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Commit 72d8a013 authored by Naga Irrinki's avatar Naga Irrinki Committed by Doug Ledford
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RDMA/ocrdma: Fail connection for MTU lesser than 512 



HW currently restricts the IB MTU range between 512 and 4096.
Fail connection for MTUs lesser than 512.

Signed-off-by: default avatarNaga Irrinki <naga.irrinki@avagotech.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent d27b2f15

drivers/infiniband/hw/ocrdma/ocrdma_hw.c

+3 −1
Original line number Diff line number Diff line
@@ -2534,8 +2534,10 @@ static int ocrdma_set_qp_params(struct ocrdma_qp *qp, 
		cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID;

	}

	if (attr_mask & IB_QP_PATH_MTU) {

		if (attrs->path_mtu < IB_MTU_256 ||

		if (attrs->path_mtu < IB_MTU_512 ||

		    attrs->path_mtu > IB_MTU_4096) {

			pr_err("ocrdma%d: IB MTU %d is not supported\n",

			       dev->id, ib_mtu_enum_to_int(attrs->path_mtu));

			status = -EINVAL;

			goto pmtu_err;

		}