Commit d2348b4b authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

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

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: default avatarJakub Kicinski <kuba@kernel.org>
parent 22300354

tools/testing/selftests/drivers/net/hw/rss_ctx.py

+14 −5
Original line number Diff line number Diff line
@@ -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()