Improve the README and rework the installation script.

README.md

@@ -101,7 +101,23 @@ they take artifacts associated with P4 as inputs.
 The building of drivers produces a set of libraries that need to be
 loaded (or linked to) the application.
 
-Note: SDE is the top level directory with this p4-dpdk-target, syslibs and utils repo cloned in next step
+You can install and build in two ways:
+
+1. Using the Installation script
+2. Manually
+
+**Note:** `SDE` is the top-level directory containing the `p4-dpdk-target`, `syslibs`, and `utils` repositories (cloned in the next step).
+
+## Installation via Script
+
+To install P4-DPDK using the provided script, run:
+
+```bash
+./install_p4_dpdk.sh
+```
+The script installs P4-DPDK and prompts you to configure hugepages and the required permissions to access them.
+
+## Manual Installation
 
 #### Create install directory under SDE
 ```
@@ -116,13 +132,14 @@ To set environment variables for SDE, see below :-
 ```
 Ensure SDE, SDE_INSTALL and LD_LIBRARY_PATH environment variables are set correctly
 
-#### Installing P4-DPDK directly from the Installation script
-To install P4-DPDK you can run the below command it will install `P4-DPDK` and all other necessary libraries required to run `P4-DPDK` or you can follow steps below this section to install it manually
-
+#### Install dependent packages
+To Install the dependencies for p4-driver on the platform Fedora 33, see below:-
+Note:- Make sure that your yum repository proxy and environment proxies are set properly and you have sudo access.
 ```bash
-./install_dpdk.sh
+pip3 install distro (dependency)
+cd p4-dpdk-target/tools/setup
+python3 install_dep.py
 ```
-
 #### Building P4 DPDK target
  ```
     cd $SDE/p4-dpdk-target

install_p4_dpdk.sh

@@ -0,0 +1,137 @@
+#!/usr/bin/env bash
+set -e
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+YELLOW='\033[1;33m'
+BOLD='\033[1m'
+NC='\033[0m' # No Color
+
+print_step() {
+    echo -e "\n${BOLD}${BLUE}==>${NC} ${BOLD}$1${NC}"
+}
+
+echo -e "${BOLD}${BLUE}=== P4 DPDK Target Installation Script ===${NC}"
+
+check_and_install() {
+    local cmd=$1
+    local pkgs=$2
+
+    # Check if command exists (for executables)
+    if ! command -v "$cmd" >/dev/null 2>&1; then
+        echo -e "${YELLOW}$cmd not found.${NC}"
+        sudo apt update
+        sudo apt install -y $pkgs
+    fi
+ }
+
+check_and_install_pkgs() {
+     local pkgs=$1
+    if dpkg-query -l "$pkgs" >/dev/null 2>&1; then
+        echo -e "${GREEN}$pkgs is already installed.${NC}"
+    else
+        echo -e "${YELLOW}$pkgs not found. Installing...${NC}"
+        sudo apt update
+        sudo apt install -y "$pkgs"
+    fi
+}
+
+
+# ------------------------------------------------------------
+# 1. Base directories
+# ------------------------------------------------------------
+export SDE=$(pwd)/sde
+export SDE_INSTALL=$SDE/install
+
+mkdir -p "$SDE"
+mkdir -p "$SDE_INSTALL"
+
+# ------------------------------------------------------------
+# 0. Check Dependencies (install if missing)
+# ------------------------------------------------------------
+print_step "0/5 Checking dependencies..."
+# Install Wireshark and tshark on Ubuntu system without having to
+# answer _any_ questions interactively, except perhaps providing your
+# password when prompted by 'sudo'.
+# https://askubuntu.com/questions/1275842/install-wireshark-without-confirm
+echo "wireshark-common wireshark-common/install-setuid boolean true" | sudo debconf-set-selections
+sudo DEBIAN_FRONTEND=noninteractive apt-get -y install wireshark tshark
+ check_and_install "pip3" "python3-pip"
+check_and_install "pip3" "python3-pip"
+check_and_install "autoreconf" "autoconf automake libtool pkg-config autoconf-archive automake"
+check_and_install "cmake" "cmake" 
+check_and_install "doxygen" "doxygen" 
+check_and_install "dpdk-testpmd" "dpdk dpdk-dev libdpdk-dev"
+check_and_install_pkgs "libcjson-dev"
+check_and_install_pkgs "libedit-dev"
+check_and_install_pkgs "libffi-dev"
+
+# ------------------------------------------------------------
+# 1. Cloning p4-dpdk-target
+# ------------------------------------------------------------
+print_step "1/5 Cloning p4-dpdk-target..."
+cd $SDE
+    git clone https://github.com/p4lang/p4-dpdk-target.git
+
+# ------------------------------------------------------------
+# 2. System dependencies
+# ------------------------------------------------------------
+print_step "2/5 Installing system dependencies..."
+
+sudo apt update && sudo apt upgrade && sudo apt install -y python3-venv python3-full
+python3 -m venv "$SDE/.venv"
+source "$SDE/.venv/bin/activate"
+
+cd "$SDE/p4-dpdk-target/tools/setup"
+source ./p4sde_env_setup.sh "$SDE"
+pip3 install distro
+python3 install_dep.py
+
+# ------------------------------------------------------------
+# 3. Build p4-dpdk-target
+# ------------------------------------------------------------
+print_step "3/5 Building p4-dpdk-target..."
+
+cd $SDE/p4-dpdk-target
+git submodule update --init --recursive --force
+./autogen.sh
+read -p "Build for TDI only? [y/N] " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    ./configure --prefix=$SDE_INSTALL --with-generic-flags=yes #For TDI build
+else
+    ./configure --prefix=$SDE_INSTALL #For both bfrt and TDI build
+fi
+make -j
+make install
+
+# ------------------------------------------------------------
+# 4. Hugepages (required for DPDK)
+# ------------------------------------------------------------
+print_step "4/5 Configuring hugepages..."
+read -p "Configure hugepages? [y/N] " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    sudo sysctl -w vm.nr_hugepages=1024 || true
+    sudo mkdir -p /mnt/huge || true
+    mount | grep hugetlbfs || sudo mount -t hugetlbfs nodev /mnt/huge || true
+else
+    echo "Skipping hugepages configuration."
+fi
+
+# ------------------------------------------------------------
+# 5. Hugepages permissions
+# ------------------------------------------------------------
+print_step "5/5 Configuring hugepages permissions..."
+read -p "Configure hugepages permissions? [y/N] " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    sudo chown $(id -u):$(id -g) /dev/hugepages
+    sudo chmod 700 /dev/hugepages
+else
+    echo "Skipping hugepages permissions configuration."
+fi
+
+echo -e "${BOLD}${GREEN}DONE ✔${NC}"