diff options
Diffstat (limited to 'include/uapi/linux/io_uring/zcrx.h')
| -rw-r--r-- | include/uapi/linux/io_uring/zcrx.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/include/uapi/linux/io_uring/zcrx.h b/include/uapi/linux/io_uring/zcrx.h index 5ce02c7a6096..15c05c45ce36 100644 --- a/include/uapi/linux/io_uring/zcrx.h +++ b/include/uapi/linux/io_uring/zcrx.h @@ -65,6 +65,32 @@ enum zcrx_features { * value in struct io_uring_zcrx_ifq_reg::rx_buf_len. */ ZCRX_FEATURE_RX_PAGE_SIZE = 1 << 0, + ZCRX_FEATURE_NOTIFICATION = 1 << 1, +}; + +enum zcrx_notification_type { + ZCRX_NOTIF_NO_BUFFERS, + ZCRX_NOTIF_COPY, + + __ZCRX_NOTIF_TYPE_LAST, +}; + +enum zcrx_notification_desc_flags { + /* If set, stats_offset holds a valid offset to a notif_stats struct */ + ZCRX_NOTIF_DESC_FLAG_STATS = 1 << 0, +}; + +struct zcrx_notif_stats { + __u64 copy_count; /* cumulative copy-fallback CQEs */ + __u64 copy_bytes; /* cumulative bytes copied */ +}; + +struct zcrx_notification_desc { + __u64 user_data; + __u32 type_mask; + __u32 flags; /* see enum zcrx_notification_desc_flags */ + __u64 stats_offset; /* offset from the beginning of refill ring region for stats */ + __u64 __resv2[9]; }; /* @@ -82,12 +108,14 @@ struct io_uring_zcrx_ifq_reg { struct io_uring_zcrx_offsets offsets; __u32 zcrx_id; __u32 rx_buf_len; - __u64 __resv[3]; + __u64 notif_desc; /* see struct zcrx_notification_desc */ + __u64 __resv[2]; }; enum zcrx_ctrl_op { ZCRX_CTRL_FLUSH_RQ, ZCRX_CTRL_EXPORT, + ZCRX_CTRL_ARM_NOTIFICATION, __ZCRX_CTRL_LAST, }; @@ -101,6 +129,11 @@ struct zcrx_ctrl_export { __u32 __resv1[11]; }; +struct zcrx_ctrl_arm_notif { + __u32 notif_type; + __u32 __resv[11]; +}; + struct zcrx_ctrl { __u32 zcrx_id; __u32 op; /* see enum zcrx_ctrl_op */ @@ -109,6 +142,7 @@ struct zcrx_ctrl { union { struct zcrx_ctrl_export zc_export; struct zcrx_ctrl_flush_rq zc_flush; + struct zcrx_ctrl_arm_notif zc_arm_notif; }; }; |