netdev - [PATCH bpf-next 0/5] nfp: bpf: adjust head support

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Message-Id: <20171215052919.18343-1-jakub.kicinski@netronome.com>
Date:   Thu, 14 Dec 2017 21:29:14 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     netdev@...r.kernel.org
Cc:     oss-drivers@...ronome.com, daniel@...earbox.net,
        alexei.starovoitov@...il.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH bpf-next 0/5] nfp: bpf: adjust head support

Hi!

This small set adds support for bpf_xdp_adjust_head() to the offload.
Since we have access to unmodified BPF bytecode translating calls is
pretty trivial.  First part of the series adds handling of BPF
capabilities included in the FW in TLV format.  The last two patches
add adjust head support in the nfp verifier and jit, and a small
optimization in case we can guarantee the constant adjustment
will always meet adjustment constaints.


Jakub Kicinski (5):
  nfp: add nfp_cpp_area_size() accessor
  nfp: bpf: prepare for parsing BPF FW capabilities
  nfp: bpf: prepare for call support
  nfp: bpf: add basic support for adjust head call
  nfp: bpf: optimize the adjust_head calls in trivial cases

 drivers/net/ethernet/netronome/nfp/bpf/fw.h        |  54 ++++++++++
 drivers/net/ethernet/netronome/nfp/bpf/jit.c       | 107 +++++++++++++++++++
 drivers/net/ethernet/netronome/nfp/bpf/main.c      | 115 +++++++++++++++++++++
 drivers/net/ethernet/netronome/nfp/bpf/main.h      |  30 ++++++
 drivers/net/ethernet/netronome/nfp/bpf/offload.c   |   2 +
 drivers/net/ethernet/netronome/nfp/bpf/verifier.c  |  70 +++++++++++++
 drivers/net/ethernet/netronome/nfp/nfp_asm.h       |   2 +
 .../net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h   |   1 +
 .../ethernet/netronome/nfp/nfpcore/nfp_cppcore.c   |  11 ++
 9 files changed, 392 insertions(+)
 create mode 100644 drivers/net/ethernet/netronome/nfp/bpf/fw.h

-- 
2.15.1