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authorRonny Kotzschmar <ro.ok@me.com>2022-07-06 15:14:21 +0200
committerChristian Marangi <ansuelsmth@gmail.com>2022-07-15 07:05:16 +0200
commit01b8cd32003408ba3aab7a48b0ffa90b5b720f0d (patch)
treefa93c73a62e153ad15fad574ca1e2a61e86362b0 /target/linux/rockchip
parent4fb05e45df7931ebe05dc0b42d781ad3d0a59404 (diff)
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rockchip: reliably distribute net interrupts
On the NanoPI R4S it takes an average of 3..5 seconds for the network devices to appear in '/proc/interrupts'. Wait up to 10 seconds to ensure that the distribution of the interrupts really happens. Signed-off-by: Ronny Kotzschmar <ro.ok@me.com> (cherry picked from commit 9b00e9795660f53caf1f4f5fd932bbbebd2eeeb1)
Diffstat (limited to 'target/linux/rockchip')
-rw-r--r--target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity11
1 files changed, 9 insertions, 2 deletions
diff --git a/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity
index 9e4a4cf4fc..c76e62a23a 100644
--- a/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity
+++ b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity
@@ -4,8 +4,15 @@
get_device_irq() {
local device="$1"
-
- local line=$(grep -m 1 "${device}\$" /proc/interrupts)
+ local line
+ local seconds="0"
+
+ # wait up to 10 seconds for the irq/device to appear
+ while [ "${seconds}" -le 10 ]; do
+ line=$(grep -m 1 "${device}\$" /proc/interrupts) && break
+ seconds="$(( seconds + 2 ))"
+ sleep 2
+ done
echo ${line} | sed 's/:.*//'
}