From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wang Xiao W Subject: [PATCH v2 2/3] doc: add introduction for fm10k FTAG based forwarding Date: Tue, 2 Feb 2016 18:50:15 +0800 Message-ID: <1454410216-13333-3-git-send-email-xiao.w.wang@intel.com> References: <1453709251-32309-2-git-send-email-xiao.w.wang@intel.com> <1454410216-13333-1-git-send-email-xiao.w.wang@intel.com> Cc: dev@dpdk.org To: jing.d.chen@intel.com Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id C00F295DB for ; Tue, 2 Feb 2016 11:50:28 +0100 (CET) In-Reply-To: <1454410216-13333-1-git-send-email-xiao.w.wang@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add a brief introduction on FTAG, describe what's FTAG and how it works in forwarding. Signed-off-by: Wang Xiao W --- doc/guides/nics/fm10k.rst | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/doc/guides/nics/fm10k.rst b/doc/guides/nics/fm10k.rst index 4206b7f..6f61482 100644 --- a/doc/guides/nics/fm10k.rst +++ b/doc/guides/nics/fm10k.rst @@ -1,5 +1,5 @@ .. BSD LICENSE - Copyright(c) 2015 Intel Corporation. All rights reserved. + Copyright(c) 2015-2016 Intel Corporation. All rights reserved. All rights reserved. Redistribution and use in source and binary forms, with or without @@ -34,6 +34,20 @@ FM10K Poll Mode Driver The FM10K poll mode driver library provides support for the Intel FM10000 (FM10K) family of 40GbE/100GbE adapters. +FTAG Based Forwarding of FM10K +------------------------------ + +FTAG Based Forwarding is a unique feature of FM10K. The FM10K family of NICs +support the addition of a Fabric Tag (FTAG) to carry special information. +The FTAG is placed at the beginning of the frame, it contains information +such as where the packet comes from and goes, and the vlan tag. In FTAG based +forwarding mode, the switch logic forwards packets according to glort (global +resource tag) information, rather than the mac and vlan table. Currently this +feature works only on PF. + +To enable this feature, turn ``CONFIG_RTE_LIBRTE_FM10K_FTAG_FWD`` to y in the +configuration file, and the application should make sure an appropriate FTAG is +inserted for every frame on TX side. Limitations ----------- -- 1.9.3