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[SCSI] i2o: 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.

Note: needs to change i2o_dma_map_sg when the chaining sg is ready.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
FUJITA Tomonori 2007-06-14 00:41:06 +09:00 committed by James Bottomley
parent 29c976844d
commit 0ea7154fbc
1 changed files with 7 additions and 17 deletions
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24
drivers/message/i2o/i2o_scsi.c
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@ -377,12 +377,8 @@ static int i2o_scsi_reply(struct i2o_controller *c, u32 m,
osm_err("SCSI error %08x\n", error);
dev = &c->pdev->dev;
if (cmd->use_sg)
dma_unmap_sg(dev, cmd->request_buffer, cmd->use_sg,
cmd->sc_data_direction);
else if (cmd->SCp.dma_handle)
dma_unmap_single(dev, cmd->SCp.dma_handle, cmd->request_bufflen,
cmd->sc_data_direction);
scsi_dma_unmap(cmd);
cmd->scsi_done(cmd);
@ -664,21 +660,15 @@ static int i2o_scsi_queuecommand(struct scsi_cmnd *SCpnt,
if (sgl_offset != SGL_OFFSET_0) {
/* write size of data addressed by SGL */
*mptr++ = cpu_to_le32(SCpnt->request_bufflen);
*mptr++ = cpu_to_le32(scsi_bufflen(SCpnt));
/* Now fill in the SGList and command */
if (SCpnt->use_sg) {
if (!i2o_dma_map_sg(c, SCpnt->request_buffer,
SCpnt->use_sg,
if (scsi_sg_count(SCpnt)) {
if (!i2o_dma_map_sg(c, scsi_sglist(SCpnt),
scsi_sg_count(SCpnt),
SCpnt->sc_data_direction, &mptr))
goto nomem;
} else {
SCpnt->SCp.dma_handle =
i2o_dma_map_single(c, SCpnt->request_buffer,
SCpnt->request_bufflen,
SCpnt->sc_data_direction, &mptr);
if (dma_mapping_error(SCpnt->SCp.dma_handle))
goto nomem;
}
}