This series implements a small interface for userspace-controlled
message tag allocation for the MCTP protocol. Rather than leaving the
kernel to allocate per-message tag values, userspace can explicitly
allocate (and release) message tags through two new ioctls:
SIOCMCTPALLOCTAG and SIOCMCTPDROPTAG.
In order to do this, we first introduce some minor changes to the tag
handling, including a couple of new tests for the route input paths.
As always, any comments/queries/etc are most welcome.
Cheers,
Jeremy
---
v2:
- make mctp_lookup_prealloc_tag static
- minor checkpatch formatting fixes
---
Jeremy Kerr (4):
mctp: tests: Rename FL_T macro to FL_TO
mctp: tests: Add key state tests
mctp: Add helper for address match checking
mctp: Allow keys matching any local address
Matt Johnston (1):
mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control
Documentation/networking/mctp.rst | 48 ++++++++
include/net/mctp.h | 16 ++-
include/trace/events/mctp.h | 5 +-
include/uapi/linux/mctp.h | 18 +++
net/mctp/af_mctp.c | 189 ++++++++++++++++++++++++++----
net/mctp/route.c | 124 ++++++++++++++------
net/mctp/test/route-test.c | 157 ++++++++++++++++++++++++-
7 files changed, 489 insertions(+), 68 deletions(-)
--
2.34.1
