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Message-Id: <20230210221821.271571-5-saeed@kernel.org>
Date: Fri, 10 Feb 2023 14:18:10 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>, Roi Dayan <roid@...dia.com>,
Maor Dickman <maord@...dia.com>
Subject: [net-next 04/15] net/mlx5: Lag, set different uplink vport metadata in multiport eswitch mode
From: Roi Dayan <roid@...dia.com>
In a follow-up commit multiport eswitch mode will use a shared fdb.
In shared fdb there is a single eswitch fdb and traffic could come from any
port. to distinguish between the ports set a different metadata per uplink port.
Signed-off-by: Roi Dayan <roid@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/en_rep.c | 35 ++++++++++
.../net/ethernet/mellanox/mlx5/core/en_rep.h | 1 +
.../ethernet/mellanox/mlx5/core/lag/mpesw.c | 67 ++++++++++++++++++-
.../ethernet/mellanox/mlx5/core/lag/mpesw.h | 1 +
include/linux/mlx5/driver.h | 1 +
5 files changed, 104 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 8d29310c7e48..9b9203443085 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1007,8 +1007,23 @@ static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
priv->rx_res = NULL;
}
+static void mlx5e_rep_mpesw_work(struct work_struct *work)
+{
+ struct mlx5_rep_uplink_priv *uplink_priv =
+ container_of(work, struct mlx5_rep_uplink_priv,
+ mpesw_work);
+ struct mlx5e_rep_priv *rpriv =
+ container_of(uplink_priv, struct mlx5e_rep_priv,
+ uplink_priv);
+ struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
+
+ rep_vport_rx_rule_destroy(priv);
+ mlx5e_create_rep_vport_rx_rule(priv);
+}
+
static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
{
+ struct mlx5e_rep_priv *rpriv = priv->ppriv;
int err;
mlx5e_create_q_counters(priv);
@@ -1018,12 +1033,17 @@ static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
mlx5e_tc_int_port_init_rep_rx(priv);
+ INIT_WORK(&rpriv->uplink_priv.mpesw_work, mlx5e_rep_mpesw_work);
+
out:
return err;
}
static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
{
+ struct mlx5e_rep_priv *rpriv = priv->ppriv;
+
+ cancel_work_sync(&rpriv->uplink_priv.mpesw_work);
mlx5e_tc_int_port_cleanup_rep_rx(priv);
mlx5e_cleanup_rep_rx(priv);
mlx5e_destroy_q_counters(priv);
@@ -1132,6 +1152,19 @@ static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
return 0;
}
+static int mlx5e_rep_event_mpesw(struct mlx5e_priv *priv)
+{
+ struct mlx5e_rep_priv *rpriv = priv->ppriv;
+ struct mlx5_eswitch_rep *rep = rpriv->rep;
+
+ if (rep->vport != MLX5_VPORT_UPLINK)
+ return NOTIFY_DONE;
+
+ queue_work(priv->wq, &rpriv->uplink_priv.mpesw_work);
+
+ return NOTIFY_OK;
+}
+
static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
{
struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
@@ -1153,6 +1186,8 @@ static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event
if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
return mlx5e_rep_tc_event_port_affinity(priv);
+ else if (event == MLX5_DEV_EVENT_MULTIPORT_ESW)
+ return mlx5e_rep_event_mpesw(priv);
return NOTIFY_DONE;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
index b4e691760da9..a0891caf464e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
@@ -100,6 +100,7 @@ struct mlx5_rep_uplink_priv {
struct mlx5e_tc_int_port_priv *int_port_priv;
struct mlx5e_flow_meters *flow_meters;
+ struct work_struct mpesw_work;
};
struct mlx5e_rep_priv {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
index dd3cb9aa06fd..2f7f2af312d7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
@@ -5,8 +5,66 @@
#include <net/nexthop.h>
#include "lag/lag.h"
#include "eswitch.h"
+#include "esw/acl/ofld.h"
#include "lib/mlx5.h"
+static void mlx5_mpesw_metadata_cleanup(struct mlx5_lag *ldev)
+{
+ struct mlx5_core_dev *dev;
+ struct mlx5_eswitch *esw;
+ u32 pf_metadata;
+ int i;
+
+ for (i = 0; i < ldev->ports; i++) {
+ dev = ldev->pf[i].dev;
+ esw = dev->priv.eswitch;
+ pf_metadata = ldev->lag_mpesw.pf_metadata[i];
+ if (!pf_metadata)
+ continue;
+ mlx5_esw_acl_ingress_vport_metadata_update(esw, MLX5_VPORT_UPLINK, 0);
+ mlx5_notifier_call_chain(dev->priv.events, MLX5_DEV_EVENT_MULTIPORT_ESW,
+ (void *)0);
+ mlx5_esw_match_metadata_free(esw, pf_metadata);
+ ldev->lag_mpesw.pf_metadata[i] = 0;
+ }
+}
+
+static int mlx5_mpesw_metadata_set(struct mlx5_lag *ldev)
+{
+ struct mlx5_core_dev *dev;
+ struct mlx5_eswitch *esw;
+ u32 pf_metadata;
+ int i, err;
+
+ for (i = 0; i < ldev->ports; i++) {
+ dev = ldev->pf[i].dev;
+ esw = dev->priv.eswitch;
+ pf_metadata = mlx5_esw_match_metadata_alloc(esw);
+ if (!pf_metadata) {
+ err = -ENOSPC;
+ goto err_metadata;
+ }
+
+ ldev->lag_mpesw.pf_metadata[i] = pf_metadata;
+ err = mlx5_esw_acl_ingress_vport_metadata_update(esw, MLX5_VPORT_UPLINK,
+ pf_metadata);
+ if (err)
+ goto err_metadata;
+ }
+
+ for (i = 0; i < ldev->ports; i++) {
+ dev = ldev->pf[i].dev;
+ mlx5_notifier_call_chain(dev->priv.events, MLX5_DEV_EVENT_MULTIPORT_ESW,
+ (void *)0);
+ }
+
+ return 0;
+
+err_metadata:
+ mlx5_mpesw_metadata_cleanup(ldev);
+ return err;
+}
+
static int enable_mpesw(struct mlx5_lag *ldev)
{
struct mlx5_core_dev *dev = ldev->pf[MLX5_LAG_P1].dev;
@@ -21,6 +79,10 @@ static int enable_mpesw(struct mlx5_lag *ldev)
!mlx5_lag_check_prereq(ldev))
return -EOPNOTSUPP;
+ err = mlx5_mpesw_metadata_set(ldev);
+ if (err)
+ return err;
+
err = mlx5_activate_lag(ldev, NULL, MLX5_LAG_MODE_MPESW, false);
if (err) {
mlx5_core_warn(dev, "Failed to create LAG in MPESW mode (%d)\n", err);
@@ -30,13 +92,16 @@ static int enable_mpesw(struct mlx5_lag *ldev)
return 0;
out_err:
+ mlx5_mpesw_metadata_cleanup(ldev);
return err;
}
static void disable_mpesw(struct mlx5_lag *ldev)
{
- if (ldev->mode == MLX5_LAG_MODE_MPESW)
+ if (ldev->mode == MLX5_LAG_MODE_MPESW) {
+ mlx5_mpesw_metadata_cleanup(ldev);
mlx5_disable_lag(ldev);
+ }
}
static void mlx5_mpesw_work(struct work_struct *work)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h
index d857ea988bf2..02520f27a033 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h
@@ -9,6 +9,7 @@
struct lag_mpesw {
struct work_struct mpesw_work;
+ u32 pf_metadata[MLX5_MAX_PORTS];
};
enum mpesw_op {
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index ecd3b5448fe9..a4bb5842a948 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -217,6 +217,7 @@ struct mlx5_rsc_debug {
enum mlx5_dev_event {
MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
MLX5_DEV_EVENT_PORT_AFFINITY = 129,
+ MLX5_DEV_EVENT_MULTIPORT_ESW = 130,
};
enum mlx5_port_status {
--
2.39.1
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