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netxen: minor suspend resume fixes
[mirror_ubuntu-focal-kernel.git] / drivers / net / 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
AK		 21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.
80922fbc 23 *
3d396eb1
AK		 24 */
25
cb8011ad 26#include <linux/vmalloc.h>
e98e3350 27#include <linux/interrupt.h>
3d396eb1
AK		 28#include "netxen_nic_hw.h"
29
30#include "netxen_nic.h"
3d396eb1 31
1494a814 32#include <linux/dma-mapping.h>
391587c3 33#include <linux/if_vlan.h>
c9bdd4b5 34#include <net/ip.h>
00977784 35#include <linux/ipv6.h>
6598b169 36#include <linux/inetdevice.h>
0531d7b8 37#include <linux/sysfs.h>
1494a814 38
c25c0b9b 39MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
3d396eb1
AK		 40MODULE_LICENSE("GPL");
41MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
7e8e5d97
DP		 42MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
43MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
44MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
45MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
3d396eb1 46
ceded32f 47char netxen_nic_driver_name[] = "netxen_nic";
c25c0b9b 48static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
cb8011ad 49 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 50
2956640d
DP		 51static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52
53/* Default to restricted 1G auto-neg mode */
54static int wol_port_mode = 5;
55
56static int use_msi = 1;
57
58static int use_msi_x = 1;
59
afdafff1
SH		 60static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61module_param(auto_fw_reset, int, 0644);
62MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
caa2dd53 63
3d396eb1 64static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 65 const struct pci_device_id *ent);
3d396eb1
AK		 66static void __devexit netxen_nic_remove(struct pci_dev *pdev);
67static int netxen_nic_open(struct net_device *netdev);
68static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 69static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
70 struct net_device *);
3d396eb1 71static void netxen_tx_timeout(struct net_device *netdev);
74c520da 72static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 73static void netxen_fw_poll_work(struct work_struct *work);
74static void netxen_schedule_work(struct netxen_adapter *adapter,
75 work_func_t func, int delay);
76static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 77static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 78#ifdef CONFIG_NET_POLL_CONTROLLER
79static void netxen_nic_poll_controller(struct net_device *netdev);
80#endif
fa3ce355
NK		 81
82static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
83static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 84static void netxen_create_diag_entries(struct netxen_adapter *adapter);
85static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 86
6a581e93
DP		 87static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88static int netxen_can_start_firmware(struct netxen_adapter *adapter);
89
1494a814 90static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 91static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 92static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 93
d0725e4d
AKS		 94static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
95
3d396eb1 96/* PCI Device ID Table */
70081ac5 97#define ENTRY(device) \
040dec3b 98 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 99 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
100
3d396eb1 101static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 102 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
103 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
104 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
105 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
106 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
109 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 110 {0,}
111};
112
113MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
114
7830b22c
DP		 115static uint32_t crb_cmd_producer[4] = {
116 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
117 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
118};
119
c9fc891f 120void
3ce06a32 121netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 122 struct nx_host_tx_ring *tx_ring)
3176ff3e 123{
195c5f98 124 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
cb2107be
DP		 125
126 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
127 netif_stop_queue(adapter->netdev);
128 smp_mb();
129 }
3176ff3e
MT		 130}
131
7830b22c
DP		 132static uint32_t crb_cmd_consumer[4] = {
133 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
134 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
135};
136
3ce06a32
DP		 137static inline void
138netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 139 struct nx_host_tx_ring *tx_ring)
3176ff3e 140{
195c5f98 141 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 142}
143
2956640d 144static uint32_t msi_tgt_status[8] = {
443be796 145 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 146 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
147 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
148 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 149};
150
2956640d
DP		 151static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
152
d8b100c5 153static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 154{
d8b100c5
DP		 155 struct netxen_adapter *adapter = sds_ring->adapter;
156
195c5f98 157 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 158}
159
d8b100c5 160static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 161{
d8b100c5
DP		 162 struct netxen_adapter *adapter = sds_ring->adapter;
163
195c5f98 164 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 165
092bc571 166 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 167 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 168}
169
71dcddbd
DP		 170static int
171netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
172{
173 int size = sizeof(struct nx_host_sds_ring) * count;
174
175 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
176
177 return (recv_ctx->sds_rings == NULL);
178}
179
d8b100c5 180static void
71dcddbd
DP		 181netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
182{
183 if (recv_ctx->sds_rings != NULL)
184 kfree(recv_ctx->sds_rings);
232e7d68
DP		 185
186 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 187}
188
189static int
d8b100c5
DP		 190netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
191{
192 int ring;
193 struct nx_host_sds_ring *sds_ring;
194 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
195
71dcddbd 196 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 197 return -ENOMEM;
71dcddbd 198
d8b100c5
DP		 199 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
200 sds_ring = &recv_ctx->sds_rings[ring];
201 netif_napi_add(netdev, &sds_ring->napi,
202 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
203 }
71dcddbd
DP		 204
205 return 0;
d8b100c5
DP		 206}
207
232e7d68
DP		 208static void
209netxen_napi_del(struct netxen_adapter *adapter)
210{
211 int ring;
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
214
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
218 }
219
220 netxen_free_sds_rings(&adapter->recv_ctx);
221}
222
d8b100c5
DP		 223static void
224netxen_napi_enable(struct netxen_adapter *adapter)
225{
226 int ring;
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
229
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 netxen_nic_enable_int(sds_ring);
234 }
235}
236
237static void
238netxen_napi_disable(struct netxen_adapter *adapter)
239{
240 int ring;
241 struct nx_host_sds_ring *sds_ring;
242 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
243
244 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
245 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 246 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 247 napi_synchronize(&sds_ring->napi);
248 napi_disable(&sds_ring->napi);
d8b100c5
DP		 249 }
250}
251
50c643e7 252static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 253{
254 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 255 uint64_t mask, cmask;
256
257 adapter->pci_using_dac = 0;
2956640d 258
6afd142f 259 mask = DMA_BIT_MASK(32);
6afd142f 260 cmask = DMA_BIT_MASK(32);
1f434f63 261
50c643e7 262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 263#ifndef CONFIG_IA64
6afd142f 264 mask = DMA_BIT_MASK(35);
1f434f63 265#endif
50c643e7
DP		 266 } else {
267 mask = DMA_BIT_MASK(39);
268 cmask = mask;
269 }
270
2956640d 271 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 272 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 273 adapter->pci_using_dac = 1;
274 return 0;
275 }
2956640d 276
1f434f63
DP		 277 return -EIO;
278}
279
280/* Update addressable range if firmware supports it */
281static int
282nx_update_dma_mask(struct netxen_adapter *adapter)
283{
284 int change, shift, err;
50c643e7 285 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 286 struct pci_dev *pdev = adapter->pdev;
287
288 change = 0;
289
f98a9f69 290 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 291 if (shift > 32)
1f434f63
DP		 292 return 0;
293
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
295 change = 1;
296 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
297 change = 1;
298
299 if (change) {
300 old_mask = pdev->dma_mask;
50c643e7
DP		 301 old_cmask = pdev->dev.coherent_dma_mask;
302
f60f7856 303 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 304
305 err = pci_set_dma_mask(pdev, mask);
306 if (err)
50c643e7
DP		 307 goto err_out;
308
309 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
310
311 err = pci_set_consistent_dma_mask(pdev, mask);
312 if (err)
313 goto err_out;
314 }
315 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 316 }
317
2956640d 318 return 0;
50c643e7
DP		 319
320err_out:
321 pci_set_dma_mask(pdev, old_mask);
322 pci_set_consistent_dma_mask(pdev, old_cmask);
323 return err;
2956640d
DP		 324}
325
2956640d
DP		 326static int
327netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
328{
27c915a4 329 u32 val, timeout;
2956640d
DP		 330
331 if (first_boot == 0x55555555) {
332 /* This is the first boot after power up */
f98a9f69 333 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 334
335 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
336 return 0;
2956640d
DP		 337
338 /* PCI bus master workaround */
f98a9f69 339 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 340 if (!(first_boot & 0x4)) {
341 first_boot |= 0x4;
f98a9f69
DP		 342 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
343 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 344 }
345
346 /* This is the first boot after power up */
f98a9f69 347 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 348 if (first_boot != 0x80000f) {
349 /* clear the register for future unloads/loads */
f98a9f69 350 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 351 return -EIO;
2956640d
DP		 352 }
353
27c915a4 354 /* Start P2 boot loader */
f98a9f69
DP		 355 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
356 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 357 timeout = 0;
358 do {
359 msleep(1);
f98a9f69 360 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 361
362 if (++timeout > 5000)
363 return -EIO;
364
365 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 366 }
27c915a4 367 return 0;
2956640d
DP		 368}
369
370static void netxen_set_port_mode(struct netxen_adapter *adapter)
371{
372 u32 val, data;
373
1e2d0059 374 val = adapter->ahw.board_type;
2956640d
DP		 375 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
376 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
377 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
378 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 380 } else if (port_mode == NETXEN_PORT_MODE_XG) {
381 data = NETXEN_PORT_MODE_XG;
f98a9f69 382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 389 } else {
390 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 392 }
393
394 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
395 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
397 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
398 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
399 }
f98a9f69 400 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 401 }
402}
403
2956640d
DP		 404static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
405{
406 u32 control;
407 int pos;
408
409 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
410 if (pos) {
411 pci_read_config_dword(pdev, pos, &control);
412 if (enable)
413 control |= PCI_MSIX_FLAGS_ENABLE;
414 else
415 control = 0;
416 pci_write_config_dword(pdev, pos, control);
417 }
418}
419
be339aee 420static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 421{
422 int i;
423
be339aee 424 for (i = 0; i < count; i++)
2956640d
DP		 425 adapter->msix_entries[i].entry = i;
426}
427
9dc28efe
DP		 428static int
429netxen_read_mac_addr(struct netxen_adapter *adapter)
430{
431 int i;
432 unsigned char *p;
433 __le64 mac_addr;
9dc28efe
DP		 434 struct net_device *netdev = adapter->netdev;
435 struct pci_dev *pdev = adapter->pdev;
436
9dc28efe
DP		 437 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
438 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
439 return -EIO;
440 } else {
441 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
442 return -EIO;
443 }
444
445 p = (unsigned char *)&mac_addr;
446 for (i = 0; i < 6; i++)
447 netdev->dev_addr[i] = *(p + 5 - i);
448
449 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
5d09e534 450 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
9dc28efe
DP		 451
452 /* set station address */
453
e174961c
JB		 454 if (!is_valid_ether_addr(netdev->perm_addr))
455 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 456
457 return 0;
458}
459
3d0a3cc9
DP		 460int netxen_nic_set_mac(struct net_device *netdev, void *p)
461{
462 struct netxen_adapter *adapter = netdev_priv(netdev);
463 struct sockaddr *addr = p;
464
465 if (!is_valid_ether_addr(addr->sa_data))
466 return -EINVAL;
467
468 if (netif_running(netdev)) {
469 netif_device_detach(netdev);
470 netxen_napi_disable(adapter);
471 }
472
5d09e534 473 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
3d0a3cc9
DP		 474 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
475 adapter->macaddr_set(adapter, addr->sa_data);
476
477 if (netif_running(netdev)) {
478 netif_device_attach(netdev);
479 netxen_napi_enable(adapter);
480 }
481 return 0;
482}
483
1abd266f
SH		 484static void netxen_set_multicast_list(struct net_device *dev)
485{
486 struct netxen_adapter *adapter = netdev_priv(dev);
487
3d0a3cc9 488 adapter->set_multi(dev);
1abd266f
SH		 489}
490
491static const struct net_device_ops netxen_netdev_ops = {
492 .ndo_open = netxen_nic_open,
493 .ndo_stop = netxen_nic_close,
494 .ndo_start_xmit = netxen_nic_xmit_frame,
495 .ndo_get_stats = netxen_nic_get_stats,
496 .ndo_validate_addr = eth_validate_addr,
497 .ndo_set_multicast_list = netxen_set_multicast_list,
498 .ndo_set_mac_address = netxen_nic_set_mac,
499 .ndo_change_mtu = netxen_nic_change_mtu,
500 .ndo_tx_timeout = netxen_tx_timeout,
501#ifdef CONFIG_NET_POLL_CONTROLLER
502 .ndo_poll_controller = netxen_nic_poll_controller,
503#endif
504};
505
97daee83
DP		 506static void
507netxen_setup_intr(struct netxen_adapter *adapter)
508{
509 struct netxen_legacy_intr_set *legacy_intrp;
510 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 511 int err, num_msix;
512
513 if (adapter->rss_supported) {
514 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
515 MSIX_ENTRIES_PER_ADAPTER : 2;
516 } else
517 num_msix = 1;
518
519 adapter->max_sds_rings = 1;
97daee83
DP		 520
521 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 522
523 if (adapter->ahw.revision_id >= NX_P3_B0)
524 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
525 else
526 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 527
528 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
529 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_status_reg);
531 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_mask_reg);
533 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->pci_int_reg);
535 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
536
537 if (adapter->ahw.revision_id >= NX_P3_B1)
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
539 ISR_INT_STATE_REG);
540 else
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
542 CRB_INT_VECTOR);
97daee83
DP		 543
544 netxen_set_msix_bit(pdev, 0);
545
546 if (adapter->msix_supported) {
547
be339aee
DP		 548 netxen_init_msix_entries(adapter, num_msix);
549 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
550 if (err == 0) {
551 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
552 netxen_set_msix_bit(pdev, 1);
97daee83 553
be339aee
DP		 554 if (adapter->rss_supported)
555 adapter->max_sds_rings = num_msix;
97daee83 556
be339aee
DP		 557 dev_info(&pdev->dev, "using msi-x interrupts\n");
558 return;
559 }
560
561 if (err > 0)
562 pci_disable_msix(pdev);
563
564 /* fall through for msi */
97daee83 565 }
be339aee
DP		 566
567 if (use_msi && !pci_enable_msi(pdev)) {
568 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 569 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
570 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 571 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 572 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 573 return;
574 }
575
576 dev_info(&pdev->dev, "using legacy interrupts\n");
577 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 578}
579
580static void
581netxen_teardown_intr(struct netxen_adapter *adapter)
582{
583 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
584 pci_disable_msix(adapter->pdev);
585 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
586 pci_disable_msi(adapter->pdev);
587}
588
589static void
590netxen_cleanup_pci_map(struct netxen_adapter *adapter)
591{
592 if (adapter->ahw.db_base != NULL)
593 iounmap(adapter->ahw.db_base);
594 if (adapter->ahw.pci_base0 != NULL)
595 iounmap(adapter->ahw.pci_base0);
596 if (adapter->ahw.pci_base1 != NULL)
597 iounmap(adapter->ahw.pci_base1);
598 if (adapter->ahw.pci_base2 != NULL)
599 iounmap(adapter->ahw.pci_base2);
600}
601
602static int
603netxen_setup_pci_map(struct netxen_adapter *adapter)
604{
605 void __iomem *mem_ptr0 = NULL;
606 void __iomem *mem_ptr1 = NULL;
607 void __iomem *mem_ptr2 = NULL;
608 void __iomem *db_ptr = NULL;
609
71fb62fb
DP		 610 resource_size_t mem_base, db_base;
611 unsigned long mem_len, db_len = 0, pci_len0 = 0;
97daee83
DP		 612
613 struct pci_dev *pdev = adapter->pdev;
614 int pci_func = adapter->ahw.pci_func;
615
616 int err = 0;
617
618 /*
619 * Set the CRB window to invalid. If any register in window 0 is
620 * accessed it should set the window to 0 and then reset it to 1.
621 */
907fa120 622 adapter->ahw.crb_win = -1;
47abe356 623 adapter->ahw.ocm_win = -1;
97daee83
DP		 624
625 /* remap phys address */
626 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
627 mem_len = pci_resource_len(pdev, 0);
97daee83 628
97daee83
DP		 629 /* 128 Meg of memory */
630 if (mem_len == NETXEN_PCI_128MB_SIZE) {
631 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
632 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
633 SECOND_PAGE_GROUP_SIZE);
634 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
635 THIRD_PAGE_GROUP_SIZE);
47abe356 636 pci_len0 = FIRST_PAGE_GROUP_SIZE;
97daee83
DP		 637 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
638 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
639 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
640 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83 641 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83
DP		 642
643 mem_ptr0 = pci_ioremap_bar(pdev, 0);
644 if (mem_ptr0 == NULL) {
645 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
646 return -EIO;
647 }
648 pci_len0 = mem_len;
97daee83
DP		 649 } else {
650 return -EIO;
651 }
652
195c5f98
AKS		 653 netxen_setup_hwops(adapter);
654
97daee83
DP		 655 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
656
657 adapter->ahw.pci_base0 = mem_ptr0;
658 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 659 adapter->ahw.pci_base1 = mem_ptr1;
660 adapter->ahw.pci_base2 = mem_ptr2;
661
6abb4b83
AKS		 662 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
663 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
664 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
665
666 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
47abe356
DP		 667 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
668 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
669 }
670
97daee83
DP		 671 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
672 goto skip_doorbell;
673
674 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
675 db_len = pci_resource_len(pdev, 4);
676
677 if (db_len == 0) {
678 printk(KERN_ERR "%s: doorbell is disabled\n",
679 netxen_nic_driver_name);
680 err = -EIO;
681 goto err_out;
682 }
683
684 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
685 if (!db_ptr) {
686 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
687 netxen_nic_driver_name);
688 err = -EIO;
689 goto err_out;
690 }
691
692skip_doorbell:
693 adapter->ahw.db_base = db_ptr;
694 adapter->ahw.db_len = db_len;
695 return 0;
696
697err_out:
698 netxen_cleanup_pci_map(adapter);
699 return err;
700}
701
2b9e62ee
DP		 702static void
703netxen_check_options(struct netxen_adapter *adapter)
704{
705 u32 fw_major, fw_minor, fw_build;
706 char brd_name[NETXEN_MAX_SHORT_NAME];
707 char serial_num[32];
708 int i, offset, val;
709 int *ptr32;
710 struct pci_dev *pdev = adapter->pdev;
711
712 adapter->driver_mismatch = 0;
713
714 ptr32 = (int *)&serial_num;
715 offset = NX_FW_SERIAL_NUM_OFFSET;
716 for (i = 0; i < 8; i++) {
717 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
718 dev_err(&pdev->dev, "error reading board info\n");
719 adapter->driver_mismatch = 1;
720 return;
721 }
722 ptr32[i] = cpu_to_le32(val);
723 offset += sizeof(u32);
724 }
725
726 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
727 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
728 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
729
730 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
731
732 if (adapter->portnum == 0) {
733 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
734
c25c0b9b
DP		 735 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
736 module_name(THIS_MODULE),
2b9e62ee
DP		 737 brd_name, serial_num, adapter->ahw.revision_id);
738 }
739
740 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
741 adapter->driver_mismatch = 1;
742 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
743 fw_major, fw_minor, fw_build);
744 return;
745 }
746
747 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
748 i = NXRD32(adapter, NETXEN_SRE_MISC);
749 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
750 }
751
752 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
753 fw_major, fw_minor, fw_build,
754 adapter->ahw.cut_through ? "cut-through" : "legacy");
755
756 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
757 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
758
759 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
760
761 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
762 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
763 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
764 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
765 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
766 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
767 }
768
769 adapter->msix_supported = 0;
770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
771 adapter->msix_supported = !!use_msi_x;
772 adapter->rss_supported = !!use_msi_x;
773 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
774 switch (adapter->ahw.board_type) {
775 case NETXEN_BRDTYPE_P2_SB31_10G:
776 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
777 adapter->msix_supported = !!use_msi_x;
778 adapter->rss_supported = !!use_msi_x;
779 break;
780 default:
781 break;
782 }
783 }
784
785 adapter->num_txd = MAX_CMD_DESCRIPTORS;
786
787 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
788 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
789 adapter->max_rds_rings = 3;
790 } else {
791 adapter->num_lro_rxd = 0;
792 adapter->max_rds_rings = 2;
793 }
794}
795
ba599d4f 796static int
6a581e93 797netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 798{
799 int val, err, first_boot;
800 struct pci_dev *pdev = adapter->pdev;
801
2b9e62ee
DP		 802 /* required for NX2031 dummy dma */
803 err = nx_set_dma_mask(adapter);
804 if (err)
805 return err;
806
6a581e93 807 if (!netxen_can_start_firmware(adapter))
96f2ebd2 808 goto wait_init;
0b72e659 809
f98a9f69 810 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 811
812 err = netxen_check_hw_init(adapter, first_boot);
813 if (err) {
814 dev_err(&pdev->dev, "error in init HW init sequence\n");
815 return err;
816 }
817
6a581e93 818 netxen_request_firmware(adapter);
f7185c71 819
67c38fc6 820 err = netxen_need_fw_reset(adapter);
1dbc84a7 821 if (err < 0)
db4cfd8a 822 goto err_out;
1dbc84a7 823 if (err == 0)
8f9b3f69 824 goto wait_init;
67c38fc6 825
ba599d4f 826 if (first_boot != 0x55555555) {
f98a9f69 827 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
0be367bd 828 netxen_pinit_from_rom(adapter);
ba599d4f
DP		 829 msleep(1);
830 }
567c6c4e 831
f98a9f69 832 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 833 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
834 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
835
567c6c4e
DP		 836 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
837 netxen_set_port_mode(adapter);
838
db4cfd8a
DP		 839 err = netxen_load_firmware(adapter);
840 if (err)
841 goto err_out;
ba599d4f 842
6a581e93
DP		 843 netxen_release_firmware(adapter);
844
ba599d4f
DP		 845 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
846
847 /* Initialize multicast addr pool owners */
848 val = 0x7654;
1e2d0059 849 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 850 val |= 0x0f000000;
f98a9f69 851 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 852
853 }
854
83ac51fa 855 err = netxen_init_dummy_dma(adapter);
ba599d4f 856 if (err)
db4cfd8a 857 goto err_out;
ba599d4f
DP		 858
859 /*
860 * Tell the hardware our version number.
861 */
862 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
863 | ((_NETXEN_NIC_LINUX_MINOR << 8))
864 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 865 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 866
96f2ebd2 867wait_init:
ba599d4f
DP		 868 /* Handshake with the card before we register the devices. */
869 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
870 if (err) {
83ac51fa 871 netxen_free_dummy_dma(adapter);
db4cfd8a 872 goto err_out;
ba599d4f
DP		 873 }
874
8f9b3f69
AKS		 875 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
876
68b3cae0
DP		 877 nx_update_dma_mask(adapter);
878
6a581e93 879 netxen_check_options(adapter);
68b3cae0 880
74c520da
AKS		 881 adapter->need_fw_reset = 0;
882
ec5c50cb 883 /* fall through and release firmware */
db4cfd8a
DP		 884
885err_out:
886 netxen_release_firmware(adapter);
887 return err;
ba599d4f
DP		 888}
889
9f5bc7f1
DP		 890static int
891netxen_nic_request_irq(struct netxen_adapter *adapter)
892{
893 irq_handler_t handler;
d8b100c5
DP		 894 struct nx_host_sds_ring *sds_ring;
895 int err, ring;
896
9f5bc7f1
DP		 897 unsigned long flags = IRQF_SAMPLE_RANDOM;
898 struct net_device *netdev = adapter->netdev;
d8b100c5 899 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 900
9f5bc7f1
DP		 901 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
902 handler = netxen_msix_intr;
903 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
904 handler = netxen_msi_intr;
905 else {
906 flags |= IRQF_SHARED;
907 handler = netxen_intr;
908 }
909 adapter->irq = netdev->irq;
910
d8b100c5
DP		 911 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
912 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 913 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 914 err = request_irq(sds_ring->irq, handler,
915 flags, sds_ring->name, sds_ring);
916 if (err)
917 return err;
918 }
919
920 return 0;
921}
922
923static void
924netxen_nic_free_irq(struct netxen_adapter *adapter)
925{
926 int ring;
927 struct nx_host_sds_ring *sds_ring;
928
929 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
930
931 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
932 sds_ring = &recv_ctx->sds_rings[ring];
933 free_irq(sds_ring->irq, sds_ring);
934 }
9f5bc7f1
DP		 935}
936
ca2ef330
DP		 937static void
938netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
939{
940 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
941 adapter->coal.normal.data.rx_time_us =
942 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
943 adapter->coal.normal.data.rx_packets =
944 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
945 adapter->coal.normal.data.tx_time_us =
946 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
947 adapter->coal.normal.data.tx_packets =
948 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
949}
950
6f771419 951/* with rtnl_lock */
9f5bc7f1 952static int
6f771419 953__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1
DP		 954{
955 int err;
956
db4cfd8a
DP		 957 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
958 return -EIO;
959
9f5bc7f1
DP		 960 err = adapter->init_port(adapter, adapter->physical_port);
961 if (err) {
962 printk(KERN_ERR "%s: Failed to initialize port %d\n",
963 netxen_nic_driver_name, adapter->portnum);
964 return err;
965 }
3d0a3cc9 966 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
5d09e534 967 adapter->macaddr_set(adapter, adapter->mac_addr);
9f5bc7f1 968
3d0a3cc9
DP		 969 adapter->set_multi(netdev);
970 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 971
972 adapter->ahw.linkup = 0;
9f5bc7f1 973
d8b100c5
DP		 974 if (adapter->max_sds_rings > 1)
975 netxen_config_rss(adapter, 1);
9f5bc7f1 976
ca2ef330
DP		 977 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
978 netxen_config_intr_coalesce(adapter);
979
1bb482f8
NK		 980 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
981 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
982
b2af9cb0
DP		 983 netxen_napi_enable(adapter);
984
5103c9f7 985 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 986 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 987 else
988 netxen_nic_set_link_parameters(adapter);
989
6a581e93 990 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 991 return 0;
992}
993
6f771419
AKS		 994/* Usage: During resume and firmware recovery module.*/
995
996static inline int
997netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
998{
999 int err = 0;
1000
1001 rtnl_lock();
1002 if (netif_running(netdev))
1003 err = __netxen_nic_up(adapter, netdev);
1004 rtnl_unlock();
1005
1006 return err;
1007}
1008
1009/* with rtnl_lock */
9f5bc7f1 1010static void
6f771419 1011__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
9f5bc7f1 1012{
db4cfd8a
DP		 1013 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1014 return;
1015
f2251f66
AKS		 1016 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1017 return;
6a581e93 1018
f2251f66 1019 smp_mb();
b2af9cb0 1020 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 1021 netif_carrier_off(netdev);
b2af9cb0 1022 netif_tx_disable(netdev);
9f5bc7f1
DP		 1023
1024 if (adapter->stop_port)
1025 adapter->stop_port(adapter);
1026
5cf4d323
DP		 1027 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1028 netxen_p3_free_mac_list(adapter);
1029
22b5794b
AKS		 1030 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1031
be339aee
DP		 1032 netxen_napi_disable(adapter);
1033
9f5bc7f1 1034 netxen_release_tx_buffers(adapter);
b2af9cb0 1035 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1036}
1037
6f771419
AKS		 1038/* Usage: During suspend and firmware recovery module */
1039
1040static inline void
1041netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1042{
1043 rtnl_lock();
1044 if (netif_running(netdev))
1045 __netxen_nic_down(adapter, netdev);
1046 rtnl_unlock();
1047
1048}
9f5bc7f1
DP		 1049
1050static int
1051netxen_nic_attach(struct netxen_adapter *adapter)
1052{
1053 struct net_device *netdev = adapter->netdev;
1054 struct pci_dev *pdev = adapter->pdev;
becf46a0 1055 int err, ring;
d8b100c5 1056 struct nx_host_rds_ring *rds_ring;
d877f1e3 1057 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1058
7042cd8f
AKS		 1059 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1060 return 0;
1061
9f5bc7f1 1062 err = netxen_init_firmware(adapter);
232e7d68
DP		 1063 if (err)
1064 return err;
1065
1066 err = netxen_napi_add(adapter, netdev);
1067 if (err)
1068 return err;
9f5bc7f1 1069
9f5bc7f1
DP		 1070 err = netxen_alloc_sw_resources(adapter);
1071 if (err) {
1072 printk(KERN_ERR "%s: Error in setting sw resources\n",
1073 netdev->name);
1074 return err;
1075 }
1076
9f5bc7f1
DP		 1077 err = netxen_alloc_hw_resources(adapter);
1078 if (err) {
1079 printk(KERN_ERR "%s: Error in setting hw resources\n",
1080 netdev->name);
1081 goto err_out_free_sw;
1082 }
1083
4f96b988 1084 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1085 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1086 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1087 crb_cmd_producer[adapter->portnum]);
1088 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1089 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1090
cb2107be
DP		 1091 tx_ring->producer = 0;
1092 tx_ring->sw_consumer = 0;
1093
1094 netxen_nic_update_cmd_producer(adapter, tx_ring);
1095 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1096 }
1097
d8b100c5
DP		 1098 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1099 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1100 netxen_post_rx_buffers(adapter, ring, rds_ring);
1101 }
9f5bc7f1
DP		 1102
1103 err = netxen_nic_request_irq(adapter);
1104 if (err) {
1105 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1106 netdev->name);
1107 goto err_out_free_rxbuf;
1108 }
1109
ca2ef330
DP		 1110 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1111 netxen_nic_init_coalesce_defaults(adapter);
1112
fa3ce355
NK		 1113 netxen_create_sysfs_entries(adapter);
1114
9f5bc7f1
DP		 1115 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1116 return 0;
1117
1118err_out_free_rxbuf:
1119 netxen_release_rx_buffers(adapter);
1120 netxen_free_hw_resources(adapter);
1121err_out_free_sw:
1122 netxen_free_sw_resources(adapter);
1123 return err;
1124}
1125
1126static void
1127netxen_nic_detach(struct netxen_adapter *adapter)
1128{
7042cd8f
AKS		 1129 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1130 return;
1131
fa3ce355
NK		 1132 netxen_remove_sysfs_entries(adapter);
1133
9f5bc7f1 1134 netxen_free_hw_resources(adapter);
cf981ffb 1135 netxen_release_rx_buffers(adapter);
be339aee 1136 netxen_nic_free_irq(adapter);
232e7d68 1137 netxen_napi_del(adapter);
9f5bc7f1
DP		 1138 netxen_free_sw_resources(adapter);
1139
1140 adapter->is_up = 0;
1141}
1142
7042cd8f
AKS		 1143int
1144netxen_nic_reset_context(struct netxen_adapter *adapter)
1145{
1146 int err = 0;
1147 struct net_device *netdev = adapter->netdev;
1148
6a581e93
DP		 1149 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1150 return -EBUSY;
1151
7042cd8f
AKS		 1152 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1153
6a581e93
DP		 1154 netif_device_detach(netdev);
1155
7042cd8f 1156 if (netif_running(netdev))
6f771419 1157 __netxen_nic_down(adapter, netdev);
7042cd8f
AKS		 1158
1159 netxen_nic_detach(adapter);
1160
6a581e93
DP		 1161 if (netif_running(netdev)) {
1162 err = netxen_nic_attach(adapter);
1163 if (!err)
6f771419 1164 err = __netxen_nic_up(adapter, netdev);
7042cd8f 1165
6a581e93
DP		 1166 if (err)
1167 goto done;
1168 }
1169
1170 netif_device_attach(netdev);
7042cd8f 1171 }
6a581e93 1172
7042cd8f 1173done:
6a581e93 1174 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1175 return err;
1176}
1177
f17443f4
DP		 1178static int
1179netxen_setup_netdev(struct netxen_adapter *adapter,
1180 struct net_device *netdev)
1181{
1182 int err = 0;
1183 struct pci_dev *pdev = adapter->pdev;
1184
1185 adapter->rx_csum = 1;
1186 adapter->mc_enabled = 0;
1187 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1188 adapter->max_mc_count = 38;
1189 else
1190 adapter->max_mc_count = 16;
1191
1192 netdev->netdev_ops = &netxen_netdev_ops;
1193 netdev->watchdog_timeo = 2*HZ;
1194
1195 netxen_nic_change_mtu(netdev, netdev->mtu);
1196
1197 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1198
1199 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1200 netdev->features |= (NETIF_F_GRO);
1201 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1202
1203 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1204 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1205 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1206 }
1207
1208 if (adapter->pci_using_dac) {
1209 netdev->features |= NETIF_F_HIGHDMA;
1210 netdev->vlan_features |= NETIF_F_HIGHDMA;
1211 }
1212
028afe71
DP		 1213 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1214 netdev->features |= (NETIF_F_HW_VLAN_TX);
1215
1bb482f8
NK		 1216 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1217 netdev->features |= NETIF_F_LRO;
1218
f17443f4
DP		 1219 netdev->irq = adapter->msix_entries[0].vector;
1220
74c520da 1221 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1222
1223 if (netxen_read_mac_addr(adapter))
1224 dev_warn(&pdev->dev, "failed to read mac addr\n");
1225
1226 netif_carrier_off(netdev);
1227 netif_stop_queue(netdev);
1228
1229 err = register_netdev(netdev);
1230 if (err) {
1231 dev_err(&pdev->dev, "failed to register net device\n");
1232 return err;
1233 }
1234
1235 return 0;
1236}
1237
3d396eb1
AK		 1238static int __devinit
1239netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1240{
1241 struct net_device *netdev = NULL;
1242 struct netxen_adapter *adapter = NULL;
2956640d 1243 int i = 0, err;
3176ff3e 1244 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1245 uint8_t revision_id;
3d396eb1 1246
11d89d63 1247 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
c25c0b9b 1248 pr_warning("%s: chip revisions between 0x%x-0x%x"
11d89d63 1249 "will not be enabled.\n",
c25c0b9b 1250 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
11d89d63
DP		 1251 return -ENODEV;
1252 }
1253
3d396eb1
AK		 1254 if ((err = pci_enable_device(pdev)))
1255 return err;
2956640d 1256
3d396eb1
AK		 1257 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1258 err = -ENODEV;
1259 goto err_out_disable_pdev;
1260 }
1261
1262 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1263 goto err_out_disable_pdev;
1264
1265 pci_set_master(pdev);
3176ff3e
MT		 1266
1267 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1268 if(!netdev) {
f17443f4
DP		 1269 dev_err(&pdev->dev, "failed to allocate net_device\n");
1270 err = -ENOMEM;
3176ff3e
MT		 1271 goto err_out_free_res;
1272 }
1273
3176ff3e
MT		 1274 SET_NETDEV_DEV(netdev, &pdev->dev);
1275
4cf1653a 1276 adapter = netdev_priv(netdev);
2956640d
DP		 1277 adapter->netdev = netdev;
1278 adapter->pdev = pdev;
13ba9c77 1279 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1280
1281 revision_id = pdev->revision;
1282 adapter->ahw.revision_id = revision_id;
1283
f03b0ebd
DP		 1284 rwlock_init(&adapter->ahw.crb_lock);
1285 spin_lock_init(&adapter->ahw.mem_lock);
1286
d8b100c5 1287 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1288 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1289
97daee83
DP		 1290 err = netxen_setup_pci_map(adapter);
1291 if (err)
6c80b18d 1292 goto err_out_free_netdev;
3d396eb1 1293
2d1a3bbd 1294 /* This will be reset for mezz cards */
3176ff3e 1295 adapter->portnum = pci_func_id;
3176ff3e 1296
f17443f4
DP		 1297 err = netxen_nic_get_board_info(adapter);
1298 if (err) {
1299 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1300 goto err_out_iounmap;
1301 }
6c80b18d 1302
13ba9c77 1303 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1304 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1305 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1306 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1307 if (pci_func_id >= 2)
13ba9c77 1308 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1309 break;
1310 default:
1311 break;
1312 }
13ba9c77 1313
6a581e93 1314 err = netxen_start_firmware(adapter);
0b72e659 1315 if (err)
8f9b3f69 1316 goto err_out_decr_ref;
f17443f4 1317
3d396eb1 1318 /*
6c80b18d 1319 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1320 */
dcd56fdb 1321 adapter->physical_port = adapter->portnum;
4f96b988 1322 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1323 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1324 if (i != 0x55555555)
1325 adapter->physical_port = i;
1326 }
6c80b18d 1327
6a581e93 1328 netxen_nic_clear_stats(adapter);
2956640d 1329
97daee83 1330 netxen_setup_intr(adapter);
2956640d 1331
f17443f4 1332 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1333 if (err)
2956640d 1334 goto err_out_disable_msi;
6c80b18d
MT		 1335
1336 pci_set_drvdata(pdev, adapter);
3d396eb1 1337
6a581e93
DP		 1338 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1339
1e2d0059 1340 switch (adapter->ahw.port_type) {
2956640d
DP		 1341 case NETXEN_NIC_GBE:
1342 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1343 adapter->netdev->name);
1344 break;
1345 case NETXEN_NIC_XGBE:
1346 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1347 adapter->netdev->name);
1348 break;
3d396eb1 1349 }
3d396eb1 1350
70f9cf89
DP		 1351 netxen_create_diag_entries(adapter);
1352
2956640d
DP		 1353 return 0;
1354
1355err_out_disable_msi:
97daee83 1356 netxen_teardown_intr(adapter);
6c80b18d 1357
83ac51fa 1358 netxen_free_dummy_dma(adapter);
3d396eb1 1359
8f9b3f69 1360err_out_decr_ref:
6a581e93
DP		 1361 nx_decr_dev_ref_cnt(adapter);
1362
2956640d 1363err_out_iounmap:
97daee83 1364 netxen_cleanup_pci_map(adapter);
cb8011ad 1365
6c80b18d
MT		 1366err_out_free_netdev:
1367 free_netdev(netdev);
1368
1369err_out_free_res:
3d396eb1 1370 pci_release_regions(pdev);
6c80b18d
MT		 1371
1372err_out_disable_pdev:
2956640d 1373 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1374 pci_disable_device(pdev);
1375 return err;
1376}
1377
1378static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1379{
1380 struct netxen_adapter *adapter;
3176ff3e 1381 struct net_device *netdev;
3d396eb1 1382
6c80b18d 1383 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1384 if (adapter == NULL)
1385 return;
1386
6c80b18d
MT		 1387 netdev = adapter->netdev;
1388
6a581e93
DP		 1389 netxen_cancel_fw_work(adapter);
1390
96acb6eb
DP		 1391 unregister_netdev(netdev);
1392
e424fa9d
AKS		 1393 cancel_work_sync(&adapter->tx_timeout_task);
1394
7042cd8f 1395 netxen_nic_detach(adapter);
3d396eb1 1396
6a581e93
DP		 1397 nx_decr_dev_ref_cnt(adapter);
1398
439b454e 1399 if (adapter->portnum == 0)
83ac51fa 1400 netxen_free_dummy_dma(adapter);
96acb6eb 1401
6a581e93
DP		 1402 clear_bit(__NX_RESETTING, &adapter->state);
1403
97daee83 1404 netxen_teardown_intr(adapter);
3052246c 1405
70f9cf89
DP		 1406 netxen_remove_diag_entries(adapter);
1407
97daee83 1408 netxen_cleanup_pci_map(adapter);
595e3fb8 1409
f7185c71
DP		 1410 netxen_release_firmware(adapter);
1411
595e3fb8 1412 pci_release_regions(pdev);
3052246c 1413 pci_disable_device(pdev);
595e3fb8
MT		 1414 pci_set_drvdata(pdev, NULL);
1415
6c80b18d 1416 free_netdev(netdev);
3d396eb1 1417}
22b5794b 1418static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1419{
0b72e659
DP		 1420 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1421 struct net_device *netdev = adapter->netdev;
22b5794b 1422 int retval;
0b72e659
DP		 1423
1424 netif_device_detach(netdev);
1425
6a581e93
DP		 1426 netxen_cancel_fw_work(adapter);
1427
0b72e659
DP		 1428 if (netif_running(netdev))
1429 netxen_nic_down(adapter, netdev);
1430
e424fa9d
AKS		 1431 cancel_work_sync(&adapter->tx_timeout_task);
1432
7042cd8f 1433 netxen_nic_detach(adapter);
0b72e659 1434
22b5794b
AKS		 1435 if (adapter->portnum == 0)
1436 netxen_free_dummy_dma(adapter);
1437
6a581e93
DP		 1438 nx_decr_dev_ref_cnt(adapter);
1439
1440 clear_bit(__NX_RESETTING, &adapter->state);
1441
22b5794b
AKS		 1442 retval = pci_save_state(pdev);
1443 if (retval)
1444 return retval;
0b72e659
DP		 1445
1446 if (netxen_nic_wol_supported(adapter)) {
1447 pci_enable_wake(pdev, PCI_D3cold, 1);
1448 pci_enable_wake(pdev, PCI_D3hot, 1);
1449 }
1450
0b72e659
DP		 1451 return 0;
1452}
22b5794b
AKS		 1453static void netxen_nic_shutdown(struct pci_dev *pdev)
1454{
1455 if (__netxen_nic_shutdown(pdev))
1456 return;
bc86fcba
AKS		 1457
1458 pci_disable_device(pdev);
22b5794b
AKS		 1459}
1460#ifdef CONFIG_PM
1461static int
1462netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1463{
1464 int retval;
1465
1466 retval = __netxen_nic_shutdown(pdev);
1467 if (retval)
1468 return retval;
1469
1470 pci_set_power_state(pdev, pci_choose_state(pdev, state));
bc86fcba
AKS		 1471
1472 pci_disable_device(pdev);
22b5794b
AKS		 1473 return 0;
1474}
0b72e659
DP		 1475
1476static int
1477netxen_nic_resume(struct pci_dev *pdev)
1478{
1479 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1480 struct net_device *netdev = adapter->netdev;
1481 int err;
1482
0b72e659
DP		 1483 err = pci_enable_device(pdev);
1484 if (err)
1485 return err;
1486
bc86fcba
AKS		 1487 pci_set_power_state(pdev, PCI_D0);
1488 pci_set_master(pdev);
1489 pci_restore_state(pdev);
1490
907fa120 1491 adapter->ahw.crb_win = -1;
47abe356 1492 adapter->ahw.ocm_win = -1;
0b72e659 1493
6a581e93 1494 err = netxen_start_firmware(adapter);
0b72e659
DP		 1495 if (err) {
1496 dev_err(&pdev->dev, "failed to start firmware\n");
1497 return err;
1498 }
1499
1500 if (netif_running(netdev)) {
1501 err = netxen_nic_attach(adapter);
1502 if (err)
6a581e93 1503 goto err_out;
0b72e659
DP		 1504
1505 err = netxen_nic_up(adapter, netdev);
1506 if (err)
6a581e93 1507 goto err_out_detach;
0b72e659 1508
d0725e4d 1509 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1510 }
1511
bc86fcba 1512 netif_device_attach(netdev);
6a581e93 1513 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1514 return 0;
6a581e93
DP		 1515
1516err_out_detach:
1517 netxen_nic_detach(adapter);
1518err_out:
1519 nx_decr_dev_ref_cnt(adapter);
1520 return err;
0b72e659 1521}
01542cd1 1522#endif
0b72e659 1523
3d396eb1
AK		 1524static int netxen_nic_open(struct net_device *netdev)
1525{
4cf1653a 1526 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1527 int err = 0;
3d396eb1 1528
dcd56fdb
DP		 1529 if (adapter->driver_mismatch)
1530 return -EIO;
1531
7042cd8f
AKS		 1532 err = netxen_nic_attach(adapter);
1533 if (err)
1534 return err;
2956640d 1535
6f771419 1536 err = __netxen_nic_up(adapter, netdev);
9f5bc7f1
DP		 1537 if (err)
1538 goto err_out;
05aaa02d 1539
dcd56fdb 1540 netif_start_queue(netdev);
3d396eb1
AK		 1541
1542 return 0;
2956640d 1543
9f5bc7f1
DP		 1544err_out:
1545 netxen_nic_detach(adapter);
2956640d 1546 return err;
3d396eb1
AK		 1547}
1548
1549/*
1550 * netxen_nic_close - Disables a network interface entry point
1551 */
1552static int netxen_nic_close(struct net_device *netdev)
1553{
3176ff3e 1554 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1555
6f771419 1556 __netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1557 return 0;
1558}
1559
1bcfd790
DP		 1560static void
1561netxen_tso_check(struct net_device *netdev,
1562 struct nx_host_tx_ring *tx_ring,
1563 struct cmd_desc_type0 *first_desc,
1564 struct sk_buff *skb)
cd1f8160 1565{
391587c3 1566 u8 opcode = TX_ETHER_PKT;
cdff1036 1567 __be16 protocol = skb->protocol;
028afe71 1568 u16 flags = 0, vid = 0;
1bcfd790 1569 u32 producer;
028afe71 1570 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1571 struct cmd_desc_type0 *hwdesc;
028afe71 1572 struct vlan_ethhdr *vh;
cdff1036 1573
09640e63 1574 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1575
1576 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1577 protocol = vh->h_vlan_encapsulated_proto;
1578 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1579
1580 } else if (vlan_tx_tag_present(skb)) {
1581
1582 flags = FLAGS_VLAN_OOB;
1583 vid = vlan_tx_tag_get(skb);
1584 netxen_set_tx_vlan_tci(first_desc, vid);
1585 vlan_oob = 1;
cdff1036 1586 }
cd1f8160 1587
391587c3
DP		 1588 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1589 skb_shinfo(skb)->gso_size > 0) {
1590
1bcfd790
DP		 1591 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1592
1593 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1594 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1595 if (vlan_oob) {
1596 first_desc->total_hdr_length += VLAN_HLEN;
1597 first_desc->tcp_hdr_offset = VLAN_HLEN;
1598 first_desc->ip_hdr_offset = VLAN_HLEN;
1599 /* Only in case of TSO on vlan device */
1600 flags |= FLAGS_VLAN_TAGGED;
1601 }
391587c3 1602
09640e63 1603 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1604 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1605 tso = 1;
cd1f8160
DP		 1606
1607 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1608 u8 l4proto;
1609
09640e63 1610 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1611 l4proto = ip_hdr(skb)->protocol;
1612
1613 if (l4proto == IPPROTO_TCP)
1614 opcode = TX_TCP_PKT;
1615 else if(l4proto == IPPROTO_UDP)
1616 opcode = TX_UDP_PKT;
09640e63 1617 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1618 l4proto = ipv6_hdr(skb)->nexthdr;
1619
1620 if (l4proto == IPPROTO_TCP)
1621 opcode = TX_TCPV6_PKT;
1622 else if(l4proto == IPPROTO_UDP)
1623 opcode = TX_UDPV6_PKT;
1624 }
cd1f8160 1625 }
028afe71
DP		 1626
1627 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1628 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1629 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1630
1631 if (!tso)
1632 return;
1633
1634 /* For LSO, we need to copy the MAC/IP/TCP headers into
1635 * the descriptor ring
1636 */
1637 producer = tx_ring->producer;
1638 copied = 0;
1639 offset = 2;
1640
028afe71
DP		 1641 if (vlan_oob) {
1642 /* Create a TSO vlan header template for firmware */
1643
1644 hwdesc = &tx_ring->desc_head[producer];
1645 tx_ring->cmd_buf_arr[producer].skb = NULL;
1646
1647 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1648 hdr_len + VLAN_HLEN);
1649
1650 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1651 skb_copy_from_linear_data(skb, vh, 12);
1652 vh->h_vlan_proto = htons(ETH_P_8021Q);
1653 vh->h_vlan_TCI = htons(vid);
1654 skb_copy_from_linear_data_offset(skb, 12,
1655 (char *)vh + 16, copy_len - 16);
1656
545eb370 1657 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1658 offset = 0;
1659
1660 producer = get_next_index(producer, tx_ring->num_desc);
1661 }
1662
1bcfd790
DP		 1663 while (copied < hdr_len) {
1664
1665 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1666 (hdr_len - copied));
1667
1668 hwdesc = &tx_ring->desc_head[producer];
1669 tx_ring->cmd_buf_arr[producer].skb = NULL;
1670
1671 skb_copy_from_linear_data_offset(skb, copied,
1672 (char *)hwdesc + offset, copy_len);
1673
1674 copied += copy_len;
1675 offset = 0;
1676
1677 producer = get_next_index(producer, tx_ring->num_desc);
1678 }
1679
1680 tx_ring->producer = producer;
1681 barrier();
cd1f8160
DP		 1682}
1683
ce644ed4
DP		 1684static int
1685netxen_map_tx_skb(struct pci_dev *pdev,
1686 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1687{
ce644ed4
DP		 1688 struct netxen_skb_frag *nf;
1689 struct skb_frag_struct *frag;
1690 int i, nr_frags;
1691 dma_addr_t map;
1692
1693 nr_frags = skb_shinfo(skb)->nr_frags;
1694 nf = &pbuf->frag_array[0];
1695
1696 map = pci_map_single(pdev, skb->data,
1697 skb_headlen(skb), PCI_DMA_TODEVICE);
1698 if (pci_dma_mapping_error(pdev, map))
1699 goto out_err;
6f703406 1700
ce644ed4
DP		 1701 nf->dma = map;
1702 nf->length = skb_headlen(skb);
1703
1704 for (i = 0; i < nr_frags; i++) {
1705 frag = &skb_shinfo(skb)->frags[i];
1706 nf = &pbuf->frag_array[i+1];
1707
1708 map = pci_map_page(pdev, frag->page, frag->page_offset,
1709 frag->size, PCI_DMA_TODEVICE);
1710 if (pci_dma_mapping_error(pdev, map))
1711 goto unwind;
1712
1713 nf->dma = map;
1714 nf->length = frag->size;
1715 }
1716
1717 return 0;
6f703406 1718
ce644ed4 1719unwind:
cf503e8f
DP		 1720 while (--i >= 0) {
1721 nf = &pbuf->frag_array[i+1];
ce644ed4 1722 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1723 }
ce644ed4
DP		 1724
1725 nf = &pbuf->frag_array[0];
1726 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1727
1728out_err:
1729 return -ENOMEM;
6f703406
DP		 1730}
1731
d32cc3d2
DP		 1732static inline void
1733netxen_clear_cmddesc(u64 *desc)
1734{
1bcfd790
DP		 1735 desc[0] = 0ULL;
1736 desc[2] = 0ULL;
d32cc3d2
DP		 1737}
1738
61357325 1739static netdev_tx_t
d32cc3d2 1740netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1741{
3176ff3e 1742 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1743 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1744 struct netxen_cmd_buffer *pbuf;
3d396eb1 1745 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1746 struct cmd_desc_type0 *hwdesc, *first_desc;
1747 struct pci_dev *pdev;
391587c3 1748 int i, k;
3d396eb1 1749
cb2107be 1750 u32 producer;
ce644ed4 1751 int frag_count, no_of_desc;
d877f1e3 1752 u32 num_txd = tx_ring->num_desc;
3d396eb1 1753
3d396eb1
AK		 1754 frag_count = skb_shinfo(skb)->nr_frags + 1;
1755
d877f1e3 1756 /* 4 fragments per cmd des */
3d396eb1 1757 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1758
fa9859ef 1759 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
ba53e6b4 1760 netif_stop_queue(netdev);
ba53e6b4 1761 return NETDEV_TX_BUSY;
53a01e00 1762 }
3d396eb1 1763
cb2107be 1764 producer = tx_ring->producer;
ce644ed4 1765 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1766
1bcfd790 1767 pdev = adapter->pdev;
391587c3 1768
ce644ed4 1769 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1770 goto drop_packet;
391587c3 1771
3d396eb1 1772 pbuf->skb = skb;
3d396eb1 1773 pbuf->frag_count = frag_count;
6f703406 1774
1bcfd790
DP		 1775 first_desc = hwdesc = &tx_ring->desc_head[producer];
1776 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1777
ce644ed4
DP		 1778 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1779 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1780
ce644ed4 1781 for (i = 0; i < frag_count; i++) {
3d396eb1 1782
ce644ed4
DP		 1783 k = i % 4;
1784
1785 if ((k == 0) && (i > 0)) {
1786 /* move to next desc.*/
ba53e6b4 1787 producer = get_next_index(producer, num_txd);
d877f1e3 1788 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1789 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1790 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1791 }
3d396eb1 1792
ce644ed4 1793 buffrag = &pbuf->frag_array[i];
3d396eb1 1794
ce644ed4 1795 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1796 switch (k) {
1797 case 0:
ce644ed4 1798 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1799 break;
1800 case 1:
ce644ed4 1801 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1802 break;
1803 case 2:
ce644ed4 1804 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1805 break;
1806 case 3:
ce644ed4 1807 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1808 break;
1809 }
3d396eb1 1810 }
ce644ed4 1811
1bcfd790 1812 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1813
1bcfd790 1814 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1815
cb2107be 1816 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1817
1bcfd790 1818 adapter->stats.txbytes += skb->len;
ba53e6b4 1819 adapter->stats.xmitcalled++;
3d396eb1 1820
3d396eb1 1821 return NETDEV_TX_OK;
6f703406
DP		 1822
1823drop_packet:
1824 adapter->stats.txdropped++;
1825 dev_kfree_skb_any(skb);
1826 return NETDEV_TX_OK;
3d396eb1
AK		 1827}
1828
a97342f9
DP		 1829static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1830{
1831 struct net_device *netdev = adapter->netdev;
1832 uint32_t temp, temp_state, temp_val;
1833 int rv = 0;
1834
f98a9f69 1835 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1836
1837 temp_state = nx_get_temp_state(temp);
1838 temp_val = nx_get_temp_val(temp);
1839
1840 if (temp_state == NX_TEMP_PANIC) {
1841 printk(KERN_ALERT
1842 "%s: Device temperature %d degrees C exceeds"
1843 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1844 netdev->name, temp_val);
a97342f9
DP		 1845 rv = 1;
1846 } else if (temp_state == NX_TEMP_WARN) {
1847 if (adapter->temp == NX_TEMP_NORMAL) {
1848 printk(KERN_ALERT
1849 "%s: Device temperature %d degrees C "
1850 "exceeds operating range."
1851 " Immediate action needed.\n",
e4135c2d 1852 netdev->name, temp_val);
a97342f9
DP		 1853 }
1854 } else {
1855 if (adapter->temp == NX_TEMP_WARN) {
1856 printk(KERN_INFO
1857 "%s: Device temperature is now %d degrees C"
e4135c2d 1858 " in normal range.\n", netdev->name,
a97342f9
DP		 1859 temp_val);
1860 }
1861 }
1862 adapter->temp = temp_state;
1863 return rv;
1864}
1865
3bf26ce3 1866void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1867{
1868 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1869
1870 if (adapter->ahw.linkup && !linkup) {
1871 printk(KERN_INFO "%s: %s NIC Link is down\n",
1872 netxen_nic_driver_name, netdev->name);
1873 adapter->ahw.linkup = 0;
1874 if (netif_running(netdev)) {
1875 netif_carrier_off(netdev);
1876 netif_stop_queue(netdev);
1877 }
e424fa9d 1878 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1879 } else if (!adapter->ahw.linkup && linkup) {
1880 printk(KERN_INFO "%s: %s NIC Link is up\n",
1881 netxen_nic_driver_name, netdev->name);
1882 adapter->ahw.linkup = 1;
1883 if (netif_running(netdev)) {
1884 netif_carrier_on(netdev);
1885 netif_wake_queue(netdev);
1886 }
e424fa9d 1887 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1888 }
1889}
1890
3bf26ce3
DP		 1891static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1892{
1893 u32 val, port, linkup;
1894
1895 port = adapter->physical_port;
1896
1897 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1898 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1899 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1900 linkup = (val == XG_LINK_UP_P3);
1901 } else {
f98a9f69 1902 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1903 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1904 linkup = (val >> port) & 1;
1905 else {
1906 val = (val >> port*8) & 0xff;
1907 linkup = (val == XG_LINK_UP);
1908 }
1909 }
1910
1911 netxen_advert_link_change(adapter, linkup);
1912}
1913
3d396eb1
AK		 1914static void netxen_tx_timeout(struct net_device *netdev)
1915{
e424fa9d 1916 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1917
6a581e93
DP		 1918 if (test_bit(__NX_RESETTING, &adapter->state))
1919 return;
1920
f17443f4 1921 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1922 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1923}
1924
74c520da 1925static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 1926{
4790654c 1927 struct netxen_adapter *adapter =
3176ff3e 1928 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1929
b2af9cb0
DP		 1930 if (!netif_running(adapter->netdev))
1931 return;
1932
74c520da 1933 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 1934 return;
1935
74c520da
AKS		 1936 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1937 goto request_reset;
1938
1939 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1940 /* try to scrub interrupt */
1941 netxen_napi_disable(adapter);
ba53e6b4 1942
74c520da 1943 adapter->netdev->trans_start = jiffies;
ba53e6b4 1944
74c520da
AKS		 1945 netxen_napi_enable(adapter);
1946
1947 netif_wake_queue(adapter->netdev);
1948
a598ae17 1949 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1950
1951 } else {
a598ae17 1952 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1953 if (!netxen_nic_reset_context(adapter)) {
1954 adapter->netdev->trans_start = jiffies;
a598ae17 1955 return;
74c520da
AKS		 1956 }
1957
1958 /* context reset failed, fall through for fw reset */
1959 }
1960
1961request_reset:
1962 adapter->need_fw_reset = 1;
ff8a306d 1963 clear_bit(__NX_RESETTING, &adapter->state);
3d396eb1
AK		 1964}
1965
a97342f9
DP		 1966struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1967{
1968 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 1969 struct net_device_stats *stats = &netdev->stats;
a97342f9
DP		 1970
1971 memset(stats, 0, sizeof(*stats));
1972
1bb482f8 1973 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1974 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1975 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1976 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1977 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1978 stats->tx_dropped = adapter->stats.txdropped;
1979
1980 return stats;
1981}
1982
e4c93c81 1983static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1984{
d8b100c5
DP		 1985 struct nx_host_sds_ring *sds_ring = data;
1986 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1987 u32 status = 0;
1988
195c5f98 1989 status = readl(adapter->isr_int_vec);
d71e1be8 1990
195c5f98 1991 if (!(status & adapter->int_vec_bit))
05aaa02d 1992 return IRQ_NONE;
e01872af 1993
195c5f98 1994 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 1995 /* check interrupt state machine, to be sure */
195c5f98 1996 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 1997 if (!ISR_LEGACY_INT_TRIGGERED(status))
1998 return IRQ_NONE;
1999
092bc571
DP		 2000 } else {
2001 unsigned long our_int = 0;
d71e1be8 2002
195c5f98 2003 our_int = readl(adapter->crb_int_state_reg);
092bc571 2004
d71e1be8 2005 /* not our interrupt */
092bc571 2006 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 2007 return IRQ_NONE;
2008
092bc571 2009 /* claim interrupt */
195c5f98 2010 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 2011
195c5f98 2012 /* clear interrupt */
d8b100c5 2013 netxen_nic_disable_int(sds_ring);
195c5f98 2014 }
092bc571 2015
195c5f98 2016 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2017 /* read twice to ensure write is flushed */
195c5f98
AKS		 2018 readl(adapter->isr_int_vec);
2019 readl(adapter->isr_int_vec);
092bc571 2020
d8b100c5 2021 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 2022
2023 return IRQ_HANDLED;
2024}
2025
e4c93c81 2026static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 2027{
d8b100c5
DP		 2028 struct nx_host_sds_ring *sds_ring = data;
2029 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 2030
092bc571 2031 /* clear interrupt */
195c5f98 2032 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 2033
d8b100c5 2034 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 2035 return IRQ_HANDLED;
2036}
2037
b3df68f8
DP		 2038static irqreturn_t netxen_msix_intr(int irq, void *data)
2039{
d8b100c5 2040 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 2041
d8b100c5 2042 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2043 return IRQ_HANDLED;
2044}
2045
bea3348e 2046static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2047{
d8b100c5
DP		 2048 struct nx_host_sds_ring *sds_ring =
2049 container_of(napi, struct nx_host_sds_ring, napi);
2050
2051 struct netxen_adapter *adapter = sds_ring->adapter;
2052
05aaa02d 2053 int tx_complete;
bea3348e 2054 int work_done;
3d396eb1 2055
05aaa02d 2056 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2057
d8b100c5 2058 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2059
05aaa02d 2060 if ((work_done < budget) && tx_complete) {
d8b100c5 2061 napi_complete(&sds_ring->napi);
f2251f66 2062 if (test_bit(__NX_DEV_UP, &adapter->state))
b2af9cb0 2063 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2064 }
2065
bea3348e 2066 return work_done;
3d396eb1
AK		 2067}
2068
2069#ifdef CONFIG_NET_POLL_CONTROLLER
2070static void netxen_nic_poll_controller(struct net_device *netdev)
2071{
3176ff3e 2072 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 2073 disable_irq(adapter->irq);
1494a814 2074 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 2075 enable_irq(adapter->irq);
2076}
2077#endif
3d396eb1 2078
6a581e93
DP		 2079static int
2080nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2081{
2082 int count;
2083 if (netxen_api_lock(adapter))
2084 return -EIO;
2085
2086 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2087
2088 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2089
2090 netxen_api_unlock(adapter);
2091 return count;
2092}
2093
2094static int
2095nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2096{
2097 int count;
2098 if (netxen_api_lock(adapter))
2099 return -EIO;
2100
2101 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2102 WARN_ON(count == 0);
2103
2104 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2105
2106 if (count == 0)
2107 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2108
2109 netxen_api_unlock(adapter);
2110 return count;
2111}
2112
74c520da
AKS		 2113static void
2114nx_dev_request_reset(struct netxen_adapter *adapter)
2115{
2116 u32 state;
2117
2118 if (netxen_api_lock(adapter))
2119 return;
2120
2121 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2122
2123 if (state != NX_DEV_INITALIZING)
2124 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2125
2126 netxen_api_unlock(adapter);
2127}
2128
6a581e93
DP		 2129static int
2130netxen_can_start_firmware(struct netxen_adapter *adapter)
2131{
2132 int count;
2133 int can_start = 0;
2134
2135 if (netxen_api_lock(adapter))
2136 return 0;
2137
2138 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2139
2140 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2141 count = 0;
2142
2143 if (count == 0) {
2144 can_start = 1;
2145 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2146 }
2147
2148 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2149
2150 netxen_api_unlock(adapter);
2151
2152 return can_start;
2153}
2154
2155static void
2156netxen_schedule_work(struct netxen_adapter *adapter,
2157 work_func_t func, int delay)
2158{
2159 INIT_DELAYED_WORK(&adapter->fw_work, func);
2160 schedule_delayed_work(&adapter->fw_work, delay);
2161}
2162
2163static void
2164netxen_cancel_fw_work(struct netxen_adapter *adapter)
2165{
2166 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2167 msleep(10);
2168
2169 cancel_delayed_work_sync(&adapter->fw_work);
2170}
2171
2172static void
2173netxen_attach_work(struct work_struct *work)
2174{
2175 struct netxen_adapter *adapter = container_of(work,
2176 struct netxen_adapter, fw_work.work);
2177 struct net_device *netdev = adapter->netdev;
2178 int err = 0;
2179
2180 if (netif_running(netdev)) {
2181 err = netxen_nic_attach(adapter);
2182 if (err)
2183 goto done;
2184
2185 err = netxen_nic_up(adapter, netdev);
2186 if (err) {
2187 netxen_nic_detach(adapter);
2188 goto done;
2189 }
2190
d0725e4d 2191 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2192 }
2193
2194 netif_device_attach(netdev);
2195
2196done:
2197 adapter->fw_fail_cnt = 0;
2198 clear_bit(__NX_RESETTING, &adapter->state);
2199 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2200}
2201
2202static void
2203netxen_fwinit_work(struct work_struct *work)
2204{
2205 struct netxen_adapter *adapter = container_of(work,
2206 struct netxen_adapter, fw_work.work);
2207 int dev_state;
2208
2209 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2210
2211 switch (dev_state) {
2212 case NX_DEV_COLD:
2213 case NX_DEV_READY:
74c520da
AKS		 2214 if (!netxen_start_firmware(adapter)) {
2215 netxen_schedule_work(adapter, netxen_attach_work, 0);
2216 return;
2217 }
2218 break;
6a581e93
DP		 2219
2220 case NX_DEV_INITALIZING:
2221 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2222 netxen_schedule_work(adapter,
2223 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2224 return;
2225 }
6a581e93
DP		 2226
2227 case NX_DEV_FAILED:
2228 default:
8f9b3f69 2229 nx_incr_dev_ref_cnt(adapter);
6a581e93
DP		 2230 break;
2231 }
2232
6a581e93
DP		 2233 clear_bit(__NX_RESETTING, &adapter->state);
2234}
2235
2236static void
2237netxen_detach_work(struct work_struct *work)
2238{
2239 struct netxen_adapter *adapter = container_of(work,
2240 struct netxen_adapter, fw_work.work);
2241 struct net_device *netdev = adapter->netdev;
2242 int ref_cnt, delay;
2243 u32 status;
2244
2245 netif_device_detach(netdev);
2246
6f771419 2247 netxen_nic_down(adapter, netdev);
6a581e93
DP		 2248
2249 netxen_nic_detach(adapter);
2250
2251 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2252
6a581e93 2253 if (status & NX_RCODE_FATAL_ERROR)
8f9b3f69 2254 goto err_ret;
6a581e93
DP		 2255
2256 if (adapter->temp == NX_TEMP_PANIC)
8f9b3f69
AKS		 2257 goto err_ret;
2258
2259 ref_cnt = nx_decr_dev_ref_cnt(adapter);
6a581e93
DP		 2260
2261 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2262
2263 adapter->fw_wait_cnt = 0;
2264 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
8f9b3f69
AKS		 2265
2266 return;
2267
2268err_ret:
2269 clear_bit(__NX_RESETTING, &adapter->state);
6a581e93
DP		 2270}
2271
2272static int
2273netxen_check_health(struct netxen_adapter *adapter)
2274{
2275 u32 state, heartbit;
2276 struct net_device *netdev = adapter->netdev;
2277
2278 if (netxen_nic_check_temp(adapter))
2279 goto detach;
2280
74c520da
AKS		 2281 if (adapter->need_fw_reset) {
2282 nx_dev_request_reset(adapter);
2283 goto detach;
2284 }
2285
6a581e93
DP		 2286 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2287 if (state == NX_DEV_NEED_RESET)
2288 goto detach;
2289
2290 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2291 return 0;
2292
2293 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2294 if (heartbit != adapter->heartbit) {
2295 adapter->heartbit = heartbit;
2296 adapter->fw_fail_cnt = 0;
2297 return 0;
2298 }
2299
2300 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2301 return 0;
2302
2303 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2304
2305 dev_info(&netdev->dev, "firmware hang detected\n");
2306
2307detach:
caa2dd53
NK		 2308 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2309 !test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 2310 netxen_schedule_work(adapter, netxen_detach_work, 0);
2311 return 1;
2312}
2313
2314static void
2315netxen_fw_poll_work(struct work_struct *work)
2316{
2317 struct netxen_adapter *adapter = container_of(work,
2318 struct netxen_adapter, fw_work.work);
2319
2320 if (test_bit(__NX_RESETTING, &adapter->state))
2321 goto reschedule;
2322
2323 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2324 if (!adapter->has_link_events) {
2325
2326 netxen_nic_handle_phy_intr(adapter);
2327
2328 if (adapter->link_changed)
2329 netxen_nic_set_link_parameters(adapter);
2330 }
2331 }
2332
2333 if (netxen_check_health(adapter))
2334 return;
2335
2336reschedule:
2337 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2338}
2339
fa3ce355
NK		 2340static ssize_t
2341netxen_store_bridged_mode(struct device *dev,
2342 struct device_attribute *attr, const char *buf, size_t len)
2343{
2344 struct net_device *net = to_net_dev(dev);
2345 struct netxen_adapter *adapter = netdev_priv(net);
2346 unsigned long new;
2347 int ret = -EINVAL;
2348
2349 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2350 goto err_out;
2351
2352 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2353 goto err_out;
2354
2355 if (strict_strtoul(buf, 2, &new))
2356 goto err_out;
2357
2358 if (!netxen_config_bridged_mode(adapter, !!new))
2359 ret = len;
2360
2361err_out:
2362 return ret;
2363}
2364
2365static ssize_t
2366netxen_show_bridged_mode(struct device *dev,
2367 struct device_attribute *attr, char *buf)
2368{
2369 struct net_device *net = to_net_dev(dev);
2370 struct netxen_adapter *adapter;
2371 int bridged_mode = 0;
2372
2373 adapter = netdev_priv(net);
2374
2375 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2376 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2377
2378 return sprintf(buf, "%d\n", bridged_mode);
2379}
2380
2381static struct device_attribute dev_attr_bridged_mode = {
2382 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2383 .show = netxen_show_bridged_mode,
2384 .store = netxen_store_bridged_mode,
2385};
2386
70f9cf89
DP		 2387static ssize_t
2388netxen_store_diag_mode(struct device *dev,
2389 struct device_attribute *attr, const char *buf, size_t len)
2390{
2391 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2392 unsigned long new;
2393
2394 if (strict_strtoul(buf, 2, &new))
2395 return -EINVAL;
2396
2397 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2398 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2399
2400 return len;
2401}
2402
2403static ssize_t
2404netxen_show_diag_mode(struct device *dev,
2405 struct device_attribute *attr, char *buf)
2406{
2407 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2408
2409 return sprintf(buf, "%d\n",
2410 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2411}
2412
2413static struct device_attribute dev_attr_diag_mode = {
2414 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2415 .show = netxen_show_diag_mode,
2416 .store = netxen_store_diag_mode,
2417};
2418
2419static int
2420netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2421 loff_t offset, size_t size)
2422{
2423 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2424 return -EIO;
2425
2426 if ((size != 4) || (offset & 0x3))
2427 return -EINVAL;
2428
2429 if (offset < NETXEN_PCI_CRBSPACE)
2430 return -EINVAL;
2431
2432 return 0;
2433}
2434
2435static ssize_t
2436netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2437 char *buf, loff_t offset, size_t size)
2438{
2439 struct device *dev = container_of(kobj, struct device, kobj);
2440 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2441 u32 data;
2442 int ret;
2443
2444 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2445 if (ret != 0)
2446 return ret;
2447
2448 data = NXRD32(adapter, offset);
2449 memcpy(buf, &data, size);
2450 return size;
2451}
2452
2453static ssize_t
2454netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2455 char *buf, loff_t offset, size_t size)
2456{
2457 struct device *dev = container_of(kobj, struct device, kobj);
2458 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2459 u32 data;
2460 int ret;
2461
2462 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2463 if (ret != 0)
2464 return ret;
2465
2466 memcpy(&data, buf, size);
2467 NXWR32(adapter, offset, data);
2468 return size;
2469}
2470
2471static int
2472netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2473 loff_t offset, size_t size)
2474{
2475 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2476 return -EIO;
2477
2478 if ((size != 8) || (offset & 0x7))
2479 return -EIO;
2480
2481 return 0;
2482}
2483
2484static ssize_t
2485netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2486 char *buf, loff_t offset, size_t size)
2487{
2488 struct device *dev = container_of(kobj, struct device, kobj);
2489 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2490 u64 data;
2491 int ret;
2492
2493 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2494 if (ret != 0)
2495 return ret;
2496
2497 if (adapter->pci_mem_read(adapter, offset, &data))
2498 return -EIO;
2499
2500 memcpy(buf, &data, size);
2501
2502 return size;
2503}
2504
2505ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2506 struct bin_attribute *attr, char *buf,
2507 loff_t offset, size_t size)
2508{
2509 struct device *dev = container_of(kobj, struct device, kobj);
2510 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2511 u64 data;
2512 int ret;
2513
2514 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2515 if (ret != 0)
2516 return ret;
2517
2518 memcpy(&data, buf, size);
2519
2520 if (adapter->pci_mem_write(adapter, offset, data))
2521 return -EIO;
2522
2523 return size;
2524}
2525
2526
2527static struct bin_attribute bin_attr_crb = {
2528 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2529 .size = 0,
2530 .read = netxen_sysfs_read_crb,
2531 .write = netxen_sysfs_write_crb,
2532};
2533
2534static struct bin_attribute bin_attr_mem = {
2535 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2536 .size = 0,
2537 .read = netxen_sysfs_read_mem,
2538 .write = netxen_sysfs_write_mem,
2539};
2540
caa2dd53 2541
fa3ce355
NK		 2542static void
2543netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2544{
2545 struct net_device *netdev = adapter->netdev;
2546 struct device *dev = &netdev->dev;
2547
2548 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2549 /* bridged_mode control */
2550 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2551 dev_warn(&netdev->dev,
2552 "failed to create bridged_mode sysfs entry\n");
2553 }
2554 }
2555}
2556
2557static void
2558netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2559{
2560 struct net_device *netdev = adapter->netdev;
2561 struct device *dev = &netdev->dev;
2562
2563 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2564 device_remove_file(dev, &dev_attr_bridged_mode);
2565}
2566
70f9cf89
DP		 2567static void
2568netxen_create_diag_entries(struct netxen_adapter *adapter)
2569{
2570 struct pci_dev *pdev = adapter->pdev;
2571 struct device *dev;
2572
2573 dev = &pdev->dev;
2574 if (device_create_file(dev, &dev_attr_diag_mode))
2575 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2576 if (device_create_bin_file(dev, &bin_attr_crb))
2577 dev_info(dev, "failed to create crb sysfs entry\n");
2578 if (device_create_bin_file(dev, &bin_attr_mem))
2579 dev_info(dev, "failed to create mem sysfs entry\n");
2580}
2581
2582
2583static void
2584netxen_remove_diag_entries(struct netxen_adapter *adapter)
2585{
2586 struct pci_dev *pdev = adapter->pdev;
2587 struct device *dev = &pdev->dev;
2588
2589 device_remove_file(dev, &dev_attr_diag_mode);
2590 device_remove_bin_file(dev, &bin_attr_crb);
2591 device_remove_bin_file(dev, &bin_attr_mem);
2592}
2593
044824d9
DP		 2594#ifdef CONFIG_INET
2595
6598b169
DP		 2596#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2597
2598static int
2599netxen_destip_supported(struct netxen_adapter *adapter)
2600{
2601 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2602 return 0;
2603
2604 if (adapter->ahw.cut_through)
2605 return 0;
2606
2607 return 1;
2608}
2609
d0725e4d
AKS		 2610static void
2611netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2612{
2613 struct in_device *indev;
2614 struct netxen_adapter *adapter = netdev_priv(dev);
2615
3db76755 2616 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2617 return;
2618
2619 indev = in_dev_get(dev);
2620 if (!indev)
2621 return;
2622
2623 for_ifa(indev) {
2624 switch (event) {
2625 case NETDEV_UP:
2626 netxen_config_ipaddr(adapter,
2627 ifa->ifa_address, NX_IP_UP);
2628 break;
2629 case NETDEV_DOWN:
2630 netxen_config_ipaddr(adapter,
2631 ifa->ifa_address, NX_IP_DOWN);
2632 break;
2633 default:
2634 break;
2635 }
2636 } endfor_ifa(indev);
2637
2638 in_dev_put(indev);
2639 return;
2640}
2641
6598b169
DP		 2642static int netxen_netdev_event(struct notifier_block *this,
2643 unsigned long event, void *ptr)
2644{
2645 struct netxen_adapter *adapter;
2646 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2647
2648recheck:
2649 if (dev == NULL)
2650 goto done;
2651
2652 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2653 dev = vlan_dev_real_dev(dev);
2654 goto recheck;
2655 }
2656
2657 if (!is_netxen_netdev(dev))
2658 goto done;
2659
2660 adapter = netdev_priv(dev);
2661
d0725e4d 2662 if (!adapter)
6598b169
DP		 2663 goto done;
2664
2665 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2666 goto done;
2667
d0725e4d 2668 netxen_config_indev_addr(dev, event);
6598b169
DP		 2669done:
2670 return NOTIFY_DONE;
2671}
2672
2673static int
2674netxen_inetaddr_event(struct notifier_block *this,
2675 unsigned long event, void *ptr)
2676{
2677 struct netxen_adapter *adapter;
2678 struct net_device *dev;
2679
2680 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2681
2682 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2683
2684recheck:
2685 if (dev == NULL || !netif_running(dev))
2686 goto done;
2687
2688 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2689 dev = vlan_dev_real_dev(dev);
2690 goto recheck;
2691 }
2692
2693 if (!is_netxen_netdev(dev))
2694 goto done;
2695
2696 adapter = netdev_priv(dev);
2697
2698 if (!adapter || !netxen_destip_supported(adapter))
2699 goto done;
2700
2701 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2702 goto done;
2703
2704 switch (event) {
2705 case NETDEV_UP:
2706 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2707 break;
2708 case NETDEV_DOWN:
2709 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2710 break;
2711 default:
2712 break;
2713 }
2714
2715done:
2716 return NOTIFY_DONE;
2717}
2718
2719static struct notifier_block netxen_netdev_cb = {
2720 .notifier_call = netxen_netdev_event,
2721};
2722
2723static struct notifier_block netxen_inetaddr_cb = {
2724 .notifier_call = netxen_inetaddr_event,
2725};
9feae56c
RD		 2726#else
2727static void
2728netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2729{ }
044824d9 2730#endif
6598b169 2731
3d396eb1
AK		 2732static struct pci_driver netxen_driver = {
2733 .name = netxen_nic_driver_name,
2734 .id_table = netxen_pci_tbl,
2735 .probe = netxen_nic_probe,
0b72e659 2736 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2737#ifdef CONFIG_PM
0b72e659 2738 .suspend = netxen_nic_suspend,
22b5794b 2739 .resume = netxen_nic_resume,
01542cd1 2740#endif
22b5794b 2741 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2742};
2743
3d396eb1
AK		 2744static int __init netxen_init_module(void)
2745{
ff4fbd43
DP		 2746 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2747
044824d9 2748#ifdef CONFIG_INET
6598b169
DP		 2749 register_netdevice_notifier(&netxen_netdev_cb);
2750 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2751#endif
184231bd 2752 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2753}
2754
2755module_init(netxen_init_module);
2756
2757static void __exit netxen_exit_module(void)
2758{
3d396eb1 2759 pci_unregister_driver(&netxen_driver);
6598b169 2760
044824d9 2761#ifdef CONFIG_INET
6598b169
DP		 2762 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2763 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2764#endif
3d396eb1
AK		 2765}
2766
2767module_exit(netxen_exit_module);
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