projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
net: add skb_[inner_]tcp_all_headers helpers
[linux-2.6-block.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
CommitLineData
d0ae6124 1// SPDX-License-Identifier: GPL-2.0-or-later
3d396eb1 2/*
5d242f1c 3 * Copyright (C) 2003 - 2009 NetXen, Inc.
13af7a6e 4 * Copyright (C) 2009 - QLogic Corporation.
3d396eb1 5 * All rights reserved.
3d396eb1
AK		 6 */
7
5a0e3ad6 8#include <linux/slab.h>
cb8011ad 9#include <linux/vmalloc.h>
e98e3350 10#include <linux/interrupt.h>
3d396eb1
AK		 11#include "netxen_nic_hw.h"
12
13#include "netxen_nic.h"
3d396eb1 14
1494a814 15#include <linux/dma-mapping.h>
391587c3 16#include <linux/if_vlan.h>
c9bdd4b5 17#include <net/ip.h>
00977784 18#include <linux/ipv6.h>
6598b169 19#include <linux/inetdevice.h>
0531d7b8 20#include <linux/sysfs.h>
e87ad553 21#include <linux/aer.h>
1494a814 22
0438a1b2 23MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
3d396eb1
AK		 24MODULE_LICENSE("GPL");
25MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97 26MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 27
ceded32f 28char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 29static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 30 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 31
2956640d
DP		 32static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
33
34/* Default to restricted 1G auto-neg mode */
35static int wol_port_mode = 5;
36
37static int use_msi = 1;
38
39static int use_msi_x = 1;
40
afdafff1
SH		 41static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
42module_param(auto_fw_reset, int, 0644);
43MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 44
c3f9c88c 45static int netxen_nic_probe(struct pci_dev *pdev,
2956640d 46 const struct pci_device_id *ent);
c3f9c88c 47static void netxen_nic_remove(struct pci_dev *pdev);
3d396eb1
AK		 48static int netxen_nic_open(struct net_device *netdev);
49static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 50static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
51 struct net_device *);
0290bd29 52static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue);
74c520da 53static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 54static void netxen_fw_poll_work(struct work_struct *work);
55static void netxen_schedule_work(struct netxen_adapter *adapter,
56 work_func_t func, int delay);
57static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 58static int netxen_nic_poll(struct napi_struct *napi, int budget);
fa3ce355
NK		 59
60static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
61static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 62static void netxen_create_diag_entries(struct netxen_adapter *adapter);
63static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
e87ad553 64static int nx_dev_request_aer(struct netxen_adapter *adapter);
6a581e93
DP		 65static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
66static int netxen_can_start_firmware(struct netxen_adapter *adapter);
67
1494a814 68static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 69static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 70static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 71
8a7fbfab 72static void netxen_free_ip_list(struct netxen_adapter *, bool);
57569d0e 73static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
bc1f4470 74static void netxen_nic_get_stats(struct net_device *dev,
75 struct rtnl_link_stats64 *stats);
7e12bb0a 76static int netxen_nic_set_mac(struct net_device *netdev, void *p);
d0725e4d 77
3d396eb1 78/* PCI Device ID Table */
70081ac5 79#define ENTRY(device) \
040dec3b 80 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 81 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
82
9baa3c34 83static const struct pci_device_id netxen_pci_tbl[] = {
040dec3b
DP		 84 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
85 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
86 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
87 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
88 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
91 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 92 {0,}
93};
94
95MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
96
7830b22c
DP		 97static uint32_t crb_cmd_producer[4] = {
98 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
99 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
100};
101
c9fc891f 102void
3ce06a32 103netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 104 struct nx_host_tx_ring *tx_ring)
3176ff3e 105{
195c5f98 106 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
3176ff3e
MT		 107}
108
7830b22c
DP		 109static uint32_t crb_cmd_consumer[4] = {
110 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
111 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
112};
113
3ce06a32
DP		 114static inline void
115netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 116 struct nx_host_tx_ring *tx_ring)
3176ff3e 117{
195c5f98 118 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 119}
120
2956640d 121static uint32_t msi_tgt_status[8] = {
443be796 122 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 123 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
124 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
125 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 126};
127
2956640d
DP		 128static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
129
d8b100c5 130static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 131{
d8b100c5
DP		 132 struct netxen_adapter *adapter = sds_ring->adapter;
133
195c5f98 134 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 135}
136
d8b100c5 137static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 138{
d8b100c5
DP		 139 struct netxen_adapter *adapter = sds_ring->adapter;
140
195c5f98 141 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 142
092bc571 143 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 144 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 145}
146
71dcddbd
DP		 147static int
148netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
149{
150 int size = sizeof(struct nx_host_sds_ring) * count;
151
152 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
153
807540ba 154 return recv_ctx->sds_rings == NULL;
71dcddbd
DP		 155}
156
d8b100c5 157static void
71dcddbd
DP		 158netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
159{
de701762 160 kfree(recv_ctx->sds_rings);
232e7d68 161 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 162}
163
164static int
d8b100c5
DP		 165netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
166{
167 int ring;
168 struct nx_host_sds_ring *sds_ring;
169 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
170
71dcddbd 171 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 172 return -ENOMEM;
71dcddbd 173
d8b100c5
DP		 174 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
175 sds_ring = &recv_ctx->sds_rings[ring];
176 netif_napi_add(netdev, &sds_ring->napi,
1e4a5282 177 netxen_nic_poll, NAPI_POLL_WEIGHT);
d8b100c5 178 }
71dcddbd
DP		 179
180 return 0;
d8b100c5
DP		 181}
182
232e7d68
DP		 183static void
184netxen_napi_del(struct netxen_adapter *adapter)
185{
186 int ring;
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
189
190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
191 sds_ring = &recv_ctx->sds_rings[ring];
192 netif_napi_del(&sds_ring->napi);
193 }
194
195 netxen_free_sds_rings(&adapter->recv_ctx);
196}
197
d8b100c5
DP		 198static void
199netxen_napi_enable(struct netxen_adapter *adapter)
200{
201 int ring;
202 struct nx_host_sds_ring *sds_ring;
203 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
204
205 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
206 sds_ring = &recv_ctx->sds_rings[ring];
207 napi_enable(&sds_ring->napi);
208 netxen_nic_enable_int(sds_ring);
209 }
210}
211
212static void
213netxen_napi_disable(struct netxen_adapter *adapter)
214{
215 int ring;
216 struct nx_host_sds_ring *sds_ring;
217 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
218
219 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
220 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 221 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 222 napi_synchronize(&sds_ring->napi);
223 napi_disable(&sds_ring->napi);
d8b100c5
DP		 224 }
225}
226
50c643e7 227static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 228{
229 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 230 uint64_t mask, cmask;
231
232 adapter->pci_using_dac = 0;
2956640d 233
6afd142f 234 mask = DMA_BIT_MASK(32);
6afd142f 235 cmask = DMA_BIT_MASK(32);
1f434f63 236
50c643e7 237 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 238#ifndef CONFIG_IA64
6afd142f 239 mask = DMA_BIT_MASK(35);
1f434f63 240#endif
50c643e7
DP		 241 } else {
242 mask = DMA_BIT_MASK(39);
243 cmask = mask;
244 }
245
297af515
CJ		 246 if (dma_set_mask(&pdev->dev, mask) == 0 &&
247 dma_set_coherent_mask(&pdev->dev, cmask) == 0) {
2956640d
DP		 248 adapter->pci_using_dac = 1;
249 return 0;
250 }
2956640d 251
1f434f63
DP		 252 return -EIO;
253}
254
255/* Update addressable range if firmware supports it */
256static int
257nx_update_dma_mask(struct netxen_adapter *adapter)
258{
259 int change, shift, err;
50c643e7 260 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 261 struct pci_dev *pdev = adapter->pdev;
262
263 change = 0;
264
f98a9f69 265 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 266 if (shift > 32)
1f434f63
DP		 267 return 0;
268
269 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
270 change = 1;
271 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
272 change = 1;
273
274 if (change) {
275 old_mask = pdev->dma_mask;
50c643e7
DP		 276 old_cmask = pdev->dev.coherent_dma_mask;
277
f60f7856 278 mask = DMA_BIT_MASK(32+shift);
1f434f63 279
297af515 280 err = dma_set_mask(&pdev->dev, mask);
1f434f63 281 if (err)
50c643e7
DP		 282 goto err_out;
283
284 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
285
297af515 286 err = dma_set_coherent_mask(&pdev->dev, mask);
50c643e7
DP		 287 if (err)
288 goto err_out;
289 }
290 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 291 }
292
2956640d 293 return 0;
50c643e7
DP		 294
295err_out:
297af515
CJ		 296 dma_set_mask(&pdev->dev, old_mask);
297 dma_set_coherent_mask(&pdev->dev, old_cmask);
50c643e7 298 return err;
2956640d
DP		 299}
300
2956640d
DP		 301static int
302netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
303{
27c915a4 304 u32 val, timeout;
2956640d
DP		 305
306 if (first_boot == 0x55555555) {
307 /* This is the first boot after power up */
f98a9f69 308 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 309
310 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
311 return 0;
2956640d
DP		 312
313 /* PCI bus master workaround */
f98a9f69 314 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 315 if (!(first_boot & 0x4)) {
316 first_boot |= 0x4;
f98a9f69 317 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
581e8ae4 318 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 319 }
320
321 /* This is the first boot after power up */
f98a9f69 322 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 323 if (first_boot != 0x80000f) {
324 /* clear the register for future unloads/loads */
f98a9f69 325 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 326 return -EIO;
2956640d
DP		 327 }
328
27c915a4 329 /* Start P2 boot loader */
f98a9f69
DP		 330 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
331 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 332 timeout = 0;
333 do {
334 msleep(1);
f98a9f69 335 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 336
337 if (++timeout > 5000)
338 return -EIO;
339
340 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 341 }
27c915a4 342 return 0;
2956640d
DP		 343}
344
345static void netxen_set_port_mode(struct netxen_adapter *adapter)
346{
347 u32 val, data;
348
1e2d0059 349 val = adapter->ahw.board_type;
2956640d
DP		 350 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
351 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
352 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
353 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 354 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 355 } else if (port_mode == NETXEN_PORT_MODE_XG) {
356 data = NETXEN_PORT_MODE_XG;
f98a9f69 357 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 358 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
359 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 360 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 361 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
362 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 363 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 364 } else {
365 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 366 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 367 }
368
369 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
370 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
371 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
372 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
373 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
374 }
f98a9f69 375 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 376 }
377}
378
e3feb266
RB		 379#define PCI_CAP_ID_GEN 0x10
380
381static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
382{
383 u32 pdevfuncsave;
384 u32 c8c9value = 0;
385 u32 chicken = 0;
386 u32 control = 0;
387 int i, pos;
388 struct pci_dev *pdev;
389
390 pdev = adapter->pdev;
391
392 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
393 /* clear chicken3.25:24 */
394 chicken &= 0xFCFFFFFF;
395 /*
396 * if gen1 and B0, set F1020 - if gen 2, do nothing
397 * if gen2 set to F1000
398 */
399 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
400 if (pos == 0xC0) {
401 pci_read_config_dword(pdev, pos + 0x10, &control);
402 if ((control & 0x000F0000) != 0x00020000) {
403 /* set chicken3.24 if gen1 */
404 chicken |= 0x01000000;
405 }
406 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
407 c8c9value = 0xF1000;
408 } else {
409 /* set chicken3.24 if gen1 */
410 chicken |= 0x01000000;
411 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
412 if (adapter->ahw.revision_id == NX_P3_B0)
413 c8c9value = 0xF1020;
414 else
415 c8c9value = 0;
416 }
417
418 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
419
420 if (!c8c9value)
421 return;
422
423 pdevfuncsave = pdev->devfn;
424 if (pdevfuncsave & 0x07)
425 return;
426
427 for (i = 0; i < 8; i++) {
428 pci_read_config_dword(pdev, pos + 8, &control);
429 pci_read_config_dword(pdev, pos + 8, &control);
430 pci_write_config_dword(pdev, pos + 8, c8c9value);
431 pdev->devfn++;
432 }
433 pdev->devfn = pdevfuncsave;
434}
435
2956640d
DP		 436static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
437{
438 u32 control;
2956640d 439
b83082e9
YW		 440 if (pdev->msix_cap) {
441 pci_read_config_dword(pdev, pdev->msix_cap, &control);
2956640d
DP		 442 if (enable)
443 control |= PCI_MSIX_FLAGS_ENABLE;
444 else
445 control = 0;
b83082e9 446 pci_write_config_dword(pdev, pdev->msix_cap, control);
2956640d
DP		 447 }
448}
449
be339aee 450static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 451{
452 int i;
453
be339aee 454 for (i = 0; i < count; i++)
2956640d
DP		 455 adapter->msix_entries[i].entry = i;
456}
457
9dc28efe
DP		 458static int
459netxen_read_mac_addr(struct netxen_adapter *adapter)
460{
461 int i;
462 unsigned char *p;
a03d2451 463 u64 mac_addr;
9dc28efe
DP		 464 struct net_device *netdev = adapter->netdev;
465 struct pci_dev *pdev = adapter->pdev;
88e102e8 466 u8 addr[ETH_ALEN];
9dc28efe 467
9dc28efe
DP		 468 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
469 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
470 return -EIO;
471 } else {
472 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
473 return -EIO;
474 }
475
476 p = (unsigned char *)&mac_addr;
477 for (i = 0; i < 6; i++)
88e102e8
JK		 478 addr[i] = *(p + 5 - i);
479 eth_hw_addr_set(netdev, addr);
9dc28efe 480
5d09e534 481 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 482
483 /* set station address */
484
aaeb6cdf 485 if (!is_valid_ether_addr(netdev->dev_addr))
e174961c 486 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 487
488 return 0;
489}
490
7e12bb0a 491static int netxen_nic_set_mac(struct net_device *netdev, void *p)
3d0a3cc9
DP		 492{
493 struct netxen_adapter *adapter = netdev_priv(netdev);
494 struct sockaddr *addr = p;
495
496 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 497 return -EADDRNOTAVAIL;
3d0a3cc9
DP		 498
499 if (netif_running(netdev)) {
500 netif_device_detach(netdev);
501 netxen_napi_disable(adapter);
502 }
503
5d09e534 504 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
a05e4c0a 505 eth_hw_addr_set(netdev, addr->sa_data);
3d0a3cc9
DP		 506 adapter->macaddr_set(adapter, addr->sa_data);
507
508 if (netif_running(netdev)) {
509 netif_device_attach(netdev);
510 netxen_napi_enable(adapter);
511 }
512 return 0;
513}
514
1abd266f
SH		 515static void netxen_set_multicast_list(struct net_device *dev)
516{
517 struct netxen_adapter *adapter = netdev_priv(dev);
518
3d0a3cc9 519 adapter->set_multi(dev);
1abd266f
SH		 520}
521
c8f44aff
MM		 522static netdev_features_t netxen_fix_features(struct net_device *dev,
523 netdev_features_t features)
066413da
MM		 524{
525 if (!(features & NETIF_F_RXCSUM)) {
526 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
527
528 features &= ~NETIF_F_LRO;
529 }
530
531 return features;
532}
533
c8f44aff
MM		 534static int netxen_set_features(struct net_device *dev,
535 netdev_features_t features)
066413da
MM		 536{
537 struct netxen_adapter *adapter = netdev_priv(dev);
538 int hw_lro;
539
540 if (!((dev->features ^ features) & NETIF_F_LRO))
541 return 0;
542
543 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
544 : NETXEN_NIC_LRO_DISABLED;
545
546 if (netxen_config_hw_lro(adapter, hw_lro))
547 return -EIO;
548
549 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
550 return -EIO;
551
552 return 0;
553}
554
1abd266f
SH		 555static const struct net_device_ops netxen_netdev_ops = {
556 .ndo_open = netxen_nic_open,
557 .ndo_stop = netxen_nic_close,
558 .ndo_start_xmit = netxen_nic_xmit_frame,
47fd428c 559 .ndo_get_stats64 = netxen_nic_get_stats,
1abd266f 560 .ndo_validate_addr = eth_validate_addr,
afc4b13d 561 .ndo_set_rx_mode = netxen_set_multicast_list,
1abd266f
SH		 562 .ndo_set_mac_address = netxen_nic_set_mac,
563 .ndo_change_mtu = netxen_nic_change_mtu,
564 .ndo_tx_timeout = netxen_tx_timeout,
066413da
MM		 565 .ndo_fix_features = netxen_fix_features,
566 .ndo_set_features = netxen_set_features,
1abd266f
SH		 567};
568
b37eb210
MC		 569static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
570 u32 mode)
571{
572 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
573}
574
575static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
576{
577 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
578}
579
97daee83 580static void
a120e864 581netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
97daee83
DP		 582{
583 struct netxen_legacy_intr_set *legacy_intrp;
a120e864 584 u32 tgt_status_reg, int_state_reg;
97daee83
DP		 585
586 if (adapter->ahw.revision_id >= NX_P3_B0)
587 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
588 else
589 legacy_intrp = &legacy_intr[0];
195c5f98 590
a120e864
MC		 591 tgt_status_reg = legacy_intrp->tgt_status_reg;
592 int_state_reg = ISR_INT_STATE_REG;
593
195c5f98 594 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
a120e864 595 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
195c5f98 596 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
a120e864 597 legacy_intrp->tgt_mask_reg);
195c5f98 598 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
a120e864 599 legacy_intrp->pci_int_reg);
195c5f98
AKS		 600 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
601
602 if (adapter->ahw.revision_id >= NX_P3_B1)
603 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864 604 int_state_reg);
195c5f98
AKS		 605 else
606 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
a120e864
MC		 607 CRB_INT_VECTOR);
608}
97daee83 609
a120e864
MC		 610static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
611 int num_msix)
612{
613 struct pci_dev *pdev = adapter->pdev;
614 u32 value;
615 int err;
97daee83
DP		 616
617 if (adapter->msix_supported) {
be339aee 618 netxen_init_msix_entries(adapter, num_msix);
4a6768d3
AG		 619 err = pci_enable_msix_range(pdev, adapter->msix_entries,
620 num_msix, num_msix);
621 if (err > 0) {
be339aee
DP		 622 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
623 netxen_set_msix_bit(pdev, 1);
97daee83 624
be339aee
DP		 625 if (adapter->rss_supported)
626 adapter->max_sds_rings = num_msix;
97daee83 627
be339aee 628 dev_info(&pdev->dev, "using msi-x interrupts\n");
a120e864 629 return 0;
be339aee 630 }
be339aee 631 /* fall through for msi */
97daee83 632 }
be339aee
DP		 633
634 if (use_msi && !pci_enable_msi(pdev)) {
a120e864 635 value = msi_tgt_status[adapter->ahw.pci_func];
be339aee 636 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
a120e864 637 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
f67f3408 638 adapter->msix_entries[0].vector = pdev->irq;
a120e864
MC		 639 dev_info(&pdev->dev, "using msi interrupts\n");
640 return 0;
be339aee
DP		 641 }
642
b37eb210 643 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
a120e864
MC		 644 return -EIO;
645}
646
b37eb210 647static int netxen_setup_intr(struct netxen_adapter *adapter)
a120e864
MC		 648{
649 struct pci_dev *pdev = adapter->pdev;
650 int num_msix;
651
652 if (adapter->rss_supported)
653 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
654 MSIX_ENTRIES_PER_ADAPTER : 2;
655 else
656 num_msix = 1;
657
658 adapter->max_sds_rings = 1;
659 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
660
661 netxen_initialize_interrupt_registers(adapter);
662 netxen_set_msix_bit(pdev, 0);
663
a2bc221b 664 if (adapter->portnum == 0) {
b37eb210
MC		 665 if (!netxen_setup_msi_interrupts(adapter, num_msix))
666 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
667 else
668 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
669 } else {
670 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
671 netxen_setup_msi_interrupts(adapter, num_msix)) {
672 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
673 return -EIO;
674 }
675 }
a120e864 676
b37eb210
MC		 677 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
678 adapter->msix_entries[0].vector = pdev->irq;
679 dev_info(&pdev->dev, "using legacy interrupts\n");
680 }
681 return 0;
97daee83
DP		 682}
683
684static void
685netxen_teardown_intr(struct netxen_adapter *adapter)
686{
687 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
688 pci_disable_msix(adapter->pdev);
689 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
690 pci_disable_msi(adapter->pdev);
691}
692
693static void
694netxen_cleanup_pci_map(struct netxen_adapter *adapter)
695{
696 if (adapter->ahw.db_base != NULL)
697 iounmap(adapter->ahw.db_base);
698 if (adapter->ahw.pci_base0 != NULL)
699 iounmap(adapter->ahw.pci_base0);
700 if (adapter->ahw.pci_base1 != NULL)
701 iounmap(adapter->ahw.pci_base1);
702 if (adapter->ahw.pci_base2 != NULL)
703 iounmap(adapter->ahw.pci_base2);
704}
705
706static int
707netxen_setup_pci_map(struct netxen_adapter *adapter)
708{
97daee83
DP		 709 void __iomem *db_ptr = NULL;
710
71fb62fb 711 resource_size_t mem_base, db_base;
afbe5cd6 712 unsigned long mem_len, db_len = 0;
97daee83
DP		 713
714 struct pci_dev *pdev = adapter->pdev;
715 int pci_func = adapter->ahw.pci_func;
afbe5cd6 716 struct netxen_hardware_context *ahw = &adapter->ahw;
97daee83
DP		 717
718 int err = 0;
719
720 /*
721 * Set the CRB window to invalid. If any register in window 0 is
722 * accessed it should set the window to 0 and then reset it to 1.
723 */
907fa120 724 adapter->ahw.crb_win = -1;
47abe356 725 adapter->ahw.ocm_win = -1;
97daee83
DP		 726
727 /* remap phys address */
728 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
729 mem_len = pci_resource_len(pdev, 0);
97daee83 730
97daee83
DP		 731 /* 128 Meg of memory */
732 if (mem_len == NETXEN_PCI_128MB_SIZE) {
afbe5cd6
AKS		 733
734 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
735 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
97daee83 736 SECOND_PAGE_GROUP_SIZE);
afbe5cd6 737 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
97daee83 738 THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 739 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
740 ahw->pci_base2 == NULL) {
741 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
742 err = -EIO;
743 goto err_out;
744 }
745
746 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
747
97daee83 748 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
afbe5cd6
AKS		 749
750 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
751 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
97daee83 752 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
afbe5cd6
AKS		 753 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
754 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
755 err = -EIO;
756 goto err_out;
757 }
758
97daee83 759 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83 760
afbe5cd6
AKS		 761 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
762 if (ahw->pci_base0 == NULL) {
97daee83
DP		 763 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
764 return -EIO;
765 }
afbe5cd6 766 ahw->pci_len0 = mem_len;
97daee83
DP		 767 } else {
768 return -EIO;
769 }
770
195c5f98
AKS		 771 netxen_setup_hwops(adapter);
772
97daee83
DP		 773 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
774
6abb4b83
AKS		 775 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
776 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
777 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
778
779 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 780 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
781 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
782 }
783
97daee83
DP		 784 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
785 goto skip_doorbell;
786
787 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
788 db_len = pci_resource_len(pdev, 4);
789
790 if (db_len == 0) {
791 printk(KERN_ERR "%s: doorbell is disabled\n",
792 netxen_nic_driver_name);
793 err = -EIO;
794 goto err_out;
795 }
796
797 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
798 if (!db_ptr) {
799 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
800 netxen_nic_driver_name);
801 err = -EIO;
802 goto err_out;
803 }
804
805skip_doorbell:
806 adapter->ahw.db_base = db_ptr;
807 adapter->ahw.db_len = db_len;
808 return 0;
809
810err_out:
811 netxen_cleanup_pci_map(adapter);
812 return err;
813}
814
2b9e62ee
DP		 815static void
816netxen_check_options(struct netxen_adapter *adapter)
817{
83f18a55 818 u32 fw_major, fw_minor, fw_build, prev_fw_version;
2b9e62ee
DP		 819 char brd_name[NETXEN_MAX_SHORT_NAME];
820 char serial_num[32];
83f18a55 821 int i, offset, val, err;
06d6c108 822 __le32 *ptr32;
2b9e62ee
DP		 823 struct pci_dev *pdev = adapter->pdev;
824
825 adapter->driver_mismatch = 0;
826
06d6c108 827 ptr32 = (__le32 *)&serial_num;
2b9e62ee
DP		 828 offset = NX_FW_SERIAL_NUM_OFFSET;
829 for (i = 0; i < 8; i++) {
8c1f4546
DC		 830 err = netxen_rom_fast_read(adapter, offset, &val);
831 if (err) {
2b9e62ee
DP		 832 dev_err(&pdev->dev, "error reading board info\n");
833 adapter->driver_mismatch = 1;
834 return;
835 }
836 ptr32[i] = cpu_to_le32(val);
837 offset += sizeof(u32);
838 }
839
840 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
841 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
842 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
83f18a55 843 prev_fw_version = adapter->fw_version;
2b9e62ee
DP		 844 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
845
83f18a55 846 /* Get FW Mini Coredump template and store it */
c4cb8d0a 847 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
83f18a55
M		 848 if (adapter->mdump.md_template == NULL ||
849 adapter->fw_version > prev_fw_version) {
850 kfree(adapter->mdump.md_template);
851 adapter->mdump.md_template = NULL;
852 err = netxen_setup_minidump(adapter);
853 if (err)
854 dev_err(&adapter->pdev->dev,
855 "Failed to setup minidump rcode = %d\n", err);
856 }
857 }
858
2b9e62ee 859 if (adapter->portnum == 0) {
b08a92bb
MC		 860 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
861 brd_name))
862 strcpy(serial_num, "Unknown");
2b9e62ee 863
c25c0b9b
DP		 864 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
865 module_name(THIS_MODULE),
2b9e62ee
DP		 866 brd_name, serial_num, adapter->ahw.revision_id);
867 }
868
869 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
870 adapter->driver_mismatch = 1;
871 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
872 fw_major, fw_minor, fw_build);
873 return;
874 }
875
876 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
877 i = NXRD32(adapter, NETXEN_SRE_MISC);
878 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
879 }
880
dc7551cb
MC		 881 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
882 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
883 adapter->ahw.cut_through ? "cut-through" : "legacy");
2b9e62ee
DP		 884
885 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
886 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
887
2b9e62ee
DP		 888 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
889 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
890 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
891 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
892 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
893 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
894 }
895
896 adapter->msix_supported = 0;
897 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
898 adapter->msix_supported = !!use_msi_x;
899 adapter->rss_supported = !!use_msi_x;
083ba279
AKS		 900 } else {
901 u32 flashed_ver = 0;
902 netxen_rom_fast_read(adapter,
903 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
904 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
905
906 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
907 switch (adapter->ahw.board_type) {
908 case NETXEN_BRDTYPE_P2_SB31_10G:
909 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
910 adapter->msix_supported = !!use_msi_x;
911 adapter->rss_supported = !!use_msi_x;
912 break;
913 default:
914 break;
915 }
2b9e62ee
DP		 916 }
917 }
918
919 adapter->num_txd = MAX_CMD_DESCRIPTORS;
920
921 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
922 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
923 adapter->max_rds_rings = 3;
924 } else {
925 adapter->num_lro_rxd = 0;
926 adapter->max_rds_rings = 2;
927 }
928}
929
ba599d4f 930static int
6a581e93 931netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 932{
933 int val, err, first_boot;
934 struct pci_dev *pdev = adapter->pdev;
935
2b9e62ee
DP		 936 /* required for NX2031 dummy dma */
937 err = nx_set_dma_mask(adapter);
938 if (err)
939 return err;
940
83f18a55
M		 941 err = netxen_can_start_firmware(adapter);
942
943 if (err < 0)
944 return err;
945
946 if (!err)
96f2ebd2 947 goto wait_init;
0b72e659 948
f98a9f69 949 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 950
951 err = netxen_check_hw_init(adapter, first_boot);
952 if (err) {
953 dev_err(&pdev->dev, "error in init HW init sequence\n");
954 return err;
955 }
956
6a581e93 957 netxen_request_firmware(adapter);
f7185c71 958
67c38fc6 959 err = netxen_need_fw_reset(adapter);
1dbc84a7 960 if (err < 0)
db4cfd8a 961 goto err_out;
1dbc84a7 962 if (err == 0)
e3feb266 963 goto pcie_strap_init;
67c38fc6 964
ba599d4f 965 if (first_boot != 0x55555555) {
f98a9f69 966 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 967 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 968 msleep(1);
969 }
567c6c4e 970
f98a9f69 971 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 972 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
973 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
974
567c6c4e
DP		 975 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
976 netxen_set_port_mode(adapter);
977
db4cfd8a
DP		 978 err = netxen_load_firmware(adapter);
979 if (err)
980 goto err_out;
ba599d4f 981
6a581e93
DP		 982 netxen_release_firmware(adapter);
983
ba599d4f
DP		 984 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
985
986 /* Initialize multicast addr pool owners */
987 val = 0x7654;
1e2d0059 988 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 989 val |= 0x0f000000;
f98a9f69 990 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 991
992 }
993
83ac51fa 994 err = netxen_init_dummy_dma(adapter);
ba599d4f 995 if (err)
db4cfd8a 996 goto err_out;
ba599d4f
DP		 997
998 /*
999 * Tell the hardware our version number.
1000 */
1001 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1002 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1003 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 1004 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 1005
e3feb266
RB		 1006pcie_strap_init:
1007 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1008 netxen_pcie_strap_init(adapter);
1009
96f2ebd2 1010wait_init:
ba599d4f
DP		 1011 /* Handshake with the card before we register the devices. */
1012 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1013 if (err) {
83ac51fa 1014 netxen_free_dummy_dma(adapter);
db4cfd8a 1015 goto err_out;
ba599d4f
DP		 1016 }
1017
8f9b3f69
AKS		 1018 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1019
68b3cae0
DP		 1020 nx_update_dma_mask(adapter);
1021
6a581e93 1022 netxen_check_options(adapter);
68b3cae0 1023
74c520da
AKS		 1024 adapter->need_fw_reset = 0;
1025
ec5c50cb 1026 /* fall through and release firmware */
db4cfd8a
DP		 1027
1028err_out:
1029 netxen_release_firmware(adapter);
1030 return err;
ba599d4f
DP		 1031}
1032
9f5bc7f1
DP		 1033static int
1034netxen_nic_request_irq(struct netxen_adapter *adapter)
1035{
1036 irq_handler_t handler;
d8b100c5
DP		 1037 struct nx_host_sds_ring *sds_ring;
1038 int err, ring;
1039
ab392d2d 1040 unsigned long flags = 0;
9f5bc7f1 1041 struct net_device *netdev = adapter->netdev;
d8b100c5 1042 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 1043
9f5bc7f1
DP		 1044 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1045 handler = netxen_msix_intr;
1046 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1047 handler = netxen_msi_intr;
1048 else {
1049 flags |= IRQF_SHARED;
1050 handler = netxen_intr;
1051 }
1052 adapter->irq = netdev->irq;
1053
d8b100c5
DP		 1054 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1055 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 1056 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 1057 err = request_irq(sds_ring->irq, handler,
1058 flags, sds_ring->name, sds_ring);
1059 if (err)
1060 return err;
1061 }
1062
1063 return 0;
1064}
1065
1066static void
1067netxen_nic_free_irq(struct netxen_adapter *adapter)
1068{
1069 int ring;
1070 struct nx_host_sds_ring *sds_ring;
1071
1072 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1073
1074 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1075 sds_ring = &recv_ctx->sds_rings[ring];
1076 free_irq(sds_ring->irq, sds_ring);
1077 }
9f5bc7f1
DP		 1078}
1079
ca2ef330
DP		 1080static void
1081netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1082{
1083 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1084 adapter->coal.normal.data.rx_time_us =
1085 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1086 adapter->coal.normal.data.rx_packets =
1087 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1088 adapter->coal.normal.data.tx_time_us =
1089 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1090 adapter->coal.normal.data.tx_packets =
1091 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1092}
1093
6f771419 1094/* with rtnl_lock */
9f5bc7f1 1095static int
6f771419 1096__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 1097{
1098 int err;
1099
db4cfd8a
DP		 1100 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1101 return -EIO;
1102
9f5bc7f1
DP		 1103 err = adapter->init_port(adapter, adapter->physical_port);
1104 if (err) {
1105 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1106 netxen_nic_driver_name, adapter->portnum);
1107 return err;
1108 }
3d0a3cc9 1109 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 1110 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 1111
3d0a3cc9
DP		 1112 adapter->set_multi(netdev);
1113 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 1114
1115 adapter->ahw.linkup = 0;
9f5bc7f1 1116
d8b100c5
DP		 1117 if (adapter->max_sds_rings > 1)
1118 netxen_config_rss(adapter, 1);
9f5bc7f1 1119
ca2ef330
DP		 1120 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1121 netxen_config_intr_coalesce(adapter);
1122
e4baaf71 1123 if (netdev->features & NETIF_F_LRO)
1bb482f8
NK		 1124 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1125
b2af9cb0
DP		 1126 netxen_napi_enable(adapter);
1127
5103c9f7 1128 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 1129 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 1130 else
1131 netxen_nic_set_link_parameters(adapter);
1132
6a581e93 1133 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 1134 return 0;
1135}
1136
6f771419
AKS		 1137/* Usage: During resume and firmware recovery module.*/
1138
1139static inline int
1140netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1141{
1142 int err = 0;
1143
1144 rtnl_lock();
1145 if (netif_running(netdev))
1146 err = __netxen_nic_up(adapter, netdev);
1147 rtnl_unlock();
1148
1149 return err;
1150}
1151
1152/* with rtnl_lock */
9f5bc7f1 1153static void
6f771419 1154__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1155{
db4cfd8a
DP		 1156 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1157 return;
1158
f2251f66
AKS		 1159 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1160 return;
6a581e93 1161
f2251f66 1162 smp_mb();
9f5bc7f1 1163 netif_carrier_off(netdev);
b2af9cb0 1164 netif_tx_disable(netdev);
9f5bc7f1 1165
d478af0d
SC		 1166 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1167 netxen_linkevent_request(adapter, 0);
1168
9f5bc7f1
DP		 1169 if (adapter->stop_port)
1170 adapter->stop_port(adapter);
1171
5cf4d323
DP		 1172 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1173 netxen_p3_free_mac_list(adapter);
1174
22b5794b
AKS		 1175 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1176
be339aee
DP		 1177 netxen_napi_disable(adapter);
1178
9f5bc7f1 1179 netxen_release_tx_buffers(adapter);
9f5bc7f1
DP		 1180}
1181
6f771419
AKS		 1182/* Usage: During suspend and firmware recovery module */
1183
1184static inline void
1185netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1186{
1187 rtnl_lock();
1188 if (netif_running(netdev))
1189 __netxen_nic_down(adapter, netdev);
1190 rtnl_unlock();
1191
1192}
9f5bc7f1
DP		 1193
1194static int
1195netxen_nic_attach(struct netxen_adapter *adapter)
1196{
1197 struct net_device *netdev = adapter->netdev;
1198 struct pci_dev *pdev = adapter->pdev;
becf46a0 1199 int err, ring;
d8b100c5 1200 struct nx_host_rds_ring *rds_ring;
d877f1e3 1201 struct nx_host_tx_ring *tx_ring;
01da0c2b 1202 u32 capab2;
9f5bc7f1 1203
7042cd8f
AKS		 1204 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1205 return 0;
1206
9f5bc7f1 1207 err = netxen_init_firmware(adapter);
232e7d68
DP		 1208 if (err)
1209 return err;
1210
01da0c2b
RB		 1211 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1212 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1213 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1214 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1215 adapter->flags |= NETXEN_FW_MSS_CAP;
1216 }
1217
232e7d68
DP		 1218 err = netxen_napi_add(adapter, netdev);
1219 if (err)
1220 return err;
9f5bc7f1 1221
9f5bc7f1
DP		 1222 err = netxen_alloc_sw_resources(adapter);
1223 if (err) {
1224 printk(KERN_ERR "%s: Error in setting sw resources\n",
1225 netdev->name);
1226 return err;
1227 }
1228
9f5bc7f1
DP		 1229 err = netxen_alloc_hw_resources(adapter);
1230 if (err) {
1231 printk(KERN_ERR "%s: Error in setting hw resources\n",
1232 netdev->name);
1233 goto err_out_free_sw;
1234 }
1235
4f96b988 1236 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1237 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1238 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1239 crb_cmd_producer[adapter->portnum]);
1240 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1241 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1242
cb2107be
DP		 1243 tx_ring->producer = 0;
1244 tx_ring->sw_consumer = 0;
1245
1246 netxen_nic_update_cmd_producer(adapter, tx_ring);
1247 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1248 }
1249
d8b100c5
DP		 1250 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1251 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1252 netxen_post_rx_buffers(adapter, ring, rds_ring);
1253 }
9f5bc7f1
DP		 1254
1255 err = netxen_nic_request_irq(adapter);
1256 if (err) {
1257 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1258 netdev->name);
1259 goto err_out_free_rxbuf;
1260 }
1261
ca2ef330
DP		 1262 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1263 netxen_nic_init_coalesce_defaults(adapter);
1264
fa3ce355
NK		 1265 netxen_create_sysfs_entries(adapter);
1266
9f5bc7f1
DP		 1267 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1268 return 0;
1269
1270err_out_free_rxbuf:
1271 netxen_release_rx_buffers(adapter);
1272 netxen_free_hw_resources(adapter);
1273err_out_free_sw:
1274 netxen_free_sw_resources(adapter);
1275 return err;
1276}
1277
1278static void
1279netxen_nic_detach(struct netxen_adapter *adapter)
1280{
7042cd8f
AKS		 1281 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1282 return;
1283
fa3ce355
NK		 1284 netxen_remove_sysfs_entries(adapter);
1285
9f5bc7f1 1286 netxen_free_hw_resources(adapter);
cf981ffb 1287 netxen_release_rx_buffers(adapter);
be339aee 1288 netxen_nic_free_irq(adapter);
232e7d68 1289 netxen_napi_del(adapter);
9f5bc7f1
DP		 1290 netxen_free_sw_resources(adapter);
1291
1292 adapter->is_up = 0;
1293}
1294
7042cd8f
AKS		 1295int
1296netxen_nic_reset_context(struct netxen_adapter *adapter)
1297{
1298 int err = 0;
1299 struct net_device *netdev = adapter->netdev;
1300
6a581e93
DP		 1301 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1302 return -EBUSY;
1303
7042cd8f
AKS		 1304 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1305
6a581e93
DP		 1306 netif_device_detach(netdev);
1307
7042cd8f 1308 if (netif_running(netdev))
6f771419 1309 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1310
1311 netxen_nic_detach(adapter);
1312
6a581e93
DP		 1313 if (netif_running(netdev)) {
1314 err = netxen_nic_attach(adapter);
1315 if (!err)
6f771419 1316 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1317
6a581e93
DP		 1318 if (err)
1319 goto done;
1320 }
1321
1322 netif_device_attach(netdev);
7042cd8f 1323 }
6a581e93 1324
7042cd8f 1325done:
6a581e93 1326 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1327 return err;
1328}
1329
f17443f4
DP		 1330static int
1331netxen_setup_netdev(struct netxen_adapter *adapter,
1332 struct net_device *netdev)
1333{
1334 int err = 0;
1335 struct pci_dev *pdev = adapter->pdev;
1336
f17443f4
DP		 1337 adapter->mc_enabled = 0;
1338 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1339 adapter->max_mc_count = 38;
1340 else
1341 adapter->max_mc_count = 16;
1342
1343 netdev->netdev_ops = &netxen_netdev_ops;
7a9905e6 1344 netdev->watchdog_timeo = 5*HZ;
f17443f4
DP		 1345
1346 netxen_nic_change_mtu(netdev, netdev->mtu);
1347
7ad24ea4 1348 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
f17443f4 1349
066413da
MM		 1350 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1351 NETIF_F_RXCSUM;
f17443f4 1352
066413da
MM		 1353 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1354 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1355
1356 netdev->vlan_features |= netdev->hw_features;
f17443f4
DP		 1357
1358 if (adapter->pci_using_dac) {
1359 netdev->features |= NETIF_F_HIGHDMA;
1360 netdev->vlan_features |= NETIF_F_HIGHDMA;
1361 }
1362
028afe71 1363 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
f646968f 1364 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
028afe71 1365
1bb482f8 1366 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
066413da
MM		 1367 netdev->hw_features |= NETIF_F_LRO;
1368
1369 netdev->features |= netdev->hw_features;
1bb482f8 1370
f17443f4
DP		 1371 netdev->irq = adapter->msix_entries[0].vector;
1372
74c520da 1373 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1374
1375 if (netxen_read_mac_addr(adapter))
1376 dev_warn(&pdev->dev, "failed to read mac addr\n");
1377
1378 netif_carrier_off(netdev);
f17443f4
DP		 1379
1380 err = register_netdev(netdev);
1381 if (err) {
1382 dev_err(&pdev->dev, "failed to register net device\n");
1383 return err;
1384 }
1385
1386 return 0;
1387}
1388
5e7856b3
SS		 1389#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1390#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1391
1392static void netxen_read_ula_info(struct netxen_adapter *adapter)
1393{
1394 u32 temp;
1395
1396 /* Print ULA info only once for an adapter */
1397 if (adapter->portnum != 0)
1398 return;
1399
1400 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1401 switch (temp) {
1402 case NETXEN_ULA_ADAPTER_KEY:
1403 dev_info(&adapter->pdev->dev, "ULA adapter");
1404 break;
1405 case NETXEN_NON_ULA_ADAPTER_KEY:
1406 dev_info(&adapter->pdev->dev, "non ULA adapter");
1407 break;
1408 default:
1409 break;
1410 }
1411
1412 return;
1413}
1414
dce87b96 1415#ifdef CONFIG_PCIEAER
1416static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1417{
1418 struct pci_dev *pdev = adapter->pdev;
1419 struct pci_dev *root = pdev->bus->self;
1420 u32 aer_pos;
1421
e4d1aa40
NA		 1422 /* root bus? */
1423 if (!root)
1424 return;
1425
dce87b96 1426 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1427 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1428 return;
1429
62f87c0e 1430 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
dce87b96 1431 return;
1432
1433 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1434 if (!aer_pos)
1435 return;
1436
1437 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1438}
1439#endif
1440
c3f9c88c 1441static int
3d396eb1
AK		 1442netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1443{
1444 struct net_device *netdev = NULL;
1445 struct netxen_adapter *adapter = NULL;
2956640d 1446 int i = 0, err;
3176ff3e 1447 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1448 uint8_t revision_id;
5a6f95e6 1449 u32 val;
3d396eb1 1450
688328c7 1451 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
fe3881cf
JP		 1452 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1453 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1454 return -ENODEV;
1455 }
1456
3d396eb1
AK		 1457 if ((err = pci_enable_device(pdev)))
1458 return err;
2956640d 1459
3d396eb1
AK		 1460 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1461 err = -ENODEV;
1462 goto err_out_disable_pdev;
1463 }
1464
1465 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1466 goto err_out_disable_pdev;
1467
e87ad553
AKS		 1468 if (NX_IS_REVISION_P3(pdev->revision))
1469 pci_enable_pcie_error_reporting(pdev);
1470
3d396eb1 1471 pci_set_master(pdev);
3176ff3e
MT		 1472
1473 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1474 if(!netdev) {
f17443f4 1475 err = -ENOMEM;
3176ff3e
MT		 1476 goto err_out_free_res;
1477 }
1478
3176ff3e
MT		 1479 SET_NETDEV_DEV(netdev, &pdev->dev);
1480
4cf1653a 1481 adapter = netdev_priv(netdev);
2956640d
DP		 1482 adapter->netdev = netdev;
1483 adapter->pdev = pdev;
13ba9c77 1484 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1485
1486 revision_id = pdev->revision;
1487 adapter->ahw.revision_id = revision_id;
1488
f03b0ebd
DP		 1489 rwlock_init(&adapter->ahw.crb_lock);
1490 spin_lock_init(&adapter->ahw.mem_lock);
1491
d8b100c5 1492 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1493 INIT_LIST_HEAD(&adapter->mac_list);
8a7fbfab 1494 INIT_LIST_HEAD(&adapter->ip_list);
3ce06a32 1495
97daee83
DP		 1496 err = netxen_setup_pci_map(adapter);
1497 if (err)
6c80b18d 1498 goto err_out_free_netdev;
3d396eb1 1499
2d1a3bbd 1500 /* This will be reset for mezz cards */
3176ff3e 1501 adapter->portnum = pci_func_id;
3176ff3e 1502
f17443f4
DP		 1503 err = netxen_nic_get_board_info(adapter);
1504 if (err) {
1505 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1506 goto err_out_iounmap;
1507 }
6c80b18d 1508
dce87b96 1509#ifdef CONFIG_PCIEAER
1510 netxen_mask_aer_correctable(adapter);
1511#endif
1512
13ba9c77 1513 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1514 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1515 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1516 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1517 if (pci_func_id >= 2)
13ba9c77 1518 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1519 break;
1520 default:
1521 break;
1522 }
13ba9c77 1523
e933d019
AKS		 1524 err = netxen_check_flash_fw_compatibility(adapter);
1525 if (err)
1526 goto err_out_iounmap;
1527
5a6f95e6
RB		 1528 if (adapter->portnum == 0) {
1529 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1530 if (val != 0xffffffff && val != 0) {
683b65f8
RB		 1531 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1532 adapter->need_fw_reset = 1;
1533 }
1534 }
1535
6a581e93 1536 err = netxen_start_firmware(adapter);
0b72e659 1537 if (err)
8f9b3f69 1538 goto err_out_decr_ref;
f17443f4 1539
3d396eb1 1540 /*
6c80b18d 1541 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1542 */
dcd56fdb 1543 adapter->physical_port = adapter->portnum;
4f96b988 1544 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1545 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1546 if (i != 0x55555555)
1547 adapter->physical_port = i;
1548 }
6c80b18d 1549
d894be57
JW		 1550 /* MTU range: 0 - 8000 (P2) or 9600 (P3) */
1551 netdev->min_mtu = 0;
1552 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1553 netdev->max_mtu = P3_MAX_MTU;
1554 else
1555 netdev->max_mtu = P2_MAX_MTU;
1556
6a581e93 1557 netxen_nic_clear_stats(adapter);
2956640d 1558
b37eb210
MC		 1559 err = netxen_setup_intr(adapter);
1560
1561 if (err) {
1562 dev_err(&adapter->pdev->dev,
1563 "Failed to setup interrupts, error = %d\n", err);
1564 goto err_out_disable_msi;
1565 }
2956640d 1566
5e7856b3
SS		 1567 netxen_read_ula_info(adapter);
1568
f17443f4 1569 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1570 if (err)
2956640d 1571 goto err_out_disable_msi;
6c80b18d
MT		 1572
1573 pci_set_drvdata(pdev, adapter);
3d396eb1 1574
6a581e93
DP		 1575 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1576
1e2d0059 1577 switch (adapter->ahw.port_type) {
2956640d
DP		 1578 case NETXEN_NIC_GBE:
1579 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1580 adapter->netdev->name);
1581 break;
1582 case NETXEN_NIC_XGBE:
1583 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1584 adapter->netdev->name);
1585 break;
3d396eb1 1586 }
3d396eb1 1587
70f9cf89
DP		 1588 netxen_create_diag_entries(adapter);
1589
2956640d
DP		 1590 return 0;
1591
1592err_out_disable_msi:
97daee83 1593 netxen_teardown_intr(adapter);
6c80b18d 1594
83ac51fa 1595 netxen_free_dummy_dma(adapter);
3d396eb1 1596
8f9b3f69 1597err_out_decr_ref:
6a581e93
DP		 1598 nx_decr_dev_ref_cnt(adapter);
1599
2956640d 1600err_out_iounmap:
97daee83 1601 netxen_cleanup_pci_map(adapter);
cb8011ad 1602
6c80b18d
MT		 1603err_out_free_netdev:
1604 free_netdev(netdev);
1605
1606err_out_free_res:
49a10c7b
CJ		 1607 if (NX_IS_REVISION_P3(pdev->revision))
1608 pci_disable_pcie_error_reporting(pdev);
3d396eb1 1609 pci_release_regions(pdev);
6c80b18d
MT		 1610
1611err_out_disable_pdev:
3d396eb1
AK		 1612 pci_disable_device(pdev);
1613 return err;
1614}
1615
83f18a55
M		 1616static
1617void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1618{
1619 kfree(adapter->mdump.md_template);
1620 adapter->mdump.md_template = NULL;
1621
1622 if (adapter->mdump.md_capture_buff) {
1623 vfree(adapter->mdump.md_capture_buff);
1624 adapter->mdump.md_capture_buff = NULL;
1625 }
1626}
1627
c3f9c88c 1628static void netxen_nic_remove(struct pci_dev *pdev)
3d396eb1
AK		 1629{
1630 struct netxen_adapter *adapter;
3176ff3e 1631 struct net_device *netdev;
3d396eb1 1632
6c80b18d 1633 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1634 if (adapter == NULL)
1635 return;
1636
6c80b18d
MT		 1637 netdev = adapter->netdev;
1638
6a581e93
DP		 1639 netxen_cancel_fw_work(adapter);
1640
96acb6eb
DP		 1641 unregister_netdev(netdev);
1642
e424fa9d
AKS		 1643 cancel_work_sync(&adapter->tx_timeout_task);
1644
8a7fbfab 1645 netxen_free_ip_list(adapter, false);
7042cd8f 1646 netxen_nic_detach(adapter);
3d396eb1 1647
6a581e93
DP		 1648 nx_decr_dev_ref_cnt(adapter);
1649
439b454e 1650 if (adapter->portnum == 0)
83ac51fa 1651 netxen_free_dummy_dma(adapter);
96acb6eb 1652
6a581e93
DP		 1653 clear_bit(__NX_RESETTING, &adapter->state);
1654
97daee83 1655 netxen_teardown_intr(adapter);
b37eb210 1656 netxen_set_interrupt_mode(adapter, 0);
70f9cf89
DP		 1657 netxen_remove_diag_entries(adapter);
1658
97daee83 1659 netxen_cleanup_pci_map(adapter);
595e3fb8 1660
f7185c71
DP		 1661 netxen_release_firmware(adapter);
1662
83f18a55
M		 1663 if (NX_IS_REVISION_P3(pdev->revision)) {
1664 netxen_cleanup_minidump(adapter);
e87ad553 1665 pci_disable_pcie_error_reporting(pdev);
83f18a55 1666 }
e87ad553 1667
595e3fb8 1668 pci_release_regions(pdev);
3052246c 1669 pci_disable_device(pdev);
595e3fb8 1670
6c80b18d 1671 free_netdev(netdev);
3d396eb1 1672}
e87ad553
AKS		 1673
1674static void netxen_nic_detach_func(struct netxen_adapter *adapter)
0b72e659 1675{
0b72e659
DP		 1676 struct net_device *netdev = adapter->netdev;
1677
1678 netif_device_detach(netdev);
1679
6a581e93
DP		 1680 netxen_cancel_fw_work(adapter);
1681
0b72e659
DP		 1682 if (netif_running(netdev))
1683 netxen_nic_down(adapter, netdev);
1684
e424fa9d
AKS		 1685 cancel_work_sync(&adapter->tx_timeout_task);
1686
7042cd8f 1687 netxen_nic_detach(adapter);
0b72e659 1688
22b5794b
AKS		 1689 if (adapter->portnum == 0)
1690 netxen_free_dummy_dma(adapter);
1691
6a581e93
DP		 1692 nx_decr_dev_ref_cnt(adapter);
1693
1694 clear_bit(__NX_RESETTING, &adapter->state);
22b5794b 1695}
0b72e659 1696
063ad9bc 1697static int netxen_nic_attach_late_func(struct pci_dev *pdev)
0b72e659
DP		 1698{
1699 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1700 struct net_device *netdev = adapter->netdev;
1701 int err;
1702
bc86fcba 1703 pci_set_master(pdev);
bc86fcba 1704
907fa120 1705 adapter->ahw.crb_win = -1;
47abe356 1706 adapter->ahw.ocm_win = -1;
0b72e659 1707
6a581e93 1708 err = netxen_start_firmware(adapter);
0b72e659
DP		 1709 if (err) {
1710 dev_err(&pdev->dev, "failed to start firmware\n");
1711 return err;
1712 }
1713
1714 if (netif_running(netdev)) {
1715 err = netxen_nic_attach(adapter);
1716 if (err)
6a581e93 1717 goto err_out;
0b72e659
DP		 1718
1719 err = netxen_nic_up(adapter, netdev);
1720 if (err)
6a581e93 1721 goto err_out_detach;
0b72e659 1722
57569d0e 1723 netxen_restore_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1724 }
1725
bc86fcba 1726 netif_device_attach(netdev);
6a581e93 1727 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1728 return 0;
6a581e93
DP		 1729
1730err_out_detach:
1731 netxen_nic_detach(adapter);
1732err_out:
1733 nx_decr_dev_ref_cnt(adapter);
1734 return err;
0b72e659 1735}
e87ad553 1736
063ad9bc
VG		 1737static int netxen_nic_attach_func(struct pci_dev *pdev)
1738{
1739 int err;
1740
1741 err = pci_enable_device(pdev);
1742 if (err)
1743 return err;
1744
1745 pci_set_power_state(pdev, PCI_D0);
1746 pci_restore_state(pdev);
1747
1748 return netxen_nic_attach_late_func(pdev);
1749}
1750
e87ad553
AKS		 1751static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1752 pci_channel_state_t state)
1753{
1754 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1755
1756 if (state == pci_channel_io_perm_failure)
1757 return PCI_ERS_RESULT_DISCONNECT;
1758
1759 if (nx_dev_request_aer(adapter))
1760 return PCI_ERS_RESULT_RECOVERED;
1761
1762 netxen_nic_detach_func(adapter);
1763
1764 pci_disable_device(pdev);
1765
1766 return PCI_ERS_RESULT_NEED_RESET;
1767}
1768
1769static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1770{
1771 int err = 0;
1772
1773 err = netxen_nic_attach_func(pdev);
1774
1775 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1776}
1777
e87ad553
AKS		 1778static void netxen_nic_shutdown(struct pci_dev *pdev)
1779{
1780 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1781
1782 netxen_nic_detach_func(adapter);
1783
1784 if (pci_save_state(pdev))
1785 return;
1786
1787 if (netxen_nic_wol_supported(adapter)) {
1788 pci_enable_wake(pdev, PCI_D3cold, 1);
1789 pci_enable_wake(pdev, PCI_D3hot, 1);
1790 }
1791
1792 pci_disable_device(pdev);
1793}
1794
063ad9bc
VG		 1795static int __maybe_unused
1796netxen_nic_suspend(struct device *dev_d)
e87ad553 1797{
063ad9bc 1798 struct netxen_adapter *adapter = dev_get_drvdata(dev_d);
e87ad553
AKS		 1799
1800 netxen_nic_detach_func(adapter);
1801
063ad9bc
VG		 1802 if (netxen_nic_wol_supported(adapter))
1803 device_wakeup_enable(dev_d);
e87ad553
AKS		 1804
1805 return 0;
1806}
1807
063ad9bc
VG		 1808static int __maybe_unused
1809netxen_nic_resume(struct device *dev_d)
e87ad553 1810{
063ad9bc 1811 return netxen_nic_attach_late_func(to_pci_dev(dev_d));
e87ad553 1812}
0b72e659 1813
3d396eb1
AK		 1814static int netxen_nic_open(struct net_device *netdev)
1815{
4cf1653a 1816 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1817 int err = 0;
3d396eb1 1818
dcd56fdb
DP		 1819 if (adapter->driver_mismatch)
1820 return -EIO;
1821
7042cd8f
AKS		 1822 err = netxen_nic_attach(adapter);
1823 if (err)
1824 return err;
2956640d 1825
6f771419 1826 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1827 if (err)
1828 goto err_out;
05aaa02d 1829
dcd56fdb 1830 netif_start_queue(netdev);
3d396eb1
AK		 1831
1832 return 0;
2956640d 1833
9f5bc7f1
DP		 1834err_out:
1835 netxen_nic_detach(adapter);
2956640d 1836 return err;
3d396eb1
AK		 1837}
1838
1839/*
1840 * netxen_nic_close - Disables a network interface entry point
1841 */
1842static int netxen_nic_close(struct net_device *netdev)
1843{
3176ff3e 1844 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1845
6f771419 1846 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1847 return 0;
1848}
1849
1bcfd790
DP		 1850static void
1851netxen_tso_check(struct net_device *netdev,
1852 struct nx_host_tx_ring *tx_ring,
1853 struct cmd_desc_type0 *first_desc,
1854 struct sk_buff *skb)
cd1f8160 1855{
391587c3 1856 u8 opcode = TX_ETHER_PKT;
cdff1036 1857 __be16 protocol = skb->protocol;
028afe71 1858 u16 flags = 0, vid = 0;
1bcfd790 1859 u32 producer;
028afe71 1860 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1861 struct cmd_desc_type0 *hwdesc;
028afe71 1862 struct vlan_ethhdr *vh;
cdff1036 1863
09640e63 1864 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1865
1866 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1867 protocol = vh->h_vlan_encapsulated_proto;
1868 flags = FLAGS_VLAN_TAGGED;
028afe71 1869
df8a39de 1870 } else if (skb_vlan_tag_present(skb)) {
028afe71 1871 flags = FLAGS_VLAN_OOB;
df8a39de 1872 vid = skb_vlan_tag_get(skb);
028afe71
DP		 1873 netxen_set_tx_vlan_tci(first_desc, vid);
1874 vlan_oob = 1;
cdff1036 1875 }
cd1f8160 1876
391587c3
DP		 1877 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1878 skb_shinfo(skb)->gso_size > 0) {
1879
504148fe 1880 hdr_len = skb_tcp_all_headers(skb);
1bcfd790
DP		 1881
1882 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1883 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1884 if (vlan_oob) {
1885 first_desc->total_hdr_length += VLAN_HLEN;
1886 first_desc->tcp_hdr_offset = VLAN_HLEN;
1887 first_desc->ip_hdr_offset = VLAN_HLEN;
1888 /* Only in case of TSO on vlan device */
1889 flags |= FLAGS_VLAN_TAGGED;
1890 }
391587c3 1891
09640e63 1892 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1893 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1894 tso = 1;
cd1f8160
DP		 1895
1896 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1897 u8 l4proto;
1898
09640e63 1899 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1900 l4proto = ip_hdr(skb)->protocol;
1901
1902 if (l4proto == IPPROTO_TCP)
1903 opcode = TX_TCP_PKT;
1904 else if(l4proto == IPPROTO_UDP)
1905 opcode = TX_UDP_PKT;
09640e63 1906 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1907 l4proto = ipv6_hdr(skb)->nexthdr;
1908
1909 if (l4proto == IPPROTO_TCP)
1910 opcode = TX_TCPV6_PKT;
1911 else if(l4proto == IPPROTO_UDP)
1912 opcode = TX_UDPV6_PKT;
1913 }
cd1f8160 1914 }
028afe71
DP		 1915
1916 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1917 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1918 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1919
1920 if (!tso)
1921 return;
1922
1923 /* For LSO, we need to copy the MAC/IP/TCP headers into
1924 * the descriptor ring
1925 */
1926 producer = tx_ring->producer;
1927 copied = 0;
1928 offset = 2;
1929
028afe71
DP		 1930 if (vlan_oob) {
1931 /* Create a TSO vlan header template for firmware */
1932
1933 hwdesc = &tx_ring->desc_head[producer];
1934 tx_ring->cmd_buf_arr[producer].skb = NULL;
1935
1936 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1937 hdr_len + VLAN_HLEN);
1938
1939 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1940 skb_copy_from_linear_data(skb, vh, 12);
1941 vh->h_vlan_proto = htons(ETH_P_8021Q);
1942 vh->h_vlan_TCI = htons(vid);
1943 skb_copy_from_linear_data_offset(skb, 12,
1944 (char *)vh + 16, copy_len - 16);
1945
545eb370 1946 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1947 offset = 0;
1948
1949 producer = get_next_index(producer, tx_ring->num_desc);
1950 }
1951
1bcfd790
DP		 1952 while (copied < hdr_len) {
1953
1954 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1955 (hdr_len - copied));
1956
1957 hwdesc = &tx_ring->desc_head[producer];
1958 tx_ring->cmd_buf_arr[producer].skb = NULL;
1959
1960 skb_copy_from_linear_data_offset(skb, copied,
1961 (char *)hwdesc + offset, copy_len);
1962
1963 copied += copy_len;
1964 offset = 0;
1965
1966 producer = get_next_index(producer, tx_ring->num_desc);
1967 }
1968
1969 tx_ring->producer = producer;
1970 barrier();
cd1f8160
DP		 1971}
1972
ce644ed4
DP		 1973static int
1974netxen_map_tx_skb(struct pci_dev *pdev,
1975 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1976{
ce644ed4 1977 struct netxen_skb_frag *nf;
d7840976 1978 skb_frag_t *frag;
ce644ed4
DP		 1979 int i, nr_frags;
1980 dma_addr_t map;
1981
1982 nr_frags = skb_shinfo(skb)->nr_frags;
1983 nf = &pbuf->frag_array[0];
1984
297af515
CJ		 1985 map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb),
1986 DMA_TO_DEVICE);
1987 if (dma_mapping_error(&pdev->dev, map))
ce644ed4 1988 goto out_err;
6f703406 1989
ce644ed4
DP		 1990 nf->dma = map;
1991 nf->length = skb_headlen(skb);
1992
1993 for (i = 0; i < nr_frags; i++) {
1994 frag = &skb_shinfo(skb)->frags[i];
1995 nf = &pbuf->frag_array[i+1];
1996
9e903e08 1997 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
5d6bcdfe
IC		 1998 DMA_TO_DEVICE);
1999 if (dma_mapping_error(&pdev->dev, map))
ce644ed4
DP		 2000 goto unwind;
2001
2002 nf->dma = map;
9e903e08 2003 nf->length = skb_frag_size(frag);
ce644ed4
DP		 2004 }
2005
2006 return 0;
6f703406 2007
ce644ed4 2008unwind:
cf503e8f
DP		 2009 while (--i >= 0) {
2010 nf = &pbuf->frag_array[i+1];
297af515 2011 dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE);
a05948f2 2012 nf->dma = 0ULL;
6f703406 2013 }
ce644ed4
DP		 2014
2015 nf = &pbuf->frag_array[0];
297af515 2016 dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE);
a05948f2 2017 nf->dma = 0ULL;
ce644ed4
DP		 2018
2019out_err:
2020 return -ENOMEM;
6f703406
DP		 2021}
2022
d32cc3d2
DP		 2023static inline void
2024netxen_clear_cmddesc(u64 *desc)
2025{
1bcfd790
DP		 2026 desc[0] = 0ULL;
2027 desc[2] = 0ULL;
d32cc3d2
DP		 2028}
2029
61357325 2030static netdev_tx_t
d32cc3d2 2031netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 2032{
3176ff3e 2033 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 2034 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 2035 struct netxen_cmd_buffer *pbuf;
3d396eb1 2036 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 2037 struct cmd_desc_type0 *hwdesc, *first_desc;
2038 struct pci_dev *pdev;
391587c3 2039 int i, k;
c968bdf6 2040 int delta = 0;
d7840976 2041 skb_frag_t *frag;
3d396eb1 2042
cb2107be 2043 u32 producer;
8e15268e 2044 int frag_count;
d877f1e3 2045 u32 num_txd = tx_ring->num_desc;
3d396eb1 2046
3d396eb1
AK		 2047 frag_count = skb_shinfo(skb)->nr_frags + 1;
2048
c968bdf6 2049 /* 14 frags supported for normal packet and
2050 * 32 frags supported for TSO packet
2051 */
2052 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2053
2054 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2055 frag = &skb_shinfo(skb)->frags[i];
9e903e08 2056 delta += skb_frag_size(frag);
c968bdf6 2057 }
2058
2059 if (!__pskb_pull_tail(skb, delta))
2060 goto drop_packet;
2061
2062 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2063 }
53a01e00 2064
7a9905e6 2065 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
ba53e6b4 2066 netif_stop_queue(netdev);
7a9905e6
RB		 2067 smp_mb();
2068 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2069 netif_start_queue(netdev);
2070 else
2071 return NETDEV_TX_BUSY;
53a01e00 2072 }
3d396eb1 2073
cb2107be 2074 producer = tx_ring->producer;
ce644ed4 2075 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 2076
1bcfd790 2077 pdev = adapter->pdev;
391587c3 2078
ce644ed4 2079 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 2080 goto drop_packet;
391587c3 2081
3d396eb1 2082 pbuf->skb = skb;
3d396eb1 2083 pbuf->frag_count = frag_count;
6f703406 2084
1bcfd790
DP		 2085 first_desc = hwdesc = &tx_ring->desc_head[producer];
2086 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 2087
ce644ed4
DP		 2088 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2089 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 2090
ce644ed4 2091 for (i = 0; i < frag_count; i++) {
3d396eb1 2092
ce644ed4
DP		 2093 k = i % 4;
2094
2095 if ((k == 0) && (i > 0)) {
2096 /* move to next desc.*/
ba53e6b4 2097 producer = get_next_index(producer, num_txd);
d877f1e3 2098 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 2099 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 2100 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 2101 }
3d396eb1 2102
ce644ed4 2103 buffrag = &pbuf->frag_array[i];
3d396eb1 2104
ce644ed4 2105 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 2106 switch (k) {
2107 case 0:
ce644ed4 2108 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2109 break;
2110 case 1:
ce644ed4 2111 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2112 break;
2113 case 2:
ce644ed4 2114 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2115 break;
2116 case 3:
ce644ed4 2117 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 2118 break;
2119 }
3d396eb1 2120 }
ce644ed4 2121
1bcfd790 2122 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 2123
1bcfd790 2124 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 2125
1bcfd790 2126 adapter->stats.txbytes += skb->len;
ba53e6b4 2127 adapter->stats.xmitcalled++;
3d396eb1 2128
c82b9d7f
ED		 2129 netxen_nic_update_cmd_producer(adapter, tx_ring);
2130
3d396eb1 2131 return NETDEV_TX_OK;
6f703406
DP		 2132
2133drop_packet:
2134 adapter->stats.txdropped++;
2135 dev_kfree_skb_any(skb);
2136 return NETDEV_TX_OK;
3d396eb1
AK		 2137}
2138
a97342f9
DP		 2139static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2140{
2141 struct net_device *netdev = adapter->netdev;
2142 uint32_t temp, temp_state, temp_val;
2143 int rv = 0;
2144
f98a9f69 2145 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 2146
2147 temp_state = nx_get_temp_state(temp);
2148 temp_val = nx_get_temp_val(temp);
2149
2150 if (temp_state == NX_TEMP_PANIC) {
2151 printk(KERN_ALERT
2152 "%s: Device temperature %d degrees C exceeds"
2153 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 2154 netdev->name, temp_val);
a97342f9
DP		 2155 rv = 1;
2156 } else if (temp_state == NX_TEMP_WARN) {
2157 if (adapter->temp == NX_TEMP_NORMAL) {
2158 printk(KERN_ALERT
2159 "%s: Device temperature %d degrees C "
2160 "exceeds operating range."
2161 " Immediate action needed.\n",
e4135c2d 2162 netdev->name, temp_val);
a97342f9
DP		 2163 }
2164 } else {
2165 if (adapter->temp == NX_TEMP_WARN) {
2166 printk(KERN_INFO
2167 "%s: Device temperature is now %d degrees C"
e4135c2d 2168 " in normal range.\n", netdev->name,
a97342f9
DP		 2169 temp_val);
2170 }
2171 }
2172 adapter->temp = temp_state;
2173 return rv;
2174}
2175
3bf26ce3 2176void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 2177{
2178 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 2179
2180 if (adapter->ahw.linkup && !linkup) {
2181 printk(KERN_INFO "%s: %s NIC Link is down\n",
2182 netxen_nic_driver_name, netdev->name);
2183 adapter->ahw.linkup = 0;
2184 if (netif_running(netdev)) {
2185 netif_carrier_off(netdev);
2186 netif_stop_queue(netdev);
2187 }
e424fa9d 2188 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2189 } else if (!adapter->ahw.linkup && linkup) {
2190 printk(KERN_INFO "%s: %s NIC Link is up\n",
2191 netxen_nic_driver_name, netdev->name);
2192 adapter->ahw.linkup = 1;
2193 if (netif_running(netdev)) {
2194 netif_carrier_on(netdev);
2195 netif_wake_queue(netdev);
2196 }
e424fa9d 2197 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 2198 }
2199}
2200
3bf26ce3
DP		 2201static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2202{
2203 u32 val, port, linkup;
2204
2205 port = adapter->physical_port;
2206
2207 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 2208 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 2209 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2210 linkup = (val == XG_LINK_UP_P3);
2211 } else {
f98a9f69 2212 val = NXRD32(adapter, CRB_XG_STATE);
a4b751d8
SC		 2213 val = (val >> port*8) & 0xff;
2214 linkup = (val == XG_LINK_UP);
3bf26ce3
DP		 2215 }
2216
2217 netxen_advert_link_change(adapter, linkup);
2218}
2219
0290bd29 2220static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue)
3d396eb1 2221{
e424fa9d 2222 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 2223
6a581e93
DP		 2224 if (test_bit(__NX_RESETTING, &adapter->state))
2225 return;
2226
f17443f4 2227 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 2228 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 2229}
2230
74c520da 2231static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 2232{
4790654c 2233 struct netxen_adapter *adapter =
3176ff3e 2234 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 2235
b2af9cb0
DP		 2236 if (!netif_running(adapter->netdev))
2237 return;
2238
74c520da 2239 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2240 return;
2241
74c520da
AKS		 2242 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2243 goto request_reset;
2244
16d884bd 2245 rtnl_lock();
74c520da
AKS		 2246 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2247 /* try to scrub interrupt */
2248 netxen_napi_disable(adapter);
ba53e6b4 2249
74c520da
AKS		 2250 netxen_napi_enable(adapter);
2251
2252 netif_wake_queue(adapter->netdev);
2253
a598ae17 2254 clear_bit(__NX_RESETTING, &adapter->state);
74c520da 2255 } else {
a598ae17 2256 clear_bit(__NX_RESETTING, &adapter->state);
16d884bd
AKS		 2257 if (netxen_nic_reset_context(adapter)) {
2258 rtnl_unlock();
2259 goto request_reset;
74c520da 2260 }
74c520da 2261 }
860e9538 2262 netif_trans_update(adapter->netdev);
16d884bd
AKS		 2263 rtnl_unlock();
2264 return;
74c520da
AKS		 2265
2266request_reset:
2267 adapter->need_fw_reset = 1;
ff8a306d 2268 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 2269}
2270
bc1f4470 2271static void netxen_nic_get_stats(struct net_device *netdev,
2272 struct rtnl_link_stats64 *stats)
a97342f9
DP		 2273{
2274 struct netxen_adapter *adapter = netdev_priv(netdev);
a97342f9 2275
1bb482f8 2276 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 2277 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 2278 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 2279 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 2280 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9 2281 stats->tx_dropped = adapter->stats.txdropped;
a97342f9
DP		 2282}
2283
e4c93c81 2284static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 2285{
d8b100c5
DP		 2286 struct nx_host_sds_ring *sds_ring = data;
2287 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 2288 u32 status = 0;
2289
195c5f98 2290 status = readl(adapter->isr_int_vec);
d71e1be8 2291
195c5f98 2292 if (!(status & adapter->int_vec_bit))
05aaa02d 2293 return IRQ_NONE;
e01872af 2294
195c5f98 2295 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 2296 /* check interrupt state machine, to be sure */
195c5f98 2297 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 2298 if (!ISR_LEGACY_INT_TRIGGERED(status))
2299 return IRQ_NONE;
2300
092bc571
DP		 2301 } else {
2302 unsigned long our_int = 0;
d71e1be8 2303
195c5f98 2304 our_int = readl(adapter->crb_int_state_reg);
092bc571 2305
d71e1be8 2306 /* not our interrupt */
092bc571 2307 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2308 return IRQ_NONE;
2309
092bc571 2310 /* claim interrupt */
195c5f98 2311 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2312
195c5f98 2313 /* clear interrupt */
d8b100c5 2314 netxen_nic_disable_int(sds_ring);
195c5f98 2315 }
092bc571 2316
195c5f98 2317 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2318 /* read twice to ensure write is flushed */
195c5f98
AKS		 2319 readl(adapter->isr_int_vec);
2320 readl(adapter->isr_int_vec);
092bc571 2321
d8b100c5 2322 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2323
2324 return IRQ_HANDLED;
2325}
2326
e4c93c81 2327static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2328{
d8b100c5
DP		 2329 struct nx_host_sds_ring *sds_ring = data;
2330 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2331
092bc571 2332 /* clear interrupt */
195c5f98 2333 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2334
d8b100c5 2335 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2336 return IRQ_HANDLED;
2337}
2338
b3df68f8
DP		 2339static irqreturn_t netxen_msix_intr(int irq, void *data)
2340{
d8b100c5 2341 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2342
d8b100c5 2343 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2344 return IRQ_HANDLED;
2345}
2346
bea3348e 2347static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2348{
d8b100c5
DP		 2349 struct nx_host_sds_ring *sds_ring =
2350 container_of(napi, struct nx_host_sds_ring, napi);
2351
2352 struct netxen_adapter *adapter = sds_ring->adapter;
2353
05aaa02d 2354 int tx_complete;
bea3348e 2355 int work_done;
3d396eb1 2356
05aaa02d 2357 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2358
d8b100c5 2359 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2360
6088beef
ED		 2361 if (!tx_complete)
2362 work_done = budget;
2363
2364 if (work_done < budget) {
6ad20165 2365 napi_complete_done(&sds_ring->napi, work_done);
f2251f66 2366 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2367 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2368 }
2369
bea3348e 2370 return work_done;
3d396eb1
AK		 2371}
2372
6a581e93
DP		 2373static int
2374nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2375{
2376 int count;
2377 if (netxen_api_lock(adapter))
2378 return -EIO;
2379
2380 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2381
2382 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2383
2384 netxen_api_unlock(adapter);
2385 return count;
2386}
2387
2388static int
2389nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2390{
83f18a55 2391 int count, state;
6a581e93
DP		 2392 if (netxen_api_lock(adapter))
2393 return -EIO;
2394
2395 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2396 WARN_ON(count == 0);
2397
2398 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
83f18a55 2399 state = NXRD32(adapter, NX_CRB_DEV_STATE);
6a581e93 2400
83f18a55 2401 if (count == 0 && state != NX_DEV_FAILED)
6a581e93
DP		 2402 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2403
2404 netxen_api_unlock(adapter);
2405 return count;
2406}
2407
e87ad553
AKS		 2408static int
2409nx_dev_request_aer(struct netxen_adapter *adapter)
2410{
2411 u32 state;
2412 int ret = -EINVAL;
2413
2414 if (netxen_api_lock(adapter))
2415 return ret;
2416
2417 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2418
2419 if (state == NX_DEV_NEED_AER)
2420 ret = 0;
2421 else if (state == NX_DEV_READY) {
2422 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2423 ret = 0;
2424 }
2425
2426 netxen_api_unlock(adapter);
2427 return ret;
2428}
2429
83f18a55 2430int
74c520da
AKS		 2431nx_dev_request_reset(struct netxen_adapter *adapter)
2432{
2433 u32 state;
e87ad553 2434 int ret = -EINVAL;
74c520da
AKS		 2435
2436 if (netxen_api_lock(adapter))
e87ad553 2437 return ret;
74c520da
AKS		 2438
2439 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2440
83f18a55 2441 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
e87ad553
AKS		 2442 ret = 0;
2443 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
74c520da 2444 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
83f18a55 2445 adapter->flags |= NETXEN_FW_RESET_OWNER;
e87ad553
AKS		 2446 ret = 0;
2447 }
74c520da
AKS		 2448
2449 netxen_api_unlock(adapter);
e87ad553
AKS		 2450
2451 return ret;
74c520da
AKS		 2452}
2453
6a581e93
DP		 2454static int
2455netxen_can_start_firmware(struct netxen_adapter *adapter)
2456{
2457 int count;
2458 int can_start = 0;
2459
83f18a55
M		 2460 if (netxen_api_lock(adapter)) {
2461 nx_incr_dev_ref_cnt(adapter);
2462 return -1;
2463 }
6a581e93
DP		 2464
2465 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2466
2467 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2468 count = 0;
2469
2470 if (count == 0) {
2471 can_start = 1;
2472 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2473 }
2474
2475 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2476
2477 netxen_api_unlock(adapter);
2478
2479 return can_start;
2480}
2481
2482static void
2483netxen_schedule_work(struct netxen_adapter *adapter,
2484 work_func_t func, int delay)
2485{
2486 INIT_DELAYED_WORK(&adapter->fw_work, func);
2487 schedule_delayed_work(&adapter->fw_work, delay);
2488}
2489
2490static void
2491netxen_cancel_fw_work(struct netxen_adapter *adapter)
2492{
2493 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2494 msleep(10);
2495
2496 cancel_delayed_work_sync(&adapter->fw_work);
2497}
2498
2499static void
2500netxen_attach_work(struct work_struct *work)
2501{
2502 struct netxen_adapter *adapter = container_of(work,
2503 struct netxen_adapter, fw_work.work);
2504 struct net_device *netdev = adapter->netdev;
2505 int err = 0;
2506
2507 if (netif_running(netdev)) {
2508 err = netxen_nic_attach(adapter);
2509 if (err)
2510 goto done;
2511
2512 err = netxen_nic_up(adapter, netdev);
2513 if (err) {
2514 netxen_nic_detach(adapter);
2515 goto done;
2516 }
2517
57569d0e 2518 netxen_restore_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2519 }
2520
2521 netif_device_attach(netdev);
2522
2523done:
2524 adapter->fw_fail_cnt = 0;
2525 clear_bit(__NX_RESETTING, &adapter->state);
2526 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2527}
2528
2529static void
2530netxen_fwinit_work(struct work_struct *work)
2531{
2532 struct netxen_adapter *adapter = container_of(work,
2533 struct netxen_adapter, fw_work.work);
2534 int dev_state;
83f18a55 2535 int count;
6a581e93 2536 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
83f18a55
M		 2537 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2538 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2539 WARN_ON(count == 0);
2540 if (count == 1) {
2541 if (adapter->mdump.md_enabled) {
2542 rtnl_lock();
2543 netxen_dump_fw(adapter);
2544 rtnl_unlock();
2545 }
2546 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2547 if (netxen_api_lock(adapter)) {
2548 clear_bit(__NX_RESETTING, &adapter->state);
2549 NXWR32(adapter, NX_CRB_DEV_STATE,
2550 NX_DEV_FAILED);
2551 return;
2552 }
2553 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2554 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2555 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2556 dev_state = NX_DEV_COLD;
2557 netxen_api_unlock(adapter);
2558 }
2559 }
6a581e93
DP		 2560
2561 switch (dev_state) {
2562 case NX_DEV_COLD:
2563 case NX_DEV_READY:
74c520da
AKS		 2564 if (!netxen_start_firmware(adapter)) {
2565 netxen_schedule_work(adapter, netxen_attach_work, 0);
2566 return;
2567 }
2568 break;
6a581e93 2569
6b50ea15 2570 case NX_DEV_NEED_RESET:
6a581e93 2571 case NX_DEV_INITALIZING:
6a581e93
DP		 2572 netxen_schedule_work(adapter,
2573 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2574 return;
6a581e93
DP		 2575
2576 case NX_DEV_FAILED:
2577 default:
8f9b3f69 2578 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2579 break;
2580 }
2581
83f18a55
M		 2582 if (netxen_api_lock(adapter)) {
2583 clear_bit(__NX_RESETTING, &adapter->state);
2584 return;
2585 }
2586 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2587 netxen_api_unlock(adapter);
2588 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2589 adapter->netdev->name);
2590
6a581e93
DP		 2591 clear_bit(__NX_RESETTING, &adapter->state);
2592}
2593
2594static void
2595netxen_detach_work(struct work_struct *work)
2596{
2597 struct netxen_adapter *adapter = container_of(work,
2598 struct netxen_adapter, fw_work.work);
2599 struct net_device *netdev = adapter->netdev;
83f18a55 2600 int ref_cnt = 0, delay;
6a581e93
DP		 2601 u32 status;
2602
2603 netif_device_detach(netdev);
2604
6f771419 2605 netxen_nic_down(adapter, netdev);
6a581e93 2606
e15eec28 2607 rtnl_lock();
6a581e93 2608 netxen_nic_detach(adapter);
e15eec28 2609 rtnl_unlock();
6a581e93
DP		 2610
2611 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2612
6a581e93 2613 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2614 goto err_ret;
6a581e93
DP		 2615
2616 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2617 goto err_ret;
2618
83f18a55
M		 2619 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2620 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93 2621
6b50ea15
AKS		 2622 if (ref_cnt == -EIO)
2623 goto err_ret;
2624
6a581e93
DP		 2625 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2626
2627 adapter->fw_wait_cnt = 0;
2628 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2629
2630 return;
2631
2632err_ret:
2633 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2634}
2635
2636static int
2637netxen_check_health(struct netxen_adapter *adapter)
2638{
2639 u32 state, heartbit;
5471aed0 2640 u32 peg_status;
6a581e93
DP		 2641 struct net_device *netdev = adapter->netdev;
2642
e87ad553
AKS		 2643 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2644 if (state == NX_DEV_NEED_AER)
2645 return 0;
2646
6a581e93
DP		 2647 if (netxen_nic_check_temp(adapter))
2648 goto detach;
2649
74c520da 2650 if (adapter->need_fw_reset) {
e87ad553
AKS		 2651 if (nx_dev_request_reset(adapter))
2652 return 0;
74c520da
AKS		 2653 goto detach;
2654 }
2655
e87ad553
AKS		 2656 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2657 * 1. Tx timeout 2. Fw hang
2658 * Send request to destroy context in case of tx timeout only
2659 * and doesn't required in case of Fw hang
2660 */
83f18a55 2661 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
6a808c6c 2662 adapter->need_fw_reset = 1;
e87ad553
AKS		 2663 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2664 goto detach;
6a808c6c 2665 }
6a581e93
DP		 2666
2667 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2668 return 0;
2669
2670 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2671 if (heartbit != adapter->heartbit) {
2672 adapter->heartbit = heartbit;
2673 adapter->fw_fail_cnt = 0;
e87ad553
AKS		 2674 if (adapter->need_fw_reset)
2675 goto detach;
6a581e93
DP		 2676 return 0;
2677 }
2678
2679 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2680 return 0;
2681
e87ad553
AKS		 2682 if (nx_dev_request_reset(adapter))
2683 return 0;
2684
6a581e93
DP		 2685 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2686
5471aed0
SV		 2687 dev_err(&netdev->dev, "firmware hang detected\n");
2688 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2689 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2690 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2691 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2692 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2693 "PEG_NET_4_PC: 0x%x\n",
2694 peg_status,
2695 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2696 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2697 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2698 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2699 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2700 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2701 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2702 dev_err(&adapter->pdev->dev,
2703 "Firmware aborted with error code 0x00006700. "
2704 "Device is being reset.\n");
6a581e93 2705detach:
caa2dd53
NK		 2706 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2707 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2708 netxen_schedule_work(adapter, netxen_detach_work, 0);
2709 return 1;
2710}
2711
2712static void
2713netxen_fw_poll_work(struct work_struct *work)
2714{
2715 struct netxen_adapter *adapter = container_of(work,
2716 struct netxen_adapter, fw_work.work);
2717
2718 if (test_bit(__NX_RESETTING, &adapter->state))
2719 goto reschedule;
2720
9d01412a
MC		 2721 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2722 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
6a581e93
DP		 2723 if (!adapter->has_link_events) {
2724
2725 netxen_nic_handle_phy_intr(adapter);
2726
2727 if (adapter->link_changed)
2728 netxen_nic_set_link_parameters(adapter);
2729 }
2730 }
2731
2732 if (netxen_check_health(adapter))
2733 return;
2734
2735reschedule:
2736 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2737}
2738
fa3ce355
NK		 2739static ssize_t
2740netxen_store_bridged_mode(struct device *dev,
2741 struct device_attribute *attr, const char *buf, size_t len)
2742{
2743 struct net_device *net = to_net_dev(dev);
2744 struct netxen_adapter *adapter = netdev_priv(net);
2745 unsigned long new;
2746 int ret = -EINVAL;
2747
2748 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2749 goto err_out;
2750
2751 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2752 goto err_out;
2753
67d6bfa6 2754 if (kstrtoul(buf, 2, &new))
fa3ce355
NK		 2755 goto err_out;
2756
2757 if (!netxen_config_bridged_mode(adapter, !!new))
2758 ret = len;
2759
2760err_out:
2761 return ret;
2762}
2763
2764static ssize_t
2765netxen_show_bridged_mode(struct device *dev,
2766 struct device_attribute *attr, char *buf)
2767{
2768 struct net_device *net = to_net_dev(dev);
2769 struct netxen_adapter *adapter;
2770 int bridged_mode = 0;
2771
2772 adapter = netdev_priv(net);
2773
2774 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2775 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2776
2777 return sprintf(buf, "%d\n", bridged_mode);
2778}
2779
da6817eb 2780static const struct device_attribute dev_attr_bridged_mode = {
d3757ba4
JP		 2781 .attr = { .name = "bridged_mode", .mode = 0644 },
2782 .show = netxen_show_bridged_mode,
2783 .store = netxen_store_bridged_mode,
fa3ce355
NK		 2784};
2785
70f9cf89
DP		 2786static ssize_t
2787netxen_store_diag_mode(struct device *dev,
2788 struct device_attribute *attr, const char *buf, size_t len)
2789{
2790 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2791 unsigned long new;
2792
67d6bfa6 2793 if (kstrtoul(buf, 2, &new))
70f9cf89
DP		 2794 return -EINVAL;
2795
2796 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2797 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2798
2799 return len;
2800}
2801
2802static ssize_t
2803netxen_show_diag_mode(struct device *dev,
2804 struct device_attribute *attr, char *buf)
2805{
2806 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2807
2808 return sprintf(buf, "%d\n",
2809 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2810}
2811
da6817eb 2812static const struct device_attribute dev_attr_diag_mode = {
d3757ba4 2813 .attr = { .name = "diag_mode", .mode = 0644 },
70f9cf89
DP		 2814 .show = netxen_show_diag_mode,
2815 .store = netxen_store_diag_mode,
2816};
2817
2818static int
2819netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2820 loff_t offset, size_t size)
2821{
0b9715e6
AKS		 2822 size_t crb_size = 4;
2823
70f9cf89
DP		 2824 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2825 return -EIO;
2826
0b9715e6
AKS		 2827 if (offset < NETXEN_PCI_CRBSPACE) {
2828 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2829 return -EINVAL;
70f9cf89 2830
0b9715e6
AKS		 2831 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2832 NETXEN_PCI_CAMQM_2M_END))
2833 crb_size = 8;
2834 else
2835 return -EINVAL;
2836 }
2837
2838 if ((size != crb_size) || (offset & (crb_size-1)))
2839 return -EINVAL;
70f9cf89
DP		 2840
2841 return 0;
2842}
2843
2844static ssize_t
2c3c8bea
CW		 2845netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2846 struct bin_attribute *attr,
70f9cf89
DP		 2847 char *buf, loff_t offset, size_t size)
2848{
016c0bba 2849 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2850 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2851 u32 data;
0b9715e6 2852 u64 qmdata;
70f9cf89
DP		 2853 int ret;
2854
2855 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2856 if (ret != 0)
2857 return ret;
2858
0b9715e6
AKS		 2859 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2860 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2861 NETXEN_PCI_CAMQM_2M_END)) {
2862 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2863 memcpy(buf, &qmdata, size);
2864 } else {
2865 data = NXRD32(adapter, offset);
2866 memcpy(buf, &data, size);
2867 }
2868
70f9cf89
DP		 2869 return size;
2870}
2871
2872static ssize_t
2c3c8bea
CW		 2873netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2874 struct bin_attribute *attr,
70f9cf89
DP		 2875 char *buf, loff_t offset, size_t size)
2876{
016c0bba 2877 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2878 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2879 u32 data;
0b9715e6 2880 u64 qmdata;
70f9cf89
DP		 2881 int ret;
2882
2883 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2884 if (ret != 0)
2885 return ret;
2886
0b9715e6
AKS		 2887 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2888 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2889 NETXEN_PCI_CAMQM_2M_END)) {
2890 memcpy(&qmdata, buf, size);
2891 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2892 } else {
2893 memcpy(&data, buf, size);
2894 NXWR32(adapter, offset, data);
2895 }
2896
70f9cf89
DP		 2897 return size;
2898}
2899
2900static int
2901netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2902 loff_t offset, size_t size)
2903{
2904 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2905 return -EIO;
2906
2907 if ((size != 8) || (offset & 0x7))
2908 return -EIO;
2909
2910 return 0;
2911}
2912
2913static ssize_t
2c3c8bea
CW		 2914netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2915 struct bin_attribute *attr,
70f9cf89
DP		 2916 char *buf, loff_t offset, size_t size)
2917{
016c0bba 2918 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 2919 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2920 u64 data;
2921 int ret;
2922
2923 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2924 if (ret != 0)
2925 return ret;
2926
2927 if (adapter->pci_mem_read(adapter, offset, &data))
2928 return -EIO;
2929
2930 memcpy(buf, &data, size);
2931
2932 return size;
2933}
2934
2c3c8bea 2935static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
70f9cf89
DP		 2936 struct bin_attribute *attr, char *buf,
2937 loff_t offset, size_t size)
2938{
016c0bba 2939 struct device *dev = kobj_to_dev(kobj);
70f9cf89
DP		 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 memcpy(&data, buf, size);
2949
2950 if (adapter->pci_mem_write(adapter, offset, data))
2951 return -EIO;
2952
2953 return size;
2954}
2955
2956
ff292458 2957static const struct bin_attribute bin_attr_crb = {
d3757ba4 2958 .attr = { .name = "crb", .mode = 0644 },
70f9cf89
DP		 2959 .size = 0,
2960 .read = netxen_sysfs_read_crb,
2961 .write = netxen_sysfs_write_crb,
2962};
2963
ff292458 2964static const struct bin_attribute bin_attr_mem = {
d3757ba4 2965 .attr = { .name = "mem", .mode = 0644 },
70f9cf89
DP		 2966 .size = 0,
2967 .read = netxen_sysfs_read_mem,
2968 .write = netxen_sysfs_write_mem,
2969};
2970
d612698b
SC		 2971static ssize_t
2972netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2973 struct bin_attribute *attr,
2974 char *buf, loff_t offset, size_t size)
2975{
016c0bba 2976 struct device *dev = kobj_to_dev(kobj);
d612698b
SC		 2977 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2978 struct net_device *netdev = adapter->netdev;
2979 struct netxen_dimm_cfg dimm;
2980 u8 dw, rows, cols, banks, ranks;
2981 u32 val;
2982
748a7295 2983 if (size < attr->size) {
d612698b 2984 netdev_err(netdev, "Invalid size\n");
748a7295 2985 return -EINVAL;
d612698b
SC		 2986 }
2987
2988 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2989 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2990
2991 /* Checks if DIMM info is valid. */
2992 if (val & NETXEN_DIMM_VALID_FLAG) {
2993 netdev_err(netdev, "Invalid DIMM flag\n");
2994 dimm.presence = 0xff;
2995 goto out;
2996 }
2997
2998 rows = NETXEN_DIMM_NUMROWS(val);
2999 cols = NETXEN_DIMM_NUMCOLS(val);
3000 ranks = NETXEN_DIMM_NUMRANKS(val);
3001 banks = NETXEN_DIMM_NUMBANKS(val);
3002 dw = NETXEN_DIMM_DATAWIDTH(val);
3003
3004 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3005
3006 /* Checks if DIMM info is present. */
3007 if (!dimm.presence) {
3008 netdev_err(netdev, "DIMM not present\n");
3009 goto out;
3010 }
3011
3012 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3013
3014 switch (dimm.dimm_type) {
3015 case NETXEN_DIMM_TYPE_RDIMM:
3016 case NETXEN_DIMM_TYPE_UDIMM:
3017 case NETXEN_DIMM_TYPE_SO_DIMM:
3018 case NETXEN_DIMM_TYPE_Micro_DIMM:
3019 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3020 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3021 break;
3022 default:
3023 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3024 goto out;
3025 }
3026
3027 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3028 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3029 else
3030 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3031
3032 if (val & NETXEN_DIMM_SIZE) {
3033 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3034 goto out;
3035 }
3036
3037 if (!rows) {
3038 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3039 goto out;
3040 }
3041
3042 if (!cols) {
3043 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3044 goto out;
3045 }
3046
3047 if (!banks) {
3048 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3049 goto out;
3050 }
3051
3052 ranks += 1;
3053
3054 switch (dw) {
3055 case 0x0:
3056 dw = 32;
3057 break;
3058 case 0x1:
3059 dw = 33;
3060 break;
3061 case 0x2:
3062 dw = 36;
3063 break;
3064 case 0x3:
3065 dw = 64;
3066 break;
3067 case 0x4:
3068 dw = 72;
3069 break;
3070 case 0x5:
3071 dw = 80;
3072 break;
3073 case 0x6:
3074 dw = 128;
3075 break;
3076 case 0x7:
3077 dw = 144;
3078 break;
3079 default:
3080 netdev_err(netdev, "Invalid data-width %x\n", dw);
3081 goto out;
3082 }
3083
3084 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3085 /* Size returned in MB. */
3086 dimm.size = (dimm.size) / 0x100000;
3087out:
3088 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3089 return sizeof(struct netxen_dimm_cfg);
3090
3091}
3092
ff292458 3093static const struct bin_attribute bin_attr_dimm = {
d3757ba4 3094 .attr = { .name = "dimm", .mode = 0644 },
748a7295 3095 .size = sizeof(struct netxen_dimm_cfg),
d612698b
SC		 3096 .read = netxen_sysfs_read_dimm,
3097};
3098
caa2dd53 3099
fa3ce355
NK		 3100static void
3101netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3102{
b8c30812 3103 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3104
3105 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3106 /* bridged_mode control */
3107 if (device_create_file(dev, &dev_attr_bridged_mode)) {
b8c30812 3108 dev_warn(dev,
fa3ce355
NK		 3109 "failed to create bridged_mode sysfs entry\n");
3110 }
3111 }
3112}
3113
3114static void
3115netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3116{
b8c30812 3117 struct device *dev = &adapter->pdev->dev;
fa3ce355
NK		 3118
3119 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3120 device_remove_file(dev, &dev_attr_bridged_mode);
3121}
3122
70f9cf89
DP		 3123static void
3124netxen_create_diag_entries(struct netxen_adapter *adapter)
3125{
3126 struct pci_dev *pdev = adapter->pdev;
3127 struct device *dev;
3128
3129 dev = &pdev->dev;
3130 if (device_create_file(dev, &dev_attr_diag_mode))
3131 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3132 if (device_create_bin_file(dev, &bin_attr_crb))
3133 dev_info(dev, "failed to create crb sysfs entry\n");
3134 if (device_create_bin_file(dev, &bin_attr_mem))
3135 dev_info(dev, "failed to create mem sysfs entry\n");
d612698b
SC		 3136 if (device_create_bin_file(dev, &bin_attr_dimm))
3137 dev_info(dev, "failed to create dimm sysfs entry\n");
70f9cf89
DP		 3138}
3139
3140
3141static void
3142netxen_remove_diag_entries(struct netxen_adapter *adapter)
3143{
3144 struct pci_dev *pdev = adapter->pdev;
3145 struct device *dev = &pdev->dev;
3146
3147 device_remove_file(dev, &dev_attr_diag_mode);
3148 device_remove_bin_file(dev, &bin_attr_crb);
3149 device_remove_bin_file(dev, &bin_attr_mem);
d612698b 3150 device_remove_bin_file(dev, &bin_attr_dimm);
70f9cf89
DP		 3151}
3152
044824d9
DP		 3153#ifdef CONFIG_INET
3154
6598b169
DP		 3155#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3156
3157static int
3158netxen_destip_supported(struct netxen_adapter *adapter)
3159{
3160 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3161 return 0;
3162
3163 if (adapter->ahw.cut_through)
3164 return 0;
3165
3166 return 1;
3167}
3168
d0725e4d 3169static void
8a7fbfab 3170netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
57569d0e 3171{
8a7fbfab 3172 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3173
8a7fbfab 3174 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3175 if (master) {
3176 if (cur->master) {
3177 netxen_config_ipaddr(adapter, cur->ip_addr,
3178 NX_IP_DOWN);
3179 list_del(&cur->list);
3180 kfree(cur);
3181 }
3182 } else {
3183 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3184 list_del(&cur->list);
3185 kfree(cur);
3186 }
57569d0e 3187 }
57569d0e 3188}
8a7fbfab 3189
3190static bool
3191netxen_list_config_ip(struct netxen_adapter *adapter,
57569d0e
RB		 3192 struct in_ifaddr *ifa, unsigned long event)
3193{
3194 struct net_device *dev;
8a7fbfab 3195 struct nx_ip_list *cur, *tmp_cur;
57569d0e 3196 struct list_head *head;
8a7fbfab 3197 bool ret = false;
57569d0e
RB		 3198
3199 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3200
3201 if (dev == NULL)
8a7fbfab 3202 goto out;
57569d0e
RB		 3203
3204 switch (event) {
3205 case NX_IP_UP:
8a7fbfab 3206 list_for_each(head, &adapter->ip_list) {
3207 cur = list_entry(head, struct nx_ip_list, list);
57569d0e
RB		 3208
3209 if (cur->ip_addr == ifa->ifa_address)
8a7fbfab 3210 goto out;
57569d0e
RB		 3211 }
3212
8a7fbfab 3213 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
b2adaca9 3214 if (cur == NULL)
8a7fbfab 3215 goto out;
d0d7b10b 3216 if (is_vlan_dev(dev))
8a7fbfab 3217 dev = vlan_dev_real_dev(dev);
3218 cur->master = !!netif_is_bond_master(dev);
57569d0e 3219 cur->ip_addr = ifa->ifa_address;
8a7fbfab 3220 list_add_tail(&cur->list, &adapter->ip_list);
3221 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3222 ret = true;
57569d0e
RB		 3223 break;
3224 case NX_IP_DOWN:
3225 list_for_each_entry_safe(cur, tmp_cur,
8a7fbfab 3226 &adapter->ip_list, list) {
57569d0e
RB		 3227 if (cur->ip_addr == ifa->ifa_address) {
3228 list_del(&cur->list);
3229 kfree(cur);
8a7fbfab 3230 netxen_config_ipaddr(adapter, ifa->ifa_address,
3231 NX_IP_DOWN);
3232 ret = true;
57569d0e
RB		 3233 break;
3234 }
3235 }
3236 }
8a7fbfab 3237out:
3238 return ret;
57569d0e 3239}
8a7fbfab 3240
57569d0e
RB		 3241static void
3242netxen_config_indev_addr(struct netxen_adapter *adapter,
3243 struct net_device *dev, unsigned long event)
d0725e4d
AKS		 3244{
3245 struct in_device *indev;
cb8f1478 3246 struct in_ifaddr *ifa;
d0725e4d 3247
3db76755 3248 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 3249 return;
3250
3251 indev = in_dev_get(dev);
3252 if (!indev)
3253 return;
3254
cb8f1478
FW		 3255 rcu_read_lock();
3256 in_dev_for_each_ifa_rcu(ifa, indev) {
d0725e4d
AKS		 3257 switch (event) {
3258 case NETDEV_UP:
8a7fbfab 3259 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
d0725e4d
AKS		 3260 break;
3261 case NETDEV_DOWN:
8a7fbfab 3262 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
d0725e4d
AKS		 3263 break;
3264 default:
3265 break;
3266 }
cb8f1478
FW		 3267 }
3268 rcu_read_unlock();
d0725e4d 3269 in_dev_put(indev);
d0725e4d
AKS		 3270}
3271
57569d0e
RB		 3272static void
3273netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3274
3275{
3276 struct netxen_adapter *adapter = netdev_priv(netdev);
8a7fbfab 3277 struct nx_ip_list *pos, *tmp_pos;
57569d0e
RB		 3278 unsigned long ip_event;
3279
3280 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3281 netxen_config_indev_addr(adapter, netdev, event);
3282
8a7fbfab 3283 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
57569d0e
RB		 3284 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3285 }
3286}
3287
8a7fbfab 3288static inline bool
3289netxen_config_checkdev(struct net_device *dev)
3290{
3291 struct netxen_adapter *adapter;
3292
3293 if (!is_netxen_netdev(dev))
3294 return false;
3295 adapter = netdev_priv(dev);
3296 if (!adapter)
3297 return false;
3298 if (!netxen_destip_supported(adapter))
3299 return false;
3300 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3301 return false;
3302
3303 return true;
3304}
3305
3306/**
3307 * netxen_config_master - configure addresses based on master
3308 * @dev: netxen device
3309 * @event: netdev event
3310 */
3311static void netxen_config_master(struct net_device *dev, unsigned long event)
3312{
3313 struct net_device *master, *slave;
3314 struct netxen_adapter *adapter = netdev_priv(dev);
3315
3316 rcu_read_lock();
3317 master = netdev_master_upper_dev_get_rcu(dev);
3318 /*
3319 * This is the case where the netxen nic is being
3320 * enslaved and is dev_open()ed in bond_enslave()
3321 * Now we should program the bond's (and its vlans')
3322 * addresses in the netxen NIC.
3323 */
3324 if (master && netif_is_bond_master(master) &&
3325 !netif_is_bond_slave(dev)) {
3326 netxen_config_indev_addr(adapter, master, event);
3327 for_each_netdev_rcu(&init_net, slave)
d0d7b10b 3328 if (is_vlan_dev(slave) &&
8a7fbfab 3329 vlan_dev_real_dev(slave) == master)
3330 netxen_config_indev_addr(adapter, slave, event);
3331 }
3332 rcu_read_unlock();
3333 /*
3334 * This is the case where the netxen nic is being
3335 * released and is dev_close()ed in bond_release()
3336 * just before IFF_BONDING is stripped.
3337 */
3338 if (!master && dev->priv_flags & IFF_BONDING)
3339 netxen_free_ip_list(adapter, true);
3340}
3341
6598b169
DP		 3342static int netxen_netdev_event(struct notifier_block *this,
3343 unsigned long event, void *ptr)
3344{
3345 struct netxen_adapter *adapter;
351638e7 3346 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
57569d0e 3347 struct net_device *orig_dev = dev;
8a7fbfab 3348 struct net_device *slave;
6598b169
DP		 3349
3350recheck:
3351 if (dev == NULL)
3352 goto done;
3353
d0d7b10b 3354 if (is_vlan_dev(dev)) {
6598b169
DP		 3355 dev = vlan_dev_real_dev(dev);
3356 goto recheck;
3357 }
8a7fbfab 3358 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3359 /* If this is a bonding device, look for netxen-based slaves*/
3360 if (netif_is_bond_master(dev)) {
3361 rcu_read_lock();
3362 for_each_netdev_in_bond_rcu(dev, slave) {
3363 if (!netxen_config_checkdev(slave))
3364 continue;
3365 adapter = netdev_priv(slave);
3366 netxen_config_indev_addr(adapter,
3367 orig_dev, event);
3368 }
3369 rcu_read_unlock();
3370 } else {
3371 if (!netxen_config_checkdev(dev))
3372 goto done;
3373 adapter = netdev_priv(dev);
3374 /* Act only if the actual netxen is the target */
3375 if (orig_dev == dev)
3376 netxen_config_master(dev, event);
3377 netxen_config_indev_addr(adapter, orig_dev, event);
3378 }
3379 }
6598b169
DP		 3380done:
3381 return NOTIFY_DONE;
3382}
3383
3384static int
3385netxen_inetaddr_event(struct notifier_block *this,
3386 unsigned long event, void *ptr)
3387{
3388 struct netxen_adapter *adapter;
8a7fbfab 3389 struct net_device *dev, *slave;
6598b169 3390 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8a7fbfab 3391 unsigned long ip_event;
6598b169
DP		 3392
3393 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
8a7fbfab 3394 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
6598b169 3395recheck:
57569d0e 3396 if (dev == NULL)
6598b169
DP		 3397 goto done;
3398
d0d7b10b 3399 if (is_vlan_dev(dev)) {
6598b169
DP		 3400 dev = vlan_dev_real_dev(dev);
3401 goto recheck;
3402 }
8a7fbfab 3403 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3404 /* If this is a bonding device, look for netxen-based slaves*/
3405 if (netif_is_bond_master(dev)) {
3406 rcu_read_lock();
3407 for_each_netdev_in_bond_rcu(dev, slave) {
3408 if (!netxen_config_checkdev(slave))
3409 continue;
3410 adapter = netdev_priv(slave);
3411 netxen_list_config_ip(adapter, ifa, ip_event);
3412 }
3413 rcu_read_unlock();
3414 } else {
3415 if (!netxen_config_checkdev(dev))
3416 goto done;
3417 adapter = netdev_priv(dev);
3418 netxen_list_config_ip(adapter, ifa, ip_event);
3419 }
6598b169 3420 }
6598b169
DP		 3421done:
3422 return NOTIFY_DONE;
3423}
3424
3425static struct notifier_block netxen_netdev_cb = {
3426 .notifier_call = netxen_netdev_event,
3427};
3428
3429static struct notifier_block netxen_inetaddr_cb = {
3430 .notifier_call = netxen_inetaddr_event,
3431};
9feae56c
RD		 3432#else
3433static void
57569d0e
RB		 3434netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3435{ }
3436static void
8a7fbfab 3437netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
9feae56c 3438{ }
044824d9 3439#endif
6598b169 3440
3646f0e5 3441static const struct pci_error_handlers netxen_err_handler = {
e87ad553
AKS		 3442 .error_detected = netxen_io_error_detected,
3443 .slot_reset = netxen_io_slot_reset,
e87ad553
AKS		 3444};
3445
063ad9bc
VG		 3446static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops,
3447 netxen_nic_suspend,
3448 netxen_nic_resume);
3449
3d396eb1
AK		 3450static struct pci_driver netxen_driver = {
3451 .name = netxen_nic_driver_name,
3452 .id_table = netxen_pci_tbl,
3453 .probe = netxen_nic_probe,
c3f9c88c 3454 .remove = netxen_nic_remove,
063ad9bc 3455 .driver.pm = &netxen_nic_pm_ops,
e87ad553
AKS		 3456 .shutdown = netxen_nic_shutdown,
3457 .err_handler = &netxen_err_handler
3d396eb1
AK		 3458};
3459
3d396eb1
AK		 3460static int __init netxen_init_module(void)
3461{
ff4fbd43
DP		 3462 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3463
044824d9 3464#ifdef CONFIG_INET
6598b169
DP		 3465 register_netdevice_notifier(&netxen_netdev_cb);
3466 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 3467#endif
184231bd 3468 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 3469}
3470
3471module_init(netxen_init_module);
3472
3473static void __exit netxen_exit_module(void)
3474{
3d396eb1 3475 pci_unregister_driver(&netxen_driver);
6598b169 3476
044824d9 3477#ifdef CONFIG_INET
6598b169
DP		 3478 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3479 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 3480#endif
3d396eb1
AK		 3481}
3482
3483module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)