From nobody Mon Aug 28 01:51:38 2023 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4RYtpD3KGYz4rt72 for ; Mon, 28 Aug 2023 01:51:48 +0000 (UTC) (envelope-from zlei@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4RYtpD2lwbz3dQM; Mon, 28 Aug 2023 01:51:48 +0000 (UTC) (envelope-from zlei@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1693187508; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=AlU6kgzc+vIyA8yu8WeFkvXj9Elxgjh2RjMPdoPwyNQ=; b=T8rfgsN6wXTdajnMqXB0txfvQa645E2PtsisMez8E2XYpql5F7gAoQhdi2QUR22inaLjyY GJd9gA978i+TKWVocLGc9Cq2CYkaZjpKlbtsRvQYmGCxZxk680R/VQw/CExC6Kzotu8SnN E4UPCYruPf6OC+sHJgFJpfLhtoj8cIFPwaI2ophVtsP1HUUPgHn1G2xW/VKxJwDUhN+Yf1 w/q1qjBPJEsPVWM65Y3uVdvSERR80NqtX+oiuzRkYX/299ULfQbN2/E9SsqlcRiG9ImFMm w/73UWZjshuCuqyYePBRv3oLrQMWIiEJlxqaisS5ZEgVo5fnUT10KkKrNq4Pgg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1693187508; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=AlU6kgzc+vIyA8yu8WeFkvXj9Elxgjh2RjMPdoPwyNQ=; b=gw4uBz8MDKPbs7IJUYM9+DhfBo4s4pZSkU3wlKsZAkEkEronbGiIDuwZ2pPa+QcgDkT/0v p0a0XbrHjNTKJj95zLIP+6HAqRDgHDiO/cVMDBoLqN+1w/Mg35kvE30GvKYiOMZ35XijGh mAO0vPhOTrLeGBkL2Y9n8tncJ59Kf6dPWlUAPuq1zI3SsYZjE6SPX409x+V71y/IMnyfoq o05G/eU1devKBnILHc0oAqNEa+Ki+qHo7DPbqsMUXC8eFWt+OVc1fiySAszz8uItO2tYqT YZdGO0GOAdBuhqHtXLKQvW4WvAJRFcCre0vK6NGJNq6OeIt95/wj3H5yoUWJjw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1693187508; a=rsa-sha256; cv=none; b=CCJvvkwM+tWnXyWoAb9xkfWZJQSET2Lq0BnZ/u+hxlp/OgRM2p8JzNXXbrnkUyHvh1Ylyh E15ac5QnRhVL8U66+f4TsxCIWivrI205U1fbf8h9tIBDdnEehwI+zUPUI3cH41bsedJal9 CpzrYz29B1b9eZg9OEq6OKQRlUtkEx4+nrmA+jA8PW2CasogRJeJn5EeUtCOWs73/eZck6 vwmIg9XOqHzX71DrK6qfQgHTOjvBITdP208IRwgVIx9Hx9OrF2nB1dsPET/Z+DWml3Ssro CP1d6GRhQk58lgq0VX1h8Oimm0AQCta9v6lvXqS6RCX9eUgUQtIVxZ8niMNPLw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2001:19f0:6001:9db:98f0:9fe0:3545:10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) (Authenticated sender: zlei/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4RYtpC2b0gz1bYn; Mon, 28 Aug 2023 01:51:46 +0000 (UTC) (envelope-from zlei@FreeBSD.org) From: Zhenlei Huang Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.4\)) Subject: About IFNET_PCP_NONE Message-Id: Date: Mon, 28 Aug 2023 09:51:38 +0800 Cc: freebsd-net To: Konstantin Belousov X-Mailer: Apple Mail (2.3696.120.41.1.4) Hi Konstantin, I was just about going to open a PR for = https://reviews.freebsd.org/D39536 and realized I might made wrong assumption. I thought IFNET_PCP_NONE is something like IEEE8021Q_PCP_BE but I second = why not use IEEE8021Q_PCP_BE but a new const IFNET_PCP_NONE. So despite its naming IFNET_PCP_NONE, is it actually a flag to let = specific interface completely bypass (disable) PCP processing? The const IFNET_PCP_NONE is defined in sys/net/if.h with=20 ``` #define IFNET_PCP_NONE 0xff /* PCP disabled */ ``` Best regards, Zhenlei