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| author | Keith Busch <kbusch@kernel.org> | 2023-04-26 08:04:41 -0700 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2023-06-12 10:33:03 -0700 |
| commit | a249d3066de62ce2ed68fdf6445556658ecba222 (patch) | |
| tree | d8e879847d18cd4e5c60c793dc3a2b70070bf7dd /drivers/nvme/host/fabrics.h | |
| parent | 4a4d9bc0c86dcd7b6f9b5471962839e8ce7682e4 (diff) | |
| download | linux-stable-a249d3066de62ce2ed68fdf6445556658ecba222.tar.gz linux-stable-a249d3066de62ce2ed68fdf6445556658ecba222.tar.bz2 linux-stable-a249d3066de62ce2ed68fdf6445556658ecba222.zip | |
nvme-fabrics: add queue setup helpers
tcp and rdma transports have lots of duplicate code setting up the
different queue mappings. Add common helpers.
Cc: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme/host/fabrics.h')
| -rw-r--r-- | drivers/nvme/host/fabrics.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index dcac3df8a5f7..e438d67a319b 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -203,6 +203,13 @@ static inline void nvmf_complete_timed_out_request(struct request *rq) } } +static inline unsigned int nvmf_nr_io_queues(struct nvmf_ctrl_options *opts) +{ + return min(opts->nr_io_queues, num_online_cpus()) + + min(opts->nr_write_queues, num_online_cpus()) + + min(opts->nr_poll_queues, num_online_cpus()); +} + int nvmf_reg_read32(struct nvme_ctrl *ctrl, u32 off, u32 *val); int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val); int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val); @@ -215,5 +222,9 @@ int nvmf_get_address(struct nvme_ctrl *ctrl, char *buf, int size); bool nvmf_should_reconnect(struct nvme_ctrl *ctrl); bool nvmf_ip_options_match(struct nvme_ctrl *ctrl, struct nvmf_ctrl_options *opts); +void nvmf_set_io_queues(struct nvmf_ctrl_options *opts, u32 nr_io_queues, + u32 io_queues[HCTX_MAX_TYPES]); +void nvmf_map_queues(struct blk_mq_tag_set *set, struct nvme_ctrl *ctrl, + u32 io_queues[HCTX_MAX_TYPES]); #endif /* _NVME_FABRICS_H */ |