Merge tag 'mlx5-next-vhca-id' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-next-vhca-id

A preparation patchset for adjacent function vports.

Adjacent functions can delegate their SR-IOV VFs to sibling PFs,
allowing for more flexible and scalable management in multi-host and
ECPF-to-host scenarios. Adjacent vports can be managed by the management
PF via their unique vhca id and can't be managed by function index as the
index can conflict with the local vports/vfs.

This series provides:

- Use the cached vcha id instead of querying it every time from fw
- Query hca cap using vhca id instead of function id when FW supports it
- Add HW capabilities and required definitions for adjacent function vports

* tag 'mlx5-next-vhca-id' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  {rdma,net}/mlx5: export mlx5_vport_get_vhca_id
  net/mlx5: E-Switch, Set/Query hca cap via vhca id
  net/mlx5: E-Switch, Cache vport vhca id on first cap query
  net/mlx5: mlx5_ifc, Add hardware definitions needed for adjacent vports
====================

Link: https://patch.msgid.link/20250815194901.298689-1-saeed@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

2 files changed, 131 insertions, 4 deletions

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 8360d9011d4f..44d497272162 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -189,6 +189,9 @@ enum {
 	MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS        = 0x727,
 	MLX5_CMD_OP_RELEASE_XRQ_ERROR             = 0x729,
 	MLX5_CMD_OP_MODIFY_XRQ                    = 0x72a,
+	MLX5_CMD_OPCODE_QUERY_DELEGATED_VHCA      = 0x732,
+	MLX5_CMD_OPCODE_CREATE_ESW_VPORT          = 0x733,
+	MLX5_CMD_OPCODE_DESTROY_ESW_VPORT         = 0x734,
 	MLX5_CMD_OP_QUERY_ESW_FUNCTIONS           = 0x740,
 	MLX5_CMD_OP_QUERY_VPORT_STATE             = 0x750,
 	MLX5_CMD_OP_MODIFY_VPORT_STATE            = 0x751,
@@ -2207,7 +2210,19 @@ struct mlx5_ifc_cmd_hca_cap_2_bits {
 
 	u8	   reserved_at_440[0x8];
 	u8	   max_num_eqs_24b[0x18];
-	u8	   reserved_at_460[0x3a0];
+
+	u8         reserved_at_460[0x160];
+
+	u8         query_adjacent_functions_id[0x1];
+	u8         ingress_egress_esw_vport_connect[0x1];
+	u8         function_id_type_vhca_id[0x1];
+	u8         reserved_at_5c3[0xd];
+	u8         delegate_vhca_management_profiles[0x10];
+
+	u8         delegated_vhca_max[0x10];
+	u8         delegate_vhca_max[0x10];
+
+	u8         reserved_at_600[0x200];
 };
 
 enum mlx5_ifc_flow_destination_type {
@@ -5159,7 +5174,9 @@ struct mlx5_ifc_set_hca_cap_in_bits {
 
 	u8         other_function[0x1];
 	u8         ec_vf_function[0x1];
-	u8         reserved_at_42[0xe];
+	u8         reserved_at_42[0x1];
+	u8         function_id_type[0x1];
+	u8         reserved_at_44[0xc];
 	u8         function_id[0x10];
 
 	u8         reserved_at_60[0x20];
@@ -6357,7 +6374,9 @@ struct mlx5_ifc_query_hca_cap_in_bits {
 
 	u8         other_function[0x1];
 	u8         ec_vf_function[0x1];
-	u8         reserved_at_42[0xe];
+	u8         reserved_at_42[0x1];
+	u8         function_id_type[0x1];
+	u8         reserved_at_44[0xc];
 	u8         function_id[0x10];
 
 	u8         reserved_at_60[0x20];
@@ -6983,6 +7002,28 @@ struct mlx5_ifc_query_esw_vport_context_in_bits {
 	u8         reserved_at_60[0x20];
 };
 
+struct mlx5_ifc_destroy_esw_vport_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+};
+
+struct mlx5_ifc_destroy_esw_vport_in_bits {
+	u8         opcode[0x10];
+	u8         uid[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         vport_num[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
 struct mlx5_ifc_modify_esw_vport_context_out_bits {
 	u8         status[0x8];
 	u8         reserved_at_8[0x18];
@@ -7484,6 +7525,85 @@ struct mlx5_ifc_query_adapter_in_bits {
 	u8         reserved_at_40[0x40];
 };
 
+struct mlx5_ifc_function_vhca_rid_info_reg_bits {
+	u8         host_number[0x8];
+	u8         host_pci_device_function[0x8];
+	u8         host_pci_bus[0x8];
+	u8         reserved_at_18[0x3];
+	u8         pci_bus_assigned[0x1];
+	u8         function_type[0x4];
+
+	u8         parent_pci_device_function[0x8];
+	u8         parent_pci_bus[0x8];
+	u8         vhca_id[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         function_id[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
+struct mlx5_ifc_delegated_function_vhca_rid_info_bits {
+	struct mlx5_ifc_function_vhca_rid_info_reg_bits function_vhca_rid_info;
+
+	u8         reserved_at_80[0x18];
+	u8         manage_profile[0x8];
+
+	u8         reserved_at_a0[0x60];
+};
+
+struct mlx5_ifc_query_delegated_vhca_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+
+	u8         reserved_at_60[0x10];
+	u8         functions_count[0x10];
+
+	u8         reserved_at_80[0x80];
+
+	struct mlx5_ifc_delegated_function_vhca_rid_info_bits
+			delegated_function_vhca_rid_info[];
+};
+
+struct mlx5_ifc_query_delegated_vhca_in_bits {
+	u8         opcode[0x10];
+	u8         uid[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_create_esw_vport_out_bits {
+	u8         status[0x8];
+	u8         reserved_at_8[0x18];
+
+	u8         syndrome[0x20];
+
+	u8         reserved_at_40[0x20];
+
+	u8         reserved_at_60[0x10];
+	u8         vport_num[0x10];
+};
+
+struct mlx5_ifc_create_esw_vport_in_bits {
+	u8         opcode[0x10];
+	u8         reserved_at_10[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         op_mod[0x10];
+
+	u8         reserved_at_40[0x10];
+	u8         managed_vhca_id[0x10];
+
+	u8         reserved_at_60[0x20];
+};
+
 struct mlx5_ifc_qp_2rst_out_bits {
 	u8         status[0x8];
 	u8         reserved_at_8[0x18];
@@ -7611,7 +7731,12 @@ struct mlx5_ifc_modify_vport_state_in_bits {
 	u8         reserved_at_41[0xf];
 	u8         vport_number[0x10];
 
-	u8         reserved_at_60[0x18];
+	u8         reserved_at_60[0x10];
+	u8         ingress_connect[0x1];
+	u8         egress_connect[0x1];
+	u8         ingress_connect_valid[0x1];
+	u8         egress_connect_valid[0x1];
+	u8         reserved_at_74[0x4];
 	u8         admin_state[0x4];
 	u8         reserved_at_7c[0x4];
 };
diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h
index c36cc6d82926..c87b9507cfa1 100644
--- a/include/linux/mlx5/vport.h
+++ b/include/linux/mlx5/vport.h
@@ -135,4 +135,6 @@ int mlx5_nic_vport_unaffiliate_multiport(struct mlx5_core_dev *port_mdev);
 u64 mlx5_query_nic_system_image_guid(struct mlx5_core_dev *mdev);
 int mlx5_vport_get_other_func_cap(struct mlx5_core_dev *dev, u16 vport, void *out,
 				  u16 opmod);
+int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id);
+
 #endif /* __MLX5_VPORT_H__ */