netdev - [jkirsher/next-queue PATCH v2 0/7] Add support for L2 Fwd Offload w/o ndo_select

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Message-ID: <20180612151322.86792.97587.stgit@ahduyck-green-test.jf.intel.com>
Date:   Tue, 12 Jun 2018 11:18:25 -0400
From:   Alexander Duyck <alexander.h.duyck@...el.com>
To:     intel-wired-lan@...osl.org, jeffrey.t.kirsher@...el.com,
        netdev@...r.kernel.org
Subject: [jkirsher/next-queue PATCH v2 0/7] Add support for L2 Fwd Offload
 w/o ndo_select_queue

This patch series is meant to allow support for the L2 forward offload, aka
MACVLAN offload without the need for using ndo_select_queue.

The existing solution currently requires that we use ndo_select_queue in
the transmit path if we want to associate specific Tx queues with a given
MACVLAN interface. In order to get away from this we need to repurpose the
tc_to_txq array and XPS pointer for the MACVLAN interface and use those as
a means of accessing the queues on the lower device. As a result we cannot
offload a device that is configured as multiqueue, however it doesn't
really make sense to configure a macvlan interfaced as being multiqueue
anyway since it doesn't really have a qdisc of its own in the first place.

I am submitting this as an RFC for the netdev mailing list, and officially
submitting it for testing to Jeff Kirsher's next-queue in order to validate
the ixgbe specific bits.

The big changes in this set are:
  Allow lower device to update tc_to_txq and XPS map of offloaded MACVLAN
  Disable XPS for single queue devices
  Replace accel_priv with sb_dev in ndo_select_queue
  Add sb_dev parameter to fallback function for ndo_select_queue
  Consolidated ndo_select_queue functions that appeared to be duplicates

v2: Implement generic "select_queue" functions instead of "fallback" functions.
    Tweak last two patches to account for changes in dev_pick_tx_xxx functions.

---

Alexander Duyck (7):
      net-sysfs: Drop support for XPS and traffic_class on single queue device
      net: Add support for subordinate device traffic classes
      ixgbe: Add code to populate and use macvlan tc to Tx queue map
      net: Add support for subordinate traffic classes to netdev_pick_tx
      net: Add generic ndo_select_queue functions
      net: allow ndo_select_queue to pass netdev
      net: allow fallback function to pass netdev


 drivers/infiniband/hw/hfi1/vnic_main.c            |    2 
 drivers/infiniband/ulp/opa_vnic/opa_vnic_netdev.c |    4 -
 drivers/net/bonding/bond_main.c                   |    3 
 drivers/net/ethernet/amazon/ena/ena_netdev.c      |    5 -
 drivers/net/ethernet/broadcom/bcmsysport.c        |    6 -
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   |    6 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h   |    3 
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c   |    5 -
 drivers/net/ethernet/hisilicon/hns/hns_enet.c     |    5 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c     |   62 ++++++--
 drivers/net/ethernet/lantiq_etop.c                |   10 -
 drivers/net/ethernet/mellanox/mlx4/en_tx.c        |    7 +
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h      |    3 
 drivers/net/ethernet/mellanox/mlx5/core/en.h      |    3 
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c   |    5 -
 drivers/net/ethernet/renesas/ravb_main.c          |    3 
 drivers/net/ethernet/sun/ldmvsw.c                 |    3 
 drivers/net/ethernet/sun/sunvnet.c                |    3 
 drivers/net/ethernet/ti/netcp_core.c              |    9 -
 drivers/net/hyperv/netvsc_drv.c                   |    6 -
 drivers/net/macvlan.c                             |   10 -
 drivers/net/net_failover.c                        |    7 +
 drivers/net/team/team.c                           |    3 
 drivers/net/tun.c                                 |    3 
 drivers/net/wireless/marvell/mwifiex/main.c       |    3 
 drivers/net/xen-netback/interface.c               |    4 -
 drivers/net/xen-netfront.c                        |    3 
 drivers/staging/netlogic/xlr_net.c                |    9 -
 drivers/staging/rtl8188eu/os_dep/os_intfs.c       |    3 
 drivers/staging/rtl8723bs/os_dep/os_intfs.c       |    7 -
 include/linux/netdevice.h                         |   34 ++++-
 net/core/dev.c                                    |  156 ++++++++++++++++++---
 net/core/net-sysfs.c                              |   36 ++++-
 net/mac80211/iface.c                              |    4 -
 net/packet/af_packet.c                            |    7 +
 35 files changed, 312 insertions(+), 130 deletions(-)

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