8403debeea
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> |
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README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.