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selftests: drv-net: rss_api: test setting hashing key via Netlink

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Test setting hashing key via Netlink.

  # ./tools/testing/selftests/drivers/net/hw/rss_api.py
  TAP version 13
  1..7
  ok 1 rss_api.test_rxfh_nl_set_fail
  ok 2 rss_api.test_rxfh_nl_set_indir
  ok 3 rss_api.test_rxfh_nl_set_indir_ctx
  ok 4 rss_api.test_rxfh_indir_ntf
  ok 5 rss_api.test_rxfh_indir_ctx_ntf
  ok 6 rss_api.test_rxfh_nl_set_key
  ok 7 rss_api.test_rxfh_fields
  # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0

Link: https://patch.msgid.link/20250716000331.1378807-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2025-07-15 17:03:27 -07:00
parent 51798c519a
commit 169b26207a
1 changed files with 33 additions and 0 deletions
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33
tools/testing/selftests/drivers/net/hw/rss_api.py
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@@ -6,6 +6,7 @@ API level tests for RSS (mostly Netlink vs IOCTL).
"""
import glob
import random
from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_is, ksft_ne, ksft_raises
from lib.py import KsftSkipEx, KsftFailEx
from lib.py import defer, ethtool, CmdExitFailure
@@ -199,6 +200,38 @@ def test_rxfh_indir_ctx_ntf(cfg):
ksft_eq(set(ntf["msg"]["indir"]), {1})
def test_rxfh_nl_set_key(cfg):
"""
Test setting hashing key via Netlink.
"""
dflt = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
defer(cfg.ethnl.rss_set,
{"header": {"dev-index": cfg.ifindex},
"hkey": dflt["hkey"], "indir": None})
# Empty key should error out
with ksft_raises(NlError) as cm:
cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
"hkey": None})
ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.hkey')
# Set key to random
mod = random.randbytes(len(dflt["hkey"]))
cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
"hkey": mod})
rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
ksft_eq(rss.get("hkey", [-1]), mod)
# Set key to random and indir tbl to something at once
mod = random.randbytes(len(dflt["hkey"]))
cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
"indir": [0, 1], "hkey": mod})
rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
ksft_eq(rss.get("hkey", [-1]), mod)
ksft_eq(set(rss.get("indir", [-1])), {0, 1})
def test_rxfh_fields(cfg):
"""
Test reading Rx Flow Hash over Netlink.