netdev - Re: [PATCH bpf-next v2 00/11] bpf: offload: program and map sharing

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Date:   Wed, 18 Jul 2018 15:22:22 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        alexei.starovoitov@...il.com
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com
Subject: Re: [PATCH bpf-next v2 00/11] bpf: offload: program and map sharing

On 07/17/2018 07:53 PM, Jakub Kicinski wrote:
> Hi!
> 
> This patchset adds support for sharing BPF objects within one ASIC.
> This will allow us to reuse of the same program on multiple ports of
> a device leading to better code store utilization.  It also enables
> sharing maps between programs attached to different ports of a device.
> 
> v2:
>  - rename bpf_offload_match() to bpf_offload_prog_map_match();
>  - add split patches 7 into 5, 7 and 8.
> 
> Jakub Kicinski (11):
>   netdevsim: add switch_id attribute
>   netdevsim: add shared netdevsim devices
>   netdevsim: associate bound programs with shared dev
>   nfp: add .ndo_init() and .ndo_uninit() callbacks
>   bpf: offload: rename bpf_offload_dev_match() to
>     bpf_offload_prog_map_match()
>   bpf: offload: aggregate offloads per-device
>   bpf: offload: keep the offload state per-ASIC
>   bpf: offload: allow program and map sharing per-ASIC
>   netdevsim: allow program sharing between devices
>   nfp: bpf: allow program sharing within ASIC
>   selftests/bpf: add test for sharing objects between netdevs
> 
>  drivers/net/ethernet/netronome/nfp/bpf/main.c |  23 ++
>  drivers/net/ethernet/netronome/nfp/bpf/main.h |   4 +
>  .../net/ethernet/netronome/nfp/bpf/offload.c  |  10 +-
>  drivers/net/ethernet/netronome/nfp/nfp_app.c  |  17 ++
>  drivers/net/ethernet/netronome/nfp/nfp_app.h  |   8 +
>  .../ethernet/netronome/nfp/nfp_net_common.c   |   2 +
>  .../net/ethernet/netronome/nfp/nfp_net_repr.c |   2 +
>  drivers/net/netdevsim/bpf.c                   |  50 +++-
>  drivers/net/netdevsim/netdev.c                | 103 +++++++-
>  drivers/net/netdevsim/netdevsim.h             |  23 +-
>  include/linux/bpf.h                           |  11 +-
>  kernel/bpf/offload.c                          | 223 ++++++++++++++----
>  kernel/bpf/verifier.c                         |   2 +-
>  tools/testing/selftests/bpf/test_offload.py   | 151 +++++++++++-
>  14 files changed, 544 insertions(+), 85 deletions(-)

Applied to bpf-next, thanks Jakub!