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Wed, 16 Oct 2024 11:37:55 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20241016113755epsmtrp15b225a1884e9c64c9f4e76452b15d6d7~_6_TUzQX60254402544epsmtrp1x; Wed, 16 Oct 2024 11:37:55 +0000 (GMT) X-AuditID: b6c32a50-cb1f8700000049f7-82-670fb37c9fa0 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id 40.78.08227.295AF076; Wed, 16 Oct 2024 20:37:54 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20241016113752epsmtip19c5aa77a3fa0dd1f65f9f54ac12acc52~_6_RRY3Th2875928759epsmtip1K; Wed, 16 Oct 2024 11:37:52 +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, 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, vishak.g@samsung.com, Kanchan Joshi , Anuj Gupta Subject: [PATCH v4 10/11] nvme: add support for passing on the application tag Date: Wed, 16 Oct 2024 16:59:11 +0530 Message-Id: <20241016112912.63542-11-anuj20.g@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241016112912.63542-1-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+NgFjrBJsWRmVeSWpSXmKPExsWy7bCmhm7NZv50gyedwhYfv/5msWia8JfZ Ys6qbYwWq+/2s1ncPLCTyWLl6qNMFu9az7FYHP3/ls1i0qFrjBbbzyxltth7S9ti/rKn7Bbd 13ewWSw//o/J4vysOewO/B47Z91l97h8ttRj06pONo/NS+o9dt9sYPP4+PQWi0ffllWMHptP V3t83iQXwBmVbZORmpiSWqSQmpecn5KZl26r5B0c7xxvamZgqGtoaWGupJCXmJtqq+TiE6Dr lpkDdL6SQlliTilQKCCxuFhJ386mKL+0JFUhI7+4xFYptSAlp8CkQK84Mbe4NC9dLy+1xMrQ wMDIFKgwITvj1YrTTAU3uSr2XdvA3MD4haOLkZNDQsBEYt3l90wgtpDAHkaJ4/+SIOxPjBKz p1p1MXIB2d8YJTYencQK09CweAcjRNFeRonGJ/YQRZ8ZJc4eOweWYBNQlzjyvBXMFhGYxCjx /HIoSBGzwHtGiWXPZoElhAUCJHY9/AA2lUVAVeLW/1vsIDavgJXEr33/mCG2yUvMvPQdLM4J FD917iBUjaDEyZlPWEBsZqCa5q2zmUEWSAjs4JDYfmUBG0Szi8TB3degbGGJV8e3sEPYUhIv +9ug7HSJH5efMkHYBRLNx/YxQtj2Eq2n+oGGcgAt0JRYv0sfIiwrMfXUOiaIvXwSvb+fQLXy SuyYB2MrSbSvnANlS0jsPdcAZXtIdK7eyQwJrV5Gid3zJjJNYFSYheSfWUj+mYWwegEj8ypG qdSC4tz01GTTAkPdvNRyeCwn5+duYgQnaa2AHYyrN/zVO8TIxMF4iFGCg1lJhHdSF2+6EG9K YmVValF+fFFpTmrxIUZTYIhPZJYSTc4H5om8knhDE0sDEzMzMxNLYzNDJXHe161zU4QE0hNL UrNTUwtSi2D6mDg4pRqYZgY4vmCWjKtctE75zhlvu0ffb994HvT05xI///o30v0sK73q7i9Q by3r7TULeaX8bvKpA+7xLHuNFdkYqv7J+q7znX/697PVwfYqBkZPb1jzFQpElz/0jj4h6bGg nKVTeMoivn/brx/hXfZK43HX73O7gvfEHnE/83W+kH+x+AvhSTwqYrPqVt1+8axgzQPetd9i S1xdQkt5krUZJrb6xIht4o6d8dI/oGNvDuNRBlbxF2d9MwoaXwr6fBNZtaXI/8k7ro/b79pH JD8o3S6RZt+rcLxX0umJyTIzhcDZE538iyJm9s530N3Zc8NLaqaZXeXPmdL/xV7VH9ygsjEs xGPnRk6v5BXd3416l3YpsRRnJBpqMRcVJwIARXlNilsEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpgkeLIzCtJLcpLzFFi42LZdlhJTnfSUv50g6NfzSw+fv3NYtE04S+z xZxV2xgtVt/tZ7O4eWAnk8XK1UeZLN61nmOxOPr/LZvFpEPXGC22n1nKbLH3lrbF/GVP2S26 r+9gs1h+/B+TxflZc9gd+D12zrrL7nH5bKnHplWdbB6bl9R77L7ZwObx8ektFo++LasYPTaf rvb4vEkugDOKyyYlNSezLLVI3y6BK+PVitNMBTe5KvZd28DcwPiFo4uRk0NCwESiYfEOxi5G Lg4hgd2MErMub2KESEhInHq5DMoWllj57zk7RNFHRol5M96CJdgE1CWOPG8F6xYRmMUocXjW fCaQBLPAd0aJf93OILawgJ/E8TNbweIsAqoSt/7fYgexeQWsJH7t+8cMsUFeYual72BxTqD4 qXMHwWwhAUuJf5M/MELUC0qcnPmEBWK+vETz1tnMExiBtiKkZiFJLWBkWsUomVpQnJueW2xY YJSXWq5XnJhbXJqXrpecn7uJERxJWlo7GPes+qB3iJGJg/EQowQHs5II76Qu3nQh3pTEyqrU ovz4otKc1OJDjNIcLErivN9e96YICaQnlqRmp6YWpBbBZJk4OKUamJRKA82Kn6vOe91bcv1u TuuK93enRpVvYc9/vWyvdoyfRZ1l0Nn/p67Y6DzvCnPOXZKroXjp8FvBBVdvf5iUWGzR1pPH /GHvi+rX6Vr3ThT8YNdUyuljfu++T0+i6J7EsmWpzf+1l3IYKfHwz97HJZd/19ti/ZdV90yy y687RK4qTVS4LpLnwfHQbOlarxVTTrtcTpdpqbHpL5v4yP47kyhDeaFtuI/8zUtxbsaPp52K naD8t8qhTJqDJ+sD39TTi2ZM9oq+p33jvglDa6clr4O16JcPFfH8SW7Pc51/ZtmaPOFKenl0 5RPWv0fX7uF8bOkoeja1J3mml8h318LwqBm6p7+H7fr+MHz2zCVLlViKMxINtZiLihMBKwjv MhMDAAA= X-CMS-MailID: 20241016113755epcas5p2d563b183a9f4e19f5c02d73255282342 X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20241016113755epcas5p2d563b183a9f4e19f5c02d73255282342 References: <20241016112912.63542-1-anuj20.g@samsung.com> From: Kanchan Joshi With user integrity buffer, there is a way to specify the app_tag. Set the corresponding protocol specific flags and send the app_tag down. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi Reviewed-by: Christoph Hellwig --- drivers/nvme/host/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 211f44cc02a3..c7ba264504b5 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -872,6 +872,12 @@ 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 request *req, struct nvme_command *cmnd) +{ + cmnd->rw.lbat = cpu_to_le16(bio_integrity(req->bio)->app_tag); + cmnd->rw.lbatm = cpu_to_le16(0xffff); +} + static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd, struct request *req) { @@ -1012,6 +1018,10 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, control |= NVME_RW_APPEND_PIREMAP; nvme_set_ref_tag(ns, cmnd, req); } + if (bio_integrity_flagged(req->bio, BIP_CHECK_APPTAG)) { + control |= NVME_RW_PRINFO_PRCHK_APP; + nvme_set_app_tag(req, cmnd); + } } cmnd->rw.control = cpu_to_le16(control);