From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=aj.id.au (client-ip=66.111.4.29; helo=out5-smtp.messagingengine.com; envelope-from=andrew@aj.id.au; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=aj.id.au header.i=@aj.id.au header.a=rsa-sha256 header.s=fm1 header.b=E2FWbmXJ; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=FQM1Q+N/; dkim-atps=neutral Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 47v3kS3pJ3zDqWv for ; Fri, 10 Jan 2020 11:28:48 +1100 (AEDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 3314921C29; Thu, 9 Jan 2020 19:28:45 -0500 (EST) Received: from imap2 ([10.202.2.52]) by compute4.internal (MEProxy); Thu, 09 Jan 2020 19:28:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h= mime-version:message-id:in-reply-to:references:date:from:to:cc :subject:content-type; s=fm1; bh=WYt0OG0HwC2u1DLwDLW+CPEm2gItk7D 9ABXilPK1O7M=; b=E2FWbmXJK0pLG+ZvLGk7KtnJlFwiMHccdESxzCMMVx4hwpX zdQGkCQK9H0H1LDOsRpce4YYl6gfa55klWL24OtUII/PHtCegB8Rb//KDC/7JsaM R2pCNmFNgAZqNE7wCLWSnPZJR47jK3bVXQvSRWRoa7kXQ5trfF9HNtez4WiJfRtO 8Tgv8YWMpUJA8QKuZOMawQ6jkHw7zdYpKKiafMztFLq/UXmqQXo9MH2J4c++k+e2 7fSPRjUWS5qMrf1S5eDf1w+KI31s4k/QJ59Vz2wIlb0s4auH67FgelWQik6jp9pF rNJPDhWtqHw6CrjSfimAPLiYy73a88AQQYPrEDw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=WYt0OG 0HwC2u1DLwDLW+CPEm2gItk7D9ABXilPK1O7M=; b=FQM1Q+N/E/m2MN0uPOSCSV 7xicqJ8p5cgJGS3iS11BEBH0wIkxO+npc/p1fd/b336xKREUUvIZbsBj51IfsuZJ 3n/aDs2ZUnOV9tk5eX/0qokGQ+ihiLPEkM1Wwi49Qa5bqRZLgBn3E67NlSakhaJD cZbv1IdQCpotegRTlqvWdarasobH+1lhN8QFupebDLgn093pvfmeuPCkzeLTF0/a Wip2L5zSSQpCQuhsWi0Pl4bDEa1/zz9IaZP1sBMnG+DKbt1YCSgSxV3TVBV/pPlJ YiCezd4MbG2Sf9UPJqLDUvIS45qHxRRYACU99WQG9CClaE22B4dZ7GR3Vzlpm7vA == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedufedrvdeivddgudelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepofgfggfkjghffffhvffutgesthdtredtreertdenucfhrhhomhepfdetnhgu rhgvficulfgvfhhfvghrhidfuceorghnughrvgifsegrjhdrihgurdgruheqnecurfgrrh grmhepmhgrihhlfhhrohhmpegrnhgurhgvfiesrghjrdhiugdrrghunecuvehluhhsthgv rhfuihiivgeptd X-ME-Proxy: Received: by mailuser.nyi.internal (Postfix, from userid 501) id D05D7E00A2; Thu, 9 Jan 2020 19:28:43 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.1.7-740-g7d9d84e-fmstable-20200109v1 Mime-Version: 1.0 Message-Id: <62036de3-ce3d-4ccb-ac5b-15e9ba39d22b@www.fastmail.com> In-Reply-To: <8a1fc80f-9d25-4c38-bdcd-df05c4194fe7@www.fastmail.com> References: <037D4669-D49C-4DF8-B49B-4F3BD97451AE@fb.com> <865C376D1B77624AAA570EFEF73CE52F9E08757B@fmsmsx118.amr.corp.intel.com> <3502e928-40c5-41d9-9ff1-5aa199e0e31b@www.fastmail.com> <865C376D1B77624AAA570EFEF73CE52F9E0E4E3E@fmsmsx118.amr.corp.intel.com> <8a1fc80f-9d25-4c38-bdcd-df05c4194fe7@www.fastmail.com> Date: Fri, 10 Jan 2020 11:00:43 +1030 From: "Andrew Jeffery" To: "Sharad Khetan" , "Vijay Khemka" , rgrs , "openbmc@lists.ozlabs.org" Subject: Re: MCTP over PCI on AST2500 Content-Type: text/plain X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jan 2020 00:28:51 -0000 On Thu, 9 Jan 2020, at 12:27, Andrew Jeffery wrote: > > > On Sat, 21 Dec 2019, at 10:45, Khetan, Sharad wrote: > > Hi Andrew, > > Sorry for late response. > > The plan is to have MCTP in user space. > > > > How are you handling this then? mmap()'ing the BAR from sysfs? Sorry, let me put my brain back in, I was thinking of the wrong side of the BMC/Host MCTP channel. How much were you planning to do in userspace on the BMC? As in, are you planning to drive the BMC's PCIe MCTP controller from userspace (presumably via /dev/mem)?