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| author | Niklas Cassel <cassel@kernel.org> | 2024-08-15 22:11:31 +0200 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2024-08-26 08:11:19 -0700 |
| commit | 03c3d7c74371a46d967fbf41628874ec04ddda96 (patch) | |
| tree | 6660dd2c16fa55d41338319688937d6de7bd3c23 /include/linux/nvme-rdma.h | |
| parent | ff4a0a4088adc6a37293a9cce25bb56ad2f26a16 (diff) | |
nvme-rdma: send cntlid in the RDMA_CM_REQUEST Private Data
When sending a RDMA_CM_REQUEST, the NVMe RDMA Transport Specification
allows you to populate the cntlid field in the RDMA_CM_REQUEST Private
Data.
The cntlid is returned by the target on completion of the first
RDMA_CM_REQUEST command (which creates the admin queue).
The cntlid field can then be populated by the host when the I/O queues
are created (using additional RDMA_CM_REQUEST commands), such that the
target can perform extra validation for additional RDMA_CM_REQUEST
commands.
This additional error code and error message is also added, such that
nvme_rdma_cm_msg() will display the proper error message if the target
fails the RDMA_CM_REQUEST command because of this extra validation.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'include/linux/nvme-rdma.h')
| -rw-r--r-- | include/linux/nvme-rdma.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/nvme-rdma.h b/include/linux/nvme-rdma.h index eb2f04d636c8..97c5f00b9aa3 100644 --- a/include/linux/nvme-rdma.h +++ b/include/linux/nvme-rdma.h @@ -25,6 +25,7 @@ enum nvme_rdma_cm_status { NVME_RDMA_CM_NO_RSC = 0x06, NVME_RDMA_CM_INVALID_IRD = 0x07, NVME_RDMA_CM_INVALID_ORD = 0x08, + NVME_RDMA_CM_INVALID_CNTLID = 0x09, }; static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status) @@ -46,6 +47,8 @@ static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status) return "invalid IRD"; case NVME_RDMA_CM_INVALID_ORD: return "Invalid ORD"; + case NVME_RDMA_CM_INVALID_CNTLID: + return "invalid controller ID"; default: return "unrecognized reason"; } @@ -64,7 +67,8 @@ struct nvme_rdma_cm_req { __le16 qid; __le16 hrqsize; __le16 hsqsize; - u8 rsvd[24]; + __le16 cntlid; + u8 rsvd[22]; }; /** |