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nvme: add a numa_node field to struct nvme_ctrl

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Instead of directly poking into the struct device add a new numa_node
field to struct nvme_ctrl.  This allows fabrics drivers where ctrl->dev
is a virtual device to support NUMA affinity as well.

Also expose the field as a sysfs attribute, and populate it for the
RDMA and FC transports.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Hannes Reinecke
2018-11-16 09:22:29 +01:00
committed by Jens Axboe
parent 1190203555
commit 103e515efa
5 changed files with 12 additions and 7 deletions
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4
drivers/nvme/host/multipath.c
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@@ -141,7 +141,7 @@ static struct nvme_ns *__nvme_find_path(struct nvme_ns_head *head, int node)
test_bit(NVME_NS_ANA_PENDING, &ns->flags))
continue;
distance = node_distance(node, dev_to_node(ns->ctrl->dev));
distance = node_distance(node, ns->ctrl->numa_node);
switch (ns->ana_state) {
case NVME_ANA_OPTIMIZED:
@@ -261,7 +261,7 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
if (!(ctrl->subsys->cmic & (1 << 1)) || !multipath)
return 0;
q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE);
q = blk_alloc_queue_node(GFP_KERNEL, ctrl->numa_node);
if (!q)
goto out;
q->queuedata = head;