net/mlx5: Introduce access functions to modify/query vport vlans

Those functions are needed to notify the upcoming L2 table and SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) vlan table changes.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index 68aa51d..076197e 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -318,6 +318,118 @@ int mlx5_modify_nic_vport_mac_list(struct mlx5_core_dev *dev,
 }
 EXPORT_SYMBOL_GPL(mlx5_modify_nic_vport_mac_list);
 
+int mlx5_query_nic_vport_vlans(struct mlx5_core_dev *dev,
+                              u32 vport,
+                              u16 vlans[],
+                              int *size)
+{
+       u32 in[MLX5_ST_SZ_DW(query_nic_vport_context_in)];
+       void *nic_vport_ctx;
+       int req_list_size;
+       int max_list_size;
+       int out_sz;
+       void *out;
+       int err;
+       int i;
+
+       req_list_size = *size;
+       max_list_size = 1 << MLX5_CAP_GEN(dev, log_max_vlan_list);
+       if (req_list_size > max_list_size) {
+               mlx5_core_warn(dev, "Requested list size (%d) > (%d) max list size\n",
+                              req_list_size, max_list_size);
+               req_list_size = max_list_size;
+       }
+
+       out_sz = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in) +
+                       req_list_size * MLX5_ST_SZ_BYTES(vlan_layout);
+
+       memset(in, 0, sizeof(in));
+       out = kzalloc(out_sz, GFP_KERNEL);
+       if (!out)
+               return -ENOMEM;
+
+       MLX5_SET(query_nic_vport_context_in, in, opcode,
+                MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT);
+       MLX5_SET(query_nic_vport_context_in, in, allowed_list_type,
+                MLX5_NVPRT_LIST_TYPE_VLAN);
+       MLX5_SET(query_nic_vport_context_in, in, vport_number, vport);
+
+       if (vport)
+               MLX5_SET(query_nic_vport_context_in, in, other_vport, 1);
+
+       err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, out_sz);
+       if (err)
+               goto out;
+
+       nic_vport_ctx = MLX5_ADDR_OF(query_nic_vport_context_out, out,
+                                    nic_vport_context);
+       req_list_size = MLX5_GET(nic_vport_context, nic_vport_ctx,
+                                allowed_list_size);
+
+       *size = req_list_size;
+       for (i = 0; i < req_list_size; i++) {
+               void *vlan_addr = MLX5_ADDR_OF(nic_vport_context,
+                                              nic_vport_ctx,
+                                              current_uc_mac_address[i]);
+               vlans[i] = MLX5_GET(vlan_layout, vlan_addr, vlan);
+       }
+out:
+       kfree(out);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_vlans);
+
+int mlx5_modify_nic_vport_vlans(struct mlx5_core_dev *dev,
+                               u16 vlans[],
+                               int list_size)
+{
+       u32 out[MLX5_ST_SZ_DW(modify_nic_vport_context_out)];
+       void *nic_vport_ctx;
+       int max_list_size;
+       int in_sz;
+       void *in;
+       int err;
+       int i;
+
+       max_list_size = 1 << MLX5_CAP_GEN(dev, log_max_vlan_list);
+
+       if (list_size > max_list_size)
+               return -ENOSPC;
+
+       in_sz = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in) +
+               list_size * MLX5_ST_SZ_BYTES(vlan_layout);
+
+       memset(out, 0, sizeof(out));
+       in = kzalloc(in_sz, GFP_KERNEL);
+       if (!in)
+               return -ENOMEM;
+
+       MLX5_SET(modify_nic_vport_context_in, in, opcode,
+                MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
+       MLX5_SET(modify_nic_vport_context_in, in,
+                field_select.addresses_list, 1);
+
+       nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in, in,
+                                    nic_vport_context);
+
+       MLX5_SET(nic_vport_context, nic_vport_ctx,
+                allowed_list_type, MLX5_NVPRT_LIST_TYPE_VLAN);
+       MLX5_SET(nic_vport_context, nic_vport_ctx,
+                allowed_list_size, list_size);
+
+       for (i = 0; i < list_size; i++) {
+               void *vlan_addr = MLX5_ADDR_OF(nic_vport_context,
+                                              nic_vport_ctx,
+                                              current_uc_mac_address[i]);
+               MLX5_SET(vlan_layout, vlan_addr, vlan, vlans[i]);
+       }
+
+       err = mlx5_cmd_exec_check_status(dev, in, in_sz, out, sizeof(out));
+       kfree(in);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_modify_nic_vport_vlans);
+
 int mlx5_query_hca_vport_gid(struct mlx5_core_dev *dev, u8 other_vport,
                             u8 port_num, u16  vf_num, u16 gid_index,
                             union ib_gid *gid)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 2728b5f..39487d0 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -910,6 +910,13 @@ struct mlx5_ifc_mac_address_layout_bits {
        u8         mac_addr_31_0[0x20];
 };
 
+struct mlx5_ifc_vlan_layout_bits {
+       u8         reserved_0[0x14];
+       u8         vlan[0x0c];
+
+       u8         reserved_1[0x20];
+};
+
 struct mlx5_ifc_cong_control_r_roce_ecn_np_bits {
        u8         reserved_0[0xa0];
 

diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h
index dbbaed9..638f2ca 100644 (file)
--- a/include/linux/mlx5/vport.h
+++ b/include/linux/mlx5/vport.h
@@ -77,5 +77,12 @@ int mlx5_modify_nic_vport_promisc(struct mlx5_core_dev *mdev,
                                  int promisc_uc,
                                  int promisc_mc,
                                  int promisc_all);
+int mlx5_query_nic_vport_vlans(struct mlx5_core_dev *dev,
+                              u32 vport,
+                              u16 vlans[],
+                              int *size);
+int mlx5_modify_nic_vport_vlans(struct mlx5_core_dev *dev,
+                               u16 vlans[],
+                               int list_size);
 
 #endif /* __MLX5_VPORT_H__ */