Update README

code/mTCP_server_MDcache/README

-========================================================================
- USAGE OF EXAMPLE APPLICATIONS
-========================================================================
-
-epserver: a simple mtcp-epoll-based web server
-   Single-Process, Multi-threaded Usage:
-      ./epserver -p www_home -f epserver.conf [-N #cores] 
-      ex) ./epserver -p /home/notav/www -f epserver.conf -N 8
-
-   Multi-Process, Single-threaded Usage [DPDK-only]
-      (Master runs on core 0 by default, Slave processes on core 1~N)
-      ex) ./epserver -p /home/notav/www -f epserver-multiprocess.conf -c 0
-      	  for i in {1..7}
-	  do
-	     ./epserver -p /home/notav/www -f epserver-mutliprocess.conf -c $i
-	  done
-
-
-options:
-  www_home: the directory to server. # max files are limited to 
-            MAX_FILES in epserver.c:36
-  -N: number of CPU cores to use. default: all existing cores
-  -p: path to www/ files
-  -f: path to mtcp configuration file
-  -c: the core_id on which the process should run
-      [only works for multi-process mode]
-
-========================================================================
-
-epwget: simple mtcp-epoll-based http request generator
- Single-Process, Multi-threaded Usage:
- usage: ./epwget URL #requests [-N #cores] [-c concurrency] -f $mtcp_conf
-    ex) ./epwget 10.0.0.43/example.txt 10000000 -N 8 -c 8000 -f epwget.conf
-
- Multi-Process, Single-threaded Usage [DPDK-only]
-    (Master runs on core 0 by default, Slave processes on core 1~N)
- usage: ./epwget URL #requests -n $core [-c concurrency] -f $mtcp_conf
-    ex) ./epwget 10.0.0.43/example.txt 10000000 -n 0 -c 1000 -f epwget-multiprocess.conf
-        for i in {1..7}
-	do
-	   ./epwget 10.0.0.43/example.txt 1000000 -n $i -c 1000 -f epwget-multiprocess.conf
-	done
-
-options:
-  URL: url of the content to download.
-  #requests: number of requests to generate
-  -N: number of CPU cores to use. default: min(# cores, # requests)
-  -c: number of maximum concurrent connections. default: 100
-  -f: path to mtcp configuration file
-  -n: the core_id on which the process should run
-      [only works for multi-process mode]
-
-notes:
-  - epwget can use a range of IP addresses for larger concurrent 
-	connections that cannot be in an IP. you can set it in epwget.c:33.
-  - epwget overrides some part of the settings in epgwet.conf and uses 
-    mtcp_setconf() internally to apply the input arguments to the 
-    configuration.
-
-========================================================================
-
-ONVM setups:
-The config file provides simple onvm mtcp setups such as:
-  - simple endpoint server
-    	  - Enable `io = onvm`, and `onvm_serv = 1` in epserver.conf
-	  - Run onvm
-	    	$ onvm/go.sh 1,2,3 1 -s stdout
-	  - Run epserver
-	    	$ sudo ./epserver -p /path/to/www -f epserver.conf -N 1
-  - local client/server setup
-    	  - Enable `io = onvm`, `onvm_serv` = 1, and `onvm_dest = 2` in epserver.conf
-	  - Enable `io = onvm`, `onvm_serv` = 2, and `onvm_dest = 1` in epwget.conf
-	  - Run onvm
-	    	$ onvm/go.sh 1,2,3 1 -s stdout
-	  - Run epserver
-	    	$ sudo ./epserver -p /path/to/www -f epserver.conf -N 1
-	  - Run epwget
-	    	$ sudo ./epwget $SERVER_IP/foo.html 10000000 -N 1 -c 1024 -f epwget.conf
-  
-
-PLEASE NOTE THAT YOU WILL HAVE TO ADD STATIC ARP TABLE ENTRIES TO RUN
-MTCP IN ONVM MODE.
-
-========================================================================
-
-                   Contact: mtcp-user at list.ndsl.kaist.edu
-                             April 2, 2014. 
-                 EunYoung Jeong <notav at ndsl.kaist.edu>
-		 M. Asim Jamshed <ajamshed at ndsl.kaist.edu>

code/mTCP_server_MDcache/README.md

+
+## mTCP for Bluefield smartNIC
+
+### mTCP code changes
+The material in "documentation" folder provides details on code changes required to run mTCP over Bluefield ARM cores.
+
+### Configure and compile mTCP
+1. Download and configure DPDK-19.11.8 using Alternative-2, as discussed in DPDK README
+2. Setup the MTCP-DPDK environment; this involves integration of DPDK with mTCP
+    a. $ export RTE_SDK=<absolute-path-to-dpdk-stable-19.11.8>
+    b. $ export RTE_TARGET=arm64-bluefield-linuxapp-gcc //For Bluefield smartNIC OR
+    
+        $ export RTE_TARGET=x86_64-native-linuxapp-gcc //For Host
+    c. Configure mTCP with our DPDK version
+
+        .../mtcp-devel$ ./configure --with-dpdk-lib=$RTE_SDK/$RTE_TARGET CFLAGS="-DMAX_CPUS=<num_host/nic_cpus>" 
+        // Use --disable-hwcsum when working in virtualized environment
+        // If there an error: “configure: error: Could not find gmp.h”;  $ sudo apt install libgmp-dev
+    d. Integrate mTCP with our DPDK version
+
+        <path-to-mtcp-devel>$ sudo ./setup_mtcp_dpdk_env.sh <absolute-path-to-dpdk-stable-19.11.8>
+3. Compile mTCP
+    
+    .../mtcp-devel$ make -j
+4. To revert back mTCP NIC changes
+    <path-to-mtcp-devel>$ ./setup_linux_env.sh <path to $RTE_SDK>
+
+### Run mTCP sample application "HTTP server"
+1. Configure static ARP entries
+
+    .../mtcp-devel/apps/example/config$ vim arp.conf 
+
+    //Add ARP entries for remote IPs (see example below)
+    
+        ```ARP_ENTRY 6
+        192.168.200.10/32 0c:42:a1:df:ac:48
+        192.168.210.10/32 0c:42:a1:df:ac:49
+        192.168.200.20/32 0c:42:a1:df:ac:42
+        192.168.210.20/32 0c:42:a1:df:ac:43
+        192.168.200.30/32 0c:42:a1:df:ac:41
+        192.168.210.30/32 0c:42:a1:df:ac:40```
+