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nvme_ns_cmd.c (248913) nvme_ns_cmd.c (248977)
1/*-
2 * Copyright (C) 2012 Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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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
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*-
2 * Copyright (C) 2012 Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

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
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/nvme/nvme_ns_cmd.c 248913 2013-03-29 20:34:28Z jimharris $");
28__FBSDID("$FreeBSD: head/sys/dev/nvme/nvme_ns_cmd.c 248977 2013-04-01 16:23:34Z jimharris $");
29
30#include "nvme_private.h"
31
32int
33nvme_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)
35{
36 struct nvme_request *req;

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49 cmd->cdw12 = lba_count-1;
50
51 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
52
53 return (0);
54}
55
56int
29
30#include "nvme_private.h"
31
32int
33nvme_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)
35{
36 struct nvme_request *req;

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49 cmd->cdw12 = lba_count-1;
50
51 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
52
53 return (0);
54}
55
56int
57nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
58 nvme_cb_fn_t cb_fn, void *cb_arg)
59{
60 struct nvme_request *req;
61 struct nvme_command *cmd;
62 uint64_t lba;
63 uint64_t lba_count;
64
65 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
66
67 if (req == NULL)
68 return (ENOMEM);
69 cmd = &req->cmd;
70 cmd->opc = NVME_OPC_READ;
71 cmd->nsid = ns->id;
72
73 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
74 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
75
76 /* TODO: create a read command data structure */
77 *(uint64_t *)&cmd->cdw10 = lba;
78 cmd->cdw12 = lba_count-1;
79
80 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
81
82 return (0);
83}
84
85int
57nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
58 uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg)
59{
60 struct nvme_request *req;
61 struct nvme_command *cmd;
62
63 req = nvme_allocate_request_vaddr(payload, lba_count*512, cb_fn,
64 cb_arg);

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75 cmd->cdw12 = lba_count-1;
76
77 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
78
79 return (0);
80}
81
82int
86nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload, uint64_t lba,
87 uint32_t lba_count, nvme_cb_fn_t cb_fn, void *cb_arg)
88{
89 struct nvme_request *req;
90 struct nvme_command *cmd;
91
92 req = nvme_allocate_request_vaddr(payload, lba_count*512, cb_fn,
93 cb_arg);

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104 cmd->cdw12 = lba_count-1;
105
106 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
107
108 return (0);
109}
110
111int
112nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
113 nvme_cb_fn_t cb_fn, void *cb_arg)
114{
115 struct nvme_request *req;
116 struct nvme_command *cmd;
117 uint64_t lba;
118 uint64_t lba_count;
119
120 req = nvme_allocate_request_bio(bp, cb_fn, cb_arg);
121
122 if (req == NULL)
123 return (ENOMEM);
124 cmd = &req->cmd;
125 cmd->opc = NVME_OPC_WRITE;
126 cmd->nsid = ns->id;
127
128 lba = bp->bio_offset / nvme_ns_get_sector_size(ns);
129 lba_count = bp->bio_bcount / nvme_ns_get_sector_size(ns);
130
131 /* TODO: create a write command data structure */
132 *(uint64_t *)&cmd->cdw10 = lba;
133 cmd->cdw12 = lba_count-1;
134
135 nvme_ctrlr_submit_io_request(ns->ctrlr, req);
136
137 return (0);
138}
139
140int
83nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
84 uint8_t num_ranges, nvme_cb_fn_t cb_fn, void *cb_arg)
85{
86 struct nvme_request *req;
87 struct nvme_command *cmd;
88
89 req = nvme_allocate_request_vaddr(payload,
90 num_ranges * sizeof(struct nvme_dsm_range), cb_fn, cb_arg);

--- 36 unchanged lines hidden --- 		141nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
142 uint8_t num_ranges, nvme_cb_fn_t cb_fn, void *cb_arg)
143{
144 struct nvme_request *req;
145 struct nvme_command *cmd;
146
147 req = nvme_allocate_request_vaddr(payload,
148 num_ranges * sizeof(struct nvme_dsm_range), cb_fn, cb_arg);

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