From: Stephen Hemminger <shemminger@vyatta•com>
To: davem@davemloft•net
Cc: netdev@vger•kernel.org
Subject: [PATCHv2 6/8] vxlan: add additional headroom
Date: Tue, 09 Oct 2012 23:35:51 -0700 [thread overview]
Message-ID: <20121010063623.783001791@vyatta.com> (raw)
In-Reply-To: 20121010063545.453368147@vyatta.com
[-- Attachment #1: vxlan-more-headroom.patch --]
[-- Type: text/plain, Size: 543 bytes --]
Tell upper layer protocols to allocate skb with additional headroom.
This avoids allocation and copy in local packet sends.
Signed-off-by: Stephen Hemminger <shemminger@vyatta•com>
--- a/drivers/net/vxlan.c 2012-10-09 18:08:35.086431755 -0700
+++ b/drivers/net/vxlan.c 2012-10-09 18:08:36.862414133 -0700
@@ -983,6 +983,7 @@ static void vxlan_setup(struct net_devic
eth_hw_addr_random(dev);
ether_setup(dev);
+ dev->hard_header_len = ETH_HLEN + VXLAN_HEADROOM;
dev->netdev_ops = &vxlan_netdev_ops;
dev->destructor = vxlan_free;
next prev parent reply other threads:[~2012-10-10 6:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-10 6:35 [PATCHv2 0/8] vxlan: bug fixes Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 1/8] vxlan: minor output refactoring Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 2/8] vxlan: fix byte order in hash function Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 3/8] vxlan: use ip_route_output Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 4/8] vxlan: associate with tunnel socket on transmit Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 5/8] vxlan: allow configuring port range Stephen Hemminger
2012-10-10 6:41 ` [PATCH] iproute2: allow configuring vxlan " Stephen Hemminger
2012-10-10 6:35 ` Stephen Hemminger [this message]
2012-10-10 6:35 ` [PATCHv2 7/8] vxlan: fix receive checksum handling Stephen Hemminger
2012-10-10 6:35 ` [PATCHv2 8/8] vxlan: fix oops when give unknown ifindex Stephen Hemminger
2012-10-11 2:42 ` [PATCHv2 0/8] vxlan: bug fixes David Miller
2012-10-11 14:59 ` Stephen Hemminger
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