Commit | Line | Data |
---|---|---|
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 | { |
ef616233 | 211 | unsigned long flags; |
cacb6dc3 | 212 | |
ef616233 | 213 | if (fibptr->done == 2) |
cacb6dc3 | 214 | return; |
1da177e4 LT |
215 | |
216 | spin_lock_irqsave(&fibptr->dev->fib_lock, flags); | |
03d44337 | 217 | if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 218 | aac_config.fib_timeouts++; |
03d44337 MH |
219 | if (fibptr->hw_fib_va->header.XferState != 0) { |
220 | printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", | |
221 | (void*)fibptr, | |
222 | le32_to_cpu(fibptr->hw_fib_va->header.XferState)); | |
223 | } | |
224 | fibptr->next = fibptr->dev->free_fib; | |
225 | fibptr->dev->free_fib = fibptr; | |
1da177e4 LT |
226 | spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); |
227 | } | |
228 | ||
229 | /** | |
bfb35aa8 | 230 | * aac_fib_init - initialise a fib |
1da177e4 | 231 | * @fibptr: The fib to initialize |
8ce3eca4 | 232 | * |
1da177e4 LT |
233 | * Set up the generic fib fields ready for use |
234 | */ | |
8ce3eca4 | 235 | |
bfb35aa8 | 236 | void aac_fib_init(struct fib *fibptr) |
1da177e4 | 237 | { |
a8166a52 | 238 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
1da177e4 | 239 | |
85d22bbf | 240 | memset(&hw_fib->header, 0, sizeof(struct aac_fibhdr)); |
1da177e4 | 241 | hw_fib->header.StructType = FIB_MAGIC; |
7c00ffa3 MH |
242 | hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size); |
243 | hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable); | |
85d22bbf | 244 | hw_fib->header.u.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa); |
7c00ffa3 | 245 | hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size); |
1da177e4 LT |
246 | } |
247 | ||
248 | /** | |
249 | * fib_deallocate - deallocate a fib | |
250 | * @fibptr: fib to deallocate | |
251 | * | |
252 | * Will deallocate and return to the free pool the FIB pointed to by the | |
253 | * caller. | |
254 | */ | |
8ce3eca4 | 255 | |
4833869e | 256 | static void fib_dealloc(struct fib * fibptr) |
1da177e4 | 257 | { |
a8166a52 | 258 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
8ce3eca4 | 259 | hw_fib->header.XferState = 0; |
1da177e4 LT |
260 | } |
261 | ||
262 | /* | |
263 | * Commuication primitives define and support the queuing method we use to | |
264 | * support host to adapter commuication. All queue accesses happen through | |
265 | * these routines and are the only routines which have a knowledge of the | |
266 | * how these queues are implemented. | |
267 | */ | |
8ce3eca4 | 268 | |
1da177e4 LT |
269 | /** |
270 | * aac_get_entry - get a queue entry | |
271 | * @dev: Adapter | |
272 | * @qid: Queue Number | |
273 | * @entry: Entry return | |
274 | * @index: Index return | |
275 | * @nonotify: notification control | |
276 | * | |
277 | * With a priority the routine returns a queue entry if the queue has free entries. If the queue | |
278 | * is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is | |
279 | * returned. | |
280 | */ | |
8ce3eca4 | 281 | |
1da177e4 LT |
282 | static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) |
283 | { | |
284 | struct aac_queue * q; | |
bed30de4 | 285 | unsigned long idx; |
1da177e4 LT |
286 | |
287 | /* | |
288 | * All of the queues wrap when they reach the end, so we check | |
289 | * to see if they have reached the end and if they have we just | |
290 | * set the index back to zero. This is a wrap. You could or off | |
291 | * the high bits in all updates but this is a bit faster I think. | |
292 | */ | |
293 | ||
294 | q = &dev->queues->queue[qid]; | |
bed30de4 MH |
295 | |
296 | idx = *index = le32_to_cpu(*(q->headers.producer)); | |
297 | /* Interrupt Moderation, only interrupt for first two entries */ | |
298 | if (idx != le32_to_cpu(*(q->headers.consumer))) { | |
299 | if (--idx == 0) { | |
1640a2c3 | 300 | if (qid == AdapNormCmdQueue) |
bed30de4 | 301 | idx = ADAP_NORM_CMD_ENTRIES; |
1640a2c3 | 302 | else |
bed30de4 MH |
303 | idx = ADAP_NORM_RESP_ENTRIES; |
304 | } | |
305 | if (idx != le32_to_cpu(*(q->headers.consumer))) | |
8ce3eca4 | 306 | *nonotify = 1; |
bed30de4 | 307 | } |
1da177e4 | 308 | |
1640a2c3 | 309 | if (qid == AdapNormCmdQueue) { |
8ce3eca4 | 310 | if (*index >= ADAP_NORM_CMD_ENTRIES) |
1da177e4 | 311 | *index = 0; /* Wrap to front of the Producer Queue. */ |
1640a2c3 | 312 | } else { |
8ce3eca4 | 313 | if (*index >= ADAP_NORM_RESP_ENTRIES) |
1da177e4 LT |
314 | *index = 0; /* Wrap to front of the Producer Queue. */ |
315 | } | |
1da177e4 | 316 | |
8ce3eca4 SM |
317 | /* Queue is full */ |
318 | if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { | |
7c00ffa3 | 319 | printk(KERN_WARNING "Queue %d full, %u outstanding.\n", |
ef616233 | 320 | qid, atomic_read(&q->numpending)); |
1da177e4 LT |
321 | return 0; |
322 | } else { | |
8ce3eca4 | 323 | *entry = q->base + *index; |
1da177e4 LT |
324 | return 1; |
325 | } | |
8ce3eca4 | 326 | } |
1da177e4 LT |
327 | |
328 | /** | |
329 | * aac_queue_get - get the next free QE | |
330 | * @dev: Adapter | |
331 | * @index: Returned index | |
332 | * @priority: Priority of fib | |
333 | * @fib: Fib to associate with the queue entry | |
334 | * @wait: Wait if queue full | |
335 | * @fibptr: Driver fib object to go with fib | |
336 | * @nonotify: Don't notify the adapter | |
337 | * | |
338 | * Gets the next free QE off the requested priorty adapter command | |
339 | * queue and associates the Fib with the QE. The QE represented by | |
340 | * index is ready to insert on the queue when this routine returns | |
341 | * success. | |
342 | */ | |
343 | ||
28713324 | 344 | 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 |
345 | { |
346 | struct aac_entry * entry = NULL; | |
347 | int map = 0; | |
8ce3eca4 | 348 | |
1640a2c3 | 349 | if (qid == AdapNormCmdQueue) { |
1da177e4 | 350 | /* if no entries wait for some if caller wants to */ |
8ce3eca4 | 351 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
352 | printk(KERN_ERR "GetEntries failed\n"); |
353 | } | |
8ce3eca4 SM |
354 | /* |
355 | * Setup queue entry with a command, status and fib mapped | |
356 | */ | |
357 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
358 | map = 1; | |
1640a2c3 | 359 | } else { |
8ce3eca4 | 360 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
361 | /* if no entries wait for some if caller wants to */ |
362 | } | |
8ce3eca4 SM |
363 | /* |
364 | * Setup queue entry with command, status and fib mapped | |
365 | */ | |
366 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
367 | entry->addr = hw_fib->header.SenderFibAddress; | |
368 | /* Restore adapters pointer to the FIB */ | |
85d22bbf | 369 | hw_fib->header.u.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */ |
8ce3eca4 | 370 | map = 0; |
1da177e4 LT |
371 | } |
372 | /* | |
373 | * If MapFib is true than we need to map the Fib and put pointers | |
374 | * in the queue entry. | |
375 | */ | |
376 | if (map) | |
377 | entry->addr = cpu_to_le32(fibptr->hw_fib_pa); | |
378 | return 0; | |
379 | } | |
380 | ||
1da177e4 | 381 | /* |
8ce3eca4 SM |
382 | * Define the highest level of host to adapter communication routines. |
383 | * These routines will support host to adapter FS commuication. These | |
1da177e4 LT |
384 | * routines have no knowledge of the commuication method used. This level |
385 | * sends and receives FIBs. This level has no knowledge of how these FIBs | |
386 | * get passed back and forth. | |
387 | */ | |
388 | ||
389 | /** | |
bfb35aa8 | 390 | * aac_fib_send - send a fib to the adapter |
1da177e4 LT |
391 | * @command: Command to send |
392 | * @fibptr: The fib | |
393 | * @size: Size of fib data area | |
394 | * @priority: Priority of Fib | |
395 | * @wait: Async/sync select | |
396 | * @reply: True if a reply is wanted | |
397 | * @callback: Called with reply | |
398 | * @callback_data: Passed to callback | |
399 | * | |
400 | * Sends the requested FIB to the adapter and optionally will wait for a | |
401 | * response FIB. If the caller does not wish to wait for a response than | |
402 | * an event to wait on must be supplied. This event will be set when a | |
403 | * response FIB is received from the adapter. | |
404 | */ | |
8ce3eca4 | 405 | |
bfb35aa8 MH |
406 | int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, |
407 | int priority, int wait, int reply, fib_callback callback, | |
408 | void *callback_data) | |
1da177e4 | 409 | { |
1da177e4 | 410 | struct aac_dev * dev = fibptr->dev; |
a8166a52 | 411 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 412 | unsigned long flags = 0; |
cacb6dc3 | 413 | unsigned long mflags = 0; |
11604612 | 414 | unsigned long sflags = 0; |
cacb6dc3 | 415 | |
1640a2c3 | 416 | |
1da177e4 LT |
417 | if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) |
418 | return -EBUSY; | |
419 | /* | |
25985edc | 420 | * There are 5 cases with the wait and response requested flags. |
1da177e4 LT |
421 | * The only invalid cases are if the caller requests to wait and |
422 | * does not request a response and if the caller does not want a | |
423 | * response and the Fib is not allocated from pool. If a response | |
424 | * is not requesed the Fib will just be deallocaed by the DPC | |
425 | * routine when the response comes back from the adapter. No | |
8ce3eca4 | 426 | * further processing will be done besides deleting the Fib. We |
1da177e4 LT |
427 | * will have a debug mode where the adapter can notify the host |
428 | * it had a problem and the host can log that fact. | |
429 | */ | |
b6ef70f3 | 430 | fibptr->flags = 0; |
1da177e4 LT |
431 | if (wait && !reply) { |
432 | return -EINVAL; | |
433 | } else if (!wait && reply) { | |
434 | hw_fib->header.XferState |= cpu_to_le32(Async | ResponseExpected); | |
435 | FIB_COUNTER_INCREMENT(aac_config.AsyncSent); | |
436 | } else if (!wait && !reply) { | |
437 | hw_fib->header.XferState |= cpu_to_le32(NoResponseExpected); | |
438 | FIB_COUNTER_INCREMENT(aac_config.NoResponseSent); | |
439 | } else if (wait && reply) { | |
440 | hw_fib->header.XferState |= cpu_to_le32(ResponseExpected); | |
441 | FIB_COUNTER_INCREMENT(aac_config.NormalSent); | |
8ce3eca4 | 442 | } |
1da177e4 LT |
443 | /* |
444 | * Map the fib into 32bits by using the fib number | |
445 | */ | |
446 | ||
8e0c5ebd | 447 | hw_fib->header.SenderFibAddress = cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2); |
85d22bbf | 448 | hw_fib->header.Handle = (u32)(fibptr - dev->fibs) + 1; |
1da177e4 LT |
449 | /* |
450 | * Set FIB state to indicate where it came from and if we want a | |
451 | * response from the adapter. Also load the command from the | |
452 | * caller. | |
453 | * | |
454 | * Map the hw fib pointer as a 32bit value | |
455 | */ | |
456 | hw_fib->header.Command = cpu_to_le16(command); | |
457 | hw_fib->header.XferState |= cpu_to_le32(SentFromHost); | |
1da177e4 LT |
458 | /* |
459 | * Set the size of the Fib we want to send to the adapter | |
460 | */ | |
461 | hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size); | |
462 | if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) { | |
463 | return -EMSGSIZE; | |
8ce3eca4 | 464 | } |
1da177e4 LT |
465 | /* |
466 | * Get a queue entry connect the FIB to it and send an notify | |
467 | * the adapter a command is ready. | |
468 | */ | |
1640a2c3 | 469 | hw_fib->header.XferState |= cpu_to_le32(NormalPriority); |
1da177e4 | 470 | |
1da177e4 LT |
471 | /* |
472 | * Fill in the Callback and CallbackContext if we are not | |
473 | * going to wait. | |
474 | */ | |
475 | if (!wait) { | |
476 | fibptr->callback = callback; | |
477 | fibptr->callback_data = callback_data; | |
b6ef70f3 | 478 | fibptr->flags = FIB_CONTEXT_FLAG; |
1da177e4 | 479 | } |
1da177e4 LT |
480 | |
481 | fibptr->done = 0; | |
1da177e4 | 482 | |
1640a2c3 MH |
483 | FIB_COUNTER_INCREMENT(aac_config.FibsSent); |
484 | ||
1640a2c3 | 485 | dprintk((KERN_DEBUG "Fib contents:.\n")); |
8e0c5ebd MH |
486 | dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command))); |
487 | dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command))); | |
488 | dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState))); | |
a8166a52 | 489 | dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib_va)); |
1640a2c3 MH |
490 | dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); |
491 | dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); | |
492 | ||
c8f7b073 | 493 | if (!dev->queues) |
65101355 | 494 | return -EBUSY; |
1640a2c3 | 495 | |
cacb6dc3 PNRCEH |
496 | if (wait) { |
497 | ||
498 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
499 | if (dev->management_fib_count >= AAC_NUM_MGT_FIB) { | |
500 | printk(KERN_INFO "No management Fibs Available:%d\n", | |
501 | dev->management_fib_count); | |
502 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
503 | return -EBUSY; | |
504 | } | |
505 | dev->management_fib_count++; | |
506 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
1640a2c3 | 507 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 PNRCEH |
508 | } |
509 | ||
11604612 MR |
510 | if (dev->sync_mode) { |
511 | if (wait) | |
512 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
513 | spin_lock_irqsave(&dev->sync_lock, sflags); | |
514 | if (dev->sync_fib) { | |
515 | list_add_tail(&fibptr->fiblink, &dev->sync_fib_list); | |
516 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
517 | } else { | |
518 | dev->sync_fib = fibptr; | |
519 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
520 | aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, | |
521 | (u32)fibptr->hw_fib_pa, 0, 0, 0, 0, 0, | |
522 | NULL, NULL, NULL, NULL, NULL); | |
523 | } | |
524 | if (wait) { | |
525 | fibptr->flags |= FIB_CONTEXT_FLAG_WAIT; | |
526 | if (down_interruptible(&fibptr->event_wait)) { | |
527 | fibptr->flags &= ~FIB_CONTEXT_FLAG_WAIT; | |
528 | return -EFAULT; | |
529 | } | |
530 | return 0; | |
531 | } | |
532 | return -EINPROGRESS; | |
533 | } | |
534 | ||
cacb6dc3 PNRCEH |
535 | if (aac_adapter_deliver(fibptr) != 0) { |
536 | printk(KERN_ERR "aac_fib_send: returned -EBUSY\n"); | |
537 | if (wait) { | |
538 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
539 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
540 | dev->management_fib_count--; | |
541 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
542 | } | |
543 | return -EBUSY; | |
544 | } | |
545 | ||
8e0c5ebd | 546 | |
1da177e4 | 547 | /* |
8ce3eca4 | 548 | * If the caller wanted us to wait for response wait now. |
1da177e4 | 549 | */ |
8ce3eca4 | 550 | |
1da177e4 LT |
551 | if (wait) { |
552 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
9203344c MH |
553 | /* Only set for first known interruptable command */ |
554 | if (wait < 0) { | |
555 | /* | |
556 | * *VERY* Dangerous to time out a command, the | |
557 | * assumption is made that we have no hope of | |
558 | * functioning because an interrupt routing or other | |
559 | * hardware failure has occurred. | |
560 | */ | |
30002f1c | 561 | unsigned long timeout = jiffies + (180 * HZ); /* 3 minutes */ |
9203344c | 562 | while (down_trylock(&fibptr->event_wait)) { |
33524b70 | 563 | int blink; |
30002f1c | 564 | if (time_is_before_eq_jiffies(timeout)) { |
28713324 | 565 | struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue]; |
ef616233 | 566 | atomic_dec(&q->numpending); |
9203344c | 567 | if (wait == -1) { |
bfb35aa8 | 568 | printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n" |
9203344c MH |
569 | "Usually a result of a PCI interrupt routing problem;\n" |
570 | "update mother board BIOS or consider utilizing one of\n" | |
571 | "the SAFE mode kernel options (acpi, apic etc)\n"); | |
572 | } | |
573 | return -ETIMEDOUT; | |
574 | } | |
33524b70 MH |
575 | if ((blink = aac_adapter_check_health(dev)) > 0) { |
576 | if (wait == -1) { | |
577 | printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n" | |
578 | "Usually a result of a serious unrecoverable hardware problem\n", | |
579 | blink); | |
580 | } | |
581 | return -EFAULT; | |
582 | } | |
30002f1c BC |
583 | /* We used to udelay() here but that absorbed |
584 | * a CPU when a timeout occured. Not very | |
585 | * useful. */ | |
586 | cpu_relax(); | |
9203344c | 587 | } |
0462590e | 588 | } else if (down_interruptible(&fibptr->event_wait)) { |
cacb6dc3 PNRCEH |
589 | /* Do nothing ... satisfy |
590 | * down_interruptible must_check */ | |
e6990c64 | 591 | } |
cacb6dc3 | 592 | |
33bb3b29 | 593 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 | 594 | if (fibptr->done == 0) { |
33bb3b29 | 595 | fibptr->done = 2; /* Tell interrupt we aborted */ |
c8f7b073 | 596 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
cacb6dc3 | 597 | return -ERESTARTSYS; |
c8f7b073 | 598 | } |
33bb3b29 | 599 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
125e1874 | 600 | BUG_ON(fibptr->done == 0); |
8ce3eca4 | 601 | |
912d4e88 | 602 | if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 603 | return -ETIMEDOUT; |
912d4e88 | 604 | return 0; |
1da177e4 LT |
605 | } |
606 | /* | |
607 | * If the user does not want a response than return success otherwise | |
608 | * return pending | |
609 | */ | |
610 | if (reply) | |
611 | return -EINPROGRESS; | |
612 | else | |
613 | return 0; | |
614 | } | |
615 | ||
8ce3eca4 | 616 | /** |
1da177e4 LT |
617 | * aac_consumer_get - get the top of the queue |
618 | * @dev: Adapter | |
619 | * @q: Queue | |
620 | * @entry: Return entry | |
621 | * | |
622 | * Will return a pointer to the entry on the top of the queue requested that | |
8ce3eca4 SM |
623 | * we are a consumer of, and return the address of the queue entry. It does |
624 | * not change the state of the queue. | |
1da177e4 LT |
625 | */ |
626 | ||
627 | int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry) | |
628 | { | |
629 | u32 index; | |
630 | int status; | |
631 | if (le32_to_cpu(*q->headers.producer) == le32_to_cpu(*q->headers.consumer)) { | |
632 | status = 0; | |
633 | } else { | |
634 | /* | |
635 | * The consumer index must be wrapped if we have reached | |
636 | * the end of the queue, else we just use the entry | |
637 | * pointed to by the header index | |
638 | */ | |
8ce3eca4 SM |
639 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
640 | index = 0; | |
1da177e4 | 641 | else |
8ce3eca4 | 642 | index = le32_to_cpu(*q->headers.consumer); |
1da177e4 LT |
643 | *entry = q->base + index; |
644 | status = 1; | |
645 | } | |
646 | return(status); | |
647 | } | |
648 | ||
649 | /** | |
650 | * aac_consumer_free - free consumer entry | |
651 | * @dev: Adapter | |
652 | * @q: Queue | |
653 | * @qid: Queue ident | |
654 | * | |
655 | * Frees up the current top of the queue we are a consumer of. If the | |
656 | * queue was full notify the producer that the queue is no longer full. | |
657 | */ | |
658 | ||
659 | void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) | |
660 | { | |
661 | int wasfull = 0; | |
662 | u32 notify; | |
663 | ||
664 | if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer)) | |
665 | wasfull = 1; | |
8ce3eca4 | 666 | |
1da177e4 LT |
667 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
668 | *q->headers.consumer = cpu_to_le32(1); | |
669 | else | |
36b8dd1b | 670 | le32_add_cpu(q->headers.consumer, 1); |
8ce3eca4 | 671 | |
1da177e4 LT |
672 | if (wasfull) { |
673 | switch (qid) { | |
674 | ||
675 | case HostNormCmdQueue: | |
676 | notify = HostNormCmdNotFull; | |
677 | break; | |
1da177e4 LT |
678 | case HostNormRespQueue: |
679 | notify = HostNormRespNotFull; | |
680 | break; | |
1da177e4 LT |
681 | default: |
682 | BUG(); | |
683 | return; | |
684 | } | |
685 | aac_adapter_notify(dev, notify); | |
686 | } | |
8ce3eca4 | 687 | } |
1da177e4 LT |
688 | |
689 | /** | |
bfb35aa8 | 690 | * aac_fib_adapter_complete - complete adapter issued fib |
1da177e4 LT |
691 | * @fibptr: fib to complete |
692 | * @size: size of fib | |
693 | * | |
694 | * Will do all necessary work to complete a FIB that was sent from | |
695 | * the adapter. | |
696 | */ | |
697 | ||
bfb35aa8 | 698 | int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) |
1da177e4 | 699 | { |
a8166a52 | 700 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 701 | struct aac_dev * dev = fibptr->dev; |
1640a2c3 | 702 | struct aac_queue * q; |
1da177e4 | 703 | unsigned long nointr = 0; |
1640a2c3 MH |
704 | unsigned long qflags; |
705 | ||
85d22bbf MR |
706 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
707 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { | |
e8b12f0f MR |
708 | kfree(hw_fib); |
709 | return 0; | |
710 | } | |
711 | ||
1640a2c3 | 712 | if (hw_fib->header.XferState == 0) { |
28713324 | 713 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 714 | kfree(hw_fib); |
8ce3eca4 | 715 | return 0; |
1640a2c3 | 716 | } |
1da177e4 LT |
717 | /* |
718 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 719 | */ |
85d22bbf MR |
720 | if (hw_fib->header.StructType != FIB_MAGIC && |
721 | hw_fib->header.StructType != FIB_MAGIC2 && | |
722 | hw_fib->header.StructType != FIB_MAGIC2_64) { | |
28713324 | 723 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 724 | kfree(hw_fib); |
8ce3eca4 | 725 | return -EINVAL; |
1da177e4 LT |
726 | } |
727 | /* | |
728 | * This block handles the case where the adapter had sent us a | |
729 | * command and we have finished processing the command. We | |
8ce3eca4 SM |
730 | * call completeFib when we are done processing the command |
731 | * and want to send a response back to the adapter. This will | |
1da177e4 LT |
732 | * send the completed cdb to the adapter. |
733 | */ | |
734 | if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) { | |
28713324 | 735 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
8e0c5ebd MH |
736 | kfree (hw_fib); |
737 | } else { | |
8ce3eca4 SM |
738 | u32 index; |
739 | hw_fib->header.XferState |= cpu_to_le32(HostProcessed); | |
8e0c5ebd MH |
740 | if (size) { |
741 | size += sizeof(struct aac_fibhdr); | |
8ce3eca4 | 742 | if (size > le16_to_cpu(hw_fib->header.SenderSize)) |
8e0c5ebd MH |
743 | return -EMSGSIZE; |
744 | hw_fib->header.Size = cpu_to_le16(size); | |
745 | } | |
746 | q = &dev->queues->queue[AdapNormRespQueue]; | |
747 | spin_lock_irqsave(q->lock, qflags); | |
748 | aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr); | |
749 | *(q->headers.producer) = cpu_to_le32(index + 1); | |
750 | spin_unlock_irqrestore(q->lock, qflags); | |
751 | if (!(nointr & (int)aac_config.irq_mod)) | |
752 | aac_adapter_notify(dev, AdapNormRespQueue); | |
1da177e4 | 753 | } |
8ce3eca4 SM |
754 | } else { |
755 | printk(KERN_WARNING "aac_fib_adapter_complete: " | |
756 | "Unknown xferstate detected.\n"); | |
757 | BUG(); | |
1da177e4 | 758 | } |
1da177e4 LT |
759 | return 0; |
760 | } | |
761 | ||
762 | /** | |
bfb35aa8 | 763 | * aac_fib_complete - fib completion handler |
1da177e4 LT |
764 | * @fib: FIB to complete |
765 | * | |
766 | * Will do all necessary work to complete a FIB. | |
767 | */ | |
8ce3eca4 | 768 | |
bfb35aa8 | 769 | int aac_fib_complete(struct fib *fibptr) |
1da177e4 | 770 | { |
a8166a52 | 771 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 LT |
772 | |
773 | /* | |
774 | * Check for a fib which has already been completed | |
775 | */ | |
776 | ||
777 | if (hw_fib->header.XferState == 0) | |
8ce3eca4 | 778 | return 0; |
1da177e4 LT |
779 | /* |
780 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 781 | */ |
1da177e4 | 782 | |
85d22bbf MR |
783 | if (hw_fib->header.StructType != FIB_MAGIC && |
784 | hw_fib->header.StructType != FIB_MAGIC2 && | |
785 | hw_fib->header.StructType != FIB_MAGIC2_64) | |
8ce3eca4 | 786 | return -EINVAL; |
1da177e4 | 787 | /* |
8ce3eca4 | 788 | * This block completes a cdb which orginated on the host and we |
1da177e4 LT |
789 | * just need to deallocate the cdb or reinit it. At this point the |
790 | * command is complete that we had sent to the adapter and this | |
791 | * cdb could be reused. | |
792 | */ | |
cacb6dc3 | 793 | |
1da177e4 LT |
794 | if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) && |
795 | (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) | |
796 | { | |
797 | fib_dealloc(fibptr); | |
798 | } | |
799 | else if(hw_fib->header.XferState & cpu_to_le32(SentFromHost)) | |
800 | { | |
801 | /* | |
802 | * This handles the case when the host has aborted the I/O | |
803 | * to the adapter because the adapter is not responding | |
804 | */ | |
805 | fib_dealloc(fibptr); | |
806 | } else if(hw_fib->header.XferState & cpu_to_le32(HostOwned)) { | |
807 | fib_dealloc(fibptr); | |
808 | } else { | |
809 | BUG(); | |
8ce3eca4 | 810 | } |
1da177e4 LT |
811 | return 0; |
812 | } | |
813 | ||
814 | /** | |
815 | * aac_printf - handle printf from firmware | |
816 | * @dev: Adapter | |
817 | * @val: Message info | |
818 | * | |
819 | * Print a message passed to us by the controller firmware on the | |
820 | * Adaptec board | |
821 | */ | |
822 | ||
823 | void aac_printf(struct aac_dev *dev, u32 val) | |
824 | { | |
1da177e4 | 825 | char *cp = dev->printfbuf; |
7c00ffa3 MH |
826 | if (dev->printf_enabled) |
827 | { | |
828 | int length = val & 0xffff; | |
829 | int level = (val >> 16) & 0xffff; | |
8ce3eca4 | 830 | |
7c00ffa3 MH |
831 | /* |
832 | * The size of the printfbuf is set in port.c | |
833 | * There is no variable or define for it | |
834 | */ | |
835 | if (length > 255) | |
836 | length = 255; | |
837 | if (cp[length] != 0) | |
838 | cp[length] = 0; | |
839 | if (level == LOG_AAC_HIGH_ERROR) | |
1241f359 | 840 | printk(KERN_WARNING "%s:%s", dev->name, cp); |
7c00ffa3 | 841 | else |
1241f359 | 842 | printk(KERN_INFO "%s:%s", dev->name, cp); |
7c00ffa3 | 843 | } |
8ce3eca4 | 844 | memset(cp, 0, 256); |
1da177e4 LT |
845 | } |
846 | ||
131256cf MH |
847 | |
848 | /** | |
849 | * aac_handle_aif - Handle a message from the firmware | |
850 | * @dev: Which adapter this fib is from | |
851 | * @fibptr: Pointer to fibptr from adapter | |
852 | * | |
853 | * This routine handles a driver notify fib from the adapter and | |
854 | * dispatches it to the appropriate routine for handling. | |
855 | */ | |
856 | ||
495c0217 | 857 | #define AIF_SNIFF_TIMEOUT (500*HZ) |
131256cf MH |
858 | static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) |
859 | { | |
a8166a52 | 860 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
131256cf | 861 | struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; |
0995ad38 | 862 | u32 channel, id, lun, container; |
131256cf MH |
863 | struct scsi_device *device; |
864 | enum { | |
865 | NOTHING, | |
866 | DELETE, | |
867 | ADD, | |
868 | CHANGE | |
0995ad38 | 869 | } device_config_needed = NOTHING; |
131256cf MH |
870 | |
871 | /* Sniff for container changes */ | |
872 | ||
c8f7b073 | 873 | if (!dev || !dev->fsa_dev) |
131256cf | 874 | return; |
0995ad38 | 875 | container = channel = id = lun = (u32)-1; |
131256cf MH |
876 | |
877 | /* | |
878 | * We have set this up to try and minimize the number of | |
879 | * re-configures that take place. As a result of this when | |
880 | * certain AIF's come in we will set a flag waiting for another | |
881 | * type of AIF before setting the re-config flag. | |
882 | */ | |
883 | switch (le32_to_cpu(aifcmd->command)) { | |
884 | case AifCmdDriverNotify: | |
f3307f72 | 885 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
dab04b01 MR |
886 | case AifRawDeviceRemove: |
887 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); | |
888 | if ((container >> 28)) { | |
889 | container = (u32)-1; | |
890 | break; | |
891 | } | |
892 | channel = (container >> 24) & 0xF; | |
893 | if (channel >= dev->maximum_num_channels) { | |
894 | container = (u32)-1; | |
895 | break; | |
896 | } | |
897 | id = container & 0xFFFF; | |
898 | if (id >= dev->maximum_num_physicals) { | |
899 | container = (u32)-1; | |
900 | break; | |
901 | } | |
902 | lun = (container >> 16) & 0xFF; | |
903 | container = (u32)-1; | |
904 | channel = aac_phys_to_logical(channel); | |
905 | device_config_needed = | |
906 | (((__le32 *)aifcmd->data)[0] == | |
907 | cpu_to_le32(AifRawDeviceRemove)) ? DELETE : ADD; | |
908 | ||
909 | if (device_config_needed == ADD) { | |
910 | device = scsi_device_lookup( | |
911 | dev->scsi_host_ptr, | |
912 | channel, id, lun); | |
913 | if (device) { | |
914 | scsi_remove_device(device); | |
915 | scsi_device_put(device); | |
916 | } | |
917 | } | |
918 | break; | |
131256cf MH |
919 | /* |
920 | * Morph or Expand complete | |
921 | */ | |
922 | case AifDenMorphComplete: | |
923 | case AifDenVolumeExtendComplete: | |
f3307f72 | 924 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
925 | if (container >= dev->maximum_num_containers) |
926 | break; | |
927 | ||
928 | /* | |
f64a181d | 929 | * Find the scsi_device associated with the SCSI |
131256cf MH |
930 | * address. Make sure we have the right array, and if |
931 | * so set the flag to initiate a new re-config once we | |
932 | * see an AifEnConfigChange AIF come through. | |
933 | */ | |
934 | ||
935 | if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) { | |
8ce3eca4 SM |
936 | device = scsi_device_lookup(dev->scsi_host_ptr, |
937 | CONTAINER_TO_CHANNEL(container), | |
938 | CONTAINER_TO_ID(container), | |
131256cf MH |
939 | CONTAINER_TO_LUN(container)); |
940 | if (device) { | |
941 | dev->fsa_dev[container].config_needed = CHANGE; | |
942 | dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; | |
31876f32 | 943 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
944 | scsi_device_put(device); |
945 | } | |
946 | } | |
947 | } | |
948 | ||
949 | /* | |
950 | * If we are waiting on something and this happens to be | |
951 | * that thing then set the re-configure flag. | |
952 | */ | |
953 | if (container != (u32)-1) { | |
954 | if (container >= dev->maximum_num_containers) | |
955 | break; | |
31876f32 | 956 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 957 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 958 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
959 | dev->fsa_dev[container].config_waiting_on = 0; |
960 | } else for (container = 0; | |
961 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 962 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 963 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 964 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
965 | dev->fsa_dev[container].config_waiting_on = 0; |
966 | } | |
967 | break; | |
968 | ||
969 | case AifCmdEventNotify: | |
f3307f72 | 970 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
95e852e1 SM |
971 | case AifEnBatteryEvent: |
972 | dev->cache_protected = | |
973 | (((__le32 *)aifcmd->data)[1] == cpu_to_le32(3)); | |
974 | break; | |
131256cf MH |
975 | /* |
976 | * Add an Array. | |
977 | */ | |
978 | case AifEnAddContainer: | |
f3307f72 | 979 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
980 | if (container >= dev->maximum_num_containers) |
981 | break; | |
982 | dev->fsa_dev[container].config_needed = ADD; | |
983 | dev->fsa_dev[container].config_waiting_on = | |
984 | AifEnConfigChange; | |
31876f32 | 985 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
986 | break; |
987 | ||
988 | /* | |
989 | * Delete an Array. | |
990 | */ | |
991 | case AifEnDeleteContainer: | |
f3307f72 | 992 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
993 | if (container >= dev->maximum_num_containers) |
994 | break; | |
995 | dev->fsa_dev[container].config_needed = DELETE; | |
996 | dev->fsa_dev[container].config_waiting_on = | |
997 | AifEnConfigChange; | |
31876f32 | 998 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
999 | break; |
1000 | ||
1001 | /* | |
1002 | * Container change detected. If we currently are not | |
1003 | * waiting on something else, setup to wait on a Config Change. | |
1004 | */ | |
1005 | case AifEnContainerChange: | |
f3307f72 | 1006 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
1007 | if (container >= dev->maximum_num_containers) |
1008 | break; | |
31876f32 MH |
1009 | if (dev->fsa_dev[container].config_waiting_on && |
1010 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
1011 | break; |
1012 | dev->fsa_dev[container].config_needed = CHANGE; | |
1013 | dev->fsa_dev[container].config_waiting_on = | |
1014 | AifEnConfigChange; | |
31876f32 | 1015 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
1016 | break; |
1017 | ||
1018 | case AifEnConfigChange: | |
1019 | break; | |
1020 | ||
cb1042f2 SM |
1021 | case AifEnAddJBOD: |
1022 | case AifEnDeleteJBOD: | |
1023 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); | |
a4576b5d MS |
1024 | if ((container >> 28)) { |
1025 | container = (u32)-1; | |
cb1042f2 | 1026 | break; |
a4576b5d | 1027 | } |
cb1042f2 | 1028 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1029 | if (channel >= dev->maximum_num_channels) { |
1030 | container = (u32)-1; | |
cb1042f2 | 1031 | break; |
a4576b5d | 1032 | } |
cb1042f2 | 1033 | id = container & 0xFFFF; |
a4576b5d MS |
1034 | if (id >= dev->maximum_num_physicals) { |
1035 | container = (u32)-1; | |
cb1042f2 | 1036 | break; |
a4576b5d | 1037 | } |
cb1042f2 | 1038 | lun = (container >> 16) & 0xFF; |
a4576b5d | 1039 | container = (u32)-1; |
cb1042f2 SM |
1040 | channel = aac_phys_to_logical(channel); |
1041 | device_config_needed = | |
1042 | (((__le32 *)aifcmd->data)[0] == | |
1043 | cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE; | |
5ca05594 RM |
1044 | if (device_config_needed == ADD) { |
1045 | device = scsi_device_lookup(dev->scsi_host_ptr, | |
1046 | channel, | |
1047 | id, | |
1048 | lun); | |
1049 | if (device) { | |
1050 | scsi_remove_device(device); | |
1051 | scsi_device_put(device); | |
1052 | } | |
1053 | } | |
cb1042f2 SM |
1054 | break; |
1055 | ||
0995ad38 | 1056 | case AifEnEnclosureManagement: |
cb1042f2 SM |
1057 | /* |
1058 | * If in JBOD mode, automatic exposure of new | |
1059 | * physical target to be suppressed until configured. | |
1060 | */ | |
1061 | if (dev->jbod) | |
1062 | break; | |
0995ad38 SM |
1063 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) { |
1064 | case EM_DRIVE_INSERTION: | |
1065 | case EM_DRIVE_REMOVAL: | |
46154a02 MR |
1066 | case EM_SES_DRIVE_INSERTION: |
1067 | case EM_SES_DRIVE_REMOVAL: | |
0995ad38 SM |
1068 | container = le32_to_cpu( |
1069 | ((__le32 *)aifcmd->data)[2]); | |
a4576b5d MS |
1070 | if ((container >> 28)) { |
1071 | container = (u32)-1; | |
0995ad38 | 1072 | break; |
a4576b5d | 1073 | } |
0995ad38 | 1074 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1075 | if (channel >= dev->maximum_num_channels) { |
1076 | container = (u32)-1; | |
0995ad38 | 1077 | break; |
a4576b5d | 1078 | } |
0995ad38 SM |
1079 | id = container & 0xFFFF; |
1080 | lun = (container >> 16) & 0xFF; | |
a4576b5d | 1081 | container = (u32)-1; |
0995ad38 SM |
1082 | if (id >= dev->maximum_num_physicals) { |
1083 | /* legacy dev_t ? */ | |
1084 | if ((0x2000 <= id) || lun || channel || | |
1085 | ((channel = (id >> 7) & 0x3F) >= | |
1086 | dev->maximum_num_channels)) | |
1087 | break; | |
1088 | lun = (id >> 4) & 7; | |
1089 | id &= 0xF; | |
1090 | } | |
1091 | channel = aac_phys_to_logical(channel); | |
1092 | device_config_needed = | |
46154a02 MR |
1093 | ((((__le32 *)aifcmd->data)[3] |
1094 | == cpu_to_le32(EM_DRIVE_INSERTION)) || | |
1095 | (((__le32 *)aifcmd->data)[3] | |
1096 | == cpu_to_le32(EM_SES_DRIVE_INSERTION))) ? | |
0995ad38 SM |
1097 | ADD : DELETE; |
1098 | break; | |
1099 | } | |
1100 | break; | |
131256cf MH |
1101 | } |
1102 | ||
1103 | /* | |
1104 | * If we are waiting on something and this happens to be | |
1105 | * that thing then set the re-configure flag. | |
1106 | */ | |
1107 | if (container != (u32)-1) { | |
1108 | if (container >= dev->maximum_num_containers) | |
1109 | break; | |
31876f32 | 1110 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1111 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1112 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1113 | dev->fsa_dev[container].config_waiting_on = 0; |
1114 | } else for (container = 0; | |
1115 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 1116 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1117 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1118 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1119 | dev->fsa_dev[container].config_waiting_on = 0; |
1120 | } | |
1121 | break; | |
1122 | ||
1123 | case AifCmdJobProgress: | |
1124 | /* | |
1125 | * These are job progress AIF's. When a Clear is being | |
1126 | * done on a container it is initially created then hidden from | |
1127 | * the OS. When the clear completes we don't get a config | |
1128 | * change so we monitor the job status complete on a clear then | |
1129 | * wait for a container change. | |
1130 | */ | |
1131 | ||
f3307f72 CH |
1132 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1133 | (((__le32 *)aifcmd->data)[6] == ((__le32 *)aifcmd->data)[5] || | |
1134 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess))) { | |
131256cf MH |
1135 | for (container = 0; |
1136 | container < dev->maximum_num_containers; | |
1137 | ++container) { | |
1138 | /* | |
1139 | * Stomp on all config sequencing for all | |
1140 | * containers? | |
1141 | */ | |
1142 | dev->fsa_dev[container].config_waiting_on = | |
1143 | AifEnContainerChange; | |
1144 | dev->fsa_dev[container].config_needed = ADD; | |
31876f32 MH |
1145 | dev->fsa_dev[container].config_waiting_stamp = |
1146 | jiffies; | |
131256cf MH |
1147 | } |
1148 | } | |
f3307f72 CH |
1149 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1150 | ((__le32 *)aifcmd->data)[6] == 0 && | |
1151 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning)) { | |
131256cf MH |
1152 | for (container = 0; |
1153 | container < dev->maximum_num_containers; | |
1154 | ++container) { | |
1155 | /* | |
1156 | * Stomp on all config sequencing for all | |
1157 | * containers? | |
1158 | */ | |
1159 | dev->fsa_dev[container].config_waiting_on = | |
1160 | AifEnContainerChange; | |
1161 | dev->fsa_dev[container].config_needed = DELETE; | |
31876f32 MH |
1162 | dev->fsa_dev[container].config_waiting_stamp = |
1163 | jiffies; | |
131256cf MH |
1164 | } |
1165 | } | |
1166 | break; | |
1167 | } | |
1168 | ||
a4576b5d MS |
1169 | container = 0; |
1170 | retry_next: | |
0995ad38 | 1171 | if (device_config_needed == NOTHING) |
a4576b5d | 1172 | for (; container < dev->maximum_num_containers; ++container) { |
31876f32 MH |
1173 | if ((dev->fsa_dev[container].config_waiting_on == 0) && |
1174 | (dev->fsa_dev[container].config_needed != NOTHING) && | |
1175 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) { | |
131256cf MH |
1176 | device_config_needed = |
1177 | dev->fsa_dev[container].config_needed; | |
1178 | dev->fsa_dev[container].config_needed = NOTHING; | |
0995ad38 SM |
1179 | channel = CONTAINER_TO_CHANNEL(container); |
1180 | id = CONTAINER_TO_ID(container); | |
1181 | lun = CONTAINER_TO_LUN(container); | |
131256cf MH |
1182 | break; |
1183 | } | |
1184 | } | |
1185 | if (device_config_needed == NOTHING) | |
1186 | return; | |
1187 | ||
1188 | /* | |
1189 | * If we decided that a re-configuration needs to be done, | |
1190 | * schedule it here on the way out the door, please close the door | |
1191 | * behind you. | |
1192 | */ | |
1193 | ||
131256cf | 1194 | /* |
f64a181d | 1195 | * Find the scsi_device associated with the SCSI address, |
131256cf MH |
1196 | * and mark it as changed, invalidating the cache. This deals |
1197 | * with changes to existing device IDs. | |
1198 | */ | |
1199 | ||
1200 | if (!dev || !dev->scsi_host_ptr) | |
1201 | return; | |
1202 | /* | |
bfb35aa8 | 1203 | * force reload of disk info via aac_probe_container |
131256cf | 1204 | */ |
0995ad38 SM |
1205 | if ((channel == CONTAINER_CHANNEL) && |
1206 | (device_config_needed != NOTHING)) { | |
1207 | if (dev->fsa_dev[container].valid == 1) | |
1208 | dev->fsa_dev[container].valid = 2; | |
bfb35aa8 | 1209 | aac_probe_container(dev, container); |
0995ad38 SM |
1210 | } |
1211 | device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun); | |
131256cf MH |
1212 | if (device) { |
1213 | switch (device_config_needed) { | |
1214 | case DELETE: | |
9cccde93 RM |
1215 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1216 | scsi_remove_device(device); | |
1217 | #else | |
0995ad38 SM |
1218 | if (scsi_device_online(device)) { |
1219 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1220 | sdev_printk(KERN_INFO, device, | |
1221 | "Device offlined - %s\n", | |
1222 | (channel == CONTAINER_CHANNEL) ? | |
1223 | "array deleted" : | |
1224 | "enclosure services event"); | |
1225 | } | |
9cccde93 | 1226 | #endif |
0995ad38 SM |
1227 | break; |
1228 | case ADD: | |
1229 | if (!scsi_device_online(device)) { | |
1230 | sdev_printk(KERN_INFO, device, | |
1231 | "Device online - %s\n", | |
1232 | (channel == CONTAINER_CHANNEL) ? | |
1233 | "array created" : | |
1234 | "enclosure services event"); | |
1235 | scsi_device_set_state(device, SDEV_RUNNING); | |
1236 | } | |
1237 | /* FALLTHRU */ | |
131256cf | 1238 | case CHANGE: |
0995ad38 SM |
1239 | if ((channel == CONTAINER_CHANNEL) |
1240 | && (!dev->fsa_dev[container].valid)) { | |
9cccde93 RM |
1241 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1242 | scsi_remove_device(device); | |
1243 | #else | |
0995ad38 SM |
1244 | if (!scsi_device_online(device)) |
1245 | break; | |
1246 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1247 | sdev_printk(KERN_INFO, device, | |
1248 | "Device offlined - %s\n", | |
1249 | "array failed"); | |
9cccde93 | 1250 | #endif |
0995ad38 SM |
1251 | break; |
1252 | } | |
131256cf MH |
1253 | scsi_rescan_device(&device->sdev_gendev); |
1254 | ||
1255 | default: | |
1256 | break; | |
1257 | } | |
1258 | scsi_device_put(device); | |
0995ad38 | 1259 | device_config_needed = NOTHING; |
131256cf | 1260 | } |
0995ad38 SM |
1261 | if (device_config_needed == ADD) |
1262 | scsi_add_device(dev->scsi_host_ptr, channel, id, lun); | |
a4576b5d MS |
1263 | if (channel == CONTAINER_CHANNEL) { |
1264 | container++; | |
1265 | device_config_needed = NOTHING; | |
1266 | goto retry_next; | |
1267 | } | |
131256cf MH |
1268 | } |
1269 | ||
29c97684 | 1270 | static int _aac_reset_adapter(struct aac_dev *aac, int forced) |
8c867b25 MH |
1271 | { |
1272 | int index, quirks; | |
495c0217 | 1273 | int retval, i; |
8c867b25 MH |
1274 | struct Scsi_Host *host; |
1275 | struct scsi_device *dev; | |
1276 | struct scsi_cmnd *command; | |
1277 | struct scsi_cmnd *command_list; | |
29c97684 | 1278 | int jafo = 0; |
ef616233 | 1279 | int cpu; |
8c867b25 MH |
1280 | |
1281 | /* | |
1282 | * Assumptions: | |
29c97684 SM |
1283 | * - host is locked, unless called by the aacraid thread. |
1284 | * (a matter of convenience, due to legacy issues surrounding | |
1285 | * eh_host_adapter_reset). | |
8c867b25 MH |
1286 | * - in_reset is asserted, so no new i/o is getting to the |
1287 | * card. | |
29c97684 SM |
1288 | * - The card is dead, or will be very shortly ;-/ so no new |
1289 | * commands are completing in the interrupt service. | |
8c867b25 MH |
1290 | */ |
1291 | host = aac->scsi_host_ptr; | |
1292 | scsi_block_requests(host); | |
1293 | aac_adapter_disable_int(aac); | |
29c97684 SM |
1294 | if (aac->thread->pid != current->pid) { |
1295 | spin_unlock_irq(host->host_lock); | |
1296 | kthread_stop(aac->thread); | |
1297 | jafo = 1; | |
1298 | } | |
8c867b25 MH |
1299 | |
1300 | /* | |
1301 | * If a positive health, means in a known DEAD PANIC | |
1302 | * state and the adapter could be reset to `try again'. | |
1303 | */ | |
29c97684 | 1304 | retval = aac_adapter_restart(aac, forced ? 0 : aac_adapter_check_health(aac)); |
8c867b25 MH |
1305 | |
1306 | if (retval) | |
1307 | goto out; | |
8c867b25 | 1308 | |
d18b448f MH |
1309 | /* |
1310 | * Loop through the fibs, close the synchronous FIBS | |
1311 | */ | |
33bb3b29 | 1312 | for (retval = 1, index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { |
d18b448f | 1313 | struct fib *fib = &aac->fibs[index]; |
a8166a52 MH |
1314 | if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && |
1315 | (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) { | |
d18b448f MH |
1316 | unsigned long flagv; |
1317 | spin_lock_irqsave(&fib->event_lock, flagv); | |
1318 | up(&fib->event_wait); | |
1319 | spin_unlock_irqrestore(&fib->event_lock, flagv); | |
1320 | schedule(); | |
33bb3b29 | 1321 | retval = 0; |
d18b448f MH |
1322 | } |
1323 | } | |
33bb3b29 MH |
1324 | /* Give some extra time for ioctls to complete. */ |
1325 | if (retval == 0) | |
1326 | ssleep(2); | |
8c867b25 MH |
1327 | index = aac->cardtype; |
1328 | ||
1329 | /* | |
1330 | * Re-initialize the adapter, first free resources, then carefully | |
1331 | * apply the initialization sequence to come back again. Only risk | |
1332 | * is a change in Firmware dropping cache, it is assumed the caller | |
1333 | * will ensure that i/o is queisced and the card is flushed in that | |
1334 | * case. | |
1335 | */ | |
1336 | aac_fib_map_free(aac); | |
8c867b25 MH |
1337 | pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys); |
1338 | aac->comm_addr = NULL; | |
1339 | aac->comm_phys = 0; | |
1340 | kfree(aac->queues); | |
1341 | aac->queues = NULL; | |
ef616233 | 1342 | cpu = cpumask_first(cpu_online_mask); |
495c0217 MR |
1343 | if (aac->pdev->device == PMC_DEVICE_S6 || |
1344 | aac->pdev->device == PMC_DEVICE_S7 || | |
1345 | aac->pdev->device == PMC_DEVICE_S8 || | |
1346 | aac->pdev->device == PMC_DEVICE_S9) { | |
1347 | if (aac->max_msix > 1) { | |
ef616233 MR |
1348 | for (i = 0; i < aac->max_msix; i++) { |
1349 | if (irq_set_affinity_hint( | |
1350 | aac->msixentry[i].vector, | |
1351 | NULL)) { | |
1352 | printk(KERN_ERR "%s%d: Failed to reset IRQ affinity for cpu %d\n", | |
1353 | aac->name, | |
1354 | aac->id, | |
1355 | cpu); | |
1356 | } | |
1357 | cpu = cpumask_next(cpu, | |
1358 | cpu_online_mask); | |
495c0217 MR |
1359 | free_irq(aac->msixentry[i].vector, |
1360 | &(aac->aac_msix[i])); | |
ef616233 | 1361 | } |
495c0217 MR |
1362 | pci_disable_msix(aac->pdev); |
1363 | } else { | |
1364 | free_irq(aac->pdev->irq, &(aac->aac_msix[0])); | |
1365 | } | |
1366 | } else { | |
1367 | free_irq(aac->pdev->irq, aac); | |
1368 | } | |
d0efab26 VA |
1369 | if (aac->msi) |
1370 | pci_disable_msi(aac->pdev); | |
8c867b25 MH |
1371 | kfree(aac->fsa_dev); |
1372 | aac->fsa_dev = NULL; | |
94cf6ba1 SM |
1373 | quirks = aac_get_driver_ident(index)->quirks; |
1374 | if (quirks & AAC_QUIRK_31BIT) { | |
929a22a5 YH |
1375 | if (((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(31)))) || |
1376 | ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_BIT_MASK(31))))) | |
8c867b25 MH |
1377 | goto out; |
1378 | } else { | |
284901a9 YH |
1379 | if (((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(32)))) || |
1380 | ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_BIT_MASK(32))))) | |
8c867b25 MH |
1381 | goto out; |
1382 | } | |
1383 | if ((retval = (*(aac_get_driver_ident(index)->init))(aac))) | |
1384 | goto out; | |
94cf6ba1 | 1385 | if (quirks & AAC_QUIRK_31BIT) |
284901a9 | 1386 | if ((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(32)))) |
8c867b25 | 1387 | goto out; |
29c97684 | 1388 | if (jafo) { |
f170168b KC |
1389 | aac->thread = kthread_run(aac_command_thread, aac, "%s", |
1390 | aac->name); | |
29c97684 SM |
1391 | if (IS_ERR(aac->thread)) { |
1392 | retval = PTR_ERR(aac->thread); | |
1393 | goto out; | |
1394 | } | |
8c867b25 MH |
1395 | } |
1396 | (void)aac_get_adapter_info(aac); | |
8c867b25 | 1397 | if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) { |
8ce3eca4 SM |
1398 | host->sg_tablesize = 34; |
1399 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1400 | } | |
1401 | if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) { | |
1402 | host->sg_tablesize = 17; | |
1403 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1404 | } | |
8c867b25 MH |
1405 | aac_get_config_status(aac, 1); |
1406 | aac_get_containers(aac); | |
1407 | /* | |
1408 | * This is where the assumption that the Adapter is quiesced | |
1409 | * is important. | |
1410 | */ | |
1411 | command_list = NULL; | |
1412 | __shost_for_each_device(dev, host) { | |
1413 | unsigned long flags; | |
1414 | spin_lock_irqsave(&dev->list_lock, flags); | |
1415 | list_for_each_entry(command, &dev->cmd_list, list) | |
1416 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1417 | command->SCp.buffer = (struct scatterlist *)command_list; | |
1418 | command_list = command; | |
1419 | } | |
1420 | spin_unlock_irqrestore(&dev->list_lock, flags); | |
1421 | } | |
1422 | while ((command = command_list)) { | |
1423 | command_list = (struct scsi_cmnd *)command->SCp.buffer; | |
1424 | command->SCp.buffer = NULL; | |
1425 | command->result = DID_OK << 16 | |
1426 | | COMMAND_COMPLETE << 8 | |
1427 | | SAM_STAT_TASK_SET_FULL; | |
1428 | command->SCp.phase = AAC_OWNER_ERROR_HANDLER; | |
1429 | command->scsi_done(command); | |
1430 | } | |
1431 | retval = 0; | |
1432 | ||
1433 | out: | |
1434 | aac->in_reset = 0; | |
1435 | scsi_unblock_requests(host); | |
29c97684 SM |
1436 | if (jafo) { |
1437 | spin_lock_irq(host->host_lock); | |
1438 | } | |
1439 | return retval; | |
1440 | } | |
1441 | ||
1442 | int aac_reset_adapter(struct aac_dev * aac, int forced) | |
1443 | { | |
1444 | unsigned long flagv = 0; | |
1445 | int retval; | |
1446 | struct Scsi_Host * host; | |
1447 | ||
1448 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1449 | return -EBUSY; | |
1450 | ||
1451 | if (aac->in_reset) { | |
1452 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1453 | return -EBUSY; | |
1454 | } | |
1455 | aac->in_reset = 1; | |
1456 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1457 | ||
1458 | /* | |
1459 | * Wait for all commands to complete to this specific | |
1460 | * target (block maximum 60 seconds). Although not necessary, | |
1461 | * it does make us a good storage citizen. | |
1462 | */ | |
1463 | host = aac->scsi_host_ptr; | |
1464 | scsi_block_requests(host); | |
1465 | if (forced < 2) for (retval = 60; retval; --retval) { | |
1466 | struct scsi_device * dev; | |
1467 | struct scsi_cmnd * command; | |
1468 | int active = 0; | |
1469 | ||
1470 | __shost_for_each_device(dev, host) { | |
1471 | spin_lock_irqsave(&dev->list_lock, flagv); | |
1472 | list_for_each_entry(command, &dev->cmd_list, list) { | |
1473 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1474 | active++; | |
1475 | break; | |
1476 | } | |
1477 | } | |
1478 | spin_unlock_irqrestore(&dev->list_lock, flagv); | |
1479 | if (active) | |
1480 | break; | |
1481 | ||
1482 | } | |
1483 | /* | |
1484 | * We can exit If all the commands are complete | |
1485 | */ | |
1486 | if (active == 0) | |
1487 | break; | |
1488 | ssleep(1); | |
1489 | } | |
1490 | ||
1491 | /* Quiesce build, flush cache, write through mode */ | |
f858317d SM |
1492 | if (forced < 2) |
1493 | aac_send_shutdown(aac); | |
29c97684 | 1494 | spin_lock_irqsave(host->host_lock, flagv); |
f858317d | 1495 | retval = _aac_reset_adapter(aac, forced ? forced : ((aac_check_reset != 0) && (aac_check_reset != 1))); |
29c97684 SM |
1496 | spin_unlock_irqrestore(host->host_lock, flagv); |
1497 | ||
f858317d | 1498 | if ((forced < 2) && (retval == -ENODEV)) { |
29c97684 SM |
1499 | /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */ |
1500 | struct fib * fibctx = aac_fib_alloc(aac); | |
1501 | if (fibctx) { | |
1502 | struct aac_pause *cmd; | |
1503 | int status; | |
1504 | ||
1505 | aac_fib_init(fibctx); | |
1506 | ||
1507 | cmd = (struct aac_pause *) fib_data(fibctx); | |
1508 | ||
1509 | cmd->command = cpu_to_le32(VM_ContainerConfig); | |
1510 | cmd->type = cpu_to_le32(CT_PAUSE_IO); | |
1511 | cmd->timeout = cpu_to_le32(1); | |
1512 | cmd->min = cpu_to_le32(1); | |
1513 | cmd->noRescan = cpu_to_le32(1); | |
1514 | cmd->count = cpu_to_le32(0); | |
1515 | ||
1516 | status = aac_fib_send(ContainerCommand, | |
1517 | fibctx, | |
1518 | sizeof(struct aac_pause), | |
1519 | FsaNormal, | |
1520 | -2 /* Timeout silently */, 1, | |
1521 | NULL, NULL); | |
1522 | ||
1523 | if (status >= 0) | |
1524 | aac_fib_complete(fibctx); | |
cacb6dc3 PNRCEH |
1525 | /* FIB should be freed only after getting |
1526 | * the response from the F/W */ | |
1527 | if (status != -ERESTARTSYS) | |
1528 | aac_fib_free(fibctx); | |
29c97684 SM |
1529 | } |
1530 | } | |
1531 | ||
8c867b25 MH |
1532 | return retval; |
1533 | } | |
1534 | ||
1535 | int aac_check_health(struct aac_dev * aac) | |
1536 | { | |
1537 | int BlinkLED; | |
1538 | unsigned long time_now, flagv = 0; | |
1539 | struct list_head * entry; | |
1540 | struct Scsi_Host * host; | |
1541 | ||
1542 | /* Extending the scope of fib_lock slightly to protect aac->in_reset */ | |
1543 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1544 | return 0; | |
1545 | ||
1546 | if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) { | |
1547 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1548 | return 0; /* OK */ | |
1549 | } | |
1550 | ||
1551 | aac->in_reset = 1; | |
1552 | ||
1553 | /* Fake up an AIF: | |
1554 | * aac_aifcmd.command = AifCmdEventNotify = 1 | |
1555 | * aac_aifcmd.seqnum = 0xFFFFFFFF | |
1556 | * aac_aifcmd.data[0] = AifEnExpEvent = 23 | |
1557 | * aac_aifcmd.data[1] = AifExeFirmwarePanic = 3 | |
1558 | * aac.aifcmd.data[2] = AifHighPriority = 3 | |
1559 | * aac.aifcmd.data[3] = BlinkLED | |
1560 | */ | |
1561 | ||
1562 | time_now = jiffies/HZ; | |
1563 | entry = aac->fib_list.next; | |
1564 | ||
1565 | /* | |
1566 | * For each Context that is on the | |
1567 | * fibctxList, make a copy of the | |
1568 | * fib, and then set the event to wake up the | |
1569 | * thread that is waiting for it. | |
1570 | */ | |
1571 | while (entry != &aac->fib_list) { | |
1572 | /* | |
1573 | * Extract the fibctx | |
1574 | */ | |
1575 | struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next); | |
1576 | struct hw_fib * hw_fib; | |
1577 | struct fib * fib; | |
1578 | /* | |
1579 | * Check if the queue is getting | |
1580 | * backlogged | |
1581 | */ | |
1582 | if (fibctx->count > 20) { | |
1583 | /* | |
1584 | * It's *not* jiffies folks, | |
1585 | * but jiffies / HZ, so do not | |
1586 | * panic ... | |
1587 | */ | |
1588 | u32 time_last = fibctx->jiffies; | |
1589 | /* | |
1590 | * Has it been > 2 minutes | |
1591 | * since the last read off | |
1592 | * the queue? | |
1593 | */ | |
1594 | if ((time_now - time_last) > aif_timeout) { | |
1595 | entry = entry->next; | |
1596 | aac_close_fib_context(aac, fibctx); | |
1597 | continue; | |
1598 | } | |
1599 | } | |
1600 | /* | |
1601 | * Warning: no sleep allowed while | |
1602 | * holding spinlock | |
1603 | */ | |
4dbc22d7 SM |
1604 | hw_fib = kzalloc(sizeof(struct hw_fib), GFP_ATOMIC); |
1605 | fib = kzalloc(sizeof(struct fib), GFP_ATOMIC); | |
8c867b25 MH |
1606 | if (fib && hw_fib) { |
1607 | struct aac_aifcmd * aif; | |
1608 | ||
a8166a52 | 1609 | fib->hw_fib_va = hw_fib; |
8c867b25 MH |
1610 | fib->dev = aac; |
1611 | aac_fib_init(fib); | |
1612 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
1613 | fib->size = sizeof (struct fib); | |
1614 | fib->data = hw_fib->data; | |
1615 | aif = (struct aac_aifcmd *)hw_fib->data; | |
1616 | aif->command = cpu_to_le32(AifCmdEventNotify); | |
a3940da5 SM |
1617 | aif->seqnum = cpu_to_le32(0xFFFFFFFF); |
1618 | ((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent); | |
1619 | ((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic); | |
1620 | ((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority); | |
1621 | ((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED); | |
8c867b25 MH |
1622 | |
1623 | /* | |
1624 | * Put the FIB onto the | |
1625 | * fibctx's fibs | |
1626 | */ | |
1627 | list_add_tail(&fib->fiblink, &fibctx->fib_list); | |
1628 | fibctx->count++; | |
1629 | /* | |
1630 | * Set the event to wake up the | |
1631 | * thread that will waiting. | |
1632 | */ | |
1633 | up(&fibctx->wait_sem); | |
1634 | } else { | |
1635 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1636 | kfree(fib); | |
1637 | kfree(hw_fib); | |
1638 | } | |
1639 | entry = entry->next; | |
1640 | } | |
1641 | ||
1642 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1643 | ||
1644 | if (BlinkLED < 0) { | |
1645 | printk(KERN_ERR "%s: Host adapter dead %d\n", aac->name, BlinkLED); | |
1646 | goto out; | |
1647 | } | |
1648 | ||
1649 | printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED); | |
1650 | ||
2f7ecc55 | 1651 | if (!aac_check_reset || ((aac_check_reset == 1) && |
a3940da5 SM |
1652 | (aac->supplement_adapter_info.SupportedOptions2 & |
1653 | AAC_OPTION_IGNORE_RESET))) | |
29c97684 | 1654 | goto out; |
8c867b25 | 1655 | host = aac->scsi_host_ptr; |
29c97684 SM |
1656 | if (aac->thread->pid != current->pid) |
1657 | spin_lock_irqsave(host->host_lock, flagv); | |
f858317d | 1658 | BlinkLED = _aac_reset_adapter(aac, aac_check_reset != 1); |
29c97684 SM |
1659 | if (aac->thread->pid != current->pid) |
1660 | spin_unlock_irqrestore(host->host_lock, flagv); | |
8c867b25 MH |
1661 | return BlinkLED; |
1662 | ||
1663 | out: | |
1664 | aac->in_reset = 0; | |
1665 | return BlinkLED; | |
1666 | } | |
1667 | ||
1668 | ||
1da177e4 LT |
1669 | /** |
1670 | * aac_command_thread - command processing thread | |
1671 | * @dev: Adapter to monitor | |
1672 | * | |
1673 | * Waits on the commandready event in it's queue. When the event gets set | |
1674 | * it will pull FIBs off it's queue. It will continue to pull FIBs off | |
1675 | * until the queue is empty. When the queue is empty it will wait for | |
1676 | * more FIBs. | |
1677 | */ | |
8ce3eca4 | 1678 | |
fe27381d | 1679 | int aac_command_thread(void *data) |
1da177e4 | 1680 | { |
fe27381d | 1681 | struct aac_dev *dev = data; |
1da177e4 LT |
1682 | struct hw_fib *hw_fib, *hw_newfib; |
1683 | struct fib *fib, *newfib; | |
1da177e4 LT |
1684 | struct aac_fib_context *fibctx; |
1685 | unsigned long flags; | |
1686 | DECLARE_WAITQUEUE(wait, current); | |
29c97684 SM |
1687 | unsigned long next_jiffies = jiffies + HZ; |
1688 | unsigned long next_check_jiffies = next_jiffies; | |
1689 | long difference = HZ; | |
1da177e4 LT |
1690 | |
1691 | /* | |
1692 | * We can only have one thread per adapter for AIF's. | |
1693 | */ | |
1694 | if (dev->aif_thread) | |
1695 | return -EINVAL; | |
fe27381d | 1696 | |
1da177e4 LT |
1697 | /* |
1698 | * Let the DPC know it has a place to send the AIF's to. | |
1699 | */ | |
1700 | dev->aif_thread = 1; | |
2f130980 | 1701 | add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); |
1da177e4 | 1702 | set_current_state(TASK_INTERRUPTIBLE); |
2f130980 | 1703 | dprintk ((KERN_INFO "aac_command_thread start\n")); |
8ce3eca4 | 1704 | while (1) { |
2f130980 MH |
1705 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1706 | while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) { | |
1da177e4 LT |
1707 | struct list_head *entry; |
1708 | struct aac_aifcmd * aifcmd; | |
1709 | ||
1710 | set_current_state(TASK_RUNNING); | |
8ce3eca4 | 1711 | |
2f130980 | 1712 | entry = dev->queues->queue[HostNormCmdQueue].cmdq.next; |
1da177e4 | 1713 | list_del(entry); |
8ce3eca4 | 1714 | |
2f130980 | 1715 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1716 | fib = list_entry(entry, struct fib, fiblink); |
1717 | /* | |
8ce3eca4 SM |
1718 | * We will process the FIB here or pass it to a |
1719 | * worker thread that is TBD. We Really can't | |
1da177e4 LT |
1720 | * do anything at this point since we don't have |
1721 | * anything defined for this thread to do. | |
1722 | */ | |
a8166a52 | 1723 | hw_fib = fib->hw_fib_va; |
1da177e4 LT |
1724 | memset(fib, 0, sizeof(struct fib)); |
1725 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
8ce3eca4 | 1726 | fib->size = sizeof(struct fib); |
a8166a52 | 1727 | fib->hw_fib_va = hw_fib; |
1da177e4 LT |
1728 | fib->data = hw_fib->data; |
1729 | fib->dev = dev; | |
1730 | /* | |
1731 | * We only handle AifRequest fibs from the adapter. | |
1732 | */ | |
1733 | aifcmd = (struct aac_aifcmd *) hw_fib->data; | |
1734 | if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) { | |
1735 | /* Handle Driver Notify Events */ | |
131256cf | 1736 | aac_handle_aif(dev, fib); |
56b58712 | 1737 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1738 | aac_fib_adapter_complete(fib, (u16)sizeof(u32)); |
1da177e4 | 1739 | } else { |
1da177e4 LT |
1740 | /* The u32 here is important and intended. We are using |
1741 | 32bit wrapping time to fit the adapter field */ | |
8ce3eca4 | 1742 | |
1da177e4 LT |
1743 | u32 time_now, time_last; |
1744 | unsigned long flagv; | |
2f130980 MH |
1745 | unsigned num; |
1746 | struct hw_fib ** hw_fib_pool, ** hw_fib_p; | |
1747 | struct fib ** fib_pool, ** fib_p; | |
8ce3eca4 | 1748 | |
131256cf | 1749 | /* Sniff events */ |
8ce3eca4 | 1750 | if ((aifcmd->command == |
131256cf | 1751 | cpu_to_le32(AifCmdEventNotify)) || |
8ce3eca4 | 1752 | (aifcmd->command == |
131256cf MH |
1753 | cpu_to_le32(AifCmdJobProgress))) { |
1754 | aac_handle_aif(dev, fib); | |
1755 | } | |
29c97684 | 1756 | |
1da177e4 LT |
1757 | time_now = jiffies/HZ; |
1758 | ||
2f130980 MH |
1759 | /* |
1760 | * Warning: no sleep allowed while | |
1761 | * holding spinlock. We take the estimate | |
1762 | * and pre-allocate a set of fibs outside the | |
1763 | * lock. | |
1764 | */ | |
1765 | num = le32_to_cpu(dev->init->AdapterFibsSize) | |
1766 | / sizeof(struct hw_fib); /* some extra */ | |
1767 | spin_lock_irqsave(&dev->fib_lock, flagv); | |
1768 | entry = dev->fib_list.next; | |
1769 | while (entry != &dev->fib_list) { | |
1770 | entry = entry->next; | |
1771 | ++num; | |
1772 | } | |
1773 | spin_unlock_irqrestore(&dev->fib_lock, flagv); | |
1774 | hw_fib_pool = NULL; | |
1775 | fib_pool = NULL; | |
1776 | if (num | |
1777 | && ((hw_fib_pool = kmalloc(sizeof(struct hw_fib *) * num, GFP_KERNEL))) | |
1778 | && ((fib_pool = kmalloc(sizeof(struct fib *) * num, GFP_KERNEL)))) { | |
1779 | hw_fib_p = hw_fib_pool; | |
1780 | fib_p = fib_pool; | |
1781 | while (hw_fib_p < &hw_fib_pool[num]) { | |
1782 | if (!(*(hw_fib_p++) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL))) { | |
1783 | --hw_fib_p; | |
1784 | break; | |
1785 | } | |
1786 | if (!(*(fib_p++) = kmalloc(sizeof(struct fib), GFP_KERNEL))) { | |
1787 | kfree(*(--hw_fib_p)); | |
1788 | break; | |
1789 | } | |
1790 | } | |
1791 | if ((num = hw_fib_p - hw_fib_pool) == 0) { | |
1792 | kfree(fib_pool); | |
1793 | fib_pool = NULL; | |
1794 | kfree(hw_fib_pool); | |
1795 | hw_fib_pool = NULL; | |
1796 | } | |
c9475cb0 | 1797 | } else { |
2f130980 MH |
1798 | kfree(hw_fib_pool); |
1799 | hw_fib_pool = NULL; | |
1800 | } | |
1da177e4 LT |
1801 | spin_lock_irqsave(&dev->fib_lock, flagv); |
1802 | entry = dev->fib_list.next; | |
1803 | /* | |
8ce3eca4 | 1804 | * For each Context that is on the |
1da177e4 LT |
1805 | * fibctxList, make a copy of the |
1806 | * fib, and then set the event to wake up the | |
1807 | * thread that is waiting for it. | |
1808 | */ | |
2f130980 MH |
1809 | hw_fib_p = hw_fib_pool; |
1810 | fib_p = fib_pool; | |
1da177e4 LT |
1811 | while (entry != &dev->fib_list) { |
1812 | /* | |
1813 | * Extract the fibctx | |
1814 | */ | |
1815 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
1816 | /* | |
1817 | * Check if the queue is getting | |
1818 | * backlogged | |
1819 | */ | |
1820 | if (fibctx->count > 20) | |
1821 | { | |
1822 | /* | |
1823 | * It's *not* jiffies folks, | |
1824 | * but jiffies / HZ so do not | |
1825 | * panic ... | |
1826 | */ | |
1827 | time_last = fibctx->jiffies; | |
1828 | /* | |
8ce3eca4 | 1829 | * Has it been > 2 minutes |
1da177e4 LT |
1830 | * since the last read off |
1831 | * the queue? | |
1832 | */ | |
404d9a90 | 1833 | if ((time_now - time_last) > aif_timeout) { |
1da177e4 LT |
1834 | entry = entry->next; |
1835 | aac_close_fib_context(dev, fibctx); | |
1836 | continue; | |
1837 | } | |
1838 | } | |
1839 | /* | |
1840 | * Warning: no sleep allowed while | |
1841 | * holding spinlock | |
1842 | */ | |
2f130980 MH |
1843 | if (hw_fib_p < &hw_fib_pool[num]) { |
1844 | hw_newfib = *hw_fib_p; | |
1845 | *(hw_fib_p++) = NULL; | |
1846 | newfib = *fib_p; | |
1847 | *(fib_p++) = NULL; | |
1da177e4 LT |
1848 | /* |
1849 | * Make the copy of the FIB | |
1850 | */ | |
1851 | memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib)); | |
1852 | memcpy(newfib, fib, sizeof(struct fib)); | |
a8166a52 | 1853 | newfib->hw_fib_va = hw_newfib; |
1da177e4 LT |
1854 | /* |
1855 | * Put the FIB onto the | |
1856 | * fibctx's fibs | |
1857 | */ | |
1858 | list_add_tail(&newfib->fiblink, &fibctx->fib_list); | |
1859 | fibctx->count++; | |
8ce3eca4 | 1860 | /* |
1da177e4 | 1861 | * Set the event to wake up the |
2f130980 | 1862 | * thread that is waiting. |
1da177e4 LT |
1863 | */ |
1864 | up(&fibctx->wait_sem); | |
1865 | } else { | |
1866 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1da177e4 LT |
1867 | } |
1868 | entry = entry->next; | |
1869 | } | |
1870 | /* | |
1871 | * Set the status of this FIB | |
1872 | */ | |
56b58712 | 1873 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); |
bfb35aa8 | 1874 | aac_fib_adapter_complete(fib, sizeof(u32)); |
1da177e4 | 1875 | spin_unlock_irqrestore(&dev->fib_lock, flagv); |
2f130980 MH |
1876 | /* Free up the remaining resources */ |
1877 | hw_fib_p = hw_fib_pool; | |
1878 | fib_p = fib_pool; | |
1879 | while (hw_fib_p < &hw_fib_pool[num]) { | |
c9475cb0 JJ |
1880 | kfree(*hw_fib_p); |
1881 | kfree(*fib_p); | |
2f130980 MH |
1882 | ++fib_p; |
1883 | ++hw_fib_p; | |
1884 | } | |
c9475cb0 JJ |
1885 | kfree(hw_fib_pool); |
1886 | kfree(fib_pool); | |
1da177e4 | 1887 | } |
1da177e4 | 1888 | kfree(fib); |
2f130980 | 1889 | spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags); |
1da177e4 LT |
1890 | } |
1891 | /* | |
1892 | * There are no more AIF's | |
1893 | */ | |
2f130980 | 1894 | spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags); |
29c97684 SM |
1895 | |
1896 | /* | |
1897 | * Background activity | |
1898 | */ | |
1899 | if ((time_before(next_check_jiffies,next_jiffies)) | |
1900 | && ((difference = next_check_jiffies - jiffies) <= 0)) { | |
1901 | next_check_jiffies = next_jiffies; | |
1902 | if (aac_check_health(dev) == 0) { | |
1903 | difference = ((long)(unsigned)check_interval) | |
1904 | * HZ; | |
1905 | next_check_jiffies = jiffies + difference; | |
1906 | } else if (!dev->queues) | |
1907 | break; | |
1908 | } | |
1909 | if (!time_before(next_check_jiffies,next_jiffies) | |
1910 | && ((difference = next_jiffies - jiffies) <= 0)) { | |
1911 | struct timeval now; | |
1912 | int ret; | |
1913 | ||
1914 | /* Don't even try to talk to adapter if its sick */ | |
1915 | ret = aac_check_health(dev); | |
1916 | if (!ret && !dev->queues) | |
1917 | break; | |
1918 | next_check_jiffies = jiffies | |
1919 | + ((long)(unsigned)check_interval) | |
1920 | * HZ; | |
1921 | do_gettimeofday(&now); | |
1922 | ||
1923 | /* Synchronize our watches */ | |
1924 | if (((1000000 - (1000000 / HZ)) > now.tv_usec) | |
1925 | && (now.tv_usec > (1000000 / HZ))) | |
1926 | difference = (((1000000 - now.tv_usec) * HZ) | |
1927 | + 500000) / 1000000; | |
1928 | else if (ret == 0) { | |
1929 | struct fib *fibptr; | |
1930 | ||
1931 | if ((fibptr = aac_fib_alloc(dev))) { | |
cacb6dc3 | 1932 | int status; |
f3307f72 | 1933 | __le32 *info; |
29c97684 SM |
1934 | |
1935 | aac_fib_init(fibptr); | |
1936 | ||
f3307f72 | 1937 | info = (__le32 *) fib_data(fibptr); |
29c97684 SM |
1938 | if (now.tv_usec > 500000) |
1939 | ++now.tv_sec; | |
1940 | ||
1941 | *info = cpu_to_le32(now.tv_sec); | |
1942 | ||
cacb6dc3 | 1943 | status = aac_fib_send(SendHostTime, |
29c97684 SM |
1944 | fibptr, |
1945 | sizeof(*info), | |
1946 | FsaNormal, | |
1947 | 1, 1, | |
1948 | NULL, | |
1949 | NULL); | |
cacb6dc3 PNRCEH |
1950 | /* Do not set XferState to zero unless |
1951 | * receives a response from F/W */ | |
1952 | if (status >= 0) | |
1953 | aac_fib_complete(fibptr); | |
1954 | /* FIB should be freed only after | |
1955 | * getting the response from the F/W */ | |
1956 | if (status != -ERESTARTSYS) | |
1957 | aac_fib_free(fibptr); | |
29c97684 SM |
1958 | } |
1959 | difference = (long)(unsigned)update_interval*HZ; | |
1960 | } else { | |
1961 | /* retry shortly */ | |
1962 | difference = 10 * HZ; | |
1963 | } | |
1964 | next_jiffies = jiffies + difference; | |
1965 | if (time_before(next_check_jiffies,next_jiffies)) | |
1966 | difference = next_check_jiffies - jiffies; | |
1967 | } | |
1968 | if (difference <= 0) | |
1969 | difference = 1; | |
1970 | set_current_state(TASK_INTERRUPTIBLE); | |
1971 | schedule_timeout(difference); | |
1da177e4 | 1972 | |
fe27381d | 1973 | if (kthread_should_stop()) |
1da177e4 | 1974 | break; |
1da177e4 | 1975 | } |
2f130980 MH |
1976 | if (dev->queues) |
1977 | remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); | |
1da177e4 | 1978 | dev->aif_thread = 0; |
2f130980 | 1979 | return 0; |
1da177e4 | 1980 | } |