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selftests: net-drv: test adding flow rule to invalid RSS context

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Check that adding Rx flow steering rules pointing to an RSS
context which does not exist is prevented.

Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20250206235334.1425329-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-02-06 15:53:29 -08:00
parent de7f7582df
commit 23bac39910
1 changed files with 26 additions and 1 deletions
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27
tools/testing/selftests/drivers/net/hw/rss_ctx.py
View File

@ -4,7 +4,8 @@
import datetime
import random
import re
from lib.py import ksft_run, ksft_pr, ksft_exit, ksft_eq, ksft_ne, ksft_ge, ksft_lt, ksft_true
from lib.py import ksft_run, ksft_pr, ksft_exit
from lib.py import ksft_eq, ksft_ne, ksft_ge, ksft_in, ksft_lt, ksft_true, ksft_raises
from lib.py import NetDrvEpEnv
from lib.py import EthtoolFamily, NetdevFamily
from lib.py import KsftSkipEx, KsftFailEx
@ -649,6 +650,29 @@ def test_rss_context_overlap2(cfg):
test_rss_context_overlap(cfg, True)
def test_flow_add_context_missing(cfg):
"""
Test that we are not allowed to add a rule pointing to an RSS context
which was never created.
"""
require_ntuple(cfg)
# Find a context which doesn't exist
for ctx_id in range(1, 100):
try:
get_rss(cfg, context=ctx_id)
except CmdExitFailure:
break
with ksft_raises(CmdExitFailure) as cm:
flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port 1234 context {ctx_id}"
ntuple_id = ethtool_create(cfg, "-N", flow)
ethtool(f"-N {cfg.ifname} delete {ntuple_id}")
if cm.exception:
ksft_in('Invalid argument', cm.exception.cmd.stderr)
def test_delete_rss_context_busy(cfg):
"""
Test that deletion returns -EBUSY when an rss context is being used
@ -726,6 +750,7 @@ def main() -> None:
test_rss_context_dump, test_rss_context_queue_reconfigure,
test_rss_context_overlap, test_rss_context_overlap2,
test_rss_context_out_of_order, test_rss_context4_create_with_cfg,
test_flow_add_context_missing,
test_delete_rss_context_busy, test_rss_ntuple_addition],
args=(cfg, ))
ksft_exit()