diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index e2f304d4a65d..89e38aeea52b 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -213,6 +213,8 @@ struct tb_switch { * @list: Used to link ports to DP resources list * @total_credits: Total number of buffers available for this port * @ctl_credits: Buffers reserved for control path + * @dma_credits: Number of credits allocated for DMA tunneling for all + * DMA paths through this port. * * In USB4 terminology this structure represents an adapter (protocol or * lane adapter). @@ -236,6 +238,7 @@ struct tb_port { struct list_head list; unsigned int total_credits; unsigned int ctl_credits; + unsigned int dma_credits; }; /** @@ -941,6 +944,17 @@ bool tb_path_is_invalid(struct tb_path *path); bool tb_path_port_on_path(const struct tb_path *path, const struct tb_port *port); +/** + * tb_path_for_each_hop() - Iterate over each hop on path + * @path: Path whose hops to iterate + * @hop: Hop used as iterator + * + * Iterates over each hop on path. + */ +#define tb_path_for_each_hop(path, hop) \ + for ((hop) = &(path)->hops[0]; \ + (hop) <= &(path)->hops[(path)->path_length - 1]; (hop)++) + int tb_drom_read(struct tb_switch *sw); int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid); |