[PATCH net] net: broadcom: bcm4908_enet: enable RX after processing packets
flat view
STALE2073d
LANDED
From: Rafał Miłecki <zajec5@gmail.com>
Date: 2021-02-26 13:21:51
Subsystem:
broadcom bcm4908 ethernet driver, networking drivers, the rest · Maintainers:
Rafał Miłecki, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Status: Landed in mainline as d313d16bbaea on 2021-02-28.
From: Rafał Miłecki <rafal@milecki.pl>
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 <rafal@milecki.pl>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 3 +++
1 file changed, 3 insertions(+)
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; }
--
2.26.2