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authorBoaz Harrosh <bharrosh@panasas.com>2007-12-13 14:47:40 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-30 22:03:40 +0300
commit30b0c37b27485a9cb897bfe3824f6f517b8c80d6 (patch)
tree22643da8e175ff7badf2413dc8c84b2e99613a6f /drivers/usb
parentbb52d82f45df3a2661d88befba7c79a7db8be496 (diff)
downloadlinux-30b0c37b27485a9cb897bfe3824f6f517b8c80d6.tar.xz
[SCSI] implement scsi_data_buffer
In preparation for bidi we abstract all IO members of scsi_cmnd, that will need to duplicate, into a substructure. - Group all IO members of scsi_cmnd into a scsi_data_buffer structure. - Adjust accessors to new members. - scsi_{alloc,free}_sgtable receive a scsi_data_buffer instead of scsi_cmnd. And work on it. - Adjust scsi_init_io() and scsi_release_buffers() for above change. - Fix other parts of scsi_lib/scsi.c to members migration. Use accessors where appropriate. - fix Documentation about scsi_cmnd in scsi_host.h - scsi_error.c * Changed needed members of struct scsi_eh_save. * Careful considerations in scsi_eh_prep/restore_cmnd. - sd.c and sr.c * sd and sr would adjust IO size to align on device's block size so code needs to change once we move to scsi_data_buff implementation. * Convert code to use scsi_for_each_sg * Use data accessors where appropriate. - tgt: convert libsrp to use scsi_data_buffer - isd200: This driver still bangs on scsi_cmnd IO members, so need changing [jejb: rebased on top of sg_table patches fixed up conflicts and used the synergy to eliminate use_sg and sg_count] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/storage/isd200.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 178e8c2a8a2f..0db488624ab1 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -415,14 +415,14 @@ static void isd200_set_srb(struct isd200_info *info,
sg_init_one(&info->sg, buff, bufflen);
srb->sc_data_direction = dir;
- srb->request_buffer = buff ? &info->sg : NULL;
- srb->request_bufflen = bufflen;
- srb->use_sg = buff ? 1 : 0;
+ srb->sdb.table.sgl = buff ? &info->sg : NULL;
+ srb->sdb.length = bufflen;
+ srb->sdb.table.nents = buff ? 1 : 0;
}
static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen)
{
- srb->request_bufflen = bufflen;
+ srb->sdb.length = bufflen;
}