From: "Vitaly E. Lavrov" <lve@guap.ru>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net
Subject: [PATCH] veth: remove hardware checksum feature
Date: Thu, 25 Jul 2013 21:20:16 +0400 [thread overview]
Message-ID: <51F15E50.8080208@guap.ru> (raw)
The network device VETH can't support the feature NETIF_F_HW_CSUM.
All locally generated packets have invalid checksum.
Wrong commit http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8093315a91340bca52549044975d8c7f673b28a1 (
kernel 3.9.0 )
Workaround "ethtool -K vethX tx off"
Possible patch:
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 177f911..3db97da 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -254,7 +254,7 @@ static const struct net_device_ops veth_netdev_ops = {
};
#define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
- NETIF_F_HW_CSUM | NETIF_F_RXCSUM | NETIF_F_HIGHDMA | \
+ NETIF_F_RXCSUM | NETIF_F_HIGHDMA | \
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | \
NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_STAG_RX )
--
next reply other threads:[~2013-07-25 17:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-25 17:20 Vitaly E. Lavrov [this message]
2013-07-25 17:59 ` [PATCH] veth: remove hardware checksum feature Eric Dumazet
2013-08-08 0:07 ` Ben Greear
2013-08-08 0:12 ` Eric Dumazet
2013-08-08 0:23 ` Ben Greear
2013-08-08 1:08 ` Eric Dumazet
2013-08-08 1:54 ` Ben Greear
2013-08-08 2:52 ` Eric Dumazet
2013-08-08 19:43 ` Ben Greear
2013-08-08 20:16 ` Eric Dumazet
2013-08-08 22:13 ` Ben Greear
2013-08-08 22:20 ` Ben Greear
2013-08-08 22:22 ` Eric Dumazet
2013-08-08 22:35 ` Ben Greear
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