From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC50AC77B7C for ; Sun, 28 May 2023 19:50:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231406AbjE1TuI (ORCPT ); Sun, 28 May 2023 15:50:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231366AbjE1TuH (ORCPT ); Sun, 28 May 2023 15:50:07 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D33D39E for ; Sun, 28 May 2023 12:50:06 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 717C762044 for ; Sun, 28 May 2023 19:50:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 74743C433D2; Sun, 28 May 2023 19:50:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685303405; bh=D90cq3eO9uwJcCKf0JHbP8pA8mXhz6vqOoPP+nBkA1Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pfjKi6ubr9A4tUqu8VTQlGMqb/a3lQ82bUef5MXgysCyQd/+TDrV5XA457OIaA7xN bfswNsN1rQwNfd4kzDef7xKrTo2nxGkuDKB5O27V1GsVRkT+vohDOIWtiPMgzFnsF6 svGc186yx4URBmOrBhynAygzqxQwttGgASnCxyJU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Itamar Gozlan , Yevgeny Kliteynik , Saeed Mahameed Subject: [PATCH 5.15 62/69] net/mlx5: DR, Check force-loopback RC QP capability independently from RoCE Date: Sun, 28 May 2023 20:12:22 +0100 Message-Id: <20230528190830.702851285@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190828.358612414@linuxfoundation.org> References: <20230528190828.358612414@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yevgeny Kliteynik commit c7dd225bc224726c22db08e680bf787f60ebdee3 upstream. SW Steering uses RC QP for writing STEs to ICM. This writingis done in LB (loopback), and FL (force-loopback) QP is preferred for performance. FL is available when RoCE is enabled or disabled based on RoCE caps. This patch adds reading of FL capability from HCA caps in addition to the existing reading from RoCE caps, thus fixing the case where we didn't have loopback enabled when RoCE was disabled. Fixes: 7304d603a57a ("net/mlx5: DR, Add support for force-loopback QP") Signed-off-by: Itamar Gozlan Signed-off-by: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c | 4 +++- include/linux/mlx5/mlx5_ifc.h | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c @@ -117,6 +117,8 @@ int mlx5dr_cmd_query_device(struct mlx5_ caps->gvmi = MLX5_CAP_GEN(mdev, vhca_id); caps->flex_protocols = MLX5_CAP_GEN(mdev, flex_parser_protocols); caps->sw_format_ver = MLX5_CAP_GEN(mdev, steering_format_version); + caps->roce_caps.fl_rc_qp_when_roce_disabled = + MLX5_CAP_GEN(mdev, fl_rc_qp_when_roce_disabled); if (MLX5_CAP_GEN(mdev, roce)) { err = dr_cmd_query_nic_vport_roce_en(mdev, 0, &roce_en); @@ -124,7 +126,7 @@ int mlx5dr_cmd_query_device(struct mlx5_ return err; caps->roce_caps.roce_en = roce_en; - caps->roce_caps.fl_rc_qp_when_roce_disabled = + caps->roce_caps.fl_rc_qp_when_roce_disabled |= MLX5_CAP_ROCE(mdev, fl_rc_qp_when_roce_disabled); caps->roce_caps.fl_rc_qp_when_roce_enabled = MLX5_CAP_ROCE(mdev, fl_rc_qp_when_roce_enabled); --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1513,7 +1513,9 @@ struct mlx5_ifc_cmd_hca_cap_bits { u8 rc[0x1]; u8 uar_4k[0x1]; - u8 reserved_at_241[0x9]; + u8 reserved_at_241[0x7]; + u8 fl_rc_qp_when_roce_disabled[0x1]; + u8 regexp_params[0x1]; u8 uar_sz[0x6]; u8 reserved_at_248[0x2]; u8 umem_uid_0[0x1];