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Merge branch 'bonding_neighbours'
[mirror_ubuntu-focal-kernel.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
CommitLineData
3d396eb1 1/*
5d242f1c 2 * Copyright (C) 2003 - 2009 NetXen, Inc.
13af7a6e 3 * Copyright (C) 2009 - QLogic Corporation.
3d396eb1 4 * All rights reserved.
80922fbc 5 *
3d396eb1
AK		 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
80922fbc 10 *
3d396eb1
AK		 11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
80922fbc 15 *
3d396eb1
AK		 16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
80922fbc 20 *
3d396eb1 21 * The full GNU General Public License is included in this distribution
4d21fef4 22 * in the file called "COPYING".
80922fbc 23 *
3d396eb1
AK		 24 */
25
5a0e3ad6 26#include <linux/slab.h>
cb8011ad 27#include <linux/vmalloc.h>
e98e3350 28#include <linux/interrupt.h>
3d396eb1
AK		 29#include "netxen_nic_hw.h"
30
31#include "netxen_nic.h"
3d396eb1 32
1494a814 33#include <linux/dma-mapping.h>
391587c3 34#include <linux/if_vlan.h>
c9bdd4b5 35#include <net/ip.h>
00977784 36#include <linux/ipv6.h>
6598b169 37#include <linux/inetdevice.h>
0531d7b8 38#include <linux/sysfs.h>
e87ad553 39#include <linux/aer.h>
1494a814 40
0438a1b2 41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 45
ceded32f 46char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 48 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 49
2956640d
DP		 50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52/* Default to restricted 1G auto-neg mode */
53static int wol_port_mode = 5;
54
55static int use_msi = 1;
56
57static int use_msi_x = 1;
58
afdafff1
SH		 59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 62
c3f9c88c 63static int netxen_nic_probe(struct pci_dev *pdev,
2956640d 64 const struct pci_device_id *ent);
c3f9c88c 65static void netxen_nic_remove(struct pci_dev *pdev);
3d396eb1
AK		 66static int netxen_nic_open(struct net_device *netdev);
67static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
3d396eb1 70static void netxen_tx_timeout(struct net_device *netdev);
74c520da 71static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 72static void netxen_fw_poll_work(struct work_struct *work);
73static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 76static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void netxen_nic_poll_controller(struct net_device *netdev);
79#endif
fa3ce355
NK		 80
81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 83static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
e87ad553 85static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 86static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
87static int netxen_can_start_firmware(struct netxen_adapter *adapter);
88
1494a814 89static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 90static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 91static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 92
8a7fbfab 93static void netxen_free_ip_list(struct netxen_adapter *, bool);
57569d0e 94static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
47fd428c 95static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
96 struct rtnl_link_stats64 *stats);
7e12bb0a 97static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 98
3d396eb1 99/* PCI Device ID Table */
70081ac5 100#define ENTRY(device) \
040dec3b 101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
a3aa1884 104static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
040dec3b
DP		 105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 113 {0,}
114};
115
116MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117
7830b22c
DP		 118static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121};
122
c9fc891f 123void
3ce06a32 124netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 125 struct nx_host_tx_ring *tx_ring)
3176ff3e 126{
195c5f98 127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 128}
129
7830b22c
DP		 130static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133};
134
3ce06a32
DP		 135static inline void
136netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 137 struct nx_host_tx_ring *tx_ring)
3176ff3e 138{
195c5f98 139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 140}
141
2956640d 142static uint32_t msi_tgt_status[8] = {
443be796 143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 147};
148
2956640d
DP		 149static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150
d8b100c5 151static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 152{
d8b100c5
DP		 153 struct netxen_adapter *adapter = sds_ring->adapter;
154
195c5f98 155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 156}
157
d8b100c5 158static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 159{
d8b100c5
DP		 160 struct netxen_adapter *adapter = sds_ring->adapter;
161
195c5f98 162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 163
092bc571 164 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 166}
167
71dcddbd
DP		 168static int
169netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170{
171 int size = sizeof(struct nx_host_sds_ring) * count;
172
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174
807540ba 175 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 176}
177
d8b100c5 178static void
71dcddbd
DP		 179netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180{
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
232e7d68
DP		 183
184 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 185}
186
187static int
d8b100c5
DP		 188netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
189{
190 int ring;
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193
71dcddbd 194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 195 return -ENOMEM;
71dcddbd 196
d8b100c5
DP		 197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
1e4a5282 200 netxen_nic_poll, NAPI_POLL_WEIGHT);
d8b100c5 201 }
71dcddbd
DP		 202
203 return 0;
d8b100c5
DP		 204}
205
232e7d68
DP		 206static void
207netxen_napi_del(struct netxen_adapter *adapter)
208{
209 int ring;
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
216 }
217
218 netxen_free_sds_rings(&adapter->recv_ctx);
219}
220
d8b100c5
DP		 221static void
222netxen_napi_enable(struct netxen_adapter *adapter)
223{
224 int ring;
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
232 }
233}
234
235static void
236netxen_napi_disable(struct netxen_adapter *adapter)
237{
238 int ring;
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 244 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
d8b100c5
DP		 247 }
248}
249
50c643e7 250static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 251{
252 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 253 uint64_t mask, cmask;
254
255 adapter->pci_using_dac = 0;
2956640d 256
6afd142f 257 mask = DMA_BIT_MASK(32);
6afd142f 258 cmask = DMA_BIT_MASK(32);
1f434f63 259
50c643e7 260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 261#ifndef CONFIG_IA64
6afd142f 262 mask = DMA_BIT_MASK(35);
1f434f63 263#endif
50c643e7
DP		 264 } else {
265 mask = DMA_BIT_MASK(39);
266 cmask = mask;
267 }
268
2956640d 269 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 271 adapter->pci_using_dac = 1;
272 return 0;
273 }
2956640d 274
1f434f63
DP		 275 return -EIO;
276}
277
278/* Update addressable range if firmware supports it */
279static int
280nx_update_dma_mask(struct netxen_adapter *adapter)
281{
282 int change, shift, err;
50c643e7 283 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 284 struct pci_dev *pdev = adapter->pdev;
285
286 change = 0;
287
f98a9f69 288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 289 if (shift > 32)
1f434f63
DP		 290 return 0;
291
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 change = 1;
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
295 change = 1;
296
297 if (change) {
298 old_mask = pdev->dma_mask;
50c643e7
DP		 299 old_cmask = pdev->dev.coherent_dma_mask;
300
f60f7856 301 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 302
303 err = pci_set_dma_mask(pdev, mask);
304 if (err)
50c643e7
DP		 305 goto err_out;
306
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308
309 err = pci_set_consistent_dma_mask(pdev, mask);
310 if (err)
311 goto err_out;
312 }
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 314 }
315
2956640d 316 return 0;
50c643e7
DP		 317
318err_out:
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
321 return err;
2956640d
DP		 322}
323
2956640d
DP		 324static int
325netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
326{
27c915a4 327 u32 val, timeout;
2956640d
DP		 328
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
f98a9f69 331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 332
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
334 return 0;
2956640d
DP		 335
336 /* PCI bus master workaround */
f98a9f69 337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 338 if (!(first_boot & 0x4)) {
339 first_boot |= 0x4;
f98a9f69 340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 341 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 342 }
343
344 /* This is the first boot after power up */
f98a9f69 345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
f98a9f69 348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 349 return -EIO;
2956640d
DP		 350 }
351
27c915a4 352 /* Start P2 boot loader */
f98a9f69
DP		 353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 355 timeout = 0;
356 do {
357 msleep(1);
f98a9f69 358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 359
360 if (++timeout > 5000)
361 return -EIO;
362
363 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 364 }
27c915a4 365 return 0;
2956640d
DP		 366}
367
368static void netxen_set_port_mode(struct netxen_adapter *adapter)
369{
370 u32 val, data;
371
1e2d0059 372 val = adapter->ahw.board_type;
2956640d
DP		 373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
f98a9f69 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 387 } else {
388 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 390 }
391
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 }
f98a9f69 398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 399 }
400}
401
e3feb266
RB		 402#define PCI_CAP_ID_GEN 0x10
403
404static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
405{
406 u32 pdevfuncsave;
407 u32 c8c9value = 0;
408 u32 chicken = 0;
409 u32 control = 0;
410 int i, pos;
411 struct pci_dev *pdev;
412
413 pdev = adapter->pdev;
414
415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
416 /* clear chicken3.25:24 */
417 chicken &= 0xFCFFFFFF;
418 /*
419 * if gen1 and B0, set F1020 - if gen 2, do nothing
420 * if gen2 set to F1000
421 */
422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
423 if (pos == 0xC0) {
424 pci_read_config_dword(pdev, pos + 0x10, &control);
425 if ((control & 0x000F0000) != 0x00020000) {
426 /* set chicken3.24 if gen1 */
427 chicken |= 0x01000000;
428 }
429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
430 c8c9value = 0xF1000;
431 } else {
432 /* set chicken3.24 if gen1 */
433 chicken |= 0x01000000;
434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
435 if (adapter->ahw.revision_id == NX_P3_B0)
436 c8c9value = 0xF1020;
437 else
438 c8c9value = 0;
439 }
440
441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
442
443 if (!c8c9value)
444 return;
445
446 pdevfuncsave = pdev->devfn;
447 if (pdevfuncsave & 0x07)
448 return;
449
450 for (i = 0; i < 8; i++) {
451 pci_read_config_dword(pdev, pos + 8, &control);
452 pci_read_config_dword(pdev, pos + 8, &control);
453 pci_write_config_dword(pdev, pos + 8, c8c9value);
454 pdev->devfn++;
455 }
456 pdev->devfn = pdevfuncsave;
457}
458
2956640d
DP		 459static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
460{
461 u32 control;
2956640d 462
b83082e9
YW		 463 if (pdev->msix_cap) {
464 pci_read_config_dword(pdev, pdev->msix_cap, &control);
2956640d
DP		 465 if (enable)
466 control |= PCI_MSIX_FLAGS_ENABLE;
467 else
468 control = 0;
b83082e9 469 pci_write_config_dword(pdev, pdev->msix_cap, control);
2956640d
DP		 470 }
471}
472
be339aee 473static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 474{
475 int i;
476
be339aee 477 for (i = 0; i < count; i++)
2956640d
DP		 478 adapter->msix_entries[i].entry = i;
479}
480
9dc28efe
DP		 481static int
482netxen_read_mac_addr(struct netxen_adapter *adapter)
483{
484 int i;
485 unsigned char *p;
a03d2451 486 u64 mac_addr;
9dc28efe
DP		 487 struct net_device *netdev = adapter->netdev;
488 struct pci_dev *pdev = adapter->pdev;
489
9dc28efe
DP		 490 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
491 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
492 return -EIO;
493 } else {
494 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
495 return -EIO;
496 }
497
498 p = (unsigned char *)&mac_addr;
499 for (i = 0; i < 6; i++)
500 netdev->dev_addr[i] = *(p + 5 - i);
501
5d09e534 502 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 503
504 /* set station address */
505
aaeb6cdf 506 if (!is_valid_ether_addr(netdev->dev_addr))
e174961c 507 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 508
509 return 0;
510}
511
7e12bb0a 512static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 513{
514 struct netxen_adapter *adapter = netdev_priv(netdev);
515 struct sockaddr *addr = p;
516
517 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 518 return -EADDRNOTAVAIL;
3d0a3cc9
DP		 519
520 if (netif_running(netdev)) {
521 netif_device_detach(netdev);
522 netxen_napi_disable(adapter);
523 }
524
5d09e534 525 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 526 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
527 adapter->macaddr_set(adapter, addr->sa_data);
528
529 if (netif_running(netdev)) {
530 netif_device_attach(netdev);
531 netxen_napi_enable(adapter);
532 }
533 return 0;
534}
535
1abd266f
SH		 536static void netxen_set_multicast_list(struct net_device *dev)
537{
538 struct netxen_adapter *adapter = netdev_priv(dev);
539
3d0a3cc9 540 adapter->set_multi(dev);
1abd266f
SH		 541}
542
c8f44aff
MM		 543static netdev_features_t netxen_fix_features(struct net_device *dev,
544 netdev_features_t features)
066413da
MM		 545{
546 if (!(features & NETIF_F_RXCSUM)) {
547 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
548
549 features &= ~NETIF_F_LRO;
550 }
551
552 return features;
553}
554
c8f44aff
MM		 555static int netxen_set_features(struct net_device *dev,
556 netdev_features_t features)
066413da
MM		 557{
558 struct netxen_adapter *adapter = netdev_priv(dev);
559 int hw_lro;
560
561 if (!((dev->features ^ features) & NETIF_F_LRO))
562 return 0;
563
564 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
565 : NETXEN_NIC_LRO_DISABLED;
566
567 if (netxen_config_hw_lro(adapter, hw_lro))
568 return -EIO;
569
570 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
571 return -EIO;
572
573 return 0;
574}
575
1abd266f
SH		 576static const struct net_device_ops netxen_netdev_ops = {
577 .ndo_open = netxen_nic_open,
578 .ndo_stop = netxen_nic_close,
579 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 580 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f 581 .ndo_validate_addr = eth_validate_addr,
afc4b13d 582 .ndo_set_rx_mode = netxen_set_multicast_list,
1abd266f
SH		 583 .ndo_set_mac_address = netxen_nic_set_mac,
584 .ndo_change_mtu = netxen_nic_change_mtu,
585 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 586 .ndo_fix_features = netxen_fix_features,
587 .ndo_set_features = netxen_set_features,
1abd266f
SH		 588#ifdef CONFIG_NET_POLL_CONTROLLER
589 .ndo_poll_controller = netxen_nic_poll_controller,
590#endif
591};
592
b37eb210
MC		 593static inline bool netxen_function_zero(struct pci_dev *pdev)
594{
595 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
596}
597
598static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
599 u32 mode)
600{
601 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
602}
603
604static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
605{
606 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
607}
608
97daee83 609static void
a120e864 610netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
97daee83
DP		 611{
612 struct netxen_legacy_intr_set *legacy_intrp;
a120e864 613 u32 tgt_status_reg, int_state_reg;
97daee83
DP		 614
615 if (adapter->ahw.revision_id >= NX_P3_B0)
616 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
617 else
618 legacy_intrp = &legacy_intr[0];
195c5f98 619
a120e864
MC		 620 tgt_status_reg = legacy_intrp->tgt_status_reg;
621 int_state_reg = ISR_INT_STATE_REG;
622
195c5f98 623 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
a120e864 624 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
195c5f98 625 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
a120e864 626 legacy_intrp->tgt_mask_reg);
195c5f98 627 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
a120e864 628 legacy_intrp->pci_int_reg);
195c5f98
AKS		 629 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
630
631 if (adapter->ahw.revision_id >= NX_P3_B1)
632 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864 633 int_state_reg);
195c5f98
AKS		 634 else
635 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864
MC		 636 CRB_INT_VECTOR);
637}
97daee83 638
a120e864
MC		 639static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
640 int num_msix)
641{
642 struct pci_dev *pdev = adapter->pdev;
643 u32 value;
644 int err;
97daee83
DP		 645
646 if (adapter->msix_supported) {
be339aee
DP		 647 netxen_init_msix_entries(adapter, num_msix);
648 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
649 if (err == 0) {
650 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
651 netxen_set_msix_bit(pdev, 1);
97daee83 652
be339aee
DP		 653 if (adapter->rss_supported)
654 adapter->max_sds_rings = num_msix;
97daee83 655
be339aee 656 dev_info(&pdev->dev, "using msi-x interrupts\n");
a120e864 657 return 0;
be339aee 658 }
be339aee 659 /* fall through for msi */
97daee83 660 }
be339aee
DP		 661
662 if (use_msi && !pci_enable_msi(pdev)) {
a120e864 663 value = msi_tgt_status[adapter->ahw.pci_func];
be339aee 664 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
a120e864 665 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
f67f3408 666 adapter->msix_entries[0].vector = pdev->irq;
a120e864
MC		 667 dev_info(&pdev->dev, "using msi interrupts\n");
668 return 0;
be339aee
DP		 669 }
670
b37eb210 671 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
a120e864
MC		 672 return -EIO;
673}
674
b37eb210 675static int netxen_setup_intr(struct netxen_adapter *adapter)
a120e864
MC		 676{
677 struct pci_dev *pdev = adapter->pdev;
678 int num_msix;
679
680 if (adapter->rss_supported)
681 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
682 MSIX_ENTRIES_PER_ADAPTER : 2;
683 else
684 num_msix = 1;
685
686 adapter->max_sds_rings = 1;
687 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
688
689 netxen_initialize_interrupt_registers(adapter);
690 netxen_set_msix_bit(pdev, 0);
691
b37eb210
MC		 692 if (netxen_function_zero(pdev)) {
693 if (!netxen_setup_msi_interrupts(adapter, num_msix))
694 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
695 else
696 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
697 } else {
698 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
699 netxen_setup_msi_interrupts(adapter, num_msix)) {
700 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
701 return -EIO;
702 }
703 }
a120e864 704
b37eb210
MC		 705 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
706 adapter->msix_entries[0].vector = pdev->irq;
707 dev_info(&pdev->dev, "using legacy interrupts\n");
708 }
709 return 0;
97daee83
DP		 710}
711
712static void
713netxen_teardown_intr(struct netxen_adapter *adapter)
714{
715 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
716 pci_disable_msix(adapter->pdev);
717 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
718 pci_disable_msi(adapter->pdev);
719}
720
721static void
722netxen_cleanup_pci_map(struct netxen_adapter *adapter)
723{
724 if (adapter->ahw.db_base != NULL)
725 iounmap(adapter->ahw.db_base);
726 if (adapter->ahw.pci_base0 != NULL)
727 iounmap(adapter->ahw.pci_base0);
728 if (adapter->ahw.pci_base1 != NULL)
729 iounmap(adapter->ahw.pci_base1);
730 if (adapter->ahw.pci_base2 != NULL)
731 iounmap(adapter->ahw.pci_base2);
732}
733
734static int
735netxen_setup_pci_map(struct netxen_adapter *adapter)
736{
97daee83
DP		 737 void __iomem *db_ptr = NULL;
738
71fb62fb 739 resource_size_t mem_base, db_base;
afbe5cd6 740 unsigned long mem_len, db_len = 0;
97daee83
DP		 741
742 struct pci_dev *pdev = adapter->pdev;
743 int pci_func = adapter->ahw.pci_func;
afbe5cd6 744 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 745
746 int err = 0;
747
748 /*
749 * Set the CRB window to invalid. If any register in window 0 is
750 * accessed it should set the window to 0 and then reset it to 1.
751 */
907fa120 752 adapter->ahw.crb_win = -1;
47abe356 753 adapter->ahw.ocm_win = -1;
97daee83
DP		 754
755 /* remap phys address */
756 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
757 mem_len = pci_resource_len(pdev, 0);
97daee83 758
97daee83
DP		 759 /* 128 Meg of memory */
760 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 761
762 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
763 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 764 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 765 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 766 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 767 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
768 ahw->pci_base2 == NULL) {
769 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
770 err = -EIO;
771 goto err_out;
772 }
773
774 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
775
97daee83 776 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 777
778 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
779 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 780 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 781 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
782 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
783 err = -EIO;
784 goto err_out;
785 }
786
97daee83 787 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 788
afbe5cd6
AKS		 789 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
790 if (ahw->pci_base0 == NULL) {
97daee83
DP		 791 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
792 return -EIO;
793 }
afbe5cd6 794 ahw->pci_len0 = mem_len;
97daee83
DP		 795 } else {
796 return -EIO;
797 }
798
195c5f98
AKS		 799 netxen_setup_hwops(adapter);
800
97daee83
DP		 801 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
802
6abb4b83
AKS		 803 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
804 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
805 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
806
807 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 808 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
809 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
810 }
811
97daee83
DP		 812 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
813 goto skip_doorbell;
814
815 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
816 db_len = pci_resource_len(pdev, 4);
817
818 if (db_len == 0) {
819 printk(KERN_ERR "%s: doorbell is disabled\n",
820 netxen_nic_driver_name);
821 err = -EIO;
822 goto err_out;
823 }
824
825 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
826 if (!db_ptr) {
827 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
828 netxen_nic_driver_name);
829 err = -EIO;
830 goto err_out;
831 }
832
833skip_doorbell:
834 adapter->ahw.db_base = db_ptr;
835 adapter->ahw.db_len = db_len;
836 return 0;
837
838err_out:
839 netxen_cleanup_pci_map(adapter);
840 return err;
841}
842
2b9e62ee
DP		 843static void
844netxen_check_options(struct netxen_adapter *adapter)
845{
83f18a55 846 u32 fw_major, fw_minor, fw_build, prev_fw_version;
2b9e62ee
DP		 847 char brd_name[NETXEN_MAX_SHORT_NAME];
848 char serial_num[32];
83f18a55 849 int i, offset, val, err;
06d6c108 850 __le32 *ptr32;
2b9e62ee
DP		 851 struct pci_dev *pdev = adapter->pdev;
852
853 adapter->driver_mismatch = 0;
854
06d6c108 855 ptr32 = (__le32 *)&serial_num;
2b9e62ee
DP		 856 offset = NX_FW_SERIAL_NUM_OFFSET;
857 for (i = 0; i < 8; i++) {
858 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
859 dev_err(&pdev->dev, "error reading board info\n");
860 adapter->driver_mismatch = 1;
861 return;
862 }
863 ptr32[i] = cpu_to_le32(val);
864 offset += sizeof(u32);
865 }
866
867 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
868 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
869 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 870 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 871 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
872
83f18a55
M		 873 /* Get FW Mini Coredump template and store it */
874 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
875 if (adapter->mdump.md_template == NULL ||
876 adapter->fw_version > prev_fw_version) {
877 kfree(adapter->mdump.md_template);
878 adapter->mdump.md_template = NULL;
879 err = netxen_setup_minidump(adapter);
880 if (err)
881 dev_err(&adapter->pdev->dev,
882 "Failed to setup minidump rcode = %d\n", err);
883 }
884 }
885
2b9e62ee 886 if (adapter->portnum == 0) {
b08a92bb
MC		 887 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
888 brd_name))
889 strcpy(serial_num, "Unknown");
2b9e62ee 890
c25c0b9b
DP		 891 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
892 module_name(THIS_MODULE),
2b9e62ee
DP		 893 brd_name, serial_num, adapter->ahw.revision_id);
894 }
895
896 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
897 adapter->driver_mismatch = 1;
898 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
899 fw_major, fw_minor, fw_build);
900 return;
901 }
902
903 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
904 i = NXRD32(adapter, NETXEN_SRE_MISC);
905 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
906 }
907
dc7551cb
MC		 908 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
909 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
910 adapter->ahw.cut_through ? "cut-through" : "legacy");
2b9e62ee
DP		 911
912 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
913 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
914
2b9e62ee
DP		 915 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
916 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
917 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
918 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
919 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
920 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
921 }
922
923 adapter->msix_supported = 0;
924 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
925 adapter->msix_supported = !!use_msi_x;
926 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 927 } else {
928 u32 flashed_ver = 0;
929 netxen_rom_fast_read(adapter,
930 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
931 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
932
933 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
934 switch (adapter->ahw.board_type) {
935 case NETXEN_BRDTYPE_P2_SB31_10G:
936 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
937 adapter->msix_supported = !!use_msi_x;
938 adapter->rss_supported = !!use_msi_x;
939 break;
940 default:
941 break;
942 }
2b9e62ee
DP		 943 }
944 }
945
946 adapter->num_txd = MAX_CMD_DESCRIPTORS;
947
948 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
949 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
950 adapter->max_rds_rings = 3;
951 } else {
952 adapter->num_lro_rxd = 0;
953 adapter->max_rds_rings = 2;
954 }
955}
956
ba599d4f 957static int
6a581e93 958netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 959{
960 int val, err, first_boot;
961 struct pci_dev *pdev = adapter->pdev;
962
2b9e62ee
DP		 963 /* required for NX2031 dummy dma */
964 err = nx_set_dma_mask(adapter);
965 if (err)
966 return err;
967
83f18a55
M		 968 err = netxen_can_start_firmware(adapter);
969
970 if (err < 0)
971 return err;
972
973 if (!err)
96f2ebd2 974 goto wait_init;
0b72e659 975
f98a9f69 976 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 977
978 err = netxen_check_hw_init(adapter, first_boot);
979 if (err) {
980 dev_err(&pdev->dev, "error in init HW init sequence\n");
981 return err;
982 }
983
6a581e93 984 netxen_request_firmware(adapter);
f7185c71 985
67c38fc6 986 err = netxen_need_fw_reset(adapter);
1dbc84a7 987 if (err < 0)
db4cfd8a 988 goto err_out;
1dbc84a7 989 if (err == 0)
e3feb266 990 goto pcie_strap_init;
67c38fc6 991
ba599d4f 992 if (first_boot != 0x55555555) {
f98a9f69 993 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 994 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 995 msleep(1);
996 }
567c6c4e 997
f98a9f69 998 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 999 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
1000 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
1001
567c6c4e
DP		 1002 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1003 netxen_set_port_mode(adapter);
1004
db4cfd8a
DP		 1005 err = netxen_load_firmware(adapter);
1006 if (err)
1007 goto err_out;
ba599d4f 1008
6a581e93
DP		 1009 netxen_release_firmware(adapter);
1010
ba599d4f
DP		 1011 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1012
1013 /* Initialize multicast addr pool owners */
1014 val = 0x7654;
1e2d0059 1015 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 1016 val |= 0x0f000000;
f98a9f69 1017 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 1018
1019 }
1020
83ac51fa 1021 err = netxen_init_dummy_dma(adapter);
ba599d4f 1022 if (err)
db4cfd8a 1023 goto err_out;
ba599d4f
DP		 1024
1025 /*
1026 * Tell the hardware our version number.
1027 */
1028 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1029 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1030 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 1031 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 1032
e3feb266
RB		 1033pcie_strap_init:
1034 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1035 netxen_pcie_strap_init(adapter);
1036
96f2ebd2 1037wait_init:
ba599d4f
DP		 1038 /* Handshake with the card before we register the devices. */
1039 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1040 if (err) {
83ac51fa 1041 netxen_free_dummy_dma(adapter);
db4cfd8a 1042 goto err_out;
ba599d4f
DP		 1043 }
1044
8f9b3f69
AKS		 1045 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1046
68b3cae0
DP		 1047 nx_update_dma_mask(adapter);
1048
6a581e93 1049 netxen_check_options(adapter);
68b3cae0 1050
74c520da
AKS		 1051 adapter->need_fw_reset = 0;
1052
ec5c50cb 1053 /* fall through and release firmware */
db4cfd8a
DP		 1054
1055err_out:
1056 netxen_release_firmware(adapter);
1057 return err;
ba599d4f
DP		 1058}
1059
9f5bc7f1
DP		 1060static int
1061netxen_nic_request_irq(struct netxen_adapter *adapter)
1062{
1063 irq_handler_t handler;
d8b100c5
DP		 1064 struct nx_host_sds_ring *sds_ring;
1065 int err, ring;
1066
ab392d2d 1067 unsigned long flags = 0;
9f5bc7f1 1068 struct net_device *netdev = adapter->netdev;
d8b100c5 1069 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1070
9f5bc7f1
DP		 1071 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1072 handler = netxen_msix_intr;
1073 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1074 handler = netxen_msi_intr;
1075 else {
1076 flags |= IRQF_SHARED;
1077 handler = netxen_intr;
1078 }
1079 adapter->irq = netdev->irq;
1080
d8b100c5
DP		 1081 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1082 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1083 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1084 err = request_irq(sds_ring->irq, handler,
1085 flags, sds_ring->name, sds_ring);
1086 if (err)
1087 return err;
1088 }
1089
1090 return 0;
1091}
1092
1093static void
1094netxen_nic_free_irq(struct netxen_adapter *adapter)
1095{
1096 int ring;
1097 struct nx_host_sds_ring *sds_ring;
1098
1099 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1100
1101 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1102 sds_ring = &recv_ctx->sds_rings[ring];
1103 free_irq(sds_ring->irq, sds_ring);
1104 }
9f5bc7f1
DP		 1105}
1106
ca2ef330
DP		 1107static void
1108netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1109{
1110 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1111 adapter->coal.normal.data.rx_time_us =
1112 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1113 adapter->coal.normal.data.rx_packets =
1114 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1115 adapter->coal.normal.data.tx_time_us =
1116 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1117 adapter->coal.normal.data.tx_packets =
1118 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1119}
1120
6f771419 1121/* with rtnl_lock */
9f5bc7f1 1122static int
6f771419 1123__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1124{
1125 int err;
1126
db4cfd8a
DP		 1127 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1128 return -EIO;
1129
9f5bc7f1
DP		 1130 err = adapter->init_port(adapter, adapter->physical_port);
1131 if (err) {
1132 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1133 netxen_nic_driver_name, adapter->portnum);
1134 return err;
1135 }
3d0a3cc9 1136 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1137 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1138
3d0a3cc9
DP		 1139 adapter->set_multi(netdev);
1140 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1141
1142 adapter->ahw.linkup = 0;
9f5bc7f1 1143
d8b100c5
DP		 1144 if (adapter->max_sds_rings > 1)
1145 netxen_config_rss(adapter, 1);
9f5bc7f1 1146
ca2ef330
DP		 1147 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1148 netxen_config_intr_coalesce(adapter);
1149
e4baaf71 1150 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1151 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1152
b2af9cb0
DP		 1153 netxen_napi_enable(adapter);
1154
5103c9f7 1155 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1156 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1157 else
1158 netxen_nic_set_link_parameters(adapter);
1159
6a581e93 1160 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1161 return 0;
1162}
1163
6f771419
AKS		 1164/* Usage: During resume and firmware recovery module.*/
1165
1166static inline int
1167netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1168{
1169 int err = 0;
1170
1171 rtnl_lock();
1172 if (netif_running(netdev))
1173 err = __netxen_nic_up(adapter, netdev);
1174 rtnl_unlock();
1175
1176 return err;
1177}
1178
1179/* with rtnl_lock */
9f5bc7f1 1180static void
6f771419 1181__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1182{
db4cfd8a
DP		 1183 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1184 return;
1185
f2251f66
AKS		 1186 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1187 return;
6a581e93 1188
f2251f66 1189 smp_mb();
b2af9cb0 1190 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1191 netif_carrier_off(netdev);
b2af9cb0 1192 netif_tx_disable(netdev);
9f5bc7f1 1193
d478af0d
SC		 1194 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1195 netxen_linkevent_request(adapter, 0);
1196
9f5bc7f1
DP		 1197 if (adapter->stop_port)
1198 adapter->stop_port(adapter);
1199
5cf4d323
DP		 1200 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1201 netxen_p3_free_mac_list(adapter);
1202
22b5794b
AKS		 1203 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1204
be339aee
DP		 1205 netxen_napi_disable(adapter);
1206
9f5bc7f1 1207 netxen_release_tx_buffers(adapter);
b2af9cb0 1208 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1209}
1210
6f771419
AKS		 1211/* Usage: During suspend and firmware recovery module */
1212
1213static inline void
1214netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1215{
1216 rtnl_lock();
1217 if (netif_running(netdev))
1218 __netxen_nic_down(adapter, netdev);
1219 rtnl_unlock();
1220
1221}
9f5bc7f1
DP		 1222
1223static int
1224netxen_nic_attach(struct netxen_adapter *adapter)
1225{
1226 struct net_device *netdev = adapter->netdev;
1227 struct pci_dev *pdev = adapter->pdev;
becf46a0 1228 int err, ring;
d8b100c5 1229 struct nx_host_rds_ring *rds_ring;
d877f1e3 1230 struct nx_host_tx_ring *tx_ring;
01da0c2b 1231 u32 capab2;
9f5bc7f1 1232
7042cd8f
AKS		 1233 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1234 return 0;
1235
9f5bc7f1 1236 err = netxen_init_firmware(adapter);
232e7d68
DP		 1237 if (err)
1238 return err;
1239
01da0c2b
RB		 1240 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1241 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1242 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1243 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1244 adapter->flags |= NETXEN_FW_MSS_CAP;
1245 }
1246
232e7d68
DP		 1247 err = netxen_napi_add(adapter, netdev);
1248 if (err)
1249 return err;
9f5bc7f1 1250
9f5bc7f1
DP		 1251 err = netxen_alloc_sw_resources(adapter);
1252 if (err) {
1253 printk(KERN_ERR "%s: Error in setting sw resources\n",
1254 netdev->name);
1255 return err;
1256 }
1257
9f5bc7f1
DP		 1258 err = netxen_alloc_hw_resources(adapter);
1259 if (err) {
1260 printk(KERN_ERR "%s: Error in setting hw resources\n",
1261 netdev->name);
1262 goto err_out_free_sw;
1263 }
1264
4f96b988 1265 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1266 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1267 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1268 crb_cmd_producer[adapter->portnum]);
1269 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1270 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1271
cb2107be
DP		 1272 tx_ring->producer = 0;
1273 tx_ring->sw_consumer = 0;
1274
1275 netxen_nic_update_cmd_producer(adapter, tx_ring);
1276 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1277 }
1278
d8b100c5
DP		 1279 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1280 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1281 netxen_post_rx_buffers(adapter, ring, rds_ring);
1282 }
9f5bc7f1
DP		 1283
1284 err = netxen_nic_request_irq(adapter);
1285 if (err) {
1286 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1287 netdev->name);
1288 goto err_out_free_rxbuf;
1289 }
1290
ca2ef330
DP		 1291 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1292 netxen_nic_init_coalesce_defaults(adapter);
1293
fa3ce355
NK		 1294 netxen_create_sysfs_entries(adapter);
1295
9f5bc7f1
DP		 1296 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1297 return 0;
1298
1299err_out_free_rxbuf:
1300 netxen_release_rx_buffers(adapter);
1301 netxen_free_hw_resources(adapter);
1302err_out_free_sw:
1303 netxen_free_sw_resources(adapter);
1304 return err;
1305}
1306
1307static void
1308netxen_nic_detach(struct netxen_adapter *adapter)
1309{
7042cd8f
AKS		 1310 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1311 return;
1312
fa3ce355
NK		 1313 netxen_remove_sysfs_entries(adapter);
1314
9f5bc7f1 1315 netxen_free_hw_resources(adapter);
cf981ffb 1316 netxen_release_rx_buffers(adapter);
be339aee 1317 netxen_nic_free_irq(adapter);
232e7d68 1318 netxen_napi_del(adapter);
9f5bc7f1
DP		 1319 netxen_free_sw_resources(adapter);
1320
1321 adapter->is_up = 0;
1322}
1323
7042cd8f
AKS		 1324int
1325netxen_nic_reset_context(struct netxen_adapter *adapter)
1326{
1327 int err = 0;
1328 struct net_device *netdev = adapter->netdev;
1329
6a581e93
DP		 1330 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1331 return -EBUSY;
1332
7042cd8f
AKS		 1333 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1334
6a581e93
DP		 1335 netif_device_detach(netdev);
1336
7042cd8f 1337 if (netif_running(netdev))
6f771419 1338 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1339
1340 netxen_nic_detach(adapter);
1341
6a581e93
DP		 1342 if (netif_running(netdev)) {
1343 err = netxen_nic_attach(adapter);
1344 if (!err)
6f771419 1345 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1346
6a581e93
DP		 1347 if (err)
1348 goto done;
1349 }
1350
1351 netif_device_attach(netdev);
7042cd8f 1352 }
6a581e93 1353
7042cd8f 1354done:
6a581e93 1355 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1356 return err;
1357}
1358
f17443f4
DP		 1359static int
1360netxen_setup_netdev(struct netxen_adapter *adapter,
1361 struct net_device *netdev)
1362{
1363 int err = 0;
1364 struct pci_dev *pdev = adapter->pdev;
1365
f17443f4
DP		 1366 adapter->mc_enabled = 0;
1367 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1368 adapter->max_mc_count = 38;
1369 else
1370 adapter->max_mc_count = 16;
1371
1372 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1373 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1374
1375 netxen_nic_change_mtu(netdev, netdev->mtu);
1376
1377 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1378
066413da
MM		 1379 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1380 NETIF_F_RXCSUM;
f17443f4 1381
066413da
MM		 1382 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1383 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1384
1385 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1386
1387 if (adapter->pci_using_dac) {
1388 netdev->features |= NETIF_F_HIGHDMA;
1389 netdev->vlan_features |= NETIF_F_HIGHDMA;
1390 }
1391
028afe71 1392 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
f646968f 1393 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
028afe71 1394
1bb482f8 1395 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1396 netdev->hw_features |= NETIF_F_LRO;
1397
1398 netdev->features |= netdev->hw_features;
1bb482f8 1399
f17443f4
DP		 1400 netdev->irq = adapter->msix_entries[0].vector;
1401
74c520da 1402 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1403
1404 if (netxen_read_mac_addr(adapter))
1405 dev_warn(&pdev->dev, "failed to read mac addr\n");
1406
1407 netif_carrier_off(netdev);
f17443f4
DP		 1408
1409 err = register_netdev(netdev);
1410 if (err) {
1411 dev_err(&pdev->dev, "failed to register net device\n");
1412 return err;
1413 }
1414
1415 return 0;
1416}
1417
dce87b96 1418#ifdef CONFIG_PCIEAER
1419static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1420{
1421 struct pci_dev *pdev = adapter->pdev;
1422 struct pci_dev *root = pdev->bus->self;
1423 u32 aer_pos;
1424
e4d1aa40
NA		 1425 /* root bus? */
1426 if (!root)
1427 return;
1428
dce87b96 1429 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1430 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1431 return;
1432
62f87c0e 1433 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
dce87b96 1434 return;
1435
1436 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1437 if (!aer_pos)
1438 return;
1439
1440 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1441}
1442#endif
1443
c3f9c88c 1444static int
3d396eb1
AK		 1445netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1446{
1447 struct net_device *netdev = NULL;
1448 struct netxen_adapter *adapter = NULL;
2956640d 1449 int i = 0, err;
3176ff3e 1450 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1451 uint8_t revision_id;
5a6f95e6 1452 u32 val;
3d396eb1 1453
688328c7
EB		 1454 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1455 pr_warning("%s: chip revisions between 0x%x-0x%x "
11d89d63 1456 "will not be enabled.\n",
c25c0b9b 1457 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1458 return -ENODEV;
1459 }
1460
3d396eb1
AK		 1461 if ((err = pci_enable_device(pdev)))
1462 return err;
2956640d 1463
3d396eb1
AK		 1464 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1465 err = -ENODEV;
1466 goto err_out_disable_pdev;
1467 }
1468
1469 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1470 goto err_out_disable_pdev;
1471
e87ad553
AKS		 1472 if (NX_IS_REVISION_P3(pdev->revision))
1473 pci_enable_pcie_error_reporting(pdev);
1474
3d396eb1 1475 pci_set_master(pdev);
3176ff3e
MT		 1476
1477 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1478 if(!netdev) {
f17443f4 1479 err = -ENOMEM;
3176ff3e
MT		 1480 goto err_out_free_res;
1481 }
1482
3176ff3e
MT		 1483 SET_NETDEV_DEV(netdev, &pdev->dev);
1484
4cf1653a 1485 adapter = netdev_priv(netdev);
2956640d
DP		 1486 adapter->netdev = netdev;
1487 adapter->pdev = pdev;
13ba9c77 1488 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1489
1490 revision_id = pdev->revision;
1491 adapter->ahw.revision_id = revision_id;
1492
f03b0ebd
DP		 1493 rwlock_init(&adapter->ahw.crb_lock);
1494 spin_lock_init(&adapter->ahw.mem_lock);
1495
d8b100c5 1496 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1497 INIT_LIST_HEAD(&adapter->mac_list);
8a7fbfab 1498 INIT_LIST_HEAD(&adapter->ip_list);
3ce06a32 1499
97daee83
DP		 1500 err = netxen_setup_pci_map(adapter);
1501 if (err)
6c80b18d 1502 goto err_out_free_netdev;
3d396eb1 1503
2d1a3bbd 1504 /* This will be reset for mezz cards */
3176ff3e 1505 adapter->portnum = pci_func_id;
3176ff3e 1506
f17443f4
DP		 1507 err = netxen_nic_get_board_info(adapter);
1508 if (err) {
1509 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1510 goto err_out_iounmap;
1511 }
6c80b18d 1512
dce87b96 1513#ifdef CONFIG_PCIEAER
1514 netxen_mask_aer_correctable(adapter);
1515#endif
1516
13ba9c77 1517 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1518 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1519 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1520 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1521 if (pci_func_id >= 2)
13ba9c77 1522 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1523 break;
1524 default:
1525 break;
1526 }
13ba9c77 1527
e933d019
AKS		 1528 err = netxen_check_flash_fw_compatibility(adapter);
1529 if (err)
1530 goto err_out_iounmap;
1531
5a6f95e6
RB		 1532 if (adapter->portnum == 0) {
1533 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1534 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1535 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1536 adapter->need_fw_reset = 1;
1537 }
1538 }
1539
6a581e93 1540 err = netxen_start_firmware(adapter);
0b72e659 1541 if (err)
8f9b3f69 1542 goto err_out_decr_ref;
f17443f4 1543
3d396eb1 1544 /*
6c80b18d 1545 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1546 */
dcd56fdb 1547 adapter->physical_port = adapter->portnum;
4f96b988 1548 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1549 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1550 if (i != 0x55555555)
1551 adapter->physical_port = i;
1552 }
6c80b18d 1553
6a581e93 1554 netxen_nic_clear_stats(adapter);
2956640d 1555
b37eb210
MC		 1556 err = netxen_setup_intr(adapter);
1557
1558 if (err) {
1559 dev_err(&adapter->pdev->dev,
1560 "Failed to setup interrupts, error = %d\n", err);
1561 goto err_out_disable_msi;
1562 }
2956640d 1563
f17443f4 1564 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1565 if (err)
2956640d 1566 goto err_out_disable_msi;
6c80b18d
MT		 1567
1568 pci_set_drvdata(pdev, adapter);
3d396eb1 1569
6a581e93
DP		 1570 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1571
1e2d0059 1572 switch (adapter->ahw.port_type) {
2956640d
DP		 1573 case NETXEN_NIC_GBE:
1574 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1575 adapter->netdev->name);
1576 break;
1577 case NETXEN_NIC_XGBE:
1578 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1579 adapter->netdev->name);
1580 break;
3d396eb1 1581 }
3d396eb1 1582
70f9cf89
DP		 1583 netxen_create_diag_entries(adapter);
1584
2956640d
DP		 1585 return 0;
1586
1587err_out_disable_msi:
97daee83 1588 netxen_teardown_intr(adapter);
6c80b18d 1589
83ac51fa 1590 netxen_free_dummy_dma(adapter);
3d396eb1 1591
8f9b3f69 1592err_out_decr_ref:
6a581e93
DP		 1593 nx_decr_dev_ref_cnt(adapter);
1594
2956640d 1595err_out_iounmap:
97daee83 1596 netxen_cleanup_pci_map(adapter);
cb8011ad 1597
6c80b18d
MT		 1598err_out_free_netdev:
1599 free_netdev(netdev);
1600
1601err_out_free_res:
3d396eb1 1602 pci_release_regions(pdev);
6c80b18d
MT		 1603
1604err_out_disable_pdev:
2956640d 1605 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1606 pci_disable_device(pdev);
1607 return err;
1608}
1609
83f18a55
M		 1610static
1611void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1612{
1613 kfree(adapter->mdump.md_template);
1614 adapter->mdump.md_template = NULL;
1615
1616 if (adapter->mdump.md_capture_buff) {
1617 vfree(adapter->mdump.md_capture_buff);
1618 adapter->mdump.md_capture_buff = NULL;
1619 }
1620}
1621
c3f9c88c 1622static void netxen_nic_remove(struct pci_dev *pdev)
3d396eb1
AK		 1623{
1624 struct netxen_adapter *adapter;
3176ff3e 1625 struct net_device *netdev;
3d396eb1 1626
6c80b18d 1627 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1628 if (adapter == NULL)
1629 return;
1630
6c80b18d
MT		 1631 netdev = adapter->netdev;
1632
6a581e93
DP		 1633 netxen_cancel_fw_work(adapter);
1634
96acb6eb
DP		 1635 unregister_netdev(netdev);
1636
e424fa9d
AKS		 1637 cancel_work_sync(&adapter->tx_timeout_task);
1638
8a7fbfab 1639 netxen_free_ip_list(adapter, false);
7042cd8f 1640 netxen_nic_detach(adapter);
3d396eb1 1641
6a581e93
DP		 1642 nx_decr_dev_ref_cnt(adapter);
1643
439b454e 1644 if (adapter->portnum == 0)
83ac51fa 1645 netxen_free_dummy_dma(adapter);
96acb6eb 1646
6a581e93
DP		 1647 clear_bit(__NX_RESETTING, &adapter->state);
1648
97daee83 1649 netxen_teardown_intr(adapter);
b37eb210 1650 netxen_set_interrupt_mode(adapter, 0);
70f9cf89
DP		 1651 netxen_remove_diag_entries(adapter);
1652
97daee83 1653 netxen_cleanup_pci_map(adapter);
595e3fb8 1654
f7185c71
DP		 1655 netxen_release_firmware(adapter);
1656
83f18a55
M		 1657 if (NX_IS_REVISION_P3(pdev->revision)) {
1658 netxen_cleanup_minidump(adapter);
e87ad553 1659 pci_disable_pcie_error_reporting(pdev);
83f18a55 1660 }
e87ad553 1661
595e3fb8 1662 pci_release_regions(pdev);
3052246c 1663 pci_disable_device(pdev);
595e3fb8
MT		 1664 pci_set_drvdata(pdev, NULL);
1665
6c80b18d 1666 free_netdev(netdev);
3d396eb1 1667}
e87ad553
AKS		 1668
1669static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1670{
0b72e659
DP		 1671 struct net_device *netdev = adapter->netdev;
1672
1673 netif_device_detach(netdev);
1674
6a581e93
DP		 1675 netxen_cancel_fw_work(adapter);
1676
0b72e659
DP		 1677 if (netif_running(netdev))
1678 netxen_nic_down(adapter, netdev);
1679
e424fa9d
AKS		 1680 cancel_work_sync(&adapter->tx_timeout_task);
1681
7042cd8f 1682 netxen_nic_detach(adapter);
0b72e659 1683
22b5794b
AKS		 1684 if (adapter->portnum == 0)
1685 netxen_free_dummy_dma(adapter);
1686
6a581e93
DP		 1687 nx_decr_dev_ref_cnt(adapter);
1688
1689 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1690}
0b72e659 1691
e87ad553 1692static int netxen_nic_attach_func(struct pci_dev *pdev)
0b72e659
DP		 1693{
1694 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1695 struct net_device *netdev = adapter->netdev;
1696 int err;
1697
0b72e659
DP		 1698 err = pci_enable_device(pdev);
1699 if (err)
1700 return err;
1701
bc86fcba
AKS		 1702 pci_set_power_state(pdev, PCI_D0);
1703 pci_set_master(pdev);
1704 pci_restore_state(pdev);
1705
907fa120 1706 adapter->ahw.crb_win = -1;
47abe356 1707 adapter->ahw.ocm_win = -1;
0b72e659 1708
6a581e93 1709 err = netxen_start_firmware(adapter);
0b72e659
DP		 1710 if (err) {
1711 dev_err(&pdev->dev, "failed to start firmware\n");
1712 return err;
1713 }
1714
1715 if (netif_running(netdev)) {
1716 err = netxen_nic_attach(adapter);
1717 if (err)
6a581e93 1718 goto err_out;
0b72e659
DP		 1719
1720 err = netxen_nic_up(adapter, netdev);
1721 if (err)
6a581e93 1722 goto err_out_detach;
0b72e659 1723
57569d0e 1724 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1725 }
1726
bc86fcba 1727 netif_device_attach(netdev);
6a581e93 1728 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1729 return 0;
6a581e93
DP		 1730
1731err_out_detach:
1732 netxen_nic_detach(adapter);
1733err_out:
1734 nx_decr_dev_ref_cnt(adapter);
1735 return err;
0b72e659 1736}
e87ad553
AKS		 1737
1738static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1739 pci_channel_state_t state)
1740{
1741 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1742
1743 if (state == pci_channel_io_perm_failure)
1744 return PCI_ERS_RESULT_DISCONNECT;
1745
1746 if (nx_dev_request_aer(adapter))
1747 return PCI_ERS_RESULT_RECOVERED;
1748
1749 netxen_nic_detach_func(adapter);
1750
1751 pci_disable_device(pdev);
1752
1753 return PCI_ERS_RESULT_NEED_RESET;
1754}
1755
1756static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1757{
1758 int err = 0;
1759
1760 err = netxen_nic_attach_func(pdev);
1761
1762 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1763}
1764
1765static void netxen_io_resume(struct pci_dev *pdev)
1766{
1767 pci_cleanup_aer_uncorrect_error_status(pdev);
1768}
1769
1770static void netxen_nic_shutdown(struct pci_dev *pdev)
1771{
1772 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1773
1774 netxen_nic_detach_func(adapter);
1775
1776 if (pci_save_state(pdev))
1777 return;
1778
1779 if (netxen_nic_wol_supported(adapter)) {
1780 pci_enable_wake(pdev, PCI_D3cold, 1);
1781 pci_enable_wake(pdev, PCI_D3hot, 1);
1782 }
1783
1784 pci_disable_device(pdev);
1785}
1786
1787#ifdef CONFIG_PM
1788static int
1789netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1790{
1791 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1792 int retval;
1793
1794 netxen_nic_detach_func(adapter);
1795
1796 retval = pci_save_state(pdev);
1797 if (retval)
1798 return retval;
1799
1800 if (netxen_nic_wol_supported(adapter)) {
1801 pci_enable_wake(pdev, PCI_D3cold, 1);
1802 pci_enable_wake(pdev, PCI_D3hot, 1);
1803 }
1804
1805 pci_disable_device(pdev);
1806 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1807
1808 return 0;
1809}
1810
1811static int
1812netxen_nic_resume(struct pci_dev *pdev)
1813{
1814 return netxen_nic_attach_func(pdev);
1815}
01542cd1 1816#endif
0b72e659 1817
3d396eb1
AK		 1818static int netxen_nic_open(struct net_device *netdev)
1819{
4cf1653a 1820 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1821 int err = 0;
3d396eb1 1822
dcd56fdb
DP		 1823 if (adapter->driver_mismatch)
1824 return -EIO;
1825
7042cd8f
AKS		 1826 err = netxen_nic_attach(adapter);
1827 if (err)
1828 return err;
2956640d 1829
6f771419 1830 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1831 if (err)
1832 goto err_out;
05aaa02d 1833
dcd56fdb 1834 netif_start_queue(netdev);
3d396eb1
AK		 1835
1836 return 0;
2956640d 1837
9f5bc7f1
DP		 1838err_out:
1839 netxen_nic_detach(adapter);
2956640d 1840 return err;
3d396eb1
AK		 1841}
1842
1843/*
1844 * netxen_nic_close - Disables a network interface entry point
1845 */
1846static int netxen_nic_close(struct net_device *netdev)
1847{
3176ff3e 1848 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1849
6f771419 1850 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1851 return 0;
1852}
1853
1bcfd790
DP		 1854static void
1855netxen_tso_check(struct net_device *netdev,
1856 struct nx_host_tx_ring *tx_ring,
1857 struct cmd_desc_type0 *first_desc,
1858 struct sk_buff *skb)
cd1f8160 1859{
391587c3 1860 u8 opcode = TX_ETHER_PKT;
cdff1036 1861 __be16 protocol = skb->protocol;
028afe71 1862 u16 flags = 0, vid = 0;
1bcfd790 1863 u32 producer;
028afe71 1864 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1865 struct cmd_desc_type0 *hwdesc;
028afe71 1866 struct vlan_ethhdr *vh;
cdff1036 1867
09640e63 1868 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1869
1870 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1871 protocol = vh->h_vlan_encapsulated_proto;
1872 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1873
1874 } else if (vlan_tx_tag_present(skb)) {
028afe71
DP		 1875 flags = FLAGS_VLAN_OOB;
1876 vid = vlan_tx_tag_get(skb);
1877 netxen_set_tx_vlan_tci(first_desc, vid);
1878 vlan_oob = 1;
cdff1036 1879 }
cd1f8160 1880
391587c3
DP		 1881 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1882 skb_shinfo(skb)->gso_size > 0) {
1883
1bcfd790
DP		 1884 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1885
1886 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1887 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1888 if (vlan_oob) {
1889 first_desc->total_hdr_length += VLAN_HLEN;
1890 first_desc->tcp_hdr_offset = VLAN_HLEN;
1891 first_desc->ip_hdr_offset = VLAN_HLEN;
1892 /* Only in case of TSO on vlan device */
1893 flags |= FLAGS_VLAN_TAGGED;
1894 }
391587c3 1895
09640e63 1896 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1897 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1898 tso = 1;
cd1f8160
DP		 1899
1900 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1901 u8 l4proto;
1902
09640e63 1903 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1904 l4proto = ip_hdr(skb)->protocol;
1905
1906 if (l4proto == IPPROTO_TCP)
1907 opcode = TX_TCP_PKT;
1908 else if(l4proto == IPPROTO_UDP)
1909 opcode = TX_UDP_PKT;
09640e63 1910 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1911 l4proto = ipv6_hdr(skb)->nexthdr;
1912
1913 if (l4proto == IPPROTO_TCP)
1914 opcode = TX_TCPV6_PKT;
1915 else if(l4proto == IPPROTO_UDP)
1916 opcode = TX_UDPV6_PKT;
1917 }
cd1f8160 1918 }
028afe71
DP		 1919
1920 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1921 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1922 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1923
1924 if (!tso)
1925 return;
1926
1927 /* For LSO, we need to copy the MAC/IP/TCP headers into
1928 * the descriptor ring
1929 */
1930 producer = tx_ring->producer;
1931 copied = 0;
1932 offset = 2;
1933
028afe71
DP		 1934 if (vlan_oob) {
1935 /* Create a TSO vlan header template for firmware */
1936
1937 hwdesc = &tx_ring->desc_head[producer];
1938 tx_ring->cmd_buf_arr[producer].skb = NULL;
1939
1940 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1941 hdr_len + VLAN_HLEN);
1942
1943 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1944 skb_copy_from_linear_data(skb, vh, 12);
1945 vh->h_vlan_proto = htons(ETH_P_8021Q);
1946 vh->h_vlan_TCI = htons(vid);
1947 skb_copy_from_linear_data_offset(skb, 12,
1948 (char *)vh + 16, copy_len - 16);
1949
545eb370 1950 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1951 offset = 0;
1952
1953 producer = get_next_index(producer, tx_ring->num_desc);
1954 }
1955
1bcfd790
DP		 1956 while (copied < hdr_len) {
1957
1958 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1959 (hdr_len - copied));
1960
1961 hwdesc = &tx_ring->desc_head[producer];
1962 tx_ring->cmd_buf_arr[producer].skb = NULL;
1963
1964 skb_copy_from_linear_data_offset(skb, copied,
1965 (char *)hwdesc + offset, copy_len);
1966
1967 copied += copy_len;
1968 offset = 0;
1969
1970 producer = get_next_index(producer, tx_ring->num_desc);
1971 }
1972
1973 tx_ring->producer = producer;
1974 barrier();
cd1f8160
DP		 1975}
1976
ce644ed4
DP		 1977static int
1978netxen_map_tx_skb(struct pci_dev *pdev,
1979 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1980{
ce644ed4
DP		 1981 struct netxen_skb_frag *nf;
1982 struct skb_frag_struct *frag;
1983 int i, nr_frags;
1984 dma_addr_t map;
1985
1986 nr_frags = skb_shinfo(skb)->nr_frags;
1987 nf = &pbuf->frag_array[0];
1988
1989 map = pci_map_single(pdev, skb->data,
1990 skb_headlen(skb), PCI_DMA_TODEVICE);
1991 if (pci_dma_mapping_error(pdev, map))
1992 goto out_err;
6f703406 1993
ce644ed4
DP		 1994 nf->dma = map;
1995 nf->length = skb_headlen(skb);
1996
1997 for (i = 0; i < nr_frags; i++) {
1998 frag = &skb_shinfo(skb)->frags[i];
1999 nf = &pbuf->frag_array[i+1];
2000
9e903e08 2001 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 2002 DMA_TO_DEVICE);
2003 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 2004 goto unwind;
2005
2006 nf->dma = map;
9e903e08 2007 nf->length = skb_frag_size(frag);
ce644ed4
DP		 2008 }
2009
2010 return 0;
6f703406 2011
ce644ed4 2012unwind:
cf503e8f
DP		 2013 while (--i >= 0) {
2014 nf = &pbuf->frag_array[i+1];
ce644ed4 2015 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
a05948f2 2016 nf->dma = 0ULL;
6f703406 2017 }
ce644ed4
DP		 2018
2019 nf = &pbuf->frag_array[0];
2020 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
a05948f2 2021 nf->dma = 0ULL;
ce644ed4
DP		 2022
2023out_err:
2024 return -ENOMEM;
6f703406
DP		 2025}
2026
d32cc3d2
DP		 2027static inline void
2028netxen_clear_cmddesc(u64 *desc)
2029{
1bcfd790
DP		 2030 desc[0] = 0ULL;
2031 desc[2] = 0ULL;
d32cc3d2
DP		 2032}
2033
61357325 2034static netdev_tx_t
d32cc3d2 2035netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 2036{
3176ff3e 2037 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 2038 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 2039 struct netxen_cmd_buffer *pbuf;
3d396eb1 2040 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 2041 struct cmd_desc_type0 *hwdesc, *first_desc;
2042 struct pci_dev *pdev;
391587c3 2043 int i, k;
c968bdf6 2044 int delta = 0;
2045 struct skb_frag_struct *frag;
3d396eb1 2046
cb2107be 2047 u32 producer;
ce644ed4 2048 int frag_count, no_of_desc;
d877f1e3 2049 u32 num_txd = tx_ring->num_desc;
3d396eb1 2050
3d396eb1
AK		 2051 frag_count = skb_shinfo(skb)->nr_frags + 1;
2052
c968bdf6 2053 /* 14 frags supported for normal packet and
2054 * 32 frags supported for TSO packet
2055 */
2056 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2057
2058 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2059 frag = &skb_shinfo(skb)->frags[i];
9e903e08 2060 delta += skb_frag_size(frag);
c968bdf6 2061 }
2062
2063 if (!__pskb_pull_tail(skb, delta))
2064 goto drop_packet;
2065
2066 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2067 }
d877f1e3 2068 /* 4 fragments per cmd des */
3d396eb1 2069 no_of_desc = (frag_count + 3) >> 2;
53a01e00 2070
7a9905e6 2071 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2072 netif_stop_queue(netdev);
7a9905e6
RB		 2073 smp_mb();
2074 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2075 netif_start_queue(netdev);
2076 else
2077 return NETDEV_TX_BUSY;
53a01e00 2078 }
3d396eb1 2079
cb2107be 2080 producer = tx_ring->producer;
ce644ed4 2081 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2082
1bcfd790 2083 pdev = adapter->pdev;
391587c3 2084
ce644ed4 2085 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2086 goto drop_packet;
391587c3 2087
3d396eb1 2088 pbuf->skb = skb;
3d396eb1 2089 pbuf->frag_count = frag_count;
6f703406 2090
1bcfd790
DP		 2091 first_desc = hwdesc = &tx_ring->desc_head[producer];
2092 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2093
ce644ed4
DP		 2094 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2095 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2096
ce644ed4 2097 for (i = 0; i < frag_count; i++) {
3d396eb1 2098
ce644ed4
DP		 2099 k = i % 4;
2100
2101 if ((k == 0) && (i > 0)) {
2102 /* move to next desc.*/
ba53e6b4 2103 producer = get_next_index(producer, num_txd);
d877f1e3 2104 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2105 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2106 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2107 }
3d396eb1 2108
ce644ed4 2109 buffrag = &pbuf->frag_array[i];
3d396eb1 2110
ce644ed4 2111 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2112 switch (k) {
2113 case 0:
ce644ed4 2114 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2115 break;
2116 case 1:
ce644ed4 2117 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2118 break;
2119 case 2:
ce644ed4 2120 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2121 break;
2122 case 3:
ce644ed4 2123 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2124 break;
2125 }
3d396eb1 2126 }
ce644ed4 2127
1bcfd790 2128 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2129
1bcfd790 2130 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2131
1bcfd790 2132 adapter->stats.txbytes += skb->len;
ba53e6b4 2133 adapter->stats.xmitcalled++;
3d396eb1 2134
c82b9d7f
ED		 2135 netxen_nic_update_cmd_producer(adapter, tx_ring);
2136
3d396eb1 2137 return NETDEV_TX_OK;
6f703406
DP		 2138
2139drop_packet:
2140 adapter->stats.txdropped++;
2141 dev_kfree_skb_any(skb);
2142 return NETDEV_TX_OK;
3d396eb1
AK		 2143}
2144
a97342f9
DP		 2145static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2146{
2147 struct net_device *netdev = adapter->netdev;
2148 uint32_t temp, temp_state, temp_val;
2149 int rv = 0;
2150
f98a9f69 2151 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2152
2153 temp_state = nx_get_temp_state(temp);
2154 temp_val = nx_get_temp_val(temp);
2155
2156 if (temp_state == NX_TEMP_PANIC) {
2157 printk(KERN_ALERT
2158 "%s: Device temperature %d degrees C exceeds"
2159 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2160 netdev->name, temp_val);
a97342f9
DP		 2161 rv = 1;
2162 } else if (temp_state == NX_TEMP_WARN) {
2163 if (adapter->temp == NX_TEMP_NORMAL) {
2164 printk(KERN_ALERT
2165 "%s: Device temperature %d degrees C "
2166 "exceeds operating range."
2167 " Immediate action needed.\n",
e4135c2d 2168 netdev->name, temp_val);
a97342f9
DP		 2169 }
2170 } else {
2171 if (adapter->temp == NX_TEMP_WARN) {
2172 printk(KERN_INFO
2173 "%s: Device temperature is now %d degrees C"
e4135c2d 2174 " in normal range.\n", netdev->name,
a97342f9
DP		 2175 temp_val);
2176 }
2177 }
2178 adapter->temp = temp_state;
2179 return rv;
2180}
2181
3bf26ce3 2182void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2183{
2184 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2185
2186 if (adapter->ahw.linkup && !linkup) {
2187 printk(KERN_INFO "%s: %s NIC Link is down\n",
2188 netxen_nic_driver_name, netdev->name);
2189 adapter->ahw.linkup = 0;
2190 if (netif_running(netdev)) {
2191 netif_carrier_off(netdev);
2192 netif_stop_queue(netdev);
2193 }
e424fa9d 2194 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2195 } else if (!adapter->ahw.linkup && linkup) {
2196 printk(KERN_INFO "%s: %s NIC Link is up\n",
2197 netxen_nic_driver_name, netdev->name);
2198 adapter->ahw.linkup = 1;
2199 if (netif_running(netdev)) {
2200 netif_carrier_on(netdev);
2201 netif_wake_queue(netdev);
2202 }
e424fa9d 2203 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2204 }
2205}
2206
3bf26ce3
DP		 2207static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2208{
2209 u32 val, port, linkup;
2210
2211 port = adapter->physical_port;
2212
2213 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2214 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2215 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2216 linkup = (val == XG_LINK_UP_P3);
2217 } else {
f98a9f69 2218 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2219 val = (val >> port*8) & 0xff;
2220 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2221 }
2222
2223 netxen_advert_link_change(adapter, linkup);
2224}
2225
3d396eb1
AK		 2226static void netxen_tx_timeout(struct net_device *netdev)
2227{
e424fa9d 2228 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2229
6a581e93
DP		 2230 if (test_bit(__NX_RESETTING, &adapter->state))
2231 return;
2232
f17443f4 2233 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2234 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2235}
2236
74c520da 2237static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2238{
4790654c 2239 struct netxen_adapter *adapter =
3176ff3e 2240 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2241
b2af9cb0
DP		 2242 if (!netif_running(adapter->netdev))
2243 return;
2244
74c520da 2245 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2246 return;
2247
74c520da
AKS		 2248 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2249 goto request_reset;
2250
16d884bd 2251 rtnl_lock();
74c520da
AKS		 2252 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2253 /* try to scrub interrupt */
2254 netxen_napi_disable(adapter);
ba53e6b4 2255
74c520da
AKS		 2256 netxen_napi_enable(adapter);
2257
2258 netif_wake_queue(adapter->netdev);
2259
a598ae17 2260 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2261 } else {
a598ae17 2262 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2263 if (netxen_nic_reset_context(adapter)) {
2264 rtnl_unlock();
2265 goto request_reset;
74c520da 2266 }
74c520da 2267 }
16d884bd
AKS		 2268 adapter->netdev->trans_start = jiffies;
2269 rtnl_unlock();
2270 return;
74c520da
AKS		 2271
2272request_reset:
2273 adapter->need_fw_reset = 1;
ff8a306d 2274 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2275}
2276
47fd428c 2277static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2278 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2279{
2280 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2281
1bb482f8 2282 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2283 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2284 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2285 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2286 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 2287 stats->tx_dropped = adapter->stats.txdropped;
2288
2289 return stats;
2290}
2291
e4c93c81 2292static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2293{
d8b100c5
DP		 2294 struct nx_host_sds_ring *sds_ring = data;
2295 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2296 u32 status = 0;
2297
195c5f98 2298 status = readl(adapter->isr_int_vec);
d71e1be8 2299
195c5f98 2300 if (!(status & adapter->int_vec_bit))
05aaa02d 2301 return IRQ_NONE;
e01872af 2302
195c5f98 2303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2304 /* check interrupt state machine, to be sure */
195c5f98 2305 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2306 if (!ISR_LEGACY_INT_TRIGGERED(status))
2307 return IRQ_NONE;
2308
092bc571
DP		 2309 } else {
2310 unsigned long our_int = 0;
d71e1be8 2311
195c5f98 2312 our_int = readl(adapter->crb_int_state_reg);
092bc571 2313
d71e1be8 2314 /* not our interrupt */
092bc571 2315 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2316 return IRQ_NONE;
2317
092bc571 2318 /* claim interrupt */
195c5f98 2319 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2320
195c5f98 2321 /* clear interrupt */
d8b100c5 2322 netxen_nic_disable_int(sds_ring);
195c5f98 2323 }
092bc571 2324
195c5f98 2325 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2326 /* read twice to ensure write is flushed */
195c5f98
AKS		 2327 readl(adapter->isr_int_vec);
2328 readl(adapter->isr_int_vec);
092bc571 2329
d8b100c5 2330 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2331
2332 return IRQ_HANDLED;
2333}
2334
e4c93c81 2335static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2336{
d8b100c5
DP		 2337 struct nx_host_sds_ring *sds_ring = data;
2338 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2339
092bc571 2340 /* clear interrupt */
195c5f98 2341 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2342
d8b100c5 2343 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2344 return IRQ_HANDLED;
2345}
2346
b3df68f8
DP		 2347static irqreturn_t netxen_msix_intr(int irq, void *data)
2348{
d8b100c5 2349 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2350
d8b100c5 2351 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2352 return IRQ_HANDLED;
2353}
2354
bea3348e 2355static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2356{
d8b100c5
DP		 2357 struct nx_host_sds_ring *sds_ring =
2358 container_of(napi, struct nx_host_sds_ring, napi);
2359
2360 struct netxen_adapter *adapter = sds_ring->adapter;
2361
05aaa02d 2362 int tx_complete;
bea3348e 2363 int work_done;
3d396eb1 2364
05aaa02d 2365 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2366
d8b100c5 2367 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2368
05aaa02d 2369 if ((work_done < budget) && tx_complete) {
d8b100c5 2370 napi_complete(&sds_ring->napi);
f2251f66 2371 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2372 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2373 }
2374
bea3348e 2375 return work_done;
3d396eb1
AK		 2376}
2377
2378#ifdef CONFIG_NET_POLL_CONTROLLER
2379static void netxen_nic_poll_controller(struct net_device *netdev)
2380{
7b589a35
YL		 2381 int ring;
2382 struct nx_host_sds_ring *sds_ring;
3176ff3e 2383 struct netxen_adapter *adapter = netdev_priv(netdev);
7b589a35
YL		 2384 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2385
3d396eb1 2386 disable_irq(adapter->irq);
7b589a35
YL		 2387 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2388 sds_ring = &recv_ctx->sds_rings[ring];
2389 netxen_intr(adapter->irq, sds_ring);
2390 }
3d396eb1
AK		 2391 enable_irq(adapter->irq);
2392}
2393#endif
3d396eb1 2394
6a581e93
DP		 2395static int
2396nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2397{
2398 int count;
2399 if (netxen_api_lock(adapter))
2400 return -EIO;
2401
2402 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2403
2404 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2405
2406 netxen_api_unlock(adapter);
2407 return count;
2408}
2409
2410static int
2411nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2412{
83f18a55 2413 int count, state;
6a581e93
DP		 2414 if (netxen_api_lock(adapter))
2415 return -EIO;
2416
2417 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2418 WARN_ON(count == 0);
2419
2420 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2421 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2422
83f18a55 2423 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2424 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2425
2426 netxen_api_unlock(adapter);
2427 return count;
2428}
2429
e87ad553
AKS		 2430static int
2431nx_dev_request_aer(struct netxen_adapter *adapter)
2432{
2433 u32 state;
2434 int ret = -EINVAL;
2435
2436 if (netxen_api_lock(adapter))
2437 return ret;
2438
2439 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2440
2441 if (state == NX_DEV_NEED_AER)
2442 ret = 0;
2443 else if (state == NX_DEV_READY) {
2444 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2445 ret = 0;
2446 }
2447
2448 netxen_api_unlock(adapter);
2449 return ret;
2450}
2451
83f18a55 2452int
74c520da
AKS		 2453nx_dev_request_reset(struct netxen_adapter *adapter)
2454{
2455 u32 state;
e87ad553 2456 int ret = -EINVAL;
74c520da
AKS		 2457
2458 if (netxen_api_lock(adapter))
e87ad553 2459 return ret;
74c520da
AKS		 2460
2461 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2462
83f18a55 2463 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2464 ret = 0;
2465 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2466 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2467 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2468 ret = 0;
2469 }
74c520da
AKS		 2470
2471 netxen_api_unlock(adapter);
e87ad553
AKS		 2472
2473 return ret;
74c520da
AKS		 2474}
2475
6a581e93
DP		 2476static int
2477netxen_can_start_firmware(struct netxen_adapter *adapter)
2478{
2479 int count;
2480 int can_start = 0;
2481
83f18a55
M		 2482 if (netxen_api_lock(adapter)) {
2483 nx_incr_dev_ref_cnt(adapter);
2484 return -1;
2485 }
6a581e93
DP		 2486
2487 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2488
2489 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2490 count = 0;
2491
2492 if (count == 0) {
2493 can_start = 1;
2494 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2495 }
2496
2497 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2498
2499 netxen_api_unlock(adapter);
2500
2501 return can_start;
2502}
2503
2504static void
2505netxen_schedule_work(struct netxen_adapter *adapter,
2506 work_func_t func, int delay)
2507{
2508 INIT_DELAYED_WORK(&adapter->fw_work, func);
2509 schedule_delayed_work(&adapter->fw_work, delay);
2510}
2511
2512static void
2513netxen_cancel_fw_work(struct netxen_adapter *adapter)
2514{
2515 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2516 msleep(10);
2517
2518 cancel_delayed_work_sync(&adapter->fw_work);
2519}
2520
2521static void
2522netxen_attach_work(struct work_struct *work)
2523{
2524 struct netxen_adapter *adapter = container_of(work,
2525 struct netxen_adapter, fw_work.work);
2526 struct net_device *netdev = adapter->netdev;
2527 int err = 0;
2528
2529 if (netif_running(netdev)) {
2530 err = netxen_nic_attach(adapter);
2531 if (err)
2532 goto done;
2533
2534 err = netxen_nic_up(adapter, netdev);
2535 if (err) {
2536 netxen_nic_detach(adapter);
2537 goto done;
2538 }
2539
57569d0e 2540 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2541 }
2542
2543 netif_device_attach(netdev);
2544
2545done:
2546 adapter->fw_fail_cnt = 0;
2547 clear_bit(__NX_RESETTING, &adapter->state);
2548 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2549}
2550
2551static void
2552netxen_fwinit_work(struct work_struct *work)
2553{
2554 struct netxen_adapter *adapter = container_of(work,
2555 struct netxen_adapter, fw_work.work);
2556 int dev_state;
83f18a55 2557 int count;
6a581e93 2558 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2559 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2560 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2561 WARN_ON(count == 0);
2562 if (count == 1) {
2563 if (adapter->mdump.md_enabled) {
2564 rtnl_lock();
2565 netxen_dump_fw(adapter);
2566 rtnl_unlock();
2567 }
2568 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2569 if (netxen_api_lock(adapter)) {
2570 clear_bit(__NX_RESETTING, &adapter->state);
2571 NXWR32(adapter, NX_CRB_DEV_STATE,
2572 NX_DEV_FAILED);
2573 return;
2574 }
2575 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2576 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2577 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2578 dev_state = NX_DEV_COLD;
2579 netxen_api_unlock(adapter);
2580 }
2581 }
6a581e93
DP		 2582
2583 switch (dev_state) {
2584 case NX_DEV_COLD:
2585 case NX_DEV_READY:
74c520da
AKS		 2586 if (!netxen_start_firmware(adapter)) {
2587 netxen_schedule_work(adapter, netxen_attach_work, 0);
2588 return;
2589 }
2590 break;
6a581e93 2591
6b50ea15 2592 case NX_DEV_NEED_RESET:
6a581e93 2593 case NX_DEV_INITALIZING:
6a581e93
DP		 2594 netxen_schedule_work(adapter,
2595 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2596 return;
6a581e93
DP		 2597
2598 case NX_DEV_FAILED:
2599 default:
8f9b3f69 2600 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2601 break;
2602 }
2603
83f18a55
M		 2604 if (netxen_api_lock(adapter)) {
2605 clear_bit(__NX_RESETTING, &adapter->state);
2606 return;
2607 }
2608 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2609 netxen_api_unlock(adapter);
2610 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2611 adapter->netdev->name);
2612
6a581e93
DP		 2613 clear_bit(__NX_RESETTING, &adapter->state);
2614}
2615
2616static void
2617netxen_detach_work(struct work_struct *work)
2618{
2619 struct netxen_adapter *adapter = container_of(work,
2620 struct netxen_adapter, fw_work.work);
2621 struct net_device *netdev = adapter->netdev;
83f18a55 2622 int ref_cnt = 0, delay;
6a581e93
DP		 2623 u32 status;
2624
2625 netif_device_detach(netdev);
2626
6f771419 2627 netxen_nic_down(adapter, netdev);
6a581e93 2628
e15eec28 2629 rtnl_lock();
6a581e93 2630 netxen_nic_detach(adapter);
e15eec28 2631 rtnl_unlock();
6a581e93
DP		 2632
2633 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2634
6a581e93 2635 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2636 goto err_ret;
6a581e93
DP		 2637
2638 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2639 goto err_ret;
2640
83f18a55
M		 2641 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2642 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2643
6b50ea15
AKS		 2644 if (ref_cnt == -EIO)
2645 goto err_ret;
2646
6a581e93
DP		 2647 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2648
2649 adapter->fw_wait_cnt = 0;
2650 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2651
2652 return;
2653
2654err_ret:
2655 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2656}
2657
2658static int
2659netxen_check_health(struct netxen_adapter *adapter)
2660{
2661 u32 state, heartbit;
5471aed0 2662 u32 peg_status;
6a581e93
DP		 2663 struct net_device *netdev = adapter->netdev;
2664
e87ad553
AKS		 2665 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2666 if (state == NX_DEV_NEED_AER)
2667 return 0;
2668
6a581e93
DP		 2669 if (netxen_nic_check_temp(adapter))
2670 goto detach;
2671
74c520da 2672 if (adapter->need_fw_reset) {
e87ad553
AKS		 2673 if (nx_dev_request_reset(adapter))
2674 return 0;
74c520da
AKS		 2675 goto detach;
2676 }
2677
e87ad553
AKS		 2678 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2679 * 1. Tx timeout 2. Fw hang
2680 * Send request to destroy context in case of tx timeout only
2681 * and doesn't required in case of Fw hang
2682 */
83f18a55 2683 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2684 adapter->need_fw_reset = 1;
e87ad553
AKS		 2685 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2686 goto detach;
6a808c6c 2687 }
6a581e93
DP		 2688
2689 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2690 return 0;
2691
2692 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2693 if (heartbit != adapter->heartbit) {
2694 adapter->heartbit = heartbit;
2695 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2696 if (adapter->need_fw_reset)
2697 goto detach;
6a581e93
DP		 2698 return 0;
2699 }
2700
2701 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2702 return 0;
2703
e87ad553
AKS		 2704 if (nx_dev_request_reset(adapter))
2705 return 0;
2706
6a581e93
DP		 2707 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2708
5471aed0
SV		 2709 dev_err(&netdev->dev, "firmware hang detected\n");
2710 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2711 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2712 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2713 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2714 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2715 "PEG_NET_4_PC: 0x%x\n",
2716 peg_status,
2717 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2718 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2719 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2720 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2721 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2722 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2723 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2724 dev_err(&adapter->pdev->dev,
2725 "Firmware aborted with error code 0x00006700. "
2726 "Device is being reset.\n");
6a581e93 2727detach:
caa2dd53
NK		 2728 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2729 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2730 netxen_schedule_work(adapter, netxen_detach_work, 0);
2731 return 1;
2732}
2733
2734static void
2735netxen_fw_poll_work(struct work_struct *work)
2736{
2737 struct netxen_adapter *adapter = container_of(work,
2738 struct netxen_adapter, fw_work.work);
2739
2740 if (test_bit(__NX_RESETTING, &adapter->state))
2741 goto reschedule;
2742
2743 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2744 if (!adapter->has_link_events) {
2745
2746 netxen_nic_handle_phy_intr(adapter);
2747
2748 if (adapter->link_changed)
2749 netxen_nic_set_link_parameters(adapter);
2750 }
2751 }
2752
2753 if (netxen_check_health(adapter))
2754 return;
2755
2756reschedule:
2757 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2758}
2759
fa3ce355
NK		 2760static ssize_t
2761netxen_store_bridged_mode(struct device *dev,
2762 struct device_attribute *attr, const char *buf, size_t len)
2763{
2764 struct net_device *net = to_net_dev(dev);
2765 struct netxen_adapter *adapter = netdev_priv(net);
2766 unsigned long new;
2767 int ret = -EINVAL;
2768
2769 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2770 goto err_out;
2771
2772 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2773 goto err_out;
2774
67d6bfa6 2775 if (kstrtoul(buf, 2, &new))
fa3ce355
NK		 2776 goto err_out;
2777
2778 if (!netxen_config_bridged_mode(adapter, !!new))
2779 ret = len;
2780
2781err_out:
2782 return ret;
2783}
2784
2785static ssize_t
2786netxen_show_bridged_mode(struct device *dev,
2787 struct device_attribute *attr, char *buf)
2788{
2789 struct net_device *net = to_net_dev(dev);
2790 struct netxen_adapter *adapter;
2791 int bridged_mode = 0;
2792
2793 adapter = netdev_priv(net);
2794
2795 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2796 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2797
2798 return sprintf(buf, "%d\n", bridged_mode);
2799}
2800
2801static struct device_attribute dev_attr_bridged_mode = {
2802 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2803 .show = netxen_show_bridged_mode,
2804 .store = netxen_store_bridged_mode,
2805};
2806
70f9cf89
DP		 2807static ssize_t
2808netxen_store_diag_mode(struct device *dev,
2809 struct device_attribute *attr, const char *buf, size_t len)
2810{
2811 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2812 unsigned long new;
2813
67d6bfa6 2814 if (kstrtoul(buf, 2, &new))
70f9cf89
DP		 2815 return -EINVAL;
2816
2817 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2818 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2819
2820 return len;
2821}
2822
2823static ssize_t
2824netxen_show_diag_mode(struct device *dev,
2825 struct device_attribute *attr, char *buf)
2826{
2827 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2828
2829 return sprintf(buf, "%d\n",
2830 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2831}
2832
2833static struct device_attribute dev_attr_diag_mode = {
2834 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2835 .show = netxen_show_diag_mode,
2836 .store = netxen_store_diag_mode,
2837};
2838
2839static int
2840netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2841 loff_t offset, size_t size)
2842{
0b9715e6
AKS		 2843 size_t crb_size = 4;
2844
70f9cf89
DP		 2845 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2846 return -EIO;
2847
0b9715e6
AKS		 2848 if (offset < NETXEN_PCI_CRBSPACE) {
2849 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2850 return -EINVAL;
70f9cf89 2851
0b9715e6
AKS		 2852 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2853 NETXEN_PCI_CAMQM_2M_END))
2854 crb_size = 8;
2855 else
2856 return -EINVAL;
2857 }
2858
2859 if ((size != crb_size) || (offset & (crb_size-1)))
2860 return -EINVAL;
70f9cf89
DP		 2861
2862 return 0;
2863}
2864
2865static ssize_t
2c3c8bea
CW		 2866netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2867 struct bin_attribute *attr,
70f9cf89
DP		 2868 char *buf, loff_t offset, size_t size)
2869{
2870 struct device *dev = container_of(kobj, struct device, kobj);
2871 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2872 u32 data;
0b9715e6 2873 u64 qmdata;
70f9cf89
DP		 2874 int ret;
2875
2876 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2877 if (ret != 0)
2878 return ret;
2879
0b9715e6
AKS		 2880 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2881 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2882 NETXEN_PCI_CAMQM_2M_END)) {
2883 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2884 memcpy(buf, &qmdata, size);
2885 } else {
2886 data = NXRD32(adapter, offset);
2887 memcpy(buf, &data, size);
2888 }
2889
70f9cf89
DP		 2890 return size;
2891}
2892
2893static ssize_t
2c3c8bea
CW		 2894netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2895 struct bin_attribute *attr,
70f9cf89
DP		 2896 char *buf, loff_t offset, size_t size)
2897{
2898 struct device *dev = container_of(kobj, struct device, kobj);
2899 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2900 u32 data;
0b9715e6 2901 u64 qmdata;
70f9cf89
DP		 2902 int ret;
2903
2904 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2905 if (ret != 0)
2906 return ret;
2907
0b9715e6
AKS		 2908 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2909 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2910 NETXEN_PCI_CAMQM_2M_END)) {
2911 memcpy(&qmdata, buf, size);
2912 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2913 } else {
2914 memcpy(&data, buf, size);
2915 NXWR32(adapter, offset, data);
2916 }
2917
70f9cf89
DP		 2918 return size;
2919}
2920
2921static int
2922netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2923 loff_t offset, size_t size)
2924{
2925 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2926 return -EIO;
2927
2928 if ((size != 8) || (offset & 0x7))
2929 return -EIO;
2930
2931 return 0;
2932}
2933
2934static ssize_t
2c3c8bea
CW		 2935netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2936 struct bin_attribute *attr,
70f9cf89
DP		 2937 char *buf, loff_t offset, size_t size)
2938{
2939 struct device *dev = container_of(kobj, struct device, kobj);
2940 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2941 u64 data;
2942 int ret;
2943
2944 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2945 if (ret != 0)
2946 return ret;
2947
2948 if (adapter->pci_mem_read(adapter, offset, &data))
2949 return -EIO;
2950
2951 memcpy(buf, &data, size);
2952
2953 return size;
2954}
2955
2c3c8bea 2956static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2957 struct bin_attribute *attr, char *buf,
2958 loff_t offset, size_t size)
2959{
2960 struct device *dev = container_of(kobj, struct device, kobj);
2961 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2962 u64 data;
2963 int ret;
2964
2965 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2966 if (ret != 0)
2967 return ret;
2968
2969 memcpy(&data, buf, size);
2970
2971 if (adapter->pci_mem_write(adapter, offset, data))
2972 return -EIO;
2973
2974 return size;
2975}
2976
2977
2978static struct bin_attribute bin_attr_crb = {
2979 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2980 .size = 0,
2981 .read = netxen_sysfs_read_crb,
2982 .write = netxen_sysfs_write_crb,
2983};
2984
2985static struct bin_attribute bin_attr_mem = {
2986 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2987 .size = 0,
2988 .read = netxen_sysfs_read_mem,
2989 .write = netxen_sysfs_write_mem,
2990};
2991
d612698b
SC		 2992static ssize_t
2993netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2994 struct bin_attribute *attr,
2995 char *buf, loff_t offset, size_t size)
2996{
2997 struct device *dev = container_of(kobj, struct device, kobj);
2998 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2999 struct net_device *netdev = adapter->netdev;
3000 struct netxen_dimm_cfg dimm;
3001 u8 dw, rows, cols, banks, ranks;
3002 u32 val;
3003
3004 if (size != sizeof(struct netxen_dimm_cfg)) {
3005 netdev_err(netdev, "Invalid size\n");
3006 return -1;
3007 }
3008
3009 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3010 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3011
3012 /* Checks if DIMM info is valid. */
3013 if (val & NETXEN_DIMM_VALID_FLAG) {
3014 netdev_err(netdev, "Invalid DIMM flag\n");
3015 dimm.presence = 0xff;
3016 goto out;
3017 }
3018
3019 rows = NETXEN_DIMM_NUMROWS(val);
3020 cols = NETXEN_DIMM_NUMCOLS(val);
3021 ranks = NETXEN_DIMM_NUMRANKS(val);
3022 banks = NETXEN_DIMM_NUMBANKS(val);
3023 dw = NETXEN_DIMM_DATAWIDTH(val);
3024
3025 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3026
3027 /* Checks if DIMM info is present. */
3028 if (!dimm.presence) {
3029 netdev_err(netdev, "DIMM not present\n");
3030 goto out;
3031 }
3032
3033 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3034
3035 switch (dimm.dimm_type) {
3036 case NETXEN_DIMM_TYPE_RDIMM:
3037 case NETXEN_DIMM_TYPE_UDIMM:
3038 case NETXEN_DIMM_TYPE_SO_DIMM:
3039 case NETXEN_DIMM_TYPE_Micro_DIMM:
3040 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3041 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3042 break;
3043 default:
3044 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3045 goto out;
3046 }
3047
3048 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3049 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3050 else
3051 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3052
3053 if (val & NETXEN_DIMM_SIZE) {
3054 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3055 goto out;
3056 }
3057
3058 if (!rows) {
3059 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3060 goto out;
3061 }
3062
3063 if (!cols) {
3064 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3065 goto out;
3066 }
3067
3068 if (!banks) {
3069 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3070 goto out;
3071 }
3072
3073 ranks += 1;
3074
3075 switch (dw) {
3076 case 0x0:
3077 dw = 32;
3078 break;
3079 case 0x1:
3080 dw = 33;
3081 break;
3082 case 0x2:
3083 dw = 36;
3084 break;
3085 case 0x3:
3086 dw = 64;
3087 break;
3088 case 0x4:
3089 dw = 72;
3090 break;
3091 case 0x5:
3092 dw = 80;
3093 break;
3094 case 0x6:
3095 dw = 128;
3096 break;
3097 case 0x7:
3098 dw = 144;
3099 break;
3100 default:
3101 netdev_err(netdev, "Invalid data-width %x\n", dw);
3102 goto out;
3103 }
3104
3105 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3106 /* Size returned in MB. */
3107 dimm.size = (dimm.size) / 0x100000;
3108out:
3109 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3110 return sizeof(struct netxen_dimm_cfg);
3111
3112}
3113
3114static struct bin_attribute bin_attr_dimm = {
3115 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3116 .size = 0,
3117 .read = netxen_sysfs_read_dimm,
3118};
3119
caa2dd53 3120
fa3ce355
NK		 3121static void
3122netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3123{
b8c30812 3124 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3125
3126 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3127 /* bridged_mode control */
3128 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 3129 dev_warn(dev,
fa3ce355
NK		 3130 "failed to create bridged_mode sysfs entry\n");
3131 }
3132 }
3133}
3134
3135static void
3136netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3137{
b8c30812 3138 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3139
3140 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3141 device_remove_file(dev, &dev_attr_bridged_mode);
3142}
3143
70f9cf89
DP		 3144static void
3145netxen_create_diag_entries(struct netxen_adapter *adapter)
3146{
3147 struct pci_dev *pdev = adapter->pdev;
3148 struct device *dev;
3149
3150 dev = &pdev->dev;
3151 if (device_create_file(dev, &dev_attr_diag_mode))
3152 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3153 if (device_create_bin_file(dev, &bin_attr_crb))
3154 dev_info(dev, "failed to create crb sysfs entry\n");
3155 if (device_create_bin_file(dev, &bin_attr_mem))
3156 dev_info(dev, "failed to create mem sysfs entry\n");
d612698b
SC		 3157 if (device_create_bin_file(dev, &bin_attr_dimm))
3158 dev_info(dev, "failed to create dimm sysfs entry\n");
70f9cf89
DP		 3159}
3160
3161
3162static void
3163netxen_remove_diag_entries(struct netxen_adapter *adapter)
3164{
3165 struct pci_dev *pdev = adapter->pdev;
3166 struct device *dev = &pdev->dev;
3167
3168 device_remove_file(dev, &dev_attr_diag_mode);
3169 device_remove_bin_file(dev, &bin_attr_crb);
3170 device_remove_bin_file(dev, &bin_attr_mem);
d612698b 3171 device_remove_bin_file(dev, &bin_attr_dimm);
70f9cf89
DP		 3172}
3173
044824d9
DP		 3174#ifdef CONFIG_INET
3175
6598b169
DP		 3176#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3177
3178static int
3179netxen_destip_supported(struct netxen_adapter *adapter)
3180{
3181 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3182 return 0;
3183
3184 if (adapter->ahw.cut_through)
3185 return 0;
3186
3187 return 1;
3188}
3189
d0725e4d 3190static void
8a7fbfab 3191netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
57569d0e 3192{
8a7fbfab 3193 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3194
8a7fbfab 3195 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3196 if (master) {
3197 if (cur->master) {
3198 netxen_config_ipaddr(adapter, cur->ip_addr,
3199 NX_IP_DOWN);
3200 list_del(&cur->list);
3201 kfree(cur);
3202 }
3203 } else {
3204 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3205 list_del(&cur->list);
3206 kfree(cur);
3207 }
57569d0e 3208 }
57569d0e 3209}
8a7fbfab 3210
3211static bool
3212netxen_list_config_ip(struct netxen_adapter *adapter,
57569d0e
RB		 3213 struct in_ifaddr *ifa, unsigned long event)
3214{
3215 struct net_device *dev;
8a7fbfab 3216 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3217 struct list_head *head;
8a7fbfab 3218 bool ret = false;
57569d0e
RB		 3219
3220 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3221
3222 if (dev == NULL)
8a7fbfab 3223 goto out;
57569d0e
RB		 3224
3225 switch (event) {
3226 case NX_IP_UP:
8a7fbfab 3227 list_for_each(head, &adapter->ip_list) {
3228 cur = list_entry(head, struct nx_ip_list, list);
57569d0e
RB		 3229
3230 if (cur->ip_addr == ifa->ifa_address)
8a7fbfab 3231 goto out;
57569d0e
RB		 3232 }
3233
8a7fbfab 3234 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
b2adaca9 3235 if (cur == NULL)
8a7fbfab 3236 goto out;
3237 if (dev->priv_flags & IFF_802_1Q_VLAN)
3238 dev = vlan_dev_real_dev(dev);
3239 cur->master = !!netif_is_bond_master(dev);
57569d0e 3240 cur->ip_addr = ifa->ifa_address;
8a7fbfab 3241 list_add_tail(&cur->list, &adapter->ip_list);
3242 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3243 ret = true;
57569d0e
RB		 3244 break;
3245 case NX_IP_DOWN:
3246 list_for_each_entry_safe(cur, tmp_cur,
8a7fbfab 3247 &adapter->ip_list, list) {
57569d0e
RB		 3248 if (cur->ip_addr == ifa->ifa_address) {
3249 list_del(&cur->list);
3250 kfree(cur);
8a7fbfab 3251 netxen_config_ipaddr(adapter, ifa->ifa_address,
3252 NX_IP_DOWN);
3253 ret = true;
57569d0e
RB		 3254 break;
3255 }
3256 }
3257 }
8a7fbfab 3258out:
3259 return ret;
57569d0e 3260}
8a7fbfab 3261
57569d0e
RB		 3262static void
3263netxen_config_indev_addr(struct netxen_adapter *adapter,
3264 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3265{
3266 struct in_device *indev;
d0725e4d 3267
3db76755 3268 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3269 return;
3270
3271 indev = in_dev_get(dev);
3272 if (!indev)
3273 return;
3274
3275 for_ifa(indev) {
3276 switch (event) {
3277 case NETDEV_UP:
8a7fbfab 3278 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3279 break;
3280 case NETDEV_DOWN:
8a7fbfab 3281 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3282 break;
3283 default:
3284 break;
3285 }
3286 } endfor_ifa(indev);
3287
3288 in_dev_put(indev);
d0725e4d
AKS		 3289}
3290
57569d0e
RB		 3291static void
3292netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3293
3294{
3295 struct netxen_adapter *adapter = netdev_priv(netdev);
8a7fbfab 3296 struct nx_ip_list *pos, *tmp_pos;
57569d0e
RB		 3297 unsigned long ip_event;
3298
3299 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3300 netxen_config_indev_addr(adapter, netdev, event);
3301
8a7fbfab 3302 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
57569d0e
RB		 3303 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3304 }
3305}
3306
8a7fbfab 3307static inline bool
3308netxen_config_checkdev(struct net_device *dev)
3309{
3310 struct netxen_adapter *adapter;
3311
3312 if (!is_netxen_netdev(dev))
3313 return false;
3314 adapter = netdev_priv(dev);
3315 if (!adapter)
3316 return false;
3317 if (!netxen_destip_supported(adapter))
3318 return false;
3319 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3320 return false;
3321
3322 return true;
3323}
3324
3325/**
3326 * netxen_config_master - configure addresses based on master
3327 * @dev: netxen device
3328 * @event: netdev event
3329 */
3330static void netxen_config_master(struct net_device *dev, unsigned long event)
3331{
3332 struct net_device *master, *slave;
3333 struct netxen_adapter *adapter = netdev_priv(dev);
3334
3335 rcu_read_lock();
3336 master = netdev_master_upper_dev_get_rcu(dev);
3337 /*
3338 * This is the case where the netxen nic is being
3339 * enslaved and is dev_open()ed in bond_enslave()
3340 * Now we should program the bond's (and its vlans')
3341 * addresses in the netxen NIC.
3342 */
3343 if (master && netif_is_bond_master(master) &&
3344 !netif_is_bond_slave(dev)) {
3345 netxen_config_indev_addr(adapter, master, event);
3346 for_each_netdev_rcu(&init_net, slave)
3347 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3348 vlan_dev_real_dev(slave) == master)
3349 netxen_config_indev_addr(adapter, slave, event);
3350 }
3351 rcu_read_unlock();
3352 /*
3353 * This is the case where the netxen nic is being
3354 * released and is dev_close()ed in bond_release()
3355 * just before IFF_BONDING is stripped.
3356 */
3357 if (!master && dev->priv_flags & IFF_BONDING)
3358 netxen_free_ip_list(adapter, true);
3359}
3360
6598b169
DP		 3361static int netxen_netdev_event(struct notifier_block *this,
3362 unsigned long event, void *ptr)
3363{
3364 struct netxen_adapter *adapter;
351638e7 3365 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
57569d0e 3366 struct net_device *orig_dev = dev;
8a7fbfab 3367 struct net_device *slave;
6598b169
DP		 3368
3369recheck:
3370 if (dev == NULL)
3371 goto done;
3372
3373 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3374 dev = vlan_dev_real_dev(dev);
3375 goto recheck;
3376 }
8a7fbfab 3377 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3378 /* If this is a bonding device, look for netxen-based slaves*/
3379 if (netif_is_bond_master(dev)) {
3380 rcu_read_lock();
3381 for_each_netdev_in_bond_rcu(dev, slave) {
3382 if (!netxen_config_checkdev(slave))
3383 continue;
3384 adapter = netdev_priv(slave);
3385 netxen_config_indev_addr(adapter,
3386 orig_dev, event);
3387 }
3388 rcu_read_unlock();
3389 } else {
3390 if (!netxen_config_checkdev(dev))
3391 goto done;
3392 adapter = netdev_priv(dev);
3393 /* Act only if the actual netxen is the target */
3394 if (orig_dev == dev)
3395 netxen_config_master(dev, event);
3396 netxen_config_indev_addr(adapter, orig_dev, event);
3397 }
3398 }
6598b169
DP		 3399done:
3400 return NOTIFY_DONE;
3401}
3402
3403static int
3404netxen_inetaddr_event(struct notifier_block *this,
3405 unsigned long event, void *ptr)
3406{
3407 struct netxen_adapter *adapter;
8a7fbfab 3408 struct net_device *dev, *slave;
6598b169 3409 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8a7fbfab 3410 unsigned long ip_event;
6598b169
DP		 3411
3412 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
8a7fbfab 3413 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
6598b169 3414recheck:
57569d0e 3415 if (dev == NULL)
6598b169
DP		 3416 goto done;
3417
3418 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3419 dev = vlan_dev_real_dev(dev);
3420 goto recheck;
3421 }
8a7fbfab 3422 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3423 /* If this is a bonding device, look for netxen-based slaves*/
3424 if (netif_is_bond_master(dev)) {
3425 rcu_read_lock();
3426 for_each_netdev_in_bond_rcu(dev, slave) {
3427 if (!netxen_config_checkdev(slave))
3428 continue;
3429 adapter = netdev_priv(slave);
3430 netxen_list_config_ip(adapter, ifa, ip_event);
3431 }
3432 rcu_read_unlock();
3433 } else {
3434 if (!netxen_config_checkdev(dev))
3435 goto done;
3436 adapter = netdev_priv(dev);
3437 netxen_list_config_ip(adapter, ifa, ip_event);
3438 }
6598b169 3439 }
6598b169
DP		 3440done:
3441 return NOTIFY_DONE;
3442}
3443
3444static struct notifier_block netxen_netdev_cb = {
3445 .notifier_call = netxen_netdev_event,
3446};
3447
3448static struct notifier_block netxen_inetaddr_cb = {
3449 .notifier_call = netxen_inetaddr_event,
3450};
9feae56c
RD		 3451#else
3452static void
57569d0e
RB		 3453netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3454{ }
3455static void
8a7fbfab 3456netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
9feae56c 3457{ }
044824d9 3458#endif
6598b169 3459
3646f0e5 3460static const struct pci_error_handlers netxen_err_handler = {
e87ad553
AKS		 3461 .error_detected = netxen_io_error_detected,
3462 .slot_reset = netxen_io_slot_reset,
3463 .resume = netxen_io_resume,
3464};
3465
3d396eb1
AK		 3466static struct pci_driver netxen_driver = {
3467 .name = netxen_nic_driver_name,
3468 .id_table = netxen_pci_tbl,
3469 .probe = netxen_nic_probe,
c3f9c88c 3470 .remove = netxen_nic_remove,
01542cd1 3471#ifdef CONFIG_PM
0b72e659 3472 .suspend = netxen_nic_suspend,
22b5794b 3473 .resume = netxen_nic_resume,
01542cd1 3474#endif
e87ad553
AKS		 3475 .shutdown = netxen_nic_shutdown,
3476 .err_handler = &netxen_err_handler
3d396eb1
AK		 3477};
3478
3d396eb1
AK		 3479static int __init netxen_init_module(void)
3480{
ff4fbd43
DP		 3481 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3482
044824d9 3483#ifdef CONFIG_INET
6598b169
DP		 3484 register_netdevice_notifier(&netxen_netdev_cb);
3485 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3486#endif
184231bd 3487 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3488}
3489
3490module_init(netxen_init_module);
3491
3492static void __exit netxen_exit_module(void)
3493{
3d396eb1 3494 pci_unregister_driver(&netxen_driver);
6598b169 3495
044824d9 3496#ifdef CONFIG_INET
6598b169
DP		 3497 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3498 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3499#endif
3d396eb1
AK		 3500}
3501
3502module_exit(netxen_exit_module);
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