netdev - pull-request: bpf-next 2018-01-11

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Message-Id: <20180111021313.3116-1-daniel@iogearbox.net>
Date:   Thu, 11 Jan 2018 03:13:13 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     davem@...emloft.net
Cc:     daniel@...earbox.net, ast@...nel.org, netdev@...r.kernel.org
Subject: pull-request: bpf-next 2018-01-11

Hi David,

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Various BPF related improvements and fixes to nfp driver: i) do
   not register XDP RXQ structure to control queues, ii) round up
   program stack size to word size for nfp, iii) restrict MTU changes
   when BPF offload is active, iv) add more fully featured relocation
   support to JIT, v) add support for signed compare instructions to
   the nfp JIT, vi) export and reuse verfier log routine for nfp, and
   many more, from Jakub, Quentin and Nic.

2) Fix a syzkaller reported GPF in BPF's copy_verifier_state() when
   we hit kmalloc failure path, from Alexei.

3) Add two follow-up fixes for the recent XDP RXQ series: i) kvzalloc()
   allocated memory was only kfree()'ed, and ii) fix a memory leak where
   RX queue was not freed in netif_free_rx_queues(), from Jakub.

4) Add a sample for transferring XDP meta data into the skb, here it
   is used for setting skb->mark with the buffer from XDP, from Jesper.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git

Thanks a lot!

Note, getting bpf-next out earlier this time around in order to
pull in dependencies from bpf that are needed in bpf-next for
upcoming series such as maps offload.

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

The following changes since commit f66faae2f80a45feafc04ce63ef744ac4b6e8c05:

  Merge branch 'ipv6-ipv4-nexthop-align' (2018-01-07 21:29:41 -0500)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git 

for you to fetch changes up to 36e04a2d78d97cc3a02a168541dfa00c8e4b30f2:

  samples/bpf: xdp2skb_meta shows transferring info from XDP to SKB (2018-01-11 01:02:25 +0100)

----------------------------------------------------------------
Alexei Starovoitov (1):
      bpf: fix verifier GPF in kmalloc failure path

Daniel Borkmann (2):
      Merge branch 'bpf-xdp-rxq-fixes'
      Merge branch 'bpf-nfp-misc-improvements'

Jakub Kicinski (13):
      net: use the right variant of kfree
      net: free RX queue structures
      nfp: don't try to register XDP rxq structures on control queues
      nfp: fix incumbent kdoc warnings
      nfp: bpf: round up the size of the stack
      nfp: bpf: don't allow changing MTU above BPF offload limit when active
      nfp: bpf: allow disabling TC offloads when XDP active
      nfp: bpf: move jump resolution to jit.c
      nfp: bpf: add helpers for modifying branch addresses
      nfp: bpf: relocate jump targets just before the load
      nfp: bpf: don't depend on high order allocations for program image
      nfp: bpf: use a large constant in unresolved branches
      nfp: hand over to BPF offload app at coarser granularity

Jesper Dangaard Brouer (1):
      samples/bpf: xdp2skb_meta shows transferring info from XDP to SKB

Nic Viljoen (1):
      nfp: bpf: add signed jump insns

Quentin Monnet (2):
      bpf: export function to write into verifier log buffer
      nfp: bpf: reuse verifier log for debug messages

 drivers/net/ethernet/netronome/nfp/bpf/jit.c       | 248 ++++++++++++++-------
 drivers/net/ethernet/netronome/nfp/bpf/main.c      |  38 +++-
 drivers/net/ethernet/netronome/nfp/bpf/main.h      |  44 ++--
 drivers/net/ethernet/netronome/nfp/bpf/offload.c   |  65 +++---
 drivers/net/ethernet/netronome/nfp/bpf/verifier.c  |  30 +--
 drivers/net/ethernet/netronome/nfp/nfp_app.h       |  60 ++---
 drivers/net/ethernet/netronome/nfp/nfp_asm.c       |  30 +++
 drivers/net/ethernet/netronome/nfp/nfp_asm.h       |   5 +
 .../net/ethernet/netronome/nfp/nfp_net_common.c    |  27 +--
 drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h  | 111 ++++-----
 drivers/net/ethernet/netronome/nfp/nfp_net_repr.c  |   8 +
 drivers/net/ethernet/netronome/nfp/nfp_net_repr.h  |   1 +
 include/linux/bpf_verifier.h                       |   3 +
 kernel/bpf/verifier.c                              |  20 +-
 net/core/dev.c                                     |   9 +-
 samples/bpf/Makefile                               |   1 +
 samples/bpf/xdp2skb_meta.sh                        | 220 ++++++++++++++++++
 samples/bpf/xdp2skb_meta_kern.c                    | 103 +++++++++
 18 files changed, 760 insertions(+), 263 deletions(-)
 create mode 100755 samples/bpf/xdp2skb_meta.sh
 create mode 100644 samples/bpf/xdp2skb_meta_kern.c