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[SCSI] zfcp: convert to use the data buffer accessors 

- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
FUJITA Tomonori 2007-07-29 16:46:28 +09:00 committed by James Bottomley
parent 6a302358d8
commit 7936a892e7
2 changed files with 9 additions and 37 deletions
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5
drivers/s390/scsi/zfcp_fsf.c
View File

@ -4154,8 +4154,9 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
fcp_rsp_iu->fcp_resid,
(int) zfcp_get_fcp_dl(fcp_cmnd_iu));
scpnt->resid = fcp_rsp_iu->fcp_resid;
if (scpnt->request_bufflen - scpnt->resid < scpnt->underflow)
scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid);
if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) <
scpnt->underflow)
set_host_byte(&scpnt->result, DID_ERROR);
}

41
drivers/s390/scsi/zfcp_qdio.c
View File

@ -36,8 +36,6 @@ static void zfcp_qdio_sbale_fill
(struct zfcp_fsf_req *, unsigned long, void *, int);
static int zfcp_qdio_sbals_from_segment
(struct zfcp_fsf_req *, unsigned long, void *, unsigned long);
static int zfcp_qdio_sbals_from_buffer
(struct zfcp_fsf_req *, unsigned long, void *, unsigned long, int);
static qdio_handler_t zfcp_qdio_request_handler;
static qdio_handler_t zfcp_qdio_response_handler;
@ -631,28 +629,6 @@ out:
}
/**
* zfcp_qdio_sbals_from_buffer - fill SBALs from buffer
* @fsf_req: request to be processed
* @sbtype: SBALE flags
* @buffer: data buffer
* @length: length of buffer
* @max_sbals: upper bound for number of SBALs to be used
*/
static int
zfcp_qdio_sbals_from_buffer(struct zfcp_fsf_req *fsf_req, unsigned long sbtype,
void *buffer, unsigned long length, int max_sbals)
{
struct scatterlist sg_segment;
zfcp_address_to_sg(buffer, &sg_segment);
sg_segment.length = length;
return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, &sg_segment, 1,
max_sbals);
}
/**
* zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command
* @fsf_req: request to be processed
@ -664,18 +640,13 @@ int
zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req,
unsigned long sbtype, struct scsi_cmnd *scsi_cmnd)
{
if (scsi_cmnd->use_sg) {
if (scsi_sg_count(scsi_cmnd))
return zfcp_qdio_sbals_from_sg(fsf_req, sbtype,
(struct scatterlist *)
scsi_cmnd->request_buffer,
scsi_cmnd->use_sg,
ZFCP_MAX_SBALS_PER_REQ);
} else {
return zfcp_qdio_sbals_from_buffer(fsf_req, sbtype,
scsi_cmnd->request_buffer,
scsi_cmnd->request_bufflen,
ZFCP_MAX_SBALS_PER_REQ);
}
scsi_sglist(scsi_cmnd),
scsi_sg_count(scsi_cmnd),
ZFCP_MAX_SBALS_PER_REQ);
else
return 0;
}
/**