[PATCH] nvme-rdma: send cntlid in the RDMA_CM_REQUEST Private Data

Niklas Cassel cassel at kernel.org
Mon Aug 26 02:27:25 PDT 2024


On Thu, Aug 15, 2024 at 10:11:31PM +0200, Niklas Cassel wrote:
> 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 at kernel.org>
> ---
>  drivers/nvme/host/rdma.c  | 2 ++
>  include/linux/nvme-rdma.h | 6 +++++-
>  2 files changed, 7 insertions(+), 1 deletion(-)

Hello NVMe maintainers,

is there any chance of getting this picked up?

Have a nice day!

Kind regards,
Niklas



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