Modify documents to mention hardware table implementation

INSTALL

@@ -109,6 +109,13 @@ distribution in the ordinary way using "configure" and "make".
 
       % ./configure CC=gcc-4.2
 
+   If you have hardware that supports accelerated OpenFlow switching
+   and you have obtained a hardware table library for your hardware
+   and extracted it into the OpenFlow reference distribution source
+   tree, then you may also enable building support for the hardware
+   switch table with --enable-hw-lib. For more information, read
+   README.hwtables at the root of the OpenFlow distribution tree.
+
    The configure script accepts a number of other options and honors
    additional environment variables.  For a full list, invoke
    configure with the --help option.

README.hwtables

@@ -10,35 +10,30 @@ expected to handle any incoming packets that it can on its own.  Any
 packets that it cannot handle itself it may pass up to the software
 table implementations.
 
-Hardware table implementation are built as separate kernel modules
+Hardware table implementation are provided as a library and built
-that may be loaded after the openflow module.  At most one hardware
+in the userspace datapath executable.
-table module may be loaded at a time.  Only datapaths created after a
-hardware table module is loaded (and before it is unloaded) will take
-advantage of hardware switching features.
 
 Creating a hardware table module is straightforward.  Create a
-directory in the openflow source tree named datapath/hwtable_NAME,
+directory in the openflow source tree named hw-lib/NAME,
 where NAME identifies the hardware that the module supports.  Populate
 that directory with the C source files that comprise the module, plus
-a file named Modules.mk that specifies how to build the module.  This
+a file named automake.mk that specifies how to build the module in
-distribution includes a "dummy" hardware module that demonstrates how
+the hw-lib directory.  This distribution includes a "skeleton" hardware
-this works.
+library that demonstrates how this works.
 
-Even though only one may be loaded at a given time, any number of
+When you perform 'configure', specify each NAME that identifies a
-hardware table modules may be built along with the OpenFlow kernel
+library to be included on the OpenFlow configure script command as
-modules.  Specify each NAME that identifies a module to be built on
+the argument to --enable-hw-lib, e.g.:
-the OpenFlow configure script command as the argument to
+	./configure --enable-hw-lib=NAME
---enable-hw-tables, e.g.:
-	./configure --enable-hw-tables=NAME
 
-Each hardware table module's code is encapsulated in a directory, so
+Each hardware table library's code is encapsulated in a directory, so
 it is easy to separate a hardware table implementation from OpenFlow.
-Simply package up the contents of the hwtable_NAME directory and
+Simply package up the contents of the hw-lib/NAME directory and
 distribute it for builders to extract into their distribution
 directory.
 
 Included in this distribution is a dummy hardware table to aid in beginning
-your own hardware table port, it is located in the datapath/hwtable_dummy
+your own hardware table port, it is located in the hw-lib/skeleton
 folder. Also included is a fully functional NetFPGA hardware table that can run
 as a 1Gbx4 port line-rate OpenFlow switch. Information and instructions for its
-use can be found in the datapath/hwtable_nf2/README file.
+use can be found in the hw-lib/nf2/README file.