[dpdk-dev] [PATCH 5/8] net/mlx5: support flow item port of switch manager

[Xueming Li <xuemingl@nvidia.com>]

When sending packet from representor, the vport ID in transport domain
is E-Switch manager vport ID since representor shares resources of
eswitch manager. To match packet sent by representor, pattern has to be
vport_id==<esw-mgr-id> && txq==<sqn>

On BlueField, eswitch manager ID is 0xfffe. 0 on other NIC.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  3 +++
 drivers/net/mlx5/mlx5_flow_dv.c | 25 +++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 76ad53f2a1e..861e18fb3b1 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -18,6 +18,9 @@
 
 #include "mlx5.h"
 
+/* E-Switch Manager port, used for rte_flow_item_port_id. */
+#define MLX5_PORT_ESW_MGR UINT32_MAX
+
 /* Private rte flow items. */
 enum mlx5_rte_flow_item_type {
 	MLX5_RTE_FLOW_ITEM_TYPE_END = INT_MIN,
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 3f6f5dcfbad..d4242a4aa8d 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -15,6 +15,7 @@
 #include <rte_flow_driver.h>
 #include <rte_malloc.h>
 #include <rte_cycles.h>
+#include <rte_bus_pci.h>
 #include <rte_ip.h>
 #include <rte_gre.h>
 #include <rte_vxlan.h>
@@ -92,6 +93,23 @@ static int
 flow_dv_jump_tbl_resource_release(struct rte_eth_dev *dev,
 				  uint32_t rix_jump);
 
+static int16_t
+flow_dv_get_esw_manager_vport_id(struct rte_eth_dev *dev)
+{
+	struct mlx5_priv *priv = dev->data->dev_private;
+
+	if (priv->pci_dev == NULL)
+		return 0;
+	switch (priv->pci_dev->id.device_id) {
+	case PCI_DEVICE_ID_MELLANOX_CONNECTX5BF:
+	case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF:
+	case PCI_DEVICE_ID_MELLANOX_CONNECTX7BF:
+		return (int16_t)0xfffe;
+	default:
+		return 0;
+	}
+}
+
 /**
  * Initialize flow attributes structure according to flow items' types.
  *
@@ -2224,6 +2242,8 @@ flow_dv_validate_item_port_id(struct rte_eth_dev *dev,
 		return ret;
 	if (!spec)
 		return 0;
+	if (spec->id == MLX5_PORT_ESW_MGR)
+		return 0;
 	esw_priv = mlx5_port_to_eswitch_info(spec->id, false);
 	if (!esw_priv)
 		return rte_flow_error_set(error, rte_errno,
@@ -9691,6 +9711,11 @@ flow_dv_translate_item_port_id(struct rte_eth_dev *dev, void *matcher,
 	struct mlx5_priv *priv;
 	uint16_t mask, id;
 
+	if (pid_v && pid_v->id == MLX5_PORT_ESW_MGR) {
+		flow_dv_translate_item_source_vport(matcher, key,
+			flow_dv_get_esw_manager_vport_id(dev), 0xffff);
+		return 0;
+	}
 	mask = pid_m ? pid_m->id : 0xffff;
 	id = pid_v ? pid_v->id : dev->data->port_id;
 	priv = mlx5_port_to_eswitch_info(id, item == NULL);
-- 
2.33.0