fix: nfs client check, updated RFS

Signed-off-by: stafaniasaju <[email protected]>

roles/powervs_configure_os_for_sap/tasks/main.yml

@@ -88,11 +88,19 @@
     state: latest
 
 # to Ensure that NFS and rpcbind daemon are up.
-- name: Ensure NFS client is running
+- name: Ensure NFS client is running (RHEL)
+  ansible.builtin.service:
+    name: nfs-client.target
+    state: started
+    enabled: true
+  when: "ansible_distribution is match('RedHat*')"
+
+- name: Ensure NFS client is running (SLES)
   ansible.builtin.service:
     name: nfs
     state: started
     enabled: true
+  when: "ansible_distribution is match('SLES*')"
 
 - name: Ensure rpcbind is running
   ansible.builtin.service:
@@ -105,17 +113,8 @@
   changed_when: false
 
 # enable RFS
-- name: Update /proc/sys/net/core/rps_sock_flow_entries
-  ansible.legacy.shell: "echo 32768 > /proc/sys/net/core/rps_sock_flow_entries"
-
-- name: Find all rx-* files in /sys/class/net/*/queues/
-  ansible.legacy.shell: "find /sys/class/net/*/queues/ -name 'rx-*' | grep -v '/lo/'"
-  register: rx_files
-
-- name: Update and persist all rx-* files
-  ansible.legacy.shell: "echo '32768' > {{ item }}/rps_flow_cnt && sync {{ item }}/rps_flow_cnt"
-  loop: "{{ rx_files.stdout_lines }}"
-  when: rx_files.stdout_lines is defined
+- name: Tune RHEL for SAP
+  ansible.builtin.include_tasks: "rfs.yml"
 
 # sap tuning
 - name: Tune RHEL for SAP

roles/powervs_configure_os_for_sap/tasks/rfs.yml

@@ -0,0 +1,60 @@
+---
+# Ensure RFS configuration persists
+- name: Configure RFS with 32768
+  hosts: all
+  become: yes
+  tasks:
+    - name: Update rps_sock_flow_entries runtime value
+      ansible.builtin.shell: sysctl -w net.core.rps_sock_flow_entries=32768
+      changed_when: false
+
+    - name: Persist rps_sock_flow_entries in sysctl.conf
+      lineinfile:
+        path: /etc/sysctl.conf
+        regexp: '^net.core.rps_sock_flow_entries'
+        line: 'net.core.rps_sock_flow_entries=32768'
+
+    - name: Reload sysctl configuration
+      ansible.builtin.shell: sysctl -p
+
+    - name: Create custom systemd unit for RFS configuration
+      copy:
+        dest: /etc/systemd/system/rfs-config.service
+        content: |
+          [Unit]
+          Description=Set RPS flow control settings
+          After=network-online.target
+          Wants=network-online.target
+
+          [Service]
+          Type=oneshot
+          ExecStart=/bin/bash -c "sleep 5; for file in $(find /sys/class/net/*/queues/ -name 'rx-*' | grep -v '/lo/'); do echo 32768 > $file/rps_flow_cnt; done"
+
+          [Install]
+          WantedBy=multi-user.target
+
+    - name: Reload systemd manager configuration
+      ansible.builtin.shell: systemctl daemon-reload
+
+    - name: Enable and start RFS configuration service
+      systemd:
+        name: rfs-config.service
+        enabled: yes
+        state: restarted
+
+    - name: Verify sysctl value after service start
+      ansible.builtin.shell: sysctl net.core.rps_sock_flow_entries
+      register: sysctl_value
+
+    - name: Debug sysctl value
+      debug:
+        var: sysctl_value.stdout
+
+    - name: Verify RFS runtime configuration
+      ansible.builtin.shell: |
+        find /sys/class/net/*/queues/ -name 'rx-*' | grep -v '/lo/' | xargs -I{} cat {}/rps_flow_cnt
+      register: rfs_runtime_values
+
+    - name: Debug RFS runtime values
+      debug:
+        var: rfs_runtime_values.stdout_lines