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path: root/drivers/scsi/aacraid/commsup.c
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Diffstat (limited to 'drivers/scsi/aacraid/commsup.c')
-rw-r--r--drivers/scsi/aacraid/commsup.c105
1 files changed, 82 insertions, 23 deletions
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index afc9aeba5ed..cab190af634 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -5,7 +5,8 @@
* 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
@@ -63,9 +64,11 @@ static int fib_map_alloc(struct aac_dev *dev)
"allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n",
dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue,
AAC_NUM_MGT_FIB, &dev->hw_fib_pa));
- if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, dev->max_fib_size
- * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB),
- &dev->hw_fib_pa))==NULL)
+ dev->hw_fib_va = pci_alloc_consistent(dev->pdev,
+ (dev->max_fib_size + sizeof(struct aac_fib_xporthdr))
+ * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1),
+ &dev->hw_fib_pa);
+ if (dev->hw_fib_va == NULL)
return -ENOMEM;
return 0;
}
@@ -91,7 +94,7 @@ void aac_fib_map_free(struct aac_dev *dev)
* aac_fib_setup - setup the fibs
* @dev: Adapter to set up
*
- * Allocate the PCI space for the fibs, map it and then intialise the
+ * Allocate the PCI space for the fibs, map it and then initialise the
* fib area, the unmapped fib data and also the free list
*/
@@ -110,9 +113,22 @@ int aac_fib_setup(struct aac_dev * dev)
if (i<0)
return -ENOMEM;
+ /* 32 byte alignment for PMC */
+ hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1);
+ dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va +
+ (hw_fib_pa - dev->hw_fib_pa));
+ dev->hw_fib_pa = hw_fib_pa;
+ memset(dev->hw_fib_va, 0,
+ (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) *
+ (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
+
+ /* add Xport header */
+ dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va +
+ sizeof(struct aac_fib_xporthdr));
+ dev->hw_fib_pa += sizeof(struct aac_fib_xporthdr);
+
hw_fib = dev->hw_fib_va;
hw_fib_pa = dev->hw_fib_pa;
- memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
/*
* Initialise the fibs
*/
@@ -120,6 +136,7 @@ int aac_fib_setup(struct aac_dev * dev)
i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
i++, fibptr++)
{
+ fibptr->flags = 0;
fibptr->dev = dev;
fibptr->hw_fib_va = hw_fib;
fibptr->data = (void *) fibptr->hw_fib_va->data;
@@ -129,8 +146,10 @@ int aac_fib_setup(struct aac_dev * dev)
hw_fib->header.XferState = cpu_to_le32(0xffffffff);
hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size);
fibptr->hw_fib_pa = hw_fib_pa;
- hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + dev->max_fib_size);
- hw_fib_pa = hw_fib_pa + dev->max_fib_size;
+ hw_fib = (struct hw_fib *)((unsigned char *)hw_fib +
+ dev->max_fib_size + sizeof(struct aac_fib_xporthdr));
+ hw_fib_pa = hw_fib_pa +
+ dev->max_fib_size + sizeof(struct aac_fib_xporthdr);
}
/*
* Add the fib chain to the free list
@@ -222,11 +241,11 @@ void aac_fib_init(struct fib *fibptr)
{
struct hw_fib *hw_fib = fibptr->hw_fib_va;
+ memset(&hw_fib->header, 0, sizeof(struct aac_fibhdr));
hw_fib->header.StructType = FIB_MAGIC;
hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size);
hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable);
- hw_fib->header.SenderFibAddress = 0; /* Filled in later if needed */
- hw_fib->header.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa);
+ hw_fib->header.u.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa);
hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size);
}
@@ -241,7 +260,6 @@ void aac_fib_init(struct fib *fibptr)
static void fib_dealloc(struct fib * fibptr)
{
struct hw_fib *hw_fib = fibptr->hw_fib_va;
- BUG_ON(hw_fib->header.StructType != FIB_MAGIC);
hw_fib->header.XferState = 0;
}
@@ -352,7 +370,7 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
entry->addr = hw_fib->header.SenderFibAddress;
/* Restore adapters pointer to the FIB */
- hw_fib->header.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */
+ hw_fib->header.u.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */
map = 0;
}
/*
@@ -398,12 +416,13 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
unsigned long flags = 0;
unsigned long qflags;
unsigned long mflags = 0;
+ unsigned long sflags = 0;
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
/*
- * There are 5 cases with the wait and reponse requested flags.
+ * There are 5 cases with the wait and response requested flags.
* The only invalid cases are if the caller requests to wait and
* does not request a response and if the caller does not want a
* response and the Fib is not allocated from pool. If a response
@@ -431,7 +450,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
*/
hw_fib->header.SenderFibAddress = cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2);
- hw_fib->header.SenderData = (u32)(fibptr - dev->fibs);
+ hw_fib->header.Handle = (u32)(fibptr - dev->fibs) + 1;
/*
* Set FIB state to indicate where it came from and if we want a
* response from the adapter. Also load the command from the
@@ -441,7 +460,6 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
*/
hw_fib->header.Command = cpu_to_le16(command);
hw_fib->header.XferState |= cpu_to_le32(SentFromHost);
- fibptr->hw_fib_va->header.Flags = 0; /* 0 the flags field - internal only*/
/*
* Set the size of the Fib we want to send to the adapter
*/
@@ -494,6 +512,31 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
spin_lock_irqsave(&fibptr->event_lock, flags);
}
+ if (dev->sync_mode) {
+ if (wait)
+ spin_unlock_irqrestore(&fibptr->event_lock, flags);
+ spin_lock_irqsave(&dev->sync_lock, sflags);
+ if (dev->sync_fib) {
+ list_add_tail(&fibptr->fiblink, &dev->sync_fib_list);
+ spin_unlock_irqrestore(&dev->sync_lock, sflags);
+ } else {
+ dev->sync_fib = fibptr;
+ spin_unlock_irqrestore(&dev->sync_lock, sflags);
+ aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+ (u32)fibptr->hw_fib_pa, 0, 0, 0, 0, 0,
+ NULL, NULL, NULL, NULL, NULL);
+ }
+ if (wait) {
+ fibptr->flags |= FIB_CONTEXT_FLAG_WAIT;
+ if (down_interruptible(&fibptr->event_wait)) {
+ fibptr->flags &= ~FIB_CONTEXT_FLAG_WAIT;
+ return -EFAULT;
+ }
+ return 0;
+ }
+ return -EINPROGRESS;
+ }
+
if (aac_adapter_deliver(fibptr) != 0) {
printk(KERN_ERR "aac_fib_send: returned -EBUSY\n");
if (wait) {
@@ -520,10 +563,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
* functioning because an interrupt routing or other
* hardware failure has occurred.
*/
- unsigned long count = 36000000L; /* 3 minutes */
+ unsigned long timeout = jiffies + (180 * HZ); /* 3 minutes */
while (down_trylock(&fibptr->event_wait)) {
int blink;
- if (--count == 0) {
+ if (time_is_before_eq_jiffies(timeout)) {
struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue];
spin_lock_irqsave(q->lock, qflags);
q->numpending--;
@@ -544,7 +587,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
}
return -EFAULT;
}
- udelay(5);
+ /* We used to udelay() here but that absorbed
+ * a CPU when a timeout occured. Not very
+ * useful. */
+ cpu_relax();
}
} else if (down_interruptible(&fibptr->event_wait)) {
/* Do nothing ... satisfy
@@ -664,17 +710,25 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
unsigned long nointr = 0;
unsigned long qflags;
+ if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 ||
+ dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
+ kfree(hw_fib);
+ return 0;
+ }
+
if (hw_fib->header.XferState == 0) {
if (dev->comm_interface == AAC_COMM_MESSAGE)
- kfree (hw_fib);
+ kfree(hw_fib);
return 0;
}
/*
* If we plan to do anything check the structure type first.
*/
- if (hw_fib->header.StructType != FIB_MAGIC) {
+ if (hw_fib->header.StructType != FIB_MAGIC &&
+ hw_fib->header.StructType != FIB_MAGIC2 &&
+ hw_fib->header.StructType != FIB_MAGIC2_64) {
if (dev->comm_interface == AAC_COMM_MESSAGE)
- kfree (hw_fib);
+ kfree(hw_fib);
return -EINVAL;
}
/*
@@ -734,7 +788,9 @@ int aac_fib_complete(struct fib *fibptr)
* If we plan to do anything check the structure type first.
*/
- if (hw_fib->header.StructType != FIB_MAGIC)
+ if (hw_fib->header.StructType != FIB_MAGIC &&
+ hw_fib->header.StructType != FIB_MAGIC2 &&
+ hw_fib->header.StructType != FIB_MAGIC2_64)
return -EINVAL;
/*
* This block completes a cdb which orginated on the host and we
@@ -1260,6 +1316,8 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
kfree(aac->queues);
aac->queues = NULL;
free_irq(aac->pdev->irq, aac);
+ if (aac->msi)
+ pci_disable_msi(aac->pdev);
kfree(aac->fsa_dev);
aac->fsa_dev = NULL;
quirks = aac_get_driver_ident(index)->quirks;
@@ -1278,7 +1336,8 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
if ((retval = pci_set_dma_mask(aac->pdev, DMA_BIT_MASK(32))))
goto out;
if (jafo) {
- aac->thread = kthread_run(aac_command_thread, aac, aac->name);
+ aac->thread = kthread_run(aac_command_thread, aac, "%s",
+ aac->name);
if (IS_ERR(aac->thread)) {
retval = PTR_ERR(aac->thread);
goto out;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 20:19:47 +0000