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 X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14013C433DF for ; Mon, 3 Aug 2020 12:44:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD1012054F for ; Mon, 3 Aug 2020 12:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596458643; bh=1lSb22xJIhaeGJv+HCgH8xtusIhyGxWIAiMO+X1TXrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0tH31A08QJM65FfW4QBTYX5XFZjPdWOSin/IhgEGZNoSejZSk466LyjXQDdIAj4Cc r5/zomuYlwweZd2n14QfiE7yvs/neQ1QvpMCngYvTe2H+UKkyR2T038BCNkQ41n22l 7it8EQGKCKPVrFKLcLULbEm28LhqdTGzryWJID18= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728764AbgHCM2m (ORCPT ); Mon, 3 Aug 2020 08:28:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:54870 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728754AbgHCM2k (ORCPT ); Mon, 3 Aug 2020 08:28:40 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E00B8204EC; Mon, 3 Aug 2020 12:28:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596457719; bh=1lSb22xJIhaeGJv+HCgH8xtusIhyGxWIAiMO+X1TXrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QkVfI6cccwxhot0dzdYVx5gVbDTRFhw/DZEWHgMvjTCQW0bo4rbXgQ64smb2X2U/t FkrR8bukW//YMe8lr9gLrpTxJpXhPTVdTshF+InqcoRF/yP+0Bd6ITMtfH+CP89QK5 EQbJYIFrmQVLMwKVxPDxll2WX77LxUpgzYPqsahI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eran Ben Elisha , Ariel Levkovich , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.4 49/90] net/mlx5: Verify Hardware supports requested ptp function on a given pin Date: Mon, 3 Aug 2020 14:19:11 +0200 Message-Id: <20200803121859.997229384@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200803121857.546052424@linuxfoundation.org> References: <20200803121857.546052424@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Eran Ben Elisha [ Upstream commit 071995c877a8646209d55ff8edddd2b054e7424c ] Fix a bug where driver did not verify Hardware pin capabilities for PTP functions. Fixes: ee7f12205abc ("net/mlx5e: Implement 1PPS support") Signed-off-by: Eran Ben Elisha Reviewed-by: Ariel Levkovich Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- .../ethernet/mellanox/mlx5/core/lib/clock.c | 23 ++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c index 43f97601b5000..75fc283cacc36 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c @@ -388,10 +388,31 @@ static int mlx5_ptp_enable(struct ptp_clock_info *ptp, return 0; } +enum { + MLX5_MTPPS_REG_CAP_PIN_X_MODE_SUPPORT_PPS_IN = BIT(0), + MLX5_MTPPS_REG_CAP_PIN_X_MODE_SUPPORT_PPS_OUT = BIT(1), +}; + static int mlx5_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin, enum ptp_pin_function func, unsigned int chan) { - return (func == PTP_PF_PHYSYNC) ? -EOPNOTSUPP : 0; + struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, + ptp_info); + + switch (func) { + case PTP_PF_NONE: + return 0; + case PTP_PF_EXTTS: + return !(clock->pps_info.pin_caps[pin] & + MLX5_MTPPS_REG_CAP_PIN_X_MODE_SUPPORT_PPS_IN); + case PTP_PF_PEROUT: + return !(clock->pps_info.pin_caps[pin] & + MLX5_MTPPS_REG_CAP_PIN_X_MODE_SUPPORT_PPS_OUT); + default: + return -EOPNOTSUPP; + } + + return -EOPNOTSUPP; } static const struct ptp_clock_info mlx5_ptp_clock_info = { -- 2.25.1