netdev - [PATCH bpf-next 0/5] Bulk optimization for XDP cpumap redirect

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 10 Apr 2019 13:43:32 +0200
From:   Jesper Dangaard Brouer <brouer@...hat.com>
To:     netdev@...r.kernel.org, Daniel Borkmann <borkmann@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        bpf@...r.kernel.org,
        Toke Høiland-Jørgensen <toke@...e.dk>,
        Jesper Dangaard Brouer <brouer@...hat.com>
Subject: [PATCH bpf-next 0/5] Bulk optimization for XDP cpumap redirect

This patchset utilize a number of different kernel bulk APIs for optimizing
the performance for the XDP cpumap redirect feature.

Patch-1: ptr_ring batch consume
Patch-2: Send SKB-lists to network stack
Patch-3: Introduce SKB helper to alloc SKB outside net-core
Patch-4: kmem_cache bulk alloc of SKBs
Patch-5: Prefetch struct page to solve CPU stall

---

Jesper Dangaard Brouer (5):
      bpf: cpumap use ptr_ring_consume_batched
      bpf: cpumap use netif_receive_skb_list
      net: core: introduce build_skb_around
      bpf: cpumap do bulk allocation of SKBs
      bpf: cpumap memory prefetchw optimizations for struct page


 include/linux/netdevice.h |    1 +
 include/linux/skbuff.h    |    2 +
 kernel/bpf/cpumap.c       |   66 +++++++++++++++++++++++++++++-------------
 net/core/dev.c            |   18 +++++++++++
 net/core/skbuff.c         |   71 +++++++++++++++++++++++++++++++++------------
 5 files changed, 118 insertions(+), 40 deletions(-)

--