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| author |   James Smart <jsmart2021@gmail.com> | 2019-05-14 14:58:02 -0700 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2019-06-21 11:08:37 +0200 |
| commit | 9d09dd8d7626b9124ce4bc081aabcb0590173b27 (patch) | |
| tree | 59ef879fa6298a61c586c2fc5b3b8533fe460350 /drivers/nvme/target/nvmet.h | |
| parent | cgroup: export css_next_descendant_pre for bfq (diff) | |
| download | linux-dev-9d09dd8d7626b9124ce4bc081aabcb0590173b27.tar.xz linux-dev-9d09dd8d7626b9124ce4bc081aabcb0590173b27.zip | |
nvmet: add transport discovery change op
Some transports, such as FC-NVME, support discovery controller change
events without the use of a persistent discovery controller. FC receives
events via RSCN from the FC Fabric Controller or subsystem FC port.
This patch adds a nvmet transport op that is called whenever a
discovery change event occurs in the nvmet layer.
To facilitate the callback without adding another layer to cross into
core.c to reference the transport ops, the port structure snapshots
the transport ops when the port is enabled and clears them when disabled.
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/nvme/target/nvmet.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index c25d88fc9dec..dc270944bb25 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -140,6 +140,7 @@ struct nvmet_port { void *priv; bool enabled; int inline_data_size; + const struct nvmet_fabrics_ops *tr_ops; }; static inline struct nvmet_port *to_nvmet_port(struct config_item *item) @@ -277,6 +278,7 @@ struct nvmet_fabrics_ops { void (*disc_traddr)(struct nvmet_req *req, struct nvmet_port *port, char *traddr); u16 (*install_queue)(struct nvmet_sq *nvme_sq); + void (*discovery_chg)(struct nvmet_port *port); }; #define NVMET_MAX_INLINE_BIOVEC 8 |