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netdev: Update status of 8390 based drivers in MAINTAINERS
[deliverable/linux.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
765 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
766
767 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
768 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
769 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
770 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
771 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
772 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
773 }
774
775 adapter->msix_supported = 0;
776 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
777 adapter->msix_supported = !!use_msi_x;
778 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 779 } else {
780 u32 flashed_ver = 0;
781 netxen_rom_fast_read(adapter,
782 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
783 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
784
785 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
786 switch (adapter->ahw.board_type) {
787 case NETXEN_BRDTYPE_P2_SB31_10G:
788 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
789 adapter->msix_supported = !!use_msi_x;
790 adapter->rss_supported = !!use_msi_x;
791 break;
792 default:
793 break;
794 }
2b9e62ee
DP		 795 }
796 }
797
798 adapter->num_txd = MAX_CMD_DESCRIPTORS;
799
800 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
801 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
802 adapter->max_rds_rings = 3;
803 } else {
804 adapter->num_lro_rxd = 0;
805 adapter->max_rds_rings = 2;
806 }
807}
808
ba599d4f 809static int
6a581e93 810netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 811{
812 int val, err, first_boot;
813 struct pci_dev *pdev = adapter->pdev;
814
2b9e62ee
DP		 815 /* required for NX2031 dummy dma */
816 err = nx_set_dma_mask(adapter);
817 if (err)
818 return err;
819
6a581e93 820 if (!netxen_can_start_firmware(adapter))
96f2ebd2 821 goto wait_init;
0b72e659 822
f98a9f69 823 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 824
825 err = netxen_check_hw_init(adapter, first_boot);
826 if (err) {
827 dev_err(&pdev->dev, "error in init HW init sequence\n");
828 return err;
829 }
830
6a581e93 831 netxen_request_firmware(adapter);
f7185c71 832
67c38fc6 833 err = netxen_need_fw_reset(adapter);
1dbc84a7 834 if (err < 0)
db4cfd8a 835 goto err_out;
1dbc84a7 836 if (err == 0)
8f9b3f69 837 goto wait_init;
67c38fc6 838
ba599d4f 839 if (first_boot != 0x55555555) {
f98a9f69 840 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 841 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 842 msleep(1);
843 }
567c6c4e 844
f98a9f69 845 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 846 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
847 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
848
567c6c4e
DP		 849 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
850 netxen_set_port_mode(adapter);
851
db4cfd8a
DP		 852 err = netxen_load_firmware(adapter);
853 if (err)
854 goto err_out;
ba599d4f 855
6a581e93
DP		 856 netxen_release_firmware(adapter);
857
ba599d4f
DP		 858 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
859
860 /* Initialize multicast addr pool owners */
861 val = 0x7654;
1e2d0059 862 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 863 val |= 0x0f000000;
f98a9f69 864 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 865
866 }
867
83ac51fa 868 err = netxen_init_dummy_dma(adapter);
ba599d4f 869 if (err)
db4cfd8a 870 goto err_out;
ba599d4f
DP		 871
872 /*
873 * Tell the hardware our version number.
874 */
875 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
876 | ((_NETXEN_NIC_LINUX_MINOR << 8))
877 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 878 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 879
96f2ebd2 880wait_init:
ba599d4f
DP		 881 /* Handshake with the card before we register the devices. */
882 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
883 if (err) {
83ac51fa 884 netxen_free_dummy_dma(adapter);
db4cfd8a 885 goto err_out;
ba599d4f
DP		 886 }
887
8f9b3f69
AKS		 888 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
889
68b3cae0
DP		 890 nx_update_dma_mask(adapter);
891
6a581e93 892 netxen_check_options(adapter);
68b3cae0 893
74c520da
AKS		 894 adapter->need_fw_reset = 0;
895
ec5c50cb 896 /* fall through and release firmware */
db4cfd8a
DP		 897
898err_out:
899 netxen_release_firmware(adapter);
900 return err;
ba599d4f
DP		 901}
902
9f5bc7f1
DP		 903static int
904netxen_nic_request_irq(struct netxen_adapter *adapter)
905{
906 irq_handler_t handler;
d8b100c5
DP		 907 struct nx_host_sds_ring *sds_ring;
908 int err, ring;
909
9f5bc7f1
DP		 910 unsigned long flags = IRQF_SAMPLE_RANDOM;
911 struct net_device *netdev = adapter->netdev;
d8b100c5 912 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 913
9f5bc7f1
DP		 914 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
915 handler = netxen_msix_intr;
916 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
917 handler = netxen_msi_intr;
918 else {
919 flags |= IRQF_SHARED;
920 handler = netxen_intr;
921 }
922 adapter->irq = netdev->irq;
923
d8b100c5
DP		 924 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
925 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 926 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 927 err = request_irq(sds_ring->irq, handler,
928 flags, sds_ring->name, sds_ring);
929 if (err)
930 return err;
931 }
932
933 return 0;
934}
935
936static void
937netxen_nic_free_irq(struct netxen_adapter *adapter)
938{
939 int ring;
940 struct nx_host_sds_ring *sds_ring;
941
942 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
943
944 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
945 sds_ring = &recv_ctx->sds_rings[ring];
946 free_irq(sds_ring->irq, sds_ring);
947 }
9f5bc7f1
DP		 948}
949
ca2ef330
DP		 950static void
951netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
952{
953 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
954 adapter->coal.normal.data.rx_time_us =
955 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
956 adapter->coal.normal.data.rx_packets =
957 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
958 adapter->coal.normal.data.tx_time_us =
959 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
960 adapter->coal.normal.data.tx_packets =
961 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
962}
963
6f771419 964/* with rtnl_lock */
9f5bc7f1 965static int
6f771419 966__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 967{
968 int err;
969
db4cfd8a
DP		 970 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
971 return -EIO;
972
9f5bc7f1
DP		 973 err = adapter->init_port(adapter, adapter->physical_port);
974 if (err) {
975 printk(KERN_ERR "%s: Failed to initialize port %d\n",
976 netxen_nic_driver_name, adapter->portnum);
977 return err;
978 }
3d0a3cc9 979 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 980 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 981
3d0a3cc9
DP		 982 adapter->set_multi(netdev);
983 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 984
985 adapter->ahw.linkup = 0;
9f5bc7f1 986
d8b100c5
DP		 987 if (adapter->max_sds_rings > 1)
988 netxen_config_rss(adapter, 1);
9f5bc7f1 989
ca2ef330
DP		 990 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
991 netxen_config_intr_coalesce(adapter);
992
1bb482f8
NK		 993 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
994 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
995
b2af9cb0
DP		 996 netxen_napi_enable(adapter);
997
5103c9f7 998 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 999 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1000 else
1001 netxen_nic_set_link_parameters(adapter);
1002
6a581e93 1003 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1004 return 0;
1005}
1006
6f771419
AKS		 1007/* Usage: During resume and firmware recovery module.*/
1008
1009static inline int
1010netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1011{
1012 int err = 0;
1013
1014 rtnl_lock();
1015 if (netif_running(netdev))
1016 err = __netxen_nic_up(adapter, netdev);
1017 rtnl_unlock();
1018
1019 return err;
1020}
1021
1022/* with rtnl_lock */
9f5bc7f1 1023static void
6f771419 1024__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1025{
db4cfd8a
DP		 1026 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1027 return;
1028
f2251f66
AKS		 1029 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1030 return;
6a581e93 1031
f2251f66 1032 smp_mb();
b2af9cb0 1033 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1034 netif_carrier_off(netdev);
b2af9cb0 1035 netif_tx_disable(netdev);
9f5bc7f1
DP		 1036
1037 if (adapter->stop_port)
1038 adapter->stop_port(adapter);
1039
5cf4d323
DP		 1040 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1041 netxen_p3_free_mac_list(adapter);
1042
22b5794b
AKS		 1043 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1044
be339aee
DP		 1045 netxen_napi_disable(adapter);
1046
9f5bc7f1 1047 netxen_release_tx_buffers(adapter);
b2af9cb0 1048 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1049}
1050
6f771419
AKS		 1051/* Usage: During suspend and firmware recovery module */
1052
1053static inline void
1054netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1055{
1056 rtnl_lock();
1057 if (netif_running(netdev))
1058 __netxen_nic_down(adapter, netdev);
1059 rtnl_unlock();
1060
1061}
9f5bc7f1
DP		 1062
1063static int
1064netxen_nic_attach(struct netxen_adapter *adapter)
1065{
1066 struct net_device *netdev = adapter->netdev;
1067 struct pci_dev *pdev = adapter->pdev;
becf46a0 1068 int err, ring;
d8b100c5 1069 struct nx_host_rds_ring *rds_ring;
d877f1e3 1070 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1071
7042cd8f
AKS		 1072 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1073 return 0;
1074
9f5bc7f1 1075 err = netxen_init_firmware(adapter);
232e7d68
DP		 1076 if (err)
1077 return err;
1078
1079 err = netxen_napi_add(adapter, netdev);
1080 if (err)
1081 return err;
9f5bc7f1 1082
9f5bc7f1
DP		 1083 err = netxen_alloc_sw_resources(adapter);
1084 if (err) {
1085 printk(KERN_ERR "%s: Error in setting sw resources\n",
1086 netdev->name);
1087 return err;
1088 }
1089
9f5bc7f1
DP		 1090 err = netxen_alloc_hw_resources(adapter);
1091 if (err) {
1092 printk(KERN_ERR "%s: Error in setting hw resources\n",
1093 netdev->name);
1094 goto err_out_free_sw;
1095 }
1096
4f96b988 1097 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1098 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1099 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1100 crb_cmd_producer[adapter->portnum]);
1101 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1102 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1103
cb2107be
DP		 1104 tx_ring->producer = 0;
1105 tx_ring->sw_consumer = 0;
1106
1107 netxen_nic_update_cmd_producer(adapter, tx_ring);
1108 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1109 }
1110
d8b100c5
DP		 1111 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1112 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1113 netxen_post_rx_buffers(adapter, ring, rds_ring);
1114 }
9f5bc7f1
DP		 1115
1116 err = netxen_nic_request_irq(adapter);
1117 if (err) {
1118 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1119 netdev->name);
1120 goto err_out_free_rxbuf;
1121 }
1122
ca2ef330
DP		 1123 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1124 netxen_nic_init_coalesce_defaults(adapter);
1125
fa3ce355
NK		 1126 netxen_create_sysfs_entries(adapter);
1127
9f5bc7f1
DP		 1128 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1129 return 0;
1130
1131err_out_free_rxbuf:
1132 netxen_release_rx_buffers(adapter);
1133 netxen_free_hw_resources(adapter);
1134err_out_free_sw:
1135 netxen_free_sw_resources(adapter);
1136 return err;
1137}
1138
1139static void
1140netxen_nic_detach(struct netxen_adapter *adapter)
1141{
7042cd8f
AKS		 1142 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1143 return;
1144
fa3ce355
NK		 1145 netxen_remove_sysfs_entries(adapter);
1146
9f5bc7f1 1147 netxen_free_hw_resources(adapter);
cf981ffb 1148 netxen_release_rx_buffers(adapter);
be339aee 1149 netxen_nic_free_irq(adapter);
232e7d68 1150 netxen_napi_del(adapter);
9f5bc7f1
DP		 1151 netxen_free_sw_resources(adapter);
1152
1153 adapter->is_up = 0;
1154}
1155
7042cd8f
AKS		 1156int
1157netxen_nic_reset_context(struct netxen_adapter *adapter)
1158{
1159 int err = 0;
1160 struct net_device *netdev = adapter->netdev;
1161
6a581e93
DP		 1162 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1163 return -EBUSY;
1164
7042cd8f
AKS		 1165 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1166
6a581e93
DP		 1167 netif_device_detach(netdev);
1168
7042cd8f 1169 if (netif_running(netdev))
6f771419 1170 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1171
1172 netxen_nic_detach(adapter);
1173
6a581e93
DP		 1174 if (netif_running(netdev)) {
1175 err = netxen_nic_attach(adapter);
1176 if (!err)
6f771419 1177 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1178
6a581e93
DP		 1179 if (err)
1180 goto done;
1181 }
1182
1183 netif_device_attach(netdev);
7042cd8f 1184 }
6a581e93 1185
7042cd8f 1186done:
6a581e93 1187 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1188 return err;
1189}
1190
f17443f4
DP		 1191static int
1192netxen_setup_netdev(struct netxen_adapter *adapter,
1193 struct net_device *netdev)
1194{
1195 int err = 0;
1196 struct pci_dev *pdev = adapter->pdev;
1197
1198 adapter->rx_csum = 1;
1199 adapter->mc_enabled = 0;
1200 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1201 adapter->max_mc_count = 38;
1202 else
1203 adapter->max_mc_count = 16;
1204
1205 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1206 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1207
1208 netxen_nic_change_mtu(netdev, netdev->mtu);
1209
1210 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1211
1212 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1213 netdev->features |= (NETIF_F_GRO);
1214 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1215
1216 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1217 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1218 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1219 }
1220
1221 if (adapter->pci_using_dac) {
1222 netdev->features |= NETIF_F_HIGHDMA;
1223 netdev->vlan_features |= NETIF_F_HIGHDMA;
1224 }
1225
028afe71
DP		 1226 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1227 netdev->features |= (NETIF_F_HW_VLAN_TX);
1228
1bb482f8
NK		 1229 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1230 netdev->features |= NETIF_F_LRO;
1231
f17443f4
DP		 1232 netdev->irq = adapter->msix_entries[0].vector;
1233
74c520da 1234 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1235
1236 if (netxen_read_mac_addr(adapter))
1237 dev_warn(&pdev->dev, "failed to read mac addr\n");
1238
1239 netif_carrier_off(netdev);
f17443f4
DP		 1240
1241 err = register_netdev(netdev);
1242 if (err) {
1243 dev_err(&pdev->dev, "failed to register net device\n");
1244 return err;
1245 }
1246
1247 return 0;
1248}
1249
dce87b96 1250#ifdef CONFIG_PCIEAER
1251static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1252{
1253 struct pci_dev *pdev = adapter->pdev;
1254 struct pci_dev *root = pdev->bus->self;
1255 u32 aer_pos;
1256
1257 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1258 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1259 return;
1260
1261 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1262 return;
1263
1264 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1265 if (!aer_pos)
1266 return;
1267
1268 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1269}
1270#endif
1271
3d396eb1
AK		 1272static int __devinit
1273netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1274{
1275 struct net_device *netdev = NULL;
1276 struct netxen_adapter *adapter = NULL;
2956640d 1277 int i = 0, err;
3176ff3e 1278 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1279 uint8_t revision_id;
5a6f95e6 1280 u32 val;
3d396eb1 1281
688328c7
EB		 1282 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1283 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1284 "will not be enabled.\n",
c25c0b9b 1285 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1286 return -ENODEV;
1287 }
1288
3d396eb1
AK		 1289 if ((err = pci_enable_device(pdev)))
1290 return err;
2956640d 1291
3d396eb1
AK		 1292 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1293 err = -ENODEV;
1294 goto err_out_disable_pdev;
1295 }
1296
1297 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1298 goto err_out_disable_pdev;
1299
e87ad553
AKS		 1300 if (NX_IS_REVISION_P3(pdev->revision))
1301 pci_enable_pcie_error_reporting(pdev);
1302
3d396eb1 1303 pci_set_master(pdev);
3176ff3e
MT		 1304
1305 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1306 if(!netdev) {
f17443f4
DP		 1307 dev_err(&pdev->dev, "failed to allocate net_device\n");
1308 err = -ENOMEM;
3176ff3e
MT		 1309 goto err_out_free_res;
1310 }
1311
3176ff3e
MT		 1312 SET_NETDEV_DEV(netdev, &pdev->dev);
1313
4cf1653a 1314 adapter = netdev_priv(netdev);
2956640d
DP		 1315 adapter->netdev = netdev;
1316 adapter->pdev = pdev;
13ba9c77 1317 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1318
1319 revision_id = pdev->revision;
1320 adapter->ahw.revision_id = revision_id;
1321
f03b0ebd
DP		 1322 rwlock_init(&adapter->ahw.crb_lock);
1323 spin_lock_init(&adapter->ahw.mem_lock);
1324
d8b100c5 1325 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1326 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1327
97daee83
DP		 1328 err = netxen_setup_pci_map(adapter);
1329 if (err)
6c80b18d 1330 goto err_out_free_netdev;
3d396eb1 1331
2d1a3bbd 1332 /* This will be reset for mezz cards */
3176ff3e 1333 adapter->portnum = pci_func_id;
3176ff3e 1334
f17443f4
DP		 1335 err = netxen_nic_get_board_info(adapter);
1336 if (err) {
1337 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1338 goto err_out_iounmap;
1339 }
6c80b18d 1340
dce87b96 1341#ifdef CONFIG_PCIEAER
1342 netxen_mask_aer_correctable(adapter);
1343#endif
1344
13ba9c77 1345 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1346 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1347 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1348 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1349 if (pci_func_id >= 2)
13ba9c77 1350 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1351 break;
1352 default:
1353 break;
1354 }
13ba9c77 1355
5a6f95e6
RB		 1356 if (adapter->portnum == 0) {
1357 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1358 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1359 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1360 adapter->need_fw_reset = 1;
1361 }
1362 }
1363
6a581e93 1364 err = netxen_start_firmware(adapter);
0b72e659 1365 if (err)
8f9b3f69 1366 goto err_out_decr_ref;
f17443f4 1367
3d396eb1 1368 /*
6c80b18d 1369 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1370 */
dcd56fdb 1371 adapter->physical_port = adapter->portnum;
4f96b988 1372 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1373 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1374 if (i != 0x55555555)
1375 adapter->physical_port = i;
1376 }
6c80b18d 1377
6a581e93 1378 netxen_nic_clear_stats(adapter);
2956640d 1379
97daee83 1380 netxen_setup_intr(adapter);
2956640d 1381
f17443f4 1382 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1383 if (err)
2956640d 1384 goto err_out_disable_msi;
6c80b18d
MT		 1385
1386 pci_set_drvdata(pdev, adapter);
3d396eb1 1387
6a581e93
DP		 1388 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1389
1e2d0059 1390 switch (adapter->ahw.port_type) {
2956640d
DP		 1391 case NETXEN_NIC_GBE:
1392 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1393 adapter->netdev->name);
1394 break;
1395 case NETXEN_NIC_XGBE:
1396 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1397 adapter->netdev->name);
1398 break;
3d396eb1 1399 }
3d396eb1 1400
70f9cf89
DP		 1401 netxen_create_diag_entries(adapter);
1402
2956640d
DP		 1403 return 0;
1404
1405err_out_disable_msi:
97daee83 1406 netxen_teardown_intr(adapter);
6c80b18d 1407
83ac51fa 1408 netxen_free_dummy_dma(adapter);
3d396eb1 1409
8f9b3f69 1410err_out_decr_ref:
6a581e93
DP		 1411 nx_decr_dev_ref_cnt(adapter);
1412
2956640d 1413err_out_iounmap:
97daee83 1414 netxen_cleanup_pci_map(adapter);
cb8011ad 1415
6c80b18d
MT		 1416err_out_free_netdev:
1417 free_netdev(netdev);
1418
1419err_out_free_res:
3d396eb1 1420 pci_release_regions(pdev);
6c80b18d
MT		 1421
1422err_out_disable_pdev:
2956640d 1423 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1424 pci_disable_device(pdev);
1425 return err;
1426}
1427
1428static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1429{
1430 struct netxen_adapter *adapter;
3176ff3e 1431 struct net_device *netdev;
3d396eb1 1432
6c80b18d 1433 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1434 if (adapter == NULL)
1435 return;
1436
6c80b18d
MT		 1437 netdev = adapter->netdev;
1438
6a581e93
DP		 1439 netxen_cancel_fw_work(adapter);
1440
96acb6eb
DP		 1441 unregister_netdev(netdev);
1442
e424fa9d
AKS		 1443 cancel_work_sync(&adapter->tx_timeout_task);
1444
7042cd8f 1445 netxen_nic_detach(adapter);
3d396eb1 1446
6a581e93
DP		 1447 nx_decr_dev_ref_cnt(adapter);
1448
439b454e 1449 if (adapter->portnum == 0)
83ac51fa 1450 netxen_free_dummy_dma(adapter);
96acb6eb 1451
6a581e93
DP		 1452 clear_bit(__NX_RESETTING, &adapter->state);
1453
97daee83 1454 netxen_teardown_intr(adapter);
3052246c 1455
70f9cf89
DP		 1456 netxen_remove_diag_entries(adapter);
1457
97daee83 1458 netxen_cleanup_pci_map(adapter);
595e3fb8 1459
f7185c71
DP		 1460 netxen_release_firmware(adapter);
1461
e87ad553
AKS		 1462 if (NX_IS_REVISION_P3(pdev->revision))
1463 pci_disable_pcie_error_reporting(pdev);
1464
595e3fb8 1465 pci_release_regions(pdev);
3052246c 1466 pci_disable_device(pdev);
595e3fb8
MT		 1467 pci_set_drvdata(pdev, NULL);
1468
6c80b18d 1469 free_netdev(netdev);
3d396eb1 1470}
e87ad553
AKS		 1471
1472static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1473{
0b72e659
DP		 1474 struct net_device *netdev = adapter->netdev;
1475
1476 netif_device_detach(netdev);
1477
6a581e93
DP		 1478 netxen_cancel_fw_work(adapter);
1479
0b72e659
DP		 1480 if (netif_running(netdev))
1481 netxen_nic_down(adapter, netdev);
1482
e424fa9d
AKS		 1483 cancel_work_sync(&adapter->tx_timeout_task);
1484
7042cd8f 1485 netxen_nic_detach(adapter);
0b72e659 1486
22b5794b
AKS		 1487 if (adapter->portnum == 0)
1488 netxen_free_dummy_dma(adapter);
1489
6a581e93
DP		 1490 nx_decr_dev_ref_cnt(adapter);
1491
1492 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1493}
0b72e659 1494
e87ad553 1495static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1496{
1497 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1498 struct net_device *netdev = adapter->netdev;
1499 int err;
1500
0b72e659
DP		 1501 err = pci_enable_device(pdev);
1502 if (err)
1503 return err;
1504
bc86fcba
AKS		 1505 pci_set_power_state(pdev, PCI_D0);
1506 pci_set_master(pdev);
1507 pci_restore_state(pdev);
1508
907fa120 1509 adapter->ahw.crb_win = -1;
47abe356 1510 adapter->ahw.ocm_win = -1;
0b72e659 1511
6a581e93 1512 err = netxen_start_firmware(adapter);
0b72e659
DP		 1513 if (err) {
1514 dev_err(&pdev->dev, "failed to start firmware\n");
1515 return err;
1516 }
1517
1518 if (netif_running(netdev)) {
1519 err = netxen_nic_attach(adapter);
1520 if (err)
6a581e93 1521 goto err_out;
0b72e659
DP		 1522
1523 err = netxen_nic_up(adapter, netdev);
1524 if (err)
6a581e93 1525 goto err_out_detach;
0b72e659 1526
d0725e4d 1527 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1528 }
1529
bc86fcba 1530 netif_device_attach(netdev);
6a581e93 1531 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1532 return 0;
6a581e93
DP		 1533
1534err_out_detach:
1535 netxen_nic_detach(adapter);
1536err_out:
1537 nx_decr_dev_ref_cnt(adapter);
1538 return err;
0b72e659 1539}
e87ad553
AKS		 1540
1541static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1542 pci_channel_state_t state)
1543{
1544 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1545
1546 if (state == pci_channel_io_perm_failure)
1547 return PCI_ERS_RESULT_DISCONNECT;
1548
1549 if (nx_dev_request_aer(adapter))
1550 return PCI_ERS_RESULT_RECOVERED;
1551
1552 netxen_nic_detach_func(adapter);
1553
1554 pci_disable_device(pdev);
1555
1556 return PCI_ERS_RESULT_NEED_RESET;
1557}
1558
1559static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1560{
1561 int err = 0;
1562
1563 err = netxen_nic_attach_func(pdev);
1564
1565 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1566}
1567
1568static void netxen_io_resume(struct pci_dev *pdev)
1569{
1570 pci_cleanup_aer_uncorrect_error_status(pdev);
1571}
1572
1573static void netxen_nic_shutdown(struct pci_dev *pdev)
1574{
1575 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1576
1577 netxen_nic_detach_func(adapter);
1578
1579 if (pci_save_state(pdev))
1580 return;
1581
1582 if (netxen_nic_wol_supported(adapter)) {
1583 pci_enable_wake(pdev, PCI_D3cold, 1);
1584 pci_enable_wake(pdev, PCI_D3hot, 1);
1585 }
1586
1587 pci_disable_device(pdev);
1588}
1589
1590#ifdef CONFIG_PM
1591static int
1592netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1593{
1594 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1595 int retval;
1596
1597 netxen_nic_detach_func(adapter);
1598
1599 retval = pci_save_state(pdev);
1600 if (retval)
1601 return retval;
1602
1603 if (netxen_nic_wol_supported(adapter)) {
1604 pci_enable_wake(pdev, PCI_D3cold, 1);
1605 pci_enable_wake(pdev, PCI_D3hot, 1);
1606 }
1607
1608 pci_disable_device(pdev);
1609 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1610
1611 return 0;
1612}
1613
1614static int
1615netxen_nic_resume(struct pci_dev *pdev)
1616{
1617 return netxen_nic_attach_func(pdev);
1618}
01542cd1 1619#endif
0b72e659 1620
3d396eb1
AK		 1621static int netxen_nic_open(struct net_device *netdev)
1622{
4cf1653a 1623 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1624 int err = 0;
3d396eb1 1625
dcd56fdb
DP		 1626 if (adapter->driver_mismatch)
1627 return -EIO;
1628
7042cd8f
AKS		 1629 err = netxen_nic_attach(adapter);
1630 if (err)
1631 return err;
2956640d 1632
6f771419 1633 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1634 if (err)
1635 goto err_out;
05aaa02d 1636
dcd56fdb 1637 netif_start_queue(netdev);
3d396eb1
AK		 1638
1639 return 0;
2956640d 1640
9f5bc7f1
DP		 1641err_out:
1642 netxen_nic_detach(adapter);
2956640d 1643 return err;
3d396eb1
AK		 1644}
1645
1646/*
1647 * netxen_nic_close - Disables a network interface entry point
1648 */
1649static int netxen_nic_close(struct net_device *netdev)
1650{
3176ff3e 1651 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1652
6f771419 1653 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1654 return 0;
1655}
1656
1bcfd790
DP		 1657static void
1658netxen_tso_check(struct net_device *netdev,
1659 struct nx_host_tx_ring *tx_ring,
1660 struct cmd_desc_type0 *first_desc,
1661 struct sk_buff *skb)
cd1f8160 1662{
391587c3 1663 u8 opcode = TX_ETHER_PKT;
cdff1036 1664 __be16 protocol = skb->protocol;
028afe71 1665 u16 flags = 0, vid = 0;
1bcfd790 1666 u32 producer;
028afe71 1667 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1668 struct cmd_desc_type0 *hwdesc;
028afe71 1669 struct vlan_ethhdr *vh;
cdff1036 1670
09640e63 1671 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1672
1673 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1674 protocol = vh->h_vlan_encapsulated_proto;
1675 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1676
1677 } else if (vlan_tx_tag_present(skb)) {
1678
1679 flags = FLAGS_VLAN_OOB;
1680 vid = vlan_tx_tag_get(skb);
1681 netxen_set_tx_vlan_tci(first_desc, vid);
1682 vlan_oob = 1;
cdff1036 1683 }
cd1f8160 1684
391587c3
DP		 1685 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1686 skb_shinfo(skb)->gso_size > 0) {
1687
1bcfd790
DP		 1688 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1689
1690 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1691 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1692 if (vlan_oob) {
1693 first_desc->total_hdr_length += VLAN_HLEN;
1694 first_desc->tcp_hdr_offset = VLAN_HLEN;
1695 first_desc->ip_hdr_offset = VLAN_HLEN;
1696 /* Only in case of TSO on vlan device */
1697 flags |= FLAGS_VLAN_TAGGED;
1698 }
391587c3 1699
09640e63 1700 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1701 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1702 tso = 1;
cd1f8160
DP		 1703
1704 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1705 u8 l4proto;
1706
09640e63 1707 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1708 l4proto = ip_hdr(skb)->protocol;
1709
1710 if (l4proto == IPPROTO_TCP)
1711 opcode = TX_TCP_PKT;
1712 else if(l4proto == IPPROTO_UDP)
1713 opcode = TX_UDP_PKT;
09640e63 1714 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1715 l4proto = ipv6_hdr(skb)->nexthdr;
1716
1717 if (l4proto == IPPROTO_TCP)
1718 opcode = TX_TCPV6_PKT;
1719 else if(l4proto == IPPROTO_UDP)
1720 opcode = TX_UDPV6_PKT;
1721 }
cd1f8160 1722 }
028afe71
DP		 1723
1724 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1725 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1726 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1727
1728 if (!tso)
1729 return;
1730
1731 /* For LSO, we need to copy the MAC/IP/TCP headers into
1732 * the descriptor ring
1733 */
1734 producer = tx_ring->producer;
1735 copied = 0;
1736 offset = 2;
1737
028afe71
DP		 1738 if (vlan_oob) {
1739 /* Create a TSO vlan header template for firmware */
1740
1741 hwdesc = &tx_ring->desc_head[producer];
1742 tx_ring->cmd_buf_arr[producer].skb = NULL;
1743
1744 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1745 hdr_len + VLAN_HLEN);
1746
1747 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1748 skb_copy_from_linear_data(skb, vh, 12);
1749 vh->h_vlan_proto = htons(ETH_P_8021Q);
1750 vh->h_vlan_TCI = htons(vid);
1751 skb_copy_from_linear_data_offset(skb, 12,
1752 (char *)vh + 16, copy_len - 16);
1753
545eb370 1754 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1755 offset = 0;
1756
1757 producer = get_next_index(producer, tx_ring->num_desc);
1758 }
1759
1bcfd790
DP		 1760 while (copied < hdr_len) {
1761
1762 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1763 (hdr_len - copied));
1764
1765 hwdesc = &tx_ring->desc_head[producer];
1766 tx_ring->cmd_buf_arr[producer].skb = NULL;
1767
1768 skb_copy_from_linear_data_offset(skb, copied,
1769 (char *)hwdesc + offset, copy_len);
1770
1771 copied += copy_len;
1772 offset = 0;
1773
1774 producer = get_next_index(producer, tx_ring->num_desc);
1775 }
1776
1777 tx_ring->producer = producer;
1778 barrier();
cd1f8160
DP		 1779}
1780
ce644ed4
DP		 1781static int
1782netxen_map_tx_skb(struct pci_dev *pdev,
1783 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1784{
ce644ed4
DP		 1785 struct netxen_skb_frag *nf;
1786 struct skb_frag_struct *frag;
1787 int i, nr_frags;
1788 dma_addr_t map;
1789
1790 nr_frags = skb_shinfo(skb)->nr_frags;
1791 nf = &pbuf->frag_array[0];
1792
1793 map = pci_map_single(pdev, skb->data,
1794 skb_headlen(skb), PCI_DMA_TODEVICE);
1795 if (pci_dma_mapping_error(pdev, map))
1796 goto out_err;
6f703406 1797
ce644ed4
DP		 1798 nf->dma = map;
1799 nf->length = skb_headlen(skb);
1800
1801 for (i = 0; i < nr_frags; i++) {
1802 frag = &skb_shinfo(skb)->frags[i];
1803 nf = &pbuf->frag_array[i+1];
1804
1805 map = pci_map_page(pdev, frag->page, frag->page_offset,
1806 frag->size, PCI_DMA_TODEVICE);
1807 if (pci_dma_mapping_error(pdev, map))
1808 goto unwind;
1809
1810 nf->dma = map;
1811 nf->length = frag->size;
1812 }
1813
1814 return 0;
6f703406 1815
ce644ed4 1816unwind:
cf503e8f
DP		 1817 while (--i >= 0) {
1818 nf = &pbuf->frag_array[i+1];
ce644ed4 1819 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1820 }
ce644ed4
DP		 1821
1822 nf = &pbuf->frag_array[0];
1823 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1824
1825out_err:
1826 return -ENOMEM;
6f703406
DP		 1827}
1828
d32cc3d2
DP		 1829static inline void
1830netxen_clear_cmddesc(u64 *desc)
1831{
1bcfd790
DP		 1832 desc[0] = 0ULL;
1833 desc[2] = 0ULL;
d32cc3d2
DP		 1834}
1835
61357325 1836static netdev_tx_t
d32cc3d2 1837netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1838{
3176ff3e 1839 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1840 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1841 struct netxen_cmd_buffer *pbuf;
3d396eb1 1842 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1843 struct cmd_desc_type0 *hwdesc, *first_desc;
1844 struct pci_dev *pdev;
391587c3 1845 int i, k;
3d396eb1 1846
cb2107be 1847 u32 producer;
ce644ed4 1848 int frag_count, no_of_desc;
d877f1e3 1849 u32 num_txd = tx_ring->num_desc;
3d396eb1 1850
3d396eb1
AK		 1851 frag_count = skb_shinfo(skb)->nr_frags + 1;
1852
d877f1e3 1853 /* 4 fragments per cmd des */
3d396eb1 1854 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1855
7a9905e6 1856 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 1857 netif_stop_queue(netdev);
7a9905e6
RB		 1858 smp_mb();
1859 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1860 netif_start_queue(netdev);
1861 else
1862 return NETDEV_TX_BUSY;
53a01e00 1863 }
3d396eb1 1864
cb2107be 1865 producer = tx_ring->producer;
ce644ed4 1866 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1867
1bcfd790 1868 pdev = adapter->pdev;
391587c3 1869
ce644ed4 1870 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1871 goto drop_packet;
391587c3 1872
3d396eb1 1873 pbuf->skb = skb;
3d396eb1 1874 pbuf->frag_count = frag_count;
6f703406 1875
1bcfd790
DP		 1876 first_desc = hwdesc = &tx_ring->desc_head[producer];
1877 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1878
ce644ed4
DP		 1879 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1880 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1881
ce644ed4 1882 for (i = 0; i < frag_count; i++) {
3d396eb1 1883
ce644ed4
DP		 1884 k = i % 4;
1885
1886 if ((k == 0) && (i > 0)) {
1887 /* move to next desc.*/
ba53e6b4 1888 producer = get_next_index(producer, num_txd);
d877f1e3 1889 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1890 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1891 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1892 }
3d396eb1 1893
ce644ed4 1894 buffrag = &pbuf->frag_array[i];
3d396eb1 1895
ce644ed4 1896 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1897 switch (k) {
1898 case 0:
ce644ed4 1899 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1900 break;
1901 case 1:
ce644ed4 1902 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1903 break;
1904 case 2:
ce644ed4 1905 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1906 break;
1907 case 3:
ce644ed4 1908 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1909 break;
1910 }
3d396eb1 1911 }
ce644ed4 1912
1bcfd790 1913 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1914
1bcfd790 1915 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1916
cb2107be 1917 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1918
1bcfd790 1919 adapter->stats.txbytes += skb->len;
ba53e6b4 1920 adapter->stats.xmitcalled++;
3d396eb1 1921
3d396eb1 1922 return NETDEV_TX_OK;
6f703406
DP		 1923
1924drop_packet:
1925 adapter->stats.txdropped++;
1926 dev_kfree_skb_any(skb);
1927 return NETDEV_TX_OK;
3d396eb1
AK		 1928}
1929
a97342f9
DP		 1930static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1931{
1932 struct net_device *netdev = adapter->netdev;
1933 uint32_t temp, temp_state, temp_val;
1934 int rv = 0;
1935
f98a9f69 1936 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1937
1938 temp_state = nx_get_temp_state(temp);
1939 temp_val = nx_get_temp_val(temp);
1940
1941 if (temp_state == NX_TEMP_PANIC) {
1942 printk(KERN_ALERT
1943 "%s: Device temperature %d degrees C exceeds"
1944 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1945 netdev->name, temp_val);
a97342f9
DP		 1946 rv = 1;
1947 } else if (temp_state == NX_TEMP_WARN) {
1948 if (adapter->temp == NX_TEMP_NORMAL) {
1949 printk(KERN_ALERT
1950 "%s: Device temperature %d degrees C "
1951 "exceeds operating range."
1952 " Immediate action needed.\n",
e4135c2d 1953 netdev->name, temp_val);
a97342f9
DP		 1954 }
1955 } else {
1956 if (adapter->temp == NX_TEMP_WARN) {
1957 printk(KERN_INFO
1958 "%s: Device temperature is now %d degrees C"
e4135c2d 1959 " in normal range.\n", netdev->name,
a97342f9
DP		 1960 temp_val);
1961 }
1962 }
1963 adapter->temp = temp_state;
1964 return rv;
1965}
1966
3bf26ce3 1967void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1968{
1969 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1970
1971 if (adapter->ahw.linkup && !linkup) {
1972 printk(KERN_INFO "%s: %s NIC Link is down\n",
1973 netxen_nic_driver_name, netdev->name);
1974 adapter->ahw.linkup = 0;
1975 if (netif_running(netdev)) {
1976 netif_carrier_off(netdev);
1977 netif_stop_queue(netdev);
1978 }
e424fa9d 1979 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1980 } else if (!adapter->ahw.linkup && linkup) {
1981 printk(KERN_INFO "%s: %s NIC Link is up\n",
1982 netxen_nic_driver_name, netdev->name);
1983 adapter->ahw.linkup = 1;
1984 if (netif_running(netdev)) {
1985 netif_carrier_on(netdev);
1986 netif_wake_queue(netdev);
1987 }
e424fa9d 1988 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1989 }
1990}
1991
3bf26ce3
DP		 1992static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1993{
1994 u32 val, port, linkup;
1995
1996 port = adapter->physical_port;
1997
1998 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1999 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2000 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2001 linkup = (val == XG_LINK_UP_P3);
2002 } else {
f98a9f69 2003 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2004 val = (val >> port*8) & 0xff;
2005 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2006 }
2007
2008 netxen_advert_link_change(adapter, linkup);
2009}
2010
3d396eb1
AK		 2011static void netxen_tx_timeout(struct net_device *netdev)
2012{
e424fa9d 2013 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2014
6a581e93
DP		 2015 if (test_bit(__NX_RESETTING, &adapter->state))
2016 return;
2017
f17443f4 2018 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2019 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2020}
2021
74c520da 2022static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2023{
4790654c 2024 struct netxen_adapter *adapter =
3176ff3e 2025 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2026
b2af9cb0
DP		 2027 if (!netif_running(adapter->netdev))
2028 return;
2029
74c520da 2030 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2031 return;
2032
74c520da
AKS		 2033 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2034 goto request_reset;
2035
16d884bd 2036 rtnl_lock();
74c520da
AKS		 2037 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2038 /* try to scrub interrupt */
2039 netxen_napi_disable(adapter);
ba53e6b4 2040
74c520da
AKS		 2041 netxen_napi_enable(adapter);
2042
2043 netif_wake_queue(adapter->netdev);
2044
a598ae17 2045 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2046 } else {
a598ae17 2047 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2048 if (netxen_nic_reset_context(adapter)) {
2049 rtnl_unlock();
2050 goto request_reset;
74c520da 2051 }
74c520da 2052 }
16d884bd
AKS		 2053 adapter->netdev->trans_start = jiffies;
2054 rtnl_unlock();
2055 return;
74c520da
AKS		 2056
2057request_reset:
2058 adapter->need_fw_reset = 1;
ff8a306d 2059 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2060}
2061
7e12bb0a 2062static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
a97342f9
DP		 2063{
2064 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 2065 struct net_device_stats *stats = &netdev->stats;
a97342f9 2066
1bb482f8 2067 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2068 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2069 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2070 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2071 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2072 stats->tx_dropped = adapter->stats.txdropped;
2073
2074 return stats;
2075}
2076
e4c93c81 2077static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2078{
d8b100c5
DP		 2079 struct nx_host_sds_ring *sds_ring = data;
2080 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2081 u32 status = 0;
2082
195c5f98 2083 status = readl(adapter->isr_int_vec);
d71e1be8 2084
195c5f98 2085 if (!(status & adapter->int_vec_bit))
05aaa02d 2086 return IRQ_NONE;
e01872af 2087
195c5f98 2088 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2089 /* check interrupt state machine, to be sure */
195c5f98 2090 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2091 if (!ISR_LEGACY_INT_TRIGGERED(status))
2092 return IRQ_NONE;
2093
092bc571
DP		 2094 } else {
2095 unsigned long our_int = 0;
d71e1be8 2096
195c5f98 2097 our_int = readl(adapter->crb_int_state_reg);
092bc571 2098
d71e1be8 2099 /* not our interrupt */
092bc571 2100 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2101 return IRQ_NONE;
2102
092bc571 2103 /* claim interrupt */
195c5f98 2104 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2105
195c5f98 2106 /* clear interrupt */
d8b100c5 2107 netxen_nic_disable_int(sds_ring);
195c5f98 2108 }
092bc571 2109
195c5f98 2110 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2111 /* read twice to ensure write is flushed */
195c5f98
AKS		 2112 readl(adapter->isr_int_vec);
2113 readl(adapter->isr_int_vec);
092bc571 2114
d8b100c5 2115 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2116
2117 return IRQ_HANDLED;
2118}
2119
e4c93c81 2120static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2121{
d8b100c5
DP		 2122 struct nx_host_sds_ring *sds_ring = data;
2123 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2124
092bc571 2125 /* clear interrupt */
195c5f98 2126 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2127
d8b100c5 2128 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2129 return IRQ_HANDLED;
2130}
2131
b3df68f8
DP		 2132static irqreturn_t netxen_msix_intr(int irq, void *data)
2133{
d8b100c5 2134 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2135
d8b100c5 2136 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2137 return IRQ_HANDLED;
2138}
2139
bea3348e 2140static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2141{
d8b100c5
DP		 2142 struct nx_host_sds_ring *sds_ring =
2143 container_of(napi, struct nx_host_sds_ring, napi);
2144
2145 struct netxen_adapter *adapter = sds_ring->adapter;
2146
05aaa02d 2147 int tx_complete;
bea3348e 2148 int work_done;
3d396eb1 2149
05aaa02d 2150 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2151
d8b100c5 2152 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2153
05aaa02d 2154 if ((work_done < budget) && tx_complete) {
d8b100c5 2155 napi_complete(&sds_ring->napi);
f2251f66 2156 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2157 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2158 }
2159
bea3348e 2160 return work_done;
3d396eb1
AK		 2161}
2162
2163#ifdef CONFIG_NET_POLL_CONTROLLER
2164static void netxen_nic_poll_controller(struct net_device *netdev)
2165{
7b589a35
YL		 2166 int ring;
2167 struct nx_host_sds_ring *sds_ring;
3176ff3e 2168 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2169 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2170
3d396eb1 2171 disable_irq(adapter->irq);
7b589a35
YL		 2172 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2173 sds_ring = &recv_ctx->sds_rings[ring];
2174 netxen_intr(adapter->irq, sds_ring);
2175 }
3d396eb1
AK		 2176 enable_irq(adapter->irq);
2177}
2178#endif
3d396eb1 2179
6a581e93
DP		 2180static int
2181nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2182{
2183 int count;
2184 if (netxen_api_lock(adapter))
2185 return -EIO;
2186
2187 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2188
2189 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2190
2191 netxen_api_unlock(adapter);
2192 return count;
2193}
2194
2195static int
2196nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2197{
2198 int count;
2199 if (netxen_api_lock(adapter))
2200 return -EIO;
2201
2202 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2203 WARN_ON(count == 0);
2204
2205 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2206
2207 if (count == 0)
2208 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2209
2210 netxen_api_unlock(adapter);
2211 return count;
2212}
2213
e87ad553
AKS		 2214static int
2215nx_dev_request_aer(struct netxen_adapter *adapter)
2216{
2217 u32 state;
2218 int ret = -EINVAL;
2219
2220 if (netxen_api_lock(adapter))
2221 return ret;
2222
2223 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2224
2225 if (state == NX_DEV_NEED_AER)
2226 ret = 0;
2227 else if (state == NX_DEV_READY) {
2228 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2229 ret = 0;
2230 }
2231
2232 netxen_api_unlock(adapter);
2233 return ret;
2234}
2235
2236static int
74c520da
AKS		 2237nx_dev_request_reset(struct netxen_adapter *adapter)
2238{
2239 u32 state;
e87ad553 2240 int ret = -EINVAL;
74c520da
AKS		 2241
2242 if (netxen_api_lock(adapter))
e87ad553 2243 return ret;
74c520da
AKS		 2244
2245 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2246
e87ad553
AKS		 2247 if (state == NX_DEV_NEED_RESET)
2248 ret = 0;
2249 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2250 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
e87ad553
AKS		 2251 ret = 0;
2252 }
74c520da
AKS		 2253
2254 netxen_api_unlock(adapter);
e87ad553
AKS		 2255
2256 return ret;
74c520da
AKS		 2257}
2258
6a581e93
DP		 2259static int
2260netxen_can_start_firmware(struct netxen_adapter *adapter)
2261{
2262 int count;
2263 int can_start = 0;
2264
2265 if (netxen_api_lock(adapter))
2266 return 0;
2267
2268 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2269
2270 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2271 count = 0;
2272
2273 if (count == 0) {
2274 can_start = 1;
2275 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2276 }
2277
2278 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2279
2280 netxen_api_unlock(adapter);
2281
2282 return can_start;
2283}
2284
2285static void
2286netxen_schedule_work(struct netxen_adapter *adapter,
2287 work_func_t func, int delay)
2288{
2289 INIT_DELAYED_WORK(&adapter->fw_work, func);
2290 schedule_delayed_work(&adapter->fw_work, delay);
2291}
2292
2293static void
2294netxen_cancel_fw_work(struct netxen_adapter *adapter)
2295{
2296 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2297 msleep(10);
2298
2299 cancel_delayed_work_sync(&adapter->fw_work);
2300}
2301
2302static void
2303netxen_attach_work(struct work_struct *work)
2304{
2305 struct netxen_adapter *adapter = container_of(work,
2306 struct netxen_adapter, fw_work.work);
2307 struct net_device *netdev = adapter->netdev;
2308 int err = 0;
2309
2310 if (netif_running(netdev)) {
2311 err = netxen_nic_attach(adapter);
2312 if (err)
2313 goto done;
2314
2315 err = netxen_nic_up(adapter, netdev);
2316 if (err) {
2317 netxen_nic_detach(adapter);
2318 goto done;
2319 }
2320
d0725e4d 2321 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2322 }
2323
2324 netif_device_attach(netdev);
2325
2326done:
2327 adapter->fw_fail_cnt = 0;
2328 clear_bit(__NX_RESETTING, &adapter->state);
2329 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2330}
2331
2332static void
2333netxen_fwinit_work(struct work_struct *work)
2334{
2335 struct netxen_adapter *adapter = container_of(work,
2336 struct netxen_adapter, fw_work.work);
2337 int dev_state;
2338
2339 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2340
2341 switch (dev_state) {
2342 case NX_DEV_COLD:
2343 case NX_DEV_READY:
74c520da
AKS		 2344 if (!netxen_start_firmware(adapter)) {
2345 netxen_schedule_work(adapter, netxen_attach_work, 0);
2346 return;
2347 }
2348 break;
6a581e93 2349
6b50ea15 2350 case NX_DEV_NEED_RESET:
6a581e93
DP		 2351 case NX_DEV_INITALIZING:
2352 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2353 netxen_schedule_work(adapter,
2354 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2355 return;
2356 }
6a581e93
DP		 2357
2358 case NX_DEV_FAILED:
2359 default:
8f9b3f69 2360 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2361 break;
2362 }
2363
6a581e93
DP		 2364 clear_bit(__NX_RESETTING, &adapter->state);
2365}
2366
2367static void
2368netxen_detach_work(struct work_struct *work)
2369{
2370 struct netxen_adapter *adapter = container_of(work,
2371 struct netxen_adapter, fw_work.work);
2372 struct net_device *netdev = adapter->netdev;
2373 int ref_cnt, delay;
2374 u32 status;
2375
2376 netif_device_detach(netdev);
2377
6f771419 2378 netxen_nic_down(adapter, netdev);
6a581e93 2379
e15eec28 2380 rtnl_lock();
6a581e93 2381 netxen_nic_detach(adapter);
e15eec28 2382 rtnl_unlock();
6a581e93
DP		 2383
2384 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2385
6a581e93 2386 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2387 goto err_ret;
6a581e93
DP		 2388
2389 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2390 goto err_ret;
2391
2392 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2393
6b50ea15
AKS		 2394 if (ref_cnt == -EIO)
2395 goto err_ret;
2396
6a581e93
DP		 2397 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2398
2399 adapter->fw_wait_cnt = 0;
2400 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2401
2402 return;
2403
2404err_ret:
2405 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2406}
2407
2408static int
2409netxen_check_health(struct netxen_adapter *adapter)
2410{
2411 u32 state, heartbit;
2412 struct net_device *netdev = adapter->netdev;
2413
e87ad553
AKS		 2414 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2415 if (state == NX_DEV_NEED_AER)
2416 return 0;
2417
6a581e93
DP		 2418 if (netxen_nic_check_temp(adapter))
2419 goto detach;
2420
74c520da 2421 if (adapter->need_fw_reset) {
e87ad553
AKS		 2422 if (nx_dev_request_reset(adapter))
2423 return 0;
74c520da
AKS		 2424 goto detach;
2425 }
2426
e87ad553
AKS		 2427 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2428 * 1. Tx timeout 2. Fw hang
2429 * Send request to destroy context in case of tx timeout only
2430 * and doesn't required in case of Fw hang
2431 */
6a808c6c
AKS		 2432 if (state == NX_DEV_NEED_RESET) {
2433 adapter->need_fw_reset = 1;
e87ad553
AKS		 2434 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2435 goto detach;
6a808c6c 2436 }
6a581e93
DP		 2437
2438 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2439 return 0;
2440
2441 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2442 if (heartbit != adapter->heartbit) {
2443 adapter->heartbit = heartbit;
2444 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2445 if (adapter->need_fw_reset)
2446 goto detach;
6a581e93
DP		 2447 return 0;
2448 }
2449
2450 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2451 return 0;
2452
e87ad553
AKS		 2453 if (nx_dev_request_reset(adapter))
2454 return 0;
2455
6a581e93
DP		 2456 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2457
2458 dev_info(&netdev->dev, "firmware hang detected\n");
2459
2460detach:
caa2dd53
NK		 2461 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2462 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2463 netxen_schedule_work(adapter, netxen_detach_work, 0);
2464 return 1;
2465}
2466
2467static void
2468netxen_fw_poll_work(struct work_struct *work)
2469{
2470 struct netxen_adapter *adapter = container_of(work,
2471 struct netxen_adapter, fw_work.work);
2472
2473 if (test_bit(__NX_RESETTING, &adapter->state))
2474 goto reschedule;
2475
2476 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2477 if (!adapter->has_link_events) {
2478
2479 netxen_nic_handle_phy_intr(adapter);
2480
2481 if (adapter->link_changed)
2482 netxen_nic_set_link_parameters(adapter);
2483 }
2484 }
2485
2486 if (netxen_check_health(adapter))
2487 return;
2488
2489reschedule:
2490 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2491}
2492
fa3ce355
NK		 2493static ssize_t
2494netxen_store_bridged_mode(struct device *dev,
2495 struct device_attribute *attr, const char *buf, size_t len)
2496{
2497 struct net_device *net = to_net_dev(dev);
2498 struct netxen_adapter *adapter = netdev_priv(net);
2499 unsigned long new;
2500 int ret = -EINVAL;
2501
2502 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2503 goto err_out;
2504
2505 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2506 goto err_out;
2507
2508 if (strict_strtoul(buf, 2, &new))
2509 goto err_out;
2510
2511 if (!netxen_config_bridged_mode(adapter, !!new))
2512 ret = len;
2513
2514err_out:
2515 return ret;
2516}
2517
2518static ssize_t
2519netxen_show_bridged_mode(struct device *dev,
2520 struct device_attribute *attr, char *buf)
2521{
2522 struct net_device *net = to_net_dev(dev);
2523 struct netxen_adapter *adapter;
2524 int bridged_mode = 0;
2525
2526 adapter = netdev_priv(net);
2527
2528 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2529 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2530
2531 return sprintf(buf, "%d\n", bridged_mode);
2532}
2533
2534static struct device_attribute dev_attr_bridged_mode = {
2535 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2536 .show = netxen_show_bridged_mode,
2537 .store = netxen_store_bridged_mode,
2538};
2539
70f9cf89
DP		 2540static ssize_t
2541netxen_store_diag_mode(struct device *dev,
2542 struct device_attribute *attr, const char *buf, size_t len)
2543{
2544 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2545 unsigned long new;
2546
2547 if (strict_strtoul(buf, 2, &new))
2548 return -EINVAL;
2549
2550 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2551 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2552
2553 return len;
2554}
2555
2556static ssize_t
2557netxen_show_diag_mode(struct device *dev,
2558 struct device_attribute *attr, char *buf)
2559{
2560 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2561
2562 return sprintf(buf, "%d\n",
2563 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2564}
2565
2566static struct device_attribute dev_attr_diag_mode = {
2567 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2568 .show = netxen_show_diag_mode,
2569 .store = netxen_store_diag_mode,
2570};
2571
2572static int
2573netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2574 loff_t offset, size_t size)
2575{
0b9715e6
AKS		 2576 size_t crb_size = 4;
2577
70f9cf89
DP		 2578 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2579 return -EIO;
2580
0b9715e6
AKS		 2581 if (offset < NETXEN_PCI_CRBSPACE) {
2582 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2583 return -EINVAL;
70f9cf89 2584
0b9715e6
AKS		 2585 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2586 NETXEN_PCI_CAMQM_2M_END))
2587 crb_size = 8;
2588 else
2589 return -EINVAL;
2590 }
2591
2592 if ((size != crb_size) || (offset & (crb_size-1)))
2593 return -EINVAL;
70f9cf89
DP		 2594
2595 return 0;
2596}
2597
2598static ssize_t
2c3c8bea
CW		 2599netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2600 struct bin_attribute *attr,
70f9cf89
DP		 2601 char *buf, loff_t offset, size_t size)
2602{
2603 struct device *dev = container_of(kobj, struct device, kobj);
2604 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2605 u32 data;
0b9715e6 2606 u64 qmdata;
70f9cf89
DP		 2607 int ret;
2608
2609 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2610 if (ret != 0)
2611 return ret;
2612
0b9715e6
AKS		 2613 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2614 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2615 NETXEN_PCI_CAMQM_2M_END)) {
2616 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2617 memcpy(buf, &qmdata, size);
2618 } else {
2619 data = NXRD32(adapter, offset);
2620 memcpy(buf, &data, size);
2621 }
2622
70f9cf89
DP		 2623 return size;
2624}
2625
2626static ssize_t
2c3c8bea
CW		 2627netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2628 struct bin_attribute *attr,
70f9cf89
DP		 2629 char *buf, loff_t offset, size_t size)
2630{
2631 struct device *dev = container_of(kobj, struct device, kobj);
2632 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2633 u32 data;
0b9715e6 2634 u64 qmdata;
70f9cf89
DP		 2635 int ret;
2636
2637 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2638 if (ret != 0)
2639 return ret;
2640
0b9715e6
AKS		 2641 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2642 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2643 NETXEN_PCI_CAMQM_2M_END)) {
2644 memcpy(&qmdata, buf, size);
2645 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2646 } else {
2647 memcpy(&data, buf, size);
2648 NXWR32(adapter, offset, data);
2649 }
2650
70f9cf89
DP		 2651 return size;
2652}
2653
2654static int
2655netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2656 loff_t offset, size_t size)
2657{
2658 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2659 return -EIO;
2660
2661 if ((size != 8) || (offset & 0x7))
2662 return -EIO;
2663
2664 return 0;
2665}
2666
2667static ssize_t
2c3c8bea
CW		 2668netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2669 struct bin_attribute *attr,
70f9cf89
DP		 2670 char *buf, loff_t offset, size_t size)
2671{
2672 struct device *dev = container_of(kobj, struct device, kobj);
2673 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2674 u64 data;
2675 int ret;
2676
2677 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2678 if (ret != 0)
2679 return ret;
2680
2681 if (adapter->pci_mem_read(adapter, offset, &data))
2682 return -EIO;
2683
2684 memcpy(buf, &data, size);
2685
2686 return size;
2687}
2688
2c3c8bea 2689static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2690 struct bin_attribute *attr, char *buf,
2691 loff_t offset, size_t size)
2692{
2693 struct device *dev = container_of(kobj, struct device, kobj);
2694 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2695 u64 data;
2696 int ret;
2697
2698 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2699 if (ret != 0)
2700 return ret;
2701
2702 memcpy(&data, buf, size);
2703
2704 if (adapter->pci_mem_write(adapter, offset, data))
2705 return -EIO;
2706
2707 return size;
2708}
2709
2710
2711static struct bin_attribute bin_attr_crb = {
2712 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2713 .size = 0,
2714 .read = netxen_sysfs_read_crb,
2715 .write = netxen_sysfs_write_crb,
2716};
2717
2718static struct bin_attribute bin_attr_mem = {
2719 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2720 .size = 0,
2721 .read = netxen_sysfs_read_mem,
2722 .write = netxen_sysfs_write_mem,
2723};
2724
caa2dd53 2725
fa3ce355
NK		 2726static void
2727netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2728{
2729 struct net_device *netdev = adapter->netdev;
2730 struct device *dev = &netdev->dev;
2731
2732 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2733 /* bridged_mode control */
2734 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2735 dev_warn(&netdev->dev,
2736 "failed to create bridged_mode sysfs entry\n");
2737 }
2738 }
2739}
2740
2741static void
2742netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2743{
2744 struct net_device *netdev = adapter->netdev;
2745 struct device *dev = &netdev->dev;
2746
2747 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2748 device_remove_file(dev, &dev_attr_bridged_mode);
2749}
2750
70f9cf89
DP		 2751static void
2752netxen_create_diag_entries(struct netxen_adapter *adapter)
2753{
2754 struct pci_dev *pdev = adapter->pdev;
2755 struct device *dev;
2756
2757 dev = &pdev->dev;
2758 if (device_create_file(dev, &dev_attr_diag_mode))
2759 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2760 if (device_create_bin_file(dev, &bin_attr_crb))
2761 dev_info(dev, "failed to create crb sysfs entry\n");
2762 if (device_create_bin_file(dev, &bin_attr_mem))
2763 dev_info(dev, "failed to create mem sysfs entry\n");
2764}
2765
2766
2767static void
2768netxen_remove_diag_entries(struct netxen_adapter *adapter)
2769{
2770 struct pci_dev *pdev = adapter->pdev;
2771 struct device *dev = &pdev->dev;
2772
2773 device_remove_file(dev, &dev_attr_diag_mode);
2774 device_remove_bin_file(dev, &bin_attr_crb);
2775 device_remove_bin_file(dev, &bin_attr_mem);
2776}
2777
044824d9
DP		 2778#ifdef CONFIG_INET
2779
6598b169
DP		 2780#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2781
2782static int
2783netxen_destip_supported(struct netxen_adapter *adapter)
2784{
2785 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2786 return 0;
2787
2788 if (adapter->ahw.cut_through)
2789 return 0;
2790
2791 return 1;
2792}
2793
d0725e4d
AKS		 2794static void
2795netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2796{
2797 struct in_device *indev;
2798 struct netxen_adapter *adapter = netdev_priv(dev);
2799
3db76755 2800 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2801 return;
2802
2803 indev = in_dev_get(dev);
2804 if (!indev)
2805 return;
2806
2807 for_ifa(indev) {
2808 switch (event) {
2809 case NETDEV_UP:
2810 netxen_config_ipaddr(adapter,
2811 ifa->ifa_address, NX_IP_UP);
2812 break;
2813 case NETDEV_DOWN:
2814 netxen_config_ipaddr(adapter,
2815 ifa->ifa_address, NX_IP_DOWN);
2816 break;
2817 default:
2818 break;
2819 }
2820 } endfor_ifa(indev);
2821
2822 in_dev_put(indev);
d0725e4d
AKS		 2823}
2824
6598b169
DP		 2825static int netxen_netdev_event(struct notifier_block *this,
2826 unsigned long event, void *ptr)
2827{
2828 struct netxen_adapter *adapter;
2829 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2830
2831recheck:
2832 if (dev == NULL)
2833 goto done;
2834
2835 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2836 dev = vlan_dev_real_dev(dev);
2837 goto recheck;
2838 }
2839
2840 if (!is_netxen_netdev(dev))
2841 goto done;
2842
2843 adapter = netdev_priv(dev);
2844
d0725e4d 2845 if (!adapter)
6598b169
DP		 2846 goto done;
2847
2848 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2849 goto done;
2850
d0725e4d 2851 netxen_config_indev_addr(dev, event);
6598b169
DP		 2852done:
2853 return NOTIFY_DONE;
2854}
2855
2856static int
2857netxen_inetaddr_event(struct notifier_block *this,
2858 unsigned long event, void *ptr)
2859{
2860 struct netxen_adapter *adapter;
2861 struct net_device *dev;
2862
2863 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2864
2865 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2866
2867recheck:
2868 if (dev == NULL || !netif_running(dev))
2869 goto done;
2870
2871 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2872 dev = vlan_dev_real_dev(dev);
2873 goto recheck;
2874 }
2875
2876 if (!is_netxen_netdev(dev))
2877 goto done;
2878
2879 adapter = netdev_priv(dev);
2880
2881 if (!adapter || !netxen_destip_supported(adapter))
2882 goto done;
2883
2884 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2885 goto done;
2886
2887 switch (event) {
2888 case NETDEV_UP:
2889 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2890 break;
2891 case NETDEV_DOWN:
2892 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2893 break;
2894 default:
2895 break;
2896 }
2897
2898done:
2899 return NOTIFY_DONE;
2900}
2901
2902static struct notifier_block netxen_netdev_cb = {
2903 .notifier_call = netxen_netdev_event,
2904};
2905
2906static struct notifier_block netxen_inetaddr_cb = {
2907 .notifier_call = netxen_inetaddr_event,
2908};
9feae56c
RD		 2909#else
2910static void
2911netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2912{ }
044824d9 2913#endif
6598b169 2914
e87ad553
AKS		 2915static struct pci_error_handlers netxen_err_handler = {
2916 .error_detected = netxen_io_error_detected,
2917 .slot_reset = netxen_io_slot_reset,
2918 .resume = netxen_io_resume,
2919};
2920
3d396eb1
AK		 2921static struct pci_driver netxen_driver = {
2922 .name = netxen_nic_driver_name,
2923 .id_table = netxen_pci_tbl,
2924 .probe = netxen_nic_probe,
0b72e659 2925 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2926#ifdef CONFIG_PM
0b72e659 2927 .suspend = netxen_nic_suspend,
22b5794b 2928 .resume = netxen_nic_resume,
01542cd1 2929#endif
e87ad553
AKS		 2930 .shutdown = netxen_nic_shutdown,
2931 .err_handler = &netxen_err_handler
3d396eb1
AK		 2932};
2933
3d396eb1
AK		 2934static int __init netxen_init_module(void)
2935{
ff4fbd43
DP		 2936 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2937
044824d9 2938#ifdef CONFIG_INET
6598b169
DP		 2939 register_netdevice_notifier(&netxen_netdev_cb);
2940 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2941#endif
184231bd 2942 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2943}
2944
2945module_init(netxen_init_module);
2946
2947static void __exit netxen_exit_module(void)
2948{
3d396eb1 2949 pci_unregister_driver(&netxen_driver);
6598b169 2950
044824d9 2951#ifdef CONFIG_INET
6598b169
DP		 2952 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2953 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2954#endif
3d396eb1
AK		 2955}
2956
2957module_exit(netxen_exit_module);
Linux kernel - Deliverables
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