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| author |   Hannes Reinecke <hare@suse.de> | 2021-09-22 08:35:21 +0200 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2021-10-20 19:16:02 +0200 |
| commit | a294711ed5123f757ed8ed2f103c851b8ee416c9 (patch) | |
| tree | fcb3968a5d09620f3fc7a926f4a0c8c82ee9eeee /drivers/nvme | |
| parent | nvme: add CNTRLTYPE definitions for 'identify controller' (diff) | |
| download | linux-dev-a294711ed5123f757ed8ed2f103c851b8ee416c9.tar.xz linux-dev-a294711ed5123f757ed8ed2f103c851b8ee416c9.zip | |
nvmet: add nvmet_is_disc_subsys() helper
Add a helper function to determine if a given subsystem is a discovery
subsystem.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/admin-cmd.c | 2 | ||||
| -rw-r--r-- | drivers/nvme/target/core.c | 6 | ||||
| -rw-r--r-- | drivers/nvme/target/nvmet.h | 5 |
3 files changed, 9 insertions, 4 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index aa6d84d8848e..b653ea4244fe 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -1008,7 +1008,7 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req) if (nvme_is_fabrics(cmd)) return nvmet_parse_fabrics_cmd(req); - if (nvmet_req_subsys(req)->type == NVME_NQN_DISC) + if (nvmet_is_disc_subsys(nvmet_req_subsys(req))) return nvmet_parse_discovery_cmd(req); ret = nvmet_check_ctrl_status(req); diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index e1f41436ea2c..d844fb9ef2eb 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -1140,7 +1140,7 @@ static void nvmet_start_ctrl(struct nvmet_ctrl *ctrl) * should verify iosqes,iocqes are zeroed, however that * would break backwards compatibility, so don't enforce it. */ - if (ctrl->subsys->type != NVME_NQN_DISC && + if (!nvmet_is_disc_subsys(ctrl->subsys) && (nvmet_cc_iosqes(ctrl->cc) != NVME_NVM_IOSQES || nvmet_cc_iocqes(ctrl->cc) != NVME_NVM_IOCQES)) { ctrl->csts = NVME_CSTS_CFS; @@ -1281,7 +1281,7 @@ bool nvmet_host_allowed(struct nvmet_subsys *subsys, const char *hostnqn) if (subsys->allow_any_host) return true; - if (subsys->type == NVME_NQN_DISC) /* allow all access to disc subsys */ + if (nvmet_is_disc_subsys(subsys)) /* allow all access to disc subsys */ return true; list_for_each_entry(p, &subsys->hosts, entry) { @@ -1413,7 +1413,7 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn, * Discovery controllers may use some arbitrary high value * in order to cleanup stale discovery sessions */ - if ((ctrl->subsys->type == NVME_NQN_DISC) && !kato) + if (nvmet_is_disc_subsys(ctrl->subsys) && !kato) kato = NVMET_DISC_KATO_MS; /* keep-alive timeout in seconds */ diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index f8e0ee131dc6..f31dcc4fb1a2 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -577,6 +577,11 @@ static inline struct nvmet_subsys *nvmet_req_subsys(struct nvmet_req *req) return req->sq->ctrl->subsys; } +static inline bool nvmet_is_disc_subsys(struct nvmet_subsys *subsys) +{ + return subsys->type == NVME_NQN_DISC; +} + #ifdef CONFIG_NVME_TARGET_PASSTHRU void nvmet_passthru_subsys_free(struct nvmet_subsys *subsys); int nvmet_passthru_ctrl_enable(struct nvmet_subsys *subsys); |