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forcedeth: Use pci_enable_msix_range() instead of pci_enable_msix()
[linux-2.6-block.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 16 * You should have received a copy of the GNU General Public License
0ab75ae8 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
80922fbc 18 *
3d396eb1 19 * The full GNU General Public License is included in this distribution
4d21fef4 20 * in the file called "COPYING".
80922fbc 21 *
3d396eb1
AK		 22 */
23
5a0e3ad6 24#include <linux/slab.h>
cb8011ad 25#include <linux/vmalloc.h>
e98e3350 26#include <linux/interrupt.h>
3d396eb1
AK		 27#include "netxen_nic_hw.h"
28
29#include "netxen_nic.h"
3d396eb1 30
1494a814 31#include <linux/dma-mapping.h>
391587c3 32#include <linux/if_vlan.h>
c9bdd4b5 33#include <net/ip.h>
00977784 34#include <linux/ipv6.h>
6598b169 35#include <linux/inetdevice.h>
0531d7b8 36#include <linux/sysfs.h>
e87ad553 37#include <linux/aer.h>
1494a814 38
0438a1b2 39MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 40MODULE_LICENSE("GPL");
41MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 42MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 43
ceded32f 44char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 45static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 46 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 47
2956640d
DP		 48static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
49
50/* Default to restricted 1G auto-neg mode */
51static int wol_port_mode = 5;
52
53static int use_msi = 1;
54
55static int use_msi_x = 1;
56
afdafff1
SH		 57static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
58module_param(auto_fw_reset, int, 0644);
59MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 60
c3f9c88c 61static int netxen_nic_probe(struct pci_dev *pdev,
2956640d 62 const struct pci_device_id *ent);
c3f9c88c 63static void netxen_nic_remove(struct pci_dev *pdev);
3d396eb1
AK		 64static int netxen_nic_open(struct net_device *netdev);
65static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 66static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
3d396eb1 68static void netxen_tx_timeout(struct net_device *netdev);
74c520da 69static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 70static void netxen_fw_poll_work(struct work_struct *work);
71static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 74static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 75#ifdef CONFIG_NET_POLL_CONTROLLER
76static void netxen_nic_poll_controller(struct net_device *netdev);
77#endif
fa3ce355
NK		 78
79static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 81static void netxen_create_diag_entries(struct netxen_adapter *adapter);
82static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
e87ad553 83static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 84static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
85static int netxen_can_start_firmware(struct netxen_adapter *adapter);
86
1494a814 87static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 88static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 89static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 90
8a7fbfab 91static void netxen_free_ip_list(struct netxen_adapter *, bool);
57569d0e 92static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
47fd428c 93static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
94 struct rtnl_link_stats64 *stats);
7e12bb0a 95static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 96
3d396eb1 97/* PCI Device ID Table */
70081ac5 98#define ENTRY(device) \
040dec3b 99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
a3aa1884 102static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 103 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
104 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
105 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
106 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
110 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 111 {0,}
112};
113
114MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
115
7830b22c
DP		 116static uint32_t crb_cmd_producer[4] = {
117 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
118 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
119};
120
c9fc891f 121void
3ce06a32 122netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 123 struct nx_host_tx_ring *tx_ring)
3176ff3e 124{
195c5f98 125 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 126}
127
7830b22c
DP		 128static uint32_t crb_cmd_consumer[4] = {
129 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
130 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
131};
132
3ce06a32
DP		 133static inline void
134netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 135 struct nx_host_tx_ring *tx_ring)
3176ff3e 136{
195c5f98 137 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 138}
139
2956640d 140static uint32_t msi_tgt_status[8] = {
443be796 141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 145};
146
2956640d
DP		 147static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
148
d8b100c5 149static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 150{
d8b100c5
DP		 151 struct netxen_adapter *adapter = sds_ring->adapter;
152
195c5f98 153 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 154}
155
d8b100c5 156static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 157{
d8b100c5
DP		 158 struct netxen_adapter *adapter = sds_ring->adapter;
159
195c5f98 160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 161
092bc571 162 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 163 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 164}
165
71dcddbd
DP		 166static int
167netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
168{
169 int size = sizeof(struct nx_host_sds_ring) * count;
170
171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
172
807540ba 173 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 174}
175
d8b100c5 176static void
71dcddbd
DP		 177netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
178{
179 if (recv_ctx->sds_rings != NULL)
180 kfree(recv_ctx->sds_rings);
232e7d68
DP		 181
182 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 183}
184
185static int
d8b100c5
DP		 186netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
187{
188 int ring;
189 struct nx_host_sds_ring *sds_ring;
190 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
191
71dcddbd 192 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 193 return -ENOMEM;
71dcddbd 194
d8b100c5
DP		 195 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
196 sds_ring = &recv_ctx->sds_rings[ring];
197 netif_napi_add(netdev, &sds_ring->napi,
1e4a5282 198 netxen_nic_poll, NAPI_POLL_WEIGHT);
d8b100c5 199 }
71dcddbd
DP		 200
201 return 0;
d8b100c5
DP		 202}
203
232e7d68
DP		 204static void
205netxen_napi_del(struct netxen_adapter *adapter)
206{
207 int ring;
208 struct nx_host_sds_ring *sds_ring;
209 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 netxen_free_sds_rings(&adapter->recv_ctx);
217}
218
d8b100c5
DP		 219static void
220netxen_napi_enable(struct netxen_adapter *adapter)
221{
222 int ring;
223 struct nx_host_sds_ring *sds_ring;
224 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
225
226 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
227 sds_ring = &recv_ctx->sds_rings[ring];
228 napi_enable(&sds_ring->napi);
229 netxen_nic_enable_int(sds_ring);
230 }
231}
232
233static void
234netxen_napi_disable(struct netxen_adapter *adapter)
235{
236 int ring;
237 struct nx_host_sds_ring *sds_ring;
238 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
239
240 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
241 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 242 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 243 napi_synchronize(&sds_ring->napi);
244 napi_disable(&sds_ring->napi);
d8b100c5
DP		 245 }
246}
247
50c643e7 248static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 249{
250 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 251 uint64_t mask, cmask;
252
253 adapter->pci_using_dac = 0;
2956640d 254
6afd142f 255 mask = DMA_BIT_MASK(32);
6afd142f 256 cmask = DMA_BIT_MASK(32);
1f434f63 257
50c643e7 258 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 259#ifndef CONFIG_IA64
6afd142f 260 mask = DMA_BIT_MASK(35);
1f434f63 261#endif
50c643e7
DP		 262 } else {
263 mask = DMA_BIT_MASK(39);
264 cmask = mask;
265 }
266
2956640d 267 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 268 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 269 adapter->pci_using_dac = 1;
270 return 0;
271 }
2956640d 272
1f434f63
DP		 273 return -EIO;
274}
275
276/* Update addressable range if firmware supports it */
277static int
278nx_update_dma_mask(struct netxen_adapter *adapter)
279{
280 int change, shift, err;
50c643e7 281 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 282 struct pci_dev *pdev = adapter->pdev;
283
284 change = 0;
285
f98a9f69 286 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 287 if (shift > 32)
1f434f63
DP		 288 return 0;
289
290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
291 change = 1;
292 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
293 change = 1;
294
295 if (change) {
296 old_mask = pdev->dma_mask;
50c643e7
DP		 297 old_cmask = pdev->dev.coherent_dma_mask;
298
f60f7856 299 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 300
301 err = pci_set_dma_mask(pdev, mask);
302 if (err)
50c643e7
DP		 303 goto err_out;
304
305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
306
307 err = pci_set_consistent_dma_mask(pdev, mask);
308 if (err)
309 goto err_out;
310 }
311 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 312 }
313
2956640d 314 return 0;
50c643e7
DP		 315
316err_out:
317 pci_set_dma_mask(pdev, old_mask);
318 pci_set_consistent_dma_mask(pdev, old_cmask);
319 return err;
2956640d
DP		 320}
321
2956640d
DP		 322static int
323netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
324{
27c915a4 325 u32 val, timeout;
2956640d
DP		 326
327 if (first_boot == 0x55555555) {
328 /* This is the first boot after power up */
f98a9f69 329 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 330
331 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
332 return 0;
2956640d
DP		 333
334 /* PCI bus master workaround */
f98a9f69 335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 336 if (!(first_boot & 0x4)) {
337 first_boot |= 0x4;
f98a9f69 338 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 339 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 340 }
341
342 /* This is the first boot after power up */
f98a9f69 343 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 344 if (first_boot != 0x80000f) {
345 /* clear the register for future unloads/loads */
f98a9f69 346 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 347 return -EIO;
2956640d
DP		 348 }
349
27c915a4 350 /* Start P2 boot loader */
f98a9f69
DP		 351 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
352 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 353 timeout = 0;
354 do {
355 msleep(1);
f98a9f69 356 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 357
358 if (++timeout > 5000)
359 return -EIO;
360
361 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 362 }
27c915a4 363 return 0;
2956640d
DP		 364}
365
366static void netxen_set_port_mode(struct netxen_adapter *adapter)
367{
368 u32 val, data;
369
1e2d0059 370 val = adapter->ahw.board_type;
2956640d
DP		 371 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
372 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
373 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
374 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 376 } else if (port_mode == NETXEN_PORT_MODE_XG) {
377 data = NETXEN_PORT_MODE_XG;
f98a9f69 378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 379 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
380 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 382 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
383 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 385 } else {
386 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 388 }
389
390 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
391 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
392 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
394 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
395 }
f98a9f69 396 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 397 }
398}
399
e3feb266
RB		 400#define PCI_CAP_ID_GEN 0x10
401
402static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
403{
404 u32 pdevfuncsave;
405 u32 c8c9value = 0;
406 u32 chicken = 0;
407 u32 control = 0;
408 int i, pos;
409 struct pci_dev *pdev;
410
411 pdev = adapter->pdev;
412
413 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
414 /* clear chicken3.25:24 */
415 chicken &= 0xFCFFFFFF;
416 /*
417 * if gen1 and B0, set F1020 - if gen 2, do nothing
418 * if gen2 set to F1000
419 */
420 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
421 if (pos == 0xC0) {
422 pci_read_config_dword(pdev, pos + 0x10, &control);
423 if ((control & 0x000F0000) != 0x00020000) {
424 /* set chicken3.24 if gen1 */
425 chicken |= 0x01000000;
426 }
427 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
428 c8c9value = 0xF1000;
429 } else {
430 /* set chicken3.24 if gen1 */
431 chicken |= 0x01000000;
432 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
433 if (adapter->ahw.revision_id == NX_P3_B0)
434 c8c9value = 0xF1020;
435 else
436 c8c9value = 0;
437 }
438
439 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
440
441 if (!c8c9value)
442 return;
443
444 pdevfuncsave = pdev->devfn;
445 if (pdevfuncsave & 0x07)
446 return;
447
448 for (i = 0; i < 8; i++) {
449 pci_read_config_dword(pdev, pos + 8, &control);
450 pci_read_config_dword(pdev, pos + 8, &control);
451 pci_write_config_dword(pdev, pos + 8, c8c9value);
452 pdev->devfn++;
453 }
454 pdev->devfn = pdevfuncsave;
455}
456
2956640d
DP		 457static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
458{
459 u32 control;
2956640d 460
b83082e9
YW		 461 if (pdev->msix_cap) {
462 pci_read_config_dword(pdev, pdev->msix_cap, &control);
2956640d
DP		 463 if (enable)
464 control |= PCI_MSIX_FLAGS_ENABLE;
465 else
466 control = 0;
b83082e9 467 pci_write_config_dword(pdev, pdev->msix_cap, control);
2956640d
DP		 468 }
469}
470
be339aee 471static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 472{
473 int i;
474
be339aee 475 for (i = 0; i < count; i++)
2956640d
DP		 476 adapter->msix_entries[i].entry = i;
477}
478
9dc28efe
DP		 479static int
480netxen_read_mac_addr(struct netxen_adapter *adapter)
481{
482 int i;
483 unsigned char *p;
a03d2451 484 u64 mac_addr;
9dc28efe
DP		 485 struct net_device *netdev = adapter->netdev;
486 struct pci_dev *pdev = adapter->pdev;
487
9dc28efe
DP		 488 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
489 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
490 return -EIO;
491 } else {
492 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
493 return -EIO;
494 }
495
496 p = (unsigned char *)&mac_addr;
497 for (i = 0; i < 6; i++)
498 netdev->dev_addr[i] = *(p + 5 - i);
499
5d09e534 500 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 501
502 /* set station address */
503
aaeb6cdf 504 if (!is_valid_ether_addr(netdev->dev_addr))
e174961c 505 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 506
507 return 0;
508}
509
7e12bb0a 510static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 511{
512 struct netxen_adapter *adapter = netdev_priv(netdev);
513 struct sockaddr *addr = p;
514
515 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 516 return -EADDRNOTAVAIL;
3d0a3cc9
DP		 517
518 if (netif_running(netdev)) {
519 netif_device_detach(netdev);
520 netxen_napi_disable(adapter);
521 }
522
5d09e534 523 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 524 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
525 adapter->macaddr_set(adapter, addr->sa_data);
526
527 if (netif_running(netdev)) {
528 netif_device_attach(netdev);
529 netxen_napi_enable(adapter);
530 }
531 return 0;
532}
533
1abd266f
SH		 534static void netxen_set_multicast_list(struct net_device *dev)
535{
536 struct netxen_adapter *adapter = netdev_priv(dev);
537
3d0a3cc9 538 adapter->set_multi(dev);
1abd266f
SH		 539}
540
c8f44aff
MM		 541static netdev_features_t netxen_fix_features(struct net_device *dev,
542 netdev_features_t features)
066413da
MM		 543{
544 if (!(features & NETIF_F_RXCSUM)) {
545 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
546
547 features &= ~NETIF_F_LRO;
548 }
549
550 return features;
551}
552
c8f44aff
MM		 553static int netxen_set_features(struct net_device *dev,
554 netdev_features_t features)
066413da
MM		 555{
556 struct netxen_adapter *adapter = netdev_priv(dev);
557 int hw_lro;
558
559 if (!((dev->features ^ features) & NETIF_F_LRO))
560 return 0;
561
562 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
563 : NETXEN_NIC_LRO_DISABLED;
564
565 if (netxen_config_hw_lro(adapter, hw_lro))
566 return -EIO;
567
568 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
569 return -EIO;
570
571 return 0;
572}
573
1abd266f
SH		 574static const struct net_device_ops netxen_netdev_ops = {
575 .ndo_open = netxen_nic_open,
576 .ndo_stop = netxen_nic_close,
577 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 578 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f 579 .ndo_validate_addr = eth_validate_addr,
afc4b13d 580 .ndo_set_rx_mode = netxen_set_multicast_list,
1abd266f
SH		 581 .ndo_set_mac_address = netxen_nic_set_mac,
582 .ndo_change_mtu = netxen_nic_change_mtu,
583 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 584 .ndo_fix_features = netxen_fix_features,
585 .ndo_set_features = netxen_set_features,
1abd266f
SH		 586#ifdef CONFIG_NET_POLL_CONTROLLER
587 .ndo_poll_controller = netxen_nic_poll_controller,
588#endif
589};
590
b37eb210
MC		 591static inline bool netxen_function_zero(struct pci_dev *pdev)
592{
593 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
594}
595
596static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
597 u32 mode)
598{
599 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
600}
601
602static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
603{
604 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
605}
606
97daee83 607static void
a120e864 608netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
97daee83
DP		 609{
610 struct netxen_legacy_intr_set *legacy_intrp;
a120e864 611 u32 tgt_status_reg, int_state_reg;
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 617
a120e864
MC		 618 tgt_status_reg = legacy_intrp->tgt_status_reg;
619 int_state_reg = ISR_INT_STATE_REG;
620
195c5f98 621 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
a120e864 622 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
195c5f98 623 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
a120e864 624 legacy_intrp->tgt_mask_reg);
195c5f98 625 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
a120e864 626 legacy_intrp->pci_int_reg);
195c5f98
AKS		 627 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
628
629 if (adapter->ahw.revision_id >= NX_P3_B1)
630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864 631 int_state_reg);
195c5f98
AKS		 632 else
633 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864
MC		 634 CRB_INT_VECTOR);
635}
97daee83 636
a120e864
MC		 637static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
638 int num_msix)
639{
640 struct pci_dev *pdev = adapter->pdev;
641 u32 value;
642 int err;
97daee83
DP		 643
644 if (adapter->msix_supported) {
be339aee
DP		 645 netxen_init_msix_entries(adapter, num_msix);
646 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
647 if (err == 0) {
648 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
649 netxen_set_msix_bit(pdev, 1);
97daee83 650
be339aee
DP		 651 if (adapter->rss_supported)
652 adapter->max_sds_rings = num_msix;
97daee83 653
be339aee 654 dev_info(&pdev->dev, "using msi-x interrupts\n");
a120e864 655 return 0;
be339aee 656 }
be339aee 657 /* fall through for msi */
97daee83 658 }
be339aee
DP		 659
660 if (use_msi && !pci_enable_msi(pdev)) {
a120e864 661 value = msi_tgt_status[adapter->ahw.pci_func];
be339aee 662 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
a120e864 663 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
f67f3408 664 adapter->msix_entries[0].vector = pdev->irq;
a120e864
MC		 665 dev_info(&pdev->dev, "using msi interrupts\n");
666 return 0;
be339aee
DP		 667 }
668
b37eb210 669 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
a120e864
MC		 670 return -EIO;
671}
672
b37eb210 673static int netxen_setup_intr(struct netxen_adapter *adapter)
a120e864
MC		 674{
675 struct pci_dev *pdev = adapter->pdev;
676 int num_msix;
677
678 if (adapter->rss_supported)
679 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
680 MSIX_ENTRIES_PER_ADAPTER : 2;
681 else
682 num_msix = 1;
683
684 adapter->max_sds_rings = 1;
685 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
686
687 netxen_initialize_interrupt_registers(adapter);
688 netxen_set_msix_bit(pdev, 0);
689
b37eb210
MC		 690 if (netxen_function_zero(pdev)) {
691 if (!netxen_setup_msi_interrupts(adapter, num_msix))
692 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
693 else
694 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
695 } else {
696 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
697 netxen_setup_msi_interrupts(adapter, num_msix)) {
698 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
699 return -EIO;
700 }
701 }
a120e864 702
b37eb210
MC		 703 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
704 adapter->msix_entries[0].vector = pdev->irq;
705 dev_info(&pdev->dev, "using legacy interrupts\n");
706 }
707 return 0;
97daee83
DP		 708}
709
710static void
711netxen_teardown_intr(struct netxen_adapter *adapter)
712{
713 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
714 pci_disable_msix(adapter->pdev);
715 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
716 pci_disable_msi(adapter->pdev);
717}
718
719static void
720netxen_cleanup_pci_map(struct netxen_adapter *adapter)
721{
722 if (adapter->ahw.db_base != NULL)
723 iounmap(adapter->ahw.db_base);
724 if (adapter->ahw.pci_base0 != NULL)
725 iounmap(adapter->ahw.pci_base0);
726 if (adapter->ahw.pci_base1 != NULL)
727 iounmap(adapter->ahw.pci_base1);
728 if (adapter->ahw.pci_base2 != NULL)
729 iounmap(adapter->ahw.pci_base2);
730}
731
732static int
733netxen_setup_pci_map(struct netxen_adapter *adapter)
734{
97daee83
DP		 735 void __iomem *db_ptr = NULL;
736
71fb62fb 737 resource_size_t mem_base, db_base;
afbe5cd6 738 unsigned long mem_len, db_len = 0;
97daee83
DP		 739
740 struct pci_dev *pdev = adapter->pdev;
741 int pci_func = adapter->ahw.pci_func;
afbe5cd6 742 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 743
744 int err = 0;
745
746 /*
747 * Set the CRB window to invalid. If any register in window 0 is
748 * accessed it should set the window to 0 and then reset it to 1.
749 */
907fa120 750 adapter->ahw.crb_win = -1;
47abe356 751 adapter->ahw.ocm_win = -1;
97daee83
DP		 752
753 /* remap phys address */
754 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
755 mem_len = pci_resource_len(pdev, 0);
97daee83 756
97daee83
DP		 757 /* 128 Meg of memory */
758 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 759
760 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
761 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 762 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 763 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 764 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 765 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
766 ahw->pci_base2 == NULL) {
767 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
768 err = -EIO;
769 goto err_out;
770 }
771
772 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
773
97daee83 774 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 775
776 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
777 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 778 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 779 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
780 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
781 err = -EIO;
782 goto err_out;
783 }
784
97daee83 785 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 786
afbe5cd6
AKS		 787 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
788 if (ahw->pci_base0 == NULL) {
97daee83
DP		 789 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
790 return -EIO;
791 }
afbe5cd6 792 ahw->pci_len0 = mem_len;
97daee83
DP		 793 } else {
794 return -EIO;
795 }
796
195c5f98
AKS		 797 netxen_setup_hwops(adapter);
798
97daee83
DP		 799 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
800
6abb4b83
AKS		 801 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
802 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
803 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
804
805 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 806 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
807 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
808 }
809
97daee83
DP		 810 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
811 goto skip_doorbell;
812
813 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
814 db_len = pci_resource_len(pdev, 4);
815
816 if (db_len == 0) {
817 printk(KERN_ERR "%s: doorbell is disabled\n",
818 netxen_nic_driver_name);
819 err = -EIO;
820 goto err_out;
821 }
822
823 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
824 if (!db_ptr) {
825 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
826 netxen_nic_driver_name);
827 err = -EIO;
828 goto err_out;
829 }
830
831skip_doorbell:
832 adapter->ahw.db_base = db_ptr;
833 adapter->ahw.db_len = db_len;
834 return 0;
835
836err_out:
837 netxen_cleanup_pci_map(adapter);
838 return err;
839}
840
2b9e62ee
DP		 841static void
842netxen_check_options(struct netxen_adapter *adapter)
843{
83f18a55 844 u32 fw_major, fw_minor, fw_build, prev_fw_version;
2b9e62ee
DP		 845 char brd_name[NETXEN_MAX_SHORT_NAME];
846 char serial_num[32];
83f18a55 847 int i, offset, val, err;
06d6c108 848 __le32 *ptr32;
2b9e62ee
DP		 849 struct pci_dev *pdev = adapter->pdev;
850
851 adapter->driver_mismatch = 0;
852
06d6c108 853 ptr32 = (__le32 *)&serial_num;
2b9e62ee
DP		 854 offset = NX_FW_SERIAL_NUM_OFFSET;
855 for (i = 0; i < 8; i++) {
856 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
857 dev_err(&pdev->dev, "error reading board info\n");
858 adapter->driver_mismatch = 1;
859 return;
860 }
861 ptr32[i] = cpu_to_le32(val);
862 offset += sizeof(u32);
863 }
864
865 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
866 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
867 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 868 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 869 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
870
83f18a55
M		 871 /* Get FW Mini Coredump template and store it */
872 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
873 if (adapter->mdump.md_template == NULL ||
874 adapter->fw_version > prev_fw_version) {
875 kfree(adapter->mdump.md_template);
876 adapter->mdump.md_template = NULL;
877 err = netxen_setup_minidump(adapter);
878 if (err)
879 dev_err(&adapter->pdev->dev,
880 "Failed to setup minidump rcode = %d\n", err);
881 }
882 }
883
2b9e62ee 884 if (adapter->portnum == 0) {
b08a92bb
MC		 885 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
886 brd_name))
887 strcpy(serial_num, "Unknown");
2b9e62ee 888
c25c0b9b
DP		 889 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
890 module_name(THIS_MODULE),
2b9e62ee
DP		 891 brd_name, serial_num, adapter->ahw.revision_id);
892 }
893
894 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
895 adapter->driver_mismatch = 1;
896 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
897 fw_major, fw_minor, fw_build);
898 return;
899 }
900
901 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
902 i = NXRD32(adapter, NETXEN_SRE_MISC);
903 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
904 }
905
dc7551cb
MC		 906 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
907 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
908 adapter->ahw.cut_through ? "cut-through" : "legacy");
2b9e62ee
DP		 909
910 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
911 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
912
2b9e62ee
DP		 913 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
914 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
915 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
916 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
917 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
918 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
919 }
920
921 adapter->msix_supported = 0;
922 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
923 adapter->msix_supported = !!use_msi_x;
924 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 925 } else {
926 u32 flashed_ver = 0;
927 netxen_rom_fast_read(adapter,
928 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
929 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
930
931 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
932 switch (adapter->ahw.board_type) {
933 case NETXEN_BRDTYPE_P2_SB31_10G:
934 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
935 adapter->msix_supported = !!use_msi_x;
936 adapter->rss_supported = !!use_msi_x;
937 break;
938 default:
939 break;
940 }
2b9e62ee
DP		 941 }
942 }
943
944 adapter->num_txd = MAX_CMD_DESCRIPTORS;
945
946 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
947 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
948 adapter->max_rds_rings = 3;
949 } else {
950 adapter->num_lro_rxd = 0;
951 adapter->max_rds_rings = 2;
952 }
953}
954
ba599d4f 955static int
6a581e93 956netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 957{
958 int val, err, first_boot;
959 struct pci_dev *pdev = adapter->pdev;
960
2b9e62ee
DP		 961 /* required for NX2031 dummy dma */
962 err = nx_set_dma_mask(adapter);
963 if (err)
964 return err;
965
83f18a55
M		 966 err = netxen_can_start_firmware(adapter);
967
968 if (err < 0)
969 return err;
970
971 if (!err)
96f2ebd2 972 goto wait_init;
0b72e659 973
f98a9f69 974 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 975
976 err = netxen_check_hw_init(adapter, first_boot);
977 if (err) {
978 dev_err(&pdev->dev, "error in init HW init sequence\n");
979 return err;
980 }
981
6a581e93 982 netxen_request_firmware(adapter);
f7185c71 983
67c38fc6 984 err = netxen_need_fw_reset(adapter);
1dbc84a7 985 if (err < 0)
db4cfd8a 986 goto err_out;
1dbc84a7 987 if (err == 0)
e3feb266 988 goto pcie_strap_init;
67c38fc6 989
ba599d4f 990 if (first_boot != 0x55555555) {
f98a9f69 991 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 992 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 993 msleep(1);
994 }
567c6c4e 995
f98a9f69 996 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 997 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
999
567c6c4e
DP		 1000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1001 netxen_set_port_mode(adapter);
1002
db4cfd8a
DP		 1003 err = netxen_load_firmware(adapter);
1004 if (err)
1005 goto err_out;
ba599d4f 1006
6a581e93
DP		 1007 netxen_release_firmware(adapter);
1008
ba599d4f
DP		 1009 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1010
1011 /* Initialize multicast addr pool owners */
1012 val = 0x7654;
1e2d0059 1013 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 1014 val |= 0x0f000000;
f98a9f69 1015 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 1016
1017 }
1018
83ac51fa 1019 err = netxen_init_dummy_dma(adapter);
ba599d4f 1020 if (err)
db4cfd8a 1021 goto err_out;
ba599d4f
DP		 1022
1023 /*
1024 * Tell the hardware our version number.
1025 */
1026 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1027 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1028 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 1029 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 1030
e3feb266
RB		 1031pcie_strap_init:
1032 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1033 netxen_pcie_strap_init(adapter);
1034
96f2ebd2 1035wait_init:
ba599d4f
DP		 1036 /* Handshake with the card before we register the devices. */
1037 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1038 if (err) {
83ac51fa 1039 netxen_free_dummy_dma(adapter);
db4cfd8a 1040 goto err_out;
ba599d4f
DP		 1041 }
1042
8f9b3f69
AKS		 1043 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1044
68b3cae0
DP		 1045 nx_update_dma_mask(adapter);
1046
6a581e93 1047 netxen_check_options(adapter);
68b3cae0 1048
74c520da
AKS		 1049 adapter->need_fw_reset = 0;
1050
ec5c50cb 1051 /* fall through and release firmware */
db4cfd8a
DP		 1052
1053err_out:
1054 netxen_release_firmware(adapter);
1055 return err;
ba599d4f
DP		 1056}
1057
9f5bc7f1
DP		 1058static int
1059netxen_nic_request_irq(struct netxen_adapter *adapter)
1060{
1061 irq_handler_t handler;
d8b100c5
DP		 1062 struct nx_host_sds_ring *sds_ring;
1063 int err, ring;
1064
ab392d2d 1065 unsigned long flags = 0;
9f5bc7f1 1066 struct net_device *netdev = adapter->netdev;
d8b100c5 1067 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1068
9f5bc7f1
DP		 1069 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1070 handler = netxen_msix_intr;
1071 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1072 handler = netxen_msi_intr;
1073 else {
1074 flags |= IRQF_SHARED;
1075 handler = netxen_intr;
1076 }
1077 adapter->irq = netdev->irq;
1078
d8b100c5
DP		 1079 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1080 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1081 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1082 err = request_irq(sds_ring->irq, handler,
1083 flags, sds_ring->name, sds_ring);
1084 if (err)
1085 return err;
1086 }
1087
1088 return 0;
1089}
1090
1091static void
1092netxen_nic_free_irq(struct netxen_adapter *adapter)
1093{
1094 int ring;
1095 struct nx_host_sds_ring *sds_ring;
1096
1097 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1098
1099 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1100 sds_ring = &recv_ctx->sds_rings[ring];
1101 free_irq(sds_ring->irq, sds_ring);
1102 }
9f5bc7f1
DP		 1103}
1104
ca2ef330
DP		 1105static void
1106netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1107{
1108 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1109 adapter->coal.normal.data.rx_time_us =
1110 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1111 adapter->coal.normal.data.rx_packets =
1112 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1113 adapter->coal.normal.data.tx_time_us =
1114 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1115 adapter->coal.normal.data.tx_packets =
1116 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1117}
1118
6f771419 1119/* with rtnl_lock */
9f5bc7f1 1120static int
6f771419 1121__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1122{
1123 int err;
1124
db4cfd8a
DP		 1125 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1126 return -EIO;
1127
9f5bc7f1
DP		 1128 err = adapter->init_port(adapter, adapter->physical_port);
1129 if (err) {
1130 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1131 netxen_nic_driver_name, adapter->portnum);
1132 return err;
1133 }
3d0a3cc9 1134 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1135 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1136
3d0a3cc9
DP		 1137 adapter->set_multi(netdev);
1138 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1139
1140 adapter->ahw.linkup = 0;
9f5bc7f1 1141
d8b100c5
DP		 1142 if (adapter->max_sds_rings > 1)
1143 netxen_config_rss(adapter, 1);
9f5bc7f1 1144
ca2ef330
DP		 1145 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1146 netxen_config_intr_coalesce(adapter);
1147
e4baaf71 1148 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1149 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1150
b2af9cb0
DP		 1151 netxen_napi_enable(adapter);
1152
5103c9f7 1153 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1154 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1155 else
1156 netxen_nic_set_link_parameters(adapter);
1157
6a581e93 1158 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1159 return 0;
1160}
1161
6f771419
AKS		 1162/* Usage: During resume and firmware recovery module.*/
1163
1164static inline int
1165netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1166{
1167 int err = 0;
1168
1169 rtnl_lock();
1170 if (netif_running(netdev))
1171 err = __netxen_nic_up(adapter, netdev);
1172 rtnl_unlock();
1173
1174 return err;
1175}
1176
1177/* with rtnl_lock */
9f5bc7f1 1178static void
6f771419 1179__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1180{
db4cfd8a
DP		 1181 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1182 return;
1183
f2251f66
AKS		 1184 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1185 return;
6a581e93 1186
f2251f66 1187 smp_mb();
b2af9cb0 1188 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1189 netif_carrier_off(netdev);
b2af9cb0 1190 netif_tx_disable(netdev);
9f5bc7f1 1191
d478af0d
SC		 1192 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1193 netxen_linkevent_request(adapter, 0);
1194
9f5bc7f1
DP		 1195 if (adapter->stop_port)
1196 adapter->stop_port(adapter);
1197
5cf4d323
DP		 1198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1199 netxen_p3_free_mac_list(adapter);
1200
22b5794b
AKS		 1201 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1202
be339aee
DP		 1203 netxen_napi_disable(adapter);
1204
9f5bc7f1 1205 netxen_release_tx_buffers(adapter);
b2af9cb0 1206 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1207}
1208
6f771419
AKS		 1209/* Usage: During suspend and firmware recovery module */
1210
1211static inline void
1212netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1213{
1214 rtnl_lock();
1215 if (netif_running(netdev))
1216 __netxen_nic_down(adapter, netdev);
1217 rtnl_unlock();
1218
1219}
9f5bc7f1
DP		 1220
1221static int
1222netxen_nic_attach(struct netxen_adapter *adapter)
1223{
1224 struct net_device *netdev = adapter->netdev;
1225 struct pci_dev *pdev = adapter->pdev;
becf46a0 1226 int err, ring;
d8b100c5 1227 struct nx_host_rds_ring *rds_ring;
d877f1e3 1228 struct nx_host_tx_ring *tx_ring;
01da0c2b 1229 u32 capab2;
9f5bc7f1 1230
7042cd8f
AKS		 1231 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1232 return 0;
1233
9f5bc7f1 1234 err = netxen_init_firmware(adapter);
232e7d68
DP		 1235 if (err)
1236 return err;
1237
01da0c2b
RB		 1238 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1239 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1240 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1241 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1242 adapter->flags |= NETXEN_FW_MSS_CAP;
1243 }
1244
232e7d68
DP		 1245 err = netxen_napi_add(adapter, netdev);
1246 if (err)
1247 return err;
9f5bc7f1 1248
9f5bc7f1
DP		 1249 err = netxen_alloc_sw_resources(adapter);
1250 if (err) {
1251 printk(KERN_ERR "%s: Error in setting sw resources\n",
1252 netdev->name);
1253 return err;
1254 }
1255
9f5bc7f1
DP		 1256 err = netxen_alloc_hw_resources(adapter);
1257 if (err) {
1258 printk(KERN_ERR "%s: Error in setting hw resources\n",
1259 netdev->name);
1260 goto err_out_free_sw;
1261 }
1262
4f96b988 1263 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1264 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1265 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1266 crb_cmd_producer[adapter->portnum]);
1267 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1268 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1269
cb2107be
DP		 1270 tx_ring->producer = 0;
1271 tx_ring->sw_consumer = 0;
1272
1273 netxen_nic_update_cmd_producer(adapter, tx_ring);
1274 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1275 }
1276
d8b100c5
DP		 1277 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1278 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1279 netxen_post_rx_buffers(adapter, ring, rds_ring);
1280 }
9f5bc7f1
DP		 1281
1282 err = netxen_nic_request_irq(adapter);
1283 if (err) {
1284 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1285 netdev->name);
1286 goto err_out_free_rxbuf;
1287 }
1288
ca2ef330
DP		 1289 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1290 netxen_nic_init_coalesce_defaults(adapter);
1291
fa3ce355
NK		 1292 netxen_create_sysfs_entries(adapter);
1293
9f5bc7f1
DP		 1294 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1295 return 0;
1296
1297err_out_free_rxbuf:
1298 netxen_release_rx_buffers(adapter);
1299 netxen_free_hw_resources(adapter);
1300err_out_free_sw:
1301 netxen_free_sw_resources(adapter);
1302 return err;
1303}
1304
1305static void
1306netxen_nic_detach(struct netxen_adapter *adapter)
1307{
7042cd8f
AKS		 1308 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1309 return;
1310
fa3ce355
NK		 1311 netxen_remove_sysfs_entries(adapter);
1312
9f5bc7f1 1313 netxen_free_hw_resources(adapter);
cf981ffb 1314 netxen_release_rx_buffers(adapter);
be339aee 1315 netxen_nic_free_irq(adapter);
232e7d68 1316 netxen_napi_del(adapter);
9f5bc7f1
DP		 1317 netxen_free_sw_resources(adapter);
1318
1319 adapter->is_up = 0;
1320}
1321
7042cd8f
AKS		 1322int
1323netxen_nic_reset_context(struct netxen_adapter *adapter)
1324{
1325 int err = 0;
1326 struct net_device *netdev = adapter->netdev;
1327
6a581e93
DP		 1328 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1329 return -EBUSY;
1330
7042cd8f
AKS		 1331 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1332
6a581e93
DP		 1333 netif_device_detach(netdev);
1334
7042cd8f 1335 if (netif_running(netdev))
6f771419 1336 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1337
1338 netxen_nic_detach(adapter);
1339
6a581e93
DP		 1340 if (netif_running(netdev)) {
1341 err = netxen_nic_attach(adapter);
1342 if (!err)
6f771419 1343 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1344
6a581e93
DP		 1345 if (err)
1346 goto done;
1347 }
1348
1349 netif_device_attach(netdev);
7042cd8f 1350 }
6a581e93 1351
7042cd8f 1352done:
6a581e93 1353 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1354 return err;
1355}
1356
f17443f4
DP		 1357static int
1358netxen_setup_netdev(struct netxen_adapter *adapter,
1359 struct net_device *netdev)
1360{
1361 int err = 0;
1362 struct pci_dev *pdev = adapter->pdev;
1363
f17443f4
DP		 1364 adapter->mc_enabled = 0;
1365 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1366 adapter->max_mc_count = 38;
1367 else
1368 adapter->max_mc_count = 16;
1369
1370 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1371 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1372
1373 netxen_nic_change_mtu(netdev, netdev->mtu);
1374
1375 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1376
066413da
MM		 1377 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1378 NETIF_F_RXCSUM;
f17443f4 1379
066413da
MM		 1380 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1381 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1382
1383 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1384
1385 if (adapter->pci_using_dac) {
1386 netdev->features |= NETIF_F_HIGHDMA;
1387 netdev->vlan_features |= NETIF_F_HIGHDMA;
1388 }
1389
028afe71 1390 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
f646968f 1391 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
028afe71 1392
1bb482f8 1393 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1394 netdev->hw_features |= NETIF_F_LRO;
1395
1396 netdev->features |= netdev->hw_features;
1bb482f8 1397
f17443f4
DP		 1398 netdev->irq = adapter->msix_entries[0].vector;
1399
74c520da 1400 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1401
1402 if (netxen_read_mac_addr(adapter))
1403 dev_warn(&pdev->dev, "failed to read mac addr\n");
1404
1405 netif_carrier_off(netdev);
f17443f4
DP		 1406
1407 err = register_netdev(netdev);
1408 if (err) {
1409 dev_err(&pdev->dev, "failed to register net device\n");
1410 return err;
1411 }
1412
1413 return 0;
1414}
1415
5e7856b3
SS		 1416#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1417#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1418
1419static void netxen_read_ula_info(struct netxen_adapter *adapter)
1420{
1421 u32 temp;
1422
1423 /* Print ULA info only once for an adapter */
1424 if (adapter->portnum != 0)
1425 return;
1426
1427 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1428 switch (temp) {
1429 case NETXEN_ULA_ADAPTER_KEY:
1430 dev_info(&adapter->pdev->dev, "ULA adapter");
1431 break;
1432 case NETXEN_NON_ULA_ADAPTER_KEY:
1433 dev_info(&adapter->pdev->dev, "non ULA adapter");
1434 break;
1435 default:
1436 break;
1437 }
1438
1439 return;
1440}
1441
dce87b96 1442#ifdef CONFIG_PCIEAER
1443static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1444{
1445 struct pci_dev *pdev = adapter->pdev;
1446 struct pci_dev *root = pdev->bus->self;
1447 u32 aer_pos;
1448
e4d1aa40
NA		 1449 /* root bus? */
1450 if (!root)
1451 return;
1452
dce87b96 1453 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1454 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1455 return;
1456
62f87c0e 1457 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
dce87b96 1458 return;
1459
1460 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1461 if (!aer_pos)
1462 return;
1463
1464 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1465}
1466#endif
1467
c3f9c88c 1468static int
3d396eb1
AK		 1469netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1470{
1471 struct net_device *netdev = NULL;
1472 struct netxen_adapter *adapter = NULL;
2956640d 1473 int i = 0, err;
3176ff3e 1474 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1475 uint8_t revision_id;
5a6f95e6 1476 u32 val;
3d396eb1 1477
688328c7
EB		 1478 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1479 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1480 "will not be enabled.\n",
c25c0b9b 1481 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1482 return -ENODEV;
1483 }
1484
3d396eb1
AK		 1485 if ((err = pci_enable_device(pdev)))
1486 return err;
2956640d 1487
3d396eb1
AK		 1488 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1489 err = -ENODEV;
1490 goto err_out_disable_pdev;
1491 }
1492
1493 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1494 goto err_out_disable_pdev;
1495
e87ad553
AKS		 1496 if (NX_IS_REVISION_P3(pdev->revision))
1497 pci_enable_pcie_error_reporting(pdev);
1498
3d396eb1 1499 pci_set_master(pdev);
3176ff3e
MT		 1500
1501 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1502 if(!netdev) {
f17443f4 1503 err = -ENOMEM;
3176ff3e
MT		 1504 goto err_out_free_res;
1505 }
1506
3176ff3e
MT		 1507 SET_NETDEV_DEV(netdev, &pdev->dev);
1508
4cf1653a 1509 adapter = netdev_priv(netdev);
2956640d
DP		 1510 adapter->netdev = netdev;
1511 adapter->pdev = pdev;
13ba9c77 1512 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1513
1514 revision_id = pdev->revision;
1515 adapter->ahw.revision_id = revision_id;
1516
f03b0ebd
DP		 1517 rwlock_init(&adapter->ahw.crb_lock);
1518 spin_lock_init(&adapter->ahw.mem_lock);
1519
d8b100c5 1520 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1521 INIT_LIST_HEAD(&adapter->mac_list);
8a7fbfab 1522 INIT_LIST_HEAD(&adapter->ip_list);
3ce06a32 1523
97daee83
DP		 1524 err = netxen_setup_pci_map(adapter);
1525 if (err)
6c80b18d 1526 goto err_out_free_netdev;
3d396eb1 1527
2d1a3bbd 1528 /* This will be reset for mezz cards */
3176ff3e 1529 adapter->portnum = pci_func_id;
3176ff3e 1530
f17443f4
DP		 1531 err = netxen_nic_get_board_info(adapter);
1532 if (err) {
1533 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1534 goto err_out_iounmap;
1535 }
6c80b18d 1536
dce87b96 1537#ifdef CONFIG_PCIEAER
1538 netxen_mask_aer_correctable(adapter);
1539#endif
1540
13ba9c77 1541 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1542 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1543 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1544 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1545 if (pci_func_id >= 2)
13ba9c77 1546 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1547 break;
1548 default:
1549 break;
1550 }
13ba9c77 1551
e933d019
AKS		 1552 err = netxen_check_flash_fw_compatibility(adapter);
1553 if (err)
1554 goto err_out_iounmap;
1555
5a6f95e6
RB		 1556 if (adapter->portnum == 0) {
1557 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1558 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1559 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1560 adapter->need_fw_reset = 1;
1561 }
1562 }
1563
6a581e93 1564 err = netxen_start_firmware(adapter);
0b72e659 1565 if (err)
8f9b3f69 1566 goto err_out_decr_ref;
f17443f4 1567
3d396eb1 1568 /*
6c80b18d 1569 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1570 */
dcd56fdb 1571 adapter->physical_port = adapter->portnum;
4f96b988 1572 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1573 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1574 if (i != 0x55555555)
1575 adapter->physical_port = i;
1576 }
6c80b18d 1577
6a581e93 1578 netxen_nic_clear_stats(adapter);
2956640d 1579
b37eb210
MC		 1580 err = netxen_setup_intr(adapter);
1581
1582 if (err) {
1583 dev_err(&adapter->pdev->dev,
1584 "Failed to setup interrupts, error = %d\n", err);
1585 goto err_out_disable_msi;
1586 }
2956640d 1587
5e7856b3
SS		 1588 netxen_read_ula_info(adapter);
1589
f17443f4 1590 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1591 if (err)
2956640d 1592 goto err_out_disable_msi;
6c80b18d
MT		 1593
1594 pci_set_drvdata(pdev, adapter);
3d396eb1 1595
6a581e93
DP		 1596 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1597
1e2d0059 1598 switch (adapter->ahw.port_type) {
2956640d
DP		 1599 case NETXEN_NIC_GBE:
1600 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1601 adapter->netdev->name);
1602 break;
1603 case NETXEN_NIC_XGBE:
1604 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1605 adapter->netdev->name);
1606 break;
3d396eb1 1607 }
3d396eb1 1608
70f9cf89
DP		 1609 netxen_create_diag_entries(adapter);
1610
2956640d
DP		 1611 return 0;
1612
1613err_out_disable_msi:
97daee83 1614 netxen_teardown_intr(adapter);
6c80b18d 1615
83ac51fa 1616 netxen_free_dummy_dma(adapter);
3d396eb1 1617
8f9b3f69 1618err_out_decr_ref:
6a581e93
DP		 1619 nx_decr_dev_ref_cnt(adapter);
1620
2956640d 1621err_out_iounmap:
97daee83 1622 netxen_cleanup_pci_map(adapter);
cb8011ad 1623
6c80b18d
MT		 1624err_out_free_netdev:
1625 free_netdev(netdev);
1626
1627err_out_free_res:
3d396eb1 1628 pci_release_regions(pdev);
6c80b18d
MT		 1629
1630err_out_disable_pdev:
3d396eb1
AK		 1631 pci_disable_device(pdev);
1632 return err;
1633}
1634
83f18a55
M		 1635static
1636void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1637{
1638 kfree(adapter->mdump.md_template);
1639 adapter->mdump.md_template = NULL;
1640
1641 if (adapter->mdump.md_capture_buff) {
1642 vfree(adapter->mdump.md_capture_buff);
1643 adapter->mdump.md_capture_buff = NULL;
1644 }
1645}
1646
c3f9c88c 1647static void netxen_nic_remove(struct pci_dev *pdev)
3d396eb1
AK		 1648{
1649 struct netxen_adapter *adapter;
3176ff3e 1650 struct net_device *netdev;
3d396eb1 1651
6c80b18d 1652 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1653 if (adapter == NULL)
1654 return;
1655
6c80b18d
MT		 1656 netdev = adapter->netdev;
1657
6a581e93
DP		 1658 netxen_cancel_fw_work(adapter);
1659
96acb6eb
DP		 1660 unregister_netdev(netdev);
1661
e424fa9d
AKS		 1662 cancel_work_sync(&adapter->tx_timeout_task);
1663
8a7fbfab 1664 netxen_free_ip_list(adapter, false);
7042cd8f 1665 netxen_nic_detach(adapter);
3d396eb1 1666
6a581e93
DP		 1667 nx_decr_dev_ref_cnt(adapter);
1668
439b454e 1669 if (adapter->portnum == 0)
83ac51fa 1670 netxen_free_dummy_dma(adapter);
96acb6eb 1671
6a581e93
DP		 1672 clear_bit(__NX_RESETTING, &adapter->state);
1673
97daee83 1674 netxen_teardown_intr(adapter);
b37eb210 1675 netxen_set_interrupt_mode(adapter, 0);
70f9cf89
DP		 1676 netxen_remove_diag_entries(adapter);
1677
97daee83 1678 netxen_cleanup_pci_map(adapter);
595e3fb8 1679
f7185c71
DP		 1680 netxen_release_firmware(adapter);
1681
83f18a55
M		 1682 if (NX_IS_REVISION_P3(pdev->revision)) {
1683 netxen_cleanup_minidump(adapter);
e87ad553 1684 pci_disable_pcie_error_reporting(pdev);
83f18a55 1685 }
e87ad553 1686
595e3fb8 1687 pci_release_regions(pdev);
3052246c 1688 pci_disable_device(pdev);
595e3fb8 1689
6c80b18d 1690 free_netdev(netdev);
3d396eb1 1691}
e87ad553
AKS		 1692
1693static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1694{
0b72e659
DP		 1695 struct net_device *netdev = adapter->netdev;
1696
1697 netif_device_detach(netdev);
1698
6a581e93
DP		 1699 netxen_cancel_fw_work(adapter);
1700
0b72e659
DP		 1701 if (netif_running(netdev))
1702 netxen_nic_down(adapter, netdev);
1703
e424fa9d
AKS		 1704 cancel_work_sync(&adapter->tx_timeout_task);
1705
7042cd8f 1706 netxen_nic_detach(adapter);
0b72e659 1707
22b5794b
AKS		 1708 if (adapter->portnum == 0)
1709 netxen_free_dummy_dma(adapter);
1710
6a581e93
DP		 1711 nx_decr_dev_ref_cnt(adapter);
1712
1713 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1714}
0b72e659 1715
e87ad553 1716static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1717{
1718 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1719 struct net_device *netdev = adapter->netdev;
1720 int err;
1721
0b72e659
DP		 1722 err = pci_enable_device(pdev);
1723 if (err)
1724 return err;
1725
bc86fcba
AKS		 1726 pci_set_power_state(pdev, PCI_D0);
1727 pci_set_master(pdev);
1728 pci_restore_state(pdev);
1729
907fa120 1730 adapter->ahw.crb_win = -1;
47abe356 1731 adapter->ahw.ocm_win = -1;
0b72e659 1732
6a581e93 1733 err = netxen_start_firmware(adapter);
0b72e659
DP		 1734 if (err) {
1735 dev_err(&pdev->dev, "failed to start firmware\n");
1736 return err;
1737 }
1738
1739 if (netif_running(netdev)) {
1740 err = netxen_nic_attach(adapter);
1741 if (err)
6a581e93 1742 goto err_out;
0b72e659
DP		 1743
1744 err = netxen_nic_up(adapter, netdev);
1745 if (err)
6a581e93 1746 goto err_out_detach;
0b72e659 1747
57569d0e 1748 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1749 }
1750
bc86fcba 1751 netif_device_attach(netdev);
6a581e93 1752 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1753 return 0;
6a581e93
DP		 1754
1755err_out_detach:
1756 netxen_nic_detach(adapter);
1757err_out:
1758 nx_decr_dev_ref_cnt(adapter);
1759 return err;
0b72e659 1760}
e87ad553
AKS		 1761
1762static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1763 pci_channel_state_t state)
1764{
1765 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1766
1767 if (state == pci_channel_io_perm_failure)
1768 return PCI_ERS_RESULT_DISCONNECT;
1769
1770 if (nx_dev_request_aer(adapter))
1771 return PCI_ERS_RESULT_RECOVERED;
1772
1773 netxen_nic_detach_func(adapter);
1774
1775 pci_disable_device(pdev);
1776
1777 return PCI_ERS_RESULT_NEED_RESET;
1778}
1779
1780static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1781{
1782 int err = 0;
1783
1784 err = netxen_nic_attach_func(pdev);
1785
1786 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1787}
1788
1789static void netxen_io_resume(struct pci_dev *pdev)
1790{
1791 pci_cleanup_aer_uncorrect_error_status(pdev);
1792}
1793
1794static void netxen_nic_shutdown(struct pci_dev *pdev)
1795{
1796 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1797
1798 netxen_nic_detach_func(adapter);
1799
1800 if (pci_save_state(pdev))
1801 return;
1802
1803 if (netxen_nic_wol_supported(adapter)) {
1804 pci_enable_wake(pdev, PCI_D3cold, 1);
1805 pci_enable_wake(pdev, PCI_D3hot, 1);
1806 }
1807
1808 pci_disable_device(pdev);
1809}
1810
1811#ifdef CONFIG_PM
1812static int
1813netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1814{
1815 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1816 int retval;
1817
1818 netxen_nic_detach_func(adapter);
1819
1820 retval = pci_save_state(pdev);
1821 if (retval)
1822 return retval;
1823
1824 if (netxen_nic_wol_supported(adapter)) {
1825 pci_enable_wake(pdev, PCI_D3cold, 1);
1826 pci_enable_wake(pdev, PCI_D3hot, 1);
1827 }
1828
1829 pci_disable_device(pdev);
1830 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1831
1832 return 0;
1833}
1834
1835static int
1836netxen_nic_resume(struct pci_dev *pdev)
1837{
1838 return netxen_nic_attach_func(pdev);
1839}
01542cd1 1840#endif
0b72e659 1841
3d396eb1
AK		 1842static int netxen_nic_open(struct net_device *netdev)
1843{
4cf1653a 1844 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1845 int err = 0;
3d396eb1 1846
dcd56fdb
DP		 1847 if (adapter->driver_mismatch)
1848 return -EIO;
1849
7042cd8f
AKS		 1850 err = netxen_nic_attach(adapter);
1851 if (err)
1852 return err;
2956640d 1853
6f771419 1854 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1855 if (err)
1856 goto err_out;
05aaa02d 1857
dcd56fdb 1858 netif_start_queue(netdev);
3d396eb1
AK		 1859
1860 return 0;
2956640d 1861
9f5bc7f1
DP		 1862err_out:
1863 netxen_nic_detach(adapter);
2956640d 1864 return err;
3d396eb1
AK		 1865}
1866
1867/*
1868 * netxen_nic_close - Disables a network interface entry point
1869 */
1870static int netxen_nic_close(struct net_device *netdev)
1871{
3176ff3e 1872 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1873
6f771419 1874 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1875 return 0;
1876}
1877
1bcfd790
DP		 1878static void
1879netxen_tso_check(struct net_device *netdev,
1880 struct nx_host_tx_ring *tx_ring,
1881 struct cmd_desc_type0 *first_desc,
1882 struct sk_buff *skb)
cd1f8160 1883{
391587c3 1884 u8 opcode = TX_ETHER_PKT;
cdff1036 1885 __be16 protocol = skb->protocol;
028afe71 1886 u16 flags = 0, vid = 0;
1bcfd790 1887 u32 producer;
028afe71 1888 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1889 struct cmd_desc_type0 *hwdesc;
028afe71 1890 struct vlan_ethhdr *vh;
cdff1036 1891
09640e63 1892 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1893
1894 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1895 protocol = vh->h_vlan_encapsulated_proto;
1896 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1897
1898 } else if (vlan_tx_tag_present(skb)) {
028afe71
DP		 1899 flags = FLAGS_VLAN_OOB;
1900 vid = vlan_tx_tag_get(skb);
1901 netxen_set_tx_vlan_tci(first_desc, vid);
1902 vlan_oob = 1;
cdff1036 1903 }
cd1f8160 1904
391587c3
DP		 1905 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1906 skb_shinfo(skb)->gso_size > 0) {
1907
1bcfd790
DP		 1908 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1909
1910 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1911 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1912 if (vlan_oob) {
1913 first_desc->total_hdr_length += VLAN_HLEN;
1914 first_desc->tcp_hdr_offset = VLAN_HLEN;
1915 first_desc->ip_hdr_offset = VLAN_HLEN;
1916 /* Only in case of TSO on vlan device */
1917 flags |= FLAGS_VLAN_TAGGED;
1918 }
391587c3 1919
09640e63 1920 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1921 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1922 tso = 1;
cd1f8160
DP		 1923
1924 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1925 u8 l4proto;
1926
09640e63 1927 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1928 l4proto = ip_hdr(skb)->protocol;
1929
1930 if (l4proto == IPPROTO_TCP)
1931 opcode = TX_TCP_PKT;
1932 else if(l4proto == IPPROTO_UDP)
1933 opcode = TX_UDP_PKT;
09640e63 1934 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1935 l4proto = ipv6_hdr(skb)->nexthdr;
1936
1937 if (l4proto == IPPROTO_TCP)
1938 opcode = TX_TCPV6_PKT;
1939 else if(l4proto == IPPROTO_UDP)
1940 opcode = TX_UDPV6_PKT;
1941 }
cd1f8160 1942 }
028afe71
DP		 1943
1944 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1945 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1946 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1947
1948 if (!tso)
1949 return;
1950
1951 /* For LSO, we need to copy the MAC/IP/TCP headers into
1952 * the descriptor ring
1953 */
1954 producer = tx_ring->producer;
1955 copied = 0;
1956 offset = 2;
1957
028afe71
DP		 1958 if (vlan_oob) {
1959 /* Create a TSO vlan header template for firmware */
1960
1961 hwdesc = &tx_ring->desc_head[producer];
1962 tx_ring->cmd_buf_arr[producer].skb = NULL;
1963
1964 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1965 hdr_len + VLAN_HLEN);
1966
1967 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1968 skb_copy_from_linear_data(skb, vh, 12);
1969 vh->h_vlan_proto = htons(ETH_P_8021Q);
1970 vh->h_vlan_TCI = htons(vid);
1971 skb_copy_from_linear_data_offset(skb, 12,
1972 (char *)vh + 16, copy_len - 16);
1973
545eb370 1974 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1975 offset = 0;
1976
1977 producer = get_next_index(producer, tx_ring->num_desc);
1978 }
1979
1bcfd790
DP		 1980 while (copied < hdr_len) {
1981
1982 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1983 (hdr_len - copied));
1984
1985 hwdesc = &tx_ring->desc_head[producer];
1986 tx_ring->cmd_buf_arr[producer].skb = NULL;
1987
1988 skb_copy_from_linear_data_offset(skb, copied,
1989 (char *)hwdesc + offset, copy_len);
1990
1991 copied += copy_len;
1992 offset = 0;
1993
1994 producer = get_next_index(producer, tx_ring->num_desc);
1995 }
1996
1997 tx_ring->producer = producer;
1998 barrier();
cd1f8160
DP		 1999}
2000
ce644ed4
DP		 2001static int
2002netxen_map_tx_skb(struct pci_dev *pdev,
2003 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 2004{
ce644ed4
DP		 2005 struct netxen_skb_frag *nf;
2006 struct skb_frag_struct *frag;
2007 int i, nr_frags;
2008 dma_addr_t map;
2009
2010 nr_frags = skb_shinfo(skb)->nr_frags;
2011 nf = &pbuf->frag_array[0];
2012
2013 map = pci_map_single(pdev, skb->data,
2014 skb_headlen(skb), PCI_DMA_TODEVICE);
2015 if (pci_dma_mapping_error(pdev, map))
2016 goto out_err;
6f703406 2017
ce644ed4
DP		 2018 nf->dma = map;
2019 nf->length = skb_headlen(skb);
2020
2021 for (i = 0; i < nr_frags; i++) {
2022 frag = &skb_shinfo(skb)->frags[i];
2023 nf = &pbuf->frag_array[i+1];
2024
9e903e08 2025 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 2026 DMA_TO_DEVICE);
2027 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 2028 goto unwind;
2029
2030 nf->dma = map;
9e903e08 2031 nf->length = skb_frag_size(frag);
ce644ed4
DP		 2032 }
2033
2034 return 0;
6f703406 2035
ce644ed4 2036unwind:
cf503e8f
DP		 2037 while (--i >= 0) {
2038 nf = &pbuf->frag_array[i+1];
ce644ed4 2039 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
a05948f2 2040 nf->dma = 0ULL;
6f703406 2041 }
ce644ed4
DP		 2042
2043 nf = &pbuf->frag_array[0];
2044 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
a05948f2 2045 nf->dma = 0ULL;
ce644ed4
DP		 2046
2047out_err:
2048 return -ENOMEM;
6f703406
DP		 2049}
2050
d32cc3d2
DP		 2051static inline void
2052netxen_clear_cmddesc(u64 *desc)
2053{
1bcfd790
DP		 2054 desc[0] = 0ULL;
2055 desc[2] = 0ULL;
d32cc3d2
DP		 2056}
2057
61357325 2058static netdev_tx_t
d32cc3d2 2059netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 2060{
3176ff3e 2061 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 2062 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 2063 struct netxen_cmd_buffer *pbuf;
3d396eb1 2064 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 2065 struct cmd_desc_type0 *hwdesc, *first_desc;
2066 struct pci_dev *pdev;
391587c3 2067 int i, k;
c968bdf6 2068 int delta = 0;
2069 struct skb_frag_struct *frag;
3d396eb1 2070
cb2107be 2071 u32 producer;
ce644ed4 2072 int frag_count, no_of_desc;
d877f1e3 2073 u32 num_txd = tx_ring->num_desc;
3d396eb1 2074
3d396eb1
AK		 2075 frag_count = skb_shinfo(skb)->nr_frags + 1;
2076
c968bdf6 2077 /* 14 frags supported for normal packet and
2078 * 32 frags supported for TSO packet
2079 */
2080 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2081
2082 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2083 frag = &skb_shinfo(skb)->frags[i];
9e903e08 2084 delta += skb_frag_size(frag);
c968bdf6 2085 }
2086
2087 if (!__pskb_pull_tail(skb, delta))
2088 goto drop_packet;
2089
2090 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2091 }
d877f1e3 2092 /* 4 fragments per cmd des */
3d396eb1 2093 no_of_desc = (frag_count + 3) >> 2;
53a01e00 2094
7a9905e6 2095 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2096 netif_stop_queue(netdev);
7a9905e6
RB		 2097 smp_mb();
2098 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2099 netif_start_queue(netdev);
2100 else
2101 return NETDEV_TX_BUSY;
53a01e00 2102 }
3d396eb1 2103
cb2107be 2104 producer = tx_ring->producer;
ce644ed4 2105 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2106
1bcfd790 2107 pdev = adapter->pdev;
391587c3 2108
ce644ed4 2109 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2110 goto drop_packet;
391587c3 2111
3d396eb1 2112 pbuf->skb = skb;
3d396eb1 2113 pbuf->frag_count = frag_count;
6f703406 2114
1bcfd790
DP		 2115 first_desc = hwdesc = &tx_ring->desc_head[producer];
2116 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2117
ce644ed4
DP		 2118 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2119 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2120
ce644ed4 2121 for (i = 0; i < frag_count; i++) {
3d396eb1 2122
ce644ed4
DP		 2123 k = i % 4;
2124
2125 if ((k == 0) && (i > 0)) {
2126 /* move to next desc.*/
ba53e6b4 2127 producer = get_next_index(producer, num_txd);
d877f1e3 2128 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2129 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2130 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2131 }
3d396eb1 2132
ce644ed4 2133 buffrag = &pbuf->frag_array[i];
3d396eb1 2134
ce644ed4 2135 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2136 switch (k) {
2137 case 0:
ce644ed4 2138 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2139 break;
2140 case 1:
ce644ed4 2141 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2142 break;
2143 case 2:
ce644ed4 2144 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2145 break;
2146 case 3:
ce644ed4 2147 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2148 break;
2149 }
3d396eb1 2150 }
ce644ed4 2151
1bcfd790 2152 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2153
1bcfd790 2154 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2155
1bcfd790 2156 adapter->stats.txbytes += skb->len;
ba53e6b4 2157 adapter->stats.xmitcalled++;
3d396eb1 2158
c82b9d7f
ED		 2159 netxen_nic_update_cmd_producer(adapter, tx_ring);
2160
3d396eb1 2161 return NETDEV_TX_OK;
6f703406
DP		 2162
2163drop_packet:
2164 adapter->stats.txdropped++;
2165 dev_kfree_skb_any(skb);
2166 return NETDEV_TX_OK;
3d396eb1
AK		 2167}
2168
a97342f9
DP		 2169static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2170{
2171 struct net_device *netdev = adapter->netdev;
2172 uint32_t temp, temp_state, temp_val;
2173 int rv = 0;
2174
f98a9f69 2175 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2176
2177 temp_state = nx_get_temp_state(temp);
2178 temp_val = nx_get_temp_val(temp);
2179
2180 if (temp_state == NX_TEMP_PANIC) {
2181 printk(KERN_ALERT
2182 "%s: Device temperature %d degrees C exceeds"
2183 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2184 netdev->name, temp_val);
a97342f9
DP		 2185 rv = 1;
2186 } else if (temp_state == NX_TEMP_WARN) {
2187 if (adapter->temp == NX_TEMP_NORMAL) {
2188 printk(KERN_ALERT
2189 "%s: Device temperature %d degrees C "
2190 "exceeds operating range."
2191 " Immediate action needed.\n",
e4135c2d 2192 netdev->name, temp_val);
a97342f9
DP		 2193 }
2194 } else {
2195 if (adapter->temp == NX_TEMP_WARN) {
2196 printk(KERN_INFO
2197 "%s: Device temperature is now %d degrees C"
e4135c2d 2198 " in normal range.\n", netdev->name,
a97342f9
DP		 2199 temp_val);
2200 }
2201 }
2202 adapter->temp = temp_state;
2203 return rv;
2204}
2205
3bf26ce3 2206void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2207{
2208 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2209
2210 if (adapter->ahw.linkup && !linkup) {
2211 printk(KERN_INFO "%s: %s NIC Link is down\n",
2212 netxen_nic_driver_name, netdev->name);
2213 adapter->ahw.linkup = 0;
2214 if (netif_running(netdev)) {
2215 netif_carrier_off(netdev);
2216 netif_stop_queue(netdev);
2217 }
e424fa9d 2218 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2219 } else if (!adapter->ahw.linkup && linkup) {
2220 printk(KERN_INFO "%s: %s NIC Link is up\n",
2221 netxen_nic_driver_name, netdev->name);
2222 adapter->ahw.linkup = 1;
2223 if (netif_running(netdev)) {
2224 netif_carrier_on(netdev);
2225 netif_wake_queue(netdev);
2226 }
e424fa9d 2227 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2228 }
2229}
2230
3bf26ce3
DP		 2231static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2232{
2233 u32 val, port, linkup;
2234
2235 port = adapter->physical_port;
2236
2237 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2238 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2239 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2240 linkup = (val == XG_LINK_UP_P3);
2241 } else {
f98a9f69 2242 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2243 val = (val >> port*8) & 0xff;
2244 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2245 }
2246
2247 netxen_advert_link_change(adapter, linkup);
2248}
2249
3d396eb1
AK		 2250static void netxen_tx_timeout(struct net_device *netdev)
2251{
e424fa9d 2252 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2253
6a581e93
DP		 2254 if (test_bit(__NX_RESETTING, &adapter->state))
2255 return;
2256
f17443f4 2257 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2258 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2259}
2260
74c520da 2261static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2262{
4790654c 2263 struct netxen_adapter *adapter =
3176ff3e 2264 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2265
b2af9cb0
DP		 2266 if (!netif_running(adapter->netdev))
2267 return;
2268
74c520da 2269 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2270 return;
2271
74c520da
AKS		 2272 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2273 goto request_reset;
2274
16d884bd 2275 rtnl_lock();
74c520da
AKS		 2276 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2277 /* try to scrub interrupt */
2278 netxen_napi_disable(adapter);
ba53e6b4 2279
74c520da
AKS		 2280 netxen_napi_enable(adapter);
2281
2282 netif_wake_queue(adapter->netdev);
2283
a598ae17 2284 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2285 } else {
a598ae17 2286 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2287 if (netxen_nic_reset_context(adapter)) {
2288 rtnl_unlock();
2289 goto request_reset;
74c520da 2290 }
74c520da 2291 }
16d884bd
AKS		 2292 adapter->netdev->trans_start = jiffies;
2293 rtnl_unlock();
2294 return;
74c520da
AKS		 2295
2296request_reset:
2297 adapter->need_fw_reset = 1;
ff8a306d 2298 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2299}
2300
47fd428c 2301static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2302 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2303{
2304 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2305
1bb482f8 2306 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2307 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2308 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2309 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2310 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2311 stats->tx_dropped = adapter->stats.txdropped;
2312
2313 return stats;
2314}
2315
e4c93c81 2316static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2317{
d8b100c5
DP		 2318 struct nx_host_sds_ring *sds_ring = data;
2319 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2320 u32 status = 0;
2321
195c5f98 2322 status = readl(adapter->isr_int_vec);
d71e1be8 2323
195c5f98 2324 if (!(status & adapter->int_vec_bit))
05aaa02d 2325 return IRQ_NONE;
e01872af 2326
195c5f98 2327 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2328 /* check interrupt state machine, to be sure */
195c5f98 2329 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2330 if (!ISR_LEGACY_INT_TRIGGERED(status))
2331 return IRQ_NONE;
2332
092bc571
DP		 2333 } else {
2334 unsigned long our_int = 0;
d71e1be8 2335
195c5f98 2336 our_int = readl(adapter->crb_int_state_reg);
092bc571 2337
d71e1be8 2338 /* not our interrupt */
092bc571 2339 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2340 return IRQ_NONE;
2341
092bc571 2342 /* claim interrupt */
195c5f98 2343 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2344
195c5f98 2345 /* clear interrupt */
d8b100c5 2346 netxen_nic_disable_int(sds_ring);
195c5f98 2347 }
092bc571 2348
195c5f98 2349 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2350 /* read twice to ensure write is flushed */
195c5f98
AKS		 2351 readl(adapter->isr_int_vec);
2352 readl(adapter->isr_int_vec);
092bc571 2353
d8b100c5 2354 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2355
2356 return IRQ_HANDLED;
2357}
2358
e4c93c81 2359static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2360{
d8b100c5
DP		 2361 struct nx_host_sds_ring *sds_ring = data;
2362 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2363
092bc571 2364 /* clear interrupt */
195c5f98 2365 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2366
d8b100c5 2367 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2368 return IRQ_HANDLED;
2369}
2370
b3df68f8
DP		 2371static irqreturn_t netxen_msix_intr(int irq, void *data)
2372{
d8b100c5 2373 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2374
d8b100c5 2375 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2376 return IRQ_HANDLED;
2377}
2378
bea3348e 2379static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2380{
d8b100c5
DP		 2381 struct nx_host_sds_ring *sds_ring =
2382 container_of(napi, struct nx_host_sds_ring, napi);
2383
2384 struct netxen_adapter *adapter = sds_ring->adapter;
2385
05aaa02d 2386 int tx_complete;
bea3348e 2387 int work_done;
3d396eb1 2388
05aaa02d 2389 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2390
d8b100c5 2391 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2392
05aaa02d 2393 if ((work_done < budget) && tx_complete) {
d8b100c5 2394 napi_complete(&sds_ring->napi);
f2251f66 2395 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2396 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2397 }
2398
bea3348e 2399 return work_done;
3d396eb1
AK		 2400}
2401
2402#ifdef CONFIG_NET_POLL_CONTROLLER
2403static void netxen_nic_poll_controller(struct net_device *netdev)
2404{
7b589a35
YL		 2405 int ring;
2406 struct nx_host_sds_ring *sds_ring;
3176ff3e 2407 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2408 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2409
3d396eb1 2410 disable_irq(adapter->irq);
7b589a35
YL		 2411 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2412 sds_ring = &recv_ctx->sds_rings[ring];
2413 netxen_intr(adapter->irq, sds_ring);
2414 }
3d396eb1
AK		 2415 enable_irq(adapter->irq);
2416}
2417#endif
3d396eb1 2418
6a581e93
DP		 2419static int
2420nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2421{
2422 int count;
2423 if (netxen_api_lock(adapter))
2424 return -EIO;
2425
2426 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2427
2428 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2429
2430 netxen_api_unlock(adapter);
2431 return count;
2432}
2433
2434static int
2435nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2436{
83f18a55 2437 int count, state;
6a581e93
DP		 2438 if (netxen_api_lock(adapter))
2439 return -EIO;
2440
2441 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2442 WARN_ON(count == 0);
2443
2444 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2445 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2446
83f18a55 2447 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2448 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2449
2450 netxen_api_unlock(adapter);
2451 return count;
2452}
2453
e87ad553
AKS		 2454static int
2455nx_dev_request_aer(struct netxen_adapter *adapter)
2456{
2457 u32 state;
2458 int ret = -EINVAL;
2459
2460 if (netxen_api_lock(adapter))
2461 return ret;
2462
2463 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2464
2465 if (state == NX_DEV_NEED_AER)
2466 ret = 0;
2467 else if (state == NX_DEV_READY) {
2468 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2469 ret = 0;
2470 }
2471
2472 netxen_api_unlock(adapter);
2473 return ret;
2474}
2475
83f18a55 2476int
74c520da
AKS		 2477nx_dev_request_reset(struct netxen_adapter *adapter)
2478{
2479 u32 state;
e87ad553 2480 int ret = -EINVAL;
74c520da
AKS		 2481
2482 if (netxen_api_lock(adapter))
e87ad553 2483 return ret;
74c520da
AKS		 2484
2485 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2486
83f18a55 2487 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2488 ret = 0;
2489 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2490 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2491 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2492 ret = 0;
2493 }
74c520da
AKS		 2494
2495 netxen_api_unlock(adapter);
e87ad553
AKS		 2496
2497 return ret;
74c520da
AKS		 2498}
2499
6a581e93
DP		 2500static int
2501netxen_can_start_firmware(struct netxen_adapter *adapter)
2502{
2503 int count;
2504 int can_start = 0;
2505
83f18a55
M		 2506 if (netxen_api_lock(adapter)) {
2507 nx_incr_dev_ref_cnt(adapter);
2508 return -1;
2509 }
6a581e93
DP		 2510
2511 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2512
2513 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2514 count = 0;
2515
2516 if (count == 0) {
2517 can_start = 1;
2518 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2519 }
2520
2521 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2522
2523 netxen_api_unlock(adapter);
2524
2525 return can_start;
2526}
2527
2528static void
2529netxen_schedule_work(struct netxen_adapter *adapter,
2530 work_func_t func, int delay)
2531{
2532 INIT_DELAYED_WORK(&adapter->fw_work, func);
2533 schedule_delayed_work(&adapter->fw_work, delay);
2534}
2535
2536static void
2537netxen_cancel_fw_work(struct netxen_adapter *adapter)
2538{
2539 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2540 msleep(10);
2541
2542 cancel_delayed_work_sync(&adapter->fw_work);
2543}
2544
2545static void
2546netxen_attach_work(struct work_struct *work)
2547{
2548 struct netxen_adapter *adapter = container_of(work,
2549 struct netxen_adapter, fw_work.work);
2550 struct net_device *netdev = adapter->netdev;
2551 int err = 0;
2552
2553 if (netif_running(netdev)) {
2554 err = netxen_nic_attach(adapter);
2555 if (err)
2556 goto done;
2557
2558 err = netxen_nic_up(adapter, netdev);
2559 if (err) {
2560 netxen_nic_detach(adapter);
2561 goto done;
2562 }
2563
57569d0e 2564 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2565 }
2566
2567 netif_device_attach(netdev);
2568
2569done:
2570 adapter->fw_fail_cnt = 0;
2571 clear_bit(__NX_RESETTING, &adapter->state);
2572 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2573}
2574
2575static void
2576netxen_fwinit_work(struct work_struct *work)
2577{
2578 struct netxen_adapter *adapter = container_of(work,
2579 struct netxen_adapter, fw_work.work);
2580 int dev_state;
83f18a55 2581 int count;
6a581e93 2582 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2583 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2584 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2585 WARN_ON(count == 0);
2586 if (count == 1) {
2587 if (adapter->mdump.md_enabled) {
2588 rtnl_lock();
2589 netxen_dump_fw(adapter);
2590 rtnl_unlock();
2591 }
2592 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2593 if (netxen_api_lock(adapter)) {
2594 clear_bit(__NX_RESETTING, &adapter->state);
2595 NXWR32(adapter, NX_CRB_DEV_STATE,
2596 NX_DEV_FAILED);
2597 return;
2598 }
2599 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2600 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2601 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2602 dev_state = NX_DEV_COLD;
2603 netxen_api_unlock(adapter);
2604 }
2605 }
6a581e93
DP		 2606
2607 switch (dev_state) {
2608 case NX_DEV_COLD:
2609 case NX_DEV_READY:
74c520da
AKS		 2610 if (!netxen_start_firmware(adapter)) {
2611 netxen_schedule_work(adapter, netxen_attach_work, 0);
2612 return;
2613 }
2614 break;
6a581e93 2615
6b50ea15 2616 case NX_DEV_NEED_RESET:
6a581e93 2617 case NX_DEV_INITALIZING:
6a581e93
DP		 2618 netxen_schedule_work(adapter,
2619 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2620 return;
6a581e93
DP		 2621
2622 case NX_DEV_FAILED:
2623 default:
8f9b3f69 2624 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2625 break;
2626 }
2627
83f18a55
M		 2628 if (netxen_api_lock(adapter)) {
2629 clear_bit(__NX_RESETTING, &adapter->state);
2630 return;
2631 }
2632 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2633 netxen_api_unlock(adapter);
2634 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2635 adapter->netdev->name);
2636
6a581e93
DP		 2637 clear_bit(__NX_RESETTING, &adapter->state);
2638}
2639
2640static void
2641netxen_detach_work(struct work_struct *work)
2642{
2643 struct netxen_adapter *adapter = container_of(work,
2644 struct netxen_adapter, fw_work.work);
2645 struct net_device *netdev = adapter->netdev;
83f18a55 2646 int ref_cnt = 0, delay;
6a581e93
DP		 2647 u32 status;
2648
2649 netif_device_detach(netdev);
2650
6f771419 2651 netxen_nic_down(adapter, netdev);
6a581e93 2652
e15eec28 2653 rtnl_lock();
6a581e93 2654 netxen_nic_detach(adapter);
e15eec28 2655 rtnl_unlock();
6a581e93
DP		 2656
2657 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2658
6a581e93 2659 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2660 goto err_ret;
6a581e93
DP		 2661
2662 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2663 goto err_ret;
2664
83f18a55
M		 2665 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2666 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2667
6b50ea15
AKS		 2668 if (ref_cnt == -EIO)
2669 goto err_ret;
2670
6a581e93
DP		 2671 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2672
2673 adapter->fw_wait_cnt = 0;
2674 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2675
2676 return;
2677
2678err_ret:
2679 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2680}
2681
2682static int
2683netxen_check_health(struct netxen_adapter *adapter)
2684{
2685 u32 state, heartbit;
5471aed0 2686 u32 peg_status;
6a581e93
DP		 2687 struct net_device *netdev = adapter->netdev;
2688
e87ad553
AKS		 2689 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2690 if (state == NX_DEV_NEED_AER)
2691 return 0;
2692
6a581e93
DP		 2693 if (netxen_nic_check_temp(adapter))
2694 goto detach;
2695
74c520da 2696 if (adapter->need_fw_reset) {
e87ad553
AKS		 2697 if (nx_dev_request_reset(adapter))
2698 return 0;
74c520da
AKS		 2699 goto detach;
2700 }
2701
e87ad553
AKS		 2702 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2703 * 1. Tx timeout 2. Fw hang
2704 * Send request to destroy context in case of tx timeout only
2705 * and doesn't required in case of Fw hang
2706 */
83f18a55 2707 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2708 adapter->need_fw_reset = 1;
e87ad553
AKS		 2709 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2710 goto detach;
6a808c6c 2711 }
6a581e93
DP		 2712
2713 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2714 return 0;
2715
2716 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2717 if (heartbit != adapter->heartbit) {
2718 adapter->heartbit = heartbit;
2719 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2720 if (adapter->need_fw_reset)
2721 goto detach;
6a581e93
DP		 2722 return 0;
2723 }
2724
2725 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2726 return 0;
2727
e87ad553
AKS		 2728 if (nx_dev_request_reset(adapter))
2729 return 0;
2730
6a581e93
DP		 2731 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2732
5471aed0
SV		 2733 dev_err(&netdev->dev, "firmware hang detected\n");
2734 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2735 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2736 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2737 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2738 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2739 "PEG_NET_4_PC: 0x%x\n",
2740 peg_status,
2741 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2742 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2747 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2748 dev_err(&adapter->pdev->dev,
2749 "Firmware aborted with error code 0x00006700. "
2750 "Device is being reset.\n");
6a581e93 2751detach:
caa2dd53
NK		 2752 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2753 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2754 netxen_schedule_work(adapter, netxen_detach_work, 0);
2755 return 1;
2756}
2757
2758static void
2759netxen_fw_poll_work(struct work_struct *work)
2760{
2761 struct netxen_adapter *adapter = container_of(work,
2762 struct netxen_adapter, fw_work.work);
2763
2764 if (test_bit(__NX_RESETTING, &adapter->state))
2765 goto reschedule;
2766
2767 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2768 if (!adapter->has_link_events) {
2769
2770 netxen_nic_handle_phy_intr(adapter);
2771
2772 if (adapter->link_changed)
2773 netxen_nic_set_link_parameters(adapter);
2774 }
2775 }
2776
2777 if (netxen_check_health(adapter))
2778 return;
2779
2780reschedule:
2781 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2782}
2783
fa3ce355
NK		 2784static ssize_t
2785netxen_store_bridged_mode(struct device *dev,
2786 struct device_attribute *attr, const char *buf, size_t len)
2787{
2788 struct net_device *net = to_net_dev(dev);
2789 struct netxen_adapter *adapter = netdev_priv(net);
2790 unsigned long new;
2791 int ret = -EINVAL;
2792
2793 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2794 goto err_out;
2795
2796 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2797 goto err_out;
2798
67d6bfa6 2799 if (kstrtoul(buf, 2, &new))
fa3ce355
NK		 2800 goto err_out;
2801
2802 if (!netxen_config_bridged_mode(adapter, !!new))
2803 ret = len;
2804
2805err_out:
2806 return ret;
2807}
2808
2809static ssize_t
2810netxen_show_bridged_mode(struct device *dev,
2811 struct device_attribute *attr, char *buf)
2812{
2813 struct net_device *net = to_net_dev(dev);
2814 struct netxen_adapter *adapter;
2815 int bridged_mode = 0;
2816
2817 adapter = netdev_priv(net);
2818
2819 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2820 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2821
2822 return sprintf(buf, "%d\n", bridged_mode);
2823}
2824
2825static struct device_attribute dev_attr_bridged_mode = {
2826 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2827 .show = netxen_show_bridged_mode,
2828 .store = netxen_store_bridged_mode,
2829};
2830
70f9cf89
DP		 2831static ssize_t
2832netxen_store_diag_mode(struct device *dev,
2833 struct device_attribute *attr, const char *buf, size_t len)
2834{
2835 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2836 unsigned long new;
2837
67d6bfa6 2838 if (kstrtoul(buf, 2, &new))
70f9cf89
DP		 2839 return -EINVAL;
2840
2841 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2842 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2843
2844 return len;
2845}
2846
2847static ssize_t
2848netxen_show_diag_mode(struct device *dev,
2849 struct device_attribute *attr, char *buf)
2850{
2851 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2852
2853 return sprintf(buf, "%d\n",
2854 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2855}
2856
2857static struct device_attribute dev_attr_diag_mode = {
2858 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2859 .show = netxen_show_diag_mode,
2860 .store = netxen_store_diag_mode,
2861};
2862
2863static int
2864netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2865 loff_t offset, size_t size)
2866{
0b9715e6
AKS		 2867 size_t crb_size = 4;
2868
70f9cf89
DP		 2869 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2870 return -EIO;
2871
0b9715e6
AKS		 2872 if (offset < NETXEN_PCI_CRBSPACE) {
2873 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2874 return -EINVAL;
70f9cf89 2875
0b9715e6
AKS		 2876 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2877 NETXEN_PCI_CAMQM_2M_END))
2878 crb_size = 8;
2879 else
2880 return -EINVAL;
2881 }
2882
2883 if ((size != crb_size) || (offset & (crb_size-1)))
2884 return -EINVAL;
70f9cf89
DP		 2885
2886 return 0;
2887}
2888
2889static ssize_t
2c3c8bea
CW		 2890netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2891 struct bin_attribute *attr,
70f9cf89
DP		 2892 char *buf, loff_t offset, size_t size)
2893{
2894 struct device *dev = container_of(kobj, struct device, kobj);
2895 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2896 u32 data;
0b9715e6 2897 u64 qmdata;
70f9cf89
DP		 2898 int ret;
2899
2900 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2901 if (ret != 0)
2902 return ret;
2903
0b9715e6
AKS		 2904 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2905 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2906 NETXEN_PCI_CAMQM_2M_END)) {
2907 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2908 memcpy(buf, &qmdata, size);
2909 } else {
2910 data = NXRD32(adapter, offset);
2911 memcpy(buf, &data, size);
2912 }
2913
70f9cf89
DP		 2914 return size;
2915}
2916
2917static ssize_t
2c3c8bea
CW		 2918netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2919 struct bin_attribute *attr,
70f9cf89
DP		 2920 char *buf, loff_t offset, size_t size)
2921{
2922 struct device *dev = container_of(kobj, struct device, kobj);
2923 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2924 u32 data;
0b9715e6 2925 u64 qmdata;
70f9cf89
DP		 2926 int ret;
2927
2928 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2929 if (ret != 0)
2930 return ret;
2931
0b9715e6
AKS		 2932 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2933 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2934 NETXEN_PCI_CAMQM_2M_END)) {
2935 memcpy(&qmdata, buf, size);
2936 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2937 } else {
2938 memcpy(&data, buf, size);
2939 NXWR32(adapter, offset, data);
2940 }
2941
70f9cf89
DP		 2942 return size;
2943}
2944
2945static int
2946netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2947 loff_t offset, size_t size)
2948{
2949 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2950 return -EIO;
2951
2952 if ((size != 8) || (offset & 0x7))
2953 return -EIO;
2954
2955 return 0;
2956}
2957
2958static ssize_t
2c3c8bea
CW		 2959netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2960 struct bin_attribute *attr,
70f9cf89
DP		 2961 char *buf, loff_t offset, size_t size)
2962{
2963 struct device *dev = container_of(kobj, struct device, kobj);
2964 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2965 u64 data;
2966 int ret;
2967
2968 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2969 if (ret != 0)
2970 return ret;
2971
2972 if (adapter->pci_mem_read(adapter, offset, &data))
2973 return -EIO;
2974
2975 memcpy(buf, &data, size);
2976
2977 return size;
2978}
2979
2c3c8bea 2980static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2981 struct bin_attribute *attr, char *buf,
2982 loff_t offset, size_t size)
2983{
2984 struct device *dev = container_of(kobj, struct device, kobj);
2985 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2986 u64 data;
2987 int ret;
2988
2989 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2990 if (ret != 0)
2991 return ret;
2992
2993 memcpy(&data, buf, size);
2994
2995 if (adapter->pci_mem_write(adapter, offset, data))
2996 return -EIO;
2997
2998 return size;
2999}
3000
3001
3002static struct bin_attribute bin_attr_crb = {
3003 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3004 .size = 0,
3005 .read = netxen_sysfs_read_crb,
3006 .write = netxen_sysfs_write_crb,
3007};
3008
3009static struct bin_attribute bin_attr_mem = {
3010 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3011 .size = 0,
3012 .read = netxen_sysfs_read_mem,
3013 .write = netxen_sysfs_write_mem,
3014};
3015
d612698b
SC		 3016static ssize_t
3017netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3018 struct bin_attribute *attr,
3019 char *buf, loff_t offset, size_t size)
3020{
3021 struct device *dev = container_of(kobj, struct device, kobj);
3022 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3023 struct net_device *netdev = adapter->netdev;
3024 struct netxen_dimm_cfg dimm;
3025 u8 dw, rows, cols, banks, ranks;
3026 u32 val;
3027
3028 if (size != sizeof(struct netxen_dimm_cfg)) {
3029 netdev_err(netdev, "Invalid size\n");
3030 return -1;
3031 }
3032
3033 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3034 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3035
3036 /* Checks if DIMM info is valid. */
3037 if (val & NETXEN_DIMM_VALID_FLAG) {
3038 netdev_err(netdev, "Invalid DIMM flag\n");
3039 dimm.presence = 0xff;
3040 goto out;
3041 }
3042
3043 rows = NETXEN_DIMM_NUMROWS(val);
3044 cols = NETXEN_DIMM_NUMCOLS(val);
3045 ranks = NETXEN_DIMM_NUMRANKS(val);
3046 banks = NETXEN_DIMM_NUMBANKS(val);
3047 dw = NETXEN_DIMM_DATAWIDTH(val);
3048
3049 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3050
3051 /* Checks if DIMM info is present. */
3052 if (!dimm.presence) {
3053 netdev_err(netdev, "DIMM not present\n");
3054 goto out;
3055 }
3056
3057 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3058
3059 switch (dimm.dimm_type) {
3060 case NETXEN_DIMM_TYPE_RDIMM:
3061 case NETXEN_DIMM_TYPE_UDIMM:
3062 case NETXEN_DIMM_TYPE_SO_DIMM:
3063 case NETXEN_DIMM_TYPE_Micro_DIMM:
3064 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3065 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3066 break;
3067 default:
3068 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3069 goto out;
3070 }
3071
3072 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3073 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3074 else
3075 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3076
3077 if (val & NETXEN_DIMM_SIZE) {
3078 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3079 goto out;
3080 }
3081
3082 if (!rows) {
3083 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3084 goto out;
3085 }
3086
3087 if (!cols) {
3088 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3089 goto out;
3090 }
3091
3092 if (!banks) {
3093 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3094 goto out;
3095 }
3096
3097 ranks += 1;
3098
3099 switch (dw) {
3100 case 0x0:
3101 dw = 32;
3102 break;
3103 case 0x1:
3104 dw = 33;
3105 break;
3106 case 0x2:
3107 dw = 36;
3108 break;
3109 case 0x3:
3110 dw = 64;
3111 break;
3112 case 0x4:
3113 dw = 72;
3114 break;
3115 case 0x5:
3116 dw = 80;
3117 break;
3118 case 0x6:
3119 dw = 128;
3120 break;
3121 case 0x7:
3122 dw = 144;
3123 break;
3124 default:
3125 netdev_err(netdev, "Invalid data-width %x\n", dw);
3126 goto out;
3127 }
3128
3129 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3130 /* Size returned in MB. */
3131 dimm.size = (dimm.size) / 0x100000;
3132out:
3133 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3134 return sizeof(struct netxen_dimm_cfg);
3135
3136}
3137
3138static struct bin_attribute bin_attr_dimm = {
3139 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3140 .size = 0,
3141 .read = netxen_sysfs_read_dimm,
3142};
3143
caa2dd53 3144
fa3ce355
NK		 3145static void
3146netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3147{
b8c30812 3148 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3149
3150 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3151 /* bridged_mode control */
3152 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 3153 dev_warn(dev,
fa3ce355
NK		 3154 "failed to create bridged_mode sysfs entry\n");
3155 }
3156 }
3157}
3158
3159static void
3160netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3161{
b8c30812 3162 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3163
3164 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3165 device_remove_file(dev, &dev_attr_bridged_mode);
3166}
3167
70f9cf89
DP		 3168static void
3169netxen_create_diag_entries(struct netxen_adapter *adapter)
3170{
3171 struct pci_dev *pdev = adapter->pdev;
3172 struct device *dev;
3173
3174 dev = &pdev->dev;
3175 if (device_create_file(dev, &dev_attr_diag_mode))
3176 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3177 if (device_create_bin_file(dev, &bin_attr_crb))
3178 dev_info(dev, "failed to create crb sysfs entry\n");
3179 if (device_create_bin_file(dev, &bin_attr_mem))
3180 dev_info(dev, "failed to create mem sysfs entry\n");
d612698b
SC		 3181 if (device_create_bin_file(dev, &bin_attr_dimm))
3182 dev_info(dev, "failed to create dimm sysfs entry\n");
70f9cf89
DP		 3183}
3184
3185
3186static void
3187netxen_remove_diag_entries(struct netxen_adapter *adapter)
3188{
3189 struct pci_dev *pdev = adapter->pdev;
3190 struct device *dev = &pdev->dev;
3191
3192 device_remove_file(dev, &dev_attr_diag_mode);
3193 device_remove_bin_file(dev, &bin_attr_crb);
3194 device_remove_bin_file(dev, &bin_attr_mem);
d612698b 3195 device_remove_bin_file(dev, &bin_attr_dimm);
70f9cf89
DP		 3196}
3197
044824d9
DP		 3198#ifdef CONFIG_INET
3199
6598b169
DP		 3200#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3201
3202static int
3203netxen_destip_supported(struct netxen_adapter *adapter)
3204{
3205 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3206 return 0;
3207
3208 if (adapter->ahw.cut_through)
3209 return 0;
3210
3211 return 1;
3212}
3213
d0725e4d 3214static void
8a7fbfab 3215netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
57569d0e 3216{
8a7fbfab 3217 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3218
8a7fbfab 3219 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3220 if (master) {
3221 if (cur->master) {
3222 netxen_config_ipaddr(adapter, cur->ip_addr,
3223 NX_IP_DOWN);
3224 list_del(&cur->list);
3225 kfree(cur);
3226 }
3227 } else {
3228 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3229 list_del(&cur->list);
3230 kfree(cur);
3231 }
57569d0e 3232 }
57569d0e 3233}
8a7fbfab 3234
3235static bool
3236netxen_list_config_ip(struct netxen_adapter *adapter,
57569d0e
RB		 3237 struct in_ifaddr *ifa, unsigned long event)
3238{
3239 struct net_device *dev;
8a7fbfab 3240 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3241 struct list_head *head;
8a7fbfab 3242 bool ret = false;
57569d0e
RB		 3243
3244 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3245
3246 if (dev == NULL)
8a7fbfab 3247 goto out;
57569d0e
RB		 3248
3249 switch (event) {
3250 case NX_IP_UP:
8a7fbfab 3251 list_for_each(head, &adapter->ip_list) {
3252 cur = list_entry(head, struct nx_ip_list, list);
57569d0e
RB		 3253
3254 if (cur->ip_addr == ifa->ifa_address)
8a7fbfab 3255 goto out;
57569d0e
RB		 3256 }
3257
8a7fbfab 3258 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
b2adaca9 3259 if (cur == NULL)
8a7fbfab 3260 goto out;
3261 if (dev->priv_flags & IFF_802_1Q_VLAN)
3262 dev = vlan_dev_real_dev(dev);
3263 cur->master = !!netif_is_bond_master(dev);
57569d0e 3264 cur->ip_addr = ifa->ifa_address;
8a7fbfab 3265 list_add_tail(&cur->list, &adapter->ip_list);
3266 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3267 ret = true;
57569d0e
RB		 3268 break;
3269 case NX_IP_DOWN:
3270 list_for_each_entry_safe(cur, tmp_cur,
8a7fbfab 3271 &adapter->ip_list, list) {
57569d0e
RB		 3272 if (cur->ip_addr == ifa->ifa_address) {
3273 list_del(&cur->list);
3274 kfree(cur);
8a7fbfab 3275 netxen_config_ipaddr(adapter, ifa->ifa_address,
3276 NX_IP_DOWN);
3277 ret = true;
57569d0e
RB		 3278 break;
3279 }
3280 }
3281 }
8a7fbfab 3282out:
3283 return ret;
57569d0e 3284}
8a7fbfab 3285
57569d0e
RB		 3286static void
3287netxen_config_indev_addr(struct netxen_adapter *adapter,
3288 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3289{
3290 struct in_device *indev;
d0725e4d 3291
3db76755 3292 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3293 return;
3294
3295 indev = in_dev_get(dev);
3296 if (!indev)
3297 return;
3298
3299 for_ifa(indev) {
3300 switch (event) {
3301 case NETDEV_UP:
8a7fbfab 3302 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3303 break;
3304 case NETDEV_DOWN:
8a7fbfab 3305 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3306 break;
3307 default:
3308 break;
3309 }
3310 } endfor_ifa(indev);
3311
3312 in_dev_put(indev);
d0725e4d
AKS		 3313}
3314
57569d0e
RB		 3315static void
3316netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3317
3318{
3319 struct netxen_adapter *adapter = netdev_priv(netdev);
8a7fbfab 3320 struct nx_ip_list *pos, *tmp_pos;
57569d0e
RB		 3321 unsigned long ip_event;
3322
3323 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3324 netxen_config_indev_addr(adapter, netdev, event);
3325
8a7fbfab 3326 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
57569d0e
RB		 3327 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3328 }
3329}
3330
8a7fbfab 3331static inline bool
3332netxen_config_checkdev(struct net_device *dev)
3333{
3334 struct netxen_adapter *adapter;
3335
3336 if (!is_netxen_netdev(dev))
3337 return false;
3338 adapter = netdev_priv(dev);
3339 if (!adapter)
3340 return false;
3341 if (!netxen_destip_supported(adapter))
3342 return false;
3343 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3344 return false;
3345
3346 return true;
3347}
3348
3349/**
3350 * netxen_config_master - configure addresses based on master
3351 * @dev: netxen device
3352 * @event: netdev event
3353 */
3354static void netxen_config_master(struct net_device *dev, unsigned long event)
3355{
3356 struct net_device *master, *slave;
3357 struct netxen_adapter *adapter = netdev_priv(dev);
3358
3359 rcu_read_lock();
3360 master = netdev_master_upper_dev_get_rcu(dev);
3361 /*
3362 * This is the case where the netxen nic is being
3363 * enslaved and is dev_open()ed in bond_enslave()
3364 * Now we should program the bond's (and its vlans')
3365 * addresses in the netxen NIC.
3366 */
3367 if (master && netif_is_bond_master(master) &&
3368 !netif_is_bond_slave(dev)) {
3369 netxen_config_indev_addr(adapter, master, event);
3370 for_each_netdev_rcu(&init_net, slave)
3371 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3372 vlan_dev_real_dev(slave) == master)
3373 netxen_config_indev_addr(adapter, slave, event);
3374 }
3375 rcu_read_unlock();
3376 /*
3377 * This is the case where the netxen nic is being
3378 * released and is dev_close()ed in bond_release()
3379 * just before IFF_BONDING is stripped.
3380 */
3381 if (!master && dev->priv_flags & IFF_BONDING)
3382 netxen_free_ip_list(adapter, true);
3383}
3384
6598b169
DP		 3385static int netxen_netdev_event(struct notifier_block *this,
3386 unsigned long event, void *ptr)
3387{
3388 struct netxen_adapter *adapter;
351638e7 3389 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
57569d0e 3390 struct net_device *orig_dev = dev;
8a7fbfab 3391 struct net_device *slave;
6598b169
DP		 3392
3393recheck:
3394 if (dev == NULL)
3395 goto done;
3396
3397 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3398 dev = vlan_dev_real_dev(dev);
3399 goto recheck;
3400 }
8a7fbfab 3401 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3402 /* If this is a bonding device, look for netxen-based slaves*/
3403 if (netif_is_bond_master(dev)) {
3404 rcu_read_lock();
3405 for_each_netdev_in_bond_rcu(dev, slave) {
3406 if (!netxen_config_checkdev(slave))
3407 continue;
3408 adapter = netdev_priv(slave);
3409 netxen_config_indev_addr(adapter,
3410 orig_dev, event);
3411 }
3412 rcu_read_unlock();
3413 } else {
3414 if (!netxen_config_checkdev(dev))
3415 goto done;
3416 adapter = netdev_priv(dev);
3417 /* Act only if the actual netxen is the target */
3418 if (orig_dev == dev)
3419 netxen_config_master(dev, event);
3420 netxen_config_indev_addr(adapter, orig_dev, event);
3421 }
3422 }
6598b169
DP		 3423done:
3424 return NOTIFY_DONE;
3425}
3426
3427static int
3428netxen_inetaddr_event(struct notifier_block *this,
3429 unsigned long event, void *ptr)
3430{
3431 struct netxen_adapter *adapter;
8a7fbfab 3432 struct net_device *dev, *slave;
6598b169 3433 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8a7fbfab 3434 unsigned long ip_event;
6598b169
DP		 3435
3436 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
8a7fbfab 3437 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
6598b169 3438recheck:
57569d0e 3439 if (dev == NULL)
6598b169
DP		 3440 goto done;
3441
3442 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3443 dev = vlan_dev_real_dev(dev);
3444 goto recheck;
3445 }
8a7fbfab 3446 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3447 /* If this is a bonding device, look for netxen-based slaves*/
3448 if (netif_is_bond_master(dev)) {
3449 rcu_read_lock();
3450 for_each_netdev_in_bond_rcu(dev, slave) {
3451 if (!netxen_config_checkdev(slave))
3452 continue;
3453 adapter = netdev_priv(slave);
3454 netxen_list_config_ip(adapter, ifa, ip_event);
3455 }
3456 rcu_read_unlock();
3457 } else {
3458 if (!netxen_config_checkdev(dev))
3459 goto done;
3460 adapter = netdev_priv(dev);
3461 netxen_list_config_ip(adapter, ifa, ip_event);
3462 }
6598b169 3463 }
6598b169
DP		 3464done:
3465 return NOTIFY_DONE;
3466}
3467
3468static struct notifier_block netxen_netdev_cb = {
3469 .notifier_call = netxen_netdev_event,
3470};
3471
3472static struct notifier_block netxen_inetaddr_cb = {
3473 .notifier_call = netxen_inetaddr_event,
3474};
9feae56c
RD		 3475#else
3476static void
57569d0e
RB		 3477netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3478{ }
3479static void
8a7fbfab 3480netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
9feae56c 3481{ }
044824d9 3482#endif
6598b169 3483
3646f0e5 3484static const struct pci_error_handlers netxen_err_handler = {
e87ad553
AKS		 3485 .error_detected = netxen_io_error_detected,
3486 .slot_reset = netxen_io_slot_reset,
3487 .resume = netxen_io_resume,
3488};
3489
3d396eb1
AK		 3490static struct pci_driver netxen_driver = {
3491 .name = netxen_nic_driver_name,
3492 .id_table = netxen_pci_tbl,
3493 .probe = netxen_nic_probe,
c3f9c88c 3494 .remove = netxen_nic_remove,
01542cd1 3495#ifdef CONFIG_PM
0b72e659 3496 .suspend = netxen_nic_suspend,
22b5794b 3497 .resume = netxen_nic_resume,
01542cd1 3498#endif
e87ad553
AKS		 3499 .shutdown = netxen_nic_shutdown,
3500 .err_handler = &netxen_err_handler
3d396eb1
AK		 3501};
3502
3d396eb1
AK		 3503static int __init netxen_init_module(void)
3504{
ff4fbd43
DP		 3505 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3506
044824d9 3507#ifdef CONFIG_INET
6598b169
DP		 3508 register_netdevice_notifier(&netxen_netdev_cb);
3509 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3510#endif
184231bd 3511 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3512}
3513
3514module_init(netxen_init_module);
3515
3516static void __exit netxen_exit_module(void)
3517{
3d396eb1 3518 pci_unregister_driver(&netxen_driver);
6598b169 3519
044824d9 3520#ifdef CONFIG_INET
6598b169
DP		 3521 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3522 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3523#endif
3d396eb1
AK		 3524}
3525
3526module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)