github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 23:52:08 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests: net: test listing NAPI vs queue resets

Browse Source 
Test listing netdevsim NAPIs before and after a single queue
has been reset (and NAPIs re-added).

Start from resetting the middle queue because edge cases
(first / last) may actually be less likely to trigger bugs.

  # ./tools/testing/selftests/net/nl_netdev.py
  KTAP version 1
  1..4
  ok 1 nl_netdev.empty_check
  ok 2 nl_netdev.lo_check
  ok 3 nl_netdev.page_pool_check
  ok 4 nl_netdev.napi_list_check
  # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0

Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Jakub Kicinski 2025-01-07 08:08:46 -08:00 committed by Paolo Abeni
parent 6917d207b4
commit eb721f117e
1 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
tools/testing/selftests/net/nl_netdev.py
View File

@ -18,6 +18,23 @@ def lo_check(nf) -> None:
ksft_eq(len(lo_info['xdp-rx-metadata-features']), 0)
def napi_list_check(nf) -> None:
with NetdevSimDev(queue_count=100) as nsimdev:
nsim = nsimdev.nsims[0]
ip(f"link set dev {nsim.ifname} up")
napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
ksft_eq(len(napis), 100)
for q in [50, 0, 99]:
for i in range(4):
nsim.dfs_write("queue_reset", f"{q} {i}")
napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
ksft_eq(len(napis), 100,
comment=f"queue count after reset queue {q} mode {i}")
def page_pool_check(nf) -> None:
with NetdevSimDev() as nsimdev:
nsim = nsimdev.nsims[0]
@ -89,7 +106,7 @@ def page_pool_check(nf) -> None:
def main() -> None:
nf = NetdevFamily()
ksft_run([empty_check, lo_check, page_pool_check],
ksft_run([empty_check, lo_check, page_pool_check, napi_list_check],
args=(nf, ))
ksft_exit()