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Message-ID: <20240809031827.2373341-13-kuba@kernel.org>
Date: Thu, 8 Aug 2024 20:18:27 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
michael.chan@...adcom.com,
shuah@...nel.org,
ecree.xilinx@...il.com,
przemyslaw.kitszel@...el.com,
ahmed.zaki@...el.com,
andrew@...n.ch,
willemb@...gle.com,
pavan.chebbi@...adcom.com,
petrm@...dia.com,
gal@...dia.com,
jdamato@...tly.com,
donald.hunter@...il.com,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v4 12/12] selftests: drv-net: rss_ctx: test dumping RSS contexts
Add a test for dumping RSS contexts. Make sure indir table
and key are sane when contexts are created with various
combination of inputs. Test the dump filtering by ifname
and start-context.
Reviewed-by: Petr Machata <petrm@...dia.com>
Reviewed-by: Edward Cree <ecree.xilinx@...il.com>
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
v3:
- filter results by ifindex
- check for duplicates
---
.../selftests/drivers/net/hw/rss_ctx.py | 76 ++++++++++++++++++-
tools/testing/selftests/net/lib/py/ksft.py | 6 ++
2 files changed, 80 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/drivers/net/hw/rss_ctx.py b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
index 1da6b214f4fe..9d7adb3cf33b 100755
--- a/tools/testing/selftests/drivers/net/hw/rss_ctx.py
+++ b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
@@ -3,7 +3,7 @@
import datetime
import random
-from lib.py import ksft_run, ksft_pr, ksft_exit, ksft_eq, ksft_ge, ksft_lt
+from lib.py import ksft_run, ksft_pr, ksft_exit, ksft_eq, ksft_ne, ksft_ge, ksft_lt
from lib.py import NetDrvEpEnv
from lib.py import EthtoolFamily, NetdevFamily
from lib.py import KsftSkipEx
@@ -302,6 +302,78 @@ from lib.py import ethtool, ip, defer, GenerateTraffic, CmdExitFailure
ksft_eq(carrier1 - carrier0, 0)
+def test_rss_context_dump(cfg):
+ """
+ Test dumping RSS contexts. This tests mostly exercises the kernel APIs.
+ """
+
+ # Get a random key of the right size
+ data = get_rss(cfg)
+ if 'rss-hash-key' in data:
+ key_data = _rss_key_rand(len(data['rss-hash-key']))
+ key = _rss_key_str(key_data)
+ else:
+ key_data = []
+ key = "ba:ad"
+
+ ids = []
+ try:
+ ids.append(ethtool_create(cfg, "-X", f"context new"))
+ defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+
+ ids.append(ethtool_create(cfg, "-X", f"context new weight 1 1"))
+ defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+
+ ids.append(ethtool_create(cfg, "-X", f"context new hkey {key}"))
+ defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+ except CmdExitFailure:
+ if not ids:
+ raise KsftSkipEx("Unable to add any contexts")
+ ksft_pr(f"Added only {len(ids)} out of 3 contexts")
+
+ expect_tuples = set([(cfg.ifname, -1)] + [(cfg.ifname, ctx_id) for ctx_id in ids])
+
+ # Dump all
+ ctxs = cfg.ethnl.rss_get({}, dump=True)
+ tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+ ksft_eq(len(tuples), len(set(tuples)), "duplicates in context dump")
+ ctx_tuples = set([ctx for ctx in tuples if ctx[0] == cfg.ifname])
+ ksft_eq(expect_tuples, ctx_tuples)
+
+ # Sanity-check the results
+ for data in ctxs:
+ ksft_ne(set(data['indir']), {0}, "indir table is all zero")
+ ksft_ne(set(data.get('hkey', [1])), {0}, "key is all zero")
+
+ # More specific checks
+ if len(ids) > 1 and data.get('context') == ids[1]:
+ ksft_eq(set(data['indir']), {0, 1},
+ "ctx1 - indir table mismatch")
+ if len(ids) > 2 and data.get('context') == ids[2]:
+ ksft_eq(data['hkey'], bytes(key_data), "ctx2 - key mismatch")
+
+ # Ifindex filter
+ ctxs = cfg.ethnl.rss_get({'header': {'dev-name': cfg.ifname}}, dump=True)
+ tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+ ctx_tuples = set(tuples)
+ ksft_eq(len(tuples), len(ctx_tuples), "duplicates in context dump")
+ ksft_eq(expect_tuples, ctx_tuples)
+
+ # Skip ctx 0
+ expect_tuples.remove((cfg.ifname, -1))
+
+ ctxs = cfg.ethnl.rss_get({'start-context': 1}, dump=True)
+ tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+ ksft_eq(len(tuples), len(set(tuples)), "duplicates in context dump")
+ ctx_tuples = set([ctx for ctx in tuples if ctx[0] == cfg.ifname])
+ ksft_eq(expect_tuples, ctx_tuples)
+
+ # And finally both with ifindex and skip main
+ ctxs = cfg.ethnl.rss_get({'header': {'dev-name': cfg.ifname}, 'start-context': 1}, dump=True)
+ ctx_tuples = set([(c['header']['dev-name'], c.get('context', -1)) for c in ctxs])
+ ksft_eq(expect_tuples, ctx_tuples)
+
+
def test_rss_context(cfg, ctx_cnt=1, create_with_cfg=None):
"""
Test separating traffic into RSS contexts.
@@ -542,7 +614,7 @@ from lib.py import ethtool, ip, defer, GenerateTraffic, CmdExitFailure
ksft_run([test_rss_key_indir, test_rss_queue_reconfigure,
test_rss_resize, test_hitless_key_update,
test_rss_context, test_rss_context4, test_rss_context32,
- test_rss_context_queue_reconfigure,
+ 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],
args=(cfg, ))
diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py
index f663e0daec0d..477ae76de93d 100644
--- a/tools/testing/selftests/net/lib/py/ksft.py
+++ b/tools/testing/selftests/net/lib/py/ksft.py
@@ -55,6 +55,12 @@ KSFT_DISRUPTIVE = True
_fail("Check failed", a, "!=", b, comment)
+def ksft_ne(a, b, comment=""):
+ global KSFT_RESULT
+ if a == b:
+ _fail("Check failed", a, "==", b, comment)
+
+
def ksft_true(a, comment=""):
if not a:
_fail("Check failed", a, "does not eval to True", comment)
--
2.46.0
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