[PATCH v2] mvebu: fill additional info for mvneta tx queue workaround patch
Tomasz Maciej Nowak
tmn505 at terefe.re
Mon Feb 26 08:26:42 PST 2024
From: Tomasz Maciej Nowak <tmn505 at gmail.com>
Because some still unresolved bugs in this driver, which sprout
occasional questions what this patch works around, point to the issue
which started this. Being here, fill headers required by git am.
Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>
---
v1 -> v2
- rebase
.../mvebu/patches-6.1/700-mvneta-tx-queue-workaround.patch | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/target/linux/mvebu/patches-6.1/700-mvneta-tx-queue-workaround.patch b/target/linux/mvebu/patches-6.1/700-mvneta-tx-queue-workaround.patch
index 918132e2936c..14f93592fe3a 100644
--- a/target/linux/mvebu/patches-6.1/700-mvneta-tx-queue-workaround.patch
+++ b/target/linux/mvebu/patches-6.1/700-mvneta-tx-queue-workaround.patch
@@ -1,3 +1,6 @@
+From: Felix Fietkau <nbd at nbd.name>
+Subject: mvneta: tx queue workaround
+
The hardware queue scheduling is apparently configured with fixed
priorities, which creates a nasty fairness issue where traffic from one
CPU can starve traffic from all other CPUs.
@@ -5,6 +8,8 @@ CPU can starve traffic from all other CPUs.
Work around this issue by forcing all tx packets to go through one CPU,
until this issue is fixed properly.
+Ref: https://github.com/openwrt/openwrt/issues/5411
+
Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
--- a/drivers/net/ethernet/marvell/mvneta.c
--
2.44.0
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