Commit | Line | Data |
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3d396eb1 AK |
1 | /* |
2 | * Copyright (C) 2003 - 2006 NetXen, Inc. | |
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 | |
25 | * NetXen, | |
26 | * 3965 Freedom Circle, Fourth floor, | |
27 | * Santa Clara, CA 95054 | |
28 | * | |
29 | * | |
30 | * Main source file for NetXen NIC Driver on Linux | |
31 | * | |
32 | */ | |
33 | ||
cb8011ad | 34 | #include <linux/vmalloc.h> |
ed25ffa1 | 35 | #include <linux/highmem.h> |
3d396eb1 AK |
36 | #include "netxen_nic_hw.h" |
37 | ||
38 | #include "netxen_nic.h" | |
3d396eb1 | 39 | #include "netxen_nic_phan_reg.h" |
3d396eb1 | 40 | |
1494a814 | 41 | #include <linux/dma-mapping.h> |
c9bdd4b5 | 42 | #include <net/ip.h> |
1494a814 | 43 | |
3d396eb1 AK |
44 | MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); |
45 | MODULE_LICENSE("GPL"); | |
46 | MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); | |
47 | ||
ceded32f | 48 | char netxen_nic_driver_name[] = "netxen_nic"; |
3d396eb1 | 49 | static char netxen_nic_driver_string[] = "NetXen Network Driver version " |
cb8011ad | 50 | NETXEN_NIC_LINUX_VERSIONID; |
3d396eb1 | 51 | |
2956640d DP |
52 | static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
53 | ||
54 | /* Default to restricted 1G auto-neg mode */ | |
55 | static int wol_port_mode = 5; | |
56 | ||
57 | static int use_msi = 1; | |
58 | ||
59 | static int use_msi_x = 1; | |
60 | ||
3d396eb1 AK |
61 | /* Local functions to NetXen NIC driver */ |
62 | static int __devinit netxen_nic_probe(struct pci_dev *pdev, | |
2956640d | 63 | const struct pci_device_id *ent); |
3d396eb1 AK |
64 | static void __devexit netxen_nic_remove(struct pci_dev *pdev); |
65 | static int netxen_nic_open(struct net_device *netdev); | |
66 | static int netxen_nic_close(struct net_device *netdev); | |
67 | static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); | |
68 | static void netxen_tx_timeout(struct net_device *netdev); | |
6d5aefb8 | 69 | static void netxen_tx_timeout_task(struct work_struct *work); |
3d396eb1 | 70 | static void netxen_watchdog(unsigned long); |
bea3348e | 71 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
3d396eb1 AK |
72 | #ifdef CONFIG_NET_POLL_CONTROLLER |
73 | static void netxen_nic_poll_controller(struct net_device *netdev); | |
74 | #endif | |
1494a814 | 75 | static irqreturn_t netxen_intr(int irq, void *data); |
05aaa02d | 76 | static irqreturn_t netxen_msi_intr(int irq, void *data); |
3d396eb1 AK |
77 | |
78 | /* PCI Device ID Table */ | |
70081ac5 AV |
79 | #define ENTRY(device) \ |
80 | {PCI_DEVICE(0x4040, (device)), \ | |
81 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} | |
82 | ||
3d396eb1 | 83 | static struct pci_device_id netxen_pci_tbl[] __devinitdata = { |
70081ac5 AV |
84 | ENTRY(0x0001), |
85 | ENTRY(0x0002), | |
86 | ENTRY(0x0003), | |
87 | ENTRY(0x0004), | |
88 | ENTRY(0x0005), | |
89 | ENTRY(0x0024), | |
90 | ENTRY(0x0025), | |
e4c93c81 | 91 | ENTRY(0x0100), |
3d396eb1 AK |
92 | {0,} |
93 | }; | |
94 | ||
95 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); | |
96 | ||
b1555130 AB |
97 | /* |
98 | * In netxen_nic_down(), we must wait for any pending callback requests into | |
99 | * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be | |
100 | * reenabled right after it is deleted in netxen_nic_down(). | |
101 | * FLUSH_SCHEDULED_WORK() does this synchronization. | |
102 | * | |
103 | * Normally, schedule_work()/flush_scheduled_work() could have worked, but | |
104 | * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() | |
105 | * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a | |
106 | * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause | |
107 | * linkwatch_event() to be executed which also attempts to acquire the rtnl | |
108 | * lock thus causing a deadlock. | |
109 | */ | |
110 | ||
111 | static struct workqueue_struct *netxen_workq; | |
112 | #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) | |
113 | #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) | |
114 | ||
ed25ffa1 AK |
115 | static void netxen_watchdog(unsigned long); |
116 | ||
7830b22c DP |
117 | static uint32_t crb_cmd_producer[4] = { |
118 | CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, | |
119 | CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 | |
120 | }; | |
121 | ||
c9fc891f | 122 | void |
3ce06a32 DP |
123 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
124 | uint32_t crb_producer) | |
3176ff3e | 125 | { |
3ce06a32 DP |
126 | adapter->pci_write_normalize(adapter, |
127 | adapter->crb_addr_cmd_producer, crb_producer); | |
3176ff3e MT |
128 | } |
129 | ||
7830b22c DP |
130 | static uint32_t crb_cmd_consumer[4] = { |
131 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, | |
132 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 | |
133 | }; | |
134 | ||
3ce06a32 DP |
135 | static inline void |
136 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
137 | u32 crb_consumer) | |
3176ff3e | 138 | { |
3ce06a32 DP |
139 | adapter->pci_write_normalize(adapter, |
140 | adapter->crb_addr_cmd_consumer, crb_consumer); | |
3176ff3e MT |
141 | } |
142 | ||
2956640d | 143 | static uint32_t msi_tgt_status[8] = { |
443be796 | 144 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
2956640d DP |
145 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
146 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
147 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
443be796 DP |
148 | }; |
149 | ||
2956640d DP |
150 | static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
151 | ||
4638aef1 SH |
152 | static void netxen_nic_disable_int(struct netxen_adapter *adapter) |
153 | { | |
443be796 | 154 | u32 mask = 0x7ff; |
4638aef1 | 155 | int retries = 32; |
443be796 | 156 | int pci_fn = adapter->ahw.pci_func; |
4638aef1 | 157 | |
f0c88f9c | 158 | if (adapter->msi_mode != MSI_MODE_MULTIFUNC) |
48bfd1e0 DP |
159 | adapter->pci_write_normalize(adapter, |
160 | adapter->crb_intr_mask, 0); | |
4638aef1 SH |
161 | |
162 | if (adapter->intr_scheme != -1 && | |
163 | adapter->intr_scheme != INTR_SCHEME_PERPORT) | |
3ce06a32 | 164 | adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask); |
4638aef1 | 165 | |
2956640d | 166 | if (!NETXEN_IS_MSI_FAMILY(adapter)) { |
4638aef1 | 167 | do { |
3ce06a32 DP |
168 | adapter->pci_write_immediate(adapter, |
169 | ISR_INT_TARGET_STATUS, 0xffffffff); | |
170 | mask = adapter->pci_read_immediate(adapter, | |
171 | ISR_INT_VECTOR); | |
4638aef1 SH |
172 | if (!(mask & 0x80)) |
173 | break; | |
174 | udelay(10); | |
175 | } while (--retries); | |
176 | ||
177 | if (!retries) { | |
178 | printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", | |
179 | netxen_nic_driver_name); | |
180 | } | |
443be796 DP |
181 | } else { |
182 | if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { | |
3ce06a32 DP |
183 | adapter->pci_write_immediate(adapter, |
184 | msi_tgt_status[pci_fn], 0xffffffff); | |
443be796 | 185 | } |
4638aef1 | 186 | } |
4638aef1 SH |
187 | } |
188 | ||
189 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
190 | { | |
191 | u32 mask; | |
192 | ||
193 | DPRINTK(1, INFO, "Entered ISR Enable \n"); | |
194 | ||
195 | if (adapter->intr_scheme != -1 && | |
196 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
197 | switch (adapter->ahw.board_type) { | |
198 | case NETXEN_NIC_GBE: | |
199 | mask = 0x77b; | |
200 | break; | |
201 | case NETXEN_NIC_XGBE: | |
202 | mask = 0x77f; | |
203 | break; | |
204 | default: | |
205 | mask = 0x7ff; | |
206 | break; | |
207 | } | |
208 | ||
3ce06a32 | 209 | adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask); |
4638aef1 SH |
210 | } |
211 | ||
48bfd1e0 | 212 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1); |
4638aef1 | 213 | |
2956640d | 214 | if (!NETXEN_IS_MSI_FAMILY(adapter)) { |
4638aef1 SH |
215 | mask = 0xbff; |
216 | if (adapter->intr_scheme != -1 && | |
217 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
3ce06a32 DP |
218 | adapter->pci_write_normalize(adapter, |
219 | CRB_INT_VECTOR, 0); | |
4638aef1 | 220 | } |
3ce06a32 DP |
221 | adapter->pci_write_immediate(adapter, |
222 | ISR_INT_TARGET_MASK, mask); | |
4638aef1 SH |
223 | } |
224 | ||
225 | DPRINTK(1, INFO, "Done with enable Int\n"); | |
226 | } | |
227 | ||
2956640d DP |
228 | static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) |
229 | { | |
230 | struct pci_dev *pdev = adapter->pdev; | |
231 | int err; | |
232 | uint64_t mask; | |
233 | ||
234 | #ifdef CONFIG_IA64 | |
235 | adapter->dma_mask = DMA_32BIT_MASK; | |
236 | #else | |
237 | if (revision_id >= NX_P3_B0) { | |
238 | /* should go to DMA_64BIT_MASK */ | |
239 | adapter->dma_mask = DMA_39BIT_MASK; | |
240 | mask = DMA_39BIT_MASK; | |
241 | } else if (revision_id == NX_P3_A2) { | |
242 | adapter->dma_mask = DMA_39BIT_MASK; | |
243 | mask = DMA_39BIT_MASK; | |
244 | } else if (revision_id == NX_P2_C1) { | |
245 | adapter->dma_mask = DMA_35BIT_MASK; | |
246 | mask = DMA_35BIT_MASK; | |
247 | } else { | |
248 | adapter->dma_mask = DMA_32BIT_MASK; | |
249 | mask = DMA_32BIT_MASK; | |
250 | goto set_32_bit_mask; | |
251 | } | |
252 | ||
253 | /* | |
254 | * Consistent DMA mask is set to 32 bit because it cannot be set to | |
255 | * 35 bits. For P3 also leave it at 32 bits for now. Only the rings | |
256 | * come off this pool. | |
257 | */ | |
258 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
259 | pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) { | |
260 | adapter->pci_using_dac = 1; | |
261 | return 0; | |
262 | } | |
263 | #endif /* CONFIG_IA64 */ | |
264 | ||
265 | set_32_bit_mask: | |
266 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
267 | if (!err) | |
268 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
269 | if (err) { | |
270 | DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err); | |
271 | return err; | |
272 | } | |
273 | ||
274 | adapter->pci_using_dac = 0; | |
275 | return 0; | |
276 | } | |
277 | ||
278 | static void netxen_check_options(struct netxen_adapter *adapter) | |
279 | { | |
280 | switch (adapter->ahw.boardcfg.board_type) { | |
281 | case NETXEN_BRDTYPE_P3_HMEZ: | |
282 | case NETXEN_BRDTYPE_P3_XG_LOM: | |
283 | case NETXEN_BRDTYPE_P3_10G_CX4: | |
284 | case NETXEN_BRDTYPE_P3_10G_CX4_LP: | |
285 | case NETXEN_BRDTYPE_P3_IMEZ: | |
286 | case NETXEN_BRDTYPE_P3_10G_SFP_PLUS: | |
a70f9393 DP |
287 | case NETXEN_BRDTYPE_P3_10G_SFP_QT: |
288 | case NETXEN_BRDTYPE_P3_10G_SFP_CT: | |
2956640d DP |
289 | case NETXEN_BRDTYPE_P3_10G_XFP: |
290 | case NETXEN_BRDTYPE_P3_10000_BASE_T: | |
291 | adapter->msix_supported = !!use_msi_x; | |
292 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
293 | break; | |
294 | ||
295 | case NETXEN_BRDTYPE_P2_SB31_10G: | |
296 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: | |
297 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
298 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
299 | adapter->msix_supported = 0; | |
300 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
301 | break; | |
302 | ||
303 | case NETXEN_BRDTYPE_P3_REF_QG: | |
304 | case NETXEN_BRDTYPE_P3_4_GB: | |
305 | case NETXEN_BRDTYPE_P3_4_GB_MM: | |
a70f9393 DP |
306 | adapter->msix_supported = 0; |
307 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
308 | break; | |
309 | ||
2956640d DP |
310 | case NETXEN_BRDTYPE_P2_SB35_4G: |
311 | case NETXEN_BRDTYPE_P2_SB31_2G: | |
312 | adapter->msix_supported = 0; | |
313 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
314 | break; | |
315 | ||
316 | default: | |
317 | adapter->msix_supported = 0; | |
318 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
319 | ||
320 | printk(KERN_WARNING "Unknown board type(0x%x)\n", | |
321 | adapter->ahw.boardcfg.board_type); | |
322 | break; | |
323 | } | |
324 | ||
325 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
326 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
327 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
328 | ||
329 | adapter->max_possible_rss_rings = 1; | |
330 | return; | |
331 | } | |
332 | ||
333 | static int | |
334 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
335 | { | |
336 | int ret = 0; | |
337 | ||
338 | if (first_boot == 0x55555555) { | |
339 | /* This is the first boot after power up */ | |
340 | ||
341 | /* PCI bus master workaround */ | |
342 | adapter->hw_read_wx(adapter, | |
343 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
344 | if (!(first_boot & 0x4)) { | |
345 | first_boot |= 0x4; | |
346 | adapter->hw_write_wx(adapter, | |
347 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
348 | adapter->hw_read_wx(adapter, | |
349 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
350 | } | |
351 | ||
352 | /* This is the first boot after power up */ | |
353 | adapter->hw_read_wx(adapter, | |
354 | NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); | |
355 | if (first_boot != 0x80000f) { | |
356 | /* clear the register for future unloads/loads */ | |
357 | adapter->pci_write_normalize(adapter, | |
358 | NETXEN_CAM_RAM(0x1fc), 0); | |
359 | ret = -1; | |
360 | } | |
361 | ||
362 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
363 | /* Start P2 boot loader */ | |
364 | adapter->pci_write_normalize(adapter, | |
365 | NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
366 | adapter->pci_write_normalize(adapter, | |
367 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
368 | } | |
369 | } | |
370 | return ret; | |
371 | } | |
372 | ||
373 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
374 | { | |
375 | u32 val, data; | |
376 | ||
377 | val = adapter->ahw.boardcfg.board_type; | |
378 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || | |
379 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
380 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
381 | data = NETXEN_PORT_MODE_802_3_AP; | |
382 | adapter->hw_write_wx(adapter, | |
383 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
384 | } else if (port_mode == NETXEN_PORT_MODE_XG) { | |
385 | data = NETXEN_PORT_MODE_XG; | |
386 | adapter->hw_write_wx(adapter, | |
387 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
388 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { | |
389 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
390 | adapter->hw_write_wx(adapter, | |
391 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
392 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { | |
393 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
394 | adapter->hw_write_wx(adapter, | |
395 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
396 | } else { | |
397 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
398 | adapter->hw_write_wx(adapter, | |
399 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
400 | } | |
401 | ||
402 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && | |
403 | (wol_port_mode != NETXEN_PORT_MODE_XG) && | |
404 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && | |
405 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { | |
406 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; | |
407 | } | |
408 | adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, | |
409 | &wol_port_mode, 4); | |
410 | } | |
411 | } | |
412 | ||
413 | #define PCI_CAP_ID_GEN 0x10 | |
414 | ||
415 | static void netxen_pcie_strap_init(struct netxen_adapter *adapter) | |
416 | { | |
417 | u32 pdevfuncsave; | |
418 | u32 c8c9value = 0; | |
419 | u32 chicken = 0; | |
420 | u32 control = 0; | |
421 | int i, pos; | |
422 | struct pci_dev *pdev; | |
423 | ||
424 | pdev = pci_get_device(0x1166, 0x0140, NULL); | |
425 | if (pdev) { | |
426 | pci_dev_put(pdev); | |
427 | adapter->hw_read_wx(adapter, | |
428 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
429 | chicken |= 0x4000; | |
430 | adapter->hw_write_wx(adapter, | |
431 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
432 | } | |
433 | ||
434 | pdev = adapter->pdev; | |
435 | ||
436 | adapter->hw_read_wx(adapter, | |
437 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
438 | /* clear chicken3.25:24 */ | |
439 | chicken &= 0xFCFFFFFF; | |
440 | /* | |
441 | * if gen1 and B0, set F1020 - if gen 2, do nothing | |
442 | * if gen2 set to F1000 | |
443 | */ | |
444 | pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); | |
445 | if (pos == 0xC0) { | |
446 | pci_read_config_dword(pdev, pos + 0x10, &control); | |
447 | if ((control & 0x000F0000) != 0x00020000) { | |
448 | /* set chicken3.24 if gen1 */ | |
449 | chicken |= 0x01000000; | |
450 | } | |
451 | printk(KERN_INFO "%s Gen2 strapping detected\n", | |
452 | netxen_nic_driver_name); | |
453 | c8c9value = 0xF1000; | |
454 | } else { | |
455 | /* set chicken3.24 if gen1 */ | |
456 | chicken |= 0x01000000; | |
457 | printk(KERN_INFO "%s Gen1 strapping detected\n", | |
458 | netxen_nic_driver_name); | |
459 | if (adapter->ahw.revision_id == NX_P3_B0) | |
460 | c8c9value = 0xF1020; | |
461 | else | |
462 | c8c9value = 0; | |
463 | ||
464 | } | |
465 | adapter->hw_write_wx(adapter, | |
466 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
467 | ||
468 | if (!c8c9value) | |
469 | return; | |
470 | ||
471 | pdevfuncsave = pdev->devfn; | |
472 | if (pdevfuncsave & 0x07) | |
473 | return; | |
474 | ||
475 | for (i = 0; i < 8; i++) { | |
476 | pci_read_config_dword(pdev, pos + 8, &control); | |
477 | pci_read_config_dword(pdev, pos + 8, &control); | |
478 | pci_write_config_dword(pdev, pos + 8, c8c9value); | |
479 | pdev->devfn++; | |
480 | } | |
481 | pdev->devfn = pdevfuncsave; | |
482 | } | |
483 | ||
484 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) | |
485 | { | |
486 | u32 control; | |
487 | int pos; | |
488 | ||
489 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
490 | if (pos) { | |
491 | pci_read_config_dword(pdev, pos, &control); | |
492 | if (enable) | |
493 | control |= PCI_MSIX_FLAGS_ENABLE; | |
494 | else | |
495 | control = 0; | |
496 | pci_write_config_dword(pdev, pos, control); | |
497 | } | |
498 | } | |
499 | ||
500 | static void netxen_init_msix_entries(struct netxen_adapter *adapter) | |
501 | { | |
502 | int i; | |
503 | ||
504 | for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) | |
505 | adapter->msix_entries[i].entry = i; | |
506 | } | |
507 | ||
3d396eb1 AK |
508 | /* |
509 | * netxen_nic_probe() | |
510 | * | |
511 | * The Linux system will invoke this after identifying the vendor ID and | |
512 | * device Id in the pci_tbl supported by this module. | |
513 | * | |
514 | * A quad port card has one operational PCI config space, (function 0), | |
515 | * which is used to access all four ports. | |
516 | * | |
517 | * This routine will initialize the adapter, and setup the global parameters | |
518 | * along with the port's specific structure. | |
519 | */ | |
520 | static int __devinit | |
521 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
522 | { | |
523 | struct net_device *netdev = NULL; | |
524 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
525 | void __iomem *mem_ptr0 = NULL; |
526 | void __iomem *mem_ptr1 = NULL; | |
527 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
528 | unsigned long first_page_group_end; |
529 | unsigned long first_page_group_start; | |
530 | ||
cb8011ad | 531 | |
a608ab9c | 532 | u8 __iomem *db_ptr = NULL; |
2956640d DP |
533 | unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0; |
534 | int i = 0, err; | |
535 | int first_driver, first_boot; | |
f305f789 | 536 | __le64 mac_addr[FLASH_NUM_PORTS + 1]; |
6c80b18d | 537 | u32 val; |
3176ff3e | 538 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 539 | DECLARE_MAC_BUF(mac); |
2956640d DP |
540 | struct netxen_legacy_intr_set *legacy_intrp; |
541 | uint8_t revision_id; | |
3d396eb1 | 542 | |
dcd56fdb | 543 | if (pci_func_id == 0) |
2956640d | 544 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
6c80b18d | 545 | |
3176ff3e | 546 | if (pdev->class != 0x020000) { |
dcd56fdb | 547 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 548 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
549 | return -ENODEV; |
550 | } | |
2956640d | 551 | |
3d396eb1 AK |
552 | if ((err = pci_enable_device(pdev))) |
553 | return err; | |
2956640d | 554 | |
3d396eb1 AK |
555 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
556 | err = -ENODEV; | |
557 | goto err_out_disable_pdev; | |
558 | } | |
559 | ||
560 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
561 | goto err_out_disable_pdev; | |
562 | ||
563 | pci_set_master(pdev); | |
3176ff3e MT |
564 | |
565 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
566 | if(!netdev) { | |
567 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
568 | "device block.Check system memory resource" | |
569 | " usage.\n", netxen_nic_driver_name); | |
570 | goto err_out_free_res; | |
571 | } | |
572 | ||
3176ff3e MT |
573 | SET_NETDEV_DEV(netdev, &pdev->dev); |
574 | ||
575 | adapter = netdev->priv; | |
2956640d DP |
576 | adapter->netdev = netdev; |
577 | adapter->pdev = pdev; | |
13ba9c77 | 578 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
579 | |
580 | revision_id = pdev->revision; | |
581 | adapter->ahw.revision_id = revision_id; | |
582 | ||
583 | err = nx_set_dma_mask(adapter, revision_id); | |
584 | if (err) | |
585 | goto err_out_free_netdev; | |
586 | ||
3ce06a32 DP |
587 | rwlock_init(&adapter->adapter_lock); |
588 | adapter->ahw.qdr_sn_window = -1; | |
589 | adapter->ahw.ddr_mn_window = -1; | |
13ba9c77 | 590 | |
3d396eb1 AK |
591 | /* remap phys address */ |
592 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
593 | mem_len = pci_resource_len(pdev, 0); | |
3ce06a32 DP |
594 | pci_len0 = 0; |
595 | ||
596 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
597 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
598 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
599 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
600 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
601 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
602 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
603 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
604 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
3d396eb1 AK |
605 | |
606 | /* 128 Meg of memory */ | |
6c80b18d MT |
607 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
608 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
609 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
610 | SECOND_PAGE_GROUP_SIZE); | |
611 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
612 | THIRD_PAGE_GROUP_SIZE); | |
613 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
614 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
615 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
616 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
617 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
618 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
619 | first_page_group_start = 0; | |
620 | first_page_group_end = 0; | |
3ce06a32 DP |
621 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
622 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
623 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
624 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
625 | adapter->pci_write_immediate = | |
626 | netxen_nic_pci_write_immediate_2M; | |
627 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
628 | adapter->pci_write_normalize = | |
629 | netxen_nic_pci_write_normalize_2M; | |
630 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
631 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
632 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
633 | ||
634 | mem_ptr0 = ioremap(mem_base, mem_len); | |
635 | pci_len0 = mem_len; | |
636 | first_page_group_start = 0; | |
637 | first_page_group_end = 0; | |
638 | ||
639 | adapter->ahw.ddr_mn_window = 0; | |
640 | adapter->ahw.qdr_sn_window = 0; | |
641 | ||
642 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
643 | (pci_func_id * 0x20); | |
644 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
645 | if (pci_func_id < 4) | |
646 | adapter->ahw.ms_win_crb += (pci_func_id * 0x20); | |
647 | else | |
648 | adapter->ahw.ms_win_crb += | |
649 | 0xA0 + ((pci_func_id - 4) * 0x10); | |
6c80b18d | 650 | } else { |
4790654c | 651 | err = -EIO; |
6c80b18d MT |
652 | goto err_out_free_netdev; |
653 | } | |
cb8011ad | 654 | |
3ce06a32 | 655 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
cb8011ad | 656 | |
ed25ffa1 AK |
657 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
658 | db_len = pci_resource_len(pdev, 4); | |
659 | ||
660 | if (db_len == 0) { | |
661 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
2956640d | 662 | netxen_nic_driver_name); |
ed25ffa1 AK |
663 | err = -EIO; |
664 | goto err_out_iounmap; | |
665 | } | |
666 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
667 | db_len); | |
668 | ||
669 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 670 | if (!db_ptr) { |
ed25ffa1 | 671 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
2956640d | 672 | netxen_nic_driver_name); |
ed25ffa1 AK |
673 | err = -EIO; |
674 | goto err_out_iounmap; | |
3d396eb1 | 675 | } |
ed25ffa1 | 676 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 677 | |
6c80b18d | 678 | adapter->ahw.pci_base0 = mem_ptr0; |
3ce06a32 | 679 | adapter->ahw.pci_len0 = pci_len0; |
6c80b18d MT |
680 | adapter->ahw.first_page_group_start = first_page_group_start; |
681 | adapter->ahw.first_page_group_end = first_page_group_end; | |
682 | adapter->ahw.pci_base1 = mem_ptr1; | |
683 | adapter->ahw.pci_base2 = mem_ptr2; | |
684 | adapter->ahw.db_base = db_ptr; | |
685 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 686 | |
bea3348e | 687 | netif_napi_add(netdev, &adapter->napi, |
2956640d DP |
688 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); |
689 | ||
690 | if (revision_id >= NX_P3_B0) | |
691 | legacy_intrp = &legacy_intr[pci_func_id]; | |
692 | else | |
693 | legacy_intrp = &legacy_intr[0]; | |
694 | ||
695 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
696 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
697 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
698 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
bea3348e | 699 | |
2d1a3bbd | 700 | /* this will be read from FW later */ |
701 | adapter->intr_scheme = -1; | |
443be796 | 702 | adapter->msi_mode = -1; |
2d1a3bbd | 703 | |
704 | /* This will be reset for mezz cards */ | |
3176ff3e | 705 | adapter->portnum = pci_func_id; |
2d1a3bbd | 706 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 707 | adapter->rx_csum = 1; |
623621b0 | 708 | adapter->mc_enabled = 0; |
48bfd1e0 | 709 | if (NX_IS_REVISION_P3(revision_id)) { |
2956640d | 710 | adapter->max_mc_count = 38; |
48bfd1e0 DP |
711 | adapter->max_rds_rings = 2; |
712 | } else { | |
2956640d | 713 | adapter->max_mc_count = 16; |
48bfd1e0 DP |
714 | adapter->max_rds_rings = 3; |
715 | } | |
3176ff3e MT |
716 | |
717 | netdev->open = netxen_nic_open; | |
718 | netdev->stop = netxen_nic_close; | |
719 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 720 | netdev->get_stats = netxen_nic_get_stats; |
c9fc891f DP |
721 | if (NX_IS_REVISION_P3(revision_id)) |
722 | netdev->set_multicast_list = netxen_p3_nic_set_multi; | |
723 | else | |
724 | netdev->set_multicast_list = netxen_p2_nic_set_multi; | |
3176ff3e MT |
725 | netdev->set_mac_address = netxen_nic_set_mac; |
726 | netdev->change_mtu = netxen_nic_change_mtu; | |
727 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 728 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
729 | |
730 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
731 | ||
732 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
733 | #ifdef CONFIG_NET_POLL_CONTROLLER |
734 | netdev->poll_controller = netxen_nic_poll_controller; | |
735 | #endif | |
736 | /* ScatterGather support */ | |
737 | netdev->features = NETIF_F_SG; | |
738 | netdev->features |= NETIF_F_IP_CSUM; | |
739 | netdev->features |= NETIF_F_TSO; | |
cd1f8160 DP |
740 | if (NX_IS_REVISION_P3(revision_id)) { |
741 | netdev->features |= NETIF_F_IPV6_CSUM; | |
2956640d | 742 | netdev->features |= NETIF_F_TSO6; |
cd1f8160 | 743 | } |
3176ff3e | 744 | |
2956640d | 745 | if (adapter->pci_using_dac) |
3176ff3e MT |
746 | netdev->features |= NETIF_F_HIGHDMA; |
747 | ||
6c80b18d MT |
748 | /* |
749 | * Set the CRB window to invalid. If any register in window 0 is | |
750 | * accessed it should set the window to 0 and then reset it to 1. | |
751 | */ | |
752 | adapter->curr_window = 255; | |
753 | ||
dcd56fdb DP |
754 | if (netxen_nic_get_board_info(adapter) != 0) { |
755 | printk("%s: Error getting board config info.\n", | |
2956640d | 756 | netxen_nic_driver_name); |
dcd56fdb DP |
757 | err = -EIO; |
758 | goto err_out_iounmap; | |
759 | } | |
6c80b18d | 760 | |
6c80b18d MT |
761 | netxen_initialize_adapter_ops(adapter); |
762 | ||
13ba9c77 | 763 | /* Mezz cards have PCI function 0,2,3 enabled */ |
dc515f2e DP |
764 | switch (adapter->ahw.boardcfg.board_type) { |
765 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
766 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
767 | if (pci_func_id >= 2) | |
13ba9c77 | 768 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
769 | break; |
770 | default: | |
771 | break; | |
772 | } | |
13ba9c77 | 773 | |
2956640d DP |
774 | /* |
775 | * This call will setup various max rx/tx counts. | |
776 | * It must be done before any buffer/ring allocations. | |
777 | */ | |
778 | netxen_check_options(adapter); | |
3d396eb1 | 779 | |
2956640d DP |
780 | first_driver = 0; |
781 | if (NX_IS_REVISION_P3(revision_id)) { | |
782 | if (adapter->ahw.pci_func == 0) | |
783 | first_driver = 1; | |
784 | } else { | |
785 | if (adapter->portnum == 0) | |
786 | first_driver = 1; | |
787 | } | |
7830b22c DP |
788 | adapter->crb_addr_cmd_producer = crb_cmd_producer[adapter->portnum]; |
789 | adapter->crb_addr_cmd_consumer = crb_cmd_consumer[adapter->portnum]; | |
3176ff3e MT |
790 | netxen_nic_update_cmd_producer(adapter, 0); |
791 | netxen_nic_update_cmd_consumer(adapter, 0); | |
3d396eb1 | 792 | |
2956640d DP |
793 | if (first_driver) { |
794 | first_boot = adapter->pci_read_normalize(adapter, | |
795 | NETXEN_CAM_RAM(0x1fc)); | |
3176ff3e | 796 | |
2956640d DP |
797 | err = netxen_check_hw_init(adapter, first_boot); |
798 | if (err) { | |
799 | printk(KERN_ERR "%s: error in init HW init sequence\n", | |
800 | netxen_nic_driver_name); | |
801 | goto err_out_iounmap; | |
3176ff3e | 802 | } |
3176ff3e | 803 | |
2956640d DP |
804 | if (NX_IS_REVISION_P3(revision_id)) |
805 | netxen_set_port_mode(adapter); | |
806 | ||
807 | if (first_boot != 0x55555555) { | |
3ce06a32 DP |
808 | adapter->pci_write_normalize(adapter, |
809 | CRB_CMDPEG_STATE, 0); | |
439b454e DP |
810 | netxen_pinit_from_rom(adapter, 0); |
811 | msleep(1); | |
812 | netxen_load_firmware(adapter); | |
2956640d DP |
813 | } |
814 | ||
815 | if (NX_IS_REVISION_P3(revision_id)) | |
816 | netxen_pcie_strap_init(adapter); | |
817 | ||
818 | if (NX_IS_REVISION_P2(revision_id)) { | |
623621b0 DP |
819 | |
820 | /* Initialize multicast addr pool owners */ | |
821 | val = 0x7654; | |
822 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
823 | val |= 0x0f000000; | |
824 | netxen_crb_writelit_adapter(adapter, | |
825 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
826 | ||
6c80b18d | 827 | } |
96acb6eb | 828 | |
2956640d DP |
829 | if ((first_boot == 0x55555555) && |
830 | (NX_IS_REVISION_P2(revision_id))) { | |
831 | /* Unlock the HW, prompting the boot sequence */ | |
832 | adapter->pci_write_normalize(adapter, | |
833 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
834 | } | |
835 | ||
836 | err = netxen_initialize_adapter_offload(adapter); | |
837 | if (err) | |
838 | goto err_out_iounmap; | |
6c80b18d MT |
839 | |
840 | /* | |
841 | * Tell the hardware our version number. | |
842 | */ | |
4790654c | 843 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
844 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
845 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
3ce06a32 | 846 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); |
3d396eb1 | 847 | |
3176ff3e MT |
848 | /* Handshake with the card before we register the devices. */ |
849 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
2956640d | 850 | |
2956640d DP |
851 | } /* first_driver */ |
852 | ||
853 | netxen_nic_flash_print(adapter); | |
3d396eb1 | 854 | |
d9e651bc DP |
855 | if (NX_IS_REVISION_P3(revision_id)) { |
856 | adapter->hw_read_wx(adapter, | |
857 | NETXEN_MIU_MN_CONTROL, &val, 4); | |
858 | adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; | |
859 | dev_info(&pdev->dev, "firmware running in %s mode\n", | |
860 | adapter->ahw.cut_through ? "cut through" : "legacy"); | |
861 | } | |
862 | ||
3d396eb1 | 863 | /* |
6c80b18d | 864 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 865 | */ |
dcd56fdb | 866 | adapter->physical_port = adapter->portnum; |
3ce06a32 | 867 | i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum)); |
6c80b18d | 868 | if (i != 0x55555555) |
3276fbad | 869 | adapter->physical_port = i; |
6c80b18d | 870 | |
2956640d DP |
871 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
872 | ||
873 | netxen_set_msix_bit(pdev, 0); | |
874 | ||
875 | if (NX_IS_REVISION_P3(revision_id)) { | |
876 | if ((mem_len != NETXEN_PCI_128MB_SIZE) && | |
877 | mem_len != NETXEN_PCI_2MB_SIZE) | |
878 | adapter->msix_supported = 0; | |
879 | } | |
880 | ||
881 | if (adapter->msix_supported) { | |
882 | ||
883 | netxen_init_msix_entries(adapter); | |
884 | ||
885 | if (pci_enable_msix(pdev, adapter->msix_entries, | |
886 | MSIX_ENTRIES_PER_ADAPTER)) | |
887 | goto request_msi; | |
888 | ||
889 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
890 | netxen_set_msix_bit(pdev, 1); | |
891 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
892 | ||
893 | } else { | |
894 | request_msi: | |
895 | if (use_msi && !pci_enable_msi(pdev)) { | |
896 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
897 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
898 | } else | |
899 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
900 | } | |
901 | ||
902 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
903 | netdev->irq = adapter->msix_entries[0].vector; | |
904 | else | |
905 | netdev->irq = pdev->irq; | |
906 | ||
907 | err = netxen_receive_peg_ready(adapter); | |
908 | if (err) | |
909 | goto err_out_disable_msi; | |
910 | ||
911 | init_timer(&adapter->watchdog_timer); | |
a97342f9 | 912 | adapter->ahw.linkup = 0; |
2956640d DP |
913 | adapter->watchdog_timer.function = &netxen_watchdog; |
914 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
915 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
916 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
917 | ||
918 | if (netxen_is_flash_supported(adapter) == 0 && | |
919 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) { | |
920 | unsigned char *p; | |
921 | ||
922 | p = (unsigned char *)&mac_addr[adapter->portnum]; | |
923 | netdev->dev_addr[0] = *(p + 5); | |
924 | netdev->dev_addr[1] = *(p + 4); | |
925 | netdev->dev_addr[2] = *(p + 3); | |
926 | netdev->dev_addr[3] = *(p + 2); | |
927 | netdev->dev_addr[4] = *(p + 1); | |
928 | netdev->dev_addr[5] = *(p + 0); | |
929 | ||
930 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
931 | netdev->addr_len); | |
932 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
933 | printk(KERN_ERR "%s: Bad MAC address %s.\n", | |
934 | netxen_nic_driver_name, | |
935 | print_mac(mac, netdev->dev_addr)); | |
936 | } else { | |
937 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
938 | } | |
939 | } | |
940 | ||
3176ff3e MT |
941 | netif_carrier_off(netdev); |
942 | netif_stop_queue(netdev); | |
943 | ||
6c80b18d MT |
944 | if ((err = register_netdev(netdev))) { |
945 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
946 | " aborting\n", netxen_nic_driver_name, | |
947 | adapter->portnum); | |
948 | err = -EIO; | |
2956640d | 949 | goto err_out_disable_msi; |
6c80b18d MT |
950 | } |
951 | ||
952 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 953 | |
2956640d DP |
954 | switch (adapter->ahw.board_type) { |
955 | case NETXEN_NIC_GBE: | |
956 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
957 | adapter->netdev->name); | |
958 | break; | |
959 | case NETXEN_NIC_XGBE: | |
960 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
961 | adapter->netdev->name); | |
962 | break; | |
3d396eb1 | 963 | } |
3d396eb1 | 964 | |
2956640d DP |
965 | return 0; |
966 | ||
967 | err_out_disable_msi: | |
968 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
969 | pci_disable_msix(pdev); | |
6c80b18d MT |
970 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
971 | pci_disable_msi(pdev); | |
972 | ||
2956640d DP |
973 | if (first_driver) |
974 | netxen_free_adapter_offload(adapter); | |
3d396eb1 | 975 | |
2956640d | 976 | err_out_iounmap: |
ed25ffa1 AK |
977 | if (db_ptr) |
978 | iounmap(db_ptr); | |
979 | ||
ed25ffa1 AK |
980 | if (mem_ptr0) |
981 | iounmap(mem_ptr0); | |
982 | if (mem_ptr1) | |
983 | iounmap(mem_ptr1); | |
984 | if (mem_ptr2) | |
985 | iounmap(mem_ptr2); | |
cb8011ad | 986 | |
6c80b18d MT |
987 | err_out_free_netdev: |
988 | free_netdev(netdev); | |
989 | ||
990 | err_out_free_res: | |
3d396eb1 | 991 | pci_release_regions(pdev); |
6c80b18d MT |
992 | |
993 | err_out_disable_pdev: | |
2956640d | 994 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
995 | pci_disable_device(pdev); |
996 | return err; | |
997 | } | |
998 | ||
999 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
1000 | { | |
1001 | struct netxen_adapter *adapter; | |
3176ff3e | 1002 | struct net_device *netdev; |
3d396eb1 | 1003 | |
6c80b18d | 1004 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
1005 | if (adapter == NULL) |
1006 | return; | |
1007 | ||
6c80b18d MT |
1008 | netdev = adapter->netdev; |
1009 | ||
96acb6eb DP |
1010 | unregister_netdev(netdev); |
1011 | ||
96acb6eb | 1012 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
3d396eb1 | 1013 | netxen_free_hw_resources(adapter); |
2956640d | 1014 | netxen_free_sw_resources(adapter); |
96acb6eb | 1015 | } |
3d396eb1 | 1016 | |
439b454e DP |
1017 | if (adapter->portnum == 0) |
1018 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 1019 | |
3052246c | 1020 | if (adapter->irq) |
1021 | free_irq(adapter->irq, adapter); | |
1022 | ||
2956640d DP |
1023 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
1024 | pci_disable_msix(pdev); | |
3052246c | 1025 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
1026 | pci_disable_msi(pdev); | |
1027 | ||
6c80b18d MT |
1028 | iounmap(adapter->ahw.db_base); |
1029 | iounmap(adapter->ahw.pci_base0); | |
1030 | iounmap(adapter->ahw.pci_base1); | |
1031 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
1032 | |
1033 | pci_release_regions(pdev); | |
3052246c | 1034 | pci_disable_device(pdev); |
595e3fb8 MT |
1035 | pci_set_drvdata(pdev, NULL); |
1036 | ||
6c80b18d | 1037 | free_netdev(netdev); |
3d396eb1 AK |
1038 | } |
1039 | ||
1040 | /* | |
1041 | * Called when a network interface is made active | |
1042 | * @returns 0 on success, negative value on failure | |
1043 | */ | |
1044 | static int netxen_nic_open(struct net_device *netdev) | |
1045 | { | |
3176ff3e | 1046 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
1047 | int err = 0; |
1048 | int ctx, ring; | |
05aaa02d DP |
1049 | irq_handler_t handler; |
1050 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 | 1051 | |
dcd56fdb DP |
1052 | if (adapter->driver_mismatch) |
1053 | return -EIO; | |
1054 | ||
3d396eb1 AK |
1055 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
1056 | err = netxen_init_firmware(adapter); | |
1057 | if (err != 0) { | |
1058 | printk(KERN_ERR "Failed to init firmware\n"); | |
1059 | return -EIO; | |
1060 | } | |
3d396eb1 | 1061 | |
2956640d | 1062 | err = netxen_alloc_sw_resources(adapter); |
3d396eb1 | 1063 | if (err) { |
2956640d DP |
1064 | printk(KERN_ERR "%s: Error in setting sw resources\n", |
1065 | netdev->name); | |
3d396eb1 AK |
1066 | return err; |
1067 | } | |
2956640d DP |
1068 | |
1069 | netxen_nic_clear_stats(adapter); | |
1070 | ||
1071 | err = netxen_alloc_hw_resources(adapter); | |
1072 | if (err) { | |
1073 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
1074 | netdev->name); | |
1075 | goto err_out_free_sw; | |
1076 | } | |
1077 | ||
1078 | if (adapter->fw_major < 4) { | |
1079 | adapter->crb_addr_cmd_producer = | |
1080 | crb_cmd_producer[adapter->portnum]; | |
1081 | adapter->crb_addr_cmd_consumer = | |
1082 | crb_cmd_consumer[adapter->portnum]; | |
1083 | } | |
1084 | ||
1085 | netxen_nic_update_cmd_producer(adapter, 0); | |
1086 | netxen_nic_update_cmd_consumer(adapter, 0); | |
1087 | ||
3d396eb1 | 1088 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
48bfd1e0 | 1089 | for (ring = 0; ring < adapter->max_rds_rings; ring++) |
3d396eb1 | 1090 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 1091 | } |
2956640d | 1092 | if (NETXEN_IS_MSI_FAMILY(adapter)) |
05aaa02d DP |
1093 | handler = netxen_msi_intr; |
1094 | else { | |
1095 | flags |= IRQF_SHARED; | |
1096 | handler = netxen_intr; | |
1097 | } | |
2956640d | 1098 | adapter->irq = netdev->irq; |
05aaa02d DP |
1099 | err = request_irq(adapter->irq, handler, |
1100 | flags, netdev->name, adapter); | |
3d396eb1 AK |
1101 | if (err) { |
1102 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
2956640d | 1103 | goto err_out_free_hw; |
3d396eb1 | 1104 | } |
ed25ffa1 AK |
1105 | |
1106 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
1107 | } | |
2956640d | 1108 | |
3d396eb1 AK |
1109 | /* Done here again so that even if phantom sw overwrote it, |
1110 | * we set it */ | |
c9fc891f | 1111 | err = adapter->init_port(adapter, adapter->physical_port); |
2956640d | 1112 | if (err) { |
595e3fb8 MT |
1113 | printk(KERN_ERR "%s: Failed to initialize port %d\n", |
1114 | netxen_nic_driver_name, adapter->portnum); | |
2956640d | 1115 | goto err_out_free_irq; |
595e3fb8 | 1116 | } |
2956640d | 1117 | adapter->macaddr_set(adapter, netdev->dev_addr); |
595e3fb8 | 1118 | |
3176ff3e | 1119 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 | 1120 | |
c9fc891f DP |
1121 | netdev->set_multicast_list(netdev); |
1122 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
1123 | nx_fw_cmd_set_mtu(adapter, netdev->mtu); | |
1124 | else | |
1125 | adapter->set_mtu(adapter, netdev->mtu); | |
ed25ffa1 | 1126 | |
dcd56fdb | 1127 | mod_timer(&adapter->watchdog_timer, jiffies); |
05aaa02d DP |
1128 | |
1129 | napi_enable(&adapter->napi); | |
1130 | netxen_nic_enable_int(adapter); | |
1131 | ||
dcd56fdb | 1132 | netif_start_queue(netdev); |
3d396eb1 AK |
1133 | |
1134 | return 0; | |
2956640d DP |
1135 | |
1136 | err_out_free_irq: | |
1137 | free_irq(adapter->irq, adapter); | |
1138 | err_out_free_hw: | |
1139 | netxen_free_hw_resources(adapter); | |
1140 | err_out_free_sw: | |
1141 | netxen_free_sw_resources(adapter); | |
1142 | return err; | |
3d396eb1 AK |
1143 | } |
1144 | ||
1145 | /* | |
1146 | * netxen_nic_close - Disables a network interface entry point | |
1147 | */ | |
1148 | static int netxen_nic_close(struct net_device *netdev) | |
1149 | { | |
3176ff3e | 1150 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1151 | |
1152 | netif_carrier_off(netdev); | |
1153 | netif_stop_queue(netdev); | |
bea3348e | 1154 | napi_disable(&adapter->napi); |
3d396eb1 | 1155 | |
72b0a7a8 | 1156 | if (adapter->stop_port) |
1157 | adapter->stop_port(adapter); | |
1158 | ||
e01872af | 1159 | netxen_nic_disable_int(adapter); |
1160 | ||
2956640d DP |
1161 | netxen_release_tx_buffers(adapter); |
1162 | ||
96acb6eb DP |
1163 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
1164 | FLUSH_SCHEDULED_WORK(); | |
1165 | del_timer_sync(&adapter->watchdog_timer); | |
1166 | } | |
3d396eb1 AK |
1167 | |
1168 | return 0; | |
1169 | } | |
1170 | ||
cd1f8160 DP |
1171 | void netxen_tso_check(struct netxen_adapter *adapter, |
1172 | struct cmd_desc_type0 *desc, struct sk_buff *skb) | |
1173 | { | |
1174 | if (desc->mss) { | |
1175 | desc->total_hdr_length = (sizeof(struct ethhdr) + | |
1176 | ip_hdrlen(skb) + tcp_hdrlen(skb)); | |
1177 | ||
1178 | if ((NX_IS_REVISION_P3(adapter->ahw.revision_id)) && | |
1179 | (skb->protocol == htons(ETH_P_IPV6))) | |
1180 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO6); | |
1181 | else | |
1182 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO); | |
1183 | ||
1184 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1185 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) | |
1186 | netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT); | |
1187 | else if (ip_hdr(skb)->protocol == IPPROTO_UDP) | |
1188 | netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT); | |
1189 | else | |
1190 | return; | |
1191 | } | |
1192 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1193 | desc->ip_hdr_offset = skb_network_offset(skb); | |
1194 | } | |
1195 | ||
3d396eb1 AK |
1196 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1197 | { | |
3176ff3e | 1198 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1199 | struct netxen_hardware_context *hw = &adapter->ahw; |
1200 | unsigned int first_seg_len = skb->len - skb->data_len; | |
1201 | struct netxen_skb_frag *buffrag; | |
1202 | unsigned int i; | |
1203 | ||
ba53e6b4 | 1204 | u32 producer, consumer; |
3d396eb1 AK |
1205 | u32 saved_producer = 0; |
1206 | struct cmd_desc_type0 *hwdesc; | |
1207 | int k; | |
1208 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 | 1209 | int frag_count; |
3d396eb1 | 1210 | int no_of_desc; |
ba53e6b4 | 1211 | u32 num_txd = adapter->max_tx_desc_count; |
3d396eb1 | 1212 | |
3d396eb1 AK |
1213 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1214 | ||
3d396eb1 AK |
1215 | /* There 4 fragments per descriptor */ |
1216 | no_of_desc = (frag_count + 3) >> 2; | |
cd1f8160 | 1217 | if (netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) { |
cb8011ad AK |
1218 | if (skb_shinfo(skb)->gso_size > 0) { |
1219 | ||
3d396eb1 | 1220 | no_of_desc++; |
ab6a5bb6 | 1221 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 1222 | sizeof(struct ethhdr)) > |
ed25ffa1 | 1223 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
1224 | no_of_desc++; |
1225 | } | |
3d396eb1 AK |
1226 | } |
1227 | } | |
53a01e00 | 1228 | |
ba53e6b4 DP |
1229 | producer = adapter->cmd_producer; |
1230 | smp_mb(); | |
1231 | consumer = adapter->last_cmd_consumer; | |
1232 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
1233 | netif_stop_queue(netdev); | |
1234 | smp_mb(); | |
1235 | return NETDEV_TX_BUSY; | |
53a01e00 | 1236 | } |
3d396eb1 | 1237 | |
3d396eb1 | 1238 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
1239 | saved_producer = producer; |
1240 | hwdesc = &hw->cmd_desc_head[producer]; | |
1241 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1242 | /* Take skb->data itself */ | |
1243 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cd1f8160 DP |
1244 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1245 | skb_shinfo(skb)->gso_size > 0) { | |
a608ab9c | 1246 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 1247 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
1248 | } else { |
1249 | pbuf->mss = 0; | |
1250 | hwdesc->mss = 0; | |
1251 | } | |
3d396eb1 AK |
1252 | pbuf->total_length = skb->len; |
1253 | pbuf->skb = skb; | |
1254 | pbuf->cmd = TX_ETHER_PKT; | |
1255 | pbuf->frag_count = frag_count; | |
3176ff3e | 1256 | pbuf->port = adapter->portnum; |
3d396eb1 | 1257 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1258 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1259 | PCI_DMA_TODEVICE); |
1260 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1261 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1262 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1263 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1264 | |
3176ff3e | 1265 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1266 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1267 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1268 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1269 | ||
1270 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1271 | struct skb_frag_struct *frag; | |
1272 | int len, temp_len; | |
1273 | unsigned long offset; | |
1274 | dma_addr_t temp_dma; | |
1275 | ||
1276 | /* move to next desc. if there is a need */ | |
1277 | if ((i & 0x3) == 0) { | |
1278 | k = 0; | |
ba53e6b4 | 1279 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1280 | hwdesc = &hw->cmd_desc_head[producer]; |
1281 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1282 | pbuf = &adapter->cmd_buf_arr[producer]; |
1283 | pbuf->skb = NULL; | |
3d396eb1 AK |
1284 | } |
1285 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1286 | len = frag->size; | |
1287 | offset = frag->page_offset; | |
1288 | ||
1289 | temp_len = len; | |
3176ff3e | 1290 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1291 | len, PCI_DMA_TODEVICE); |
1292 | ||
1293 | buffrag++; | |
1294 | buffrag->dma = temp_dma; | |
1295 | buffrag->length = temp_len; | |
1296 | ||
3d396eb1 AK |
1297 | switch (k) { |
1298 | case 0: | |
1299 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1300 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1301 | break; | |
1302 | case 1: | |
1303 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1304 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1305 | break; | |
1306 | case 2: | |
1307 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1308 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1309 | break; | |
1310 | case 3: | |
a608ab9c | 1311 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1312 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1313 | break; | |
1314 | } | |
1315 | frag++; | |
1316 | } | |
ba53e6b4 | 1317 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1318 | |
1319 | /* might change opcode to TX_TCP_LSO */ | |
1320 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1321 | ||
1322 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1323 | * the descriptor ring | |
1324 | */ | |
ed25ffa1 AK |
1325 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1326 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1327 | int hdr_len, first_hdr_len, more_hdr; |
1328 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1329 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1330 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1331 | more_hdr = 1; |
1332 | } else { | |
1333 | first_hdr_len = hdr_len; | |
1334 | more_hdr = 0; | |
1335 | } | |
1336 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1337 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1338 | pbuf = &adapter->cmd_buf_arr[producer]; |
1339 | pbuf->skb = NULL; | |
3d396eb1 AK |
1340 | |
1341 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1342 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1343 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1344 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1345 | |
1346 | if (more_hdr) { | |
1347 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1348 | pbuf = &adapter->cmd_buf_arr[producer]; |
1349 | pbuf->skb = NULL; | |
3d396eb1 AK |
1350 | /* copy the next 64 bytes - should be enough except |
1351 | * for pathological case | |
1352 | */ | |
d626f62b ACM |
1353 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1354 | hwdesc, | |
1355 | (hdr_len - | |
1356 | first_hdr_len)); | |
ba53e6b4 | 1357 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1358 | } |
1359 | } | |
6c80b18d | 1360 | |
ba53e6b4 | 1361 | adapter->cmd_producer = producer; |
5dc16268 | 1362 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1363 | |
ba53e6b4 | 1364 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1365 | |
ba53e6b4 | 1366 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1367 | netdev->trans_start = jiffies; |
1368 | ||
3d396eb1 AK |
1369 | return NETDEV_TX_OK; |
1370 | } | |
1371 | ||
a97342f9 DP |
1372 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1373 | { | |
1374 | struct net_device *netdev = adapter->netdev; | |
1375 | uint32_t temp, temp_state, temp_val; | |
1376 | int rv = 0; | |
1377 | ||
1378 | temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE); | |
1379 | ||
1380 | temp_state = nx_get_temp_state(temp); | |
1381 | temp_val = nx_get_temp_val(temp); | |
1382 | ||
1383 | if (temp_state == NX_TEMP_PANIC) { | |
1384 | printk(KERN_ALERT | |
1385 | "%s: Device temperature %d degrees C exceeds" | |
1386 | " maximum allowed. Hardware has been shut down.\n", | |
1387 | netxen_nic_driver_name, temp_val); | |
1388 | ||
1389 | netif_carrier_off(netdev); | |
1390 | netif_stop_queue(netdev); | |
1391 | rv = 1; | |
1392 | } else if (temp_state == NX_TEMP_WARN) { | |
1393 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1394 | printk(KERN_ALERT | |
1395 | "%s: Device temperature %d degrees C " | |
1396 | "exceeds operating range." | |
1397 | " Immediate action needed.\n", | |
1398 | netxen_nic_driver_name, temp_val); | |
1399 | } | |
1400 | } else { | |
1401 | if (adapter->temp == NX_TEMP_WARN) { | |
1402 | printk(KERN_INFO | |
1403 | "%s: Device temperature is now %d degrees C" | |
1404 | " in normal range.\n", netxen_nic_driver_name, | |
1405 | temp_val); | |
1406 | } | |
1407 | } | |
1408 | adapter->temp = temp_state; | |
1409 | return rv; | |
1410 | } | |
1411 | ||
1412 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) | |
1413 | { | |
1414 | struct net_device *netdev = adapter->netdev; | |
1415 | u32 val, port, linkup; | |
1416 | ||
1417 | port = adapter->physical_port; | |
1418 | ||
24a7a455 DP |
1419 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1420 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); | |
1421 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); | |
1422 | linkup = (val == XG_LINK_UP_P3); | |
c9fc891f | 1423 | } else { |
24a7a455 DP |
1424 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); |
1425 | if (adapter->ahw.board_type == NETXEN_NIC_GBE) | |
1426 | linkup = (val >> port) & 1; | |
1427 | else { | |
c9fc891f DP |
1428 | val = (val >> port*8) & 0xff; |
1429 | linkup = (val == XG_LINK_UP); | |
c9fc891f | 1430 | } |
a97342f9 DP |
1431 | } |
1432 | ||
1433 | if (adapter->ahw.linkup && !linkup) { | |
1434 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1435 | netxen_nic_driver_name, netdev->name); | |
1436 | adapter->ahw.linkup = 0; | |
1437 | if (netif_running(netdev)) { | |
1438 | netif_carrier_off(netdev); | |
1439 | netif_stop_queue(netdev); | |
1440 | } | |
1441 | } else if (!adapter->ahw.linkup && linkup) { | |
1442 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1443 | netxen_nic_driver_name, netdev->name); | |
1444 | adapter->ahw.linkup = 1; | |
1445 | if (netif_running(netdev)) { | |
1446 | netif_carrier_on(netdev); | |
1447 | netif_wake_queue(netdev); | |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | ||
3d396eb1 AK |
1452 | static void netxen_watchdog(unsigned long v) |
1453 | { | |
1454 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1455 | |
1456 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1457 | } |
1458 | ||
a97342f9 DP |
1459 | void netxen_watchdog_task(struct work_struct *work) |
1460 | { | |
1461 | struct netxen_adapter *adapter = | |
1462 | container_of(work, struct netxen_adapter, watchdog_task); | |
1463 | ||
1464 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) | |
1465 | return; | |
1466 | ||
1467 | netxen_nic_handle_phy_intr(adapter); | |
1468 | ||
1469 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
1470 | } | |
1471 | ||
3d396eb1 AK |
1472 | static void netxen_tx_timeout(struct net_device *netdev) |
1473 | { | |
3176ff3e MT |
1474 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1475 | netdev_priv(netdev); | |
1476 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1477 | } |
1478 | ||
6d5aefb8 | 1479 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1480 | { |
4790654c | 1481 | struct netxen_adapter *adapter = |
3176ff3e | 1482 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1483 | |
1484 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1485 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1486 | |
ba53e6b4 DP |
1487 | netxen_nic_disable_int(adapter); |
1488 | napi_disable(&adapter->napi); | |
1489 | ||
6c80b18d | 1490 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1491 | |
1492 | napi_enable(&adapter->napi); | |
1493 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1494 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1495 | } |
1496 | ||
a97342f9 DP |
1497 | /* |
1498 | * netxen_nic_get_stats - Get System Network Statistics | |
1499 | * @netdev: network interface device structure | |
1500 | */ | |
1501 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) | |
1502 | { | |
1503 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1504 | struct net_device_stats *stats = &adapter->net_stats; | |
1505 | ||
1506 | memset(stats, 0, sizeof(*stats)); | |
1507 | ||
1508 | /* total packets received */ | |
1509 | stats->rx_packets = adapter->stats.no_rcv; | |
1510 | /* total packets transmitted */ | |
1511 | stats->tx_packets = adapter->stats.xmitedframes + | |
1512 | adapter->stats.xmitfinished; | |
1513 | /* total bytes received */ | |
1514 | stats->rx_bytes = adapter->stats.rxbytes; | |
1515 | /* total bytes transmitted */ | |
1516 | stats->tx_bytes = adapter->stats.txbytes; | |
1517 | /* bad packets received */ | |
1518 | stats->rx_errors = adapter->stats.rcvdbadskb; | |
1519 | /* packet transmit problems */ | |
1520 | stats->tx_errors = adapter->stats.nocmddescriptor; | |
1521 | /* no space in linux buffers */ | |
1522 | stats->rx_dropped = adapter->stats.rxdropped; | |
1523 | /* no space available in linux */ | |
1524 | stats->tx_dropped = adapter->stats.txdropped; | |
1525 | ||
1526 | return stats; | |
1527 | } | |
1528 | ||
05aaa02d DP |
1529 | static inline void |
1530 | netxen_handle_int(struct netxen_adapter *adapter) | |
3d396eb1 | 1531 | { |
2d1a3bbd | 1532 | netxen_nic_disable_int(adapter); |
05aaa02d | 1533 | napi_schedule(&adapter->napi); |
3d396eb1 AK |
1534 | } |
1535 | ||
e4c93c81 | 1536 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1537 | { |
1daec86a | 1538 | struct netxen_adapter *adapter = data; |
e01872af | 1539 | u32 our_int = 0; |
3d396eb1 | 1540 | |
3ce06a32 | 1541 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); |
05aaa02d DP |
1542 | /* not our interrupt */ |
1543 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1544 | return IRQ_NONE; | |
e01872af | 1545 | |
1546 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1547 | /* claim interrupt */ | |
3ce06a32 DP |
1548 | adapter->pci_write_normalize(adapter, CRB_INT_VECTOR, |
1549 | our_int & ~((u32)(0x80 << adapter->portnum))); | |
e01872af | 1550 | } |
1551 | ||
05aaa02d | 1552 | netxen_handle_int(adapter); |
3d396eb1 AK |
1553 | |
1554 | return IRQ_HANDLED; | |
1555 | } | |
1556 | ||
e4c93c81 | 1557 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d DP |
1558 | { |
1559 | struct netxen_adapter *adapter = data; | |
1560 | ||
1561 | netxen_handle_int(adapter); | |
1562 | return IRQ_HANDLED; | |
1563 | } | |
1564 | ||
bea3348e | 1565 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1566 | { |
bea3348e | 1567 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1568 | int tx_complete; |
3d396eb1 | 1569 | int ctx; |
bea3348e | 1570 | int work_done; |
3d396eb1 | 1571 | |
05aaa02d | 1572 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1573 | |
80922fbc | 1574 | work_done = 0; |
3d396eb1 AK |
1575 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1576 | /* | |
1577 | * Fairness issue. This will give undue weight to the | |
1578 | * receive context 0. | |
1579 | */ | |
1580 | ||
1581 | /* | |
1582 | * To avoid starvation, we give each of our receivers, | |
1583 | * a fraction of the quota. Sometimes, it might happen that we | |
1584 | * have enough quota to process every packet, but since all the | |
1585 | * packets are on one context, it gets only half of the quota, | |
1586 | * and ends up not processing it. | |
1587 | */ | |
bea3348e SH |
1588 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1589 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1590 | } |
1591 | ||
05aaa02d DP |
1592 | if ((work_done < budget) && tx_complete) { |
1593 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1594 | netxen_nic_enable_int(adapter); |
1595 | } | |
1596 | ||
bea3348e | 1597 | return work_done; |
3d396eb1 AK |
1598 | } |
1599 | ||
1600 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1601 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1602 | { | |
3176ff3e | 1603 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1604 | disable_irq(adapter->irq); |
1494a814 | 1605 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1606 | enable_irq(adapter->irq); |
1607 | } | |
1608 | #endif | |
3d396eb1 AK |
1609 | |
1610 | static struct pci_driver netxen_driver = { | |
1611 | .name = netxen_nic_driver_name, | |
1612 | .id_table = netxen_pci_tbl, | |
1613 | .probe = netxen_nic_probe, | |
1614 | .remove = __devexit_p(netxen_nic_remove) | |
1615 | }; | |
1616 | ||
1617 | /* Driver Registration on NetXen card */ | |
1618 | ||
1619 | static int __init netxen_init_module(void) | |
1620 | { | |
79ea13ce | 1621 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1622 | return -ENOMEM; |
1623 | ||
184231bd | 1624 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1625 | } |
1626 | ||
1627 | module_init(netxen_init_module); | |
1628 | ||
1629 | static void __exit netxen_exit_module(void) | |
1630 | { | |
3d396eb1 | 1631 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1632 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1633 | } |
1634 | ||
1635 | module_exit(netxen_exit_module); |