From patchwork Thu Feb 15 03:04:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Choong Yong Liang X-Patchwork-Id: 13557288 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 788EB8C1E; Thu, 15 Feb 2024 03:07:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707966459; cv=none; b=R4/yTjGaZ0K4dbyoLRPJgrK/tlbHpCbwZ/AnL8cACrAuKCE+QGOjiuDreepMZYvmRna3SnBizNOJnE257NH2v8vsKjHHkVQPqS92ltGiEyZOIx7vUx6FDVYHh5pW0qNyujJlWI8pv8J9nnoRElESinMoxl9IWkaa5j5sGyzV9xE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707966459; c=relaxed/simple; bh=Id7jaa6k0BX7PLQJS3cBe6qIs2K9RSyvcFT8QOa3qkE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=UpQA4hHPZXNyohAs/NxgeJLwzqMEdlsjObqZW2Bi/lbHirWAC2FqNFNDfnoWis9KE87j+kBzhAbiv05h5qgdIQocub68sun07KPxrNk2keltIY1uZmIv1LB/pKTgIC/umnH1uUex1w+6NKoyhvhGA+TTMsnGVAgsATlSE/brhus= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=JHe5034D; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="JHe5034D" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1707966458; x=1739502458; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Id7jaa6k0BX7PLQJS3cBe6qIs2K9RSyvcFT8QOa3qkE=; b=JHe5034DGy5+/NTfiQ+rcMVtiGInq6FV40vtQMCJ4K+BbzD6suj/hiIS QQDv7H4Wd9aoMQxN2e0vZTeBAF1IAeDh/BlVCVu9JP/hoKGWr0Lk8/pSV /8JAgRRMQWDO4oKMvAxf75/y154zDtQrCcoAayfcvLVEFEZwMY/D4rIgu TjnA+hPffMPRMym1g2CI8tE5on7GWlAFsobwpi7tOjrnbuSXDmGyal+o0 PV6dOdNDVQD0fq42zORh8oU75HWpzuM4tl1GjcvmDOktMuKUVTW+L8erT 19KBesVneWJcBN942puWCa0kgWVQbm+ZfR9klckCUXfAXAsKvi0ipQxco Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10984"; a="19461225" X-IronPort-AV: E=Sophos;i="6.06,161,1705392000"; d="scan'208";a="19461225" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Feb 2024 19:07:37 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,161,1705392000"; d="scan'208";a="3385660" Received: from yongliang-ubuntu20-ilbpg12.png.intel.com ([10.88.229.33]) by fmviesa009.fm.intel.com with ESMTP; 14 Feb 2024 19:07:29 -0800 From: Choong Yong Liang To: Rajneesh Bhardwaj , David E Box , Hans de Goede , Mark Gross , Alexandre Torgue , Jose Abreu , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Richard Cochran , Russell King , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Andrew Lunn , Heiner Kallweit , Philipp Zabel Cc: Andrew Halaney , Serge Semin , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, platform-driver-x86@vger.kernel.org, linux-hwmon@vger.kernel.org, bpf@vger.kernel.org, Voon Wei Feng , Michael Sit Wei Hong , Lai Peter Jun Ann , Abdul Rahim Faizal Subject: [PATCH net-next v5 1/9] net: phylink: provide mac_get_pcs_neg_mode() function Date: Thu, 15 Feb 2024 11:04:51 +0800 Message-Id: <20240215030500.3067426-2-yong.liang.choong@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240215030500.3067426-1-yong.liang.choong@linux.intel.com> References: <20240215030500.3067426-1-yong.liang.choong@linux.intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Phylink invokes the 'mac_get_pcs_neg_mode' function during interface mode switching and initial startup. This function is optional; if 'phylink_pcs_neg_mode' fails to accurately reflect the current PCS negotiation mode, the MAC driver can determine the mode based on the interface mode, current link negotiation mode, and advertising link mode. For instance, if the interface switches from 2500baseX to SGMII mode, and the current link mode is MLO_AN_PHY, calling 'phylink_pcs_neg_mode' would yield PHYLINK_PCS_NEG_OUTBAND. Since the MAC and PCS driver require PHYLINK_PCS_NEG_INBAND_ENABLED, the 'mac_get_pcs_neg_mode' function will calculate the mode based on the interface, current link negotiation mode, and advertising link mode, returning PHYLINK_PCS_NEG_OUTBAND to enable the PCS to configure the correct settings. Signed-off-by: Choong Yong Liang --- drivers/net/phy/phylink.c | 14 +++++++++++--- include/linux/phylink.h | 5 +++++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 503fd7c40523..b38b39a6d1f0 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -1151,9 +1151,17 @@ static void phylink_major_config(struct phylink *pl, bool restart, phylink_dbg(pl, "major config %s\n", phy_modes(state->interface)); - pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode, - state->interface, - state->advertising); + if (pl->mac_ops->mac_get_pcs_neg_mode) { + pl->pcs_neg_mode = pl->mac_ops->mac_get_pcs_neg_mode + (pl->config, + pl->cur_link_an_mode, + state->interface, + state->advertising); + } else { + pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode, + state->interface, + state->advertising); + } if (pl->using_mac_select_pcs) { pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface); diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 6ba411732a0d..f0a6c00e8dab 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -168,6 +168,7 @@ void phylink_limit_mac_speed(struct phylink_config *config, u32 max_speed); * @mac_finish: finish a major reconfiguration of the interface. * @mac_link_down: take the link down. * @mac_link_up: allow the link to come up. + * @mac_get_pcs_neg_mode: Get PCS negotiation mode for interface mode. * * The individual methods are described more fully below. */ @@ -188,6 +189,10 @@ struct phylink_mac_ops { struct phy_device *phy, unsigned int mode, phy_interface_t interface, int speed, int duplex, bool tx_pause, bool rx_pause); + unsigned int (*mac_get_pcs_neg_mode)(struct phylink_config *config, + unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising); }; #if 0 /* For kernel-doc purposes only. */