From: "Rafał Miłecki" <zajec5@gmail.com>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, "Florian Fainelli" <f.fainelli@gmail.com>,
bcm-kernel-feedback-list@broadcom.com,
"Rafał Miłecki" <rafal@milecki.pl>
Subject: [PATCH net] net: broadcom: bcm4908_enet: enable RX after processing packets
Date: Fri, 26 Feb 2021 14:20:38 +0100 [thread overview]
Message-ID: <20210226132038.29849-1-zajec5@gmail.com> (raw)
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
next reply other threads:[~2021-02-26 13:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 13:20 Rafał Miłecki [this message]
2021-02-27 16:38 ` [PATCH net] net: broadcom: bcm4908_enet: enable RX after processing packets Florian Fainelli
2021-02-28 19:54 ` Jakub Kicinski
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