diff mbox series

[net,7/7] net/mlx5e: Disable loopback self-test on multi-PF netdev

Message ID 20241107183527.676877-8-tariqt@nvidia.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series mlx5 misc fixes 2024-11-07 | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 1 maintainers not CCed: linux-rdma@vger.kernel.org
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 4 this patch: 4
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-11-08--06-00 (tests: 783)

Commit Message

Tariq Toukan Nov. 7, 2024, 6:35 p.m. UTC 
From: Carolina Jubran <cjubran@nvidia.com>

In Multi-PF (Socket Direct) configurations, when a loopback packet is
sent through one of the secondary devices, it will always be received
on the primary device. This causes the loopback layer to fail in
identifying the loopback packet as the devices are different.

To avoid false test failures, disable the loopback self-test in
Multi-PF configurations.

Fixes: ed29705e4ed1 ("net/mlx5: Enable SD feature")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
index 5bf8318cc48b..1d60465cc2ca 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
@@ -36,6 +36,7 @@ 
 #include "en.h"
 #include "en/port.h"
 #include "eswitch.h"
+#include "lib/mlx5.h"
 
 static int mlx5e_test_health_info(struct mlx5e_priv *priv)
 {
@@ -247,6 +248,9 @@  static int mlx5e_cond_loopback(struct mlx5e_priv *priv)
 	if (is_mdev_switchdev_mode(priv->mdev))
 		return -EOPNOTSUPP;
 
+	if (mlx5_get_sd(priv->mdev))
+		return -EOPNOTSUPP;
+
 	return 0;
 }