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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 | ||
092bc571 | 152 | static inline void netxen_nic_disable_int(struct netxen_adapter *adapter) |
4638aef1 | 153 | { |
092bc571 | 154 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0); |
4638aef1 SH |
155 | } |
156 | ||
092bc571 | 157 | static inline void netxen_nic_enable_int(struct netxen_adapter *adapter) |
4638aef1 | 158 | { |
48bfd1e0 | 159 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1); |
4638aef1 | 160 | |
092bc571 DP |
161 | if (!NETXEN_IS_MSI_FAMILY(adapter)) |
162 | adapter->pci_write_immediate(adapter, | |
163 | adapter->legacy_intr.tgt_mask_reg, 0xfbff); | |
4638aef1 SH |
164 | } |
165 | ||
2956640d DP |
166 | static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) |
167 | { | |
168 | struct pci_dev *pdev = adapter->pdev; | |
169 | int err; | |
170 | uint64_t mask; | |
171 | ||
172 | #ifdef CONFIG_IA64 | |
173 | adapter->dma_mask = DMA_32BIT_MASK; | |
174 | #else | |
175 | if (revision_id >= NX_P3_B0) { | |
176 | /* should go to DMA_64BIT_MASK */ | |
177 | adapter->dma_mask = DMA_39BIT_MASK; | |
178 | mask = DMA_39BIT_MASK; | |
179 | } else if (revision_id == NX_P3_A2) { | |
180 | adapter->dma_mask = DMA_39BIT_MASK; | |
181 | mask = DMA_39BIT_MASK; | |
182 | } else if (revision_id == NX_P2_C1) { | |
183 | adapter->dma_mask = DMA_35BIT_MASK; | |
184 | mask = DMA_35BIT_MASK; | |
185 | } else { | |
186 | adapter->dma_mask = DMA_32BIT_MASK; | |
187 | mask = DMA_32BIT_MASK; | |
188 | goto set_32_bit_mask; | |
189 | } | |
190 | ||
191 | /* | |
192 | * Consistent DMA mask is set to 32 bit because it cannot be set to | |
193 | * 35 bits. For P3 also leave it at 32 bits for now. Only the rings | |
194 | * come off this pool. | |
195 | */ | |
196 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
197 | pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) { | |
198 | adapter->pci_using_dac = 1; | |
199 | return 0; | |
200 | } | |
201 | #endif /* CONFIG_IA64 */ | |
202 | ||
203 | set_32_bit_mask: | |
204 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
205 | if (!err) | |
206 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
207 | if (err) { | |
208 | DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err); | |
209 | return err; | |
210 | } | |
211 | ||
212 | adapter->pci_using_dac = 0; | |
213 | return 0; | |
214 | } | |
215 | ||
216 | static void netxen_check_options(struct netxen_adapter *adapter) | |
217 | { | |
218 | switch (adapter->ahw.boardcfg.board_type) { | |
219 | case NETXEN_BRDTYPE_P3_HMEZ: | |
220 | case NETXEN_BRDTYPE_P3_XG_LOM: | |
221 | case NETXEN_BRDTYPE_P3_10G_CX4: | |
222 | case NETXEN_BRDTYPE_P3_10G_CX4_LP: | |
223 | case NETXEN_BRDTYPE_P3_IMEZ: | |
224 | case NETXEN_BRDTYPE_P3_10G_SFP_PLUS: | |
a70f9393 DP |
225 | case NETXEN_BRDTYPE_P3_10G_SFP_QT: |
226 | case NETXEN_BRDTYPE_P3_10G_SFP_CT: | |
2956640d DP |
227 | case NETXEN_BRDTYPE_P3_10G_XFP: |
228 | case NETXEN_BRDTYPE_P3_10000_BASE_T: | |
229 | adapter->msix_supported = !!use_msi_x; | |
230 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
231 | break; | |
232 | ||
233 | case NETXEN_BRDTYPE_P2_SB31_10G: | |
234 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: | |
235 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
236 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
237 | adapter->msix_supported = 0; | |
238 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
239 | break; | |
240 | ||
241 | case NETXEN_BRDTYPE_P3_REF_QG: | |
242 | case NETXEN_BRDTYPE_P3_4_GB: | |
243 | case NETXEN_BRDTYPE_P3_4_GB_MM: | |
a70f9393 DP |
244 | adapter->msix_supported = 0; |
245 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
246 | break; | |
247 | ||
2956640d DP |
248 | case NETXEN_BRDTYPE_P2_SB35_4G: |
249 | case NETXEN_BRDTYPE_P2_SB31_2G: | |
250 | adapter->msix_supported = 0; | |
251 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
252 | break; | |
253 | ||
254 | default: | |
255 | adapter->msix_supported = 0; | |
256 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
257 | ||
258 | printk(KERN_WARNING "Unknown board type(0x%x)\n", | |
259 | adapter->ahw.boardcfg.board_type); | |
260 | break; | |
261 | } | |
262 | ||
263 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
264 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
265 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
266 | ||
267 | adapter->max_possible_rss_rings = 1; | |
268 | return; | |
269 | } | |
270 | ||
271 | static int | |
272 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
273 | { | |
274 | int ret = 0; | |
275 | ||
276 | if (first_boot == 0x55555555) { | |
277 | /* This is the first boot after power up */ | |
278 | ||
279 | /* PCI bus master workaround */ | |
280 | adapter->hw_read_wx(adapter, | |
281 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
282 | if (!(first_boot & 0x4)) { | |
283 | first_boot |= 0x4; | |
284 | adapter->hw_write_wx(adapter, | |
285 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
286 | adapter->hw_read_wx(adapter, | |
287 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
288 | } | |
289 | ||
290 | /* This is the first boot after power up */ | |
291 | adapter->hw_read_wx(adapter, | |
292 | NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); | |
293 | if (first_boot != 0x80000f) { | |
294 | /* clear the register for future unloads/loads */ | |
295 | adapter->pci_write_normalize(adapter, | |
296 | NETXEN_CAM_RAM(0x1fc), 0); | |
297 | ret = -1; | |
298 | } | |
299 | ||
300 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
301 | /* Start P2 boot loader */ | |
302 | adapter->pci_write_normalize(adapter, | |
303 | NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
304 | adapter->pci_write_normalize(adapter, | |
305 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
306 | } | |
307 | } | |
308 | return ret; | |
309 | } | |
310 | ||
311 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
312 | { | |
313 | u32 val, data; | |
314 | ||
315 | val = adapter->ahw.boardcfg.board_type; | |
316 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || | |
317 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
318 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
319 | data = NETXEN_PORT_MODE_802_3_AP; | |
320 | adapter->hw_write_wx(adapter, | |
321 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
322 | } else if (port_mode == NETXEN_PORT_MODE_XG) { | |
323 | data = NETXEN_PORT_MODE_XG; | |
324 | adapter->hw_write_wx(adapter, | |
325 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
326 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { | |
327 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
328 | adapter->hw_write_wx(adapter, | |
329 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
330 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { | |
331 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
332 | adapter->hw_write_wx(adapter, | |
333 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
334 | } else { | |
335 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
336 | adapter->hw_write_wx(adapter, | |
337 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
338 | } | |
339 | ||
340 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && | |
341 | (wol_port_mode != NETXEN_PORT_MODE_XG) && | |
342 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && | |
343 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { | |
344 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; | |
345 | } | |
346 | adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, | |
347 | &wol_port_mode, 4); | |
348 | } | |
349 | } | |
350 | ||
351 | #define PCI_CAP_ID_GEN 0x10 | |
352 | ||
353 | static void netxen_pcie_strap_init(struct netxen_adapter *adapter) | |
354 | { | |
355 | u32 pdevfuncsave; | |
356 | u32 c8c9value = 0; | |
357 | u32 chicken = 0; | |
358 | u32 control = 0; | |
359 | int i, pos; | |
360 | struct pci_dev *pdev; | |
361 | ||
362 | pdev = pci_get_device(0x1166, 0x0140, NULL); | |
363 | if (pdev) { | |
364 | pci_dev_put(pdev); | |
365 | adapter->hw_read_wx(adapter, | |
366 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
367 | chicken |= 0x4000; | |
368 | adapter->hw_write_wx(adapter, | |
369 | NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4); | |
370 | } | |
371 | ||
372 | pdev = adapter->pdev; | |
373 | ||
374 | adapter->hw_read_wx(adapter, | |
375 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
376 | /* clear chicken3.25:24 */ | |
377 | chicken &= 0xFCFFFFFF; | |
378 | /* | |
379 | * if gen1 and B0, set F1020 - if gen 2, do nothing | |
380 | * if gen2 set to F1000 | |
381 | */ | |
382 | pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); | |
383 | if (pos == 0xC0) { | |
384 | pci_read_config_dword(pdev, pos + 0x10, &control); | |
385 | if ((control & 0x000F0000) != 0x00020000) { | |
386 | /* set chicken3.24 if gen1 */ | |
387 | chicken |= 0x01000000; | |
388 | } | |
389 | printk(KERN_INFO "%s Gen2 strapping detected\n", | |
390 | netxen_nic_driver_name); | |
391 | c8c9value = 0xF1000; | |
392 | } else { | |
393 | /* set chicken3.24 if gen1 */ | |
394 | chicken |= 0x01000000; | |
395 | printk(KERN_INFO "%s Gen1 strapping detected\n", | |
396 | netxen_nic_driver_name); | |
397 | if (adapter->ahw.revision_id == NX_P3_B0) | |
398 | c8c9value = 0xF1020; | |
399 | else | |
400 | c8c9value = 0; | |
401 | ||
402 | } | |
403 | adapter->hw_write_wx(adapter, | |
404 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
405 | ||
406 | if (!c8c9value) | |
407 | return; | |
408 | ||
409 | pdevfuncsave = pdev->devfn; | |
410 | if (pdevfuncsave & 0x07) | |
411 | return; | |
412 | ||
413 | for (i = 0; i < 8; i++) { | |
414 | pci_read_config_dword(pdev, pos + 8, &control); | |
415 | pci_read_config_dword(pdev, pos + 8, &control); | |
416 | pci_write_config_dword(pdev, pos + 8, c8c9value); | |
417 | pdev->devfn++; | |
418 | } | |
419 | pdev->devfn = pdevfuncsave; | |
420 | } | |
421 | ||
422 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) | |
423 | { | |
424 | u32 control; | |
425 | int pos; | |
426 | ||
427 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
428 | if (pos) { | |
429 | pci_read_config_dword(pdev, pos, &control); | |
430 | if (enable) | |
431 | control |= PCI_MSIX_FLAGS_ENABLE; | |
432 | else | |
433 | control = 0; | |
434 | pci_write_config_dword(pdev, pos, control); | |
435 | } | |
436 | } | |
437 | ||
438 | static void netxen_init_msix_entries(struct netxen_adapter *adapter) | |
439 | { | |
440 | int i; | |
441 | ||
442 | for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) | |
443 | adapter->msix_entries[i].entry = i; | |
444 | } | |
445 | ||
9dc28efe DP |
446 | static int |
447 | netxen_read_mac_addr(struct netxen_adapter *adapter) | |
448 | { | |
449 | int i; | |
450 | unsigned char *p; | |
451 | __le64 mac_addr; | |
452 | DECLARE_MAC_BUF(mac); | |
453 | struct net_device *netdev = adapter->netdev; | |
454 | struct pci_dev *pdev = adapter->pdev; | |
455 | ||
456 | if (netxen_is_flash_supported(adapter) != 0) | |
457 | return -EIO; | |
458 | ||
459 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
460 | if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) | |
461 | return -EIO; | |
462 | } else { | |
463 | if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) | |
464 | return -EIO; | |
465 | } | |
466 | ||
467 | p = (unsigned char *)&mac_addr; | |
468 | for (i = 0; i < 6; i++) | |
469 | netdev->dev_addr[i] = *(p + 5 - i); | |
470 | ||
471 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
472 | ||
473 | /* set station address */ | |
474 | ||
475 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
476 | dev_warn(&pdev->dev, "Bad MAC address %s.\n", | |
477 | print_mac(mac, netdev->dev_addr)); | |
478 | } else | |
479 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
3d396eb1 AK |
484 | /* |
485 | * netxen_nic_probe() | |
486 | * | |
487 | * The Linux system will invoke this after identifying the vendor ID and | |
488 | * device Id in the pci_tbl supported by this module. | |
489 | * | |
490 | * A quad port card has one operational PCI config space, (function 0), | |
491 | * which is used to access all four ports. | |
492 | * | |
493 | * This routine will initialize the adapter, and setup the global parameters | |
494 | * along with the port's specific structure. | |
495 | */ | |
496 | static int __devinit | |
497 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
498 | { | |
499 | struct net_device *netdev = NULL; | |
500 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
501 | void __iomem *mem_ptr0 = NULL; |
502 | void __iomem *mem_ptr1 = NULL; | |
503 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
504 | unsigned long first_page_group_end; |
505 | unsigned long first_page_group_start; | |
506 | ||
cb8011ad | 507 | |
a608ab9c | 508 | u8 __iomem *db_ptr = NULL; |
2956640d DP |
509 | unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0; |
510 | int i = 0, err; | |
511 | int first_driver, first_boot; | |
6c80b18d | 512 | u32 val; |
3176ff3e | 513 | int pci_func_id = PCI_FUNC(pdev->devfn); |
2956640d DP |
514 | struct netxen_legacy_intr_set *legacy_intrp; |
515 | uint8_t revision_id; | |
3d396eb1 | 516 | |
dcd56fdb | 517 | if (pci_func_id == 0) |
2956640d | 518 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
6c80b18d | 519 | |
3176ff3e | 520 | if (pdev->class != 0x020000) { |
dcd56fdb | 521 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 522 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
523 | return -ENODEV; |
524 | } | |
2956640d | 525 | |
3d396eb1 AK |
526 | if ((err = pci_enable_device(pdev))) |
527 | return err; | |
2956640d | 528 | |
3d396eb1 AK |
529 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
530 | err = -ENODEV; | |
531 | goto err_out_disable_pdev; | |
532 | } | |
533 | ||
534 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
535 | goto err_out_disable_pdev; | |
536 | ||
537 | pci_set_master(pdev); | |
3176ff3e MT |
538 | |
539 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
540 | if(!netdev) { | |
541 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
542 | "device block.Check system memory resource" | |
543 | " usage.\n", netxen_nic_driver_name); | |
544 | goto err_out_free_res; | |
545 | } | |
546 | ||
3176ff3e MT |
547 | SET_NETDEV_DEV(netdev, &pdev->dev); |
548 | ||
549 | adapter = netdev->priv; | |
2956640d DP |
550 | adapter->netdev = netdev; |
551 | adapter->pdev = pdev; | |
13ba9c77 | 552 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
553 | |
554 | revision_id = pdev->revision; | |
555 | adapter->ahw.revision_id = revision_id; | |
556 | ||
557 | err = nx_set_dma_mask(adapter, revision_id); | |
558 | if (err) | |
559 | goto err_out_free_netdev; | |
560 | ||
3ce06a32 DP |
561 | rwlock_init(&adapter->adapter_lock); |
562 | adapter->ahw.qdr_sn_window = -1; | |
563 | adapter->ahw.ddr_mn_window = -1; | |
13ba9c77 | 564 | |
3d396eb1 AK |
565 | /* remap phys address */ |
566 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
567 | mem_len = pci_resource_len(pdev, 0); | |
3ce06a32 DP |
568 | pci_len0 = 0; |
569 | ||
570 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
571 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
572 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
573 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
574 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
575 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
576 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
577 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
578 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
3d396eb1 AK |
579 | |
580 | /* 128 Meg of memory */ | |
6c80b18d MT |
581 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
582 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
583 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
584 | SECOND_PAGE_GROUP_SIZE); | |
585 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
586 | THIRD_PAGE_GROUP_SIZE); | |
587 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
588 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
589 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
590 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
591 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
592 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
593 | first_page_group_start = 0; | |
594 | first_page_group_end = 0; | |
3ce06a32 DP |
595 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
596 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
597 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
598 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
599 | adapter->pci_write_immediate = | |
600 | netxen_nic_pci_write_immediate_2M; | |
601 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
602 | adapter->pci_write_normalize = | |
603 | netxen_nic_pci_write_normalize_2M; | |
604 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
605 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
606 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
607 | ||
608 | mem_ptr0 = ioremap(mem_base, mem_len); | |
609 | pci_len0 = mem_len; | |
610 | first_page_group_start = 0; | |
611 | first_page_group_end = 0; | |
612 | ||
613 | adapter->ahw.ddr_mn_window = 0; | |
614 | adapter->ahw.qdr_sn_window = 0; | |
615 | ||
616 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
617 | (pci_func_id * 0x20); | |
618 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
619 | if (pci_func_id < 4) | |
620 | adapter->ahw.ms_win_crb += (pci_func_id * 0x20); | |
621 | else | |
622 | adapter->ahw.ms_win_crb += | |
623 | 0xA0 + ((pci_func_id - 4) * 0x10); | |
6c80b18d | 624 | } else { |
4790654c | 625 | err = -EIO; |
6c80b18d MT |
626 | goto err_out_free_netdev; |
627 | } | |
cb8011ad | 628 | |
3ce06a32 | 629 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
cb8011ad | 630 | |
ed25ffa1 AK |
631 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
632 | db_len = pci_resource_len(pdev, 4); | |
633 | ||
634 | if (db_len == 0) { | |
635 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
2956640d | 636 | netxen_nic_driver_name); |
ed25ffa1 AK |
637 | err = -EIO; |
638 | goto err_out_iounmap; | |
639 | } | |
640 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
641 | db_len); | |
642 | ||
643 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 644 | if (!db_ptr) { |
ed25ffa1 | 645 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
2956640d | 646 | netxen_nic_driver_name); |
ed25ffa1 AK |
647 | err = -EIO; |
648 | goto err_out_iounmap; | |
3d396eb1 | 649 | } |
ed25ffa1 | 650 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 651 | |
6c80b18d | 652 | adapter->ahw.pci_base0 = mem_ptr0; |
3ce06a32 | 653 | adapter->ahw.pci_len0 = pci_len0; |
6c80b18d MT |
654 | adapter->ahw.first_page_group_start = first_page_group_start; |
655 | adapter->ahw.first_page_group_end = first_page_group_end; | |
656 | adapter->ahw.pci_base1 = mem_ptr1; | |
657 | adapter->ahw.pci_base2 = mem_ptr2; | |
658 | adapter->ahw.db_base = db_ptr; | |
659 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 660 | |
bea3348e | 661 | netif_napi_add(netdev, &adapter->napi, |
2956640d DP |
662 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); |
663 | ||
664 | if (revision_id >= NX_P3_B0) | |
665 | legacy_intrp = &legacy_intr[pci_func_id]; | |
666 | else | |
667 | legacy_intrp = &legacy_intr[0]; | |
668 | ||
669 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
670 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
671 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
672 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
bea3348e | 673 | |
2d1a3bbd | 674 | /* this will be read from FW later */ |
675 | adapter->intr_scheme = -1; | |
443be796 | 676 | adapter->msi_mode = -1; |
2d1a3bbd | 677 | |
678 | /* This will be reset for mezz cards */ | |
3176ff3e | 679 | adapter->portnum = pci_func_id; |
2d1a3bbd | 680 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 681 | adapter->rx_csum = 1; |
623621b0 | 682 | adapter->mc_enabled = 0; |
83821a07 | 683 | if (NX_IS_REVISION_P3(revision_id)) |
2956640d | 684 | adapter->max_mc_count = 38; |
83821a07 | 685 | else |
2956640d | 686 | adapter->max_mc_count = 16; |
3176ff3e MT |
687 | |
688 | netdev->open = netxen_nic_open; | |
689 | netdev->stop = netxen_nic_close; | |
690 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 691 | netdev->get_stats = netxen_nic_get_stats; |
c9fc891f DP |
692 | if (NX_IS_REVISION_P3(revision_id)) |
693 | netdev->set_multicast_list = netxen_p3_nic_set_multi; | |
694 | else | |
695 | netdev->set_multicast_list = netxen_p2_nic_set_multi; | |
3176ff3e MT |
696 | netdev->set_mac_address = netxen_nic_set_mac; |
697 | netdev->change_mtu = netxen_nic_change_mtu; | |
698 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 699 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
700 | |
701 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
702 | ||
703 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
704 | #ifdef CONFIG_NET_POLL_CONTROLLER |
705 | netdev->poll_controller = netxen_nic_poll_controller; | |
706 | #endif | |
707 | /* ScatterGather support */ | |
708 | netdev->features = NETIF_F_SG; | |
709 | netdev->features |= NETIF_F_IP_CSUM; | |
710 | netdev->features |= NETIF_F_TSO; | |
cd1f8160 DP |
711 | if (NX_IS_REVISION_P3(revision_id)) { |
712 | netdev->features |= NETIF_F_IPV6_CSUM; | |
2956640d | 713 | netdev->features |= NETIF_F_TSO6; |
cd1f8160 | 714 | } |
3176ff3e | 715 | |
2956640d | 716 | if (adapter->pci_using_dac) |
3176ff3e MT |
717 | netdev->features |= NETIF_F_HIGHDMA; |
718 | ||
6c80b18d MT |
719 | /* |
720 | * Set the CRB window to invalid. If any register in window 0 is | |
721 | * accessed it should set the window to 0 and then reset it to 1. | |
722 | */ | |
723 | adapter->curr_window = 255; | |
724 | ||
dcd56fdb DP |
725 | if (netxen_nic_get_board_info(adapter) != 0) { |
726 | printk("%s: Error getting board config info.\n", | |
2956640d | 727 | netxen_nic_driver_name); |
dcd56fdb DP |
728 | err = -EIO; |
729 | goto err_out_iounmap; | |
730 | } | |
6c80b18d | 731 | |
6c80b18d MT |
732 | netxen_initialize_adapter_ops(adapter); |
733 | ||
13ba9c77 | 734 | /* Mezz cards have PCI function 0,2,3 enabled */ |
dc515f2e DP |
735 | switch (adapter->ahw.boardcfg.board_type) { |
736 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
737 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
738 | if (pci_func_id >= 2) | |
13ba9c77 | 739 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
740 | break; |
741 | default: | |
742 | break; | |
743 | } | |
13ba9c77 | 744 | |
2956640d DP |
745 | /* |
746 | * This call will setup various max rx/tx counts. | |
747 | * It must be done before any buffer/ring allocations. | |
748 | */ | |
749 | netxen_check_options(adapter); | |
3d396eb1 | 750 | |
2956640d DP |
751 | first_driver = 0; |
752 | if (NX_IS_REVISION_P3(revision_id)) { | |
753 | if (adapter->ahw.pci_func == 0) | |
754 | first_driver = 1; | |
755 | } else { | |
756 | if (adapter->portnum == 0) | |
757 | first_driver = 1; | |
758 | } | |
3d396eb1 | 759 | |
2956640d DP |
760 | if (first_driver) { |
761 | first_boot = adapter->pci_read_normalize(adapter, | |
762 | NETXEN_CAM_RAM(0x1fc)); | |
3176ff3e | 763 | |
2956640d DP |
764 | err = netxen_check_hw_init(adapter, first_boot); |
765 | if (err) { | |
766 | printk(KERN_ERR "%s: error in init HW init sequence\n", | |
767 | netxen_nic_driver_name); | |
768 | goto err_out_iounmap; | |
3176ff3e | 769 | } |
3176ff3e | 770 | |
2956640d DP |
771 | if (NX_IS_REVISION_P3(revision_id)) |
772 | netxen_set_port_mode(adapter); | |
773 | ||
774 | if (first_boot != 0x55555555) { | |
3ce06a32 DP |
775 | adapter->pci_write_normalize(adapter, |
776 | CRB_CMDPEG_STATE, 0); | |
439b454e DP |
777 | netxen_pinit_from_rom(adapter, 0); |
778 | msleep(1); | |
779 | netxen_load_firmware(adapter); | |
2956640d DP |
780 | } |
781 | ||
782 | if (NX_IS_REVISION_P3(revision_id)) | |
783 | netxen_pcie_strap_init(adapter); | |
784 | ||
785 | if (NX_IS_REVISION_P2(revision_id)) { | |
623621b0 DP |
786 | |
787 | /* Initialize multicast addr pool owners */ | |
788 | val = 0x7654; | |
789 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
790 | val |= 0x0f000000; | |
791 | netxen_crb_writelit_adapter(adapter, | |
792 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
793 | ||
6c80b18d | 794 | } |
96acb6eb | 795 | |
2956640d DP |
796 | if ((first_boot == 0x55555555) && |
797 | (NX_IS_REVISION_P2(revision_id))) { | |
798 | /* Unlock the HW, prompting the boot sequence */ | |
799 | adapter->pci_write_normalize(adapter, | |
800 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
801 | } | |
802 | ||
803 | err = netxen_initialize_adapter_offload(adapter); | |
804 | if (err) | |
805 | goto err_out_iounmap; | |
6c80b18d MT |
806 | |
807 | /* | |
808 | * Tell the hardware our version number. | |
809 | */ | |
4790654c | 810 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
811 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
812 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
3ce06a32 | 813 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); |
3d396eb1 | 814 | |
3176ff3e MT |
815 | /* Handshake with the card before we register the devices. */ |
816 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
2956640d | 817 | |
2956640d DP |
818 | } /* first_driver */ |
819 | ||
820 | netxen_nic_flash_print(adapter); | |
3d396eb1 | 821 | |
d9e651bc DP |
822 | if (NX_IS_REVISION_P3(revision_id)) { |
823 | adapter->hw_read_wx(adapter, | |
824 | NETXEN_MIU_MN_CONTROL, &val, 4); | |
825 | adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; | |
826 | dev_info(&pdev->dev, "firmware running in %s mode\n", | |
827 | adapter->ahw.cut_through ? "cut through" : "legacy"); | |
828 | } | |
829 | ||
3d396eb1 | 830 | /* |
6c80b18d | 831 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 832 | */ |
dcd56fdb | 833 | adapter->physical_port = adapter->portnum; |
3ce06a32 | 834 | i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum)); |
6c80b18d | 835 | if (i != 0x55555555) |
3276fbad | 836 | adapter->physical_port = i; |
6c80b18d | 837 | |
2956640d DP |
838 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
839 | ||
840 | netxen_set_msix_bit(pdev, 0); | |
841 | ||
842 | if (NX_IS_REVISION_P3(revision_id)) { | |
843 | if ((mem_len != NETXEN_PCI_128MB_SIZE) && | |
844 | mem_len != NETXEN_PCI_2MB_SIZE) | |
845 | adapter->msix_supported = 0; | |
846 | } | |
847 | ||
848 | if (adapter->msix_supported) { | |
849 | ||
850 | netxen_init_msix_entries(adapter); | |
851 | ||
852 | if (pci_enable_msix(pdev, adapter->msix_entries, | |
853 | MSIX_ENTRIES_PER_ADAPTER)) | |
854 | goto request_msi; | |
855 | ||
856 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
857 | netxen_set_msix_bit(pdev, 1); | |
858 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
859 | ||
860 | } else { | |
861 | request_msi: | |
862 | if (use_msi && !pci_enable_msi(pdev)) { | |
863 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
864 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
865 | } else | |
866 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
867 | } | |
868 | ||
869 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
870 | netdev->irq = adapter->msix_entries[0].vector; | |
871 | else | |
872 | netdev->irq = pdev->irq; | |
873 | ||
874 | err = netxen_receive_peg_ready(adapter); | |
875 | if (err) | |
876 | goto err_out_disable_msi; | |
877 | ||
878 | init_timer(&adapter->watchdog_timer); | |
2956640d DP |
879 | adapter->watchdog_timer.function = &netxen_watchdog; |
880 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
881 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
882 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
883 | ||
9dc28efe DP |
884 | err = netxen_read_mac_addr(adapter); |
885 | if (err) | |
886 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
2956640d | 887 | |
3176ff3e MT |
888 | netif_carrier_off(netdev); |
889 | netif_stop_queue(netdev); | |
890 | ||
6c80b18d MT |
891 | if ((err = register_netdev(netdev))) { |
892 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
893 | " aborting\n", netxen_nic_driver_name, | |
894 | adapter->portnum); | |
895 | err = -EIO; | |
2956640d | 896 | goto err_out_disable_msi; |
6c80b18d MT |
897 | } |
898 | ||
899 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 900 | |
2956640d DP |
901 | switch (adapter->ahw.board_type) { |
902 | case NETXEN_NIC_GBE: | |
903 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
904 | adapter->netdev->name); | |
905 | break; | |
906 | case NETXEN_NIC_XGBE: | |
907 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
908 | adapter->netdev->name); | |
909 | break; | |
3d396eb1 | 910 | } |
3d396eb1 | 911 | |
2956640d DP |
912 | return 0; |
913 | ||
914 | err_out_disable_msi: | |
915 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
916 | pci_disable_msix(pdev); | |
6c80b18d MT |
917 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
918 | pci_disable_msi(pdev); | |
919 | ||
2956640d DP |
920 | if (first_driver) |
921 | netxen_free_adapter_offload(adapter); | |
3d396eb1 | 922 | |
2956640d | 923 | err_out_iounmap: |
ed25ffa1 AK |
924 | if (db_ptr) |
925 | iounmap(db_ptr); | |
926 | ||
ed25ffa1 AK |
927 | if (mem_ptr0) |
928 | iounmap(mem_ptr0); | |
929 | if (mem_ptr1) | |
930 | iounmap(mem_ptr1); | |
931 | if (mem_ptr2) | |
932 | iounmap(mem_ptr2); | |
cb8011ad | 933 | |
6c80b18d MT |
934 | err_out_free_netdev: |
935 | free_netdev(netdev); | |
936 | ||
937 | err_out_free_res: | |
3d396eb1 | 938 | pci_release_regions(pdev); |
6c80b18d MT |
939 | |
940 | err_out_disable_pdev: | |
2956640d | 941 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
942 | pci_disable_device(pdev); |
943 | return err; | |
944 | } | |
945 | ||
946 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
947 | { | |
948 | struct netxen_adapter *adapter; | |
3176ff3e | 949 | struct net_device *netdev; |
3d396eb1 | 950 | |
6c80b18d | 951 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
952 | if (adapter == NULL) |
953 | return; | |
954 | ||
6c80b18d MT |
955 | netdev = adapter->netdev; |
956 | ||
96acb6eb DP |
957 | unregister_netdev(netdev); |
958 | ||
96acb6eb | 959 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
3d396eb1 | 960 | netxen_free_hw_resources(adapter); |
9e410778 | 961 | netxen_release_rx_buffers(adapter); |
2956640d | 962 | netxen_free_sw_resources(adapter); |
96acb6eb | 963 | } |
3d396eb1 | 964 | |
439b454e DP |
965 | if (adapter->portnum == 0) |
966 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 967 | |
3052246c | 968 | if (adapter->irq) |
969 | free_irq(adapter->irq, adapter); | |
970 | ||
2956640d DP |
971 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
972 | pci_disable_msix(pdev); | |
3052246c | 973 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
974 | pci_disable_msi(pdev); | |
975 | ||
6c80b18d MT |
976 | iounmap(adapter->ahw.db_base); |
977 | iounmap(adapter->ahw.pci_base0); | |
978 | iounmap(adapter->ahw.pci_base1); | |
979 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
980 | |
981 | pci_release_regions(pdev); | |
3052246c | 982 | pci_disable_device(pdev); |
595e3fb8 MT |
983 | pci_set_drvdata(pdev, NULL); |
984 | ||
6c80b18d | 985 | free_netdev(netdev); |
3d396eb1 AK |
986 | } |
987 | ||
988 | /* | |
989 | * Called when a network interface is made active | |
990 | * @returns 0 on success, negative value on failure | |
991 | */ | |
992 | static int netxen_nic_open(struct net_device *netdev) | |
993 | { | |
3176ff3e | 994 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
995 | int err = 0; |
996 | int ctx, ring; | |
05aaa02d DP |
997 | irq_handler_t handler; |
998 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 | 999 | |
dcd56fdb DP |
1000 | if (adapter->driver_mismatch) |
1001 | return -EIO; | |
1002 | ||
3d396eb1 AK |
1003 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
1004 | err = netxen_init_firmware(adapter); | |
1005 | if (err != 0) { | |
1006 | printk(KERN_ERR "Failed to init firmware\n"); | |
1007 | return -EIO; | |
1008 | } | |
3d396eb1 | 1009 | |
83821a07 DP |
1010 | if (adapter->fw_major < 4) |
1011 | adapter->max_rds_rings = 3; | |
1012 | else | |
1013 | adapter->max_rds_rings = 2; | |
1014 | ||
2956640d | 1015 | err = netxen_alloc_sw_resources(adapter); |
3d396eb1 | 1016 | if (err) { |
2956640d DP |
1017 | printk(KERN_ERR "%s: Error in setting sw resources\n", |
1018 | netdev->name); | |
3d396eb1 AK |
1019 | return err; |
1020 | } | |
2956640d DP |
1021 | |
1022 | netxen_nic_clear_stats(adapter); | |
1023 | ||
1024 | err = netxen_alloc_hw_resources(adapter); | |
1025 | if (err) { | |
1026 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
1027 | netdev->name); | |
1028 | goto err_out_free_sw; | |
1029 | } | |
1030 | ||
092bc571 DP |
1031 | if ((adapter->msi_mode != MSI_MODE_MULTIFUNC) || |
1032 | (adapter->intr_scheme != INTR_SCHEME_PERPORT)) { | |
1033 | printk(KERN_ERR "%s: Firmware interrupt scheme is " | |
1034 | "incompatible with driver\n", | |
1035 | netdev->name); | |
1036 | adapter->driver_mismatch = 1; | |
1037 | goto err_out_free_hw; | |
1038 | } | |
1039 | ||
2956640d DP |
1040 | if (adapter->fw_major < 4) { |
1041 | adapter->crb_addr_cmd_producer = | |
1042 | crb_cmd_producer[adapter->portnum]; | |
1043 | adapter->crb_addr_cmd_consumer = | |
1044 | crb_cmd_consumer[adapter->portnum]; | |
2956640d | 1045 | |
83821a07 DP |
1046 | netxen_nic_update_cmd_producer(adapter, 0); |
1047 | netxen_nic_update_cmd_consumer(adapter, 0); | |
1048 | } | |
2956640d | 1049 | |
3d396eb1 | 1050 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
48bfd1e0 | 1051 | for (ring = 0; ring < adapter->max_rds_rings; ring++) |
3d396eb1 | 1052 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 1053 | } |
2956640d | 1054 | if (NETXEN_IS_MSI_FAMILY(adapter)) |
05aaa02d DP |
1055 | handler = netxen_msi_intr; |
1056 | else { | |
1057 | flags |= IRQF_SHARED; | |
1058 | handler = netxen_intr; | |
1059 | } | |
2956640d | 1060 | adapter->irq = netdev->irq; |
05aaa02d DP |
1061 | err = request_irq(adapter->irq, handler, |
1062 | flags, netdev->name, adapter); | |
3d396eb1 AK |
1063 | if (err) { |
1064 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
9e410778 | 1065 | goto err_out_free_rxbuf; |
3d396eb1 | 1066 | } |
ed25ffa1 AK |
1067 | |
1068 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
1069 | } | |
2956640d | 1070 | |
3d396eb1 AK |
1071 | /* Done here again so that even if phantom sw overwrote it, |
1072 | * we set it */ | |
c9fc891f | 1073 | err = adapter->init_port(adapter, adapter->physical_port); |
2956640d | 1074 | if (err) { |
595e3fb8 MT |
1075 | printk(KERN_ERR "%s: Failed to initialize port %d\n", |
1076 | netxen_nic_driver_name, adapter->portnum); | |
2956640d | 1077 | goto err_out_free_irq; |
595e3fb8 | 1078 | } |
2956640d | 1079 | adapter->macaddr_set(adapter, netdev->dev_addr); |
595e3fb8 | 1080 | |
3176ff3e | 1081 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 | 1082 | |
c9fc891f | 1083 | netdev->set_multicast_list(netdev); |
9ad27643 | 1084 | if (adapter->set_mtu) |
c9fc891f | 1085 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 1086 | |
922c4f2c | 1087 | adapter->ahw.linkup = 0; |
dcd56fdb | 1088 | mod_timer(&adapter->watchdog_timer, jiffies); |
05aaa02d DP |
1089 | |
1090 | napi_enable(&adapter->napi); | |
1091 | netxen_nic_enable_int(adapter); | |
1092 | ||
dcd56fdb | 1093 | netif_start_queue(netdev); |
3d396eb1 AK |
1094 | |
1095 | return 0; | |
2956640d DP |
1096 | |
1097 | err_out_free_irq: | |
1098 | free_irq(adapter->irq, adapter); | |
9e410778 DP |
1099 | err_out_free_rxbuf: |
1100 | netxen_release_rx_buffers(adapter); | |
092bc571 | 1101 | err_out_free_hw: |
2956640d DP |
1102 | netxen_free_hw_resources(adapter); |
1103 | err_out_free_sw: | |
1104 | netxen_free_sw_resources(adapter); | |
1105 | return err; | |
3d396eb1 AK |
1106 | } |
1107 | ||
1108 | /* | |
1109 | * netxen_nic_close - Disables a network interface entry point | |
1110 | */ | |
1111 | static int netxen_nic_close(struct net_device *netdev) | |
1112 | { | |
3176ff3e | 1113 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1114 | |
1115 | netif_carrier_off(netdev); | |
1116 | netif_stop_queue(netdev); | |
bea3348e | 1117 | napi_disable(&adapter->napi); |
3d396eb1 | 1118 | |
72b0a7a8 | 1119 | if (adapter->stop_port) |
1120 | adapter->stop_port(adapter); | |
1121 | ||
e01872af | 1122 | netxen_nic_disable_int(adapter); |
1123 | ||
2956640d DP |
1124 | netxen_release_tx_buffers(adapter); |
1125 | ||
922c4f2c DP |
1126 | FLUSH_SCHEDULED_WORK(); |
1127 | del_timer_sync(&adapter->watchdog_timer); | |
3d396eb1 AK |
1128 | |
1129 | return 0; | |
1130 | } | |
1131 | ||
cd1f8160 DP |
1132 | void netxen_tso_check(struct netxen_adapter *adapter, |
1133 | struct cmd_desc_type0 *desc, struct sk_buff *skb) | |
1134 | { | |
1135 | if (desc->mss) { | |
1136 | desc->total_hdr_length = (sizeof(struct ethhdr) + | |
1137 | ip_hdrlen(skb) + tcp_hdrlen(skb)); | |
1138 | ||
1139 | if ((NX_IS_REVISION_P3(adapter->ahw.revision_id)) && | |
1140 | (skb->protocol == htons(ETH_P_IPV6))) | |
1141 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO6); | |
1142 | else | |
1143 | netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO); | |
1144 | ||
1145 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1146 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) | |
1147 | netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT); | |
1148 | else if (ip_hdr(skb)->protocol == IPPROTO_UDP) | |
1149 | netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT); | |
1150 | else | |
1151 | return; | |
1152 | } | |
1153 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1154 | desc->ip_hdr_offset = skb_network_offset(skb); | |
1155 | } | |
1156 | ||
3d396eb1 AK |
1157 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1158 | { | |
3176ff3e | 1159 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1160 | struct netxen_hardware_context *hw = &adapter->ahw; |
1161 | unsigned int first_seg_len = skb->len - skb->data_len; | |
1162 | struct netxen_skb_frag *buffrag; | |
1163 | unsigned int i; | |
1164 | ||
ba53e6b4 | 1165 | u32 producer, consumer; |
3d396eb1 AK |
1166 | u32 saved_producer = 0; |
1167 | struct cmd_desc_type0 *hwdesc; | |
1168 | int k; | |
1169 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 | 1170 | int frag_count; |
3d396eb1 | 1171 | int no_of_desc; |
ba53e6b4 | 1172 | u32 num_txd = adapter->max_tx_desc_count; |
3d396eb1 | 1173 | |
3d396eb1 AK |
1174 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1175 | ||
3d396eb1 AK |
1176 | /* There 4 fragments per descriptor */ |
1177 | no_of_desc = (frag_count + 3) >> 2; | |
cd1f8160 | 1178 | if (netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) { |
cb8011ad AK |
1179 | if (skb_shinfo(skb)->gso_size > 0) { |
1180 | ||
3d396eb1 | 1181 | no_of_desc++; |
ab6a5bb6 | 1182 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 1183 | sizeof(struct ethhdr)) > |
ed25ffa1 | 1184 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
1185 | no_of_desc++; |
1186 | } | |
3d396eb1 AK |
1187 | } |
1188 | } | |
53a01e00 | 1189 | |
ba53e6b4 DP |
1190 | producer = adapter->cmd_producer; |
1191 | smp_mb(); | |
1192 | consumer = adapter->last_cmd_consumer; | |
1193 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
1194 | netif_stop_queue(netdev); | |
1195 | smp_mb(); | |
1196 | return NETDEV_TX_BUSY; | |
53a01e00 | 1197 | } |
3d396eb1 | 1198 | |
3d396eb1 | 1199 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
1200 | saved_producer = producer; |
1201 | hwdesc = &hw->cmd_desc_head[producer]; | |
1202 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1203 | /* Take skb->data itself */ | |
1204 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cd1f8160 DP |
1205 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1206 | skb_shinfo(skb)->gso_size > 0) { | |
a608ab9c | 1207 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 1208 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
1209 | } else { |
1210 | pbuf->mss = 0; | |
1211 | hwdesc->mss = 0; | |
1212 | } | |
3d396eb1 AK |
1213 | pbuf->total_length = skb->len; |
1214 | pbuf->skb = skb; | |
1215 | pbuf->cmd = TX_ETHER_PKT; | |
1216 | pbuf->frag_count = frag_count; | |
3176ff3e | 1217 | pbuf->port = adapter->portnum; |
3d396eb1 | 1218 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1219 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1220 | PCI_DMA_TODEVICE); |
1221 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1222 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1223 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1224 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1225 | |
3176ff3e | 1226 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1227 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1228 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1229 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1230 | ||
1231 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1232 | struct skb_frag_struct *frag; | |
1233 | int len, temp_len; | |
1234 | unsigned long offset; | |
1235 | dma_addr_t temp_dma; | |
1236 | ||
1237 | /* move to next desc. if there is a need */ | |
1238 | if ((i & 0x3) == 0) { | |
1239 | k = 0; | |
ba53e6b4 | 1240 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1241 | hwdesc = &hw->cmd_desc_head[producer]; |
1242 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1243 | pbuf = &adapter->cmd_buf_arr[producer]; |
1244 | pbuf->skb = NULL; | |
3d396eb1 AK |
1245 | } |
1246 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1247 | len = frag->size; | |
1248 | offset = frag->page_offset; | |
1249 | ||
1250 | temp_len = len; | |
3176ff3e | 1251 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1252 | len, PCI_DMA_TODEVICE); |
1253 | ||
1254 | buffrag++; | |
1255 | buffrag->dma = temp_dma; | |
1256 | buffrag->length = temp_len; | |
1257 | ||
3d396eb1 AK |
1258 | switch (k) { |
1259 | case 0: | |
1260 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1261 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1262 | break; | |
1263 | case 1: | |
1264 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1265 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1266 | break; | |
1267 | case 2: | |
1268 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1269 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1270 | break; | |
1271 | case 3: | |
a608ab9c | 1272 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1273 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1274 | break; | |
1275 | } | |
1276 | frag++; | |
1277 | } | |
ba53e6b4 | 1278 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1279 | |
1280 | /* might change opcode to TX_TCP_LSO */ | |
1281 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1282 | ||
1283 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1284 | * the descriptor ring | |
1285 | */ | |
ed25ffa1 AK |
1286 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1287 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1288 | int hdr_len, first_hdr_len, more_hdr; |
1289 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1290 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1291 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1292 | more_hdr = 1; |
1293 | } else { | |
1294 | first_hdr_len = hdr_len; | |
1295 | more_hdr = 0; | |
1296 | } | |
1297 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1298 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1299 | pbuf = &adapter->cmd_buf_arr[producer]; |
1300 | pbuf->skb = NULL; | |
3d396eb1 AK |
1301 | |
1302 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1303 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1304 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1305 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1306 | |
1307 | if (more_hdr) { | |
1308 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1309 | pbuf = &adapter->cmd_buf_arr[producer]; |
1310 | pbuf->skb = NULL; | |
3d396eb1 AK |
1311 | /* copy the next 64 bytes - should be enough except |
1312 | * for pathological case | |
1313 | */ | |
d626f62b ACM |
1314 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1315 | hwdesc, | |
1316 | (hdr_len - | |
1317 | first_hdr_len)); | |
ba53e6b4 | 1318 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1319 | } |
1320 | } | |
6c80b18d | 1321 | |
ba53e6b4 | 1322 | adapter->cmd_producer = producer; |
5dc16268 | 1323 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1324 | |
ba53e6b4 | 1325 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1326 | |
ba53e6b4 | 1327 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1328 | netdev->trans_start = jiffies; |
1329 | ||
3d396eb1 AK |
1330 | return NETDEV_TX_OK; |
1331 | } | |
1332 | ||
a97342f9 DP |
1333 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1334 | { | |
1335 | struct net_device *netdev = adapter->netdev; | |
1336 | uint32_t temp, temp_state, temp_val; | |
1337 | int rv = 0; | |
1338 | ||
1339 | temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE); | |
1340 | ||
1341 | temp_state = nx_get_temp_state(temp); | |
1342 | temp_val = nx_get_temp_val(temp); | |
1343 | ||
1344 | if (temp_state == NX_TEMP_PANIC) { | |
1345 | printk(KERN_ALERT | |
1346 | "%s: Device temperature %d degrees C exceeds" | |
1347 | " maximum allowed. Hardware has been shut down.\n", | |
1348 | netxen_nic_driver_name, temp_val); | |
1349 | ||
1350 | netif_carrier_off(netdev); | |
1351 | netif_stop_queue(netdev); | |
1352 | rv = 1; | |
1353 | } else if (temp_state == NX_TEMP_WARN) { | |
1354 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1355 | printk(KERN_ALERT | |
1356 | "%s: Device temperature %d degrees C " | |
1357 | "exceeds operating range." | |
1358 | " Immediate action needed.\n", | |
1359 | netxen_nic_driver_name, temp_val); | |
1360 | } | |
1361 | } else { | |
1362 | if (adapter->temp == NX_TEMP_WARN) { | |
1363 | printk(KERN_INFO | |
1364 | "%s: Device temperature is now %d degrees C" | |
1365 | " in normal range.\n", netxen_nic_driver_name, | |
1366 | temp_val); | |
1367 | } | |
1368 | } | |
1369 | adapter->temp = temp_state; | |
1370 | return rv; | |
1371 | } | |
1372 | ||
1373 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) | |
1374 | { | |
1375 | struct net_device *netdev = adapter->netdev; | |
1376 | u32 val, port, linkup; | |
1377 | ||
1378 | port = adapter->physical_port; | |
1379 | ||
24a7a455 DP |
1380 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1381 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); | |
1382 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); | |
1383 | linkup = (val == XG_LINK_UP_P3); | |
c9fc891f | 1384 | } else { |
24a7a455 DP |
1385 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); |
1386 | if (adapter->ahw.board_type == NETXEN_NIC_GBE) | |
1387 | linkup = (val >> port) & 1; | |
1388 | else { | |
c9fc891f DP |
1389 | val = (val >> port*8) & 0xff; |
1390 | linkup = (val == XG_LINK_UP); | |
c9fc891f | 1391 | } |
a97342f9 DP |
1392 | } |
1393 | ||
1394 | if (adapter->ahw.linkup && !linkup) { | |
1395 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1396 | netxen_nic_driver_name, netdev->name); | |
1397 | adapter->ahw.linkup = 0; | |
1398 | if (netif_running(netdev)) { | |
1399 | netif_carrier_off(netdev); | |
1400 | netif_stop_queue(netdev); | |
1401 | } | |
1402 | } else if (!adapter->ahw.linkup && linkup) { | |
1403 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1404 | netxen_nic_driver_name, netdev->name); | |
1405 | adapter->ahw.linkup = 1; | |
1406 | if (netif_running(netdev)) { | |
1407 | netif_carrier_on(netdev); | |
1408 | netif_wake_queue(netdev); | |
1409 | } | |
1410 | } | |
1411 | } | |
1412 | ||
3d396eb1 AK |
1413 | static void netxen_watchdog(unsigned long v) |
1414 | { | |
1415 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1416 | |
1417 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1418 | } |
1419 | ||
a97342f9 DP |
1420 | void netxen_watchdog_task(struct work_struct *work) |
1421 | { | |
1422 | struct netxen_adapter *adapter = | |
1423 | container_of(work, struct netxen_adapter, watchdog_task); | |
1424 | ||
1425 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) | |
1426 | return; | |
1427 | ||
1428 | netxen_nic_handle_phy_intr(adapter); | |
1429 | ||
922c4f2c DP |
1430 | if (netif_running(adapter->netdev)) |
1431 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
a97342f9 DP |
1432 | } |
1433 | ||
3d396eb1 AK |
1434 | static void netxen_tx_timeout(struct net_device *netdev) |
1435 | { | |
3176ff3e MT |
1436 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1437 | netdev_priv(netdev); | |
1438 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1439 | } |
1440 | ||
6d5aefb8 | 1441 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1442 | { |
4790654c | 1443 | struct netxen_adapter *adapter = |
3176ff3e | 1444 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1445 | |
1446 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1447 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1448 | |
ba53e6b4 DP |
1449 | netxen_nic_disable_int(adapter); |
1450 | napi_disable(&adapter->napi); | |
1451 | ||
6c80b18d | 1452 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1453 | |
1454 | napi_enable(&adapter->napi); | |
1455 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1456 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1457 | } |
1458 | ||
a97342f9 DP |
1459 | /* |
1460 | * netxen_nic_get_stats - Get System Network Statistics | |
1461 | * @netdev: network interface device structure | |
1462 | */ | |
1463 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) | |
1464 | { | |
1465 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1466 | struct net_device_stats *stats = &adapter->net_stats; | |
1467 | ||
1468 | memset(stats, 0, sizeof(*stats)); | |
1469 | ||
1470 | /* total packets received */ | |
1471 | stats->rx_packets = adapter->stats.no_rcv; | |
1472 | /* total packets transmitted */ | |
1473 | stats->tx_packets = adapter->stats.xmitedframes + | |
1474 | adapter->stats.xmitfinished; | |
1475 | /* total bytes received */ | |
1476 | stats->rx_bytes = adapter->stats.rxbytes; | |
1477 | /* total bytes transmitted */ | |
1478 | stats->tx_bytes = adapter->stats.txbytes; | |
1479 | /* bad packets received */ | |
1480 | stats->rx_errors = adapter->stats.rcvdbadskb; | |
1481 | /* packet transmit problems */ | |
1482 | stats->tx_errors = adapter->stats.nocmddescriptor; | |
1483 | /* no space in linux buffers */ | |
1484 | stats->rx_dropped = adapter->stats.rxdropped; | |
1485 | /* no space available in linux */ | |
1486 | stats->tx_dropped = adapter->stats.txdropped; | |
1487 | ||
1488 | return stats; | |
1489 | } | |
1490 | ||
e4c93c81 | 1491 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1492 | { |
1daec86a | 1493 | struct netxen_adapter *adapter = data; |
d71e1be8 DP |
1494 | u32 status = 0; |
1495 | ||
1496 | status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1497 | ||
1498 | if (!(status & adapter->legacy_intr.int_vec_bit)) | |
05aaa02d | 1499 | return IRQ_NONE; |
e01872af | 1500 | |
d71e1be8 DP |
1501 | if (adapter->ahw.revision_id >= NX_P3_B1) { |
1502 | /* check interrupt state machine, to be sure */ | |
1503 | status = adapter->pci_read_immediate(adapter, | |
1504 | ISR_INT_STATE_REG); | |
1505 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1506 | return IRQ_NONE; | |
1507 | ||
092bc571 DP |
1508 | } else { |
1509 | unsigned long our_int = 0; | |
d71e1be8 DP |
1510 | |
1511 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); | |
092bc571 | 1512 | |
d71e1be8 | 1513 | /* not our interrupt */ |
092bc571 | 1514 | if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) |
d71e1be8 DP |
1515 | return IRQ_NONE; |
1516 | ||
092bc571 DP |
1517 | /* claim interrupt */ |
1518 | adapter->pci_write_normalize(adapter, | |
1519 | CRB_INT_VECTOR, (our_int & 0xffffffff)); | |
e01872af | 1520 | } |
1521 | ||
092bc571 DP |
1522 | /* clear interrupt */ |
1523 | if (adapter->fw_major < 4) | |
1524 | netxen_nic_disable_int(adapter); | |
1525 | ||
1526 | adapter->pci_write_immediate(adapter, | |
1527 | adapter->legacy_intr.tgt_status_reg, | |
1528 | 0xffffffff); | |
1529 | /* read twice to ensure write is flushed */ | |
1530 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1531 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1532 | ||
1533 | napi_schedule(&adapter->napi); | |
3d396eb1 AK |
1534 | |
1535 | return IRQ_HANDLED; | |
1536 | } | |
1537 | ||
e4c93c81 | 1538 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d DP |
1539 | { |
1540 | struct netxen_adapter *adapter = data; | |
1541 | ||
092bc571 DP |
1542 | /* clear interrupt */ |
1543 | adapter->pci_write_immediate(adapter, | |
1544 | msi_tgt_status[adapter->ahw.pci_func], 0xffffffff); | |
1545 | ||
1546 | napi_schedule(&adapter->napi); | |
05aaa02d DP |
1547 | return IRQ_HANDLED; |
1548 | } | |
1549 | ||
bea3348e | 1550 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1551 | { |
bea3348e | 1552 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1553 | int tx_complete; |
3d396eb1 | 1554 | int ctx; |
bea3348e | 1555 | int work_done; |
3d396eb1 | 1556 | |
05aaa02d | 1557 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1558 | |
80922fbc | 1559 | work_done = 0; |
3d396eb1 AK |
1560 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1561 | /* | |
1562 | * Fairness issue. This will give undue weight to the | |
1563 | * receive context 0. | |
1564 | */ | |
1565 | ||
1566 | /* | |
1567 | * To avoid starvation, we give each of our receivers, | |
1568 | * a fraction of the quota. Sometimes, it might happen that we | |
1569 | * have enough quota to process every packet, but since all the | |
1570 | * packets are on one context, it gets only half of the quota, | |
1571 | * and ends up not processing it. | |
1572 | */ | |
bea3348e SH |
1573 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1574 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1575 | } |
1576 | ||
05aaa02d DP |
1577 | if ((work_done < budget) && tx_complete) { |
1578 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1579 | netxen_nic_enable_int(adapter); |
1580 | } | |
1581 | ||
bea3348e | 1582 | return work_done; |
3d396eb1 AK |
1583 | } |
1584 | ||
1585 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1586 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1587 | { | |
3176ff3e | 1588 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1589 | disable_irq(adapter->irq); |
1494a814 | 1590 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1591 | enable_irq(adapter->irq); |
1592 | } | |
1593 | #endif | |
3d396eb1 AK |
1594 | |
1595 | static struct pci_driver netxen_driver = { | |
1596 | .name = netxen_nic_driver_name, | |
1597 | .id_table = netxen_pci_tbl, | |
1598 | .probe = netxen_nic_probe, | |
1599 | .remove = __devexit_p(netxen_nic_remove) | |
1600 | }; | |
1601 | ||
1602 | /* Driver Registration on NetXen card */ | |
1603 | ||
1604 | static int __init netxen_init_module(void) | |
1605 | { | |
79ea13ce | 1606 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1607 | return -ENOMEM; |
1608 | ||
184231bd | 1609 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1610 | } |
1611 | ||
1612 | module_init(netxen_init_module); | |
1613 | ||
1614 | static void __exit netxen_exit_module(void) | |
1615 | { | |
3d396eb1 | 1616 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1617 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1618 | } |
1619 | ||
1620 | module_exit(netxen_exit_module); |