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| author | Sagi Grimberg <sagi@grimberg.me> | 2017-07-13 11:09:43 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-08 14:58:03 -0400 |
| commit | 24c5dc6610e8a3764fcb885cc3284c12ff1513de (patch) | |
| tree | 4e63a3a4d5cff3d270598feb0d617c146ae20a41 /include/linux/blk-mq-rdma.h | |
| parent | 40b24403f33ed8e9401b087e25f46d002fc8f396 (diff) | |
| download | lwn-24c5dc6610e8a3764fcb885cc3284c12ff1513de.tar.gz lwn-24c5dc6610e8a3764fcb885cc3284c12ff1513de.zip | |
block: Add rdma affinity based queue mapping helper
Like pci and virtio, we add a rdma helper for affinity
spreading. This achieves optimal mq affinity assignments
according to the underlying rdma device affinity maps.
Reviewed-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/linux/blk-mq-rdma.h')
| -rw-r--r-- | include/linux/blk-mq-rdma.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/blk-mq-rdma.h b/include/linux/blk-mq-rdma.h new file mode 100644 index 000000000000..b4ade198007d --- /dev/null +++ b/include/linux/blk-mq-rdma.h @@ -0,0 +1,10 @@ +#ifndef _LINUX_BLK_MQ_RDMA_H +#define _LINUX_BLK_MQ_RDMA_H + +struct blk_mq_tag_set; +struct ib_device; + +int blk_mq_rdma_map_queues(struct blk_mq_tag_set *set, + struct ib_device *dev, int first_vec); + +#endif /* _LINUX_BLK_MQ_RDMA_H */ |