From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH rdma-rc 05/12] IB/mlx5: Validate requested RQT size Date: Thu, 27 Oct 2016 16:36:40 +0300 Message-ID: <1477575407-20562-6-git-send-email-leon@kernel.org> References: <1477575407-20562-1-git-send-email-leon@kernel.org> Return-path: In-Reply-To: <1477575407-20562-1-git-send-email-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Maor Gottlieb List-Id: linux-rdma@vger.kernel.org From: Maor Gottlieb Validate that the requested size of RQT is supported by firmware. Fixes: c5f9092936fe ('IB/mlx5: Add Receive Work Queue Indirection table operations') Signed-off-by: Maor Gottlieb Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/qp.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 5bdf20c..047f7e4 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -4817,6 +4817,14 @@ struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device, udata->inlen)) return ERR_PTR(-EOPNOTSUPP); + if (init_attr->log_ind_tbl_size > + MLX5_CAP_GEN(dev->mdev, log_max_rqt_size)) { + mlx5_ib_dbg(dev, "log_ind_tbl_size = %d is bigger than supported = %d\n", + init_attr->log_ind_tbl_size, + MLX5_CAP_GEN(dev->mdev, log_max_rqt_size)); + return ERR_PTR(-EINVAL); + } + min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved); if (udata->outlen && udata->outlen < min_resp_len) return ERR_PTR(-EINVAL); -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html