From 2d9c5c20c93eacc00642f6ce10ce47f31fa0b6ac Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 1 Nov 2016 08:12:48 -0600 Subject: scsi: allow LLDDs to expose the queue mapping to blk-mq Just hand through the blk-mq map_queues method in the host template. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn Reviewed-by: Sagi Grimberg Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 2cca9cffc63f..f23ec240cab0 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1990,6 +1990,15 @@ static void scsi_exit_request(void *data, struct request *rq, kfree(cmd->sense_buffer); } +static int scsi_map_queues(struct blk_mq_tag_set *set) +{ + struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set); + + if (shost->hostt->map_queues) + return shost->hostt->map_queues(shost); + return blk_mq_map_queues(set); +} + static u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost) { struct device *host_dev; @@ -2082,6 +2091,7 @@ static struct blk_mq_ops scsi_mq_ops = { .timeout = scsi_timeout, .init_request = scsi_init_request, .exit_request = scsi_exit_request, + .map_queues = scsi_map_queues, }; struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev) -- cgit v1.2.3