blk-mq: initial support for multiple queue maps
Add a queue offset to the tag map. This enables users to map
iteratively, for each queue map type they support.
Bump maximum number of supported maps to 2, we're now fully
able to support more than 1 map.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/blk-mq-virtio.c b/block/blk-mq-virtio.c
index 661fbfe..3708271 100644
--- a/block/blk-mq-virtio.c
+++ b/block/blk-mq-virtio.c
@@ -44,7 +44,7 @@ int blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
goto fallback;
for_each_cpu(cpu, mask)
- qmap->mq_map[cpu] = queue;
+ qmap->mq_map[cpu] = qmap->queue_offset + queue;
}
return 0;
