Hi,
I had to add this patch in older kernel version to make ethernet
working properly in a network where lot of multicast happens. This may
be required in recent versions too, but not sure whether this is
already handled in some other way.
commit 17dfd55f868df5df221cce23ad576bf25b6717fb
Author: Selvamuthukumar <selva.muthukumar@xxxxxxxxxxxx>
Date: Mon Jul 17 11:01:13 2017 +0530
net: ethernet: ti: davinci_emac: Recycle skb on rx if netif is not running
In network with too much multicast before PHY link is detected all the
queued skbs may be dropped, without queueing new buffers to DMA.
This change will make sure buffers are available for receive.
Signed-off-by: Selvamuthukumar <selva.muthukumar@xxxxxxxxxxxx>
diff --git a/drivers/net/ethernet/ti/davinci_emac.c
b/drivers/net/ethernet/ti/davinci_emac.c
index 64d5527..69fb48b 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -884,8 +884,7 @@ static void emac_rx_handler(void *token, int len,
int status)
/* free and bail if we are shutting down */
if (unlikely(!netif_running(ndev))) {
- dev_kfree_skb_any(skb);
- return;
+ goto recycle;
}
/* recycle on receive error */
--
Selva
--
--
With Warm Regards,
Selvamuthukumar Velmurugakadavul
VVDN Technologies Pvt Ltd
Cell : +91 9498036533 | Skype : vsmkumar_84
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