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netxen: 128 memory controller support
[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>
1494a814 37
3d396eb1
AK		 38MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
39MODULE_LICENSE("GPL");
40MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
41
ceded32f 42char netxen_nic_driver_name[] = "netxen_nic";
3d396eb1 43static char netxen_nic_driver_string[] = "NetXen Network Driver version "
cb8011ad 44 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 45
2956640d
DP		 46static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
47
48/* Default to restricted 1G auto-neg mode */
49static int wol_port_mode = 5;
50
51static int use_msi = 1;
52
53static int use_msi_x = 1;
54
3d396eb1
AK		 55/* Local functions to NetXen NIC driver */
56static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 57 const struct pci_device_id *ent);
3d396eb1
AK		 58static void __devexit netxen_nic_remove(struct pci_dev *pdev);
59static int netxen_nic_open(struct net_device *netdev);
60static int netxen_nic_close(struct net_device *netdev);
61357325
SH		 61static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
62 struct net_device *);
3d396eb1 63static void netxen_tx_timeout(struct net_device *netdev);
74c520da 64static void netxen_tx_timeout_task(struct work_struct *work);
6a581e93
DP		 65static void netxen_fw_poll_work(struct work_struct *work);
66static void netxen_schedule_work(struct netxen_adapter *adapter,
67 work_func_t func, int delay);
68static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
bea3348e 69static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 70#ifdef CONFIG_NET_POLL_CONTROLLER
71static void netxen_nic_poll_controller(struct net_device *netdev);
72#endif
fa3ce355
NK		 73
74static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
75static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
70f9cf89
DP		 76static void netxen_create_diag_entries(struct netxen_adapter *adapter);
77static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
fa3ce355 78
6a581e93
DP		 79static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
80static int netxen_can_start_firmware(struct netxen_adapter *adapter);
81
1494a814 82static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 83static irqreturn_t netxen_msi_intr(int irq, void *data);
b3df68f8 84static irqreturn_t netxen_msix_intr(int irq, void *data);
3d396eb1 85
d0725e4d
AKS		 86static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
87
3d396eb1 88/* PCI Device ID Table */
70081ac5 89#define ENTRY(device) \
040dec3b 90 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 91 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
92
3d396eb1 93static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 94 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
95 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
96 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
97 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
98 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
99 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
100 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
101 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 102 {0,}
103};
104
105MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
106
7830b22c
DP		 107static uint32_t crb_cmd_producer[4] = {
108 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
109 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
110};
111
c9fc891f 112void
3ce06a32 113netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
cb2107be 114 struct nx_host_tx_ring *tx_ring)
3176ff3e 115{
195c5f98 116 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
cb2107be
DP		 117
118 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
119 netif_stop_queue(adapter->netdev);
120 smp_mb();
121 }
3176ff3e
MT		 122}
123
7830b22c
DP		 124static uint32_t crb_cmd_consumer[4] = {
125 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
126 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
127};
128
3ce06a32
DP		 129static inline void
130netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
cb2107be 131 struct nx_host_tx_ring *tx_ring)
3176ff3e 132{
195c5f98 133 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
3176ff3e
MT		 134}
135
2956640d 136static uint32_t msi_tgt_status[8] = {
443be796 137 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 138 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
139 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
140 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 141};
142
2956640d
DP		 143static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
144
d8b100c5 145static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 146{
d8b100c5
DP		 147 struct netxen_adapter *adapter = sds_ring->adapter;
148
195c5f98 149 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
4638aef1
SH		 150}
151
d8b100c5 152static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
4638aef1 153{
d8b100c5
DP		 154 struct netxen_adapter *adapter = sds_ring->adapter;
155
195c5f98 156 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
4638aef1 157
092bc571 158 if (!NETXEN_IS_MSI_FAMILY(adapter))
195c5f98 159 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
4638aef1
SH		 160}
161
71dcddbd
DP		 162static int
163netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
164{
165 int size = sizeof(struct nx_host_sds_ring) * count;
166
167 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
168
169 return (recv_ctx->sds_rings == NULL);
170}
171
d8b100c5 172static void
71dcddbd
DP		 173netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
174{
175 if (recv_ctx->sds_rings != NULL)
176 kfree(recv_ctx->sds_rings);
232e7d68
DP		 177
178 recv_ctx->sds_rings = NULL;
71dcddbd
DP		 179}
180
181static int
d8b100c5
DP		 182netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
183{
184 int ring;
185 struct nx_host_sds_ring *sds_ring;
186 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
187
71dcddbd 188 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
f17443f4 189 return -ENOMEM;
71dcddbd 190
d8b100c5
DP		 191 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
192 sds_ring = &recv_ctx->sds_rings[ring];
193 netif_napi_add(netdev, &sds_ring->napi,
194 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
195 }
71dcddbd
DP		 196
197 return 0;
d8b100c5
DP		 198}
199
232e7d68
DP		 200static void
201netxen_napi_del(struct netxen_adapter *adapter)
202{
203 int ring;
204 struct nx_host_sds_ring *sds_ring;
205 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
206
207 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
208 sds_ring = &recv_ctx->sds_rings[ring];
209 netif_napi_del(&sds_ring->napi);
210 }
211
212 netxen_free_sds_rings(&adapter->recv_ctx);
213}
214
d8b100c5
DP		 215static void
216netxen_napi_enable(struct netxen_adapter *adapter)
217{
218 int ring;
219 struct nx_host_sds_ring *sds_ring;
220 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
221
222 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
223 sds_ring = &recv_ctx->sds_rings[ring];
224 napi_enable(&sds_ring->napi);
225 netxen_nic_enable_int(sds_ring);
226 }
227}
228
229static void
230netxen_napi_disable(struct netxen_adapter *adapter)
231{
232 int ring;
233 struct nx_host_sds_ring *sds_ring;
234 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
235
236 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
237 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 238 netxen_nic_disable_int(sds_ring);
b2af9cb0
DP		 239 napi_synchronize(&sds_ring->napi);
240 napi_disable(&sds_ring->napi);
d8b100c5
DP		 241 }
242}
243
50c643e7 244static int nx_set_dma_mask(struct netxen_adapter *adapter)
2956640d
DP		 245{
246 struct pci_dev *pdev = adapter->pdev;
1f434f63
DP		 247 uint64_t mask, cmask;
248
249 adapter->pci_using_dac = 0;
2956640d 250
6afd142f 251 mask = DMA_BIT_MASK(32);
6afd142f 252 cmask = DMA_BIT_MASK(32);
1f434f63 253
50c643e7 254 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1f434f63 255#ifndef CONFIG_IA64
6afd142f 256 mask = DMA_BIT_MASK(35);
1f434f63 257#endif
50c643e7
DP		 258 } else {
259 mask = DMA_BIT_MASK(39);
260 cmask = mask;
261 }
262
2956640d 263 if (pci_set_dma_mask(pdev, mask) == 0 &&
1f434f63 264 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
2956640d
DP		 265 adapter->pci_using_dac = 1;
266 return 0;
267 }
2956640d 268
1f434f63
DP		 269 return -EIO;
270}
271
272/* Update addressable range if firmware supports it */
273static int
274nx_update_dma_mask(struct netxen_adapter *adapter)
275{
276 int change, shift, err;
50c643e7 277 uint64_t mask, old_mask, old_cmask;
1f434f63
DP		 278 struct pci_dev *pdev = adapter->pdev;
279
280 change = 0;
281
f98a9f69 282 shift = NXRD32(adapter, CRB_DMA_SHIFT);
f60f7856 283 if (shift > 32)
1f434f63
DP		 284 return 0;
285
286 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
287 change = 1;
288 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
289 change = 1;
290
291 if (change) {
292 old_mask = pdev->dma_mask;
50c643e7
DP		 293 old_cmask = pdev->dev.coherent_dma_mask;
294
f60f7856 295 mask = DMA_BIT_MASK(32+shift);
1f434f63
DP		 296
297 err = pci_set_dma_mask(pdev, mask);
298 if (err)
50c643e7
DP		 299 goto err_out;
300
301 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
302
303 err = pci_set_consistent_dma_mask(pdev, mask);
304 if (err)
305 goto err_out;
306 }
307 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
2956640d
DP		 308 }
309
2956640d 310 return 0;
50c643e7
DP		 311
312err_out:
313 pci_set_dma_mask(pdev, old_mask);
314 pci_set_consistent_dma_mask(pdev, old_cmask);
315 return err;
2956640d
DP		 316}
317
2956640d
DP		 318static int
319netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
320{
27c915a4 321 u32 val, timeout;
2956640d
DP		 322
323 if (first_boot == 0x55555555) {
324 /* This is the first boot after power up */
f98a9f69 325 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
27c915a4
DP		 326
327 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
328 return 0;
2956640d
DP		 329
330 /* PCI bus master workaround */
f98a9f69 331 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 332 if (!(first_boot & 0x4)) {
333 first_boot |= 0x4;
f98a9f69
DP		 334 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
2956640d
DP		 336 }
337
338 /* This is the first boot after power up */
f98a9f69 339 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
2956640d
DP		 340 if (first_boot != 0x80000f) {
341 /* clear the register for future unloads/loads */
f98a9f69 342 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
27c915a4 343 return -EIO;
2956640d
DP		 344 }
345
27c915a4 346 /* Start P2 boot loader */
f98a9f69
DP		 347 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
348 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
27c915a4
DP		 349 timeout = 0;
350 do {
351 msleep(1);
f98a9f69 352 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
27c915a4
DP		 353
354 if (++timeout > 5000)
355 return -EIO;
356
357 } while (val == NETXEN_BDINFO_MAGIC);
2956640d 358 }
27c915a4 359 return 0;
2956640d
DP		 360}
361
362static void netxen_set_port_mode(struct netxen_adapter *adapter)
363{
364 u32 val, data;
365
1e2d0059 366 val = adapter->ahw.board_type;
2956640d
DP		 367 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
368 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
369 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
370 data = NETXEN_PORT_MODE_802_3_AP;
f98a9f69 371 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 372 } else if (port_mode == NETXEN_PORT_MODE_XG) {
373 data = NETXEN_PORT_MODE_XG;
f98a9f69 374 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 375 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
376 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
f98a9f69 377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 378 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
379 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
f98a9f69 380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 381 } else {
382 data = NETXEN_PORT_MODE_AUTO_NEG;
f98a9f69 383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
2956640d
DP		 384 }
385
386 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
387 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
388 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
389 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
390 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
391 }
f98a9f69 392 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
2956640d
DP		 393 }
394}
395
2956640d
DP		 396static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
397{
398 u32 control;
399 int pos;
400
401 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
402 if (pos) {
403 pci_read_config_dword(pdev, pos, &control);
404 if (enable)
405 control |= PCI_MSIX_FLAGS_ENABLE;
406 else
407 control = 0;
408 pci_write_config_dword(pdev, pos, control);
409 }
410}
411
be339aee 412static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
2956640d
DP		 413{
414 int i;
415
be339aee 416 for (i = 0; i < count; i++)
2956640d
DP		 417 adapter->msix_entries[i].entry = i;
418}
419
9dc28efe
DP		 420static int
421netxen_read_mac_addr(struct netxen_adapter *adapter)
422{
423 int i;
424 unsigned char *p;
425 __le64 mac_addr;
9dc28efe
DP		 426 struct net_device *netdev = adapter->netdev;
427 struct pci_dev *pdev = adapter->pdev;
428
9dc28efe
DP		 429 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
430 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
431 return -EIO;
432 } else {
433 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
434 return -EIO;
435 }
436
437 p = (unsigned char *)&mac_addr;
438 for (i = 0; i < 6; i++)
439 netdev->dev_addr[i] = *(p + 5 - i);
440
441 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
442
443 /* set station address */
444
e174961c
JB		 445 if (!is_valid_ether_addr(netdev->perm_addr))
446 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
9dc28efe
DP		 447
448 return 0;
449}
450
3d0a3cc9
DP		 451int netxen_nic_set_mac(struct net_device *netdev, void *p)
452{
453 struct netxen_adapter *adapter = netdev_priv(netdev);
454 struct sockaddr *addr = p;
455
456 if (!is_valid_ether_addr(addr->sa_data))
457 return -EINVAL;
458
459 if (netif_running(netdev)) {
460 netif_device_detach(netdev);
461 netxen_napi_disable(adapter);
462 }
463
464 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
465 adapter->macaddr_set(adapter, addr->sa_data);
466
467 if (netif_running(netdev)) {
468 netif_device_attach(netdev);
469 netxen_napi_enable(adapter);
470 }
471 return 0;
472}
473
1abd266f
SH		 474static void netxen_set_multicast_list(struct net_device *dev)
475{
476 struct netxen_adapter *adapter = netdev_priv(dev);
477
3d0a3cc9 478 adapter->set_multi(dev);
1abd266f
SH		 479}
480
481static const struct net_device_ops netxen_netdev_ops = {
482 .ndo_open = netxen_nic_open,
483 .ndo_stop = netxen_nic_close,
484 .ndo_start_xmit = netxen_nic_xmit_frame,
485 .ndo_get_stats = netxen_nic_get_stats,
486 .ndo_validate_addr = eth_validate_addr,
487 .ndo_set_multicast_list = netxen_set_multicast_list,
488 .ndo_set_mac_address = netxen_nic_set_mac,
489 .ndo_change_mtu = netxen_nic_change_mtu,
490 .ndo_tx_timeout = netxen_tx_timeout,
491#ifdef CONFIG_NET_POLL_CONTROLLER
492 .ndo_poll_controller = netxen_nic_poll_controller,
493#endif
494};
495
97daee83
DP		 496static void
497netxen_setup_intr(struct netxen_adapter *adapter)
498{
499 struct netxen_legacy_intr_set *legacy_intrp;
500 struct pci_dev *pdev = adapter->pdev;
be339aee
DP		 501 int err, num_msix;
502
503 if (adapter->rss_supported) {
504 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
505 MSIX_ENTRIES_PER_ADAPTER : 2;
506 } else
507 num_msix = 1;
508
509 adapter->max_sds_rings = 1;
97daee83
DP		 510
511 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
97daee83
DP		 512
513 if (adapter->ahw.revision_id >= NX_P3_B0)
514 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
515 else
516 legacy_intrp = &legacy_intr[0];
195c5f98
AKS		 517
518 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
519 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
520 legacy_intrp->tgt_status_reg);
521 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
522 legacy_intrp->tgt_mask_reg);
523 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
524 legacy_intrp->pci_int_reg);
525 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
526
527 if (adapter->ahw.revision_id >= NX_P3_B1)
528 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
529 ISR_INT_STATE_REG);
530 else
531 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
532 CRB_INT_VECTOR);
97daee83
DP		 533
534 netxen_set_msix_bit(pdev, 0);
535
536 if (adapter->msix_supported) {
537
be339aee
DP		 538 netxen_init_msix_entries(adapter, num_msix);
539 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
540 if (err == 0) {
541 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
542 netxen_set_msix_bit(pdev, 1);
97daee83 543
be339aee
DP		 544 if (adapter->rss_supported)
545 adapter->max_sds_rings = num_msix;
97daee83 546
be339aee
DP		 547 dev_info(&pdev->dev, "using msi-x interrupts\n");
548 return;
549 }
550
551 if (err > 0)
552 pci_disable_msix(pdev);
553
554 /* fall through for msi */
97daee83 555 }
be339aee
DP		 556
557 if (use_msi && !pci_enable_msi(pdev)) {
558 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
195c5f98
AKS		 559 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
560 msi_tgt_status[adapter->ahw.pci_func]);
be339aee 561 dev_info(&pdev->dev, "using msi interrupts\n");
f67f3408 562 adapter->msix_entries[0].vector = pdev->irq;
be339aee
DP		 563 return;
564 }
565
566 dev_info(&pdev->dev, "using legacy interrupts\n");
567 adapter->msix_entries[0].vector = pdev->irq;
97daee83
DP		 568}
569
570static void
571netxen_teardown_intr(struct netxen_adapter *adapter)
572{
573 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
574 pci_disable_msix(adapter->pdev);
575 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
576 pci_disable_msi(adapter->pdev);
577}
578
579static void
580netxen_cleanup_pci_map(struct netxen_adapter *adapter)
581{
582 if (adapter->ahw.db_base != NULL)
583 iounmap(adapter->ahw.db_base);
584 if (adapter->ahw.pci_base0 != NULL)
585 iounmap(adapter->ahw.pci_base0);
586 if (adapter->ahw.pci_base1 != NULL)
587 iounmap(adapter->ahw.pci_base1);
588 if (adapter->ahw.pci_base2 != NULL)
589 iounmap(adapter->ahw.pci_base2);
590}
591
592static int
593netxen_setup_pci_map(struct netxen_adapter *adapter)
594{
595 void __iomem *mem_ptr0 = NULL;
596 void __iomem *mem_ptr1 = NULL;
597 void __iomem *mem_ptr2 = NULL;
598 void __iomem *db_ptr = NULL;
599
71fb62fb
DP		 600 resource_size_t mem_base, db_base;
601 unsigned long mem_len, db_len = 0, pci_len0 = 0;
97daee83
DP		 602
603 struct pci_dev *pdev = adapter->pdev;
604 int pci_func = adapter->ahw.pci_func;
605
606 int err = 0;
607
608 /*
609 * Set the CRB window to invalid. If any register in window 0 is
610 * accessed it should set the window to 0 and then reset it to 1.
611 */
907fa120 612 adapter->ahw.crb_win = -1;
47abe356 613 adapter->ahw.ocm_win = -1;
97daee83
DP		 614
615 /* remap phys address */
616 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
617 mem_len = pci_resource_len(pdev, 0);
97daee83 618
97daee83
DP		 619 /* 128 Meg of memory */
620 if (mem_len == NETXEN_PCI_128MB_SIZE) {
621 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
622 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
623 SECOND_PAGE_GROUP_SIZE);
624 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
625 THIRD_PAGE_GROUP_SIZE);
47abe356 626 pci_len0 = FIRST_PAGE_GROUP_SIZE;
97daee83
DP		 627 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
628 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
629 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
630 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
97daee83 631 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
97daee83
DP		 632
633 mem_ptr0 = pci_ioremap_bar(pdev, 0);
634 if (mem_ptr0 == NULL) {
635 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
636 return -EIO;
637 }
638 pci_len0 = mem_len;
97daee83
DP		 639 } else {
640 return -EIO;
641 }
642
195c5f98
AKS		 643 netxen_setup_hwops(adapter);
644
97daee83
DP		 645 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
646
647 adapter->ahw.pci_base0 = mem_ptr0;
648 adapter->ahw.pci_len0 = pci_len0;
97daee83
DP		 649 adapter->ahw.pci_base1 = mem_ptr1;
650 adapter->ahw.pci_base2 = mem_ptr2;
651
47abe356
DP		 652 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
653 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
654 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
655 }
656
97daee83
DP		 657 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
658 goto skip_doorbell;
659
660 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
661 db_len = pci_resource_len(pdev, 4);
662
663 if (db_len == 0) {
664 printk(KERN_ERR "%s: doorbell is disabled\n",
665 netxen_nic_driver_name);
666 err = -EIO;
667 goto err_out;
668 }
669
670 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
671 if (!db_ptr) {
672 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
673 netxen_nic_driver_name);
674 err = -EIO;
675 goto err_out;
676 }
677
678skip_doorbell:
679 adapter->ahw.db_base = db_ptr;
680 adapter->ahw.db_len = db_len;
681 return 0;
682
683err_out:
684 netxen_cleanup_pci_map(adapter);
685 return err;
686}
687
2b9e62ee
DP		 688static void
689netxen_check_options(struct netxen_adapter *adapter)
690{
691 u32 fw_major, fw_minor, fw_build;
692 char brd_name[NETXEN_MAX_SHORT_NAME];
693 char serial_num[32];
694 int i, offset, val;
695 int *ptr32;
696 struct pci_dev *pdev = adapter->pdev;
697
698 adapter->driver_mismatch = 0;
699
700 ptr32 = (int *)&serial_num;
701 offset = NX_FW_SERIAL_NUM_OFFSET;
702 for (i = 0; i < 8; i++) {
703 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
704 dev_err(&pdev->dev, "error reading board info\n");
705 adapter->driver_mismatch = 1;
706 return;
707 }
708 ptr32[i] = cpu_to_le32(val);
709 offset += sizeof(u32);
710 }
711
712 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
713 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
714 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
715
716 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
717
718 if (adapter->portnum == 0) {
719 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
720
721 printk(KERN_INFO "NetXen %s Board S/N %s Chip rev 0x%x\n",
722 brd_name, serial_num, adapter->ahw.revision_id);
723 }
724
725 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
726 adapter->driver_mismatch = 1;
727 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
728 fw_major, fw_minor, fw_build);
729 return;
730 }
731
732 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
733 i = NXRD32(adapter, NETXEN_SRE_MISC);
734 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
735 }
736
737 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
738 fw_major, fw_minor, fw_build,
739 adapter->ahw.cut_through ? "cut-through" : "legacy");
740
741 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
742 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
743
744 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
745
746 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
747 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
748 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
749 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
750 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
751 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
752 }
753
754 adapter->msix_supported = 0;
755 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
756 adapter->msix_supported = !!use_msi_x;
757 adapter->rss_supported = !!use_msi_x;
758 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
759 switch (adapter->ahw.board_type) {
760 case NETXEN_BRDTYPE_P2_SB31_10G:
761 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
762 adapter->msix_supported = !!use_msi_x;
763 adapter->rss_supported = !!use_msi_x;
764 break;
765 default:
766 break;
767 }
768 }
769
770 adapter->num_txd = MAX_CMD_DESCRIPTORS;
771
772 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
773 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
774 adapter->max_rds_rings = 3;
775 } else {
776 adapter->num_lro_rxd = 0;
777 adapter->max_rds_rings = 2;
778 }
779}
780
ba599d4f 781static int
6a581e93 782netxen_start_firmware(struct netxen_adapter *adapter)
ba599d4f
DP		 783{
784 int val, err, first_boot;
785 struct pci_dev *pdev = adapter->pdev;
786
2b9e62ee
DP		 787 /* required for NX2031 dummy dma */
788 err = nx_set_dma_mask(adapter);
789 if (err)
790 return err;
791
6a581e93 792 if (!netxen_can_start_firmware(adapter))
96f2ebd2 793 goto wait_init;
0b72e659 794
f98a9f69 795 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
ba599d4f
DP		 796
797 err = netxen_check_hw_init(adapter, first_boot);
798 if (err) {
799 dev_err(&pdev->dev, "error in init HW init sequence\n");
800 return err;
801 }
802
6a581e93 803 netxen_request_firmware(adapter);
f7185c71 804
67c38fc6 805 err = netxen_need_fw_reset(adapter);
1dbc84a7 806 if (err < 0)
db4cfd8a 807 goto err_out;
1dbc84a7 808 if (err == 0)
ec5c50cb 809 goto ready;
67c38fc6 810
ba599d4f 811 if (first_boot != 0x55555555) {
f98a9f69 812 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
ba599d4f
DP		 813 netxen_pinit_from_rom(adapter, 0);
814 msleep(1);
815 }
567c6c4e 816
f98a9f69 817 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
6a581e93
DP		 818 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
819 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
820
567c6c4e
DP		 821 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
822 netxen_set_port_mode(adapter);
823
db4cfd8a
DP		 824 err = netxen_load_firmware(adapter);
825 if (err)
826 goto err_out;
ba599d4f 827
6a581e93
DP		 828 netxen_release_firmware(adapter);
829
ba599d4f
DP		 830 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
831
832 /* Initialize multicast addr pool owners */
833 val = 0x7654;
1e2d0059 834 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
ba599d4f 835 val |= 0x0f000000;
f98a9f69 836 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
ba599d4f
DP		 837
838 }
839
83ac51fa 840 err = netxen_init_dummy_dma(adapter);
ba599d4f 841 if (err)
db4cfd8a 842 goto err_out;
ba599d4f
DP		 843
844 /*
845 * Tell the hardware our version number.
846 */
847 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
848 | ((_NETXEN_NIC_LINUX_MINOR << 8))
849 | (_NETXEN_NIC_LINUX_SUBVERSION);
f98a9f69 850 NXWR32(adapter, CRB_DRIVER_VERSION, val);
ba599d4f 851
ec5c50cb 852ready:
6a581e93
DP		 853 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
854
96f2ebd2 855wait_init:
ba599d4f
DP		 856 /* Handshake with the card before we register the devices. */
857 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
858 if (err) {
83ac51fa 859 netxen_free_dummy_dma(adapter);
db4cfd8a 860 goto err_out;
ba599d4f
DP		 861 }
862
68b3cae0
DP		 863 nx_update_dma_mask(adapter);
864
6a581e93 865 netxen_check_options(adapter);
68b3cae0 866
74c520da
AKS		 867 adapter->need_fw_reset = 0;
868
ec5c50cb 869 /* fall through and release firmware */
db4cfd8a
DP		 870
871err_out:
872 netxen_release_firmware(adapter);
873 return err;
ba599d4f
DP		 874}
875
9f5bc7f1
DP		 876static int
877netxen_nic_request_irq(struct netxen_adapter *adapter)
878{
879 irq_handler_t handler;
d8b100c5
DP		 880 struct nx_host_sds_ring *sds_ring;
881 int err, ring;
882
9f5bc7f1
DP		 883 unsigned long flags = IRQF_SAMPLE_RANDOM;
884 struct net_device *netdev = adapter->netdev;
d8b100c5 885 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
9f5bc7f1 886
9f5bc7f1
DP		 887 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
888 handler = netxen_msix_intr;
889 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
890 handler = netxen_msi_intr;
891 else {
892 flags |= IRQF_SHARED;
893 handler = netxen_intr;
894 }
895 adapter->irq = netdev->irq;
896
d8b100c5
DP		 897 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
898 sds_ring = &recv_ctx->sds_rings[ring];
be339aee 899 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
d8b100c5
DP		 900 err = request_irq(sds_ring->irq, handler,
901 flags, sds_ring->name, sds_ring);
902 if (err)
903 return err;
904 }
905
906 return 0;
907}
908
909static void
910netxen_nic_free_irq(struct netxen_adapter *adapter)
911{
912 int ring;
913 struct nx_host_sds_ring *sds_ring;
914
915 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
916
917 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
918 sds_ring = &recv_ctx->sds_rings[ring];
919 free_irq(sds_ring->irq, sds_ring);
920 }
9f5bc7f1
DP		 921}
922
ca2ef330
DP		 923static void
924netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
925{
926 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
927 adapter->coal.normal.data.rx_time_us =
928 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
929 adapter->coal.normal.data.rx_packets =
930 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
931 adapter->coal.normal.data.tx_time_us =
932 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
933 adapter->coal.normal.data.tx_packets =
934 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
935}
936
9f5bc7f1
DP		 937static int
938netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
939{
940 int err;
941
db4cfd8a
DP		 942 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
943 return -EIO;
944
9f5bc7f1
DP		 945 err = adapter->init_port(adapter, adapter->physical_port);
946 if (err) {
947 printk(KERN_ERR "%s: Failed to initialize port %d\n",
948 netxen_nic_driver_name, adapter->portnum);
949 return err;
950 }
3d0a3cc9
DP		 951 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
952 adapter->macaddr_set(adapter, netdev->dev_addr);
9f5bc7f1 953
3d0a3cc9
DP		 954 adapter->set_multi(netdev);
955 adapter->set_mtu(adapter, netdev->mtu);
9f5bc7f1
DP		 956
957 adapter->ahw.linkup = 0;
9f5bc7f1 958
d8b100c5
DP		 959 if (adapter->max_sds_rings > 1)
960 netxen_config_rss(adapter, 1);
9f5bc7f1 961
ca2ef330
DP		 962 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
963 netxen_config_intr_coalesce(adapter);
964
1bb482f8
NK		 965 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
966 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
967
b2af9cb0
DP		 968 netxen_napi_enable(adapter);
969
5103c9f7 970 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
3bf26ce3 971 netxen_linkevent_request(adapter, 1);
3d0a3cc9
DP		 972 else
973 netxen_nic_set_link_parameters(adapter);
974
6a581e93 975 set_bit(__NX_DEV_UP, &adapter->state);
9f5bc7f1
DP		 976 return 0;
977}
978
979static void
980netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
981{
db4cfd8a
DP		 982 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
983 return;
984
6a581e93
DP		 985 clear_bit(__NX_DEV_UP, &adapter->state);
986
b2af9cb0 987 spin_lock(&adapter->tx_clean_lock);
9f5bc7f1 988 netif_carrier_off(netdev);
b2af9cb0 989 netif_tx_disable(netdev);
9f5bc7f1
DP		 990
991 if (adapter->stop_port)
992 adapter->stop_port(adapter);
993
5cf4d323
DP		 994 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
995 netxen_p3_free_mac_list(adapter);
996
22b5794b
AKS		 997 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
998
be339aee
DP		 999 netxen_napi_disable(adapter);
1000
9f5bc7f1 1001 netxen_release_tx_buffers(adapter);
b2af9cb0 1002 spin_unlock(&adapter->tx_clean_lock);
9f5bc7f1
DP		 1003}
1004
1005
1006static int
1007netxen_nic_attach(struct netxen_adapter *adapter)
1008{
1009 struct net_device *netdev = adapter->netdev;
1010 struct pci_dev *pdev = adapter->pdev;
becf46a0 1011 int err, ring;
d8b100c5 1012 struct nx_host_rds_ring *rds_ring;
d877f1e3 1013 struct nx_host_tx_ring *tx_ring;
9f5bc7f1 1014
7042cd8f
AKS		 1015 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1016 return 0;
1017
9f5bc7f1 1018 err = netxen_init_firmware(adapter);
232e7d68
DP		 1019 if (err)
1020 return err;
1021
1022 err = netxen_napi_add(adapter, netdev);
1023 if (err)
1024 return err;
9f5bc7f1 1025
9f5bc7f1
DP		 1026 err = netxen_alloc_sw_resources(adapter);
1027 if (err) {
1028 printk(KERN_ERR "%s: Error in setting sw resources\n",
1029 netdev->name);
1030 return err;
1031 }
1032
9f5bc7f1
DP		 1033 err = netxen_alloc_hw_resources(adapter);
1034 if (err) {
1035 printk(KERN_ERR "%s: Error in setting hw resources\n",
1036 netdev->name);
1037 goto err_out_free_sw;
1038 }
1039
4f96b988 1040 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
4ea528a1 1041 tx_ring = adapter->tx_ring;
195c5f98
AKS		 1042 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1043 crb_cmd_producer[adapter->portnum]);
1044 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1045 crb_cmd_consumer[adapter->portnum]);
9f5bc7f1 1046
cb2107be
DP		 1047 tx_ring->producer = 0;
1048 tx_ring->sw_consumer = 0;
1049
1050 netxen_nic_update_cmd_producer(adapter, tx_ring);
1051 netxen_nic_update_cmd_consumer(adapter, tx_ring);
9f5bc7f1
DP		 1052 }
1053
d8b100c5
DP		 1054 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1055 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1056 netxen_post_rx_buffers(adapter, ring, rds_ring);
1057 }
9f5bc7f1
DP		 1058
1059 err = netxen_nic_request_irq(adapter);
1060 if (err) {
1061 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1062 netdev->name);
1063 goto err_out_free_rxbuf;
1064 }
1065
ca2ef330
DP		 1066 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1067 netxen_nic_init_coalesce_defaults(adapter);
1068
fa3ce355
NK		 1069 netxen_create_sysfs_entries(adapter);
1070
9f5bc7f1
DP		 1071 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1072 return 0;
1073
1074err_out_free_rxbuf:
1075 netxen_release_rx_buffers(adapter);
1076 netxen_free_hw_resources(adapter);
1077err_out_free_sw:
1078 netxen_free_sw_resources(adapter);
1079 return err;
1080}
1081
1082static void
1083netxen_nic_detach(struct netxen_adapter *adapter)
1084{
7042cd8f
AKS		 1085 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1086 return;
1087
fa3ce355
NK		 1088 netxen_remove_sysfs_entries(adapter);
1089
9f5bc7f1 1090 netxen_free_hw_resources(adapter);
cf981ffb 1091 netxen_release_rx_buffers(adapter);
be339aee 1092 netxen_nic_free_irq(adapter);
232e7d68 1093 netxen_napi_del(adapter);
9f5bc7f1
DP		 1094 netxen_free_sw_resources(adapter);
1095
1096 adapter->is_up = 0;
1097}
1098
7042cd8f
AKS		 1099int
1100netxen_nic_reset_context(struct netxen_adapter *adapter)
1101{
1102 int err = 0;
1103 struct net_device *netdev = adapter->netdev;
1104
6a581e93
DP		 1105 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1106 return -EBUSY;
1107
7042cd8f
AKS		 1108 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1109
6a581e93
DP		 1110 netif_device_detach(netdev);
1111
7042cd8f
AKS		 1112 if (netif_running(netdev))
1113 netxen_nic_down(adapter, netdev);
1114
1115 netxen_nic_detach(adapter);
1116
6a581e93
DP		 1117 if (netif_running(netdev)) {
1118 err = netxen_nic_attach(adapter);
1119 if (!err)
1120 err = netxen_nic_up(adapter, netdev);
7042cd8f 1121
6a581e93
DP		 1122 if (err)
1123 goto done;
1124 }
1125
1126 netif_device_attach(netdev);
7042cd8f 1127 }
6a581e93 1128
7042cd8f 1129done:
6a581e93 1130 clear_bit(__NX_RESETTING, &adapter->state);
7042cd8f
AKS		 1131 return err;
1132}
1133
f17443f4
DP		 1134static int
1135netxen_setup_netdev(struct netxen_adapter *adapter,
1136 struct net_device *netdev)
1137{
1138 int err = 0;
1139 struct pci_dev *pdev = adapter->pdev;
1140
1141 adapter->rx_csum = 1;
1142 adapter->mc_enabled = 0;
1143 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1144 adapter->max_mc_count = 38;
1145 else
1146 adapter->max_mc_count = 16;
1147
1148 netdev->netdev_ops = &netxen_netdev_ops;
1149 netdev->watchdog_timeo = 2*HZ;
1150
1151 netxen_nic_change_mtu(netdev, netdev->mtu);
1152
1153 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1154
1155 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1156 netdev->features |= (NETIF_F_GRO);
1157 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1158
1159 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1160 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1161 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1162 }
1163
1164 if (adapter->pci_using_dac) {
1165 netdev->features |= NETIF_F_HIGHDMA;
1166 netdev->vlan_features |= NETIF_F_HIGHDMA;
1167 }
1168
028afe71
DP		 1169 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1170 netdev->features |= (NETIF_F_HW_VLAN_TX);
1171
1bb482f8
NK		 1172 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1173 netdev->features |= NETIF_F_LRO;
1174
f17443f4
DP		 1175 netdev->irq = adapter->msix_entries[0].vector;
1176
74c520da 1177 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
f17443f4
DP		 1178
1179 if (netxen_read_mac_addr(adapter))
1180 dev_warn(&pdev->dev, "failed to read mac addr\n");
1181
1182 netif_carrier_off(netdev);
1183 netif_stop_queue(netdev);
1184
1185 err = register_netdev(netdev);
1186 if (err) {
1187 dev_err(&pdev->dev, "failed to register net device\n");
1188 return err;
1189 }
1190
1191 return 0;
1192}
1193
3d396eb1
AK		 1194static int __devinit
1195netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1196{
1197 struct net_device *netdev = NULL;
1198 struct netxen_adapter *adapter = NULL;
2956640d 1199 int i = 0, err;
3176ff3e 1200 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d 1201 uint8_t revision_id;
3d396eb1 1202
3176ff3e 1203 if (pdev->class != 0x020000) {
dcd56fdb 1204 printk(KERN_DEBUG "NetXen function %d, class %x will not "
3176ff3e 1205 "be enabled.\n",pci_func_id, pdev->class);
ed25ffa1
AK		 1206 return -ENODEV;
1207 }
2956640d 1208
11d89d63
DP		 1209 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1210 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1211 "will not be enabled.\n",
1212 NX_P3_A0, NX_P3_B1);
1213 return -ENODEV;
1214 }
1215
3d396eb1
AK		 1216 if ((err = pci_enable_device(pdev)))
1217 return err;
2956640d 1218
3d396eb1
AK		 1219 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1220 err = -ENODEV;
1221 goto err_out_disable_pdev;
1222 }
1223
1224 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1225 goto err_out_disable_pdev;
1226
1227 pci_set_master(pdev);
3176ff3e
MT		 1228
1229 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1230 if(!netdev) {
f17443f4
DP		 1231 dev_err(&pdev->dev, "failed to allocate net_device\n");
1232 err = -ENOMEM;
3176ff3e
MT		 1233 goto err_out_free_res;
1234 }
1235
3176ff3e
MT		 1236 SET_NETDEV_DEV(netdev, &pdev->dev);
1237
4cf1653a 1238 adapter = netdev_priv(netdev);
2956640d
DP		 1239 adapter->netdev = netdev;
1240 adapter->pdev = pdev;
13ba9c77 1241 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 1242
1243 revision_id = pdev->revision;
1244 adapter->ahw.revision_id = revision_id;
1245
f03b0ebd
DP		 1246 rwlock_init(&adapter->ahw.crb_lock);
1247 spin_lock_init(&adapter->ahw.mem_lock);
1248
d8b100c5 1249 spin_lock_init(&adapter->tx_clean_lock);
5cf4d323 1250 INIT_LIST_HEAD(&adapter->mac_list);
3ce06a32 1251
97daee83
DP		 1252 err = netxen_setup_pci_map(adapter);
1253 if (err)
6c80b18d 1254 goto err_out_free_netdev;
3d396eb1 1255
2d1a3bbd 1256 /* This will be reset for mezz cards */
3176ff3e 1257 adapter->portnum = pci_func_id;
3176ff3e 1258
f17443f4
DP		 1259 err = netxen_nic_get_board_info(adapter);
1260 if (err) {
1261 dev_err(&pdev->dev, "Error getting board config info.\n");
dcd56fdb
DP		 1262 goto err_out_iounmap;
1263 }
6c80b18d 1264
13ba9c77 1265 /* Mezz cards have PCI function 0,2,3 enabled */
1e2d0059 1266 switch (adapter->ahw.board_type) {
dc515f2e
DP		 1267 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1268 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1269 if (pci_func_id >= 2)
13ba9c77 1270 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 1271 break;
1272 default:
1273 break;
1274 }
13ba9c77 1275
6a581e93 1276 err = netxen_start_firmware(adapter);
0b72e659
DP		 1277 if (err)
1278 goto err_out_iounmap;
f17443f4 1279
3d396eb1 1280 /*
6c80b18d 1281 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 1282 */
dcd56fdb 1283 adapter->physical_port = adapter->portnum;
4f96b988 1284 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
f98a9f69 1285 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
044fad0d
DP		 1286 if (i != 0x55555555)
1287 adapter->physical_port = i;
1288 }
6c80b18d 1289
6a581e93 1290 netxen_nic_clear_stats(adapter);
2956640d 1291
97daee83 1292 netxen_setup_intr(adapter);
2956640d 1293
f17443f4 1294 err = netxen_setup_netdev(adapter, netdev);
9dc28efe 1295 if (err)
2956640d 1296 goto err_out_disable_msi;
6c80b18d
MT		 1297
1298 pci_set_drvdata(pdev, adapter);
3d396eb1 1299
6a581e93
DP		 1300 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1301
1e2d0059 1302 switch (adapter->ahw.port_type) {
2956640d
DP		 1303 case NETXEN_NIC_GBE:
1304 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1305 adapter->netdev->name);
1306 break;
1307 case NETXEN_NIC_XGBE:
1308 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1309 adapter->netdev->name);
1310 break;
3d396eb1 1311 }
3d396eb1 1312
70f9cf89
DP		 1313 netxen_create_diag_entries(adapter);
1314
2956640d
DP		 1315 return 0;
1316
1317err_out_disable_msi:
97daee83 1318 netxen_teardown_intr(adapter);
6c80b18d 1319
83ac51fa 1320 netxen_free_dummy_dma(adapter);
3d396eb1 1321
6a581e93
DP		 1322 nx_decr_dev_ref_cnt(adapter);
1323
2956640d 1324err_out_iounmap:
97daee83 1325 netxen_cleanup_pci_map(adapter);
cb8011ad 1326
6c80b18d
MT		 1327err_out_free_netdev:
1328 free_netdev(netdev);
1329
1330err_out_free_res:
3d396eb1 1331 pci_release_regions(pdev);
6c80b18d
MT		 1332
1333err_out_disable_pdev:
2956640d 1334 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 1335 pci_disable_device(pdev);
1336 return err;
1337}
1338
1339static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1340{
1341 struct netxen_adapter *adapter;
3176ff3e 1342 struct net_device *netdev;
3d396eb1 1343
6c80b18d 1344 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 1345 if (adapter == NULL)
1346 return;
1347
6c80b18d
MT		 1348 netdev = adapter->netdev;
1349
6a581e93
DP		 1350 netxen_cancel_fw_work(adapter);
1351
96acb6eb
DP		 1352 unregister_netdev(netdev);
1353
e424fa9d
AKS		 1354 cancel_work_sync(&adapter->tx_timeout_task);
1355
7042cd8f 1356 netxen_nic_detach(adapter);
3d396eb1 1357
6a581e93
DP		 1358 nx_decr_dev_ref_cnt(adapter);
1359
439b454e 1360 if (adapter->portnum == 0)
83ac51fa 1361 netxen_free_dummy_dma(adapter);
96acb6eb 1362
6a581e93
DP		 1363 clear_bit(__NX_RESETTING, &adapter->state);
1364
97daee83 1365 netxen_teardown_intr(adapter);
3052246c 1366
70f9cf89
DP		 1367 netxen_remove_diag_entries(adapter);
1368
97daee83 1369 netxen_cleanup_pci_map(adapter);
595e3fb8 1370
f7185c71
DP		 1371 netxen_release_firmware(adapter);
1372
595e3fb8 1373 pci_release_regions(pdev);
3052246c 1374 pci_disable_device(pdev);
595e3fb8
MT		 1375 pci_set_drvdata(pdev, NULL);
1376
6c80b18d 1377 free_netdev(netdev);
3d396eb1 1378}
22b5794b 1379static int __netxen_nic_shutdown(struct pci_dev *pdev)
0b72e659 1380{
0b72e659
DP		 1381 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1382 struct net_device *netdev = adapter->netdev;
22b5794b 1383 int retval;
0b72e659
DP		 1384
1385 netif_device_detach(netdev);
1386
6a581e93
DP		 1387 netxen_cancel_fw_work(adapter);
1388
0b72e659
DP		 1389 if (netif_running(netdev))
1390 netxen_nic_down(adapter, netdev);
1391
e424fa9d
AKS		 1392 cancel_work_sync(&adapter->tx_timeout_task);
1393
7042cd8f 1394 netxen_nic_detach(adapter);
0b72e659 1395
22b5794b
AKS		 1396 if (adapter->portnum == 0)
1397 netxen_free_dummy_dma(adapter);
1398
6a581e93
DP		 1399 nx_decr_dev_ref_cnt(adapter);
1400
1401 clear_bit(__NX_RESETTING, &adapter->state);
1402
22b5794b
AKS		 1403 retval = pci_save_state(pdev);
1404 if (retval)
1405 return retval;
0b72e659
DP		 1406
1407 if (netxen_nic_wol_supported(adapter)) {
1408 pci_enable_wake(pdev, PCI_D3cold, 1);
1409 pci_enable_wake(pdev, PCI_D3hot, 1);
1410 }
1411
1412 pci_disable_device(pdev);
0b72e659
DP		 1413
1414 return 0;
1415}
22b5794b
AKS		 1416static void netxen_nic_shutdown(struct pci_dev *pdev)
1417{
1418 if (__netxen_nic_shutdown(pdev))
1419 return;
1420}
1421#ifdef CONFIG_PM
1422static int
1423netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1424{
1425 int retval;
1426
1427 retval = __netxen_nic_shutdown(pdev);
1428 if (retval)
1429 return retval;
1430
1431 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1432 return 0;
1433}
0b72e659
DP		 1434
1435static int
1436netxen_nic_resume(struct pci_dev *pdev)
1437{
1438 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1439 struct net_device *netdev = adapter->netdev;
1440 int err;
1441
1442 pci_set_power_state(pdev, PCI_D0);
1443 pci_restore_state(pdev);
1444
1445 err = pci_enable_device(pdev);
1446 if (err)
1447 return err;
1448
907fa120 1449 adapter->ahw.crb_win = -1;
47abe356 1450 adapter->ahw.ocm_win = -1;
0b72e659 1451
6a581e93 1452 err = netxen_start_firmware(adapter);
0b72e659
DP		 1453 if (err) {
1454 dev_err(&pdev->dev, "failed to start firmware\n");
1455 return err;
1456 }
1457
1458 if (netif_running(netdev)) {
1459 err = netxen_nic_attach(adapter);
1460 if (err)
6a581e93 1461 goto err_out;
0b72e659
DP		 1462
1463 err = netxen_nic_up(adapter, netdev);
1464 if (err)
6a581e93 1465 goto err_out_detach;
0b72e659
DP		 1466
1467 netif_device_attach(netdev);
d0725e4d
AKS		 1468
1469 netxen_config_indev_addr(netdev, NETDEV_UP);
0b72e659
DP		 1470 }
1471
6a581e93 1472 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
07653aa3 1473 return 0;
6a581e93
DP		 1474
1475err_out_detach:
1476 netxen_nic_detach(adapter);
1477err_out:
1478 nx_decr_dev_ref_cnt(adapter);
1479 return err;
0b72e659 1480}
01542cd1 1481#endif
0b72e659 1482
3d396eb1
AK		 1483static int netxen_nic_open(struct net_device *netdev)
1484{
4cf1653a 1485 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1486 int err = 0;
3d396eb1 1487
dcd56fdb
DP		 1488 if (adapter->driver_mismatch)
1489 return -EIO;
1490
7042cd8f
AKS		 1491 err = netxen_nic_attach(adapter);
1492 if (err)
1493 return err;
2956640d 1494
9f5bc7f1
DP		 1495 err = netxen_nic_up(adapter, netdev);
1496 if (err)
1497 goto err_out;
05aaa02d 1498
dcd56fdb 1499 netif_start_queue(netdev);
3d396eb1
AK		 1500
1501 return 0;
2956640d 1502
9f5bc7f1
DP		 1503err_out:
1504 netxen_nic_detach(adapter);
2956640d 1505 return err;
3d396eb1
AK		 1506}
1507
1508/*
1509 * netxen_nic_close - Disables a network interface entry point
1510 */
1511static int netxen_nic_close(struct net_device *netdev)
1512{
3176ff3e 1513 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1514
9f5bc7f1 1515 netxen_nic_down(adapter, netdev);
3d396eb1
AK		 1516 return 0;
1517}
1518
1bcfd790
DP		 1519static void
1520netxen_tso_check(struct net_device *netdev,
1521 struct nx_host_tx_ring *tx_ring,
1522 struct cmd_desc_type0 *first_desc,
1523 struct sk_buff *skb)
cd1f8160 1524{
391587c3 1525 u8 opcode = TX_ETHER_PKT;
cdff1036 1526 __be16 protocol = skb->protocol;
028afe71 1527 u16 flags = 0, vid = 0;
1bcfd790 1528 u32 producer;
028afe71 1529 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1bcfd790 1530 struct cmd_desc_type0 *hwdesc;
028afe71 1531 struct vlan_ethhdr *vh;
cdff1036 1532
09640e63 1533 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
028afe71
DP		 1534
1535 vh = (struct vlan_ethhdr *)skb->data;
cdff1036
DP		 1536 protocol = vh->h_vlan_encapsulated_proto;
1537 flags = FLAGS_VLAN_TAGGED;
028afe71
DP		 1538
1539 } else if (vlan_tx_tag_present(skb)) {
1540
1541 flags = FLAGS_VLAN_OOB;
1542 vid = vlan_tx_tag_get(skb);
1543 netxen_set_tx_vlan_tci(first_desc, vid);
1544 vlan_oob = 1;
cdff1036 1545 }
cd1f8160 1546
391587c3
DP		 1547 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1548 skb_shinfo(skb)->gso_size > 0) {
1549
1bcfd790
DP		 1550 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1551
1552 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1553 first_desc->total_hdr_length = hdr_len;
028afe71
DP		 1554 if (vlan_oob) {
1555 first_desc->total_hdr_length += VLAN_HLEN;
1556 first_desc->tcp_hdr_offset = VLAN_HLEN;
1557 first_desc->ip_hdr_offset = VLAN_HLEN;
1558 /* Only in case of TSO on vlan device */
1559 flags |= FLAGS_VLAN_TAGGED;
1560 }
391587c3 1561
09640e63 1562 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
391587c3 1563 TX_TCP_LSO6 : TX_TCP_LSO;
1bcfd790 1564 tso = 1;
cd1f8160
DP		 1565
1566 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
391587c3
DP		 1567 u8 l4proto;
1568
09640e63 1569 if (protocol == cpu_to_be16(ETH_P_IP)) {
391587c3
DP		 1570 l4proto = ip_hdr(skb)->protocol;
1571
1572 if (l4proto == IPPROTO_TCP)
1573 opcode = TX_TCP_PKT;
1574 else if(l4proto == IPPROTO_UDP)
1575 opcode = TX_UDP_PKT;
09640e63 1576 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
391587c3
DP		 1577 l4proto = ipv6_hdr(skb)->nexthdr;
1578
1579 if (l4proto == IPPROTO_TCP)
1580 opcode = TX_TCPV6_PKT;
1581 else if(l4proto == IPPROTO_UDP)
1582 opcode = TX_UDPV6_PKT;
1583 }
cd1f8160 1584 }
028afe71
DP		 1585
1586 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1587 first_desc->ip_hdr_offset += skb_network_offset(skb);
1bcfd790
DP		 1588 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1589
1590 if (!tso)
1591 return;
1592
1593 /* For LSO, we need to copy the MAC/IP/TCP headers into
1594 * the descriptor ring
1595 */
1596 producer = tx_ring->producer;
1597 copied = 0;
1598 offset = 2;
1599
028afe71
DP		 1600 if (vlan_oob) {
1601 /* Create a TSO vlan header template for firmware */
1602
1603 hwdesc = &tx_ring->desc_head[producer];
1604 tx_ring->cmd_buf_arr[producer].skb = NULL;
1605
1606 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1607 hdr_len + VLAN_HLEN);
1608
1609 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1610 skb_copy_from_linear_data(skb, vh, 12);
1611 vh->h_vlan_proto = htons(ETH_P_8021Q);
1612 vh->h_vlan_TCI = htons(vid);
1613 skb_copy_from_linear_data_offset(skb, 12,
1614 (char *)vh + 16, copy_len - 16);
1615
545eb370 1616 copied = copy_len - VLAN_HLEN;
028afe71
DP		 1617 offset = 0;
1618
1619 producer = get_next_index(producer, tx_ring->num_desc);
1620 }
1621
1bcfd790
DP		 1622 while (copied < hdr_len) {
1623
1624 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1625 (hdr_len - copied));
1626
1627 hwdesc = &tx_ring->desc_head[producer];
1628 tx_ring->cmd_buf_arr[producer].skb = NULL;
1629
1630 skb_copy_from_linear_data_offset(skb, copied,
1631 (char *)hwdesc + offset, copy_len);
1632
1633 copied += copy_len;
1634 offset = 0;
1635
1636 producer = get_next_index(producer, tx_ring->num_desc);
1637 }
1638
1639 tx_ring->producer = producer;
1640 barrier();
cd1f8160
DP		 1641}
1642
ce644ed4
DP		 1643static int
1644netxen_map_tx_skb(struct pci_dev *pdev,
1645 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
6f703406 1646{
ce644ed4
DP		 1647 struct netxen_skb_frag *nf;
1648 struct skb_frag_struct *frag;
1649 int i, nr_frags;
1650 dma_addr_t map;
1651
1652 nr_frags = skb_shinfo(skb)->nr_frags;
1653 nf = &pbuf->frag_array[0];
1654
1655 map = pci_map_single(pdev, skb->data,
1656 skb_headlen(skb), PCI_DMA_TODEVICE);
1657 if (pci_dma_mapping_error(pdev, map))
1658 goto out_err;
6f703406 1659
ce644ed4
DP		 1660 nf->dma = map;
1661 nf->length = skb_headlen(skb);
1662
1663 for (i = 0; i < nr_frags; i++) {
1664 frag = &skb_shinfo(skb)->frags[i];
1665 nf = &pbuf->frag_array[i+1];
1666
1667 map = pci_map_page(pdev, frag->page, frag->page_offset,
1668 frag->size, PCI_DMA_TODEVICE);
1669 if (pci_dma_mapping_error(pdev, map))
1670 goto unwind;
1671
1672 nf->dma = map;
1673 nf->length = frag->size;
1674 }
1675
1676 return 0;
6f703406 1677
ce644ed4 1678unwind:
cf503e8f
DP		 1679 while (--i >= 0) {
1680 nf = &pbuf->frag_array[i+1];
ce644ed4 1681 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
6f703406 1682 }
ce644ed4
DP		 1683
1684 nf = &pbuf->frag_array[0];
1685 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1686
1687out_err:
1688 return -ENOMEM;
6f703406
DP		 1689}
1690
d32cc3d2
DP		 1691static inline void
1692netxen_clear_cmddesc(u64 *desc)
1693{
1bcfd790
DP		 1694 desc[0] = 0ULL;
1695 desc[2] = 0ULL;
d32cc3d2
DP		 1696}
1697
61357325 1698static netdev_tx_t
d32cc3d2 1699netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
3d396eb1 1700{
3176ff3e 1701 struct netxen_adapter *adapter = netdev_priv(netdev);
4ea528a1 1702 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
391587c3 1703 struct netxen_cmd_buffer *pbuf;
3d396eb1 1704 struct netxen_skb_frag *buffrag;
1bcfd790
DP		 1705 struct cmd_desc_type0 *hwdesc, *first_desc;
1706 struct pci_dev *pdev;
391587c3 1707 int i, k;
3d396eb1 1708
cb2107be 1709 u32 producer;
ce644ed4 1710 int frag_count, no_of_desc;
d877f1e3 1711 u32 num_txd = tx_ring->num_desc;
3d396eb1 1712
3d396eb1
AK		 1713 frag_count = skb_shinfo(skb)->nr_frags + 1;
1714
d877f1e3 1715 /* 4 fragments per cmd des */
3d396eb1 1716 no_of_desc = (frag_count + 3) >> 2;
53a01e00 1717
fa9859ef 1718 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
ba53e6b4 1719 netif_stop_queue(netdev);
ba53e6b4 1720 return NETDEV_TX_BUSY;
53a01e00 1721 }
3d396eb1 1722
cb2107be 1723 producer = tx_ring->producer;
ce644ed4 1724 pbuf = &tx_ring->cmd_buf_arr[producer];
cb2107be 1725
1bcfd790 1726 pdev = adapter->pdev;
391587c3 1727
ce644ed4 1728 if (netxen_map_tx_skb(pdev, skb, pbuf))
1bcfd790 1729 goto drop_packet;
391587c3 1730
3d396eb1 1731 pbuf->skb = skb;
3d396eb1 1732 pbuf->frag_count = frag_count;
6f703406 1733
1bcfd790
DP		 1734 first_desc = hwdesc = &tx_ring->desc_head[producer];
1735 netxen_clear_cmddesc((u64 *)hwdesc);
3d396eb1 1736
ce644ed4
DP		 1737 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1738 netxen_set_tx_port(first_desc, adapter->portnum);
3d396eb1 1739
ce644ed4 1740 for (i = 0; i < frag_count; i++) {
3d396eb1 1741
ce644ed4
DP		 1742 k = i % 4;
1743
1744 if ((k == 0) && (i > 0)) {
1745 /* move to next desc.*/
ba53e6b4 1746 producer = get_next_index(producer, num_txd);
d877f1e3 1747 hwdesc = &tx_ring->desc_head[producer];
d32cc3d2 1748 netxen_clear_cmddesc((u64 *)hwdesc);
ce644ed4 1749 tx_ring->cmd_buf_arr[producer].skb = NULL;
6f703406 1750 }
3d396eb1 1751
ce644ed4 1752 buffrag = &pbuf->frag_array[i];
3d396eb1 1753
ce644ed4 1754 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
3d396eb1
AK		 1755 switch (k) {
1756 case 0:
ce644ed4 1757 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1758 break;
1759 case 1:
ce644ed4 1760 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1761 break;
1762 case 2:
ce644ed4 1763 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1764 break;
1765 case 3:
ce644ed4 1766 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
3d396eb1
AK		 1767 break;
1768 }
3d396eb1 1769 }
ce644ed4 1770
1bcfd790 1771 tx_ring->producer = get_next_index(producer, num_txd);
3d396eb1 1772
1bcfd790 1773 netxen_tso_check(netdev, tx_ring, first_desc, skb);
6c80b18d 1774
cb2107be 1775 netxen_nic_update_cmd_producer(adapter, tx_ring);
3d396eb1 1776
1bcfd790 1777 adapter->stats.txbytes += skb->len;
ba53e6b4 1778 adapter->stats.xmitcalled++;
3d396eb1 1779
3d396eb1 1780 return NETDEV_TX_OK;
6f703406
DP		 1781
1782drop_packet:
1783 adapter->stats.txdropped++;
1784 dev_kfree_skb_any(skb);
1785 return NETDEV_TX_OK;
3d396eb1
AK		 1786}
1787
a97342f9
DP		 1788static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1789{
1790 struct net_device *netdev = adapter->netdev;
1791 uint32_t temp, temp_state, temp_val;
1792 int rv = 0;
1793
f98a9f69 1794 temp = NXRD32(adapter, CRB_TEMP_STATE);
a97342f9
DP		 1795
1796 temp_state = nx_get_temp_state(temp);
1797 temp_val = nx_get_temp_val(temp);
1798
1799 if (temp_state == NX_TEMP_PANIC) {
1800 printk(KERN_ALERT
1801 "%s: Device temperature %d degrees C exceeds"
1802 " maximum allowed. Hardware has been shut down.\n",
e4135c2d 1803 netdev->name, temp_val);
a97342f9
DP		 1804 rv = 1;
1805 } else if (temp_state == NX_TEMP_WARN) {
1806 if (adapter->temp == NX_TEMP_NORMAL) {
1807 printk(KERN_ALERT
1808 "%s: Device temperature %d degrees C "
1809 "exceeds operating range."
1810 " Immediate action needed.\n",
e4135c2d 1811 netdev->name, temp_val);
a97342f9
DP		 1812 }
1813 } else {
1814 if (adapter->temp == NX_TEMP_WARN) {
1815 printk(KERN_INFO
1816 "%s: Device temperature is now %d degrees C"
e4135c2d 1817 " in normal range.\n", netdev->name,
a97342f9
DP		 1818 temp_val);
1819 }
1820 }
1821 adapter->temp = temp_state;
1822 return rv;
1823}
1824
3bf26ce3 1825void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
a97342f9
DP		 1826{
1827 struct net_device *netdev = adapter->netdev;
a97342f9
DP		 1828
1829 if (adapter->ahw.linkup && !linkup) {
1830 printk(KERN_INFO "%s: %s NIC Link is down\n",
1831 netxen_nic_driver_name, netdev->name);
1832 adapter->ahw.linkup = 0;
1833 if (netif_running(netdev)) {
1834 netif_carrier_off(netdev);
1835 netif_stop_queue(netdev);
1836 }
e424fa9d 1837 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1838 } else if (!adapter->ahw.linkup && linkup) {
1839 printk(KERN_INFO "%s: %s NIC Link is up\n",
1840 netxen_nic_driver_name, netdev->name);
1841 adapter->ahw.linkup = 1;
1842 if (netif_running(netdev)) {
1843 netif_carrier_on(netdev);
1844 netif_wake_queue(netdev);
1845 }
e424fa9d 1846 adapter->link_changed = !adapter->has_link_events;
a97342f9
DP		 1847 }
1848}
1849
3bf26ce3
DP		 1850static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1851{
1852 u32 val, port, linkup;
1853
1854 port = adapter->physical_port;
1855
1856 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
f98a9f69 1857 val = NXRD32(adapter, CRB_XG_STATE_P3);
3bf26ce3
DP		 1858 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1859 linkup = (val == XG_LINK_UP_P3);
1860 } else {
f98a9f69 1861 val = NXRD32(adapter, CRB_XG_STATE);
3bf26ce3
DP		 1862 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1863 linkup = (val >> port) & 1;
1864 else {
1865 val = (val >> port*8) & 0xff;
1866 linkup = (val == XG_LINK_UP);
1867 }
1868 }
1869
1870 netxen_advert_link_change(adapter, linkup);
1871}
1872
3d396eb1
AK		 1873static void netxen_tx_timeout(struct net_device *netdev)
1874{
e424fa9d 1875 struct netxen_adapter *adapter = netdev_priv(netdev);
f17443f4 1876
6a581e93
DP		 1877 if (test_bit(__NX_RESETTING, &adapter->state))
1878 return;
1879
f17443f4 1880 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
e424fa9d 1881 schedule_work(&adapter->tx_timeout_task);
3d396eb1
AK		 1882}
1883
74c520da 1884static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 1885{
4790654c 1886 struct netxen_adapter *adapter =
3176ff3e 1887 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1 1888
b2af9cb0
DP		 1889 if (!netif_running(adapter->netdev))
1890 return;
1891
74c520da 1892 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
6a581e93
DP		 1893 return;
1894
74c520da
AKS		 1895 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1896 goto request_reset;
1897
1898 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1899 /* try to scrub interrupt */
1900 netxen_napi_disable(adapter);
ba53e6b4 1901
74c520da 1902 adapter->netdev->trans_start = jiffies;
ba53e6b4 1903
74c520da
AKS		 1904 netxen_napi_enable(adapter);
1905
1906 netif_wake_queue(adapter->netdev);
1907
a598ae17 1908 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1909
1910 } else {
a598ae17 1911 clear_bit(__NX_RESETTING, &adapter->state);
74c520da
AKS		 1912 if (!netxen_nic_reset_context(adapter)) {
1913 adapter->netdev->trans_start = jiffies;
a598ae17 1914 return;
74c520da
AKS		 1915 }
1916
1917 /* context reset failed, fall through for fw reset */
1918 }
1919
1920request_reset:
1921 adapter->need_fw_reset = 1;
3d396eb1
AK		 1922}
1923
a97342f9
DP		 1924struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1925{
1926 struct netxen_adapter *adapter = netdev_priv(netdev);
5a4d6311 1927 struct net_device_stats *stats = &netdev->stats;
a97342f9
DP		 1928
1929 memset(stats, 0, sizeof(*stats));
1930
1bb482f8 1931 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
e98e3350 1932 stats->tx_packets = adapter->stats.xmitfinished;
a97342f9 1933 stats->rx_bytes = adapter->stats.rxbytes;
a97342f9 1934 stats->tx_bytes = adapter->stats.txbytes;
a97342f9 1935 stats->rx_dropped = adapter->stats.rxdropped;
a97342f9
DP		 1936 stats->tx_dropped = adapter->stats.txdropped;
1937
1938 return stats;
1939}
1940
e4c93c81 1941static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1942{
d8b100c5
DP		 1943 struct nx_host_sds_ring *sds_ring = data;
1944 struct netxen_adapter *adapter = sds_ring->adapter;
d71e1be8
DP		 1945 u32 status = 0;
1946
195c5f98 1947 status = readl(adapter->isr_int_vec);
d71e1be8 1948
195c5f98 1949 if (!(status & adapter->int_vec_bit))
05aaa02d 1950 return IRQ_NONE;
e01872af 1951
195c5f98 1952 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
d71e1be8 1953 /* check interrupt state machine, to be sure */
195c5f98 1954 status = readl(adapter->crb_int_state_reg);
d71e1be8
DP		 1955 if (!ISR_LEGACY_INT_TRIGGERED(status))
1956 return IRQ_NONE;
1957
092bc571
DP		 1958 } else {
1959 unsigned long our_int = 0;
d71e1be8 1960
195c5f98 1961 our_int = readl(adapter->crb_int_state_reg);
092bc571 1962
d71e1be8 1963 /* not our interrupt */
092bc571 1964 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1965 return IRQ_NONE;
1966
092bc571 1967 /* claim interrupt */
195c5f98 1968 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
e01872af 1969
195c5f98 1970 /* clear interrupt */
d8b100c5 1971 netxen_nic_disable_int(sds_ring);
195c5f98 1972 }
092bc571 1973
195c5f98 1974 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1975 /* read twice to ensure write is flushed */
195c5f98
AKS		 1976 readl(adapter->isr_int_vec);
1977 readl(adapter->isr_int_vec);
092bc571 1978
d8b100c5 1979 napi_schedule(&sds_ring->napi);
3d396eb1
AK		 1980
1981 return IRQ_HANDLED;
1982}
1983
e4c93c81 1984static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d 1985{
d8b100c5
DP		 1986 struct nx_host_sds_ring *sds_ring = data;
1987 struct netxen_adapter *adapter = sds_ring->adapter;
05aaa02d 1988
092bc571 1989 /* clear interrupt */
195c5f98 1990 writel(0xffffffff, adapter->tgt_status_reg);
092bc571 1991
d8b100c5 1992 napi_schedule(&sds_ring->napi);
05aaa02d
DP		 1993 return IRQ_HANDLED;
1994}
1995
b3df68f8
DP		 1996static irqreturn_t netxen_msix_intr(int irq, void *data)
1997{
d8b100c5 1998 struct nx_host_sds_ring *sds_ring = data;
b3df68f8 1999
d8b100c5 2000 napi_schedule(&sds_ring->napi);
b3df68f8
DP		 2001 return IRQ_HANDLED;
2002}
2003
bea3348e 2004static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 2005{
d8b100c5
DP		 2006 struct nx_host_sds_ring *sds_ring =
2007 container_of(napi, struct nx_host_sds_ring, napi);
2008
2009 struct netxen_adapter *adapter = sds_ring->adapter;
2010
05aaa02d 2011 int tx_complete;
bea3348e 2012 int work_done;
3d396eb1 2013
05aaa02d 2014 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 2015
d8b100c5 2016 work_done = netxen_process_rcv_ring(sds_ring, budget);
3d396eb1 2017
05aaa02d 2018 if ((work_done < budget) && tx_complete) {
d8b100c5 2019 napi_complete(&sds_ring->napi);
b2af9cb0
DP		 2020 if (netif_running(adapter->netdev))
2021 netxen_nic_enable_int(sds_ring);
3d396eb1
AK		 2022 }
2023
bea3348e 2024 return work_done;
3d396eb1
AK		 2025}
2026
2027#ifdef CONFIG_NET_POLL_CONTROLLER
2028static void netxen_nic_poll_controller(struct net_device *netdev)
2029{
3176ff3e 2030 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 2031 disable_irq(adapter->irq);
1494a814 2032 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 2033 enable_irq(adapter->irq);
2034}
2035#endif
3d396eb1 2036
6a581e93
DP		 2037static int
2038nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2039{
2040 int count;
2041 if (netxen_api_lock(adapter))
2042 return -EIO;
2043
2044 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2045
2046 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2047
2048 netxen_api_unlock(adapter);
2049 return count;
2050}
2051
2052static int
2053nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2054{
2055 int count;
2056 if (netxen_api_lock(adapter))
2057 return -EIO;
2058
2059 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2060 WARN_ON(count == 0);
2061
2062 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2063
2064 if (count == 0)
2065 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2066
2067 netxen_api_unlock(adapter);
2068 return count;
2069}
2070
74c520da
AKS		 2071static void
2072nx_dev_request_reset(struct netxen_adapter *adapter)
2073{
2074 u32 state;
2075
2076 if (netxen_api_lock(adapter))
2077 return;
2078
2079 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2080
2081 if (state != NX_DEV_INITALIZING)
2082 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2083
2084 netxen_api_unlock(adapter);
2085}
2086
6a581e93
DP		 2087static int
2088netxen_can_start_firmware(struct netxen_adapter *adapter)
2089{
2090 int count;
2091 int can_start = 0;
2092
2093 if (netxen_api_lock(adapter))
2094 return 0;
2095
2096 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2097
2098 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2099 count = 0;
2100
2101 if (count == 0) {
2102 can_start = 1;
2103 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2104 }
2105
2106 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2107
2108 netxen_api_unlock(adapter);
2109
2110 return can_start;
2111}
2112
2113static void
2114netxen_schedule_work(struct netxen_adapter *adapter,
2115 work_func_t func, int delay)
2116{
2117 INIT_DELAYED_WORK(&adapter->fw_work, func);
2118 schedule_delayed_work(&adapter->fw_work, delay);
2119}
2120
2121static void
2122netxen_cancel_fw_work(struct netxen_adapter *adapter)
2123{
2124 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2125 msleep(10);
2126
2127 cancel_delayed_work_sync(&adapter->fw_work);
2128}
2129
2130static void
2131netxen_attach_work(struct work_struct *work)
2132{
2133 struct netxen_adapter *adapter = container_of(work,
2134 struct netxen_adapter, fw_work.work);
2135 struct net_device *netdev = adapter->netdev;
2136 int err = 0;
2137
2138 if (netif_running(netdev)) {
2139 err = netxen_nic_attach(adapter);
2140 if (err)
2141 goto done;
2142
2143 err = netxen_nic_up(adapter, netdev);
2144 if (err) {
2145 netxen_nic_detach(adapter);
2146 goto done;
2147 }
2148
d0725e4d 2149 netxen_config_indev_addr(netdev, NETDEV_UP);
6a581e93
DP		 2150 }
2151
2152 netif_device_attach(netdev);
2153
2154done:
2155 adapter->fw_fail_cnt = 0;
2156 clear_bit(__NX_RESETTING, &adapter->state);
2157 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2158}
2159
2160static void
2161netxen_fwinit_work(struct work_struct *work)
2162{
2163 struct netxen_adapter *adapter = container_of(work,
2164 struct netxen_adapter, fw_work.work);
2165 int dev_state;
2166
2167 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2168
2169 switch (dev_state) {
2170 case NX_DEV_COLD:
2171 case NX_DEV_READY:
74c520da
AKS		 2172 if (!netxen_start_firmware(adapter)) {
2173 netxen_schedule_work(adapter, netxen_attach_work, 0);
2174 return;
2175 }
2176 break;
6a581e93
DP		 2177
2178 case NX_DEV_INITALIZING:
2179 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2180 netxen_schedule_work(adapter,
2181 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2182 return;
2183 }
2184 break;
2185
2186 case NX_DEV_FAILED:
2187 default:
2188 break;
2189 }
2190
2191 nx_incr_dev_ref_cnt(adapter);
2192 clear_bit(__NX_RESETTING, &adapter->state);
2193}
2194
2195static void
2196netxen_detach_work(struct work_struct *work)
2197{
2198 struct netxen_adapter *adapter = container_of(work,
2199 struct netxen_adapter, fw_work.work);
2200 struct net_device *netdev = adapter->netdev;
2201 int ref_cnt, delay;
2202 u32 status;
2203
2204 netif_device_detach(netdev);
2205
2206 if (netif_running(netdev))
2207 netxen_nic_down(adapter, netdev);
2208
2209 netxen_nic_detach(adapter);
2210
2211 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2212
2213 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2214
2215 if (status & NX_RCODE_FATAL_ERROR)
2216 return;
2217
2218 if (adapter->temp == NX_TEMP_PANIC)
2219 return;
2220
2221 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2222
2223 adapter->fw_wait_cnt = 0;
2224 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2225}
2226
2227static int
2228netxen_check_health(struct netxen_adapter *adapter)
2229{
2230 u32 state, heartbit;
2231 struct net_device *netdev = adapter->netdev;
2232
2233 if (netxen_nic_check_temp(adapter))
2234 goto detach;
2235
74c520da
AKS		 2236 if (adapter->need_fw_reset) {
2237 nx_dev_request_reset(adapter);
2238 goto detach;
2239 }
2240
6a581e93
DP		 2241 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2242 if (state == NX_DEV_NEED_RESET)
2243 goto detach;
2244
2245 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2246 return 0;
2247
2248 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2249 if (heartbit != adapter->heartbit) {
2250 adapter->heartbit = heartbit;
2251 adapter->fw_fail_cnt = 0;
2252 return 0;
2253 }
2254
2255 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2256 return 0;
2257
2258 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2259
2260 dev_info(&netdev->dev, "firmware hang detected\n");
2261
2262detach:
2263 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2264 netxen_schedule_work(adapter, netxen_detach_work, 0);
2265 return 1;
2266}
2267
2268static void
2269netxen_fw_poll_work(struct work_struct *work)
2270{
2271 struct netxen_adapter *adapter = container_of(work,
2272 struct netxen_adapter, fw_work.work);
2273
2274 if (test_bit(__NX_RESETTING, &adapter->state))
2275 goto reschedule;
2276
2277 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2278 if (!adapter->has_link_events) {
2279
2280 netxen_nic_handle_phy_intr(adapter);
2281
2282 if (adapter->link_changed)
2283 netxen_nic_set_link_parameters(adapter);
2284 }
2285 }
2286
2287 if (netxen_check_health(adapter))
2288 return;
2289
2290reschedule:
2291 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2292}
2293
fa3ce355
NK		 2294static ssize_t
2295netxen_store_bridged_mode(struct device *dev,
2296 struct device_attribute *attr, const char *buf, size_t len)
2297{
2298 struct net_device *net = to_net_dev(dev);
2299 struct netxen_adapter *adapter = netdev_priv(net);
2300 unsigned long new;
2301 int ret = -EINVAL;
2302
2303 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2304 goto err_out;
2305
2306 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2307 goto err_out;
2308
2309 if (strict_strtoul(buf, 2, &new))
2310 goto err_out;
2311
2312 if (!netxen_config_bridged_mode(adapter, !!new))
2313 ret = len;
2314
2315err_out:
2316 return ret;
2317}
2318
2319static ssize_t
2320netxen_show_bridged_mode(struct device *dev,
2321 struct device_attribute *attr, char *buf)
2322{
2323 struct net_device *net = to_net_dev(dev);
2324 struct netxen_adapter *adapter;
2325 int bridged_mode = 0;
2326
2327 adapter = netdev_priv(net);
2328
2329 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2330 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2331
2332 return sprintf(buf, "%d\n", bridged_mode);
2333}
2334
2335static struct device_attribute dev_attr_bridged_mode = {
2336 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2337 .show = netxen_show_bridged_mode,
2338 .store = netxen_store_bridged_mode,
2339};
2340
70f9cf89
DP		 2341static ssize_t
2342netxen_store_diag_mode(struct device *dev,
2343 struct device_attribute *attr, const char *buf, size_t len)
2344{
2345 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2346 unsigned long new;
2347
2348 if (strict_strtoul(buf, 2, &new))
2349 return -EINVAL;
2350
2351 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2352 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2353
2354 return len;
2355}
2356
2357static ssize_t
2358netxen_show_diag_mode(struct device *dev,
2359 struct device_attribute *attr, char *buf)
2360{
2361 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2362
2363 return sprintf(buf, "%d\n",
2364 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2365}
2366
2367static struct device_attribute dev_attr_diag_mode = {
2368 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2369 .show = netxen_show_diag_mode,
2370 .store = netxen_store_diag_mode,
2371};
2372
2373static int
2374netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2375 loff_t offset, size_t size)
2376{
2377 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2378 return -EIO;
2379
2380 if ((size != 4) || (offset & 0x3))
2381 return -EINVAL;
2382
2383 if (offset < NETXEN_PCI_CRBSPACE)
2384 return -EINVAL;
2385
2386 return 0;
2387}
2388
2389static ssize_t
2390netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2391 char *buf, loff_t offset, size_t size)
2392{
2393 struct device *dev = container_of(kobj, struct device, kobj);
2394 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2395 u32 data;
2396 int ret;
2397
2398 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2399 if (ret != 0)
2400 return ret;
2401
2402 data = NXRD32(adapter, offset);
2403 memcpy(buf, &data, size);
2404 return size;
2405}
2406
2407static ssize_t
2408netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2409 char *buf, loff_t offset, size_t size)
2410{
2411 struct device *dev = container_of(kobj, struct device, kobj);
2412 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2413 u32 data;
2414 int ret;
2415
2416 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2417 if (ret != 0)
2418 return ret;
2419
2420 memcpy(&data, buf, size);
2421 NXWR32(adapter, offset, data);
2422 return size;
2423}
2424
2425static int
2426netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2427 loff_t offset, size_t size)
2428{
2429 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2430 return -EIO;
2431
2432 if ((size != 8) || (offset & 0x7))
2433 return -EIO;
2434
2435 return 0;
2436}
2437
2438static ssize_t
2439netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2440 char *buf, loff_t offset, size_t size)
2441{
2442 struct device *dev = container_of(kobj, struct device, kobj);
2443 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2444 u64 data;
2445 int ret;
2446
2447 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2448 if (ret != 0)
2449 return ret;
2450
2451 if (adapter->pci_mem_read(adapter, offset, &data))
2452 return -EIO;
2453
2454 memcpy(buf, &data, size);
2455
2456 return size;
2457}
2458
2459ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2460 struct bin_attribute *attr, char *buf,
2461 loff_t offset, size_t size)
2462{
2463 struct device *dev = container_of(kobj, struct device, kobj);
2464 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2465 u64 data;
2466 int ret;
2467
2468 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2469 if (ret != 0)
2470 return ret;
2471
2472 memcpy(&data, buf, size);
2473
2474 if (adapter->pci_mem_write(adapter, offset, data))
2475 return -EIO;
2476
2477 return size;
2478}
2479
2480
2481static struct bin_attribute bin_attr_crb = {
2482 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2483 .size = 0,
2484 .read = netxen_sysfs_read_crb,
2485 .write = netxen_sysfs_write_crb,
2486};
2487
2488static struct bin_attribute bin_attr_mem = {
2489 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2490 .size = 0,
2491 .read = netxen_sysfs_read_mem,
2492 .write = netxen_sysfs_write_mem,
2493};
2494
fa3ce355
NK		 2495static void
2496netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2497{
2498 struct net_device *netdev = adapter->netdev;
2499 struct device *dev = &netdev->dev;
2500
2501 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2502 /* bridged_mode control */
2503 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2504 dev_warn(&netdev->dev,
2505 "failed to create bridged_mode sysfs entry\n");
2506 }
2507 }
2508}
2509
2510static void
2511netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2512{
2513 struct net_device *netdev = adapter->netdev;
2514 struct device *dev = &netdev->dev;
2515
2516 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2517 device_remove_file(dev, &dev_attr_bridged_mode);
2518}
2519
70f9cf89
DP		 2520static void
2521netxen_create_diag_entries(struct netxen_adapter *adapter)
2522{
2523 struct pci_dev *pdev = adapter->pdev;
2524 struct device *dev;
2525
2526 dev = &pdev->dev;
2527 if (device_create_file(dev, &dev_attr_diag_mode))
2528 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2529 if (device_create_bin_file(dev, &bin_attr_crb))
2530 dev_info(dev, "failed to create crb sysfs entry\n");
2531 if (device_create_bin_file(dev, &bin_attr_mem))
2532 dev_info(dev, "failed to create mem sysfs entry\n");
2533}
2534
2535
2536static void
2537netxen_remove_diag_entries(struct netxen_adapter *adapter)
2538{
2539 struct pci_dev *pdev = adapter->pdev;
2540 struct device *dev = &pdev->dev;
2541
2542 device_remove_file(dev, &dev_attr_diag_mode);
2543 device_remove_bin_file(dev, &bin_attr_crb);
2544 device_remove_bin_file(dev, &bin_attr_mem);
2545}
2546
044824d9
DP		 2547#ifdef CONFIG_INET
2548
6598b169
DP		 2549#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2550
2551static int
2552netxen_destip_supported(struct netxen_adapter *adapter)
2553{
2554 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2555 return 0;
2556
2557 if (adapter->ahw.cut_through)
2558 return 0;
2559
2560 return 1;
2561}
2562
d0725e4d
AKS		 2563static void
2564netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2565{
2566 struct in_device *indev;
2567 struct netxen_adapter *adapter = netdev_priv(dev);
2568
3db76755 2569 if (!netxen_destip_supported(adapter))
d0725e4d
AKS		 2570 return;
2571
2572 indev = in_dev_get(dev);
2573 if (!indev)
2574 return;
2575
2576 for_ifa(indev) {
2577 switch (event) {
2578 case NETDEV_UP:
2579 netxen_config_ipaddr(adapter,
2580 ifa->ifa_address, NX_IP_UP);
2581 break;
2582 case NETDEV_DOWN:
2583 netxen_config_ipaddr(adapter,
2584 ifa->ifa_address, NX_IP_DOWN);
2585 break;
2586 default:
2587 break;
2588 }
2589 } endfor_ifa(indev);
2590
2591 in_dev_put(indev);
2592 return;
2593}
2594
6598b169
DP		 2595static int netxen_netdev_event(struct notifier_block *this,
2596 unsigned long event, void *ptr)
2597{
2598 struct netxen_adapter *adapter;
2599 struct net_device *dev = (struct net_device *)ptr;
6598b169
DP		 2600
2601recheck:
2602 if (dev == NULL)
2603 goto done;
2604
2605 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2606 dev = vlan_dev_real_dev(dev);
2607 goto recheck;
2608 }
2609
2610 if (!is_netxen_netdev(dev))
2611 goto done;
2612
2613 adapter = netdev_priv(dev);
2614
d0725e4d 2615 if (!adapter)
6598b169
DP		 2616 goto done;
2617
2618 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2619 goto done;
2620
d0725e4d 2621 netxen_config_indev_addr(dev, event);
6598b169
DP		 2622done:
2623 return NOTIFY_DONE;
2624}
2625
2626static int
2627netxen_inetaddr_event(struct notifier_block *this,
2628 unsigned long event, void *ptr)
2629{
2630 struct netxen_adapter *adapter;
2631 struct net_device *dev;
2632
2633 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2634
2635 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2636
2637recheck:
2638 if (dev == NULL || !netif_running(dev))
2639 goto done;
2640
2641 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2642 dev = vlan_dev_real_dev(dev);
2643 goto recheck;
2644 }
2645
2646 if (!is_netxen_netdev(dev))
2647 goto done;
2648
2649 adapter = netdev_priv(dev);
2650
2651 if (!adapter || !netxen_destip_supported(adapter))
2652 goto done;
2653
2654 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2655 goto done;
2656
2657 switch (event) {
2658 case NETDEV_UP:
2659 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2660 break;
2661 case NETDEV_DOWN:
2662 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2663 break;
2664 default:
2665 break;
2666 }
2667
2668done:
2669 return NOTIFY_DONE;
2670}
2671
2672static struct notifier_block netxen_netdev_cb = {
2673 .notifier_call = netxen_netdev_event,
2674};
2675
2676static struct notifier_block netxen_inetaddr_cb = {
2677 .notifier_call = netxen_inetaddr_event,
2678};
9feae56c
RD		 2679#else
2680static void
2681netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2682{ }
044824d9 2683#endif
6598b169 2684
3d396eb1
AK		 2685static struct pci_driver netxen_driver = {
2686 .name = netxen_nic_driver_name,
2687 .id_table = netxen_pci_tbl,
2688 .probe = netxen_nic_probe,
0b72e659 2689 .remove = __devexit_p(netxen_nic_remove),
01542cd1 2690#ifdef CONFIG_PM
0b72e659 2691 .suspend = netxen_nic_suspend,
22b5794b 2692 .resume = netxen_nic_resume,
01542cd1 2693#endif
22b5794b 2694 .shutdown = netxen_nic_shutdown
3d396eb1
AK		 2695};
2696
3d396eb1
AK		 2697static int __init netxen_init_module(void)
2698{
ff4fbd43
DP		 2699 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2700
044824d9 2701#ifdef CONFIG_INET
6598b169
DP		 2702 register_netdevice_notifier(&netxen_netdev_cb);
2703 register_inetaddr_notifier(&netxen_inetaddr_cb);
044824d9 2704#endif
6598b169 2705
184231bd 2706 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 2707}
2708
2709module_init(netxen_init_module);
2710
2711static void __exit netxen_exit_module(void)
2712{
3d396eb1 2713 pci_unregister_driver(&netxen_driver);
6598b169 2714
044824d9 2715#ifdef CONFIG_INET
6598b169
DP		 2716 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2717 unregister_netdevice_notifier(&netxen_netdev_cb);
044824d9 2718#endif
3d396eb1
AK		 2719}
2720
2721module_exit(netxen_exit_module);
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