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