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| author | Christoph Hellwig <hch@lst.de> | 2021-03-03 13:28:22 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-03-18 05:38:48 +0100 |
| commit | ed01fee283a067c72b2d6500046080dbc1bb9dae (patch) | |
| tree | 60b0ad1e023db4800c923331b358a9ef3773d4e0 /drivers/nvme/host/fabrics.h | |
| parent | Linux 5.12-rc3 (diff) | |
| download | linux-ed01fee283a067c72b2d6500046080dbc1bb9dae.tar.xz linux-ed01fee283a067c72b2d6500046080dbc1bb9dae.zip | |
nvme-fabrics: only reserve a single tag
Fabrics drivers currently reserve two tags on the admin queue. But
given that the connect command is only run on a freshly created queue
or after all commands have been force aborted we only need to reserve
a single tag.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Diffstat (limited to 'drivers/nvme/host/fabrics.h')
| -rw-r--r-- | drivers/nvme/host/fabrics.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index 733010d2eafd..888b108d87a4 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -19,6 +19,13 @@ #define NVMF_DEF_FAIL_FAST_TMO -1 /* + * Reserved one command for internal usage. This command is used for sending + * the connect command, as well as for the keep alive command on the admin + * queue once live. + */ +#define NVMF_RESERVED_TAGS 1 + +/* * Define a host as seen by the target. We allocate one at boot, but also * allow the override it when creating controllers. This is both to provide * persistence of the Host NQN over multiple boots, and to allow using |