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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-05-14 19:27:06 +0900 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-05-26 19:18:10 -0500 |
| commit | e7d6cf55ea47684b704d67a6046044c29bad4824 (patch) | |
| tree | a74757d0a889d551d5ebdc84db80f04814d9fc58 /drivers/scsi/wd7000.c | |
| parent | 58e2a02eb18393e76a469580fedf7caec190eb5e (diff) | |
| download | linux-e7d6cf55ea47684b704d67a6046044c29bad4824.tar.gz linux-e7d6cf55ea47684b704d67a6046044c29bad4824.tar.bz2 linux-e7d6cf55ea47684b704d67a6046044c29bad4824.zip | |
[SCSI] wd7000: 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.
Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/wd7000.c')
| -rw-r--r-- | drivers/scsi/wd7000.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 30be76514c43..d6fd4259c56b 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1091,6 +1091,7 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt, unchar *cdb = (unchar *) SCpnt->cmnd; unchar idlun; short cdblen; + int nseg; Adapter *host = (Adapter *) SCpnt->device->host->hostdata; cdblen = SCpnt->cmd_len; @@ -1106,28 +1107,29 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt, SCpnt->host_scribble = (unchar *) scb; scb->host = host; - if (SCpnt->use_sg) { - struct scatterlist *sg = (struct scatterlist *) SCpnt->request_buffer; + nseg = scsi_sg_count(SCpnt); + if (nseg) { + struct scatterlist *sg; unsigned i; if (SCpnt->device->host->sg_tablesize == SG_NONE) { panic("wd7000_queuecommand: scatter/gather not supported.\n"); } - dprintk("Using scatter/gather with %d elements.\n", SCpnt->use_sg); + dprintk("Using scatter/gather with %d elements.\n", nseg); sgb = scb->sgb; scb->op = 1; any2scsi(scb->dataptr, (int) sgb); - any2scsi(scb->maxlen, SCpnt->use_sg * sizeof(Sgb)); + any2scsi(scb->maxlen, nseg * sizeof(Sgb)); - for (i = 0; i < SCpnt->use_sg; i++) { - any2scsi(sgb[i].ptr, isa_page_to_bus(sg[i].page) + sg[i].offset); - any2scsi(sgb[i].len, sg[i].length); + scsi_for_each_sg(SCpnt, sg, nseg, i) { + any2scsi(sgb[i].ptr, isa_page_to_bus(sg->page) + sg->offset); + any2scsi(sgb[i].len, sg->length); } } else { scb->op = 0; - any2scsi(scb->dataptr, isa_virt_to_bus(SCpnt->request_buffer)); - any2scsi(scb->maxlen, SCpnt->request_bufflen); + any2scsi(scb->dataptr, isa_virt_to_bus(scsi_sglist(SCpnt))); + any2scsi(scb->maxlen, scsi_bufflen(SCpnt)); } /* FIXME: drop lock and yield here ? */ |