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Commit | Line | Data |
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3d396eb1 | 1 | /* |
5d242f1c | 2 | * Copyright (C) 2003 - 2009 NetXen, Inc. |
3d396eb1 | 3 | * All rights reserved. |
80922fbc | 4 | * |
3d396eb1 AK |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
80922fbc | 9 | * |
3d396eb1 AK |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
80922fbc | 14 | * |
3d396eb1 AK |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
80922fbc | 19 | * |
3d396eb1 AK |
20 | * The full GNU General Public License is included in this distribution |
21 | * in the file called LICENSE. | |
80922fbc | 22 | * |
3d396eb1 AK |
23 | * Contact Information: |
24 | * info@netxen.com | |
5d242f1c DP |
25 | * NetXen Inc, |
26 | * 18922 Forge Drive | |
27 | * Cupertino, CA 95014-0701 | |
3d396eb1 AK |
28 | * |
29 | */ | |
30 | ||
cb8011ad | 31 | #include <linux/vmalloc.h> |
ed25ffa1 | 32 | #include <linux/highmem.h> |
3d396eb1 AK |
33 | #include "netxen_nic_hw.h" |
34 | ||
35 | #include "netxen_nic.h" | |
3d396eb1 | 36 | #include "netxen_nic_phan_reg.h" |
3d396eb1 | 37 | |
1494a814 | 38 | #include <linux/dma-mapping.h> |
391587c3 | 39 | #include <linux/if_vlan.h> |
c9bdd4b5 | 40 | #include <net/ip.h> |
00977784 | 41 | #include <linux/ipv6.h> |
1494a814 | 42 | |
3d396eb1 AK |
43 | MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); |
44 | MODULE_LICENSE("GPL"); | |
45 | MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); | |
46 | ||
ceded32f | 47 | char netxen_nic_driver_name[] = "netxen_nic"; |
3d396eb1 | 48 | static char netxen_nic_driver_string[] = "NetXen Network Driver version " |
cb8011ad | 49 | NETXEN_NIC_LINUX_VERSIONID; |
3d396eb1 | 50 | |
2956640d DP |
51 | static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
52 | ||
53 | /* Default to restricted 1G auto-neg mode */ | |
54 | static int wol_port_mode = 5; | |
55 | ||
56 | static int use_msi = 1; | |
57 | ||
58 | static int use_msi_x = 1; | |
59 | ||
3d396eb1 AK |
60 | /* Local functions to NetXen NIC driver */ |
61 | static int __devinit netxen_nic_probe(struct pci_dev *pdev, | |
2956640d | 62 | const struct pci_device_id *ent); |
3d396eb1 AK |
63 | static void __devexit netxen_nic_remove(struct pci_dev *pdev); |
64 | static int netxen_nic_open(struct net_device *netdev); | |
65 | static int netxen_nic_close(struct net_device *netdev); | |
66 | static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); | |
67 | static void netxen_tx_timeout(struct net_device *netdev); | |
6d5aefb8 | 68 | static void netxen_tx_timeout_task(struct work_struct *work); |
3d396eb1 | 69 | static void netxen_watchdog(unsigned long); |
bea3348e | 70 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
3d396eb1 AK |
71 | #ifdef CONFIG_NET_POLL_CONTROLLER |
72 | static void netxen_nic_poll_controller(struct net_device *netdev); | |
73 | #endif | |
1494a814 | 74 | static irqreturn_t netxen_intr(int irq, void *data); |
05aaa02d | 75 | static irqreturn_t netxen_msi_intr(int irq, void *data); |
b3df68f8 | 76 | static irqreturn_t netxen_msix_intr(int irq, void *data); |
3d396eb1 AK |
77 | |
78 | /* PCI Device ID Table */ | |
70081ac5 | 79 | #define ENTRY(device) \ |
040dec3b | 80 | {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ |
70081ac5 AV |
81 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} |
82 | ||
3d396eb1 | 83 | static struct pci_device_id netxen_pci_tbl[] __devinitdata = { |
040dec3b DP |
84 | ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), |
85 | ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), | |
86 | ENTRY(PCI_DEVICE_ID_NX2031_4GCU), | |
87 | ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), | |
88 | ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), | |
89 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), | |
90 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), | |
91 | ENTRY(PCI_DEVICE_ID_NX3031), | |
3d396eb1 AK |
92 | {0,} |
93 | }; | |
94 | ||
95 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); | |
96 | ||
b1555130 AB |
97 | static struct workqueue_struct *netxen_workq; |
98 | #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) | |
99 | #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) | |
100 | ||
ed25ffa1 AK |
101 | static void netxen_watchdog(unsigned long); |
102 | ||
7830b22c DP |
103 | static uint32_t crb_cmd_producer[4] = { |
104 | CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, | |
105 | CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 | |
106 | }; | |
107 | ||
c9fc891f | 108 | void |
3ce06a32 DP |
109 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
110 | uint32_t crb_producer) | |
3176ff3e | 111 | { |
3ce06a32 DP |
112 | adapter->pci_write_normalize(adapter, |
113 | adapter->crb_addr_cmd_producer, crb_producer); | |
3176ff3e MT |
114 | } |
115 | ||
7830b22c DP |
116 | static uint32_t crb_cmd_consumer[4] = { |
117 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, | |
118 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 | |
119 | }; | |
120 | ||
3ce06a32 DP |
121 | static inline void |
122 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
123 | u32 crb_consumer) | |
3176ff3e | 124 | { |
3ce06a32 DP |
125 | adapter->pci_write_normalize(adapter, |
126 | adapter->crb_addr_cmd_consumer, crb_consumer); | |
3176ff3e MT |
127 | } |
128 | ||
2956640d | 129 | static uint32_t msi_tgt_status[8] = { |
443be796 | 130 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
2956640d DP |
131 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
132 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
133 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
443be796 DP |
134 | }; |
135 | ||
2956640d DP |
136 | static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
137 | ||
d8b100c5 | 138 | static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) |
4638aef1 | 139 | { |
d8b100c5 DP |
140 | struct netxen_adapter *adapter = sds_ring->adapter; |
141 | ||
142 | adapter->pci_write_normalize(adapter, sds_ring->crb_intr_mask, 0); | |
4638aef1 SH |
143 | } |
144 | ||
d8b100c5 | 145 | static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) |
4638aef1 | 146 | { |
d8b100c5 DP |
147 | struct netxen_adapter *adapter = sds_ring->adapter; |
148 | ||
149 | adapter->pci_write_normalize(adapter, sds_ring->crb_intr_mask, 0x1); | |
4638aef1 | 150 | |
092bc571 DP |
151 | if (!NETXEN_IS_MSI_FAMILY(adapter)) |
152 | adapter->pci_write_immediate(adapter, | |
153 | adapter->legacy_intr.tgt_mask_reg, 0xfbff); | |
4638aef1 SH |
154 | } |
155 | ||
d8b100c5 DP |
156 | static void |
157 | netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) | |
158 | { | |
159 | int ring; | |
160 | struct nx_host_sds_ring *sds_ring; | |
161 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
162 | ||
163 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
164 | adapter->max_sds_rings = (num_online_cpus() >= 4) ? 4 : 2; | |
165 | else | |
166 | adapter->max_sds_rings = 1; | |
167 | ||
168 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
169 | sds_ring = &recv_ctx->sds_rings[ring]; | |
170 | netif_napi_add(netdev, &sds_ring->napi, | |
171 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
172 | } | |
173 | } | |
174 | ||
175 | static void | |
176 | netxen_napi_enable(struct netxen_adapter *adapter) | |
177 | { | |
178 | int ring; | |
179 | struct nx_host_sds_ring *sds_ring; | |
180 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
181 | ||
182 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
183 | sds_ring = &recv_ctx->sds_rings[ring]; | |
184 | napi_enable(&sds_ring->napi); | |
185 | netxen_nic_enable_int(sds_ring); | |
186 | } | |
187 | } | |
188 | ||
189 | static void | |
190 | netxen_napi_disable(struct netxen_adapter *adapter) | |
191 | { | |
192 | int ring; | |
193 | struct nx_host_sds_ring *sds_ring; | |
194 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
195 | ||
196 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
197 | sds_ring = &recv_ctx->sds_rings[ring]; | |
198 | netxen_nic_disable_int(sds_ring); | |
199 | napi_disable(&sds_ring->napi); | |
200 | } | |
201 | } | |
202 | ||
2956640d DP |
203 | static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) |
204 | { | |
205 | struct pci_dev *pdev = adapter->pdev; | |
1f434f63 DP |
206 | uint64_t mask, cmask; |
207 | ||
208 | adapter->pci_using_dac = 0; | |
2956640d | 209 | |
1f434f63 | 210 | mask = DMA_32BIT_MASK; |
2956640d DP |
211 | /* |
212 | * Consistent DMA mask is set to 32 bit because it cannot be set to | |
213 | * 35 bits. For P3 also leave it at 32 bits for now. Only the rings | |
214 | * come off this pool. | |
215 | */ | |
1f434f63 DP |
216 | cmask = DMA_32BIT_MASK; |
217 | ||
218 | #ifndef CONFIG_IA64 | |
219 | if (revision_id >= NX_P3_B0) | |
220 | mask = DMA_39BIT_MASK; | |
221 | else if (revision_id == NX_P2_C1) | |
222 | mask = DMA_35BIT_MASK; | |
223 | #endif | |
2956640d | 224 | if (pci_set_dma_mask(pdev, mask) == 0 && |
1f434f63 | 225 | pci_set_consistent_dma_mask(pdev, cmask) == 0) { |
2956640d DP |
226 | adapter->pci_using_dac = 1; |
227 | return 0; | |
228 | } | |
2956640d | 229 | |
1f434f63 DP |
230 | return -EIO; |
231 | } | |
232 | ||
233 | /* Update addressable range if firmware supports it */ | |
234 | static int | |
235 | nx_update_dma_mask(struct netxen_adapter *adapter) | |
236 | { | |
237 | int change, shift, err; | |
238 | uint64_t mask, old_mask; | |
239 | struct pci_dev *pdev = adapter->pdev; | |
240 | ||
241 | change = 0; | |
242 | ||
243 | shift = netxen_nic_reg_read(adapter, CRB_DMA_SHIFT); | |
244 | if (shift >= 32) | |
245 | return 0; | |
246 | ||
247 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) | |
248 | change = 1; | |
249 | else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) | |
250 | change = 1; | |
251 | ||
252 | if (change) { | |
253 | old_mask = pdev->dma_mask; | |
254 | mask = (1ULL<<(32+shift)) - 1; | |
255 | ||
256 | err = pci_set_dma_mask(pdev, mask); | |
257 | if (err) | |
258 | return pci_set_dma_mask(pdev, old_mask); | |
2956640d DP |
259 | } |
260 | ||
2956640d DP |
261 | return 0; |
262 | } | |
263 | ||
264 | static void netxen_check_options(struct netxen_adapter *adapter) | |
265 | { | |
438627c7 DP |
266 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
267 | adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G; | |
268 | else if (adapter->ahw.port_type == NETXEN_NIC_GBE) | |
269 | adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G; | |
2956640d | 270 | |
438627c7 | 271 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
c7860a2a | 272 | adapter->msix_supported = !!use_msi_x; |
438627c7 | 273 | else |
2956640d | 274 | adapter->msix_supported = 0; |
2956640d | 275 | |
438627c7 DP |
276 | adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST; |
277 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS; | |
278 | adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; | |
2956640d | 279 | |
2956640d DP |
280 | return; |
281 | } | |
282 | ||
283 | static int | |
284 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
285 | { | |
27c915a4 | 286 | u32 val, timeout; |
2956640d DP |
287 | |
288 | if (first_boot == 0x55555555) { | |
289 | /* This is the first boot after power up */ | |
27c915a4 DP |
290 | adapter->pci_write_normalize(adapter, |
291 | NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
292 | ||
293 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
294 | return 0; | |
2956640d DP |
295 | |
296 | /* PCI bus master workaround */ | |
297 | adapter->hw_read_wx(adapter, | |
298 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
299 | if (!(first_boot & 0x4)) { | |
300 | first_boot |= 0x4; | |
301 | adapter->hw_write_wx(adapter, | |
302 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
303 | adapter->hw_read_wx(adapter, | |
304 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
305 | } | |
306 | ||
307 | /* This is the first boot after power up */ | |
308 | adapter->hw_read_wx(adapter, | |
309 | NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); | |
310 | if (first_boot != 0x80000f) { | |
311 | /* clear the register for future unloads/loads */ | |
312 | adapter->pci_write_normalize(adapter, | |
313 | NETXEN_CAM_RAM(0x1fc), 0); | |
27c915a4 | 314 | return -EIO; |
2956640d DP |
315 | } |
316 | ||
27c915a4 DP |
317 | /* Start P2 boot loader */ |
318 | val = adapter->pci_read_normalize(adapter, | |
319 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE); | |
320 | adapter->pci_write_normalize(adapter, | |
321 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); | |
322 | timeout = 0; | |
323 | do { | |
324 | msleep(1); | |
325 | val = adapter->pci_read_normalize(adapter, | |
326 | NETXEN_CAM_RAM(0x1fc)); | |
327 | ||
328 | if (++timeout > 5000) | |
329 | return -EIO; | |
330 | ||
331 | } while (val == NETXEN_BDINFO_MAGIC); | |
2956640d | 332 | } |
27c915a4 | 333 | return 0; |
2956640d DP |
334 | } |
335 | ||
336 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
337 | { | |
338 | u32 val, data; | |
339 | ||
1e2d0059 | 340 | val = adapter->ahw.board_type; |
2956640d DP |
341 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || |
342 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
343 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
344 | data = NETXEN_PORT_MODE_802_3_AP; | |
345 | adapter->hw_write_wx(adapter, | |
346 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
347 | } else if (port_mode == NETXEN_PORT_MODE_XG) { | |
348 | data = NETXEN_PORT_MODE_XG; | |
349 | adapter->hw_write_wx(adapter, | |
350 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
351 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { | |
352 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
353 | adapter->hw_write_wx(adapter, | |
354 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
355 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { | |
356 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
357 | adapter->hw_write_wx(adapter, | |
358 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
359 | } else { | |
360 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
361 | adapter->hw_write_wx(adapter, | |
362 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
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 | adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, | |
372 | &wol_port_mode, 4); | |
373 | } | |
374 | } | |
375 | ||
2956640d DP |
376 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) |
377 | { | |
378 | u32 control; | |
379 | int pos; | |
380 | ||
381 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
382 | if (pos) { | |
383 | pci_read_config_dword(pdev, pos, &control); | |
384 | if (enable) | |
385 | control |= PCI_MSIX_FLAGS_ENABLE; | |
386 | else | |
387 | control = 0; | |
388 | pci_write_config_dword(pdev, pos, control); | |
389 | } | |
390 | } | |
391 | ||
392 | static void netxen_init_msix_entries(struct netxen_adapter *adapter) | |
393 | { | |
394 | int i; | |
395 | ||
396 | for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) | |
397 | adapter->msix_entries[i].entry = i; | |
398 | } | |
399 | ||
9dc28efe DP |
400 | static int |
401 | netxen_read_mac_addr(struct netxen_adapter *adapter) | |
402 | { | |
403 | int i; | |
404 | unsigned char *p; | |
405 | __le64 mac_addr; | |
9dc28efe DP |
406 | struct net_device *netdev = adapter->netdev; |
407 | struct pci_dev *pdev = adapter->pdev; | |
408 | ||
9dc28efe DP |
409 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
410 | if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) | |
411 | return -EIO; | |
412 | } else { | |
413 | if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) | |
414 | return -EIO; | |
415 | } | |
416 | ||
417 | p = (unsigned char *)&mac_addr; | |
418 | for (i = 0; i < 6; i++) | |
419 | netdev->dev_addr[i] = *(p + 5 - i); | |
420 | ||
421 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
422 | ||
423 | /* set station address */ | |
424 | ||
e174961c JB |
425 | if (!is_valid_ether_addr(netdev->perm_addr)) |
426 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); | |
427 | else | |
9dc28efe DP |
428 | adapter->macaddr_set(adapter, netdev->dev_addr); |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
1abd266f SH |
433 | static void netxen_set_multicast_list(struct net_device *dev) |
434 | { | |
435 | struct netxen_adapter *adapter = netdev_priv(dev); | |
436 | ||
437 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
438 | netxen_p3_nic_set_multi(dev); | |
439 | else | |
440 | netxen_p2_nic_set_multi(dev); | |
441 | } | |
442 | ||
443 | static const struct net_device_ops netxen_netdev_ops = { | |
444 | .ndo_open = netxen_nic_open, | |
445 | .ndo_stop = netxen_nic_close, | |
446 | .ndo_start_xmit = netxen_nic_xmit_frame, | |
447 | .ndo_get_stats = netxen_nic_get_stats, | |
448 | .ndo_validate_addr = eth_validate_addr, | |
449 | .ndo_set_multicast_list = netxen_set_multicast_list, | |
450 | .ndo_set_mac_address = netxen_nic_set_mac, | |
451 | .ndo_change_mtu = netxen_nic_change_mtu, | |
452 | .ndo_tx_timeout = netxen_tx_timeout, | |
453 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
454 | .ndo_poll_controller = netxen_nic_poll_controller, | |
455 | #endif | |
456 | }; | |
457 | ||
97daee83 DP |
458 | static void |
459 | netxen_setup_intr(struct netxen_adapter *adapter) | |
460 | { | |
461 | struct netxen_legacy_intr_set *legacy_intrp; | |
462 | struct pci_dev *pdev = adapter->pdev; | |
463 | ||
464 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); | |
465 | adapter->intr_scheme = -1; | |
466 | adapter->msi_mode = -1; | |
467 | ||
468 | if (adapter->ahw.revision_id >= NX_P3_B0) | |
469 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; | |
470 | else | |
471 | legacy_intrp = &legacy_intr[0]; | |
472 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
473 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
474 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
475 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
476 | ||
477 | netxen_set_msix_bit(pdev, 0); | |
478 | ||
479 | if (adapter->msix_supported) { | |
480 | ||
481 | netxen_init_msix_entries(adapter); | |
482 | if (pci_enable_msix(pdev, adapter->msix_entries, | |
483 | MSIX_ENTRIES_PER_ADAPTER)) | |
484 | goto request_msi; | |
485 | ||
486 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
487 | netxen_set_msix_bit(pdev, 1); | |
488 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
489 | ||
490 | } else { | |
491 | request_msi: | |
492 | if (use_msi && !pci_enable_msi(pdev)) { | |
493 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
494 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
495 | } else | |
496 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
d8b100c5 | 497 | adapter->msix_entries[0].vector = pdev->irq; |
97daee83 DP |
498 | } |
499 | } | |
500 | ||
501 | static void | |
502 | netxen_teardown_intr(struct netxen_adapter *adapter) | |
503 | { | |
504 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
505 | pci_disable_msix(adapter->pdev); | |
506 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
507 | pci_disable_msi(adapter->pdev); | |
508 | } | |
509 | ||
510 | static void | |
511 | netxen_cleanup_pci_map(struct netxen_adapter *adapter) | |
512 | { | |
513 | if (adapter->ahw.db_base != NULL) | |
514 | iounmap(adapter->ahw.db_base); | |
515 | if (adapter->ahw.pci_base0 != NULL) | |
516 | iounmap(adapter->ahw.pci_base0); | |
517 | if (adapter->ahw.pci_base1 != NULL) | |
518 | iounmap(adapter->ahw.pci_base1); | |
519 | if (adapter->ahw.pci_base2 != NULL) | |
520 | iounmap(adapter->ahw.pci_base2); | |
521 | } | |
522 | ||
523 | static int | |
524 | netxen_setup_pci_map(struct netxen_adapter *adapter) | |
525 | { | |
526 | void __iomem *mem_ptr0 = NULL; | |
527 | void __iomem *mem_ptr1 = NULL; | |
528 | void __iomem *mem_ptr2 = NULL; | |
529 | void __iomem *db_ptr = NULL; | |
530 | ||
97daee83 DP |
531 | unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0; |
532 | ||
533 | struct pci_dev *pdev = adapter->pdev; | |
534 | int pci_func = adapter->ahw.pci_func; | |
535 | ||
536 | int err = 0; | |
537 | ||
538 | /* | |
539 | * Set the CRB window to invalid. If any register in window 0 is | |
540 | * accessed it should set the window to 0 and then reset it to 1. | |
541 | */ | |
542 | adapter->curr_window = 255; | |
543 | adapter->ahw.qdr_sn_window = -1; | |
544 | adapter->ahw.ddr_mn_window = -1; | |
545 | ||
546 | /* remap phys address */ | |
547 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
548 | mem_len = pci_resource_len(pdev, 0); | |
549 | pci_len0 = 0; | |
550 | ||
551 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
552 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
553 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
554 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
555 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
556 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
557 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
558 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
559 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
560 | ||
561 | /* 128 Meg of memory */ | |
562 | if (mem_len == NETXEN_PCI_128MB_SIZE) { | |
563 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
564 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
565 | SECOND_PAGE_GROUP_SIZE); | |
566 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
567 | THIRD_PAGE_GROUP_SIZE); | |
97daee83 DP |
568 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { |
569 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
570 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
571 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
97daee83 DP |
572 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
573 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
574 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
575 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
576 | adapter->pci_write_immediate = | |
577 | netxen_nic_pci_write_immediate_2M; | |
578 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
579 | adapter->pci_write_normalize = | |
580 | netxen_nic_pci_write_normalize_2M; | |
581 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
582 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
583 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
584 | ||
585 | mem_ptr0 = pci_ioremap_bar(pdev, 0); | |
586 | if (mem_ptr0 == NULL) { | |
587 | dev_err(&pdev->dev, "failed to map PCI bar 0\n"); | |
588 | return -EIO; | |
589 | } | |
590 | pci_len0 = mem_len; | |
97daee83 DP |
591 | |
592 | adapter->ahw.ddr_mn_window = 0; | |
593 | adapter->ahw.qdr_sn_window = 0; | |
594 | ||
595 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
596 | (pci_func * 0x20); | |
597 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
598 | if (pci_func < 4) | |
599 | adapter->ahw.ms_win_crb += (pci_func * 0x20); | |
600 | else | |
601 | adapter->ahw.ms_win_crb += | |
602 | 0xA0 + ((pci_func - 4) * 0x10); | |
603 | } else { | |
604 | return -EIO; | |
605 | } | |
606 | ||
607 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); | |
608 | ||
609 | adapter->ahw.pci_base0 = mem_ptr0; | |
610 | adapter->ahw.pci_len0 = pci_len0; | |
97daee83 DP |
611 | adapter->ahw.pci_base1 = mem_ptr1; |
612 | adapter->ahw.pci_base2 = mem_ptr2; | |
613 | ||
614 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
615 | goto skip_doorbell; | |
616 | ||
617 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ | |
618 | db_len = pci_resource_len(pdev, 4); | |
619 | ||
620 | if (db_len == 0) { | |
621 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
622 | netxen_nic_driver_name); | |
623 | err = -EIO; | |
624 | goto err_out; | |
625 | } | |
626 | ||
627 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
628 | if (!db_ptr) { | |
629 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", | |
630 | netxen_nic_driver_name); | |
631 | err = -EIO; | |
632 | goto err_out; | |
633 | } | |
634 | ||
635 | skip_doorbell: | |
636 | adapter->ahw.db_base = db_ptr; | |
637 | adapter->ahw.db_len = db_len; | |
638 | return 0; | |
639 | ||
640 | err_out: | |
641 | netxen_cleanup_pci_map(adapter); | |
642 | return err; | |
643 | } | |
644 | ||
ba599d4f DP |
645 | static int |
646 | netxen_start_firmware(struct netxen_adapter *adapter) | |
647 | { | |
648 | int val, err, first_boot; | |
649 | struct pci_dev *pdev = adapter->pdev; | |
650 | ||
0b72e659 DP |
651 | int first_driver = 0; |
652 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
653 | if (adapter->ahw.pci_func == 0) | |
654 | first_driver = 1; | |
655 | } else { | |
656 | if (adapter->portnum == 0) | |
657 | first_driver = 1; | |
658 | } | |
659 | ||
660 | if (!first_driver) | |
661 | return 0; | |
662 | ||
ba599d4f DP |
663 | first_boot = adapter->pci_read_normalize(adapter, |
664 | NETXEN_CAM_RAM(0x1fc)); | |
665 | ||
666 | err = netxen_check_hw_init(adapter, first_boot); | |
667 | if (err) { | |
668 | dev_err(&pdev->dev, "error in init HW init sequence\n"); | |
669 | return err; | |
670 | } | |
671 | ||
ba599d4f DP |
672 | if (first_boot != 0x55555555) { |
673 | adapter->pci_write_normalize(adapter, | |
674 | CRB_CMDPEG_STATE, 0); | |
675 | netxen_pinit_from_rom(adapter, 0); | |
676 | msleep(1); | |
677 | } | |
567c6c4e | 678 | |
1f434f63 | 679 | netxen_nic_reg_write(adapter, CRB_DMA_SHIFT, 0x55555555); |
567c6c4e DP |
680 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
681 | netxen_set_port_mode(adapter); | |
682 | ||
ba599d4f DP |
683 | netxen_load_firmware(adapter); |
684 | ||
685 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
686 | ||
687 | /* Initialize multicast addr pool owners */ | |
688 | val = 0x7654; | |
1e2d0059 | 689 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
ba599d4f DP |
690 | val |= 0x0f000000; |
691 | netxen_crb_writelit_adapter(adapter, | |
692 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
693 | ||
694 | } | |
695 | ||
696 | err = netxen_initialize_adapter_offload(adapter); | |
697 | if (err) | |
698 | return err; | |
699 | ||
700 | /* | |
701 | * Tell the hardware our version number. | |
702 | */ | |
703 | val = (_NETXEN_NIC_LINUX_MAJOR << 16) | |
704 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) | |
705 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
706 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, val); | |
707 | ||
708 | /* Handshake with the card before we register the devices. */ | |
709 | err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
710 | if (err) { | |
711 | netxen_free_adapter_offload(adapter); | |
712 | return err; | |
713 | } | |
714 | ||
715 | return 0; | |
716 | } | |
717 | ||
9f5bc7f1 DP |
718 | static int |
719 | netxen_nic_request_irq(struct netxen_adapter *adapter) | |
720 | { | |
721 | irq_handler_t handler; | |
d8b100c5 DP |
722 | struct nx_host_sds_ring *sds_ring; |
723 | int err, ring; | |
724 | ||
9f5bc7f1 DP |
725 | unsigned long flags = IRQF_SAMPLE_RANDOM; |
726 | struct net_device *netdev = adapter->netdev; | |
d8b100c5 | 727 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
9f5bc7f1 DP |
728 | |
729 | if ((adapter->msi_mode != MSI_MODE_MULTIFUNC) || | |
730 | (adapter->intr_scheme != INTR_SCHEME_PERPORT)) { | |
731 | printk(KERN_ERR "%s: Firmware interrupt scheme is " | |
732 | "incompatible with driver\n", | |
733 | netdev->name); | |
734 | adapter->driver_mismatch = 1; | |
735 | return -EINVAL; | |
736 | } | |
737 | ||
738 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
739 | handler = netxen_msix_intr; | |
740 | else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
741 | handler = netxen_msi_intr; | |
742 | else { | |
743 | flags |= IRQF_SHARED; | |
744 | handler = netxen_intr; | |
745 | } | |
746 | adapter->irq = netdev->irq; | |
747 | ||
d8b100c5 DP |
748 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
749 | sds_ring = &recv_ctx->sds_rings[ring]; | |
750 | sprintf(sds_ring->name, "%16s[%d]", netdev->name, ring); | |
751 | err = request_irq(sds_ring->irq, handler, | |
752 | flags, sds_ring->name, sds_ring); | |
753 | if (err) | |
754 | return err; | |
755 | } | |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
760 | static void | |
761 | netxen_nic_free_irq(struct netxen_adapter *adapter) | |
762 | { | |
763 | int ring; | |
764 | struct nx_host_sds_ring *sds_ring; | |
765 | ||
766 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
767 | ||
768 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
769 | sds_ring = &recv_ctx->sds_rings[ring]; | |
770 | free_irq(sds_ring->irq, sds_ring); | |
771 | } | |
9f5bc7f1 DP |
772 | } |
773 | ||
774 | static int | |
775 | netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) | |
776 | { | |
777 | int err; | |
778 | ||
779 | err = adapter->init_port(adapter, adapter->physical_port); | |
780 | if (err) { | |
781 | printk(KERN_ERR "%s: Failed to initialize port %d\n", | |
782 | netxen_nic_driver_name, adapter->portnum); | |
783 | return err; | |
784 | } | |
785 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
786 | ||
787 | netxen_nic_set_link_parameters(adapter); | |
788 | ||
789 | netxen_set_multicast_list(netdev); | |
790 | if (adapter->set_mtu) | |
791 | adapter->set_mtu(adapter, netdev->mtu); | |
792 | ||
793 | adapter->ahw.linkup = 0; | |
794 | mod_timer(&adapter->watchdog_timer, jiffies); | |
795 | ||
d8b100c5 DP |
796 | netxen_napi_enable(adapter); |
797 | ||
798 | if (adapter->max_sds_rings > 1) | |
799 | netxen_config_rss(adapter, 1); | |
9f5bc7f1 DP |
800 | |
801 | return 0; | |
802 | } | |
803 | ||
804 | static void | |
805 | netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) | |
806 | { | |
807 | netif_carrier_off(netdev); | |
808 | netif_stop_queue(netdev); | |
d8b100c5 | 809 | netxen_napi_disable(adapter); |
9f5bc7f1 DP |
810 | |
811 | if (adapter->stop_port) | |
812 | adapter->stop_port(adapter); | |
813 | ||
9f5bc7f1 DP |
814 | netxen_release_tx_buffers(adapter); |
815 | ||
816 | FLUSH_SCHEDULED_WORK(); | |
817 | del_timer_sync(&adapter->watchdog_timer); | |
818 | } | |
819 | ||
820 | ||
821 | static int | |
822 | netxen_nic_attach(struct netxen_adapter *adapter) | |
823 | { | |
824 | struct net_device *netdev = adapter->netdev; | |
825 | struct pci_dev *pdev = adapter->pdev; | |
becf46a0 | 826 | int err, ring; |
d8b100c5 | 827 | struct nx_host_rds_ring *rds_ring; |
9f5bc7f1 DP |
828 | |
829 | err = netxen_init_firmware(adapter); | |
830 | if (err != 0) { | |
831 | printk(KERN_ERR "Failed to init firmware\n"); | |
832 | return -EIO; | |
833 | } | |
834 | ||
835 | if (adapter->fw_major < 4) | |
836 | adapter->max_rds_rings = 3; | |
837 | else | |
838 | adapter->max_rds_rings = 2; | |
839 | ||
840 | err = netxen_alloc_sw_resources(adapter); | |
841 | if (err) { | |
842 | printk(KERN_ERR "%s: Error in setting sw resources\n", | |
843 | netdev->name); | |
844 | return err; | |
845 | } | |
846 | ||
847 | netxen_nic_clear_stats(adapter); | |
848 | ||
849 | err = netxen_alloc_hw_resources(adapter); | |
850 | if (err) { | |
851 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
852 | netdev->name); | |
853 | goto err_out_free_sw; | |
854 | } | |
855 | ||
856 | if (adapter->fw_major < 4) { | |
857 | adapter->crb_addr_cmd_producer = | |
858 | crb_cmd_producer[adapter->portnum]; | |
859 | adapter->crb_addr_cmd_consumer = | |
860 | crb_cmd_consumer[adapter->portnum]; | |
861 | ||
862 | netxen_nic_update_cmd_producer(adapter, 0); | |
863 | netxen_nic_update_cmd_consumer(adapter, 0); | |
864 | } | |
865 | ||
d8b100c5 DP |
866 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
867 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; | |
868 | netxen_post_rx_buffers(adapter, ring, rds_ring); | |
869 | } | |
9f5bc7f1 DP |
870 | |
871 | err = netxen_nic_request_irq(adapter); | |
872 | if (err) { | |
873 | dev_err(&pdev->dev, "%s: failed to setup interrupt\n", | |
874 | netdev->name); | |
875 | goto err_out_free_rxbuf; | |
876 | } | |
877 | ||
878 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
879 | return 0; | |
880 | ||
881 | err_out_free_rxbuf: | |
882 | netxen_release_rx_buffers(adapter); | |
883 | netxen_free_hw_resources(adapter); | |
884 | err_out_free_sw: | |
885 | netxen_free_sw_resources(adapter); | |
886 | return err; | |
887 | } | |
888 | ||
889 | static void | |
890 | netxen_nic_detach(struct netxen_adapter *adapter) | |
891 | { | |
d8b100c5 | 892 | netxen_nic_free_irq(adapter); |
9f5bc7f1 DP |
893 | |
894 | netxen_release_rx_buffers(adapter); | |
895 | netxen_free_hw_resources(adapter); | |
896 | netxen_free_sw_resources(adapter); | |
897 | ||
898 | adapter->is_up = 0; | |
899 | } | |
900 | ||
3d396eb1 AK |
901 | static int __devinit |
902 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
903 | { | |
904 | struct net_device *netdev = NULL; | |
905 | struct netxen_adapter *adapter = NULL; | |
2956640d | 906 | int i = 0, err; |
3176ff3e | 907 | int pci_func_id = PCI_FUNC(pdev->devfn); |
2956640d | 908 | uint8_t revision_id; |
3d396eb1 | 909 | |
3176ff3e | 910 | if (pdev->class != 0x020000) { |
dcd56fdb | 911 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 912 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
913 | return -ENODEV; |
914 | } | |
2956640d | 915 | |
11d89d63 DP |
916 | if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) { |
917 | printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x" | |
918 | "will not be enabled.\n", | |
919 | NX_P3_A0, NX_P3_B1); | |
920 | return -ENODEV; | |
921 | } | |
922 | ||
3d396eb1 AK |
923 | if ((err = pci_enable_device(pdev))) |
924 | return err; | |
2956640d | 925 | |
3d396eb1 AK |
926 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
927 | err = -ENODEV; | |
928 | goto err_out_disable_pdev; | |
929 | } | |
930 | ||
931 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
932 | goto err_out_disable_pdev; | |
933 | ||
934 | pci_set_master(pdev); | |
3176ff3e MT |
935 | |
936 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
937 | if(!netdev) { | |
938 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
939 | "device block.Check system memory resource" | |
940 | " usage.\n", netxen_nic_driver_name); | |
941 | goto err_out_free_res; | |
942 | } | |
943 | ||
3176ff3e MT |
944 | SET_NETDEV_DEV(netdev, &pdev->dev); |
945 | ||
4cf1653a | 946 | adapter = netdev_priv(netdev); |
2956640d DP |
947 | adapter->netdev = netdev; |
948 | adapter->pdev = pdev; | |
13ba9c77 | 949 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
950 | |
951 | revision_id = pdev->revision; | |
952 | adapter->ahw.revision_id = revision_id; | |
953 | ||
954 | err = nx_set_dma_mask(adapter, revision_id); | |
955 | if (err) | |
956 | goto err_out_free_netdev; | |
957 | ||
3ce06a32 | 958 | rwlock_init(&adapter->adapter_lock); |
d8b100c5 | 959 | spin_lock_init(&adapter->tx_clean_lock); |
3ce06a32 | 960 | |
97daee83 DP |
961 | err = netxen_setup_pci_map(adapter); |
962 | if (err) | |
6c80b18d | 963 | goto err_out_free_netdev; |
3d396eb1 | 964 | |
2d1a3bbd | 965 | /* This will be reset for mezz cards */ |
3176ff3e | 966 | adapter->portnum = pci_func_id; |
200eef20 | 967 | adapter->rx_csum = 1; |
623621b0 | 968 | adapter->mc_enabled = 0; |
83821a07 | 969 | if (NX_IS_REVISION_P3(revision_id)) |
2956640d | 970 | adapter->max_mc_count = 38; |
83821a07 | 971 | else |
2956640d | 972 | adapter->max_mc_count = 16; |
3176ff3e | 973 | |
1abd266f | 974 | netdev->netdev_ops = &netxen_netdev_ops; |
05aaa02d | 975 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
976 | |
977 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
978 | ||
979 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
1abd266f | 980 | |
cdff1036 DP |
981 | netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); |
982 | netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); | |
983 | ||
cd1f8160 | 984 | if (NX_IS_REVISION_P3(revision_id)) { |
cdff1036 DP |
985 | netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); |
986 | netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
cd1f8160 | 987 | } |
3176ff3e | 988 | |
cdff1036 | 989 | if (adapter->pci_using_dac) { |
3176ff3e | 990 | netdev->features |= NETIF_F_HIGHDMA; |
cdff1036 DP |
991 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
992 | } | |
3176ff3e | 993 | |
dcd56fdb DP |
994 | if (netxen_nic_get_board_info(adapter) != 0) { |
995 | printk("%s: Error getting board config info.\n", | |
2956640d | 996 | netxen_nic_driver_name); |
dcd56fdb DP |
997 | err = -EIO; |
998 | goto err_out_iounmap; | |
999 | } | |
6c80b18d | 1000 | |
6c80b18d MT |
1001 | netxen_initialize_adapter_ops(adapter); |
1002 | ||
13ba9c77 | 1003 | /* Mezz cards have PCI function 0,2,3 enabled */ |
1e2d0059 | 1004 | switch (adapter->ahw.board_type) { |
dc515f2e DP |
1005 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: |
1006 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
1007 | if (pci_func_id >= 2) | |
13ba9c77 | 1008 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
1009 | break; |
1010 | default: | |
1011 | break; | |
1012 | } | |
13ba9c77 | 1013 | |
0b72e659 DP |
1014 | err = netxen_start_firmware(adapter); |
1015 | if (err) | |
1016 | goto err_out_iounmap; | |
2956640d | 1017 | |
1f434f63 DP |
1018 | nx_update_dma_mask(adapter); |
1019 | ||
1e2d0059 | 1020 | netxen_nic_get_firmware_info(adapter); |
d9e651bc | 1021 | |
3d396eb1 | 1022 | /* |
6c80b18d | 1023 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 1024 | */ |
dcd56fdb | 1025 | adapter->physical_port = adapter->portnum; |
044fad0d DP |
1026 | if (adapter->fw_major < 4) { |
1027 | i = adapter->pci_read_normalize(adapter, | |
1028 | CRB_V2P(adapter->portnum)); | |
1029 | if (i != 0x55555555) | |
1030 | adapter->physical_port = i; | |
1031 | } | |
6c80b18d | 1032 | |
438627c7 | 1033 | netxen_check_options(adapter); |
2956640d | 1034 | |
97daee83 | 1035 | netxen_setup_intr(adapter); |
2956640d | 1036 | |
d8b100c5 DP |
1037 | netdev->irq = adapter->msix_entries[0].vector; |
1038 | ||
1039 | netxen_napi_add(adapter, netdev); | |
2956640d DP |
1040 | |
1041 | err = netxen_receive_peg_ready(adapter); | |
1042 | if (err) | |
1043 | goto err_out_disable_msi; | |
1044 | ||
1045 | init_timer(&adapter->watchdog_timer); | |
2956640d DP |
1046 | adapter->watchdog_timer.function = &netxen_watchdog; |
1047 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
1048 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
1049 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
1050 | ||
9dc28efe DP |
1051 | err = netxen_read_mac_addr(adapter); |
1052 | if (err) | |
1053 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
2956640d | 1054 | |
3176ff3e MT |
1055 | netif_carrier_off(netdev); |
1056 | netif_stop_queue(netdev); | |
1057 | ||
6c80b18d MT |
1058 | if ((err = register_netdev(netdev))) { |
1059 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
1060 | " aborting\n", netxen_nic_driver_name, | |
1061 | adapter->portnum); | |
1062 | err = -EIO; | |
2956640d | 1063 | goto err_out_disable_msi; |
6c80b18d MT |
1064 | } |
1065 | ||
1066 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 1067 | |
1e2d0059 | 1068 | switch (adapter->ahw.port_type) { |
2956640d DP |
1069 | case NETXEN_NIC_GBE: |
1070 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
1071 | adapter->netdev->name); | |
1072 | break; | |
1073 | case NETXEN_NIC_XGBE: | |
1074 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
1075 | adapter->netdev->name); | |
1076 | break; | |
3d396eb1 | 1077 | } |
3d396eb1 | 1078 | |
2956640d DP |
1079 | return 0; |
1080 | ||
1081 | err_out_disable_msi: | |
97daee83 | 1082 | netxen_teardown_intr(adapter); |
6c80b18d | 1083 | |
0b72e659 | 1084 | netxen_free_adapter_offload(adapter); |
3d396eb1 | 1085 | |
2956640d | 1086 | err_out_iounmap: |
97daee83 | 1087 | netxen_cleanup_pci_map(adapter); |
cb8011ad | 1088 | |
6c80b18d MT |
1089 | err_out_free_netdev: |
1090 | free_netdev(netdev); | |
1091 | ||
1092 | err_out_free_res: | |
3d396eb1 | 1093 | pci_release_regions(pdev); |
6c80b18d MT |
1094 | |
1095 | err_out_disable_pdev: | |
2956640d | 1096 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
1097 | pci_disable_device(pdev); |
1098 | return err; | |
1099 | } | |
1100 | ||
1101 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
1102 | { | |
1103 | struct netxen_adapter *adapter; | |
3176ff3e | 1104 | struct net_device *netdev; |
3d396eb1 | 1105 | |
6c80b18d | 1106 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
1107 | if (adapter == NULL) |
1108 | return; | |
1109 | ||
6c80b18d MT |
1110 | netdev = adapter->netdev; |
1111 | ||
96acb6eb DP |
1112 | unregister_netdev(netdev); |
1113 | ||
96acb6eb | 1114 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
9f5bc7f1 | 1115 | netxen_nic_detach(adapter); |
06e9d9f9 DP |
1116 | |
1117 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
1118 | netxen_p3_free_mac_list(adapter); | |
96acb6eb | 1119 | } |
3d396eb1 | 1120 | |
439b454e DP |
1121 | if (adapter->portnum == 0) |
1122 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 1123 | |
97daee83 | 1124 | netxen_teardown_intr(adapter); |
3052246c | 1125 | |
97daee83 | 1126 | netxen_cleanup_pci_map(adapter); |
595e3fb8 MT |
1127 | |
1128 | pci_release_regions(pdev); | |
3052246c | 1129 | pci_disable_device(pdev); |
595e3fb8 MT |
1130 | pci_set_drvdata(pdev, NULL); |
1131 | ||
6c80b18d | 1132 | free_netdev(netdev); |
3d396eb1 AK |
1133 | } |
1134 | ||
0b72e659 DP |
1135 | static int |
1136 | netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) | |
1137 | { | |
1138 | ||
1139 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); | |
1140 | struct net_device *netdev = adapter->netdev; | |
1141 | ||
1142 | netif_device_detach(netdev); | |
1143 | ||
1144 | if (netif_running(netdev)) | |
1145 | netxen_nic_down(adapter, netdev); | |
1146 | ||
1147 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) | |
1148 | netxen_nic_detach(adapter); | |
1149 | ||
1150 | pci_save_state(pdev); | |
1151 | ||
1152 | if (netxen_nic_wol_supported(adapter)) { | |
1153 | pci_enable_wake(pdev, PCI_D3cold, 1); | |
1154 | pci_enable_wake(pdev, PCI_D3hot, 1); | |
1155 | } | |
1156 | ||
1157 | pci_disable_device(pdev); | |
1158 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int | |
1164 | netxen_nic_resume(struct pci_dev *pdev) | |
1165 | { | |
1166 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); | |
1167 | struct net_device *netdev = adapter->netdev; | |
1168 | int err; | |
1169 | ||
1170 | pci_set_power_state(pdev, PCI_D0); | |
1171 | pci_restore_state(pdev); | |
1172 | ||
1173 | err = pci_enable_device(pdev); | |
1174 | if (err) | |
1175 | return err; | |
1176 | ||
1177 | adapter->curr_window = 255; | |
1178 | ||
1179 | err = netxen_start_firmware(adapter); | |
1180 | if (err) { | |
1181 | dev_err(&pdev->dev, "failed to start firmware\n"); | |
1182 | return err; | |
1183 | } | |
1184 | ||
1185 | if (netif_running(netdev)) { | |
1186 | err = netxen_nic_attach(adapter); | |
1187 | if (err) | |
1188 | return err; | |
1189 | ||
1190 | err = netxen_nic_up(adapter, netdev); | |
1191 | if (err) | |
1192 | return err; | |
1193 | ||
1194 | netif_device_attach(netdev); | |
1195 | } | |
1196 | ||
1197 | return 0; | |
1198 | } | |
1199 | ||
3d396eb1 AK |
1200 | static int netxen_nic_open(struct net_device *netdev) |
1201 | { | |
4cf1653a | 1202 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1203 | int err = 0; |
3d396eb1 | 1204 | |
dcd56fdb DP |
1205 | if (adapter->driver_mismatch) |
1206 | return -EIO; | |
1207 | ||
3d396eb1 | 1208 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
9f5bc7f1 DP |
1209 | err = netxen_nic_attach(adapter); |
1210 | if (err) | |
3d396eb1 | 1211 | return err; |
ed25ffa1 | 1212 | } |
2956640d | 1213 | |
9f5bc7f1 DP |
1214 | err = netxen_nic_up(adapter, netdev); |
1215 | if (err) | |
1216 | goto err_out; | |
05aaa02d | 1217 | |
dcd56fdb | 1218 | netif_start_queue(netdev); |
3d396eb1 AK |
1219 | |
1220 | return 0; | |
2956640d | 1221 | |
9f5bc7f1 DP |
1222 | err_out: |
1223 | netxen_nic_detach(adapter); | |
2956640d | 1224 | return err; |
3d396eb1 AK |
1225 | } |
1226 | ||
1227 | /* | |
1228 | * netxen_nic_close - Disables a network interface entry point | |
1229 | */ | |
1230 | static int netxen_nic_close(struct net_device *netdev) | |
1231 | { | |
3176ff3e | 1232 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1233 | |
9f5bc7f1 | 1234 | netxen_nic_down(adapter, netdev); |
3d396eb1 AK |
1235 | return 0; |
1236 | } | |
1237 | ||
391587c3 | 1238 | static bool netxen_tso_check(struct net_device *netdev, |
cd1f8160 DP |
1239 | struct cmd_desc_type0 *desc, struct sk_buff *skb) |
1240 | { | |
391587c3 DP |
1241 | bool tso = false; |
1242 | u8 opcode = TX_ETHER_PKT; | |
cdff1036 DP |
1243 | __be16 protocol = skb->protocol; |
1244 | u16 flags = 0; | |
1245 | ||
09640e63 | 1246 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { |
cdff1036 DP |
1247 | struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data; |
1248 | protocol = vh->h_vlan_encapsulated_proto; | |
1249 | flags = FLAGS_VLAN_TAGGED; | |
1250 | } | |
cd1f8160 | 1251 | |
391587c3 DP |
1252 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1253 | skb_shinfo(skb)->gso_size > 0) { | |
1254 | ||
1255 | desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1256 | desc->total_hdr_length = | |
1257 | skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1258 | ||
09640e63 | 1259 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? |
391587c3 DP |
1260 | TX_TCP_LSO6 : TX_TCP_LSO; |
1261 | tso = true; | |
cd1f8160 DP |
1262 | |
1263 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
391587c3 DP |
1264 | u8 l4proto; |
1265 | ||
09640e63 | 1266 | if (protocol == cpu_to_be16(ETH_P_IP)) { |
391587c3 DP |
1267 | l4proto = ip_hdr(skb)->protocol; |
1268 | ||
1269 | if (l4proto == IPPROTO_TCP) | |
1270 | opcode = TX_TCP_PKT; | |
1271 | else if(l4proto == IPPROTO_UDP) | |
1272 | opcode = TX_UDP_PKT; | |
09640e63 | 1273 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { |
391587c3 DP |
1274 | l4proto = ipv6_hdr(skb)->nexthdr; |
1275 | ||
1276 | if (l4proto == IPPROTO_TCP) | |
1277 | opcode = TX_TCPV6_PKT; | |
1278 | else if(l4proto == IPPROTO_UDP) | |
1279 | opcode = TX_UDPV6_PKT; | |
1280 | } | |
cd1f8160 DP |
1281 | } |
1282 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1283 | desc->ip_hdr_offset = skb_network_offset(skb); | |
cdff1036 | 1284 | netxen_set_tx_flags_opcode(desc, flags, opcode); |
391587c3 | 1285 | return tso; |
cd1f8160 DP |
1286 | } |
1287 | ||
6f703406 DP |
1288 | static void |
1289 | netxen_clean_tx_dma_mapping(struct pci_dev *pdev, | |
1290 | struct netxen_cmd_buffer *pbuf, int last) | |
1291 | { | |
1292 | int k; | |
1293 | struct netxen_skb_frag *buffrag; | |
1294 | ||
1295 | buffrag = &pbuf->frag_array[0]; | |
1296 | pci_unmap_single(pdev, buffrag->dma, | |
1297 | buffrag->length, PCI_DMA_TODEVICE); | |
1298 | ||
1299 | for (k = 1; k < last; k++) { | |
1300 | buffrag = &pbuf->frag_array[k]; | |
1301 | pci_unmap_page(pdev, buffrag->dma, | |
1302 | buffrag->length, PCI_DMA_TODEVICE); | |
1303 | } | |
1304 | } | |
1305 | ||
d32cc3d2 DP |
1306 | static inline void |
1307 | netxen_clear_cmddesc(u64 *desc) | |
1308 | { | |
1309 | int i; | |
1310 | for (i = 0; i < 8; i++) | |
1311 | desc[i] = 0ULL; | |
1312 | } | |
1313 | ||
1314 | static int | |
1315 | netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
3d396eb1 | 1316 | { |
3176ff3e | 1317 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1318 | struct netxen_hardware_context *hw = &adapter->ahw; |
1319 | unsigned int first_seg_len = skb->len - skb->data_len; | |
391587c3 | 1320 | struct netxen_cmd_buffer *pbuf; |
3d396eb1 | 1321 | struct netxen_skb_frag *buffrag; |
391587c3 | 1322 | struct cmd_desc_type0 *hwdesc; |
6f703406 DP |
1323 | struct pci_dev *pdev = adapter->pdev; |
1324 | dma_addr_t temp_dma; | |
391587c3 | 1325 | int i, k; |
3d396eb1 | 1326 | |
ba53e6b4 | 1327 | u32 producer, consumer; |
391587c3 | 1328 | int frag_count, no_of_desc; |
438627c7 | 1329 | u32 num_txd = adapter->num_txd; |
391587c3 | 1330 | bool is_tso = false; |
3d396eb1 | 1331 | |
3d396eb1 AK |
1332 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1333 | ||
3d396eb1 AK |
1334 | /* There 4 fragments per descriptor */ |
1335 | no_of_desc = (frag_count + 3) >> 2; | |
53a01e00 | 1336 | |
ba53e6b4 DP |
1337 | producer = adapter->cmd_producer; |
1338 | smp_mb(); | |
1339 | consumer = adapter->last_cmd_consumer; | |
1340 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
1341 | netif_stop_queue(netdev); | |
1342 | smp_mb(); | |
1343 | return NETDEV_TX_BUSY; | |
53a01e00 | 1344 | } |
3d396eb1 | 1345 | |
3d396eb1 | 1346 | /* Copy the descriptors into the hardware */ |
3d396eb1 | 1347 | hwdesc = &hw->cmd_desc_head[producer]; |
d32cc3d2 | 1348 | netxen_clear_cmddesc((u64 *)hwdesc); |
3d396eb1 AK |
1349 | /* Take skb->data itself */ |
1350 | pbuf = &adapter->cmd_buf_arr[producer]; | |
391587c3 DP |
1351 | |
1352 | is_tso = netxen_tso_check(netdev, hwdesc, skb); | |
1353 | ||
3d396eb1 | 1354 | pbuf->skb = skb; |
3d396eb1 | 1355 | pbuf->frag_count = frag_count; |
3d396eb1 | 1356 | buffrag = &pbuf->frag_array[0]; |
6f703406 | 1357 | temp_dma = pci_map_single(pdev, skb->data, first_seg_len, |
3d396eb1 | 1358 | PCI_DMA_TODEVICE); |
6f703406 DP |
1359 | if (pci_dma_mapping_error(pdev, temp_dma)) |
1360 | goto drop_packet; | |
1361 | ||
1362 | buffrag->dma = temp_dma; | |
3d396eb1 | 1363 | buffrag->length = first_seg_len; |
391587c3 DP |
1364 | netxen_set_tx_frags_len(hwdesc, frag_count, skb->len); |
1365 | netxen_set_tx_port(hwdesc, adapter->portnum); | |
3d396eb1 | 1366 | |
d32cc3d2 | 1367 | hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len); |
3d396eb1 AK |
1368 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); |
1369 | ||
1370 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1371 | struct skb_frag_struct *frag; | |
1372 | int len, temp_len; | |
1373 | unsigned long offset; | |
3d396eb1 AK |
1374 | |
1375 | /* move to next desc. if there is a need */ | |
1376 | if ((i & 0x3) == 0) { | |
1377 | k = 0; | |
ba53e6b4 | 1378 | producer = get_next_index(producer, num_txd); |
3d396eb1 | 1379 | hwdesc = &hw->cmd_desc_head[producer]; |
d32cc3d2 | 1380 | netxen_clear_cmddesc((u64 *)hwdesc); |
53a01e00 | 1381 | pbuf = &adapter->cmd_buf_arr[producer]; |
1382 | pbuf->skb = NULL; | |
3d396eb1 AK |
1383 | } |
1384 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1385 | len = frag->size; | |
1386 | offset = frag->page_offset; | |
1387 | ||
1388 | temp_len = len; | |
6f703406 | 1389 | temp_dma = pci_map_page(pdev, frag->page, offset, |
3d396eb1 | 1390 | len, PCI_DMA_TODEVICE); |
6f703406 DP |
1391 | if (pci_dma_mapping_error(pdev, temp_dma)) { |
1392 | netxen_clean_tx_dma_mapping(pdev, pbuf, i); | |
1393 | goto drop_packet; | |
1394 | } | |
3d396eb1 AK |
1395 | |
1396 | buffrag++; | |
1397 | buffrag->dma = temp_dma; | |
1398 | buffrag->length = temp_len; | |
1399 | ||
d32cc3d2 | 1400 | hwdesc->buffer_length[k] = cpu_to_le16(temp_len); |
3d396eb1 AK |
1401 | switch (k) { |
1402 | case 0: | |
3d396eb1 AK |
1403 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); |
1404 | break; | |
1405 | case 1: | |
3d396eb1 AK |
1406 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); |
1407 | break; | |
1408 | case 2: | |
3d396eb1 AK |
1409 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); |
1410 | break; | |
1411 | case 3: | |
3d396eb1 AK |
1412 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1413 | break; | |
1414 | } | |
1415 | frag++; | |
1416 | } | |
ba53e6b4 | 1417 | producer = get_next_index(producer, num_txd); |
3d396eb1 | 1418 | |
3d396eb1 AK |
1419 | /* For LSO, we need to copy the MAC/IP/TCP headers into |
1420 | * the descriptor ring | |
1421 | */ | |
391587c3 | 1422 | if (is_tso) { |
3d396eb1 | 1423 | int hdr_len, first_hdr_len, more_hdr; |
391587c3 | 1424 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
ed25ffa1 AK |
1425 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1426 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1427 | more_hdr = 1; |
1428 | } else { | |
1429 | first_hdr_len = hdr_len; | |
1430 | more_hdr = 0; | |
1431 | } | |
1432 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1433 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1434 | pbuf = &adapter->cmd_buf_arr[producer]; |
1435 | pbuf->skb = NULL; | |
3d396eb1 AK |
1436 | |
1437 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1438 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1439 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1440 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1441 | |
1442 | if (more_hdr) { | |
1443 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1444 | pbuf = &adapter->cmd_buf_arr[producer]; |
1445 | pbuf->skb = NULL; | |
3d396eb1 AK |
1446 | /* copy the next 64 bytes - should be enough except |
1447 | * for pathological case | |
1448 | */ | |
d626f62b ACM |
1449 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1450 | hwdesc, | |
1451 | (hdr_len - | |
1452 | first_hdr_len)); | |
ba53e6b4 | 1453 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1454 | } |
1455 | } | |
6c80b18d | 1456 | |
ba53e6b4 | 1457 | adapter->cmd_producer = producer; |
5dc16268 | 1458 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1459 | |
ba53e6b4 | 1460 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1461 | |
ba53e6b4 | 1462 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1463 | netdev->trans_start = jiffies; |
1464 | ||
3d396eb1 | 1465 | return NETDEV_TX_OK; |
6f703406 DP |
1466 | |
1467 | drop_packet: | |
1468 | adapter->stats.txdropped++; | |
1469 | dev_kfree_skb_any(skb); | |
1470 | return NETDEV_TX_OK; | |
3d396eb1 AK |
1471 | } |
1472 | ||
a97342f9 DP |
1473 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1474 | { | |
1475 | struct net_device *netdev = adapter->netdev; | |
1476 | uint32_t temp, temp_state, temp_val; | |
1477 | int rv = 0; | |
1478 | ||
1479 | temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE); | |
1480 | ||
1481 | temp_state = nx_get_temp_state(temp); | |
1482 | temp_val = nx_get_temp_val(temp); | |
1483 | ||
1484 | if (temp_state == NX_TEMP_PANIC) { | |
1485 | printk(KERN_ALERT | |
1486 | "%s: Device temperature %d degrees C exceeds" | |
1487 | " maximum allowed. Hardware has been shut down.\n", | |
1488 | netxen_nic_driver_name, temp_val); | |
1489 | ||
1490 | netif_carrier_off(netdev); | |
1491 | netif_stop_queue(netdev); | |
1492 | rv = 1; | |
1493 | } else if (temp_state == NX_TEMP_WARN) { | |
1494 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1495 | printk(KERN_ALERT | |
1496 | "%s: Device temperature %d degrees C " | |
1497 | "exceeds operating range." | |
1498 | " Immediate action needed.\n", | |
1499 | netxen_nic_driver_name, temp_val); | |
1500 | } | |
1501 | } else { | |
1502 | if (adapter->temp == NX_TEMP_WARN) { | |
1503 | printk(KERN_INFO | |
1504 | "%s: Device temperature is now %d degrees C" | |
1505 | " in normal range.\n", netxen_nic_driver_name, | |
1506 | temp_val); | |
1507 | } | |
1508 | } | |
1509 | adapter->temp = temp_state; | |
1510 | return rv; | |
1511 | } | |
1512 | ||
1513 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) | |
1514 | { | |
1515 | struct net_device *netdev = adapter->netdev; | |
1516 | u32 val, port, linkup; | |
1517 | ||
1518 | port = adapter->physical_port; | |
1519 | ||
24a7a455 DP |
1520 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1521 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); | |
1522 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); | |
1523 | linkup = (val == XG_LINK_UP_P3); | |
c9fc891f | 1524 | } else { |
24a7a455 | 1525 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); |
1e2d0059 | 1526 | if (adapter->ahw.port_type == NETXEN_NIC_GBE) |
24a7a455 DP |
1527 | linkup = (val >> port) & 1; |
1528 | else { | |
c9fc891f DP |
1529 | val = (val >> port*8) & 0xff; |
1530 | linkup = (val == XG_LINK_UP); | |
c9fc891f | 1531 | } |
a97342f9 DP |
1532 | } |
1533 | ||
1534 | if (adapter->ahw.linkup && !linkup) { | |
1535 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1536 | netxen_nic_driver_name, netdev->name); | |
1537 | adapter->ahw.linkup = 0; | |
1538 | if (netif_running(netdev)) { | |
1539 | netif_carrier_off(netdev); | |
1540 | netif_stop_queue(netdev); | |
1541 | } | |
c7860a2a DP |
1542 | |
1543 | netxen_nic_set_link_parameters(adapter); | |
a97342f9 DP |
1544 | } else if (!adapter->ahw.linkup && linkup) { |
1545 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1546 | netxen_nic_driver_name, netdev->name); | |
1547 | adapter->ahw.linkup = 1; | |
1548 | if (netif_running(netdev)) { | |
1549 | netif_carrier_on(netdev); | |
1550 | netif_wake_queue(netdev); | |
1551 | } | |
c7860a2a DP |
1552 | |
1553 | netxen_nic_set_link_parameters(adapter); | |
a97342f9 DP |
1554 | } |
1555 | } | |
1556 | ||
3d396eb1 AK |
1557 | static void netxen_watchdog(unsigned long v) |
1558 | { | |
1559 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1560 | |
1561 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1562 | } |
1563 | ||
a97342f9 DP |
1564 | void netxen_watchdog_task(struct work_struct *work) |
1565 | { | |
1566 | struct netxen_adapter *adapter = | |
1567 | container_of(work, struct netxen_adapter, watchdog_task); | |
1568 | ||
1569 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) | |
1570 | return; | |
1571 | ||
1572 | netxen_nic_handle_phy_intr(adapter); | |
1573 | ||
922c4f2c DP |
1574 | if (netif_running(adapter->netdev)) |
1575 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
a97342f9 DP |
1576 | } |
1577 | ||
3d396eb1 AK |
1578 | static void netxen_tx_timeout(struct net_device *netdev) |
1579 | { | |
3176ff3e MT |
1580 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1581 | netdev_priv(netdev); | |
1582 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1583 | } |
1584 | ||
6d5aefb8 | 1585 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1586 | { |
4790654c | 1587 | struct netxen_adapter *adapter = |
3176ff3e | 1588 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1589 | |
1590 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1591 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1592 | |
d8b100c5 | 1593 | netxen_napi_disable(adapter); |
ba53e6b4 | 1594 | |
6c80b18d | 1595 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 | 1596 | |
d8b100c5 | 1597 | netxen_napi_enable(adapter); |
6c80b18d | 1598 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1599 | } |
1600 | ||
a97342f9 DP |
1601 | /* |
1602 | * netxen_nic_get_stats - Get System Network Statistics | |
1603 | * @netdev: network interface device structure | |
1604 | */ | |
1605 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) | |
1606 | { | |
1607 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1608 | struct net_device_stats *stats = &adapter->net_stats; | |
1609 | ||
1610 | memset(stats, 0, sizeof(*stats)); | |
1611 | ||
1612 | /* total packets received */ | |
1613 | stats->rx_packets = adapter->stats.no_rcv; | |
1614 | /* total packets transmitted */ | |
1615 | stats->tx_packets = adapter->stats.xmitedframes + | |
1616 | adapter->stats.xmitfinished; | |
1617 | /* total bytes received */ | |
1618 | stats->rx_bytes = adapter->stats.rxbytes; | |
1619 | /* total bytes transmitted */ | |
1620 | stats->tx_bytes = adapter->stats.txbytes; | |
1621 | /* bad packets received */ | |
1622 | stats->rx_errors = adapter->stats.rcvdbadskb; | |
1623 | /* packet transmit problems */ | |
1624 | stats->tx_errors = adapter->stats.nocmddescriptor; | |
1625 | /* no space in linux buffers */ | |
1626 | stats->rx_dropped = adapter->stats.rxdropped; | |
1627 | /* no space available in linux */ | |
1628 | stats->tx_dropped = adapter->stats.txdropped; | |
1629 | ||
1630 | return stats; | |
1631 | } | |
1632 | ||
e4c93c81 | 1633 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1634 | { |
d8b100c5 DP |
1635 | struct nx_host_sds_ring *sds_ring = data; |
1636 | struct netxen_adapter *adapter = sds_ring->adapter; | |
d71e1be8 DP |
1637 | u32 status = 0; |
1638 | ||
1639 | status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1640 | ||
1641 | if (!(status & adapter->legacy_intr.int_vec_bit)) | |
05aaa02d | 1642 | return IRQ_NONE; |
e01872af | 1643 | |
d71e1be8 DP |
1644 | if (adapter->ahw.revision_id >= NX_P3_B1) { |
1645 | /* check interrupt state machine, to be sure */ | |
1646 | status = adapter->pci_read_immediate(adapter, | |
1647 | ISR_INT_STATE_REG); | |
1648 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1649 | return IRQ_NONE; | |
1650 | ||
092bc571 DP |
1651 | } else { |
1652 | unsigned long our_int = 0; | |
d71e1be8 DP |
1653 | |
1654 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); | |
092bc571 | 1655 | |
d71e1be8 | 1656 | /* not our interrupt */ |
092bc571 | 1657 | if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) |
d71e1be8 DP |
1658 | return IRQ_NONE; |
1659 | ||
092bc571 DP |
1660 | /* claim interrupt */ |
1661 | adapter->pci_write_normalize(adapter, | |
1662 | CRB_INT_VECTOR, (our_int & 0xffffffff)); | |
e01872af | 1663 | } |
1664 | ||
092bc571 DP |
1665 | /* clear interrupt */ |
1666 | if (adapter->fw_major < 4) | |
d8b100c5 | 1667 | netxen_nic_disable_int(sds_ring); |
092bc571 DP |
1668 | |
1669 | adapter->pci_write_immediate(adapter, | |
1670 | adapter->legacy_intr.tgt_status_reg, | |
1671 | 0xffffffff); | |
1672 | /* read twice to ensure write is flushed */ | |
1673 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1674 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1675 | ||
d8b100c5 | 1676 | napi_schedule(&sds_ring->napi); |
3d396eb1 AK |
1677 | |
1678 | return IRQ_HANDLED; | |
1679 | } | |
1680 | ||
e4c93c81 | 1681 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d | 1682 | { |
d8b100c5 DP |
1683 | struct nx_host_sds_ring *sds_ring = data; |
1684 | struct netxen_adapter *adapter = sds_ring->adapter; | |
05aaa02d | 1685 | |
092bc571 DP |
1686 | /* clear interrupt */ |
1687 | adapter->pci_write_immediate(adapter, | |
1688 | msi_tgt_status[adapter->ahw.pci_func], 0xffffffff); | |
1689 | ||
d8b100c5 | 1690 | napi_schedule(&sds_ring->napi); |
05aaa02d DP |
1691 | return IRQ_HANDLED; |
1692 | } | |
1693 | ||
b3df68f8 DP |
1694 | static irqreturn_t netxen_msix_intr(int irq, void *data) |
1695 | { | |
d8b100c5 | 1696 | struct nx_host_sds_ring *sds_ring = data; |
b3df68f8 | 1697 | |
d8b100c5 | 1698 | napi_schedule(&sds_ring->napi); |
b3df68f8 DP |
1699 | return IRQ_HANDLED; |
1700 | } | |
1701 | ||
bea3348e | 1702 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1703 | { |
d8b100c5 DP |
1704 | struct nx_host_sds_ring *sds_ring = |
1705 | container_of(napi, struct nx_host_sds_ring, napi); | |
1706 | ||
1707 | struct netxen_adapter *adapter = sds_ring->adapter; | |
1708 | ||
05aaa02d | 1709 | int tx_complete; |
bea3348e | 1710 | int work_done; |
3d396eb1 | 1711 | |
05aaa02d | 1712 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1713 | |
d8b100c5 | 1714 | work_done = netxen_process_rcv_ring(sds_ring, budget); |
3d396eb1 | 1715 | |
05aaa02d | 1716 | if ((work_done < budget) && tx_complete) { |
d8b100c5 DP |
1717 | napi_complete(&sds_ring->napi); |
1718 | netxen_nic_enable_int(sds_ring); | |
3d396eb1 AK |
1719 | } |
1720 | ||
bea3348e | 1721 | return work_done; |
3d396eb1 AK |
1722 | } |
1723 | ||
1724 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1725 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1726 | { | |
3176ff3e | 1727 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1728 | disable_irq(adapter->irq); |
1494a814 | 1729 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1730 | enable_irq(adapter->irq); |
1731 | } | |
1732 | #endif | |
3d396eb1 AK |
1733 | |
1734 | static struct pci_driver netxen_driver = { | |
1735 | .name = netxen_nic_driver_name, | |
1736 | .id_table = netxen_pci_tbl, | |
1737 | .probe = netxen_nic_probe, | |
0b72e659 DP |
1738 | .remove = __devexit_p(netxen_nic_remove), |
1739 | .suspend = netxen_nic_suspend, | |
1740 | .resume = netxen_nic_resume | |
3d396eb1 AK |
1741 | }; |
1742 | ||
1743 | /* Driver Registration on NetXen card */ | |
1744 | ||
1745 | static int __init netxen_init_module(void) | |
1746 | { | |
ff4fbd43 DP |
1747 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
1748 | ||
79ea13ce | 1749 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1750 | return -ENOMEM; |
1751 | ||
184231bd | 1752 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1753 | } |
1754 | ||
1755 | module_init(netxen_init_module); | |
1756 | ||
1757 | static void __exit netxen_exit_module(void) | |
1758 | { | |
3d396eb1 | 1759 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1760 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1761 | } |
1762 | ||
1763 | module_exit(netxen_exit_module); |