linux/net/8021q
Vlad Yasevich 8403debeea vlan: Keep NETIF_F_HW_CSUM similar to other software devices
Vlan devices, like all other software devices, enable
NETIF_F_HW_CSUM feature.  However, unlike all the othe other
software devices, vlans will switch to using IP|IPV6_CSUM
features, if the underlying devices uses them.  In these situations,
checksum offload features on the vlan device can't be controlled
via ethtool.

This patch makes vlans keep HW_CSUM feature if the underlying
device supports checksum offloading.  This makes vlan devices
behave like other software devices, and restores control to the
user.

A side-effect is that some offload settings (typically UFO)
may be enabled on the vlan device while being disabled on the HW.
However, the GSO code will correctly process the packets. This
actually results in slightly better raw throughput.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-08 14:39:19 -04:00
..
Kconfig 8021q: update description 2014-01-21 17:01:25 -08:00
Makefile net/8021q: Implement Multiple VLAN Registration Protocol (MVRP) 2013-02-10 20:37:22 -05:00
vlan.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
vlan.h netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
vlan_core.c vlan: Do not put vlan headers back on bridge and macvlan ports 2015-11-17 14:38:35 -05:00
vlan_dev.c vlan: Keep NETIF_F_HW_CSUM similar to other software devices 2017-05-08 14:39:19 -04:00
vlan_gvrp.c net: vlan: prepare for 802.1ad support 2013-04-19 14:45:27 -04:00
vlan_mvrp.c net: vlan: prepare for 802.1ad support 2013-04-19 14:45:27 -04:00
vlan_netlink.c netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
vlanproc.c vlan: change return type of vlan_proc_rem_dev 2016-02-17 22:06:28 -05:00
vlanproc.h vlan: change return type of vlan_proc_rem_dev 2016-02-17 22:06:28 -05:00