Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Adaptec AAC series RAID controller driver | |
3 | * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> | |
4 | * | |
5 | * based on the old aacraid driver that is.. | |
6 | * Adaptec aacraid device driver for Linux. | |
7 | * | |
8 | * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2, or (at your option) | |
13 | * any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; see the file COPYING. If not, write to | |
22 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Module Name: | |
25 | * commsup.c | |
26 | * | |
27 | * Abstract: Contain all routines that are required for FSA host/adapter | |
7c00ffa3 | 28 | * communication. |
1da177e4 LT |
29 | * |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/types.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/pci.h> | |
37 | #include <linux/spinlock.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/completion.h> | |
40 | #include <linux/blkdev.h> | |
164006da | 41 | #include <linux/delay.h> |
fe27381d | 42 | #include <linux/kthread.h> |
6a3670c4 | 43 | #include <linux/interrupt.h> |
8c867b25 | 44 | #include <scsi/scsi.h> |
7c00ffa3 | 45 | #include <scsi/scsi_host.h> |
131256cf | 46 | #include <scsi/scsi_device.h> |
8c867b25 | 47 | #include <scsi/scsi_cmnd.h> |
1da177e4 LT |
48 | #include <asm/semaphore.h> |
49 | ||
50 | #include "aacraid.h" | |
51 | ||
52 | /** | |
53 | * fib_map_alloc - allocate the fib objects | |
54 | * @dev: Adapter to allocate for | |
55 | * | |
56 | * Allocate and map the shared PCI space for the FIB blocks used to | |
57 | * talk to the Adaptec firmware. | |
58 | */ | |
59 | ||
60 | static int fib_map_alloc(struct aac_dev *dev) | |
61 | { | |
7c00ffa3 MH |
62 | dprintk((KERN_INFO |
63 | "allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n", | |
64 | dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue, | |
65 | AAC_NUM_MGT_FIB, &dev->hw_fib_pa)); | |
66 | if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, dev->max_fib_size | |
67 | * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), | |
68 | &dev->hw_fib_pa))==NULL) | |
1da177e4 LT |
69 | return -ENOMEM; |
70 | return 0; | |
71 | } | |
72 | ||
73 | /** | |
bfb35aa8 | 74 | * aac_fib_map_free - free the fib objects |
1da177e4 LT |
75 | * @dev: Adapter to free |
76 | * | |
77 | * Free the PCI mappings and the memory allocated for FIB blocks | |
78 | * on this adapter. | |
79 | */ | |
80 | ||
bfb35aa8 | 81 | void aac_fib_map_free(struct aac_dev *dev) |
1da177e4 | 82 | { |
7c00ffa3 | 83 | pci_free_consistent(dev->pdev, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), dev->hw_fib_va, dev->hw_fib_pa); |
1da177e4 LT |
84 | } |
85 | ||
86 | /** | |
bfb35aa8 | 87 | * aac_fib_setup - setup the fibs |
1da177e4 LT |
88 | * @dev: Adapter to set up |
89 | * | |
90 | * Allocate the PCI space for the fibs, map it and then intialise the | |
91 | * fib area, the unmapped fib data and also the free list | |
92 | */ | |
93 | ||
bfb35aa8 | 94 | int aac_fib_setup(struct aac_dev * dev) |
1da177e4 LT |
95 | { |
96 | struct fib *fibptr; | |
97 | struct hw_fib *hw_fib_va; | |
98 | dma_addr_t hw_fib_pa; | |
99 | int i; | |
7c00ffa3 MH |
100 | |
101 | while (((i = fib_map_alloc(dev)) == -ENOMEM) | |
102 | && (dev->scsi_host_ptr->can_queue > (64 - AAC_NUM_MGT_FIB))) { | |
103 | dev->init->MaxIoCommands = cpu_to_le32((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) >> 1); | |
104 | dev->scsi_host_ptr->can_queue = le32_to_cpu(dev->init->MaxIoCommands) - AAC_NUM_MGT_FIB; | |
105 | } | |
106 | if (i<0) | |
1da177e4 LT |
107 | return -ENOMEM; |
108 | ||
109 | hw_fib_va = dev->hw_fib_va; | |
110 | hw_fib_pa = dev->hw_fib_pa; | |
7c00ffa3 | 111 | memset(hw_fib_va, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); |
1da177e4 LT |
112 | /* |
113 | * Initialise the fibs | |
114 | */ | |
7c00ffa3 | 115 | for (i = 0, fibptr = &dev->fibs[i]; i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++, fibptr++) |
1da177e4 LT |
116 | { |
117 | fibptr->dev = dev; | |
118 | fibptr->hw_fib = hw_fib_va; | |
119 | fibptr->data = (void *) fibptr->hw_fib->data; | |
120 | fibptr->next = fibptr+1; /* Forward chain the fibs */ | |
121 | init_MUTEX_LOCKED(&fibptr->event_wait); | |
122 | spin_lock_init(&fibptr->event_lock); | |
56b58712 | 123 | hw_fib_va->header.XferState = cpu_to_le32(0xffffffff); |
7c00ffa3 | 124 | hw_fib_va->header.SenderSize = cpu_to_le16(dev->max_fib_size); |
1da177e4 | 125 | fibptr->hw_fib_pa = hw_fib_pa; |
7c00ffa3 MH |
126 | hw_fib_va = (struct hw_fib *)((unsigned char *)hw_fib_va + dev->max_fib_size); |
127 | hw_fib_pa = hw_fib_pa + dev->max_fib_size; | |
1da177e4 LT |
128 | } |
129 | /* | |
130 | * Add the fib chain to the free list | |
131 | */ | |
7c00ffa3 | 132 | dev->fibs[dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1].next = NULL; |
1da177e4 LT |
133 | /* |
134 | * Enable this to debug out of queue space | |
135 | */ | |
136 | dev->free_fib = &dev->fibs[0]; | |
137 | return 0; | |
138 | } | |
139 | ||
140 | /** | |
bfb35aa8 | 141 | * aac_fib_alloc - allocate a fib |
1da177e4 LT |
142 | * @dev: Adapter to allocate the fib for |
143 | * | |
144 | * Allocate a fib from the adapter fib pool. If the pool is empty we | |
7c00ffa3 | 145 | * return NULL. |
1da177e4 LT |
146 | */ |
147 | ||
bfb35aa8 | 148 | struct fib *aac_fib_alloc(struct aac_dev *dev) |
1da177e4 LT |
149 | { |
150 | struct fib * fibptr; | |
151 | unsigned long flags; | |
152 | spin_lock_irqsave(&dev->fib_lock, flags); | |
153 | fibptr = dev->free_fib; | |
7c00ffa3 MH |
154 | if(!fibptr){ |
155 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
156 | return fibptr; | |
157 | } | |
1da177e4 LT |
158 | dev->free_fib = fibptr->next; |
159 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
160 | /* | |
161 | * Set the proper node type code and node byte size | |
162 | */ | |
163 | fibptr->type = FSAFS_NTC_FIB_CONTEXT; | |
164 | fibptr->size = sizeof(struct fib); | |
165 | /* | |
166 | * Null out fields that depend on being zero at the start of | |
167 | * each I/O | |
168 | */ | |
169 | fibptr->hw_fib->header.XferState = 0; | |
170 | fibptr->callback = NULL; | |
171 | fibptr->callback_data = NULL; | |
172 | ||
173 | return fibptr; | |
174 | } | |
175 | ||
176 | /** | |
bfb35aa8 | 177 | * aac_fib_free - free a fib |
1da177e4 LT |
178 | * @fibptr: fib to free up |
179 | * | |
180 | * Frees up a fib and places it on the appropriate queue | |
181 | * (either free or timed out) | |
182 | */ | |
183 | ||
bfb35aa8 | 184 | void aac_fib_free(struct fib *fibptr) |
1da177e4 LT |
185 | { |
186 | unsigned long flags; | |
187 | ||
188 | spin_lock_irqsave(&fibptr->dev->fib_lock, flags); | |
189 | if (fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT) { | |
190 | aac_config.fib_timeouts++; | |
191 | fibptr->next = fibptr->dev->timeout_fib; | |
192 | fibptr->dev->timeout_fib = fibptr; | |
193 | } else { | |
194 | if (fibptr->hw_fib->header.XferState != 0) { | |
bfb35aa8 | 195 | printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", |
1da177e4 LT |
196 | (void*)fibptr, |
197 | le32_to_cpu(fibptr->hw_fib->header.XferState)); | |
198 | } | |
199 | fibptr->next = fibptr->dev->free_fib; | |
200 | fibptr->dev->free_fib = fibptr; | |
201 | } | |
202 | spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); | |
203 | } | |
204 | ||
205 | /** | |
bfb35aa8 | 206 | * aac_fib_init - initialise a fib |
1da177e4 LT |
207 | * @fibptr: The fib to initialize |
208 | * | |
209 | * Set up the generic fib fields ready for use | |
210 | */ | |
211 | ||
bfb35aa8 | 212 | void aac_fib_init(struct fib *fibptr) |
1da177e4 LT |
213 | { |
214 | struct hw_fib *hw_fib = fibptr->hw_fib; | |
215 | ||
216 | hw_fib->header.StructType = FIB_MAGIC; | |
7c00ffa3 MH |
217 | hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size); |
218 | hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable); | |
8e0c5ebd | 219 | hw_fib->header.SenderFibAddress = 0; /* Filled in later if needed */ |
1da177e4 | 220 | hw_fib->header.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa); |
7c00ffa3 | 221 | hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size); |
1da177e4 LT |
222 | } |
223 | ||
224 | /** | |
225 | * fib_deallocate - deallocate a fib | |
226 | * @fibptr: fib to deallocate | |
227 | * | |
228 | * Will deallocate and return to the free pool the FIB pointed to by the | |
229 | * caller. | |
230 | */ | |
231 | ||
4833869e | 232 | static void fib_dealloc(struct fib * fibptr) |
1da177e4 LT |
233 | { |
234 | struct hw_fib *hw_fib = fibptr->hw_fib; | |
125e1874 | 235 | BUG_ON(hw_fib->header.StructType != FIB_MAGIC); |
1da177e4 LT |
236 | hw_fib->header.XferState = 0; |
237 | } | |
238 | ||
239 | /* | |
240 | * Commuication primitives define and support the queuing method we use to | |
241 | * support host to adapter commuication. All queue accesses happen through | |
242 | * these routines and are the only routines which have a knowledge of the | |
243 | * how these queues are implemented. | |
244 | */ | |
245 | ||
246 | /** | |
247 | * aac_get_entry - get a queue entry | |
248 | * @dev: Adapter | |
249 | * @qid: Queue Number | |
250 | * @entry: Entry return | |
251 | * @index: Index return | |
252 | * @nonotify: notification control | |
253 | * | |
254 | * With a priority the routine returns a queue entry if the queue has free entries. If the queue | |
255 | * is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is | |
256 | * returned. | |
257 | */ | |
258 | ||
259 | static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) | |
260 | { | |
261 | struct aac_queue * q; | |
bed30de4 | 262 | unsigned long idx; |
1da177e4 LT |
263 | |
264 | /* | |
265 | * All of the queues wrap when they reach the end, so we check | |
266 | * to see if they have reached the end and if they have we just | |
267 | * set the index back to zero. This is a wrap. You could or off | |
268 | * the high bits in all updates but this is a bit faster I think. | |
269 | */ | |
270 | ||
271 | q = &dev->queues->queue[qid]; | |
bed30de4 MH |
272 | |
273 | idx = *index = le32_to_cpu(*(q->headers.producer)); | |
274 | /* Interrupt Moderation, only interrupt for first two entries */ | |
275 | if (idx != le32_to_cpu(*(q->headers.consumer))) { | |
276 | if (--idx == 0) { | |
1640a2c3 | 277 | if (qid == AdapNormCmdQueue) |
bed30de4 | 278 | idx = ADAP_NORM_CMD_ENTRIES; |
1640a2c3 | 279 | else |
bed30de4 MH |
280 | idx = ADAP_NORM_RESP_ENTRIES; |
281 | } | |
282 | if (idx != le32_to_cpu(*(q->headers.consumer))) | |
1da177e4 | 283 | *nonotify = 1; |
bed30de4 | 284 | } |
1da177e4 | 285 | |
1640a2c3 | 286 | if (qid == AdapNormCmdQueue) { |
1da177e4 LT |
287 | if (*index >= ADAP_NORM_CMD_ENTRIES) |
288 | *index = 0; /* Wrap to front of the Producer Queue. */ | |
1640a2c3 | 289 | } else { |
1da177e4 LT |
290 | if (*index >= ADAP_NORM_RESP_ENTRIES) |
291 | *index = 0; /* Wrap to front of the Producer Queue. */ | |
292 | } | |
1da177e4 LT |
293 | |
294 | if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { /* Queue is full */ | |
7c00ffa3 | 295 | printk(KERN_WARNING "Queue %d full, %u outstanding.\n", |
1da177e4 LT |
296 | qid, q->numpending); |
297 | return 0; | |
298 | } else { | |
299 | *entry = q->base + *index; | |
300 | return 1; | |
301 | } | |
302 | } | |
303 | ||
304 | /** | |
305 | * aac_queue_get - get the next free QE | |
306 | * @dev: Adapter | |
307 | * @index: Returned index | |
308 | * @priority: Priority of fib | |
309 | * @fib: Fib to associate with the queue entry | |
310 | * @wait: Wait if queue full | |
311 | * @fibptr: Driver fib object to go with fib | |
312 | * @nonotify: Don't notify the adapter | |
313 | * | |
314 | * Gets the next free QE off the requested priorty adapter command | |
315 | * queue and associates the Fib with the QE. The QE represented by | |
316 | * index is ready to insert on the queue when this routine returns | |
317 | * success. | |
318 | */ | |
319 | ||
320 | static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify) | |
321 | { | |
322 | struct aac_entry * entry = NULL; | |
323 | int map = 0; | |
1da177e4 | 324 | |
1640a2c3 | 325 | if (qid == AdapNormCmdQueue) { |
1da177e4 LT |
326 | /* if no entries wait for some if caller wants to */ |
327 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) | |
328 | { | |
329 | printk(KERN_ERR "GetEntries failed\n"); | |
330 | } | |
331 | /* | |
332 | * Setup queue entry with a command, status and fib mapped | |
333 | */ | |
334 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
335 | map = 1; | |
1640a2c3 | 336 | } else { |
1da177e4 LT |
337 | while(!aac_get_entry(dev, qid, &entry, index, nonotify)) |
338 | { | |
339 | /* if no entries wait for some if caller wants to */ | |
340 | } | |
341 | /* | |
342 | * Setup queue entry with command, status and fib mapped | |
343 | */ | |
344 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
345 | entry->addr = hw_fib->header.SenderFibAddress; | |
346 | /* Restore adapters pointer to the FIB */ | |
347 | hw_fib->header.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */ | |
348 | map = 0; | |
349 | } | |
350 | /* | |
351 | * If MapFib is true than we need to map the Fib and put pointers | |
352 | * in the queue entry. | |
353 | */ | |
354 | if (map) | |
355 | entry->addr = cpu_to_le32(fibptr->hw_fib_pa); | |
356 | return 0; | |
357 | } | |
358 | ||
1da177e4 LT |
359 | /* |
360 | * Define the highest level of host to adapter communication routines. | |
361 | * These routines will support host to adapter FS commuication. These | |
362 | * routines have no knowledge of the commuication method used. This level | |
363 | * sends and receives FIBs. This level has no knowledge of how these FIBs | |
364 | * get passed back and forth. | |
365 | */ | |
366 | ||
367 | /** | |
bfb35aa8 | 368 | * aac_fib_send - send a fib to the adapter |
1da177e4 LT |
369 | * @command: Command to send |
370 | * @fibptr: The fib | |
371 | * @size: Size of fib data area | |
372 | * @priority: Priority of Fib | |
373 | * @wait: Async/sync select | |
374 | * @reply: True if a reply is wanted | |
375 | * @callback: Called with reply | |
376 | * @callback_data: Passed to callback | |
377 | * | |
378 | * Sends the requested FIB to the adapter and optionally will wait for a | |
379 | * response FIB. If the caller does not wish to wait for a response than | |
380 | * an event to wait on must be supplied. This event will be set when a | |
381 | * response FIB is received from the adapter. | |
382 | */ | |
383 | ||
bfb35aa8 MH |
384 | int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, |
385 | int priority, int wait, int reply, fib_callback callback, | |
386 | void *callback_data) | |
1da177e4 | 387 | { |
1da177e4 | 388 | struct aac_dev * dev = fibptr->dev; |
1da177e4 LT |
389 | struct hw_fib * hw_fib = fibptr->hw_fib; |
390 | struct aac_queue * q; | |
391 | unsigned long flags = 0; | |
1640a2c3 MH |
392 | unsigned long qflags; |
393 | ||
1da177e4 LT |
394 | if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) |
395 | return -EBUSY; | |
396 | /* | |
397 | * There are 5 cases with the wait and reponse requested flags. | |
398 | * The only invalid cases are if the caller requests to wait and | |
399 | * does not request a response and if the caller does not want a | |
400 | * response and the Fib is not allocated from pool. If a response | |
401 | * is not requesed the Fib will just be deallocaed by the DPC | |
402 | * routine when the response comes back from the adapter. No | |
403 | * further processing will be done besides deleting the Fib. We | |
404 | * will have a debug mode where the adapter can notify the host | |
405 | * it had a problem and the host can log that fact. | |
406 | */ | |
407 | if (wait && !reply) { | |
408 | return -EINVAL; | |
409 | } else if (!wait && reply) { | |
410 | hw_fib->header.XferState |= cpu_to_le32(Async | ResponseExpected); | |
411 | FIB_COUNTER_INCREMENT(aac_config.AsyncSent); | |
412 | } else if (!wait && !reply) { | |
413 | hw_fib->header.XferState |= cpu_to_le32(NoResponseExpected); | |
414 | FIB_COUNTER_INCREMENT(aac_config.NoResponseSent); | |
415 | } else if (wait && reply) { | |
416 | hw_fib->header.XferState |= cpu_to_le32(ResponseExpected); | |
417 | FIB_COUNTER_INCREMENT(aac_config.NormalSent); | |
418 | } | |
419 | /* | |
420 | * Map the fib into 32bits by using the fib number | |
421 | */ | |
422 | ||
8e0c5ebd | 423 | hw_fib->header.SenderFibAddress = cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2); |
1da177e4 LT |
424 | hw_fib->header.SenderData = (u32)(fibptr - dev->fibs); |
425 | /* | |
426 | * Set FIB state to indicate where it came from and if we want a | |
427 | * response from the adapter. Also load the command from the | |
428 | * caller. | |
429 | * | |
430 | * Map the hw fib pointer as a 32bit value | |
431 | */ | |
432 | hw_fib->header.Command = cpu_to_le16(command); | |
433 | hw_fib->header.XferState |= cpu_to_le32(SentFromHost); | |
434 | fibptr->hw_fib->header.Flags = 0; /* 0 the flags field - internal only*/ | |
435 | /* | |
436 | * Set the size of the Fib we want to send to the adapter | |
437 | */ | |
438 | hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size); | |
439 | if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) { | |
440 | return -EMSGSIZE; | |
441 | } | |
442 | /* | |
443 | * Get a queue entry connect the FIB to it and send an notify | |
444 | * the adapter a command is ready. | |
445 | */ | |
1640a2c3 | 446 | hw_fib->header.XferState |= cpu_to_le32(NormalPriority); |
1da177e4 | 447 | |
1da177e4 LT |
448 | /* |
449 | * Fill in the Callback and CallbackContext if we are not | |
450 | * going to wait. | |
451 | */ | |
452 | if (!wait) { | |
453 | fibptr->callback = callback; | |
454 | fibptr->callback_data = callback_data; | |
455 | } | |
1da177e4 LT |
456 | |
457 | fibptr->done = 0; | |
458 | fibptr->flags = 0; | |
459 | ||
1640a2c3 MH |
460 | FIB_COUNTER_INCREMENT(aac_config.FibsSent); |
461 | ||
1640a2c3 | 462 | dprintk((KERN_DEBUG "Fib contents:.\n")); |
8e0c5ebd MH |
463 | dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command))); |
464 | dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command))); | |
465 | dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState))); | |
1640a2c3 MH |
466 | dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib)); |
467 | dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); | |
468 | dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); | |
469 | ||
c8f7b073 | 470 | if (!dev->queues) |
65101355 | 471 | return -EBUSY; |
1640a2c3 MH |
472 | q = &dev->queues->queue[AdapNormCmdQueue]; |
473 | ||
474 | if(wait) | |
475 | spin_lock_irqsave(&fibptr->event_lock, flags); | |
476 | spin_lock_irqsave(q->lock, qflags); | |
8e0c5ebd MH |
477 | if (dev->new_comm_interface) { |
478 | unsigned long count = 10000000L; /* 50 seconds */ | |
8e0c5ebd MH |
479 | q->numpending++; |
480 | spin_unlock_irqrestore(q->lock, qflags); | |
481 | while (aac_adapter_send(fibptr) != 0) { | |
482 | if (--count == 0) { | |
483 | if (wait) | |
484 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
485 | spin_lock_irqsave(q->lock, qflags); | |
486 | q->numpending--; | |
8e0c5ebd MH |
487 | spin_unlock_irqrestore(q->lock, qflags); |
488 | return -ETIMEDOUT; | |
489 | } | |
490 | udelay(5); | |
491 | } | |
492 | } else { | |
493 | u32 index; | |
494 | unsigned long nointr = 0; | |
495 | aac_queue_get( dev, &index, AdapNormCmdQueue, hw_fib, 1, fibptr, &nointr); | |
496 | ||
8e0c5ebd MH |
497 | q->numpending++; |
498 | *(q->headers.producer) = cpu_to_le32(index + 1); | |
499 | spin_unlock_irqrestore(q->lock, qflags); | |
bfb35aa8 | 500 | dprintk((KERN_DEBUG "aac_fib_send: inserting a queue entry at index %d.\n",index)); |
8e0c5ebd MH |
501 | if (!(nointr & aac_config.irq_mod)) |
502 | aac_adapter_notify(dev, AdapNormCmdQueue); | |
503 | } | |
504 | ||
1da177e4 LT |
505 | /* |
506 | * If the caller wanted us to wait for response wait now. | |
507 | */ | |
508 | ||
509 | if (wait) { | |
510 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
9203344c MH |
511 | /* Only set for first known interruptable command */ |
512 | if (wait < 0) { | |
513 | /* | |
514 | * *VERY* Dangerous to time out a command, the | |
515 | * assumption is made that we have no hope of | |
516 | * functioning because an interrupt routing or other | |
517 | * hardware failure has occurred. | |
518 | */ | |
519 | unsigned long count = 36000000L; /* 3 minutes */ | |
9203344c MH |
520 | while (down_trylock(&fibptr->event_wait)) { |
521 | if (--count == 0) { | |
522 | spin_lock_irqsave(q->lock, qflags); | |
523 | q->numpending--; | |
9203344c MH |
524 | spin_unlock_irqrestore(q->lock, qflags); |
525 | if (wait == -1) { | |
bfb35aa8 | 526 | printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n" |
9203344c MH |
527 | "Usually a result of a PCI interrupt routing problem;\n" |
528 | "update mother board BIOS or consider utilizing one of\n" | |
529 | "the SAFE mode kernel options (acpi, apic etc)\n"); | |
530 | } | |
531 | return -ETIMEDOUT; | |
532 | } | |
533 | udelay(5); | |
534 | } | |
c8f7b073 MH |
535 | } else if (down_interruptible(&fibptr->event_wait)) { |
536 | spin_lock_irqsave(&fibptr->event_lock, flags); | |
537 | if (fibptr->done == 0) { | |
538 | fibptr->done = 2; /* Tell interrupt we aborted */ | |
539 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
540 | return -EINTR; | |
541 | } | |
542 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
543 | } | |
125e1874 | 544 | BUG_ON(fibptr->done == 0); |
1da177e4 LT |
545 | |
546 | if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)){ | |
547 | return -ETIMEDOUT; | |
548 | } else { | |
549 | return 0; | |
550 | } | |
551 | } | |
552 | /* | |
553 | * If the user does not want a response than return success otherwise | |
554 | * return pending | |
555 | */ | |
556 | if (reply) | |
557 | return -EINPROGRESS; | |
558 | else | |
559 | return 0; | |
560 | } | |
561 | ||
562 | /** | |
563 | * aac_consumer_get - get the top of the queue | |
564 | * @dev: Adapter | |
565 | * @q: Queue | |
566 | * @entry: Return entry | |
567 | * | |
568 | * Will return a pointer to the entry on the top of the queue requested that | |
569 | * we are a consumer of, and return the address of the queue entry. It does | |
570 | * not change the state of the queue. | |
571 | */ | |
572 | ||
573 | int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry) | |
574 | { | |
575 | u32 index; | |
576 | int status; | |
577 | if (le32_to_cpu(*q->headers.producer) == le32_to_cpu(*q->headers.consumer)) { | |
578 | status = 0; | |
579 | } else { | |
580 | /* | |
581 | * The consumer index must be wrapped if we have reached | |
582 | * the end of the queue, else we just use the entry | |
583 | * pointed to by the header index | |
584 | */ | |
585 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) | |
586 | index = 0; | |
587 | else | |
588 | index = le32_to_cpu(*q->headers.consumer); | |
589 | *entry = q->base + index; | |
590 | status = 1; | |
591 | } | |
592 | return(status); | |
593 | } | |
594 | ||
595 | /** | |
596 | * aac_consumer_free - free consumer entry | |
597 | * @dev: Adapter | |
598 | * @q: Queue | |
599 | * @qid: Queue ident | |
600 | * | |
601 | * Frees up the current top of the queue we are a consumer of. If the | |
602 | * queue was full notify the producer that the queue is no longer full. | |
603 | */ | |
604 | ||
605 | void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) | |
606 | { | |
607 | int wasfull = 0; | |
608 | u32 notify; | |
609 | ||
610 | if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer)) | |
611 | wasfull = 1; | |
612 | ||
613 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) | |
614 | *q->headers.consumer = cpu_to_le32(1); | |
615 | else | |
616 | *q->headers.consumer = cpu_to_le32(le32_to_cpu(*q->headers.consumer)+1); | |
617 | ||
618 | if (wasfull) { | |
619 | switch (qid) { | |
620 | ||
621 | case HostNormCmdQueue: | |
622 | notify = HostNormCmdNotFull; | |
623 | break; | |
1da177e4 LT |
624 | case HostNormRespQueue: |
625 | notify = HostNormRespNotFull; | |
626 | break; | |
1da177e4 LT |
627 | default: |
628 | BUG(); | |
629 | return; | |
630 | } | |
631 | aac_adapter_notify(dev, notify); | |
632 | } | |
633 | } | |
634 | ||
635 | /** | |
bfb35aa8 | 636 | * aac_fib_adapter_complete - complete adapter issued fib |
1da177e4 LT |
637 | * @fibptr: fib to complete |
638 | * @size: size of fib | |
639 | * | |
640 | * Will do all necessary work to complete a FIB that was sent from | |
641 | * the adapter. | |
642 | */ | |
643 | ||
bfb35aa8 | 644 | int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) |
1da177e4 LT |
645 | { |
646 | struct hw_fib * hw_fib = fibptr->hw_fib; | |
647 | struct aac_dev * dev = fibptr->dev; | |
1640a2c3 | 648 | struct aac_queue * q; |
1da177e4 | 649 | unsigned long nointr = 0; |
1640a2c3 MH |
650 | unsigned long qflags; |
651 | ||
652 | if (hw_fib->header.XferState == 0) { | |
8e0c5ebd MH |
653 | if (dev->new_comm_interface) |
654 | kfree (hw_fib); | |
1da177e4 | 655 | return 0; |
1640a2c3 | 656 | } |
1da177e4 LT |
657 | /* |
658 | * If we plan to do anything check the structure type first. | |
659 | */ | |
660 | if ( hw_fib->header.StructType != FIB_MAGIC ) { | |
8e0c5ebd MH |
661 | if (dev->new_comm_interface) |
662 | kfree (hw_fib); | |
1da177e4 LT |
663 | return -EINVAL; |
664 | } | |
665 | /* | |
666 | * This block handles the case where the adapter had sent us a | |
667 | * command and we have finished processing the command. We | |
668 | * call completeFib when we are done processing the command | |
669 | * and want to send a response back to the adapter. This will | |
670 | * send the completed cdb to the adapter. | |
671 | */ | |
672 | if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) { | |
8e0c5ebd MH |
673 | if (dev->new_comm_interface) { |
674 | kfree (hw_fib); | |
675 | } else { | |
676 | u32 index; | |
677 | hw_fib->header.XferState |= cpu_to_le32(HostProcessed); | |
678 | if (size) { | |
679 | size += sizeof(struct aac_fibhdr); | |
680 | if (size > le16_to_cpu(hw_fib->header.SenderSize)) | |
681 | return -EMSGSIZE; | |
682 | hw_fib->header.Size = cpu_to_le16(size); | |
683 | } | |
684 | q = &dev->queues->queue[AdapNormRespQueue]; | |
685 | spin_lock_irqsave(q->lock, qflags); | |
686 | aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr); | |
687 | *(q->headers.producer) = cpu_to_le32(index + 1); | |
688 | spin_unlock_irqrestore(q->lock, qflags); | |
689 | if (!(nointr & (int)aac_config.irq_mod)) | |
690 | aac_adapter_notify(dev, AdapNormRespQueue); | |
1da177e4 LT |
691 | } |
692 | } | |
693 | else | |
694 | { | |
bfb35aa8 | 695 | printk(KERN_WARNING "aac_fib_adapter_complete: Unknown xferstate detected.\n"); |
1da177e4 LT |
696 | BUG(); |
697 | } | |
698 | return 0; | |
699 | } | |
700 | ||
701 | /** | |
bfb35aa8 | 702 | * aac_fib_complete - fib completion handler |
1da177e4 LT |
703 | * @fib: FIB to complete |
704 | * | |
705 | * Will do all necessary work to complete a FIB. | |
706 | */ | |
707 | ||
bfb35aa8 | 708 | int aac_fib_complete(struct fib *fibptr) |
1da177e4 LT |
709 | { |
710 | struct hw_fib * hw_fib = fibptr->hw_fib; | |
711 | ||
712 | /* | |
713 | * Check for a fib which has already been completed | |
714 | */ | |
715 | ||
716 | if (hw_fib->header.XferState == 0) | |
717 | return 0; | |
718 | /* | |
719 | * If we plan to do anything check the structure type first. | |
720 | */ | |
721 | ||
722 | if (hw_fib->header.StructType != FIB_MAGIC) | |
723 | return -EINVAL; | |
724 | /* | |
725 | * This block completes a cdb which orginated on the host and we | |
726 | * just need to deallocate the cdb or reinit it. At this point the | |
727 | * command is complete that we had sent to the adapter and this | |
728 | * cdb could be reused. | |
729 | */ | |
730 | if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) && | |
731 | (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) | |
732 | { | |
733 | fib_dealloc(fibptr); | |
734 | } | |
735 | else if(hw_fib->header.XferState & cpu_to_le32(SentFromHost)) | |
736 | { | |
737 | /* | |
738 | * This handles the case when the host has aborted the I/O | |
739 | * to the adapter because the adapter is not responding | |
740 | */ | |
741 | fib_dealloc(fibptr); | |
742 | } else if(hw_fib->header.XferState & cpu_to_le32(HostOwned)) { | |
743 | fib_dealloc(fibptr); | |
744 | } else { | |
745 | BUG(); | |
746 | } | |
747 | return 0; | |
748 | } | |
749 | ||
750 | /** | |
751 | * aac_printf - handle printf from firmware | |
752 | * @dev: Adapter | |
753 | * @val: Message info | |
754 | * | |
755 | * Print a message passed to us by the controller firmware on the | |
756 | * Adaptec board | |
757 | */ | |
758 | ||
759 | void aac_printf(struct aac_dev *dev, u32 val) | |
760 | { | |
1da177e4 | 761 | char *cp = dev->printfbuf; |
7c00ffa3 MH |
762 | if (dev->printf_enabled) |
763 | { | |
764 | int length = val & 0xffff; | |
765 | int level = (val >> 16) & 0xffff; | |
766 | ||
767 | /* | |
768 | * The size of the printfbuf is set in port.c | |
769 | * There is no variable or define for it | |
770 | */ | |
771 | if (length > 255) | |
772 | length = 255; | |
773 | if (cp[length] != 0) | |
774 | cp[length] = 0; | |
775 | if (level == LOG_AAC_HIGH_ERROR) | |
1241f359 | 776 | printk(KERN_WARNING "%s:%s", dev->name, cp); |
7c00ffa3 | 777 | else |
1241f359 | 778 | printk(KERN_INFO "%s:%s", dev->name, cp); |
7c00ffa3 | 779 | } |
1da177e4 LT |
780 | memset(cp, 0, 256); |
781 | } | |
782 | ||
131256cf MH |
783 | |
784 | /** | |
785 | * aac_handle_aif - Handle a message from the firmware | |
786 | * @dev: Which adapter this fib is from | |
787 | * @fibptr: Pointer to fibptr from adapter | |
788 | * | |
789 | * This routine handles a driver notify fib from the adapter and | |
790 | * dispatches it to the appropriate routine for handling. | |
791 | */ | |
792 | ||
31876f32 | 793 | #define AIF_SNIFF_TIMEOUT (30*HZ) |
131256cf MH |
794 | static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) |
795 | { | |
796 | struct hw_fib * hw_fib = fibptr->hw_fib; | |
797 | struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; | |
798 | int busy; | |
799 | u32 container; | |
800 | struct scsi_device *device; | |
801 | enum { | |
802 | NOTHING, | |
803 | DELETE, | |
804 | ADD, | |
805 | CHANGE | |
806 | } device_config_needed; | |
807 | ||
808 | /* Sniff for container changes */ | |
809 | ||
c8f7b073 | 810 | if (!dev || !dev->fsa_dev) |
131256cf MH |
811 | return; |
812 | container = (u32)-1; | |
813 | ||
814 | /* | |
815 | * We have set this up to try and minimize the number of | |
816 | * re-configures that take place. As a result of this when | |
817 | * certain AIF's come in we will set a flag waiting for another | |
818 | * type of AIF before setting the re-config flag. | |
819 | */ | |
820 | switch (le32_to_cpu(aifcmd->command)) { | |
821 | case AifCmdDriverNotify: | |
822 | switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) { | |
823 | /* | |
824 | * Morph or Expand complete | |
825 | */ | |
826 | case AifDenMorphComplete: | |
827 | case AifDenVolumeExtendComplete: | |
828 | container = le32_to_cpu(((u32 *)aifcmd->data)[1]); | |
829 | if (container >= dev->maximum_num_containers) | |
830 | break; | |
831 | ||
832 | /* | |
f64a181d | 833 | * Find the scsi_device associated with the SCSI |
131256cf MH |
834 | * address. Make sure we have the right array, and if |
835 | * so set the flag to initiate a new re-config once we | |
836 | * see an AifEnConfigChange AIF come through. | |
837 | */ | |
838 | ||
839 | if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) { | |
840 | device = scsi_device_lookup(dev->scsi_host_ptr, | |
841 | CONTAINER_TO_CHANNEL(container), | |
842 | CONTAINER_TO_ID(container), | |
843 | CONTAINER_TO_LUN(container)); | |
844 | if (device) { | |
845 | dev->fsa_dev[container].config_needed = CHANGE; | |
846 | dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; | |
31876f32 | 847 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
848 | scsi_device_put(device); |
849 | } | |
850 | } | |
851 | } | |
852 | ||
853 | /* | |
854 | * If we are waiting on something and this happens to be | |
855 | * that thing then set the re-configure flag. | |
856 | */ | |
857 | if (container != (u32)-1) { | |
858 | if (container >= dev->maximum_num_containers) | |
859 | break; | |
31876f32 MH |
860 | if ((dev->fsa_dev[container].config_waiting_on == |
861 | le32_to_cpu(*(u32 *)aifcmd->data)) && | |
862 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
863 | dev->fsa_dev[container].config_waiting_on = 0; |
864 | } else for (container = 0; | |
865 | container < dev->maximum_num_containers; ++container) { | |
31876f32 MH |
866 | if ((dev->fsa_dev[container].config_waiting_on == |
867 | le32_to_cpu(*(u32 *)aifcmd->data)) && | |
868 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
869 | dev->fsa_dev[container].config_waiting_on = 0; |
870 | } | |
871 | break; | |
872 | ||
873 | case AifCmdEventNotify: | |
874 | switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) { | |
875 | /* | |
876 | * Add an Array. | |
877 | */ | |
878 | case AifEnAddContainer: | |
879 | container = le32_to_cpu(((u32 *)aifcmd->data)[1]); | |
880 | if (container >= dev->maximum_num_containers) | |
881 | break; | |
882 | dev->fsa_dev[container].config_needed = ADD; | |
883 | dev->fsa_dev[container].config_waiting_on = | |
884 | AifEnConfigChange; | |
31876f32 | 885 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
886 | break; |
887 | ||
888 | /* | |
889 | * Delete an Array. | |
890 | */ | |
891 | case AifEnDeleteContainer: | |
892 | container = le32_to_cpu(((u32 *)aifcmd->data)[1]); | |
893 | if (container >= dev->maximum_num_containers) | |
894 | break; | |
895 | dev->fsa_dev[container].config_needed = DELETE; | |
896 | dev->fsa_dev[container].config_waiting_on = | |
897 | AifEnConfigChange; | |
31876f32 | 898 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
899 | break; |
900 | ||
901 | /* | |
902 | * Container change detected. If we currently are not | |
903 | * waiting on something else, setup to wait on a Config Change. | |
904 | */ | |
905 | case AifEnContainerChange: | |
906 | container = le32_to_cpu(((u32 *)aifcmd->data)[1]); | |
907 | if (container >= dev->maximum_num_containers) | |
908 | break; | |
31876f32 MH |
909 | if (dev->fsa_dev[container].config_waiting_on && |
910 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
911 | break; |
912 | dev->fsa_dev[container].config_needed = CHANGE; | |
913 | dev->fsa_dev[container].config_waiting_on = | |
914 | AifEnConfigChange; | |
31876f32 | 915 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
916 | break; |
917 | ||
918 | case AifEnConfigChange: | |
919 | break; | |
920 | ||
921 | } | |
922 | ||
923 | /* | |
924 | * If we are waiting on something and this happens to be | |
925 | * that thing then set the re-configure flag. | |
926 | */ | |
927 | if (container != (u32)-1) { | |
928 | if (container >= dev->maximum_num_containers) | |
929 | break; | |
31876f32 MH |
930 | if ((dev->fsa_dev[container].config_waiting_on == |
931 | le32_to_cpu(*(u32 *)aifcmd->data)) && | |
932 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
933 | dev->fsa_dev[container].config_waiting_on = 0; |
934 | } else for (container = 0; | |
935 | container < dev->maximum_num_containers; ++container) { | |
31876f32 MH |
936 | if ((dev->fsa_dev[container].config_waiting_on == |
937 | le32_to_cpu(*(u32 *)aifcmd->data)) && | |
938 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
939 | dev->fsa_dev[container].config_waiting_on = 0; |
940 | } | |
941 | break; | |
942 | ||
943 | case AifCmdJobProgress: | |
944 | /* | |
945 | * These are job progress AIF's. When a Clear is being | |
946 | * done on a container it is initially created then hidden from | |
947 | * the OS. When the clear completes we don't get a config | |
948 | * change so we monitor the job status complete on a clear then | |
949 | * wait for a container change. | |
950 | */ | |
951 | ||
952 | if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero)) | |
953 | && ((((u32 *)aifcmd->data)[6] == ((u32 *)aifcmd->data)[5]) | |
954 | || (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess)))) { | |
955 | for (container = 0; | |
956 | container < dev->maximum_num_containers; | |
957 | ++container) { | |
958 | /* | |
959 | * Stomp on all config sequencing for all | |
960 | * containers? | |
961 | */ | |
962 | dev->fsa_dev[container].config_waiting_on = | |
963 | AifEnContainerChange; | |
964 | dev->fsa_dev[container].config_needed = ADD; | |
31876f32 MH |
965 | dev->fsa_dev[container].config_waiting_stamp = |
966 | jiffies; | |
131256cf MH |
967 | } |
968 | } | |
969 | if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero)) | |
970 | && (((u32 *)aifcmd->data)[6] == 0) | |
971 | && (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning))) { | |
972 | for (container = 0; | |
973 | container < dev->maximum_num_containers; | |
974 | ++container) { | |
975 | /* | |
976 | * Stomp on all config sequencing for all | |
977 | * containers? | |
978 | */ | |
979 | dev->fsa_dev[container].config_waiting_on = | |
980 | AifEnContainerChange; | |
981 | dev->fsa_dev[container].config_needed = DELETE; | |
31876f32 MH |
982 | dev->fsa_dev[container].config_waiting_stamp = |
983 | jiffies; | |
131256cf MH |
984 | } |
985 | } | |
986 | break; | |
987 | } | |
988 | ||
989 | device_config_needed = NOTHING; | |
990 | for (container = 0; container < dev->maximum_num_containers; | |
991 | ++container) { | |
31876f32 MH |
992 | if ((dev->fsa_dev[container].config_waiting_on == 0) && |
993 | (dev->fsa_dev[container].config_needed != NOTHING) && | |
994 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) { | |
131256cf MH |
995 | device_config_needed = |
996 | dev->fsa_dev[container].config_needed; | |
997 | dev->fsa_dev[container].config_needed = NOTHING; | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | if (device_config_needed == NOTHING) | |
1002 | return; | |
1003 | ||
1004 | /* | |
1005 | * If we decided that a re-configuration needs to be done, | |
1006 | * schedule it here on the way out the door, please close the door | |
1007 | * behind you. | |
1008 | */ | |
1009 | ||
1010 | busy = 0; | |
1011 | ||
1012 | ||
1013 | /* | |
f64a181d | 1014 | * Find the scsi_device associated with the SCSI address, |
131256cf MH |
1015 | * and mark it as changed, invalidating the cache. This deals |
1016 | * with changes to existing device IDs. | |
1017 | */ | |
1018 | ||
1019 | if (!dev || !dev->scsi_host_ptr) | |
1020 | return; | |
1021 | /* | |
bfb35aa8 | 1022 | * force reload of disk info via aac_probe_container |
131256cf MH |
1023 | */ |
1024 | if ((device_config_needed == CHANGE) | |
1025 | && (dev->fsa_dev[container].valid == 1)) | |
1026 | dev->fsa_dev[container].valid = 2; | |
1027 | if ((device_config_needed == CHANGE) || | |
1028 | (device_config_needed == ADD)) | |
bfb35aa8 | 1029 | aac_probe_container(dev, container); |
131256cf MH |
1030 | device = scsi_device_lookup(dev->scsi_host_ptr, |
1031 | CONTAINER_TO_CHANNEL(container), | |
1032 | CONTAINER_TO_ID(container), | |
1033 | CONTAINER_TO_LUN(container)); | |
1034 | if (device) { | |
1035 | switch (device_config_needed) { | |
1036 | case DELETE: | |
131256cf | 1037 | case CHANGE: |
131256cf MH |
1038 | scsi_rescan_device(&device->sdev_gendev); |
1039 | ||
1040 | default: | |
1041 | break; | |
1042 | } | |
1043 | scsi_device_put(device); | |
1044 | } | |
1045 | if (device_config_needed == ADD) { | |
1046 | scsi_add_device(dev->scsi_host_ptr, | |
1047 | CONTAINER_TO_CHANNEL(container), | |
1048 | CONTAINER_TO_ID(container), | |
1049 | CONTAINER_TO_LUN(container)); | |
1050 | } | |
1051 | ||
1052 | } | |
1053 | ||
8c867b25 MH |
1054 | static int _aac_reset_adapter(struct aac_dev *aac) |
1055 | { | |
1056 | int index, quirks; | |
1057 | u32 ret; | |
1058 | int retval; | |
1059 | struct Scsi_Host *host; | |
1060 | struct scsi_device *dev; | |
1061 | struct scsi_cmnd *command; | |
1062 | struct scsi_cmnd *command_list; | |
1063 | ||
1064 | /* | |
1065 | * Assumptions: | |
1066 | * - host is locked. | |
1067 | * - in_reset is asserted, so no new i/o is getting to the | |
1068 | * card. | |
1069 | * - The card is dead. | |
1070 | */ | |
1071 | host = aac->scsi_host_ptr; | |
1072 | scsi_block_requests(host); | |
1073 | aac_adapter_disable_int(aac); | |
1074 | spin_unlock_irq(host->host_lock); | |
1075 | kthread_stop(aac->thread); | |
1076 | ||
1077 | /* | |
1078 | * If a positive health, means in a known DEAD PANIC | |
1079 | * state and the adapter could be reset to `try again'. | |
1080 | */ | |
1081 | retval = aac_adapter_check_health(aac); | |
1082 | if (retval == 0) | |
1083 | retval = aac_adapter_sync_cmd(aac, IOP_RESET_ALWAYS, | |
1084 | 0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL); | |
1085 | if (retval) | |
1086 | retval = aac_adapter_sync_cmd(aac, IOP_RESET, | |
1087 | 0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL); | |
1088 | ||
1089 | if (retval) | |
1090 | goto out; | |
1091 | if (ret != 0x00000001) { | |
1092 | retval = -ENODEV; | |
1093 | goto out; | |
1094 | } | |
1095 | ||
1096 | index = aac->cardtype; | |
1097 | ||
1098 | /* | |
1099 | * Re-initialize the adapter, first free resources, then carefully | |
1100 | * apply the initialization sequence to come back again. Only risk | |
1101 | * is a change in Firmware dropping cache, it is assumed the caller | |
1102 | * will ensure that i/o is queisced and the card is flushed in that | |
1103 | * case. | |
1104 | */ | |
1105 | aac_fib_map_free(aac); | |
1106 | aac->hw_fib_va = NULL; | |
1107 | aac->hw_fib_pa = 0; | |
1108 | pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys); | |
1109 | aac->comm_addr = NULL; | |
1110 | aac->comm_phys = 0; | |
1111 | kfree(aac->queues); | |
1112 | aac->queues = NULL; | |
1113 | free_irq(aac->pdev->irq, aac); | |
1114 | kfree(aac->fsa_dev); | |
1115 | aac->fsa_dev = NULL; | |
1116 | if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT) { | |
1117 | if (((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK))) || | |
1118 | ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_32BIT_MASK)))) | |
1119 | goto out; | |
1120 | } else { | |
1121 | if (((retval = pci_set_dma_mask(aac->pdev, 0x7FFFFFFFULL))) || | |
1122 | ((retval = pci_set_consistent_dma_mask(aac->pdev, 0x7FFFFFFFULL)))) | |
1123 | goto out; | |
1124 | } | |
1125 | if ((retval = (*(aac_get_driver_ident(index)->init))(aac))) | |
1126 | goto out; | |
1127 | if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT) | |
1128 | if ((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK))) | |
1129 | goto out; | |
1130 | aac->thread = kthread_run(aac_command_thread, aac, aac->name); | |
1131 | if (IS_ERR(aac->thread)) { | |
1132 | retval = PTR_ERR(aac->thread); | |
1133 | goto out; | |
1134 | } | |
1135 | (void)aac_get_adapter_info(aac); | |
1136 | quirks = aac_get_driver_ident(index)->quirks; | |
1137 | if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) { | |
1138 | host->sg_tablesize = 34; | |
1139 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1140 | } | |
1141 | if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) { | |
1142 | host->sg_tablesize = 17; | |
1143 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1144 | } | |
1145 | aac_get_config_status(aac, 1); | |
1146 | aac_get_containers(aac); | |
1147 | /* | |
1148 | * This is where the assumption that the Adapter is quiesced | |
1149 | * is important. | |
1150 | */ | |
1151 | command_list = NULL; | |
1152 | __shost_for_each_device(dev, host) { | |
1153 | unsigned long flags; | |
1154 | spin_lock_irqsave(&dev->list_lock, flags); | |
1155 | list_for_each_entry(command, &dev->cmd_list, list) | |
1156 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1157 | command->SCp.buffer = (struct scatterlist *)command_list; | |
1158 | command_list = command; | |
1159 | } | |
1160 | spin_unlock_irqrestore(&dev->list_lock, flags); | |
1161 | } | |
1162 | while ((command = command_list)) { | |
1163 | command_list = (struct scsi_cmnd *)command->SCp.buffer; | |
1164 | command->SCp.buffer = NULL; | |
1165 | command->result = DID_OK << 16 | |
1166 | | COMMAND_COMPLETE << 8 | |
1167 | | SAM_STAT_TASK_SET_FULL; | |
1168 | command->SCp.phase = AAC_OWNER_ERROR_HANDLER; | |
1169 | command->scsi_done(command); | |
1170 | } | |
1171 | retval = 0; | |
1172 | ||
1173 | out: | |
1174 | aac->in_reset = 0; | |
1175 | scsi_unblock_requests(host); | |
1176 | spin_lock_irq(host->host_lock); | |
1177 | return retval; | |
1178 | } | |
1179 | ||
1180 | int aac_check_health(struct aac_dev * aac) | |
1181 | { | |
1182 | int BlinkLED; | |
1183 | unsigned long time_now, flagv = 0; | |
1184 | struct list_head * entry; | |
1185 | struct Scsi_Host * host; | |
1186 | ||
1187 | /* Extending the scope of fib_lock slightly to protect aac->in_reset */ | |
1188 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1189 | return 0; | |
1190 | ||
1191 | if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) { | |
1192 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1193 | return 0; /* OK */ | |
1194 | } | |
1195 | ||
1196 | aac->in_reset = 1; | |
1197 | ||
1198 | /* Fake up an AIF: | |
1199 | * aac_aifcmd.command = AifCmdEventNotify = 1 | |
1200 | * aac_aifcmd.seqnum = 0xFFFFFFFF | |
1201 | * aac_aifcmd.data[0] = AifEnExpEvent = 23 | |
1202 | * aac_aifcmd.data[1] = AifExeFirmwarePanic = 3 | |
1203 | * aac.aifcmd.data[2] = AifHighPriority = 3 | |
1204 | * aac.aifcmd.data[3] = BlinkLED | |
1205 | */ | |
1206 | ||
1207 | time_now = jiffies/HZ; | |
1208 | entry = aac->fib_list.next; | |
1209 | ||
1210 | /* | |
1211 | * For each Context that is on the | |
1212 | * fibctxList, make a copy of the | |
1213 | * fib, and then set the event to wake up the | |
1214 | * thread that is waiting for it. | |
1215 | */ | |
1216 | while (entry != &aac->fib_list) { | |
1217 | /* | |
1218 | * Extract the fibctx | |
1219 | */ | |
1220 | struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next); | |
1221 | struct hw_fib * hw_fib; | |
1222 | struct fib * fib; | |
1223 | /* | |
1224 | * Check if the queue is getting | |
1225 | * backlogged | |
1226 | */ | |
1227 | if (fibctx->count > 20) { | |
1228 | /* | |
1229 | * It's *not* jiffies folks, | |
1230 | * but jiffies / HZ, so do not | |
1231 | * panic ... | |
1232 | */ | |
1233 | u32 time_last = fibctx->jiffies; | |
1234 | /* | |
1235 | * Has it been > 2 minutes | |
1236 | * since the last read off | |
1237 | * the queue? | |
1238 | */ | |
1239 | if ((time_now - time_last) > aif_timeout) { | |
1240 | entry = entry->next; | |
1241 | aac_close_fib_context(aac, fibctx); | |
1242 | continue; | |
1243 | } | |
1244 | } | |
1245 | /* | |
1246 | * Warning: no sleep allowed while | |
1247 | * holding spinlock | |
1248 | */ | |
1249 | hw_fib = kmalloc(sizeof(struct hw_fib), GFP_ATOMIC); | |
1250 | fib = kmalloc(sizeof(struct fib), GFP_ATOMIC); | |
1251 | if (fib && hw_fib) { | |
1252 | struct aac_aifcmd * aif; | |
1253 | ||
1254 | memset(hw_fib, 0, sizeof(struct hw_fib)); | |
1255 | memset(fib, 0, sizeof(struct fib)); | |
1256 | fib->hw_fib = hw_fib; | |
1257 | fib->dev = aac; | |
1258 | aac_fib_init(fib); | |
1259 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
1260 | fib->size = sizeof (struct fib); | |
1261 | fib->data = hw_fib->data; | |
1262 | aif = (struct aac_aifcmd *)hw_fib->data; | |
1263 | aif->command = cpu_to_le32(AifCmdEventNotify); | |
1264 | aif->seqnum = cpu_to_le32(0xFFFFFFFF); | |
1265 | aif->data[0] = cpu_to_le32(AifEnExpEvent); | |
1266 | aif->data[1] = cpu_to_le32(AifExeFirmwarePanic); | |
1267 | aif->data[2] = cpu_to_le32(AifHighPriority); | |
1268 | aif->data[3] = cpu_to_le32(BlinkLED); | |
1269 | ||
1270 | /* | |
1271 | * Put the FIB onto the | |
1272 | * fibctx's fibs | |
1273 | */ | |
1274 | list_add_tail(&fib->fiblink, &fibctx->fib_list); | |
1275 | fibctx->count++; | |
1276 | /* | |
1277 | * Set the event to wake up the | |
1278 | * thread that will waiting. | |
1279 | */ | |
1280 | up(&fibctx->wait_sem); | |
1281 | } else { | |
1282 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1283 | kfree(fib); | |
1284 | kfree(hw_fib); | |
1285 | } | |
1286 | entry = entry->next; | |
1287 | } | |
1288 | ||
1289 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1290 | ||
1291 | if (BlinkLED < 0) { | |
1292 | printk(KERN_ERR "%s: Host adapter dead %d\n", aac->name, BlinkLED); | |
1293 | goto out; | |
1294 | } | |
1295 | ||
1296 | printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED); | |
1297 | ||
1298 | host = aac->scsi_host_ptr; | |
1299 | spin_lock_irqsave(host->host_lock, flagv); | |
1300 | BlinkLED = _aac_reset_adapter(aac); | |
1301 | spin_unlock_irqrestore(host->host_lock, flagv); | |
1302 | return BlinkLED; | |
1303 | ||
1304 | out: | |
1305 | aac->in_reset = 0; | |
1306 | return BlinkLED; | |
1307 | } | |
1308 | ||
1309 | ||
1da177e4 LT |
1310 | /** |
1311 | * aac_command_thread - command processing thread | |
1312 | * @dev: Adapter to monitor | |
1313 | * | |
1314 | * Waits on the commandready event in it's queue. When the event gets set | |
1315 | * it will pull FIBs off it's queue. It will continue to pull FIBs off | |
1316 | * until the queue is empty. When the queue is empty it will wait for | |
1317 | * more FIBs. | |
1318 | */ | |
1319 | ||
fe27381d | 1320 | int aac_command_thread(void *data) |
1da177e4 | 1321 | { |
fe27381d | 1322 | struct aac_dev *dev = data; |
1da177e4 LT |
1323 | struct hw_fib *hw_fib, *hw_newfib; |
1324 | struct fib *fib, *newfib; | |
1da177e4 LT |
1325 | struct aac_fib_context *fibctx; |
1326 | unsigned long flags; | |
1327 | DECLARE_WAITQUEUE(wait, current); | |
1328 | ||
1329 | /* | |
1330 | * We can only have one thread per adapter for AIF's. | |
1331 | */ | |
1332 | if (dev->aif_thread) | |
1333 | return -EINVAL; | |
fe27381d | 1334 | |
1da177e4 LT |
1335 | /* |
1336 | * Let the DPC know it has a place to send the AIF's to. | |
1337 | */ | |
1338 | dev->aif_thread = 1; | |
2f130980 | 1339 | add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); |
1da177e4 | 1340 | set_current_state(TASK_INTERRUPTIBLE); |
2f130980 | 1341 | dprintk ((KERN_INFO "aac_command_thread start\n")); |
1da177e4 LT |
1342 | while(1) |
1343 | { | |
2f130980 MH |
1344 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1345 | while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) { | |
1da177e4 LT |
1346 | struct list_head *entry; |
1347 | struct aac_aifcmd * aifcmd; | |
1348 | ||
1349 | set_current_state(TASK_RUNNING); | |
2f130980 MH |
1350 | |
1351 | entry = dev->queues->queue[HostNormCmdQueue].cmdq.next; | |
1da177e4 | 1352 | list_del(entry); |
2f130980 MH |
1353 | |
1354 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); | |
1da177e4 LT |
1355 | fib = list_entry(entry, struct fib, fiblink); |
1356 | /* | |
1357 | * We will process the FIB here or pass it to a | |
1358 | * worker thread that is TBD. We Really can't | |
1359 | * do anything at this point since we don't have | |
1360 | * anything defined for this thread to do. | |
1361 | */ | |
1362 | hw_fib = fib->hw_fib; | |
1363 | memset(fib, 0, sizeof(struct fib)); | |
1364 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
1365 | fib->size = sizeof( struct fib ); | |
1366 | fib->hw_fib = hw_fib; | |
1367 | fib->data = hw_fib->data; | |
1368 | fib->dev = dev; | |
1369 | /* | |
1370 | * We only handle AifRequest fibs from the adapter. | |
1371 | */ | |
1372 | aifcmd = (struct aac_aifcmd *) hw_fib->data; | |
1373 | if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) { | |
1374 | /* Handle Driver Notify Events */ | |
131256cf | 1375 | aac_handle_aif(dev, fib); |
56b58712 | 1376 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1377 | aac_fib_adapter_complete(fib, (u16)sizeof(u32)); |
1da177e4 LT |
1378 | } else { |
1379 | struct list_head *entry; | |
1380 | /* The u32 here is important and intended. We are using | |
1381 | 32bit wrapping time to fit the adapter field */ | |
1382 | ||
1383 | u32 time_now, time_last; | |
1384 | unsigned long flagv; | |
2f130980 MH |
1385 | unsigned num; |
1386 | struct hw_fib ** hw_fib_pool, ** hw_fib_p; | |
1387 | struct fib ** fib_pool, ** fib_p; | |
131256cf MH |
1388 | |
1389 | /* Sniff events */ | |
1390 | if ((aifcmd->command == | |
1391 | cpu_to_le32(AifCmdEventNotify)) || | |
1392 | (aifcmd->command == | |
1393 | cpu_to_le32(AifCmdJobProgress))) { | |
1394 | aac_handle_aif(dev, fib); | |
1395 | } | |
1396 | ||
1da177e4 LT |
1397 | time_now = jiffies/HZ; |
1398 | ||
2f130980 MH |
1399 | /* |
1400 | * Warning: no sleep allowed while | |
1401 | * holding spinlock. We take the estimate | |
1402 | * and pre-allocate a set of fibs outside the | |
1403 | * lock. | |
1404 | */ | |
1405 | num = le32_to_cpu(dev->init->AdapterFibsSize) | |
1406 | / sizeof(struct hw_fib); /* some extra */ | |
1407 | spin_lock_irqsave(&dev->fib_lock, flagv); | |
1408 | entry = dev->fib_list.next; | |
1409 | while (entry != &dev->fib_list) { | |
1410 | entry = entry->next; | |
1411 | ++num; | |
1412 | } | |
1413 | spin_unlock_irqrestore(&dev->fib_lock, flagv); | |
1414 | hw_fib_pool = NULL; | |
1415 | fib_pool = NULL; | |
1416 | if (num | |
1417 | && ((hw_fib_pool = kmalloc(sizeof(struct hw_fib *) * num, GFP_KERNEL))) | |
1418 | && ((fib_pool = kmalloc(sizeof(struct fib *) * num, GFP_KERNEL)))) { | |
1419 | hw_fib_p = hw_fib_pool; | |
1420 | fib_p = fib_pool; | |
1421 | while (hw_fib_p < &hw_fib_pool[num]) { | |
1422 | if (!(*(hw_fib_p++) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL))) { | |
1423 | --hw_fib_p; | |
1424 | break; | |
1425 | } | |
1426 | if (!(*(fib_p++) = kmalloc(sizeof(struct fib), GFP_KERNEL))) { | |
1427 | kfree(*(--hw_fib_p)); | |
1428 | break; | |
1429 | } | |
1430 | } | |
1431 | if ((num = hw_fib_p - hw_fib_pool) == 0) { | |
1432 | kfree(fib_pool); | |
1433 | fib_pool = NULL; | |
1434 | kfree(hw_fib_pool); | |
1435 | hw_fib_pool = NULL; | |
1436 | } | |
c9475cb0 | 1437 | } else { |
2f130980 MH |
1438 | kfree(hw_fib_pool); |
1439 | hw_fib_pool = NULL; | |
1440 | } | |
1da177e4 LT |
1441 | spin_lock_irqsave(&dev->fib_lock, flagv); |
1442 | entry = dev->fib_list.next; | |
1443 | /* | |
1444 | * For each Context that is on the | |
1445 | * fibctxList, make a copy of the | |
1446 | * fib, and then set the event to wake up the | |
1447 | * thread that is waiting for it. | |
1448 | */ | |
2f130980 MH |
1449 | hw_fib_p = hw_fib_pool; |
1450 | fib_p = fib_pool; | |
1da177e4 LT |
1451 | while (entry != &dev->fib_list) { |
1452 | /* | |
1453 | * Extract the fibctx | |
1454 | */ | |
1455 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
1456 | /* | |
1457 | * Check if the queue is getting | |
1458 | * backlogged | |
1459 | */ | |
1460 | if (fibctx->count > 20) | |
1461 | { | |
1462 | /* | |
1463 | * It's *not* jiffies folks, | |
1464 | * but jiffies / HZ so do not | |
1465 | * panic ... | |
1466 | */ | |
1467 | time_last = fibctx->jiffies; | |
1468 | /* | |
1469 | * Has it been > 2 minutes | |
1470 | * since the last read off | |
1471 | * the queue? | |
1472 | */ | |
404d9a90 | 1473 | if ((time_now - time_last) > aif_timeout) { |
1da177e4 LT |
1474 | entry = entry->next; |
1475 | aac_close_fib_context(dev, fibctx); | |
1476 | continue; | |
1477 | } | |
1478 | } | |
1479 | /* | |
1480 | * Warning: no sleep allowed while | |
1481 | * holding spinlock | |
1482 | */ | |
2f130980 MH |
1483 | if (hw_fib_p < &hw_fib_pool[num]) { |
1484 | hw_newfib = *hw_fib_p; | |
1485 | *(hw_fib_p++) = NULL; | |
1486 | newfib = *fib_p; | |
1487 | *(fib_p++) = NULL; | |
1da177e4 LT |
1488 | /* |
1489 | * Make the copy of the FIB | |
1490 | */ | |
1491 | memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib)); | |
1492 | memcpy(newfib, fib, sizeof(struct fib)); | |
1493 | newfib->hw_fib = hw_newfib; | |
1494 | /* | |
1495 | * Put the FIB onto the | |
1496 | * fibctx's fibs | |
1497 | */ | |
1498 | list_add_tail(&newfib->fiblink, &fibctx->fib_list); | |
1499 | fibctx->count++; | |
1500 | /* | |
1501 | * Set the event to wake up the | |
2f130980 | 1502 | * thread that is waiting. |
1da177e4 LT |
1503 | */ |
1504 | up(&fibctx->wait_sem); | |
1505 | } else { | |
1506 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1da177e4 LT |
1507 | } |
1508 | entry = entry->next; | |
1509 | } | |
1510 | /* | |
1511 | * Set the status of this FIB | |
1512 | */ | |
56b58712 | 1513 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1514 | aac_fib_adapter_complete(fib, sizeof(u32)); |
1da177e4 | 1515 | spin_unlock_irqrestore(&dev->fib_lock, flagv); |
2f130980 MH |
1516 | /* Free up the remaining resources */ |
1517 | hw_fib_p = hw_fib_pool; | |
1518 | fib_p = fib_pool; | |
1519 | while (hw_fib_p < &hw_fib_pool[num]) { | |
c9475cb0 JJ |
1520 | kfree(*hw_fib_p); |
1521 | kfree(*fib_p); | |
2f130980 MH |
1522 | ++fib_p; |
1523 | ++hw_fib_p; | |
1524 | } | |
c9475cb0 JJ |
1525 | kfree(hw_fib_pool); |
1526 | kfree(fib_pool); | |
1da177e4 | 1527 | } |
1da177e4 | 1528 | kfree(fib); |
2f130980 | 1529 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1530 | } |
1531 | /* | |
1532 | * There are no more AIF's | |
1533 | */ | |
2f130980 | 1534 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1535 | schedule(); |
1536 | ||
fe27381d | 1537 | if (kthread_should_stop()) |
1da177e4 LT |
1538 | break; |
1539 | set_current_state(TASK_INTERRUPTIBLE); | |
1540 | } | |
2f130980 MH |
1541 | if (dev->queues) |
1542 | remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); | |
1da177e4 | 1543 | dev->aif_thread = 0; |
2f130980 | 1544 | return 0; |
1da177e4 | 1545 | } |