kernel/include/trace/events/mctp.h, branch linux-6.18.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-6.18.y2022-02-09T12:00:11Zmctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control2022-02-09T12:00:11ZMatt Johnstonmatt@codeconstruct.com.au2022-02-09T04:05:57Zurn:sha1:63ed1aab3d40aa61aaa66819bdce9377ac7f40fa
This change adds a couple of new ioctls for mctp sockets:
SIOCMCTPALLOCTAG and SIOCMCTPDROPTAG. These ioctls provide facilities
for explicit allocation / release of tags, overriding the automatic
allocate-on-send/release-on-reply and timeout behaviours. This allows
userspace more control over messages that may not fit a simple
request/response model.
In order to indicate a pre-allocated tag to the sendmsg() syscall, we
introduce a new flag to the struct sockaddr_mctp.smctp_tag value:
MCTP_TAG_PREALLOC.
Additional changes from Jeremy Kerr <jk@codeconstruct.com.au>.
Contains a fix that was:
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
mctp: Add tracepoints for tag/key handling2021-09-29T10:00:11ZJeremy Kerrjk@codeconstruct.com.au2021-09-29T07:26:10Zurn:sha1:4f9e1ba6de45aa8797a83f1fe5b82ec4bac16899
The tag allocation, release and bind events are somewhat opaque outside
the kernel; this change adds a few tracepoints to assist in
instrumentation and debugging.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>