From: Valentine Fatiev <valentinef@nvidia.com>
Subject: [PATCH] BACKPORT:
 drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c

Change-Id: I567baa0f229c4fdeefee919fe9bbb67f67061a41
---
 .../mellanox/mlx5/core/esw/devlink_port.c     | 148 ++++++++++++++++--
 1 file changed, 139 insertions(+), 9 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
@@ -2,9 +2,13 @@
 /* Copyright (c) 2020 Mellanox Technologies Ltd. */
 
 #include <linux/mlx5/driver.h>
+#ifdef HAVE_BASECODE_EXTRAS
+#include <net/devlink.h>
+#endif
 #include "eswitch.h"
 #include "mlx5_esw_devm.h"
 
+#ifdef HAVE_DEVLINK_PORT_ATRRS_SET_GET_SUPPORT
 static void
 mlx5_esw_get_port_parent_id(struct mlx5_core_dev *dev, struct netdev_phys_item_id *ppid)
 {
@@ -14,7 +18,9 @@ mlx5_esw_get_port_parent_id(struct mlx5_
 	ppid->id_len = sizeof(parent_id);
 	memcpy(ppid->id, &parent_id, sizeof(parent_id));
 }
+#endif
 
+#ifdef HAVE_DEVLINK_PORT_TYPE_ETH_SET
 static bool mlx5_esw_devlink_port_supported(struct mlx5_eswitch *esw, u16 vport_num)
 {
 	return (mlx5_core_is_ecpf(esw->dev) && vport_num == MLX5_VPORT_PF) ||
@@ -26,33 +32,76 @@ static void mlx5_esw_offloads_pf_vf_devl
 							   u16 vport_num,
 							   struct devlink_port *dl_port)
 {
+#ifdef HAVE_DEVLINK_PORT_ATRRS_SET_GET_SUPPORT
 	struct mlx5_core_dev *dev = esw->dev;
 	struct netdev_phys_item_id ppid = {};
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET_CONTROLLER_NUM)
 	u32 controller_num = 0;
 	bool external;
+#endif
 	u16 pfnum;
 
 	mlx5_esw_get_port_parent_id(dev, &ppid);
 	pfnum = mlx5_get_dev_index(dev);
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET_CONTROLLER_NUM)
 	external = mlx5_core_is_ecpf_esw_manager(dev);
 	if (external)
 		controller_num = dev->priv.eswitch->offloads.host_number + 1;
+#endif
 
+#ifdef HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET
 	if (vport_num == MLX5_VPORT_PF) {
 		memcpy(dl_port->attrs.switch_id.id, ppid.id, ppid.id_len);
 		dl_port->attrs.switch_id.id_len = ppid.id_len;
-		devlink_port_attrs_pci_pf_set(dl_port, controller_num, pfnum, external);
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET_CONTROLLER_NUM)
+       	devlink_port_attrs_pci_pf_set(dl_port, controller_num, pfnum, external);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET_GET_2_PARAMS)
+		devlink_port_attrs_pci_pf_set(dl_port, pfnum); 
+#else 
+		devlink_port_attrs_pci_pf_set(dl_port,
+				&ppid.id[0], ppid.id_len,
+				pfnum);
+#endif
 	} else if (mlx5_eswitch_is_vf_vport(esw, vport_num)) {
 		memcpy(dl_port->attrs.switch_id.id, ppid.id, ppid.id_len);
 		dl_port->attrs.switch_id.id_len = ppid.id_len;
-		devlink_port_attrs_pci_vf_set(dl_port, controller_num, pfnum,
-					      vport_num - 1, external);
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_CONTROLLER_NUM)
+ 		devlink_port_attrs_pci_vf_set(dl_port, controller_num, pfnum,
+ 					      vport_num - 1, external);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_3_PARAMS)
+		devlink_port_attrs_pci_vf_set(dl_port, pfnum, vport_num - 1);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_5_PARAMS)
+		devlink_port_attrs_pci_vf_set(dl_port,
+				&ppid.id[0], ppid.id_len,
+				pfnum, vport_num - 1);
+#endif
 	}  else if (mlx5_core_is_ec_vf_vport(esw->dev, vport_num)) {
 		memcpy(dl_port->attrs.switch_id.id, ppid.id, ppid.id_len);
 		dl_port->attrs.switch_id.id_len = ppid.id_len;
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_CONTROLLER_NUM)
 		devlink_port_attrs_pci_vf_set(dl_port, 0, pfnum,
 					      vport_num - 1, false);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_3_PARAMS)
+		devlink_port_attrs_pci_vf_set(dl_port, pfnum, vport_num - 1);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_VF_SET_GET_5_PARAMS)
+		devlink_port_attrs_pci_vf_set(dl_port,
+				&ppid.id[0], ppid.id_len,
+				pfnum, vport_num - 1);
+#endif
 	}
+#else
+	if (vport_num != MLX5_VPORT_UPLINK)
+                devlink_port_attrs_set(dl_port,
+                                DEVLINK_PORT_FLAVOUR_VIRTUAL,
+                                0, false , 0
+#ifdef HAVE_DEVLINK_PORT_ATRRS_SET_GET_7_PARAMS
+                                ,NULL, 0
+#endif
+		);
+#endif /* HAVE_DEVLINK_PORT_ATTRS_PCI_PF_SET */
+#else
+	return;
+#endif /* HAVE_DEVLINK_PORT_ATRRS_SET_GET_SUPPORT */
 }
 
 int mlx5_esw_offloads_pf_vf_devlink_port_init(struct mlx5_eswitch *esw,
@@ -85,7 +134,9 @@ void mlx5_esw_offloads_pf_vf_devlink_por
 	kfree(vport->dl_port);
 	vport->dl_port = NULL;
 }
+#endif
 
+#ifdef HAVE_DEVLINK_PORT_OPS
 static const struct devlink_port_ops mlx5_esw_pf_vf_dl_port_ops = {
 	.port_fn_hw_addr_get = mlx5_devlink_port_fn_hw_addr_get,
 	.port_fn_hw_addr_set = mlx5_devlink_port_fn_hw_addr_set,
@@ -94,14 +145,19 @@ static const struct devlink_port_ops mlx
 	.port_fn_migratable_get = mlx5_devlink_port_fn_migratable_get,
 	.port_fn_migratable_set = mlx5_devlink_port_fn_migratable_set,
 #ifdef CONFIG_XFRM_OFFLOAD
+#ifdef HAVE_DEVLINK_IPSEC_CRYPTO
 	.port_fn_ipsec_crypto_get = mlx5_devlink_port_fn_ipsec_crypto_get,
 	.port_fn_ipsec_crypto_set = mlx5_devlink_port_fn_ipsec_crypto_set,
 	.port_fn_ipsec_packet_get = mlx5_devlink_port_fn_ipsec_packet_get,
 	.port_fn_ipsec_packet_set = mlx5_devlink_port_fn_ipsec_packet_set,
+#endif /* HAVE_DEVLINK_IPSEC_PACKET */
 #endif /* CONFIG_XFRM_OFFLOAD */
-	// forwardport open in backports .port_fn_max_io_eqs_get = mlx5_devlink_port_fn_max_io_eqs_get,
-	// forwardport open in backports .port_fn_max_io_eqs_set = mlx5_devlink_port_fn_max_io_eqs_set,
+#ifdef HAVE_DEVLINK_PORT_MAX_IO_EQS
+	.port_fn_max_io_eqs_get = mlx5_devlink_port_fn_max_io_eqs_get,
+	.port_fn_max_io_eqs_set = mlx5_devlink_port_fn_max_io_eqs_set,
+#endif /* HAVE_DEVLINK_PORT_MAX_IO_EQS */
 };
+#endif
 
 static void mlx5_esw_offloads_sf_devlink_port_attrs_set(struct mlx5_eswitch *esw,
 							struct devlink_port *dl_port,
@@ -113,9 +169,18 @@ static void mlx5_esw_offloads_sf_devlink
 
 	pfnum = mlx5_get_dev_index(dev);
 	mlx5_esw_get_port_parent_id(dev, &ppid);
+#if defined(HAVE_DEVLINK_PORT_HAS_SWITCH_ID)
 	memcpy(dl_port->attrs.switch_id.id, &ppid.id[0], ppid.id_len);
 	dl_port->attrs.switch_id.id_len = ppid.id_len;
+#endif
+#if defined(HAVE_DEVLINK_PORT_HAS_SWITCH_PORT)
+	dl_port->attrs.switch_port = true;
+#endif
+#if defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_5_PARAMS)
 	devlink_port_attrs_pci_sf_set(dl_port, controller, pfnum, sfnum, !!controller);
+#elif defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_4_PARAMS)
+	devlink_port_attrs_pci_sf_set(dl_port, controller, pfnum, sfnum);
+#endif
 }
 
 int mlx5_esw_offloads_sf_devlink_port_init(struct mlx5_eswitch *esw, struct mlx5_vport *vport,
@@ -135,9 +200,12 @@ void mlx5_esw_offloads_sf_devlink_port_c
 	vport->dl_port = NULL;
 }
 
+#ifdef HAVE_DEVLINK_PORT_OPS
 static const struct devlink_port_ops mlx5_esw_dl_sf_port_ops = {
 #ifdef CONFIG_MLX5_SF_MANAGER
+#ifdef HAVE_NDO_PORT_DEL_IN_DEVLINK_PORT
 	.port_del = mlx5_devlink_sf_port_del,
+#endif /* HAVE_NDO_PORT_DEL_IN_DEVLINK_PORT */
 #endif
 	.port_fn_hw_addr_get = mlx5_devlink_port_fn_hw_addr_get,
 	.port_fn_hw_addr_set = mlx5_devlink_port_fn_hw_addr_set,
@@ -147,61 +215,123 @@ static const struct devlink_port_ops mlx
 	.port_fn_state_get = mlx5_devlink_sf_port_fn_state_get,
 	.port_fn_state_set = mlx5_devlink_sf_port_fn_state_set,
 #endif
-	// forwardport open in backports .port_fn_max_io_eqs_get = mlx5_devlink_port_fn_max_io_eqs_get,
-	// forwardport open in backports .port_fn_max_io_eqs_set = mlx5_devlink_port_fn_max_io_eqs_set,
+#ifdef HAVE_DEVLINK_PORT_MAX_IO_EQS
+	.port_fn_max_io_eqs_get = mlx5_devlink_port_fn_max_io_eqs_get,
+	.port_fn_max_io_eqs_set = mlx5_devlink_port_fn_max_io_eqs_set,
+#endif /* HAVE_DEVLINK_PORT_MAX_IO_EQS */
 };
+#endif /* HAVE_DEVLINK_PORT_OPS */
 
 int mlx5_esw_offloads_devlink_port_register(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
 {
+#ifdef HAVE_DEVLINK_PORT_TYPE_ETH_SET
 	struct mlx5_core_dev *dev = esw->dev;
 	const struct devlink_port_ops *ops;
 	struct mlx5_devlink_port *dl_port;
 	u16 vport_num = vport->vport;
 	unsigned int dl_port_index;
 	struct devlink *devlink;
-	int err;
+	int err = 0;
 
 	dl_port = vport->dl_port;
 	if (!dl_port)
 		return 0;
 
+#ifdef HAVE_DEVLINK_PORT_OPS
 	if (mlx5_esw_is_sf_vport(esw, vport_num))
 		ops = &mlx5_esw_dl_sf_port_ops;
 	else if (mlx5_eswitch_is_pf_vf_vport(esw, vport_num))
 		ops = &mlx5_esw_pf_vf_dl_port_ops;
 	else
+#endif
 		ops = NULL;
 
 	devlink = priv_to_devlink(dev);
 	dl_port_index = mlx5_esw_vport_to_devlink_port_index(dev, vport_num);
+#ifdef HAVE_DEVLINK_PORT_OPS
 	err = devl_port_register_with_ops(devlink, &dl_port->dl_port, dl_port_index, ops);
+#elif defined(HAVE_DEVL_PORT_REGISTER)
+	err = devl_port_register(devlink, &dl_port->dl_port, dl_port_index);
+#else
+#if  !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_4_PARAMS) && \
+     !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_5_PARAMS)
+	if (!mlx5_esw_is_sf_vport(esw, vport_num)) 
+#endif
+	err = devlink_port_register(devlink, &dl_port->dl_port, dl_port_index);
+
+#if  !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_4_PARAMS) && \
+     !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_5_PARAMS)
+	else
+		dl_port->dl_port.devlink = devlink;
+#endif
+#endif
 	if (err)
 		return err;
 
+#ifdef HAVE_DEVLINK_HAS_RATE_FUNCTIONS
+#ifdef HAVE_DEVL_PORT_REGISTER
+#ifdef HAVE_DEVL_RATE_LEAF_CREATE_GET_3_PARAMS
 	err = devl_rate_leaf_create(&dl_port->dl_port, vport, NULL);
+#else
+	err = devl_rate_leaf_create(&dl_port->dl_port, vport);
+#endif /* HAVE_DEVL_RATE_LEAF_CREATE_GET_3_PARAMS */ 
+#else
+	err = devlink_rate_leaf_create(&dl_port->dl_port, vport);
+#endif
 	if (err)
 		goto rate_err;
+#endif
 
 	return 0;
 
+#ifdef HAVE_DEVLINK_HAS_RATE_FUNCTIONS
 rate_err:
+#ifdef HAVE_DEVL_PORT_REGISTER
 	devl_port_unregister(&dl_port->dl_port);
-	return err;
+#else
+#if  !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_4_PARAMS) && \
+     !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_5_PARAMS)
+	if (!mlx5_esw_is_sf_vport(vport->dev->priv.eswitch, vport_num))
+#endif
+		devlink_port_unregister(&dl_port->dl_port);
+#endif
+#endif
+ 	return err;
+#else
+	return 0;
+#endif
 }
 
 void mlx5_esw_offloads_devlink_port_unregister(struct mlx5_vport *vport)
 {
+#ifdef HAVE_DEVLINK_PORT_TYPE_ETH_SET
 	struct mlx5_devlink_port *dl_port;
 
 	if (!vport->dl_port)
 		return;
 	dl_port = vport->dl_port;
 
+#ifdef HAVE_DEVLINK_HAS_RATE_FUNCTIONS
 	if (!test_bit(MLX5_BREAK_FW_WAIT, &vport->dev->intf_state))
 		mlx5_esw_qos_vport_update_node(vport, NULL, NULL);
+#ifdef HAVE_DEVL_PORT_REGISTER
 	devl_rate_leaf_destroy(&dl_port->dl_port);
 
+#else
+	devlink_rate_leaf_destroy(&dl_port->dl_port);
+#endif
+#endif
+ 
+#ifdef HAVE_DEVL_PORT_REGISTER
 	devl_port_unregister(&dl_port->dl_port);
+#else
+#if  !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_4_PARAMS) && \
+     !defined(HAVE_DEVLINK_PORT_ATTRS_PCI_SF_SET_GET_5_PARAMS)
+	if (!mlx5_esw_is_sf_vport(vport->dev->priv.eswitch, vport->vport))
+#endif
+		devlink_port_unregister(&dl_port->dl_port);
+#endif
+#endif
 }
 
 struct devlink_port *mlx5_esw_offloads_devlink_port(struct mlx5_eswitch *esw, u16 vport_num)
