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Fri, 26 Apr 2024 03:46:52 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20240425184651epcas5p3404f2390d6cf05148eb96e1af093e7bc~JmlJoQfkR0824808248epcas5p3f; Thu, 25 Apr 2024 18:46:51 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240425184651epsmtrp245499ce6745e46d2ab1d88b3388c1748~JmlJnUZsw0238902389epsmtrp2b; Thu, 25 Apr 2024 18:46:51 +0000 (GMT) X-AuditID: b6c32a50-ccbff70000004be7-c0-662aa51c7ff8 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id 8C.C2.19234.B15AA266; Fri, 26 Apr 2024 03:46:51 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184650epsmtip143df1e6819cfa539ae1ae7996e97cad2~JmlH25CSx3053530535epsmtip1s; Thu, 25 Apr 2024 18:46:49 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 01/10] block: set bip_vcnt correctly Date: Fri, 26 Apr 2024 00:09:34 +0530 Message-Id: <20240425183943.6319-2-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA02Sf0wTZxjH896d1ytbyVnYeNMswk6XIBvQjlKuC4hGQi7OLYDbPywGanvS hvZa+8PhTEaDAylkIMgQCugwOkMJ6JDxowLREgaIdJNFl7KAWRQkEN0Kg+lmYS3HNv/7PG+e 7/Pj+z4EKr6GSwgdZ2XNnEpP4WFYz/DuuPg3LscdlXa7IuiSMwGUbnb1ALp9phqnl4aXAb3Y 0IHTvpv9CN3WPoLQT0u9GD2y8QSnaz33AT04/TZ94Zs5AX1ldB3ZK2LuN9RgTL9zRsD8NGlj ulwOnLl+qZi54bPjjH9uGmOqul2AWenakSXMLUzVsioNa45hObVRo+MK0qj3D+Xtz0tWSGXx MiWdQsVwKgObRmUczIrP1OmDU1Mxx1V6W/ApS2WxUIl7Us1Gm5WN0Rot1jSKNWn0JrkpwaIy WGxcQQLHWt+TSaXvJgcT8wu1v3tLcNM9omjuXtU2O2gWVACCgKQc1tSdrABhhJgcAPCccw3h g2UAh8bqsQog5IPTE+IQhwS3HXPb+KR+AJ/99QXOBysAdkw+2CyLk7vhj2dtIUEkqYGLnUsg xCg5FxQ4kBBHBAutzrs33zHyLXih1L8pFZEp0G/X8r2iYePUn4IQC0kanr07sckicjscb3yE 8SWj4anvmtDQCJBsI+BC1x2UF2fAJ3U/YzxHwMXRbgHPErjydBDnWQ2nGr0Iz1b4cODWFqfD 0tvVaGgeNLjKVXci3yscfvn3I4Q3TgTLy7YseRPO1oYsCXEU/LXh0hYzMDDaB3h3KgFsu/sc OwOinS+t4HxpBef/3b4GqAtIWJPFUMCqk02yeI799L9vVRsNXWDzdOOy+kD7tUCCByAE8ABI oFSkyOePPSoWaVQnPmPNxjyzTc9aPCA56HENKnlNbQzePmfNk8mVUrlCoZArkxQyKkq0VNqi EZMFKitbyLIm1vyvDiGEEjviPO8LO3Ijx1aUI0n/oTn7cacQvDjxsEW4b/oAE5tfvS9Ruye/ 5M5Kyq69r1csmJub6IiOqnHD4WOGBl1x7exhx+rEufFCymOZ1x1xPLj1IinsncXp1Y+P49Hf e/u+fX7dlU21MmjrWEm5ryxct3Ok6cOhSUWmveqUW1lPEqbAKt5e3Pvs8R872Yx05VCeuzJQ qS0nq9D13Lrt7s8XsJq0Ywd3fbIxP3N5jduoS9oQtn4k7VFMGZeHoz5wn55dt+9PfeWiv7fh Ynanr+1V746bZb+UKlMPrFl/Q7jeNHI0MfeqOjyTxL4SzxaNRXpTByaN2Ih6MLbTfb4+vuVk IIfCLFqVLA41W1T/AKCVWG9DBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrILMWRmVeSWpSXmKPExsWy7bCSnK70Uq00gxe/jC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mj6ca2IruMpR8fRqH2sD4xz2LkZODgkBE4lTnU9Zuxi5OIQEtjNK9Pf9 ZIZIiEs0X/sBVSQssfLfc3aIoo+MEluvfALq4OBgE9CUuDC5FKRGRCBLYm//FbAaZoG3jBLz /+4BGyQMtOHrs12MIDaLgKrE/NaP7CC9vALmEh8bMiDmy0vMvPQdbBengIXE5IunwWwhoJKp axaBtfIKCEqcnPmEBcRmBqpv3jqbeQKjwCwkqVlIUgsYmVYxiqYWFOem5yYXGOoVJ+YWl+al 6yXn525iBMeKVtAOxmXr/+odYmTiYDzEKMHBrCTCe/OjRpoQb0piZVVqUX58UWlOavEhRmkO FiVxXuWczhQhgfTEktTs1NSC1CKYLBMHp1QDUybXua97Nu+e6vNFx4U3k2/aiu3mN2789Zp7 UIz75fQb94xOV20zOMLwnLdtuULRCoGy1bf3vjXKSqi78sF6Na/6lBtXkm6tiauO4xRcrubH P/uhhPECE9fGH0lrXVcZ/klfff3Ig/L4oB/rxMWY/daq6dTyP8ir0Ep5vXnL/5k2G//f4g6u FjFdO+MEs2vYnIrNuuxSy/iPRkzOKZwYLD47q+9p2vq1toxz42tnLvi/93JQ5PJZGzYpRwf9 iLfZGH95+Snzgjp3UeOkJYpsWqwLTzMKGa+ZE/zadNPc4naHw/sLchcVf1ooaDCncYX1p+JF ocIN3wsPeP53yPrsfLLSeNbD49uj9momhbz49V2JpTgj0VCLuag4EQD+boJzBAMAAA== X-CMS-MailID: 20240425184651epcas5p3404f2390d6cf05148eb96e1af093e7bc X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184651epcas5p3404f2390d6cf05148eb96e1af093e7bc References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta Set the bip_vcnt correctly in bio_integrity_init_user and bio_integrity_copy_user. If the bio gets split at a later point, this value is required to set the right bip_vcnt in the cloned bio. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi Reviewed-by: Christoph Hellwig --- block/bio-integrity.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index 2e3e8e04961e..e3390424e6b5 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -254,6 +254,7 @@ static int bio_integrity_copy_user(struct bio *bio, struct bio_vec *bvec, bip->bip_flags |= BIP_INTEGRITY_USER | BIP_COPY_USER; bip->bip_iter.bi_sector = seed; + bip->bip_vcnt = nr_vecs; return 0; free_bip: bio_integrity_free(bio); @@ -275,6 +276,7 @@ static int bio_integrity_init_user(struct bio *bio, struct bio_vec *bvec, bip->bip_flags |= BIP_INTEGRITY_USER; bip->bip_iter.bi_sector = seed; bip->bip_iter.bi_size = len; + bip->bip_vcnt = nr_vecs; return 0; } From patchwork Thu Apr 25 18:39:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 13643648 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 4AEFA14E2CC for ; 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Fri, 26 Apr 2024 03:46:53 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184652epsmtip15304991c802986bd2c08f53595bdaacf~JmlJv392M3082730827epsmtip1Y; Thu, 25 Apr 2024 18:46:51 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 02/10] block: copy bip_max_vcnt vecs instead of bip_vcnt during clone Date: Fri, 26 Apr 2024 00:09:35 +0530 Message-Id: <20240425183943.6319-3-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrHJsWRmVeSWpSXmKPExsWy7bCmhq7cUq00g1k3BC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKOy bTJSE1NSixRS85LzUzLz0m2VvIPjneNNzQwMdQ0tLcyVFPISc1NtlVx8AnTdMnOArlZSKEvM KQUKBSQWFyvp29kU5ZeWpCpk5BeX2CqlFqTkFJgU6BUn5haX5qXr5aWWWBkaGBiZAhUmZGfs vPaCteA+R8WxZzdZGhgXs3cxcnJICJhIHH1+ma2LkYtDSGA3o8SyVX1QzidGiSk7b0E53xgl NrcdY4RpubV+IytEYi+jxKFDq8ASQgKfGSXO/+foYuTgYBPQlLgwuRQkLCKQIvFq3WuwEmaB p4wSPzqZQGxhgXCJU/ufMIKUswioSlz6bQQS5hUwl5i2spcVYpW8xMxL38Eu5RSwkJh88TQ7 RI2gxMmZT1ggRspLNG+dzQxyjoTAWg6JX3Ofs0E0u0hs7ZsG9aawxKvjW6BsKYmX/W1QdrLE pZnnmCDsEonHew5C2fYSraf6mUFuYwZ6Zf0ufYhdfBK9v58wgYQlBHglOtqEIKoVJe5Negp1 srjEwxlLWCFKPCQOb6iDhE03o8TBT9kTGOVnIXlgFpIHZiHsWsDIvIpRMrWgODc9tdi0wDgv tRweqcn5uZsYwQlXy3sH46MHH/QOMTJxMB5ilOBgVhLhvflRI02INyWxsiq1KD++qDQntfgQ oykwgCcyS4km5wNTfl5JvKGJpYGJmZmZiaWxmaGSOO/r1rkpQgLpiSWp2ampBalFMH1MHJxS DUwnok1m2C/6InaQza+hSHte4bZfnX7Pjwv9mhnIVxH0lUFha5LDDs3/87gZYhZMnWZ9/Wzi C83LOpO3TvPm973uVi5d3Whr96JSMVrX7FuNmGN9wOYP3G2T2z0nFhheWfdo54t+hVjLluXV SVeKr2/6eOX8v1cyu/8rbFO3mCRr9JMhPdu/vshuXlfX3psXnyqw692aM0HPWVrg0gXtaScO +2twS29oERNnCo17t/NR1CHJC0pfpxwW8zHQXMHc9JsnR6Ij74L51S3tJ+ez7QuRt7PP/tZz JeugQUL5o1nF5apvs3qMY2bGvT0stDn9ru6KWccP7+Fl6Gi0K3A+6lGYxlyoGVNyfJ77iZ27 WZVYijMSDbWYi4oTAUZyiMNBBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrKLMWRmVeSWpSXmKPExsWy7bCSnK7sUq00g03NZhZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFFc NimpOZllqUX6dglcGTuvvWAtuM9RcezZTZYGxsXsXYycHBICJhK31m9k7WLk4hAS2M0oMXPS BGaIhLhE87UfUEXCEiv/PWeHKPrIKHF43mSWLkYODjYBTYkLk0tBakQEsiT29l8Bq2EWeMso Mf/vHrBBwgKhEn+mv2AGqWcRUJW49NsIJMwrYC4xbWUvK8R8eYmZl76D7eIUsJCYfPE0mC0E VDN1zSJGiHpBiZMzn7CA2MxA9c1bZzNPYBSYhSQ1C0lqASPTKkbJ1ILi3PTcZMMCw7zUcr3i xNzi0rx0veT83E2M4JjR0tjBeG/+P71DjEwcjIcYJTiYlUR4b37USBPiTUmsrEotyo8vKs1J LT7EKM3BoiTOazhjdoqQQHpiSWp2ampBahFMlomDU6qB6cipWw3Fkw+dXl0YKXFwZ+fyhIDT m7Y/O//9g5+4uNbFxddDJ8clLyh+Vt4x36vRVfmo/WXzBUVSbeeZ7/K67/Ce81HnopRDaMxt lozC+isvl8vPyXhawL10YsH85b6HSjw+vHjVNFM12DPHR+Nc66atGdsUmAKTxX8+j5p66Okf 0Ul/RaIr2D+bsB79wb6sqpzf1T+F713Lz3s2KxsFrgTysvoe8/fr7b1WfSzNfHFf9bvnnNKX b1icuch3J/lK1eHr6cL976J9583TvDD357omcb7FTRKiu/7snXTd5JRTJtf81Uldmbs1/m/K 9TG0X6PmWWW4fErwtszZgXtvCYX46O9TXeA7+1/apefdfkosxRmJhlrMRcWJAG8TR5QIAwAA X-CMS-MailID: 20240425184653epcas5p28de1473090e0141ae74f8b0a6eb921a7 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184653epcas5p28de1473090e0141ae74f8b0a6eb921a7 References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta If bio_integrity_copy_user is used to process the meta buffer, bip_max_vcnt is one greater than bip_vcnt. In this case bip_max_vcnt vecs needs to be copied to cloned bip. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index e3390424e6b5..c1955f01412e 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -622,12 +622,12 @@ int bio_integrity_clone(struct bio *bio, struct bio *bio_src, BUG_ON(bip_src == NULL); - bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_vcnt); + bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_max_vcnt); if (IS_ERR(bip)) return PTR_ERR(bip); memcpy(bip->bip_vec, bip_src->bip_vec, - bip_src->bip_vcnt * sizeof(struct bio_vec)); + bip_src->bip_max_vcnt * sizeof(struct bio_vec)); bip->bip_vcnt = bip_src->bip_vcnt; bip->bip_iter = bip_src->bip_iter; From patchwork Thu Apr 25 18:39:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 13643649 Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) (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 786EC14C594 for ; 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Fri, 26 Apr 2024 03:46:55 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184654epsmtip16e320a8c4939754f33ddec3ede5df744~JmlLpX8mS3266832668epsmtip13; Thu, 25 Apr 2024 18:46:53 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 03/10] block: copy result back to user meta buffer correctly in case of split Date: Fri, 26 Apr 2024 00:09:36 +0530 Message-Id: <20240425183943.6319-4-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrIJsWRmVeSWpSXmKPExsWy7bCmuq7iUq00g5PdzBZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFHZ NhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJuam2Si4+AbpumTlAVysplCXm lAKFAhKLi5X07WyK8ktLUhUy8otLbJVSC1JyCkwK9IoTc4tL89L18lJLrAwNDIxMgQoTsjM+ ru1nL1jCVfFx5nfGBsYbHF2MnBwSAiYSh9Y8Z+9i5OIQEtjNKHH2w0VWCOcTo8SKI6sRnNsf d7HCtDS33oJq2ckosebMW0YI5zOjxLuOuSxdjBwcbAKaEhcml4I0iAikSLxa95oRxGYWeMoo 8aOTCaREWCBeonFnJEiYRUBV4suubSwgNq+AucSW5jZGiF3yEjMvfWcHsTkFLCQmXzzNDlEj KHFy5hMWiJHyEs1bZzODnCAhsJJDYun5I1DNLhK7Wn+zQdjCEq+Ob2GHsKUkXva3QdnJEpdm nmOCsEskHu85CGXbS7Se6mcGuZMZ6JX1u/QhdvFJ9P5+Ana+hACvREebEES1osS9SU+hwSMu 8XDGEijbQ+Lhoi42SOh0M0q8/rWQeQKj/CwkL8xC8sIshG0LGJlXMUqmFhTnpqcmmxYY5qWW w+M1OT93EyM47Wq57GC8Mf+f3iFGJg7GQ4wSHMxKIrw3P2qkCfGmJFZWpRblxxeV5qQWH2I0 BYbxRGYp0eR8YOLPK4k3NLE0MDEzMzOxNDYzVBLnfd06N0VIID2xJDU7NbUgtQimj4mDU6qB qSxx+17JVfYqKacvak+N3qhXe7uoYXur+S+ReeF15VkvHE89bxC5cXBOwowts7n+HFuUUavP f/LKO5tQA3UZrtbEGQGH1/280XohIDX+p7bsXgOtzUduyR28zNvO2Lohew6/2Yoj/zts/OtE mp+pZJw3SHi3dds8JoEntbePW7d+WPC57n/w0W3Z6gU3oiafTqjiUYkr2XPz1jTffx3mXks6 9/NEmx8W7Go/nT4lZX/o2udnz4lxam14cpYxg3W53mtxFgWx5bZvuOzXr7u3o0d2zS1mntSZ ldr8/f5z5lw55XnZZiqL0f3TEvdauXr9mBje3FLbwzzr2Ytniez8C66UHe05mp16I6Wl9Pfs XUosxRmJhlrMRcWJAPe/hhFEBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrELMWRmVeSWpSXmKPExsWy7bCSnK78Uq00g+uvzC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mj6u7WcvWMJV8XHmd8YGxhscXYycHBICJhLNrbfYuxi5OIQEtjNKXDp+ mw0iIS7RfO0HO4QtLLHy33Oooo+MEl9nTmTuYuTgYBPQlLgwuRSkRkQgS2Jv/xWwGmaBt4wS 8//uYQZJCAvESpyd38YKYrMIqEp82bWNBcTmFTCX2NLcxgixQF5i5qXvYMs4BSwkJl88DWYL AdVMXbOIEaJeUOLkzCdgvcxA9c1bZzNPYBSYhSQ1C0lqASPTKkbR1ILi3PTc5AJDveLE3OLS vHS95PzcTYzgaNEK2sG4bP1fvUOMTByMhxglOJiVRHhvftRIE+JNSaysSi3Kjy8qzUktPsQo zcGiJM6rnNOZIiSQnliSmp2aWpBaBJNl4uCUamDaesnwkYb5UYbCHS39+VUbp17emD11nVmJ yZuHbaJO9ikSaYvvN/VGtuy1j6t+c6rIIMRqmeDci1EGHrYd5Vt7Z79xiTeb5RZ5IaFxd2+5 5EK+4PPzZTZMd9hdcW3yGysv/9eXbsbWx3HOmr987/tknVTNJ3v/ip/829szfb3gtd9nTa12 Lfmc6XrzkUyZz8cAUZu3Hg6FM6ctuyTRs3dxktDn5bNZIg67HP198c3e7kc/31nff7TX1Wma /MVTxx/fyVHmVN9srjk7qTn/ZrDIosmeXdVVVqFKdqKeEmEsfgFLVFLY8h2u9Jioxv49tcuu 12vpa8fyiypPD9VWb7241+e005eLZ1oMz+hPZTykxFKckWioxVxUnAgATUJq2wUDAAA= X-CMS-MailID: 20240425184656epcas5p42228cdef753cf20a266d12de5bc130f0 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184656epcas5p42228cdef753cf20a266d12de5bc130f0 References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta In case of split, the len and offset of bvec gets updated in the iter. Use it to fetch the right bvec, and copy it back to user meta buffer. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index c1955f01412e..b4042414a08f 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -108,11 +108,15 @@ static void bio_integrity_uncopy_user(struct bio_integrity_payload *bip) unsigned short nr_vecs = bip->bip_max_vcnt - 1; struct bio_vec *copy = &bip->bip_vec[1]; size_t bytes = bip->bip_iter.bi_size; + struct bio_vec copy_bvec, src_bvec; struct iov_iter iter; int ret; - iov_iter_bvec(&iter, ITER_DEST, copy, nr_vecs, bytes); - ret = copy_to_iter(bvec_virt(bip->bip_vec), bytes, &iter); + copy_bvec = mp_bvec_iter_bvec(copy, bip->bip_iter); + src_bvec = mp_bvec_iter_bvec(bip->bip_vec, bip->bip_iter); + + iov_iter_bvec(&iter, ITER_DEST, ©_bvec, nr_vecs, bytes); + ret = copy_to_iter(bvec_virt(&src_bvec), bytes, &iter); WARN_ON_ONCE(ret != bytes); bio_integrity_unpin_bvec(copy, nr_vecs, true); 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Fri, 26 Apr 2024 03:46:58 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPA id 20240425184658epcas5p2adb6bf01a5c56ffaac3a55ab57afaf8e~JmlPT_CW42219922199epcas5p2t; Thu, 25 Apr 2024 18:46:58 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240425184658epsmtrp28f3c47bbf444e46e51d01a1353aca379~JmlPTSy700239002390epsmtrp2Z; Thu, 25 Apr 2024 18:46:58 +0000 (GMT) X-AuditID: b6c32a44-921fa70000002198-cd-662aa522290c Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id 8E.C2.19234.125AA266; Fri, 26 Apr 2024 03:46:57 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184656epsmtip15159a669c0532a2ebf6c4175721ddf12~JmlNibyJU3082730827epsmtip1Z; Thu, 25 Apr 2024 18:46:55 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 04/10] block: avoid unpinning/freeing the bio_vec incase of cloned bio Date: Fri, 26 Apr 2024 00:09:37 +0530 Message-Id: <20240425183943.6319-5-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrEJsWRmVeSWpSXmKPExsWy7bCmlq7SUq00g6NNuhZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFHZ NhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJuam2Si4+AbpumTlAVysplCXm lAKFAhKLi5X07WyK8ktLUhUy8otLbJVSC1JyCkwK9IoTc4tL89L18lJLrAwNDIxMgQoTsjMO fXrLUjCBu6J94QfGBsadnF2MnBwSAiYSX25cYe9i5OIQEtjNKNFz/zYThPOJUeLrpQZWOGfG oilMMC1TN29ghkjsZJSYtfAWVNVnRonFrzuAqjg42AQ0JS5MLgVpEBFIkXi17jUjiM0s8JRR 4kcn2CBhgQiJ3Yuus4PYLAKqEt3zv4HFeQXMJY4dXcgIsUxeYual72A1nAIWEpMvnmaHqBGU ODnzCQvETHmJ5q2zwQ6SEFjLIfFr0j52iGYXiUc3f0INEpZ4dXwLVFxK4vO7vWwQdrLEpZnn oD4rkXi85yCUbS/ReqqfGeQXZqBf1u/Sh9jFJ9H7+wnYixICvBIdbUIQ1YoS9yY9ZYWwxSUe zlgCZXtI/Hw0ERq83YwS11ftZpzAKD8LyQuzkLwwC2HbAkbmVYySqQXFuempyaYFhnmp5fCI Tc7P3cQITrxaLjsYb8z/p3eIkYmD8RCjBAezkgjvzY8aaUK8KYmVValF+fFFpTmpxYcYTYFh PJFZSjQ5H5j680riDU0sDUzMzMxMLI3NDJXEeV+3zk0REkhPLEnNTk0tSC2C6WPi4JRqYBKI fjLvo/HUq8ed+FRdom3j1ZwkdVunvYk9s1RDKfnefM/N7kcKxMrWXZfWLuuuWPX5euCVXSVW 4SeWK5aunNNonXqn4UWTcOBLc2NhoXjdB3e/9c1+3VKUbfNm/ZYMHvv409yWERE77rPHLzY2 utz7/brMA78oLafZCvtlIiZ8/a5V+/dchPtpkUediqvs2zlOLXfv4P5e2ucltvWB1sXWL5du lt1c8e/Arnnnj1xx91/UqmjebCp62GR+1KEJxw+5KvgUP5D3P1q01W3/5ufrTmgLM/uHLjkd mN0/MTZq64NCQ4s8nW85RVXvH/5J6/LJnzV/k1j22hMlD3x5Sv/3btfTlJUUeP55s4b2eiWW 4oxEQy3mouJEAOSQmbdFBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrILMWRmVeSWpSXmKPExsWy7bCSnK7iUq00g+nzrCyaJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mg59estSMIG7on3hB8YGxp2cXYycHBICJhJTN29g7mLk4hAS2M4ocXzH SmaIhLhE87Uf7BC2sMTKf8/ZIYo+MkqsO7mVsYuRg4NNQFPiwuRSkBoRgSyJvf1XwGqYBd4y Ssz/u4cZpEZYIEzi7Il4kBoWAVWJ7vnfmEBsXgFziWNHFzJCzJeXmHnpO9guTgELickXT4PZ QkA1U9csYoSoF5Q4OfMJC4jNDFTfvHU28wRGgVlIUrOQpBYwMq1iFE0tKM5Nz00uMNQrTswt Ls1L10vOz93ECI4VraAdjMvW/9U7xMjEwXiIUYKDWUmE9+ZHjTQh3pTEyqrUovz4otKc1OJD jNIcLErivMo5nSlCAumJJanZqakFqUUwWSYOTqkGpnrps0r+m4XDYqbXKeh83RDPv2LzqhUN GS8EM6Q/9MhNmvM/c8aH7hOVLX6TT2ypjpQ4JLjx74Qum6k/5/WKzVjzak5zz4SZnG9nf582 b1OBT1TJZ60ThxarqH2POTUzqeVyQNPPewuVeL2C12TYFrl8MpuYonPjM6vJpzbR+SnsjIpK 9XsXzufauain8/OZli2b2bTjvCa3rFvt9P6Alt+5P40ng1Xf1G2+sd3lldGbLVtnnX/47Y5z csm0O1aKm58+/HG5xmmBxJLXpvvUftnd0O6VTfoQ0nmISzru0cEe0e2bV5zTqW5+bZpwd4XU yb1HlvqtXG3+eFOQ26bGq59+lP9ZmSc0zcV5q8GDwskTlViKMxINtZiLihMBC75WrQQDAAA= X-CMS-MailID: 20240425184658epcas5p2adb6bf01a5c56ffaac3a55ab57afaf8e X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184658epcas5p2adb6bf01a5c56ffaac3a55ab57afaf8e References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta Do it only once when the parent bio completes. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index b4042414a08f..b698eb77515d 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -119,7 +119,8 @@ static void bio_integrity_uncopy_user(struct bio_integrity_payload *bip) ret = copy_to_iter(bvec_virt(&src_bvec), bytes, &iter); WARN_ON_ONCE(ret != bytes); - bio_integrity_unpin_bvec(copy, nr_vecs, true); + if (!bio_flagged((bip->bip_bio), BIO_CLONED)) + bio_integrity_unpin_bvec(copy, nr_vecs, true); } static void bio_integrity_unmap_user(struct bio_integrity_payload *bip) @@ -129,11 +130,14 @@ static void bio_integrity_unmap_user(struct bio_integrity_payload *bip) if (bip->bip_flags & BIP_COPY_USER) { if (dirty) bio_integrity_uncopy_user(bip); - kfree(bvec_virt(bip->bip_vec)); + if (!bio_flagged((bip->bip_bio), BIO_CLONED)) + kfree(bvec_virt(bip->bip_vec)); return; } - bio_integrity_unpin_bvec(bip->bip_vec, bip->bip_max_vcnt, dirty); + if (!bio_flagged((bip->bip_bio), BIO_CLONED)) + bio_integrity_unpin_bvec(bip->bip_vec, bip->bip_max_vcnt, + dirty); } /** From patchwork Thu Apr 25 18:39:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 13643647 Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) (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 E6BA712C463 for ; Thu, 25 Apr 2024 18:47:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.33 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714070826; cv=none; b=ZSSfrflPIwWOwLE6+7+fEeDRWYExYz2AU2UoGk26v1y0lBe/YuIHrUAh8MtNBEbeI7ltZ4UblG6U+d0s6INMGW4dHwXHxWvTn6fpuJwOPu52irG1FvI3PkVTzdxURPDv7LGpHV1iose6GkJ4b2XYgG/pyqPSFDMB7j5TTnq5zvI= ARC-Message-Signature: i=1; a=rsa-sha256; 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Fri, 26 Apr 2024 03:47:00 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p1.samsung.com (KnoxPortal) with ESMTPA id 20240425184700epcas5p1687590f7e4a3f3c3620ac27af514f0ca~JmlRRXjxl1328213282epcas5p1M; Thu, 25 Apr 2024 18:47:00 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240425184700epsmtrp260d58501356653291e5003ddd22fb1f8~JmlRQnl8X0238902389epsmtrp2d; Thu, 25 Apr 2024 18:47:00 +0000 (GMT) X-AuditID: b6c32a49-f53fa700000025c2-1f-662aa52491d9 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id 6F.C2.19234.325AA266; Fri, 26 Apr 2024 03:47:00 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184658epsmtip1ffeb5676217af8158896c1660e49b425~JmlPcCPj-0041100411epsmtip1l; Thu, 25 Apr 2024 18:46:58 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Kanchan Joshi , Anuj Gupta Subject: [PATCH 05/10] block, nvme: modify rq_integrity_vec function Date: Fri, 26 Apr 2024 00:09:38 +0530 Message-Id: <20240425183943.6319-6-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrIJsWRmVeSWpSXmKPExsWy7bCmhq7KUq00gz0v5C2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKOy bTJSE1NSixRS85LzUzLz0m2VvIPjneNNzQwMdQ0tLcyVFPISc1NtlVx8AnTdMnOArlZSKEvM KQUKBSQWFyvp29kU5ZeWpCpk5BeX2CqlFqTkFJgU6BUn5haX5qXr5aWWWBkaGBiZAhUmZGfM XdvHVvBcvGLJKYkGxr/CXYycHBICJhJvjhxj7WLk4hAS2M0o8aZrEguE84lRYsvxQ2xwzuut N1hhWiZfeMEIYgsJ7GSU2H8uDqLoM6PEiXNvgIo4ONgENCUuTC4FqRERSJF4te41I0gNs8BT Rok9X28ygSSEBVwknrzoBhvKIqAqcetNG1icV8Bc4uTijSwQy+QlZl76zg5icwpYSEy+eJod okZQ4uTMJ2A1zEA1zVtnM4MskBBYySFx7dwaJohmF4lvc9dBXS0s8er4FnYIW0ri87u9bBB2 ssSlmeeg6kskHu85CGXbS7Se6mcGeYYZ6Jn1u/QhdvFJ9P5+wgQSlhDglehoE4KoVpS4N+kp 1CZxiYczlkDZHhKv205AQ7SbUeLR1JvsExjlZyF5YRaSF2YhbFvAyLyKUTK1oDg3PbXYtMAw L7UcHq/J+bmbGMFpV8tzB+PdBx/0DjEycTAeYpTgYFYS4b35USNNiDclsbIqtSg/vqg0J7X4 EKMpMIwnMkuJJucDE39eSbyhiaWBiZmZmYmlsZmhkjjv69a5KUIC6YklqdmpqQWpRTB9TByc Ug1MVduK72SdSn5tyrEz413esTsLj6dMk5gTpRSb9PZ47XExw4n3lBLeT9qxu3LHdzvD/dfM ZZNWr1DfOXGrxfIw76bsKaUzPi56fvZryfWzYnM02uXZbnDv5rgaXNK40r0rY/+qbZLH6h93 8M9M///kZYfwQ+tNghF3kg6kJmuzRkyc5Si16vkZtQX3XtuvT155bRqH/S3R1s7L69Jntb7i taze71h6J2Xf9Ion605xnApuPSn1onHnjvencjXXV+fLCqydI5tW/ksy62LItgtnj8y+Y5h3 kO9pTY7b/rTEx1pdqx5nFga5+fPt9W/8rjg7+O4KtZnZ3MxtoYVeiesdtQs2zAgI+D5hZdS7 LI7iKiWW4oxEQy3mouJEALqwLQdEBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrALMWRmVeSWpSXmKPExsWy7bCSnK7KUq00g9mtjBZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFFc NimpOZllqUX6dglcGXPX9rEVPBevWHJKooHxr3AXIyeHhICJxOQLLxi7GLk4hAS2M0rsn3Ce ESIhLtF87Qc7hC0ssfLfczBbSOAjo8Tt1S5djBwcbAKaEhcml4KERQSyJPb2X2EHmcMs8JZR YtvSlWwgCWEBF4knL7pZQWwWAVWJW2/amEBsXgFziZOLN7JAzJeXmHnpO9h8TgELickXT0Pt MpeYumYRI0S9oMTJmU/A6pmB6pu3zmaewCgwC0lqFpLUAkamVYyiqQXFuem5yQWGesWJucWl eel6yfm5mxjBkaIVtINx2fq/eocYmTgYDzFKcDArifDe/KiRJsSbklhZlVqUH19UmpNafIhR moNFSZxXOaczRUggPbEkNTs1tSC1CCbLxMEp1cC0njty4ovvLUxfxB1dir6yPzjz6MbC7bvu nBJcenNq8Yl4g9yJjYkW1Srv8mX5rk3ZMdHSx9mgpmKy2pxDVudMVrm6WDvvUJ/WHT9h/eeZ ByZm2WRu6N7++fvc1M0djaoK+8Kv5rHUiW7LWf6es/bS1ttymQf71qpMd98b+pEp6ozyPzZH r4CyzaHCip8jXS7f2PdlxfQPjz77sa9Yk3T/2Mun/27q6rVVcnZsPSbaGykqW9nc8nb5zvjz e5Pd3r//vGeKm39ngsMt7jPpE5Xtnpnkznrm9URn28m929VnxnwxzWf58XDW9Ct5m49zWr9N T1zw59jZo/LcHLtaAmRvyLskRr7MlpJvfL+GpSufSYmlOCPRUIu5qDgRAFle4/MDAwAA X-CMS-MailID: 20240425184700epcas5p1687590f7e4a3f3c3620ac27af514f0ca X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184700epcas5p1687590f7e4a3f3c3620ac27af514f0ca References: <20240425183943.6319-1-joshi.k@samsung.com> rq_integrity_vec always returns the first bio_vec, and does not take bip_iter into consideration. Modify it so that it does. This is similar to how req_bvec() works for data buffers. This is necessary for correct dma map/unmap of meta buffer when it was split in the block layer. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- drivers/nvme/host/pci.c | 9 +++++---- include/linux/blk-integrity.h | 13 +++++++------ 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 8e0bb9692685..bc5177ea6330 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -825,9 +825,9 @@ static blk_status_t nvme_map_metadata(struct nvme_dev *dev, struct request *req, struct nvme_command *cmnd) { struct nvme_iod *iod = blk_mq_rq_to_pdu(req); + struct bio_vec bv = rq_integrity_vec(req); - iod->meta_dma = dma_map_bvec(dev->dev, rq_integrity_vec(req), - rq_dma_dir(req), 0); + iod->meta_dma = dma_map_bvec(dev->dev, &bv, rq_dma_dir(req), 0); if (dma_mapping_error(dev->dev, iod->meta_dma)) return BLK_STS_IOERR; cmnd->rw.metadata = cpu_to_le64(iod->meta_dma); @@ -964,9 +964,10 @@ static __always_inline void nvme_pci_unmap_rq(struct request *req) if (blk_integrity_rq(req)) { struct nvme_iod *iod = blk_mq_rq_to_pdu(req); + struct bio_vec bv = rq_integrity_vec(req); - dma_unmap_page(dev->dev, iod->meta_dma, - rq_integrity_vec(req)->bv_len, rq_dma_dir(req)); + dma_unmap_page(dev->dev, iod->meta_dma, bv.bv_len, + rq_dma_dir(req)); } if (blk_rq_nr_phys_segments(req)) diff --git a/include/linux/blk-integrity.h b/include/linux/blk-integrity.h index e253e7bd0d17..9223050c0f75 100644 --- a/include/linux/blk-integrity.h +++ b/include/linux/blk-integrity.h @@ -109,11 +109,12 @@ static inline bool blk_integrity_rq(struct request *rq) * Return the first bvec that contains integrity data. Only drivers that are * limited to a single integrity segment should use this helper. */ -static inline struct bio_vec *rq_integrity_vec(struct request *rq) +static inline struct bio_vec rq_integrity_vec(struct request *rq) { - if (WARN_ON_ONCE(queue_max_integrity_segments(rq->q) > 1)) - return NULL; - return rq->bio->bi_integrity->bip_vec; + WARN_ON_ONCE(queue_max_integrity_segments(rq->q) > 1); + + return mp_bvec_iter_bvec(rq->bio->bi_integrity->bip_vec, + rq->bio->bi_integrity->bip_iter); } #else /* CONFIG_BLK_DEV_INTEGRITY */ static inline int blk_rq_count_integrity_sg(struct request_queue *q, @@ -177,9 +178,9 @@ static inline int blk_integrity_rq(struct request *rq) return 0; } -static inline struct bio_vec *rq_integrity_vec(struct request *rq) +static inline struct bio_vec rq_integrity_vec(struct request *rq) { - return NULL; + return (struct bio_vec){0}; } #endif /* CONFIG_BLK_DEV_INTEGRITY */ #endif /* _LINUX_BLK_INTEGRITY_H */ From patchwork Thu Apr 25 18:39:39 2024 Content-Type: text/plain; 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Thu, 25 Apr 2024 18:47:02 +0000 (GMT) Received: from epsmgmc1p1new.samsung.com (unknown [182.195.42.40]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20240425184702epsmtrp18037949dd8671c2b47ec3374d07e8cf3~JmlTMODXx0085000850epsmtrp1f; Thu, 25 Apr 2024 18:47:02 +0000 (GMT) X-AuditID: b6c32a50-f57ff70000004be7-cd-662aa526028b Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmc1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 2B.F0.07541.625AA266; Fri, 26 Apr 2024 03:47:02 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184700epsmtip12c9a5239317da24686f8384443bb40e6~JmlRXCNYr0041000410epsmtip1N; Thu, 25 Apr 2024 18:47:00 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 06/10] block: modify bio_integrity_map_user argument Date: Fri, 26 Apr 2024 00:09:39 +0530 Message-Id: <20240425183943.6319-7-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrMJsWRmVeSWpSXmKPExsWy7bCmuq7aUq00g4bt6hZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFHZ NhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJuam2Si4+AbpumTlAVysplCXm lAKFAhKLi5X07WyK8ktLUhUy8otLbJVSC1JyCkwK9IoTc4tL89L18lJLrAwNDIxMgQoTsjN6 dl9gKzgtX7Gp7zhLA+MvyS5GTg4JAROJ609Ws3UxcnEICexhlJgzaxo7hPOJUWLHsycsEM43 Ron210cZYVp+vJ7ABJHYyyjR2TQbqv8zo8S2NTuB+jk42AQ0JS5MLgVpEBFIkXi17jVYM7PA U0aJH51MILawgIvEk21XWUFsFgFViRs//oDZvALmEh9PbGSDWCYvMfPSd3YQm1PAQmLyxdPs EDWCEidnglwHMlNeonnrbGaQGyQE1nJIzLt8EOpSF4kf9/5CDRKWeHV8CzuELSXxsr8Nyk6W uDTzHBOEXSLxeM9BKNteovVUPzPIL8xAv6zfpQ+xi0+i9/cTJpCwhACvREebEES1osS9SU9Z IWxxiYczlkDZHhLbL5yFhmg3o8S578eYJzDKz0LywiwkL8xC2LaAkXkVo1RqQXFuemqyaYGh bl5qOTxmk/NzNzGCU69WwA7G1Rv+6h1iZOJgPMQowcGsJMJ786NGmhBvSmJlVWpRfnxRaU5q 8SFGU2AgT2SWEk3OByb/vJJ4QxNLAxMzMzMTS2MzQyVx3tetc1OEBNITS1KzU1MLUotg+pg4 OKUamELFDjccknIKlmJlt/B5ahN4ftXR4kdpBvqsij2+7X6B3H0ZZv+YdrMWSd3lqG5SLxHz Zpq76Kzn7elKX5Y8O25gHqrRc0U0UHjSMqbPN9fNiLZ/I3EzSvi26sS8yV0PlI80mO2ctHJ2 5cwvgk/Mr896ErxmnY/g7mtRwmfMJxZk5TZeY/prkerrW/frcJPGxGt/r9qX2+f/yVldf2t/ 6KEfj7cwxHzMfVPMeN/rBxvDvPmvtaeLWz/U2jBHq67557+JBybd6poT/kZ26U/33XJ/b83Z 2n+2ItDn2Y1pCmxbvx6YwXuk8vwOhwOP3SI6dl/9p3Biy9tLTLtKd3D5TvSUux6TpnddYa+0 DcePnktKLMUZiYZazEXFiQBoTdiSRgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrGLMWRmVeSWpSXmKPExsWy7bCSnK7aUq00g8kfWC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mnp2X2ArOC1fsanvOEsD4y/JLkZODgkBE4kfrycwdTFycQgJ7GaUuLf0 HxtEQlyi+doPdghbWGLlv+fsEEUfGSX2/p/A0sXIwcEmoClxYXIpSI2IQJbE3v4rYDXMAm8Z Jeb/3cMMkhAWcJF4su0qK4jNIqAqcePHHzCbV8Bc4uOJjVDL5CVmXvoOtoxTwEJi8sXTYLYQ UM3UNYsYIeoFJU7OfMICYjMD1Tdvnc08gVFgFpLULCSpBYxMqxglUwuKc9Nzkw0LDPNSy/WK E3OLS/PS9ZLzczcxgqNGS2MH4735//QOMTJxMB5ilOBgVhLhvflRI02INyWxsiq1KD++qDQn tfgQozQHi5I4r+GM2SlCAumJJanZqakFqUUwWSYOTqkGJvXbJjyNbx3n7652j7afwLHnmFnt DqewL2e9Lr4QqGh3MrZ9HVy95mHLjxKFytJyp7BoAeZLvpv1nivllPB7qa2NPuAz9cOWpQqP dh7v7EhzK7A2XJN75+7G5Q28osuEn/Ze54laFOv3pPJu6vLXNZ7PFK7N+dV34tTNg4aLH0QF mYhNnbzFMPoIa4ZvdfPMSW+XV837GvPv99oijfk3uPmuZPKf7l6zvqbTakfN/1mf508Q0ftm HmaSu+bpp98tl5zSLzy0lDv58/sir/k7GJtbP7nWSqc+PnKQ9533i5thh5IdaidnSKrmJUb9 UXQxXtKhctDH0ICfTfJj0ZNGe5Opa68IPgmertu7oNmuUYmlOCPRUIu5qDgRAHhULSgJAwAA X-CMS-MailID: 20240425184702epcas5p1ccb0df41b07845bc252d69007558e3fa X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184702epcas5p1ccb0df41b07845bc252d69007558e3fa References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta This patch refactors bio_integrity_map_user to accept iov_iter as argument. This is a prep patch. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 14 ++++++-------- drivers/nvme/host/ioctl.c | 11 +++++++++-- include/linux/bio.h | 7 ++++--- 3 files changed, 19 insertions(+), 13 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index b698eb77515d..1085cf45f51e 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -318,17 +318,16 @@ static unsigned int bvec_from_pages(struct bio_vec *bvec, struct page **pages, return nr_bvecs; } -int bio_integrity_map_user(struct bio *bio, void __user *ubuf, ssize_t bytes, - u32 seed) +int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter, + u32 seed) { struct request_queue *q = bdev_get_queue(bio->bi_bdev); unsigned int align = q->dma_pad_mask | queue_dma_alignment(q); struct page *stack_pages[UIO_FASTIOV], **pages = stack_pages; struct bio_vec stack_vec[UIO_FASTIOV], *bvec = stack_vec; + size_t offset, bytes = iter->count; unsigned int direction, nr_bvecs; - struct iov_iter iter; int ret, nr_vecs; - size_t offset; bool copy; if (bio_integrity(bio)) @@ -341,8 +340,7 @@ int bio_integrity_map_user(struct bio *bio, void __user *ubuf, ssize_t bytes, else direction = ITER_SOURCE; - iov_iter_ubuf(&iter, direction, ubuf, bytes); - nr_vecs = iov_iter_npages(&iter, BIO_MAX_VECS + 1); + nr_vecs = iov_iter_npages(iter, BIO_MAX_VECS + 1); if (nr_vecs > BIO_MAX_VECS) return -E2BIG; if (nr_vecs > UIO_FASTIOV) { @@ -352,8 +350,8 @@ int bio_integrity_map_user(struct bio *bio, void __user *ubuf, ssize_t bytes, pages = NULL; } - copy = !iov_iter_is_aligned(&iter, align, align); - ret = iov_iter_extract_pages(&iter, &pages, bytes, nr_vecs, 0, &offset); + copy = !iov_iter_is_aligned(iter, align, align); + ret = iov_iter_extract_pages(iter, &pages, bytes, nr_vecs, 0, &offset); if (unlikely(ret < 0)) goto free_bvec; diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 499a8bb7cac7..4ed389edb3b6 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -145,8 +145,15 @@ static int nvme_map_user_request(struct request *req, u64 ubuffer, if (bdev) { bio_set_dev(bio, bdev); if (meta_buffer && meta_len) { - ret = bio_integrity_map_user(bio, meta_buffer, meta_len, - meta_seed); + struct iov_iter iter; + unsigned int direction; + + if (bio_data_dir(bio) == READ) + direction = ITER_DEST; + else + direction = ITER_SOURCE; + iov_iter_ubuf(&iter, direction, meta_buffer, meta_len); + ret = bio_integrity_map_user(bio, &iter, meta_seed); if (ret) goto out_unmap; req->cmd_flags |= REQ_INTEGRITY; diff --git a/include/linux/bio.h b/include/linux/bio.h index 875d792bffff..20cf47fc851f 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -723,7 +723,7 @@ static inline bool bioset_initialized(struct bio_set *bs) for_each_bio(_bio) \ bip_for_each_vec(_bvl, _bio->bi_integrity, _iter) -int bio_integrity_map_user(struct bio *bio, void __user *ubuf, ssize_t len, u32 seed); +int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter, u32 seed); extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int); extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int); 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This is a prep patch. Signed-off-by: Kanchan Joshi --- include/linux/bio.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/bio.h b/include/linux/bio.h index 20cf47fc851f..0281b356935a 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -331,6 +331,12 @@ enum bip_flags { BIP_COPY_USER = 1 << 6, /* Kernel bounce buffer in use */ }; +struct uio_meta { + u16 flags; + u16 apptag; + struct iov_iter iter; +}; + /* * bio integrity payload */ From patchwork Thu Apr 25 18:39:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 13643652 Received: from mailout2.samsung.com (mailout2.samsung.com [203.254.224.25]) (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 782E31514ED for ; Thu, 25 Apr 2024 18:47:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.25 ARC-Seal: i=1; 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Fri, 26 Apr 2024 03:47:06 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184704epsmtip1f173edc993d14c8e8955b5c8f8ab8888~JmlVEU6nb3082730827epsmtip1c; Thu, 25 Apr 2024 18:47:04 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi , Nitesh Shetty Subject: [PATCH 08/10] io_uring/rw: add support to send meta along with read/write Date: Fri, 26 Apr 2024 00:09:41 +0530 Message-Id: <20240425183943.6319-9-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrOJsWRmVeSWpSXmKPExsWy7bCmhq7WUq00gzuHrS2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//HZLHt93xmBz6PazMmsnjsnHWX3ePy2VKPTas62Tw2L6n32H2zgc3j49NbLB59W1Yxenze JBfAGZVtk5GamJJapJCal5yfkpmXbqvkHRzvHG9qZmCoa2hpYa6kkJeYm2qr5OIToOuWmQN0 upJCWWJOKVAoILG4WEnfzqYov7QkVSEjv7jEVim1ICWnwKRArzgxt7g0L10vL7XEytDAwMgU qDAhO+P5z/MsBXPCKnbfO8jYwHjKtYuRk0NCwETi3LP7zF2MXBxCAnsYJS5O3cAK4XxilDg2 7xxU5hujxPR/G1m6GDnAWnq+aEDE9zJKnPl9BqrjM6PEikm9rCBFbAKaEhcml4KsEBFIkXi1 7jUjSA2zQA+TxNSvN1hAEsICIRK7lvxnBKlnEVCV6L0pDRLmFTCXOLzsDBvEefISMy99Zwex OQUsJCZfPM0OUSMocXLmE7AxzEA1zVtngx0qIbCDQ2LdlEYmiGYXieeTN0PZwhKvjm9hh7Cl JF72t0HZyRKXZp6DqimReLznIJRtL9F6qp8Z5DZmoF/W79KH2MUn0fv7CRMkHHglOtqEIKoV Je5NesoKYYtLPJyxBMr2kLhzaRI0DLsZJV4u3skygVF+FpIXZiF5YRbCtgWMzKsYpVILinPT U5NNCwx181LL4RGbnJ+7iRGcgrUCdjCu3vBX7xAjEwfjIUYJDmYlEd6bHzXShHhTEiurUovy 44tKc1KLDzGaAsN4IrOUaHI+MAvklcQbmlgamJiZmZlYGpsZKonzvm6dmyIkkJ5YkpqdmlqQ WgTTx8TBKdXAFN2VmCc0sd6Wt++Uc/B3mZppsQsVJMIki8qktx6cckL9uaZevZfVBMvaUMOT 9zuzTTkzD7OcXHLjh9/7E8c/Hlkzp4773+KTP3OYqu54byzdovTtzuvzCe9YZn7xaWiqZezg 2vn+gtUyedkFItPebdaTEK4wWRM3J+jATt9Lc1+x7tn/XGXu0bvKItPa+g0q/7xafaqF5QOr S+Vxj4eHVZ7MODWV02j9TIbw9R5JBzouLz73vvi1ncXSmqnrOwqPHrlwVmNSkwtXsNXS/dnK bv7rKiJsJtkkxv465/Lz2DcF7p/HEzyYbjy74Hff8DBPot/Ut2vZF5mnn31q0pDgun8Tw+eH nR02c84YirbK/lJiKc5INNRiLipOBABxTg5BSgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJLMWRmVeSWpSXmKPExsWy7bCSnK7WUq00g3XNghZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jstj2ez6zA5/HtRkTWTx2zrrL7nH5bKnHplWdbB6bl9R77L7ZwObx8ektFo++LasYPT5v kgvgjOKySUnNySxLLdK3S+DKeP7zPEvBnLCK3fcOMjYwnnLtYuTgkBAwkej5otHFyMUhJLCb UWLlzi62LkZOoLi4RPO1H+wQtrDEyn/P2SGKPjJKfDhwnBmkmU1AU+LC5FKQGhGBLIm9/VfA apgFpjFJbP3/CWyQsECQxIWntxlB6lkEVCV6b0qDhHkFzCUOLzsDtUteYual72C7OAUsJCZf PA1mCwHVTF2ziBGiXlDi5MwnLCA2M1B989bZzBMYBWYhSc1CklrAyLSKUTK1oDg3PbfYsMAw L7Vcrzgxt7g0L10vOT93EyM4drQ0dzBuX/VB7xAjEwfjIUYJDmYlEd6bHzXShHhTEiurUovy 44tKc1KLDzFKc7AoifOKv+hNERJITyxJzU5NLUgtgskycXBKNTAdYDzod/zwB6fgVlP5BQpL 7ofd1gq72ihU8/dOiDBzzd3Uw2qMbcrXt/k/yvZe0rxOVaskskb3af/9U65xvW/q1xp2Npyf u0948xVr7ilKkxwuT1Ceyrd/5/NLH51X1Fim78n4mbnec8P1M21KzgXXf6fwXN1vOqXQ2LNU 79nh5xesd24q9PuS+O9Z6ZLnjZHxkeqzV+vpSKyOXuol8XW98Xe289Z3ZitmOZ7n2fk9w3rF ibuPvH9e/+1f9X/Pl8mGj+5/3XDjY+c/583Hfhz5OPf20+1FT5MVeT70Jvu+UvX6cPFX3uHe JpbGiqU3vQsZC727jEwZTe9v2N5n9+j8+o2vW9kMuthYdy3bp6TgrsRSnJFoqMVcVJwIAAQY /j8MAwAA X-CMS-MailID: 20240425184706epcas5p1d75c19d1d1458c52fc4009f150c7dc7d X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184706epcas5p1d75c19d1d1458c52fc4009f150c7dc7d References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta This patch introduces IORING_OP_READ_META and IORING_OP_WRITE_META opcodes which allow sending a meta buffer along with read/write. The meta buffer, its length, apptag and integrity check flags can be specified by the application in the newly introduced meta_buf, meta_len, apptag and meta_flags fields of SQE. Use the user-passed information to prepare uio_meta descriptor, and pass it down using kiocb->private. Meta exchange is supported only for direct IO. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi Signed-off-by: Nitesh Shetty --- include/linux/fs.h | 1 + include/uapi/linux/io_uring.h | 15 +++++++ io_uring/io_uring.c | 4 ++ io_uring/opdef.c | 30 ++++++++++++++ io_uring/rw.c | 76 +++++++++++++++++++++++++++++++++-- io_uring/rw.h | 11 ++++- 6 files changed, 132 insertions(+), 5 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 8dfd53b52744..8868d17ae8f9 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -329,6 +329,7 @@ struct readahead_control; #define IOCB_NOIO (1 << 20) /* can use bio alloc cache */ #define IOCB_ALLOC_CACHE (1 << 21) +#define IOCB_USE_META (1 << 22) /* * IOCB_DIO_CALLER_COMP can be set by the iocb owner, to indicate that the * iocb completion can be passed back to the owner for execution from a safe diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index a7f847543a7f..d4653b52fdd6 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -97,6 +97,12 @@ struct io_uring_sqe { __u64 addr3; __u64 __pad2[1]; }; + struct { + __u64 meta_addr; + __u32 meta_len; + __u16 meta_flags; + __u16 apptag; + }; __u64 optval; /* * If the ring is initialized with IORING_SETUP_SQE128, then @@ -106,6 +112,13 @@ struct io_uring_sqe { }; }; +/* + * meta io flags + */ +#define META_CHK_GUARD (1U << 0) /* guard is valid */ +#define META_CHK_APPTAG (1U << 1) /* app tag is valid */ +#define META_CHK_REFTAG (1U << 2) /* ref tag is valid */ + /* * If sqe->file_index is set to this for opcodes that instantiate a new * direct descriptor (like openat/openat2/accept), then io_uring will allocate @@ -256,6 +269,8 @@ enum io_uring_op { IORING_OP_FUTEX_WAITV, IORING_OP_FIXED_FD_INSTALL, IORING_OP_FTRUNCATE, + IORING_OP_READ_META, + IORING_OP_WRITE_META, /* this goes last, obviously */ IORING_OP_LAST, diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 3c9087f37c43..af95fc8d988c 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -3723,7 +3723,11 @@ static int __init io_uring_init(void) BUILD_BUG_SQE_ELEM(44, __u16, addr_len); BUILD_BUG_SQE_ELEM(46, __u16, __pad3[0]); BUILD_BUG_SQE_ELEM(48, __u64, addr3); + BUILD_BUG_SQE_ELEM(48, __u64, meta_addr); BUILD_BUG_SQE_ELEM_SIZE(48, 0, cmd); + BUILD_BUG_SQE_ELEM(56, __u32, meta_len); + BUILD_BUG_SQE_ELEM(60, __u16, meta_flags); + BUILD_BUG_SQE_ELEM(62, __u16, apptag); BUILD_BUG_SQE_ELEM(56, __u64, __pad2); BUILD_BUG_ON(sizeof(struct io_uring_files_update) != diff --git a/io_uring/opdef.c b/io_uring/opdef.c index a16f73938ebb..8b8fdcfb7f30 100644 --- a/io_uring/opdef.c +++ b/io_uring/opdef.c @@ -444,6 +444,28 @@ const struct io_issue_def io_issue_defs[] = { .prep = io_eopnotsupp_prep, #endif }, + [IORING_OP_READ_META] = { + .needs_file = 1, + .plug = 1, + .audit_skip = 1, + .ioprio = 1, + .iopoll = 1, + .iopoll_queue = 1, + .async_size = sizeof(struct io_async_rw), + .prep = io_prep_read_meta, + .issue = io_rw_meta, + }, + [IORING_OP_WRITE_META] = { + .needs_file = 1, + .plug = 1, + .audit_skip = 1, + .ioprio = 1, + .iopoll = 1, + .iopoll_queue = 1, + .async_size = sizeof(struct io_async_rw), + .prep = io_prep_write_meta, + .issue = io_rw_meta, + }, [IORING_OP_READ_MULTISHOT] = { .needs_file = 1, .unbound_nonreg_file = 1, @@ -510,6 +532,14 @@ const struct io_cold_def io_cold_defs[] = { .cleanup = io_readv_writev_cleanup, .fail = io_rw_fail, }, + [IORING_OP_READ_META] = { + .name = "READ_META", + .fail = io_rw_fail, + }, + [IORING_OP_WRITE_META] = { + .name = "WRITE_META", + .fail = io_rw_fail, + }, [IORING_OP_FSYNC] = { .name = "FSYNC", }, diff --git a/io_uring/rw.c b/io_uring/rw.c index 3134a6ece1be..b2c9ac91d5e5 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -269,6 +269,7 @@ static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe, rw->kiocb.ki_ioprio = get_current_ioprio(); } rw->kiocb.dio_complete = NULL; + rw->kiocb.ki_flags = 0; rw->addr = READ_ONCE(sqe->addr); rw->len = READ_ONCE(sqe->len); @@ -286,6 +287,41 @@ int io_prep_write(struct io_kiocb *req, const struct io_uring_sqe *sqe) return io_prep_rw(req, sqe, ITER_SOURCE, true); } +static int io_prep_rw_meta(struct io_kiocb *req, const struct io_uring_sqe *sqe, + int ddir, bool import) +{ + struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw); + struct io_async_rw *io; + struct kiocb *kiocb = &rw->kiocb; + int ret; + + ret = io_prep_rw(req, sqe, ddir, import); + if (unlikely(ret)) + return ret; + + io = req->async_data; + kiocb->ki_flags |= IOCB_USE_META; + io->meta.flags = READ_ONCE(sqe->meta_flags); + io->meta.apptag = READ_ONCE(sqe->apptag); + ret = import_ubuf(ddir, u64_to_user_ptr(READ_ONCE(sqe->meta_addr)), + READ_ONCE(sqe->meta_len), &io->meta.iter); + if (unlikely(ret < 0)) + return ret; + + iov_iter_save_state(&io->meta.iter, &io->iter_meta_state); + return 0; +} + +int io_prep_read_meta(struct io_kiocb *req, const struct io_uring_sqe *sqe) +{ + return io_prep_rw_meta(req, sqe, ITER_DEST, true); +} + +int io_prep_write_meta(struct io_kiocb *req, const struct io_uring_sqe *sqe) +{ + return io_prep_rw_meta(req, sqe, ITER_SOURCE, true); +} + static int io_prep_rwv(struct io_kiocb *req, const struct io_uring_sqe *sqe, int ddir) { @@ -587,6 +623,8 @@ static int kiocb_done(struct io_kiocb *req, ssize_t ret, req->flags &= ~REQ_F_REISSUE; iov_iter_restore(&io->iter, &io->iter_state); + if (unlikely(rw->kiocb.ki_flags & IOCB_USE_META)) + iov_iter_restore(&io->meta.iter, &io->iter_meta_state); return -EAGAIN; } return IOU_ISSUE_SKIP_COMPLETE; @@ -768,7 +806,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode) if (!(req->flags & REQ_F_FIXED_FILE)) req->flags |= io_file_get_flags(file); - kiocb->ki_flags = file->f_iocb_flags; + kiocb->ki_flags |= file->f_iocb_flags; ret = kiocb_set_rw_flags(kiocb, rw->flags); if (unlikely(ret)) return ret; @@ -787,7 +825,8 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode) if (!(kiocb->ki_flags & IOCB_DIRECT) || !file->f_op->iopoll) return -EOPNOTSUPP; - kiocb->private = NULL; + if (likely(!(kiocb->ki_flags & IOCB_USE_META))) + kiocb->private = NULL; kiocb->ki_flags |= IOCB_HIPRI; kiocb->ki_complete = io_complete_rw_iopoll; req->iopoll_completed = 0; @@ -853,7 +892,8 @@ static int __io_read(struct io_kiocb *req, unsigned int issue_flags) } else if (ret == -EIOCBQUEUED) { return IOU_ISSUE_SKIP_COMPLETE; } else if (ret == req->cqe.res || ret <= 0 || !force_nonblock || - (req->flags & REQ_F_NOWAIT) || !need_complete_io(req)) { + (req->flags & REQ_F_NOWAIT) || !need_complete_io(req) || + (kiocb->ki_flags & IOCB_USE_META)) { /* read all, failed, already did sync or don't want to retry */ goto done; } @@ -864,6 +904,12 @@ static int __io_read(struct io_kiocb *req, unsigned int issue_flags) * manually if we need to. */ iov_iter_restore(&io->iter, &io->iter_state); + if (unlikely(kiocb->ki_flags & IOCB_USE_META)) { + /* don't handle partial completion for read + meta */ + if (ret > 0) + goto done; + iov_iter_restore(&io->meta.iter, &io->iter_meta_state); + } do { /* @@ -1053,7 +1099,8 @@ int io_write(struct io_kiocb *req, unsigned int issue_flags) if (ret2 == -EAGAIN && (req->ctx->flags & IORING_SETUP_IOPOLL)) goto ret_eagain; - if (ret2 != req->cqe.res && ret2 >= 0 && need_complete_io(req)) { + if (ret2 != req->cqe.res && ret2 >= 0 && need_complete_io(req) + && !(kiocb->ki_flags & IOCB_USE_META)) { trace_io_uring_short_write(req->ctx, kiocb->ki_pos - ret2, req->cqe.res, ret2); @@ -1074,12 +1121,33 @@ int io_write(struct io_kiocb *req, unsigned int issue_flags) } else { ret_eagain: iov_iter_restore(&io->iter, &io->iter_state); + if (unlikely(kiocb->ki_flags & IOCB_USE_META)) + iov_iter_restore(&io->meta.iter, &io->iter_meta_state); if (kiocb->ki_flags & IOCB_WRITE) io_req_end_write(req); return -EAGAIN; } } +int io_rw_meta(struct io_kiocb *req, unsigned int issue_flags) +{ + struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw); + struct io_async_rw *io = req->async_data; + struct kiocb *kiocb = &rw->kiocb; + int ret; + + if (!(req->file->f_flags & O_DIRECT)) + return -EOPNOTSUPP; + + kiocb->private = &io->meta; + if (req->opcode == IORING_OP_READ_META) + ret = io_read(req, issue_flags); + else + ret = io_write(req, issue_flags); + + return ret; +} + void io_rw_fail(struct io_kiocb *req) { int res; diff --git a/io_uring/rw.h b/io_uring/rw.h index 3f432dc75441..a640071064e3 100644 --- a/io_uring/rw.h +++ b/io_uring/rw.h @@ -9,7 +9,13 @@ struct io_async_rw { struct iovec fast_iov; struct iovec *free_iovec; int free_iov_nr; - struct wait_page_queue wpq; + union { + struct wait_page_queue wpq; + struct { + struct uio_meta meta; + struct iov_iter_state iter_meta_state; + }; + }; }; int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe); @@ -17,9 +23,12 @@ int io_prep_write_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_prep_readv(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_prep_writev(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_prep_read(struct io_kiocb *req, const struct io_uring_sqe *sqe); +int io_prep_read_meta(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_prep_write(struct io_kiocb *req, const struct io_uring_sqe *sqe); +int io_prep_write_meta(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_read(struct io_kiocb *req, unsigned int issue_flags); int io_write(struct io_kiocb *req, unsigned int issue_flags); +int io_rw_meta(struct io_kiocb *req, unsigned int issue_flags); void io_readv_writev_cleanup(struct io_kiocb *req); void io_rw_fail(struct io_kiocb *req); void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts); From patchwork Thu Apr 25 18:39:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchan Joshi X-Patchwork-Id: 13643653 Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) (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 43A1C14EC6D for ; 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Fri, 26 Apr 2024 03:47:08 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184706epsmtip103cfb1eb0a27f8948c2292d55253d0a5~JmlXL-eNj0041100411epsmtip1r; Thu, 25 Apr 2024 18:47:06 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Kanchan Joshi , Anuj Gupta Subject: [PATCH 09/10] block: add support to send meta buffer Date: Fri, 26 Apr 2024 00:09:42 +0530 Message-Id: <20240425183943.6319-10-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrAJsWRmVeSWpSXmKPExsWy7bCmlq7uUq00g1lLmC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKOy bTJSE1NSixRS85LzUzLz0m2VvIPjneNNzQwMdQ0tLcyVFPISc1NtlVx8AnTdMnOArlZSKEvM KQUKBSQWFyvp29kU5ZeWpCpk5BeX2CqlFqTkFJgU6BUn5haX5qXr5aWWWBkaGBiZAhUmZGe8 f3+eqeCNesWB81UNjIsVuhg5OSQETCQOH5rE2sXIxSEksJtR4uWOq0wQzidGiW1TGthAqoQE vjFKfLmbDNMxf/d3qKK9jBJNG0+xQDifGSV+n9zB3MXIwcEmoClxYXIpSIOIQIrEq3WvGUFq mAWeMkrs+XqTCaRGWMBWYuVrJ5AaFgFViUPXp7OD2LwCFhJXfn5nh1gmLzHzEoTNCRSffPE0 VI2gxMmZT1hAbGagmuats5lB5ksIrOSQaDl2kRmi2UViRftxVghbWOLV8S1QQ6UkXva3QdnJ EpdmnmOCsEskHu85CGXbS7Se6gf7hRnol/W79CF28Un0/n4Cdr6EAK9ER5sQRLWixL1JT6E2 iUs8nLEEyvaQmHr0GTskeLoZJVZcvss0gVF+FpIXZiF5YRbCtgWMzKsYJVMLinPTU4tNC4zz Usvh0Zqcn7uJEZx0tbx3MD568EHvECMTB+MhRgkOZiUR3psfNdKEeFMSK6tSi/Lji0pzUosP MZoCw3gis5Rocj4w7eeVxBuaWBqYmJmZmVgamxkqifO+bp2bIiSQnliSmp2aWpBaBNPHxMEp 1cBkcio07/EdY9PK8nmeVWfiu+2OOup82qZn+WLnXqb+tjN9AqaqkpZ+wXVHr6m4bZCtu3uh 8aHvr5Xm53ONZ4dt9Vq20X/pHjbrbEeN605Su24xlsvpfgupjxVO2SU6u/GvwONCtQ+Jk3Ol nyo++WBz4EST/pnubV0sq63amH99jtFP3Ft73u9iS2w6Z/yFkJmbLZTYuhsb7ducNzNsX26w ikP/u4GK6/37AYdjjqooP/YuWPRmymytGW+vWcR7dqp29CiG/V4c/6Z3h6bn+RC98t8Fi7Uc Kg+k7wjUjYnrt94gOvt7ramEvspsgXLO+6KLZy/+esZKY833KddUdKsqC68GvTn+ZalE4+sN z5RYijMSDbWYi4oTAXv9jUBDBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrMLMWRmVeSWpSXmKPExsWy7bCSnK7OUq00g73bxCyaJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mt6/P89U8Ea94sD5qgbGxQpdjJwcEgImEvN3f2cCsYUEdjNK3HhqAhEX l2i+9oMdwhaWWPnvOZDNBVTzkVHiQM8s1i5GDg42AU2JC5NLQWpEBLIk9vZfAathFnjLKLFt 6Uo2kBphAVuJla+dQGpYBFQlDl2fDjaTV8BC4srP71Dz5SVmXoKwOYHiky+eZoe4x1xi6ppF jBD1ghInZz5hAbGZgeqbt85mnsAoMAtJahaS1AJGplWMkqkFxbnpucmGBYZ5qeV6xYm5xaV5 6XrJ+bmbGMHxoqWxg/He/H96hxiZOBgPMUpwMCuJ8N78qJEmxJuSWFmVWpQfX1Sak1p8iFGa g0VJnNdwxuwUIYH0xJLU7NTUgtQimCwTB6dUA5OPb//e2uPRDhPOq+rMN0pmKv1zka/3RVLn Pt/PHb+e/tvNuFJnQ++TZSLlDw4J5k3xSjTUDra/bTDp3EnXVvfV7SG6cff8ub9d2PPh64PA r6vMGphntZ2eZDRJ+IRiqKQa89xHyfWLkt3fnPzw8vrnRTN23/DlfxlcvvsDj9faipBzH/T/ /vnW4p3uyVH2VozlpBrDwSeRu/62lW9+oGBwzabl2K0pF6fMUC/W25pzZWZUYsbMpkypTs8Y 77k3piqdMoyyzGI/Weks3XxCbX7JKusVj6o2antHVpxbUxp4W07+OPe52tNsket2chk13Xp8 xd6m7xiHq8bbv9Z75u/4zcYWJR4XO3nzmcbLCa+UWIozEg21mIuKEwFRqecdBgMAAA== X-CMS-MailID: 20240425184708epcas5p4f1d95cd8d285614f712868d205a23115 X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184708epcas5p4f1d95cd8d285614f712868d205a23115 References: <20240425183943.6319-1-joshi.k@samsung.com> If iocb contains the meta, extract that and prepare the bip. Extend bip so that can it can carry three new integrity-check flags and application tag. Make sure that ->prepare_fn and ->complete_fn are skipped for user-owned meta buffer. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 31 ++++++++++++++++++++++++++++++- block/fops.c | 9 +++++++++ block/t10-pi.c | 6 ++++++ include/linux/bio.h | 10 ++++++++++ 4 files changed, 55 insertions(+), 1 deletion(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index 1085cf45f51e..dab76fd73813 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -11,7 +11,7 @@ #include #include #include -#include +#include #include "blk.h" static struct kmem_cache *bip_slab; @@ -318,6 +318,35 @@ static unsigned int bvec_from_pages(struct bio_vec *bvec, struct page **pages, return nr_bvecs; } +int bio_integrity_map_iter(struct bio *bio, struct uio_meta *meta) +{ + struct blk_integrity *bi = blk_get_integrity(bio->bi_bdev->bd_disk); + u16 bip_flags = 0; + int ret; + + if (!bi) + return -EINVAL; + + if (meta->iter.count < bio_integrity_bytes(bi, bio_sectors(bio))) + return -EINVAL; + + ret = bio_integrity_map_user(bio, &meta->iter, 0); + if (!ret) { + struct bio_integrity_payload *bip = bio_integrity(bio); + + if (meta->flags & META_CHK_GUARD) + bip_flags |= BIP_USER_CHK_GUARD; + if (meta->flags & META_CHK_APPTAG) + bip_flags |= BIP_USER_CHK_APPTAG; + if (meta->flags & META_CHK_REFTAG) + bip_flags |= BIP_USER_CHK_REFTAG; + + bip->bip_flags |= bip_flags; + bip->apptag = meta->apptag; + } + return ret; +} + int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter, u32 seed) { diff --git a/block/fops.c b/block/fops.c index 679d9b752fe8..e488fa66dd60 100644 --- a/block/fops.c +++ b/block/fops.c @@ -353,6 +353,15 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb, task_io_account_write(bio->bi_iter.bi_size); } + if (unlikely(iocb->ki_flags & IOCB_USE_META)) { + ret = bio_integrity_map_iter(bio, iocb->private); + WRITE_ONCE(iocb->private, NULL); + if (unlikely(ret)) { + bio_put(bio); + return ret; + } + } + if (iocb->ki_flags & IOCB_NOWAIT) bio->bi_opf |= REQ_NOWAIT; diff --git a/block/t10-pi.c b/block/t10-pi.c index d90892fd6f2a..72d1522417a1 100644 --- a/block/t10-pi.c +++ b/block/t10-pi.c @@ -156,6 +156,8 @@ static void t10_pi_type1_prepare(struct request *rq) /* Already remapped? */ if (bip->bip_flags & BIP_MAPPED_INTEGRITY) break; + if (bip->bip_flags & BIP_INTEGRITY_USER) + break; bip_for_each_vec(iv, bip, iter) { unsigned int j; @@ -205,6 +207,8 @@ static void t10_pi_type1_complete(struct request *rq, unsigned int nr_bytes) struct bio_vec iv; struct bvec_iter iter; + if (bip->bip_flags & BIP_INTEGRITY_USER) + break; bip_for_each_vec(iv, bip, iter) { unsigned int j; void *p; @@ -408,6 +412,8 @@ static void ext_pi_type1_prepare(struct request *rq) /* Already remapped? */ if (bip->bip_flags & BIP_MAPPED_INTEGRITY) break; + if (bip->bip_flags & BIP_INTEGRITY_USER) + break; bip_for_each_vec(iv, bip, iter) { unsigned int j; diff --git a/include/linux/bio.h b/include/linux/bio.h index 0281b356935a..8724305bce62 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -329,6 +329,9 @@ enum bip_flags { BIP_IP_CHECKSUM = 1 << 4, /* IP checksum */ BIP_INTEGRITY_USER = 1 << 5, /* Integrity payload is user address */ BIP_COPY_USER = 1 << 6, /* Kernel bounce buffer in use */ + BIP_USER_CHK_GUARD = 1 << 7, + BIP_USER_CHK_APPTAG = 1 << 8, + BIP_USER_CHK_REFTAG = 1 << 9, }; struct uio_meta { @@ -348,6 +351,7 @@ struct bio_integrity_payload { unsigned short bip_vcnt; /* # of integrity bio_vecs */ unsigned short bip_max_vcnt; /* integrity bio_vec slots */ unsigned short bip_flags; /* control flags */ + u16 apptag; /* apptag */ struct bvec_iter bio_iter; /* for rewinding parent bio */ @@ -729,6 +733,7 @@ static inline bool bioset_initialized(struct bio_set *bs) for_each_bio(_bio) \ bip_for_each_vec(_bvl, _bio->bi_integrity, _iter) +int bio_integrity_map_iter(struct bio *bio, struct uio_meta *meta); int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter, u32 seed); extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int); extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int); @@ -808,6 +813,11 @@ static inline int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter, return -EINVAL; } +static inline int bio_integrity_map_iter(struct bio *bio, struct uio_meta *meta) +{ + return -EINVAL; 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Fri, 26 Apr 2024 03:47:10 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPA id 20240425184710epcas5p2968bbc40ed10d1f0184bb511af054fcb~Jmla3wUSC1896318963epcas5p2H; Thu, 25 Apr 2024 18:47:10 +0000 (GMT) Received: from epsmgmc1p1new.samsung.com (unknown [182.195.42.40]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240425184710epsmtrp2407dc1e395edbb139ed2fd6ca97458fa~Jmla3B_-P0377403774epsmtrp2G; Thu, 25 Apr 2024 18:47:10 +0000 (GMT) X-AuditID: b6c32a50-ccbff70000004be7-d8-662aa52ef286 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmc1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 0D.F0.07541.E25AA266; Fri, 26 Apr 2024 03:47:10 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184708epsmtip15a805bc42cf84a83e5c58dc63dbc8ef4~JmlZIg4mQ3266832668epsmtip17; Thu, 25 Apr 2024 18:47:08 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Kanchan Joshi Subject: [PATCH 10/10] nvme: add separate handling for user integrity buffer Date: Fri, 26 Apr 2024 00:09:43 +0530 Message-Id: <20240425183943.6319-11-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrLJsWRmVeSWpSXmKPExsWy7bCmpq7eUq00g/2ztSzmrNrGaLH6bj+b xevDnxgtXs1Yy2Zx88BOJouVq48yWbxrPcdicfT/WzaLSYeuMVrsvaVtMX/ZU3aL5cf/MTnw eFybMZHFY+esu+wel8+Wemxa1cnmsXlJvcfumw1sHh+f3mLx6NuyitHj8ya5AM6obJuM1MSU 1CKF1Lzk/JTMvHRbJe/geOd4UzMDQ11DSwtzJYW8xNxUWyUXnwBdt8wcoIOVFMoSc0qBQgGJ xcVK+nY2RfmlJakKGfnFJbZKqQUpOQUmBXrFibnFpXnpenmpJVaGBgZGpkCFCdkZfyZ2MRY8 FK6Yc2sTWwPjZIEuRk4OCQETiXP7P7J1MXJxCAnsYZR4sb6DFSQhJPCJUWLj11iIxDdGib6T 19i7GDnAOtZsjIeI72WUeHjnPyuE85lRonnXZUaQIjYBTYkLk0tBBokIpEi8WveaEaSGWeAA o8Si50/YQBLCAj4SLyfeBLNZBFQl9n1rYAGxeQUsJHYv7WOHOE9eYual72A2J1B88sXT7BA1 ghInZz4Bq2cGqmneOpsZZIGEwEoOidbVu1ggml0kNn09xAxhC0u8Or4FaqiUxOd3e9kg7GSJ SzPPMUHYJRKP9xyEsu0lWk/1M4M8wwz0zPpd+hC7+CR6fz9hggQEr0RHmxBEtaLEvUlPWSFs cYmHM5ZA2R4Ss6ccYoaETzejxPn7a5gmMMrPQvLCLCQvzELYtoCReRWjVGpBcW56arJpgaFu Xmo5PGKT83M3MYLTrVbADsbVG/7qHWJk4mA8xCjBwawkwnvzo0aaEG9KYmVValF+fFFpTmrx IUZTYCBPZJYSTc4HJvy8knhDE0sDEzMzMxNLYzNDJXHe161zU4QE0hNLUrNTUwtSi2D6mDg4 pRqY9DPeeDP3vPSua75ytS89+0kAt+AF/djsn172XYrtrz9d/221rVl8xSKnsn2bFPy09BfN ca8paYg7Ihs4SbHX8cW7VS45H5VFzdkltM/17rz56q8ej3zCf6ayncK1ZSf6Ai367MQtsuyO mR53Md0dnHr75N6X685mf7l49GV0bErkVINpaWqxLJEH37sxzReq4LAO5H6beIPHZ1kbp+CH 2QseyUktN51oEdUfedHTJqSjWq+Lu3dtw+c9i9bYPHmwaVZSx42aV+Ly27Y89v+j/X6qj9eH OI3M1UcMDf8x3ReLlzhw6IhU3S41o50aTY/sJSs3c2a6XE9ra4uaJXq1/eIHdy8Vfq/p2ivK A5VYijMSDbWYi4oTAQKnYllABAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrALMWRmVeSWpSXmKPExsWy7bCSnK7eUq00g9Y5QhZzVm1jtFh9t5/N 4vXhT4wWr2asZbO4eWAnk8XK1UeZLN61nmOxOPr/LZvFpEPXGC323tK2mL/sKbvF8uP/mBx4 PK7NmMjisXPWXXaPy2dLPTat6mTz2Lyk3mP3zQY2j49Pb7F49G1ZxejxeZNcAGcUl01Kak5m WWqRvl0CV8afiV2MBQ+FK+bc2sTWwDhZoIuRg0NCwERizcb4LkYuDiGB3YwSd24sY+pi5ASK i0s0X/vBDmELS6z895wdougjo8TG0++YQJrZBDQlLkwuBakREciS2Nt/BayGWeAEo8Sh+YfB moUFfCReTrzJBmKzCKhK7PvWwAJi8wpYSOxe2ge1QF5i5qXvYDYnUHzyxdNgtpCAucTUNYsY IeoFJU7OfALWywxU37x1NvMERoFZSFKzkKQWMDKtYpRMLSjOTc9NNiwwzEst1ytOzC0uzUvX S87P3cQIjhQtjR2M9+b/0zvEyMTBeIhRgoNZSYT35keNNCHelMTKqtSi/Pii0pzU4kOM0hws SuK8hjNmpwgJpCeWpGanphakFsFkmTg4pRqYOF5Yb3Geby+3VH7txwYHkW1a5Y8qmQs2H7P4 vZVH9fxeoaX3d/D+Mpm8+Oj3LmmBrLW90zRccxMOL30x+89rqUufnzUscL/dsHOK6lPLUN+b gRra27te7J+995+srM+S5U+NPDqEJp7m+ii46tGf0Of1tZ4CB75o2627ajrz+8UfyXveSlz3 XFB9zTc9yFBFtuGChPDqX2E2RSfYn2R7HGtlF3L43MLzXfBzI8fP/B2yKaVnbOe2TXt1ZNrV DZvZhDauXrm7mmPdtt0Wd+ar6q658y1eOtxfOfDuwUCr8E2q7YamW+7dmpCw7t+XJoP3dfsy /bfusNDdUe8/N8CV75r3dS0BW9s/OQtfrq1VclNiKc5INNRiLipOBADpcb0jAwMAAA== X-CMS-MailID: 20240425184710epcas5p2968bbc40ed10d1f0184bb511af054fcb X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184710epcas5p2968bbc40ed10d1f0184bb511af054fcb References: <20240425183943.6319-1-joshi.k@samsung.com> For user provided integrity buffer, convert bip flags (guard/reftag/apptag checks) to protocol specific flags. Also pass apptag and reftag down. Signed-off-by: Kanchan Joshi --- drivers/nvme/host/core.c | 36 +++++++++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 27281a9a8951..3b719be4eedb 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -886,6 +886,13 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req, return BLK_STS_OK; } +static void nvme_set_app_tag(struct nvme_command *cmnd, u16 apptag) +{ + cmnd->rw.apptag = cpu_to_le16(apptag); + /* use 0xfff as mask so that apptag is used in entirety*/ + cmnd->rw.appmask = cpu_to_le16(0xffff); +} + static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd, struct request *req) { @@ -943,6 +950,25 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns, return BLK_STS_OK; } +static inline void nvme_setup_user_integrity(struct nvme_ns *ns, + struct request *req, struct nvme_command *cmnd, + u16 *control) +{ + struct bio_integrity_payload *bip = bio_integrity(req->bio); + unsigned short bip_flags = bip->bip_flags; + + if (bip_flags & BIP_USER_CHK_GUARD) + *control |= NVME_RW_PRINFO_PRCHK_GUARD; + if (bip_flags & BIP_USER_CHK_REFTAG) { + *control |= NVME_RW_PRINFO_PRCHK_REF; + nvme_set_ref_tag(ns, cmnd, req); + } + if (bip_flags & BIP_USER_CHK_APPTAG) { + *control |= NVME_RW_PRINFO_PRCHK_APP; + nvme_set_app_tag(cmnd, bip->apptag); + } +} + static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, struct request *req, struct nvme_command *cmnd, enum nvme_opcode op) @@ -983,6 +1009,14 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, if (WARN_ON_ONCE(!nvme_ns_has_pi(ns->head))) return BLK_STS_NOTSUPP; control |= NVME_RW_PRINFO_PRACT; + } else { + /* process user-created integrity */ + if (bio_integrity(req->bio)->bip_flags & + BIP_INTEGRITY_USER) { + nvme_setup_user_integrity(ns, req, cmnd, + &control); + goto out; + } } switch (ns->head->pi_type) { @@ -999,7 +1033,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, break; } } - +out: cmnd->rw.control = cpu_to_le16(control); cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt); return 0;