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 | 168 | adapter->pci_write_immediate(adapter, |
d71e1be8 DP |
169 | adapter->legacy_intr.tgt_status_reg, |
170 | 0xffffffff); | |
3ce06a32 DP |
171 | mask = adapter->pci_read_immediate(adapter, |
172 | ISR_INT_VECTOR); | |
4638aef1 SH |
173 | if (!(mask & 0x80)) |
174 | break; | |
175 | udelay(10); | |
176 | } while (--retries); | |
177 | ||
178 | if (!retries) { | |
d71e1be8 | 179 | printk(KERN_NOTICE "%s: Failed to disable interrupt\n", |
4638aef1 SH |
180 | netxen_nic_driver_name); |
181 | } | |
443be796 DP |
182 | } else { |
183 | if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { | |
3ce06a32 DP |
184 | adapter->pci_write_immediate(adapter, |
185 | msi_tgt_status[pci_fn], 0xffffffff); | |
443be796 | 186 | } |
4638aef1 | 187 | } |
4638aef1 SH |
188 | } |
189 | ||
190 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
191 | { | |
192 | u32 mask; | |
193 | ||
4638aef1 SH |
194 | if (adapter->intr_scheme != -1 && |
195 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
196 | switch (adapter->ahw.board_type) { | |
197 | case NETXEN_NIC_GBE: | |
198 | mask = 0x77b; | |
199 | break; | |
200 | case NETXEN_NIC_XGBE: | |
201 | mask = 0x77f; | |
202 | break; | |
203 | default: | |
204 | mask = 0x7ff; | |
205 | break; | |
206 | } | |
207 | ||
3ce06a32 | 208 | adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask); |
4638aef1 SH |
209 | } |
210 | ||
48bfd1e0 | 211 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1); |
4638aef1 | 212 | |
2956640d | 213 | if (!NETXEN_IS_MSI_FAMILY(adapter)) { |
4638aef1 | 214 | mask = 0xbff; |
d71e1be8 DP |
215 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) |
216 | adapter->pci_write_immediate(adapter, | |
217 | adapter->legacy_intr.tgt_mask_reg, mask); | |
218 | else | |
3ce06a32 DP |
219 | adapter->pci_write_normalize(adapter, |
220 | CRB_INT_VECTOR, 0); | |
4638aef1 | 221 | } |
4638aef1 SH |
222 | } |
223 | ||
2956640d DP |
224 | static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) |
225 | { | |
226 | struct pci_dev *pdev = adapter->pdev; | |
227 | int err; | |
228 | uint64_t mask; | |
229 | ||
230 | #ifdef CONFIG_IA64 | |
231 | adapter->dma_mask = DMA_32BIT_MASK; | |
232 | #else | |
233 | if (revision_id >= NX_P3_B0) { | |
234 | /* should go to DMA_64BIT_MASK */ | |
235 | adapter->dma_mask = DMA_39BIT_MASK; | |
236 | mask = DMA_39BIT_MASK; | |
237 | } else if (revision_id == NX_P3_A2) { | |
238 | adapter->dma_mask = DMA_39BIT_MASK; | |
239 | mask = DMA_39BIT_MASK; | |
240 | } else if (revision_id == NX_P2_C1) { | |
241 | adapter->dma_mask = DMA_35BIT_MASK; | |
242 | mask = DMA_35BIT_MASK; | |
243 | } else { | |
244 | adapter->dma_mask = DMA_32BIT_MASK; | |
245 | mask = DMA_32BIT_MASK; | |
246 | goto set_32_bit_mask; | |
247 | } | |
248 | ||
249 | /* | |
250 | * Consistent DMA mask is set to 32 bit because it cannot be set to | |
251 | * 35 bits. For P3 also leave it at 32 bits for now. Only the rings | |
252 | * come off this pool. | |
253 | */ | |
254 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
255 | pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) { | |
256 | adapter->pci_using_dac = 1; | |
257 | return 0; | |
258 | } | |
259 | #endif /* CONFIG_IA64 */ | |
260 | ||
261 | set_32_bit_mask: | |
262 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
263 | if (!err) | |
264 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
265 | if (err) { | |
266 | DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err); | |
267 | return err; | |
268 | } | |
269 | ||
270 | adapter->pci_using_dac = 0; | |
271 | return 0; | |
272 | } | |
273 | ||
274 | static void netxen_check_options(struct netxen_adapter *adapter) | |
275 | { | |
276 | switch (adapter->ahw.boardcfg.board_type) { | |
277 | case NETXEN_BRDTYPE_P3_HMEZ: | |
278 | case NETXEN_BRDTYPE_P3_XG_LOM: | |
279 | case NETXEN_BRDTYPE_P3_10G_CX4: | |
280 | case NETXEN_BRDTYPE_P3_10G_CX4_LP: | |
281 | case NETXEN_BRDTYPE_P3_IMEZ: | |
282 | case NETXEN_BRDTYPE_P3_10G_SFP_PLUS: | |
a70f9393 DP |
283 | case NETXEN_BRDTYPE_P3_10G_SFP_QT: |
284 | case NETXEN_BRDTYPE_P3_10G_SFP_CT: | |
2956640d DP |
285 | case NETXEN_BRDTYPE_P3_10G_XFP: |
286 | case NETXEN_BRDTYPE_P3_10000_BASE_T: | |
287 | adapter->msix_supported = !!use_msi_x; | |
288 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
289 | break; | |
290 | ||
291 | case NETXEN_BRDTYPE_P2_SB31_10G: | |
292 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: | |
293 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
294 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
295 | adapter->msix_supported = 0; | |
296 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
297 | break; | |
298 | ||
299 | case NETXEN_BRDTYPE_P3_REF_QG: | |
300 | case NETXEN_BRDTYPE_P3_4_GB: | |
301 | case NETXEN_BRDTYPE_P3_4_GB_MM: | |
a70f9393 DP |
302 | adapter->msix_supported = 0; |
303 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
304 | break; | |
305 | ||
2956640d DP |
306 | case NETXEN_BRDTYPE_P2_SB35_4G: |
307 | case NETXEN_BRDTYPE_P2_SB31_2G: | |
308 | adapter->msix_supported = 0; | |
309 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
310 | break; | |
311 | ||
312 | default: | |
313 | adapter->msix_supported = 0; | |
314 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
315 | ||
316 | printk(KERN_WARNING "Unknown board type(0x%x)\n", | |
317 | adapter->ahw.boardcfg.board_type); | |
318 | break; | |
319 | } | |
320 | ||
321 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
322 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
323 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
324 | ||
325 | adapter->max_possible_rss_rings = 1; | |
326 | return; | |
327 | } | |
328 | ||
329 | static int | |
330 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
331 | { | |
332 | int ret = 0; | |
333 | ||
334 | if (first_boot == 0x55555555) { | |
335 | /* This is the first boot after power up */ | |
336 | ||
337 | /* PCI bus master workaround */ | |
338 | adapter->hw_read_wx(adapter, | |
339 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
340 | if (!(first_boot & 0x4)) { | |
341 | first_boot |= 0x4; | |
342 | adapter->hw_write_wx(adapter, | |
343 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
344 | adapter->hw_read_wx(adapter, | |
345 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
346 | } | |
347 | ||
348 | /* This is the first boot after power up */ | |
349 | adapter->hw_read_wx(adapter, | |
350 | NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); | |
351 | if (first_boot != 0x80000f) { | |
352 | /* clear the register for future unloads/loads */ | |
353 | adapter->pci_write_normalize(adapter, | |
354 | NETXEN_CAM_RAM(0x1fc), 0); | |
355 | ret = -1; | |
356 | } | |
357 | ||
358 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
359 | /* Start P2 boot loader */ | |
360 | adapter->pci_write_normalize(adapter, | |
361 | NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
362 | adapter->pci_write_normalize(adapter, | |
363 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
364 | } | |
365 | } | |
366 | return ret; | |
367 | } | |
368 | ||
369 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
370 | { | |
371 | u32 val, data; | |
372 | ||
373 | val = adapter->ahw.boardcfg.board_type; | |
374 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || | |
375 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
376 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
377 | data = NETXEN_PORT_MODE_802_3_AP; | |
378 | adapter->hw_write_wx(adapter, | |
379 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
380 | } else if (port_mode == NETXEN_PORT_MODE_XG) { | |
381 | data = NETXEN_PORT_MODE_XG; | |
382 | adapter->hw_write_wx(adapter, | |
383 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
384 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { | |
385 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
386 | adapter->hw_write_wx(adapter, | |
387 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
388 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { | |
389 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
390 | adapter->hw_write_wx(adapter, | |
391 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
392 | } else { | |
393 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
394 | adapter->hw_write_wx(adapter, | |
395 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
396 | } | |
397 | ||
398 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && | |
399 | (wol_port_mode != NETXEN_PORT_MODE_XG) && | |
400 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && | |
401 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { | |
402 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; | |
403 | } | |
404 | adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, | |
405 | &wol_port_mode, 4); | |
406 | } | |
407 | } | |
408 | ||
409 | #define PCI_CAP_ID_GEN 0x10 | |
410 | ||
411 | static void netxen_pcie_strap_init(struct netxen_adapter *adapter) | |
412 | { | |
413 | u32 pdevfuncsave; | |
414 | u32 c8c9value = 0; | |
415 | u32 chicken = 0; | |
416 | u32 control = 0; | |
417 | int i, pos; | |
418 | struct pci_dev *pdev; | |
419 | ||
420 | pdev = pci_get_device(0x1166, 0x0140, NULL); | |
421 | if (pdev) { | |
422 | pci_dev_put(pdev); | |
423 | adapter->hw_read_wx(adapter, | |
424 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
425 | chicken |= 0x4000; | |
426 | adapter->hw_write_wx(adapter, | |
427 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
428 | } | |
429 | ||
430 | pdev = adapter->pdev; | |
431 | ||
432 | adapter->hw_read_wx(adapter, | |
433 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
434 | /* clear chicken3.25:24 */ | |
435 | chicken &= 0xFCFFFFFF; | |
436 | /* | |
437 | * if gen1 and B0, set F1020 - if gen 2, do nothing | |
438 | * if gen2 set to F1000 | |
439 | */ | |
440 | pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); | |
441 | if (pos == 0xC0) { | |
442 | pci_read_config_dword(pdev, pos + 0x10, &control); | |
443 | if ((control & 0x000F0000) != 0x00020000) { | |
444 | /* set chicken3.24 if gen1 */ | |
445 | chicken |= 0x01000000; | |
446 | } | |
447 | printk(KERN_INFO "%s Gen2 strapping detected\n", | |
448 | netxen_nic_driver_name); | |
449 | c8c9value = 0xF1000; | |
450 | } else { | |
451 | /* set chicken3.24 if gen1 */ | |
452 | chicken |= 0x01000000; | |
453 | printk(KERN_INFO "%s Gen1 strapping detected\n", | |
454 | netxen_nic_driver_name); | |
455 | if (adapter->ahw.revision_id == NX_P3_B0) | |
456 | c8c9value = 0xF1020; | |
457 | else | |
458 | c8c9value = 0; | |
459 | ||
460 | } | |
461 | adapter->hw_write_wx(adapter, | |
462 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
463 | ||
464 | if (!c8c9value) | |
465 | return; | |
466 | ||
467 | pdevfuncsave = pdev->devfn; | |
468 | if (pdevfuncsave & 0x07) | |
469 | return; | |
470 | ||
471 | for (i = 0; i < 8; i++) { | |
472 | pci_read_config_dword(pdev, pos + 8, &control); | |
473 | pci_read_config_dword(pdev, pos + 8, &control); | |
474 | pci_write_config_dword(pdev, pos + 8, c8c9value); | |
475 | pdev->devfn++; | |
476 | } | |
477 | pdev->devfn = pdevfuncsave; | |
478 | } | |
479 | ||
480 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) | |
481 | { | |
482 | u32 control; | |
483 | int pos; | |
484 | ||
485 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
486 | if (pos) { | |
487 | pci_read_config_dword(pdev, pos, &control); | |
488 | if (enable) | |
489 | control |= PCI_MSIX_FLAGS_ENABLE; | |
490 | else | |
491 | control = 0; | |
492 | pci_write_config_dword(pdev, pos, control); | |
493 | } | |
494 | } | |
495 | ||
496 | static void netxen_init_msix_entries(struct netxen_adapter *adapter) | |
497 | { | |
498 | int i; | |
499 | ||
500 | for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) | |
501 | adapter->msix_entries[i].entry = i; | |
502 | } | |
503 | ||
3d396eb1 AK |
504 | /* |
505 | * netxen_nic_probe() | |
506 | * | |
507 | * The Linux system will invoke this after identifying the vendor ID and | |
508 | * device Id in the pci_tbl supported by this module. | |
509 | * | |
510 | * A quad port card has one operational PCI config space, (function 0), | |
511 | * which is used to access all four ports. | |
512 | * | |
513 | * This routine will initialize the adapter, and setup the global parameters | |
514 | * along with the port's specific structure. | |
515 | */ | |
516 | static int __devinit | |
517 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
518 | { | |
519 | struct net_device *netdev = NULL; | |
520 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
521 | void __iomem *mem_ptr0 = NULL; |
522 | void __iomem *mem_ptr1 = NULL; | |
523 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
524 | unsigned long first_page_group_end; |
525 | unsigned long first_page_group_start; | |
526 | ||
cb8011ad | 527 | |
a608ab9c | 528 | u8 __iomem *db_ptr = NULL; |
2956640d DP |
529 | unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0; |
530 | int i = 0, err; | |
531 | int first_driver, first_boot; | |
f305f789 | 532 | __le64 mac_addr[FLASH_NUM_PORTS + 1]; |
6c80b18d | 533 | u32 val; |
3176ff3e | 534 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 535 | DECLARE_MAC_BUF(mac); |
2956640d DP |
536 | struct netxen_legacy_intr_set *legacy_intrp; |
537 | uint8_t revision_id; | |
3d396eb1 | 538 | |
dcd56fdb | 539 | if (pci_func_id == 0) |
2956640d | 540 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
6c80b18d | 541 | |
3176ff3e | 542 | if (pdev->class != 0x020000) { |
dcd56fdb | 543 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 544 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
545 | return -ENODEV; |
546 | } | |
2956640d | 547 | |
3d396eb1 AK |
548 | if ((err = pci_enable_device(pdev))) |
549 | return err; | |
2956640d | 550 | |
3d396eb1 AK |
551 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
552 | err = -ENODEV; | |
553 | goto err_out_disable_pdev; | |
554 | } | |
555 | ||
556 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
557 | goto err_out_disable_pdev; | |
558 | ||
559 | pci_set_master(pdev); | |
3176ff3e MT |
560 | |
561 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
562 | if(!netdev) { | |
563 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
564 | "device block.Check system memory resource" | |
565 | " usage.\n", netxen_nic_driver_name); | |
566 | goto err_out_free_res; | |
567 | } | |
568 | ||
3176ff3e MT |
569 | SET_NETDEV_DEV(netdev, &pdev->dev); |
570 | ||
571 | adapter = netdev->priv; | |
2956640d DP |
572 | adapter->netdev = netdev; |
573 | adapter->pdev = pdev; | |
13ba9c77 | 574 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
575 | |
576 | revision_id = pdev->revision; | |
577 | adapter->ahw.revision_id = revision_id; | |
578 | ||
579 | err = nx_set_dma_mask(adapter, revision_id); | |
580 | if (err) | |
581 | goto err_out_free_netdev; | |
582 | ||
3ce06a32 DP |
583 | rwlock_init(&adapter->adapter_lock); |
584 | adapter->ahw.qdr_sn_window = -1; | |
585 | adapter->ahw.ddr_mn_window = -1; | |
13ba9c77 | 586 | |
3d396eb1 AK |
587 | /* remap phys address */ |
588 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
589 | mem_len = pci_resource_len(pdev, 0); | |
3ce06a32 DP |
590 | pci_len0 = 0; |
591 | ||
592 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
593 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
594 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
595 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
596 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
597 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
598 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
599 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
600 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
3d396eb1 AK |
601 | |
602 | /* 128 Meg of memory */ | |
6c80b18d MT |
603 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
604 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
605 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
606 | SECOND_PAGE_GROUP_SIZE); | |
607 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
608 | THIRD_PAGE_GROUP_SIZE); | |
609 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
610 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
611 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
612 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
613 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
614 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
615 | first_page_group_start = 0; | |
616 | first_page_group_end = 0; | |
3ce06a32 DP |
617 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
618 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
619 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
620 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
621 | adapter->pci_write_immediate = | |
622 | netxen_nic_pci_write_immediate_2M; | |
623 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
624 | adapter->pci_write_normalize = | |
625 | netxen_nic_pci_write_normalize_2M; | |
626 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
627 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
628 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
629 | ||
630 | mem_ptr0 = ioremap(mem_base, mem_len); | |
631 | pci_len0 = mem_len; | |
632 | first_page_group_start = 0; | |
633 | first_page_group_end = 0; | |
634 | ||
635 | adapter->ahw.ddr_mn_window = 0; | |
636 | adapter->ahw.qdr_sn_window = 0; | |
637 | ||
638 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
639 | (pci_func_id * 0x20); | |
640 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
641 | if (pci_func_id < 4) | |
642 | adapter->ahw.ms_win_crb += (pci_func_id * 0x20); | |
643 | else | |
644 | adapter->ahw.ms_win_crb += | |
645 | 0xA0 + ((pci_func_id - 4) * 0x10); | |
6c80b18d | 646 | } else { |
4790654c | 647 | err = -EIO; |
6c80b18d MT |
648 | goto err_out_free_netdev; |
649 | } | |
cb8011ad | 650 | |
3ce06a32 | 651 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
cb8011ad | 652 | |
ed25ffa1 AK |
653 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
654 | db_len = pci_resource_len(pdev, 4); | |
655 | ||
656 | if (db_len == 0) { | |
657 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
2956640d | 658 | netxen_nic_driver_name); |
ed25ffa1 AK |
659 | err = -EIO; |
660 | goto err_out_iounmap; | |
661 | } | |
662 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
663 | db_len); | |
664 | ||
665 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 666 | if (!db_ptr) { |
ed25ffa1 | 667 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
2956640d | 668 | netxen_nic_driver_name); |
ed25ffa1 AK |
669 | err = -EIO; |
670 | goto err_out_iounmap; | |
3d396eb1 | 671 | } |
ed25ffa1 | 672 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 673 | |
6c80b18d | 674 | adapter->ahw.pci_base0 = mem_ptr0; |
3ce06a32 | 675 | adapter->ahw.pci_len0 = pci_len0; |
6c80b18d MT |
676 | adapter->ahw.first_page_group_start = first_page_group_start; |
677 | adapter->ahw.first_page_group_end = first_page_group_end; | |
678 | adapter->ahw.pci_base1 = mem_ptr1; | |
679 | adapter->ahw.pci_base2 = mem_ptr2; | |
680 | adapter->ahw.db_base = db_ptr; | |
681 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 682 | |
bea3348e | 683 | netif_napi_add(netdev, &adapter->napi, |
2956640d DP |
684 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); |
685 | ||
686 | if (revision_id >= NX_P3_B0) | |
687 | legacy_intrp = &legacy_intr[pci_func_id]; | |
688 | else | |
689 | legacy_intrp = &legacy_intr[0]; | |
690 | ||
691 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
692 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
693 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
694 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
bea3348e | 695 | |
2d1a3bbd | 696 | /* this will be read from FW later */ |
697 | adapter->intr_scheme = -1; | |
443be796 | 698 | adapter->msi_mode = -1; |
2d1a3bbd | 699 | |
700 | /* This will be reset for mezz cards */ | |
3176ff3e | 701 | adapter->portnum = pci_func_id; |
2d1a3bbd | 702 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 703 | adapter->rx_csum = 1; |
623621b0 | 704 | adapter->mc_enabled = 0; |
83821a07 | 705 | if (NX_IS_REVISION_P3(revision_id)) |
2956640d | 706 | adapter->max_mc_count = 38; |
83821a07 | 707 | else |
2956640d | 708 | adapter->max_mc_count = 16; |
3176ff3e MT |
709 | |
710 | netdev->open = netxen_nic_open; | |
711 | netdev->stop = netxen_nic_close; | |
712 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 713 | netdev->get_stats = netxen_nic_get_stats; |
c9fc891f DP |
714 | if (NX_IS_REVISION_P3(revision_id)) |
715 | netdev->set_multicast_list = netxen_p3_nic_set_multi; | |
716 | else | |
717 | netdev->set_multicast_list = netxen_p2_nic_set_multi; | |
3176ff3e MT |
718 | netdev->set_mac_address = netxen_nic_set_mac; |
719 | netdev->change_mtu = netxen_nic_change_mtu; | |
720 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 721 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
722 | |
723 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
724 | ||
725 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
726 | #ifdef CONFIG_NET_POLL_CONTROLLER |
727 | netdev->poll_controller = netxen_nic_poll_controller; | |
728 | #endif | |
729 | /* ScatterGather support */ | |
730 | netdev->features = NETIF_F_SG; | |
731 | netdev->features |= NETIF_F_IP_CSUM; | |
732 | netdev->features |= NETIF_F_TSO; | |
cd1f8160 DP |
733 | if (NX_IS_REVISION_P3(revision_id)) { |
734 | netdev->features |= NETIF_F_IPV6_CSUM; | |
2956640d | 735 | netdev->features |= NETIF_F_TSO6; |
cd1f8160 | 736 | } |
3176ff3e | 737 | |
2956640d | 738 | if (adapter->pci_using_dac) |
3176ff3e MT |
739 | netdev->features |= NETIF_F_HIGHDMA; |
740 | ||
6c80b18d MT |
741 | /* |
742 | * Set the CRB window to invalid. If any register in window 0 is | |
743 | * accessed it should set the window to 0 and then reset it to 1. | |
744 | */ | |
745 | adapter->curr_window = 255; | |
746 | ||
dcd56fdb DP |
747 | if (netxen_nic_get_board_info(adapter) != 0) { |
748 | printk("%s: Error getting board config info.\n", | |
2956640d | 749 | netxen_nic_driver_name); |
dcd56fdb DP |
750 | err = -EIO; |
751 | goto err_out_iounmap; | |
752 | } | |
6c80b18d | 753 | |
6c80b18d MT |
754 | netxen_initialize_adapter_ops(adapter); |
755 | ||
13ba9c77 | 756 | /* Mezz cards have PCI function 0,2,3 enabled */ |
dc515f2e DP |
757 | switch (adapter->ahw.boardcfg.board_type) { |
758 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
759 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
760 | if (pci_func_id >= 2) | |
13ba9c77 | 761 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
762 | break; |
763 | default: | |
764 | break; | |
765 | } | |
13ba9c77 | 766 | |
2956640d DP |
767 | /* |
768 | * This call will setup various max rx/tx counts. | |
769 | * It must be done before any buffer/ring allocations. | |
770 | */ | |
771 | netxen_check_options(adapter); | |
3d396eb1 | 772 | |
2956640d DP |
773 | first_driver = 0; |
774 | if (NX_IS_REVISION_P3(revision_id)) { | |
775 | if (adapter->ahw.pci_func == 0) | |
776 | first_driver = 1; | |
777 | } else { | |
778 | if (adapter->portnum == 0) | |
779 | first_driver = 1; | |
780 | } | |
3d396eb1 | 781 | |
2956640d DP |
782 | if (first_driver) { |
783 | first_boot = adapter->pci_read_normalize(adapter, | |
784 | NETXEN_CAM_RAM(0x1fc)); | |
3176ff3e | 785 | |
2956640d DP |
786 | err = netxen_check_hw_init(adapter, first_boot); |
787 | if (err) { | |
788 | printk(KERN_ERR "%s: error in init HW init sequence\n", | |
789 | netxen_nic_driver_name); | |
790 | goto err_out_iounmap; | |
3176ff3e | 791 | } |
3176ff3e | 792 | |
2956640d DP |
793 | if (NX_IS_REVISION_P3(revision_id)) |
794 | netxen_set_port_mode(adapter); | |
795 | ||
796 | if (first_boot != 0x55555555) { | |
3ce06a32 DP |
797 | adapter->pci_write_normalize(adapter, |
798 | CRB_CMDPEG_STATE, 0); | |
439b454e DP |
799 | netxen_pinit_from_rom(adapter, 0); |
800 | msleep(1); | |
801 | netxen_load_firmware(adapter); | |
2956640d DP |
802 | } |
803 | ||
804 | if (NX_IS_REVISION_P3(revision_id)) | |
805 | netxen_pcie_strap_init(adapter); | |
806 | ||
807 | if (NX_IS_REVISION_P2(revision_id)) { | |
623621b0 DP |
808 | |
809 | /* Initialize multicast addr pool owners */ | |
810 | val = 0x7654; | |
811 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
812 | val |= 0x0f000000; | |
813 | netxen_crb_writelit_adapter(adapter, | |
814 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
815 | ||
6c80b18d | 816 | } |
96acb6eb | 817 | |
2956640d DP |
818 | if ((first_boot == 0x55555555) && |
819 | (NX_IS_REVISION_P2(revision_id))) { | |
820 | /* Unlock the HW, prompting the boot sequence */ | |
821 | adapter->pci_write_normalize(adapter, | |
822 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
823 | } | |
824 | ||
825 | err = netxen_initialize_adapter_offload(adapter); | |
826 | if (err) | |
827 | goto err_out_iounmap; | |
6c80b18d MT |
828 | |
829 | /* | |
830 | * Tell the hardware our version number. | |
831 | */ | |
4790654c | 832 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
833 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
834 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
3ce06a32 | 835 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); |
3d396eb1 | 836 | |
3176ff3e MT |
837 | /* Handshake with the card before we register the devices. */ |
838 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
2956640d | 839 | |
2956640d DP |
840 | } /* first_driver */ |
841 | ||
842 | netxen_nic_flash_print(adapter); | |
3d396eb1 | 843 | |
d9e651bc DP |
844 | if (NX_IS_REVISION_P3(revision_id)) { |
845 | adapter->hw_read_wx(adapter, | |
846 | NETXEN_MIU_MN_CONTROL, &val, 4); | |
847 | adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; | |
848 | dev_info(&pdev->dev, "firmware running in %s mode\n", | |
849 | adapter->ahw.cut_through ? "cut through" : "legacy"); | |
850 | } | |
851 | ||
3d396eb1 | 852 | /* |
6c80b18d | 853 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 854 | */ |
dcd56fdb | 855 | adapter->physical_port = adapter->portnum; |
3ce06a32 | 856 | i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum)); |
6c80b18d | 857 | if (i != 0x55555555) |
3276fbad | 858 | adapter->physical_port = i; |
6c80b18d | 859 | |
2956640d DP |
860 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
861 | ||
862 | netxen_set_msix_bit(pdev, 0); | |
863 | ||
864 | if (NX_IS_REVISION_P3(revision_id)) { | |
865 | if ((mem_len != NETXEN_PCI_128MB_SIZE) && | |
866 | mem_len != NETXEN_PCI_2MB_SIZE) | |
867 | adapter->msix_supported = 0; | |
868 | } | |
869 | ||
870 | if (adapter->msix_supported) { | |
871 | ||
872 | netxen_init_msix_entries(adapter); | |
873 | ||
874 | if (pci_enable_msix(pdev, adapter->msix_entries, | |
875 | MSIX_ENTRIES_PER_ADAPTER)) | |
876 | goto request_msi; | |
877 | ||
878 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
879 | netxen_set_msix_bit(pdev, 1); | |
880 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
881 | ||
882 | } else { | |
883 | request_msi: | |
884 | if (use_msi && !pci_enable_msi(pdev)) { | |
885 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
886 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
887 | } else | |
888 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
889 | } | |
890 | ||
891 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
892 | netdev->irq = adapter->msix_entries[0].vector; | |
893 | else | |
894 | netdev->irq = pdev->irq; | |
895 | ||
896 | err = netxen_receive_peg_ready(adapter); | |
897 | if (err) | |
898 | goto err_out_disable_msi; | |
899 | ||
900 | init_timer(&adapter->watchdog_timer); | |
a97342f9 | 901 | adapter->ahw.linkup = 0; |
2956640d DP |
902 | adapter->watchdog_timer.function = &netxen_watchdog; |
903 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
904 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
905 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
906 | ||
907 | if (netxen_is_flash_supported(adapter) == 0 && | |
908 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) { | |
909 | unsigned char *p; | |
910 | ||
911 | p = (unsigned char *)&mac_addr[adapter->portnum]; | |
912 | netdev->dev_addr[0] = *(p + 5); | |
913 | netdev->dev_addr[1] = *(p + 4); | |
914 | netdev->dev_addr[2] = *(p + 3); | |
915 | netdev->dev_addr[3] = *(p + 2); | |
916 | netdev->dev_addr[4] = *(p + 1); | |
917 | netdev->dev_addr[5] = *(p + 0); | |
918 | ||
919 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
920 | netdev->addr_len); | |
921 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
922 | printk(KERN_ERR "%s: Bad MAC address %s.\n", | |
923 | netxen_nic_driver_name, | |
924 | print_mac(mac, netdev->dev_addr)); | |
925 | } else { | |
926 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
927 | } | |
928 | } | |
929 | ||
3176ff3e MT |
930 | netif_carrier_off(netdev); |
931 | netif_stop_queue(netdev); | |
932 | ||
6c80b18d MT |
933 | if ((err = register_netdev(netdev))) { |
934 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
935 | " aborting\n", netxen_nic_driver_name, | |
936 | adapter->portnum); | |
937 | err = -EIO; | |
2956640d | 938 | goto err_out_disable_msi; |
6c80b18d MT |
939 | } |
940 | ||
941 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 942 | |
2956640d DP |
943 | switch (adapter->ahw.board_type) { |
944 | case NETXEN_NIC_GBE: | |
945 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
946 | adapter->netdev->name); | |
947 | break; | |
948 | case NETXEN_NIC_XGBE: | |
949 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
950 | adapter->netdev->name); | |
951 | break; | |
3d396eb1 | 952 | } |
3d396eb1 | 953 | |
2956640d DP |
954 | return 0; |
955 | ||
956 | err_out_disable_msi: | |
957 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
958 | pci_disable_msix(pdev); | |
6c80b18d MT |
959 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
960 | pci_disable_msi(pdev); | |
961 | ||
2956640d DP |
962 | if (first_driver) |
963 | netxen_free_adapter_offload(adapter); | |
3d396eb1 | 964 | |
2956640d | 965 | err_out_iounmap: |
ed25ffa1 AK |
966 | if (db_ptr) |
967 | iounmap(db_ptr); | |
968 | ||
ed25ffa1 AK |
969 | if (mem_ptr0) |
970 | iounmap(mem_ptr0); | |
971 | if (mem_ptr1) | |
972 | iounmap(mem_ptr1); | |
973 | if (mem_ptr2) | |
974 | iounmap(mem_ptr2); | |
cb8011ad | 975 | |
6c80b18d MT |
976 | err_out_free_netdev: |
977 | free_netdev(netdev); | |
978 | ||
979 | err_out_free_res: | |
3d396eb1 | 980 | pci_release_regions(pdev); |
6c80b18d MT |
981 | |
982 | err_out_disable_pdev: | |
2956640d | 983 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
984 | pci_disable_device(pdev); |
985 | return err; | |
986 | } | |
987 | ||
988 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
989 | { | |
990 | struct netxen_adapter *adapter; | |
3176ff3e | 991 | struct net_device *netdev; |
3d396eb1 | 992 | |
6c80b18d | 993 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
994 | if (adapter == NULL) |
995 | return; | |
996 | ||
6c80b18d MT |
997 | netdev = adapter->netdev; |
998 | ||
96acb6eb DP |
999 | unregister_netdev(netdev); |
1000 | ||
96acb6eb | 1001 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
3d396eb1 | 1002 | netxen_free_hw_resources(adapter); |
2956640d | 1003 | netxen_free_sw_resources(adapter); |
96acb6eb | 1004 | } |
3d396eb1 | 1005 | |
439b454e DP |
1006 | if (adapter->portnum == 0) |
1007 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 1008 | |
3052246c | 1009 | if (adapter->irq) |
1010 | free_irq(adapter->irq, adapter); | |
1011 | ||
2956640d DP |
1012 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
1013 | pci_disable_msix(pdev); | |
3052246c | 1014 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
1015 | pci_disable_msi(pdev); | |
1016 | ||
6c80b18d MT |
1017 | iounmap(adapter->ahw.db_base); |
1018 | iounmap(adapter->ahw.pci_base0); | |
1019 | iounmap(adapter->ahw.pci_base1); | |
1020 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
1021 | |
1022 | pci_release_regions(pdev); | |
3052246c | 1023 | pci_disable_device(pdev); |
595e3fb8 MT |
1024 | pci_set_drvdata(pdev, NULL); |
1025 | ||
6c80b18d | 1026 | free_netdev(netdev); |
3d396eb1 AK |
1027 | } |
1028 | ||
1029 | /* | |
1030 | * Called when a network interface is made active | |
1031 | * @returns 0 on success, negative value on failure | |
1032 | */ | |
1033 | static int netxen_nic_open(struct net_device *netdev) | |
1034 | { | |
3176ff3e | 1035 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
1036 | int err = 0; |
1037 | int ctx, ring; | |
05aaa02d DP |
1038 | irq_handler_t handler; |
1039 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 | 1040 | |
dcd56fdb DP |
1041 | if (adapter->driver_mismatch) |
1042 | return -EIO; | |
1043 | ||
3d396eb1 AK |
1044 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
1045 | err = netxen_init_firmware(adapter); | |
1046 | if (err != 0) { | |
1047 | printk(KERN_ERR "Failed to init firmware\n"); | |
1048 | return -EIO; | |
1049 | } | |
3d396eb1 | 1050 | |
83821a07 DP |
1051 | if (adapter->fw_major < 4) |
1052 | adapter->max_rds_rings = 3; | |
1053 | else | |
1054 | adapter->max_rds_rings = 2; | |
1055 | ||
2956640d | 1056 | err = netxen_alloc_sw_resources(adapter); |
3d396eb1 | 1057 | if (err) { |
2956640d DP |
1058 | printk(KERN_ERR "%s: Error in setting sw resources\n", |
1059 | netdev->name); | |
3d396eb1 AK |
1060 | return err; |
1061 | } | |
2956640d DP |
1062 | |
1063 | netxen_nic_clear_stats(adapter); | |
1064 | ||
1065 | err = netxen_alloc_hw_resources(adapter); | |
1066 | if (err) { | |
1067 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
1068 | netdev->name); | |
1069 | goto err_out_free_sw; | |
1070 | } | |
1071 | ||
1072 | if (adapter->fw_major < 4) { | |
1073 | adapter->crb_addr_cmd_producer = | |
1074 | crb_cmd_producer[adapter->portnum]; | |
1075 | adapter->crb_addr_cmd_consumer = | |
1076 | crb_cmd_consumer[adapter->portnum]; | |
2956640d | 1077 | |
83821a07 DP |
1078 | netxen_nic_update_cmd_producer(adapter, 0); |
1079 | netxen_nic_update_cmd_consumer(adapter, 0); | |
1080 | } | |
2956640d | 1081 | |
3d396eb1 | 1082 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
48bfd1e0 | 1083 | for (ring = 0; ring < adapter->max_rds_rings; ring++) |
3d396eb1 | 1084 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 1085 | } |
2956640d | 1086 | if (NETXEN_IS_MSI_FAMILY(adapter)) |
05aaa02d DP |
1087 | handler = netxen_msi_intr; |
1088 | else { | |
1089 | flags |= IRQF_SHARED; | |
1090 | handler = netxen_intr; | |
1091 | } | |
2956640d | 1092 | adapter->irq = netdev->irq; |
05aaa02d DP |
1093 | err = request_irq(adapter->irq, handler, |
1094 | flags, netdev->name, adapter); | |
3d396eb1 AK |
1095 | if (err) { |
1096 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
2956640d | 1097 | goto err_out_free_hw; |
3d396eb1 | 1098 | } |
ed25ffa1 AK |
1099 | |
1100 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
1101 | } | |
2956640d | 1102 | |
3d396eb1 AK |
1103 | /* Done here again so that even if phantom sw overwrote it, |
1104 | * we set it */ | |
c9fc891f | 1105 | err = adapter->init_port(adapter, adapter->physical_port); |
2956640d | 1106 | if (err) { |
595e3fb8 MT |
1107 | printk(KERN_ERR "%s: Failed to initialize port %d\n", |
1108 | netxen_nic_driver_name, adapter->portnum); | |
2956640d | 1109 | goto err_out_free_irq; |
595e3fb8 | 1110 | } |
2956640d | 1111 | adapter->macaddr_set(adapter, netdev->dev_addr); |
595e3fb8 | 1112 | |
3176ff3e | 1113 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 | 1114 | |
c9fc891f | 1115 | netdev->set_multicast_list(netdev); |
9ad27643 | 1116 | if (adapter->set_mtu) |
c9fc891f | 1117 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 1118 | |
dcd56fdb | 1119 | mod_timer(&adapter->watchdog_timer, jiffies); |
05aaa02d DP |
1120 | |
1121 | napi_enable(&adapter->napi); | |
1122 | netxen_nic_enable_int(adapter); | |
1123 | ||
dcd56fdb | 1124 | netif_start_queue(netdev); |
3d396eb1 AK |
1125 | |
1126 | return 0; | |
2956640d DP |
1127 | |
1128 | err_out_free_irq: | |
1129 | free_irq(adapter->irq, adapter); | |
1130 | err_out_free_hw: | |
1131 | netxen_free_hw_resources(adapter); | |
1132 | err_out_free_sw: | |
1133 | netxen_free_sw_resources(adapter); | |
1134 | return err; | |
3d396eb1 AK |
1135 | } |
1136 | ||
1137 | /* | |
1138 | * netxen_nic_close - Disables a network interface entry point | |
1139 | */ | |
1140 | static int netxen_nic_close(struct net_device *netdev) | |
1141 | { | |
3176ff3e | 1142 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1143 | |
1144 | netif_carrier_off(netdev); | |
1145 | netif_stop_queue(netdev); | |
bea3348e | 1146 | napi_disable(&adapter->napi); |
3d396eb1 | 1147 | |
72b0a7a8 | 1148 | if (adapter->stop_port) |
1149 | adapter->stop_port(adapter); | |
1150 | ||
e01872af | 1151 | netxen_nic_disable_int(adapter); |
1152 | ||
2956640d DP |
1153 | netxen_release_tx_buffers(adapter); |
1154 | ||
96acb6eb DP |
1155 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
1156 | FLUSH_SCHEDULED_WORK(); | |
1157 | del_timer_sync(&adapter->watchdog_timer); | |
1158 | } | |
3d396eb1 AK |
1159 | |
1160 | return 0; | |
1161 | } | |
1162 | ||
cd1f8160 DP |
1163 | void netxen_tso_check(struct netxen_adapter *adapter, |
1164 | struct cmd_desc_type0 *desc, struct sk_buff *skb) | |
1165 | { | |
1166 | if (desc->mss) { | |
1167 | desc->total_hdr_length = (sizeof(struct ethhdr) + | |
1168 | ip_hdrlen(skb) + tcp_hdrlen(skb)); | |
1169 | ||
1170 | if ((NX_IS_REVISION_P3(adapter->ahw.revision_id)) && | |
1171 | (skb->protocol == htons(ETH_P_IPV6))) | |
1172 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO6); | |
1173 | else | |
1174 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO); | |
1175 | ||
1176 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1177 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) | |
1178 | netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT); | |
1179 | else if (ip_hdr(skb)->protocol == IPPROTO_UDP) | |
1180 | netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT); | |
1181 | else | |
1182 | return; | |
1183 | } | |
1184 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1185 | desc->ip_hdr_offset = skb_network_offset(skb); | |
1186 | } | |
1187 | ||
3d396eb1 AK |
1188 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1189 | { | |
3176ff3e | 1190 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1191 | struct netxen_hardware_context *hw = &adapter->ahw; |
1192 | unsigned int first_seg_len = skb->len - skb->data_len; | |
1193 | struct netxen_skb_frag *buffrag; | |
1194 | unsigned int i; | |
1195 | ||
ba53e6b4 | 1196 | u32 producer, consumer; |
3d396eb1 AK |
1197 | u32 saved_producer = 0; |
1198 | struct cmd_desc_type0 *hwdesc; | |
1199 | int k; | |
1200 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 | 1201 | int frag_count; |
3d396eb1 | 1202 | int no_of_desc; |
ba53e6b4 | 1203 | u32 num_txd = adapter->max_tx_desc_count; |
3d396eb1 | 1204 | |
3d396eb1 AK |
1205 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1206 | ||
3d396eb1 AK |
1207 | /* There 4 fragments per descriptor */ |
1208 | no_of_desc = (frag_count + 3) >> 2; | |
cd1f8160 | 1209 | if (netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) { |
cb8011ad AK |
1210 | if (skb_shinfo(skb)->gso_size > 0) { |
1211 | ||
3d396eb1 | 1212 | no_of_desc++; |
ab6a5bb6 | 1213 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 1214 | sizeof(struct ethhdr)) > |
ed25ffa1 | 1215 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
1216 | no_of_desc++; |
1217 | } | |
3d396eb1 AK |
1218 | } |
1219 | } | |
53a01e00 | 1220 | |
ba53e6b4 DP |
1221 | producer = adapter->cmd_producer; |
1222 | smp_mb(); | |
1223 | consumer = adapter->last_cmd_consumer; | |
1224 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
1225 | netif_stop_queue(netdev); | |
1226 | smp_mb(); | |
1227 | return NETDEV_TX_BUSY; | |
53a01e00 | 1228 | } |
3d396eb1 | 1229 | |
3d396eb1 | 1230 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
1231 | saved_producer = producer; |
1232 | hwdesc = &hw->cmd_desc_head[producer]; | |
1233 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1234 | /* Take skb->data itself */ | |
1235 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cd1f8160 DP |
1236 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1237 | skb_shinfo(skb)->gso_size > 0) { | |
a608ab9c | 1238 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 1239 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
1240 | } else { |
1241 | pbuf->mss = 0; | |
1242 | hwdesc->mss = 0; | |
1243 | } | |
3d396eb1 AK |
1244 | pbuf->total_length = skb->len; |
1245 | pbuf->skb = skb; | |
1246 | pbuf->cmd = TX_ETHER_PKT; | |
1247 | pbuf->frag_count = frag_count; | |
3176ff3e | 1248 | pbuf->port = adapter->portnum; |
3d396eb1 | 1249 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1250 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1251 | PCI_DMA_TODEVICE); |
1252 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1253 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1254 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1255 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1256 | |
3176ff3e | 1257 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1258 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1259 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1260 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1261 | ||
1262 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1263 | struct skb_frag_struct *frag; | |
1264 | int len, temp_len; | |
1265 | unsigned long offset; | |
1266 | dma_addr_t temp_dma; | |
1267 | ||
1268 | /* move to next desc. if there is a need */ | |
1269 | if ((i & 0x3) == 0) { | |
1270 | k = 0; | |
ba53e6b4 | 1271 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1272 | hwdesc = &hw->cmd_desc_head[producer]; |
1273 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1274 | pbuf = &adapter->cmd_buf_arr[producer]; |
1275 | pbuf->skb = NULL; | |
3d396eb1 AK |
1276 | } |
1277 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1278 | len = frag->size; | |
1279 | offset = frag->page_offset; | |
1280 | ||
1281 | temp_len = len; | |
3176ff3e | 1282 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1283 | len, PCI_DMA_TODEVICE); |
1284 | ||
1285 | buffrag++; | |
1286 | buffrag->dma = temp_dma; | |
1287 | buffrag->length = temp_len; | |
1288 | ||
3d396eb1 AK |
1289 | switch (k) { |
1290 | case 0: | |
1291 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1292 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1293 | break; | |
1294 | case 1: | |
1295 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1296 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1297 | break; | |
1298 | case 2: | |
1299 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1300 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1301 | break; | |
1302 | case 3: | |
a608ab9c | 1303 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1304 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1305 | break; | |
1306 | } | |
1307 | frag++; | |
1308 | } | |
ba53e6b4 | 1309 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1310 | |
1311 | /* might change opcode to TX_TCP_LSO */ | |
1312 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1313 | ||
1314 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1315 | * the descriptor ring | |
1316 | */ | |
ed25ffa1 AK |
1317 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1318 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1319 | int hdr_len, first_hdr_len, more_hdr; |
1320 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1321 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1322 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1323 | more_hdr = 1; |
1324 | } else { | |
1325 | first_hdr_len = hdr_len; | |
1326 | more_hdr = 0; | |
1327 | } | |
1328 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1329 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1330 | pbuf = &adapter->cmd_buf_arr[producer]; |
1331 | pbuf->skb = NULL; | |
3d396eb1 AK |
1332 | |
1333 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1334 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1335 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1336 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1337 | |
1338 | if (more_hdr) { | |
1339 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1340 | pbuf = &adapter->cmd_buf_arr[producer]; |
1341 | pbuf->skb = NULL; | |
3d396eb1 AK |
1342 | /* copy the next 64 bytes - should be enough except |
1343 | * for pathological case | |
1344 | */ | |
d626f62b ACM |
1345 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1346 | hwdesc, | |
1347 | (hdr_len - | |
1348 | first_hdr_len)); | |
ba53e6b4 | 1349 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1350 | } |
1351 | } | |
6c80b18d | 1352 | |
ba53e6b4 | 1353 | adapter->cmd_producer = producer; |
5dc16268 | 1354 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1355 | |
ba53e6b4 | 1356 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1357 | |
ba53e6b4 | 1358 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1359 | netdev->trans_start = jiffies; |
1360 | ||
3d396eb1 AK |
1361 | return NETDEV_TX_OK; |
1362 | } | |
1363 | ||
a97342f9 DP |
1364 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1365 | { | |
1366 | struct net_device *netdev = adapter->netdev; | |
1367 | uint32_t temp, temp_state, temp_val; | |
1368 | int rv = 0; | |
1369 | ||
1370 | temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE); | |
1371 | ||
1372 | temp_state = nx_get_temp_state(temp); | |
1373 | temp_val = nx_get_temp_val(temp); | |
1374 | ||
1375 | if (temp_state == NX_TEMP_PANIC) { | |
1376 | printk(KERN_ALERT | |
1377 | "%s: Device temperature %d degrees C exceeds" | |
1378 | " maximum allowed. Hardware has been shut down.\n", | |
1379 | netxen_nic_driver_name, temp_val); | |
1380 | ||
1381 | netif_carrier_off(netdev); | |
1382 | netif_stop_queue(netdev); | |
1383 | rv = 1; | |
1384 | } else if (temp_state == NX_TEMP_WARN) { | |
1385 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1386 | printk(KERN_ALERT | |
1387 | "%s: Device temperature %d degrees C " | |
1388 | "exceeds operating range." | |
1389 | " Immediate action needed.\n", | |
1390 | netxen_nic_driver_name, temp_val); | |
1391 | } | |
1392 | } else { | |
1393 | if (adapter->temp == NX_TEMP_WARN) { | |
1394 | printk(KERN_INFO | |
1395 | "%s: Device temperature is now %d degrees C" | |
1396 | " in normal range.\n", netxen_nic_driver_name, | |
1397 | temp_val); | |
1398 | } | |
1399 | } | |
1400 | adapter->temp = temp_state; | |
1401 | return rv; | |
1402 | } | |
1403 | ||
1404 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) | |
1405 | { | |
1406 | struct net_device *netdev = adapter->netdev; | |
1407 | u32 val, port, linkup; | |
1408 | ||
1409 | port = adapter->physical_port; | |
1410 | ||
24a7a455 DP |
1411 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1412 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); | |
1413 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); | |
1414 | linkup = (val == XG_LINK_UP_P3); | |
c9fc891f | 1415 | } else { |
24a7a455 DP |
1416 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); |
1417 | if (adapter->ahw.board_type == NETXEN_NIC_GBE) | |
1418 | linkup = (val >> port) & 1; | |
1419 | else { | |
c9fc891f DP |
1420 | val = (val >> port*8) & 0xff; |
1421 | linkup = (val == XG_LINK_UP); | |
c9fc891f | 1422 | } |
a97342f9 DP |
1423 | } |
1424 | ||
1425 | if (adapter->ahw.linkup && !linkup) { | |
1426 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1427 | netxen_nic_driver_name, netdev->name); | |
1428 | adapter->ahw.linkup = 0; | |
1429 | if (netif_running(netdev)) { | |
1430 | netif_carrier_off(netdev); | |
1431 | netif_stop_queue(netdev); | |
1432 | } | |
1433 | } else if (!adapter->ahw.linkup && linkup) { | |
1434 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1435 | netxen_nic_driver_name, netdev->name); | |
1436 | adapter->ahw.linkup = 1; | |
1437 | if (netif_running(netdev)) { | |
1438 | netif_carrier_on(netdev); | |
1439 | netif_wake_queue(netdev); | |
1440 | } | |
1441 | } | |
1442 | } | |
1443 | ||
3d396eb1 AK |
1444 | static void netxen_watchdog(unsigned long v) |
1445 | { | |
1446 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1447 | |
1448 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1449 | } |
1450 | ||
a97342f9 DP |
1451 | void netxen_watchdog_task(struct work_struct *work) |
1452 | { | |
1453 | struct netxen_adapter *adapter = | |
1454 | container_of(work, struct netxen_adapter, watchdog_task); | |
1455 | ||
1456 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) | |
1457 | return; | |
1458 | ||
1459 | netxen_nic_handle_phy_intr(adapter); | |
1460 | ||
1461 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
1462 | } | |
1463 | ||
3d396eb1 AK |
1464 | static void netxen_tx_timeout(struct net_device *netdev) |
1465 | { | |
3176ff3e MT |
1466 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1467 | netdev_priv(netdev); | |
1468 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1469 | } |
1470 | ||
6d5aefb8 | 1471 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1472 | { |
4790654c | 1473 | struct netxen_adapter *adapter = |
3176ff3e | 1474 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1475 | |
1476 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1477 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1478 | |
ba53e6b4 DP |
1479 | netxen_nic_disable_int(adapter); |
1480 | napi_disable(&adapter->napi); | |
1481 | ||
6c80b18d | 1482 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1483 | |
1484 | napi_enable(&adapter->napi); | |
1485 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1486 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1487 | } |
1488 | ||
a97342f9 DP |
1489 | /* |
1490 | * netxen_nic_get_stats - Get System Network Statistics | |
1491 | * @netdev: network interface device structure | |
1492 | */ | |
1493 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) | |
1494 | { | |
1495 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1496 | struct net_device_stats *stats = &adapter->net_stats; | |
1497 | ||
1498 | memset(stats, 0, sizeof(*stats)); | |
1499 | ||
1500 | /* total packets received */ | |
1501 | stats->rx_packets = adapter->stats.no_rcv; | |
1502 | /* total packets transmitted */ | |
1503 | stats->tx_packets = adapter->stats.xmitedframes + | |
1504 | adapter->stats.xmitfinished; | |
1505 | /* total bytes received */ | |
1506 | stats->rx_bytes = adapter->stats.rxbytes; | |
1507 | /* total bytes transmitted */ | |
1508 | stats->tx_bytes = adapter->stats.txbytes; | |
1509 | /* bad packets received */ | |
1510 | stats->rx_errors = adapter->stats.rcvdbadskb; | |
1511 | /* packet transmit problems */ | |
1512 | stats->tx_errors = adapter->stats.nocmddescriptor; | |
1513 | /* no space in linux buffers */ | |
1514 | stats->rx_dropped = adapter->stats.rxdropped; | |
1515 | /* no space available in linux */ | |
1516 | stats->tx_dropped = adapter->stats.txdropped; | |
1517 | ||
1518 | return stats; | |
1519 | } | |
1520 | ||
05aaa02d DP |
1521 | static inline void |
1522 | netxen_handle_int(struct netxen_adapter *adapter) | |
3d396eb1 | 1523 | { |
2d1a3bbd | 1524 | netxen_nic_disable_int(adapter); |
05aaa02d | 1525 | napi_schedule(&adapter->napi); |
3d396eb1 AK |
1526 | } |
1527 | ||
e4c93c81 | 1528 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1529 | { |
1daec86a | 1530 | struct netxen_adapter *adapter = data; |
e01872af | 1531 | u32 our_int = 0; |
3d396eb1 | 1532 | |
d71e1be8 DP |
1533 | u32 status = 0; |
1534 | ||
1535 | status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1536 | ||
1537 | if (!(status & adapter->legacy_intr.int_vec_bit)) | |
05aaa02d | 1538 | return IRQ_NONE; |
e01872af | 1539 | |
d71e1be8 DP |
1540 | if (adapter->ahw.revision_id >= NX_P3_B1) { |
1541 | /* check interrupt state machine, to be sure */ | |
1542 | status = adapter->pci_read_immediate(adapter, | |
1543 | ISR_INT_STATE_REG); | |
1544 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1545 | return IRQ_NONE; | |
1546 | ||
1547 | } else if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
1548 | ||
1549 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); | |
1550 | /* not our interrupt */ | |
1551 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1552 | return IRQ_NONE; | |
1553 | ||
1554 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1555 | /* claim interrupt */ | |
1556 | adapter->pci_write_normalize(adapter, | |
1557 | CRB_INT_VECTOR, | |
3ce06a32 | 1558 | our_int & ~((u32)(0x80 << adapter->portnum))); |
d71e1be8 | 1559 | } |
e01872af | 1560 | } |
1561 | ||
05aaa02d | 1562 | netxen_handle_int(adapter); |
3d396eb1 AK |
1563 | |
1564 | return IRQ_HANDLED; | |
1565 | } | |
1566 | ||
e4c93c81 | 1567 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d DP |
1568 | { |
1569 | struct netxen_adapter *adapter = data; | |
1570 | ||
1571 | netxen_handle_int(adapter); | |
1572 | return IRQ_HANDLED; | |
1573 | } | |
1574 | ||
bea3348e | 1575 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1576 | { |
bea3348e | 1577 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1578 | int tx_complete; |
3d396eb1 | 1579 | int ctx; |
bea3348e | 1580 | int work_done; |
3d396eb1 | 1581 | |
05aaa02d | 1582 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1583 | |
80922fbc | 1584 | work_done = 0; |
3d396eb1 AK |
1585 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1586 | /* | |
1587 | * Fairness issue. This will give undue weight to the | |
1588 | * receive context 0. | |
1589 | */ | |
1590 | ||
1591 | /* | |
1592 | * To avoid starvation, we give each of our receivers, | |
1593 | * a fraction of the quota. Sometimes, it might happen that we | |
1594 | * have enough quota to process every packet, but since all the | |
1595 | * packets are on one context, it gets only half of the quota, | |
1596 | * and ends up not processing it. | |
1597 | */ | |
bea3348e SH |
1598 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1599 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1600 | } |
1601 | ||
05aaa02d DP |
1602 | if ((work_done < budget) && tx_complete) { |
1603 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1604 | netxen_nic_enable_int(adapter); |
1605 | } | |
1606 | ||
bea3348e | 1607 | return work_done; |
3d396eb1 AK |
1608 | } |
1609 | ||
1610 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1611 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1612 | { | |
3176ff3e | 1613 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1614 | disable_irq(adapter->irq); |
1494a814 | 1615 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1616 | enable_irq(adapter->irq); |
1617 | } | |
1618 | #endif | |
3d396eb1 AK |
1619 | |
1620 | static struct pci_driver netxen_driver = { | |
1621 | .name = netxen_nic_driver_name, | |
1622 | .id_table = netxen_pci_tbl, | |
1623 | .probe = netxen_nic_probe, | |
1624 | .remove = __devexit_p(netxen_nic_remove) | |
1625 | }; | |
1626 | ||
1627 | /* Driver Registration on NetXen card */ | |
1628 | ||
1629 | static int __init netxen_init_module(void) | |
1630 | { | |
79ea13ce | 1631 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1632 | return -ENOMEM; |
1633 | ||
184231bd | 1634 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1635 | } |
1636 | ||
1637 | module_init(netxen_init_module); | |
1638 | ||
1639 | static void __exit netxen_exit_module(void) | |
1640 | { | |
3d396eb1 | 1641 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1642 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1643 | } |
1644 | ||
1645 | module_exit(netxen_exit_module); |