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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 | 8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
1d4bcdad RAR |
9 | * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) |
10 | * 2016-2017 Microsemi Corp. (aacraid@microsemi.com) | |
1da177e4 LT |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2, or (at your option) | |
15 | * any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; see the file COPYING. If not, write to | |
24 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | * | |
26 | * Module Name: | |
27 | * commsup.c | |
28 | * | |
29 | * Abstract: Contain all routines that are required for FSA host/adapter | |
7c00ffa3 | 30 | * communication. |
1da177e4 LT |
31 | * |
32 | */ | |
33 | ||
34 | #include <linux/kernel.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/sched.h> | |
38 | #include <linux/pci.h> | |
39 | #include <linux/spinlock.h> | |
40 | #include <linux/slab.h> | |
41 | #include <linux/completion.h> | |
42 | #include <linux/blkdev.h> | |
164006da | 43 | #include <linux/delay.h> |
fe27381d | 44 | #include <linux/kthread.h> |
6a3670c4 | 45 | #include <linux/interrupt.h> |
6188e10d | 46 | #include <linux/semaphore.h> |
abd03305 | 47 | #include <linux/bcd.h> |
8c867b25 | 48 | #include <scsi/scsi.h> |
7c00ffa3 | 49 | #include <scsi/scsi_host.h> |
131256cf | 50 | #include <scsi/scsi_device.h> |
8c867b25 | 51 | #include <scsi/scsi_cmnd.h> |
1da177e4 LT |
52 | |
53 | #include "aacraid.h" | |
54 | ||
55 | /** | |
56 | * fib_map_alloc - allocate the fib objects | |
57 | * @dev: Adapter to allocate for | |
58 | * | |
59 | * Allocate and map the shared PCI space for the FIB blocks used to | |
60 | * talk to the Adaptec firmware. | |
61 | */ | |
8ce3eca4 | 62 | |
1da177e4 LT |
63 | static int fib_map_alloc(struct aac_dev *dev) |
64 | { | |
932cc3d3 RAR |
65 | if (dev->max_fib_size > AAC_MAX_NATIVE_SIZE) |
66 | dev->max_cmd_size = AAC_MAX_NATIVE_SIZE; | |
67 | else | |
68 | dev->max_cmd_size = dev->max_fib_size; | |
5a05cc7c RAR |
69 | if (dev->max_fib_size < AAC_MAX_NATIVE_SIZE) { |
70 | dev->max_cmd_size = AAC_MAX_NATIVE_SIZE; | |
71 | } else { | |
72 | dev->max_cmd_size = dev->max_fib_size; | |
73 | } | |
932cc3d3 | 74 | |
7c00ffa3 | 75 | dprintk((KERN_INFO |
d74d9d03 MR |
76 | "allocate hardware fibs dma_alloc_coherent(%p, %d * (%d + %d), %p)\n", |
77 | &dev->pdev->dev, dev->max_cmd_size, dev->scsi_host_ptr->can_queue, | |
7c00ffa3 | 78 | AAC_NUM_MGT_FIB, &dev->hw_fib_pa)); |
d74d9d03 | 79 | dev->hw_fib_va = dma_alloc_coherent(&dev->pdev->dev, |
932cc3d3 | 80 | (dev->max_cmd_size + sizeof(struct aac_fib_xporthdr)) |
e8b12f0f | 81 | * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1), |
d74d9d03 | 82 | &dev->hw_fib_pa, GFP_KERNEL); |
e8b12f0f | 83 | if (dev->hw_fib_va == NULL) |
1da177e4 LT |
84 | return -ENOMEM; |
85 | return 0; | |
86 | } | |
87 | ||
88 | /** | |
bfb35aa8 | 89 | * aac_fib_map_free - free the fib objects |
1da177e4 LT |
90 | * @dev: Adapter to free |
91 | * | |
92 | * Free the PCI mappings and the memory allocated for FIB blocks | |
93 | * on this adapter. | |
94 | */ | |
95 | ||
bfb35aa8 | 96 | void aac_fib_map_free(struct aac_dev *dev) |
1da177e4 | 97 | { |
45f41c4d RAR |
98 | size_t alloc_size; |
99 | size_t fib_size; | |
100 | int num_fibs; | |
101 | ||
102 | if(!dev->hw_fib_va || !dev->max_cmd_size) | |
103 | return; | |
104 | ||
105 | num_fibs = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB; | |
106 | fib_size = dev->max_fib_size + sizeof(struct aac_fib_xporthdr); | |
107 | alloc_size = fib_size * num_fibs + ALIGN32 - 1; | |
108 | ||
d74d9d03 MR |
109 | dma_free_coherent(&dev->pdev->dev, alloc_size, dev->hw_fib_va, |
110 | dev->hw_fib_pa); | |
45f41c4d | 111 | |
9ad5204d SM |
112 | dev->hw_fib_va = NULL; |
113 | dev->hw_fib_pa = 0; | |
1da177e4 LT |
114 | } |
115 | ||
3f4ce057 RAR |
116 | void aac_fib_vector_assign(struct aac_dev *dev) |
117 | { | |
118 | u32 i = 0; | |
119 | u32 vector = 1; | |
120 | struct fib *fibptr = NULL; | |
121 | ||
122 | for (i = 0, fibptr = &dev->fibs[i]; | |
123 | i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); | |
124 | i++, fibptr++) { | |
125 | if ((dev->max_msix == 1) || | |
126 | (i > ((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1) | |
127 | - dev->vector_cap))) { | |
128 | fibptr->vector_no = 0; | |
129 | } else { | |
130 | fibptr->vector_no = vector; | |
131 | vector++; | |
132 | if (vector == dev->max_msix) | |
133 | vector = 1; | |
134 | } | |
135 | } | |
136 | } | |
137 | ||
1da177e4 | 138 | /** |
bfb35aa8 | 139 | * aac_fib_setup - setup the fibs |
1da177e4 LT |
140 | * @dev: Adapter to set up |
141 | * | |
b595076a | 142 | * Allocate the PCI space for the fibs, map it and then initialise the |
1da177e4 LT |
143 | * fib area, the unmapped fib data and also the free list |
144 | */ | |
145 | ||
bfb35aa8 | 146 | int aac_fib_setup(struct aac_dev * dev) |
1da177e4 LT |
147 | { |
148 | struct fib *fibptr; | |
a8166a52 | 149 | struct hw_fib *hw_fib; |
1da177e4 LT |
150 | dma_addr_t hw_fib_pa; |
151 | int i; | |
a1751cda | 152 | u32 max_cmds; |
7c00ffa3 MH |
153 | |
154 | while (((i = fib_map_alloc(dev)) == -ENOMEM) | |
155 | && (dev->scsi_host_ptr->can_queue > (64 - AAC_NUM_MGT_FIB))) { | |
a1751cda RAR |
156 | max_cmds = (dev->scsi_host_ptr->can_queue+AAC_NUM_MGT_FIB) >> 1; |
157 | dev->scsi_host_ptr->can_queue = max_cmds - AAC_NUM_MGT_FIB; | |
158 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) | |
159 | dev->init->r7.max_io_commands = cpu_to_le32(max_cmds); | |
7c00ffa3 MH |
160 | } |
161 | if (i<0) | |
1da177e4 | 162 | return -ENOMEM; |
8ce3eca4 | 163 | |
e8b12f0f | 164 | memset(dev->hw_fib_va, 0, |
5a05cc7c | 165 | (dev->max_cmd_size + sizeof(struct aac_fib_xporthdr)) * |
e8b12f0f MR |
166 | (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); |
167 | ||
45f41c4d RAR |
168 | /* 32 byte alignment for PMC */ |
169 | hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1); | |
170 | hw_fib = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + | |
171 | (hw_fib_pa - dev->hw_fib_pa)); | |
172 | ||
e8b12f0f | 173 | /* add Xport header */ |
45f41c4d | 174 | hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + |
e8b12f0f | 175 | sizeof(struct aac_fib_xporthdr)); |
45f41c4d | 176 | hw_fib_pa += sizeof(struct aac_fib_xporthdr); |
e8b12f0f | 177 | |
1da177e4 LT |
178 | /* |
179 | * Initialise the fibs | |
180 | */ | |
8ce3eca4 SM |
181 | for (i = 0, fibptr = &dev->fibs[i]; |
182 | i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); | |
183 | i++, fibptr++) | |
1da177e4 | 184 | { |
85d22bbf | 185 | fibptr->flags = 0; |
6bf3b630 | 186 | fibptr->size = sizeof(struct fib); |
1da177e4 | 187 | fibptr->dev = dev; |
a8166a52 MH |
188 | fibptr->hw_fib_va = hw_fib; |
189 | fibptr->data = (void *) fibptr->hw_fib_va->data; | |
1da177e4 | 190 | fibptr->next = fibptr+1; /* Forward chain the fibs */ |
6de76cfc | 191 | sema_init(&fibptr->event_wait, 0); |
1da177e4 | 192 | spin_lock_init(&fibptr->event_lock); |
a8166a52 | 193 | hw_fib->header.XferState = cpu_to_le32(0xffffffff); |
5a05cc7c RAR |
194 | hw_fib->header.SenderSize = |
195 | cpu_to_le16(dev->max_fib_size); /* ?? max_cmd_size */ | |
1da177e4 | 196 | fibptr->hw_fib_pa = hw_fib_pa; |
5a05cc7c RAR |
197 | fibptr->hw_sgl_pa = hw_fib_pa + |
198 | offsetof(struct aac_hba_cmd_req, sge[2]); | |
199 | /* | |
200 | * one element is for the ptr to the separate sg list, | |
201 | * second element for 32 byte alignment | |
202 | */ | |
203 | fibptr->hw_error_pa = hw_fib_pa + | |
204 | offsetof(struct aac_native_hba, resp.resp_bytes[0]); | |
205 | ||
e8b12f0f | 206 | hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + |
932cc3d3 | 207 | dev->max_cmd_size + sizeof(struct aac_fib_xporthdr)); |
e8b12f0f | 208 | hw_fib_pa = hw_fib_pa + |
932cc3d3 | 209 | dev->max_cmd_size + sizeof(struct aac_fib_xporthdr); |
1da177e4 | 210 | } |
3f4ce057 RAR |
211 | |
212 | /* | |
213 | *Assign vector numbers to fibs | |
214 | */ | |
215 | aac_fib_vector_assign(dev); | |
216 | ||
1da177e4 LT |
217 | /* |
218 | * Add the fib chain to the free list | |
219 | */ | |
7c00ffa3 | 220 | dev->fibs[dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1].next = NULL; |
1da177e4 | 221 | /* |
6bf3b630 RAR |
222 | * Set 8 fibs aside for management tools |
223 | */ | |
224 | dev->free_fib = &dev->fibs[dev->scsi_host_ptr->can_queue]; | |
1da177e4 LT |
225 | return 0; |
226 | } | |
227 | ||
6bf3b630 RAR |
228 | /** |
229 | * aac_fib_alloc_tag-allocate a fib using tags | |
230 | * @dev: Adapter to allocate the fib for | |
231 | * | |
232 | * Allocate a fib from the adapter fib pool using tags | |
233 | * from the blk layer. | |
234 | */ | |
235 | ||
236 | struct fib *aac_fib_alloc_tag(struct aac_dev *dev, struct scsi_cmnd *scmd) | |
237 | { | |
238 | struct fib *fibptr; | |
239 | ||
240 | fibptr = &dev->fibs[scmd->request->tag]; | |
241 | /* | |
242 | * Null out fields that depend on being zero at the start of | |
243 | * each I/O | |
244 | */ | |
245 | fibptr->hw_fib_va->header.XferState = 0; | |
246 | fibptr->type = FSAFS_NTC_FIB_CONTEXT; | |
247 | fibptr->callback_data = NULL; | |
248 | fibptr->callback = NULL; | |
249 | ||
250 | return fibptr; | |
251 | } | |
252 | ||
1da177e4 | 253 | /** |
bfb35aa8 | 254 | * aac_fib_alloc - allocate a fib |
1da177e4 LT |
255 | * @dev: Adapter to allocate the fib for |
256 | * | |
257 | * Allocate a fib from the adapter fib pool. If the pool is empty we | |
7c00ffa3 | 258 | * return NULL. |
1da177e4 | 259 | */ |
8ce3eca4 | 260 | |
bfb35aa8 | 261 | struct fib *aac_fib_alloc(struct aac_dev *dev) |
1da177e4 LT |
262 | { |
263 | struct fib * fibptr; | |
264 | unsigned long flags; | |
265 | spin_lock_irqsave(&dev->fib_lock, flags); | |
8ce3eca4 | 266 | fibptr = dev->free_fib; |
7c00ffa3 MH |
267 | if(!fibptr){ |
268 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
269 | return fibptr; | |
270 | } | |
1da177e4 LT |
271 | dev->free_fib = fibptr->next; |
272 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
273 | /* | |
274 | * Set the proper node type code and node byte size | |
275 | */ | |
276 | fibptr->type = FSAFS_NTC_FIB_CONTEXT; | |
277 | fibptr->size = sizeof(struct fib); | |
278 | /* | |
279 | * Null out fields that depend on being zero at the start of | |
280 | * each I/O | |
281 | */ | |
a8166a52 | 282 | fibptr->hw_fib_va->header.XferState = 0; |
b6ef70f3 | 283 | fibptr->flags = 0; |
1da177e4 LT |
284 | fibptr->callback = NULL; |
285 | fibptr->callback_data = NULL; | |
286 | ||
287 | return fibptr; | |
288 | } | |
289 | ||
290 | /** | |
bfb35aa8 | 291 | * aac_fib_free - free a fib |
1da177e4 LT |
292 | * @fibptr: fib to free up |
293 | * | |
294 | * Frees up a fib and places it on the appropriate queue | |
1da177e4 | 295 | */ |
8ce3eca4 | 296 | |
bfb35aa8 | 297 | void aac_fib_free(struct fib *fibptr) |
1da177e4 | 298 | { |
ef616233 | 299 | unsigned long flags; |
cacb6dc3 | 300 | |
ef616233 | 301 | if (fibptr->done == 2) |
cacb6dc3 | 302 | return; |
1da177e4 LT |
303 | |
304 | spin_lock_irqsave(&fibptr->dev->fib_lock, flags); | |
03d44337 | 305 | if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 306 | aac_config.fib_timeouts++; |
5a05cc7c RAR |
307 | if (!(fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) && |
308 | fibptr->hw_fib_va->header.XferState != 0) { | |
03d44337 MH |
309 | printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", |
310 | (void*)fibptr, | |
311 | le32_to_cpu(fibptr->hw_fib_va->header.XferState)); | |
312 | } | |
313 | fibptr->next = fibptr->dev->free_fib; | |
314 | fibptr->dev->free_fib = fibptr; | |
1da177e4 LT |
315 | spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); |
316 | } | |
317 | ||
318 | /** | |
bfb35aa8 | 319 | * aac_fib_init - initialise a fib |
1da177e4 | 320 | * @fibptr: The fib to initialize |
8ce3eca4 | 321 | * |
1da177e4 LT |
322 | * Set up the generic fib fields ready for use |
323 | */ | |
8ce3eca4 | 324 | |
bfb35aa8 | 325 | void aac_fib_init(struct fib *fibptr) |
1da177e4 | 326 | { |
a8166a52 | 327 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
1da177e4 | 328 | |
85d22bbf | 329 | memset(&hw_fib->header, 0, sizeof(struct aac_fibhdr)); |
1da177e4 | 330 | hw_fib->header.StructType = FIB_MAGIC; |
7c00ffa3 MH |
331 | hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size); |
332 | hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable); | |
85d22bbf | 333 | hw_fib->header.u.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa); |
7c00ffa3 | 334 | hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size); |
1da177e4 LT |
335 | } |
336 | ||
337 | /** | |
338 | * fib_deallocate - deallocate a fib | |
339 | * @fibptr: fib to deallocate | |
340 | * | |
341 | * Will deallocate and return to the free pool the FIB pointed to by the | |
342 | * caller. | |
343 | */ | |
8ce3eca4 | 344 | |
4833869e | 345 | static void fib_dealloc(struct fib * fibptr) |
1da177e4 | 346 | { |
a8166a52 | 347 | struct hw_fib *hw_fib = fibptr->hw_fib_va; |
8ce3eca4 | 348 | hw_fib->header.XferState = 0; |
1da177e4 LT |
349 | } |
350 | ||
351 | /* | |
352 | * Commuication primitives define and support the queuing method we use to | |
353 | * support host to adapter commuication. All queue accesses happen through | |
354 | * these routines and are the only routines which have a knowledge of the | |
355 | * how these queues are implemented. | |
356 | */ | |
8ce3eca4 | 357 | |
1da177e4 LT |
358 | /** |
359 | * aac_get_entry - get a queue entry | |
360 | * @dev: Adapter | |
361 | * @qid: Queue Number | |
362 | * @entry: Entry return | |
363 | * @index: Index return | |
364 | * @nonotify: notification control | |
365 | * | |
366 | * With a priority the routine returns a queue entry if the queue has free entries. If the queue | |
367 | * is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is | |
368 | * returned. | |
369 | */ | |
8ce3eca4 | 370 | |
1da177e4 LT |
371 | static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) |
372 | { | |
373 | struct aac_queue * q; | |
bed30de4 | 374 | unsigned long idx; |
1da177e4 LT |
375 | |
376 | /* | |
377 | * All of the queues wrap when they reach the end, so we check | |
378 | * to see if they have reached the end and if they have we just | |
379 | * set the index back to zero. This is a wrap. You could or off | |
380 | * the high bits in all updates but this is a bit faster I think. | |
381 | */ | |
382 | ||
383 | q = &dev->queues->queue[qid]; | |
bed30de4 MH |
384 | |
385 | idx = *index = le32_to_cpu(*(q->headers.producer)); | |
386 | /* Interrupt Moderation, only interrupt for first two entries */ | |
387 | if (idx != le32_to_cpu(*(q->headers.consumer))) { | |
388 | if (--idx == 0) { | |
1640a2c3 | 389 | if (qid == AdapNormCmdQueue) |
bed30de4 | 390 | idx = ADAP_NORM_CMD_ENTRIES; |
1640a2c3 | 391 | else |
bed30de4 MH |
392 | idx = ADAP_NORM_RESP_ENTRIES; |
393 | } | |
394 | if (idx != le32_to_cpu(*(q->headers.consumer))) | |
8ce3eca4 | 395 | *nonotify = 1; |
bed30de4 | 396 | } |
1da177e4 | 397 | |
1640a2c3 | 398 | if (qid == AdapNormCmdQueue) { |
8ce3eca4 | 399 | if (*index >= ADAP_NORM_CMD_ENTRIES) |
1da177e4 | 400 | *index = 0; /* Wrap to front of the Producer Queue. */ |
1640a2c3 | 401 | } else { |
8ce3eca4 | 402 | if (*index >= ADAP_NORM_RESP_ENTRIES) |
1da177e4 LT |
403 | *index = 0; /* Wrap to front of the Producer Queue. */ |
404 | } | |
1da177e4 | 405 | |
8ce3eca4 SM |
406 | /* Queue is full */ |
407 | if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { | |
7c00ffa3 | 408 | printk(KERN_WARNING "Queue %d full, %u outstanding.\n", |
ef616233 | 409 | qid, atomic_read(&q->numpending)); |
1da177e4 LT |
410 | return 0; |
411 | } else { | |
8ce3eca4 | 412 | *entry = q->base + *index; |
1da177e4 LT |
413 | return 1; |
414 | } | |
8ce3eca4 | 415 | } |
1da177e4 LT |
416 | |
417 | /** | |
418 | * aac_queue_get - get the next free QE | |
419 | * @dev: Adapter | |
420 | * @index: Returned index | |
421 | * @priority: Priority of fib | |
422 | * @fib: Fib to associate with the queue entry | |
423 | * @wait: Wait if queue full | |
424 | * @fibptr: Driver fib object to go with fib | |
425 | * @nonotify: Don't notify the adapter | |
426 | * | |
427 | * Gets the next free QE off the requested priorty adapter command | |
428 | * queue and associates the Fib with the QE. The QE represented by | |
429 | * index is ready to insert on the queue when this routine returns | |
430 | * success. | |
431 | */ | |
432 | ||
28713324 | 433 | 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 |
434 | { |
435 | struct aac_entry * entry = NULL; | |
436 | int map = 0; | |
8ce3eca4 | 437 | |
1640a2c3 | 438 | if (qid == AdapNormCmdQueue) { |
1da177e4 | 439 | /* if no entries wait for some if caller wants to */ |
8ce3eca4 | 440 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
441 | printk(KERN_ERR "GetEntries failed\n"); |
442 | } | |
8ce3eca4 SM |
443 | /* |
444 | * Setup queue entry with a command, status and fib mapped | |
445 | */ | |
446 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
447 | map = 1; | |
1640a2c3 | 448 | } else { |
8ce3eca4 | 449 | while (!aac_get_entry(dev, qid, &entry, index, nonotify)) { |
1da177e4 LT |
450 | /* if no entries wait for some if caller wants to */ |
451 | } | |
8ce3eca4 SM |
452 | /* |
453 | * Setup queue entry with command, status and fib mapped | |
454 | */ | |
455 | entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size)); | |
456 | entry->addr = hw_fib->header.SenderFibAddress; | |
457 | /* Restore adapters pointer to the FIB */ | |
85d22bbf | 458 | hw_fib->header.u.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */ |
8ce3eca4 | 459 | map = 0; |
1da177e4 LT |
460 | } |
461 | /* | |
462 | * If MapFib is true than we need to map the Fib and put pointers | |
463 | * in the queue entry. | |
464 | */ | |
465 | if (map) | |
466 | entry->addr = cpu_to_le32(fibptr->hw_fib_pa); | |
467 | return 0; | |
468 | } | |
469 | ||
9fad09f7 RAR |
470 | #ifdef CONFIG_EEH |
471 | static inline int aac_check_eeh_failure(struct aac_dev *dev) | |
472 | { | |
473 | /* Check for an EEH failure for the given | |
474 | * device node. Function eeh_dev_check_failure() | |
475 | * returns 0 if there has not been an EEH error | |
476 | * otherwise returns a non-zero value. | |
477 | * | |
478 | * Need to be called before any PCI operation, | |
479 | * i.e.,before aac_adapter_check_health() | |
480 | */ | |
481 | struct eeh_dev *edev = pci_dev_to_eeh_dev(dev->pdev); | |
482 | ||
483 | if (eeh_dev_check_failure(edev)) { | |
484 | /* The EEH mechanisms will handle this | |
485 | * error and reset the device if | |
486 | * necessary. | |
487 | */ | |
488 | return 1; | |
489 | } | |
490 | return 0; | |
491 | } | |
492 | #else | |
493 | static inline int aac_check_eeh_failure(struct aac_dev *dev) | |
494 | { | |
495 | return 0; | |
496 | } | |
497 | #endif | |
498 | ||
1da177e4 | 499 | /* |
8ce3eca4 SM |
500 | * Define the highest level of host to adapter communication routines. |
501 | * These routines will support host to adapter FS commuication. These | |
1da177e4 LT |
502 | * routines have no knowledge of the commuication method used. This level |
503 | * sends and receives FIBs. This level has no knowledge of how these FIBs | |
504 | * get passed back and forth. | |
505 | */ | |
506 | ||
507 | /** | |
bfb35aa8 | 508 | * aac_fib_send - send a fib to the adapter |
1da177e4 LT |
509 | * @command: Command to send |
510 | * @fibptr: The fib | |
511 | * @size: Size of fib data area | |
512 | * @priority: Priority of Fib | |
513 | * @wait: Async/sync select | |
514 | * @reply: True if a reply is wanted | |
515 | * @callback: Called with reply | |
516 | * @callback_data: Passed to callback | |
517 | * | |
518 | * Sends the requested FIB to the adapter and optionally will wait for a | |
519 | * response FIB. If the caller does not wish to wait for a response than | |
520 | * an event to wait on must be supplied. This event will be set when a | |
521 | * response FIB is received from the adapter. | |
522 | */ | |
8ce3eca4 | 523 | |
bfb35aa8 MH |
524 | int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size, |
525 | int priority, int wait, int reply, fib_callback callback, | |
526 | void *callback_data) | |
1da177e4 | 527 | { |
1da177e4 | 528 | struct aac_dev * dev = fibptr->dev; |
a8166a52 | 529 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 530 | unsigned long flags = 0; |
cacb6dc3 | 531 | unsigned long mflags = 0; |
11604612 | 532 | unsigned long sflags = 0; |
cacb6dc3 | 533 | |
1da177e4 LT |
534 | if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned))) |
535 | return -EBUSY; | |
7d04d85a RAR |
536 | |
537 | if (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)) | |
538 | return -EINVAL; | |
539 | ||
1da177e4 | 540 | /* |
25985edc | 541 | * There are 5 cases with the wait and response requested flags. |
1da177e4 LT |
542 | * The only invalid cases are if the caller requests to wait and |
543 | * does not request a response and if the caller does not want a | |
544 | * response and the Fib is not allocated from pool. If a response | |
545 | * is not requesed the Fib will just be deallocaed by the DPC | |
546 | * routine when the response comes back from the adapter. No | |
8ce3eca4 | 547 | * further processing will be done besides deleting the Fib. We |
1da177e4 LT |
548 | * will have a debug mode where the adapter can notify the host |
549 | * it had a problem and the host can log that fact. | |
550 | */ | |
b6ef70f3 | 551 | fibptr->flags = 0; |
1da177e4 LT |
552 | if (wait && !reply) { |
553 | return -EINVAL; | |
554 | } else if (!wait && reply) { | |
555 | hw_fib->header.XferState |= cpu_to_le32(Async | ResponseExpected); | |
556 | FIB_COUNTER_INCREMENT(aac_config.AsyncSent); | |
557 | } else if (!wait && !reply) { | |
558 | hw_fib->header.XferState |= cpu_to_le32(NoResponseExpected); | |
559 | FIB_COUNTER_INCREMENT(aac_config.NoResponseSent); | |
560 | } else if (wait && reply) { | |
561 | hw_fib->header.XferState |= cpu_to_le32(ResponseExpected); | |
562 | FIB_COUNTER_INCREMENT(aac_config.NormalSent); | |
8ce3eca4 | 563 | } |
1da177e4 LT |
564 | /* |
565 | * Map the fib into 32bits by using the fib number | |
566 | */ | |
567 | ||
5a05cc7c RAR |
568 | hw_fib->header.SenderFibAddress = |
569 | cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2); | |
570 | ||
571 | /* use the same shifted value for handle to be compatible | |
572 | * with the new native hba command handle | |
573 | */ | |
574 | hw_fib->header.Handle = | |
575 | cpu_to_le32((((u32)(fibptr - dev->fibs)) << 2) + 1); | |
576 | ||
1da177e4 LT |
577 | /* |
578 | * Set FIB state to indicate where it came from and if we want a | |
579 | * response from the adapter. Also load the command from the | |
580 | * caller. | |
581 | * | |
582 | * Map the hw fib pointer as a 32bit value | |
583 | */ | |
584 | hw_fib->header.Command = cpu_to_le16(command); | |
585 | hw_fib->header.XferState |= cpu_to_le32(SentFromHost); | |
1da177e4 LT |
586 | /* |
587 | * Set the size of the Fib we want to send to the adapter | |
588 | */ | |
589 | hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size); | |
590 | if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) { | |
591 | return -EMSGSIZE; | |
8ce3eca4 | 592 | } |
1da177e4 LT |
593 | /* |
594 | * Get a queue entry connect the FIB to it and send an notify | |
595 | * the adapter a command is ready. | |
596 | */ | |
1640a2c3 | 597 | hw_fib->header.XferState |= cpu_to_le32(NormalPriority); |
1da177e4 | 598 | |
1da177e4 LT |
599 | /* |
600 | * Fill in the Callback and CallbackContext if we are not | |
601 | * going to wait. | |
602 | */ | |
603 | if (!wait) { | |
604 | fibptr->callback = callback; | |
605 | fibptr->callback_data = callback_data; | |
b6ef70f3 | 606 | fibptr->flags = FIB_CONTEXT_FLAG; |
1da177e4 | 607 | } |
1da177e4 LT |
608 | |
609 | fibptr->done = 0; | |
1da177e4 | 610 | |
1640a2c3 MH |
611 | FIB_COUNTER_INCREMENT(aac_config.FibsSent); |
612 | ||
1640a2c3 | 613 | dprintk((KERN_DEBUG "Fib contents:.\n")); |
8e0c5ebd MH |
614 | dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command))); |
615 | dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command))); | |
616 | dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState))); | |
a8166a52 | 617 | dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib_va)); |
1640a2c3 MH |
618 | dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa)); |
619 | dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr)); | |
620 | ||
c8f7b073 | 621 | if (!dev->queues) |
65101355 | 622 | return -EBUSY; |
1640a2c3 | 623 | |
cacb6dc3 PNRCEH |
624 | if (wait) { |
625 | ||
626 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
627 | if (dev->management_fib_count >= AAC_NUM_MGT_FIB) { | |
628 | printk(KERN_INFO "No management Fibs Available:%d\n", | |
629 | dev->management_fib_count); | |
630 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
631 | return -EBUSY; | |
632 | } | |
633 | dev->management_fib_count++; | |
634 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
1640a2c3 | 635 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 PNRCEH |
636 | } |
637 | ||
11604612 MR |
638 | if (dev->sync_mode) { |
639 | if (wait) | |
640 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
641 | spin_lock_irqsave(&dev->sync_lock, sflags); | |
642 | if (dev->sync_fib) { | |
643 | list_add_tail(&fibptr->fiblink, &dev->sync_fib_list); | |
644 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
645 | } else { | |
646 | dev->sync_fib = fibptr; | |
647 | spin_unlock_irqrestore(&dev->sync_lock, sflags); | |
648 | aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, | |
649 | (u32)fibptr->hw_fib_pa, 0, 0, 0, 0, 0, | |
650 | NULL, NULL, NULL, NULL, NULL); | |
651 | } | |
652 | if (wait) { | |
653 | fibptr->flags |= FIB_CONTEXT_FLAG_WAIT; | |
654 | if (down_interruptible(&fibptr->event_wait)) { | |
655 | fibptr->flags &= ~FIB_CONTEXT_FLAG_WAIT; | |
656 | return -EFAULT; | |
657 | } | |
658 | return 0; | |
659 | } | |
660 | return -EINPROGRESS; | |
661 | } | |
662 | ||
cacb6dc3 PNRCEH |
663 | if (aac_adapter_deliver(fibptr) != 0) { |
664 | printk(KERN_ERR "aac_fib_send: returned -EBUSY\n"); | |
665 | if (wait) { | |
666 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
667 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
668 | dev->management_fib_count--; | |
669 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
670 | } | |
671 | return -EBUSY; | |
672 | } | |
673 | ||
8e0c5ebd | 674 | |
1da177e4 | 675 | /* |
8ce3eca4 | 676 | * If the caller wanted us to wait for response wait now. |
1da177e4 | 677 | */ |
8ce3eca4 | 678 | |
1da177e4 LT |
679 | if (wait) { |
680 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
9203344c MH |
681 | /* Only set for first known interruptable command */ |
682 | if (wait < 0) { | |
683 | /* | |
684 | * *VERY* Dangerous to time out a command, the | |
685 | * assumption is made that we have no hope of | |
686 | * functioning because an interrupt routing or other | |
687 | * hardware failure has occurred. | |
688 | */ | |
30002f1c | 689 | unsigned long timeout = jiffies + (180 * HZ); /* 3 minutes */ |
9203344c | 690 | while (down_trylock(&fibptr->event_wait)) { |
33524b70 | 691 | int blink; |
30002f1c | 692 | if (time_is_before_eq_jiffies(timeout)) { |
28713324 | 693 | struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue]; |
ef616233 | 694 | atomic_dec(&q->numpending); |
9203344c | 695 | if (wait == -1) { |
bfb35aa8 | 696 | printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n" |
9203344c MH |
697 | "Usually a result of a PCI interrupt routing problem;\n" |
698 | "update mother board BIOS or consider utilizing one of\n" | |
699 | "the SAFE mode kernel options (acpi, apic etc)\n"); | |
700 | } | |
701 | return -ETIMEDOUT; | |
702 | } | |
9fad09f7 RAR |
703 | |
704 | if (aac_check_eeh_failure(dev)) | |
705 | return -EFAULT; | |
706 | ||
33524b70 MH |
707 | if ((blink = aac_adapter_check_health(dev)) > 0) { |
708 | if (wait == -1) { | |
709 | printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n" | |
710 | "Usually a result of a serious unrecoverable hardware problem\n", | |
711 | blink); | |
712 | } | |
713 | return -EFAULT; | |
714 | } | |
07beca2b RAR |
715 | /* |
716 | * Allow other processes / CPUS to use core | |
717 | */ | |
718 | schedule(); | |
9203344c | 719 | } |
0462590e | 720 | } else if (down_interruptible(&fibptr->event_wait)) { |
cacb6dc3 PNRCEH |
721 | /* Do nothing ... satisfy |
722 | * down_interruptible must_check */ | |
e6990c64 | 723 | } |
cacb6dc3 | 724 | |
33bb3b29 | 725 | spin_lock_irqsave(&fibptr->event_lock, flags); |
cacb6dc3 | 726 | if (fibptr->done == 0) { |
33bb3b29 | 727 | fibptr->done = 2; /* Tell interrupt we aborted */ |
c8f7b073 | 728 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
cacb6dc3 | 729 | return -ERESTARTSYS; |
c8f7b073 | 730 | } |
33bb3b29 | 731 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
125e1874 | 732 | BUG_ON(fibptr->done == 0); |
8ce3eca4 | 733 | |
912d4e88 | 734 | if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) |
1da177e4 | 735 | return -ETIMEDOUT; |
912d4e88 | 736 | return 0; |
1da177e4 LT |
737 | } |
738 | /* | |
739 | * If the user does not want a response than return success otherwise | |
740 | * return pending | |
741 | */ | |
742 | if (reply) | |
743 | return -EINPROGRESS; | |
744 | else | |
745 | return 0; | |
746 | } | |
747 | ||
5a05cc7c RAR |
748 | int aac_hba_send(u8 command, struct fib *fibptr, fib_callback callback, |
749 | void *callback_data) | |
750 | { | |
751 | struct aac_dev *dev = fibptr->dev; | |
752 | int wait; | |
753 | unsigned long flags = 0; | |
754 | unsigned long mflags = 0; | |
755 | ||
756 | fibptr->flags = (FIB_CONTEXT_FLAG | FIB_CONTEXT_FLAG_NATIVE_HBA); | |
757 | if (callback) { | |
758 | wait = 0; | |
759 | fibptr->callback = callback; | |
760 | fibptr->callback_data = callback_data; | |
761 | } else | |
762 | wait = 1; | |
763 | ||
764 | ||
765 | if (command == HBA_IU_TYPE_SCSI_CMD_REQ) { | |
766 | struct aac_hba_cmd_req *hbacmd = | |
767 | (struct aac_hba_cmd_req *)fibptr->hw_fib_va; | |
768 | ||
769 | hbacmd->iu_type = command; | |
770 | /* bit1 of request_id must be 0 */ | |
771 | hbacmd->request_id = | |
772 | cpu_to_le32((((u32)(fibptr - dev->fibs)) << 2) + 1); | |
773 | } else | |
774 | return -EINVAL; | |
775 | ||
776 | ||
777 | if (wait) { | |
778 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
779 | if (dev->management_fib_count >= AAC_NUM_MGT_FIB) { | |
780 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
781 | return -EBUSY; | |
782 | } | |
783 | dev->management_fib_count++; | |
784 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
785 | spin_lock_irqsave(&fibptr->event_lock, flags); | |
786 | } | |
787 | ||
788 | if (aac_adapter_deliver(fibptr) != 0) { | |
789 | if (wait) { | |
790 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
791 | spin_lock_irqsave(&dev->manage_lock, mflags); | |
792 | dev->management_fib_count--; | |
793 | spin_unlock_irqrestore(&dev->manage_lock, mflags); | |
794 | } | |
795 | return -EBUSY; | |
796 | } | |
797 | FIB_COUNTER_INCREMENT(aac_config.NativeSent); | |
798 | ||
799 | if (wait) { | |
9fad09f7 | 800 | |
5a05cc7c | 801 | spin_unlock_irqrestore(&fibptr->event_lock, flags); |
9fad09f7 RAR |
802 | |
803 | if (aac_check_eeh_failure(dev)) | |
804 | return -EFAULT; | |
805 | ||
5a05cc7c RAR |
806 | /* Only set for first known interruptable command */ |
807 | if (down_interruptible(&fibptr->event_wait)) { | |
808 | fibptr->done = 2; | |
809 | up(&fibptr->event_wait); | |
810 | } | |
811 | spin_lock_irqsave(&fibptr->event_lock, flags); | |
812 | if ((fibptr->done == 0) || (fibptr->done == 2)) { | |
813 | fibptr->done = 2; /* Tell interrupt we aborted */ | |
814 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
815 | return -ERESTARTSYS; | |
816 | } | |
817 | spin_unlock_irqrestore(&fibptr->event_lock, flags); | |
818 | WARN_ON(fibptr->done == 0); | |
819 | ||
820 | if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) | |
821 | return -ETIMEDOUT; | |
822 | ||
823 | return 0; | |
824 | } | |
825 | ||
826 | return -EINPROGRESS; | |
827 | } | |
828 | ||
8ce3eca4 | 829 | /** |
1da177e4 LT |
830 | * aac_consumer_get - get the top of the queue |
831 | * @dev: Adapter | |
832 | * @q: Queue | |
833 | * @entry: Return entry | |
834 | * | |
835 | * Will return a pointer to the entry on the top of the queue requested that | |
8ce3eca4 SM |
836 | * we are a consumer of, and return the address of the queue entry. It does |
837 | * not change the state of the queue. | |
1da177e4 LT |
838 | */ |
839 | ||
840 | int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry) | |
841 | { | |
842 | u32 index; | |
843 | int status; | |
844 | if (le32_to_cpu(*q->headers.producer) == le32_to_cpu(*q->headers.consumer)) { | |
845 | status = 0; | |
846 | } else { | |
847 | /* | |
848 | * The consumer index must be wrapped if we have reached | |
849 | * the end of the queue, else we just use the entry | |
850 | * pointed to by the header index | |
851 | */ | |
8ce3eca4 SM |
852 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
853 | index = 0; | |
1da177e4 | 854 | else |
8ce3eca4 | 855 | index = le32_to_cpu(*q->headers.consumer); |
1da177e4 LT |
856 | *entry = q->base + index; |
857 | status = 1; | |
858 | } | |
859 | return(status); | |
860 | } | |
861 | ||
862 | /** | |
863 | * aac_consumer_free - free consumer entry | |
864 | * @dev: Adapter | |
865 | * @q: Queue | |
866 | * @qid: Queue ident | |
867 | * | |
868 | * Frees up the current top of the queue we are a consumer of. If the | |
869 | * queue was full notify the producer that the queue is no longer full. | |
870 | */ | |
871 | ||
872 | void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) | |
873 | { | |
874 | int wasfull = 0; | |
875 | u32 notify; | |
876 | ||
877 | if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer)) | |
878 | wasfull = 1; | |
8ce3eca4 | 879 | |
1da177e4 LT |
880 | if (le32_to_cpu(*q->headers.consumer) >= q->entries) |
881 | *q->headers.consumer = cpu_to_le32(1); | |
882 | else | |
36b8dd1b | 883 | le32_add_cpu(q->headers.consumer, 1); |
8ce3eca4 | 884 | |
1da177e4 LT |
885 | if (wasfull) { |
886 | switch (qid) { | |
887 | ||
888 | case HostNormCmdQueue: | |
889 | notify = HostNormCmdNotFull; | |
890 | break; | |
1da177e4 LT |
891 | case HostNormRespQueue: |
892 | notify = HostNormRespNotFull; | |
893 | break; | |
1da177e4 LT |
894 | default: |
895 | BUG(); | |
896 | return; | |
897 | } | |
898 | aac_adapter_notify(dev, notify); | |
899 | } | |
8ce3eca4 | 900 | } |
1da177e4 LT |
901 | |
902 | /** | |
bfb35aa8 | 903 | * aac_fib_adapter_complete - complete adapter issued fib |
1da177e4 LT |
904 | * @fibptr: fib to complete |
905 | * @size: size of fib | |
906 | * | |
907 | * Will do all necessary work to complete a FIB that was sent from | |
908 | * the adapter. | |
909 | */ | |
910 | ||
bfb35aa8 | 911 | int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) |
1da177e4 | 912 | { |
a8166a52 | 913 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 914 | struct aac_dev * dev = fibptr->dev; |
1640a2c3 | 915 | struct aac_queue * q; |
1da177e4 | 916 | unsigned long nointr = 0; |
1640a2c3 MH |
917 | unsigned long qflags; |
918 | ||
85d22bbf | 919 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
a1751cda RAR |
920 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 || |
921 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { | |
e8b12f0f MR |
922 | kfree(hw_fib); |
923 | return 0; | |
924 | } | |
925 | ||
1640a2c3 | 926 | if (hw_fib->header.XferState == 0) { |
28713324 | 927 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 928 | kfree(hw_fib); |
8ce3eca4 | 929 | return 0; |
1640a2c3 | 930 | } |
1da177e4 LT |
931 | /* |
932 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 933 | */ |
85d22bbf MR |
934 | if (hw_fib->header.StructType != FIB_MAGIC && |
935 | hw_fib->header.StructType != FIB_MAGIC2 && | |
936 | hw_fib->header.StructType != FIB_MAGIC2_64) { | |
28713324 | 937 | if (dev->comm_interface == AAC_COMM_MESSAGE) |
e8b12f0f | 938 | kfree(hw_fib); |
8ce3eca4 | 939 | return -EINVAL; |
1da177e4 LT |
940 | } |
941 | /* | |
942 | * This block handles the case where the adapter had sent us a | |
943 | * command and we have finished processing the command. We | |
8ce3eca4 SM |
944 | * call completeFib when we are done processing the command |
945 | * and want to send a response back to the adapter. This will | |
1da177e4 LT |
946 | * send the completed cdb to the adapter. |
947 | */ | |
948 | if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) { | |
28713324 | 949 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
8e0c5ebd MH |
950 | kfree (hw_fib); |
951 | } else { | |
8ce3eca4 SM |
952 | u32 index; |
953 | hw_fib->header.XferState |= cpu_to_le32(HostProcessed); | |
8e0c5ebd MH |
954 | if (size) { |
955 | size += sizeof(struct aac_fibhdr); | |
8ce3eca4 | 956 | if (size > le16_to_cpu(hw_fib->header.SenderSize)) |
8e0c5ebd MH |
957 | return -EMSGSIZE; |
958 | hw_fib->header.Size = cpu_to_le16(size); | |
959 | } | |
960 | q = &dev->queues->queue[AdapNormRespQueue]; | |
961 | spin_lock_irqsave(q->lock, qflags); | |
962 | aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr); | |
963 | *(q->headers.producer) = cpu_to_le32(index + 1); | |
964 | spin_unlock_irqrestore(q->lock, qflags); | |
965 | if (!(nointr & (int)aac_config.irq_mod)) | |
966 | aac_adapter_notify(dev, AdapNormRespQueue); | |
1da177e4 | 967 | } |
8ce3eca4 SM |
968 | } else { |
969 | printk(KERN_WARNING "aac_fib_adapter_complete: " | |
970 | "Unknown xferstate detected.\n"); | |
971 | BUG(); | |
1da177e4 | 972 | } |
1da177e4 LT |
973 | return 0; |
974 | } | |
975 | ||
976 | /** | |
bfb35aa8 | 977 | * aac_fib_complete - fib completion handler |
1da177e4 LT |
978 | * @fib: FIB to complete |
979 | * | |
980 | * Will do all necessary work to complete a FIB. | |
981 | */ | |
8ce3eca4 | 982 | |
bfb35aa8 | 983 | int aac_fib_complete(struct fib *fibptr) |
1da177e4 | 984 | { |
a8166a52 | 985 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
1da177e4 | 986 | |
5a05cc7c RAR |
987 | if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) { |
988 | fib_dealloc(fibptr); | |
989 | return 0; | |
990 | } | |
991 | ||
1da177e4 | 992 | /* |
5a05cc7c RAR |
993 | * Check for a fib which has already been completed or with a |
994 | * status wait timeout | |
1da177e4 LT |
995 | */ |
996 | ||
5a05cc7c | 997 | if (hw_fib->header.XferState == 0 || fibptr->done == 2) |
8ce3eca4 | 998 | return 0; |
1da177e4 LT |
999 | /* |
1000 | * If we plan to do anything check the structure type first. | |
8ce3eca4 | 1001 | */ |
1da177e4 | 1002 | |
85d22bbf MR |
1003 | if (hw_fib->header.StructType != FIB_MAGIC && |
1004 | hw_fib->header.StructType != FIB_MAGIC2 && | |
1005 | hw_fib->header.StructType != FIB_MAGIC2_64) | |
8ce3eca4 | 1006 | return -EINVAL; |
1da177e4 | 1007 | /* |
8ce3eca4 | 1008 | * This block completes a cdb which orginated on the host and we |
1da177e4 LT |
1009 | * just need to deallocate the cdb or reinit it. At this point the |
1010 | * command is complete that we had sent to the adapter and this | |
1011 | * cdb could be reused. | |
1012 | */ | |
cacb6dc3 | 1013 | |
1da177e4 LT |
1014 | if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) && |
1015 | (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))) | |
1016 | { | |
1017 | fib_dealloc(fibptr); | |
1018 | } | |
1019 | else if(hw_fib->header.XferState & cpu_to_le32(SentFromHost)) | |
1020 | { | |
1021 | /* | |
1022 | * This handles the case when the host has aborted the I/O | |
1023 | * to the adapter because the adapter is not responding | |
1024 | */ | |
1025 | fib_dealloc(fibptr); | |
1026 | } else if(hw_fib->header.XferState & cpu_to_le32(HostOwned)) { | |
1027 | fib_dealloc(fibptr); | |
1028 | } else { | |
1029 | BUG(); | |
8ce3eca4 | 1030 | } |
1da177e4 LT |
1031 | return 0; |
1032 | } | |
1033 | ||
1034 | /** | |
1035 | * aac_printf - handle printf from firmware | |
1036 | * @dev: Adapter | |
1037 | * @val: Message info | |
1038 | * | |
1039 | * Print a message passed to us by the controller firmware on the | |
1040 | * Adaptec board | |
1041 | */ | |
1042 | ||
1043 | void aac_printf(struct aac_dev *dev, u32 val) | |
1044 | { | |
1da177e4 | 1045 | char *cp = dev->printfbuf; |
7c00ffa3 MH |
1046 | if (dev->printf_enabled) |
1047 | { | |
1048 | int length = val & 0xffff; | |
1049 | int level = (val >> 16) & 0xffff; | |
8ce3eca4 | 1050 | |
7c00ffa3 MH |
1051 | /* |
1052 | * The size of the printfbuf is set in port.c | |
1053 | * There is no variable or define for it | |
1054 | */ | |
1055 | if (length > 255) | |
1056 | length = 255; | |
1057 | if (cp[length] != 0) | |
1058 | cp[length] = 0; | |
1059 | if (level == LOG_AAC_HIGH_ERROR) | |
1241f359 | 1060 | printk(KERN_WARNING "%s:%s", dev->name, cp); |
7c00ffa3 | 1061 | else |
1241f359 | 1062 | printk(KERN_INFO "%s:%s", dev->name, cp); |
7c00ffa3 | 1063 | } |
8ce3eca4 | 1064 | memset(cp, 0, 256); |
1da177e4 LT |
1065 | } |
1066 | ||
9cb62fa2 RAR |
1067 | static inline int aac_aif_data(struct aac_aifcmd *aifcmd, uint32_t index) |
1068 | { | |
1069 | return le32_to_cpu(((__le32 *)aifcmd->data)[index]); | |
1070 | } | |
1071 | ||
1072 | ||
1073 | static void aac_handle_aif_bu(struct aac_dev *dev, struct aac_aifcmd *aifcmd) | |
1074 | { | |
1075 | switch (aac_aif_data(aifcmd, 1)) { | |
1076 | case AifBuCacheDataLoss: | |
1077 | if (aac_aif_data(aifcmd, 2)) | |
1078 | dev_info(&dev->pdev->dev, "Backup unit had cache data loss - [%d]\n", | |
1079 | aac_aif_data(aifcmd, 2)); | |
1080 | else | |
1081 | dev_info(&dev->pdev->dev, "Backup Unit had cache data loss\n"); | |
1082 | break; | |
1083 | case AifBuCacheDataRecover: | |
1084 | if (aac_aif_data(aifcmd, 2)) | |
1085 | dev_info(&dev->pdev->dev, "DDR cache data recovered successfully - [%d]\n", | |
1086 | aac_aif_data(aifcmd, 2)); | |
1087 | else | |
1088 | dev_info(&dev->pdev->dev, "DDR cache data recovered successfully\n"); | |
1089 | break; | |
1090 | } | |
1091 | } | |
131256cf MH |
1092 | |
1093 | /** | |
1094 | * aac_handle_aif - Handle a message from the firmware | |
1095 | * @dev: Which adapter this fib is from | |
1096 | * @fibptr: Pointer to fibptr from adapter | |
1097 | * | |
1098 | * This routine handles a driver notify fib from the adapter and | |
1099 | * dispatches it to the appropriate routine for handling. | |
1100 | */ | |
1101 | ||
495c0217 | 1102 | #define AIF_SNIFF_TIMEOUT (500*HZ) |
131256cf MH |
1103 | static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) |
1104 | { | |
a8166a52 | 1105 | struct hw_fib * hw_fib = fibptr->hw_fib_va; |
131256cf | 1106 | struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data; |
0995ad38 | 1107 | u32 channel, id, lun, container; |
131256cf MH |
1108 | struct scsi_device *device; |
1109 | enum { | |
1110 | NOTHING, | |
1111 | DELETE, | |
1112 | ADD, | |
1113 | CHANGE | |
0995ad38 | 1114 | } device_config_needed = NOTHING; |
131256cf MH |
1115 | |
1116 | /* Sniff for container changes */ | |
1117 | ||
c8f7b073 | 1118 | if (!dev || !dev->fsa_dev) |
131256cf | 1119 | return; |
0995ad38 | 1120 | container = channel = id = lun = (u32)-1; |
131256cf MH |
1121 | |
1122 | /* | |
1123 | * We have set this up to try and minimize the number of | |
1124 | * re-configures that take place. As a result of this when | |
1125 | * certain AIF's come in we will set a flag waiting for another | |
1126 | * type of AIF before setting the re-config flag. | |
1127 | */ | |
1128 | switch (le32_to_cpu(aifcmd->command)) { | |
1129 | case AifCmdDriverNotify: | |
f3307f72 | 1130 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
dab04b01 MR |
1131 | case AifRawDeviceRemove: |
1132 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); | |
1133 | if ((container >> 28)) { | |
1134 | container = (u32)-1; | |
1135 | break; | |
1136 | } | |
1137 | channel = (container >> 24) & 0xF; | |
1138 | if (channel >= dev->maximum_num_channels) { | |
1139 | container = (u32)-1; | |
1140 | break; | |
1141 | } | |
1142 | id = container & 0xFFFF; | |
1143 | if (id >= dev->maximum_num_physicals) { | |
1144 | container = (u32)-1; | |
1145 | break; | |
1146 | } | |
1147 | lun = (container >> 16) & 0xFF; | |
1148 | container = (u32)-1; | |
1149 | channel = aac_phys_to_logical(channel); | |
5a05cc7c | 1150 | device_config_needed = DELETE; |
dab04b01 | 1151 | break; |
5a05cc7c | 1152 | |
131256cf MH |
1153 | /* |
1154 | * Morph or Expand complete | |
1155 | */ | |
1156 | case AifDenMorphComplete: | |
1157 | case AifDenVolumeExtendComplete: | |
f3307f72 | 1158 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
1159 | if (container >= dev->maximum_num_containers) |
1160 | break; | |
1161 | ||
1162 | /* | |
f64a181d | 1163 | * Find the scsi_device associated with the SCSI |
131256cf MH |
1164 | * address. Make sure we have the right array, and if |
1165 | * so set the flag to initiate a new re-config once we | |
1166 | * see an AifEnConfigChange AIF come through. | |
1167 | */ | |
1168 | ||
1169 | if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) { | |
8ce3eca4 SM |
1170 | device = scsi_device_lookup(dev->scsi_host_ptr, |
1171 | CONTAINER_TO_CHANNEL(container), | |
1172 | CONTAINER_TO_ID(container), | |
131256cf MH |
1173 | CONTAINER_TO_LUN(container)); |
1174 | if (device) { | |
1175 | dev->fsa_dev[container].config_needed = CHANGE; | |
1176 | dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; | |
31876f32 | 1177 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
1178 | scsi_device_put(device); |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | /* | |
1184 | * If we are waiting on something and this happens to be | |
1185 | * that thing then set the re-configure flag. | |
1186 | */ | |
1187 | if (container != (u32)-1) { | |
1188 | if (container >= dev->maximum_num_containers) | |
1189 | break; | |
31876f32 | 1190 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1191 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1192 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1193 | dev->fsa_dev[container].config_waiting_on = 0; |
1194 | } else for (container = 0; | |
1195 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 1196 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1197 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1198 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1199 | dev->fsa_dev[container].config_waiting_on = 0; |
1200 | } | |
1201 | break; | |
1202 | ||
1203 | case AifCmdEventNotify: | |
f3307f72 | 1204 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) { |
95e852e1 SM |
1205 | case AifEnBatteryEvent: |
1206 | dev->cache_protected = | |
1207 | (((__le32 *)aifcmd->data)[1] == cpu_to_le32(3)); | |
1208 | break; | |
131256cf MH |
1209 | /* |
1210 | * Add an Array. | |
1211 | */ | |
1212 | case AifEnAddContainer: | |
f3307f72 | 1213 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
1214 | if (container >= dev->maximum_num_containers) |
1215 | break; | |
1216 | dev->fsa_dev[container].config_needed = ADD; | |
1217 | dev->fsa_dev[container].config_waiting_on = | |
1218 | AifEnConfigChange; | |
31876f32 | 1219 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
1220 | break; |
1221 | ||
1222 | /* | |
1223 | * Delete an Array. | |
1224 | */ | |
1225 | case AifEnDeleteContainer: | |
f3307f72 | 1226 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
1227 | if (container >= dev->maximum_num_containers) |
1228 | break; | |
1229 | dev->fsa_dev[container].config_needed = DELETE; | |
1230 | dev->fsa_dev[container].config_waiting_on = | |
1231 | AifEnConfigChange; | |
31876f32 | 1232 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
1233 | break; |
1234 | ||
1235 | /* | |
1236 | * Container change detected. If we currently are not | |
1237 | * waiting on something else, setup to wait on a Config Change. | |
1238 | */ | |
1239 | case AifEnContainerChange: | |
f3307f72 | 1240 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); |
131256cf MH |
1241 | if (container >= dev->maximum_num_containers) |
1242 | break; | |
31876f32 MH |
1243 | if (dev->fsa_dev[container].config_waiting_on && |
1244 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) | |
131256cf MH |
1245 | break; |
1246 | dev->fsa_dev[container].config_needed = CHANGE; | |
1247 | dev->fsa_dev[container].config_waiting_on = | |
1248 | AifEnConfigChange; | |
31876f32 | 1249 | dev->fsa_dev[container].config_waiting_stamp = jiffies; |
131256cf MH |
1250 | break; |
1251 | ||
1252 | case AifEnConfigChange: | |
1253 | break; | |
1254 | ||
cb1042f2 SM |
1255 | case AifEnAddJBOD: |
1256 | case AifEnDeleteJBOD: | |
1257 | container = le32_to_cpu(((__le32 *)aifcmd->data)[1]); | |
a4576b5d MS |
1258 | if ((container >> 28)) { |
1259 | container = (u32)-1; | |
cb1042f2 | 1260 | break; |
a4576b5d | 1261 | } |
cb1042f2 | 1262 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1263 | if (channel >= dev->maximum_num_channels) { |
1264 | container = (u32)-1; | |
cb1042f2 | 1265 | break; |
a4576b5d | 1266 | } |
cb1042f2 | 1267 | id = container & 0xFFFF; |
a4576b5d MS |
1268 | if (id >= dev->maximum_num_physicals) { |
1269 | container = (u32)-1; | |
cb1042f2 | 1270 | break; |
a4576b5d | 1271 | } |
cb1042f2 | 1272 | lun = (container >> 16) & 0xFF; |
a4576b5d | 1273 | container = (u32)-1; |
cb1042f2 SM |
1274 | channel = aac_phys_to_logical(channel); |
1275 | device_config_needed = | |
1276 | (((__le32 *)aifcmd->data)[0] == | |
1277 | cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE; | |
5ca05594 RM |
1278 | if (device_config_needed == ADD) { |
1279 | device = scsi_device_lookup(dev->scsi_host_ptr, | |
1280 | channel, | |
1281 | id, | |
1282 | lun); | |
1283 | if (device) { | |
1284 | scsi_remove_device(device); | |
1285 | scsi_device_put(device); | |
1286 | } | |
1287 | } | |
cb1042f2 SM |
1288 | break; |
1289 | ||
0995ad38 | 1290 | case AifEnEnclosureManagement: |
cb1042f2 SM |
1291 | /* |
1292 | * If in JBOD mode, automatic exposure of new | |
1293 | * physical target to be suppressed until configured. | |
1294 | */ | |
1295 | if (dev->jbod) | |
1296 | break; | |
0995ad38 SM |
1297 | switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) { |
1298 | case EM_DRIVE_INSERTION: | |
1299 | case EM_DRIVE_REMOVAL: | |
46154a02 MR |
1300 | case EM_SES_DRIVE_INSERTION: |
1301 | case EM_SES_DRIVE_REMOVAL: | |
0995ad38 SM |
1302 | container = le32_to_cpu( |
1303 | ((__le32 *)aifcmd->data)[2]); | |
a4576b5d MS |
1304 | if ((container >> 28)) { |
1305 | container = (u32)-1; | |
0995ad38 | 1306 | break; |
a4576b5d | 1307 | } |
0995ad38 | 1308 | channel = (container >> 24) & 0xF; |
a4576b5d MS |
1309 | if (channel >= dev->maximum_num_channels) { |
1310 | container = (u32)-1; | |
0995ad38 | 1311 | break; |
a4576b5d | 1312 | } |
0995ad38 SM |
1313 | id = container & 0xFFFF; |
1314 | lun = (container >> 16) & 0xFF; | |
a4576b5d | 1315 | container = (u32)-1; |
0995ad38 SM |
1316 | if (id >= dev->maximum_num_physicals) { |
1317 | /* legacy dev_t ? */ | |
1318 | if ((0x2000 <= id) || lun || channel || | |
1319 | ((channel = (id >> 7) & 0x3F) >= | |
1320 | dev->maximum_num_channels)) | |
1321 | break; | |
1322 | lun = (id >> 4) & 7; | |
1323 | id &= 0xF; | |
1324 | } | |
1325 | channel = aac_phys_to_logical(channel); | |
1326 | device_config_needed = | |
46154a02 MR |
1327 | ((((__le32 *)aifcmd->data)[3] |
1328 | == cpu_to_le32(EM_DRIVE_INSERTION)) || | |
1329 | (((__le32 *)aifcmd->data)[3] | |
1330 | == cpu_to_le32(EM_SES_DRIVE_INSERTION))) ? | |
0995ad38 SM |
1331 | ADD : DELETE; |
1332 | break; | |
1333 | } | |
9cb62fa2 RAR |
1334 | case AifBuManagerEvent: |
1335 | aac_handle_aif_bu(dev, aifcmd); | |
0995ad38 | 1336 | break; |
131256cf MH |
1337 | } |
1338 | ||
1339 | /* | |
1340 | * If we are waiting on something and this happens to be | |
1341 | * that thing then set the re-configure flag. | |
1342 | */ | |
1343 | if (container != (u32)-1) { | |
1344 | if (container >= dev->maximum_num_containers) | |
1345 | break; | |
31876f32 | 1346 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1347 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1348 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1349 | dev->fsa_dev[container].config_waiting_on = 0; |
1350 | } else for (container = 0; | |
1351 | container < dev->maximum_num_containers; ++container) { | |
31876f32 | 1352 | if ((dev->fsa_dev[container].config_waiting_on == |
f3307f72 | 1353 | le32_to_cpu(*(__le32 *)aifcmd->data)) && |
31876f32 | 1354 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) |
131256cf MH |
1355 | dev->fsa_dev[container].config_waiting_on = 0; |
1356 | } | |
1357 | break; | |
1358 | ||
1359 | case AifCmdJobProgress: | |
1360 | /* | |
1361 | * These are job progress AIF's. When a Clear is being | |
1362 | * done on a container it is initially created then hidden from | |
1363 | * the OS. When the clear completes we don't get a config | |
1364 | * change so we monitor the job status complete on a clear then | |
1365 | * wait for a container change. | |
1366 | */ | |
1367 | ||
f3307f72 CH |
1368 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1369 | (((__le32 *)aifcmd->data)[6] == ((__le32 *)aifcmd->data)[5] || | |
1370 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess))) { | |
131256cf MH |
1371 | for (container = 0; |
1372 | container < dev->maximum_num_containers; | |
1373 | ++container) { | |
1374 | /* | |
1375 | * Stomp on all config sequencing for all | |
1376 | * containers? | |
1377 | */ | |
1378 | dev->fsa_dev[container].config_waiting_on = | |
1379 | AifEnContainerChange; | |
1380 | dev->fsa_dev[container].config_needed = ADD; | |
31876f32 MH |
1381 | dev->fsa_dev[container].config_waiting_stamp = |
1382 | jiffies; | |
131256cf MH |
1383 | } |
1384 | } | |
f3307f72 CH |
1385 | if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) && |
1386 | ((__le32 *)aifcmd->data)[6] == 0 && | |
1387 | ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning)) { | |
131256cf MH |
1388 | for (container = 0; |
1389 | container < dev->maximum_num_containers; | |
1390 | ++container) { | |
1391 | /* | |
1392 | * Stomp on all config sequencing for all | |
1393 | * containers? | |
1394 | */ | |
1395 | dev->fsa_dev[container].config_waiting_on = | |
1396 | AifEnContainerChange; | |
1397 | dev->fsa_dev[container].config_needed = DELETE; | |
31876f32 MH |
1398 | dev->fsa_dev[container].config_waiting_stamp = |
1399 | jiffies; | |
131256cf MH |
1400 | } |
1401 | } | |
1402 | break; | |
1403 | } | |
1404 | ||
a4576b5d MS |
1405 | container = 0; |
1406 | retry_next: | |
0995ad38 | 1407 | if (device_config_needed == NOTHING) |
a4576b5d | 1408 | for (; container < dev->maximum_num_containers; ++container) { |
31876f32 MH |
1409 | if ((dev->fsa_dev[container].config_waiting_on == 0) && |
1410 | (dev->fsa_dev[container].config_needed != NOTHING) && | |
1411 | time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) { | |
131256cf MH |
1412 | device_config_needed = |
1413 | dev->fsa_dev[container].config_needed; | |
1414 | dev->fsa_dev[container].config_needed = NOTHING; | |
0995ad38 SM |
1415 | channel = CONTAINER_TO_CHANNEL(container); |
1416 | id = CONTAINER_TO_ID(container); | |
1417 | lun = CONTAINER_TO_LUN(container); | |
131256cf MH |
1418 | break; |
1419 | } | |
1420 | } | |
1421 | if (device_config_needed == NOTHING) | |
1422 | return; | |
1423 | ||
1424 | /* | |
1425 | * If we decided that a re-configuration needs to be done, | |
1426 | * schedule it here on the way out the door, please close the door | |
1427 | * behind you. | |
1428 | */ | |
1429 | ||
131256cf | 1430 | /* |
f64a181d | 1431 | * Find the scsi_device associated with the SCSI address, |
131256cf MH |
1432 | * and mark it as changed, invalidating the cache. This deals |
1433 | * with changes to existing device IDs. | |
1434 | */ | |
1435 | ||
1436 | if (!dev || !dev->scsi_host_ptr) | |
1437 | return; | |
1438 | /* | |
bfb35aa8 | 1439 | * force reload of disk info via aac_probe_container |
131256cf | 1440 | */ |
0995ad38 SM |
1441 | if ((channel == CONTAINER_CHANNEL) && |
1442 | (device_config_needed != NOTHING)) { | |
1443 | if (dev->fsa_dev[container].valid == 1) | |
1444 | dev->fsa_dev[container].valid = 2; | |
bfb35aa8 | 1445 | aac_probe_container(dev, container); |
0995ad38 SM |
1446 | } |
1447 | device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun); | |
131256cf MH |
1448 | if (device) { |
1449 | switch (device_config_needed) { | |
1450 | case DELETE: | |
9cccde93 RM |
1451 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1452 | scsi_remove_device(device); | |
1453 | #else | |
0995ad38 SM |
1454 | if (scsi_device_online(device)) { |
1455 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1456 | sdev_printk(KERN_INFO, device, | |
1457 | "Device offlined - %s\n", | |
1458 | (channel == CONTAINER_CHANNEL) ? | |
1459 | "array deleted" : | |
1460 | "enclosure services event"); | |
1461 | } | |
9cccde93 | 1462 | #endif |
0995ad38 SM |
1463 | break; |
1464 | case ADD: | |
1465 | if (!scsi_device_online(device)) { | |
1466 | sdev_printk(KERN_INFO, device, | |
1467 | "Device online - %s\n", | |
1468 | (channel == CONTAINER_CHANNEL) ? | |
1469 | "array created" : | |
1470 | "enclosure services event"); | |
1471 | scsi_device_set_state(device, SDEV_RUNNING); | |
1472 | } | |
1473 | /* FALLTHRU */ | |
131256cf | 1474 | case CHANGE: |
0995ad38 SM |
1475 | if ((channel == CONTAINER_CHANNEL) |
1476 | && (!dev->fsa_dev[container].valid)) { | |
9cccde93 RM |
1477 | #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE)) |
1478 | scsi_remove_device(device); | |
1479 | #else | |
0995ad38 SM |
1480 | if (!scsi_device_online(device)) |
1481 | break; | |
1482 | scsi_device_set_state(device, SDEV_OFFLINE); | |
1483 | sdev_printk(KERN_INFO, device, | |
1484 | "Device offlined - %s\n", | |
1485 | "array failed"); | |
9cccde93 | 1486 | #endif |
0995ad38 SM |
1487 | break; |
1488 | } | |
131256cf MH |
1489 | scsi_rescan_device(&device->sdev_gendev); |
1490 | ||
1491 | default: | |
1492 | break; | |
1493 | } | |
1494 | scsi_device_put(device); | |
0995ad38 | 1495 | device_config_needed = NOTHING; |
131256cf | 1496 | } |
0995ad38 SM |
1497 | if (device_config_needed == ADD) |
1498 | scsi_add_device(dev->scsi_host_ptr, channel, id, lun); | |
a4576b5d MS |
1499 | if (channel == CONTAINER_CHANNEL) { |
1500 | container++; | |
1501 | device_config_needed = NOTHING; | |
1502 | goto retry_next; | |
1503 | } | |
131256cf MH |
1504 | } |
1505 | ||
3a4c3699 | 1506 | static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) |
8c867b25 MH |
1507 | { |
1508 | int index, quirks; | |
8b1462e0 | 1509 | int retval; |
8c867b25 MH |
1510 | struct Scsi_Host *host; |
1511 | struct scsi_device *dev; | |
1512 | struct scsi_cmnd *command; | |
1513 | struct scsi_cmnd *command_list; | |
29c97684 | 1514 | int jafo = 0; |
3a4c3699 | 1515 | int bled; |
c28b121f | 1516 | u64 dmamask; |
8c867b25 MH |
1517 | |
1518 | /* | |
1519 | * Assumptions: | |
29c97684 SM |
1520 | * - host is locked, unless called by the aacraid thread. |
1521 | * (a matter of convenience, due to legacy issues surrounding | |
1522 | * eh_host_adapter_reset). | |
8c867b25 MH |
1523 | * - in_reset is asserted, so no new i/o is getting to the |
1524 | * card. | |
29c97684 SM |
1525 | * - The card is dead, or will be very shortly ;-/ so no new |
1526 | * commands are completing in the interrupt service. | |
8c867b25 MH |
1527 | */ |
1528 | host = aac->scsi_host_ptr; | |
1529 | scsi_block_requests(host); | |
1530 | aac_adapter_disable_int(aac); | |
29c97684 SM |
1531 | if (aac->thread->pid != current->pid) { |
1532 | spin_unlock_irq(host->host_lock); | |
1533 | kthread_stop(aac->thread); | |
1534 | jafo = 1; | |
1535 | } | |
8c867b25 MH |
1536 | |
1537 | /* | |
1538 | * If a positive health, means in a known DEAD PANIC | |
1539 | * state and the adapter could be reset to `try again'. | |
1540 | */ | |
3a4c3699 RAR |
1541 | bled = forced ? 0 : aac_adapter_check_health(aac); |
1542 | retval = aac_adapter_restart(aac, bled, reset_type); | |
8c867b25 MH |
1543 | |
1544 | if (retval) | |
1545 | goto out; | |
8c867b25 | 1546 | |
d18b448f MH |
1547 | /* |
1548 | * Loop through the fibs, close the synchronous FIBS | |
1549 | */ | |
33bb3b29 | 1550 | for (retval = 1, index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) { |
d18b448f | 1551 | struct fib *fib = &aac->fibs[index]; |
a8166a52 MH |
1552 | if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) && |
1553 | (fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) { | |
d18b448f MH |
1554 | unsigned long flagv; |
1555 | spin_lock_irqsave(&fib->event_lock, flagv); | |
1556 | up(&fib->event_wait); | |
1557 | spin_unlock_irqrestore(&fib->event_lock, flagv); | |
1558 | schedule(); | |
33bb3b29 | 1559 | retval = 0; |
d18b448f MH |
1560 | } |
1561 | } | |
33bb3b29 MH |
1562 | /* Give some extra time for ioctls to complete. */ |
1563 | if (retval == 0) | |
1564 | ssleep(2); | |
8c867b25 MH |
1565 | index = aac->cardtype; |
1566 | ||
1567 | /* | |
1568 | * Re-initialize the adapter, first free resources, then carefully | |
1569 | * apply the initialization sequence to come back again. Only risk | |
1570 | * is a change in Firmware dropping cache, it is assumed the caller | |
1571 | * will ensure that i/o is queisced and the card is flushed in that | |
1572 | * case. | |
1573 | */ | |
1574 | aac_fib_map_free(aac); | |
d74d9d03 MR |
1575 | dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr, |
1576 | aac->comm_phys); | |
8c867b25 MH |
1577 | aac->comm_addr = NULL; |
1578 | aac->comm_phys = 0; | |
1579 | kfree(aac->queues); | |
1580 | aac->queues = NULL; | |
8b1462e0 | 1581 | aac_free_irq(aac); |
8c867b25 MH |
1582 | kfree(aac->fsa_dev); |
1583 | aac->fsa_dev = NULL; | |
c28b121f RAR |
1584 | |
1585 | dmamask = DMA_BIT_MASK(32); | |
94cf6ba1 | 1586 | quirks = aac_get_driver_ident(index)->quirks; |
c28b121f RAR |
1587 | if (quirks & AAC_QUIRK_31BIT) |
1588 | retval = pci_set_dma_mask(aac->pdev, dmamask); | |
1589 | else if (!(quirks & AAC_QUIRK_SRC)) | |
1590 | retval = pci_set_dma_mask(aac->pdev, dmamask); | |
1591 | else | |
1592 | retval = pci_set_consistent_dma_mask(aac->pdev, dmamask); | |
1593 | ||
1594 | if (quirks & AAC_QUIRK_31BIT && !retval) { | |
1595 | dmamask = DMA_BIT_MASK(31); | |
1596 | retval = pci_set_consistent_dma_mask(aac->pdev, dmamask); | |
8c867b25 | 1597 | } |
c28b121f RAR |
1598 | |
1599 | if (retval) | |
1600 | goto out; | |
1601 | ||
8c867b25 MH |
1602 | if ((retval = (*(aac_get_driver_ident(index)->init))(aac))) |
1603 | goto out; | |
c28b121f | 1604 | |
29c97684 | 1605 | if (jafo) { |
f170168b KC |
1606 | aac->thread = kthread_run(aac_command_thread, aac, "%s", |
1607 | aac->name); | |
29c97684 SM |
1608 | if (IS_ERR(aac->thread)) { |
1609 | retval = PTR_ERR(aac->thread); | |
1610 | goto out; | |
1611 | } | |
8c867b25 MH |
1612 | } |
1613 | (void)aac_get_adapter_info(aac); | |
8c867b25 | 1614 | if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) { |
8ce3eca4 SM |
1615 | host->sg_tablesize = 34; |
1616 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1617 | } | |
1618 | if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) { | |
1619 | host->sg_tablesize = 17; | |
1620 | host->max_sectors = (host->sg_tablesize * 8) + 112; | |
1621 | } | |
8c867b25 MH |
1622 | aac_get_config_status(aac, 1); |
1623 | aac_get_containers(aac); | |
1624 | /* | |
1625 | * This is where the assumption that the Adapter is quiesced | |
1626 | * is important. | |
1627 | */ | |
1628 | command_list = NULL; | |
1629 | __shost_for_each_device(dev, host) { | |
1630 | unsigned long flags; | |
1631 | spin_lock_irqsave(&dev->list_lock, flags); | |
1632 | list_for_each_entry(command, &dev->cmd_list, list) | |
1633 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1634 | command->SCp.buffer = (struct scatterlist *)command_list; | |
1635 | command_list = command; | |
1636 | } | |
1637 | spin_unlock_irqrestore(&dev->list_lock, flags); | |
1638 | } | |
1639 | while ((command = command_list)) { | |
1640 | command_list = (struct scsi_cmnd *)command->SCp.buffer; | |
1641 | command->SCp.buffer = NULL; | |
1642 | command->result = DID_OK << 16 | |
1643 | | COMMAND_COMPLETE << 8 | |
1644 | | SAM_STAT_TASK_SET_FULL; | |
1645 | command->SCp.phase = AAC_OWNER_ERROR_HANDLER; | |
1646 | command->scsi_done(command); | |
1647 | } | |
82b3ca8f RAR |
1648 | /* |
1649 | * Any Device that was already marked offline needs to be cleaned up | |
1650 | */ | |
1651 | __shost_for_each_device(dev, host) { | |
1652 | if (!scsi_device_online(dev)) { | |
1653 | sdev_printk(KERN_INFO, dev, "Removing offline device\n"); | |
1654 | scsi_remove_device(dev); | |
1655 | scsi_device_put(dev); | |
1656 | } | |
1657 | } | |
8c867b25 MH |
1658 | retval = 0; |
1659 | ||
1660 | out: | |
1661 | aac->in_reset = 0; | |
1662 | scsi_unblock_requests(host); | |
82b3ca8f RAR |
1663 | /* |
1664 | * Issue bus rescan to catch any configuration that might have | |
1665 | * occurred | |
1666 | */ | |
1667 | if (!retval) { | |
1668 | dev_info(&aac->pdev->dev, "Issuing bus rescan\n"); | |
1669 | scsi_scan_host(host); | |
1670 | } | |
29c97684 SM |
1671 | if (jafo) { |
1672 | spin_lock_irq(host->host_lock); | |
1673 | } | |
1674 | return retval; | |
1675 | } | |
1676 | ||
3a4c3699 | 1677 | int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) |
29c97684 SM |
1678 | { |
1679 | unsigned long flagv = 0; | |
1680 | int retval; | |
1681 | struct Scsi_Host * host; | |
3a4c3699 | 1682 | int bled; |
29c97684 SM |
1683 | |
1684 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1685 | return -EBUSY; | |
1686 | ||
1687 | if (aac->in_reset) { | |
1688 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1689 | return -EBUSY; | |
1690 | } | |
1691 | aac->in_reset = 1; | |
1692 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1693 | ||
1694 | /* | |
1695 | * Wait for all commands to complete to this specific | |
1696 | * target (block maximum 60 seconds). Although not necessary, | |
1697 | * it does make us a good storage citizen. | |
1698 | */ | |
1699 | host = aac->scsi_host_ptr; | |
1700 | scsi_block_requests(host); | |
1701 | if (forced < 2) for (retval = 60; retval; --retval) { | |
1702 | struct scsi_device * dev; | |
1703 | struct scsi_cmnd * command; | |
1704 | int active = 0; | |
1705 | ||
1706 | __shost_for_each_device(dev, host) { | |
1707 | spin_lock_irqsave(&dev->list_lock, flagv); | |
1708 | list_for_each_entry(command, &dev->cmd_list, list) { | |
1709 | if (command->SCp.phase == AAC_OWNER_FIRMWARE) { | |
1710 | active++; | |
1711 | break; | |
1712 | } | |
1713 | } | |
1714 | spin_unlock_irqrestore(&dev->list_lock, flagv); | |
1715 | if (active) | |
1716 | break; | |
1717 | ||
1718 | } | |
1719 | /* | |
1720 | * We can exit If all the commands are complete | |
1721 | */ | |
1722 | if (active == 0) | |
1723 | break; | |
1724 | ssleep(1); | |
1725 | } | |
1726 | ||
1727 | /* Quiesce build, flush cache, write through mode */ | |
f858317d SM |
1728 | if (forced < 2) |
1729 | aac_send_shutdown(aac); | |
29c97684 | 1730 | spin_lock_irqsave(host->host_lock, flagv); |
3a4c3699 RAR |
1731 | bled = forced ? forced : |
1732 | (aac_check_reset != 0 && aac_check_reset != 1); | |
1733 | retval = _aac_reset_adapter(aac, bled, reset_type); | |
29c97684 SM |
1734 | spin_unlock_irqrestore(host->host_lock, flagv); |
1735 | ||
f858317d | 1736 | if ((forced < 2) && (retval == -ENODEV)) { |
29c97684 SM |
1737 | /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */ |
1738 | struct fib * fibctx = aac_fib_alloc(aac); | |
1739 | if (fibctx) { | |
1740 | struct aac_pause *cmd; | |
1741 | int status; | |
1742 | ||
1743 | aac_fib_init(fibctx); | |
1744 | ||
1745 | cmd = (struct aac_pause *) fib_data(fibctx); | |
1746 | ||
1747 | cmd->command = cpu_to_le32(VM_ContainerConfig); | |
1748 | cmd->type = cpu_to_le32(CT_PAUSE_IO); | |
1749 | cmd->timeout = cpu_to_le32(1); | |
1750 | cmd->min = cpu_to_le32(1); | |
1751 | cmd->noRescan = cpu_to_le32(1); | |
1752 | cmd->count = cpu_to_le32(0); | |
1753 | ||
1754 | status = aac_fib_send(ContainerCommand, | |
1755 | fibctx, | |
1756 | sizeof(struct aac_pause), | |
1757 | FsaNormal, | |
1758 | -2 /* Timeout silently */, 1, | |
1759 | NULL, NULL); | |
1760 | ||
1761 | if (status >= 0) | |
1762 | aac_fib_complete(fibctx); | |
cacb6dc3 PNRCEH |
1763 | /* FIB should be freed only after getting |
1764 | * the response from the F/W */ | |
1765 | if (status != -ERESTARTSYS) | |
1766 | aac_fib_free(fibctx); | |
29c97684 SM |
1767 | } |
1768 | } | |
1769 | ||
8c867b25 MH |
1770 | return retval; |
1771 | } | |
1772 | ||
1773 | int aac_check_health(struct aac_dev * aac) | |
1774 | { | |
1775 | int BlinkLED; | |
1776 | unsigned long time_now, flagv = 0; | |
1777 | struct list_head * entry; | |
1778 | struct Scsi_Host * host; | |
3a4c3699 | 1779 | int bled; |
8c867b25 MH |
1780 | |
1781 | /* Extending the scope of fib_lock slightly to protect aac->in_reset */ | |
1782 | if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0) | |
1783 | return 0; | |
1784 | ||
1785 | if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) { | |
1786 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1787 | return 0; /* OK */ | |
1788 | } | |
1789 | ||
1790 | aac->in_reset = 1; | |
1791 | ||
1792 | /* Fake up an AIF: | |
1793 | * aac_aifcmd.command = AifCmdEventNotify = 1 | |
1794 | * aac_aifcmd.seqnum = 0xFFFFFFFF | |
1795 | * aac_aifcmd.data[0] = AifEnExpEvent = 23 | |
1796 | * aac_aifcmd.data[1] = AifExeFirmwarePanic = 3 | |
1797 | * aac.aifcmd.data[2] = AifHighPriority = 3 | |
1798 | * aac.aifcmd.data[3] = BlinkLED | |
1799 | */ | |
1800 | ||
1801 | time_now = jiffies/HZ; | |
1802 | entry = aac->fib_list.next; | |
1803 | ||
1804 | /* | |
1805 | * For each Context that is on the | |
1806 | * fibctxList, make a copy of the | |
1807 | * fib, and then set the event to wake up the | |
1808 | * thread that is waiting for it. | |
1809 | */ | |
1810 | while (entry != &aac->fib_list) { | |
1811 | /* | |
1812 | * Extract the fibctx | |
1813 | */ | |
1814 | struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next); | |
1815 | struct hw_fib * hw_fib; | |
1816 | struct fib * fib; | |
1817 | /* | |
1818 | * Check if the queue is getting | |
1819 | * backlogged | |
1820 | */ | |
1821 | if (fibctx->count > 20) { | |
1822 | /* | |
1823 | * It's *not* jiffies folks, | |
1824 | * but jiffies / HZ, so do not | |
1825 | * panic ... | |
1826 | */ | |
1827 | u32 time_last = fibctx->jiffies; | |
1828 | /* | |
1829 | * Has it been > 2 minutes | |
1830 | * since the last read off | |
1831 | * the queue? | |
1832 | */ | |
1833 | if ((time_now - time_last) > aif_timeout) { | |
1834 | entry = entry->next; | |
1835 | aac_close_fib_context(aac, fibctx); | |
1836 | continue; | |
1837 | } | |
1838 | } | |
1839 | /* | |
1840 | * Warning: no sleep allowed while | |
1841 | * holding spinlock | |
1842 | */ | |
4dbc22d7 SM |
1843 | hw_fib = kzalloc(sizeof(struct hw_fib), GFP_ATOMIC); |
1844 | fib = kzalloc(sizeof(struct fib), GFP_ATOMIC); | |
8c867b25 MH |
1845 | if (fib && hw_fib) { |
1846 | struct aac_aifcmd * aif; | |
1847 | ||
a8166a52 | 1848 | fib->hw_fib_va = hw_fib; |
8c867b25 MH |
1849 | fib->dev = aac; |
1850 | aac_fib_init(fib); | |
1851 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
1852 | fib->size = sizeof (struct fib); | |
1853 | fib->data = hw_fib->data; | |
1854 | aif = (struct aac_aifcmd *)hw_fib->data; | |
1855 | aif->command = cpu_to_le32(AifCmdEventNotify); | |
a3940da5 SM |
1856 | aif->seqnum = cpu_to_le32(0xFFFFFFFF); |
1857 | ((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent); | |
1858 | ((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic); | |
1859 | ((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority); | |
1860 | ((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED); | |
8c867b25 MH |
1861 | |
1862 | /* | |
1863 | * Put the FIB onto the | |
1864 | * fibctx's fibs | |
1865 | */ | |
1866 | list_add_tail(&fib->fiblink, &fibctx->fib_list); | |
1867 | fibctx->count++; | |
1868 | /* | |
1869 | * Set the event to wake up the | |
1870 | * thread that will waiting. | |
1871 | */ | |
1872 | up(&fibctx->wait_sem); | |
1873 | } else { | |
1874 | printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); | |
1875 | kfree(fib); | |
1876 | kfree(hw_fib); | |
1877 | } | |
1878 | entry = entry->next; | |
1879 | } | |
1880 | ||
1881 | spin_unlock_irqrestore(&aac->fib_lock, flagv); | |
1882 | ||
1883 | if (BlinkLED < 0) { | |
1db16265 GP |
1884 | printk(KERN_ERR "%s: Host adapter is dead (or got a PCI error) %d\n", |
1885 | aac->name, BlinkLED); | |
8c867b25 MH |
1886 | goto out; |
1887 | } | |
1888 | ||
1889 | printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED); | |
1890 | ||
2f7ecc55 | 1891 | if (!aac_check_reset || ((aac_check_reset == 1) && |
bca379d8 | 1892 | (aac->supplement_adapter_info.supported_options2 & |
a3940da5 | 1893 | AAC_OPTION_IGNORE_RESET))) |
29c97684 | 1894 | goto out; |
8c867b25 | 1895 | host = aac->scsi_host_ptr; |
29c97684 SM |
1896 | if (aac->thread->pid != current->pid) |
1897 | spin_lock_irqsave(host->host_lock, flagv); | |
3a4c3699 RAR |
1898 | bled = aac_check_reset != 1 ? 1 : 0; |
1899 | _aac_reset_adapter(aac, bled, IOP_HWSOFT_RESET); | |
29c97684 SM |
1900 | if (aac->thread->pid != current->pid) |
1901 | spin_unlock_irqrestore(host->host_lock, flagv); | |
8c867b25 MH |
1902 | return BlinkLED; |
1903 | ||
1904 | out: | |
1905 | aac->in_reset = 0; | |
1906 | return BlinkLED; | |
1907 | } | |
1908 | ||
be6aeeed RAR |
1909 | |
1910 | static void aac_resolve_luns(struct aac_dev *dev) | |
1911 | { | |
1912 | int bus, target, channel; | |
1913 | struct scsi_device *sdev; | |
1914 | u8 devtype; | |
1915 | u8 new_devtype; | |
1916 | ||
1917 | for (bus = 0; bus < AAC_MAX_BUSES; bus++) { | |
1918 | for (target = 0; target < AAC_MAX_TARGETS; target++) { | |
1919 | ||
be6aeeed RAR |
1920 | if (bus == CONTAINER_CHANNEL) |
1921 | channel = CONTAINER_CHANNEL; | |
1922 | else | |
1923 | channel = aac_phys_to_logical(bus); | |
1924 | ||
1925 | devtype = dev->hba_map[bus][target].devtype; | |
1926 | new_devtype = dev->hba_map[bus][target].new_devtype; | |
1927 | ||
1928 | sdev = scsi_device_lookup(dev->scsi_host_ptr, channel, | |
1929 | target, 0); | |
1930 | ||
4918fa46 | 1931 | if (!sdev && new_devtype) |
be6aeeed RAR |
1932 | scsi_add_device(dev->scsi_host_ptr, channel, |
1933 | target, 0); | |
1934 | else if (sdev && new_devtype != devtype) | |
1935 | scsi_remove_device(sdev); | |
1936 | else if (sdev && new_devtype == devtype) | |
1937 | scsi_rescan_device(&sdev->sdev_gendev); | |
1938 | ||
1939 | if (sdev) | |
1940 | scsi_device_put(sdev); | |
1941 | ||
1942 | dev->hba_map[bus][target].devtype = new_devtype; | |
1943 | } | |
1944 | } | |
1945 | } | |
1946 | ||
1947 | /** | |
1948 | * aac_handle_sa_aif Handle a message from the firmware | |
1949 | * @dev: Which adapter this fib is from | |
1950 | * @fibptr: Pointer to fibptr from adapter | |
1951 | * | |
1952 | * This routine handles a driver notify fib from the adapter and | |
1953 | * dispatches it to the appropriate routine for handling. | |
1954 | */ | |
1955 | static void aac_handle_sa_aif(struct aac_dev *dev, struct fib *fibptr) | |
1956 | { | |
1957 | int i, bus, target, container, rcode = 0; | |
1958 | u32 events = 0; | |
1959 | struct fib *fib; | |
1960 | struct scsi_device *sdev; | |
1961 | ||
1962 | if (fibptr->hbacmd_size & SA_AIF_HOTPLUG) | |
1963 | events = SA_AIF_HOTPLUG; | |
1964 | else if (fibptr->hbacmd_size & SA_AIF_HARDWARE) | |
1965 | events = SA_AIF_HARDWARE; | |
1966 | else if (fibptr->hbacmd_size & SA_AIF_PDEV_CHANGE) | |
1967 | events = SA_AIF_PDEV_CHANGE; | |
1968 | else if (fibptr->hbacmd_size & SA_AIF_LDEV_CHANGE) | |
1969 | events = SA_AIF_LDEV_CHANGE; | |
1970 | else if (fibptr->hbacmd_size & SA_AIF_BPSTAT_CHANGE) | |
1971 | events = SA_AIF_BPSTAT_CHANGE; | |
1972 | else if (fibptr->hbacmd_size & SA_AIF_BPCFG_CHANGE) | |
1973 | events = SA_AIF_BPCFG_CHANGE; | |
1974 | ||
1975 | switch (events) { | |
1976 | case SA_AIF_HOTPLUG: | |
1977 | case SA_AIF_HARDWARE: | |
1978 | case SA_AIF_PDEV_CHANGE: | |
1979 | case SA_AIF_LDEV_CHANGE: | |
1980 | case SA_AIF_BPCFG_CHANGE: | |
1981 | ||
1982 | fib = aac_fib_alloc(dev); | |
1983 | if (!fib) { | |
1984 | pr_err("aac_handle_sa_aif: out of memory\n"); | |
1985 | return; | |
1986 | } | |
1987 | for (bus = 0; bus < AAC_MAX_BUSES; bus++) | |
1988 | for (target = 0; target < AAC_MAX_TARGETS; target++) | |
1989 | dev->hba_map[bus][target].new_devtype = 0; | |
1990 | ||
1991 | rcode = aac_report_phys_luns(dev, fib, AAC_RESCAN); | |
1992 | ||
1993 | if (rcode != -ERESTARTSYS) | |
1994 | aac_fib_free(fib); | |
1995 | ||
1996 | aac_resolve_luns(dev); | |
1997 | ||
1998 | if (events == SA_AIF_LDEV_CHANGE || | |
1999 | events == SA_AIF_BPCFG_CHANGE) { | |
2000 | aac_get_containers(dev); | |
2001 | for (container = 0; container < | |
2002 | dev->maximum_num_containers; ++container) { | |
2003 | sdev = scsi_device_lookup(dev->scsi_host_ptr, | |
2004 | CONTAINER_CHANNEL, | |
2005 | container, 0); | |
2006 | if (dev->fsa_dev[container].valid && !sdev) { | |
2007 | scsi_add_device(dev->scsi_host_ptr, | |
2008 | CONTAINER_CHANNEL, | |
2009 | container, 0); | |
2010 | } else if (!dev->fsa_dev[container].valid && | |
2011 | sdev) { | |
2012 | scsi_remove_device(sdev); | |
2013 | scsi_device_put(sdev); | |
2014 | } else if (sdev) { | |
2015 | scsi_rescan_device(&sdev->sdev_gendev); | |
2016 | scsi_device_put(sdev); | |
2017 | } | |
2018 | } | |
2019 | } | |
2020 | break; | |
2021 | ||
2022 | case SA_AIF_BPSTAT_CHANGE: | |
2023 | /* currently do nothing */ | |
2024 | break; | |
2025 | } | |
2026 | ||
2027 | for (i = 1; i <= 10; ++i) { | |
2028 | events = src_readl(dev, MUnit.IDR); | |
2029 | if (events & (1<<23)) { | |
2030 | pr_warn(" AIF not cleared by firmware - %d/%d)\n", | |
2031 | i, 10); | |
2032 | ssleep(1); | |
2033 | } | |
2034 | } | |
2035 | } | |
2036 | ||
7c0b5eda RAR |
2037 | static int get_fib_count(struct aac_dev *dev) |
2038 | { | |
2039 | unsigned int num = 0; | |
2040 | struct list_head *entry; | |
2041 | unsigned long flagv; | |
2042 | ||
2043 | /* | |
2044 | * Warning: no sleep allowed while | |
2045 | * holding spinlock. We take the estimate | |
2046 | * and pre-allocate a set of fibs outside the | |
2047 | * lock. | |
2048 | */ | |
2049 | num = le32_to_cpu(dev->init->r7.adapter_fibs_size) | |
2050 | / sizeof(struct hw_fib); /* some extra */ | |
2051 | spin_lock_irqsave(&dev->fib_lock, flagv); | |
2052 | entry = dev->fib_list.next; | |
2053 | while (entry != &dev->fib_list) { | |
2054 | entry = entry->next; | |
2055 | ++num; | |
2056 | } | |
2057 | spin_unlock_irqrestore(&dev->fib_lock, flagv); | |
2058 | ||
2059 | return num; | |
2060 | } | |
2061 | ||
2062 | static int fillup_pools(struct aac_dev *dev, struct hw_fib **hw_fib_pool, | |
2063 | struct fib **fib_pool, | |
2064 | unsigned int num) | |
2065 | { | |
2066 | struct hw_fib **hw_fib_p; | |
2067 | struct fib **fib_p; | |
7c0b5eda RAR |
2068 | |
2069 | hw_fib_p = hw_fib_pool; | |
2070 | fib_p = fib_pool; | |
2071 | while (hw_fib_p < &hw_fib_pool[num]) { | |
2072 | *(hw_fib_p) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL); | |
2073 | if (!(*(hw_fib_p++))) { | |
2074 | --hw_fib_p; | |
2075 | break; | |
2076 | } | |
2077 | ||
2078 | *(fib_p) = kmalloc(sizeof(struct fib), GFP_KERNEL); | |
2079 | if (!(*(fib_p++))) { | |
2080 | kfree(*(--hw_fib_p)); | |
2081 | break; | |
2082 | } | |
2083 | } | |
2084 | ||
393c9273 RAR |
2085 | /* |
2086 | * Get the actual number of allocated fibs | |
2087 | */ | |
7c0b5eda | 2088 | num = hw_fib_p - hw_fib_pool; |
393c9273 | 2089 | return num; |
7c0b5eda RAR |
2090 | } |
2091 | ||
2092 | static void wakeup_fibctx_threads(struct aac_dev *dev, | |
2093 | struct hw_fib **hw_fib_pool, | |
2094 | struct fib **fib_pool, | |
2095 | struct fib *fib, | |
2096 | struct hw_fib *hw_fib, | |
2097 | unsigned int num) | |
2098 | { | |
2099 | unsigned long flagv; | |
2100 | struct list_head *entry; | |
2101 | struct hw_fib **hw_fib_p; | |
2102 | struct fib **fib_p; | |
2103 | u32 time_now, time_last; | |
2104 | struct hw_fib *hw_newfib; | |
2105 | struct fib *newfib; | |
2106 | struct aac_fib_context *fibctx; | |
2107 | ||
2108 | time_now = jiffies/HZ; | |
2109 | spin_lock_irqsave(&dev->fib_lock, flagv); | |
2110 | entry = dev->fib_list.next; | |
2111 | /* | |
2112 | * For each Context that is on the | |
2113 | * fibctxList, make a copy of the | |
2114 | * fib, and then set the event to wake up the | |
2115 | * thread that is waiting for it. | |
2116 | */ | |
2117 | ||
2118 | hw_fib_p = hw_fib_pool; | |
2119 | fib_p = fib_pool; | |
2120 | while (entry != &dev->fib_list) { | |
2121 | /* | |
2122 | * Extract the fibctx | |
2123 | */ | |
2124 | fibctx = list_entry(entry, struct aac_fib_context, | |
2125 | next); | |
2126 | /* | |
2127 | * Check if the queue is getting | |
2128 | * backlogged | |
2129 | */ | |
2130 | if (fibctx->count > 20) { | |
2131 | /* | |
2132 | * It's *not* jiffies folks, | |
2133 | * but jiffies / HZ so do not | |
2134 | * panic ... | |
2135 | */ | |
2136 | time_last = fibctx->jiffies; | |
2137 | /* | |
2138 | * Has it been > 2 minutes | |
2139 | * since the last read off | |
2140 | * the queue? | |
2141 | */ | |
2142 | if ((time_now - time_last) > aif_timeout) { | |
2143 | entry = entry->next; | |
2144 | aac_close_fib_context(dev, fibctx); | |
2145 | continue; | |
2146 | } | |
2147 | } | |
2148 | /* | |
2149 | * Warning: no sleep allowed while | |
2150 | * holding spinlock | |
2151 | */ | |
2152 | if (hw_fib_p >= &hw_fib_pool[num]) { | |
2153 | pr_warn("aifd: didn't allocate NewFib\n"); | |
2154 | entry = entry->next; | |
2155 | continue; | |
2156 | } | |
2157 | ||
2158 | hw_newfib = *hw_fib_p; | |
2159 | *(hw_fib_p++) = NULL; | |
2160 | newfib = *fib_p; | |
2161 | *(fib_p++) = NULL; | |
2162 | /* | |
2163 | * Make the copy of the FIB | |
2164 | */ | |
2165 | memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib)); | |
2166 | memcpy(newfib, fib, sizeof(struct fib)); | |
2167 | newfib->hw_fib_va = hw_newfib; | |
2168 | /* | |
2169 | * Put the FIB onto the | |
2170 | * fibctx's fibs | |
2171 | */ | |
2172 | list_add_tail(&newfib->fiblink, &fibctx->fib_list); | |
2173 | fibctx->count++; | |
2174 | /* | |
2175 | * Set the event to wake up the | |
2176 | * thread that is waiting. | |
2177 | */ | |
2178 | up(&fibctx->wait_sem); | |
2179 | ||
2180 | entry = entry->next; | |
2181 | } | |
2182 | /* | |
2183 | * Set the status of this FIB | |
2184 | */ | |
2185 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); | |
2186 | aac_fib_adapter_complete(fib, sizeof(u32)); | |
2187 | spin_unlock_irqrestore(&dev->fib_lock, flagv); | |
2188 | ||
2189 | } | |
2190 | ||
2191 | static void aac_process_events(struct aac_dev *dev) | |
2192 | { | |
2193 | struct hw_fib *hw_fib; | |
2194 | struct fib *fib; | |
2195 | unsigned long flags; | |
2196 | spinlock_t *t_lock; | |
7c0b5eda RAR |
2197 | |
2198 | t_lock = dev->queues->queue[HostNormCmdQueue].lock; | |
2199 | spin_lock_irqsave(t_lock, flags); | |
2200 | ||
2201 | while (!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) { | |
2202 | struct list_head *entry; | |
2203 | struct aac_aifcmd *aifcmd; | |
2204 | unsigned int num; | |
2205 | struct hw_fib **hw_fib_pool, **hw_fib_p; | |
2206 | struct fib **fib_pool, **fib_p; | |
2207 | ||
2208 | set_current_state(TASK_RUNNING); | |
2209 | ||
2210 | entry = dev->queues->queue[HostNormCmdQueue].cmdq.next; | |
2211 | list_del(entry); | |
2212 | ||
2213 | t_lock = dev->queues->queue[HostNormCmdQueue].lock; | |
2214 | spin_unlock_irqrestore(t_lock, flags); | |
2215 | ||
2216 | fib = list_entry(entry, struct fib, fiblink); | |
2217 | hw_fib = fib->hw_fib_va; | |
be6aeeed RAR |
2218 | if (dev->sa_firmware) { |
2219 | /* Thor AIF */ | |
2220 | aac_handle_sa_aif(dev, fib); | |
2221 | aac_fib_adapter_complete(fib, (u16)sizeof(u32)); | |
e2cdb876 | 2222 | goto free_fib; |
be6aeeed | 2223 | } |
7c0b5eda RAR |
2224 | /* |
2225 | * We will process the FIB here or pass it to a | |
2226 | * worker thread that is TBD. We Really can't | |
2227 | * do anything at this point since we don't have | |
2228 | * anything defined for this thread to do. | |
2229 | */ | |
2230 | memset(fib, 0, sizeof(struct fib)); | |
2231 | fib->type = FSAFS_NTC_FIB_CONTEXT; | |
2232 | fib->size = sizeof(struct fib); | |
2233 | fib->hw_fib_va = hw_fib; | |
2234 | fib->data = hw_fib->data; | |
2235 | fib->dev = dev; | |
2236 | /* | |
2237 | * We only handle AifRequest fibs from the adapter. | |
2238 | */ | |
2239 | ||
2240 | aifcmd = (struct aac_aifcmd *) hw_fib->data; | |
2241 | if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) { | |
2242 | /* Handle Driver Notify Events */ | |
2243 | aac_handle_aif(dev, fib); | |
2244 | *(__le32 *)hw_fib->data = cpu_to_le32(ST_OK); | |
2245 | aac_fib_adapter_complete(fib, (u16)sizeof(u32)); | |
2246 | goto free_fib; | |
2247 | } | |
2248 | /* | |
2249 | * The u32 here is important and intended. We are using | |
2250 | * 32bit wrapping time to fit the adapter field | |
2251 | */ | |
2252 | ||
2253 | /* Sniff events */ | |
2254 | if (aifcmd->command == cpu_to_le32(AifCmdEventNotify) | |
2255 | || aifcmd->command == cpu_to_le32(AifCmdJobProgress)) { | |
2256 | aac_handle_aif(dev, fib); | |
2257 | } | |
2258 | ||
2259 | /* | |
2260 | * get number of fibs to process | |
2261 | */ | |
2262 | num = get_fib_count(dev); | |
2263 | if (!num) | |
2264 | goto free_fib; | |
2265 | ||
2266 | hw_fib_pool = kmalloc_array(num, sizeof(struct hw_fib *), | |
2267 | GFP_KERNEL); | |
2268 | if (!hw_fib_pool) | |
2269 | goto free_fib; | |
2270 | ||
2271 | fib_pool = kmalloc_array(num, sizeof(struct fib *), GFP_KERNEL); | |
2272 | if (!fib_pool) | |
2273 | goto free_hw_fib_pool; | |
2274 | ||
2275 | /* | |
2276 | * Fill up fib pointer pools with actual fibs | |
2277 | * and hw_fibs | |
2278 | */ | |
393c9273 RAR |
2279 | num = fillup_pools(dev, hw_fib_pool, fib_pool, num); |
2280 | if (!num) | |
7c0b5eda RAR |
2281 | goto free_mem; |
2282 | ||
2283 | /* | |
2284 | * wakeup the thread that is waiting for | |
2285 | * the response from fw (ioctl) | |
2286 | */ | |
2287 | wakeup_fibctx_threads(dev, hw_fib_pool, fib_pool, | |
2288 | fib, hw_fib, num); | |
2289 | ||
2290 | free_mem: | |
2291 | /* Free up the remaining resources */ | |
2292 | hw_fib_p = hw_fib_pool; | |
2293 | fib_p = fib_pool; | |
2294 | while (hw_fib_p < &hw_fib_pool[num]) { | |
2295 | kfree(*hw_fib_p); | |
2296 | kfree(*fib_p); | |
2297 | ++fib_p; | |
2298 | ++hw_fib_p; | |
2299 | } | |
2300 | kfree(fib_pool); | |
2301 | free_hw_fib_pool: | |
2302 | kfree(hw_fib_pool); | |
2303 | free_fib: | |
2304 | kfree(fib); | |
2305 | t_lock = dev->queues->queue[HostNormCmdQueue].lock; | |
2306 | spin_lock_irqsave(t_lock, flags); | |
2307 | } | |
2308 | /* | |
2309 | * There are no more AIF's | |
2310 | */ | |
2311 | t_lock = dev->queues->queue[HostNormCmdQueue].lock; | |
2312 | spin_unlock_irqrestore(t_lock, flags); | |
2313 | } | |
8c867b25 | 2314 | |
abd03305 RAR |
2315 | static int aac_send_wellness_command(struct aac_dev *dev, char *wellness_str, |
2316 | u32 datasize) | |
2317 | { | |
2318 | struct aac_srb *srbcmd; | |
2319 | struct sgmap64 *sg64; | |
2320 | dma_addr_t addr; | |
2321 | char *dma_buf; | |
2322 | struct fib *fibptr; | |
2323 | int ret = -ENOMEM; | |
2324 | u32 vbus, vid; | |
2325 | ||
2326 | fibptr = aac_fib_alloc(dev); | |
2327 | if (!fibptr) | |
2328 | goto out; | |
2329 | ||
d74d9d03 MR |
2330 | dma_buf = dma_alloc_coherent(&dev->pdev->dev, datasize, &addr, |
2331 | GFP_KERNEL); | |
abd03305 RAR |
2332 | if (!dma_buf) |
2333 | goto fib_free_out; | |
2334 | ||
2335 | aac_fib_init(fibptr); | |
2336 | ||
bca379d8 RAR |
2337 | vbus = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_bus); |
2338 | vid = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_target); | |
abd03305 RAR |
2339 | |
2340 | srbcmd = (struct aac_srb *)fib_data(fibptr); | |
2341 | ||
2342 | srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); | |
2343 | srbcmd->channel = cpu_to_le32(vbus); | |
2344 | srbcmd->id = cpu_to_le32(vid); | |
2345 | srbcmd->lun = 0; | |
2346 | srbcmd->flags = cpu_to_le32(SRB_DataOut); | |
2347 | srbcmd->timeout = cpu_to_le32(10); | |
2348 | srbcmd->retry_limit = 0; | |
2349 | srbcmd->cdb_size = cpu_to_le32(12); | |
2350 | srbcmd->count = cpu_to_le32(datasize); | |
2351 | ||
2352 | memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb)); | |
2353 | srbcmd->cdb[0] = BMIC_OUT; | |
2354 | srbcmd->cdb[6] = WRITE_HOST_WELLNESS; | |
2355 | memcpy(dma_buf, (char *)wellness_str, datasize); | |
2356 | ||
2357 | sg64 = (struct sgmap64 *)&srbcmd->sg; | |
2358 | sg64->count = cpu_to_le32(1); | |
2359 | sg64->sg[0].addr[1] = cpu_to_le32((u32)(((addr) >> 16) >> 16)); | |
2360 | sg64->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff)); | |
2361 | sg64->sg[0].count = cpu_to_le32(datasize); | |
2362 | ||
2363 | ret = aac_fib_send(ScsiPortCommand64, fibptr, sizeof(struct aac_srb), | |
2364 | FsaNormal, 1, 1, NULL, NULL); | |
2365 | ||
d74d9d03 | 2366 | dma_free_coherent(&dev->pdev->dev, datasize, dma_buf, addr); |
abd03305 RAR |
2367 | |
2368 | /* | |
2369 | * Do not set XferState to zero unless | |
2370 | * receives a response from F/W | |
2371 | */ | |
2372 | if (ret >= 0) | |
2373 | aac_fib_complete(fibptr); | |
2374 | ||
2375 | /* | |
2376 | * FIB should be freed only after | |
2377 | * getting the response from the F/W | |
2378 | */ | |
2379 | if (ret != -ERESTARTSYS) | |
2380 | goto fib_free_out; | |
2381 | ||
2382 | out: | |
2383 | return ret; | |
2384 | fib_free_out: | |
2385 | aac_fib_free(fibptr); | |
2386 | goto out; | |
2387 | } | |
2388 | ||
2389 | int aac_send_safw_hostttime(struct aac_dev *dev, struct timeval *now) | |
2390 | { | |
2391 | struct tm cur_tm; | |
2392 | char wellness_str[] = "<HW>TD\010\0\0\0\0\0\0\0\0\0DW\0\0ZZ"; | |
2393 | u32 datasize = sizeof(wellness_str); | |
2394 | unsigned long local_time; | |
2395 | int ret = -ENODEV; | |
2396 | ||
2397 | if (!dev->sa_firmware) | |
2398 | goto out; | |
2399 | ||
2400 | local_time = (u32)(now->tv_sec - (sys_tz.tz_minuteswest * 60)); | |
2401 | time_to_tm(local_time, 0, &cur_tm); | |
2402 | cur_tm.tm_mon += 1; | |
2403 | cur_tm.tm_year += 1900; | |
2404 | wellness_str[8] = bin2bcd(cur_tm.tm_hour); | |
2405 | wellness_str[9] = bin2bcd(cur_tm.tm_min); | |
2406 | wellness_str[10] = bin2bcd(cur_tm.tm_sec); | |
2407 | wellness_str[12] = bin2bcd(cur_tm.tm_mon); | |
2408 | wellness_str[13] = bin2bcd(cur_tm.tm_mday); | |
2409 | wellness_str[14] = bin2bcd(cur_tm.tm_year / 100); | |
2410 | wellness_str[15] = bin2bcd(cur_tm.tm_year % 100); | |
2411 | ||
2412 | ret = aac_send_wellness_command(dev, wellness_str, datasize); | |
2413 | ||
2414 | out: | |
2415 | return ret; | |
2416 | } | |
2417 | ||
2418 | int aac_send_hosttime(struct aac_dev *dev, struct timeval *now) | |
2419 | { | |
2420 | int ret = -ENOMEM; | |
2421 | struct fib *fibptr; | |
2422 | __le32 *info; | |
2423 | ||
2424 | fibptr = aac_fib_alloc(dev); | |
2425 | if (!fibptr) | |
2426 | goto out; | |
2427 | ||
2428 | aac_fib_init(fibptr); | |
2429 | info = (__le32 *)fib_data(fibptr); | |
2430 | *info = cpu_to_le32(now->tv_sec); | |
2431 | ret = aac_fib_send(SendHostTime, fibptr, sizeof(*info), FsaNormal, | |
2432 | 1, 1, NULL, NULL); | |
2433 | ||
2434 | /* | |
2435 | * Do not set XferState to zero unless | |
2436 | * receives a response from F/W | |
2437 | */ | |
2438 | if (ret >= 0) | |
2439 | aac_fib_complete(fibptr); | |
2440 | ||
2441 | /* | |
2442 | * FIB should be freed only after | |
2443 | * getting the response from the F/W | |
2444 | */ | |
2445 | if (ret != -ERESTARTSYS) | |
2446 | aac_fib_free(fibptr); | |
2447 | ||
2448 | out: | |
2449 | return ret; | |
2450 | } | |
2451 | ||
1da177e4 LT |
2452 | /** |
2453 | * aac_command_thread - command processing thread | |
2454 | * @dev: Adapter to monitor | |
2455 | * | |
2456 | * Waits on the commandready event in it's queue. When the event gets set | |
2457 | * it will pull FIBs off it's queue. It will continue to pull FIBs off | |
2458 | * until the queue is empty. When the queue is empty it will wait for | |
2459 | * more FIBs. | |
2460 | */ | |
8ce3eca4 | 2461 | |
fe27381d | 2462 | int aac_command_thread(void *data) |
1da177e4 | 2463 | { |
fe27381d | 2464 | struct aac_dev *dev = data; |
1da177e4 | 2465 | DECLARE_WAITQUEUE(wait, current); |
29c97684 SM |
2466 | unsigned long next_jiffies = jiffies + HZ; |
2467 | unsigned long next_check_jiffies = next_jiffies; | |
2468 | long difference = HZ; | |
1da177e4 LT |
2469 | |
2470 | /* | |
2471 | * We can only have one thread per adapter for AIF's. | |
2472 | */ | |
2473 | if (dev->aif_thread) | |
2474 | return -EINVAL; | |
fe27381d | 2475 | |
1da177e4 LT |
2476 | /* |
2477 | * Let the DPC know it has a place to send the AIF's to. | |
2478 | */ | |
2479 | dev->aif_thread = 1; | |
2f130980 | 2480 | add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); |
1da177e4 | 2481 | set_current_state(TASK_INTERRUPTIBLE); |
2f130980 | 2482 | dprintk ((KERN_INFO "aac_command_thread start\n")); |
8ce3eca4 | 2483 | while (1) { |
1da177e4 | 2484 | |
7c0b5eda | 2485 | aac_process_events(dev); |
29c97684 SM |
2486 | |
2487 | /* | |
2488 | * Background activity | |
2489 | */ | |
2490 | if ((time_before(next_check_jiffies,next_jiffies)) | |
2491 | && ((difference = next_check_jiffies - jiffies) <= 0)) { | |
2492 | next_check_jiffies = next_jiffies; | |
2493 | if (aac_check_health(dev) == 0) { | |
2494 | difference = ((long)(unsigned)check_interval) | |
2495 | * HZ; | |
2496 | next_check_jiffies = jiffies + difference; | |
2497 | } else if (!dev->queues) | |
2498 | break; | |
2499 | } | |
2500 | if (!time_before(next_check_jiffies,next_jiffies) | |
2501 | && ((difference = next_jiffies - jiffies) <= 0)) { | |
2502 | struct timeval now; | |
2503 | int ret; | |
2504 | ||
2505 | /* Don't even try to talk to adapter if its sick */ | |
2506 | ret = aac_check_health(dev); | |
22a8a0fb | 2507 | if (ret || !dev->queues) |
29c97684 SM |
2508 | break; |
2509 | next_check_jiffies = jiffies | |
2510 | + ((long)(unsigned)check_interval) | |
2511 | * HZ; | |
2512 | do_gettimeofday(&now); | |
2513 | ||
2514 | /* Synchronize our watches */ | |
2515 | if (((1000000 - (1000000 / HZ)) > now.tv_usec) | |
2516 | && (now.tv_usec > (1000000 / HZ))) | |
2517 | difference = (((1000000 - now.tv_usec) * HZ) | |
2518 | + 500000) / 1000000; | |
4eb435c8 | 2519 | else { |
abd03305 RAR |
2520 | if (now.tv_usec > 500000) |
2521 | ++now.tv_sec; | |
2522 | ||
2523 | if (dev->sa_firmware) | |
2524 | ret = | |
2525 | aac_send_safw_hostttime(dev, &now); | |
2526 | else | |
2527 | ret = aac_send_hosttime(dev, &now); | |
2528 | ||
29c97684 | 2529 | difference = (long)(unsigned)update_interval*HZ; |
29c97684 SM |
2530 | } |
2531 | next_jiffies = jiffies + difference; | |
2532 | if (time_before(next_check_jiffies,next_jiffies)) | |
2533 | difference = next_check_jiffies - jiffies; | |
2534 | } | |
2535 | if (difference <= 0) | |
2536 | difference = 1; | |
2537 | set_current_state(TASK_INTERRUPTIBLE); | |
fc4bf75e RAR |
2538 | |
2539 | if (kthread_should_stop()) | |
2540 | break; | |
2541 | ||
29c97684 | 2542 | schedule_timeout(difference); |
1da177e4 | 2543 | |
fe27381d | 2544 | if (kthread_should_stop()) |
1da177e4 | 2545 | break; |
1da177e4 | 2546 | } |
2f130980 MH |
2547 | if (dev->queues) |
2548 | remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait); | |
1da177e4 | 2549 | dev->aif_thread = 0; |
2f130980 | 2550 | return 0; |
1da177e4 | 2551 | } |
8b1462e0 MR |
2552 | |
2553 | int aac_acquire_irq(struct aac_dev *dev) | |
2554 | { | |
2555 | int i; | |
2556 | int j; | |
2557 | int ret = 0; | |
8b1462e0 | 2558 | |
8b1462e0 MR |
2559 | if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) { |
2560 | for (i = 0; i < dev->max_msix; i++) { | |
2561 | dev->aac_msix[i].vector_no = i; | |
2562 | dev->aac_msix[i].dev = dev; | |
0910d8bb | 2563 | if (request_irq(pci_irq_vector(dev->pdev, i), |
8b1462e0 MR |
2564 | dev->a_ops.adapter_intr, |
2565 | 0, "aacraid", &(dev->aac_msix[i]))) { | |
2566 | printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n", | |
2567 | dev->name, dev->id, i); | |
2568 | for (j = 0 ; j < i ; j++) | |
0910d8bb | 2569 | free_irq(pci_irq_vector(dev->pdev, j), |
8b1462e0 MR |
2570 | &(dev->aac_msix[j])); |
2571 | pci_disable_msix(dev->pdev); | |
2572 | ret = -1; | |
2573 | } | |
8b1462e0 MR |
2574 | } |
2575 | } else { | |
2576 | dev->aac_msix[0].vector_no = 0; | |
2577 | dev->aac_msix[0].dev = dev; | |
2578 | ||
2579 | if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, | |
2580 | IRQF_SHARED, "aacraid", | |
2581 | &(dev->aac_msix[0])) < 0) { | |
2582 | if (dev->msi) | |
2583 | pci_disable_msi(dev->pdev); | |
2584 | printk(KERN_ERR "%s%d: Interrupt unavailable.\n", | |
2585 | dev->name, dev->id); | |
2586 | ret = -1; | |
2587 | } | |
2588 | } | |
2589 | return ret; | |
2590 | } | |
2591 | ||
2592 | void aac_free_irq(struct aac_dev *dev) | |
2593 | { | |
2594 | int i; | |
2595 | int cpu; | |
2596 | ||
2597 | cpu = cpumask_first(cpu_online_mask); | |
2598 | if (dev->pdev->device == PMC_DEVICE_S6 || | |
2599 | dev->pdev->device == PMC_DEVICE_S7 || | |
2600 | dev->pdev->device == PMC_DEVICE_S8 || | |
2601 | dev->pdev->device == PMC_DEVICE_S9) { | |
2602 | if (dev->max_msix > 1) { | |
0910d8bb HR |
2603 | for (i = 0; i < dev->max_msix; i++) |
2604 | free_irq(pci_irq_vector(dev->pdev, i), | |
2605 | &(dev->aac_msix[i])); | |
8b1462e0 MR |
2606 | } else { |
2607 | free_irq(dev->pdev->irq, &(dev->aac_msix[0])); | |
2608 | } | |
2609 | } else { | |
2610 | free_irq(dev->pdev->irq, dev); | |
2611 | } | |
2612 | if (dev->msi) | |
2613 | pci_disable_msi(dev->pdev); | |
2614 | else if (dev->max_msix > 1) | |
2615 | pci_disable_msix(dev->pdev); | |
2616 | } |