diff options
Diffstat (limited to 'include/linux/thunderbolt.h')
| -rw-r--r-- | include/linux/thunderbolt.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index 9ddb83ad890f..e3b9af7be0ad 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -479,6 +479,24 @@ struct ring_frame; typedef void (*ring_cb)(struct tb_ring *, struct ring_frame *, bool canceled); /** + * enum ring_desc_flags - Flags for DMA ring descriptor + * %RING_DESC_ISOCH: Enable isonchronous DMA (Tx only) + * %RING_DESC_CRC_ERROR: In frame mode CRC check failed for the frame (Rx only) + * %RING_DESC_COMPLETED: Descriptor completed (set by NHI) + * %RING_DESC_POSTED: Always set this + * %RING_DESC_BUFFER_OVERRUN: RX buffer overrun + * %RING_DESC_INTERRUPT: Request an interrupt on completion + */ +enum ring_desc_flags { + RING_DESC_ISOCH = 0x1, + RING_DESC_CRC_ERROR = 0x1, + RING_DESC_COMPLETED = 0x2, + RING_DESC_POSTED = 0x4, + RING_DESC_BUFFER_OVERRUN = 0x04, + RING_DESC_INTERRUPT = 0x8, +}; + +/** * struct ring_frame - For use with ring_rx/ring_tx * @buffer_phy: DMA mapped address of the frame * @callback: Callback called when the frame is finished |