From: Rafał Miłecki Date: Fri, 26 Feb 2021 13:20:38 +0000 (+0100) Subject: net: broadcom: bcm4908_enet: enable RX after processing packets X-Git-Tag: v5.12-rc3~39^2~81 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d313d16bbaea0f11a2e98f04a6c678b43c208915;p=linux-platform-drivers-x86.git net: broadcom: bcm4908_enet: enable RX after processing packets When receiving a lot of packets hardware may run out of free descriptiors and stop RX ring. Enable it every time after handling received packets. Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") Signed-off-by: Rafał Miłecki Acked-by: Florian Fainelli Link: https://lore.kernel.org/r/20210226132038.29849-1-zajec5@gmail.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c index 0b70e9e0ddad..98cf82dea3e4 100644 --- a/drivers/net/ethernet/broadcom/bcm4908_enet.c +++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c @@ -592,6 +592,9 @@ static int bcm4908_enet_poll(struct napi_struct *napi, int weight) bcm4908_enet_intrs_on(enet); } + /* Hardware could disable ring if it run out of descriptors */ + bcm4908_enet_dma_rx_ring_enable(enet, &enet->rx_ring); + return handled; }