/**
* zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command
* @fsf_req: request to be processed
* @sbtype: SBALE flags
* @scsi_cmnd: either scatter-gather list or buffer contained herein is used
* to fill SBALs
*/
int
zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req,
unsigned long sbtype, struct scsi_cmnd *scsi_cmnd)
{
return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, scsi_sglist(scsi_cmnd),
scsi_sg_count(scsi_cmnd),
ZFCP_MAX_SBALS_PER_REQ);
}
/**
* 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 inline 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
* @sbtype: SBALE flags
* @scsi_cmnd: either scatter-gather list or buffer contained herein is used
* to fill SBALs
*/
inline 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) {
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);
}
}
