linux.git/tools/testing/vsock, branch v6.3-rc2

test/vsock: vsock_perf utility

2023-01-12T11:53:54+00:00

This adds utility to check vsock rx/tx performance.

Usage as sender:
./vsock_perf --sender  --port  --bytes 
Usage as receiver:
./vsock_perf --port  --rcvlowat 

Signed-off-by: Arseniy Krasnov 
Reviewed-by: Stefano Garzarella 
Signed-off-by: Paolo Abeni

test/vsock: add big message test

2023-01-12T11:53:54+00:00

This adds test for sending message, bigger than peer's buffer size.
For SOCK_SEQPACKET socket it must fail, as this type of socket has
message size limit.

Signed-off-by: Arseniy Krasnov 
Reviewed-by: Stefano Garzarella 
Signed-off-by: Paolo Abeni

test/vsock: rework message bounds test

2023-01-12T11:53:54+00:00

This updates message bound test making it more complex. Instead of
sending 1 bytes messages with one MSG_EOR bit, it sends messages of
random length(one half of messages are smaller than page size, second
half are bigger) with random number of MSG_EOR bits set. Receiver
also don't know total number of messages.

Signed-off-by: Arseniy Krasnov 
Reviewed-by: Stefano Garzarella 
Signed-off-by: Paolo Abeni

vsock_test: POLLIN + SO_RCVLOWAT test

2022-08-23T08:43:12+00:00

This adds test to check, that when poll() returns POLLIN, POLLRDNORM bits,
next read call won't block.

Signed-off-by: Arseniy Krasnov 
Reviewed-by: Stefano Garzarella 
Signed-off-by: Paolo Abeni

af_vsock: SOCK_SEQPACKET broken buffer test

2022-03-18T15:13:19+00:00

Add test where sender sends two message, each with own
data pattern. Reader tries to read first to broken buffer:
it has three pages size, but middle page is unmapped. Then,
reader tries to read second message to valid buffer. Test
checks, that uncopied part of first message was dropped
and thus not copied as part of second message.

Signed-off-by: Krasnov Arseniy Vladimirovich 
Reviewed-by: Stefano Garzarella 
Signed-off-by: David S. Miller

af_vsock: SOCK_SEQPACKET receive timeout test

2022-03-18T15:13:18+00:00

Test for receive timeout check: connection is established,
receiver sets timeout, but sender does nothing. Receiver's
'read()' call must return EAGAIN.

Signed-off-by: Krasnov Arseniy Vladimirovich 
Reviewed-by: Stefano Garzarella 
Signed-off-by: David S. Miller

vsock_diag_test: remove free_sock_stat() call in test_no_sockets

2021-10-16T00:21:34+00:00

In `test_no_sockets` we don't expect any sockets, indeed
check_no_sockets() prints an error and exits if `sockets` list is
not empty, so free_sock_stat() call is unnecessary since it would
only be called when the `sockets` list is empty.

This was discovered by a strange warning printed by gcc v11.2.1:
  In file included from ../../include/linux/list.h:7,
                   from vsock_diag_test.c:18:
  vsock_diag_test.c: In function ‘test_no_sockets’:
  ../../include/linux/kernel.h:35:45: error: array subscript ‘struct vsock_stat[0]’ is partly outside array bound
  s of ‘struct list_head[1]’ [-Werror=array-bounds]
     35 |         const typeof(((type *)0)->member) * __mptr = (ptr);     \
        |                                             ^~~~~~
  ../../include/linux/list.h:352:9: note: in expansion of macro ‘container_of’
    352 |         container_of(ptr, type, member)
        |         ^~~~~~~~~~~~
  ../../include/linux/list.h:393:9: note: in expansion of macro ‘list_entry’
    393 |         list_entry((pos)->member.next, typeof(*(pos)), member)
        |         ^~~~~~~~~~
  ../../include/linux/list.h:522:21: note: in expansion of macro ‘list_next_entry’
    522 |                 n = list_next_entry(pos, member);                       \
        |                     ^~~~~~~~~~~~~~~
  vsock_diag_test.c:325:9: note: in expansion of macro ‘list_for_each_entry_safe’
    325 |         list_for_each_entry_safe(st, next, sockets, list) {
        |         ^~~~~~~~~~~~~~~~~~~~~~~~
  In file included from vsock_diag_test.c:18:
  vsock_diag_test.c:333:19: note: while referencing ‘sockets’
    333 |         LIST_HEAD(sockets);
        |                   ^~~~~~~
  ../../include/linux/list.h:23:26: note: in definition of macro ‘LIST_HEAD’
     23 |         struct list_head name = LIST_HEAD_INIT(name)

It seems related to some compiler optimization and assumption
about the empty `sockets` list, since this warning is printed
only with -02 or -O3. Also removing `exit(1)` from
check_no_sockets() makes the warning disappear since in that
case free_sock_stat() can be reached also when the list is
not empty.

Reported-by: Marc-André Lureau 
Signed-off-by: Stefano Garzarella 
Link: https://lore.kernel.org/r/20211014152045.173872-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski

vsock_test: update message bounds test for MSG_EOR

2021-09-06T06:25:16+00:00

Set 'MSG_EOR' in one of message sent, check that 'MSG_EOR'
is visible in corresponding message at receiver.

Signed-off-by: Arseny Krasnov 
Reviewed-by: Stefano Garzarella 
Link: https://lore.kernel.org/r/20210903123321.3273866-1-arseny.krasnov@kaspersky.com
Signed-off-by: Michael S. Tsirkin

vsock_test: add SOCK_SEQPACKET tests

2021-06-11T20:32:47+00:00

Implement two tests of SOCK_SEQPACKET socket: first sends data by
several 'write()'s and checks that number of 'read()' were same.
Second test checks MSG_TRUNC flag. Cases for connect(), bind(),
etc. are not tested, because it is same as for stream socket.

Signed-off-by: Arseny Krasnov 
Signed-off-by: David S. Miller

Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

2020-04-03T20:12:26+00:00

Pull SPDX updates from Greg KH:
 "Here are three SPDX patches for 5.7-rc1.

  One fixes up the SPDX tag for a single driver, while the other two go
  through the tree and add SPDX tags for all of the .gitignore files as
  needed.

  Nothing too complex, but you will get a merge conflict with your
  current tree, that should be trivial to handle (one file modified by
  two things, one file deleted.)

  All three of these have been in linux-next for a while, with no
  reported issues other than the merge conflict"

* tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  ASoC: MT6660: make spdxcheck.py happy
  .gitignore: add SPDX License Identifier
  .gitignore: remove too obvious comments