From 601864c09eae5b22620bc7942ceae13c2f081f1e Mon Sep 17 00:00:00 2001 From: Tomasz Maciej Nowak Date: Mon, 12 Jul 2021 18:16:30 +0200 Subject: [PATCH] mvebu: limit mvneta tx queue workaround to 32 bit SoC This patch has been carried since introduction throughout every kernel major bump and no one has tested if the later kernels improved the situation. The Armada 3720 SoC can only process GbE interrupts on Core 0 and this is already limited in all stable kernels, so ditch this workaround for 64 bit SoCs. Ref: https://git.kernel.org/torvalds/c/cf9bf871280d Signed-off-by: Tomasz Maciej Nowak (cherry picked from commit cbdd2b62e4d5e0572204c37d874d32dc8610840e) --- .../patches-5.4/700-mvneta-tx-queue-workaround.patch | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) 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 index a83d891ff86..201864eef12 100644 --- 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 @@ -9,10 +9,11 @@ Signed-off-by: Felix Fietkau --- --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c -@@ -4691,6 +4691,14 @@ static int mvneta_ethtool_set_eee(struct +@@ -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) +{ @@ -20,15 +21,18 @@ Signed-off-by: Felix Fietkau + * 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 +4709,7 @@ static const struct net_device_ops mvnet +@@ -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, }; -- 2.30.2