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Merge remote-tracking branch 'remotes/bonzini/scsi-next' into staging 

* remotes/bonzini/scsi-next:
  iscsi: always query max WRITE SAME length
  iscsi: ignore flushes on scsi-generic devices
  iscsi: recognize "invalid field" ASCQ from WRITE SAME command
  scsi-bus: remove bogus assertion

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2014-04-03 12:24:35 +01:00
parent 97891afab8 c97ca29db0
commit 784a5592c9
2 changed files with 13 additions and 7 deletions
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19
block/iscsi.c
View File

@ -417,6 +417,10 @@ static int coroutine_fn iscsi_co_flush(BlockDriverState *bs)
IscsiLun *iscsilun = bs->opaque;
struct IscsiTask iTask;
if (bs->sg) {
return 0;
}
iscsi_co_init_iscsitask(iscsilun, &iTask);
retry:
@ -838,7 +842,8 @@ retry:
if (iTask.status == SCSI_STATUS_CHECK_CONDITION &&
iTask.task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST &&
iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE) {
(iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE ||
iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_FIELD_IN_CDB)) {
/* WRITE SAME is not supported by the target */
iscsilun->has_write_same = false;
scsi_free_scsi_task(iTask.task);
@ -1330,18 +1335,20 @@ static int iscsi_refresh_limits(BlockDriverState *bs)
/* We don't actually refresh here, but just return data queried in
* iscsi_open(): iscsi targets don't change their limits. */
if (iscsilun->lbp.lbpu || iscsilun->lbp.lbpws) {
if (iscsilun->lbp.lbpu) {
if (iscsilun->bl.max_unmap < 0xffffffff) {
bs->bl.max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
iscsilun);
}
bs->bl.discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
iscsilun);
}
if (iscsilun->bl.max_ws_len < 0xffffffff) {
bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
iscsilun);
}
if (iscsilun->bl.max_ws_len < 0xffffffff) {
bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
iscsilun);
}
if (iscsilun->lbp.lbpws) {
bs->bl.write_zeroes_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
iscsilun);
}

1
hw/scsi/scsi-bus.c
View File

@ -101,7 +101,6 @@ static void scsi_dma_restart_bh(void *opaque)
scsi_req_continue(req);
break;
case SCSI_XFER_NONE:
assert(!req->sg);
scsi_req_dequeue(req);
scsi_req_enqueue(req);
break;