diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index d1f8e9722f33..1cb5009195f9 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -127,6 +127,8 @@ struct tb_switch { * @dual_link_port: If the switch is connected using two ports, points * to the other port. * @link_nr: Is this primary or secondary port on the dual_link. + * @in_hopids: Currently allocated input HopIDs + * @out_hopids: Currently allocated output HopIDs */ struct tb_port { struct tb_regs_port_header config; @@ -139,6 +141,8 @@ struct tb_port { bool disabled; struct tb_port *dual_link_port; u8 link_nr:1; + struct ida in_hopids; + struct ida out_hopids; }; /** @@ -194,6 +198,9 @@ struct tb_path { int path_length; /* number of hops */ }; +/* HopIDs 0-7 are reserved by the Thunderbolt protocol */ +#define TB_PATH_MIN_HOPID 8 + /** * struct tb_cm_ops - Connection manager specific operations vector * @driver_ready: Called right after control channel is started. Used by @@ -453,6 +460,10 @@ static inline bool tb_switch_is_er(const struct tb_switch *sw) int tb_wait_for_port(struct tb_port *port, bool wait_if_unplugged); int tb_port_add_nfc_credits(struct tb_port *port, int credits); int tb_port_clear_counter(struct tb_port *port, int counter); +int tb_port_alloc_in_hopid(struct tb_port *port, int hopid, int max_hopid); +void tb_port_release_in_hopid(struct tb_port *port, int hopid); +int tb_port_alloc_out_hopid(struct tb_port *port, int hopid, int max_hopid); +void tb_port_release_out_hopid(struct tb_port *port, int hopid); int tb_switch_find_vse_cap(struct tb_switch *sw, enum tb_switch_vse_cap vsec); int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap); |