diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2025-11-13 09:41:51 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-11-19 22:42:09 -0500 |
| commit | 13b77ed9c2a9e5a1248222df8aeaecb0c2ead9cb (patch) | |
| tree | b690b387e4b9b0f015bb71b141a445dedd1b854b /drivers/scsi/scsi_debug.c | |
| parent | 78b1a242fe612a755f2158fd206ee6bb577d18ca (diff) | |
scsi: scsi_debug: Support injecting unaligned write errors
Allow user space software, e.g. a blktests test, to inject unaligned
write errors.
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251113174151.1095574-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
| -rw-r--r-- | drivers/scsi/scsi_debug.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 92b2af803d87..1f2a53ba5dd9 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -230,6 +230,7 @@ struct tape_block { #define SDEBUG_OPT_NO_CDB_NOISE 0x4000 #define SDEBUG_OPT_HOST_BUSY 0x8000 #define SDEBUG_OPT_CMD_ABORT 0x10000 +#define SDEBUG_OPT_UNALIGNED_WRITE 0x20000 #define SDEBUG_OPT_ALL_NOISE (SDEBUG_OPT_NOISE | SDEBUG_OPT_Q_NOISE | \ SDEBUG_OPT_RESET_NOISE) #define SDEBUG_OPT_ALL_INJECTING (SDEBUG_OPT_RECOVERED_ERR | \ @@ -237,7 +238,8 @@ struct tape_block { SDEBUG_OPT_DIF_ERR | SDEBUG_OPT_DIX_ERR | \ SDEBUG_OPT_SHORT_TRANSFER | \ SDEBUG_OPT_HOST_BUSY | \ - SDEBUG_OPT_CMD_ABORT) + SDEBUG_OPT_CMD_ABORT | \ + SDEBUG_OPT_UNALIGNED_WRITE) #define SDEBUG_OPT_RECOV_DIF_DIX (SDEBUG_OPT_RECOVERED_ERR | \ SDEBUG_OPT_DIF_ERR | SDEBUG_OPT_DIX_ERR) @@ -4932,6 +4934,14 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) u8 *cmd = scp->cmnd; bool meta_data_locked = false; + if (unlikely(sdebug_opts & SDEBUG_OPT_UNALIGNED_WRITE && + atomic_read(&sdeb_inject_pending))) { + atomic_set(&sdeb_inject_pending, 0); + mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, + UNALIGNED_WRITE_ASCQ); + return check_condition_result; + } + switch (cmd[0]) { case WRITE_16: ei_lba = 0; |