diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 322bbdc00d95..a558adf6ff10 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -155,6 +155,8 @@ struct tb_port { * @in_counter_index: Used counter index (not used in the driver * currently, %-1 to disable) * @next_hop_index: HopID of the packet when it is routed out from @out_port + * @initial_credits: Number of initial flow control credits allocated for + * the path * * Hop configuration is always done on the IN port of a switch. * in_port and out_port have to be on the same switch. Packets arriving on @@ -173,6 +175,7 @@ struct tb_path_hop { int in_hop_index; int in_counter_index; int next_hop_index; + unsigned int initial_credits; }; /** @@ -230,6 +233,7 @@ struct tb_path { /* HopIDs 0-7 are reserved by the Thunderbolt protocol */ #define TB_PATH_MIN_HOPID 8 +#define TB_PATH_MAX_HOPS 7 /** * struct tb_cm_ops - Connection manager specific operations vector @@ -346,6 +350,11 @@ static inline bool tb_port_has_remote(const struct tb_port *port) return true; } +static inline bool tb_port_is_pcie_up(const struct tb_port *port) +{ + return port && port->config.type == TB_TYPE_PCIE_UP; +} + static inline int tb_sw_read(struct tb_switch *sw, void *buffer, enum tb_cfg_space space, u32 offset, u32 length) { @@ -508,6 +517,11 @@ static inline struct tb_switch *tb_to_switch(struct device *dev) return NULL; } +static inline struct tb_switch *tb_switch_parent(struct tb_switch *sw) +{ + return tb_to_switch(sw->dev.parent); +} + static inline bool tb_switch_is_lr(const struct tb_switch *sw) { return sw->config.device_id == PCI_DEVICE_ID_INTEL_LIGHT_RIDGE; @@ -531,8 +545,12 @@ struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, 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); +bool tb_pci_port_is_enabled(struct tb_port *port); int tb_pci_port_enable(struct tb_port *port, bool enable); +struct tb_path *tb_path_discover(struct tb_port *src, int src_hopid, + struct tb_port *dst, int dst_hopid, + struct tb_port **last, const char *name); struct tb_path *tb_path_alloc(struct tb *tb, struct tb_port *src, int src_hopid, struct tb_port *dst, int dst_hopid, int link_nr, const char *name); |