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Fri, 7 Apr 2023 20:06:17 GMT Received: from pps.reinject (localhost [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3pptjxeets-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 07 Apr 2023 20:06:17 +0000 Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 337K5tr8010228; Fri, 7 Apr 2023 20:06:16 GMT Received: from mnchrist-mac.us.oracle.com (dhcp-10-154-128-1.vpn.oracle.com [10.154.128.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3pptjxeeam-9; Fri, 07 Apr 2023 20:06:16 +0000 From: Mike Christie To: bvanassche@acm.org, hch@lst.de, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, james.bottomley@hansenpartnership.com, linux-block@vger.kernel.org, dm-devel@redhat.com, snitzer@kernel.org, axboe@kernel.dk, linux-nvme@lists.infradead.org, chaitanyak@nvidia.com, kbusch@kernel.org, target-devel@vger.kernel.org Date: Fri, 7 Apr 2023 15:05:41 -0500 Message-Id: <20230407200551.12660-9-michael.christie@oracle.com> In-Reply-To: <20230407200551.12660-1-michael.christie@oracle.com> References: <20230407200551.12660-1-michael.christie@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-04-07_12,2023-04-06_03,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 adultscore=0 phishscore=0 bulkscore=0 mlxscore=0 suspectscore=0 spamscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2304070180 X-Proofpoint-GUID: YQAlA42PEOJzYd6iOv01tHwInl0fDVuz X-Proofpoint-ORIG-GUID: YQAlA42PEOJzYd6iOv01tHwInl0fDVuz X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 X-Mailman-Approved-At: Tue, 11 Apr 2023 06:44:09 +0000 Subject: [dm-devel] [PATCH v6 08/18] nvme: Don't hardcode the data len for pr commands X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chaitanya Kulkarni , Mike Christie Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: oracle.com Reservation Report support needs to pass in a variable sized buffer, so this patch has the pr command helpers take a data length argument. Signed-off-by: Mike Christie Reviewed-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Chaitanya Kulkarni --- drivers/nvme/host/core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 1c9129028bb5..02b39f0126af 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2082,7 +2082,7 @@ static char nvme_pr_type(enum pr_type type) } static int nvme_send_ns_head_pr_command(struct block_device *bdev, - struct nvme_command *c, u8 data[16]) + struct nvme_command *c, u8 *data, unsigned int data_len) { struct nvme_ns_head *head = bdev->bd_disk->private_data; int srcu_idx = srcu_read_lock(&head->srcu); @@ -2091,17 +2091,17 @@ static int nvme_send_ns_head_pr_command(struct block_device *bdev, if (ns) { c->common.nsid = cpu_to_le32(ns->head->ns_id); - ret = nvme_submit_sync_cmd(ns->queue, c, data, 16); + ret = nvme_submit_sync_cmd(ns->queue, c, data, data_len); } srcu_read_unlock(&head->srcu, srcu_idx); return ret; } static int nvme_send_ns_pr_command(struct nvme_ns *ns, struct nvme_command *c, - u8 data[16]) + u8 *data, unsigned int data_len) { c->common.nsid = cpu_to_le32(ns->head->ns_id); - return nvme_submit_sync_cmd(ns->queue, c, data, 16); + return nvme_submit_sync_cmd(ns->queue, c, data, data_len); } static int nvme_sc_to_pr_err(int nvme_sc) @@ -2141,10 +2141,11 @@ static int nvme_pr_command(struct block_device *bdev, u32 cdw10, if (IS_ENABLED(CONFIG_NVME_MULTIPATH) && bdev->bd_disk->fops == &nvme_ns_head_ops) - ret = nvme_send_ns_head_pr_command(bdev, &c, data); + ret = nvme_send_ns_head_pr_command(bdev, &c, data, + sizeof(data)); else ret = nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c, - data); + data, sizeof(data)); if (ret < 0) return ret;