This patch series represents my respun version of the GSO partial work. The major changes from the first version is that we are no longer making the decision to mangle IP IDs transparently at the device. Instead it is now pushed up to the tunnel layer itself so that the tunnel is not responsible for deciding if the IP IDs will be static or fixed for a given TSO.
I'm a bit jammed up at the moment as I am trying to determine the best spot to make the same change I currently am for VXLAN and GENEVE with GRE and IPIP tunnels. I'm assuming the correct spot would be somewhere near iptunnel_handle_offload as I did for the other two tunnel types I have already updated, but the flow based tunnels for GRE seem to be making it a bit more complicated as I am not sure if a tunnel dev actually exists for those tunnels. This patch series is meant to apply to the dev-queue branch Jeff Kirsher's next-queue tree at: https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git I chose his tree as the Intel driver patches would not apply otherwise. Patch 1 from the series is a copy of the patch recently accepted for the net tree. It is needed in this series to avoid merge conflicts later on as we were making other changes in the GRO code. --- Alexander Duyck (11): GRE: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU ethtool: Add support for toggling any of the GSO offloads GSO: Add GSO type for fixed IPv4 ID GRO: Add support for TCP with fixed IPv4 ID field, limit tunnel IP ID values GSO: Support partial segmentation offload VXLAN: Add option to mangle IP IDs on inner headers when using TSO GENEVE: Add option to mangle IP IDs on inner headers when using TSO Documentation: Add documentation for TSO and GSO features i40e/i40evf: Add support for GSO partial with UDP_TUNNEL_CSUM and GRE_CSUM ixgbe/ixgbevf: Add support for GSO partial igb/igbvf: Add support for GSO partial Documentation/networking/segmentation-offloads.txt | 127 ++++++++++++++ drivers/net/ethernet/intel/i40e/i40e_main.c | 6 + drivers/net/ethernet/intel/i40e/i40e_txrx.c | 7 + drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 7 + drivers/net/ethernet/intel/i40evf/i40evf_main.c | 6 + drivers/net/ethernet/intel/igb/igb_main.c | 119 ++++++++++--- drivers/net/ethernet/intel/igbvf/netdev.c | 180 ++++++++++++-------- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 115 +++++++++---- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 122 +++++++++++--- drivers/net/geneve.c | 24 ++- drivers/net/vxlan.c | 16 ++ include/linux/netdev_features.h | 8 + include/linux/netdevice.h | 11 + include/linux/skbuff.h | 27 ++- include/net/udp_tunnel.h | 8 - include/net/vxlan.h | 1 include/uapi/linux/if_link.h | 2 net/core/dev.c | 33 ++++ net/core/ethtool.c | 4 net/core/skbuff.c | 29 +++ net/ipv4/af_inet.c | 70 ++++++-- net/ipv4/fou.c | 6 + net/ipv4/gre_offload.c | 35 +++- net/ipv4/ip_gre.c | 13 + net/ipv4/tcp_offload.c | 30 +++ net/ipv4/udp_offload.c | 27 ++- net/ipv6/ip6_offload.c | 21 ++ 27 files changed, 837 insertions(+), 217 deletions(-) create mode 100644 Documentation/networking/segmentation-offloads.txt --
