mbuf: remove control mbuf

[dpdk.git] / doc / guides / prog_guide / lpm6_lib.rst

diff --git a/doc/guides/prog_guide/lpm6_lib.rst b/doc/guides/prog_guide/lpm6_lib.rst
index abc5adb..f791507 100644 (file)
--- a/doc/guides/prog_guide/lpm6_lib.rst
+++ b/doc/guides/prog_guide/lpm6_lib.rst
@@ -53,7 +53,7 @@ several thousand IPv6 rules, but the number can vary depending on the case.
 An LPM prefix is represented by a pair of parameters (128-bit key, depth), with depth in the range of 1 to 128.
 An LPM rule is represented by an LPM prefix and some user data associated with the prefix.
 The prefix serves as the unique identifier for the LPM rule.
-In this implementation, the user data is 1-byte long and is called "next hop",
+In this implementation, the user data is 21-bits long and is called "next hop",
 which corresponds to its main use of storing the ID of the next hop in a routing table entry.
 
 The main methods exported for the LPM component are:
@@ -75,7 +75,7 @@ The main methods exported for the LPM component are:
 Implementation Details
 ~~~~~~~~~~~~~~~~~~~~~~
 
-This is a modification of the algorithm used for IPv4 (see Section 19.2 "Implementation Details").
+This is a modification of the algorithm used for IPv4 (see :ref:`lpm4_details`).
 In this case, instead of using two levels, one with a tbl24 and a second with a tbl8, 14 levels are used.
 
 The implementation can be seen as a multi-bit trie where the *stride*
@@ -108,9 +108,11 @@ This is not feasible due to resource restrictions.
 By splitting the process in different tables/levels and limiting the number of tbl8s,
 we can greatly reduce memory consumption while maintaining a very good lookup speed (one memory access per level).
 
-.. image40_png has been renamed
 
-|tbl24_tbl8_tbl8|
+.. figure:: img/tbl24_tbl8_tbl8.*
+
+   Table split into different levels
+
 
 An entry in a table contains the following fields:
 
@@ -231,5 +233,3 @@ Use Case: IPv6 Forwarding
 -------------------------
 
 The LPM algorithm is used to implement the Classless Inter-Domain Routing (CIDR) strategy used by routers implementing IP forwarding.
-
-.. |tbl24_tbl8_tbl8| image:: img/tbl24_tbl8_tbl8.*