netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH bpf-next v2 00/14] nfp: bpf: relocations, verifier log, signed jumps and other updates
@ 2018-01-10 12:25 Quentin Monnet
  2018-01-10 12:25 ` [PATCH bpf-next v2 01/14] nfp: don't try to register XDP rxq structures on control queues Quentin Monnet
                   ` (14 more replies)
  0 siblings, 15 replies; 16+ messages in thread
From: Quentin Monnet @ 2018-01-10 12:25 UTC (permalink / raw)
  To: daniel, alexei.starovoitov, netdev; +Cc: oss-drivers, jakub.kicinski

Jakub says:

Hi!

This series starts with a fix to Jesper's recent work, somehow I forgot
about control rings during review.  Second patch is cleaning up a vNIC
header, in kdoc we should not use @ for #define constants.  Aligning of
the top of the stack as well as bottom (last bytes will be unused) helps
the performance.  We should check offload datapath's max MTU when program
is loaded and we can allow TC hw offload flag to be changed freely while
XDP offload is active.

Next group of patches adds more fully featured relocation support.  Due
to limited amount of code space we only load the image to NIC's memory
when program is attached.  Since we can't predict which programs are
loaded later, we should translate as if image was to be loaded at offset
zero and only apply relocations at load time.  Many more advanced features
(eg. tail class, subprograms, dynamic allocation of program space and
sharing it between ports) will depend on this.

Nic adds support for signed comparison instructions.

Quentin makes use of the verifier log in our driver, the verifier print
function (verbose()) has to be renamed and exported.

v2:
 - replace #define by function aliasing for verbose() in patch 13

Jakub Kicinski (11):
  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

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                              |  16 +-
 14 files changed, 428 insertions(+), 258 deletions(-)

-- 
2.7.4

^ permalink raw reply	[flat|nested] 16+ messages in thread
end of thread, other threads:[~2018-01-10 14:05 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-01-10 12:25 [PATCH bpf-next v2 00/14] nfp: bpf: relocations, verifier log, signed jumps and other updates Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 01/14] nfp: don't try to register XDP rxq structures on control queues Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 02/14] nfp: fix incumbent kdoc warnings Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 03/14] nfp: bpf: round up the size of the stack Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 04/14] nfp: bpf: don't allow changing MTU above BPF offload limit when active Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 05/14] nfp: bpf: allow disabling TC offloads when XDP active Quentin Monnet
2018-01-10 12:25 ` [PATCH bpf-next v2 06/14] nfp: bpf: move jump resolution to jit.c Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 07/14] nfp: bpf: add helpers for modifying branch addresses Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 08/14] nfp: bpf: relocate jump targets just before the load Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 09/14] nfp: bpf: don't depend on high order allocations for program image Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 10/14] nfp: bpf: use a large constant in unresolved branches Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 11/14] nfp: hand over to BPF offload app at coarser granularity Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 12/14] nfp: bpf: add signed jump insns Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 13/14] bpf: export function to write into verifier log buffer Quentin Monnet
2018-01-10 12:26 ` [PATCH bpf-next v2 14/14] nfp: bpf: reuse verifier log for debug messages Quentin Monnet
2018-01-10 14:05 ` [PATCH bpf-next v2 00/14] nfp: bpf: relocations, verifier log, signed jumps and other updates Daniel Borkmann

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).