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1228 netdev->features |= NETIF_F_LRO;
1229
f17443f4
DP		 1230 netdev->irq = adapter->msix_entries[0].vector;
1231
74c520da 1232 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1233
1234 if (netxen_read_mac_addr(adapter))
1235 dev_warn(&pdev->dev, "failed to read mac addr\n");
1236
1237 netif_carrier_off(netdev);
f17443f4
DP		 1238
1239 err = register_netdev(netdev);
1240 if (err) {
1241 dev_err(&pdev->dev, "failed to register net device\n");
1242 return err;
1243 }
1244
1245 return 0;
1246}
1247
dce87b96 1248#ifdef CONFIG_PCIEAER
1249static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1250{
1251 struct pci_dev *pdev = adapter->pdev;
1252 struct pci_dev *root = pdev->bus->self;
1253 u32 aer_pos;
1254
1255 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1256 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1257 return;
1258
1259 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1260 return;
1261
1262 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1263 if (!aer_pos)
1264 return;
1265
1266 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1267}
1268#endif
1269
3d396eb1
AK		 1270static int __devinit
1271netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1272{
1273 struct net_device *netdev = NULL;
1274 struct netxen_adapter *adapter = NULL;
2956640d 1275 int i = 0, err;
3176ff3e 1276 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1277 uint8_t revision_id;
5a6f95e6 1278 u32 val;
3d396eb1 1279
688328c7
EB		 1280 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1281 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1282 "will not be enabled.\n",
c25c0b9b 1283 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1284 return -ENODEV;
1285 }
1286
3d396eb1
AK		 1287 if ((err = pci_enable_device(pdev)))
1288 return err;
2956640d 1289
3d396eb1
AK		 1290 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1291 err = -ENODEV;
1292 goto err_out_disable_pdev;
1293 }
1294
1295 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1296 goto err_out_disable_pdev;
1297
e87ad553
AKS		 1298 if (NX_IS_REVISION_P3(pdev->revision))
1299 pci_enable_pcie_error_reporting(pdev);
1300
3d396eb1 1301 pci_set_master(pdev);
3176ff3e
MT		 1302
1303 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1304 if(!netdev) {
f17443f4
DP		 1305 dev_err(&pdev->dev, "failed to allocate net_device\n");
1306 err = -ENOMEM;
3176ff3e
MT		 1307 goto err_out_free_res;
1308 }
1309
3176ff3e
MT		 1310 SET_NETDEV_DEV(netdev, &pdev->dev);
1311
4cf1653a 1312 adapter = netdev_priv(netdev);
2956640d
DP		 1313 adapter->netdev = netdev;
1314 adapter->pdev = pdev;
13ba9c77 1315 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1316
1317 revision_id = pdev->revision;
1318 adapter->ahw.revision_id = revision_id;
1319
f03b0ebd
DP		 1320 rwlock_init(&adapter->ahw.crb_lock);
1321 spin_lock_init(&adapter->ahw.mem_lock);
1322
d8b100c5 1323 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1324 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1325
97daee83
DP		 1326 err = netxen_setup_pci_map(adapter);
1327 if (err)
6c80b18d 1328 goto err_out_free_netdev;
3d396eb1 1329
2d1a3bbd 1330 /* This will be reset for mezz cards */
3176ff3e 1331 adapter->portnum = pci_func_id;
3176ff3e 1332
f17443f4
DP		 1333 err = netxen_nic_get_board_info(adapter);
1334 if (err) {
1335 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1336 goto err_out_iounmap;
1337 }
6c80b18d 1338
dce87b96 1339#ifdef CONFIG_PCIEAER
1340 netxen_mask_aer_correctable(adapter);
1341#endif
1342
13ba9c77 1343 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1344 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1345 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1346 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1347 if (pci_func_id >= 2)
13ba9c77 1348 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1349 break;
1350 default:
1351 break;
1352 }
13ba9c77 1353
5a6f95e6
RB		 1354 if (adapter->portnum == 0) {
1355 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1356 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1357 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1358 adapter->need_fw_reset = 1;
1359 }
1360 }
1361
6a581e93 1362 err = netxen_start_firmware(adapter);
0b72e659 1363 if (err)
8f9b3f69 1364 goto err_out_decr_ref;
f17443f4 1365
3d396eb1 1366 /*
6c80b18d 1367 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1368 */
dcd56fdb 1369 adapter->physical_port = adapter->portnum;
4f96b988 1370 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1371 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1372 if (i != 0x55555555)
1373 adapter->physical_port = i;
1374 }
6c80b18d 1375
6a581e93 1376 netxen_nic_clear_stats(adapter);
2956640d 1377
97daee83 1378 netxen_setup_intr(adapter);
2956640d 1379
f17443f4 1380 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1381 if (err)
2956640d 1382 goto err_out_disable_msi;
6c80b18d
MT		 1383
1384 pci_set_drvdata(pdev, adapter);
3d396eb1 1385
6a581e93
DP		 1386 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1387
1e2d0059 1388 switch (adapter->ahw.port_type) {
2956640d
DP		 1389 case NETXEN_NIC_GBE:
1390 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1391 adapter->netdev->name);
1392 break;
1393 case NETXEN_NIC_XGBE:
1394 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1395 adapter->netdev->name);
1396 break;
3d396eb1 1397 }
3d396eb1 1398
70f9cf89
DP		 1399 netxen_create_diag_entries(adapter);
1400
2956640d
DP		 1401 return 0;
1402
1403err_out_disable_msi:
97daee83 1404 netxen_teardown_intr(adapter);
6c80b18d 1405
83ac51fa 1406 netxen_free_dummy_dma(adapter);
3d396eb1 1407
8f9b3f69 1408err_out_decr_ref:
6a581e93
DP		 1409 nx_decr_dev_ref_cnt(adapter);
1410
2956640d 1411err_out_iounmap:
97daee83 1412 netxen_cleanup_pci_map(adapter);
cb8011ad 1413
6c80b18d
MT		 1414err_out_free_netdev:
1415 free_netdev(netdev);
1416
1417err_out_free_res:
3d396eb1 1418 pci_release_regions(pdev);
6c80b18d
MT		 1419
1420err_out_disable_pdev:
2956640d 1421 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1422 pci_disable_device(pdev);
1423 return err;
1424}
1425
1426static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1427{
1428 struct netxen_adapter *adapter;
3176ff3e 1429 struct net_device *netdev;
3d396eb1 1430
6c80b18d 1431 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1432 if (adapter == NULL)
1433 return;
1434
6c80b18d
MT		 1435 netdev = adapter->netdev;
1436
6a581e93
DP		 1437 netxen_cancel_fw_work(adapter);
1438
96acb6eb
DP		 1439 unregister_netdev(netdev);
1440
e424fa9d
AKS		 1441 cancel_work_sync(&adapter->tx_timeout_task);
1442
7042cd8f 1443 netxen_nic_detach(adapter);
3d396eb1 1444
6a581e93
DP		 1445 nx_decr_dev_ref_cnt(adapter);
1446
439b454e 1447 if (adapter->portnum == 0)
83ac51fa 1448 netxen_free_dummy_dma(adapter);
96acb6eb 1449
6a581e93
DP		 1450 clear_bit(__NX_RESETTING, &adapter->state);
1451
97daee83 1452 netxen_teardown_intr(adapter);
3052246c 1453
70f9cf89
DP		 1454 netxen_remove_diag_entries(adapter);
1455
97daee83 1456 netxen_cleanup_pci_map(adapter);
595e3fb8 1457
f7185c71
DP		 1458 netxen_release_firmware(adapter);
1459
e87ad553
AKS		 1460 if (NX_IS_REVISION_P3(pdev->revision))
1461 pci_disable_pcie_error_reporting(pdev);
1462
595e3fb8 1463 pci_release_regions(pdev);
3052246c 1464 pci_disable_device(pdev);
595e3fb8
MT		 1465 pci_set_drvdata(pdev, NULL);
1466
6c80b18d 1467 free_netdev(netdev);
3d396eb1 1468}
e87ad553
AKS		 1469
1470static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1471{
0b72e659
DP		 1472 struct net_device *netdev = adapter->netdev;
1473
1474 netif_device_detach(netdev);
1475
6a581e93
DP		 1476 netxen_cancel_fw_work(adapter);
1477
0b72e659
DP		 1478 if (netif_running(netdev))
1479 netxen_nic_down(adapter, netdev);
1480
e424fa9d
AKS		 1481 cancel_work_sync(&adapter->tx_timeout_task);
1482
7042cd8f 1483 netxen_nic_detach(adapter);
0b72e659 1484
22b5794b
AKS		 1485 if (adapter->portnum == 0)
1486 netxen_free_dummy_dma(adapter);
1487
6a581e93
DP		 1488 nx_decr_dev_ref_cnt(adapter);
1489
1490 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1491}
0b72e659 1492
e87ad553 1493static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1494{
1495 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1496 struct net_device *netdev = adapter->netdev;
1497 int err;
1498
0b72e659
DP		 1499 err = pci_enable_device(pdev);
1500 if (err)
1501 return err;
1502
bc86fcba
AKS		 1503 pci_set_power_state(pdev, PCI_D0);
1504 pci_set_master(pdev);
1505 pci_restore_state(pdev);
1506
907fa120 1507 adapter->ahw.crb_win = -1;
47abe356 1508 adapter->ahw.ocm_win = -1;
0b72e659 1509
6a581e93 1510 err = netxen_start_firmware(adapter);
0b72e659
DP		 1511 if (err) {
1512 dev_err(&pdev->dev, "failed to start firmware\n");
1513 return err;
1514 }
1515
1516 if (netif_running(netdev)) {
1517 err = netxen_nic_attach(adapter);
1518 if (err)
6a581e93 1519 goto err_out;
0b72e659
DP		 1520
1521 err = netxen_nic_up(adapter, netdev);
1522 if (err)
6a581e93 1523 goto err_out_detach;
0b72e659 1524
d0725e4d 1525 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1526 }
1527
bc86fcba 1528 netif_device_attach(netdev);
6a581e93 1529 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1530 return 0;
6a581e93
DP		 1531
1532err_out_detach:
1533 netxen_nic_detach(adapter);
1534err_out:
1535 nx_decr_dev_ref_cnt(adapter);
1536 return err;
0b72e659 1537}
e87ad553
AKS		 1538
1539static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1540 pci_channel_state_t state)
1541{
1542 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1543
1544 if (state == pci_channel_io_perm_failure)
1545 return PCI_ERS_RESULT_DISCONNECT;
1546
1547 if (nx_dev_request_aer(adapter))
1548 return PCI_ERS_RESULT_RECOVERED;
1549
1550 netxen_nic_detach_func(adapter);
1551
1552 pci_disable_device(pdev);
1553
1554 return PCI_ERS_RESULT_NEED_RESET;
1555}
1556
1557static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1558{
1559 int err = 0;
1560
1561 err = netxen_nic_attach_func(pdev);
1562
1563 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1564}
1565
1566static void netxen_io_resume(struct pci_dev *pdev)
1567{
1568 pci_cleanup_aer_uncorrect_error_status(pdev);
1569}
1570
1571static void netxen_nic_shutdown(struct pci_dev *pdev)
1572{
1573 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1574
1575 netxen_nic_detach_func(adapter);
1576
1577 if (pci_save_state(pdev))
1578 return;
1579
1580 if (netxen_nic_wol_supported(adapter)) {
1581 pci_enable_wake(pdev, PCI_D3cold, 1);
1582 pci_enable_wake(pdev, PCI_D3hot, 1);
1583 }
1584
1585 pci_disable_device(pdev);
1586}
1587
1588#ifdef CONFIG_PM
1589static int
1590netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1591{
1592 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1593 int retval;
1594
1595 netxen_nic_detach_func(adapter);
1596
1597 retval = pci_save_state(pdev);
1598 if (retval)
1599 return retval;
1600
1601 if (netxen_nic_wol_supported(adapter)) {
1602 pci_enable_wake(pdev, PCI_D3cold, 1);
1603 pci_enable_wake(pdev, PCI_D3hot, 1);
1604 }
1605
1606 pci_disable_device(pdev);
1607 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1608
1609 return 0;
1610}
1611
1612static int
1613netxen_nic_resume(struct pci_dev *pdev)
1614{
1615 return netxen_nic_attach_func(pdev);
1616}
01542cd1 1617#endif
0b72e659 1618
3d396eb1
AK		 1619static int netxen_nic_open(struct net_device *netdev)
1620{
4cf1653a 1621 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1622 int err = 0;
3d396eb1 1623
dcd56fdb
DP		 1624 if (adapter->driver_mismatch)
1625 return -EIO;
1626
7042cd8f
AKS		 1627 err = netxen_nic_attach(adapter);
1628 if (err)
1629 return err;
2956640d 1630
6f771419 1631 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1632 if (err)
1633 goto err_out;
05aaa02d 1634
dcd56fdb 1635 netif_start_queue(netdev);
3d396eb1
AK		 1636
1637 return 0;
2956640d 1638
9f5bc7f1
DP		 1639err_out:
1640 netxen_nic_detach(adapter);
2956640d 1641 return err;
3d396eb1
AK		 1642}
1643
1644/*
1645 * netxen_nic_close - Disables a network interface entry point
1646 */
1647static int netxen_nic_close(struct net_device *netdev)
1648{
3176ff3e 1649 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1650
6f771419 1651 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1652 return 0;
1653}
1654
1bcfd790
DP		 1655static void
1656netxen_tso_check(struct net_device *netdev,
1657 struct nx_host_tx_ring *tx_ring,
1658 struct cmd_desc_type0 *first_desc,
1659 struct sk_buff *skb)
cd1f8160 1660{
391587c3 1661 u8 opcode = TX_ETHER_PKT;
cdff1036 1662 __be16 protocol = skb->protocol;
028afe71 1663 u16 flags = 0, vid = 0;
1bcfd790 1664 u32 producer;
028afe71 1665 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1666 struct cmd_desc_type0 *hwdesc;
028afe71 1667 struct vlan_ethhdr *vh;
cdff1036 1668
09640e63 1669 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1670
1671 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1672 protocol = vh->h_vlan_encapsulated_proto;
1673 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1674
1675 } else if (vlan_tx_tag_present(skb)) {
1676
1677 flags = FLAGS_VLAN_OOB;
1678 vid = vlan_tx_tag_get(skb);
1679 netxen_set_tx_vlan_tci(first_desc, vid);
1680 vlan_oob = 1;
cdff1036 1681 }
cd1f8160 1682
391587c3
DP		 1683 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1684 skb_shinfo(skb)->gso_size > 0) {
1685
1bcfd790
DP		 1686 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1687
1688 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1689 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1690 if (vlan_oob) {
1691 first_desc->total_hdr_length += VLAN_HLEN;
1692 first_desc->tcp_hdr_offset = VLAN_HLEN;
1693 first_desc->ip_hdr_offset = VLAN_HLEN;
1694 /* Only in case of TSO on vlan device */
1695 flags |= FLAGS_VLAN_TAGGED;
1696 }
391587c3 1697
09640e63 1698 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1699 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1700 tso = 1;
cd1f8160
DP		 1701
1702 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1703 u8 l4proto;
1704
09640e63 1705 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1706 l4proto = ip_hdr(skb)->protocol;
1707
1708 if (l4proto == IPPROTO_TCP)
1709 opcode = TX_TCP_PKT;
1710 else if(l4proto == IPPROTO_UDP)
1711 opcode = TX_UDP_PKT;
09640e63 1712 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1713 l4proto = ipv6_hdr(skb)->nexthdr;
1714
1715 if (l4proto == IPPROTO_TCP)
1716 opcode = TX_TCPV6_PKT;
1717 else if(l4proto == IPPROTO_UDP)
1718 opcode = TX_UDPV6_PKT;
1719 }
cd1f8160 1720 }
028afe71
DP		 1721
1722 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1723 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1724 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1725
1726 if (!tso)
1727 return;
1728
1729 /* For LSO, we need to copy the MAC/IP/TCP headers into
1730 * the descriptor ring
1731 */
1732 producer = tx_ring->producer;
1733 copied = 0;
1734 offset = 2;
1735
028afe71
DP		 1736 if (vlan_oob) {
1737 /* Create a TSO vlan header template for firmware */
1738
1739 hwdesc = &tx_ring->desc_head[producer];
1740 tx_ring->cmd_buf_arr[producer].skb = NULL;
1741
1742 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1743 hdr_len + VLAN_HLEN);
1744
1745 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1746 skb_copy_from_linear_data(skb, vh, 12);
1747 vh->h_vlan_proto = htons(ETH_P_8021Q);
1748 vh->h_vlan_TCI = htons(vid);
1749 skb_copy_from_linear_data_offset(skb, 12,
1750 (char *)vh + 16, copy_len - 16);
1751
545eb370 1752 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1753 offset = 0;
1754
1755 producer = get_next_index(producer, tx_ring->num_desc);
1756 }
1757
1bcfd790
DP		 1758 while (copied < hdr_len) {
1759
1760 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1761 (hdr_len - copied));
1762
1763 hwdesc = &tx_ring->desc_head[producer];
1764 tx_ring->cmd_buf_arr[producer].skb = NULL;
1765
1766 skb_copy_from_linear_data_offset(skb, copied,
1767 (char *)hwdesc + offset, copy_len);
1768
1769 copied += copy_len;
1770 offset = 0;
1771
1772 producer = get_next_index(producer, tx_ring->num_desc);
1773 }
1774
1775 tx_ring->producer = producer;
1776 barrier();
cd1f8160
DP		 1777}
1778
ce644ed4
DP		 1779static int
1780netxen_map_tx_skb(struct pci_dev *pdev,
1781 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1782{
ce644ed4
DP		 1783 struct netxen_skb_frag *nf;
1784 struct skb_frag_struct *frag;
1785 int i, nr_frags;
1786 dma_addr_t map;
1787
1788 nr_frags = skb_shinfo(skb)->nr_frags;
1789 nf = &pbuf->frag_array[0];
1790
1791 map = pci_map_single(pdev, skb->data,
1792 skb_headlen(skb), PCI_DMA_TODEVICE);
1793 if (pci_dma_mapping_error(pdev, map))
1794 goto out_err;
6f703406 1795
ce644ed4
DP		 1796 nf->dma = map;
1797 nf->length = skb_headlen(skb);
1798
1799 for (i = 0; i < nr_frags; i++) {
1800 frag = &skb_shinfo(skb)->frags[i];
1801 nf = &pbuf->frag_array[i+1];
1802
1803 map = pci_map_page(pdev, frag->page, frag->page_offset,
1804 frag->size, PCI_DMA_TODEVICE);
1805 if (pci_dma_mapping_error(pdev, map))
1806 goto unwind;
1807
1808 nf->dma = map;
1809 nf->length = frag->size;
1810 }
1811
1812 return 0;
6f703406 1813
ce644ed4 1814unwind:
cf503e8f
DP		 1815 while (--i >= 0) {
1816 nf = &pbuf->frag_array[i+1];
ce644ed4 1817 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1818 }
ce644ed4
DP		 1819
1820 nf = &pbuf->frag_array[0];
1821 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1822
1823out_err:
1824 return -ENOMEM;
6f703406
DP		 1825}
1826
d32cc3d2
DP		 1827static inline void
1828netxen_clear_cmddesc(u64 *desc)
1829{
1bcfd790
DP		 1830 desc[0] = 0ULL;
1831 desc[2] = 0ULL;
d32cc3d2
DP		 1832}
1833
61357325 1834static netdev_tx_t
d32cc3d2 1835netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1836{
3176ff3e 1837 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1838 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1839 struct netxen_cmd_buffer *pbuf;
3d396eb1 1840 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1841 struct cmd_desc_type0 *hwdesc, *first_desc;
1842 struct pci_dev *pdev;
391587c3 1843 int i, k;
3d396eb1 1844
cb2107be 1845 u32 producer;
ce644ed4 1846 int frag_count, no_of_desc;
d877f1e3 1847 u32 num_txd = tx_ring->num_desc;
3d396eb1 1848
3d396eb1
AK		 1849 frag_count = skb_shinfo(skb)->nr_frags + 1;
1850
d877f1e3 1851 /* 4 fragments per cmd des */
3d396eb1 1852 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1853
7a9905e6 1854 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 1855 netif_stop_queue(netdev);
7a9905e6
RB		 1856 smp_mb();
1857 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1858 netif_start_queue(netdev);
1859 else
1860 return NETDEV_TX_BUSY;
53a01e00 1861 }
3d396eb1 1862
cb2107be 1863 producer = tx_ring->producer;
ce644ed4 1864 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1865
1bcfd790 1866 pdev = adapter->pdev;
391587c3 1867
ce644ed4 1868 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1869 goto drop_packet;
391587c3 1870
3d396eb1 1871 pbuf->skb = skb;
3d396eb1 1872 pbuf->frag_count = frag_count;
6f703406 1873
1bcfd790
DP		 1874 first_desc = hwdesc = &tx_ring->desc_head[producer];
1875 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1876
ce644ed4
DP		 1877 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1878 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1879
ce644ed4 1880 for (i = 0; i < frag_count; i++) {
3d396eb1 1881
ce644ed4
DP		 1882 k = i % 4;
1883
1884 if ((k == 0) && (i > 0)) {
1885 /* move to next desc.*/
ba53e6b4 1886 producer = get_next_index(producer, num_txd);
d877f1e3 1887 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1888 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1889 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1890 }
3d396eb1 1891
ce644ed4 1892 buffrag = &pbuf->frag_array[i];
3d396eb1 1893
ce644ed4 1894 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1895 switch (k) {
1896 case 0:
ce644ed4 1897 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1898 break;
1899 case 1:
ce644ed4 1900 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1901 break;
1902 case 2:
ce644ed4 1903 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1904 break;
1905 case 3:
ce644ed4 1906 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1907 break;
1908 }
3d396eb1 1909 }
ce644ed4 1910
1bcfd790 1911 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1912
1bcfd790 1913 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1914
cb2107be 1915 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1916
1bcfd790 1917 adapter->stats.txbytes += skb->len;
ba53e6b4 1918 adapter->stats.xmitcalled++;
3d396eb1 1919
3d396eb1 1920 return NETDEV_TX_OK;
6f703406
DP		 1921
1922drop_packet:
1923 adapter->stats.txdropped++;
1924 dev_kfree_skb_any(skb);
1925 return NETDEV_TX_OK;
3d396eb1
AK		 1926}
1927
a97342f9
DP		 1928static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1929{
1930 struct net_device *netdev = adapter->netdev;
1931 uint32_t temp, temp_state, temp_val;
1932 int rv = 0;
1933
f98a9f69 1934 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1935
1936 temp_state = nx_get_temp_state(temp);
1937 temp_val = nx_get_temp_val(temp);
1938
1939 if (temp_state == NX_TEMP_PANIC) {
1940 printk(KERN_ALERT
1941 "%s: Device temperature %d degrees C exceeds"
1942 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1943 netdev->name, temp_val);
a97342f9
DP		 1944 rv = 1;
1945 } else if (temp_state == NX_TEMP_WARN) {
1946 if (adapter->temp == NX_TEMP_NORMAL) {
1947 printk(KERN_ALERT
1948 "%s: Device temperature %d degrees C "
1949 "exceeds operating range."
1950 " Immediate action needed.\n",
e4135c2d 1951 netdev->name, temp_val);
a97342f9
DP		 1952 }
1953 } else {
1954 if (adapter->temp == NX_TEMP_WARN) {
1955 printk(KERN_INFO
1956 "%s: Device temperature is now %d degrees C"
e4135c2d 1957 " in normal range.\n", netdev->name,
a97342f9
DP		 1958 temp_val);
1959 }
1960 }
1961 adapter->temp = temp_state;
1962 return rv;
1963}
1964
3bf26ce3 1965void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1966{
1967 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1968
1969 if (adapter->ahw.linkup && !linkup) {
1970 printk(KERN_INFO "%s: %s NIC Link is down\n",
1971 netxen_nic_driver_name, netdev->name);
1972 adapter->ahw.linkup = 0;
1973 if (netif_running(netdev)) {
1974 netif_carrier_off(netdev);
1975 netif_stop_queue(netdev);
1976 }
e424fa9d 1977 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1978 } else if (!adapter->ahw.linkup && linkup) {
1979 printk(KERN_INFO "%s: %s NIC Link is up\n",
1980 netxen_nic_driver_name, netdev->name);
1981 adapter->ahw.linkup = 1;
1982 if (netif_running(netdev)) {
1983 netif_carrier_on(netdev);
1984 netif_wake_queue(netdev);
1985 }
e424fa9d 1986 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1987 }
1988}
1989
3bf26ce3
DP		 1990static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1991{
1992 u32 val, port, linkup;
1993
1994 port = adapter->physical_port;
1995
1996 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1997 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1998 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1999 linkup = (val == XG_LINK_UP_P3);
2000 } else {
f98a9f69 2001 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2002 val = (val >> port*8) & 0xff;
2003 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2004 }
2005
2006 netxen_advert_link_change(adapter, linkup);
2007}
2008
3d396eb1
AK		 2009static void netxen_tx_timeout(struct net_device *netdev)
2010{
e424fa9d 2011 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2012
6a581e93
DP		 2013 if (test_bit(__NX_RESETTING, &adapter->state))
2014 return;
2015
f17443f4 2016 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2017 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2018}
2019
74c520da 2020static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2021{
4790654c 2022 struct netxen_adapter *adapter =
3176ff3e 2023 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2024
b2af9cb0
DP		 2025 if (!netif_running(adapter->netdev))
2026 return;
2027
74c520da 2028 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2029 return;
2030
74c520da
AKS		 2031 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2032 goto request_reset;
2033
16d884bd 2034 rtnl_lock();
74c520da
AKS		 2035 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2036 /* try to scrub interrupt */
2037 netxen_napi_disable(adapter);
ba53e6b4 2038
74c520da
AKS		 2039 netxen_napi_enable(adapter);
2040
2041 netif_wake_queue(adapter->netdev);
2042
a598ae17 2043 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2044 } else {
a598ae17 2045 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2046 if (netxen_nic_reset_context(adapter)) {
2047 rtnl_unlock();
2048 goto request_reset;
74c520da 2049 }
74c520da 2050 }
16d884bd
AKS		 2051 adapter->netdev->trans_start = jiffies;
2052 rtnl_unlock();
2053 return;
74c520da
AKS		 2054
2055request_reset:
2056 adapter->need_fw_reset = 1;
ff8a306d 2057 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2058}
2059
7e12bb0a 2060static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
a97342f9
DP		 2061{
2062 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 2063 struct net_device_stats *stats = &netdev->stats;
a97342f9 2064
1bb482f8 2065 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2066 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2067 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2068 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2069 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2070 stats->tx_dropped = adapter->stats.txdropped;
2071
2072 return stats;
2073}
2074
e4c93c81 2075static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2076{
d8b100c5
DP		 2077 struct nx_host_sds_ring *sds_ring = data;
2078 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2079 u32 status = 0;
2080
195c5f98 2081 status = readl(adapter->isr_int_vec);
d71e1be8 2082
195c5f98 2083 if (!(status & adapter->int_vec_bit))
05aaa02d 2084 return IRQ_NONE;
e01872af 2085
195c5f98 2086 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2087 /* check interrupt state machine, to be sure */
195c5f98 2088 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2089 if (!ISR_LEGACY_INT_TRIGGERED(status))
2090 return IRQ_NONE;
2091
092bc571
DP		 2092 } else {
2093 unsigned long our_int = 0;
d71e1be8 2094
195c5f98 2095 our_int = readl(adapter->crb_int_state_reg);
092bc571 2096
d71e1be8 2097 /* not our interrupt */
092bc571 2098 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2099 return IRQ_NONE;
2100
092bc571 2101 /* claim interrupt */
195c5f98 2102 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2103
195c5f98 2104 /* clear interrupt */
d8b100c5 2105 netxen_nic_disable_int(sds_ring);
195c5f98 2106 }
092bc571 2107
195c5f98 2108 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2109 /* read twice to ensure write is flushed */
195c5f98
AKS		 2110 readl(adapter->isr_int_vec);
2111 readl(adapter->isr_int_vec);
092bc571 2112
d8b100c5 2113 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2114
2115 return IRQ_HANDLED;
2116}
2117
e4c93c81 2118static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2119{
d8b100c5
DP		 2120 struct nx_host_sds_ring *sds_ring = data;
2121 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2122
092bc571 2123 /* clear interrupt */
195c5f98 2124 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2125
d8b100c5 2126 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2127 return IRQ_HANDLED;
2128}
2129
b3df68f8
DP		 2130static irqreturn_t netxen_msix_intr(int irq, void *data)
2131{
d8b100c5 2132 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2133
d8b100c5 2134 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2135 return IRQ_HANDLED;
2136}
2137
bea3348e 2138static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2139{
d8b100c5
DP		 2140 struct nx_host_sds_ring *sds_ring =
2141 container_of(napi, struct nx_host_sds_ring, napi);
2142
2143 struct netxen_adapter *adapter = sds_ring->adapter;
2144
05aaa02d 2145 int tx_complete;
bea3348e 2146 int work_done;
3d396eb1 2147
05aaa02d 2148 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2149
d8b100c5 2150 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2151
05aaa02d 2152 if ((work_done < budget) && tx_complete) {
d8b100c5 2153 napi_complete(&sds_ring->napi);
f2251f66 2154 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2155 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2156 }
2157
bea3348e 2158 return work_done;
3d396eb1
AK		 2159}
2160
2161#ifdef CONFIG_NET_POLL_CONTROLLER
2162static void netxen_nic_poll_controller(struct net_device *netdev)
2163{
7b589a35
YL		 2164 int ring;
2165 struct nx_host_sds_ring *sds_ring;
3176ff3e 2166 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2167 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2168
3d396eb1 2169 disable_irq(adapter->irq);
7b589a35
YL		 2170 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2171 sds_ring = &recv_ctx->sds_rings[ring];
2172 netxen_intr(adapter->irq, sds_ring);
2173 }
3d396eb1
AK		 2174 enable_irq(adapter->irq);
2175}
2176#endif
3d396eb1 2177
6a581e93
DP		 2178static int
2179nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2180{
2181 int count;
2182 if (netxen_api_lock(adapter))
2183 return -EIO;
2184
2185 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2186
2187 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2188
2189 netxen_api_unlock(adapter);
2190 return count;
2191}
2192
2193static int
2194nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2195{
2196 int count;
2197 if (netxen_api_lock(adapter))
2198 return -EIO;
2199
2200 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2201 WARN_ON(count == 0);
2202
2203 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2204
2205 if (count == 0)
2206 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2207
2208 netxen_api_unlock(adapter);
2209 return count;
2210}
2211
e87ad553
AKS		 2212static int
2213nx_dev_request_aer(struct netxen_adapter *adapter)
2214{
2215 u32 state;
2216 int ret = -EINVAL;
2217
2218 if (netxen_api_lock(adapter))
2219 return ret;
2220
2221 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2222
2223 if (state == NX_DEV_NEED_AER)
2224 ret = 0;
2225 else if (state == NX_DEV_READY) {
2226 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2227 ret = 0;
2228 }
2229
2230 netxen_api_unlock(adapter);
2231 return ret;
2232}
2233
2234static int
74c520da
AKS		 2235nx_dev_request_reset(struct netxen_adapter *adapter)
2236{
2237 u32 state;
e87ad553 2238 int ret = -EINVAL;
74c520da
AKS		 2239
2240 if (netxen_api_lock(adapter))
e87ad553 2241 return ret;
74c520da
AKS		 2242
2243 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2244
e87ad553
AKS		 2245 if (state == NX_DEV_NEED_RESET)
2246 ret = 0;
2247 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2248 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
e87ad553
AKS		 2249 ret = 0;
2250 }
74c520da
AKS		 2251
2252 netxen_api_unlock(adapter);
e87ad553
AKS		 2253
2254 return ret;
74c520da
AKS		 2255}
2256
6a581e93
DP		 2257static int
2258netxen_can_start_firmware(struct netxen_adapter *adapter)
2259{
2260 int count;
2261 int can_start = 0;
2262
2263 if (netxen_api_lock(adapter))
2264 return 0;
2265
2266 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2267
2268 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2269 count = 0;
2270
2271 if (count == 0) {
2272 can_start = 1;
2273 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2274 }
2275
2276 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2277
2278 netxen_api_unlock(adapter);
2279
2280 return can_start;
2281}
2282
2283static void
2284netxen_schedule_work(struct netxen_adapter *adapter,
2285 work_func_t func, int delay)
2286{
2287 INIT_DELAYED_WORK(&adapter->fw_work, func);
2288 schedule_delayed_work(&adapter->fw_work, delay);
2289}
2290
2291static void
2292netxen_cancel_fw_work(struct netxen_adapter *adapter)
2293{
2294 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2295 msleep(10);
2296
2297 cancel_delayed_work_sync(&adapter->fw_work);
2298}
2299
2300static void
2301netxen_attach_work(struct work_struct *work)
2302{
2303 struct netxen_adapter *adapter = container_of(work,
2304 struct netxen_adapter, fw_work.work);
2305 struct net_device *netdev = adapter->netdev;
2306 int err = 0;
2307
2308 if (netif_running(netdev)) {
2309 err = netxen_nic_attach(adapter);
2310 if (err)
2311 goto done;
2312
2313 err = netxen_nic_up(adapter, netdev);
2314 if (err) {
2315 netxen_nic_detach(adapter);
2316 goto done;
2317 }
2318
d0725e4d 2319 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2320 }
2321
2322 netif_device_attach(netdev);
2323
2324done:
2325 adapter->fw_fail_cnt = 0;
2326 clear_bit(__NX_RESETTING, &adapter->state);
2327 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2328}
2329
2330static void
2331netxen_fwinit_work(struct work_struct *work)
2332{
2333 struct netxen_adapter *adapter = container_of(work,
2334 struct netxen_adapter, fw_work.work);
2335 int dev_state;
2336
2337 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2338
2339 switch (dev_state) {
2340 case NX_DEV_COLD:
2341 case NX_DEV_READY:
74c520da
AKS		 2342 if (!netxen_start_firmware(adapter)) {
2343 netxen_schedule_work(adapter, netxen_attach_work, 0);
2344 return;
2345 }
2346 break;
6a581e93 2347
6b50ea15 2348 case NX_DEV_NEED_RESET:
6a581e93
DP		 2349 case NX_DEV_INITALIZING:
2350 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2351 netxen_schedule_work(adapter,
2352 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2353 return;
2354 }
6a581e93
DP		 2355
2356 case NX_DEV_FAILED:
2357 default:
8f9b3f69 2358 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2359 break;
2360 }
2361
6a581e93
DP		 2362 clear_bit(__NX_RESETTING, &adapter->state);
2363}
2364
2365static void
2366netxen_detach_work(struct work_struct *work)
2367{
2368 struct netxen_adapter *adapter = container_of(work,
2369 struct netxen_adapter, fw_work.work);
2370 struct net_device *netdev = adapter->netdev;
2371 int ref_cnt, delay;
2372 u32 status;
2373
2374 netif_device_detach(netdev);
2375
6f771419 2376 netxen_nic_down(adapter, netdev);
6a581e93 2377
e15eec28 2378 rtnl_lock();
6a581e93 2379 netxen_nic_detach(adapter);
e15eec28 2380 rtnl_unlock();
6a581e93
DP		 2381
2382 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2383
6a581e93 2384 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2385 goto err_ret;
6a581e93
DP		 2386
2387 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2388 goto err_ret;
2389
2390 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2391
6b50ea15
AKS		 2392 if (ref_cnt == -EIO)
2393 goto err_ret;
2394
6a581e93
DP		 2395 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2396
2397 adapter->fw_wait_cnt = 0;
2398 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2399
2400 return;
2401
2402err_ret:
2403 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2404}
2405
2406static int
2407netxen_check_health(struct netxen_adapter *adapter)
2408{
2409 u32 state, heartbit;
2410 struct net_device *netdev = adapter->netdev;
2411
e87ad553
AKS		 2412 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2413 if (state == NX_DEV_NEED_AER)
2414 return 0;
2415
6a581e93
DP		 2416 if (netxen_nic_check_temp(adapter))
2417 goto detach;
2418
74c520da 2419 if (adapter->need_fw_reset) {
e87ad553
AKS		 2420 if (nx_dev_request_reset(adapter))
2421 return 0;
74c520da
AKS		 2422 goto detach;
2423 }
2424
e87ad553
AKS		 2425 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2426 * 1. Tx timeout 2. Fw hang
2427 * Send request to destroy context in case of tx timeout only
2428 * and doesn't required in case of Fw hang
2429 */
6a808c6c
AKS		 2430 if (state == NX_DEV_NEED_RESET) {
2431 adapter->need_fw_reset = 1;
e87ad553
AKS		 2432 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2433 goto detach;
6a808c6c 2434 }
6a581e93
DP		 2435
2436 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2437 return 0;
2438
2439 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2440 if (heartbit != adapter->heartbit) {
2441 adapter->heartbit = heartbit;
2442 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2443 if (adapter->need_fw_reset)
2444 goto detach;
6a581e93
DP		 2445 return 0;
2446 }
2447
2448 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2449 return 0;
2450
e87ad553
AKS		 2451 if (nx_dev_request_reset(adapter))
2452 return 0;
2453
6a581e93
DP		 2454 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2455
2456 dev_info(&netdev->dev, "firmware hang detected\n");
2457
2458detach:
caa2dd53
NK		 2459 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2460 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2461 netxen_schedule_work(adapter, netxen_detach_work, 0);
2462 return 1;
2463}
2464
2465static void
2466netxen_fw_poll_work(struct work_struct *work)
2467{
2468 struct netxen_adapter *adapter = container_of(work,
2469 struct netxen_adapter, fw_work.work);
2470
2471 if (test_bit(__NX_RESETTING, &adapter->state))
2472 goto reschedule;
2473
2474 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2475 if (!adapter->has_link_events) {
2476
2477 netxen_nic_handle_phy_intr(adapter);
2478
2479 if (adapter->link_changed)
2480 netxen_nic_set_link_parameters(adapter);
2481 }
2482 }
2483
2484 if (netxen_check_health(adapter))
2485 return;
2486
2487reschedule:
2488 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2489}
2490
fa3ce355
NK		 2491static ssize_t
2492netxen_store_bridged_mode(struct device *dev,
2493 struct device_attribute *attr, const char *buf, size_t len)
2494{
2495 struct net_device *net = to_net_dev(dev);
2496 struct netxen_adapter *adapter = netdev_priv(net);
2497 unsigned long new;
2498 int ret = -EINVAL;
2499
2500 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2501 goto err_out;
2502
2503 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2504 goto err_out;
2505
2506 if (strict_strtoul(buf, 2, &new))
2507 goto err_out;
2508
2509 if (!netxen_config_bridged_mode(adapter, !!new))
2510 ret = len;
2511
2512err_out:
2513 return ret;
2514}
2515
2516static ssize_t
2517netxen_show_bridged_mode(struct device *dev,
2518 struct device_attribute *attr, char *buf)
2519{
2520 struct net_device *net = to_net_dev(dev);
2521 struct netxen_adapter *adapter;
2522 int bridged_mode = 0;
2523
2524 adapter = netdev_priv(net);
2525
2526 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2527 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2528
2529 return sprintf(buf, "%d\n", bridged_mode);
2530}
2531
2532static struct device_attribute dev_attr_bridged_mode = {
2533 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2534 .show = netxen_show_bridged_mode,
2535 .store = netxen_store_bridged_mode,
2536};
2537
70f9cf89
DP		 2538static ssize_t
2539netxen_store_diag_mode(struct device *dev,
2540 struct device_attribute *attr, const char *buf, size_t len)
2541{
2542 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2543 unsigned long new;
2544
2545 if (strict_strtoul(buf, 2, &new))
2546 return -EINVAL;
2547
2548 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2549 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2550
2551 return len;
2552}
2553
2554static ssize_t
2555netxen_show_diag_mode(struct device *dev,
2556 struct device_attribute *attr, char *buf)
2557{
2558 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2559
2560 return sprintf(buf, "%d\n",
2561 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2562}
2563
2564static struct device_attribute dev_attr_diag_mode = {
2565 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2566 .show = netxen_show_diag_mode,
2567 .store = netxen_store_diag_mode,
2568};
2569
2570static int
2571netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2572 loff_t offset, size_t size)
2573{
0b9715e6
AKS		 2574 size_t crb_size = 4;
2575
70f9cf89
DP		 2576 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2577 return -EIO;
2578
0b9715e6
AKS		 2579 if (offset < NETXEN_PCI_CRBSPACE) {
2580 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2581 return -EINVAL;
70f9cf89 2582
0b9715e6
AKS		 2583 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2584 NETXEN_PCI_CAMQM_2M_END))
2585 crb_size = 8;
2586 else
2587 return -EINVAL;
2588 }
2589
2590 if ((size != crb_size) || (offset & (crb_size-1)))
2591 return -EINVAL;
70f9cf89
DP		 2592
2593 return 0;
2594}
2595
2596static ssize_t
2c3c8bea
CW		 2597netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2598 struct bin_attribute *attr,
70f9cf89
DP		 2599 char *buf, loff_t offset, size_t size)
2600{
2601 struct device *dev = container_of(kobj, struct device, kobj);
2602 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2603 u32 data;
0b9715e6 2604 u64 qmdata;
70f9cf89
DP		 2605 int ret;
2606
2607 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2608 if (ret != 0)
2609 return ret;
2610
0b9715e6
AKS		 2611 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2612 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2613 NETXEN_PCI_CAMQM_2M_END)) {
2614 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2615 memcpy(buf, &qmdata, size);
2616 } else {
2617 data = NXRD32(adapter, offset);
2618 memcpy(buf, &data, size);
2619 }
2620
70f9cf89
DP		 2621 return size;
2622}
2623
2624static ssize_t
2c3c8bea
CW		 2625netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2626 struct bin_attribute *attr,
70f9cf89
DP		 2627 char *buf, loff_t offset, size_t size)
2628{
2629 struct device *dev = container_of(kobj, struct device, kobj);
2630 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2631 u32 data;
0b9715e6 2632 u64 qmdata;
70f9cf89
DP		 2633 int ret;
2634
2635 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2636 if (ret != 0)
2637 return ret;
2638
0b9715e6
AKS		 2639 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2640 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2641 NETXEN_PCI_CAMQM_2M_END)) {
2642 memcpy(&qmdata, buf, size);
2643 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2644 } else {
2645 memcpy(&data, buf, size);
2646 NXWR32(adapter, offset, data);
2647 }
2648
70f9cf89
DP		 2649 return size;
2650}
2651
2652static int
2653netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2654 loff_t offset, size_t size)
2655{
2656 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2657 return -EIO;
2658
2659 if ((size != 8) || (offset & 0x7))
2660 return -EIO;
2661
2662 return 0;
2663}
2664
2665static ssize_t
2c3c8bea
CW		 2666netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2667 struct bin_attribute *attr,
70f9cf89
DP		 2668 char *buf, loff_t offset, size_t size)
2669{
2670 struct device *dev = container_of(kobj, struct device, kobj);
2671 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2672 u64 data;
2673 int ret;
2674
2675 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2676 if (ret != 0)
2677 return ret;
2678
2679 if (adapter->pci_mem_read(adapter, offset, &data))
2680 return -EIO;
2681
2682 memcpy(buf, &data, size);
2683
2684 return size;
2685}
2686
2c3c8bea 2687static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2688 struct bin_attribute *attr, char *buf,
2689 loff_t offset, size_t size)
2690{
2691 struct device *dev = container_of(kobj, struct device, kobj);
2692 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2693 u64 data;
2694 int ret;
2695
2696 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2697 if (ret != 0)
2698 return ret;
2699
2700 memcpy(&data, buf, size);
2701
2702 if (adapter->pci_mem_write(adapter, offset, data))
2703 return -EIO;
2704
2705 return size;
2706}
2707
2708
2709static struct bin_attribute bin_attr_crb = {
2710 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2711 .size = 0,
2712 .read = netxen_sysfs_read_crb,
2713 .write = netxen_sysfs_write_crb,
2714};
2715
2716static struct bin_attribute bin_attr_mem = {
2717 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2718 .size = 0,
2719 .read = netxen_sysfs_read_mem,
2720 .write = netxen_sysfs_write_mem,
2721};
2722
caa2dd53 2723
fa3ce355
NK		 2724static void
2725netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2726{
2727 struct net_device *netdev = adapter->netdev;
2728 struct device *dev = &netdev->dev;
2729
2730 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2731 /* bridged_mode control */
2732 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2733 dev_warn(&netdev->dev,
2734 "failed to create bridged_mode sysfs entry\n");
2735 }
2736 }
2737}
2738
2739static void
2740netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2741{
2742 struct net_device *netdev = adapter->netdev;
2743 struct device *dev = &netdev->dev;
2744
2745 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2746 device_remove_file(dev, &dev_attr_bridged_mode);
2747}
2748
70f9cf89
DP		 2749static void
2750netxen_create_diag_entries(struct netxen_adapter *adapter)
2751{
2752 struct pci_dev *pdev = adapter->pdev;
2753 struct device *dev;
2754
2755 dev = &pdev->dev;
2756 if (device_create_file(dev, &dev_attr_diag_mode))
2757 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2758 if (device_create_bin_file(dev, &bin_attr_crb))
2759 dev_info(dev, "failed to create crb sysfs entry\n");
2760 if (device_create_bin_file(dev, &bin_attr_mem))
2761 dev_info(dev, "failed to create mem sysfs entry\n");
2762}
2763
2764
2765static void
2766netxen_remove_diag_entries(struct netxen_adapter *adapter)
2767{
2768 struct pci_dev *pdev = adapter->pdev;
2769 struct device *dev = &pdev->dev;
2770
2771 device_remove_file(dev, &dev_attr_diag_mode);
2772 device_remove_bin_file(dev, &bin_attr_crb);
2773 device_remove_bin_file(dev, &bin_attr_mem);
2774}
2775
044824d9
DP		 2776#ifdef CONFIG_INET
2777
6598b169
DP		 2778#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2779
2780static int
2781netxen_destip_supported(struct netxen_adapter *adapter)
2782{
2783 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2784 return 0;
2785
2786 if (adapter->ahw.cut_through)
2787 return 0;
2788
2789 return 1;
2790}
2791
d0725e4d
AKS		 2792static void
2793netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2794{
2795 struct in_device *indev;
2796 struct netxen_adapter *adapter = netdev_priv(dev);
2797
3db76755 2798 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2799 return;
2800
2801 indev = in_dev_get(dev);
2802 if (!indev)
2803 return;
2804
2805 for_ifa(indev) {
2806 switch (event) {
2807 case NETDEV_UP:
2808 netxen_config_ipaddr(adapter,
2809 ifa->ifa_address, NX_IP_UP);
2810 break;
2811 case NETDEV_DOWN:
2812 netxen_config_ipaddr(adapter,
2813 ifa->ifa_address, NX_IP_DOWN);
2814 break;
2815 default:
2816 break;
2817 }
2818 } endfor_ifa(indev);
2819
2820 in_dev_put(indev);
d0725e4d
AKS		 2821}
2822
6598b169
DP		 2823static int netxen_netdev_event(struct notifier_block *this,
2824 unsigned long event, void *ptr)
2825{
2826 struct netxen_adapter *adapter;
2827 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2828
2829recheck:
2830 if (dev == NULL)
2831 goto done;
2832
2833 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2834 dev = vlan_dev_real_dev(dev);
2835 goto recheck;
2836 }
2837
2838 if (!is_netxen_netdev(dev))
2839 goto done;
2840
2841 adapter = netdev_priv(dev);
2842
d0725e4d 2843 if (!adapter)
6598b169
DP		 2844 goto done;
2845
2846 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2847 goto done;
2848
d0725e4d 2849 netxen_config_indev_addr(dev, event);
6598b169
DP		 2850done:
2851 return NOTIFY_DONE;
2852}
2853
2854static int
2855netxen_inetaddr_event(struct notifier_block *this,
2856 unsigned long event, void *ptr)
2857{
2858 struct netxen_adapter *adapter;
2859 struct net_device *dev;
2860
2861 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2862
2863 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2864
2865recheck:
2866 if (dev == NULL || !netif_running(dev))
2867 goto done;
2868
2869 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2870 dev = vlan_dev_real_dev(dev);
2871 goto recheck;
2872 }
2873
2874 if (!is_netxen_netdev(dev))
2875 goto done;
2876
2877 adapter = netdev_priv(dev);
2878
2879 if (!adapter || !netxen_destip_supported(adapter))
2880 goto done;
2881
2882 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2883 goto done;
2884
2885 switch (event) {
2886 case NETDEV_UP:
2887 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2888 break;
2889 case NETDEV_DOWN:
2890 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2891 break;
2892 default:
2893 break;
2894 }
2895
2896done:
2897 return NOTIFY_DONE;
2898}
2899
2900static struct notifier_block netxen_netdev_cb = {
2901 .notifier_call = netxen_netdev_event,
2902};
2903
2904static struct notifier_block netxen_inetaddr_cb = {
2905 .notifier_call = netxen_inetaddr_event,
2906};
9feae56c
RD		 2907#else
2908static void
2909netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2910{ }
044824d9 2911#endif
6598b169 2912
e87ad553
AKS		 2913static struct pci_error_handlers netxen_err_handler = {
2914 .error_detected = netxen_io_error_detected,
2915 .slot_reset = netxen_io_slot_reset,
2916 .resume = netxen_io_resume,
2917};
2918
3d396eb1
AK		 2919static struct pci_driver netxen_driver = {
2920 .name = netxen_nic_driver_name,
2921 .id_table = netxen_pci_tbl,
2922 .probe = netxen_nic_probe,
0b72e659 2923 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2924#ifdef CONFIG_PM
0b72e659 2925 .suspend = netxen_nic_suspend,
22b5794b 2926 .resume = netxen_nic_resume,
01542cd1 2927#endif
e87ad553
AKS		 2928 .shutdown = netxen_nic_shutdown,
2929 .err_handler = &netxen_err_handler
3d396eb1
AK		 2930};
2931
3d396eb1
AK		 2932static int __init netxen_init_module(void)
2933{
ff4fbd43
DP		 2934 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2935
044824d9 2936#ifdef CONFIG_INET
6598b169
DP		 2937 register_netdevice_notifier(&netxen_netdev_cb);
2938 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2939#endif
184231bd 2940 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2941}
2942
2943module_init(netxen_init_module);
2944
2945static void __exit netxen_exit_module(void)
2946{
3d396eb1 2947 pci_unregister_driver(&netxen_driver);
6598b169 2948
044824d9 2949#ifdef CONFIG_INET
6598b169
DP		 2950 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2951 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2952#endif
3d396eb1
AK		 2953}
2954
2955module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)