Hi Dave, This series is a combination of netdev and RDMA, so in order to avoid conflicts, we would like to ask you to route this series through mlx5-next shared branch. It is based on v5.7-rc1 tag. --------------------------------------------------------------------- The following series adds support to get the LAG master xmit slave by introducing new .ndo - ndo_xmit_slave_get. Every LAG module can implement it and it first implemented in the bond driver. This is follow-up to the RFC discussion [1]. The main motivation for doing this is for drivers that offload part of the LAG functionality. For example, Mellanox Connect-X hardware implements RoCE LAG which selects the TX affinity when the resources are created and port is remapped when it goes down. The first part of this patchset introduces the new .ndo and add the support to the bonding module. The second part adds support to get the RoCE LAG xmit slave by building skb of the RoCE packet based on the AH attributes and call to the new .ndo. The third part change the mlx5 driver driver to set the QP's affinity port according to the slave which found by the .ndo. Thanks [1] https://lore.kernel.org/netdev/20200126132126.9981-1-maorg@xxxxxxxxxxxx/ Change log: v3: 1. Move master_get_xmit_slave to netdevice.h and change the flags arg. to bool. 2. Split helper functions commit to multiple commits for each bond mode. 3. Extract refcotring changes to seperate commits. v2: The first patch wasn't sent in v1. v1: https://lore.kernel.org/netdev/ac373456-b838-29cf-645f-b1ea1a93e3b0@xxxxxxxxx/T/#t Maor Gottlieb (15): net/core: Introduce master_xmit_slave_get bonding: Export skip slave logic to function bonding: Rename slave_arr to usable_slaves bonding/alb: Add helper functions to get the xmit slave bonding: Add helper function to get the xmit slave based on hash bonding: Add helper function to get the xmit slave in rr mode bonding: Add function to get the xmit slave in active-backup mode bonding: Add array of all salves bonding: Implement ndo_get_xmit_slave RDMA/core: Add LAG functionality RDMA/core: Get xmit slave for LAG net/mlx5: Change lag mutex lock to spin lock net/mlx5: Add support to get lag physical port RDMA/mlx5: Refactor affinity related code RDMA/mlx5: Set lag tx affinity according to slave drivers/infiniband/core/Makefile | 2 +- drivers/infiniband/core/lag.c | 138 +++++++++ drivers/infiniband/core/verbs.c | 44 ++- drivers/infiniband/hw/mlx5/ah.c | 4 + drivers/infiniband/hw/mlx5/gsi.c | 34 ++- drivers/infiniband/hw/mlx5/main.c | 2 + drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 + drivers/infiniband/hw/mlx5/qp.c | 123 +++++--- drivers/net/bonding/bond_alb.c | 39 ++- drivers/net/bonding/bond_main.c | 270 +++++++++++++----- drivers/net/ethernet/mellanox/mlx5/core/lag.c | 66 +++-- include/linux/mlx5/driver.h | 2 + include/linux/mlx5/mlx5_ifc.h | 4 +- include/linux/mlx5/qp.h | 2 + include/linux/netdevice.h | 33 +++ include/net/bond_alb.h | 4 + include/net/bonding.h | 3 +- include/rdma/ib_verbs.h | 2 + include/rdma/lag.h | 22 ++ 19 files changed, 617 insertions(+), 178 deletions(-) create mode 100644 drivers/infiniband/core/lag.c create mode 100644 include/rdma/lag.h -- 2.17.2
