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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 | 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 | 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 | ||
993fb90c AB |
92 | static void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
93 | uint32_t crb_producer) | |
3176ff3e MT |
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 | ||
993fb90c AB |
121 | static void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, |
122 | u32 crb_consumer) | |
3176ff3e MT |
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 | |
3176ff3e | 151 | |
443be796 DP |
152 | static uint32_t msi_tgt_status[4] = { |
153 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, | |
154 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3 | |
155 | }; | |
156 | ||
157 | static uint32_t sw_int_mask[4] = { | |
158 | CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1, | |
159 | CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3 | |
160 | }; | |
161 | ||
4638aef1 SH |
162 | static void netxen_nic_disable_int(struct netxen_adapter *adapter) |
163 | { | |
443be796 | 164 | u32 mask = 0x7ff; |
4638aef1 | 165 | int retries = 32; |
443be796 DP |
166 | int port = adapter->portnum; |
167 | int pci_fn = adapter->ahw.pci_func; | |
4638aef1 | 168 | |
443be796 DP |
169 | if (adapter->msi_mode != MSI_MODE_MULTIFUNC) { |
170 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); | |
4638aef1 SH |
171 | } |
172 | ||
173 | if (adapter->intr_scheme != -1 && | |
174 | adapter->intr_scheme != INTR_SCHEME_PERPORT) | |
175 | writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); | |
176 | ||
4638aef1 SH |
177 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { |
178 | do { | |
179 | writel(0xffffffff, | |
180 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS)); | |
181 | mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); | |
182 | if (!(mask & 0x80)) | |
183 | break; | |
184 | udelay(10); | |
185 | } while (--retries); | |
186 | ||
187 | if (!retries) { | |
188 | printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", | |
189 | netxen_nic_driver_name); | |
190 | } | |
443be796 DP |
191 | } else { |
192 | if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { | |
193 | writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter, | |
194 | msi_tgt_status[pci_fn])); | |
195 | } | |
4638aef1 | 196 | } |
4638aef1 SH |
197 | } |
198 | ||
199 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
200 | { | |
201 | u32 mask; | |
443be796 | 202 | int port = adapter->portnum; |
4638aef1 SH |
203 | |
204 | DPRINTK(1, INFO, "Entered ISR Enable \n"); | |
205 | ||
206 | if (adapter->intr_scheme != -1 && | |
207 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
208 | switch (adapter->ahw.board_type) { | |
209 | case NETXEN_NIC_GBE: | |
210 | mask = 0x77b; | |
211 | break; | |
212 | case NETXEN_NIC_XGBE: | |
213 | mask = 0x77f; | |
214 | break; | |
215 | default: | |
216 | mask = 0x7ff; | |
217 | break; | |
218 | } | |
219 | ||
220 | writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); | |
221 | } | |
222 | ||
443be796 | 223 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); |
4638aef1 SH |
224 | |
225 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
226 | mask = 0xbff; | |
227 | if (adapter->intr_scheme != -1 && | |
228 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
229 | writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); | |
230 | } | |
231 | writel(mask, | |
232 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK)); | |
233 | } | |
234 | ||
235 | DPRINTK(1, INFO, "Done with enable Int\n"); | |
236 | } | |
237 | ||
3d396eb1 AK |
238 | /* |
239 | * netxen_nic_probe() | |
240 | * | |
241 | * The Linux system will invoke this after identifying the vendor ID and | |
242 | * device Id in the pci_tbl supported by this module. | |
243 | * | |
244 | * A quad port card has one operational PCI config space, (function 0), | |
245 | * which is used to access all four ports. | |
246 | * | |
247 | * This routine will initialize the adapter, and setup the global parameters | |
248 | * along with the port's specific structure. | |
249 | */ | |
250 | static int __devinit | |
251 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
252 | { | |
253 | struct net_device *netdev = NULL; | |
254 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
255 | void __iomem *mem_ptr0 = NULL; |
256 | void __iomem *mem_ptr1 = NULL; | |
257 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
258 | unsigned long first_page_group_end; |
259 | unsigned long first_page_group_start; | |
260 | ||
cb8011ad | 261 | |
a608ab9c | 262 | u8 __iomem *db_ptr = NULL; |
ed25ffa1 | 263 | unsigned long mem_base, mem_len, db_base, db_len; |
3176ff3e | 264 | int pci_using_dac, i = 0, err; |
3d396eb1 AK |
265 | int ring; |
266 | struct netxen_recv_context *recv_ctx = NULL; | |
267 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
268 | struct netxen_cmd_buffer *cmd_buf_arr = NULL; | |
f305f789 | 269 | __le64 mac_addr[FLASH_NUM_PORTS + 1]; |
6c80b18d MT |
270 | int valid_mac = 0; |
271 | u32 val; | |
3176ff3e | 272 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 273 | DECLARE_MAC_BUF(mac); |
3d396eb1 | 274 | |
cb8011ad | 275 | printk(KERN_INFO "%s \n", netxen_nic_driver_string); |
6c80b18d | 276 | |
3176ff3e | 277 | if (pdev->class != 0x020000) { |
5bc51424 | 278 | printk(KERN_ERR"NetXen function %d, class %x will not " |
3176ff3e | 279 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
280 | return -ENODEV; |
281 | } | |
3d396eb1 AK |
282 | if ((err = pci_enable_device(pdev))) |
283 | return err; | |
284 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
285 | err = -ENODEV; | |
286 | goto err_out_disable_pdev; | |
287 | } | |
288 | ||
289 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
290 | goto err_out_disable_pdev; | |
291 | ||
292 | pci_set_master(pdev); | |
44c10138 | 293 | if (pdev->revision == NX_P2_C1 && |
ed25ffa1 AK |
294 | (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && |
295 | (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { | |
3d396eb1 | 296 | pci_using_dac = 1; |
ed25ffa1 | 297 | } else { |
3d396eb1 AK |
298 | if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || |
299 | (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) | |
300 | goto err_out_free_res; | |
301 | ||
302 | pci_using_dac = 0; | |
303 | } | |
304 | ||
3176ff3e MT |
305 | |
306 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
307 | if(!netdev) { | |
308 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
309 | "device block.Check system memory resource" | |
310 | " usage.\n", netxen_nic_driver_name); | |
311 | goto err_out_free_res; | |
312 | } | |
313 | ||
3176ff3e MT |
314 | SET_NETDEV_DEV(netdev, &pdev->dev); |
315 | ||
316 | adapter = netdev->priv; | |
3176ff3e MT |
317 | |
318 | adapter->ahw.pdev = pdev; | |
13ba9c77 | 319 | adapter->ahw.pci_func = pci_func_id; |
6c80b18d | 320 | spin_lock_init(&adapter->tx_lock); |
13ba9c77 | 321 | |
3d396eb1 AK |
322 | /* remap phys address */ |
323 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
324 | mem_len = pci_resource_len(pdev, 0); | |
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; | |
341 | } else { | |
4790654c | 342 | err = -EIO; |
6c80b18d MT |
343 | goto err_out_free_netdev; |
344 | } | |
cb8011ad | 345 | |
79ea13ce AV |
346 | if ((!mem_ptr0 && mem_len == NETXEN_PCI_128MB_SIZE) || |
347 | !mem_ptr1 || !mem_ptr2) { | |
ed25ffa1 | 348 | DPRINTK(ERR, |
cb8011ad AK |
349 | "Cannot remap adapter memory aborting.:" |
350 | "0 -> %p, 1 -> %p, 2 -> %p\n", | |
351 | mem_ptr0, mem_ptr1, mem_ptr2); | |
352 | ||
3d396eb1 | 353 | err = -EIO; |
ed25ffa1 AK |
354 | goto err_out_iounmap; |
355 | } | |
356 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ | |
357 | db_len = pci_resource_len(pdev, 4); | |
358 | ||
359 | if (db_len == 0) { | |
360 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
361 | netxen_nic_driver_name); | |
362 | err = -EIO; | |
363 | goto err_out_iounmap; | |
364 | } | |
365 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
366 | db_len); | |
367 | ||
368 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 369 | if (!db_ptr) { |
ed25ffa1 AK |
370 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
371 | netxen_nic_driver_name); | |
372 | err = -EIO; | |
373 | goto err_out_iounmap; | |
3d396eb1 | 374 | } |
ed25ffa1 | 375 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 376 | |
6c80b18d MT |
377 | adapter->ahw.pci_base0 = mem_ptr0; |
378 | adapter->ahw.first_page_group_start = first_page_group_start; | |
379 | adapter->ahw.first_page_group_end = first_page_group_end; | |
380 | adapter->ahw.pci_base1 = mem_ptr1; | |
381 | adapter->ahw.pci_base2 = mem_ptr2; | |
382 | adapter->ahw.db_base = db_ptr; | |
383 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 384 | |
3176ff3e MT |
385 | adapter->netdev = netdev; |
386 | adapter->pdev = pdev; | |
2d1a3bbd | 387 | |
bea3348e SH |
388 | netif_napi_add(netdev, &adapter->napi, |
389 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
390 | ||
2d1a3bbd | 391 | /* this will be read from FW later */ |
392 | adapter->intr_scheme = -1; | |
443be796 | 393 | adapter->msi_mode = -1; |
2d1a3bbd | 394 | |
395 | /* This will be reset for mezz cards */ | |
3176ff3e | 396 | adapter->portnum = pci_func_id; |
2d1a3bbd | 397 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 398 | adapter->rx_csum = 1; |
3176ff3e MT |
399 | |
400 | netdev->open = netxen_nic_open; | |
401 | netdev->stop = netxen_nic_close; | |
402 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 403 | netdev->get_stats = netxen_nic_get_stats; |
3176ff3e MT |
404 | netdev->set_multicast_list = netxen_nic_set_multi; |
405 | netdev->set_mac_address = netxen_nic_set_mac; | |
406 | netdev->change_mtu = netxen_nic_change_mtu; | |
407 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 408 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
409 | |
410 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
411 | ||
412 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
413 | #ifdef CONFIG_NET_POLL_CONTROLLER |
414 | netdev->poll_controller = netxen_nic_poll_controller; | |
415 | #endif | |
416 | /* ScatterGather support */ | |
417 | netdev->features = NETIF_F_SG; | |
418 | netdev->features |= NETIF_F_IP_CSUM; | |
419 | netdev->features |= NETIF_F_TSO; | |
420 | ||
421 | if (pci_using_dac) | |
422 | netdev->features |= NETIF_F_HIGHDMA; | |
423 | ||
644caeef | 424 | if (pci_enable_msi(pdev)) |
3176ff3e | 425 | adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; |
644caeef | 426 | else |
3176ff3e MT |
427 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
428 | ||
6c80b18d MT |
429 | netdev->irq = pdev->irq; |
430 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
431 | ||
432 | /* | |
433 | * Set the CRB window to invalid. If any register in window 0 is | |
434 | * accessed it should set the window to 0 and then reset it to 1. | |
435 | */ | |
436 | adapter->curr_window = 255; | |
437 | ||
438 | /* initialize the adapter */ | |
439 | netxen_initialize_adapter_hw(adapter); | |
440 | ||
6c80b18d MT |
441 | /* |
442 | * Adapter in our case is quad port so initialize it before | |
443 | * initializing the ports | |
444 | */ | |
445 | ||
446 | netxen_initialize_adapter_ops(adapter); | |
447 | ||
448 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
449 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) || | |
4790654c JG |
450 | (adapter->ahw.boardcfg.board_type == |
451 | NETXEN_BRDTYPE_P2_SB31_2G)) | |
6c80b18d MT |
452 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; |
453 | else | |
454 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; | |
455 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
456 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
457 | ||
3d396eb1 AK |
458 | cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); |
459 | if (cmd_buf_arr == NULL) { | |
ed25ffa1 AK |
460 | printk(KERN_ERR |
461 | "%s: Could not allocate cmd_buf_arr memory:%d\n", | |
462 | netxen_nic_driver_name, (int)TX_RINGSIZE); | |
3d396eb1 AK |
463 | err = -ENOMEM; |
464 | goto err_out_free_adapter; | |
465 | } | |
466 | memset(cmd_buf_arr, 0, TX_RINGSIZE); | |
6c80b18d | 467 | adapter->cmd_buf_arr = cmd_buf_arr; |
3d396eb1 AK |
468 | |
469 | for (i = 0; i < MAX_RCV_CTX; ++i) { | |
470 | recv_ctx = &adapter->recv_ctx[i]; | |
471 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
472 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
473 | switch (RCV_DESC_TYPE(ring)) { | |
474 | case RCV_DESC_NORMAL: | |
475 | rcv_desc->max_rx_desc_count = | |
476 | adapter->max_rx_desc_count; | |
477 | rcv_desc->flags = RCV_DESC_NORMAL; | |
478 | rcv_desc->dma_size = RX_DMA_MAP_LEN; | |
479 | rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; | |
480 | break; | |
481 | ||
482 | case RCV_DESC_JUMBO: | |
483 | rcv_desc->max_rx_desc_count = | |
484 | adapter->max_jumbo_rx_desc_count; | |
485 | rcv_desc->flags = RCV_DESC_JUMBO; | |
486 | rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; | |
487 | rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; | |
488 | break; | |
489 | ||
ed25ffa1 AK |
490 | case RCV_RING_LRO: |
491 | rcv_desc->max_rx_desc_count = | |
492 | adapter->max_lro_rx_desc_count; | |
493 | rcv_desc->flags = RCV_DESC_LRO; | |
494 | rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; | |
495 | rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; | |
496 | break; | |
497 | ||
3d396eb1 AK |
498 | } |
499 | rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) | |
500 | vmalloc(RCV_BUFFSIZE); | |
501 | ||
502 | if (rcv_desc->rx_buf_arr == NULL) { | |
5bc51424 | 503 | printk(KERN_ERR "%s: Could not allocate " |
ed25ffa1 AK |
504 | "rcv_desc->rx_buf_arr memory:%d\n", |
505 | netxen_nic_driver_name, | |
506 | (int)RCV_BUFFSIZE); | |
3d396eb1 AK |
507 | err = -ENOMEM; |
508 | goto err_out_free_rx_buffer; | |
509 | } | |
510 | memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); | |
511 | } | |
512 | ||
513 | } | |
514 | ||
ed25ffa1 | 515 | netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ |
6c80b18d | 516 | |
13ba9c77 | 517 | /* Mezz cards have PCI function 0,2,3 enabled */ |
6c80b18d MT |
518 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) |
519 | && (pci_func_id >= 2)) | |
13ba9c77 MT |
520 | adapter->portnum = pci_func_id - 2; |
521 | ||
cb8011ad | 522 | #ifdef CONFIG_IA64 |
13ba9c77 | 523 | if(adapter->portnum == 0) { |
3176ff3e MT |
524 | netxen_pinit_from_rom(adapter, 0); |
525 | udelay(500); | |
526 | netxen_load_firmware(adapter); | |
527 | } | |
cb8011ad AK |
528 | #endif |
529 | ||
3d396eb1 AK |
530 | init_timer(&adapter->watchdog_timer); |
531 | adapter->ahw.xg_linkup = 0; | |
532 | adapter->watchdog_timer.function = &netxen_watchdog; | |
533 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
6d5aefb8 | 534 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); |
3d396eb1 AK |
535 | adapter->ahw.pdev = pdev; |
536 | adapter->proc_cmd_buf_counter = 0; | |
44c10138 | 537 | adapter->ahw.revision_id = pdev->revision; |
3d396eb1 | 538 | |
6c80b18d MT |
539 | /* make sure Window == 1 */ |
540 | netxen_nic_pci_change_crbwindow(adapter, 1); | |
541 | ||
3176ff3e MT |
542 | netxen_nic_update_cmd_producer(adapter, 0); |
543 | netxen_nic_update_cmd_consumer(adapter, 0); | |
6c80b18d | 544 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); |
3d396eb1 AK |
545 | |
546 | if (netxen_is_flash_supported(adapter) == 0 && | |
547 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) | |
548 | valid_mac = 1; | |
549 | else | |
550 | valid_mac = 0; | |
551 | ||
3176ff3e | 552 | if (valid_mac) { |
13ba9c77 | 553 | unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum]; |
3176ff3e MT |
554 | netdev->dev_addr[0] = *(p + 5); |
555 | netdev->dev_addr[1] = *(p + 4); | |
556 | netdev->dev_addr[2] = *(p + 3); | |
557 | netdev->dev_addr[3] = *(p + 2); | |
558 | netdev->dev_addr[4] = *(p + 1); | |
559 | netdev->dev_addr[5] = *(p + 0); | |
560 | ||
561 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
562 | netdev->addr_len); | |
563 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
0795af57 JP |
564 | printk(KERN_ERR "%s: Bad MAC address %s.\n", |
565 | netxen_nic_driver_name, | |
566 | print_mac(mac, netdev->dev_addr)); | |
3176ff3e MT |
567 | } else { |
568 | if (adapter->macaddr_set) | |
569 | adapter->macaddr_set(adapter, | |
570 | netdev->dev_addr); | |
571 | } | |
572 | } | |
573 | ||
6c80b18d | 574 | if (adapter->portnum == 0) { |
13ba9c77 | 575 | err = netxen_initialize_adapter_offload(adapter); |
4790654c | 576 | if (err) |
6c80b18d | 577 | goto err_out_free_rx_buffer; |
4790654c | 578 | val = readl(NETXEN_CRB_NORMALIZE(adapter, |
6c80b18d MT |
579 | NETXEN_CAM_RAM(0x1fc))); |
580 | if (val == 0x55555555) { | |
581 | /* This is the first boot after power up */ | |
644caeef | 582 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); |
96acb6eb DP |
583 | if (!(val & 0x4)) { |
584 | val |= 0x4; | |
585 | netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val); | |
586 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); | |
587 | if (!(val & 0x4)) | |
588 | printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n", | |
589 | netxen_nic_driver_name); | |
590 | } | |
6c80b18d MT |
591 | val = readl(NETXEN_CRB_NORMALIZE(adapter, |
592 | NETXEN_ROMUSB_GLB_SW_RESET)); | |
593 | printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val); | |
594 | if (val != 0x80000f) { | |
595 | /* clear the register for future unloads/loads */ | |
644caeef | 596 | writel(0, NETXEN_CRB_NORMALIZE(adapter, |
597 | NETXEN_CAM_RAM(0x1fc))); | |
598 | printk(KERN_ERR "ERROR in NetXen HW init sequence.\n"); | |
599 | err = -ENODEV; | |
600 | goto err_out_free_dev; | |
6c80b18d | 601 | } |
6c80b18d | 602 | } |
96acb6eb DP |
603 | |
604 | /* clear the register for future unloads/loads */ | |
605 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
6c80b18d MT |
606 | printk(KERN_INFO "State: 0x%0x\n", |
607 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
608 | ||
609 | /* | |
610 | * Tell the hardware our version number. | |
611 | */ | |
4790654c | 612 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
613 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
614 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
615 | writel(i, NETXEN_CRB_NORMALIZE(adapter, CRB_DRIVER_VERSION)); | |
3d396eb1 | 616 | |
3176ff3e MT |
617 | /* Unlock the HW, prompting the boot sequence */ |
618 | writel(1, | |
619 | NETXEN_CRB_NORMALIZE(adapter, | |
620 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); | |
621 | /* Handshake with the card before we register the devices. */ | |
622 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
623 | } | |
3d396eb1 | 624 | |
3d396eb1 | 625 | /* |
6c80b18d | 626 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 627 | */ |
6c80b18d MT |
628 | i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum))); |
629 | if (i != 0x55555555) | |
630 | physical_port[adapter->portnum] = i; | |
631 | ||
3176ff3e MT |
632 | netif_carrier_off(netdev); |
633 | netif_stop_queue(netdev); | |
634 | ||
6c80b18d MT |
635 | if ((err = register_netdev(netdev))) { |
636 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
637 | " aborting\n", netxen_nic_driver_name, | |
638 | adapter->portnum); | |
639 | err = -EIO; | |
640 | goto err_out_free_dev; | |
641 | } | |
642 | ||
643 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 AK |
644 | |
645 | switch (adapter->ahw.board_type) { | |
3176ff3e MT |
646 | case NETXEN_NIC_GBE: |
647 | printk(KERN_INFO "%s: QUAD GbE board initialized\n", | |
648 | netxen_nic_driver_name); | |
649 | break; | |
3d396eb1 | 650 | |
3176ff3e | 651 | case NETXEN_NIC_XGBE: |
4790654c | 652 | printk(KERN_INFO "%s: XGbE board initialized\n", |
3176ff3e MT |
653 | netxen_nic_driver_name); |
654 | break; | |
3d396eb1 AK |
655 | } |
656 | ||
657 | adapter->driver_mismatch = 0; | |
658 | ||
659 | return 0; | |
660 | ||
6c80b18d MT |
661 | err_out_free_dev: |
662 | if (adapter->portnum == 0) | |
663 | netxen_free_adapter_offload(adapter); | |
ed25ffa1 | 664 | |
6c80b18d | 665 | err_out_free_rx_buffer: |
3d396eb1 AK |
666 | for (i = 0; i < MAX_RCV_CTX; ++i) { |
667 | recv_ctx = &adapter->recv_ctx[i]; | |
668 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
669 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
670 | if (rcv_desc->rx_buf_arr != NULL) { | |
671 | vfree(rcv_desc->rx_buf_arr); | |
672 | rcv_desc->rx_buf_arr = NULL; | |
673 | } | |
674 | } | |
675 | } | |
3d396eb1 AK |
676 | vfree(cmd_buf_arr); |
677 | ||
6c80b18d MT |
678 | err_out_free_adapter: |
679 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
680 | pci_disable_msi(pdev); | |
681 | ||
3d396eb1 | 682 | pci_set_drvdata(pdev, NULL); |
3d396eb1 | 683 | |
ed25ffa1 AK |
684 | if (db_ptr) |
685 | iounmap(db_ptr); | |
686 | ||
6c80b18d | 687 | err_out_iounmap: |
ed25ffa1 AK |
688 | if (mem_ptr0) |
689 | iounmap(mem_ptr0); | |
690 | if (mem_ptr1) | |
691 | iounmap(mem_ptr1); | |
692 | if (mem_ptr2) | |
693 | iounmap(mem_ptr2); | |
cb8011ad | 694 | |
6c80b18d MT |
695 | err_out_free_netdev: |
696 | free_netdev(netdev); | |
697 | ||
698 | err_out_free_res: | |
3d396eb1 | 699 | pci_release_regions(pdev); |
6c80b18d MT |
700 | |
701 | err_out_disable_pdev: | |
3d396eb1 AK |
702 | pci_disable_device(pdev); |
703 | return err; | |
704 | } | |
705 | ||
706 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
707 | { | |
708 | struct netxen_adapter *adapter; | |
3176ff3e | 709 | struct net_device *netdev; |
3d396eb1 AK |
710 | struct netxen_rx_buffer *buffer; |
711 | struct netxen_recv_context *recv_ctx; | |
712 | struct netxen_rcv_desc_ctx *rcv_desc; | |
96acb6eb DP |
713 | int i, ctxid, ring; |
714 | static int init_firmware_done = 0; | |
3d396eb1 | 715 | |
6c80b18d | 716 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
717 | if (adapter == NULL) |
718 | return; | |
719 | ||
6c80b18d MT |
720 | netdev = adapter->netdev; |
721 | ||
96acb6eb DP |
722 | unregister_netdev(netdev); |
723 | ||
96acb6eb DP |
724 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
725 | init_firmware_done++; | |
3d396eb1 | 726 | netxen_free_hw_resources(adapter); |
96acb6eb | 727 | } |
3d396eb1 | 728 | |
3d396eb1 AK |
729 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
730 | recv_ctx = &adapter->recv_ctx[ctxid]; | |
731 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
732 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
733 | for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { | |
734 | buffer = &(rcv_desc->rx_buf_arr[i]); | |
735 | if (buffer->state == NETXEN_BUFFER_FREE) | |
736 | continue; | |
737 | pci_unmap_single(pdev, buffer->dma, | |
738 | rcv_desc->dma_size, | |
739 | PCI_DMA_FROMDEVICE); | |
740 | if (buffer->skb != NULL) | |
741 | dev_kfree_skb_any(buffer->skb); | |
742 | } | |
743 | vfree(rcv_desc->rx_buf_arr); | |
744 | } | |
745 | } | |
746 | ||
6c80b18d MT |
747 | vfree(adapter->cmd_buf_arr); |
748 | ||
96acb6eb DP |
749 | if (adapter->portnum == 0) { |
750 | if (init_firmware_done) { | |
96acb6eb | 751 | i = 100; |
ceded32f | 752 | do { |
753 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
754 | break; | |
96acb6eb | 755 | msleep(100); |
ceded32f | 756 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
757 | break; | |
758 | } while (--i); | |
96acb6eb | 759 | |
ceded32f | 760 | if (i == 0) |
761 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", | |
762 | netdev->name); | |
96acb6eb DP |
763 | |
764 | /* clear the register for future unloads/loads */ | |
765 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
766 | printk(KERN_INFO "State: 0x%0x\n", | |
767 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
768 | ||
769 | /* leave the hw in the same state as reboot */ | |
770 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
ceded32f | 771 | netxen_pinit_from_rom(adapter, 0); |
96acb6eb | 772 | msleep(1); |
ceded32f | 773 | netxen_load_firmware(adapter); |
96acb6eb DP |
774 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
775 | } | |
776 | ||
777 | /* clear the register for future unloads/loads */ | |
778 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
779 | printk(KERN_INFO "State: 0x%0x\n", | |
780 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
781 | ||
96acb6eb | 782 | i = 100; |
ceded32f | 783 | do { |
784 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
785 | break; | |
96acb6eb | 786 | msleep(100); |
ceded32f | 787 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
788 | break; | |
789 | } while (--i); | |
96acb6eb DP |
790 | |
791 | if (i) { | |
792 | netxen_free_adapter_offload(adapter); | |
793 | } else { | |
ceded32f | 794 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
795 | netdev->name); | |
96acb6eb | 796 | } |
96acb6eb DP |
797 | } |
798 | ||
3052246c | 799 | if (adapter->irq) |
800 | free_irq(adapter->irq, adapter); | |
801 | ||
802 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
803 | pci_disable_msi(pdev); | |
804 | ||
6c80b18d MT |
805 | iounmap(adapter->ahw.db_base); |
806 | iounmap(adapter->ahw.pci_base0); | |
807 | iounmap(adapter->ahw.pci_base1); | |
808 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
809 | |
810 | pci_release_regions(pdev); | |
3052246c | 811 | pci_disable_device(pdev); |
595e3fb8 MT |
812 | pci_set_drvdata(pdev, NULL); |
813 | ||
6c80b18d | 814 | free_netdev(netdev); |
3d396eb1 AK |
815 | } |
816 | ||
817 | /* | |
818 | * Called when a network interface is made active | |
819 | * @returns 0 on success, negative value on failure | |
820 | */ | |
821 | static int netxen_nic_open(struct net_device *netdev) | |
822 | { | |
3176ff3e | 823 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
824 | int err = 0; |
825 | int ctx, ring; | |
05aaa02d DP |
826 | irq_handler_t handler; |
827 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 AK |
828 | |
829 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { | |
830 | err = netxen_init_firmware(adapter); | |
831 | if (err != 0) { | |
832 | printk(KERN_ERR "Failed to init firmware\n"); | |
833 | return -EIO; | |
834 | } | |
835 | netxen_nic_flash_print(adapter); | |
836 | ||
837 | /* setup all the resources for the Phantom... */ | |
838 | /* this include the descriptors for rcv, tx, and status */ | |
839 | netxen_nic_clear_stats(adapter); | |
840 | err = netxen_nic_hw_resources(adapter); | |
841 | if (err) { | |
842 | printk(KERN_ERR "Error in setting hw resources:%d\n", | |
843 | err); | |
844 | return err; | |
845 | } | |
3d396eb1 | 846 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
cb8011ad | 847 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) |
3d396eb1 | 848 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 849 | } |
ed25ffa1 | 850 | adapter->irq = adapter->ahw.pdev->irq; |
05aaa02d DP |
851 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
852 | handler = netxen_msi_intr; | |
853 | else { | |
854 | flags |= IRQF_SHARED; | |
855 | handler = netxen_intr; | |
856 | } | |
857 | err = request_irq(adapter->irq, handler, | |
858 | flags, netdev->name, adapter); | |
3d396eb1 AK |
859 | if (err) { |
860 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
ed25ffa1 | 861 | netxen_free_hw_resources(adapter); |
3d396eb1 AK |
862 | return err; |
863 | } | |
ed25ffa1 AK |
864 | |
865 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
866 | } | |
3d396eb1 AK |
867 | /* Done here again so that even if phantom sw overwrote it, |
868 | * we set it */ | |
595e3fb8 MT |
869 | if (adapter->init_port |
870 | && adapter->init_port(adapter, adapter->portnum) != 0) { | |
871 | printk(KERN_ERR "%s: Failed to initialize port %d\n", | |
872 | netxen_nic_driver_name, adapter->portnum); | |
595e3fb8 MT |
873 | return -EIO; |
874 | } | |
7eec517c | 875 | if (adapter->macaddr_set) |
876 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
595e3fb8 | 877 | |
3176ff3e | 878 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 AK |
879 | |
880 | netxen_nic_set_multi(netdev); | |
ed25ffa1 | 881 | if (adapter->set_mtu) |
3176ff3e | 882 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 883 | |
05aaa02d DP |
884 | if (!adapter->driver_mismatch) |
885 | mod_timer(&adapter->watchdog_timer, jiffies); | |
886 | ||
887 | napi_enable(&adapter->napi); | |
888 | netxen_nic_enable_int(adapter); | |
889 | ||
3d396eb1 AK |
890 | if (!adapter->driver_mismatch) |
891 | netif_start_queue(netdev); | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
896 | /* | |
897 | * netxen_nic_close - Disables a network interface entry point | |
898 | */ | |
899 | static int netxen_nic_close(struct net_device *netdev) | |
900 | { | |
3176ff3e | 901 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
902 | int i, j; |
903 | struct netxen_cmd_buffer *cmd_buff; | |
904 | struct netxen_skb_frag *buffrag; | |
905 | ||
906 | netif_carrier_off(netdev); | |
907 | netif_stop_queue(netdev); | |
bea3348e | 908 | napi_disable(&adapter->napi); |
3d396eb1 | 909 | |
72b0a7a8 | 910 | if (adapter->stop_port) |
911 | adapter->stop_port(adapter); | |
912 | ||
e01872af | 913 | netxen_nic_disable_int(adapter); |
914 | ||
3176ff3e MT |
915 | cmd_buff = adapter->cmd_buf_arr; |
916 | for (i = 0; i < adapter->max_tx_desc_count; i++) { | |
917 | buffrag = cmd_buff->frag_array; | |
918 | if (buffrag->dma) { | |
919 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
920 | buffrag->length, PCI_DMA_TODEVICE); | |
96acb6eb | 921 | buffrag->dma = 0ULL; |
3176ff3e MT |
922 | } |
923 | for (j = 0; j < cmd_buff->frag_count; j++) { | |
924 | buffrag++; | |
3d396eb1 | 925 | if (buffrag->dma) { |
3176ff3e | 926 | pci_unmap_page(adapter->pdev, buffrag->dma, |
4790654c | 927 | buffrag->length, |
3176ff3e | 928 | PCI_DMA_TODEVICE); |
96acb6eb | 929 | buffrag->dma = 0ULL; |
3d396eb1 | 930 | } |
3d396eb1 | 931 | } |
3176ff3e MT |
932 | /* Free the skb we received in netxen_nic_xmit_frame */ |
933 | if (cmd_buff->skb) { | |
934 | dev_kfree_skb_any(cmd_buff->skb); | |
935 | cmd_buff->skb = NULL; | |
936 | } | |
937 | cmd_buff++; | |
3d396eb1 | 938 | } |
96acb6eb DP |
939 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
940 | FLUSH_SCHEDULED_WORK(); | |
941 | del_timer_sync(&adapter->watchdog_timer); | |
942 | } | |
3d396eb1 AK |
943 | |
944 | return 0; | |
945 | } | |
946 | ||
947 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
948 | { | |
3176ff3e | 949 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
950 | struct netxen_hardware_context *hw = &adapter->ahw; |
951 | unsigned int first_seg_len = skb->len - skb->data_len; | |
952 | struct netxen_skb_frag *buffrag; | |
953 | unsigned int i; | |
954 | ||
955 | u32 producer = 0; | |
956 | u32 saved_producer = 0; | |
957 | struct cmd_desc_type0 *hwdesc; | |
958 | int k; | |
959 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 AK |
960 | static int dropped_packet = 0; |
961 | int frag_count; | |
962 | u32 local_producer = 0; | |
963 | u32 max_tx_desc_count = 0; | |
964 | u32 last_cmd_consumer = 0; | |
965 | int no_of_desc; | |
966 | ||
3176ff3e | 967 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
968 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
969 | ||
970 | if (unlikely(skb->len <= 0)) { | |
971 | dev_kfree_skb_any(skb); | |
3176ff3e | 972 | adapter->stats.badskblen++; |
3d396eb1 AK |
973 | return NETDEV_TX_OK; |
974 | } | |
975 | ||
976 | if (frag_count > MAX_BUFFERS_PER_CMD) { | |
5bc51424 | 977 | printk("%s: %s netxen_nic_xmit_frame: frag_count (%d) " |
3d396eb1 AK |
978 | "too large, can handle only %d frags\n", |
979 | netxen_nic_driver_name, netdev->name, | |
980 | frag_count, MAX_BUFFERS_PER_CMD); | |
3176ff3e | 981 | adapter->stats.txdropped++; |
3d396eb1 AK |
982 | if ((++dropped_packet & 0xff) == 0xff) |
983 | printk("%s: %s droppped packets = %d\n", | |
984 | netxen_nic_driver_name, netdev->name, | |
985 | dropped_packet); | |
986 | ||
987 | return NETDEV_TX_OK; | |
988 | } | |
989 | ||
3d396eb1 AK |
990 | /* There 4 fragments per descriptor */ |
991 | no_of_desc = (frag_count + 3) >> 2; | |
cb8011ad AK |
992 | if (netdev->features & NETIF_F_TSO) { |
993 | if (skb_shinfo(skb)->gso_size > 0) { | |
994 | ||
3d396eb1 | 995 | no_of_desc++; |
ab6a5bb6 | 996 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 997 | sizeof(struct ethhdr)) > |
ed25ffa1 | 998 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
999 | no_of_desc++; |
1000 | } | |
3d396eb1 AK |
1001 | } |
1002 | } | |
53a01e00 | 1003 | |
1004 | spin_lock_bh(&adapter->tx_lock); | |
1005 | if (adapter->total_threads >= MAX_XMIT_PRODUCERS) { | |
1006 | goto out_requeue; | |
1007 | } | |
1008 | local_producer = adapter->cmd_producer; | |
3d396eb1 AK |
1009 | k = adapter->cmd_producer; |
1010 | max_tx_desc_count = adapter->max_tx_desc_count; | |
1011 | last_cmd_consumer = adapter->last_cmd_consumer; | |
1012 | if ((k + no_of_desc) >= | |
1013 | ((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count : | |
1014 | last_cmd_consumer)) { | |
53a01e00 | 1015 | goto out_requeue; |
3d396eb1 AK |
1016 | } |
1017 | k = get_index_range(k, max_tx_desc_count, no_of_desc); | |
1018 | adapter->cmd_producer = k; | |
1019 | adapter->total_threads++; | |
1020 | adapter->num_threads++; | |
1021 | ||
1022 | spin_unlock_bh(&adapter->tx_lock); | |
1023 | /* Copy the descriptors into the hardware */ | |
1024 | producer = local_producer; | |
1025 | saved_producer = producer; | |
1026 | hwdesc = &hw->cmd_desc_head[producer]; | |
1027 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
1028 | /* Take skb->data itself */ | |
1029 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cb8011ad | 1030 | if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { |
a608ab9c | 1031 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 1032 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
1033 | } else { |
1034 | pbuf->mss = 0; | |
1035 | hwdesc->mss = 0; | |
1036 | } | |
3d396eb1 AK |
1037 | pbuf->total_length = skb->len; |
1038 | pbuf->skb = skb; | |
1039 | pbuf->cmd = TX_ETHER_PKT; | |
1040 | pbuf->frag_count = frag_count; | |
3176ff3e | 1041 | pbuf->port = adapter->portnum; |
3d396eb1 | 1042 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1043 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1044 | PCI_DMA_TODEVICE); |
1045 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1046 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1047 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1048 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1049 | |
3176ff3e | 1050 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1051 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1052 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1053 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1054 | ||
1055 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1056 | struct skb_frag_struct *frag; | |
1057 | int len, temp_len; | |
1058 | unsigned long offset; | |
1059 | dma_addr_t temp_dma; | |
1060 | ||
1061 | /* move to next desc. if there is a need */ | |
1062 | if ((i & 0x3) == 0) { | |
1063 | k = 0; | |
1064 | producer = get_next_index(producer, | |
1065 | adapter->max_tx_desc_count); | |
1066 | hwdesc = &hw->cmd_desc_head[producer]; | |
1067 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1068 | pbuf = &adapter->cmd_buf_arr[producer]; |
1069 | pbuf->skb = NULL; | |
3d396eb1 AK |
1070 | } |
1071 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1072 | len = frag->size; | |
1073 | offset = frag->page_offset; | |
1074 | ||
1075 | temp_len = len; | |
3176ff3e | 1076 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1077 | len, PCI_DMA_TODEVICE); |
1078 | ||
1079 | buffrag++; | |
1080 | buffrag->dma = temp_dma; | |
1081 | buffrag->length = temp_len; | |
1082 | ||
1083 | DPRINTK(INFO, "for loop. i=%d k=%d\n", i, k); | |
1084 | switch (k) { | |
1085 | case 0: | |
1086 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1087 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1088 | break; | |
1089 | case 1: | |
1090 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1091 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1092 | break; | |
1093 | case 2: | |
1094 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1095 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1096 | break; | |
1097 | case 3: | |
a608ab9c | 1098 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1099 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1100 | break; | |
1101 | } | |
1102 | frag++; | |
1103 | } | |
1104 | producer = get_next_index(producer, adapter->max_tx_desc_count); | |
1105 | ||
1106 | /* might change opcode to TX_TCP_LSO */ | |
1107 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1108 | ||
1109 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1110 | * the descriptor ring | |
1111 | */ | |
ed25ffa1 AK |
1112 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1113 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1114 | int hdr_len, first_hdr_len, more_hdr; |
1115 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1116 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1117 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1118 | more_hdr = 1; |
1119 | } else { | |
1120 | first_hdr_len = hdr_len; | |
1121 | more_hdr = 0; | |
1122 | } | |
1123 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1124 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1125 | pbuf = &adapter->cmd_buf_arr[producer]; |
1126 | pbuf->skb = NULL; | |
3d396eb1 AK |
1127 | |
1128 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1129 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 AK |
1130 | (void *)(skb->data), first_hdr_len); |
1131 | producer = get_next_index(producer, max_tx_desc_count); | |
1132 | ||
1133 | if (more_hdr) { | |
1134 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1135 | pbuf = &adapter->cmd_buf_arr[producer]; |
1136 | pbuf->skb = NULL; | |
3d396eb1 AK |
1137 | /* copy the next 64 bytes - should be enough except |
1138 | * for pathological case | |
1139 | */ | |
d626f62b ACM |
1140 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1141 | hwdesc, | |
1142 | (hdr_len - | |
1143 | first_hdr_len)); | |
3d396eb1 AK |
1144 | producer = get_next_index(producer, max_tx_desc_count); |
1145 | } | |
1146 | } | |
6c80b18d | 1147 | |
3d396eb1 | 1148 | spin_lock_bh(&adapter->tx_lock); |
5dc16268 | 1149 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1150 | |
3d396eb1 AK |
1151 | /* Code to update the adapter considering how many producer threads |
1152 | are currently working */ | |
1153 | if ((--adapter->num_threads) == 0) { | |
1154 | /* This is the last thread */ | |
1155 | u32 crb_producer = adapter->cmd_producer; | |
3176ff3e | 1156 | netxen_nic_update_cmd_producer(adapter, crb_producer); |
3d396eb1 AK |
1157 | wmb(); |
1158 | adapter->total_threads = 0; | |
3d396eb1 AK |
1159 | } |
1160 | ||
3176ff3e | 1161 | adapter->stats.xmitfinished++; |
3d396eb1 AK |
1162 | netdev->trans_start = jiffies; |
1163 | ||
53a01e00 | 1164 | spin_unlock_bh(&adapter->tx_lock); |
3d396eb1 | 1165 | return NETDEV_TX_OK; |
53a01e00 | 1166 | |
1167 | out_requeue: | |
1168 | netif_stop_queue(netdev); | |
1169 | adapter->flags |= NETXEN_NETDEV_STATUS; | |
1170 | ||
1171 | spin_unlock_bh(&adapter->tx_lock); | |
1172 | return NETDEV_TX_BUSY; | |
3d396eb1 AK |
1173 | } |
1174 | ||
1175 | static void netxen_watchdog(unsigned long v) | |
1176 | { | |
1177 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1178 | |
1179 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1180 | } |
1181 | ||
1182 | static void netxen_tx_timeout(struct net_device *netdev) | |
1183 | { | |
3176ff3e MT |
1184 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1185 | netdev_priv(netdev); | |
1186 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1187 | } |
1188 | ||
6d5aefb8 | 1189 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1190 | { |
4790654c | 1191 | struct netxen_adapter *adapter = |
3176ff3e | 1192 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1193 | |
1194 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1195 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1196 | |
6c80b18d MT |
1197 | netxen_nic_close(adapter->netdev); |
1198 | netxen_nic_open(adapter->netdev); | |
6c80b18d MT |
1199 | adapter->netdev->trans_start = jiffies; |
1200 | netif_wake_queue(adapter->netdev); | |
3d396eb1 AK |
1201 | } |
1202 | ||
05aaa02d DP |
1203 | static inline void |
1204 | netxen_handle_int(struct netxen_adapter *adapter) | |
3d396eb1 | 1205 | { |
2d1a3bbd | 1206 | netxen_nic_disable_int(adapter); |
05aaa02d | 1207 | napi_schedule(&adapter->napi); |
3d396eb1 AK |
1208 | } |
1209 | ||
1494a814 | 1210 | irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1211 | { |
1daec86a | 1212 | struct netxen_adapter *adapter = data; |
e01872af | 1213 | u32 our_int = 0; |
3d396eb1 | 1214 | |
05aaa02d DP |
1215 | our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); |
1216 | /* not our interrupt */ | |
1217 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1218 | return IRQ_NONE; | |
e01872af | 1219 | |
1220 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1221 | /* claim interrupt */ | |
05aaa02d | 1222 | writel(our_int & ~((u32)(0x80 << adapter->portnum)), |
e01872af | 1223 | NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); |
e01872af | 1224 | } |
1225 | ||
05aaa02d | 1226 | netxen_handle_int(adapter); |
3d396eb1 AK |
1227 | |
1228 | return IRQ_HANDLED; | |
1229 | } | |
1230 | ||
05aaa02d DP |
1231 | irqreturn_t netxen_msi_intr(int irq, void *data) |
1232 | { | |
1233 | struct netxen_adapter *adapter = data; | |
1234 | ||
1235 | netxen_handle_int(adapter); | |
1236 | return IRQ_HANDLED; | |
1237 | } | |
1238 | ||
bea3348e | 1239 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1240 | { |
bea3348e | 1241 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1242 | int tx_complete; |
3d396eb1 | 1243 | int ctx; |
bea3348e | 1244 | int work_done; |
3d396eb1 | 1245 | |
05aaa02d | 1246 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1247 | |
80922fbc | 1248 | work_done = 0; |
3d396eb1 AK |
1249 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1250 | /* | |
1251 | * Fairness issue. This will give undue weight to the | |
1252 | * receive context 0. | |
1253 | */ | |
1254 | ||
1255 | /* | |
1256 | * To avoid starvation, we give each of our receivers, | |
1257 | * a fraction of the quota. Sometimes, it might happen that we | |
1258 | * have enough quota to process every packet, but since all the | |
1259 | * packets are on one context, it gets only half of the quota, | |
1260 | * and ends up not processing it. | |
1261 | */ | |
bea3348e SH |
1262 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1263 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1264 | } |
1265 | ||
05aaa02d DP |
1266 | if ((work_done < budget) && tx_complete) { |
1267 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1268 | netxen_nic_enable_int(adapter); |
1269 | } | |
1270 | ||
bea3348e | 1271 | return work_done; |
3d396eb1 AK |
1272 | } |
1273 | ||
1274 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1275 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1276 | { | |
3176ff3e | 1277 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1278 | disable_irq(adapter->irq); |
1494a814 | 1279 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1280 | enable_irq(adapter->irq); |
1281 | } | |
1282 | #endif | |
3d396eb1 AK |
1283 | |
1284 | static struct pci_driver netxen_driver = { | |
1285 | .name = netxen_nic_driver_name, | |
1286 | .id_table = netxen_pci_tbl, | |
1287 | .probe = netxen_nic_probe, | |
1288 | .remove = __devexit_p(netxen_nic_remove) | |
1289 | }; | |
1290 | ||
1291 | /* Driver Registration on NetXen card */ | |
1292 | ||
1293 | static int __init netxen_init_module(void) | |
1294 | { | |
79ea13ce | 1295 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1296 | return -ENOMEM; |
1297 | ||
184231bd | 1298 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1299 | } |
1300 | ||
1301 | module_init(netxen_init_module); | |
1302 | ||
1303 | static void __exit netxen_exit_module(void) | |
1304 | { | |
1305 | /* | |
1306 | * Wait for some time to allow the dma to drain, if any. | |
1307 | */ | |
96acb6eb | 1308 | msleep(100); |
3d396eb1 | 1309 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1310 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1311 | } |
1312 | ||
1313 | module_exit(netxen_exit_module); |