net/mlx5_core: Extend struct mlx5_interface to support multiple protocols

Preparation for ethernet driver.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index e59e2a1..57c9809 100644 (file)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1362,6 +1362,7 @@ static struct mlx5_interface mlx5_ib_interface = {
        .add            = mlx5_ib_add,
        .remove         = mlx5_ib_remove,
        .event          = mlx5_ib_event,
+       .protocol       = MLX5_INTERFACE_PROTOCOL_IB,
 };
 
 static int __init mlx5_ib_init(void)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index cfc2902..28425e5 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -908,6 +908,28 @@ void mlx5_unregister_interface(struct mlx5_interface *intf)
 }
 EXPORT_SYMBOL(mlx5_unregister_interface);
 
+void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol)
+{
+       struct mlx5_priv *priv = &mdev->priv;
+       struct mlx5_device_context *dev_ctx;
+       unsigned long flags;
+       void *result = NULL;
+
+       spin_lock_irqsave(&priv->ctx_lock, flags);
+
+       list_for_each_entry(dev_ctx, &mdev->priv.ctx_list, list)
+               if ((dev_ctx->intf->protocol == protocol) &&
+                   dev_ctx->intf->get_dev) {
+                       result = dev_ctx->intf->get_dev(dev_ctx->context);
+                       break;
+               }
+
+       spin_unlock_irqrestore(&priv->ctx_lock, flags);
+
+       return result;
+}
+EXPORT_SYMBOL(mlx5_get_protocol_dev);
+
 static void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event,
                            unsigned long param)
 {

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index f250f65..9a90e75 100644 (file)
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -781,14 +781,22 @@ enum {
        MAX_MR_CACHE_ENTRIES    = 16,
 };
 
+enum {
+       MLX5_INTERFACE_PROTOCOL_IB  = 0,
+       MLX5_INTERFACE_PROTOCOL_ETH = 1,
+};
+
 struct mlx5_interface {
        void *                  (*add)(struct mlx5_core_dev *dev);
        void                    (*remove)(struct mlx5_core_dev *dev, void *context);
        void                    (*event)(struct mlx5_core_dev *dev, void *context,
                                         enum mlx5_dev_event event, unsigned long param);
+       void *                  (*get_dev)(void *context);
+       int                     protocol;
        struct list_head        list;
 };
 
+void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
 int mlx5_register_interface(struct mlx5_interface *intf);
 void mlx5_unregister_interface(struct mlx5_interface *intf);