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From e99103602f477c84f31b79779f7544d6e1704593 Mon Sep 17 00:00:00 2001
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From: Michael Guralnik <michaelgur@nvidia.com>
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Date: Mon, 19 Oct 2020 09:00:56 +0300
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Subject: [PATCH] mlx5: Fix wqe size parameter in wqe signature calculation
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[ Upstream commit 8cde184624d192f7cd61247eec92a3a9b4ba7c7f ]
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WQE signature calculation requires passing the size of the WQE as a
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parameter.
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Current code passes the qpn_ds field as the WQE size which is wrong.
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Fixing to extract from the qpn_ds the WQE size in bytes and use it for
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the signature calculations.
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Fixes: 8c4791ae2395 ("libmlx5: First version of libmlx5")
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Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
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Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
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Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
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---
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providers/mlx5/qp.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/providers/mlx5/qp.c b/providers/mlx5/qp.c
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index 077346d63137..13d7bcccc39d 100644
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--- a/providers/mlx5/qp.c
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+++ b/providers/mlx5/qp.c
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@@ -368,7 +368,7 @@ static int set_data_inl_seg(struct mlx5_qp *qp, struct ibv_send_wr *wr,
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static uint8_t wq_sig(struct mlx5_wqe_ctrl_seg *ctrl)
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{
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- return calc_sig(ctrl, be32toh(ctrl->qpn_ds));
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+ return calc_sig(ctrl, (be32toh(ctrl->qpn_ds) & 0x3f) << 4);
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}
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#ifdef MLX5_DEBUG
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--
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2.25.4
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