[PATCH 2/2] nvme-fc: check sgl supported by target
From: Max Gurtovoy <mgurtovoy@nvidia.com>
Date: 2021-03-30 23:02:15
Subsystem:
nvm express driver, nvm express fc transport drivers, the rest · Maintainers:
Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Justin Tee, Naresh Gottumukkala, Paul Ely, Linus Torvalds
SGLs support is mandatory for NVMe/tcp, make sure that the target is aligned to the specification. Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> --- drivers/nvme/host/fc.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 6ffa8de2a0d7..03032d9b0573 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c@@ -3100,6 +3100,11 @@ 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 */
--
2.25.4
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