84 lines
2.2 KiB
Diff
84 lines
2.2 KiB
Diff
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From c4f914a33ac07348245b865dd356c60459d81b42 Mon Sep 17 00:00:00 2001
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From: Daniel Molkentin <dmolkentin@suse.com>
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Date: Mon, 29 Jan 2018 08:58:31 -0500
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Subject: [PATCH] 95qeth_rules: Add new module to copy qeth rules
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Only pick rules for interfaces which have a carrier in the running
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system. Those interfaces will be assembled by udev to allow booting
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from those devices (i.e. iSCSI).
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Reference: FATE#323440
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---
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modules.d/95qeth_rules/module-setup.sh | 59 ++++++++++++++++++++++++++++++++++
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1 file changed, 59 insertions(+)
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create mode 100755 modules.d/95qeth_rules/module-setup.sh
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diff --git a/modules.d/95qeth_rules/module-setup.sh b/modules.d/95qeth_rules/module-setup.sh
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new file mode 100755
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index 00000000..d4d15118
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--- /dev/null
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+++ b/modules.d/95qeth_rules/module-setup.sh
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@@ -0,0 +1,59 @@
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+#!/bin/bash
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+
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+# called by dracut
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+check() {
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+ local _arch=$(uname -m)
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+ local _online=0
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+ [ "$_arch" = "s390" -o "$_arch" = "s390x" ] || return 1
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+ require_binaries /usr/lib/udev/collect || return 1
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+ dracut_module_included network || return 1
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+
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+ [[ $hostonly ]] && {
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+ for i in /sys/devices/qeth/*/online; do
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+ read _online < $i
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+ [ $_online -eq 1 ] && return 0
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+ done
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+ }
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+ return 255
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+}
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+
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+# called by dracut
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+installkernel() {
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+ instmods qeth
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+}
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+
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+# called by dracut
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+install() {
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+ ccwid() {
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+ qeth_path=$(readlink -e -q $1/device)
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+ basename "$qeth_path"
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+ }
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+
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+ inst_rules_qeth() {
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+ for rule in /etc/udev/rules.d/{4,5}1-qeth-${1}.rules; do
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+ # prefer chzdev generated 41- rules
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+ if [ -f "$rule" ]; then
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+ inst_rules "$rule"
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+ break
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+ fi
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+ done
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+ }
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+
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+ has_carrier() {
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+ carrier=0
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+ # not readable in qeth interfaces
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+ # that have just been assembled, ignore
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+ # read error and assume no carrier
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+ read carrier 2>/dev/null < "$1/carrier"
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+ [ "$carrier" -eq 1 ] && return 0
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+ return 1;
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+ }
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+
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+ for dev in /sys/class/net/*; do
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+ has_carrier $dev || continue
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+ id=$(ccwid $dev)
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+ [ -n "$id" ] && inst_rules_qeth $id
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+ done
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+
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+ inst_simple /usr/lib/udev/collect
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+}
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--
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2.13.6
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