Commit 73ffcefc authored by Max Gurtovoy's avatar Max Gurtovoy Committed by Christoph Hellwig
Browse files

nvme-tcp: check sgl supported by target 



SGLs support is mandatory for NVMe/tcp, make sure that the target is
aligned to the specification.

Signed-off-by: default avatarMax Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: default avatarChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent d8e7b462

drivers/nvme/host/tcp.c

+5 −0
Original line number Diff line number Diff line
@@ -1966,6 +1966,11 @@ static int nvme_tcp_setup_ctrl(struct nvme_ctrl *ctrl, bool new) 
		goto destroy_admin;

	}



	if (!(ctrl->sgls & ((1 << 0) | (1 << 1)))) {

		dev_err(ctrl->device, "Mandatory sgls are not supported!\n");

		goto destroy_admin;

	}



	if (opts->queue_size > ctrl->sqsize + 1)

		dev_warn(ctrl->device,

			"queue_size %zu > ctrl sqsize %u, clamping down\n",