diff mbox

[dpdk-dev,2/3] doc: add introduction for fm10k FTAG based forwarding

Message ID 1453709251-32309-3-git-send-email-xiao.w.wang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Bruce Richardson
Headers

Commit Message

Xiao Wang Jan. 25, 2016, 8:07 a.m. UTC 
  Add a brief introduction on FTAG, describe what's FTAG and how it works
in forwarding.

Signed-off-by: Wang Xiao W <xiao.w.wang@intel.com>
---
 doc/guides/nics/fm10k.rst | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/doc/guides/nics/fm10k.rst b/doc/guides/nics/fm10k.rst
index 4206b7f..0f85e8c 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 +34,19 @@  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.
 
 Limitations
 -----------