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| author | Anuj Gupta <anuj20.g@samsung.com> | 2024-11-28 14:22:37 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-12-23 18:17:16 +0300 |
| commit | 2c0487d8b1f1351d48a13b77b254a2bb6de49eb3 (patch) | |
| tree | 499523958e8f5cd5e8803f89314be14f6012918a /include/linux | |
| parent | 59a7d12a7fb5ab24efa893e6980a00ffc090c777 (diff) | |
| download | linux-2c0487d8b1f1351d48a13b77b254a2bb6de49eb3.tar.xz | |
block: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags
This patch introduces BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags which
indicate how the hardware should check the integrity payload.
BIP_CHECK_GUARD/REFTAG are conversion of existing semantics, while
BIP_CHECK_APPTAG is a new flag. The driver can now just rely on block
layer flags, and doesn't need to know the integrity source. Submitter
of PI decides which tags to check. This would also give us a unified
interface for user and kernel generated integrity.
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20241128112240.8867-8-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bio-integrity.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/bio-integrity.h b/include/linux/bio-integrity.h index 58ff9988433a..fe2bfe122db2 100644 --- a/include/linux/bio-integrity.h +++ b/include/linux/bio-integrity.h @@ -11,6 +11,9 @@ enum bip_flags { BIP_DISK_NOCHECK = 1 << 3, /* disable disk integrity checking */ BIP_IP_CHECKSUM = 1 << 4, /* IP checksum */ BIP_COPY_USER = 1 << 5, /* Kernel bounce buffer in use */ + BIP_CHECK_GUARD = 1 << 6, /* guard check */ + BIP_CHECK_REFTAG = 1 << 7, /* reftag check */ + BIP_CHECK_APPTAG = 1 << 8, /* apptag check */ }; struct bio_integrity_payload { @@ -31,7 +34,8 @@ struct bio_integrity_payload { }; #define BIP_CLONE_FLAGS (BIP_MAPPED_INTEGRITY | BIP_CTRL_NOCHECK | \ - BIP_DISK_NOCHECK | BIP_IP_CHECKSUM) + BIP_DISK_NOCHECK | BIP_IP_CHECKSUM | \ + BIP_CHECK_GUARD | BIP_CHECK_REFTAG | BIP_CHECK_APPTAG) #ifdef CONFIG_BLK_DEV_INTEGRITY |