[openwrt/openwrt] mvebu: limit mvneta tx queue workaround to 32 bit SoC

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/601864c09eae5b22620bc7942ceae13c2f081f1e

commit 601864c09eae5b22620bc7942ceae13c2f081f1e
Author: Tomasz Maciej Nowak <tmn505 at gmail.com>
AuthorDate: Mon Jul 12 18:16:30 2021 +0200

    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 <tmn505 at gmail.com>
    (cherry picked from commit cbdd2b62e4d5e0572204c37d874d32dc8610840e)
---
 .../linux/mvebu/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 a83d891ff8..201864eef1 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 <nbd at nbd.name>
 ---
 --- 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 <nbd at nbd.name>
 +	 * 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,
  };