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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 | |
72 | static int irq_type = MSIX_IRQ; | |
73 | module_param(irq_type, int, MSIX_IRQ); | |
74 | MODULE_PARM_DESC(irq_type, "0 = MSI-X, 1 = MSI, 2 = Legacy."); | |
75 | ||
76 | static struct pci_device_id qlge_pci_tbl[] __devinitdata = { | |
b0c2aadf | 77 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QLGE_DEVICE_ID_8012)}, |
cdca8d02 | 78 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QLGE_DEVICE_ID_8000)}, |
c4e84bde RM |
79 | /* required last entry */ |
80 | {0,} | |
81 | }; | |
82 | ||
83 | MODULE_DEVICE_TABLE(pci, qlge_pci_tbl); | |
84 | ||
85 | /* This hardware semaphore causes exclusive access to | |
86 | * resources shared between the NIC driver, MPI firmware, | |
87 | * FCOE firmware and the FC driver. | |
88 | */ | |
89 | static int ql_sem_trylock(struct ql_adapter *qdev, u32 sem_mask) | |
90 | { | |
91 | u32 sem_bits = 0; | |
92 | ||
93 | switch (sem_mask) { | |
94 | case SEM_XGMAC0_MASK: | |
95 | sem_bits = SEM_SET << SEM_XGMAC0_SHIFT; | |
96 | break; | |
97 | case SEM_XGMAC1_MASK: | |
98 | sem_bits = SEM_SET << SEM_XGMAC1_SHIFT; | |
99 | break; | |
100 | case SEM_ICB_MASK: | |
101 | sem_bits = SEM_SET << SEM_ICB_SHIFT; | |
102 | break; | |
103 | case SEM_MAC_ADDR_MASK: | |
104 | sem_bits = SEM_SET << SEM_MAC_ADDR_SHIFT; | |
105 | break; | |
106 | case SEM_FLASH_MASK: | |
107 | sem_bits = SEM_SET << SEM_FLASH_SHIFT; | |
108 | break; | |
109 | case SEM_PROBE_MASK: | |
110 | sem_bits = SEM_SET << SEM_PROBE_SHIFT; | |
111 | break; | |
112 | case SEM_RT_IDX_MASK: | |
113 | sem_bits = SEM_SET << SEM_RT_IDX_SHIFT; | |
114 | break; | |
115 | case SEM_PROC_REG_MASK: | |
116 | sem_bits = SEM_SET << SEM_PROC_REG_SHIFT; | |
117 | break; | |
118 | default: | |
119 | QPRINTK(qdev, PROBE, ALERT, "Bad Semaphore mask!.\n"); | |
120 | return -EINVAL; | |
121 | } | |
122 | ||
123 | ql_write32(qdev, SEM, sem_bits | sem_mask); | |
124 | return !(ql_read32(qdev, SEM) & sem_bits); | |
125 | } | |
126 | ||
127 | int ql_sem_spinlock(struct ql_adapter *qdev, u32 sem_mask) | |
128 | { | |
0857e9d7 | 129 | unsigned int wait_count = 30; |
c4e84bde RM |
130 | do { |
131 | if (!ql_sem_trylock(qdev, sem_mask)) | |
132 | return 0; | |
0857e9d7 RM |
133 | udelay(100); |
134 | } while (--wait_count); | |
c4e84bde RM |
135 | return -ETIMEDOUT; |
136 | } | |
137 | ||
138 | void ql_sem_unlock(struct ql_adapter *qdev, u32 sem_mask) | |
139 | { | |
140 | ql_write32(qdev, SEM, sem_mask); | |
141 | ql_read32(qdev, SEM); /* flush */ | |
142 | } | |
143 | ||
144 | /* This function waits for a specific bit to come ready | |
145 | * in a given register. It is used mostly by the initialize | |
146 | * process, but is also used in kernel thread API such as | |
147 | * netdev->set_multi, netdev->set_mac_address, netdev->vlan_rx_add_vid. | |
148 | */ | |
149 | int ql_wait_reg_rdy(struct ql_adapter *qdev, u32 reg, u32 bit, u32 err_bit) | |
150 | { | |
151 | u32 temp; | |
152 | int count = UDELAY_COUNT; | |
153 | ||
154 | while (count) { | |
155 | temp = ql_read32(qdev, reg); | |
156 | ||
157 | /* check for errors */ | |
158 | if (temp & err_bit) { | |
159 | QPRINTK(qdev, PROBE, ALERT, | |
160 | "register 0x%.08x access error, value = 0x%.08x!.\n", | |
161 | reg, temp); | |
162 | return -EIO; | |
163 | } else if (temp & bit) | |
164 | return 0; | |
165 | udelay(UDELAY_DELAY); | |
166 | count--; | |
167 | } | |
168 | QPRINTK(qdev, PROBE, ALERT, | |
169 | "Timed out waiting for reg %x to come ready.\n", reg); | |
170 | return -ETIMEDOUT; | |
171 | } | |
172 | ||
173 | /* The CFG register is used to download TX and RX control blocks | |
174 | * to the chip. This function waits for an operation to complete. | |
175 | */ | |
176 | static int ql_wait_cfg(struct ql_adapter *qdev, u32 bit) | |
177 | { | |
178 | int count = UDELAY_COUNT; | |
179 | u32 temp; | |
180 | ||
181 | while (count) { | |
182 | temp = ql_read32(qdev, CFG); | |
183 | if (temp & CFG_LE) | |
184 | return -EIO; | |
185 | if (!(temp & bit)) | |
186 | return 0; | |
187 | udelay(UDELAY_DELAY); | |
188 | count--; | |
189 | } | |
190 | return -ETIMEDOUT; | |
191 | } | |
192 | ||
193 | ||
194 | /* Used to issue init control blocks to hw. Maps control block, | |
195 | * sets address, triggers download, waits for completion. | |
196 | */ | |
197 | int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit, | |
198 | u16 q_id) | |
199 | { | |
200 | u64 map; | |
201 | int status = 0; | |
202 | int direction; | |
203 | u32 mask; | |
204 | u32 value; | |
205 | ||
206 | direction = | |
207 | (bit & (CFG_LRQ | CFG_LR | CFG_LCQ)) ? PCI_DMA_TODEVICE : | |
208 | PCI_DMA_FROMDEVICE; | |
209 | ||
210 | map = pci_map_single(qdev->pdev, ptr, size, direction); | |
211 | if (pci_dma_mapping_error(qdev->pdev, map)) { | |
212 | QPRINTK(qdev, IFUP, ERR, "Couldn't map DMA area.\n"); | |
213 | return -ENOMEM; | |
214 | } | |
215 | ||
4322c5be RM |
216 | status = ql_sem_spinlock(qdev, SEM_ICB_MASK); |
217 | if (status) | |
218 | return status; | |
219 | ||
c4e84bde RM |
220 | status = ql_wait_cfg(qdev, bit); |
221 | if (status) { | |
222 | QPRINTK(qdev, IFUP, ERR, | |
223 | "Timed out waiting for CFG to come ready.\n"); | |
224 | goto exit; | |
225 | } | |
226 | ||
c4e84bde RM |
227 | ql_write32(qdev, ICB_L, (u32) map); |
228 | ql_write32(qdev, ICB_H, (u32) (map >> 32)); | |
c4e84bde RM |
229 | |
230 | mask = CFG_Q_MASK | (bit << 16); | |
231 | value = bit | (q_id << CFG_Q_SHIFT); | |
232 | ql_write32(qdev, CFG, (mask | value)); | |
233 | ||
234 | /* | |
235 | * Wait for the bit to clear after signaling hw. | |
236 | */ | |
237 | status = ql_wait_cfg(qdev, bit); | |
238 | exit: | |
4322c5be | 239 | ql_sem_unlock(qdev, SEM_ICB_MASK); /* does flush too */ |
c4e84bde RM |
240 | pci_unmap_single(qdev->pdev, map, size, direction); |
241 | return status; | |
242 | } | |
243 | ||
244 | /* Get a specific MAC address from the CAM. Used for debug and reg dump. */ | |
245 | int ql_get_mac_addr_reg(struct ql_adapter *qdev, u32 type, u16 index, | |
246 | u32 *value) | |
247 | { | |
248 | u32 offset = 0; | |
249 | int status; | |
250 | ||
c4e84bde RM |
251 | switch (type) { |
252 | case MAC_ADDR_TYPE_MULTI_MAC: | |
253 | case MAC_ADDR_TYPE_CAM_MAC: | |
254 | { | |
255 | status = | |
256 | ql_wait_reg_rdy(qdev, | |
939678f8 | 257 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
258 | if (status) |
259 | goto exit; | |
260 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
261 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
262 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
263 | status = | |
264 | ql_wait_reg_rdy(qdev, | |
939678f8 | 265 | MAC_ADDR_IDX, MAC_ADDR_MR, 0); |
c4e84bde RM |
266 | if (status) |
267 | goto exit; | |
268 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
269 | status = | |
270 | ql_wait_reg_rdy(qdev, | |
939678f8 | 271 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
272 | if (status) |
273 | goto exit; | |
274 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
275 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
276 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
277 | status = | |
278 | ql_wait_reg_rdy(qdev, | |
939678f8 | 279 | MAC_ADDR_IDX, MAC_ADDR_MR, 0); |
c4e84bde RM |
280 | if (status) |
281 | goto exit; | |
282 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
283 | if (type == MAC_ADDR_TYPE_CAM_MAC) { | |
284 | status = | |
285 | ql_wait_reg_rdy(qdev, | |
939678f8 | 286 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
287 | if (status) |
288 | goto exit; | |
289 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
290 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
291 | MAC_ADDR_ADR | MAC_ADDR_RS | type); /* type */ | |
292 | status = | |
293 | ql_wait_reg_rdy(qdev, MAC_ADDR_IDX, | |
939678f8 | 294 | MAC_ADDR_MR, 0); |
c4e84bde RM |
295 | if (status) |
296 | goto exit; | |
297 | *value++ = ql_read32(qdev, MAC_ADDR_DATA); | |
298 | } | |
299 | break; | |
300 | } | |
301 | case MAC_ADDR_TYPE_VLAN: | |
302 | case MAC_ADDR_TYPE_MULTI_FLTR: | |
303 | default: | |
304 | QPRINTK(qdev, IFUP, CRIT, | |
305 | "Address type %d not yet supported.\n", type); | |
306 | status = -EPERM; | |
307 | } | |
308 | exit: | |
c4e84bde RM |
309 | return status; |
310 | } | |
311 | ||
312 | /* Set up a MAC, multicast or VLAN address for the | |
313 | * inbound frame matching. | |
314 | */ | |
315 | static int ql_set_mac_addr_reg(struct ql_adapter *qdev, u8 *addr, u32 type, | |
316 | u16 index) | |
317 | { | |
318 | u32 offset = 0; | |
319 | int status = 0; | |
320 | ||
c4e84bde RM |
321 | switch (type) { |
322 | case MAC_ADDR_TYPE_MULTI_MAC: | |
323 | case MAC_ADDR_TYPE_CAM_MAC: | |
324 | { | |
325 | u32 cam_output; | |
326 | u32 upper = (addr[0] << 8) | addr[1]; | |
327 | u32 lower = | |
328 | (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | | |
329 | (addr[5]); | |
330 | ||
4974097a | 331 | QPRINTK(qdev, IFUP, DEBUG, |
7c510e4b | 332 | "Adding %s address %pM" |
c4e84bde RM |
333 | " at index %d in the CAM.\n", |
334 | ((type == | |
335 | MAC_ADDR_TYPE_MULTI_MAC) ? "MULTICAST" : | |
7c510e4b | 336 | "UNICAST"), addr, index); |
c4e84bde RM |
337 | |
338 | status = | |
339 | ql_wait_reg_rdy(qdev, | |
939678f8 | 340 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
341 | if (status) |
342 | goto exit; | |
343 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
344 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
345 | type); /* type */ | |
346 | ql_write32(qdev, MAC_ADDR_DATA, lower); | |
347 | status = | |
348 | ql_wait_reg_rdy(qdev, | |
939678f8 | 349 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
350 | if (status) |
351 | goto exit; | |
352 | ql_write32(qdev, MAC_ADDR_IDX, (offset++) | /* offset */ | |
353 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
354 | type); /* type */ | |
355 | ql_write32(qdev, MAC_ADDR_DATA, upper); | |
356 | status = | |
357 | ql_wait_reg_rdy(qdev, | |
939678f8 | 358 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
359 | if (status) |
360 | goto exit; | |
361 | ql_write32(qdev, MAC_ADDR_IDX, (offset) | /* offset */ | |
362 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
363 | type); /* type */ | |
364 | /* This field should also include the queue id | |
365 | and possibly the function id. Right now we hardcode | |
366 | the route field to NIC core. | |
367 | */ | |
368 | if (type == MAC_ADDR_TYPE_CAM_MAC) { | |
369 | cam_output = (CAM_OUT_ROUTE_NIC | | |
370 | (qdev-> | |
371 | func << CAM_OUT_FUNC_SHIFT) | | |
b2014ff8 | 372 | (0 << CAM_OUT_CQ_ID_SHIFT)); |
c4e84bde RM |
373 | if (qdev->vlgrp) |
374 | cam_output |= CAM_OUT_RV; | |
375 | /* route to NIC core */ | |
376 | ql_write32(qdev, MAC_ADDR_DATA, cam_output); | |
377 | } | |
378 | break; | |
379 | } | |
380 | case MAC_ADDR_TYPE_VLAN: | |
381 | { | |
382 | u32 enable_bit = *((u32 *) &addr[0]); | |
383 | /* For VLAN, the addr actually holds a bit that | |
384 | * either enables or disables the vlan id we are | |
385 | * addressing. It's either MAC_ADDR_E on or off. | |
386 | * That's bit-27 we're talking about. | |
387 | */ | |
388 | QPRINTK(qdev, IFUP, INFO, "%s VLAN ID %d %s the CAM.\n", | |
389 | (enable_bit ? "Adding" : "Removing"), | |
390 | index, (enable_bit ? "to" : "from")); | |
391 | ||
392 | status = | |
393 | ql_wait_reg_rdy(qdev, | |
939678f8 | 394 | MAC_ADDR_IDX, MAC_ADDR_MW, 0); |
c4e84bde RM |
395 | if (status) |
396 | goto exit; | |
397 | ql_write32(qdev, MAC_ADDR_IDX, offset | /* offset */ | |
398 | (index << MAC_ADDR_IDX_SHIFT) | /* index */ | |
399 | type | /* type */ | |
400 | enable_bit); /* enable/disable */ | |
401 | break; | |
402 | } | |
403 | case MAC_ADDR_TYPE_MULTI_FLTR: | |
404 | default: | |
405 | QPRINTK(qdev, IFUP, CRIT, | |
406 | "Address type %d not yet supported.\n", type); | |
407 | status = -EPERM; | |
408 | } | |
409 | exit: | |
c4e84bde RM |
410 | return status; |
411 | } | |
412 | ||
7fab3bfe RM |
413 | /* Set or clear MAC address in hardware. We sometimes |
414 | * have to clear it to prevent wrong frame routing | |
415 | * especially in a bonding environment. | |
416 | */ | |
417 | static int ql_set_mac_addr(struct ql_adapter *qdev, int set) | |
418 | { | |
419 | int status; | |
420 | char zero_mac_addr[ETH_ALEN]; | |
421 | char *addr; | |
422 | ||
423 | if (set) { | |
424 | addr = &qdev->ndev->dev_addr[0]; | |
425 | QPRINTK(qdev, IFUP, DEBUG, | |
426 | "Set Mac addr %02x:%02x:%02x:%02x:%02x:%02x\n", | |
427 | addr[0], addr[1], addr[2], addr[3], | |
428 | addr[4], addr[5]); | |
429 | } else { | |
430 | memset(zero_mac_addr, 0, ETH_ALEN); | |
431 | addr = &zero_mac_addr[0]; | |
432 | QPRINTK(qdev, IFUP, DEBUG, | |
433 | "Clearing MAC address on %s\n", | |
434 | qdev->ndev->name); | |
435 | } | |
436 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); | |
437 | if (status) | |
438 | return status; | |
439 | status = ql_set_mac_addr_reg(qdev, (u8 *) addr, | |
440 | MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ); | |
441 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); | |
442 | if (status) | |
443 | QPRINTK(qdev, IFUP, ERR, "Failed to init mac " | |
444 | "address.\n"); | |
445 | return status; | |
446 | } | |
447 | ||
6a473308 RM |
448 | void ql_link_on(struct ql_adapter *qdev) |
449 | { | |
450 | QPRINTK(qdev, LINK, ERR, "%s: Link is up.\n", | |
451 | qdev->ndev->name); | |
452 | netif_carrier_on(qdev->ndev); | |
453 | ql_set_mac_addr(qdev, 1); | |
454 | } | |
455 | ||
456 | void ql_link_off(struct ql_adapter *qdev) | |
457 | { | |
458 | QPRINTK(qdev, LINK, ERR, "%s: Link is down.\n", | |
459 | qdev->ndev->name); | |
460 | netif_carrier_off(qdev->ndev); | |
461 | ql_set_mac_addr(qdev, 0); | |
462 | } | |
463 | ||
c4e84bde RM |
464 | /* Get a specific frame routing value from the CAM. |
465 | * Used for debug and reg dump. | |
466 | */ | |
467 | int ql_get_routing_reg(struct ql_adapter *qdev, u32 index, u32 *value) | |
468 | { | |
469 | int status = 0; | |
470 | ||
939678f8 | 471 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MW, 0); |
c4e84bde RM |
472 | if (status) |
473 | goto exit; | |
474 | ||
475 | ql_write32(qdev, RT_IDX, | |
476 | RT_IDX_TYPE_NICQ | RT_IDX_RS | (index << RT_IDX_IDX_SHIFT)); | |
939678f8 | 477 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MR, 0); |
c4e84bde RM |
478 | if (status) |
479 | goto exit; | |
480 | *value = ql_read32(qdev, RT_DATA); | |
481 | exit: | |
c4e84bde RM |
482 | return status; |
483 | } | |
484 | ||
485 | /* The NIC function for this chip has 16 routing indexes. Each one can be used | |
486 | * to route different frame types to various inbound queues. We send broadcast/ | |
487 | * multicast/error frames to the default queue for slow handling, | |
488 | * and CAM hit/RSS frames to the fast handling queues. | |
489 | */ | |
490 | static int ql_set_routing_reg(struct ql_adapter *qdev, u32 index, u32 mask, | |
491 | int enable) | |
492 | { | |
8587ea35 | 493 | int status = -EINVAL; /* Return error if no mask match. */ |
c4e84bde RM |
494 | u32 value = 0; |
495 | ||
c4e84bde RM |
496 | QPRINTK(qdev, IFUP, DEBUG, |
497 | "%s %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s mask %s the routing reg.\n", | |
498 | (enable ? "Adding" : "Removing"), | |
499 | ((index == RT_IDX_ALL_ERR_SLOT) ? "MAC ERROR/ALL ERROR" : ""), | |
500 | ((index == RT_IDX_IP_CSUM_ERR_SLOT) ? "IP CSUM ERROR" : ""), | |
501 | ((index == | |
502 | RT_IDX_TCP_UDP_CSUM_ERR_SLOT) ? "TCP/UDP CSUM ERROR" : ""), | |
503 | ((index == RT_IDX_BCAST_SLOT) ? "BROADCAST" : ""), | |
504 | ((index == RT_IDX_MCAST_MATCH_SLOT) ? "MULTICAST MATCH" : ""), | |
505 | ((index == RT_IDX_ALLMULTI_SLOT) ? "ALL MULTICAST MATCH" : ""), | |
506 | ((index == RT_IDX_UNUSED6_SLOT) ? "UNUSED6" : ""), | |
507 | ((index == RT_IDX_UNUSED7_SLOT) ? "UNUSED7" : ""), | |
508 | ((index == RT_IDX_RSS_MATCH_SLOT) ? "RSS ALL/IPV4 MATCH" : ""), | |
509 | ((index == RT_IDX_RSS_IPV6_SLOT) ? "RSS IPV6" : ""), | |
510 | ((index == RT_IDX_RSS_TCP4_SLOT) ? "RSS TCP4" : ""), | |
511 | ((index == RT_IDX_RSS_TCP6_SLOT) ? "RSS TCP6" : ""), | |
512 | ((index == RT_IDX_CAM_HIT_SLOT) ? "CAM HIT" : ""), | |
513 | ((index == RT_IDX_UNUSED013) ? "UNUSED13" : ""), | |
514 | ((index == RT_IDX_UNUSED014) ? "UNUSED14" : ""), | |
515 | ((index == RT_IDX_PROMISCUOUS_SLOT) ? "PROMISCUOUS" : ""), | |
516 | (enable ? "to" : "from")); | |
517 | ||
518 | switch (mask) { | |
519 | case RT_IDX_CAM_HIT: | |
520 | { | |
521 | value = RT_IDX_DST_CAM_Q | /* dest */ | |
522 | RT_IDX_TYPE_NICQ | /* type */ | |
523 | (RT_IDX_CAM_HIT_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
524 | break; | |
525 | } | |
526 | case RT_IDX_VALID: /* Promiscuous Mode frames. */ | |
527 | { | |
528 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
529 | RT_IDX_TYPE_NICQ | /* type */ | |
530 | (RT_IDX_PROMISCUOUS_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
531 | break; | |
532 | } | |
533 | case RT_IDX_ERR: /* Pass up MAC,IP,TCP/UDP error frames. */ | |
534 | { | |
535 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
536 | RT_IDX_TYPE_NICQ | /* type */ | |
537 | (RT_IDX_ALL_ERR_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
538 | break; | |
539 | } | |
540 | case RT_IDX_BCAST: /* Pass up Broadcast frames to default Q. */ | |
541 | { | |
542 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
543 | RT_IDX_TYPE_NICQ | /* type */ | |
544 | (RT_IDX_BCAST_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
545 | break; | |
546 | } | |
547 | case RT_IDX_MCAST: /* Pass up All Multicast frames. */ | |
548 | { | |
549 | value = RT_IDX_DST_CAM_Q | /* dest */ | |
550 | RT_IDX_TYPE_NICQ | /* type */ | |
551 | (RT_IDX_ALLMULTI_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
552 | break; | |
553 | } | |
554 | case RT_IDX_MCAST_MATCH: /* Pass up matched Multicast frames. */ | |
555 | { | |
556 | value = RT_IDX_DST_CAM_Q | /* dest */ | |
557 | RT_IDX_TYPE_NICQ | /* type */ | |
558 | (RT_IDX_MCAST_MATCH_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
559 | break; | |
560 | } | |
561 | case RT_IDX_RSS_MATCH: /* Pass up matched RSS frames. */ | |
562 | { | |
563 | value = RT_IDX_DST_RSS | /* dest */ | |
564 | RT_IDX_TYPE_NICQ | /* type */ | |
565 | (RT_IDX_RSS_MATCH_SLOT << RT_IDX_IDX_SHIFT);/* index */ | |
566 | break; | |
567 | } | |
568 | case 0: /* Clear the E-bit on an entry. */ | |
569 | { | |
570 | value = RT_IDX_DST_DFLT_Q | /* dest */ | |
571 | RT_IDX_TYPE_NICQ | /* type */ | |
572 | (index << RT_IDX_IDX_SHIFT);/* index */ | |
573 | break; | |
574 | } | |
575 | default: | |
576 | QPRINTK(qdev, IFUP, ERR, "Mask type %d not yet supported.\n", | |
577 | mask); | |
578 | status = -EPERM; | |
579 | goto exit; | |
580 | } | |
581 | ||
582 | if (value) { | |
583 | status = ql_wait_reg_rdy(qdev, RT_IDX, RT_IDX_MW, 0); | |
584 | if (status) | |
585 | goto exit; | |
586 | value |= (enable ? RT_IDX_E : 0); | |
587 | ql_write32(qdev, RT_IDX, value); | |
588 | ql_write32(qdev, RT_DATA, enable ? mask : 0); | |
589 | } | |
590 | exit: | |
c4e84bde RM |
591 | return status; |
592 | } | |
593 | ||
594 | static void ql_enable_interrupts(struct ql_adapter *qdev) | |
595 | { | |
596 | ql_write32(qdev, INTR_EN, (INTR_EN_EI << 16) | INTR_EN_EI); | |
597 | } | |
598 | ||
599 | static void ql_disable_interrupts(struct ql_adapter *qdev) | |
600 | { | |
601 | ql_write32(qdev, INTR_EN, (INTR_EN_EI << 16)); | |
602 | } | |
603 | ||
604 | /* If we're running with multiple MSI-X vectors then we enable on the fly. | |
605 | * Otherwise, we may have multiple outstanding workers and don't want to | |
606 | * enable until the last one finishes. In this case, the irq_cnt gets | |
607 | * incremented everytime we queue a worker and decremented everytime | |
608 | * a worker finishes. Once it hits zero we enable the interrupt. | |
609 | */ | |
bb0d215c | 610 | u32 ql_enable_completion_interrupt(struct ql_adapter *qdev, u32 intr) |
c4e84bde | 611 | { |
bb0d215c RM |
612 | u32 var = 0; |
613 | unsigned long hw_flags = 0; | |
614 | struct intr_context *ctx = qdev->intr_context + intr; | |
615 | ||
616 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags) && intr)) { | |
617 | /* Always enable if we're MSIX multi interrupts and | |
618 | * it's not the default (zeroeth) interrupt. | |
619 | */ | |
c4e84bde | 620 | ql_write32(qdev, INTR_EN, |
bb0d215c RM |
621 | ctx->intr_en_mask); |
622 | var = ql_read32(qdev, STS); | |
623 | return var; | |
c4e84bde | 624 | } |
bb0d215c RM |
625 | |
626 | spin_lock_irqsave(&qdev->hw_lock, hw_flags); | |
627 | if (atomic_dec_and_test(&ctx->irq_cnt)) { | |
628 | ql_write32(qdev, INTR_EN, | |
629 | ctx->intr_en_mask); | |
630 | var = ql_read32(qdev, STS); | |
631 | } | |
632 | spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); | |
633 | return var; | |
c4e84bde RM |
634 | } |
635 | ||
636 | static u32 ql_disable_completion_interrupt(struct ql_adapter *qdev, u32 intr) | |
637 | { | |
638 | u32 var = 0; | |
bb0d215c | 639 | struct intr_context *ctx; |
c4e84bde | 640 | |
bb0d215c RM |
641 | /* HW disables for us if we're MSIX multi interrupts and |
642 | * it's not the default (zeroeth) interrupt. | |
643 | */ | |
644 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags) && intr)) | |
645 | return 0; | |
646 | ||
647 | ctx = qdev->intr_context + intr; | |
08b1bc8f | 648 | spin_lock(&qdev->hw_lock); |
bb0d215c | 649 | if (!atomic_read(&ctx->irq_cnt)) { |
c4e84bde | 650 | ql_write32(qdev, INTR_EN, |
bb0d215c | 651 | ctx->intr_dis_mask); |
c4e84bde RM |
652 | var = ql_read32(qdev, STS); |
653 | } | |
bb0d215c | 654 | atomic_inc(&ctx->irq_cnt); |
08b1bc8f | 655 | spin_unlock(&qdev->hw_lock); |
c4e84bde RM |
656 | return var; |
657 | } | |
658 | ||
659 | static void ql_enable_all_completion_interrupts(struct ql_adapter *qdev) | |
660 | { | |
661 | int i; | |
662 | for (i = 0; i < qdev->intr_count; i++) { | |
663 | /* The enable call does a atomic_dec_and_test | |
664 | * and enables only if the result is zero. | |
665 | * So we precharge it here. | |
666 | */ | |
bb0d215c RM |
667 | if (unlikely(!test_bit(QL_MSIX_ENABLED, &qdev->flags) || |
668 | i == 0)) | |
669 | atomic_set(&qdev->intr_context[i].irq_cnt, 1); | |
c4e84bde RM |
670 | ql_enable_completion_interrupt(qdev, i); |
671 | } | |
672 | ||
673 | } | |
674 | ||
b0c2aadf RM |
675 | static int ql_validate_flash(struct ql_adapter *qdev, u32 size, const char *str) |
676 | { | |
677 | int status, i; | |
678 | u16 csum = 0; | |
679 | __le16 *flash = (__le16 *)&qdev->flash; | |
680 | ||
681 | status = strncmp((char *)&qdev->flash, str, 4); | |
682 | if (status) { | |
683 | QPRINTK(qdev, IFUP, ERR, "Invalid flash signature.\n"); | |
684 | return status; | |
685 | } | |
686 | ||
687 | for (i = 0; i < size; i++) | |
688 | csum += le16_to_cpu(*flash++); | |
689 | ||
690 | if (csum) | |
691 | QPRINTK(qdev, IFUP, ERR, | |
692 | "Invalid flash checksum, csum = 0x%.04x.\n", csum); | |
693 | ||
694 | return csum; | |
695 | } | |
696 | ||
26351479 | 697 | static int ql_read_flash_word(struct ql_adapter *qdev, int offset, __le32 *data) |
c4e84bde RM |
698 | { |
699 | int status = 0; | |
700 | /* wait for reg to come ready */ | |
701 | status = ql_wait_reg_rdy(qdev, | |
702 | FLASH_ADDR, FLASH_ADDR_RDY, FLASH_ADDR_ERR); | |
703 | if (status) | |
704 | goto exit; | |
705 | /* set up for reg read */ | |
706 | ql_write32(qdev, FLASH_ADDR, FLASH_ADDR_R | offset); | |
707 | /* wait for reg to come ready */ | |
708 | status = ql_wait_reg_rdy(qdev, | |
709 | FLASH_ADDR, FLASH_ADDR_RDY, FLASH_ADDR_ERR); | |
710 | if (status) | |
711 | goto exit; | |
26351479 RM |
712 | /* This data is stored on flash as an array of |
713 | * __le32. Since ql_read32() returns cpu endian | |
714 | * we need to swap it back. | |
715 | */ | |
716 | *data = cpu_to_le32(ql_read32(qdev, FLASH_DATA)); | |
c4e84bde RM |
717 | exit: |
718 | return status; | |
719 | } | |
720 | ||
cdca8d02 RM |
721 | static int ql_get_8000_flash_params(struct ql_adapter *qdev) |
722 | { | |
723 | u32 i, size; | |
724 | int status; | |
725 | __le32 *p = (__le32 *)&qdev->flash; | |
726 | u32 offset; | |
542512e4 | 727 | u8 mac_addr[6]; |
cdca8d02 RM |
728 | |
729 | /* Get flash offset for function and adjust | |
730 | * for dword access. | |
731 | */ | |
e4552f51 | 732 | if (!qdev->port) |
cdca8d02 RM |
733 | offset = FUNC0_FLASH_OFFSET / sizeof(u32); |
734 | else | |
735 | offset = FUNC1_FLASH_OFFSET / sizeof(u32); | |
736 | ||
737 | if (ql_sem_spinlock(qdev, SEM_FLASH_MASK)) | |
738 | return -ETIMEDOUT; | |
739 | ||
740 | size = sizeof(struct flash_params_8000) / sizeof(u32); | |
741 | for (i = 0; i < size; i++, p++) { | |
742 | status = ql_read_flash_word(qdev, i+offset, p); | |
743 | if (status) { | |
744 | QPRINTK(qdev, IFUP, ERR, "Error reading flash.\n"); | |
745 | goto exit; | |
746 | } | |
747 | } | |
748 | ||
749 | status = ql_validate_flash(qdev, | |
750 | sizeof(struct flash_params_8000) / sizeof(u16), | |
751 | "8000"); | |
752 | if (status) { | |
753 | QPRINTK(qdev, IFUP, ERR, "Invalid flash.\n"); | |
754 | status = -EINVAL; | |
755 | goto exit; | |
756 | } | |
757 | ||
542512e4 RM |
758 | /* Extract either manufacturer or BOFM modified |
759 | * MAC address. | |
760 | */ | |
761 | if (qdev->flash.flash_params_8000.data_type1 == 2) | |
762 | memcpy(mac_addr, | |
763 | qdev->flash.flash_params_8000.mac_addr1, | |
764 | qdev->ndev->addr_len); | |
765 | else | |
766 | memcpy(mac_addr, | |
767 | qdev->flash.flash_params_8000.mac_addr, | |
768 | qdev->ndev->addr_len); | |
769 | ||
770 | if (!is_valid_ether_addr(mac_addr)) { | |
cdca8d02 RM |
771 | QPRINTK(qdev, IFUP, ERR, "Invalid MAC address.\n"); |
772 | status = -EINVAL; | |
773 | goto exit; | |
774 | } | |
775 | ||
776 | memcpy(qdev->ndev->dev_addr, | |
542512e4 | 777 | mac_addr, |
cdca8d02 RM |
778 | qdev->ndev->addr_len); |
779 | ||
780 | exit: | |
781 | ql_sem_unlock(qdev, SEM_FLASH_MASK); | |
782 | return status; | |
783 | } | |
784 | ||
b0c2aadf | 785 | static int ql_get_8012_flash_params(struct ql_adapter *qdev) |
c4e84bde RM |
786 | { |
787 | int i; | |
788 | int status; | |
26351479 | 789 | __le32 *p = (__le32 *)&qdev->flash; |
e78f5fa7 | 790 | u32 offset = 0; |
b0c2aadf | 791 | u32 size = sizeof(struct flash_params_8012) / sizeof(u32); |
e78f5fa7 RM |
792 | |
793 | /* Second function's parameters follow the first | |
794 | * function's. | |
795 | */ | |
e4552f51 | 796 | if (qdev->port) |
b0c2aadf | 797 | offset = size; |
c4e84bde RM |
798 | |
799 | if (ql_sem_spinlock(qdev, SEM_FLASH_MASK)) | |
800 | return -ETIMEDOUT; | |
801 | ||
b0c2aadf | 802 | for (i = 0; i < size; i++, p++) { |
e78f5fa7 | 803 | status = ql_read_flash_word(qdev, i+offset, p); |
c4e84bde RM |
804 | if (status) { |
805 | QPRINTK(qdev, IFUP, ERR, "Error reading flash.\n"); | |
806 | goto exit; | |
807 | } | |
808 | ||
809 | } | |
b0c2aadf RM |
810 | |
811 | status = ql_validate_flash(qdev, | |
812 | sizeof(struct flash_params_8012) / sizeof(u16), | |
813 | "8012"); | |
814 | if (status) { | |
815 | QPRINTK(qdev, IFUP, ERR, "Invalid flash.\n"); | |
816 | status = -EINVAL; | |
817 | goto exit; | |
818 | } | |
819 | ||
820 | if (!is_valid_ether_addr(qdev->flash.flash_params_8012.mac_addr)) { | |
821 | status = -EINVAL; | |
822 | goto exit; | |
823 | } | |
824 | ||
825 | memcpy(qdev->ndev->dev_addr, | |
826 | qdev->flash.flash_params_8012.mac_addr, | |
827 | qdev->ndev->addr_len); | |
828 | ||
c4e84bde RM |
829 | exit: |
830 | ql_sem_unlock(qdev, SEM_FLASH_MASK); | |
831 | return status; | |
832 | } | |
833 | ||
834 | /* xgmac register are located behind the xgmac_addr and xgmac_data | |
835 | * register pair. Each read/write requires us to wait for the ready | |
836 | * bit before reading/writing the data. | |
837 | */ | |
838 | static int ql_write_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 data) | |
839 | { | |
840 | int status; | |
841 | /* wait for reg to come ready */ | |
842 | status = ql_wait_reg_rdy(qdev, | |
843 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
844 | if (status) | |
845 | return status; | |
846 | /* write the data to the data reg */ | |
847 | ql_write32(qdev, XGMAC_DATA, data); | |
848 | /* trigger the write */ | |
849 | ql_write32(qdev, XGMAC_ADDR, reg); | |
850 | return status; | |
851 | } | |
852 | ||
853 | /* xgmac register are located behind the xgmac_addr and xgmac_data | |
854 | * register pair. Each read/write requires us to wait for the ready | |
855 | * bit before reading/writing the data. | |
856 | */ | |
857 | int ql_read_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 *data) | |
858 | { | |
859 | int status = 0; | |
860 | /* wait for reg to come ready */ | |
861 | status = ql_wait_reg_rdy(qdev, | |
862 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
863 | if (status) | |
864 | goto exit; | |
865 | /* set up for reg read */ | |
866 | ql_write32(qdev, XGMAC_ADDR, reg | XGMAC_ADDR_R); | |
867 | /* wait for reg to come ready */ | |
868 | status = ql_wait_reg_rdy(qdev, | |
869 | XGMAC_ADDR, XGMAC_ADDR_RDY, XGMAC_ADDR_XME); | |
870 | if (status) | |
871 | goto exit; | |
872 | /* get the data */ | |
873 | *data = ql_read32(qdev, XGMAC_DATA); | |
874 | exit: | |
875 | return status; | |
876 | } | |
877 | ||
878 | /* This is used for reading the 64-bit statistics regs. */ | |
879 | int ql_read_xgmac_reg64(struct ql_adapter *qdev, u32 reg, u64 *data) | |
880 | { | |
881 | int status = 0; | |
882 | u32 hi = 0; | |
883 | u32 lo = 0; | |
884 | ||
885 | status = ql_read_xgmac_reg(qdev, reg, &lo); | |
886 | if (status) | |
887 | goto exit; | |
888 | ||
889 | status = ql_read_xgmac_reg(qdev, reg + 4, &hi); | |
890 | if (status) | |
891 | goto exit; | |
892 | ||
893 | *data = (u64) lo | ((u64) hi << 32); | |
894 | ||
895 | exit: | |
896 | return status; | |
897 | } | |
898 | ||
cdca8d02 RM |
899 | static int ql_8000_port_initialize(struct ql_adapter *qdev) |
900 | { | |
bcc2cb3b | 901 | int status; |
cfec0cbc RM |
902 | /* |
903 | * Get MPI firmware version for driver banner | |
904 | * and ethool info. | |
905 | */ | |
906 | status = ql_mb_about_fw(qdev); | |
907 | if (status) | |
908 | goto exit; | |
bcc2cb3b RM |
909 | status = ql_mb_get_fw_state(qdev); |
910 | if (status) | |
911 | goto exit; | |
912 | /* Wake up a worker to get/set the TX/RX frame sizes. */ | |
913 | queue_delayed_work(qdev->workqueue, &qdev->mpi_port_cfg_work, 0); | |
914 | exit: | |
915 | return status; | |
cdca8d02 RM |
916 | } |
917 | ||
c4e84bde RM |
918 | /* Take the MAC Core out of reset. |
919 | * Enable statistics counting. | |
920 | * Take the transmitter/receiver out of reset. | |
921 | * This functionality may be done in the MPI firmware at a | |
922 | * later date. | |
923 | */ | |
b0c2aadf | 924 | static int ql_8012_port_initialize(struct ql_adapter *qdev) |
c4e84bde RM |
925 | { |
926 | int status = 0; | |
927 | u32 data; | |
928 | ||
929 | if (ql_sem_trylock(qdev, qdev->xg_sem_mask)) { | |
930 | /* Another function has the semaphore, so | |
931 | * wait for the port init bit to come ready. | |
932 | */ | |
933 | QPRINTK(qdev, LINK, INFO, | |
934 | "Another function has the semaphore, so wait for the port init bit to come ready.\n"); | |
935 | status = ql_wait_reg_rdy(qdev, STS, qdev->port_init, 0); | |
936 | if (status) { | |
937 | QPRINTK(qdev, LINK, CRIT, | |
938 | "Port initialize timed out.\n"); | |
939 | } | |
940 | return status; | |
941 | } | |
942 | ||
943 | QPRINTK(qdev, LINK, INFO, "Got xgmac semaphore!.\n"); | |
944 | /* Set the core reset. */ | |
945 | status = ql_read_xgmac_reg(qdev, GLOBAL_CFG, &data); | |
946 | if (status) | |
947 | goto end; | |
948 | data |= GLOBAL_CFG_RESET; | |
949 | status = ql_write_xgmac_reg(qdev, GLOBAL_CFG, data); | |
950 | if (status) | |
951 | goto end; | |
952 | ||
953 | /* Clear the core reset and turn on jumbo for receiver. */ | |
954 | data &= ~GLOBAL_CFG_RESET; /* Clear core reset. */ | |
955 | data |= GLOBAL_CFG_JUMBO; /* Turn on jumbo. */ | |
956 | data |= GLOBAL_CFG_TX_STAT_EN; | |
957 | data |= GLOBAL_CFG_RX_STAT_EN; | |
958 | status = ql_write_xgmac_reg(qdev, GLOBAL_CFG, data); | |
959 | if (status) | |
960 | goto end; | |
961 | ||
962 | /* Enable transmitter, and clear it's reset. */ | |
963 | status = ql_read_xgmac_reg(qdev, TX_CFG, &data); | |
964 | if (status) | |
965 | goto end; | |
966 | data &= ~TX_CFG_RESET; /* Clear the TX MAC reset. */ | |
967 | data |= TX_CFG_EN; /* Enable the transmitter. */ | |
968 | status = ql_write_xgmac_reg(qdev, TX_CFG, data); | |
969 | if (status) | |
970 | goto end; | |
971 | ||
972 | /* Enable receiver and clear it's reset. */ | |
973 | status = ql_read_xgmac_reg(qdev, RX_CFG, &data); | |
974 | if (status) | |
975 | goto end; | |
976 | data &= ~RX_CFG_RESET; /* Clear the RX MAC reset. */ | |
977 | data |= RX_CFG_EN; /* Enable the receiver. */ | |
978 | status = ql_write_xgmac_reg(qdev, RX_CFG, data); | |
979 | if (status) | |
980 | goto end; | |
981 | ||
982 | /* Turn on jumbo. */ | |
983 | status = | |
984 | ql_write_xgmac_reg(qdev, MAC_TX_PARAMS, MAC_TX_PARAMS_JUMBO | (0x2580 << 16)); | |
985 | if (status) | |
986 | goto end; | |
987 | status = | |
988 | ql_write_xgmac_reg(qdev, MAC_RX_PARAMS, 0x2580); | |
989 | if (status) | |
990 | goto end; | |
991 | ||
992 | /* Signal to the world that the port is enabled. */ | |
993 | ql_write32(qdev, STS, ((qdev->port_init << 16) | qdev->port_init)); | |
994 | end: | |
995 | ql_sem_unlock(qdev, qdev->xg_sem_mask); | |
996 | return status; | |
997 | } | |
998 | ||
999 | /* Get the next large buffer. */ | |
8668ae92 | 1000 | static struct bq_desc *ql_get_curr_lbuf(struct rx_ring *rx_ring) |
c4e84bde RM |
1001 | { |
1002 | struct bq_desc *lbq_desc = &rx_ring->lbq[rx_ring->lbq_curr_idx]; | |
1003 | rx_ring->lbq_curr_idx++; | |
1004 | if (rx_ring->lbq_curr_idx == rx_ring->lbq_len) | |
1005 | rx_ring->lbq_curr_idx = 0; | |
1006 | rx_ring->lbq_free_cnt++; | |
1007 | return lbq_desc; | |
1008 | } | |
1009 | ||
1010 | /* Get the next small buffer. */ | |
8668ae92 | 1011 | static struct bq_desc *ql_get_curr_sbuf(struct rx_ring *rx_ring) |
c4e84bde RM |
1012 | { |
1013 | struct bq_desc *sbq_desc = &rx_ring->sbq[rx_ring->sbq_curr_idx]; | |
1014 | rx_ring->sbq_curr_idx++; | |
1015 | if (rx_ring->sbq_curr_idx == rx_ring->sbq_len) | |
1016 | rx_ring->sbq_curr_idx = 0; | |
1017 | rx_ring->sbq_free_cnt++; | |
1018 | return sbq_desc; | |
1019 | } | |
1020 | ||
1021 | /* Update an rx ring index. */ | |
1022 | static void ql_update_cq(struct rx_ring *rx_ring) | |
1023 | { | |
1024 | rx_ring->cnsmr_idx++; | |
1025 | rx_ring->curr_entry++; | |
1026 | if (unlikely(rx_ring->cnsmr_idx == rx_ring->cq_len)) { | |
1027 | rx_ring->cnsmr_idx = 0; | |
1028 | rx_ring->curr_entry = rx_ring->cq_base; | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | static void ql_write_cq_idx(struct rx_ring *rx_ring) | |
1033 | { | |
1034 | ql_write_db_reg(rx_ring->cnsmr_idx, rx_ring->cnsmr_idx_db_reg); | |
1035 | } | |
1036 | ||
1037 | /* Process (refill) a large buffer queue. */ | |
1038 | static void ql_update_lbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
1039 | { | |
49f2186d RM |
1040 | u32 clean_idx = rx_ring->lbq_clean_idx; |
1041 | u32 start_idx = clean_idx; | |
c4e84bde | 1042 | struct bq_desc *lbq_desc; |
c4e84bde RM |
1043 | u64 map; |
1044 | int i; | |
1045 | ||
1046 | while (rx_ring->lbq_free_cnt > 16) { | |
1047 | for (i = 0; i < 16; i++) { | |
1048 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1049 | "lbq: try cleaning clean_idx = %d.\n", | |
1050 | clean_idx); | |
1051 | lbq_desc = &rx_ring->lbq[clean_idx]; | |
c4e84bde RM |
1052 | if (lbq_desc->p.lbq_page == NULL) { |
1053 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1054 | "lbq: getting new page for index %d.\n", | |
1055 | lbq_desc->index); | |
1056 | lbq_desc->p.lbq_page = alloc_page(GFP_ATOMIC); | |
1057 | if (lbq_desc->p.lbq_page == NULL) { | |
79d2b29e | 1058 | rx_ring->lbq_clean_idx = clean_idx; |
c4e84bde RM |
1059 | QPRINTK(qdev, RX_STATUS, ERR, |
1060 | "Couldn't get a page.\n"); | |
1061 | return; | |
1062 | } | |
1063 | map = pci_map_page(qdev->pdev, | |
1064 | lbq_desc->p.lbq_page, | |
1065 | 0, PAGE_SIZE, | |
1066 | PCI_DMA_FROMDEVICE); | |
1067 | if (pci_dma_mapping_error(qdev->pdev, map)) { | |
79d2b29e | 1068 | rx_ring->lbq_clean_idx = clean_idx; |
f2603c2c RM |
1069 | put_page(lbq_desc->p.lbq_page); |
1070 | lbq_desc->p.lbq_page = NULL; | |
c4e84bde RM |
1071 | QPRINTK(qdev, RX_STATUS, ERR, |
1072 | "PCI mapping failed.\n"); | |
1073 | return; | |
1074 | } | |
1075 | pci_unmap_addr_set(lbq_desc, mapaddr, map); | |
1076 | pci_unmap_len_set(lbq_desc, maplen, PAGE_SIZE); | |
2c9a0d41 | 1077 | *lbq_desc->addr = cpu_to_le64(map); |
c4e84bde RM |
1078 | } |
1079 | clean_idx++; | |
1080 | if (clean_idx == rx_ring->lbq_len) | |
1081 | clean_idx = 0; | |
1082 | } | |
1083 | ||
1084 | rx_ring->lbq_clean_idx = clean_idx; | |
1085 | rx_ring->lbq_prod_idx += 16; | |
1086 | if (rx_ring->lbq_prod_idx == rx_ring->lbq_len) | |
1087 | rx_ring->lbq_prod_idx = 0; | |
49f2186d RM |
1088 | rx_ring->lbq_free_cnt -= 16; |
1089 | } | |
1090 | ||
1091 | if (start_idx != clean_idx) { | |
c4e84bde RM |
1092 | QPRINTK(qdev, RX_STATUS, DEBUG, |
1093 | "lbq: updating prod idx = %d.\n", | |
1094 | rx_ring->lbq_prod_idx); | |
1095 | ql_write_db_reg(rx_ring->lbq_prod_idx, | |
1096 | rx_ring->lbq_prod_idx_db_reg); | |
c4e84bde RM |
1097 | } |
1098 | } | |
1099 | ||
1100 | /* Process (refill) a small buffer queue. */ | |
1101 | static void ql_update_sbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
1102 | { | |
49f2186d RM |
1103 | u32 clean_idx = rx_ring->sbq_clean_idx; |
1104 | u32 start_idx = clean_idx; | |
c4e84bde | 1105 | struct bq_desc *sbq_desc; |
c4e84bde RM |
1106 | u64 map; |
1107 | int i; | |
1108 | ||
1109 | while (rx_ring->sbq_free_cnt > 16) { | |
1110 | for (i = 0; i < 16; i++) { | |
1111 | sbq_desc = &rx_ring->sbq[clean_idx]; | |
1112 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1113 | "sbq: try cleaning clean_idx = %d.\n", | |
1114 | clean_idx); | |
c4e84bde RM |
1115 | if (sbq_desc->p.skb == NULL) { |
1116 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1117 | "sbq: getting new skb for index %d.\n", | |
1118 | sbq_desc->index); | |
1119 | sbq_desc->p.skb = | |
1120 | netdev_alloc_skb(qdev->ndev, | |
1121 | rx_ring->sbq_buf_size); | |
1122 | if (sbq_desc->p.skb == NULL) { | |
1123 | QPRINTK(qdev, PROBE, ERR, | |
1124 | "Couldn't get an skb.\n"); | |
1125 | rx_ring->sbq_clean_idx = clean_idx; | |
1126 | return; | |
1127 | } | |
1128 | skb_reserve(sbq_desc->p.skb, QLGE_SB_PAD); | |
1129 | map = pci_map_single(qdev->pdev, | |
1130 | sbq_desc->p.skb->data, | |
1131 | rx_ring->sbq_buf_size / | |
1132 | 2, PCI_DMA_FROMDEVICE); | |
c907a35a RM |
1133 | if (pci_dma_mapping_error(qdev->pdev, map)) { |
1134 | QPRINTK(qdev, IFUP, ERR, "PCI mapping failed.\n"); | |
1135 | rx_ring->sbq_clean_idx = clean_idx; | |
06a3d510 RM |
1136 | dev_kfree_skb_any(sbq_desc->p.skb); |
1137 | sbq_desc->p.skb = NULL; | |
c907a35a RM |
1138 | return; |
1139 | } | |
c4e84bde RM |
1140 | pci_unmap_addr_set(sbq_desc, mapaddr, map); |
1141 | pci_unmap_len_set(sbq_desc, maplen, | |
1142 | rx_ring->sbq_buf_size / 2); | |
2c9a0d41 | 1143 | *sbq_desc->addr = cpu_to_le64(map); |
c4e84bde RM |
1144 | } |
1145 | ||
1146 | clean_idx++; | |
1147 | if (clean_idx == rx_ring->sbq_len) | |
1148 | clean_idx = 0; | |
1149 | } | |
1150 | rx_ring->sbq_clean_idx = clean_idx; | |
1151 | rx_ring->sbq_prod_idx += 16; | |
1152 | if (rx_ring->sbq_prod_idx == rx_ring->sbq_len) | |
1153 | rx_ring->sbq_prod_idx = 0; | |
49f2186d RM |
1154 | rx_ring->sbq_free_cnt -= 16; |
1155 | } | |
1156 | ||
1157 | if (start_idx != clean_idx) { | |
c4e84bde RM |
1158 | QPRINTK(qdev, RX_STATUS, DEBUG, |
1159 | "sbq: updating prod idx = %d.\n", | |
1160 | rx_ring->sbq_prod_idx); | |
1161 | ql_write_db_reg(rx_ring->sbq_prod_idx, | |
1162 | rx_ring->sbq_prod_idx_db_reg); | |
c4e84bde RM |
1163 | } |
1164 | } | |
1165 | ||
1166 | static void ql_update_buffer_queues(struct ql_adapter *qdev, | |
1167 | struct rx_ring *rx_ring) | |
1168 | { | |
1169 | ql_update_sbq(qdev, rx_ring); | |
1170 | ql_update_lbq(qdev, rx_ring); | |
1171 | } | |
1172 | ||
1173 | /* Unmaps tx buffers. Can be called from send() if a pci mapping | |
1174 | * fails at some stage, or from the interrupt when a tx completes. | |
1175 | */ | |
1176 | static void ql_unmap_send(struct ql_adapter *qdev, | |
1177 | struct tx_ring_desc *tx_ring_desc, int mapped) | |
1178 | { | |
1179 | int i; | |
1180 | for (i = 0; i < mapped; i++) { | |
1181 | if (i == 0 || (i == 7 && mapped > 7)) { | |
1182 | /* | |
1183 | * Unmap the skb->data area, or the | |
1184 | * external sglist (AKA the Outbound | |
1185 | * Address List (OAL)). | |
1186 | * If its the zeroeth element, then it's | |
1187 | * the skb->data area. If it's the 7th | |
1188 | * element and there is more than 6 frags, | |
1189 | * then its an OAL. | |
1190 | */ | |
1191 | if (i == 7) { | |
1192 | QPRINTK(qdev, TX_DONE, DEBUG, | |
1193 | "unmapping OAL area.\n"); | |
1194 | } | |
1195 | pci_unmap_single(qdev->pdev, | |
1196 | pci_unmap_addr(&tx_ring_desc->map[i], | |
1197 | mapaddr), | |
1198 | pci_unmap_len(&tx_ring_desc->map[i], | |
1199 | maplen), | |
1200 | PCI_DMA_TODEVICE); | |
1201 | } else { | |
1202 | QPRINTK(qdev, TX_DONE, DEBUG, "unmapping frag %d.\n", | |
1203 | i); | |
1204 | pci_unmap_page(qdev->pdev, | |
1205 | pci_unmap_addr(&tx_ring_desc->map[i], | |
1206 | mapaddr), | |
1207 | pci_unmap_len(&tx_ring_desc->map[i], | |
1208 | maplen), PCI_DMA_TODEVICE); | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | } | |
1213 | ||
1214 | /* Map the buffers for this transmit. This will return | |
1215 | * NETDEV_TX_BUSY or NETDEV_TX_OK based on success. | |
1216 | */ | |
1217 | static int ql_map_send(struct ql_adapter *qdev, | |
1218 | struct ob_mac_iocb_req *mac_iocb_ptr, | |
1219 | struct sk_buff *skb, struct tx_ring_desc *tx_ring_desc) | |
1220 | { | |
1221 | int len = skb_headlen(skb); | |
1222 | dma_addr_t map; | |
1223 | int frag_idx, err, map_idx = 0; | |
1224 | struct tx_buf_desc *tbd = mac_iocb_ptr->tbd; | |
1225 | int frag_cnt = skb_shinfo(skb)->nr_frags; | |
1226 | ||
1227 | if (frag_cnt) { | |
1228 | QPRINTK(qdev, TX_QUEUED, DEBUG, "frag_cnt = %d.\n", frag_cnt); | |
1229 | } | |
1230 | /* | |
1231 | * Map the skb buffer first. | |
1232 | */ | |
1233 | map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE); | |
1234 | ||
1235 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1236 | if (err) { | |
1237 | QPRINTK(qdev, TX_QUEUED, ERR, | |
1238 | "PCI mapping failed with error: %d\n", err); | |
1239 | ||
1240 | return NETDEV_TX_BUSY; | |
1241 | } | |
1242 | ||
1243 | tbd->len = cpu_to_le32(len); | |
1244 | tbd->addr = cpu_to_le64(map); | |
1245 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, map); | |
1246 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, len); | |
1247 | map_idx++; | |
1248 | ||
1249 | /* | |
1250 | * This loop fills the remainder of the 8 address descriptors | |
1251 | * in the IOCB. If there are more than 7 fragments, then the | |
1252 | * eighth address desc will point to an external list (OAL). | |
1253 | * When this happens, the remainder of the frags will be stored | |
1254 | * in this list. | |
1255 | */ | |
1256 | for (frag_idx = 0; frag_idx < frag_cnt; frag_idx++, map_idx++) { | |
1257 | skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_idx]; | |
1258 | tbd++; | |
1259 | if (frag_idx == 6 && frag_cnt > 7) { | |
1260 | /* Let's tack on an sglist. | |
1261 | * Our control block will now | |
1262 | * look like this: | |
1263 | * iocb->seg[0] = skb->data | |
1264 | * iocb->seg[1] = frag[0] | |
1265 | * iocb->seg[2] = frag[1] | |
1266 | * iocb->seg[3] = frag[2] | |
1267 | * iocb->seg[4] = frag[3] | |
1268 | * iocb->seg[5] = frag[4] | |
1269 | * iocb->seg[6] = frag[5] | |
1270 | * iocb->seg[7] = ptr to OAL (external sglist) | |
1271 | * oal->seg[0] = frag[6] | |
1272 | * oal->seg[1] = frag[7] | |
1273 | * oal->seg[2] = frag[8] | |
1274 | * oal->seg[3] = frag[9] | |
1275 | * oal->seg[4] = frag[10] | |
1276 | * etc... | |
1277 | */ | |
1278 | /* Tack on the OAL in the eighth segment of IOCB. */ | |
1279 | map = pci_map_single(qdev->pdev, &tx_ring_desc->oal, | |
1280 | sizeof(struct oal), | |
1281 | PCI_DMA_TODEVICE); | |
1282 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1283 | if (err) { | |
1284 | QPRINTK(qdev, TX_QUEUED, ERR, | |
1285 | "PCI mapping outbound address list with error: %d\n", | |
1286 | err); | |
1287 | goto map_error; | |
1288 | } | |
1289 | ||
1290 | tbd->addr = cpu_to_le64(map); | |
1291 | /* | |
1292 | * The length is the number of fragments | |
1293 | * that remain to be mapped times the length | |
1294 | * of our sglist (OAL). | |
1295 | */ | |
1296 | tbd->len = | |
1297 | cpu_to_le32((sizeof(struct tx_buf_desc) * | |
1298 | (frag_cnt - frag_idx)) | TX_DESC_C); | |
1299 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, | |
1300 | map); | |
1301 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, | |
1302 | sizeof(struct oal)); | |
1303 | tbd = (struct tx_buf_desc *)&tx_ring_desc->oal; | |
1304 | map_idx++; | |
1305 | } | |
1306 | ||
1307 | map = | |
1308 | pci_map_page(qdev->pdev, frag->page, | |
1309 | frag->page_offset, frag->size, | |
1310 | PCI_DMA_TODEVICE); | |
1311 | ||
1312 | err = pci_dma_mapping_error(qdev->pdev, map); | |
1313 | if (err) { | |
1314 | QPRINTK(qdev, TX_QUEUED, ERR, | |
1315 | "PCI mapping frags failed with error: %d.\n", | |
1316 | err); | |
1317 | goto map_error; | |
1318 | } | |
1319 | ||
1320 | tbd->addr = cpu_to_le64(map); | |
1321 | tbd->len = cpu_to_le32(frag->size); | |
1322 | pci_unmap_addr_set(&tx_ring_desc->map[map_idx], mapaddr, map); | |
1323 | pci_unmap_len_set(&tx_ring_desc->map[map_idx], maplen, | |
1324 | frag->size); | |
1325 | ||
1326 | } | |
1327 | /* Save the number of segments we've mapped. */ | |
1328 | tx_ring_desc->map_cnt = map_idx; | |
1329 | /* Terminate the last segment. */ | |
1330 | tbd->len = cpu_to_le32(le32_to_cpu(tbd->len) | TX_DESC_E); | |
1331 | return NETDEV_TX_OK; | |
1332 | ||
1333 | map_error: | |
1334 | /* | |
1335 | * If the first frag mapping failed, then i will be zero. | |
1336 | * This causes the unmap of the skb->data area. Otherwise | |
1337 | * we pass in the number of frags that mapped successfully | |
1338 | * so they can be umapped. | |
1339 | */ | |
1340 | ql_unmap_send(qdev, tx_ring_desc, map_idx); | |
1341 | return NETDEV_TX_BUSY; | |
1342 | } | |
1343 | ||
8668ae92 | 1344 | static void ql_realign_skb(struct sk_buff *skb, int len) |
c4e84bde RM |
1345 | { |
1346 | void *temp_addr = skb->data; | |
1347 | ||
1348 | /* Undo the skb_reserve(skb,32) we did before | |
1349 | * giving to hardware, and realign data on | |
1350 | * a 2-byte boundary. | |
1351 | */ | |
1352 | skb->data -= QLGE_SB_PAD - NET_IP_ALIGN; | |
1353 | skb->tail -= QLGE_SB_PAD - NET_IP_ALIGN; | |
1354 | skb_copy_to_linear_data(skb, temp_addr, | |
1355 | (unsigned int)len); | |
1356 | } | |
1357 | ||
1358 | /* | |
1359 | * This function builds an skb for the given inbound | |
1360 | * completion. It will be rewritten for readability in the near | |
1361 | * future, but for not it works well. | |
1362 | */ | |
1363 | static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev, | |
1364 | struct rx_ring *rx_ring, | |
1365 | struct ib_mac_iocb_rsp *ib_mac_rsp) | |
1366 | { | |
1367 | struct bq_desc *lbq_desc; | |
1368 | struct bq_desc *sbq_desc; | |
1369 | struct sk_buff *skb = NULL; | |
1370 | u32 length = le32_to_cpu(ib_mac_rsp->data_len); | |
1371 | u32 hdr_len = le32_to_cpu(ib_mac_rsp->hdr_len); | |
1372 | ||
1373 | /* | |
1374 | * Handle the header buffer if present. | |
1375 | */ | |
1376 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HV && | |
1377 | ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
1378 | QPRINTK(qdev, RX_STATUS, DEBUG, "Header of %d bytes in small buffer.\n", hdr_len); | |
1379 | /* | |
1380 | * Headers fit nicely into a small buffer. | |
1381 | */ | |
1382 | sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1383 | pci_unmap_single(qdev->pdev, | |
1384 | pci_unmap_addr(sbq_desc, mapaddr), | |
1385 | pci_unmap_len(sbq_desc, maplen), | |
1386 | PCI_DMA_FROMDEVICE); | |
1387 | skb = sbq_desc->p.skb; | |
1388 | ql_realign_skb(skb, hdr_len); | |
1389 | skb_put(skb, hdr_len); | |
1390 | sbq_desc->p.skb = NULL; | |
1391 | } | |
1392 | ||
1393 | /* | |
1394 | * Handle the data buffer(s). | |
1395 | */ | |
1396 | if (unlikely(!length)) { /* Is there data too? */ | |
1397 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1398 | "No Data buffer in this packet.\n"); | |
1399 | return skb; | |
1400 | } | |
1401 | ||
1402 | if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DS) { | |
1403 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
1404 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1405 | "Headers in small, data of %d bytes in small, combine them.\n", length); | |
1406 | /* | |
1407 | * Data is less than small buffer size so it's | |
1408 | * stuffed in a small buffer. | |
1409 | * For this case we append the data | |
1410 | * from the "data" small buffer to the "header" small | |
1411 | * buffer. | |
1412 | */ | |
1413 | sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1414 | pci_dma_sync_single_for_cpu(qdev->pdev, | |
1415 | pci_unmap_addr | |
1416 | (sbq_desc, mapaddr), | |
1417 | pci_unmap_len | |
1418 | (sbq_desc, maplen), | |
1419 | PCI_DMA_FROMDEVICE); | |
1420 | memcpy(skb_put(skb, length), | |
1421 | sbq_desc->p.skb->data, length); | |
1422 | pci_dma_sync_single_for_device(qdev->pdev, | |
1423 | pci_unmap_addr | |
1424 | (sbq_desc, | |
1425 | mapaddr), | |
1426 | pci_unmap_len | |
1427 | (sbq_desc, | |
1428 | maplen), | |
1429 | PCI_DMA_FROMDEVICE); | |
1430 | } else { | |
1431 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1432 | "%d bytes in a single small buffer.\n", length); | |
1433 | sbq_desc = ql_get_curr_sbuf(rx_ring); | |
1434 | skb = sbq_desc->p.skb; | |
1435 | ql_realign_skb(skb, length); | |
1436 | skb_put(skb, length); | |
1437 | pci_unmap_single(qdev->pdev, | |
1438 | pci_unmap_addr(sbq_desc, | |
1439 | mapaddr), | |
1440 | pci_unmap_len(sbq_desc, | |
1441 | maplen), | |
1442 | PCI_DMA_FROMDEVICE); | |
1443 | sbq_desc->p.skb = NULL; | |
1444 | } | |
1445 | } else if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) { | |
1446 | if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS) { | |
1447 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1448 | "Header in small, %d bytes in large. Chain large to small!\n", length); | |
1449 | /* | |
1450 | * The data is in a single large buffer. We | |
1451 | * chain it to the header buffer's skb and let | |
1452 | * it rip. | |
1453 | */ | |
1454 | lbq_desc = ql_get_curr_lbuf(rx_ring); | |
1455 | pci_unmap_page(qdev->pdev, | |
1456 | pci_unmap_addr(lbq_desc, | |
1457 | mapaddr), | |
1458 | pci_unmap_len(lbq_desc, maplen), | |
1459 | PCI_DMA_FROMDEVICE); | |
1460 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1461 | "Chaining page to skb.\n"); | |
1462 | skb_fill_page_desc(skb, 0, lbq_desc->p.lbq_page, | |
1463 | 0, length); | |
1464 | skb->len += length; | |
1465 | skb->data_len += length; | |
1466 | skb->truesize += length; | |
1467 | lbq_desc->p.lbq_page = NULL; | |
1468 | } else { | |
1469 | /* | |
1470 | * The headers and data are in a single large buffer. We | |
1471 | * copy it to a new skb and let it go. This can happen with | |
1472 | * jumbo mtu on a non-TCP/UDP frame. | |
1473 | */ | |
1474 | lbq_desc = ql_get_curr_lbuf(rx_ring); | |
1475 | skb = netdev_alloc_skb(qdev->ndev, length); | |
1476 | if (skb == NULL) { | |
1477 | QPRINTK(qdev, PROBE, DEBUG, | |
1478 | "No skb available, drop the packet.\n"); | |
1479 | return NULL; | |
1480 | } | |
4055c7d4 RM |
1481 | pci_unmap_page(qdev->pdev, |
1482 | pci_unmap_addr(lbq_desc, | |
1483 | mapaddr), | |
1484 | pci_unmap_len(lbq_desc, maplen), | |
1485 | PCI_DMA_FROMDEVICE); | |
c4e84bde RM |
1486 | skb_reserve(skb, NET_IP_ALIGN); |
1487 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1488 | "%d bytes of headers and data in large. Chain page to new skb and pull tail.\n", length); | |
1489 | skb_fill_page_desc(skb, 0, lbq_desc->p.lbq_page, | |
1490 | 0, length); | |
1491 | skb->len += length; | |
1492 | skb->data_len += length; | |
1493 | skb->truesize += length; | |
1494 | length -= length; | |
1495 | lbq_desc->p.lbq_page = NULL; | |
1496 | __pskb_pull_tail(skb, | |
1497 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ? | |
1498 | VLAN_ETH_HLEN : ETH_HLEN); | |
1499 | } | |
1500 | } else { | |
1501 | /* | |
1502 | * The data is in a chain of large buffers | |
1503 | * pointed to by a small buffer. We loop | |
1504 | * thru and chain them to the our small header | |
1505 | * buffer's skb. | |
1506 | * frags: There are 18 max frags and our small | |
1507 | * buffer will hold 32 of them. The thing is, | |
1508 | * we'll use 3 max for our 9000 byte jumbo | |
1509 | * frames. If the MTU goes up we could | |
1510 | * eventually be in trouble. | |
1511 | */ | |
1512 | int size, offset, i = 0; | |
2c9a0d41 | 1513 | __le64 *bq, bq_array[8]; |
c4e84bde RM |
1514 | sbq_desc = ql_get_curr_sbuf(rx_ring); |
1515 | pci_unmap_single(qdev->pdev, | |
1516 | pci_unmap_addr(sbq_desc, mapaddr), | |
1517 | pci_unmap_len(sbq_desc, maplen), | |
1518 | PCI_DMA_FROMDEVICE); | |
1519 | if (!(ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HS)) { | |
1520 | /* | |
1521 | * This is an non TCP/UDP IP frame, so | |
1522 | * the headers aren't split into a small | |
1523 | * buffer. We have to use the small buffer | |
1524 | * that contains our sg list as our skb to | |
1525 | * send upstairs. Copy the sg list here to | |
1526 | * a local buffer and use it to find the | |
1527 | * pages to chain. | |
1528 | */ | |
1529 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1530 | "%d bytes of headers & data in chain of large.\n", length); | |
1531 | skb = sbq_desc->p.skb; | |
1532 | bq = &bq_array[0]; | |
1533 | memcpy(bq, skb->data, sizeof(bq_array)); | |
1534 | sbq_desc->p.skb = NULL; | |
1535 | skb_reserve(skb, NET_IP_ALIGN); | |
1536 | } else { | |
1537 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1538 | "Headers in small, %d bytes of data in chain of large.\n", length); | |
2c9a0d41 | 1539 | bq = (__le64 *)sbq_desc->p.skb->data; |
c4e84bde RM |
1540 | } |
1541 | while (length > 0) { | |
1542 | lbq_desc = ql_get_curr_lbuf(rx_ring); | |
c4e84bde RM |
1543 | pci_unmap_page(qdev->pdev, |
1544 | pci_unmap_addr(lbq_desc, | |
1545 | mapaddr), | |
1546 | pci_unmap_len(lbq_desc, | |
1547 | maplen), | |
1548 | PCI_DMA_FROMDEVICE); | |
1549 | size = (length < PAGE_SIZE) ? length : PAGE_SIZE; | |
1550 | offset = 0; | |
1551 | ||
1552 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1553 | "Adding page %d to skb for %d bytes.\n", | |
1554 | i, size); | |
1555 | skb_fill_page_desc(skb, i, lbq_desc->p.lbq_page, | |
1556 | offset, size); | |
1557 | skb->len += size; | |
1558 | skb->data_len += size; | |
1559 | skb->truesize += size; | |
1560 | length -= size; | |
1561 | lbq_desc->p.lbq_page = NULL; | |
1562 | bq++; | |
1563 | i++; | |
1564 | } | |
1565 | __pskb_pull_tail(skb, (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ? | |
1566 | VLAN_ETH_HLEN : ETH_HLEN); | |
1567 | } | |
1568 | return skb; | |
1569 | } | |
1570 | ||
1571 | /* Process an inbound completion from an rx ring. */ | |
1572 | static void ql_process_mac_rx_intr(struct ql_adapter *qdev, | |
1573 | struct rx_ring *rx_ring, | |
1574 | struct ib_mac_iocb_rsp *ib_mac_rsp) | |
1575 | { | |
1576 | struct net_device *ndev = qdev->ndev; | |
1577 | struct sk_buff *skb = NULL; | |
22bdd4f5 RM |
1578 | u16 vlan_id = (le16_to_cpu(ib_mac_rsp->vlan_id) & |
1579 | IB_MAC_IOCB_RSP_VLAN_MASK) | |
c4e84bde RM |
1580 | |
1581 | QL_DUMP_IB_MAC_RSP(ib_mac_rsp); | |
1582 | ||
1583 | skb = ql_build_rx_skb(qdev, rx_ring, ib_mac_rsp); | |
1584 | if (unlikely(!skb)) { | |
1585 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1586 | "No skb available, drop packet.\n"); | |
1587 | return; | |
1588 | } | |
1589 | ||
a32959cd RM |
1590 | /* Frame error, so drop the packet. */ |
1591 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { | |
1592 | QPRINTK(qdev, DRV, ERR, "Receive error, flags2 = 0x%x\n", | |
1593 | ib_mac_rsp->flags2); | |
1594 | dev_kfree_skb_any(skb); | |
1595 | return; | |
1596 | } | |
ec33a491 RM |
1597 | |
1598 | /* The max framesize filter on this chip is set higher than | |
1599 | * MTU since FCoE uses 2k frames. | |
1600 | */ | |
1601 | if (skb->len > ndev->mtu + ETH_HLEN) { | |
1602 | dev_kfree_skb_any(skb); | |
1603 | return; | |
1604 | } | |
1605 | ||
c4e84bde RM |
1606 | prefetch(skb->data); |
1607 | skb->dev = ndev; | |
1608 | if (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) { | |
1609 | QPRINTK(qdev, RX_STATUS, DEBUG, "%s%s%s Multicast.\n", | |
1610 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1611 | IB_MAC_IOCB_RSP_M_HASH ? "Hash" : "", | |
1612 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1613 | IB_MAC_IOCB_RSP_M_REG ? "Registered" : "", | |
1614 | (ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_M_MASK) == | |
1615 | IB_MAC_IOCB_RSP_M_PROM ? "Promiscuous" : ""); | |
1616 | } | |
1617 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_P) { | |
1618 | QPRINTK(qdev, RX_STATUS, DEBUG, "Promiscuous Packet.\n"); | |
1619 | } | |
d555f592 | 1620 | |
d555f592 RM |
1621 | skb->protocol = eth_type_trans(skb, ndev); |
1622 | skb->ip_summed = CHECKSUM_NONE; | |
1623 | ||
1624 | /* If rx checksum is on, and there are no | |
1625 | * csum or frame errors. | |
1626 | */ | |
1627 | if (qdev->rx_csum && | |
d555f592 RM |
1628 | !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK)) { |
1629 | /* TCP frame. */ | |
1630 | if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) { | |
1631 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1632 | "TCP checksum done!\n"); | |
1633 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1634 | } else if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && | |
1635 | (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) { | |
1636 | /* Unfragmented ipv4 UDP frame. */ | |
1637 | struct iphdr *iph = (struct iphdr *) skb->data; | |
1638 | if (!(iph->frag_off & | |
1639 | cpu_to_be16(IP_MF|IP_OFFSET))) { | |
1640 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1641 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1642 | "TCP checksum done!\n"); | |
1643 | } | |
1644 | } | |
c4e84bde | 1645 | } |
d555f592 | 1646 | |
c4e84bde RM |
1647 | qdev->stats.rx_packets++; |
1648 | qdev->stats.rx_bytes += skb->len; | |
b2014ff8 | 1649 | skb_record_rx_queue(skb, rx_ring->cq_id); |
22bdd4f5 RM |
1650 | if (skb->ip_summed == CHECKSUM_UNNECESSARY) { |
1651 | if (qdev->vlgrp && | |
1652 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) && | |
1653 | (vlan_id != 0)) | |
1654 | vlan_gro_receive(&rx_ring->napi, qdev->vlgrp, | |
1655 | vlan_id, skb); | |
1656 | else | |
1657 | napi_gro_receive(&rx_ring->napi, skb); | |
c4e84bde | 1658 | } else { |
22bdd4f5 RM |
1659 | if (qdev->vlgrp && |
1660 | (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) && | |
1661 | (vlan_id != 0)) | |
1662 | vlan_hwaccel_receive_skb(skb, qdev->vlgrp, vlan_id); | |
1663 | else | |
1664 | netif_receive_skb(skb); | |
c4e84bde | 1665 | } |
c4e84bde RM |
1666 | } |
1667 | ||
1668 | /* Process an outbound completion from an rx ring. */ | |
1669 | static void ql_process_mac_tx_intr(struct ql_adapter *qdev, | |
1670 | struct ob_mac_iocb_rsp *mac_rsp) | |
1671 | { | |
1672 | struct tx_ring *tx_ring; | |
1673 | struct tx_ring_desc *tx_ring_desc; | |
1674 | ||
1675 | QL_DUMP_OB_MAC_RSP(mac_rsp); | |
1676 | tx_ring = &qdev->tx_ring[mac_rsp->txq_idx]; | |
1677 | tx_ring_desc = &tx_ring->q[mac_rsp->tid]; | |
1678 | ql_unmap_send(qdev, tx_ring_desc, tx_ring_desc->map_cnt); | |
13cfd5be | 1679 | qdev->stats.tx_bytes += (tx_ring_desc->skb)->len; |
c4e84bde RM |
1680 | qdev->stats.tx_packets++; |
1681 | dev_kfree_skb(tx_ring_desc->skb); | |
1682 | tx_ring_desc->skb = NULL; | |
1683 | ||
1684 | if (unlikely(mac_rsp->flags1 & (OB_MAC_IOCB_RSP_E | | |
1685 | OB_MAC_IOCB_RSP_S | | |
1686 | OB_MAC_IOCB_RSP_L | | |
1687 | OB_MAC_IOCB_RSP_P | OB_MAC_IOCB_RSP_B))) { | |
1688 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_E) { | |
1689 | QPRINTK(qdev, TX_DONE, WARNING, | |
1690 | "Total descriptor length did not match transfer length.\n"); | |
1691 | } | |
1692 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_S) { | |
1693 | QPRINTK(qdev, TX_DONE, WARNING, | |
1694 | "Frame too short to be legal, not sent.\n"); | |
1695 | } | |
1696 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_L) { | |
1697 | QPRINTK(qdev, TX_DONE, WARNING, | |
1698 | "Frame too long, but sent anyway.\n"); | |
1699 | } | |
1700 | if (mac_rsp->flags1 & OB_MAC_IOCB_RSP_B) { | |
1701 | QPRINTK(qdev, TX_DONE, WARNING, | |
1702 | "PCI backplane error. Frame not sent.\n"); | |
1703 | } | |
1704 | } | |
1705 | atomic_inc(&tx_ring->tx_count); | |
1706 | } | |
1707 | ||
1708 | /* Fire up a handler to reset the MPI processor. */ | |
1709 | void ql_queue_fw_error(struct ql_adapter *qdev) | |
1710 | { | |
6a473308 | 1711 | ql_link_off(qdev); |
c4e84bde RM |
1712 | queue_delayed_work(qdev->workqueue, &qdev->mpi_reset_work, 0); |
1713 | } | |
1714 | ||
1715 | void ql_queue_asic_error(struct ql_adapter *qdev) | |
1716 | { | |
6a473308 | 1717 | ql_link_off(qdev); |
c4e84bde | 1718 | ql_disable_interrupts(qdev); |
6497b607 RM |
1719 | /* Clear adapter up bit to signal the recovery |
1720 | * process that it shouldn't kill the reset worker | |
1721 | * thread | |
1722 | */ | |
1723 | clear_bit(QL_ADAPTER_UP, &qdev->flags); | |
c4e84bde RM |
1724 | queue_delayed_work(qdev->workqueue, &qdev->asic_reset_work, 0); |
1725 | } | |
1726 | ||
1727 | static void ql_process_chip_ae_intr(struct ql_adapter *qdev, | |
1728 | struct ib_ae_iocb_rsp *ib_ae_rsp) | |
1729 | { | |
1730 | switch (ib_ae_rsp->event) { | |
1731 | case MGMT_ERR_EVENT: | |
1732 | QPRINTK(qdev, RX_ERR, ERR, | |
1733 | "Management Processor Fatal Error.\n"); | |
1734 | ql_queue_fw_error(qdev); | |
1735 | return; | |
1736 | ||
1737 | case CAM_LOOKUP_ERR_EVENT: | |
1738 | QPRINTK(qdev, LINK, ERR, | |
1739 | "Multiple CAM hits lookup occurred.\n"); | |
1740 | QPRINTK(qdev, DRV, ERR, "This event shouldn't occur.\n"); | |
1741 | ql_queue_asic_error(qdev); | |
1742 | return; | |
1743 | ||
1744 | case SOFT_ECC_ERROR_EVENT: | |
1745 | QPRINTK(qdev, RX_ERR, ERR, "Soft ECC error detected.\n"); | |
1746 | ql_queue_asic_error(qdev); | |
1747 | break; | |
1748 | ||
1749 | case PCI_ERR_ANON_BUF_RD: | |
1750 | QPRINTK(qdev, RX_ERR, ERR, | |
1751 | "PCI error occurred when reading anonymous buffers from rx_ring %d.\n", | |
1752 | ib_ae_rsp->q_id); | |
1753 | ql_queue_asic_error(qdev); | |
1754 | break; | |
1755 | ||
1756 | default: | |
1757 | QPRINTK(qdev, DRV, ERR, "Unexpected event %d.\n", | |
1758 | ib_ae_rsp->event); | |
1759 | ql_queue_asic_error(qdev); | |
1760 | break; | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | static int ql_clean_outbound_rx_ring(struct rx_ring *rx_ring) | |
1765 | { | |
1766 | struct ql_adapter *qdev = rx_ring->qdev; | |
ba7cd3ba | 1767 | u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
1768 | struct ob_mac_iocb_rsp *net_rsp = NULL; |
1769 | int count = 0; | |
1770 | ||
1e213303 | 1771 | struct tx_ring *tx_ring; |
c4e84bde RM |
1772 | /* While there are entries in the completion queue. */ |
1773 | while (prod != rx_ring->cnsmr_idx) { | |
1774 | ||
1775 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1776 | "cq_id = %d, prod = %d, cnsmr = %d.\n.", rx_ring->cq_id, | |
1777 | prod, rx_ring->cnsmr_idx); | |
1778 | ||
1779 | net_rsp = (struct ob_mac_iocb_rsp *)rx_ring->curr_entry; | |
1780 | rmb(); | |
1781 | switch (net_rsp->opcode) { | |
1782 | ||
1783 | case OPCODE_OB_MAC_TSO_IOCB: | |
1784 | case OPCODE_OB_MAC_IOCB: | |
1785 | ql_process_mac_tx_intr(qdev, net_rsp); | |
1786 | break; | |
1787 | default: | |
1788 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1789 | "Hit default case, not handled! dropping the packet, opcode = %x.\n", | |
1790 | net_rsp->opcode); | |
1791 | } | |
1792 | count++; | |
1793 | ql_update_cq(rx_ring); | |
ba7cd3ba | 1794 | prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
1795 | } |
1796 | ql_write_cq_idx(rx_ring); | |
1e213303 RM |
1797 | tx_ring = &qdev->tx_ring[net_rsp->txq_idx]; |
1798 | if (__netif_subqueue_stopped(qdev->ndev, tx_ring->wq_id) && | |
1799 | net_rsp != NULL) { | |
c4e84bde RM |
1800 | if (atomic_read(&tx_ring->queue_stopped) && |
1801 | (atomic_read(&tx_ring->tx_count) > (tx_ring->wq_len / 4))) | |
1802 | /* | |
1803 | * The queue got stopped because the tx_ring was full. | |
1804 | * Wake it up, because it's now at least 25% empty. | |
1805 | */ | |
1e213303 | 1806 | netif_wake_subqueue(qdev->ndev, tx_ring->wq_id); |
c4e84bde RM |
1807 | } |
1808 | ||
1809 | return count; | |
1810 | } | |
1811 | ||
1812 | static int ql_clean_inbound_rx_ring(struct rx_ring *rx_ring, int budget) | |
1813 | { | |
1814 | struct ql_adapter *qdev = rx_ring->qdev; | |
ba7cd3ba | 1815 | u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
1816 | struct ql_net_rsp_iocb *net_rsp; |
1817 | int count = 0; | |
1818 | ||
1819 | /* While there are entries in the completion queue. */ | |
1820 | while (prod != rx_ring->cnsmr_idx) { | |
1821 | ||
1822 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1823 | "cq_id = %d, prod = %d, cnsmr = %d.\n.", rx_ring->cq_id, | |
1824 | prod, rx_ring->cnsmr_idx); | |
1825 | ||
1826 | net_rsp = rx_ring->curr_entry; | |
1827 | rmb(); | |
1828 | switch (net_rsp->opcode) { | |
1829 | case OPCODE_IB_MAC_IOCB: | |
1830 | ql_process_mac_rx_intr(qdev, rx_ring, | |
1831 | (struct ib_mac_iocb_rsp *) | |
1832 | net_rsp); | |
1833 | break; | |
1834 | ||
1835 | case OPCODE_IB_AE_IOCB: | |
1836 | ql_process_chip_ae_intr(qdev, (struct ib_ae_iocb_rsp *) | |
1837 | net_rsp); | |
1838 | break; | |
1839 | default: | |
1840 | { | |
1841 | QPRINTK(qdev, RX_STATUS, DEBUG, | |
1842 | "Hit default case, not handled! dropping the packet, opcode = %x.\n", | |
1843 | net_rsp->opcode); | |
1844 | } | |
1845 | } | |
1846 | count++; | |
1847 | ql_update_cq(rx_ring); | |
ba7cd3ba | 1848 | prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg); |
c4e84bde RM |
1849 | if (count == budget) |
1850 | break; | |
1851 | } | |
1852 | ql_update_buffer_queues(qdev, rx_ring); | |
1853 | ql_write_cq_idx(rx_ring); | |
1854 | return count; | |
1855 | } | |
1856 | ||
1857 | static int ql_napi_poll_msix(struct napi_struct *napi, int budget) | |
1858 | { | |
1859 | struct rx_ring *rx_ring = container_of(napi, struct rx_ring, napi); | |
1860 | struct ql_adapter *qdev = rx_ring->qdev; | |
39aa8165 RM |
1861 | struct rx_ring *trx_ring; |
1862 | int i, work_done = 0; | |
1863 | struct intr_context *ctx = &qdev->intr_context[rx_ring->cq_id]; | |
c4e84bde RM |
1864 | |
1865 | QPRINTK(qdev, RX_STATUS, DEBUG, "Enter, NAPI POLL cq_id = %d.\n", | |
1866 | rx_ring->cq_id); | |
1867 | ||
39aa8165 RM |
1868 | /* Service the TX rings first. They start |
1869 | * right after the RSS rings. */ | |
1870 | for (i = qdev->rss_ring_count; i < qdev->rx_ring_count; i++) { | |
1871 | trx_ring = &qdev->rx_ring[i]; | |
1872 | /* If this TX completion ring belongs to this vector and | |
1873 | * it's not empty then service it. | |
1874 | */ | |
1875 | if ((ctx->irq_mask & (1 << trx_ring->cq_id)) && | |
1876 | (ql_read_sh_reg(trx_ring->prod_idx_sh_reg) != | |
1877 | trx_ring->cnsmr_idx)) { | |
1878 | QPRINTK(qdev, INTR, DEBUG, | |
1879 | "%s: Servicing TX completion ring %d.\n", | |
1880 | __func__, trx_ring->cq_id); | |
1881 | ql_clean_outbound_rx_ring(trx_ring); | |
1882 | } | |
1883 | } | |
1884 | ||
1885 | /* | |
1886 | * Now service the RSS ring if it's active. | |
1887 | */ | |
1888 | if (ql_read_sh_reg(rx_ring->prod_idx_sh_reg) != | |
1889 | rx_ring->cnsmr_idx) { | |
1890 | QPRINTK(qdev, INTR, DEBUG, | |
1891 | "%s: Servicing RX completion ring %d.\n", | |
1892 | __func__, rx_ring->cq_id); | |
1893 | work_done = ql_clean_inbound_rx_ring(rx_ring, budget); | |
1894 | } | |
1895 | ||
c4e84bde | 1896 | if (work_done < budget) { |
22bdd4f5 | 1897 | napi_complete(napi); |
c4e84bde RM |
1898 | ql_enable_completion_interrupt(qdev, rx_ring->irq); |
1899 | } | |
1900 | return work_done; | |
1901 | } | |
1902 | ||
1903 | static void ql_vlan_rx_register(struct net_device *ndev, struct vlan_group *grp) | |
1904 | { | |
1905 | struct ql_adapter *qdev = netdev_priv(ndev); | |
1906 | ||
1907 | qdev->vlgrp = grp; | |
1908 | if (grp) { | |
1909 | QPRINTK(qdev, IFUP, DEBUG, "Turning on VLAN in NIC_RCV_CFG.\n"); | |
1910 | ql_write32(qdev, NIC_RCV_CFG, NIC_RCV_CFG_VLAN_MASK | | |
1911 | NIC_RCV_CFG_VLAN_MATCH_AND_NON); | |
1912 | } else { | |
1913 | QPRINTK(qdev, IFUP, DEBUG, | |
1914 | "Turning off VLAN in NIC_RCV_CFG.\n"); | |
1915 | ql_write32(qdev, NIC_RCV_CFG, NIC_RCV_CFG_VLAN_MASK); | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | static void ql_vlan_rx_add_vid(struct net_device *ndev, u16 vid) | |
1920 | { | |
1921 | struct ql_adapter *qdev = netdev_priv(ndev); | |
1922 | u32 enable_bit = MAC_ADDR_E; | |
cc288f54 | 1923 | int status; |
c4e84bde | 1924 | |
cc288f54 RM |
1925 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
1926 | if (status) | |
1927 | return; | |
c4e84bde RM |
1928 | if (ql_set_mac_addr_reg |
1929 | (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { | |
1930 | QPRINTK(qdev, IFUP, ERR, "Failed to init vlan address.\n"); | |
1931 | } | |
cc288f54 | 1932 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
1933 | } |
1934 | ||
1935 | static void ql_vlan_rx_kill_vid(struct net_device *ndev, u16 vid) | |
1936 | { | |
1937 | struct ql_adapter *qdev = netdev_priv(ndev); | |
1938 | u32 enable_bit = 0; | |
cc288f54 RM |
1939 | int status; |
1940 | ||
1941 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); | |
1942 | if (status) | |
1943 | return; | |
c4e84bde | 1944 | |
c4e84bde RM |
1945 | if (ql_set_mac_addr_reg |
1946 | (qdev, (u8 *) &enable_bit, MAC_ADDR_TYPE_VLAN, vid)) { | |
1947 | QPRINTK(qdev, IFUP, ERR, "Failed to clear vlan address.\n"); | |
1948 | } | |
cc288f54 | 1949 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
1950 | |
1951 | } | |
1952 | ||
c4e84bde RM |
1953 | /* MSI-X Multiple Vector Interrupt Handler for inbound completions. */ |
1954 | static irqreturn_t qlge_msix_rx_isr(int irq, void *dev_id) | |
1955 | { | |
1956 | struct rx_ring *rx_ring = dev_id; | |
288379f0 | 1957 | napi_schedule(&rx_ring->napi); |
c4e84bde RM |
1958 | return IRQ_HANDLED; |
1959 | } | |
1960 | ||
c4e84bde RM |
1961 | /* This handles a fatal error, MPI activity, and the default |
1962 | * rx_ring in an MSI-X multiple vector environment. | |
1963 | * In MSI/Legacy environment it also process the rest of | |
1964 | * the rx_rings. | |
1965 | */ | |
1966 | static irqreturn_t qlge_isr(int irq, void *dev_id) | |
1967 | { | |
1968 | struct rx_ring *rx_ring = dev_id; | |
1969 | struct ql_adapter *qdev = rx_ring->qdev; | |
1970 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
1971 | u32 var; | |
c4e84bde RM |
1972 | int work_done = 0; |
1973 | ||
bb0d215c RM |
1974 | spin_lock(&qdev->hw_lock); |
1975 | if (atomic_read(&qdev->intr_context[0].irq_cnt)) { | |
1976 | QPRINTK(qdev, INTR, DEBUG, "Shared Interrupt, Not ours!\n"); | |
1977 | spin_unlock(&qdev->hw_lock); | |
1978 | return IRQ_NONE; | |
c4e84bde | 1979 | } |
bb0d215c | 1980 | spin_unlock(&qdev->hw_lock); |
c4e84bde | 1981 | |
bb0d215c | 1982 | var = ql_disable_completion_interrupt(qdev, intr_context->intr); |
c4e84bde RM |
1983 | |
1984 | /* | |
1985 | * Check for fatal error. | |
1986 | */ | |
1987 | if (var & STS_FE) { | |
1988 | ql_queue_asic_error(qdev); | |
1989 | QPRINTK(qdev, INTR, ERR, "Got fatal error, STS = %x.\n", var); | |
1990 | var = ql_read32(qdev, ERR_STS); | |
1991 | QPRINTK(qdev, INTR, ERR, | |
1992 | "Resetting chip. Error Status Register = 0x%x\n", var); | |
1993 | return IRQ_HANDLED; | |
1994 | } | |
1995 | ||
1996 | /* | |
1997 | * Check MPI processor activity. | |
1998 | */ | |
5ee22a5a RM |
1999 | if ((var & STS_PI) && |
2000 | (ql_read32(qdev, INTR_MASK) & INTR_MASK_PI)) { | |
c4e84bde RM |
2001 | /* |
2002 | * We've got an async event or mailbox completion. | |
2003 | * Handle it and clear the source of the interrupt. | |
2004 | */ | |
2005 | QPRINTK(qdev, INTR, ERR, "Got MPI processor interrupt.\n"); | |
2006 | ql_disable_completion_interrupt(qdev, intr_context->intr); | |
5ee22a5a RM |
2007 | ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16)); |
2008 | queue_delayed_work_on(smp_processor_id(), | |
2009 | qdev->workqueue, &qdev->mpi_work, 0); | |
c4e84bde RM |
2010 | work_done++; |
2011 | } | |
2012 | ||
2013 | /* | |
39aa8165 RM |
2014 | * Get the bit-mask that shows the active queues for this |
2015 | * pass. Compare it to the queues that this irq services | |
2016 | * and call napi if there's a match. | |
c4e84bde | 2017 | */ |
39aa8165 RM |
2018 | var = ql_read32(qdev, ISR1); |
2019 | if (var & intr_context->irq_mask) { | |
c4e84bde | 2020 | QPRINTK(qdev, INTR, INFO, |
39aa8165 RM |
2021 | "Waking handler for rx_ring[0].\n"); |
2022 | ql_disable_completion_interrupt(qdev, intr_context->intr); | |
288379f0 | 2023 | napi_schedule(&rx_ring->napi); |
c4e84bde RM |
2024 | work_done++; |
2025 | } | |
bb0d215c | 2026 | ql_enable_completion_interrupt(qdev, intr_context->intr); |
c4e84bde RM |
2027 | return work_done ? IRQ_HANDLED : IRQ_NONE; |
2028 | } | |
2029 | ||
2030 | static int ql_tso(struct sk_buff *skb, struct ob_mac_tso_iocb_req *mac_iocb_ptr) | |
2031 | { | |
2032 | ||
2033 | if (skb_is_gso(skb)) { | |
2034 | int err; | |
2035 | if (skb_header_cloned(skb)) { | |
2036 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
2037 | if (err) | |
2038 | return err; | |
2039 | } | |
2040 | ||
2041 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_TSO_IOCB; | |
2042 | mac_iocb_ptr->flags3 |= OB_MAC_TSO_IOCB_IC; | |
2043 | mac_iocb_ptr->frame_len = cpu_to_le32((u32) skb->len); | |
2044 | mac_iocb_ptr->total_hdrs_len = | |
2045 | cpu_to_le16(skb_transport_offset(skb) + tcp_hdrlen(skb)); | |
2046 | mac_iocb_ptr->net_trans_offset = | |
2047 | cpu_to_le16(skb_network_offset(skb) | | |
2048 | skb_transport_offset(skb) | |
2049 | << OB_MAC_TRANSPORT_HDR_SHIFT); | |
2050 | mac_iocb_ptr->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
2051 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_LSO; | |
2052 | if (likely(skb->protocol == htons(ETH_P_IP))) { | |
2053 | struct iphdr *iph = ip_hdr(skb); | |
2054 | iph->check = 0; | |
2055 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP4; | |
2056 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
2057 | iph->daddr, 0, | |
2058 | IPPROTO_TCP, | |
2059 | 0); | |
2060 | } else if (skb->protocol == htons(ETH_P_IPV6)) { | |
2061 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP6; | |
2062 | tcp_hdr(skb)->check = | |
2063 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
2064 | &ipv6_hdr(skb)->daddr, | |
2065 | 0, IPPROTO_TCP, 0); | |
2066 | } | |
2067 | return 1; | |
2068 | } | |
2069 | return 0; | |
2070 | } | |
2071 | ||
2072 | static void ql_hw_csum_setup(struct sk_buff *skb, | |
2073 | struct ob_mac_tso_iocb_req *mac_iocb_ptr) | |
2074 | { | |
2075 | int len; | |
2076 | struct iphdr *iph = ip_hdr(skb); | |
fd2df4f7 | 2077 | __sum16 *check; |
c4e84bde RM |
2078 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_TSO_IOCB; |
2079 | mac_iocb_ptr->frame_len = cpu_to_le32((u32) skb->len); | |
2080 | mac_iocb_ptr->net_trans_offset = | |
2081 | cpu_to_le16(skb_network_offset(skb) | | |
2082 | skb_transport_offset(skb) << OB_MAC_TRANSPORT_HDR_SHIFT); | |
2083 | ||
2084 | mac_iocb_ptr->flags1 |= OB_MAC_TSO_IOCB_IP4; | |
2085 | len = (ntohs(iph->tot_len) - (iph->ihl << 2)); | |
2086 | if (likely(iph->protocol == IPPROTO_TCP)) { | |
2087 | check = &(tcp_hdr(skb)->check); | |
2088 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_TC; | |
2089 | mac_iocb_ptr->total_hdrs_len = | |
2090 | cpu_to_le16(skb_transport_offset(skb) + | |
2091 | (tcp_hdr(skb)->doff << 2)); | |
2092 | } else { | |
2093 | check = &(udp_hdr(skb)->check); | |
2094 | mac_iocb_ptr->flags2 |= OB_MAC_TSO_IOCB_UC; | |
2095 | mac_iocb_ptr->total_hdrs_len = | |
2096 | cpu_to_le16(skb_transport_offset(skb) + | |
2097 | sizeof(struct udphdr)); | |
2098 | } | |
2099 | *check = ~csum_tcpudp_magic(iph->saddr, | |
2100 | iph->daddr, len, iph->protocol, 0); | |
2101 | } | |
2102 | ||
61357325 | 2103 | static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev) |
c4e84bde RM |
2104 | { |
2105 | struct tx_ring_desc *tx_ring_desc; | |
2106 | struct ob_mac_iocb_req *mac_iocb_ptr; | |
2107 | struct ql_adapter *qdev = netdev_priv(ndev); | |
2108 | int tso; | |
2109 | struct tx_ring *tx_ring; | |
1e213303 | 2110 | u32 tx_ring_idx = (u32) skb->queue_mapping; |
c4e84bde RM |
2111 | |
2112 | tx_ring = &qdev->tx_ring[tx_ring_idx]; | |
2113 | ||
74c50b4b RM |
2114 | if (skb_padto(skb, ETH_ZLEN)) |
2115 | return NETDEV_TX_OK; | |
2116 | ||
c4e84bde RM |
2117 | if (unlikely(atomic_read(&tx_ring->tx_count) < 2)) { |
2118 | QPRINTK(qdev, TX_QUEUED, INFO, | |
2119 | "%s: shutting down tx queue %d du to lack of resources.\n", | |
2120 | __func__, tx_ring_idx); | |
1e213303 | 2121 | netif_stop_subqueue(ndev, tx_ring->wq_id); |
c4e84bde RM |
2122 | atomic_inc(&tx_ring->queue_stopped); |
2123 | return NETDEV_TX_BUSY; | |
2124 | } | |
2125 | tx_ring_desc = &tx_ring->q[tx_ring->prod_idx]; | |
2126 | mac_iocb_ptr = tx_ring_desc->queue_entry; | |
e332471c | 2127 | memset((void *)mac_iocb_ptr, 0, sizeof(*mac_iocb_ptr)); |
c4e84bde RM |
2128 | |
2129 | mac_iocb_ptr->opcode = OPCODE_OB_MAC_IOCB; | |
2130 | mac_iocb_ptr->tid = tx_ring_desc->index; | |
2131 | /* We use the upper 32-bits to store the tx queue for this IO. | |
2132 | * When we get the completion we can use it to establish the context. | |
2133 | */ | |
2134 | mac_iocb_ptr->txq_idx = tx_ring_idx; | |
2135 | tx_ring_desc->skb = skb; | |
2136 | ||
2137 | mac_iocb_ptr->frame_len = cpu_to_le16((u16) skb->len); | |
2138 | ||
2139 | if (qdev->vlgrp && vlan_tx_tag_present(skb)) { | |
2140 | QPRINTK(qdev, TX_QUEUED, DEBUG, "Adding a vlan tag %d.\n", | |
2141 | vlan_tx_tag_get(skb)); | |
2142 | mac_iocb_ptr->flags3 |= OB_MAC_IOCB_V; | |
2143 | mac_iocb_ptr->vlan_tci = cpu_to_le16(vlan_tx_tag_get(skb)); | |
2144 | } | |
2145 | tso = ql_tso(skb, (struct ob_mac_tso_iocb_req *)mac_iocb_ptr); | |
2146 | if (tso < 0) { | |
2147 | dev_kfree_skb_any(skb); | |
2148 | return NETDEV_TX_OK; | |
2149 | } else if (unlikely(!tso) && (skb->ip_summed == CHECKSUM_PARTIAL)) { | |
2150 | ql_hw_csum_setup(skb, | |
2151 | (struct ob_mac_tso_iocb_req *)mac_iocb_ptr); | |
2152 | } | |
0d979f74 RM |
2153 | if (ql_map_send(qdev, mac_iocb_ptr, skb, tx_ring_desc) != |
2154 | NETDEV_TX_OK) { | |
2155 | QPRINTK(qdev, TX_QUEUED, ERR, | |
2156 | "Could not map the segments.\n"); | |
2157 | return NETDEV_TX_BUSY; | |
2158 | } | |
c4e84bde RM |
2159 | QL_DUMP_OB_MAC_IOCB(mac_iocb_ptr); |
2160 | tx_ring->prod_idx++; | |
2161 | if (tx_ring->prod_idx == tx_ring->wq_len) | |
2162 | tx_ring->prod_idx = 0; | |
2163 | wmb(); | |
2164 | ||
2165 | ql_write_db_reg(tx_ring->prod_idx, tx_ring->prod_idx_db_reg); | |
c4e84bde RM |
2166 | QPRINTK(qdev, TX_QUEUED, DEBUG, "tx queued, slot %d, len %d\n", |
2167 | tx_ring->prod_idx, skb->len); | |
2168 | ||
2169 | atomic_dec(&tx_ring->tx_count); | |
2170 | return NETDEV_TX_OK; | |
2171 | } | |
2172 | ||
2173 | static void ql_free_shadow_space(struct ql_adapter *qdev) | |
2174 | { | |
2175 | if (qdev->rx_ring_shadow_reg_area) { | |
2176 | pci_free_consistent(qdev->pdev, | |
2177 | PAGE_SIZE, | |
2178 | qdev->rx_ring_shadow_reg_area, | |
2179 | qdev->rx_ring_shadow_reg_dma); | |
2180 | qdev->rx_ring_shadow_reg_area = NULL; | |
2181 | } | |
2182 | if (qdev->tx_ring_shadow_reg_area) { | |
2183 | pci_free_consistent(qdev->pdev, | |
2184 | PAGE_SIZE, | |
2185 | qdev->tx_ring_shadow_reg_area, | |
2186 | qdev->tx_ring_shadow_reg_dma); | |
2187 | qdev->tx_ring_shadow_reg_area = NULL; | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | static int ql_alloc_shadow_space(struct ql_adapter *qdev) | |
2192 | { | |
2193 | qdev->rx_ring_shadow_reg_area = | |
2194 | pci_alloc_consistent(qdev->pdev, | |
2195 | PAGE_SIZE, &qdev->rx_ring_shadow_reg_dma); | |
2196 | if (qdev->rx_ring_shadow_reg_area == NULL) { | |
2197 | QPRINTK(qdev, IFUP, ERR, | |
2198 | "Allocation of RX shadow space failed.\n"); | |
2199 | return -ENOMEM; | |
2200 | } | |
b25215d0 | 2201 | memset(qdev->rx_ring_shadow_reg_area, 0, PAGE_SIZE); |
c4e84bde RM |
2202 | qdev->tx_ring_shadow_reg_area = |
2203 | pci_alloc_consistent(qdev->pdev, PAGE_SIZE, | |
2204 | &qdev->tx_ring_shadow_reg_dma); | |
2205 | if (qdev->tx_ring_shadow_reg_area == NULL) { | |
2206 | QPRINTK(qdev, IFUP, ERR, | |
2207 | "Allocation of TX shadow space failed.\n"); | |
2208 | goto err_wqp_sh_area; | |
2209 | } | |
b25215d0 | 2210 | memset(qdev->tx_ring_shadow_reg_area, 0, PAGE_SIZE); |
c4e84bde RM |
2211 | return 0; |
2212 | ||
2213 | err_wqp_sh_area: | |
2214 | pci_free_consistent(qdev->pdev, | |
2215 | PAGE_SIZE, | |
2216 | qdev->rx_ring_shadow_reg_area, | |
2217 | qdev->rx_ring_shadow_reg_dma); | |
2218 | return -ENOMEM; | |
2219 | } | |
2220 | ||
2221 | static void ql_init_tx_ring(struct ql_adapter *qdev, struct tx_ring *tx_ring) | |
2222 | { | |
2223 | struct tx_ring_desc *tx_ring_desc; | |
2224 | int i; | |
2225 | struct ob_mac_iocb_req *mac_iocb_ptr; | |
2226 | ||
2227 | mac_iocb_ptr = tx_ring->wq_base; | |
2228 | tx_ring_desc = tx_ring->q; | |
2229 | for (i = 0; i < tx_ring->wq_len; i++) { | |
2230 | tx_ring_desc->index = i; | |
2231 | tx_ring_desc->skb = NULL; | |
2232 | tx_ring_desc->queue_entry = mac_iocb_ptr; | |
2233 | mac_iocb_ptr++; | |
2234 | tx_ring_desc++; | |
2235 | } | |
2236 | atomic_set(&tx_ring->tx_count, tx_ring->wq_len); | |
2237 | atomic_set(&tx_ring->queue_stopped, 0); | |
2238 | } | |
2239 | ||
2240 | static void ql_free_tx_resources(struct ql_adapter *qdev, | |
2241 | struct tx_ring *tx_ring) | |
2242 | { | |
2243 | if (tx_ring->wq_base) { | |
2244 | pci_free_consistent(qdev->pdev, tx_ring->wq_size, | |
2245 | tx_ring->wq_base, tx_ring->wq_base_dma); | |
2246 | tx_ring->wq_base = NULL; | |
2247 | } | |
2248 | kfree(tx_ring->q); | |
2249 | tx_ring->q = NULL; | |
2250 | } | |
2251 | ||
2252 | static int ql_alloc_tx_resources(struct ql_adapter *qdev, | |
2253 | struct tx_ring *tx_ring) | |
2254 | { | |
2255 | tx_ring->wq_base = | |
2256 | pci_alloc_consistent(qdev->pdev, tx_ring->wq_size, | |
2257 | &tx_ring->wq_base_dma); | |
2258 | ||
2259 | if ((tx_ring->wq_base == NULL) | |
88c55e3c | 2260 | || tx_ring->wq_base_dma & WQ_ADDR_ALIGN) { |
c4e84bde RM |
2261 | QPRINTK(qdev, IFUP, ERR, "tx_ring alloc failed.\n"); |
2262 | return -ENOMEM; | |
2263 | } | |
2264 | tx_ring->q = | |
2265 | kmalloc(tx_ring->wq_len * sizeof(struct tx_ring_desc), GFP_KERNEL); | |
2266 | if (tx_ring->q == NULL) | |
2267 | goto err; | |
2268 | ||
2269 | return 0; | |
2270 | err: | |
2271 | pci_free_consistent(qdev->pdev, tx_ring->wq_size, | |
2272 | tx_ring->wq_base, tx_ring->wq_base_dma); | |
2273 | return -ENOMEM; | |
2274 | } | |
2275 | ||
8668ae92 | 2276 | static void ql_free_lbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring) |
c4e84bde RM |
2277 | { |
2278 | int i; | |
2279 | struct bq_desc *lbq_desc; | |
2280 | ||
2281 | for (i = 0; i < rx_ring->lbq_len; i++) { | |
2282 | lbq_desc = &rx_ring->lbq[i]; | |
2283 | if (lbq_desc->p.lbq_page) { | |
2284 | pci_unmap_page(qdev->pdev, | |
2285 | pci_unmap_addr(lbq_desc, mapaddr), | |
2286 | pci_unmap_len(lbq_desc, maplen), | |
2287 | PCI_DMA_FROMDEVICE); | |
2288 | ||
2289 | put_page(lbq_desc->p.lbq_page); | |
2290 | lbq_desc->p.lbq_page = NULL; | |
2291 | } | |
c4e84bde RM |
2292 | } |
2293 | } | |
2294 | ||
8668ae92 | 2295 | static void ql_free_sbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring) |
c4e84bde RM |
2296 | { |
2297 | int i; | |
2298 | struct bq_desc *sbq_desc; | |
2299 | ||
2300 | for (i = 0; i < rx_ring->sbq_len; i++) { | |
2301 | sbq_desc = &rx_ring->sbq[i]; | |
2302 | if (sbq_desc == NULL) { | |
2303 | QPRINTK(qdev, IFUP, ERR, "sbq_desc %d is NULL.\n", i); | |
2304 | return; | |
2305 | } | |
2306 | if (sbq_desc->p.skb) { | |
2307 | pci_unmap_single(qdev->pdev, | |
2308 | pci_unmap_addr(sbq_desc, mapaddr), | |
2309 | pci_unmap_len(sbq_desc, maplen), | |
2310 | PCI_DMA_FROMDEVICE); | |
2311 | dev_kfree_skb(sbq_desc->p.skb); | |
2312 | sbq_desc->p.skb = NULL; | |
2313 | } | |
c4e84bde RM |
2314 | } |
2315 | } | |
2316 | ||
4545a3f2 RM |
2317 | /* Free all large and small rx buffers associated |
2318 | * with the completion queues for this device. | |
2319 | */ | |
2320 | static void ql_free_rx_buffers(struct ql_adapter *qdev) | |
2321 | { | |
2322 | int i; | |
2323 | struct rx_ring *rx_ring; | |
2324 | ||
2325 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2326 | rx_ring = &qdev->rx_ring[i]; | |
2327 | if (rx_ring->lbq) | |
2328 | ql_free_lbq_buffers(qdev, rx_ring); | |
2329 | if (rx_ring->sbq) | |
2330 | ql_free_sbq_buffers(qdev, rx_ring); | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | static void ql_alloc_rx_buffers(struct ql_adapter *qdev) | |
2335 | { | |
2336 | struct rx_ring *rx_ring; | |
2337 | int i; | |
2338 | ||
2339 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2340 | rx_ring = &qdev->rx_ring[i]; | |
2341 | if (rx_ring->type != TX_Q) | |
2342 | ql_update_buffer_queues(qdev, rx_ring); | |
2343 | } | |
2344 | } | |
2345 | ||
2346 | static void ql_init_lbq_ring(struct ql_adapter *qdev, | |
2347 | struct rx_ring *rx_ring) | |
2348 | { | |
2349 | int i; | |
2350 | struct bq_desc *lbq_desc; | |
2351 | __le64 *bq = rx_ring->lbq_base; | |
2352 | ||
2353 | memset(rx_ring->lbq, 0, rx_ring->lbq_len * sizeof(struct bq_desc)); | |
2354 | for (i = 0; i < rx_ring->lbq_len; i++) { | |
2355 | lbq_desc = &rx_ring->lbq[i]; | |
2356 | memset(lbq_desc, 0, sizeof(*lbq_desc)); | |
2357 | lbq_desc->index = i; | |
2358 | lbq_desc->addr = bq; | |
2359 | bq++; | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | static void ql_init_sbq_ring(struct ql_adapter *qdev, | |
c4e84bde RM |
2364 | struct rx_ring *rx_ring) |
2365 | { | |
2366 | int i; | |
2367 | struct bq_desc *sbq_desc; | |
2c9a0d41 | 2368 | __le64 *bq = rx_ring->sbq_base; |
c4e84bde | 2369 | |
4545a3f2 | 2370 | memset(rx_ring->sbq, 0, rx_ring->sbq_len * sizeof(struct bq_desc)); |
c4e84bde RM |
2371 | for (i = 0; i < rx_ring->sbq_len; i++) { |
2372 | sbq_desc = &rx_ring->sbq[i]; | |
4545a3f2 | 2373 | memset(sbq_desc, 0, sizeof(*sbq_desc)); |
c4e84bde | 2374 | sbq_desc->index = i; |
2c9a0d41 | 2375 | sbq_desc->addr = bq; |
c4e84bde RM |
2376 | bq++; |
2377 | } | |
c4e84bde RM |
2378 | } |
2379 | ||
2380 | static void ql_free_rx_resources(struct ql_adapter *qdev, | |
2381 | struct rx_ring *rx_ring) | |
2382 | { | |
c4e84bde RM |
2383 | /* Free the small buffer queue. */ |
2384 | if (rx_ring->sbq_base) { | |
2385 | pci_free_consistent(qdev->pdev, | |
2386 | rx_ring->sbq_size, | |
2387 | rx_ring->sbq_base, rx_ring->sbq_base_dma); | |
2388 | rx_ring->sbq_base = NULL; | |
2389 | } | |
2390 | ||
2391 | /* Free the small buffer queue control blocks. */ | |
2392 | kfree(rx_ring->sbq); | |
2393 | rx_ring->sbq = NULL; | |
2394 | ||
2395 | /* Free the large buffer queue. */ | |
2396 | if (rx_ring->lbq_base) { | |
2397 | pci_free_consistent(qdev->pdev, | |
2398 | rx_ring->lbq_size, | |
2399 | rx_ring->lbq_base, rx_ring->lbq_base_dma); | |
2400 | rx_ring->lbq_base = NULL; | |
2401 | } | |
2402 | ||
2403 | /* Free the large buffer queue control blocks. */ | |
2404 | kfree(rx_ring->lbq); | |
2405 | rx_ring->lbq = NULL; | |
2406 | ||
2407 | /* Free the rx queue. */ | |
2408 | if (rx_ring->cq_base) { | |
2409 | pci_free_consistent(qdev->pdev, | |
2410 | rx_ring->cq_size, | |
2411 | rx_ring->cq_base, rx_ring->cq_base_dma); | |
2412 | rx_ring->cq_base = NULL; | |
2413 | } | |
2414 | } | |
2415 | ||
2416 | /* Allocate queues and buffers for this completions queue based | |
2417 | * on the values in the parameter structure. */ | |
2418 | static int ql_alloc_rx_resources(struct ql_adapter *qdev, | |
2419 | struct rx_ring *rx_ring) | |
2420 | { | |
2421 | ||
2422 | /* | |
2423 | * Allocate the completion queue for this rx_ring. | |
2424 | */ | |
2425 | rx_ring->cq_base = | |
2426 | pci_alloc_consistent(qdev->pdev, rx_ring->cq_size, | |
2427 | &rx_ring->cq_base_dma); | |
2428 | ||
2429 | if (rx_ring->cq_base == NULL) { | |
2430 | QPRINTK(qdev, IFUP, ERR, "rx_ring alloc failed.\n"); | |
2431 | return -ENOMEM; | |
2432 | } | |
2433 | ||
2434 | if (rx_ring->sbq_len) { | |
2435 | /* | |
2436 | * Allocate small buffer queue. | |
2437 | */ | |
2438 | rx_ring->sbq_base = | |
2439 | pci_alloc_consistent(qdev->pdev, rx_ring->sbq_size, | |
2440 | &rx_ring->sbq_base_dma); | |
2441 | ||
2442 | if (rx_ring->sbq_base == NULL) { | |
2443 | QPRINTK(qdev, IFUP, ERR, | |
2444 | "Small buffer queue allocation failed.\n"); | |
2445 | goto err_mem; | |
2446 | } | |
2447 | ||
2448 | /* | |
2449 | * Allocate small buffer queue control blocks. | |
2450 | */ | |
2451 | rx_ring->sbq = | |
2452 | kmalloc(rx_ring->sbq_len * sizeof(struct bq_desc), | |
2453 | GFP_KERNEL); | |
2454 | if (rx_ring->sbq == NULL) { | |
2455 | QPRINTK(qdev, IFUP, ERR, | |
2456 | "Small buffer queue control block allocation failed.\n"); | |
2457 | goto err_mem; | |
2458 | } | |
2459 | ||
4545a3f2 | 2460 | ql_init_sbq_ring(qdev, rx_ring); |
c4e84bde RM |
2461 | } |
2462 | ||
2463 | if (rx_ring->lbq_len) { | |
2464 | /* | |
2465 | * Allocate large buffer queue. | |
2466 | */ | |
2467 | rx_ring->lbq_base = | |
2468 | pci_alloc_consistent(qdev->pdev, rx_ring->lbq_size, | |
2469 | &rx_ring->lbq_base_dma); | |
2470 | ||
2471 | if (rx_ring->lbq_base == NULL) { | |
2472 | QPRINTK(qdev, IFUP, ERR, | |
2473 | "Large buffer queue allocation failed.\n"); | |
2474 | goto err_mem; | |
2475 | } | |
2476 | /* | |
2477 | * Allocate large buffer queue control blocks. | |
2478 | */ | |
2479 | rx_ring->lbq = | |
2480 | kmalloc(rx_ring->lbq_len * sizeof(struct bq_desc), | |
2481 | GFP_KERNEL); | |
2482 | if (rx_ring->lbq == NULL) { | |
2483 | QPRINTK(qdev, IFUP, ERR, | |
2484 | "Large buffer queue control block allocation failed.\n"); | |
2485 | goto err_mem; | |
2486 | } | |
2487 | ||
4545a3f2 | 2488 | ql_init_lbq_ring(qdev, rx_ring); |
c4e84bde RM |
2489 | } |
2490 | ||
2491 | return 0; | |
2492 | ||
2493 | err_mem: | |
2494 | ql_free_rx_resources(qdev, rx_ring); | |
2495 | return -ENOMEM; | |
2496 | } | |
2497 | ||
2498 | static void ql_tx_ring_clean(struct ql_adapter *qdev) | |
2499 | { | |
2500 | struct tx_ring *tx_ring; | |
2501 | struct tx_ring_desc *tx_ring_desc; | |
2502 | int i, j; | |
2503 | ||
2504 | /* | |
2505 | * Loop through all queues and free | |
2506 | * any resources. | |
2507 | */ | |
2508 | for (j = 0; j < qdev->tx_ring_count; j++) { | |
2509 | tx_ring = &qdev->tx_ring[j]; | |
2510 | for (i = 0; i < tx_ring->wq_len; i++) { | |
2511 | tx_ring_desc = &tx_ring->q[i]; | |
2512 | if (tx_ring_desc && tx_ring_desc->skb) { | |
2513 | QPRINTK(qdev, IFDOWN, ERR, | |
2514 | "Freeing lost SKB %p, from queue %d, index %d.\n", | |
2515 | tx_ring_desc->skb, j, | |
2516 | tx_ring_desc->index); | |
2517 | ql_unmap_send(qdev, tx_ring_desc, | |
2518 | tx_ring_desc->map_cnt); | |
2519 | dev_kfree_skb(tx_ring_desc->skb); | |
2520 | tx_ring_desc->skb = NULL; | |
2521 | } | |
2522 | } | |
2523 | } | |
2524 | } | |
2525 | ||
c4e84bde RM |
2526 | static void ql_free_mem_resources(struct ql_adapter *qdev) |
2527 | { | |
2528 | int i; | |
2529 | ||
2530 | for (i = 0; i < qdev->tx_ring_count; i++) | |
2531 | ql_free_tx_resources(qdev, &qdev->tx_ring[i]); | |
2532 | for (i = 0; i < qdev->rx_ring_count; i++) | |
2533 | ql_free_rx_resources(qdev, &qdev->rx_ring[i]); | |
2534 | ql_free_shadow_space(qdev); | |
2535 | } | |
2536 | ||
2537 | static int ql_alloc_mem_resources(struct ql_adapter *qdev) | |
2538 | { | |
2539 | int i; | |
2540 | ||
2541 | /* Allocate space for our shadow registers and such. */ | |
2542 | if (ql_alloc_shadow_space(qdev)) | |
2543 | return -ENOMEM; | |
2544 | ||
2545 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
2546 | if (ql_alloc_rx_resources(qdev, &qdev->rx_ring[i]) != 0) { | |
2547 | QPRINTK(qdev, IFUP, ERR, | |
2548 | "RX resource allocation failed.\n"); | |
2549 | goto err_mem; | |
2550 | } | |
2551 | } | |
2552 | /* Allocate tx queue resources */ | |
2553 | for (i = 0; i < qdev->tx_ring_count; i++) { | |
2554 | if (ql_alloc_tx_resources(qdev, &qdev->tx_ring[i]) != 0) { | |
2555 | QPRINTK(qdev, IFUP, ERR, | |
2556 | "TX resource allocation failed.\n"); | |
2557 | goto err_mem; | |
2558 | } | |
2559 | } | |
2560 | return 0; | |
2561 | ||
2562 | err_mem: | |
2563 | ql_free_mem_resources(qdev); | |
2564 | return -ENOMEM; | |
2565 | } | |
2566 | ||
2567 | /* Set up the rx ring control block and pass it to the chip. | |
2568 | * The control block is defined as | |
2569 | * "Completion Queue Initialization Control Block", or cqicb. | |
2570 | */ | |
2571 | static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring) | |
2572 | { | |
2573 | struct cqicb *cqicb = &rx_ring->cqicb; | |
2574 | void *shadow_reg = qdev->rx_ring_shadow_reg_area + | |
b8facca0 | 2575 | (rx_ring->cq_id * RX_RING_SHADOW_SPACE); |
c4e84bde | 2576 | u64 shadow_reg_dma = qdev->rx_ring_shadow_reg_dma + |
b8facca0 | 2577 | (rx_ring->cq_id * RX_RING_SHADOW_SPACE); |
c4e84bde RM |
2578 | void __iomem *doorbell_area = |
2579 | qdev->doorbell_area + (DB_PAGE_SIZE * (128 + rx_ring->cq_id)); | |
2580 | int err = 0; | |
2581 | u16 bq_len; | |
d4a4aba6 | 2582 | u64 tmp; |
b8facca0 RM |
2583 | __le64 *base_indirect_ptr; |
2584 | int page_entries; | |
c4e84bde RM |
2585 | |
2586 | /* Set up the shadow registers for this ring. */ | |
2587 | rx_ring->prod_idx_sh_reg = shadow_reg; | |
2588 | rx_ring->prod_idx_sh_reg_dma = shadow_reg_dma; | |
2589 | shadow_reg += sizeof(u64); | |
2590 | shadow_reg_dma += sizeof(u64); | |
2591 | rx_ring->lbq_base_indirect = shadow_reg; | |
2592 | rx_ring->lbq_base_indirect_dma = shadow_reg_dma; | |
b8facca0 RM |
2593 | shadow_reg += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); |
2594 | shadow_reg_dma += (sizeof(u64) * MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); | |
c4e84bde RM |
2595 | rx_ring->sbq_base_indirect = shadow_reg; |
2596 | rx_ring->sbq_base_indirect_dma = shadow_reg_dma; | |
2597 | ||
2598 | /* PCI doorbell mem area + 0x00 for consumer index register */ | |
8668ae92 | 2599 | rx_ring->cnsmr_idx_db_reg = (u32 __iomem *) doorbell_area; |
c4e84bde RM |
2600 | rx_ring->cnsmr_idx = 0; |
2601 | rx_ring->curr_entry = rx_ring->cq_base; | |
2602 | ||
2603 | /* PCI doorbell mem area + 0x04 for valid register */ | |
2604 | rx_ring->valid_db_reg = doorbell_area + 0x04; | |
2605 | ||
2606 | /* PCI doorbell mem area + 0x18 for large buffer consumer */ | |
8668ae92 | 2607 | rx_ring->lbq_prod_idx_db_reg = (u32 __iomem *) (doorbell_area + 0x18); |
c4e84bde RM |
2608 | |
2609 | /* PCI doorbell mem area + 0x1c */ | |
8668ae92 | 2610 | rx_ring->sbq_prod_idx_db_reg = (u32 __iomem *) (doorbell_area + 0x1c); |
c4e84bde RM |
2611 | |
2612 | memset((void *)cqicb, 0, sizeof(struct cqicb)); | |
2613 | cqicb->msix_vect = rx_ring->irq; | |
2614 | ||
459caf5a RM |
2615 | bq_len = (rx_ring->cq_len == 65536) ? 0 : (u16) rx_ring->cq_len; |
2616 | cqicb->len = cpu_to_le16(bq_len | LEN_V | LEN_CPP_CONT); | |
c4e84bde | 2617 | |
97345524 | 2618 | cqicb->addr = cpu_to_le64(rx_ring->cq_base_dma); |
c4e84bde | 2619 | |
97345524 | 2620 | cqicb->prod_idx_addr = cpu_to_le64(rx_ring->prod_idx_sh_reg_dma); |
c4e84bde RM |
2621 | |
2622 | /* | |
2623 | * Set up the control block load flags. | |
2624 | */ | |
2625 | cqicb->flags = FLAGS_LC | /* Load queue base address */ | |
2626 | FLAGS_LV | /* Load MSI-X vector */ | |
2627 | FLAGS_LI; /* Load irq delay values */ | |
2628 | if (rx_ring->lbq_len) { | |
2629 | cqicb->flags |= FLAGS_LL; /* Load lbq values */ | |
a419aef8 | 2630 | tmp = (u64)rx_ring->lbq_base_dma; |
b8facca0 RM |
2631 | base_indirect_ptr = (__le64 *) rx_ring->lbq_base_indirect; |
2632 | page_entries = 0; | |
2633 | do { | |
2634 | *base_indirect_ptr = cpu_to_le64(tmp); | |
2635 | tmp += DB_PAGE_SIZE; | |
2636 | base_indirect_ptr++; | |
2637 | page_entries++; | |
2638 | } while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->lbq_len)); | |
97345524 RM |
2639 | cqicb->lbq_addr = |
2640 | cpu_to_le64(rx_ring->lbq_base_indirect_dma); | |
459caf5a RM |
2641 | bq_len = (rx_ring->lbq_buf_size == 65536) ? 0 : |
2642 | (u16) rx_ring->lbq_buf_size; | |
2643 | cqicb->lbq_buf_size = cpu_to_le16(bq_len); | |
2644 | bq_len = (rx_ring->lbq_len == 65536) ? 0 : | |
2645 | (u16) rx_ring->lbq_len; | |
c4e84bde | 2646 | cqicb->lbq_len = cpu_to_le16(bq_len); |
4545a3f2 | 2647 | rx_ring->lbq_prod_idx = 0; |
c4e84bde | 2648 | rx_ring->lbq_curr_idx = 0; |
4545a3f2 RM |
2649 | rx_ring->lbq_clean_idx = 0; |
2650 | rx_ring->lbq_free_cnt = rx_ring->lbq_len; | |
c4e84bde RM |
2651 | } |
2652 | if (rx_ring->sbq_len) { | |
2653 | cqicb->flags |= FLAGS_LS; /* Load sbq values */ | |
a419aef8 | 2654 | tmp = (u64)rx_ring->sbq_base_dma; |
b8facca0 RM |
2655 | base_indirect_ptr = (__le64 *) rx_ring->sbq_base_indirect; |
2656 | page_entries = 0; | |
2657 | do { | |
2658 | *base_indirect_ptr = cpu_to_le64(tmp); | |
2659 | tmp += DB_PAGE_SIZE; | |
2660 | base_indirect_ptr++; | |
2661 | page_entries++; | |
2662 | } while (page_entries < MAX_DB_PAGES_PER_BQ(rx_ring->sbq_len)); | |
97345524 RM |
2663 | cqicb->sbq_addr = |
2664 | cpu_to_le64(rx_ring->sbq_base_indirect_dma); | |
c4e84bde | 2665 | cqicb->sbq_buf_size = |
d4a4aba6 | 2666 | cpu_to_le16((u16)(rx_ring->sbq_buf_size/2)); |
459caf5a RM |
2667 | bq_len = (rx_ring->sbq_len == 65536) ? 0 : |
2668 | (u16) rx_ring->sbq_len; | |
c4e84bde | 2669 | cqicb->sbq_len = cpu_to_le16(bq_len); |
4545a3f2 | 2670 | rx_ring->sbq_prod_idx = 0; |
c4e84bde | 2671 | rx_ring->sbq_curr_idx = 0; |
4545a3f2 RM |
2672 | rx_ring->sbq_clean_idx = 0; |
2673 | rx_ring->sbq_free_cnt = rx_ring->sbq_len; | |
c4e84bde RM |
2674 | } |
2675 | switch (rx_ring->type) { | |
2676 | case TX_Q: | |
c4e84bde RM |
2677 | cqicb->irq_delay = cpu_to_le16(qdev->tx_coalesce_usecs); |
2678 | cqicb->pkt_delay = cpu_to_le16(qdev->tx_max_coalesced_frames); | |
2679 | break; | |
c4e84bde RM |
2680 | case RX_Q: |
2681 | /* Inbound completion handling rx_rings run in | |
2682 | * separate NAPI contexts. | |
2683 | */ | |
2684 | netif_napi_add(qdev->ndev, &rx_ring->napi, ql_napi_poll_msix, | |
2685 | 64); | |
2686 | cqicb->irq_delay = cpu_to_le16(qdev->rx_coalesce_usecs); | |
2687 | cqicb->pkt_delay = cpu_to_le16(qdev->rx_max_coalesced_frames); | |
2688 | break; | |
2689 | default: | |
2690 | QPRINTK(qdev, IFUP, DEBUG, "Invalid rx_ring->type = %d.\n", | |
2691 | rx_ring->type); | |
2692 | } | |
4974097a | 2693 | QPRINTK(qdev, IFUP, DEBUG, "Initializing rx work queue.\n"); |
c4e84bde RM |
2694 | err = ql_write_cfg(qdev, cqicb, sizeof(struct cqicb), |
2695 | CFG_LCQ, rx_ring->cq_id); | |
2696 | if (err) { | |
2697 | QPRINTK(qdev, IFUP, ERR, "Failed to load CQICB.\n"); | |
2698 | return err; | |
2699 | } | |
c4e84bde RM |
2700 | return err; |
2701 | } | |
2702 | ||
2703 | static int ql_start_tx_ring(struct ql_adapter *qdev, struct tx_ring *tx_ring) | |
2704 | { | |
2705 | struct wqicb *wqicb = (struct wqicb *)tx_ring; | |
2706 | void __iomem *doorbell_area = | |
2707 | qdev->doorbell_area + (DB_PAGE_SIZE * tx_ring->wq_id); | |
2708 | void *shadow_reg = qdev->tx_ring_shadow_reg_area + | |
2709 | (tx_ring->wq_id * sizeof(u64)); | |
2710 | u64 shadow_reg_dma = qdev->tx_ring_shadow_reg_dma + | |
2711 | (tx_ring->wq_id * sizeof(u64)); | |
2712 | int err = 0; | |
2713 | ||
2714 | /* | |
2715 | * Assign doorbell registers for this tx_ring. | |
2716 | */ | |
2717 | /* TX PCI doorbell mem area for tx producer index */ | |
8668ae92 | 2718 | tx_ring->prod_idx_db_reg = (u32 __iomem *) doorbell_area; |
c4e84bde RM |
2719 | tx_ring->prod_idx = 0; |
2720 | /* TX PCI doorbell mem area + 0x04 */ | |
2721 | tx_ring->valid_db_reg = doorbell_area + 0x04; | |
2722 | ||
2723 | /* | |
2724 | * Assign shadow registers for this tx_ring. | |
2725 | */ | |
2726 | tx_ring->cnsmr_idx_sh_reg = shadow_reg; | |
2727 | tx_ring->cnsmr_idx_sh_reg_dma = shadow_reg_dma; | |
2728 | ||
2729 | wqicb->len = cpu_to_le16(tx_ring->wq_len | Q_LEN_V | Q_LEN_CPP_CONT); | |
2730 | wqicb->flags = cpu_to_le16(Q_FLAGS_LC | | |
2731 | Q_FLAGS_LB | Q_FLAGS_LI | Q_FLAGS_LO); | |
2732 | wqicb->cq_id_rss = cpu_to_le16(tx_ring->cq_id); | |
2733 | wqicb->rid = 0; | |
97345524 | 2734 | wqicb->addr = cpu_to_le64(tx_ring->wq_base_dma); |
c4e84bde | 2735 | |
97345524 | 2736 | wqicb->cnsmr_idx_addr = cpu_to_le64(tx_ring->cnsmr_idx_sh_reg_dma); |
c4e84bde RM |
2737 | |
2738 | ql_init_tx_ring(qdev, tx_ring); | |
2739 | ||
e332471c | 2740 | err = ql_write_cfg(qdev, wqicb, sizeof(*wqicb), CFG_LRQ, |
c4e84bde RM |
2741 | (u16) tx_ring->wq_id); |
2742 | if (err) { | |
2743 | QPRINTK(qdev, IFUP, ERR, "Failed to load tx_ring.\n"); | |
2744 | return err; | |
2745 | } | |
4974097a | 2746 | QPRINTK(qdev, IFUP, DEBUG, "Successfully loaded WQICB.\n"); |
c4e84bde RM |
2747 | return err; |
2748 | } | |
2749 | ||
2750 | static void ql_disable_msix(struct ql_adapter *qdev) | |
2751 | { | |
2752 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
2753 | pci_disable_msix(qdev->pdev); | |
2754 | clear_bit(QL_MSIX_ENABLED, &qdev->flags); | |
2755 | kfree(qdev->msi_x_entry); | |
2756 | qdev->msi_x_entry = NULL; | |
2757 | } else if (test_bit(QL_MSI_ENABLED, &qdev->flags)) { | |
2758 | pci_disable_msi(qdev->pdev); | |
2759 | clear_bit(QL_MSI_ENABLED, &qdev->flags); | |
2760 | } | |
2761 | } | |
2762 | ||
a4ab6137 RM |
2763 | /* We start by trying to get the number of vectors |
2764 | * stored in qdev->intr_count. If we don't get that | |
2765 | * many then we reduce the count and try again. | |
2766 | */ | |
c4e84bde RM |
2767 | static void ql_enable_msix(struct ql_adapter *qdev) |
2768 | { | |
a4ab6137 | 2769 | int i, err; |
c4e84bde | 2770 | |
c4e84bde RM |
2771 | /* Get the MSIX vectors. */ |
2772 | if (irq_type == MSIX_IRQ) { | |
2773 | /* Try to alloc space for the msix struct, | |
2774 | * if it fails then go to MSI/legacy. | |
2775 | */ | |
a4ab6137 | 2776 | qdev->msi_x_entry = kcalloc(qdev->intr_count, |
c4e84bde RM |
2777 | sizeof(struct msix_entry), |
2778 | GFP_KERNEL); | |
2779 | if (!qdev->msi_x_entry) { | |
2780 | irq_type = MSI_IRQ; | |
2781 | goto msi; | |
2782 | } | |
2783 | ||
a4ab6137 | 2784 | for (i = 0; i < qdev->intr_count; i++) |
c4e84bde RM |
2785 | qdev->msi_x_entry[i].entry = i; |
2786 | ||
a4ab6137 RM |
2787 | /* Loop to get our vectors. We start with |
2788 | * what we want and settle for what we get. | |
2789 | */ | |
2790 | do { | |
2791 | err = pci_enable_msix(qdev->pdev, | |
2792 | qdev->msi_x_entry, qdev->intr_count); | |
2793 | if (err > 0) | |
2794 | qdev->intr_count = err; | |
2795 | } while (err > 0); | |
2796 | ||
2797 | if (err < 0) { | |
c4e84bde RM |
2798 | kfree(qdev->msi_x_entry); |
2799 | qdev->msi_x_entry = NULL; | |
2800 | QPRINTK(qdev, IFUP, WARNING, | |
2801 | "MSI-X Enable failed, trying MSI.\n"); | |
a4ab6137 | 2802 | qdev->intr_count = 1; |
c4e84bde | 2803 | irq_type = MSI_IRQ; |
a4ab6137 RM |
2804 | } else if (err == 0) { |
2805 | set_bit(QL_MSIX_ENABLED, &qdev->flags); | |
2806 | QPRINTK(qdev, IFUP, INFO, | |
2807 | "MSI-X Enabled, got %d vectors.\n", | |
2808 | qdev->intr_count); | |
2809 | return; | |
c4e84bde RM |
2810 | } |
2811 | } | |
2812 | msi: | |
a4ab6137 | 2813 | qdev->intr_count = 1; |
c4e84bde RM |
2814 | if (irq_type == MSI_IRQ) { |
2815 | if (!pci_enable_msi(qdev->pdev)) { | |
2816 | set_bit(QL_MSI_ENABLED, &qdev->flags); | |
2817 | QPRINTK(qdev, IFUP, INFO, | |
2818 | "Running with MSI interrupts.\n"); | |
2819 | return; | |
2820 | } | |
2821 | } | |
2822 | irq_type = LEG_IRQ; | |
c4e84bde RM |
2823 | QPRINTK(qdev, IFUP, DEBUG, "Running with legacy interrupts.\n"); |
2824 | } | |
2825 | ||
39aa8165 RM |
2826 | /* Each vector services 1 RSS ring and and 1 or more |
2827 | * TX completion rings. This function loops through | |
2828 | * the TX completion rings and assigns the vector that | |
2829 | * will service it. An example would be if there are | |
2830 | * 2 vectors (so 2 RSS rings) and 8 TX completion rings. | |
2831 | * This would mean that vector 0 would service RSS ring 0 | |
2832 | * and TX competion rings 0,1,2 and 3. Vector 1 would | |
2833 | * service RSS ring 1 and TX completion rings 4,5,6 and 7. | |
2834 | */ | |
2835 | static void ql_set_tx_vect(struct ql_adapter *qdev) | |
2836 | { | |
2837 | int i, j, vect; | |
2838 | u32 tx_rings_per_vector = qdev->tx_ring_count / qdev->intr_count; | |
2839 | ||
2840 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { | |
2841 | /* Assign irq vectors to TX rx_rings.*/ | |
2842 | for (vect = 0, j = 0, i = qdev->rss_ring_count; | |
2843 | i < qdev->rx_ring_count; i++) { | |
2844 | if (j == tx_rings_per_vector) { | |
2845 | vect++; | |
2846 | j = 0; | |
2847 | } | |
2848 | qdev->rx_ring[i].irq = vect; | |
2849 | j++; | |
2850 | } | |
2851 | } else { | |
2852 | /* For single vector all rings have an irq | |
2853 | * of zero. | |
2854 | */ | |
2855 | for (i = 0; i < qdev->rx_ring_count; i++) | |
2856 | qdev->rx_ring[i].irq = 0; | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | /* Set the interrupt mask for this vector. Each vector | |
2861 | * will service 1 RSS ring and 1 or more TX completion | |
2862 | * rings. This function sets up a bit mask per vector | |
2863 | * that indicates which rings it services. | |
2864 | */ | |
2865 | static void ql_set_irq_mask(struct ql_adapter *qdev, struct intr_context *ctx) | |
2866 | { | |
2867 | int j, vect = ctx->intr; | |
2868 | u32 tx_rings_per_vector = qdev->tx_ring_count / qdev->intr_count; | |
2869 | ||
2870 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { | |
2871 | /* Add the RSS ring serviced by this vector | |
2872 | * to the mask. | |
2873 | */ | |
2874 | ctx->irq_mask = (1 << qdev->rx_ring[vect].cq_id); | |
2875 | /* Add the TX ring(s) serviced by this vector | |
2876 | * to the mask. */ | |
2877 | for (j = 0; j < tx_rings_per_vector; j++) { | |
2878 | ctx->irq_mask |= | |
2879 | (1 << qdev->rx_ring[qdev->rss_ring_count + | |
2880 | (vect * tx_rings_per_vector) + j].cq_id); | |
2881 | } | |
2882 | } else { | |
2883 | /* For single vector we just shift each queue's | |
2884 | * ID into the mask. | |
2885 | */ | |
2886 | for (j = 0; j < qdev->rx_ring_count; j++) | |
2887 | ctx->irq_mask |= (1 << qdev->rx_ring[j].cq_id); | |
2888 | } | |
2889 | } | |
2890 | ||
c4e84bde RM |
2891 | /* |
2892 | * Here we build the intr_context structures based on | |
2893 | * our rx_ring count and intr vector count. | |
2894 | * The intr_context structure is used to hook each vector | |
2895 | * to possibly different handlers. | |
2896 | */ | |
2897 | static void ql_resolve_queues_to_irqs(struct ql_adapter *qdev) | |
2898 | { | |
2899 | int i = 0; | |
2900 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
2901 | ||
c4e84bde RM |
2902 | if (likely(test_bit(QL_MSIX_ENABLED, &qdev->flags))) { |
2903 | /* Each rx_ring has it's | |
2904 | * own intr_context since we have separate | |
2905 | * vectors for each queue. | |
c4e84bde RM |
2906 | */ |
2907 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
2908 | qdev->rx_ring[i].irq = i; | |
2909 | intr_context->intr = i; | |
2910 | intr_context->qdev = qdev; | |
39aa8165 RM |
2911 | /* Set up this vector's bit-mask that indicates |
2912 | * which queues it services. | |
2913 | */ | |
2914 | ql_set_irq_mask(qdev, intr_context); | |
c4e84bde RM |
2915 | /* |
2916 | * We set up each vectors enable/disable/read bits so | |
2917 | * there's no bit/mask calculations in the critical path. | |
2918 | */ | |
2919 | intr_context->intr_en_mask = | |
2920 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
2921 | INTR_EN_TYPE_ENABLE | INTR_EN_IHD_MASK | INTR_EN_IHD | |
2922 | | i; | |
2923 | intr_context->intr_dis_mask = | |
2924 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
2925 | INTR_EN_TYPE_DISABLE | INTR_EN_IHD_MASK | | |
2926 | INTR_EN_IHD | i; | |
2927 | intr_context->intr_read_mask = | |
2928 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
2929 | INTR_EN_TYPE_READ | INTR_EN_IHD_MASK | INTR_EN_IHD | | |
2930 | i; | |
39aa8165 RM |
2931 | if (i == 0) { |
2932 | /* The first vector/queue handles | |
2933 | * broadcast/multicast, fatal errors, | |
2934 | * and firmware events. This in addition | |
2935 | * to normal inbound NAPI processing. | |
c4e84bde | 2936 | */ |
39aa8165 | 2937 | intr_context->handler = qlge_isr; |
b2014ff8 RM |
2938 | sprintf(intr_context->name, "%s-rx-%d", |
2939 | qdev->ndev->name, i); | |
2940 | } else { | |
c4e84bde | 2941 | /* |
39aa8165 | 2942 | * Inbound queues handle unicast frames only. |
c4e84bde | 2943 | */ |
39aa8165 RM |
2944 | intr_context->handler = qlge_msix_rx_isr; |
2945 | sprintf(intr_context->name, "%s-rx-%d", | |
c4e84bde | 2946 | qdev->ndev->name, i); |
c4e84bde RM |
2947 | } |
2948 | } | |
2949 | } else { | |
2950 | /* | |
2951 | * All rx_rings use the same intr_context since | |
2952 | * there is only one vector. | |
2953 | */ | |
2954 | intr_context->intr = 0; | |
2955 | intr_context->qdev = qdev; | |
2956 | /* | |
2957 | * We set up each vectors enable/disable/read bits so | |
2958 | * there's no bit/mask calculations in the critical path. | |
2959 | */ | |
2960 | intr_context->intr_en_mask = | |
2961 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | INTR_EN_TYPE_ENABLE; | |
2962 | intr_context->intr_dis_mask = | |
2963 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | | |
2964 | INTR_EN_TYPE_DISABLE; | |
2965 | intr_context->intr_read_mask = | |
2966 | INTR_EN_TYPE_MASK | INTR_EN_INTR_MASK | INTR_EN_TYPE_READ; | |
2967 | /* | |
2968 | * Single interrupt means one handler for all rings. | |
2969 | */ | |
2970 | intr_context->handler = qlge_isr; | |
2971 | sprintf(intr_context->name, "%s-single_irq", qdev->ndev->name); | |
39aa8165 RM |
2972 | /* Set up this vector's bit-mask that indicates |
2973 | * which queues it services. In this case there is | |
2974 | * a single vector so it will service all RSS and | |
2975 | * TX completion rings. | |
2976 | */ | |
2977 | ql_set_irq_mask(qdev, intr_context); | |
c4e84bde | 2978 | } |
39aa8165 RM |
2979 | /* Tell the TX completion rings which MSIx vector |
2980 | * they will be using. | |
2981 | */ | |
2982 | ql_set_tx_vect(qdev); | |
c4e84bde RM |
2983 | } |
2984 | ||
2985 | static void ql_free_irq(struct ql_adapter *qdev) | |
2986 | { | |
2987 | int i; | |
2988 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
2989 | ||
2990 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
2991 | if (intr_context->hooked) { | |
2992 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
2993 | free_irq(qdev->msi_x_entry[i].vector, | |
2994 | &qdev->rx_ring[i]); | |
4974097a | 2995 | QPRINTK(qdev, IFDOWN, DEBUG, |
c4e84bde RM |
2996 | "freeing msix interrupt %d.\n", i); |
2997 | } else { | |
2998 | free_irq(qdev->pdev->irq, &qdev->rx_ring[0]); | |
4974097a | 2999 | QPRINTK(qdev, IFDOWN, DEBUG, |
c4e84bde RM |
3000 | "freeing msi interrupt %d.\n", i); |
3001 | } | |
3002 | } | |
3003 | } | |
3004 | ql_disable_msix(qdev); | |
3005 | } | |
3006 | ||
3007 | static int ql_request_irq(struct ql_adapter *qdev) | |
3008 | { | |
3009 | int i; | |
3010 | int status = 0; | |
3011 | struct pci_dev *pdev = qdev->pdev; | |
3012 | struct intr_context *intr_context = &qdev->intr_context[0]; | |
3013 | ||
3014 | ql_resolve_queues_to_irqs(qdev); | |
3015 | ||
3016 | for (i = 0; i < qdev->intr_count; i++, intr_context++) { | |
3017 | atomic_set(&intr_context->irq_cnt, 0); | |
3018 | if (test_bit(QL_MSIX_ENABLED, &qdev->flags)) { | |
3019 | status = request_irq(qdev->msi_x_entry[i].vector, | |
3020 | intr_context->handler, | |
3021 | 0, | |
3022 | intr_context->name, | |
3023 | &qdev->rx_ring[i]); | |
3024 | if (status) { | |
3025 | QPRINTK(qdev, IFUP, ERR, | |
3026 | "Failed request for MSIX interrupt %d.\n", | |
3027 | i); | |
3028 | goto err_irq; | |
3029 | } else { | |
4974097a | 3030 | QPRINTK(qdev, IFUP, DEBUG, |
c4e84bde RM |
3031 | "Hooked intr %d, queue type %s%s%s, with name %s.\n", |
3032 | i, | |
3033 | qdev->rx_ring[i].type == | |
3034 | DEFAULT_Q ? "DEFAULT_Q" : "", | |
3035 | qdev->rx_ring[i].type == | |
3036 | TX_Q ? "TX_Q" : "", | |
3037 | qdev->rx_ring[i].type == | |
3038 | RX_Q ? "RX_Q" : "", intr_context->name); | |
3039 | } | |
3040 | } else { | |
3041 | QPRINTK(qdev, IFUP, DEBUG, | |
3042 | "trying msi or legacy interrupts.\n"); | |
3043 | QPRINTK(qdev, IFUP, DEBUG, | |
3044 | "%s: irq = %d.\n", __func__, pdev->irq); | |
3045 | QPRINTK(qdev, IFUP, DEBUG, | |
3046 | "%s: context->name = %s.\n", __func__, | |
3047 | intr_context->name); | |
3048 | QPRINTK(qdev, IFUP, DEBUG, | |
3049 | "%s: dev_id = 0x%p.\n", __func__, | |
3050 | &qdev->rx_ring[0]); | |
3051 | status = | |
3052 | request_irq(pdev->irq, qlge_isr, | |
3053 | test_bit(QL_MSI_ENABLED, | |
3054 | &qdev-> | |
3055 | flags) ? 0 : IRQF_SHARED, | |
3056 | intr_context->name, &qdev->rx_ring[0]); | |
3057 | if (status) | |
3058 | goto err_irq; | |
3059 | ||
3060 | QPRINTK(qdev, IFUP, ERR, | |
3061 | "Hooked intr %d, queue type %s%s%s, with name %s.\n", | |
3062 | i, | |
3063 | qdev->rx_ring[0].type == | |
3064 | DEFAULT_Q ? "DEFAULT_Q" : "", | |
3065 | qdev->rx_ring[0].type == TX_Q ? "TX_Q" : "", | |
3066 | qdev->rx_ring[0].type == RX_Q ? "RX_Q" : "", | |
3067 | intr_context->name); | |
3068 | } | |
3069 | intr_context->hooked = 1; | |
3070 | } | |
3071 | return status; | |
3072 | err_irq: | |
3073 | QPRINTK(qdev, IFUP, ERR, "Failed to get the interrupts!!!/n"); | |
3074 | ql_free_irq(qdev); | |
3075 | return status; | |
3076 | } | |
3077 | ||
3078 | static int ql_start_rss(struct ql_adapter *qdev) | |
3079 | { | |
541ae28c RM |
3080 | u8 init_hash_seed[] = {0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, |
3081 | 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, | |
3082 | 0xb0, 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, | |
3083 | 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, | |
3084 | 0x30, 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, | |
3085 | 0xbe, 0xac, 0x01, 0xfa}; | |
c4e84bde RM |
3086 | struct ricb *ricb = &qdev->ricb; |
3087 | int status = 0; | |
3088 | int i; | |
3089 | u8 *hash_id = (u8 *) ricb->hash_cq_id; | |
3090 | ||
e332471c | 3091 | memset((void *)ricb, 0, sizeof(*ricb)); |
c4e84bde | 3092 | |
b2014ff8 | 3093 | ricb->base_cq = RSS_L4K; |
c4e84bde | 3094 | ricb->flags = |
541ae28c RM |
3095 | (RSS_L6K | RSS_LI | RSS_LB | RSS_LM | RSS_RT4 | RSS_RT6); |
3096 | ricb->mask = cpu_to_le16((u16)(0x3ff)); | |
c4e84bde RM |
3097 | |
3098 | /* | |
3099 | * Fill out the Indirection Table. | |
3100 | */ | |
541ae28c RM |
3101 | for (i = 0; i < 1024; i++) |
3102 | hash_id[i] = (i & (qdev->rss_ring_count - 1)); | |
c4e84bde | 3103 | |
541ae28c RM |
3104 | memcpy((void *)&ricb->ipv6_hash_key[0], init_hash_seed, 40); |
3105 | memcpy((void *)&ricb->ipv4_hash_key[0], init_hash_seed, 16); | |
c4e84bde | 3106 | |
4974097a | 3107 | QPRINTK(qdev, IFUP, DEBUG, "Initializing RSS.\n"); |
c4e84bde | 3108 | |
e332471c | 3109 | status = ql_write_cfg(qdev, ricb, sizeof(*ricb), CFG_LR, 0); |
c4e84bde RM |
3110 | if (status) { |
3111 | QPRINTK(qdev, IFUP, ERR, "Failed to load RICB.\n"); | |
3112 | return status; | |
3113 | } | |
4974097a | 3114 | QPRINTK(qdev, IFUP, DEBUG, "Successfully loaded RICB.\n"); |
c4e84bde RM |
3115 | return status; |
3116 | } | |
3117 | ||
a5f59dc9 | 3118 | static int ql_clear_routing_entries(struct ql_adapter *qdev) |
c4e84bde | 3119 | { |
a5f59dc9 | 3120 | int i, status = 0; |
c4e84bde | 3121 | |
8587ea35 RM |
3122 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
3123 | if (status) | |
3124 | return status; | |
c4e84bde RM |
3125 | /* Clear all the entries in the routing table. */ |
3126 | for (i = 0; i < 16; i++) { | |
3127 | status = ql_set_routing_reg(qdev, i, 0, 0); | |
3128 | if (status) { | |
3129 | QPRINTK(qdev, IFUP, ERR, | |
a5f59dc9 RM |
3130 | "Failed to init routing register for CAM " |
3131 | "packets.\n"); | |
3132 | break; | |
c4e84bde RM |
3133 | } |
3134 | } | |
a5f59dc9 RM |
3135 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); |
3136 | return status; | |
3137 | } | |
3138 | ||
3139 | /* Initialize the frame-to-queue routing. */ | |
3140 | static int ql_route_initialize(struct ql_adapter *qdev) | |
3141 | { | |
3142 | int status = 0; | |
3143 | ||
fd21cf52 RM |
3144 | /* Clear all the entries in the routing table. */ |
3145 | status = ql_clear_routing_entries(qdev); | |
a5f59dc9 RM |
3146 | if (status) |
3147 | return status; | |
3148 | ||
fd21cf52 | 3149 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
a5f59dc9 | 3150 | if (status) |
fd21cf52 | 3151 | return status; |
c4e84bde RM |
3152 | |
3153 | status = ql_set_routing_reg(qdev, RT_IDX_ALL_ERR_SLOT, RT_IDX_ERR, 1); | |
3154 | if (status) { | |
3155 | QPRINTK(qdev, IFUP, ERR, | |
3156 | "Failed to init routing register for error packets.\n"); | |
8587ea35 | 3157 | goto exit; |
c4e84bde RM |
3158 | } |
3159 | status = ql_set_routing_reg(qdev, RT_IDX_BCAST_SLOT, RT_IDX_BCAST, 1); | |
3160 | if (status) { | |
3161 | QPRINTK(qdev, IFUP, ERR, | |
3162 | "Failed to init routing register for broadcast packets.\n"); | |
8587ea35 | 3163 | goto exit; |
c4e84bde RM |
3164 | } |
3165 | /* If we have more than one inbound queue, then turn on RSS in the | |
3166 | * routing block. | |
3167 | */ | |
3168 | if (qdev->rss_ring_count > 1) { | |
3169 | status = ql_set_routing_reg(qdev, RT_IDX_RSS_MATCH_SLOT, | |
3170 | RT_IDX_RSS_MATCH, 1); | |
3171 | if (status) { | |
3172 | QPRINTK(qdev, IFUP, ERR, | |
3173 | "Failed to init routing register for MATCH RSS packets.\n"); | |
8587ea35 | 3174 | goto exit; |
c4e84bde RM |
3175 | } |
3176 | } | |
3177 | ||
3178 | status = ql_set_routing_reg(qdev, RT_IDX_CAM_HIT_SLOT, | |
3179 | RT_IDX_CAM_HIT, 1); | |
8587ea35 | 3180 | if (status) |
c4e84bde RM |
3181 | QPRINTK(qdev, IFUP, ERR, |
3182 | "Failed to init routing register for CAM packets.\n"); | |
8587ea35 RM |
3183 | exit: |
3184 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); | |
c4e84bde RM |
3185 | return status; |
3186 | } | |
3187 | ||
2ee1e272 | 3188 | int ql_cam_route_initialize(struct ql_adapter *qdev) |
bb58b5b6 | 3189 | { |
7fab3bfe | 3190 | int status, set; |
bb58b5b6 | 3191 | |
7fab3bfe RM |
3192 | /* If check if the link is up and use to |
3193 | * determine if we are setting or clearing | |
3194 | * the MAC address in the CAM. | |
3195 | */ | |
3196 | set = ql_read32(qdev, STS); | |
3197 | set &= qdev->port_link_up; | |
3198 | status = ql_set_mac_addr(qdev, set); | |
bb58b5b6 RM |
3199 | if (status) { |
3200 | QPRINTK(qdev, IFUP, ERR, "Failed to init mac address.\n"); | |
3201 | return status; | |
3202 | } | |
3203 | ||
3204 | status = ql_route_initialize(qdev); | |
3205 | if (status) | |
3206 | QPRINTK(qdev, IFUP, ERR, "Failed to init routing table.\n"); | |
3207 | ||
3208 | return status; | |
3209 | } | |
3210 | ||
c4e84bde RM |
3211 | static int ql_adapter_initialize(struct ql_adapter *qdev) |
3212 | { | |
3213 | u32 value, mask; | |
3214 | int i; | |
3215 | int status = 0; | |
3216 | ||
3217 | /* | |
3218 | * Set up the System register to halt on errors. | |
3219 | */ | |
3220 | value = SYS_EFE | SYS_FAE; | |
3221 | mask = value << 16; | |
3222 | ql_write32(qdev, SYS, mask | value); | |
3223 | ||
c9cf0a04 RM |
3224 | /* Set the default queue, and VLAN behavior. */ |
3225 | value = NIC_RCV_CFG_DFQ | NIC_RCV_CFG_RV; | |
3226 | mask = NIC_RCV_CFG_DFQ_MASK | (NIC_RCV_CFG_RV << 16); | |
c4e84bde RM |
3227 | ql_write32(qdev, NIC_RCV_CFG, (mask | value)); |
3228 | ||
3229 | /* Set the MPI interrupt to enabled. */ | |
3230 | ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI); | |
3231 | ||
3232 | /* Enable the function, set pagesize, enable error checking. */ | |
3233 | value = FSC_FE | FSC_EPC_INBOUND | FSC_EPC_OUTBOUND | | |
3234 | FSC_EC | FSC_VM_PAGE_4K | FSC_SH; | |
3235 | ||
3236 | /* Set/clear header splitting. */ | |
3237 | mask = FSC_VM_PAGESIZE_MASK | | |
3238 | FSC_DBL_MASK | FSC_DBRST_MASK | (value << 16); | |
3239 | ql_write32(qdev, FSC, mask | value); | |
3240 | ||
3241 | ql_write32(qdev, SPLT_HDR, SPLT_HDR_EP | | |
3242 | min(SMALL_BUFFER_SIZE, MAX_SPLIT_SIZE)); | |
3243 | ||
a3b71939 RM |
3244 | /* Set RX packet routing to use port/pci function on which the |
3245 | * packet arrived on in addition to usual frame routing. | |
3246 | * This is helpful on bonding where both interfaces can have | |
3247 | * the same MAC address. | |
3248 | */ | |
3249 | ql_write32(qdev, RST_FO, RST_FO_RR_MASK | RST_FO_RR_RCV_FUNC_CQ); | |
3250 | ||
c4e84bde RM |
3251 | /* Start up the rx queues. */ |
3252 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
3253 | status = ql_start_rx_ring(qdev, &qdev->rx_ring[i]); | |
3254 | if (status) { | |
3255 | QPRINTK(qdev, IFUP, ERR, | |
3256 | "Failed to start rx ring[%d].\n", i); | |
3257 | return status; | |
3258 | } | |
3259 | } | |
3260 | ||
3261 | /* If there is more than one inbound completion queue | |
3262 | * then download a RICB to configure RSS. | |
3263 | */ | |
3264 | if (qdev->rss_ring_count > 1) { | |
3265 | status = ql_start_rss(qdev); | |
3266 | if (status) { | |
3267 | QPRINTK(qdev, IFUP, ERR, "Failed to start RSS.\n"); | |
3268 | return status; | |
3269 | } | |
3270 | } | |
3271 | ||
3272 | /* Start up the tx queues. */ | |
3273 | for (i = 0; i < qdev->tx_ring_count; i++) { | |
3274 | status = ql_start_tx_ring(qdev, &qdev->tx_ring[i]); | |
3275 | if (status) { | |
3276 | QPRINTK(qdev, IFUP, ERR, | |
3277 | "Failed to start tx ring[%d].\n", i); | |
3278 | return status; | |
3279 | } | |
3280 | } | |
3281 | ||
b0c2aadf RM |
3282 | /* Initialize the port and set the max framesize. */ |
3283 | status = qdev->nic_ops->port_initialize(qdev); | |
3284 | if (status) { | |
3285 | QPRINTK(qdev, IFUP, ERR, "Failed to start port.\n"); | |
3286 | return status; | |
3287 | } | |
c4e84bde | 3288 | |
bb58b5b6 RM |
3289 | /* Set up the MAC address and frame routing filter. */ |
3290 | status = ql_cam_route_initialize(qdev); | |
c4e84bde | 3291 | if (status) { |
bb58b5b6 RM |
3292 | QPRINTK(qdev, IFUP, ERR, |
3293 | "Failed to init CAM/Routing tables.\n"); | |
c4e84bde RM |
3294 | return status; |
3295 | } | |
3296 | ||
3297 | /* Start NAPI for the RSS queues. */ | |
b2014ff8 | 3298 | for (i = 0; i < qdev->rss_ring_count; i++) { |
4974097a | 3299 | QPRINTK(qdev, IFUP, DEBUG, "Enabling NAPI for rx_ring[%d].\n", |
c4e84bde RM |
3300 | i); |
3301 | napi_enable(&qdev->rx_ring[i].napi); | |
3302 | } | |
3303 | ||
3304 | return status; | |
3305 | } | |
3306 | ||
3307 | /* Issue soft reset to chip. */ | |
3308 | static int ql_adapter_reset(struct ql_adapter *qdev) | |
3309 | { | |
3310 | u32 value; | |
c4e84bde | 3311 | int status = 0; |
a5f59dc9 | 3312 | unsigned long end_jiffies; |
c4e84bde | 3313 | |
a5f59dc9 RM |
3314 | /* Clear all the entries in the routing table. */ |
3315 | status = ql_clear_routing_entries(qdev); | |
3316 | if (status) { | |
3317 | QPRINTK(qdev, IFUP, ERR, "Failed to clear routing bits.\n"); | |
3318 | return status; | |
3319 | } | |
3320 | ||
3321 | end_jiffies = jiffies + | |
3322 | max((unsigned long)1, usecs_to_jiffies(30)); | |
c4e84bde | 3323 | ql_write32(qdev, RST_FO, (RST_FO_FR << 16) | RST_FO_FR); |
a75ee7f1 | 3324 | |
c4e84bde RM |
3325 | do { |
3326 | value = ql_read32(qdev, RST_FO); | |
3327 | if ((value & RST_FO_FR) == 0) | |
3328 | break; | |
a75ee7f1 RM |
3329 | cpu_relax(); |
3330 | } while (time_before(jiffies, end_jiffies)); | |
c4e84bde | 3331 | |
c4e84bde | 3332 | if (value & RST_FO_FR) { |
c4e84bde | 3333 | QPRINTK(qdev, IFDOWN, ERR, |
3ac49a1c | 3334 | "ETIMEDOUT!!! errored out of resetting the chip!\n"); |
a75ee7f1 | 3335 | status = -ETIMEDOUT; |
c4e84bde RM |
3336 | } |
3337 | ||
3338 | return status; | |
3339 | } | |
3340 | ||
3341 | static void ql_display_dev_info(struct net_device *ndev) | |
3342 | { | |
3343 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
3344 | ||
3345 | QPRINTK(qdev, PROBE, INFO, | |
e4552f51 | 3346 | "Function #%d, Port %d, NIC Roll %d, NIC Rev = %d, " |
c4e84bde RM |
3347 | "XG Roll = %d, XG Rev = %d.\n", |
3348 | qdev->func, | |
e4552f51 | 3349 | qdev->port, |
c4e84bde RM |
3350 | qdev->chip_rev_id & 0x0000000f, |
3351 | qdev->chip_rev_id >> 4 & 0x0000000f, | |
3352 | qdev->chip_rev_id >> 8 & 0x0000000f, | |
3353 | qdev->chip_rev_id >> 12 & 0x0000000f); | |
7c510e4b | 3354 | QPRINTK(qdev, PROBE, INFO, "MAC address %pM\n", ndev->dev_addr); |
c4e84bde RM |
3355 | } |
3356 | ||
3357 | static int ql_adapter_down(struct ql_adapter *qdev) | |
3358 | { | |
c4e84bde | 3359 | int i, status = 0; |
c4e84bde | 3360 | |
6a473308 | 3361 | ql_link_off(qdev); |
c4e84bde | 3362 | |
6497b607 RM |
3363 | /* Don't kill the reset worker thread if we |
3364 | * are in the process of recovery. | |
3365 | */ | |
3366 | if (test_bit(QL_ADAPTER_UP, &qdev->flags)) | |
3367 | cancel_delayed_work_sync(&qdev->asic_reset_work); | |
c4e84bde RM |
3368 | cancel_delayed_work_sync(&qdev->mpi_reset_work); |
3369 | cancel_delayed_work_sync(&qdev->mpi_work); | |
2ee1e272 | 3370 | cancel_delayed_work_sync(&qdev->mpi_idc_work); |
bcc2cb3b | 3371 | cancel_delayed_work_sync(&qdev->mpi_port_cfg_work); |
c4e84bde | 3372 | |
39aa8165 RM |
3373 | for (i = 0; i < qdev->rss_ring_count; i++) |
3374 | napi_disable(&qdev->rx_ring[i].napi); | |
c4e84bde RM |
3375 | |
3376 | clear_bit(QL_ADAPTER_UP, &qdev->flags); | |
3377 | ||
3378 | ql_disable_interrupts(qdev); | |
3379 | ||
3380 | ql_tx_ring_clean(qdev); | |
3381 | ||
6b318cb3 RM |
3382 | /* Call netif_napi_del() from common point. |
3383 | */ | |
b2014ff8 | 3384 | for (i = 0; i < qdev->rss_ring_count; i++) |
6b318cb3 RM |
3385 | netif_napi_del(&qdev->rx_ring[i].napi); |
3386 | ||
4545a3f2 | 3387 | ql_free_rx_buffers(qdev); |
2d6a5e95 | 3388 | |
c4e84bde RM |
3389 | status = ql_adapter_reset(qdev); |
3390 | if (status) | |
3391 | QPRINTK(qdev, IFDOWN, ERR, "reset(func #%d) FAILED!\n", | |
3392 | qdev->func); | |
c4e84bde RM |
3393 | return status; |
3394 | } | |
3395 | ||
3396 | static int ql_adapter_up(struct ql_adapter *qdev) | |
3397 | { | |
3398 | int err = 0; | |
3399 | ||
c4e84bde RM |
3400 | err = ql_adapter_initialize(qdev); |
3401 | if (err) { | |
3402 | QPRINTK(qdev, IFUP, INFO, "Unable to initialize adapter.\n"); | |
c4e84bde RM |
3403 | goto err_init; |
3404 | } | |
c4e84bde | 3405 | set_bit(QL_ADAPTER_UP, &qdev->flags); |
4545a3f2 | 3406 | ql_alloc_rx_buffers(qdev); |
8b007de1 RM |
3407 | /* If the port is initialized and the |
3408 | * link is up the turn on the carrier. | |
3409 | */ | |
3410 | if ((ql_read32(qdev, STS) & qdev->port_init) && | |
3411 | (ql_read32(qdev, STS) & qdev->port_link_up)) | |
6a473308 | 3412 | ql_link_on(qdev); |
c4e84bde RM |
3413 | ql_enable_interrupts(qdev); |
3414 | ql_enable_all_completion_interrupts(qdev); | |
1e213303 | 3415 | netif_tx_start_all_queues(qdev->ndev); |
c4e84bde RM |
3416 | |
3417 | return 0; | |
3418 | err_init: | |
3419 | ql_adapter_reset(qdev); | |
3420 | return err; | |
3421 | } | |
3422 | ||
c4e84bde RM |
3423 | static void ql_release_adapter_resources(struct ql_adapter *qdev) |
3424 | { | |
3425 | ql_free_mem_resources(qdev); | |
3426 | ql_free_irq(qdev); | |
3427 | } | |
3428 | ||
3429 | static int ql_get_adapter_resources(struct ql_adapter *qdev) | |
3430 | { | |
3431 | int status = 0; | |
3432 | ||
3433 | if (ql_alloc_mem_resources(qdev)) { | |
3434 | QPRINTK(qdev, IFUP, ERR, "Unable to allocate memory.\n"); | |
3435 | return -ENOMEM; | |
3436 | } | |
3437 | status = ql_request_irq(qdev); | |
c4e84bde RM |
3438 | return status; |
3439 | } | |
3440 | ||
3441 | static int qlge_close(struct net_device *ndev) | |
3442 | { | |
3443 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3444 | ||
3445 | /* | |
3446 | * Wait for device to recover from a reset. | |
3447 | * (Rarely happens, but possible.) | |
3448 | */ | |
3449 | while (!test_bit(QL_ADAPTER_UP, &qdev->flags)) | |
3450 | msleep(1); | |
3451 | ql_adapter_down(qdev); | |
3452 | ql_release_adapter_resources(qdev); | |
c4e84bde RM |
3453 | return 0; |
3454 | } | |
3455 | ||
3456 | static int ql_configure_rings(struct ql_adapter *qdev) | |
3457 | { | |
3458 | int i; | |
3459 | struct rx_ring *rx_ring; | |
3460 | struct tx_ring *tx_ring; | |
a4ab6137 RM |
3461 | int cpu_cnt = min(MAX_CPUS, (int)num_online_cpus()); |
3462 | ||
3463 | /* In a perfect world we have one RSS ring for each CPU | |
3464 | * and each has it's own vector. To do that we ask for | |
3465 | * cpu_cnt vectors. ql_enable_msix() will adjust the | |
3466 | * vector count to what we actually get. We then | |
3467 | * allocate an RSS ring for each. | |
3468 | * Essentially, we are doing min(cpu_count, msix_vector_count). | |
c4e84bde | 3469 | */ |
a4ab6137 RM |
3470 | qdev->intr_count = cpu_cnt; |
3471 | ql_enable_msix(qdev); | |
3472 | /* Adjust the RSS ring count to the actual vector count. */ | |
3473 | qdev->rss_ring_count = qdev->intr_count; | |
c4e84bde | 3474 | qdev->tx_ring_count = cpu_cnt; |
b2014ff8 | 3475 | qdev->rx_ring_count = qdev->tx_ring_count + qdev->rss_ring_count; |
c4e84bde | 3476 | |
c4e84bde RM |
3477 | for (i = 0; i < qdev->tx_ring_count; i++) { |
3478 | tx_ring = &qdev->tx_ring[i]; | |
e332471c | 3479 | memset((void *)tx_ring, 0, sizeof(*tx_ring)); |
c4e84bde RM |
3480 | tx_ring->qdev = qdev; |
3481 | tx_ring->wq_id = i; | |
3482 | tx_ring->wq_len = qdev->tx_ring_size; | |
3483 | tx_ring->wq_size = | |
3484 | tx_ring->wq_len * sizeof(struct ob_mac_iocb_req); | |
3485 | ||
3486 | /* | |
3487 | * The completion queue ID for the tx rings start | |
39aa8165 | 3488 | * immediately after the rss rings. |
c4e84bde | 3489 | */ |
39aa8165 | 3490 | tx_ring->cq_id = qdev->rss_ring_count + i; |
c4e84bde RM |
3491 | } |
3492 | ||
3493 | for (i = 0; i < qdev->rx_ring_count; i++) { | |
3494 | rx_ring = &qdev->rx_ring[i]; | |
e332471c | 3495 | memset((void *)rx_ring, 0, sizeof(*rx_ring)); |
c4e84bde RM |
3496 | rx_ring->qdev = qdev; |
3497 | rx_ring->cq_id = i; | |
3498 | rx_ring->cpu = i % cpu_cnt; /* CPU to run handler on. */ | |
b2014ff8 | 3499 | if (i < qdev->rss_ring_count) { |
39aa8165 RM |
3500 | /* |
3501 | * Inbound (RSS) queues. | |
3502 | */ | |
c4e84bde RM |
3503 | rx_ring->cq_len = qdev->rx_ring_size; |
3504 | rx_ring->cq_size = | |
3505 | rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb); | |
3506 | rx_ring->lbq_len = NUM_LARGE_BUFFERS; | |
3507 | rx_ring->lbq_size = | |
2c9a0d41 | 3508 | rx_ring->lbq_len * sizeof(__le64); |
c4e84bde RM |
3509 | rx_ring->lbq_buf_size = LARGE_BUFFER_SIZE; |
3510 | rx_ring->sbq_len = NUM_SMALL_BUFFERS; | |
3511 | rx_ring->sbq_size = | |
2c9a0d41 | 3512 | rx_ring->sbq_len * sizeof(__le64); |
c4e84bde | 3513 | rx_ring->sbq_buf_size = SMALL_BUFFER_SIZE * 2; |
b2014ff8 RM |
3514 | rx_ring->type = RX_Q; |
3515 | } else { | |
c4e84bde RM |
3516 | /* |
3517 | * Outbound queue handles outbound completions only. | |
3518 | */ | |
3519 | /* outbound cq is same size as tx_ring it services. */ | |
3520 | rx_ring->cq_len = qdev->tx_ring_size; | |
3521 | rx_ring->cq_size = | |
3522 | rx_ring->cq_len * sizeof(struct ql_net_rsp_iocb); | |
3523 | rx_ring->lbq_len = 0; | |
3524 | rx_ring->lbq_size = 0; | |
3525 | rx_ring->lbq_buf_size = 0; | |
3526 | rx_ring->sbq_len = 0; | |
3527 | rx_ring->sbq_size = 0; | |
3528 | rx_ring->sbq_buf_size = 0; | |
3529 | rx_ring->type = TX_Q; | |
c4e84bde RM |
3530 | } |
3531 | } | |
3532 | return 0; | |
3533 | } | |
3534 | ||
3535 | static int qlge_open(struct net_device *ndev) | |
3536 | { | |
3537 | int err = 0; | |
3538 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3539 | ||
3540 | err = ql_configure_rings(qdev); | |
3541 | if (err) | |
3542 | return err; | |
3543 | ||
3544 | err = ql_get_adapter_resources(qdev); | |
3545 | if (err) | |
3546 | goto error_up; | |
3547 | ||
3548 | err = ql_adapter_up(qdev); | |
3549 | if (err) | |
3550 | goto error_up; | |
3551 | ||
3552 | return err; | |
3553 | ||
3554 | error_up: | |
3555 | ql_release_adapter_resources(qdev); | |
c4e84bde RM |
3556 | return err; |
3557 | } | |
3558 | ||
3559 | static int qlge_change_mtu(struct net_device *ndev, int new_mtu) | |
3560 | { | |
3561 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3562 | ||
3563 | if (ndev->mtu == 1500 && new_mtu == 9000) { | |
3564 | QPRINTK(qdev, IFUP, ERR, "Changing to jumbo MTU.\n"); | |
bcc2cb3b RM |
3565 | queue_delayed_work(qdev->workqueue, |
3566 | &qdev->mpi_port_cfg_work, 0); | |
c4e84bde RM |
3567 | } else if (ndev->mtu == 9000 && new_mtu == 1500) { |
3568 | QPRINTK(qdev, IFUP, ERR, "Changing to normal MTU.\n"); | |
3569 | } else if ((ndev->mtu == 1500 && new_mtu == 1500) || | |
3570 | (ndev->mtu == 9000 && new_mtu == 9000)) { | |
3571 | return 0; | |
3572 | } else | |
3573 | return -EINVAL; | |
3574 | ndev->mtu = new_mtu; | |
3575 | return 0; | |
3576 | } | |
3577 | ||
3578 | static struct net_device_stats *qlge_get_stats(struct net_device | |
3579 | *ndev) | |
3580 | { | |
3581 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3582 | return &qdev->stats; | |
3583 | } | |
3584 | ||
3585 | static void qlge_set_multicast_list(struct net_device *ndev) | |
3586 | { | |
3587 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
3588 | struct dev_mc_list *mc_ptr; | |
cc288f54 | 3589 | int i, status; |
c4e84bde | 3590 | |
cc288f54 RM |
3591 | status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK); |
3592 | if (status) | |
3593 | return; | |
c4e84bde RM |
3594 | /* |
3595 | * Set or clear promiscuous mode if a | |
3596 | * transition is taking place. | |
3597 | */ | |
3598 | if (ndev->flags & IFF_PROMISC) { | |
3599 | if (!test_bit(QL_PROMISCUOUS, &qdev->flags)) { | |
3600 | if (ql_set_routing_reg | |
3601 | (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 1)) { | |
3602 | QPRINTK(qdev, HW, ERR, | |
3603 | "Failed to set promiscous mode.\n"); | |
3604 | } else { | |
3605 | set_bit(QL_PROMISCUOUS, &qdev->flags); | |
3606 | } | |
3607 | } | |
3608 | } else { | |
3609 | if (test_bit(QL_PROMISCUOUS, &qdev->flags)) { | |
3610 | if (ql_set_routing_reg | |
3611 | (qdev, RT_IDX_PROMISCUOUS_SLOT, RT_IDX_VALID, 0)) { | |
3612 | QPRINTK(qdev, HW, ERR, | |
3613 | "Failed to clear promiscous mode.\n"); | |
3614 | } else { | |
3615 | clear_bit(QL_PROMISCUOUS, &qdev->flags); | |
3616 | } | |
3617 | } | |
3618 | } | |
3619 | ||
3620 | /* | |
3621 | * Set or clear all multicast mode if a | |
3622 | * transition is taking place. | |
3623 | */ | |
3624 | if ((ndev->flags & IFF_ALLMULTI) || | |
3625 | (ndev->mc_count > MAX_MULTICAST_ENTRIES)) { | |
3626 | if (!test_bit(QL_ALLMULTI, &qdev->flags)) { | |
3627 | if (ql_set_routing_reg | |
3628 | (qdev, RT_IDX_ALLMULTI_SLOT, RT_IDX_MCAST, 1)) { | |
3629 | QPRINTK(qdev, HW, ERR, | |
3630 | "Failed to set all-multi mode.\n"); | |
3631 | } else { | |
3632 | set_bit(QL_ALLMULTI, &qdev->flags); | |
3633 | } | |
3634 | } | |
3635 | } else { | |
3636 | if (test_bit(QL_ALLMULTI, &qdev->flags)) { | |
3637 | if (ql_set_routing_reg | |
3638 | (qdev, RT_IDX_ALLMULTI_SLOT, RT_IDX_MCAST, 0)) { | |
3639 | QPRINTK(qdev, HW, ERR, | |
3640 | "Failed to clear all-multi mode.\n"); | |
3641 | } else { | |
3642 | clear_bit(QL_ALLMULTI, &qdev->flags); | |
3643 | } | |
3644 | } | |
3645 | } | |
3646 | ||
3647 | if (ndev->mc_count) { | |
cc288f54 RM |
3648 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
3649 | if (status) | |
3650 | goto exit; | |
c4e84bde RM |
3651 | for (i = 0, mc_ptr = ndev->mc_list; mc_ptr; |
3652 | i++, mc_ptr = mc_ptr->next) | |
3653 | if (ql_set_mac_addr_reg(qdev, (u8 *) mc_ptr->dmi_addr, | |
3654 | MAC_ADDR_TYPE_MULTI_MAC, i)) { | |
3655 | QPRINTK(qdev, HW, ERR, | |
3656 | "Failed to loadmulticast address.\n"); | |
cc288f54 | 3657 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
3658 | goto exit; |
3659 | } | |
cc288f54 | 3660 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); |
c4e84bde RM |
3661 | if (ql_set_routing_reg |
3662 | (qdev, RT_IDX_MCAST_MATCH_SLOT, RT_IDX_MCAST_MATCH, 1)) { | |
3663 | QPRINTK(qdev, HW, ERR, | |
3664 | "Failed to set multicast match mode.\n"); | |
3665 | } else { | |
3666 | set_bit(QL_ALLMULTI, &qdev->flags); | |
3667 | } | |
3668 | } | |
3669 | exit: | |
8587ea35 | 3670 | ql_sem_unlock(qdev, SEM_RT_IDX_MASK); |
c4e84bde RM |
3671 | } |
3672 | ||
3673 | static int qlge_set_mac_address(struct net_device *ndev, void *p) | |
3674 | { | |
3675 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
3676 | struct sockaddr *addr = p; | |
cc288f54 | 3677 | int status; |
c4e84bde RM |
3678 | |
3679 | if (netif_running(ndev)) | |
3680 | return -EBUSY; | |
3681 | ||
3682 | if (!is_valid_ether_addr(addr->sa_data)) | |
3683 | return -EADDRNOTAVAIL; | |
3684 | memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len); | |
3685 | ||
cc288f54 RM |
3686 | status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK); |
3687 | if (status) | |
3688 | return status; | |
cc288f54 RM |
3689 | status = ql_set_mac_addr_reg(qdev, (u8 *) ndev->dev_addr, |
3690 | MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ); | |
cc288f54 RM |
3691 | if (status) |
3692 | QPRINTK(qdev, HW, ERR, "Failed to load MAC address.\n"); | |
3693 | ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK); | |
3694 | return status; | |
c4e84bde RM |
3695 | } |
3696 | ||
3697 | static void qlge_tx_timeout(struct net_device *ndev) | |
3698 | { | |
3699 | struct ql_adapter *qdev = (struct ql_adapter *)netdev_priv(ndev); | |
6497b607 | 3700 | ql_queue_asic_error(qdev); |
c4e84bde RM |
3701 | } |
3702 | ||
3703 | static void ql_asic_reset_work(struct work_struct *work) | |
3704 | { | |
3705 | struct ql_adapter *qdev = | |
3706 | container_of(work, struct ql_adapter, asic_reset_work.work); | |
db98812f | 3707 | int status; |
f2c0d8df | 3708 | rtnl_lock(); |
db98812f RM |
3709 | status = ql_adapter_down(qdev); |
3710 | if (status) | |
3711 | goto error; | |
3712 | ||
3713 | status = ql_adapter_up(qdev); | |
3714 | if (status) | |
3715 | goto error; | |
f2c0d8df | 3716 | rtnl_unlock(); |
db98812f RM |
3717 | return; |
3718 | error: | |
3719 | QPRINTK(qdev, IFUP, ALERT, | |
3720 | "Driver up/down cycle failed, closing device\n"); | |
f2c0d8df | 3721 | |
db98812f RM |
3722 | set_bit(QL_ADAPTER_UP, &qdev->flags); |
3723 | dev_close(qdev->ndev); | |
3724 | rtnl_unlock(); | |
c4e84bde RM |
3725 | } |
3726 | ||
b0c2aadf RM |
3727 | static struct nic_operations qla8012_nic_ops = { |
3728 | .get_flash = ql_get_8012_flash_params, | |
3729 | .port_initialize = ql_8012_port_initialize, | |
3730 | }; | |
3731 | ||
cdca8d02 RM |
3732 | static struct nic_operations qla8000_nic_ops = { |
3733 | .get_flash = ql_get_8000_flash_params, | |
3734 | .port_initialize = ql_8000_port_initialize, | |
3735 | }; | |
3736 | ||
e4552f51 RM |
3737 | /* Find the pcie function number for the other NIC |
3738 | * on this chip. Since both NIC functions share a | |
3739 | * common firmware we have the lowest enabled function | |
3740 | * do any common work. Examples would be resetting | |
3741 | * after a fatal firmware error, or doing a firmware | |
3742 | * coredump. | |
3743 | */ | |
3744 | static int ql_get_alt_pcie_func(struct ql_adapter *qdev) | |
3745 | { | |
3746 | int status = 0; | |
3747 | u32 temp; | |
3748 | u32 nic_func1, nic_func2; | |
3749 | ||
3750 | status = ql_read_mpi_reg(qdev, MPI_TEST_FUNC_PORT_CFG, | |
3751 | &temp); | |
3752 | if (status) | |
3753 | return status; | |
3754 | ||
3755 | nic_func1 = ((temp >> MPI_TEST_NIC1_FUNC_SHIFT) & | |
3756 | MPI_TEST_NIC_FUNC_MASK); | |
3757 | nic_func2 = ((temp >> MPI_TEST_NIC2_FUNC_SHIFT) & | |
3758 | MPI_TEST_NIC_FUNC_MASK); | |
3759 | ||
3760 | if (qdev->func == nic_func1) | |
3761 | qdev->alt_func = nic_func2; | |
3762 | else if (qdev->func == nic_func2) | |
3763 | qdev->alt_func = nic_func1; | |
3764 | else | |
3765 | status = -EIO; | |
3766 | ||
3767 | return status; | |
3768 | } | |
b0c2aadf | 3769 | |
e4552f51 | 3770 | static int ql_get_board_info(struct ql_adapter *qdev) |
c4e84bde | 3771 | { |
e4552f51 | 3772 | int status; |
c4e84bde RM |
3773 | qdev->func = |
3774 | (ql_read32(qdev, STS) & STS_FUNC_ID_MASK) >> STS_FUNC_ID_SHIFT; | |
e4552f51 RM |
3775 | if (qdev->func > 3) |
3776 | return -EIO; | |
3777 | ||
3778 | status = ql_get_alt_pcie_func(qdev); | |
3779 | if (status) | |
3780 | return status; | |
3781 | ||
3782 | qdev->port = (qdev->func < qdev->alt_func) ? 0 : 1; | |
3783 | if (qdev->port) { | |
c4e84bde RM |
3784 | qdev->xg_sem_mask = SEM_XGMAC1_MASK; |
3785 | qdev->port_link_up = STS_PL1; | |
3786 | qdev->port_init = STS_PI1; | |
3787 | qdev->mailbox_in = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC2_MBI; | |
3788 | qdev->mailbox_out = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC2_MBO; | |
3789 | } else { | |
3790 | qdev->xg_sem_mask = SEM_XGMAC0_MASK; | |
3791 | qdev->port_link_up = STS_PL0; | |
3792 | qdev->port_init = STS_PI0; | |
3793 | qdev->mailbox_in = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC0_MBI; | |
3794 | qdev->mailbox_out = PROC_ADDR_MPI_RISC | PROC_ADDR_FUNC0_MBO; | |
3795 | } | |
3796 | qdev->chip_rev_id = ql_read32(qdev, REV_ID); | |
b0c2aadf RM |
3797 | qdev->device_id = qdev->pdev->device; |
3798 | if (qdev->device_id == QLGE_DEVICE_ID_8012) | |
3799 | qdev->nic_ops = &qla8012_nic_ops; | |
cdca8d02 RM |
3800 | else if (qdev->device_id == QLGE_DEVICE_ID_8000) |
3801 | qdev->nic_ops = &qla8000_nic_ops; | |
e4552f51 | 3802 | return status; |
c4e84bde RM |
3803 | } |
3804 | ||
3805 | static void ql_release_all(struct pci_dev *pdev) | |
3806 | { | |
3807 | struct net_device *ndev = pci_get_drvdata(pdev); | |
3808 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3809 | ||
3810 | if (qdev->workqueue) { | |
3811 | destroy_workqueue(qdev->workqueue); | |
3812 | qdev->workqueue = NULL; | |
3813 | } | |
39aa8165 | 3814 | |
c4e84bde | 3815 | if (qdev->reg_base) |
8668ae92 | 3816 | iounmap(qdev->reg_base); |
c4e84bde RM |
3817 | if (qdev->doorbell_area) |
3818 | iounmap(qdev->doorbell_area); | |
3819 | pci_release_regions(pdev); | |
3820 | pci_set_drvdata(pdev, NULL); | |
3821 | } | |
3822 | ||
3823 | static int __devinit ql_init_device(struct pci_dev *pdev, | |
3824 | struct net_device *ndev, int cards_found) | |
3825 | { | |
3826 | struct ql_adapter *qdev = netdev_priv(ndev); | |
3827 | int pos, err = 0; | |
3828 | u16 val16; | |
3829 | ||
e332471c | 3830 | memset((void *)qdev, 0, sizeof(*qdev)); |
c4e84bde RM |
3831 | err = pci_enable_device(pdev); |
3832 | if (err) { | |
3833 | dev_err(&pdev->dev, "PCI device enable failed.\n"); | |
3834 | return err; | |
3835 | } | |
3836 | ||
ebd6e774 RM |
3837 | qdev->ndev = ndev; |
3838 | qdev->pdev = pdev; | |
3839 | pci_set_drvdata(pdev, ndev); | |
c4e84bde RM |
3840 | pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); |
3841 | if (pos <= 0) { | |
3842 | dev_err(&pdev->dev, PFX "Cannot find PCI Express capability, " | |
3843 | "aborting.\n"); | |
ebd6e774 | 3844 | return pos; |
c4e84bde RM |
3845 | } else { |
3846 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16); | |
3847 | val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; | |
3848 | val16 |= (PCI_EXP_DEVCTL_CERE | | |
3849 | PCI_EXP_DEVCTL_NFERE | | |
3850 | PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE); | |
3851 | pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16); | |
3852 | } | |
3853 | ||
3854 | err = pci_request_regions(pdev, DRV_NAME); | |
3855 | if (err) { | |
3856 | dev_err(&pdev->dev, "PCI region request failed.\n"); | |
ebd6e774 | 3857 | return err; |
c4e84bde RM |
3858 | } |
3859 | ||
3860 | pci_set_master(pdev); | |
6a35528a | 3861 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
c4e84bde | 3862 | set_bit(QL_DMA64, &qdev->flags); |
6a35528a | 3863 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
c4e84bde | 3864 | } else { |
284901a9 | 3865 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
c4e84bde | 3866 | if (!err) |
284901a9 | 3867 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
c4e84bde RM |
3868 | } |
3869 | ||
3870 | if (err) { | |
3871 | dev_err(&pdev->dev, "No usable DMA configuration.\n"); | |
3872 | goto err_out; | |
3873 | } | |
3874 | ||
c4e84bde RM |
3875 | qdev->reg_base = |
3876 | ioremap_nocache(pci_resource_start(pdev, 1), | |
3877 | pci_resource_len(pdev, 1)); | |
3878 | if (!qdev->reg_base) { | |
3879 | dev_err(&pdev->dev, "Register mapping failed.\n"); | |
3880 | err = -ENOMEM; | |
3881 | goto err_out; | |
3882 | } | |
3883 | ||
3884 | qdev->doorbell_area_size = pci_resource_len(pdev, 3); | |
3885 | qdev->doorbell_area = | |
3886 | ioremap_nocache(pci_resource_start(pdev, 3), | |
3887 | pci_resource_len(pdev, 3)); | |
3888 | if (!qdev->doorbell_area) { | |
3889 | dev_err(&pdev->dev, "Doorbell register mapping failed.\n"); | |
3890 | err = -ENOMEM; | |
3891 | goto err_out; | |
3892 | } | |
3893 | ||
e4552f51 RM |
3894 | err = ql_get_board_info(qdev); |
3895 | if (err) { | |
3896 | dev_err(&pdev->dev, "Register access failed.\n"); | |
3897 | err = -EIO; | |
3898 | goto err_out; | |
3899 | } | |
c4e84bde RM |
3900 | qdev->msg_enable = netif_msg_init(debug, default_msg); |
3901 | spin_lock_init(&qdev->hw_lock); | |
3902 | spin_lock_init(&qdev->stats_lock); | |
3903 | ||
3904 | /* make sure the EEPROM is good */ | |
b0c2aadf | 3905 | err = qdev->nic_ops->get_flash(qdev); |
c4e84bde RM |
3906 | if (err) { |
3907 | dev_err(&pdev->dev, "Invalid FLASH.\n"); | |
3908 | goto err_out; | |
3909 | } | |
3910 | ||
c4e84bde RM |
3911 | memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len); |
3912 | ||
3913 | /* Set up the default ring sizes. */ | |
3914 | qdev->tx_ring_size = NUM_TX_RING_ENTRIES; | |
3915 | qdev->rx_ring_size = NUM_RX_RING_ENTRIES; | |
3916 | ||
3917 | /* Set up the coalescing parameters. */ | |
3918 | qdev->rx_coalesce_usecs = DFLT_COALESCE_WAIT; | |
3919 | qdev->tx_coalesce_usecs = DFLT_COALESCE_WAIT; | |
3920 | qdev->rx_max_coalesced_frames = DFLT_INTER_FRAME_WAIT; | |
3921 | qdev->tx_max_coalesced_frames = DFLT_INTER_FRAME_WAIT; | |
3922 | ||
3923 | /* | |
3924 | * Set up the operating parameters. | |
3925 | */ | |
3926 | qdev->rx_csum = 1; | |
c4e84bde RM |
3927 | qdev->workqueue = create_singlethread_workqueue(ndev->name); |
3928 | INIT_DELAYED_WORK(&qdev->asic_reset_work, ql_asic_reset_work); | |
3929 | INIT_DELAYED_WORK(&qdev->mpi_reset_work, ql_mpi_reset_work); | |
3930 | INIT_DELAYED_WORK(&qdev->mpi_work, ql_mpi_work); | |
bcc2cb3b | 3931 | INIT_DELAYED_WORK(&qdev->mpi_port_cfg_work, ql_mpi_port_cfg_work); |
2ee1e272 | 3932 | INIT_DELAYED_WORK(&qdev->mpi_idc_work, ql_mpi_idc_work); |
bcc2cb3b | 3933 | init_completion(&qdev->ide_completion); |
c4e84bde RM |
3934 | |
3935 | if (!cards_found) { | |
3936 | dev_info(&pdev->dev, "%s\n", DRV_STRING); | |
3937 | dev_info(&pdev->dev, "Driver name: %s, Version: %s.\n", | |
3938 | DRV_NAME, DRV_VERSION); | |
3939 | } | |
3940 | return 0; | |
3941 | err_out: | |
3942 | ql_release_all(pdev); | |
3943 | pci_disable_device(pdev); | |
3944 | return err; | |
3945 | } | |
3946 | ||
25ed7849 SH |
3947 | |
3948 | static const struct net_device_ops qlge_netdev_ops = { | |
3949 | .ndo_open = qlge_open, | |
3950 | .ndo_stop = qlge_close, | |
3951 | .ndo_start_xmit = qlge_send, | |
3952 | .ndo_change_mtu = qlge_change_mtu, | |
3953 | .ndo_get_stats = qlge_get_stats, | |
3954 | .ndo_set_multicast_list = qlge_set_multicast_list, | |
3955 | .ndo_set_mac_address = qlge_set_mac_address, | |
3956 | .ndo_validate_addr = eth_validate_addr, | |
3957 | .ndo_tx_timeout = qlge_tx_timeout, | |
3958 | .ndo_vlan_rx_register = ql_vlan_rx_register, | |
3959 | .ndo_vlan_rx_add_vid = ql_vlan_rx_add_vid, | |
3960 | .ndo_vlan_rx_kill_vid = ql_vlan_rx_kill_vid, | |
3961 | }; | |
3962 | ||
c4e84bde RM |
3963 | static int __devinit qlge_probe(struct pci_dev *pdev, |
3964 | const struct pci_device_id *pci_entry) | |
3965 | { | |
3966 | struct net_device *ndev = NULL; | |
3967 | struct ql_adapter *qdev = NULL; | |
3968 | static int cards_found = 0; | |
3969 | int err = 0; | |
3970 | ||
1e213303 RM |
3971 | ndev = alloc_etherdev_mq(sizeof(struct ql_adapter), |
3972 | min(MAX_CPUS, (int)num_online_cpus())); | |
c4e84bde RM |
3973 | if (!ndev) |
3974 | return -ENOMEM; | |
3975 | ||
3976 | err = ql_init_device(pdev, ndev, cards_found); | |
3977 | if (err < 0) { | |
3978 | free_netdev(ndev); | |
3979 | return err; | |
3980 | } | |
3981 | ||
3982 | qdev = netdev_priv(ndev); | |
3983 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
3984 | ndev->features = (0 | |
3985 | | NETIF_F_IP_CSUM | |
3986 | | NETIF_F_SG | |
3987 | | NETIF_F_TSO | |
3988 | | NETIF_F_TSO6 | |
3989 | | NETIF_F_TSO_ECN | |
3990 | | NETIF_F_HW_VLAN_TX | |
3991 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER); | |
22bdd4f5 | 3992 | ndev->features |= NETIF_F_GRO; |
c4e84bde RM |
3993 | |
3994 | if (test_bit(QL_DMA64, &qdev->flags)) | |
3995 | ndev->features |= NETIF_F_HIGHDMA; | |
3996 | ||
3997 | /* | |
3998 | * Set up net_device structure. | |
3999 | */ | |
4000 | ndev->tx_queue_len = qdev->tx_ring_size; | |
4001 | ndev->irq = pdev->irq; | |
25ed7849 SH |
4002 | |
4003 | ndev->netdev_ops = &qlge_netdev_ops; | |
c4e84bde | 4004 | SET_ETHTOOL_OPS(ndev, &qlge_ethtool_ops); |
c4e84bde | 4005 | ndev->watchdog_timeo = 10 * HZ; |
25ed7849 | 4006 | |
c4e84bde RM |
4007 | err = register_netdev(ndev); |
4008 | if (err) { | |
4009 | dev_err(&pdev->dev, "net device registration failed.\n"); | |
4010 | ql_release_all(pdev); | |
4011 | pci_disable_device(pdev); | |
4012 | return err; | |
4013 | } | |
6a473308 | 4014 | ql_link_off(qdev); |
c4e84bde RM |
4015 | ql_display_dev_info(ndev); |
4016 | cards_found++; | |
4017 | return 0; | |
4018 | } | |
4019 | ||
4020 | static void __devexit qlge_remove(struct pci_dev *pdev) | |
4021 | { | |
4022 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4023 | unregister_netdev(ndev); | |
4024 | ql_release_all(pdev); | |
4025 | pci_disable_device(pdev); | |
4026 | free_netdev(ndev); | |
4027 | } | |
4028 | ||
4029 | /* | |
4030 | * This callback is called by the PCI subsystem whenever | |
4031 | * a PCI bus error is detected. | |
4032 | */ | |
4033 | static pci_ers_result_t qlge_io_error_detected(struct pci_dev *pdev, | |
4034 | enum pci_channel_state state) | |
4035 | { | |
4036 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4037 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4038 | ||
fbc663ce DN |
4039 | netif_device_detach(ndev); |
4040 | ||
4041 | if (state == pci_channel_io_perm_failure) | |
4042 | return PCI_ERS_RESULT_DISCONNECT; | |
4043 | ||
c4e84bde RM |
4044 | if (netif_running(ndev)) |
4045 | ql_adapter_down(qdev); | |
4046 | ||
4047 | pci_disable_device(pdev); | |
4048 | ||
4049 | /* Request a slot reset. */ | |
4050 | return PCI_ERS_RESULT_NEED_RESET; | |
4051 | } | |
4052 | ||
4053 | /* | |
4054 | * This callback is called after the PCI buss has been reset. | |
4055 | * Basically, this tries to restart the card from scratch. | |
4056 | * This is a shortened version of the device probe/discovery code, | |
4057 | * it resembles the first-half of the () routine. | |
4058 | */ | |
4059 | static pci_ers_result_t qlge_io_slot_reset(struct pci_dev *pdev) | |
4060 | { | |
4061 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4062 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4063 | ||
4064 | if (pci_enable_device(pdev)) { | |
4065 | QPRINTK(qdev, IFUP, ERR, | |
4066 | "Cannot re-enable PCI device after reset.\n"); | |
4067 | return PCI_ERS_RESULT_DISCONNECT; | |
4068 | } | |
4069 | ||
4070 | pci_set_master(pdev); | |
4071 | ||
4072 | netif_carrier_off(ndev); | |
c4e84bde RM |
4073 | ql_adapter_reset(qdev); |
4074 | ||
4075 | /* Make sure the EEPROM is good */ | |
4076 | memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len); | |
4077 | ||
4078 | if (!is_valid_ether_addr(ndev->perm_addr)) { | |
4079 | QPRINTK(qdev, IFUP, ERR, "After reset, invalid MAC address.\n"); | |
4080 | return PCI_ERS_RESULT_DISCONNECT; | |
4081 | } | |
4082 | ||
4083 | return PCI_ERS_RESULT_RECOVERED; | |
4084 | } | |
4085 | ||
4086 | static void qlge_io_resume(struct pci_dev *pdev) | |
4087 | { | |
4088 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4089 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4090 | ||
4091 | pci_set_master(pdev); | |
4092 | ||
4093 | if (netif_running(ndev)) { | |
4094 | if (ql_adapter_up(qdev)) { | |
4095 | QPRINTK(qdev, IFUP, ERR, | |
4096 | "Device initialization failed after reset.\n"); | |
4097 | return; | |
4098 | } | |
4099 | } | |
4100 | ||
4101 | netif_device_attach(ndev); | |
4102 | } | |
4103 | ||
4104 | static struct pci_error_handlers qlge_err_handler = { | |
4105 | .error_detected = qlge_io_error_detected, | |
4106 | .slot_reset = qlge_io_slot_reset, | |
4107 | .resume = qlge_io_resume, | |
4108 | }; | |
4109 | ||
4110 | static int qlge_suspend(struct pci_dev *pdev, pm_message_t state) | |
4111 | { | |
4112 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4113 | struct ql_adapter *qdev = netdev_priv(ndev); | |
6b318cb3 | 4114 | int err; |
c4e84bde RM |
4115 | |
4116 | netif_device_detach(ndev); | |
4117 | ||
4118 | if (netif_running(ndev)) { | |
4119 | err = ql_adapter_down(qdev); | |
4120 | if (!err) | |
4121 | return err; | |
4122 | } | |
4123 | ||
4124 | err = pci_save_state(pdev); | |
4125 | if (err) | |
4126 | return err; | |
4127 | ||
4128 | pci_disable_device(pdev); | |
4129 | ||
4130 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
4131 | ||
4132 | return 0; | |
4133 | } | |
4134 | ||
04da2cf9 | 4135 | #ifdef CONFIG_PM |
c4e84bde RM |
4136 | static int qlge_resume(struct pci_dev *pdev) |
4137 | { | |
4138 | struct net_device *ndev = pci_get_drvdata(pdev); | |
4139 | struct ql_adapter *qdev = netdev_priv(ndev); | |
4140 | int err; | |
4141 | ||
4142 | pci_set_power_state(pdev, PCI_D0); | |
4143 | pci_restore_state(pdev); | |
4144 | err = pci_enable_device(pdev); | |
4145 | if (err) { | |
4146 | QPRINTK(qdev, IFUP, ERR, "Cannot enable PCI device from suspend\n"); | |
4147 | return err; | |
4148 | } | |
4149 | pci_set_master(pdev); | |
4150 | ||
4151 | pci_enable_wake(pdev, PCI_D3hot, 0); | |
4152 | pci_enable_wake(pdev, PCI_D3cold, 0); | |
4153 | ||
4154 | if (netif_running(ndev)) { | |
4155 | err = ql_adapter_up(qdev); | |
4156 | if (err) | |
4157 | return err; | |
4158 | } | |
4159 | ||
4160 | netif_device_attach(ndev); | |
4161 | ||
4162 | return 0; | |
4163 | } | |
04da2cf9 | 4164 | #endif /* CONFIG_PM */ |
c4e84bde RM |
4165 | |
4166 | static void qlge_shutdown(struct pci_dev *pdev) | |
4167 | { | |
4168 | qlge_suspend(pdev, PMSG_SUSPEND); | |
4169 | } | |
4170 | ||
4171 | static struct pci_driver qlge_driver = { | |
4172 | .name = DRV_NAME, | |
4173 | .id_table = qlge_pci_tbl, | |
4174 | .probe = qlge_probe, | |
4175 | .remove = __devexit_p(qlge_remove), | |
4176 | #ifdef CONFIG_PM | |
4177 | .suspend = qlge_suspend, | |
4178 | .resume = qlge_resume, | |
4179 | #endif | |
4180 | .shutdown = qlge_shutdown, | |
4181 | .err_handler = &qlge_err_handler | |
4182 | }; | |
4183 | ||
4184 | static int __init qlge_init_module(void) | |
4185 | { | |
4186 | return pci_register_driver(&qlge_driver); | |
4187 | } | |
4188 | ||
4189 | static void __exit qlge_exit(void) | |
4190 | { | |
4191 | pci_unregister_driver(&qlge_driver); | |
4192 | } | |
4193 | ||
4194 | module_init(qlge_init_module); | |
4195 | module_exit(qlge_exit); |