]>
Commit | Line | Data |
---|---|---|
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 AK |
51 | |
52 | #define NETXEN_NETDEV_WEIGHT 120 | |
53 | #define NETXEN_ADAPTER_UP_MAGIC 777 | |
cb8011ad | 54 | #define NETXEN_NIC_PEG_TUNE 0 |
3d396eb1 AK |
55 | |
56 | /* Local functions to NetXen NIC driver */ | |
57 | static int __devinit netxen_nic_probe(struct pci_dev *pdev, | |
58 | const struct pci_device_id *ent); | |
59 | static void __devexit netxen_nic_remove(struct pci_dev *pdev); | |
60 | static int netxen_nic_open(struct net_device *netdev); | |
61 | static int netxen_nic_close(struct net_device *netdev); | |
62 | static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); | |
63 | static void netxen_tx_timeout(struct net_device *netdev); | |
6d5aefb8 | 64 | static void netxen_tx_timeout_task(struct work_struct *work); |
3d396eb1 | 65 | static void netxen_watchdog(unsigned long); |
bea3348e | 66 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
3d396eb1 AK |
67 | #ifdef CONFIG_NET_POLL_CONTROLLER |
68 | static void netxen_nic_poll_controller(struct net_device *netdev); | |
69 | #endif | |
1494a814 | 70 | static irqreturn_t netxen_intr(int irq, void *data); |
05aaa02d | 71 | static irqreturn_t netxen_msi_intr(int irq, void *data); |
3d396eb1 AK |
72 | |
73 | /* PCI Device ID Table */ | |
70081ac5 AV |
74 | #define ENTRY(device) \ |
75 | {PCI_DEVICE(0x4040, (device)), \ | |
76 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} | |
77 | ||
3d396eb1 | 78 | static struct pci_device_id netxen_pci_tbl[] __devinitdata = { |
70081ac5 AV |
79 | ENTRY(0x0001), |
80 | ENTRY(0x0002), | |
81 | ENTRY(0x0003), | |
82 | ENTRY(0x0004), | |
83 | ENTRY(0x0005), | |
84 | ENTRY(0x0024), | |
85 | ENTRY(0x0025), | |
e4c93c81 | 86 | ENTRY(0x0100), |
3d396eb1 AK |
87 | {0,} |
88 | }; | |
89 | ||
90 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); | |
91 | ||
b1555130 AB |
92 | /* |
93 | * In netxen_nic_down(), we must wait for any pending callback requests into | |
94 | * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be | |
95 | * reenabled right after it is deleted in netxen_nic_down(). | |
96 | * FLUSH_SCHEDULED_WORK() does this synchronization. | |
97 | * | |
98 | * Normally, schedule_work()/flush_scheduled_work() could have worked, but | |
99 | * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() | |
100 | * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a | |
101 | * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause | |
102 | * linkwatch_event() to be executed which also attempts to acquire the rtnl | |
103 | * lock thus causing a deadlock. | |
104 | */ | |
105 | ||
106 | static struct workqueue_struct *netxen_workq; | |
107 | #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) | |
108 | #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) | |
109 | ||
ed25ffa1 AK |
110 | static void netxen_watchdog(unsigned long); |
111 | ||
7830b22c DP |
112 | static uint32_t crb_cmd_producer[4] = { |
113 | CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, | |
114 | CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 | |
115 | }; | |
116 | ||
3ce06a32 DP |
117 | static inline void |
118 | netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, | |
119 | uint32_t crb_producer) | |
3176ff3e | 120 | { |
3ce06a32 DP |
121 | adapter->pci_write_normalize(adapter, |
122 | adapter->crb_addr_cmd_producer, crb_producer); | |
3176ff3e MT |
123 | } |
124 | ||
7830b22c DP |
125 | static uint32_t crb_cmd_consumer[4] = { |
126 | CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, | |
127 | CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 | |
128 | }; | |
129 | ||
3ce06a32 DP |
130 | static inline void |
131 | netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
132 | u32 crb_consumer) | |
3176ff3e | 133 | { |
3ce06a32 DP |
134 | adapter->pci_write_normalize(adapter, |
135 | adapter->crb_addr_cmd_consumer, crb_consumer); | |
3176ff3e MT |
136 | } |
137 | ||
443be796 DP |
138 | static uint32_t msi_tgt_status[4] = { |
139 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, | |
140 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3 | |
141 | }; | |
142 | ||
143 | static uint32_t sw_int_mask[4] = { | |
144 | CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1, | |
145 | CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3 | |
146 | }; | |
147 | ||
4638aef1 SH |
148 | static void netxen_nic_disable_int(struct netxen_adapter *adapter) |
149 | { | |
443be796 | 150 | u32 mask = 0x7ff; |
4638aef1 | 151 | int retries = 32; |
443be796 DP |
152 | int port = adapter->portnum; |
153 | int pci_fn = adapter->ahw.pci_func; | |
4638aef1 | 154 | |
f0c88f9c | 155 | if (adapter->msi_mode != MSI_MODE_MULTIFUNC) |
3ce06a32 | 156 | adapter->pci_write_normalize(adapter, sw_int_mask[port], 0); |
4638aef1 SH |
157 | |
158 | if (adapter->intr_scheme != -1 && | |
159 | adapter->intr_scheme != INTR_SCHEME_PERPORT) | |
3ce06a32 | 160 | adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask); |
4638aef1 | 161 | |
4638aef1 SH |
162 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { |
163 | do { | |
3ce06a32 DP |
164 | adapter->pci_write_immediate(adapter, |
165 | ISR_INT_TARGET_STATUS, 0xffffffff); | |
166 | mask = adapter->pci_read_immediate(adapter, | |
167 | ISR_INT_VECTOR); | |
4638aef1 SH |
168 | if (!(mask & 0x80)) |
169 | break; | |
170 | udelay(10); | |
171 | } while (--retries); | |
172 | ||
173 | if (!retries) { | |
174 | printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", | |
175 | netxen_nic_driver_name); | |
176 | } | |
443be796 DP |
177 | } else { |
178 | if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { | |
3ce06a32 DP |
179 | adapter->pci_write_immediate(adapter, |
180 | msi_tgt_status[pci_fn], 0xffffffff); | |
443be796 | 181 | } |
4638aef1 | 182 | } |
4638aef1 SH |
183 | } |
184 | ||
185 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
186 | { | |
187 | u32 mask; | |
443be796 | 188 | int port = adapter->portnum; |
4638aef1 SH |
189 | |
190 | DPRINTK(1, INFO, "Entered ISR Enable \n"); | |
191 | ||
192 | if (adapter->intr_scheme != -1 && | |
193 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
194 | switch (adapter->ahw.board_type) { | |
195 | case NETXEN_NIC_GBE: | |
196 | mask = 0x77b; | |
197 | break; | |
198 | case NETXEN_NIC_XGBE: | |
199 | mask = 0x77f; | |
200 | break; | |
201 | default: | |
202 | mask = 0x7ff; | |
203 | break; | |
204 | } | |
205 | ||
3ce06a32 | 206 | adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask); |
4638aef1 SH |
207 | } |
208 | ||
3ce06a32 | 209 | adapter->pci_write_normalize(adapter, sw_int_mask[port], 0x1); |
4638aef1 SH |
210 | |
211 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
212 | mask = 0xbff; | |
213 | if (adapter->intr_scheme != -1 && | |
214 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
3ce06a32 DP |
215 | adapter->pci_write_normalize(adapter, |
216 | CRB_INT_VECTOR, 0); | |
4638aef1 | 217 | } |
3ce06a32 DP |
218 | adapter->pci_write_immediate(adapter, |
219 | ISR_INT_TARGET_MASK, mask); | |
4638aef1 SH |
220 | } |
221 | ||
222 | DPRINTK(1, INFO, "Done with enable Int\n"); | |
223 | } | |
224 | ||
3d396eb1 AK |
225 | /* |
226 | * netxen_nic_probe() | |
227 | * | |
228 | * The Linux system will invoke this after identifying the vendor ID and | |
229 | * device Id in the pci_tbl supported by this module. | |
230 | * | |
231 | * A quad port card has one operational PCI config space, (function 0), | |
232 | * which is used to access all four ports. | |
233 | * | |
234 | * This routine will initialize the adapter, and setup the global parameters | |
235 | * along with the port's specific structure. | |
236 | */ | |
237 | static int __devinit | |
238 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
239 | { | |
240 | struct net_device *netdev = NULL; | |
241 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
242 | void __iomem *mem_ptr0 = NULL; |
243 | void __iomem *mem_ptr1 = NULL; | |
244 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
245 | unsigned long first_page_group_end; |
246 | unsigned long first_page_group_start; | |
247 | ||
cb8011ad | 248 | |
a608ab9c | 249 | u8 __iomem *db_ptr = NULL; |
3ce06a32 | 250 | unsigned long mem_base, mem_len, db_base, db_len, pci_len0; |
3176ff3e | 251 | int pci_using_dac, i = 0, err; |
3d396eb1 AK |
252 | int ring; |
253 | struct netxen_recv_context *recv_ctx = NULL; | |
254 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
255 | struct netxen_cmd_buffer *cmd_buf_arr = NULL; | |
f305f789 | 256 | __le64 mac_addr[FLASH_NUM_PORTS + 1]; |
6c80b18d MT |
257 | int valid_mac = 0; |
258 | u32 val; | |
3176ff3e | 259 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 260 | DECLARE_MAC_BUF(mac); |
3d396eb1 | 261 | |
dcd56fdb DP |
262 | if (pci_func_id == 0) |
263 | printk(KERN_INFO "%s \n", netxen_nic_driver_string); | |
6c80b18d | 264 | |
3176ff3e | 265 | if (pdev->class != 0x020000) { |
dcd56fdb | 266 | printk(KERN_DEBUG "NetXen function %d, class %x will not " |
3176ff3e | 267 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
268 | return -ENODEV; |
269 | } | |
3d396eb1 AK |
270 | if ((err = pci_enable_device(pdev))) |
271 | return err; | |
272 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
273 | err = -ENODEV; | |
274 | goto err_out_disable_pdev; | |
275 | } | |
276 | ||
277 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
278 | goto err_out_disable_pdev; | |
279 | ||
280 | pci_set_master(pdev); | |
44c10138 | 281 | if (pdev->revision == NX_P2_C1 && |
ed25ffa1 AK |
282 | (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && |
283 | (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { | |
3d396eb1 | 284 | pci_using_dac = 1; |
ed25ffa1 | 285 | } else { |
3d396eb1 AK |
286 | if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || |
287 | (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) | |
288 | goto err_out_free_res; | |
289 | ||
290 | pci_using_dac = 0; | |
291 | } | |
292 | ||
3176ff3e MT |
293 | |
294 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
295 | if(!netdev) { | |
296 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
297 | "device block.Check system memory resource" | |
298 | " usage.\n", netxen_nic_driver_name); | |
299 | goto err_out_free_res; | |
300 | } | |
301 | ||
3176ff3e MT |
302 | SET_NETDEV_DEV(netdev, &pdev->dev); |
303 | ||
304 | adapter = netdev->priv; | |
3176ff3e | 305 | |
13ba9c77 | 306 | adapter->ahw.pci_func = pci_func_id; |
3ce06a32 DP |
307 | rwlock_init(&adapter->adapter_lock); |
308 | adapter->ahw.qdr_sn_window = -1; | |
309 | adapter->ahw.ddr_mn_window = -1; | |
13ba9c77 | 310 | |
3d396eb1 AK |
311 | /* remap phys address */ |
312 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
313 | mem_len = pci_resource_len(pdev, 0); | |
3ce06a32 DP |
314 | pci_len0 = 0; |
315 | ||
316 | adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; | |
317 | adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; | |
318 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; | |
319 | adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; | |
320 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; | |
321 | adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; | |
322 | adapter->pci_set_window = netxen_nic_pci_set_window_128M; | |
323 | adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; | |
324 | adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; | |
3d396eb1 AK |
325 | |
326 | /* 128 Meg of memory */ | |
6c80b18d MT |
327 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
328 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
329 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
330 | SECOND_PAGE_GROUP_SIZE); | |
331 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
332 | THIRD_PAGE_GROUP_SIZE); | |
333 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
334 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
335 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
336 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
337 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
338 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
339 | first_page_group_start = 0; | |
340 | first_page_group_end = 0; | |
3ce06a32 DP |
341 | } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
342 | adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; | |
343 | adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; | |
344 | adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; | |
345 | adapter->pci_write_immediate = | |
346 | netxen_nic_pci_write_immediate_2M; | |
347 | adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; | |
348 | adapter->pci_write_normalize = | |
349 | netxen_nic_pci_write_normalize_2M; | |
350 | adapter->pci_set_window = netxen_nic_pci_set_window_2M; | |
351 | adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; | |
352 | adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; | |
353 | ||
354 | mem_ptr0 = ioremap(mem_base, mem_len); | |
355 | pci_len0 = mem_len; | |
356 | first_page_group_start = 0; | |
357 | first_page_group_end = 0; | |
358 | ||
359 | adapter->ahw.ddr_mn_window = 0; | |
360 | adapter->ahw.qdr_sn_window = 0; | |
361 | ||
362 | adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + | |
363 | (pci_func_id * 0x20); | |
364 | adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; | |
365 | if (pci_func_id < 4) | |
366 | adapter->ahw.ms_win_crb += (pci_func_id * 0x20); | |
367 | else | |
368 | adapter->ahw.ms_win_crb += | |
369 | 0xA0 + ((pci_func_id - 4) * 0x10); | |
6c80b18d | 370 | } else { |
4790654c | 371 | err = -EIO; |
6c80b18d MT |
372 | goto err_out_free_netdev; |
373 | } | |
cb8011ad | 374 | |
3ce06a32 | 375 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
cb8011ad | 376 | |
ed25ffa1 AK |
377 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
378 | db_len = pci_resource_len(pdev, 4); | |
379 | ||
380 | if (db_len == 0) { | |
381 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
382 | netxen_nic_driver_name); | |
383 | err = -EIO; | |
384 | goto err_out_iounmap; | |
385 | } | |
386 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
387 | db_len); | |
388 | ||
389 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 390 | if (!db_ptr) { |
ed25ffa1 AK |
391 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
392 | netxen_nic_driver_name); | |
393 | err = -EIO; | |
394 | goto err_out_iounmap; | |
3d396eb1 | 395 | } |
ed25ffa1 | 396 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 397 | |
6c80b18d | 398 | adapter->ahw.pci_base0 = mem_ptr0; |
3ce06a32 | 399 | adapter->ahw.pci_len0 = pci_len0; |
6c80b18d MT |
400 | adapter->ahw.first_page_group_start = first_page_group_start; |
401 | adapter->ahw.first_page_group_end = first_page_group_end; | |
402 | adapter->ahw.pci_base1 = mem_ptr1; | |
403 | adapter->ahw.pci_base2 = mem_ptr2; | |
404 | adapter->ahw.db_base = db_ptr; | |
405 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 406 | |
3176ff3e MT |
407 | adapter->netdev = netdev; |
408 | adapter->pdev = pdev; | |
2d1a3bbd | 409 | |
bea3348e SH |
410 | netif_napi_add(netdev, &adapter->napi, |
411 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
412 | ||
2d1a3bbd | 413 | /* this will be read from FW later */ |
414 | adapter->intr_scheme = -1; | |
443be796 | 415 | adapter->msi_mode = -1; |
2d1a3bbd | 416 | |
417 | /* This will be reset for mezz cards */ | |
3176ff3e | 418 | adapter->portnum = pci_func_id; |
2d1a3bbd | 419 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 420 | adapter->rx_csum = 1; |
623621b0 DP |
421 | adapter->max_mc_count = 16; |
422 | adapter->mc_enabled = 0; | |
3176ff3e MT |
423 | |
424 | netdev->open = netxen_nic_open; | |
425 | netdev->stop = netxen_nic_close; | |
426 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 427 | netdev->get_stats = netxen_nic_get_stats; |
3176ff3e MT |
428 | netdev->set_multicast_list = netxen_nic_set_multi; |
429 | netdev->set_mac_address = netxen_nic_set_mac; | |
430 | netdev->change_mtu = netxen_nic_change_mtu; | |
431 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 432 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
433 | |
434 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
435 | ||
436 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
437 | #ifdef CONFIG_NET_POLL_CONTROLLER |
438 | netdev->poll_controller = netxen_nic_poll_controller; | |
439 | #endif | |
440 | /* ScatterGather support */ | |
441 | netdev->features = NETIF_F_SG; | |
442 | netdev->features |= NETIF_F_IP_CSUM; | |
443 | netdev->features |= NETIF_F_TSO; | |
444 | ||
445 | if (pci_using_dac) | |
446 | netdev->features |= NETIF_F_HIGHDMA; | |
447 | ||
644caeef | 448 | if (pci_enable_msi(pdev)) |
3176ff3e | 449 | adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; |
644caeef | 450 | else |
3176ff3e MT |
451 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
452 | ||
6c80b18d MT |
453 | netdev->irq = pdev->irq; |
454 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
455 | ||
456 | /* | |
457 | * Set the CRB window to invalid. If any register in window 0 is | |
458 | * accessed it should set the window to 0 and then reset it to 1. | |
459 | */ | |
460 | adapter->curr_window = 255; | |
461 | ||
dcd56fdb DP |
462 | if (netxen_nic_get_board_info(adapter) != 0) { |
463 | printk("%s: Error getting board config info.\n", | |
464 | netxen_nic_driver_name); | |
465 | err = -EIO; | |
466 | goto err_out_iounmap; | |
467 | } | |
6c80b18d | 468 | |
6c80b18d MT |
469 | /* |
470 | * Adapter in our case is quad port so initialize it before | |
471 | * initializing the ports | |
472 | */ | |
473 | ||
474 | netxen_initialize_adapter_ops(adapter); | |
475 | ||
476 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
477 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) || | |
4790654c JG |
478 | (adapter->ahw.boardcfg.board_type == |
479 | NETXEN_BRDTYPE_P2_SB31_2G)) | |
6c80b18d MT |
480 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; |
481 | else | |
482 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; | |
483 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
484 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
485 | ||
3d396eb1 AK |
486 | cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); |
487 | if (cmd_buf_arr == NULL) { | |
ed25ffa1 AK |
488 | printk(KERN_ERR |
489 | "%s: Could not allocate cmd_buf_arr memory:%d\n", | |
490 | netxen_nic_driver_name, (int)TX_RINGSIZE); | |
3d396eb1 AK |
491 | err = -ENOMEM; |
492 | goto err_out_free_adapter; | |
493 | } | |
494 | memset(cmd_buf_arr, 0, TX_RINGSIZE); | |
6c80b18d | 495 | adapter->cmd_buf_arr = cmd_buf_arr; |
3d396eb1 AK |
496 | |
497 | for (i = 0; i < MAX_RCV_CTX; ++i) { | |
498 | recv_ctx = &adapter->recv_ctx[i]; | |
499 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
500 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
501 | switch (RCV_DESC_TYPE(ring)) { | |
502 | case RCV_DESC_NORMAL: | |
503 | rcv_desc->max_rx_desc_count = | |
504 | adapter->max_rx_desc_count; | |
505 | rcv_desc->flags = RCV_DESC_NORMAL; | |
506 | rcv_desc->dma_size = RX_DMA_MAP_LEN; | |
507 | rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; | |
508 | break; | |
509 | ||
510 | case RCV_DESC_JUMBO: | |
511 | rcv_desc->max_rx_desc_count = | |
512 | adapter->max_jumbo_rx_desc_count; | |
513 | rcv_desc->flags = RCV_DESC_JUMBO; | |
514 | rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; | |
515 | rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; | |
516 | break; | |
517 | ||
ed25ffa1 AK |
518 | case RCV_RING_LRO: |
519 | rcv_desc->max_rx_desc_count = | |
520 | adapter->max_lro_rx_desc_count; | |
521 | rcv_desc->flags = RCV_DESC_LRO; | |
522 | rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; | |
523 | rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; | |
524 | break; | |
525 | ||
3d396eb1 AK |
526 | } |
527 | rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) | |
528 | vmalloc(RCV_BUFFSIZE); | |
529 | ||
530 | if (rcv_desc->rx_buf_arr == NULL) { | |
5bc51424 | 531 | printk(KERN_ERR "%s: Could not allocate " |
ed25ffa1 AK |
532 | "rcv_desc->rx_buf_arr memory:%d\n", |
533 | netxen_nic_driver_name, | |
534 | (int)RCV_BUFFSIZE); | |
3d396eb1 AK |
535 | err = -ENOMEM; |
536 | goto err_out_free_rx_buffer; | |
537 | } | |
538 | memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); | |
539 | } | |
540 | ||
541 | } | |
542 | ||
ed25ffa1 | 543 | netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ |
6c80b18d | 544 | |
13ba9c77 | 545 | /* Mezz cards have PCI function 0,2,3 enabled */ |
dc515f2e DP |
546 | switch (adapter->ahw.boardcfg.board_type) { |
547 | case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: | |
548 | case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: | |
549 | if (pci_func_id >= 2) | |
13ba9c77 | 550 | adapter->portnum = pci_func_id - 2; |
dc515f2e DP |
551 | break; |
552 | default: | |
553 | break; | |
554 | } | |
13ba9c77 | 555 | |
3d396eb1 AK |
556 | init_timer(&adapter->watchdog_timer); |
557 | adapter->ahw.xg_linkup = 0; | |
558 | adapter->watchdog_timer.function = &netxen_watchdog; | |
559 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
6d5aefb8 | 560 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); |
44c10138 | 561 | adapter->ahw.revision_id = pdev->revision; |
3d396eb1 | 562 | |
7830b22c DP |
563 | adapter->crb_addr_cmd_producer = crb_cmd_producer[adapter->portnum]; |
564 | adapter->crb_addr_cmd_consumer = crb_cmd_consumer[adapter->portnum]; | |
3176ff3e MT |
565 | netxen_nic_update_cmd_producer(adapter, 0); |
566 | netxen_nic_update_cmd_consumer(adapter, 0); | |
3d396eb1 AK |
567 | |
568 | if (netxen_is_flash_supported(adapter) == 0 && | |
569 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) | |
570 | valid_mac = 1; | |
571 | else | |
572 | valid_mac = 0; | |
573 | ||
3176ff3e | 574 | if (valid_mac) { |
13ba9c77 | 575 | unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum]; |
3176ff3e MT |
576 | netdev->dev_addr[0] = *(p + 5); |
577 | netdev->dev_addr[1] = *(p + 4); | |
578 | netdev->dev_addr[2] = *(p + 3); | |
579 | netdev->dev_addr[3] = *(p + 2); | |
580 | netdev->dev_addr[4] = *(p + 1); | |
581 | netdev->dev_addr[5] = *(p + 0); | |
582 | ||
583 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
584 | netdev->addr_len); | |
585 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
0795af57 JP |
586 | printk(KERN_ERR "%s: Bad MAC address %s.\n", |
587 | netxen_nic_driver_name, | |
588 | print_mac(mac, netdev->dev_addr)); | |
3176ff3e MT |
589 | } else { |
590 | if (adapter->macaddr_set) | |
591 | adapter->macaddr_set(adapter, | |
592 | netdev->dev_addr); | |
593 | } | |
594 | } | |
595 | ||
6c80b18d | 596 | if (adapter->portnum == 0) { |
13ba9c77 | 597 | err = netxen_initialize_adapter_offload(adapter); |
4790654c | 598 | if (err) |
6c80b18d | 599 | goto err_out_free_rx_buffer; |
3ce06a32 DP |
600 | val = adapter->pci_read_normalize(adapter, |
601 | NETXEN_CAM_RAM(0x1fc)); | |
6c80b18d MT |
602 | if (val == 0x55555555) { |
603 | /* This is the first boot after power up */ | |
644caeef | 604 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); |
96acb6eb DP |
605 | if (!(val & 0x4)) { |
606 | val |= 0x4; | |
607 | netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val); | |
608 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); | |
609 | if (!(val & 0x4)) | |
610 | printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n", | |
611 | netxen_nic_driver_name); | |
612 | } | |
3ce06a32 DP |
613 | val = adapter->pci_read_normalize(adapter, |
614 | NETXEN_ROMUSB_GLB_SW_RESET); | |
6c80b18d MT |
615 | printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val); |
616 | if (val != 0x80000f) { | |
617 | /* clear the register for future unloads/loads */ | |
3ce06a32 DP |
618 | adapter->pci_write_normalize(adapter, |
619 | NETXEN_CAM_RAM(0x1fc), 0); | |
644caeef | 620 | printk(KERN_ERR "ERROR in NetXen HW init sequence.\n"); |
621 | err = -ENODEV; | |
622 | goto err_out_free_dev; | |
6c80b18d | 623 | } |
439b454e | 624 | } else { |
3ce06a32 DP |
625 | adapter->pci_write_normalize(adapter, |
626 | CRB_CMDPEG_STATE, 0); | |
439b454e DP |
627 | netxen_pinit_from_rom(adapter, 0); |
628 | msleep(1); | |
629 | netxen_load_firmware(adapter); | |
630 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
623621b0 DP |
631 | |
632 | /* Initialize multicast addr pool owners */ | |
633 | val = 0x7654; | |
634 | if (adapter->ahw.board_type == NETXEN_NIC_XGBE) | |
635 | val |= 0x0f000000; | |
636 | netxen_crb_writelit_adapter(adapter, | |
637 | NETXEN_MAC_ADDR_CNTL_REG, val); | |
638 | ||
6c80b18d | 639 | } |
96acb6eb DP |
640 | |
641 | /* clear the register for future unloads/loads */ | |
3ce06a32 | 642 | adapter->pci_write_normalize(adapter, NETXEN_CAM_RAM(0x1fc), 0); |
439b454e | 643 | dev_info(&pdev->dev, "cmdpeg state: 0x%0x\n", |
3ce06a32 | 644 | adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE)); |
6c80b18d MT |
645 | |
646 | /* | |
647 | * Tell the hardware our version number. | |
648 | */ | |
4790654c | 649 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
650 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
651 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
3ce06a32 | 652 | adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); |
3d396eb1 | 653 | |
3176ff3e | 654 | /* Unlock the HW, prompting the boot sequence */ |
3ce06a32 DP |
655 | adapter->pci_write_normalize(adapter, |
656 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1); | |
3176ff3e MT |
657 | /* Handshake with the card before we register the devices. */ |
658 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
659 | } | |
3d396eb1 | 660 | |
3d396eb1 | 661 | /* |
6c80b18d | 662 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 663 | */ |
dcd56fdb | 664 | adapter->physical_port = adapter->portnum; |
3ce06a32 | 665 | i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum)); |
6c80b18d | 666 | if (i != 0x55555555) |
3276fbad | 667 | adapter->physical_port = i; |
6c80b18d | 668 | |
3176ff3e MT |
669 | netif_carrier_off(netdev); |
670 | netif_stop_queue(netdev); | |
671 | ||
6c80b18d MT |
672 | if ((err = register_netdev(netdev))) { |
673 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
674 | " aborting\n", netxen_nic_driver_name, | |
675 | adapter->portnum); | |
676 | err = -EIO; | |
677 | goto err_out_free_dev; | |
678 | } | |
679 | ||
dcd56fdb | 680 | netxen_nic_flash_print(adapter); |
6c80b18d | 681 | pci_set_drvdata(pdev, adapter); |
3d396eb1 | 682 | |
3d396eb1 AK |
683 | return 0; |
684 | ||
6c80b18d MT |
685 | err_out_free_dev: |
686 | if (adapter->portnum == 0) | |
687 | netxen_free_adapter_offload(adapter); | |
ed25ffa1 | 688 | |
6c80b18d | 689 | err_out_free_rx_buffer: |
3d396eb1 AK |
690 | for (i = 0; i < MAX_RCV_CTX; ++i) { |
691 | recv_ctx = &adapter->recv_ctx[i]; | |
692 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
693 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
694 | if (rcv_desc->rx_buf_arr != NULL) { | |
695 | vfree(rcv_desc->rx_buf_arr); | |
696 | rcv_desc->rx_buf_arr = NULL; | |
697 | } | |
698 | } | |
699 | } | |
3d396eb1 AK |
700 | vfree(cmd_buf_arr); |
701 | ||
6c80b18d MT |
702 | err_out_free_adapter: |
703 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
704 | pci_disable_msi(pdev); | |
705 | ||
3d396eb1 | 706 | pci_set_drvdata(pdev, NULL); |
3d396eb1 | 707 | |
ed25ffa1 AK |
708 | if (db_ptr) |
709 | iounmap(db_ptr); | |
710 | ||
6c80b18d | 711 | err_out_iounmap: |
ed25ffa1 AK |
712 | if (mem_ptr0) |
713 | iounmap(mem_ptr0); | |
714 | if (mem_ptr1) | |
715 | iounmap(mem_ptr1); | |
716 | if (mem_ptr2) | |
717 | iounmap(mem_ptr2); | |
cb8011ad | 718 | |
6c80b18d MT |
719 | err_out_free_netdev: |
720 | free_netdev(netdev); | |
721 | ||
722 | err_out_free_res: | |
3d396eb1 | 723 | pci_release_regions(pdev); |
6c80b18d MT |
724 | |
725 | err_out_disable_pdev: | |
3d396eb1 AK |
726 | pci_disable_device(pdev); |
727 | return err; | |
728 | } | |
729 | ||
730 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
731 | { | |
732 | struct netxen_adapter *adapter; | |
3176ff3e | 733 | struct net_device *netdev; |
3d396eb1 AK |
734 | struct netxen_rx_buffer *buffer; |
735 | struct netxen_recv_context *recv_ctx; | |
736 | struct netxen_rcv_desc_ctx *rcv_desc; | |
96acb6eb DP |
737 | int i, ctxid, ring; |
738 | static int init_firmware_done = 0; | |
3d396eb1 | 739 | |
6c80b18d | 740 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
741 | if (adapter == NULL) |
742 | return; | |
743 | ||
6c80b18d MT |
744 | netdev = adapter->netdev; |
745 | ||
96acb6eb DP |
746 | unregister_netdev(netdev); |
747 | ||
96acb6eb DP |
748 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
749 | init_firmware_done++; | |
3d396eb1 | 750 | netxen_free_hw_resources(adapter); |
96acb6eb | 751 | } |
3d396eb1 | 752 | |
3d396eb1 AK |
753 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
754 | recv_ctx = &adapter->recv_ctx[ctxid]; | |
755 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
756 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
757 | for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { | |
758 | buffer = &(rcv_desc->rx_buf_arr[i]); | |
759 | if (buffer->state == NETXEN_BUFFER_FREE) | |
760 | continue; | |
761 | pci_unmap_single(pdev, buffer->dma, | |
762 | rcv_desc->dma_size, | |
763 | PCI_DMA_FROMDEVICE); | |
764 | if (buffer->skb != NULL) | |
765 | dev_kfree_skb_any(buffer->skb); | |
766 | } | |
767 | vfree(rcv_desc->rx_buf_arr); | |
768 | } | |
769 | } | |
770 | ||
6c80b18d MT |
771 | vfree(adapter->cmd_buf_arr); |
772 | ||
439b454e DP |
773 | if (adapter->portnum == 0) |
774 | netxen_free_adapter_offload(adapter); | |
96acb6eb | 775 | |
3052246c | 776 | if (adapter->irq) |
777 | free_irq(adapter->irq, adapter); | |
778 | ||
779 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
780 | pci_disable_msi(pdev); | |
781 | ||
6c80b18d MT |
782 | iounmap(adapter->ahw.db_base); |
783 | iounmap(adapter->ahw.pci_base0); | |
784 | iounmap(adapter->ahw.pci_base1); | |
785 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
786 | |
787 | pci_release_regions(pdev); | |
3052246c | 788 | pci_disable_device(pdev); |
595e3fb8 MT |
789 | pci_set_drvdata(pdev, NULL); |
790 | ||
6c80b18d | 791 | free_netdev(netdev); |
3d396eb1 AK |
792 | } |
793 | ||
794 | /* | |
795 | * Called when a network interface is made active | |
796 | * @returns 0 on success, negative value on failure | |
797 | */ | |
798 | static int netxen_nic_open(struct net_device *netdev) | |
799 | { | |
3176ff3e | 800 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
801 | int err = 0; |
802 | int ctx, ring; | |
05aaa02d DP |
803 | irq_handler_t handler; |
804 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 | 805 | |
dcd56fdb DP |
806 | if (adapter->driver_mismatch) |
807 | return -EIO; | |
808 | ||
3d396eb1 AK |
809 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { |
810 | err = netxen_init_firmware(adapter); | |
811 | if (err != 0) { | |
812 | printk(KERN_ERR "Failed to init firmware\n"); | |
813 | return -EIO; | |
814 | } | |
3d396eb1 AK |
815 | |
816 | /* setup all the resources for the Phantom... */ | |
817 | /* this include the descriptors for rcv, tx, and status */ | |
818 | netxen_nic_clear_stats(adapter); | |
819 | err = netxen_nic_hw_resources(adapter); | |
820 | if (err) { | |
821 | printk(KERN_ERR "Error in setting hw resources:%d\n", | |
822 | err); | |
823 | return err; | |
824 | } | |
3d396eb1 | 825 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
cb8011ad | 826 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) |
3d396eb1 | 827 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 828 | } |
7830b22c | 829 | adapter->irq = adapter->pdev->irq; |
05aaa02d DP |
830 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
831 | handler = netxen_msi_intr; | |
832 | else { | |
833 | flags |= IRQF_SHARED; | |
834 | handler = netxen_intr; | |
835 | } | |
836 | err = request_irq(adapter->irq, handler, | |
837 | flags, netdev->name, adapter); | |
3d396eb1 AK |
838 | if (err) { |
839 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
ed25ffa1 | 840 | netxen_free_hw_resources(adapter); |
3d396eb1 AK |
841 | return err; |
842 | } | |
ed25ffa1 AK |
843 | |
844 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
845 | } | |
3d396eb1 AK |
846 | /* Done here again so that even if phantom sw overwrote it, |
847 | * we set it */ | |
595e3fb8 MT |
848 | if (adapter->init_port |
849 | && adapter->init_port(adapter, adapter->portnum) != 0) { | |
850 | printk(KERN_ERR "%s: Failed to initialize port %d\n", | |
851 | netxen_nic_driver_name, adapter->portnum); | |
595e3fb8 MT |
852 | return -EIO; |
853 | } | |
7eec517c | 854 | if (adapter->macaddr_set) |
855 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
595e3fb8 | 856 | |
3176ff3e | 857 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 AK |
858 | |
859 | netxen_nic_set_multi(netdev); | |
ed25ffa1 | 860 | if (adapter->set_mtu) |
3176ff3e | 861 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 862 | |
dcd56fdb | 863 | mod_timer(&adapter->watchdog_timer, jiffies); |
05aaa02d DP |
864 | |
865 | napi_enable(&adapter->napi); | |
866 | netxen_nic_enable_int(adapter); | |
867 | ||
dcd56fdb | 868 | netif_start_queue(netdev); |
3d396eb1 AK |
869 | |
870 | return 0; | |
871 | } | |
872 | ||
873 | /* | |
874 | * netxen_nic_close - Disables a network interface entry point | |
875 | */ | |
876 | static int netxen_nic_close(struct net_device *netdev) | |
877 | { | |
3176ff3e | 878 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
879 | int i, j; |
880 | struct netxen_cmd_buffer *cmd_buff; | |
881 | struct netxen_skb_frag *buffrag; | |
882 | ||
883 | netif_carrier_off(netdev); | |
884 | netif_stop_queue(netdev); | |
bea3348e | 885 | napi_disable(&adapter->napi); |
3d396eb1 | 886 | |
72b0a7a8 | 887 | if (adapter->stop_port) |
888 | adapter->stop_port(adapter); | |
889 | ||
e01872af | 890 | netxen_nic_disable_int(adapter); |
891 | ||
3176ff3e MT |
892 | cmd_buff = adapter->cmd_buf_arr; |
893 | for (i = 0; i < adapter->max_tx_desc_count; i++) { | |
894 | buffrag = cmd_buff->frag_array; | |
895 | if (buffrag->dma) { | |
896 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
897 | buffrag->length, PCI_DMA_TODEVICE); | |
96acb6eb | 898 | buffrag->dma = 0ULL; |
3176ff3e MT |
899 | } |
900 | for (j = 0; j < cmd_buff->frag_count; j++) { | |
901 | buffrag++; | |
3d396eb1 | 902 | if (buffrag->dma) { |
3176ff3e | 903 | pci_unmap_page(adapter->pdev, buffrag->dma, |
4790654c | 904 | buffrag->length, |
3176ff3e | 905 | PCI_DMA_TODEVICE); |
96acb6eb | 906 | buffrag->dma = 0ULL; |
3d396eb1 | 907 | } |
3d396eb1 | 908 | } |
3176ff3e MT |
909 | /* Free the skb we received in netxen_nic_xmit_frame */ |
910 | if (cmd_buff->skb) { | |
911 | dev_kfree_skb_any(cmd_buff->skb); | |
912 | cmd_buff->skb = NULL; | |
913 | } | |
914 | cmd_buff++; | |
3d396eb1 | 915 | } |
96acb6eb DP |
916 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
917 | FLUSH_SCHEDULED_WORK(); | |
918 | del_timer_sync(&adapter->watchdog_timer); | |
919 | } | |
3d396eb1 AK |
920 | |
921 | return 0; | |
922 | } | |
923 | ||
924 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
925 | { | |
3176ff3e | 926 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
927 | struct netxen_hardware_context *hw = &adapter->ahw; |
928 | unsigned int first_seg_len = skb->len - skb->data_len; | |
929 | struct netxen_skb_frag *buffrag; | |
930 | unsigned int i; | |
931 | ||
ba53e6b4 | 932 | u32 producer, consumer; |
3d396eb1 AK |
933 | u32 saved_producer = 0; |
934 | struct cmd_desc_type0 *hwdesc; | |
935 | int k; | |
936 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 | 937 | int frag_count; |
3d396eb1 | 938 | int no_of_desc; |
ba53e6b4 | 939 | u32 num_txd = adapter->max_tx_desc_count; |
3d396eb1 | 940 | |
3d396eb1 AK |
941 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
942 | ||
3d396eb1 AK |
943 | /* There 4 fragments per descriptor */ |
944 | no_of_desc = (frag_count + 3) >> 2; | |
cb8011ad AK |
945 | if (netdev->features & NETIF_F_TSO) { |
946 | if (skb_shinfo(skb)->gso_size > 0) { | |
947 | ||
3d396eb1 | 948 | no_of_desc++; |
ab6a5bb6 | 949 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 950 | sizeof(struct ethhdr)) > |
ed25ffa1 | 951 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
952 | no_of_desc++; |
953 | } | |
3d396eb1 AK |
954 | } |
955 | } | |
53a01e00 | 956 | |
ba53e6b4 DP |
957 | producer = adapter->cmd_producer; |
958 | smp_mb(); | |
959 | consumer = adapter->last_cmd_consumer; | |
960 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
961 | netif_stop_queue(netdev); | |
962 | smp_mb(); | |
963 | return NETDEV_TX_BUSY; | |
53a01e00 | 964 | } |
3d396eb1 | 965 | |
3d396eb1 | 966 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
967 | saved_producer = producer; |
968 | hwdesc = &hw->cmd_desc_head[producer]; | |
969 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
970 | /* Take skb->data itself */ | |
971 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cb8011ad | 972 | if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { |
a608ab9c | 973 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 974 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
975 | } else { |
976 | pbuf->mss = 0; | |
977 | hwdesc->mss = 0; | |
978 | } | |
3d396eb1 AK |
979 | pbuf->total_length = skb->len; |
980 | pbuf->skb = skb; | |
981 | pbuf->cmd = TX_ETHER_PKT; | |
982 | pbuf->frag_count = frag_count; | |
3176ff3e | 983 | pbuf->port = adapter->portnum; |
3d396eb1 | 984 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 985 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
986 | PCI_DMA_TODEVICE); |
987 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
988 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
989 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
990 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 991 | |
3176ff3e | 992 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 993 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
994 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
995 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
996 | ||
997 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
998 | struct skb_frag_struct *frag; | |
999 | int len, temp_len; | |
1000 | unsigned long offset; | |
1001 | dma_addr_t temp_dma; | |
1002 | ||
1003 | /* move to next desc. if there is a need */ | |
1004 | if ((i & 0x3) == 0) { | |
1005 | k = 0; | |
ba53e6b4 | 1006 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1007 | hwdesc = &hw->cmd_desc_head[producer]; |
1008 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1009 | pbuf = &adapter->cmd_buf_arr[producer]; |
1010 | pbuf->skb = NULL; | |
3d396eb1 AK |
1011 | } |
1012 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1013 | len = frag->size; | |
1014 | offset = frag->page_offset; | |
1015 | ||
1016 | temp_len = len; | |
3176ff3e | 1017 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1018 | len, PCI_DMA_TODEVICE); |
1019 | ||
1020 | buffrag++; | |
1021 | buffrag->dma = temp_dma; | |
1022 | buffrag->length = temp_len; | |
1023 | ||
3d396eb1 AK |
1024 | switch (k) { |
1025 | case 0: | |
1026 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1027 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1028 | break; | |
1029 | case 1: | |
1030 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1031 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1032 | break; | |
1033 | case 2: | |
1034 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1035 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1036 | break; | |
1037 | case 3: | |
a608ab9c | 1038 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1039 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1040 | break; | |
1041 | } | |
1042 | frag++; | |
1043 | } | |
ba53e6b4 | 1044 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1045 | |
1046 | /* might change opcode to TX_TCP_LSO */ | |
1047 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1048 | ||
1049 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1050 | * the descriptor ring | |
1051 | */ | |
ed25ffa1 AK |
1052 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1053 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1054 | int hdr_len, first_hdr_len, more_hdr; |
1055 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1056 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1057 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1058 | more_hdr = 1; |
1059 | } else { | |
1060 | first_hdr_len = hdr_len; | |
1061 | more_hdr = 0; | |
1062 | } | |
1063 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1064 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1065 | pbuf = &adapter->cmd_buf_arr[producer]; |
1066 | pbuf->skb = NULL; | |
3d396eb1 AK |
1067 | |
1068 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1069 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1070 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1071 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1072 | |
1073 | if (more_hdr) { | |
1074 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1075 | pbuf = &adapter->cmd_buf_arr[producer]; |
1076 | pbuf->skb = NULL; | |
3d396eb1 AK |
1077 | /* copy the next 64 bytes - should be enough except |
1078 | * for pathological case | |
1079 | */ | |
d626f62b ACM |
1080 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1081 | hwdesc, | |
1082 | (hdr_len - | |
1083 | first_hdr_len)); | |
ba53e6b4 | 1084 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1085 | } |
1086 | } | |
6c80b18d | 1087 | |
ba53e6b4 | 1088 | adapter->cmd_producer = producer; |
5dc16268 | 1089 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1090 | |
ba53e6b4 | 1091 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1092 | |
ba53e6b4 | 1093 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1094 | netdev->trans_start = jiffies; |
1095 | ||
3d396eb1 AK |
1096 | return NETDEV_TX_OK; |
1097 | } | |
1098 | ||
1099 | static void netxen_watchdog(unsigned long v) | |
1100 | { | |
1101 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1102 | |
1103 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1104 | } |
1105 | ||
1106 | static void netxen_tx_timeout(struct net_device *netdev) | |
1107 | { | |
3176ff3e MT |
1108 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1109 | netdev_priv(netdev); | |
1110 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1111 | } |
1112 | ||
6d5aefb8 | 1113 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1114 | { |
4790654c | 1115 | struct netxen_adapter *adapter = |
3176ff3e | 1116 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1117 | |
1118 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1119 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1120 | |
ba53e6b4 DP |
1121 | netxen_nic_disable_int(adapter); |
1122 | napi_disable(&adapter->napi); | |
1123 | ||
6c80b18d | 1124 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1125 | |
1126 | napi_enable(&adapter->napi); | |
1127 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1128 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1129 | } |
1130 | ||
05aaa02d DP |
1131 | static inline void |
1132 | netxen_handle_int(struct netxen_adapter *adapter) | |
3d396eb1 | 1133 | { |
2d1a3bbd | 1134 | netxen_nic_disable_int(adapter); |
05aaa02d | 1135 | napi_schedule(&adapter->napi); |
3d396eb1 AK |
1136 | } |
1137 | ||
e4c93c81 | 1138 | static irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1139 | { |
1daec86a | 1140 | struct netxen_adapter *adapter = data; |
e01872af | 1141 | u32 our_int = 0; |
3d396eb1 | 1142 | |
3ce06a32 | 1143 | our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); |
05aaa02d DP |
1144 | /* not our interrupt */ |
1145 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1146 | return IRQ_NONE; | |
e01872af | 1147 | |
1148 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1149 | /* claim interrupt */ | |
3ce06a32 DP |
1150 | adapter->pci_write_normalize(adapter, CRB_INT_VECTOR, |
1151 | our_int & ~((u32)(0x80 << adapter->portnum))); | |
e01872af | 1152 | } |
1153 | ||
05aaa02d | 1154 | netxen_handle_int(adapter); |
3d396eb1 AK |
1155 | |
1156 | return IRQ_HANDLED; | |
1157 | } | |
1158 | ||
e4c93c81 | 1159 | static irqreturn_t netxen_msi_intr(int irq, void *data) |
05aaa02d DP |
1160 | { |
1161 | struct netxen_adapter *adapter = data; | |
1162 | ||
1163 | netxen_handle_int(adapter); | |
1164 | return IRQ_HANDLED; | |
1165 | } | |
1166 | ||
bea3348e | 1167 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1168 | { |
bea3348e | 1169 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1170 | int tx_complete; |
3d396eb1 | 1171 | int ctx; |
bea3348e | 1172 | int work_done; |
3d396eb1 | 1173 | |
05aaa02d | 1174 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1175 | |
80922fbc | 1176 | work_done = 0; |
3d396eb1 AK |
1177 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1178 | /* | |
1179 | * Fairness issue. This will give undue weight to the | |
1180 | * receive context 0. | |
1181 | */ | |
1182 | ||
1183 | /* | |
1184 | * To avoid starvation, we give each of our receivers, | |
1185 | * a fraction of the quota. Sometimes, it might happen that we | |
1186 | * have enough quota to process every packet, but since all the | |
1187 | * packets are on one context, it gets only half of the quota, | |
1188 | * and ends up not processing it. | |
1189 | */ | |
bea3348e SH |
1190 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1191 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1192 | } |
1193 | ||
05aaa02d DP |
1194 | if ((work_done < budget) && tx_complete) { |
1195 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1196 | netxen_nic_enable_int(adapter); |
1197 | } | |
1198 | ||
bea3348e | 1199 | return work_done; |
3d396eb1 AK |
1200 | } |
1201 | ||
1202 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1203 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1204 | { | |
3176ff3e | 1205 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1206 | disable_irq(adapter->irq); |
1494a814 | 1207 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1208 | enable_irq(adapter->irq); |
1209 | } | |
1210 | #endif | |
3d396eb1 AK |
1211 | |
1212 | static struct pci_driver netxen_driver = { | |
1213 | .name = netxen_nic_driver_name, | |
1214 | .id_table = netxen_pci_tbl, | |
1215 | .probe = netxen_nic_probe, | |
1216 | .remove = __devexit_p(netxen_nic_remove) | |
1217 | }; | |
1218 | ||
1219 | /* Driver Registration on NetXen card */ | |
1220 | ||
1221 | static int __init netxen_init_module(void) | |
1222 | { | |
79ea13ce | 1223 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1224 | return -ENOMEM; |
1225 | ||
184231bd | 1226 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1227 | } |
1228 | ||
1229 | module_init(netxen_init_module); | |
1230 | ||
1231 | static void __exit netxen_exit_module(void) | |
1232 | { | |
3d396eb1 | 1233 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1234 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1235 | } |
1236 | ||
1237 | module_exit(netxen_exit_module); |