cmd->sense_buffer);
}
+
+static int scsi_mq_poll(struct blk_mq_hw_ctx *hctx)
+{
+ struct request_queue *q = hctx->queue;
+ struct scsi_device *sdev = q->queuedata;
+ struct Scsi_Host *shost = sdev->host;
+
+ if (shost->hostt->mq_poll)
+ return shost->hostt->mq_poll(shost, hctx->queue_num);
+
+ return 0;
+}
+
static int scsi_map_queues(struct blk_mq_tag_set *set)
{
struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set);
.cleanup_rq = scsi_cleanup_rq,
.busy = scsi_mq_lld_busy,
.map_queues = scsi_map_queues,
+ .poll = scsi_mq_poll,
.set_rq_budget_token = scsi_mq_set_rq_budget_token,
.get_rq_budget_token = scsi_mq_get_rq_budget_token,
};
.cleanup_rq = scsi_cleanup_rq,
.busy = scsi_mq_lld_busy,
.map_queues = scsi_map_queues,
+ .poll = scsi_mq_poll,
.set_rq_budget_token = scsi_mq_set_rq_budget_token,
.get_rq_budget_token = scsi_mq_get_rq_budget_token,
};
else
tag_set->ops = &scsi_mq_ops_no_commit;
tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1;
+ tag_set->nr_maps = shost->nr_maps ? : 1;
tag_set->queue_depth = shost->can_queue;
tag_set->cmd_size = cmd_size;
tag_set->numa_node = NUMA_NO_NODE;
*/
int (* map_queues)(struct Scsi_Host *shost);
+ /*
+ * SCSI interface of blk_poll - poll for IO completions.
+ * Only applicable if SCSI LLD exposes multiple h/w queues.
+ *
+ * Return value: Number of completed entries found.
+ *
+ * Status: OPTIONAL
+ */
+ int (* mq_poll)(struct Scsi_Host *shost, unsigned int queue_num);
+
/*
* Check if scatterlists need to be padded for DMA draining.
*
* the total queue depth is can_queue.
*/
unsigned nr_hw_queues;
+ unsigned nr_maps;
unsigned active_mode:2;
unsigned unchecked_isa_dma:1;