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