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Mon, 25 Nov 2024 07:15:05 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20241125071505epsmtrp227628f991ca4fb5f4a3720189936742f~LJMPYs44Y0299802998epsmtrp2x; Mon, 25 Nov 2024 07:15:05 +0000 (GMT) X-AuditID: b6c32a50-7ebff7000000721c-0b-67443092d7ea Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id FF.45.19220.9F324476; Mon, 25 Nov 2024 16:15:05 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20241125071502epsmtip199c59c7e4832cf9b10800d051cb2fdc4~LJMM6vyav0365203652epsmtip1o; Mon, 25 Nov 2024 07:15:02 +0000 (GMT) From: Anuj Gupta To: axboe@kernel.dk, hch@lst.de, kbusch@kernel.org, martin.petersen@oracle.com, asml.silence@gmail.com, anuj1072538@gmail.com, brauner@kernel.org, jack@suse.cz, viro@zeniv.linux.org.uk Cc: io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, linux-scsi@vger.kernel.org, vishak.g@samsung.com, linux-fsdevel@vger.kernel.org, Anuj Gupta , Kanchan Joshi Subject: [PATCH v10 07/10] block: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags Date: Mon, 25 Nov 2024 12:36:30 +0530 Message-Id: <20241125070633.8042-8-anuj20.g@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241125070633.8042-1-anuj20.g@samsung.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPJsWRmVeSWpSXmKPExsWy7bCmlu4kA5d0g+lTFS0+fv3NYtE04S+z xZxV2xgtVt/tZ7N4ffgTo8XNAzuZLFauPspk8a71HIvF7OnNTBZH/79ls5h06Bqjxd5b2hZ7 9p5ksZi/7Cm7Rff1HWwWy4//Y7I4//c4q8X5WXPYHYQ8ds66y+5x+Wypx6ZVnWwem5fUe+y+ 2cDm8fHpLRaPvi2rGD3OLDjC7vF5k5zHpidvmQK4orJtMlITU1KLFFLzkvNTMvPSbZW8g+Od 403NDAx1DS0tzJUU8hJzU22VXHwCdN0yc4B+UlIoS8wpBQoFJBYXK+nb2RTll5akKmTkF5fY KqUWpOQUmBToFSfmFpfmpevlpZZYGRoYGJkCFSZkZ/QfvclY8Eyy4vvkvSwNjMtFuxg5OSQE TCRONfxn7GLk4hAS2MMo8fnSUmaQhJDAJ0aJDbflIRLfGCXmHF/ABtOx9f5MqI69jBJTVm5k gnA+M0os2jGLHaSKTUBd4sjzVrAqEZC5vQtPs4A4zAITmCTaJ84BqxIWCJVYdesrkM3BwSKg KrFwnzdImFfAQuL61n3sEOvkJWZe+g5mcwpYSrxtO8ACUSMocXLmEzCbGaimeetsZpD5EgI3 OCQOH1rDAtHsIvHqzCyou4UlXh3fAjVUSuLzu71Q8XSJH5efMkHYBRLNx/YxQtj2Eq2n+plB bmMW0JRYv0sfIiwrMfXUOiaIvXwSvb+fQLXySuyYB2MrSbSvnANlS0jsPdcAZXtIzLjfCA26 HkaJvdPfME1gVJiF5J9ZSP6ZhbB6ASPzKkap1ILi3PTUZNMCQ9281HJ4PCfn525iBKd0rYAd jKs3/NU7xMjEwXiIUYKDWUmEl0/cOV2INyWxsiq1KD++qDQntfgQoykwwCcyS4km5wOzSl5J vKGJpYGJmZmZiaWxmaGSOO/r1rkpQgLpiSWp2ampBalFMH1MHJxSDUzxHW42YXWrWLhLOm7X pt3veb97tbJb2aQVmxcHv9u8rLSZyX9ZMMMr3uKKukD+3wfU5S0Oc1002FcZ8rBb0+Px99kc yl+zLkicNt7ifOHEtE0vUs/nZCvc4DldGHuw/mbw3b8qCXuWP7nM9vVDphLHHd8JqlY/y/c0 C6zl5XAsDr/Cwq2gtOpRa+ny46EOW5636O+QuDh/Rv/3k6seSz43nSHW0lanw7dP5Nrt+w6N /4Pj3Krtz2pmcjVk2J/VrvnsvV1+73pvX0adaXNX9vkK6fTn7zPO2C4W/JI1boF7+6R9q/Z9 ZRKXDb002zBxLvtPGZ5Jm43tWHtN7gkb85b8c4jKELh963JtwWndHiWW4oxEQy3mouJEAE5M B4hyBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprEIsWRmVeSWpSXmKPExsWy7bCSnO5PZZd0g1ebWC0+fv3NYtE04S+z xZxV2xgtVt/tZ7N4ffgTo8XNAzuZLFauPspk8a71HIvF7OnNTBZH/79ls5h06Bqjxd5b2hZ7 9p5ksZi/7Cm7Rff1HWwWy4//Y7I4//c4q8X5WXPYHYQ8ds66y+5x+Wypx6ZVnWwem5fUe+y+ 2cDm8fHpLRaPvi2rGD3OLDjC7vF5k5zHpidvmQK4orhsUlJzMstSi/TtErgy+o/eZCx4Jlnx ffJelgbG5aJdjJwcEgImElvvz2QEsYUEdjNKrHmvABGXkDj1chkjhC0ssfLfc3aImo+MEtfv 5IPYbALqEkeet4LViAicYJSYP9Gti5GLg1lgBpNEz68VbCAJYYFgiYeT/7J2MXJwsAioSizc 5w0S5hWwkLi+dR87xHx5iZmXvoPZnAKWEm/bDrBA7LKQmNW5khWiXlDi5MwnYHFmoPrmrbOZ JzAKzEKSmoUktYCRaRWjZGpBcW56brFhgVFearlecWJucWleul5yfu4mRnC0aWntYNyz6oPe IUYmDsZDjBIczEoivHzizulCvCmJlVWpRfnxRaU5qcWHGKU5WJTEeb+97k0REkhPLEnNTk0t SC2CyTJxcEo1MEkv0lxdVastm8chtmdVE6fU9+vGuVsi1s185C2vfdg0fpe5yl7uSQ7Mi88F XJvLk9F3csLnr1vnid4/mGa4WlPk5baYL8F7/+uuFnRN9fMo8+0W3Fbjb+pgI1UXk/urs41B X/SQ+5cDNya1Nn46Hjv//gMdhZmKckujOhx2Ofvw+PXM+u4ZpeslvWjyw12H3jhM/hh8hu3c IUFpiWLxwuAmk/m/HzS5xrT2T7/8562Wje7Kt1K+DSfPPOQ5eHKWpcujvDsLvpv37pknkzH7 7d6URWmxbH7Xrot2+LySDop3lrttH5Tl/eQq48UM45XnrebOn/q5+qRx9Ef/q5+n/Lxb9uKG NMujcDV7ea/FUkosxRmJhlrMRcWJANX3MgolAwAA X-CMS-MailID: 20241125071505epcas5p34469830c74b82603c57cb4122d0850f7 X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20241125071505epcas5p34469830c74b82603c57cb4122d0850f7 References: <20241125070633.8042-1-anuj20.g@samsung.com> 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 Signed-off-by: Kanchan Joshi Reviewed-by: Christoph Hellwig Reviewed-by: Keith Busch --- block/bio-integrity.c | 5 +++++ drivers/nvme/host/core.c | 11 +++-------- include/linux/bio-integrity.h | 6 +++++- 3 files changed, 13 insertions(+), 9 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index f56d01cec689..3bee43b87001 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -434,6 +434,11 @@ bool bio_integrity_prep(struct bio *bio) if (bi->csum_type == BLK_INTEGRITY_CSUM_IP) bip->bip_flags |= BIP_IP_CHECKSUM; + /* describe what tags to check in payload */ + if (bi->csum_type) + bip->bip_flags |= BIP_CHECK_GUARD; + if (bi->flags & BLK_INTEGRITY_REF_TAG) + bip->bip_flags |= BIP_CHECK_REFTAG; if (bio_integrity_add_page(bio, virt_to_page(buf), len, offset_in_page(buf)) < len) { printk(KERN_ERR "could not attach integrity payload\n"); diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 40e7be3b0339..e4e3653c27fb 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1017,18 +1017,13 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, control |= NVME_RW_PRINFO_PRACT; } - switch (ns->head->pi_type) { - case NVME_NS_DPS_PI_TYPE3: + if (bio_integrity_flagged(req->bio, BIP_CHECK_GUARD)) control |= NVME_RW_PRINFO_PRCHK_GUARD; - break; - case NVME_NS_DPS_PI_TYPE1: - case NVME_NS_DPS_PI_TYPE2: - control |= NVME_RW_PRINFO_PRCHK_GUARD | - NVME_RW_PRINFO_PRCHK_REF; + if (bio_integrity_flagged(req->bio, BIP_CHECK_REFTAG)) { + control |= NVME_RW_PRINFO_PRCHK_REF; if (op == nvme_cmd_zone_append) control |= NVME_RW_APPEND_PIREMAP; nvme_set_ref_tag(ns, cmnd, req); - break; } } 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