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nvme-fc: check sgl supported by target

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

Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Max Gurtovoy 2021-03-30 23:01:20 +00:00 committed by Christoph Hellwig
parent 73ffcefcfc
commit 8df1bff57c
1 changed files with 5 additions and 0 deletions
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5
drivers/nvme/host/fc.c
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@ -3099,6 +3099,11 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
}
/* FC-NVME supports normal SGL Data Block Descriptors */
if (!(ctrl->ctrl.sgls & ((1 << 0) | (1 << 1)))) {
dev_err(ctrl->ctrl.device,
"Mandatory sgls are not supported!\n");
goto out_disconnect_admin_queue;
}
if (opts->queue_size > ctrl->ctrl.maxcmd) {
/* warn if maxcmd is lower than queue_size */