|
 |
0738a69 |
From 872eb69936bd849eec6d1974dd6569f23a7ad3db Mon Sep 17 00:00:00 2001
|
|
|
0738a69 |
From: Kairui Song <kasong@redhat.com>
|
|
|
0738a69 |
Date: Thu, 5 Mar 2020 18:44:45 +0800
|
|
|
0738a69 |
Subject: [PATCH] 95znet: Add a rd.znet_ifname= option
|
|
|
0738a69 |
|
|
|
0738a69 |
qeth device may have a different IP for each boot, so the rd.ifname=
|
|
|
0738a69 |
option will no longer work. So for znet device, introduce a
|
|
|
0738a69 |
rd.znet_ifname= options, to subchannel id instead of MAC address as the
|
|
|
0738a69 |
identifier and rename the interface.
|
|
|
0738a69 |
|
|
|
0738a69 |
Signed-off-by: Kairui Song <kasong@redhat.com>
|
|
|
0738a69 |
---
|
|
|
0738a69 |
dracut.cmdline.7.asc | 5 +++++
|
|
|
0738a69 |
modules.d/95znet/parse-ccw.sh | 18 ++++++++++++++++++
|
|
|
0738a69 |
2 files changed, 23 insertions(+)
|
|
|
0738a69 |
|
|
|
0738a69 |
diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc
|
|
|
0738a69 |
index 63074353..2b38aa33 100644
|
|
|
0738a69 |
--- a/dracut.cmdline.7.asc
|
|
|
0738a69 |
+++ b/dracut.cmdline.7.asc
|
|
|
0738a69 |
@@ -863,6 +863,11 @@ ZNET
|
|
|
0738a69 |
RHEL/Fedora with ccw_init, which is called from udev for certain
|
|
|
0738a69 |
devices on z-series.
|
|
|
0738a69 |
rd.znet can be specified multiple times on the kernel command line.
|
|
|
0738a69 |
+
|
|
|
0738a69 |
+**rd.znet_ifname=**__<ifname>__:__<subchannels>__::
|
|
|
0738a69 |
+ Assign network device name <interface> (i.e. "bootnet") to the NIC
|
|
|
0738a69 |
+ corresponds to the subchannels. This is useful when dracut's default
|
|
|
0738a69 |
+ "ifname=" doesn't work due to device having a changing MAC address.
|
|
|
0738a69 |
+
|
|
|
0738a69 |
[listing]
|
|
|
0738a69 |
.Example
|
|
|
0738a69 |
diff --git a/modules.d/95znet/parse-ccw.sh b/modules.d/95znet/parse-ccw.sh
|
|
|
0738a69 |
index 7d40a1aa..59b588f3 100755
|
|
|
0738a69 |
--- a/modules.d/95znet/parse-ccw.sh
|
|
|
0738a69 |
+++ b/modules.d/95znet/parse-ccw.sh
|
|
|
0738a69 |
@@ -4,4 +4,22 @@ for ccw_arg in $(getargs rd.ccw -d 'rd_CCW=') $(getargs rd.znet -d 'rd_ZNET=');
|
|
|
0738a69 |
echo $ccw_arg >> /etc/ccw.conf
|
|
|
0738a69 |
done
|
|
|
0738a69 |
|
|
|
0738a69 |
+for ifname in $(getargs rd.znet_ifname); do
|
|
|
0738a69 |
+ IFS=: read ifname_if ifname_subchannels _rest <<< "$ifname"
|
|
|
0738a69 |
+ if [ -z "$ifname_if" ] || [ -z "$ifname_subchannels" ] || [ -n "$_rest" ]; then
|
|
|
0738a69 |
+ warn "Invalid arguments for rd.znet_ifname="
|
|
|
0738a69 |
+ else
|
|
|
0738a69 |
+ {
|
|
|
0738a69 |
+ ifname_subchannels=${ifname_subchannels//,/|}
|
|
|
0738a69 |
+
|
|
|
0738a69 |
+ echo 'ACTION!="add|change", GOTO="ccw_ifname_end"'
|
|
|
0738a69 |
+ echo 'ATTR{type}!="1", GOTO="ccw_ifname_end"'
|
|
|
0738a69 |
+ echo 'SUBSYSTEM!="net", GOTO="ccw_ifname_end"'
|
|
|
0738a69 |
+ echo "SUBSYSTEMS==\"ccwgroup\", KERNELS==\"$ifname_subchannels\", DRIVERS==\"?*\" NAME=\"$ifname_if\""
|
|
|
0738a69 |
+ echo 'LABEL="ccw_ifname_end"'
|
|
|
0738a69 |
+
|
|
|
0738a69 |
+ } > /etc/udev/rules.d/81-ccw-ifname.rules
|
|
|
0738a69 |
+ fi
|
|
|
0738a69 |
+done
|
|
|
0738a69 |
+
|
|
|
0738a69 |
znet_cio_free
|
|
|
0738a69 |
|