2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc.
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
8 * Copyright (c) 2000-2010 Adaptec, Inc.
9 * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10 * 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
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)
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.
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.
29 * Abstract: Contain all routines that are required for FSA host/adapter
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>
43 #include <linux/delay.h>
44 #include <linux/kthread.h>
45 #include <linux/interrupt.h>
46 #include <linux/semaphore.h>
47 #include <linux/bcd.h>
48 #include <scsi/scsi.h>
49 #include <scsi/scsi_host.h>
50 #include <scsi/scsi_device.h>
51 #include <scsi/scsi_cmnd.h>
56 * fib_map_alloc - allocate the fib objects
57 * @dev: Adapter to allocate for
59 * Allocate and map the shared PCI space for the FIB blocks used to
60 * talk to the Adaptec firmware.
63 static int fib_map_alloc(struct aac_dev
*dev
)
65 if (dev
->max_fib_size
> AAC_MAX_NATIVE_SIZE
)
66 dev
->max_cmd_size
= AAC_MAX_NATIVE_SIZE
;
68 dev
->max_cmd_size
= dev
->max_fib_size
;
69 if (dev
->max_fib_size
< AAC_MAX_NATIVE_SIZE
) {
70 dev
->max_cmd_size
= AAC_MAX_NATIVE_SIZE
;
72 dev
->max_cmd_size
= dev
->max_fib_size
;
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
,
78 AAC_NUM_MGT_FIB
, &dev
->hw_fib_pa
));
79 dev
->hw_fib_va
= dma_alloc_coherent(&dev
->pdev
->dev
,
80 (dev
->max_cmd_size
+ sizeof(struct aac_fib_xporthdr
))
81 * (dev
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
) + (ALIGN32
- 1),
82 &dev
->hw_fib_pa
, GFP_KERNEL
);
83 if (dev
->hw_fib_va
== NULL
)
89 * aac_fib_map_free - free the fib objects
90 * @dev: Adapter to free
92 * Free the PCI mappings and the memory allocated for FIB blocks
96 void aac_fib_map_free(struct aac_dev
*dev
)
102 if(!dev
->hw_fib_va
|| !dev
->max_cmd_size
)
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;
109 dma_free_coherent(&dev
->pdev
->dev
, alloc_size
, dev
->hw_fib_va
,
112 dev
->hw_fib_va
= NULL
;
116 void aac_fib_vector_assign(struct aac_dev
*dev
)
120 struct fib
*fibptr
= NULL
;
122 for (i
= 0, fibptr
= &dev
->fibs
[i
];
123 i
< (dev
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
);
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;
130 fibptr
->vector_no
= vector
;
132 if (vector
== dev
->max_msix
)
139 * aac_fib_setup - setup the fibs
140 * @dev: Adapter to set up
142 * Allocate the PCI space for the fibs, map it and then initialise the
143 * fib area, the unmapped fib data and also the free list
146 int aac_fib_setup(struct aac_dev
* dev
)
149 struct hw_fib
*hw_fib
;
150 dma_addr_t hw_fib_pa
;
154 while (((i
= fib_map_alloc(dev
)) == -ENOMEM
)
155 && (dev
->scsi_host_ptr
->can_queue
> (64 - AAC_NUM_MGT_FIB
))) {
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
);
164 memset(dev
->hw_fib_va
, 0,
165 (dev
->max_cmd_size
+ sizeof(struct aac_fib_xporthdr
)) *
166 (dev
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
));
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
));
173 /* add Xport header */
174 hw_fib
= (struct hw_fib
*)((unsigned char *)hw_fib
+
175 sizeof(struct aac_fib_xporthdr
));
176 hw_fib_pa
+= sizeof(struct aac_fib_xporthdr
);
179 * Initialise the fibs
181 for (i
= 0, fibptr
= &dev
->fibs
[i
];
182 i
< (dev
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
);
186 fibptr
->size
= sizeof(struct fib
);
188 fibptr
->hw_fib_va
= hw_fib
;
189 fibptr
->data
= (void *) fibptr
->hw_fib_va
->data
;
190 fibptr
->next
= fibptr
+1; /* Forward chain the fibs */
191 sema_init(&fibptr
->event_wait
, 0);
192 spin_lock_init(&fibptr
->event_lock
);
193 hw_fib
->header
.XferState
= cpu_to_le32(0xffffffff);
194 hw_fib
->header
.SenderSize
=
195 cpu_to_le16(dev
->max_fib_size
); /* ?? max_cmd_size */
196 fibptr
->hw_fib_pa
= hw_fib_pa
;
197 fibptr
->hw_sgl_pa
= hw_fib_pa
+
198 offsetof(struct aac_hba_cmd_req
, sge
[2]);
200 * one element is for the ptr to the separate sg list,
201 * second element for 32 byte alignment
203 fibptr
->hw_error_pa
= hw_fib_pa
+
204 offsetof(struct aac_native_hba
, resp
.resp_bytes
[0]);
206 hw_fib
= (struct hw_fib
*)((unsigned char *)hw_fib
+
207 dev
->max_cmd_size
+ sizeof(struct aac_fib_xporthdr
));
208 hw_fib_pa
= hw_fib_pa
+
209 dev
->max_cmd_size
+ sizeof(struct aac_fib_xporthdr
);
213 *Assign vector numbers to fibs
215 aac_fib_vector_assign(dev
);
218 * Add the fib chain to the free list
220 dev
->fibs
[dev
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
- 1].next
= NULL
;
222 * Set 8 fibs aside for management tools
224 dev
->free_fib
= &dev
->fibs
[dev
->scsi_host_ptr
->can_queue
];
229 * aac_fib_alloc_tag-allocate a fib using tags
230 * @dev: Adapter to allocate the fib for
232 * Allocate a fib from the adapter fib pool using tags
233 * from the blk layer.
236 struct fib
*aac_fib_alloc_tag(struct aac_dev
*dev
, struct scsi_cmnd
*scmd
)
240 fibptr
= &dev
->fibs
[scmd
->request
->tag
];
242 * Null out fields that depend on being zero at the start of
245 fibptr
->hw_fib_va
->header
.XferState
= 0;
246 fibptr
->type
= FSAFS_NTC_FIB_CONTEXT
;
247 fibptr
->callback_data
= NULL
;
248 fibptr
->callback
= NULL
;
254 * aac_fib_alloc - allocate a fib
255 * @dev: Adapter to allocate the fib for
257 * Allocate a fib from the adapter fib pool. If the pool is empty we
261 struct fib
*aac_fib_alloc(struct aac_dev
*dev
)
265 spin_lock_irqsave(&dev
->fib_lock
, flags
);
266 fibptr
= dev
->free_fib
;
268 spin_unlock_irqrestore(&dev
->fib_lock
, flags
);
271 dev
->free_fib
= fibptr
->next
;
272 spin_unlock_irqrestore(&dev
->fib_lock
, flags
);
274 * Set the proper node type code and node byte size
276 fibptr
->type
= FSAFS_NTC_FIB_CONTEXT
;
277 fibptr
->size
= sizeof(struct fib
);
279 * Null out fields that depend on being zero at the start of
282 fibptr
->hw_fib_va
->header
.XferState
= 0;
284 fibptr
->callback
= NULL
;
285 fibptr
->callback_data
= NULL
;
291 * aac_fib_free - free a fib
292 * @fibptr: fib to free up
294 * Frees up a fib and places it on the appropriate queue
297 void aac_fib_free(struct fib
*fibptr
)
301 if (fibptr
->done
== 2)
304 spin_lock_irqsave(&fibptr
->dev
->fib_lock
, flags
);
305 if (unlikely(fibptr
->flags
& FIB_CONTEXT_FLAG_TIMED_OUT
))
306 aac_config
.fib_timeouts
++;
307 if (!(fibptr
->flags
& FIB_CONTEXT_FLAG_NATIVE_HBA
) &&
308 fibptr
->hw_fib_va
->header
.XferState
!= 0) {
309 printk(KERN_WARNING
"aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n",
311 le32_to_cpu(fibptr
->hw_fib_va
->header
.XferState
));
313 fibptr
->next
= fibptr
->dev
->free_fib
;
314 fibptr
->dev
->free_fib
= fibptr
;
315 spin_unlock_irqrestore(&fibptr
->dev
->fib_lock
, flags
);
319 * aac_fib_init - initialise a fib
320 * @fibptr: The fib to initialize
322 * Set up the generic fib fields ready for use
325 void aac_fib_init(struct fib
*fibptr
)
327 struct hw_fib
*hw_fib
= fibptr
->hw_fib_va
;
329 memset(&hw_fib
->header
, 0, sizeof(struct aac_fibhdr
));
330 hw_fib
->header
.StructType
= FIB_MAGIC
;
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
);
333 hw_fib
->header
.u
.ReceiverFibAddress
= cpu_to_le32(fibptr
->hw_fib_pa
);
334 hw_fib
->header
.SenderSize
= cpu_to_le16(fibptr
->dev
->max_fib_size
);
338 * fib_deallocate - deallocate a fib
339 * @fibptr: fib to deallocate
341 * Will deallocate and return to the free pool the FIB pointed to by the
345 static void fib_dealloc(struct fib
* fibptr
)
347 struct hw_fib
*hw_fib
= fibptr
->hw_fib_va
;
348 hw_fib
->header
.XferState
= 0;
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.
359 * aac_get_entry - get a queue entry
362 * @entry: Entry return
363 * @index: Index return
364 * @nonotify: notification control
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
371 static int aac_get_entry (struct aac_dev
* dev
, u32 qid
, struct aac_entry
**entry
, u32
* index
, unsigned long *nonotify
)
373 struct aac_queue
* q
;
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.
383 q
= &dev
->queues
->queue
[qid
];
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
))) {
389 if (qid
== AdapNormCmdQueue
)
390 idx
= ADAP_NORM_CMD_ENTRIES
;
392 idx
= ADAP_NORM_RESP_ENTRIES
;
394 if (idx
!= le32_to_cpu(*(q
->headers
.consumer
)))
398 if (qid
== AdapNormCmdQueue
) {
399 if (*index
>= ADAP_NORM_CMD_ENTRIES
)
400 *index
= 0; /* Wrap to front of the Producer Queue. */
402 if (*index
>= ADAP_NORM_RESP_ENTRIES
)
403 *index
= 0; /* Wrap to front of the Producer Queue. */
407 if ((*index
+ 1) == le32_to_cpu(*(q
->headers
.consumer
))) {
408 printk(KERN_WARNING
"Queue %d full, %u outstanding.\n",
409 qid
, atomic_read(&q
->numpending
));
412 *entry
= q
->base
+ *index
;
418 * aac_queue_get - get the next free QE
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
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
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
)
435 struct aac_entry
* entry
= NULL
;
438 if (qid
== AdapNormCmdQueue
) {
439 /* if no entries wait for some if caller wants to */
440 while (!aac_get_entry(dev
, qid
, &entry
, index
, nonotify
)) {
441 printk(KERN_ERR
"GetEntries failed\n");
444 * Setup queue entry with a command, status and fib mapped
446 entry
->size
= cpu_to_le32(le16_to_cpu(hw_fib
->header
.Size
));
449 while (!aac_get_entry(dev
, qid
, &entry
, index
, nonotify
)) {
450 /* if no entries wait for some if caller wants to */
453 * Setup queue entry with command, status and fib mapped
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 */
458 hw_fib
->header
.u
.ReceiverFibAddress
= hw_fib
->header
.SenderFibAddress
; /* Let the adapter now where to find its data */
462 * If MapFib is true than we need to map the Fib and put pointers
463 * in the queue entry.
466 entry
->addr
= cpu_to_le32(fibptr
->hw_fib_pa
);
471 * Define the highest level of host to adapter communication routines.
472 * These routines will support host to adapter FS commuication. These
473 * routines have no knowledge of the commuication method used. This level
474 * sends and receives FIBs. This level has no knowledge of how these FIBs
475 * get passed back and forth.
479 * aac_fib_send - send a fib to the adapter
480 * @command: Command to send
482 * @size: Size of fib data area
483 * @priority: Priority of Fib
484 * @wait: Async/sync select
485 * @reply: True if a reply is wanted
486 * @callback: Called with reply
487 * @callback_data: Passed to callback
489 * Sends the requested FIB to the adapter and optionally will wait for a
490 * response FIB. If the caller does not wish to wait for a response than
491 * an event to wait on must be supplied. This event will be set when a
492 * response FIB is received from the adapter.
495 int aac_fib_send(u16 command
, struct fib
*fibptr
, unsigned long size
,
496 int priority
, int wait
, int reply
, fib_callback callback
,
499 struct aac_dev
* dev
= fibptr
->dev
;
500 struct hw_fib
* hw_fib
= fibptr
->hw_fib_va
;
501 unsigned long flags
= 0;
502 unsigned long mflags
= 0;
503 unsigned long sflags
= 0;
505 if (!(hw_fib
->header
.XferState
& cpu_to_le32(HostOwned
)))
508 if (hw_fib
->header
.XferState
& cpu_to_le32(AdapterProcessed
))
512 * There are 5 cases with the wait and response requested flags.
513 * The only invalid cases are if the caller requests to wait and
514 * does not request a response and if the caller does not want a
515 * response and the Fib is not allocated from pool. If a response
516 * is not requesed the Fib will just be deallocaed by the DPC
517 * routine when the response comes back from the adapter. No
518 * further processing will be done besides deleting the Fib. We
519 * will have a debug mode where the adapter can notify the host
520 * it had a problem and the host can log that fact.
523 if (wait
&& !reply
) {
525 } else if (!wait
&& reply
) {
526 hw_fib
->header
.XferState
|= cpu_to_le32(Async
| ResponseExpected
);
527 FIB_COUNTER_INCREMENT(aac_config
.AsyncSent
);
528 } else if (!wait
&& !reply
) {
529 hw_fib
->header
.XferState
|= cpu_to_le32(NoResponseExpected
);
530 FIB_COUNTER_INCREMENT(aac_config
.NoResponseSent
);
531 } else if (wait
&& reply
) {
532 hw_fib
->header
.XferState
|= cpu_to_le32(ResponseExpected
);
533 FIB_COUNTER_INCREMENT(aac_config
.NormalSent
);
536 * Map the fib into 32bits by using the fib number
539 hw_fib
->header
.SenderFibAddress
=
540 cpu_to_le32(((u32
)(fibptr
- dev
->fibs
)) << 2);
542 /* use the same shifted value for handle to be compatible
543 * with the new native hba command handle
545 hw_fib
->header
.Handle
=
546 cpu_to_le32((((u32
)(fibptr
- dev
->fibs
)) << 2) + 1);
549 * Set FIB state to indicate where it came from and if we want a
550 * response from the adapter. Also load the command from the
553 * Map the hw fib pointer as a 32bit value
555 hw_fib
->header
.Command
= cpu_to_le16(command
);
556 hw_fib
->header
.XferState
|= cpu_to_le32(SentFromHost
);
558 * Set the size of the Fib we want to send to the adapter
560 hw_fib
->header
.Size
= cpu_to_le16(sizeof(struct aac_fibhdr
) + size
);
561 if (le16_to_cpu(hw_fib
->header
.Size
) > le16_to_cpu(hw_fib
->header
.SenderSize
)) {
565 * Get a queue entry connect the FIB to it and send an notify
566 * the adapter a command is ready.
568 hw_fib
->header
.XferState
|= cpu_to_le32(NormalPriority
);
571 * Fill in the Callback and CallbackContext if we are not
575 fibptr
->callback
= callback
;
576 fibptr
->callback_data
= callback_data
;
577 fibptr
->flags
= FIB_CONTEXT_FLAG
;
582 FIB_COUNTER_INCREMENT(aac_config
.FibsSent
);
584 dprintk((KERN_DEBUG
"Fib contents:.\n"));
585 dprintk((KERN_DEBUG
" Command = %d.\n", le32_to_cpu(hw_fib
->header
.Command
)));
586 dprintk((KERN_DEBUG
" SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount
*)fib_data(fibptr
))->command
)));
587 dprintk((KERN_DEBUG
" XferState = %x.\n", le32_to_cpu(hw_fib
->header
.XferState
)));
588 dprintk((KERN_DEBUG
" hw_fib va being sent=%p\n",fibptr
->hw_fib_va
));
589 dprintk((KERN_DEBUG
" hw_fib pa being sent=%lx\n",(ulong
)fibptr
->hw_fib_pa
));
590 dprintk((KERN_DEBUG
" fib being sent=%p\n",fibptr
));
597 spin_lock_irqsave(&dev
->manage_lock
, mflags
);
598 if (dev
->management_fib_count
>= AAC_NUM_MGT_FIB
) {
599 printk(KERN_INFO
"No management Fibs Available:%d\n",
600 dev
->management_fib_count
);
601 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
604 dev
->management_fib_count
++;
605 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
606 spin_lock_irqsave(&fibptr
->event_lock
, flags
);
609 if (dev
->sync_mode
) {
611 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
612 spin_lock_irqsave(&dev
->sync_lock
, sflags
);
614 list_add_tail(&fibptr
->fiblink
, &dev
->sync_fib_list
);
615 spin_unlock_irqrestore(&dev
->sync_lock
, sflags
);
617 dev
->sync_fib
= fibptr
;
618 spin_unlock_irqrestore(&dev
->sync_lock
, sflags
);
619 aac_adapter_sync_cmd(dev
, SEND_SYNCHRONOUS_FIB
,
620 (u32
)fibptr
->hw_fib_pa
, 0, 0, 0, 0, 0,
621 NULL
, NULL
, NULL
, NULL
, NULL
);
624 fibptr
->flags
|= FIB_CONTEXT_FLAG_WAIT
;
625 if (down_interruptible(&fibptr
->event_wait
)) {
626 fibptr
->flags
&= ~FIB_CONTEXT_FLAG_WAIT
;
634 if (aac_adapter_deliver(fibptr
) != 0) {
635 printk(KERN_ERR
"aac_fib_send: returned -EBUSY\n");
637 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
638 spin_lock_irqsave(&dev
->manage_lock
, mflags
);
639 dev
->management_fib_count
--;
640 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
647 * If the caller wanted us to wait for response wait now.
651 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
652 /* Only set for first known interruptable command */
655 * *VERY* Dangerous to time out a command, the
656 * assumption is made that we have no hope of
657 * functioning because an interrupt routing or other
658 * hardware failure has occurred.
660 unsigned long timeout
= jiffies
+ (180 * HZ
); /* 3 minutes */
661 while (down_trylock(&fibptr
->event_wait
)) {
663 if (time_is_before_eq_jiffies(timeout
)) {
664 struct aac_queue
* q
= &dev
->queues
->queue
[AdapNormCmdQueue
];
665 atomic_dec(&q
->numpending
);
667 printk(KERN_ERR
"aacraid: aac_fib_send: first asynchronous command timed out.\n"
668 "Usually a result of a PCI interrupt routing problem;\n"
669 "update mother board BIOS or consider utilizing one of\n"
670 "the SAFE mode kernel options (acpi, apic etc)\n");
675 if (unlikely(pci_channel_offline(dev
->pdev
)))
678 if ((blink
= aac_adapter_check_health(dev
)) > 0) {
680 printk(KERN_ERR
"aacraid: aac_fib_send: adapter blinkLED 0x%x.\n"
681 "Usually a result of a serious unrecoverable hardware problem\n",
687 * Allow other processes / CPUS to use core
691 } else if (down_interruptible(&fibptr
->event_wait
)) {
692 /* Do nothing ... satisfy
693 * down_interruptible must_check */
696 spin_lock_irqsave(&fibptr
->event_lock
, flags
);
697 if (fibptr
->done
== 0) {
698 fibptr
->done
= 2; /* Tell interrupt we aborted */
699 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
702 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
703 BUG_ON(fibptr
->done
== 0);
705 if(unlikely(fibptr
->flags
& FIB_CONTEXT_FLAG_TIMED_OUT
))
710 * If the user does not want a response than return success otherwise
719 int aac_hba_send(u8 command
, struct fib
*fibptr
, fib_callback callback
,
722 struct aac_dev
*dev
= fibptr
->dev
;
724 unsigned long flags
= 0;
725 unsigned long mflags
= 0;
727 fibptr
->flags
= (FIB_CONTEXT_FLAG
| FIB_CONTEXT_FLAG_NATIVE_HBA
);
730 fibptr
->callback
= callback
;
731 fibptr
->callback_data
= callback_data
;
736 if (command
== HBA_IU_TYPE_SCSI_CMD_REQ
) {
737 struct aac_hba_cmd_req
*hbacmd
=
738 (struct aac_hba_cmd_req
*)fibptr
->hw_fib_va
;
740 hbacmd
->iu_type
= command
;
741 /* bit1 of request_id must be 0 */
743 cpu_to_le32((((u32
)(fibptr
- dev
->fibs
)) << 2) + 1);
744 fibptr
->flags
|= FIB_CONTEXT_FLAG_SCSI_CMD
;
745 } else if (command
!= HBA_IU_TYPE_SCSI_TM_REQ
)
750 spin_lock_irqsave(&dev
->manage_lock
, mflags
);
751 if (dev
->management_fib_count
>= AAC_NUM_MGT_FIB
) {
752 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
755 dev
->management_fib_count
++;
756 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
757 spin_lock_irqsave(&fibptr
->event_lock
, flags
);
760 if (aac_adapter_deliver(fibptr
) != 0) {
762 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
763 spin_lock_irqsave(&dev
->manage_lock
, mflags
);
764 dev
->management_fib_count
--;
765 spin_unlock_irqrestore(&dev
->manage_lock
, mflags
);
769 FIB_COUNTER_INCREMENT(aac_config
.NativeSent
);
773 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
775 if (unlikely(pci_channel_offline(dev
->pdev
)))
778 fibptr
->flags
|= FIB_CONTEXT_FLAG_WAIT
;
779 if (down_interruptible(&fibptr
->event_wait
))
781 fibptr
->flags
&= ~(FIB_CONTEXT_FLAG_WAIT
);
783 spin_lock_irqsave(&fibptr
->event_lock
, flags
);
784 if ((fibptr
->done
== 0) || (fibptr
->done
== 2)) {
785 fibptr
->done
= 2; /* Tell interrupt we aborted */
786 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
789 spin_unlock_irqrestore(&fibptr
->event_lock
, flags
);
790 WARN_ON(fibptr
->done
== 0);
792 if (unlikely(fibptr
->flags
& FIB_CONTEXT_FLAG_TIMED_OUT
))
802 * aac_consumer_get - get the top of the queue
805 * @entry: Return entry
807 * Will return a pointer to the entry on the top of the queue requested that
808 * we are a consumer of, and return the address of the queue entry. It does
809 * not change the state of the queue.
812 int aac_consumer_get(struct aac_dev
* dev
, struct aac_queue
* q
, struct aac_entry
**entry
)
816 if (le32_to_cpu(*q
->headers
.producer
) == le32_to_cpu(*q
->headers
.consumer
)) {
820 * The consumer index must be wrapped if we have reached
821 * the end of the queue, else we just use the entry
822 * pointed to by the header index
824 if (le32_to_cpu(*q
->headers
.consumer
) >= q
->entries
)
827 index
= le32_to_cpu(*q
->headers
.consumer
);
828 *entry
= q
->base
+ index
;
835 * aac_consumer_free - free consumer entry
840 * Frees up the current top of the queue we are a consumer of. If the
841 * queue was full notify the producer that the queue is no longer full.
844 void aac_consumer_free(struct aac_dev
* dev
, struct aac_queue
*q
, u32 qid
)
849 if ((le32_to_cpu(*q
->headers
.producer
)+1) == le32_to_cpu(*q
->headers
.consumer
))
852 if (le32_to_cpu(*q
->headers
.consumer
) >= q
->entries
)
853 *q
->headers
.consumer
= cpu_to_le32(1);
855 le32_add_cpu(q
->headers
.consumer
, 1);
860 case HostNormCmdQueue
:
861 notify
= HostNormCmdNotFull
;
863 case HostNormRespQueue
:
864 notify
= HostNormRespNotFull
;
870 aac_adapter_notify(dev
, notify
);
875 * aac_fib_adapter_complete - complete adapter issued fib
876 * @fibptr: fib to complete
879 * Will do all necessary work to complete a FIB that was sent from
883 int aac_fib_adapter_complete(struct fib
*fibptr
, unsigned short size
)
885 struct hw_fib
* hw_fib
= fibptr
->hw_fib_va
;
886 struct aac_dev
* dev
= fibptr
->dev
;
887 struct aac_queue
* q
;
888 unsigned long nointr
= 0;
889 unsigned long qflags
;
891 if (dev
->comm_interface
== AAC_COMM_MESSAGE_TYPE1
||
892 dev
->comm_interface
== AAC_COMM_MESSAGE_TYPE2
||
893 dev
->comm_interface
== AAC_COMM_MESSAGE_TYPE3
) {
898 if (hw_fib
->header
.XferState
== 0) {
899 if (dev
->comm_interface
== AAC_COMM_MESSAGE
)
904 * If we plan to do anything check the structure type first.
906 if (hw_fib
->header
.StructType
!= FIB_MAGIC
&&
907 hw_fib
->header
.StructType
!= FIB_MAGIC2
&&
908 hw_fib
->header
.StructType
!= FIB_MAGIC2_64
) {
909 if (dev
->comm_interface
== AAC_COMM_MESSAGE
)
914 * This block handles the case where the adapter had sent us a
915 * command and we have finished processing the command. We
916 * call completeFib when we are done processing the command
917 * and want to send a response back to the adapter. This will
918 * send the completed cdb to the adapter.
920 if (hw_fib
->header
.XferState
& cpu_to_le32(SentFromAdapter
)) {
921 if (dev
->comm_interface
== AAC_COMM_MESSAGE
) {
925 hw_fib
->header
.XferState
|= cpu_to_le32(HostProcessed
);
927 size
+= sizeof(struct aac_fibhdr
);
928 if (size
> le16_to_cpu(hw_fib
->header
.SenderSize
))
930 hw_fib
->header
.Size
= cpu_to_le16(size
);
932 q
= &dev
->queues
->queue
[AdapNormRespQueue
];
933 spin_lock_irqsave(q
->lock
, qflags
);
934 aac_queue_get(dev
, &index
, AdapNormRespQueue
, hw_fib
, 1, NULL
, &nointr
);
935 *(q
->headers
.producer
) = cpu_to_le32(index
+ 1);
936 spin_unlock_irqrestore(q
->lock
, qflags
);
937 if (!(nointr
& (int)aac_config
.irq_mod
))
938 aac_adapter_notify(dev
, AdapNormRespQueue
);
941 printk(KERN_WARNING
"aac_fib_adapter_complete: "
942 "Unknown xferstate detected.\n");
949 * aac_fib_complete - fib completion handler
950 * @fib: FIB to complete
952 * Will do all necessary work to complete a FIB.
955 int aac_fib_complete(struct fib
*fibptr
)
957 struct hw_fib
* hw_fib
= fibptr
->hw_fib_va
;
959 if (fibptr
->flags
& FIB_CONTEXT_FLAG_NATIVE_HBA
) {
965 * Check for a fib which has already been completed or with a
966 * status wait timeout
969 if (hw_fib
->header
.XferState
== 0 || fibptr
->done
== 2)
972 * If we plan to do anything check the structure type first.
975 if (hw_fib
->header
.StructType
!= FIB_MAGIC
&&
976 hw_fib
->header
.StructType
!= FIB_MAGIC2
&&
977 hw_fib
->header
.StructType
!= FIB_MAGIC2_64
)
980 * This block completes a cdb which orginated on the host and we
981 * just need to deallocate the cdb or reinit it. At this point the
982 * command is complete that we had sent to the adapter and this
983 * cdb could be reused.
986 if((hw_fib
->header
.XferState
& cpu_to_le32(SentFromHost
)) &&
987 (hw_fib
->header
.XferState
& cpu_to_le32(AdapterProcessed
)))
991 else if(hw_fib
->header
.XferState
& cpu_to_le32(SentFromHost
))
994 * This handles the case when the host has aborted the I/O
995 * to the adapter because the adapter is not responding
998 } else if(hw_fib
->header
.XferState
& cpu_to_le32(HostOwned
)) {
1007 * aac_printf - handle printf from firmware
1009 * @val: Message info
1011 * Print a message passed to us by the controller firmware on the
1015 void aac_printf(struct aac_dev
*dev
, u32 val
)
1017 char *cp
= dev
->printfbuf
;
1018 if (dev
->printf_enabled
)
1020 int length
= val
& 0xffff;
1021 int level
= (val
>> 16) & 0xffff;
1024 * The size of the printfbuf is set in port.c
1025 * There is no variable or define for it
1029 if (cp
[length
] != 0)
1031 if (level
== LOG_AAC_HIGH_ERROR
)
1032 printk(KERN_WARNING
"%s:%s", dev
->name
, cp
);
1034 printk(KERN_INFO
"%s:%s", dev
->name
, cp
);
1039 static inline int aac_aif_data(struct aac_aifcmd
*aifcmd
, uint32_t index
)
1041 return le32_to_cpu(((__le32
*)aifcmd
->data
)[index
]);
1045 static void aac_handle_aif_bu(struct aac_dev
*dev
, struct aac_aifcmd
*aifcmd
)
1047 switch (aac_aif_data(aifcmd
, 1)) {
1048 case AifBuCacheDataLoss
:
1049 if (aac_aif_data(aifcmd
, 2))
1050 dev_info(&dev
->pdev
->dev
, "Backup unit had cache data loss - [%d]\n",
1051 aac_aif_data(aifcmd
, 2));
1053 dev_info(&dev
->pdev
->dev
, "Backup Unit had cache data loss\n");
1055 case AifBuCacheDataRecover
:
1056 if (aac_aif_data(aifcmd
, 2))
1057 dev_info(&dev
->pdev
->dev
, "DDR cache data recovered successfully - [%d]\n",
1058 aac_aif_data(aifcmd
, 2));
1060 dev_info(&dev
->pdev
->dev
, "DDR cache data recovered successfully\n");
1066 * aac_handle_aif - Handle a message from the firmware
1067 * @dev: Which adapter this fib is from
1068 * @fibptr: Pointer to fibptr from adapter
1070 * This routine handles a driver notify fib from the adapter and
1071 * dispatches it to the appropriate routine for handling.
1074 #define AIF_SNIFF_TIMEOUT (500*HZ)
1075 static void aac_handle_aif(struct aac_dev
* dev
, struct fib
* fibptr
)
1077 struct hw_fib
* hw_fib
= fibptr
->hw_fib_va
;
1078 struct aac_aifcmd
* aifcmd
= (struct aac_aifcmd
*)hw_fib
->data
;
1079 u32 channel
, id
, lun
, container
;
1080 struct scsi_device
*device
;
1086 } device_config_needed
= NOTHING
;
1088 /* Sniff for container changes */
1090 if (!dev
|| !dev
->fsa_dev
)
1092 container
= channel
= id
= lun
= (u32
)-1;
1095 * We have set this up to try and minimize the number of
1096 * re-configures that take place. As a result of this when
1097 * certain AIF's come in we will set a flag waiting for another
1098 * type of AIF before setting the re-config flag.
1100 switch (le32_to_cpu(aifcmd
->command
)) {
1101 case AifCmdDriverNotify
:
1102 switch (le32_to_cpu(((__le32
*)aifcmd
->data
)[0])) {
1103 case AifRawDeviceRemove
:
1104 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1105 if ((container
>> 28)) {
1106 container
= (u32
)-1;
1109 channel
= (container
>> 24) & 0xF;
1110 if (channel
>= dev
->maximum_num_channels
) {
1111 container
= (u32
)-1;
1114 id
= container
& 0xFFFF;
1115 if (id
>= dev
->maximum_num_physicals
) {
1116 container
= (u32
)-1;
1119 lun
= (container
>> 16) & 0xFF;
1120 container
= (u32
)-1;
1121 channel
= aac_phys_to_logical(channel
);
1122 device_config_needed
= DELETE
;
1126 * Morph or Expand complete
1128 case AifDenMorphComplete
:
1129 case AifDenVolumeExtendComplete
:
1130 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1131 if (container
>= dev
->maximum_num_containers
)
1135 * Find the scsi_device associated with the SCSI
1136 * address. Make sure we have the right array, and if
1137 * so set the flag to initiate a new re-config once we
1138 * see an AifEnConfigChange AIF come through.
1141 if ((dev
!= NULL
) && (dev
->scsi_host_ptr
!= NULL
)) {
1142 device
= scsi_device_lookup(dev
->scsi_host_ptr
,
1143 CONTAINER_TO_CHANNEL(container
),
1144 CONTAINER_TO_ID(container
),
1145 CONTAINER_TO_LUN(container
));
1147 dev
->fsa_dev
[container
].config_needed
= CHANGE
;
1148 dev
->fsa_dev
[container
].config_waiting_on
= AifEnConfigChange
;
1149 dev
->fsa_dev
[container
].config_waiting_stamp
= jiffies
;
1150 scsi_device_put(device
);
1156 * If we are waiting on something and this happens to be
1157 * that thing then set the re-configure flag.
1159 if (container
!= (u32
)-1) {
1160 if (container
>= dev
->maximum_num_containers
)
1162 if ((dev
->fsa_dev
[container
].config_waiting_on
==
1163 le32_to_cpu(*(__le32
*)aifcmd
->data
)) &&
1164 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
))
1165 dev
->fsa_dev
[container
].config_waiting_on
= 0;
1166 } else for (container
= 0;
1167 container
< dev
->maximum_num_containers
; ++container
) {
1168 if ((dev
->fsa_dev
[container
].config_waiting_on
==
1169 le32_to_cpu(*(__le32
*)aifcmd
->data
)) &&
1170 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
))
1171 dev
->fsa_dev
[container
].config_waiting_on
= 0;
1175 case AifCmdEventNotify
:
1176 switch (le32_to_cpu(((__le32
*)aifcmd
->data
)[0])) {
1177 case AifEnBatteryEvent
:
1178 dev
->cache_protected
=
1179 (((__le32
*)aifcmd
->data
)[1] == cpu_to_le32(3));
1184 case AifEnAddContainer
:
1185 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1186 if (container
>= dev
->maximum_num_containers
)
1188 dev
->fsa_dev
[container
].config_needed
= ADD
;
1189 dev
->fsa_dev
[container
].config_waiting_on
=
1191 dev
->fsa_dev
[container
].config_waiting_stamp
= jiffies
;
1197 case AifEnDeleteContainer
:
1198 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1199 if (container
>= dev
->maximum_num_containers
)
1201 dev
->fsa_dev
[container
].config_needed
= DELETE
;
1202 dev
->fsa_dev
[container
].config_waiting_on
=
1204 dev
->fsa_dev
[container
].config_waiting_stamp
= jiffies
;
1208 * Container change detected. If we currently are not
1209 * waiting on something else, setup to wait on a Config Change.
1211 case AifEnContainerChange
:
1212 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1213 if (container
>= dev
->maximum_num_containers
)
1215 if (dev
->fsa_dev
[container
].config_waiting_on
&&
1216 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
))
1218 dev
->fsa_dev
[container
].config_needed
= CHANGE
;
1219 dev
->fsa_dev
[container
].config_waiting_on
=
1221 dev
->fsa_dev
[container
].config_waiting_stamp
= jiffies
;
1224 case AifEnConfigChange
:
1228 case AifEnDeleteJBOD
:
1229 container
= le32_to_cpu(((__le32
*)aifcmd
->data
)[1]);
1230 if ((container
>> 28)) {
1231 container
= (u32
)-1;
1234 channel
= (container
>> 24) & 0xF;
1235 if (channel
>= dev
->maximum_num_channels
) {
1236 container
= (u32
)-1;
1239 id
= container
& 0xFFFF;
1240 if (id
>= dev
->maximum_num_physicals
) {
1241 container
= (u32
)-1;
1244 lun
= (container
>> 16) & 0xFF;
1245 container
= (u32
)-1;
1246 channel
= aac_phys_to_logical(channel
);
1247 device_config_needed
=
1248 (((__le32
*)aifcmd
->data
)[0] ==
1249 cpu_to_le32(AifEnAddJBOD
)) ? ADD
: DELETE
;
1250 if (device_config_needed
== ADD
) {
1251 device
= scsi_device_lookup(dev
->scsi_host_ptr
,
1256 scsi_remove_device(device
);
1257 scsi_device_put(device
);
1262 case AifEnEnclosureManagement
:
1264 * If in JBOD mode, automatic exposure of new
1265 * physical target to be suppressed until configured.
1269 switch (le32_to_cpu(((__le32
*)aifcmd
->data
)[3])) {
1270 case EM_DRIVE_INSERTION
:
1271 case EM_DRIVE_REMOVAL
:
1272 case EM_SES_DRIVE_INSERTION
:
1273 case EM_SES_DRIVE_REMOVAL
:
1274 container
= le32_to_cpu(
1275 ((__le32
*)aifcmd
->data
)[2]);
1276 if ((container
>> 28)) {
1277 container
= (u32
)-1;
1280 channel
= (container
>> 24) & 0xF;
1281 if (channel
>= dev
->maximum_num_channels
) {
1282 container
= (u32
)-1;
1285 id
= container
& 0xFFFF;
1286 lun
= (container
>> 16) & 0xFF;
1287 container
= (u32
)-1;
1288 if (id
>= dev
->maximum_num_physicals
) {
1289 /* legacy dev_t ? */
1290 if ((0x2000 <= id
) || lun
|| channel
||
1291 ((channel
= (id
>> 7) & 0x3F) >=
1292 dev
->maximum_num_channels
))
1294 lun
= (id
>> 4) & 7;
1297 channel
= aac_phys_to_logical(channel
);
1298 device_config_needed
=
1299 ((((__le32
*)aifcmd
->data
)[3]
1300 == cpu_to_le32(EM_DRIVE_INSERTION
)) ||
1301 (((__le32
*)aifcmd
->data
)[3]
1302 == cpu_to_le32(EM_SES_DRIVE_INSERTION
))) ?
1306 case AifBuManagerEvent
:
1307 aac_handle_aif_bu(dev
, aifcmd
);
1312 * If we are waiting on something and this happens to be
1313 * that thing then set the re-configure flag.
1315 if (container
!= (u32
)-1) {
1316 if (container
>= dev
->maximum_num_containers
)
1318 if ((dev
->fsa_dev
[container
].config_waiting_on
==
1319 le32_to_cpu(*(__le32
*)aifcmd
->data
)) &&
1320 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
))
1321 dev
->fsa_dev
[container
].config_waiting_on
= 0;
1322 } else for (container
= 0;
1323 container
< dev
->maximum_num_containers
; ++container
) {
1324 if ((dev
->fsa_dev
[container
].config_waiting_on
==
1325 le32_to_cpu(*(__le32
*)aifcmd
->data
)) &&
1326 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
))
1327 dev
->fsa_dev
[container
].config_waiting_on
= 0;
1331 case AifCmdJobProgress
:
1333 * These are job progress AIF's. When a Clear is being
1334 * done on a container it is initially created then hidden from
1335 * the OS. When the clear completes we don't get a config
1336 * change so we monitor the job status complete on a clear then
1337 * wait for a container change.
1340 if (((__le32
*)aifcmd
->data
)[1] == cpu_to_le32(AifJobCtrZero
) &&
1341 (((__le32
*)aifcmd
->data
)[6] == ((__le32
*)aifcmd
->data
)[5] ||
1342 ((__le32
*)aifcmd
->data
)[4] == cpu_to_le32(AifJobStsSuccess
))) {
1344 container
< dev
->maximum_num_containers
;
1347 * Stomp on all config sequencing for all
1350 dev
->fsa_dev
[container
].config_waiting_on
=
1351 AifEnContainerChange
;
1352 dev
->fsa_dev
[container
].config_needed
= ADD
;
1353 dev
->fsa_dev
[container
].config_waiting_stamp
=
1357 if (((__le32
*)aifcmd
->data
)[1] == cpu_to_le32(AifJobCtrZero
) &&
1358 ((__le32
*)aifcmd
->data
)[6] == 0 &&
1359 ((__le32
*)aifcmd
->data
)[4] == cpu_to_le32(AifJobStsRunning
)) {
1361 container
< dev
->maximum_num_containers
;
1364 * Stomp on all config sequencing for all
1367 dev
->fsa_dev
[container
].config_waiting_on
=
1368 AifEnContainerChange
;
1369 dev
->fsa_dev
[container
].config_needed
= DELETE
;
1370 dev
->fsa_dev
[container
].config_waiting_stamp
=
1379 if (device_config_needed
== NOTHING
)
1380 for (; container
< dev
->maximum_num_containers
; ++container
) {
1381 if ((dev
->fsa_dev
[container
].config_waiting_on
== 0) &&
1382 (dev
->fsa_dev
[container
].config_needed
!= NOTHING
) &&
1383 time_before(jiffies
, dev
->fsa_dev
[container
].config_waiting_stamp
+ AIF_SNIFF_TIMEOUT
)) {
1384 device_config_needed
=
1385 dev
->fsa_dev
[container
].config_needed
;
1386 dev
->fsa_dev
[container
].config_needed
= NOTHING
;
1387 channel
= CONTAINER_TO_CHANNEL(container
);
1388 id
= CONTAINER_TO_ID(container
);
1389 lun
= CONTAINER_TO_LUN(container
);
1393 if (device_config_needed
== NOTHING
)
1397 * If we decided that a re-configuration needs to be done,
1398 * schedule it here on the way out the door, please close the door
1403 * Find the scsi_device associated with the SCSI address,
1404 * and mark it as changed, invalidating the cache. This deals
1405 * with changes to existing device IDs.
1408 if (!dev
|| !dev
->scsi_host_ptr
)
1411 * force reload of disk info via aac_probe_container
1413 if ((channel
== CONTAINER_CHANNEL
) &&
1414 (device_config_needed
!= NOTHING
)) {
1415 if (dev
->fsa_dev
[container
].valid
== 1)
1416 dev
->fsa_dev
[container
].valid
= 2;
1417 aac_probe_container(dev
, container
);
1419 device
= scsi_device_lookup(dev
->scsi_host_ptr
, channel
, id
, lun
);
1421 switch (device_config_needed
) {
1423 #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE))
1424 scsi_remove_device(device
);
1426 if (scsi_device_online(device
)) {
1427 scsi_device_set_state(device
, SDEV_OFFLINE
);
1428 sdev_printk(KERN_INFO
, device
,
1429 "Device offlined - %s\n",
1430 (channel
== CONTAINER_CHANNEL
) ?
1432 "enclosure services event");
1437 if (!scsi_device_online(device
)) {
1438 sdev_printk(KERN_INFO
, device
,
1439 "Device online - %s\n",
1440 (channel
== CONTAINER_CHANNEL
) ?
1442 "enclosure services event");
1443 scsi_device_set_state(device
, SDEV_RUNNING
);
1447 if ((channel
== CONTAINER_CHANNEL
)
1448 && (!dev
->fsa_dev
[container
].valid
)) {
1449 #if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE))
1450 scsi_remove_device(device
);
1452 if (!scsi_device_online(device
))
1454 scsi_device_set_state(device
, SDEV_OFFLINE
);
1455 sdev_printk(KERN_INFO
, device
,
1456 "Device offlined - %s\n",
1461 scsi_rescan_device(&device
->sdev_gendev
);
1466 scsi_device_put(device
);
1467 device_config_needed
= NOTHING
;
1469 if (device_config_needed
== ADD
)
1470 scsi_add_device(dev
->scsi_host_ptr
, channel
, id
, lun
);
1471 if (channel
== CONTAINER_CHANNEL
) {
1473 device_config_needed
= NOTHING
;
1478 static int _aac_reset_adapter(struct aac_dev
*aac
, int forced
, u8 reset_type
)
1482 struct Scsi_Host
*host
;
1483 struct scsi_device
*dev
;
1484 struct scsi_cmnd
*command
;
1485 struct scsi_cmnd
*command_list
;
1489 int num_of_fibs
= 0;
1493 * - host is locked, unless called by the aacraid thread.
1494 * (a matter of convenience, due to legacy issues surrounding
1495 * eh_host_adapter_reset).
1496 * - in_reset is asserted, so no new i/o is getting to the
1498 * - The card is dead, or will be very shortly ;-/ so no new
1499 * commands are completing in the interrupt service.
1501 host
= aac
->scsi_host_ptr
;
1502 scsi_block_requests(host
);
1503 aac_adapter_disable_int(aac
);
1504 if (aac
->thread
->pid
!= current
->pid
) {
1505 spin_unlock_irq(host
->host_lock
);
1506 kthread_stop(aac
->thread
);
1511 * If a positive health, means in a known DEAD PANIC
1512 * state and the adapter could be reset to `try again'.
1514 bled
= forced
? 0 : aac_adapter_check_health(aac
);
1515 retval
= aac_adapter_restart(aac
, bled
, reset_type
);
1521 * Loop through the fibs, close the synchronous FIBS
1524 num_of_fibs
= aac
->scsi_host_ptr
->can_queue
+ AAC_NUM_MGT_FIB
;
1525 for (index
= 0; index
< num_of_fibs
; index
++) {
1527 struct fib
*fib
= &aac
->fibs
[index
];
1528 __le32 XferState
= fib
->hw_fib_va
->header
.XferState
;
1529 bool is_response_expected
= false;
1531 if (!(XferState
& cpu_to_le32(NoResponseExpected
| Async
)) &&
1532 (XferState
& cpu_to_le32(ResponseExpected
)))
1533 is_response_expected
= true;
1535 if (is_response_expected
1536 || fib
->flags
& FIB_CONTEXT_FLAG_WAIT
) {
1537 unsigned long flagv
;
1538 spin_lock_irqsave(&fib
->event_lock
, flagv
);
1539 up(&fib
->event_wait
);
1540 spin_unlock_irqrestore(&fib
->event_lock
, flagv
);
1545 /* Give some extra time for ioctls to complete. */
1548 index
= aac
->cardtype
;
1551 * Re-initialize the adapter, first free resources, then carefully
1552 * apply the initialization sequence to come back again. Only risk
1553 * is a change in Firmware dropping cache, it is assumed the caller
1554 * will ensure that i/o is queisced and the card is flushed in that
1558 aac_fib_map_free(aac
);
1559 dma_free_coherent(&aac
->pdev
->dev
, aac
->comm_size
, aac
->comm_addr
,
1561 aac
->comm_addr
= NULL
;
1565 kfree(aac
->fsa_dev
);
1566 aac
->fsa_dev
= NULL
;
1568 dmamask
= DMA_BIT_MASK(32);
1569 quirks
= aac_get_driver_ident(index
)->quirks
;
1570 if (quirks
& AAC_QUIRK_31BIT
)
1571 retval
= pci_set_dma_mask(aac
->pdev
, dmamask
);
1572 else if (!(quirks
& AAC_QUIRK_SRC
))
1573 retval
= pci_set_dma_mask(aac
->pdev
, dmamask
);
1575 retval
= pci_set_consistent_dma_mask(aac
->pdev
, dmamask
);
1577 if (quirks
& AAC_QUIRK_31BIT
&& !retval
) {
1578 dmamask
= DMA_BIT_MASK(31);
1579 retval
= pci_set_consistent_dma_mask(aac
->pdev
, dmamask
);
1585 if ((retval
= (*(aac_get_driver_ident(index
)->init
))(aac
)))
1589 aac
->thread
= kthread_run(aac_command_thread
, aac
, "%s",
1591 if (IS_ERR(aac
->thread
)) {
1592 retval
= PTR_ERR(aac
->thread
);
1596 (void)aac_get_adapter_info(aac
);
1597 if ((quirks
& AAC_QUIRK_34SG
) && (host
->sg_tablesize
> 34)) {
1598 host
->sg_tablesize
= 34;
1599 host
->max_sectors
= (host
->sg_tablesize
* 8) + 112;
1601 if ((quirks
& AAC_QUIRK_17SG
) && (host
->sg_tablesize
> 17)) {
1602 host
->sg_tablesize
= 17;
1603 host
->max_sectors
= (host
->sg_tablesize
* 8) + 112;
1605 aac_get_config_status(aac
, 1);
1606 aac_get_containers(aac
);
1608 * This is where the assumption that the Adapter is quiesced
1611 command_list
= NULL
;
1612 __shost_for_each_device(dev
, host
) {
1613 unsigned long flags
;
1614 spin_lock_irqsave(&dev
->list_lock
, flags
);
1615 list_for_each_entry(command
, &dev
->cmd_list
, list
)
1616 if (command
->SCp
.phase
== AAC_OWNER_FIRMWARE
) {
1617 command
->SCp
.buffer
= (struct scatterlist
*)command_list
;
1618 command_list
= command
;
1620 spin_unlock_irqrestore(&dev
->list_lock
, flags
);
1622 while ((command
= command_list
)) {
1623 command_list
= (struct scsi_cmnd
*)command
->SCp
.buffer
;
1624 command
->SCp
.buffer
= NULL
;
1625 command
->result
= DID_OK
<< 16
1626 | COMMAND_COMPLETE
<< 8
1627 | SAM_STAT_TASK_SET_FULL
;
1628 command
->SCp
.phase
= AAC_OWNER_ERROR_HANDLER
;
1629 command
->scsi_done(command
);
1632 * Any Device that was already marked offline needs to be cleaned up
1634 __shost_for_each_device(dev
, host
) {
1635 if (!scsi_device_online(dev
)) {
1636 sdev_printk(KERN_INFO
, dev
, "Removing offline device\n");
1637 scsi_remove_device(dev
);
1638 scsi_device_put(dev
);
1645 scsi_unblock_requests(host
);
1647 * Issue bus rescan to catch any configuration that might have
1651 dev_info(&aac
->pdev
->dev
, "Issuing bus rescan\n");
1652 scsi_scan_host(host
);
1655 spin_lock_irq(host
->host_lock
);
1660 int aac_reset_adapter(struct aac_dev
*aac
, int forced
, u8 reset_type
)
1662 unsigned long flagv
= 0;
1664 struct Scsi_Host
* host
;
1667 if (spin_trylock_irqsave(&aac
->fib_lock
, flagv
) == 0)
1670 if (aac
->in_reset
) {
1671 spin_unlock_irqrestore(&aac
->fib_lock
, flagv
);
1675 spin_unlock_irqrestore(&aac
->fib_lock
, flagv
);
1678 * Wait for all commands to complete to this specific
1679 * target (block maximum 60 seconds). Although not necessary,
1680 * it does make us a good storage citizen.
1682 host
= aac
->scsi_host_ptr
;
1683 scsi_block_requests(host
);
1684 if (forced
< 2) for (retval
= 60; retval
; --retval
) {
1685 struct scsi_device
* dev
;
1686 struct scsi_cmnd
* command
;
1689 __shost_for_each_device(dev
, host
) {
1690 spin_lock_irqsave(&dev
->list_lock
, flagv
);
1691 list_for_each_entry(command
, &dev
->cmd_list
, list
) {
1692 if (command
->SCp
.phase
== AAC_OWNER_FIRMWARE
) {
1697 spin_unlock_irqrestore(&dev
->list_lock
, flagv
);
1703 * We can exit If all the commands are complete
1710 /* Quiesce build, flush cache, write through mode */
1712 aac_send_shutdown(aac
);
1713 spin_lock_irqsave(host
->host_lock
, flagv
);
1714 bled
= forced
? forced
:
1715 (aac_check_reset
!= 0 && aac_check_reset
!= 1);
1716 retval
= _aac_reset_adapter(aac
, bled
, reset_type
);
1717 spin_unlock_irqrestore(host
->host_lock
, flagv
);
1719 if ((forced
< 2) && (retval
== -ENODEV
)) {
1720 /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */
1721 struct fib
* fibctx
= aac_fib_alloc(aac
);
1723 struct aac_pause
*cmd
;
1726 aac_fib_init(fibctx
);
1728 cmd
= (struct aac_pause
*) fib_data(fibctx
);
1730 cmd
->command
= cpu_to_le32(VM_ContainerConfig
);
1731 cmd
->type
= cpu_to_le32(CT_PAUSE_IO
);
1732 cmd
->timeout
= cpu_to_le32(1);
1733 cmd
->min
= cpu_to_le32(1);
1734 cmd
->noRescan
= cpu_to_le32(1);
1735 cmd
->count
= cpu_to_le32(0);
1737 status
= aac_fib_send(ContainerCommand
,
1739 sizeof(struct aac_pause
),
1741 -2 /* Timeout silently */, 1,
1745 aac_fib_complete(fibctx
);
1746 /* FIB should be freed only after getting
1747 * the response from the F/W */
1748 if (status
!= -ERESTARTSYS
)
1749 aac_fib_free(fibctx
);
1756 int aac_check_health(struct aac_dev
* aac
)
1759 unsigned long time_now
, flagv
= 0;
1760 struct list_head
* entry
;
1762 /* Extending the scope of fib_lock slightly to protect aac->in_reset */
1763 if (spin_trylock_irqsave(&aac
->fib_lock
, flagv
) == 0)
1766 if (aac
->in_reset
|| !(BlinkLED
= aac_adapter_check_health(aac
))) {
1767 spin_unlock_irqrestore(&aac
->fib_lock
, flagv
);
1774 * aac_aifcmd.command = AifCmdEventNotify = 1
1775 * aac_aifcmd.seqnum = 0xFFFFFFFF
1776 * aac_aifcmd.data[0] = AifEnExpEvent = 23
1777 * aac_aifcmd.data[1] = AifExeFirmwarePanic = 3
1778 * aac.aifcmd.data[2] = AifHighPriority = 3
1779 * aac.aifcmd.data[3] = BlinkLED
1782 time_now
= jiffies
/HZ
;
1783 entry
= aac
->fib_list
.next
;
1786 * For each Context that is on the
1787 * fibctxList, make a copy of the
1788 * fib, and then set the event to wake up the
1789 * thread that is waiting for it.
1791 while (entry
!= &aac
->fib_list
) {
1793 * Extract the fibctx
1795 struct aac_fib_context
*fibctx
= list_entry(entry
, struct aac_fib_context
, next
);
1796 struct hw_fib
* hw_fib
;
1799 * Check if the queue is getting
1802 if (fibctx
->count
> 20) {
1804 * It's *not* jiffies folks,
1805 * but jiffies / HZ, so do not
1808 u32 time_last
= fibctx
->jiffies
;
1810 * Has it been > 2 minutes
1811 * since the last read off
1814 if ((time_now
- time_last
) > aif_timeout
) {
1815 entry
= entry
->next
;
1816 aac_close_fib_context(aac
, fibctx
);
1821 * Warning: no sleep allowed while
1824 hw_fib
= kzalloc(sizeof(struct hw_fib
), GFP_ATOMIC
);
1825 fib
= kzalloc(sizeof(struct fib
), GFP_ATOMIC
);
1826 if (fib
&& hw_fib
) {
1827 struct aac_aifcmd
* aif
;
1829 fib
->hw_fib_va
= hw_fib
;
1832 fib
->type
= FSAFS_NTC_FIB_CONTEXT
;
1833 fib
->size
= sizeof (struct fib
);
1834 fib
->data
= hw_fib
->data
;
1835 aif
= (struct aac_aifcmd
*)hw_fib
->data
;
1836 aif
->command
= cpu_to_le32(AifCmdEventNotify
);
1837 aif
->seqnum
= cpu_to_le32(0xFFFFFFFF);
1838 ((__le32
*)aif
->data
)[0] = cpu_to_le32(AifEnExpEvent
);
1839 ((__le32
*)aif
->data
)[1] = cpu_to_le32(AifExeFirmwarePanic
);
1840 ((__le32
*)aif
->data
)[2] = cpu_to_le32(AifHighPriority
);
1841 ((__le32
*)aif
->data
)[3] = cpu_to_le32(BlinkLED
);
1844 * Put the FIB onto the
1847 list_add_tail(&fib
->fiblink
, &fibctx
->fib_list
);
1850 * Set the event to wake up the
1851 * thread that will waiting.
1853 up(&fibctx
->wait_sem
);
1855 printk(KERN_WARNING
"aifd: didn't allocate NewFib.\n");
1859 entry
= entry
->next
;
1862 spin_unlock_irqrestore(&aac
->fib_lock
, flagv
);
1865 printk(KERN_ERR
"%s: Host adapter is dead (or got a PCI error) %d\n",
1866 aac
->name
, BlinkLED
);
1870 printk(KERN_ERR
"%s: Host adapter BLINK LED 0x%x\n", aac
->name
, BlinkLED
);
1878 static void aac_resolve_luns(struct aac_dev
*dev
)
1880 int bus
, target
, channel
;
1881 struct scsi_device
*sdev
;
1885 for (bus
= 0; bus
< AAC_MAX_BUSES
; bus
++) {
1886 for (target
= 0; target
< AAC_MAX_TARGETS
; target
++) {
1888 if (bus
== CONTAINER_CHANNEL
)
1889 channel
= CONTAINER_CHANNEL
;
1891 channel
= aac_phys_to_logical(bus
);
1893 devtype
= dev
->hba_map
[bus
][target
].devtype
;
1894 new_devtype
= dev
->hba_map
[bus
][target
].new_devtype
;
1896 sdev
= scsi_device_lookup(dev
->scsi_host_ptr
, channel
,
1899 if (!sdev
&& new_devtype
)
1900 scsi_add_device(dev
->scsi_host_ptr
, channel
,
1902 else if (sdev
&& new_devtype
!= devtype
)
1903 scsi_remove_device(sdev
);
1904 else if (sdev
&& new_devtype
== devtype
)
1905 scsi_rescan_device(&sdev
->sdev_gendev
);
1908 scsi_device_put(sdev
);
1910 dev
->hba_map
[bus
][target
].devtype
= new_devtype
;
1916 * aac_handle_sa_aif Handle a message from the firmware
1917 * @dev: Which adapter this fib is from
1918 * @fibptr: Pointer to fibptr from adapter
1920 * This routine handles a driver notify fib from the adapter and
1921 * dispatches it to the appropriate routine for handling.
1923 static void aac_handle_sa_aif(struct aac_dev
*dev
, struct fib
*fibptr
)
1925 int i
, bus
, target
, container
, rcode
= 0;
1928 struct scsi_device
*sdev
;
1930 if (fibptr
->hbacmd_size
& SA_AIF_HOTPLUG
)
1931 events
= SA_AIF_HOTPLUG
;
1932 else if (fibptr
->hbacmd_size
& SA_AIF_HARDWARE
)
1933 events
= SA_AIF_HARDWARE
;
1934 else if (fibptr
->hbacmd_size
& SA_AIF_PDEV_CHANGE
)
1935 events
= SA_AIF_PDEV_CHANGE
;
1936 else if (fibptr
->hbacmd_size
& SA_AIF_LDEV_CHANGE
)
1937 events
= SA_AIF_LDEV_CHANGE
;
1938 else if (fibptr
->hbacmd_size
& SA_AIF_BPSTAT_CHANGE
)
1939 events
= SA_AIF_BPSTAT_CHANGE
;
1940 else if (fibptr
->hbacmd_size
& SA_AIF_BPCFG_CHANGE
)
1941 events
= SA_AIF_BPCFG_CHANGE
;
1944 case SA_AIF_HOTPLUG
:
1945 case SA_AIF_HARDWARE
:
1946 case SA_AIF_PDEV_CHANGE
:
1947 case SA_AIF_LDEV_CHANGE
:
1948 case SA_AIF_BPCFG_CHANGE
:
1950 fib
= aac_fib_alloc(dev
);
1952 pr_err("aac_handle_sa_aif: out of memory\n");
1955 for (bus
= 0; bus
< AAC_MAX_BUSES
; bus
++)
1956 for (target
= 0; target
< AAC_MAX_TARGETS
; target
++)
1957 dev
->hba_map
[bus
][target
].new_devtype
= 0;
1959 rcode
= aac_report_phys_luns(dev
, fib
, AAC_RESCAN
);
1961 if (rcode
!= -ERESTARTSYS
)
1964 aac_resolve_luns(dev
);
1966 if (events
== SA_AIF_LDEV_CHANGE
||
1967 events
== SA_AIF_BPCFG_CHANGE
) {
1968 aac_get_containers(dev
);
1969 for (container
= 0; container
<
1970 dev
->maximum_num_containers
; ++container
) {
1971 sdev
= scsi_device_lookup(dev
->scsi_host_ptr
,
1974 if (dev
->fsa_dev
[container
].valid
&& !sdev
) {
1975 scsi_add_device(dev
->scsi_host_ptr
,
1978 } else if (!dev
->fsa_dev
[container
].valid
&&
1980 scsi_remove_device(sdev
);
1981 scsi_device_put(sdev
);
1983 scsi_rescan_device(&sdev
->sdev_gendev
);
1984 scsi_device_put(sdev
);
1990 case SA_AIF_BPSTAT_CHANGE
:
1991 /* currently do nothing */
1995 for (i
= 1; i
<= 10; ++i
) {
1996 events
= src_readl(dev
, MUnit
.IDR
);
1997 if (events
& (1<<23)) {
1998 pr_warn(" AIF not cleared by firmware - %d/%d)\n",
2005 static int get_fib_count(struct aac_dev
*dev
)
2007 unsigned int num
= 0;
2008 struct list_head
*entry
;
2009 unsigned long flagv
;
2012 * Warning: no sleep allowed while
2013 * holding spinlock. We take the estimate
2014 * and pre-allocate a set of fibs outside the
2017 num
= le32_to_cpu(dev
->init
->r7
.adapter_fibs_size
)
2018 / sizeof(struct hw_fib
); /* some extra */
2019 spin_lock_irqsave(&dev
->fib_lock
, flagv
);
2020 entry
= dev
->fib_list
.next
;
2021 while (entry
!= &dev
->fib_list
) {
2022 entry
= entry
->next
;
2025 spin_unlock_irqrestore(&dev
->fib_lock
, flagv
);
2030 static int fillup_pools(struct aac_dev
*dev
, struct hw_fib
**hw_fib_pool
,
2031 struct fib
**fib_pool
,
2034 struct hw_fib
**hw_fib_p
;
2037 hw_fib_p
= hw_fib_pool
;
2039 while (hw_fib_p
< &hw_fib_pool
[num
]) {
2040 *(hw_fib_p
) = kmalloc(sizeof(struct hw_fib
), GFP_KERNEL
);
2041 if (!(*(hw_fib_p
++))) {
2046 *(fib_p
) = kmalloc(sizeof(struct fib
), GFP_KERNEL
);
2047 if (!(*(fib_p
++))) {
2048 kfree(*(--hw_fib_p
));
2054 * Get the actual number of allocated fibs
2056 num
= hw_fib_p
- hw_fib_pool
;
2060 static void wakeup_fibctx_threads(struct aac_dev
*dev
,
2061 struct hw_fib
**hw_fib_pool
,
2062 struct fib
**fib_pool
,
2064 struct hw_fib
*hw_fib
,
2067 unsigned long flagv
;
2068 struct list_head
*entry
;
2069 struct hw_fib
**hw_fib_p
;
2071 u32 time_now
, time_last
;
2072 struct hw_fib
*hw_newfib
;
2074 struct aac_fib_context
*fibctx
;
2076 time_now
= jiffies
/HZ
;
2077 spin_lock_irqsave(&dev
->fib_lock
, flagv
);
2078 entry
= dev
->fib_list
.next
;
2080 * For each Context that is on the
2081 * fibctxList, make a copy of the
2082 * fib, and then set the event to wake up the
2083 * thread that is waiting for it.
2086 hw_fib_p
= hw_fib_pool
;
2088 while (entry
!= &dev
->fib_list
) {
2090 * Extract the fibctx
2092 fibctx
= list_entry(entry
, struct aac_fib_context
,
2095 * Check if the queue is getting
2098 if (fibctx
->count
> 20) {
2100 * It's *not* jiffies folks,
2101 * but jiffies / HZ so do not
2104 time_last
= fibctx
->jiffies
;
2106 * Has it been > 2 minutes
2107 * since the last read off
2110 if ((time_now
- time_last
) > aif_timeout
) {
2111 entry
= entry
->next
;
2112 aac_close_fib_context(dev
, fibctx
);
2117 * Warning: no sleep allowed while
2120 if (hw_fib_p
>= &hw_fib_pool
[num
]) {
2121 pr_warn("aifd: didn't allocate NewFib\n");
2122 entry
= entry
->next
;
2126 hw_newfib
= *hw_fib_p
;
2127 *(hw_fib_p
++) = NULL
;
2131 * Make the copy of the FIB
2133 memcpy(hw_newfib
, hw_fib
, sizeof(struct hw_fib
));
2134 memcpy(newfib
, fib
, sizeof(struct fib
));
2135 newfib
->hw_fib_va
= hw_newfib
;
2137 * Put the FIB onto the
2140 list_add_tail(&newfib
->fiblink
, &fibctx
->fib_list
);
2143 * Set the event to wake up the
2144 * thread that is waiting.
2146 up(&fibctx
->wait_sem
);
2148 entry
= entry
->next
;
2151 * Set the status of this FIB
2153 *(__le32
*)hw_fib
->data
= cpu_to_le32(ST_OK
);
2154 aac_fib_adapter_complete(fib
, sizeof(u32
));
2155 spin_unlock_irqrestore(&dev
->fib_lock
, flagv
);
2159 static void aac_process_events(struct aac_dev
*dev
)
2161 struct hw_fib
*hw_fib
;
2163 unsigned long flags
;
2166 t_lock
= dev
->queues
->queue
[HostNormCmdQueue
].lock
;
2167 spin_lock_irqsave(t_lock
, flags
);
2169 while (!list_empty(&(dev
->queues
->queue
[HostNormCmdQueue
].cmdq
))) {
2170 struct list_head
*entry
;
2171 struct aac_aifcmd
*aifcmd
;
2173 struct hw_fib
**hw_fib_pool
, **hw_fib_p
;
2174 struct fib
**fib_pool
, **fib_p
;
2176 set_current_state(TASK_RUNNING
);
2178 entry
= dev
->queues
->queue
[HostNormCmdQueue
].cmdq
.next
;
2181 t_lock
= dev
->queues
->queue
[HostNormCmdQueue
].lock
;
2182 spin_unlock_irqrestore(t_lock
, flags
);
2184 fib
= list_entry(entry
, struct fib
, fiblink
);
2185 hw_fib
= fib
->hw_fib_va
;
2186 if (dev
->sa_firmware
) {
2188 aac_handle_sa_aif(dev
, fib
);
2189 aac_fib_adapter_complete(fib
, (u16
)sizeof(u32
));
2193 * We will process the FIB here or pass it to a
2194 * worker thread that is TBD. We Really can't
2195 * do anything at this point since we don't have
2196 * anything defined for this thread to do.
2198 memset(fib
, 0, sizeof(struct fib
));
2199 fib
->type
= FSAFS_NTC_FIB_CONTEXT
;
2200 fib
->size
= sizeof(struct fib
);
2201 fib
->hw_fib_va
= hw_fib
;
2202 fib
->data
= hw_fib
->data
;
2205 * We only handle AifRequest fibs from the adapter.
2208 aifcmd
= (struct aac_aifcmd
*) hw_fib
->data
;
2209 if (aifcmd
->command
== cpu_to_le32(AifCmdDriverNotify
)) {
2210 /* Handle Driver Notify Events */
2211 aac_handle_aif(dev
, fib
);
2212 *(__le32
*)hw_fib
->data
= cpu_to_le32(ST_OK
);
2213 aac_fib_adapter_complete(fib
, (u16
)sizeof(u32
));
2217 * The u32 here is important and intended. We are using
2218 * 32bit wrapping time to fit the adapter field
2222 if (aifcmd
->command
== cpu_to_le32(AifCmdEventNotify
)
2223 || aifcmd
->command
== cpu_to_le32(AifCmdJobProgress
)) {
2224 aac_handle_aif(dev
, fib
);
2228 * get number of fibs to process
2230 num
= get_fib_count(dev
);
2234 hw_fib_pool
= kmalloc_array(num
, sizeof(struct hw_fib
*),
2239 fib_pool
= kmalloc_array(num
, sizeof(struct fib
*), GFP_KERNEL
);
2241 goto free_hw_fib_pool
;
2244 * Fill up fib pointer pools with actual fibs
2247 num
= fillup_pools(dev
, hw_fib_pool
, fib_pool
, num
);
2252 * wakeup the thread that is waiting for
2253 * the response from fw (ioctl)
2255 wakeup_fibctx_threads(dev
, hw_fib_pool
, fib_pool
,
2259 /* Free up the remaining resources */
2260 hw_fib_p
= hw_fib_pool
;
2262 while (hw_fib_p
< &hw_fib_pool
[num
]) {
2273 t_lock
= dev
->queues
->queue
[HostNormCmdQueue
].lock
;
2274 spin_lock_irqsave(t_lock
, flags
);
2277 * There are no more AIF's
2279 t_lock
= dev
->queues
->queue
[HostNormCmdQueue
].lock
;
2280 spin_unlock_irqrestore(t_lock
, flags
);
2283 static int aac_send_wellness_command(struct aac_dev
*dev
, char *wellness_str
,
2286 struct aac_srb
*srbcmd
;
2287 struct sgmap64
*sg64
;
2294 fibptr
= aac_fib_alloc(dev
);
2298 dma_buf
= dma_alloc_coherent(&dev
->pdev
->dev
, datasize
, &addr
,
2303 aac_fib_init(fibptr
);
2305 vbus
= (u32
)le16_to_cpu(dev
->supplement_adapter_info
.virt_device_bus
);
2306 vid
= (u32
)le16_to_cpu(dev
->supplement_adapter_info
.virt_device_target
);
2308 srbcmd
= (struct aac_srb
*)fib_data(fibptr
);
2310 srbcmd
->function
= cpu_to_le32(SRBF_ExecuteScsi
);
2311 srbcmd
->channel
= cpu_to_le32(vbus
);
2312 srbcmd
->id
= cpu_to_le32(vid
);
2314 srbcmd
->flags
= cpu_to_le32(SRB_DataOut
);
2315 srbcmd
->timeout
= cpu_to_le32(10);
2316 srbcmd
->retry_limit
= 0;
2317 srbcmd
->cdb_size
= cpu_to_le32(12);
2318 srbcmd
->count
= cpu_to_le32(datasize
);
2320 memset(srbcmd
->cdb
, 0, sizeof(srbcmd
->cdb
));
2321 srbcmd
->cdb
[0] = BMIC_OUT
;
2322 srbcmd
->cdb
[6] = WRITE_HOST_WELLNESS
;
2323 memcpy(dma_buf
, (char *)wellness_str
, datasize
);
2325 sg64
= (struct sgmap64
*)&srbcmd
->sg
;
2326 sg64
->count
= cpu_to_le32(1);
2327 sg64
->sg
[0].addr
[1] = cpu_to_le32((u32
)(((addr
) >> 16) >> 16));
2328 sg64
->sg
[0].addr
[0] = cpu_to_le32((u32
)(addr
& 0xffffffff));
2329 sg64
->sg
[0].count
= cpu_to_le32(datasize
);
2331 ret
= aac_fib_send(ScsiPortCommand64
, fibptr
, sizeof(struct aac_srb
),
2332 FsaNormal
, 1, 1, NULL
, NULL
);
2334 dma_free_coherent(&dev
->pdev
->dev
, datasize
, dma_buf
, addr
);
2337 * Do not set XferState to zero unless
2338 * receives a response from F/W
2341 aac_fib_complete(fibptr
);
2344 * FIB should be freed only after
2345 * getting the response from the F/W
2347 if (ret
!= -ERESTARTSYS
)
2353 aac_fib_free(fibptr
);
2357 int aac_send_safw_hostttime(struct aac_dev
*dev
, struct timespec64
*now
)
2360 char wellness_str
[] = "<HW>TD\010\0\0\0\0\0\0\0\0\0DW\0\0ZZ";
2361 u32 datasize
= sizeof(wellness_str
);
2362 time64_t local_time
;
2365 if (!dev
->sa_firmware
)
2368 local_time
= (now
->tv_sec
- (sys_tz
.tz_minuteswest
* 60));
2369 time64_to_tm(local_time
, 0, &cur_tm
);
2371 cur_tm
.tm_year
+= 1900;
2372 wellness_str
[8] = bin2bcd(cur_tm
.tm_hour
);
2373 wellness_str
[9] = bin2bcd(cur_tm
.tm_min
);
2374 wellness_str
[10] = bin2bcd(cur_tm
.tm_sec
);
2375 wellness_str
[12] = bin2bcd(cur_tm
.tm_mon
);
2376 wellness_str
[13] = bin2bcd(cur_tm
.tm_mday
);
2377 wellness_str
[14] = bin2bcd(cur_tm
.tm_year
/ 100);
2378 wellness_str
[15] = bin2bcd(cur_tm
.tm_year
% 100);
2380 ret
= aac_send_wellness_command(dev
, wellness_str
, datasize
);
2386 int aac_send_hosttime(struct aac_dev
*dev
, struct timespec64
*now
)
2392 fibptr
= aac_fib_alloc(dev
);
2396 aac_fib_init(fibptr
);
2397 info
= (__le32
*)fib_data(fibptr
);
2398 *info
= cpu_to_le32(now
->tv_sec
); /* overflow in y2106 */
2399 ret
= aac_fib_send(SendHostTime
, fibptr
, sizeof(*info
), FsaNormal
,
2403 * Do not set XferState to zero unless
2404 * receives a response from F/W
2407 aac_fib_complete(fibptr
);
2410 * FIB should be freed only after
2411 * getting the response from the F/W
2413 if (ret
!= -ERESTARTSYS
)
2414 aac_fib_free(fibptr
);
2421 * aac_command_thread - command processing thread
2422 * @dev: Adapter to monitor
2424 * Waits on the commandready event in it's queue. When the event gets set
2425 * it will pull FIBs off it's queue. It will continue to pull FIBs off
2426 * until the queue is empty. When the queue is empty it will wait for
2430 int aac_command_thread(void *data
)
2432 struct aac_dev
*dev
= data
;
2433 DECLARE_WAITQUEUE(wait
, current
);
2434 unsigned long next_jiffies
= jiffies
+ HZ
;
2435 unsigned long next_check_jiffies
= next_jiffies
;
2436 long difference
= HZ
;
2439 * We can only have one thread per adapter for AIF's.
2441 if (dev
->aif_thread
)
2445 * Let the DPC know it has a place to send the AIF's to.
2447 dev
->aif_thread
= 1;
2448 add_wait_queue(&dev
->queues
->queue
[HostNormCmdQueue
].cmdready
, &wait
);
2449 set_current_state(TASK_INTERRUPTIBLE
);
2450 dprintk ((KERN_INFO
"aac_command_thread start\n"));
2453 aac_process_events(dev
);
2456 * Background activity
2458 if ((time_before(next_check_jiffies
,next_jiffies
))
2459 && ((difference
= next_check_jiffies
- jiffies
) <= 0)) {
2460 next_check_jiffies
= next_jiffies
;
2461 if (aac_adapter_check_health(dev
) == 0) {
2462 difference
= ((long)(unsigned)check_interval
)
2464 next_check_jiffies
= jiffies
+ difference
;
2465 } else if (!dev
->queues
)
2468 if (!time_before(next_check_jiffies
,next_jiffies
)
2469 && ((difference
= next_jiffies
- jiffies
) <= 0)) {
2470 struct timespec64 now
;
2473 /* Don't even try to talk to adapter if its sick */
2474 ret
= aac_adapter_check_health(dev
);
2475 if (ret
|| !dev
->queues
)
2477 next_check_jiffies
= jiffies
2478 + ((long)(unsigned)check_interval
)
2480 ktime_get_real_ts64(&now
);
2482 /* Synchronize our watches */
2483 if (((NSEC_PER_SEC
- (NSEC_PER_SEC
/ HZ
)) > now
.tv_nsec
)
2484 && (now
.tv_nsec
> (NSEC_PER_SEC
/ HZ
)))
2485 difference
= HZ
+ HZ
/ 2 -
2486 now
.tv_nsec
/ (NSEC_PER_SEC
/ HZ
);
2488 if (now
.tv_nsec
> NSEC_PER_SEC
/ 2)
2491 if (dev
->sa_firmware
)
2493 aac_send_safw_hostttime(dev
, &now
);
2495 ret
= aac_send_hosttime(dev
, &now
);
2497 difference
= (long)(unsigned)update_interval
*HZ
;
2499 next_jiffies
= jiffies
+ difference
;
2500 if (time_before(next_check_jiffies
,next_jiffies
))
2501 difference
= next_check_jiffies
- jiffies
;
2503 if (difference
<= 0)
2505 set_current_state(TASK_INTERRUPTIBLE
);
2507 if (kthread_should_stop())
2511 * we probably want usleep_range() here instead of the
2512 * jiffies computation
2514 schedule_timeout(difference
);
2516 if (kthread_should_stop())
2520 remove_wait_queue(&dev
->queues
->queue
[HostNormCmdQueue
].cmdready
, &wait
);
2521 dev
->aif_thread
= 0;
2525 int aac_acquire_irq(struct aac_dev
*dev
)
2531 if (!dev
->sync_mode
&& dev
->msi_enabled
&& dev
->max_msix
> 1) {
2532 for (i
= 0; i
< dev
->max_msix
; i
++) {
2533 dev
->aac_msix
[i
].vector_no
= i
;
2534 dev
->aac_msix
[i
].dev
= dev
;
2535 if (request_irq(pci_irq_vector(dev
->pdev
, i
),
2536 dev
->a_ops
.adapter_intr
,
2537 0, "aacraid", &(dev
->aac_msix
[i
]))) {
2538 printk(KERN_ERR
"%s%d: Failed to register IRQ for vector %d.\n",
2539 dev
->name
, dev
->id
, i
);
2540 for (j
= 0 ; j
< i
; j
++)
2541 free_irq(pci_irq_vector(dev
->pdev
, j
),
2542 &(dev
->aac_msix
[j
]));
2543 pci_disable_msix(dev
->pdev
);
2548 dev
->aac_msix
[0].vector_no
= 0;
2549 dev
->aac_msix
[0].dev
= dev
;
2551 if (request_irq(dev
->pdev
->irq
, dev
->a_ops
.adapter_intr
,
2552 IRQF_SHARED
, "aacraid",
2553 &(dev
->aac_msix
[0])) < 0) {
2555 pci_disable_msi(dev
->pdev
);
2556 printk(KERN_ERR
"%s%d: Interrupt unavailable.\n",
2557 dev
->name
, dev
->id
);
2564 void aac_free_irq(struct aac_dev
*dev
)
2569 cpu
= cpumask_first(cpu_online_mask
);
2570 if (aac_is_src(dev
)) {
2571 if (dev
->max_msix
> 1) {
2572 for (i
= 0; i
< dev
->max_msix
; i
++)
2573 free_irq(pci_irq_vector(dev
->pdev
, i
),
2574 &(dev
->aac_msix
[i
]));
2576 free_irq(dev
->pdev
->irq
, &(dev
->aac_msix
[0]));
2579 free_irq(dev
->pdev
->irq
, dev
);
2582 pci_disable_msi(dev
->pdev
);
2583 else if (dev
->max_msix
> 1)
2584 pci_disable_msix(dev
->pdev
);