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Fri, 23 Aug 2024 10:46:31 +0000 (GMT) Received: from epsmgmc1p1new.samsung.com (unknown [182.195.42.40]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240823104631epsmtrp2e2734043b18a050e4c040ee8a12f55a1~uVcBUNJg30122301223epsmtrp2R; Fri, 23 Aug 2024 10:46:31 +0000 (GMT) X-AuditID: b6c32a4a-14fff7000000260f-a1-66c869022573 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgmc1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id F3.6F.07567.78868C66; Fri, 23 Aug 2024 19:46:31 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240823104629epsmtip264a7069bed3357c5f3d97851eba59f08~uVb-Ui5Gi1453814538epsmtip2B; Fri, 23 Aug 2024 10:46:29 +0000 (GMT) From: Anuj Gupta To: axboe@kernel.dk, hch@lst.de, kbusch@kernel.org, martin.petersen@oracle.com, asml.silence@gmail.com, krisman@suse.de 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, Anuj Gupta , Kanchan Joshi Subject: [PATCH v3 07/10] block,nvme: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags Date: Fri, 23 Aug 2024 16:08:08 +0530 Message-Id: <20240823103811.2421-9-anuj20.g@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240823103811.2421-1-anuj20.g@samsung.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrNJsWRmVeSWpSXmKPExsWy7bCmli5T5ok0g5m9OhZNE/4yW8xZtY3R YvXdfjaLmwd2MlmsXH2UyeJd6zkWi6P/37JZTDp0jdFi+5mlzBZ7b2lbzF/2lN2i+/oONovl x/8xOfB67Jx1l93j8tlSj02rOtk8Ni+p99h9s4HN4+PTWywefVtWMXpsPl3t8XmTXABnVLZN RmpiSmqRQmpecn5KZl66rZJ3cLxzvKmZgaGuoaWFuZJCXmJuqq2Si0+ArltmDtDRSgpliTml QKGAxOJiJX07m6L80pJUhYz84hJbpdSClJwCkwK94sTc4tK8dL281BIrQwMDI1OgwoTsjHUT d7IVNElUnJ4i1MB4X7iLkYNDQsBEYtcH6y5GTg4hgd2MEqvmunQxcgHZnxgl9t7ZyQLhfGOU eDPpNzNIFUjDvLMb2CA69jJKrO3RgCj6zCgx5d4lJpAEm4C6xJHnrYwgtohApcTzXT/AJjEL 3GSUOLT3GdgkYYFIidfLWlhBbBYBVYk9WzrYQWxeAQuJpy2rWSC2yUvMvPQdLM4pYCnRNLuB BaJGUOLkzCdgNjNQTfPW2VDXreSQWL2UCcJ2kbjQ+pIVwhaWeHV8CzuELSXx+d1eNgg7XeLH 5adQ9QUSzcf2MULY9hKtp/qZQUHELKApsX6XPkRYVmLqqXVMEGv5JHp/P4Fq5ZXYMQ/GVpJo XzkHypaQ2HuuAcr2kFjTuAoaoj2MEp92n2ObwKgwC8k7s5C8Mwth9QJG5lWMkqkFxbnpqcWm BUZ5qeXwKE7Oz93ECE7FWl47GB8++KB3iJGJg/EQowQHs5IIb9K9o2lCvCmJlVWpRfnxRaU5 qcWHGE2B4T2RWUo0OR+YDfJK4g1NLA1MzMzMTCyNzQyVxHlft85NERJITyxJzU5NLUgtgulj 4uCUamASW/DnkNyxruUTb7jPnNGbdkXZRWhbxB5Zxwjf+a8eeb3Q443Uu8eXemeF9Z0Fcy40 lFVwF27t69y7XKehKYaxp+PsbdYanR9H3b5ctFDfLbK0uIPd/Y3ghV6DFVMefNvLfqFfSYLr jNP513lG/uxbJDKi5VL7hHfFR60IfyBg8byN9dkpu58Ce7QfaUf0VKjnGgsEp0obXU/dvD97 1vEQrayEGZfUYy1errptt+V+z0/uWZfj3lxw6Dp89nmQzo3WmD0b5k4Qlv+z+sFV58BzEisn rXtgvNB41trS564rTyaEleq+TC5kK51canJsMl93i/mXbslX/hoR9Y4/HA+6GIQV6YvN7ojn a9mxZa4SS3FGoqEWc1FxIgCKqavxTgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrCLMWRmVeSWpSXmKPExsWy7bCSvG57xok0g1vv9CyaJvxltpizahuj xeq7/WwWNw/sZLJYufook8W71nMsFkf/v2WzmHToGqPF9jNLmS323tK2mL/sKbtF9/UdbBbL j/9jcuD12DnrLrvH5bOlHptWdbJ5bF5S77H7ZgObx8ent1g8+rasYvTYfLra4/MmuQDOKC6b lNSczLLUIn27BK6MdRN3shU0SVScniLUwHhfuIuRk0NCwERi3tkNbCC2kMBuRolH69Mg4hIS p14uY4SwhSVW/nvO3sXIBVTzkVHi8tLDYAk2AXWJI89bGUESIgKNjBJbmr+wgCSYBe4zSizo DgGxhQXCJQ7MngLWwCKgKrFnSwc7iM0rYCHxtGU1C8QGeYmZl76DxTkFLCWaZjewQFxkIbFs +RlGiHpBiZMzn0DNl5do3jqbeQKjwCwkqVlIUgsYmVYxSqYWFOem5yYbFhjmpZbrFSfmFpfm pesl5+duYgRHjJbGDsZ78//pHWJk4mA8xCjBwawkwpt072iaEG9KYmVValF+fFFpTmrxIUZp DhYlcV7DGbNThATSE0tSs1NTC1KLYLJMHJxSDUy+ers2GR8W+tbO6X7f+b3D790tZYZrVqc8 P1i6psx+8c5N79dPMaxr189c5Dt/cUupxYJH6z7MnK9ndmzfhg3uCl3HwrinTTreyZTeGnKr de8Sl03FAf3xEovmNdw6+tbDmpmjL+2Fy7s0oeYU1fP2Kjsu2y49lmlzcYlv62blKdKry/iO XZzOVrI+7PHfVM+fJyffZi4IeXX4xJkrCfE8206nVv/oEwk486fneZydqKgQL8sDo+XfWrJy apy0/q3pqHwUqKv73Z6785A7G3vDSbWdWoxv5my5/ML08Jau1pNa75SaxTuaI8U9I3839fMa Md1qrSzYtmjvrhuz5gmdvlYY+Ij/RCyP8exdG52UWIozEg21mIuKEwHX/atpBwMAAA== X-CMS-MailID: 20240823104631epcas5p4f83b92081107fbefca78008ee319ff7e X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240823104631epcas5p4f83b92081107fbefca78008ee319ff7e References: <20240823103811.2421-1-anuj20.g@samsung.com> This patch introduces BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags which indicate how the hardware should check the integrity payload. 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 --- block/bio-integrity.c | 5 +++++ drivers/nvme/host/core.c | 12 +++--------- include/linux/bio-integrity.h | 6 +++++- 3 files changed, 13 insertions(+), 10 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index aaf67eb427ab..7fbf8c307a36 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -444,6 +444,11 @@ 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 33fa01c599ad..d4c366df8f12 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1002,19 +1002,13 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, return BLK_STS_NOTSUPP; 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 a1a9031a5985..c7c0121689e1 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, + BIP_CHECK_REFTAG = 1 << 7, + BIP_CHECK_APPTAG = 1 << 8, }; struct bio_integrity_payload { @@ -40,7 +43,8 @@ struct uio_meta { }; #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