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authorRussell King <rmk+kernel@armlinux.org.uk>2018-01-02 17:25:09 +0000
committerDavid S. Miller <davem@davemloft.net>2018-01-03 10:38:54 -0500
commit856b2cc560345c28733fefaad2d66eddd663848b (patch)
tree9f3e0685c90e2412b5c2604fa3cf4a9bc47fefde /drivers/net/ethernet/marvell
parent6d81f45145c1b24af32856d8a04922788537defd (diff)
downloadlinux-856b2cc560345c28733fefaad2d66eddd663848b.tar.bz2
net: mvneta: disable MVNETA_CAUSE_PSC_SYNC_CHANGE interrupt
The PSC sync change interrupt can fire multiple times while the link is down, which is caused by noise on the serdes lines. As this isn't information we make use of, it's pointless having the interrupt enabled. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell')
-rw-r--r--drivers/net/ethernet/marvell/mvneta.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 44d665887b50..6a018cfa36f6 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2704,8 +2704,7 @@ static int mvneta_poll(struct napi_struct *napi, int budget)
mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0);
if (cause_misc & (MVNETA_CAUSE_PHY_STATUS_CHANGE |
- MVNETA_CAUSE_LINK_CHANGE |
- MVNETA_CAUSE_PSC_SYNC_CHANGE))
+ MVNETA_CAUSE_LINK_CHANGE))
mvneta_link_change(pp);
}
@@ -3044,8 +3043,7 @@ static void mvneta_start_dev(struct mvneta_port *pp)
mvreg_write(pp, MVNETA_INTR_MISC_MASK,
MVNETA_CAUSE_PHY_STATUS_CHANGE |
- MVNETA_CAUSE_LINK_CHANGE |
- MVNETA_CAUSE_PSC_SYNC_CHANGE);
+ MVNETA_CAUSE_LINK_CHANGE);
phylink_start(pp->phylink);
netif_tx_start_all_queues(pp->dev);
@@ -3570,8 +3568,7 @@ static int mvneta_cpu_online(unsigned int cpu, struct hlist_node *node)
on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
mvreg_write(pp, MVNETA_INTR_MISC_MASK,
MVNETA_CAUSE_PHY_STATUS_CHANGE |
- MVNETA_CAUSE_LINK_CHANGE |
- MVNETA_CAUSE_PSC_SYNC_CHANGE);
+ MVNETA_CAUSE_LINK_CHANGE);
netif_tx_start_all_queues(pp->dev);
spin_unlock(&pp->lock);
return 0;
@@ -3612,8 +3609,7 @@ static int mvneta_cpu_dead(unsigned int cpu, struct hlist_node *node)
on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
mvreg_write(pp, MVNETA_INTR_MISC_MASK,
MVNETA_CAUSE_PHY_STATUS_CHANGE |
- MVNETA_CAUSE_LINK_CHANGE |
- MVNETA_CAUSE_PSC_SYNC_CHANGE);
+ MVNETA_CAUSE_LINK_CHANGE);
netif_tx_start_all_queues(pp->dev);
return 0;
}