root / hw / scsi-disk.c @ 7f132a21
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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 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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23 | 2e5d83bb | pbrook | |
24 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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25 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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26 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
27 | 2e5d83bb | pbrook | #else
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28 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
29 | 2e5d83bb | pbrook | #endif
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30 | 2e5d83bb | pbrook | |
31 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
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32 | 001faf32 | Blue Swirl | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
33 | 2e5d83bb | pbrook | |
34 | 87ecb68b | pbrook | #include "qemu-common.h" |
35 | 2f792016 | Markus Armbruster | #include "qemu-error.h" |
36 | 43b443b6 | Gerd Hoffmann | #include "scsi.h" |
37 | 0d65e1f8 | Gerd Hoffmann | #include "scsi-defs.h" |
38 | 666daa68 | Markus Armbruster | #include "sysemu.h" |
39 | 22864256 | blueswir1 | |
40 | f0f72ffe | aurel32 | #define SCSI_DMA_BUF_SIZE 131072 |
41 | 57575058 | balrog | #define SCSI_MAX_INQUIRY_LEN 256 |
42 | a917d384 | pbrook | |
43 | ea8a5d7f | aliguori | #define SCSI_REQ_STATUS_RETRY 0x01 |
44 | ea8a5d7f | aliguori | |
45 | d52affa7 | Gerd Hoffmann | typedef struct SCSIDiskState SCSIDiskState; |
46 | d52affa7 | Gerd Hoffmann | |
47 | 4c41d2ef | Gerd Hoffmann | typedef struct SCSIDiskReq { |
48 | 4c41d2ef | Gerd Hoffmann | SCSIRequest req; |
49 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
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50 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
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51 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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52 | e035b43d | aliguori | uint64_t sector; |
53 | e035b43d | aliguori | uint32_t sector_count; |
54 | c87c0672 | aliguori | struct iovec iov;
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55 | c87c0672 | aliguori | QEMUIOVector qiov; |
56 | ea8a5d7f | aliguori | uint32_t status; |
57 | 4c41d2ef | Gerd Hoffmann | } SCSIDiskReq; |
58 | a917d384 | pbrook | |
59 | d52affa7 | Gerd Hoffmann | struct SCSIDiskState
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60 | a917d384 | pbrook | { |
61 | d52affa7 | Gerd Hoffmann | SCSIDevice qdev; |
62 | 428c149b | Christoph Hellwig | BlockDriverState *bs; |
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 | a0fef654 | Markus Armbruster | char *serial;
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70 | 2e5d83bb | pbrook | }; |
71 | 2e5d83bb | pbrook | |
72 | 89b08ae1 | Gerd Hoffmann | static SCSIDiskReq *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun)
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73 | 2e5d83bb | pbrook | { |
74 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *req; |
75 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
76 | a917d384 | pbrook | |
77 | 89b08ae1 | Gerd Hoffmann | req = scsi_req_alloc(sizeof(SCSIDiskReq), d, tag, lun);
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78 | 89b08ae1 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
79 | 9af99d98 | Gerd Hoffmann | r->iov.iov_base = qemu_memalign(512, SCSI_DMA_BUF_SIZE);
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80 | a917d384 | pbrook | return r;
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81 | 2e5d83bb | pbrook | } |
82 | 2e5d83bb | pbrook | |
83 | 4c41d2ef | Gerd Hoffmann | static void scsi_remove_request(SCSIDiskReq *r) |
84 | 4d611c9a | pbrook | { |
85 | f8a83245 | Herve Poussineau | qemu_vfree(r->iov.iov_base); |
86 | 89b08ae1 | Gerd Hoffmann | scsi_req_free(&r->req); |
87 | 4d611c9a | pbrook | } |
88 | 4d611c9a | pbrook | |
89 | 4c41d2ef | Gerd Hoffmann | static SCSIDiskReq *scsi_find_request(SCSIDiskState *s, uint32_t tag)
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90 | 4d611c9a | pbrook | { |
91 | 89b08ae1 | Gerd Hoffmann | return DO_UPCAST(SCSIDiskReq, req, scsi_req_find(&s->qdev, tag));
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92 | a917d384 | pbrook | } |
93 | a917d384 | pbrook | |
94 | ed3a34a3 | Gerd Hoffmann | static void scsi_req_set_status(SCSIRequest *req, int status, int sense_code) |
95 | ed3a34a3 | Gerd Hoffmann | { |
96 | ed3a34a3 | Gerd Hoffmann | req->status = status; |
97 | ed3a34a3 | Gerd Hoffmann | scsi_dev_set_sense(req->dev, sense_code); |
98 | ed3a34a3 | Gerd Hoffmann | } |
99 | ed3a34a3 | Gerd Hoffmann | |
100 | a917d384 | pbrook | /* Helper function for command completion. */
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101 | 4c41d2ef | Gerd Hoffmann | static void scsi_command_complete(SCSIDiskReq *r, int status, int sense) |
102 | a917d384 | pbrook | { |
103 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n",
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104 | 4c41d2ef | Gerd Hoffmann | r->req.tag, status, sense); |
105 | ed3a34a3 | Gerd Hoffmann | scsi_req_set_status(&r->req, status, sense); |
106 | ed3a34a3 | Gerd Hoffmann | scsi_req_complete(&r->req); |
107 | 89b08ae1 | Gerd Hoffmann | scsi_remove_request(r); |
108 | 4d611c9a | pbrook | } |
109 | 4d611c9a | pbrook | |
110 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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111 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
112 | 4d611c9a | pbrook | { |
113 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
114 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
115 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
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116 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
117 | a917d384 | pbrook | if (r) {
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118 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
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119 | 4c41d2ef | Gerd Hoffmann | bdrv_aio_cancel(r->req.aiocb); |
120 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
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121 | a917d384 | pbrook | scsi_remove_request(r); |
122 | a917d384 | pbrook | } |
123 | a917d384 | pbrook | } |
124 | a917d384 | pbrook | |
125 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
126 | a917d384 | pbrook | { |
127 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
128 | a917d384 | pbrook | |
129 | 3e94cb02 | Jan Kiszka | r->req.aiocb = NULL;
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130 | 3e94cb02 | Jan Kiszka | |
131 | a917d384 | pbrook | if (ret) {
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132 | a917d384 | pbrook | DPRINTF("IO error\n");
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133 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, 0);
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134 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, NO_SENSE); |
135 | 4d611c9a | pbrook | return;
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136 | 4d611c9a | pbrook | } |
137 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Data ready tag=0x%x len=%" PRId64 "\n", r->req.tag, r->iov.iov_len); |
138 | a917d384 | pbrook | |
139 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
140 | 4d611c9a | pbrook | } |
141 | 4d611c9a | pbrook | |
142 | a917d384 | pbrook | /* Read more data from scsi device into buffer. */
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143 | 8ccc2ace | ths | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
144 | 2e5d83bb | pbrook | { |
145 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
146 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
147 | 2e5d83bb | pbrook | uint32_t n; |
148 | 2e5d83bb | pbrook | |
149 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
150 | a917d384 | pbrook | if (!r) {
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151 | a917d384 | pbrook | BADF("Bad read tag 0x%x\n", tag);
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152 | b1fa7164 | blueswir1 | /* ??? This is the wrong error. */
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153 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
154 | a917d384 | pbrook | return;
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155 | 2e5d83bb | pbrook | } |
156 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
157 | 0bf9e31a | Blue Swirl | DPRINTF("Read buf_len=%" PRId64 "\n", r->iov.iov_len); |
158 | a917d384 | pbrook | r->sector_count = 0;
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159 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
160 | a917d384 | pbrook | return;
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161 | 2e5d83bb | pbrook | } |
162 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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163 | a917d384 | pbrook | if (r->sector_count == 0) { |
164 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
165 | a917d384 | pbrook | return;
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166 | 2e5d83bb | pbrook | } |
167 | 2e5d83bb | pbrook | |
168 | a917d384 | pbrook | n = r->sector_count; |
169 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
170 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
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171 | a917d384 | pbrook | |
172 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
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173 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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174 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_readv(s->bs, r->sector, &r->qiov, n, |
175 | c87c0672 | aliguori | scsi_read_complete, r); |
176 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
177 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
178 | a917d384 | pbrook | r->sector += n; |
179 | a917d384 | pbrook | r->sector_count -= n; |
180 | 2e5d83bb | pbrook | } |
181 | 2e5d83bb | pbrook | |
182 | 4c41d2ef | Gerd Hoffmann | static int scsi_handle_write_error(SCSIDiskReq *r, int error) |
183 | ea8a5d7f | aliguori | { |
184 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
185 | abd7f68d | Markus Armbruster | BlockErrorAction action = bdrv_get_on_error(s->bs, 0);
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186 | ea8a5d7f | aliguori | |
187 | 380f640f | Luiz Capitulino | if (action == BLOCK_ERR_IGNORE) {
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188 | 428c149b | Christoph Hellwig | bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, 0);
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189 | ea8a5d7f | aliguori | return 0; |
190 | 380f640f | Luiz Capitulino | } |
191 | ea8a5d7f | aliguori | |
192 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
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193 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
194 | ea8a5d7f | aliguori | r->status |= SCSI_REQ_STATUS_RETRY; |
195 | 428c149b | Christoph Hellwig | bdrv_mon_event(s->bs, BDRV_ACTION_STOP, 0);
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196 | 554a310b | Luiz Capitulino | vm_stop(0);
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197 | ea8a5d7f | aliguori | } else {
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198 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
199 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
200 | 428c149b | Christoph Hellwig | bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, 0);
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201 | ea8a5d7f | aliguori | } |
202 | ea8a5d7f | aliguori | |
203 | ea8a5d7f | aliguori | return 1; |
204 | ea8a5d7f | aliguori | } |
205 | ea8a5d7f | aliguori | |
206 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
207 | 4d611c9a | pbrook | { |
208 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
209 | a917d384 | pbrook | uint32_t len; |
210 | ea8a5d7f | aliguori | uint32_t n; |
211 | ea8a5d7f | aliguori | |
212 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
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213 | 4d611c9a | pbrook | |
214 | 4d611c9a | pbrook | if (ret) {
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215 | ea8a5d7f | aliguori | if (scsi_handle_write_error(r, -ret))
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216 | ea8a5d7f | aliguori | return;
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217 | 4d611c9a | pbrook | } |
218 | 4d611c9a | pbrook | |
219 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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220 | ea8a5d7f | aliguori | r->sector += n; |
221 | ea8a5d7f | aliguori | r->sector_count -= n; |
222 | a917d384 | pbrook | if (r->sector_count == 0) { |
223 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
224 | a917d384 | pbrook | } else {
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225 | a917d384 | pbrook | len = r->sector_count * 512;
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226 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
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227 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
228 | a917d384 | pbrook | } |
229 | c87c0672 | aliguori | r->iov.iov_len = len; |
230 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, len);
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231 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, len); |
232 | 4d611c9a | pbrook | } |
233 | 4d611c9a | pbrook | } |
234 | 4d611c9a | pbrook | |
235 | 4c41d2ef | Gerd Hoffmann | static void scsi_write_request(SCSIDiskReq *r) |
236 | ea8a5d7f | aliguori | { |
237 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
238 | ea8a5d7f | aliguori | uint32_t n; |
239 | ea8a5d7f | aliguori | |
240 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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241 | ea8a5d7f | aliguori | if (n) {
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242 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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243 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_writev(s->bs, r->sector, &r->qiov, n, |
244 | c87c0672 | aliguori | scsi_write_complete, r); |
245 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
246 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
247 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
248 | ea8a5d7f | aliguori | } else {
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249 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
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250 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
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251 | ea8a5d7f | aliguori | } |
252 | ea8a5d7f | aliguori | } |
253 | ea8a5d7f | aliguori | |
254 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
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255 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
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256 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
257 | 2e5d83bb | pbrook | { |
258 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
259 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
260 | 2e5d83bb | pbrook | |
261 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
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262 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
263 | a917d384 | pbrook | if (!r) {
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264 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
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265 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
266 | 2e5d83bb | pbrook | return 1; |
267 | 2e5d83bb | pbrook | } |
268 | ea8a5d7f | aliguori | |
269 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
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270 | a917d384 | pbrook | BADF("Data transfer already in progress\n");
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271 | ea8a5d7f | aliguori | |
272 | ea8a5d7f | aliguori | scsi_write_request(r); |
273 | 2e5d83bb | pbrook | |
274 | a917d384 | pbrook | return 0; |
275 | a917d384 | pbrook | } |
276 | 2e5d83bb | pbrook | |
277 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
278 | ea8a5d7f | aliguori | { |
279 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
280 | 9af99d98 | Gerd Hoffmann | SCSIRequest *req; |
281 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
282 | 213189ab | Markus Armbruster | |
283 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
284 | 213189ab | Markus Armbruster | s->bh = NULL;
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285 | ea8a5d7f | aliguori | |
286 | 9af99d98 | Gerd Hoffmann | QTAILQ_FOREACH(req, &s->qdev.requests, next) { |
287 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
288 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
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289 | ea8a5d7f | aliguori | r->status &= ~SCSI_REQ_STATUS_RETRY; |
290 | ea8a5d7f | aliguori | scsi_write_request(r); |
291 | ea8a5d7f | aliguori | } |
292 | ea8a5d7f | aliguori | } |
293 | ea8a5d7f | aliguori | } |
294 | ea8a5d7f | aliguori | |
295 | 213189ab | Markus Armbruster | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
296 | 213189ab | Markus Armbruster | { |
297 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
298 | 213189ab | Markus Armbruster | |
299 | 213189ab | Markus Armbruster | if (!running)
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300 | 213189ab | Markus Armbruster | return;
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301 | 213189ab | Markus Armbruster | |
302 | 213189ab | Markus Armbruster | if (!s->bh) {
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303 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
304 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
305 | 213189ab | Markus Armbruster | } |
306 | 213189ab | Markus Armbruster | } |
307 | 213189ab | Markus Armbruster | |
308 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
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309 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
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310 | a917d384 | pbrook | { |
311 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
312 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
313 | 2e5d83bb | pbrook | |
314 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
315 | a917d384 | pbrook | if (!r) {
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316 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
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317 | a917d384 | pbrook | return NULL; |
318 | 4d611c9a | pbrook | } |
319 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
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320 | 2e5d83bb | pbrook | } |
321 | 2e5d83bb | pbrook | |
322 | 0b06c059 | Gerd Hoffmann | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
323 | 0b06c059 | Gerd Hoffmann | { |
324 | 383b4d9b | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
325 | 0b06c059 | Gerd Hoffmann | int buflen = 0; |
326 | 0b06c059 | Gerd Hoffmann | |
327 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x2) { |
328 | 0b06c059 | Gerd Hoffmann | /* Command support data - optional, not implemented */
|
329 | 0b06c059 | Gerd Hoffmann | BADF("optional INQUIRY command support request not implemented\n");
|
330 | 0b06c059 | Gerd Hoffmann | return -1; |
331 | 0b06c059 | Gerd Hoffmann | } |
332 | 0b06c059 | Gerd Hoffmann | |
333 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x1) { |
334 | 0b06c059 | Gerd Hoffmann | /* Vital product data */
|
335 | 0b06c059 | Gerd Hoffmann | uint8_t page_code = req->cmd.buf[2];
|
336 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 4) { |
337 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is "
|
338 | 0b06c059 | Gerd Hoffmann | "less than 4\n", page_code, req->cmd.xfer);
|
339 | 0b06c059 | Gerd Hoffmann | return -1; |
340 | 0b06c059 | Gerd Hoffmann | } |
341 | 0b06c059 | Gerd Hoffmann | |
342 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
343 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 5;
|
344 | 0b06c059 | Gerd Hoffmann | } else {
|
345 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0;
|
346 | 0b06c059 | Gerd Hoffmann | } |
347 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = page_code ; // this page
|
348 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00;
|
349 | 0b06c059 | Gerd Hoffmann | |
350 | 0b06c059 | Gerd Hoffmann | switch (page_code) {
|
351 | 0b06c059 | Gerd Hoffmann | case 0x00: /* Supported page codes, mandatory */ |
352 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Supported pages] "
|
353 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
354 | ee3659e3 | Christoph Hellwig | outbuf[buflen++] = 4; // number of pages |
355 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
356 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x80; // unit serial number |
357 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x83; // device identification |
358 | ee3659e3 | Christoph Hellwig | outbuf[buflen++] = 0xb0; // block device characteristics |
359 | 0b06c059 | Gerd Hoffmann | break;
|
360 | 0b06c059 | Gerd Hoffmann | |
361 | 0b06c059 | Gerd Hoffmann | case 0x80: /* Device serial number, optional */ |
362 | 0b06c059 | Gerd Hoffmann | { |
363 | a0fef654 | Markus Armbruster | int l = strlen(s->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 | a0fef654 | Markus Armbruster | memcpy(outbuf+buflen, s->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 | 428c149b | Christoph Hellwig | int id_len = strlen(bdrv_get_device_name(s->bs));
|
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 | 428c149b | Christoph Hellwig | memcpy(outbuf+buflen, bdrv_get_device_name(s->bs), id_len); |
395 | 0b06c059 | Gerd Hoffmann | buflen += id_len; |
396 | 0b06c059 | Gerd Hoffmann | break;
|
397 | 0b06c059 | Gerd Hoffmann | } |
398 | ee3659e3 | Christoph Hellwig | case 0xb0: /* block device characteristics */ |
399 | ee3659e3 | Christoph Hellwig | { |
400 | 8cfacf07 | Christoph Hellwig | unsigned int min_io_size = |
401 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.min_io_size / s->qdev.blocksize; |
402 | 8cfacf07 | Christoph Hellwig | unsigned int opt_io_size = |
403 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.opt_io_size / s->qdev.blocksize; |
404 | ee3659e3 | Christoph Hellwig | |
405 | ee3659e3 | Christoph Hellwig | /* required VPD size with unmap support */
|
406 | ee3659e3 | Christoph Hellwig | outbuf[3] = buflen = 0x3c; |
407 | ee3659e3 | Christoph Hellwig | |
408 | ee3659e3 | Christoph Hellwig | memset(outbuf + 4, 0, buflen - 4); |
409 | ee3659e3 | Christoph Hellwig | |
410 | ee3659e3 | Christoph Hellwig | /* optimal transfer length granularity */
|
411 | ee3659e3 | Christoph Hellwig | outbuf[6] = (min_io_size >> 8) & 0xff; |
412 | ee3659e3 | Christoph Hellwig | outbuf[7] = min_io_size & 0xff; |
413 | ee3659e3 | Christoph Hellwig | |
414 | ee3659e3 | Christoph Hellwig | /* optimal transfer length */
|
415 | ee3659e3 | Christoph Hellwig | outbuf[12] = (opt_io_size >> 24) & 0xff; |
416 | ee3659e3 | Christoph Hellwig | outbuf[13] = (opt_io_size >> 16) & 0xff; |
417 | ee3659e3 | Christoph Hellwig | outbuf[14] = (opt_io_size >> 8) & 0xff; |
418 | ee3659e3 | Christoph Hellwig | outbuf[15] = opt_io_size & 0xff; |
419 | ee3659e3 | Christoph Hellwig | break;
|
420 | ee3659e3 | Christoph Hellwig | } |
421 | 0b06c059 | Gerd Hoffmann | default:
|
422 | 0b06c059 | Gerd Hoffmann | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
423 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", page_code, req->cmd.xfer);
|
424 | 0b06c059 | Gerd Hoffmann | return -1; |
425 | 0b06c059 | Gerd Hoffmann | } |
426 | 0b06c059 | Gerd Hoffmann | /* done with EVPD */
|
427 | 0b06c059 | Gerd Hoffmann | return buflen;
|
428 | 0b06c059 | Gerd Hoffmann | } |
429 | 0b06c059 | Gerd Hoffmann | |
430 | 0b06c059 | Gerd Hoffmann | /* Standard INQUIRY data */
|
431 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[2] != 0) { |
432 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) page or code "
|
433 | 0b06c059 | Gerd Hoffmann | "is non-zero [%02X]\n", req->cmd.buf[2]); |
434 | 0b06c059 | Gerd Hoffmann | return -1; |
435 | 0b06c059 | Gerd Hoffmann | } |
436 | 0b06c059 | Gerd Hoffmann | |
437 | 0b06c059 | Gerd Hoffmann | /* PAGE CODE == 0 */
|
438 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 5) { |
439 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) buffer size %zd "
|
440 | 0b06c059 | Gerd Hoffmann | "is less than 5\n", req->cmd.xfer);
|
441 | 0b06c059 | Gerd Hoffmann | return -1; |
442 | 0b06c059 | Gerd Hoffmann | } |
443 | 0b06c059 | Gerd Hoffmann | |
444 | 0b06c059 | Gerd Hoffmann | buflen = req->cmd.xfer; |
445 | 0b06c059 | Gerd Hoffmann | if (buflen > SCSI_MAX_INQUIRY_LEN)
|
446 | 0b06c059 | Gerd Hoffmann | buflen = SCSI_MAX_INQUIRY_LEN; |
447 | 0b06c059 | Gerd Hoffmann | |
448 | 0b06c059 | Gerd Hoffmann | memset(outbuf, 0, buflen);
|
449 | 0b06c059 | Gerd Hoffmann | |
450 | 0b06c059 | Gerd Hoffmann | if (req->lun || req->cmd.buf[1] >> 5) { |
451 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0x7f; /* LUN not supported */ |
452 | 0b06c059 | Gerd Hoffmann | return buflen;
|
453 | 0b06c059 | Gerd Hoffmann | } |
454 | 0b06c059 | Gerd Hoffmann | |
455 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
456 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 5; |
457 | 0b06c059 | Gerd Hoffmann | outbuf[1] = 0x80; |
458 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
459 | 0b06c059 | Gerd Hoffmann | } else {
|
460 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0; |
461 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
462 | 0b06c059 | Gerd Hoffmann | } |
463 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[8], "QEMU ", 8); |
464 | 314b1811 | Gerd Hoffmann | memset(&outbuf[32], 0, 4); |
465 | 552fee93 | Markus Armbruster | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
466 | 99aba0c4 | Christoph Hellwig | /*
|
467 | 99aba0c4 | Christoph Hellwig | * We claim conformance to SPC-3, which is required for guests
|
468 | 99aba0c4 | Christoph Hellwig | * to ask for modern features like READ CAPACITY(16) or the
|
469 | 99aba0c4 | Christoph Hellwig | * block characteristics VPD page by default. Not all of SPC-3
|
470 | 99aba0c4 | Christoph Hellwig | * is actually implemented, but we're good enough.
|
471 | 99aba0c4 | Christoph Hellwig | */
|
472 | ee3659e3 | Christoph Hellwig | outbuf[2] = 5; |
473 | 0b06c059 | Gerd Hoffmann | outbuf[3] = 2; /* Format 2 */ |
474 | ad3cea42 | Artyom Tarasenko | |
475 | ad3cea42 | Artyom Tarasenko | if (buflen > 36) { |
476 | ad3cea42 | Artyom Tarasenko | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
477 | ad3cea42 | Artyom Tarasenko | } else {
|
478 | ad3cea42 | Artyom Tarasenko | /* If the allocation length of CDB is too small,
|
479 | ad3cea42 | Artyom Tarasenko | the additional length is not adjusted */
|
480 | ad3cea42 | Artyom Tarasenko | outbuf[4] = 36 - 5; |
481 | ad3cea42 | Artyom Tarasenko | } |
482 | ad3cea42 | Artyom Tarasenko | |
483 | 0b06c059 | Gerd Hoffmann | /* Sync data transfer and TCQ. */
|
484 | 0b06c059 | Gerd Hoffmann | outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0); |
485 | 0b06c059 | Gerd Hoffmann | return buflen;
|
486 | 0b06c059 | Gerd Hoffmann | } |
487 | 0b06c059 | Gerd Hoffmann | |
488 | ebddfcbe | Gerd Hoffmann | static int mode_sense_page(SCSIRequest *req, int page, uint8_t *p) |
489 | ebddfcbe | Gerd Hoffmann | { |
490 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
491 | 428c149b | Christoph Hellwig | BlockDriverState *bdrv = s->bs; |
492 | ebddfcbe | Gerd Hoffmann | int cylinders, heads, secs;
|
493 | ebddfcbe | Gerd Hoffmann | |
494 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
495 | ebddfcbe | Gerd Hoffmann | case 4: /* Rigid disk device geometry page. */ |
496 | ebddfcbe | Gerd Hoffmann | p[0] = 4; |
497 | ebddfcbe | Gerd Hoffmann | p[1] = 0x16; |
498 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
499 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
500 | ebddfcbe | Gerd Hoffmann | p[2] = (cylinders >> 16) & 0xff; |
501 | ebddfcbe | Gerd Hoffmann | p[3] = (cylinders >> 8) & 0xff; |
502 | ebddfcbe | Gerd Hoffmann | p[4] = cylinders & 0xff; |
503 | ebddfcbe | Gerd Hoffmann | p[5] = heads & 0xff; |
504 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
505 | ebddfcbe | Gerd Hoffmann | p[6] = (cylinders >> 16) & 0xff; |
506 | ebddfcbe | Gerd Hoffmann | p[7] = (cylinders >> 8) & 0xff; |
507 | ebddfcbe | Gerd Hoffmann | p[8] = cylinders & 0xff; |
508 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
509 | ebddfcbe | Gerd Hoffmann | p[9] = (cylinders >> 16) & 0xff; |
510 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
511 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
512 | ebddfcbe | Gerd Hoffmann | /* Device step rate [ns], 200ns */
|
513 | ebddfcbe | Gerd Hoffmann | p[12] = 0; |
514 | ebddfcbe | Gerd Hoffmann | p[13] = 200; |
515 | ebddfcbe | Gerd Hoffmann | /* Landing zone cylinder */
|
516 | ebddfcbe | Gerd Hoffmann | p[14] = 0xff; |
517 | ebddfcbe | Gerd Hoffmann | p[15] = 0xff; |
518 | ebddfcbe | Gerd Hoffmann | p[16] = 0xff; |
519 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
520 | ebddfcbe | Gerd Hoffmann | p[20] = (5400 >> 8) & 0xff; |
521 | ebddfcbe | Gerd Hoffmann | p[21] = 5400 & 0xff; |
522 | ebddfcbe | Gerd Hoffmann | return 0x16; |
523 | ebddfcbe | Gerd Hoffmann | |
524 | ebddfcbe | Gerd Hoffmann | case 5: /* Flexible disk device geometry page. */ |
525 | ebddfcbe | Gerd Hoffmann | p[0] = 5; |
526 | ebddfcbe | Gerd Hoffmann | p[1] = 0x1e; |
527 | ebddfcbe | Gerd Hoffmann | /* Transfer rate [kbit/s], 5Mbit/s */
|
528 | ebddfcbe | Gerd Hoffmann | p[2] = 5000 >> 8; |
529 | ebddfcbe | Gerd Hoffmann | p[3] = 5000 & 0xff; |
530 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
531 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
532 | ebddfcbe | Gerd Hoffmann | p[4] = heads & 0xff; |
533 | ebddfcbe | Gerd Hoffmann | p[5] = secs & 0xff; |
534 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
535 | ebddfcbe | Gerd Hoffmann | p[8] = (cylinders >> 8) & 0xff; |
536 | ebddfcbe | Gerd Hoffmann | p[9] = cylinders & 0xff; |
537 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
538 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
539 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
540 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
541 | ebddfcbe | Gerd Hoffmann | p[12] = (cylinders >> 8) & 0xff; |
542 | ebddfcbe | Gerd Hoffmann | p[13] = cylinders & 0xff; |
543 | ebddfcbe | Gerd Hoffmann | /* Device step rate [100us], 100us */
|
544 | ebddfcbe | Gerd Hoffmann | p[14] = 0; |
545 | ebddfcbe | Gerd Hoffmann | p[15] = 1; |
546 | ebddfcbe | Gerd Hoffmann | /* Device step pulse width [us], 1us */
|
547 | ebddfcbe | Gerd Hoffmann | p[16] = 1; |
548 | ebddfcbe | Gerd Hoffmann | /* Device head settle delay [100us], 100us */
|
549 | ebddfcbe | Gerd Hoffmann | p[17] = 0; |
550 | ebddfcbe | Gerd Hoffmann | p[18] = 1; |
551 | ebddfcbe | Gerd Hoffmann | /* Motor on delay [0.1s], 0.1s */
|
552 | ebddfcbe | Gerd Hoffmann | p[19] = 1; |
553 | ebddfcbe | Gerd Hoffmann | /* Motor off delay [0.1s], 0.1s */
|
554 | ebddfcbe | Gerd Hoffmann | p[20] = 1; |
555 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
556 | ebddfcbe | Gerd Hoffmann | p[28] = (5400 >> 8) & 0xff; |
557 | ebddfcbe | Gerd Hoffmann | p[29] = 5400 & 0xff; |
558 | ebddfcbe | Gerd Hoffmann | return 0x1e; |
559 | ebddfcbe | Gerd Hoffmann | |
560 | ebddfcbe | Gerd Hoffmann | case 8: /* Caching page. */ |
561 | ebddfcbe | Gerd Hoffmann | p[0] = 8; |
562 | ebddfcbe | Gerd Hoffmann | p[1] = 0x12; |
563 | 428c149b | Christoph Hellwig | if (bdrv_enable_write_cache(s->bs)) {
|
564 | ebddfcbe | Gerd Hoffmann | p[2] = 4; /* WCE */ |
565 | ebddfcbe | Gerd Hoffmann | } |
566 | ebddfcbe | Gerd Hoffmann | return 20; |
567 | ebddfcbe | Gerd Hoffmann | |
568 | ebddfcbe | Gerd Hoffmann | case 0x2a: /* CD Capabilities and Mechanical Status page. */ |
569 | ebddfcbe | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) != BDRV_TYPE_CDROM)
|
570 | ebddfcbe | Gerd Hoffmann | return 0; |
571 | ebddfcbe | Gerd Hoffmann | p[0] = 0x2a; |
572 | ebddfcbe | Gerd Hoffmann | p[1] = 0x14; |
573 | ebddfcbe | Gerd Hoffmann | p[2] = 3; // CD-R & CD-RW read |
574 | ebddfcbe | Gerd Hoffmann | p[3] = 0; // Writing not supported |
575 | ebddfcbe | Gerd Hoffmann | p[4] = 0x7f; /* Audio, composite, digital out, |
576 | ebddfcbe | Gerd Hoffmann | mode 2 form 1&2, multi session */
|
577 | ebddfcbe | Gerd Hoffmann | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
578 | ebddfcbe | Gerd Hoffmann | RW corrected, C2 errors, ISRC,
|
579 | ebddfcbe | Gerd Hoffmann | UPC, Bar code */
|
580 | 428c149b | Christoph Hellwig | p[6] = 0x2d | (bdrv_is_locked(s->bs)? 2 : 0); |
581 | ebddfcbe | Gerd Hoffmann | /* Locking supported, jumper present, eject, tray */
|
582 | ebddfcbe | Gerd Hoffmann | p[7] = 0; /* no volume & mute control, no |
583 | ebddfcbe | Gerd Hoffmann | changer */
|
584 | ebddfcbe | Gerd Hoffmann | p[8] = (50 * 176) >> 8; // 50x read speed |
585 | ebddfcbe | Gerd Hoffmann | p[9] = (50 * 176) & 0xff; |
586 | ebddfcbe | Gerd Hoffmann | p[10] = 0 >> 8; // No volume |
587 | ebddfcbe | Gerd Hoffmann | p[11] = 0 & 0xff; |
588 | ebddfcbe | Gerd Hoffmann | p[12] = 2048 >> 8; // 2M buffer |
589 | ebddfcbe | Gerd Hoffmann | p[13] = 2048 & 0xff; |
590 | ebddfcbe | Gerd Hoffmann | p[14] = (16 * 176) >> 8; // 16x read speed current |
591 | ebddfcbe | Gerd Hoffmann | p[15] = (16 * 176) & 0xff; |
592 | ebddfcbe | Gerd Hoffmann | p[18] = (16 * 176) >> 8; // 16x write speed |
593 | ebddfcbe | Gerd Hoffmann | p[19] = (16 * 176) & 0xff; |
594 | ebddfcbe | Gerd Hoffmann | p[20] = (16 * 176) >> 8; // 16x write speed current |
595 | ebddfcbe | Gerd Hoffmann | p[21] = (16 * 176) & 0xff; |
596 | ebddfcbe | Gerd Hoffmann | return 22; |
597 | ebddfcbe | Gerd Hoffmann | |
598 | ebddfcbe | Gerd Hoffmann | default:
|
599 | ebddfcbe | Gerd Hoffmann | return 0; |
600 | ebddfcbe | Gerd Hoffmann | } |
601 | ebddfcbe | Gerd Hoffmann | } |
602 | ebddfcbe | Gerd Hoffmann | |
603 | ebddfcbe | Gerd Hoffmann | static int scsi_disk_emulate_mode_sense(SCSIRequest *req, uint8_t *outbuf) |
604 | ebddfcbe | Gerd Hoffmann | { |
605 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
606 | ebddfcbe | Gerd Hoffmann | uint64_t nb_sectors; |
607 | ebddfcbe | Gerd Hoffmann | int page, dbd, buflen;
|
608 | ebddfcbe | Gerd Hoffmann | uint8_t *p; |
609 | ebddfcbe | Gerd Hoffmann | |
610 | ebddfcbe | Gerd Hoffmann | dbd = req->cmd.buf[1] & 0x8; |
611 | ebddfcbe | Gerd Hoffmann | page = req->cmd.buf[2] & 0x3f; |
612 | ebddfcbe | Gerd Hoffmann | DPRINTF("Mode Sense (page %d, len %zd)\n", page, req->cmd.xfer);
|
613 | ebddfcbe | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
614 | ebddfcbe | Gerd Hoffmann | p = outbuf; |
615 | ebddfcbe | Gerd Hoffmann | |
616 | ebddfcbe | Gerd Hoffmann | p[1] = 0; /* Default media type. */ |
617 | ebddfcbe | Gerd Hoffmann | p[3] = 0; /* Block descriptor length. */ |
618 | 0056dcc1 | Naphtali Sprei | if (bdrv_is_read_only(s->bs)) {
|
619 | ebddfcbe | Gerd Hoffmann | p[2] = 0x80; /* Readonly. */ |
620 | ebddfcbe | Gerd Hoffmann | } |
621 | ebddfcbe | Gerd Hoffmann | p += 4;
|
622 | ebddfcbe | Gerd Hoffmann | |
623 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
624 | ebddfcbe | Gerd Hoffmann | if ((~dbd) & nb_sectors) {
|
625 | ebddfcbe | Gerd Hoffmann | outbuf[3] = 8; /* Block descriptor length */ |
626 | ebddfcbe | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
627 | ebddfcbe | Gerd Hoffmann | nb_sectors--; |
628 | ebddfcbe | Gerd Hoffmann | if (nb_sectors > 0xffffff) |
629 | ebddfcbe | Gerd Hoffmann | nb_sectors = 0xffffff;
|
630 | ebddfcbe | Gerd Hoffmann | p[0] = 0; /* media density code */ |
631 | ebddfcbe | Gerd Hoffmann | p[1] = (nb_sectors >> 16) & 0xff; |
632 | ebddfcbe | Gerd Hoffmann | p[2] = (nb_sectors >> 8) & 0xff; |
633 | ebddfcbe | Gerd Hoffmann | p[3] = nb_sectors & 0xff; |
634 | ebddfcbe | Gerd Hoffmann | p[4] = 0; /* reserved */ |
635 | ebddfcbe | Gerd Hoffmann | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
636 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
637 | ebddfcbe | Gerd Hoffmann | p[7] = 0; |
638 | ebddfcbe | Gerd Hoffmann | p += 8;
|
639 | ebddfcbe | Gerd Hoffmann | } |
640 | ebddfcbe | Gerd Hoffmann | |
641 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
642 | ebddfcbe | Gerd Hoffmann | case 0x04: |
643 | ebddfcbe | Gerd Hoffmann | case 0x05: |
644 | ebddfcbe | Gerd Hoffmann | case 0x08: |
645 | ebddfcbe | Gerd Hoffmann | case 0x2a: |
646 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, page, p); |
647 | ebddfcbe | Gerd Hoffmann | break;
|
648 | ebddfcbe | Gerd Hoffmann | case 0x3f: |
649 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, 0x08, p);
|
650 | ebddfcbe | Gerd Hoffmann | p += mode_sense_page(req, 0x2a, p);
|
651 | ebddfcbe | Gerd Hoffmann | break;
|
652 | ebddfcbe | Gerd Hoffmann | } |
653 | ebddfcbe | Gerd Hoffmann | |
654 | ebddfcbe | Gerd Hoffmann | buflen = p - outbuf; |
655 | ebddfcbe | Gerd Hoffmann | outbuf[0] = buflen - 4; |
656 | ebddfcbe | Gerd Hoffmann | if (buflen > req->cmd.xfer)
|
657 | ebddfcbe | Gerd Hoffmann | buflen = req->cmd.xfer; |
658 | ebddfcbe | Gerd Hoffmann | return buflen;
|
659 | ebddfcbe | Gerd Hoffmann | } |
660 | ebddfcbe | Gerd Hoffmann | |
661 | 02880f43 | Gerd Hoffmann | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
662 | 02880f43 | Gerd Hoffmann | { |
663 | 02880f43 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
664 | 02880f43 | Gerd Hoffmann | int start_track, format, msf, toclen;
|
665 | 02880f43 | Gerd Hoffmann | uint64_t nb_sectors; |
666 | 02880f43 | Gerd Hoffmann | |
667 | 02880f43 | Gerd Hoffmann | msf = req->cmd.buf[1] & 2; |
668 | 02880f43 | Gerd Hoffmann | format = req->cmd.buf[2] & 0xf; |
669 | 02880f43 | Gerd Hoffmann | start_track = req->cmd.buf[6];
|
670 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
671 | 02880f43 | Gerd Hoffmann | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
672 | 02880f43 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
673 | 02880f43 | Gerd Hoffmann | switch (format) {
|
674 | 02880f43 | Gerd Hoffmann | case 0: |
675 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
676 | 02880f43 | Gerd Hoffmann | break;
|
677 | 02880f43 | Gerd Hoffmann | case 1: |
678 | 02880f43 | Gerd Hoffmann | /* multi session : only a single session defined */
|
679 | 02880f43 | Gerd Hoffmann | toclen = 12;
|
680 | 02880f43 | Gerd Hoffmann | memset(outbuf, 0, 12); |
681 | 02880f43 | Gerd Hoffmann | outbuf[1] = 0x0a; |
682 | 02880f43 | Gerd Hoffmann | outbuf[2] = 0x01; |
683 | 02880f43 | Gerd Hoffmann | outbuf[3] = 0x01; |
684 | 02880f43 | Gerd Hoffmann | break;
|
685 | 02880f43 | Gerd Hoffmann | case 2: |
686 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
687 | 02880f43 | Gerd Hoffmann | break;
|
688 | 02880f43 | Gerd Hoffmann | default:
|
689 | 02880f43 | Gerd Hoffmann | return -1; |
690 | 02880f43 | Gerd Hoffmann | } |
691 | 02880f43 | Gerd Hoffmann | if (toclen > req->cmd.xfer)
|
692 | 02880f43 | Gerd Hoffmann | toclen = req->cmd.xfer; |
693 | 02880f43 | Gerd Hoffmann | return toclen;
|
694 | 02880f43 | Gerd Hoffmann | } |
695 | 02880f43 | Gerd Hoffmann | |
696 | aa5dbdc1 | Gerd Hoffmann | static int scsi_disk_emulate_command(SCSIRequest *req, uint8_t *outbuf) |
697 | aa5dbdc1 | Gerd Hoffmann | { |
698 | e7e25e32 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
699 | e7e25e32 | Gerd Hoffmann | uint64_t nb_sectors; |
700 | aa5dbdc1 | Gerd Hoffmann | int buflen = 0; |
701 | aa5dbdc1 | Gerd Hoffmann | |
702 | aa5dbdc1 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
703 | aa5dbdc1 | Gerd Hoffmann | case TEST_UNIT_READY:
|
704 | 428c149b | Christoph Hellwig | if (!bdrv_is_inserted(s->bs))
|
705 | aa5dbdc1 | Gerd Hoffmann | goto not_ready;
|
706 | aa5dbdc1 | Gerd Hoffmann | break;
|
707 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
708 | 51ad87c9 | Gerd Hoffmann | if (req->cmd.xfer < 4) |
709 | 51ad87c9 | Gerd Hoffmann | goto illegal_request;
|
710 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 4); |
711 | 51ad87c9 | Gerd Hoffmann | buflen = 4;
|
712 | 51ad87c9 | Gerd Hoffmann | if (req->dev->sense.key == NOT_READY && req->cmd.xfer >= 18) { |
713 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 18); |
714 | 51ad87c9 | Gerd Hoffmann | buflen = 18;
|
715 | 51ad87c9 | Gerd Hoffmann | outbuf[7] = 10; |
716 | 51ad87c9 | Gerd Hoffmann | /* asc 0x3a, ascq 0: Medium not present */
|
717 | 51ad87c9 | Gerd Hoffmann | outbuf[12] = 0x3a; |
718 | 51ad87c9 | Gerd Hoffmann | outbuf[13] = 0; |
719 | 51ad87c9 | Gerd Hoffmann | } |
720 | 51ad87c9 | Gerd Hoffmann | outbuf[0] = 0xf0; |
721 | 51ad87c9 | Gerd Hoffmann | outbuf[1] = 0; |
722 | 51ad87c9 | Gerd Hoffmann | outbuf[2] = req->dev->sense.key;
|
723 | 51ad87c9 | Gerd Hoffmann | scsi_dev_clear_sense(req->dev); |
724 | 51ad87c9 | Gerd Hoffmann | break;
|
725 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
726 | 0b06c059 | Gerd Hoffmann | buflen = scsi_disk_emulate_inquiry(req, outbuf); |
727 | 0b06c059 | Gerd Hoffmann | if (buflen < 0) |
728 | 0b06c059 | Gerd Hoffmann | goto illegal_request;
|
729 | 0b06c059 | Gerd Hoffmann | break;
|
730 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
731 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
732 | ebddfcbe | Gerd Hoffmann | buflen = scsi_disk_emulate_mode_sense(req, outbuf); |
733 | ebddfcbe | Gerd Hoffmann | if (buflen < 0) |
734 | ebddfcbe | Gerd Hoffmann | goto illegal_request;
|
735 | ebddfcbe | Gerd Hoffmann | break;
|
736 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
737 | 02880f43 | Gerd Hoffmann | buflen = scsi_disk_emulate_read_toc(req, outbuf); |
738 | 02880f43 | Gerd Hoffmann | if (buflen < 0) |
739 | 02880f43 | Gerd Hoffmann | goto illegal_request;
|
740 | 02880f43 | Gerd Hoffmann | break;
|
741 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
742 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
743 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
744 | 3d53ba18 | Gerd Hoffmann | break;
|
745 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
746 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
747 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
748 | 3d53ba18 | Gerd Hoffmann | break;
|
749 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
750 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
751 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
752 | 3d53ba18 | Gerd Hoffmann | break;
|
753 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
754 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
755 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
756 | 3d53ba18 | Gerd Hoffmann | break;
|
757 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
758 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM && (req->cmd.buf[4] & 2)) { |
759 | 8d3628ff | Gerd Hoffmann | /* load/eject medium */
|
760 | 428c149b | Christoph Hellwig | bdrv_eject(s->bs, !(req->cmd.buf[4] & 1)); |
761 | 8d3628ff | Gerd Hoffmann | } |
762 | 8d3628ff | Gerd Hoffmann | break;
|
763 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
764 | 428c149b | Christoph Hellwig | bdrv_set_locked(s->bs, req->cmd.buf[4] & 1); |
765 | c68b9f34 | Gerd Hoffmann | break;
|
766 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
767 | e7e25e32 | Gerd Hoffmann | /* The normal LEN field for this command is zero. */
|
768 | e7e25e32 | Gerd Hoffmann | memset(outbuf, 0, 8); |
769 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
770 | e7e25e32 | Gerd Hoffmann | if (!nb_sectors)
|
771 | e7e25e32 | Gerd Hoffmann | goto not_ready;
|
772 | e7e25e32 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
773 | e7e25e32 | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
774 | e7e25e32 | Gerd Hoffmann | nb_sectors--; |
775 | e7e25e32 | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
776 | e7e25e32 | Gerd Hoffmann | s->max_lba = nb_sectors; |
777 | e7e25e32 | Gerd Hoffmann | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
778 | e7e25e32 | Gerd Hoffmann | if (nb_sectors > UINT32_MAX)
|
779 | e7e25e32 | Gerd Hoffmann | nb_sectors = UINT32_MAX; |
780 | e7e25e32 | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 24) & 0xff; |
781 | e7e25e32 | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 16) & 0xff; |
782 | e7e25e32 | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 8) & 0xff; |
783 | e7e25e32 | Gerd Hoffmann | outbuf[3] = nb_sectors & 0xff; |
784 | e7e25e32 | Gerd Hoffmann | outbuf[4] = 0; |
785 | e7e25e32 | Gerd Hoffmann | outbuf[5] = 0; |
786 | e7e25e32 | Gerd Hoffmann | outbuf[6] = s->cluster_size * 2; |
787 | e7e25e32 | Gerd Hoffmann | outbuf[7] = 0; |
788 | e7e25e32 | Gerd Hoffmann | buflen = 8;
|
789 | e7e25e32 | Gerd Hoffmann | break;
|
790 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
791 | 428c149b | Christoph Hellwig | bdrv_flush(s->bs); |
792 | fc903943 | Gerd Hoffmann | break;
|
793 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
794 | 38215553 | Gerd Hoffmann | memset(outbuf, 0, 8); |
795 | 38215553 | Gerd Hoffmann | /* ??? This should probably return much more information. For now
|
796 | 38215553 | Gerd Hoffmann | just return the basic header indicating the CD-ROM profile. */
|
797 | 38215553 | Gerd Hoffmann | outbuf[7] = 8; // CD-ROM |
798 | 38215553 | Gerd Hoffmann | buflen = 8;
|
799 | 38215553 | Gerd Hoffmann | break;
|
800 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
801 | 5dd90e2a | Gerd Hoffmann | /* Service Action In subcommands. */
|
802 | 5dd90e2a | Gerd Hoffmann | if ((req->cmd.buf[1] & 31) == 0x10) { |
803 | 5dd90e2a | Gerd Hoffmann | DPRINTF("SAI READ CAPACITY(16)\n");
|
804 | 5dd90e2a | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
805 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
806 | 5dd90e2a | Gerd Hoffmann | if (!nb_sectors)
|
807 | 5dd90e2a | Gerd Hoffmann | goto not_ready;
|
808 | 5dd90e2a | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
809 | 5dd90e2a | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
810 | 5dd90e2a | Gerd Hoffmann | nb_sectors--; |
811 | 5dd90e2a | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
812 | 5dd90e2a | Gerd Hoffmann | s->max_lba = nb_sectors; |
813 | 5dd90e2a | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 56) & 0xff; |
814 | 5dd90e2a | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 48) & 0xff; |
815 | 5dd90e2a | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 40) & 0xff; |
816 | 5dd90e2a | Gerd Hoffmann | outbuf[3] = (nb_sectors >> 32) & 0xff; |
817 | 5dd90e2a | Gerd Hoffmann | outbuf[4] = (nb_sectors >> 24) & 0xff; |
818 | 5dd90e2a | Gerd Hoffmann | outbuf[5] = (nb_sectors >> 16) & 0xff; |
819 | 5dd90e2a | Gerd Hoffmann | outbuf[6] = (nb_sectors >> 8) & 0xff; |
820 | 5dd90e2a | Gerd Hoffmann | outbuf[7] = nb_sectors & 0xff; |
821 | 5dd90e2a | Gerd Hoffmann | outbuf[8] = 0; |
822 | 5dd90e2a | Gerd Hoffmann | outbuf[9] = 0; |
823 | 5dd90e2a | Gerd Hoffmann | outbuf[10] = s->cluster_size * 2; |
824 | 5dd90e2a | Gerd Hoffmann | outbuf[11] = 0; |
825 | ee3659e3 | Christoph Hellwig | outbuf[12] = 0; |
826 | ee3659e3 | Christoph Hellwig | outbuf[13] = get_physical_block_exp(&s->qdev.conf);
|
827 | 5dd90e2a | Gerd Hoffmann | /* Protection, exponent and lowest lba field left blank. */
|
828 | 5dd90e2a | Gerd Hoffmann | buflen = req->cmd.xfer; |
829 | 5dd90e2a | Gerd Hoffmann | break;
|
830 | 5dd90e2a | Gerd Hoffmann | } |
831 | 5dd90e2a | Gerd Hoffmann | DPRINTF("Unsupported Service Action In\n");
|
832 | 5dd90e2a | Gerd Hoffmann | goto illegal_request;
|
833 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
834 | 39ec9a50 | Gerd Hoffmann | if (req->cmd.xfer < 16) |
835 | 39ec9a50 | Gerd Hoffmann | goto illegal_request;
|
836 | 39ec9a50 | Gerd Hoffmann | memset(outbuf, 0, 16); |
837 | 39ec9a50 | Gerd Hoffmann | outbuf[3] = 8; |
838 | 39ec9a50 | Gerd Hoffmann | buflen = 16;
|
839 | 39ec9a50 | Gerd Hoffmann | break;
|
840 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
841 | 88f8a5ed | Gerd Hoffmann | break;
|
842 | aa5dbdc1 | Gerd Hoffmann | default:
|
843 | aa5dbdc1 | Gerd Hoffmann | goto illegal_request;
|
844 | aa5dbdc1 | Gerd Hoffmann | } |
845 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, GOOD, NO_SENSE); |
846 | aa5dbdc1 | Gerd Hoffmann | return buflen;
|
847 | aa5dbdc1 | Gerd Hoffmann | |
848 | aa5dbdc1 | Gerd Hoffmann | not_ready:
|
849 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, CHECK_CONDITION, NOT_READY); |
850 | aa5dbdc1 | Gerd Hoffmann | return 0; |
851 | aa5dbdc1 | Gerd Hoffmann | |
852 | aa5dbdc1 | Gerd Hoffmann | illegal_request:
|
853 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, CHECK_CONDITION, ILLEGAL_REQUEST); |
854 | aa5dbdc1 | Gerd Hoffmann | return 0; |
855 | aa5dbdc1 | Gerd Hoffmann | } |
856 | aa5dbdc1 | Gerd Hoffmann | |
857 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
858 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
859 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
860 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
861 | 2e5d83bb | pbrook | |
862 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
863 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
864 | 2e5d83bb | pbrook | { |
865 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
866 | 86106e59 | aliguori | uint64_t lba; |
867 | 2e5d83bb | pbrook | uint32_t len; |
868 | 2e5d83bb | pbrook | int cmdlen;
|
869 | 2e5d83bb | pbrook | int is_write;
|
870 | a917d384 | pbrook | uint8_t command; |
871 | a917d384 | pbrook | uint8_t *outbuf; |
872 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
873 | aa5dbdc1 | Gerd Hoffmann | int rc;
|
874 | a917d384 | pbrook | |
875 | a917d384 | pbrook | command = buf[0];
|
876 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
877 | a917d384 | pbrook | if (r) {
|
878 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
879 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
880 | a917d384 | pbrook | } |
881 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
882 | a917d384 | pbrook | single lun, so this should not matter. */
|
883 | 89b08ae1 | Gerd Hoffmann | r = scsi_new_request(d, tag, lun); |
884 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
885 | 2e5d83bb | pbrook | is_write = 0;
|
886 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
887 | a917d384 | pbrook | switch (command >> 5) { |
888 | 2e5d83bb | pbrook | case 0: |
889 | 86106e59 | aliguori | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
890 | 86106e59 | aliguori | (((uint64_t) buf[1] & 0x1f) << 16); |
891 | 2e5d83bb | pbrook | len = buf[4];
|
892 | 2e5d83bb | pbrook | cmdlen = 6;
|
893 | 2e5d83bb | pbrook | break;
|
894 | 2e5d83bb | pbrook | case 1: |
895 | 2e5d83bb | pbrook | case 2: |
896 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
897 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
898 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
899 | 2e5d83bb | pbrook | cmdlen = 10;
|
900 | 2e5d83bb | pbrook | break;
|
901 | 2e5d83bb | pbrook | case 4: |
902 | 86106e59 | aliguori | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
903 | 86106e59 | aliguori | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
904 | 86106e59 | aliguori | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
905 | 86106e59 | aliguori | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
906 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
907 | 2e5d83bb | pbrook | cmdlen = 16;
|
908 | 2e5d83bb | pbrook | break;
|
909 | 2e5d83bb | pbrook | case 5: |
910 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
911 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
912 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
913 | 2e5d83bb | pbrook | cmdlen = 12;
|
914 | 2e5d83bb | pbrook | break;
|
915 | 2e5d83bb | pbrook | default:
|
916 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
917 | 2e5d83bb | pbrook | goto fail;
|
918 | 2e5d83bb | pbrook | } |
919 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
920 | 2e5d83bb | pbrook | { |
921 | 2e5d83bb | pbrook | int i;
|
922 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
923 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
924 | 2e5d83bb | pbrook | } |
925 | 2e5d83bb | pbrook | printf("\n");
|
926 | 2e5d83bb | pbrook | } |
927 | 2e5d83bb | pbrook | #endif
|
928 | aa5dbdc1 | Gerd Hoffmann | |
929 | aa5dbdc1 | Gerd Hoffmann | if (scsi_req_parse(&r->req, buf) != 0) { |
930 | aa5dbdc1 | Gerd Hoffmann | BADF("Unsupported command length, command %x\n", command);
|
931 | aa5dbdc1 | Gerd Hoffmann | goto fail;
|
932 | aa5dbdc1 | Gerd Hoffmann | } |
933 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.len == cmdlen); |
934 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.lba == lba); |
935 | aa5dbdc1 | Gerd Hoffmann | |
936 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
937 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
938 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
939 | ebf46023 | Gerd Hoffmann | if (command != REQUEST_SENSE && command != INQUIRY)
|
940 | 22864256 | blueswir1 | goto fail;
|
941 | 2e5d83bb | pbrook | } |
942 | a917d384 | pbrook | switch (command) {
|
943 | ebf46023 | Gerd Hoffmann | case TEST_UNIT_READY:
|
944 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
945 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
946 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
947 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
948 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
949 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
950 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
951 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
952 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
953 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
954 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
955 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
956 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
957 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
958 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
959 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
960 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
961 | aa5dbdc1 | Gerd Hoffmann | rc = scsi_disk_emulate_command(&r->req, outbuf); |
962 | aa5dbdc1 | Gerd Hoffmann | if (rc > 0) { |
963 | aa5dbdc1 | Gerd Hoffmann | r->iov.iov_len = rc; |
964 | aa5dbdc1 | Gerd Hoffmann | } else {
|
965 | aa5dbdc1 | Gerd Hoffmann | scsi_req_complete(&r->req); |
966 | aa5dbdc1 | Gerd Hoffmann | scsi_remove_request(r); |
967 | 0b06c059 | Gerd Hoffmann | return 0; |
968 | aa5dbdc1 | Gerd Hoffmann | } |
969 | 0b06c059 | Gerd Hoffmann | break;
|
970 | ebf46023 | Gerd Hoffmann | case READ_6:
|
971 | ebf46023 | Gerd Hoffmann | case READ_10:
|
972 | bd536cf3 | Gerd Hoffmann | case READ_12:
|
973 | bd536cf3 | Gerd Hoffmann | case READ_16:
|
974 | 0bf9e31a | Blue Swirl | DPRINTF("Read (sector %" PRId64 ", count %d)\n", lba, len); |
975 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
976 | 274fb0e1 | aliguori | goto illegal_lba;
|
977 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
978 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
979 | 2e5d83bb | pbrook | break;
|
980 | ebf46023 | Gerd Hoffmann | case WRITE_6:
|
981 | ebf46023 | Gerd Hoffmann | case WRITE_10:
|
982 | bd536cf3 | Gerd Hoffmann | case WRITE_12:
|
983 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
984 | 0bf9e31a | Blue Swirl | DPRINTF("Write (sector %" PRId64 ", count %d)\n", lba, len); |
985 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
986 | 274fb0e1 | aliguori | goto illegal_lba;
|
987 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
988 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
989 | 2e5d83bb | pbrook | is_write = 1;
|
990 | 2e5d83bb | pbrook | break;
|
991 | 2e5d83bb | pbrook | default:
|
992 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
993 | 2e5d83bb | pbrook | fail:
|
994 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
995 | 2e5d83bb | pbrook | return 0; |
996 | 274fb0e1 | aliguori | illegal_lba:
|
997 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
998 | 274fb0e1 | aliguori | return 0; |
999 | 2e5d83bb | pbrook | } |
1000 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
1001 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
1002 | a917d384 | pbrook | } |
1003 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
1004 | a917d384 | pbrook | if (is_write) {
|
1005 | a917d384 | pbrook | return -len;
|
1006 | a917d384 | pbrook | } else {
|
1007 | a917d384 | pbrook | if (!r->sector_count)
|
1008 | a917d384 | pbrook | r->sector_count = -1;
|
1009 | a917d384 | pbrook | return len;
|
1010 | 2e5d83bb | pbrook | } |
1011 | 2e5d83bb | pbrook | } |
1012 | 2e5d83bb | pbrook | |
1013 | e9447f35 | Jan Kiszka | static void scsi_disk_purge_requests(SCSIDiskState *s) |
1014 | 56a14938 | Gerd Hoffmann | { |
1015 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
1016 | 56a14938 | Gerd Hoffmann | |
1017 | 9af99d98 | Gerd Hoffmann | while (!QTAILQ_EMPTY(&s->qdev.requests)) {
|
1018 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, QTAILQ_FIRST(&s->qdev.requests)); |
1019 | e9447f35 | Jan Kiszka | if (r->req.aiocb) {
|
1020 | e9447f35 | Jan Kiszka | bdrv_aio_cancel(r->req.aiocb); |
1021 | e9447f35 | Jan Kiszka | } |
1022 | 9af99d98 | Gerd Hoffmann | scsi_remove_request(r); |
1023 | 9af99d98 | Gerd Hoffmann | } |
1024 | e9447f35 | Jan Kiszka | } |
1025 | e9447f35 | Jan Kiszka | |
1026 | e9447f35 | Jan Kiszka | static void scsi_disk_reset(DeviceState *dev) |
1027 | e9447f35 | Jan Kiszka | { |
1028 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); |
1029 | e9447f35 | Jan Kiszka | uint64_t nb_sectors; |
1030 | e9447f35 | Jan Kiszka | |
1031 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1032 | e9447f35 | Jan Kiszka | |
1033 | e9447f35 | Jan Kiszka | bdrv_get_geometry(s->bs, &nb_sectors); |
1034 | e9447f35 | Jan Kiszka | nb_sectors /= s->cluster_size; |
1035 | e9447f35 | Jan Kiszka | if (nb_sectors) {
|
1036 | e9447f35 | Jan Kiszka | nb_sectors--; |
1037 | e9447f35 | Jan Kiszka | } |
1038 | e9447f35 | Jan Kiszka | s->max_lba = nb_sectors; |
1039 | e9447f35 | Jan Kiszka | } |
1040 | e9447f35 | Jan Kiszka | |
1041 | e9447f35 | Jan Kiszka | static void scsi_destroy(SCSIDevice *dev) |
1042 | e9447f35 | Jan Kiszka | { |
1043 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1044 | e9447f35 | Jan Kiszka | |
1045 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1046 | 428c149b | Christoph Hellwig | drive_uninit(s->qdev.conf.dinfo); |
1047 | 56a14938 | Gerd Hoffmann | } |
1048 | 56a14938 | Gerd Hoffmann | |
1049 | d52affa7 | Gerd Hoffmann | static int scsi_disk_initfn(SCSIDevice *dev) |
1050 | 2e5d83bb | pbrook | { |
1051 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1052 | 2e5d83bb | pbrook | |
1053 | 428c149b | Christoph Hellwig | if (!s->qdev.conf.dinfo || !s->qdev.conf.dinfo->bdrv) {
|
1054 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: drive property not set");
|
1055 | d52affa7 | Gerd Hoffmann | return -1; |
1056 | d52affa7 | Gerd Hoffmann | } |
1057 | 428c149b | Christoph Hellwig | s->bs = s->qdev.conf.dinfo->bdrv; |
1058 | d52affa7 | Gerd Hoffmann | |
1059 | a0fef654 | Markus Armbruster | if (!s->serial) {
|
1060 | a0fef654 | Markus Armbruster | if (*dev->conf.dinfo->serial) {
|
1061 | a0fef654 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
|
1062 | a0fef654 | Markus Armbruster | s->serial = qemu_strdup(dev->conf.dinfo->serial); |
1063 | a0fef654 | Markus Armbruster | } else {
|
1064 | a0fef654 | Markus Armbruster | s->serial = qemu_strdup("0");
|
1065 | a0fef654 | Markus Armbruster | } |
1066 | a0fef654 | Markus Armbruster | } |
1067 | a0fef654 | Markus Armbruster | |
1068 | 552fee93 | Markus Armbruster | if (!s->version) {
|
1069 | 552fee93 | Markus Armbruster | s->version = qemu_strdup(QEMU_VERSION); |
1070 | 552fee93 | Markus Armbruster | } |
1071 | 552fee93 | Markus Armbruster | |
1072 | 32bb404a | Markus Armbruster | if (bdrv_is_sg(s->bs)) {
|
1073 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: unwanted /dev/sg*");
|
1074 | 32bb404a | Markus Armbruster | return -1; |
1075 | 32bb404a | Markus Armbruster | } |
1076 | 32bb404a | Markus Armbruster | |
1077 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
1078 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = 2048;
|
1079 | 2e5d83bb | pbrook | } else {
|
1080 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
1081 | 2e5d83bb | pbrook | } |
1082 | 8cfacf07 | Christoph Hellwig | s->cluster_size = s->qdev.blocksize / 512;
|
1083 | 8cfacf07 | Christoph Hellwig | |
1084 | 91376656 | Gerd Hoffmann | s->qdev.type = TYPE_DISK; |
1085 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
1086 | d52affa7 | Gerd Hoffmann | return 0; |
1087 | d52affa7 | Gerd Hoffmann | } |
1088 | d52affa7 | Gerd Hoffmann | |
1089 | d52affa7 | Gerd Hoffmann | static SCSIDeviceInfo scsi_disk_info = {
|
1090 | d52affa7 | Gerd Hoffmann | .qdev.name = "scsi-disk",
|
1091 | d52affa7 | Gerd Hoffmann | .qdev.desc = "virtual scsi disk or cdrom",
|
1092 | d52affa7 | Gerd Hoffmann | .qdev.size = sizeof(SCSIDiskState),
|
1093 | e9447f35 | Jan Kiszka | .qdev.reset = scsi_disk_reset, |
1094 | d52affa7 | Gerd Hoffmann | .init = scsi_disk_initfn, |
1095 | 56a14938 | Gerd Hoffmann | .destroy = scsi_destroy, |
1096 | d52affa7 | Gerd Hoffmann | .send_command = scsi_send_command, |
1097 | d52affa7 | Gerd Hoffmann | .read_data = scsi_read_data, |
1098 | d52affa7 | Gerd Hoffmann | .write_data = scsi_write_data, |
1099 | d52affa7 | Gerd Hoffmann | .cancel_io = scsi_cancel_io, |
1100 | d52affa7 | Gerd Hoffmann | .get_buf = scsi_get_buf, |
1101 | d52affa7 | Gerd Hoffmann | .qdev.props = (Property[]) { |
1102 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), |
1103 | 383b4d9b | Gerd Hoffmann | DEFINE_PROP_STRING("ver", SCSIDiskState, version),
|
1104 | a0fef654 | Markus Armbruster | DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
|
1105 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
1106 | d52affa7 | Gerd Hoffmann | }, |
1107 | d52affa7 | Gerd Hoffmann | }; |
1108 | d52affa7 | Gerd Hoffmann | |
1109 | d52affa7 | Gerd Hoffmann | static void scsi_disk_register_devices(void) |
1110 | d52affa7 | Gerd Hoffmann | { |
1111 | d52affa7 | Gerd Hoffmann | scsi_qdev_register(&scsi_disk_info); |
1112 | 8ccc2ace | ths | } |
1113 | d52affa7 | Gerd Hoffmann | device_init(scsi_disk_register_devices) |