2 * Copyright (C) 2012 Intel Corporation
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "nvme_private.h"
33 nvme_ns_cmd_read(struct nvme_namespace *ns, void *payload, uint64_t lba,
34 uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg)
36 struct nvme_request *req;
38 req = nvme_allocate_request_vaddr(payload,
39 lba_count*nvme_ns_get_sector_size(ns), cb_fn, cb_arg);
44 nvme_ns_read_cmd(&req->cmd, ns->id, lba, lba_count);
46 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
52 nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
53 nvme_cb_fn_t cb_fn, void *cb_arg)
55 struct nvme_request *req;
59 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
64 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
65 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
66 nvme_ns_read_cmd(&req->cmd, ns->id, lba, lba_count);
68 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
74 nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
75 uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg)
77 struct nvme_request *req;
79 req = nvme_allocate_request_vaddr(payload,
80 lba_count*nvme_ns_get_sector_size(ns), cb_fn, cb_arg);
85 nvme_ns_write_cmd(&req->cmd, ns->id, lba, lba_count);
87 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
93 nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
94 nvme_cb_fn_t cb_fn, void *cb_arg)
96 struct nvme_request *req;
100 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
104 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
105 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
106 nvme_ns_write_cmd(&req->cmd, ns->id, lba, lba_count);
108 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
114 nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
115 uint8_t num_ranges, nvme_cb_fn_t cb_fn, void *cb_arg)
117 struct nvme_request *req;
118 struct nvme_command *cmd;
120 req = nvme_allocate_request_vaddr(payload,
121 num_ranges * sizeof(struct nvme_dsm_range), cb_fn, cb_arg);
127 cmd->opc = NVME_OPC_DATASET_MANAGEMENT;
130 /* TODO: create a delete command data structure */
131 cmd->cdw10 = num_ranges - 1;
132 cmd->cdw11 = NVME_DSM_ATTR_DEALLOCATE;
134 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
140 nvme_ns_cmd_flush(struct nvme_namespace *ns, nvme_cb_fn_t cb_fn, void *cb_arg)
142 struct nvme_request *req;
144 req = nvme_allocate_request_null(cb_fn, cb_arg);
149 nvme_ns_flush_cmd(&req->cmd, ns->id);
150 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
155 /* Timeout = 1 sec */
156 #define NVD_DUMP_TIMEOUT 200000
159 nvme_ns_dump(struct nvme_namespace *ns, void *virt, off_t offset, size_t len)
161 struct nvme_completion_poll_status status;
162 struct nvme_request *req;
163 struct nvme_command *cmd;
164 uint64_t lba, lba_count;
168 req = nvme_allocate_request_vaddr(virt, len, nvme_completion_poll_cb,
176 lba = offset / nvme_ns_get_sector_size(ns);
177 lba_count = len / nvme_ns_get_sector_size(ns);
178 nvme_ns_write_cmd(cmd, ns->id, lba, lba_count);
180 nvme_ns_flush_cmd(cmd, ns->id);
182 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
183 if (req->qpair == NULL)
187 while ((i++ < NVD_DUMP_TIMEOUT) && (status.done == FALSE)) {
189 nvme_qpair_process_completions(req->qpair);
192 if (status.done == FALSE)