diff options
| author | Saurav Kashyap <skashyap@marvell.com> | 2021-08-23 14:56:48 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-10-20 19:16:00 +0200 |
| commit | 01d838164b4c305c1cafb0c3f71fb0027d99358b (patch) | |
| tree | 32dea242462871cad30453363efe323f0c77c6c4 /drivers/nvme/host | |
| parent | nvme: generate uevent once a multipath namespace is operational again (diff) | |
| download | linux-01d838164b4c305c1cafb0c3f71fb0027d99358b.tar.xz linux-01d838164b4c305c1cafb0c3f71fb0027d99358b.zip | |
nvme-fc: add support for ->map_queues
NVMe FC don't have support for map queues, unlike the PCI, RDMA and TCP
transports. Add a ->map_queues callout for the LLDDs to provide such
functionality.
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host')
| -rw-r--r-- | drivers/nvme/host/fc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index aa14ad963d91..34f7a7c236bf 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -16,6 +16,7 @@ #include <linux/nvme-fc.h> #include "fc.h" #include <scsi/scsi_transport_fc.h> +#include <linux/blk-mq-pci.h> /* *************************** Data Structures/Defines ****************** */ @@ -2841,6 +2842,28 @@ nvme_fc_complete_rq(struct request *rq) nvme_fc_ctrl_put(ctrl); } +static int nvme_fc_map_queues(struct blk_mq_tag_set *set) +{ + struct nvme_fc_ctrl *ctrl = set->driver_data; + int i; + + for (i = 0; i < set->nr_maps; i++) { + struct blk_mq_queue_map *map = &set->map[i]; + + if (!map->nr_queues) { + WARN_ON(i == HCTX_TYPE_DEFAULT); + continue; + } + + /* Call LLDD map queue functionality if defined */ + if (ctrl->lport->ops->map_queues) + ctrl->lport->ops->map_queues(&ctrl->lport->localport, + map); + else + blk_mq_map_queues(map); + } + return 0; +} static const struct blk_mq_ops nvme_fc_mq_ops = { .queue_rq = nvme_fc_queue_rq, @@ -2849,6 +2872,7 @@ static const struct blk_mq_ops nvme_fc_mq_ops = { .exit_request = nvme_fc_exit_request, .init_hctx = nvme_fc_init_hctx, .timeout = nvme_fc_timeout, + .map_queues = nvme_fc_map_queues, }; static int |