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netxen: remove PCI IDs of CNA device
[net-next-2.6.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>
0531d7b8 37#include <linux/sysfs.h>
1494a814 38
c25c0b9b 39MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
3d396eb1
AK		 40MODULE_LICENSE("GPL");
41MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97
DP		 42MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
43MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
44MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
45MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 46
ceded32f 47char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 48static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 49 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 50
2956640d
DP		 51static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52
53/* Default to restricted 1G auto-neg mode */
54static int wol_port_mode = 5;
55
56static int use_msi = 1;
57
58static int use_msi_x = 1;
59
caa2dd53
NK		 60static unsigned long auto_fw_reset = AUTO_FW_RESET_ENABLED;
61
3d396eb1 62static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 63 const struct pci_device_id *ent);
3d396eb1
AK		 64static void __devexit netxen_nic_remove(struct pci_dev *pdev);
65static int netxen_nic_open(struct net_device *netdev);
66static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 67static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
68 struct net_device *);
3d396eb1 69static void netxen_tx_timeout(struct net_device *netdev);
74c520da 70static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 71static void netxen_fw_poll_work(struct work_struct *work);
72static void netxen_schedule_work(struct netxen_adapter *adapter,
73 work_func_t func, int delay);
74static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 75static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 76#ifdef CONFIG_NET_POLL_CONTROLLER
77static void netxen_nic_poll_controller(struct net_device *netdev);
78#endif
fa3ce355
NK		 79
80static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
81static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 82static void netxen_create_diag_entries(struct netxen_adapter *adapter);
83static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 84
6a581e93
DP		 85static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
86static int netxen_can_start_firmware(struct netxen_adapter *adapter);
87
1494a814 88static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 89static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 90static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 91
d0725e4d
AKS		 92static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
93
3d396eb1 94/* PCI Device ID Table */
70081ac5 95#define ENTRY(device) \
040dec3b 96 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 97 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
98
3d396eb1 99static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 100 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
101 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
102 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
103 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
104 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
105 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
106 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
107 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 108 {0,}
109};
110
111MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
112
7830b22c
DP		 113static uint32_t crb_cmd_producer[4] = {
114 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
115 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
116};
117
c9fc891f 118void
3ce06a32 119netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 120 struct nx_host_tx_ring *tx_ring)
3176ff3e 121{
195c5f98 122 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
cb2107be
DP		 123
124 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
125 netif_stop_queue(adapter->netdev);
126 smp_mb();
127 }
3176ff3e
MT		 128}
129
7830b22c
DP		 130static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133};
134
3ce06a32
DP		 135static inline void
136netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 137 struct nx_host_tx_ring *tx_ring)
3176ff3e 138{
195c5f98 139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 140}
141
2956640d 142static uint32_t msi_tgt_status[8] = {
443be796 143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 147};
148
2956640d
DP		 149static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150
d8b100c5 151static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 152{
d8b100c5
DP		 153 struct netxen_adapter *adapter = sds_ring->adapter;
154
195c5f98 155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 156}
157
d8b100c5 158static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 159{
d8b100c5
DP		 160 struct netxen_adapter *adapter = sds_ring->adapter;
161
195c5f98 162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 163
092bc571 164 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 166}
167
71dcddbd
DP		 168static int
169netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170{
171 int size = sizeof(struct nx_host_sds_ring) * count;
172
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174
175 return (recv_ctx->sds_rings == NULL);
176}
177
d8b100c5 178static void
71dcddbd
DP		 179netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180{
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
232e7d68
DP		 183
184 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 185}
186
187static int
d8b100c5
DP		 188netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
189{
190 int ring;
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193
71dcddbd 194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 195 return -ENOMEM;
71dcddbd 196
d8b100c5
DP		 197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
201 }
71dcddbd
DP		 202
203 return 0;
d8b100c5
DP		 204}
205
232e7d68
DP		 206static void
207netxen_napi_del(struct netxen_adapter *adapter)
208{
209 int ring;
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
216 }
217
218 netxen_free_sds_rings(&adapter->recv_ctx);
219}
220
d8b100c5
DP		 221static void
222netxen_napi_enable(struct netxen_adapter *adapter)
223{
224 int ring;
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
232 }
233}
234
235static void
236netxen_napi_disable(struct netxen_adapter *adapter)
237{
238 int ring;
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 244 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
d8b100c5
DP		 247 }
248}
249
50c643e7 250static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 251{
252 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 253 uint64_t mask, cmask;
254
255 adapter->pci_using_dac = 0;
2956640d 256
6afd142f 257 mask = DMA_BIT_MASK(32);
6afd142f 258 cmask = DMA_BIT_MASK(32);
1f434f63 259
50c643e7 260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 261#ifndef CONFIG_IA64
6afd142f 262 mask = DMA_BIT_MASK(35);
1f434f63 263#endif
50c643e7
DP		 264 } else {
265 mask = DMA_BIT_MASK(39);
266 cmask = mask;
267 }
268
2956640d 269 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 271 adapter->pci_using_dac = 1;
272 return 0;
273 }
2956640d 274
1f434f63
DP		 275 return -EIO;
276}
277
278/* Update addressable range if firmware supports it */
279static int
280nx_update_dma_mask(struct netxen_adapter *adapter)
281{
282 int change, shift, err;
50c643e7 283 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 284 struct pci_dev *pdev = adapter->pdev;
285
286 change = 0;
287
f98a9f69 288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 289 if (shift > 32)
1f434f63
DP		 290 return 0;
291
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 change = 1;
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
295 change = 1;
296
297 if (change) {
298 old_mask = pdev->dma_mask;
50c643e7
DP		 299 old_cmask = pdev->dev.coherent_dma_mask;
300
f60f7856 301 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 302
303 err = pci_set_dma_mask(pdev, mask);
304 if (err)
50c643e7
DP		 305 goto err_out;
306
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308
309 err = pci_set_consistent_dma_mask(pdev, mask);
310 if (err)
311 goto err_out;
312 }
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 314 }
315
2956640d 316 return 0;
50c643e7
DP		 317
318err_out:
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
321 return err;
2956640d
DP		 322}
323
2956640d
DP		 324static int
325netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
326{
27c915a4 327 u32 val, timeout;
2956640d
DP		 328
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
f98a9f69 331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 332
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
334 return 0;
2956640d
DP		 335
336 /* PCI bus master workaround */
f98a9f69 337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 338 if (!(first_boot & 0x4)) {
339 first_boot |= 0x4;
f98a9f69
DP		 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
341 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 342 }
343
344 /* This is the first boot after power up */
f98a9f69 345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
f98a9f69 348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 349 return -EIO;
2956640d
DP		 350 }
351
27c915a4 352 /* Start P2 boot loader */
f98a9f69
DP		 353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 355 timeout = 0;
356 do {
357 msleep(1);
f98a9f69 358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 359
360 if (++timeout > 5000)
361 return -EIO;
362
363 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 364 }
27c915a4 365 return 0;
2956640d
DP		 366}
367
368static void netxen_set_port_mode(struct netxen_adapter *adapter)
369{
370 u32 val, data;
371
1e2d0059 372 val = adapter->ahw.board_type;
2956640d
DP		 373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
f98a9f69 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 387 } else {
388 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 390 }
391
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 }
f98a9f69 398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 399 }
400}
401
2956640d
DP		 402static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
403{
404 u32 control;
405 int pos;
406
407 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
408 if (pos) {
409 pci_read_config_dword(pdev, pos, &control);
410 if (enable)
411 control |= PCI_MSIX_FLAGS_ENABLE;
412 else
413 control = 0;
414 pci_write_config_dword(pdev, pos, control);
415 }
416}
417
be339aee 418static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 419{
420 int i;
421
be339aee 422 for (i = 0; i < count; i++)
2956640d
DP		 423 adapter->msix_entries[i].entry = i;
424}
425
9dc28efe
DP		 426static int
427netxen_read_mac_addr(struct netxen_adapter *adapter)
428{
429 int i;
430 unsigned char *p;
431 __le64 mac_addr;
9dc28efe
DP		 432 struct net_device *netdev = adapter->netdev;
433 struct pci_dev *pdev = adapter->pdev;
434
9dc28efe
DP		 435 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
436 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
437 return -EIO;
438 } else {
439 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
440 return -EIO;
441 }
442
443 p = (unsigned char *)&mac_addr;
444 for (i = 0; i < 6; i++)
445 netdev->dev_addr[i] = *(p + 5 - i);
446
447 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
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
3d0a3cc9
DP		 457int netxen_nic_set_mac(struct net_device *netdev, void *p)
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
470 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
471 adapter->macaddr_set(adapter, addr->sa_data);
472
473 if (netif_running(netdev)) {
474 netif_device_attach(netdev);
475 netxen_napi_enable(adapter);
476 }
477 return 0;
478}
479
1abd266f
SH		 480static void netxen_set_multicast_list(struct net_device *dev)
481{
482 struct netxen_adapter *adapter = netdev_priv(dev);
483
3d0a3cc9 484 adapter->set_multi(dev);
1abd266f
SH		 485}
486
487static const struct net_device_ops netxen_netdev_ops = {
488 .ndo_open = netxen_nic_open,
489 .ndo_stop = netxen_nic_close,
490 .ndo_start_xmit = netxen_nic_xmit_frame,
491 .ndo_get_stats = netxen_nic_get_stats,
492 .ndo_validate_addr = eth_validate_addr,
493 .ndo_set_multicast_list = netxen_set_multicast_list,
494 .ndo_set_mac_address = netxen_nic_set_mac,
495 .ndo_change_mtu = netxen_nic_change_mtu,
496 .ndo_tx_timeout = netxen_tx_timeout,
497#ifdef CONFIG_NET_POLL_CONTROLLER
498 .ndo_poll_controller = netxen_nic_poll_controller,
499#endif
500};
501
97daee83
DP		 502static void
503netxen_setup_intr(struct netxen_adapter *adapter)
504{
505 struct netxen_legacy_intr_set *legacy_intrp;
506 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 507 int err, num_msix;
508
509 if (adapter->rss_supported) {
510 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
511 MSIX_ENTRIES_PER_ADAPTER : 2;
512 } else
513 num_msix = 1;
514
515 adapter->max_sds_rings = 1;
97daee83
DP		 516
517 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 518
519 if (adapter->ahw.revision_id >= NX_P3_B0)
520 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
521 else
522 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 523
524 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
525 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
526 legacy_intrp->tgt_status_reg);
527 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
528 legacy_intrp->tgt_mask_reg);
529 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->pci_int_reg);
531 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
532
533 if (adapter->ahw.revision_id >= NX_P3_B1)
534 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
535 ISR_INT_STATE_REG);
536 else
537 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
538 CRB_INT_VECTOR);
97daee83
DP		 539
540 netxen_set_msix_bit(pdev, 0);
541
542 if (adapter->msix_supported) {
543
be339aee
DP		 544 netxen_init_msix_entries(adapter, num_msix);
545 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
546 if (err == 0) {
547 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
548 netxen_set_msix_bit(pdev, 1);
97daee83 549
be339aee
DP		 550 if (adapter->rss_supported)
551 adapter->max_sds_rings = num_msix;
97daee83 552
be339aee
DP		 553 dev_info(&pdev->dev, "using msi-x interrupts\n");
554 return;
555 }
556
557 if (err > 0)
558 pci_disable_msix(pdev);
559
560 /* fall through for msi */
97daee83 561 }
be339aee
DP		 562
563 if (use_msi && !pci_enable_msi(pdev)) {
564 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 565 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
566 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 567 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 568 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 569 return;
570 }
571
572 dev_info(&pdev->dev, "using legacy interrupts\n");
573 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 574}
575
576static void
577netxen_teardown_intr(struct netxen_adapter *adapter)
578{
579 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
580 pci_disable_msix(adapter->pdev);
581 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
582 pci_disable_msi(adapter->pdev);
583}
584
585static void
586netxen_cleanup_pci_map(struct netxen_adapter *adapter)
587{
588 if (adapter->ahw.db_base != NULL)
589 iounmap(adapter->ahw.db_base);
590 if (adapter->ahw.pci_base0 != NULL)
591 iounmap(adapter->ahw.pci_base0);
592 if (adapter->ahw.pci_base1 != NULL)
593 iounmap(adapter->ahw.pci_base1);
594 if (adapter->ahw.pci_base2 != NULL)
595 iounmap(adapter->ahw.pci_base2);
596}
597
598static int
599netxen_setup_pci_map(struct netxen_adapter *adapter)
600{
601 void __iomem *mem_ptr0 = NULL;
602 void __iomem *mem_ptr1 = NULL;
603 void __iomem *mem_ptr2 = NULL;
604 void __iomem *db_ptr = NULL;
605
71fb62fb
DP		 606 resource_size_t mem_base, db_base;
607 unsigned long mem_len, db_len = 0, pci_len0 = 0;
97daee83
DP		 608
609 struct pci_dev *pdev = adapter->pdev;
610 int pci_func = adapter->ahw.pci_func;
611
612 int err = 0;
613
614 /*
615 * Set the CRB window to invalid. If any register in window 0 is
616 * accessed it should set the window to 0 and then reset it to 1.
617 */
907fa120 618 adapter->ahw.crb_win = -1;
47abe356 619 adapter->ahw.ocm_win = -1;
97daee83
DP		 620
621 /* remap phys address */
622 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
623 mem_len = pci_resource_len(pdev, 0);
97daee83 624
97daee83
DP		 625 /* 128 Meg of memory */
626 if (mem_len == NETXEN_PCI_128MB_SIZE) {
627 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
628 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
629 SECOND_PAGE_GROUP_SIZE);
630 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
631 THIRD_PAGE_GROUP_SIZE);
47abe356 632 pci_len0 = FIRST_PAGE_GROUP_SIZE;
97daee83
DP		 633 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
634 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
635 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
636 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83 637 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83
DP		 638
639 mem_ptr0 = pci_ioremap_bar(pdev, 0);
640 if (mem_ptr0 == NULL) {
641 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
642 return -EIO;
643 }
644 pci_len0 = mem_len;
97daee83
DP		 645 } else {
646 return -EIO;
647 }
648
195c5f98
AKS		 649 netxen_setup_hwops(adapter);
650
97daee83
DP		 651 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
652
653 adapter->ahw.pci_base0 = mem_ptr0;
654 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 655 adapter->ahw.pci_base1 = mem_ptr1;
656 adapter->ahw.pci_base2 = mem_ptr2;
657
6abb4b83
AKS		 658 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
659 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
660 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
661
662 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 663 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
664 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
665 }
666
97daee83
DP		 667 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
668 goto skip_doorbell;
669
670 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
671 db_len = pci_resource_len(pdev, 4);
672
673 if (db_len == 0) {
674 printk(KERN_ERR "%s: doorbell is disabled\n",
675 netxen_nic_driver_name);
676 err = -EIO;
677 goto err_out;
678 }
679
680 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
681 if (!db_ptr) {
682 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
683 netxen_nic_driver_name);
684 err = -EIO;
685 goto err_out;
686 }
687
688skip_doorbell:
689 adapter->ahw.db_base = db_ptr;
690 adapter->ahw.db_len = db_len;
691 return 0;
692
693err_out:
694 netxen_cleanup_pci_map(adapter);
695 return err;
696}
697
2b9e62ee
DP		 698static void
699netxen_check_options(struct netxen_adapter *adapter)
700{
701 u32 fw_major, fw_minor, fw_build;
702 char brd_name[NETXEN_MAX_SHORT_NAME];
703 char serial_num[32];
704 int i, offset, val;
705 int *ptr32;
706 struct pci_dev *pdev = adapter->pdev;
707
708 adapter->driver_mismatch = 0;
709
710 ptr32 = (int *)&serial_num;
711 offset = NX_FW_SERIAL_NUM_OFFSET;
712 for (i = 0; i < 8; i++) {
713 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
714 dev_err(&pdev->dev, "error reading board info\n");
715 adapter->driver_mismatch = 1;
716 return;
717 }
718 ptr32[i] = cpu_to_le32(val);
719 offset += sizeof(u32);
720 }
721
722 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
723 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
724 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
725
726 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
727
728 if (adapter->portnum == 0) {
729 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
730
c25c0b9b
DP		 731 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
732 module_name(THIS_MODULE),
2b9e62ee
DP		 733 brd_name, serial_num, adapter->ahw.revision_id);
734 }
735
736 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
737 adapter->driver_mismatch = 1;
738 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
739 fw_major, fw_minor, fw_build);
740 return;
741 }
742
743 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
744 i = NXRD32(adapter, NETXEN_SRE_MISC);
745 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
746 }
747
748 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
749 fw_major, fw_minor, fw_build,
750 adapter->ahw.cut_through ? "cut-through" : "legacy");
751
752 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
753 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
754
755 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
756
757 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
758 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
759 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
760 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
761 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
762 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
763 }
764
765 adapter->msix_supported = 0;
766 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
767 adapter->msix_supported = !!use_msi_x;
768 adapter->rss_supported = !!use_msi_x;
769 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
770 switch (adapter->ahw.board_type) {
771 case NETXEN_BRDTYPE_P2_SB31_10G:
772 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
773 adapter->msix_supported = !!use_msi_x;
774 adapter->rss_supported = !!use_msi_x;
775 break;
776 default:
777 break;
778 }
779 }
780
781 adapter->num_txd = MAX_CMD_DESCRIPTORS;
782
783 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
784 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
785 adapter->max_rds_rings = 3;
786 } else {
787 adapter->num_lro_rxd = 0;
788 adapter->max_rds_rings = 2;
789 }
790}
791
ba599d4f 792static int
6a581e93 793netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 794{
795 int val, err, first_boot;
796 struct pci_dev *pdev = adapter->pdev;
797
2b9e62ee
DP		 798 /* required for NX2031 dummy dma */
799 err = nx_set_dma_mask(adapter);
800 if (err)
801 return err;
802
6a581e93 803 if (!netxen_can_start_firmware(adapter))
96f2ebd2 804 goto wait_init;
0b72e659 805
f98a9f69 806 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 807
808 err = netxen_check_hw_init(adapter, first_boot);
809 if (err) {
810 dev_err(&pdev->dev, "error in init HW init sequence\n");
811 return err;
812 }
813
6a581e93 814 netxen_request_firmware(adapter);
f7185c71 815
67c38fc6 816 err = netxen_need_fw_reset(adapter);
1dbc84a7 817 if (err < 0)
db4cfd8a 818 goto err_out;
1dbc84a7 819 if (err == 0)
ec5c50cb 820 goto ready;
67c38fc6 821
ba599d4f 822 if (first_boot != 0x55555555) {
f98a9f69 823 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 824 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 825 msleep(1);
826 }
567c6c4e 827
f98a9f69 828 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 829 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
830 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
831
567c6c4e
DP		 832 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
833 netxen_set_port_mode(adapter);
834
db4cfd8a
DP		 835 err = netxen_load_firmware(adapter);
836 if (err)
837 goto err_out;
ba599d4f 838
6a581e93
DP		 839 netxen_release_firmware(adapter);
840
ba599d4f
DP		 841 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
842
843 /* Initialize multicast addr pool owners */
844 val = 0x7654;
1e2d0059 845 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 846 val |= 0x0f000000;
f98a9f69 847 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 848
849 }
850
83ac51fa 851 err = netxen_init_dummy_dma(adapter);
ba599d4f 852 if (err)
db4cfd8a 853 goto err_out;
ba599d4f
DP		 854
855 /*
856 * Tell the hardware our version number.
857 */
858 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
859 | ((_NETXEN_NIC_LINUX_MINOR << 8))
860 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 861 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 862
ec5c50cb 863ready:
6a581e93
DP		 864 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
865
96f2ebd2 866wait_init:
ba599d4f
DP		 867 /* Handshake with the card before we register the devices. */
868 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
869 if (err) {
83ac51fa 870 netxen_free_dummy_dma(adapter);
db4cfd8a 871 goto err_out;
ba599d4f
DP		 872 }
873
68b3cae0
DP		 874 nx_update_dma_mask(adapter);
875
6a581e93 876 netxen_check_options(adapter);
68b3cae0 877
74c520da
AKS		 878 adapter->need_fw_reset = 0;
879
ec5c50cb 880 /* fall through and release firmware */
db4cfd8a
DP		 881
882err_out:
883 netxen_release_firmware(adapter);
884 return err;
ba599d4f
DP		 885}
886
9f5bc7f1
DP		 887static int
888netxen_nic_request_irq(struct netxen_adapter *adapter)
889{
890 irq_handler_t handler;
d8b100c5
DP		 891 struct nx_host_sds_ring *sds_ring;
892 int err, ring;
893
9f5bc7f1
DP		 894 unsigned long flags = IRQF_SAMPLE_RANDOM;
895 struct net_device *netdev = adapter->netdev;
d8b100c5 896 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 897
9f5bc7f1
DP		 898 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
899 handler = netxen_msix_intr;
900 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
901 handler = netxen_msi_intr;
902 else {
903 flags |= IRQF_SHARED;
904 handler = netxen_intr;
905 }
906 adapter->irq = netdev->irq;
907
d8b100c5
DP		 908 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
909 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 910 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 911 err = request_irq(sds_ring->irq, handler,
912 flags, sds_ring->name, sds_ring);
913 if (err)
914 return err;
915 }
916
917 return 0;
918}
919
920static void
921netxen_nic_free_irq(struct netxen_adapter *adapter)
922{
923 int ring;
924 struct nx_host_sds_ring *sds_ring;
925
926 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
927
928 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
929 sds_ring = &recv_ctx->sds_rings[ring];
930 free_irq(sds_ring->irq, sds_ring);
931 }
9f5bc7f1
DP		 932}
933
ca2ef330
DP		 934static void
935netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
936{
937 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
938 adapter->coal.normal.data.rx_time_us =
939 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
940 adapter->coal.normal.data.rx_packets =
941 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
942 adapter->coal.normal.data.tx_time_us =
943 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
944 adapter->coal.normal.data.tx_packets =
945 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
946}
947
9f5bc7f1
DP		 948static int
949netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
950{
951 int err;
952
db4cfd8a
DP		 953 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
954 return -EIO;
955
9f5bc7f1
DP		 956 err = adapter->init_port(adapter, adapter->physical_port);
957 if (err) {
958 printk(KERN_ERR "%s: Failed to initialize port %d\n",
959 netxen_nic_driver_name, adapter->portnum);
960 return err;
961 }
3d0a3cc9
DP		 962 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
963 adapter->macaddr_set(adapter, netdev->dev_addr);
9f5bc7f1 964
3d0a3cc9
DP		 965 adapter->set_multi(netdev);
966 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 967
968 adapter->ahw.linkup = 0;
9f5bc7f1 969
d8b100c5
DP		 970 if (adapter->max_sds_rings > 1)
971 netxen_config_rss(adapter, 1);
9f5bc7f1 972
ca2ef330
DP		 973 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
974 netxen_config_intr_coalesce(adapter);
975
1bb482f8
NK		 976 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
977 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
978
b2af9cb0
DP		 979 netxen_napi_enable(adapter);
980
5103c9f7 981 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 982 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 983 else
984 netxen_nic_set_link_parameters(adapter);
985
6a581e93 986 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 987 return 0;
988}
989
990static void
991netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
992{
db4cfd8a
DP		 993 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
994 return;
995
6a581e93
DP		 996 clear_bit(__NX_DEV_UP, &adapter->state);
997
b2af9cb0 998 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 999 netif_carrier_off(netdev);
b2af9cb0 1000 netif_tx_disable(netdev);
9f5bc7f1
DP		 1001
1002 if (adapter->stop_port)
1003 adapter->stop_port(adapter);
1004
5cf4d323
DP		 1005 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1006 netxen_p3_free_mac_list(adapter);
1007
22b5794b
AKS		 1008 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1009
be339aee
DP		 1010 netxen_napi_disable(adapter);
1011
9f5bc7f1 1012 netxen_release_tx_buffers(adapter);
b2af9cb0 1013 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1014}
1015
1016
1017static int
1018netxen_nic_attach(struct netxen_adapter *adapter)
1019{
1020 struct net_device *netdev = adapter->netdev;
1021 struct pci_dev *pdev = adapter->pdev;
becf46a0 1022 int err, ring;
d8b100c5 1023 struct nx_host_rds_ring *rds_ring;
d877f1e3 1024 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1025
7042cd8f
AKS		 1026 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1027 return 0;
1028
9f5bc7f1 1029 err = netxen_init_firmware(adapter);
232e7d68
DP		 1030 if (err)
1031 return err;
1032
1033 err = netxen_napi_add(adapter, netdev);
1034 if (err)
1035 return err;
9f5bc7f1 1036
9f5bc7f1
DP		 1037 err = netxen_alloc_sw_resources(adapter);
1038 if (err) {
1039 printk(KERN_ERR "%s: Error in setting sw resources\n",
1040 netdev->name);
1041 return err;
1042 }
1043
9f5bc7f1
DP		 1044 err = netxen_alloc_hw_resources(adapter);
1045 if (err) {
1046 printk(KERN_ERR "%s: Error in setting hw resources\n",
1047 netdev->name);
1048 goto err_out_free_sw;
1049 }
1050
4f96b988 1051 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1052 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1053 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1054 crb_cmd_producer[adapter->portnum]);
1055 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1056 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1057
cb2107be
DP		 1058 tx_ring->producer = 0;
1059 tx_ring->sw_consumer = 0;
1060
1061 netxen_nic_update_cmd_producer(adapter, tx_ring);
1062 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1063 }
1064
d8b100c5
DP		 1065 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1066 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1067 netxen_post_rx_buffers(adapter, ring, rds_ring);
1068 }
9f5bc7f1
DP		 1069
1070 err = netxen_nic_request_irq(adapter);
1071 if (err) {
1072 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1073 netdev->name);
1074 goto err_out_free_rxbuf;
1075 }
1076
ca2ef330
DP		 1077 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1078 netxen_nic_init_coalesce_defaults(adapter);
1079
fa3ce355
NK		 1080 netxen_create_sysfs_entries(adapter);
1081
9f5bc7f1
DP		 1082 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1083 return 0;
1084
1085err_out_free_rxbuf:
1086 netxen_release_rx_buffers(adapter);
1087 netxen_free_hw_resources(adapter);
1088err_out_free_sw:
1089 netxen_free_sw_resources(adapter);
1090 return err;
1091}
1092
1093static void
1094netxen_nic_detach(struct netxen_adapter *adapter)
1095{
7042cd8f
AKS		 1096 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1097 return;
1098
fa3ce355
NK		 1099 netxen_remove_sysfs_entries(adapter);
1100
9f5bc7f1 1101 netxen_free_hw_resources(adapter);
cf981ffb 1102 netxen_release_rx_buffers(adapter);
be339aee 1103 netxen_nic_free_irq(adapter);
232e7d68 1104 netxen_napi_del(adapter);
9f5bc7f1
DP		 1105 netxen_free_sw_resources(adapter);
1106
1107 adapter->is_up = 0;
1108}
1109
7042cd8f
AKS		 1110int
1111netxen_nic_reset_context(struct netxen_adapter *adapter)
1112{
1113 int err = 0;
1114 struct net_device *netdev = adapter->netdev;
1115
6a581e93
DP		 1116 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1117 return -EBUSY;
1118
7042cd8f
AKS		 1119 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1120
6a581e93
DP		 1121 netif_device_detach(netdev);
1122
7042cd8f
AKS		 1123 if (netif_running(netdev))
1124 netxen_nic_down(adapter, netdev);
1125
1126 netxen_nic_detach(adapter);
1127
6a581e93
DP		 1128 if (netif_running(netdev)) {
1129 err = netxen_nic_attach(adapter);
1130 if (!err)
1131 err = netxen_nic_up(adapter, netdev);
7042cd8f 1132
6a581e93
DP		 1133 if (err)
1134 goto done;
1135 }
1136
1137 netif_device_attach(netdev);
7042cd8f 1138 }
6a581e93 1139
7042cd8f 1140done:
6a581e93 1141 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1142 return err;
1143}
1144
f17443f4
DP		 1145static int
1146netxen_setup_netdev(struct netxen_adapter *adapter,
1147 struct net_device *netdev)
1148{
1149 int err = 0;
1150 struct pci_dev *pdev = adapter->pdev;
1151
1152 adapter->rx_csum = 1;
1153 adapter->mc_enabled = 0;
1154 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1155 adapter->max_mc_count = 38;
1156 else
1157 adapter->max_mc_count = 16;
1158
1159 netdev->netdev_ops = &netxen_netdev_ops;
1160 netdev->watchdog_timeo = 2*HZ;
1161
1162 netxen_nic_change_mtu(netdev, netdev->mtu);
1163
1164 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1165
1166 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1167 netdev->features |= (NETIF_F_GRO);
1168 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1169
1170 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1171 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1172 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1173 }
1174
1175 if (adapter->pci_using_dac) {
1176 netdev->features |= NETIF_F_HIGHDMA;
1177 netdev->vlan_features |= NETIF_F_HIGHDMA;
1178 }
1179
028afe71
DP		 1180 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1181 netdev->features |= (NETIF_F_HW_VLAN_TX);
1182
1bb482f8
NK		 1183 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1184 netdev->features |= NETIF_F_LRO;
1185
f17443f4
DP		 1186 netdev->irq = adapter->msix_entries[0].vector;
1187
74c520da 1188 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1189
1190 if (netxen_read_mac_addr(adapter))
1191 dev_warn(&pdev->dev, "failed to read mac addr\n");
1192
1193 netif_carrier_off(netdev);
1194 netif_stop_queue(netdev);
1195
1196 err = register_netdev(netdev);
1197 if (err) {
1198 dev_err(&pdev->dev, "failed to register net device\n");
1199 return err;
1200 }
1201
1202 return 0;
1203}
1204
3d396eb1
AK		 1205static int __devinit
1206netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1207{
1208 struct net_device *netdev = NULL;
1209 struct netxen_adapter *adapter = NULL;
2956640d 1210 int i = 0, err;
3176ff3e 1211 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1212 uint8_t revision_id;
3d396eb1 1213
11d89d63 1214 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
c25c0b9b 1215 pr_warning("%s: chip revisions between 0x%x-0x%x"
11d89d63 1216 "will not be enabled.\n",
c25c0b9b 1217 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1218 return -ENODEV;
1219 }
1220
3d396eb1
AK		 1221 if ((err = pci_enable_device(pdev)))
1222 return err;
2956640d 1223
3d396eb1
AK		 1224 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1225 err = -ENODEV;
1226 goto err_out_disable_pdev;
1227 }
1228
1229 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1230 goto err_out_disable_pdev;
1231
1232 pci_set_master(pdev);
3176ff3e
MT		 1233
1234 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1235 if(!netdev) {
f17443f4
DP		 1236 dev_err(&pdev->dev, "failed to allocate net_device\n");
1237 err = -ENOMEM;
3176ff3e
MT		 1238 goto err_out_free_res;
1239 }
1240
3176ff3e
MT		 1241 SET_NETDEV_DEV(netdev, &pdev->dev);
1242
4cf1653a 1243 adapter = netdev_priv(netdev);
2956640d
DP		 1244 adapter->netdev = netdev;
1245 adapter->pdev = pdev;
13ba9c77 1246 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1247
1248 revision_id = pdev->revision;
1249 adapter->ahw.revision_id = revision_id;
1250
f03b0ebd
DP		 1251 rwlock_init(&adapter->ahw.crb_lock);
1252 spin_lock_init(&adapter->ahw.mem_lock);
1253
d8b100c5 1254 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1255 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1256
97daee83
DP		 1257 err = netxen_setup_pci_map(adapter);
1258 if (err)
6c80b18d 1259 goto err_out_free_netdev;
3d396eb1 1260
2d1a3bbd 1261 /* This will be reset for mezz cards */
3176ff3e 1262 adapter->portnum = pci_func_id;
3176ff3e 1263
f17443f4
DP		 1264 err = netxen_nic_get_board_info(adapter);
1265 if (err) {
1266 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1267 goto err_out_iounmap;
1268 }
6c80b18d 1269
13ba9c77 1270 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1271 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1272 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1273 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1274 if (pci_func_id >= 2)
13ba9c77 1275 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1276 break;
1277 default:
1278 break;
1279 }
13ba9c77 1280
6a581e93 1281 err = netxen_start_firmware(adapter);
0b72e659
DP		 1282 if (err)
1283 goto err_out_iounmap;
f17443f4 1284
3d396eb1 1285 /*
6c80b18d 1286 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1287 */
dcd56fdb 1288 adapter->physical_port = adapter->portnum;
4f96b988 1289 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1290 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1291 if (i != 0x55555555)
1292 adapter->physical_port = i;
1293 }
6c80b18d 1294
6a581e93 1295 netxen_nic_clear_stats(adapter);
2956640d 1296
97daee83 1297 netxen_setup_intr(adapter);
2956640d 1298
f17443f4 1299 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1300 if (err)
2956640d 1301 goto err_out_disable_msi;
6c80b18d
MT		 1302
1303 pci_set_drvdata(pdev, adapter);
3d396eb1 1304
6a581e93
DP		 1305 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1306
1e2d0059 1307 switch (adapter->ahw.port_type) {
2956640d
DP		 1308 case NETXEN_NIC_GBE:
1309 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1310 adapter->netdev->name);
1311 break;
1312 case NETXEN_NIC_XGBE:
1313 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1314 adapter->netdev->name);
1315 break;
3d396eb1 1316 }
3d396eb1 1317
70f9cf89
DP		 1318 netxen_create_diag_entries(adapter);
1319
2956640d
DP		 1320 return 0;
1321
1322err_out_disable_msi:
97daee83 1323 netxen_teardown_intr(adapter);
6c80b18d 1324
83ac51fa 1325 netxen_free_dummy_dma(adapter);
3d396eb1 1326
6a581e93
DP		 1327 nx_decr_dev_ref_cnt(adapter);
1328
2956640d 1329err_out_iounmap:
97daee83 1330 netxen_cleanup_pci_map(adapter);
cb8011ad 1331
6c80b18d
MT		 1332err_out_free_netdev:
1333 free_netdev(netdev);
1334
1335err_out_free_res:
3d396eb1 1336 pci_release_regions(pdev);
6c80b18d
MT		 1337
1338err_out_disable_pdev:
2956640d 1339 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1340 pci_disable_device(pdev);
1341 return err;
1342}
1343
1344static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1345{
1346 struct netxen_adapter *adapter;
3176ff3e 1347 struct net_device *netdev;
3d396eb1 1348
6c80b18d 1349 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1350 if (adapter == NULL)
1351 return;
1352
6c80b18d
MT		 1353 netdev = adapter->netdev;
1354
6a581e93
DP		 1355 netxen_cancel_fw_work(adapter);
1356
96acb6eb
DP		 1357 unregister_netdev(netdev);
1358
e424fa9d
AKS		 1359 cancel_work_sync(&adapter->tx_timeout_task);
1360
7042cd8f 1361 netxen_nic_detach(adapter);
3d396eb1 1362
6a581e93
DP		 1363 nx_decr_dev_ref_cnt(adapter);
1364
439b454e 1365 if (adapter->portnum == 0)
83ac51fa 1366 netxen_free_dummy_dma(adapter);
96acb6eb 1367
6a581e93
DP		 1368 clear_bit(__NX_RESETTING, &adapter->state);
1369
97daee83 1370 netxen_teardown_intr(adapter);
3052246c 1371
70f9cf89
DP		 1372 netxen_remove_diag_entries(adapter);
1373
97daee83 1374 netxen_cleanup_pci_map(adapter);
595e3fb8 1375
f7185c71
DP		 1376 netxen_release_firmware(adapter);
1377
595e3fb8 1378 pci_release_regions(pdev);
3052246c 1379 pci_disable_device(pdev);
595e3fb8
MT		 1380 pci_set_drvdata(pdev, NULL);
1381
6c80b18d 1382 free_netdev(netdev);
3d396eb1 1383}
22b5794b 1384static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1385{
0b72e659
DP		 1386 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1387 struct net_device *netdev = adapter->netdev;
22b5794b 1388 int retval;
0b72e659
DP		 1389
1390 netif_device_detach(netdev);
1391
6a581e93
DP		 1392 netxen_cancel_fw_work(adapter);
1393
0b72e659
DP		 1394 if (netif_running(netdev))
1395 netxen_nic_down(adapter, netdev);
1396
e424fa9d
AKS		 1397 cancel_work_sync(&adapter->tx_timeout_task);
1398
7042cd8f 1399 netxen_nic_detach(adapter);
0b72e659 1400
22b5794b
AKS		 1401 if (adapter->portnum == 0)
1402 netxen_free_dummy_dma(adapter);
1403
6a581e93
DP		 1404 nx_decr_dev_ref_cnt(adapter);
1405
1406 clear_bit(__NX_RESETTING, &adapter->state);
1407
22b5794b
AKS		 1408 retval = pci_save_state(pdev);
1409 if (retval)
1410 return retval;
0b72e659
DP		 1411
1412 if (netxen_nic_wol_supported(adapter)) {
1413 pci_enable_wake(pdev, PCI_D3cold, 1);
1414 pci_enable_wake(pdev, PCI_D3hot, 1);
1415 }
1416
1417 pci_disable_device(pdev);
0b72e659
DP		 1418
1419 return 0;
1420}
22b5794b
AKS		 1421static void netxen_nic_shutdown(struct pci_dev *pdev)
1422{
1423 if (__netxen_nic_shutdown(pdev))
1424 return;
1425}
1426#ifdef CONFIG_PM
1427static int
1428netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1429{
1430 int retval;
1431
1432 retval = __netxen_nic_shutdown(pdev);
1433 if (retval)
1434 return retval;
1435
1436 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1437 return 0;
1438}
0b72e659
DP		 1439
1440static int
1441netxen_nic_resume(struct pci_dev *pdev)
1442{
1443 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1444 struct net_device *netdev = adapter->netdev;
1445 int err;
1446
1447 pci_set_power_state(pdev, PCI_D0);
1448 pci_restore_state(pdev);
1449
1450 err = pci_enable_device(pdev);
1451 if (err)
1452 return err;
1453
907fa120 1454 adapter->ahw.crb_win = -1;
47abe356 1455 adapter->ahw.ocm_win = -1;
0b72e659 1456
6a581e93 1457 err = netxen_start_firmware(adapter);
0b72e659
DP		 1458 if (err) {
1459 dev_err(&pdev->dev, "failed to start firmware\n");
1460 return err;
1461 }
1462
1463 if (netif_running(netdev)) {
1464 err = netxen_nic_attach(adapter);
1465 if (err)
6a581e93 1466 goto err_out;
0b72e659
DP		 1467
1468 err = netxen_nic_up(adapter, netdev);
1469 if (err)
6a581e93 1470 goto err_out_detach;
0b72e659
DP		 1471
1472 netif_device_attach(netdev);
d0725e4d
AKS		 1473
1474 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1475 }
1476
6a581e93 1477 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1478 return 0;
6a581e93
DP		 1479
1480err_out_detach:
1481 netxen_nic_detach(adapter);
1482err_out:
1483 nx_decr_dev_ref_cnt(adapter);
1484 return err;
0b72e659 1485}
01542cd1 1486#endif
0b72e659 1487
3d396eb1
AK		 1488static int netxen_nic_open(struct net_device *netdev)
1489{
4cf1653a 1490 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1491 int err = 0;
3d396eb1 1492
dcd56fdb
DP		 1493 if (adapter->driver_mismatch)
1494 return -EIO;
1495
7042cd8f
AKS		 1496 err = netxen_nic_attach(adapter);
1497 if (err)
1498 return err;
2956640d 1499
9f5bc7f1
DP		 1500 err = netxen_nic_up(adapter, netdev);
1501 if (err)
1502 goto err_out;
05aaa02d 1503
dcd56fdb 1504 netif_start_queue(netdev);
3d396eb1
AK		 1505
1506 return 0;
2956640d 1507
9f5bc7f1
DP		 1508err_out:
1509 netxen_nic_detach(adapter);
2956640d 1510 return err;
3d396eb1
AK		 1511}
1512
1513/*
1514 * netxen_nic_close - Disables a network interface entry point
1515 */
1516static int netxen_nic_close(struct net_device *netdev)
1517{
3176ff3e 1518 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1519
9f5bc7f1 1520 netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1521 return 0;
1522}
1523
1bcfd790
DP		 1524static void
1525netxen_tso_check(struct net_device *netdev,
1526 struct nx_host_tx_ring *tx_ring,
1527 struct cmd_desc_type0 *first_desc,
1528 struct sk_buff *skb)
cd1f8160 1529{
391587c3 1530 u8 opcode = TX_ETHER_PKT;
cdff1036 1531 __be16 protocol = skb->protocol;
028afe71 1532 u16 flags = 0, vid = 0;
1bcfd790 1533 u32 producer;
028afe71 1534 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1535 struct cmd_desc_type0 *hwdesc;
028afe71 1536 struct vlan_ethhdr *vh;
cdff1036 1537
09640e63 1538 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1539
1540 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1541 protocol = vh->h_vlan_encapsulated_proto;
1542 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1543
1544 } else if (vlan_tx_tag_present(skb)) {
1545
1546 flags = FLAGS_VLAN_OOB;
1547 vid = vlan_tx_tag_get(skb);
1548 netxen_set_tx_vlan_tci(first_desc, vid);
1549 vlan_oob = 1;
cdff1036 1550 }
cd1f8160 1551
391587c3
DP		 1552 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1553 skb_shinfo(skb)->gso_size > 0) {
1554
1bcfd790
DP		 1555 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1556
1557 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1558 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1559 if (vlan_oob) {
1560 first_desc->total_hdr_length += VLAN_HLEN;
1561 first_desc->tcp_hdr_offset = VLAN_HLEN;
1562 first_desc->ip_hdr_offset = VLAN_HLEN;
1563 /* Only in case of TSO on vlan device */
1564 flags |= FLAGS_VLAN_TAGGED;
1565 }
391587c3 1566
09640e63 1567 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1568 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1569 tso = 1;
cd1f8160
DP		 1570
1571 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1572 u8 l4proto;
1573
09640e63 1574 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1575 l4proto = ip_hdr(skb)->protocol;
1576
1577 if (l4proto == IPPROTO_TCP)
1578 opcode = TX_TCP_PKT;
1579 else if(l4proto == IPPROTO_UDP)
1580 opcode = TX_UDP_PKT;
09640e63 1581 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1582 l4proto = ipv6_hdr(skb)->nexthdr;
1583
1584 if (l4proto == IPPROTO_TCP)
1585 opcode = TX_TCPV6_PKT;
1586 else if(l4proto == IPPROTO_UDP)
1587 opcode = TX_UDPV6_PKT;
1588 }
cd1f8160 1589 }
028afe71
DP		 1590
1591 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1592 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1593 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1594
1595 if (!tso)
1596 return;
1597
1598 /* For LSO, we need to copy the MAC/IP/TCP headers into
1599 * the descriptor ring
1600 */
1601 producer = tx_ring->producer;
1602 copied = 0;
1603 offset = 2;
1604
028afe71
DP		 1605 if (vlan_oob) {
1606 /* Create a TSO vlan header template for firmware */
1607
1608 hwdesc = &tx_ring->desc_head[producer];
1609 tx_ring->cmd_buf_arr[producer].skb = NULL;
1610
1611 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1612 hdr_len + VLAN_HLEN);
1613
1614 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1615 skb_copy_from_linear_data(skb, vh, 12);
1616 vh->h_vlan_proto = htons(ETH_P_8021Q);
1617 vh->h_vlan_TCI = htons(vid);
1618 skb_copy_from_linear_data_offset(skb, 12,
1619 (char *)vh + 16, copy_len - 16);
1620
545eb370 1621 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1622 offset = 0;
1623
1624 producer = get_next_index(producer, tx_ring->num_desc);
1625 }
1626
1bcfd790
DP		 1627 while (copied < hdr_len) {
1628
1629 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1630 (hdr_len - copied));
1631
1632 hwdesc = &tx_ring->desc_head[producer];
1633 tx_ring->cmd_buf_arr[producer].skb = NULL;
1634
1635 skb_copy_from_linear_data_offset(skb, copied,
1636 (char *)hwdesc + offset, copy_len);
1637
1638 copied += copy_len;
1639 offset = 0;
1640
1641 producer = get_next_index(producer, tx_ring->num_desc);
1642 }
1643
1644 tx_ring->producer = producer;
1645 barrier();
cd1f8160
DP		 1646}
1647
ce644ed4
DP		 1648static int
1649netxen_map_tx_skb(struct pci_dev *pdev,
1650 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1651{
ce644ed4
DP		 1652 struct netxen_skb_frag *nf;
1653 struct skb_frag_struct *frag;
1654 int i, nr_frags;
1655 dma_addr_t map;
1656
1657 nr_frags = skb_shinfo(skb)->nr_frags;
1658 nf = &pbuf->frag_array[0];
1659
1660 map = pci_map_single(pdev, skb->data,
1661 skb_headlen(skb), PCI_DMA_TODEVICE);
1662 if (pci_dma_mapping_error(pdev, map))
1663 goto out_err;
6f703406 1664
ce644ed4
DP		 1665 nf->dma = map;
1666 nf->length = skb_headlen(skb);
1667
1668 for (i = 0; i < nr_frags; i++) {
1669 frag = &skb_shinfo(skb)->frags[i];
1670 nf = &pbuf->frag_array[i+1];
1671
1672 map = pci_map_page(pdev, frag->page, frag->page_offset,
1673 frag->size, PCI_DMA_TODEVICE);
1674 if (pci_dma_mapping_error(pdev, map))
1675 goto unwind;
1676
1677 nf->dma = map;
1678 nf->length = frag->size;
1679 }
1680
1681 return 0;
6f703406 1682
ce644ed4 1683unwind:
cf503e8f
DP		 1684 while (--i >= 0) {
1685 nf = &pbuf->frag_array[i+1];
ce644ed4 1686 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1687 }
ce644ed4
DP		 1688
1689 nf = &pbuf->frag_array[0];
1690 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1691
1692out_err:
1693 return -ENOMEM;
6f703406
DP		 1694}
1695
d32cc3d2
DP		 1696static inline void
1697netxen_clear_cmddesc(u64 *desc)
1698{
1bcfd790
DP		 1699 desc[0] = 0ULL;
1700 desc[2] = 0ULL;
d32cc3d2
DP		 1701}
1702
61357325 1703static netdev_tx_t
d32cc3d2 1704netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1705{
3176ff3e 1706 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1707 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1708 struct netxen_cmd_buffer *pbuf;
3d396eb1 1709 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1710 struct cmd_desc_type0 *hwdesc, *first_desc;
1711 struct pci_dev *pdev;
391587c3 1712 int i, k;
3d396eb1 1713
cb2107be 1714 u32 producer;
ce644ed4 1715 int frag_count, no_of_desc;
d877f1e3 1716 u32 num_txd = tx_ring->num_desc;
3d396eb1 1717
3d396eb1
AK		 1718 frag_count = skb_shinfo(skb)->nr_frags + 1;
1719
d877f1e3 1720 /* 4 fragments per cmd des */
3d396eb1 1721 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1722
fa9859ef 1723 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
ba53e6b4 1724 netif_stop_queue(netdev);
ba53e6b4 1725 return NETDEV_TX_BUSY;
53a01e00 1726 }
3d396eb1 1727
cb2107be 1728 producer = tx_ring->producer;
ce644ed4 1729 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1730
1bcfd790 1731 pdev = adapter->pdev;
391587c3 1732
ce644ed4 1733 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1734 goto drop_packet;
391587c3 1735
3d396eb1 1736 pbuf->skb = skb;
3d396eb1 1737 pbuf->frag_count = frag_count;
6f703406 1738
1bcfd790
DP		 1739 first_desc = hwdesc = &tx_ring->desc_head[producer];
1740 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1741
ce644ed4
DP		 1742 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1743 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1744
ce644ed4 1745 for (i = 0; i < frag_count; i++) {
3d396eb1 1746
ce644ed4
DP		 1747 k = i % 4;
1748
1749 if ((k == 0) && (i > 0)) {
1750 /* move to next desc.*/
ba53e6b4 1751 producer = get_next_index(producer, num_txd);
d877f1e3 1752 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1753 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1754 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1755 }
3d396eb1 1756
ce644ed4 1757 buffrag = &pbuf->frag_array[i];
3d396eb1 1758
ce644ed4 1759 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1760 switch (k) {
1761 case 0:
ce644ed4 1762 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1763 break;
1764 case 1:
ce644ed4 1765 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1766 break;
1767 case 2:
ce644ed4 1768 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1769 break;
1770 case 3:
ce644ed4 1771 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1772 break;
1773 }
3d396eb1 1774 }
ce644ed4 1775
1bcfd790 1776 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1777
1bcfd790 1778 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1779
cb2107be 1780 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1781
1bcfd790 1782 adapter->stats.txbytes += skb->len;
ba53e6b4 1783 adapter->stats.xmitcalled++;
3d396eb1 1784
3d396eb1 1785 return NETDEV_TX_OK;
6f703406
DP		 1786
1787drop_packet:
1788 adapter->stats.txdropped++;
1789 dev_kfree_skb_any(skb);
1790 return NETDEV_TX_OK;
3d396eb1
AK		 1791}
1792
a97342f9
DP		 1793static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1794{
1795 struct net_device *netdev = adapter->netdev;
1796 uint32_t temp, temp_state, temp_val;
1797 int rv = 0;
1798
f98a9f69 1799 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1800
1801 temp_state = nx_get_temp_state(temp);
1802 temp_val = nx_get_temp_val(temp);
1803
1804 if (temp_state == NX_TEMP_PANIC) {
1805 printk(KERN_ALERT
1806 "%s: Device temperature %d degrees C exceeds"
1807 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1808 netdev->name, temp_val);
a97342f9
DP		 1809 rv = 1;
1810 } else if (temp_state == NX_TEMP_WARN) {
1811 if (adapter->temp == NX_TEMP_NORMAL) {
1812 printk(KERN_ALERT
1813 "%s: Device temperature %d degrees C "
1814 "exceeds operating range."
1815 " Immediate action needed.\n",
e4135c2d 1816 netdev->name, temp_val);
a97342f9
DP		 1817 }
1818 } else {
1819 if (adapter->temp == NX_TEMP_WARN) {
1820 printk(KERN_INFO
1821 "%s: Device temperature is now %d degrees C"
e4135c2d 1822 " in normal range.\n", netdev->name,
a97342f9
DP		 1823 temp_val);
1824 }
1825 }
1826 adapter->temp = temp_state;
1827 return rv;
1828}
1829
3bf26ce3 1830void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1831{
1832 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1833
1834 if (adapter->ahw.linkup && !linkup) {
1835 printk(KERN_INFO "%s: %s NIC Link is down\n",
1836 netxen_nic_driver_name, netdev->name);
1837 adapter->ahw.linkup = 0;
1838 if (netif_running(netdev)) {
1839 netif_carrier_off(netdev);
1840 netif_stop_queue(netdev);
1841 }
e424fa9d 1842 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1843 } else if (!adapter->ahw.linkup && linkup) {
1844 printk(KERN_INFO "%s: %s NIC Link is up\n",
1845 netxen_nic_driver_name, netdev->name);
1846 adapter->ahw.linkup = 1;
1847 if (netif_running(netdev)) {
1848 netif_carrier_on(netdev);
1849 netif_wake_queue(netdev);
1850 }
e424fa9d 1851 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1852 }
1853}
1854
3bf26ce3
DP		 1855static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1856{
1857 u32 val, port, linkup;
1858
1859 port = adapter->physical_port;
1860
1861 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1862 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1863 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1864 linkup = (val == XG_LINK_UP_P3);
1865 } else {
f98a9f69 1866 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1867 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1868 linkup = (val >> port) & 1;
1869 else {
1870 val = (val >> port*8) & 0xff;
1871 linkup = (val == XG_LINK_UP);
1872 }
1873 }
1874
1875 netxen_advert_link_change(adapter, linkup);
1876}
1877
3d396eb1
AK		 1878static void netxen_tx_timeout(struct net_device *netdev)
1879{
e424fa9d 1880 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1881
6a581e93
DP		 1882 if (test_bit(__NX_RESETTING, &adapter->state))
1883 return;
1884
f17443f4 1885 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1886 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1887}
1888
74c520da 1889static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 1890{
4790654c 1891 struct netxen_adapter *adapter =
3176ff3e 1892 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1893
b2af9cb0
DP		 1894 if (!netif_running(adapter->netdev))
1895 return;
1896
74c520da 1897 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 1898 return;
1899
74c520da
AKS		 1900 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1901 goto request_reset;
1902
1903 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1904 /* try to scrub interrupt */
1905 netxen_napi_disable(adapter);
ba53e6b4 1906
74c520da 1907 adapter->netdev->trans_start = jiffies;
ba53e6b4 1908
74c520da
AKS		 1909 netxen_napi_enable(adapter);
1910
1911 netif_wake_queue(adapter->netdev);
1912
a598ae17 1913 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1914
1915 } else {
a598ae17 1916 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1917 if (!netxen_nic_reset_context(adapter)) {
1918 adapter->netdev->trans_start = jiffies;
a598ae17 1919 return;
74c520da
AKS		 1920 }
1921
1922 /* context reset failed, fall through for fw reset */
1923 }
1924
1925request_reset:
1926 adapter->need_fw_reset = 1;
ff8a306d 1927 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 1928}
1929
a97342f9
DP		 1930struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1931{
1932 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 1933 struct net_device_stats *stats = &netdev->stats;
a97342f9
DP		 1934
1935 memset(stats, 0, sizeof(*stats));
1936
1bb482f8 1937 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1938 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1939 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1940 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1941 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1942 stats->tx_dropped = adapter->stats.txdropped;
1943
1944 return stats;
1945}
1946
e4c93c81 1947static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1948{
d8b100c5
DP		 1949 struct nx_host_sds_ring *sds_ring = data;
1950 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1951 u32 status = 0;
1952
195c5f98 1953 status = readl(adapter->isr_int_vec);
d71e1be8 1954
195c5f98 1955 if (!(status & adapter->int_vec_bit))
05aaa02d 1956 return IRQ_NONE;
e01872af 1957
195c5f98 1958 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 1959 /* check interrupt state machine, to be sure */
195c5f98 1960 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 1961 if (!ISR_LEGACY_INT_TRIGGERED(status))
1962 return IRQ_NONE;
1963
092bc571
DP		 1964 } else {
1965 unsigned long our_int = 0;
d71e1be8 1966
195c5f98 1967 our_int = readl(adapter->crb_int_state_reg);
092bc571 1968
d71e1be8 1969 /* not our interrupt */
092bc571 1970 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1971 return IRQ_NONE;
1972
092bc571 1973 /* claim interrupt */
195c5f98 1974 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 1975
195c5f98 1976 /* clear interrupt */
d8b100c5 1977 netxen_nic_disable_int(sds_ring);
195c5f98 1978 }
092bc571 1979
195c5f98 1980 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1981 /* read twice to ensure write is flushed */
195c5f98
AKS		 1982 readl(adapter->isr_int_vec);
1983 readl(adapter->isr_int_vec);
092bc571 1984
d8b100c5 1985 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 1986
1987 return IRQ_HANDLED;
1988}
1989
e4c93c81 1990static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 1991{
d8b100c5
DP		 1992 struct nx_host_sds_ring *sds_ring = data;
1993 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 1994
092bc571 1995 /* clear interrupt */
195c5f98 1996 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1997
d8b100c5 1998 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 1999 return IRQ_HANDLED;
2000}
2001
b3df68f8
DP		 2002static irqreturn_t netxen_msix_intr(int irq, void *data)
2003{
d8b100c5 2004 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2005
d8b100c5 2006 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2007 return IRQ_HANDLED;
2008}
2009
bea3348e 2010static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2011{
d8b100c5
DP		 2012 struct nx_host_sds_ring *sds_ring =
2013 container_of(napi, struct nx_host_sds_ring, napi);
2014
2015 struct netxen_adapter *adapter = sds_ring->adapter;
2016
05aaa02d 2017 int tx_complete;
bea3348e 2018 int work_done;
3d396eb1 2019
05aaa02d 2020 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2021
d8b100c5 2022 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2023
05aaa02d 2024 if ((work_done < budget) && tx_complete) {
d8b100c5 2025 napi_complete(&sds_ring->napi);
b2af9cb0
DP		 2026 if (netif_running(adapter->netdev))
2027 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2028 }
2029
bea3348e 2030 return work_done;
3d396eb1
AK		 2031}
2032
2033#ifdef CONFIG_NET_POLL_CONTROLLER
2034static void netxen_nic_poll_controller(struct net_device *netdev)
2035{
3176ff3e 2036 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 2037 disable_irq(adapter->irq);
1494a814 2038 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 2039 enable_irq(adapter->irq);
2040}
2041#endif
3d396eb1 2042
6a581e93
DP		 2043static int
2044nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2045{
2046 int count;
2047 if (netxen_api_lock(adapter))
2048 return -EIO;
2049
2050 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2051
2052 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2053
2054 netxen_api_unlock(adapter);
2055 return count;
2056}
2057
2058static int
2059nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2060{
2061 int count;
2062 if (netxen_api_lock(adapter))
2063 return -EIO;
2064
2065 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2066 WARN_ON(count == 0);
2067
2068 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2069
2070 if (count == 0)
2071 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2072
2073 netxen_api_unlock(adapter);
2074 return count;
2075}
2076
74c520da
AKS		 2077static void
2078nx_dev_request_reset(struct netxen_adapter *adapter)
2079{
2080 u32 state;
2081
2082 if (netxen_api_lock(adapter))
2083 return;
2084
2085 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2086
2087 if (state != NX_DEV_INITALIZING)
2088 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2089
2090 netxen_api_unlock(adapter);
2091}
2092
6a581e93
DP		 2093static int
2094netxen_can_start_firmware(struct netxen_adapter *adapter)
2095{
2096 int count;
2097 int can_start = 0;
2098
2099 if (netxen_api_lock(adapter))
2100 return 0;
2101
2102 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2103
2104 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2105 count = 0;
2106
2107 if (count == 0) {
2108 can_start = 1;
2109 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2110 }
2111
2112 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2113
2114 netxen_api_unlock(adapter);
2115
2116 return can_start;
2117}
2118
2119static void
2120netxen_schedule_work(struct netxen_adapter *adapter,
2121 work_func_t func, int delay)
2122{
2123 INIT_DELAYED_WORK(&adapter->fw_work, func);
2124 schedule_delayed_work(&adapter->fw_work, delay);
2125}
2126
2127static void
2128netxen_cancel_fw_work(struct netxen_adapter *adapter)
2129{
2130 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2131 msleep(10);
2132
2133 cancel_delayed_work_sync(&adapter->fw_work);
2134}
2135
2136static void
2137netxen_attach_work(struct work_struct *work)
2138{
2139 struct netxen_adapter *adapter = container_of(work,
2140 struct netxen_adapter, fw_work.work);
2141 struct net_device *netdev = adapter->netdev;
2142 int err = 0;
2143
2144 if (netif_running(netdev)) {
2145 err = netxen_nic_attach(adapter);
2146 if (err)
2147 goto done;
2148
2149 err = netxen_nic_up(adapter, netdev);
2150 if (err) {
2151 netxen_nic_detach(adapter);
2152 goto done;
2153 }
2154
d0725e4d 2155 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2156 }
2157
2158 netif_device_attach(netdev);
2159
2160done:
2161 adapter->fw_fail_cnt = 0;
2162 clear_bit(__NX_RESETTING, &adapter->state);
2163 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2164}
2165
2166static void
2167netxen_fwinit_work(struct work_struct *work)
2168{
2169 struct netxen_adapter *adapter = container_of(work,
2170 struct netxen_adapter, fw_work.work);
2171 int dev_state;
2172
2173 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2174
2175 switch (dev_state) {
2176 case NX_DEV_COLD:
2177 case NX_DEV_READY:
74c520da
AKS		 2178 if (!netxen_start_firmware(adapter)) {
2179 netxen_schedule_work(adapter, netxen_attach_work, 0);
2180 return;
2181 }
2182 break;
6a581e93
DP		 2183
2184 case NX_DEV_INITALIZING:
2185 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2186 netxen_schedule_work(adapter,
2187 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2188 return;
2189 }
2190 break;
2191
2192 case NX_DEV_FAILED:
2193 default:
2194 break;
2195 }
2196
2197 nx_incr_dev_ref_cnt(adapter);
2198 clear_bit(__NX_RESETTING, &adapter->state);
2199}
2200
2201static void
2202netxen_detach_work(struct work_struct *work)
2203{
2204 struct netxen_adapter *adapter = container_of(work,
2205 struct netxen_adapter, fw_work.work);
2206 struct net_device *netdev = adapter->netdev;
2207 int ref_cnt, delay;
2208 u32 status;
2209
2210 netif_device_detach(netdev);
2211
2212 if (netif_running(netdev))
2213 netxen_nic_down(adapter, netdev);
2214
2215 netxen_nic_detach(adapter);
2216
2217 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2218
2219 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2220
2221 if (status & NX_RCODE_FATAL_ERROR)
2222 return;
2223
2224 if (adapter->temp == NX_TEMP_PANIC)
2225 return;
2226
2227 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2228
2229 adapter->fw_wait_cnt = 0;
2230 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2231}
2232
2233static int
2234netxen_check_health(struct netxen_adapter *adapter)
2235{
2236 u32 state, heartbit;
2237 struct net_device *netdev = adapter->netdev;
2238
2239 if (netxen_nic_check_temp(adapter))
2240 goto detach;
2241
74c520da
AKS		 2242 if (adapter->need_fw_reset) {
2243 nx_dev_request_reset(adapter);
2244 goto detach;
2245 }
2246
6a581e93
DP		 2247 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2248 if (state == NX_DEV_NEED_RESET)
2249 goto detach;
2250
2251 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2252 return 0;
2253
2254 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2255 if (heartbit != adapter->heartbit) {
2256 adapter->heartbit = heartbit;
2257 adapter->fw_fail_cnt = 0;
2258 return 0;
2259 }
2260
2261 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2262 return 0;
2263
2264 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2265
2266 dev_info(&netdev->dev, "firmware hang detected\n");
2267
2268detach:
caa2dd53
NK		 2269 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2270 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2271 netxen_schedule_work(adapter, netxen_detach_work, 0);
2272 return 1;
2273}
2274
2275static void
2276netxen_fw_poll_work(struct work_struct *work)
2277{
2278 struct netxen_adapter *adapter = container_of(work,
2279 struct netxen_adapter, fw_work.work);
2280
2281 if (test_bit(__NX_RESETTING, &adapter->state))
2282 goto reschedule;
2283
2284 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2285 if (!adapter->has_link_events) {
2286
2287 netxen_nic_handle_phy_intr(adapter);
2288
2289 if (adapter->link_changed)
2290 netxen_nic_set_link_parameters(adapter);
2291 }
2292 }
2293
2294 if (netxen_check_health(adapter))
2295 return;
2296
2297reschedule:
2298 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2299}
2300
fa3ce355
NK		 2301static ssize_t
2302netxen_store_bridged_mode(struct device *dev,
2303 struct device_attribute *attr, const char *buf, size_t len)
2304{
2305 struct net_device *net = to_net_dev(dev);
2306 struct netxen_adapter *adapter = netdev_priv(net);
2307 unsigned long new;
2308 int ret = -EINVAL;
2309
2310 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2311 goto err_out;
2312
2313 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2314 goto err_out;
2315
2316 if (strict_strtoul(buf, 2, &new))
2317 goto err_out;
2318
2319 if (!netxen_config_bridged_mode(adapter, !!new))
2320 ret = len;
2321
2322err_out:
2323 return ret;
2324}
2325
2326static ssize_t
2327netxen_show_bridged_mode(struct device *dev,
2328 struct device_attribute *attr, char *buf)
2329{
2330 struct net_device *net = to_net_dev(dev);
2331 struct netxen_adapter *adapter;
2332 int bridged_mode = 0;
2333
2334 adapter = netdev_priv(net);
2335
2336 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2337 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2338
2339 return sprintf(buf, "%d\n", bridged_mode);
2340}
2341
2342static struct device_attribute dev_attr_bridged_mode = {
2343 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2344 .show = netxen_show_bridged_mode,
2345 .store = netxen_store_bridged_mode,
2346};
2347
70f9cf89
DP		 2348static ssize_t
2349netxen_store_diag_mode(struct device *dev,
2350 struct device_attribute *attr, const char *buf, size_t len)
2351{
2352 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2353 unsigned long new;
2354
2355 if (strict_strtoul(buf, 2, &new))
2356 return -EINVAL;
2357
2358 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2359 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2360
2361 return len;
2362}
2363
2364static ssize_t
2365netxen_show_diag_mode(struct device *dev,
2366 struct device_attribute *attr, char *buf)
2367{
2368 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2369
2370 return sprintf(buf, "%d\n",
2371 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2372}
2373
2374static struct device_attribute dev_attr_diag_mode = {
2375 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2376 .show = netxen_show_diag_mode,
2377 .store = netxen_store_diag_mode,
2378};
2379
2380static int
2381netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2382 loff_t offset, size_t size)
2383{
2384 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2385 return -EIO;
2386
2387 if ((size != 4) || (offset & 0x3))
2388 return -EINVAL;
2389
2390 if (offset < NETXEN_PCI_CRBSPACE)
2391 return -EINVAL;
2392
2393 return 0;
2394}
2395
2396static ssize_t
2397netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2398 char *buf, loff_t offset, size_t size)
2399{
2400 struct device *dev = container_of(kobj, struct device, kobj);
2401 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2402 u32 data;
2403 int ret;
2404
2405 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2406 if (ret != 0)
2407 return ret;
2408
2409 data = NXRD32(adapter, offset);
2410 memcpy(buf, &data, size);
2411 return size;
2412}
2413
2414static ssize_t
2415netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2416 char *buf, loff_t offset, size_t size)
2417{
2418 struct device *dev = container_of(kobj, struct device, kobj);
2419 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2420 u32 data;
2421 int ret;
2422
2423 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2424 if (ret != 0)
2425 return ret;
2426
2427 memcpy(&data, buf, size);
2428 NXWR32(adapter, offset, data);
2429 return size;
2430}
2431
2432static int
2433netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2434 loff_t offset, size_t size)
2435{
2436 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2437 return -EIO;
2438
2439 if ((size != 8) || (offset & 0x7))
2440 return -EIO;
2441
2442 return 0;
2443}
2444
2445static ssize_t
2446netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2447 char *buf, loff_t offset, size_t size)
2448{
2449 struct device *dev = container_of(kobj, struct device, kobj);
2450 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2451 u64 data;
2452 int ret;
2453
2454 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2455 if (ret != 0)
2456 return ret;
2457
2458 if (adapter->pci_mem_read(adapter, offset, &data))
2459 return -EIO;
2460
2461 memcpy(buf, &data, size);
2462
2463 return size;
2464}
2465
2466ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2467 struct bin_attribute *attr, char *buf,
2468 loff_t offset, size_t size)
2469{
2470 struct device *dev = container_of(kobj, struct device, kobj);
2471 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2472 u64 data;
2473 int ret;
2474
2475 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2476 if (ret != 0)
2477 return ret;
2478
2479 memcpy(&data, buf, size);
2480
2481 if (adapter->pci_mem_write(adapter, offset, data))
2482 return -EIO;
2483
2484 return size;
2485}
2486
2487
2488static struct bin_attribute bin_attr_crb = {
2489 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2490 .size = 0,
2491 .read = netxen_sysfs_read_crb,
2492 .write = netxen_sysfs_write_crb,
2493};
2494
2495static struct bin_attribute bin_attr_mem = {
2496 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2497 .size = 0,
2498 .read = netxen_sysfs_read_mem,
2499 .write = netxen_sysfs_write_mem,
2500};
2501
0531d7b8 2502#ifdef CONFIG_MODULES
caa2dd53
NK		 2503static ssize_t
2504netxen_store_auto_fw_reset(struct module_attribute *mattr,
2505 struct module *mod, const char *buf, size_t count)
2506
2507{
2508 unsigned long new;
2509
2510 if (strict_strtoul(buf, 16, &new))
2511 return -EINVAL;
2512
2513 if ((new == AUTO_FW_RESET_ENABLED) || (new == AUTO_FW_RESET_DISABLED)) {
2514 auto_fw_reset = new;
2515 return count;
2516 }
2517
2518 return -EINVAL;
2519}
2520
2521static ssize_t
2522netxen_show_auto_fw_reset(struct module_attribute *mattr,
2523 struct module *mod, char *buf)
2524
2525{
2526 if (auto_fw_reset == AUTO_FW_RESET_ENABLED)
2527 return sprintf(buf, "enabled\n");
2528 else
2529 return sprintf(buf, "disabled\n");
2530}
2531
2532static struct module_attribute mod_attr_fw_reset = {
2533 .attr = {.name = "auto_fw_reset", .mode = (S_IRUGO | S_IWUSR)},
2534 .show = netxen_show_auto_fw_reset,
2535 .store = netxen_store_auto_fw_reset,
2536};
0531d7b8 2537#endif
caa2dd53 2538
fa3ce355
NK		 2539static void
2540netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2541{
2542 struct net_device *netdev = adapter->netdev;
2543 struct device *dev = &netdev->dev;
2544
2545 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2546 /* bridged_mode control */
2547 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2548 dev_warn(&netdev->dev,
2549 "failed to create bridged_mode sysfs entry\n");
2550 }
2551 }
2552}
2553
2554static void
2555netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2556{
2557 struct net_device *netdev = adapter->netdev;
2558 struct device *dev = &netdev->dev;
2559
2560 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2561 device_remove_file(dev, &dev_attr_bridged_mode);
2562}
2563
70f9cf89
DP		 2564static void
2565netxen_create_diag_entries(struct netxen_adapter *adapter)
2566{
2567 struct pci_dev *pdev = adapter->pdev;
2568 struct device *dev;
2569
2570 dev = &pdev->dev;
2571 if (device_create_file(dev, &dev_attr_diag_mode))
2572 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2573 if (device_create_bin_file(dev, &bin_attr_crb))
2574 dev_info(dev, "failed to create crb sysfs entry\n");
2575 if (device_create_bin_file(dev, &bin_attr_mem))
2576 dev_info(dev, "failed to create mem sysfs entry\n");
2577}
2578
2579
2580static void
2581netxen_remove_diag_entries(struct netxen_adapter *adapter)
2582{
2583 struct pci_dev *pdev = adapter->pdev;
2584 struct device *dev = &pdev->dev;
2585
2586 device_remove_file(dev, &dev_attr_diag_mode);
2587 device_remove_bin_file(dev, &bin_attr_crb);
2588 device_remove_bin_file(dev, &bin_attr_mem);
2589}
2590
044824d9
DP		 2591#ifdef CONFIG_INET
2592
6598b169
DP		 2593#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2594
2595static int
2596netxen_destip_supported(struct netxen_adapter *adapter)
2597{
2598 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2599 return 0;
2600
2601 if (adapter->ahw.cut_through)
2602 return 0;
2603
2604 return 1;
2605}
2606
d0725e4d
AKS		 2607static void
2608netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2609{
2610 struct in_device *indev;
2611 struct netxen_adapter *adapter = netdev_priv(dev);
2612
3db76755 2613 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2614 return;
2615
2616 indev = in_dev_get(dev);
2617 if (!indev)
2618 return;
2619
2620 for_ifa(indev) {
2621 switch (event) {
2622 case NETDEV_UP:
2623 netxen_config_ipaddr(adapter,
2624 ifa->ifa_address, NX_IP_UP);
2625 break;
2626 case NETDEV_DOWN:
2627 netxen_config_ipaddr(adapter,
2628 ifa->ifa_address, NX_IP_DOWN);
2629 break;
2630 default:
2631 break;
2632 }
2633 } endfor_ifa(indev);
2634
2635 in_dev_put(indev);
2636 return;
2637}
2638
6598b169
DP		 2639static int netxen_netdev_event(struct notifier_block *this,
2640 unsigned long event, void *ptr)
2641{
2642 struct netxen_adapter *adapter;
2643 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2644
2645recheck:
2646 if (dev == NULL)
2647 goto done;
2648
2649 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2650 dev = vlan_dev_real_dev(dev);
2651 goto recheck;
2652 }
2653
2654 if (!is_netxen_netdev(dev))
2655 goto done;
2656
2657 adapter = netdev_priv(dev);
2658
d0725e4d 2659 if (!adapter)
6598b169
DP		 2660 goto done;
2661
2662 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2663 goto done;
2664
d0725e4d 2665 netxen_config_indev_addr(dev, event);
6598b169
DP		 2666done:
2667 return NOTIFY_DONE;
2668}
2669
2670static int
2671netxen_inetaddr_event(struct notifier_block *this,
2672 unsigned long event, void *ptr)
2673{
2674 struct netxen_adapter *adapter;
2675 struct net_device *dev;
2676
2677 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2678
2679 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2680
2681recheck:
2682 if (dev == NULL || !netif_running(dev))
2683 goto done;
2684
2685 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2686 dev = vlan_dev_real_dev(dev);
2687 goto recheck;
2688 }
2689
2690 if (!is_netxen_netdev(dev))
2691 goto done;
2692
2693 adapter = netdev_priv(dev);
2694
2695 if (!adapter || !netxen_destip_supported(adapter))
2696 goto done;
2697
2698 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2699 goto done;
2700
2701 switch (event) {
2702 case NETDEV_UP:
2703 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2704 break;
2705 case NETDEV_DOWN:
2706 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2707 break;
2708 default:
2709 break;
2710 }
2711
2712done:
2713 return NOTIFY_DONE;
2714}
2715
2716static struct notifier_block netxen_netdev_cb = {
2717 .notifier_call = netxen_netdev_event,
2718};
2719
2720static struct notifier_block netxen_inetaddr_cb = {
2721 .notifier_call = netxen_inetaddr_event,
2722};
9feae56c
RD		 2723#else
2724static void
2725netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2726{ }
044824d9 2727#endif
6598b169 2728
3d396eb1
AK		 2729static struct pci_driver netxen_driver = {
2730 .name = netxen_nic_driver_name,
2731 .id_table = netxen_pci_tbl,
2732 .probe = netxen_nic_probe,
0b72e659 2733 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2734#ifdef CONFIG_PM
0b72e659 2735 .suspend = netxen_nic_suspend,
22b5794b 2736 .resume = netxen_nic_resume,
01542cd1 2737#endif
22b5794b 2738 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2739};
2740
3d396eb1
AK		 2741static int __init netxen_init_module(void)
2742{
0531d7b8 2743#ifdef CONFIG_MODULES
caa2dd53 2744 struct module *mod = THIS_MODULE;
0531d7b8 2745#endif
caa2dd53 2746
ff4fbd43
DP		 2747 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2748
044824d9 2749#ifdef CONFIG_INET
6598b169
DP		 2750 register_netdevice_notifier(&netxen_netdev_cb);
2751 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2752#endif
6598b169 2753
0531d7b8 2754#ifdef CONFIG_MODULES
caa2dd53
NK		 2755 if (sysfs_create_file(&mod->mkobj.kobj, &mod_attr_fw_reset.attr))
2756 printk(KERN_ERR "%s: Failed to create auto_fw_reset "
2757 "sysfs entry.", netxen_nic_driver_name);
0531d7b8 2758#endif
caa2dd53 2759
184231bd 2760 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2761}
2762
2763module_init(netxen_init_module);
2764
2765static void __exit netxen_exit_module(void)
2766{
0531d7b8 2767#ifdef CONFIG_MODULES
caa2dd53
NK		 2768 struct module *mod = THIS_MODULE;
2769
2770 sysfs_remove_file(&mod->mkobj.kobj, &mod_attr_fw_reset.attr);
0531d7b8 2771#endif
caa2dd53 2772
3d396eb1 2773 pci_unregister_driver(&netxen_driver);
6598b169 2774
044824d9 2775#ifdef CONFIG_INET
6598b169
DP		 2776 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2777 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2778#endif
3d396eb1
AK		 2779}
2780
2781module_exit(netxen_exit_module);
Clone of davem's net-next-2.6 tree