From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 3139813A3E8; Wed, 5 Jun 2024 18:38:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717612721; cv=none; b=T1SZvFGA0h2DSuRhsdfFDIuzOYA960Bh0pyUNdOYgFvJLTmUBL6pTERIsywfbjX23U9YUl9Onvn06n6aRxa6STBNeco7Q6Bb8K/zIKMFgPhOfryploH+/RCly7x3RJ4d3Rw4vgfBlQWg9KRuIo0ZxaeZ8RbXlc6lIgxXFWgOs9k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717612721; c=relaxed/simple; bh=RTIMvfyzwpsoVkZWvb/Q4fpb7BhipiPVExizhw2Lj8o=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Th26N0Hr6RAMO6aUQH52qSEMa8uWAITZSL0mdCJCYggkNfUj0N/sy4I4DUmPhP+b845hPqu2ff7b+j1A0RkDrShJosHSyW56fMjnxZHq5rdpGjM4fZ6IuJ5OnAJDqvczxQ8GE6Rh2cozbYYMYSaJBo5jhuHO2AWzaZZTCrvVeg4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=IHqvd14+; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="IHqvd14+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717612720; x=1749148720; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=RTIMvfyzwpsoVkZWvb/Q4fpb7BhipiPVExizhw2Lj8o=; b=IHqvd14+TEUzAfbt6TlpiyifGm3bBodFY8MWLasVv3f0ukHu2dBt4Y9A slmj4byqKLkcKrohleIJZ7anXz2gb0DJ56RHggEiq7gP42XmPQ0Trk3Kq jNsHM3Xov7725478YHrkAMybIryyNQawjfwL7BtUXPSlO62lwlsK+wIr1 JM2ARI2wQ4Vs7PSEmNSdtVPlIRi6bzs5LI190PrdZf6O/WKIp5m7bSdnq pMuXOnOZxlrTq1DntmKZzVhiO58fMQQiU0buIf/5B8R++0ImjWgnt9wXp uGfA89K0HsAGov2QK43i6k/3L6aUqY4tekh+MTWDn1pZ8AKV/DNQM5eoP Q==; X-CSE-ConnectionGUID: RPSLwnjBTaahJkiTrrbrzQ== X-CSE-MsgGUID: pKnXfe9NTl6AlL6qIGmiEA== X-IronPort-AV: E=McAfee;i="6600,9927,11094"; a="14201520" X-IronPort-AV: E=Sophos;i="6.08,217,1712646000"; d="scan'208";a="14201520" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jun 2024 11:38:40 -0700 X-CSE-ConnectionGUID: 32+srnolSw+1eNkW+yVJjQ== X-CSE-MsgGUID: hiugKIPsTLCfzwSkwyLw7w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,217,1712646000"; d="scan'208";a="42643909" Received: from aschofie-mobl2.amr.corp.intel.com (HELO aschofie-mobl2) ([10.251.22.89]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jun 2024 11:38:39 -0700 Date: Wed, 5 Jun 2024 11:38:38 -0700 From: Alison Schofield To: Dave Jiang Cc: linux-cxl@vger.kernel.org, linux-pci@vger.kernel.org, dan.j.williams@intel.com, ira.weiny@intel.com, vishal.l.verma@intel.com, Jonathan.Cameron@huawei.com, dave@stgolabs.net Subject: Re: [PATCH v3 0/2] cxl: Region bandwidth calculation for targets with shared upstream link Message-ID: References: <20240529214357.1193417-1-dave.jiang@intel.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240529214357.1193417-1-dave.jiang@intel.com> On Wed, May 29, 2024 at 02:38:56PM -0700, Dave Jiang wrote: > This series provides recalculation of the CXL region bandwidth when the targets have > shared upstream link by walking the toplogy from bottom up and clamp the bandwdith > as the code trasverses up the tree. An example topology: > > An example topology from Jonathan: > > CFMWS 0 > | > _________|_________ > | | > GP0/HB0/ACPI0017-0 GP1/HB1/ACPI0017-1 > | | | | > RP0 RP1 RP2 RP3 > | | | | > SW 0 SW 1 SW 2 SW 3 > | | | | | | | | > EP0 EP1 EP2 EP3 EP4 EP5 EP6 EP7 Are the ACPI0017 labels a typo? Expected host bridges to be labelled as ACPI0016's. That's all, just did a drive-by on the art today. -- Alison