Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 112/138] IB/mlx4: Fix the SQ size of an RC QP | Date | Thu, 18 Aug 2016 15:58:42 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Yishai Hadas <yishaih@mellanox.com>
commit f2940e2c76bb554a7fbdd28ca5b90904117a9e96 upstream.
When calculating the required size of an RC QP send queue, leave enough space for masked atomic operations, which require more space than "regular" atomic operation.
Fixes: 6fa8f719844b ("IB/mlx4: Add support for masked atomic operations") Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/infiniband/hw/mlx4/qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -357,7 +357,7 @@ static int send_wqe_overhead(enum mlx4_i sizeof (struct mlx4_wqe_raddr_seg); case MLX4_IB_QPT_RC: return sizeof (struct mlx4_wqe_ctrl_seg) + - sizeof (struct mlx4_wqe_atomic_seg) + + sizeof (struct mlx4_wqe_masked_atomic_seg) + sizeof (struct mlx4_wqe_raddr_seg); case MLX4_IB_QPT_SMI: case MLX4_IB_QPT_GSI:
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