Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Adaptec AAC series RAID controller driver | |
fa195afe | 3 | * (c) Copyright 2001 Red Hat Inc. |
1da177e4 LT |
4 | * |
5 | * based on the old aacraid driver that is.. | |
6 | * Adaptec aacraid device driver for Linux. | |
7 | * | |
e8b12f0f MR |
8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) | |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; see the file COPYING. If not, write to | |
23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | * | |
25 | * Module Name: | |
26 | * commsup.c | |
27 | * | |
28 | * Abstract: Contain all routines that are required for FSA host/adapter | |
7c00ffa3 | 29 | * communication. |
1da177e4 LT |
30 | * |
31 | */ | |
32 | ||
33 | #include <linux/kernel.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/types.h> | |
36 | #include <linux/sched.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/spinlock.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/completion.h> | |
41 | #include <linux/blkdev.h> | |
164006da | 42 | #include <linux/delay.h> |
fe27381d | 43 | #include <linux/kthread.h> |
6a3670c4 | 44 | #include <linux/interrupt.h> |
6188e10d | 45 | #include <linux/semaphore.h> |
8c867b25 | 46 | #include <scsi/scsi.h> |
7c00ffa3 | 47 | #include <scsi/scsi_host.h> |
131256cf | 48 | #include <scsi/scsi_device.h> |
8c867b25 | 49 | #include <scsi/scsi_cmnd.h> |
1da177e4 LT |
50 | |
51 | #include "aacraid.h" | |
52 | ||
53 | /** | |
54 | * fib_map_alloc - allocate the fib objects | |
55 | * @dev: Adapter to allocate for | |
56 | * | |
57 | * Allocate and map the shared PCI space for the FIB blocks used to | |
58 | * talk to the Adaptec firmware. | |
59 | */ | |
8ce3eca4 | 60 | |
1da177e4 LT |
61 | static int fib_map_alloc(struct aac_dev *dev) |
62 | { | |
7c00ffa3 MH |
63 | dprintk((KERN_INFO |
64 | "allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n", | |
65 | dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue, | |
66 | AAC_NUM_MGT_FIB, &dev->hw_fib_pa)); | |
e8b12f0f MR |
67 | dev->hw_fib_va = pci_alloc_consistent(dev->pdev, |
68 | (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) | |
69 | * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1), | |
70 | &dev->hw_fib_pa); | |
71 | if (dev->hw_fib_va == NULL) | |
1da177e4 LT |
72 | return -ENOMEM; |
73 | return 0; | |
74 | } | |
75 | ||
76 | /** | |
bfb35aa8 | 77 | * aac_fib_map_free - free the fib objects |
1da177e4 LT |
78 | * @dev: Adapter to free |
79 | * | |
80 | * Free the PCI mappings and the memory allocated for FIB blocks | |
81 | * on this adapter. | |
82 | */ | |
83 | ||
bfb35aa8 | 84 | void aac_fib_map_free(struct aac_dev *dev) |
1da177e4 | 85 | { |
9ad5204d SM |
86 | pci_free_consistent(dev->pdev, |
87 | dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), | |
88 | dev->hw_fib_va, dev->hw_fib_pa); | |
89 | dev->hw_fib_va = NULL; | |
90 | dev->hw_fib_pa = 0; | |
1da177e4 LT |
91 | } |
92 | ||
93 | /** | |
bfb35aa8 | 94 | * aac_fib_setup - setup the fibs |
1da177e4 LT |
95 | * @dev: Adapter to set up |
96 | * | |
b595076a | 97 | * Allocate the PCI space for the fibs, map it and then initialise the |
1da177e4 LT |
98 | * fib area, the unmapped fib data and also the free list |
99 | */ | |
100 | ||
bfb35aa8 | 101 | int aac_fib_setup(struct aac_dev * dev) |
1da177e4 LT |
102 | { |
103 | struct fib *fibptr; | |
a8166a52 | 104 | struct hw_fib *hw_fib; |
1da177e4 LT |
105 | dma_addr_t hw_fib_pa; |
106 | int i; | |
7c00ffa3 MH |
107 | |
108 | while (((i = fib_map_alloc(dev)) == -ENOMEM) | |
109 | && (dev->scsi_host_ptr->can_queue > (64 - AAC_NUM_MGT_FIB))) { | |
110 | dev->init->MaxIoCommands = cpu_to_le32((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) >> 1); | |
111 | dev->scsi_host_ptr->can_queue = le32_to_cpu(dev->init->MaxIoCommands) - AAC_NUM_MGT_FIB; | |
112 | } | |
113 | if (i<0) | |
1da177e4 | 114 | return -ENOMEM; |
8ce3eca4 | 115 | |
e8b12f0f MR |
116 | /* 32 byte alignment for PMC */ |
117 | hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1); | |
118 | dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + | |
119 | (hw_fib_pa - dev->hw_fib_pa)); | |
120 | dev->hw_fib_pa = hw_fib_pa; | |
121 | memset(dev->hw_fib_va, 0, | |
122 | (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) * | |
123 | (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); | |
124 | ||
125 | /* add Xport header */ | |
126 | dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + | |
127 | sizeof(struct aac_fib_xporthdr)); | |
128 | dev->hw_fib_pa += sizeof(struct aac_fib_xporthdr); | |
129 | ||
a8166a52 | 130 | hw_fib = dev->hw_fib_va; |
1da177e4 | 131 | hw_fib_pa = dev->hw_fib_pa; |
1da177e4 LT |
132 | /* |
133 | * Initialise the fibs | |
134 | */ | |
8ce3eca4 SM |
135 | for (i = 0, fibptr = &dev->fibs[i]; |
136 | i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); | |
137 | i++, fibptr++) | |
1da177e4 | 138 | { |
85d22bbf | 139 | fibptr->flags = 0; |
1da177e4 | 140 | fibptr->dev = dev; |
a8166a52 MH |
141 | fibptr->hw_fib_va = hw_fib; |
142 | fibptr->data = (void *) fibptr->hw_fib_va->data; | |
1da177e4 | 143 | fibptr->next = fibptr+1; /* Forward chain the fibs */ |
6de76cfc | 144 | sema_init(&fibptr->event_wait, 0); |
1da177e4 | 145 | spin_lock_init(&fibptr->event_lock); |
a8166a52 MH |
146 | hw_fib->header.XferState = cpu_to_le32(0xffffffff); |
147 | hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size); | |
1da177e4 | 148 | fibptr->hw_fib_pa = hw_fib_pa; |
e8b12f0f MR |
149 | hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + |
150 | dev->max_fib_size + sizeof(struct aac_fib_xporthdr)); | |
151 | hw_fib_pa = hw_fib_pa + | |
152 | dev->max_fib_size + sizeof(struct aac_fib_xporthdr); | |
1da177e4 LT |
153 | } |
154 | /* | |
155 | * Add the fib chain to the free list | |
156 | */ | |
7c00ffa3 | 157 | dev->fibs[dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1].next = NULL; |
1da177e4 LT |
158 | /* |
159 | * Enable this to debug out of queue space | |
160 | */ | |
161 | dev->free_fib = &dev->fibs[0]; | |
162 | return 0; | |
163 | } | |
164 | ||
165 | /** | |
bfb35aa8 | 166 | * aac_fib_alloc - allocate a fib |
1da177e4 LT |
167 | * @dev: Adapter to allocate the fib for |
168 | * | |
169 | * Allocate a fib from the adapter fib pool. If the pool is empty we | |
7c00ffa3 | 170 | * return NULL. |
1da177e4 | 171 | */ |
8ce3eca4 | 172 | |
bfb35aa8 | 173 | struct fib *aac_fib_alloc(struct aac_dev *dev) |
1da177e4 LT |
174 | { |
175 | struct fib * fibptr; | |
176 | unsigned long flags; | |
177 | spin_lock_irqsave(&dev->fib_lock, flags); | |
8ce3eca4 | 178 | fibptr = dev->free_fib; |
7c00ffa3 MH |
179 | if(!fibptr){ |
180 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
181 | return fibptr; | |
182 | } | |
1da177e4 LT |
183 | dev->free_fib = fibptr->next; |
184 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
185 | /* | |
186 | * Set the proper node type code and node byte size | |
187 | */ | |
188 | fibptr->type = FSAFS_NTC_FIB_CONTEXT; | |
189 | fibptr->size = sizeof(struct fib); | |
190 | /* | |
191 | * Null out fields that depend on being zero at the start of | |
192 | * each I/O | |
193 | */ | |
a8166a52 | 194 | fibptr->hw_fib_va->header.XferState = 0; |
b6ef70f3 | 195 | fibptr->flags = 0; |
1da177e4 LT |
196 | fibptr->callback = NULL; |
197 | fibptr->callback_data = NULL; | |
198 | ||
199 | return fibptr; | |
200 | } | |
201 | ||
202 | /** | |
bfb35aa8 | 203 | * aac_fib_free - free a fib |
1da177e4 LT |
204 | * @fibptr: fib to free up |
205 | * | |
206 | * Frees up a fib and places it on the appropriate queue | |
1da177e4 | 207 | */ |
8ce3eca4 | 208 | |
bfb35aa8 | 209 | void aac_fib_free(struct fib *fibptr) |
1da177e4 | 210 | { |
cacb6dc3 PNRCEH |
211 | unsigned long flags, flagsv; |
212 | ||
213 | spin_lock_irqsave(&fibptr->event_lock, flagsv); | |
214 | if (fibptr->done == 2) { | |
215 | spin_unlock_irqrestore(&fibptr->event_lock, flagsv); | |
216 | return; | |
217 | } | |
218 | spin_unlock_irqrestore(&fibptr->event_lock, flagsv); | |
1da177e4 LT |
219 | |
220 | spin_lock_irqsave(&fibptr->dev->fib_lock, flags); | |
03d44337 | 221 | if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 222 | aac_config.fib_timeouts++; |
03d44337 MH |
223 | if (fibptr->hw_fib_va->header.XferState != 0) { |
224 | printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", | |
225 | (void*)fibptr, | |
226 | le32_to_cpu(fibptr->hw_fib_va->header.XferState)); | |
227 | } | |
228 | fibptr->next = fibptr->dev->free_fib; | |
229 | fibptr->dev->free_fib = fibptr; | |
1da177e4 LT |
230 | spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); |
231 | } | |
232 | ||
233 | /** | |
bfb35aa8 | 234 | * aac_fib_init - initialise a fib |
1da177e4 | 235 | * @fibptr: The fib to initialize |
8ce3eca4 | 236 | * |
1da177e4 LT |
237 | * Set up the generic fib fields ready for use |
238 | */ | |
8ce3eca4 | 239 | |
bfb35aa8 | 240 | void aac_fib_init(struct fib *fibptr) |
1da177e4 | 241 | { |
a8166a52 | 242 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
1da177e4 | 243 | |
85d22bbf | 244 | memset(&hw_fib->header, 0, sizeof(struct aac_fibhdr)); |
1da177e4 | 245 | hw_fib->header.StructType = FIB_MAGIC; |
7c00ffa3 MH |
246 | hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size); |
247 | hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable); | |
85d22bbf | 248 | hw_fib->header.u.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa); |
7c00ffa3 | 249 | hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size); |
1da177e4 LT |
250 | } |
251 | ||
252 | /** | |
253 | * fib_deallocate - deallocate a fib | |
254 | * @fibptr: fib to deallocate | |
255 | * | |
256 | * Will deallocate and return to the free pool the FIB pointed to by the | |
257 | * caller. | |
258 | */ | |
8ce3eca4 | 259 | |
4833869e | 260 | static void fib_dealloc(struct fib * fibptr) |
1da177e4 | 261 | { |
a8166a52 | 262 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
8ce3eca4 | 263 | hw_fib->header.XferState = 0; |
1da177e4 LT |
264 | } |
265 | ||
266 | /* | |
267 | * Commuication primitives define and support the queuing method we use to | |
268 | * support host to adapter commuication. All queue accesses happen through | |
269 | * these routines and are the only routines which have a knowledge of the | |
270 | * how these queues are implemented. | |
271 | */ | |
8ce3eca4 | 272 | |
1da177e4 LT |
273 | /** |
274 | * aac_get_entry - get a queue entry | |
275 | * @dev: Adapter | |
276 | * @qid: Queue Number | |
277 | * @entry: Entry return | |
278 | * @index: Index return | |
279 | * @nonotify: notification control | |
280 | * | |
281 | * With a priority the routine returns a queue entry if the queue has free entries. If the queue | |
282 | * is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is | |
283 | * returned. | |
284 | */ | |
8ce3eca4 | 285 | |
1da177e4 LT |
286 | static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) |
287 | { | |
288 | struct aac_queue * q; | |
bed30de4 | 289 | unsigned long idx; |
1da177e4 LT |
290 | |
291 | /* | |
292 | * All of the queues wrap when they reach the end, so we check | |
293 | * to see if they have reached the end and if they have we just | |
294 | * set the index back to zero. This is a wrap. You could or off | |
295 | * the high bits in all updates but this is a bit faster I think. | |
296 | */ | |
297 | ||
298 | q = &dev->queues->queue[qid]; | |
bed30de4 MH |
299 | |
300 | idx = *index = le32_to_cpu(*(q->headers.producer)); | |
301 | /* Interrupt Moderation, only interrupt for first two entries */ | |
302 | if (idx != le32_to_cpu(*(q->headers.consumer))) { | |
303 | if (--idx == 0) { | |
1640a2c3 | 304 | if (qid == AdapNormCmdQueue) |
bed30de4 | 305 | idx = ADAP_NORM_CMD_ENTRIES; |
1640a2c3 | 306 | else |
bed30de4 MH |
307 | idx = ADAP_NORM_RESP_ENTRIES; |
308 | } | |
309 | if (idx != le32_to_cpu(*(q->headers.consumer))) | |
8ce3eca4 | 310 | *nonotify = 1; |
bed30de4 | 311 | } |
1da177e4 | 312 | |
1640a2c3 | 313 | if (qid == AdapNormCmdQueue) { |
8ce3eca4 | 314 | if (*index >= ADAP_NORM_CMD_ENTRIES) |
1da177e4 | 315 | *index = 0; /* Wrap to front of the Producer Queue. */ |
1640a2c3 | 316 | } else { |
8ce3eca4 | 317 | if (*index >= ADAP_NORM_RESP_ENTRIES) |
1da177e4 LT |
318 | *index = 0; /* Wrap to front of the Producer Queue. */ |
319 | } | |
1da177e4 | 320 | |
8ce3eca4 SM |
321 | /* Queue is full */ |
322 | if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { | |
7c00ffa3 | 323 | printk(KERN_WARNING "Queue %d full, %u outstanding.\n", |
1da177e4 LT |
324 | qid, q->numpending); |
325 | return 0; | |
326 | } else { | |
8ce3eca4 | 327 | *entry = q->base + *index; |
1da177e4 LT |
328 | return 1; |
329 | } | |
8ce3eca4 | 330 | } |
1da177e4 LT |
331 | |
332 | /** | |
333 | * aac_queue_get - get the next free QE | |
334 | * @dev: Adapter | |
335 | * @index: Returned index | |
336 | * @priority: Priority of fib | |
337 | * @fib: Fib to associate with the queue entry | |
338 | * @wait: Wait if queue full | |
339 | * @fibptr: Driver fib object to go with fib | |
340 | * @nonotify: Don't notify the adapter | |
341 | * | |
342 | * Gets the next free QE off the requested priorty adapter command | |
343 | * queue and associates the Fib with the QE. The QE represented by | |
344 | * index is ready to insert on the queue when this routine returns | |
345 | * success. | |
346 | */ | |
347 | ||
28713324 | 348 | 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) |
1da177e4 LT |
349 | { |
350 | struct aac_entry * entry = NULL; | |
351 | int map = 0; | |
8ce3eca4 | 352 | |
1640a2c3 | 353 | if (qid == AdapNormCmdQueue) { |
1da177e4 | 354 | /* if no entries wait for some if caller wants to */ |
8ce3eca4 | 355 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
356 | printk(KERN_ERR "GetEntries failed\n"); |
357 | } | |
8ce3eca4 SM |
358 | /* |
359 | * Setup queue entry with a command, status and fib mapped | |
360 | */ | |
361 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
362 | map = 1; | |
1640a2c3 | 363 | } else { |
8ce3eca4 | 364 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
365 | /* if no entries wait for some if caller wants to */ |
366 | } | |
8ce3eca4 SM |
367 | /* |
368 | * Setup queue entry with command, status and fib mapped | |
369 | */ | |
370 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
371 | entry->addr = hw_fib->header.SenderFibAddress; | |
372 | /* Restore adapters pointer to the FIB */ | |
85d22bbf | 373 | hw_fib->header.u.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */ |
8ce3eca4 | 374 | map = 0; |
1da177e4 LT |
375 | } |
376 | /* | |
377 | * If MapFib is true than we need to map the Fib and put pointers | |
378 | * in the queue entry. | |
379 | */ | |
380 | if (map) | |
381 | entry->addr = cpu_to_le32(fibptr->hw_fib_pa); | |
382 | return 0; | |
383 | } | |
384 | ||
1da177e4 | 385 | /* |
8ce3eca4 SM |
386 | * Define the highest level of host to adapter communication routines. |
387 | * These routines will support host to adapter FS commuication. These | |
1da177e4 LT |
388 | * routines have no knowledge of the commuication method used. This level |
389 | * sends and receives FIBs. This level has no knowledge of how these FIBs | |
390 | * get passed back and forth. | |
391 | */ | |
392 | ||
393 | /** | |
bfb35aa8 | 394 | * aac_fib_send - send a fib to the adapter |
1da177e4 LT |
395 | * @command: Command to send |
396 | * @fibptr: The fib | |
397 | * @size: Size of fib data area | |
398 | * @priority: Priority of Fib | |
399 | * @wait: Async/sync select | |
400 | * @reply: True if a reply is wanted | |
401 | * @callback: Called with reply | |
402 | * @callback_data: Passed to callback | |
403 | * | |
404 | * Sends the requested FIB to the adapter and optionally will wait for a | |
405 | * response FIB. If the caller does not wish to wait for a response than | |
406 | * an event to wait on must be supplied. This event will be set when a | |
407 | * response FIB is received from the adapter. | |
408 | */ | |
8ce3eca4 | 409 | |
bfb35aa8 MH |
410 | int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, |
411 | int priority, int wait, int reply, fib_callback callback, | |
412 | void *callback_data) | |
1da177e4 | 413 | { |
1da177e4 | 414 | struct aac_dev * dev = fibptr->dev; |
a8166a52 | 415 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 416 | unsigned long flags = 0; |
1640a2c3 | 417 | unsigned long qflags; |
cacb6dc3 | 418 | unsigned long mflags = 0; |
11604612 | 419 | unsigned long sflags = 0; |
cacb6dc3 | 420 | |
1640a2c3 | 421 | |
1da177e4 LT |
422 | if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) |
423 | return -EBUSY; | |
424 | /* | |
25985edc | 425 | * There are 5 cases with the wait and response requested flags. |
1da177e4 LT |
426 | * The only invalid cases are if the caller requests to wait and |
427 | * does not request a response and if the caller does not want a | |
428 | * response and the Fib is not allocated from pool. If a response | |
429 | * is not requesed the Fib will just be deallocaed by the DPC | |
430 | * routine when the response comes back from the adapter. No | |
8ce3eca4 | 431 | * further processing will be done besides deleting the Fib. We |
1da177e4 LT |
432 | * will have a debug mode where the adapter can notify the host |
433 | * it had a problem and the host can log that fact. | |
434 | */ | |
b6ef70f3 | 435 | fibptr->flags = 0; |
1da177e4 LT |
436 | if (wait && !reply) { |
437 | return -EINVAL; | |
438 | } else if (!wait && reply) { | |
439 | hw_fib->header.XferState |= cpu_to_le32(Async | ResponseExpected); | |
440 | FIB_COUNTER_INCREMENT(aac_config.AsyncSent); | |
441 | } else if (!wait && !reply) { | |
442 | hw_fib->header.XferState |= cpu_to_le32(NoResponseExpected); | |
443 | FIB_COUNTER_INCREMENT(aac_config.NoResponseSent); | |
444 | } else if (wait && reply) { | |
445 | hw_fib->header.XferState |= cpu_to_le32(ResponseExpected); | |
446 | FIB_COUNTER_INCREMENT(aac_config.NormalSent); | |
8ce3eca4 | 447 | } |
1da177e4 LT |
448 | /* |
449 | * Map the fib into 32bits by using the fib number | |
450 | */ | |
451 | ||
8e0c5ebd | 452 | hw_fib->header.SenderFibAddress = cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2); |
85d22bbf | 453 | hw_fib->header.Handle = (u32)(fibptr - dev->fibs) + 1; |
1da177e4 LT |
454 | /* |
455 | * Set FIB state to indicate where it came from and if we want a | |
456 | * response from the adapter. Also load the command from the | |
457 | * caller. | |
458 | * | |
459 | * Map the hw fib pointer as a 32bit value | |
460 | */ | |
461 | hw_fib->header.Command = cpu_to_le16(command); | |
462 | hw_fib->header.XferState |= cpu_to_le32(SentFromHost); | |
1da177e4 LT |
463 | /* |
464 | * Set the size of the Fib we want to send to the adapter | |
465 | */ | |
466 | hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size); | |
467 | if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) { | |
468 | return -EMSGSIZE; | |
8ce3eca4 | 469 | } |
1da177e4 LT |
470 | /* |
471 | * Get a queue entry connect the FIB to it and send an notify | |
472 | * the adapter a command is ready. | |
473 | */ | |
1640a2c3 | 474 | hw_fib->header.XferState |= cpu_to_le32(NormalPriority); |
1da177e4 | 475 | |
1da177e4 LT |
476 | /* |
477 | * Fill in the Callback and CallbackContext if we are not | |
478 | * going to wait. | |
479 | */ | |
480 | if (!wait) { | |
481 | fibptr->callback = callback; | |
482 | fibptr->callback_data = callback_data; | |
b6ef70f3 | 483 | fibptr->flags = FIB_CONTEXT_FLAG; |
1da177e4 | 484 | } |
1da177e4 LT |
485 | |
486 | fibptr->done = 0; | |
1da177e4 | 487 | |
1640a2c3 MH |
488 | FIB_COUNTER_INCREMENT(aac_config.FibsSent); |
489 | ||
1640a2c3 | 490 | dprintk((KERN_DEBUG "Fib contents:.\n")); |
8e0c5ebd MH |
491 | dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command))); |
492 | dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command))); | |
493 | dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState))); | |
a8166a52 | 494 | dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib_va)); |
1640a2c3 MH |
495 | dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); |
496 | dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); | |
497 | ||
c8f7b073 | 498 | if (!dev->queues) |
65101355 | 499 | return -EBUSY; |
1640a2c3 | 500 | |
cacb6dc3 PNRCEH |
501 | if (wait) { |
502 | ||
503 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
504 | if (dev->management_fib_count >= AAC_NUM_MGT_FIB) { | |
505 | printk(KERN_INFO "No management Fibs Available:%d\n", | |
506 | dev->management_fib_count); | |
507 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
508 | return -EBUSY; | |
509 | } | |
510 | dev->management_fib_count++; | |
511 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
1640a2c3 | 512 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 PNRCEH |
513 | } |
514 | ||
11604612 MR |
515 | if (dev->sync_mode) { |
516 | if (wait) | |
517 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
518 | spin_lock_irqsave(&dev->sync_lock, sflags); | |
519 | if (dev->sync_fib) { | |
520 | list_add_tail(&fibptr->fiblink, &dev->sync_fib_list); | |
521 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
522 | } else { | |
523 | dev->sync_fib = fibptr; | |
524 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
525 | aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, | |
526 | (u32)fibptr->hw_fib_pa, 0, 0, 0, 0, 0, | |
527 | NULL, NULL, NULL, NULL, NULL); | |
528 | } | |
529 | if (wait) { | |
530 | fibptr->flags |= FIB_CONTEXT_FLAG_WAIT; | |
531 | if (down_interruptible(&fibptr->event_wait)) { | |
532 | fibptr->flags &= ~FIB_CONTEXT_FLAG_WAIT; | |
533 | return -EFAULT; | |
534 | } | |
535 | return 0; | |
536 | } | |
537 | return -EINPROGRESS; | |
538 | } | |
539 | ||
cacb6dc3 PNRCEH |
540 | if (aac_adapter_deliver(fibptr) != 0) { |
541 | printk(KERN_ERR "aac_fib_send: returned -EBUSY\n"); | |
542 | if (wait) { | |
543 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
544 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
545 | dev->management_fib_count--; | |
546 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
547 | } | |
548 | return -EBUSY; | |
549 | } | |
550 | ||
8e0c5ebd | 551 | |
1da177e4 | 552 | /* |
8ce3eca4 | 553 | * If the caller wanted us to wait for response wait now. |
1da177e4 | 554 | */ |
8ce3eca4 | 555 | |
1da177e4 LT |
556 | if (wait) { |
557 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
9203344c MH |
558 | /* Only set for first known interruptable command */ |
559 | if (wait < 0) { | |
560 | /* | |
561 | * *VERY* Dangerous to time out a command, the | |
562 | * assumption is made that we have no hope of | |
563 | * functioning because an interrupt routing or other | |
564 | * hardware failure has occurred. | |
565 | */ | |
30002f1c | 566 | unsigned long timeout = jiffies + (180 * HZ); /* 3 minutes */ |
9203344c | 567 | while (down_trylock(&fibptr->event_wait)) { |
33524b70 | 568 | int blink; |
30002f1c | 569 | if (time_is_before_eq_jiffies(timeout)) { |
28713324 | 570 | struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue]; |
9203344c MH |
571 | spin_lock_irqsave(q->lock, qflags); |
572 | q->numpending--; | |
9203344c MH |
573 | spin_unlock_irqrestore(q->lock, qflags); |
574 | if (wait == -1) { | |
bfb35aa8 | 575 | printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n" |
9203344c MH |
576 | "Usually a result of a PCI interrupt routing problem;\n" |
577 | "update mother board BIOS or consider utilizing one of\n" | |
578 | "the SAFE mode kernel options (acpi, apic etc)\n"); | |
579 | } | |
580 | return -ETIMEDOUT; | |
581 | } | |
33524b70 MH |
582 | if ((blink = aac_adapter_check_health(dev)) > 0) { |
583 | if (wait == -1) { | |
584 | printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n" | |
585 | "Usually a result of a serious unrecoverable hardware problem\n", | |
586 | blink); | |
587 | } | |
588 | return -EFAULT; | |
589 | } | |
30002f1c BC |
590 | /* We used to udelay() here but that absorbed |
591 | * a CPU when a timeout occured. Not very | |
592 | * useful. */ | |
593 | cpu_relax(); | |
9203344c | 594 | } |
0462590e | 595 | } else if (down_interruptible(&fibptr->event_wait)) { |
cacb6dc3 PNRCEH |
596 | /* Do nothing ... satisfy |
597 | * down_interruptible must_check */ | |
e6990c64 | 598 | } |
cacb6dc3 | 599 | |
33bb3b29 | 600 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 | 601 | if (fibptr->done == 0) { |
33bb3b29 | 602 | fibptr->done = 2; /* Tell interrupt we aborted */ |
c8f7b073 | 603 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
cacb6dc3 | 604 | return -ERESTARTSYS; |
c8f7b073 | 605 | } |
33bb3b29 | 606 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
125e1874 | 607 | BUG_ON(fibptr->done == 0); |
8ce3eca4 | 608 | |
912d4e88 | 609 | if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 610 | return -ETIMEDOUT; |
912d4e88 | 611 | return 0; |
1da177e4 LT |
612 | } |
613 | /* | |
614 | * If the user does not want a response than return success otherwise | |
615 | * return pending | |
616 | */ | |
617 | if (reply) | |
618 | return -EINPROGRESS; | |
619 | else | |
620 | return 0; | |
621 | } | |
622 | ||
8ce3eca4 | 623 | /** |
1da177e4 LT |
624 | * aac_consumer_get - get the top of the queue |
625 | * @dev: Adapter | |
626 | * @q: Queue | |
627 | * @entry: Return entry | |
628 | * | |
629 | * Will return a pointer to the entry on the top of the queue requested that | |
8ce3eca4 SM |
630 | * we are a consumer of, and return the address of the queue entry. It does |
631 | * not change the state of the queue. | |
1da177e4 LT |
632 | */ |
633 | ||
634 | int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry) | |
635 | { | |
636 | u32 index; | |
637 | int status; | |
638 | if (le32_to_cpu(*q->headers.producer) == le32_to_cpu(*q->headers.consumer)) { | |
639 | status = 0; | |
640 | } else { | |
641 | /* | |
642 | * The consumer index must be wrapped if we have reached | |
643 | * the end of the queue, else we just use the entry | |
644 | * pointed to by the header index | |
645 | */ | |
8ce3eca4 SM |
646 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
647 | index = 0; | |
1da177e4 | 648 | else |
8ce3eca4 | 649 | index = le32_to_cpu(*q->headers.consumer); |
1da177e4 LT |
650 | *entry = q->base + index; |
651 | status = 1; | |
652 | } | |
653 | return(status); | |
654 | } | |
655 | ||
656 | /** | |
657 | * aac_consumer_free - free consumer entry | |
658 | * @dev: Adapter | |
659 | * @q: Queue | |
660 | * @qid: Queue ident | |
661 | * | |
662 | * Frees up the current top of the queue we are a consumer of. If the | |
663 | * queue was full notify the producer that the queue is no longer full. | |
664 | */ | |
665 | ||
666 | void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) | |
667 | { | |
668 | int wasfull = 0; | |
669 | u32 notify; | |
670 | ||
671 | if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer)) | |
672 | wasfull = 1; | |
8ce3eca4 | 673 | |
1da177e4 LT |
674 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
675 | *q->headers.consumer = cpu_to_le32(1); | |
676 | else | |
36b8dd1b | 677 | le32_add_cpu(q->headers.consumer, 1); |
8ce3eca4 | 678 | |
1da177e4 LT |
679 | if (wasfull) { |
680 | switch (qid) { | |
681 | ||
682 | case HostNormCmdQueue: | |
683 | notify = HostNormCmdNotFull; | |
684 | break; | |
1da177e4 LT |
685 | case HostNormRespQueue: |
686 | notify = HostNormRespNotFull; | |
687 | break; | |
1da177e4 LT |
688 | default: |
689 | BUG(); | |
690 | return; | |
691 | } | |
692 | aac_adapter_notify(dev, notify); | |
693 | } | |
8ce3eca4 | 694 | } |
1da177e4 LT |
695 | |
696 | /** | |
bfb35aa8 | 697 | * aac_fib_adapter_complete - complete adapter issued fib |
1da177e4 LT |
698 | * @fibptr: fib to complete |
699 | * @size: size of fib | |
700 | * | |
701 | * Will do all necessary work to complete a FIB that was sent from | |
702 | * the adapter. | |
703 | */ | |
704 | ||
bfb35aa8 | 705 | int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) |
1da177e4 | 706 | { |
a8166a52 | 707 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 708 | struct aac_dev * dev = fibptr->dev; |
1640a2c3 | 709 | struct aac_queue * q; |
1da177e4 | 710 | unsigned long nointr = 0; |
1640a2c3 MH |
711 | unsigned long qflags; |
712 | ||
85d22bbf MR |
713 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
714 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { | |
e8b12f0f MR |
715 | kfree(hw_fib); |
716 | return 0; | |
717 | } | |
718 | ||
1640a2c3 | 719 | if (hw_fib->header.XferState == 0) { |
28713324 | 720 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 721 | kfree(hw_fib); |
8ce3eca4 | 722 | return 0; |
1640a2c3 | 723 | } |
1da177e4 LT |
724 | /* |
725 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 726 | */ |
85d22bbf MR |
727 | if (hw_fib->header.StructType != FIB_MAGIC && |
728 | hw_fib->header.StructType != FIB_MAGIC2 && | |
729 | hw_fib->header.StructType != FIB_MAGIC2_64) { | |
28713324 | 730 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 731 | kfree(hw_fib); |
8ce3eca4 | 732 | return -EINVAL; |
1da177e4 LT |
733 | } |
734 | /* | |
735 | * This block handles the case where the adapter had sent us a | |
736 | * command and we have finished processing the command. We | |
8ce3eca4 SM |
737 | * call completeFib when we are done processing the command |
738 | * and want to send a response back to the adapter. This will | |
1da177e4 LT |
739 | * send the completed cdb to the adapter. |
740 | */ | |
741 | if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) { | |
28713324 | 742 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
8e0c5ebd MH |
743 | kfree (hw_fib); |
744 | } else { | |
8ce3eca4 SM |
745 | u32 index; |
746 | hw_fib->header.XferState |= cpu_to_le32(HostProcessed); | |
8e0c5ebd MH |
747 | if (size) { |
748 | size += sizeof(struct aac_fibhdr); | |
8ce3eca4 | 749 | if (size > le16_to_cpu(hw_fib->header.SenderSize)) |
8e0c5ebd MH |
750 | return -EMSGSIZE; |
751 | hw_fib->header.Size = cpu_to_le16(size); | |
752 | } | |
753 | q = &dev->queues->queue[AdapNormRespQueue]; | |
754 | spin_lock_irqsave(q->lock, qflags); | |
755 | aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr); | |
756 | *(q->headers.producer) = cpu_to_le32(index + 1); | |
757 | spin_unlock_irqrestore(q->lock, qflags); | |
758 | if (!(nointr & (int)aac_config.irq_mod)) | |
759 | aac_adapter_notify(dev, AdapNormRespQueue); | |
1da177e4 | 760 | } |
8ce3eca4 SM |
761 | } else { |
762 | printk(KERN_WARNING "aac_fib_adapter_complete: " | |
763 | "Unknown xferstate detected.\n"); | |
764 | BUG(); | |
1da177e4 | 765 | } |
1da177e4 LT |
766 | return 0; |
767 | } | |
768 | ||
769 | /** | |
bfb35aa8 | 770 | * aac_fib_complete - fib completion handler |
1da177e4 LT |
771 | * @fib: FIB to complete |
772 | * | |
773 | * Will do all necessary work to complete a FIB. | |
774 | */ | |
8ce3eca4 | 775 | |
bfb35aa8 | 776 | int aac_fib_complete(struct fib *fibptr) |
1da177e4 | 777 | { |
cacb6dc3 | 778 | unsigned long flags; |
a8166a52 | 779 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 LT |
780 | |
781 | /* | |
782 | * Check for a fib which has already been completed | |
783 | */ | |
784 | ||
785 | if (hw_fib->header.XferState == 0) | |
8ce3eca4 | 786 | return 0; |
1da177e4 LT |
787 | /* |
788 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 789 | */ |
1da177e4 | 790 | |
85d22bbf MR |
791 | if (hw_fib->header.StructType != FIB_MAGIC && |
792 | hw_fib->header.StructType != FIB_MAGIC2 && | |
793 | hw_fib->header.StructType != FIB_MAGIC2_64) | |
8ce3eca4 | 794 | return -EINVAL; |
1da177e4 | 795 | /* |
8ce3eca4 | 796 | * This block completes a cdb which orginated on the host and we |
1da177e4 LT |
797 | * just need to deallocate the cdb or reinit it. At this point the |
798 | * command is complete that we had sent to the adapter and this | |
799 | * cdb could be reused. | |
800 | */ | |
cacb6dc3 PNRCEH |
801 | spin_lock_irqsave(&fibptr->event_lock, flags); |
802 | if (fibptr->done == 2) { | |
803 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
804 | return 0; | |
805 | } | |
806 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
807 | ||
1da177e4 LT |
808 | if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) && |
809 | (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) | |
810 | { | |
811 | fib_dealloc(fibptr); | |
812 | } | |
813 | else if(hw_fib->header.XferState & cpu_to_le32(SentFromHost)) | |
814 | { | |
815 | /* | |
816 | * This handles the case when the host has aborted the I/O | |
817 | * to the adapter because the adapter is not responding | |
818 | */ | |
819 | fib_dealloc(fibptr); | |
820 | } else if(hw_fib->header.XferState & cpu_to_le32(HostOwned)) { | |
821 | fib_dealloc(fibptr); | |
822 | } else { | |
823 | BUG(); | |
8ce3eca4 | 824 | } |
1da177e4 LT |
825 | return 0; |
826 | } | |
827 | ||
828 | /** | |
829 | * aac_printf - handle printf from firmware | |
830 | * @dev: Adapter | |
831 | * @val: Message info | |
832 | * | |
833 | * Print a message passed to us by the controller firmware on the | |
834 | * Adaptec board | |
835 | */ | |
836 | ||
837 | void aac_printf(struct aac_dev *dev, u32 val) | |
838 | { | |
1da177e4 | 839 | char *cp = dev->printfbuf; |
7c00ffa3 MH |
840 | if (dev->printf_enabled) |
841 | { | |
842 | int length = val & 0xffff; | |
843 | int level = (val >> 16) & 0xffff; | |
8ce3eca4 | 844 | |
7c00ffa3 MH |
845 | /* |
846 | * The size of the printfbuf is set in port.c | |
847 | * There is no variable or define for it | |
848 | */ | |
849 | if (length > 255) | |
850 | length = 255; | |
851 | if (cp[length] != 0) | |
852 | cp[length] = 0; | |
853 | if (level == LOG_AAC_HIGH_ERROR) | |
1241f359 | 854 | printk(KERN_WARNING "%s:%s", dev->name, cp); |
7c00ffa3 | 855 | else |
1241f359 | 856 | printk(KERN_INFO "%s:%s", dev->name, cp); |
7c00ffa3 | 857 | } |
8ce3eca4 | 858 | memset(cp, 0, 256); |
1da177e4 LT |
859 | } |
860 | ||
131256cf MH |
861 | |
862 | /** | |
863 | * aac_handle_aif - Handle a message from the firmware | |
864 | * @dev: Which adapter this fib is from | |
865 | * @fibptr: Pointer to fibptr from adapter | |
866 | * | |
867 | * This routine handles a driver notify fib from the adapter and | |
868 | * dispatches it to the appropriate routine for handling. | |
869 | */ | |
870 | ||
31876f32 | 871 | #define AIF_SNIFF_TIMEOUT (30*HZ) |
131256cf MH |
872 | static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) |
873 | { | |
a8166a52 | 874 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
131256cf | 875 | struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; |
0995ad38 | 876 | u32 channel, id, lun, container; |
131256cf MH |
877 | struct scsi_device *device; |
878 | enum { | |
879 | NOTHING, | |
880 | DELETE, | |
881 | ADD, | |
882 | CHANGE | |
0995ad38 | 883 | } device_config_needed = NOTHING; |
131256cf MH |
884 | |
885 | /* Sniff for container changes */ | |
886 | ||
c8f7b073 | 887 | if (!dev || !dev->fsa_dev) |
131256cf | 888 | return; |
0995ad38 | 889 | container = channel = id = lun = (u32)-1; |
131256cf MH |
890 | |
891 | /* | |
892 | * We have set this up to try and minimize the number of | |
893 | * re-configures that take place. As a result of this when | |
894 | * certain AIF's come in we will set a flag waiting for another | |
895 | * type of AIF before setting the re-config flag. | |
896 | */ | |
897 | switch (le32_to_cpu(aifcmd->command)) { | |
898 | case AifCmdDriverNotify: | |
f3307f72 | 899 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
131256cf MH |
900 | /* |
901 | * Morph or Expand complete | |
902 | */ | |
903 | case AifDenMorphComplete: | |
904 | case AifDenVolumeExtendComplete: | |
f3307f72 | 905 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
906 | if (container >= dev->maximum_num_containers) |
907 | break; | |
908 | ||
909 | /* | |
f64a181d | 910 | * Find the scsi_device associated with the SCSI |
131256cf MH |
911 | * address. Make sure we have the right array, and if |
912 | * so set the flag to initiate a new re-config once we | |
913 | * see an AifEnConfigChange AIF come through. | |
914 | */ | |
915 | ||
916 | if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) { | |
8ce3eca4 SM |
917 | device = scsi_device_lookup(dev->scsi_host_ptr, |
918 | CONTAINER_TO_CHANNEL(container), | |
919 | CONTAINER_TO_ID(container), | |
131256cf MH |
920 | CONTAINER_TO_LUN(container)); |
921 | if (device) { | |
922 | dev->fsa_dev[container].config_needed = CHANGE; | |
923 | dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; | |
31876f32 | 924 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
925 | scsi_device_put(device); |
926 | } | |
927 | } | |
928 | } | |
929 | ||
930 | /* | |
931 | * If we are waiting on something and this happens to be | |
932 | * that thing then set the re-configure flag. | |
933 | */ | |
934 | if (container != (u32)-1) { | |
935 | if (container >= dev->maximum_num_containers) | |
936 | break; | |
31876f32 | 937 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 938 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 939 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
940 | dev->fsa_dev[container].config_waiting_on = 0; |
941 | } else for (container = 0; | |
942 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 943 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 944 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 945 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
946 | dev->fsa_dev[container].config_waiting_on = 0; |
947 | } | |
948 | break; | |
949 | ||
950 | case AifCmdEventNotify: | |
f3307f72 | 951 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
95e852e1 SM |
952 | case AifEnBatteryEvent: |
953 | dev->cache_protected = | |
954 | (((__le32 *)aifcmd->data)[1] == cpu_to_le32(3)); | |
955 | break; | |
131256cf MH |
956 | /* |
957 | * Add an Array. | |
958 | */ | |
959 | case AifEnAddContainer: | |
f3307f72 | 960 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
961 | if (container >= dev->maximum_num_containers) |
962 | break; | |
963 | dev->fsa_dev[container].config_needed = ADD; | |
964 | dev->fsa_dev[container].config_waiting_on = | |
965 | AifEnConfigChange; | |
31876f32 | 966 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
967 | break; |
968 | ||
969 | /* | |
970 | * Delete an Array. | |
971 | */ | |
972 | case AifEnDeleteContainer: | |
f3307f72 | 973 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
974 | if (container >= dev->maximum_num_containers) |
975 | break; | |
976 | dev->fsa_dev[container].config_needed = DELETE; | |
977 | dev->fsa_dev[container].config_waiting_on = | |
978 | AifEnConfigChange; | |
31876f32 | 979 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
980 | break; |
981 | ||
982 | /* | |
983 | * Container change detected. If we currently are not | |
984 | * waiting on something else, setup to wait on a Config Change. | |
985 | */ | |
986 | case AifEnContainerChange: | |
f3307f72 | 987 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
988 | if (container >= dev->maximum_num_containers) |
989 | break; | |
31876f32 MH |
990 | if (dev->fsa_dev[container].config_waiting_on && |
991 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
992 | break; |
993 | dev->fsa_dev[container].config_needed = CHANGE; | |
994 | dev->fsa_dev[container].config_waiting_on = | |
995 | AifEnConfigChange; | |
31876f32 | 996 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
997 | break; |
998 | ||
999 | case AifEnConfigChange: | |
1000 | break; | |
1001 | ||
cb1042f2 SM |
1002 | case AifEnAddJBOD: |
1003 | case AifEnDeleteJBOD: | |
1004 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); | |
a4576b5d MS |
1005 | if ((container >> 28)) { |
1006 | container = (u32)-1; | |
cb1042f2 | 1007 | break; |
a4576b5d | 1008 | } |
cb1042f2 | 1009 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1010 | if (channel >= dev->maximum_num_channels) { |
1011 | container = (u32)-1; | |
cb1042f2 | 1012 | break; |
a4576b5d | 1013 | } |
cb1042f2 | 1014 | id = container & 0xFFFF; |
a4576b5d MS |
1015 | if (id >= dev->maximum_num_physicals) { |
1016 | container = (u32)-1; | |
cb1042f2 | 1017 | break; |
a4576b5d | 1018 | } |
cb1042f2 | 1019 | lun = (container >> 16) & 0xFF; |
a4576b5d | 1020 | container = (u32)-1; |
cb1042f2 SM |
1021 | channel = aac_phys_to_logical(channel); |
1022 | device_config_needed = | |
1023 | (((__le32 *)aifcmd->data)[0] == | |
1024 | cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE; | |
5ca05594 RM |
1025 | if (device_config_needed == ADD) { |
1026 | device = scsi_device_lookup(dev->scsi_host_ptr, | |
1027 | channel, | |
1028 | id, | |
1029 | lun); | |
1030 | if (device) { | |
1031 | scsi_remove_device(device); | |
1032 | scsi_device_put(device); | |
1033 | } | |
1034 | } | |
cb1042f2 SM |
1035 | break; |
1036 | ||
0995ad38 | 1037 | case AifEnEnclosureManagement: |
cb1042f2 SM |
1038 | /* |
1039 | * If in JBOD mode, automatic exposure of new | |
1040 | * physical target to be suppressed until configured. | |
1041 | */ | |
1042 | if (dev->jbod) | |
1043 | break; | |
0995ad38 SM |
1044 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) { |
1045 | case EM_DRIVE_INSERTION: | |
1046 | case EM_DRIVE_REMOVAL: | |
1047 | container = le32_to_cpu( | |
1048 | ((__le32 *)aifcmd->data)[2]); | |
a4576b5d MS |
1049 | if ((container >> 28)) { |
1050 | container = (u32)-1; | |
0995ad38 | 1051 | break; |
a4576b5d | 1052 | } |
0995ad38 | 1053 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1054 | if (channel >= dev->maximum_num_channels) { |
1055 | container = (u32)-1; | |
0995ad38 | 1056 | break; |
a4576b5d | 1057 | } |
0995ad38 SM |
1058 | id = container & 0xFFFF; |
1059 | lun = (container >> 16) & 0xFF; | |
a4576b5d | 1060 | container = (u32)-1; |
0995ad38 SM |
1061 | if (id >= dev->maximum_num_physicals) { |
1062 | /* legacy dev_t ? */ | |
1063 | if ((0x2000 <= id) || lun || channel || | |
1064 | ((channel = (id >> 7) & 0x3F) >= | |
1065 | dev->maximum_num_channels)) | |
1066 | break; | |
1067 | lun = (id >> 4) & 7; | |
1068 | id &= 0xF; | |
1069 | } | |
1070 | channel = aac_phys_to_logical(channel); | |
1071 | device_config_needed = | |
1072 | (((__le32 *)aifcmd->data)[3] | |
1073 | == cpu_to_le32(EM_DRIVE_INSERTION)) ? | |
1074 | ADD : DELETE; | |
1075 | break; | |
1076 | } | |
1077 | break; | |
131256cf MH |
1078 | } |
1079 | ||
1080 | /* | |
1081 | * If we are waiting on something and this happens to be | |
1082 | * that thing then set the re-configure flag. | |
1083 | */ | |
1084 | if (container != (u32)-1) { | |
1085 | if (container >= dev->maximum_num_containers) | |
1086 | break; | |
31876f32 | 1087 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1088 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1089 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1090 | dev->fsa_dev[container].config_waiting_on = 0; |
1091 | } else for (container = 0; | |
1092 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 1093 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1094 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1095 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1096 | dev->fsa_dev[container].config_waiting_on = 0; |
1097 | } | |
1098 | break; | |
1099 | ||
1100 | case AifCmdJobProgress: | |
1101 | /* | |
1102 | * These are job progress AIF's. When a Clear is being | |
1103 | * done on a container it is initially created then hidden from | |
1104 | * the OS. When the clear completes we don't get a config | |
1105 | * change so we monitor the job status complete on a clear then | |
1106 | * wait for a container change. | |
1107 | */ | |
1108 | ||
f3307f72 CH |
1109 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1110 | (((__le32 *)aifcmd->data)[6] == ((__le32 *)aifcmd->data)[5] || | |
1111 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess))) { | |
131256cf MH |
1112 | for (container = 0; |
1113 | container < dev->maximum_num_containers; | |
1114 | ++container) { | |
1115 | /* | |
1116 | * Stomp on all config sequencing for all | |
1117 | * containers? | |
1118 | */ | |
1119 | dev->fsa_dev[container].config_waiting_on = | |
1120 | AifEnContainerChange; | |
1121 | dev->fsa_dev[container].config_needed = ADD; | |
31876f32 MH |
1122 | dev->fsa_dev[container].config_waiting_stamp = |
1123 | jiffies; | |
131256cf MH |
1124 | } |
1125 | } | |
f3307f72 CH |
1126 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1127 | ((__le32 *)aifcmd->data)[6] == 0 && | |
1128 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning)) { | |
131256cf MH |
1129 | for (container = 0; |
1130 | container < dev->maximum_num_containers; | |
1131 | ++container) { | |
1132 | /* | |
1133 | * Stomp on all config sequencing for all | |
1134 | * containers? | |
1135 | */ | |
1136 | dev->fsa_dev[container].config_waiting_on = | |
1137 | AifEnContainerChange; | |
1138 | dev->fsa_dev[container].config_needed = DELETE; | |
31876f32 MH |
1139 | dev->fsa_dev[container].config_waiting_stamp = |
1140 | jiffies; | |
131256cf MH |
1141 | } |
1142 | } | |
1143 | break; | |
1144 | } | |
1145 | ||
a4576b5d MS |
1146 | container = 0; |
1147 | retry_next: | |
0995ad38 | 1148 | if (device_config_needed == NOTHING) |
a4576b5d | 1149 | for (; container < dev->maximum_num_containers; ++container) { |
31876f32 MH |
1150 | if ((dev->fsa_dev[container].config_waiting_on == 0) && |
1151 | (dev->fsa_dev[container].config_needed != NOTHING) && | |
1152 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) { | |
131256cf MH |
1153 | device_config_needed = |
1154 | dev->fsa_dev[container].config_needed; | |
1155 | dev->fsa_dev[container].config_needed = NOTHING; | |
0995ad38 SM |
1156 | channel = CONTAINER_TO_CHANNEL(container); |
1157 | id = CONTAINER_TO_ID(container); | |
1158 | lun = CONTAINER_TO_LUN(container); | |
131256cf MH |
1159 | break; |
1160 | } | |
1161 | } | |
1162 | if (device_config_needed == NOTHING) | |
1163 | return; | |
1164 | ||
1165 | /* | |
1166 | * If we decided that a re-configuration needs to be done, | |
1167 | * schedule it here on the way out the door, please close the door | |
1168 | * behind you. | |
1169 | */ | |
1170 | ||
131256cf | 1171 | /* |
f64a181d | 1172 | * Find the scsi_device associated with the SCSI address, |
131256cf MH |
1173 | * and mark it as changed, invalidating the cache. This deals |
1174 | * with changes to existing device IDs. | |
1175 | */ | |
1176 | ||
1177 | if (!dev || !dev->scsi_host_ptr) | |
1178 | return; | |
1179 | /* | |
bfb35aa8 | 1180 | * force reload of disk info via aac_probe_container |
131256cf | 1181 | */ |
0995ad38 SM |
1182 | if ((channel == CONTAINER_CHANNEL) && |
1183 | (device_config_needed != NOTHING)) { | |
1184 | if (dev->fsa_dev[container].valid == 1) | |
1185 | dev->fsa_dev[container].valid = 2; | |
bfb35aa8 | 1186 | aac_probe_container(dev, container); |
0995ad38 SM |
1187 | } |
1188 | device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun); | |
131256cf MH |
1189 | if (device) { |
1190 | switch (device_config_needed) { | |
1191 | case DELETE: | |
9cccde93 RM |
1192 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1193 | scsi_remove_device(device); | |
1194 | #else | |
0995ad38 SM |
1195 | if (scsi_device_online(device)) { |
1196 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1197 | sdev_printk(KERN_INFO, device, | |
1198 | "Device offlined - %s\n", | |
1199 | (channel == CONTAINER_CHANNEL) ? | |
1200 | "array deleted" : | |
1201 | "enclosure services event"); | |
1202 | } | |
9cccde93 | 1203 | #endif |
0995ad38 SM |
1204 | break; |
1205 | case ADD: | |
1206 | if (!scsi_device_online(device)) { | |
1207 | sdev_printk(KERN_INFO, device, | |
1208 | "Device online - %s\n", | |
1209 | (channel == CONTAINER_CHANNEL) ? | |
1210 | "array created" : | |
1211 | "enclosure services event"); | |
1212 | scsi_device_set_state(device, SDEV_RUNNING); | |
1213 | } | |
1214 | /* FALLTHRU */ | |
131256cf | 1215 | case CHANGE: |
0995ad38 SM |
1216 | if ((channel == CONTAINER_CHANNEL) |
1217 | && (!dev->fsa_dev[container].valid)) { | |
9cccde93 RM |
1218 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1219 | scsi_remove_device(device); | |
1220 | #else | |
0995ad38 SM |
1221 | if (!scsi_device_online(device)) |
1222 | break; | |
1223 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1224 | sdev_printk(KERN_INFO, device, | |
1225 | "Device offlined - %s\n", | |
1226 | "array failed"); | |
9cccde93 | 1227 | #endif |
0995ad38 SM |
1228 | break; |
1229 | } | |
131256cf MH |
1230 | scsi_rescan_device(&device->sdev_gendev); |
1231 | ||
1232 | default: | |
1233 | break; | |
1234 | } | |
1235 | scsi_device_put(device); | |
0995ad38 | 1236 | device_config_needed = NOTHING; |
131256cf | 1237 | } |
0995ad38 SM |
1238 | if (device_config_needed == ADD) |
1239 | scsi_add_device(dev->scsi_host_ptr, channel, id, lun); | |
a4576b5d MS |
1240 | if (channel == CONTAINER_CHANNEL) { |
1241 | container++; | |
1242 | device_config_needed = NOTHING; | |
1243 | goto retry_next; | |
1244 | } | |
131256cf MH |
1245 | } |
1246 | ||
29c97684 | 1247 | static int _aac_reset_adapter(struct aac_dev *aac, int forced) |
8c867b25 MH |
1248 | { |
1249 | int index, quirks; | |
8c867b25 MH |
1250 | int retval; |
1251 | struct Scsi_Host *host; | |
1252 | struct scsi_device *dev; | |
1253 | struct scsi_cmnd *command; | |
1254 | struct scsi_cmnd *command_list; | |
29c97684 | 1255 | int jafo = 0; |
8c867b25 MH |
1256 | |
1257 | /* | |
1258 | * Assumptions: | |
29c97684 SM |
1259 | * - host is locked, unless called by the aacraid thread. |
1260 | * (a matter of convenience, due to legacy issues surrounding | |
1261 | * eh_host_adapter_reset). | |
8c867b25 MH |
1262 | * - in_reset is asserted, so no new i/o is getting to the |
1263 | * card. | |
29c97684 SM |
1264 | * - The card is dead, or will be very shortly ;-/ so no new |
1265 | * commands are completing in the interrupt service. | |
8c867b25 MH |
1266 | */ |
1267 | host = aac->scsi_host_ptr; | |
1268 | scsi_block_requests(host); | |
1269 | aac_adapter_disable_int(aac); | |
29c97684 SM |
1270 | if (aac->thread->pid != current->pid) { |
1271 | spin_unlock_irq(host->host_lock); | |
1272 | kthread_stop(aac->thread); | |
1273 | jafo = 1; | |
1274 | } | |
8c867b25 MH |
1275 | |
1276 | /* | |
1277 | * If a positive health, means in a known DEAD PANIC | |
1278 | * state and the adapter could be reset to `try again'. | |
1279 | */ | |
29c97684 | 1280 | retval = aac_adapter_restart(aac, forced ? 0 : aac_adapter_check_health(aac)); |
8c867b25 MH |
1281 | |
1282 | if (retval) | |
1283 | goto out; | |
8c867b25 | 1284 | |
d18b448f MH |
1285 | /* |
1286 | * Loop through the fibs, close the synchronous FIBS | |
1287 | */ | |
33bb3b29 | 1288 | for (retval = 1, index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { |
d18b448f | 1289 | struct fib *fib = &aac->fibs[index]; |
a8166a52 MH |
1290 | if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && |
1291 | (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) { | |
d18b448f MH |
1292 | unsigned long flagv; |
1293 | spin_lock_irqsave(&fib->event_lock, flagv); | |
1294 | up(&fib->event_wait); | |
1295 | spin_unlock_irqrestore(&fib->event_lock, flagv); | |
1296 | schedule(); | |
33bb3b29 | 1297 | retval = 0; |
d18b448f MH |
1298 | } |
1299 | } | |
33bb3b29 MH |
1300 | /* Give some extra time for ioctls to complete. */ |
1301 | if (retval == 0) | |
1302 | ssleep(2); | |
8c867b25 MH |
1303 | index = aac->cardtype; |
1304 | ||
1305 | /* | |
1306 | * Re-initialize the adapter, first free resources, then carefully | |
1307 | * apply the initialization sequence to come back again. Only risk | |
1308 | * is a change in Firmware dropping cache, it is assumed the caller | |
1309 | * will ensure that i/o is queisced and the card is flushed in that | |
1310 | * case. | |
1311 | */ | |
1312 | aac_fib_map_free(aac); | |
8c867b25 MH |
1313 | pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys); |
1314 | aac->comm_addr = NULL; | |
1315 | aac->comm_phys = 0; | |
1316 | kfree(aac->queues); | |
1317 | aac->queues = NULL; | |
1318 | free_irq(aac->pdev->irq, aac); | |
d0efab26 VA |
1319 | if (aac->msi) |
1320 | pci_disable_msi(aac->pdev); | |
8c867b25 MH |
1321 | kfree(aac->fsa_dev); |
1322 | aac->fsa_dev = NULL; | |
94cf6ba1 SM |
1323 | quirks = aac_get_driver_ident(index)->quirks; |
1324 | if (quirks & AAC_QUIRK_31BIT) { | |
929a22a5 YH |
1325 | if (((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(31)))) || |
1326 | ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_BIT_MASK(31))))) | |
8c867b25 MH |
1327 | goto out; |
1328 | } else { | |
284901a9 YH |
1329 | if (((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(32)))) || |
1330 | ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_BIT_MASK(32))))) | |
8c867b25 MH |
1331 | goto out; |
1332 | } | |
1333 | if ((retval = (*(aac_get_driver_ident(index)->init))(aac))) | |
1334 | goto out; | |
94cf6ba1 | 1335 | if (quirks & AAC_QUIRK_31BIT) |
284901a9 | 1336 | if ((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(32)))) |
8c867b25 | 1337 | goto out; |
29c97684 | 1338 | if (jafo) { |
f170168b KC |
1339 | aac->thread = kthread_run(aac_command_thread, aac, "%s", |
1340 | aac->name); | |
29c97684 SM |
1341 | if (IS_ERR(aac->thread)) { |
1342 | retval = PTR_ERR(aac->thread); | |
1343 | goto out; | |
1344 | } | |
8c867b25 MH |
1345 | } |
1346 | (void)aac_get_adapter_info(aac); | |
8c867b25 | 1347 | if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) { |
8ce3eca4 SM |
1348 | host->sg_tablesize = 34; |
1349 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1350 | } | |
1351 | if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) { | |
1352 | host->sg_tablesize = 17; | |
1353 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1354 | } | |
8c867b25 MH |
1355 | aac_get_config_status(aac, 1); |
1356 | aac_get_containers(aac); | |
1357 | /* | |
1358 | * This is where the assumption that the Adapter is quiesced | |
1359 | * is important. | |
1360 | */ | |
1361 | command_list = NULL; | |
1362 | __shost_for_each_device(dev, host) { | |
1363 | unsigned long flags; | |
1364 | spin_lock_irqsave(&dev->list_lock, flags); | |
1365 | list_for_each_entry(command, &dev->cmd_list, list) | |
1366 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1367 | command->SCp.buffer = (struct scatterlist *)command_list; | |
1368 | command_list = command; | |
1369 | } | |
1370 | spin_unlock_irqrestore(&dev->list_lock, flags); | |
1371 | } | |
1372 | while ((command = command_list)) { | |
1373 | command_list = (struct scsi_cmnd *)command->SCp.buffer; | |
1374 | command->SCp.buffer = NULL; | |
1375 | command->result = DID_OK << 16 | |
1376 | | COMMAND_COMPLETE << 8 | |
1377 | | SAM_STAT_TASK_SET_FULL; | |
1378 | command->SCp.phase = AAC_OWNER_ERROR_HANDLER; | |
1379 | command->scsi_done(command); | |
1380 | } | |
1381 | retval = 0; | |
1382 | ||
1383 | out: | |
1384 | aac->in_reset = 0; | |
1385 | scsi_unblock_requests(host); | |
29c97684 SM |
1386 | if (jafo) { |
1387 | spin_lock_irq(host->host_lock); | |
1388 | } | |
1389 | return retval; | |
1390 | } | |
1391 | ||
1392 | int aac_reset_adapter(struct aac_dev * aac, int forced) | |
1393 | { | |
1394 | unsigned long flagv = 0; | |
1395 | int retval; | |
1396 | struct Scsi_Host * host; | |
1397 | ||
1398 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1399 | return -EBUSY; | |
1400 | ||
1401 | if (aac->in_reset) { | |
1402 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1403 | return -EBUSY; | |
1404 | } | |
1405 | aac->in_reset = 1; | |
1406 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1407 | ||
1408 | /* | |
1409 | * Wait for all commands to complete to this specific | |
1410 | * target (block maximum 60 seconds). Although not necessary, | |
1411 | * it does make us a good storage citizen. | |
1412 | */ | |
1413 | host = aac->scsi_host_ptr; | |
1414 | scsi_block_requests(host); | |
1415 | if (forced < 2) for (retval = 60; retval; --retval) { | |
1416 | struct scsi_device * dev; | |
1417 | struct scsi_cmnd * command; | |
1418 | int active = 0; | |
1419 | ||
1420 | __shost_for_each_device(dev, host) { | |
1421 | spin_lock_irqsave(&dev->list_lock, flagv); | |
1422 | list_for_each_entry(command, &dev->cmd_list, list) { | |
1423 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1424 | active++; | |
1425 | break; | |
1426 | } | |
1427 | } | |
1428 | spin_unlock_irqrestore(&dev->list_lock, flagv); | |
1429 | if (active) | |
1430 | break; | |
1431 | ||
1432 | } | |
1433 | /* | |
1434 | * We can exit If all the commands are complete | |
1435 | */ | |
1436 | if (active == 0) | |
1437 | break; | |
1438 | ssleep(1); | |
1439 | } | |
1440 | ||
1441 | /* Quiesce build, flush cache, write through mode */ | |
f858317d SM |
1442 | if (forced < 2) |
1443 | aac_send_shutdown(aac); | |
29c97684 | 1444 | spin_lock_irqsave(host->host_lock, flagv); |
f858317d | 1445 | retval = _aac_reset_adapter(aac, forced ? forced : ((aac_check_reset != 0) && (aac_check_reset != 1))); |
29c97684 SM |
1446 | spin_unlock_irqrestore(host->host_lock, flagv); |
1447 | ||
f858317d | 1448 | if ((forced < 2) && (retval == -ENODEV)) { |
29c97684 SM |
1449 | /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */ |
1450 | struct fib * fibctx = aac_fib_alloc(aac); | |
1451 | if (fibctx) { | |
1452 | struct aac_pause *cmd; | |
1453 | int status; | |
1454 | ||
1455 | aac_fib_init(fibctx); | |
1456 | ||
1457 | cmd = (struct aac_pause *) fib_data(fibctx); | |
1458 | ||
1459 | cmd->command = cpu_to_le32(VM_ContainerConfig); | |
1460 | cmd->type = cpu_to_le32(CT_PAUSE_IO); | |
1461 | cmd->timeout = cpu_to_le32(1); | |
1462 | cmd->min = cpu_to_le32(1); | |
1463 | cmd->noRescan = cpu_to_le32(1); | |
1464 | cmd->count = cpu_to_le32(0); | |
1465 | ||
1466 | status = aac_fib_send(ContainerCommand, | |
1467 | fibctx, | |
1468 | sizeof(struct aac_pause), | |
1469 | FsaNormal, | |
1470 | -2 /* Timeout silently */, 1, | |
1471 | NULL, NULL); | |
1472 | ||
1473 | if (status >= 0) | |
1474 | aac_fib_complete(fibctx); | |
cacb6dc3 PNRCEH |
1475 | /* FIB should be freed only after getting |
1476 | * the response from the F/W */ | |
1477 | if (status != -ERESTARTSYS) | |
1478 | aac_fib_free(fibctx); | |
29c97684 SM |
1479 | } |
1480 | } | |
1481 | ||
8c867b25 MH |
1482 | return retval; |
1483 | } | |
1484 | ||
1485 | int aac_check_health(struct aac_dev * aac) | |
1486 | { | |
1487 | int BlinkLED; | |
1488 | unsigned long time_now, flagv = 0; | |
1489 | struct list_head * entry; | |
1490 | struct Scsi_Host * host; | |
1491 | ||
1492 | /* Extending the scope of fib_lock slightly to protect aac->in_reset */ | |
1493 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1494 | return 0; | |
1495 | ||
1496 | if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) { | |
1497 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1498 | return 0; /* OK */ | |
1499 | } | |
1500 | ||
1501 | aac->in_reset = 1; | |
1502 | ||
1503 | /* Fake up an AIF: | |
1504 | * aac_aifcmd.command = AifCmdEventNotify = 1 | |
1505 | * aac_aifcmd.seqnum = 0xFFFFFFFF | |
1506 | * aac_aifcmd.data[0] = AifEnExpEvent = 23 | |
1507 | * aac_aifcmd.data[1] = AifExeFirmwarePanic = 3 | |
1508 | * aac.aifcmd.data[2] = AifHighPriority = 3 | |
1509 | * aac.aifcmd.data[3] = BlinkLED | |
1510 | */ | |
1511 | ||
1512 | time_now = jiffies/HZ; | |
1513 | entry = aac->fib_list.next; | |
1514 | ||
1515 | /* | |
1516 | * For each Context that is on the | |
1517 | * fibctxList, make a copy of the | |
1518 | * fib, and then set the event to wake up the | |
1519 | * thread that is waiting for it. | |
1520 | */ | |
1521 | while (entry != &aac->fib_list) { | |
1522 | /* | |
1523 | * Extract the fibctx | |
1524 | */ | |
1525 | struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next); | |
1526 | struct hw_fib * hw_fib; | |
1527 | struct fib * fib; | |
1528 | /* | |
1529 | * Check if the queue is getting | |
1530 | * backlogged | |
1531 | */ | |
1532 | if (fibctx->count > 20) { | |
1533 | /* | |
1534 | * It's *not* jiffies folks, | |
1535 | * but jiffies / HZ, so do not | |
1536 | * panic ... | |
1537 | */ | |
1538 | u32 time_last = fibctx->jiffies; | |
1539 | /* | |
1540 | * Has it been > 2 minutes | |
1541 | * since the last read off | |
1542 | * the queue? | |
1543 | */ | |
1544 | if ((time_now - time_last) > aif_timeout) { | |
1545 | entry = entry->next; | |
1546 | aac_close_fib_context(aac, fibctx); | |
1547 | continue; | |
1548 | } | |
1549 | } | |
1550 | /* | |
1551 | * Warning: no sleep allowed while | |
1552 | * holding spinlock | |
1553 | */ | |
4dbc22d7 SM |
1554 | hw_fib = kzalloc(sizeof(struct hw_fib), GFP_ATOMIC); |
1555 | fib = kzalloc(sizeof(struct fib), GFP_ATOMIC); | |
8c867b25 MH |
1556 | if (fib && hw_fib) { |
1557 | struct aac_aifcmd * aif; | |
1558 | ||
a8166a52 | 1559 | fib->hw_fib_va = hw_fib; |
8c867b25 MH |
1560 | fib->dev = aac; |
1561 | aac_fib_init(fib); | |
1562 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
1563 | fib->size = sizeof (struct fib); | |
1564 | fib->data = hw_fib->data; | |
1565 | aif = (struct aac_aifcmd *)hw_fib->data; | |
1566 | aif->command = cpu_to_le32(AifCmdEventNotify); | |
a3940da5 SM |
1567 | aif->seqnum = cpu_to_le32(0xFFFFFFFF); |
1568 | ((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent); | |
1569 | ((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic); | |
1570 | ((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority); | |
1571 | ((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED); | |
8c867b25 MH |
1572 | |
1573 | /* | |
1574 | * Put the FIB onto the | |
1575 | * fibctx's fibs | |
1576 | */ | |
1577 | list_add_tail(&fib->fiblink, &fibctx->fib_list); | |
1578 | fibctx->count++; | |
1579 | /* | |
1580 | * Set the event to wake up the | |
1581 | * thread that will waiting. | |
1582 | */ | |
1583 | up(&fibctx->wait_sem); | |
1584 | } else { | |
1585 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1586 | kfree(fib); | |
1587 | kfree(hw_fib); | |
1588 | } | |
1589 | entry = entry->next; | |
1590 | } | |
1591 | ||
1592 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1593 | ||
1594 | if (BlinkLED < 0) { | |
1595 | printk(KERN_ERR "%s: Host adapter dead %d\n", aac->name, BlinkLED); | |
1596 | goto out; | |
1597 | } | |
1598 | ||
1599 | printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED); | |
1600 | ||
2f7ecc55 | 1601 | if (!aac_check_reset || ((aac_check_reset == 1) && |
a3940da5 SM |
1602 | (aac->supplement_adapter_info.SupportedOptions2 & |
1603 | AAC_OPTION_IGNORE_RESET))) | |
29c97684 | 1604 | goto out; |
8c867b25 | 1605 | host = aac->scsi_host_ptr; |
29c97684 SM |
1606 | if (aac->thread->pid != current->pid) |
1607 | spin_lock_irqsave(host->host_lock, flagv); | |
f858317d | 1608 | BlinkLED = _aac_reset_adapter(aac, aac_check_reset != 1); |
29c97684 SM |
1609 | if (aac->thread->pid != current->pid) |
1610 | spin_unlock_irqrestore(host->host_lock, flagv); | |
8c867b25 MH |
1611 | return BlinkLED; |
1612 | ||
1613 | out: | |
1614 | aac->in_reset = 0; | |
1615 | return BlinkLED; | |
1616 | } | |
1617 | ||
1618 | ||
1da177e4 LT |
1619 | /** |
1620 | * aac_command_thread - command processing thread | |
1621 | * @dev: Adapter to monitor | |
1622 | * | |
1623 | * Waits on the commandready event in it's queue. When the event gets set | |
1624 | * it will pull FIBs off it's queue. It will continue to pull FIBs off | |
1625 | * until the queue is empty. When the queue is empty it will wait for | |
1626 | * more FIBs. | |
1627 | */ | |
8ce3eca4 | 1628 | |
fe27381d | 1629 | int aac_command_thread(void *data) |
1da177e4 | 1630 | { |
fe27381d | 1631 | struct aac_dev *dev = data; |
1da177e4 LT |
1632 | struct hw_fib *hw_fib, *hw_newfib; |
1633 | struct fib *fib, *newfib; | |
1da177e4 LT |
1634 | struct aac_fib_context *fibctx; |
1635 | unsigned long flags; | |
1636 | DECLARE_WAITQUEUE(wait, current); | |
29c97684 SM |
1637 | unsigned long next_jiffies = jiffies + HZ; |
1638 | unsigned long next_check_jiffies = next_jiffies; | |
1639 | long difference = HZ; | |
1da177e4 LT |
1640 | |
1641 | /* | |
1642 | * We can only have one thread per adapter for AIF's. | |
1643 | */ | |
1644 | if (dev->aif_thread) | |
1645 | return -EINVAL; | |
fe27381d | 1646 | |
1da177e4 LT |
1647 | /* |
1648 | * Let the DPC know it has a place to send the AIF's to. | |
1649 | */ | |
1650 | dev->aif_thread = 1; | |
2f130980 | 1651 | add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); |
1da177e4 | 1652 | set_current_state(TASK_INTERRUPTIBLE); |
2f130980 | 1653 | dprintk ((KERN_INFO "aac_command_thread start\n")); |
8ce3eca4 | 1654 | while (1) { |
2f130980 MH |
1655 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1656 | while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) { | |
1da177e4 LT |
1657 | struct list_head *entry; |
1658 | struct aac_aifcmd * aifcmd; | |
1659 | ||
1660 | set_current_state(TASK_RUNNING); | |
8ce3eca4 | 1661 | |
2f130980 | 1662 | entry = dev->queues->queue[HostNormCmdQueue].cmdq.next; |
1da177e4 | 1663 | list_del(entry); |
8ce3eca4 | 1664 | |
2f130980 | 1665 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1666 | fib = list_entry(entry, struct fib, fiblink); |
1667 | /* | |
8ce3eca4 SM |
1668 | * We will process the FIB here or pass it to a |
1669 | * worker thread that is TBD. We Really can't | |
1da177e4 LT |
1670 | * do anything at this point since we don't have |
1671 | * anything defined for this thread to do. | |
1672 | */ | |
a8166a52 | 1673 | hw_fib = fib->hw_fib_va; |
1da177e4 LT |
1674 | memset(fib, 0, sizeof(struct fib)); |
1675 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
8ce3eca4 | 1676 | fib->size = sizeof(struct fib); |
a8166a52 | 1677 | fib->hw_fib_va = hw_fib; |
1da177e4 LT |
1678 | fib->data = hw_fib->data; |
1679 | fib->dev = dev; | |
1680 | /* | |
1681 | * We only handle AifRequest fibs from the adapter. | |
1682 | */ | |
1683 | aifcmd = (struct aac_aifcmd *) hw_fib->data; | |
1684 | if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) { | |
1685 | /* Handle Driver Notify Events */ | |
131256cf | 1686 | aac_handle_aif(dev, fib); |
56b58712 | 1687 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1688 | aac_fib_adapter_complete(fib, (u16)sizeof(u32)); |
1da177e4 | 1689 | } else { |
1da177e4 LT |
1690 | /* The u32 here is important and intended. We are using |
1691 | 32bit wrapping time to fit the adapter field */ | |
8ce3eca4 | 1692 | |
1da177e4 LT |
1693 | u32 time_now, time_last; |
1694 | unsigned long flagv; | |
2f130980 MH |
1695 | unsigned num; |
1696 | struct hw_fib ** hw_fib_pool, ** hw_fib_p; | |
1697 | struct fib ** fib_pool, ** fib_p; | |
8ce3eca4 | 1698 | |
131256cf | 1699 | /* Sniff events */ |
8ce3eca4 | 1700 | if ((aifcmd->command == |
131256cf | 1701 | cpu_to_le32(AifCmdEventNotify)) || |
8ce3eca4 | 1702 | (aifcmd->command == |
131256cf MH |
1703 | cpu_to_le32(AifCmdJobProgress))) { |
1704 | aac_handle_aif(dev, fib); | |
1705 | } | |
29c97684 | 1706 | |
1da177e4 LT |
1707 | time_now = jiffies/HZ; |
1708 | ||
2f130980 MH |
1709 | /* |
1710 | * Warning: no sleep allowed while | |
1711 | * holding spinlock. We take the estimate | |
1712 | * and pre-allocate a set of fibs outside the | |
1713 | * lock. | |
1714 | */ | |
1715 | num = le32_to_cpu(dev->init->AdapterFibsSize) | |
1716 | / sizeof(struct hw_fib); /* some extra */ | |
1717 | spin_lock_irqsave(&dev->fib_lock, flagv); | |
1718 | entry = dev->fib_list.next; | |
1719 | while (entry != &dev->fib_list) { | |
1720 | entry = entry->next; | |
1721 | ++num; | |
1722 | } | |
1723 | spin_unlock_irqrestore(&dev->fib_lock, flagv); | |
1724 | hw_fib_pool = NULL; | |
1725 | fib_pool = NULL; | |
1726 | if (num | |
1727 | && ((hw_fib_pool = kmalloc(sizeof(struct hw_fib *) * num, GFP_KERNEL))) | |
1728 | && ((fib_pool = kmalloc(sizeof(struct fib *) * num, GFP_KERNEL)))) { | |
1729 | hw_fib_p = hw_fib_pool; | |
1730 | fib_p = fib_pool; | |
1731 | while (hw_fib_p < &hw_fib_pool[num]) { | |
1732 | if (!(*(hw_fib_p++) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL))) { | |
1733 | --hw_fib_p; | |
1734 | break; | |
1735 | } | |
1736 | if (!(*(fib_p++) = kmalloc(sizeof(struct fib), GFP_KERNEL))) { | |
1737 | kfree(*(--hw_fib_p)); | |
1738 | break; | |
1739 | } | |
1740 | } | |
1741 | if ((num = hw_fib_p - hw_fib_pool) == 0) { | |
1742 | kfree(fib_pool); | |
1743 | fib_pool = NULL; | |
1744 | kfree(hw_fib_pool); | |
1745 | hw_fib_pool = NULL; | |
1746 | } | |
c9475cb0 | 1747 | } else { |
2f130980 MH |
1748 | kfree(hw_fib_pool); |
1749 | hw_fib_pool = NULL; | |
1750 | } | |
1da177e4 LT |
1751 | spin_lock_irqsave(&dev->fib_lock, flagv); |
1752 | entry = dev->fib_list.next; | |
1753 | /* | |
8ce3eca4 | 1754 | * For each Context that is on the |
1da177e4 LT |
1755 | * fibctxList, make a copy of the |
1756 | * fib, and then set the event to wake up the | |
1757 | * thread that is waiting for it. | |
1758 | */ | |
2f130980 MH |
1759 | hw_fib_p = hw_fib_pool; |
1760 | fib_p = fib_pool; | |
1da177e4 LT |
1761 | while (entry != &dev->fib_list) { |
1762 | /* | |
1763 | * Extract the fibctx | |
1764 | */ | |
1765 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
1766 | /* | |
1767 | * Check if the queue is getting | |
1768 | * backlogged | |
1769 | */ | |
1770 | if (fibctx->count > 20) | |
1771 | { | |
1772 | /* | |
1773 | * It's *not* jiffies folks, | |
1774 | * but jiffies / HZ so do not | |
1775 | * panic ... | |
1776 | */ | |
1777 | time_last = fibctx->jiffies; | |
1778 | /* | |
8ce3eca4 | 1779 | * Has it been > 2 minutes |
1da177e4 LT |
1780 | * since the last read off |
1781 | * the queue? | |
1782 | */ | |
404d9a90 | 1783 | if ((time_now - time_last) > aif_timeout) { |
1da177e4 LT |
1784 | entry = entry->next; |
1785 | aac_close_fib_context(dev, fibctx); | |
1786 | continue; | |
1787 | } | |
1788 | } | |
1789 | /* | |
1790 | * Warning: no sleep allowed while | |
1791 | * holding spinlock | |
1792 | */ | |
2f130980 MH |
1793 | if (hw_fib_p < &hw_fib_pool[num]) { |
1794 | hw_newfib = *hw_fib_p; | |
1795 | *(hw_fib_p++) = NULL; | |
1796 | newfib = *fib_p; | |
1797 | *(fib_p++) = NULL; | |
1da177e4 LT |
1798 | /* |
1799 | * Make the copy of the FIB | |
1800 | */ | |
1801 | memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib)); | |
1802 | memcpy(newfib, fib, sizeof(struct fib)); | |
a8166a52 | 1803 | newfib->hw_fib_va = hw_newfib; |
1da177e4 LT |
1804 | /* |
1805 | * Put the FIB onto the | |
1806 | * fibctx's fibs | |
1807 | */ | |
1808 | list_add_tail(&newfib->fiblink, &fibctx->fib_list); | |
1809 | fibctx->count++; | |
8ce3eca4 | 1810 | /* |
1da177e4 | 1811 | * Set the event to wake up the |
2f130980 | 1812 | * thread that is waiting. |
1da177e4 LT |
1813 | */ |
1814 | up(&fibctx->wait_sem); | |
1815 | } else { | |
1816 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1da177e4 LT |
1817 | } |
1818 | entry = entry->next; | |
1819 | } | |
1820 | /* | |
1821 | * Set the status of this FIB | |
1822 | */ | |
56b58712 | 1823 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1824 | aac_fib_adapter_complete(fib, sizeof(u32)); |
1da177e4 | 1825 | spin_unlock_irqrestore(&dev->fib_lock, flagv); |
2f130980 MH |
1826 | /* Free up the remaining resources */ |
1827 | hw_fib_p = hw_fib_pool; | |
1828 | fib_p = fib_pool; | |
1829 | while (hw_fib_p < &hw_fib_pool[num]) { | |
c9475cb0 JJ |
1830 | kfree(*hw_fib_p); |
1831 | kfree(*fib_p); | |
2f130980 MH |
1832 | ++fib_p; |
1833 | ++hw_fib_p; | |
1834 | } | |
c9475cb0 JJ |
1835 | kfree(hw_fib_pool); |
1836 | kfree(fib_pool); | |
1da177e4 | 1837 | } |
1da177e4 | 1838 | kfree(fib); |
2f130980 | 1839 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1840 | } |
1841 | /* | |
1842 | * There are no more AIF's | |
1843 | */ | |
2f130980 | 1844 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); |
29c97684 SM |
1845 | |
1846 | /* | |
1847 | * Background activity | |
1848 | */ | |
1849 | if ((time_before(next_check_jiffies,next_jiffies)) | |
1850 | && ((difference = next_check_jiffies - jiffies) <= 0)) { | |
1851 | next_check_jiffies = next_jiffies; | |
1852 | if (aac_check_health(dev) == 0) { | |
1853 | difference = ((long)(unsigned)check_interval) | |
1854 | * HZ; | |
1855 | next_check_jiffies = jiffies + difference; | |
1856 | } else if (!dev->queues) | |
1857 | break; | |
1858 | } | |
1859 | if (!time_before(next_check_jiffies,next_jiffies) | |
1860 | && ((difference = next_jiffies - jiffies) <= 0)) { | |
1861 | struct timeval now; | |
1862 | int ret; | |
1863 | ||
1864 | /* Don't even try to talk to adapter if its sick */ | |
1865 | ret = aac_check_health(dev); | |
1866 | if (!ret && !dev->queues) | |
1867 | break; | |
1868 | next_check_jiffies = jiffies | |
1869 | + ((long)(unsigned)check_interval) | |
1870 | * HZ; | |
1871 | do_gettimeofday(&now); | |
1872 | ||
1873 | /* Synchronize our watches */ | |
1874 | if (((1000000 - (1000000 / HZ)) > now.tv_usec) | |
1875 | && (now.tv_usec > (1000000 / HZ))) | |
1876 | difference = (((1000000 - now.tv_usec) * HZ) | |
1877 | + 500000) / 1000000; | |
1878 | else if (ret == 0) { | |
1879 | struct fib *fibptr; | |
1880 | ||
1881 | if ((fibptr = aac_fib_alloc(dev))) { | |
cacb6dc3 | 1882 | int status; |
f3307f72 | 1883 | __le32 *info; |
29c97684 SM |
1884 | |
1885 | aac_fib_init(fibptr); | |
1886 | ||
f3307f72 | 1887 | info = (__le32 *) fib_data(fibptr); |
29c97684 SM |
1888 | if (now.tv_usec > 500000) |
1889 | ++now.tv_sec; | |
1890 | ||
1891 | *info = cpu_to_le32(now.tv_sec); | |
1892 | ||
cacb6dc3 | 1893 | status = aac_fib_send(SendHostTime, |
29c97684 SM |
1894 | fibptr, |
1895 | sizeof(*info), | |
1896 | FsaNormal, | |
1897 | 1, 1, | |
1898 | NULL, | |
1899 | NULL); | |
cacb6dc3 PNRCEH |
1900 | /* Do not set XferState to zero unless |
1901 | * receives a response from F/W */ | |
1902 | if (status >= 0) | |
1903 | aac_fib_complete(fibptr); | |
1904 | /* FIB should be freed only after | |
1905 | * getting the response from the F/W */ | |
1906 | if (status != -ERESTARTSYS) | |
1907 | aac_fib_free(fibptr); | |
29c97684 SM |
1908 | } |
1909 | difference = (long)(unsigned)update_interval*HZ; | |
1910 | } else { | |
1911 | /* retry shortly */ | |
1912 | difference = 10 * HZ; | |
1913 | } | |
1914 | next_jiffies = jiffies + difference; | |
1915 | if (time_before(next_check_jiffies,next_jiffies)) | |
1916 | difference = next_check_jiffies - jiffies; | |
1917 | } | |
1918 | if (difference <= 0) | |
1919 | difference = 1; | |
1920 | set_current_state(TASK_INTERRUPTIBLE); | |
1921 | schedule_timeout(difference); | |
1da177e4 | 1922 | |
fe27381d | 1923 | if (kthread_should_stop()) |
1da177e4 | 1924 | break; |
1da177e4 | 1925 | } |
2f130980 MH |
1926 | if (dev->queues) |
1927 | remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); | |
1da177e4 | 1928 | dev->aif_thread = 0; |
2f130980 | 1929 | return 0; |
1da177e4 | 1930 | } |