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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2007-05-14 14:24:01 +0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-05-27 04:21:09 +0400
commitbc1ebfba1a3a27122462fd342d11216e3faea53f (patch)
treee720d6139dee7a8dc0fc7db55e748d178a3b79ca /drivers/scsi/qlogicfas408.c
parentfea97f9ab26a17c29eadc102c04b88776d6262d4 (diff)
downloadlinux-bc1ebfba1a3a27122462fd342d11216e3faea53f.tar.xz
[SCSI] qlogicfas408: 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/qlogicfas408.c')
-rw-r--r--drivers/scsi/qlogicfas408.c30
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
index 2e7db18f5aef..2bfbf26c00ed 100644
--- a/drivers/scsi/qlogicfas408.c
+++ b/drivers/scsi/qlogicfas408.c
@@ -265,8 +265,6 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
unsigned int message; /* scsi returned message */
unsigned int phase; /* recorded scsi phase */
unsigned int reqlen; /* total length of transfer */
- struct scatterlist *sglist; /* scatter-gather list pointer */
- unsigned int sgcount; /* sg counter */
char *buf;
struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
int qbase = priv->qbase;
@@ -301,9 +299,10 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
if (inb(qbase + 7) & 0x1f) /* if some bytes in fifo */
outb(1, qbase + 3); /* clear fifo */
/* note that request_bufflen is the total xfer size when sg is used */
- reqlen = cmd->request_bufflen;
+ reqlen = scsi_bufflen(cmd);
/* note that it won't work if transfers > 16M are requested */
if (reqlen && !((phase = inb(qbase + 4)) & 6)) { /* data phase */
+ struct scatterlist *sg;
rtrc(2)
outb(reqlen, qbase); /* low-mid xfer cnt */
outb(reqlen >> 8, qbase + 1); /* low-mid xfer cnt */
@@ -311,23 +310,16 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
outb(0x90, qbase + 3); /* command do xfer */
/* PIO pseudo DMA to buffer or sglist */
REG1;
- if (!cmd->use_sg)
- ql_pdma(priv, phase, cmd->request_buffer,
- cmd->request_bufflen);
- else {
- sgcount = cmd->use_sg;
- sglist = cmd->request_buffer;
- while (sgcount--) {
- if (priv->qabort) {
- REG0;
- return ((priv->qabort == 1 ?
- DID_ABORT : DID_RESET) << 16);
- }
- buf = page_address(sglist->page) + sglist->offset;
- if (ql_pdma(priv, phase, buf, sglist->length))
- break;
- sglist++;
+
+ scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
+ if (priv->qabort) {
+ REG0;
+ return ((priv->qabort == 1 ?
+ DID_ABORT : DID_RESET) << 16);
}
+ buf = page_address(sg->page) + sg->offset;
+ if (ql_pdma(priv, phase, buf, sg->length))
+ break;
}
REG0;
rtrc(2)