linux.git/tools/testing/selftests/net/forwarding, branch v5.5

selftests: loopback.sh: skip this test if the driver does not support

2020-01-03T20:23:34+00:00

The loopback feature is only supported on a few drivers like broadcom,
mellanox, etc. The default veth driver has not supported it yet. To avoid
returning failed and making the runner feel confused, let's just skip
the test on drivers that not support loopback.

Fixes: ad11340994d5 ("selftests: Add loopback test")
Signed-off-by: Hangbin Liu 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

selftests: forwarding: Delete IPv6 address at the end

2019-12-09T18:19:45+00:00

When creating the second host in h2_create(), two addresses are assigned
to the interface, but only one is deleted. When running the test twice
in a row the following error is observed:

$ ./router_bridge_vlan.sh
TEST: ping                                                          [ OK ]
TEST: ping6                                                         [ OK ]
TEST: vlan                                                          [ OK ]
$ ./router_bridge_vlan.sh
RTNETLINK answers: File exists
TEST: ping                                                          [ OK ]
TEST: ping6                                                         [ OK ]
TEST: vlan                                                          [ OK ]

Fix this by deleting the address during cleanup.

Fixes: 5b1e7f9ebd56 ("selftests: forwarding: Test routed bridge interface")
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: fix race between packet receive and tc check

2019-11-30T20:23:27+00:00

It is possible that tc stats get checked before the packet we check for
actually arrived into the interface and accounted for.
Fix it by checking for the expected result in a loop until
timeout is reached (by default 1 second).

Fixes: 07e5c75184a1 ("selftests: forwarding: Introduce tc flower matching tests")
Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

selftests: forwarding: Add speed and auto-negotiation test

2019-11-19T01:11:54+00:00

Check configurations and packets transference with different variations
of autoneg and speed.

Test plan:
1. Test force of same speed with autoneg off
2. Test force of different speeds with autoneg off (should fail)
3. One side is autoneg on and other side sets force of common speeds
4. One side is autoneg on and other side only advertises a subset of the
   common speeds (one speed of the subset)
5. One side is autoneg on and other side only advertises a subset of the
   common speeds. Check that highest speed is negotiated
6. Test autoneg on, but each side advertises different speeds (should
   fail)

Signed-off-by: Amit Cohen 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: lib.sh: Add wait for dev with timeout

2019-11-19T01:11:54+00:00

Add a function that waits for device with maximum number of iterations.
It enables to limit the waiting and prevent infinite loop.

This will be used by the subsequent patch which will set two ports to
different speeds in order to make sure they cannot negotiate a link.

Waiting for all the setup is limited with 10 minutes for each device.

Signed-off-by: Amit Cohen 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: Add ethtool_lib.sh

2019-11-19T01:11:54+00:00

Functions:
1. speeds_arr_get
	The function returns an array of speed values from
        /usr/include/linux/ethtool.h The array looks as follows:
	[10baseT/Half] = 0,
	[10baseT/Full] = 1,
	...

2. ethtool_set:
	params: cmd
	The function runs ethtool by cmd (ethtool -s cmd) and checks if
	there was an error in configuration

3. dev_speeds_get:
	params: dev, with_mode (0 or 1), adver (0 or 1)
	return value: Array of supported/Advertised link modes
	with/without mode

	* Example 1:
	speeds_get swp1 0 0
	return: 1000 10000 40000
	* Example 2:
	speeds_get swp1 1 1
	return: 1000baseKX/Full 10000baseKR/Full 40000baseCR4/Full

4. common_speeds_get:
	params: dev1, dev2, with_mode (0 or 1), adver (0 or 1)
	return value: Array of common speeds of dev1 and dev2

	* Example:
	common_speeds_get swp1 swp2 0 0
	return: 1000 10000
	Assuming that swp1 supports 1000 10000 40000 and swp2 supports
	1000 10000

Signed-off-by: Amit Cohen 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: tc_common: Add hitting check

2019-11-08T03:51:40+00:00

Add an option to check that packets hit the tc filter without providing
the exact number of packets that should hit it.

It is useful while sending many packets in background and checking that
at least one of them hit the tc filter.

Signed-off-by: Amit Cohen 
Acked-by: Jiri Pirko 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: forwarding: devlink: Add functionality for trap exceptions test

2019-11-08T03:51:40+00:00

Add common part of all the tests - check devlink status to ensure that
packets were trapped.

Signed-off-by: Amit Cohen 
Acked-by: Jiri Pirko 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: devlink: Make devlink_trap_cleanup() more generic

2019-11-08T03:51:40+00:00

Add proto parameter in order to enable the use of devlink_trap_cleanup()
in tests that use IPv6 protocol.

Signed-off-by: Amit Cohen 
Acked-by: Jiri Pirko 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: devlink: Export functions to devlink library

2019-11-08T03:51:40+00:00

l2_drops_test() is used to check that drop traps are functioning as
intended. Currently it is only used in the layer 2 test, but it is also
useful for the layer 3 test introduced in the subsequent patch.

l2_drops_cleanup() is used to clean configurations and kill mausezahn
proccess.

Export the functions to the common devlink library to allow it to be
re-used by future tests.

Signed-off-by: Amit Cohen 
Acked-by: Jiri Pirko 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller