1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "spdk/nvme_ocssd.h" 35 #include "nvme_internal.h" 36 37 bool 38 spdk_nvme_ctrlr_is_ocssd_supported(struct spdk_nvme_ctrlr *ctrlr) 39 { 40 if (ctrlr->quirks & NVME_QUIRK_OCSSD) { 41 /* TODO: There isn't a standardized way to identify Open-Channel SSD 42 * different verdors may have different conditions. 43 */ 44 45 /* 46 * Current QEMU OpenChannel Device needs to check nsdata->vs[0]. 47 * Here check nsdata->vs[0] of the first namespace. 48 */ 49 if (ctrlr->cdata.vid == SPDK_PCI_VID_CNEXLABS) { 50 if (ctrlr->num_ns && ctrlr->nsdata[0].vendor_specific[0] == 0x1) { 51 return true; 52 } 53 } 54 } 55 return false; 56 } 57 58 59 int 60 spdk_nvme_ocssd_ctrlr_cmd_geometry(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid, 61 void *payload, uint32_t payload_size, 62 spdk_nvme_cmd_cb cb_fn, void *cb_arg) 63 { 64 struct nvme_request *req; 65 struct spdk_nvme_cmd *cmd; 66 int rc; 67 68 if (!payload || (payload_size != sizeof(struct spdk_ocssd_geometry_data))) { 69 return -EINVAL; 70 } 71 72 nvme_robust_mutex_lock(&ctrlr->ctrlr_lock); 73 req = nvme_allocate_request_user_copy(ctrlr->adminq, 74 payload, payload_size, cb_fn, cb_arg, false); 75 if (req == NULL) { 76 nvme_robust_mutex_unlock(&ctrlr->ctrlr_lock); 77 return -ENOMEM; 78 } 79 80 cmd = &req->cmd; 81 cmd->opc = SPDK_OCSSD_OPC_GEOMETRY; 82 cmd->nsid = nsid; 83 84 rc = nvme_ctrlr_submit_admin_request(ctrlr, req); 85 86 nvme_robust_mutex_unlock(&ctrlr->ctrlr_lock); 87 return rc; 88 } 89