mvebu: remove obsolete Kernel 5.4
[openwrt/openwrt.git] / target / linux / mvebu / patches-5.4 / 700-mvneta-tx-queue-workaround.patch
diff --git a/target/linux/mvebu/patches-5.4/700-mvneta-tx-queue-workaround.patch b/target/linux/mvebu/patches-5.4/700-mvneta-tx-queue-workaround.patch
deleted file mode 100644 (file)
index 201864e..0000000
+++ /dev/null
@@ -1,38 +0,0 @@
-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.
-
-Work around this issue by forcing all tx packets to go through one CPU,
-until this issue is fixed properly.
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
---- a/drivers/net/ethernet/marvell/mvneta.c
-+++ b/drivers/net/ethernet/marvell/mvneta.c
-@@ -4691,6 +4691,16 @@ static int mvneta_ethtool_set_eee(struct
-       return phylink_ethtool_set_eee(pp->phylink, eee);
- }
-+#ifndef CONFIG_ARM64
-+static u16 mvneta_select_queue(struct net_device *dev, struct sk_buff *skb,
-+                             struct net_device *sb_dev)
-+{
-+      /* XXX: hardware queue scheduling is broken,
-+       * use only one queue until it is fixed */
-+      return 0;
-+}
-+#endif
-+
- static const struct net_device_ops mvneta_netdev_ops = {
-       .ndo_open            = mvneta_open,
-       .ndo_stop            = mvneta_stop,
-@@ -4701,6 +4711,9 @@ static const struct net_device_ops mvnet
-       .ndo_fix_features    = mvneta_fix_features,
-       .ndo_get_stats64     = mvneta_get_stats64,
-       .ndo_do_ioctl        = mvneta_ioctl,
-+#ifndef CONFIG_ARM64
-+      .ndo_select_queue    = mvneta_select_queue,
-+#endif
-       .ndo_bpf             = mvneta_xdp,
-       .ndo_xdp_xmit        = mvneta_xdp_xmit,
- };