litmus-rt.git/arch/sparc/include/uapi, branch master

sparc: hook up execveat system call

2014-12-13T20:42:51+00:00

Signed-off-by: David Drysdale 
Acked-by: David S. Miller 
Cc: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

net: sock: allow eBPF programs to be attached to sockets

2014-12-06T05:47:32+00:00

introduce new setsockopt() command:

setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, sizeof(prog_fd))

where prog_fd was received from syscall bpf(BPF_PROG_LOAD, attr, ...)
and attr->prog_type == BPF_PROG_TYPE_SOCKET_FILTER

setsockopt() calls bpf_prog_get() which increments refcnt of the program,
so it doesn't get unloaded while socket is using the program.

The same eBPF program can be attached to multiple sockets.

User task exit automatically closes socket which calls sk_filter_uncharge()
which decrements refcnt of eBPF program

Signed-off-by: Alexei Starovoitov 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2014-11-22T03:28:24+00:00

Conflicts:
	drivers/net/ieee802154/fakehard.c

A bug fix went into 'net' for ieee802154/fakehard.c, which is removed
in 'net-next'.

Add build fix into the merge from Stephen Rothwell in openvswitch, the
logging macros take a new initial 'log' argument, a new call was added
in 'net' so when we merge that in here we have to explicitly add the
new 'log' arg to it else the build fails.

Signed-off-by: David S. Miller

sparc64: Fix constraints on swab helpers.

2014-11-16T21:19:32+00:00

We are reading the memory location, so we have to have a memory
constraint in there purely for the sake of showing the data flow
to the compiler.

Reported-by: Martin K. Petersen 
Signed-off-by: David S. Miller

net: introduce SO_INCOMING_CPU

2014-11-11T18:00:06+00:00

Alternative to RPS/RFS is to use hardware support for multiple
queues.

Then split a set of million of sockets into worker threads, each
one using epoll() to manage events on its own socket pool.

Ideally, we want one thread per RX/TX queue/cpu, but we have no way to
know after accept() or connect() on which queue/cpu a socket is managed.

We normally use one cpu per RX queue (IRQ smp_affinity being properly
set), so remembering on socket structure which cpu delivered last packet
is enough to solve the problem.

After accept(), connect(), or even file descriptor passing around
processes, applications can use :

 int cpu;
 socklen_t len = sizeof(cpu);

 getsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, &len);

And use this information to put the socket into the right silo
for optimal performance, as all networking stack should run
on the appropriate cpu, without need to send IPI (RPS/RFS).

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

sparc: Hook up bpf system call.

2014-10-28T18:30:43+00:00

Signed-off-by: David S. Miller

sparc/uapi: Add definition of TIOC[SG]RS485

2014-09-10T05:36:40+00:00

Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 (serial/8250: Add
support for RS485 IOCTLs), adds support for RS485 ioctls for 825_core on
all the archs. Unfortunaltely the definition of TIOCSRS485 and
TIOCGRS485 was missing on the ioctls.h file

Signed-off-by: Ricardo Ribalda Delgado 
Acked-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

sparc: Hook up memfd_create system call.

2014-08-14T05:00:09+00:00

Signed-off-by: David S. Miller

sparc: Hook up seccomp and getrandom system calls.

2014-08-06T21:50:52+00:00

Signed-off-by: David S. Miller

sparc: Hook up renameat2 syscall.

2014-07-22T05:27:56+00:00

Signed-off-by: David S. Miller