From nobody Sat Nov 30 06:32:40 2024 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 1A1901AC885; Wed, 11 Sep 2024 16:15:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726071317; cv=none; b=Cg3NNRJq47wEeN5FDHmhGXhfczCulk7hCo8PtD3dGV2H6PlS0gFh2XWiiWCpEGwJVWogUJ9tu/7Fr7HslNkewDAdhqdernwsoDf2Og4/8rCXKFQQL/4hFtpxiTyV85gKOsxprYcGsQSgtL7DlcaszcZW9YlfTNrs7vQEKXiV3PU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726071317; c=relaxed/simple; bh=ftM+DDnmQmOYnwN5aQVtFV0dJlz1AGJWP+A1i0WPDNQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=sS+sXpWHY+PQNkm9l9X1/kCVlVJF2Zad2t5/XUnNBN2WAPXLaDQ3WK9H+gdbPCBaTm3GEn1ePCR0E5odkxyictuD9yL3IUbKjqupHFi3K1iJYhNjg9F031kxmci4A1hksdNJUw0azzYJ7Fp5FKcnlE76OLSeRZGrr8P23sMlANM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=rEBXGX1N; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="rEBXGX1N" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1726071316; x=1757607316; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ftM+DDnmQmOYnwN5aQVtFV0dJlz1AGJWP+A1i0WPDNQ=; b=rEBXGX1N4OLxZX09J2SWsuc3MdXPWTViQQJAyNFuEZWnkVCemVIXFJLS 1TwvuG+BcTIHUB+lL/q5tcndaILSXePdTZocxFIaD0hLLfPyCvyF4inuU nqPSDAUPwYHf/bKGMHE5gP9oQfPm1lIfeqt+cDvs6jwA0iNd8XbDh1BUk 3PeeK9bCmIfCCW/ktSTeyOzcdvTbJpuWiBlHs56epUf9E5QDifzkFh7w1 JJSqEnaKUp0QtT+gaZMg8Z+Hyvo9fItTYtmzSmql0El1Ou7UR5BuWdB8Z iFT4NMNHSzXdeVgcsAgcd3ELpvwx0xH3uMOzPuyBSf+WNh2aIgeZ3+tmX w==; X-CSE-ConnectionGUID: I+zUQG3KSiiiwGtN22Ixjw== X-CSE-MsgGUID: c072b4IOQiqRjevIyY933Q== X-IronPort-AV: E=Sophos;i="6.10,220,1719903600"; d="scan'208";a="32280151" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 11 Sep 2024 09:15:12 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Wed, 11 Sep 2024 09:15:10 -0700 Received: from HYD-DK-UNGSW21.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Wed, 11 Sep 2024 09:15:05 -0700 From: Raju Lakkaraju To: CC: , , , , , , , , , , , , , Subject: [PATCH net-next V2 4/5] net: lan743x: Implement phylink pcs Date: Wed, 11 Sep 2024 21:40:53 +0530 Message-ID: <20240911161054.4494-5-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240911161054.4494-1-Raju.Lakkaraju@microchip.com> References: <20240911161054.4494-1-Raju.Lakkaraju@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Register MDIO bus for PCS layer to use Synopsys designware XPCS, support SGMII/1000Base-X/2500Base-X interfaces. Signed-off-by: Raju Lakkaraju --- Change List: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D = =20 V2 : Include this new patch in the V2 series.=20 drivers/net/ethernet/microchip/Kconfig | 1 + drivers/net/ethernet/microchip/lan743x_main.c | 72 ++++++++++++++++++- drivers/net/ethernet/microchip/lan743x_main.h | 2 + 3 files changed, 73 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/Kconfig b/drivers/net/ethernet/= microchip/Kconfig index 3dacf39b49b4..793a20ef51fc 100644 --- a/drivers/net/ethernet/microchip/Kconfig +++ b/drivers/net/ethernet/microchip/Kconfig @@ -53,6 +53,7 @@ config LAN743X select I2C_PCI1XXXX select GP_PCI1XXXX select SFP + select PCS_XPCS help Support for the Microchip LAN743x and PCI11x1x families of PCI Express Ethernet devices diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/et= hernet/microchip/lan743x_main.c index c1061e2972f9..ef76d0c1642f 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -1143,6 +1143,28 @@ static int lan743x_get_lsd(int speed, int duplex, u8= mss) return lsd; } =20 +static int pci11x1x_pcs_read(struct mii_bus *bus, int addr, int devnum, + int regnum) +{ + struct lan743x_adapter *adapter =3D bus->priv; + + if (addr) + return -EOPNOTSUPP; + + return lan743x_sgmii_read(adapter, devnum, regnum); +} + +static int pci11x1x_pcs_write(struct mii_bus *bus, int addr, int devnum, + int regnum, u16 val) +{ + struct lan743x_adapter *adapter =3D bus->priv; + + if (addr) + return -EOPNOTSUPP; + + return lan743x_sgmii_write(adapter, devnum, regnum, val); +} + static int lan743x_sgmii_mpll_set(struct lan743x_adapter *adapter, u16 baud) { @@ -3201,6 +3223,19 @@ void lan743x_mac_eee_enable(struct lan743x_adapter *= adapter, bool enable) lan743x_csr_write(adapter, MAC_CR, mac_cr); } =20 +static struct phylink_pcs * +lan743x_phylink_mac_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct net_device *netdev =3D to_net_dev(config->dev); + struct lan743x_adapter *adapter =3D netdev_priv(netdev); + + if (adapter->xpcs) + return &adapter->xpcs->pcs; + + return NULL; +} + static void lan743x_phylink_mac_config(struct phylink_config *config, unsigned int link_an_mode, const struct phylink_link_state *state) @@ -3302,6 +3337,7 @@ static void lan743x_phylink_mac_link_up(struct phylin= k_config *config, } =20 static const struct phylink_mac_ops lan743x_phylink_mac_ops =3D { + .mac_select_pcs =3D lan743x_phylink_mac_select_pcs, .mac_config =3D lan743x_phylink_mac_config, .mac_link_down =3D lan743x_phylink_mac_link_down, .mac_link_up =3D lan743x_phylink_mac_link_up, @@ -3654,6 +3690,9 @@ static void lan743x_hardware_cleanup(struct lan743x_a= dapter *adapter) =20 static void lan743x_mdiobus_cleanup(struct lan743x_adapter *adapter) { + if (adapter->xpcs) + xpcs_destroy(adapter->xpcs); + mdiobus_unregister(adapter->mdiobus); } =20 @@ -3763,6 +3802,7 @@ static int lan743x_hardware_init(struct lan743x_adapt= er *adapter, =20 static int lan743x_mdiobus_init(struct lan743x_adapter *adapter) { + struct dw_xpcs *xpcs; u32 sgmii_ctl; int ret; =20 @@ -3783,8 +3823,17 @@ static int lan743x_mdiobus_init(struct lan743x_adapt= er *adapter) "SGMII operation\n"); adapter->mdiobus->read =3D lan743x_mdiobus_read_c22; adapter->mdiobus->write =3D lan743x_mdiobus_write_c22; - adapter->mdiobus->read_c45 =3D lan743x_mdiobus_read_c45; - adapter->mdiobus->write_c45 =3D lan743x_mdiobus_write_c45; + if (adapter->is_sfp_support_en) { + adapter->mdiobus->read_c45 =3D + pci11x1x_pcs_read; + adapter->mdiobus->write_c45 =3D + pci11x1x_pcs_write; + } else { + adapter->mdiobus->read_c45 =3D + lan743x_mdiobus_read_c45; + adapter->mdiobus->write_c45 =3D + lan743x_mdiobus_write_c45; + } adapter->mdiobus->name =3D "lan743x-mdiobus-c45"; netif_dbg(adapter, drv, adapter->netdev, "lan743x-mdiobus-c45\n"); @@ -3820,9 +3869,28 @@ static int lan743x_mdiobus_init(struct lan743x_adapt= er *adapter) ret =3D mdiobus_register(adapter->mdiobus); if (ret < 0) goto return_error; + + if (adapter->is_sfp_support_en) { + if (!adapter->phy_interface) + lan743x_phy_interface_select(adapter); + + xpcs =3D xpcs_create_mdiodev(adapter->mdiobus, 0, + adapter->phy_interface); + if (IS_ERR(xpcs)) { + netdev_err(adapter->netdev, "failed to create xpcs\n"); + ret =3D PTR_ERR(xpcs); + goto err_destroy_xpcs; + } + adapter->xpcs =3D xpcs; + } + return 0; =20 +err_destroy_xpcs: + xpcs_destroy(xpcs); + return_error: + mdiobus_free(adapter->mdiobus); return ret; } =20 diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/et= hernet/microchip/lan743x_main.h index c303a69c3bea..f7480a401a27 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.h +++ b/drivers/net/ethernet/microchip/lan743x_main.h @@ -10,6 +10,7 @@ #include #include #include +#include #include "lan743x_ptp.h" =20 #define DRIVER_AUTHOR "Bryan Whitehead " @@ -1130,6 +1131,7 @@ struct lan743x_adapter { struct lan743x_sw_nodes *nodes; struct i2c_adapter *i2c_adap; struct platform_device *sfp_dev; + struct dw_xpcs *xpcs; }; =20 #define LAN743X_COMPONENT_FLAG_RX(channel) BIT(20 + (channel)) --=20 2.34.1