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[SCSI] convert SPI transport class to scsi_execute

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This one's slightly more difficult.  The transport class uses
REQ_FAILFAST, so another interface (scsi_execute) had to be invented to
take the extra flag.  Also, the sense functions are shifted around to
allow spi_execute to place data directly into a struct scsi_sense_hdr.
With this change, there's probably a lot of unnecessary sense buffer
allocation going on which we can fix later.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley
2005-08-28 11:31:14 -05:00
parent 1cf72699c1
commit 33aa687db9
6 changed files with 89 additions and 77 deletions
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13
drivers/scsi/scsi_lib.c
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@@ -282,7 +282,7 @@ void scsi_wait_req(struct scsi_request *sreq, const void *cmnd, void *buffer,
EXPORT_SYMBOL(scsi_wait_req);
/**
* scsi_execute_req - insert request and wait for the result
* scsi_execute - insert request and wait for the result
* @sdev: scsi device
* @cmd: scsi command
* @data_direction: data direction
@@ -291,13 +291,14 @@ EXPORT_SYMBOL(scsi_wait_req);
* @sense: optional sense buffer
* @timeout: request timeout in seconds
* @retries: number of times to retry request
* @flags: or into request flags;
*
* scsi_execute_req returns the req->errors value which is the
* the scsi_cmnd result field.
**/
int scsi_execute_req(struct scsi_device *sdev, unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries)
int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
int data_direction, void *buffer, unsigned bufflen,
unsigned char *sense, int timeout, int retries, int flags)
{
struct request *req;
int write = (data_direction == DMA_TO_DEVICE);
@@ -314,7 +315,7 @@ int scsi_execute_req(struct scsi_device *sdev, unsigned char *cmd,
req->sense = sense;
req->sense_len = 0;
req->timeout = timeout;
req->flags |= REQ_BLOCK_PC | REQ_SPECIAL;
req->flags |= flags | REQ_BLOCK_PC | REQ_SPECIAL;
/*
* head injection *required* here otherwise quiesce won't work
@@ -328,7 +329,7 @@ int scsi_execute_req(struct scsi_device *sdev, unsigned char *cmd,
return ret;
}
EXPORT_SYMBOL(scsi_execute_req);
EXPORT_SYMBOL(scsi_execute);
/*
* Function: scsi_init_cmd_errh()