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;
37 struct nvme_command *cmd;
39 req = nvme_allocate_request_vaddr(payload,
40 lba_count*nvme_ns_get_sector_size(ns), cb_fn, cb_arg);
45 cmd->opc = NVME_OPC_READ;
48 /* TODO: create a read command data structure */
49 *(uint64_t *)&cmd->cdw10 = lba;
50 cmd->cdw12 = lba_count-1;
52 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
58 nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
59 nvme_cb_fn_t cb_fn, void *cb_arg)
61 struct nvme_request *req;
62 struct nvme_command *cmd;
66 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
71 cmd->opc = NVME_OPC_READ;
74 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
75 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
77 /* TODO: create a read command data structure */
78 *(uint64_t *)&cmd->cdw10 = lba;
79 cmd->cdw12 = lba_count-1;
81 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
87 nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
88 uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg)
90 struct nvme_request *req;
91 struct nvme_command *cmd;
93 req = nvme_allocate_request_vaddr(payload,
94 lba_count*nvme_ns_get_sector_size(ns), cb_fn, cb_arg);
100 cmd->opc = NVME_OPC_WRITE;
103 /* TODO: create a write command data structure */
104 *(uint64_t *)&cmd->cdw10 = lba;
105 cmd->cdw12 = lba_count-1;
107 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
113 nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
114 nvme_cb_fn_t cb_fn, void *cb_arg)
116 struct nvme_request *req;
117 struct nvme_command *cmd;
121 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
126 cmd->opc = NVME_OPC_WRITE;
129 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
130 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
132 /* TODO: create a write command data structure */
133 *(uint64_t *)&cmd->cdw10 = lba;
134 cmd->cdw12 = lba_count-1;
136 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
142 nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
143 uint8_t num_ranges, nvme_cb_fn_t cb_fn, void *cb_arg)
145 struct nvme_request *req;
146 struct nvme_command *cmd;
148 req = nvme_allocate_request_vaddr(payload,
149 num_ranges * sizeof(struct nvme_dsm_range), cb_fn, cb_arg);
155 cmd->opc = NVME_OPC_DATASET_MANAGEMENT;
158 /* TODO: create a delete command data structure */
159 cmd->cdw10 = num_ranges - 1;
160 cmd->cdw11 = NVME_DSM_ATTR_DEALLOCATE;
162 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
168 nvme_ns_cmd_flush(struct nvme_namespace *ns, nvme_cb_fn_t cb_fn, void *cb_arg)
170 struct nvme_request *req;
171 struct nvme_command *cmd;
173 req = nvme_allocate_request_null(cb_fn, cb_arg);
179 cmd->opc = NVME_OPC_FLUSH;
182 nvme_ctrlr_submit_io_request(ns->ctrlr, req);