[SRU][J:linux-bluefield][PATCH v4 00/10] Support hardware miss to tc action

[William Tu]

Currently tc miss interface only supports resuming from a specific tc chain.
If a packet modification is done before a missable action such as CT and
there is a miss in CT after it, this may cause a miss match when resuming
re-executing the same chain in software, and wrong packet count.
 This use case for example is a stateless (static) nat.

* brief explanation of fixes
Add support for missing to a specific action instance, and support
of per action hardware stats to update what was actually done in hardware.

BugLink: https://bugs.launchpad.net/bugs/2012571

v3->v4:
- Feedback from Bartlomiej and Tim.
  Remove the commit ("netfilter: ctnetlink: Support offloaded conntrack entry deletion")
  as it is different buglink id.

v2->v3:
- remove mention of "linux-next" from the cherry-pick line of commit
9b7c68b3911a
- include 3 fixes for commit 80cd22c35c90 ("net/sched: cls_api: Support
hardware miss to tc action") 
commit 2cc8a008d62f ("net/sched: cls_api: Initialize
miss_cookie_node when action miss is not used")
  
commit 338469d677e5 ("net/sched: clear actions pointer in miss
cookie init fail")

commit 37e1f3acc339 ("net/sched: cls_api: Move call to
tcf_exts_miss_cookie_base_destroy()")

- Add:
commit dfd2f0eb2347 ("net/sched: flower: fix
fl_change() error recovery path")
and makes 593e1c66f994 ("net/sched: flower: fix error handler on replace") backported

v1->v2:
add two more patches from Vlad, show below

Eric Dumazet (1):
  net/sched: flower: fix fl_change() error recovery path

Ivan Vecera (1):
  net/sched: cls_api: Initialize miss_cookie_node when action miss is
    not used

Nathan Chancellor (1):
  net/sched: cls_api: Move call to tcf_exts_miss_cookie_base_destroy()

Paul Blakey (4):
  UBUNTU: SAUCE: net/sched: Provide act to offload action
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: flower: Support hardware miss to tc action

Pedro Tammela (1):
  net/sched: clear actions pointer in miss cookie init fail

Vlad Buslov (2):
  net/sched: flower: fix filter idr initialization
  net/sched: flower: fix error handler on replace

 include/linux/skbuff.h     |   6 +-
 include/net/flow_offload.h |   2 +
 include/net/pkt_cls.h      |  30 +++--
 include/net/sch_generic.h  |   2 +
 net/openvswitch/flow.c     |   3 +-
 net/sched/cls_api.c        | 220 +++++++++++++++++++++++++++++++++++--
 net/sched/cls_flower.c     |  81 +++++++++-----
 7 files changed, 293 insertions(+), 51 deletions(-)

-- 
2.34.1