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[SCSI] aacraid: Series 7 Async. (performance) mode support

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- Series 7 Async. (performance) mode support added
- New scatter/gather list format for Series 7
- Driver converts s/g list to a firmware suitable list for best performance on
  Series 7, this can be disabled with driver parameter "aac_convert_sgl" for
  testing purposes
- New container read/write command structure for Series 7
- Fast response support for the SCSI pass-through path added
- Async. status response buffer changes

Signed-off-by: Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Mahesh Rajashekhara
2012-07-14 18:18:51 +05:30
committed by James Bottomley
parent fa7250d694
commit 85d22bbf67
8 changed files with 358 additions and 126 deletions
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22
drivers/scsi/aacraid/commsup.c
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@@ -136,6 +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;
@@ -240,11 +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);
}
@@ -259,7 +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;
}
@@ -370,7 +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;
}
/*
@@ -450,7 +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
@@ -460,7 +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
*/
@@ -711,7 +710,8 @@ 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) {
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
kfree(hw_fib);
return 0;
}
@@ -724,7 +724,9 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
/*
* 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);
return -EINVAL;
@@ -786,7 +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