]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/net/netxen/netxen_nic_main.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
netxen: fix minor tx timeout bug
[mirror_ubuntu-artful-kernel.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
AK		 21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.
80922fbc 23 *
3d396eb1
AK		 24 */
25
cb8011ad 26#include <linux/vmalloc.h>
e98e3350 27#include <linux/interrupt.h>
3d396eb1
AK		 28#include "netxen_nic_hw.h"
29
30#include "netxen_nic.h"
3d396eb1 31
1494a814 32#include <linux/dma-mapping.h>
391587c3 33#include <linux/if_vlan.h>
c9bdd4b5 34#include <net/ip.h>
00977784 35#include <linux/ipv6.h>
6598b169 36#include <linux/inetdevice.h>
1494a814 37
3d396eb1
AK		 38MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
39MODULE_LICENSE("GPL");
40MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
41
ceded32f 42char netxen_nic_driver_name[] = "netxen_nic";
3d396eb1 43static char netxen_nic_driver_string[] = "NetXen Network Driver version "
cb8011ad 44 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 45
2956640d
DP		 46static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
47
48/* Default to restricted 1G auto-neg mode */
49static int wol_port_mode = 5;
50
51static int use_msi = 1;
52
53static int use_msi_x = 1;
54
3d396eb1
AK		 55/* Local functions to NetXen NIC driver */
56static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 57 const struct pci_device_id *ent);
3d396eb1
AK		 58static void __devexit netxen_nic_remove(struct pci_dev *pdev);
59static int netxen_nic_open(struct net_device *netdev);
60static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 61static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
62 struct net_device *);
3d396eb1 63static void netxen_tx_timeout(struct net_device *netdev);
74c520da 64static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 65static void netxen_fw_poll_work(struct work_struct *work);
66static void netxen_schedule_work(struct netxen_adapter *adapter,
67 work_func_t func, int delay);
68static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 69static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 70#ifdef CONFIG_NET_POLL_CONTROLLER
71static void netxen_nic_poll_controller(struct net_device *netdev);
72#endif
fa3ce355
NK		 73
74static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
75static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
76
6a581e93
DP		 77static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
78static int netxen_can_start_firmware(struct netxen_adapter *adapter);
79
1494a814 80static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 81static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 82static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 83
d0725e4d
AKS		 84static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
85
3d396eb1 86/* PCI Device ID Table */
70081ac5 87#define ENTRY(device) \
040dec3b 88 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 89 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
90
3d396eb1 91static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 92 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
93 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
94 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
95 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
96 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
97 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
98 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
99 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 100 {0,}
101};
102
103MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
104
7830b22c
DP		 105static uint32_t crb_cmd_producer[4] = {
106 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
107 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
108};
109
c9fc891f 110void
3ce06a32 111netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 112 struct nx_host_tx_ring *tx_ring)
3176ff3e 113{
195c5f98 114 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
cb2107be
DP		 115
116 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
117 netif_stop_queue(adapter->netdev);
118 smp_mb();
119 }
3176ff3e
MT		 120}
121
7830b22c
DP		 122static uint32_t crb_cmd_consumer[4] = {
123 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
124 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
125};
126
3ce06a32
DP		 127static inline void
128netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 129 struct nx_host_tx_ring *tx_ring)
3176ff3e 130{
195c5f98 131 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 132}
133
2956640d 134static uint32_t msi_tgt_status[8] = {
443be796 135 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 136 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
137 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
138 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 139};
140
2956640d
DP		 141static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
142
d8b100c5 143static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 144{
d8b100c5
DP		 145 struct netxen_adapter *adapter = sds_ring->adapter;
146
195c5f98 147 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 148}
149
d8b100c5 150static inline void netxen_nic_enable_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, 0x1);
4638aef1 155
092bc571 156 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 157 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 158}
159
71dcddbd
DP		 160static int
161netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
162{
163 int size = sizeof(struct nx_host_sds_ring) * count;
164
165 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
166
167 return (recv_ctx->sds_rings == NULL);
168}
169
d8b100c5 170static void
71dcddbd
DP		 171netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
172{
173 if (recv_ctx->sds_rings != NULL)
174 kfree(recv_ctx->sds_rings);
232e7d68
DP		 175
176 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 177}
178
179static int
d8b100c5
DP		 180netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
181{
182 int ring;
183 struct nx_host_sds_ring *sds_ring;
184 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
185
71dcddbd 186 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 187 return -ENOMEM;
71dcddbd 188
d8b100c5
DP		 189 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
190 sds_ring = &recv_ctx->sds_rings[ring];
191 netif_napi_add(netdev, &sds_ring->napi,
192 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
193 }
71dcddbd
DP		 194
195 return 0;
d8b100c5
DP		 196}
197
232e7d68
DP		 198static void
199netxen_napi_del(struct netxen_adapter *adapter)
200{
201 int ring;
202 struct nx_host_sds_ring *sds_ring;
203 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
204
205 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
206 sds_ring = &recv_ctx->sds_rings[ring];
207 netif_napi_del(&sds_ring->napi);
208 }
209
210 netxen_free_sds_rings(&adapter->recv_ctx);
211}
212
d8b100c5
DP		 213static void
214netxen_napi_enable(struct netxen_adapter *adapter)
215{
216 int ring;
217 struct nx_host_sds_ring *sds_ring;
218 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
219
220 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
221 sds_ring = &recv_ctx->sds_rings[ring];
222 napi_enable(&sds_ring->napi);
223 netxen_nic_enable_int(sds_ring);
224 }
225}
226
227static void
228netxen_napi_disable(struct netxen_adapter *adapter)
229{
230 int ring;
231 struct nx_host_sds_ring *sds_ring;
232 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
233
234 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
235 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 236 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 237 napi_synchronize(&sds_ring->napi);
238 napi_disable(&sds_ring->napi);
d8b100c5
DP		 239 }
240}
241
50c643e7 242static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 243{
244 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 245 uint64_t mask, cmask;
246
247 adapter->pci_using_dac = 0;
2956640d 248
6afd142f 249 mask = DMA_BIT_MASK(32);
6afd142f 250 cmask = DMA_BIT_MASK(32);
1f434f63 251
50c643e7 252 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 253#ifndef CONFIG_IA64
6afd142f 254 mask = DMA_BIT_MASK(35);
1f434f63 255#endif
50c643e7
DP		 256 } else {
257 mask = DMA_BIT_MASK(39);
258 cmask = mask;
259 }
260
2956640d 261 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 262 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 263 adapter->pci_using_dac = 1;
264 return 0;
265 }
2956640d 266
1f434f63
DP		 267 return -EIO;
268}
269
270/* Update addressable range if firmware supports it */
271static int
272nx_update_dma_mask(struct netxen_adapter *adapter)
273{
274 int change, shift, err;
50c643e7 275 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 276 struct pci_dev *pdev = adapter->pdev;
277
278 change = 0;
279
f98a9f69 280 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 281 if (shift > 32)
1f434f63
DP		 282 return 0;
283
284 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
285 change = 1;
286 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
287 change = 1;
288
289 if (change) {
290 old_mask = pdev->dma_mask;
50c643e7
DP		 291 old_cmask = pdev->dev.coherent_dma_mask;
292
f60f7856 293 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 294
295 err = pci_set_dma_mask(pdev, mask);
296 if (err)
50c643e7
DP		 297 goto err_out;
298
299 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
300
301 err = pci_set_consistent_dma_mask(pdev, mask);
302 if (err)
303 goto err_out;
304 }
305 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 306 }
307
2956640d 308 return 0;
50c643e7
DP		 309
310err_out:
311 pci_set_dma_mask(pdev, old_mask);
312 pci_set_consistent_dma_mask(pdev, old_cmask);
313 return err;
2956640d
DP		 314}
315
2956640d
DP		 316static int
317netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
318{
27c915a4 319 u32 val, timeout;
2956640d
DP		 320
321 if (first_boot == 0x55555555) {
322 /* This is the first boot after power up */
f98a9f69 323 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 324
325 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
326 return 0;
2956640d
DP		 327
328 /* PCI bus master workaround */
f98a9f69 329 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 330 if (!(first_boot & 0x4)) {
331 first_boot |= 0x4;
f98a9f69
DP		 332 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
333 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 334 }
335
336 /* This is the first boot after power up */
f98a9f69 337 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 338 if (first_boot != 0x80000f) {
339 /* clear the register for future unloads/loads */
f98a9f69 340 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 341 return -EIO;
2956640d
DP		 342 }
343
27c915a4 344 /* Start P2 boot loader */
f98a9f69
DP		 345 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
346 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 347 timeout = 0;
348 do {
349 msleep(1);
f98a9f69 350 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 351
352 if (++timeout > 5000)
353 return -EIO;
354
355 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 356 }
27c915a4 357 return 0;
2956640d
DP		 358}
359
360static void netxen_set_port_mode(struct netxen_adapter *adapter)
361{
362 u32 val, data;
363
1e2d0059 364 val = adapter->ahw.board_type;
2956640d
DP		 365 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
366 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
367 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
368 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 369 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 370 } else if (port_mode == NETXEN_PORT_MODE_XG) {
371 data = NETXEN_PORT_MODE_XG;
f98a9f69 372 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 373 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
374 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 376 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
377 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 379 } else {
380 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 382 }
383
384 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
385 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
386 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
387 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
388 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
389 }
f98a9f69 390 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 391 }
392}
393
2956640d
DP		 394static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
395{
396 u32 control;
397 int pos;
398
399 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
400 if (pos) {
401 pci_read_config_dword(pdev, pos, &control);
402 if (enable)
403 control |= PCI_MSIX_FLAGS_ENABLE;
404 else
405 control = 0;
406 pci_write_config_dword(pdev, pos, control);
407 }
408}
409
be339aee 410static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 411{
412 int i;
413
be339aee 414 for (i = 0; i < count; i++)
2956640d
DP		 415 adapter->msix_entries[i].entry = i;
416}
417
9dc28efe
DP		 418static int
419netxen_read_mac_addr(struct netxen_adapter *adapter)
420{
421 int i;
422 unsigned char *p;
423 __le64 mac_addr;
9dc28efe
DP		 424 struct net_device *netdev = adapter->netdev;
425 struct pci_dev *pdev = adapter->pdev;
426
9dc28efe
DP		 427 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
428 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
429 return -EIO;
430 } else {
431 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
432 return -EIO;
433 }
434
435 p = (unsigned char *)&mac_addr;
436 for (i = 0; i < 6; i++)
437 netdev->dev_addr[i] = *(p + 5 - i);
438
439 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
440
441 /* set station address */
442
e174961c
JB		 443 if (!is_valid_ether_addr(netdev->perm_addr))
444 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 445
446 return 0;
447}
448
3d0a3cc9
DP		 449int netxen_nic_set_mac(struct net_device *netdev, void *p)
450{
451 struct netxen_adapter *adapter = netdev_priv(netdev);
452 struct sockaddr *addr = p;
453
454 if (!is_valid_ether_addr(addr->sa_data))
455 return -EINVAL;
456
457 if (netif_running(netdev)) {
458 netif_device_detach(netdev);
459 netxen_napi_disable(adapter);
460 }
461
462 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
463 adapter->macaddr_set(adapter, addr->sa_data);
464
465 if (netif_running(netdev)) {
466 netif_device_attach(netdev);
467 netxen_napi_enable(adapter);
468 }
469 return 0;
470}
471
1abd266f
SH		 472static void netxen_set_multicast_list(struct net_device *dev)
473{
474 struct netxen_adapter *adapter = netdev_priv(dev);
475
3d0a3cc9 476 adapter->set_multi(dev);
1abd266f
SH		 477}
478
479static const struct net_device_ops netxen_netdev_ops = {
480 .ndo_open = netxen_nic_open,
481 .ndo_stop = netxen_nic_close,
482 .ndo_start_xmit = netxen_nic_xmit_frame,
483 .ndo_get_stats = netxen_nic_get_stats,
484 .ndo_validate_addr = eth_validate_addr,
485 .ndo_set_multicast_list = netxen_set_multicast_list,
486 .ndo_set_mac_address = netxen_nic_set_mac,
487 .ndo_change_mtu = netxen_nic_change_mtu,
488 .ndo_tx_timeout = netxen_tx_timeout,
489#ifdef CONFIG_NET_POLL_CONTROLLER
490 .ndo_poll_controller = netxen_nic_poll_controller,
491#endif
492};
493
97daee83
DP		 494static void
495netxen_setup_intr(struct netxen_adapter *adapter)
496{
497 struct netxen_legacy_intr_set *legacy_intrp;
498 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 499 int err, num_msix;
500
501 if (adapter->rss_supported) {
502 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
503 MSIX_ENTRIES_PER_ADAPTER : 2;
504 } else
505 num_msix = 1;
506
507 adapter->max_sds_rings = 1;
97daee83
DP		 508
509 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 510
511 if (adapter->ahw.revision_id >= NX_P3_B0)
512 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
513 else
514 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 515
516 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
517 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
518 legacy_intrp->tgt_status_reg);
519 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
520 legacy_intrp->tgt_mask_reg);
521 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
522 legacy_intrp->pci_int_reg);
523 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
524
525 if (adapter->ahw.revision_id >= NX_P3_B1)
526 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
527 ISR_INT_STATE_REG);
528 else
529 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
530 CRB_INT_VECTOR);
97daee83
DP		 531
532 netxen_set_msix_bit(pdev, 0);
533
534 if (adapter->msix_supported) {
535
be339aee
DP		 536 netxen_init_msix_entries(adapter, num_msix);
537 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
538 if (err == 0) {
539 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
540 netxen_set_msix_bit(pdev, 1);
97daee83 541
be339aee
DP		 542 if (adapter->rss_supported)
543 adapter->max_sds_rings = num_msix;
97daee83 544
be339aee
DP		 545 dev_info(&pdev->dev, "using msi-x interrupts\n");
546 return;
547 }
548
549 if (err > 0)
550 pci_disable_msix(pdev);
551
552 /* fall through for msi */
97daee83 553 }
be339aee
DP		 554
555 if (use_msi && !pci_enable_msi(pdev)) {
556 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 557 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
558 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 559 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 560 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 561 return;
562 }
563
564 dev_info(&pdev->dev, "using legacy interrupts\n");
565 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 566}
567
568static void
569netxen_teardown_intr(struct netxen_adapter *adapter)
570{
571 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
572 pci_disable_msix(adapter->pdev);
573 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
574 pci_disable_msi(adapter->pdev);
575}
576
577static void
578netxen_cleanup_pci_map(struct netxen_adapter *adapter)
579{
580 if (adapter->ahw.db_base != NULL)
581 iounmap(adapter->ahw.db_base);
582 if (adapter->ahw.pci_base0 != NULL)
583 iounmap(adapter->ahw.pci_base0);
584 if (adapter->ahw.pci_base1 != NULL)
585 iounmap(adapter->ahw.pci_base1);
586 if (adapter->ahw.pci_base2 != NULL)
587 iounmap(adapter->ahw.pci_base2);
588}
589
590static int
591netxen_setup_pci_map(struct netxen_adapter *adapter)
592{
593 void __iomem *mem_ptr0 = NULL;
594 void __iomem *mem_ptr1 = NULL;
595 void __iomem *mem_ptr2 = NULL;
596 void __iomem *db_ptr = NULL;
597
97daee83
DP		 598 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
599
600 struct pci_dev *pdev = adapter->pdev;
601 int pci_func = adapter->ahw.pci_func;
602
603 int err = 0;
604
605 /*
606 * Set the CRB window to invalid. If any register in window 0 is
607 * accessed it should set the window to 0 and then reset it to 1.
608 */
609 adapter->curr_window = 255;
610 adapter->ahw.qdr_sn_window = -1;
611 adapter->ahw.ddr_mn_window = -1;
612
613 /* remap phys address */
614 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
615 mem_len = pci_resource_len(pdev, 0);
616 pci_len0 = 0;
617
97daee83
DP		 618 /* 128 Meg of memory */
619 if (mem_len == NETXEN_PCI_128MB_SIZE) {
620 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
621 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
622 SECOND_PAGE_GROUP_SIZE);
623 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
624 THIRD_PAGE_GROUP_SIZE);
97daee83
DP		 625 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
626 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
627 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
628 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83 629 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83
DP		 630
631 mem_ptr0 = pci_ioremap_bar(pdev, 0);
632 if (mem_ptr0 == NULL) {
633 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
634 return -EIO;
635 }
636 pci_len0 = mem_len;
97daee83
DP		 637
638 adapter->ahw.ddr_mn_window = 0;
639 adapter->ahw.qdr_sn_window = 0;
640
ea6828b8
DP		 641 adapter->ahw.mn_win_crb = NETXEN_PCI_CRBSPACE +
642 0x100000 + PCIX_MN_WINDOW + (pci_func * 0x20);
643 adapter->ahw.ms_win_crb = NETXEN_PCI_CRBSPACE +
644 0x100000 + PCIX_SN_WINDOW;
97daee83
DP		 645 if (pci_func < 4)
646 adapter->ahw.ms_win_crb += (pci_func * 0x20);
647 else
648 adapter->ahw.ms_win_crb +=
649 0xA0 + ((pci_func - 4) * 0x10);
650 } else {
651 return -EIO;
652 }
653
195c5f98
AKS		 654 netxen_setup_hwops(adapter);
655
97daee83
DP		 656 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
657
658 adapter->ahw.pci_base0 = mem_ptr0;
659 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 660 adapter->ahw.pci_base1 = mem_ptr1;
661 adapter->ahw.pci_base2 = mem_ptr2;
662
663 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
664 goto skip_doorbell;
665
666 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
667 db_len = pci_resource_len(pdev, 4);
668
669 if (db_len == 0) {
670 printk(KERN_ERR "%s: doorbell is disabled\n",
671 netxen_nic_driver_name);
672 err = -EIO;
673 goto err_out;
674 }
675
676 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
677 if (!db_ptr) {
678 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
679 netxen_nic_driver_name);
680 err = -EIO;
681 goto err_out;
682 }
683
684skip_doorbell:
685 adapter->ahw.db_base = db_ptr;
686 adapter->ahw.db_len = db_len;
687 return 0;
688
689err_out:
690 netxen_cleanup_pci_map(adapter);
691 return err;
692}
693
2b9e62ee
DP		 694static void
695netxen_check_options(struct netxen_adapter *adapter)
696{
697 u32 fw_major, fw_minor, fw_build;
698 char brd_name[NETXEN_MAX_SHORT_NAME];
699 char serial_num[32];
700 int i, offset, val;
701 int *ptr32;
702 struct pci_dev *pdev = adapter->pdev;
703
704 adapter->driver_mismatch = 0;
705
706 ptr32 = (int *)&serial_num;
707 offset = NX_FW_SERIAL_NUM_OFFSET;
708 for (i = 0; i < 8; i++) {
709 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
710 dev_err(&pdev->dev, "error reading board info\n");
711 adapter->driver_mismatch = 1;
712 return;
713 }
714 ptr32[i] = cpu_to_le32(val);
715 offset += sizeof(u32);
716 }
717
718 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
719 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
720 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
721
722 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
723
724 if (adapter->portnum == 0) {
725 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
726
727 printk(KERN_INFO "NetXen %s Board S/N %s Chip rev 0x%x\n",
728 brd_name, serial_num, adapter->ahw.revision_id);
729 }
730
731 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
732 adapter->driver_mismatch = 1;
733 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
734 fw_major, fw_minor, fw_build);
735 return;
736 }
737
738 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
739 i = NXRD32(adapter, NETXEN_SRE_MISC);
740 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
741 }
742
743 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
744 fw_major, fw_minor, fw_build,
745 adapter->ahw.cut_through ? "cut-through" : "legacy");
746
747 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
748 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
749
750 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
751
752 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
753 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
754 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
755 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
756 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
757 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
758 }
759
760 adapter->msix_supported = 0;
761 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
762 adapter->msix_supported = !!use_msi_x;
763 adapter->rss_supported = !!use_msi_x;
764 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
765 switch (adapter->ahw.board_type) {
766 case NETXEN_BRDTYPE_P2_SB31_10G:
767 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
768 adapter->msix_supported = !!use_msi_x;
769 adapter->rss_supported = !!use_msi_x;
770 break;
771 default:
772 break;
773 }
774 }
775
776 adapter->num_txd = MAX_CMD_DESCRIPTORS;
777
778 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
779 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
780 adapter->max_rds_rings = 3;
781 } else {
782 adapter->num_lro_rxd = 0;
783 adapter->max_rds_rings = 2;
784 }
785}
786
ba599d4f 787static int
6a581e93 788netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 789{
790 int val, err, first_boot;
791 struct pci_dev *pdev = adapter->pdev;
792
2b9e62ee
DP		 793 /* required for NX2031 dummy dma */
794 err = nx_set_dma_mask(adapter);
795 if (err)
796 return err;
797
6a581e93 798 if (!netxen_can_start_firmware(adapter))
96f2ebd2 799 goto wait_init;
0b72e659 800
f98a9f69 801 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 802
803 err = netxen_check_hw_init(adapter, first_boot);
804 if (err) {
805 dev_err(&pdev->dev, "error in init HW init sequence\n");
806 return err;
807 }
808
6a581e93 809 netxen_request_firmware(adapter);
f7185c71 810
67c38fc6 811 err = netxen_need_fw_reset(adapter);
1dbc84a7 812 if (err < 0)
db4cfd8a 813 goto err_out;
1dbc84a7 814 if (err == 0)
ec5c50cb 815 goto ready;
67c38fc6 816
ba599d4f 817 if (first_boot != 0x55555555) {
f98a9f69 818 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
ba599d4f
DP		 819 netxen_pinit_from_rom(adapter, 0);
820 msleep(1);
821 }
567c6c4e 822
f98a9f69 823 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 824 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
825 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
826
567c6c4e
DP		 827 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
828 netxen_set_port_mode(adapter);
829
db4cfd8a
DP		 830 err = netxen_load_firmware(adapter);
831 if (err)
832 goto err_out;
ba599d4f 833
6a581e93
DP		 834 netxen_release_firmware(adapter);
835
ba599d4f
DP		 836 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
837
838 /* Initialize multicast addr pool owners */
839 val = 0x7654;
1e2d0059 840 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 841 val |= 0x0f000000;
f98a9f69 842 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 843
844 }
845
83ac51fa 846 err = netxen_init_dummy_dma(adapter);
ba599d4f 847 if (err)
db4cfd8a 848 goto err_out;
ba599d4f
DP		 849
850 /*
851 * Tell the hardware our version number.
852 */
853 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
854 | ((_NETXEN_NIC_LINUX_MINOR << 8))
855 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 856 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 857
ec5c50cb 858ready:
6a581e93
DP		 859 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
860
96f2ebd2 861wait_init:
ba599d4f
DP		 862 /* Handshake with the card before we register the devices. */
863 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
864 if (err) {
83ac51fa 865 netxen_free_dummy_dma(adapter);
db4cfd8a 866 goto err_out;
ba599d4f
DP		 867 }
868
68b3cae0
DP		 869 nx_update_dma_mask(adapter);
870
6a581e93 871 netxen_check_options(adapter);
68b3cae0 872
74c520da
AKS		 873 adapter->need_fw_reset = 0;
874
ec5c50cb 875 /* fall through and release firmware */
db4cfd8a
DP		 876
877err_out:
878 netxen_release_firmware(adapter);
879 return err;
ba599d4f
DP		 880}
881
9f5bc7f1
DP		 882static int
883netxen_nic_request_irq(struct netxen_adapter *adapter)
884{
885 irq_handler_t handler;
d8b100c5
DP		 886 struct nx_host_sds_ring *sds_ring;
887 int err, ring;
888
9f5bc7f1
DP		 889 unsigned long flags = IRQF_SAMPLE_RANDOM;
890 struct net_device *netdev = adapter->netdev;
d8b100c5 891 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 892
9f5bc7f1
DP		 893 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
894 handler = netxen_msix_intr;
895 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
896 handler = netxen_msi_intr;
897 else {
898 flags |= IRQF_SHARED;
899 handler = netxen_intr;
900 }
901 adapter->irq = netdev->irq;
902
d8b100c5
DP		 903 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
904 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 905 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 906 err = request_irq(sds_ring->irq, handler,
907 flags, sds_ring->name, sds_ring);
908 if (err)
909 return err;
910 }
911
912 return 0;
913}
914
915static void
916netxen_nic_free_irq(struct netxen_adapter *adapter)
917{
918 int ring;
919 struct nx_host_sds_ring *sds_ring;
920
921 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
922
923 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
924 sds_ring = &recv_ctx->sds_rings[ring];
925 free_irq(sds_ring->irq, sds_ring);
926 }
9f5bc7f1
DP		 927}
928
ca2ef330
DP		 929static void
930netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
931{
932 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
933 adapter->coal.normal.data.rx_time_us =
934 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
935 adapter->coal.normal.data.rx_packets =
936 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
937 adapter->coal.normal.data.tx_time_us =
938 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
939 adapter->coal.normal.data.tx_packets =
940 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
941}
942
9f5bc7f1
DP		 943static int
944netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
945{
946 int err;
947
db4cfd8a
DP		 948 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
949 return -EIO;
950
9f5bc7f1
DP		 951 err = adapter->init_port(adapter, adapter->physical_port);
952 if (err) {
953 printk(KERN_ERR "%s: Failed to initialize port %d\n",
954 netxen_nic_driver_name, adapter->portnum);
955 return err;
956 }
3d0a3cc9
DP		 957 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
958 adapter->macaddr_set(adapter, netdev->dev_addr);
9f5bc7f1 959
3d0a3cc9
DP		 960 adapter->set_multi(netdev);
961 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 962
963 adapter->ahw.linkup = 0;
9f5bc7f1 964
d8b100c5
DP		 965 if (adapter->max_sds_rings > 1)
966 netxen_config_rss(adapter, 1);
9f5bc7f1 967
ca2ef330
DP		 968 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
969 netxen_config_intr_coalesce(adapter);
970
1bb482f8
NK		 971 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
972 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
973
b2af9cb0
DP		 974 netxen_napi_enable(adapter);
975
5103c9f7 976 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 977 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 978 else
979 netxen_nic_set_link_parameters(adapter);
980
6a581e93 981 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 982 return 0;
983}
984
985static void
986netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
987{
db4cfd8a
DP		 988 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
989 return;
990
6a581e93
DP		 991 clear_bit(__NX_DEV_UP, &adapter->state);
992
b2af9cb0 993 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 994 netif_carrier_off(netdev);
b2af9cb0 995 netif_tx_disable(netdev);
9f5bc7f1
DP		 996
997 if (adapter->stop_port)
998 adapter->stop_port(adapter);
999
5cf4d323
DP		 1000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1001 netxen_p3_free_mac_list(adapter);
1002
22b5794b
AKS		 1003 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1004
be339aee
DP		 1005 netxen_napi_disable(adapter);
1006
9f5bc7f1 1007 netxen_release_tx_buffers(adapter);
b2af9cb0 1008 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1009}
1010
1011
1012static int
1013netxen_nic_attach(struct netxen_adapter *adapter)
1014{
1015 struct net_device *netdev = adapter->netdev;
1016 struct pci_dev *pdev = adapter->pdev;
becf46a0 1017 int err, ring;
d8b100c5 1018 struct nx_host_rds_ring *rds_ring;
d877f1e3 1019 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1020
7042cd8f
AKS		 1021 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1022 return 0;
1023
9f5bc7f1 1024 err = netxen_init_firmware(adapter);
232e7d68
DP		 1025 if (err)
1026 return err;
1027
1028 err = netxen_napi_add(adapter, netdev);
1029 if (err)
1030 return err;
9f5bc7f1 1031
9f5bc7f1
DP		 1032 err = netxen_alloc_sw_resources(adapter);
1033 if (err) {
1034 printk(KERN_ERR "%s: Error in setting sw resources\n",
1035 netdev->name);
1036 return err;
1037 }
1038
9f5bc7f1
DP		 1039 err = netxen_alloc_hw_resources(adapter);
1040 if (err) {
1041 printk(KERN_ERR "%s: Error in setting hw resources\n",
1042 netdev->name);
1043 goto err_out_free_sw;
1044 }
1045
4f96b988 1046 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1047 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1048 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1049 crb_cmd_producer[adapter->portnum]);
1050 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1051 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1052
cb2107be
DP		 1053 tx_ring->producer = 0;
1054 tx_ring->sw_consumer = 0;
1055
1056 netxen_nic_update_cmd_producer(adapter, tx_ring);
1057 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1058 }
1059
d8b100c5
DP		 1060 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1061 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1062 netxen_post_rx_buffers(adapter, ring, rds_ring);
1063 }
9f5bc7f1
DP		 1064
1065 err = netxen_nic_request_irq(adapter);
1066 if (err) {
1067 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1068 netdev->name);
1069 goto err_out_free_rxbuf;
1070 }
1071
ca2ef330
DP		 1072 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1073 netxen_nic_init_coalesce_defaults(adapter);
1074
fa3ce355
NK		 1075 netxen_create_sysfs_entries(adapter);
1076
9f5bc7f1
DP		 1077 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1078 return 0;
1079
1080err_out_free_rxbuf:
1081 netxen_release_rx_buffers(adapter);
1082 netxen_free_hw_resources(adapter);
1083err_out_free_sw:
1084 netxen_free_sw_resources(adapter);
1085 return err;
1086}
1087
1088static void
1089netxen_nic_detach(struct netxen_adapter *adapter)
1090{
7042cd8f
AKS		 1091 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1092 return;
1093
fa3ce355
NK		 1094 netxen_remove_sysfs_entries(adapter);
1095
9f5bc7f1 1096 netxen_free_hw_resources(adapter);
cf981ffb 1097 netxen_release_rx_buffers(adapter);
be339aee 1098 netxen_nic_free_irq(adapter);
232e7d68 1099 netxen_napi_del(adapter);
9f5bc7f1
DP		 1100 netxen_free_sw_resources(adapter);
1101
1102 adapter->is_up = 0;
1103}
1104
7042cd8f
AKS		 1105int
1106netxen_nic_reset_context(struct netxen_adapter *adapter)
1107{
1108 int err = 0;
1109 struct net_device *netdev = adapter->netdev;
1110
6a581e93
DP		 1111 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1112 return -EBUSY;
1113
7042cd8f
AKS		 1114 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1115
6a581e93
DP		 1116 netif_device_detach(netdev);
1117
7042cd8f
AKS		 1118 if (netif_running(netdev))
1119 netxen_nic_down(adapter, netdev);
1120
1121 netxen_nic_detach(adapter);
1122
6a581e93
DP		 1123 if (netif_running(netdev)) {
1124 err = netxen_nic_attach(adapter);
1125 if (!err)
1126 err = netxen_nic_up(adapter, netdev);
7042cd8f 1127
6a581e93
DP		 1128 if (err)
1129 goto done;
1130 }
1131
1132 netif_device_attach(netdev);
7042cd8f 1133 }
6a581e93 1134
7042cd8f 1135done:
6a581e93 1136 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1137 return err;
1138}
1139
f17443f4
DP		 1140static int
1141netxen_setup_netdev(struct netxen_adapter *adapter,
1142 struct net_device *netdev)
1143{
1144 int err = 0;
1145 struct pci_dev *pdev = adapter->pdev;
1146
1147 adapter->rx_csum = 1;
1148 adapter->mc_enabled = 0;
1149 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1150 adapter->max_mc_count = 38;
1151 else
1152 adapter->max_mc_count = 16;
1153
1154 netdev->netdev_ops = &netxen_netdev_ops;
1155 netdev->watchdog_timeo = 2*HZ;
1156
1157 netxen_nic_change_mtu(netdev, netdev->mtu);
1158
1159 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1160
1161 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1162 netdev->features |= (NETIF_F_GRO);
1163 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1164
1165 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1166 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1167 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1168 }
1169
1170 if (adapter->pci_using_dac) {
1171 netdev->features |= NETIF_F_HIGHDMA;
1172 netdev->vlan_features |= NETIF_F_HIGHDMA;
1173 }
1174
028afe71
DP		 1175 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1176 netdev->features |= (NETIF_F_HW_VLAN_TX);
1177
1bb482f8
NK		 1178 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1179 netdev->features |= NETIF_F_LRO;
1180
f17443f4
DP		 1181 netdev->irq = adapter->msix_entries[0].vector;
1182
74c520da 1183 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1184
1185 if (netxen_read_mac_addr(adapter))
1186 dev_warn(&pdev->dev, "failed to read mac addr\n");
1187
1188 netif_carrier_off(netdev);
1189 netif_stop_queue(netdev);
1190
1191 err = register_netdev(netdev);
1192 if (err) {
1193 dev_err(&pdev->dev, "failed to register net device\n");
1194 return err;
1195 }
1196
1197 return 0;
1198}
1199
3d396eb1
AK		 1200static int __devinit
1201netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1202{
1203 struct net_device *netdev = NULL;
1204 struct netxen_adapter *adapter = NULL;
2956640d 1205 int i = 0, err;
3176ff3e 1206 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1207 uint8_t revision_id;
3d396eb1 1208
3176ff3e 1209 if (pdev->class != 0x020000) {
dcd56fdb 1210 printk(KERN_DEBUG "NetXen function %d, class %x will not "
3176ff3e 1211 "be enabled.\n",pci_func_id, pdev->class);
ed25ffa1
AK		 1212 return -ENODEV;
1213 }
2956640d 1214
11d89d63
DP		 1215 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1216 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1217 "will not be enabled.\n",
1218 NX_P3_A0, NX_P3_B1);
1219 return -ENODEV;
1220 }
1221
3d396eb1
AK		 1222 if ((err = pci_enable_device(pdev)))
1223 return err;
2956640d 1224
3d396eb1
AK		 1225 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1226 err = -ENODEV;
1227 goto err_out_disable_pdev;
1228 }
1229
1230 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1231 goto err_out_disable_pdev;
1232
1233 pci_set_master(pdev);
3176ff3e
MT		 1234
1235 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1236 if(!netdev) {
f17443f4
DP		 1237 dev_err(&pdev->dev, "failed to allocate net_device\n");
1238 err = -ENOMEM;
3176ff3e
MT		 1239 goto err_out_free_res;
1240 }
1241
3176ff3e
MT		 1242 SET_NETDEV_DEV(netdev, &pdev->dev);
1243
4cf1653a 1244 adapter = netdev_priv(netdev);
2956640d
DP		 1245 adapter->netdev = netdev;
1246 adapter->pdev = pdev;
13ba9c77 1247 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1248
1249 revision_id = pdev->revision;
1250 adapter->ahw.revision_id = revision_id;
1251
3ce06a32 1252 rwlock_init(&adapter->adapter_lock);
d8b100c5 1253 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1254 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1255
97daee83
DP		 1256 err = netxen_setup_pci_map(adapter);
1257 if (err)
6c80b18d 1258 goto err_out_free_netdev;
3d396eb1 1259
2d1a3bbd 1260 /* This will be reset for mezz cards */
3176ff3e 1261 adapter->portnum = pci_func_id;
3176ff3e 1262
f17443f4
DP		 1263 err = netxen_nic_get_board_info(adapter);
1264 if (err) {
1265 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1266 goto err_out_iounmap;
1267 }
6c80b18d 1268
13ba9c77 1269 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1270 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1271 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1272 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1273 if (pci_func_id >= 2)
13ba9c77 1274 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1275 break;
1276 default:
1277 break;
1278 }
13ba9c77 1279
6a581e93 1280 err = netxen_start_firmware(adapter);
0b72e659
DP		 1281 if (err)
1282 goto err_out_iounmap;
f17443f4 1283
3d396eb1 1284 /*
6c80b18d 1285 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1286 */
dcd56fdb 1287 adapter->physical_port = adapter->portnum;
4f96b988 1288 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1289 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1290 if (i != 0x55555555)
1291 adapter->physical_port = i;
1292 }
6c80b18d 1293
6a581e93 1294 netxen_nic_clear_stats(adapter);
2956640d 1295
97daee83 1296 netxen_setup_intr(adapter);
2956640d 1297
f17443f4 1298 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1299 if (err)
2956640d 1300 goto err_out_disable_msi;
6c80b18d
MT		 1301
1302 pci_set_drvdata(pdev, adapter);
3d396eb1 1303
6a581e93
DP		 1304 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1305
1e2d0059 1306 switch (adapter->ahw.port_type) {
2956640d
DP		 1307 case NETXEN_NIC_GBE:
1308 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1309 adapter->netdev->name);
1310 break;
1311 case NETXEN_NIC_XGBE:
1312 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1313 adapter->netdev->name);
1314 break;
3d396eb1 1315 }
3d396eb1 1316
2956640d
DP		 1317 return 0;
1318
1319err_out_disable_msi:
97daee83 1320 netxen_teardown_intr(adapter);
6c80b18d 1321
83ac51fa 1322 netxen_free_dummy_dma(adapter);
3d396eb1 1323
6a581e93
DP		 1324 nx_decr_dev_ref_cnt(adapter);
1325
2956640d 1326err_out_iounmap:
97daee83 1327 netxen_cleanup_pci_map(adapter);
cb8011ad 1328
6c80b18d
MT		 1329err_out_free_netdev:
1330 free_netdev(netdev);
1331
1332err_out_free_res:
3d396eb1 1333 pci_release_regions(pdev);
6c80b18d
MT		 1334
1335err_out_disable_pdev:
2956640d 1336 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1337 pci_disable_device(pdev);
1338 return err;
1339}
1340
1341static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1342{
1343 struct netxen_adapter *adapter;
3176ff3e 1344 struct net_device *netdev;
3d396eb1 1345
6c80b18d 1346 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1347 if (adapter == NULL)
1348 return;
1349
6c80b18d
MT		 1350 netdev = adapter->netdev;
1351
6a581e93
DP		 1352 netxen_cancel_fw_work(adapter);
1353
96acb6eb
DP		 1354 unregister_netdev(netdev);
1355
e424fa9d
AKS		 1356 cancel_work_sync(&adapter->tx_timeout_task);
1357
7042cd8f 1358 netxen_nic_detach(adapter);
3d396eb1 1359
6a581e93
DP		 1360 nx_decr_dev_ref_cnt(adapter);
1361
439b454e 1362 if (adapter->portnum == 0)
83ac51fa 1363 netxen_free_dummy_dma(adapter);
96acb6eb 1364
6a581e93
DP		 1365 clear_bit(__NX_RESETTING, &adapter->state);
1366
97daee83 1367 netxen_teardown_intr(adapter);
3052246c 1368
97daee83 1369 netxen_cleanup_pci_map(adapter);
595e3fb8 1370
f7185c71
DP		 1371 netxen_release_firmware(adapter);
1372
595e3fb8 1373 pci_release_regions(pdev);
3052246c 1374 pci_disable_device(pdev);
595e3fb8
MT		 1375 pci_set_drvdata(pdev, NULL);
1376
6c80b18d 1377 free_netdev(netdev);
3d396eb1 1378}
22b5794b 1379static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1380{
0b72e659
DP		 1381 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1382 struct net_device *netdev = adapter->netdev;
22b5794b 1383 int retval;
0b72e659
DP		 1384
1385 netif_device_detach(netdev);
1386
6a581e93
DP		 1387 netxen_cancel_fw_work(adapter);
1388
0b72e659
DP		 1389 if (netif_running(netdev))
1390 netxen_nic_down(adapter, netdev);
1391
e424fa9d
AKS		 1392 cancel_work_sync(&adapter->tx_timeout_task);
1393
7042cd8f 1394 netxen_nic_detach(adapter);
0b72e659 1395
22b5794b
AKS		 1396 if (adapter->portnum == 0)
1397 netxen_free_dummy_dma(adapter);
1398
6a581e93
DP		 1399 nx_decr_dev_ref_cnt(adapter);
1400
1401 clear_bit(__NX_RESETTING, &adapter->state);
1402
22b5794b
AKS		 1403 retval = pci_save_state(pdev);
1404 if (retval)
1405 return retval;
0b72e659
DP		 1406
1407 if (netxen_nic_wol_supported(adapter)) {
1408 pci_enable_wake(pdev, PCI_D3cold, 1);
1409 pci_enable_wake(pdev, PCI_D3hot, 1);
1410 }
1411
1412 pci_disable_device(pdev);
0b72e659
DP		 1413
1414 return 0;
1415}
22b5794b
AKS		 1416static void netxen_nic_shutdown(struct pci_dev *pdev)
1417{
1418 if (__netxen_nic_shutdown(pdev))
1419 return;
1420}
1421#ifdef CONFIG_PM
1422static int
1423netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1424{
1425 int retval;
1426
1427 retval = __netxen_nic_shutdown(pdev);
1428 if (retval)
1429 return retval;
1430
1431 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1432 return 0;
1433}
0b72e659
DP		 1434
1435static int
1436netxen_nic_resume(struct pci_dev *pdev)
1437{
1438 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1439 struct net_device *netdev = adapter->netdev;
1440 int err;
1441
1442 pci_set_power_state(pdev, PCI_D0);
1443 pci_restore_state(pdev);
1444
1445 err = pci_enable_device(pdev);
1446 if (err)
1447 return err;
1448
1449 adapter->curr_window = 255;
1450
6a581e93 1451 err = netxen_start_firmware(adapter);
0b72e659
DP		 1452 if (err) {
1453 dev_err(&pdev->dev, "failed to start firmware\n");
1454 return err;
1455 }
1456
1457 if (netif_running(netdev)) {
1458 err = netxen_nic_attach(adapter);
1459 if (err)
6a581e93 1460 goto err_out;
0b72e659
DP		 1461
1462 err = netxen_nic_up(adapter, netdev);
1463 if (err)
6a581e93 1464 goto err_out_detach;
0b72e659
DP		 1465
1466 netif_device_attach(netdev);
d0725e4d
AKS		 1467
1468 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1469 }
1470
6a581e93
DP		 1471 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1472
1473err_out_detach:
1474 netxen_nic_detach(adapter);
1475err_out:
1476 nx_decr_dev_ref_cnt(adapter);
1477 return err;
0b72e659 1478}
01542cd1 1479#endif
0b72e659 1480
3d396eb1
AK		 1481static int netxen_nic_open(struct net_device *netdev)
1482{
4cf1653a 1483 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1484 int err = 0;
3d396eb1 1485
dcd56fdb
DP		 1486 if (adapter->driver_mismatch)
1487 return -EIO;
1488
7042cd8f
AKS		 1489 err = netxen_nic_attach(adapter);
1490 if (err)
1491 return err;
2956640d 1492
9f5bc7f1
DP		 1493 err = netxen_nic_up(adapter, netdev);
1494 if (err)
1495 goto err_out;
05aaa02d 1496
dcd56fdb 1497 netif_start_queue(netdev);
3d396eb1
AK		 1498
1499 return 0;
2956640d 1500
9f5bc7f1
DP		 1501err_out:
1502 netxen_nic_detach(adapter);
2956640d 1503 return err;
3d396eb1
AK		 1504}
1505
1506/*
1507 * netxen_nic_close - Disables a network interface entry point
1508 */
1509static int netxen_nic_close(struct net_device *netdev)
1510{
3176ff3e 1511 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1512
9f5bc7f1 1513 netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1514 return 0;
1515}
1516
1bcfd790
DP		 1517static void
1518netxen_tso_check(struct net_device *netdev,
1519 struct nx_host_tx_ring *tx_ring,
1520 struct cmd_desc_type0 *first_desc,
1521 struct sk_buff *skb)
cd1f8160 1522{
391587c3 1523 u8 opcode = TX_ETHER_PKT;
cdff1036 1524 __be16 protocol = skb->protocol;
028afe71 1525 u16 flags = 0, vid = 0;
1bcfd790 1526 u32 producer;
028afe71 1527 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1528 struct cmd_desc_type0 *hwdesc;
028afe71 1529 struct vlan_ethhdr *vh;
cdff1036 1530
09640e63 1531 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1532
1533 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1534 protocol = vh->h_vlan_encapsulated_proto;
1535 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1536
1537 } else if (vlan_tx_tag_present(skb)) {
1538
1539 flags = FLAGS_VLAN_OOB;
1540 vid = vlan_tx_tag_get(skb);
1541 netxen_set_tx_vlan_tci(first_desc, vid);
1542 vlan_oob = 1;
cdff1036 1543 }
cd1f8160 1544
391587c3
DP		 1545 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1546 skb_shinfo(skb)->gso_size > 0) {
1547
1bcfd790
DP		 1548 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1549
1550 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1551 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1552 if (vlan_oob) {
1553 first_desc->total_hdr_length += VLAN_HLEN;
1554 first_desc->tcp_hdr_offset = VLAN_HLEN;
1555 first_desc->ip_hdr_offset = VLAN_HLEN;
1556 /* Only in case of TSO on vlan device */
1557 flags |= FLAGS_VLAN_TAGGED;
1558 }
391587c3 1559
09640e63 1560 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1561 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1562 tso = 1;
cd1f8160
DP		 1563
1564 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1565 u8 l4proto;
1566
09640e63 1567 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1568 l4proto = ip_hdr(skb)->protocol;
1569
1570 if (l4proto == IPPROTO_TCP)
1571 opcode = TX_TCP_PKT;
1572 else if(l4proto == IPPROTO_UDP)
1573 opcode = TX_UDP_PKT;
09640e63 1574 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1575 l4proto = ipv6_hdr(skb)->nexthdr;
1576
1577 if (l4proto == IPPROTO_TCP)
1578 opcode = TX_TCPV6_PKT;
1579 else if(l4proto == IPPROTO_UDP)
1580 opcode = TX_UDPV6_PKT;
1581 }
cd1f8160 1582 }
028afe71
DP		 1583
1584 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1585 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1586 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1587
1588 if (!tso)
1589 return;
1590
1591 /* For LSO, we need to copy the MAC/IP/TCP headers into
1592 * the descriptor ring
1593 */
1594 producer = tx_ring->producer;
1595 copied = 0;
1596 offset = 2;
1597
028afe71
DP		 1598 if (vlan_oob) {
1599 /* Create a TSO vlan header template for firmware */
1600
1601 hwdesc = &tx_ring->desc_head[producer];
1602 tx_ring->cmd_buf_arr[producer].skb = NULL;
1603
1604 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1605 hdr_len + VLAN_HLEN);
1606
1607 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1608 skb_copy_from_linear_data(skb, vh, 12);
1609 vh->h_vlan_proto = htons(ETH_P_8021Q);
1610 vh->h_vlan_TCI = htons(vid);
1611 skb_copy_from_linear_data_offset(skb, 12,
1612 (char *)vh + 16, copy_len - 16);
1613
545eb370 1614 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1615 offset = 0;
1616
1617 producer = get_next_index(producer, tx_ring->num_desc);
1618 }
1619
1bcfd790
DP		 1620 while (copied < hdr_len) {
1621
1622 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1623 (hdr_len - copied));
1624
1625 hwdesc = &tx_ring->desc_head[producer];
1626 tx_ring->cmd_buf_arr[producer].skb = NULL;
1627
1628 skb_copy_from_linear_data_offset(skb, copied,
1629 (char *)hwdesc + offset, copy_len);
1630
1631 copied += copy_len;
1632 offset = 0;
1633
1634 producer = get_next_index(producer, tx_ring->num_desc);
1635 }
1636
1637 tx_ring->producer = producer;
1638 barrier();
cd1f8160
DP		 1639}
1640
ce644ed4
DP		 1641static int
1642netxen_map_tx_skb(struct pci_dev *pdev,
1643 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1644{
ce644ed4
DP		 1645 struct netxen_skb_frag *nf;
1646 struct skb_frag_struct *frag;
1647 int i, nr_frags;
1648 dma_addr_t map;
1649
1650 nr_frags = skb_shinfo(skb)->nr_frags;
1651 nf = &pbuf->frag_array[0];
1652
1653 map = pci_map_single(pdev, skb->data,
1654 skb_headlen(skb), PCI_DMA_TODEVICE);
1655 if (pci_dma_mapping_error(pdev, map))
1656 goto out_err;
6f703406 1657
ce644ed4
DP		 1658 nf->dma = map;
1659 nf->length = skb_headlen(skb);
1660
1661 for (i = 0; i < nr_frags; i++) {
1662 frag = &skb_shinfo(skb)->frags[i];
1663 nf = &pbuf->frag_array[i+1];
1664
1665 map = pci_map_page(pdev, frag->page, frag->page_offset,
1666 frag->size, PCI_DMA_TODEVICE);
1667 if (pci_dma_mapping_error(pdev, map))
1668 goto unwind;
1669
1670 nf->dma = map;
1671 nf->length = frag->size;
1672 }
1673
1674 return 0;
6f703406 1675
ce644ed4 1676unwind:
cf503e8f
DP		 1677 while (--i >= 0) {
1678 nf = &pbuf->frag_array[i+1];
ce644ed4 1679 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1680 }
ce644ed4
DP		 1681
1682 nf = &pbuf->frag_array[0];
1683 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1684
1685out_err:
1686 return -ENOMEM;
6f703406
DP		 1687}
1688
d32cc3d2
DP		 1689static inline void
1690netxen_clear_cmddesc(u64 *desc)
1691{
1bcfd790
DP		 1692 desc[0] = 0ULL;
1693 desc[2] = 0ULL;
d32cc3d2
DP		 1694}
1695
61357325 1696static netdev_tx_t
d32cc3d2 1697netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1698{
3176ff3e 1699 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1700 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1701 struct netxen_cmd_buffer *pbuf;
3d396eb1 1702 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1703 struct cmd_desc_type0 *hwdesc, *first_desc;
1704 struct pci_dev *pdev;
391587c3 1705 int i, k;
3d396eb1 1706
cb2107be 1707 u32 producer;
ce644ed4 1708 int frag_count, no_of_desc;
d877f1e3 1709 u32 num_txd = tx_ring->num_desc;
3d396eb1 1710
3d396eb1
AK		 1711 frag_count = skb_shinfo(skb)->nr_frags + 1;
1712
d877f1e3 1713 /* 4 fragments per cmd des */
3d396eb1 1714 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1715
cb2107be 1716 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
ba53e6b4 1717 netif_stop_queue(netdev);
ba53e6b4 1718 return NETDEV_TX_BUSY;
53a01e00 1719 }
3d396eb1 1720
cb2107be 1721 producer = tx_ring->producer;
ce644ed4 1722 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1723
1bcfd790 1724 pdev = adapter->pdev;
391587c3 1725
ce644ed4 1726 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1727 goto drop_packet;
391587c3 1728
3d396eb1 1729 pbuf->skb = skb;
3d396eb1 1730 pbuf->frag_count = frag_count;
6f703406 1731
1bcfd790
DP		 1732 first_desc = hwdesc = &tx_ring->desc_head[producer];
1733 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1734
ce644ed4
DP		 1735 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1736 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1737
ce644ed4 1738 for (i = 0; i < frag_count; i++) {
3d396eb1 1739
ce644ed4
DP		 1740 k = i % 4;
1741
1742 if ((k == 0) && (i > 0)) {
1743 /* move to next desc.*/
ba53e6b4 1744 producer = get_next_index(producer, num_txd);
d877f1e3 1745 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1746 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1747 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1748 }
3d396eb1 1749
ce644ed4 1750 buffrag = &pbuf->frag_array[i];
3d396eb1 1751
ce644ed4 1752 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1753 switch (k) {
1754 case 0:
ce644ed4 1755 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1756 break;
1757 case 1:
ce644ed4 1758 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1759 break;
1760 case 2:
ce644ed4 1761 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1762 break;
1763 case 3:
ce644ed4 1764 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1765 break;
1766 }
3d396eb1 1767 }
ce644ed4 1768
1bcfd790 1769 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1770
1bcfd790 1771 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1772
cb2107be 1773 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1774
1bcfd790 1775 adapter->stats.txbytes += skb->len;
ba53e6b4 1776 adapter->stats.xmitcalled++;
3d396eb1 1777
3d396eb1 1778 return NETDEV_TX_OK;
6f703406
DP		 1779
1780drop_packet:
1781 adapter->stats.txdropped++;
1782 dev_kfree_skb_any(skb);
1783 return NETDEV_TX_OK;
3d396eb1
AK		 1784}
1785
a97342f9
DP		 1786static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1787{
1788 struct net_device *netdev = adapter->netdev;
1789 uint32_t temp, temp_state, temp_val;
1790 int rv = 0;
1791
f98a9f69 1792 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1793
1794 temp_state = nx_get_temp_state(temp);
1795 temp_val = nx_get_temp_val(temp);
1796
1797 if (temp_state == NX_TEMP_PANIC) {
1798 printk(KERN_ALERT
1799 "%s: Device temperature %d degrees C exceeds"
1800 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1801 netdev->name, temp_val);
a97342f9
DP		 1802 rv = 1;
1803 } else if (temp_state == NX_TEMP_WARN) {
1804 if (adapter->temp == NX_TEMP_NORMAL) {
1805 printk(KERN_ALERT
1806 "%s: Device temperature %d degrees C "
1807 "exceeds operating range."
1808 " Immediate action needed.\n",
e4135c2d 1809 netdev->name, temp_val);
a97342f9
DP		 1810 }
1811 } else {
1812 if (adapter->temp == NX_TEMP_WARN) {
1813 printk(KERN_INFO
1814 "%s: Device temperature is now %d degrees C"
e4135c2d 1815 " in normal range.\n", netdev->name,
a97342f9
DP		 1816 temp_val);
1817 }
1818 }
1819 adapter->temp = temp_state;
1820 return rv;
1821}
1822
3bf26ce3 1823void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1824{
1825 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1826
1827 if (adapter->ahw.linkup && !linkup) {
1828 printk(KERN_INFO "%s: %s NIC Link is down\n",
1829 netxen_nic_driver_name, netdev->name);
1830 adapter->ahw.linkup = 0;
1831 if (netif_running(netdev)) {
1832 netif_carrier_off(netdev);
1833 netif_stop_queue(netdev);
1834 }
e424fa9d 1835 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1836 } else if (!adapter->ahw.linkup && linkup) {
1837 printk(KERN_INFO "%s: %s NIC Link is up\n",
1838 netxen_nic_driver_name, netdev->name);
1839 adapter->ahw.linkup = 1;
1840 if (netif_running(netdev)) {
1841 netif_carrier_on(netdev);
1842 netif_wake_queue(netdev);
1843 }
e424fa9d 1844 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1845 }
1846}
1847
3bf26ce3
DP		 1848static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1849{
1850 u32 val, port, linkup;
1851
1852 port = adapter->physical_port;
1853
1854 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1855 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1856 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1857 linkup = (val == XG_LINK_UP_P3);
1858 } else {
f98a9f69 1859 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1860 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1861 linkup = (val >> port) & 1;
1862 else {
1863 val = (val >> port*8) & 0xff;
1864 linkup = (val == XG_LINK_UP);
1865 }
1866 }
1867
1868 netxen_advert_link_change(adapter, linkup);
1869}
1870
3d396eb1
AK		 1871static void netxen_tx_timeout(struct net_device *netdev)
1872{
e424fa9d 1873 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1874
6a581e93
DP		 1875 if (test_bit(__NX_RESETTING, &adapter->state))
1876 return;
1877
f17443f4 1878 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1879 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1880}
1881
74c520da 1882static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 1883{
4790654c 1884 struct netxen_adapter *adapter =
3176ff3e 1885 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1886
b2af9cb0
DP		 1887 if (!netif_running(adapter->netdev))
1888 return;
1889
74c520da 1890 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 1891 return;
1892
74c520da
AKS		 1893 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1894 goto request_reset;
1895
1896 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1897 /* try to scrub interrupt */
1898 netxen_napi_disable(adapter);
ba53e6b4 1899
74c520da 1900 adapter->netdev->trans_start = jiffies;
ba53e6b4 1901
74c520da
AKS		 1902 netxen_napi_enable(adapter);
1903
1904 netif_wake_queue(adapter->netdev);
1905
a598ae17 1906 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1907
1908 } else {
a598ae17 1909 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1910 if (!netxen_nic_reset_context(adapter)) {
1911 adapter->netdev->trans_start = jiffies;
a598ae17 1912 return;
74c520da
AKS		 1913 }
1914
1915 /* context reset failed, fall through for fw reset */
1916 }
1917
1918request_reset:
1919 adapter->need_fw_reset = 1;
3d396eb1
AK		 1920}
1921
a97342f9
DP		 1922struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1923{
1924 struct netxen_adapter *adapter = netdev_priv(netdev);
1925 struct net_device_stats *stats = &adapter->net_stats;
1926
1927 memset(stats, 0, sizeof(*stats));
1928
1bb482f8 1929 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1930 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1931 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1932 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1933 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1934 stats->tx_dropped = adapter->stats.txdropped;
1935
1936 return stats;
1937}
1938
e4c93c81 1939static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1940{
d8b100c5
DP		 1941 struct nx_host_sds_ring *sds_ring = data;
1942 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1943 u32 status = 0;
1944
195c5f98 1945 status = readl(adapter->isr_int_vec);
d71e1be8 1946
195c5f98 1947 if (!(status & adapter->int_vec_bit))
05aaa02d 1948 return IRQ_NONE;
e01872af 1949
195c5f98 1950 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 1951 /* check interrupt state machine, to be sure */
195c5f98 1952 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 1953 if (!ISR_LEGACY_INT_TRIGGERED(status))
1954 return IRQ_NONE;
1955
092bc571
DP		 1956 } else {
1957 unsigned long our_int = 0;
d71e1be8 1958
195c5f98 1959 our_int = readl(adapter->crb_int_state_reg);
092bc571 1960
d71e1be8 1961 /* not our interrupt */
092bc571 1962 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1963 return IRQ_NONE;
1964
092bc571 1965 /* claim interrupt */
195c5f98 1966 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 1967
195c5f98 1968 /* clear interrupt */
d8b100c5 1969 netxen_nic_disable_int(sds_ring);
195c5f98 1970 }
092bc571 1971
195c5f98 1972 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1973 /* read twice to ensure write is flushed */
195c5f98
AKS		 1974 readl(adapter->isr_int_vec);
1975 readl(adapter->isr_int_vec);
092bc571 1976
d8b100c5 1977 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 1978
1979 return IRQ_HANDLED;
1980}
1981
e4c93c81 1982static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 1983{
d8b100c5
DP		 1984 struct nx_host_sds_ring *sds_ring = data;
1985 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 1986
092bc571 1987 /* clear interrupt */
195c5f98 1988 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1989
d8b100c5 1990 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 1991 return IRQ_HANDLED;
1992}
1993
b3df68f8
DP		 1994static irqreturn_t netxen_msix_intr(int irq, void *data)
1995{
d8b100c5 1996 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 1997
d8b100c5 1998 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 1999 return IRQ_HANDLED;
2000}
2001
bea3348e 2002static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2003{
d8b100c5
DP		 2004 struct nx_host_sds_ring *sds_ring =
2005 container_of(napi, struct nx_host_sds_ring, napi);
2006
2007 struct netxen_adapter *adapter = sds_ring->adapter;
2008
05aaa02d 2009 int tx_complete;
bea3348e 2010 int work_done;
3d396eb1 2011
05aaa02d 2012 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2013
d8b100c5 2014 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2015
05aaa02d 2016 if ((work_done < budget) && tx_complete) {
d8b100c5 2017 napi_complete(&sds_ring->napi);
b2af9cb0
DP		 2018 if (netif_running(adapter->netdev))
2019 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2020 }
2021
bea3348e 2022 return work_done;
3d396eb1
AK		 2023}
2024
2025#ifdef CONFIG_NET_POLL_CONTROLLER
2026static void netxen_nic_poll_controller(struct net_device *netdev)
2027{
3176ff3e 2028 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 2029 disable_irq(adapter->irq);
1494a814 2030 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 2031 enable_irq(adapter->irq);
2032}
2033#endif
3d396eb1 2034
6a581e93
DP		 2035static int
2036nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2037{
2038 int count;
2039 if (netxen_api_lock(adapter))
2040 return -EIO;
2041
2042 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2043
2044 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2045
2046 netxen_api_unlock(adapter);
2047 return count;
2048}
2049
2050static int
2051nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2052{
2053 int count;
2054 if (netxen_api_lock(adapter))
2055 return -EIO;
2056
2057 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2058 WARN_ON(count == 0);
2059
2060 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2061
2062 if (count == 0)
2063 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2064
2065 netxen_api_unlock(adapter);
2066 return count;
2067}
2068
74c520da
AKS		 2069static void
2070nx_dev_request_reset(struct netxen_adapter *adapter)
2071{
2072 u32 state;
2073
2074 if (netxen_api_lock(adapter))
2075 return;
2076
2077 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2078
2079 if (state != NX_DEV_INITALIZING)
2080 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2081
2082 netxen_api_unlock(adapter);
2083}
2084
6a581e93
DP		 2085static int
2086netxen_can_start_firmware(struct netxen_adapter *adapter)
2087{
2088 int count;
2089 int can_start = 0;
2090
2091 if (netxen_api_lock(adapter))
2092 return 0;
2093
2094 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2095
2096 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2097 count = 0;
2098
2099 if (count == 0) {
2100 can_start = 1;
2101 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2102 }
2103
2104 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2105
2106 netxen_api_unlock(adapter);
2107
2108 return can_start;
2109}
2110
2111static void
2112netxen_schedule_work(struct netxen_adapter *adapter,
2113 work_func_t func, int delay)
2114{
2115 INIT_DELAYED_WORK(&adapter->fw_work, func);
2116 schedule_delayed_work(&adapter->fw_work, delay);
2117}
2118
2119static void
2120netxen_cancel_fw_work(struct netxen_adapter *adapter)
2121{
2122 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2123 msleep(10);
2124
2125 cancel_delayed_work_sync(&adapter->fw_work);
2126}
2127
2128static void
2129netxen_attach_work(struct work_struct *work)
2130{
2131 struct netxen_adapter *adapter = container_of(work,
2132 struct netxen_adapter, fw_work.work);
2133 struct net_device *netdev = adapter->netdev;
2134 int err = 0;
2135
2136 if (netif_running(netdev)) {
2137 err = netxen_nic_attach(adapter);
2138 if (err)
2139 goto done;
2140
2141 err = netxen_nic_up(adapter, netdev);
2142 if (err) {
2143 netxen_nic_detach(adapter);
2144 goto done;
2145 }
2146
d0725e4d 2147 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2148 }
2149
2150 netif_device_attach(netdev);
2151
2152done:
2153 adapter->fw_fail_cnt = 0;
2154 clear_bit(__NX_RESETTING, &adapter->state);
2155 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2156}
2157
2158static void
2159netxen_fwinit_work(struct work_struct *work)
2160{
2161 struct netxen_adapter *adapter = container_of(work,
2162 struct netxen_adapter, fw_work.work);
2163 int dev_state;
2164
2165 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2166
2167 switch (dev_state) {
2168 case NX_DEV_COLD:
2169 case NX_DEV_READY:
74c520da
AKS		 2170 if (!netxen_start_firmware(adapter)) {
2171 netxen_schedule_work(adapter, netxen_attach_work, 0);
2172 return;
2173 }
2174 break;
6a581e93
DP		 2175
2176 case NX_DEV_INITALIZING:
2177 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2178 netxen_schedule_work(adapter,
2179 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2180 return;
2181 }
2182 break;
2183
2184 case NX_DEV_FAILED:
2185 default:
2186 break;
2187 }
2188
2189 nx_incr_dev_ref_cnt(adapter);
2190 clear_bit(__NX_RESETTING, &adapter->state);
2191}
2192
2193static void
2194netxen_detach_work(struct work_struct *work)
2195{
2196 struct netxen_adapter *adapter = container_of(work,
2197 struct netxen_adapter, fw_work.work);
2198 struct net_device *netdev = adapter->netdev;
2199 int ref_cnt, delay;
2200 u32 status;
2201
2202 netif_device_detach(netdev);
2203
2204 if (netif_running(netdev))
2205 netxen_nic_down(adapter, netdev);
2206
2207 netxen_nic_detach(adapter);
2208
2209 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2210
2211 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2212
2213 if (status & NX_RCODE_FATAL_ERROR)
2214 return;
2215
2216 if (adapter->temp == NX_TEMP_PANIC)
2217 return;
2218
2219 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2220
2221 adapter->fw_wait_cnt = 0;
2222 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2223}
2224
2225static int
2226netxen_check_health(struct netxen_adapter *adapter)
2227{
2228 u32 state, heartbit;
2229 struct net_device *netdev = adapter->netdev;
2230
2231 if (netxen_nic_check_temp(adapter))
2232 goto detach;
2233
74c520da
AKS		 2234 if (adapter->need_fw_reset) {
2235 nx_dev_request_reset(adapter);
2236 goto detach;
2237 }
2238
6a581e93
DP		 2239 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2240 if (state == NX_DEV_NEED_RESET)
2241 goto detach;
2242
2243 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2244 return 0;
2245
2246 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2247 if (heartbit != adapter->heartbit) {
2248 adapter->heartbit = heartbit;
2249 adapter->fw_fail_cnt = 0;
2250 return 0;
2251 }
2252
2253 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2254 return 0;
2255
2256 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2257
2258 dev_info(&netdev->dev, "firmware hang detected\n");
2259
2260detach:
2261 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2262 netxen_schedule_work(adapter, netxen_detach_work, 0);
2263 return 1;
2264}
2265
2266static void
2267netxen_fw_poll_work(struct work_struct *work)
2268{
2269 struct netxen_adapter *adapter = container_of(work,
2270 struct netxen_adapter, fw_work.work);
2271
2272 if (test_bit(__NX_RESETTING, &adapter->state))
2273 goto reschedule;
2274
2275 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2276 if (!adapter->has_link_events) {
2277
2278 netxen_nic_handle_phy_intr(adapter);
2279
2280 if (adapter->link_changed)
2281 netxen_nic_set_link_parameters(adapter);
2282 }
2283 }
2284
2285 if (netxen_check_health(adapter))
2286 return;
2287
2288reschedule:
2289 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2290}
2291
fa3ce355
NK		 2292static ssize_t
2293netxen_store_bridged_mode(struct device *dev,
2294 struct device_attribute *attr, const char *buf, size_t len)
2295{
2296 struct net_device *net = to_net_dev(dev);
2297 struct netxen_adapter *adapter = netdev_priv(net);
2298 unsigned long new;
2299 int ret = -EINVAL;
2300
2301 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2302 goto err_out;
2303
2304 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2305 goto err_out;
2306
2307 if (strict_strtoul(buf, 2, &new))
2308 goto err_out;
2309
2310 if (!netxen_config_bridged_mode(adapter, !!new))
2311 ret = len;
2312
2313err_out:
2314 return ret;
2315}
2316
2317static ssize_t
2318netxen_show_bridged_mode(struct device *dev,
2319 struct device_attribute *attr, char *buf)
2320{
2321 struct net_device *net = to_net_dev(dev);
2322 struct netxen_adapter *adapter;
2323 int bridged_mode = 0;
2324
2325 adapter = netdev_priv(net);
2326
2327 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2328 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2329
2330 return sprintf(buf, "%d\n", bridged_mode);
2331}
2332
2333static struct device_attribute dev_attr_bridged_mode = {
2334 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2335 .show = netxen_show_bridged_mode,
2336 .store = netxen_store_bridged_mode,
2337};
2338
2339static void
2340netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2341{
2342 struct net_device *netdev = adapter->netdev;
2343 struct device *dev = &netdev->dev;
2344
2345 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2346 /* bridged_mode control */
2347 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2348 dev_warn(&netdev->dev,
2349 "failed to create bridged_mode sysfs entry\n");
2350 }
2351 }
2352}
2353
2354static void
2355netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2356{
2357 struct net_device *netdev = adapter->netdev;
2358 struct device *dev = &netdev->dev;
2359
2360 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2361 device_remove_file(dev, &dev_attr_bridged_mode);
2362}
2363
044824d9
DP		 2364#ifdef CONFIG_INET
2365
6598b169
DP		 2366#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2367
2368static int
2369netxen_destip_supported(struct netxen_adapter *adapter)
2370{
2371 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2372 return 0;
2373
2374 if (adapter->ahw.cut_through)
2375 return 0;
2376
2377 return 1;
2378}
2379
d0725e4d
AKS		 2380static void
2381netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2382{
2383 struct in_device *indev;
2384 struct netxen_adapter *adapter = netdev_priv(dev);
2385
3db76755 2386 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2387 return;
2388
2389 indev = in_dev_get(dev);
2390 if (!indev)
2391 return;
2392
2393 for_ifa(indev) {
2394 switch (event) {
2395 case NETDEV_UP:
2396 netxen_config_ipaddr(adapter,
2397 ifa->ifa_address, NX_IP_UP);
2398 break;
2399 case NETDEV_DOWN:
2400 netxen_config_ipaddr(adapter,
2401 ifa->ifa_address, NX_IP_DOWN);
2402 break;
2403 default:
2404 break;
2405 }
2406 } endfor_ifa(indev);
2407
2408 in_dev_put(indev);
2409 return;
2410}
2411
6598b169
DP		 2412static int netxen_netdev_event(struct notifier_block *this,
2413 unsigned long event, void *ptr)
2414{
2415 struct netxen_adapter *adapter;
2416 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2417
2418recheck:
2419 if (dev == NULL)
2420 goto done;
2421
2422 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2423 dev = vlan_dev_real_dev(dev);
2424 goto recheck;
2425 }
2426
2427 if (!is_netxen_netdev(dev))
2428 goto done;
2429
2430 adapter = netdev_priv(dev);
2431
d0725e4d 2432 if (!adapter)
6598b169
DP		 2433 goto done;
2434
2435 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2436 goto done;
2437
d0725e4d 2438 netxen_config_indev_addr(dev, event);
6598b169
DP		 2439done:
2440 return NOTIFY_DONE;
2441}
2442
2443static int
2444netxen_inetaddr_event(struct notifier_block *this,
2445 unsigned long event, void *ptr)
2446{
2447 struct netxen_adapter *adapter;
2448 struct net_device *dev;
2449
2450 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2451
2452 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2453
2454recheck:
2455 if (dev == NULL || !netif_running(dev))
2456 goto done;
2457
2458 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2459 dev = vlan_dev_real_dev(dev);
2460 goto recheck;
2461 }
2462
2463 if (!is_netxen_netdev(dev))
2464 goto done;
2465
2466 adapter = netdev_priv(dev);
2467
2468 if (!adapter || !netxen_destip_supported(adapter))
2469 goto done;
2470
2471 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2472 goto done;
2473
2474 switch (event) {
2475 case NETDEV_UP:
2476 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2477 break;
2478 case NETDEV_DOWN:
2479 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2480 break;
2481 default:
2482 break;
2483 }
2484
2485done:
2486 return NOTIFY_DONE;
2487}
2488
2489static struct notifier_block netxen_netdev_cb = {
2490 .notifier_call = netxen_netdev_event,
2491};
2492
2493static struct notifier_block netxen_inetaddr_cb = {
2494 .notifier_call = netxen_inetaddr_event,
2495};
9feae56c
RD		 2496#else
2497static void
2498netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2499{ }
044824d9 2500#endif
6598b169 2501
3d396eb1
AK		 2502static struct pci_driver netxen_driver = {
2503 .name = netxen_nic_driver_name,
2504 .id_table = netxen_pci_tbl,
2505 .probe = netxen_nic_probe,
0b72e659 2506 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2507#ifdef CONFIG_PM
0b72e659 2508 .suspend = netxen_nic_suspend,
22b5794b 2509 .resume = netxen_nic_resume,
01542cd1 2510#endif
22b5794b 2511 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2512};
2513
3d396eb1
AK		 2514static int __init netxen_init_module(void)
2515{
ff4fbd43
DP		 2516 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2517
044824d9 2518#ifdef CONFIG_INET
6598b169
DP		 2519 register_netdevice_notifier(&netxen_netdev_cb);
2520 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2521#endif
6598b169 2522
184231bd 2523 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2524}
2525
2526module_init(netxen_init_module);
2527
2528static void __exit netxen_exit_module(void)
2529{
3d396eb1 2530 pci_unregister_driver(&netxen_driver);
6598b169 2531
044824d9 2532#ifdef CONFIG_INET
6598b169
DP		 2533 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2534 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2535#endif
3d396eb1
AK		 2536}
2537
2538module_exit(netxen_exit_module);
Ubuntu Artful kernel mirror