diff options
Diffstat (limited to 'include/linux/thunderbolt.h')
| -rw-r--r-- | include/linux/thunderbolt.h | 54 |
1 files changed, 35 insertions, 19 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index 659a0a810fa1..e7c96c37174f 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -146,6 +146,7 @@ struct tb_property_dir *tb_property_parse_dir(const u32 *block, size_t block_len); ssize_t tb_property_format_dir(const struct tb_property_dir *dir, u32 *block, size_t block_len); +struct tb_property_dir *tb_property_copy_dir(const struct tb_property_dir *dir); struct tb_property_dir *tb_property_create_dir(const uuid_t *uuid); void tb_property_free_dir(struct tb_property_dir *dir); int tb_property_add_immediate(struct tb_property_dir *parent, const char *key, @@ -179,23 +180,24 @@ void tb_unregister_property_dir(const char *key, struct tb_property_dir *dir); * @route: Route string the other domain can be reached * @vendor: Vendor ID of the remote domain * @device: Device ID of the demote domain + * @local_max_hopid: Maximum input HopID of this host + * @remote_max_hopid: Maximum input HopID of the remote host * @lock: Lock to serialize access to the following fields of this structure * @vendor_name: Name of the vendor (or %NULL if not known) * @device_name: Name of the device (or %NULL if not known) * @link_speed: Speed of the link in Gb/s * @link_width: Width of the link (1 or 2) * @is_unplugged: The XDomain is unplugged - * @resume: The XDomain is being resumed * @needs_uuid: If the XDomain does not have @remote_uuid it will be * queried first - * @transmit_path: HopID which the remote end expects us to transmit - * @transmit_ring: Local ring (hop) where outgoing packets are pushed - * @receive_path: HopID which we expect the remote end to transmit - * @receive_ring: Local ring (hop) where incoming packets arrive * @service_ids: Used to generate IDs for the services - * @properties: Properties exported by the remote domain - * @property_block_gen: Generation of @properties - * @properties_lock: Lock protecting @properties. + * @in_hopids: Input HopIDs for DMA tunneling + * @out_hopids; Output HopIDs for DMA tunneling + * @local_property_block: Local block of properties + * @local_property_block_gen: Generation of @local_property_block + * @local_property_block_len: Length of the @local_property_block in dwords + * @remote_properties: Properties exported by the remote domain + * @remote_property_block_gen: Generation of @remote_properties * @get_uuid_work: Work used to retrieve @remote_uuid * @uuid_retries: Number of times left @remote_uuid is requested before * giving up @@ -225,21 +227,23 @@ struct tb_xdomain { u64 route; u16 vendor; u16 device; + unsigned int local_max_hopid; + unsigned int remote_max_hopid; struct mutex lock; const char *vendor_name; const char *device_name; unsigned int link_speed; unsigned int link_width; bool is_unplugged; - bool resume; bool needs_uuid; - u16 transmit_path; - u16 transmit_ring; - u16 receive_path; - u16 receive_ring; struct ida service_ids; - struct tb_property_dir *properties; - u32 property_block_gen; + struct ida in_hopids; + struct ida out_hopids; + u32 *local_property_block; + u32 local_property_block_gen; + u32 local_property_block_len; + struct tb_property_dir *remote_properties; + u32 remote_property_block_gen; struct delayed_work get_uuid_work; int uuid_retries; struct delayed_work get_properties_work; @@ -252,10 +256,22 @@ struct tb_xdomain { int tb_xdomain_lane_bonding_enable(struct tb_xdomain *xd); void tb_xdomain_lane_bonding_disable(struct tb_xdomain *xd); -int tb_xdomain_enable_paths(struct tb_xdomain *xd, u16 transmit_path, - u16 transmit_ring, u16 receive_path, - u16 receive_ring); -int tb_xdomain_disable_paths(struct tb_xdomain *xd); +int tb_xdomain_alloc_in_hopid(struct tb_xdomain *xd, int hopid); +void tb_xdomain_release_in_hopid(struct tb_xdomain *xd, int hopid); +int tb_xdomain_alloc_out_hopid(struct tb_xdomain *xd, int hopid); +void tb_xdomain_release_out_hopid(struct tb_xdomain *xd, int hopid); +int tb_xdomain_enable_paths(struct tb_xdomain *xd, int transmit_path, + int transmit_ring, int receive_path, + int receive_ring); +int tb_xdomain_disable_paths(struct tb_xdomain *xd, int transmit_path, + int transmit_ring, int receive_path, + int receive_ring); + +static inline int tb_xdomain_disable_all_paths(struct tb_xdomain *xd) +{ + return tb_xdomain_disable_paths(xd, -1, -1, -1, -1); +} + struct tb_xdomain *tb_xdomain_find_by_uuid(struct tb *tb, const uuid_t *uuid); struct tb_xdomain *tb_xdomain_find_by_route(struct tb *tb, u64 route); |