mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 09:59:32 +00:00
net: mvneta: fix mvneta_config_rss on armada 3700
The mvneta Ethernet driver is used on a few different Marvell SoCs.
Some SoCs have per cpu interrupts for Ethernet events, the driver uses
a per CPU napi structure for this case. Some SoCs such as armada 3700
have a single interrupt for Ethernet events, the driver uses a global
napi structure for this case.
Current mvneta_config_rss() always operates the per cpu napi structure.
Fix it by operating a global napi for "single interrupt" case, and per
cpu napi structure for remaining cases.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Fixes: 2636ac3cc2
("net: mvneta: Add network support for Armada 3700 SoC")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
0d86caff06
commit
0f5c6c30a0
1 changed files with 20 additions and 11 deletions
|
@ -4107,13 +4107,18 @@ static int mvneta_config_rss(struct mvneta_port *pp)
|
||||||
|
|
||||||
on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
|
on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
|
||||||
|
|
||||||
/* We have to synchronise on the napi of each CPU */
|
if (!pp->neta_armada3700) {
|
||||||
for_each_online_cpu(cpu) {
|
/* We have to synchronise on the napi of each CPU */
|
||||||
struct mvneta_pcpu_port *pcpu_port =
|
for_each_online_cpu(cpu) {
|
||||||
per_cpu_ptr(pp->ports, cpu);
|
struct mvneta_pcpu_port *pcpu_port =
|
||||||
|
per_cpu_ptr(pp->ports, cpu);
|
||||||
|
|
||||||
napi_synchronize(&pcpu_port->napi);
|
napi_synchronize(&pcpu_port->napi);
|
||||||
napi_disable(&pcpu_port->napi);
|
napi_disable(&pcpu_port->napi);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
napi_synchronize(&pp->napi);
|
||||||
|
napi_disable(&pp->napi);
|
||||||
}
|
}
|
||||||
|
|
||||||
pp->rxq_def = pp->indir[0];
|
pp->rxq_def = pp->indir[0];
|
||||||
|
@ -4130,12 +4135,16 @@ static int mvneta_config_rss(struct mvneta_port *pp)
|
||||||
mvneta_percpu_elect(pp);
|
mvneta_percpu_elect(pp);
|
||||||
spin_unlock(&pp->lock);
|
spin_unlock(&pp->lock);
|
||||||
|
|
||||||
/* We have to synchronise on the napi of each CPU */
|
if (!pp->neta_armada3700) {
|
||||||
for_each_online_cpu(cpu) {
|
/* We have to synchronise on the napi of each CPU */
|
||||||
struct mvneta_pcpu_port *pcpu_port =
|
for_each_online_cpu(cpu) {
|
||||||
per_cpu_ptr(pp->ports, cpu);
|
struct mvneta_pcpu_port *pcpu_port =
|
||||||
|
per_cpu_ptr(pp->ports, cpu);
|
||||||
|
|
||||||
napi_enable(&pcpu_port->napi);
|
napi_enable(&pcpu_port->napi);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
napi_enable(&pp->napi);
|
||||||
}
|
}
|
||||||
|
|
||||||
netif_tx_start_all_queues(pp->dev);
|
netif_tx_start_all_queues(pp->dev);
|
||||||
|
|
Loading…
Reference in a new issue