From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A6D333A9DD for ; Tue, 20 Jan 2026 20:39:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768941553; cv=none; b=pZxbbwzLaJ3nxtSapszS6QkpgsBaxJFu51aRhxfb8rKFaybH0sz3vf7S2XR3oI2wka3vfUY22htt7DTwGMOjYT8NE7HbI7sKtAXIkpTKtptHKiL/khXc4U9UOgEBVBXq7jhgcLckA1o4QxxS1FhDyo554jTcOEmbV6Gw0uhXUQ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768941553; c=relaxed/simple; bh=5CiX2WUsbI2m7w6tFZKJqvkgdJH3bNVYQSdr5b3zvHw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=alEufP6V3c51uZjTmY/u+o5ikJpVX2AtyO5vH5zV/9oBWfkcIFC5x7s+mA0uy9MWshhrDIBNeEomppt3p8yxpqD15kvIpYQcVGHPBLIyiq5ty6oyK7cwcWK2U24T5ADOzjNXUfY+7+tEW4lILiUsvXkk+gTu0Dh6IXQCNF2Hv4Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=KvVSL7PX; arc=none smtp.client-ip=209.85.128.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KvVSL7PX" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-47eddddcdcfso28885105e9.1 for ; Tue, 20 Jan 2026 12:39:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768941549; x=1769546349; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=u6EvQ/5He659QnltZ2hQ5JWhAbcs5AVgWTzcueB+MkM=; b=KvVSL7PXwlGYq3BSOoSbyOCwLsRzTsiiyp/8KQHSS6n4dgxpUtQ0sZOjBAe3cfVN7Z N95rWZHAsg2NR9LBN0hQQ/i+Evu5QMBN8AeJRA0zgKEphOWLdj4OK3BzYTZLJGhJZYkz U3oqVz7UzGAPOhaHC81YJRPwSKNGzjka7RIjtypCEth6zZWddbN5Ti4EdfOpvCLmANUU /5wpmeVYxlIyk4Z+Cd04hguyAXFi6NW3G7ThvWaiKfcK5At8s8aaGFTGuOFS3vMpN8Ux 6QVYB/H/Y7HTSW6YRy51HilwEBzSlUJajGqa+RvUrNRhb4gYwbh51jcXLkfsbDmRO/ss DniA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768941549; x=1769546349; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=u6EvQ/5He659QnltZ2hQ5JWhAbcs5AVgWTzcueB+MkM=; b=kTpWOVUDxMmDQZTc3JAUORhsoiycV1NED4UQnGCP9O8eZfxo7ja0tN42Zs8z7HpqEU vvxnk6LYwP8w9RoG2OLu3udQ24AgCS7JpPVjcDYoTz5NZwTm+1hGjJwI3s4zZ/IHr2vc 2CmX+zqWHF1mGFGRUOphr63Ddf2uhAUzb0ovi2sbEtzX2zsdNPQId+Et2NWf7spZ65bf tQMfd7RP+CCTqIzTxDxVWou1gcwiXFeRqAOVRl+OrjuC2SsR8n4c8vBz7+Q5LvbNWCmV y3m4x1CLkPHdLwTfQ9lc94J7PetDuaksEbPPin2Zt+tIzvhuZGXlp8NkLfwZcLy9S8zF I48g== X-Forwarded-Encrypted: i=1; AJvYcCU/ErCNdS3oDAzuJ8wK+DAoJMMQiTqhMXivZAzeQBiTUt8iO4ojmOJqSQqKLC9CqUmPn8Y4S+7VioG1Vvg=@vger.kernel.org X-Gm-Message-State: AOJu0YwODSQcZbmOagZ1JVjIOoDDdgBeDtCjw2ru+8VXQ2kYPL09f42Y PfrzF1luJk6BsBvJTPaqbfpgh9In/KLFnhnB55RJe+Cn76EZkU9V/SAU X-Gm-Gg: AY/fxX5MHtI34mHzpmSUFk8hG+tdS4SfS6wXPojYv8/3TAk75ULyeONJN30CAtqNSyQ 7pZDbcc67jpIbRtTH7Z1EopbKXtDv2Ck6sbhr20ZPRd9mqT+uBkTQM/24x0n6pIyx0ZgF+535yk rJ/8pm/iXvdDi5FzmPs0OnOi4x/NWv8KsymP6TRxuRe1x2xzqthXk4r3W9R6RKwiff5hRAg37gI Ofk/qkgrxJ9W9Z6j78Ki0JY12P05BMccsk4pLI/ZIMZq9OJMGGct5RVBiw94ruvJ0MOVCJi8Hdd vRxRUHWjkLVOtah3RJdFu4zd/QKZQrkzZL8YNmqYA9FS/qx3E5HoOnpPUVEF45EOdOPMvfkbuVv XmHzRJB3BVCJ+HgwK+X9dx3g6AphlBLx6+woJMUZLusfQcjJVGBfU45goFDhtsizTiMVVEDdUnx jSg+NRg37/lTzeiGCExW+JKue8NvE= X-Received: by 2002:a05:600c:4e0f:b0:47e:e779:36e with SMTP id 5b1f17b1804b1-4801eb0375amr194243815e9.19.1768941549092; Tue, 20 Jan 2026 12:39:09 -0800 (PST) Received: from eichest-laptop.lan ([2a02:168:af72:0:378b:c660:2f9c:b651]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48042c3a7c1sm850425e9.13.2026.01.20.12.39.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jan 2026 12:39:08 -0800 (PST) From: Stefan Eichenberger To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, hkallweit1@gmail.com, linux@armlinux.org.uk, linux-stm32@st-md-mailman.stormreply.com, maxime.chevallier@bootlin.com, francesco.dolcini@toradex.com Cc: netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org, Stefan Eichenberger Subject: [PATCH net-next v3 1/3] net: phy: add a new phy_device flag to keep preamble before sfd Date: Tue, 20 Jan 2026 21:30:02 +0100 Message-ID: <20260120203905.23805-2-eichest@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260120203905.23805-1-eichest@gmail.com> References: <20260120203905.23805-1-eichest@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Stefan Eichenberger Add a new flag, PHY_F_KEEP_PREAMBLE_BEFORE_SFD, to indicate that the PHY shall not remove the preamble before the SFD if it supports it. MACs that do not support receiving frames without a preamble can set this flag. Signed-off-by: Stefan Eichenberger --- include/linux/phy.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/phy.h b/include/linux/phy.h index fbbe028cc4b7b..a978173c0e2a1 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -802,8 +802,9 @@ struct phy_device { }; /* Generic phy_device::dev_flags */ -#define PHY_F_NO_IRQ 0x80000000 -#define PHY_F_RXC_ALWAYS_ON 0x40000000 +#define PHY_F_NO_IRQ 0x80000000 +#define PHY_F_RXC_ALWAYS_ON 0x40000000 +#define PHY_F_KEEP_PREAMBLE_BEFORE_SFD 0x20000000 #define to_phy_device(__dev) container_of_const(to_mdio_device(__dev), struct phy_device, mdio) -- 2.51.0