diff options
| author | Dragos Tatulea <dtatulea@nvidia.com> | 2026-06-11 19:03:41 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-13 03:28:07 +0300 |
| commit | ec782be97d2d364fec730512259e6da259594109 (patch) | |
| tree | a0ae0ca398a8b5ed2af7c16f224e6e7f7b089043 | |
| parent | 315a0c33999a21a87b4326a1f326c1cd86f0ea97 (diff) | |
| download | linux-ec782be97d2d364fec730512259e6da259594109.tar.xz | |
selftests: iou-zcrx: defer listen() until after zcrx setup
The server binds the queues for zero-copy after listen(). If the client
does a connect() during this time it can fail with EHOSTUNREACH on
a cold system. This was encountered with the mlx5 driver where binding
the .ndo_queue_start() is a slow operation during which no packets
can be exchanged.
This change moves listen() after queue binding, when the test server is
fully operational.
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Link: https://patch.msgid.link/20260611160341.3697227-2-dtatulea@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | tools/testing/selftests/drivers/net/hw/iou-zcrx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/drivers/net/hw/iou-zcrx.c b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c index 240d13dbc54e..f6a8fc5fac24 100644 --- a/tools/testing/selftests/drivers/net/hw/iou-zcrx.c +++ b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c @@ -351,9 +351,6 @@ static void run_server(void) if (ret < 0) error(1, 0, "bind()"); - if (listen(fd, 1024) < 0) - error(1, 0, "listen()"); - flags |= IORING_SETUP_COOP_TASKRUN; flags |= IORING_SETUP_SINGLE_ISSUER; flags |= IORING_SETUP_DEFER_TASKRUN; @@ -366,6 +363,9 @@ static void run_server(void) if (cfg_dry_run) return; + if (listen(fd, 1024) < 0) + error(1, 0, "listen()"); + add_accept(&ring, fd); tstop = gettimeofday_ms() + 5000; |