37 lines
1.2 KiB
Diff
37 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
|
||
|
|
@@ -3835,6 +3835,16 @@ static int mvneta_ethtool_get_rxfh(struc
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
+static u16 mvneta_select_queue(struct net_device *dev, struct sk_buff *skb,
|
||
|
|
+ void *accel_priv,
|
||
|
|
+ select_queue_fallback_t fallback)
|
||
|
|
+{
|
||
|
|
+ /* XXX: hardware queue scheduling is broken,
|
||
|
|
+ * use only one queue until it is fixed */
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+
|
||
|
|
static const struct net_device_ops mvneta_netdev_ops = {
|
||
|
|
.ndo_open = mvneta_open,
|
||
|
|
.ndo_stop = mvneta_stop,
|
||
|
|
@@ -3845,6 +3855,7 @@ static const struct net_device_ops mvnet
|
||
|
|
.ndo_fix_features = mvneta_fix_features,
|
||
|
|
.ndo_get_stats64 = mvneta_get_stats64,
|
||
|
|
.ndo_do_ioctl = mvneta_ioctl,
|
||
|
|
+ .ndo_select_queue = mvneta_select_queue,
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct ethtool_ops mvneta_eth_tool_ops = {
|