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From: Kanchan Joshi <[email protected]>
To: [email protected], [email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected], [email protected]
Cc: [email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected],
	Anuj Gupta <[email protected]>,
	Kanchan Joshi <[email protected]>
Subject: [PATCH v6 04/10] fs, iov_iter: define meta io descriptor
Date: Wed, 30 Oct 2024 23:31:06 +0530	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

From: Anuj Gupta <[email protected]>

Add flags to describe checks for integrity meta buffer. Also, introduce
a  new 'uio_meta' structure that upper layer can use to pass the
meta/integrity information.

Signed-off-by: Kanchan Joshi <[email protected]>
Signed-off-by: Anuj Gupta <[email protected]>
---
 include/linux/uio.h     | 9 +++++++++
 include/uapi/linux/fs.h | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/linux/uio.h b/include/linux/uio.h
index 853f9de5aa05..8ada84e85447 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -82,6 +82,15 @@ struct iov_iter {
 	};
 };
 
+typedef __u16 uio_meta_flags_t;
+
+struct uio_meta {
+	uio_meta_flags_t	flags;
+	u16			app_tag;
+	u64			seed;
+	struct iov_iter		iter;
+};
+
 static inline const struct iovec *iter_iov(const struct iov_iter *iter)
 {
 	if (iter->iter_type == ITER_UBUF)
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 753971770733..9070ef19f0a3 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -40,6 +40,15 @@
 #define BLOCK_SIZE_BITS 10
 #define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
 
+/* flags for integrity meta */
+#define IO_INTEGRITY_CHK_GUARD		(1U << 0) /* enforce guard check */
+#define IO_INTEGRITY_CHK_REFTAG		(1U << 1) /* enforce ref check */
+#define IO_INTEGRITY_CHK_APPTAG		(1U << 2) /* enforce app check */
+
+#define IO_INTEGRITY_VALID_FLAGS (IO_INTEGRITY_CHK_GUARD | \
+				  IO_INTEGRITY_CHK_REFTAG | \
+				  IO_INTEGRITY_CHK_APPTAG)
+
 #define SEEK_SET	0	/* seek relative to beginning of file */
 #define SEEK_CUR	1	/* seek relative to current file position */
 #define SEEK_END	2	/* seek relative to end of file */
-- 
2.25.1


  parent reply	other threads:[~2024-10-30 18:10 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20241030180957epcas5p3312b0a582e8562f8c2169e64d41592b2@epcas5p3.samsung.com>
2024-10-30 18:01 ` [PATCH v6 00/10] Read/Write with metadata/integrity Kanchan Joshi
     [not found]   ` <CGME20241030181000epcas5p2bfb47a79f1e796116135f646c6f0ccc7@epcas5p2.samsung.com>
2024-10-30 18:01     ` [PATCH v6 01/10] block: define set of integrity flags to be inherited by cloned bip Kanchan Joshi
     [not found]   ` <CGME20241030181002epcas5p2b44e244bcd0c49d0a379f0f4fe07dc3f@epcas5p2.samsung.com>
2024-10-30 18:01     ` [PATCH v6 02/10] block: copy back bounce buffer to user-space correctly in case of split Kanchan Joshi
     [not found]   ` <CGME20241030181005epcas5p43b40adb5af1029c9ffaecde317bf1c5d@epcas5p4.samsung.com>
2024-10-30 18:01     ` [PATCH v6 03/10] block: modify bio_integrity_map_user to accept iov_iter as argument Kanchan Joshi
     [not found]   ` <CGME20241030181008epcas5p333603fdbf3afb60947d3fc51138d11bf@epcas5p3.samsung.com>
2024-10-30 18:01     ` Kanchan Joshi [this message]
     [not found]   ` <CGME20241030181010epcas5p2c399ecea97ed6d0e5fb228b5d15c2089@epcas5p2.samsung.com>
2024-10-30 18:01     ` [PATCH v6 05/10] fs: introduce IOCB_HAS_METADATA for metadata Kanchan Joshi
     [not found]   ` <CGME20241030181013epcas5p2762403c83e29c81ec34b2a7755154245@epcas5p2.samsung.com>
2024-10-30 18:01     ` [PATCH v6 06/10] io_uring/rw: add support to send metadata along with read/write Kanchan Joshi
2024-10-30 21:09       ` Keith Busch
     [not found]   ` <CGME20241030181016epcas5p3da284aa997e81d9855207584ab4bace3@epcas5p3.samsung.com>
2024-10-30 18:01     ` [PATCH v6 07/10] block: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags Kanchan Joshi
     [not found]   ` <CGME20241030181019epcas5p135961d721959d80f1f60bd4790ed52cf@epcas5p1.samsung.com>
2024-10-30 18:01     ` [PATCH v6 08/10] nvme: add support for passing on the application tag Kanchan Joshi
     [not found]   ` <CGME20241030181021epcas5p1c61b7980358f3120014b4f99390d1595@epcas5p1.samsung.com>
2024-10-30 18:01     ` [PATCH v6 09/10] scsi: add support for user-meta interface Kanchan Joshi
     [not found]   ` <CGME20241030181024epcas5p3964697a08159f8593a6f94764f77a7f3@epcas5p3.samsung.com>
2024-10-30 18:01     ` [PATCH v6 10/10] block: add support to pass user meta buffer Kanchan Joshi

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