diff options
Diffstat (limited to 'drivers/scsi/fnic/fnic_scsi.c')
| -rw-r--r-- | drivers/scsi/fnic/fnic_scsi.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 3f88f56582a2..961bdf5d31cd 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -2224,6 +2224,22 @@ int fnic_device_reset(struct scsi_cmnd *sc) tag = sc->request->tag; if (unlikely(tag < 0)) { + /* + * XXX(hch): current the midlayer fakes up a struct + * request for the explicit reset ioctls, and those + * don't have a tag allocated to them. The below + * code pokes into midlayer structures to paper over + * this design issue, but that won't work for blk-mq. + * + * Either someone who can actually test the hardware + * will have to come up with a similar hack for the + * blk-mq case, or we'll have to bite the bullet and + * fix the way the EH ioctls work for real, but until + * that happens we fail these explicit requests here. + */ + if (shost_use_blk_mq(sc->device->host)) + goto fnic_device_reset_end; + tag = fnic_scsi_host_start_tag(fnic, sc); if (unlikely(tag == SCSI_NO_TAG)) goto fnic_device_reset_end; |