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selftests: drv-net: rss_ctx: skip tests which need multiple contexts cleanly

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There's no good API to check how many contexts device supports.
But initial tests sense the context count already, so just store
that number and skip tests which we know need more.

Link: https://patch.msgid.link/20250206235334.1425329-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-02-06 15:53:33 -08:00
parent 2230035439
commit d2348b4bf7
1 changed files with 14 additions and 5 deletions
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19
tools/testing/selftests/drivers/net/hw/rss_ctx.py
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@ -59,6 +59,14 @@ def require_ntuple(cfg):
raise KsftSkipEx("Ntuple filters not enabled on the device: " + str(features["ntuple-filters"]))
def require_context_cnt(cfg, need_cnt):
# There's no good API to get the context count, so the tests
# which try to add a lot opportunisitically set the count they
# discovered. Careful with test ordering!
if need_cnt and cfg.context_cnt and cfg.context_cnt < need_cnt:
raise KsftSkipEx(f"Test requires at least {need_cnt} contexts, but device only has {cfg.context_cnt}")
# Get Rx packet counts for all queues, as a simple list of integers
# if @prev is specified the prev counts will be subtracted
def _get_rx_cnts(cfg, prev=None):
@ -457,6 +465,8 @@ def test_rss_context(cfg, ctx_cnt=1, create_with_cfg=None):
raise
ksft_pr(f"Failed to create context {i + 1}, trying to test what we got")
ctx_cnt = i
if cfg.context_cnt is None:
cfg.context_cnt = ctx_cnt
break
_rss_key_check(cfg, context=ctx_id)
@ -512,8 +522,7 @@ def test_rss_context_out_of_order(cfg, ctx_cnt=4):
"""
require_ntuple(cfg)
requested_ctx_cnt = ctx_cnt
require_context_cnt(cfg, 4)
# Try to allocate more queues when necessary
qcnt = len(_get_rx_cnts(cfg))
@ -578,9 +587,6 @@ def test_rss_context_out_of_order(cfg, ctx_cnt=4):
remove_ctx(-1)
check_traffic()
if requested_ctx_cnt != ctx_cnt:
raise KsftSkipEx(f"Tested only {ctx_cnt} contexts, wanted {requested_ctx_cnt}")
def test_rss_context_overlap(cfg, other_ctx=0):
"""
@ -589,6 +595,8 @@ def test_rss_context_overlap(cfg, other_ctx=0):
"""
require_ntuple(cfg)
if other_ctx:
require_context_cnt(cfg, 2)
queue_cnt = len(_get_rx_cnts(cfg))
if queue_cnt < 4:
@ -741,6 +749,7 @@ def test_rss_ntuple_addition(cfg):
def main() -> None:
with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
cfg.context_cnt = None
cfg.ethnl = EthtoolFamily()
cfg.netdevnl = NetdevFamily()