tree 8129f3ba6e564ceaa4ac6132cb56c7e9ffd1c811
parent 25a39f7f975c3c26a0052fbf9b59201c06744332
parent 52be9a7cde1fd26e43a01ac06d5c2558c563a7cb
author David S. Miller <davem@davemloft.net> 1516656630 -0500
committer David S. Miller <davem@davemloft.net> 1516656630 -0500

Merge branch 'net-sched-add-extack-support-for-cls-offloads'

Jakub Kicinski says:

====================
net: sched: add extack support for cls offloads

I've dropped the tests from the series because test_offloads.py changes
will conflict with bpf-next patches.  I will send four more patches with
tests once bpf-next is merged back, hopefully still making it into 4.16 :)

v4:
 - rebase on top of Alex's changes.

---

Quentin says:

This series tries to improve user experience when eBPF hardware offload
hits error paths at load time. In particular, it introduces netlink
extended ack support in the nfp driver.

To that aim, transmission of the pointer to the extack object is piped
through the `change()` operation of the existing classifiers (patch 1 to
6). Then it is used for TC offload in the nfp driver (patch 8) and in
netdevsim (patch 9, selftest in patch 10). Patch 7 adds a helper to handle
extack messages in the core when TC offload is disabled on the net device.

For completeness extack is propagated for classifiers other than cls_bpf,
but it's up to the drivers to make use of it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>