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> |
391587c3 | 42 | #include <linux/if_vlan.h> |
c9bdd4b5 | 43 | #include <net/ip.h> |
1494a814 | 44 | |
3d396eb1 AK |
45 | MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); |
46 | MODULE_LICENSE("GPL"); | |
47 | MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); | |
48 | ||
ceded32f | 49 | char netxen_nic_driver_name[] = "netxen_nic"; |
3d396eb1 | 50 | static char netxen_nic_driver_string[] = "NetXen Network Driver version " |
cb8011ad | 51 | NETXEN_NIC_LINUX_VERSIONID; |
3d396eb1 | 52 | |
2956640d DP |
53 | static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
54 | ||
55 | /* Default to restricted 1G auto-neg mode */ | |
56 | static int wol_port_mode = 5; | |
57 | ||
58 | static int use_msi = 1; | |
59 | ||
60 | static int use_msi_x = 1; | |
61 | ||
3d396eb1 AK |
62 | /* Local functions to NetXen NIC driver */ |
63 | static int __devinit netxen_nic_probe(struct pci_dev *pdev, | |
2956640d | 64 | const struct pci_device_id *ent); |
3d396eb1 AK |
65 | static void __devexit netxen_nic_remove(struct pci_dev *pdev); |
66 | static int netxen_nic_open(struct net_device *netdev); | |
67 | static int netxen_nic_close(struct net_device *netdev); | |
68 | static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); | |
69 | static void netxen_tx_timeout(struct net_device *netdev); | |
6d5aefb8 | 70 | static void netxen_tx_timeout_task(struct work_struct *work); |
3d396eb1 | 71 | static void netxen_watchdog(unsigned long); |
bea3348e | 72 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
3d396eb1 AK |
73 | #ifdef CONFIG_NET_POLL_CONTROLLER |
74 | static void netxen_nic_poll_controller(struct net_device *netdev); | |
75 | #endif | |
1494a814 | 76 | static irqreturn_t netxen_intr(int irq, void *data); |
05aaa02d | 77 | static irqreturn_t netxen_msi_intr(int irq, void *data); |
3d396eb1 AK |
78 | |
79 | /* PCI Device ID Table */ | |
70081ac5 | 80 | #define ENTRY(device) \ |
040dec3b | 81 | {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ |
70081ac5 AV |
82 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} |
83 | ||
3d396eb1 | 84 | static struct pci_device_id netxen_pci_tbl[] __devinitdata = { |
040dec3b DP |
85 | ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), |
86 | ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), | |
87 | ENTRY(PCI_DEVICE_ID_NX2031_4GCU), | |
88 | ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), | |
89 | ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), | |
90 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), | |
91 | ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), | |
92 | ENTRY(PCI_DEVICE_ID_NX3031), | |
3d396eb1 AK |
93 | {0,} |
94 | }; | |
95 | ||
96 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); | |
97 | ||
b1555130 AB |
98 | /* |
99 | * In netxen_nic_down(), we must wait for any pending callback requests into | |
100 | * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be | |
101 | * reenabled right after it is deleted in netxen_nic_down(). | |
102 | * FLUSH_SCHEDULED_WORK() does this synchronization. | |
103 | * | |
104 | * Normally, schedule_work()/flush_scheduled_work() could have worked, but | |
105 | * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() | |
106 | * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a | |
107 | * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause | |
108 | * linkwatch_event() to be executed which also attempts to acquire the rtnl | |
109 | * lock thus causing a deadlock. | |
110 | */ | |
111 | ||
112 | static struct workqueue_struct *netxen_workq; | |
113 | #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) | |
114 | #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) | |
115 | ||
ed25ffa1 AK |
116 | static void netxen_watchdog(unsigned long); |
117 | ||
7830b22c DP |
118 | static uint32_t crb_cmd_producer[4] = { |
119 | CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, | |
120 | CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 | |
121 | }; | |
122 | ||
c9fc891f | 123 | void |
3ce06a32 DP |
124 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
125 | uint32_t crb_producer) | |
3176ff3e | 126 | { |
3ce06a32 DP |
127 | adapter->pci_write_normalize(adapter, |
128 | adapter->crb_addr_cmd_producer, crb_producer); | |
3176ff3e MT |
129 | } |
130 | ||
7830b22c DP |
131 | static uint32_t crb_cmd_consumer[4] = { |
132 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, | |
133 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 | |
134 | }; | |
135 | ||
3ce06a32 DP |
136 | static inline void |
137 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
138 | u32 crb_consumer) | |
3176ff3e | 139 | { |
3ce06a32 DP |
140 | adapter->pci_write_normalize(adapter, |
141 | adapter->crb_addr_cmd_consumer, crb_consumer); | |
3176ff3e MT |
142 | } |
143 | ||
2956640d | 144 | static uint32_t msi_tgt_status[8] = { |
443be796 | 145 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
2956640d DP |
146 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
147 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
148 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
443be796 DP |
149 | }; |
150 | ||
2956640d DP |
151 | static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
152 | ||
092bc571 | 153 | static inline void netxen_nic_disable_int(struct netxen_adapter *adapter) |
4638aef1 | 154 | { |
092bc571 | 155 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0); |
4638aef1 SH |
156 | } |
157 | ||
092bc571 | 158 | static inline void netxen_nic_enable_int(struct netxen_adapter *adapter) |
4638aef1 | 159 | { |
48bfd1e0 | 160 | adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1); |
4638aef1 | 161 | |
092bc571 DP |
162 | if (!NETXEN_IS_MSI_FAMILY(adapter)) |
163 | adapter->pci_write_immediate(adapter, | |
164 | adapter->legacy_intr.tgt_mask_reg, 0xfbff); | |
4638aef1 SH |
165 | } |
166 | ||
2956640d DP |
167 | static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) |
168 | { | |
169 | struct pci_dev *pdev = adapter->pdev; | |
170 | int err; | |
171 | uint64_t mask; | |
172 | ||
173 | #ifdef CONFIG_IA64 | |
174 | adapter->dma_mask = DMA_32BIT_MASK; | |
175 | #else | |
176 | if (revision_id >= NX_P3_B0) { | |
177 | /* should go to DMA_64BIT_MASK */ | |
178 | adapter->dma_mask = DMA_39BIT_MASK; | |
179 | mask = DMA_39BIT_MASK; | |
180 | } else if (revision_id == NX_P3_A2) { | |
181 | adapter->dma_mask = DMA_39BIT_MASK; | |
182 | mask = DMA_39BIT_MASK; | |
183 | } else if (revision_id == NX_P2_C1) { | |
184 | adapter->dma_mask = DMA_35BIT_MASK; | |
185 | mask = DMA_35BIT_MASK; | |
186 | } else { | |
187 | adapter->dma_mask = DMA_32BIT_MASK; | |
188 | mask = DMA_32BIT_MASK; | |
189 | goto set_32_bit_mask; | |
190 | } | |
191 | ||
192 | /* | |
193 | * Consistent DMA mask is set to 32 bit because it cannot be set to | |
194 | * 35 bits. For P3 also leave it at 32 bits for now. Only the rings | |
195 | * come off this pool. | |
196 | */ | |
197 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
198 | pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) { | |
199 | adapter->pci_using_dac = 1; | |
200 | return 0; | |
201 | } | |
202 | #endif /* CONFIG_IA64 */ | |
203 | ||
204 | set_32_bit_mask: | |
205 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
206 | if (!err) | |
207 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
208 | if (err) { | |
209 | DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err); | |
210 | return err; | |
211 | } | |
212 | ||
213 | adapter->pci_using_dac = 0; | |
214 | return 0; | |
215 | } | |
216 | ||
217 | static void netxen_check_options(struct netxen_adapter *adapter) | |
218 | { | |
219 | switch (adapter->ahw.boardcfg.board_type) { | |
220 | case NETXEN_BRDTYPE_P3_HMEZ: | |
221 | case NETXEN_BRDTYPE_P3_XG_LOM: | |
222 | case NETXEN_BRDTYPE_P3_10G_CX4: | |
223 | case NETXEN_BRDTYPE_P3_10G_CX4_LP: | |
224 | case NETXEN_BRDTYPE_P3_IMEZ: | |
225 | case NETXEN_BRDTYPE_P3_10G_SFP_PLUS: | |
a70f9393 DP |
226 | case NETXEN_BRDTYPE_P3_10G_SFP_QT: |
227 | case NETXEN_BRDTYPE_P3_10G_SFP_CT: | |
2956640d DP |
228 | case NETXEN_BRDTYPE_P3_10G_XFP: |
229 | case NETXEN_BRDTYPE_P3_10000_BASE_T: | |
230 | adapter->msix_supported = !!use_msi_x; | |
231 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
232 | break; | |
233 | ||
234 | case NETXEN_BRDTYPE_P2_SB31_10G: | |
235 | case NETXEN_BRDTYPE_P2_SB31_10G_CX4: | |
236 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
237 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
238 | adapter->msix_supported = 0; | |
239 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
240 | break; | |
241 | ||
242 | case NETXEN_BRDTYPE_P3_REF_QG: | |
243 | case NETXEN_BRDTYPE_P3_4_GB: | |
244 | case NETXEN_BRDTYPE_P3_4_GB_MM: | |
ec68db69 | 245 | adapter->msix_supported = !!use_msi_x; |
c7860a2a | 246 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; |
a70f9393 DP |
247 | break; |
248 | ||
2956640d DP |
249 | case NETXEN_BRDTYPE_P2_SB35_4G: |
250 | case NETXEN_BRDTYPE_P2_SB31_2G: | |
251 | adapter->msix_supported = 0; | |
252 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
253 | break; | |
254 | ||
c7860a2a DP |
255 | case NETXEN_BRDTYPE_P3_10G_TP: |
256 | adapter->msix_supported = !!use_msi_x; | |
257 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
258 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; | |
259 | else | |
260 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
261 | break; | |
262 | ||
2956640d DP |
263 | default: |
264 | adapter->msix_supported = 0; | |
265 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
266 | ||
267 | printk(KERN_WARNING "Unknown board type(0x%x)\n", | |
268 | adapter->ahw.boardcfg.board_type); | |
269 | break; | |
270 | } | |
271 | ||
272 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
273 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
274 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
275 | ||
276 | adapter->max_possible_rss_rings = 1; | |
277 | return; | |
278 | } | |
279 | ||
280 | static int | |
281 | netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) | |
282 | { | |
27c915a4 | 283 | u32 val, timeout; |
2956640d DP |
284 | |
285 | if (first_boot == 0x55555555) { | |
286 | /* This is the first boot after power up */ | |
27c915a4 DP |
287 | adapter->pci_write_normalize(adapter, |
288 | NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
289 | ||
290 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
291 | return 0; | |
2956640d DP |
292 | |
293 | /* PCI bus master workaround */ | |
294 | adapter->hw_read_wx(adapter, | |
295 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
296 | if (!(first_boot & 0x4)) { | |
297 | first_boot |= 0x4; | |
298 | adapter->hw_write_wx(adapter, | |
299 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
300 | adapter->hw_read_wx(adapter, | |
301 | NETXEN_PCIE_REG(0x4), &first_boot, 4); | |
302 | } | |
303 | ||
304 | /* This is the first boot after power up */ | |
305 | adapter->hw_read_wx(adapter, | |
306 | NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); | |
307 | if (first_boot != 0x80000f) { | |
308 | /* clear the register for future unloads/loads */ | |
309 | adapter->pci_write_normalize(adapter, | |
310 | NETXEN_CAM_RAM(0x1fc), 0); | |
27c915a4 | 311 | return -EIO; |
2956640d DP |
312 | } |
313 | ||
27c915a4 DP |
314 | /* Start P2 boot loader */ |
315 | val = adapter->pci_read_normalize(adapter, | |
316 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE); | |
317 | adapter->pci_write_normalize(adapter, | |
318 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); | |
319 | timeout = 0; | |
320 | do { | |
321 | msleep(1); | |
322 | val = adapter->pci_read_normalize(adapter, | |
323 | NETXEN_CAM_RAM(0x1fc)); | |
324 | ||
325 | if (++timeout > 5000) | |
326 | return -EIO; | |
327 | ||
328 | } while (val == NETXEN_BDINFO_MAGIC); | |
2956640d | 329 | } |
27c915a4 | 330 | return 0; |
2956640d DP |
331 | } |
332 | ||
333 | static void netxen_set_port_mode(struct netxen_adapter *adapter) | |
334 | { | |
335 | u32 val, data; | |
336 | ||
337 | val = adapter->ahw.boardcfg.board_type; | |
338 | if ((val == NETXEN_BRDTYPE_P3_HMEZ) || | |
339 | (val == NETXEN_BRDTYPE_P3_XG_LOM)) { | |
340 | if (port_mode == NETXEN_PORT_MODE_802_3_AP) { | |
341 | data = NETXEN_PORT_MODE_802_3_AP; | |
342 | adapter->hw_write_wx(adapter, | |
343 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
344 | } else if (port_mode == NETXEN_PORT_MODE_XG) { | |
345 | data = NETXEN_PORT_MODE_XG; | |
346 | adapter->hw_write_wx(adapter, | |
347 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
348 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { | |
349 | data = NETXEN_PORT_MODE_AUTO_NEG_1G; | |
350 | adapter->hw_write_wx(adapter, | |
351 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
352 | } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { | |
353 | data = NETXEN_PORT_MODE_AUTO_NEG_XG; | |
354 | adapter->hw_write_wx(adapter, | |
355 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
356 | } else { | |
357 | data = NETXEN_PORT_MODE_AUTO_NEG; | |
358 | adapter->hw_write_wx(adapter, | |
359 | NETXEN_PORT_MODE_ADDR, &data, 4); | |
360 | } | |
361 | ||
362 | if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && | |
363 | (wol_port_mode != NETXEN_PORT_MODE_XG) && | |
364 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && | |
365 | (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { | |
366 | wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; | |
367 | } | |
368 | adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, | |
369 | &wol_port_mode, 4); | |
370 | } | |
371 | } | |
372 | ||
373 | #define PCI_CAP_ID_GEN 0x10 | |
374 | ||
375 | static void netxen_pcie_strap_init(struct netxen_adapter *adapter) | |
376 | { | |
377 | u32 pdevfuncsave; | |
378 | u32 c8c9value = 0; | |
379 | u32 chicken = 0; | |
380 | u32 control = 0; | |
381 | int i, pos; | |
382 | struct pci_dev *pdev; | |
383 | ||
2956640d DP |
384 | pdev = adapter->pdev; |
385 | ||
386 | adapter->hw_read_wx(adapter, | |
387 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
388 | /* clear chicken3.25:24 */ | |
389 | chicken &= 0xFCFFFFFF; | |
390 | /* | |
391 | * if gen1 and B0, set F1020 - if gen 2, do nothing | |
392 | * if gen2 set to F1000 | |
393 | */ | |
394 | pos = pci_find_capability(pdev, PCI_CAP_ID_GEN); | |
395 | if (pos == 0xC0) { | |
396 | pci_read_config_dword(pdev, pos + 0x10, &control); | |
397 | if ((control & 0x000F0000) != 0x00020000) { | |
398 | /* set chicken3.24 if gen1 */ | |
399 | chicken |= 0x01000000; | |
400 | } | |
401 | printk(KERN_INFO "%s Gen2 strapping detected\n", | |
402 | netxen_nic_driver_name); | |
403 | c8c9value = 0xF1000; | |
404 | } else { | |
405 | /* set chicken3.24 if gen1 */ | |
406 | chicken |= 0x01000000; | |
407 | printk(KERN_INFO "%s Gen1 strapping detected\n", | |
408 | netxen_nic_driver_name); | |
409 | if (adapter->ahw.revision_id == NX_P3_B0) | |
410 | c8c9value = 0xF1020; | |
411 | else | |
412 | c8c9value = 0; | |
413 | ||
414 | } | |
415 | adapter->hw_write_wx(adapter, | |
416 | NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4); | |
417 | ||
418 | if (!c8c9value) | |
419 | return; | |
420 | ||
421 | pdevfuncsave = pdev->devfn; | |
422 | if (pdevfuncsave & 0x07) | |
423 | return; | |
424 | ||
425 | for (i = 0; i < 8; i++) { | |
426 | pci_read_config_dword(pdev, pos + 8, &control); | |
427 | pci_read_config_dword(pdev, pos + 8, &control); | |
428 | pci_write_config_dword(pdev, pos + 8, c8c9value); | |
429 | pdev->devfn++; | |
430 | } | |
431 | pdev->devfn = pdevfuncsave; | |
432 | } | |
433 | ||
434 | static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) | |
435 | { | |
436 | u32 control; | |
437 | int pos; | |
438 | ||
439 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
440 | if (pos) { | |
441 | pci_read_config_dword(pdev, pos, &control); | |
442 | if (enable) | |
443 | control |= PCI_MSIX_FLAGS_ENABLE; | |
444 | else | |
445 | control = 0; | |
446 | pci_write_config_dword(pdev, pos, control); | |
447 | } | |
448 | } | |
449 | ||
450 | static void netxen_init_msix_entries(struct netxen_adapter *adapter) | |
451 | { | |
452 | int i; | |
453 | ||
454 | for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) | |
455 | adapter->msix_entries[i].entry = i; | |
456 | } | |
457 | ||
9dc28efe DP |
458 | static int |
459 | netxen_read_mac_addr(struct netxen_adapter *adapter) | |
460 | { | |
461 | int i; | |
462 | unsigned char *p; | |
463 | __le64 mac_addr; | |
9dc28efe DP |
464 | struct net_device *netdev = adapter->netdev; |
465 | struct pci_dev *pdev = adapter->pdev; | |
466 | ||
467 | if (netxen_is_flash_supported(adapter) != 0) | |
468 | return -EIO; | |
469 | ||
470 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
471 | if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) | |
472 | return -EIO; | |
473 | } else { | |
474 | if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) | |
475 | return -EIO; | |
476 | } | |
477 | ||
478 | p = (unsigned char *)&mac_addr; | |
479 | for (i = 0; i < 6; i++) | |
480 | netdev->dev_addr[i] = *(p + 5 - i); | |
481 | ||
482 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
483 | ||
484 | /* set station address */ | |
485 | ||
e174961c JB |
486 | if (!is_valid_ether_addr(netdev->perm_addr)) |
487 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); | |
488 | else | |
9dc28efe DP |
489 | adapter->macaddr_set(adapter, netdev->dev_addr); |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
1abd266f SH |
494 | static void netxen_set_multicast_list(struct net_device *dev) |
495 | { | |
496 | struct netxen_adapter *adapter = netdev_priv(dev); | |
497 | ||
498 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
499 | netxen_p3_nic_set_multi(dev); | |
500 | else | |
501 | netxen_p2_nic_set_multi(dev); | |
502 | } | |
503 | ||
504 | static const struct net_device_ops netxen_netdev_ops = { | |
505 | .ndo_open = netxen_nic_open, | |
506 | .ndo_stop = netxen_nic_close, | |
507 | .ndo_start_xmit = netxen_nic_xmit_frame, | |
508 | .ndo_get_stats = netxen_nic_get_stats, | |
509 | .ndo_validate_addr = eth_validate_addr, | |
510 | .ndo_set_multicast_list = netxen_set_multicast_list, | |
511 | .ndo_set_mac_address = netxen_nic_set_mac, | |
512 | .ndo_change_mtu = netxen_nic_change_mtu, | |
513 | .ndo_tx_timeout = netxen_tx_timeout, | |
514 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
515 | .ndo_poll_controller = netxen_nic_poll_controller, | |
516 | #endif | |
517 | }; | |
518 | ||
3d396eb1 AK |
519 | /* |
520 | * netxen_nic_probe() | |
521 | * | |
522 | * The Linux system will invoke this after identifying the vendor ID and | |
523 | * device Id in the pci_tbl supported by this module. | |
524 | * | |
525 | * A quad port card has one operational PCI config space, (function 0), | |
526 | * which is used to access all four ports. | |
527 | * | |
528 | * This routine will initialize the adapter, and setup the global parameters | |
529 | * along with the port's specific structure. | |
530 | */ | |
531 | static int __devinit | |
532 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
533 | { | |
534 | struct net_device *netdev = NULL; | |
535 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
536 | void __iomem *mem_ptr0 = NULL; |
537 | void __iomem *mem_ptr1 = NULL; | |
538 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
539 | unsigned long first_page_group_end; |
540 | unsigned long first_page_group_start; | |
541 | ||
cb8011ad | 542 | |
a608ab9c | 543 | u8 __iomem *db_ptr = NULL; |
2956640d DP |
544 | unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0; |
545 | int i = 0, err; | |
546 | int first_driver, first_boot; | |
6c80b18d | 547 | u32 val; |
3176ff3e | 548 | int pci_func_id = PCI_FUNC(pdev->devfn); |
2956640d DP |
549 | struct netxen_legacy_intr_set *legacy_intrp; |
550 | uint8_t revision_id; | |
3d396eb1 | 551 | |
dcd56fdb | 552 | if (pci_func_id == 0) |
2956640d | 553 | printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
6c80b18d | 554 | |
3176ff3e | 555 | if (pdev->class != 0x020000) { |
dcd56fdb | 556 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 557 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
558 | return -ENODEV; |
559 | } | |
2956640d | 560 | |
11d89d63 DP |
561 | if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) { |
562 | printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x" | |
563 | "will not be enabled.\n", | |
564 | NX_P3_A0, NX_P3_B1); | |
565 | return -ENODEV; | |
566 | } | |
567 | ||
3d396eb1 AK |
568 | if ((err = pci_enable_device(pdev))) |
569 | return err; | |
2956640d | 570 | |
3d396eb1 AK |
571 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
572 | err = -ENODEV; | |
573 | goto err_out_disable_pdev; | |
574 | } | |
575 | ||
576 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
577 | goto err_out_disable_pdev; | |
578 | ||
579 | pci_set_master(pdev); | |
3176ff3e MT |
580 | |
581 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
582 | if(!netdev) { | |
583 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
584 | "device block.Check system memory resource" | |
585 | " usage.\n", netxen_nic_driver_name); | |
586 | goto err_out_free_res; | |
587 | } | |
588 | ||
3176ff3e MT |
589 | SET_NETDEV_DEV(netdev, &pdev->dev); |
590 | ||
4cf1653a | 591 | adapter = netdev_priv(netdev); |
2956640d DP |
592 | adapter->netdev = netdev; |
593 | adapter->pdev = pdev; | |
13ba9c77 | 594 | adapter->ahw.pci_func = pci_func_id; |
2956640d DP |
595 | |
596 | revision_id = pdev->revision; | |
597 | adapter->ahw.revision_id = revision_id; | |
598 | ||
599 | err = nx_set_dma_mask(adapter, revision_id); | |
600 | if (err) | |
601 | goto err_out_free_netdev; | |
602 | ||
3ce06a32 DP |
603 | rwlock_init(&adapter->adapter_lock); |
604 | adapter->ahw.qdr_sn_window = -1; | |
605 | adapter->ahw.ddr_mn_window = -1; | |
13ba9c77 | 606 | |
3d396eb1 AK |
607 | /* remap phys address */ |
608 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
609 | mem_len = pci_resource_len(pdev, 0); | |
3ce06a32 DP |
610 | pci_len0 = 0; |
611 | ||
612 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
613 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
614 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
615 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
616 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
617 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
618 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
619 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
620 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
3d396eb1 AK |
621 | |
622 | /* 128 Meg of memory */ | |
6c80b18d MT |
623 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
624 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
625 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
626 | SECOND_PAGE_GROUP_SIZE); | |
627 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
628 | THIRD_PAGE_GROUP_SIZE); | |
629 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
630 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
631 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
632 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
633 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
634 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
635 | first_page_group_start = 0; | |
636 | first_page_group_end = 0; | |
3ce06a32 DP |
637 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
638 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
639 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
640 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
641 | adapter->pci_write_immediate = | |
642 | netxen_nic_pci_write_immediate_2M; | |
643 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
644 | adapter->pci_write_normalize = | |
645 | netxen_nic_pci_write_normalize_2M; | |
646 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
647 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
648 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
649 | ||
650 | mem_ptr0 = ioremap(mem_base, mem_len); | |
651 | pci_len0 = mem_len; | |
652 | first_page_group_start = 0; | |
653 | first_page_group_end = 0; | |
654 | ||
655 | adapter->ahw.ddr_mn_window = 0; | |
656 | adapter->ahw.qdr_sn_window = 0; | |
657 | ||
658 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
659 | (pci_func_id * 0x20); | |
660 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
661 | if (pci_func_id < 4) | |
662 | adapter->ahw.ms_win_crb += (pci_func_id * 0x20); | |
663 | else | |
664 | adapter->ahw.ms_win_crb += | |
665 | 0xA0 + ((pci_func_id - 4) * 0x10); | |
6c80b18d | 666 | } else { |
4790654c | 667 | err = -EIO; |
6c80b18d MT |
668 | goto err_out_free_netdev; |
669 | } | |
cb8011ad | 670 | |
3ce06a32 | 671 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
cb8011ad | 672 | |
ed25ffa1 AK |
673 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
674 | db_len = pci_resource_len(pdev, 4); | |
675 | ||
676 | if (db_len == 0) { | |
677 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
2956640d | 678 | netxen_nic_driver_name); |
ed25ffa1 AK |
679 | err = -EIO; |
680 | goto err_out_iounmap; | |
681 | } | |
682 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
683 | db_len); | |
684 | ||
685 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 686 | if (!db_ptr) { |
ed25ffa1 | 687 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
2956640d | 688 | netxen_nic_driver_name); |
ed25ffa1 AK |
689 | err = -EIO; |
690 | goto err_out_iounmap; | |
3d396eb1 | 691 | } |
ed25ffa1 | 692 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 693 | |
6c80b18d | 694 | adapter->ahw.pci_base0 = mem_ptr0; |
3ce06a32 | 695 | adapter->ahw.pci_len0 = pci_len0; |
6c80b18d MT |
696 | adapter->ahw.first_page_group_start = first_page_group_start; |
697 | adapter->ahw.first_page_group_end = first_page_group_end; | |
698 | adapter->ahw.pci_base1 = mem_ptr1; | |
699 | adapter->ahw.pci_base2 = mem_ptr2; | |
700 | adapter->ahw.db_base = db_ptr; | |
701 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 702 | |
bea3348e | 703 | netif_napi_add(netdev, &adapter->napi, |
2956640d DP |
704 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); |
705 | ||
706 | if (revision_id >= NX_P3_B0) | |
707 | legacy_intrp = &legacy_intr[pci_func_id]; | |
708 | else | |
709 | legacy_intrp = &legacy_intr[0]; | |
710 | ||
711 | adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; | |
712 | adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; | |
713 | adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; | |
714 | adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; | |
bea3348e | 715 | |
2d1a3bbd | 716 | /* this will be read from FW later */ |
717 | adapter->intr_scheme = -1; | |
443be796 | 718 | adapter->msi_mode = -1; |
2d1a3bbd | 719 | |
720 | /* This will be reset for mezz cards */ | |
3176ff3e | 721 | adapter->portnum = pci_func_id; |
2d1a3bbd | 722 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 723 | adapter->rx_csum = 1; |
623621b0 | 724 | adapter->mc_enabled = 0; |
83821a07 | 725 | if (NX_IS_REVISION_P3(revision_id)) |
2956640d | 726 | adapter->max_mc_count = 38; |
83821a07 | 727 | else |
2956640d | 728 | adapter->max_mc_count = 16; |
3176ff3e | 729 | |
1abd266f | 730 | netdev->netdev_ops = &netxen_netdev_ops; |
05aaa02d | 731 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
732 | |
733 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
734 | ||
735 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
1abd266f | 736 | |
3176ff3e MT |
737 | /* ScatterGather support */ |
738 | netdev->features = NETIF_F_SG; | |
739 | netdev->features |= NETIF_F_IP_CSUM; | |
740 | netdev->features |= NETIF_F_TSO; | |
cd1f8160 DP |
741 | if (NX_IS_REVISION_P3(revision_id)) { |
742 | netdev->features |= NETIF_F_IPV6_CSUM; | |
2956640d | 743 | netdev->features |= NETIF_F_TSO6; |
cd1f8160 | 744 | } |
3176ff3e | 745 | |
2956640d | 746 | if (adapter->pci_using_dac) |
3176ff3e MT |
747 | netdev->features |= NETIF_F_HIGHDMA; |
748 | ||
6c80b18d MT |
749 | /* |
750 | * Set the CRB window to invalid. If any register in window 0 is | |
751 | * accessed it should set the window to 0 and then reset it to 1. | |
752 | */ | |
753 | adapter->curr_window = 255; | |
754 | ||
dcd56fdb DP |
755 | if (netxen_nic_get_board_info(adapter) != 0) { |
756 | printk("%s: Error getting board config info.\n", | |
2956640d | 757 | netxen_nic_driver_name); |
dcd56fdb DP |
758 | err = -EIO; |
759 | goto err_out_iounmap; | |
760 | } | |
6c80b18d | 761 | |
6c80b18d MT |
762 | netxen_initialize_adapter_ops(adapter); |
763 | ||
13ba9c77 | 764 | /* Mezz cards have PCI function 0,2,3 enabled */ |
dc515f2e DP |
765 | switch (adapter->ahw.boardcfg.board_type) { |
766 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
767 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
768 | if (pci_func_id >= 2) | |
13ba9c77 | 769 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
770 | break; |
771 | default: | |
772 | break; | |
773 | } | |
13ba9c77 | 774 | |
2956640d DP |
775 | /* |
776 | * This call will setup various max rx/tx counts. | |
777 | * It must be done before any buffer/ring allocations. | |
778 | */ | |
779 | netxen_check_options(adapter); | |
3d396eb1 | 780 | |
2956640d DP |
781 | first_driver = 0; |
782 | if (NX_IS_REVISION_P3(revision_id)) { | |
783 | if (adapter->ahw.pci_func == 0) | |
784 | first_driver = 1; | |
785 | } else { | |
786 | if (adapter->portnum == 0) | |
787 | first_driver = 1; | |
788 | } | |
3d396eb1 | 789 | |
2956640d DP |
790 | if (first_driver) { |
791 | first_boot = adapter->pci_read_normalize(adapter, | |
792 | NETXEN_CAM_RAM(0x1fc)); | |
3176ff3e | 793 | |
2956640d DP |
794 | err = netxen_check_hw_init(adapter, first_boot); |
795 | if (err) { | |
796 | printk(KERN_ERR "%s: error in init HW init sequence\n", | |
797 | netxen_nic_driver_name); | |
798 | goto err_out_iounmap; | |
3176ff3e | 799 | } |
3176ff3e | 800 | |
2956640d DP |
801 | if (NX_IS_REVISION_P3(revision_id)) |
802 | netxen_set_port_mode(adapter); | |
803 | ||
804 | if (first_boot != 0x55555555) { | |
3ce06a32 DP |
805 | adapter->pci_write_normalize(adapter, |
806 | CRB_CMDPEG_STATE, 0); | |
439b454e DP |
807 | netxen_pinit_from_rom(adapter, 0); |
808 | msleep(1); | |
2956640d | 809 | } |
27c915a4 | 810 | netxen_load_firmware(adapter); |
2956640d DP |
811 | |
812 | if (NX_IS_REVISION_P3(revision_id)) | |
813 | netxen_pcie_strap_init(adapter); | |
814 | ||
815 | if (NX_IS_REVISION_P2(revision_id)) { | |
623621b0 DP |
816 | |
817 | /* Initialize multicast addr pool owners */ | |
818 | val = 0x7654; | |
819 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
820 | val |= 0x0f000000; | |
821 | netxen_crb_writelit_adapter(adapter, | |
822 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
823 | ||
6c80b18d | 824 | } |
96acb6eb | 825 | |
2956640d DP |
826 | err = netxen_initialize_adapter_offload(adapter); |
827 | if (err) | |
828 | goto err_out_iounmap; | |
6c80b18d MT |
829 | |
830 | /* | |
831 | * Tell the hardware our version number. | |
832 | */ | |
4790654c | 833 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
834 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
835 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
3ce06a32 | 836 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); |
3d396eb1 | 837 | |
3176ff3e | 838 | /* Handshake with the card before we register the devices. */ |
27c915a4 DP |
839 | err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
840 | if (err) | |
841 | goto err_out_free_offload; | |
2956640d | 842 | |
2956640d DP |
843 | } /* first_driver */ |
844 | ||
845 | netxen_nic_flash_print(adapter); | |
3d396eb1 | 846 | |
d9e651bc DP |
847 | if (NX_IS_REVISION_P3(revision_id)) { |
848 | adapter->hw_read_wx(adapter, | |
849 | NETXEN_MIU_MN_CONTROL, &val, 4); | |
850 | adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; | |
851 | dev_info(&pdev->dev, "firmware running in %s mode\n", | |
852 | adapter->ahw.cut_through ? "cut through" : "legacy"); | |
853 | } | |
854 | ||
3d396eb1 | 855 | /* |
6c80b18d | 856 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 857 | */ |
dcd56fdb | 858 | adapter->physical_port = adapter->portnum; |
3ce06a32 | 859 | i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum)); |
6c80b18d | 860 | if (i != 0x55555555) |
3276fbad | 861 | adapter->physical_port = i; |
6c80b18d | 862 | |
2956640d DP |
863 | adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
864 | ||
865 | netxen_set_msix_bit(pdev, 0); | |
866 | ||
867 | if (NX_IS_REVISION_P3(revision_id)) { | |
868 | if ((mem_len != NETXEN_PCI_128MB_SIZE) && | |
869 | mem_len != NETXEN_PCI_2MB_SIZE) | |
870 | adapter->msix_supported = 0; | |
871 | } | |
872 | ||
873 | if (adapter->msix_supported) { | |
874 | ||
875 | netxen_init_msix_entries(adapter); | |
876 | ||
877 | if (pci_enable_msix(pdev, adapter->msix_entries, | |
878 | MSIX_ENTRIES_PER_ADAPTER)) | |
879 | goto request_msi; | |
880 | ||
881 | adapter->flags |= NETXEN_NIC_MSIX_ENABLED; | |
882 | netxen_set_msix_bit(pdev, 1); | |
883 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
884 | ||
885 | } else { | |
886 | request_msi: | |
887 | if (use_msi && !pci_enable_msi(pdev)) { | |
888 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; | |
889 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
890 | } else | |
891 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
892 | } | |
893 | ||
894 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
895 | netdev->irq = adapter->msix_entries[0].vector; | |
896 | else | |
897 | netdev->irq = pdev->irq; | |
898 | ||
899 | err = netxen_receive_peg_ready(adapter); | |
900 | if (err) | |
901 | goto err_out_disable_msi; | |
902 | ||
903 | init_timer(&adapter->watchdog_timer); | |
2956640d DP |
904 | adapter->watchdog_timer.function = &netxen_watchdog; |
905 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
906 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); | |
907 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
908 | ||
9dc28efe DP |
909 | err = netxen_read_mac_addr(adapter); |
910 | if (err) | |
911 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
2956640d | 912 | |
3176ff3e MT |
913 | netif_carrier_off(netdev); |
914 | netif_stop_queue(netdev); | |
915 | ||
6c80b18d MT |
916 | if ((err = register_netdev(netdev))) { |
917 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
918 | " aborting\n", netxen_nic_driver_name, | |
919 | adapter->portnum); | |
920 | err = -EIO; | |
2956640d | 921 | goto err_out_disable_msi; |
6c80b18d MT |
922 | } |
923 | ||
924 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 | 925 | |
2956640d DP |
926 | switch (adapter->ahw.board_type) { |
927 | case NETXEN_NIC_GBE: | |
928 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
929 | adapter->netdev->name); | |
930 | break; | |
931 | case NETXEN_NIC_XGBE: | |
932 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
933 | adapter->netdev->name); | |
934 | break; | |
3d396eb1 | 935 | } |
3d396eb1 | 936 | |
2956640d DP |
937 | return 0; |
938 | ||
939 | err_out_disable_msi: | |
940 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) | |
941 | pci_disable_msix(pdev); | |
6c80b18d MT |
942 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
943 | pci_disable_msi(pdev); | |
944 | ||
27c915a4 | 945 | err_out_free_offload: |
2956640d DP |
946 | if (first_driver) |
947 | netxen_free_adapter_offload(adapter); | |
3d396eb1 | 948 | |
2956640d | 949 | err_out_iounmap: |
ed25ffa1 AK |
950 | if (db_ptr) |
951 | iounmap(db_ptr); | |
952 | ||
ed25ffa1 AK |
953 | if (mem_ptr0) |
954 | iounmap(mem_ptr0); | |
955 | if (mem_ptr1) | |
956 | iounmap(mem_ptr1); | |
957 | if (mem_ptr2) | |
958 | iounmap(mem_ptr2); | |
cb8011ad | 959 | |
6c80b18d MT |
960 | err_out_free_netdev: |
961 | free_netdev(netdev); | |
962 | ||
963 | err_out_free_res: | |
3d396eb1 | 964 | pci_release_regions(pdev); |
6c80b18d MT |
965 | |
966 | err_out_disable_pdev: | |
2956640d | 967 | pci_set_drvdata(pdev, NULL); |
3d396eb1 AK |
968 | pci_disable_device(pdev); |
969 | return err; | |
970 | } | |
971 | ||
972 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
973 | { | |
974 | struct netxen_adapter *adapter; | |
3176ff3e | 975 | struct net_device *netdev; |
3d396eb1 | 976 | |
6c80b18d | 977 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
978 | if (adapter == NULL) |
979 | return; | |
980 | ||
6c80b18d MT |
981 | netdev = adapter->netdev; |
982 | ||
96acb6eb DP |
983 | unregister_netdev(netdev); |
984 | ||
96acb6eb | 985 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
3d396eb1 | 986 | netxen_free_hw_resources(adapter); |
9e410778 | 987 | netxen_release_rx_buffers(adapter); |
2956640d | 988 | netxen_free_sw_resources(adapter); |
06e9d9f9 DP |
989 | |
990 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
991 | netxen_p3_free_mac_list(adapter); | |
96acb6eb | 992 | } |
3d396eb1 | 993 | |
439b454e DP |
994 | if (adapter->portnum == 0) |
995 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 996 | |
3052246c | 997 | if (adapter->irq) |
998 | free_irq(adapter->irq, adapter); | |
999 | ||
2956640d DP |
1000 | if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
1001 | pci_disable_msix(pdev); | |
3052246c | 1002 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
1003 | pci_disable_msi(pdev); | |
1004 | ||
6c80b18d MT |
1005 | iounmap(adapter->ahw.db_base); |
1006 | iounmap(adapter->ahw.pci_base0); | |
1007 | iounmap(adapter->ahw.pci_base1); | |
1008 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
1009 | |
1010 | pci_release_regions(pdev); | |
3052246c | 1011 | pci_disable_device(pdev); |
595e3fb8 MT |
1012 | pci_set_drvdata(pdev, NULL); |
1013 | ||
6c80b18d | 1014 | free_netdev(netdev); |
3d396eb1 AK |
1015 | } |
1016 | ||
1017 | /* | |
1018 | * Called when a network interface is made active | |
1019 | * @returns 0 on success, negative value on failure | |
1020 | */ | |
1021 | static int netxen_nic_open(struct net_device *netdev) | |
1022 | { | |
4cf1653a | 1023 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1024 | int err = 0; |
1025 | int ctx, ring; | |
05aaa02d DP |
1026 | irq_handler_t handler; |
1027 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 | 1028 | |
dcd56fdb DP |
1029 | if (adapter->driver_mismatch) |
1030 | return -EIO; | |
1031 | ||
3d396eb1 AK |
1032 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
1033 | err = netxen_init_firmware(adapter); | |
1034 | if (err != 0) { | |
1035 | printk(KERN_ERR "Failed to init firmware\n"); | |
1036 | return -EIO; | |
1037 | } | |
3d396eb1 | 1038 | |
83821a07 DP |
1039 | if (adapter->fw_major < 4) |
1040 | adapter->max_rds_rings = 3; | |
1041 | else | |
1042 | adapter->max_rds_rings = 2; | |
1043 | ||
2956640d | 1044 | err = netxen_alloc_sw_resources(adapter); |
3d396eb1 | 1045 | if (err) { |
2956640d DP |
1046 | printk(KERN_ERR "%s: Error in setting sw resources\n", |
1047 | netdev->name); | |
3d396eb1 AK |
1048 | return err; |
1049 | } | |
2956640d DP |
1050 | |
1051 | netxen_nic_clear_stats(adapter); | |
1052 | ||
1053 | err = netxen_alloc_hw_resources(adapter); | |
1054 | if (err) { | |
1055 | printk(KERN_ERR "%s: Error in setting hw resources\n", | |
1056 | netdev->name); | |
1057 | goto err_out_free_sw; | |
1058 | } | |
1059 | ||
092bc571 DP |
1060 | if ((adapter->msi_mode != MSI_MODE_MULTIFUNC) || |
1061 | (adapter->intr_scheme != INTR_SCHEME_PERPORT)) { | |
1062 | printk(KERN_ERR "%s: Firmware interrupt scheme is " | |
1063 | "incompatible with driver\n", | |
1064 | netdev->name); | |
1065 | adapter->driver_mismatch = 1; | |
1066 | goto err_out_free_hw; | |
1067 | } | |
1068 | ||
2956640d DP |
1069 | if (adapter->fw_major < 4) { |
1070 | adapter->crb_addr_cmd_producer = | |
1071 | crb_cmd_producer[adapter->portnum]; | |
1072 | adapter->crb_addr_cmd_consumer = | |
1073 | crb_cmd_consumer[adapter->portnum]; | |
2956640d | 1074 | |
83821a07 DP |
1075 | netxen_nic_update_cmd_producer(adapter, 0); |
1076 | netxen_nic_update_cmd_consumer(adapter, 0); | |
1077 | } | |
2956640d | 1078 | |
3d396eb1 | 1079 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
48bfd1e0 | 1080 | for (ring = 0; ring < adapter->max_rds_rings; ring++) |
3d396eb1 | 1081 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 1082 | } |
2956640d | 1083 | if (NETXEN_IS_MSI_FAMILY(adapter)) |
05aaa02d DP |
1084 | handler = netxen_msi_intr; |
1085 | else { | |
1086 | flags |= IRQF_SHARED; | |
1087 | handler = netxen_intr; | |
1088 | } | |
2956640d | 1089 | adapter->irq = netdev->irq; |
05aaa02d DP |
1090 | err = request_irq(adapter->irq, handler, |
1091 | flags, netdev->name, adapter); | |
3d396eb1 AK |
1092 | if (err) { |
1093 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
9e410778 | 1094 | goto err_out_free_rxbuf; |
3d396eb1 | 1095 | } |
ed25ffa1 AK |
1096 | |
1097 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
1098 | } | |
2956640d | 1099 | |
3d396eb1 AK |
1100 | /* Done here again so that even if phantom sw overwrote it, |
1101 | * we set it */ | |
c9fc891f | 1102 | err = adapter->init_port(adapter, adapter->physical_port); |
2956640d | 1103 | if (err) { |
595e3fb8 MT |
1104 | printk(KERN_ERR "%s: Failed to initialize port %d\n", |
1105 | netxen_nic_driver_name, adapter->portnum); | |
2956640d | 1106 | goto err_out_free_irq; |
595e3fb8 | 1107 | } |
2956640d | 1108 | adapter->macaddr_set(adapter, netdev->dev_addr); |
595e3fb8 | 1109 | |
3176ff3e | 1110 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 | 1111 | |
1abd266f | 1112 | netxen_set_multicast_list(netdev); |
9ad27643 | 1113 | if (adapter->set_mtu) |
c9fc891f | 1114 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 1115 | |
922c4f2c | 1116 | adapter->ahw.linkup = 0; |
dcd56fdb | 1117 | mod_timer(&adapter->watchdog_timer, jiffies); |
05aaa02d DP |
1118 | |
1119 | napi_enable(&adapter->napi); | |
1120 | netxen_nic_enable_int(adapter); | |
1121 | ||
dcd56fdb | 1122 | netif_start_queue(netdev); |
3d396eb1 AK |
1123 | |
1124 | return 0; | |
2956640d DP |
1125 | |
1126 | err_out_free_irq: | |
1127 | free_irq(adapter->irq, adapter); | |
9e410778 DP |
1128 | err_out_free_rxbuf: |
1129 | netxen_release_rx_buffers(adapter); | |
092bc571 | 1130 | err_out_free_hw: |
2956640d DP |
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 | ||
922c4f2c DP |
1155 | FLUSH_SCHEDULED_WORK(); |
1156 | del_timer_sync(&adapter->watchdog_timer); | |
3d396eb1 AK |
1157 | |
1158 | return 0; | |
1159 | } | |
1160 | ||
391587c3 | 1161 | static bool netxen_tso_check(struct net_device *netdev, |
cd1f8160 DP |
1162 | struct cmd_desc_type0 *desc, struct sk_buff *skb) |
1163 | { | |
391587c3 DP |
1164 | bool tso = false; |
1165 | u8 opcode = TX_ETHER_PKT; | |
cd1f8160 | 1166 | |
391587c3 DP |
1167 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
1168 | skb_shinfo(skb)->gso_size > 0) { | |
1169 | ||
1170 | desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1171 | desc->total_hdr_length = | |
1172 | skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1173 | ||
1174 | opcode = (skb->protocol == htons(ETH_P_IPV6)) ? | |
1175 | TX_TCP_LSO6 : TX_TCP_LSO; | |
1176 | tso = true; | |
cd1f8160 DP |
1177 | |
1178 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
391587c3 DP |
1179 | u8 l4proto; |
1180 | ||
1181 | if (skb->protocol == htons(ETH_P_IP)) { | |
1182 | l4proto = ip_hdr(skb)->protocol; | |
1183 | ||
1184 | if (l4proto == IPPROTO_TCP) | |
1185 | opcode = TX_TCP_PKT; | |
1186 | else if(l4proto == IPPROTO_UDP) | |
1187 | opcode = TX_UDP_PKT; | |
1188 | } else if (skb->protocol == htons(ETH_P_IPV6)) { | |
1189 | l4proto = ipv6_hdr(skb)->nexthdr; | |
1190 | ||
1191 | if (l4proto == IPPROTO_TCP) | |
1192 | opcode = TX_TCPV6_PKT; | |
1193 | else if(l4proto == IPPROTO_UDP) | |
1194 | opcode = TX_UDPV6_PKT; | |
1195 | } | |
cd1f8160 DP |
1196 | } |
1197 | desc->tcp_hdr_offset = skb_transport_offset(skb); | |
1198 | desc->ip_hdr_offset = skb_network_offset(skb); | |
391587c3 DP |
1199 | netxen_set_tx_flags_opcode(desc, 0, opcode); |
1200 | return tso; | |
cd1f8160 DP |
1201 | } |
1202 | ||
3d396eb1 AK |
1203 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1204 | { | |
3176ff3e | 1205 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
1206 | struct netxen_hardware_context *hw = &adapter->ahw; |
1207 | unsigned int first_seg_len = skb->len - skb->data_len; | |
391587c3 | 1208 | struct netxen_cmd_buffer *pbuf; |
3d396eb1 | 1209 | struct netxen_skb_frag *buffrag; |
391587c3 DP |
1210 | struct cmd_desc_type0 *hwdesc; |
1211 | int i, k; | |
3d396eb1 | 1212 | |
ba53e6b4 | 1213 | u32 producer, consumer; |
391587c3 | 1214 | int frag_count, no_of_desc; |
ba53e6b4 | 1215 | u32 num_txd = adapter->max_tx_desc_count; |
391587c3 | 1216 | bool is_tso = false; |
3d396eb1 | 1217 | |
3d396eb1 AK |
1218 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
1219 | ||
3d396eb1 AK |
1220 | /* There 4 fragments per descriptor */ |
1221 | no_of_desc = (frag_count + 3) >> 2; | |
53a01e00 | 1222 | |
ba53e6b4 DP |
1223 | producer = adapter->cmd_producer; |
1224 | smp_mb(); | |
1225 | consumer = adapter->last_cmd_consumer; | |
1226 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
1227 | netif_stop_queue(netdev); | |
1228 | smp_mb(); | |
1229 | return NETDEV_TX_BUSY; | |
53a01e00 | 1230 | } |
3d396eb1 | 1231 | |
3d396eb1 | 1232 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
1233 | hwdesc = &hw->cmd_desc_head[producer]; |
1234 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1235 | /* Take skb->data itself */ | |
1236 | pbuf = &adapter->cmd_buf_arr[producer]; | |
391587c3 DP |
1237 | |
1238 | is_tso = netxen_tso_check(netdev, hwdesc, skb); | |
1239 | ||
3d396eb1 | 1240 | pbuf->skb = skb; |
3d396eb1 | 1241 | pbuf->frag_count = frag_count; |
3d396eb1 | 1242 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1243 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1244 | PCI_DMA_TODEVICE); |
1245 | buffrag->length = first_seg_len; | |
391587c3 DP |
1246 | netxen_set_tx_frags_len(hwdesc, frag_count, skb->len); |
1247 | netxen_set_tx_port(hwdesc, adapter->portnum); | |
3d396eb1 | 1248 | |
3d396eb1 AK |
1249 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1250 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1251 | ||
1252 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1253 | struct skb_frag_struct *frag; | |
1254 | int len, temp_len; | |
1255 | unsigned long offset; | |
1256 | dma_addr_t temp_dma; | |
1257 | ||
1258 | /* move to next desc. if there is a need */ | |
1259 | if ((i & 0x3) == 0) { | |
1260 | k = 0; | |
ba53e6b4 | 1261 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1262 | hwdesc = &hw->cmd_desc_head[producer]; |
1263 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1264 | pbuf = &adapter->cmd_buf_arr[producer]; |
1265 | pbuf->skb = NULL; | |
3d396eb1 AK |
1266 | } |
1267 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1268 | len = frag->size; | |
1269 | offset = frag->page_offset; | |
1270 | ||
1271 | temp_len = len; | |
3176ff3e | 1272 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1273 | len, PCI_DMA_TODEVICE); |
1274 | ||
1275 | buffrag++; | |
1276 | buffrag->dma = temp_dma; | |
1277 | buffrag->length = temp_len; | |
1278 | ||
3d396eb1 AK |
1279 | switch (k) { |
1280 | case 0: | |
1281 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1282 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1283 | break; | |
1284 | case 1: | |
1285 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1286 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1287 | break; | |
1288 | case 2: | |
1289 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1290 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1291 | break; | |
1292 | case 3: | |
a608ab9c | 1293 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1294 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1295 | break; | |
1296 | } | |
1297 | frag++; | |
1298 | } | |
ba53e6b4 | 1299 | producer = get_next_index(producer, num_txd); |
3d396eb1 | 1300 | |
3d396eb1 AK |
1301 | /* For LSO, we need to copy the MAC/IP/TCP headers into |
1302 | * the descriptor ring | |
1303 | */ | |
391587c3 | 1304 | if (is_tso) { |
3d396eb1 | 1305 | int hdr_len, first_hdr_len, more_hdr; |
391587c3 | 1306 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
ed25ffa1 AK |
1307 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1308 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1309 | more_hdr = 1; |
1310 | } else { | |
1311 | first_hdr_len = hdr_len; | |
1312 | more_hdr = 0; | |
1313 | } | |
1314 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1315 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1316 | pbuf = &adapter->cmd_buf_arr[producer]; |
1317 | pbuf->skb = NULL; | |
3d396eb1 AK |
1318 | |
1319 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1320 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1321 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1322 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1323 | |
1324 | if (more_hdr) { | |
1325 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1326 | pbuf = &adapter->cmd_buf_arr[producer]; |
1327 | pbuf->skb = NULL; | |
3d396eb1 AK |
1328 | /* copy the next 64 bytes - should be enough except |
1329 | * for pathological case | |
1330 | */ | |
d626f62b ACM |
1331 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1332 | hwdesc, | |
1333 | (hdr_len - | |
1334 | first_hdr_len)); | |
ba53e6b4 | 1335 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1336 | } |
1337 | } | |
6c80b18d | 1338 | |
ba53e6b4 | 1339 | adapter->cmd_producer = producer; |
5dc16268 | 1340 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1341 | |
ba53e6b4 | 1342 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1343 | |
ba53e6b4 | 1344 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1345 | netdev->trans_start = jiffies; |
1346 | ||
3d396eb1 AK |
1347 | return NETDEV_TX_OK; |
1348 | } | |
1349 | ||
a97342f9 DP |
1350 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
1351 | { | |
1352 | struct net_device *netdev = adapter->netdev; | |
1353 | uint32_t temp, temp_state, temp_val; | |
1354 | int rv = 0; | |
1355 | ||
1356 | temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE); | |
1357 | ||
1358 | temp_state = nx_get_temp_state(temp); | |
1359 | temp_val = nx_get_temp_val(temp); | |
1360 | ||
1361 | if (temp_state == NX_TEMP_PANIC) { | |
1362 | printk(KERN_ALERT | |
1363 | "%s: Device temperature %d degrees C exceeds" | |
1364 | " maximum allowed. Hardware has been shut down.\n", | |
1365 | netxen_nic_driver_name, temp_val); | |
1366 | ||
1367 | netif_carrier_off(netdev); | |
1368 | netif_stop_queue(netdev); | |
1369 | rv = 1; | |
1370 | } else if (temp_state == NX_TEMP_WARN) { | |
1371 | if (adapter->temp == NX_TEMP_NORMAL) { | |
1372 | printk(KERN_ALERT | |
1373 | "%s: Device temperature %d degrees C " | |
1374 | "exceeds operating range." | |
1375 | " Immediate action needed.\n", | |
1376 | netxen_nic_driver_name, temp_val); | |
1377 | } | |
1378 | } else { | |
1379 | if (adapter->temp == NX_TEMP_WARN) { | |
1380 | printk(KERN_INFO | |
1381 | "%s: Device temperature is now %d degrees C" | |
1382 | " in normal range.\n", netxen_nic_driver_name, | |
1383 | temp_val); | |
1384 | } | |
1385 | } | |
1386 | adapter->temp = temp_state; | |
1387 | return rv; | |
1388 | } | |
1389 | ||
1390 | static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) | |
1391 | { | |
1392 | struct net_device *netdev = adapter->netdev; | |
1393 | u32 val, port, linkup; | |
1394 | ||
1395 | port = adapter->physical_port; | |
1396 | ||
24a7a455 DP |
1397 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
1398 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); | |
1399 | val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); | |
1400 | linkup = (val == XG_LINK_UP_P3); | |
c9fc891f | 1401 | } else { |
24a7a455 DP |
1402 | val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); |
1403 | if (adapter->ahw.board_type == NETXEN_NIC_GBE) | |
1404 | linkup = (val >> port) & 1; | |
1405 | else { | |
c9fc891f DP |
1406 | val = (val >> port*8) & 0xff; |
1407 | linkup = (val == XG_LINK_UP); | |
c9fc891f | 1408 | } |
a97342f9 DP |
1409 | } |
1410 | ||
1411 | if (adapter->ahw.linkup && !linkup) { | |
1412 | printk(KERN_INFO "%s: %s NIC Link is down\n", | |
1413 | netxen_nic_driver_name, netdev->name); | |
1414 | adapter->ahw.linkup = 0; | |
1415 | if (netif_running(netdev)) { | |
1416 | netif_carrier_off(netdev); | |
1417 | netif_stop_queue(netdev); | |
1418 | } | |
c7860a2a DP |
1419 | |
1420 | netxen_nic_set_link_parameters(adapter); | |
a97342f9 DP |
1421 | } else if (!adapter->ahw.linkup && linkup) { |
1422 | printk(KERN_INFO "%s: %s NIC Link is up\n", | |
1423 | netxen_nic_driver_name, netdev->name); | |
1424 | adapter->ahw.linkup = 1; | |
1425 | if (netif_running(netdev)) { | |
1426 | netif_carrier_on(netdev); | |
1427 | netif_wake_queue(netdev); | |
1428 | } | |
c7860a2a DP |
1429 | |
1430 | netxen_nic_set_link_parameters(adapter); | |
a97342f9 DP |
1431 | } |
1432 | } | |
1433 | ||
3d396eb1 AK |
1434 | static void netxen_watchdog(unsigned long v) |
1435 | { | |
1436 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1437 | |
1438 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1439 | } |
1440 | ||
a97342f9 DP |
1441 | void netxen_watchdog_task(struct work_struct *work) |
1442 | { | |
1443 | struct netxen_adapter *adapter = | |
1444 | container_of(work, struct netxen_adapter, watchdog_task); | |
1445 | ||
1446 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) | |
1447 | return; | |
1448 | ||
1449 | netxen_nic_handle_phy_intr(adapter); | |
1450 | ||
922c4f2c DP |
1451 | if (netif_running(adapter->netdev)) |
1452 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); | |
a97342f9 DP |
1453 | } |
1454 | ||
3d396eb1 AK |
1455 | static void netxen_tx_timeout(struct net_device *netdev) |
1456 | { | |
3176ff3e MT |
1457 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1458 | netdev_priv(netdev); | |
1459 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1460 | } |
1461 | ||
6d5aefb8 | 1462 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1463 | { |
4790654c | 1464 | struct netxen_adapter *adapter = |
3176ff3e | 1465 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1466 | |
1467 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1468 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1469 | |
ba53e6b4 DP |
1470 | netxen_nic_disable_int(adapter); |
1471 | napi_disable(&adapter->napi); | |
1472 | ||
6c80b18d | 1473 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1474 | |
1475 | napi_enable(&adapter->napi); | |
1476 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1477 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1478 | } |
1479 | ||
a97342f9 DP |
1480 | /* |
1481 | * netxen_nic_get_stats - Get System Network Statistics | |
1482 | * @netdev: network interface device structure | |
1483 | */ | |
1484 | struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) | |
1485 | { | |
1486 | struct netxen_adapter *adapter = netdev_priv(netdev); | |
1487 | struct net_device_stats *stats = &adapter->net_stats; | |
1488 | ||
1489 | memset(stats, 0, sizeof(*stats)); | |
1490 | ||
1491 | /* total packets received */ | |
1492 | stats->rx_packets = adapter->stats.no_rcv; | |
1493 | /* total packets transmitted */ | |
1494 | stats->tx_packets = adapter->stats.xmitedframes + | |
1495 | adapter->stats.xmitfinished; | |
1496 | /* total bytes received */ | |
1497 | stats->rx_bytes = adapter->stats.rxbytes; | |
1498 | /* total bytes transmitted */ | |
1499 | stats->tx_bytes = adapter->stats.txbytes; | |
1500 | /* bad packets received */ | |
1501 | stats->rx_errors = adapter->stats.rcvdbadskb; | |
1502 | /* packet transmit problems */ | |
1503 | stats->tx_errors = adapter->stats.nocmddescriptor; | |
1504 | /* no space in linux buffers */ | |
1505 | stats->rx_dropped = adapter->stats.rxdropped; | |
1506 | /* no space available in linux */ | |
1507 | stats->tx_dropped = adapter->stats.txdropped; | |
1508 | ||
1509 | return stats; | |
1510 | } | |
1511 | ||
e4c93c81 | 1512 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1513 | { |
1daec86a | 1514 | struct netxen_adapter *adapter = data; |
d71e1be8 DP |
1515 | u32 status = 0; |
1516 | ||
1517 | status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1518 | ||
1519 | if (!(status & adapter->legacy_intr.int_vec_bit)) | |
05aaa02d | 1520 | return IRQ_NONE; |
e01872af | 1521 | |
d71e1be8 DP |
1522 | if (adapter->ahw.revision_id >= NX_P3_B1) { |
1523 | /* check interrupt state machine, to be sure */ | |
1524 | status = adapter->pci_read_immediate(adapter, | |
1525 | ISR_INT_STATE_REG); | |
1526 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1527 | return IRQ_NONE; | |
1528 | ||
092bc571 DP |
1529 | } else { |
1530 | unsigned long our_int = 0; | |
d71e1be8 DP |
1531 | |
1532 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); | |
092bc571 | 1533 | |
d71e1be8 | 1534 | /* not our interrupt */ |
092bc571 | 1535 | if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) |
d71e1be8 DP |
1536 | return IRQ_NONE; |
1537 | ||
092bc571 DP |
1538 | /* claim interrupt */ |
1539 | adapter->pci_write_normalize(adapter, | |
1540 | CRB_INT_VECTOR, (our_int & 0xffffffff)); | |
e01872af | 1541 | } |
1542 | ||
092bc571 DP |
1543 | /* clear interrupt */ |
1544 | if (adapter->fw_major < 4) | |
1545 | netxen_nic_disable_int(adapter); | |
1546 | ||
1547 | adapter->pci_write_immediate(adapter, | |
1548 | adapter->legacy_intr.tgt_status_reg, | |
1549 | 0xffffffff); | |
1550 | /* read twice to ensure write is flushed */ | |
1551 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1552 | adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); | |
1553 | ||
1554 | napi_schedule(&adapter->napi); | |
3d396eb1 AK |
1555 | |
1556 | return IRQ_HANDLED; | |
1557 | } | |
1558 | ||
e4c93c81 | 1559 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d DP |
1560 | { |
1561 | struct netxen_adapter *adapter = data; | |
1562 | ||
092bc571 DP |
1563 | /* clear interrupt */ |
1564 | adapter->pci_write_immediate(adapter, | |
1565 | msi_tgt_status[adapter->ahw.pci_func], 0xffffffff); | |
1566 | ||
1567 | napi_schedule(&adapter->napi); | |
05aaa02d DP |
1568 | return IRQ_HANDLED; |
1569 | } | |
1570 | ||
bea3348e | 1571 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1572 | { |
bea3348e | 1573 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1574 | int tx_complete; |
3d396eb1 | 1575 | int ctx; |
bea3348e | 1576 | int work_done; |
3d396eb1 | 1577 | |
05aaa02d | 1578 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1579 | |
80922fbc | 1580 | work_done = 0; |
3d396eb1 AK |
1581 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1582 | /* | |
1583 | * Fairness issue. This will give undue weight to the | |
1584 | * receive context 0. | |
1585 | */ | |
1586 | ||
1587 | /* | |
1588 | * To avoid starvation, we give each of our receivers, | |
1589 | * a fraction of the quota. Sometimes, it might happen that we | |
1590 | * have enough quota to process every packet, but since all the | |
1591 | * packets are on one context, it gets only half of the quota, | |
1592 | * and ends up not processing it. | |
1593 | */ | |
bea3348e SH |
1594 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1595 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1596 | } |
1597 | ||
05aaa02d | 1598 | if ((work_done < budget) && tx_complete) { |
908a7a16 | 1599 | netif_rx_complete(&adapter->napi); |
3d396eb1 AK |
1600 | netxen_nic_enable_int(adapter); |
1601 | } | |
1602 | ||
bea3348e | 1603 | return work_done; |
3d396eb1 AK |
1604 | } |
1605 | ||
1606 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1607 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1608 | { | |
3176ff3e | 1609 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1610 | disable_irq(adapter->irq); |
1494a814 | 1611 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1612 | enable_irq(adapter->irq); |
1613 | } | |
1614 | #endif | |
3d396eb1 AK |
1615 | |
1616 | static struct pci_driver netxen_driver = { | |
1617 | .name = netxen_nic_driver_name, | |
1618 | .id_table = netxen_pci_tbl, | |
1619 | .probe = netxen_nic_probe, | |
1620 | .remove = __devexit_p(netxen_nic_remove) | |
1621 | }; | |
1622 | ||
1623 | /* Driver Registration on NetXen card */ | |
1624 | ||
1625 | static int __init netxen_init_module(void) | |
1626 | { | |
79ea13ce | 1627 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1628 | return -ENOMEM; |
1629 | ||
184231bd | 1630 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1631 | } |
1632 | ||
1633 | module_init(netxen_init_module); | |
1634 | ||
1635 | static void __exit netxen_exit_module(void) | |
1636 | { | |
3d396eb1 | 1637 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1638 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1639 | } |
1640 | ||
1641 | module_exit(netxen_exit_module); |