From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 483C5A00BE; Tue, 28 Apr 2020 10:34:39 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 88FBB1D5CA; Tue, 28 Apr 2020 10:33:22 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 6B6991D5B8 for ; Tue, 28 Apr 2020 10:33:16 +0200 (CEST) IronPort-SDR: ZMjb8fWsqhkQbwzUloALlVkYme2/PNXiOZ8nRdNQd+81tWUJMWBkaVB/DYOrGDwcGiXqfT73ui KTvia9RcIM4g== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Apr 2020 01:33:16 -0700 IronPort-SDR: rhHtW6CmBQiDNC3TduxCDFtrFMx9RN5jRGL8kYL5EJEF17+xOGzhqoL5g4KX1Vk2Z83K946/KW vlgeKMPWbylw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,327,1583222400"; d="scan'208";a="458709430" Received: from npg-dpdk-virtual-marvin-dev.sh.intel.com ([10.67.119.56]) by fmsmga005.fm.intel.com with ESMTP; 28 Apr 2020 01:33:14 -0700 From: Marvin Liu To: maxime.coquelin@redhat.com, xiaolong.ye@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org, Marvin Liu Date: Tue, 28 Apr 2020 16:32:55 +0800 Message-Id: <20200428083255.110046-10-yong.liu@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200428083255.110046-1-yong.liu@intel.com> References: <20200313174230.74661-1-yong.liu@intel.com> <20200428083255.110046-1-yong.liu@intel.com> Subject: [dpdk-dev] [PATCH v11 9/9] doc: add packed vectorized path 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Document packed virtqueue vectorized path selection logic in virtio net PMD. Signed-off-by: Marvin Liu Reviewed-by: Maxime Coquelin diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst index fdd0790e0..226f4308d 100644 --- a/doc/guides/nics/virtio.rst +++ b/doc/guides/nics/virtio.rst @@ -482,6 +482,13 @@ according to below configuration: both negotiated, this path will be selected. #. Packed virtqueue in-order non-mergeable path: If in-order feature is negotiated and Rx mergeable is not negotiated, this path will be selected. +#. Packed virtqueue vectorized Rx path: If building and running environment support + AVX512 && in-order feature is negotiated && Rx mergeable is not negotiated && + TCP_LRO Rx offloading is disabled && vectorized option enabled, + this path will be selected. +#. Packed virtqueue vectorized Tx path: If building and running environment support + AVX512 && in-order feature is negotiated && vectorized option enabled, + this path will be selected. Rx/Tx callbacks of each Virtio path ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -504,6 +511,8 @@ are shown in below table: Packed virtqueue non-meregable path virtio_recv_pkts_packed virtio_xmit_pkts_packed Packed virtqueue in-order mergeable path virtio_recv_mergeable_pkts_packed virtio_xmit_pkts_packed Packed virtqueue in-order non-mergeable path virtio_recv_pkts_packed virtio_xmit_pkts_packed + Packed virtqueue vectorized Rx path virtio_recv_pkts_packed_vec virtio_xmit_pkts_packed + Packed virtqueue vectorized Tx path virtio_recv_pkts_packed virtio_xmit_pkts_packed_vec ============================================ ================================= ======================== Virtio paths Support Status from Release to Release @@ -521,20 +530,22 @@ All virtio paths support status are shown in below table: .. table:: Virtio Paths and Releases - ============================================ ============= ============= ============= - Virtio paths 16.11 ~ 18.05 18.08 ~ 18.11 19.02 ~ 19.11 - ============================================ ============= ============= ============= - Split virtqueue mergeable path Y Y Y - Split virtqueue non-mergeable path Y Y Y - Split virtqueue vectorized Rx path Y Y Y - Split virtqueue simple Tx path Y N N - Split virtqueue in-order mergeable path Y Y - Split virtqueue in-order non-mergeable path Y Y - Packed virtqueue mergeable path Y - Packed virtqueue non-mergeable path Y - Packed virtqueue in-order mergeable path Y - Packed virtqueue in-order non-mergeable path Y - ============================================ ============= ============= ============= + ============================================ ============= ============= ============= ======= + Virtio paths 16.11 ~ 18.05 18.08 ~ 18.11 19.02 ~ 19.11 20.05 ~ + ============================================ ============= ============= ============= ======= + Split virtqueue mergeable path Y Y Y Y + Split virtqueue non-mergeable path Y Y Y Y + Split virtqueue vectorized Rx path Y Y Y Y + Split virtqueue simple Tx path Y N N N + Split virtqueue in-order mergeable path Y Y Y + Split virtqueue in-order non-mergeable path Y Y Y + Packed virtqueue mergeable path Y Y + Packed virtqueue non-mergeable path Y Y + Packed virtqueue in-order mergeable path Y Y + Packed virtqueue in-order non-mergeable path Y Y + Packed virtqueue vectorized Rx path Y + Packed virtqueue vectorized Tx path Y + ============================================ ============= ============= ============= ======= QEMU Support Status ~~~~~~~~~~~~~~~~~~~ -- 2.17.1