1 files changed, 31 insertions, 87 deletions

diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index b5b23c0d5283..17ac1b785440 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -10,6 +10,8 @@
 
 #include <linux/fs.h>
 #include <linux/types.h>
+#include <linux/io_uring/zcrx.h>
+
 /*
  * this file is shared with liburing and that has to autodetect
  * if linux/time_types.h is available or not, it can
@@ -188,7 +190,8 @@ enum io_uring_sqe_flags_bit {
 /*
  * If COOP_TASKRUN is set, get notified if task work is available for
  * running and a kernel transition would be needed to run it. This sets
- * IORING_SQ_TASKRUN in the sq ring flags. Not valid with COOP_TASKRUN.
+ * IORING_SQ_TASKRUN in the sq ring flags. Not valid without COOP_TASKRUN
+ * or DEFER_TASKRUN.
  */
 #define IORING_SETUP_TASKRUN_FLAG	(1U << 9)
 #define IORING_SETUP_SQE128		(1U << 10) /* SQEs are 128 byte */
@@ -237,6 +240,18 @@ enum io_uring_sqe_flags_bit {
  */
 #define IORING_SETUP_SQE_MIXED		(1U << 19)
 
+/*
+ * When set, io_uring ignores SQ head and tail and fetches SQEs to submit
+ * starting from index 0 instead from the index stored in the head pointer.
+ * IOW, the user should place all SQE at the beginning of the SQ memory
+ * before issuing a submission syscall.
+ *
+ * It requires IORING_SETUP_NO_SQARRAY and is incompatible with
+ * IORING_SETUP_SQPOLL. The user must also never change the SQ head and tail
+ * values and keep it set to 0. Any other value is undefined behaviour.
+ */
+#define IORING_SETUP_SQ_REWIND		(1U << 20)
+
 enum io_uring_op {
 	IORING_OP_NOP,
 	IORING_OP_READV,
@@ -328,6 +343,10 @@ enum io_uring_op {
 
 /*
  * sqe->timeout_flags
+ *
+ * IORING_TIMEOUT_IMMEDIATE_ARG:	If set, sqe->addr stores the timeout
+ *					value in nanoseconds instead of
+ *					pointing to a timespec.
  */
 #define IORING_TIMEOUT_ABS		(1U << 0)
 #define IORING_TIMEOUT_UPDATE		(1U << 1)
@@ -336,6 +355,7 @@ enum io_uring_op {
 #define IORING_LINK_TIMEOUT_UPDATE	(1U << 4)
 #define IORING_TIMEOUT_ETIME_SUCCESS	(1U << 5)
 #define IORING_TIMEOUT_MULTISHOT	(1U << 6)
+#define IORING_TIMEOUT_IMMEDIATE_ARG	(1U << 7)
 #define IORING_TIMEOUT_CLOCK_MASK	(IORING_TIMEOUT_BOOTTIME | IORING_TIMEOUT_REALTIME)
 #define IORING_TIMEOUT_UPDATE_MASK	(IORING_TIMEOUT_UPDATE | IORING_LINK_TIMEOUT_UPDATE)
 /*
@@ -700,6 +720,9 @@ enum io_uring_register_op {
 	/* auxiliary zcrx configuration, see enum zcrx_ctrl_op */
 	IORING_REGISTER_ZCRX_CTRL		= 36,
 
+	/* register bpf filtering programs */
+	IORING_REGISTER_BPF_FILTER		= 37,
+
 	/* this goes last */
 	IORING_REGISTER_LAST,
 
@@ -805,6 +828,13 @@ struct io_uring_restriction {
 	__u32 resv2[3];
 };
 
+struct io_uring_task_restriction {
+	__u16 flags;
+	__u16 nr_res;
+	__u32 resv[3];
+	__DECLARE_FLEX_ARRAY(struct io_uring_restriction, restrictions);
+};
+
 struct io_uring_clock_register {
 	__u32	clockid;
 	__u32	__resv[3];
@@ -1027,92 +1057,6 @@ struct io_timespec {
 	__u64		tv_nsec;
 };
 
-/* Zero copy receive refill queue entry */
-struct io_uring_zcrx_rqe {
-	__u64	off;
-	__u32	len;
-	__u32	__pad;
-};
-
-struct io_uring_zcrx_cqe {
-	__u64	off;
-	__u64	__pad;
-};
-
-/* The bit from which area id is encoded into offsets */
-#define IORING_ZCRX_AREA_SHIFT	48
-#define IORING_ZCRX_AREA_MASK	(~(((__u64)1 << IORING_ZCRX_AREA_SHIFT) - 1))
-
-struct io_uring_zcrx_offsets {
-	__u32	head;
-	__u32	tail;
-	__u32	rqes;
-	__u32	__resv2;
-	__u64	__resv[2];
-};
-
-enum io_uring_zcrx_area_flags {
-	IORING_ZCRX_AREA_DMABUF		= 1,
-};
-
-struct io_uring_zcrx_area_reg {
-	__u64	addr;
-	__u64	len;
-	__u64	rq_area_token;
-	__u32	flags;
-	__u32	dmabuf_fd;
-	__u64	__resv2[2];
-};
-
-enum zcrx_reg_flags {
-	ZCRX_REG_IMPORT	= 1,
-};
-
-/*
- * Argument for IORING_REGISTER_ZCRX_IFQ
- */
-struct io_uring_zcrx_ifq_reg {
-	__u32	if_idx;
-	__u32	if_rxq;
-	__u32	rq_entries;
-	__u32	flags;
-
-	__u64	area_ptr; /* pointer to struct io_uring_zcrx_area_reg */
-	__u64	region_ptr; /* struct io_uring_region_desc * */
-
-	struct io_uring_zcrx_offsets offsets;
-	__u32	zcrx_id;
-	__u32	__resv2;
-	__u64	__resv[3];
-};
-
-enum zcrx_ctrl_op {
-	ZCRX_CTRL_FLUSH_RQ,
-	ZCRX_CTRL_EXPORT,
-
-	__ZCRX_CTRL_LAST,
-};
-
-struct zcrx_ctrl_flush_rq {
-	__u64		__resv[6];
-};
-
-struct zcrx_ctrl_export {
-	__u32		zcrx_fd;
-	__u32 		__resv1[11];
-};
-
-struct zcrx_ctrl {
-	__u32	zcrx_id;
-	__u32	op; /* see enum zcrx_ctrl_op */
-	__u64	__resv[2];
-
-	union {
-		struct zcrx_ctrl_export		zc_export;
-		struct zcrx_ctrl_flush_rq	zc_flush;
-	};
-};
-
 #ifdef __cplusplus
 }
 #endif