Commit | Line | Data |
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3d396eb1 AK |
1 | /* |
2 | * Copyright (C) 2003 - 2006 NetXen, Inc. | |
3 | * All rights reserved. | |
80922fbc | 4 | * |
3d396eb1 AK |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
80922fbc | 9 | * |
3d396eb1 AK |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
80922fbc | 14 | * |
3d396eb1 AK |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
80922fbc | 19 | * |
3d396eb1 AK |
20 | * The full GNU General Public License is included in this distribution |
21 | * in the file called LICENSE. | |
80922fbc | 22 | * |
3d396eb1 AK |
23 | * Contact Information: |
24 | * info@netxen.com | |
25 | * NetXen, | |
26 | * 3965 Freedom Circle, Fourth floor, | |
27 | * Santa Clara, CA 95054 | |
28 | * | |
29 | * | |
30 | * Main source file for NetXen NIC Driver on Linux | |
31 | * | |
32 | */ | |
33 | ||
cb8011ad | 34 | #include <linux/vmalloc.h> |
ed25ffa1 | 35 | #include <linux/highmem.h> |
3d396eb1 AK |
36 | #include "netxen_nic_hw.h" |
37 | ||
38 | #include "netxen_nic.h" | |
3d396eb1 | 39 | #include "netxen_nic_phan_reg.h" |
3d396eb1 | 40 | |
1494a814 | 41 | #include <linux/dma-mapping.h> |
c9bdd4b5 | 42 | #include <net/ip.h> |
1494a814 | 43 | |
3d396eb1 AK |
44 | MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); |
45 | MODULE_LICENSE("GPL"); | |
46 | MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); | |
47 | ||
ceded32f | 48 | char netxen_nic_driver_name[] = "netxen_nic"; |
3d396eb1 | 49 | static char netxen_nic_driver_string[] = "NetXen Network Driver version " |
cb8011ad | 50 | NETXEN_NIC_LINUX_VERSIONID; |
3d396eb1 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 AK |
65 | static void netxen_watchdog(unsigned long); |
66 | static int netxen_handle_int(struct netxen_adapter *, struct net_device *); | |
bea3348e | 67 | static int netxen_nic_poll(struct napi_struct *napi, int budget); |
3d396eb1 AK |
68 | #ifdef CONFIG_NET_POLL_CONTROLLER |
69 | static void netxen_nic_poll_controller(struct net_device *netdev); | |
70 | #endif | |
1494a814 | 71 | static irqreturn_t netxen_intr(int irq, void *data); |
3d396eb1 | 72 | |
6c80b18d MT |
73 | int physical_port[] = {0, 1, 2, 3}; |
74 | ||
3d396eb1 AK |
75 | /* PCI Device ID Table */ |
76 | static struct pci_device_id netxen_pci_tbl[] __devinitdata = { | |
77 | {PCI_DEVICE(0x4040, 0x0001)}, | |
78 | {PCI_DEVICE(0x4040, 0x0002)}, | |
79 | {PCI_DEVICE(0x4040, 0x0003)}, | |
80 | {PCI_DEVICE(0x4040, 0x0004)}, | |
81 | {PCI_DEVICE(0x4040, 0x0005)}, | |
0d390734 AK |
82 | {PCI_DEVICE(0x4040, 0x0024)}, |
83 | {PCI_DEVICE(0x4040, 0x0025)}, | |
3d396eb1 AK |
84 | {0,} |
85 | }; | |
86 | ||
87 | MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); | |
88 | ||
ed25ffa1 AK |
89 | struct workqueue_struct *netxen_workq; |
90 | static void netxen_watchdog(unsigned long); | |
91 | ||
3176ff3e MT |
92 | static inline void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
93 | uint32_t crb_producer) | |
94 | { | |
95 | switch (adapter->portnum) { | |
96 | case 0: | |
97 | writel(crb_producer, NETXEN_CRB_NORMALIZE | |
98 | (adapter, CRB_CMD_PRODUCER_OFFSET)); | |
99 | return; | |
100 | case 1: | |
101 | writel(crb_producer, NETXEN_CRB_NORMALIZE | |
102 | (adapter, CRB_CMD_PRODUCER_OFFSET_1)); | |
103 | return; | |
104 | case 2: | |
105 | writel(crb_producer, NETXEN_CRB_NORMALIZE | |
106 | (adapter, CRB_CMD_PRODUCER_OFFSET_2)); | |
107 | return; | |
108 | case 3: | |
109 | writel(crb_producer, NETXEN_CRB_NORMALIZE | |
110 | (adapter, CRB_CMD_PRODUCER_OFFSET_3)); | |
111 | return; | |
112 | default: | |
113 | printk(KERN_WARNING "We tried to update " | |
114 | "CRB_CMD_PRODUCER_OFFSET for invalid " | |
115 | "PCI function id %d\n", | |
116 | adapter->portnum); | |
117 | return; | |
118 | } | |
119 | } | |
120 | ||
121 | static inline void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, | |
122 | u32 crb_consumer) | |
123 | { | |
124 | switch (adapter->portnum) { | |
125 | case 0: | |
126 | writel(crb_consumer, NETXEN_CRB_NORMALIZE | |
127 | (adapter, CRB_CMD_CONSUMER_OFFSET)); | |
128 | return; | |
129 | case 1: | |
130 | writel(crb_consumer, NETXEN_CRB_NORMALIZE | |
131 | (adapter, CRB_CMD_CONSUMER_OFFSET_1)); | |
132 | return; | |
133 | case 2: | |
134 | writel(crb_consumer, NETXEN_CRB_NORMALIZE | |
135 | (adapter, CRB_CMD_CONSUMER_OFFSET_2)); | |
136 | return; | |
137 | case 3: | |
138 | writel(crb_consumer, NETXEN_CRB_NORMALIZE | |
139 | (adapter, CRB_CMD_CONSUMER_OFFSET_3)); | |
140 | return; | |
141 | default: | |
142 | printk(KERN_WARNING "We tried to update " | |
143 | "CRB_CMD_PRODUCER_OFFSET for invalid " | |
144 | "PCI function id %d\n", | |
145 | adapter->portnum); | |
146 | return; | |
147 | } | |
148 | } | |
149 | ||
150 | #define ADAPTER_LIST_SIZE 12 | |
151 | int netxen_cards_found; | |
152 | ||
4638aef1 SH |
153 | static void netxen_nic_disable_int(struct netxen_adapter *adapter) |
154 | { | |
155 | uint32_t mask = 0x7ff; | |
156 | int retries = 32; | |
157 | ||
158 | DPRINTK(1, INFO, "Entered ISR Disable \n"); | |
159 | ||
160 | switch (adapter->portnum) { | |
161 | case 0: | |
162 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0)); | |
163 | break; | |
164 | case 1: | |
165 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1)); | |
166 | break; | |
167 | case 2: | |
168 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2)); | |
169 | break; | |
170 | case 3: | |
171 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3)); | |
172 | break; | |
173 | } | |
174 | ||
175 | if (adapter->intr_scheme != -1 && | |
176 | adapter->intr_scheme != INTR_SCHEME_PERPORT) | |
177 | writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); | |
178 | ||
179 | /* Window = 0 or 1 */ | |
180 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
181 | do { | |
182 | writel(0xffffffff, | |
183 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS)); | |
184 | mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); | |
185 | if (!(mask & 0x80)) | |
186 | break; | |
187 | udelay(10); | |
188 | } while (--retries); | |
189 | ||
190 | if (!retries) { | |
191 | printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", | |
192 | netxen_nic_driver_name); | |
193 | } | |
194 | } | |
195 | ||
196 | DPRINTK(1, INFO, "Done with Disable Int\n"); | |
197 | } | |
198 | ||
199 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
200 | { | |
201 | u32 mask; | |
202 | ||
203 | DPRINTK(1, INFO, "Entered ISR Enable \n"); | |
204 | ||
205 | if (adapter->intr_scheme != -1 && | |
206 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
207 | switch (adapter->ahw.board_type) { | |
208 | case NETXEN_NIC_GBE: | |
209 | mask = 0x77b; | |
210 | break; | |
211 | case NETXEN_NIC_XGBE: | |
212 | mask = 0x77f; | |
213 | break; | |
214 | default: | |
215 | mask = 0x7ff; | |
216 | break; | |
217 | } | |
218 | ||
219 | writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); | |
220 | } | |
221 | ||
222 | switch (adapter->portnum) { | |
223 | case 0: | |
224 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0)); | |
225 | break; | |
226 | case 1: | |
227 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1)); | |
228 | break; | |
229 | case 2: | |
230 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2)); | |
231 | break; | |
232 | case 3: | |
233 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3)); | |
234 | break; | |
235 | } | |
236 | ||
237 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
238 | mask = 0xbff; | |
239 | if (adapter->intr_scheme != -1 && | |
240 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
241 | writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); | |
242 | } | |
243 | writel(mask, | |
244 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK)); | |
245 | } | |
246 | ||
247 | DPRINTK(1, INFO, "Done with enable Int\n"); | |
248 | } | |
249 | ||
3d396eb1 AK |
250 | /* |
251 | * netxen_nic_probe() | |
252 | * | |
253 | * The Linux system will invoke this after identifying the vendor ID and | |
254 | * device Id in the pci_tbl supported by this module. | |
255 | * | |
256 | * A quad port card has one operational PCI config space, (function 0), | |
257 | * which is used to access all four ports. | |
258 | * | |
259 | * This routine will initialize the adapter, and setup the global parameters | |
260 | * along with the port's specific structure. | |
261 | */ | |
262 | static int __devinit | |
263 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
264 | { | |
265 | struct net_device *netdev = NULL; | |
266 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
267 | void __iomem *mem_ptr0 = NULL; |
268 | void __iomem *mem_ptr1 = NULL; | |
269 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
270 | unsigned long first_page_group_end; |
271 | unsigned long first_page_group_start; | |
272 | ||
cb8011ad | 273 | |
a608ab9c | 274 | u8 __iomem *db_ptr = NULL; |
ed25ffa1 | 275 | unsigned long mem_base, mem_len, db_base, db_len; |
3176ff3e | 276 | int pci_using_dac, i = 0, err; |
3d396eb1 AK |
277 | int ring; |
278 | struct netxen_recv_context *recv_ctx = NULL; | |
279 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
280 | struct netxen_cmd_buffer *cmd_buf_arr = NULL; | |
281 | u64 mac_addr[FLASH_NUM_PORTS + 1]; | |
6c80b18d MT |
282 | int valid_mac = 0; |
283 | u32 val; | |
3176ff3e | 284 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 285 | DECLARE_MAC_BUF(mac); |
3d396eb1 | 286 | |
cb8011ad | 287 | printk(KERN_INFO "%s \n", netxen_nic_driver_string); |
6c80b18d | 288 | |
3176ff3e MT |
289 | if (pdev->class != 0x020000) { |
290 | printk(KERN_ERR"NetXen function %d, class %x will not" | |
291 | "be enabled.\n",pci_func_id, pdev->class); | |
ed25ffa1 AK |
292 | return -ENODEV; |
293 | } | |
3d396eb1 AK |
294 | if ((err = pci_enable_device(pdev))) |
295 | return err; | |
296 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
297 | err = -ENODEV; | |
298 | goto err_out_disable_pdev; | |
299 | } | |
300 | ||
301 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
302 | goto err_out_disable_pdev; | |
303 | ||
304 | pci_set_master(pdev); | |
44c10138 | 305 | if (pdev->revision == NX_P2_C1 && |
ed25ffa1 AK |
306 | (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && |
307 | (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { | |
3d396eb1 | 308 | pci_using_dac = 1; |
ed25ffa1 | 309 | } else { |
3d396eb1 AK |
310 | if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || |
311 | (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) | |
312 | goto err_out_free_res; | |
313 | ||
314 | pci_using_dac = 0; | |
315 | } | |
316 | ||
3176ff3e MT |
317 | |
318 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
319 | if(!netdev) { | |
320 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
321 | "device block.Check system memory resource" | |
322 | " usage.\n", netxen_nic_driver_name); | |
323 | goto err_out_free_res; | |
324 | } | |
325 | ||
3176ff3e MT |
326 | SET_NETDEV_DEV(netdev, &pdev->dev); |
327 | ||
328 | adapter = netdev->priv; | |
3176ff3e MT |
329 | |
330 | adapter->ahw.pdev = pdev; | |
13ba9c77 | 331 | adapter->ahw.pci_func = pci_func_id; |
6c80b18d | 332 | spin_lock_init(&adapter->tx_lock); |
13ba9c77 | 333 | |
3d396eb1 AK |
334 | /* remap phys address */ |
335 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
336 | mem_len = pci_resource_len(pdev, 0); | |
337 | ||
338 | /* 128 Meg of memory */ | |
6c80b18d MT |
339 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
340 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
341 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
342 | SECOND_PAGE_GROUP_SIZE); | |
343 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
344 | THIRD_PAGE_GROUP_SIZE); | |
345 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
346 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
347 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
348 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
349 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
350 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
351 | first_page_group_start = 0; | |
352 | first_page_group_end = 0; | |
353 | } else { | |
354 | err = -EIO; | |
355 | goto err_out_free_netdev; | |
356 | } | |
cb8011ad | 357 | |
6c80b18d MT |
358 | if (((mem_ptr0 == 0UL) && (mem_len == NETXEN_PCI_128MB_SIZE)) || |
359 | (mem_ptr1 == 0UL) || (mem_ptr2 == 0UL)) { | |
ed25ffa1 | 360 | DPRINTK(ERR, |
cb8011ad AK |
361 | "Cannot remap adapter memory aborting.:" |
362 | "0 -> %p, 1 -> %p, 2 -> %p\n", | |
363 | mem_ptr0, mem_ptr1, mem_ptr2); | |
364 | ||
3d396eb1 | 365 | err = -EIO; |
ed25ffa1 AK |
366 | goto err_out_iounmap; |
367 | } | |
368 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ | |
369 | db_len = pci_resource_len(pdev, 4); | |
370 | ||
371 | if (db_len == 0) { | |
372 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
373 | netxen_nic_driver_name); | |
374 | err = -EIO; | |
375 | goto err_out_iounmap; | |
376 | } | |
377 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
378 | db_len); | |
379 | ||
380 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 381 | if (!db_ptr) { |
ed25ffa1 AK |
382 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
383 | netxen_nic_driver_name); | |
384 | err = -EIO; | |
385 | goto err_out_iounmap; | |
3d396eb1 | 386 | } |
ed25ffa1 | 387 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 388 | |
6c80b18d MT |
389 | adapter->ahw.pci_base0 = mem_ptr0; |
390 | adapter->ahw.first_page_group_start = first_page_group_start; | |
391 | adapter->ahw.first_page_group_end = first_page_group_end; | |
392 | adapter->ahw.pci_base1 = mem_ptr1; | |
393 | adapter->ahw.pci_base2 = mem_ptr2; | |
394 | adapter->ahw.db_base = db_ptr; | |
395 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 396 | |
3176ff3e MT |
397 | adapter->netdev = netdev; |
398 | adapter->pdev = pdev; | |
2d1a3bbd | 399 | |
bea3348e SH |
400 | netif_napi_add(netdev, &adapter->napi, |
401 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
402 | ||
2d1a3bbd | 403 | /* this will be read from FW later */ |
404 | adapter->intr_scheme = -1; | |
405 | ||
406 | /* This will be reset for mezz cards */ | |
3176ff3e | 407 | adapter->portnum = pci_func_id; |
2d1a3bbd | 408 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 409 | adapter->rx_csum = 1; |
3176ff3e MT |
410 | |
411 | netdev->open = netxen_nic_open; | |
412 | netdev->stop = netxen_nic_close; | |
413 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
6c80b18d | 414 | netdev->get_stats = netxen_nic_get_stats; |
3176ff3e MT |
415 | netdev->set_multicast_list = netxen_nic_set_multi; |
416 | netdev->set_mac_address = netxen_nic_set_mac; | |
417 | netdev->change_mtu = netxen_nic_change_mtu; | |
418 | netdev->tx_timeout = netxen_tx_timeout; | |
419 | netdev->watchdog_timeo = HZ; | |
420 | ||
421 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
422 | ||
423 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
424 | #ifdef CONFIG_NET_POLL_CONTROLLER |
425 | netdev->poll_controller = netxen_nic_poll_controller; | |
426 | #endif | |
427 | /* ScatterGather support */ | |
428 | netdev->features = NETIF_F_SG; | |
429 | netdev->features |= NETIF_F_IP_CSUM; | |
430 | netdev->features |= NETIF_F_TSO; | |
431 | ||
432 | if (pci_using_dac) | |
433 | netdev->features |= NETIF_F_HIGHDMA; | |
434 | ||
644caeef | 435 | if (pci_enable_msi(pdev)) |
3176ff3e | 436 | adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; |
644caeef | 437 | else |
3176ff3e MT |
438 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
439 | ||
6c80b18d MT |
440 | netdev->irq = pdev->irq; |
441 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
442 | ||
443 | /* | |
444 | * Set the CRB window to invalid. If any register in window 0 is | |
445 | * accessed it should set the window to 0 and then reset it to 1. | |
446 | */ | |
447 | adapter->curr_window = 255; | |
448 | ||
449 | /* initialize the adapter */ | |
450 | netxen_initialize_adapter_hw(adapter); | |
451 | ||
6c80b18d MT |
452 | /* |
453 | * Adapter in our case is quad port so initialize it before | |
454 | * initializing the ports | |
455 | */ | |
456 | ||
457 | netxen_initialize_adapter_ops(adapter); | |
458 | ||
459 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
460 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) || | |
461 | (adapter->ahw.boardcfg.board_type == | |
462 | NETXEN_BRDTYPE_P2_SB31_2G)) | |
463 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; | |
464 | else | |
465 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; | |
466 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
467 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
468 | ||
3d396eb1 AK |
469 | cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); |
470 | if (cmd_buf_arr == NULL) { | |
ed25ffa1 AK |
471 | printk(KERN_ERR |
472 | "%s: Could not allocate cmd_buf_arr memory:%d\n", | |
473 | netxen_nic_driver_name, (int)TX_RINGSIZE); | |
3d396eb1 AK |
474 | err = -ENOMEM; |
475 | goto err_out_free_adapter; | |
476 | } | |
477 | memset(cmd_buf_arr, 0, TX_RINGSIZE); | |
6c80b18d | 478 | adapter->cmd_buf_arr = cmd_buf_arr; |
3d396eb1 AK |
479 | |
480 | for (i = 0; i < MAX_RCV_CTX; ++i) { | |
481 | recv_ctx = &adapter->recv_ctx[i]; | |
482 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
483 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
484 | switch (RCV_DESC_TYPE(ring)) { | |
485 | case RCV_DESC_NORMAL: | |
486 | rcv_desc->max_rx_desc_count = | |
487 | adapter->max_rx_desc_count; | |
488 | rcv_desc->flags = RCV_DESC_NORMAL; | |
489 | rcv_desc->dma_size = RX_DMA_MAP_LEN; | |
490 | rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; | |
491 | break; | |
492 | ||
493 | case RCV_DESC_JUMBO: | |
494 | rcv_desc->max_rx_desc_count = | |
495 | adapter->max_jumbo_rx_desc_count; | |
496 | rcv_desc->flags = RCV_DESC_JUMBO; | |
497 | rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; | |
498 | rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; | |
499 | break; | |
500 | ||
ed25ffa1 AK |
501 | case RCV_RING_LRO: |
502 | rcv_desc->max_rx_desc_count = | |
503 | adapter->max_lro_rx_desc_count; | |
504 | rcv_desc->flags = RCV_DESC_LRO; | |
505 | rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; | |
506 | rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; | |
507 | break; | |
508 | ||
3d396eb1 AK |
509 | } |
510 | rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) | |
511 | vmalloc(RCV_BUFFSIZE); | |
512 | ||
513 | if (rcv_desc->rx_buf_arr == NULL) { | |
ed25ffa1 AK |
514 | printk(KERN_ERR "%s: Could not allocate" |
515 | "rcv_desc->rx_buf_arr memory:%d\n", | |
516 | netxen_nic_driver_name, | |
517 | (int)RCV_BUFFSIZE); | |
3d396eb1 AK |
518 | err = -ENOMEM; |
519 | goto err_out_free_rx_buffer; | |
520 | } | |
521 | memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); | |
522 | } | |
523 | ||
524 | } | |
525 | ||
ed25ffa1 | 526 | netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ |
6c80b18d | 527 | |
13ba9c77 | 528 | /* Mezz cards have PCI function 0,2,3 enabled */ |
6c80b18d MT |
529 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) |
530 | && (pci_func_id >= 2)) | |
13ba9c77 MT |
531 | adapter->portnum = pci_func_id - 2; |
532 | ||
cb8011ad | 533 | #ifdef CONFIG_IA64 |
13ba9c77 | 534 | if(adapter->portnum == 0) { |
3176ff3e MT |
535 | netxen_pinit_from_rom(adapter, 0); |
536 | udelay(500); | |
537 | netxen_load_firmware(adapter); | |
538 | } | |
cb8011ad AK |
539 | #endif |
540 | ||
3d396eb1 AK |
541 | init_timer(&adapter->watchdog_timer); |
542 | adapter->ahw.xg_linkup = 0; | |
543 | adapter->watchdog_timer.function = &netxen_watchdog; | |
544 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
6d5aefb8 | 545 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); |
3d396eb1 AK |
546 | adapter->ahw.pdev = pdev; |
547 | adapter->proc_cmd_buf_counter = 0; | |
44c10138 | 548 | adapter->ahw.revision_id = pdev->revision; |
3d396eb1 | 549 | |
6c80b18d MT |
550 | /* make sure Window == 1 */ |
551 | netxen_nic_pci_change_crbwindow(adapter, 1); | |
552 | ||
3176ff3e MT |
553 | netxen_nic_update_cmd_producer(adapter, 0); |
554 | netxen_nic_update_cmd_consumer(adapter, 0); | |
6c80b18d | 555 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); |
3d396eb1 AK |
556 | |
557 | if (netxen_is_flash_supported(adapter) == 0 && | |
558 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) | |
559 | valid_mac = 1; | |
560 | else | |
561 | valid_mac = 0; | |
562 | ||
3176ff3e | 563 | if (valid_mac) { |
13ba9c77 | 564 | unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum]; |
3176ff3e MT |
565 | netdev->dev_addr[0] = *(p + 5); |
566 | netdev->dev_addr[1] = *(p + 4); | |
567 | netdev->dev_addr[2] = *(p + 3); | |
568 | netdev->dev_addr[3] = *(p + 2); | |
569 | netdev->dev_addr[4] = *(p + 1); | |
570 | netdev->dev_addr[5] = *(p + 0); | |
571 | ||
572 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
573 | netdev->addr_len); | |
574 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
0795af57 JP |
575 | printk(KERN_ERR "%s: Bad MAC address %s.\n", |
576 | netxen_nic_driver_name, | |
577 | print_mac(mac, netdev->dev_addr)); | |
3176ff3e MT |
578 | } else { |
579 | if (adapter->macaddr_set) | |
580 | adapter->macaddr_set(adapter, | |
581 | netdev->dev_addr); | |
582 | } | |
583 | } | |
584 | ||
6c80b18d | 585 | if (adapter->portnum == 0) { |
13ba9c77 | 586 | err = netxen_initialize_adapter_offload(adapter); |
6c80b18d MT |
587 | if (err) |
588 | goto err_out_free_rx_buffer; | |
589 | val = readl(NETXEN_CRB_NORMALIZE(adapter, | |
590 | NETXEN_CAM_RAM(0x1fc))); | |
591 | if (val == 0x55555555) { | |
592 | /* This is the first boot after power up */ | |
644caeef | 593 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); |
96acb6eb DP |
594 | if (!(val & 0x4)) { |
595 | val |= 0x4; | |
596 | netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val); | |
597 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); | |
598 | if (!(val & 0x4)) | |
599 | printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n", | |
600 | netxen_nic_driver_name); | |
601 | } | |
6c80b18d MT |
602 | val = readl(NETXEN_CRB_NORMALIZE(adapter, |
603 | NETXEN_ROMUSB_GLB_SW_RESET)); | |
604 | printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val); | |
605 | if (val != 0x80000f) { | |
606 | /* clear the register for future unloads/loads */ | |
644caeef | 607 | writel(0, NETXEN_CRB_NORMALIZE(adapter, |
608 | NETXEN_CAM_RAM(0x1fc))); | |
609 | printk(KERN_ERR "ERROR in NetXen HW init sequence.\n"); | |
610 | err = -ENODEV; | |
611 | goto err_out_free_dev; | |
6c80b18d | 612 | } |
6c80b18d | 613 | } |
96acb6eb DP |
614 | |
615 | /* clear the register for future unloads/loads */ | |
616 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
6c80b18d MT |
617 | printk(KERN_INFO "State: 0x%0x\n", |
618 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
619 | ||
620 | /* | |
621 | * Tell the hardware our version number. | |
622 | */ | |
623 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) | |
624 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) | |
625 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
626 | writel(i, NETXEN_CRB_NORMALIZE(adapter, CRB_DRIVER_VERSION)); | |
3d396eb1 | 627 | |
3176ff3e MT |
628 | /* Unlock the HW, prompting the boot sequence */ |
629 | writel(1, | |
630 | NETXEN_CRB_NORMALIZE(adapter, | |
631 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); | |
632 | /* Handshake with the card before we register the devices. */ | |
633 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
634 | } | |
3d396eb1 | 635 | |
3d396eb1 | 636 | /* |
6c80b18d | 637 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 638 | */ |
6c80b18d MT |
639 | i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum))); |
640 | if (i != 0x55555555) | |
641 | physical_port[adapter->portnum] = i; | |
642 | ||
3176ff3e MT |
643 | netif_carrier_off(netdev); |
644 | netif_stop_queue(netdev); | |
645 | ||
6c80b18d MT |
646 | if ((err = register_netdev(netdev))) { |
647 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
648 | " aborting\n", netxen_nic_driver_name, | |
649 | adapter->portnum); | |
650 | err = -EIO; | |
651 | goto err_out_free_dev; | |
652 | } | |
653 | ||
654 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 AK |
655 | |
656 | switch (adapter->ahw.board_type) { | |
3176ff3e MT |
657 | case NETXEN_NIC_GBE: |
658 | printk(KERN_INFO "%s: QUAD GbE board initialized\n", | |
659 | netxen_nic_driver_name); | |
660 | break; | |
3d396eb1 | 661 | |
3176ff3e MT |
662 | case NETXEN_NIC_XGBE: |
663 | printk(KERN_INFO "%s: XGbE board initialized\n", | |
664 | netxen_nic_driver_name); | |
665 | break; | |
3d396eb1 AK |
666 | } |
667 | ||
668 | adapter->driver_mismatch = 0; | |
669 | ||
670 | return 0; | |
671 | ||
6c80b18d MT |
672 | err_out_free_dev: |
673 | if (adapter->portnum == 0) | |
674 | netxen_free_adapter_offload(adapter); | |
ed25ffa1 | 675 | |
6c80b18d | 676 | err_out_free_rx_buffer: |
3d396eb1 AK |
677 | for (i = 0; i < MAX_RCV_CTX; ++i) { |
678 | recv_ctx = &adapter->recv_ctx[i]; | |
679 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
680 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
681 | if (rcv_desc->rx_buf_arr != NULL) { | |
682 | vfree(rcv_desc->rx_buf_arr); | |
683 | rcv_desc->rx_buf_arr = NULL; | |
684 | } | |
685 | } | |
686 | } | |
3d396eb1 AK |
687 | vfree(cmd_buf_arr); |
688 | ||
6c80b18d MT |
689 | err_out_free_adapter: |
690 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
691 | pci_disable_msi(pdev); | |
692 | ||
3d396eb1 | 693 | pci_set_drvdata(pdev, NULL); |
3d396eb1 | 694 | |
ed25ffa1 AK |
695 | if (db_ptr) |
696 | iounmap(db_ptr); | |
697 | ||
6c80b18d | 698 | err_out_iounmap: |
ed25ffa1 AK |
699 | if (mem_ptr0) |
700 | iounmap(mem_ptr0); | |
701 | if (mem_ptr1) | |
702 | iounmap(mem_ptr1); | |
703 | if (mem_ptr2) | |
704 | iounmap(mem_ptr2); | |
cb8011ad | 705 | |
6c80b18d MT |
706 | err_out_free_netdev: |
707 | free_netdev(netdev); | |
708 | ||
709 | err_out_free_res: | |
3d396eb1 | 710 | pci_release_regions(pdev); |
6c80b18d MT |
711 | |
712 | err_out_disable_pdev: | |
3d396eb1 AK |
713 | pci_disable_device(pdev); |
714 | return err; | |
715 | } | |
716 | ||
717 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
718 | { | |
719 | struct netxen_adapter *adapter; | |
3176ff3e | 720 | struct net_device *netdev; |
3d396eb1 AK |
721 | struct netxen_rx_buffer *buffer; |
722 | struct netxen_recv_context *recv_ctx; | |
723 | struct netxen_rcv_desc_ctx *rcv_desc; | |
96acb6eb DP |
724 | int i, ctxid, ring; |
725 | static int init_firmware_done = 0; | |
3d396eb1 | 726 | |
6c80b18d | 727 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
728 | if (adapter == NULL) |
729 | return; | |
730 | ||
6c80b18d MT |
731 | netdev = adapter->netdev; |
732 | ||
96acb6eb DP |
733 | unregister_netdev(netdev); |
734 | ||
96acb6eb DP |
735 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
736 | init_firmware_done++; | |
3d396eb1 | 737 | netxen_free_hw_resources(adapter); |
96acb6eb | 738 | } |
3d396eb1 | 739 | |
3d396eb1 AK |
740 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
741 | recv_ctx = &adapter->recv_ctx[ctxid]; | |
742 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
743 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
744 | for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { | |
745 | buffer = &(rcv_desc->rx_buf_arr[i]); | |
746 | if (buffer->state == NETXEN_BUFFER_FREE) | |
747 | continue; | |
748 | pci_unmap_single(pdev, buffer->dma, | |
749 | rcv_desc->dma_size, | |
750 | PCI_DMA_FROMDEVICE); | |
751 | if (buffer->skb != NULL) | |
752 | dev_kfree_skb_any(buffer->skb); | |
753 | } | |
754 | vfree(rcv_desc->rx_buf_arr); | |
755 | } | |
756 | } | |
757 | ||
6c80b18d MT |
758 | vfree(adapter->cmd_buf_arr); |
759 | ||
96acb6eb DP |
760 | if (adapter->portnum == 0) { |
761 | if (init_firmware_done) { | |
96acb6eb | 762 | i = 100; |
ceded32f | 763 | do { |
764 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
765 | break; | |
96acb6eb | 766 | msleep(100); |
ceded32f | 767 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
768 | break; | |
769 | } while (--i); | |
96acb6eb | 770 | |
ceded32f | 771 | if (i == 0) |
772 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", | |
773 | netdev->name); | |
96acb6eb DP |
774 | |
775 | /* clear the register for future unloads/loads */ | |
776 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
777 | printk(KERN_INFO "State: 0x%0x\n", | |
778 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
779 | ||
780 | /* leave the hw in the same state as reboot */ | |
781 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
ceded32f | 782 | netxen_pinit_from_rom(adapter, 0); |
96acb6eb | 783 | msleep(1); |
ceded32f | 784 | netxen_load_firmware(adapter); |
96acb6eb DP |
785 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
786 | } | |
787 | ||
788 | /* clear the register for future unloads/loads */ | |
789 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
790 | printk(KERN_INFO "State: 0x%0x\n", | |
791 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
792 | ||
96acb6eb | 793 | i = 100; |
ceded32f | 794 | do { |
795 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
796 | break; | |
96acb6eb | 797 | msleep(100); |
ceded32f | 798 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
799 | break; | |
800 | } while (--i); | |
96acb6eb DP |
801 | |
802 | if (i) { | |
803 | netxen_free_adapter_offload(adapter); | |
804 | } else { | |
ceded32f | 805 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
806 | netdev->name); | |
96acb6eb | 807 | } |
96acb6eb DP |
808 | } |
809 | ||
3052246c | 810 | if (adapter->irq) |
811 | free_irq(adapter->irq, adapter); | |
812 | ||
813 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
814 | pci_disable_msi(pdev); | |
815 | ||
6c80b18d MT |
816 | iounmap(adapter->ahw.db_base); |
817 | iounmap(adapter->ahw.pci_base0); | |
818 | iounmap(adapter->ahw.pci_base1); | |
819 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
820 | |
821 | pci_release_regions(pdev); | |
3052246c | 822 | pci_disable_device(pdev); |
595e3fb8 MT |
823 | pci_set_drvdata(pdev, NULL); |
824 | ||
6c80b18d | 825 | free_netdev(netdev); |
3d396eb1 AK |
826 | } |
827 | ||
828 | /* | |
829 | * Called when a network interface is made active | |
830 | * @returns 0 on success, negative value on failure | |
831 | */ | |
832 | static int netxen_nic_open(struct net_device *netdev) | |
833 | { | |
3176ff3e | 834 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
835 | int err = 0; |
836 | int ctx, ring; | |
837 | ||
838 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { | |
839 | err = netxen_init_firmware(adapter); | |
840 | if (err != 0) { | |
841 | printk(KERN_ERR "Failed to init firmware\n"); | |
842 | return -EIO; | |
843 | } | |
844 | netxen_nic_flash_print(adapter); | |
845 | ||
846 | /* setup all the resources for the Phantom... */ | |
847 | /* this include the descriptors for rcv, tx, and status */ | |
848 | netxen_nic_clear_stats(adapter); | |
849 | err = netxen_nic_hw_resources(adapter); | |
850 | if (err) { | |
851 | printk(KERN_ERR "Error in setting hw resources:%d\n", | |
852 | err); | |
853 | return err; | |
854 | } | |
3d396eb1 | 855 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
cb8011ad | 856 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) |
3d396eb1 | 857 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 858 | } |
ed25ffa1 | 859 | adapter->irq = adapter->ahw.pdev->irq; |
6c80b18d | 860 | err = request_irq(adapter->ahw.pdev->irq, netxen_intr, |
1c8e039a | 861 | IRQF_SHARED|IRQF_SAMPLE_RANDOM, netdev->name, |
6c80b18d | 862 | adapter); |
3d396eb1 AK |
863 | if (err) { |
864 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
ed25ffa1 | 865 | netxen_free_hw_resources(adapter); |
3d396eb1 AK |
866 | return err; |
867 | } | |
ed25ffa1 AK |
868 | |
869 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
870 | } | |
3176ff3e MT |
871 | if (!adapter->driver_mismatch) |
872 | mod_timer(&adapter->watchdog_timer, jiffies); | |
3d396eb1 | 873 | |
bea3348e SH |
874 | napi_enable(&adapter->napi); |
875 | ||
3176ff3e | 876 | netxen_nic_enable_int(adapter); |
3d396eb1 AK |
877 | |
878 | /* Done here again so that even if phantom sw overwrote it, | |
879 | * we set it */ | |
595e3fb8 MT |
880 | if (adapter->init_port |
881 | && adapter->init_port(adapter, adapter->portnum) != 0) { | |
6c80b18d | 882 | del_timer_sync(&adapter->watchdog_timer); |
595e3fb8 MT |
883 | printk(KERN_ERR "%s: Failed to initialize port %d\n", |
884 | netxen_nic_driver_name, adapter->portnum); | |
bea3348e | 885 | napi_disable(&adapter->napi); |
595e3fb8 MT |
886 | return -EIO; |
887 | } | |
7eec517c | 888 | if (adapter->macaddr_set) |
889 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
595e3fb8 | 890 | |
3176ff3e | 891 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 AK |
892 | |
893 | netxen_nic_set_multi(netdev); | |
ed25ffa1 | 894 | if (adapter->set_mtu) |
3176ff3e | 895 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 896 | |
3d396eb1 AK |
897 | if (!adapter->driver_mismatch) |
898 | netif_start_queue(netdev); | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
903 | /* | |
904 | * netxen_nic_close - Disables a network interface entry point | |
905 | */ | |
906 | static int netxen_nic_close(struct net_device *netdev) | |
907 | { | |
3176ff3e | 908 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
909 | int i, j; |
910 | struct netxen_cmd_buffer *cmd_buff; | |
911 | struct netxen_skb_frag *buffrag; | |
912 | ||
913 | netif_carrier_off(netdev); | |
914 | netif_stop_queue(netdev); | |
bea3348e | 915 | napi_disable(&adapter->napi); |
3d396eb1 | 916 | |
72b0a7a8 | 917 | if (adapter->stop_port) |
918 | adapter->stop_port(adapter); | |
919 | ||
e01872af | 920 | netxen_nic_disable_int(adapter); |
921 | ||
3176ff3e MT |
922 | cmd_buff = adapter->cmd_buf_arr; |
923 | for (i = 0; i < adapter->max_tx_desc_count; i++) { | |
924 | buffrag = cmd_buff->frag_array; | |
925 | if (buffrag->dma) { | |
926 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
927 | buffrag->length, PCI_DMA_TODEVICE); | |
96acb6eb | 928 | buffrag->dma = 0ULL; |
3176ff3e MT |
929 | } |
930 | for (j = 0; j < cmd_buff->frag_count; j++) { | |
931 | buffrag++; | |
3d396eb1 | 932 | if (buffrag->dma) { |
3176ff3e MT |
933 | pci_unmap_page(adapter->pdev, buffrag->dma, |
934 | buffrag->length, | |
935 | PCI_DMA_TODEVICE); | |
96acb6eb | 936 | buffrag->dma = 0ULL; |
3d396eb1 | 937 | } |
3d396eb1 | 938 | } |
3176ff3e MT |
939 | /* Free the skb we received in netxen_nic_xmit_frame */ |
940 | if (cmd_buff->skb) { | |
941 | dev_kfree_skb_any(cmd_buff->skb); | |
942 | cmd_buff->skb = NULL; | |
943 | } | |
944 | cmd_buff++; | |
3d396eb1 | 945 | } |
96acb6eb DP |
946 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
947 | FLUSH_SCHEDULED_WORK(); | |
948 | del_timer_sync(&adapter->watchdog_timer); | |
949 | } | |
3d396eb1 AK |
950 | |
951 | return 0; | |
952 | } | |
953 | ||
954 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
955 | { | |
3176ff3e | 956 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
957 | struct netxen_hardware_context *hw = &adapter->ahw; |
958 | unsigned int first_seg_len = skb->len - skb->data_len; | |
959 | struct netxen_skb_frag *buffrag; | |
960 | unsigned int i; | |
961 | ||
962 | u32 producer = 0; | |
963 | u32 saved_producer = 0; | |
964 | struct cmd_desc_type0 *hwdesc; | |
965 | int k; | |
966 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 AK |
967 | static int dropped_packet = 0; |
968 | int frag_count; | |
969 | u32 local_producer = 0; | |
970 | u32 max_tx_desc_count = 0; | |
971 | u32 last_cmd_consumer = 0; | |
972 | int no_of_desc; | |
973 | ||
3176ff3e | 974 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
975 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
976 | ||
977 | if (unlikely(skb->len <= 0)) { | |
978 | dev_kfree_skb_any(skb); | |
3176ff3e | 979 | adapter->stats.badskblen++; |
3d396eb1 AK |
980 | return NETDEV_TX_OK; |
981 | } | |
982 | ||
983 | if (frag_count > MAX_BUFFERS_PER_CMD) { | |
984 | printk("%s: %s netxen_nic_xmit_frame: frag_count (%d)" | |
985 | "too large, can handle only %d frags\n", | |
986 | netxen_nic_driver_name, netdev->name, | |
987 | frag_count, MAX_BUFFERS_PER_CMD); | |
3176ff3e | 988 | adapter->stats.txdropped++; |
3d396eb1 AK |
989 | if ((++dropped_packet & 0xff) == 0xff) |
990 | printk("%s: %s droppped packets = %d\n", | |
991 | netxen_nic_driver_name, netdev->name, | |
992 | dropped_packet); | |
993 | ||
994 | return NETDEV_TX_OK; | |
995 | } | |
996 | ||
3d396eb1 AK |
997 | /* There 4 fragments per descriptor */ |
998 | no_of_desc = (frag_count + 3) >> 2; | |
cb8011ad AK |
999 | if (netdev->features & NETIF_F_TSO) { |
1000 | if (skb_shinfo(skb)->gso_size > 0) { | |
1001 | ||
3d396eb1 | 1002 | no_of_desc++; |
ab6a5bb6 | 1003 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 1004 | sizeof(struct ethhdr)) > |
ed25ffa1 | 1005 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
1006 | no_of_desc++; |
1007 | } | |
3d396eb1 AK |
1008 | } |
1009 | } | |
53a01e00 | 1010 | |
1011 | spin_lock_bh(&adapter->tx_lock); | |
1012 | if (adapter->total_threads >= MAX_XMIT_PRODUCERS) { | |
1013 | goto out_requeue; | |
1014 | } | |
1015 | local_producer = adapter->cmd_producer; | |
3d396eb1 AK |
1016 | k = adapter->cmd_producer; |
1017 | max_tx_desc_count = adapter->max_tx_desc_count; | |
1018 | last_cmd_consumer = adapter->last_cmd_consumer; | |
1019 | if ((k + no_of_desc) >= | |
1020 | ((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count : | |
1021 | last_cmd_consumer)) { | |
53a01e00 | 1022 | goto out_requeue; |
3d396eb1 AK |
1023 | } |
1024 | k = get_index_range(k, max_tx_desc_count, no_of_desc); | |
1025 | adapter->cmd_producer = k; | |
1026 | adapter->total_threads++; | |
1027 | adapter->num_threads++; | |
1028 | ||
1029 | spin_unlock_bh(&adapter->tx_lock); | |
1030 | /* Copy the descriptors into the hardware */ | |
1031 | producer = local_producer; | |
1032 | saved_producer = producer; | |
1033 | hwdesc = &hw->cmd_desc_head[producer]; | |
1034 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1035 | /* Take skb->data itself */ | |
1036 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cb8011ad | 1037 | if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { |
a608ab9c | 1038 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 1039 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
1040 | } else { |
1041 | pbuf->mss = 0; | |
1042 | hwdesc->mss = 0; | |
1043 | } | |
3d396eb1 AK |
1044 | pbuf->total_length = skb->len; |
1045 | pbuf->skb = skb; | |
1046 | pbuf->cmd = TX_ETHER_PKT; | |
1047 | pbuf->frag_count = frag_count; | |
3176ff3e | 1048 | pbuf->port = adapter->portnum; |
3d396eb1 | 1049 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1050 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1051 | PCI_DMA_TODEVICE); |
1052 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1053 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1054 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1055 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1056 | |
3176ff3e | 1057 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1058 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1059 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1060 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1061 | ||
1062 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1063 | struct skb_frag_struct *frag; | |
1064 | int len, temp_len; | |
1065 | unsigned long offset; | |
1066 | dma_addr_t temp_dma; | |
1067 | ||
1068 | /* move to next desc. if there is a need */ | |
1069 | if ((i & 0x3) == 0) { | |
1070 | k = 0; | |
1071 | producer = get_next_index(producer, | |
1072 | adapter->max_tx_desc_count); | |
1073 | hwdesc = &hw->cmd_desc_head[producer]; | |
1074 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1075 | pbuf = &adapter->cmd_buf_arr[producer]; |
1076 | pbuf->skb = NULL; | |
3d396eb1 AK |
1077 | } |
1078 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1079 | len = frag->size; | |
1080 | offset = frag->page_offset; | |
1081 | ||
1082 | temp_len = len; | |
3176ff3e | 1083 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1084 | len, PCI_DMA_TODEVICE); |
1085 | ||
1086 | buffrag++; | |
1087 | buffrag->dma = temp_dma; | |
1088 | buffrag->length = temp_len; | |
1089 | ||
1090 | DPRINTK(INFO, "for loop. i=%d k=%d\n", i, k); | |
1091 | switch (k) { | |
1092 | case 0: | |
1093 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1094 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1095 | break; | |
1096 | case 1: | |
1097 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1098 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1099 | break; | |
1100 | case 2: | |
1101 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1102 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1103 | break; | |
1104 | case 3: | |
a608ab9c | 1105 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1106 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1107 | break; | |
1108 | } | |
1109 | frag++; | |
1110 | } | |
1111 | producer = get_next_index(producer, adapter->max_tx_desc_count); | |
1112 | ||
1113 | /* might change opcode to TX_TCP_LSO */ | |
1114 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1115 | ||
1116 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1117 | * the descriptor ring | |
1118 | */ | |
ed25ffa1 AK |
1119 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1120 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1121 | int hdr_len, first_hdr_len, more_hdr; |
1122 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1123 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1124 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1125 | more_hdr = 1; |
1126 | } else { | |
1127 | first_hdr_len = hdr_len; | |
1128 | more_hdr = 0; | |
1129 | } | |
1130 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1131 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1132 | pbuf = &adapter->cmd_buf_arr[producer]; |
1133 | pbuf->skb = NULL; | |
3d396eb1 AK |
1134 | |
1135 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1136 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 AK |
1137 | (void *)(skb->data), first_hdr_len); |
1138 | producer = get_next_index(producer, max_tx_desc_count); | |
1139 | ||
1140 | if (more_hdr) { | |
1141 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1142 | pbuf = &adapter->cmd_buf_arr[producer]; |
1143 | pbuf->skb = NULL; | |
3d396eb1 AK |
1144 | /* copy the next 64 bytes - should be enough except |
1145 | * for pathological case | |
1146 | */ | |
d626f62b ACM |
1147 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1148 | hwdesc, | |
1149 | (hdr_len - | |
1150 | first_hdr_len)); | |
3d396eb1 AK |
1151 | producer = get_next_index(producer, max_tx_desc_count); |
1152 | } | |
1153 | } | |
6c80b18d MT |
1154 | |
1155 | i = netxen_get_cmd_desc_totallength(&hw->cmd_desc_head[saved_producer]); | |
1156 | ||
1157 | hw->cmd_desc_head[saved_producer].flags_opcode = | |
1158 | cpu_to_le16(hw->cmd_desc_head[saved_producer].flags_opcode); | |
1159 | hw->cmd_desc_head[saved_producer].num_of_buffers_total_length = | |
1160 | cpu_to_le32(hw->cmd_desc_head[saved_producer]. | |
1161 | num_of_buffers_total_length); | |
1162 | ||
3d396eb1 | 1163 | spin_lock_bh(&adapter->tx_lock); |
6c80b18d MT |
1164 | adapter->stats.txbytes += i; |
1165 | ||
3d396eb1 AK |
1166 | /* Code to update the adapter considering how many producer threads |
1167 | are currently working */ | |
1168 | if ((--adapter->num_threads) == 0) { | |
1169 | /* This is the last thread */ | |
1170 | u32 crb_producer = adapter->cmd_producer; | |
3176ff3e | 1171 | netxen_nic_update_cmd_producer(adapter, crb_producer); |
3d396eb1 AK |
1172 | wmb(); |
1173 | adapter->total_threads = 0; | |
3d396eb1 AK |
1174 | } |
1175 | ||
3176ff3e | 1176 | adapter->stats.xmitfinished++; |
3d396eb1 AK |
1177 | netdev->trans_start = jiffies; |
1178 | ||
53a01e00 | 1179 | spin_unlock_bh(&adapter->tx_lock); |
3d396eb1 | 1180 | return NETDEV_TX_OK; |
53a01e00 | 1181 | |
1182 | out_requeue: | |
1183 | netif_stop_queue(netdev); | |
1184 | adapter->flags |= NETXEN_NETDEV_STATUS; | |
1185 | ||
1186 | spin_unlock_bh(&adapter->tx_lock); | |
1187 | return NETDEV_TX_BUSY; | |
3d396eb1 AK |
1188 | } |
1189 | ||
1190 | static void netxen_watchdog(unsigned long v) | |
1191 | { | |
1192 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1193 | |
1194 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1195 | } |
1196 | ||
1197 | static void netxen_tx_timeout(struct net_device *netdev) | |
1198 | { | |
3176ff3e MT |
1199 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1200 | netdev_priv(netdev); | |
1201 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1202 | } |
1203 | ||
6d5aefb8 | 1204 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1205 | { |
3176ff3e MT |
1206 | struct netxen_adapter *adapter = |
1207 | container_of(work, struct netxen_adapter, tx_timeout_task); | |
3d396eb1 AK |
1208 | |
1209 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1210 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1211 | |
6c80b18d MT |
1212 | netxen_nic_close(adapter->netdev); |
1213 | netxen_nic_open(adapter->netdev); | |
6c80b18d MT |
1214 | adapter->netdev->trans_start = jiffies; |
1215 | netif_wake_queue(adapter->netdev); | |
3d396eb1 AK |
1216 | } |
1217 | ||
1218 | static int | |
1219 | netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) | |
1220 | { | |
1221 | u32 ret = 0; | |
1222 | ||
1223 | DPRINTK(INFO, "Entered handle ISR\n"); | |
595e3fb8 | 1224 | adapter->stats.ints++; |
3d396eb1 | 1225 | |
2d1a3bbd | 1226 | netxen_nic_disable_int(adapter); |
1227 | ||
3d396eb1 | 1228 | if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) { |
bea3348e | 1229 | if (netif_rx_schedule_prep(netdev, &adapter->napi)) { |
3d396eb1 AK |
1230 | /* |
1231 | * Interrupts are already disabled. | |
1232 | */ | |
bea3348e | 1233 | __netif_rx_schedule(netdev, &adapter->napi); |
3d396eb1 AK |
1234 | } else { |
1235 | static unsigned int intcount = 0; | |
1236 | if ((++intcount & 0xfff) == 0xfff) | |
2d1a3bbd | 1237 | DPRINTK(KERN_ERR |
3d396eb1 AK |
1238 | "%s: %s interrupt %d while in poll\n", |
1239 | netxen_nic_driver_name, netdev->name, | |
1240 | intcount); | |
1241 | } | |
1242 | ret = 1; | |
1243 | } | |
1244 | ||
1245 | if (ret == 0) { | |
1246 | netxen_nic_enable_int(adapter); | |
1247 | } | |
1248 | ||
1249 | return ret; | |
1250 | } | |
1251 | ||
1252 | /* | |
1253 | * netxen_intr - Interrupt Handler | |
1254 | * @irq: interrupt number | |
1255 | * data points to adapter stucture (which may be handling more than 1 port | |
1256 | */ | |
1494a814 | 1257 | irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1258 | { |
1daec86a JG |
1259 | struct netxen_adapter *adapter = data; |
1260 | struct net_device *netdev = adapter->netdev; | |
e01872af | 1261 | u32 our_int = 0; |
3d396eb1 | 1262 | |
e01872af | 1263 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { |
1264 | our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); | |
1265 | /* not our interrupt */ | |
1266 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1267 | return IRQ_NONE; | |
1268 | } | |
1269 | ||
1270 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1271 | /* claim interrupt */ | |
1272 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
1273 | writel(our_int & ~((u32)(0x80 << adapter->portnum)), | |
1274 | NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); | |
1275 | } | |
1276 | } | |
1277 | ||
3176ff3e MT |
1278 | if (netif_running(netdev)) |
1279 | netxen_handle_int(adapter, netdev); | |
3d396eb1 AK |
1280 | |
1281 | return IRQ_HANDLED; | |
1282 | } | |
1283 | ||
bea3348e | 1284 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1285 | { |
bea3348e SH |
1286 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
1287 | struct net_device *netdev = adapter->netdev; | |
3d396eb1 AK |
1288 | int done = 1; |
1289 | int ctx; | |
bea3348e | 1290 | int work_done; |
3d396eb1 AK |
1291 | |
1292 | DPRINTK(INFO, "polling for %d descriptors\n", *budget); | |
3d396eb1 | 1293 | |
80922fbc | 1294 | work_done = 0; |
3d396eb1 AK |
1295 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1296 | /* | |
1297 | * Fairness issue. This will give undue weight to the | |
1298 | * receive context 0. | |
1299 | */ | |
1300 | ||
1301 | /* | |
1302 | * To avoid starvation, we give each of our receivers, | |
1303 | * a fraction of the quota. Sometimes, it might happen that we | |
1304 | * have enough quota to process every packet, but since all the | |
1305 | * packets are on one context, it gets only half of the quota, | |
1306 | * and ends up not processing it. | |
1307 | */ | |
bea3348e SH |
1308 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1309 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1310 | } |
1311 | ||
1706287f | 1312 | if (work_done >= budget) |
3d396eb1 AK |
1313 | done = 0; |
1314 | ||
ed25ffa1 AK |
1315 | if (netxen_process_cmd_ring((unsigned long)adapter) == 0) |
1316 | done = 0; | |
3d396eb1 AK |
1317 | |
1318 | DPRINTK(INFO, "new work_done: %d work_to_do: %d\n", | |
80922fbc | 1319 | work_done, work_to_do); |
3d396eb1 | 1320 | if (done) { |
bea3348e | 1321 | netif_rx_complete(netdev, napi); |
3d396eb1 AK |
1322 | netxen_nic_enable_int(adapter); |
1323 | } | |
1324 | ||
bea3348e | 1325 | return work_done; |
3d396eb1 AK |
1326 | } |
1327 | ||
1328 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1329 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1330 | { | |
3176ff3e | 1331 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1332 | disable_irq(adapter->irq); |
1494a814 | 1333 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1334 | enable_irq(adapter->irq); |
1335 | } | |
1336 | #endif | |
3d396eb1 AK |
1337 | |
1338 | static struct pci_driver netxen_driver = { | |
1339 | .name = netxen_nic_driver_name, | |
1340 | .id_table = netxen_pci_tbl, | |
1341 | .probe = netxen_nic_probe, | |
1342 | .remove = __devexit_p(netxen_nic_remove) | |
1343 | }; | |
1344 | ||
1345 | /* Driver Registration on NetXen card */ | |
1346 | ||
1347 | static int __init netxen_init_module(void) | |
1348 | { | |
ed25ffa1 AK |
1349 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == 0) |
1350 | return -ENOMEM; | |
1351 | ||
184231bd | 1352 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1353 | } |
1354 | ||
1355 | module_init(netxen_init_module); | |
1356 | ||
1357 | static void __exit netxen_exit_module(void) | |
1358 | { | |
1359 | /* | |
1360 | * Wait for some time to allow the dma to drain, if any. | |
1361 | */ | |
96acb6eb | 1362 | msleep(100); |
3d396eb1 | 1363 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1364 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1365 | } |
1366 | ||
1367 | module_exit(netxen_exit_module); |