From: Stephen Hemminger <stephen@networkplumber•org>
To: David Miller <davem@davemloft•net>
Cc: Francois Romieu <romieu@fr•zoreil.com>, netdev@vger•kernel.org
Subject: [PATCH net 2/2] 8139cp: reset BQL when ring tx ring cleared
Date: Mon, 20 May 2013 09:54:43 -0700 [thread overview]
Message-ID: <20130520095443.2d18b2cb@nehalam.linuxnetplumber.net> (raw)
This patch cures transmit timeout's with DHCP observed
while running under KVM. When the transmit ring is cleaned out,
the Byte Queue Limit values need to be reset.
Signed-off-by: Stephen Hemminger <stephen@networkplumber•org>
--- a/drivers/net/ethernet/realtek/8139cp.c 2013-05-20 09:29:49.689900862 -0700
+++ b/drivers/net/ethernet/realtek/8139cp.c 2013-05-20 09:29:50.857880563 -0700
@@ -1141,6 +1141,7 @@ static void cp_clean_rings (struct cp_pr
cp->dev->stats.tx_dropped++;
}
}
+ netdev_reset_queue(cp->dev);
memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
next reply other threads:[~2013-05-20 16:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 16:54 Stephen Hemminger [this message]
2013-05-20 21:03 ` [PATCH net 2/2] 8139cp: reset BQL when ring tx ring cleared David Miller
2013-05-20 21:37 ` Francois Romieu
2013-05-21 0:27 ` Stephen Hemminger
2015-09-14 12:05 ` David Woodhouse
2015-09-14 21:59 ` Francois Romieu
2015-09-17 11:36 ` David Woodhouse
2015-09-17 15:06 ` David Woodhouse
2015-09-17 20:44 ` Francois Romieu
2015-09-17 22:14 ` David Woodhouse
2015-09-17 23:44 ` Francois Romieu
2015-09-18 1:04 ` David Woodhouse
2015-09-18 7:40 ` David Woodhouse
2015-09-18 22:42 ` David Woodhouse
2015-09-17 12:02 ` David Woodhouse
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