1 files changed, 107 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/frameio.h b/usr/src/uts/common/sys/frameio.h
new file mode 100644
index 0000000000..54e6dbeedf
--- /dev/null
+++ b/usr/src/uts/common/sys/frameio.h
@@ -0,0 +1,107 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
+ */
+
+#ifndef _SYS_FRAMEIO_H
+#define	_SYS_FRAMEIO_H
+
+/*
+ * Frame I/O definitions
+ */
+
+#include <sys/types.h>
+
+#ifdef _KERNEL
+/* Kernel only headers */
+#include <sys/stream.h>
+#endif	/* _KERNEL */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * An individual frame vector component. Collections of these are used to make
+ * ioctls.
+ */
+typedef struct framevec {
+	void	*fv_buf;	/* Buffer with data */
+	size_t	fv_buflen;	/* Size of the buffer */
+	size_t	fv_actlen;	/* Amount of buffer consumed, ignore on error */
+} framevec_t;
+
+/*
+ * The base unit used with frameio.
+ */
+typedef struct frameio {
+	uint_t	fio_version;	/* Should always be FRAMEIO_CURRENT_VERSION */
+	uint_t	fio_nvpf;	/* How many vectors make up one frame */
+	uint_t	fio_nvecs;	/* The total number of vectors */
+	framevec_t fio_vecs[];	/* C99 VLA */
+} frameio_t;
+
+
+#define	FRAMEIO_VERSION_ONE	1
+#define	FRAMEIO_CURRENT_VERSION	FRAMEIO_VERSION_ONE
+
+#define	FRAMEIO_NVECS_MAX	32
+
+/*
+ * Definitions for kernel modules to include as helpers. These are consolidation
+ * private.
+ */
+#ifdef _KERNEL
+
+/*
+ * 32-bit versions for 64-bit kernels
+ */
+typedef struct framevec32 {
+	caddr32_t fv_buf;
+	size32_t fv_buflen;
+	size32_t fv_actlen;
+} framevec32_t;
+
+typedef struct frameio32 {
+	uint_t fio_version;
+	uint_t fio_vecspframe;
+	uint_t fio_nvecs;
+	framevec32_t fio_vecs[];
+} frameio32_t;
+
+/*
+ * Describe the different ways that vectors should map to frames.
+ */
+typedef enum frameio_write_mblk_map {
+	MAP_BLK_FRAME
+} frameio_write_mblk_map_t;
+
+int frameio_init(void);
+void frameio_fini(void);
+frameio_t *frameio_alloc(int);
+void frameio_free(frameio_t *);
+int frameio_hdr_copyin(frameio_t *, int, const void *, uint_t);
+int frameio_mblk_chain_read(frameio_t *, mblk_t **, int *, int);
+int frameio_mblk_chain_write(frameio_t *, frameio_write_mblk_map_t, mblk_t *,
+    int *, int);
+int frameio_hdr_copyout(frameio_t *, int, void *, uint_t);
+size_t frameio_frame_length(frameio_t *, framevec_t *);
+void frameio_mark_consumed(frameio_t *, int);
+
+#endif /* _KERNEL */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_FRAMEIO_H */