From patchwork Wed Oct 30 18:01:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 840042 Received: from mailout4.samsung.com (mailout4.samsung.com [203.254.224.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6955A1D0DC8 for ; Wed, 30 Oct 2024 18:10:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.34 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730311826; cv=none; b=KSsAbev90MRl/xIhfEFiYmo7Mr0WyeybU20qtouK55SSJoefC9TXG+g+t8fJRmm4oQKi6QTqXnPFmQQpVpVdtfNdzwZqaDXi8LIgiMKQxTEAk3uIU5jnXkgVSaovkZuz6A9ZqzjQ90B5jWQ8qmQEHOQJOlkInjOFRqqEhVujogQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730311826; c=relaxed/simple; bh=YXb7qnO3lu5vkwg1bZcdx5PFo4CJX/dp1xu0WKlJFxM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:MIME-Version: Content-Type:References; b=b/0W9JZRJ9rRTwTi7l53EHGbiJHL5bvGUMwFbaINhbaNyDvUEnpXIsIRRC0rbm0n3GytNB/dK5gCQPLUL6CuiaDEj5qg+HaiAO4b1t5c2L2NMTM7nwU6El2dSKayhY6gQGpHmuVqNytS0yjlMZ6JyPrdh7UUdad+MLWIYJ4qdlY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=PExMpOWM; arc=none smtp.client-ip=203.254.224.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="PExMpOWM" Received: from epcas5p4.samsung.com (unknown [182.195.41.42]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20241030181019epoutp04c9396db1ecdf4c261a6e58e87f9c7eb9~DTW6QnICX0272402724epoutp04U for ; Wed, 30 Oct 2024 18:10:19 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20241030181019epoutp04c9396db1ecdf4c261a6e58e87f9c7eb9~DTW6QnICX0272402724epoutp04U DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1730311819; bh=1mlKPMPKFIJBhlmH3o5xGb/9qatIJGaThyCajlxzjfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PExMpOWMWYHvT5UCN3TUMoRTmBIducyLf+QJvlxHgsTIwTOi2NjgE0ceO4GWa6lup j/tzE8ID/bYQD5vuEHQFFeflLHmseE8dNG/0++tEiQhFIKJIATcEGo6z7v9MMZPRid jvJTKBWLfGUWGgSBCEyOhHpufEvWjK95EDYfSDkE= Received: from epsnrtp2.localdomain (unknown [182.195.42.163]) by epcas5p1.samsung.com (KnoxPortal) with ESMTP id 20241030181018epcas5p147bd46c689df9a0893db55d290631dc6~DTW5uEoup1452514525epcas5p1G; Wed, 30 Oct 2024 18:10:18 +0000 (GMT) Received: from epsmgec5p1-new.samsung.com (unknown [182.195.38.179]) by epsnrtp2.localdomain (Postfix) with ESMTP id 4XdwCD695wz4x9Pt; Wed, 30 Oct 2024 18:10:16 +0000 (GMT) Received: from epcas5p4.samsung.com ( [182.195.41.42]) by epsmgec5p1-new.samsung.com (Symantec Messaging Gateway) with SMTP id B7.2C.18935.88672276; Thu, 31 Oct 2024 03:10:16 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20241030181016epcas5p3da284aa997e81d9855207584ab4bace3~DTW3ybWDS3027830278epcas5p3D; Wed, 30 Oct 2024 18:10:16 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20241030181016epsmtrp141d51540d875f3db54687f7596e4f268~DTW3xl6V00151201512epsmtrp1-; Wed, 30 Oct 2024 18:10:16 +0000 (GMT) X-AuditID: b6c32a50-cb1f8700000049f7-b5-6722768892c4 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id A2.C6.08227.88672276; Thu, 31 Oct 2024 03:10:16 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20241030181013epsmtip267fc962ebcf5efff16e5a37bbf763948~DTW1USSch0238402384epsmtip2q; Wed, 30 Oct 2024 18:10:13 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, hch@lst.de, kbusch@kernel.org, martin.petersen@oracle.com, asml.silence@gmail.com, brauner@kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz Cc: linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, gost.dev@samsung.com, vishak.g@samsung.com, anuj1072538@gmail.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH v6 07/10] block: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags Date: Wed, 30 Oct 2024 23:31:09 +0530 Message-Id: <20241030180112.4635-8-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241030180112.4635-1-joshi.k@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+NgFjrHJsWRmVeSWpSXmKPExsWy7bCmlm5HmVK6Qd8ZPYuPX3+zWDRN+Mts MWfVNkaL1Xf72SxeH/7EaHHzwE4mi5WrjzJZvGs9x2Ixe3ozk8XR/2/ZLCYdusZosfeWtsWe vSdZLOYve8pu0X19B5vF8uP/mCzO/z3OanF+1hx2ByGPnbPusntcPlvqsWlVJ5vH5iX1Hrtv NrB5fHx6i8Wjb8sqRo8zC46we3zeJOex6clbpgCuqGybjNTElNQihdS85PyUzLx0WyXv4Hjn eFMzA0NdQ0sLcyWFvMTcVFslF58AXbfMHKCflBTKEnNKgUIBicXFSvp2NkX5pSWpChn5xSW2 SqkFKTkFJgV6xYm5xaV56Xp5qSVWhgYGRqZAhQnZGffer2AqmChVce78ZbYGxtOiXYycHBIC JhInNlxj72Lk4hAS2MMoce7XbTaQhJDAJ0aJO490IBLfGCUart1j7WLkAOu4OCsaIr6XUaJx /n9WCOczo8T2ya3sIEVsApoSFyaXggwSEVjKKLHyOlgDs8ByJol366cwgiSEBUIk/rXcYgGx WQRUJW6evcIC0ssrYC5xeachxHXyEjMvfWcHsTkFLCQ+7LgJVs4rIChxcuYTMJsZqKZ562xm kPkSAg84JBZP38YM0ewi8frkZEYIW1ji1fEt7BC2lMTL/jYoO1viwaMHLBB2jcSOzX2sELa9 RMOfG2APMwP9sn6XPsQuPone30+YIOHAK9HRJgRRrShxb9JTqE5xiYczlkCDykOi/UYoJHS6 GSXmbv3NPIFRfhaSD2Yh+WAWwrIFjMyrGKVSC4pz01OTTQsMdfNSy+HRmpyfu4kRnLC1AnYw rt7wV+8QIxMH4yFGCQ5mJRFeyyDFdCHelMTKqtSi/Pii0pzU4kOMpsAgnsgsJZqcD8wZeSXx hiaWBiZmZmYmlsZmhkrivK9b56YICaQnlqRmp6YWpBbB9DFxcEo1MOVYyLyNP/xAzDjN1ksh 0lpsYRift51V9N3ySYW2Qge1tJct+HDvJVOxo9+niYcmLv24pDSfPXNiuWBI/cF5J/r1ejfy Ln84z6DTobHwqszOgsCL+pueumdppvdE/4/csHause0y0V18TMa8Xic+cljsfH1RY7rvzb1H +0vZNqxUO787iWlFvmvh2VMz/GMMZRctcbzpfnTSW86Jb/Y6H2GRNnA+EZ9smhIfHbDxl//T 49xcMw/0ye5VcDHZt1cpkOGwfYpW5fzdE5TrJljvlcxx7q+4bHS8MvO7+KVD1058cbLTfnPd s+9CZJv1G4WPS7JsXQ4k37yqmHl8zcXwgwWbt0cc83W/Ee5TzNIroMRSnJFoqMVcVJwIACit YqVhBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprMIsWRmVeSWpSXmKPExsWy7bCSvG5HmVK6wcv5whYfv/5msWia8JfZ Ys6qbYwWq+/2s1m8PvyJ0eLmgZ1MFitXH2WyeNd6jsVi9vRmJouj/9+yWUw6dI3RYu8tbYs9 e0+yWMxf9pTdovv6DjaL5cf/MVmc/3uc1eL8rDnsDkIeO2fdZfe4fLbUY9OqTjaPzUvqPXbf bGDz+Pj0FotH35ZVjB5nFhxh9/i8Sc5j05O3TAFcUVw2Kak5mWWpRfp2CVwZ996vYCqYKFVx 7vxltgbG06JdjBwcEgImEhdnRXcxcnEICexmlFiw5ixzFyMnUFxcovnaD3YIW1hi5b/n7BBF HxklGtf0M4M0swloSlyYXAoSFxFYzyhxdu8EFhCHWWAjk8SUjecYQbqFBYIk+s8dYQWxWQRU JW6evcIC0swrYC5xeachxAJ5iZmXvoMt4xSwkPiw4yYLiC0EVHJ94RmwOK+AoMTJmU/A4sxA 9c1bZzNPYBSYhSQ1C0lqASPTKkbJ1ILi3PTcYsMCo7zUcr3ixNzi0rx0veT83E2M4HjT0trB uGfVB71DjEwcjIcYJTiYlUR4LYMU04V4UxIrq1KL8uOLSnNSiw8xSnOwKInzfnvdmyIkkJ5Y kpqdmlqQWgSTZeLglGpgciqbE7Uycknay4OmrBIBqZnyD9/4RR3w23hzquTyEnHONi0dO5O3 HhLn6hpYbk6/29Ln/7B8pemKc4b7HC3Px8WGTcvlzqwqmvZR92qkOVugxuzi3JVbBVq0Zroy 2FWbb9cM+rbW04b5SuWCe592Wlopnuq/Juy29aarslydIMvO57a1pSaru/fwRcl7mMw+3/BM 7G7k7TCxJ5INO0+muK1f9P/ti7ZrP59XF71dae5RVrHzc+S9d1s8XrGU+C0Q2O+iYzkvIeXb Skmu2IXaKz7rip171X1E4c0F6xcxHivXnCxWqm2ZF9EnZ9ono3zRpKV32XFT6Q/T36r9XpH2 aP/2s8/WC276dHV209oNSizFGYmGWsxFxYkAFlkzZSYDAAA= X-CMS-MailID: 20241030181016epcas5p3da284aa997e81d9855207584ab4bace3 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20241030181016epcas5p3da284aa997e81d9855207584ab4bace3 References: <20241030180112.4635-1-joshi.k@samsung.com> From: Anuj Gupta 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 3de7555a7de7..79bd6b22e88d 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1004,18 +1004,13 @@ 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