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path: root/drivers/scsi/aacraid/dpcsup.c
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Diffstat (limited to 'drivers/scsi/aacraid/dpcsup.c')
-rw-r--r--drivers/scsi/aacraid/dpcsup.c131
1 files changed, 110 insertions, 21 deletions
diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index d1163ded132..d81b2810f0f 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -1,11 +1,12 @@
/*
* Adaptec AAC series RAID controller driver
- * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
+ * (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
- * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -36,7 +37,7 @@
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
-#include <asm/semaphore.h>
+#include <linux/semaphore.h>
#include "aacraid.h"
@@ -57,9 +58,9 @@ unsigned int aac_response_normal(struct aac_queue * q)
struct hw_fib * hwfib;
struct fib * fib;
int consumed = 0;
- unsigned long flags;
+ unsigned long flags, mflags;
- spin_lock_irqsave(q->lock, flags);
+ spin_lock_irqsave(q->lock, flags);
/*
* Keep pulling response QEs off the response queue and waking
* up the waiters until there are no more QEs. We then return
@@ -100,6 +101,7 @@ unsigned int aac_response_normal(struct aac_queue * q)
*/
*(__le32 *)hwfib->data = cpu_to_le32(ST_OK);
hwfib->header.XferState |= cpu_to_le32(AdapterProcessed);
+ fib->flags |= FIB_CONTEXT_FLAG_FASTRESP;
}
FIB_COUNTER_INCREMENT(aac_config.FibRecved);
@@ -120,17 +122,26 @@ unsigned int aac_response_normal(struct aac_queue * q)
* NOTE: we cannot touch the fib after this
* call, because it may have been deallocated.
*/
- fib->flags = 0;
+ fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
fib->callback(fib->callback_data, fib);
} else {
unsigned long flagv;
spin_lock_irqsave(&fib->event_lock, flagv);
- if (!fib->done)
+ if (!fib->done) {
fib->done = 1;
- up(&fib->event_wait);
+ up(&fib->event_wait);
+ }
spin_unlock_irqrestore(&fib->event_lock, flagv);
+
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ dev->management_fib_count--;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
if (fib->done == 2) {
+ spin_lock_irqsave(&fib->event_lock, flagv);
+ fib->done = 0;
+ spin_unlock_irqrestore(&fib->event_lock, flagv);
aac_fib_complete(fib);
aac_fib_free(fib);
}
@@ -219,6 +230,48 @@ unsigned int aac_command_normal(struct aac_queue *q)
return 0;
}
+/*
+ *
+ * aac_aif_callback
+ * @context: the context set in the fib - here it is scsi cmd
+ * @fibptr: pointer to the fib
+ *
+ * Handles the AIFs - new method (SRC)
+ *
+ */
+
+static void aac_aif_callback(void *context, struct fib * fibptr)
+{
+ struct fib *fibctx;
+ struct aac_dev *dev;
+ struct aac_aifcmd *cmd;
+ int status;
+
+ fibctx = (struct fib *)context;
+ BUG_ON(fibptr == NULL);
+ dev = fibptr->dev;
+
+ if (fibptr->hw_fib_va->header.XferState &
+ cpu_to_le32(NoMoreAifDataAvailable)) {
+ aac_fib_complete(fibptr);
+ aac_fib_free(fibptr);
+ return;
+ }
+
+ aac_intr_normal(dev, 0, 1, 0, fibptr->hw_fib_va);
+
+ aac_fib_init(fibctx);
+ cmd = (struct aac_aifcmd *) fib_data(fibctx);
+ cmd->command = cpu_to_le32(AifReqEvent);
+
+ status = aac_fib_send(AifRequest,
+ fibctx,
+ sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
+ FsaNormal,
+ 0, 1,
+ (fib_callback)aac_aif_callback, fibctx);
+}
+
/**
* aac_intr_normal - Handle command replies
@@ -229,18 +282,17 @@ unsigned int aac_command_normal(struct aac_queue *q)
* know there is a response on our normal priority queue. We will pull off
* all QE there are and wake up all the waiters before exiting.
*/
-
-unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
+unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
+ int isAif, int isFastResponse, struct hw_fib *aif_fib)
{
+ unsigned long mflags;
dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index));
- if ((index & 0x00000002L)) {
+ if (isAif == 1) { /* AIF - common */
struct hw_fib * hw_fib;
struct fib * fib;
struct aac_queue *q = &dev->queues->queue[HostNormCmdQueue];
unsigned long flags;
- if (index == 0xFFFFFFFEL) /* Special Case */
- return 0; /* Do nothing */
/*
* Allocate a FIB. For non queued stuff we can just use
* the stack so we are happy. We need a fib object in order to
@@ -253,8 +305,13 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
kfree (fib);
return 1;
}
- memcpy(hw_fib, (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) +
- (index & ~0x00000002L)), sizeof(struct hw_fib));
+ if (aif_fib != NULL) {
+ memcpy(hw_fib, aif_fib, sizeof(struct hw_fib));
+ } else {
+ memcpy(hw_fib,
+ (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) +
+ index), sizeof(struct hw_fib));
+ }
INIT_LIST_HEAD(&fib->fiblink);
fib->type = FSAFS_NTC_FIB_CONTEXT;
fib->size = sizeof(struct fib);
@@ -267,9 +324,26 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
wake_up_interruptible(&q->cmdready);
spin_unlock_irqrestore(q->lock, flags);
return 1;
+ } else if (isAif == 2) { /* AIF - new (SRC) */
+ struct fib *fibctx;
+ struct aac_aifcmd *cmd;
+
+ fibctx = aac_fib_alloc(dev);
+ if (!fibctx)
+ return 1;
+ aac_fib_init(fibctx);
+
+ cmd = (struct aac_aifcmd *) fib_data(fibctx);
+ cmd->command = cpu_to_le32(AifReqEvent);
+
+ return aac_fib_send(AifRequest,
+ fibctx,
+ sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
+ FsaNormal,
+ 0, 1,
+ (fib_callback)aac_aif_callback, fibctx);
} else {
- int fast = index & 0x01;
- struct fib * fib = &dev->fibs[index >> 2];
+ struct fib *fib = &dev->fibs[index];
struct hw_fib * hwfib = fib->hw_fib_va;
/*
@@ -288,12 +362,13 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
return 0;
}
- if (fast) {
+ if (isFastResponse) {
/*
* Doctor the fib
*/
*(__le32 *)hwfib->data = cpu_to_le32(ST_OK);
hwfib->header.XferState |= cpu_to_le32(AdapterProcessed);
+ fib->flags |= FIB_CONTEXT_FLAG_FASTRESP;
}
FIB_COUNTER_INCREMENT(aac_config.FibRecved);
@@ -314,17 +389,31 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
* NOTE: we cannot touch the fib after this
* call, because it may have been deallocated.
*/
- fib->flags = 0;
+ fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
fib->callback(fib->callback_data, fib);
} else {
unsigned long flagv;
dprintk((KERN_INFO "event_wait up\n"));
spin_lock_irqsave(&fib->event_lock, flagv);
- if (!fib->done)
+ if (!fib->done) {
fib->done = 1;
- up(&fib->event_wait);
+ up(&fib->event_wait);
+ }
spin_unlock_irqrestore(&fib->event_lock, flagv);
+
+ spin_lock_irqsave(&dev->manage_lock, mflags);
+ dev->management_fib_count--;
+ spin_unlock_irqrestore(&dev->manage_lock, mflags);
+
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
+ if (fib->done == 2) {
+ spin_lock_irqsave(&fib->event_lock, flagv);
+ fib->done = 0;
+ spin_unlock_irqrestore(&fib->event_lock, flagv);
+ aac_fib_complete(fib);
+ aac_fib_free(fib);
+ }
+
}
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 12:56:11 +0000