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 BD184C77B7E for ; Sun, 28 May 2023 19:33:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230297AbjE1TdU (ORCPT ); Sun, 28 May 2023 15:33:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230295AbjE1TdU (ORCPT ); Sun, 28 May 2023 15:33:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0C3FA3 for ; Sun, 28 May 2023 12:33:18 -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 8754D61DBC for ; Sun, 28 May 2023 19:33:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A58F0C433D2; Sun, 28 May 2023 19:33:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685302398; bh=O/nfokxhGiRfmbxJvWMR67JXBTJAIl2jqAV6KaJEGXc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t2CZwd+2TLYqT+35lz8rjf9HSAS0oqiYCpr7MiK8+5aijFGpx4nZhAQTtolg0qfje KHgFnq/KyIVWOgeO3X6rDTTVVxRjAPMY6tdAjziOLafFQyd+QLVgznuCG3Wj1RsoYs h5uZa/pyiqijh/wwNyL/hqho8Ikb5TZpwCeTKQfk= 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 6.3 114/127] net/mlx5: DR, Check force-loopback RC QP capability independently from RoCE Date: Sun, 28 May 2023 20:11:30 +0100 Message-Id: <20230528190839.963226138@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190836.161231414@linuxfoundation.org> References: <20230528190836.161231414@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 @@ -1679,7 +1679,9 @@ 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 port_selection_cap[0x1]; u8 reserved_at_248[0x1];