net/mlx5_core: Introduce access functions to query vport RoCE fields

Introduce access functions to query NIC vport system_image_guid,
node_guid and qkey_viol_cntr.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

3 files changed, 76 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index 245ff4a03dd6..ecb274ae9a81 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -103,6 +103,68 @@ void mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr)
 }
 EXPORT_SYMBOL(mlx5_query_nic_vport_mac_address);
 
+int mlx5_query_nic_vport_system_image_guid(struct mlx5_core_dev *mdev,
+                                           u64 *system_image_guid)
+{
+        u32 *out;
+        int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+
+        out = mlx5_vzalloc(outlen);
+        if (!out)
+                return -ENOMEM;
+
+        mlx5_query_nic_vport_context(mdev, out, outlen);
+
+        *system_image_guid = MLX5_GET64(query_nic_vport_context_out, out,
+                                        nic_vport_context.system_image_guid);
+
+        kfree(out);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_system_image_guid);
+
+int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid)
+{
+        u32 *out;
+        int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+
+        out = mlx5_vzalloc(outlen);
+        if (!out)
+                return -ENOMEM;
+
+        mlx5_query_nic_vport_context(mdev, out, outlen);
+
+        *node_guid = MLX5_GET64(query_nic_vport_context_out, out,
+                                nic_vport_context.node_guid);
+
+        kfree(out);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_node_guid);
+
+int mlx5_query_nic_vport_qkey_viol_cntr(struct mlx5_core_dev *mdev,
+                                        u16 *qkey_viol_cntr)
+{
+        u32 *out;
+        int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
+
+        out = mlx5_vzalloc(outlen);
+        if (!out)
+                return -ENOMEM;
+
+        mlx5_query_nic_vport_context(mdev, out, outlen);
+
+        *qkey_viol_cntr = MLX5_GET(query_nic_vport_context_out, out,
+                                   nic_vport_context.qkey_violation_counter);
+
+        kfree(out);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_qkey_viol_cntr);
+
 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 1565324eb620..49b34c6466ac 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -2141,7 +2141,15 @@ struct mlx5_ifc_nic_vport_context_bits {
         u8         reserved_0[0x1f];
         u8         roce_en[0x1];
 
-        u8         reserved_1[0x760];
+        u8         reserved_1[0x120];
+
+        u8         system_image_guid[0x40];
+        u8         port_guid[0x40];
+        u8         node_guid[0x40];
+
+        u8         reserved_5[0x140];
+        u8         qkey_violation_counter[0x10];
+        u8         reserved_6[0x430];
 
         u8         reserved_2[0x5];
         u8         allowed_list_type[0x3];
diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h
index 4c9ac604cccd..dfb2d9497d2d 100644
--- a/include/linux/mlx5/vport.h
+++ b/include/linux/mlx5/vport.h
@@ -37,6 +37,11 @@
 
 u8 mlx5_query_vport_state(struct mlx5_core_dev *mdev, u8 opmod);
 void mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr);
+int mlx5_query_nic_vport_system_image_guid(struct mlx5_core_dev *mdev,
+                                           u64 *system_image_guid);
+int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid);
+int mlx5_query_nic_vport_qkey_viol_cntr(struct mlx5_core_dev *mdev,
+                                        u16 *qkey_viol_cntr);
 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);