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netxen_nic: Allow only useful and recommended firmware dump capture mask values
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
CommitLineData
3d396eb1 1/*
5d242f1c 2 * Copyright (C) 2003 - 2009 NetXen, Inc.
13af7a6e 3 * Copyright (C) 2009 - QLogic Corporation.
3d396eb1 4 * All rights reserved.
80922fbc 5 *
3d396eb1
AK		 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
80922fbc 10 *
3d396eb1
AK		 11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
80922fbc 15 *
3d396eb1
AK		 16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
80922fbc 20 *
3d396eb1 21 * The full GNU General Public License is included in this distribution
4d21fef4 22 * in the file called "COPYING".
80922fbc 23 *
3d396eb1
AK		 24 */
25
5a0e3ad6 26#include <linux/slab.h>
cb8011ad 27#include <linux/vmalloc.h>
e98e3350 28#include <linux/interrupt.h>
3d396eb1
AK		 29#include "netxen_nic_hw.h"
30
31#include "netxen_nic.h"
3d396eb1 32
1494a814 33#include <linux/dma-mapping.h>
391587c3 34#include <linux/if_vlan.h>
c9bdd4b5 35#include <net/ip.h>
00977784 36#include <linux/ipv6.h>
6598b169 37#include <linux/inetdevice.h>
0531d7b8 38#include <linux/sysfs.h>
e87ad553 39#include <linux/aer.h>
1494a814 40
0438a1b2 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 45
ceded32f 46char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 48 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 49
2956640d
DP		 50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52/* Default to restricted 1G auto-neg mode */
53static int wol_port_mode = 5;
54
55static int use_msi = 1;
56
57static int use_msi_x = 1;
58
afdafff1
SH		 59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 62
3d396eb1 63static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 64 const struct pci_device_id *ent);
3d396eb1
AK		 65static void __devexit netxen_nic_remove(struct pci_dev *pdev);
66static int netxen_nic_open(struct net_device *netdev);
67static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
3d396eb1 70static void netxen_tx_timeout(struct net_device *netdev);
74c520da 71static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 72static void netxen_fw_poll_work(struct work_struct *work);
73static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 76static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void netxen_nic_poll_controller(struct net_device *netdev);
79#endif
fa3ce355
NK		 80
81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 83static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
e87ad553 85static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 86static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
87static int netxen_can_start_firmware(struct netxen_adapter *adapter);
88
1494a814 89static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 90static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 91static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 92
57569d0e
RB		 93static void netxen_free_vlan_ip_list(struct netxen_adapter *);
94static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
47fd428c 95static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
96 struct rtnl_link_stats64 *stats);
7e12bb0a 97static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 98
3d396eb1 99/* PCI Device ID Table */
70081ac5 100#define ENTRY(device) \
040dec3b 101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
a3aa1884 104static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 113 {0,}
114};
115
116MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117
7830b22c
DP		 118static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121};
122
c9fc891f 123void
3ce06a32 124netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 125 struct nx_host_tx_ring *tx_ring)
3176ff3e 126{
195c5f98 127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
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
807540ba 175 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 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 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 341 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
e3feb266
RB		 402#define PCI_CAP_ID_GEN 0x10
403
404static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
405{
406 u32 pdevfuncsave;
407 u32 c8c9value = 0;
408 u32 chicken = 0;
409 u32 control = 0;
410 int i, pos;
411 struct pci_dev *pdev;
412
413 pdev = adapter->pdev;
414
415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
416 /* clear chicken3.25:24 */
417 chicken &= 0xFCFFFFFF;
418 /*
419 * if gen1 and B0, set F1020 - if gen 2, do nothing
420 * if gen2 set to F1000
421 */
422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
423 if (pos == 0xC0) {
424 pci_read_config_dword(pdev, pos + 0x10, &control);
425 if ((control & 0x000F0000) != 0x00020000) {
426 /* set chicken3.24 if gen1 */
427 chicken |= 0x01000000;
428 }
429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
430 c8c9value = 0xF1000;
431 } else {
432 /* set chicken3.24 if gen1 */
433 chicken |= 0x01000000;
434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
435 if (adapter->ahw.revision_id == NX_P3_B0)
436 c8c9value = 0xF1020;
437 else
438 c8c9value = 0;
439 }
440
441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
442
443 if (!c8c9value)
444 return;
445
446 pdevfuncsave = pdev->devfn;
447 if (pdevfuncsave & 0x07)
448 return;
449
450 for (i = 0; i < 8; i++) {
451 pci_read_config_dword(pdev, pos + 8, &control);
452 pci_read_config_dword(pdev, pos + 8, &control);
453 pci_write_config_dword(pdev, pos + 8, c8c9value);
454 pdev->devfn++;
455 }
456 pdev->devfn = pdevfuncsave;
457}
458
2956640d
DP		 459static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
460{
461 u32 control;
462 int pos;
463
464 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
465 if (pos) {
466 pci_read_config_dword(pdev, pos, &control);
467 if (enable)
468 control |= PCI_MSIX_FLAGS_ENABLE;
469 else
470 control = 0;
471 pci_write_config_dword(pdev, pos, control);
472 }
473}
474
be339aee 475static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 476{
477 int i;
478
be339aee 479 for (i = 0; i < count; i++)
2956640d
DP		 480 adapter->msix_entries[i].entry = i;
481}
482
9dc28efe
DP		 483static int
484netxen_read_mac_addr(struct netxen_adapter *adapter)
485{
486 int i;
487 unsigned char *p;
a03d2451 488 u64 mac_addr;
9dc28efe
DP		 489 struct net_device *netdev = adapter->netdev;
490 struct pci_dev *pdev = adapter->pdev;
491
9dc28efe
DP		 492 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
493 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
494 return -EIO;
495 } else {
496 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
497 return -EIO;
498 }
499
500 p = (unsigned char *)&mac_addr;
501 for (i = 0; i < 6; i++)
502 netdev->dev_addr[i] = *(p + 5 - i);
503
504 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
5d09e534 505 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 506
507 /* set station address */
508
e174961c
JB		 509 if (!is_valid_ether_addr(netdev->perm_addr))
510 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 511
512 return 0;
513}
514
7e12bb0a 515static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 516{
517 struct netxen_adapter *adapter = netdev_priv(netdev);
518 struct sockaddr *addr = p;
519
520 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 521 return -EADDRNOTAVAIL;
3d0a3cc9
DP		 522
523 if (netif_running(netdev)) {
524 netif_device_detach(netdev);
525 netxen_napi_disable(adapter);
526 }
527
5d09e534 528 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 529 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
530 adapter->macaddr_set(adapter, addr->sa_data);
531
532 if (netif_running(netdev)) {
533 netif_device_attach(netdev);
534 netxen_napi_enable(adapter);
535 }
536 return 0;
537}
538
1abd266f
SH		 539static void netxen_set_multicast_list(struct net_device *dev)
540{
541 struct netxen_adapter *adapter = netdev_priv(dev);
542
3d0a3cc9 543 adapter->set_multi(dev);
1abd266f
SH		 544}
545
c8f44aff
MM		 546static netdev_features_t netxen_fix_features(struct net_device *dev,
547 netdev_features_t features)
066413da
MM		 548{
549 if (!(features & NETIF_F_RXCSUM)) {
550 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
551
552 features &= ~NETIF_F_LRO;
553 }
554
555 return features;
556}
557
c8f44aff
MM		 558static int netxen_set_features(struct net_device *dev,
559 netdev_features_t features)
066413da
MM		 560{
561 struct netxen_adapter *adapter = netdev_priv(dev);
562 int hw_lro;
563
564 if (!((dev->features ^ features) & NETIF_F_LRO))
565 return 0;
566
567 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
568 : NETXEN_NIC_LRO_DISABLED;
569
570 if (netxen_config_hw_lro(adapter, hw_lro))
571 return -EIO;
572
573 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
574 return -EIO;
575
576 return 0;
577}
578
1abd266f
SH		 579static const struct net_device_ops netxen_netdev_ops = {
580 .ndo_open = netxen_nic_open,
581 .ndo_stop = netxen_nic_close,
582 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 583 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f 584 .ndo_validate_addr = eth_validate_addr,
afc4b13d 585 .ndo_set_rx_mode = netxen_set_multicast_list,
1abd266f
SH		 586 .ndo_set_mac_address = netxen_nic_set_mac,
587 .ndo_change_mtu = netxen_nic_change_mtu,
588 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 589 .ndo_fix_features = netxen_fix_features,
590 .ndo_set_features = netxen_set_features,
1abd266f
SH		 591#ifdef CONFIG_NET_POLL_CONTROLLER
592 .ndo_poll_controller = netxen_nic_poll_controller,
593#endif
594};
595
97daee83
DP		 596static void
597netxen_setup_intr(struct netxen_adapter *adapter)
598{
599 struct netxen_legacy_intr_set *legacy_intrp;
600 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 601 int err, num_msix;
602
603 if (adapter->rss_supported) {
604 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
605 MSIX_ENTRIES_PER_ADAPTER : 2;
606 } else
607 num_msix = 1;
608
609 adapter->max_sds_rings = 1;
97daee83
DP		 610
611 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 612
613 if (adapter->ahw.revision_id >= NX_P3_B0)
614 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615 else
616 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 617
618 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
619 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
620 legacy_intrp->tgt_status_reg);
621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
622 legacy_intrp->tgt_mask_reg);
623 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
624 legacy_intrp->pci_int_reg);
625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626
627 if (adapter->ahw.revision_id >= NX_P3_B1)
628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
629 ISR_INT_STATE_REG);
630 else
631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
632 CRB_INT_VECTOR);
97daee83
DP		 633
634 netxen_set_msix_bit(pdev, 0);
635
636 if (adapter->msix_supported) {
637
be339aee
DP		 638 netxen_init_msix_entries(adapter, num_msix);
639 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
640 if (err == 0) {
641 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
642 netxen_set_msix_bit(pdev, 1);
97daee83 643
be339aee
DP		 644 if (adapter->rss_supported)
645 adapter->max_sds_rings = num_msix;
97daee83 646
be339aee
DP		 647 dev_info(&pdev->dev, "using msi-x interrupts\n");
648 return;
649 }
650
651 if (err > 0)
652 pci_disable_msix(pdev);
653
654 /* fall through for msi */
97daee83 655 }
be339aee
DP		 656
657 if (use_msi && !pci_enable_msi(pdev)) {
658 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 659 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
660 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 661 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 662 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 663 return;
664 }
665
666 dev_info(&pdev->dev, "using legacy interrupts\n");
667 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 668}
669
670static void
671netxen_teardown_intr(struct netxen_adapter *adapter)
672{
673 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
674 pci_disable_msix(adapter->pdev);
675 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
676 pci_disable_msi(adapter->pdev);
677}
678
679static void
680netxen_cleanup_pci_map(struct netxen_adapter *adapter)
681{
682 if (adapter->ahw.db_base != NULL)
683 iounmap(adapter->ahw.db_base);
684 if (adapter->ahw.pci_base0 != NULL)
685 iounmap(adapter->ahw.pci_base0);
686 if (adapter->ahw.pci_base1 != NULL)
687 iounmap(adapter->ahw.pci_base1);
688 if (adapter->ahw.pci_base2 != NULL)
689 iounmap(adapter->ahw.pci_base2);
690}
691
692static int
693netxen_setup_pci_map(struct netxen_adapter *adapter)
694{
97daee83
DP		 695 void __iomem *db_ptr = NULL;
696
71fb62fb 697 resource_size_t mem_base, db_base;
afbe5cd6 698 unsigned long mem_len, db_len = 0;
97daee83
DP		 699
700 struct pci_dev *pdev = adapter->pdev;
701 int pci_func = adapter->ahw.pci_func;
afbe5cd6 702 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 703
704 int err = 0;
705
706 /*
707 * Set the CRB window to invalid. If any register in window 0 is
708 * accessed it should set the window to 0 and then reset it to 1.
709 */
907fa120 710 adapter->ahw.crb_win = -1;
47abe356 711 adapter->ahw.ocm_win = -1;
97daee83
DP		 712
713 /* remap phys address */
714 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
715 mem_len = pci_resource_len(pdev, 0);
97daee83 716
97daee83
DP		 717 /* 128 Meg of memory */
718 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 719
720 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
721 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 722 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 723 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 724 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 725 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
726 ahw->pci_base2 == NULL) {
727 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
728 err = -EIO;
729 goto err_out;
730 }
731
732 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
733
97daee83 734 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 735
736 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
737 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 738 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 739 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
740 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
741 err = -EIO;
742 goto err_out;
743 }
744
97daee83 745 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 746
afbe5cd6
AKS		 747 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
748 if (ahw->pci_base0 == NULL) {
97daee83
DP		 749 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
750 return -EIO;
751 }
afbe5cd6 752 ahw->pci_len0 = mem_len;
97daee83
DP		 753 } else {
754 return -EIO;
755 }
756
195c5f98
AKS		 757 netxen_setup_hwops(adapter);
758
97daee83
DP		 759 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
760
6abb4b83
AKS		 761 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
762 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
763 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
764
765 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 766 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
767 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
768 }
769
97daee83
DP		 770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
771 goto skip_doorbell;
772
773 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
774 db_len = pci_resource_len(pdev, 4);
775
776 if (db_len == 0) {
777 printk(KERN_ERR "%s: doorbell is disabled\n",
778 netxen_nic_driver_name);
779 err = -EIO;
780 goto err_out;
781 }
782
783 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
784 if (!db_ptr) {
785 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
786 netxen_nic_driver_name);
787 err = -EIO;
788 goto err_out;
789 }
790
791skip_doorbell:
792 adapter->ahw.db_base = db_ptr;
793 adapter->ahw.db_len = db_len;
794 return 0;
795
796err_out:
797 netxen_cleanup_pci_map(adapter);
798 return err;
799}
800
2b9e62ee
DP		 801static void
802netxen_check_options(struct netxen_adapter *adapter)
803{
83f18a55 804 u32 fw_major, fw_minor, fw_build, prev_fw_version;
2b9e62ee
DP		 805 char brd_name[NETXEN_MAX_SHORT_NAME];
806 char serial_num[32];
83f18a55 807 int i, offset, val, err;
06d6c108 808 __le32 *ptr32;
2b9e62ee
DP		 809 struct pci_dev *pdev = adapter->pdev;
810
811 adapter->driver_mismatch = 0;
812
06d6c108 813 ptr32 = (__le32 *)&serial_num;
2b9e62ee
DP		 814 offset = NX_FW_SERIAL_NUM_OFFSET;
815 for (i = 0; i < 8; i++) {
816 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
817 dev_err(&pdev->dev, "error reading board info\n");
818 adapter->driver_mismatch = 1;
819 return;
820 }
821 ptr32[i] = cpu_to_le32(val);
822 offset += sizeof(u32);
823 }
824
825 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
826 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
827 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 828 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 829 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
830
83f18a55
M		 831 /* Get FW Mini Coredump template and store it */
832 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
833 if (adapter->mdump.md_template == NULL ||
834 adapter->fw_version > prev_fw_version) {
835 kfree(adapter->mdump.md_template);
836 adapter->mdump.md_template = NULL;
837 err = netxen_setup_minidump(adapter);
838 if (err)
839 dev_err(&adapter->pdev->dev,
840 "Failed to setup minidump rcode = %d\n", err);
841 }
842 }
843
2b9e62ee
DP		 844 if (adapter->portnum == 0) {
845 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
846
c25c0b9b
DP		 847 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
848 module_name(THIS_MODULE),
2b9e62ee
DP		 849 brd_name, serial_num, adapter->ahw.revision_id);
850 }
851
852 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
853 adapter->driver_mismatch = 1;
854 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
855 fw_major, fw_minor, fw_build);
856 return;
857 }
858
859 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
860 i = NXRD32(adapter, NETXEN_SRE_MISC);
861 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
862 }
863
864 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
865 fw_major, fw_minor, fw_build,
866 adapter->ahw.cut_through ? "cut-through" : "legacy");
867
868 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
869 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
870
2b9e62ee
DP		 871 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
872 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
873 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
874 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
875 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
876 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
877 }
878
879 adapter->msix_supported = 0;
880 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
881 adapter->msix_supported = !!use_msi_x;
882 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 883 } else {
884 u32 flashed_ver = 0;
885 netxen_rom_fast_read(adapter,
886 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
887 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
888
889 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
890 switch (adapter->ahw.board_type) {
891 case NETXEN_BRDTYPE_P2_SB31_10G:
892 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
893 adapter->msix_supported = !!use_msi_x;
894 adapter->rss_supported = !!use_msi_x;
895 break;
896 default:
897 break;
898 }
2b9e62ee
DP		 899 }
900 }
901
902 adapter->num_txd = MAX_CMD_DESCRIPTORS;
903
904 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
905 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
906 adapter->max_rds_rings = 3;
907 } else {
908 adapter->num_lro_rxd = 0;
909 adapter->max_rds_rings = 2;
910 }
911}
912
ba599d4f 913static int
6a581e93 914netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 915{
916 int val, err, first_boot;
917 struct pci_dev *pdev = adapter->pdev;
918
2b9e62ee
DP		 919 /* required for NX2031 dummy dma */
920 err = nx_set_dma_mask(adapter);
921 if (err)
922 return err;
923
83f18a55
M		 924 err = netxen_can_start_firmware(adapter);
925
926 if (err < 0)
927 return err;
928
929 if (!err)
96f2ebd2 930 goto wait_init;
0b72e659 931
f98a9f69 932 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 933
934 err = netxen_check_hw_init(adapter, first_boot);
935 if (err) {
936 dev_err(&pdev->dev, "error in init HW init sequence\n");
937 return err;
938 }
939
6a581e93 940 netxen_request_firmware(adapter);
f7185c71 941
67c38fc6 942 err = netxen_need_fw_reset(adapter);
1dbc84a7 943 if (err < 0)
db4cfd8a 944 goto err_out;
1dbc84a7 945 if (err == 0)
e3feb266 946 goto pcie_strap_init;
67c38fc6 947
ba599d4f 948 if (first_boot != 0x55555555) {
f98a9f69 949 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 950 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 951 msleep(1);
952 }
567c6c4e 953
f98a9f69 954 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 955 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
956 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
957
567c6c4e
DP		 958 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
959 netxen_set_port_mode(adapter);
960
db4cfd8a
DP		 961 err = netxen_load_firmware(adapter);
962 if (err)
963 goto err_out;
ba599d4f 964
6a581e93
DP		 965 netxen_release_firmware(adapter);
966
ba599d4f
DP		 967 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
968
969 /* Initialize multicast addr pool owners */
970 val = 0x7654;
1e2d0059 971 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 972 val |= 0x0f000000;
f98a9f69 973 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 974
975 }
976
83ac51fa 977 err = netxen_init_dummy_dma(adapter);
ba599d4f 978 if (err)
db4cfd8a 979 goto err_out;
ba599d4f
DP		 980
981 /*
982 * Tell the hardware our version number.
983 */
984 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
985 | ((_NETXEN_NIC_LINUX_MINOR << 8))
986 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 987 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 988
e3feb266
RB		 989pcie_strap_init:
990 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
991 netxen_pcie_strap_init(adapter);
992
96f2ebd2 993wait_init:
ba599d4f
DP		 994 /* Handshake with the card before we register the devices. */
995 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
996 if (err) {
83ac51fa 997 netxen_free_dummy_dma(adapter);
db4cfd8a 998 goto err_out;
ba599d4f
DP		 999 }
1000
8f9b3f69
AKS		 1001 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1002
68b3cae0
DP		 1003 nx_update_dma_mask(adapter);
1004
6a581e93 1005 netxen_check_options(adapter);
68b3cae0 1006
74c520da
AKS		 1007 adapter->need_fw_reset = 0;
1008
ec5c50cb 1009 /* fall through and release firmware */
db4cfd8a
DP		 1010
1011err_out:
1012 netxen_release_firmware(adapter);
1013 return err;
ba599d4f
DP		 1014}
1015
9f5bc7f1
DP		 1016static int
1017netxen_nic_request_irq(struct netxen_adapter *adapter)
1018{
1019 irq_handler_t handler;
d8b100c5
DP		 1020 struct nx_host_sds_ring *sds_ring;
1021 int err, ring;
1022
ab392d2d 1023 unsigned long flags = 0;
9f5bc7f1 1024 struct net_device *netdev = adapter->netdev;
d8b100c5 1025 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1026
9f5bc7f1
DP		 1027 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1028 handler = netxen_msix_intr;
1029 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1030 handler = netxen_msi_intr;
1031 else {
1032 flags |= IRQF_SHARED;
1033 handler = netxen_intr;
1034 }
1035 adapter->irq = netdev->irq;
1036
d8b100c5
DP		 1037 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1038 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1039 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1040 err = request_irq(sds_ring->irq, handler,
1041 flags, sds_ring->name, sds_ring);
1042 if (err)
1043 return err;
1044 }
1045
1046 return 0;
1047}
1048
1049static void
1050netxen_nic_free_irq(struct netxen_adapter *adapter)
1051{
1052 int ring;
1053 struct nx_host_sds_ring *sds_ring;
1054
1055 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1056
1057 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1058 sds_ring = &recv_ctx->sds_rings[ring];
1059 free_irq(sds_ring->irq, sds_ring);
1060 }
9f5bc7f1
DP		 1061}
1062
ca2ef330
DP		 1063static void
1064netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1065{
1066 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1067 adapter->coal.normal.data.rx_time_us =
1068 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1069 adapter->coal.normal.data.rx_packets =
1070 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1071 adapter->coal.normal.data.tx_time_us =
1072 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1073 adapter->coal.normal.data.tx_packets =
1074 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1075}
1076
6f771419 1077/* with rtnl_lock */
9f5bc7f1 1078static int
6f771419 1079__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1080{
1081 int err;
1082
db4cfd8a
DP		 1083 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1084 return -EIO;
1085
9f5bc7f1
DP		 1086 err = adapter->init_port(adapter, adapter->physical_port);
1087 if (err) {
1088 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1089 netxen_nic_driver_name, adapter->portnum);
1090 return err;
1091 }
3d0a3cc9 1092 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1093 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1094
3d0a3cc9
DP		 1095 adapter->set_multi(netdev);
1096 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1097
1098 adapter->ahw.linkup = 0;
9f5bc7f1 1099
d8b100c5
DP		 1100 if (adapter->max_sds_rings > 1)
1101 netxen_config_rss(adapter, 1);
9f5bc7f1 1102
ca2ef330
DP		 1103 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1104 netxen_config_intr_coalesce(adapter);
1105
e4baaf71 1106 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1107 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1108
b2af9cb0
DP		 1109 netxen_napi_enable(adapter);
1110
5103c9f7 1111 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1112 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1113 else
1114 netxen_nic_set_link_parameters(adapter);
1115
6a581e93 1116 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1117 return 0;
1118}
1119
6f771419
AKS		 1120/* Usage: During resume and firmware recovery module.*/
1121
1122static inline int
1123netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1124{
1125 int err = 0;
1126
1127 rtnl_lock();
1128 if (netif_running(netdev))
1129 err = __netxen_nic_up(adapter, netdev);
1130 rtnl_unlock();
1131
1132 return err;
1133}
1134
1135/* with rtnl_lock */
9f5bc7f1 1136static void
6f771419 1137__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1138{
db4cfd8a
DP		 1139 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1140 return;
1141
f2251f66
AKS		 1142 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1143 return;
6a581e93 1144
f2251f66 1145 smp_mb();
b2af9cb0 1146 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1147 netif_carrier_off(netdev);
b2af9cb0 1148 netif_tx_disable(netdev);
9f5bc7f1 1149
d478af0d
SC		 1150 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1151 netxen_linkevent_request(adapter, 0);
1152
9f5bc7f1
DP		 1153 if (adapter->stop_port)
1154 adapter->stop_port(adapter);
1155
5cf4d323
DP		 1156 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1157 netxen_p3_free_mac_list(adapter);
1158
22b5794b
AKS		 1159 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1160
be339aee
DP		 1161 netxen_napi_disable(adapter);
1162
9f5bc7f1 1163 netxen_release_tx_buffers(adapter);
b2af9cb0 1164 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1165}
1166
6f771419
AKS		 1167/* Usage: During suspend and firmware recovery module */
1168
1169static inline void
1170netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1171{
1172 rtnl_lock();
1173 if (netif_running(netdev))
1174 __netxen_nic_down(adapter, netdev);
1175 rtnl_unlock();
1176
1177}
9f5bc7f1
DP		 1178
1179static int
1180netxen_nic_attach(struct netxen_adapter *adapter)
1181{
1182 struct net_device *netdev = adapter->netdev;
1183 struct pci_dev *pdev = adapter->pdev;
becf46a0 1184 int err, ring;
d8b100c5 1185 struct nx_host_rds_ring *rds_ring;
d877f1e3 1186 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1187
7042cd8f
AKS		 1188 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1189 return 0;
1190
9f5bc7f1 1191 err = netxen_init_firmware(adapter);
232e7d68
DP		 1192 if (err)
1193 return err;
1194
1195 err = netxen_napi_add(adapter, netdev);
1196 if (err)
1197 return err;
9f5bc7f1 1198
9f5bc7f1
DP		 1199 err = netxen_alloc_sw_resources(adapter);
1200 if (err) {
1201 printk(KERN_ERR "%s: Error in setting sw resources\n",
1202 netdev->name);
1203 return err;
1204 }
1205
9f5bc7f1
DP		 1206 err = netxen_alloc_hw_resources(adapter);
1207 if (err) {
1208 printk(KERN_ERR "%s: Error in setting hw resources\n",
1209 netdev->name);
1210 goto err_out_free_sw;
1211 }
1212
4f96b988 1213 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1214 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1215 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1216 crb_cmd_producer[adapter->portnum]);
1217 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1218 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1219
cb2107be
DP		 1220 tx_ring->producer = 0;
1221 tx_ring->sw_consumer = 0;
1222
1223 netxen_nic_update_cmd_producer(adapter, tx_ring);
1224 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1225 }
1226
d8b100c5
DP		 1227 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1228 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1229 netxen_post_rx_buffers(adapter, ring, rds_ring);
1230 }
9f5bc7f1
DP		 1231
1232 err = netxen_nic_request_irq(adapter);
1233 if (err) {
1234 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1235 netdev->name);
1236 goto err_out_free_rxbuf;
1237 }
1238
ca2ef330
DP		 1239 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1240 netxen_nic_init_coalesce_defaults(adapter);
1241
fa3ce355
NK		 1242 netxen_create_sysfs_entries(adapter);
1243
9f5bc7f1
DP		 1244 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1245 return 0;
1246
1247err_out_free_rxbuf:
1248 netxen_release_rx_buffers(adapter);
1249 netxen_free_hw_resources(adapter);
1250err_out_free_sw:
1251 netxen_free_sw_resources(adapter);
1252 return err;
1253}
1254
1255static void
1256netxen_nic_detach(struct netxen_adapter *adapter)
1257{
7042cd8f
AKS		 1258 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1259 return;
1260
fa3ce355
NK		 1261 netxen_remove_sysfs_entries(adapter);
1262
9f5bc7f1 1263 netxen_free_hw_resources(adapter);
cf981ffb 1264 netxen_release_rx_buffers(adapter);
be339aee 1265 netxen_nic_free_irq(adapter);
232e7d68 1266 netxen_napi_del(adapter);
9f5bc7f1
DP		 1267 netxen_free_sw_resources(adapter);
1268
1269 adapter->is_up = 0;
1270}
1271
7042cd8f
AKS		 1272int
1273netxen_nic_reset_context(struct netxen_adapter *adapter)
1274{
1275 int err = 0;
1276 struct net_device *netdev = adapter->netdev;
1277
6a581e93
DP		 1278 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1279 return -EBUSY;
1280
7042cd8f
AKS		 1281 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1282
6a581e93
DP		 1283 netif_device_detach(netdev);
1284
7042cd8f 1285 if (netif_running(netdev))
6f771419 1286 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1287
1288 netxen_nic_detach(adapter);
1289
6a581e93
DP		 1290 if (netif_running(netdev)) {
1291 err = netxen_nic_attach(adapter);
1292 if (!err)
6f771419 1293 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1294
6a581e93
DP		 1295 if (err)
1296 goto done;
1297 }
1298
1299 netif_device_attach(netdev);
7042cd8f 1300 }
6a581e93 1301
7042cd8f 1302done:
6a581e93 1303 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1304 return err;
1305}
1306
f17443f4
DP		 1307static int
1308netxen_setup_netdev(struct netxen_adapter *adapter,
1309 struct net_device *netdev)
1310{
1311 int err = 0;
1312 struct pci_dev *pdev = adapter->pdev;
1313
f17443f4
DP		 1314 adapter->mc_enabled = 0;
1315 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1316 adapter->max_mc_count = 38;
1317 else
1318 adapter->max_mc_count = 16;
1319
1320 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1321 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1322
1323 netxen_nic_change_mtu(netdev, netdev->mtu);
1324
1325 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1326
066413da
MM		 1327 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1328 NETIF_F_RXCSUM;
f17443f4 1329
066413da
MM		 1330 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1331 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1332
1333 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1334
1335 if (adapter->pci_using_dac) {
1336 netdev->features |= NETIF_F_HIGHDMA;
1337 netdev->vlan_features |= NETIF_F_HIGHDMA;
1338 }
1339
028afe71 1340 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
066413da 1341 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
028afe71 1342
1bb482f8 1343 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1344 netdev->hw_features |= NETIF_F_LRO;
1345
1346 netdev->features |= netdev->hw_features;
1bb482f8 1347
f17443f4
DP		 1348 netdev->irq = adapter->msix_entries[0].vector;
1349
74c520da 1350 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1351
1352 if (netxen_read_mac_addr(adapter))
1353 dev_warn(&pdev->dev, "failed to read mac addr\n");
1354
1355 netif_carrier_off(netdev);
f17443f4
DP		 1356
1357 err = register_netdev(netdev);
1358 if (err) {
1359 dev_err(&pdev->dev, "failed to register net device\n");
1360 return err;
1361 }
1362
1363 return 0;
1364}
1365
dce87b96 1366#ifdef CONFIG_PCIEAER
1367static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1368{
1369 struct pci_dev *pdev = adapter->pdev;
1370 struct pci_dev *root = pdev->bus->self;
1371 u32 aer_pos;
1372
1373 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1374 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1375 return;
1376
1377 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1378 return;
1379
1380 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1381 if (!aer_pos)
1382 return;
1383
1384 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1385}
1386#endif
1387
3d396eb1
AK		 1388static int __devinit
1389netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1390{
1391 struct net_device *netdev = NULL;
1392 struct netxen_adapter *adapter = NULL;
2956640d 1393 int i = 0, err;
3176ff3e 1394 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1395 uint8_t revision_id;
5a6f95e6 1396 u32 val;
3d396eb1 1397
688328c7
EB		 1398 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1399 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1400 "will not be enabled.\n",
c25c0b9b 1401 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1402 return -ENODEV;
1403 }
1404
3d396eb1
AK		 1405 if ((err = pci_enable_device(pdev)))
1406 return err;
2956640d 1407
3d396eb1
AK		 1408 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1409 err = -ENODEV;
1410 goto err_out_disable_pdev;
1411 }
1412
1413 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1414 goto err_out_disable_pdev;
1415
e87ad553
AKS		 1416 if (NX_IS_REVISION_P3(pdev->revision))
1417 pci_enable_pcie_error_reporting(pdev);
1418
3d396eb1 1419 pci_set_master(pdev);
3176ff3e
MT		 1420
1421 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1422 if(!netdev) {
f17443f4 1423 err = -ENOMEM;
3176ff3e
MT		 1424 goto err_out_free_res;
1425 }
1426
3176ff3e
MT		 1427 SET_NETDEV_DEV(netdev, &pdev->dev);
1428
4cf1653a 1429 adapter = netdev_priv(netdev);
2956640d
DP		 1430 adapter->netdev = netdev;
1431 adapter->pdev = pdev;
13ba9c77 1432 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1433
1434 revision_id = pdev->revision;
1435 adapter->ahw.revision_id = revision_id;
1436
f03b0ebd
DP		 1437 rwlock_init(&adapter->ahw.crb_lock);
1438 spin_lock_init(&adapter->ahw.mem_lock);
1439
d8b100c5 1440 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1441 INIT_LIST_HEAD(&adapter->mac_list);
57569d0e 1442 INIT_LIST_HEAD(&adapter->vlan_ip_list);
3ce06a32 1443
97daee83
DP		 1444 err = netxen_setup_pci_map(adapter);
1445 if (err)
6c80b18d 1446 goto err_out_free_netdev;
3d396eb1 1447
2d1a3bbd 1448 /* This will be reset for mezz cards */
3176ff3e 1449 adapter->portnum = pci_func_id;
3176ff3e 1450
f17443f4
DP		 1451 err = netxen_nic_get_board_info(adapter);
1452 if (err) {
1453 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1454 goto err_out_iounmap;
1455 }
6c80b18d 1456
dce87b96 1457#ifdef CONFIG_PCIEAER
1458 netxen_mask_aer_correctable(adapter);
1459#endif
1460
13ba9c77 1461 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1462 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1463 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1464 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1465 if (pci_func_id >= 2)
13ba9c77 1466 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1467 break;
1468 default:
1469 break;
1470 }
13ba9c77 1471
e933d019
AKS		 1472 err = netxen_check_flash_fw_compatibility(adapter);
1473 if (err)
1474 goto err_out_iounmap;
1475
5a6f95e6
RB		 1476 if (adapter->portnum == 0) {
1477 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1478 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1479 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1480 adapter->need_fw_reset = 1;
1481 }
1482 }
1483
6a581e93 1484 err = netxen_start_firmware(adapter);
0b72e659 1485 if (err)
8f9b3f69 1486 goto err_out_decr_ref;
f17443f4 1487
3d396eb1 1488 /*
6c80b18d 1489 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1490 */
dcd56fdb 1491 adapter->physical_port = adapter->portnum;
4f96b988 1492 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1493 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1494 if (i != 0x55555555)
1495 adapter->physical_port = i;
1496 }
6c80b18d 1497
6a581e93 1498 netxen_nic_clear_stats(adapter);
2956640d 1499
97daee83 1500 netxen_setup_intr(adapter);
2956640d 1501
f17443f4 1502 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1503 if (err)
2956640d 1504 goto err_out_disable_msi;
6c80b18d
MT		 1505
1506 pci_set_drvdata(pdev, adapter);
3d396eb1 1507
6a581e93
DP		 1508 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1509
1e2d0059 1510 switch (adapter->ahw.port_type) {
2956640d
DP		 1511 case NETXEN_NIC_GBE:
1512 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1513 adapter->netdev->name);
1514 break;
1515 case NETXEN_NIC_XGBE:
1516 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1517 adapter->netdev->name);
1518 break;
3d396eb1 1519 }
3d396eb1 1520
70f9cf89
DP		 1521 netxen_create_diag_entries(adapter);
1522
2956640d
DP		 1523 return 0;
1524
1525err_out_disable_msi:
97daee83 1526 netxen_teardown_intr(adapter);
6c80b18d 1527
83ac51fa 1528 netxen_free_dummy_dma(adapter);
3d396eb1 1529
8f9b3f69 1530err_out_decr_ref:
6a581e93
DP		 1531 nx_decr_dev_ref_cnt(adapter);
1532
2956640d 1533err_out_iounmap:
97daee83 1534 netxen_cleanup_pci_map(adapter);
cb8011ad 1535
6c80b18d
MT		 1536err_out_free_netdev:
1537 free_netdev(netdev);
1538
1539err_out_free_res:
3d396eb1 1540 pci_release_regions(pdev);
6c80b18d
MT		 1541
1542err_out_disable_pdev:
2956640d 1543 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1544 pci_disable_device(pdev);
1545 return err;
1546}
1547
83f18a55
M		 1548static
1549void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1550{
1551 kfree(adapter->mdump.md_template);
1552 adapter->mdump.md_template = NULL;
1553
1554 if (adapter->mdump.md_capture_buff) {
1555 vfree(adapter->mdump.md_capture_buff);
1556 adapter->mdump.md_capture_buff = NULL;
1557 }
1558}
1559
3d396eb1
AK		 1560static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1561{
1562 struct netxen_adapter *adapter;
3176ff3e 1563 struct net_device *netdev;
3d396eb1 1564
6c80b18d 1565 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1566 if (adapter == NULL)
1567 return;
1568
6c80b18d
MT		 1569 netdev = adapter->netdev;
1570
6a581e93
DP		 1571 netxen_cancel_fw_work(adapter);
1572
96acb6eb
DP		 1573 unregister_netdev(netdev);
1574
e424fa9d
AKS		 1575 cancel_work_sync(&adapter->tx_timeout_task);
1576
57569d0e 1577 netxen_free_vlan_ip_list(adapter);
7042cd8f 1578 netxen_nic_detach(adapter);
3d396eb1 1579
6a581e93
DP		 1580 nx_decr_dev_ref_cnt(adapter);
1581
439b454e 1582 if (adapter->portnum == 0)
83ac51fa 1583 netxen_free_dummy_dma(adapter);
96acb6eb 1584
6a581e93
DP		 1585 clear_bit(__NX_RESETTING, &adapter->state);
1586
97daee83 1587 netxen_teardown_intr(adapter);
3052246c 1588
70f9cf89
DP		 1589 netxen_remove_diag_entries(adapter);
1590
97daee83 1591 netxen_cleanup_pci_map(adapter);
595e3fb8 1592
f7185c71
DP		 1593 netxen_release_firmware(adapter);
1594
83f18a55
M		 1595 if (NX_IS_REVISION_P3(pdev->revision)) {
1596 netxen_cleanup_minidump(adapter);
e87ad553 1597 pci_disable_pcie_error_reporting(pdev);
83f18a55 1598 }
e87ad553 1599
595e3fb8 1600 pci_release_regions(pdev);
3052246c 1601 pci_disable_device(pdev);
595e3fb8
MT		 1602 pci_set_drvdata(pdev, NULL);
1603
6c80b18d 1604 free_netdev(netdev);
3d396eb1 1605}
e87ad553
AKS		 1606
1607static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1608{
0b72e659
DP		 1609 struct net_device *netdev = adapter->netdev;
1610
1611 netif_device_detach(netdev);
1612
6a581e93
DP		 1613 netxen_cancel_fw_work(adapter);
1614
0b72e659
DP		 1615 if (netif_running(netdev))
1616 netxen_nic_down(adapter, netdev);
1617
e424fa9d
AKS		 1618 cancel_work_sync(&adapter->tx_timeout_task);
1619
7042cd8f 1620 netxen_nic_detach(adapter);
0b72e659 1621
22b5794b
AKS		 1622 if (adapter->portnum == 0)
1623 netxen_free_dummy_dma(adapter);
1624
6a581e93
DP		 1625 nx_decr_dev_ref_cnt(adapter);
1626
1627 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1628}
0b72e659 1629
e87ad553 1630static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1631{
1632 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1633 struct net_device *netdev = adapter->netdev;
1634 int err;
1635
0b72e659
DP		 1636 err = pci_enable_device(pdev);
1637 if (err)
1638 return err;
1639
bc86fcba
AKS		 1640 pci_set_power_state(pdev, PCI_D0);
1641 pci_set_master(pdev);
1642 pci_restore_state(pdev);
1643
907fa120 1644 adapter->ahw.crb_win = -1;
47abe356 1645 adapter->ahw.ocm_win = -1;
0b72e659 1646
6a581e93 1647 err = netxen_start_firmware(adapter);
0b72e659
DP		 1648 if (err) {
1649 dev_err(&pdev->dev, "failed to start firmware\n");
1650 return err;
1651 }
1652
1653 if (netif_running(netdev)) {
1654 err = netxen_nic_attach(adapter);
1655 if (err)
6a581e93 1656 goto err_out;
0b72e659
DP		 1657
1658 err = netxen_nic_up(adapter, netdev);
1659 if (err)
6a581e93 1660 goto err_out_detach;
0b72e659 1661
57569d0e 1662 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1663 }
1664
bc86fcba 1665 netif_device_attach(netdev);
6a581e93 1666 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1667 return 0;
6a581e93
DP		 1668
1669err_out_detach:
1670 netxen_nic_detach(adapter);
1671err_out:
1672 nx_decr_dev_ref_cnt(adapter);
1673 return err;
0b72e659 1674}
e87ad553
AKS		 1675
1676static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1677 pci_channel_state_t state)
1678{
1679 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1680
1681 if (state == pci_channel_io_perm_failure)
1682 return PCI_ERS_RESULT_DISCONNECT;
1683
1684 if (nx_dev_request_aer(adapter))
1685 return PCI_ERS_RESULT_RECOVERED;
1686
1687 netxen_nic_detach_func(adapter);
1688
1689 pci_disable_device(pdev);
1690
1691 return PCI_ERS_RESULT_NEED_RESET;
1692}
1693
1694static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1695{
1696 int err = 0;
1697
1698 err = netxen_nic_attach_func(pdev);
1699
1700 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1701}
1702
1703static void netxen_io_resume(struct pci_dev *pdev)
1704{
1705 pci_cleanup_aer_uncorrect_error_status(pdev);
1706}
1707
1708static void netxen_nic_shutdown(struct pci_dev *pdev)
1709{
1710 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1711
1712 netxen_nic_detach_func(adapter);
1713
1714 if (pci_save_state(pdev))
1715 return;
1716
1717 if (netxen_nic_wol_supported(adapter)) {
1718 pci_enable_wake(pdev, PCI_D3cold, 1);
1719 pci_enable_wake(pdev, PCI_D3hot, 1);
1720 }
1721
1722 pci_disable_device(pdev);
1723}
1724
1725#ifdef CONFIG_PM
1726static int
1727netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1728{
1729 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1730 int retval;
1731
1732 netxen_nic_detach_func(adapter);
1733
1734 retval = pci_save_state(pdev);
1735 if (retval)
1736 return retval;
1737
1738 if (netxen_nic_wol_supported(adapter)) {
1739 pci_enable_wake(pdev, PCI_D3cold, 1);
1740 pci_enable_wake(pdev, PCI_D3hot, 1);
1741 }
1742
1743 pci_disable_device(pdev);
1744 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1745
1746 return 0;
1747}
1748
1749static int
1750netxen_nic_resume(struct pci_dev *pdev)
1751{
1752 return netxen_nic_attach_func(pdev);
1753}
01542cd1 1754#endif
0b72e659 1755
3d396eb1
AK		 1756static int netxen_nic_open(struct net_device *netdev)
1757{
4cf1653a 1758 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1759 int err = 0;
3d396eb1 1760
dcd56fdb
DP		 1761 if (adapter->driver_mismatch)
1762 return -EIO;
1763
7042cd8f
AKS		 1764 err = netxen_nic_attach(adapter);
1765 if (err)
1766 return err;
2956640d 1767
6f771419 1768 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1769 if (err)
1770 goto err_out;
05aaa02d 1771
dcd56fdb 1772 netif_start_queue(netdev);
3d396eb1
AK		 1773
1774 return 0;
2956640d 1775
9f5bc7f1
DP		 1776err_out:
1777 netxen_nic_detach(adapter);
2956640d 1778 return err;
3d396eb1
AK		 1779}
1780
1781/*
1782 * netxen_nic_close - Disables a network interface entry point
1783 */
1784static int netxen_nic_close(struct net_device *netdev)
1785{
3176ff3e 1786 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1787
6f771419 1788 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1789 return 0;
1790}
1791
1bcfd790
DP		 1792static void
1793netxen_tso_check(struct net_device *netdev,
1794 struct nx_host_tx_ring *tx_ring,
1795 struct cmd_desc_type0 *first_desc,
1796 struct sk_buff *skb)
cd1f8160 1797{
391587c3 1798 u8 opcode = TX_ETHER_PKT;
cdff1036 1799 __be16 protocol = skb->protocol;
028afe71 1800 u16 flags = 0, vid = 0;
1bcfd790 1801 u32 producer;
028afe71 1802 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1803 struct cmd_desc_type0 *hwdesc;
028afe71 1804 struct vlan_ethhdr *vh;
cdff1036 1805
09640e63 1806 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1807
1808 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1809 protocol = vh->h_vlan_encapsulated_proto;
1810 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1811
1812 } else if (vlan_tx_tag_present(skb)) {
1813
1814 flags = FLAGS_VLAN_OOB;
1815 vid = vlan_tx_tag_get(skb);
1816 netxen_set_tx_vlan_tci(first_desc, vid);
1817 vlan_oob = 1;
cdff1036 1818 }
cd1f8160 1819
391587c3
DP		 1820 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1821 skb_shinfo(skb)->gso_size > 0) {
1822
1bcfd790
DP		 1823 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1824
1825 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1826 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1827 if (vlan_oob) {
1828 first_desc->total_hdr_length += VLAN_HLEN;
1829 first_desc->tcp_hdr_offset = VLAN_HLEN;
1830 first_desc->ip_hdr_offset = VLAN_HLEN;
1831 /* Only in case of TSO on vlan device */
1832 flags |= FLAGS_VLAN_TAGGED;
1833 }
391587c3 1834
09640e63 1835 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1836 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1837 tso = 1;
cd1f8160
DP		 1838
1839 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1840 u8 l4proto;
1841
09640e63 1842 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1843 l4proto = ip_hdr(skb)->protocol;
1844
1845 if (l4proto == IPPROTO_TCP)
1846 opcode = TX_TCP_PKT;
1847 else if(l4proto == IPPROTO_UDP)
1848 opcode = TX_UDP_PKT;
09640e63 1849 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1850 l4proto = ipv6_hdr(skb)->nexthdr;
1851
1852 if (l4proto == IPPROTO_TCP)
1853 opcode = TX_TCPV6_PKT;
1854 else if(l4proto == IPPROTO_UDP)
1855 opcode = TX_UDPV6_PKT;
1856 }
cd1f8160 1857 }
028afe71
DP		 1858
1859 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1860 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1861 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1862
1863 if (!tso)
1864 return;
1865
1866 /* For LSO, we need to copy the MAC/IP/TCP headers into
1867 * the descriptor ring
1868 */
1869 producer = tx_ring->producer;
1870 copied = 0;
1871 offset = 2;
1872
028afe71
DP		 1873 if (vlan_oob) {
1874 /* Create a TSO vlan header template for firmware */
1875
1876 hwdesc = &tx_ring->desc_head[producer];
1877 tx_ring->cmd_buf_arr[producer].skb = NULL;
1878
1879 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1880 hdr_len + VLAN_HLEN);
1881
1882 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1883 skb_copy_from_linear_data(skb, vh, 12);
1884 vh->h_vlan_proto = htons(ETH_P_8021Q);
1885 vh->h_vlan_TCI = htons(vid);
1886 skb_copy_from_linear_data_offset(skb, 12,
1887 (char *)vh + 16, copy_len - 16);
1888
545eb370 1889 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1890 offset = 0;
1891
1892 producer = get_next_index(producer, tx_ring->num_desc);
1893 }
1894
1bcfd790
DP		 1895 while (copied < hdr_len) {
1896
1897 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1898 (hdr_len - copied));
1899
1900 hwdesc = &tx_ring->desc_head[producer];
1901 tx_ring->cmd_buf_arr[producer].skb = NULL;
1902
1903 skb_copy_from_linear_data_offset(skb, copied,
1904 (char *)hwdesc + offset, copy_len);
1905
1906 copied += copy_len;
1907 offset = 0;
1908
1909 producer = get_next_index(producer, tx_ring->num_desc);
1910 }
1911
1912 tx_ring->producer = producer;
1913 barrier();
cd1f8160
DP		 1914}
1915
ce644ed4
DP		 1916static int
1917netxen_map_tx_skb(struct pci_dev *pdev,
1918 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1919{
ce644ed4
DP		 1920 struct netxen_skb_frag *nf;
1921 struct skb_frag_struct *frag;
1922 int i, nr_frags;
1923 dma_addr_t map;
1924
1925 nr_frags = skb_shinfo(skb)->nr_frags;
1926 nf = &pbuf->frag_array[0];
1927
1928 map = pci_map_single(pdev, skb->data,
1929 skb_headlen(skb), PCI_DMA_TODEVICE);
1930 if (pci_dma_mapping_error(pdev, map))
1931 goto out_err;
6f703406 1932
ce644ed4
DP		 1933 nf->dma = map;
1934 nf->length = skb_headlen(skb);
1935
1936 for (i = 0; i < nr_frags; i++) {
1937 frag = &skb_shinfo(skb)->frags[i];
1938 nf = &pbuf->frag_array[i+1];
1939
9e903e08 1940 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 1941 DMA_TO_DEVICE);
1942 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 1943 goto unwind;
1944
1945 nf->dma = map;
9e903e08 1946 nf->length = skb_frag_size(frag);
ce644ed4
DP		 1947 }
1948
1949 return 0;
6f703406 1950
ce644ed4 1951unwind:
cf503e8f
DP		 1952 while (--i >= 0) {
1953 nf = &pbuf->frag_array[i+1];
ce644ed4 1954 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1955 }
ce644ed4
DP		 1956
1957 nf = &pbuf->frag_array[0];
1958 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1959
1960out_err:
1961 return -ENOMEM;
6f703406
DP		 1962}
1963
d32cc3d2
DP		 1964static inline void
1965netxen_clear_cmddesc(u64 *desc)
1966{
1bcfd790
DP		 1967 desc[0] = 0ULL;
1968 desc[2] = 0ULL;
d32cc3d2
DP		 1969}
1970
61357325 1971static netdev_tx_t
d32cc3d2 1972netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1973{
3176ff3e 1974 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1975 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1976 struct netxen_cmd_buffer *pbuf;
3d396eb1 1977 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1978 struct cmd_desc_type0 *hwdesc, *first_desc;
1979 struct pci_dev *pdev;
391587c3 1980 int i, k;
c968bdf6 1981 int delta = 0;
1982 struct skb_frag_struct *frag;
3d396eb1 1983
cb2107be 1984 u32 producer;
ce644ed4 1985 int frag_count, no_of_desc;
d877f1e3 1986 u32 num_txd = tx_ring->num_desc;
3d396eb1 1987
3d396eb1
AK		 1988 frag_count = skb_shinfo(skb)->nr_frags + 1;
1989
c968bdf6 1990 /* 14 frags supported for normal packet and
1991 * 32 frags supported for TSO packet
1992 */
1993 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
1994
1995 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
1996 frag = &skb_shinfo(skb)->frags[i];
9e903e08 1997 delta += skb_frag_size(frag);
c968bdf6 1998 }
1999
2000 if (!__pskb_pull_tail(skb, delta))
2001 goto drop_packet;
2002
2003 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2004 }
d877f1e3 2005 /* 4 fragments per cmd des */
3d396eb1 2006 no_of_desc = (frag_count + 3) >> 2;
53a01e00 2007
7a9905e6 2008 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2009 netif_stop_queue(netdev);
7a9905e6
RB		 2010 smp_mb();
2011 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2012 netif_start_queue(netdev);
2013 else
2014 return NETDEV_TX_BUSY;
53a01e00 2015 }
3d396eb1 2016
cb2107be 2017 producer = tx_ring->producer;
ce644ed4 2018 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2019
1bcfd790 2020 pdev = adapter->pdev;
391587c3 2021
ce644ed4 2022 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2023 goto drop_packet;
391587c3 2024
3d396eb1 2025 pbuf->skb = skb;
3d396eb1 2026 pbuf->frag_count = frag_count;
6f703406 2027
1bcfd790
DP		 2028 first_desc = hwdesc = &tx_ring->desc_head[producer];
2029 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2030
ce644ed4
DP		 2031 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2032 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2033
ce644ed4 2034 for (i = 0; i < frag_count; i++) {
3d396eb1 2035
ce644ed4
DP		 2036 k = i % 4;
2037
2038 if ((k == 0) && (i > 0)) {
2039 /* move to next desc.*/
ba53e6b4 2040 producer = get_next_index(producer, num_txd);
d877f1e3 2041 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2042 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2043 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2044 }
3d396eb1 2045
ce644ed4 2046 buffrag = &pbuf->frag_array[i];
3d396eb1 2047
ce644ed4 2048 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2049 switch (k) {
2050 case 0:
ce644ed4 2051 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2052 break;
2053 case 1:
ce644ed4 2054 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2055 break;
2056 case 2:
ce644ed4 2057 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2058 break;
2059 case 3:
ce644ed4 2060 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2061 break;
2062 }
3d396eb1 2063 }
ce644ed4 2064
1bcfd790 2065 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2066
1bcfd790 2067 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2068
1bcfd790 2069 adapter->stats.txbytes += skb->len;
ba53e6b4 2070 adapter->stats.xmitcalled++;
3d396eb1 2071
c82b9d7f
ED		 2072 netxen_nic_update_cmd_producer(adapter, tx_ring);
2073
3d396eb1 2074 return NETDEV_TX_OK;
6f703406
DP		 2075
2076drop_packet:
2077 adapter->stats.txdropped++;
2078 dev_kfree_skb_any(skb);
2079 return NETDEV_TX_OK;
3d396eb1
AK		 2080}
2081
a97342f9
DP		 2082static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2083{
2084 struct net_device *netdev = adapter->netdev;
2085 uint32_t temp, temp_state, temp_val;
2086 int rv = 0;
2087
f98a9f69 2088 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2089
2090 temp_state = nx_get_temp_state(temp);
2091 temp_val = nx_get_temp_val(temp);
2092
2093 if (temp_state == NX_TEMP_PANIC) {
2094 printk(KERN_ALERT
2095 "%s: Device temperature %d degrees C exceeds"
2096 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2097 netdev->name, temp_val);
a97342f9
DP		 2098 rv = 1;
2099 } else if (temp_state == NX_TEMP_WARN) {
2100 if (adapter->temp == NX_TEMP_NORMAL) {
2101 printk(KERN_ALERT
2102 "%s: Device temperature %d degrees C "
2103 "exceeds operating range."
2104 " Immediate action needed.\n",
e4135c2d 2105 netdev->name, temp_val);
a97342f9
DP		 2106 }
2107 } else {
2108 if (adapter->temp == NX_TEMP_WARN) {
2109 printk(KERN_INFO
2110 "%s: Device temperature is now %d degrees C"
e4135c2d 2111 " in normal range.\n", netdev->name,
a97342f9
DP		 2112 temp_val);
2113 }
2114 }
2115 adapter->temp = temp_state;
2116 return rv;
2117}
2118
3bf26ce3 2119void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2120{
2121 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2122
2123 if (adapter->ahw.linkup && !linkup) {
2124 printk(KERN_INFO "%s: %s NIC Link is down\n",
2125 netxen_nic_driver_name, netdev->name);
2126 adapter->ahw.linkup = 0;
2127 if (netif_running(netdev)) {
2128 netif_carrier_off(netdev);
2129 netif_stop_queue(netdev);
2130 }
e424fa9d 2131 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2132 } else if (!adapter->ahw.linkup && linkup) {
2133 printk(KERN_INFO "%s: %s NIC Link is up\n",
2134 netxen_nic_driver_name, netdev->name);
2135 adapter->ahw.linkup = 1;
2136 if (netif_running(netdev)) {
2137 netif_carrier_on(netdev);
2138 netif_wake_queue(netdev);
2139 }
e424fa9d 2140 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2141 }
2142}
2143
3bf26ce3
DP		 2144static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2145{
2146 u32 val, port, linkup;
2147
2148 port = adapter->physical_port;
2149
2150 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2151 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2152 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2153 linkup = (val == XG_LINK_UP_P3);
2154 } else {
f98a9f69 2155 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2156 val = (val >> port*8) & 0xff;
2157 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2158 }
2159
2160 netxen_advert_link_change(adapter, linkup);
2161}
2162
3d396eb1
AK		 2163static void netxen_tx_timeout(struct net_device *netdev)
2164{
e424fa9d 2165 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2166
6a581e93
DP		 2167 if (test_bit(__NX_RESETTING, &adapter->state))
2168 return;
2169
f17443f4 2170 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2171 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2172}
2173
74c520da 2174static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2175{
4790654c 2176 struct netxen_adapter *adapter =
3176ff3e 2177 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2178
b2af9cb0
DP		 2179 if (!netif_running(adapter->netdev))
2180 return;
2181
74c520da 2182 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2183 return;
2184
74c520da
AKS		 2185 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2186 goto request_reset;
2187
16d884bd 2188 rtnl_lock();
74c520da
AKS		 2189 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2190 /* try to scrub interrupt */
2191 netxen_napi_disable(adapter);
ba53e6b4 2192
74c520da
AKS		 2193 netxen_napi_enable(adapter);
2194
2195 netif_wake_queue(adapter->netdev);
2196
a598ae17 2197 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2198 } else {
a598ae17 2199 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2200 if (netxen_nic_reset_context(adapter)) {
2201 rtnl_unlock();
2202 goto request_reset;
74c520da 2203 }
74c520da 2204 }
16d884bd
AKS		 2205 adapter->netdev->trans_start = jiffies;
2206 rtnl_unlock();
2207 return;
74c520da
AKS		 2208
2209request_reset:
2210 adapter->need_fw_reset = 1;
ff8a306d 2211 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2212}
2213
47fd428c 2214static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2215 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2216{
2217 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2218
1bb482f8 2219 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2220 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2221 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2222 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2223 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2224 stats->tx_dropped = adapter->stats.txdropped;
2225
2226 return stats;
2227}
2228
e4c93c81 2229static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2230{
d8b100c5
DP		 2231 struct nx_host_sds_ring *sds_ring = data;
2232 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2233 u32 status = 0;
2234
195c5f98 2235 status = readl(adapter->isr_int_vec);
d71e1be8 2236
195c5f98 2237 if (!(status & adapter->int_vec_bit))
05aaa02d 2238 return IRQ_NONE;
e01872af 2239
195c5f98 2240 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2241 /* check interrupt state machine, to be sure */
195c5f98 2242 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2243 if (!ISR_LEGACY_INT_TRIGGERED(status))
2244 return IRQ_NONE;
2245
092bc571
DP		 2246 } else {
2247 unsigned long our_int = 0;
d71e1be8 2248
195c5f98 2249 our_int = readl(adapter->crb_int_state_reg);
092bc571 2250
d71e1be8 2251 /* not our interrupt */
092bc571 2252 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2253 return IRQ_NONE;
2254
092bc571 2255 /* claim interrupt */
195c5f98 2256 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2257
195c5f98 2258 /* clear interrupt */
d8b100c5 2259 netxen_nic_disable_int(sds_ring);
195c5f98 2260 }
092bc571 2261
195c5f98 2262 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2263 /* read twice to ensure write is flushed */
195c5f98
AKS		 2264 readl(adapter->isr_int_vec);
2265 readl(adapter->isr_int_vec);
092bc571 2266
d8b100c5 2267 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2268
2269 return IRQ_HANDLED;
2270}
2271
e4c93c81 2272static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2273{
d8b100c5
DP		 2274 struct nx_host_sds_ring *sds_ring = data;
2275 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2276
092bc571 2277 /* clear interrupt */
195c5f98 2278 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2279
d8b100c5 2280 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2281 return IRQ_HANDLED;
2282}
2283
b3df68f8
DP		 2284static irqreturn_t netxen_msix_intr(int irq, void *data)
2285{
d8b100c5 2286 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2287
d8b100c5 2288 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2289 return IRQ_HANDLED;
2290}
2291
bea3348e 2292static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2293{
d8b100c5
DP		 2294 struct nx_host_sds_ring *sds_ring =
2295 container_of(napi, struct nx_host_sds_ring, napi);
2296
2297 struct netxen_adapter *adapter = sds_ring->adapter;
2298
05aaa02d 2299 int tx_complete;
bea3348e 2300 int work_done;
3d396eb1 2301
05aaa02d 2302 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2303
d8b100c5 2304 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2305
05aaa02d 2306 if ((work_done < budget) && tx_complete) {
d8b100c5 2307 napi_complete(&sds_ring->napi);
f2251f66 2308 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2309 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2310 }
2311
bea3348e 2312 return work_done;
3d396eb1
AK		 2313}
2314
2315#ifdef CONFIG_NET_POLL_CONTROLLER
2316static void netxen_nic_poll_controller(struct net_device *netdev)
2317{
7b589a35
YL		 2318 int ring;
2319 struct nx_host_sds_ring *sds_ring;
3176ff3e 2320 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2321 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2322
3d396eb1 2323 disable_irq(adapter->irq);
7b589a35
YL		 2324 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2325 sds_ring = &recv_ctx->sds_rings[ring];
2326 netxen_intr(adapter->irq, sds_ring);
2327 }
3d396eb1
AK		 2328 enable_irq(adapter->irq);
2329}
2330#endif
3d396eb1 2331
6a581e93
DP		 2332static int
2333nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2334{
2335 int count;
2336 if (netxen_api_lock(adapter))
2337 return -EIO;
2338
2339 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2340
2341 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2342
2343 netxen_api_unlock(adapter);
2344 return count;
2345}
2346
2347static int
2348nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2349{
83f18a55 2350 int count, state;
6a581e93
DP		 2351 if (netxen_api_lock(adapter))
2352 return -EIO;
2353
2354 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2355 WARN_ON(count == 0);
2356
2357 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2358 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2359
83f18a55 2360 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2361 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2362
2363 netxen_api_unlock(adapter);
2364 return count;
2365}
2366
e87ad553
AKS		 2367static int
2368nx_dev_request_aer(struct netxen_adapter *adapter)
2369{
2370 u32 state;
2371 int ret = -EINVAL;
2372
2373 if (netxen_api_lock(adapter))
2374 return ret;
2375
2376 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2377
2378 if (state == NX_DEV_NEED_AER)
2379 ret = 0;
2380 else if (state == NX_DEV_READY) {
2381 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2382 ret = 0;
2383 }
2384
2385 netxen_api_unlock(adapter);
2386 return ret;
2387}
2388
83f18a55 2389int
74c520da
AKS		 2390nx_dev_request_reset(struct netxen_adapter *adapter)
2391{
2392 u32 state;
e87ad553 2393 int ret = -EINVAL;
74c520da
AKS		 2394
2395 if (netxen_api_lock(adapter))
e87ad553 2396 return ret;
74c520da
AKS		 2397
2398 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2399
83f18a55 2400 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2401 ret = 0;
2402 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2403 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2404 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2405 ret = 0;
2406 }
74c520da
AKS		 2407
2408 netxen_api_unlock(adapter);
e87ad553
AKS		 2409
2410 return ret;
74c520da
AKS		 2411}
2412
6a581e93
DP		 2413static int
2414netxen_can_start_firmware(struct netxen_adapter *adapter)
2415{
2416 int count;
2417 int can_start = 0;
2418
83f18a55
M		 2419 if (netxen_api_lock(adapter)) {
2420 nx_incr_dev_ref_cnt(adapter);
2421 return -1;
2422 }
6a581e93
DP		 2423
2424 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2425
2426 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2427 count = 0;
2428
2429 if (count == 0) {
2430 can_start = 1;
2431 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2432 }
2433
2434 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2435
2436 netxen_api_unlock(adapter);
2437
2438 return can_start;
2439}
2440
2441static void
2442netxen_schedule_work(struct netxen_adapter *adapter,
2443 work_func_t func, int delay)
2444{
2445 INIT_DELAYED_WORK(&adapter->fw_work, func);
2446 schedule_delayed_work(&adapter->fw_work, delay);
2447}
2448
2449static void
2450netxen_cancel_fw_work(struct netxen_adapter *adapter)
2451{
2452 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2453 msleep(10);
2454
2455 cancel_delayed_work_sync(&adapter->fw_work);
2456}
2457
2458static void
2459netxen_attach_work(struct work_struct *work)
2460{
2461 struct netxen_adapter *adapter = container_of(work,
2462 struct netxen_adapter, fw_work.work);
2463 struct net_device *netdev = adapter->netdev;
2464 int err = 0;
2465
2466 if (netif_running(netdev)) {
2467 err = netxen_nic_attach(adapter);
2468 if (err)
2469 goto done;
2470
2471 err = netxen_nic_up(adapter, netdev);
2472 if (err) {
2473 netxen_nic_detach(adapter);
2474 goto done;
2475 }
2476
57569d0e 2477 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2478 }
2479
2480 netif_device_attach(netdev);
2481
2482done:
2483 adapter->fw_fail_cnt = 0;
2484 clear_bit(__NX_RESETTING, &adapter->state);
2485 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2486}
2487
2488static void
2489netxen_fwinit_work(struct work_struct *work)
2490{
2491 struct netxen_adapter *adapter = container_of(work,
2492 struct netxen_adapter, fw_work.work);
2493 int dev_state;
83f18a55 2494 int count;
6a581e93 2495 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2496 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2497 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2498 WARN_ON(count == 0);
2499 if (count == 1) {
2500 if (adapter->mdump.md_enabled) {
2501 rtnl_lock();
2502 netxen_dump_fw(adapter);
2503 rtnl_unlock();
2504 }
2505 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2506 if (netxen_api_lock(adapter)) {
2507 clear_bit(__NX_RESETTING, &adapter->state);
2508 NXWR32(adapter, NX_CRB_DEV_STATE,
2509 NX_DEV_FAILED);
2510 return;
2511 }
2512 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2513 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2514 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2515 dev_state = NX_DEV_COLD;
2516 netxen_api_unlock(adapter);
2517 }
2518 }
6a581e93
DP		 2519
2520 switch (dev_state) {
2521 case NX_DEV_COLD:
2522 case NX_DEV_READY:
74c520da
AKS		 2523 if (!netxen_start_firmware(adapter)) {
2524 netxen_schedule_work(adapter, netxen_attach_work, 0);
2525 return;
2526 }
2527 break;
6a581e93 2528
6b50ea15 2529 case NX_DEV_NEED_RESET:
6a581e93 2530 case NX_DEV_INITALIZING:
6a581e93
DP		 2531 netxen_schedule_work(adapter,
2532 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2533 return;
6a581e93
DP		 2534
2535 case NX_DEV_FAILED:
2536 default:
8f9b3f69 2537 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2538 break;
2539 }
2540
83f18a55
M		 2541 if (netxen_api_lock(adapter)) {
2542 clear_bit(__NX_RESETTING, &adapter->state);
2543 return;
2544 }
2545 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2546 netxen_api_unlock(adapter);
2547 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2548 adapter->netdev->name);
2549
6a581e93
DP		 2550 clear_bit(__NX_RESETTING, &adapter->state);
2551}
2552
2553static void
2554netxen_detach_work(struct work_struct *work)
2555{
2556 struct netxen_adapter *adapter = container_of(work,
2557 struct netxen_adapter, fw_work.work);
2558 struct net_device *netdev = adapter->netdev;
83f18a55 2559 int ref_cnt = 0, delay;
6a581e93
DP		 2560 u32 status;
2561
2562 netif_device_detach(netdev);
2563
6f771419 2564 netxen_nic_down(adapter, netdev);
6a581e93 2565
e15eec28 2566 rtnl_lock();
6a581e93 2567 netxen_nic_detach(adapter);
e15eec28 2568 rtnl_unlock();
6a581e93
DP		 2569
2570 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2571
6a581e93 2572 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2573 goto err_ret;
6a581e93
DP		 2574
2575 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2576 goto err_ret;
2577
83f18a55
M		 2578 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2579 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2580
6b50ea15
AKS		 2581 if (ref_cnt == -EIO)
2582 goto err_ret;
2583
6a581e93
DP		 2584 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2585
2586 adapter->fw_wait_cnt = 0;
2587 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2588
2589 return;
2590
2591err_ret:
2592 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2593}
2594
2595static int
2596netxen_check_health(struct netxen_adapter *adapter)
2597{
2598 u32 state, heartbit;
5471aed0 2599 u32 peg_status;
6a581e93
DP		 2600 struct net_device *netdev = adapter->netdev;
2601
e87ad553
AKS		 2602 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2603 if (state == NX_DEV_NEED_AER)
2604 return 0;
2605
6a581e93
DP		 2606 if (netxen_nic_check_temp(adapter))
2607 goto detach;
2608
74c520da 2609 if (adapter->need_fw_reset) {
e87ad553
AKS		 2610 if (nx_dev_request_reset(adapter))
2611 return 0;
74c520da
AKS		 2612 goto detach;
2613 }
2614
e87ad553
AKS		 2615 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2616 * 1. Tx timeout 2. Fw hang
2617 * Send request to destroy context in case of tx timeout only
2618 * and doesn't required in case of Fw hang
2619 */
83f18a55 2620 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2621 adapter->need_fw_reset = 1;
e87ad553
AKS		 2622 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2623 goto detach;
6a808c6c 2624 }
6a581e93
DP		 2625
2626 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2627 return 0;
2628
2629 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2630 if (heartbit != adapter->heartbit) {
2631 adapter->heartbit = heartbit;
2632 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2633 if (adapter->need_fw_reset)
2634 goto detach;
6a581e93
DP		 2635 return 0;
2636 }
2637
2638 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2639 return 0;
2640
e87ad553
AKS		 2641 if (nx_dev_request_reset(adapter))
2642 return 0;
2643
6a581e93
DP		 2644 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2645
5471aed0
SV		 2646 dev_err(&netdev->dev, "firmware hang detected\n");
2647 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2648 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2649 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2650 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2651 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2652 "PEG_NET_4_PC: 0x%x\n",
2653 peg_status,
2654 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2655 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2656 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2657 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2658 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2659 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2660 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2661 dev_err(&adapter->pdev->dev,
2662 "Firmware aborted with error code 0x00006700. "
2663 "Device is being reset.\n");
6a581e93 2664detach:
caa2dd53
NK		 2665 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2666 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2667 netxen_schedule_work(adapter, netxen_detach_work, 0);
2668 return 1;
2669}
2670
2671static void
2672netxen_fw_poll_work(struct work_struct *work)
2673{
2674 struct netxen_adapter *adapter = container_of(work,
2675 struct netxen_adapter, fw_work.work);
2676
2677 if (test_bit(__NX_RESETTING, &adapter->state))
2678 goto reschedule;
2679
2680 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2681 if (!adapter->has_link_events) {
2682
2683 netxen_nic_handle_phy_intr(adapter);
2684
2685 if (adapter->link_changed)
2686 netxen_nic_set_link_parameters(adapter);
2687 }
2688 }
2689
2690 if (netxen_check_health(adapter))
2691 return;
2692
2693reschedule:
2694 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2695}
2696
fa3ce355
NK		 2697static ssize_t
2698netxen_store_bridged_mode(struct device *dev,
2699 struct device_attribute *attr, const char *buf, size_t len)
2700{
2701 struct net_device *net = to_net_dev(dev);
2702 struct netxen_adapter *adapter = netdev_priv(net);
2703 unsigned long new;
2704 int ret = -EINVAL;
2705
2706 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2707 goto err_out;
2708
2709 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2710 goto err_out;
2711
2712 if (strict_strtoul(buf, 2, &new))
2713 goto err_out;
2714
2715 if (!netxen_config_bridged_mode(adapter, !!new))
2716 ret = len;
2717
2718err_out:
2719 return ret;
2720}
2721
2722static ssize_t
2723netxen_show_bridged_mode(struct device *dev,
2724 struct device_attribute *attr, char *buf)
2725{
2726 struct net_device *net = to_net_dev(dev);
2727 struct netxen_adapter *adapter;
2728 int bridged_mode = 0;
2729
2730 adapter = netdev_priv(net);
2731
2732 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2733 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2734
2735 return sprintf(buf, "%d\n", bridged_mode);
2736}
2737
2738static struct device_attribute dev_attr_bridged_mode = {
2739 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2740 .show = netxen_show_bridged_mode,
2741 .store = netxen_store_bridged_mode,
2742};
2743
70f9cf89
DP		 2744static ssize_t
2745netxen_store_diag_mode(struct device *dev,
2746 struct device_attribute *attr, const char *buf, size_t len)
2747{
2748 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2749 unsigned long new;
2750
2751 if (strict_strtoul(buf, 2, &new))
2752 return -EINVAL;
2753
2754 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2755 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2756
2757 return len;
2758}
2759
2760static ssize_t
2761netxen_show_diag_mode(struct device *dev,
2762 struct device_attribute *attr, char *buf)
2763{
2764 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2765
2766 return sprintf(buf, "%d\n",
2767 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2768}
2769
2770static struct device_attribute dev_attr_diag_mode = {
2771 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2772 .show = netxen_show_diag_mode,
2773 .store = netxen_store_diag_mode,
2774};
2775
2776static int
2777netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2778 loff_t offset, size_t size)
2779{
0b9715e6
AKS		 2780 size_t crb_size = 4;
2781
70f9cf89
DP		 2782 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2783 return -EIO;
2784
0b9715e6
AKS		 2785 if (offset < NETXEN_PCI_CRBSPACE) {
2786 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2787 return -EINVAL;
70f9cf89 2788
0b9715e6
AKS		 2789 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2790 NETXEN_PCI_CAMQM_2M_END))
2791 crb_size = 8;
2792 else
2793 return -EINVAL;
2794 }
2795
2796 if ((size != crb_size) || (offset & (crb_size-1)))
2797 return -EINVAL;
70f9cf89
DP		 2798
2799 return 0;
2800}
2801
2802static ssize_t
2c3c8bea
CW		 2803netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2804 struct bin_attribute *attr,
70f9cf89
DP		 2805 char *buf, loff_t offset, size_t size)
2806{
2807 struct device *dev = container_of(kobj, struct device, kobj);
2808 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2809 u32 data;
0b9715e6 2810 u64 qmdata;
70f9cf89
DP		 2811 int ret;
2812
2813 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2814 if (ret != 0)
2815 return ret;
2816
0b9715e6
AKS		 2817 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2818 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2819 NETXEN_PCI_CAMQM_2M_END)) {
2820 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2821 memcpy(buf, &qmdata, size);
2822 } else {
2823 data = NXRD32(adapter, offset);
2824 memcpy(buf, &data, size);
2825 }
2826
70f9cf89
DP		 2827 return size;
2828}
2829
2830static ssize_t
2c3c8bea
CW		 2831netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2832 struct bin_attribute *attr,
70f9cf89
DP		 2833 char *buf, loff_t offset, size_t size)
2834{
2835 struct device *dev = container_of(kobj, struct device, kobj);
2836 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2837 u32 data;
0b9715e6 2838 u64 qmdata;
70f9cf89
DP		 2839 int ret;
2840
2841 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2842 if (ret != 0)
2843 return ret;
2844
0b9715e6
AKS		 2845 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2846 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2847 NETXEN_PCI_CAMQM_2M_END)) {
2848 memcpy(&qmdata, buf, size);
2849 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2850 } else {
2851 memcpy(&data, buf, size);
2852 NXWR32(adapter, offset, data);
2853 }
2854
70f9cf89
DP		 2855 return size;
2856}
2857
2858static int
2859netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2860 loff_t offset, size_t size)
2861{
2862 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2863 return -EIO;
2864
2865 if ((size != 8) || (offset & 0x7))
2866 return -EIO;
2867
2868 return 0;
2869}
2870
2871static ssize_t
2c3c8bea
CW		 2872netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2873 struct bin_attribute *attr,
70f9cf89
DP		 2874 char *buf, loff_t offset, size_t size)
2875{
2876 struct device *dev = container_of(kobj, struct device, kobj);
2877 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2878 u64 data;
2879 int ret;
2880
2881 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2882 if (ret != 0)
2883 return ret;
2884
2885 if (adapter->pci_mem_read(adapter, offset, &data))
2886 return -EIO;
2887
2888 memcpy(buf, &data, size);
2889
2890 return size;
2891}
2892
2c3c8bea 2893static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2894 struct bin_attribute *attr, char *buf,
2895 loff_t offset, size_t size)
2896{
2897 struct device *dev = container_of(kobj, struct device, kobj);
2898 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2899 u64 data;
2900 int ret;
2901
2902 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2903 if (ret != 0)
2904 return ret;
2905
2906 memcpy(&data, buf, size);
2907
2908 if (adapter->pci_mem_write(adapter, offset, data))
2909 return -EIO;
2910
2911 return size;
2912}
2913
2914
2915static struct bin_attribute bin_attr_crb = {
2916 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2917 .size = 0,
2918 .read = netxen_sysfs_read_crb,
2919 .write = netxen_sysfs_write_crb,
2920};
2921
2922static struct bin_attribute bin_attr_mem = {
2923 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2924 .size = 0,
2925 .read = netxen_sysfs_read_mem,
2926 .write = netxen_sysfs_write_mem,
2927};
2928
caa2dd53 2929
fa3ce355
NK		 2930static void
2931netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2932{
b8c30812 2933 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 2934
2935 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2936 /* bridged_mode control */
2937 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 2938 dev_warn(dev,
fa3ce355
NK		 2939 "failed to create bridged_mode sysfs entry\n");
2940 }
2941 }
2942}
2943
2944static void
2945netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2946{
b8c30812 2947 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 2948
2949 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2950 device_remove_file(dev, &dev_attr_bridged_mode);
2951}
2952
70f9cf89
DP		 2953static void
2954netxen_create_diag_entries(struct netxen_adapter *adapter)
2955{
2956 struct pci_dev *pdev = adapter->pdev;
2957 struct device *dev;
2958
2959 dev = &pdev->dev;
2960 if (device_create_file(dev, &dev_attr_diag_mode))
2961 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2962 if (device_create_bin_file(dev, &bin_attr_crb))
2963 dev_info(dev, "failed to create crb sysfs entry\n");
2964 if (device_create_bin_file(dev, &bin_attr_mem))
2965 dev_info(dev, "failed to create mem sysfs entry\n");
2966}
2967
2968
2969static void
2970netxen_remove_diag_entries(struct netxen_adapter *adapter)
2971{
2972 struct pci_dev *pdev = adapter->pdev;
2973 struct device *dev = &pdev->dev;
2974
2975 device_remove_file(dev, &dev_attr_diag_mode);
2976 device_remove_bin_file(dev, &bin_attr_crb);
2977 device_remove_bin_file(dev, &bin_attr_mem);
2978}
2979
044824d9
DP		 2980#ifdef CONFIG_INET
2981
6598b169
DP		 2982#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2983
2984static int
2985netxen_destip_supported(struct netxen_adapter *adapter)
2986{
2987 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2988 return 0;
2989
2990 if (adapter->ahw.cut_through)
2991 return 0;
2992
2993 return 1;
2994}
2995
d0725e4d 2996static void
57569d0e
RB		 2997netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
2998{
2999 struct nx_vlan_ip_list *cur;
3000 struct list_head *head = &adapter->vlan_ip_list;
3001
3002 while (!list_empty(head)) {
3003 cur = list_entry(head->next, struct nx_vlan_ip_list, list);
3004 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3005 list_del(&cur->list);
3006 kfree(cur);
3007 }
3008
3009}
3010static void
3011netxen_list_config_vlan_ip(struct netxen_adapter *adapter,
3012 struct in_ifaddr *ifa, unsigned long event)
3013{
3014 struct net_device *dev;
3015 struct nx_vlan_ip_list *cur, *tmp_cur;
3016 struct list_head *head;
3017
3018 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3019
3020 if (dev == NULL)
3021 return;
3022
3023 if (!is_vlan_dev(dev))
3024 return;
3025
3026 switch (event) {
3027 case NX_IP_UP:
3028 list_for_each(head, &adapter->vlan_ip_list) {
3029 cur = list_entry(head, struct nx_vlan_ip_list, list);
3030
3031 if (cur->ip_addr == ifa->ifa_address)
3032 return;
3033 }
3034
3035 cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC);
3036 if (cur == NULL) {
3037 printk(KERN_ERR "%s: failed to add vlan ip to list\n",
3038 adapter->netdev->name);
3039 return;
3040 }
3041
3042 cur->ip_addr = ifa->ifa_address;
3043 list_add_tail(&cur->list, &adapter->vlan_ip_list);
3044 break;
3045 case NX_IP_DOWN:
3046 list_for_each_entry_safe(cur, tmp_cur,
3047 &adapter->vlan_ip_list, list) {
3048 if (cur->ip_addr == ifa->ifa_address) {
3049 list_del(&cur->list);
3050 kfree(cur);
3051 break;
3052 }
3053 }
3054 }
3055}
3056static void
3057netxen_config_indev_addr(struct netxen_adapter *adapter,
3058 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3059{
3060 struct in_device *indev;
d0725e4d 3061
3db76755 3062 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3063 return;
3064
3065 indev = in_dev_get(dev);
3066 if (!indev)
3067 return;
3068
3069 for_ifa(indev) {
3070 switch (event) {
3071 case NETDEV_UP:
3072 netxen_config_ipaddr(adapter,
3073 ifa->ifa_address, NX_IP_UP);
57569d0e 3074 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3075 break;
3076 case NETDEV_DOWN:
3077 netxen_config_ipaddr(adapter,
3078 ifa->ifa_address, NX_IP_DOWN);
57569d0e 3079 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3080 break;
3081 default:
3082 break;
3083 }
3084 } endfor_ifa(indev);
3085
3086 in_dev_put(indev);
d0725e4d
AKS		 3087}
3088
57569d0e
RB		 3089static void
3090netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3091
3092{
3093 struct netxen_adapter *adapter = netdev_priv(netdev);
3094 struct nx_vlan_ip_list *pos, *tmp_pos;
3095 unsigned long ip_event;
3096
3097 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3098 netxen_config_indev_addr(adapter, netdev, event);
3099
3100 list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) {
3101 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3102 }
3103}
3104
6598b169
DP		 3105static int netxen_netdev_event(struct notifier_block *this,
3106 unsigned long event, void *ptr)
3107{
3108 struct netxen_adapter *adapter;
3109 struct net_device *dev = (struct net_device *)ptr;
57569d0e 3110 struct net_device *orig_dev = dev;
6598b169
DP		 3111
3112recheck:
3113 if (dev == NULL)
3114 goto done;
3115
3116 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3117 dev = vlan_dev_real_dev(dev);
3118 goto recheck;
3119 }
3120
3121 if (!is_netxen_netdev(dev))
3122 goto done;
3123
3124 adapter = netdev_priv(dev);
3125
d0725e4d 3126 if (!adapter)
6598b169
DP		 3127 goto done;
3128
3129 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3130 goto done;
3131
57569d0e 3132 netxen_config_indev_addr(adapter, orig_dev, event);
6598b169
DP		 3133done:
3134 return NOTIFY_DONE;
3135}
3136
3137static int
3138netxen_inetaddr_event(struct notifier_block *this,
3139 unsigned long event, void *ptr)
3140{
3141 struct netxen_adapter *adapter;
3142 struct net_device *dev;
3143
3144 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3145
3146 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3147
3148recheck:
57569d0e 3149 if (dev == NULL)
6598b169
DP		 3150 goto done;
3151
3152 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3153 dev = vlan_dev_real_dev(dev);
3154 goto recheck;
3155 }
3156
3157 if (!is_netxen_netdev(dev))
3158 goto done;
3159
3160 adapter = netdev_priv(dev);
3161
3162 if (!adapter || !netxen_destip_supported(adapter))
3163 goto done;
3164
3165 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3166 goto done;
3167
3168 switch (event) {
3169 case NETDEV_UP:
3170 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
57569d0e 3171 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
6598b169
DP		 3172 break;
3173 case NETDEV_DOWN:
3174 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
57569d0e 3175 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
6598b169
DP		 3176 break;
3177 default:
3178 break;
3179 }
3180
3181done:
3182 return NOTIFY_DONE;
3183}
3184
3185static struct notifier_block netxen_netdev_cb = {
3186 .notifier_call = netxen_netdev_event,
3187};
3188
3189static struct notifier_block netxen_inetaddr_cb = {
3190 .notifier_call = netxen_inetaddr_event,
3191};
9feae56c
RD		 3192#else
3193static void
57569d0e
RB		 3194netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3195{ }
3196static void
3197netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
9feae56c 3198{ }
044824d9 3199#endif
6598b169 3200
e87ad553
AKS		 3201static struct pci_error_handlers netxen_err_handler = {
3202 .error_detected = netxen_io_error_detected,
3203 .slot_reset = netxen_io_slot_reset,
3204 .resume = netxen_io_resume,
3205};
3206
3d396eb1
AK		 3207static struct pci_driver netxen_driver = {
3208 .name = netxen_nic_driver_name,
3209 .id_table = netxen_pci_tbl,
3210 .probe = netxen_nic_probe,
0b72e659 3211 .remove = __devexit_p(netxen_nic_remove),
01542cd1 3212#ifdef CONFIG_PM
0b72e659 3213 .suspend = netxen_nic_suspend,
22b5794b 3214 .resume = netxen_nic_resume,
01542cd1 3215#endif
e87ad553
AKS		 3216 .shutdown = netxen_nic_shutdown,
3217 .err_handler = &netxen_err_handler
3d396eb1
AK		 3218};
3219
3d396eb1
AK		 3220static int __init netxen_init_module(void)
3221{
ff4fbd43
DP		 3222 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3223
044824d9 3224#ifdef CONFIG_INET
6598b169
DP		 3225 register_netdevice_notifier(&netxen_netdev_cb);
3226 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3227#endif
184231bd 3228 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3229}
3230
3231module_init(netxen_init_module);
3232
3233static void __exit netxen_exit_module(void)
3234{
3d396eb1 3235 pci_unregister_driver(&netxen_driver);
6598b169 3236
044824d9 3237#ifdef CONFIG_INET
6598b169
DP		 3238 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3239 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3240#endif
3d396eb1
AK		 3241}
3242
3243module_exit(netxen_exit_module);
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