Ubuntu: Generate /etc/mellanox/mlnx-sf.conf on first boot

Signed-off-by: Vladimir Sokolovsky <[email protected]>

Author: vladsokolovsky

debian/rules

@@ -32,6 +32,7 @@ override_dh_auto_install:
 	install -m 0755	src/mlnx-pre-hlk     debian/$(pname)/opt/mellanox/hlk/mlnx-pre-hlk
 	install -m 0755	src/mlnx-post-hlk    debian/$(pname)/opt/mellanox/hlk/mlnx-post-hlk
 	install -m 0755	src/kexec_reboot     debian/$(pname)/sbin/kexec_reboot
+	install -m 0755	src/mlnx-sf-generate-config.sh     debian/$(pname)/sbin/mlnx-sf-generate-config.sh
 
 	dh_installdirs -p$(pname)	opt/mellanox/doca/services/telemetry
 	install -m 0755 src/import_doca_telemetry.sh debian/$(pname)/opt/mellanox/doca/services/telemetry

src/cloud/seed/nocloud-net/user-data

@@ -114,5 +114,6 @@ chpasswd:
   expire: True
 
 runcmd:
+  - [ /sbin/mlnx-sf-generate-config.sh ]
   - [ /usr/sbin/netfilter-persistent, start ]
   - [ /opt/mellanox/doca/services/telemetry/import_doca_telemetry.sh ]

src/mlnx-sf-generate-config.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+###############################################################################
+#
+# Copyright 2025 NVIDIA Corporation
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+###############################################################################
+
+: > /etc/mellanox/mlnx-sf.conf
+
+for pciid in $(lspci -nD 2> /dev/null | grep 15b3:a2d[26cf] | awk '{print $1}')
+do
+        cat >> /etc/mellanox/mlnx-sf.conf << EOF
+/sbin/mlnx-sf --action create --device $pciid --sfnum 0 --hwaddr $(uuidgen | sed -e 's/-//;s/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
+EOF
+done
+