From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 6E0941B3F5 for ; Wed, 26 Sep 2018 14:50:22 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Sep 2018 05:50:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,306,1534834800"; d="scan'208";a="265872560" Received: from aburakov-mobl1.ger.corp.intel.com (HELO [10.252.17.84]) ([10.252.17.84]) by fmsmga005.fm.intel.com with ESMTP; 26 Sep 2018 05:43:28 -0700 To: eric zhang , santosh.shukla@caviumnetworks.com Cc: dev@dpdk.org, Allain.Legacy@windriver.com, Matt.Peters@windriver.com References: <1537297807-19584-1-git-send-email-eric.zhang@windriver.com> <1537297807-19584-2-git-send-email-eric.zhang@windriver.com> From: "Burakov, Anatoly" Message-ID: <7cc37d83-e113-6291-13ec-cd96fed435d3@intel.com> Date: Wed, 26 Sep 2018 13:43:28 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <1537297807-19584-2-git-send-email-eric.zhang@windriver.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2 2/2] eal: force IOVA to particular mode X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Sep 2018 12:50:22 -0000 On 18-Sep-18 8:10 PM, eric zhang wrote: > This patch uses EAL option "--iova-mode" to force the IOVA mode to a > particular value. There exists virtual devices that are not directly > attached to the PCI bus, and therefore the auto detectioni of the IOVA > mode based on probing the PCI bus and IOMMU configuration may not > report the required addressing mode. Using the EAL option permits the > mode to be explicitly configured in this scenario. > > Signed-off-by: eric zhang > > --- Acked-by: Anatoly Burakov -- Thanks, Anatoly