diff options
| author | FUJITA Tomonori <tomof@acm.org> | 2007-07-29 23:00:46 +0900 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.localdomain> | 2007-07-31 10:43:05 -0500 |
| commit | 0c6a89ba640d28e1dcd7fd1a217d2cfb92ae4953 (patch) | |
| tree | f222695dfb6def9299717dd23f729c15fdd96919 /block | |
| parent | db47c2d8d98a76083a88ec53f44cc74c48dfd1e8 (diff) | |
[SCSI] bsg: update sg_io_v4 structure
This updates sg_io_v4 structure (based on Doug's RFC, release 1.3).
The major changes are:
- add dout_resid field
- increase tag size to 64 bits to comply with SAM-4 and SRP
- add dout_iovec_count and din_iovec_count
dout_iovec_count and din_iovec_count aren't supported now. I'm not
sure whether they will be supported or not but they were added for the
possible future changes.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bsg.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/block/bsg.c b/block/bsg.c index d60eee549405..ed2646827234 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -1,5 +1,5 @@ /* - * bsg.c - block layer implementation of the sg v3 interface + * bsg.c - block layer implementation of the sg v4 interface * * Copyright (C) 2004 Jens Axboe <axboe@suse.de> SUSE Labs * Copyright (C) 2004 Peter M. Jones <pjones@redhat.com> @@ -421,7 +421,6 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, hdr->info = 0; if (hdr->device_status || hdr->transport_status || hdr->driver_status) hdr->info |= SG_INFO_CHECK; - hdr->din_resid = rq->data_len; hdr->response_len = 0; if (rq->sense_len && hdr->response) { @@ -437,9 +436,14 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, } if (rq->next_rq) { + hdr->dout_resid = rq->data_len; + hdr->din_resid = rq->next_rq->data_len; blk_rq_unmap_user(bidi_bio); blk_put_request(rq->next_rq); - } + } else if (rq_data_dir(rq) == READ) + hdr->din_resid = rq->data_len; + else + hdr->dout_resid = rq->data_len; blk_rq_unmap_user(bio); blk_put_request(rq); |