From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35570 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752791AbeBBRC4 (ORCPT ); Fri, 2 Feb 2018 12:02:56 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Max Gurtovoy , Leon Romanovsky , Christoph Hellwig , Doug Ledford , Marta Rybczynska Subject: [PATCH 4.9 02/86] net/mlx5: Define interface bits for fencing UMR wqe Date: Fri, 2 Feb 2018 17:57:22 +0100 Message-Id: <20180202140822.876617777@linuxfoundation.org> In-Reply-To: <20180202140822.679101338@linuxfoundation.org> References: <20180202140822.679101338@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Max Gurtovoy commit 1410a90ae449061b7e1ae19d275148f36948801b upstream. HW can implement UMR wqe re-transmission in various ways. Thus, add HCA cap to distinguish the needed fence for UMR to make sure that the wqe wouldn't fail on mkey checks. Signed-off-by: Max Gurtovoy Acked-by: Leon Romanovsky Reviewed-by: Christoph Hellwig Signed-off-by: Doug Ledford Cc: Marta Rybczynska Signed-off-by: Greg Kroah-Hartman --- include/linux/mlx5/mlx5_ifc.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -737,6 +737,12 @@ enum { MLX5_CAP_PORT_TYPE_ETH = 0x1, }; +enum { + MLX5_CAP_UMR_FENCE_STRONG = 0x0, + MLX5_CAP_UMR_FENCE_SMALL = 0x1, + MLX5_CAP_UMR_FENCE_NONE = 0x2, +}; + struct mlx5_ifc_cmd_hca_cap_bits { u8 reserved_at_0[0x80]; @@ -838,7 +844,9 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 striding_rq[0x1]; u8 reserved_at_201[0x2]; u8 ipoib_basic_offloads[0x1]; - u8 reserved_at_205[0xa]; + u8 reserved_at_205[0x5]; + u8 umr_fence[0x2]; + u8 reserved_at_20c[0x3]; u8 drain_sigerr[0x1]; u8 cmdif_checksum[0x2]; u8 sigerr_cqe[0x1];