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Date: Fri, 24 Sep 2021 11:48:06 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Roi Dayan <roid@...dia.com>,
Maor Dickman <maord@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 10/12] net/mlx5e: loopback test is not supported in switchdev mode
From: Roi Dayan <roid@...dia.com>
In switchdev mode we insert steering rules to eswitch that
make sure packets can't be looped back.
Modify the self tests infra and have flags per test.
Add a flag for tests that needs to be skipped in switchdev mode.
Before this commit:
$ ethtool --test enp8s0f0
The test result is FAIL
The test extra info:
Link Test 0
Speed Test 0
Health Test 0
Loopback Test 1
After this commit:
$ ethtool --test enp8s0f0
The test result is PASS
The test extra info:
Link Test 0
Speed Test 0
Health Test 0
Example output in dmesg:
enp8s0f0: Self test begin..
enp8s0f0: [0] Link Test start..
enp8s0f0: [0] Link Test end: result(0)
enp8s0f0: [1] Speed Test start..
enp8s0f0: [1] Speed Test end: result(0)
enp8s0f0: [2] Health Test start..
enp8s0f0: [2] Health Test end: result(0)
enp8s0f0: Self test out: status flags(0x1)
Signed-off-by: Roi Dayan <roid@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 3 +-
.../ethernet/mellanox/mlx5/core/en_ethtool.c | 4 +-
.../ethernet/mellanox/mlx5/core/en_selftest.c | 92 +++++++++++--------
3 files changed, 56 insertions(+), 43 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 7b8c8187543a..f5d147c3141a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -220,8 +220,6 @@ struct mlx5e_umr_wqe {
struct mlx5_mtt inline_mtts[0];
};
-extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
-
enum mlx5e_priv_flag {
MLX5E_PFLAG_RX_CQE_BASED_MODER,
MLX5E_PFLAG_TX_CQE_BASED_MODER,
@@ -916,6 +914,7 @@ void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s)
void mlx5e_init_l2_addr(struct mlx5e_priv *priv);
int mlx5e_self_test_num(struct mlx5e_priv *priv);
+int mlx5e_self_test_fill_strings(struct mlx5e_priv *priv, u8 *data);
void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
u64 *buf);
void mlx5e_set_rx_mode_work(struct work_struct *work);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 306fb5d6a36d..485f208691ea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -267,9 +267,7 @@ void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv, u32 stringset, u8 *data)
break;
case ETH_SS_TEST:
- for (i = 0; i < mlx5e_self_test_num(priv); i++)
- strcpy(data + i * ETH_GSTRING_LEN,
- mlx5e_self_tests[i]);
+ mlx5e_self_test_fill_strings(priv, data);
break;
case ETH_SS_STATS:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
index ce8ab1f01876..8c9163d2c646 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
@@ -35,30 +35,7 @@
#include <net/udp.h>
#include "en.h"
#include "en/port.h"
-
-enum {
- MLX5E_ST_LINK_STATE,
- MLX5E_ST_LINK_SPEED,
- MLX5E_ST_HEALTH_INFO,
-#ifdef CONFIG_INET
- MLX5E_ST_LOOPBACK,
-#endif
- MLX5E_ST_NUM,
-};
-
-const char mlx5e_self_tests[MLX5E_ST_NUM][ETH_GSTRING_LEN] = {
- "Link Test",
- "Speed Test",
- "Health Test",
-#ifdef CONFIG_INET
- "Loopback Test",
-#endif
-};
-
-int mlx5e_self_test_num(struct mlx5e_priv *priv)
-{
- return ARRAY_SIZE(mlx5e_self_tests);
-}
+#include "eswitch.h"
static int mlx5e_test_health_info(struct mlx5e_priv *priv)
{
@@ -265,6 +242,14 @@ static void mlx5e_test_loopback_cleanup(struct mlx5e_priv *priv,
mlx5e_refresh_tirs(priv, false, false);
}
+static int mlx5e_cond_loopback(struct mlx5e_priv *priv)
+{
+ if (is_mdev_switchdev_mode(priv->mdev))
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+
#define MLX5E_LB_VERIFY_TIMEOUT (msecs_to_jiffies(200))
static int mlx5e_test_loopback(struct mlx5e_priv *priv)
{
@@ -313,37 +298,47 @@ static int mlx5e_test_loopback(struct mlx5e_priv *priv)
}
#endif
-static int (*mlx5e_st_func[MLX5E_ST_NUM])(struct mlx5e_priv *) = {
- mlx5e_test_link_state,
- mlx5e_test_link_speed,
- mlx5e_test_health_info,
+typedef int (*mlx5e_st_func)(struct mlx5e_priv *);
+
+struct mlx5e_st {
+ char name[ETH_GSTRING_LEN];
+ mlx5e_st_func st_func;
+ mlx5e_st_func cond_func;
+};
+
+static struct mlx5e_st mlx5e_sts[] = {
+ { "Link Test", mlx5e_test_link_state },
+ { "Speed Test", mlx5e_test_link_speed },
+ { "Health Test", mlx5e_test_health_info },
#ifdef CONFIG_INET
- mlx5e_test_loopback,
+ { "Loopback Test", mlx5e_test_loopback, mlx5e_cond_loopback },
#endif
};
+#define MLX5E_ST_NUM ARRAY_SIZE(mlx5e_sts)
+
void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
u64 *buf)
{
struct mlx5e_priv *priv = netdev_priv(ndev);
- int i;
-
- memset(buf, 0, sizeof(u64) * MLX5E_ST_NUM);
+ int i, count = 0;
mutex_lock(&priv->state_lock);
netdev_info(ndev, "Self test begin..\n");
for (i = 0; i < MLX5E_ST_NUM; i++) {
- netdev_info(ndev, "\t[%d] %s start..\n",
- i, mlx5e_self_tests[i]);
- buf[i] = mlx5e_st_func[i](priv);
- netdev_info(ndev, "\t[%d] %s end: result(%lld)\n",
- i, mlx5e_self_tests[i], buf[i]);
+ struct mlx5e_st st = mlx5e_sts[i];
+
+ if (st.cond_func && st.cond_func(priv))
+ continue;
+ netdev_info(ndev, "\t[%d] %s start..\n", i, st.name);
+ buf[count] = st.st_func(priv);
+ netdev_info(ndev, "\t[%d] %s end: result(%lld)\n", i, st.name, buf[count]);
}
mutex_unlock(&priv->state_lock);
- for (i = 0; i < MLX5E_ST_NUM; i++) {
+ for (i = 0; i < count; i++) {
if (buf[i]) {
etest->flags |= ETH_TEST_FL_FAILED;
break;
@@ -352,3 +347,24 @@ void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
netdev_info(ndev, "Self test out: status flags(0x%x)\n",
etest->flags);
}
+
+int mlx5e_self_test_fill_strings(struct mlx5e_priv *priv, u8 *data)
+{
+ int i, count = 0;
+
+ for (i = 0; i < MLX5E_ST_NUM; i++) {
+ struct mlx5e_st st = mlx5e_sts[i];
+
+ if (st.cond_func && st.cond_func(priv))
+ continue;
+ if (data)
+ strcpy(data + count * ETH_GSTRING_LEN, st.name);
+ count++;
+ }
+ return count;
+}
+
+int mlx5e_self_test_num(struct mlx5e_priv *priv)
+{
+ return mlx5e_self_test_fill_strings(priv, NULL);
+}
--
2.31.1
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