2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index dd9464920456..ef22b275d050 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -474,6 +474,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
                 shost->dma_boundary = 0xffffffff;
 
         shost->use_blk_mq = scsi_use_blk_mq;
+        shost->use_blk_mq = scsi_use_blk_mq || shost->hostt->force_blk_mq;
 
         device_initialize(&shost->shost_gendev);
         dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a8b7bf879ced..9c1e4bad6581 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -452,6 +452,9 @@ struct scsi_host_template {
         /* True if the controller does not support WRITE SAME */
         unsigned no_write_same:1;
 
+        /* True if the low-level driver supports blk-mq only */
+        unsigned force_blk_mq:1;
+
         /*
          * Countdown for host blocking with no commands outstanding.
          */