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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 | |
f0c88f9c | 169 | if (adapter->msi_mode != MSI_MODE_MULTIFUNC) |
443be796 | 170 | writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); |
4638aef1 SH |
171 | |
172 | if (adapter->intr_scheme != -1 && | |
173 | adapter->intr_scheme != INTR_SCHEME_PERPORT) | |
174 | writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); | |
175 | ||
4638aef1 SH |
176 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { |
177 | do { | |
178 | writel(0xffffffff, | |
179 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS)); | |
180 | mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); | |
181 | if (!(mask & 0x80)) | |
182 | break; | |
183 | udelay(10); | |
184 | } while (--retries); | |
185 | ||
186 | if (!retries) { | |
187 | printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", | |
188 | netxen_nic_driver_name); | |
189 | } | |
443be796 DP |
190 | } else { |
191 | if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { | |
192 | writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter, | |
193 | msi_tgt_status[pci_fn])); | |
194 | } | |
4638aef1 | 195 | } |
4638aef1 SH |
196 | } |
197 | ||
198 | static void netxen_nic_enable_int(struct netxen_adapter *adapter) | |
199 | { | |
200 | u32 mask; | |
443be796 | 201 | int port = adapter->portnum; |
4638aef1 SH |
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 | ||
443be796 | 222 | writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); |
4638aef1 SH |
223 | |
224 | if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { | |
225 | mask = 0xbff; | |
226 | if (adapter->intr_scheme != -1 && | |
227 | adapter->intr_scheme != INTR_SCHEME_PERPORT) { | |
228 | writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); | |
229 | } | |
230 | writel(mask, | |
231 | PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK)); | |
232 | } | |
233 | ||
234 | DPRINTK(1, INFO, "Done with enable Int\n"); | |
235 | } | |
236 | ||
3d396eb1 AK |
237 | /* |
238 | * netxen_nic_probe() | |
239 | * | |
240 | * The Linux system will invoke this after identifying the vendor ID and | |
241 | * device Id in the pci_tbl supported by this module. | |
242 | * | |
243 | * A quad port card has one operational PCI config space, (function 0), | |
244 | * which is used to access all four ports. | |
245 | * | |
246 | * This routine will initialize the adapter, and setup the global parameters | |
247 | * along with the port's specific structure. | |
248 | */ | |
249 | static int __devinit | |
250 | netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
251 | { | |
252 | struct net_device *netdev = NULL; | |
253 | struct netxen_adapter *adapter = NULL; | |
ed25ffa1 AK |
254 | void __iomem *mem_ptr0 = NULL; |
255 | void __iomem *mem_ptr1 = NULL; | |
256 | void __iomem *mem_ptr2 = NULL; | |
6c80b18d MT |
257 | unsigned long first_page_group_end; |
258 | unsigned long first_page_group_start; | |
259 | ||
cb8011ad | 260 | |
a608ab9c | 261 | u8 __iomem *db_ptr = NULL; |
ed25ffa1 | 262 | unsigned long mem_base, mem_len, db_base, db_len; |
3176ff3e | 263 | int pci_using_dac, i = 0, err; |
3d396eb1 AK |
264 | int ring; |
265 | struct netxen_recv_context *recv_ctx = NULL; | |
266 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; | |
267 | struct netxen_cmd_buffer *cmd_buf_arr = NULL; | |
f305f789 | 268 | __le64 mac_addr[FLASH_NUM_PORTS + 1]; |
6c80b18d MT |
269 | int valid_mac = 0; |
270 | u32 val; | |
3176ff3e | 271 | int pci_func_id = PCI_FUNC(pdev->devfn); |
0795af57 | 272 | DECLARE_MAC_BUF(mac); |
3d396eb1 | 273 | |
cb8011ad | 274 | printk(KERN_INFO "%s \n", netxen_nic_driver_string); |
6c80b18d | 275 | |
3176ff3e | 276 | if (pdev->class != 0x020000) { |
5bc51424 | 277 | printk(KERN_ERR"NetXen function %d, class %x will not " |
3176ff3e | 278 | "be enabled.\n",pci_func_id, pdev->class); |
ed25ffa1 AK |
279 | return -ENODEV; |
280 | } | |
3d396eb1 AK |
281 | if ((err = pci_enable_device(pdev))) |
282 | return err; | |
283 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
284 | err = -ENODEV; | |
285 | goto err_out_disable_pdev; | |
286 | } | |
287 | ||
288 | if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) | |
289 | goto err_out_disable_pdev; | |
290 | ||
291 | pci_set_master(pdev); | |
44c10138 | 292 | if (pdev->revision == NX_P2_C1 && |
ed25ffa1 AK |
293 | (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && |
294 | (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { | |
3d396eb1 | 295 | pci_using_dac = 1; |
ed25ffa1 | 296 | } else { |
3d396eb1 AK |
297 | if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || |
298 | (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) | |
299 | goto err_out_free_res; | |
300 | ||
301 | pci_using_dac = 0; | |
302 | } | |
303 | ||
3176ff3e MT |
304 | |
305 | netdev = alloc_etherdev(sizeof(struct netxen_adapter)); | |
306 | if(!netdev) { | |
307 | printk(KERN_ERR"%s: Failed to allocate memory for the " | |
308 | "device block.Check system memory resource" | |
309 | " usage.\n", netxen_nic_driver_name); | |
310 | goto err_out_free_res; | |
311 | } | |
312 | ||
3176ff3e MT |
313 | SET_NETDEV_DEV(netdev, &pdev->dev); |
314 | ||
315 | adapter = netdev->priv; | |
3176ff3e MT |
316 | |
317 | adapter->ahw.pdev = pdev; | |
13ba9c77 MT |
318 | adapter->ahw.pci_func = pci_func_id; |
319 | ||
3d396eb1 AK |
320 | /* remap phys address */ |
321 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
322 | mem_len = pci_resource_len(pdev, 0); | |
323 | ||
324 | /* 128 Meg of memory */ | |
6c80b18d MT |
325 | if (mem_len == NETXEN_PCI_128MB_SIZE) { |
326 | mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); | |
327 | mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, | |
328 | SECOND_PAGE_GROUP_SIZE); | |
329 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, | |
330 | THIRD_PAGE_GROUP_SIZE); | |
331 | first_page_group_start = FIRST_PAGE_GROUP_START; | |
332 | first_page_group_end = FIRST_PAGE_GROUP_END; | |
333 | } else if (mem_len == NETXEN_PCI_32MB_SIZE) { | |
334 | mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); | |
335 | mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - | |
336 | SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); | |
337 | first_page_group_start = 0; | |
338 | first_page_group_end = 0; | |
339 | } else { | |
4790654c | 340 | err = -EIO; |
6c80b18d MT |
341 | goto err_out_free_netdev; |
342 | } | |
cb8011ad | 343 | |
79ea13ce AV |
344 | if ((!mem_ptr0 && mem_len == NETXEN_PCI_128MB_SIZE) || |
345 | !mem_ptr1 || !mem_ptr2) { | |
ed25ffa1 | 346 | DPRINTK(ERR, |
cb8011ad AK |
347 | "Cannot remap adapter memory aborting.:" |
348 | "0 -> %p, 1 -> %p, 2 -> %p\n", | |
349 | mem_ptr0, mem_ptr1, mem_ptr2); | |
350 | ||
3d396eb1 | 351 | err = -EIO; |
ed25ffa1 AK |
352 | goto err_out_iounmap; |
353 | } | |
354 | db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ | |
355 | db_len = pci_resource_len(pdev, 4); | |
356 | ||
357 | if (db_len == 0) { | |
358 | printk(KERN_ERR "%s: doorbell is disabled\n", | |
359 | netxen_nic_driver_name); | |
360 | err = -EIO; | |
361 | goto err_out_iounmap; | |
362 | } | |
363 | DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, | |
364 | db_len); | |
365 | ||
366 | db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); | |
a608ab9c | 367 | if (!db_ptr) { |
ed25ffa1 AK |
368 | printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
369 | netxen_nic_driver_name); | |
370 | err = -EIO; | |
371 | goto err_out_iounmap; | |
3d396eb1 | 372 | } |
ed25ffa1 | 373 | DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); |
3d396eb1 | 374 | |
6c80b18d MT |
375 | adapter->ahw.pci_base0 = mem_ptr0; |
376 | adapter->ahw.first_page_group_start = first_page_group_start; | |
377 | adapter->ahw.first_page_group_end = first_page_group_end; | |
378 | adapter->ahw.pci_base1 = mem_ptr1; | |
379 | adapter->ahw.pci_base2 = mem_ptr2; | |
380 | adapter->ahw.db_base = db_ptr; | |
381 | adapter->ahw.db_len = db_len; | |
3d396eb1 | 382 | |
3176ff3e MT |
383 | adapter->netdev = netdev; |
384 | adapter->pdev = pdev; | |
2d1a3bbd | 385 | |
bea3348e SH |
386 | netif_napi_add(netdev, &adapter->napi, |
387 | netxen_nic_poll, NETXEN_NETDEV_WEIGHT); | |
388 | ||
2d1a3bbd | 389 | /* this will be read from FW later */ |
390 | adapter->intr_scheme = -1; | |
443be796 | 391 | adapter->msi_mode = -1; |
2d1a3bbd | 392 | |
393 | /* This will be reset for mezz cards */ | |
3176ff3e | 394 | adapter->portnum = pci_func_id; |
2d1a3bbd | 395 | adapter->status &= ~NETXEN_NETDEV_STATUS; |
200eef20 | 396 | adapter->rx_csum = 1; |
3176ff3e MT |
397 | |
398 | netdev->open = netxen_nic_open; | |
399 | netdev->stop = netxen_nic_close; | |
400 | netdev->hard_start_xmit = netxen_nic_xmit_frame; | |
4790654c | 401 | netdev->get_stats = netxen_nic_get_stats; |
3176ff3e MT |
402 | netdev->set_multicast_list = netxen_nic_set_multi; |
403 | netdev->set_mac_address = netxen_nic_set_mac; | |
404 | netdev->change_mtu = netxen_nic_change_mtu; | |
405 | netdev->tx_timeout = netxen_tx_timeout; | |
05aaa02d | 406 | netdev->watchdog_timeo = 2*HZ; |
3176ff3e MT |
407 | |
408 | netxen_nic_change_mtu(netdev, netdev->mtu); | |
409 | ||
410 | SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); | |
3176ff3e MT |
411 | #ifdef CONFIG_NET_POLL_CONTROLLER |
412 | netdev->poll_controller = netxen_nic_poll_controller; | |
413 | #endif | |
414 | /* ScatterGather support */ | |
415 | netdev->features = NETIF_F_SG; | |
416 | netdev->features |= NETIF_F_IP_CSUM; | |
417 | netdev->features |= NETIF_F_TSO; | |
418 | ||
419 | if (pci_using_dac) | |
420 | netdev->features |= NETIF_F_HIGHDMA; | |
421 | ||
644caeef | 422 | if (pci_enable_msi(pdev)) |
3176ff3e | 423 | adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; |
644caeef | 424 | else |
3176ff3e MT |
425 | adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
426 | ||
6c80b18d MT |
427 | netdev->irq = pdev->irq; |
428 | INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); | |
429 | ||
430 | /* | |
431 | * Set the CRB window to invalid. If any register in window 0 is | |
432 | * accessed it should set the window to 0 and then reset it to 1. | |
433 | */ | |
434 | adapter->curr_window = 255; | |
435 | ||
436 | /* initialize the adapter */ | |
437 | netxen_initialize_adapter_hw(adapter); | |
438 | ||
6c80b18d MT |
439 | /* |
440 | * Adapter in our case is quad port so initialize it before | |
441 | * initializing the ports | |
442 | */ | |
443 | ||
444 | netxen_initialize_adapter_ops(adapter); | |
445 | ||
446 | adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; | |
447 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) || | |
4790654c JG |
448 | (adapter->ahw.boardcfg.board_type == |
449 | NETXEN_BRDTYPE_P2_SB31_2G)) | |
6c80b18d MT |
450 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; |
451 | else | |
452 | adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; | |
453 | adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; | |
454 | adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; | |
455 | ||
3d396eb1 AK |
456 | cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); |
457 | if (cmd_buf_arr == NULL) { | |
ed25ffa1 AK |
458 | printk(KERN_ERR |
459 | "%s: Could not allocate cmd_buf_arr memory:%d\n", | |
460 | netxen_nic_driver_name, (int)TX_RINGSIZE); | |
3d396eb1 AK |
461 | err = -ENOMEM; |
462 | goto err_out_free_adapter; | |
463 | } | |
464 | memset(cmd_buf_arr, 0, TX_RINGSIZE); | |
6c80b18d | 465 | adapter->cmd_buf_arr = cmd_buf_arr; |
3d396eb1 AK |
466 | |
467 | for (i = 0; i < MAX_RCV_CTX; ++i) { | |
468 | recv_ctx = &adapter->recv_ctx[i]; | |
469 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
470 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
471 | switch (RCV_DESC_TYPE(ring)) { | |
472 | case RCV_DESC_NORMAL: | |
473 | rcv_desc->max_rx_desc_count = | |
474 | adapter->max_rx_desc_count; | |
475 | rcv_desc->flags = RCV_DESC_NORMAL; | |
476 | rcv_desc->dma_size = RX_DMA_MAP_LEN; | |
477 | rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; | |
478 | break; | |
479 | ||
480 | case RCV_DESC_JUMBO: | |
481 | rcv_desc->max_rx_desc_count = | |
482 | adapter->max_jumbo_rx_desc_count; | |
483 | rcv_desc->flags = RCV_DESC_JUMBO; | |
484 | rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; | |
485 | rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; | |
486 | break; | |
487 | ||
ed25ffa1 AK |
488 | case RCV_RING_LRO: |
489 | rcv_desc->max_rx_desc_count = | |
490 | adapter->max_lro_rx_desc_count; | |
491 | rcv_desc->flags = RCV_DESC_LRO; | |
492 | rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; | |
493 | rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; | |
494 | break; | |
495 | ||
3d396eb1 AK |
496 | } |
497 | rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) | |
498 | vmalloc(RCV_BUFFSIZE); | |
499 | ||
500 | if (rcv_desc->rx_buf_arr == NULL) { | |
5bc51424 | 501 | printk(KERN_ERR "%s: Could not allocate " |
ed25ffa1 AK |
502 | "rcv_desc->rx_buf_arr memory:%d\n", |
503 | netxen_nic_driver_name, | |
504 | (int)RCV_BUFFSIZE); | |
3d396eb1 AK |
505 | err = -ENOMEM; |
506 | goto err_out_free_rx_buffer; | |
507 | } | |
508 | memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); | |
509 | } | |
510 | ||
511 | } | |
512 | ||
ed25ffa1 | 513 | netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ |
6c80b18d | 514 | |
13ba9c77 | 515 | /* Mezz cards have PCI function 0,2,3 enabled */ |
6c80b18d MT |
516 | if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) |
517 | && (pci_func_id >= 2)) | |
13ba9c77 MT |
518 | adapter->portnum = pci_func_id - 2; |
519 | ||
cb8011ad | 520 | #ifdef CONFIG_IA64 |
13ba9c77 | 521 | if(adapter->portnum == 0) { |
3176ff3e MT |
522 | netxen_pinit_from_rom(adapter, 0); |
523 | udelay(500); | |
524 | netxen_load_firmware(adapter); | |
525 | } | |
cb8011ad AK |
526 | #endif |
527 | ||
3d396eb1 AK |
528 | init_timer(&adapter->watchdog_timer); |
529 | adapter->ahw.xg_linkup = 0; | |
530 | adapter->watchdog_timer.function = &netxen_watchdog; | |
531 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
6d5aefb8 | 532 | INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); |
3d396eb1 | 533 | adapter->ahw.pdev = pdev; |
44c10138 | 534 | adapter->ahw.revision_id = pdev->revision; |
3d396eb1 | 535 | |
6c80b18d MT |
536 | /* make sure Window == 1 */ |
537 | netxen_nic_pci_change_crbwindow(adapter, 1); | |
538 | ||
3176ff3e MT |
539 | netxen_nic_update_cmd_producer(adapter, 0); |
540 | netxen_nic_update_cmd_consumer(adapter, 0); | |
6c80b18d | 541 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); |
3d396eb1 AK |
542 | |
543 | if (netxen_is_flash_supported(adapter) == 0 && | |
544 | netxen_get_flash_mac_addr(adapter, mac_addr) == 0) | |
545 | valid_mac = 1; | |
546 | else | |
547 | valid_mac = 0; | |
548 | ||
3176ff3e | 549 | if (valid_mac) { |
13ba9c77 | 550 | unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum]; |
3176ff3e MT |
551 | netdev->dev_addr[0] = *(p + 5); |
552 | netdev->dev_addr[1] = *(p + 4); | |
553 | netdev->dev_addr[2] = *(p + 3); | |
554 | netdev->dev_addr[3] = *(p + 2); | |
555 | netdev->dev_addr[4] = *(p + 1); | |
556 | netdev->dev_addr[5] = *(p + 0); | |
557 | ||
558 | memcpy(netdev->perm_addr, netdev->dev_addr, | |
559 | netdev->addr_len); | |
560 | if (!is_valid_ether_addr(netdev->perm_addr)) { | |
0795af57 JP |
561 | printk(KERN_ERR "%s: Bad MAC address %s.\n", |
562 | netxen_nic_driver_name, | |
563 | print_mac(mac, netdev->dev_addr)); | |
3176ff3e MT |
564 | } else { |
565 | if (adapter->macaddr_set) | |
566 | adapter->macaddr_set(adapter, | |
567 | netdev->dev_addr); | |
568 | } | |
569 | } | |
570 | ||
6c80b18d | 571 | if (adapter->portnum == 0) { |
13ba9c77 | 572 | err = netxen_initialize_adapter_offload(adapter); |
4790654c | 573 | if (err) |
6c80b18d | 574 | goto err_out_free_rx_buffer; |
4790654c | 575 | val = readl(NETXEN_CRB_NORMALIZE(adapter, |
6c80b18d MT |
576 | NETXEN_CAM_RAM(0x1fc))); |
577 | if (val == 0x55555555) { | |
578 | /* This is the first boot after power up */ | |
644caeef | 579 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); |
96acb6eb DP |
580 | if (!(val & 0x4)) { |
581 | val |= 0x4; | |
582 | netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val); | |
583 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); | |
584 | if (!(val & 0x4)) | |
585 | printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n", | |
586 | netxen_nic_driver_name); | |
587 | } | |
6c80b18d MT |
588 | val = readl(NETXEN_CRB_NORMALIZE(adapter, |
589 | NETXEN_ROMUSB_GLB_SW_RESET)); | |
590 | printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val); | |
591 | if (val != 0x80000f) { | |
592 | /* clear the register for future unloads/loads */ | |
644caeef | 593 | writel(0, NETXEN_CRB_NORMALIZE(adapter, |
594 | NETXEN_CAM_RAM(0x1fc))); | |
595 | printk(KERN_ERR "ERROR in NetXen HW init sequence.\n"); | |
596 | err = -ENODEV; | |
597 | goto err_out_free_dev; | |
6c80b18d | 598 | } |
6c80b18d | 599 | } |
96acb6eb DP |
600 | |
601 | /* clear the register for future unloads/loads */ | |
602 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
6c80b18d MT |
603 | printk(KERN_INFO "State: 0x%0x\n", |
604 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
605 | ||
606 | /* | |
607 | * Tell the hardware our version number. | |
608 | */ | |
4790654c | 609 | i = (_NETXEN_NIC_LINUX_MAJOR << 16) |
6c80b18d MT |
610 | | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
611 | | (_NETXEN_NIC_LINUX_SUBVERSION); | |
612 | writel(i, NETXEN_CRB_NORMALIZE(adapter, CRB_DRIVER_VERSION)); | |
3d396eb1 | 613 | |
3176ff3e MT |
614 | /* Unlock the HW, prompting the boot sequence */ |
615 | writel(1, | |
616 | NETXEN_CRB_NORMALIZE(adapter, | |
617 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); | |
618 | /* Handshake with the card before we register the devices. */ | |
619 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); | |
620 | } | |
3d396eb1 | 621 | |
3d396eb1 | 622 | /* |
6c80b18d | 623 | * See if the firmware gave us a virtual-physical port mapping. |
3d396eb1 | 624 | */ |
6c80b18d MT |
625 | i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum))); |
626 | if (i != 0x55555555) | |
627 | physical_port[adapter->portnum] = i; | |
628 | ||
3176ff3e MT |
629 | netif_carrier_off(netdev); |
630 | netif_stop_queue(netdev); | |
631 | ||
6c80b18d MT |
632 | if ((err = register_netdev(netdev))) { |
633 | printk(KERN_ERR "%s: register_netdev failed port #%d" | |
634 | " aborting\n", netxen_nic_driver_name, | |
635 | adapter->portnum); | |
636 | err = -EIO; | |
637 | goto err_out_free_dev; | |
638 | } | |
639 | ||
640 | pci_set_drvdata(pdev, adapter); | |
3d396eb1 AK |
641 | |
642 | switch (adapter->ahw.board_type) { | |
3176ff3e MT |
643 | case NETXEN_NIC_GBE: |
644 | printk(KERN_INFO "%s: QUAD GbE board initialized\n", | |
645 | netxen_nic_driver_name); | |
646 | break; | |
3d396eb1 | 647 | |
3176ff3e | 648 | case NETXEN_NIC_XGBE: |
4790654c | 649 | printk(KERN_INFO "%s: XGbE board initialized\n", |
3176ff3e MT |
650 | netxen_nic_driver_name); |
651 | break; | |
3d396eb1 AK |
652 | } |
653 | ||
654 | adapter->driver_mismatch = 0; | |
655 | ||
656 | return 0; | |
657 | ||
6c80b18d MT |
658 | err_out_free_dev: |
659 | if (adapter->portnum == 0) | |
660 | netxen_free_adapter_offload(adapter); | |
ed25ffa1 | 661 | |
6c80b18d | 662 | err_out_free_rx_buffer: |
3d396eb1 AK |
663 | for (i = 0; i < MAX_RCV_CTX; ++i) { |
664 | recv_ctx = &adapter->recv_ctx[i]; | |
665 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
666 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
667 | if (rcv_desc->rx_buf_arr != NULL) { | |
668 | vfree(rcv_desc->rx_buf_arr); | |
669 | rcv_desc->rx_buf_arr = NULL; | |
670 | } | |
671 | } | |
672 | } | |
3d396eb1 AK |
673 | vfree(cmd_buf_arr); |
674 | ||
6c80b18d MT |
675 | err_out_free_adapter: |
676 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
677 | pci_disable_msi(pdev); | |
678 | ||
3d396eb1 | 679 | pci_set_drvdata(pdev, NULL); |
3d396eb1 | 680 | |
ed25ffa1 AK |
681 | if (db_ptr) |
682 | iounmap(db_ptr); | |
683 | ||
6c80b18d | 684 | err_out_iounmap: |
ed25ffa1 AK |
685 | if (mem_ptr0) |
686 | iounmap(mem_ptr0); | |
687 | if (mem_ptr1) | |
688 | iounmap(mem_ptr1); | |
689 | if (mem_ptr2) | |
690 | iounmap(mem_ptr2); | |
cb8011ad | 691 | |
6c80b18d MT |
692 | err_out_free_netdev: |
693 | free_netdev(netdev); | |
694 | ||
695 | err_out_free_res: | |
3d396eb1 | 696 | pci_release_regions(pdev); |
6c80b18d MT |
697 | |
698 | err_out_disable_pdev: | |
3d396eb1 AK |
699 | pci_disable_device(pdev); |
700 | return err; | |
701 | } | |
702 | ||
703 | static void __devexit netxen_nic_remove(struct pci_dev *pdev) | |
704 | { | |
705 | struct netxen_adapter *adapter; | |
3176ff3e | 706 | struct net_device *netdev; |
3d396eb1 AK |
707 | struct netxen_rx_buffer *buffer; |
708 | struct netxen_recv_context *recv_ctx; | |
709 | struct netxen_rcv_desc_ctx *rcv_desc; | |
96acb6eb DP |
710 | int i, ctxid, ring; |
711 | static int init_firmware_done = 0; | |
3d396eb1 | 712 | |
6c80b18d | 713 | adapter = pci_get_drvdata(pdev); |
3d396eb1 AK |
714 | if (adapter == NULL) |
715 | return; | |
716 | ||
6c80b18d MT |
717 | netdev = adapter->netdev; |
718 | ||
96acb6eb DP |
719 | unregister_netdev(netdev); |
720 | ||
96acb6eb DP |
721 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
722 | init_firmware_done++; | |
3d396eb1 | 723 | netxen_free_hw_resources(adapter); |
96acb6eb | 724 | } |
3d396eb1 | 725 | |
3d396eb1 AK |
726 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
727 | recv_ctx = &adapter->recv_ctx[ctxid]; | |
728 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { | |
729 | rcv_desc = &recv_ctx->rcv_desc[ring]; | |
730 | for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { | |
731 | buffer = &(rcv_desc->rx_buf_arr[i]); | |
732 | if (buffer->state == NETXEN_BUFFER_FREE) | |
733 | continue; | |
734 | pci_unmap_single(pdev, buffer->dma, | |
735 | rcv_desc->dma_size, | |
736 | PCI_DMA_FROMDEVICE); | |
737 | if (buffer->skb != NULL) | |
738 | dev_kfree_skb_any(buffer->skb); | |
739 | } | |
740 | vfree(rcv_desc->rx_buf_arr); | |
741 | } | |
742 | } | |
743 | ||
6c80b18d MT |
744 | vfree(adapter->cmd_buf_arr); |
745 | ||
96acb6eb DP |
746 | if (adapter->portnum == 0) { |
747 | if (init_firmware_done) { | |
96acb6eb | 748 | i = 100; |
ceded32f | 749 | do { |
750 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
751 | break; | |
96acb6eb | 752 | msleep(100); |
ceded32f | 753 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
754 | break; | |
755 | } while (--i); | |
96acb6eb | 756 | |
ceded32f | 757 | if (i == 0) |
758 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", | |
759 | netdev->name); | |
96acb6eb DP |
760 | |
761 | /* clear the register for future unloads/loads */ | |
762 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
763 | printk(KERN_INFO "State: 0x%0x\n", | |
764 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
765 | ||
766 | /* leave the hw in the same state as reboot */ | |
767 | writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); | |
ceded32f | 768 | netxen_pinit_from_rom(adapter, 0); |
96acb6eb | 769 | msleep(1); |
ceded32f | 770 | netxen_load_firmware(adapter); |
96acb6eb DP |
771 | netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
772 | } | |
773 | ||
774 | /* clear the register for future unloads/loads */ | |
775 | writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); | |
776 | printk(KERN_INFO "State: 0x%0x\n", | |
777 | readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); | |
778 | ||
96acb6eb | 779 | i = 100; |
ceded32f | 780 | do { |
781 | if (dma_watchdog_shutdown_request(adapter) == 1) | |
782 | break; | |
96acb6eb | 783 | msleep(100); |
ceded32f | 784 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
785 | break; | |
786 | } while (--i); | |
96acb6eb DP |
787 | |
788 | if (i) { | |
789 | netxen_free_adapter_offload(adapter); | |
790 | } else { | |
ceded32f | 791 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
792 | netdev->name); | |
96acb6eb | 793 | } |
96acb6eb DP |
794 | } |
795 | ||
3052246c | 796 | if (adapter->irq) |
797 | free_irq(adapter->irq, adapter); | |
798 | ||
799 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) | |
800 | pci_disable_msi(pdev); | |
801 | ||
6c80b18d MT |
802 | iounmap(adapter->ahw.db_base); |
803 | iounmap(adapter->ahw.pci_base0); | |
804 | iounmap(adapter->ahw.pci_base1); | |
805 | iounmap(adapter->ahw.pci_base2); | |
595e3fb8 MT |
806 | |
807 | pci_release_regions(pdev); | |
3052246c | 808 | pci_disable_device(pdev); |
595e3fb8 MT |
809 | pci_set_drvdata(pdev, NULL); |
810 | ||
6c80b18d | 811 | free_netdev(netdev); |
3d396eb1 AK |
812 | } |
813 | ||
814 | /* | |
815 | * Called when a network interface is made active | |
816 | * @returns 0 on success, negative value on failure | |
817 | */ | |
818 | static int netxen_nic_open(struct net_device *netdev) | |
819 | { | |
3176ff3e | 820 | struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv; |
3d396eb1 AK |
821 | int err = 0; |
822 | int ctx, ring; | |
05aaa02d DP |
823 | irq_handler_t handler; |
824 | unsigned long flags = IRQF_SAMPLE_RANDOM; | |
3d396eb1 AK |
825 | |
826 | if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { | |
827 | err = netxen_init_firmware(adapter); | |
828 | if (err != 0) { | |
829 | printk(KERN_ERR "Failed to init firmware\n"); | |
830 | return -EIO; | |
831 | } | |
832 | netxen_nic_flash_print(adapter); | |
833 | ||
834 | /* setup all the resources for the Phantom... */ | |
835 | /* this include the descriptors for rcv, tx, and status */ | |
836 | netxen_nic_clear_stats(adapter); | |
837 | err = netxen_nic_hw_resources(adapter); | |
838 | if (err) { | |
839 | printk(KERN_ERR "Error in setting hw resources:%d\n", | |
840 | err); | |
841 | return err; | |
842 | } | |
3d396eb1 | 843 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
cb8011ad | 844 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) |
3d396eb1 | 845 | netxen_post_rx_buffers(adapter, ctx, ring); |
3d396eb1 | 846 | } |
ed25ffa1 | 847 | adapter->irq = adapter->ahw.pdev->irq; |
05aaa02d DP |
848 | if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
849 | handler = netxen_msi_intr; | |
850 | else { | |
851 | flags |= IRQF_SHARED; | |
852 | handler = netxen_intr; | |
853 | } | |
854 | err = request_irq(adapter->irq, handler, | |
855 | flags, netdev->name, adapter); | |
3d396eb1 AK |
856 | if (err) { |
857 | printk(KERN_ERR "request_irq failed with: %d\n", err); | |
ed25ffa1 | 858 | netxen_free_hw_resources(adapter); |
3d396eb1 AK |
859 | return err; |
860 | } | |
ed25ffa1 AK |
861 | |
862 | adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; | |
863 | } | |
3d396eb1 AK |
864 | /* Done here again so that even if phantom sw overwrote it, |
865 | * we set it */ | |
595e3fb8 MT |
866 | if (adapter->init_port |
867 | && adapter->init_port(adapter, adapter->portnum) != 0) { | |
868 | printk(KERN_ERR "%s: Failed to initialize port %d\n", | |
869 | netxen_nic_driver_name, adapter->portnum); | |
595e3fb8 MT |
870 | return -EIO; |
871 | } | |
7eec517c | 872 | if (adapter->macaddr_set) |
873 | adapter->macaddr_set(adapter, netdev->dev_addr); | |
595e3fb8 | 874 | |
3176ff3e | 875 | netxen_nic_set_link_parameters(adapter); |
3d396eb1 AK |
876 | |
877 | netxen_nic_set_multi(netdev); | |
ed25ffa1 | 878 | if (adapter->set_mtu) |
3176ff3e | 879 | adapter->set_mtu(adapter, netdev->mtu); |
ed25ffa1 | 880 | |
05aaa02d DP |
881 | if (!adapter->driver_mismatch) |
882 | mod_timer(&adapter->watchdog_timer, jiffies); | |
883 | ||
884 | napi_enable(&adapter->napi); | |
885 | netxen_nic_enable_int(adapter); | |
886 | ||
3d396eb1 AK |
887 | if (!adapter->driver_mismatch) |
888 | netif_start_queue(netdev); | |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | /* | |
894 | * netxen_nic_close - Disables a network interface entry point | |
895 | */ | |
896 | static int netxen_nic_close(struct net_device *netdev) | |
897 | { | |
3176ff3e | 898 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
899 | int i, j; |
900 | struct netxen_cmd_buffer *cmd_buff; | |
901 | struct netxen_skb_frag *buffrag; | |
902 | ||
903 | netif_carrier_off(netdev); | |
904 | netif_stop_queue(netdev); | |
bea3348e | 905 | napi_disable(&adapter->napi); |
3d396eb1 | 906 | |
72b0a7a8 | 907 | if (adapter->stop_port) |
908 | adapter->stop_port(adapter); | |
909 | ||
e01872af | 910 | netxen_nic_disable_int(adapter); |
911 | ||
3176ff3e MT |
912 | cmd_buff = adapter->cmd_buf_arr; |
913 | for (i = 0; i < adapter->max_tx_desc_count; i++) { | |
914 | buffrag = cmd_buff->frag_array; | |
915 | if (buffrag->dma) { | |
916 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
917 | buffrag->length, PCI_DMA_TODEVICE); | |
96acb6eb | 918 | buffrag->dma = 0ULL; |
3176ff3e MT |
919 | } |
920 | for (j = 0; j < cmd_buff->frag_count; j++) { | |
921 | buffrag++; | |
3d396eb1 | 922 | if (buffrag->dma) { |
3176ff3e | 923 | pci_unmap_page(adapter->pdev, buffrag->dma, |
4790654c | 924 | buffrag->length, |
3176ff3e | 925 | PCI_DMA_TODEVICE); |
96acb6eb | 926 | buffrag->dma = 0ULL; |
3d396eb1 | 927 | } |
3d396eb1 | 928 | } |
3176ff3e MT |
929 | /* Free the skb we received in netxen_nic_xmit_frame */ |
930 | if (cmd_buff->skb) { | |
931 | dev_kfree_skb_any(cmd_buff->skb); | |
932 | cmd_buff->skb = NULL; | |
933 | } | |
934 | cmd_buff++; | |
3d396eb1 | 935 | } |
96acb6eb DP |
936 | if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
937 | FLUSH_SCHEDULED_WORK(); | |
938 | del_timer_sync(&adapter->watchdog_timer); | |
939 | } | |
3d396eb1 AK |
940 | |
941 | return 0; | |
942 | } | |
943 | ||
944 | static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
945 | { | |
3176ff3e | 946 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 AK |
947 | struct netxen_hardware_context *hw = &adapter->ahw; |
948 | unsigned int first_seg_len = skb->len - skb->data_len; | |
949 | struct netxen_skb_frag *buffrag; | |
950 | unsigned int i; | |
951 | ||
ba53e6b4 | 952 | u32 producer, consumer; |
3d396eb1 AK |
953 | u32 saved_producer = 0; |
954 | struct cmd_desc_type0 *hwdesc; | |
955 | int k; | |
956 | struct netxen_cmd_buffer *pbuf = NULL; | |
3d396eb1 | 957 | int frag_count; |
3d396eb1 | 958 | int no_of_desc; |
ba53e6b4 | 959 | u32 num_txd = adapter->max_tx_desc_count; |
3d396eb1 | 960 | |
3d396eb1 AK |
961 | frag_count = skb_shinfo(skb)->nr_frags + 1; |
962 | ||
3d396eb1 AK |
963 | /* There 4 fragments per descriptor */ |
964 | no_of_desc = (frag_count + 3) >> 2; | |
cb8011ad AK |
965 | if (netdev->features & NETIF_F_TSO) { |
966 | if (skb_shinfo(skb)->gso_size > 0) { | |
967 | ||
3d396eb1 | 968 | no_of_desc++; |
ab6a5bb6 | 969 | if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + |
c9bdd4b5 | 970 | sizeof(struct ethhdr)) > |
ed25ffa1 | 971 | (sizeof(struct cmd_desc_type0) - 2)) { |
cb8011ad AK |
972 | no_of_desc++; |
973 | } | |
3d396eb1 AK |
974 | } |
975 | } | |
53a01e00 | 976 | |
ba53e6b4 DP |
977 | producer = adapter->cmd_producer; |
978 | smp_mb(); | |
979 | consumer = adapter->last_cmd_consumer; | |
980 | if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { | |
981 | netif_stop_queue(netdev); | |
982 | smp_mb(); | |
983 | return NETDEV_TX_BUSY; | |
53a01e00 | 984 | } |
3d396eb1 | 985 | |
3d396eb1 | 986 | /* Copy the descriptors into the hardware */ |
3d396eb1 AK |
987 | saved_producer = producer; |
988 | hwdesc = &hw->cmd_desc_head[producer]; | |
989 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
990 | /* Take skb->data itself */ | |
991 | pbuf = &adapter->cmd_buf_arr[producer]; | |
cb8011ad | 992 | if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { |
a608ab9c | 993 | pbuf->mss = skb_shinfo(skb)->gso_size; |
ed33ebe4 | 994 | hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
3d396eb1 AK |
995 | } else { |
996 | pbuf->mss = 0; | |
997 | hwdesc->mss = 0; | |
998 | } | |
3d396eb1 AK |
999 | pbuf->total_length = skb->len; |
1000 | pbuf->skb = skb; | |
1001 | pbuf->cmd = TX_ETHER_PKT; | |
1002 | pbuf->frag_count = frag_count; | |
3176ff3e | 1003 | pbuf->port = adapter->portnum; |
3d396eb1 | 1004 | buffrag = &pbuf->frag_array[0]; |
3176ff3e | 1005 | buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, |
3d396eb1 AK |
1006 | PCI_DMA_TODEVICE); |
1007 | buffrag->length = first_seg_len; | |
ed25ffa1 AK |
1008 | netxen_set_cmd_desc_totallength(hwdesc, skb->len); |
1009 | netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); | |
1010 | netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); | |
3d396eb1 | 1011 | |
3176ff3e | 1012 | netxen_set_cmd_desc_port(hwdesc, adapter->portnum); |
6c80b18d | 1013 | netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum); |
3d396eb1 AK |
1014 | hwdesc->buffer1_length = cpu_to_le16(first_seg_len); |
1015 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1016 | ||
1017 | for (i = 1, k = 1; i < frag_count; i++, k++) { | |
1018 | struct skb_frag_struct *frag; | |
1019 | int len, temp_len; | |
1020 | unsigned long offset; | |
1021 | dma_addr_t temp_dma; | |
1022 | ||
1023 | /* move to next desc. if there is a need */ | |
1024 | if ((i & 0x3) == 0) { | |
1025 | k = 0; | |
ba53e6b4 | 1026 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1027 | hwdesc = &hw->cmd_desc_head[producer]; |
1028 | memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); | |
53a01e00 | 1029 | pbuf = &adapter->cmd_buf_arr[producer]; |
1030 | pbuf->skb = NULL; | |
3d396eb1 AK |
1031 | } |
1032 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1033 | len = frag->size; | |
1034 | offset = frag->page_offset; | |
1035 | ||
1036 | temp_len = len; | |
3176ff3e | 1037 | temp_dma = pci_map_page(adapter->pdev, frag->page, offset, |
3d396eb1 AK |
1038 | len, PCI_DMA_TODEVICE); |
1039 | ||
1040 | buffrag++; | |
1041 | buffrag->dma = temp_dma; | |
1042 | buffrag->length = temp_len; | |
1043 | ||
3d396eb1 AK |
1044 | switch (k) { |
1045 | case 0: | |
1046 | hwdesc->buffer1_length = cpu_to_le16(temp_len); | |
1047 | hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); | |
1048 | break; | |
1049 | case 1: | |
1050 | hwdesc->buffer2_length = cpu_to_le16(temp_len); | |
1051 | hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); | |
1052 | break; | |
1053 | case 2: | |
1054 | hwdesc->buffer3_length = cpu_to_le16(temp_len); | |
1055 | hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); | |
1056 | break; | |
1057 | case 3: | |
a608ab9c | 1058 | hwdesc->buffer4_length = cpu_to_le16(temp_len); |
3d396eb1 AK |
1059 | hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); |
1060 | break; | |
1061 | } | |
1062 | frag++; | |
1063 | } | |
ba53e6b4 | 1064 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1065 | |
1066 | /* might change opcode to TX_TCP_LSO */ | |
1067 | netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); | |
1068 | ||
1069 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1070 | * the descriptor ring | |
1071 | */ | |
ed25ffa1 AK |
1072 | if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) |
1073 | == TX_TCP_LSO) { | |
3d396eb1 AK |
1074 | int hdr_len, first_hdr_len, more_hdr; |
1075 | hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; | |
ed25ffa1 AK |
1076 | if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { |
1077 | first_hdr_len = sizeof(struct cmd_desc_type0) - 2; | |
3d396eb1 AK |
1078 | more_hdr = 1; |
1079 | } else { | |
1080 | first_hdr_len = hdr_len; | |
1081 | more_hdr = 0; | |
1082 | } | |
1083 | /* copy the MAC/IP/TCP headers to the cmd descriptor list */ | |
1084 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1085 | pbuf = &adapter->cmd_buf_arr[producer]; |
1086 | pbuf->skb = NULL; | |
3d396eb1 AK |
1087 | |
1088 | /* copy the first 64 bytes */ | |
ed25ffa1 | 1089 | memcpy(((void *)hwdesc) + 2, |
3d396eb1 | 1090 | (void *)(skb->data), first_hdr_len); |
ba53e6b4 | 1091 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1092 | |
1093 | if (more_hdr) { | |
1094 | hwdesc = &hw->cmd_desc_head[producer]; | |
53a01e00 | 1095 | pbuf = &adapter->cmd_buf_arr[producer]; |
1096 | pbuf->skb = NULL; | |
3d396eb1 AK |
1097 | /* copy the next 64 bytes - should be enough except |
1098 | * for pathological case | |
1099 | */ | |
d626f62b ACM |
1100 | skb_copy_from_linear_data_offset(skb, first_hdr_len, |
1101 | hwdesc, | |
1102 | (hdr_len - | |
1103 | first_hdr_len)); | |
ba53e6b4 | 1104 | producer = get_next_index(producer, num_txd); |
3d396eb1 AK |
1105 | } |
1106 | } | |
6c80b18d | 1107 | |
ba53e6b4 | 1108 | adapter->cmd_producer = producer; |
5dc16268 | 1109 | adapter->stats.txbytes += skb->len; |
6c80b18d | 1110 | |
ba53e6b4 | 1111 | netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); |
3d396eb1 | 1112 | |
ba53e6b4 | 1113 | adapter->stats.xmitcalled++; |
3d396eb1 AK |
1114 | netdev->trans_start = jiffies; |
1115 | ||
3d396eb1 AK |
1116 | return NETDEV_TX_OK; |
1117 | } | |
1118 | ||
1119 | static void netxen_watchdog(unsigned long v) | |
1120 | { | |
1121 | struct netxen_adapter *adapter = (struct netxen_adapter *)v; | |
ed25ffa1 AK |
1122 | |
1123 | SCHEDULE_WORK(&adapter->watchdog_task); | |
3d396eb1 AK |
1124 | } |
1125 | ||
1126 | static void netxen_tx_timeout(struct net_device *netdev) | |
1127 | { | |
3176ff3e MT |
1128 | struct netxen_adapter *adapter = (struct netxen_adapter *) |
1129 | netdev_priv(netdev); | |
1130 | SCHEDULE_WORK(&adapter->tx_timeout_task); | |
3d396eb1 AK |
1131 | } |
1132 | ||
6d5aefb8 | 1133 | static void netxen_tx_timeout_task(struct work_struct *work) |
3d396eb1 | 1134 | { |
4790654c | 1135 | struct netxen_adapter *adapter = |
3176ff3e | 1136 | container_of(work, struct netxen_adapter, tx_timeout_task); |
3d396eb1 AK |
1137 | |
1138 | printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", | |
6c80b18d | 1139 | netxen_nic_driver_name, adapter->netdev->name); |
3d396eb1 | 1140 | |
ba53e6b4 DP |
1141 | netxen_nic_disable_int(adapter); |
1142 | napi_disable(&adapter->napi); | |
1143 | ||
6c80b18d | 1144 | adapter->netdev->trans_start = jiffies; |
ba53e6b4 DP |
1145 | |
1146 | napi_enable(&adapter->napi); | |
1147 | netxen_nic_enable_int(adapter); | |
6c80b18d | 1148 | netif_wake_queue(adapter->netdev); |
3d396eb1 AK |
1149 | } |
1150 | ||
05aaa02d DP |
1151 | static inline void |
1152 | netxen_handle_int(struct netxen_adapter *adapter) | |
3d396eb1 | 1153 | { |
2d1a3bbd | 1154 | netxen_nic_disable_int(adapter); |
05aaa02d | 1155 | napi_schedule(&adapter->napi); |
3d396eb1 AK |
1156 | } |
1157 | ||
1494a814 | 1158 | irqreturn_t netxen_intr(int irq, void *data) |
3d396eb1 | 1159 | { |
1daec86a | 1160 | struct netxen_adapter *adapter = data; |
e01872af | 1161 | u32 our_int = 0; |
3d396eb1 | 1162 | |
05aaa02d DP |
1163 | our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); |
1164 | /* not our interrupt */ | |
1165 | if ((our_int & (0x80 << adapter->portnum)) == 0) | |
1166 | return IRQ_NONE; | |
e01872af | 1167 | |
1168 | if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { | |
1169 | /* claim interrupt */ | |
05aaa02d | 1170 | writel(our_int & ~((u32)(0x80 << adapter->portnum)), |
e01872af | 1171 | NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); |
e01872af | 1172 | } |
1173 | ||
05aaa02d | 1174 | netxen_handle_int(adapter); |
3d396eb1 AK |
1175 | |
1176 | return IRQ_HANDLED; | |
1177 | } | |
1178 | ||
05aaa02d DP |
1179 | irqreturn_t netxen_msi_intr(int irq, void *data) |
1180 | { | |
1181 | struct netxen_adapter *adapter = data; | |
1182 | ||
1183 | netxen_handle_int(adapter); | |
1184 | return IRQ_HANDLED; | |
1185 | } | |
1186 | ||
bea3348e | 1187 | static int netxen_nic_poll(struct napi_struct *napi, int budget) |
3d396eb1 | 1188 | { |
bea3348e | 1189 | struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); |
05aaa02d | 1190 | int tx_complete; |
3d396eb1 | 1191 | int ctx; |
bea3348e | 1192 | int work_done; |
3d396eb1 | 1193 | |
05aaa02d | 1194 | tx_complete = netxen_process_cmd_ring(adapter); |
3d396eb1 | 1195 | |
80922fbc | 1196 | work_done = 0; |
3d396eb1 AK |
1197 | for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { |
1198 | /* | |
1199 | * Fairness issue. This will give undue weight to the | |
1200 | * receive context 0. | |
1201 | */ | |
1202 | ||
1203 | /* | |
1204 | * To avoid starvation, we give each of our receivers, | |
1205 | * a fraction of the quota. Sometimes, it might happen that we | |
1206 | * have enough quota to process every packet, but since all the | |
1207 | * packets are on one context, it gets only half of the quota, | |
1208 | * and ends up not processing it. | |
1209 | */ | |
bea3348e SH |
1210 | work_done += netxen_process_rcv_ring(adapter, ctx, |
1211 | budget / MAX_RCV_CTX); | |
3d396eb1 AK |
1212 | } |
1213 | ||
05aaa02d DP |
1214 | if ((work_done < budget) && tx_complete) { |
1215 | netif_rx_complete(adapter->netdev, &adapter->napi); | |
3d396eb1 AK |
1216 | netxen_nic_enable_int(adapter); |
1217 | } | |
1218 | ||
bea3348e | 1219 | return work_done; |
3d396eb1 AK |
1220 | } |
1221 | ||
1222 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1223 | static void netxen_nic_poll_controller(struct net_device *netdev) | |
1224 | { | |
3176ff3e | 1225 | struct netxen_adapter *adapter = netdev_priv(netdev); |
3d396eb1 | 1226 | disable_irq(adapter->irq); |
1494a814 | 1227 | netxen_intr(adapter->irq, adapter); |
3d396eb1 AK |
1228 | enable_irq(adapter->irq); |
1229 | } | |
1230 | #endif | |
3d396eb1 AK |
1231 | |
1232 | static struct pci_driver netxen_driver = { | |
1233 | .name = netxen_nic_driver_name, | |
1234 | .id_table = netxen_pci_tbl, | |
1235 | .probe = netxen_nic_probe, | |
1236 | .remove = __devexit_p(netxen_nic_remove) | |
1237 | }; | |
1238 | ||
1239 | /* Driver Registration on NetXen card */ | |
1240 | ||
1241 | static int __init netxen_init_module(void) | |
1242 | { | |
79ea13ce | 1243 | if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) |
ed25ffa1 AK |
1244 | return -ENOMEM; |
1245 | ||
184231bd | 1246 | return pci_register_driver(&netxen_driver); |
3d396eb1 AK |
1247 | } |
1248 | ||
1249 | module_init(netxen_init_module); | |
1250 | ||
1251 | static void __exit netxen_exit_module(void) | |
1252 | { | |
1253 | /* | |
1254 | * Wait for some time to allow the dma to drain, if any. | |
1255 | */ | |
96acb6eb | 1256 | msleep(100); |
3d396eb1 | 1257 | pci_unregister_driver(&netxen_driver); |
9de06610 | 1258 | destroy_workqueue(netxen_workq); |
3d396eb1 AK |
1259 | } |
1260 | ||
1261 | module_exit(netxen_exit_module); |