From e4c49d67ffde44c95038d9ee337c2bb580dcf860 Mon Sep 17 00:00:00 2001
From: songyanchao <songyanchao@geedgenetworks.com>
Date: Mon, 24 Jul 2023 11:01:50 +0500
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=88=20perf:=20Enable=20dropless=20rq?=
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Enable dropless rq
---
 .../files/90-nvidia-cx6-enable-dropless-rq.rules |  1 +
 ansible/roles/OFED/files/enable_dropless_rq.sh   |  9 +++++++++
 ansible/roles/OFED/tasks/main.yml                | 16 ++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100755 ansible/roles/OFED/files/90-nvidia-cx6-enable-dropless-rq.rules
 create mode 100755 ansible/roles/OFED/files/enable_dropless_rq.sh

diff --git a/ansible/roles/OFED/files/90-nvidia-cx6-enable-dropless-rq.rules b/ansible/roles/OFED/files/90-nvidia-cx6-enable-dropless-rq.rules
new file mode 100755
index 00000000..fef65516
--- /dev/null
+++ b/ansible/roles/OFED/files/90-nvidia-cx6-enable-dropless-rq.rules
@@ -0,0 +1 @@
+ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x15b3", ATTR{device}=="0x101d", RUN+="/usr/local/sbin/enable_dropless_rq.sh %k"
diff --git a/ansible/roles/OFED/files/enable_dropless_rq.sh b/ansible/roles/OFED/files/enable_dropless_rq.sh
new file mode 100755
index 00000000..aece74a7
--- /dev/null
+++ b/ansible/roles/OFED/files/enable_dropless_rq.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+PCI_ADDRESS=$1
+
+# Find network interface name associated with the given PCI address
+NET_INTERFACE=$(basename /sys/bus/pci/devices/${PCI_ADDRESS}/net/*)
+
+# Enable dropless_rq feature
+/sbin/ethtool --set-priv-flags ${NET_INTERFACE} dropless_rq on
diff --git a/ansible/roles/OFED/tasks/main.yml b/ansible/roles/OFED/tasks/main.yml
index 39bb545d..4d946cae 100644
--- a/ansible/roles/OFED/tasks/main.yml
+++ b/ansible/roles/OFED/tasks/main.yml
@@ -103,3 +103,19 @@
     mode: "0755"
     remote_src: yes
 ###### end ######
+
+###### Enable dropless rq ######
+- name: "Set the udev rule"
+  copy:
+    src: "/tmp/mft/90-nvidia-cx6-enable-dropless-rq.rules"
+    dest: "/usr/lib/udev/rules.d/90-nvidia-cx6-enable-dropless-rq.rules"
+    mode: "0644"
+    remote_src: yes
+
+- name: "Copy the 'enable_dropless_rq.sh' "
+  copy:
+    src: "/tmp/mft/enable_dropless_rq.sh"
+    dest: "/usr/local/sbin/enable_dropless_rq.sh"
+    mode: "0755"
+    remote_src: yes
+###### end ######
\ No newline at end of file