root / hw / scsi-disk.c @ 380f640f
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1 | 2e5d83bb | pbrook | /*
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2 | 2e5d83bb | pbrook | * SCSI Device emulation
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3 | 2e5d83bb | pbrook | *
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4 | 2e5d83bb | pbrook | * Copyright (c) 2006 CodeSourcery.
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5 | 2e5d83bb | pbrook | * Based on code by Fabrice Bellard
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6 | 2e5d83bb | pbrook | *
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7 | 2e5d83bb | pbrook | * Written by Paul Brook
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8 | ad3cea42 | Artyom Tarasenko | * Modifications:
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9 | ad3cea42 | Artyom Tarasenko | * 2009-Dec-12 Artyom Tarasenko : implemented stamdard inquiry for the case
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10 | ad3cea42 | Artyom Tarasenko | * when the allocation length of CDB is smaller
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11 | ad3cea42 | Artyom Tarasenko | * than 36.
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12 | ad3cea42 | Artyom Tarasenko | * 2009-Oct-13 Artyom Tarasenko : implemented the block descriptor in the
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13 | ad3cea42 | Artyom Tarasenko | * MODE SENSE response.
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14 | 2e5d83bb | pbrook | *
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15 | 2e5d83bb | pbrook | * This code is licenced under the LGPL.
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16 | a917d384 | pbrook | *
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17 | a917d384 | pbrook | * Note that this file only handles the SCSI architecture model and device
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18 | 1d4db89c | balrog | * commands. Emulation of interface/link layer protocols is handled by
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19 | 1d4db89c | balrog | * the host adapter emulator.
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20 | 2e5d83bb | pbrook | */
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21 | 2e5d83bb | pbrook | |
22 | fa879c64 | aliguori | #include <qemu-common.h> |
23 | fa879c64 | aliguori | #include <sysemu.h> |
24 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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25 | 2e5d83bb | pbrook | |
26 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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27 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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28 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
29 | 2e5d83bb | pbrook | #else
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30 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
31 | 2e5d83bb | pbrook | #endif
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32 | 2e5d83bb | pbrook | |
33 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
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34 | 001faf32 | Blue Swirl | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
35 | 2e5d83bb | pbrook | |
36 | 87ecb68b | pbrook | #include "qemu-common.h" |
37 | 87ecb68b | pbrook | #include "block.h" |
38 | 43b443b6 | Gerd Hoffmann | #include "scsi.h" |
39 | 0d65e1f8 | Gerd Hoffmann | #include "scsi-defs.h" |
40 | 22864256 | blueswir1 | |
41 | f0f72ffe | aurel32 | #define SCSI_DMA_BUF_SIZE 131072 |
42 | 57575058 | balrog | #define SCSI_MAX_INQUIRY_LEN 256 |
43 | a917d384 | pbrook | |
44 | ea8a5d7f | aliguori | #define SCSI_REQ_STATUS_RETRY 0x01 |
45 | ea8a5d7f | aliguori | |
46 | d52affa7 | Gerd Hoffmann | typedef struct SCSIDiskState SCSIDiskState; |
47 | d52affa7 | Gerd Hoffmann | |
48 | 4c41d2ef | Gerd Hoffmann | typedef struct SCSIDiskReq { |
49 | 4c41d2ef | Gerd Hoffmann | SCSIRequest req; |
50 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
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51 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
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52 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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53 | e035b43d | aliguori | uint64_t sector; |
54 | e035b43d | aliguori | uint32_t sector_count; |
55 | c87c0672 | aliguori | struct iovec iov;
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56 | c87c0672 | aliguori | QEMUIOVector qiov; |
57 | ea8a5d7f | aliguori | uint32_t status; |
58 | 4c41d2ef | Gerd Hoffmann | } SCSIDiskReq; |
59 | a917d384 | pbrook | |
60 | d52affa7 | Gerd Hoffmann | struct SCSIDiskState
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61 | a917d384 | pbrook | { |
62 | d52affa7 | Gerd Hoffmann | SCSIDevice qdev; |
63 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
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64 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
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65 | a917d384 | pbrook | int cluster_size;
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66 | 274fb0e1 | aliguori | uint64_t max_lba; |
67 | 213189ab | Markus Armbruster | QEMUBH *bh; |
68 | 383b4d9b | Gerd Hoffmann | char *version;
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69 | 2e5d83bb | pbrook | }; |
70 | 2e5d83bb | pbrook | |
71 | 89b08ae1 | Gerd Hoffmann | static SCSIDiskReq *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun)
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72 | 2e5d83bb | pbrook | { |
73 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *req; |
74 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
75 | a917d384 | pbrook | |
76 | 89b08ae1 | Gerd Hoffmann | req = scsi_req_alloc(sizeof(SCSIDiskReq), d, tag, lun);
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77 | 89b08ae1 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
78 | 9af99d98 | Gerd Hoffmann | r->iov.iov_base = qemu_memalign(512, SCSI_DMA_BUF_SIZE);
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79 | a917d384 | pbrook | return r;
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80 | 2e5d83bb | pbrook | } |
81 | 2e5d83bb | pbrook | |
82 | 4c41d2ef | Gerd Hoffmann | static void scsi_remove_request(SCSIDiskReq *r) |
83 | 4d611c9a | pbrook | { |
84 | f8a83245 | Herve Poussineau | qemu_vfree(r->iov.iov_base); |
85 | 89b08ae1 | Gerd Hoffmann | scsi_req_free(&r->req); |
86 | 4d611c9a | pbrook | } |
87 | 4d611c9a | pbrook | |
88 | 4c41d2ef | Gerd Hoffmann | static SCSIDiskReq *scsi_find_request(SCSIDiskState *s, uint32_t tag)
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89 | 4d611c9a | pbrook | { |
90 | 89b08ae1 | Gerd Hoffmann | return DO_UPCAST(SCSIDiskReq, req, scsi_req_find(&s->qdev, tag));
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91 | a917d384 | pbrook | } |
92 | a917d384 | pbrook | |
93 | ed3a34a3 | Gerd Hoffmann | static void scsi_req_set_status(SCSIRequest *req, int status, int sense_code) |
94 | ed3a34a3 | Gerd Hoffmann | { |
95 | ed3a34a3 | Gerd Hoffmann | req->status = status; |
96 | ed3a34a3 | Gerd Hoffmann | scsi_dev_set_sense(req->dev, sense_code); |
97 | ed3a34a3 | Gerd Hoffmann | } |
98 | ed3a34a3 | Gerd Hoffmann | |
99 | a917d384 | pbrook | /* Helper function for command completion. */
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100 | 4c41d2ef | Gerd Hoffmann | static void scsi_command_complete(SCSIDiskReq *r, int status, int sense) |
101 | a917d384 | pbrook | { |
102 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n",
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103 | 4c41d2ef | Gerd Hoffmann | r->req.tag, status, sense); |
104 | ed3a34a3 | Gerd Hoffmann | scsi_req_set_status(&r->req, status, sense); |
105 | ed3a34a3 | Gerd Hoffmann | scsi_req_complete(&r->req); |
106 | 89b08ae1 | Gerd Hoffmann | scsi_remove_request(r); |
107 | 4d611c9a | pbrook | } |
108 | 4d611c9a | pbrook | |
109 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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110 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
111 | 4d611c9a | pbrook | { |
112 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
113 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
114 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
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115 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
116 | a917d384 | pbrook | if (r) {
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117 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
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118 | 4c41d2ef | Gerd Hoffmann | bdrv_aio_cancel(r->req.aiocb); |
119 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
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120 | a917d384 | pbrook | scsi_remove_request(r); |
121 | a917d384 | pbrook | } |
122 | a917d384 | pbrook | } |
123 | a917d384 | pbrook | |
124 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
125 | a917d384 | pbrook | { |
126 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
127 | a917d384 | pbrook | |
128 | a917d384 | pbrook | if (ret) {
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129 | a917d384 | pbrook | DPRINTF("IO error\n");
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130 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, 0);
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131 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, NO_SENSE); |
132 | 4d611c9a | pbrook | return;
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133 | 4d611c9a | pbrook | } |
134 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Data ready tag=0x%x len=%" PRId64 "\n", r->req.tag, r->iov.iov_len); |
135 | a917d384 | pbrook | |
136 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
137 | 4d611c9a | pbrook | } |
138 | 4d611c9a | pbrook | |
139 | a917d384 | pbrook | /* Read more data from scsi device into buffer. */
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140 | 8ccc2ace | ths | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
141 | 2e5d83bb | pbrook | { |
142 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
143 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
144 | 2e5d83bb | pbrook | uint32_t n; |
145 | 2e5d83bb | pbrook | |
146 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
147 | a917d384 | pbrook | if (!r) {
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148 | a917d384 | pbrook | BADF("Bad read tag 0x%x\n", tag);
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149 | b1fa7164 | blueswir1 | /* ??? This is the wrong error. */
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150 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
151 | a917d384 | pbrook | return;
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152 | 2e5d83bb | pbrook | } |
153 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
154 | 0bf9e31a | Blue Swirl | DPRINTF("Read buf_len=%" PRId64 "\n", r->iov.iov_len); |
155 | a917d384 | pbrook | r->sector_count = 0;
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156 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
157 | a917d384 | pbrook | return;
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158 | 2e5d83bb | pbrook | } |
159 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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160 | a917d384 | pbrook | if (r->sector_count == 0) { |
161 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
162 | a917d384 | pbrook | return;
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163 | 2e5d83bb | pbrook | } |
164 | 2e5d83bb | pbrook | |
165 | a917d384 | pbrook | n = r->sector_count; |
166 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
167 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
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168 | a917d384 | pbrook | |
169 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
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170 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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171 | 251882b7 | Gerd Hoffmann | r->req.aiocb = bdrv_aio_readv(s->qdev.dinfo->bdrv, r->sector, &r->qiov, n, |
172 | c87c0672 | aliguori | scsi_read_complete, r); |
173 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
174 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
175 | a917d384 | pbrook | r->sector += n; |
176 | a917d384 | pbrook | r->sector_count -= n; |
177 | 2e5d83bb | pbrook | } |
178 | 2e5d83bb | pbrook | |
179 | 4c41d2ef | Gerd Hoffmann | static int scsi_handle_write_error(SCSIDiskReq *r, int error) |
180 | ea8a5d7f | aliguori | { |
181 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
182 | f7850099 | Kevin Wolf | BlockInterfaceErrorAction action = |
183 | f7850099 | Kevin Wolf | drive_get_on_error(s->qdev.dinfo->bdrv, 0);
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184 | ea8a5d7f | aliguori | |
185 | 380f640f | Luiz Capitulino | if (action == BLOCK_ERR_IGNORE) {
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186 | 380f640f | Luiz Capitulino | bdrv_mon_event(s->qdev.dinfo->bdrv, BDRV_ACTION_IGNORE, 0);
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187 | ea8a5d7f | aliguori | return 0; |
188 | 380f640f | Luiz Capitulino | } |
189 | ea8a5d7f | aliguori | |
190 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
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191 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
192 | ea8a5d7f | aliguori | r->status |= SCSI_REQ_STATUS_RETRY; |
193 | ea8a5d7f | aliguori | vm_stop(0);
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194 | 380f640f | Luiz Capitulino | bdrv_mon_event(s->qdev.dinfo->bdrv, BDRV_ACTION_STOP, 0);
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195 | ea8a5d7f | aliguori | } else {
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196 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
197 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
198 | 380f640f | Luiz Capitulino | bdrv_mon_event(s->qdev.dinfo->bdrv, BDRV_ACTION_REPORT, 0);
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199 | ea8a5d7f | aliguori | } |
200 | ea8a5d7f | aliguori | |
201 | ea8a5d7f | aliguori | return 1; |
202 | ea8a5d7f | aliguori | } |
203 | ea8a5d7f | aliguori | |
204 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
205 | 4d611c9a | pbrook | { |
206 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
207 | a917d384 | pbrook | uint32_t len; |
208 | ea8a5d7f | aliguori | uint32_t n; |
209 | ea8a5d7f | aliguori | |
210 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
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211 | 4d611c9a | pbrook | |
212 | 4d611c9a | pbrook | if (ret) {
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213 | ea8a5d7f | aliguori | if (scsi_handle_write_error(r, -ret))
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214 | ea8a5d7f | aliguori | return;
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215 | 4d611c9a | pbrook | } |
216 | 4d611c9a | pbrook | |
217 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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218 | ea8a5d7f | aliguori | r->sector += n; |
219 | ea8a5d7f | aliguori | r->sector_count -= n; |
220 | a917d384 | pbrook | if (r->sector_count == 0) { |
221 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
222 | a917d384 | pbrook | } else {
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223 | a917d384 | pbrook | len = r->sector_count * 512;
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224 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
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225 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
226 | a917d384 | pbrook | } |
227 | c87c0672 | aliguori | r->iov.iov_len = len; |
228 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, len);
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229 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, len); |
230 | 4d611c9a | pbrook | } |
231 | 4d611c9a | pbrook | } |
232 | 4d611c9a | pbrook | |
233 | 4c41d2ef | Gerd Hoffmann | static void scsi_write_request(SCSIDiskReq *r) |
234 | ea8a5d7f | aliguori | { |
235 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
236 | ea8a5d7f | aliguori | uint32_t n; |
237 | ea8a5d7f | aliguori | |
238 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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239 | ea8a5d7f | aliguori | if (n) {
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240 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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241 | 251882b7 | Gerd Hoffmann | r->req.aiocb = bdrv_aio_writev(s->qdev.dinfo->bdrv, r->sector, &r->qiov, n, |
242 | c87c0672 | aliguori | scsi_write_complete, r); |
243 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
244 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
245 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
246 | ea8a5d7f | aliguori | } else {
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247 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
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248 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
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249 | ea8a5d7f | aliguori | } |
250 | ea8a5d7f | aliguori | } |
251 | ea8a5d7f | aliguori | |
252 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
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253 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
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254 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
255 | 2e5d83bb | pbrook | { |
256 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
257 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
258 | 2e5d83bb | pbrook | |
259 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
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260 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
261 | a917d384 | pbrook | if (!r) {
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262 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
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263 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
264 | 2e5d83bb | pbrook | return 1; |
265 | 2e5d83bb | pbrook | } |
266 | ea8a5d7f | aliguori | |
267 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
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268 | a917d384 | pbrook | BADF("Data transfer already in progress\n");
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269 | ea8a5d7f | aliguori | |
270 | ea8a5d7f | aliguori | scsi_write_request(r); |
271 | 2e5d83bb | pbrook | |
272 | a917d384 | pbrook | return 0; |
273 | a917d384 | pbrook | } |
274 | 2e5d83bb | pbrook | |
275 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
276 | ea8a5d7f | aliguori | { |
277 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
278 | 9af99d98 | Gerd Hoffmann | SCSIRequest *req; |
279 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
280 | 213189ab | Markus Armbruster | |
281 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
282 | 213189ab | Markus Armbruster | s->bh = NULL;
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283 | ea8a5d7f | aliguori | |
284 | 9af99d98 | Gerd Hoffmann | QTAILQ_FOREACH(req, &s->qdev.requests, next) { |
285 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
286 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
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287 | ea8a5d7f | aliguori | r->status &= ~SCSI_REQ_STATUS_RETRY; |
288 | ea8a5d7f | aliguori | scsi_write_request(r); |
289 | ea8a5d7f | aliguori | } |
290 | ea8a5d7f | aliguori | } |
291 | ea8a5d7f | aliguori | } |
292 | ea8a5d7f | aliguori | |
293 | 213189ab | Markus Armbruster | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
294 | 213189ab | Markus Armbruster | { |
295 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
296 | 213189ab | Markus Armbruster | |
297 | 213189ab | Markus Armbruster | if (!running)
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298 | 213189ab | Markus Armbruster | return;
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299 | 213189ab | Markus Armbruster | |
300 | 213189ab | Markus Armbruster | if (!s->bh) {
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301 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
302 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
303 | 213189ab | Markus Armbruster | } |
304 | 213189ab | Markus Armbruster | } |
305 | 213189ab | Markus Armbruster | |
306 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
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307 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
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308 | a917d384 | pbrook | { |
309 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
310 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
311 | 2e5d83bb | pbrook | |
312 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
313 | a917d384 | pbrook | if (!r) {
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314 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
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315 | a917d384 | pbrook | return NULL; |
316 | 4d611c9a | pbrook | } |
317 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
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318 | 2e5d83bb | pbrook | } |
319 | 2e5d83bb | pbrook | |
320 | 0b06c059 | Gerd Hoffmann | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
321 | 0b06c059 | Gerd Hoffmann | { |
322 | 0b06c059 | Gerd Hoffmann | BlockDriverState *bdrv = req->dev->dinfo->bdrv; |
323 | 383b4d9b | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
324 | 0b06c059 | Gerd Hoffmann | int buflen = 0; |
325 | 0b06c059 | Gerd Hoffmann | |
326 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x2) { |
327 | 0b06c059 | Gerd Hoffmann | /* Command support data - optional, not implemented */
|
328 | 0b06c059 | Gerd Hoffmann | BADF("optional INQUIRY command support request not implemented\n");
|
329 | 0b06c059 | Gerd Hoffmann | return -1; |
330 | 0b06c059 | Gerd Hoffmann | } |
331 | 0b06c059 | Gerd Hoffmann | |
332 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x1) { |
333 | 0b06c059 | Gerd Hoffmann | /* Vital product data */
|
334 | 0b06c059 | Gerd Hoffmann | uint8_t page_code = req->cmd.buf[2];
|
335 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 4) { |
336 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is "
|
337 | 0b06c059 | Gerd Hoffmann | "less than 4\n", page_code, req->cmd.xfer);
|
338 | 0b06c059 | Gerd Hoffmann | return -1; |
339 | 0b06c059 | Gerd Hoffmann | } |
340 | 0b06c059 | Gerd Hoffmann | |
341 | 0b06c059 | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) == BDRV_TYPE_CDROM) {
|
342 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 5;
|
343 | 0b06c059 | Gerd Hoffmann | } else {
|
344 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0;
|
345 | 0b06c059 | Gerd Hoffmann | } |
346 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = page_code ; // this page
|
347 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00;
|
348 | 0b06c059 | Gerd Hoffmann | |
349 | 0b06c059 | Gerd Hoffmann | switch (page_code) {
|
350 | 0b06c059 | Gerd Hoffmann | case 0x00: /* Supported page codes, mandatory */ |
351 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Supported pages] "
|
352 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
353 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 3; // number of pages |
354 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
355 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x80; // unit serial number |
356 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x83; // device identification |
357 | 0b06c059 | Gerd Hoffmann | break;
|
358 | 0b06c059 | Gerd Hoffmann | |
359 | 0b06c059 | Gerd Hoffmann | case 0x80: /* Device serial number, optional */ |
360 | 0b06c059 | Gerd Hoffmann | { |
361 | 407f879a | Blue Swirl | const char *serial = req->dev->dinfo->serial ? |
362 | 407f879a | Blue Swirl | req->dev->dinfo->serial : "0";
|
363 | 0b06c059 | Gerd Hoffmann | int l = strlen(serial);
|
364 | 0b06c059 | Gerd Hoffmann | |
365 | 0b06c059 | Gerd Hoffmann | if (l > req->cmd.xfer)
|
366 | 0b06c059 | Gerd Hoffmann | l = req->cmd.xfer; |
367 | 0b06c059 | Gerd Hoffmann | if (l > 20) |
368 | 0b06c059 | Gerd Hoffmann | l = 20;
|
369 | 0b06c059 | Gerd Hoffmann | |
370 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Serial number] "
|
371 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
372 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = l; |
373 | 0b06c059 | Gerd Hoffmann | memcpy(outbuf+buflen, serial, l); |
374 | 0b06c059 | Gerd Hoffmann | buflen += l; |
375 | 0b06c059 | Gerd Hoffmann | break;
|
376 | 0b06c059 | Gerd Hoffmann | } |
377 | 0b06c059 | Gerd Hoffmann | |
378 | 0b06c059 | Gerd Hoffmann | case 0x83: /* Device identification page, mandatory */ |
379 | 0b06c059 | Gerd Hoffmann | { |
380 | 0b06c059 | Gerd Hoffmann | int max_len = 255 - 8; |
381 | 0b06c059 | Gerd Hoffmann | int id_len = strlen(bdrv_get_device_name(bdrv));
|
382 | 0b06c059 | Gerd Hoffmann | |
383 | 0b06c059 | Gerd Hoffmann | if (id_len > max_len)
|
384 | 0b06c059 | Gerd Hoffmann | id_len = max_len; |
385 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Device identification] "
|
386 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
387 | 0b06c059 | Gerd Hoffmann | |
388 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 3 + id_len;
|
389 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x2; // ASCII |
390 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // not officially assigned |
391 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // reserved |
392 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = id_len; // length of data following
|
393 | 0b06c059 | Gerd Hoffmann | |
394 | 0b06c059 | Gerd Hoffmann | memcpy(outbuf+buflen, bdrv_get_device_name(bdrv), id_len); |
395 | 0b06c059 | Gerd Hoffmann | buflen += id_len; |
396 | 0b06c059 | Gerd Hoffmann | break;
|
397 | 0b06c059 | Gerd Hoffmann | } |
398 | 0b06c059 | Gerd Hoffmann | default:
|
399 | 0b06c059 | Gerd Hoffmann | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
400 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", page_code, req->cmd.xfer);
|
401 | 0b06c059 | Gerd Hoffmann | return -1; |
402 | 0b06c059 | Gerd Hoffmann | } |
403 | 0b06c059 | Gerd Hoffmann | /* done with EVPD */
|
404 | 0b06c059 | Gerd Hoffmann | return buflen;
|
405 | 0b06c059 | Gerd Hoffmann | } |
406 | 0b06c059 | Gerd Hoffmann | |
407 | 0b06c059 | Gerd Hoffmann | /* Standard INQUIRY data */
|
408 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[2] != 0) { |
409 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) page or code "
|
410 | 0b06c059 | Gerd Hoffmann | "is non-zero [%02X]\n", req->cmd.buf[2]); |
411 | 0b06c059 | Gerd Hoffmann | return -1; |
412 | 0b06c059 | Gerd Hoffmann | } |
413 | 0b06c059 | Gerd Hoffmann | |
414 | 0b06c059 | Gerd Hoffmann | /* PAGE CODE == 0 */
|
415 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 5) { |
416 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) buffer size %zd "
|
417 | 0b06c059 | Gerd Hoffmann | "is less than 5\n", req->cmd.xfer);
|
418 | 0b06c059 | Gerd Hoffmann | return -1; |
419 | 0b06c059 | Gerd Hoffmann | } |
420 | 0b06c059 | Gerd Hoffmann | |
421 | 0b06c059 | Gerd Hoffmann | buflen = req->cmd.xfer; |
422 | 0b06c059 | Gerd Hoffmann | if (buflen > SCSI_MAX_INQUIRY_LEN)
|
423 | 0b06c059 | Gerd Hoffmann | buflen = SCSI_MAX_INQUIRY_LEN; |
424 | 0b06c059 | Gerd Hoffmann | |
425 | 0b06c059 | Gerd Hoffmann | memset(outbuf, 0, buflen);
|
426 | 0b06c059 | Gerd Hoffmann | |
427 | 0b06c059 | Gerd Hoffmann | if (req->lun || req->cmd.buf[1] >> 5) { |
428 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0x7f; /* LUN not supported */ |
429 | 0b06c059 | Gerd Hoffmann | return buflen;
|
430 | 0b06c059 | Gerd Hoffmann | } |
431 | 0b06c059 | Gerd Hoffmann | |
432 | 0b06c059 | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) == BDRV_TYPE_CDROM) {
|
433 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 5; |
434 | 0b06c059 | Gerd Hoffmann | outbuf[1] = 0x80; |
435 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
436 | 0b06c059 | Gerd Hoffmann | } else {
|
437 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0; |
438 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
439 | 0b06c059 | Gerd Hoffmann | } |
440 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[8], "QEMU ", 8); |
441 | 383b4d9b | Gerd Hoffmann | memcpy(&outbuf[32], s->version ? s->version : QEMU_VERSION, 4); |
442 | 0b06c059 | Gerd Hoffmann | /* Identify device as SCSI-3 rev 1.
|
443 | 0b06c059 | Gerd Hoffmann | Some later commands are also implemented. */
|
444 | 0b06c059 | Gerd Hoffmann | outbuf[2] = 3; |
445 | 0b06c059 | Gerd Hoffmann | outbuf[3] = 2; /* Format 2 */ |
446 | ad3cea42 | Artyom Tarasenko | |
447 | ad3cea42 | Artyom Tarasenko | if (buflen > 36) { |
448 | ad3cea42 | Artyom Tarasenko | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
449 | ad3cea42 | Artyom Tarasenko | } else {
|
450 | ad3cea42 | Artyom Tarasenko | /* If the allocation length of CDB is too small,
|
451 | ad3cea42 | Artyom Tarasenko | the additional length is not adjusted */
|
452 | ad3cea42 | Artyom Tarasenko | outbuf[4] = 36 - 5; |
453 | ad3cea42 | Artyom Tarasenko | } |
454 | ad3cea42 | Artyom Tarasenko | |
455 | 0b06c059 | Gerd Hoffmann | /* Sync data transfer and TCQ. */
|
456 | 0b06c059 | Gerd Hoffmann | outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0); |
457 | 0b06c059 | Gerd Hoffmann | return buflen;
|
458 | 0b06c059 | Gerd Hoffmann | } |
459 | 0b06c059 | Gerd Hoffmann | |
460 | ebddfcbe | Gerd Hoffmann | static int mode_sense_page(SCSIRequest *req, int page, uint8_t *p) |
461 | ebddfcbe | Gerd Hoffmann | { |
462 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
463 | ebddfcbe | Gerd Hoffmann | BlockDriverState *bdrv = req->dev->dinfo->bdrv; |
464 | ebddfcbe | Gerd Hoffmann | int cylinders, heads, secs;
|
465 | ebddfcbe | Gerd Hoffmann | |
466 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
467 | ebddfcbe | Gerd Hoffmann | case 4: /* Rigid disk device geometry page. */ |
468 | ebddfcbe | Gerd Hoffmann | p[0] = 4; |
469 | ebddfcbe | Gerd Hoffmann | p[1] = 0x16; |
470 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
471 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
472 | ebddfcbe | Gerd Hoffmann | p[2] = (cylinders >> 16) & 0xff; |
473 | ebddfcbe | Gerd Hoffmann | p[3] = (cylinders >> 8) & 0xff; |
474 | ebddfcbe | Gerd Hoffmann | p[4] = cylinders & 0xff; |
475 | ebddfcbe | Gerd Hoffmann | p[5] = heads & 0xff; |
476 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
477 | ebddfcbe | Gerd Hoffmann | p[6] = (cylinders >> 16) & 0xff; |
478 | ebddfcbe | Gerd Hoffmann | p[7] = (cylinders >> 8) & 0xff; |
479 | ebddfcbe | Gerd Hoffmann | p[8] = cylinders & 0xff; |
480 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
481 | ebddfcbe | Gerd Hoffmann | p[9] = (cylinders >> 16) & 0xff; |
482 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
483 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
484 | ebddfcbe | Gerd Hoffmann | /* Device step rate [ns], 200ns */
|
485 | ebddfcbe | Gerd Hoffmann | p[12] = 0; |
486 | ebddfcbe | Gerd Hoffmann | p[13] = 200; |
487 | ebddfcbe | Gerd Hoffmann | /* Landing zone cylinder */
|
488 | ebddfcbe | Gerd Hoffmann | p[14] = 0xff; |
489 | ebddfcbe | Gerd Hoffmann | p[15] = 0xff; |
490 | ebddfcbe | Gerd Hoffmann | p[16] = 0xff; |
491 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
492 | ebddfcbe | Gerd Hoffmann | p[20] = (5400 >> 8) & 0xff; |
493 | ebddfcbe | Gerd Hoffmann | p[21] = 5400 & 0xff; |
494 | ebddfcbe | Gerd Hoffmann | return 0x16; |
495 | ebddfcbe | Gerd Hoffmann | |
496 | ebddfcbe | Gerd Hoffmann | case 5: /* Flexible disk device geometry page. */ |
497 | ebddfcbe | Gerd Hoffmann | p[0] = 5; |
498 | ebddfcbe | Gerd Hoffmann | p[1] = 0x1e; |
499 | ebddfcbe | Gerd Hoffmann | /* Transfer rate [kbit/s], 5Mbit/s */
|
500 | ebddfcbe | Gerd Hoffmann | p[2] = 5000 >> 8; |
501 | ebddfcbe | Gerd Hoffmann | p[3] = 5000 & 0xff; |
502 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
503 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
504 | ebddfcbe | Gerd Hoffmann | p[4] = heads & 0xff; |
505 | ebddfcbe | Gerd Hoffmann | p[5] = secs & 0xff; |
506 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
507 | ebddfcbe | Gerd Hoffmann | p[8] = (cylinders >> 8) & 0xff; |
508 | ebddfcbe | Gerd Hoffmann | p[9] = cylinders & 0xff; |
509 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
510 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
511 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
512 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
513 | ebddfcbe | Gerd Hoffmann | p[12] = (cylinders >> 8) & 0xff; |
514 | ebddfcbe | Gerd Hoffmann | p[13] = cylinders & 0xff; |
515 | ebddfcbe | Gerd Hoffmann | /* Device step rate [100us], 100us */
|
516 | ebddfcbe | Gerd Hoffmann | p[14] = 0; |
517 | ebddfcbe | Gerd Hoffmann | p[15] = 1; |
518 | ebddfcbe | Gerd Hoffmann | /* Device step pulse width [us], 1us */
|
519 | ebddfcbe | Gerd Hoffmann | p[16] = 1; |
520 | ebddfcbe | Gerd Hoffmann | /* Device head settle delay [100us], 100us */
|
521 | ebddfcbe | Gerd Hoffmann | p[17] = 0; |
522 | ebddfcbe | Gerd Hoffmann | p[18] = 1; |
523 | ebddfcbe | Gerd Hoffmann | /* Motor on delay [0.1s], 0.1s */
|
524 | ebddfcbe | Gerd Hoffmann | p[19] = 1; |
525 | ebddfcbe | Gerd Hoffmann | /* Motor off delay [0.1s], 0.1s */
|
526 | ebddfcbe | Gerd Hoffmann | p[20] = 1; |
527 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
528 | ebddfcbe | Gerd Hoffmann | p[28] = (5400 >> 8) & 0xff; |
529 | ebddfcbe | Gerd Hoffmann | p[29] = 5400 & 0xff; |
530 | ebddfcbe | Gerd Hoffmann | return 0x1e; |
531 | ebddfcbe | Gerd Hoffmann | |
532 | ebddfcbe | Gerd Hoffmann | case 8: /* Caching page. */ |
533 | ebddfcbe | Gerd Hoffmann | p[0] = 8; |
534 | ebddfcbe | Gerd Hoffmann | p[1] = 0x12; |
535 | ebddfcbe | Gerd Hoffmann | if (bdrv_enable_write_cache(s->qdev.dinfo->bdrv)) {
|
536 | ebddfcbe | Gerd Hoffmann | p[2] = 4; /* WCE */ |
537 | ebddfcbe | Gerd Hoffmann | } |
538 | ebddfcbe | Gerd Hoffmann | return 20; |
539 | ebddfcbe | Gerd Hoffmann | |
540 | ebddfcbe | Gerd Hoffmann | case 0x2a: /* CD Capabilities and Mechanical Status page. */ |
541 | ebddfcbe | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) != BDRV_TYPE_CDROM)
|
542 | ebddfcbe | Gerd Hoffmann | return 0; |
543 | ebddfcbe | Gerd Hoffmann | p[0] = 0x2a; |
544 | ebddfcbe | Gerd Hoffmann | p[1] = 0x14; |
545 | ebddfcbe | Gerd Hoffmann | p[2] = 3; // CD-R & CD-RW read |
546 | ebddfcbe | Gerd Hoffmann | p[3] = 0; // Writing not supported |
547 | ebddfcbe | Gerd Hoffmann | p[4] = 0x7f; /* Audio, composite, digital out, |
548 | ebddfcbe | Gerd Hoffmann | mode 2 form 1&2, multi session */
|
549 | ebddfcbe | Gerd Hoffmann | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
550 | ebddfcbe | Gerd Hoffmann | RW corrected, C2 errors, ISRC,
|
551 | ebddfcbe | Gerd Hoffmann | UPC, Bar code */
|
552 | ebddfcbe | Gerd Hoffmann | p[6] = 0x2d | (bdrv_is_locked(s->qdev.dinfo->bdrv)? 2 : 0); |
553 | ebddfcbe | Gerd Hoffmann | /* Locking supported, jumper present, eject, tray */
|
554 | ebddfcbe | Gerd Hoffmann | p[7] = 0; /* no volume & mute control, no |
555 | ebddfcbe | Gerd Hoffmann | changer */
|
556 | ebddfcbe | Gerd Hoffmann | p[8] = (50 * 176) >> 8; // 50x read speed |
557 | ebddfcbe | Gerd Hoffmann | p[9] = (50 * 176) & 0xff; |
558 | ebddfcbe | Gerd Hoffmann | p[10] = 0 >> 8; // No volume |
559 | ebddfcbe | Gerd Hoffmann | p[11] = 0 & 0xff; |
560 | ebddfcbe | Gerd Hoffmann | p[12] = 2048 >> 8; // 2M buffer |
561 | ebddfcbe | Gerd Hoffmann | p[13] = 2048 & 0xff; |
562 | ebddfcbe | Gerd Hoffmann | p[14] = (16 * 176) >> 8; // 16x read speed current |
563 | ebddfcbe | Gerd Hoffmann | p[15] = (16 * 176) & 0xff; |
564 | ebddfcbe | Gerd Hoffmann | p[18] = (16 * 176) >> 8; // 16x write speed |
565 | ebddfcbe | Gerd Hoffmann | p[19] = (16 * 176) & 0xff; |
566 | ebddfcbe | Gerd Hoffmann | p[20] = (16 * 176) >> 8; // 16x write speed current |
567 | ebddfcbe | Gerd Hoffmann | p[21] = (16 * 176) & 0xff; |
568 | ebddfcbe | Gerd Hoffmann | return 22; |
569 | ebddfcbe | Gerd Hoffmann | |
570 | ebddfcbe | Gerd Hoffmann | default:
|
571 | ebddfcbe | Gerd Hoffmann | return 0; |
572 | ebddfcbe | Gerd Hoffmann | } |
573 | ebddfcbe | Gerd Hoffmann | } |
574 | ebddfcbe | Gerd Hoffmann | |
575 | ebddfcbe | Gerd Hoffmann | static int scsi_disk_emulate_mode_sense(SCSIRequest *req, uint8_t *outbuf) |
576 | ebddfcbe | Gerd Hoffmann | { |
577 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
578 | ebddfcbe | Gerd Hoffmann | BlockDriverState *bdrv = req->dev->dinfo->bdrv; |
579 | ebddfcbe | Gerd Hoffmann | uint64_t nb_sectors; |
580 | ebddfcbe | Gerd Hoffmann | int page, dbd, buflen;
|
581 | ebddfcbe | Gerd Hoffmann | uint8_t *p; |
582 | ebddfcbe | Gerd Hoffmann | |
583 | ebddfcbe | Gerd Hoffmann | dbd = req->cmd.buf[1] & 0x8; |
584 | ebddfcbe | Gerd Hoffmann | page = req->cmd.buf[2] & 0x3f; |
585 | ebddfcbe | Gerd Hoffmann | DPRINTF("Mode Sense (page %d, len %zd)\n", page, req->cmd.xfer);
|
586 | ebddfcbe | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
587 | ebddfcbe | Gerd Hoffmann | p = outbuf; |
588 | ebddfcbe | Gerd Hoffmann | |
589 | ebddfcbe | Gerd Hoffmann | p[1] = 0; /* Default media type. */ |
590 | ebddfcbe | Gerd Hoffmann | p[3] = 0; /* Block descriptor length. */ |
591 | ebddfcbe | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) == BDRV_TYPE_CDROM ||
|
592 | ebddfcbe | Gerd Hoffmann | bdrv_is_read_only(bdrv)) { |
593 | ebddfcbe | Gerd Hoffmann | p[2] = 0x80; /* Readonly. */ |
594 | ebddfcbe | Gerd Hoffmann | } |
595 | ebddfcbe | Gerd Hoffmann | p += 4;
|
596 | ebddfcbe | Gerd Hoffmann | |
597 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry(bdrv, &nb_sectors); |
598 | ebddfcbe | Gerd Hoffmann | if ((~dbd) & nb_sectors) {
|
599 | ebddfcbe | Gerd Hoffmann | outbuf[3] = 8; /* Block descriptor length */ |
600 | ebddfcbe | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
601 | ebddfcbe | Gerd Hoffmann | nb_sectors--; |
602 | ebddfcbe | Gerd Hoffmann | if (nb_sectors > 0xffffff) |
603 | ebddfcbe | Gerd Hoffmann | nb_sectors = 0xffffff;
|
604 | ebddfcbe | Gerd Hoffmann | p[0] = 0; /* media density code */ |
605 | ebddfcbe | Gerd Hoffmann | p[1] = (nb_sectors >> 16) & 0xff; |
606 | ebddfcbe | Gerd Hoffmann | p[2] = (nb_sectors >> 8) & 0xff; |
607 | ebddfcbe | Gerd Hoffmann | p[3] = nb_sectors & 0xff; |
608 | ebddfcbe | Gerd Hoffmann | p[4] = 0; /* reserved */ |
609 | ebddfcbe | Gerd Hoffmann | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
610 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
611 | ebddfcbe | Gerd Hoffmann | p[7] = 0; |
612 | ebddfcbe | Gerd Hoffmann | p += 8;
|
613 | ebddfcbe | Gerd Hoffmann | } |
614 | ebddfcbe | Gerd Hoffmann | |
615 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
616 | ebddfcbe | Gerd Hoffmann | case 0x04: |
617 | ebddfcbe | Gerd Hoffmann | case 0x05: |
618 | ebddfcbe | Gerd Hoffmann | case 0x08: |
619 | ebddfcbe | Gerd Hoffmann | case 0x2a: |
620 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, page, p); |
621 | ebddfcbe | Gerd Hoffmann | break;
|
622 | ebddfcbe | Gerd Hoffmann | case 0x3f: |
623 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, 0x08, p);
|
624 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, 0x2a, p);
|
625 | ebddfcbe | Gerd Hoffmann | break;
|
626 | ebddfcbe | Gerd Hoffmann | } |
627 | ebddfcbe | Gerd Hoffmann | |
628 | ebddfcbe | Gerd Hoffmann | buflen = p - outbuf; |
629 | ebddfcbe | Gerd Hoffmann | outbuf[0] = buflen - 4; |
630 | ebddfcbe | Gerd Hoffmann | if (buflen > req->cmd.xfer)
|
631 | ebddfcbe | Gerd Hoffmann | buflen = req->cmd.xfer; |
632 | ebddfcbe | Gerd Hoffmann | return buflen;
|
633 | ebddfcbe | Gerd Hoffmann | } |
634 | ebddfcbe | Gerd Hoffmann | |
635 | 02880f43 | Gerd Hoffmann | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
636 | 02880f43 | Gerd Hoffmann | { |
637 | 02880f43 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
638 | 02880f43 | Gerd Hoffmann | BlockDriverState *bdrv = req->dev->dinfo->bdrv; |
639 | 02880f43 | Gerd Hoffmann | int start_track, format, msf, toclen;
|
640 | 02880f43 | Gerd Hoffmann | uint64_t nb_sectors; |
641 | 02880f43 | Gerd Hoffmann | |
642 | 02880f43 | Gerd Hoffmann | msf = req->cmd.buf[1] & 2; |
643 | 02880f43 | Gerd Hoffmann | format = req->cmd.buf[2] & 0xf; |
644 | 02880f43 | Gerd Hoffmann | start_track = req->cmd.buf[6];
|
645 | 02880f43 | Gerd Hoffmann | bdrv_get_geometry(bdrv, &nb_sectors); |
646 | 02880f43 | Gerd Hoffmann | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
647 | 02880f43 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
648 | 02880f43 | Gerd Hoffmann | switch (format) {
|
649 | 02880f43 | Gerd Hoffmann | case 0: |
650 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
651 | 02880f43 | Gerd Hoffmann | break;
|
652 | 02880f43 | Gerd Hoffmann | case 1: |
653 | 02880f43 | Gerd Hoffmann | /* multi session : only a single session defined */
|
654 | 02880f43 | Gerd Hoffmann | toclen = 12;
|
655 | 02880f43 | Gerd Hoffmann | memset(outbuf, 0, 12); |
656 | 02880f43 | Gerd Hoffmann | outbuf[1] = 0x0a; |
657 | 02880f43 | Gerd Hoffmann | outbuf[2] = 0x01; |
658 | 02880f43 | Gerd Hoffmann | outbuf[3] = 0x01; |
659 | 02880f43 | Gerd Hoffmann | break;
|
660 | 02880f43 | Gerd Hoffmann | case 2: |
661 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
662 | 02880f43 | Gerd Hoffmann | break;
|
663 | 02880f43 | Gerd Hoffmann | default:
|
664 | 02880f43 | Gerd Hoffmann | return -1; |
665 | 02880f43 | Gerd Hoffmann | } |
666 | 02880f43 | Gerd Hoffmann | if (toclen > req->cmd.xfer)
|
667 | 02880f43 | Gerd Hoffmann | toclen = req->cmd.xfer; |
668 | 02880f43 | Gerd Hoffmann | return toclen;
|
669 | 02880f43 | Gerd Hoffmann | } |
670 | 02880f43 | Gerd Hoffmann | |
671 | aa5dbdc1 | Gerd Hoffmann | static int scsi_disk_emulate_command(SCSIRequest *req, uint8_t *outbuf) |
672 | aa5dbdc1 | Gerd Hoffmann | { |
673 | e7e25e32 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
674 | aa5dbdc1 | Gerd Hoffmann | BlockDriverState *bdrv = req->dev->dinfo->bdrv; |
675 | e7e25e32 | Gerd Hoffmann | uint64_t nb_sectors; |
676 | aa5dbdc1 | Gerd Hoffmann | int buflen = 0; |
677 | aa5dbdc1 | Gerd Hoffmann | |
678 | aa5dbdc1 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
679 | aa5dbdc1 | Gerd Hoffmann | case TEST_UNIT_READY:
|
680 | aa5dbdc1 | Gerd Hoffmann | if (!bdrv_is_inserted(bdrv))
|
681 | aa5dbdc1 | Gerd Hoffmann | goto not_ready;
|
682 | aa5dbdc1 | Gerd Hoffmann | break;
|
683 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
684 | 51ad87c9 | Gerd Hoffmann | if (req->cmd.xfer < 4) |
685 | 51ad87c9 | Gerd Hoffmann | goto illegal_request;
|
686 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 4); |
687 | 51ad87c9 | Gerd Hoffmann | buflen = 4;
|
688 | 51ad87c9 | Gerd Hoffmann | if (req->dev->sense.key == NOT_READY && req->cmd.xfer >= 18) { |
689 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 18); |
690 | 51ad87c9 | Gerd Hoffmann | buflen = 18;
|
691 | 51ad87c9 | Gerd Hoffmann | outbuf[7] = 10; |
692 | 51ad87c9 | Gerd Hoffmann | /* asc 0x3a, ascq 0: Medium not present */
|
693 | 51ad87c9 | Gerd Hoffmann | outbuf[12] = 0x3a; |
694 | 51ad87c9 | Gerd Hoffmann | outbuf[13] = 0; |
695 | 51ad87c9 | Gerd Hoffmann | } |
696 | 51ad87c9 | Gerd Hoffmann | outbuf[0] = 0xf0; |
697 | 51ad87c9 | Gerd Hoffmann | outbuf[1] = 0; |
698 | 51ad87c9 | Gerd Hoffmann | outbuf[2] = req->dev->sense.key;
|
699 | 51ad87c9 | Gerd Hoffmann | scsi_dev_clear_sense(req->dev); |
700 | 51ad87c9 | Gerd Hoffmann | break;
|
701 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
702 | 0b06c059 | Gerd Hoffmann | buflen = scsi_disk_emulate_inquiry(req, outbuf); |
703 | 0b06c059 | Gerd Hoffmann | if (buflen < 0) |
704 | 0b06c059 | Gerd Hoffmann | goto illegal_request;
|
705 | 0b06c059 | Gerd Hoffmann | break;
|
706 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
707 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
708 | ebddfcbe | Gerd Hoffmann | buflen = scsi_disk_emulate_mode_sense(req, outbuf); |
709 | ebddfcbe | Gerd Hoffmann | if (buflen < 0) |
710 | ebddfcbe | Gerd Hoffmann | goto illegal_request;
|
711 | ebddfcbe | Gerd Hoffmann | break;
|
712 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
713 | 02880f43 | Gerd Hoffmann | buflen = scsi_disk_emulate_read_toc(req, outbuf); |
714 | 02880f43 | Gerd Hoffmann | if (buflen < 0) |
715 | 02880f43 | Gerd Hoffmann | goto illegal_request;
|
716 | 02880f43 | Gerd Hoffmann | break;
|
717 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
718 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
719 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
720 | 3d53ba18 | Gerd Hoffmann | break;
|
721 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
722 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
723 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
724 | 3d53ba18 | Gerd Hoffmann | break;
|
725 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
726 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
727 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
728 | 3d53ba18 | Gerd Hoffmann | break;
|
729 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
730 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
731 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
732 | 3d53ba18 | Gerd Hoffmann | break;
|
733 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
734 | 8d3628ff | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) == BDRV_TYPE_CDROM && (req->cmd.buf[4] & 2)) { |
735 | 8d3628ff | Gerd Hoffmann | /* load/eject medium */
|
736 | 8d3628ff | Gerd Hoffmann | bdrv_eject(bdrv, !(req->cmd.buf[4] & 1)); |
737 | 8d3628ff | Gerd Hoffmann | } |
738 | 8d3628ff | Gerd Hoffmann | break;
|
739 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
740 | c68b9f34 | Gerd Hoffmann | bdrv_set_locked(bdrv, req->cmd.buf[4] & 1); |
741 | c68b9f34 | Gerd Hoffmann | break;
|
742 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
743 | e7e25e32 | Gerd Hoffmann | /* The normal LEN field for this command is zero. */
|
744 | e7e25e32 | Gerd Hoffmann | memset(outbuf, 0, 8); |
745 | e7e25e32 | Gerd Hoffmann | bdrv_get_geometry(bdrv, &nb_sectors); |
746 | e7e25e32 | Gerd Hoffmann | if (!nb_sectors)
|
747 | e7e25e32 | Gerd Hoffmann | goto not_ready;
|
748 | e7e25e32 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
749 | e7e25e32 | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
750 | e7e25e32 | Gerd Hoffmann | nb_sectors--; |
751 | e7e25e32 | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
752 | e7e25e32 | Gerd Hoffmann | s->max_lba = nb_sectors; |
753 | e7e25e32 | Gerd Hoffmann | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
754 | e7e25e32 | Gerd Hoffmann | if (nb_sectors > UINT32_MAX)
|
755 | e7e25e32 | Gerd Hoffmann | nb_sectors = UINT32_MAX; |
756 | e7e25e32 | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 24) & 0xff; |
757 | e7e25e32 | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 16) & 0xff; |
758 | e7e25e32 | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 8) & 0xff; |
759 | e7e25e32 | Gerd Hoffmann | outbuf[3] = nb_sectors & 0xff; |
760 | e7e25e32 | Gerd Hoffmann | outbuf[4] = 0; |
761 | e7e25e32 | Gerd Hoffmann | outbuf[5] = 0; |
762 | e7e25e32 | Gerd Hoffmann | outbuf[6] = s->cluster_size * 2; |
763 | e7e25e32 | Gerd Hoffmann | outbuf[7] = 0; |
764 | e7e25e32 | Gerd Hoffmann | buflen = 8;
|
765 | e7e25e32 | Gerd Hoffmann | break;
|
766 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
767 | fc903943 | Gerd Hoffmann | bdrv_flush(bdrv); |
768 | fc903943 | Gerd Hoffmann | break;
|
769 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
770 | 38215553 | Gerd Hoffmann | memset(outbuf, 0, 8); |
771 | 38215553 | Gerd Hoffmann | /* ??? This should probably return much more information. For now
|
772 | 38215553 | Gerd Hoffmann | just return the basic header indicating the CD-ROM profile. */
|
773 | 38215553 | Gerd Hoffmann | outbuf[7] = 8; // CD-ROM |
774 | 38215553 | Gerd Hoffmann | buflen = 8;
|
775 | 38215553 | Gerd Hoffmann | break;
|
776 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
777 | 5dd90e2a | Gerd Hoffmann | /* Service Action In subcommands. */
|
778 | 5dd90e2a | Gerd Hoffmann | if ((req->cmd.buf[1] & 31) == 0x10) { |
779 | 5dd90e2a | Gerd Hoffmann | DPRINTF("SAI READ CAPACITY(16)\n");
|
780 | 5dd90e2a | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
781 | 5dd90e2a | Gerd Hoffmann | bdrv_get_geometry(bdrv, &nb_sectors); |
782 | 5dd90e2a | Gerd Hoffmann | if (!nb_sectors)
|
783 | 5dd90e2a | Gerd Hoffmann | goto not_ready;
|
784 | 5dd90e2a | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
785 | 5dd90e2a | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
786 | 5dd90e2a | Gerd Hoffmann | nb_sectors--; |
787 | 5dd90e2a | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
788 | 5dd90e2a | Gerd Hoffmann | s->max_lba = nb_sectors; |
789 | 5dd90e2a | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 56) & 0xff; |
790 | 5dd90e2a | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 48) & 0xff; |
791 | 5dd90e2a | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 40) & 0xff; |
792 | 5dd90e2a | Gerd Hoffmann | outbuf[3] = (nb_sectors >> 32) & 0xff; |
793 | 5dd90e2a | Gerd Hoffmann | outbuf[4] = (nb_sectors >> 24) & 0xff; |
794 | 5dd90e2a | Gerd Hoffmann | outbuf[5] = (nb_sectors >> 16) & 0xff; |
795 | 5dd90e2a | Gerd Hoffmann | outbuf[6] = (nb_sectors >> 8) & 0xff; |
796 | 5dd90e2a | Gerd Hoffmann | outbuf[7] = nb_sectors & 0xff; |
797 | 5dd90e2a | Gerd Hoffmann | outbuf[8] = 0; |
798 | 5dd90e2a | Gerd Hoffmann | outbuf[9] = 0; |
799 | 5dd90e2a | Gerd Hoffmann | outbuf[10] = s->cluster_size * 2; |
800 | 5dd90e2a | Gerd Hoffmann | outbuf[11] = 0; |
801 | 5dd90e2a | Gerd Hoffmann | /* Protection, exponent and lowest lba field left blank. */
|
802 | 5dd90e2a | Gerd Hoffmann | buflen = req->cmd.xfer; |
803 | 5dd90e2a | Gerd Hoffmann | break;
|
804 | 5dd90e2a | Gerd Hoffmann | } |
805 | 5dd90e2a | Gerd Hoffmann | DPRINTF("Unsupported Service Action In\n");
|
806 | 5dd90e2a | Gerd Hoffmann | goto illegal_request;
|
807 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
808 | 39ec9a50 | Gerd Hoffmann | if (req->cmd.xfer < 16) |
809 | 39ec9a50 | Gerd Hoffmann | goto illegal_request;
|
810 | 39ec9a50 | Gerd Hoffmann | memset(outbuf, 0, 16); |
811 | 39ec9a50 | Gerd Hoffmann | outbuf[3] = 8; |
812 | 39ec9a50 | Gerd Hoffmann | buflen = 16;
|
813 | 39ec9a50 | Gerd Hoffmann | break;
|
814 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
815 | 88f8a5ed | Gerd Hoffmann | break;
|
816 | aa5dbdc1 | Gerd Hoffmann | default:
|
817 | aa5dbdc1 | Gerd Hoffmann | goto illegal_request;
|
818 | aa5dbdc1 | Gerd Hoffmann | } |
819 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, GOOD, NO_SENSE); |
820 | aa5dbdc1 | Gerd Hoffmann | return buflen;
|
821 | aa5dbdc1 | Gerd Hoffmann | |
822 | aa5dbdc1 | Gerd Hoffmann | not_ready:
|
823 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, CHECK_CONDITION, NOT_READY); |
824 | aa5dbdc1 | Gerd Hoffmann | return 0; |
825 | aa5dbdc1 | Gerd Hoffmann | |
826 | aa5dbdc1 | Gerd Hoffmann | illegal_request:
|
827 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, CHECK_CONDITION, ILLEGAL_REQUEST); |
828 | aa5dbdc1 | Gerd Hoffmann | return 0; |
829 | aa5dbdc1 | Gerd Hoffmann | } |
830 | aa5dbdc1 | Gerd Hoffmann | |
831 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
832 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
833 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
834 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
835 | 2e5d83bb | pbrook | |
836 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
837 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
838 | 2e5d83bb | pbrook | { |
839 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
840 | 86106e59 | aliguori | uint64_t lba; |
841 | 2e5d83bb | pbrook | uint32_t len; |
842 | 2e5d83bb | pbrook | int cmdlen;
|
843 | 2e5d83bb | pbrook | int is_write;
|
844 | a917d384 | pbrook | uint8_t command; |
845 | a917d384 | pbrook | uint8_t *outbuf; |
846 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
847 | aa5dbdc1 | Gerd Hoffmann | int rc;
|
848 | a917d384 | pbrook | |
849 | a917d384 | pbrook | command = buf[0];
|
850 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
851 | a917d384 | pbrook | if (r) {
|
852 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
853 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
854 | a917d384 | pbrook | } |
855 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
856 | a917d384 | pbrook | single lun, so this should not matter. */
|
857 | 89b08ae1 | Gerd Hoffmann | r = scsi_new_request(d, tag, lun); |
858 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
859 | 2e5d83bb | pbrook | is_write = 0;
|
860 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
861 | a917d384 | pbrook | switch (command >> 5) { |
862 | 2e5d83bb | pbrook | case 0: |
863 | 86106e59 | aliguori | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
864 | 86106e59 | aliguori | (((uint64_t) buf[1] & 0x1f) << 16); |
865 | 2e5d83bb | pbrook | len = buf[4];
|
866 | 2e5d83bb | pbrook | cmdlen = 6;
|
867 | 2e5d83bb | pbrook | break;
|
868 | 2e5d83bb | pbrook | case 1: |
869 | 2e5d83bb | pbrook | case 2: |
870 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
871 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
872 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
873 | 2e5d83bb | pbrook | cmdlen = 10;
|
874 | 2e5d83bb | pbrook | break;
|
875 | 2e5d83bb | pbrook | case 4: |
876 | 86106e59 | aliguori | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
877 | 86106e59 | aliguori | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
878 | 86106e59 | aliguori | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
879 | 86106e59 | aliguori | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
880 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
881 | 2e5d83bb | pbrook | cmdlen = 16;
|
882 | 2e5d83bb | pbrook | break;
|
883 | 2e5d83bb | pbrook | case 5: |
884 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
885 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
886 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
887 | 2e5d83bb | pbrook | cmdlen = 12;
|
888 | 2e5d83bb | pbrook | break;
|
889 | 2e5d83bb | pbrook | default:
|
890 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
891 | 2e5d83bb | pbrook | goto fail;
|
892 | 2e5d83bb | pbrook | } |
893 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
894 | 2e5d83bb | pbrook | { |
895 | 2e5d83bb | pbrook | int i;
|
896 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
897 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
898 | 2e5d83bb | pbrook | } |
899 | 2e5d83bb | pbrook | printf("\n");
|
900 | 2e5d83bb | pbrook | } |
901 | 2e5d83bb | pbrook | #endif
|
902 | aa5dbdc1 | Gerd Hoffmann | |
903 | aa5dbdc1 | Gerd Hoffmann | if (scsi_req_parse(&r->req, buf) != 0) { |
904 | aa5dbdc1 | Gerd Hoffmann | BADF("Unsupported command length, command %x\n", command);
|
905 | aa5dbdc1 | Gerd Hoffmann | goto fail;
|
906 | aa5dbdc1 | Gerd Hoffmann | } |
907 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.len == cmdlen); |
908 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.lba == lba); |
909 | aa5dbdc1 | Gerd Hoffmann | |
910 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
911 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
912 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
913 | ebf46023 | Gerd Hoffmann | if (command != REQUEST_SENSE && command != INQUIRY)
|
914 | 22864256 | blueswir1 | goto fail;
|
915 | 2e5d83bb | pbrook | } |
916 | a917d384 | pbrook | switch (command) {
|
917 | ebf46023 | Gerd Hoffmann | case TEST_UNIT_READY:
|
918 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
919 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
920 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
921 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
922 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
923 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
924 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
925 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
926 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
927 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
928 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
929 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
930 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
931 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
932 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
933 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
934 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
935 | aa5dbdc1 | Gerd Hoffmann | rc = scsi_disk_emulate_command(&r->req, outbuf); |
936 | aa5dbdc1 | Gerd Hoffmann | if (rc > 0) { |
937 | aa5dbdc1 | Gerd Hoffmann | r->iov.iov_len = rc; |
938 | aa5dbdc1 | Gerd Hoffmann | } else {
|
939 | aa5dbdc1 | Gerd Hoffmann | scsi_req_complete(&r->req); |
940 | aa5dbdc1 | Gerd Hoffmann | scsi_remove_request(r); |
941 | 0b06c059 | Gerd Hoffmann | return 0; |
942 | aa5dbdc1 | Gerd Hoffmann | } |
943 | 0b06c059 | Gerd Hoffmann | break;
|
944 | ebf46023 | Gerd Hoffmann | case READ_6:
|
945 | ebf46023 | Gerd Hoffmann | case READ_10:
|
946 | bd536cf3 | Gerd Hoffmann | case READ_12:
|
947 | bd536cf3 | Gerd Hoffmann | case READ_16:
|
948 | 0bf9e31a | Blue Swirl | DPRINTF("Read (sector %" PRId64 ", count %d)\n", lba, len); |
949 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
950 | 274fb0e1 | aliguori | goto illegal_lba;
|
951 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
952 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
953 | 2e5d83bb | pbrook | break;
|
954 | ebf46023 | Gerd Hoffmann | case WRITE_6:
|
955 | ebf46023 | Gerd Hoffmann | case WRITE_10:
|
956 | bd536cf3 | Gerd Hoffmann | case WRITE_12:
|
957 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
958 | 0bf9e31a | Blue Swirl | DPRINTF("Write (sector %" PRId64 ", count %d)\n", lba, len); |
959 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
960 | 274fb0e1 | aliguori | goto illegal_lba;
|
961 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
962 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
963 | 2e5d83bb | pbrook | is_write = 1;
|
964 | 2e5d83bb | pbrook | break;
|
965 | 2e5d83bb | pbrook | default:
|
966 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
967 | 2e5d83bb | pbrook | fail:
|
968 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
969 | 2e5d83bb | pbrook | return 0; |
970 | 274fb0e1 | aliguori | illegal_lba:
|
971 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
972 | 274fb0e1 | aliguori | return 0; |
973 | 2e5d83bb | pbrook | } |
974 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
975 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
976 | a917d384 | pbrook | } |
977 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
978 | a917d384 | pbrook | if (is_write) {
|
979 | a917d384 | pbrook | return -len;
|
980 | a917d384 | pbrook | } else {
|
981 | a917d384 | pbrook | if (!r->sector_count)
|
982 | a917d384 | pbrook | r->sector_count = -1;
|
983 | a917d384 | pbrook | return len;
|
984 | 2e5d83bb | pbrook | } |
985 | 2e5d83bb | pbrook | } |
986 | 2e5d83bb | pbrook | |
987 | 56a14938 | Gerd Hoffmann | static void scsi_destroy(SCSIDevice *dev) |
988 | 56a14938 | Gerd Hoffmann | { |
989 | 56a14938 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
990 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
991 | 56a14938 | Gerd Hoffmann | |
992 | 9af99d98 | Gerd Hoffmann | while (!QTAILQ_EMPTY(&s->qdev.requests)) {
|
993 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, QTAILQ_FIRST(&s->qdev.requests)); |
994 | 9af99d98 | Gerd Hoffmann | scsi_remove_request(r); |
995 | 9af99d98 | Gerd Hoffmann | } |
996 | 251882b7 | Gerd Hoffmann | drive_uninit(s->qdev.dinfo); |
997 | 56a14938 | Gerd Hoffmann | } |
998 | 56a14938 | Gerd Hoffmann | |
999 | d52affa7 | Gerd Hoffmann | static int scsi_disk_initfn(SCSIDevice *dev) |
1000 | 2e5d83bb | pbrook | { |
1001 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1002 | 274fb0e1 | aliguori | uint64_t nb_sectors; |
1003 | 2e5d83bb | pbrook | |
1004 | 251882b7 | Gerd Hoffmann | if (!s->qdev.dinfo || !s->qdev.dinfo->bdrv) {
|
1005 | d52affa7 | Gerd Hoffmann | qemu_error("scsi-disk: drive property not set\n");
|
1006 | d52affa7 | Gerd Hoffmann | return -1; |
1007 | d52affa7 | Gerd Hoffmann | } |
1008 | d52affa7 | Gerd Hoffmann | |
1009 | 251882b7 | Gerd Hoffmann | if (bdrv_get_type_hint(s->qdev.dinfo->bdrv) == BDRV_TYPE_CDROM) {
|
1010 | 7c22dd52 | pbrook | s->cluster_size = 4;
|
1011 | 2e5d83bb | pbrook | } else {
|
1012 | 7c22dd52 | pbrook | s->cluster_size = 1;
|
1013 | 2e5d83bb | pbrook | } |
1014 | b07995e3 | Gerd Hoffmann | s->qdev.blocksize = 512 * s->cluster_size;
|
1015 | 91376656 | Gerd Hoffmann | s->qdev.type = TYPE_DISK; |
1016 | 251882b7 | Gerd Hoffmann | bdrv_get_geometry(s->qdev.dinfo->bdrv, &nb_sectors); |
1017 | 274fb0e1 | aliguori | nb_sectors /= s->cluster_size; |
1018 | 274fb0e1 | aliguori | if (nb_sectors)
|
1019 | 274fb0e1 | aliguori | nb_sectors--; |
1020 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
1021 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
1022 | d52affa7 | Gerd Hoffmann | return 0; |
1023 | d52affa7 | Gerd Hoffmann | } |
1024 | d52affa7 | Gerd Hoffmann | |
1025 | d52affa7 | Gerd Hoffmann | static SCSIDeviceInfo scsi_disk_info = {
|
1026 | d52affa7 | Gerd Hoffmann | .qdev.name = "scsi-disk",
|
1027 | d52affa7 | Gerd Hoffmann | .qdev.desc = "virtual scsi disk or cdrom",
|
1028 | d52affa7 | Gerd Hoffmann | .qdev.size = sizeof(SCSIDiskState),
|
1029 | d52affa7 | Gerd Hoffmann | .init = scsi_disk_initfn, |
1030 | 56a14938 | Gerd Hoffmann | .destroy = scsi_destroy, |
1031 | d52affa7 | Gerd Hoffmann | .send_command = scsi_send_command, |
1032 | d52affa7 | Gerd Hoffmann | .read_data = scsi_read_data, |
1033 | d52affa7 | Gerd Hoffmann | .write_data = scsi_write_data, |
1034 | d52affa7 | Gerd Hoffmann | .cancel_io = scsi_cancel_io, |
1035 | d52affa7 | Gerd Hoffmann | .get_buf = scsi_get_buf, |
1036 | d52affa7 | Gerd Hoffmann | .qdev.props = (Property[]) { |
1037 | 251882b7 | Gerd Hoffmann | DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.dinfo),
|
1038 | 383b4d9b | Gerd Hoffmann | DEFINE_PROP_STRING("ver", SCSIDiskState, version),
|
1039 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
1040 | d52affa7 | Gerd Hoffmann | }, |
1041 | d52affa7 | Gerd Hoffmann | }; |
1042 | d52affa7 | Gerd Hoffmann | |
1043 | d52affa7 | Gerd Hoffmann | static void scsi_disk_register_devices(void) |
1044 | d52affa7 | Gerd Hoffmann | { |
1045 | d52affa7 | Gerd Hoffmann | scsi_qdev_register(&scsi_disk_info); |
1046 | 8ccc2ace | ths | } |
1047 | d52affa7 | Gerd Hoffmann | device_init(scsi_disk_register_devices) |