Some network driver will take long time to initialize. We have an example
in a HP machine which take about one minute for this. The callback such as
"ip link set <dev> up" will fail, afterwards setup for network will also
fail.
Fix this by add a new function wait_for_if_link, wait the link ready before
use it.
Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
---
modules.d/40network/net-lib.sh | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
--- dracut.orig/modules.d/40network/net-lib.sh
+++ dracut/modules.d/40network/net-lib.sh
@@ -323,6 +323,19 @@ parse_ifname_opts() {
}
+# some network driver need long time to initialize, wait before it's ready.
+wait_for_if_link() {
+ local cnt=0
+ local li
+ while [ $cnt -lt 600 ]; do
+ li=$(ip -o link show dev $1 2>/dev/null)
+ [ -n "$li" ] && return 0
+ sleep 0.1
+ cnt=$(($cnt+1))
+ done
+ return 1
+}
+
wait_for_if_up() {
local cnt=0
local li
@@ -347,6 +360,8 @@ wait_for_route_ok() {
}
linkup() {
- ip link set $1 up 2>/dev/null && wait_for_if_up $1 2>/dev/null
+ wait_for_if_link $1 2>/dev/null\
+ && ip link set $1 up 2>/dev/null\
+ && wait_for_if_up $1 2>/dev/null
}
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