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path: root/drivers/thunderbolt/tunnel.h
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Diffstat (limited to 'drivers/thunderbolt/tunnel.h')
-rw-r--r--drivers/thunderbolt/tunnel.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/thunderbolt/tunnel.h b/drivers/thunderbolt/tunnel.h
index c68bbcd3a62c..ba888da005f5 100644
--- a/drivers/thunderbolt/tunnel.h
+++ b/drivers/thunderbolt/tunnel.h
@@ -27,8 +27,11 @@ enum tb_tunnel_type {
* @npaths: Number of paths in @paths
* @init: Optional tunnel specific initialization
* @activate: Optional tunnel specific activation/deactivation
+ * @consumed_bandwidth: Return how much bandwidth the tunnel consumes
* @list: Tunnels are linked using this field
* @type: Type of the tunnel
+ * @max_bw: Maximum bandwidth (Mb/s) available for the tunnel (only for DP).
+ * Only set if the bandwidth needs to be limited.
*/
struct tb_tunnel {
struct tb *tb;
@@ -38,8 +41,10 @@ struct tb_tunnel {
size_t npaths;
int (*init)(struct tb_tunnel *tunnel);
int (*activate)(struct tb_tunnel *tunnel, bool activate);
+ int (*consumed_bandwidth)(struct tb_tunnel *tunnel);
struct list_head list;
enum tb_tunnel_type type;
+ unsigned int max_bw;
};
struct tb_tunnel *tb_tunnel_discover_pci(struct tb *tb, struct tb_port *down);
@@ -47,7 +52,7 @@ struct tb_tunnel *tb_tunnel_alloc_pci(struct tb *tb, struct tb_port *up,
struct tb_port *down);
struct tb_tunnel *tb_tunnel_discover_dp(struct tb *tb, struct tb_port *in);
struct tb_tunnel *tb_tunnel_alloc_dp(struct tb *tb, struct tb_port *in,
- struct tb_port *out);
+ struct tb_port *out, int max_bw);
struct tb_tunnel *tb_tunnel_alloc_dma(struct tb *tb, struct tb_port *nhi,
struct tb_port *dst, int transmit_ring,
int transmit_path, int receive_ring,
@@ -58,6 +63,9 @@ int tb_tunnel_activate(struct tb_tunnel *tunnel);
int tb_tunnel_restart(struct tb_tunnel *tunnel);
void tb_tunnel_deactivate(struct tb_tunnel *tunnel);
bool tb_tunnel_is_invalid(struct tb_tunnel *tunnel);
+bool tb_tunnel_switch_on_path(const struct tb_tunnel *tunnel,
+ const struct tb_switch *sw);
+int tb_tunnel_consumed_bandwidth(struct tb_tunnel *tunnel);
static inline bool tb_tunnel_is_pci(const struct tb_tunnel *tunnel)
{