diff options
author | Boaz Harrosh <bharrosh@panasas.com> | 2007-12-13 12:47:40 +0100 |
---|---|---|
committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-30 20:03:40 +0100 |
commit | 30b0c37b27485a9cb897bfe3824f6f517b8c80d6 (patch) | |
tree | 22643da8e175ff7badf2413dc8c84b2e99613a6f /include/scsi/scsi_eh.h | |
parent | [SCSI] tgt: use scsi_init_io instead of scsi_alloc_sgtable (diff) | |
download | linux-30b0c37b27485a9cb897bfe3824f6f517b8c80d6.tar.xz linux-30b0c37b27485a9cb897bfe3824f6f517b8c80d6.zip |
[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 'include/scsi/scsi_eh.h')
-rw-r--r-- | include/scsi/scsi_eh.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index d21b8913ceb3..1e08be1466ee 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -68,16 +68,14 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, extern int scsi_reset_provider(struct scsi_device *, int); struct scsi_eh_save { + /* saved state */ int result; enum dma_data_direction data_direction; unsigned char cmd_len; unsigned char cmnd[MAX_COMMAND_SIZE]; + struct scsi_data_buffer sdb; - void *buffer; - unsigned bufflen; - unsigned short use_sg; - int resid; - + /* new command support */ struct scatterlist sense_sgl; }; |