mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
7b31c2e9ed
Backport Russell King's series [1] net: mvneta: reduce size of TSO header allocation to pending-5.15 to fix random crashes on Turris Omnia. This also backports two patches that are dependencies to this series: net: mvneta: Delete unused variable net: mvneta: fix potential double-frees in mvneta_txq_sw_deinit() [1] https://lore.kernel.org/netdev/ZCsbJ4nG+So%2Fn9qY@shell.armlinux.org.uk/ Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: Christian Lamparter <chunkeey@gmail.com> (squashed)
39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
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
|
|
@@ -5006,6 +5006,16 @@ static int mvneta_setup_tc(struct net_de
|
|
}
|
|
}
|
|
|
|
+#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,
|
|
@@ -5016,6 +5026,9 @@ static const struct net_device_ops mvnet
|
|
.ndo_fix_features = mvneta_fix_features,
|
|
.ndo_get_stats64 = mvneta_get_stats64,
|
|
.ndo_eth_ioctl = mvneta_ioctl,
|
|
+#ifndef CONFIG_ARM64
|
|
+ .ndo_select_queue = mvneta_select_queue,
|
|
+#endif
|
|
.ndo_bpf = mvneta_xdp,
|
|
.ndo_xdp_xmit = mvneta_xdp_xmit,
|
|
.ndo_setup_tc = mvneta_setup_tc,
|