Commit | Line | Data |
---|---|---|
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> |
e98e3350 | 32 | #include <linux/interrupt.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 | 109 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
cb2107be | 110 | struct nx_host_tx_ring *tx_ring) |
3176ff3e | 111 | { |
cb2107be DP |
112 | NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); |
113 | ||
114 | if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) { | |
115 | netif_stop_queue(adapter->netdev); | |
116 | smp_mb(); | |
117 | } | |
3176ff3e MT |
118 | } |
119 | ||
7830b22c DP |
120 | static uint32_t crb_cmd_consumer[4] = { |
121 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, | |
122 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 | |
123 | }; | |
124 | ||
3ce06a32 DP |
125 | static inline void |
126 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
cb2107be | 127 | struct nx_host_tx_ring *tx_ring) |
3176ff3e | 128 | { |
cb2107be | 129 | NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); |
3176ff3e MT |
130 | } |
131 | ||
2956640d | 132 | static uint32_t msi_tgt_status[8] = { |
443be796 | 133 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
2956640d DP |
134 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
135 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
136 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
443be796 DP |
137 | }; |
138 | ||
2956640d DP |
139 | static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
140 | ||
d8b100c5 | 141 | static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) |
4638aef1 | 142 | { |
d8b100c5 DP |
143 | struct netxen_adapter *adapter = sds_ring->adapter; |
144 | ||
f98a9f69 | 145 | NXWR32(adapter, sds_ring->crb_intr_mask, 0); |
4638aef1 SH |
146 | } |
147 | ||
d8b100c5 | 148 | static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) |
4638aef1 | 149 | { |
d8b100c5 DP |
150 | struct netxen_adapter *adapter = sds_ring->adapter; |
151 | ||
f98a9f69 | 152 | NXWR32(adapter, sds_ring->crb_intr_mask, 0x1); |
4638aef1 | 153 | |
092bc571 DP |
154 | if (!NETXEN_IS_MSI_FAMILY(adapter)) |
155 | adapter->pci_write_immediate(adapter, | |
156 | adapter->legacy_intr.tgt_mask_reg, 0xfbff); | |
4638aef1 SH |
157 | } |
158 | ||
71dcddbd DP |
159 | static int |
160 | netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) | |
161 | { | |
162 | int size = sizeof(struct nx_host_sds_ring) * count; | |
163 | ||
164 | recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); | |
165 | ||
166 | return (recv_ctx->sds_rings == NULL); | |
167 | } | |
168 | ||
d8b100c5 | 169 | static void |
71dcddbd DP |
170 | netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) |
171 | { | |
172 | if (recv_ctx->sds_rings != NULL) | |
173 | kfree(recv_ctx->sds_rings); | |
174 | } | |
175 | ||
176 | static int | |
d8b100c5 DP |
177 | netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) |
178 | { | |
179 | int ring; | |
180 | struct nx_host_sds_ring *sds_ring; | |
181 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
182 | ||
71dcddbd DP |
183 | if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) |
184 | return 1; | |
185 | ||
d8b100c5 DP |
186 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
187 | sds_ring = &recv_ctx->sds_rings[ring]; | |
188 | netif_napi_add(netdev, &sds_ring->napi, | |
189 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
190 | } | |
71dcddbd DP |
191 | |
192 | return 0; | |
d8b100c5 DP |
193 | } |
194 | ||
195 | static void | |
196 | netxen_napi_enable(struct netxen_adapter *adapter) | |
197 | { | |
198 | int ring; | |
199 | struct nx_host_sds_ring *sds_ring; | |
200 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
201 | ||
202 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
203 | sds_ring = &recv_ctx->sds_rings[ring]; | |
204 | napi_enable(&sds_ring->napi); | |
205 | netxen_nic_enable_int(sds_ring); | |
206 | } | |
207 | } | |
208 | ||
209 | static void | |
210 | netxen_napi_disable(struct netxen_adapter *adapter) | |
211 | { | |
212 | int ring; | |
213 | struct nx_host_sds_ring *sds_ring; | |
214 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
215 | ||
216 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
217 | sds_ring = &recv_ctx->sds_rings[ring]; | |
be339aee | 218 | netxen_nic_disable_int(sds_ring); |
b2af9cb0 DP |
219 | napi_synchronize(&sds_ring->napi); |
220 | napi_disable(&sds_ring->napi); | |
d8b100c5 DP |
221 | } |
222 | } | |
223 | ||
50c643e7 | 224 | static int nx_set_dma_mask(struct netxen_adapter *adapter) |
2956640d DP |
225 | { |
226 | struct pci_dev *pdev = adapter->pdev; | |
1f434f63 DP |
227 | uint64_t mask, cmask; |
228 | ||
229 | adapter->pci_using_dac = 0; | |
2956640d | 230 | |
6afd142f | 231 | mask = DMA_BIT_MASK(32); |
6afd142f | 232 | cmask = DMA_BIT_MASK(32); |
1f434f63 | 233 | |
50c643e7 | 234 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
1f434f63 | 235 | #ifndef CONFIG_IA64 |
6afd142f | 236 | mask = DMA_BIT_MASK(35); |
1f434f63 | 237 | #endif |
50c643e7 DP |
238 | } else { |
239 | mask = DMA_BIT_MASK(39); | |
240 | cmask = mask; | |
241 | } | |
242 | ||
2956640d | 243 | if (pci_set_dma_mask(pdev, mask) == 0 && |
1f434f63 | 244 | pci_set_consistent_dma_mask(pdev, cmask) == 0) { |
2956640d DP |
245 | adapter->pci_using_dac = 1; |
246 | return 0; | |
247 | } | |
2956640d | 248 | |
1f434f63 DP |
249 | return -EIO; |
250 | } | |
251 | ||
252 | /* Update addressable range if firmware supports it */ | |
253 | static int | |
254 | nx_update_dma_mask(struct netxen_adapter *adapter) | |
255 | { | |
256 | int change, shift, err; | |
50c643e7 | 257 | uint64_t mask, old_mask, old_cmask; |
1f434f63 DP |
258 | struct pci_dev *pdev = adapter->pdev; |
259 | ||
260 | change = 0; | |
261 | ||
f98a9f69 | 262 | shift = NXRD32(adapter, CRB_DMA_SHIFT); |
f60f7856 | 263 | if (shift > 32) |
1f434f63 DP |
264 | return 0; |
265 | ||
266 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) | |
267 | change = 1; | |
268 | else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) | |
269 | change = 1; | |
270 | ||
271 | if (change) { | |
272 | old_mask = pdev->dma_mask; | |
50c643e7 DP |
273 | old_cmask = pdev->dev.coherent_dma_mask; |
274 | ||
f60f7856 | 275 | mask = DMA_BIT_MASK(32+shift); |
1f434f63 DP |
276 | |
277 | err = pci_set_dma_mask(pdev, mask); | |
278 | if (err) | |
50c643e7 DP |
279 | goto err_out; |
280 | ||
281 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
282 | ||
283 | err = pci_set_consistent_dma_mask(pdev, mask); | |
284 | if (err) | |
285 | goto err_out; | |
286 | } | |
287 | dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); | |
2956640d DP |
288 | } |
289 | ||
2956640d | 290 | return 0; |
50c643e7 DP |
291 | |
292 | err_out: | |
293 | pci_set_dma_mask(pdev, old_mask); | |
294 | pci_set_consistent_dma_mask(pdev, old_cmask); | |
295 | return err; | |
2956640d DP |
296 | } |
297 | ||
298 | static void netxen_check_options(struct netxen_adapter *adapter) | |
299 | { | |
438627c7 DP |
300 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
301 | adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G; | |
302 | else if (adapter->ahw.port_type == NETXEN_NIC_GBE) | |
303 | adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G; | |
2956640d | 304 | |
f6d21f44 DP |
305 | adapter->msix_supported = 0; |
306 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
c7860a2a | 307 | adapter->msix_supported = !!use_msi_x; |
f6d21f44 DP |
308 | adapter->rss_supported = !!use_msi_x; |
309 | } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) { | |
310 | switch (adapter->ahw.board_type) { | |
311 | case NETXEN_BRDTYPE_P2_SB31_10G: | |
312 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: | |
f6d21f44 DP |
313 | adapter->msix_supported = !!use_msi_x; |
314 | adapter->rss_supported = !!use_msi_x; | |
315 | break; | |
316 | default: | |
317 | break; | |
318 | } | |
319 | } | |
2956640d | 320 | |
438627c7 DP |
321 | adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST; |
322 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS; | |
323 | adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; | |
2956640d | 324 | |
2956640d DP |
325 | return; |
326 | } | |
327 | ||
328 | static int | |
329 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
330 | { | |
27c915a4 | 331 | u32 val, timeout; |
2956640d DP |
332 | |
333 | if (first_boot == 0x55555555) { | |
334 | /* This is the first boot after power up */ | |
f98a9f69 | 335 | NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); |
27c915a4 DP |
336 | |
337 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
338 | return 0; | |
2956640d DP |
339 | |
340 | /* PCI bus master workaround */ | |
f98a9f69 | 341 | first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); |
2956640d DP |
342 | if (!(first_boot & 0x4)) { |
343 | first_boot |= 0x4; | |
f98a9f69 DP |
344 | NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); |
345 | first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); | |
2956640d DP |
346 | } |
347 | ||
348 | /* This is the first boot after power up */ | |
f98a9f69 | 349 | first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); |
2956640d DP |
350 | if (first_boot != 0x80000f) { |
351 | /* clear the register for future unloads/loads */ | |
f98a9f69 | 352 | NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); |
27c915a4 | 353 | return -EIO; |
2956640d DP |
354 | } |
355 | ||
27c915a4 | 356 | /* Start P2 boot loader */ |
f98a9f69 DP |
357 | val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); |
358 | NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); | |
27c915a4 DP |
359 | timeout = 0; |
360 | do { | |
361 | msleep(1); | |
f98a9f69 | 362 | val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
27c915a4 DP |
363 | |
364 | if (++timeout > 5000) | |
365 | return -EIO; | |
366 | ||
367 | } while (val == NETXEN_BDINFO_MAGIC); | |
2956640d | 368 | } |
27c915a4 | 369 | return 0; |
2956640d DP |
370 | } |
371 | ||
372 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
373 | { | |
374 | u32 val, data; | |
375 | ||
1e2d0059 | 376 | val = adapter->ahw.board_type; |
2956640d DP |
377 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || |
378 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
379 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
380 | data = NETXEN_PORT_MODE_802_3_AP; | |
f98a9f69 | 381 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
2956640d DP |
382 | } else if (port_mode == NETXEN_PORT_MODE_XG) { |
383 | data = NETXEN_PORT_MODE_XG; | |
f98a9f69 | 384 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
2956640d DP |
385 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { |
386 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
f98a9f69 | 387 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
2956640d DP |
388 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { |
389 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
f98a9f69 | 390 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
2956640d DP |
391 | } else { |
392 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
f98a9f69 | 393 | NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
2956640d DP |
394 | } |
395 | ||
396 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && | |
397 | (wol_port_mode != NETXEN_PORT_MODE_XG) && | |
398 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && | |
399 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { | |
400 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; | |
401 | } | |
f98a9f69 | 402 | NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); |
2956640d DP |
403 | } |
404 | } | |
405 | ||
2956640d DP |
406 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) |
407 | { | |
408 | u32 control; | |
409 | int pos; | |
410 | ||
411 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
412 | if (pos) { | |
413 | pci_read_config_dword(pdev, pos, &control); | |
414 | if (enable) | |
415 | control |= PCI_MSIX_FLAGS_ENABLE; | |
416 | else | |
417 | control = 0; | |
418 | pci_write_config_dword(pdev, pos, control); | |
419 | } | |
420 | } | |
421 | ||
be339aee | 422 | static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) |
2956640d DP |
423 | { |
424 | int i; | |
425 | ||
be339aee | 426 | for (i = 0; i < count; i++) |
2956640d DP |
427 | adapter->msix_entries[i].entry = i; |
428 | } | |
429 | ||
9dc28efe DP |
430 | static int |
431 | netxen_read_mac_addr(struct netxen_adapter *adapter) | |
432 | { | |
433 | int i; | |
434 | unsigned char *p; | |
435 | __le64 mac_addr; | |
9dc28efe DP |
436 | struct net_device *netdev = adapter->netdev; |
437 | struct pci_dev *pdev = adapter->pdev; | |
438 | ||
9dc28efe DP |
439 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
440 | if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) | |
441 | return -EIO; | |
442 | } else { | |
443 | if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) | |
444 | return -EIO; | |
445 | } | |
446 | ||
447 | p = (unsigned char *)&mac_addr; | |
448 | for (i = 0; i < 6; i++) | |
449 | netdev->dev_addr[i] = *(p + 5 - i); | |
450 | ||
451 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
452 | ||
453 | /* set station address */ | |
454 | ||
e174961c JB |
455 | if (!is_valid_ether_addr(netdev->perm_addr)) |
456 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); | |
9dc28efe DP |
457 | |
458 | return 0; | |
459 | } | |
460 | ||
3d0a3cc9 DP |
461 | int netxen_nic_set_mac(struct net_device *netdev, void *p) |
462 | { | |
463 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
464 | struct sockaddr *addr = p; | |
465 | ||
466 | if (!is_valid_ether_addr(addr->sa_data)) | |
467 | return -EINVAL; | |
468 | ||
469 | if (netif_running(netdev)) { | |
470 | netif_device_detach(netdev); | |
471 | netxen_napi_disable(adapter); | |
472 | } | |
473 | ||
474 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
475 | adapter->macaddr_set(adapter, addr->sa_data); | |
476 | ||
477 | if (netif_running(netdev)) { | |
478 | netif_device_attach(netdev); | |
479 | netxen_napi_enable(adapter); | |
480 | } | |
481 | return 0; | |
482 | } | |
483 | ||
1abd266f SH |
484 | static void netxen_set_multicast_list(struct net_device *dev) |
485 | { | |
486 | struct netxen_adapter *adapter = netdev_priv(dev); | |
487 | ||
3d0a3cc9 | 488 | adapter->set_multi(dev); |
1abd266f SH |
489 | } |
490 | ||
491 | static const struct net_device_ops netxen_netdev_ops = { | |
492 | .ndo_open = netxen_nic_open, | |
493 | .ndo_stop = netxen_nic_close, | |
494 | .ndo_start_xmit = netxen_nic_xmit_frame, | |
495 | .ndo_get_stats = netxen_nic_get_stats, | |
496 | .ndo_validate_addr = eth_validate_addr, | |
497 | .ndo_set_multicast_list = netxen_set_multicast_list, | |
498 | .ndo_set_mac_address = netxen_nic_set_mac, | |
499 | .ndo_change_mtu = netxen_nic_change_mtu, | |
500 | .ndo_tx_timeout = netxen_tx_timeout, | |
501 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
502 | .ndo_poll_controller = netxen_nic_poll_controller, | |
503 | #endif | |
504 | }; | |
505 | ||
97daee83 DP |
506 | static void |
507 | netxen_setup_intr(struct netxen_adapter *adapter) | |
508 | { | |
509 | struct netxen_legacy_intr_set *legacy_intrp; | |
510 | struct pci_dev *pdev = adapter->pdev; | |
be339aee DP |
511 | int err, num_msix; |
512 | ||
513 | if (adapter->rss_supported) { | |
514 | num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? | |
515 | MSIX_ENTRIES_PER_ADAPTER : 2; | |
516 | } else | |
517 | num_msix = 1; | |
518 | ||
519 | adapter->max_sds_rings = 1; | |
97daee83 DP |
520 | |
521 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); | |
97daee83 DP |
522 | |
523 | if (adapter->ahw.revision_id >= NX_P3_B0) | |
524 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; | |
525 | else | |
526 | legacy_intrp = &legacy_intr[0]; | |
527 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
528 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
529 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
530 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
531 | ||
532 | netxen_set_msix_bit(pdev, 0); | |
533 | ||
534 | if (adapter->msix_supported) { | |
535 | ||
be339aee DP |
536 | netxen_init_msix_entries(adapter, num_msix); |
537 | err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); | |
538 | if (err == 0) { | |
539 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
540 | netxen_set_msix_bit(pdev, 1); | |
97daee83 | 541 | |
be339aee DP |
542 | if (adapter->rss_supported) |
543 | adapter->max_sds_rings = num_msix; | |
97daee83 | 544 | |
be339aee DP |
545 | dev_info(&pdev->dev, "using msi-x interrupts\n"); |
546 | return; | |
547 | } | |
548 | ||
549 | if (err > 0) | |
550 | pci_disable_msix(pdev); | |
551 | ||
552 | /* fall through for msi */ | |
97daee83 | 553 | } |
be339aee DP |
554 | |
555 | if (use_msi && !pci_enable_msi(pdev)) { | |
556 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
557 | adapter->msi_tgt_status = | |
558 | msi_tgt_status[adapter->ahw.pci_func]; | |
559 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
f67f3408 | 560 | adapter->msix_entries[0].vector = pdev->irq; |
be339aee DP |
561 | return; |
562 | } | |
563 | ||
564 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
565 | adapter->msix_entries[0].vector = pdev->irq; | |
97daee83 DP |
566 | } |
567 | ||
568 | static void | |
569 | netxen_teardown_intr(struct netxen_adapter *adapter) | |
570 | { | |
571 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
572 | pci_disable_msix(adapter->pdev); | |
573 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
574 | pci_disable_msi(adapter->pdev); | |
575 | } | |
576 | ||
577 | static void | |
578 | netxen_cleanup_pci_map(struct netxen_adapter *adapter) | |
579 | { | |
580 | if (adapter->ahw.db_base != NULL) | |
581 | iounmap(adapter->ahw.db_base); | |
582 | if (adapter->ahw.pci_base0 != NULL) | |
583 | iounmap(adapter->ahw.pci_base0); | |
584 | if (adapter->ahw.pci_base1 != NULL) | |
585 | iounmap(adapter->ahw.pci_base1); | |
586 | if (adapter->ahw.pci_base2 != NULL) | |
587 | iounmap(adapter->ahw.pci_base2); | |
588 | } | |
589 | ||
590 | static int | |
591 | netxen_setup_pci_map(struct netxen_adapter *adapter) | |
592 | { | |
593 | void __iomem *mem_ptr0 = NULL; | |
594 | void __iomem *mem_ptr1 = NULL; | |
595 | void __iomem *mem_ptr2 = NULL; | |
596 | void __iomem *db_ptr = NULL; | |
597 | ||
97daee83 DP |
598 | unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0; |
599 | ||
600 | struct pci_dev *pdev = adapter->pdev; | |
601 | int pci_func = adapter->ahw.pci_func; | |
602 | ||
603 | int err = 0; | |
604 | ||
605 | /* | |
606 | * Set the CRB window to invalid. If any register in window 0 is | |
607 | * accessed it should set the window to 0 and then reset it to 1. | |
608 | */ | |
609 | adapter->curr_window = 255; | |
610 | adapter->ahw.qdr_sn_window = -1; | |
611 | adapter->ahw.ddr_mn_window = -1; | |
612 | ||
613 | /* remap phys address */ | |
614 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
615 | mem_len = pci_resource_len(pdev, 0); | |
616 | pci_len0 = 0; | |
617 | ||
618 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
619 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
620 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
621 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
97daee83 DP |
622 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; |
623 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
624 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
625 | ||
626 | /* 128 Meg of memory */ | |
627 | if (mem_len == NETXEN_PCI_128MB_SIZE) { | |
628 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
629 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
630 | SECOND_PAGE_GROUP_SIZE); | |
631 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
632 | THIRD_PAGE_GROUP_SIZE); | |
97daee83 DP |
633 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { |
634 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
635 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
636 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
97daee83 DP |
637 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
638 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
639 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
640 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
641 | adapter->pci_write_immediate = | |
642 | netxen_nic_pci_write_immediate_2M; | |
97daee83 DP |
643 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; |
644 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
645 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
646 | ||
647 | mem_ptr0 = pci_ioremap_bar(pdev, 0); | |
648 | if (mem_ptr0 == NULL) { | |
649 | dev_err(&pdev->dev, "failed to map PCI bar 0\n"); | |
650 | return -EIO; | |
651 | } | |
652 | pci_len0 = mem_len; | |
97daee83 DP |
653 | |
654 | adapter->ahw.ddr_mn_window = 0; | |
655 | adapter->ahw.qdr_sn_window = 0; | |
656 | ||
657 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
658 | (pci_func * 0x20); | |
659 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
660 | if (pci_func < 4) | |
661 | adapter->ahw.ms_win_crb += (pci_func * 0x20); | |
662 | else | |
663 | adapter->ahw.ms_win_crb += | |
664 | 0xA0 + ((pci_func - 4) * 0x10); | |
665 | } else { | |
666 | return -EIO; | |
667 | } | |
668 | ||
669 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); | |
670 | ||
671 | adapter->ahw.pci_base0 = mem_ptr0; | |
672 | adapter->ahw.pci_len0 = pci_len0; | |
97daee83 DP |
673 | adapter->ahw.pci_base1 = mem_ptr1; |
674 | adapter->ahw.pci_base2 = mem_ptr2; | |
675 | ||
676 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
677 | goto skip_doorbell; | |
678 | ||
679 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ | |
680 | db_len = pci_resource_len(pdev, 4); | |
681 | ||
682 | if (db_len == 0) { | |
683 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
684 | netxen_nic_driver_name); | |
685 | err = -EIO; | |
686 | goto err_out; | |
687 | } | |
688 | ||
689 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
690 | if (!db_ptr) { | |
691 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", | |
692 | netxen_nic_driver_name); | |
693 | err = -EIO; | |
694 | goto err_out; | |
695 | } | |
696 | ||
697 | skip_doorbell: | |
698 | adapter->ahw.db_base = db_ptr; | |
699 | adapter->ahw.db_len = db_len; | |
700 | return 0; | |
701 | ||
702 | err_out: | |
703 | netxen_cleanup_pci_map(adapter); | |
704 | return err; | |
705 | } | |
706 | ||
ba599d4f | 707 | static int |
f7185c71 | 708 | netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) |
ba599d4f DP |
709 | { |
710 | int val, err, first_boot; | |
711 | struct pci_dev *pdev = adapter->pdev; | |
712 | ||
0b72e659 | 713 | int first_driver = 0; |
f7185c71 DP |
714 | |
715 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
716 | first_driver = (adapter->portnum == 0); | |
717 | else | |
718 | first_driver = (adapter->ahw.pci_func == 0); | |
0b72e659 DP |
719 | |
720 | if (!first_driver) | |
96f2ebd2 | 721 | goto wait_init; |
0b72e659 | 722 | |
f98a9f69 | 723 | first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
ba599d4f DP |
724 | |
725 | err = netxen_check_hw_init(adapter, first_boot); | |
726 | if (err) { | |
727 | dev_err(&pdev->dev, "error in init HW init sequence\n"); | |
728 | return err; | |
729 | } | |
730 | ||
f7185c71 DP |
731 | if (request_fw) |
732 | netxen_request_firmware(adapter); | |
733 | ||
67c38fc6 DP |
734 | err = netxen_need_fw_reset(adapter); |
735 | if (err <= 0) | |
736 | return err; | |
737 | ||
ba599d4f | 738 | if (first_boot != 0x55555555) { |
f98a9f69 | 739 | NXWR32(adapter, CRB_CMDPEG_STATE, 0); |
ba599d4f DP |
740 | netxen_pinit_from_rom(adapter, 0); |
741 | msleep(1); | |
742 | } | |
567c6c4e | 743 | |
f98a9f69 | 744 | NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); |
567c6c4e DP |
745 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
746 | netxen_set_port_mode(adapter); | |
747 | ||
ba599d4f DP |
748 | netxen_load_firmware(adapter); |
749 | ||
750 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
751 | ||
752 | /* Initialize multicast addr pool owners */ | |
753 | val = 0x7654; | |
1e2d0059 | 754 | if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
ba599d4f | 755 | val |= 0x0f000000; |
f98a9f69 | 756 | NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); |
ba599d4f DP |
757 | |
758 | } | |
759 | ||
760 | err = netxen_initialize_adapter_offload(adapter); | |
761 | if (err) | |
762 | return err; | |
763 | ||
764 | /* | |
765 | * Tell the hardware our version number. | |
766 | */ | |
767 | val = (_NETXEN_NIC_LINUX_MAJOR << 16) | |
768 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) | |
769 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
f98a9f69 | 770 | NXWR32(adapter, CRB_DRIVER_VERSION, val); |
ba599d4f | 771 | |
96f2ebd2 | 772 | wait_init: |
ba599d4f DP |
773 | /* Handshake with the card before we register the devices. */ |
774 | err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
775 | if (err) { | |
776 | netxen_free_adapter_offload(adapter); | |
777 | return err; | |
778 | } | |
779 | ||
780 | return 0; | |
781 | } | |
782 | ||
9f5bc7f1 DP |
783 | static int |
784 | netxen_nic_request_irq(struct netxen_adapter *adapter) | |
785 | { | |
786 | irq_handler_t handler; | |
d8b100c5 DP |
787 | struct nx_host_sds_ring *sds_ring; |
788 | int err, ring; | |
789 | ||
9f5bc7f1 DP |
790 | unsigned long flags = IRQF_SAMPLE_RANDOM; |
791 | struct net_device *netdev = adapter->netdev; | |
d8b100c5 | 792 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
9f5bc7f1 | 793 | |
9f5bc7f1 DP |
794 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
795 | handler = netxen_msix_intr; | |
796 | else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
797 | handler = netxen_msi_intr; | |
798 | else { | |
799 | flags |= IRQF_SHARED; | |
800 | handler = netxen_intr; | |
801 | } | |
802 | adapter->irq = netdev->irq; | |
803 | ||
d8b100c5 DP |
804 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
805 | sds_ring = &recv_ctx->sds_rings[ring]; | |
be339aee | 806 | sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); |
d8b100c5 DP |
807 | err = request_irq(sds_ring->irq, handler, |
808 | flags, sds_ring->name, sds_ring); | |
809 | if (err) | |
810 | return err; | |
811 | } | |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | static void | |
817 | netxen_nic_free_irq(struct netxen_adapter *adapter) | |
818 | { | |
819 | int ring; | |
820 | struct nx_host_sds_ring *sds_ring; | |
821 | ||
822 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
823 | ||
824 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
825 | sds_ring = &recv_ctx->sds_rings[ring]; | |
826 | free_irq(sds_ring->irq, sds_ring); | |
827 | } | |
9f5bc7f1 DP |
828 | } |
829 | ||
830 | static int | |
831 | netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) | |
832 | { | |
833 | int err; | |
834 | ||
835 | err = adapter->init_port(adapter, adapter->physical_port); | |
836 | if (err) { | |
837 | printk(KERN_ERR "%s: Failed to initialize port %d\n", | |
838 | netxen_nic_driver_name, adapter->portnum); | |
839 | return err; | |
840 | } | |
3d0a3cc9 DP |
841 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
842 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
9f5bc7f1 | 843 | |
3d0a3cc9 DP |
844 | adapter->set_multi(netdev); |
845 | adapter->set_mtu(adapter, netdev->mtu); | |
9f5bc7f1 DP |
846 | |
847 | adapter->ahw.linkup = 0; | |
9f5bc7f1 | 848 | |
d8b100c5 DP |
849 | if (adapter->max_sds_rings > 1) |
850 | netxen_config_rss(adapter, 1); | |
9f5bc7f1 | 851 | |
b2af9cb0 DP |
852 | netxen_napi_enable(adapter); |
853 | ||
5103c9f7 | 854 | if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) |
3bf26ce3 | 855 | netxen_linkevent_request(adapter, 1); |
3d0a3cc9 DP |
856 | else |
857 | netxen_nic_set_link_parameters(adapter); | |
858 | ||
859 | mod_timer(&adapter->watchdog_timer, jiffies); | |
3bf26ce3 | 860 | |
9f5bc7f1 DP |
861 | return 0; |
862 | } | |
863 | ||
864 | static void | |
865 | netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) | |
866 | { | |
b2af9cb0 | 867 | spin_lock(&adapter->tx_clean_lock); |
9f5bc7f1 | 868 | netif_carrier_off(netdev); |
b2af9cb0 | 869 | netif_tx_disable(netdev); |
9f5bc7f1 DP |
870 | |
871 | if (adapter->stop_port) | |
872 | adapter->stop_port(adapter); | |
873 | ||
5cf4d323 DP |
874 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
875 | netxen_p3_free_mac_list(adapter); | |
876 | ||
be339aee DP |
877 | netxen_napi_disable(adapter); |
878 | ||
9f5bc7f1 | 879 | netxen_release_tx_buffers(adapter); |
b2af9cb0 | 880 | spin_unlock(&adapter->tx_clean_lock); |
9f5bc7f1 | 881 | |
9f5bc7f1 | 882 | del_timer_sync(&adapter->watchdog_timer); |
b2af9cb0 | 883 | FLUSH_SCHEDULED_WORK(); |
9f5bc7f1 DP |
884 | } |
885 | ||
886 | ||
887 | static int | |
888 | netxen_nic_attach(struct netxen_adapter *adapter) | |
889 | { | |
890 | struct net_device *netdev = adapter->netdev; | |
891 | struct pci_dev *pdev = adapter->pdev; | |
becf46a0 | 892 | int err, ring; |
d8b100c5 | 893 | struct nx_host_rds_ring *rds_ring; |
d877f1e3 | 894 | struct nx_host_tx_ring *tx_ring; |
9f5bc7f1 DP |
895 | |
896 | err = netxen_init_firmware(adapter); | |
897 | if (err != 0) { | |
898 | printk(KERN_ERR "Failed to init firmware\n"); | |
899 | return -EIO; | |
900 | } | |
901 | ||
902 | if (adapter->fw_major < 4) | |
903 | adapter->max_rds_rings = 3; | |
904 | else | |
905 | adapter->max_rds_rings = 2; | |
906 | ||
907 | err = netxen_alloc_sw_resources(adapter); | |
908 | if (err) { | |
909 | printk(KERN_ERR "%s: Error in setting sw resources\n", | |
910 | netdev->name); | |
911 | return err; | |
912 | } | |
913 | ||
914 | netxen_nic_clear_stats(adapter); | |
915 | ||
916 | err = netxen_alloc_hw_resources(adapter); | |
917 | if (err) { | |
918 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
919 | netdev->name); | |
920 | goto err_out_free_sw; | |
921 | } | |
922 | ||
923 | if (adapter->fw_major < 4) { | |
4ea528a1 | 924 | tx_ring = adapter->tx_ring; |
d877f1e3 DP |
925 | tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum]; |
926 | tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum]; | |
9f5bc7f1 | 927 | |
cb2107be DP |
928 | tx_ring->producer = 0; |
929 | tx_ring->sw_consumer = 0; | |
930 | ||
931 | netxen_nic_update_cmd_producer(adapter, tx_ring); | |
932 | netxen_nic_update_cmd_consumer(adapter, tx_ring); | |
9f5bc7f1 DP |
933 | } |
934 | ||
d8b100c5 DP |
935 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
936 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; | |
937 | netxen_post_rx_buffers(adapter, ring, rds_ring); | |
938 | } | |
9f5bc7f1 DP |
939 | |
940 | err = netxen_nic_request_irq(adapter); | |
941 | if (err) { | |
942 | dev_err(&pdev->dev, "%s: failed to setup interrupt\n", | |
943 | netdev->name); | |
944 | goto err_out_free_rxbuf; | |
945 | } | |
946 | ||
947 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
948 | return 0; | |
949 | ||
950 | err_out_free_rxbuf: | |
951 | netxen_release_rx_buffers(adapter); | |
952 | netxen_free_hw_resources(adapter); | |
953 | err_out_free_sw: | |
954 | netxen_free_sw_resources(adapter); | |
955 | return err; | |
956 | } | |
957 | ||
958 | static void | |
959 | netxen_nic_detach(struct netxen_adapter *adapter) | |
960 | { | |
9f5bc7f1 | 961 | netxen_free_hw_resources(adapter); |
cf981ffb | 962 | netxen_release_rx_buffers(adapter); |
be339aee | 963 | netxen_nic_free_irq(adapter); |
9f5bc7f1 DP |
964 | netxen_free_sw_resources(adapter); |
965 | ||
966 | adapter->is_up = 0; | |
967 | } | |
968 | ||
3d396eb1 AK |
969 | static int __devinit |
970 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
971 | { | |
972 | struct net_device *netdev = NULL; | |
973 | struct netxen_adapter *adapter = NULL; | |
2956640d | 974 | int i = 0, err; |
3176ff3e | 975 | int pci_func_id = PCI_FUNC(pdev->devfn); |
2956640d | 976 | uint8_t revision_id; |
3d396eb1 | 977 | |
3176ff3e | 978 | if (pdev->class != 0x020000) { |
dcd56fdb | 979 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 980 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
981 | return -ENODEV; |
982 | } | |
2956640d | 983 | |
11d89d63 DP |
984 | if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) { |
985 | printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x" | |
986 | "will not be enabled.\n", | |
987 | NX_P3_A0, NX_P3_B1); | |
988 | return -ENODEV; | |
989 | } | |
990 | ||
3d396eb1 AK |
991 | if ((err = pci_enable_device(pdev))) |
992 | return err; | |
2956640d | 993 | |
3d396eb1 AK |
994 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
995 | err = -ENODEV; | |
996 | goto err_out_disable_pdev; | |
997 | } | |
998 | ||
999 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
1000 | goto err_out_disable_pdev; | |
1001 | ||
1002 | pci_set_master(pdev); | |
3176ff3e MT |
1003 | |
1004 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
1005 | if(!netdev) { | |
1006 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
1007 | "device block.Check system memory resource" | |
1008 | " usage.\n", netxen_nic_driver_name); | |
1009 | goto err_out_free_res; | |
1010 | } | |
1011 | ||
3176ff3e MT |
1012 | SET_NETDEV_DEV(netdev, &pdev->dev); |
1013 | ||
4cf1653a | 1014 | adapter = netdev_priv(netdev); |
2956640d DP |
1015 | adapter->netdev = netdev; |
1016 | adapter->pdev = pdev; | |
13ba9c77 | 1017 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
1018 | |
1019 | revision_id = pdev->revision; | |
1020 | adapter->ahw.revision_id = revision_id; | |
1021 | ||
50c643e7 | 1022 | err = nx_set_dma_mask(adapter); |
2956640d DP |
1023 | if (err) |
1024 | goto err_out_free_netdev; | |
1025 | ||
3ce06a32 | 1026 | rwlock_init(&adapter->adapter_lock); |
d8b100c5 | 1027 | spin_lock_init(&adapter->tx_clean_lock); |
5cf4d323 | 1028 | INIT_LIST_HEAD(&adapter->mac_list); |
3ce06a32 | 1029 | |
97daee83 DP |
1030 | err = netxen_setup_pci_map(adapter); |
1031 | if (err) | |
6c80b18d | 1032 | goto err_out_free_netdev; |
3d396eb1 | 1033 | |
2d1a3bbd | 1034 | /* This will be reset for mezz cards */ |
3176ff3e | 1035 | adapter->portnum = pci_func_id; |
200eef20 | 1036 | adapter->rx_csum = 1; |
623621b0 | 1037 | adapter->mc_enabled = 0; |
83821a07 | 1038 | if (NX_IS_REVISION_P3(revision_id)) |
2956640d | 1039 | adapter->max_mc_count = 38; |
83821a07 | 1040 | else |
2956640d | 1041 | adapter->max_mc_count = 16; |
3176ff3e | 1042 | |
1abd266f | 1043 | netdev->netdev_ops = &netxen_netdev_ops; |
05aaa02d | 1044 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
1045 | |
1046 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
1047 | ||
1048 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
1abd266f | 1049 | |
cdff1036 | 1050 | netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); |
a92e9e65 | 1051 | netdev->features |= (NETIF_F_GRO); |
cdff1036 DP |
1052 | netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); |
1053 | ||
cd1f8160 | 1054 | if (NX_IS_REVISION_P3(revision_id)) { |
cdff1036 DP |
1055 | netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); |
1056 | netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
cd1f8160 | 1057 | } |
3176ff3e | 1058 | |
cdff1036 | 1059 | if (adapter->pci_using_dac) { |
3176ff3e | 1060 | netdev->features |= NETIF_F_HIGHDMA; |
cdff1036 DP |
1061 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
1062 | } | |
3176ff3e | 1063 | |
dcd56fdb DP |
1064 | if (netxen_nic_get_board_info(adapter) != 0) { |
1065 | printk("%s: Error getting board config info.\n", | |
2956640d | 1066 | netxen_nic_driver_name); |
dcd56fdb DP |
1067 | err = -EIO; |
1068 | goto err_out_iounmap; | |
1069 | } | |
6c80b18d | 1070 | |
6c80b18d MT |
1071 | netxen_initialize_adapter_ops(adapter); |
1072 | ||
13ba9c77 | 1073 | /* Mezz cards have PCI function 0,2,3 enabled */ |
1e2d0059 | 1074 | switch (adapter->ahw.board_type) { |
dc515f2e DP |
1075 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: |
1076 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
1077 | if (pci_func_id >= 2) | |
13ba9c77 | 1078 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
1079 | break; |
1080 | default: | |
1081 | break; | |
1082 | } | |
13ba9c77 | 1083 | |
f7185c71 | 1084 | err = netxen_start_firmware(adapter, 1); |
0b72e659 DP |
1085 | if (err) |
1086 | goto err_out_iounmap; | |
2956640d | 1087 | |
1f434f63 DP |
1088 | nx_update_dma_mask(adapter); |
1089 | ||
1e2d0059 | 1090 | netxen_nic_get_firmware_info(adapter); |
d9e651bc | 1091 | |
3d396eb1 | 1092 | /* |
6c80b18d | 1093 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 1094 | */ |
dcd56fdb | 1095 | adapter->physical_port = adapter->portnum; |
044fad0d | 1096 | if (adapter->fw_major < 4) { |
f98a9f69 | 1097 | i = NXRD32(adapter, CRB_V2P(adapter->portnum)); |
044fad0d DP |
1098 | if (i != 0x55555555) |
1099 | adapter->physical_port = i; | |
1100 | } | |
6c80b18d | 1101 | |
438627c7 | 1102 | netxen_check_options(adapter); |
2956640d | 1103 | |
97daee83 | 1104 | netxen_setup_intr(adapter); |
2956640d | 1105 | |
d8b100c5 DP |
1106 | netdev->irq = adapter->msix_entries[0].vector; |
1107 | ||
71dcddbd DP |
1108 | if (netxen_napi_add(adapter, netdev)) |
1109 | goto err_out_disable_msi; | |
2956640d | 1110 | |
2956640d | 1111 | init_timer(&adapter->watchdog_timer); |
2956640d DP |
1112 | adapter->watchdog_timer.function = &netxen_watchdog; |
1113 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
1114 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
1115 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
1116 | ||
9dc28efe DP |
1117 | err = netxen_read_mac_addr(adapter); |
1118 | if (err) | |
1119 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
2956640d | 1120 | |
3176ff3e MT |
1121 | netif_carrier_off(netdev); |
1122 | netif_stop_queue(netdev); | |
1123 | ||
6c80b18d MT |
1124 | if ((err = register_netdev(netdev))) { |
1125 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
1126 | " aborting\n", netxen_nic_driver_name, | |
1127 | adapter->portnum); | |
1128 | err = -EIO; | |
2956640d | 1129 | goto err_out_disable_msi; |
6c80b18d MT |
1130 | } |
1131 | ||
1132 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 1133 | |
1e2d0059 | 1134 | switch (adapter->ahw.port_type) { |
2956640d DP |
1135 | case NETXEN_NIC_GBE: |
1136 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
1137 | adapter->netdev->name); | |
1138 | break; | |
1139 | case NETXEN_NIC_XGBE: | |
1140 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
1141 | adapter->netdev->name); | |
1142 | break; | |
3d396eb1 | 1143 | } |
3d396eb1 | 1144 | |
2956640d DP |
1145 | return 0; |
1146 | ||
1147 | err_out_disable_msi: | |
97daee83 | 1148 | netxen_teardown_intr(adapter); |
6c80b18d | 1149 | |
0b72e659 | 1150 | netxen_free_adapter_offload(adapter); |
3d396eb1 | 1151 | |
2956640d | 1152 | err_out_iounmap: |
97daee83 | 1153 | netxen_cleanup_pci_map(adapter); |
cb8011ad | 1154 | |
6c80b18d MT |
1155 | err_out_free_netdev: |
1156 | free_netdev(netdev); | |
1157 | ||
1158 | err_out_free_res: | |
3d396eb1 | 1159 | pci_release_regions(pdev); |
6c80b18d MT |
1160 | |
1161 | err_out_disable_pdev: | |
2956640d | 1162 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
1163 | pci_disable_device(pdev); |
1164 | return err; | |
1165 | } | |
1166 | ||
1167 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
1168 | { | |
1169 | struct netxen_adapter *adapter; | |
3176ff3e | 1170 | struct net_device *netdev; |
3d396eb1 | 1171 | |
6c80b18d | 1172 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
1173 | if (adapter == NULL) |
1174 | return; | |
1175 | ||
6c80b18d MT |
1176 | netdev = adapter->netdev; |
1177 | ||
96acb6eb DP |
1178 | unregister_netdev(netdev); |
1179 | ||
96acb6eb | 1180 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
9f5bc7f1 | 1181 | netxen_nic_detach(adapter); |
96acb6eb | 1182 | } |
3d396eb1 | 1183 | |
439b454e DP |
1184 | if (adapter->portnum == 0) |
1185 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 1186 | |
97daee83 | 1187 | netxen_teardown_intr(adapter); |
71dcddbd | 1188 | netxen_free_sds_rings(&adapter->recv_ctx); |
3052246c | 1189 | |
97daee83 | 1190 | netxen_cleanup_pci_map(adapter); |
595e3fb8 | 1191 | |
f7185c71 DP |
1192 | netxen_release_firmware(adapter); |
1193 | ||
595e3fb8 | 1194 | pci_release_regions(pdev); |
3052246c | 1195 | pci_disable_device(pdev); |
595e3fb8 MT |
1196 | pci_set_drvdata(pdev, NULL); |
1197 | ||
6c80b18d | 1198 | free_netdev(netdev); |
3d396eb1 AK |
1199 | } |
1200 | ||
01542cd1 | 1201 | #ifdef CONFIG_PM |
0b72e659 DP |
1202 | static int |
1203 | netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) | |
1204 | { | |
1205 | ||
1206 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); | |
1207 | struct net_device *netdev = adapter->netdev; | |
1208 | ||
1209 | netif_device_detach(netdev); | |
1210 | ||
1211 | if (netif_running(netdev)) | |
1212 | netxen_nic_down(adapter, netdev); | |
1213 | ||
1214 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) | |
1215 | netxen_nic_detach(adapter); | |
1216 | ||
1217 | pci_save_state(pdev); | |
1218 | ||
1219 | if (netxen_nic_wol_supported(adapter)) { | |
1220 | pci_enable_wake(pdev, PCI_D3cold, 1); | |
1221 | pci_enable_wake(pdev, PCI_D3hot, 1); | |
1222 | } | |
1223 | ||
1224 | pci_disable_device(pdev); | |
1225 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1226 | ||
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | static int | |
1231 | netxen_nic_resume(struct pci_dev *pdev) | |
1232 | { | |
1233 | struct netxen_adapter *adapter = pci_get_drvdata(pdev); | |
1234 | struct net_device *netdev = adapter->netdev; | |
1235 | int err; | |
1236 | ||
1237 | pci_set_power_state(pdev, PCI_D0); | |
1238 | pci_restore_state(pdev); | |
1239 | ||
1240 | err = pci_enable_device(pdev); | |
1241 | if (err) | |
1242 | return err; | |
1243 | ||
1244 | adapter->curr_window = 255; | |
1245 | ||
f7185c71 | 1246 | err = netxen_start_firmware(adapter, 0); |
0b72e659 DP |
1247 | if (err) { |
1248 | dev_err(&pdev->dev, "failed to start firmware\n"); | |
1249 | return err; | |
1250 | } | |
1251 | ||
1252 | if (netif_running(netdev)) { | |
1253 | err = netxen_nic_attach(adapter); | |
1254 | if (err) | |
1255 | return err; | |
1256 | ||
1257 | err = netxen_nic_up(adapter, netdev); | |
1258 | if (err) | |
1259 | return err; | |
1260 | ||
1261 | netif_device_attach(netdev); | |
1262 | } | |
1263 | ||
1264 | return 0; | |
1265 | } | |
01542cd1 | 1266 | #endif |
0b72e659 | 1267 | |
3d396eb1 AK |
1268 | static int netxen_nic_open(struct net_device *netdev) |
1269 | { | |
4cf1653a | 1270 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1271 | int err = 0; |
3d396eb1 | 1272 | |
dcd56fdb DP |
1273 | if (adapter->driver_mismatch) |
1274 | return -EIO; | |
1275 | ||
3d396eb1 | 1276 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
9f5bc7f1 DP |
1277 | err = netxen_nic_attach(adapter); |
1278 | if (err) | |
3d396eb1 | 1279 | return err; |
ed25ffa1 | 1280 | } |
2956640d | 1281 | |
9f5bc7f1 DP |
1282 | err = netxen_nic_up(adapter, netdev); |
1283 | if (err) | |
1284 | goto err_out; | |
05aaa02d | 1285 | |
dcd56fdb | 1286 | netif_start_queue(netdev); |
3d396eb1 AK |
1287 | |
1288 | return 0; | |
2956640d | 1289 | |
9f5bc7f1 DP |
1290 | err_out: |
1291 | netxen_nic_detach(adapter); | |
2956640d | 1292 | return err; |
3d396eb1 AK |
1293 | } |
1294 | ||
1295 | /* | |
1296 | * netxen_nic_close - Disables a network interface entry point | |
1297 | */ | |
1298 | static int netxen_nic_close(struct net_device *netdev) | |
1299 | { | |
3176ff3e | 1300 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1301 | |
9f5bc7f1 | 1302 | netxen_nic_down(adapter, netdev); |
3d396eb1 AK |
1303 | return 0; |
1304 | } | |
1305 | ||
391587c3 | 1306 | static bool netxen_tso_check(struct net_device *netdev, |
cd1f8160 DP |
1307 | struct cmd_desc_type0 *desc, struct sk_buff *skb) |
1308 | { | |
391587c3 DP |
1309 | bool tso = false; |
1310 | u8 opcode = TX_ETHER_PKT; | |
cdff1036 DP |
1311 | __be16 protocol = skb->protocol; |
1312 | u16 flags = 0; | |
1313 | ||
09640e63 | 1314 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { |
cdff1036 DP |
1315 | struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data; |
1316 | protocol = vh->h_vlan_encapsulated_proto; | |
1317 | flags = FLAGS_VLAN_TAGGED; | |
1318 | } | |
cd1f8160 | 1319 | |
391587c3 DP |
1320 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1321 | skb_shinfo(skb)->gso_size > 0) { | |
1322 | ||
1323 | desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1324 | desc->total_hdr_length = | |
1325 | skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1326 | ||
09640e63 | 1327 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? |
391587c3 DP |
1328 | TX_TCP_LSO6 : TX_TCP_LSO; |
1329 | tso = true; | |
cd1f8160 DP |
1330 | |
1331 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
391587c3 DP |
1332 | u8 l4proto; |
1333 | ||
09640e63 | 1334 | if (protocol == cpu_to_be16(ETH_P_IP)) { |
391587c3 DP |
1335 | l4proto = ip_hdr(skb)->protocol; |
1336 | ||
1337 | if (l4proto == IPPROTO_TCP) | |
1338 | opcode = TX_TCP_PKT; | |
1339 | else if(l4proto == IPPROTO_UDP) | |
1340 | opcode = TX_UDP_PKT; | |
09640e63 | 1341 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { |
391587c3 DP |
1342 | l4proto = ipv6_hdr(skb)->nexthdr; |
1343 | ||
1344 | if (l4proto == IPPROTO_TCP) | |
1345 | opcode = TX_TCPV6_PKT; | |
1346 | else if(l4proto == IPPROTO_UDP) | |
1347 | opcode = TX_UDPV6_PKT; | |
1348 | } | |
cd1f8160 DP |
1349 | } |
1350 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1351 | desc->ip_hdr_offset = skb_network_offset(skb); | |
cdff1036 | 1352 | netxen_set_tx_flags_opcode(desc, flags, opcode); |
391587c3 | 1353 | return tso; |
cd1f8160 DP |
1354 | } |
1355 | ||
6f703406 DP |
1356 | static void |
1357 | netxen_clean_tx_dma_mapping(struct pci_dev *pdev, | |
1358 | struct netxen_cmd_buffer *pbuf, int last) | |
1359 | { | |
1360 | int k; | |
1361 | struct netxen_skb_frag *buffrag; | |
1362 | ||
1363 | buffrag = &pbuf->frag_array[0]; | |
1364 | pci_unmap_single(pdev, buffrag->dma, | |
1365 | buffrag->length, PCI_DMA_TODEVICE); | |
1366 | ||
1367 | for (k = 1; k < last; k++) { | |
1368 | buffrag = &pbuf->frag_array[k]; | |
1369 | pci_unmap_page(pdev, buffrag->dma, | |
1370 | buffrag->length, PCI_DMA_TODEVICE); | |
1371 | } | |
1372 | } | |
1373 | ||
d32cc3d2 DP |
1374 | static inline void |
1375 | netxen_clear_cmddesc(u64 *desc) | |
1376 | { | |
1377 | int i; | |
1378 | for (i = 0; i < 8; i++) | |
1379 | desc[i] = 0ULL; | |
1380 | } | |
1381 | ||
1382 | static int | |
1383 | netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
3d396eb1 | 1384 | { |
3176ff3e | 1385 | struct netxen_adapter *adapter = netdev_priv(netdev); |
4ea528a1 | 1386 | struct nx_host_tx_ring *tx_ring = adapter->tx_ring; |
3d396eb1 | 1387 | unsigned int first_seg_len = skb->len - skb->data_len; |
391587c3 | 1388 | struct netxen_cmd_buffer *pbuf; |
3d396eb1 | 1389 | struct netxen_skb_frag *buffrag; |
391587c3 | 1390 | struct cmd_desc_type0 *hwdesc; |
6f703406 DP |
1391 | struct pci_dev *pdev = adapter->pdev; |
1392 | dma_addr_t temp_dma; | |
391587c3 | 1393 | int i, k; |
3d396eb1 | 1394 | |
cb2107be | 1395 | u32 producer; |
391587c3 | 1396 | int frag_count, no_of_desc; |
d877f1e3 | 1397 | u32 num_txd = tx_ring->num_desc; |
391587c3 | 1398 | bool is_tso = false; |
3d396eb1 | 1399 | |
3d396eb1 AK |
1400 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1401 | ||
d877f1e3 | 1402 | /* 4 fragments per cmd des */ |
3d396eb1 | 1403 | no_of_desc = (frag_count + 3) >> 2; |
53a01e00 | 1404 | |
cb2107be | 1405 | if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) { |
ba53e6b4 | 1406 | netif_stop_queue(netdev); |
ba53e6b4 | 1407 | return NETDEV_TX_BUSY; |
53a01e00 | 1408 | } |
3d396eb1 | 1409 | |
cb2107be DP |
1410 | producer = tx_ring->producer; |
1411 | ||
d877f1e3 | 1412 | hwdesc = &tx_ring->desc_head[producer]; |
d32cc3d2 | 1413 | netxen_clear_cmddesc((u64 *)hwdesc); |
d877f1e3 | 1414 | pbuf = &tx_ring->cmd_buf_arr[producer]; |
391587c3 DP |
1415 | |
1416 | is_tso = netxen_tso_check(netdev, hwdesc, skb); | |
1417 | ||
3d396eb1 | 1418 | pbuf->skb = skb; |
3d396eb1 | 1419 | pbuf->frag_count = frag_count; |
3d396eb1 | 1420 | buffrag = &pbuf->frag_array[0]; |
6f703406 | 1421 | temp_dma = pci_map_single(pdev, skb->data, first_seg_len, |
3d396eb1 | 1422 | PCI_DMA_TODEVICE); |
6f703406 DP |
1423 | if (pci_dma_mapping_error(pdev, temp_dma)) |
1424 | goto drop_packet; | |
1425 | ||
1426 | buffrag->dma = temp_dma; | |
3d396eb1 | 1427 | buffrag->length = first_seg_len; |
391587c3 DP |
1428 | netxen_set_tx_frags_len(hwdesc, frag_count, skb->len); |
1429 | netxen_set_tx_port(hwdesc, adapter->portnum); | |
3d396eb1 | 1430 | |
d32cc3d2 | 1431 | hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len); |
3d396eb1 AK |
1432 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); |
1433 | ||
1434 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1435 | struct skb_frag_struct *frag; | |
1436 | int len, temp_len; | |
1437 | unsigned long offset; | |
3d396eb1 AK |
1438 | |
1439 | /* move to next desc. if there is a need */ | |
1440 | if ((i & 0x3) == 0) { | |
1441 | k = 0; | |
ba53e6b4 | 1442 | producer = get_next_index(producer, num_txd); |
d877f1e3 | 1443 | hwdesc = &tx_ring->desc_head[producer]; |
d32cc3d2 | 1444 | netxen_clear_cmddesc((u64 *)hwdesc); |
d877f1e3 | 1445 | pbuf = &tx_ring->cmd_buf_arr[producer]; |
53a01e00 | 1446 | pbuf->skb = NULL; |
3d396eb1 AK |
1447 | } |
1448 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1449 | len = frag->size; | |
1450 | offset = frag->page_offset; | |
1451 | ||
1452 | temp_len = len; | |
6f703406 | 1453 | temp_dma = pci_map_page(pdev, frag->page, offset, |
3d396eb1 | 1454 | len, PCI_DMA_TODEVICE); |
6f703406 DP |
1455 | if (pci_dma_mapping_error(pdev, temp_dma)) { |
1456 | netxen_clean_tx_dma_mapping(pdev, pbuf, i); | |
1457 | goto drop_packet; | |
1458 | } | |
3d396eb1 AK |
1459 | |
1460 | buffrag++; | |
1461 | buffrag->dma = temp_dma; | |
1462 | buffrag->length = temp_len; | |
1463 | ||
d32cc3d2 | 1464 | hwdesc->buffer_length[k] = cpu_to_le16(temp_len); |
3d396eb1 AK |
1465 | switch (k) { |
1466 | case 0: | |
3d396eb1 AK |
1467 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); |
1468 | break; | |
1469 | case 1: | |
3d396eb1 AK |
1470 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); |
1471 | break; | |
1472 | case 2: | |
3d396eb1 AK |
1473 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); |
1474 | break; | |
1475 | case 3: | |
3d396eb1 AK |
1476 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1477 | break; | |
1478 | } | |
1479 | frag++; | |
1480 | } | |
ba53e6b4 | 1481 | producer = get_next_index(producer, num_txd); |
3d396eb1 | 1482 | |
3d396eb1 AK |
1483 | /* For LSO, we need to copy the MAC/IP/TCP headers into |
1484 | * the descriptor ring | |
1485 | */ | |
391587c3 | 1486 | if (is_tso) { |
3d396eb1 | 1487 | int hdr_len, first_hdr_len, more_hdr; |
391587c3 | 1488 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
ed25ffa1 AK |
1489 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1490 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1491 | more_hdr = 1; |
1492 | } else { | |
1493 | first_hdr_len = hdr_len; | |
1494 | more_hdr = 0; | |
1495 | } | |
1496 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
d877f1e3 DP |
1497 | hwdesc = &tx_ring->desc_head[producer]; |
1498 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
53a01e00 | 1499 | pbuf->skb = NULL; |
3d396eb1 AK |
1500 | |
1501 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1502 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1503 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1504 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1505 | |
1506 | if (more_hdr) { | |
d877f1e3 DP |
1507 | hwdesc = &tx_ring->desc_head[producer]; |
1508 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
53a01e00 | 1509 | pbuf->skb = NULL; |
3d396eb1 AK |
1510 | /* copy the next 64 bytes - should be enough except |
1511 | * for pathological case | |
1512 | */ | |
d626f62b ACM |
1513 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1514 | hwdesc, | |
1515 | (hdr_len - | |
1516 | first_hdr_len)); | |
ba53e6b4 | 1517 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1518 | } |
1519 | } | |
6c80b18d | 1520 | |
d877f1e3 | 1521 | tx_ring->producer = producer; |
5dc16268 | 1522 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1523 | |
cb2107be | 1524 | netxen_nic_update_cmd_producer(adapter, tx_ring); |
3d396eb1 | 1525 | |
ba53e6b4 | 1526 | adapter->stats.xmitcalled++; |
3d396eb1 | 1527 | |
3d396eb1 | 1528 | return NETDEV_TX_OK; |
6f703406 DP |
1529 | |
1530 | drop_packet: | |
1531 | adapter->stats.txdropped++; | |
1532 | dev_kfree_skb_any(skb); | |
1533 | return NETDEV_TX_OK; | |
3d396eb1 AK |
1534 | } |
1535 | ||
a97342f9 DP |
1536 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1537 | { | |
1538 | struct net_device *netdev = adapter->netdev; | |
1539 | uint32_t temp, temp_state, temp_val; | |
1540 | int rv = 0; | |
1541 | ||
f98a9f69 | 1542 | temp = NXRD32(adapter, CRB_TEMP_STATE); |
a97342f9 DP |
1543 | |
1544 | temp_state = nx_get_temp_state(temp); | |
1545 | temp_val = nx_get_temp_val(temp); | |
1546 | ||
1547 | if (temp_state == NX_TEMP_PANIC) { | |
1548 | printk(KERN_ALERT | |
1549 | "%s: Device temperature %d degrees C exceeds" | |
1550 | " maximum allowed. Hardware has been shut down.\n", | |
e4135c2d DP |
1551 | netdev->name, temp_val); |
1552 | ||
1553 | netif_device_detach(netdev); | |
1554 | netxen_nic_down(adapter, netdev); | |
1555 | netxen_nic_detach(adapter); | |
a97342f9 | 1556 | |
a97342f9 DP |
1557 | rv = 1; |
1558 | } else if (temp_state == NX_TEMP_WARN) { | |
1559 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1560 | printk(KERN_ALERT | |
1561 | "%s: Device temperature %d degrees C " | |
1562 | "exceeds operating range." | |
1563 | " Immediate action needed.\n", | |
e4135c2d | 1564 | netdev->name, temp_val); |
a97342f9 DP |
1565 | } |
1566 | } else { | |
1567 | if (adapter->temp == NX_TEMP_WARN) { | |
1568 | printk(KERN_INFO | |
1569 | "%s: Device temperature is now %d degrees C" | |
e4135c2d | 1570 | " in normal range.\n", netdev->name, |
a97342f9 DP |
1571 | temp_val); |
1572 | } | |
1573 | } | |
1574 | adapter->temp = temp_state; | |
1575 | return rv; | |
1576 | } | |
1577 | ||
3bf26ce3 | 1578 | void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) |
a97342f9 DP |
1579 | { |
1580 | struct net_device *netdev = adapter->netdev; | |
a97342f9 DP |
1581 | |
1582 | if (adapter->ahw.linkup && !linkup) { | |
1583 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1584 | netxen_nic_driver_name, netdev->name); | |
1585 | adapter->ahw.linkup = 0; | |
1586 | if (netif_running(netdev)) { | |
1587 | netif_carrier_off(netdev); | |
1588 | netif_stop_queue(netdev); | |
1589 | } | |
c7860a2a | 1590 | |
3bf26ce3 DP |
1591 | if (!adapter->has_link_events) |
1592 | netxen_nic_set_link_parameters(adapter); | |
1593 | ||
a97342f9 DP |
1594 | } else if (!adapter->ahw.linkup && linkup) { |
1595 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1596 | netxen_nic_driver_name, netdev->name); | |
1597 | adapter->ahw.linkup = 1; | |
1598 | if (netif_running(netdev)) { | |
1599 | netif_carrier_on(netdev); | |
1600 | netif_wake_queue(netdev); | |
1601 | } | |
c7860a2a | 1602 | |
3bf26ce3 DP |
1603 | if (!adapter->has_link_events) |
1604 | netxen_nic_set_link_parameters(adapter); | |
a97342f9 DP |
1605 | } |
1606 | } | |
1607 | ||
3bf26ce3 DP |
1608 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) |
1609 | { | |
1610 | u32 val, port, linkup; | |
1611 | ||
1612 | port = adapter->physical_port; | |
1613 | ||
1614 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
f98a9f69 | 1615 | val = NXRD32(adapter, CRB_XG_STATE_P3); |
3bf26ce3 DP |
1616 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); |
1617 | linkup = (val == XG_LINK_UP_P3); | |
1618 | } else { | |
f98a9f69 | 1619 | val = NXRD32(adapter, CRB_XG_STATE); |
3bf26ce3 DP |
1620 | if (adapter->ahw.port_type == NETXEN_NIC_GBE) |
1621 | linkup = (val >> port) & 1; | |
1622 | else { | |
1623 | val = (val >> port*8) & 0xff; | |
1624 | linkup = (val == XG_LINK_UP); | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | netxen_advert_link_change(adapter, linkup); | |
1629 | } | |
1630 | ||
3d396eb1 AK |
1631 | static void netxen_watchdog(unsigned long v) |
1632 | { | |
1633 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1634 | |
1635 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1636 | } |
1637 | ||
a97342f9 DP |
1638 | void netxen_watchdog_task(struct work_struct *work) |
1639 | { | |
1640 | struct netxen_adapter *adapter = | |
1641 | container_of(work, struct netxen_adapter, watchdog_task); | |
1642 | ||
e4135c2d | 1643 | if (netxen_nic_check_temp(adapter)) |
a97342f9 DP |
1644 | return; |
1645 | ||
3bf26ce3 DP |
1646 | if (!adapter->has_link_events) |
1647 | netxen_nic_handle_phy_intr(adapter); | |
a97342f9 | 1648 | |
922c4f2c DP |
1649 | if (netif_running(adapter->netdev)) |
1650 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
a97342f9 DP |
1651 | } |
1652 | ||
3d396eb1 AK |
1653 | static void netxen_tx_timeout(struct net_device *netdev) |
1654 | { | |
3176ff3e MT |
1655 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1656 | netdev_priv(netdev); | |
1657 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1658 | } |
1659 | ||
6d5aefb8 | 1660 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1661 | { |
4790654c | 1662 | struct netxen_adapter *adapter = |
3176ff3e | 1663 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 | 1664 | |
b2af9cb0 DP |
1665 | if (!netif_running(adapter->netdev)) |
1666 | return; | |
1667 | ||
3d396eb1 | 1668 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", |
6c80b18d | 1669 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1670 | |
d8b100c5 | 1671 | netxen_napi_disable(adapter); |
ba53e6b4 | 1672 | |
6c80b18d | 1673 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 | 1674 | |
d8b100c5 | 1675 | netxen_napi_enable(adapter); |
6c80b18d | 1676 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1677 | } |
1678 | ||
a97342f9 DP |
1679 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) |
1680 | { | |
1681 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1682 | struct net_device_stats *stats = &adapter->net_stats; | |
1683 | ||
1684 | memset(stats, 0, sizeof(*stats)); | |
1685 | ||
a97342f9 | 1686 | stats->rx_packets = adapter->stats.no_rcv; |
e98e3350 | 1687 | stats->tx_packets = adapter->stats.xmitfinished; |
a97342f9 | 1688 | stats->rx_bytes = adapter->stats.rxbytes; |
a97342f9 | 1689 | stats->tx_bytes = adapter->stats.txbytes; |
a97342f9 | 1690 | stats->rx_dropped = adapter->stats.rxdropped; |
a97342f9 DP |
1691 | stats->tx_dropped = adapter->stats.txdropped; |
1692 | ||
1693 | return stats; | |
1694 | } | |
1695 | ||
e4c93c81 | 1696 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1697 | { |
d8b100c5 DP |
1698 | struct nx_host_sds_ring *sds_ring = data; |
1699 | struct netxen_adapter *adapter = sds_ring->adapter; | |
d71e1be8 DP |
1700 | u32 status = 0; |
1701 | ||
1702 | status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1703 | ||
1704 | if (!(status & adapter->legacy_intr.int_vec_bit)) | |
05aaa02d | 1705 | return IRQ_NONE; |
e01872af | 1706 | |
d71e1be8 DP |
1707 | if (adapter->ahw.revision_id >= NX_P3_B1) { |
1708 | /* check interrupt state machine, to be sure */ | |
1709 | status = adapter->pci_read_immediate(adapter, | |
1710 | ISR_INT_STATE_REG); | |
1711 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1712 | return IRQ_NONE; | |
1713 | ||
092bc571 DP |
1714 | } else { |
1715 | unsigned long our_int = 0; | |
d71e1be8 | 1716 | |
f98a9f69 | 1717 | our_int = NXRD32(adapter, CRB_INT_VECTOR); |
092bc571 | 1718 | |
d71e1be8 | 1719 | /* not our interrupt */ |
092bc571 | 1720 | if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) |
d71e1be8 DP |
1721 | return IRQ_NONE; |
1722 | ||
092bc571 | 1723 | /* claim interrupt */ |
f98a9f69 | 1724 | NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff)); |
e01872af | 1725 | } |
1726 | ||
092bc571 DP |
1727 | /* clear interrupt */ |
1728 | if (adapter->fw_major < 4) | |
d8b100c5 | 1729 | netxen_nic_disable_int(sds_ring); |
092bc571 DP |
1730 | |
1731 | adapter->pci_write_immediate(adapter, | |
1732 | adapter->legacy_intr.tgt_status_reg, | |
1733 | 0xffffffff); | |
1734 | /* read twice to ensure write is flushed */ | |
1735 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1736 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1737 | ||
d8b100c5 | 1738 | napi_schedule(&sds_ring->napi); |
3d396eb1 AK |
1739 | |
1740 | return IRQ_HANDLED; | |
1741 | } | |
1742 | ||
e4c93c81 | 1743 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d | 1744 | { |
d8b100c5 DP |
1745 | struct nx_host_sds_ring *sds_ring = data; |
1746 | struct netxen_adapter *adapter = sds_ring->adapter; | |
05aaa02d | 1747 | |
092bc571 DP |
1748 | /* clear interrupt */ |
1749 | adapter->pci_write_immediate(adapter, | |
7a2469ce | 1750 | adapter->msi_tgt_status, 0xffffffff); |
092bc571 | 1751 | |
d8b100c5 | 1752 | napi_schedule(&sds_ring->napi); |
05aaa02d DP |
1753 | return IRQ_HANDLED; |
1754 | } | |
1755 | ||
b3df68f8 DP |
1756 | static irqreturn_t netxen_msix_intr(int irq, void *data) |
1757 | { | |
d8b100c5 | 1758 | struct nx_host_sds_ring *sds_ring = data; |
b3df68f8 | 1759 | |
d8b100c5 | 1760 | napi_schedule(&sds_ring->napi); |
b3df68f8 DP |
1761 | return IRQ_HANDLED; |
1762 | } | |
1763 | ||
bea3348e | 1764 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1765 | { |
d8b100c5 DP |
1766 | struct nx_host_sds_ring *sds_ring = |
1767 | container_of(napi, struct nx_host_sds_ring, napi); | |
1768 | ||
1769 | struct netxen_adapter *adapter = sds_ring->adapter; | |
1770 | ||
05aaa02d | 1771 | int tx_complete; |
bea3348e | 1772 | int work_done; |
3d396eb1 | 1773 | |
05aaa02d | 1774 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1775 | |
d8b100c5 | 1776 | work_done = netxen_process_rcv_ring(sds_ring, budget); |
3d396eb1 | 1777 | |
05aaa02d | 1778 | if ((work_done < budget) && tx_complete) { |
d8b100c5 | 1779 | napi_complete(&sds_ring->napi); |
b2af9cb0 DP |
1780 | if (netif_running(adapter->netdev)) |
1781 | netxen_nic_enable_int(sds_ring); | |
3d396eb1 AK |
1782 | } |
1783 | ||
bea3348e | 1784 | return work_done; |
3d396eb1 AK |
1785 | } |
1786 | ||
1787 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1788 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1789 | { | |
3176ff3e | 1790 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1791 | disable_irq(adapter->irq); |
1494a814 | 1792 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1793 | enable_irq(adapter->irq); |
1794 | } | |
1795 | #endif | |
3d396eb1 AK |
1796 | |
1797 | static struct pci_driver netxen_driver = { | |
1798 | .name = netxen_nic_driver_name, | |
1799 | .id_table = netxen_pci_tbl, | |
1800 | .probe = netxen_nic_probe, | |
0b72e659 | 1801 | .remove = __devexit_p(netxen_nic_remove), |
01542cd1 | 1802 | #ifdef CONFIG_PM |
0b72e659 DP |
1803 | .suspend = netxen_nic_suspend, |
1804 | .resume = netxen_nic_resume | |
01542cd1 | 1805 | #endif |
3d396eb1 AK |
1806 | }; |
1807 | ||
1808 | /* Driver Registration on NetXen card */ | |
1809 | ||
1810 | static int __init netxen_init_module(void) | |
1811 | { | |
ff4fbd43 DP |
1812 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
1813 | ||
79ea13ce | 1814 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1815 | return -ENOMEM; |
1816 | ||
184231bd | 1817 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1818 | } |
1819 | ||
1820 | module_init(netxen_init_module); | |
1821 | ||
1822 | static void __exit netxen_exit_module(void) | |
1823 | { | |
3d396eb1 | 1824 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1825 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1826 | } |
1827 | ||
1828 | module_exit(netxen_exit_module); |