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-rw-r--r--block/blk-mq-rdma.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/block/blk-mq-rdma.c b/block/blk-mq-rdma.c
deleted file mode 100644
index 29c1f4d6eb04..000000000000
--- a/block/blk-mq-rdma.c
+++ /dev/null
@@ -1,44 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2017 Sagi Grimberg.
- */
-#include <linux/blk-mq.h>
-#include <linux/blk-mq-rdma.h>
-#include <rdma/ib_verbs.h>
-
-/**
- * blk_mq_rdma_map_queues - provide a default queue mapping for rdma device
- * @map: CPU to hardware queue map.
- * @dev: rdma device to provide a mapping for.
- * @first_vec: first interrupt vectors to use for queues (usually 0)
- *
- * This function assumes the rdma device @dev has at least as many available
- * interrupt vetors as @set has queues. It will then query it's affinity mask
- * and built queue mapping that maps a queue to the CPUs that have irq affinity
- * for the corresponding vector.
- *
- * In case either the driver passed a @dev with less vectors than
- * @set->nr_hw_queues, or @dev does not provide an affinity mask for a
- * vector, we fallback to the naive mapping.
- */
-void blk_mq_rdma_map_queues(struct blk_mq_queue_map *map,
- struct ib_device *dev, int first_vec)
-{
- const struct cpumask *mask;
- unsigned int queue, cpu;
-
- for (queue = 0; queue < map->nr_queues; queue++) {
- mask = ib_get_vector_affinity(dev, first_vec + queue);
- if (!mask)
- goto fallback;
-
- for_each_cpu(cpu, mask)
- map->mq_map[cpu] = map->queue_offset + queue;
- }
-
- return;
-
-fallback:
- blk_mq_map_queues(map);
-}
-EXPORT_SYMBOL_GPL(blk_mq_rdma_map_queues);