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bfd5f4a3d6
linux/net
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Sridhar Samudrala bfd5f4a3d6 packet: Add GSO/csum offload support. 
This patch adds GSO/checksum offload to af_packet sockets using
virtio_net_hdr. Based on Rusty's patch to add this support to tun.
It allows GSO/checksum offload to be enabled when using raw socket
backend with virtio_net.
Adds PACKET_VNET_HDR socket option to prepend virtio_net_hdr in the
receive path and process/skip virtio_net_hdr in the send path. This
option is only allowed with SOCK_RAW sockets attached to ethernet
type devices.

v2 updates
----------
Michael's Comments
- Perform length check in packet_snd() when GSO is off even when
  vnet_hdr is present.
- Check for SKB_GSO_FCOE type and return -EINVAL
- don't allow tx/rx ring when vnet_hdr is enabled.
Herbert's Comments
- Removed ethernet specific code.
- protocol value is assumed to be passed in by the caller.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-04 20:24:10 -08:00
..
9p 9p connect fixes 2009-12-16 12:16:41 -05:00
802 sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
8021q net: maintain namespace isolation between vlan and real device 2010-02-03 20:20:32 -08:00
appletalk appletalk:: da.s_net not copied but assigned to itself in aarp_rcv() 2010-01-15 01:49:28 -08:00
atm net/atm: Cleanup dprint/ddprintk #defines and uses 2010-01-26 21:16:05 -08:00
ax25 ax25: netrom: rose: Fix timer oopses 2010-01-16 01:04:04 -08:00
bluetooth Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-03 19:38:22 -08:00
bridge net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
can can: deny filterlist access on non-CAN interfaces 2010-02-02 07:21:34 -08:00
core net: maintain namespace isolation between vlan and real device 2010-02-03 20:20:32 -08:00
dcb net: Move && and || to end of previous line 2009-11-29 16:55:45 -08:00
dccp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-03 19:38:22 -08:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
dsa netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
econet net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ethernet llc: use dev_hard_header 2009-12-26 20:38:23 -08:00
ieee802154 net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ipv4 ipv4: obsolete config in kernel source (IP_ROUTE_PERVASIVE) 2010-02-04 14:58:46 -08:00
ipv6 netns xfrm: ipcomp6 support 2010-01-28 06:31:06 -08:00
ipx Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
irda NET: irda, remove unnecessary checks 2010-01-10 13:27:58 -08:00
iucv const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
key Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-03 19:38:22 -08:00
lapb net: remove NET_RX_BAD and NET_RX_CN* defines 2009-07-05 19:15:35 -07:00
llc llc: fix SAP reference counting w.r.t. socket handling 2009-12-26 20:47:23 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2010-02-04 08:58:14 -08:00
netfilter Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2010-02-02 09:04:58 -08:00
netlabel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
netlink Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-03 19:38:22 -08:00
netrom ax25: netrom: rose: Fix timer oopses 2010-01-16 01:04:04 -08:00
packet packet: Add GSO/csum offload support. 2010-02-04 20:24:10 -08:00
phonet net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
rds net/rds: remove uses of NIPQUAD, use %pI4 2010-02-03 20:16:48 -08:00
rfkill net/rfkill/core.c: work around gcc-4.0.2 silliness 2009-12-07 16:51:23 -05:00
rose ax25: netrom: rose: Fix timer oopses 2010-01-16 01:04:04 -08:00
rxrpc net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
sched sched: add head drop fifo queue 2010-01-28 21:27:00 -08:00
sctp net: constify MIB name tables 2010-01-23 01:21:27 -08:00
sunrpc Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 2010-01-08 13:55:14 -08:00
tipc tipc: Clean up configuration file 2010-01-19 14:23:57 -08:00
unix net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
wanrouter headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
wimax Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2010-02-04 08:58:14 -08:00
x25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
xfrm Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-01-28 06:12:38 -08:00
compat.c net: use compat helper functions in compat_sys_recvmmsg 2009-12-11 15:07:57 -08:00
Kconfig net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
Makefile net: remove redundant sched/ in net/Makefile 2009-07-12 20:11:14 -07:00
nonet.c
socket.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
sysctl_net.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
TUNABLE