From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Duyck Subject: [jkirsher/next-queue PATCH 0/7] Add support for L2 Fwd Offload w/o ndo_select_queue Date: Mon, 11 Jun 2018 13:40:52 -0400 Message-ID: <20180611173003.41352.25621.stgit@ahduyck-green-test.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com Return-path: Received: from mga03.intel.com ([134.134.136.65]:14047 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933584AbeFKRsw (ORCPT ); Mon, 11 Jun 2018 13:48:52 -0400 Sender: netdev-owner@vger.kernel.org List-ID: 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 --- 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 | 32 ++++ net/core/dev.c | 154 ++++++++++++++++++--- net/core/net-sysfs.c | 36 +++++ net/mac80211/iface.c | 4 - net/packet/af_packet.c | 9 - 35 files changed, 306 insertions(+), 134 deletions(-)