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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