1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (C) 2003 - 2009 NetXen, Inc. |
4 | * Copyright (C) 2009 - QLogic Corporation. |
5 | * All rights reserved. |
6 | */ |
7 | |
8 | #include <linux/slab.h> |
9 | #include <linux/vmalloc.h> |
10 | #include <linux/interrupt.h> |
11 | #include "netxen_nic_hw.h" |
12 | |
13 | #include "netxen_nic.h" |
14 | |
15 | #include <linux/dma-mapping.h> |
16 | #include <linux/if_vlan.h> |
17 | #include <net/ip.h> |
18 | #include <linux/ipv6.h> |
19 | #include <linux/inetdevice.h> |
20 | #include <linux/sysfs.h> |
21 | |
22 | MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver" ); |
23 | MODULE_LICENSE("GPL" ); |
24 | MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); |
25 | MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); |
26 | |
27 | char netxen_nic_driver_name[] = "netxen_nic" ; |
28 | static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" |
29 | NETXEN_NIC_LINUX_VERSIONID; |
30 | |
31 | static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
32 | |
33 | /* Default to restricted 1G auto-neg mode */ |
34 | static int wol_port_mode = 5; |
35 | |
36 | static int use_msi = 1; |
37 | |
38 | static int use_msi_x = 1; |
39 | |
40 | static int auto_fw_reset = AUTO_FW_RESET_ENABLED; |
41 | module_param(auto_fw_reset, int, 0644); |
42 | MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled" ); |
43 | |
44 | static int netxen_nic_probe(struct pci_dev *pdev, |
45 | const struct pci_device_id *ent); |
46 | static void netxen_nic_remove(struct pci_dev *pdev); |
47 | static int netxen_nic_open(struct net_device *netdev); |
48 | static int netxen_nic_close(struct net_device *netdev); |
49 | static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, |
50 | struct net_device *); |
51 | static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue); |
52 | static void netxen_tx_timeout_task(struct work_struct *work); |
53 | static void netxen_fw_poll_work(struct work_struct *work); |
54 | static void netxen_schedule_work(struct netxen_adapter *adapter, |
55 | work_func_t func, int delay); |
56 | static void netxen_cancel_fw_work(struct netxen_adapter *adapter); |
57 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
58 | |
59 | static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); |
60 | static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); |
61 | static void netxen_create_diag_entries(struct netxen_adapter *adapter); |
62 | static void netxen_remove_diag_entries(struct netxen_adapter *adapter); |
63 | static int nx_dev_request_aer(struct netxen_adapter *adapter); |
64 | static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); |
65 | static int netxen_can_start_firmware(struct netxen_adapter *adapter); |
66 | |
67 | static irqreturn_t netxen_intr(int irq, void *data); |
68 | static irqreturn_t netxen_msi_intr(int irq, void *data); |
69 | static irqreturn_t netxen_msix_intr(int irq, void *data); |
70 | |
71 | static void netxen_free_ip_list(struct netxen_adapter *, bool); |
72 | static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); |
73 | static void netxen_nic_get_stats(struct net_device *dev, |
74 | struct rtnl_link_stats64 *stats); |
75 | static int netxen_nic_set_mac(struct net_device *netdev, void *p); |
76 | |
77 | /* PCI Device ID Table */ |
78 | #define ENTRY(device) \ |
79 | {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ |
80 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} |
81 | |
82 | static const struct pci_device_id netxen_pci_tbl[] = { |
83 | ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), |
84 | ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), |
85 | ENTRY(PCI_DEVICE_ID_NX2031_4GCU), |
86 | ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), |
87 | ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), |
88 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), |
89 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), |
90 | ENTRY(PCI_DEVICE_ID_NX3031), |
91 | {0,} |
92 | }; |
93 | |
94 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); |
95 | |
96 | static uint32_t crb_cmd_producer[4] = { |
97 | CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, |
98 | CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 |
99 | }; |
100 | |
101 | void |
102 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
103 | struct nx_host_tx_ring *tx_ring) |
104 | { |
105 | NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); |
106 | } |
107 | |
108 | static uint32_t crb_cmd_consumer[4] = { |
109 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, |
110 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 |
111 | }; |
112 | |
113 | static inline void |
114 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, |
115 | struct nx_host_tx_ring *tx_ring) |
116 | { |
117 | NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); |
118 | } |
119 | |
120 | static uint32_t msi_tgt_status[8] = { |
121 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
122 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
123 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, |
124 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 |
125 | }; |
126 | |
127 | static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
128 | |
129 | static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) |
130 | { |
131 | struct netxen_adapter *adapter = sds_ring->adapter; |
132 | |
133 | NXWRIO(adapter, sds_ring->crb_intr_mask, 0); |
134 | } |
135 | |
136 | static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) |
137 | { |
138 | struct netxen_adapter *adapter = sds_ring->adapter; |
139 | |
140 | NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); |
141 | |
142 | if (!NETXEN_IS_MSI_FAMILY(adapter)) |
143 | NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); |
144 | } |
145 | |
146 | static int |
147 | netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) |
148 | { |
149 | int size = sizeof(struct nx_host_sds_ring) * count; |
150 | |
151 | recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); |
152 | |
153 | return recv_ctx->sds_rings == NULL; |
154 | } |
155 | |
156 | static void |
157 | netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) |
158 | { |
159 | kfree(objp: recv_ctx->sds_rings); |
160 | recv_ctx->sds_rings = NULL; |
161 | } |
162 | |
163 | static int |
164 | netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) |
165 | { |
166 | int ring; |
167 | struct nx_host_sds_ring *sds_ring; |
168 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
169 | |
170 | if (netxen_alloc_sds_rings(recv_ctx, count: adapter->max_sds_rings)) |
171 | return -ENOMEM; |
172 | |
173 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
174 | sds_ring = &recv_ctx->sds_rings[ring]; |
175 | netif_napi_add(dev: netdev, napi: &sds_ring->napi, poll: netxen_nic_poll); |
176 | } |
177 | |
178 | return 0; |
179 | } |
180 | |
181 | static void |
182 | netxen_napi_del(struct netxen_adapter *adapter) |
183 | { |
184 | int ring; |
185 | struct nx_host_sds_ring *sds_ring; |
186 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
187 | |
188 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
189 | sds_ring = &recv_ctx->sds_rings[ring]; |
190 | netif_napi_del(napi: &sds_ring->napi); |
191 | } |
192 | |
193 | netxen_free_sds_rings(recv_ctx: &adapter->recv_ctx); |
194 | } |
195 | |
196 | static void |
197 | netxen_napi_enable(struct netxen_adapter *adapter) |
198 | { |
199 | int ring; |
200 | struct nx_host_sds_ring *sds_ring; |
201 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
202 | |
203 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
204 | sds_ring = &recv_ctx->sds_rings[ring]; |
205 | napi_enable(n: &sds_ring->napi); |
206 | netxen_nic_enable_int(sds_ring); |
207 | } |
208 | } |
209 | |
210 | static void |
211 | netxen_napi_disable(struct netxen_adapter *adapter) |
212 | { |
213 | int ring; |
214 | struct nx_host_sds_ring *sds_ring; |
215 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
216 | |
217 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
218 | sds_ring = &recv_ctx->sds_rings[ring]; |
219 | netxen_nic_disable_int(sds_ring); |
220 | napi_synchronize(n: &sds_ring->napi); |
221 | napi_disable(n: &sds_ring->napi); |
222 | } |
223 | } |
224 | |
225 | static int nx_set_dma_mask(struct netxen_adapter *adapter) |
226 | { |
227 | struct pci_dev *pdev = adapter->pdev; |
228 | uint64_t mask, cmask; |
229 | |
230 | adapter->pci_using_dac = 0; |
231 | |
232 | mask = DMA_BIT_MASK(32); |
233 | cmask = DMA_BIT_MASK(32); |
234 | |
235 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
236 | mask = DMA_BIT_MASK(35); |
237 | } else { |
238 | mask = DMA_BIT_MASK(39); |
239 | cmask = mask; |
240 | } |
241 | |
242 | if (dma_set_mask(dev: &pdev->dev, mask) == 0 && |
243 | dma_set_coherent_mask(dev: &pdev->dev, mask: cmask) == 0) { |
244 | adapter->pci_using_dac = 1; |
245 | return 0; |
246 | } |
247 | |
248 | return -EIO; |
249 | } |
250 | |
251 | /* Update addressable range if firmware supports it */ |
252 | static int |
253 | nx_update_dma_mask(struct netxen_adapter *adapter) |
254 | { |
255 | int change, shift, err; |
256 | uint64_t mask, old_mask, old_cmask; |
257 | struct pci_dev *pdev = adapter->pdev; |
258 | |
259 | change = 0; |
260 | |
261 | shift = NXRD32(adapter, CRB_DMA_SHIFT); |
262 | if (shift > 32) |
263 | return 0; |
264 | |
265 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) |
266 | change = 1; |
267 | else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) |
268 | change = 1; |
269 | |
270 | if (change) { |
271 | old_mask = pdev->dma_mask; |
272 | old_cmask = pdev->dev.coherent_dma_mask; |
273 | |
274 | mask = DMA_BIT_MASK(32+shift); |
275 | |
276 | err = dma_set_mask(dev: &pdev->dev, mask); |
277 | if (err) |
278 | goto err_out; |
279 | |
280 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
281 | |
282 | err = dma_set_coherent_mask(dev: &pdev->dev, mask); |
283 | if (err) |
284 | goto err_out; |
285 | } |
286 | dev_info(&pdev->dev, "using %d-bit dma mask\n" , 32+shift); |
287 | } |
288 | |
289 | return 0; |
290 | |
291 | err_out: |
292 | dma_set_mask(dev: &pdev->dev, mask: old_mask); |
293 | dma_set_coherent_mask(dev: &pdev->dev, mask: old_cmask); |
294 | return err; |
295 | } |
296 | |
297 | static int |
298 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) |
299 | { |
300 | u32 val, timeout; |
301 | |
302 | if (first_boot == 0x55555555) { |
303 | /* This is the first boot after power up */ |
304 | NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); |
305 | |
306 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
307 | return 0; |
308 | |
309 | /* PCI bus master workaround */ |
310 | first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); |
311 | if (!(first_boot & 0x4)) { |
312 | first_boot |= 0x4; |
313 | NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); |
314 | NXRD32(adapter, NETXEN_PCIE_REG(0x4)); |
315 | } |
316 | |
317 | /* This is the first boot after power up */ |
318 | first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); |
319 | if (first_boot != 0x80000f) { |
320 | /* clear the register for future unloads/loads */ |
321 | NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); |
322 | return -EIO; |
323 | } |
324 | |
325 | /* Start P2 boot loader */ |
326 | val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); |
327 | NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); |
328 | timeout = 0; |
329 | do { |
330 | msleep(msecs: 1); |
331 | val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
332 | |
333 | if (++timeout > 5000) |
334 | return -EIO; |
335 | |
336 | } while (val == NETXEN_BDINFO_MAGIC); |
337 | } |
338 | return 0; |
339 | } |
340 | |
341 | static void netxen_set_port_mode(struct netxen_adapter *adapter) |
342 | { |
343 | u32 val, data; |
344 | |
345 | val = adapter->ahw.board_type; |
346 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || |
347 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { |
348 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { |
349 | data = NETXEN_PORT_MODE_802_3_AP; |
350 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
351 | } else if (port_mode == NETXEN_PORT_MODE_XG) { |
352 | data = NETXEN_PORT_MODE_XG; |
353 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
354 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { |
355 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; |
356 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
357 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { |
358 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; |
359 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
360 | } else { |
361 | data = NETXEN_PORT_MODE_AUTO_NEG; |
362 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
363 | } |
364 | |
365 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && |
366 | (wol_port_mode != NETXEN_PORT_MODE_XG) && |
367 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && |
368 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { |
369 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
370 | } |
371 | NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); |
372 | } |
373 | } |
374 | |
375 | #define PCI_CAP_ID_GEN 0x10 |
376 | |
377 | static void netxen_pcie_strap_init(struct netxen_adapter *adapter) |
378 | { |
379 | u32 pdevfuncsave; |
380 | u32 c8c9value = 0; |
381 | u32 chicken = 0; |
382 | u32 control = 0; |
383 | int i, pos; |
384 | struct pci_dev *pdev; |
385 | |
386 | pdev = adapter->pdev; |
387 | |
388 | chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3)); |
389 | /* clear chicken3.25:24 */ |
390 | chicken &= 0xFCFFFFFF; |
391 | /* |
392 | * if gen1 and B0, set F1020 - if gen 2, do nothing |
393 | * if gen2 set to F1000 |
394 | */ |
395 | pos = pci_find_capability(dev: pdev, PCI_CAP_ID_GEN); |
396 | if (pos == 0xC0) { |
397 | pci_read_config_dword(dev: pdev, where: pos + 0x10, val: &control); |
398 | if ((control & 0x000F0000) != 0x00020000) { |
399 | /* set chicken3.24 if gen1 */ |
400 | chicken |= 0x01000000; |
401 | } |
402 | dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n" ); |
403 | c8c9value = 0xF1000; |
404 | } else { |
405 | /* set chicken3.24 if gen1 */ |
406 | chicken |= 0x01000000; |
407 | dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n" ); |
408 | if (adapter->ahw.revision_id == NX_P3_B0) |
409 | c8c9value = 0xF1020; |
410 | else |
411 | c8c9value = 0; |
412 | } |
413 | |
414 | NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken); |
415 | |
416 | if (!c8c9value) |
417 | return; |
418 | |
419 | pdevfuncsave = pdev->devfn; |
420 | if (pdevfuncsave & 0x07) |
421 | return; |
422 | |
423 | for (i = 0; i < 8; i++) { |
424 | pci_read_config_dword(dev: pdev, where: pos + 8, val: &control); |
425 | pci_read_config_dword(dev: pdev, where: pos + 8, val: &control); |
426 | pci_write_config_dword(dev: pdev, where: pos + 8, val: c8c9value); |
427 | pdev->devfn++; |
428 | } |
429 | pdev->devfn = pdevfuncsave; |
430 | } |
431 | |
432 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) |
433 | { |
434 | u32 control; |
435 | |
436 | if (pdev->msix_cap) { |
437 | pci_read_config_dword(dev: pdev, where: pdev->msix_cap, val: &control); |
438 | if (enable) |
439 | control |= PCI_MSIX_FLAGS_ENABLE; |
440 | else |
441 | control = 0; |
442 | pci_write_config_dword(dev: pdev, where: pdev->msix_cap, val: control); |
443 | } |
444 | } |
445 | |
446 | static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) |
447 | { |
448 | int i; |
449 | |
450 | for (i = 0; i < count; i++) |
451 | adapter->msix_entries[i].entry = i; |
452 | } |
453 | |
454 | static int |
455 | netxen_read_mac_addr(struct netxen_adapter *adapter) |
456 | { |
457 | int i; |
458 | unsigned char *p; |
459 | u64 mac_addr; |
460 | struct net_device *netdev = adapter->netdev; |
461 | struct pci_dev *pdev = adapter->pdev; |
462 | u8 addr[ETH_ALEN]; |
463 | |
464 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
465 | if (netxen_p3_get_mac_addr(adapter, mac: &mac_addr) != 0) |
466 | return -EIO; |
467 | } else { |
468 | if (netxen_get_flash_mac_addr(adapter, mac: &mac_addr) != 0) |
469 | return -EIO; |
470 | } |
471 | |
472 | p = (unsigned char *)&mac_addr; |
473 | for (i = 0; i < 6; i++) |
474 | addr[i] = *(p + 5 - i); |
475 | eth_hw_addr_set(dev: netdev, addr); |
476 | |
477 | memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); |
478 | |
479 | /* set station address */ |
480 | |
481 | if (!is_valid_ether_addr(addr: netdev->dev_addr)) |
482 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n" , netdev->dev_addr); |
483 | |
484 | return 0; |
485 | } |
486 | |
487 | static int netxen_nic_set_mac(struct net_device *netdev, void *p) |
488 | { |
489 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
490 | struct sockaddr *addr = p; |
491 | |
492 | if (!is_valid_ether_addr(addr: addr->sa_data)) |
493 | return -EADDRNOTAVAIL; |
494 | |
495 | if (netif_running(dev: netdev)) { |
496 | netif_device_detach(dev: netdev); |
497 | netxen_napi_disable(adapter); |
498 | } |
499 | |
500 | memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); |
501 | eth_hw_addr_set(dev: netdev, addr: addr->sa_data); |
502 | adapter->macaddr_set(adapter, addr->sa_data); |
503 | |
504 | if (netif_running(dev: netdev)) { |
505 | netif_device_attach(dev: netdev); |
506 | netxen_napi_enable(adapter); |
507 | } |
508 | return 0; |
509 | } |
510 | |
511 | static void netxen_set_multicast_list(struct net_device *dev) |
512 | { |
513 | struct netxen_adapter *adapter = netdev_priv(dev); |
514 | |
515 | adapter->set_multi(dev); |
516 | } |
517 | |
518 | static netdev_features_t netxen_fix_features(struct net_device *dev, |
519 | netdev_features_t features) |
520 | { |
521 | if (!(features & NETIF_F_RXCSUM)) { |
522 | netdev_info(dev, format: "disabling LRO as RXCSUM is off\n" ); |
523 | |
524 | features &= ~NETIF_F_LRO; |
525 | } |
526 | |
527 | return features; |
528 | } |
529 | |
530 | static int netxen_set_features(struct net_device *dev, |
531 | netdev_features_t features) |
532 | { |
533 | struct netxen_adapter *adapter = netdev_priv(dev); |
534 | int hw_lro; |
535 | |
536 | if (!((dev->features ^ features) & NETIF_F_LRO)) |
537 | return 0; |
538 | |
539 | hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED |
540 | : NETXEN_NIC_LRO_DISABLED; |
541 | |
542 | if (netxen_config_hw_lro(adapter, enable: hw_lro)) |
543 | return -EIO; |
544 | |
545 | if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) |
546 | return -EIO; |
547 | |
548 | return 0; |
549 | } |
550 | |
551 | static const struct net_device_ops netxen_netdev_ops = { |
552 | .ndo_open = netxen_nic_open, |
553 | .ndo_stop = netxen_nic_close, |
554 | .ndo_start_xmit = netxen_nic_xmit_frame, |
555 | .ndo_get_stats64 = netxen_nic_get_stats, |
556 | .ndo_validate_addr = eth_validate_addr, |
557 | .ndo_set_rx_mode = netxen_set_multicast_list, |
558 | .ndo_set_mac_address = netxen_nic_set_mac, |
559 | .ndo_change_mtu = netxen_nic_change_mtu, |
560 | .ndo_tx_timeout = netxen_tx_timeout, |
561 | .ndo_fix_features = netxen_fix_features, |
562 | .ndo_set_features = netxen_set_features, |
563 | }; |
564 | |
565 | static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter, |
566 | u32 mode) |
567 | { |
568 | NXWR32(adapter, NETXEN_INTR_MODE_REG, mode); |
569 | } |
570 | |
571 | static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter) |
572 | { |
573 | return NXRD32(adapter, NETXEN_INTR_MODE_REG); |
574 | } |
575 | |
576 | static void |
577 | netxen_initialize_interrupt_registers(struct netxen_adapter *adapter) |
578 | { |
579 | struct netxen_legacy_intr_set *legacy_intrp; |
580 | u32 tgt_status_reg, int_state_reg; |
581 | |
582 | if (adapter->ahw.revision_id >= NX_P3_B0) |
583 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; |
584 | else |
585 | legacy_intrp = &legacy_intr[0]; |
586 | |
587 | tgt_status_reg = legacy_intrp->tgt_status_reg; |
588 | int_state_reg = ISR_INT_STATE_REG; |
589 | |
590 | adapter->int_vec_bit = legacy_intrp->int_vec_bit; |
591 | adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg); |
592 | adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, |
593 | legacy_intrp->tgt_mask_reg); |
594 | adapter->pci_int_reg = netxen_get_ioaddr(adapter, |
595 | legacy_intrp->pci_int_reg); |
596 | adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); |
597 | |
598 | if (adapter->ahw.revision_id >= NX_P3_B1) |
599 | adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, |
600 | int_state_reg); |
601 | else |
602 | adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, |
603 | CRB_INT_VECTOR); |
604 | } |
605 | |
606 | static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter, |
607 | int num_msix) |
608 | { |
609 | struct pci_dev *pdev = adapter->pdev; |
610 | u32 value; |
611 | int err; |
612 | |
613 | if (adapter->msix_supported) { |
614 | netxen_init_msix_entries(adapter, count: num_msix); |
615 | err = pci_enable_msix_range(dev: pdev, entries: adapter->msix_entries, |
616 | minvec: num_msix, maxvec: num_msix); |
617 | if (err > 0) { |
618 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; |
619 | netxen_set_msix_bit(pdev, enable: 1); |
620 | |
621 | if (adapter->rss_supported) |
622 | adapter->max_sds_rings = num_msix; |
623 | |
624 | dev_info(&pdev->dev, "using msi-x interrupts\n" ); |
625 | return 0; |
626 | } |
627 | /* fall through for msi */ |
628 | } |
629 | |
630 | if (use_msi && !pci_enable_msi(dev: pdev)) { |
631 | value = msi_tgt_status[adapter->ahw.pci_func]; |
632 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
633 | adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value); |
634 | adapter->msix_entries[0].vector = pdev->irq; |
635 | dev_info(&pdev->dev, "using msi interrupts\n" ); |
636 | return 0; |
637 | } |
638 | |
639 | dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n" ); |
640 | return -EIO; |
641 | } |
642 | |
643 | static int netxen_setup_intr(struct netxen_adapter *adapter) |
644 | { |
645 | struct pci_dev *pdev = adapter->pdev; |
646 | int num_msix; |
647 | |
648 | if (adapter->rss_supported) |
649 | num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? |
650 | MSIX_ENTRIES_PER_ADAPTER : 2; |
651 | else |
652 | num_msix = 1; |
653 | |
654 | adapter->max_sds_rings = 1; |
655 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
656 | |
657 | netxen_initialize_interrupt_registers(adapter); |
658 | netxen_set_msix_bit(pdev, enable: 0); |
659 | |
660 | if (adapter->portnum == 0) { |
661 | if (!netxen_setup_msi_interrupts(adapter, num_msix)) |
662 | netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE); |
663 | else |
664 | netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE); |
665 | } else { |
666 | if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE && |
667 | netxen_setup_msi_interrupts(adapter, num_msix)) { |
668 | dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n" ); |
669 | return -EIO; |
670 | } |
671 | } |
672 | |
673 | if (!NETXEN_IS_MSI_FAMILY(adapter)) { |
674 | adapter->msix_entries[0].vector = pdev->irq; |
675 | dev_info(&pdev->dev, "using legacy interrupts\n" ); |
676 | } |
677 | return 0; |
678 | } |
679 | |
680 | static void |
681 | netxen_teardown_intr(struct netxen_adapter *adapter) |
682 | { |
683 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
684 | pci_disable_msix(dev: adapter->pdev); |
685 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
686 | pci_disable_msi(dev: adapter->pdev); |
687 | } |
688 | |
689 | static void |
690 | netxen_cleanup_pci_map(struct netxen_adapter *adapter) |
691 | { |
692 | if (adapter->ahw.db_base != NULL) |
693 | iounmap(addr: adapter->ahw.db_base); |
694 | if (adapter->ahw.pci_base0 != NULL) |
695 | iounmap(addr: adapter->ahw.pci_base0); |
696 | if (adapter->ahw.pci_base1 != NULL) |
697 | iounmap(addr: adapter->ahw.pci_base1); |
698 | if (adapter->ahw.pci_base2 != NULL) |
699 | iounmap(addr: adapter->ahw.pci_base2); |
700 | } |
701 | |
702 | static int |
703 | netxen_setup_pci_map(struct netxen_adapter *adapter) |
704 | { |
705 | void __iomem *db_ptr = NULL; |
706 | |
707 | resource_size_t mem_base, db_base; |
708 | unsigned long mem_len, db_len = 0; |
709 | |
710 | struct pci_dev *pdev = adapter->pdev; |
711 | int pci_func = adapter->ahw.pci_func; |
712 | struct netxen_hardware_context *ahw = &adapter->ahw; |
713 | |
714 | int err = 0; |
715 | |
716 | /* |
717 | * Set the CRB window to invalid. If any register in window 0 is |
718 | * accessed it should set the window to 0 and then reset it to 1. |
719 | */ |
720 | adapter->ahw.crb_win = -1; |
721 | adapter->ahw.ocm_win = -1; |
722 | |
723 | /* remap phys address */ |
724 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ |
725 | mem_len = pci_resource_len(pdev, 0); |
726 | |
727 | /* 128 Meg of memory */ |
728 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
729 | |
730 | ahw->pci_base0 = ioremap(offset: mem_base, FIRST_PAGE_GROUP_SIZE); |
731 | ahw->pci_base1 = ioremap(offset: mem_base + SECOND_PAGE_GROUP_START, |
732 | SECOND_PAGE_GROUP_SIZE); |
733 | ahw->pci_base2 = ioremap(offset: mem_base + THIRD_PAGE_GROUP_START, |
734 | THIRD_PAGE_GROUP_SIZE); |
735 | if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || |
736 | ahw->pci_base2 == NULL) { |
737 | dev_err(&pdev->dev, "failed to map PCI bar 0\n" ); |
738 | err = -EIO; |
739 | goto err_out; |
740 | } |
741 | |
742 | ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; |
743 | |
744 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { |
745 | |
746 | ahw->pci_base1 = ioremap(offset: mem_base, SECOND_PAGE_GROUP_SIZE); |
747 | ahw->pci_base2 = ioremap(offset: mem_base + THIRD_PAGE_GROUP_START - |
748 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); |
749 | if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { |
750 | dev_err(&pdev->dev, "failed to map PCI bar 0\n" ); |
751 | err = -EIO; |
752 | goto err_out; |
753 | } |
754 | |
755 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
756 | |
757 | ahw->pci_base0 = pci_ioremap_bar(pdev, bar: 0); |
758 | if (ahw->pci_base0 == NULL) { |
759 | dev_err(&pdev->dev, "failed to map PCI bar 0\n" ); |
760 | return -EIO; |
761 | } |
762 | ahw->pci_len0 = mem_len; |
763 | } else { |
764 | return -EIO; |
765 | } |
766 | |
767 | netxen_setup_hwops(adapter); |
768 | |
769 | dev_info(&pdev->dev, "%dMB memory map\n" , (int)(mem_len>>20)); |
770 | |
771 | if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { |
772 | adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, |
773 | NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); |
774 | |
775 | } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
776 | adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, |
777 | NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); |
778 | } |
779 | |
780 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
781 | goto skip_doorbell; |
782 | |
783 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
784 | db_len = pci_resource_len(pdev, 4); |
785 | |
786 | if (db_len == 0) { |
787 | printk(KERN_ERR "%s: doorbell is disabled\n" , |
788 | netxen_nic_driver_name); |
789 | err = -EIO; |
790 | goto err_out; |
791 | } |
792 | |
793 | db_ptr = ioremap(offset: db_base, NETXEN_DB_MAPSIZE_BYTES); |
794 | if (!db_ptr) { |
795 | printk(KERN_ERR "%s: Failed to allocate doorbell map." , |
796 | netxen_nic_driver_name); |
797 | err = -EIO; |
798 | goto err_out; |
799 | } |
800 | |
801 | skip_doorbell: |
802 | adapter->ahw.db_base = db_ptr; |
803 | adapter->ahw.db_len = db_len; |
804 | return 0; |
805 | |
806 | err_out: |
807 | netxen_cleanup_pci_map(adapter); |
808 | return err; |
809 | } |
810 | |
811 | static void |
812 | netxen_check_options(struct netxen_adapter *adapter) |
813 | { |
814 | u32 fw_major, fw_minor, fw_build, prev_fw_version; |
815 | char brd_name[NETXEN_MAX_SHORT_NAME]; |
816 | char serial_num[32]; |
817 | int i, offset, val, err; |
818 | __le32 *ptr32; |
819 | struct pci_dev *pdev = adapter->pdev; |
820 | |
821 | adapter->driver_mismatch = 0; |
822 | |
823 | ptr32 = (__le32 *)&serial_num; |
824 | offset = NX_FW_SERIAL_NUM_OFFSET; |
825 | for (i = 0; i < 8; i++) { |
826 | err = netxen_rom_fast_read(adapter, addr: offset, valp: &val); |
827 | if (err) { |
828 | dev_err(&pdev->dev, "error reading board info\n" ); |
829 | adapter->driver_mismatch = 1; |
830 | return; |
831 | } |
832 | ptr32[i] = cpu_to_le32(val); |
833 | offset += sizeof(u32); |
834 | } |
835 | |
836 | fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); |
837 | fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); |
838 | fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); |
839 | prev_fw_version = adapter->fw_version; |
840 | adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); |
841 | |
842 | /* Get FW Mini Coredump template and store it */ |
843 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
844 | if (adapter->mdump.md_template == NULL || |
845 | adapter->fw_version > prev_fw_version) { |
846 | kfree(objp: adapter->mdump.md_template); |
847 | adapter->mdump.md_template = NULL; |
848 | err = netxen_setup_minidump(adapter); |
849 | if (err) |
850 | dev_err(&adapter->pdev->dev, |
851 | "Failed to setup minidump rcode = %d\n" , err); |
852 | } |
853 | } |
854 | |
855 | if (adapter->portnum == 0) { |
856 | if (netxen_nic_get_brd_name_by_type(type: adapter->ahw.board_type, |
857 | name: brd_name)) |
858 | strcpy(p: serial_num, q: "Unknown" ); |
859 | |
860 | pr_info("%s: %s Board S/N %s Chip rev 0x%x\n" , |
861 | module_name(THIS_MODULE), |
862 | brd_name, serial_num, adapter->ahw.revision_id); |
863 | } |
864 | |
865 | if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { |
866 | adapter->driver_mismatch = 1; |
867 | dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n" , |
868 | fw_major, fw_minor, fw_build); |
869 | return; |
870 | } |
871 | |
872 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
873 | i = NXRD32(adapter, NETXEN_SRE_MISC); |
874 | adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; |
875 | } |
876 | |
877 | dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n" , |
878 | NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build, |
879 | adapter->ahw.cut_through ? "cut-through" : "legacy" ); |
880 | |
881 | if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) |
882 | adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); |
883 | |
884 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { |
885 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; |
886 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; |
887 | } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { |
888 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; |
889 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; |
890 | } |
891 | |
892 | adapter->msix_supported = 0; |
893 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
894 | adapter->msix_supported = !!use_msi_x; |
895 | adapter->rss_supported = !!use_msi_x; |
896 | } else { |
897 | u32 flashed_ver = 0; |
898 | netxen_rom_fast_read(adapter, |
899 | NX_FW_VERSION_OFFSET, valp: (int *)&flashed_ver); |
900 | flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); |
901 | |
902 | if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { |
903 | switch (adapter->ahw.board_type) { |
904 | case NETXEN_BRDTYPE_P2_SB31_10G: |
905 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: |
906 | adapter->msix_supported = !!use_msi_x; |
907 | adapter->rss_supported = !!use_msi_x; |
908 | break; |
909 | default: |
910 | break; |
911 | } |
912 | } |
913 | } |
914 | |
915 | adapter->num_txd = MAX_CMD_DESCRIPTORS; |
916 | |
917 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
918 | adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; |
919 | adapter->max_rds_rings = 3; |
920 | } else { |
921 | adapter->num_lro_rxd = 0; |
922 | adapter->max_rds_rings = 2; |
923 | } |
924 | } |
925 | |
926 | static int |
927 | netxen_start_firmware(struct netxen_adapter *adapter) |
928 | { |
929 | int val, err, first_boot; |
930 | struct pci_dev *pdev = adapter->pdev; |
931 | |
932 | /* required for NX2031 dummy dma */ |
933 | err = nx_set_dma_mask(adapter); |
934 | if (err) |
935 | return err; |
936 | |
937 | err = netxen_can_start_firmware(adapter); |
938 | |
939 | if (err < 0) |
940 | return err; |
941 | |
942 | if (!err) |
943 | goto wait_init; |
944 | |
945 | first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
946 | |
947 | err = netxen_check_hw_init(adapter, first_boot); |
948 | if (err) { |
949 | dev_err(&pdev->dev, "error in init HW init sequence\n" ); |
950 | return err; |
951 | } |
952 | |
953 | netxen_request_firmware(adapter); |
954 | |
955 | err = netxen_need_fw_reset(adapter); |
956 | if (err < 0) |
957 | goto err_out; |
958 | if (err == 0) |
959 | goto pcie_strap_init; |
960 | |
961 | if (first_boot != 0x55555555) { |
962 | NXWR32(adapter, CRB_CMDPEG_STATE, 0); |
963 | netxen_pinit_from_rom(adapter); |
964 | msleep(msecs: 1); |
965 | } |
966 | |
967 | NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); |
968 | NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); |
969 | NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); |
970 | |
971 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
972 | netxen_set_port_mode(adapter); |
973 | |
974 | err = netxen_load_firmware(adapter); |
975 | if (err) |
976 | goto err_out; |
977 | |
978 | netxen_release_firmware(adapter); |
979 | |
980 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
981 | |
982 | /* Initialize multicast addr pool owners */ |
983 | val = 0x7654; |
984 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
985 | val |= 0x0f000000; |
986 | NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); |
987 | |
988 | } |
989 | |
990 | err = netxen_init_dummy_dma(adapter); |
991 | if (err) |
992 | goto err_out; |
993 | |
994 | /* |
995 | * Tell the hardware our version number. |
996 | */ |
997 | val = (_NETXEN_NIC_LINUX_MAJOR << 16) |
998 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
999 | | (_NETXEN_NIC_LINUX_SUBVERSION); |
1000 | NXWR32(adapter, CRB_DRIVER_VERSION, val); |
1001 | |
1002 | pcie_strap_init: |
1003 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1004 | netxen_pcie_strap_init(adapter); |
1005 | |
1006 | wait_init: |
1007 | /* Handshake with the card before we register the devices. */ |
1008 | err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
1009 | if (err) { |
1010 | netxen_free_dummy_dma(adapter); |
1011 | goto err_out; |
1012 | } |
1013 | |
1014 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); |
1015 | |
1016 | nx_update_dma_mask(adapter); |
1017 | |
1018 | netxen_check_options(adapter); |
1019 | |
1020 | adapter->need_fw_reset = 0; |
1021 | |
1022 | /* fall through and release firmware */ |
1023 | |
1024 | err_out: |
1025 | netxen_release_firmware(adapter); |
1026 | return err; |
1027 | } |
1028 | |
1029 | static int |
1030 | netxen_nic_request_irq(struct netxen_adapter *adapter) |
1031 | { |
1032 | irq_handler_t handler; |
1033 | struct nx_host_sds_ring *sds_ring; |
1034 | int err, ring; |
1035 | |
1036 | unsigned long flags = 0; |
1037 | struct net_device *netdev = adapter->netdev; |
1038 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
1039 | |
1040 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
1041 | handler = netxen_msix_intr; |
1042 | else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
1043 | handler = netxen_msi_intr; |
1044 | else { |
1045 | flags |= IRQF_SHARED; |
1046 | handler = netxen_intr; |
1047 | } |
1048 | adapter->irq = netdev->irq; |
1049 | |
1050 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
1051 | sds_ring = &recv_ctx->sds_rings[ring]; |
1052 | sprintf(buf: sds_ring->name, fmt: "%s[%d]" , netdev->name, ring); |
1053 | err = request_irq(irq: sds_ring->irq, handler, |
1054 | flags, name: sds_ring->name, dev: sds_ring); |
1055 | if (err) |
1056 | return err; |
1057 | } |
1058 | |
1059 | return 0; |
1060 | } |
1061 | |
1062 | static void |
1063 | netxen_nic_free_irq(struct netxen_adapter *adapter) |
1064 | { |
1065 | int ring; |
1066 | struct nx_host_sds_ring *sds_ring; |
1067 | |
1068 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
1069 | |
1070 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
1071 | sds_ring = &recv_ctx->sds_rings[ring]; |
1072 | free_irq(sds_ring->irq, sds_ring); |
1073 | } |
1074 | } |
1075 | |
1076 | static void |
1077 | netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) |
1078 | { |
1079 | adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; |
1080 | adapter->coal.normal.data.rx_time_us = |
1081 | NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; |
1082 | adapter->coal.normal.data.rx_packets = |
1083 | NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; |
1084 | adapter->coal.normal.data.tx_time_us = |
1085 | NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; |
1086 | adapter->coal.normal.data.tx_packets = |
1087 | NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; |
1088 | } |
1089 | |
1090 | /* with rtnl_lock */ |
1091 | static int |
1092 | __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) |
1093 | { |
1094 | int err; |
1095 | |
1096 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
1097 | return -EIO; |
1098 | |
1099 | err = adapter->init_port(adapter, adapter->physical_port); |
1100 | if (err) { |
1101 | printk(KERN_ERR "%s: Failed to initialize port %d\n" , |
1102 | netxen_nic_driver_name, adapter->portnum); |
1103 | return err; |
1104 | } |
1105 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
1106 | adapter->macaddr_set(adapter, adapter->mac_addr); |
1107 | |
1108 | adapter->set_multi(netdev); |
1109 | adapter->set_mtu(adapter, netdev->mtu); |
1110 | |
1111 | adapter->ahw.linkup = 0; |
1112 | |
1113 | if (adapter->max_sds_rings > 1) |
1114 | netxen_config_rss(adapter, enable: 1); |
1115 | |
1116 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1117 | netxen_config_intr_coalesce(adapter); |
1118 | |
1119 | if (netdev->features & NETIF_F_LRO) |
1120 | netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); |
1121 | |
1122 | netxen_napi_enable(adapter); |
1123 | |
1124 | if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) |
1125 | netxen_linkevent_request(adapter, enable: 1); |
1126 | else |
1127 | netxen_nic_set_link_parameters(adapter); |
1128 | |
1129 | set_bit(__NX_DEV_UP, addr: &adapter->state); |
1130 | return 0; |
1131 | } |
1132 | |
1133 | /* Usage: During resume and firmware recovery module.*/ |
1134 | |
1135 | static inline int |
1136 | netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) |
1137 | { |
1138 | int err = 0; |
1139 | |
1140 | rtnl_lock(); |
1141 | if (netif_running(dev: netdev)) |
1142 | err = __netxen_nic_up(adapter, netdev); |
1143 | rtnl_unlock(); |
1144 | |
1145 | return err; |
1146 | } |
1147 | |
1148 | /* with rtnl_lock */ |
1149 | static void |
1150 | __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) |
1151 | { |
1152 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
1153 | return; |
1154 | |
1155 | if (!test_and_clear_bit(__NX_DEV_UP, addr: &adapter->state)) |
1156 | return; |
1157 | |
1158 | smp_mb(); |
1159 | netif_carrier_off(dev: netdev); |
1160 | netif_tx_disable(dev: netdev); |
1161 | |
1162 | if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) |
1163 | netxen_linkevent_request(adapter, enable: 0); |
1164 | |
1165 | if (adapter->stop_port) |
1166 | adapter->stop_port(adapter); |
1167 | |
1168 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1169 | netxen_p3_free_mac_list(adapter); |
1170 | |
1171 | adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); |
1172 | |
1173 | netxen_napi_disable(adapter); |
1174 | |
1175 | netxen_release_tx_buffers(adapter); |
1176 | } |
1177 | |
1178 | /* Usage: During suspend and firmware recovery module */ |
1179 | |
1180 | static inline void |
1181 | netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) |
1182 | { |
1183 | rtnl_lock(); |
1184 | if (netif_running(dev: netdev)) |
1185 | __netxen_nic_down(adapter, netdev); |
1186 | rtnl_unlock(); |
1187 | |
1188 | } |
1189 | |
1190 | static int |
1191 | netxen_nic_attach(struct netxen_adapter *adapter) |
1192 | { |
1193 | struct net_device *netdev = adapter->netdev; |
1194 | struct pci_dev *pdev = adapter->pdev; |
1195 | int err, ring; |
1196 | struct nx_host_rds_ring *rds_ring; |
1197 | struct nx_host_tx_ring *tx_ring; |
1198 | u32 capab2; |
1199 | |
1200 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) |
1201 | return 0; |
1202 | |
1203 | err = netxen_init_firmware(adapter); |
1204 | if (err) |
1205 | return err; |
1206 | |
1207 | adapter->flags &= ~NETXEN_FW_MSS_CAP; |
1208 | if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) { |
1209 | capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2); |
1210 | if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG) |
1211 | adapter->flags |= NETXEN_FW_MSS_CAP; |
1212 | } |
1213 | |
1214 | err = netxen_napi_add(adapter, netdev); |
1215 | if (err) |
1216 | return err; |
1217 | |
1218 | err = netxen_alloc_sw_resources(adapter); |
1219 | if (err) { |
1220 | printk(KERN_ERR "%s: Error in setting sw resources\n" , |
1221 | netdev->name); |
1222 | return err; |
1223 | } |
1224 | |
1225 | err = netxen_alloc_hw_resources(adapter); |
1226 | if (err) { |
1227 | printk(KERN_ERR "%s: Error in setting hw resources\n" , |
1228 | netdev->name); |
1229 | goto err_out_free_sw; |
1230 | } |
1231 | |
1232 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
1233 | tx_ring = adapter->tx_ring; |
1234 | tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, |
1235 | crb_cmd_producer[adapter->portnum]); |
1236 | tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, |
1237 | crb_cmd_consumer[adapter->portnum]); |
1238 | |
1239 | tx_ring->producer = 0; |
1240 | tx_ring->sw_consumer = 0; |
1241 | |
1242 | netxen_nic_update_cmd_producer(adapter, tx_ring); |
1243 | netxen_nic_update_cmd_consumer(adapter, tx_ring); |
1244 | } |
1245 | |
1246 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
1247 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; |
1248 | netxen_post_rx_buffers(adapter, ringid: ring, rds_ring); |
1249 | } |
1250 | |
1251 | err = netxen_nic_request_irq(adapter); |
1252 | if (err) { |
1253 | dev_err(&pdev->dev, "%s: failed to setup interrupt\n" , |
1254 | netdev->name); |
1255 | goto err_out_free_rxbuf; |
1256 | } |
1257 | |
1258 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1259 | netxen_nic_init_coalesce_defaults(adapter); |
1260 | |
1261 | netxen_create_sysfs_entries(adapter); |
1262 | |
1263 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; |
1264 | return 0; |
1265 | |
1266 | err_out_free_rxbuf: |
1267 | netxen_release_rx_buffers(adapter); |
1268 | netxen_free_hw_resources(adapter); |
1269 | err_out_free_sw: |
1270 | netxen_free_sw_resources(adapter); |
1271 | return err; |
1272 | } |
1273 | |
1274 | static void |
1275 | netxen_nic_detach(struct netxen_adapter *adapter) |
1276 | { |
1277 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
1278 | return; |
1279 | |
1280 | netxen_remove_sysfs_entries(adapter); |
1281 | |
1282 | netxen_free_hw_resources(adapter); |
1283 | netxen_release_rx_buffers(adapter); |
1284 | netxen_nic_free_irq(adapter); |
1285 | netxen_napi_del(adapter); |
1286 | netxen_free_sw_resources(adapter); |
1287 | |
1288 | adapter->is_up = 0; |
1289 | } |
1290 | |
1291 | int |
1292 | netxen_nic_reset_context(struct netxen_adapter *adapter) |
1293 | { |
1294 | int err = 0; |
1295 | struct net_device *netdev = adapter->netdev; |
1296 | |
1297 | if (test_and_set_bit(__NX_RESETTING, addr: &adapter->state)) |
1298 | return -EBUSY; |
1299 | |
1300 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
1301 | |
1302 | netif_device_detach(dev: netdev); |
1303 | |
1304 | if (netif_running(dev: netdev)) |
1305 | __netxen_nic_down(adapter, netdev); |
1306 | |
1307 | netxen_nic_detach(adapter); |
1308 | |
1309 | if (netif_running(dev: netdev)) { |
1310 | err = netxen_nic_attach(adapter); |
1311 | if (!err) |
1312 | err = __netxen_nic_up(adapter, netdev); |
1313 | |
1314 | if (err) |
1315 | goto done; |
1316 | } |
1317 | |
1318 | netif_device_attach(dev: netdev); |
1319 | } |
1320 | |
1321 | done: |
1322 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
1323 | return err; |
1324 | } |
1325 | |
1326 | static int |
1327 | netxen_setup_netdev(struct netxen_adapter *adapter, |
1328 | struct net_device *netdev) |
1329 | { |
1330 | int err = 0; |
1331 | struct pci_dev *pdev = adapter->pdev; |
1332 | |
1333 | adapter->mc_enabled = 0; |
1334 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1335 | adapter->max_mc_count = 38; |
1336 | else |
1337 | adapter->max_mc_count = 16; |
1338 | |
1339 | netdev->netdev_ops = &netxen_netdev_ops; |
1340 | netdev->watchdog_timeo = 5*HZ; |
1341 | |
1342 | netxen_nic_change_mtu(netdev, new_mtu: netdev->mtu); |
1343 | |
1344 | netdev->ethtool_ops = &netxen_nic_ethtool_ops; |
1345 | |
1346 | netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | |
1347 | NETIF_F_RXCSUM; |
1348 | |
1349 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1350 | netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; |
1351 | |
1352 | netdev->vlan_features |= netdev->hw_features; |
1353 | |
1354 | if (adapter->pci_using_dac) { |
1355 | netdev->features |= NETIF_F_HIGHDMA; |
1356 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
1357 | } |
1358 | |
1359 | if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) |
1360 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; |
1361 | |
1362 | if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) |
1363 | netdev->hw_features |= NETIF_F_LRO; |
1364 | |
1365 | netdev->features |= netdev->hw_features; |
1366 | |
1367 | netdev->irq = adapter->msix_entries[0].vector; |
1368 | |
1369 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); |
1370 | |
1371 | if (netxen_read_mac_addr(adapter)) |
1372 | dev_warn(&pdev->dev, "failed to read mac addr\n" ); |
1373 | |
1374 | netif_carrier_off(dev: netdev); |
1375 | |
1376 | err = register_netdev(dev: netdev); |
1377 | if (err) { |
1378 | dev_err(&pdev->dev, "failed to register net device\n" ); |
1379 | return err; |
1380 | } |
1381 | |
1382 | return 0; |
1383 | } |
1384 | |
1385 | #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01) |
1386 | #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00) |
1387 | |
1388 | static void netxen_read_ula_info(struct netxen_adapter *adapter) |
1389 | { |
1390 | u32 temp; |
1391 | |
1392 | /* Print ULA info only once for an adapter */ |
1393 | if (adapter->portnum != 0) |
1394 | return; |
1395 | |
1396 | temp = NXRD32(adapter, NETXEN_ULA_KEY); |
1397 | switch (temp) { |
1398 | case NETXEN_ULA_ADAPTER_KEY: |
1399 | dev_info(&adapter->pdev->dev, "ULA adapter" ); |
1400 | break; |
1401 | case NETXEN_NON_ULA_ADAPTER_KEY: |
1402 | dev_info(&adapter->pdev->dev, "non ULA adapter" ); |
1403 | break; |
1404 | default: |
1405 | break; |
1406 | } |
1407 | |
1408 | return; |
1409 | } |
1410 | |
1411 | #ifdef CONFIG_PCIEAER |
1412 | static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) |
1413 | { |
1414 | struct pci_dev *pdev = adapter->pdev; |
1415 | struct pci_dev *root = pdev->bus->self; |
1416 | u32 aer_pos; |
1417 | |
1418 | /* root bus? */ |
1419 | if (!root) |
1420 | return; |
1421 | |
1422 | if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && |
1423 | adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) |
1424 | return; |
1425 | |
1426 | if (pci_pcie_type(dev: root) != PCI_EXP_TYPE_ROOT_PORT) |
1427 | return; |
1428 | |
1429 | aer_pos = pci_find_ext_capability(dev: root, PCI_EXT_CAP_ID_ERR); |
1430 | if (!aer_pos) |
1431 | return; |
1432 | |
1433 | pci_write_config_dword(dev: root, where: aer_pos + PCI_ERR_COR_MASK, val: 0xffff); |
1434 | } |
1435 | #endif |
1436 | |
1437 | static int |
1438 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
1439 | { |
1440 | struct net_device *netdev = NULL; |
1441 | struct netxen_adapter *adapter = NULL; |
1442 | int i = 0, err; |
1443 | int pci_func_id = PCI_FUNC(pdev->devfn); |
1444 | uint8_t revision_id; |
1445 | u32 val; |
1446 | |
1447 | if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { |
1448 | pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n" , |
1449 | module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); |
1450 | return -ENODEV; |
1451 | } |
1452 | |
1453 | if ((err = pci_enable_device(dev: pdev))) |
1454 | return err; |
1455 | |
1456 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
1457 | err = -ENODEV; |
1458 | goto err_out_disable_pdev; |
1459 | } |
1460 | |
1461 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) |
1462 | goto err_out_disable_pdev; |
1463 | |
1464 | pci_set_master(dev: pdev); |
1465 | |
1466 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); |
1467 | if(!netdev) { |
1468 | err = -ENOMEM; |
1469 | goto err_out_free_res; |
1470 | } |
1471 | |
1472 | SET_NETDEV_DEV(netdev, &pdev->dev); |
1473 | |
1474 | adapter = netdev_priv(dev: netdev); |
1475 | adapter->netdev = netdev; |
1476 | adapter->pdev = pdev; |
1477 | adapter->ahw.pci_func = pci_func_id; |
1478 | |
1479 | revision_id = pdev->revision; |
1480 | adapter->ahw.revision_id = revision_id; |
1481 | |
1482 | rwlock_init(&adapter->ahw.crb_lock); |
1483 | spin_lock_init(&adapter->ahw.mem_lock); |
1484 | |
1485 | spin_lock_init(&adapter->tx_clean_lock); |
1486 | INIT_LIST_HEAD(list: &adapter->mac_list); |
1487 | INIT_LIST_HEAD(list: &adapter->ip_list); |
1488 | |
1489 | err = netxen_setup_pci_map(adapter); |
1490 | if (err) |
1491 | goto err_out_free_netdev; |
1492 | |
1493 | /* This will be reset for mezz cards */ |
1494 | adapter->portnum = pci_func_id; |
1495 | |
1496 | err = netxen_nic_get_board_info(adapter); |
1497 | if (err) { |
1498 | dev_err(&pdev->dev, "Error getting board config info.\n" ); |
1499 | goto err_out_iounmap; |
1500 | } |
1501 | |
1502 | #ifdef CONFIG_PCIEAER |
1503 | netxen_mask_aer_correctable(adapter); |
1504 | #endif |
1505 | |
1506 | /* Mezz cards have PCI function 0,2,3 enabled */ |
1507 | switch (adapter->ahw.board_type) { |
1508 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: |
1509 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: |
1510 | if (pci_func_id >= 2) |
1511 | adapter->portnum = pci_func_id - 2; |
1512 | break; |
1513 | default: |
1514 | break; |
1515 | } |
1516 | |
1517 | err = netxen_check_flash_fw_compatibility(adapter); |
1518 | if (err) |
1519 | goto err_out_iounmap; |
1520 | |
1521 | if (adapter->portnum == 0) { |
1522 | val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
1523 | if (val != 0xffffffff && val != 0) { |
1524 | NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); |
1525 | adapter->need_fw_reset = 1; |
1526 | } |
1527 | } |
1528 | |
1529 | err = netxen_start_firmware(adapter); |
1530 | if (err) |
1531 | goto err_out_decr_ref; |
1532 | |
1533 | /* |
1534 | * See if the firmware gave us a virtual-physical port mapping. |
1535 | */ |
1536 | adapter->physical_port = adapter->portnum; |
1537 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
1538 | i = NXRD32(adapter, CRB_V2P(adapter->portnum)); |
1539 | if (i != 0x55555555) |
1540 | adapter->physical_port = i; |
1541 | } |
1542 | |
1543 | /* MTU range: 0 - 8000 (P2) or 9600 (P3) */ |
1544 | netdev->min_mtu = 0; |
1545 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
1546 | netdev->max_mtu = P3_MAX_MTU; |
1547 | else |
1548 | netdev->max_mtu = P2_MAX_MTU; |
1549 | |
1550 | netxen_nic_clear_stats(adapter); |
1551 | |
1552 | err = netxen_setup_intr(adapter); |
1553 | |
1554 | if (err) { |
1555 | dev_err(&adapter->pdev->dev, |
1556 | "Failed to setup interrupts, error = %d\n" , err); |
1557 | goto err_out_disable_msi; |
1558 | } |
1559 | |
1560 | netxen_read_ula_info(adapter); |
1561 | |
1562 | err = netxen_setup_netdev(adapter, netdev); |
1563 | if (err) |
1564 | goto err_out_disable_msi; |
1565 | |
1566 | pci_set_drvdata(pdev, data: adapter); |
1567 | |
1568 | netxen_schedule_work(adapter, func: netxen_fw_poll_work, FW_POLL_DELAY); |
1569 | |
1570 | switch (adapter->ahw.port_type) { |
1571 | case NETXEN_NIC_GBE: |
1572 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n" , |
1573 | adapter->netdev->name); |
1574 | break; |
1575 | case NETXEN_NIC_XGBE: |
1576 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n" , |
1577 | adapter->netdev->name); |
1578 | break; |
1579 | } |
1580 | |
1581 | netxen_create_diag_entries(adapter); |
1582 | |
1583 | return 0; |
1584 | |
1585 | err_out_disable_msi: |
1586 | netxen_teardown_intr(adapter); |
1587 | |
1588 | netxen_free_dummy_dma(adapter); |
1589 | |
1590 | err_out_decr_ref: |
1591 | nx_decr_dev_ref_cnt(adapter); |
1592 | |
1593 | err_out_iounmap: |
1594 | netxen_cleanup_pci_map(adapter); |
1595 | |
1596 | err_out_free_netdev: |
1597 | free_netdev(dev: netdev); |
1598 | |
1599 | err_out_free_res: |
1600 | pci_release_regions(pdev); |
1601 | |
1602 | err_out_disable_pdev: |
1603 | pci_disable_device(dev: pdev); |
1604 | return err; |
1605 | } |
1606 | |
1607 | static |
1608 | void netxen_cleanup_minidump(struct netxen_adapter *adapter) |
1609 | { |
1610 | kfree(objp: adapter->mdump.md_template); |
1611 | adapter->mdump.md_template = NULL; |
1612 | |
1613 | if (adapter->mdump.md_capture_buff) { |
1614 | vfree(addr: adapter->mdump.md_capture_buff); |
1615 | adapter->mdump.md_capture_buff = NULL; |
1616 | } |
1617 | } |
1618 | |
1619 | static void netxen_nic_remove(struct pci_dev *pdev) |
1620 | { |
1621 | struct netxen_adapter *adapter; |
1622 | struct net_device *netdev; |
1623 | |
1624 | adapter = pci_get_drvdata(pdev); |
1625 | if (adapter == NULL) |
1626 | return; |
1627 | |
1628 | netdev = adapter->netdev; |
1629 | |
1630 | netxen_cancel_fw_work(adapter); |
1631 | |
1632 | unregister_netdev(dev: netdev); |
1633 | |
1634 | cancel_work_sync(work: &adapter->tx_timeout_task); |
1635 | |
1636 | netxen_free_ip_list(adapter, false); |
1637 | netxen_nic_detach(adapter); |
1638 | |
1639 | nx_decr_dev_ref_cnt(adapter); |
1640 | |
1641 | if (adapter->portnum == 0) |
1642 | netxen_free_dummy_dma(adapter); |
1643 | |
1644 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
1645 | |
1646 | netxen_teardown_intr(adapter); |
1647 | netxen_set_interrupt_mode(adapter, mode: 0); |
1648 | netxen_remove_diag_entries(adapter); |
1649 | |
1650 | netxen_cleanup_pci_map(adapter); |
1651 | |
1652 | netxen_release_firmware(adapter); |
1653 | |
1654 | if (NX_IS_REVISION_P3(pdev->revision)) |
1655 | netxen_cleanup_minidump(adapter); |
1656 | |
1657 | pci_release_regions(pdev); |
1658 | pci_disable_device(dev: pdev); |
1659 | |
1660 | free_netdev(dev: netdev); |
1661 | } |
1662 | |
1663 | static void netxen_nic_detach_func(struct netxen_adapter *adapter) |
1664 | { |
1665 | struct net_device *netdev = adapter->netdev; |
1666 | |
1667 | netif_device_detach(dev: netdev); |
1668 | |
1669 | netxen_cancel_fw_work(adapter); |
1670 | |
1671 | if (netif_running(dev: netdev)) |
1672 | netxen_nic_down(adapter, netdev); |
1673 | |
1674 | cancel_work_sync(work: &adapter->tx_timeout_task); |
1675 | |
1676 | netxen_nic_detach(adapter); |
1677 | |
1678 | if (adapter->portnum == 0) |
1679 | netxen_free_dummy_dma(adapter); |
1680 | |
1681 | nx_decr_dev_ref_cnt(adapter); |
1682 | |
1683 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
1684 | } |
1685 | |
1686 | static int netxen_nic_attach_late_func(struct pci_dev *pdev) |
1687 | { |
1688 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); |
1689 | struct net_device *netdev = adapter->netdev; |
1690 | int err; |
1691 | |
1692 | pci_set_master(dev: pdev); |
1693 | |
1694 | adapter->ahw.crb_win = -1; |
1695 | adapter->ahw.ocm_win = -1; |
1696 | |
1697 | err = netxen_start_firmware(adapter); |
1698 | if (err) { |
1699 | dev_err(&pdev->dev, "failed to start firmware\n" ); |
1700 | return err; |
1701 | } |
1702 | |
1703 | if (netif_running(dev: netdev)) { |
1704 | err = netxen_nic_attach(adapter); |
1705 | if (err) |
1706 | goto err_out; |
1707 | |
1708 | err = netxen_nic_up(adapter, netdev); |
1709 | if (err) |
1710 | goto err_out_detach; |
1711 | |
1712 | netxen_restore_indev_addr(dev: netdev, NETDEV_UP); |
1713 | } |
1714 | |
1715 | netif_device_attach(dev: netdev); |
1716 | netxen_schedule_work(adapter, func: netxen_fw_poll_work, FW_POLL_DELAY); |
1717 | return 0; |
1718 | |
1719 | err_out_detach: |
1720 | netxen_nic_detach(adapter); |
1721 | err_out: |
1722 | nx_decr_dev_ref_cnt(adapter); |
1723 | return err; |
1724 | } |
1725 | |
1726 | static int netxen_nic_attach_func(struct pci_dev *pdev) |
1727 | { |
1728 | int err; |
1729 | |
1730 | err = pci_enable_device(dev: pdev); |
1731 | if (err) |
1732 | return err; |
1733 | |
1734 | pci_set_power_state(dev: pdev, PCI_D0); |
1735 | pci_restore_state(dev: pdev); |
1736 | |
1737 | return netxen_nic_attach_late_func(pdev); |
1738 | } |
1739 | |
1740 | static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, |
1741 | pci_channel_state_t state) |
1742 | { |
1743 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); |
1744 | |
1745 | if (state == pci_channel_io_perm_failure) |
1746 | return PCI_ERS_RESULT_DISCONNECT; |
1747 | |
1748 | if (nx_dev_request_aer(adapter)) |
1749 | return PCI_ERS_RESULT_RECOVERED; |
1750 | |
1751 | netxen_nic_detach_func(adapter); |
1752 | |
1753 | pci_disable_device(dev: pdev); |
1754 | |
1755 | return PCI_ERS_RESULT_NEED_RESET; |
1756 | } |
1757 | |
1758 | static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) |
1759 | { |
1760 | int err = 0; |
1761 | |
1762 | err = netxen_nic_attach_func(pdev); |
1763 | |
1764 | return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; |
1765 | } |
1766 | |
1767 | static void netxen_nic_shutdown(struct pci_dev *pdev) |
1768 | { |
1769 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); |
1770 | |
1771 | netxen_nic_detach_func(adapter); |
1772 | |
1773 | if (pci_save_state(dev: pdev)) |
1774 | return; |
1775 | |
1776 | if (netxen_nic_wol_supported(adapter)) { |
1777 | pci_enable_wake(dev: pdev, PCI_D3cold, enable: 1); |
1778 | pci_enable_wake(dev: pdev, PCI_D3hot, enable: 1); |
1779 | } |
1780 | |
1781 | pci_disable_device(dev: pdev); |
1782 | } |
1783 | |
1784 | static int __maybe_unused |
1785 | netxen_nic_suspend(struct device *dev_d) |
1786 | { |
1787 | struct netxen_adapter *adapter = dev_get_drvdata(dev: dev_d); |
1788 | |
1789 | netxen_nic_detach_func(adapter); |
1790 | |
1791 | if (netxen_nic_wol_supported(adapter)) |
1792 | device_wakeup_enable(dev: dev_d); |
1793 | |
1794 | return 0; |
1795 | } |
1796 | |
1797 | static int __maybe_unused |
1798 | netxen_nic_resume(struct device *dev_d) |
1799 | { |
1800 | return netxen_nic_attach_late_func(to_pci_dev(dev_d)); |
1801 | } |
1802 | |
1803 | static int netxen_nic_open(struct net_device *netdev) |
1804 | { |
1805 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
1806 | int err = 0; |
1807 | |
1808 | if (adapter->driver_mismatch) |
1809 | return -EIO; |
1810 | |
1811 | err = netxen_nic_attach(adapter); |
1812 | if (err) |
1813 | return err; |
1814 | |
1815 | err = __netxen_nic_up(adapter, netdev); |
1816 | if (err) |
1817 | goto err_out; |
1818 | |
1819 | netif_start_queue(dev: netdev); |
1820 | |
1821 | return 0; |
1822 | |
1823 | err_out: |
1824 | netxen_nic_detach(adapter); |
1825 | return err; |
1826 | } |
1827 | |
1828 | /* |
1829 | * netxen_nic_close - Disables a network interface entry point |
1830 | */ |
1831 | static int netxen_nic_close(struct net_device *netdev) |
1832 | { |
1833 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
1834 | |
1835 | __netxen_nic_down(adapter, netdev); |
1836 | return 0; |
1837 | } |
1838 | |
1839 | static void |
1840 | netxen_tso_check(struct net_device *netdev, |
1841 | struct nx_host_tx_ring *tx_ring, |
1842 | struct cmd_desc_type0 *first_desc, |
1843 | struct sk_buff *skb) |
1844 | { |
1845 | u8 opcode = TX_ETHER_PKT; |
1846 | __be16 protocol = skb->protocol; |
1847 | u16 flags = 0, vid = 0; |
1848 | u32 producer; |
1849 | int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; |
1850 | struct cmd_desc_type0 *hwdesc; |
1851 | struct vlan_ethhdr *vh; |
1852 | |
1853 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { |
1854 | |
1855 | vh = skb_vlan_eth_hdr(skb); |
1856 | protocol = vh->h_vlan_encapsulated_proto; |
1857 | flags = FLAGS_VLAN_TAGGED; |
1858 | |
1859 | } else if (skb_vlan_tag_present(skb)) { |
1860 | flags = FLAGS_VLAN_OOB; |
1861 | vid = skb_vlan_tag_get(skb); |
1862 | netxen_set_tx_vlan_tci(first_desc, vid); |
1863 | vlan_oob = 1; |
1864 | } |
1865 | |
1866 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1867 | skb_shinfo(skb)->gso_size > 0) { |
1868 | |
1869 | hdr_len = skb_tcp_all_headers(skb); |
1870 | |
1871 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
1872 | first_desc->total_hdr_length = hdr_len; |
1873 | if (vlan_oob) { |
1874 | first_desc->total_hdr_length += VLAN_HLEN; |
1875 | first_desc->tcp_hdr_offset = VLAN_HLEN; |
1876 | first_desc->ip_hdr_offset = VLAN_HLEN; |
1877 | /* Only in case of TSO on vlan device */ |
1878 | flags |= FLAGS_VLAN_TAGGED; |
1879 | } |
1880 | |
1881 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? |
1882 | TX_TCP_LSO6 : TX_TCP_LSO; |
1883 | tso = 1; |
1884 | |
1885 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1886 | u8 l4proto; |
1887 | |
1888 | if (protocol == cpu_to_be16(ETH_P_IP)) { |
1889 | l4proto = ip_hdr(skb)->protocol; |
1890 | |
1891 | if (l4proto == IPPROTO_TCP) |
1892 | opcode = TX_TCP_PKT; |
1893 | else if(l4proto == IPPROTO_UDP) |
1894 | opcode = TX_UDP_PKT; |
1895 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { |
1896 | l4proto = ipv6_hdr(skb)->nexthdr; |
1897 | |
1898 | if (l4proto == IPPROTO_TCP) |
1899 | opcode = TX_TCPV6_PKT; |
1900 | else if(l4proto == IPPROTO_UDP) |
1901 | opcode = TX_UDPV6_PKT; |
1902 | } |
1903 | } |
1904 | |
1905 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); |
1906 | first_desc->ip_hdr_offset += skb_network_offset(skb); |
1907 | netxen_set_tx_flags_opcode(first_desc, flags, opcode); |
1908 | |
1909 | if (!tso) |
1910 | return; |
1911 | |
1912 | /* For LSO, we need to copy the MAC/IP/TCP headers into |
1913 | * the descriptor ring |
1914 | */ |
1915 | producer = tx_ring->producer; |
1916 | copied = 0; |
1917 | offset = 2; |
1918 | |
1919 | if (vlan_oob) { |
1920 | /* Create a TSO vlan header template for firmware */ |
1921 | |
1922 | hwdesc = &tx_ring->desc_head[producer]; |
1923 | tx_ring->cmd_buf_arr[producer].skb = NULL; |
1924 | |
1925 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, |
1926 | hdr_len + VLAN_HLEN); |
1927 | |
1928 | vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); |
1929 | skb_copy_from_linear_data(skb, to: vh, len: 12); |
1930 | vh->h_vlan_proto = htons(ETH_P_8021Q); |
1931 | vh->h_vlan_TCI = htons(vid); |
1932 | skb_copy_from_linear_data_offset(skb, offset: 12, |
1933 | to: (char *)vh + 16, len: copy_len - 16); |
1934 | |
1935 | copied = copy_len - VLAN_HLEN; |
1936 | offset = 0; |
1937 | |
1938 | producer = get_next_index(producer, tx_ring->num_desc); |
1939 | } |
1940 | |
1941 | while (copied < hdr_len) { |
1942 | |
1943 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, |
1944 | (hdr_len - copied)); |
1945 | |
1946 | hwdesc = &tx_ring->desc_head[producer]; |
1947 | tx_ring->cmd_buf_arr[producer].skb = NULL; |
1948 | |
1949 | skb_copy_from_linear_data_offset(skb, offset: copied, |
1950 | to: (char *)hwdesc + offset, len: copy_len); |
1951 | |
1952 | copied += copy_len; |
1953 | offset = 0; |
1954 | |
1955 | producer = get_next_index(producer, tx_ring->num_desc); |
1956 | } |
1957 | |
1958 | tx_ring->producer = producer; |
1959 | barrier(); |
1960 | } |
1961 | |
1962 | static int |
1963 | netxen_map_tx_skb(struct pci_dev *pdev, |
1964 | struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) |
1965 | { |
1966 | struct netxen_skb_frag *nf; |
1967 | skb_frag_t *frag; |
1968 | int i, nr_frags; |
1969 | dma_addr_t map; |
1970 | |
1971 | nr_frags = skb_shinfo(skb)->nr_frags; |
1972 | nf = &pbuf->frag_array[0]; |
1973 | |
1974 | map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb), |
1975 | DMA_TO_DEVICE); |
1976 | if (dma_mapping_error(dev: &pdev->dev, dma_addr: map)) |
1977 | goto out_err; |
1978 | |
1979 | nf->dma = map; |
1980 | nf->length = skb_headlen(skb); |
1981 | |
1982 | for (i = 0; i < nr_frags; i++) { |
1983 | frag = &skb_shinfo(skb)->frags[i]; |
1984 | nf = &pbuf->frag_array[i+1]; |
1985 | |
1986 | map = skb_frag_dma_map(dev: &pdev->dev, frag, offset: 0, size: skb_frag_size(frag), |
1987 | dir: DMA_TO_DEVICE); |
1988 | if (dma_mapping_error(dev: &pdev->dev, dma_addr: map)) |
1989 | goto unwind; |
1990 | |
1991 | nf->dma = map; |
1992 | nf->length = skb_frag_size(frag); |
1993 | } |
1994 | |
1995 | return 0; |
1996 | |
1997 | unwind: |
1998 | while (--i >= 0) { |
1999 | nf = &pbuf->frag_array[i+1]; |
2000 | dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE); |
2001 | nf->dma = 0ULL; |
2002 | } |
2003 | |
2004 | nf = &pbuf->frag_array[0]; |
2005 | dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE); |
2006 | nf->dma = 0ULL; |
2007 | |
2008 | out_err: |
2009 | return -ENOMEM; |
2010 | } |
2011 | |
2012 | static inline void |
2013 | netxen_clear_cmddesc(u64 *desc) |
2014 | { |
2015 | desc[0] = 0ULL; |
2016 | desc[2] = 0ULL; |
2017 | } |
2018 | |
2019 | static netdev_tx_t |
2020 | netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
2021 | { |
2022 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
2023 | struct nx_host_tx_ring *tx_ring = adapter->tx_ring; |
2024 | struct netxen_cmd_buffer *pbuf; |
2025 | struct netxen_skb_frag *buffrag; |
2026 | struct cmd_desc_type0 *hwdesc, *first_desc; |
2027 | struct pci_dev *pdev; |
2028 | int i, k; |
2029 | int delta = 0; |
2030 | skb_frag_t *frag; |
2031 | |
2032 | u32 producer; |
2033 | int frag_count; |
2034 | u32 num_txd = tx_ring->num_desc; |
2035 | |
2036 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
2037 | |
2038 | /* 14 frags supported for normal packet and |
2039 | * 32 frags supported for TSO packet |
2040 | */ |
2041 | if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { |
2042 | |
2043 | for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { |
2044 | frag = &skb_shinfo(skb)->frags[i]; |
2045 | delta += skb_frag_size(frag); |
2046 | } |
2047 | |
2048 | if (!__pskb_pull_tail(skb, delta)) |
2049 | goto drop_packet; |
2050 | |
2051 | frag_count = 1 + skb_shinfo(skb)->nr_frags; |
2052 | } |
2053 | |
2054 | if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { |
2055 | netif_stop_queue(dev: netdev); |
2056 | smp_mb(); |
2057 | if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) |
2058 | netif_start_queue(dev: netdev); |
2059 | else |
2060 | return NETDEV_TX_BUSY; |
2061 | } |
2062 | |
2063 | producer = tx_ring->producer; |
2064 | pbuf = &tx_ring->cmd_buf_arr[producer]; |
2065 | |
2066 | pdev = adapter->pdev; |
2067 | |
2068 | if (netxen_map_tx_skb(pdev, skb, pbuf)) |
2069 | goto drop_packet; |
2070 | |
2071 | pbuf->skb = skb; |
2072 | pbuf->frag_count = frag_count; |
2073 | |
2074 | first_desc = hwdesc = &tx_ring->desc_head[producer]; |
2075 | netxen_clear_cmddesc(desc: (u64 *)hwdesc); |
2076 | |
2077 | netxen_set_tx_frags_len(first_desc, frag_count, skb->len); |
2078 | netxen_set_tx_port(first_desc, adapter->portnum); |
2079 | |
2080 | for (i = 0; i < frag_count; i++) { |
2081 | |
2082 | k = i % 4; |
2083 | |
2084 | if ((k == 0) && (i > 0)) { |
2085 | /* move to next desc.*/ |
2086 | producer = get_next_index(producer, num_txd); |
2087 | hwdesc = &tx_ring->desc_head[producer]; |
2088 | netxen_clear_cmddesc(desc: (u64 *)hwdesc); |
2089 | tx_ring->cmd_buf_arr[producer].skb = NULL; |
2090 | } |
2091 | |
2092 | buffrag = &pbuf->frag_array[i]; |
2093 | |
2094 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); |
2095 | switch (k) { |
2096 | case 0: |
2097 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); |
2098 | break; |
2099 | case 1: |
2100 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); |
2101 | break; |
2102 | case 2: |
2103 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); |
2104 | break; |
2105 | case 3: |
2106 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); |
2107 | break; |
2108 | } |
2109 | } |
2110 | |
2111 | tx_ring->producer = get_next_index(producer, num_txd); |
2112 | |
2113 | netxen_tso_check(netdev, tx_ring, first_desc, skb); |
2114 | |
2115 | adapter->stats.txbytes += skb->len; |
2116 | adapter->stats.xmitcalled++; |
2117 | |
2118 | netxen_nic_update_cmd_producer(adapter, tx_ring); |
2119 | |
2120 | return NETDEV_TX_OK; |
2121 | |
2122 | drop_packet: |
2123 | adapter->stats.txdropped++; |
2124 | dev_kfree_skb_any(skb); |
2125 | return NETDEV_TX_OK; |
2126 | } |
2127 | |
2128 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
2129 | { |
2130 | struct net_device *netdev = adapter->netdev; |
2131 | uint32_t temp, temp_state, temp_val; |
2132 | int rv = 0; |
2133 | |
2134 | temp = NXRD32(adapter, CRB_TEMP_STATE); |
2135 | |
2136 | temp_state = nx_get_temp_state(temp); |
2137 | temp_val = nx_get_temp_val(temp); |
2138 | |
2139 | if (temp_state == NX_TEMP_PANIC) { |
2140 | printk(KERN_ALERT |
2141 | "%s: Device temperature %d degrees C exceeds" |
2142 | " maximum allowed. Hardware has been shut down.\n" , |
2143 | netdev->name, temp_val); |
2144 | rv = 1; |
2145 | } else if (temp_state == NX_TEMP_WARN) { |
2146 | if (adapter->temp == NX_TEMP_NORMAL) { |
2147 | printk(KERN_ALERT |
2148 | "%s: Device temperature %d degrees C " |
2149 | "exceeds operating range." |
2150 | " Immediate action needed.\n" , |
2151 | netdev->name, temp_val); |
2152 | } |
2153 | } else { |
2154 | if (adapter->temp == NX_TEMP_WARN) { |
2155 | printk(KERN_INFO |
2156 | "%s: Device temperature is now %d degrees C" |
2157 | " in normal range.\n" , netdev->name, |
2158 | temp_val); |
2159 | } |
2160 | } |
2161 | adapter->temp = temp_state; |
2162 | return rv; |
2163 | } |
2164 | |
2165 | void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) |
2166 | { |
2167 | struct net_device *netdev = adapter->netdev; |
2168 | |
2169 | if (adapter->ahw.linkup && !linkup) { |
2170 | printk(KERN_INFO "%s: %s NIC Link is down\n" , |
2171 | netxen_nic_driver_name, netdev->name); |
2172 | adapter->ahw.linkup = 0; |
2173 | if (netif_running(dev: netdev)) { |
2174 | netif_carrier_off(dev: netdev); |
2175 | netif_stop_queue(dev: netdev); |
2176 | } |
2177 | adapter->link_changed = !adapter->has_link_events; |
2178 | } else if (!adapter->ahw.linkup && linkup) { |
2179 | printk(KERN_INFO "%s: %s NIC Link is up\n" , |
2180 | netxen_nic_driver_name, netdev->name); |
2181 | adapter->ahw.linkup = 1; |
2182 | if (netif_running(dev: netdev)) { |
2183 | netif_carrier_on(dev: netdev); |
2184 | netif_wake_queue(dev: netdev); |
2185 | } |
2186 | adapter->link_changed = !adapter->has_link_events; |
2187 | } |
2188 | } |
2189 | |
2190 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) |
2191 | { |
2192 | u32 val, port, linkup; |
2193 | |
2194 | port = adapter->physical_port; |
2195 | |
2196 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
2197 | val = NXRD32(adapter, CRB_XG_STATE_P3); |
2198 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); |
2199 | linkup = (val == XG_LINK_UP_P3); |
2200 | } else { |
2201 | val = NXRD32(adapter, CRB_XG_STATE); |
2202 | val = (val >> port*8) & 0xff; |
2203 | linkup = (val == XG_LINK_UP); |
2204 | } |
2205 | |
2206 | netxen_advert_link_change(adapter, linkup); |
2207 | } |
2208 | |
2209 | static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue) |
2210 | { |
2211 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
2212 | |
2213 | if (test_bit(__NX_RESETTING, &adapter->state)) |
2214 | return; |
2215 | |
2216 | dev_err(&netdev->dev, "transmit timeout, resetting.\n" ); |
2217 | schedule_work(work: &adapter->tx_timeout_task); |
2218 | } |
2219 | |
2220 | static void netxen_tx_timeout_task(struct work_struct *work) |
2221 | { |
2222 | struct netxen_adapter *adapter = |
2223 | container_of(work, struct netxen_adapter, tx_timeout_task); |
2224 | |
2225 | if (!netif_running(dev: adapter->netdev)) |
2226 | return; |
2227 | |
2228 | if (test_and_set_bit(__NX_RESETTING, addr: &adapter->state)) |
2229 | return; |
2230 | |
2231 | if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) |
2232 | goto request_reset; |
2233 | |
2234 | rtnl_lock(); |
2235 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
2236 | /* try to scrub interrupt */ |
2237 | netxen_napi_disable(adapter); |
2238 | |
2239 | netxen_napi_enable(adapter); |
2240 | |
2241 | netif_wake_queue(dev: adapter->netdev); |
2242 | |
2243 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2244 | } else { |
2245 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2246 | if (netxen_nic_reset_context(adapter)) { |
2247 | rtnl_unlock(); |
2248 | goto request_reset; |
2249 | } |
2250 | } |
2251 | netif_trans_update(dev: adapter->netdev); |
2252 | rtnl_unlock(); |
2253 | return; |
2254 | |
2255 | request_reset: |
2256 | adapter->need_fw_reset = 1; |
2257 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2258 | } |
2259 | |
2260 | static void netxen_nic_get_stats(struct net_device *netdev, |
2261 | struct rtnl_link_stats64 *stats) |
2262 | { |
2263 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
2264 | |
2265 | stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; |
2266 | stats->tx_packets = adapter->stats.xmitfinished; |
2267 | stats->rx_bytes = adapter->stats.rxbytes; |
2268 | stats->tx_bytes = adapter->stats.txbytes; |
2269 | stats->rx_dropped = adapter->stats.rxdropped; |
2270 | stats->tx_dropped = adapter->stats.txdropped; |
2271 | } |
2272 | |
2273 | static irqreturn_t netxen_intr(int irq, void *data) |
2274 | { |
2275 | struct nx_host_sds_ring *sds_ring = data; |
2276 | struct netxen_adapter *adapter = sds_ring->adapter; |
2277 | u32 status = 0; |
2278 | |
2279 | status = readl(addr: adapter->isr_int_vec); |
2280 | |
2281 | if (!(status & adapter->int_vec_bit)) |
2282 | return IRQ_NONE; |
2283 | |
2284 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
2285 | /* check interrupt state machine, to be sure */ |
2286 | status = readl(addr: adapter->crb_int_state_reg); |
2287 | if (!ISR_LEGACY_INT_TRIGGERED(status)) |
2288 | return IRQ_NONE; |
2289 | |
2290 | } else { |
2291 | unsigned long our_int = 0; |
2292 | |
2293 | our_int = readl(addr: adapter->crb_int_state_reg); |
2294 | |
2295 | /* not our interrupt */ |
2296 | if (!test_and_clear_bit(nr: (7 + adapter->portnum), addr: &our_int)) |
2297 | return IRQ_NONE; |
2298 | |
2299 | /* claim interrupt */ |
2300 | writel(val: (our_int & 0xffffffff), addr: adapter->crb_int_state_reg); |
2301 | |
2302 | /* clear interrupt */ |
2303 | netxen_nic_disable_int(sds_ring); |
2304 | } |
2305 | |
2306 | writel(val: 0xffffffff, addr: adapter->tgt_status_reg); |
2307 | /* read twice to ensure write is flushed */ |
2308 | readl(addr: adapter->isr_int_vec); |
2309 | readl(addr: adapter->isr_int_vec); |
2310 | |
2311 | napi_schedule(n: &sds_ring->napi); |
2312 | |
2313 | return IRQ_HANDLED; |
2314 | } |
2315 | |
2316 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
2317 | { |
2318 | struct nx_host_sds_ring *sds_ring = data; |
2319 | struct netxen_adapter *adapter = sds_ring->adapter; |
2320 | |
2321 | /* clear interrupt */ |
2322 | writel(val: 0xffffffff, addr: adapter->tgt_status_reg); |
2323 | |
2324 | napi_schedule(n: &sds_ring->napi); |
2325 | return IRQ_HANDLED; |
2326 | } |
2327 | |
2328 | static irqreturn_t netxen_msix_intr(int irq, void *data) |
2329 | { |
2330 | struct nx_host_sds_ring *sds_ring = data; |
2331 | |
2332 | napi_schedule(n: &sds_ring->napi); |
2333 | return IRQ_HANDLED; |
2334 | } |
2335 | |
2336 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
2337 | { |
2338 | struct nx_host_sds_ring *sds_ring = |
2339 | container_of(napi, struct nx_host_sds_ring, napi); |
2340 | |
2341 | struct netxen_adapter *adapter = sds_ring->adapter; |
2342 | |
2343 | int tx_complete; |
2344 | int work_done; |
2345 | |
2346 | tx_complete = netxen_process_cmd_ring(adapter); |
2347 | |
2348 | work_done = netxen_process_rcv_ring(sds_ring, max: budget); |
2349 | |
2350 | if (!tx_complete) |
2351 | work_done = budget; |
2352 | |
2353 | if (work_done < budget) { |
2354 | napi_complete_done(n: &sds_ring->napi, work_done); |
2355 | if (test_bit(__NX_DEV_UP, &adapter->state)) |
2356 | netxen_nic_enable_int(sds_ring); |
2357 | } |
2358 | |
2359 | return work_done; |
2360 | } |
2361 | |
2362 | static int |
2363 | nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) |
2364 | { |
2365 | int count; |
2366 | if (netxen_api_lock(adapter)) |
2367 | return -EIO; |
2368 | |
2369 | count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
2370 | |
2371 | NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); |
2372 | |
2373 | netxen_api_unlock(adapter); |
2374 | return count; |
2375 | } |
2376 | |
2377 | static int |
2378 | nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) |
2379 | { |
2380 | int count, state; |
2381 | if (netxen_api_lock(adapter)) |
2382 | return -EIO; |
2383 | |
2384 | count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
2385 | WARN_ON(count == 0); |
2386 | |
2387 | NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); |
2388 | state = NXRD32(adapter, NX_CRB_DEV_STATE); |
2389 | |
2390 | if (count == 0 && state != NX_DEV_FAILED) |
2391 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); |
2392 | |
2393 | netxen_api_unlock(adapter); |
2394 | return count; |
2395 | } |
2396 | |
2397 | static int |
2398 | nx_dev_request_aer(struct netxen_adapter *adapter) |
2399 | { |
2400 | u32 state; |
2401 | int ret = -EINVAL; |
2402 | |
2403 | if (netxen_api_lock(adapter)) |
2404 | return ret; |
2405 | |
2406 | state = NXRD32(adapter, NX_CRB_DEV_STATE); |
2407 | |
2408 | if (state == NX_DEV_NEED_AER) |
2409 | ret = 0; |
2410 | else if (state == NX_DEV_READY) { |
2411 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); |
2412 | ret = 0; |
2413 | } |
2414 | |
2415 | netxen_api_unlock(adapter); |
2416 | return ret; |
2417 | } |
2418 | |
2419 | int |
2420 | nx_dev_request_reset(struct netxen_adapter *adapter) |
2421 | { |
2422 | u32 state; |
2423 | int ret = -EINVAL; |
2424 | |
2425 | if (netxen_api_lock(adapter)) |
2426 | return ret; |
2427 | |
2428 | state = NXRD32(adapter, NX_CRB_DEV_STATE); |
2429 | |
2430 | if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) |
2431 | ret = 0; |
2432 | else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { |
2433 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); |
2434 | adapter->flags |= NETXEN_FW_RESET_OWNER; |
2435 | ret = 0; |
2436 | } |
2437 | |
2438 | netxen_api_unlock(adapter); |
2439 | |
2440 | return ret; |
2441 | } |
2442 | |
2443 | static int |
2444 | netxen_can_start_firmware(struct netxen_adapter *adapter) |
2445 | { |
2446 | int count; |
2447 | int can_start = 0; |
2448 | |
2449 | if (netxen_api_lock(adapter)) { |
2450 | nx_incr_dev_ref_cnt(adapter); |
2451 | return -1; |
2452 | } |
2453 | |
2454 | count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
2455 | |
2456 | if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) |
2457 | count = 0; |
2458 | |
2459 | if (count == 0) { |
2460 | can_start = 1; |
2461 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); |
2462 | } |
2463 | |
2464 | NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); |
2465 | |
2466 | netxen_api_unlock(adapter); |
2467 | |
2468 | return can_start; |
2469 | } |
2470 | |
2471 | static void |
2472 | netxen_schedule_work(struct netxen_adapter *adapter, |
2473 | work_func_t func, int delay) |
2474 | { |
2475 | INIT_DELAYED_WORK(&adapter->fw_work, func); |
2476 | schedule_delayed_work(dwork: &adapter->fw_work, delay); |
2477 | } |
2478 | |
2479 | static void |
2480 | netxen_cancel_fw_work(struct netxen_adapter *adapter) |
2481 | { |
2482 | while (test_and_set_bit(__NX_RESETTING, addr: &adapter->state)) |
2483 | msleep(msecs: 10); |
2484 | |
2485 | cancel_delayed_work_sync(dwork: &adapter->fw_work); |
2486 | } |
2487 | |
2488 | static void |
2489 | netxen_attach_work(struct work_struct *work) |
2490 | { |
2491 | struct netxen_adapter *adapter = container_of(work, |
2492 | struct netxen_adapter, fw_work.work); |
2493 | struct net_device *netdev = adapter->netdev; |
2494 | int err = 0; |
2495 | |
2496 | if (netif_running(dev: netdev)) { |
2497 | err = netxen_nic_attach(adapter); |
2498 | if (err) |
2499 | goto done; |
2500 | |
2501 | err = netxen_nic_up(adapter, netdev); |
2502 | if (err) { |
2503 | netxen_nic_detach(adapter); |
2504 | goto done; |
2505 | } |
2506 | |
2507 | netxen_restore_indev_addr(dev: netdev, NETDEV_UP); |
2508 | } |
2509 | |
2510 | netif_device_attach(dev: netdev); |
2511 | |
2512 | done: |
2513 | adapter->fw_fail_cnt = 0; |
2514 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2515 | netxen_schedule_work(adapter, func: netxen_fw_poll_work, FW_POLL_DELAY); |
2516 | } |
2517 | |
2518 | static void |
2519 | netxen_fwinit_work(struct work_struct *work) |
2520 | { |
2521 | struct netxen_adapter *adapter = container_of(work, |
2522 | struct netxen_adapter, fw_work.work); |
2523 | int dev_state; |
2524 | int count; |
2525 | dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); |
2526 | if (adapter->flags & NETXEN_FW_RESET_OWNER) { |
2527 | count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
2528 | WARN_ON(count == 0); |
2529 | if (count == 1) { |
2530 | if (adapter->mdump.md_enabled) { |
2531 | rtnl_lock(); |
2532 | netxen_dump_fw(adapter); |
2533 | rtnl_unlock(); |
2534 | } |
2535 | adapter->flags &= ~NETXEN_FW_RESET_OWNER; |
2536 | if (netxen_api_lock(adapter)) { |
2537 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2538 | NXWR32(adapter, NX_CRB_DEV_STATE, |
2539 | NX_DEV_FAILED); |
2540 | return; |
2541 | } |
2542 | count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
2543 | NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); |
2544 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); |
2545 | dev_state = NX_DEV_COLD; |
2546 | netxen_api_unlock(adapter); |
2547 | } |
2548 | } |
2549 | |
2550 | switch (dev_state) { |
2551 | case NX_DEV_COLD: |
2552 | case NX_DEV_READY: |
2553 | if (!netxen_start_firmware(adapter)) { |
2554 | netxen_schedule_work(adapter, func: netxen_attach_work, delay: 0); |
2555 | return; |
2556 | } |
2557 | break; |
2558 | |
2559 | case NX_DEV_NEED_RESET: |
2560 | case NX_DEV_INITALIZING: |
2561 | netxen_schedule_work(adapter, |
2562 | func: netxen_fwinit_work, delay: 2 * FW_POLL_DELAY); |
2563 | return; |
2564 | |
2565 | case NX_DEV_FAILED: |
2566 | default: |
2567 | nx_incr_dev_ref_cnt(adapter); |
2568 | break; |
2569 | } |
2570 | |
2571 | if (netxen_api_lock(adapter)) { |
2572 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2573 | return; |
2574 | } |
2575 | NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED); |
2576 | netxen_api_unlock(adapter); |
2577 | dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n" , |
2578 | adapter->netdev->name); |
2579 | |
2580 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2581 | } |
2582 | |
2583 | static void |
2584 | netxen_detach_work(struct work_struct *work) |
2585 | { |
2586 | struct netxen_adapter *adapter = container_of(work, |
2587 | struct netxen_adapter, fw_work.work); |
2588 | struct net_device *netdev = adapter->netdev; |
2589 | int ref_cnt = 0, delay; |
2590 | u32 status; |
2591 | |
2592 | netif_device_detach(dev: netdev); |
2593 | |
2594 | netxen_nic_down(adapter, netdev); |
2595 | |
2596 | rtnl_lock(); |
2597 | netxen_nic_detach(adapter); |
2598 | rtnl_unlock(); |
2599 | |
2600 | status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); |
2601 | |
2602 | if (status & NX_RCODE_FATAL_ERROR) |
2603 | goto err_ret; |
2604 | |
2605 | if (adapter->temp == NX_TEMP_PANIC) |
2606 | goto err_ret; |
2607 | |
2608 | if (!(adapter->flags & NETXEN_FW_RESET_OWNER)) |
2609 | ref_cnt = nx_decr_dev_ref_cnt(adapter); |
2610 | |
2611 | if (ref_cnt == -EIO) |
2612 | goto err_ret; |
2613 | |
2614 | delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); |
2615 | |
2616 | adapter->fw_wait_cnt = 0; |
2617 | netxen_schedule_work(adapter, func: netxen_fwinit_work, delay); |
2618 | |
2619 | return; |
2620 | |
2621 | err_ret: |
2622 | clear_bit(__NX_RESETTING, addr: &adapter->state); |
2623 | } |
2624 | |
2625 | static int |
2626 | netxen_check_health(struct netxen_adapter *adapter) |
2627 | { |
2628 | u32 state, heartbit; |
2629 | u32 peg_status; |
2630 | struct net_device *netdev = adapter->netdev; |
2631 | |
2632 | state = NXRD32(adapter, NX_CRB_DEV_STATE); |
2633 | if (state == NX_DEV_NEED_AER) |
2634 | return 0; |
2635 | |
2636 | if (netxen_nic_check_temp(adapter)) |
2637 | goto detach; |
2638 | |
2639 | if (adapter->need_fw_reset) { |
2640 | if (nx_dev_request_reset(adapter)) |
2641 | return 0; |
2642 | goto detach; |
2643 | } |
2644 | |
2645 | /* NX_DEV_NEED_RESET, this state can be marked in two cases |
2646 | * 1. Tx timeout 2. Fw hang |
2647 | * Send request to destroy context in case of tx timeout only |
2648 | * and doesn't required in case of Fw hang |
2649 | */ |
2650 | if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) { |
2651 | adapter->need_fw_reset = 1; |
2652 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
2653 | goto detach; |
2654 | } |
2655 | |
2656 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
2657 | return 0; |
2658 | |
2659 | heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); |
2660 | if (heartbit != adapter->heartbit) { |
2661 | adapter->heartbit = heartbit; |
2662 | adapter->fw_fail_cnt = 0; |
2663 | if (adapter->need_fw_reset) |
2664 | goto detach; |
2665 | return 0; |
2666 | } |
2667 | |
2668 | if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) |
2669 | return 0; |
2670 | |
2671 | if (nx_dev_request_reset(adapter)) |
2672 | return 0; |
2673 | |
2674 | clear_bit(__NX_FW_ATTACHED, addr: &adapter->state); |
2675 | |
2676 | dev_err(&netdev->dev, "firmware hang detected\n" ); |
2677 | peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); |
2678 | dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n" |
2679 | "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n" |
2680 | "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n" |
2681 | "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n" |
2682 | "PEG_NET_4_PC: 0x%x\n" , |
2683 | peg_status, |
2684 | NXRD32(adapter, NETXEN_PEG_HALT_STATUS2), |
2685 | NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c), |
2686 | NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c), |
2687 | NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c), |
2688 | NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c), |
2689 | NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c)); |
2690 | if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67) |
2691 | dev_err(&adapter->pdev->dev, |
2692 | "Firmware aborted with error code 0x00006700. " |
2693 | "Device is being reset.\n" ); |
2694 | detach: |
2695 | if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && |
2696 | !test_and_set_bit(__NX_RESETTING, addr: &adapter->state)) |
2697 | netxen_schedule_work(adapter, func: netxen_detach_work, delay: 0); |
2698 | return 1; |
2699 | } |
2700 | |
2701 | static void |
2702 | netxen_fw_poll_work(struct work_struct *work) |
2703 | { |
2704 | struct netxen_adapter *adapter = container_of(work, |
2705 | struct netxen_adapter, fw_work.work); |
2706 | |
2707 | if (test_bit(__NX_RESETTING, &adapter->state)) |
2708 | goto reschedule; |
2709 | |
2710 | if (test_bit(__NX_DEV_UP, &adapter->state) && |
2711 | !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) { |
2712 | if (!adapter->has_link_events) { |
2713 | |
2714 | netxen_nic_handle_phy_intr(adapter); |
2715 | |
2716 | if (adapter->link_changed) |
2717 | netxen_nic_set_link_parameters(adapter); |
2718 | } |
2719 | } |
2720 | |
2721 | if (netxen_check_health(adapter)) |
2722 | return; |
2723 | |
2724 | reschedule: |
2725 | netxen_schedule_work(adapter, func: netxen_fw_poll_work, FW_POLL_DELAY); |
2726 | } |
2727 | |
2728 | static ssize_t |
2729 | netxen_store_bridged_mode(struct device *dev, |
2730 | struct device_attribute *attr, const char *buf, size_t len) |
2731 | { |
2732 | struct net_device *net = to_net_dev(dev); |
2733 | struct netxen_adapter *adapter = netdev_priv(dev: net); |
2734 | unsigned long new; |
2735 | int ret = -EINVAL; |
2736 | |
2737 | if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) |
2738 | goto err_out; |
2739 | |
2740 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
2741 | goto err_out; |
2742 | |
2743 | if (kstrtoul(s: buf, base: 2, res: &new)) |
2744 | goto err_out; |
2745 | |
2746 | if (!netxen_config_bridged_mode(adapter, enable: !!new)) |
2747 | ret = len; |
2748 | |
2749 | err_out: |
2750 | return ret; |
2751 | } |
2752 | |
2753 | static ssize_t |
2754 | netxen_show_bridged_mode(struct device *dev, |
2755 | struct device_attribute *attr, char *buf) |
2756 | { |
2757 | struct net_device *net = to_net_dev(dev); |
2758 | struct netxen_adapter *adapter; |
2759 | int bridged_mode = 0; |
2760 | |
2761 | adapter = netdev_priv(dev: net); |
2762 | |
2763 | if (adapter->capabilities & NX_FW_CAPABILITY_BDG) |
2764 | bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); |
2765 | |
2766 | return sprintf(buf, fmt: "%d\n" , bridged_mode); |
2767 | } |
2768 | |
2769 | static const struct device_attribute dev_attr_bridged_mode = { |
2770 | .attr = { .name = "bridged_mode" , .mode = 0644 }, |
2771 | .show = netxen_show_bridged_mode, |
2772 | .store = netxen_store_bridged_mode, |
2773 | }; |
2774 | |
2775 | static ssize_t |
2776 | netxen_store_diag_mode(struct device *dev, |
2777 | struct device_attribute *attr, const char *buf, size_t len) |
2778 | { |
2779 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2780 | unsigned long new; |
2781 | |
2782 | if (kstrtoul(s: buf, base: 2, res: &new)) |
2783 | return -EINVAL; |
2784 | |
2785 | if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
2786 | adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; |
2787 | |
2788 | return len; |
2789 | } |
2790 | |
2791 | static ssize_t |
2792 | netxen_show_diag_mode(struct device *dev, |
2793 | struct device_attribute *attr, char *buf) |
2794 | { |
2795 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2796 | |
2797 | return sprintf(buf, fmt: "%d\n" , |
2798 | !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); |
2799 | } |
2800 | |
2801 | static const struct device_attribute dev_attr_diag_mode = { |
2802 | .attr = { .name = "diag_mode" , .mode = 0644 }, |
2803 | .show = netxen_show_diag_mode, |
2804 | .store = netxen_store_diag_mode, |
2805 | }; |
2806 | |
2807 | static int |
2808 | netxen_sysfs_validate_crb(struct netxen_adapter *adapter, |
2809 | loff_t offset, size_t size) |
2810 | { |
2811 | size_t crb_size = 4; |
2812 | |
2813 | if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
2814 | return -EIO; |
2815 | |
2816 | if (offset < NETXEN_PCI_CRBSPACE) { |
2817 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
2818 | return -EINVAL; |
2819 | |
2820 | if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, |
2821 | NETXEN_PCI_CAMQM_2M_END)) |
2822 | crb_size = 8; |
2823 | else |
2824 | return -EINVAL; |
2825 | } |
2826 | |
2827 | if ((size != crb_size) || (offset & (crb_size-1))) |
2828 | return -EINVAL; |
2829 | |
2830 | return 0; |
2831 | } |
2832 | |
2833 | static ssize_t |
2834 | netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, |
2835 | struct bin_attribute *attr, |
2836 | char *buf, loff_t offset, size_t size) |
2837 | { |
2838 | struct device *dev = kobj_to_dev(kobj); |
2839 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2840 | u32 data; |
2841 | u64 qmdata; |
2842 | int ret; |
2843 | |
2844 | ret = netxen_sysfs_validate_crb(adapter, offset, size); |
2845 | if (ret != 0) |
2846 | return ret; |
2847 | |
2848 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && |
2849 | ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, |
2850 | NETXEN_PCI_CAMQM_2M_END)) { |
2851 | netxen_pci_camqm_read_2M(adapter, offset, &qmdata); |
2852 | memcpy(buf, &qmdata, size); |
2853 | } else { |
2854 | data = NXRD32(adapter, offset); |
2855 | memcpy(buf, &data, size); |
2856 | } |
2857 | |
2858 | return size; |
2859 | } |
2860 | |
2861 | static ssize_t |
2862 | netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, |
2863 | struct bin_attribute *attr, |
2864 | char *buf, loff_t offset, size_t size) |
2865 | { |
2866 | struct device *dev = kobj_to_dev(kobj); |
2867 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2868 | u32 data; |
2869 | u64 qmdata; |
2870 | int ret; |
2871 | |
2872 | ret = netxen_sysfs_validate_crb(adapter, offset, size); |
2873 | if (ret != 0) |
2874 | return ret; |
2875 | |
2876 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && |
2877 | ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, |
2878 | NETXEN_PCI_CAMQM_2M_END)) { |
2879 | memcpy(&qmdata, buf, size); |
2880 | netxen_pci_camqm_write_2M(adapter, offset, qmdata); |
2881 | } else { |
2882 | memcpy(&data, buf, size); |
2883 | NXWR32(adapter, offset, data); |
2884 | } |
2885 | |
2886 | return size; |
2887 | } |
2888 | |
2889 | static int |
2890 | netxen_sysfs_validate_mem(struct netxen_adapter *adapter, |
2891 | loff_t offset, size_t size) |
2892 | { |
2893 | if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
2894 | return -EIO; |
2895 | |
2896 | if ((size != 8) || (offset & 0x7)) |
2897 | return -EIO; |
2898 | |
2899 | return 0; |
2900 | } |
2901 | |
2902 | static ssize_t |
2903 | netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, |
2904 | struct bin_attribute *attr, |
2905 | char *buf, loff_t offset, size_t size) |
2906 | { |
2907 | struct device *dev = kobj_to_dev(kobj); |
2908 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2909 | u64 data; |
2910 | int ret; |
2911 | |
2912 | ret = netxen_sysfs_validate_mem(adapter, offset, size); |
2913 | if (ret != 0) |
2914 | return ret; |
2915 | |
2916 | if (adapter->pci_mem_read(adapter, offset, &data)) |
2917 | return -EIO; |
2918 | |
2919 | memcpy(buf, &data, size); |
2920 | |
2921 | return size; |
2922 | } |
2923 | |
2924 | static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, |
2925 | struct bin_attribute *attr, char *buf, |
2926 | loff_t offset, size_t size) |
2927 | { |
2928 | struct device *dev = kobj_to_dev(kobj); |
2929 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2930 | u64 data; |
2931 | int ret; |
2932 | |
2933 | ret = netxen_sysfs_validate_mem(adapter, offset, size); |
2934 | if (ret != 0) |
2935 | return ret; |
2936 | |
2937 | memcpy(&data, buf, size); |
2938 | |
2939 | if (adapter->pci_mem_write(adapter, offset, data)) |
2940 | return -EIO; |
2941 | |
2942 | return size; |
2943 | } |
2944 | |
2945 | |
2946 | static const struct bin_attribute bin_attr_crb = { |
2947 | .attr = { .name = "crb" , .mode = 0644 }, |
2948 | .size = 0, |
2949 | .read = netxen_sysfs_read_crb, |
2950 | .write = netxen_sysfs_write_crb, |
2951 | }; |
2952 | |
2953 | static const struct bin_attribute bin_attr_mem = { |
2954 | .attr = { .name = "mem" , .mode = 0644 }, |
2955 | .size = 0, |
2956 | .read = netxen_sysfs_read_mem, |
2957 | .write = netxen_sysfs_write_mem, |
2958 | }; |
2959 | |
2960 | static ssize_t |
2961 | netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj, |
2962 | struct bin_attribute *attr, |
2963 | char *buf, loff_t offset, size_t size) |
2964 | { |
2965 | struct device *dev = kobj_to_dev(kobj); |
2966 | struct netxen_adapter *adapter = dev_get_drvdata(dev); |
2967 | struct net_device *netdev = adapter->netdev; |
2968 | struct netxen_dimm_cfg dimm; |
2969 | u8 dw, rows, cols, banks, ranks; |
2970 | u32 val; |
2971 | |
2972 | if (size < attr->size) { |
2973 | netdev_err(dev: netdev, format: "Invalid size\n" ); |
2974 | return -EINVAL; |
2975 | } |
2976 | |
2977 | memset(&dimm, 0, sizeof(struct netxen_dimm_cfg)); |
2978 | val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY); |
2979 | |
2980 | /* Checks if DIMM info is valid. */ |
2981 | if (val & NETXEN_DIMM_VALID_FLAG) { |
2982 | netdev_err(dev: netdev, format: "Invalid DIMM flag\n" ); |
2983 | dimm.presence = 0xff; |
2984 | goto out; |
2985 | } |
2986 | |
2987 | rows = NETXEN_DIMM_NUMROWS(val); |
2988 | cols = NETXEN_DIMM_NUMCOLS(val); |
2989 | ranks = NETXEN_DIMM_NUMRANKS(val); |
2990 | banks = NETXEN_DIMM_NUMBANKS(val); |
2991 | dw = NETXEN_DIMM_DATAWIDTH(val); |
2992 | |
2993 | dimm.presence = (val & NETXEN_DIMM_PRESENT); |
2994 | |
2995 | /* Checks if DIMM info is present. */ |
2996 | if (!dimm.presence) { |
2997 | netdev_err(dev: netdev, format: "DIMM not present\n" ); |
2998 | goto out; |
2999 | } |
3000 | |
3001 | dimm.dimm_type = NETXEN_DIMM_TYPE(val); |
3002 | |
3003 | switch (dimm.dimm_type) { |
3004 | case NETXEN_DIMM_TYPE_RDIMM: |
3005 | case NETXEN_DIMM_TYPE_UDIMM: |
3006 | case NETXEN_DIMM_TYPE_SO_DIMM: |
3007 | case NETXEN_DIMM_TYPE_Micro_DIMM: |
3008 | case NETXEN_DIMM_TYPE_Mini_RDIMM: |
3009 | case NETXEN_DIMM_TYPE_Mini_UDIMM: |
3010 | break; |
3011 | default: |
3012 | netdev_err(dev: netdev, format: "Invalid DIMM type %x\n" , dimm.dimm_type); |
3013 | goto out; |
3014 | } |
3015 | |
3016 | if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM) |
3017 | dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM; |
3018 | else |
3019 | dimm.mem_type = NETXEN_DIMM_MEMTYPE(val); |
3020 | |
3021 | if (val & NETXEN_DIMM_SIZE) { |
3022 | dimm.size = NETXEN_DIMM_STD_MEM_SIZE; |
3023 | goto out; |
3024 | } |
3025 | |
3026 | if (!rows) { |
3027 | netdev_err(dev: netdev, format: "Invalid no of rows %x\n" , rows); |
3028 | goto out; |
3029 | } |
3030 | |
3031 | if (!cols) { |
3032 | netdev_err(dev: netdev, format: "Invalid no of columns %x\n" , cols); |
3033 | goto out; |
3034 | } |
3035 | |
3036 | if (!banks) { |
3037 | netdev_err(dev: netdev, format: "Invalid no of banks %x\n" , banks); |
3038 | goto out; |
3039 | } |
3040 | |
3041 | ranks += 1; |
3042 | |
3043 | switch (dw) { |
3044 | case 0x0: |
3045 | dw = 32; |
3046 | break; |
3047 | case 0x1: |
3048 | dw = 33; |
3049 | break; |
3050 | case 0x2: |
3051 | dw = 36; |
3052 | break; |
3053 | case 0x3: |
3054 | dw = 64; |
3055 | break; |
3056 | case 0x4: |
3057 | dw = 72; |
3058 | break; |
3059 | case 0x5: |
3060 | dw = 80; |
3061 | break; |
3062 | case 0x6: |
3063 | dw = 128; |
3064 | break; |
3065 | case 0x7: |
3066 | dw = 144; |
3067 | break; |
3068 | default: |
3069 | netdev_err(dev: netdev, format: "Invalid data-width %x\n" , dw); |
3070 | goto out; |
3071 | } |
3072 | |
3073 | dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8; |
3074 | /* Size returned in MB. */ |
3075 | dimm.size = (dimm.size) / 0x100000; |
3076 | out: |
3077 | memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg)); |
3078 | return sizeof(struct netxen_dimm_cfg); |
3079 | |
3080 | } |
3081 | |
3082 | static const struct bin_attribute bin_attr_dimm = { |
3083 | .attr = { .name = "dimm" , .mode = 0644 }, |
3084 | .size = sizeof(struct netxen_dimm_cfg), |
3085 | .read = netxen_sysfs_read_dimm, |
3086 | }; |
3087 | |
3088 | |
3089 | static void |
3090 | netxen_create_sysfs_entries(struct netxen_adapter *adapter) |
3091 | { |
3092 | struct device *dev = &adapter->pdev->dev; |
3093 | |
3094 | if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { |
3095 | /* bridged_mode control */ |
3096 | if (device_create_file(device: dev, entry: &dev_attr_bridged_mode)) { |
3097 | dev_warn(dev, |
3098 | "failed to create bridged_mode sysfs entry\n" ); |
3099 | } |
3100 | } |
3101 | } |
3102 | |
3103 | static void |
3104 | netxen_remove_sysfs_entries(struct netxen_adapter *adapter) |
3105 | { |
3106 | struct device *dev = &adapter->pdev->dev; |
3107 | |
3108 | if (adapter->capabilities & NX_FW_CAPABILITY_BDG) |
3109 | device_remove_file(dev, attr: &dev_attr_bridged_mode); |
3110 | } |
3111 | |
3112 | static void |
3113 | netxen_create_diag_entries(struct netxen_adapter *adapter) |
3114 | { |
3115 | struct pci_dev *pdev = adapter->pdev; |
3116 | struct device *dev; |
3117 | |
3118 | dev = &pdev->dev; |
3119 | if (device_create_file(device: dev, entry: &dev_attr_diag_mode)) |
3120 | dev_info(dev, "failed to create diag_mode sysfs entry\n" ); |
3121 | if (device_create_bin_file(dev, attr: &bin_attr_crb)) |
3122 | dev_info(dev, "failed to create crb sysfs entry\n" ); |
3123 | if (device_create_bin_file(dev, attr: &bin_attr_mem)) |
3124 | dev_info(dev, "failed to create mem sysfs entry\n" ); |
3125 | if (device_create_bin_file(dev, attr: &bin_attr_dimm)) |
3126 | dev_info(dev, "failed to create dimm sysfs entry\n" ); |
3127 | } |
3128 | |
3129 | |
3130 | static void |
3131 | netxen_remove_diag_entries(struct netxen_adapter *adapter) |
3132 | { |
3133 | struct pci_dev *pdev = adapter->pdev; |
3134 | struct device *dev = &pdev->dev; |
3135 | |
3136 | device_remove_file(dev, attr: &dev_attr_diag_mode); |
3137 | device_remove_bin_file(dev, attr: &bin_attr_crb); |
3138 | device_remove_bin_file(dev, attr: &bin_attr_mem); |
3139 | device_remove_bin_file(dev, attr: &bin_attr_dimm); |
3140 | } |
3141 | |
3142 | #ifdef CONFIG_INET |
3143 | |
3144 | #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) |
3145 | |
3146 | static int |
3147 | netxen_destip_supported(struct netxen_adapter *adapter) |
3148 | { |
3149 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
3150 | return 0; |
3151 | |
3152 | if (adapter->ahw.cut_through) |
3153 | return 0; |
3154 | |
3155 | return 1; |
3156 | } |
3157 | |
3158 | static void |
3159 | netxen_free_ip_list(struct netxen_adapter *adapter, bool master) |
3160 | { |
3161 | struct nx_ip_list *cur, *tmp_cur; |
3162 | |
3163 | list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) { |
3164 | if (master) { |
3165 | if (cur->master) { |
3166 | netxen_config_ipaddr(adapter, ip: cur->ip_addr, |
3167 | NX_IP_DOWN); |
3168 | list_del(entry: &cur->list); |
3169 | kfree(objp: cur); |
3170 | } |
3171 | } else { |
3172 | netxen_config_ipaddr(adapter, ip: cur->ip_addr, NX_IP_DOWN); |
3173 | list_del(entry: &cur->list); |
3174 | kfree(objp: cur); |
3175 | } |
3176 | } |
3177 | } |
3178 | |
3179 | static bool |
3180 | netxen_list_config_ip(struct netxen_adapter *adapter, |
3181 | struct in_ifaddr *ifa, unsigned long event) |
3182 | { |
3183 | struct net_device *dev; |
3184 | struct nx_ip_list *cur, *tmp_cur; |
3185 | struct list_head *head; |
3186 | bool ret = false; |
3187 | |
3188 | dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; |
3189 | |
3190 | if (dev == NULL) |
3191 | goto out; |
3192 | |
3193 | switch (event) { |
3194 | case NX_IP_UP: |
3195 | list_for_each(head, &adapter->ip_list) { |
3196 | cur = list_entry(head, struct nx_ip_list, list); |
3197 | |
3198 | if (cur->ip_addr == ifa->ifa_address) |
3199 | goto out; |
3200 | } |
3201 | |
3202 | cur = kzalloc(size: sizeof(struct nx_ip_list), GFP_ATOMIC); |
3203 | if (cur == NULL) |
3204 | goto out; |
3205 | if (is_vlan_dev(dev)) |
3206 | dev = vlan_dev_real_dev(dev); |
3207 | cur->master = !!netif_is_bond_master(dev); |
3208 | cur->ip_addr = ifa->ifa_address; |
3209 | list_add_tail(new: &cur->list, head: &adapter->ip_list); |
3210 | netxen_config_ipaddr(adapter, ip: ifa->ifa_address, NX_IP_UP); |
3211 | ret = true; |
3212 | break; |
3213 | case NX_IP_DOWN: |
3214 | list_for_each_entry_safe(cur, tmp_cur, |
3215 | &adapter->ip_list, list) { |
3216 | if (cur->ip_addr == ifa->ifa_address) { |
3217 | list_del(entry: &cur->list); |
3218 | kfree(objp: cur); |
3219 | netxen_config_ipaddr(adapter, ip: ifa->ifa_address, |
3220 | NX_IP_DOWN); |
3221 | ret = true; |
3222 | break; |
3223 | } |
3224 | } |
3225 | } |
3226 | out: |
3227 | return ret; |
3228 | } |
3229 | |
3230 | static void |
3231 | netxen_config_indev_addr(struct netxen_adapter *adapter, |
3232 | struct net_device *dev, unsigned long event) |
3233 | { |
3234 | struct in_device *indev; |
3235 | struct in_ifaddr *ifa; |
3236 | |
3237 | if (!netxen_destip_supported(adapter)) |
3238 | return; |
3239 | |
3240 | indev = in_dev_get(dev); |
3241 | if (!indev) |
3242 | return; |
3243 | |
3244 | rcu_read_lock(); |
3245 | in_dev_for_each_ifa_rcu(ifa, indev) { |
3246 | switch (event) { |
3247 | case NETDEV_UP: |
3248 | netxen_list_config_ip(adapter, ifa, NX_IP_UP); |
3249 | break; |
3250 | case NETDEV_DOWN: |
3251 | netxen_list_config_ip(adapter, ifa, NX_IP_DOWN); |
3252 | break; |
3253 | default: |
3254 | break; |
3255 | } |
3256 | } |
3257 | rcu_read_unlock(); |
3258 | in_dev_put(idev: indev); |
3259 | } |
3260 | |
3261 | static void |
3262 | netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) |
3263 | |
3264 | { |
3265 | struct netxen_adapter *adapter = netdev_priv(dev: netdev); |
3266 | struct nx_ip_list *pos, *tmp_pos; |
3267 | unsigned long ip_event; |
3268 | |
3269 | ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; |
3270 | netxen_config_indev_addr(adapter, dev: netdev, event); |
3271 | |
3272 | list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) { |
3273 | netxen_config_ipaddr(adapter, ip: pos->ip_addr, cmd: ip_event); |
3274 | } |
3275 | } |
3276 | |
3277 | static inline bool |
3278 | netxen_config_checkdev(struct net_device *dev) |
3279 | { |
3280 | struct netxen_adapter *adapter; |
3281 | |
3282 | if (!is_netxen_netdev(dev)) |
3283 | return false; |
3284 | adapter = netdev_priv(dev); |
3285 | if (!adapter) |
3286 | return false; |
3287 | if (!netxen_destip_supported(adapter)) |
3288 | return false; |
3289 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
3290 | return false; |
3291 | |
3292 | return true; |
3293 | } |
3294 | |
3295 | /** |
3296 | * netxen_config_master - configure addresses based on master |
3297 | * @dev: netxen device |
3298 | * @event: netdev event |
3299 | */ |
3300 | static void netxen_config_master(struct net_device *dev, unsigned long event) |
3301 | { |
3302 | struct net_device *master, *slave; |
3303 | struct netxen_adapter *adapter = netdev_priv(dev); |
3304 | |
3305 | rcu_read_lock(); |
3306 | master = netdev_master_upper_dev_get_rcu(dev); |
3307 | /* |
3308 | * This is the case where the netxen nic is being |
3309 | * enslaved and is dev_open()ed in bond_enslave() |
3310 | * Now we should program the bond's (and its vlans') |
3311 | * addresses in the netxen NIC. |
3312 | */ |
3313 | if (master && netif_is_bond_master(dev: master) && |
3314 | !netif_is_bond_slave(dev)) { |
3315 | netxen_config_indev_addr(adapter, dev: master, event); |
3316 | for_each_netdev_rcu(&init_net, slave) |
3317 | if (is_vlan_dev(dev: slave) && |
3318 | vlan_dev_real_dev(dev: slave) == master) |
3319 | netxen_config_indev_addr(adapter, dev: slave, event); |
3320 | } |
3321 | rcu_read_unlock(); |
3322 | /* |
3323 | * This is the case where the netxen nic is being |
3324 | * released and is dev_close()ed in bond_release() |
3325 | * just before IFF_BONDING is stripped. |
3326 | */ |
3327 | if (!master && dev->priv_flags & IFF_BONDING) |
3328 | netxen_free_ip_list(adapter, master: true); |
3329 | } |
3330 | |
3331 | static int netxen_netdev_event(struct notifier_block *this, |
3332 | unsigned long event, void *ptr) |
3333 | { |
3334 | struct netxen_adapter *adapter; |
3335 | struct net_device *dev = netdev_notifier_info_to_dev(info: ptr); |
3336 | struct net_device *orig_dev = dev; |
3337 | struct net_device *slave; |
3338 | |
3339 | recheck: |
3340 | if (dev == NULL) |
3341 | goto done; |
3342 | |
3343 | if (is_vlan_dev(dev)) { |
3344 | dev = vlan_dev_real_dev(dev); |
3345 | goto recheck; |
3346 | } |
3347 | if (event == NETDEV_UP || event == NETDEV_DOWN) { |
3348 | /* If this is a bonding device, look for netxen-based slaves*/ |
3349 | if (netif_is_bond_master(dev)) { |
3350 | rcu_read_lock(); |
3351 | for_each_netdev_in_bond_rcu(dev, slave) { |
3352 | if (!netxen_config_checkdev(dev: slave)) |
3353 | continue; |
3354 | adapter = netdev_priv(dev: slave); |
3355 | netxen_config_indev_addr(adapter, |
3356 | dev: orig_dev, event); |
3357 | } |
3358 | rcu_read_unlock(); |
3359 | } else { |
3360 | if (!netxen_config_checkdev(dev)) |
3361 | goto done; |
3362 | adapter = netdev_priv(dev); |
3363 | /* Act only if the actual netxen is the target */ |
3364 | if (orig_dev == dev) |
3365 | netxen_config_master(dev, event); |
3366 | netxen_config_indev_addr(adapter, dev: orig_dev, event); |
3367 | } |
3368 | } |
3369 | done: |
3370 | return NOTIFY_DONE; |
3371 | } |
3372 | |
3373 | static int |
3374 | netxen_inetaddr_event(struct notifier_block *this, |
3375 | unsigned long event, void *ptr) |
3376 | { |
3377 | struct netxen_adapter *adapter; |
3378 | struct net_device *dev, *slave; |
3379 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; |
3380 | unsigned long ip_event; |
3381 | |
3382 | dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; |
3383 | ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; |
3384 | recheck: |
3385 | if (dev == NULL) |
3386 | goto done; |
3387 | |
3388 | if (is_vlan_dev(dev)) { |
3389 | dev = vlan_dev_real_dev(dev); |
3390 | goto recheck; |
3391 | } |
3392 | if (event == NETDEV_UP || event == NETDEV_DOWN) { |
3393 | /* If this is a bonding device, look for netxen-based slaves*/ |
3394 | if (netif_is_bond_master(dev)) { |
3395 | rcu_read_lock(); |
3396 | for_each_netdev_in_bond_rcu(dev, slave) { |
3397 | if (!netxen_config_checkdev(dev: slave)) |
3398 | continue; |
3399 | adapter = netdev_priv(dev: slave); |
3400 | netxen_list_config_ip(adapter, ifa, event: ip_event); |
3401 | } |
3402 | rcu_read_unlock(); |
3403 | } else { |
3404 | if (!netxen_config_checkdev(dev)) |
3405 | goto done; |
3406 | adapter = netdev_priv(dev); |
3407 | netxen_list_config_ip(adapter, ifa, event: ip_event); |
3408 | } |
3409 | } |
3410 | done: |
3411 | return NOTIFY_DONE; |
3412 | } |
3413 | |
3414 | static struct notifier_block netxen_netdev_cb = { |
3415 | .notifier_call = netxen_netdev_event, |
3416 | }; |
3417 | |
3418 | static struct notifier_block netxen_inetaddr_cb = { |
3419 | .notifier_call = netxen_inetaddr_event, |
3420 | }; |
3421 | #else |
3422 | static void |
3423 | netxen_restore_indev_addr(struct net_device *dev, unsigned long event) |
3424 | { } |
3425 | static void |
3426 | netxen_free_ip_list(struct netxen_adapter *adapter, bool master) |
3427 | { } |
3428 | #endif |
3429 | |
3430 | static const struct pci_error_handlers netxen_err_handler = { |
3431 | .error_detected = netxen_io_error_detected, |
3432 | .slot_reset = netxen_io_slot_reset, |
3433 | }; |
3434 | |
3435 | static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops, |
3436 | netxen_nic_suspend, |
3437 | netxen_nic_resume); |
3438 | |
3439 | static struct pci_driver netxen_driver = { |
3440 | .name = netxen_nic_driver_name, |
3441 | .id_table = netxen_pci_tbl, |
3442 | .probe = netxen_nic_probe, |
3443 | .remove = netxen_nic_remove, |
3444 | .driver.pm = &netxen_nic_pm_ops, |
3445 | .shutdown = netxen_nic_shutdown, |
3446 | .err_handler = &netxen_err_handler |
3447 | }; |
3448 | |
3449 | static int __init netxen_init_module(void) |
3450 | { |
3451 | printk(KERN_INFO "%s\n" , netxen_nic_driver_string); |
3452 | |
3453 | #ifdef CONFIG_INET |
3454 | register_netdevice_notifier(nb: &netxen_netdev_cb); |
3455 | register_inetaddr_notifier(nb: &netxen_inetaddr_cb); |
3456 | #endif |
3457 | return pci_register_driver(&netxen_driver); |
3458 | } |
3459 | |
3460 | module_init(netxen_init_module); |
3461 | |
3462 | static void __exit netxen_exit_module(void) |
3463 | { |
3464 | pci_unregister_driver(dev: &netxen_driver); |
3465 | |
3466 | #ifdef CONFIG_INET |
3467 | unregister_inetaddr_notifier(nb: &netxen_inetaddr_cb); |
3468 | unregister_netdevice_notifier(nb: &netxen_netdev_cb); |
3469 | #endif |
3470 | } |
3471 | |
3472 | module_exit(netxen_exit_module); |
3473 | |