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| author | Boaz Harrosh <bharrosh@panasas.com> | 2007-12-13 13:47:40 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-30 13:03:40 -0600 |
| commit | 30b0c37b27485a9cb897bfe3824f6f517b8c80d6 (patch) | |
| tree | 22643da8e175ff7badf2413dc8c84b2e99613a6f /drivers/usb | |
| parent | bb52d82f45df3a2661d88befba7c79a7db8be496 (diff) | |
| download | linux-30b0c37b27485a9cb897bfe3824f6f517b8c80d6.tar.bz2 | |
[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.c | 8 |
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; } |