RFC Flow actions to mutate packets

From: Leon Romanovsky <[email protected]>

Hi,

This series from Mark is marked as RFC due to the fact that it is under final stages of internal review - commit messages, patch reordering and internal agreement if "{net, RDMA}/mlx5: Rename encap to reformat packet" is needed.

Because the main logic and functionality are not expected to change, we would like to post it the mailing list and gather broader feedback than we can achieve internally.

We will resubmit it without RFC tag once review will complete.

Thanks

------------------------------------------------------------------------

This series exposes the ability to create flow actions which can mutate packet headers. We do that by exposing two new verbs:
* modify header - can change existing packet headers. packet
* reformat - can encapsulate or decapsulate a packet.
Once created a flow action must be attached to a steering rule for it to take effect.

Thanks

Mark Bloch (18):
net/mlx5: Add proper NIC TX steering flow tables support net/mlx5: Export modify header alloc/dealloc functions net/mlx5: Add support for more namespaces when allocating modify
header
net/mlx5: Break encap/decap into two separated flags net/mlx5: Move header encap type to IFC header file
{net, RDMA}/mlx5: Rename encap to reformat packet net/mlx5: Expose new packet reformat capabilities net/mlx5: Allow passing a namespace on packet reformat allocation net/mlx5: Export packet reformat alloc/dealloc functions RDMA/mlx5: Add NIC TX steering support
RDMA/mlx5: Add a new flow action verb, modify header RDMA/mlx5: Enable attaching modify header to steering flows RDMA/mlx5: Enable decap and packet reformat on flow tables RDMA/uverbs: Add generic function to fill in flow action object RDMA/mlx5: Add new flow action verb, packet reformat RDMA/mlx5: Enable attaching DECAP action to steering flows RDMA/mlx5: Extend packet reformat verbs
RDMA/mlx5: Enable attaching packet reformat action to steering flows

 .../infiniband/core/uverbs_std_types_flow_action.c |   7 +-
 drivers/infiniband/hw/mlx5/devx.c                  |   6 +-
 drivers/infiniband/hw/mlx5/flow.c                  | 280 +++++++++++++++++++++
 drivers/infiniband/hw/mlx5/main.c                  |  65 +++--
 drivers/infiniband/hw/mlx5/mlx5_ib.h               |  14 ++
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c      |   8 +-
 .../mellanox/mlx5/core/diag/fs_tracepoint.h        |   2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.h   |   2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c    |  54 ++--
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c  |   2 +-
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.h  |   2 +-
 .../ethernet/mellanox/mlx5/core/eswitch_offloads.c |   9 +-
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c   |  87 ++++---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c  |  57 +++--
 .../net/ethernet/mellanox/mlx5/core/mlx5_core.h    |  11 -
 include/linux/mlx5/device.h                        |   6 +
 include/linux/mlx5/fs.h                            |  20 +-
 include/linux/mlx5/mlx5_ifc.h                      |  71 ++++--
 include/rdma/uverbs_std_types.h                    |  12 +
 include/uapi/rdma/mlx5_user_ioctl_cmds.h           |  18 ++
 include/uapi/rdma/mlx5_user_ioctl_verbs.h          |  12 +
 21 files changed, 591 insertions(+), 154 deletions(-)