[ Upstream commit 8694138250 ]
A few packets may still be sent out during the termination of iperf
processes. These late packets cause failures in rss_ctx.py when they
arrive on queues expected to be empty.
Example failure observed:
Check failed 2 != 0 traffic on inactive queues (context 1):
[0, 0, 1, 1, 386385, 397196, 0, 0, 0, 0, ...]
Check failed 4 != 0 traffic on inactive queues (context 2):
[0, 0, 0, 0, 2, 2, 247152, 253013, 0, 0, ...]
Check failed 2 != 0 traffic on inactive queues (context 3):
[0, 0, 0, 0, 0, 0, 1, 1, 282434, 283070, ...]
To avoid such failures, wait until all client sockets for the requested
port are either closed or in the TIME_WAIT state.
Fixes: 847aa551fa ("selftests: drv-net: rss_ctx: factor out send traffic and check")
Signed-off-by: Nimrod Oren <noren@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250722122655.3194442-1-noren@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Add tests focusing on indirection table configuration and
creating extra RSS contexts in drivers which support it.
$ export NETIF=eth0 REMOTE_...
$ ./drivers/net/hw/rss_ctx.py
KTAP version 1
1..8
ok 1 rss_ctx.test_rss_key_indir
ok 2 rss_ctx.test_rss_context
ok 3 rss_ctx.test_rss_context4
# Increasing queue count 44 -> 66
# Failed to create context 32, trying to test what we got
ok 4 rss_ctx.test_rss_context32 # SKIP Tested only 31 contexts, wanted 32
ok 5 rss_ctx.test_rss_context_overlap
ok 6 rss_ctx.test_rss_context_overlap2
# .. sprays traffic like a headless chicken ..
not ok 7 rss_ctx.test_rss_context_out_of_order
ok 8 rss_ctx.test_rss_context4_create_with_cfg
# Totals: pass:6 fail:1 xfail:0 xpass:0 skip:1 error:0
Note that rss_ctx.test_rss_context_out_of_order fails with the device
I tested with, but it seems to be a device / driver bug.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240626012456.2326192-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
