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c4e84bde RM |
1 | /* |
2 | * QLogic qlge NIC HBA Driver | |
3 | * Copyright (c) 2003-2008 QLogic Corporation | |
4 | * See LICENSE.qlge for copyright and licensing details. | |
5 | * Author: Linux qlge network device driver by | |
6 | * Ron Mercer <ron.mercer@qlogic.com> | |
7 | */ | |
8 | #include <linux/kernel.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/types.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/list.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/dma-mapping.h> | |
15 | #include <linux/pagemap.h> | |
16 | #include <linux/sched.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/dmapool.h> | |
19 | #include <linux/mempool.h> | |
20 | #include <linux/spinlock.h> | |
21 | #include <linux/kthread.h> | |
22 | #include <linux/interrupt.h> | |
23 | #include <linux/errno.h> | |
24 | #include <linux/ioport.h> | |
25 | #include <linux/in.h> | |
26 | #include <linux/ip.h> | |
27 | #include <linux/ipv6.h> | |
28 | #include <net/ipv6.h> | |
29 | #include <linux/tcp.h> | |
30 | #include <linux/udp.h> | |
31 | #include <linux/if_arp.h> | |
32 | #include <linux/if_ether.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/ethtool.h> | |
36 | #include <linux/skbuff.h> | |
c4e84bde | 37 | #include <linux/if_vlan.h> |
c4e84bde RM |
38 | #include <linux/delay.h> |
39 | #include <linux/mm.h> | |
40 | #include <linux/vmalloc.h> | |
b7c6bfb7 | 41 | #include <net/ip6_checksum.h> |
c4e84bde RM |
42 | |
43 | #include "qlge.h" | |
44 | ||
45 | char qlge_driver_name[] = DRV_NAME; | |
46 | const char qlge_driver_version[] = DRV_VERSION; | |
47 | ||
48 | MODULE_AUTHOR("Ron Mercer <ron.mercer@qlogic.com>"); | |
49 | MODULE_DESCRIPTION(DRV_STRING " "); | |
50 | MODULE_LICENSE("GPL"); | |
51 | MODULE_VERSION(DRV_VERSION); | |
52 | ||
53 | static const u32 default_msg = | |
54 | NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | | |
55 | /* NETIF_MSG_TIMER | */ | |
56 | NETIF_MSG_IFDOWN | | |
57 | NETIF_MSG_IFUP | | |
58 | NETIF_MSG_RX_ERR | | |
59 | NETIF_MSG_TX_ERR | | |
4974097a RM |
60 | /* NETIF_MSG_TX_QUEUED | */ |
61 | /* NETIF_MSG_INTR | NETIF_MSG_TX_DONE | NETIF_MSG_RX_STATUS | */ | |
c4e84bde RM |
62 | /* NETIF_MSG_PKTDATA | */ |
63 | NETIF_MSG_HW | NETIF_MSG_WOL | 0; | |
64 | ||
65 | static int debug = 0x00007fff; /* defaults above */ | |
66 | module_param(debug, int, 0); | |
67 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
68 | ||
69 | #define MSIX_IRQ 0 | |
70 | #define MSI_IRQ 1 | |
71 | #define LEG_IRQ 2 | |
a5a62a1c RM |
72 | static int qlge_irq_type = MSIX_IRQ; |
73 | module_param(qlge_irq_type, int, MSIX_IRQ); | |
74 | MODULE_PARM_DESC(qlge_irq_type, "0 = MSI-X, 1 = MSI, 2 = Legacy."); | |
c4e84bde | 75 | |
8aae2600 RM |
76 | static int qlge_mpi_coredump; |
77 | module_param(qlge_mpi_coredump, int, 0); | |
78 | MODULE_PARM_DESC(qlge_mpi_coredump, | |
79 | "Option to enable MPI firmware dump. " | |
d5c1da56 RM |
80 | "Default is OFF - Do Not allocate memory. "); |
81 | ||
82 | static int qlge_force_coredump; | |
83 | module_param(qlge_force_coredump, int, 0); | |
84 | MODULE_PARM_DESC(qlge_force_coredump, | |
85 | "Option to allow force of firmware core dump. " | |
86 | "Default is OFF - Do not allow."); | |
8aae2600 | 87 | |
a3aa1884 | 88 | static DEFINE_PCI_DEVICE_TABLE(qlge_pci_tbl) = { |
b0c2aadf | 89 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QLGE_DEVICE_ID_8012)}, |
cdca8d02 | 90 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QLGE_DEVICE_ID_8000)}, |
c4e84bde RM |
91 | /* required last entry */ |
92 | {0,} | |
93 | }; | |
94 | ||
95 | MODULE_DEVICE_TABLE(pci, qlge_pci_tbl); | |
96 | ||
97 | /* This hardware semaphore causes exclusive access to | |
98 | * resources shared between the NIC driver, MPI firmware, | |
99 | * FCOE firmware and the FC driver. | |
100 | */ | |
101 | static int ql_sem_trylock(struct ql_adapter *qdev, u32 sem_mask) | |
102 | { | |
103 | u32 sem_bits = 0; | |
104 | ||
105 | switch (sem_mask) { | |
106 | case SEM_XGMAC0_MASK: | |
107 | sem_bits = SEM_SET << SEM_XGMAC0_SHIFT; | |
108 | break; | |
109 | case SEM_XGMAC1_MASK: | |
110 | sem_bits = SEM_SET << SEM_XGMAC1_SHIFT; | |
111 | break; | |
112 | case SEM_ICB_MASK: | |
113 | sem_bits = SEM_SET << SEM_ICB_SHIFT; | |
114 | break; | |
115 | case SEM_MAC_ADDR_MASK: | |
116 | sem_bits = SEM_SET << SEM_MAC_ADDR_SHIFT; | |
117 | break; | |
118 | case SEM_FLASH_MASK: | |
119 | sem_bits = SEM_SET << SEM_FLASH_SHIFT; | |
120 | break; | |
121 | case SEM_PROBE_MASK: | |
122 | sem_bits = SEM_SET << SEM_PROBE_SHIFT; | |
123 | break; | |
124 | case SEM_RT_IDX_MASK: | |
125 | sem_bits = SEM_SET << SEM_RT_IDX_SHIFT; | |
126 | break; | |
127 | case SEM_PROC_REG_MASK: | |
128 | sem_bits = SEM_SET << SEM_PROC_REG_SHIFT; | |
129 | break; | |
130 | default: | |
ae9540f7 | 131 | netif_alert(qdev, probe, qdev->ndev, "bad Semaphore mask!.\n"); |
c4e84bde RM |
132 | return -EINVAL; |
133 | } | |
134 | ||
135 | ql_write32(qdev, SEM, sem_bits | sem_mask); | |
136 | return !(ql_read32(qdev, SEM) & sem_bits); | |
137 | } | |
138 | ||
139 | int ql_sem_spinlock(struct ql_adapter *qdev, u32 sem_mask) | |
140 | { | |
0857e9d7 | 141 | unsigned int wait_count = 30; |
c4e84bde RM |
142 | do { |
143 | if (!ql_sem_trylock(qdev, sem_mask)) | |
144 | return 0; | |
0857e9d7 RM |
145 | udelay(100); |
146 | } while (--wait_count); | |
c4e84bde RM |
147 | return -ETIMEDOUT; |
148 | } | |
149 | ||
150 | void ql_sem_unlock(struct ql_adapter *qdev, u32 sem_mask) | |
151 | { | |
152 | ql_write32(qdev, SEM, sem_mask); | |
153 | ql_read32(qdev, SEM); /* flush */ | |
154 | } | |
155 | ||
156 | /* This function waits for a specific bit to come ready | |
157 | * in a given register. It is used mostly by the initialize | |
158 | * process, but is also used in kernel thread API such as | |
159 | * netdev->set_multi, netdev->set_mac_address, netdev->vlan_rx_add_vid. | |
160 | */ | |
161 | int ql_wait_reg_rdy(struct ql_adapter *qdev, u32 reg, u32 bit, u32 err_bit) | |
162 | { | |
163 | u32 temp; | |
164 | int count = UDELAY_COUNT; | |
165 | ||
166 | while (count) { | |
167 | temp = ql_read32(qdev, reg); | |
168 | ||
169 | /* check for errors */ | |
170 | if (temp & err_bit) { | |
ae9540f7 JP |
171 | netif_alert(qdev, probe, qdev->ndev, |
172 | "register 0x%.08x access error, value = 0x%.08x!.\n", | |
173 | reg, temp); | |
c4e84bde RM |
174 | return -EIO; |
175 | } else if (temp & bit) | |
176 | return 0; | |
177 | udelay(UDELAY_DELAY); | |
178 | count--; | |
179 | } | |
ae9540f7 JP |
180 | netif_alert(qdev, probe, qdev->ndev, |
181 | "Timed out waiting for reg %x to come ready.\n", reg); | |
c4e84bde RM |
182 | return -ETIMEDOUT; |
183 | } | |
184 | ||
185 | /* The CFG register is used to download TX and RX control blocks | |
186 | * to the chip. This function waits for an operation to complete. | |
187 | */ | |
188 | static int ql_wait_cfg(struct ql_adapter *qdev, u32 bit) | |
189 | { | |
190 | int count = UDELAY_COUNT; | |
191 | u32 temp; | |
192 | ||
193 | while (count) { | |
194 | temp = ql_read32(qdev, CFG); | |
195 | if (temp & CFG_LE) | |
196 | return -EIO; | |
197 | if (!(temp & bit)) | |
198 | return 0; | |
199 | udelay(UDELAY_DELAY); | |
200 | count--; | |
201 | } | |
202 | return -ETIMEDOUT; | |
203 | } | |
204 | ||
205 | ||
206 | /* Used to issue init control blocks to hw. Maps control block, | |
207 | * sets address, triggers download, waits for completion. | |
208 | */ | |
209 | int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit, | |
210 | u16 q_id) | |
211 | { | |
212 | u64 map; | |
213 | int status = 0; | |
214 | int direction; | |
215 | u32 mask; | |
216 | u32 value; | |
217 | ||
218 | direction = | |
219 | (bit & (CFG_LRQ | CFG_LR | CFG_LCQ)) ? PCI_DMA_TODEVICE : | |
220 | PCI_DMA_FROMDEVICE; | |
221 | ||
222 | map = pci_map_single(qdev->pdev, ptr, size, direction); | |
223 | if (pci_dma_mapping_error(qdev->pdev, map)) { | |
ae9540f7 | 224 | netif_err(qdev, ifup, qdev->ndev, "Couldn't map DMA area.\n"); |
c4e84bde RM |
225 | return -ENOMEM; |
226 | } | |
227 | ||
4322c5be RM |
228 | status = ql_sem_spinlock(qdev, SEM_ICB_MASK); |
229 | if (status) | |
230 | return status; | |
231 | ||
c4e84bde RM |
232 | status = ql_wait_cfg(qdev, bit); |
233 | if (status) { | |
ae9540f7 JP |
234 | netif_err(qdev, ifup, qdev->ndev, |
235 | "Timed out waiting for CFG to come ready.\n"); | |
c4e84bde RM |
236 | goto exit; |
237 | } | |
238 | ||
c4e84bde RM |
239 | ql_write32(qdev, ICB_L, (u32) map); |
240 | ql_write32(qdev, ICB_H, (u32) (map >> 32)); | |
c4e84bde RM |
241 | |
242 | mask = CFG_Q_MASK | (bit << 16); | |
243 | value = bit | (q_id << CFG_Q_SHIFT); | |
244 | ql_write32(qdev, CFG, (mask | value)); | |
245 | ||
246 | /* | |
247 | * Wait for the bit to clear after signaling hw. | |
248 | */ | |
249 | status = ql_wait_cfg(qdev, bit); | |
250 | exit: | |
4322c5be | 251 | ql_sem_unlock(qdev, SEM_ICB_MASK); /* does flush too */ |
c4e84bde RM |
252 | pci_unmap_single(qdev->pdev, map, size, direction); |
253 | return status; | |
254 | } | |
255 | ||
256 | /* Get a specific MAC address from the CAM. Used for debug and reg dump. */ | |
257 | int ql_get_mac_addr_reg(struct ql_adapter *qdev, u32 type, u16 index, | |
258 | u32 *value) | |
259 | { | |
260 | u32 offset = 0; | |
261 | int status; | |
262 | ||
c4e84bde RM |
263 | switch (type) { |
264 | case MAC_ADDR_TYPE_MULTI_MAC: | |
265 | case MAC_ADDR_TYPE_CAM_MAC: | |
266 | { | |
267 | status = | |
268 | ql_wait_reg_rdy(qdev, | |
939678f8 | 269 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
270 | if (status) |
271 | goto exit; | |
272 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
273 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
274 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
275 | status = | |
276 | ql_wait_reg_rdy(qdev, | |
939678f8 | 277 | MAC_ADDR_IDX, MAC_ADDR_MR, 0); |
c4e84bde RM |
278 | if (status) |
279 | goto exit; | |
280 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
281 | status = | |
282 | ql_wait_reg_rdy(qdev, | |
939678f8 | 283 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
284 | if (status) |
285 | goto exit; | |
286 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
287 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
288 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
289 | status = | |
290 | ql_wait_reg_rdy(qdev, | |
939678f8 | 291 | MAC_ADDR_IDX, MAC_ADDR_MR, 0); |
c4e84bde RM |
292 | if (status) |
293 | goto exit; | |
294 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
295 | if (type == MAC_ADDR_TYPE_CAM_MAC) { | |
296 | status = | |
297 | ql_wait_reg_rdy(qdev, | |
939678f8 | 298 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
299 | if (status) |
300 | goto exit; | |
301 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
302 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
303 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
304 | status = | |
305 | ql_wait_reg_rdy(qdev, MAC_ADDR_IDX, | |
939678f8 | 306 | MAC_ADDR_MR, 0); |
c4e84bde RM |
307 | if (status) |
308 | goto exit; | |
309 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
310 | } | |
311 | break; | |
312 | } | |
313 | case MAC_ADDR_TYPE_VLAN: | |
314 | case MAC_ADDR_TYPE_MULTI_FLTR: | |
315 | default: | |
ae9540f7 JP |
316 | netif_crit(qdev, ifup, qdev->ndev, |
317 | "Address type %d not yet supported.\n", type); | |
c4e84bde RM |
318 | status = -EPERM; |
319 | } | |
320 | exit: | |
c4e84bde RM |
321 | return status; |
322 | } | |
323 | ||
324 | /* Set up a MAC, multicast or VLAN address for the | |
325 | * inbound frame matching. | |
326 | */ | |
327 | static int ql_set_mac_addr_reg(struct ql_adapter *qdev, u8 *addr, u32 type, | |
328 | u16 index) | |
329 | { | |
330 | u32 offset = 0; | |
331 | int status = 0; | |
332 | ||
c4e84bde RM |
333 | switch (type) { |
334 | case MAC_ADDR_TYPE_MULTI_MAC: | |
76b26694 RM |
335 | { |
336 | u32 upper = (addr[0] << 8) | addr[1]; | |
337 | u32 lower = (addr[2] << 24) | (addr[3] << 16) | | |
338 | (addr[4] << 8) | (addr[5]); | |
339 | ||
340 | status = | |
341 | ql_wait_reg_rdy(qdev, | |
342 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); | |
343 | if (status) | |
344 | goto exit; | |
345 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | | |
346 | (index << MAC_ADDR_IDX_SHIFT) | | |
347 | type | MAC_ADDR_E); | |
348 | ql_write32(qdev, MAC_ADDR_DATA, lower); | |
349 | status = | |
350 | ql_wait_reg_rdy(qdev, | |
351 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); | |
352 | if (status) | |
353 | goto exit; | |
354 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | | |
355 | (index << MAC_ADDR_IDX_SHIFT) | | |
356 | type | MAC_ADDR_E); | |
357 | ||
358 | ql_write32(qdev, MAC_ADDR_DATA, upper); | |
359 | status = | |
360 | ql_wait_reg_rdy(qdev, | |
361 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); | |
362 | if (status) | |
363 | goto exit; | |
364 | break; | |
365 | } | |
c4e84bde RM |
366 | case MAC_ADDR_TYPE_CAM_MAC: |
367 | { | |
368 | u32 cam_output; | |
369 | u32 upper = (addr[0] << 8) | addr[1]; | |
370 | u32 lower = | |
371 | (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | | |
372 | (addr[5]); | |
373 | ||
ae9540f7 JP |
374 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
375 | "Adding %s address %pM at index %d in the CAM.\n", | |
376 | type == MAC_ADDR_TYPE_MULTI_MAC ? | |
377 | "MULTICAST" : "UNICAST", | |
378 | addr, index); | |
c4e84bde RM |
379 | |
380 | status = | |
381 | ql_wait_reg_rdy(qdev, | |
939678f8 | 382 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
383 | if (status) |
384 | goto exit; | |
385 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
386 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
387 | type); /* type */ | |
388 | ql_write32(qdev, MAC_ADDR_DATA, lower); | |
389 | status = | |
390 | ql_wait_reg_rdy(qdev, | |
939678f8 | 391 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
392 | if (status) |
393 | goto exit; | |
394 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
395 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
396 | type); /* type */ | |
397 | ql_write32(qdev, MAC_ADDR_DATA, upper); | |
398 | status = | |
399 | ql_wait_reg_rdy(qdev, | |
939678f8 | 400 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
401 | if (status) |
402 | goto exit; | |
403 | ql_write32(qdev, MAC_ADDR_IDX, (offset) | /* offset */ | |
404 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
405 | type); /* type */ | |
406 | /* This field should also include the queue id | |
407 | and possibly the function id. Right now we hardcode | |
408 | the route field to NIC core. | |
409 | */ | |
76b26694 RM |
410 | cam_output = (CAM_OUT_ROUTE_NIC | |
411 | (qdev-> | |
412 | func << CAM_OUT_FUNC_SHIFT) | | |
413 | (0 << CAM_OUT_CQ_ID_SHIFT)); | |
414 | if (qdev->vlgrp) | |
415 | cam_output |= CAM_OUT_RV; | |
416 | /* route to NIC core */ | |
417 | ql_write32(qdev, MAC_ADDR_DATA, cam_output); | |
c4e84bde RM |
418 | break; |
419 | } | |
420 | case MAC_ADDR_TYPE_VLAN: | |
421 | { | |
422 | u32 enable_bit = *((u32 *) &addr[0]); | |
423 | /* For VLAN, the addr actually holds a bit that | |
424 | * either enables or disables the vlan id we are | |
425 | * addressing. It's either MAC_ADDR_E on or off. | |
426 | * That's bit-27 we're talking about. | |
427 | */ | |
ae9540f7 JP |
428 | netif_info(qdev, ifup, qdev->ndev, |
429 | "%s VLAN ID %d %s the CAM.\n", | |
430 | enable_bit ? "Adding" : "Removing", | |
431 | index, | |
432 | enable_bit ? "to" : "from"); | |
c4e84bde RM |
433 | |
434 | status = | |
435 | ql_wait_reg_rdy(qdev, | |
939678f8 | 436 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
437 | if (status) |
438 | goto exit; | |
439 | ql_write32(qdev, MAC_ADDR_IDX, offset | /* offset */ | |
440 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
441 | type | /* type */ | |
442 | enable_bit); /* enable/disable */ | |
443 | break; | |
444 | } | |
445 | case MAC_ADDR_TYPE_MULTI_FLTR: | |
446 | default: | |
ae9540f7 JP |
447 | netif_crit(qdev, ifup, qdev->ndev, |
448 | "Address type %d not yet supported.\n", type); | |
c4e84bde RM |
449 | status = -EPERM; |
450 | } | |
451 | exit: | |
c4e84bde RM |
452 | return status; |
453 | } | |
454 | ||
7fab3bfe RM |
455 | /* Set or clear MAC address in hardware. We sometimes |
456 | * have to clear it to prevent wrong frame routing | |
457 | * especially in a bonding environment. | |
458 | */ | |
459 | static int ql_set_mac_addr(struct ql_adapter *qdev, int set) | |
460 | { | |
461 | int status; | |
462 | char zero_mac_addr[ETH_ALEN]; | |
463 | char *addr; | |
464 | ||
465 | if (set) { | |
801e9096 | 466 | addr = &qdev->current_mac_addr[0]; |
ae9540f7 JP |
467 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
468 | "Set Mac addr %pM\n", addr); | |
7fab3bfe RM |
469 | } else { |
470 | memset(zero_mac_addr, 0, ETH_ALEN); | |
471 | addr = &zero_mac_addr[0]; | |
ae9540f7 JP |
472 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
473 | "Clearing MAC address\n"); | |
7fab3bfe RM |
474 | } |
475 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); | |
476 | if (status) | |
477 | return status; | |
478 | status = ql_set_mac_addr_reg(qdev, (u8 *) addr, | |
479 | MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ); | |
480 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); | |
481 | if (status) | |
ae9540f7 JP |
482 | netif_err(qdev, ifup, qdev->ndev, |
483 | "Failed to init mac address.\n"); | |
7fab3bfe RM |
484 | return status; |
485 | } | |
486 | ||
6a473308 RM |
487 | void ql_link_on(struct ql_adapter *qdev) |
488 | { | |
ae9540f7 | 489 | netif_err(qdev, link, qdev->ndev, "Link is up.\n"); |
6a473308 RM |
490 | netif_carrier_on(qdev->ndev); |
491 | ql_set_mac_addr(qdev, 1); | |
492 | } | |
493 | ||
494 | void ql_link_off(struct ql_adapter *qdev) | |
495 | { | |
ae9540f7 | 496 | netif_err(qdev, link, qdev->ndev, "Link is down.\n"); |
6a473308 RM |
497 | netif_carrier_off(qdev->ndev); |
498 | ql_set_mac_addr(qdev, 0); | |
499 | } | |
500 | ||
c4e84bde RM |
501 | /* Get a specific frame routing value from the CAM. |
502 | * Used for debug and reg dump. | |
503 | */ | |
504 | int ql_get_routing_reg(struct ql_adapter *qdev, u32 index, u32 *value) | |
505 | { | |
506 | int status = 0; | |
507 | ||
939678f8 | 508 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MW, 0); |
c4e84bde RM |
509 | if (status) |
510 | goto exit; | |
511 | ||
512 | ql_write32(qdev, RT_IDX, | |
513 | RT_IDX_TYPE_NICQ | RT_IDX_RS | (index << RT_IDX_IDX_SHIFT)); | |
939678f8 | 514 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MR, 0); |
c4e84bde RM |
515 | if (status) |
516 | goto exit; | |
517 | *value = ql_read32(qdev, RT_DATA); | |
518 | exit: | |
c4e84bde RM |
519 | return status; |
520 | } | |
521 | ||
522 | /* The NIC function for this chip has 16 routing indexes. Each one can be used | |
523 | * to route different frame types to various inbound queues. We send broadcast/ | |
524 | * multicast/error frames to the default queue for slow handling, | |
525 | * and CAM hit/RSS frames to the fast handling queues. | |
526 | */ | |
527 | static int ql_set_routing_reg(struct ql_adapter *qdev, u32 index, u32 mask, | |
528 | int enable) | |
529 | { | |
8587ea35 | 530 | int status = -EINVAL; /* Return error if no mask match. */ |
c4e84bde RM |
531 | u32 value = 0; |
532 | ||
ae9540f7 JP |
533 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
534 | "%s %s mask %s the routing reg.\n", | |
535 | enable ? "Adding" : "Removing", | |
536 | index == RT_IDX_ALL_ERR_SLOT ? "MAC ERROR/ALL ERROR" : | |
537 | index == RT_IDX_IP_CSUM_ERR_SLOT ? "IP CSUM ERROR" : | |
538 | index == RT_IDX_TCP_UDP_CSUM_ERR_SLOT ? "TCP/UDP CSUM ERROR" : | |
539 | index == RT_IDX_BCAST_SLOT ? "BROADCAST" : | |
540 | index == RT_IDX_MCAST_MATCH_SLOT ? "MULTICAST MATCH" : | |
541 | index == RT_IDX_ALLMULTI_SLOT ? "ALL MULTICAST MATCH" : | |
542 | index == RT_IDX_UNUSED6_SLOT ? "UNUSED6" : | |
543 | index == RT_IDX_UNUSED7_SLOT ? "UNUSED7" : | |
544 | index == RT_IDX_RSS_MATCH_SLOT ? "RSS ALL/IPV4 MATCH" : | |
545 | index == RT_IDX_RSS_IPV6_SLOT ? "RSS IPV6" : | |
546 | index == RT_IDX_RSS_TCP4_SLOT ? "RSS TCP4" : | |
547 | index == RT_IDX_RSS_TCP6_SLOT ? "RSS TCP6" : | |
548 | index == RT_IDX_CAM_HIT_SLOT ? "CAM HIT" : | |
549 | index == RT_IDX_UNUSED013 ? "UNUSED13" : | |
550 | index == RT_IDX_UNUSED014 ? "UNUSED14" : | |
551 | index == RT_IDX_PROMISCUOUS_SLOT ? "PROMISCUOUS" : | |
552 | "(Bad index != RT_IDX)", | |
553 | enable ? "to" : "from"); | |
c4e84bde RM |
554 | |
555 | switch (mask) { | |
556 | case RT_IDX_CAM_HIT: | |
557 | { | |
558 | value = RT_IDX_DST_CAM_Q | /* dest */ | |
559 | RT_IDX_TYPE_NICQ | /* type */ | |
560 | (RT_IDX_CAM_HIT_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
561 | break; | |
562 | } | |
563 | case RT_IDX_VALID: /* Promiscuous Mode frames. */ | |
564 | { | |
565 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
566 | RT_IDX_TYPE_NICQ | /* type */ | |
567 | (RT_IDX_PROMISCUOUS_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
568 | break; | |
569 | } | |
570 | case RT_IDX_ERR: /* Pass up MAC,IP,TCP/UDP error frames. */ | |
571 | { | |
572 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
573 | RT_IDX_TYPE_NICQ | /* type */ | |
574 | (RT_IDX_ALL_ERR_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
575 | break; | |
576 | } | |
577 | case RT_IDX_BCAST: /* Pass up Broadcast frames to default Q. */ | |
578 | { | |
579 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
580 | RT_IDX_TYPE_NICQ | /* type */ | |
581 | (RT_IDX_BCAST_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
582 | break; | |
583 | } | |
584 | case RT_IDX_MCAST: /* Pass up All Multicast frames. */ | |
585 | { | |
e163d7f2 | 586 | value = RT_IDX_DST_DFLT_Q | /* dest */ |
c4e84bde RM |
587 | RT_IDX_TYPE_NICQ | /* type */ |
588 | (RT_IDX_ALLMULTI_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
589 | break; | |
590 | } | |
591 | case RT_IDX_MCAST_MATCH: /* Pass up matched Multicast frames. */ | |
592 | { | |
e163d7f2 | 593 | value = RT_IDX_DST_DFLT_Q | /* dest */ |
c4e84bde RM |
594 | RT_IDX_TYPE_NICQ | /* type */ |
595 | (RT_IDX_MCAST_MATCH_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
596 | break; | |
597 | } | |
598 | case RT_IDX_RSS_MATCH: /* Pass up matched RSS frames. */ | |
599 | { | |
600 | value = RT_IDX_DST_RSS | /* dest */ | |
601 | RT_IDX_TYPE_NICQ | /* type */ | |
602 | (RT_IDX_RSS_MATCH_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
603 | break; | |
604 | } | |
605 | case 0: /* Clear the E-bit on an entry. */ | |
606 | { | |
607 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
608 | RT_IDX_TYPE_NICQ | /* type */ | |
609 | (index << RT_IDX_IDX_SHIFT);/* index */ | |
610 | break; | |
611 | } | |
612 | default: | |
ae9540f7 JP |
613 | netif_err(qdev, ifup, qdev->ndev, |
614 | "Mask type %d not yet supported.\n", mask); | |
c4e84bde RM |
615 | status = -EPERM; |
616 | goto exit; | |
617 | } | |
618 | ||
619 | if (value) { | |
620 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MW, 0); | |
621 | if (status) | |
622 | goto exit; | |
623 | value |= (enable ? RT_IDX_E : 0); | |
624 | ql_write32(qdev, RT_IDX, value); | |
625 | ql_write32(qdev, RT_DATA, enable ? mask : 0); | |
626 | } | |
627 | exit: | |
c4e84bde RM |
628 | return status; |
629 | } | |
630 | ||
631 | static void ql_enable_interrupts(struct ql_adapter *qdev) | |
632 | { | |
633 | ql_write32(qdev, INTR_EN, (INTR_EN_EI << 16) | INTR_EN_EI); | |
634 | } | |
635 | ||
636 | static void ql_disable_interrupts(struct ql_adapter *qdev) | |
637 | { | |
638 | ql_write32(qdev, INTR_EN, (INTR_EN_EI << 16)); | |
639 | } | |
640 | ||
641 | /* If we're running with multiple MSI-X vectors then we enable on the fly. | |
642 | * Otherwise, we may have multiple outstanding workers and don't want to | |
643 | * enable until the last one finishes. In this case, the irq_cnt gets | |
644 | * incremented everytime we queue a worker and decremented everytime | |
645 | * a worker finishes. Once it hits zero we enable the interrupt. | |
646 | */ | |
bb0d215c | 647 | u32 ql_enable_completion_interrupt(struct ql_adapter *qdev, u32 intr) |
c4e84bde | 648 | { |
bb0d215c RM |
649 | u32 var = 0; |
650 | unsigned long hw_flags = 0; | |
651 | struct intr_context *ctx = qdev->intr_context + intr; | |
652 | ||
653 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags) && intr)) { | |
654 | /* Always enable if we're MSIX multi interrupts and | |
655 | * it's not the default (zeroeth) interrupt. | |
656 | */ | |
c4e84bde | 657 | ql_write32(qdev, INTR_EN, |
bb0d215c RM |
658 | ctx->intr_en_mask); |
659 | var = ql_read32(qdev, STS); | |
660 | return var; | |
c4e84bde | 661 | } |
bb0d215c RM |
662 | |
663 | spin_lock_irqsave(&qdev->hw_lock, hw_flags); | |
664 | if (atomic_dec_and_test(&ctx->irq_cnt)) { | |
665 | ql_write32(qdev, INTR_EN, | |
666 | ctx->intr_en_mask); | |
667 | var = ql_read32(qdev, STS); | |
668 | } | |
669 | spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); | |
670 | return var; | |
c4e84bde RM |
671 | } |
672 | ||
673 | static u32 ql_disable_completion_interrupt(struct ql_adapter *qdev, u32 intr) | |
674 | { | |
675 | u32 var = 0; | |
bb0d215c | 676 | struct intr_context *ctx; |
c4e84bde | 677 | |
bb0d215c RM |
678 | /* HW disables for us if we're MSIX multi interrupts and |
679 | * it's not the default (zeroeth) interrupt. | |
680 | */ | |
681 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags) && intr)) | |
682 | return 0; | |
683 | ||
684 | ctx = qdev->intr_context + intr; | |
08b1bc8f | 685 | spin_lock(&qdev->hw_lock); |
bb0d215c | 686 | if (!atomic_read(&ctx->irq_cnt)) { |
c4e84bde | 687 | ql_write32(qdev, INTR_EN, |
bb0d215c | 688 | ctx->intr_dis_mask); |
c4e84bde RM |
689 | var = ql_read32(qdev, STS); |
690 | } | |
bb0d215c | 691 | atomic_inc(&ctx->irq_cnt); |
08b1bc8f | 692 | spin_unlock(&qdev->hw_lock); |
c4e84bde RM |
693 | return var; |
694 | } | |
695 | ||
696 | static void ql_enable_all_completion_interrupts(struct ql_adapter *qdev) | |
697 | { | |
698 | int i; | |
699 | for (i = 0; i < qdev->intr_count; i++) { | |
700 | /* The enable call does a atomic_dec_and_test | |
701 | * and enables only if the result is zero. | |
702 | * So we precharge it here. | |
703 | */ | |
bb0d215c RM |
704 | if (unlikely(!test_bit(QL_MSIX_ENABLED, &qdev->flags) || |
705 | i == 0)) | |
706 | atomic_set(&qdev->intr_context[i].irq_cnt, 1); | |
c4e84bde RM |
707 | ql_enable_completion_interrupt(qdev, i); |
708 | } | |
709 | ||
710 | } | |
711 | ||
b0c2aadf RM |
712 | static int ql_validate_flash(struct ql_adapter *qdev, u32 size, const char *str) |
713 | { | |
714 | int status, i; | |
715 | u16 csum = 0; | |
716 | __le16 *flash = (__le16 *)&qdev->flash; | |
717 | ||
718 | status = strncmp((char *)&qdev->flash, str, 4); | |
719 | if (status) { | |
ae9540f7 | 720 | netif_err(qdev, ifup, qdev->ndev, "Invalid flash signature.\n"); |
b0c2aadf RM |
721 | return status; |
722 | } | |
723 | ||
724 | for (i = 0; i < size; i++) | |
725 | csum += le16_to_cpu(*flash++); | |
726 | ||
727 | if (csum) | |
ae9540f7 JP |
728 | netif_err(qdev, ifup, qdev->ndev, |
729 | "Invalid flash checksum, csum = 0x%.04x.\n", csum); | |
b0c2aadf RM |
730 | |
731 | return csum; | |
732 | } | |
733 | ||
26351479 | 734 | static int ql_read_flash_word(struct ql_adapter *qdev, int offset, __le32 *data) |
c4e84bde RM |
735 | { |
736 | int status = 0; | |
737 | /* wait for reg to come ready */ | |
738 | status = ql_wait_reg_rdy(qdev, | |
739 | FLASH_ADDR, FLASH_ADDR_RDY, FLASH_ADDR_ERR); | |
740 | if (status) | |
741 | goto exit; | |
742 | /* set up for reg read */ | |
743 | ql_write32(qdev, FLASH_ADDR, FLASH_ADDR_R | offset); | |
744 | /* wait for reg to come ready */ | |
745 | status = ql_wait_reg_rdy(qdev, | |
746 | FLASH_ADDR, FLASH_ADDR_RDY, FLASH_ADDR_ERR); | |
747 | if (status) | |
748 | goto exit; | |
26351479 RM |
749 | /* This data is stored on flash as an array of |
750 | * __le32. Since ql_read32() returns cpu endian | |
751 | * we need to swap it back. | |
752 | */ | |
753 | *data = cpu_to_le32(ql_read32(qdev, FLASH_DATA)); | |
c4e84bde RM |
754 | exit: |
755 | return status; | |
756 | } | |
757 | ||
cdca8d02 RM |
758 | static int ql_get_8000_flash_params(struct ql_adapter *qdev) |
759 | { | |
760 | u32 i, size; | |
761 | int status; | |
762 | __le32 *p = (__le32 *)&qdev->flash; | |
763 | u32 offset; | |
542512e4 | 764 | u8 mac_addr[6]; |
cdca8d02 RM |
765 | |
766 | /* Get flash offset for function and adjust | |
767 | * for dword access. | |
768 | */ | |
e4552f51 | 769 | if (!qdev->port) |
cdca8d02 RM |
770 | offset = FUNC0_FLASH_OFFSET / sizeof(u32); |
771 | else | |
772 | offset = FUNC1_FLASH_OFFSET / sizeof(u32); | |
773 | ||
774 | if (ql_sem_spinlock(qdev, SEM_FLASH_MASK)) | |
775 | return -ETIMEDOUT; | |
776 | ||
777 | size = sizeof(struct flash_params_8000) / sizeof(u32); | |
778 | for (i = 0; i < size; i++, p++) { | |
779 | status = ql_read_flash_word(qdev, i+offset, p); | |
780 | if (status) { | |
ae9540f7 JP |
781 | netif_err(qdev, ifup, qdev->ndev, |
782 | "Error reading flash.\n"); | |
cdca8d02 RM |
783 | goto exit; |
784 | } | |
785 | } | |
786 | ||
787 | status = ql_validate_flash(qdev, | |
788 | sizeof(struct flash_params_8000) / sizeof(u16), | |
789 | "8000"); | |
790 | if (status) { | |
ae9540f7 | 791 | netif_err(qdev, ifup, qdev->ndev, "Invalid flash.\n"); |
cdca8d02 RM |
792 | status = -EINVAL; |
793 | goto exit; | |
794 | } | |
795 | ||
542512e4 RM |
796 | /* Extract either manufacturer or BOFM modified |
797 | * MAC address. | |
798 | */ | |
799 | if (qdev->flash.flash_params_8000.data_type1 == 2) | |
800 | memcpy(mac_addr, | |
801 | qdev->flash.flash_params_8000.mac_addr1, | |
802 | qdev->ndev->addr_len); | |
803 | else | |
804 | memcpy(mac_addr, | |
805 | qdev->flash.flash_params_8000.mac_addr, | |
806 | qdev->ndev->addr_len); | |
807 | ||
808 | if (!is_valid_ether_addr(mac_addr)) { | |
ae9540f7 | 809 | netif_err(qdev, ifup, qdev->ndev, "Invalid MAC address.\n"); |
cdca8d02 RM |
810 | status = -EINVAL; |
811 | goto exit; | |
812 | } | |
813 | ||
814 | memcpy(qdev->ndev->dev_addr, | |
542512e4 | 815 | mac_addr, |
cdca8d02 RM |
816 | qdev->ndev->addr_len); |
817 | ||
818 | exit: | |
819 | ql_sem_unlock(qdev, SEM_FLASH_MASK); | |
820 | return status; | |
821 | } | |
822 | ||
b0c2aadf | 823 | static int ql_get_8012_flash_params(struct ql_adapter *qdev) |
c4e84bde RM |
824 | { |
825 | int i; | |
826 | int status; | |
26351479 | 827 | __le32 *p = (__le32 *)&qdev->flash; |
e78f5fa7 | 828 | u32 offset = 0; |
b0c2aadf | 829 | u32 size = sizeof(struct flash_params_8012) / sizeof(u32); |
e78f5fa7 RM |
830 | |
831 | /* Second function's parameters follow the first | |
832 | * function's. | |
833 | */ | |
e4552f51 | 834 | if (qdev->port) |
b0c2aadf | 835 | offset = size; |
c4e84bde RM |
836 | |
837 | if (ql_sem_spinlock(qdev, SEM_FLASH_MASK)) | |
838 | return -ETIMEDOUT; | |
839 | ||
b0c2aadf | 840 | for (i = 0; i < size; i++, p++) { |
e78f5fa7 | 841 | status = ql_read_flash_word(qdev, i+offset, p); |
c4e84bde | 842 | if (status) { |
ae9540f7 JP |
843 | netif_err(qdev, ifup, qdev->ndev, |
844 | "Error reading flash.\n"); | |
c4e84bde RM |
845 | goto exit; |
846 | } | |
847 | ||
848 | } | |
b0c2aadf RM |
849 | |
850 | status = ql_validate_flash(qdev, | |
851 | sizeof(struct flash_params_8012) / sizeof(u16), | |
852 | "8012"); | |
853 | if (status) { | |
ae9540f7 | 854 | netif_err(qdev, ifup, qdev->ndev, "Invalid flash.\n"); |
b0c2aadf RM |
855 | status = -EINVAL; |
856 | goto exit; | |
857 | } | |
858 | ||
859 | if (!is_valid_ether_addr(qdev->flash.flash_params_8012.mac_addr)) { | |
860 | status = -EINVAL; | |
861 | goto exit; | |
862 | } | |
863 | ||
864 | memcpy(qdev->ndev->dev_addr, | |
865 | qdev->flash.flash_params_8012.mac_addr, | |
866 | qdev->ndev->addr_len); | |
867 | ||
c4e84bde RM |
868 | exit: |
869 | ql_sem_unlock(qdev, SEM_FLASH_MASK); | |
870 | return status; | |
871 | } | |
872 | ||
873 | /* xgmac register are located behind the xgmac_addr and xgmac_data | |
874 | * register pair. Each read/write requires us to wait for the ready | |
875 | * bit before reading/writing the data. | |
876 | */ | |
877 | static int ql_write_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 data) | |
878 | { | |
879 | int status; | |
880 | /* wait for reg to come ready */ | |
881 | status = ql_wait_reg_rdy(qdev, | |
882 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
883 | if (status) | |
884 | return status; | |
885 | /* write the data to the data reg */ | |
886 | ql_write32(qdev, XGMAC_DATA, data); | |
887 | /* trigger the write */ | |
888 | ql_write32(qdev, XGMAC_ADDR, reg); | |
889 | return status; | |
890 | } | |
891 | ||
892 | /* xgmac register are located behind the xgmac_addr and xgmac_data | |
893 | * register pair. Each read/write requires us to wait for the ready | |
894 | * bit before reading/writing the data. | |
895 | */ | |
896 | int ql_read_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 *data) | |
897 | { | |
898 | int status = 0; | |
899 | /* wait for reg to come ready */ | |
900 | status = ql_wait_reg_rdy(qdev, | |
901 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
902 | if (status) | |
903 | goto exit; | |
904 | /* set up for reg read */ | |
905 | ql_write32(qdev, XGMAC_ADDR, reg | XGMAC_ADDR_R); | |
906 | /* wait for reg to come ready */ | |
907 | status = ql_wait_reg_rdy(qdev, | |
908 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
909 | if (status) | |
910 | goto exit; | |
911 | /* get the data */ | |
912 | *data = ql_read32(qdev, XGMAC_DATA); | |
913 | exit: | |
914 | return status; | |
915 | } | |
916 | ||
917 | /* This is used for reading the 64-bit statistics regs. */ | |
918 | int ql_read_xgmac_reg64(struct ql_adapter *qdev, u32 reg, u64 *data) | |
919 | { | |
920 | int status = 0; | |
921 | u32 hi = 0; | |
922 | u32 lo = 0; | |
923 | ||
924 | status = ql_read_xgmac_reg(qdev, reg, &lo); | |
925 | if (status) | |
926 | goto exit; | |
927 | ||
928 | status = ql_read_xgmac_reg(qdev, reg + 4, &hi); | |
929 | if (status) | |
930 | goto exit; | |
931 | ||
932 | *data = (u64) lo | ((u64) hi << 32); | |
933 | ||
934 | exit: | |
935 | return status; | |
936 | } | |
937 | ||
cdca8d02 RM |
938 | static int ql_8000_port_initialize(struct ql_adapter *qdev) |
939 | { | |
bcc2cb3b | 940 | int status; |
cfec0cbc RM |
941 | /* |
942 | * Get MPI firmware version for driver banner | |
943 | * and ethool info. | |
944 | */ | |
945 | status = ql_mb_about_fw(qdev); | |
946 | if (status) | |
947 | goto exit; | |
bcc2cb3b RM |
948 | status = ql_mb_get_fw_state(qdev); |
949 | if (status) | |
950 | goto exit; | |
951 | /* Wake up a worker to get/set the TX/RX frame sizes. */ | |
952 | queue_delayed_work(qdev->workqueue, &qdev->mpi_port_cfg_work, 0); | |
953 | exit: | |
954 | return status; | |
cdca8d02 RM |
955 | } |
956 | ||
c4e84bde RM |
957 | /* Take the MAC Core out of reset. |
958 | * Enable statistics counting. | |
959 | * Take the transmitter/receiver out of reset. | |
960 | * This functionality may be done in the MPI firmware at a | |
961 | * later date. | |
962 | */ | |
b0c2aadf | 963 | static int ql_8012_port_initialize(struct ql_adapter *qdev) |
c4e84bde RM |
964 | { |
965 | int status = 0; | |
966 | u32 data; | |
967 | ||
968 | if (ql_sem_trylock(qdev, qdev->xg_sem_mask)) { | |
969 | /* Another function has the semaphore, so | |
970 | * wait for the port init bit to come ready. | |
971 | */ | |
ae9540f7 JP |
972 | netif_info(qdev, link, qdev->ndev, |
973 | "Another function has the semaphore, so wait for the port init bit to come ready.\n"); | |
c4e84bde RM |
974 | status = ql_wait_reg_rdy(qdev, STS, qdev->port_init, 0); |
975 | if (status) { | |
ae9540f7 JP |
976 | netif_crit(qdev, link, qdev->ndev, |
977 | "Port initialize timed out.\n"); | |
c4e84bde RM |
978 | } |
979 | return status; | |
980 | } | |
981 | ||
ae9540f7 | 982 | netif_info(qdev, link, qdev->ndev, "Got xgmac semaphore!.\n"); |
c4e84bde RM |
983 | /* Set the core reset. */ |
984 | status = ql_read_xgmac_reg(qdev, GLOBAL_CFG, &data); | |
985 | if (status) | |
986 | goto end; | |
987 | data |= GLOBAL_CFG_RESET; | |
988 | status = ql_write_xgmac_reg(qdev, GLOBAL_CFG, data); | |
989 | if (status) | |
990 | goto end; | |
991 | ||
992 | /* Clear the core reset and turn on jumbo for receiver. */ | |
993 | data &= ~GLOBAL_CFG_RESET; /* Clear core reset. */ | |
994 | data |= GLOBAL_CFG_JUMBO; /* Turn on jumbo. */ | |
995 | data |= GLOBAL_CFG_TX_STAT_EN; | |
996 | data |= GLOBAL_CFG_RX_STAT_EN; | |
997 | status = ql_write_xgmac_reg(qdev, GLOBAL_CFG, data); | |
998 | if (status) | |
999 | goto end; | |
1000 | ||
1001 | /* Enable transmitter, and clear it's reset. */ | |
1002 | status = ql_read_xgmac_reg(qdev, TX_CFG, &data); | |
1003 | if (status) | |
1004 | goto end; | |
1005 | data &= ~TX_CFG_RESET; /* Clear the TX MAC reset. */ | |
1006 | data |= TX_CFG_EN; /* Enable the transmitter. */ | |
1007 | status = ql_write_xgmac_reg(qdev, TX_CFG, data); | |
1008 | if (status) | |
1009 | goto end; | |
1010 | ||
1011 | /* Enable receiver and clear it's reset. */ | |
1012 | status = ql_read_xgmac_reg(qdev, RX_CFG, &data); | |
1013 | if (status) | |
1014 | goto end; | |
1015 | data &= ~RX_CFG_RESET; /* Clear the RX MAC reset. */ | |
1016 | data |= RX_CFG_EN; /* Enable the receiver. */ | |
1017 | status = ql_write_xgmac_reg(qdev, RX_CFG, data); | |
1018 | if (status) | |
1019 | goto end; | |
1020 | ||
1021 | /* Turn on jumbo. */ | |
1022 | status = | |
1023 | ql_write_xgmac_reg(qdev, MAC_TX_PARAMS, MAC_TX_PARAMS_JUMBO | (0x2580 << 16)); | |
1024 | if (status) | |
1025 | goto end; | |
1026 | status = | |
1027 | ql_write_xgmac_reg(qdev, MAC_RX_PARAMS, 0x2580); | |
1028 | if (status) | |
1029 | goto end; | |
1030 | ||
1031 | /* Signal to the world that the port is enabled. */ | |
1032 | ql_write32(qdev, STS, ((qdev->port_init << 16) | qdev->port_init)); | |
1033 | end: | |
1034 | ql_sem_unlock(qdev, qdev->xg_sem_mask); | |
1035 | return status; | |
1036 | } | |
1037 | ||
7c734359 RM |
1038 | static inline unsigned int ql_lbq_block_size(struct ql_adapter *qdev) |
1039 | { | |
1040 | return PAGE_SIZE << qdev->lbq_buf_order; | |
1041 | } | |
1042 | ||
c4e84bde | 1043 | /* Get the next large buffer. */ |
8668ae92 | 1044 | static struct bq_desc *ql_get_curr_lbuf(struct rx_ring *rx_ring) |
c4e84bde RM |
1045 | { |
1046 | struct bq_desc *lbq_desc = &rx_ring->lbq[rx_ring->lbq_curr_idx]; | |
1047 | rx_ring->lbq_curr_idx++; | |
1048 | if (rx_ring->lbq_curr_idx == rx_ring->lbq_len) | |
1049 | rx_ring->lbq_curr_idx = 0; | |
1050 | rx_ring->lbq_free_cnt++; | |
1051 | return lbq_desc; | |
1052 | } | |
1053 | ||
7c734359 RM |
1054 | static struct bq_desc *ql_get_curr_lchunk(struct ql_adapter *qdev, |
1055 | struct rx_ring *rx_ring) | |
1056 | { | |
1057 | struct bq_desc *lbq_desc = ql_get_curr_lbuf(rx_ring); | |
1058 | ||
1059 | pci_dma_sync_single_for_cpu(qdev->pdev, | |
1060 | pci_unmap_addr(lbq_desc, mapaddr), | |
1061 | rx_ring->lbq_buf_size, | |
1062 | PCI_DMA_FROMDEVICE); | |
1063 | ||
1064 | /* If it's the last chunk of our master page then | |
1065 | * we unmap it. | |
1066 | */ | |
1067 | if ((lbq_desc->p.pg_chunk.offset + rx_ring->lbq_buf_size) | |
1068 | == ql_lbq_block_size(qdev)) | |
1069 | pci_unmap_page(qdev->pdev, | |
1070 | lbq_desc->p.pg_chunk.map, | |
1071 | ql_lbq_block_size(qdev), | |
1072 | PCI_DMA_FROMDEVICE); | |
1073 | return lbq_desc; | |
1074 | } | |
1075 | ||
c4e84bde | 1076 | /* Get the next small buffer. */ |
8668ae92 | 1077 | static struct bq_desc *ql_get_curr_sbuf(struct rx_ring *rx_ring) |
c4e84bde RM |
1078 | { |
1079 | struct bq_desc *sbq_desc = &rx_ring->sbq[rx_ring->sbq_curr_idx]; | |
1080 | rx_ring->sbq_curr_idx++; | |
1081 | if (rx_ring->sbq_curr_idx == rx_ring->sbq_len) | |
1082 | rx_ring->sbq_curr_idx = 0; | |
1083 | rx_ring->sbq_free_cnt++; | |
1084 | return sbq_desc; | |
1085 | } | |
1086 | ||
1087 | /* Update an rx ring index. */ | |
1088 | static void ql_update_cq(struct rx_ring *rx_ring) | |
1089 | { | |
1090 | rx_ring->cnsmr_idx++; | |
1091 | rx_ring->curr_entry++; | |
1092 | if (unlikely(rx_ring->cnsmr_idx == rx_ring->cq_len)) { | |
1093 | rx_ring->cnsmr_idx = 0; | |
1094 | rx_ring->curr_entry = rx_ring->cq_base; | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | static void ql_write_cq_idx(struct rx_ring *rx_ring) | |
1099 | { | |
1100 | ql_write_db_reg(rx_ring->cnsmr_idx, rx_ring->cnsmr_idx_db_reg); | |
1101 | } | |
1102 | ||
7c734359 RM |
1103 | static int ql_get_next_chunk(struct ql_adapter *qdev, struct rx_ring *rx_ring, |
1104 | struct bq_desc *lbq_desc) | |
1105 | { | |
1106 | if (!rx_ring->pg_chunk.page) { | |
1107 | u64 map; | |
1108 | rx_ring->pg_chunk.page = alloc_pages(__GFP_COLD | __GFP_COMP | | |
1109 | GFP_ATOMIC, | |
1110 | qdev->lbq_buf_order); | |
1111 | if (unlikely(!rx_ring->pg_chunk.page)) { | |
ae9540f7 JP |
1112 | netif_err(qdev, drv, qdev->ndev, |
1113 | "page allocation failed.\n"); | |
7c734359 RM |
1114 | return -ENOMEM; |
1115 | } | |
1116 | rx_ring->pg_chunk.offset = 0; | |
1117 | map = pci_map_page(qdev->pdev, rx_ring->pg_chunk.page, | |
1118 | 0, ql_lbq_block_size(qdev), | |
1119 | PCI_DMA_FROMDEVICE); | |
1120 | if (pci_dma_mapping_error(qdev->pdev, map)) { | |
1121 | __free_pages(rx_ring->pg_chunk.page, | |
1122 | qdev->lbq_buf_order); | |
ae9540f7 JP |
1123 | netif_err(qdev, drv, qdev->ndev, |
1124 | "PCI mapping failed.\n"); | |
7c734359 RM |
1125 | return -ENOMEM; |
1126 | } | |
1127 | rx_ring->pg_chunk.map = map; | |
1128 | rx_ring->pg_chunk.va = page_address(rx_ring->pg_chunk.page); | |
1129 | } | |
1130 | ||
1131 | /* Copy the current master pg_chunk info | |
1132 | * to the current descriptor. | |
1133 | */ | |
1134 | lbq_desc->p.pg_chunk = rx_ring->pg_chunk; | |
1135 | ||
1136 | /* Adjust the master page chunk for next | |
1137 | * buffer get. | |
1138 | */ | |
1139 | rx_ring->pg_chunk.offset += rx_ring->lbq_buf_size; | |
1140 | if (rx_ring->pg_chunk.offset == ql_lbq_block_size(qdev)) { | |
1141 | rx_ring->pg_chunk.page = NULL; | |
1142 | lbq_desc->p.pg_chunk.last_flag = 1; | |
1143 | } else { | |
1144 | rx_ring->pg_chunk.va += rx_ring->lbq_buf_size; | |
1145 | get_page(rx_ring->pg_chunk.page); | |
1146 | lbq_desc->p.pg_chunk.last_flag = 0; | |
1147 | } | |
1148 | return 0; | |
1149 | } | |
c4e84bde RM |
1150 | /* Process (refill) a large buffer queue. */ |
1151 | static void ql_update_lbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
1152 | { | |
49f2186d RM |
1153 | u32 clean_idx = rx_ring->lbq_clean_idx; |
1154 | u32 start_idx = clean_idx; | |
c4e84bde | 1155 | struct bq_desc *lbq_desc; |
c4e84bde RM |
1156 | u64 map; |
1157 | int i; | |
1158 | ||
7c734359 | 1159 | while (rx_ring->lbq_free_cnt > 32) { |
c4e84bde | 1160 | for (i = 0; i < 16; i++) { |
ae9540f7 JP |
1161 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1162 | "lbq: try cleaning clean_idx = %d.\n", | |
1163 | clean_idx); | |
c4e84bde | 1164 | lbq_desc = &rx_ring->lbq[clean_idx]; |
7c734359 | 1165 | if (ql_get_next_chunk(qdev, rx_ring, lbq_desc)) { |
ae9540f7 JP |
1166 | netif_err(qdev, ifup, qdev->ndev, |
1167 | "Could not get a page chunk.\n"); | |
1168 | return; | |
1169 | } | |
7c734359 RM |
1170 | |
1171 | map = lbq_desc->p.pg_chunk.map + | |
1172 | lbq_desc->p.pg_chunk.offset; | |
c4e84bde | 1173 | pci_unmap_addr_set(lbq_desc, mapaddr, map); |
7c734359 RM |
1174 | pci_unmap_len_set(lbq_desc, maplen, |
1175 | rx_ring->lbq_buf_size); | |
2c9a0d41 | 1176 | *lbq_desc->addr = cpu_to_le64(map); |
7c734359 RM |
1177 | |
1178 | pci_dma_sync_single_for_device(qdev->pdev, map, | |
1179 | rx_ring->lbq_buf_size, | |
1180 | PCI_DMA_FROMDEVICE); | |
c4e84bde RM |
1181 | clean_idx++; |
1182 | if (clean_idx == rx_ring->lbq_len) | |
1183 | clean_idx = 0; | |
1184 | } | |
1185 | ||
1186 | rx_ring->lbq_clean_idx = clean_idx; | |
1187 | rx_ring->lbq_prod_idx += 16; | |
1188 | if (rx_ring->lbq_prod_idx == rx_ring->lbq_len) | |
1189 | rx_ring->lbq_prod_idx = 0; | |
49f2186d RM |
1190 | rx_ring->lbq_free_cnt -= 16; |
1191 | } | |
1192 | ||
1193 | if (start_idx != clean_idx) { | |
ae9540f7 JP |
1194 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1195 | "lbq: updating prod idx = %d.\n", | |
1196 | rx_ring->lbq_prod_idx); | |
c4e84bde RM |
1197 | ql_write_db_reg(rx_ring->lbq_prod_idx, |
1198 | rx_ring->lbq_prod_idx_db_reg); | |
c4e84bde RM |
1199 | } |
1200 | } | |
1201 | ||
1202 | /* Process (refill) a small buffer queue. */ | |
1203 | static void ql_update_sbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
1204 | { | |
49f2186d RM |
1205 | u32 clean_idx = rx_ring->sbq_clean_idx; |
1206 | u32 start_idx = clean_idx; | |
c4e84bde | 1207 | struct bq_desc *sbq_desc; |
c4e84bde RM |
1208 | u64 map; |
1209 | int i; | |
1210 | ||
1211 | while (rx_ring->sbq_free_cnt > 16) { | |
1212 | for (i = 0; i < 16; i++) { | |
1213 | sbq_desc = &rx_ring->sbq[clean_idx]; | |
ae9540f7 JP |
1214 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1215 | "sbq: try cleaning clean_idx = %d.\n", | |
1216 | clean_idx); | |
c4e84bde | 1217 | if (sbq_desc->p.skb == NULL) { |
ae9540f7 JP |
1218 | netif_printk(qdev, rx_status, KERN_DEBUG, |
1219 | qdev->ndev, | |
1220 | "sbq: getting new skb for index %d.\n", | |
1221 | sbq_desc->index); | |
c4e84bde RM |
1222 | sbq_desc->p.skb = |
1223 | netdev_alloc_skb(qdev->ndev, | |
52e55f3c | 1224 | SMALL_BUFFER_SIZE); |
c4e84bde | 1225 | if (sbq_desc->p.skb == NULL) { |
ae9540f7 JP |
1226 | netif_err(qdev, probe, qdev->ndev, |
1227 | "Couldn't get an skb.\n"); | |
c4e84bde RM |
1228 | rx_ring->sbq_clean_idx = clean_idx; |
1229 | return; | |
1230 | } | |
1231 | skb_reserve(sbq_desc->p.skb, QLGE_SB_PAD); | |
1232 | map = pci_map_single(qdev->pdev, | |
1233 | sbq_desc->p.skb->data, | |
52e55f3c RM |
1234 | rx_ring->sbq_buf_size, |
1235 | PCI_DMA_FROMDEVICE); | |
c907a35a | 1236 | if (pci_dma_mapping_error(qdev->pdev, map)) { |
ae9540f7 JP |
1237 | netif_err(qdev, ifup, qdev->ndev, |
1238 | "PCI mapping failed.\n"); | |
c907a35a | 1239 | rx_ring->sbq_clean_idx = clean_idx; |
06a3d510 RM |
1240 | dev_kfree_skb_any(sbq_desc->p.skb); |
1241 | sbq_desc->p.skb = NULL; | |
c907a35a RM |
1242 | return; |
1243 | } | |
c4e84bde RM |
1244 | pci_unmap_addr_set(sbq_desc, mapaddr, map); |
1245 | pci_unmap_len_set(sbq_desc, maplen, | |
52e55f3c | 1246 | rx_ring->sbq_buf_size); |
2c9a0d41 | 1247 | *sbq_desc->addr = cpu_to_le64(map); |
c4e84bde RM |
1248 | } |
1249 | ||
1250 | clean_idx++; | |
1251 | if (clean_idx == rx_ring->sbq_len) | |
1252 | clean_idx = 0; | |
1253 | } | |
1254 | rx_ring->sbq_clean_idx = clean_idx; | |
1255 | rx_ring->sbq_prod_idx += 16; | |
1256 | if (rx_ring->sbq_prod_idx == rx_ring->sbq_len) | |
1257 | rx_ring->sbq_prod_idx = 0; | |
49f2186d RM |
1258 | rx_ring->sbq_free_cnt -= 16; |
1259 | } | |
1260 | ||
1261 | if (start_idx != clean_idx) { | |
ae9540f7 JP |
1262 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1263 | "sbq: updating prod idx = %d.\n", | |
1264 | rx_ring->sbq_prod_idx); | |
c4e84bde RM |
1265 | ql_write_db_reg(rx_ring->sbq_prod_idx, |
1266 | rx_ring->sbq_prod_idx_db_reg); | |
c4e84bde RM |
1267 | } |
1268 | } | |
1269 | ||
1270 | static void ql_update_buffer_queues(struct ql_adapter *qdev, | |
1271 | struct rx_ring *rx_ring) | |
1272 | { | |
1273 | ql_update_sbq(qdev, rx_ring); | |
1274 | ql_update_lbq(qdev, rx_ring); | |
1275 | } | |
1276 | ||
1277 | /* Unmaps tx buffers. Can be called from send() if a pci mapping | |
1278 | * fails at some stage, or from the interrupt when a tx completes. | |
1279 | */ | |
1280 | static void ql_unmap_send(struct ql_adapter *qdev, | |
1281 | struct tx_ring_desc *tx_ring_desc, int mapped) | |
1282 | { | |
1283 | int i; | |
1284 | for (i = 0; i < mapped; i++) { | |
1285 | if (i == 0 || (i == 7 && mapped > 7)) { | |
1286 | /* | |
1287 | * Unmap the skb->data area, or the | |
1288 | * external sglist (AKA the Outbound | |
1289 | * Address List (OAL)). | |
1290 | * If its the zeroeth element, then it's | |
1291 | * the skb->data area. If it's the 7th | |
1292 | * element and there is more than 6 frags, | |
1293 | * then its an OAL. | |
1294 | */ | |
1295 | if (i == 7) { | |
ae9540f7 JP |
1296 | netif_printk(qdev, tx_done, KERN_DEBUG, |
1297 | qdev->ndev, | |
1298 | "unmapping OAL area.\n"); | |
c4e84bde RM |
1299 | } |
1300 | pci_unmap_single(qdev->pdev, | |
1301 | pci_unmap_addr(&tx_ring_desc->map[i], | |
1302 | mapaddr), | |
1303 | pci_unmap_len(&tx_ring_desc->map[i], | |
1304 | maplen), | |
1305 | PCI_DMA_TODEVICE); | |
1306 | } else { | |
ae9540f7 JP |
1307 | netif_printk(qdev, tx_done, KERN_DEBUG, qdev->ndev, |
1308 | "unmapping frag %d.\n", i); | |
c4e84bde RM |
1309 | pci_unmap_page(qdev->pdev, |
1310 | pci_unmap_addr(&tx_ring_desc->map[i], | |
1311 | mapaddr), | |
1312 | pci_unmap_len(&tx_ring_desc->map[i], | |
1313 | maplen), PCI_DMA_TODEVICE); | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | } | |
1318 | ||
1319 | /* Map the buffers for this transmit. This will return | |
1320 | * NETDEV_TX_BUSY or NETDEV_TX_OK based on success. | |
1321 | */ | |
1322 | static int ql_map_send(struct ql_adapter *qdev, | |
1323 | struct ob_mac_iocb_req *mac_iocb_ptr, | |
1324 | struct sk_buff *skb, struct tx_ring_desc *tx_ring_desc) | |
1325 | { | |
1326 | int len = skb_headlen(skb); | |
1327 | dma_addr_t map; | |
1328 | int frag_idx, err, map_idx = 0; | |
1329 | struct tx_buf_desc *tbd = mac_iocb_ptr->tbd; | |
1330 | int frag_cnt = skb_shinfo(skb)->nr_frags; | |
1331 | ||
1332 | if (frag_cnt) { | |
ae9540f7 JP |
1333 | netif_printk(qdev, tx_queued, KERN_DEBUG, qdev->ndev, |
1334 | "frag_cnt = %d.\n", frag_cnt); | |
c4e84bde RM |
1335 | } |
1336 | /* | |
1337 | * Map the skb buffer first. | |
1338 | */ | |
1339 | map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
1340 | ||
1341 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1342 | if (err) { | |
ae9540f7 JP |
1343 | netif_err(qdev, tx_queued, qdev->ndev, |
1344 | "PCI mapping failed with error: %d\n", err); | |
c4e84bde RM |
1345 | |
1346 | return NETDEV_TX_BUSY; | |
1347 | } | |
1348 | ||
1349 | tbd->len = cpu_to_le32(len); | |
1350 | tbd->addr = cpu_to_le64(map); | |
1351 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, map); | |
1352 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, len); | |
1353 | map_idx++; | |
1354 | ||
1355 | /* | |
1356 | * This loop fills the remainder of the 8 address descriptors | |
1357 | * in the IOCB. If there are more than 7 fragments, then the | |
1358 | * eighth address desc will point to an external list (OAL). | |
1359 | * When this happens, the remainder of the frags will be stored | |
1360 | * in this list. | |
1361 | */ | |
1362 | for (frag_idx = 0; frag_idx < frag_cnt; frag_idx++, map_idx++) { | |
1363 | skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_idx]; | |
1364 | tbd++; | |
1365 | if (frag_idx == 6 && frag_cnt > 7) { | |
1366 | /* Let's tack on an sglist. | |
1367 | * Our control block will now | |
1368 | * look like this: | |
1369 | * iocb->seg[0] = skb->data | |
1370 | * iocb->seg[1] = frag[0] | |
1371 | * iocb->seg[2] = frag[1] | |
1372 | * iocb->seg[3] = frag[2] | |
1373 | * iocb->seg[4] = frag[3] | |
1374 | * iocb->seg[5] = frag[4] | |
1375 | * iocb->seg[6] = frag[5] | |
1376 | * iocb->seg[7] = ptr to OAL (external sglist) | |
1377 | * oal->seg[0] = frag[6] | |
1378 | * oal->seg[1] = frag[7] | |
1379 | * oal->seg[2] = frag[8] | |
1380 | * oal->seg[3] = frag[9] | |
1381 | * oal->seg[4] = frag[10] | |
1382 | * etc... | |
1383 | */ | |
1384 | /* Tack on the OAL in the eighth segment of IOCB. */ | |
1385 | map = pci_map_single(qdev->pdev, &tx_ring_desc->oal, | |
1386 | sizeof(struct oal), | |
1387 | PCI_DMA_TODEVICE); | |
1388 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1389 | if (err) { | |
ae9540f7 JP |
1390 | netif_err(qdev, tx_queued, qdev->ndev, |
1391 | "PCI mapping outbound address list with error: %d\n", | |
1392 | err); | |
c4e84bde RM |
1393 | goto map_error; |
1394 | } | |
1395 | ||
1396 | tbd->addr = cpu_to_le64(map); | |
1397 | /* | |
1398 | * The length is the number of fragments | |
1399 | * that remain to be mapped times the length | |
1400 | * of our sglist (OAL). | |
1401 | */ | |
1402 | tbd->len = | |
1403 | cpu_to_le32((sizeof(struct tx_buf_desc) * | |
1404 | (frag_cnt - frag_idx)) | TX_DESC_C); | |
1405 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, | |
1406 | map); | |
1407 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, | |
1408 | sizeof(struct oal)); | |
1409 | tbd = (struct tx_buf_desc *)&tx_ring_desc->oal; | |
1410 | map_idx++; | |
1411 | } | |
1412 | ||
1413 | map = | |
1414 | pci_map_page(qdev->pdev, frag->page, | |
1415 | frag->page_offset, frag->size, | |
1416 | PCI_DMA_TODEVICE); | |
1417 | ||
1418 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1419 | if (err) { | |
ae9540f7 JP |
1420 | netif_err(qdev, tx_queued, qdev->ndev, |
1421 | "PCI mapping frags failed with error: %d.\n", | |
1422 | err); | |
c4e84bde RM |
1423 | goto map_error; |
1424 | } | |
1425 | ||
1426 | tbd->addr = cpu_to_le64(map); | |
1427 | tbd->len = cpu_to_le32(frag->size); | |
1428 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, map); | |
1429 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, | |
1430 | frag->size); | |
1431 | ||
1432 | } | |
1433 | /* Save the number of segments we've mapped. */ | |
1434 | tx_ring_desc->map_cnt = map_idx; | |
1435 | /* Terminate the last segment. */ | |
1436 | tbd->len = cpu_to_le32(le32_to_cpu(tbd->len) | TX_DESC_E); | |
1437 | return NETDEV_TX_OK; | |
1438 | ||
1439 | map_error: | |
1440 | /* | |
1441 | * If the first frag mapping failed, then i will be zero. | |
1442 | * This causes the unmap of the skb->data area. Otherwise | |
1443 | * we pass in the number of frags that mapped successfully | |
1444 | * so they can be umapped. | |
1445 | */ | |
1446 | ql_unmap_send(qdev, tx_ring_desc, map_idx); | |
1447 | return NETDEV_TX_BUSY; | |
1448 | } | |
1449 | ||
63526713 RM |
1450 | /* Process an inbound completion from an rx ring. */ |
1451 | static void ql_process_mac_rx_gro_page(struct ql_adapter *qdev, | |
1452 | struct rx_ring *rx_ring, | |
1453 | struct ib_mac_iocb_rsp *ib_mac_rsp, | |
1454 | u32 length, | |
1455 | u16 vlan_id) | |
1456 | { | |
1457 | struct sk_buff *skb; | |
1458 | struct bq_desc *lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); | |
1459 | struct skb_frag_struct *rx_frag; | |
1460 | int nr_frags; | |
1461 | struct napi_struct *napi = &rx_ring->napi; | |
1462 | ||
1463 | napi->dev = qdev->ndev; | |
1464 | ||
1465 | skb = napi_get_frags(napi); | |
1466 | if (!skb) { | |
ae9540f7 JP |
1467 | netif_err(qdev, drv, qdev->ndev, |
1468 | "Couldn't get an skb, exiting.\n"); | |
63526713 RM |
1469 | rx_ring->rx_dropped++; |
1470 | put_page(lbq_desc->p.pg_chunk.page); | |
1471 | return; | |
1472 | } | |
1473 | prefetch(lbq_desc->p.pg_chunk.va); | |
1474 | rx_frag = skb_shinfo(skb)->frags; | |
1475 | nr_frags = skb_shinfo(skb)->nr_frags; | |
1476 | rx_frag += nr_frags; | |
1477 | rx_frag->page = lbq_desc->p.pg_chunk.page; | |
1478 | rx_frag->page_offset = lbq_desc->p.pg_chunk.offset; | |
1479 | rx_frag->size = length; | |
1480 | ||
1481 | skb->len += length; | |
1482 | skb->data_len += length; | |
1483 | skb->truesize += length; | |
1484 | skb_shinfo(skb)->nr_frags++; | |
1485 | ||
1486 | rx_ring->rx_packets++; | |
1487 | rx_ring->rx_bytes += length; | |
1488 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1489 | skb_record_rx_queue(skb, rx_ring->cq_id); | |
1490 | if (qdev->vlgrp && (vlan_id != 0xffff)) | |
1491 | vlan_gro_frags(&rx_ring->napi, qdev->vlgrp, vlan_id); | |
1492 | else | |
1493 | napi_gro_frags(napi); | |
1494 | } | |
1495 | ||
4f848c0a RM |
1496 | /* Process an inbound completion from an rx ring. */ |
1497 | static void ql_process_mac_rx_page(struct ql_adapter *qdev, | |
1498 | struct rx_ring *rx_ring, | |
1499 | struct ib_mac_iocb_rsp *ib_mac_rsp, | |
1500 | u32 length, | |
1501 | u16 vlan_id) | |
1502 | { | |
1503 | struct net_device *ndev = qdev->ndev; | |
1504 | struct sk_buff *skb = NULL; | |
1505 | void *addr; | |
1506 | struct bq_desc *lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); | |
1507 | struct napi_struct *napi = &rx_ring->napi; | |
1508 | ||
1509 | skb = netdev_alloc_skb(ndev, length); | |
1510 | if (!skb) { | |
ae9540f7 JP |
1511 | netif_err(qdev, drv, qdev->ndev, |
1512 | "Couldn't get an skb, need to unwind!.\n"); | |
4f848c0a RM |
1513 | rx_ring->rx_dropped++; |
1514 | put_page(lbq_desc->p.pg_chunk.page); | |
1515 | return; | |
1516 | } | |
1517 | ||
1518 | addr = lbq_desc->p.pg_chunk.va; | |
1519 | prefetch(addr); | |
1520 | ||
1521 | ||
1522 | /* Frame error, so drop the packet. */ | |
1523 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { | |
ae9540f7 JP |
1524 | netif_err(qdev, drv, qdev->ndev, |
1525 | "Receive error, flags2 = 0x%x\n", ib_mac_rsp->flags2); | |
4f848c0a RM |
1526 | rx_ring->rx_errors++; |
1527 | goto err_out; | |
1528 | } | |
1529 | ||
1530 | /* The max framesize filter on this chip is set higher than | |
1531 | * MTU since FCoE uses 2k frames. | |
1532 | */ | |
1533 | if (skb->len > ndev->mtu + ETH_HLEN) { | |
ae9540f7 JP |
1534 | netif_err(qdev, drv, qdev->ndev, |
1535 | "Segment too small, dropping.\n"); | |
4f848c0a RM |
1536 | rx_ring->rx_dropped++; |
1537 | goto err_out; | |
1538 | } | |
1539 | memcpy(skb_put(skb, ETH_HLEN), addr, ETH_HLEN); | |
ae9540f7 JP |
1540 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1541 | "%d bytes of headers and data in large. Chain page to new skb and pull tail.\n", | |
1542 | length); | |
4f848c0a RM |
1543 | skb_fill_page_desc(skb, 0, lbq_desc->p.pg_chunk.page, |
1544 | lbq_desc->p.pg_chunk.offset+ETH_HLEN, | |
1545 | length-ETH_HLEN); | |
1546 | skb->len += length-ETH_HLEN; | |
1547 | skb->data_len += length-ETH_HLEN; | |
1548 | skb->truesize += length-ETH_HLEN; | |
1549 | ||
1550 | rx_ring->rx_packets++; | |
1551 | rx_ring->rx_bytes += skb->len; | |
1552 | skb->protocol = eth_type_trans(skb, ndev); | |
1553 | skb->ip_summed = CHECKSUM_NONE; | |
1554 | ||
1555 | if (qdev->rx_csum && | |
1556 | !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK)) { | |
1557 | /* TCP frame. */ | |
1558 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) { | |
ae9540f7 JP |
1559 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1560 | "TCP checksum done!\n"); | |
4f848c0a RM |
1561 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
1562 | } else if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && | |
1563 | (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) { | |
1564 | /* Unfragmented ipv4 UDP frame. */ | |
1565 | struct iphdr *iph = (struct iphdr *) skb->data; | |
1566 | if (!(iph->frag_off & | |
1567 | cpu_to_be16(IP_MF|IP_OFFSET))) { | |
1568 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
ae9540f7 JP |
1569 | netif_printk(qdev, rx_status, KERN_DEBUG, |
1570 | qdev->ndev, | |
1571 | "TCP checksum done!\n"); | |
4f848c0a RM |
1572 | } |
1573 | } | |
1574 | } | |
1575 | ||
1576 | skb_record_rx_queue(skb, rx_ring->cq_id); | |
1577 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) { | |
1578 | if (qdev->vlgrp && (vlan_id != 0xffff)) | |
1579 | vlan_gro_receive(napi, qdev->vlgrp, vlan_id, skb); | |
1580 | else | |
1581 | napi_gro_receive(napi, skb); | |
1582 | } else { | |
1583 | if (qdev->vlgrp && (vlan_id != 0xffff)) | |
1584 | vlan_hwaccel_receive_skb(skb, qdev->vlgrp, vlan_id); | |
1585 | else | |
1586 | netif_receive_skb(skb); | |
1587 | } | |
1588 | return; | |
1589 | err_out: | |
1590 | dev_kfree_skb_any(skb); | |
1591 | put_page(lbq_desc->p.pg_chunk.page); | |
1592 | } | |
1593 | ||
1594 | /* Process an inbound completion from an rx ring. */ | |
1595 | static void ql_process_mac_rx_skb(struct ql_adapter *qdev, | |
1596 | struct rx_ring *rx_ring, | |
1597 | struct ib_mac_iocb_rsp *ib_mac_rsp, | |
1598 | u32 length, | |
1599 | u16 vlan_id) | |
1600 | { | |
1601 | struct net_device *ndev = qdev->ndev; | |
1602 | struct sk_buff *skb = NULL; | |
1603 | struct sk_buff *new_skb = NULL; | |
1604 | struct bq_desc *sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1605 | ||
1606 | skb = sbq_desc->p.skb; | |
1607 | /* Allocate new_skb and copy */ | |
1608 | new_skb = netdev_alloc_skb(qdev->ndev, length + NET_IP_ALIGN); | |
1609 | if (new_skb == NULL) { | |
ae9540f7 JP |
1610 | netif_err(qdev, probe, qdev->ndev, |
1611 | "No skb available, drop the packet.\n"); | |
4f848c0a RM |
1612 | rx_ring->rx_dropped++; |
1613 | return; | |
1614 | } | |
1615 | skb_reserve(new_skb, NET_IP_ALIGN); | |
1616 | memcpy(skb_put(new_skb, length), skb->data, length); | |
1617 | skb = new_skb; | |
1618 | ||
1619 | /* Frame error, so drop the packet. */ | |
1620 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { | |
ae9540f7 JP |
1621 | netif_err(qdev, drv, qdev->ndev, |
1622 | "Receive error, flags2 = 0x%x\n", ib_mac_rsp->flags2); | |
4f848c0a RM |
1623 | dev_kfree_skb_any(skb); |
1624 | rx_ring->rx_errors++; | |
1625 | return; | |
1626 | } | |
1627 | ||
1628 | /* loopback self test for ethtool */ | |
1629 | if (test_bit(QL_SELFTEST, &qdev->flags)) { | |
1630 | ql_check_lb_frame(qdev, skb); | |
1631 | dev_kfree_skb_any(skb); | |
1632 | return; | |
1633 | } | |
1634 | ||
1635 | /* The max framesize filter on this chip is set higher than | |
1636 | * MTU since FCoE uses 2k frames. | |
1637 | */ | |
1638 | if (skb->len > ndev->mtu + ETH_HLEN) { | |
1639 | dev_kfree_skb_any(skb); | |
1640 | rx_ring->rx_dropped++; | |
1641 | return; | |
1642 | } | |
1643 | ||
1644 | prefetch(skb->data); | |
1645 | skb->dev = ndev; | |
1646 | if (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) { | |
ae9540f7 JP |
1647 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1648 | "%s Multicast.\n", | |
1649 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1650 | IB_MAC_IOCB_RSP_M_HASH ? "Hash" : | |
1651 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1652 | IB_MAC_IOCB_RSP_M_REG ? "Registered" : | |
1653 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1654 | IB_MAC_IOCB_RSP_M_PROM ? "Promiscuous" : ""); | |
4f848c0a RM |
1655 | } |
1656 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_P) | |
ae9540f7 JP |
1657 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1658 | "Promiscuous Packet.\n"); | |
4f848c0a RM |
1659 | |
1660 | rx_ring->rx_packets++; | |
1661 | rx_ring->rx_bytes += skb->len; | |
1662 | skb->protocol = eth_type_trans(skb, ndev); | |
1663 | skb->ip_summed = CHECKSUM_NONE; | |
1664 | ||
1665 | /* If rx checksum is on, and there are no | |
1666 | * csum or frame errors. | |
1667 | */ | |
1668 | if (qdev->rx_csum && | |
1669 | !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK)) { | |
1670 | /* TCP frame. */ | |
1671 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) { | |
ae9540f7 JP |
1672 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1673 | "TCP checksum done!\n"); | |
4f848c0a RM |
1674 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
1675 | } else if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && | |
1676 | (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) { | |
1677 | /* Unfragmented ipv4 UDP frame. */ | |
1678 | struct iphdr *iph = (struct iphdr *) skb->data; | |
1679 | if (!(iph->frag_off & | |
1680 | cpu_to_be16(IP_MF|IP_OFFSET))) { | |
1681 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
ae9540f7 JP |
1682 | netif_printk(qdev, rx_status, KERN_DEBUG, |
1683 | qdev->ndev, | |
1684 | "TCP checksum done!\n"); | |
4f848c0a RM |
1685 | } |
1686 | } | |
1687 | } | |
1688 | ||
1689 | skb_record_rx_queue(skb, rx_ring->cq_id); | |
1690 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) { | |
1691 | if (qdev->vlgrp && (vlan_id != 0xffff)) | |
1692 | vlan_gro_receive(&rx_ring->napi, qdev->vlgrp, | |
1693 | vlan_id, skb); | |
1694 | else | |
1695 | napi_gro_receive(&rx_ring->napi, skb); | |
1696 | } else { | |
1697 | if (qdev->vlgrp && (vlan_id != 0xffff)) | |
1698 | vlan_hwaccel_receive_skb(skb, qdev->vlgrp, vlan_id); | |
1699 | else | |
1700 | netif_receive_skb(skb); | |
1701 | } | |
1702 | } | |
1703 | ||
8668ae92 | 1704 | static void ql_realign_skb(struct sk_buff *skb, int len) |
c4e84bde RM |
1705 | { |
1706 | void *temp_addr = skb->data; | |
1707 | ||
1708 | /* Undo the skb_reserve(skb,32) we did before | |
1709 | * giving to hardware, and realign data on | |
1710 | * a 2-byte boundary. | |
1711 | */ | |
1712 | skb->data -= QLGE_SB_PAD - NET_IP_ALIGN; | |
1713 | skb->tail -= QLGE_SB_PAD - NET_IP_ALIGN; | |
1714 | skb_copy_to_linear_data(skb, temp_addr, | |
1715 | (unsigned int)len); | |
1716 | } | |
1717 | ||
1718 | /* | |
1719 | * This function builds an skb for the given inbound | |
1720 | * completion. It will be rewritten for readability in the near | |
1721 | * future, but for not it works well. | |
1722 | */ | |
1723 | static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev, | |
1724 | struct rx_ring *rx_ring, | |
1725 | struct ib_mac_iocb_rsp *ib_mac_rsp) | |
1726 | { | |
1727 | struct bq_desc *lbq_desc; | |
1728 | struct bq_desc *sbq_desc; | |
1729 | struct sk_buff *skb = NULL; | |
1730 | u32 length = le32_to_cpu(ib_mac_rsp->data_len); | |
1731 | u32 hdr_len = le32_to_cpu(ib_mac_rsp->hdr_len); | |
1732 | ||
1733 | /* | |
1734 | * Handle the header buffer if present. | |
1735 | */ | |
1736 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HV && | |
1737 | ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
ae9540f7 JP |
1738 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1739 | "Header of %d bytes in small buffer.\n", hdr_len); | |
c4e84bde RM |
1740 | /* |
1741 | * Headers fit nicely into a small buffer. | |
1742 | */ | |
1743 | sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1744 | pci_unmap_single(qdev->pdev, | |
1745 | pci_unmap_addr(sbq_desc, mapaddr), | |
1746 | pci_unmap_len(sbq_desc, maplen), | |
1747 | PCI_DMA_FROMDEVICE); | |
1748 | skb = sbq_desc->p.skb; | |
1749 | ql_realign_skb(skb, hdr_len); | |
1750 | skb_put(skb, hdr_len); | |
1751 | sbq_desc->p.skb = NULL; | |
1752 | } | |
1753 | ||
1754 | /* | |
1755 | * Handle the data buffer(s). | |
1756 | */ | |
1757 | if (unlikely(!length)) { /* Is there data too? */ | |
ae9540f7 JP |
1758 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1759 | "No Data buffer in this packet.\n"); | |
c4e84bde RM |
1760 | return skb; |
1761 | } | |
1762 | ||
1763 | if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DS) { | |
1764 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
ae9540f7 JP |
1765 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1766 | "Headers in small, data of %d bytes in small, combine them.\n", | |
1767 | length); | |
c4e84bde RM |
1768 | /* |
1769 | * Data is less than small buffer size so it's | |
1770 | * stuffed in a small buffer. | |
1771 | * For this case we append the data | |
1772 | * from the "data" small buffer to the "header" small | |
1773 | * buffer. | |
1774 | */ | |
1775 | sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1776 | pci_dma_sync_single_for_cpu(qdev->pdev, | |
1777 | pci_unmap_addr | |
1778 | (sbq_desc, mapaddr), | |
1779 | pci_unmap_len | |
1780 | (sbq_desc, maplen), | |
1781 | PCI_DMA_FROMDEVICE); | |
1782 | memcpy(skb_put(skb, length), | |
1783 | sbq_desc->p.skb->data, length); | |
1784 | pci_dma_sync_single_for_device(qdev->pdev, | |
1785 | pci_unmap_addr | |
1786 | (sbq_desc, | |
1787 | mapaddr), | |
1788 | pci_unmap_len | |
1789 | (sbq_desc, | |
1790 | maplen), | |
1791 | PCI_DMA_FROMDEVICE); | |
1792 | } else { | |
ae9540f7 JP |
1793 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1794 | "%d bytes in a single small buffer.\n", | |
1795 | length); | |
c4e84bde RM |
1796 | sbq_desc = ql_get_curr_sbuf(rx_ring); |
1797 | skb = sbq_desc->p.skb; | |
1798 | ql_realign_skb(skb, length); | |
1799 | skb_put(skb, length); | |
1800 | pci_unmap_single(qdev->pdev, | |
1801 | pci_unmap_addr(sbq_desc, | |
1802 | mapaddr), | |
1803 | pci_unmap_len(sbq_desc, | |
1804 | maplen), | |
1805 | PCI_DMA_FROMDEVICE); | |
1806 | sbq_desc->p.skb = NULL; | |
1807 | } | |
1808 | } else if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) { | |
1809 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
ae9540f7 JP |
1810 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1811 | "Header in small, %d bytes in large. Chain large to small!\n", | |
1812 | length); | |
c4e84bde RM |
1813 | /* |
1814 | * The data is in a single large buffer. We | |
1815 | * chain it to the header buffer's skb and let | |
1816 | * it rip. | |
1817 | */ | |
7c734359 | 1818 | lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); |
ae9540f7 JP |
1819 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1820 | "Chaining page at offset = %d, for %d bytes to skb.\n", | |
1821 | lbq_desc->p.pg_chunk.offset, length); | |
7c734359 RM |
1822 | skb_fill_page_desc(skb, 0, lbq_desc->p.pg_chunk.page, |
1823 | lbq_desc->p.pg_chunk.offset, | |
1824 | length); | |
c4e84bde RM |
1825 | skb->len += length; |
1826 | skb->data_len += length; | |
1827 | skb->truesize += length; | |
c4e84bde RM |
1828 | } else { |
1829 | /* | |
1830 | * The headers and data are in a single large buffer. We | |
1831 | * copy it to a new skb and let it go. This can happen with | |
1832 | * jumbo mtu on a non-TCP/UDP frame. | |
1833 | */ | |
7c734359 | 1834 | lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); |
c4e84bde RM |
1835 | skb = netdev_alloc_skb(qdev->ndev, length); |
1836 | if (skb == NULL) { | |
ae9540f7 JP |
1837 | netif_printk(qdev, probe, KERN_DEBUG, qdev->ndev, |
1838 | "No skb available, drop the packet.\n"); | |
c4e84bde RM |
1839 | return NULL; |
1840 | } | |
4055c7d4 RM |
1841 | pci_unmap_page(qdev->pdev, |
1842 | pci_unmap_addr(lbq_desc, | |
1843 | mapaddr), | |
1844 | pci_unmap_len(lbq_desc, maplen), | |
1845 | PCI_DMA_FROMDEVICE); | |
c4e84bde | 1846 | skb_reserve(skb, NET_IP_ALIGN); |
ae9540f7 JP |
1847 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1848 | "%d bytes of headers and data in large. Chain page to new skb and pull tail.\n", | |
1849 | length); | |
7c734359 RM |
1850 | skb_fill_page_desc(skb, 0, |
1851 | lbq_desc->p.pg_chunk.page, | |
1852 | lbq_desc->p.pg_chunk.offset, | |
1853 | length); | |
c4e84bde RM |
1854 | skb->len += length; |
1855 | skb->data_len += length; | |
1856 | skb->truesize += length; | |
1857 | length -= length; | |
c4e84bde RM |
1858 | __pskb_pull_tail(skb, |
1859 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ? | |
1860 | VLAN_ETH_HLEN : ETH_HLEN); | |
1861 | } | |
1862 | } else { | |
1863 | /* | |
1864 | * The data is in a chain of large buffers | |
1865 | * pointed to by a small buffer. We loop | |
1866 | * thru and chain them to the our small header | |
1867 | * buffer's skb. | |
1868 | * frags: There are 18 max frags and our small | |
1869 | * buffer will hold 32 of them. The thing is, | |
1870 | * we'll use 3 max for our 9000 byte jumbo | |
1871 | * frames. If the MTU goes up we could | |
1872 | * eventually be in trouble. | |
1873 | */ | |
7c734359 | 1874 | int size, i = 0; |
c4e84bde RM |
1875 | sbq_desc = ql_get_curr_sbuf(rx_ring); |
1876 | pci_unmap_single(qdev->pdev, | |
1877 | pci_unmap_addr(sbq_desc, mapaddr), | |
1878 | pci_unmap_len(sbq_desc, maplen), | |
1879 | PCI_DMA_FROMDEVICE); | |
1880 | if (!(ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS)) { | |
1881 | /* | |
1882 | * This is an non TCP/UDP IP frame, so | |
1883 | * the headers aren't split into a small | |
1884 | * buffer. We have to use the small buffer | |
1885 | * that contains our sg list as our skb to | |
1886 | * send upstairs. Copy the sg list here to | |
1887 | * a local buffer and use it to find the | |
1888 | * pages to chain. | |
1889 | */ | |
ae9540f7 JP |
1890 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1891 | "%d bytes of headers & data in chain of large.\n", | |
1892 | length); | |
c4e84bde | 1893 | skb = sbq_desc->p.skb; |
c4e84bde RM |
1894 | sbq_desc->p.skb = NULL; |
1895 | skb_reserve(skb, NET_IP_ALIGN); | |
c4e84bde RM |
1896 | } |
1897 | while (length > 0) { | |
7c734359 RM |
1898 | lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); |
1899 | size = (length < rx_ring->lbq_buf_size) ? length : | |
1900 | rx_ring->lbq_buf_size; | |
c4e84bde | 1901 | |
ae9540f7 JP |
1902 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1903 | "Adding page %d to skb for %d bytes.\n", | |
1904 | i, size); | |
7c734359 RM |
1905 | skb_fill_page_desc(skb, i, |
1906 | lbq_desc->p.pg_chunk.page, | |
1907 | lbq_desc->p.pg_chunk.offset, | |
1908 | size); | |
c4e84bde RM |
1909 | skb->len += size; |
1910 | skb->data_len += size; | |
1911 | skb->truesize += size; | |
1912 | length -= size; | |
c4e84bde RM |
1913 | i++; |
1914 | } | |
1915 | __pskb_pull_tail(skb, (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ? | |
1916 | VLAN_ETH_HLEN : ETH_HLEN); | |
1917 | } | |
1918 | return skb; | |
1919 | } | |
1920 | ||
1921 | /* Process an inbound completion from an rx ring. */ | |
4f848c0a | 1922 | static void ql_process_mac_split_rx_intr(struct ql_adapter *qdev, |
c4e84bde | 1923 | struct rx_ring *rx_ring, |
4f848c0a RM |
1924 | struct ib_mac_iocb_rsp *ib_mac_rsp, |
1925 | u16 vlan_id) | |
c4e84bde RM |
1926 | { |
1927 | struct net_device *ndev = qdev->ndev; | |
1928 | struct sk_buff *skb = NULL; | |
1929 | ||
1930 | QL_DUMP_IB_MAC_RSP(ib_mac_rsp); | |
1931 | ||
1932 | skb = ql_build_rx_skb(qdev, rx_ring, ib_mac_rsp); | |
1933 | if (unlikely(!skb)) { | |
ae9540f7 JP |
1934 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1935 | "No skb available, drop packet.\n"); | |
885ee398 | 1936 | rx_ring->rx_dropped++; |
c4e84bde RM |
1937 | return; |
1938 | } | |
1939 | ||
a32959cd RM |
1940 | /* Frame error, so drop the packet. */ |
1941 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { | |
ae9540f7 JP |
1942 | netif_err(qdev, drv, qdev->ndev, |
1943 | "Receive error, flags2 = 0x%x\n", ib_mac_rsp->flags2); | |
a32959cd | 1944 | dev_kfree_skb_any(skb); |
885ee398 | 1945 | rx_ring->rx_errors++; |
a32959cd RM |
1946 | return; |
1947 | } | |
ec33a491 RM |
1948 | |
1949 | /* The max framesize filter on this chip is set higher than | |
1950 | * MTU since FCoE uses 2k frames. | |
1951 | */ | |
1952 | if (skb->len > ndev->mtu + ETH_HLEN) { | |
1953 | dev_kfree_skb_any(skb); | |
885ee398 | 1954 | rx_ring->rx_dropped++; |
ec33a491 RM |
1955 | return; |
1956 | } | |
1957 | ||
9dfbbaa6 RM |
1958 | /* loopback self test for ethtool */ |
1959 | if (test_bit(QL_SELFTEST, &qdev->flags)) { | |
1960 | ql_check_lb_frame(qdev, skb); | |
1961 | dev_kfree_skb_any(skb); | |
1962 | return; | |
1963 | } | |
1964 | ||
c4e84bde RM |
1965 | prefetch(skb->data); |
1966 | skb->dev = ndev; | |
1967 | if (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) { | |
ae9540f7 JP |
1968 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, "%s Multicast.\n", |
1969 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1970 | IB_MAC_IOCB_RSP_M_HASH ? "Hash" : | |
1971 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1972 | IB_MAC_IOCB_RSP_M_REG ? "Registered" : | |
1973 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1974 | IB_MAC_IOCB_RSP_M_PROM ? "Promiscuous" : ""); | |
885ee398 | 1975 | rx_ring->rx_multicast++; |
c4e84bde RM |
1976 | } |
1977 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_P) { | |
ae9540f7 JP |
1978 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1979 | "Promiscuous Packet.\n"); | |
c4e84bde | 1980 | } |
d555f592 | 1981 | |
d555f592 RM |
1982 | skb->protocol = eth_type_trans(skb, ndev); |
1983 | skb->ip_summed = CHECKSUM_NONE; | |
1984 | ||
1985 | /* If rx checksum is on, and there are no | |
1986 | * csum or frame errors. | |
1987 | */ | |
1988 | if (qdev->rx_csum && | |
d555f592 RM |
1989 | !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK)) { |
1990 | /* TCP frame. */ | |
1991 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) { | |
ae9540f7 JP |
1992 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
1993 | "TCP checksum done!\n"); | |
d555f592 RM |
1994 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
1995 | } else if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && | |
1996 | (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) { | |
1997 | /* Unfragmented ipv4 UDP frame. */ | |
1998 | struct iphdr *iph = (struct iphdr *) skb->data; | |
1999 | if (!(iph->frag_off & | |
2000 | cpu_to_be16(IP_MF|IP_OFFSET))) { | |
2001 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
ae9540f7 JP |
2002 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2003 | "TCP checksum done!\n"); | |
d555f592 RM |
2004 | } |
2005 | } | |
c4e84bde | 2006 | } |
d555f592 | 2007 | |
885ee398 RM |
2008 | rx_ring->rx_packets++; |
2009 | rx_ring->rx_bytes += skb->len; | |
b2014ff8 | 2010 | skb_record_rx_queue(skb, rx_ring->cq_id); |
22bdd4f5 RM |
2011 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) { |
2012 | if (qdev->vlgrp && | |
2013 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) && | |
2014 | (vlan_id != 0)) | |
2015 | vlan_gro_receive(&rx_ring->napi, qdev->vlgrp, | |
2016 | vlan_id, skb); | |
2017 | else | |
2018 | napi_gro_receive(&rx_ring->napi, skb); | |
c4e84bde | 2019 | } else { |
22bdd4f5 RM |
2020 | if (qdev->vlgrp && |
2021 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) && | |
2022 | (vlan_id != 0)) | |
2023 | vlan_hwaccel_receive_skb(skb, qdev->vlgrp, vlan_id); | |
2024 | else | |
2025 | netif_receive_skb(skb); | |
c4e84bde | 2026 | } |
c4e84bde RM |
2027 | } |
2028 | ||
4f848c0a RM |
2029 | /* Process an inbound completion from an rx ring. */ |
2030 | static unsigned long ql_process_mac_rx_intr(struct ql_adapter *qdev, | |
2031 | struct rx_ring *rx_ring, | |
2032 | struct ib_mac_iocb_rsp *ib_mac_rsp) | |
2033 | { | |
2034 | u32 length = le32_to_cpu(ib_mac_rsp->data_len); | |
2035 | u16 vlan_id = (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ? | |
2036 | ((le16_to_cpu(ib_mac_rsp->vlan_id) & | |
2037 | IB_MAC_IOCB_RSP_VLAN_MASK)) : 0xffff; | |
2038 | ||
2039 | QL_DUMP_IB_MAC_RSP(ib_mac_rsp); | |
2040 | ||
2041 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HV) { | |
2042 | /* The data and headers are split into | |
2043 | * separate buffers. | |
2044 | */ | |
2045 | ql_process_mac_split_rx_intr(qdev, rx_ring, ib_mac_rsp, | |
2046 | vlan_id); | |
2047 | } else if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DS) { | |
2048 | /* The data fit in a single small buffer. | |
2049 | * Allocate a new skb, copy the data and | |
2050 | * return the buffer to the free pool. | |
2051 | */ | |
2052 | ql_process_mac_rx_skb(qdev, rx_ring, ib_mac_rsp, | |
2053 | length, vlan_id); | |
63526713 RM |
2054 | } else if ((ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) && |
2055 | !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK) && | |
2056 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T)) { | |
2057 | /* TCP packet in a page chunk that's been checksummed. | |
2058 | * Tack it on to our GRO skb and let it go. | |
2059 | */ | |
2060 | ql_process_mac_rx_gro_page(qdev, rx_ring, ib_mac_rsp, | |
2061 | length, vlan_id); | |
4f848c0a RM |
2062 | } else if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) { |
2063 | /* Non-TCP packet in a page chunk. Allocate an | |
2064 | * skb, tack it on frags, and send it up. | |
2065 | */ | |
2066 | ql_process_mac_rx_page(qdev, rx_ring, ib_mac_rsp, | |
2067 | length, vlan_id); | |
2068 | } else { | |
c0c56955 RM |
2069 | /* Non-TCP/UDP large frames that span multiple buffers |
2070 | * can be processed corrrectly by the split frame logic. | |
2071 | */ | |
2072 | ql_process_mac_split_rx_intr(qdev, rx_ring, ib_mac_rsp, | |
2073 | vlan_id); | |
4f848c0a RM |
2074 | } |
2075 | ||
2076 | return (unsigned long)length; | |
2077 | } | |
2078 | ||
c4e84bde RM |
2079 | /* Process an outbound completion from an rx ring. */ |
2080 | static void ql_process_mac_tx_intr(struct ql_adapter *qdev, | |
2081 | struct ob_mac_iocb_rsp *mac_rsp) | |
2082 | { | |
2083 | struct tx_ring *tx_ring; | |
2084 | struct tx_ring_desc *tx_ring_desc; | |
2085 | ||
2086 | QL_DUMP_OB_MAC_RSP(mac_rsp); | |
2087 | tx_ring = &qdev->tx_ring[mac_rsp->txq_idx]; | |
2088 | tx_ring_desc = &tx_ring->q[mac_rsp->tid]; | |
2089 | ql_unmap_send(qdev, tx_ring_desc, tx_ring_desc->map_cnt); | |
885ee398 RM |
2090 | tx_ring->tx_bytes += (tx_ring_desc->skb)->len; |
2091 | tx_ring->tx_packets++; | |
c4e84bde RM |
2092 | dev_kfree_skb(tx_ring_desc->skb); |
2093 | tx_ring_desc->skb = NULL; | |
2094 | ||
2095 | if (unlikely(mac_rsp->flags1 & (OB_MAC_IOCB_RSP_E | | |
2096 | OB_MAC_IOCB_RSP_S | | |
2097 | OB_MAC_IOCB_RSP_L | | |
2098 | OB_MAC_IOCB_RSP_P | OB_MAC_IOCB_RSP_B))) { | |
2099 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_E) { | |
ae9540f7 JP |
2100 | netif_warn(qdev, tx_done, qdev->ndev, |
2101 | "Total descriptor length did not match transfer length.\n"); | |
c4e84bde RM |
2102 | } |
2103 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_S) { | |
ae9540f7 JP |
2104 | netif_warn(qdev, tx_done, qdev->ndev, |
2105 | "Frame too short to be valid, not sent.\n"); | |
c4e84bde RM |
2106 | } |
2107 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_L) { | |
ae9540f7 JP |
2108 | netif_warn(qdev, tx_done, qdev->ndev, |
2109 | "Frame too long, but sent anyway.\n"); | |
c4e84bde RM |
2110 | } |
2111 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_B) { | |
ae9540f7 JP |
2112 | netif_warn(qdev, tx_done, qdev->ndev, |
2113 | "PCI backplane error. Frame not sent.\n"); | |
c4e84bde RM |
2114 | } |
2115 | } | |
2116 | atomic_inc(&tx_ring->tx_count); | |
2117 | } | |
2118 | ||
2119 | /* Fire up a handler to reset the MPI processor. */ | |
2120 | void ql_queue_fw_error(struct ql_adapter *qdev) | |
2121 | { | |
6a473308 | 2122 | ql_link_off(qdev); |
c4e84bde RM |
2123 | queue_delayed_work(qdev->workqueue, &qdev->mpi_reset_work, 0); |
2124 | } | |
2125 | ||
2126 | void ql_queue_asic_error(struct ql_adapter *qdev) | |
2127 | { | |
6a473308 | 2128 | ql_link_off(qdev); |
c4e84bde | 2129 | ql_disable_interrupts(qdev); |
6497b607 RM |
2130 | /* Clear adapter up bit to signal the recovery |
2131 | * process that it shouldn't kill the reset worker | |
2132 | * thread | |
2133 | */ | |
2134 | clear_bit(QL_ADAPTER_UP, &qdev->flags); | |
c4e84bde RM |
2135 | queue_delayed_work(qdev->workqueue, &qdev->asic_reset_work, 0); |
2136 | } | |
2137 | ||
2138 | static void ql_process_chip_ae_intr(struct ql_adapter *qdev, | |
2139 | struct ib_ae_iocb_rsp *ib_ae_rsp) | |
2140 | { | |
2141 | switch (ib_ae_rsp->event) { | |
2142 | case MGMT_ERR_EVENT: | |
ae9540f7 JP |
2143 | netif_err(qdev, rx_err, qdev->ndev, |
2144 | "Management Processor Fatal Error.\n"); | |
c4e84bde RM |
2145 | ql_queue_fw_error(qdev); |
2146 | return; | |
2147 | ||
2148 | case CAM_LOOKUP_ERR_EVENT: | |
ae9540f7 JP |
2149 | netif_err(qdev, link, qdev->ndev, |
2150 | "Multiple CAM hits lookup occurred.\n"); | |
2151 | netif_err(qdev, drv, qdev->ndev, | |
2152 | "This event shouldn't occur.\n"); | |
c4e84bde RM |
2153 | ql_queue_asic_error(qdev); |
2154 | return; | |
2155 | ||
2156 | case SOFT_ECC_ERROR_EVENT: | |
ae9540f7 JP |
2157 | netif_err(qdev, rx_err, qdev->ndev, |
2158 | "Soft ECC error detected.\n"); | |
c4e84bde RM |
2159 | ql_queue_asic_error(qdev); |
2160 | break; | |
2161 | ||
2162 | case PCI_ERR_ANON_BUF_RD: | |
ae9540f7 JP |
2163 | netif_err(qdev, rx_err, qdev->ndev, |
2164 | "PCI error occurred when reading anonymous buffers from rx_ring %d.\n", | |
2165 | ib_ae_rsp->q_id); | |
c4e84bde RM |
2166 | ql_queue_asic_error(qdev); |
2167 | break; | |
2168 | ||
2169 | default: | |
ae9540f7 JP |
2170 | netif_err(qdev, drv, qdev->ndev, "Unexpected event %d.\n", |
2171 | ib_ae_rsp->event); | |
c4e84bde RM |
2172 | ql_queue_asic_error(qdev); |
2173 | break; | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | static int ql_clean_outbound_rx_ring(struct rx_ring *rx_ring) | |
2178 | { | |
2179 | struct ql_adapter *qdev = rx_ring->qdev; | |
ba7cd3ba | 2180 | u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
2181 | struct ob_mac_iocb_rsp *net_rsp = NULL; |
2182 | int count = 0; | |
2183 | ||
1e213303 | 2184 | struct tx_ring *tx_ring; |
c4e84bde RM |
2185 | /* While there are entries in the completion queue. */ |
2186 | while (prod != rx_ring->cnsmr_idx) { | |
2187 | ||
ae9540f7 JP |
2188 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2189 | "cq_id = %d, prod = %d, cnsmr = %d.\n.", | |
2190 | rx_ring->cq_id, prod, rx_ring->cnsmr_idx); | |
c4e84bde RM |
2191 | |
2192 | net_rsp = (struct ob_mac_iocb_rsp *)rx_ring->curr_entry; | |
2193 | rmb(); | |
2194 | switch (net_rsp->opcode) { | |
2195 | ||
2196 | case OPCODE_OB_MAC_TSO_IOCB: | |
2197 | case OPCODE_OB_MAC_IOCB: | |
2198 | ql_process_mac_tx_intr(qdev, net_rsp); | |
2199 | break; | |
2200 | default: | |
ae9540f7 JP |
2201 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2202 | "Hit default case, not handled! dropping the packet, opcode = %x.\n", | |
2203 | net_rsp->opcode); | |
c4e84bde RM |
2204 | } |
2205 | count++; | |
2206 | ql_update_cq(rx_ring); | |
ba7cd3ba | 2207 | prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
2208 | } |
2209 | ql_write_cq_idx(rx_ring); | |
1e213303 RM |
2210 | tx_ring = &qdev->tx_ring[net_rsp->txq_idx]; |
2211 | if (__netif_subqueue_stopped(qdev->ndev, tx_ring->wq_id) && | |
2212 | net_rsp != NULL) { | |
c4e84bde RM |
2213 | if (atomic_read(&tx_ring->queue_stopped) && |
2214 | (atomic_read(&tx_ring->tx_count) > (tx_ring->wq_len / 4))) | |
2215 | /* | |
2216 | * The queue got stopped because the tx_ring was full. | |
2217 | * Wake it up, because it's now at least 25% empty. | |
2218 | */ | |
1e213303 | 2219 | netif_wake_subqueue(qdev->ndev, tx_ring->wq_id); |
c4e84bde RM |
2220 | } |
2221 | ||
2222 | return count; | |
2223 | } | |
2224 | ||
2225 | static int ql_clean_inbound_rx_ring(struct rx_ring *rx_ring, int budget) | |
2226 | { | |
2227 | struct ql_adapter *qdev = rx_ring->qdev; | |
ba7cd3ba | 2228 | u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
2229 | struct ql_net_rsp_iocb *net_rsp; |
2230 | int count = 0; | |
2231 | ||
2232 | /* While there are entries in the completion queue. */ | |
2233 | while (prod != rx_ring->cnsmr_idx) { | |
2234 | ||
ae9540f7 JP |
2235 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2236 | "cq_id = %d, prod = %d, cnsmr = %d.\n.", | |
2237 | rx_ring->cq_id, prod, rx_ring->cnsmr_idx); | |
c4e84bde RM |
2238 | |
2239 | net_rsp = rx_ring->curr_entry; | |
2240 | rmb(); | |
2241 | switch (net_rsp->opcode) { | |
2242 | case OPCODE_IB_MAC_IOCB: | |
2243 | ql_process_mac_rx_intr(qdev, rx_ring, | |
2244 | (struct ib_mac_iocb_rsp *) | |
2245 | net_rsp); | |
2246 | break; | |
2247 | ||
2248 | case OPCODE_IB_AE_IOCB: | |
2249 | ql_process_chip_ae_intr(qdev, (struct ib_ae_iocb_rsp *) | |
2250 | net_rsp); | |
2251 | break; | |
2252 | default: | |
ae9540f7 JP |
2253 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2254 | "Hit default case, not handled! dropping the packet, opcode = %x.\n", | |
2255 | net_rsp->opcode); | |
2256 | break; | |
c4e84bde RM |
2257 | } |
2258 | count++; | |
2259 | ql_update_cq(rx_ring); | |
ba7cd3ba | 2260 | prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
2261 | if (count == budget) |
2262 | break; | |
2263 | } | |
2264 | ql_update_buffer_queues(qdev, rx_ring); | |
2265 | ql_write_cq_idx(rx_ring); | |
2266 | return count; | |
2267 | } | |
2268 | ||
2269 | static int ql_napi_poll_msix(struct napi_struct *napi, int budget) | |
2270 | { | |
2271 | struct rx_ring *rx_ring = container_of(napi, struct rx_ring, napi); | |
2272 | struct ql_adapter *qdev = rx_ring->qdev; | |
39aa8165 RM |
2273 | struct rx_ring *trx_ring; |
2274 | int i, work_done = 0; | |
2275 | struct intr_context *ctx = &qdev->intr_context[rx_ring->cq_id]; | |
c4e84bde | 2276 | |
ae9540f7 JP |
2277 | netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev, |
2278 | "Enter, NAPI POLL cq_id = %d.\n", rx_ring->cq_id); | |
c4e84bde | 2279 | |
39aa8165 RM |
2280 | /* Service the TX rings first. They start |
2281 | * right after the RSS rings. */ | |
2282 | for (i = qdev->rss_ring_count; i < qdev->rx_ring_count; i++) { | |
2283 | trx_ring = &qdev->rx_ring[i]; | |
2284 | /* If this TX completion ring belongs to this vector and | |
2285 | * it's not empty then service it. | |
2286 | */ | |
2287 | if ((ctx->irq_mask & (1 << trx_ring->cq_id)) && | |
2288 | (ql_read_sh_reg(trx_ring->prod_idx_sh_reg) != | |
2289 | trx_ring->cnsmr_idx)) { | |
ae9540f7 JP |
2290 | netif_printk(qdev, intr, KERN_DEBUG, qdev->ndev, |
2291 | "%s: Servicing TX completion ring %d.\n", | |
2292 | __func__, trx_ring->cq_id); | |
39aa8165 RM |
2293 | ql_clean_outbound_rx_ring(trx_ring); |
2294 | } | |
2295 | } | |
2296 | ||
2297 | /* | |
2298 | * Now service the RSS ring if it's active. | |
2299 | */ | |
2300 | if (ql_read_sh_reg(rx_ring->prod_idx_sh_reg) != | |
2301 | rx_ring->cnsmr_idx) { | |
ae9540f7 JP |
2302 | netif_printk(qdev, intr, KERN_DEBUG, qdev->ndev, |
2303 | "%s: Servicing RX completion ring %d.\n", | |
2304 | __func__, rx_ring->cq_id); | |
39aa8165 RM |
2305 | work_done = ql_clean_inbound_rx_ring(rx_ring, budget); |
2306 | } | |
2307 | ||
c4e84bde | 2308 | if (work_done < budget) { |
22bdd4f5 | 2309 | napi_complete(napi); |
c4e84bde RM |
2310 | ql_enable_completion_interrupt(qdev, rx_ring->irq); |
2311 | } | |
2312 | return work_done; | |
2313 | } | |
2314 | ||
01e6b953 | 2315 | static void qlge_vlan_rx_register(struct net_device *ndev, struct vlan_group *grp) |
c4e84bde RM |
2316 | { |
2317 | struct ql_adapter *qdev = netdev_priv(ndev); | |
2318 | ||
2319 | qdev->vlgrp = grp; | |
2320 | if (grp) { | |
ae9540f7 JP |
2321 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
2322 | "Turning on VLAN in NIC_RCV_CFG.\n"); | |
c4e84bde RM |
2323 | ql_write32(qdev, NIC_RCV_CFG, NIC_RCV_CFG_VLAN_MASK | |
2324 | NIC_RCV_CFG_VLAN_MATCH_AND_NON); | |
2325 | } else { | |
ae9540f7 JP |
2326 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
2327 | "Turning off VLAN in NIC_RCV_CFG.\n"); | |
c4e84bde RM |
2328 | ql_write32(qdev, NIC_RCV_CFG, NIC_RCV_CFG_VLAN_MASK); |
2329 | } | |
2330 | } | |
2331 | ||
01e6b953 | 2332 | static void qlge_vlan_rx_add_vid(struct net_device *ndev, u16 vid) |
c4e84bde RM |
2333 | { |
2334 | struct ql_adapter *qdev = netdev_priv(ndev); | |
2335 | u32 enable_bit = MAC_ADDR_E; | |
cc288f54 | 2336 | int status; |
c4e84bde | 2337 | |
cc288f54 RM |
2338 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
2339 | if (status) | |
2340 | return; | |
c4e84bde RM |
2341 | if (ql_set_mac_addr_reg |
2342 | (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { | |
ae9540f7 JP |
2343 | netif_err(qdev, ifup, qdev->ndev, |
2344 | "Failed to init vlan address.\n"); | |
c4e84bde | 2345 | } |
cc288f54 | 2346 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
2347 | } |
2348 | ||
01e6b953 | 2349 | static void qlge_vlan_rx_kill_vid(struct net_device *ndev, u16 vid) |
c4e84bde RM |
2350 | { |
2351 | struct ql_adapter *qdev = netdev_priv(ndev); | |
2352 | u32 enable_bit = 0; | |
cc288f54 RM |
2353 | int status; |
2354 | ||
2355 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); | |
2356 | if (status) | |
2357 | return; | |
c4e84bde | 2358 | |
c4e84bde RM |
2359 | if (ql_set_mac_addr_reg |
2360 | (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { | |
ae9540f7 JP |
2361 | netif_err(qdev, ifup, qdev->ndev, |
2362 | "Failed to clear vlan address.\n"); | |
c4e84bde | 2363 | } |
cc288f54 | 2364 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
2365 | |
2366 | } | |
2367 | ||
c4e84bde RM |
2368 | /* MSI-X Multiple Vector Interrupt Handler for inbound completions. */ |
2369 | static irqreturn_t qlge_msix_rx_isr(int irq, void *dev_id) | |
2370 | { | |
2371 | struct rx_ring *rx_ring = dev_id; | |
288379f0 | 2372 | napi_schedule(&rx_ring->napi); |
c4e84bde RM |
2373 | return IRQ_HANDLED; |
2374 | } | |
2375 | ||
c4e84bde RM |
2376 | /* This handles a fatal error, MPI activity, and the default |
2377 | * rx_ring in an MSI-X multiple vector environment. | |
2378 | * In MSI/Legacy environment it also process the rest of | |
2379 | * the rx_rings. | |
2380 | */ | |
2381 | static irqreturn_t qlge_isr(int irq, void *dev_id) | |
2382 | { | |
2383 | struct rx_ring *rx_ring = dev_id; | |
2384 | struct ql_adapter *qdev = rx_ring->qdev; | |
2385 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
2386 | u32 var; | |
c4e84bde RM |
2387 | int work_done = 0; |
2388 | ||
bb0d215c RM |
2389 | spin_lock(&qdev->hw_lock); |
2390 | if (atomic_read(&qdev->intr_context[0].irq_cnt)) { | |
ae9540f7 JP |
2391 | netif_printk(qdev, intr, KERN_DEBUG, qdev->ndev, |
2392 | "Shared Interrupt, Not ours!\n"); | |
bb0d215c RM |
2393 | spin_unlock(&qdev->hw_lock); |
2394 | return IRQ_NONE; | |
c4e84bde | 2395 | } |
bb0d215c | 2396 | spin_unlock(&qdev->hw_lock); |
c4e84bde | 2397 | |
bb0d215c | 2398 | var = ql_disable_completion_interrupt(qdev, intr_context->intr); |
c4e84bde RM |
2399 | |
2400 | /* | |
2401 | * Check for fatal error. | |
2402 | */ | |
2403 | if (var & STS_FE) { | |
2404 | ql_queue_asic_error(qdev); | |
ae9540f7 JP |
2405 | netif_err(qdev, intr, qdev->ndev, |
2406 | "Got fatal error, STS = %x.\n", var); | |
c4e84bde | 2407 | var = ql_read32(qdev, ERR_STS); |
ae9540f7 JP |
2408 | netif_err(qdev, intr, qdev->ndev, |
2409 | "Resetting chip. Error Status Register = 0x%x\n", var); | |
c4e84bde RM |
2410 | return IRQ_HANDLED; |
2411 | } | |
2412 | ||
2413 | /* | |
2414 | * Check MPI processor activity. | |
2415 | */ | |
5ee22a5a RM |
2416 | if ((var & STS_PI) && |
2417 | (ql_read32(qdev, INTR_MASK) & INTR_MASK_PI)) { | |
c4e84bde RM |
2418 | /* |
2419 | * We've got an async event or mailbox completion. | |
2420 | * Handle it and clear the source of the interrupt. | |
2421 | */ | |
ae9540f7 JP |
2422 | netif_err(qdev, intr, qdev->ndev, |
2423 | "Got MPI processor interrupt.\n"); | |
c4e84bde | 2424 | ql_disable_completion_interrupt(qdev, intr_context->intr); |
5ee22a5a RM |
2425 | ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16)); |
2426 | queue_delayed_work_on(smp_processor_id(), | |
2427 | qdev->workqueue, &qdev->mpi_work, 0); | |
c4e84bde RM |
2428 | work_done++; |
2429 | } | |
2430 | ||
2431 | /* | |
39aa8165 RM |
2432 | * Get the bit-mask that shows the active queues for this |
2433 | * pass. Compare it to the queues that this irq services | |
2434 | * and call napi if there's a match. | |
c4e84bde | 2435 | */ |
39aa8165 RM |
2436 | var = ql_read32(qdev, ISR1); |
2437 | if (var & intr_context->irq_mask) { | |
ae9540f7 JP |
2438 | netif_info(qdev, intr, qdev->ndev, |
2439 | "Waking handler for rx_ring[0].\n"); | |
39aa8165 | 2440 | ql_disable_completion_interrupt(qdev, intr_context->intr); |
32a5b2a0 RM |
2441 | napi_schedule(&rx_ring->napi); |
2442 | work_done++; | |
2443 | } | |
bb0d215c | 2444 | ql_enable_completion_interrupt(qdev, intr_context->intr); |
c4e84bde RM |
2445 | return work_done ? IRQ_HANDLED : IRQ_NONE; |
2446 | } | |
2447 | ||
2448 | static int ql_tso(struct sk_buff *skb, struct ob_mac_tso_iocb_req *mac_iocb_ptr) | |
2449 | { | |
2450 | ||
2451 | if (skb_is_gso(skb)) { | |
2452 | int err; | |
2453 | if (skb_header_cloned(skb)) { | |
2454 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
2455 | if (err) | |
2456 | return err; | |
2457 | } | |
2458 | ||
2459 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_TSO_IOCB; | |
2460 | mac_iocb_ptr->flags3 |= OB_MAC_TSO_IOCB_IC; | |
2461 | mac_iocb_ptr->frame_len = cpu_to_le32((u32) skb->len); | |
2462 | mac_iocb_ptr->total_hdrs_len = | |
2463 | cpu_to_le16(skb_transport_offset(skb) + tcp_hdrlen(skb)); | |
2464 | mac_iocb_ptr->net_trans_offset = | |
2465 | cpu_to_le16(skb_network_offset(skb) | | |
2466 | skb_transport_offset(skb) | |
2467 | << OB_MAC_TRANSPORT_HDR_SHIFT); | |
2468 | mac_iocb_ptr->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
2469 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_LSO; | |
2470 | if (likely(skb->protocol == htons(ETH_P_IP))) { | |
2471 | struct iphdr *iph = ip_hdr(skb); | |
2472 | iph->check = 0; | |
2473 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP4; | |
2474 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
2475 | iph->daddr, 0, | |
2476 | IPPROTO_TCP, | |
2477 | 0); | |
2478 | } else if (skb->protocol == htons(ETH_P_IPV6)) { | |
2479 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP6; | |
2480 | tcp_hdr(skb)->check = | |
2481 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
2482 | &ipv6_hdr(skb)->daddr, | |
2483 | 0, IPPROTO_TCP, 0); | |
2484 | } | |
2485 | return 1; | |
2486 | } | |
2487 | return 0; | |
2488 | } | |
2489 | ||
2490 | static void ql_hw_csum_setup(struct sk_buff *skb, | |
2491 | struct ob_mac_tso_iocb_req *mac_iocb_ptr) | |
2492 | { | |
2493 | int len; | |
2494 | struct iphdr *iph = ip_hdr(skb); | |
fd2df4f7 | 2495 | __sum16 *check; |
c4e84bde RM |
2496 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_TSO_IOCB; |
2497 | mac_iocb_ptr->frame_len = cpu_to_le32((u32) skb->len); | |
2498 | mac_iocb_ptr->net_trans_offset = | |
2499 | cpu_to_le16(skb_network_offset(skb) | | |
2500 | skb_transport_offset(skb) << OB_MAC_TRANSPORT_HDR_SHIFT); | |
2501 | ||
2502 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP4; | |
2503 | len = (ntohs(iph->tot_len) - (iph->ihl << 2)); | |
2504 | if (likely(iph->protocol == IPPROTO_TCP)) { | |
2505 | check = &(tcp_hdr(skb)->check); | |
2506 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_TC; | |
2507 | mac_iocb_ptr->total_hdrs_len = | |
2508 | cpu_to_le16(skb_transport_offset(skb) + | |
2509 | (tcp_hdr(skb)->doff << 2)); | |
2510 | } else { | |
2511 | check = &(udp_hdr(skb)->check); | |
2512 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_UC; | |
2513 | mac_iocb_ptr->total_hdrs_len = | |
2514 | cpu_to_le16(skb_transport_offset(skb) + | |
2515 | sizeof(struct udphdr)); | |
2516 | } | |
2517 | *check = ~csum_tcpudp_magic(iph->saddr, | |
2518 | iph->daddr, len, iph->protocol, 0); | |
2519 | } | |
2520 | ||
61357325 | 2521 | static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev) |
c4e84bde RM |
2522 | { |
2523 | struct tx_ring_desc *tx_ring_desc; | |
2524 | struct ob_mac_iocb_req *mac_iocb_ptr; | |
2525 | struct ql_adapter *qdev = netdev_priv(ndev); | |
2526 | int tso; | |
2527 | struct tx_ring *tx_ring; | |
1e213303 | 2528 | u32 tx_ring_idx = (u32) skb->queue_mapping; |
c4e84bde RM |
2529 | |
2530 | tx_ring = &qdev->tx_ring[tx_ring_idx]; | |
2531 | ||
74c50b4b RM |
2532 | if (skb_padto(skb, ETH_ZLEN)) |
2533 | return NETDEV_TX_OK; | |
2534 | ||
c4e84bde | 2535 | if (unlikely(atomic_read(&tx_ring->tx_count) < 2)) { |
ae9540f7 JP |
2536 | netif_info(qdev, tx_queued, qdev->ndev, |
2537 | "%s: shutting down tx queue %d du to lack of resources.\n", | |
2538 | __func__, tx_ring_idx); | |
1e213303 | 2539 | netif_stop_subqueue(ndev, tx_ring->wq_id); |
c4e84bde | 2540 | atomic_inc(&tx_ring->queue_stopped); |
885ee398 | 2541 | tx_ring->tx_errors++; |
c4e84bde RM |
2542 | return NETDEV_TX_BUSY; |
2543 | } | |
2544 | tx_ring_desc = &tx_ring->q[tx_ring->prod_idx]; | |
2545 | mac_iocb_ptr = tx_ring_desc->queue_entry; | |
e332471c | 2546 | memset((void *)mac_iocb_ptr, 0, sizeof(*mac_iocb_ptr)); |
c4e84bde RM |
2547 | |
2548 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_IOCB; | |
2549 | mac_iocb_ptr->tid = tx_ring_desc->index; | |
2550 | /* We use the upper 32-bits to store the tx queue for this IO. | |
2551 | * When we get the completion we can use it to establish the context. | |
2552 | */ | |
2553 | mac_iocb_ptr->txq_idx = tx_ring_idx; | |
2554 | tx_ring_desc->skb = skb; | |
2555 | ||
2556 | mac_iocb_ptr->frame_len = cpu_to_le16((u16) skb->len); | |
2557 | ||
2558 | if (qdev->vlgrp && vlan_tx_tag_present(skb)) { | |
ae9540f7 JP |
2559 | netif_printk(qdev, tx_queued, KERN_DEBUG, qdev->ndev, |
2560 | "Adding a vlan tag %d.\n", vlan_tx_tag_get(skb)); | |
c4e84bde RM |
2561 | mac_iocb_ptr->flags3 |= OB_MAC_IOCB_V; |
2562 | mac_iocb_ptr->vlan_tci = cpu_to_le16(vlan_tx_tag_get(skb)); | |
2563 | } | |
2564 | tso = ql_tso(skb, (struct ob_mac_tso_iocb_req *)mac_iocb_ptr); | |
2565 | if (tso < 0) { | |
2566 | dev_kfree_skb_any(skb); | |
2567 | return NETDEV_TX_OK; | |
2568 | } else if (unlikely(!tso) && (skb->ip_summed == CHECKSUM_PARTIAL)) { | |
2569 | ql_hw_csum_setup(skb, | |
2570 | (struct ob_mac_tso_iocb_req *)mac_iocb_ptr); | |
2571 | } | |
0d979f74 RM |
2572 | if (ql_map_send(qdev, mac_iocb_ptr, skb, tx_ring_desc) != |
2573 | NETDEV_TX_OK) { | |
ae9540f7 JP |
2574 | netif_err(qdev, tx_queued, qdev->ndev, |
2575 | "Could not map the segments.\n"); | |
885ee398 | 2576 | tx_ring->tx_errors++; |
0d979f74 RM |
2577 | return NETDEV_TX_BUSY; |
2578 | } | |
c4e84bde RM |
2579 | QL_DUMP_OB_MAC_IOCB(mac_iocb_ptr); |
2580 | tx_ring->prod_idx++; | |
2581 | if (tx_ring->prod_idx == tx_ring->wq_len) | |
2582 | tx_ring->prod_idx = 0; | |
2583 | wmb(); | |
2584 | ||
2585 | ql_write_db_reg(tx_ring->prod_idx, tx_ring->prod_idx_db_reg); | |
ae9540f7 JP |
2586 | netif_printk(qdev, tx_queued, KERN_DEBUG, qdev->ndev, |
2587 | "tx queued, slot %d, len %d\n", | |
2588 | tx_ring->prod_idx, skb->len); | |
c4e84bde RM |
2589 | |
2590 | atomic_dec(&tx_ring->tx_count); | |
2591 | return NETDEV_TX_OK; | |
2592 | } | |
2593 | ||
9dfbbaa6 | 2594 | |
c4e84bde RM |
2595 | static void ql_free_shadow_space(struct ql_adapter *qdev) |
2596 | { | |
2597 | if (qdev->rx_ring_shadow_reg_area) { | |
2598 | pci_free_consistent(qdev->pdev, | |
2599 | PAGE_SIZE, | |
2600 | qdev->rx_ring_shadow_reg_area, | |
2601 | qdev->rx_ring_shadow_reg_dma); | |
2602 | qdev->rx_ring_shadow_reg_area = NULL; | |
2603 | } | |
2604 | if (qdev->tx_ring_shadow_reg_area) { | |
2605 | pci_free_consistent(qdev->pdev, | |
2606 | PAGE_SIZE, | |
2607 | qdev->tx_ring_shadow_reg_area, | |
2608 | qdev->tx_ring_shadow_reg_dma); | |
2609 | qdev->tx_ring_shadow_reg_area = NULL; | |
2610 | } | |
2611 | } | |
2612 | ||
2613 | static int ql_alloc_shadow_space(struct ql_adapter *qdev) | |
2614 | { | |
2615 | qdev->rx_ring_shadow_reg_area = | |
2616 | pci_alloc_consistent(qdev->pdev, | |
2617 | PAGE_SIZE, &qdev->rx_ring_shadow_reg_dma); | |
2618 | if (qdev->rx_ring_shadow_reg_area == NULL) { | |
ae9540f7 JP |
2619 | netif_err(qdev, ifup, qdev->ndev, |
2620 | "Allocation of RX shadow space failed.\n"); | |
c4e84bde RM |
2621 | return -ENOMEM; |
2622 | } | |
b25215d0 | 2623 | memset(qdev->rx_ring_shadow_reg_area, 0, PAGE_SIZE); |
c4e84bde RM |
2624 | qdev->tx_ring_shadow_reg_area = |
2625 | pci_alloc_consistent(qdev->pdev, PAGE_SIZE, | |
2626 | &qdev->tx_ring_shadow_reg_dma); | |
2627 | if (qdev->tx_ring_shadow_reg_area == NULL) { | |
ae9540f7 JP |
2628 | netif_err(qdev, ifup, qdev->ndev, |
2629 | "Allocation of TX shadow space failed.\n"); | |
c4e84bde RM |
2630 | goto err_wqp_sh_area; |
2631 | } | |
b25215d0 | 2632 | memset(qdev->tx_ring_shadow_reg_area, 0, PAGE_SIZE); |
c4e84bde RM |
2633 | return 0; |
2634 | ||
2635 | err_wqp_sh_area: | |
2636 | pci_free_consistent(qdev->pdev, | |
2637 | PAGE_SIZE, | |
2638 | qdev->rx_ring_shadow_reg_area, | |
2639 | qdev->rx_ring_shadow_reg_dma); | |
2640 | return -ENOMEM; | |
2641 | } | |
2642 | ||
2643 | static void ql_init_tx_ring(struct ql_adapter *qdev, struct tx_ring *tx_ring) | |
2644 | { | |
2645 | struct tx_ring_desc *tx_ring_desc; | |
2646 | int i; | |
2647 | struct ob_mac_iocb_req *mac_iocb_ptr; | |
2648 | ||
2649 | mac_iocb_ptr = tx_ring->wq_base; | |
2650 | tx_ring_desc = tx_ring->q; | |
2651 | for (i = 0; i < tx_ring->wq_len; i++) { | |
2652 | tx_ring_desc->index = i; | |
2653 | tx_ring_desc->skb = NULL; | |
2654 | tx_ring_desc->queue_entry = mac_iocb_ptr; | |
2655 | mac_iocb_ptr++; | |
2656 | tx_ring_desc++; | |
2657 | } | |
2658 | atomic_set(&tx_ring->tx_count, tx_ring->wq_len); | |
2659 | atomic_set(&tx_ring->queue_stopped, 0); | |
2660 | } | |
2661 | ||
2662 | static void ql_free_tx_resources(struct ql_adapter *qdev, | |
2663 | struct tx_ring *tx_ring) | |
2664 | { | |
2665 | if (tx_ring->wq_base) { | |
2666 | pci_free_consistent(qdev->pdev, tx_ring->wq_size, | |
2667 | tx_ring->wq_base, tx_ring->wq_base_dma); | |
2668 | tx_ring->wq_base = NULL; | |
2669 | } | |
2670 | kfree(tx_ring->q); | |
2671 | tx_ring->q = NULL; | |
2672 | } | |
2673 | ||
2674 | static int ql_alloc_tx_resources(struct ql_adapter *qdev, | |
2675 | struct tx_ring *tx_ring) | |
2676 | { | |
2677 | tx_ring->wq_base = | |
2678 | pci_alloc_consistent(qdev->pdev, tx_ring->wq_size, | |
2679 | &tx_ring->wq_base_dma); | |
2680 | ||
8e95a202 JP |
2681 | if ((tx_ring->wq_base == NULL) || |
2682 | tx_ring->wq_base_dma & WQ_ADDR_ALIGN) { | |
ae9540f7 | 2683 | netif_err(qdev, ifup, qdev->ndev, "tx_ring alloc failed.\n"); |
c4e84bde RM |
2684 | return -ENOMEM; |
2685 | } | |
2686 | tx_ring->q = | |
2687 | kmalloc(tx_ring->wq_len * sizeof(struct tx_ring_desc), GFP_KERNEL); | |
2688 | if (tx_ring->q == NULL) | |
2689 | goto err; | |
2690 | ||
2691 | return 0; | |
2692 | err: | |
2693 | pci_free_consistent(qdev->pdev, tx_ring->wq_size, | |
2694 | tx_ring->wq_base, tx_ring->wq_base_dma); | |
2695 | return -ENOMEM; | |
2696 | } | |
2697 | ||
8668ae92 | 2698 | static void ql_free_lbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring) |
c4e84bde | 2699 | { |
c4e84bde RM |
2700 | struct bq_desc *lbq_desc; |
2701 | ||
7c734359 RM |
2702 | uint32_t curr_idx, clean_idx; |
2703 | ||
2704 | curr_idx = rx_ring->lbq_curr_idx; | |
2705 | clean_idx = rx_ring->lbq_clean_idx; | |
2706 | while (curr_idx != clean_idx) { | |
2707 | lbq_desc = &rx_ring->lbq[curr_idx]; | |
2708 | ||
2709 | if (lbq_desc->p.pg_chunk.last_flag) { | |
c4e84bde | 2710 | pci_unmap_page(qdev->pdev, |
7c734359 RM |
2711 | lbq_desc->p.pg_chunk.map, |
2712 | ql_lbq_block_size(qdev), | |
c4e84bde | 2713 | PCI_DMA_FROMDEVICE); |
7c734359 | 2714 | lbq_desc->p.pg_chunk.last_flag = 0; |
c4e84bde | 2715 | } |
7c734359 RM |
2716 | |
2717 | put_page(lbq_desc->p.pg_chunk.page); | |
2718 | lbq_desc->p.pg_chunk.page = NULL; | |
2719 | ||
2720 | if (++curr_idx == rx_ring->lbq_len) | |
2721 | curr_idx = 0; | |
2722 | ||
c4e84bde RM |
2723 | } |
2724 | } | |
2725 | ||
8668ae92 | 2726 | static void ql_free_sbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring) |
c4e84bde RM |
2727 | { |
2728 | int i; | |
2729 | struct bq_desc *sbq_desc; | |
2730 | ||
2731 | for (i = 0; i < rx_ring->sbq_len; i++) { | |
2732 | sbq_desc = &rx_ring->sbq[i]; | |
2733 | if (sbq_desc == NULL) { | |
ae9540f7 JP |
2734 | netif_err(qdev, ifup, qdev->ndev, |
2735 | "sbq_desc %d is NULL.\n", i); | |
c4e84bde RM |
2736 | return; |
2737 | } | |
2738 | if (sbq_desc->p.skb) { | |
2739 | pci_unmap_single(qdev->pdev, | |
2740 | pci_unmap_addr(sbq_desc, mapaddr), | |
2741 | pci_unmap_len(sbq_desc, maplen), | |
2742 | PCI_DMA_FROMDEVICE); | |
2743 | dev_kfree_skb(sbq_desc->p.skb); | |
2744 | sbq_desc->p.skb = NULL; | |
2745 | } | |
c4e84bde RM |
2746 | } |
2747 | } | |
2748 | ||
4545a3f2 RM |
2749 | /* Free all large and small rx buffers associated |
2750 | * with the completion queues for this device. | |
2751 | */ | |
2752 | static void ql_free_rx_buffers(struct ql_adapter *qdev) | |
2753 | { | |
2754 | int i; | |
2755 | struct rx_ring *rx_ring; | |
2756 | ||
2757 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2758 | rx_ring = &qdev->rx_ring[i]; | |
2759 | if (rx_ring->lbq) | |
2760 | ql_free_lbq_buffers(qdev, rx_ring); | |
2761 | if (rx_ring->sbq) | |
2762 | ql_free_sbq_buffers(qdev, rx_ring); | |
2763 | } | |
2764 | } | |
2765 | ||
2766 | static void ql_alloc_rx_buffers(struct ql_adapter *qdev) | |
2767 | { | |
2768 | struct rx_ring *rx_ring; | |
2769 | int i; | |
2770 | ||
2771 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2772 | rx_ring = &qdev->rx_ring[i]; | |
2773 | if (rx_ring->type != TX_Q) | |
2774 | ql_update_buffer_queues(qdev, rx_ring); | |
2775 | } | |
2776 | } | |
2777 | ||
2778 | static void ql_init_lbq_ring(struct ql_adapter *qdev, | |
2779 | struct rx_ring *rx_ring) | |
2780 | { | |
2781 | int i; | |
2782 | struct bq_desc *lbq_desc; | |
2783 | __le64 *bq = rx_ring->lbq_base; | |
2784 | ||
2785 | memset(rx_ring->lbq, 0, rx_ring->lbq_len * sizeof(struct bq_desc)); | |
2786 | for (i = 0; i < rx_ring->lbq_len; i++) { | |
2787 | lbq_desc = &rx_ring->lbq[i]; | |
2788 | memset(lbq_desc, 0, sizeof(*lbq_desc)); | |
2789 | lbq_desc->index = i; | |
2790 | lbq_desc->addr = bq; | |
2791 | bq++; | |
2792 | } | |
2793 | } | |
2794 | ||
2795 | static void ql_init_sbq_ring(struct ql_adapter *qdev, | |
c4e84bde RM |
2796 | struct rx_ring *rx_ring) |
2797 | { | |
2798 | int i; | |
2799 | struct bq_desc *sbq_desc; | |
2c9a0d41 | 2800 | __le64 *bq = rx_ring->sbq_base; |
c4e84bde | 2801 | |
4545a3f2 | 2802 | memset(rx_ring->sbq, 0, rx_ring->sbq_len * sizeof(struct bq_desc)); |
c4e84bde RM |
2803 | for (i = 0; i < rx_ring->sbq_len; i++) { |
2804 | sbq_desc = &rx_ring->sbq[i]; | |
4545a3f2 | 2805 | memset(sbq_desc, 0, sizeof(*sbq_desc)); |
c4e84bde | 2806 | sbq_desc->index = i; |
2c9a0d41 | 2807 | sbq_desc->addr = bq; |
c4e84bde RM |
2808 | bq++; |
2809 | } | |
c4e84bde RM |
2810 | } |
2811 | ||
2812 | static void ql_free_rx_resources(struct ql_adapter *qdev, | |
2813 | struct rx_ring *rx_ring) | |
2814 | { | |
c4e84bde RM |
2815 | /* Free the small buffer queue. */ |
2816 | if (rx_ring->sbq_base) { | |
2817 | pci_free_consistent(qdev->pdev, | |
2818 | rx_ring->sbq_size, | |
2819 | rx_ring->sbq_base, rx_ring->sbq_base_dma); | |
2820 | rx_ring->sbq_base = NULL; | |
2821 | } | |
2822 | ||
2823 | /* Free the small buffer queue control blocks. */ | |
2824 | kfree(rx_ring->sbq); | |
2825 | rx_ring->sbq = NULL; | |
2826 | ||
2827 | /* Free the large buffer queue. */ | |
2828 | if (rx_ring->lbq_base) { | |
2829 | pci_free_consistent(qdev->pdev, | |
2830 | rx_ring->lbq_size, | |
2831 | rx_ring->lbq_base, rx_ring->lbq_base_dma); | |
2832 | rx_ring->lbq_base = NULL; | |
2833 | } | |
2834 | ||
2835 | /* Free the large buffer queue control blocks. */ | |
2836 | kfree(rx_ring->lbq); | |
2837 | rx_ring->lbq = NULL; | |
2838 | ||
2839 | /* Free the rx queue. */ | |
2840 | if (rx_ring->cq_base) { | |
2841 | pci_free_consistent(qdev->pdev, | |
2842 | rx_ring->cq_size, | |
2843 | rx_ring->cq_base, rx_ring->cq_base_dma); | |
2844 | rx_ring->cq_base = NULL; | |
2845 | } | |
2846 | } | |
2847 | ||
2848 | /* Allocate queues and buffers for this completions queue based | |
2849 | * on the values in the parameter structure. */ | |
2850 | static int ql_alloc_rx_resources(struct ql_adapter *qdev, | |
2851 | struct rx_ring *rx_ring) | |
2852 | { | |
2853 | ||
2854 | /* | |
2855 | * Allocate the completion queue for this rx_ring. | |
2856 | */ | |
2857 | rx_ring->cq_base = | |
2858 | pci_alloc_consistent(qdev->pdev, rx_ring->cq_size, | |
2859 | &rx_ring->cq_base_dma); | |
2860 | ||
2861 | if (rx_ring->cq_base == NULL) { | |
ae9540f7 | 2862 | netif_err(qdev, ifup, qdev->ndev, "rx_ring alloc failed.\n"); |
c4e84bde RM |
2863 | return -ENOMEM; |
2864 | } | |
2865 | ||
2866 | if (rx_ring->sbq_len) { | |
2867 | /* | |
2868 | * Allocate small buffer queue. | |
2869 | */ | |
2870 | rx_ring->sbq_base = | |
2871 | pci_alloc_consistent(qdev->pdev, rx_ring->sbq_size, | |
2872 | &rx_ring->sbq_base_dma); | |
2873 | ||
2874 | if (rx_ring->sbq_base == NULL) { | |
ae9540f7 JP |
2875 | netif_err(qdev, ifup, qdev->ndev, |
2876 | "Small buffer queue allocation failed.\n"); | |
c4e84bde RM |
2877 | goto err_mem; |
2878 | } | |
2879 | ||
2880 | /* | |
2881 | * Allocate small buffer queue control blocks. | |
2882 | */ | |
2883 | rx_ring->sbq = | |
2884 | kmalloc(rx_ring->sbq_len * sizeof(struct bq_desc), | |
2885 | GFP_KERNEL); | |
2886 | if (rx_ring->sbq == NULL) { | |
ae9540f7 JP |
2887 | netif_err(qdev, ifup, qdev->ndev, |
2888 | "Small buffer queue control block allocation failed.\n"); | |
c4e84bde RM |
2889 | goto err_mem; |
2890 | } | |
2891 | ||
4545a3f2 | 2892 | ql_init_sbq_ring(qdev, rx_ring); |
c4e84bde RM |
2893 | } |
2894 | ||
2895 | if (rx_ring->lbq_len) { | |
2896 | /* | |
2897 | * Allocate large buffer queue. | |
2898 | */ | |
2899 | rx_ring->lbq_base = | |
2900 | pci_alloc_consistent(qdev->pdev, rx_ring->lbq_size, | |
2901 | &rx_ring->lbq_base_dma); | |
2902 | ||
2903 | if (rx_ring->lbq_base == NULL) { | |
ae9540f7 JP |
2904 | netif_err(qdev, ifup, qdev->ndev, |
2905 | "Large buffer queue allocation failed.\n"); | |
c4e84bde RM |
2906 | goto err_mem; |
2907 | } | |
2908 | /* | |
2909 | * Allocate large buffer queue control blocks. | |
2910 | */ | |
2911 | rx_ring->lbq = | |
2912 | kmalloc(rx_ring->lbq_len * sizeof(struct bq_desc), | |
2913 | GFP_KERNEL); | |
2914 | if (rx_ring->lbq == NULL) { | |
ae9540f7 JP |
2915 | netif_err(qdev, ifup, qdev->ndev, |
2916 | "Large buffer queue control block allocation failed.\n"); | |
c4e84bde RM |
2917 | goto err_mem; |
2918 | } | |
2919 | ||
4545a3f2 | 2920 | ql_init_lbq_ring(qdev, rx_ring); |
c4e84bde RM |
2921 | } |
2922 | ||
2923 | return 0; | |
2924 | ||
2925 | err_mem: | |
2926 | ql_free_rx_resources(qdev, rx_ring); | |
2927 | return -ENOMEM; | |
2928 | } | |
2929 | ||
2930 | static void ql_tx_ring_clean(struct ql_adapter *qdev) | |
2931 | { | |
2932 | struct tx_ring *tx_ring; | |
2933 | struct tx_ring_desc *tx_ring_desc; | |
2934 | int i, j; | |
2935 | ||
2936 | /* | |
2937 | * Loop through all queues and free | |
2938 | * any resources. | |
2939 | */ | |
2940 | for (j = 0; j < qdev->tx_ring_count; j++) { | |
2941 | tx_ring = &qdev->tx_ring[j]; | |
2942 | for (i = 0; i < tx_ring->wq_len; i++) { | |
2943 | tx_ring_desc = &tx_ring->q[i]; | |
2944 | if (tx_ring_desc && tx_ring_desc->skb) { | |
ae9540f7 JP |
2945 | netif_err(qdev, ifdown, qdev->ndev, |
2946 | "Freeing lost SKB %p, from queue %d, index %d.\n", | |
2947 | tx_ring_desc->skb, j, | |
2948 | tx_ring_desc->index); | |
c4e84bde RM |
2949 | ql_unmap_send(qdev, tx_ring_desc, |
2950 | tx_ring_desc->map_cnt); | |
2951 | dev_kfree_skb(tx_ring_desc->skb); | |
2952 | tx_ring_desc->skb = NULL; | |
2953 | } | |
2954 | } | |
2955 | } | |
2956 | } | |
2957 | ||
c4e84bde RM |
2958 | static void ql_free_mem_resources(struct ql_adapter *qdev) |
2959 | { | |
2960 | int i; | |
2961 | ||
2962 | for (i = 0; i < qdev->tx_ring_count; i++) | |
2963 | ql_free_tx_resources(qdev, &qdev->tx_ring[i]); | |
2964 | for (i = 0; i < qdev->rx_ring_count; i++) | |
2965 | ql_free_rx_resources(qdev, &qdev->rx_ring[i]); | |
2966 | ql_free_shadow_space(qdev); | |
2967 | } | |
2968 | ||
2969 | static int ql_alloc_mem_resources(struct ql_adapter *qdev) | |
2970 | { | |
2971 | int i; | |
2972 | ||
2973 | /* Allocate space for our shadow registers and such. */ | |
2974 | if (ql_alloc_shadow_space(qdev)) | |
2975 | return -ENOMEM; | |
2976 | ||
2977 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2978 | if (ql_alloc_rx_resources(qdev, &qdev->rx_ring[i]) != 0) { | |
ae9540f7 JP |
2979 | netif_err(qdev, ifup, qdev->ndev, |
2980 | "RX resource allocation failed.\n"); | |
c4e84bde RM |
2981 | goto err_mem; |
2982 | } | |
2983 | } | |
2984 | /* Allocate tx queue resources */ | |
2985 | for (i = 0; i < qdev->tx_ring_count; i++) { | |
2986 | if (ql_alloc_tx_resources(qdev, &qdev->tx_ring[i]) != 0) { | |
ae9540f7 JP |
2987 | netif_err(qdev, ifup, qdev->ndev, |
2988 | "TX resource allocation failed.\n"); | |
c4e84bde RM |
2989 | goto err_mem; |
2990 | } | |
2991 | } | |
2992 | return 0; | |
2993 | ||
2994 | err_mem: | |
2995 | ql_free_mem_resources(qdev); | |
2996 | return -ENOMEM; | |
2997 | } | |
2998 | ||
2999 | /* Set up the rx ring control block and pass it to the chip. | |
3000 | * The control block is defined as | |
3001 | * "Completion Queue Initialization Control Block", or cqicb. | |
3002 | */ | |
3003 | static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
3004 | { | |
3005 | struct cqicb *cqicb = &rx_ring->cqicb; | |
3006 | void *shadow_reg = qdev->rx_ring_shadow_reg_area + | |
b8facca0 | 3007 | (rx_ring->cq_id * RX_RING_SHADOW_SPACE); |
c4e84bde | 3008 | u64 shadow_reg_dma = qdev->rx_ring_shadow_reg_dma + |
b8facca0 | 3009 | (rx_ring->cq_id * RX_RING_SHADOW_SPACE); |
c4e84bde RM |
3010 | void __iomem *doorbell_area = |
3011 | qdev->doorbell_area + (DB_PAGE_SIZE * (128 + rx_ring->cq_id)); | |
3012 | int err = 0; | |
3013 | u16 bq_len; | |
d4a4aba6 | 3014 | u64 tmp; |
b8facca0 RM |
3015 | __le64 *base_indirect_ptr; |
3016 | int page_entries; | |
c4e84bde RM |
3017 | |
3018 | /* Set up the shadow registers for this ring. */ | |
3019 | rx_ring->prod_idx_sh_reg = shadow_reg; | |
3020 | rx_ring->prod_idx_sh_reg_dma = shadow_reg_dma; | |
7c734359 | 3021 | *rx_ring->prod_idx_sh_reg = 0; |
c4e84bde RM |
3022 | shadow_reg += sizeof(u64); |
3023 | shadow_reg_dma += sizeof(u64); | |
3024 | rx_ring->lbq_base_indirect = shadow_reg; | |
3025 | rx_ring->lbq_base_indirect_dma = shadow_reg_dma; | |
b8facca0 RM |
3026 | shadow_reg += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); |
3027 | shadow_reg_dma += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); | |
c4e84bde RM |
3028 | rx_ring->sbq_base_indirect = shadow_reg; |
3029 | rx_ring->sbq_base_indirect_dma = shadow_reg_dma; | |
3030 | ||
3031 | /* PCI doorbell mem area + 0x00 for consumer index register */ | |
8668ae92 | 3032 | rx_ring->cnsmr_idx_db_reg = (u32 __iomem *) doorbell_area; |
c4e84bde RM |
3033 | rx_ring->cnsmr_idx = 0; |
3034 | rx_ring->curr_entry = rx_ring->cq_base; | |
3035 | ||
3036 | /* PCI doorbell mem area + 0x04 for valid register */ | |
3037 | rx_ring->valid_db_reg = doorbell_area + 0x04; | |
3038 | ||
3039 | /* PCI doorbell mem area + 0x18 for large buffer consumer */ | |
8668ae92 | 3040 | rx_ring->lbq_prod_idx_db_reg = (u32 __iomem *) (doorbell_area + 0x18); |
c4e84bde RM |
3041 | |
3042 | /* PCI doorbell mem area + 0x1c */ | |
8668ae92 | 3043 | rx_ring->sbq_prod_idx_db_reg = (u32 __iomem *) (doorbell_area + 0x1c); |
c4e84bde RM |
3044 | |
3045 | memset((void *)cqicb, 0, sizeof(struct cqicb)); | |
3046 | cqicb->msix_vect = rx_ring->irq; | |
3047 | ||
459caf5a RM |
3048 | bq_len = (rx_ring->cq_len == 65536) ? 0 : (u16) rx_ring->cq_len; |
3049 | cqicb->len = cpu_to_le16(bq_len | LEN_V | LEN_CPP_CONT); | |
c4e84bde | 3050 | |
97345524 | 3051 | cqicb->addr = cpu_to_le64(rx_ring->cq_base_dma); |
c4e84bde | 3052 | |
97345524 | 3053 | cqicb->prod_idx_addr = cpu_to_le64(rx_ring->prod_idx_sh_reg_dma); |
c4e84bde RM |
3054 | |
3055 | /* | |
3056 | * Set up the control block load flags. | |
3057 | */ | |
3058 | cqicb->flags = FLAGS_LC | /* Load queue base address */ | |
3059 | FLAGS_LV | /* Load MSI-X vector */ | |
3060 | FLAGS_LI; /* Load irq delay values */ | |
3061 | if (rx_ring->lbq_len) { | |
3062 | cqicb->flags |= FLAGS_LL; /* Load lbq values */ | |
a419aef8 | 3063 | tmp = (u64)rx_ring->lbq_base_dma; |
b8facca0 RM |
3064 | base_indirect_ptr = (__le64 *) rx_ring->lbq_base_indirect; |
3065 | page_entries = 0; | |
3066 | do { | |
3067 | *base_indirect_ptr = cpu_to_le64(tmp); | |
3068 | tmp += DB_PAGE_SIZE; | |
3069 | base_indirect_ptr++; | |
3070 | page_entries++; | |
3071 | } while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); | |
97345524 RM |
3072 | cqicb->lbq_addr = |
3073 | cpu_to_le64(rx_ring->lbq_base_indirect_dma); | |
459caf5a RM |
3074 | bq_len = (rx_ring->lbq_buf_size == 65536) ? 0 : |
3075 | (u16) rx_ring->lbq_buf_size; | |
3076 | cqicb->lbq_buf_size = cpu_to_le16(bq_len); | |
3077 | bq_len = (rx_ring->lbq_len == 65536) ? 0 : | |
3078 | (u16) rx_ring->lbq_len; | |
c4e84bde | 3079 | cqicb->lbq_len = cpu_to_le16(bq_len); |
4545a3f2 | 3080 | rx_ring->lbq_prod_idx = 0; |
c4e84bde | 3081 | rx_ring->lbq_curr_idx = 0; |
4545a3f2 RM |
3082 | rx_ring->lbq_clean_idx = 0; |
3083 | rx_ring->lbq_free_cnt = rx_ring->lbq_len; | |
c4e84bde RM |
3084 | } |
3085 | if (rx_ring->sbq_len) { | |
3086 | cqicb->flags |= FLAGS_LS; /* Load sbq values */ | |
a419aef8 | 3087 | tmp = (u64)rx_ring->sbq_base_dma; |
b8facca0 RM |
3088 | base_indirect_ptr = (__le64 *) rx_ring->sbq_base_indirect; |
3089 | page_entries = 0; | |
3090 | do { | |
3091 | *base_indirect_ptr = cpu_to_le64(tmp); | |
3092 | tmp += DB_PAGE_SIZE; | |
3093 | base_indirect_ptr++; | |
3094 | page_entries++; | |
3095 | } while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->sbq_len)); | |
97345524 RM |
3096 | cqicb->sbq_addr = |
3097 | cpu_to_le64(rx_ring->sbq_base_indirect_dma); | |
c4e84bde | 3098 | cqicb->sbq_buf_size = |
52e55f3c | 3099 | cpu_to_le16((u16)(rx_ring->sbq_buf_size)); |
459caf5a RM |
3100 | bq_len = (rx_ring->sbq_len == 65536) ? 0 : |
3101 | (u16) rx_ring->sbq_len; | |
c4e84bde | 3102 | cqicb->sbq_len = cpu_to_le16(bq_len); |
4545a3f2 | 3103 | rx_ring->sbq_prod_idx = 0; |
c4e84bde | 3104 | rx_ring->sbq_curr_idx = 0; |
4545a3f2 RM |
3105 | rx_ring->sbq_clean_idx = 0; |
3106 | rx_ring->sbq_free_cnt = rx_ring->sbq_len; | |
c4e84bde RM |
3107 | } |
3108 | switch (rx_ring->type) { | |
3109 | case TX_Q: | |
c4e84bde RM |
3110 | cqicb->irq_delay = cpu_to_le16(qdev->tx_coalesce_usecs); |
3111 | cqicb->pkt_delay = cpu_to_le16(qdev->tx_max_coalesced_frames); | |
3112 | break; | |
c4e84bde RM |
3113 | case RX_Q: |
3114 | /* Inbound completion handling rx_rings run in | |
3115 | * separate NAPI contexts. | |
3116 | */ | |
3117 | netif_napi_add(qdev->ndev, &rx_ring->napi, ql_napi_poll_msix, | |
3118 | 64); | |
3119 | cqicb->irq_delay = cpu_to_le16(qdev->rx_coalesce_usecs); | |
3120 | cqicb->pkt_delay = cpu_to_le16(qdev->rx_max_coalesced_frames); | |
3121 | break; | |
3122 | default: | |
ae9540f7 JP |
3123 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3124 | "Invalid rx_ring->type = %d.\n", rx_ring->type); | |
c4e84bde | 3125 | } |
ae9540f7 JP |
3126 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3127 | "Initializing rx work queue.\n"); | |
c4e84bde RM |
3128 | err = ql_write_cfg(qdev, cqicb, sizeof(struct cqicb), |
3129 | CFG_LCQ, rx_ring->cq_id); | |
3130 | if (err) { | |
ae9540f7 | 3131 | netif_err(qdev, ifup, qdev->ndev, "Failed to load CQICB.\n"); |
c4e84bde RM |
3132 | return err; |
3133 | } | |
c4e84bde RM |
3134 | return err; |
3135 | } | |
3136 | ||
3137 | static int ql_start_tx_ring(struct ql_adapter *qdev, struct tx_ring *tx_ring) | |
3138 | { | |
3139 | struct wqicb *wqicb = (struct wqicb *)tx_ring; | |
3140 | void __iomem *doorbell_area = | |
3141 | qdev->doorbell_area + (DB_PAGE_SIZE * tx_ring->wq_id); | |
3142 | void *shadow_reg = qdev->tx_ring_shadow_reg_area + | |
3143 | (tx_ring->wq_id * sizeof(u64)); | |
3144 | u64 shadow_reg_dma = qdev->tx_ring_shadow_reg_dma + | |
3145 | (tx_ring->wq_id * sizeof(u64)); | |
3146 | int err = 0; | |
3147 | ||
3148 | /* | |
3149 | * Assign doorbell registers for this tx_ring. | |
3150 | */ | |
3151 | /* TX PCI doorbell mem area for tx producer index */ | |
8668ae92 | 3152 | tx_ring->prod_idx_db_reg = (u32 __iomem *) doorbell_area; |
c4e84bde RM |
3153 | tx_ring->prod_idx = 0; |
3154 | /* TX PCI doorbell mem area + 0x04 */ | |
3155 | tx_ring->valid_db_reg = doorbell_area + 0x04; | |
3156 | ||
3157 | /* | |
3158 | * Assign shadow registers for this tx_ring. | |
3159 | */ | |
3160 | tx_ring->cnsmr_idx_sh_reg = shadow_reg; | |
3161 | tx_ring->cnsmr_idx_sh_reg_dma = shadow_reg_dma; | |
3162 | ||
3163 | wqicb->len = cpu_to_le16(tx_ring->wq_len | Q_LEN_V | Q_LEN_CPP_CONT); | |
3164 | wqicb->flags = cpu_to_le16(Q_FLAGS_LC | | |
3165 | Q_FLAGS_LB | Q_FLAGS_LI | Q_FLAGS_LO); | |
3166 | wqicb->cq_id_rss = cpu_to_le16(tx_ring->cq_id); | |
3167 | wqicb->rid = 0; | |
97345524 | 3168 | wqicb->addr = cpu_to_le64(tx_ring->wq_base_dma); |
c4e84bde | 3169 | |
97345524 | 3170 | wqicb->cnsmr_idx_addr = cpu_to_le64(tx_ring->cnsmr_idx_sh_reg_dma); |
c4e84bde RM |
3171 | |
3172 | ql_init_tx_ring(qdev, tx_ring); | |
3173 | ||
e332471c | 3174 | err = ql_write_cfg(qdev, wqicb, sizeof(*wqicb), CFG_LRQ, |
c4e84bde RM |
3175 | (u16) tx_ring->wq_id); |
3176 | if (err) { | |
ae9540f7 | 3177 | netif_err(qdev, ifup, qdev->ndev, "Failed to load tx_ring.\n"); |
c4e84bde RM |
3178 | return err; |
3179 | } | |
ae9540f7 JP |
3180 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3181 | "Successfully loaded WQICB.\n"); | |
c4e84bde RM |
3182 | return err; |
3183 | } | |
3184 | ||
3185 | static void ql_disable_msix(struct ql_adapter *qdev) | |
3186 | { | |
3187 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
3188 | pci_disable_msix(qdev->pdev); | |
3189 | clear_bit(QL_MSIX_ENABLED, &qdev->flags); | |
3190 | kfree(qdev->msi_x_entry); | |
3191 | qdev->msi_x_entry = NULL; | |
3192 | } else if (test_bit(QL_MSI_ENABLED, &qdev->flags)) { | |
3193 | pci_disable_msi(qdev->pdev); | |
3194 | clear_bit(QL_MSI_ENABLED, &qdev->flags); | |
3195 | } | |
3196 | } | |
3197 | ||
a4ab6137 RM |
3198 | /* We start by trying to get the number of vectors |
3199 | * stored in qdev->intr_count. If we don't get that | |
3200 | * many then we reduce the count and try again. | |
3201 | */ | |
c4e84bde RM |
3202 | static void ql_enable_msix(struct ql_adapter *qdev) |
3203 | { | |
a4ab6137 | 3204 | int i, err; |
c4e84bde | 3205 | |
c4e84bde | 3206 | /* Get the MSIX vectors. */ |
a5a62a1c | 3207 | if (qlge_irq_type == MSIX_IRQ) { |
c4e84bde RM |
3208 | /* Try to alloc space for the msix struct, |
3209 | * if it fails then go to MSI/legacy. | |
3210 | */ | |
a4ab6137 | 3211 | qdev->msi_x_entry = kcalloc(qdev->intr_count, |
c4e84bde RM |
3212 | sizeof(struct msix_entry), |
3213 | GFP_KERNEL); | |
3214 | if (!qdev->msi_x_entry) { | |
a5a62a1c | 3215 | qlge_irq_type = MSI_IRQ; |
c4e84bde RM |
3216 | goto msi; |
3217 | } | |
3218 | ||
a4ab6137 | 3219 | for (i = 0; i < qdev->intr_count; i++) |
c4e84bde RM |
3220 | qdev->msi_x_entry[i].entry = i; |
3221 | ||
a4ab6137 RM |
3222 | /* Loop to get our vectors. We start with |
3223 | * what we want and settle for what we get. | |
3224 | */ | |
3225 | do { | |
3226 | err = pci_enable_msix(qdev->pdev, | |
3227 | qdev->msi_x_entry, qdev->intr_count); | |
3228 | if (err > 0) | |
3229 | qdev->intr_count = err; | |
3230 | } while (err > 0); | |
3231 | ||
3232 | if (err < 0) { | |
c4e84bde RM |
3233 | kfree(qdev->msi_x_entry); |
3234 | qdev->msi_x_entry = NULL; | |
ae9540f7 JP |
3235 | netif_warn(qdev, ifup, qdev->ndev, |
3236 | "MSI-X Enable failed, trying MSI.\n"); | |
a4ab6137 | 3237 | qdev->intr_count = 1; |
a5a62a1c | 3238 | qlge_irq_type = MSI_IRQ; |
a4ab6137 RM |
3239 | } else if (err == 0) { |
3240 | set_bit(QL_MSIX_ENABLED, &qdev->flags); | |
ae9540f7 JP |
3241 | netif_info(qdev, ifup, qdev->ndev, |
3242 | "MSI-X Enabled, got %d vectors.\n", | |
3243 | qdev->intr_count); | |
a4ab6137 | 3244 | return; |
c4e84bde RM |
3245 | } |
3246 | } | |
3247 | msi: | |
a4ab6137 | 3248 | qdev->intr_count = 1; |
a5a62a1c | 3249 | if (qlge_irq_type == MSI_IRQ) { |
c4e84bde RM |
3250 | if (!pci_enable_msi(qdev->pdev)) { |
3251 | set_bit(QL_MSI_ENABLED, &qdev->flags); | |
ae9540f7 JP |
3252 | netif_info(qdev, ifup, qdev->ndev, |
3253 | "Running with MSI interrupts.\n"); | |
c4e84bde RM |
3254 | return; |
3255 | } | |
3256 | } | |
a5a62a1c | 3257 | qlge_irq_type = LEG_IRQ; |
ae9540f7 JP |
3258 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3259 | "Running with legacy interrupts.\n"); | |
c4e84bde RM |
3260 | } |
3261 | ||
39aa8165 RM |
3262 | /* Each vector services 1 RSS ring and and 1 or more |
3263 | * TX completion rings. This function loops through | |
3264 | * the TX completion rings and assigns the vector that | |
3265 | * will service it. An example would be if there are | |
3266 | * 2 vectors (so 2 RSS rings) and 8 TX completion rings. | |
3267 | * This would mean that vector 0 would service RSS ring 0 | |
3268 | * and TX competion rings 0,1,2 and 3. Vector 1 would | |
3269 | * service RSS ring 1 and TX completion rings 4,5,6 and 7. | |
3270 | */ | |
3271 | static void ql_set_tx_vect(struct ql_adapter *qdev) | |
3272 | { | |
3273 | int i, j, vect; | |
3274 | u32 tx_rings_per_vector = qdev->tx_ring_count / qdev->intr_count; | |
3275 | ||
3276 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { | |
3277 | /* Assign irq vectors to TX rx_rings.*/ | |
3278 | for (vect = 0, j = 0, i = qdev->rss_ring_count; | |
3279 | i < qdev->rx_ring_count; i++) { | |
3280 | if (j == tx_rings_per_vector) { | |
3281 | vect++; | |
3282 | j = 0; | |
3283 | } | |
3284 | qdev->rx_ring[i].irq = vect; | |
3285 | j++; | |
3286 | } | |
3287 | } else { | |
3288 | /* For single vector all rings have an irq | |
3289 | * of zero. | |
3290 | */ | |
3291 | for (i = 0; i < qdev->rx_ring_count; i++) | |
3292 | qdev->rx_ring[i].irq = 0; | |
3293 | } | |
3294 | } | |
3295 | ||
3296 | /* Set the interrupt mask for this vector. Each vector | |
3297 | * will service 1 RSS ring and 1 or more TX completion | |
3298 | * rings. This function sets up a bit mask per vector | |
3299 | * that indicates which rings it services. | |
3300 | */ | |
3301 | static void ql_set_irq_mask(struct ql_adapter *qdev, struct intr_context *ctx) | |
3302 | { | |
3303 | int j, vect = ctx->intr; | |
3304 | u32 tx_rings_per_vector = qdev->tx_ring_count / qdev->intr_count; | |
3305 | ||
3306 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { | |
3307 | /* Add the RSS ring serviced by this vector | |
3308 | * to the mask. | |
3309 | */ | |
3310 | ctx->irq_mask = (1 << qdev->rx_ring[vect].cq_id); | |
3311 | /* Add the TX ring(s) serviced by this vector | |
3312 | * to the mask. */ | |
3313 | for (j = 0; j < tx_rings_per_vector; j++) { | |
3314 | ctx->irq_mask |= | |
3315 | (1 << qdev->rx_ring[qdev->rss_ring_count + | |
3316 | (vect * tx_rings_per_vector) + j].cq_id); | |
3317 | } | |
3318 | } else { | |
3319 | /* For single vector we just shift each queue's | |
3320 | * ID into the mask. | |
3321 | */ | |
3322 | for (j = 0; j < qdev->rx_ring_count; j++) | |
3323 | ctx->irq_mask |= (1 << qdev->rx_ring[j].cq_id); | |
3324 | } | |
3325 | } | |
3326 | ||
c4e84bde RM |
3327 | /* |
3328 | * Here we build the intr_context structures based on | |
3329 | * our rx_ring count and intr vector count. | |
3330 | * The intr_context structure is used to hook each vector | |
3331 | * to possibly different handlers. | |
3332 | */ | |
3333 | static void ql_resolve_queues_to_irqs(struct ql_adapter *qdev) | |
3334 | { | |
3335 | int i = 0; | |
3336 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
3337 | ||
c4e84bde RM |
3338 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { |
3339 | /* Each rx_ring has it's | |
3340 | * own intr_context since we have separate | |
3341 | * vectors for each queue. | |
c4e84bde RM |
3342 | */ |
3343 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
3344 | qdev->rx_ring[i].irq = i; | |
3345 | intr_context->intr = i; | |
3346 | intr_context->qdev = qdev; | |
39aa8165 RM |
3347 | /* Set up this vector's bit-mask that indicates |
3348 | * which queues it services. | |
3349 | */ | |
3350 | ql_set_irq_mask(qdev, intr_context); | |
c4e84bde RM |
3351 | /* |
3352 | * We set up each vectors enable/disable/read bits so | |
3353 | * there's no bit/mask calculations in the critical path. | |
3354 | */ | |
3355 | intr_context->intr_en_mask = | |
3356 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
3357 | INTR_EN_TYPE_ENABLE | INTR_EN_IHD_MASK | INTR_EN_IHD | |
3358 | | i; | |
3359 | intr_context->intr_dis_mask = | |
3360 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
3361 | INTR_EN_TYPE_DISABLE | INTR_EN_IHD_MASK | | |
3362 | INTR_EN_IHD | i; | |
3363 | intr_context->intr_read_mask = | |
3364 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
3365 | INTR_EN_TYPE_READ | INTR_EN_IHD_MASK | INTR_EN_IHD | | |
3366 | i; | |
39aa8165 RM |
3367 | if (i == 0) { |
3368 | /* The first vector/queue handles | |
3369 | * broadcast/multicast, fatal errors, | |
3370 | * and firmware events. This in addition | |
3371 | * to normal inbound NAPI processing. | |
c4e84bde | 3372 | */ |
39aa8165 | 3373 | intr_context->handler = qlge_isr; |
b2014ff8 RM |
3374 | sprintf(intr_context->name, "%s-rx-%d", |
3375 | qdev->ndev->name, i); | |
3376 | } else { | |
c4e84bde | 3377 | /* |
39aa8165 | 3378 | * Inbound queues handle unicast frames only. |
c4e84bde | 3379 | */ |
39aa8165 RM |
3380 | intr_context->handler = qlge_msix_rx_isr; |
3381 | sprintf(intr_context->name, "%s-rx-%d", | |
c4e84bde | 3382 | qdev->ndev->name, i); |
c4e84bde RM |
3383 | } |
3384 | } | |
3385 | } else { | |
3386 | /* | |
3387 | * All rx_rings use the same intr_context since | |
3388 | * there is only one vector. | |
3389 | */ | |
3390 | intr_context->intr = 0; | |
3391 | intr_context->qdev = qdev; | |
3392 | /* | |
3393 | * We set up each vectors enable/disable/read bits so | |
3394 | * there's no bit/mask calculations in the critical path. | |
3395 | */ | |
3396 | intr_context->intr_en_mask = | |
3397 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | INTR_EN_TYPE_ENABLE; | |
3398 | intr_context->intr_dis_mask = | |
3399 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
3400 | INTR_EN_TYPE_DISABLE; | |
3401 | intr_context->intr_read_mask = | |
3402 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | INTR_EN_TYPE_READ; | |
3403 | /* | |
3404 | * Single interrupt means one handler for all rings. | |
3405 | */ | |
3406 | intr_context->handler = qlge_isr; | |
3407 | sprintf(intr_context->name, "%s-single_irq", qdev->ndev->name); | |
39aa8165 RM |
3408 | /* Set up this vector's bit-mask that indicates |
3409 | * which queues it services. In this case there is | |
3410 | * a single vector so it will service all RSS and | |
3411 | * TX completion rings. | |
3412 | */ | |
3413 | ql_set_irq_mask(qdev, intr_context); | |
c4e84bde | 3414 | } |
39aa8165 RM |
3415 | /* Tell the TX completion rings which MSIx vector |
3416 | * they will be using. | |
3417 | */ | |
3418 | ql_set_tx_vect(qdev); | |
c4e84bde RM |
3419 | } |
3420 | ||
3421 | static void ql_free_irq(struct ql_adapter *qdev) | |
3422 | { | |
3423 | int i; | |
3424 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
3425 | ||
3426 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
3427 | if (intr_context->hooked) { | |
3428 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
3429 | free_irq(qdev->msi_x_entry[i].vector, | |
3430 | &qdev->rx_ring[i]); | |
ae9540f7 JP |
3431 | netif_printk(qdev, ifdown, KERN_DEBUG, qdev->ndev, |
3432 | "freeing msix interrupt %d.\n", i); | |
c4e84bde RM |
3433 | } else { |
3434 | free_irq(qdev->pdev->irq, &qdev->rx_ring[0]); | |
ae9540f7 JP |
3435 | netif_printk(qdev, ifdown, KERN_DEBUG, qdev->ndev, |
3436 | "freeing msi interrupt %d.\n", i); | |
c4e84bde RM |
3437 | } |
3438 | } | |
3439 | } | |
3440 | ql_disable_msix(qdev); | |
3441 | } | |
3442 | ||
3443 | static int ql_request_irq(struct ql_adapter *qdev) | |
3444 | { | |
3445 | int i; | |
3446 | int status = 0; | |
3447 | struct pci_dev *pdev = qdev->pdev; | |
3448 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
3449 | ||
3450 | ql_resolve_queues_to_irqs(qdev); | |
3451 | ||
3452 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
3453 | atomic_set(&intr_context->irq_cnt, 0); | |
3454 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
3455 | status = request_irq(qdev->msi_x_entry[i].vector, | |
3456 | intr_context->handler, | |
3457 | 0, | |
3458 | intr_context->name, | |
3459 | &qdev->rx_ring[i]); | |
3460 | if (status) { | |
ae9540f7 JP |
3461 | netif_err(qdev, ifup, qdev->ndev, |
3462 | "Failed request for MSIX interrupt %d.\n", | |
3463 | i); | |
c4e84bde RM |
3464 | goto err_irq; |
3465 | } else { | |
ae9540f7 JP |
3466 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3467 | "Hooked intr %d, queue type %s, with name %s.\n", | |
3468 | i, | |
3469 | qdev->rx_ring[i].type == DEFAULT_Q ? | |
3470 | "DEFAULT_Q" : | |
3471 | qdev->rx_ring[i].type == TX_Q ? | |
3472 | "TX_Q" : | |
3473 | qdev->rx_ring[i].type == RX_Q ? | |
3474 | "RX_Q" : "", | |
3475 | intr_context->name); | |
c4e84bde RM |
3476 | } |
3477 | } else { | |
ae9540f7 JP |
3478 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3479 | "trying msi or legacy interrupts.\n"); | |
3480 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, | |
3481 | "%s: irq = %d.\n", __func__, pdev->irq); | |
3482 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, | |
3483 | "%s: context->name = %s.\n", __func__, | |
3484 | intr_context->name); | |
3485 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, | |
3486 | "%s: dev_id = 0x%p.\n", __func__, | |
3487 | &qdev->rx_ring[0]); | |
c4e84bde RM |
3488 | status = |
3489 | request_irq(pdev->irq, qlge_isr, | |
3490 | test_bit(QL_MSI_ENABLED, | |
3491 | &qdev-> | |
3492 | flags) ? 0 : IRQF_SHARED, | |
3493 | intr_context->name, &qdev->rx_ring[0]); | |
3494 | if (status) | |
3495 | goto err_irq; | |
3496 | ||
ae9540f7 JP |
3497 | netif_err(qdev, ifup, qdev->ndev, |
3498 | "Hooked intr %d, queue type %s, with name %s.\n", | |
3499 | i, | |
3500 | qdev->rx_ring[0].type == DEFAULT_Q ? | |
3501 | "DEFAULT_Q" : | |
3502 | qdev->rx_ring[0].type == TX_Q ? "TX_Q" : | |
3503 | qdev->rx_ring[0].type == RX_Q ? "RX_Q" : "", | |
3504 | intr_context->name); | |
c4e84bde RM |
3505 | } |
3506 | intr_context->hooked = 1; | |
3507 | } | |
3508 | return status; | |
3509 | err_irq: | |
ae9540f7 | 3510 | netif_err(qdev, ifup, qdev->ndev, "Failed to get the interrupts!!!/n"); |
c4e84bde RM |
3511 | ql_free_irq(qdev); |
3512 | return status; | |
3513 | } | |
3514 | ||
3515 | static int ql_start_rss(struct ql_adapter *qdev) | |
3516 | { | |
541ae28c RM |
3517 | u8 init_hash_seed[] = {0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, |
3518 | 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, | |
3519 | 0xb0, 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, | |
3520 | 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, | |
3521 | 0x30, 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, | |
3522 | 0xbe, 0xac, 0x01, 0xfa}; | |
c4e84bde RM |
3523 | struct ricb *ricb = &qdev->ricb; |
3524 | int status = 0; | |
3525 | int i; | |
3526 | u8 *hash_id = (u8 *) ricb->hash_cq_id; | |
3527 | ||
e332471c | 3528 | memset((void *)ricb, 0, sizeof(*ricb)); |
c4e84bde | 3529 | |
b2014ff8 | 3530 | ricb->base_cq = RSS_L4K; |
c4e84bde | 3531 | ricb->flags = |
541ae28c RM |
3532 | (RSS_L6K | RSS_LI | RSS_LB | RSS_LM | RSS_RT4 | RSS_RT6); |
3533 | ricb->mask = cpu_to_le16((u16)(0x3ff)); | |
c4e84bde RM |
3534 | |
3535 | /* | |
3536 | * Fill out the Indirection Table. | |
3537 | */ | |
541ae28c RM |
3538 | for (i = 0; i < 1024; i++) |
3539 | hash_id[i] = (i & (qdev->rss_ring_count - 1)); | |
c4e84bde | 3540 | |
541ae28c RM |
3541 | memcpy((void *)&ricb->ipv6_hash_key[0], init_hash_seed, 40); |
3542 | memcpy((void *)&ricb->ipv4_hash_key[0], init_hash_seed, 16); | |
c4e84bde | 3543 | |
ae9540f7 | 3544 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, "Initializing RSS.\n"); |
c4e84bde | 3545 | |
e332471c | 3546 | status = ql_write_cfg(qdev, ricb, sizeof(*ricb), CFG_LR, 0); |
c4e84bde | 3547 | if (status) { |
ae9540f7 | 3548 | netif_err(qdev, ifup, qdev->ndev, "Failed to load RICB.\n"); |
c4e84bde RM |
3549 | return status; |
3550 | } | |
ae9540f7 JP |
3551 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3552 | "Successfully loaded RICB.\n"); | |
c4e84bde RM |
3553 | return status; |
3554 | } | |
3555 | ||
a5f59dc9 | 3556 | static int ql_clear_routing_entries(struct ql_adapter *qdev) |
c4e84bde | 3557 | { |
a5f59dc9 | 3558 | int i, status = 0; |
c4e84bde | 3559 | |
8587ea35 RM |
3560 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
3561 | if (status) | |
3562 | return status; | |
c4e84bde RM |
3563 | /* Clear all the entries in the routing table. */ |
3564 | for (i = 0; i < 16; i++) { | |
3565 | status = ql_set_routing_reg(qdev, i, 0, 0); | |
3566 | if (status) { | |
ae9540f7 JP |
3567 | netif_err(qdev, ifup, qdev->ndev, |
3568 | "Failed to init routing register for CAM packets.\n"); | |
a5f59dc9 | 3569 | break; |
c4e84bde RM |
3570 | } |
3571 | } | |
a5f59dc9 RM |
3572 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); |
3573 | return status; | |
3574 | } | |
3575 | ||
3576 | /* Initialize the frame-to-queue routing. */ | |
3577 | static int ql_route_initialize(struct ql_adapter *qdev) | |
3578 | { | |
3579 | int status = 0; | |
3580 | ||
fd21cf52 RM |
3581 | /* Clear all the entries in the routing table. */ |
3582 | status = ql_clear_routing_entries(qdev); | |
a5f59dc9 RM |
3583 | if (status) |
3584 | return status; | |
3585 | ||
fd21cf52 | 3586 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
a5f59dc9 | 3587 | if (status) |
fd21cf52 | 3588 | return status; |
c4e84bde RM |
3589 | |
3590 | status = ql_set_routing_reg(qdev, RT_IDX_ALL_ERR_SLOT, RT_IDX_ERR, 1); | |
3591 | if (status) { | |
ae9540f7 JP |
3592 | netif_err(qdev, ifup, qdev->ndev, |
3593 | "Failed to init routing register for error packets.\n"); | |
8587ea35 | 3594 | goto exit; |
c4e84bde RM |
3595 | } |
3596 | status = ql_set_routing_reg(qdev, RT_IDX_BCAST_SLOT, RT_IDX_BCAST, 1); | |
3597 | if (status) { | |
ae9540f7 JP |
3598 | netif_err(qdev, ifup, qdev->ndev, |
3599 | "Failed to init routing register for broadcast packets.\n"); | |
8587ea35 | 3600 | goto exit; |
c4e84bde RM |
3601 | } |
3602 | /* If we have more than one inbound queue, then turn on RSS in the | |
3603 | * routing block. | |
3604 | */ | |
3605 | if (qdev->rss_ring_count > 1) { | |
3606 | status = ql_set_routing_reg(qdev, RT_IDX_RSS_MATCH_SLOT, | |
3607 | RT_IDX_RSS_MATCH, 1); | |
3608 | if (status) { | |
ae9540f7 JP |
3609 | netif_err(qdev, ifup, qdev->ndev, |
3610 | "Failed to init routing register for MATCH RSS packets.\n"); | |
8587ea35 | 3611 | goto exit; |
c4e84bde RM |
3612 | } |
3613 | } | |
3614 | ||
3615 | status = ql_set_routing_reg(qdev, RT_IDX_CAM_HIT_SLOT, | |
3616 | RT_IDX_CAM_HIT, 1); | |
8587ea35 | 3617 | if (status) |
ae9540f7 JP |
3618 | netif_err(qdev, ifup, qdev->ndev, |
3619 | "Failed to init routing register for CAM packets.\n"); | |
8587ea35 RM |
3620 | exit: |
3621 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); | |
c4e84bde RM |
3622 | return status; |
3623 | } | |
3624 | ||
2ee1e272 | 3625 | int ql_cam_route_initialize(struct ql_adapter *qdev) |
bb58b5b6 | 3626 | { |
7fab3bfe | 3627 | int status, set; |
bb58b5b6 | 3628 | |
7fab3bfe RM |
3629 | /* If check if the link is up and use to |
3630 | * determine if we are setting or clearing | |
3631 | * the MAC address in the CAM. | |
3632 | */ | |
3633 | set = ql_read32(qdev, STS); | |
3634 | set &= qdev->port_link_up; | |
3635 | status = ql_set_mac_addr(qdev, set); | |
bb58b5b6 | 3636 | if (status) { |
ae9540f7 | 3637 | netif_err(qdev, ifup, qdev->ndev, "Failed to init mac address.\n"); |
bb58b5b6 RM |
3638 | return status; |
3639 | } | |
3640 | ||
3641 | status = ql_route_initialize(qdev); | |
3642 | if (status) | |
ae9540f7 | 3643 | netif_err(qdev, ifup, qdev->ndev, "Failed to init routing table.\n"); |
bb58b5b6 RM |
3644 | |
3645 | return status; | |
3646 | } | |
3647 | ||
c4e84bde RM |
3648 | static int ql_adapter_initialize(struct ql_adapter *qdev) |
3649 | { | |
3650 | u32 value, mask; | |
3651 | int i; | |
3652 | int status = 0; | |
3653 | ||
3654 | /* | |
3655 | * Set up the System register to halt on errors. | |
3656 | */ | |
3657 | value = SYS_EFE | SYS_FAE; | |
3658 | mask = value << 16; | |
3659 | ql_write32(qdev, SYS, mask | value); | |
3660 | ||
c9cf0a04 RM |
3661 | /* Set the default queue, and VLAN behavior. */ |
3662 | value = NIC_RCV_CFG_DFQ | NIC_RCV_CFG_RV; | |
3663 | mask = NIC_RCV_CFG_DFQ_MASK | (NIC_RCV_CFG_RV << 16); | |
c4e84bde RM |
3664 | ql_write32(qdev, NIC_RCV_CFG, (mask | value)); |
3665 | ||
3666 | /* Set the MPI interrupt to enabled. */ | |
3667 | ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI); | |
3668 | ||
3669 | /* Enable the function, set pagesize, enable error checking. */ | |
3670 | value = FSC_FE | FSC_EPC_INBOUND | FSC_EPC_OUTBOUND | | |
572c526f RM |
3671 | FSC_EC | FSC_VM_PAGE_4K; |
3672 | value |= SPLT_SETTING; | |
c4e84bde RM |
3673 | |
3674 | /* Set/clear header splitting. */ | |
3675 | mask = FSC_VM_PAGESIZE_MASK | | |
3676 | FSC_DBL_MASK | FSC_DBRST_MASK | (value << 16); | |
3677 | ql_write32(qdev, FSC, mask | value); | |
3678 | ||
572c526f | 3679 | ql_write32(qdev, SPLT_HDR, SPLT_LEN); |
c4e84bde | 3680 | |
a3b71939 RM |
3681 | /* Set RX packet routing to use port/pci function on which the |
3682 | * packet arrived on in addition to usual frame routing. | |
3683 | * This is helpful on bonding where both interfaces can have | |
3684 | * the same MAC address. | |
3685 | */ | |
3686 | ql_write32(qdev, RST_FO, RST_FO_RR_MASK | RST_FO_RR_RCV_FUNC_CQ); | |
bc083ce9 RM |
3687 | /* Reroute all packets to our Interface. |
3688 | * They may have been routed to MPI firmware | |
3689 | * due to WOL. | |
3690 | */ | |
3691 | value = ql_read32(qdev, MGMT_RCV_CFG); | |
3692 | value &= ~MGMT_RCV_CFG_RM; | |
3693 | mask = 0xffff0000; | |
3694 | ||
3695 | /* Sticky reg needs clearing due to WOL. */ | |
3696 | ql_write32(qdev, MGMT_RCV_CFG, mask); | |
3697 | ql_write32(qdev, MGMT_RCV_CFG, mask | value); | |
3698 | ||
3699 | /* Default WOL is enable on Mezz cards */ | |
3700 | if (qdev->pdev->subsystem_device == 0x0068 || | |
3701 | qdev->pdev->subsystem_device == 0x0180) | |
3702 | qdev->wol = WAKE_MAGIC; | |
a3b71939 | 3703 | |
c4e84bde RM |
3704 | /* Start up the rx queues. */ |
3705 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
3706 | status = ql_start_rx_ring(qdev, &qdev->rx_ring[i]); | |
3707 | if (status) { | |
ae9540f7 JP |
3708 | netif_err(qdev, ifup, qdev->ndev, |
3709 | "Failed to start rx ring[%d].\n", i); | |
c4e84bde RM |
3710 | return status; |
3711 | } | |
3712 | } | |
3713 | ||
3714 | /* If there is more than one inbound completion queue | |
3715 | * then download a RICB to configure RSS. | |
3716 | */ | |
3717 | if (qdev->rss_ring_count > 1) { | |
3718 | status = ql_start_rss(qdev); | |
3719 | if (status) { | |
ae9540f7 | 3720 | netif_err(qdev, ifup, qdev->ndev, "Failed to start RSS.\n"); |
c4e84bde RM |
3721 | return status; |
3722 | } | |
3723 | } | |
3724 | ||
3725 | /* Start up the tx queues. */ | |
3726 | for (i = 0; i < qdev->tx_ring_count; i++) { | |
3727 | status = ql_start_tx_ring(qdev, &qdev->tx_ring[i]); | |
3728 | if (status) { | |
ae9540f7 JP |
3729 | netif_err(qdev, ifup, qdev->ndev, |
3730 | "Failed to start tx ring[%d].\n", i); | |
c4e84bde RM |
3731 | return status; |
3732 | } | |
3733 | } | |
3734 | ||
b0c2aadf RM |
3735 | /* Initialize the port and set the max framesize. */ |
3736 | status = qdev->nic_ops->port_initialize(qdev); | |
80928860 | 3737 | if (status) |
ae9540f7 | 3738 | netif_err(qdev, ifup, qdev->ndev, "Failed to start port.\n"); |
c4e84bde | 3739 | |
bb58b5b6 RM |
3740 | /* Set up the MAC address and frame routing filter. */ |
3741 | status = ql_cam_route_initialize(qdev); | |
c4e84bde | 3742 | if (status) { |
ae9540f7 JP |
3743 | netif_err(qdev, ifup, qdev->ndev, |
3744 | "Failed to init CAM/Routing tables.\n"); | |
c4e84bde RM |
3745 | return status; |
3746 | } | |
3747 | ||
3748 | /* Start NAPI for the RSS queues. */ | |
b2014ff8 | 3749 | for (i = 0; i < qdev->rss_ring_count; i++) { |
ae9540f7 JP |
3750 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
3751 | "Enabling NAPI for rx_ring[%d].\n", i); | |
c4e84bde RM |
3752 | napi_enable(&qdev->rx_ring[i].napi); |
3753 | } | |
3754 | ||
3755 | return status; | |
3756 | } | |
3757 | ||
3758 | /* Issue soft reset to chip. */ | |
3759 | static int ql_adapter_reset(struct ql_adapter *qdev) | |
3760 | { | |
3761 | u32 value; | |
c4e84bde | 3762 | int status = 0; |
a5f59dc9 | 3763 | unsigned long end_jiffies; |
c4e84bde | 3764 | |
a5f59dc9 RM |
3765 | /* Clear all the entries in the routing table. */ |
3766 | status = ql_clear_routing_entries(qdev); | |
3767 | if (status) { | |
ae9540f7 | 3768 | netif_err(qdev, ifup, qdev->ndev, "Failed to clear routing bits.\n"); |
a5f59dc9 RM |
3769 | return status; |
3770 | } | |
3771 | ||
3772 | end_jiffies = jiffies + | |
3773 | max((unsigned long)1, usecs_to_jiffies(30)); | |
84087f4d RM |
3774 | |
3775 | /* Stop management traffic. */ | |
3776 | ql_mb_set_mgmnt_traffic_ctl(qdev, MB_SET_MPI_TFK_STOP); | |
3777 | ||
3778 | /* Wait for the NIC and MGMNT FIFOs to empty. */ | |
3779 | ql_wait_fifo_empty(qdev); | |
3780 | ||
c4e84bde | 3781 | ql_write32(qdev, RST_FO, (RST_FO_FR << 16) | RST_FO_FR); |
a75ee7f1 | 3782 | |
c4e84bde RM |
3783 | do { |
3784 | value = ql_read32(qdev, RST_FO); | |
3785 | if ((value & RST_FO_FR) == 0) | |
3786 | break; | |
a75ee7f1 RM |
3787 | cpu_relax(); |
3788 | } while (time_before(jiffies, end_jiffies)); | |
c4e84bde | 3789 | |
c4e84bde | 3790 | if (value & RST_FO_FR) { |
ae9540f7 JP |
3791 | netif_err(qdev, ifdown, qdev->ndev, |
3792 | "ETIMEDOUT!!! errored out of resetting the chip!\n"); | |
a75ee7f1 | 3793 | status = -ETIMEDOUT; |
c4e84bde RM |
3794 | } |
3795 | ||
84087f4d RM |
3796 | /* Resume management traffic. */ |
3797 | ql_mb_set_mgmnt_traffic_ctl(qdev, MB_SET_MPI_TFK_RESUME); | |
c4e84bde RM |
3798 | return status; |
3799 | } | |
3800 | ||
3801 | static void ql_display_dev_info(struct net_device *ndev) | |
3802 | { | |
3803 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
3804 | ||
ae9540f7 JP |
3805 | netif_info(qdev, probe, qdev->ndev, |
3806 | "Function #%d, Port %d, NIC Roll %d, NIC Rev = %d, " | |
3807 | "XG Roll = %d, XG Rev = %d.\n", | |
3808 | qdev->func, | |
3809 | qdev->port, | |
3810 | qdev->chip_rev_id & 0x0000000f, | |
3811 | qdev->chip_rev_id >> 4 & 0x0000000f, | |
3812 | qdev->chip_rev_id >> 8 & 0x0000000f, | |
3813 | qdev->chip_rev_id >> 12 & 0x0000000f); | |
3814 | netif_info(qdev, probe, qdev->ndev, | |
3815 | "MAC address %pM\n", ndev->dev_addr); | |
c4e84bde RM |
3816 | } |
3817 | ||
bc083ce9 RM |
3818 | int ql_wol(struct ql_adapter *qdev) |
3819 | { | |
3820 | int status = 0; | |
3821 | u32 wol = MB_WOL_DISABLE; | |
3822 | ||
3823 | /* The CAM is still intact after a reset, but if we | |
3824 | * are doing WOL, then we may need to program the | |
3825 | * routing regs. We would also need to issue the mailbox | |
3826 | * commands to instruct the MPI what to do per the ethtool | |
3827 | * settings. | |
3828 | */ | |
3829 | ||
3830 | if (qdev->wol & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_PHY | WAKE_UCAST | | |
3831 | WAKE_MCAST | WAKE_BCAST)) { | |
ae9540f7 JP |
3832 | netif_err(qdev, ifdown, qdev->ndev, |
3833 | "Unsupported WOL paramter. qdev->wol = 0x%x.\n", | |
3834 | qdev->wol); | |
bc083ce9 RM |
3835 | return -EINVAL; |
3836 | } | |
3837 | ||
3838 | if (qdev->wol & WAKE_MAGIC) { | |
3839 | status = ql_mb_wol_set_magic(qdev, 1); | |
3840 | if (status) { | |
ae9540f7 JP |
3841 | netif_err(qdev, ifdown, qdev->ndev, |
3842 | "Failed to set magic packet on %s.\n", | |
3843 | qdev->ndev->name); | |
bc083ce9 RM |
3844 | return status; |
3845 | } else | |
ae9540f7 JP |
3846 | netif_info(qdev, drv, qdev->ndev, |
3847 | "Enabled magic packet successfully on %s.\n", | |
3848 | qdev->ndev->name); | |
bc083ce9 RM |
3849 | |
3850 | wol |= MB_WOL_MAGIC_PKT; | |
3851 | } | |
3852 | ||
3853 | if (qdev->wol) { | |
bc083ce9 RM |
3854 | wol |= MB_WOL_MODE_ON; |
3855 | status = ql_mb_wol_mode(qdev, wol); | |
ae9540f7 JP |
3856 | netif_err(qdev, drv, qdev->ndev, |
3857 | "WOL %s (wol code 0x%x) on %s\n", | |
3858 | (status == 0) ? "Sucessfully set" : "Failed", | |
3859 | wol, qdev->ndev->name); | |
bc083ce9 RM |
3860 | } |
3861 | ||
3862 | return status; | |
3863 | } | |
3864 | ||
c4e84bde RM |
3865 | static int ql_adapter_down(struct ql_adapter *qdev) |
3866 | { | |
c4e84bde | 3867 | int i, status = 0; |
c4e84bde | 3868 | |
6a473308 | 3869 | ql_link_off(qdev); |
c4e84bde | 3870 | |
6497b607 RM |
3871 | /* Don't kill the reset worker thread if we |
3872 | * are in the process of recovery. | |
3873 | */ | |
3874 | if (test_bit(QL_ADAPTER_UP, &qdev->flags)) | |
3875 | cancel_delayed_work_sync(&qdev->asic_reset_work); | |
c4e84bde RM |
3876 | cancel_delayed_work_sync(&qdev->mpi_reset_work); |
3877 | cancel_delayed_work_sync(&qdev->mpi_work); | |
2ee1e272 | 3878 | cancel_delayed_work_sync(&qdev->mpi_idc_work); |
8aae2600 | 3879 | cancel_delayed_work_sync(&qdev->mpi_core_to_log); |
bcc2cb3b | 3880 | cancel_delayed_work_sync(&qdev->mpi_port_cfg_work); |
c4e84bde | 3881 | |
39aa8165 RM |
3882 | for (i = 0; i < qdev->rss_ring_count; i++) |
3883 | napi_disable(&qdev->rx_ring[i].napi); | |
c4e84bde RM |
3884 | |
3885 | clear_bit(QL_ADAPTER_UP, &qdev->flags); | |
3886 | ||
3887 | ql_disable_interrupts(qdev); | |
3888 | ||
3889 | ql_tx_ring_clean(qdev); | |
3890 | ||
6b318cb3 RM |
3891 | /* Call netif_napi_del() from common point. |
3892 | */ | |
b2014ff8 | 3893 | for (i = 0; i < qdev->rss_ring_count; i++) |
6b318cb3 RM |
3894 | netif_napi_del(&qdev->rx_ring[i].napi); |
3895 | ||
4545a3f2 | 3896 | ql_free_rx_buffers(qdev); |
2d6a5e95 | 3897 | |
c4e84bde RM |
3898 | status = ql_adapter_reset(qdev); |
3899 | if (status) | |
ae9540f7 JP |
3900 | netif_err(qdev, ifdown, qdev->ndev, "reset(func #%d) FAILED!\n", |
3901 | qdev->func); | |
c4e84bde RM |
3902 | return status; |
3903 | } | |
3904 | ||
3905 | static int ql_adapter_up(struct ql_adapter *qdev) | |
3906 | { | |
3907 | int err = 0; | |
3908 | ||
c4e84bde RM |
3909 | err = ql_adapter_initialize(qdev); |
3910 | if (err) { | |
ae9540f7 | 3911 | netif_info(qdev, ifup, qdev->ndev, "Unable to initialize adapter.\n"); |
c4e84bde RM |
3912 | goto err_init; |
3913 | } | |
c4e84bde | 3914 | set_bit(QL_ADAPTER_UP, &qdev->flags); |
4545a3f2 | 3915 | ql_alloc_rx_buffers(qdev); |
8b007de1 RM |
3916 | /* If the port is initialized and the |
3917 | * link is up the turn on the carrier. | |
3918 | */ | |
3919 | if ((ql_read32(qdev, STS) & qdev->port_init) && | |
3920 | (ql_read32(qdev, STS) & qdev->port_link_up)) | |
6a473308 | 3921 | ql_link_on(qdev); |
c4e84bde RM |
3922 | ql_enable_interrupts(qdev); |
3923 | ql_enable_all_completion_interrupts(qdev); | |
1e213303 | 3924 | netif_tx_start_all_queues(qdev->ndev); |
c4e84bde RM |
3925 | |
3926 | return 0; | |
3927 | err_init: | |
3928 | ql_adapter_reset(qdev); | |
3929 | return err; | |
3930 | } | |
3931 | ||
c4e84bde RM |
3932 | static void ql_release_adapter_resources(struct ql_adapter *qdev) |
3933 | { | |
3934 | ql_free_mem_resources(qdev); | |
3935 | ql_free_irq(qdev); | |
3936 | } | |
3937 | ||
3938 | static int ql_get_adapter_resources(struct ql_adapter *qdev) | |
3939 | { | |
3940 | int status = 0; | |
3941 | ||
3942 | if (ql_alloc_mem_resources(qdev)) { | |
ae9540f7 | 3943 | netif_err(qdev, ifup, qdev->ndev, "Unable to allocate memory.\n"); |
c4e84bde RM |
3944 | return -ENOMEM; |
3945 | } | |
3946 | status = ql_request_irq(qdev); | |
c4e84bde RM |
3947 | return status; |
3948 | } | |
3949 | ||
3950 | static int qlge_close(struct net_device *ndev) | |
3951 | { | |
3952 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3953 | ||
4bbd1a19 RM |
3954 | /* If we hit pci_channel_io_perm_failure |
3955 | * failure condition, then we already | |
3956 | * brought the adapter down. | |
3957 | */ | |
3958 | if (test_bit(QL_EEH_FATAL, &qdev->flags)) { | |
ae9540f7 | 3959 | netif_err(qdev, drv, qdev->ndev, "EEH fatal did unload.\n"); |
4bbd1a19 RM |
3960 | clear_bit(QL_EEH_FATAL, &qdev->flags); |
3961 | return 0; | |
3962 | } | |
3963 | ||
c4e84bde RM |
3964 | /* |
3965 | * Wait for device to recover from a reset. | |
3966 | * (Rarely happens, but possible.) | |
3967 | */ | |
3968 | while (!test_bit(QL_ADAPTER_UP, &qdev->flags)) | |
3969 | msleep(1); | |
3970 | ql_adapter_down(qdev); | |
3971 | ql_release_adapter_resources(qdev); | |
c4e84bde RM |
3972 | return 0; |
3973 | } | |
3974 | ||
3975 | static int ql_configure_rings(struct ql_adapter *qdev) | |
3976 | { | |
3977 | int i; | |
3978 | struct rx_ring *rx_ring; | |
3979 | struct tx_ring *tx_ring; | |
a4ab6137 | 3980 | int cpu_cnt = min(MAX_CPUS, (int)num_online_cpus()); |
7c734359 RM |
3981 | unsigned int lbq_buf_len = (qdev->ndev->mtu > 1500) ? |
3982 | LARGE_BUFFER_MAX_SIZE : LARGE_BUFFER_MIN_SIZE; | |
3983 | ||
3984 | qdev->lbq_buf_order = get_order(lbq_buf_len); | |
a4ab6137 RM |
3985 | |
3986 | /* In a perfect world we have one RSS ring for each CPU | |
3987 | * and each has it's own vector. To do that we ask for | |
3988 | * cpu_cnt vectors. ql_enable_msix() will adjust the | |
3989 | * vector count to what we actually get. We then | |
3990 | * allocate an RSS ring for each. | |
3991 | * Essentially, we are doing min(cpu_count, msix_vector_count). | |
c4e84bde | 3992 | */ |
a4ab6137 RM |
3993 | qdev->intr_count = cpu_cnt; |
3994 | ql_enable_msix(qdev); | |
3995 | /* Adjust the RSS ring count to the actual vector count. */ | |
3996 | qdev->rss_ring_count = qdev->intr_count; | |
c4e84bde | 3997 | qdev->tx_ring_count = cpu_cnt; |
b2014ff8 | 3998 | qdev->rx_ring_count = qdev->tx_ring_count + qdev->rss_ring_count; |
c4e84bde | 3999 | |
c4e84bde RM |
4000 | for (i = 0; i < qdev->tx_ring_count; i++) { |
4001 | tx_ring = &qdev->tx_ring[i]; | |
e332471c | 4002 | memset((void *)tx_ring, 0, sizeof(*tx_ring)); |
c4e84bde RM |
4003 | tx_ring->qdev = qdev; |
4004 | tx_ring->wq_id = i; | |
4005 | tx_ring->wq_len = qdev->tx_ring_size; | |
4006 | tx_ring->wq_size = | |
4007 | tx_ring->wq_len * sizeof(struct ob_mac_iocb_req); | |
4008 | ||
4009 | /* | |
4010 | * The completion queue ID for the tx rings start | |
39aa8165 | 4011 | * immediately after the rss rings. |
c4e84bde | 4012 | */ |
39aa8165 | 4013 | tx_ring->cq_id = qdev->rss_ring_count + i; |
c4e84bde RM |
4014 | } |
4015 | ||
4016 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
4017 | rx_ring = &qdev->rx_ring[i]; | |
e332471c | 4018 | memset((void *)rx_ring, 0, sizeof(*rx_ring)); |
c4e84bde RM |
4019 | rx_ring->qdev = qdev; |
4020 | rx_ring->cq_id = i; | |
4021 | rx_ring->cpu = i % cpu_cnt; /* CPU to run handler on. */ | |
b2014ff8 | 4022 | if (i < qdev->rss_ring_count) { |
39aa8165 RM |
4023 | /* |
4024 | * Inbound (RSS) queues. | |
4025 | */ | |
c4e84bde RM |
4026 | rx_ring->cq_len = qdev->rx_ring_size; |
4027 | rx_ring->cq_size = | |
4028 | rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb); | |
4029 | rx_ring->lbq_len = NUM_LARGE_BUFFERS; | |
4030 | rx_ring->lbq_size = | |
2c9a0d41 | 4031 | rx_ring->lbq_len * sizeof(__le64); |
7c734359 | 4032 | rx_ring->lbq_buf_size = (u16)lbq_buf_len; |
ae9540f7 JP |
4033 | netif_printk(qdev, ifup, KERN_DEBUG, qdev->ndev, |
4034 | "lbq_buf_size %d, order = %d\n", | |
4035 | rx_ring->lbq_buf_size, | |
4036 | qdev->lbq_buf_order); | |
c4e84bde RM |
4037 | rx_ring->sbq_len = NUM_SMALL_BUFFERS; |
4038 | rx_ring->sbq_size = | |
2c9a0d41 | 4039 | rx_ring->sbq_len * sizeof(__le64); |
52e55f3c | 4040 | rx_ring->sbq_buf_size = SMALL_BUF_MAP_SIZE; |
b2014ff8 RM |
4041 | rx_ring->type = RX_Q; |
4042 | } else { | |
c4e84bde RM |
4043 | /* |
4044 | * Outbound queue handles outbound completions only. | |
4045 | */ | |
4046 | /* outbound cq is same size as tx_ring it services. */ | |
4047 | rx_ring->cq_len = qdev->tx_ring_size; | |
4048 | rx_ring->cq_size = | |
4049 | rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb); | |
4050 | rx_ring->lbq_len = 0; | |
4051 | rx_ring->lbq_size = 0; | |
4052 | rx_ring->lbq_buf_size = 0; | |
4053 | rx_ring->sbq_len = 0; | |
4054 | rx_ring->sbq_size = 0; | |
4055 | rx_ring->sbq_buf_size = 0; | |
4056 | rx_ring->type = TX_Q; | |
c4e84bde RM |
4057 | } |
4058 | } | |
4059 | return 0; | |
4060 | } | |
4061 | ||
4062 | static int qlge_open(struct net_device *ndev) | |
4063 | { | |
4064 | int err = 0; | |
4065 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4066 | ||
74e12435 RM |
4067 | err = ql_adapter_reset(qdev); |
4068 | if (err) | |
4069 | return err; | |
4070 | ||
c4e84bde RM |
4071 | err = ql_configure_rings(qdev); |
4072 | if (err) | |
4073 | return err; | |
4074 | ||
4075 | err = ql_get_adapter_resources(qdev); | |
4076 | if (err) | |
4077 | goto error_up; | |
4078 | ||
4079 | err = ql_adapter_up(qdev); | |
4080 | if (err) | |
4081 | goto error_up; | |
4082 | ||
4083 | return err; | |
4084 | ||
4085 | error_up: | |
4086 | ql_release_adapter_resources(qdev); | |
c4e84bde RM |
4087 | return err; |
4088 | } | |
4089 | ||
7c734359 RM |
4090 | static int ql_change_rx_buffers(struct ql_adapter *qdev) |
4091 | { | |
4092 | struct rx_ring *rx_ring; | |
4093 | int i, status; | |
4094 | u32 lbq_buf_len; | |
4095 | ||
4096 | /* Wait for an oustanding reset to complete. */ | |
4097 | if (!test_bit(QL_ADAPTER_UP, &qdev->flags)) { | |
4098 | int i = 3; | |
4099 | while (i-- && !test_bit(QL_ADAPTER_UP, &qdev->flags)) { | |
ae9540f7 JP |
4100 | netif_err(qdev, ifup, qdev->ndev, |
4101 | "Waiting for adapter UP...\n"); | |
7c734359 RM |
4102 | ssleep(1); |
4103 | } | |
4104 | ||
4105 | if (!i) { | |
ae9540f7 JP |
4106 | netif_err(qdev, ifup, qdev->ndev, |
4107 | "Timed out waiting for adapter UP\n"); | |
7c734359 RM |
4108 | return -ETIMEDOUT; |
4109 | } | |
4110 | } | |
4111 | ||
4112 | status = ql_adapter_down(qdev); | |
4113 | if (status) | |
4114 | goto error; | |
4115 | ||
4116 | /* Get the new rx buffer size. */ | |
4117 | lbq_buf_len = (qdev->ndev->mtu > 1500) ? | |
4118 | LARGE_BUFFER_MAX_SIZE : LARGE_BUFFER_MIN_SIZE; | |
4119 | qdev->lbq_buf_order = get_order(lbq_buf_len); | |
4120 | ||
4121 | for (i = 0; i < qdev->rss_ring_count; i++) { | |
4122 | rx_ring = &qdev->rx_ring[i]; | |
4123 | /* Set the new size. */ | |
4124 | rx_ring->lbq_buf_size = lbq_buf_len; | |
4125 | } | |
4126 | ||
4127 | status = ql_adapter_up(qdev); | |
4128 | if (status) | |
4129 | goto error; | |
4130 | ||
4131 | return status; | |
4132 | error: | |
ae9540f7 JP |
4133 | netif_alert(qdev, ifup, qdev->ndev, |
4134 | "Driver up/down cycle failed, closing device.\n"); | |
7c734359 RM |
4135 | set_bit(QL_ADAPTER_UP, &qdev->flags); |
4136 | dev_close(qdev->ndev); | |
4137 | return status; | |
4138 | } | |
4139 | ||
c4e84bde RM |
4140 | static int qlge_change_mtu(struct net_device *ndev, int new_mtu) |
4141 | { | |
4142 | struct ql_adapter *qdev = netdev_priv(ndev); | |
7c734359 | 4143 | int status; |
c4e84bde RM |
4144 | |
4145 | if (ndev->mtu == 1500 && new_mtu == 9000) { | |
ae9540f7 | 4146 | netif_err(qdev, ifup, qdev->ndev, "Changing to jumbo MTU.\n"); |
c4e84bde | 4147 | } else if (ndev->mtu == 9000 && new_mtu == 1500) { |
ae9540f7 | 4148 | netif_err(qdev, ifup, qdev->ndev, "Changing to normal MTU.\n"); |
c4e84bde RM |
4149 | } else |
4150 | return -EINVAL; | |
7c734359 RM |
4151 | |
4152 | queue_delayed_work(qdev->workqueue, | |
4153 | &qdev->mpi_port_cfg_work, 3*HZ); | |
4154 | ||
746079da BL |
4155 | ndev->mtu = new_mtu; |
4156 | ||
7c734359 | 4157 | if (!netif_running(qdev->ndev)) { |
7c734359 RM |
4158 | return 0; |
4159 | } | |
4160 | ||
7c734359 RM |
4161 | status = ql_change_rx_buffers(qdev); |
4162 | if (status) { | |
ae9540f7 JP |
4163 | netif_err(qdev, ifup, qdev->ndev, |
4164 | "Changing MTU failed.\n"); | |
7c734359 RM |
4165 | } |
4166 | ||
4167 | return status; | |
c4e84bde RM |
4168 | } |
4169 | ||
4170 | static struct net_device_stats *qlge_get_stats(struct net_device | |
4171 | *ndev) | |
4172 | { | |
885ee398 RM |
4173 | struct ql_adapter *qdev = netdev_priv(ndev); |
4174 | struct rx_ring *rx_ring = &qdev->rx_ring[0]; | |
4175 | struct tx_ring *tx_ring = &qdev->tx_ring[0]; | |
4176 | unsigned long pkts, mcast, dropped, errors, bytes; | |
4177 | int i; | |
4178 | ||
4179 | /* Get RX stats. */ | |
4180 | pkts = mcast = dropped = errors = bytes = 0; | |
4181 | for (i = 0; i < qdev->rss_ring_count; i++, rx_ring++) { | |
4182 | pkts += rx_ring->rx_packets; | |
4183 | bytes += rx_ring->rx_bytes; | |
4184 | dropped += rx_ring->rx_dropped; | |
4185 | errors += rx_ring->rx_errors; | |
4186 | mcast += rx_ring->rx_multicast; | |
4187 | } | |
4188 | ndev->stats.rx_packets = pkts; | |
4189 | ndev->stats.rx_bytes = bytes; | |
4190 | ndev->stats.rx_dropped = dropped; | |
4191 | ndev->stats.rx_errors = errors; | |
4192 | ndev->stats.multicast = mcast; | |
4193 | ||
4194 | /* Get TX stats. */ | |
4195 | pkts = errors = bytes = 0; | |
4196 | for (i = 0; i < qdev->tx_ring_count; i++, tx_ring++) { | |
4197 | pkts += tx_ring->tx_packets; | |
4198 | bytes += tx_ring->tx_bytes; | |
4199 | errors += tx_ring->tx_errors; | |
4200 | } | |
4201 | ndev->stats.tx_packets = pkts; | |
4202 | ndev->stats.tx_bytes = bytes; | |
4203 | ndev->stats.tx_errors = errors; | |
bcc90f55 | 4204 | return &ndev->stats; |
c4e84bde RM |
4205 | } |
4206 | ||
4207 | static void qlge_set_multicast_list(struct net_device *ndev) | |
4208 | { | |
4209 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
4210 | struct dev_mc_list *mc_ptr; | |
cc288f54 | 4211 | int i, status; |
c4e84bde | 4212 | |
cc288f54 RM |
4213 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
4214 | if (status) | |
4215 | return; | |
c4e84bde RM |
4216 | /* |
4217 | * Set or clear promiscuous mode if a | |
4218 | * transition is taking place. | |
4219 | */ | |
4220 | if (ndev->flags & IFF_PROMISC) { | |
4221 | if (!test_bit(QL_PROMISCUOUS, &qdev->flags)) { | |
4222 | if (ql_set_routing_reg | |
4223 | (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 1)) { | |
ae9540f7 JP |
4224 | netif_err(qdev, hw, qdev->ndev, |
4225 | "Failed to set promiscous mode.\n"); | |
c4e84bde RM |
4226 | } else { |
4227 | set_bit(QL_PROMISCUOUS, &qdev->flags); | |
4228 | } | |
4229 | } | |
4230 | } else { | |
4231 | if (test_bit(QL_PROMISCUOUS, &qdev->flags)) { | |
4232 | if (ql_set_routing_reg | |
4233 | (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 0)) { | |
ae9540f7 JP |
4234 | netif_err(qdev, hw, qdev->ndev, |
4235 | "Failed to clear promiscous mode.\n"); | |
c4e84bde RM |
4236 | } else { |
4237 | clear_bit(QL_PROMISCUOUS, &qdev->flags); | |
4238 | } | |
4239 | } | |
4240 | } | |
4241 | ||
4242 | /* | |
4243 | * Set or clear all multicast mode if a | |
4244 | * transition is taking place. | |
4245 | */ | |
4246 | if ((ndev->flags & IFF_ALLMULTI) || | |
4cd24eaf | 4247 | (netdev_mc_count(ndev) > MAX_MULTICAST_ENTRIES)) { |
c4e84bde RM |
4248 | if (!test_bit(QL_ALLMULTI, &qdev->flags)) { |
4249 | if (ql_set_routing_reg | |
4250 | (qdev, RT_IDX_ALLMULTI_SLOT, RT_IDX_MCAST, 1)) { | |
ae9540f7 JP |
4251 | netif_err(qdev, hw, qdev->ndev, |
4252 | "Failed to set all-multi mode.\n"); | |
c4e84bde RM |
4253 | } else { |
4254 | set_bit(QL_ALLMULTI, &qdev->flags); | |
4255 | } | |
4256 | } | |
4257 | } else { | |
4258 | if (test_bit(QL_ALLMULTI, &qdev->flags)) { | |
4259 | if (ql_set_routing_reg | |
4260 | (qdev, RT_IDX_ALLMULTI_SLOT, RT_IDX_MCAST, 0)) { | |
ae9540f7 JP |
4261 | netif_err(qdev, hw, qdev->ndev, |
4262 | "Failed to clear all-multi mode.\n"); | |
c4e84bde RM |
4263 | } else { |
4264 | clear_bit(QL_ALLMULTI, &qdev->flags); | |
4265 | } | |
4266 | } | |
4267 | } | |
4268 | ||
4cd24eaf | 4269 | if (!netdev_mc_empty(ndev)) { |
cc288f54 RM |
4270 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
4271 | if (status) | |
4272 | goto exit; | |
f9dcbcc9 JP |
4273 | i = 0; |
4274 | netdev_for_each_mc_addr(mc_ptr, ndev) { | |
c4e84bde RM |
4275 | if (ql_set_mac_addr_reg(qdev, (u8 *) mc_ptr->dmi_addr, |
4276 | MAC_ADDR_TYPE_MULTI_MAC, i)) { | |
ae9540f7 JP |
4277 | netif_err(qdev, hw, qdev->ndev, |
4278 | "Failed to loadmulticast address.\n"); | |
cc288f54 | 4279 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
4280 | goto exit; |
4281 | } | |
f9dcbcc9 JP |
4282 | i++; |
4283 | } | |
cc288f54 | 4284 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
4285 | if (ql_set_routing_reg |
4286 | (qdev, RT_IDX_MCAST_MATCH_SLOT, RT_IDX_MCAST_MATCH, 1)) { | |
ae9540f7 JP |
4287 | netif_err(qdev, hw, qdev->ndev, |
4288 | "Failed to set multicast match mode.\n"); | |
c4e84bde RM |
4289 | } else { |
4290 | set_bit(QL_ALLMULTI, &qdev->flags); | |
4291 | } | |
4292 | } | |
4293 | exit: | |
8587ea35 | 4294 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); |
c4e84bde RM |
4295 | } |
4296 | ||
4297 | static int qlge_set_mac_address(struct net_device *ndev, void *p) | |
4298 | { | |
4299 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
4300 | struct sockaddr *addr = p; | |
cc288f54 | 4301 | int status; |
c4e84bde | 4302 | |
c4e84bde RM |
4303 | if (!is_valid_ether_addr(addr->sa_data)) |
4304 | return -EADDRNOTAVAIL; | |
4305 | memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len); | |
801e9096 RM |
4306 | /* Update local copy of current mac address. */ |
4307 | memcpy(qdev->current_mac_addr, ndev->dev_addr, ndev->addr_len); | |
c4e84bde | 4308 | |
cc288f54 RM |
4309 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
4310 | if (status) | |
4311 | return status; | |
cc288f54 RM |
4312 | status = ql_set_mac_addr_reg(qdev, (u8 *) ndev->dev_addr, |
4313 | MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ); | |
cc288f54 | 4314 | if (status) |
ae9540f7 | 4315 | netif_err(qdev, hw, qdev->ndev, "Failed to load MAC address.\n"); |
cc288f54 RM |
4316 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
4317 | return status; | |
c4e84bde RM |
4318 | } |
4319 | ||
4320 | static void qlge_tx_timeout(struct net_device *ndev) | |
4321 | { | |
4322 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
6497b607 | 4323 | ql_queue_asic_error(qdev); |
c4e84bde RM |
4324 | } |
4325 | ||
4326 | static void ql_asic_reset_work(struct work_struct *work) | |
4327 | { | |
4328 | struct ql_adapter *qdev = | |
4329 | container_of(work, struct ql_adapter, asic_reset_work.work); | |
db98812f | 4330 | int status; |
f2c0d8df | 4331 | rtnl_lock(); |
db98812f RM |
4332 | status = ql_adapter_down(qdev); |
4333 | if (status) | |
4334 | goto error; | |
4335 | ||
4336 | status = ql_adapter_up(qdev); | |
4337 | if (status) | |
4338 | goto error; | |
2cd6dbaa RM |
4339 | |
4340 | /* Restore rx mode. */ | |
4341 | clear_bit(QL_ALLMULTI, &qdev->flags); | |
4342 | clear_bit(QL_PROMISCUOUS, &qdev->flags); | |
4343 | qlge_set_multicast_list(qdev->ndev); | |
4344 | ||
f2c0d8df | 4345 | rtnl_unlock(); |
db98812f RM |
4346 | return; |
4347 | error: | |
ae9540f7 JP |
4348 | netif_alert(qdev, ifup, qdev->ndev, |
4349 | "Driver up/down cycle failed, closing device\n"); | |
f2c0d8df | 4350 | |
db98812f RM |
4351 | set_bit(QL_ADAPTER_UP, &qdev->flags); |
4352 | dev_close(qdev->ndev); | |
4353 | rtnl_unlock(); | |
c4e84bde RM |
4354 | } |
4355 | ||
b0c2aadf RM |
4356 | static struct nic_operations qla8012_nic_ops = { |
4357 | .get_flash = ql_get_8012_flash_params, | |
4358 | .port_initialize = ql_8012_port_initialize, | |
4359 | }; | |
4360 | ||
cdca8d02 RM |
4361 | static struct nic_operations qla8000_nic_ops = { |
4362 | .get_flash = ql_get_8000_flash_params, | |
4363 | .port_initialize = ql_8000_port_initialize, | |
4364 | }; | |
4365 | ||
e4552f51 RM |
4366 | /* Find the pcie function number for the other NIC |
4367 | * on this chip. Since both NIC functions share a | |
4368 | * common firmware we have the lowest enabled function | |
4369 | * do any common work. Examples would be resetting | |
4370 | * after a fatal firmware error, or doing a firmware | |
4371 | * coredump. | |
4372 | */ | |
4373 | static int ql_get_alt_pcie_func(struct ql_adapter *qdev) | |
4374 | { | |
4375 | int status = 0; | |
4376 | u32 temp; | |
4377 | u32 nic_func1, nic_func2; | |
4378 | ||
4379 | status = ql_read_mpi_reg(qdev, MPI_TEST_FUNC_PORT_CFG, | |
4380 | &temp); | |
4381 | if (status) | |
4382 | return status; | |
4383 | ||
4384 | nic_func1 = ((temp >> MPI_TEST_NIC1_FUNC_SHIFT) & | |
4385 | MPI_TEST_NIC_FUNC_MASK); | |
4386 | nic_func2 = ((temp >> MPI_TEST_NIC2_FUNC_SHIFT) & | |
4387 | MPI_TEST_NIC_FUNC_MASK); | |
4388 | ||
4389 | if (qdev->func == nic_func1) | |
4390 | qdev->alt_func = nic_func2; | |
4391 | else if (qdev->func == nic_func2) | |
4392 | qdev->alt_func = nic_func1; | |
4393 | else | |
4394 | status = -EIO; | |
4395 | ||
4396 | return status; | |
4397 | } | |
b0c2aadf | 4398 | |
e4552f51 | 4399 | static int ql_get_board_info(struct ql_adapter *qdev) |
c4e84bde | 4400 | { |
e4552f51 | 4401 | int status; |
c4e84bde RM |
4402 | qdev->func = |
4403 | (ql_read32(qdev, STS) & STS_FUNC_ID_MASK) >> STS_FUNC_ID_SHIFT; | |
e4552f51 RM |
4404 | if (qdev->func > 3) |
4405 | return -EIO; | |
4406 | ||
4407 | status = ql_get_alt_pcie_func(qdev); | |
4408 | if (status) | |
4409 | return status; | |
4410 | ||
4411 | qdev->port = (qdev->func < qdev->alt_func) ? 0 : 1; | |
4412 | if (qdev->port) { | |
c4e84bde RM |
4413 | qdev->xg_sem_mask = SEM_XGMAC1_MASK; |
4414 | qdev->port_link_up = STS_PL1; | |
4415 | qdev->port_init = STS_PI1; | |
4416 | qdev->mailbox_in = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC2_MBI; | |
4417 | qdev->mailbox_out = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC2_MBO; | |
4418 | } else { | |
4419 | qdev->xg_sem_mask = SEM_XGMAC0_MASK; | |
4420 | qdev->port_link_up = STS_PL0; | |
4421 | qdev->port_init = STS_PI0; | |
4422 | qdev->mailbox_in = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC0_MBI; | |
4423 | qdev->mailbox_out = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC0_MBO; | |
4424 | } | |
4425 | qdev->chip_rev_id = ql_read32(qdev, REV_ID); | |
b0c2aadf RM |
4426 | qdev->device_id = qdev->pdev->device; |
4427 | if (qdev->device_id == QLGE_DEVICE_ID_8012) | |
4428 | qdev->nic_ops = &qla8012_nic_ops; | |
cdca8d02 RM |
4429 | else if (qdev->device_id == QLGE_DEVICE_ID_8000) |
4430 | qdev->nic_ops = &qla8000_nic_ops; | |
e4552f51 | 4431 | return status; |
c4e84bde RM |
4432 | } |
4433 | ||
4434 | static void ql_release_all(struct pci_dev *pdev) | |
4435 | { | |
4436 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4437 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4438 | ||
4439 | if (qdev->workqueue) { | |
4440 | destroy_workqueue(qdev->workqueue); | |
4441 | qdev->workqueue = NULL; | |
4442 | } | |
39aa8165 | 4443 | |
c4e84bde | 4444 | if (qdev->reg_base) |
8668ae92 | 4445 | iounmap(qdev->reg_base); |
c4e84bde RM |
4446 | if (qdev->doorbell_area) |
4447 | iounmap(qdev->doorbell_area); | |
8aae2600 | 4448 | vfree(qdev->mpi_coredump); |
c4e84bde RM |
4449 | pci_release_regions(pdev); |
4450 | pci_set_drvdata(pdev, NULL); | |
4451 | } | |
4452 | ||
4453 | static int __devinit ql_init_device(struct pci_dev *pdev, | |
4454 | struct net_device *ndev, int cards_found) | |
4455 | { | |
4456 | struct ql_adapter *qdev = netdev_priv(ndev); | |
1d1023d0 | 4457 | int err = 0; |
c4e84bde | 4458 | |
e332471c | 4459 | memset((void *)qdev, 0, sizeof(*qdev)); |
c4e84bde RM |
4460 | err = pci_enable_device(pdev); |
4461 | if (err) { | |
4462 | dev_err(&pdev->dev, "PCI device enable failed.\n"); | |
4463 | return err; | |
4464 | } | |
4465 | ||
ebd6e774 RM |
4466 | qdev->ndev = ndev; |
4467 | qdev->pdev = pdev; | |
4468 | pci_set_drvdata(pdev, ndev); | |
c4e84bde | 4469 | |
bc9167f3 RM |
4470 | /* Set PCIe read request size */ |
4471 | err = pcie_set_readrq(pdev, 4096); | |
4472 | if (err) { | |
4473 | dev_err(&pdev->dev, "Set readrq failed.\n"); | |
4f9a91c8 | 4474 | goto err_out1; |
bc9167f3 RM |
4475 | } |
4476 | ||
c4e84bde RM |
4477 | err = pci_request_regions(pdev, DRV_NAME); |
4478 | if (err) { | |
4479 | dev_err(&pdev->dev, "PCI region request failed.\n"); | |
ebd6e774 | 4480 | return err; |
c4e84bde RM |
4481 | } |
4482 | ||
4483 | pci_set_master(pdev); | |
6a35528a | 4484 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
c4e84bde | 4485 | set_bit(QL_DMA64, &qdev->flags); |
6a35528a | 4486 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
c4e84bde | 4487 | } else { |
284901a9 | 4488 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
c4e84bde | 4489 | if (!err) |
284901a9 | 4490 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
c4e84bde RM |
4491 | } |
4492 | ||
4493 | if (err) { | |
4494 | dev_err(&pdev->dev, "No usable DMA configuration.\n"); | |
4f9a91c8 | 4495 | goto err_out2; |
c4e84bde RM |
4496 | } |
4497 | ||
73475339 RM |
4498 | /* Set PCIe reset type for EEH to fundamental. */ |
4499 | pdev->needs_freset = 1; | |
6d190c6e | 4500 | pci_save_state(pdev); |
c4e84bde RM |
4501 | qdev->reg_base = |
4502 | ioremap_nocache(pci_resource_start(pdev, 1), | |
4503 | pci_resource_len(pdev, 1)); | |
4504 | if (!qdev->reg_base) { | |
4505 | dev_err(&pdev->dev, "Register mapping failed.\n"); | |
4506 | err = -ENOMEM; | |
4f9a91c8 | 4507 | goto err_out2; |
c4e84bde RM |
4508 | } |
4509 | ||
4510 | qdev->doorbell_area_size = pci_resource_len(pdev, 3); | |
4511 | qdev->doorbell_area = | |
4512 | ioremap_nocache(pci_resource_start(pdev, 3), | |
4513 | pci_resource_len(pdev, 3)); | |
4514 | if (!qdev->doorbell_area) { | |
4515 | dev_err(&pdev->dev, "Doorbell register mapping failed.\n"); | |
4516 | err = -ENOMEM; | |
4f9a91c8 | 4517 | goto err_out2; |
c4e84bde RM |
4518 | } |
4519 | ||
e4552f51 RM |
4520 | err = ql_get_board_info(qdev); |
4521 | if (err) { | |
4522 | dev_err(&pdev->dev, "Register access failed.\n"); | |
4523 | err = -EIO; | |
4f9a91c8 | 4524 | goto err_out2; |
e4552f51 | 4525 | } |
c4e84bde RM |
4526 | qdev->msg_enable = netif_msg_init(debug, default_msg); |
4527 | spin_lock_init(&qdev->hw_lock); | |
4528 | spin_lock_init(&qdev->stats_lock); | |
4529 | ||
8aae2600 RM |
4530 | if (qlge_mpi_coredump) { |
4531 | qdev->mpi_coredump = | |
4532 | vmalloc(sizeof(struct ql_mpi_coredump)); | |
4533 | if (qdev->mpi_coredump == NULL) { | |
4534 | dev_err(&pdev->dev, "Coredump alloc failed.\n"); | |
4535 | err = -ENOMEM; | |
ce96bc86 | 4536 | goto err_out2; |
8aae2600 | 4537 | } |
d5c1da56 RM |
4538 | if (qlge_force_coredump) |
4539 | set_bit(QL_FRC_COREDUMP, &qdev->flags); | |
8aae2600 | 4540 | } |
c4e84bde | 4541 | /* make sure the EEPROM is good */ |
b0c2aadf | 4542 | err = qdev->nic_ops->get_flash(qdev); |
c4e84bde RM |
4543 | if (err) { |
4544 | dev_err(&pdev->dev, "Invalid FLASH.\n"); | |
4f9a91c8 | 4545 | goto err_out2; |
c4e84bde RM |
4546 | } |
4547 | ||
c4e84bde | 4548 | memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len); |
801e9096 RM |
4549 | /* Keep local copy of current mac address. */ |
4550 | memcpy(qdev->current_mac_addr, ndev->dev_addr, ndev->addr_len); | |
c4e84bde RM |
4551 | |
4552 | /* Set up the default ring sizes. */ | |
4553 | qdev->tx_ring_size = NUM_TX_RING_ENTRIES; | |
4554 | qdev->rx_ring_size = NUM_RX_RING_ENTRIES; | |
4555 | ||
4556 | /* Set up the coalescing parameters. */ | |
4557 | qdev->rx_coalesce_usecs = DFLT_COALESCE_WAIT; | |
4558 | qdev->tx_coalesce_usecs = DFLT_COALESCE_WAIT; | |
4559 | qdev->rx_max_coalesced_frames = DFLT_INTER_FRAME_WAIT; | |
4560 | qdev->tx_max_coalesced_frames = DFLT_INTER_FRAME_WAIT; | |
4561 | ||
4562 | /* | |
4563 | * Set up the operating parameters. | |
4564 | */ | |
4565 | qdev->rx_csum = 1; | |
c4e84bde RM |
4566 | qdev->workqueue = create_singlethread_workqueue(ndev->name); |
4567 | INIT_DELAYED_WORK(&qdev->asic_reset_work, ql_asic_reset_work); | |
4568 | INIT_DELAYED_WORK(&qdev->mpi_reset_work, ql_mpi_reset_work); | |
4569 | INIT_DELAYED_WORK(&qdev->mpi_work, ql_mpi_work); | |
bcc2cb3b | 4570 | INIT_DELAYED_WORK(&qdev->mpi_port_cfg_work, ql_mpi_port_cfg_work); |
2ee1e272 | 4571 | INIT_DELAYED_WORK(&qdev->mpi_idc_work, ql_mpi_idc_work); |
8aae2600 | 4572 | INIT_DELAYED_WORK(&qdev->mpi_core_to_log, ql_mpi_core_to_log); |
bcc2cb3b | 4573 | init_completion(&qdev->ide_completion); |
c4e84bde RM |
4574 | |
4575 | if (!cards_found) { | |
4576 | dev_info(&pdev->dev, "%s\n", DRV_STRING); | |
4577 | dev_info(&pdev->dev, "Driver name: %s, Version: %s.\n", | |
4578 | DRV_NAME, DRV_VERSION); | |
4579 | } | |
4580 | return 0; | |
4f9a91c8 | 4581 | err_out2: |
c4e84bde | 4582 | ql_release_all(pdev); |
4f9a91c8 | 4583 | err_out1: |
c4e84bde RM |
4584 | pci_disable_device(pdev); |
4585 | return err; | |
4586 | } | |
4587 | ||
25ed7849 SH |
4588 | static const struct net_device_ops qlge_netdev_ops = { |
4589 | .ndo_open = qlge_open, | |
4590 | .ndo_stop = qlge_close, | |
4591 | .ndo_start_xmit = qlge_send, | |
4592 | .ndo_change_mtu = qlge_change_mtu, | |
4593 | .ndo_get_stats = qlge_get_stats, | |
4594 | .ndo_set_multicast_list = qlge_set_multicast_list, | |
4595 | .ndo_set_mac_address = qlge_set_mac_address, | |
4596 | .ndo_validate_addr = eth_validate_addr, | |
4597 | .ndo_tx_timeout = qlge_tx_timeout, | |
01e6b953 RM |
4598 | .ndo_vlan_rx_register = qlge_vlan_rx_register, |
4599 | .ndo_vlan_rx_add_vid = qlge_vlan_rx_add_vid, | |
4600 | .ndo_vlan_rx_kill_vid = qlge_vlan_rx_kill_vid, | |
25ed7849 SH |
4601 | }; |
4602 | ||
15c052fc RM |
4603 | static void ql_timer(unsigned long data) |
4604 | { | |
4605 | struct ql_adapter *qdev = (struct ql_adapter *)data; | |
4606 | u32 var = 0; | |
4607 | ||
4608 | var = ql_read32(qdev, STS); | |
4609 | if (pci_channel_offline(qdev->pdev)) { | |
ae9540f7 | 4610 | netif_err(qdev, ifup, qdev->ndev, "EEH STS = 0x%.08x.\n", var); |
15c052fc RM |
4611 | return; |
4612 | } | |
4613 | ||
4614 | qdev->timer.expires = jiffies + (5*HZ); | |
4615 | add_timer(&qdev->timer); | |
4616 | } | |
4617 | ||
c4e84bde RM |
4618 | static int __devinit qlge_probe(struct pci_dev *pdev, |
4619 | const struct pci_device_id *pci_entry) | |
4620 | { | |
4621 | struct net_device *ndev = NULL; | |
4622 | struct ql_adapter *qdev = NULL; | |
4623 | static int cards_found = 0; | |
4624 | int err = 0; | |
4625 | ||
1e213303 RM |
4626 | ndev = alloc_etherdev_mq(sizeof(struct ql_adapter), |
4627 | min(MAX_CPUS, (int)num_online_cpus())); | |
c4e84bde RM |
4628 | if (!ndev) |
4629 | return -ENOMEM; | |
4630 | ||
4631 | err = ql_init_device(pdev, ndev, cards_found); | |
4632 | if (err < 0) { | |
4633 | free_netdev(ndev); | |
4634 | return err; | |
4635 | } | |
4636 | ||
4637 | qdev = netdev_priv(ndev); | |
4638 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
4639 | ndev->features = (0 | |
4640 | | NETIF_F_IP_CSUM | |
4641 | | NETIF_F_SG | |
4642 | | NETIF_F_TSO | |
4643 | | NETIF_F_TSO6 | |
4644 | | NETIF_F_TSO_ECN | |
4645 | | NETIF_F_HW_VLAN_TX | |
4646 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER); | |
22bdd4f5 | 4647 | ndev->features |= NETIF_F_GRO; |
c4e84bde RM |
4648 | |
4649 | if (test_bit(QL_DMA64, &qdev->flags)) | |
4650 | ndev->features |= NETIF_F_HIGHDMA; | |
4651 | ||
4652 | /* | |
4653 | * Set up net_device structure. | |
4654 | */ | |
4655 | ndev->tx_queue_len = qdev->tx_ring_size; | |
4656 | ndev->irq = pdev->irq; | |
25ed7849 SH |
4657 | |
4658 | ndev->netdev_ops = &qlge_netdev_ops; | |
c4e84bde | 4659 | SET_ETHTOOL_OPS(ndev, &qlge_ethtool_ops); |
c4e84bde | 4660 | ndev->watchdog_timeo = 10 * HZ; |
25ed7849 | 4661 | |
c4e84bde RM |
4662 | err = register_netdev(ndev); |
4663 | if (err) { | |
4664 | dev_err(&pdev->dev, "net device registration failed.\n"); | |
4665 | ql_release_all(pdev); | |
4666 | pci_disable_device(pdev); | |
4667 | return err; | |
4668 | } | |
15c052fc RM |
4669 | /* Start up the timer to trigger EEH if |
4670 | * the bus goes dead | |
4671 | */ | |
4672 | init_timer_deferrable(&qdev->timer); | |
4673 | qdev->timer.data = (unsigned long)qdev; | |
4674 | qdev->timer.function = ql_timer; | |
4675 | qdev->timer.expires = jiffies + (5*HZ); | |
4676 | add_timer(&qdev->timer); | |
6a473308 | 4677 | ql_link_off(qdev); |
c4e84bde | 4678 | ql_display_dev_info(ndev); |
9dfbbaa6 | 4679 | atomic_set(&qdev->lb_count, 0); |
c4e84bde RM |
4680 | cards_found++; |
4681 | return 0; | |
4682 | } | |
4683 | ||
9dfbbaa6 RM |
4684 | netdev_tx_t ql_lb_send(struct sk_buff *skb, struct net_device *ndev) |
4685 | { | |
4686 | return qlge_send(skb, ndev); | |
4687 | } | |
4688 | ||
4689 | int ql_clean_lb_rx_ring(struct rx_ring *rx_ring, int budget) | |
4690 | { | |
4691 | return ql_clean_inbound_rx_ring(rx_ring, budget); | |
4692 | } | |
4693 | ||
c4e84bde RM |
4694 | static void __devexit qlge_remove(struct pci_dev *pdev) |
4695 | { | |
4696 | struct net_device *ndev = pci_get_drvdata(pdev); | |
15c052fc RM |
4697 | struct ql_adapter *qdev = netdev_priv(ndev); |
4698 | del_timer_sync(&qdev->timer); | |
c4e84bde RM |
4699 | unregister_netdev(ndev); |
4700 | ql_release_all(pdev); | |
4701 | pci_disable_device(pdev); | |
4702 | free_netdev(ndev); | |
4703 | } | |
4704 | ||
6d190c6e RM |
4705 | /* Clean up resources without touching hardware. */ |
4706 | static void ql_eeh_close(struct net_device *ndev) | |
4707 | { | |
4708 | int i; | |
4709 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4710 | ||
4711 | if (netif_carrier_ok(ndev)) { | |
4712 | netif_carrier_off(ndev); | |
4713 | netif_stop_queue(ndev); | |
4714 | } | |
4715 | ||
4716 | if (test_bit(QL_ADAPTER_UP, &qdev->flags)) | |
4717 | cancel_delayed_work_sync(&qdev->asic_reset_work); | |
4718 | cancel_delayed_work_sync(&qdev->mpi_reset_work); | |
4719 | cancel_delayed_work_sync(&qdev->mpi_work); | |
4720 | cancel_delayed_work_sync(&qdev->mpi_idc_work); | |
8aae2600 | 4721 | cancel_delayed_work_sync(&qdev->mpi_core_to_log); |
6d190c6e RM |
4722 | cancel_delayed_work_sync(&qdev->mpi_port_cfg_work); |
4723 | ||
4724 | for (i = 0; i < qdev->rss_ring_count; i++) | |
4725 | netif_napi_del(&qdev->rx_ring[i].napi); | |
4726 | ||
4727 | clear_bit(QL_ADAPTER_UP, &qdev->flags); | |
4728 | ql_tx_ring_clean(qdev); | |
4729 | ql_free_rx_buffers(qdev); | |
4730 | ql_release_adapter_resources(qdev); | |
4731 | } | |
4732 | ||
c4e84bde RM |
4733 | /* |
4734 | * This callback is called by the PCI subsystem whenever | |
4735 | * a PCI bus error is detected. | |
4736 | */ | |
4737 | static pci_ers_result_t qlge_io_error_detected(struct pci_dev *pdev, | |
4738 | enum pci_channel_state state) | |
4739 | { | |
4740 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4bbd1a19 | 4741 | struct ql_adapter *qdev = netdev_priv(ndev); |
fbc663ce | 4742 | |
6d190c6e RM |
4743 | switch (state) { |
4744 | case pci_channel_io_normal: | |
4745 | return PCI_ERS_RESULT_CAN_RECOVER; | |
4746 | case pci_channel_io_frozen: | |
4747 | netif_device_detach(ndev); | |
4748 | if (netif_running(ndev)) | |
4749 | ql_eeh_close(ndev); | |
4750 | pci_disable_device(pdev); | |
4751 | return PCI_ERS_RESULT_NEED_RESET; | |
4752 | case pci_channel_io_perm_failure: | |
4753 | dev_err(&pdev->dev, | |
4754 | "%s: pci_channel_io_perm_failure.\n", __func__); | |
4bbd1a19 RM |
4755 | ql_eeh_close(ndev); |
4756 | set_bit(QL_EEH_FATAL, &qdev->flags); | |
fbc663ce | 4757 | return PCI_ERS_RESULT_DISCONNECT; |
6d190c6e | 4758 | } |
c4e84bde RM |
4759 | |
4760 | /* Request a slot reset. */ | |
4761 | return PCI_ERS_RESULT_NEED_RESET; | |
4762 | } | |
4763 | ||
4764 | /* | |
4765 | * This callback is called after the PCI buss has been reset. | |
4766 | * Basically, this tries to restart the card from scratch. | |
4767 | * This is a shortened version of the device probe/discovery code, | |
4768 | * it resembles the first-half of the () routine. | |
4769 | */ | |
4770 | static pci_ers_result_t qlge_io_slot_reset(struct pci_dev *pdev) | |
4771 | { | |
4772 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4773 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4774 | ||
6d190c6e RM |
4775 | pdev->error_state = pci_channel_io_normal; |
4776 | ||
4777 | pci_restore_state(pdev); | |
c4e84bde | 4778 | if (pci_enable_device(pdev)) { |
ae9540f7 JP |
4779 | netif_err(qdev, ifup, qdev->ndev, |
4780 | "Cannot re-enable PCI device after reset.\n"); | |
c4e84bde RM |
4781 | return PCI_ERS_RESULT_DISCONNECT; |
4782 | } | |
c4e84bde | 4783 | pci_set_master(pdev); |
a112fd4c RM |
4784 | |
4785 | if (ql_adapter_reset(qdev)) { | |
ae9540f7 | 4786 | netif_err(qdev, drv, qdev->ndev, "reset FAILED!\n"); |
4bbd1a19 | 4787 | set_bit(QL_EEH_FATAL, &qdev->flags); |
a112fd4c RM |
4788 | return PCI_ERS_RESULT_DISCONNECT; |
4789 | } | |
4790 | ||
c4e84bde RM |
4791 | return PCI_ERS_RESULT_RECOVERED; |
4792 | } | |
4793 | ||
4794 | static void qlge_io_resume(struct pci_dev *pdev) | |
4795 | { | |
4796 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4797 | struct ql_adapter *qdev = netdev_priv(ndev); | |
6d190c6e | 4798 | int err = 0; |
c4e84bde | 4799 | |
c4e84bde | 4800 | if (netif_running(ndev)) { |
6d190c6e RM |
4801 | err = qlge_open(ndev); |
4802 | if (err) { | |
ae9540f7 JP |
4803 | netif_err(qdev, ifup, qdev->ndev, |
4804 | "Device initialization failed after reset.\n"); | |
c4e84bde RM |
4805 | return; |
4806 | } | |
6d190c6e | 4807 | } else { |
ae9540f7 JP |
4808 | netif_err(qdev, ifup, qdev->ndev, |
4809 | "Device was not running prior to EEH.\n"); | |
c4e84bde | 4810 | } |
15c052fc RM |
4811 | qdev->timer.expires = jiffies + (5*HZ); |
4812 | add_timer(&qdev->timer); | |
c4e84bde RM |
4813 | netif_device_attach(ndev); |
4814 | } | |
4815 | ||
4816 | static struct pci_error_handlers qlge_err_handler = { | |
4817 | .error_detected = qlge_io_error_detected, | |
4818 | .slot_reset = qlge_io_slot_reset, | |
4819 | .resume = qlge_io_resume, | |
4820 | }; | |
4821 | ||
4822 | static int qlge_suspend(struct pci_dev *pdev, pm_message_t state) | |
4823 | { | |
4824 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4825 | struct ql_adapter *qdev = netdev_priv(ndev); | |
6b318cb3 | 4826 | int err; |
c4e84bde RM |
4827 | |
4828 | netif_device_detach(ndev); | |
15c052fc | 4829 | del_timer_sync(&qdev->timer); |
c4e84bde RM |
4830 | |
4831 | if (netif_running(ndev)) { | |
4832 | err = ql_adapter_down(qdev); | |
4833 | if (!err) | |
4834 | return err; | |
4835 | } | |
4836 | ||
bc083ce9 | 4837 | ql_wol(qdev); |
c4e84bde RM |
4838 | err = pci_save_state(pdev); |
4839 | if (err) | |
4840 | return err; | |
4841 | ||
4842 | pci_disable_device(pdev); | |
4843 | ||
4844 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
4845 | ||
4846 | return 0; | |
4847 | } | |
4848 | ||
04da2cf9 | 4849 | #ifdef CONFIG_PM |
c4e84bde RM |
4850 | static int qlge_resume(struct pci_dev *pdev) |
4851 | { | |
4852 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4853 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4854 | int err; | |
4855 | ||
4856 | pci_set_power_state(pdev, PCI_D0); | |
4857 | pci_restore_state(pdev); | |
4858 | err = pci_enable_device(pdev); | |
4859 | if (err) { | |
ae9540f7 | 4860 | netif_err(qdev, ifup, qdev->ndev, "Cannot enable PCI device from suspend\n"); |
c4e84bde RM |
4861 | return err; |
4862 | } | |
4863 | pci_set_master(pdev); | |
4864 | ||
4865 | pci_enable_wake(pdev, PCI_D3hot, 0); | |
4866 | pci_enable_wake(pdev, PCI_D3cold, 0); | |
4867 | ||
4868 | if (netif_running(ndev)) { | |
4869 | err = ql_adapter_up(qdev); | |
4870 | if (err) | |
4871 | return err; | |
4872 | } | |
4873 | ||
15c052fc RM |
4874 | qdev->timer.expires = jiffies + (5*HZ); |
4875 | add_timer(&qdev->timer); | |
c4e84bde RM |
4876 | netif_device_attach(ndev); |
4877 | ||
4878 | return 0; | |
4879 | } | |
04da2cf9 | 4880 | #endif /* CONFIG_PM */ |
c4e84bde RM |
4881 | |
4882 | static void qlge_shutdown(struct pci_dev *pdev) | |
4883 | { | |
4884 | qlge_suspend(pdev, PMSG_SUSPEND); | |
4885 | } | |
4886 | ||
4887 | static struct pci_driver qlge_driver = { | |
4888 | .name = DRV_NAME, | |
4889 | .id_table = qlge_pci_tbl, | |
4890 | .probe = qlge_probe, | |
4891 | .remove = __devexit_p(qlge_remove), | |
4892 | #ifdef CONFIG_PM | |
4893 | .suspend = qlge_suspend, | |
4894 | .resume = qlge_resume, | |
4895 | #endif | |
4896 | .shutdown = qlge_shutdown, | |
4897 | .err_handler = &qlge_err_handler | |
4898 | }; | |
4899 | ||
4900 | static int __init qlge_init_module(void) | |
4901 | { | |
4902 | return pci_register_driver(&qlge_driver); | |
4903 | } | |
4904 | ||
4905 | static void __exit qlge_exit(void) | |
4906 | { | |
4907 | pci_unregister_driver(&qlge_driver); | |
4908 | } | |
4909 | ||
4910 | module_init(qlge_init_module); | |
4911 | module_exit(qlge_exit); |