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Date: Thu, 18 Aug 2016 15:58:42 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Yishai Hadas <yishaih@...lanox.com>, Jack Morgenstein <jackm@...lanox.co.il>, Eran Ben Elisha <eranbe@...lanox.com>, Leon Romanovsky <leon@...nel.org>, Doug Ledford <dledford@...hat.com> Subject: [PATCH 4.4 112/138] IB/mlx4: Fix the SQ size of an RC QP 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yishai Hadas <yishaih@...lanox.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@...lanox.com> Reviewed-by: Jack Morgenstein <jackm@...lanox.co.il> Reviewed-by: Eran Ben Elisha <eranbe@...lanox.com> Signed-off-by: Leon Romanovsky <leon@...nel.org> Signed-off-by: Doug Ledford <dledford@...hat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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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