diff options
| author | Johannes Thumshirn <jthumshirn@suse.de> | 2017-07-14 15:36:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-16 09:52:32 +0200 |
| commit | 1e38f8e9864f2c52775743694f0517c6bd276d83 (patch) | |
| tree | 8258895ec835df93dcc1df5697af91a3de6fc20f | |
| parent | 077c9e26bb0b3ab72d987837d9297fefd7ec3cf4 (diff) | |
nvmet: Move serial number from controller to subsystem
commit 2e7f5d2af2155084c6f7c86328d36e698cd84954 upstream.
The NVMe specification defines the serial number as:
"Serial Number (SN): Contains the serial number for the NVM subsystem
that is assigned by the vendor as an ASCII string. Refer to section
7.10 for unique identifier requirements. Refer to section 1.5 for ASCII
string requirements"
So move it from the controller to the subsystem, where it belongs.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nvme/target/admin-cmd.c | 2 | ||||
| -rw-r--r-- | drivers/nvme/target/core.c | 5 | ||||
| -rw-r--r-- | drivers/nvme/target/nvmet.h | 2 |
3 files changed, 4 insertions, 5 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index f791d46fe50f..347a1ecb1f23 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -183,7 +183,7 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) id->ssvid = 0; memset(id->sn, ' ', sizeof(id->sn)); - snprintf(id->sn, sizeof(id->sn), "%llx", ctrl->serial); + snprintf(id->sn, sizeof(id->sn), "%llx", ctrl->subsys->serial); memset(id->mn, ' ', sizeof(id->mn)); strncpy((char *)id->mn, "Linux", sizeof(id->mn)); diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 3a044922b048..64b40a12abcf 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -743,9 +743,6 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn, memcpy(ctrl->subsysnqn, subsysnqn, NVMF_NQN_SIZE); memcpy(ctrl->hostnqn, hostnqn, NVMF_NQN_SIZE); - /* generate a random serial number as our controllers are ephemeral: */ - get_random_bytes(&ctrl->serial, sizeof(ctrl->serial)); - kref_init(&ctrl->ref); ctrl->subsys = subsys; @@ -904,6 +901,8 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn, return NULL; subsys->ver = NVME_VS(1, 2, 1); /* NVMe 1.2.1 */ + /* generate a random serial number as our controllers are ephemeral: */ + get_random_bytes(&subsys->serial, sizeof(subsys->serial)); switch (type) { case NVME_NQN_NVME: diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 26b87dc843d2..0bc530cdf2b4 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -110,7 +110,6 @@ struct nvmet_ctrl { struct mutex lock; u64 cap; - u64 serial; u32 cc; u32 csts; @@ -151,6 +150,7 @@ struct nvmet_subsys { u16 max_qid; u64 ver; + u64 serial; char *subsysnqn; struct config_group group; |