From patchwork Fri Aug 4 08:45:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Choong Yong Liang X-Patchwork-Id: 13341502 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 6727BC001DB for ; Fri, 4 Aug 2023 08:47:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229636AbjHDIrf (ORCPT ); Fri, 4 Aug 2023 04:47:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41940 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229689AbjHDIrU (ORCPT ); Fri, 4 Aug 2023 04:47:20 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6176749E8; Fri, 4 Aug 2023 01:47:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1691138839; x=1722674839; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kWetqXl79fvZjr8fdZOpXU/jjIveLKoNgaP1hXW6Rng=; b=HMrQXo+f15DXDASgEiTq8cm9Xboeg75ag2C1eSZaAjx9yDc4NfINlWD3 4kYhaubwP9Xh3tLUpVCDLX3jp4VXLdW1vVzsWzW6mU5YEO7js3enHPtlU 9ThhpEEXRvV8LVLTjwaJ1LlyFAmD7BosDWNGxizFfDWleIbsL+jyB2+K/ INey8Sf1IdjCe5O4bwQNUjMC4jGXpkHKwfrfXR9VlMp+9F68RLMHM46/W MLu3xw9qCqnH3Q3bixw2Yn1TM1fNGfotsRVURm9g0BE+Ha0WP40q8em6Y 74mMX0iqbnhB4sfBl0dDAvp+bXGdg8WYN/23UKYnxOgSO9MbzZyjOXWlz g==; X-IronPort-AV: E=McAfee;i="6600,9927,10791"; a="456478430" X-IronPort-AV: E=Sophos;i="6.01,254,1684825200"; d="scan'208";a="456478430" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2023 01:47:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10791"; a="765018035" X-IronPort-AV: E=Sophos;i="6.01,254,1684825200"; d="scan'208";a="765018035" Received: from yongliang-ubuntu20-ilbpg12.png.intel.com ([10.88.229.33]) by orsmga001.jf.intel.com with ESMTP; 04 Aug 2023 01:47:08 -0700 From: Choong Yong Liang To: Rajneesh Bhardwaj , David E Box , Hans de Goede , Mark Gross , Jose Abreu , Andrew Lunn , Heiner Kallweit , Russell King , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , =?utf-8?q?Marek_Beh=C3=BAn?= , Jean Delvare , Guenter Roeck , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Richard Cochran , Philipp Zabel , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Wong Vee Khee , Jon Hunter , Jesse Brandeburg , Revanth Kumar Uppala , Shenwei Wang , Andrey Konovalov , Jochen Henneberg Cc: 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 , Tan Tee Min , Michael Sit Wei Hong , Lai Peter Jun Ann Subject: [PATCH net-next v2 2/5] net: pcs: xpcs: combine C37 SGMII AN and 2500BASEX for Intel mGbE controller Date: Fri, 4 Aug 2023 16:45:24 +0800 Message-Id: <20230804084527.2082302-3-yong.liang.choong@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230804084527.2082302-1-yong.liang.choong@linux.intel.com> References: <20230804084527.2082302-1-yong.liang.choong@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org From: "Tan, Tee Min" This commit introduces xpcs_sgmii_2500basex_features[] that combine xpcs_sgmii_features[] and xpcs_2500basex_features[] for Intel mGbE controller that desire to interchange the speed mode of 10/100/1000/2500Mbps at runtime. Also, we introduce xpcs_config_aneg_c37_sgmii_2500basex() function which is called by the xpcs_do_config() with the new AN mode: DW_SGMII_2500BASEX, and this new function will proceed next-level calling to perform C37 SGMII AN/2500BASEX configuration based on the PHY interface updated by PHY driver. Signed-off-by: Tan, Tee Min Signed-off-by: Choong Yong Liang --- drivers/net/pcs/pcs-xpcs.c | 72 ++++++++++++++++++++++++++++++------ include/linux/pcs/pcs-xpcs.h | 1 + 2 files changed, 62 insertions(+), 11 deletions(-) diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index 44b037646865..b35767f65d62 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -104,6 +104,21 @@ static const int xpcs_2500basex_features[] = { __ETHTOOL_LINK_MODE_MASK_NBITS, }; +static const int xpcs_sgmii_2500basex_features[] = { + ETHTOOL_LINK_MODE_Pause_BIT, + ETHTOOL_LINK_MODE_Asym_Pause_BIT, + ETHTOOL_LINK_MODE_Autoneg_BIT, + ETHTOOL_LINK_MODE_10baseT_Half_BIT, + ETHTOOL_LINK_MODE_10baseT_Full_BIT, + ETHTOOL_LINK_MODE_100baseT_Half_BIT, + ETHTOOL_LINK_MODE_100baseT_Full_BIT, + ETHTOOL_LINK_MODE_1000baseT_Half_BIT, + ETHTOOL_LINK_MODE_1000baseT_Full_BIT, + ETHTOOL_LINK_MODE_2500baseX_Full_BIT, + ETHTOOL_LINK_MODE_2500baseT_Full_BIT, + __ETHTOOL_LINK_MODE_MASK_NBITS, +}; + static const phy_interface_t xpcs_usxgmii_interfaces[] = { PHY_INTERFACE_MODE_USXGMII, }; @@ -133,6 +148,12 @@ static const phy_interface_t xpcs_2500basex_interfaces[] = { PHY_INTERFACE_MODE_MAX, }; +static const phy_interface_t xpcs_sgmii_2500basex_interfaces[] = { + PHY_INTERFACE_MODE_SGMII, + PHY_INTERFACE_MODE_2500BASEX, + PHY_INTERFACE_MODE_MAX, +}; + enum { DW_XPCS_USXGMII, DW_XPCS_10GKR, @@ -141,6 +162,7 @@ enum { DW_XPCS_SGMII, DW_XPCS_1000BASEX, DW_XPCS_2500BASEX, + DW_XPCS_SGMII_2500BASEX, DW_XPCS_INTERFACE_MAX, }; @@ -267,6 +289,7 @@ static int xpcs_soft_reset(struct dw_xpcs *xpcs, case DW_AN_C37_SGMII: case DW_2500BASEX: case DW_AN_C37_1000BASEX: + case DW_SGMII_2500BASEX: dev = MDIO_MMD_VEND2; break; default: @@ -713,6 +736,8 @@ static int xpcs_config_aneg_c37_sgmii(struct dw_xpcs *xpcs, else ret &= ~DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW; + /* Disable 2.5G GMII for SGMII C37 mode */ + ret &= ~DW_VR_MII_DIG_CTRL1_2G5_EN; ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1, ret); if (ret < 0) return ret; @@ -808,6 +833,26 @@ static int xpcs_config_2500basex(struct dw_xpcs *xpcs) return xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL, ret); } +static int xpcs_config_aneg_c37_sgmii_2500basex(struct dw_xpcs *xpcs, + unsigned int neg_mode, + phy_interface_t interface) +{ + int ret = -EOPNOTSUPP; + + switch (interface) { + case PHY_INTERFACE_MODE_SGMII: + ret = xpcs_config_aneg_c37_sgmii(xpcs, neg_mode); + break; + case PHY_INTERFACE_MODE_2500BASEX: + ret = xpcs_config_2500basex(xpcs); + break; + default: + break; + } + + return ret; +} + int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface, const unsigned long *advertising, unsigned int neg_mode) { @@ -844,6 +889,12 @@ int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface, if (ret) return ret; break; + case DW_SGMII_2500BASEX: + ret = xpcs_config_aneg_c37_sgmii_2500basex(xpcs, neg_mode, + interface); + if (ret) + return ret; + break; default: return -1; } @@ -1030,6 +1081,11 @@ static void xpcs_get_state(struct phylink_pcs *pcs, } break; case DW_AN_C37_SGMII: + case DW_SGMII_2500BASEX: + /* 2500BASEX is not supported for in-band AN mode. */ + if (state->interface == PHY_INTERFACE_MODE_2500BASEX) + break; + ret = xpcs_get_state_c37_sgmii(xpcs, state); if (ret) { pr_err("xpcs_get_state_c37_sgmii returned %pe\n", @@ -1182,23 +1238,17 @@ static const struct xpcs_compat synopsys_xpcs_compat[DW_XPCS_INTERFACE_MAX] = { .num_interfaces = ARRAY_SIZE(xpcs_10gbaser_interfaces), .an_mode = DW_10GBASER, }, - [DW_XPCS_SGMII] = { - .supported = xpcs_sgmii_features, - .interface = xpcs_sgmii_interfaces, - .num_interfaces = ARRAY_SIZE(xpcs_sgmii_interfaces), - .an_mode = DW_AN_C37_SGMII, - }, [DW_XPCS_1000BASEX] = { .supported = xpcs_1000basex_features, .interface = xpcs_1000basex_interfaces, .num_interfaces = ARRAY_SIZE(xpcs_1000basex_interfaces), .an_mode = DW_AN_C37_1000BASEX, }, - [DW_XPCS_2500BASEX] = { - .supported = xpcs_2500basex_features, - .interface = xpcs_2500basex_interfaces, - .num_interfaces = ARRAY_SIZE(xpcs_2500basex_interfaces), - .an_mode = DW_2500BASEX, + [DW_XPCS_SGMII_2500BASEX] = { + .supported = xpcs_sgmii_2500basex_features, + .interface = xpcs_sgmii_2500basex_interfaces, + .num_interfaces = ARRAY_SIZE(xpcs_sgmii_2500basex_features), + .an_mode = DW_SGMII_2500BASEX, }, }; diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h index ff99cf7a5d0d..a1625e1c5875 100644 --- a/include/linux/pcs/pcs-xpcs.h +++ b/include/linux/pcs/pcs-xpcs.h @@ -19,6 +19,7 @@ #define DW_2500BASEX 3 #define DW_AN_C37_1000BASEX 4 #define DW_10GBASER 5 +#define DW_SGMII_2500BASEX 6 struct xpcs_id;