root / hw / scsi-disk.c @ e6e055c9
History | View | Annotate | Download (37.2 kB)
1 | 2e5d83bb | pbrook | /*
|
---|---|---|---|
2 | 2e5d83bb | pbrook | * SCSI Device emulation
|
3 | 2e5d83bb | pbrook | *
|
4 | 2e5d83bb | pbrook | * Copyright (c) 2006 CodeSourcery.
|
5 | 2e5d83bb | pbrook | * Based on code by Fabrice Bellard
|
6 | 2e5d83bb | pbrook | *
|
7 | 2e5d83bb | pbrook | * Written by Paul Brook
|
8 | ad3cea42 | Artyom Tarasenko | * Modifications:
|
9 | ad3cea42 | Artyom Tarasenko | * 2009-Dec-12 Artyom Tarasenko : implemented stamdard inquiry for the case
|
10 | ad3cea42 | Artyom Tarasenko | * when the allocation length of CDB is smaller
|
11 | ad3cea42 | Artyom Tarasenko | * than 36.
|
12 | ad3cea42 | Artyom Tarasenko | * 2009-Oct-13 Artyom Tarasenko : implemented the block descriptor in the
|
13 | ad3cea42 | Artyom Tarasenko | * MODE SENSE response.
|
14 | 2e5d83bb | pbrook | *
|
15 | 2e5d83bb | pbrook | * This code is licenced under the LGPL.
|
16 | a917d384 | pbrook | *
|
17 | a917d384 | pbrook | * Note that this file only handles the SCSI architecture model and device
|
18 | 1d4db89c | balrog | * commands. Emulation of interface/link layer protocols is handled by
|
19 | 1d4db89c | balrog | * the host adapter emulator.
|
20 | 2e5d83bb | pbrook | */
|
21 | 2e5d83bb | pbrook | |
22 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
|
23 | 2e5d83bb | pbrook | |
24 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
25 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
|
26 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
27 | 2e5d83bb | pbrook | #else
|
28 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
29 | 2e5d83bb | pbrook | #endif
|
30 | 2e5d83bb | pbrook | |
31 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
|
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 | 2446333c | Blue Swirl | #include "blockdev.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 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY 0x01 |
45 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_TYPE_MASK 0x06 |
46 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_READ 0x00 |
47 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_WRITE 0x02 |
48 | 78ced65e | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_FLUSH 0x04 |
49 | ea8a5d7f | aliguori | |
50 | d52affa7 | Gerd Hoffmann | typedef struct SCSIDiskState SCSIDiskState; |
51 | d52affa7 | Gerd Hoffmann | |
52 | a6d96eb7 | Hannes Reinecke | typedef struct SCSISense { |
53 | a6d96eb7 | Hannes Reinecke | uint8_t key; |
54 | a6d96eb7 | Hannes Reinecke | } SCSISense; |
55 | a6d96eb7 | Hannes Reinecke | |
56 | 4c41d2ef | Gerd Hoffmann | typedef struct SCSIDiskReq { |
57 | 4c41d2ef | Gerd Hoffmann | SCSIRequest req; |
58 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
|
59 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
|
60 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
|
61 | e035b43d | aliguori | uint64_t sector; |
62 | e035b43d | aliguori | uint32_t sector_count; |
63 | c87c0672 | aliguori | struct iovec iov;
|
64 | c87c0672 | aliguori | QEMUIOVector qiov; |
65 | ea8a5d7f | aliguori | uint32_t status; |
66 | 4c41d2ef | Gerd Hoffmann | } SCSIDiskReq; |
67 | a917d384 | pbrook | |
68 | d52affa7 | Gerd Hoffmann | struct SCSIDiskState
|
69 | a917d384 | pbrook | { |
70 | d52affa7 | Gerd Hoffmann | SCSIDevice qdev; |
71 | 428c149b | Christoph Hellwig | BlockDriverState *bs; |
72 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
|
73 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
|
74 | a917d384 | pbrook | int cluster_size;
|
75 | 274fb0e1 | aliguori | uint64_t max_lba; |
76 | 213189ab | Markus Armbruster | QEMUBH *bh; |
77 | 383b4d9b | Gerd Hoffmann | char *version;
|
78 | a0fef654 | Markus Armbruster | char *serial;
|
79 | a6d96eb7 | Hannes Reinecke | SCSISense sense; |
80 | 2e5d83bb | pbrook | }; |
81 | 2e5d83bb | pbrook | |
82 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type); |
83 | 78ced65e | Kevin Wolf | static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf); |
84 | 5dba48a8 | Kevin Wolf | |
85 | 72aef731 | Christoph Hellwig | static SCSIDiskReq *scsi_new_request(SCSIDiskState *s, uint32_t tag,
|
86 | 72aef731 | Christoph Hellwig | uint32_t lun) |
87 | 2e5d83bb | pbrook | { |
88 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *req; |
89 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
90 | a917d384 | pbrook | |
91 | 72aef731 | Christoph Hellwig | req = scsi_req_alloc(sizeof(SCSIDiskReq), &s->qdev, tag, lun);
|
92 | 89b08ae1 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
93 | 72aef731 | Christoph Hellwig | r->iov.iov_base = qemu_blockalign(s->bs, SCSI_DMA_BUF_SIZE); |
94 | a917d384 | pbrook | return r;
|
95 | 2e5d83bb | pbrook | } |
96 | 2e5d83bb | pbrook | |
97 | 4c41d2ef | Gerd Hoffmann | static void scsi_remove_request(SCSIDiskReq *r) |
98 | 4d611c9a | pbrook | { |
99 | f8a83245 | Herve Poussineau | qemu_vfree(r->iov.iov_base); |
100 | 89b08ae1 | Gerd Hoffmann | scsi_req_free(&r->req); |
101 | 4d611c9a | pbrook | } |
102 | 4d611c9a | pbrook | |
103 | 4c41d2ef | Gerd Hoffmann | static SCSIDiskReq *scsi_find_request(SCSIDiskState *s, uint32_t tag)
|
104 | 4d611c9a | pbrook | { |
105 | 89b08ae1 | Gerd Hoffmann | return DO_UPCAST(SCSIDiskReq, req, scsi_req_find(&s->qdev, tag));
|
106 | a917d384 | pbrook | } |
107 | a917d384 | pbrook | |
108 | a6d96eb7 | Hannes Reinecke | static void scsi_disk_clear_sense(SCSIDiskState *s) |
109 | ed3a34a3 | Gerd Hoffmann | { |
110 | a6d96eb7 | Hannes Reinecke | memset(&s->sense, 0, sizeof(s->sense)); |
111 | a6d96eb7 | Hannes Reinecke | } |
112 | a6d96eb7 | Hannes Reinecke | |
113 | a6d96eb7 | Hannes Reinecke | static void scsi_disk_set_sense(SCSIDiskState *s, uint8_t key) |
114 | a6d96eb7 | Hannes Reinecke | { |
115 | a6d96eb7 | Hannes Reinecke | s->sense.key = key; |
116 | a6d96eb7 | Hannes Reinecke | } |
117 | a6d96eb7 | Hannes Reinecke | |
118 | a6d96eb7 | Hannes Reinecke | static void scsi_req_set_status(SCSIDiskReq *r, int status, int sense_code) |
119 | a6d96eb7 | Hannes Reinecke | { |
120 | a6d96eb7 | Hannes Reinecke | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
121 | a6d96eb7 | Hannes Reinecke | |
122 | a6d96eb7 | Hannes Reinecke | r->req.status = status; |
123 | a6d96eb7 | Hannes Reinecke | scsi_disk_set_sense(s, sense_code); |
124 | ed3a34a3 | Gerd Hoffmann | } |
125 | ed3a34a3 | Gerd Hoffmann | |
126 | a917d384 | pbrook | /* Helper function for command completion. */
|
127 | 4c41d2ef | Gerd Hoffmann | static void scsi_command_complete(SCSIDiskReq *r, int status, int sense) |
128 | a917d384 | pbrook | { |
129 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n",
|
130 | 4c41d2ef | Gerd Hoffmann | r->req.tag, status, sense); |
131 | a6d96eb7 | Hannes Reinecke | scsi_req_set_status(r, status, sense); |
132 | ed3a34a3 | Gerd Hoffmann | scsi_req_complete(&r->req); |
133 | 89b08ae1 | Gerd Hoffmann | scsi_remove_request(r); |
134 | 4d611c9a | pbrook | } |
135 | 4d611c9a | pbrook | |
136 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
|
137 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
138 | 4d611c9a | pbrook | { |
139 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
140 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
141 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
|
142 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
143 | a917d384 | pbrook | if (r) {
|
144 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
|
145 | 4c41d2ef | Gerd Hoffmann | bdrv_aio_cancel(r->req.aiocb); |
146 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
|
147 | a917d384 | pbrook | scsi_remove_request(r); |
148 | a917d384 | pbrook | } |
149 | a917d384 | pbrook | } |
150 | a917d384 | pbrook | |
151 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
152 | a917d384 | pbrook | { |
153 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
154 | 5dba48a8 | Kevin Wolf | int n;
|
155 | a917d384 | pbrook | |
156 | 3e94cb02 | Jan Kiszka | r->req.aiocb = NULL;
|
157 | 3e94cb02 | Jan Kiszka | |
158 | a917d384 | pbrook | if (ret) {
|
159 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_READ)) {
|
160 | 5dba48a8 | Kevin Wolf | return;
|
161 | 5dba48a8 | Kevin Wolf | } |
162 | 4d611c9a | pbrook | } |
163 | 5dba48a8 | Kevin Wolf | |
164 | aa2b1e89 | Bernhard Kohl | DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->iov.iov_len);
|
165 | a917d384 | pbrook | |
166 | 5dba48a8 | Kevin Wolf | n = r->iov.iov_len / 512;
|
167 | 5dba48a8 | Kevin Wolf | r->sector += n; |
168 | 5dba48a8 | Kevin Wolf | r->sector_count -= n; |
169 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
170 | 4d611c9a | pbrook | } |
171 | 4d611c9a | pbrook | |
172 | 5dba48a8 | Kevin Wolf | |
173 | 5dba48a8 | Kevin Wolf | static void scsi_read_request(SCSIDiskReq *r) |
174 | 2e5d83bb | pbrook | { |
175 | 5dba48a8 | Kevin Wolf | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
176 | 2e5d83bb | pbrook | uint32_t n; |
177 | 2e5d83bb | pbrook | |
178 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
179 | aa2b1e89 | Bernhard Kohl | DPRINTF("Read buf_len=%zd\n", r->iov.iov_len);
|
180 | a917d384 | pbrook | r->sector_count = 0;
|
181 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
182 | a917d384 | pbrook | return;
|
183 | 2e5d83bb | pbrook | } |
184 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
|
185 | a917d384 | pbrook | if (r->sector_count == 0) { |
186 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
187 | a917d384 | pbrook | return;
|
188 | 2e5d83bb | pbrook | } |
189 | 2e5d83bb | pbrook | |
190 | 6fa2c95f | Stefan Hajnoczi | /* No data transfer may already be in progress */
|
191 | 6fa2c95f | Stefan Hajnoczi | assert(r->req.aiocb == NULL);
|
192 | 6fa2c95f | Stefan Hajnoczi | |
193 | a917d384 | pbrook | n = r->sector_count; |
194 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
195 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
|
196 | a917d384 | pbrook | |
197 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
|
198 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
199 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_readv(s->bs, r->sector, &r->qiov, n, |
200 | c87c0672 | aliguori | scsi_read_complete, r); |
201 | d33ea50a | Kevin Wolf | if (r->req.aiocb == NULL) { |
202 | d33ea50a | Kevin Wolf | scsi_read_complete(r, -EIO); |
203 | d33ea50a | Kevin Wolf | } |
204 | 2e5d83bb | pbrook | } |
205 | 2e5d83bb | pbrook | |
206 | 5dba48a8 | Kevin Wolf | /* Read more data from scsi device into buffer. */
|
207 | 5dba48a8 | Kevin Wolf | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
208 | ea8a5d7f | aliguori | { |
209 | 5dba48a8 | Kevin Wolf | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
210 | 5dba48a8 | Kevin Wolf | SCSIDiskReq *r; |
211 | 5dba48a8 | Kevin Wolf | |
212 | 5dba48a8 | Kevin Wolf | r = scsi_find_request(s, tag); |
213 | 5dba48a8 | Kevin Wolf | if (!r) {
|
214 | 5dba48a8 | Kevin Wolf | BADF("Bad read tag 0x%x\n", tag);
|
215 | 5dba48a8 | Kevin Wolf | /* ??? This is the wrong error. */
|
216 | 5dba48a8 | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
217 | 5dba48a8 | Kevin Wolf | return;
|
218 | 5dba48a8 | Kevin Wolf | } |
219 | 5dba48a8 | Kevin Wolf | |
220 | 5dba48a8 | Kevin Wolf | scsi_read_request(r); |
221 | 5dba48a8 | Kevin Wolf | } |
222 | 5dba48a8 | Kevin Wolf | |
223 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) |
224 | 5dba48a8 | Kevin Wolf | { |
225 | 5dba48a8 | Kevin Wolf | int is_read = (type == SCSI_REQ_STATUS_RETRY_READ);
|
226 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
227 | 5dba48a8 | Kevin Wolf | BlockErrorAction action = bdrv_get_on_error(s->bs, is_read); |
228 | ea8a5d7f | aliguori | |
229 | 380f640f | Luiz Capitulino | if (action == BLOCK_ERR_IGNORE) {
|
230 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read); |
231 | ea8a5d7f | aliguori | return 0; |
232 | 380f640f | Luiz Capitulino | } |
233 | ea8a5d7f | aliguori | |
234 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
|
235 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
236 | 5dba48a8 | Kevin Wolf | |
237 | 5dba48a8 | Kevin Wolf | type &= SCSI_REQ_STATUS_RETRY_TYPE_MASK; |
238 | 5dba48a8 | Kevin Wolf | r->status |= SCSI_REQ_STATUS_RETRY | type; |
239 | 5dba48a8 | Kevin Wolf | |
240 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); |
241 | 554a310b | Luiz Capitulino | vm_stop(0);
|
242 | ea8a5d7f | aliguori | } else {
|
243 | 5dba48a8 | Kevin Wolf | if (type == SCSI_REQ_STATUS_RETRY_READ) {
|
244 | 5dba48a8 | Kevin Wolf | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, 0);
|
245 | 5dba48a8 | Kevin Wolf | } |
246 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
247 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
248 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); |
249 | ea8a5d7f | aliguori | } |
250 | ea8a5d7f | aliguori | |
251 | ea8a5d7f | aliguori | return 1; |
252 | ea8a5d7f | aliguori | } |
253 | ea8a5d7f | aliguori | |
254 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
255 | 4d611c9a | pbrook | { |
256 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
257 | a917d384 | pbrook | uint32_t len; |
258 | ea8a5d7f | aliguori | uint32_t n; |
259 | ea8a5d7f | aliguori | |
260 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
|
261 | 4d611c9a | pbrook | |
262 | 4d611c9a | pbrook | if (ret) {
|
263 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_WRITE)) {
|
264 | ea8a5d7f | aliguori | return;
|
265 | 5dba48a8 | Kevin Wolf | } |
266 | 4d611c9a | pbrook | } |
267 | 4d611c9a | pbrook | |
268 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
|
269 | ea8a5d7f | aliguori | r->sector += n; |
270 | ea8a5d7f | aliguori | r->sector_count -= n; |
271 | a917d384 | pbrook | if (r->sector_count == 0) { |
272 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
273 | a917d384 | pbrook | } else {
|
274 | a917d384 | pbrook | len = r->sector_count * 512;
|
275 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
|
276 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
277 | a917d384 | pbrook | } |
278 | c87c0672 | aliguori | r->iov.iov_len = len; |
279 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, len);
|
280 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, len); |
281 | 4d611c9a | pbrook | } |
282 | 4d611c9a | pbrook | } |
283 | 4d611c9a | pbrook | |
284 | 4c41d2ef | Gerd Hoffmann | static void scsi_write_request(SCSIDiskReq *r) |
285 | ea8a5d7f | aliguori | { |
286 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
287 | ea8a5d7f | aliguori | uint32_t n; |
288 | ea8a5d7f | aliguori | |
289 | 6fa2c95f | Stefan Hajnoczi | /* No data transfer may already be in progress */
|
290 | 6fa2c95f | Stefan Hajnoczi | assert(r->req.aiocb == NULL);
|
291 | 6fa2c95f | Stefan Hajnoczi | |
292 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
|
293 | ea8a5d7f | aliguori | if (n) {
|
294 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
295 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_writev(s->bs, r->sector, &r->qiov, n, |
296 | c87c0672 | aliguori | scsi_write_complete, r); |
297 | d33ea50a | Kevin Wolf | if (r->req.aiocb == NULL) { |
298 | d33ea50a | Kevin Wolf | scsi_write_complete(r, -EIO); |
299 | d33ea50a | Kevin Wolf | } |
300 | ea8a5d7f | aliguori | } else {
|
301 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
|
302 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
|
303 | ea8a5d7f | aliguori | } |
304 | ea8a5d7f | aliguori | } |
305 | ea8a5d7f | aliguori | |
306 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
|
307 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
|
308 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
309 | 2e5d83bb | pbrook | { |
310 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
311 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
312 | 2e5d83bb | pbrook | |
313 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
|
314 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
315 | a917d384 | pbrook | if (!r) {
|
316 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
|
317 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
318 | 2e5d83bb | pbrook | return 1; |
319 | 2e5d83bb | pbrook | } |
320 | ea8a5d7f | aliguori | |
321 | ea8a5d7f | aliguori | scsi_write_request(r); |
322 | 2e5d83bb | pbrook | |
323 | a917d384 | pbrook | return 0; |
324 | a917d384 | pbrook | } |
325 | 2e5d83bb | pbrook | |
326 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
327 | ea8a5d7f | aliguori | { |
328 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
329 | 9af99d98 | Gerd Hoffmann | SCSIRequest *req; |
330 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
331 | 213189ab | Markus Armbruster | |
332 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
333 | 213189ab | Markus Armbruster | s->bh = NULL;
|
334 | ea8a5d7f | aliguori | |
335 | 9af99d98 | Gerd Hoffmann | QTAILQ_FOREACH(req, &s->qdev.requests, next) { |
336 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
337 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
|
338 | 5dba48a8 | Kevin Wolf | int status = r->status;
|
339 | 78ced65e | Kevin Wolf | int ret;
|
340 | 78ced65e | Kevin Wolf | |
341 | 5dba48a8 | Kevin Wolf | r->status &= |
342 | 5dba48a8 | Kevin Wolf | ~(SCSI_REQ_STATUS_RETRY | SCSI_REQ_STATUS_RETRY_TYPE_MASK); |
343 | 5dba48a8 | Kevin Wolf | |
344 | 5dba48a8 | Kevin Wolf | switch (status & SCSI_REQ_STATUS_RETRY_TYPE_MASK) {
|
345 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_READ:
|
346 | 5dba48a8 | Kevin Wolf | scsi_read_request(r); |
347 | 5dba48a8 | Kevin Wolf | break;
|
348 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_WRITE:
|
349 | 5dba48a8 | Kevin Wolf | scsi_write_request(r); |
350 | 5dba48a8 | Kevin Wolf | break;
|
351 | 78ced65e | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_FLUSH:
|
352 | 78ced65e | Kevin Wolf | ret = scsi_disk_emulate_command(r, r->iov.iov_base); |
353 | 78ced65e | Kevin Wolf | if (ret == 0) { |
354 | 78ced65e | Kevin Wolf | scsi_command_complete(r, GOOD, NO_SENSE); |
355 | 78ced65e | Kevin Wolf | } |
356 | 5dba48a8 | Kevin Wolf | } |
357 | ea8a5d7f | aliguori | } |
358 | ea8a5d7f | aliguori | } |
359 | ea8a5d7f | aliguori | } |
360 | ea8a5d7f | aliguori | |
361 | 213189ab | Markus Armbruster | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
362 | 213189ab | Markus Armbruster | { |
363 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
364 | 213189ab | Markus Armbruster | |
365 | 213189ab | Markus Armbruster | if (!running)
|
366 | 213189ab | Markus Armbruster | return;
|
367 | 213189ab | Markus Armbruster | |
368 | 213189ab | Markus Armbruster | if (!s->bh) {
|
369 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
370 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
371 | 213189ab | Markus Armbruster | } |
372 | 213189ab | Markus Armbruster | } |
373 | 213189ab | Markus Armbruster | |
374 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
|
375 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
|
376 | a917d384 | pbrook | { |
377 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
378 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
379 | 2e5d83bb | pbrook | |
380 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
381 | a917d384 | pbrook | if (!r) {
|
382 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
|
383 | a917d384 | pbrook | return NULL; |
384 | 4d611c9a | pbrook | } |
385 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
|
386 | 2e5d83bb | pbrook | } |
387 | 2e5d83bb | pbrook | |
388 | 0b06c059 | Gerd Hoffmann | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
389 | 0b06c059 | Gerd Hoffmann | { |
390 | 383b4d9b | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
391 | 0b06c059 | Gerd Hoffmann | int buflen = 0; |
392 | 0b06c059 | Gerd Hoffmann | |
393 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x2) { |
394 | 0b06c059 | Gerd Hoffmann | /* Command support data - optional, not implemented */
|
395 | 0b06c059 | Gerd Hoffmann | BADF("optional INQUIRY command support request not implemented\n");
|
396 | 0b06c059 | Gerd Hoffmann | return -1; |
397 | 0b06c059 | Gerd Hoffmann | } |
398 | 0b06c059 | Gerd Hoffmann | |
399 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x1) { |
400 | 0b06c059 | Gerd Hoffmann | /* Vital product data */
|
401 | 0b06c059 | Gerd Hoffmann | uint8_t page_code = req->cmd.buf[2];
|
402 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 4) { |
403 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is "
|
404 | 0b06c059 | Gerd Hoffmann | "less than 4\n", page_code, req->cmd.xfer);
|
405 | 0b06c059 | Gerd Hoffmann | return -1; |
406 | 0b06c059 | Gerd Hoffmann | } |
407 | 0b06c059 | Gerd Hoffmann | |
408 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
409 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 5;
|
410 | 0b06c059 | Gerd Hoffmann | } else {
|
411 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0;
|
412 | 0b06c059 | Gerd Hoffmann | } |
413 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = page_code ; // this page
|
414 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00;
|
415 | 0b06c059 | Gerd Hoffmann | |
416 | 0b06c059 | Gerd Hoffmann | switch (page_code) {
|
417 | 0b06c059 | Gerd Hoffmann | case 0x00: /* Supported page codes, mandatory */ |
418 | 39d98982 | Hannes Reinecke | { |
419 | 39d98982 | Hannes Reinecke | int pages;
|
420 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Supported pages] "
|
421 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
422 | 39d98982 | Hannes Reinecke | pages = buflen++; |
423 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
424 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x80; // unit serial number |
425 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x83; // device identification |
426 | 39d98982 | Hannes Reinecke | if (bdrv_get_type_hint(s->bs) != BDRV_TYPE_CDROM) {
|
427 | 39d98982 | Hannes Reinecke | outbuf[buflen++] = 0xb0; // block device characteristics |
428 | 39d98982 | Hannes Reinecke | } |
429 | 39d98982 | Hannes Reinecke | outbuf[pages] = buflen - pages - 1; // number of pages |
430 | 0b06c059 | Gerd Hoffmann | break;
|
431 | 39d98982 | Hannes Reinecke | } |
432 | 0b06c059 | Gerd Hoffmann | case 0x80: /* Device serial number, optional */ |
433 | 0b06c059 | Gerd Hoffmann | { |
434 | a0fef654 | Markus Armbruster | int l = strlen(s->serial);
|
435 | 0b06c059 | Gerd Hoffmann | |
436 | 0b06c059 | Gerd Hoffmann | if (l > req->cmd.xfer)
|
437 | 0b06c059 | Gerd Hoffmann | l = req->cmd.xfer; |
438 | 0b06c059 | Gerd Hoffmann | if (l > 20) |
439 | 0b06c059 | Gerd Hoffmann | l = 20;
|
440 | 0b06c059 | Gerd Hoffmann | |
441 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Serial number] "
|
442 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
443 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = l; |
444 | a0fef654 | Markus Armbruster | memcpy(outbuf+buflen, s->serial, l); |
445 | 0b06c059 | Gerd Hoffmann | buflen += l; |
446 | 0b06c059 | Gerd Hoffmann | break;
|
447 | 0b06c059 | Gerd Hoffmann | } |
448 | 0b06c059 | Gerd Hoffmann | |
449 | 0b06c059 | Gerd Hoffmann | case 0x83: /* Device identification page, mandatory */ |
450 | 0b06c059 | Gerd Hoffmann | { |
451 | 0b06c059 | Gerd Hoffmann | int max_len = 255 - 8; |
452 | 428c149b | Christoph Hellwig | int id_len = strlen(bdrv_get_device_name(s->bs));
|
453 | 0b06c059 | Gerd Hoffmann | |
454 | 0b06c059 | Gerd Hoffmann | if (id_len > max_len)
|
455 | 0b06c059 | Gerd Hoffmann | id_len = max_len; |
456 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Device identification] "
|
457 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
458 | 0b06c059 | Gerd Hoffmann | |
459 | 39d98982 | Hannes Reinecke | outbuf[buflen++] = 4 + id_len;
|
460 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x2; // ASCII |
461 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // not officially assigned |
462 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // reserved |
463 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = id_len; // length of data following
|
464 | 0b06c059 | Gerd Hoffmann | |
465 | 428c149b | Christoph Hellwig | memcpy(outbuf+buflen, bdrv_get_device_name(s->bs), id_len); |
466 | 0b06c059 | Gerd Hoffmann | buflen += id_len; |
467 | 0b06c059 | Gerd Hoffmann | break;
|
468 | 0b06c059 | Gerd Hoffmann | } |
469 | ee3659e3 | Christoph Hellwig | case 0xb0: /* block device characteristics */ |
470 | ee3659e3 | Christoph Hellwig | { |
471 | 8cfacf07 | Christoph Hellwig | unsigned int min_io_size = |
472 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.min_io_size / s->qdev.blocksize; |
473 | 8cfacf07 | Christoph Hellwig | unsigned int opt_io_size = |
474 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.opt_io_size / s->qdev.blocksize; |
475 | ee3659e3 | Christoph Hellwig | |
476 | 39d98982 | Hannes Reinecke | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
477 | 39d98982 | Hannes Reinecke | DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n",
|
478 | 39d98982 | Hannes Reinecke | page_code); |
479 | 39d98982 | Hannes Reinecke | return -1; |
480 | 39d98982 | Hannes Reinecke | } |
481 | ee3659e3 | Christoph Hellwig | /* required VPD size with unmap support */
|
482 | ee3659e3 | Christoph Hellwig | outbuf[3] = buflen = 0x3c; |
483 | ee3659e3 | Christoph Hellwig | |
484 | ee3659e3 | Christoph Hellwig | memset(outbuf + 4, 0, buflen - 4); |
485 | ee3659e3 | Christoph Hellwig | |
486 | ee3659e3 | Christoph Hellwig | /* optimal transfer length granularity */
|
487 | ee3659e3 | Christoph Hellwig | outbuf[6] = (min_io_size >> 8) & 0xff; |
488 | ee3659e3 | Christoph Hellwig | outbuf[7] = min_io_size & 0xff; |
489 | ee3659e3 | Christoph Hellwig | |
490 | ee3659e3 | Christoph Hellwig | /* optimal transfer length */
|
491 | ee3659e3 | Christoph Hellwig | outbuf[12] = (opt_io_size >> 24) & 0xff; |
492 | ee3659e3 | Christoph Hellwig | outbuf[13] = (opt_io_size >> 16) & 0xff; |
493 | ee3659e3 | Christoph Hellwig | outbuf[14] = (opt_io_size >> 8) & 0xff; |
494 | ee3659e3 | Christoph Hellwig | outbuf[15] = opt_io_size & 0xff; |
495 | ee3659e3 | Christoph Hellwig | break;
|
496 | ee3659e3 | Christoph Hellwig | } |
497 | 0b06c059 | Gerd Hoffmann | default:
|
498 | 0b06c059 | Gerd Hoffmann | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
499 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", page_code, req->cmd.xfer);
|
500 | 0b06c059 | Gerd Hoffmann | return -1; |
501 | 0b06c059 | Gerd Hoffmann | } |
502 | 0b06c059 | Gerd Hoffmann | /* done with EVPD */
|
503 | 0b06c059 | Gerd Hoffmann | return buflen;
|
504 | 0b06c059 | Gerd Hoffmann | } |
505 | 0b06c059 | Gerd Hoffmann | |
506 | 0b06c059 | Gerd Hoffmann | /* Standard INQUIRY data */
|
507 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[2] != 0) { |
508 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) page or code "
|
509 | 0b06c059 | Gerd Hoffmann | "is non-zero [%02X]\n", req->cmd.buf[2]); |
510 | 0b06c059 | Gerd Hoffmann | return -1; |
511 | 0b06c059 | Gerd Hoffmann | } |
512 | 0b06c059 | Gerd Hoffmann | |
513 | 0b06c059 | Gerd Hoffmann | /* PAGE CODE == 0 */
|
514 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 5) { |
515 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) buffer size %zd "
|
516 | 0b06c059 | Gerd Hoffmann | "is less than 5\n", req->cmd.xfer);
|
517 | 0b06c059 | Gerd Hoffmann | return -1; |
518 | 0b06c059 | Gerd Hoffmann | } |
519 | 0b06c059 | Gerd Hoffmann | |
520 | 0b06c059 | Gerd Hoffmann | buflen = req->cmd.xfer; |
521 | 0b06c059 | Gerd Hoffmann | if (buflen > SCSI_MAX_INQUIRY_LEN)
|
522 | 0b06c059 | Gerd Hoffmann | buflen = SCSI_MAX_INQUIRY_LEN; |
523 | 0b06c059 | Gerd Hoffmann | |
524 | 0b06c059 | Gerd Hoffmann | memset(outbuf, 0, buflen);
|
525 | 0b06c059 | Gerd Hoffmann | |
526 | 0b06c059 | Gerd Hoffmann | if (req->lun || req->cmd.buf[1] >> 5) { |
527 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0x7f; /* LUN not supported */ |
528 | 0b06c059 | Gerd Hoffmann | return buflen;
|
529 | 0b06c059 | Gerd Hoffmann | } |
530 | 0b06c059 | Gerd Hoffmann | |
531 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
532 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 5; |
533 | 0b06c059 | Gerd Hoffmann | outbuf[1] = 0x80; |
534 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
535 | 0b06c059 | Gerd Hoffmann | } else {
|
536 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0; |
537 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
538 | 0b06c059 | Gerd Hoffmann | } |
539 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[8], "QEMU ", 8); |
540 | 314b1811 | Gerd Hoffmann | memset(&outbuf[32], 0, 4); |
541 | 552fee93 | Markus Armbruster | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
542 | 99aba0c4 | Christoph Hellwig | /*
|
543 | 99aba0c4 | Christoph Hellwig | * We claim conformance to SPC-3, which is required for guests
|
544 | 99aba0c4 | Christoph Hellwig | * to ask for modern features like READ CAPACITY(16) or the
|
545 | 99aba0c4 | Christoph Hellwig | * block characteristics VPD page by default. Not all of SPC-3
|
546 | 99aba0c4 | Christoph Hellwig | * is actually implemented, but we're good enough.
|
547 | 99aba0c4 | Christoph Hellwig | */
|
548 | ee3659e3 | Christoph Hellwig | outbuf[2] = 5; |
549 | 0b06c059 | Gerd Hoffmann | outbuf[3] = 2; /* Format 2 */ |
550 | ad3cea42 | Artyom Tarasenko | |
551 | ad3cea42 | Artyom Tarasenko | if (buflen > 36) { |
552 | ad3cea42 | Artyom Tarasenko | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
553 | ad3cea42 | Artyom Tarasenko | } else {
|
554 | ad3cea42 | Artyom Tarasenko | /* If the allocation length of CDB is too small,
|
555 | ad3cea42 | Artyom Tarasenko | the additional length is not adjusted */
|
556 | ad3cea42 | Artyom Tarasenko | outbuf[4] = 36 - 5; |
557 | ad3cea42 | Artyom Tarasenko | } |
558 | ad3cea42 | Artyom Tarasenko | |
559 | 0b06c059 | Gerd Hoffmann | /* Sync data transfer and TCQ. */
|
560 | 0b06c059 | Gerd Hoffmann | outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0); |
561 | 0b06c059 | Gerd Hoffmann | return buflen;
|
562 | 0b06c059 | Gerd Hoffmann | } |
563 | 0b06c059 | Gerd Hoffmann | |
564 | 282ab04e | Bernhard Kohl | static int mode_sense_page(SCSIRequest *req, int page, uint8_t *p, |
565 | 282ab04e | Bernhard Kohl | int page_control)
|
566 | ebddfcbe | Gerd Hoffmann | { |
567 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
568 | 428c149b | Christoph Hellwig | BlockDriverState *bdrv = s->bs; |
569 | ebddfcbe | Gerd Hoffmann | int cylinders, heads, secs;
|
570 | ebddfcbe | Gerd Hoffmann | |
571 | 282ab04e | Bernhard Kohl | /*
|
572 | 282ab04e | Bernhard Kohl | * If Changeable Values are requested, a mask denoting those mode parameters
|
573 | 282ab04e | Bernhard Kohl | * that are changeable shall be returned. As we currently don't support
|
574 | 282ab04e | Bernhard Kohl | * parameter changes via MODE_SELECT all bits are returned set to zero.
|
575 | 282ab04e | Bernhard Kohl | * The buffer was already menset to zero by the caller of this function.
|
576 | 282ab04e | Bernhard Kohl | */
|
577 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
578 | ebddfcbe | Gerd Hoffmann | case 4: /* Rigid disk device geometry page. */ |
579 | ebddfcbe | Gerd Hoffmann | p[0] = 4; |
580 | ebddfcbe | Gerd Hoffmann | p[1] = 0x16; |
581 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
582 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
583 | 282ab04e | Bernhard Kohl | } |
584 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
585 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
586 | ebddfcbe | Gerd Hoffmann | p[2] = (cylinders >> 16) & 0xff; |
587 | ebddfcbe | Gerd Hoffmann | p[3] = (cylinders >> 8) & 0xff; |
588 | ebddfcbe | Gerd Hoffmann | p[4] = cylinders & 0xff; |
589 | ebddfcbe | Gerd Hoffmann | p[5] = heads & 0xff; |
590 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
591 | ebddfcbe | Gerd Hoffmann | p[6] = (cylinders >> 16) & 0xff; |
592 | ebddfcbe | Gerd Hoffmann | p[7] = (cylinders >> 8) & 0xff; |
593 | ebddfcbe | Gerd Hoffmann | p[8] = cylinders & 0xff; |
594 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
595 | ebddfcbe | Gerd Hoffmann | p[9] = (cylinders >> 16) & 0xff; |
596 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
597 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
598 | ebddfcbe | Gerd Hoffmann | /* Device step rate [ns], 200ns */
|
599 | ebddfcbe | Gerd Hoffmann | p[12] = 0; |
600 | ebddfcbe | Gerd Hoffmann | p[13] = 200; |
601 | ebddfcbe | Gerd Hoffmann | /* Landing zone cylinder */
|
602 | ebddfcbe | Gerd Hoffmann | p[14] = 0xff; |
603 | ebddfcbe | Gerd Hoffmann | p[15] = 0xff; |
604 | ebddfcbe | Gerd Hoffmann | p[16] = 0xff; |
605 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
606 | ebddfcbe | Gerd Hoffmann | p[20] = (5400 >> 8) & 0xff; |
607 | ebddfcbe | Gerd Hoffmann | p[21] = 5400 & 0xff; |
608 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
609 | ebddfcbe | Gerd Hoffmann | |
610 | ebddfcbe | Gerd Hoffmann | case 5: /* Flexible disk device geometry page. */ |
611 | ebddfcbe | Gerd Hoffmann | p[0] = 5; |
612 | ebddfcbe | Gerd Hoffmann | p[1] = 0x1e; |
613 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
614 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
615 | 282ab04e | Bernhard Kohl | } |
616 | ebddfcbe | Gerd Hoffmann | /* Transfer rate [kbit/s], 5Mbit/s */
|
617 | ebddfcbe | Gerd Hoffmann | p[2] = 5000 >> 8; |
618 | ebddfcbe | Gerd Hoffmann | p[3] = 5000 & 0xff; |
619 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
620 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
621 | ebddfcbe | Gerd Hoffmann | p[4] = heads & 0xff; |
622 | ebddfcbe | Gerd Hoffmann | p[5] = secs & 0xff; |
623 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
624 | ebddfcbe | Gerd Hoffmann | p[8] = (cylinders >> 8) & 0xff; |
625 | ebddfcbe | Gerd Hoffmann | p[9] = cylinders & 0xff; |
626 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
627 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
628 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
629 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
630 | ebddfcbe | Gerd Hoffmann | p[12] = (cylinders >> 8) & 0xff; |
631 | ebddfcbe | Gerd Hoffmann | p[13] = cylinders & 0xff; |
632 | ebddfcbe | Gerd Hoffmann | /* Device step rate [100us], 100us */
|
633 | ebddfcbe | Gerd Hoffmann | p[14] = 0; |
634 | ebddfcbe | Gerd Hoffmann | p[15] = 1; |
635 | ebddfcbe | Gerd Hoffmann | /* Device step pulse width [us], 1us */
|
636 | ebddfcbe | Gerd Hoffmann | p[16] = 1; |
637 | ebddfcbe | Gerd Hoffmann | /* Device head settle delay [100us], 100us */
|
638 | ebddfcbe | Gerd Hoffmann | p[17] = 0; |
639 | ebddfcbe | Gerd Hoffmann | p[18] = 1; |
640 | ebddfcbe | Gerd Hoffmann | /* Motor on delay [0.1s], 0.1s */
|
641 | ebddfcbe | Gerd Hoffmann | p[19] = 1; |
642 | ebddfcbe | Gerd Hoffmann | /* Motor off delay [0.1s], 0.1s */
|
643 | ebddfcbe | Gerd Hoffmann | p[20] = 1; |
644 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
645 | ebddfcbe | Gerd Hoffmann | p[28] = (5400 >> 8) & 0xff; |
646 | ebddfcbe | Gerd Hoffmann | p[29] = 5400 & 0xff; |
647 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
648 | ebddfcbe | Gerd Hoffmann | |
649 | ebddfcbe | Gerd Hoffmann | case 8: /* Caching page. */ |
650 | ebddfcbe | Gerd Hoffmann | p[0] = 8; |
651 | ebddfcbe | Gerd Hoffmann | p[1] = 0x12; |
652 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
653 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
654 | 282ab04e | Bernhard Kohl | } |
655 | 428c149b | Christoph Hellwig | if (bdrv_enable_write_cache(s->bs)) {
|
656 | ebddfcbe | Gerd Hoffmann | p[2] = 4; /* WCE */ |
657 | ebddfcbe | Gerd Hoffmann | } |
658 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
659 | ebddfcbe | Gerd Hoffmann | |
660 | ebddfcbe | Gerd Hoffmann | case 0x2a: /* CD Capabilities and Mechanical Status page. */ |
661 | ebddfcbe | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) != BDRV_TYPE_CDROM)
|
662 | ebddfcbe | Gerd Hoffmann | return 0; |
663 | ebddfcbe | Gerd Hoffmann | p[0] = 0x2a; |
664 | ebddfcbe | Gerd Hoffmann | p[1] = 0x14; |
665 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
666 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
667 | 282ab04e | Bernhard Kohl | } |
668 | ebddfcbe | Gerd Hoffmann | p[2] = 3; // CD-R & CD-RW read |
669 | ebddfcbe | Gerd Hoffmann | p[3] = 0; // Writing not supported |
670 | ebddfcbe | Gerd Hoffmann | p[4] = 0x7f; /* Audio, composite, digital out, |
671 | ebddfcbe | Gerd Hoffmann | mode 2 form 1&2, multi session */
|
672 | ebddfcbe | Gerd Hoffmann | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
673 | ebddfcbe | Gerd Hoffmann | RW corrected, C2 errors, ISRC,
|
674 | ebddfcbe | Gerd Hoffmann | UPC, Bar code */
|
675 | 428c149b | Christoph Hellwig | p[6] = 0x2d | (bdrv_is_locked(s->bs)? 2 : 0); |
676 | ebddfcbe | Gerd Hoffmann | /* Locking supported, jumper present, eject, tray */
|
677 | ebddfcbe | Gerd Hoffmann | p[7] = 0; /* no volume & mute control, no |
678 | ebddfcbe | Gerd Hoffmann | changer */
|
679 | ebddfcbe | Gerd Hoffmann | p[8] = (50 * 176) >> 8; // 50x read speed |
680 | ebddfcbe | Gerd Hoffmann | p[9] = (50 * 176) & 0xff; |
681 | ebddfcbe | Gerd Hoffmann | p[10] = 0 >> 8; // No volume |
682 | ebddfcbe | Gerd Hoffmann | p[11] = 0 & 0xff; |
683 | ebddfcbe | Gerd Hoffmann | p[12] = 2048 >> 8; // 2M buffer |
684 | ebddfcbe | Gerd Hoffmann | p[13] = 2048 & 0xff; |
685 | ebddfcbe | Gerd Hoffmann | p[14] = (16 * 176) >> 8; // 16x read speed current |
686 | ebddfcbe | Gerd Hoffmann | p[15] = (16 * 176) & 0xff; |
687 | ebddfcbe | Gerd Hoffmann | p[18] = (16 * 176) >> 8; // 16x write speed |
688 | ebddfcbe | Gerd Hoffmann | p[19] = (16 * 176) & 0xff; |
689 | ebddfcbe | Gerd Hoffmann | p[20] = (16 * 176) >> 8; // 16x write speed current |
690 | ebddfcbe | Gerd Hoffmann | p[21] = (16 * 176) & 0xff; |
691 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
692 | ebddfcbe | Gerd Hoffmann | |
693 | ebddfcbe | Gerd Hoffmann | default:
|
694 | ebddfcbe | Gerd Hoffmann | return 0; |
695 | ebddfcbe | Gerd Hoffmann | } |
696 | ebddfcbe | Gerd Hoffmann | } |
697 | ebddfcbe | Gerd Hoffmann | |
698 | ebddfcbe | Gerd Hoffmann | static int scsi_disk_emulate_mode_sense(SCSIRequest *req, uint8_t *outbuf) |
699 | ebddfcbe | Gerd Hoffmann | { |
700 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
701 | ebddfcbe | Gerd Hoffmann | uint64_t nb_sectors; |
702 | 282ab04e | Bernhard Kohl | int page, dbd, buflen, page_control;
|
703 | ebddfcbe | Gerd Hoffmann | uint8_t *p; |
704 | ce512ee1 | Bernhard Kohl | uint8_t dev_specific_param; |
705 | ebddfcbe | Gerd Hoffmann | |
706 | ebddfcbe | Gerd Hoffmann | dbd = req->cmd.buf[1] & 0x8; |
707 | ebddfcbe | Gerd Hoffmann | page = req->cmd.buf[2] & 0x3f; |
708 | 282ab04e | Bernhard Kohl | page_control = (req->cmd.buf[2] & 0xc0) >> 6; |
709 | aa2b1e89 | Bernhard Kohl | DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n",
|
710 | aa2b1e89 | Bernhard Kohl | (req->cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, req->cmd.xfer, page_control); |
711 | ebddfcbe | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
712 | ebddfcbe | Gerd Hoffmann | p = outbuf; |
713 | ebddfcbe | Gerd Hoffmann | |
714 | 0056dcc1 | Naphtali Sprei | if (bdrv_is_read_only(s->bs)) {
|
715 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x80; /* Readonly. */ |
716 | ce512ee1 | Bernhard Kohl | } else {
|
717 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x00;
|
718 | ce512ee1 | Bernhard Kohl | } |
719 | ce512ee1 | Bernhard Kohl | |
720 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
721 | ce512ee1 | Bernhard Kohl | p[1] = 0; /* Default media type. */ |
722 | ce512ee1 | Bernhard Kohl | p[2] = dev_specific_param;
|
723 | ce512ee1 | Bernhard Kohl | p[3] = 0; /* Block descriptor length. */ |
724 | ce512ee1 | Bernhard Kohl | p += 4;
|
725 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
726 | ce512ee1 | Bernhard Kohl | p[2] = 0; /* Default media type. */ |
727 | ce512ee1 | Bernhard Kohl | p[3] = dev_specific_param;
|
728 | ce512ee1 | Bernhard Kohl | p[6] = p[7] = 0; /* Block descriptor length. */ |
729 | ce512ee1 | Bernhard Kohl | p += 8;
|
730 | ebddfcbe | Gerd Hoffmann | } |
731 | ebddfcbe | Gerd Hoffmann | |
732 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
733 | 333d50fe | Bernhard Kohl | if (!dbd && nb_sectors) {
|
734 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
735 | ce512ee1 | Bernhard Kohl | outbuf[3] = 8; /* Block descriptor length */ |
736 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
737 | ce512ee1 | Bernhard Kohl | outbuf[7] = 8; /* Block descriptor length */ |
738 | ce512ee1 | Bernhard Kohl | } |
739 | ebddfcbe | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
740 | ebddfcbe | Gerd Hoffmann | if (nb_sectors > 0xffffff) |
741 | 2488b740 | Bernhard Kohl | nb_sectors = 0;
|
742 | ebddfcbe | Gerd Hoffmann | p[0] = 0; /* media density code */ |
743 | ebddfcbe | Gerd Hoffmann | p[1] = (nb_sectors >> 16) & 0xff; |
744 | ebddfcbe | Gerd Hoffmann | p[2] = (nb_sectors >> 8) & 0xff; |
745 | ebddfcbe | Gerd Hoffmann | p[3] = nb_sectors & 0xff; |
746 | ebddfcbe | Gerd Hoffmann | p[4] = 0; /* reserved */ |
747 | ebddfcbe | Gerd Hoffmann | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
748 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
749 | ebddfcbe | Gerd Hoffmann | p[7] = 0; |
750 | ebddfcbe | Gerd Hoffmann | p += 8;
|
751 | ebddfcbe | Gerd Hoffmann | } |
752 | ebddfcbe | Gerd Hoffmann | |
753 | 282ab04e | Bernhard Kohl | if (page_control == 3) { /* Saved Values */ |
754 | 282ab04e | Bernhard Kohl | return -1; /* ILLEGAL_REQUEST */ |
755 | 282ab04e | Bernhard Kohl | } |
756 | 282ab04e | Bernhard Kohl | |
757 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
758 | ebddfcbe | Gerd Hoffmann | case 0x04: |
759 | ebddfcbe | Gerd Hoffmann | case 0x05: |
760 | ebddfcbe | Gerd Hoffmann | case 0x08: |
761 | ebddfcbe | Gerd Hoffmann | case 0x2a: |
762 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, page, p, page_control); |
763 | ebddfcbe | Gerd Hoffmann | break;
|
764 | ebddfcbe | Gerd Hoffmann | case 0x3f: |
765 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, 0x08, p, page_control);
|
766 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, 0x2a, p, page_control);
|
767 | ebddfcbe | Gerd Hoffmann | break;
|
768 | a9c17b2b | Bernhard Kohl | default:
|
769 | a9c17b2b | Bernhard Kohl | return -1; /* ILLEGAL_REQUEST */ |
770 | ebddfcbe | Gerd Hoffmann | } |
771 | ebddfcbe | Gerd Hoffmann | |
772 | ebddfcbe | Gerd Hoffmann | buflen = p - outbuf; |
773 | ce512ee1 | Bernhard Kohl | /*
|
774 | ce512ee1 | Bernhard Kohl | * The mode data length field specifies the length in bytes of the
|
775 | ce512ee1 | Bernhard Kohl | * following data that is available to be transferred. The mode data
|
776 | ce512ee1 | Bernhard Kohl | * length does not include itself.
|
777 | ce512ee1 | Bernhard Kohl | */
|
778 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
779 | ce512ee1 | Bernhard Kohl | outbuf[0] = buflen - 1; |
780 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
781 | ce512ee1 | Bernhard Kohl | outbuf[0] = ((buflen - 2) >> 8) & 0xff; |
782 | ce512ee1 | Bernhard Kohl | outbuf[1] = (buflen - 2) & 0xff; |
783 | ce512ee1 | Bernhard Kohl | } |
784 | ebddfcbe | Gerd Hoffmann | if (buflen > req->cmd.xfer)
|
785 | ebddfcbe | Gerd Hoffmann | buflen = req->cmd.xfer; |
786 | ebddfcbe | Gerd Hoffmann | return buflen;
|
787 | ebddfcbe | Gerd Hoffmann | } |
788 | ebddfcbe | Gerd Hoffmann | |
789 | 02880f43 | Gerd Hoffmann | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
790 | 02880f43 | Gerd Hoffmann | { |
791 | 02880f43 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
792 | 02880f43 | Gerd Hoffmann | int start_track, format, msf, toclen;
|
793 | 02880f43 | Gerd Hoffmann | uint64_t nb_sectors; |
794 | 02880f43 | Gerd Hoffmann | |
795 | 02880f43 | Gerd Hoffmann | msf = req->cmd.buf[1] & 2; |
796 | 02880f43 | Gerd Hoffmann | format = req->cmd.buf[2] & 0xf; |
797 | 02880f43 | Gerd Hoffmann | start_track = req->cmd.buf[6];
|
798 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
799 | 02880f43 | Gerd Hoffmann | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
800 | 02880f43 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
801 | 02880f43 | Gerd Hoffmann | switch (format) {
|
802 | 02880f43 | Gerd Hoffmann | case 0: |
803 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
804 | 02880f43 | Gerd Hoffmann | break;
|
805 | 02880f43 | Gerd Hoffmann | case 1: |
806 | 02880f43 | Gerd Hoffmann | /* multi session : only a single session defined */
|
807 | 02880f43 | Gerd Hoffmann | toclen = 12;
|
808 | 02880f43 | Gerd Hoffmann | memset(outbuf, 0, 12); |
809 | 02880f43 | Gerd Hoffmann | outbuf[1] = 0x0a; |
810 | 02880f43 | Gerd Hoffmann | outbuf[2] = 0x01; |
811 | 02880f43 | Gerd Hoffmann | outbuf[3] = 0x01; |
812 | 02880f43 | Gerd Hoffmann | break;
|
813 | 02880f43 | Gerd Hoffmann | case 2: |
814 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
815 | 02880f43 | Gerd Hoffmann | break;
|
816 | 02880f43 | Gerd Hoffmann | default:
|
817 | 02880f43 | Gerd Hoffmann | return -1; |
818 | 02880f43 | Gerd Hoffmann | } |
819 | 02880f43 | Gerd Hoffmann | if (toclen > req->cmd.xfer)
|
820 | 02880f43 | Gerd Hoffmann | toclen = req->cmd.xfer; |
821 | 02880f43 | Gerd Hoffmann | return toclen;
|
822 | 02880f43 | Gerd Hoffmann | } |
823 | 02880f43 | Gerd Hoffmann | |
824 | 8af7a3ab | Kevin Wolf | static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf) |
825 | aa5dbdc1 | Gerd Hoffmann | { |
826 | 8af7a3ab | Kevin Wolf | SCSIRequest *req = &r->req; |
827 | e7e25e32 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
828 | e7e25e32 | Gerd Hoffmann | uint64_t nb_sectors; |
829 | aa5dbdc1 | Gerd Hoffmann | int buflen = 0; |
830 | 78ced65e | Kevin Wolf | int ret;
|
831 | aa5dbdc1 | Gerd Hoffmann | |
832 | aa5dbdc1 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
833 | aa5dbdc1 | Gerd Hoffmann | case TEST_UNIT_READY:
|
834 | 428c149b | Christoph Hellwig | if (!bdrv_is_inserted(s->bs))
|
835 | aa5dbdc1 | Gerd Hoffmann | goto not_ready;
|
836 | aa5dbdc1 | Gerd Hoffmann | break;
|
837 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
838 | 51ad87c9 | Gerd Hoffmann | if (req->cmd.xfer < 4) |
839 | 51ad87c9 | Gerd Hoffmann | goto illegal_request;
|
840 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 4); |
841 | 51ad87c9 | Gerd Hoffmann | buflen = 4;
|
842 | a6d96eb7 | Hannes Reinecke | if (s->sense.key == NOT_READY && req->cmd.xfer >= 18) { |
843 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 18); |
844 | 51ad87c9 | Gerd Hoffmann | buflen = 18;
|
845 | 51ad87c9 | Gerd Hoffmann | outbuf[7] = 10; |
846 | 51ad87c9 | Gerd Hoffmann | /* asc 0x3a, ascq 0: Medium not present */
|
847 | 51ad87c9 | Gerd Hoffmann | outbuf[12] = 0x3a; |
848 | 51ad87c9 | Gerd Hoffmann | outbuf[13] = 0; |
849 | 51ad87c9 | Gerd Hoffmann | } |
850 | 51ad87c9 | Gerd Hoffmann | outbuf[0] = 0xf0; |
851 | 51ad87c9 | Gerd Hoffmann | outbuf[1] = 0; |
852 | a6d96eb7 | Hannes Reinecke | outbuf[2] = s->sense.key;
|
853 | a6d96eb7 | Hannes Reinecke | scsi_disk_clear_sense(s); |
854 | 51ad87c9 | Gerd Hoffmann | break;
|
855 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
856 | 0b06c059 | Gerd Hoffmann | buflen = scsi_disk_emulate_inquiry(req, outbuf); |
857 | 0b06c059 | Gerd Hoffmann | if (buflen < 0) |
858 | 0b06c059 | Gerd Hoffmann | goto illegal_request;
|
859 | 0b06c059 | Gerd Hoffmann | break;
|
860 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
861 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
862 | ebddfcbe | Gerd Hoffmann | buflen = scsi_disk_emulate_mode_sense(req, outbuf); |
863 | ebddfcbe | Gerd Hoffmann | if (buflen < 0) |
864 | ebddfcbe | Gerd Hoffmann | goto illegal_request;
|
865 | ebddfcbe | Gerd Hoffmann | break;
|
866 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
867 | 02880f43 | Gerd Hoffmann | buflen = scsi_disk_emulate_read_toc(req, outbuf); |
868 | 02880f43 | Gerd Hoffmann | if (buflen < 0) |
869 | 02880f43 | Gerd Hoffmann | goto illegal_request;
|
870 | 02880f43 | Gerd Hoffmann | break;
|
871 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
872 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
873 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
874 | 3d53ba18 | Gerd Hoffmann | break;
|
875 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
876 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
877 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
878 | 3d53ba18 | Gerd Hoffmann | break;
|
879 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
880 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
881 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
882 | 3d53ba18 | Gerd Hoffmann | break;
|
883 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
884 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
885 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
886 | 3d53ba18 | Gerd Hoffmann | break;
|
887 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
888 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM && (req->cmd.buf[4] & 2)) { |
889 | 8d3628ff | Gerd Hoffmann | /* load/eject medium */
|
890 | 428c149b | Christoph Hellwig | bdrv_eject(s->bs, !(req->cmd.buf[4] & 1)); |
891 | 8d3628ff | Gerd Hoffmann | } |
892 | 8d3628ff | Gerd Hoffmann | break;
|
893 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
894 | 428c149b | Christoph Hellwig | bdrv_set_locked(s->bs, req->cmd.buf[4] & 1); |
895 | c68b9f34 | Gerd Hoffmann | break;
|
896 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
897 | e7e25e32 | Gerd Hoffmann | /* The normal LEN field for this command is zero. */
|
898 | e7e25e32 | Gerd Hoffmann | memset(outbuf, 0, 8); |
899 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
900 | e7e25e32 | Gerd Hoffmann | if (!nb_sectors)
|
901 | e7e25e32 | Gerd Hoffmann | goto not_ready;
|
902 | e7e25e32 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
903 | e7e25e32 | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
904 | e7e25e32 | Gerd Hoffmann | nb_sectors--; |
905 | e7e25e32 | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
906 | e7e25e32 | Gerd Hoffmann | s->max_lba = nb_sectors; |
907 | e7e25e32 | Gerd Hoffmann | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
908 | e7e25e32 | Gerd Hoffmann | if (nb_sectors > UINT32_MAX)
|
909 | e7e25e32 | Gerd Hoffmann | nb_sectors = UINT32_MAX; |
910 | e7e25e32 | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 24) & 0xff; |
911 | e7e25e32 | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 16) & 0xff; |
912 | e7e25e32 | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 8) & 0xff; |
913 | e7e25e32 | Gerd Hoffmann | outbuf[3] = nb_sectors & 0xff; |
914 | e7e25e32 | Gerd Hoffmann | outbuf[4] = 0; |
915 | e7e25e32 | Gerd Hoffmann | outbuf[5] = 0; |
916 | e7e25e32 | Gerd Hoffmann | outbuf[6] = s->cluster_size * 2; |
917 | e7e25e32 | Gerd Hoffmann | outbuf[7] = 0; |
918 | e7e25e32 | Gerd Hoffmann | buflen = 8;
|
919 | e7e25e32 | Gerd Hoffmann | break;
|
920 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
921 | 78ced65e | Kevin Wolf | ret = bdrv_flush(s->bs); |
922 | 78ced65e | Kevin Wolf | if (ret < 0) { |
923 | 78ced65e | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_FLUSH)) {
|
924 | 78ced65e | Kevin Wolf | return -1; |
925 | 78ced65e | Kevin Wolf | } |
926 | 78ced65e | Kevin Wolf | } |
927 | fc903943 | Gerd Hoffmann | break;
|
928 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
929 | 38215553 | Gerd Hoffmann | memset(outbuf, 0, 8); |
930 | 38215553 | Gerd Hoffmann | /* ??? This should probably return much more information. For now
|
931 | 38215553 | Gerd Hoffmann | just return the basic header indicating the CD-ROM profile. */
|
932 | 38215553 | Gerd Hoffmann | outbuf[7] = 8; // CD-ROM |
933 | 38215553 | Gerd Hoffmann | buflen = 8;
|
934 | 38215553 | Gerd Hoffmann | break;
|
935 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
936 | 5dd90e2a | Gerd Hoffmann | /* Service Action In subcommands. */
|
937 | 5dd90e2a | Gerd Hoffmann | if ((req->cmd.buf[1] & 31) == 0x10) { |
938 | 5dd90e2a | Gerd Hoffmann | DPRINTF("SAI READ CAPACITY(16)\n");
|
939 | 5dd90e2a | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
940 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
941 | 5dd90e2a | Gerd Hoffmann | if (!nb_sectors)
|
942 | 5dd90e2a | Gerd Hoffmann | goto not_ready;
|
943 | 5dd90e2a | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
944 | 5dd90e2a | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
945 | 5dd90e2a | Gerd Hoffmann | nb_sectors--; |
946 | 5dd90e2a | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
947 | 5dd90e2a | Gerd Hoffmann | s->max_lba = nb_sectors; |
948 | 5dd90e2a | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 56) & 0xff; |
949 | 5dd90e2a | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 48) & 0xff; |
950 | 5dd90e2a | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 40) & 0xff; |
951 | 5dd90e2a | Gerd Hoffmann | outbuf[3] = (nb_sectors >> 32) & 0xff; |
952 | 5dd90e2a | Gerd Hoffmann | outbuf[4] = (nb_sectors >> 24) & 0xff; |
953 | 5dd90e2a | Gerd Hoffmann | outbuf[5] = (nb_sectors >> 16) & 0xff; |
954 | 5dd90e2a | Gerd Hoffmann | outbuf[6] = (nb_sectors >> 8) & 0xff; |
955 | 5dd90e2a | Gerd Hoffmann | outbuf[7] = nb_sectors & 0xff; |
956 | 5dd90e2a | Gerd Hoffmann | outbuf[8] = 0; |
957 | 5dd90e2a | Gerd Hoffmann | outbuf[9] = 0; |
958 | 5dd90e2a | Gerd Hoffmann | outbuf[10] = s->cluster_size * 2; |
959 | 5dd90e2a | Gerd Hoffmann | outbuf[11] = 0; |
960 | ee3659e3 | Christoph Hellwig | outbuf[12] = 0; |
961 | ee3659e3 | Christoph Hellwig | outbuf[13] = get_physical_block_exp(&s->qdev.conf);
|
962 | 5dd90e2a | Gerd Hoffmann | /* Protection, exponent and lowest lba field left blank. */
|
963 | 5dd90e2a | Gerd Hoffmann | buflen = req->cmd.xfer; |
964 | 5dd90e2a | Gerd Hoffmann | break;
|
965 | 5dd90e2a | Gerd Hoffmann | } |
966 | 5dd90e2a | Gerd Hoffmann | DPRINTF("Unsupported Service Action In\n");
|
967 | 5dd90e2a | Gerd Hoffmann | goto illegal_request;
|
968 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
969 | 39ec9a50 | Gerd Hoffmann | if (req->cmd.xfer < 16) |
970 | 39ec9a50 | Gerd Hoffmann | goto illegal_request;
|
971 | 39ec9a50 | Gerd Hoffmann | memset(outbuf, 0, 16); |
972 | 39ec9a50 | Gerd Hoffmann | outbuf[3] = 8; |
973 | 39ec9a50 | Gerd Hoffmann | buflen = 16;
|
974 | 39ec9a50 | Gerd Hoffmann | break;
|
975 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
976 | 88f8a5ed | Gerd Hoffmann | break;
|
977 | ebef0bbb | Bernhard Kohl | case REZERO_UNIT:
|
978 | ebef0bbb | Bernhard Kohl | DPRINTF("Rezero Unit\n");
|
979 | ebef0bbb | Bernhard Kohl | if (!bdrv_is_inserted(s->bs)) {
|
980 | ebef0bbb | Bernhard Kohl | goto not_ready;
|
981 | ebef0bbb | Bernhard Kohl | } |
982 | ebef0bbb | Bernhard Kohl | break;
|
983 | aa5dbdc1 | Gerd Hoffmann | default:
|
984 | aa5dbdc1 | Gerd Hoffmann | goto illegal_request;
|
985 | aa5dbdc1 | Gerd Hoffmann | } |
986 | a6d96eb7 | Hannes Reinecke | scsi_req_set_status(r, GOOD, NO_SENSE); |
987 | aa5dbdc1 | Gerd Hoffmann | return buflen;
|
988 | aa5dbdc1 | Gerd Hoffmann | |
989 | aa5dbdc1 | Gerd Hoffmann | not_ready:
|
990 | 8af7a3ab | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, NOT_READY); |
991 | 8af7a3ab | Kevin Wolf | return -1; |
992 | aa5dbdc1 | Gerd Hoffmann | |
993 | aa5dbdc1 | Gerd Hoffmann | illegal_request:
|
994 | 8af7a3ab | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
995 | 8af7a3ab | Kevin Wolf | return -1; |
996 | aa5dbdc1 | Gerd Hoffmann | } |
997 | aa5dbdc1 | Gerd Hoffmann | |
998 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
999 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
1000 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
1001 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
1002 | 2e5d83bb | pbrook | |
1003 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
1004 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
1005 | 2e5d83bb | pbrook | { |
1006 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
1007 | 2e5d83bb | pbrook | uint32_t len; |
1008 | 2e5d83bb | pbrook | int is_write;
|
1009 | a917d384 | pbrook | uint8_t command; |
1010 | a917d384 | pbrook | uint8_t *outbuf; |
1011 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
1012 | aa5dbdc1 | Gerd Hoffmann | int rc;
|
1013 | a917d384 | pbrook | |
1014 | a917d384 | pbrook | command = buf[0];
|
1015 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
1016 | a917d384 | pbrook | if (r) {
|
1017 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
1018 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
1019 | a917d384 | pbrook | } |
1020 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
1021 | a917d384 | pbrook | single lun, so this should not matter. */
|
1022 | 72aef731 | Christoph Hellwig | r = scsi_new_request(s, tag, lun); |
1023 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
1024 | 2e5d83bb | pbrook | is_write = 0;
|
1025 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
1026 | 2dd791b6 | Hannes Reinecke | |
1027 | 2dd791b6 | Hannes Reinecke | if (scsi_req_parse(&r->req, buf) != 0) { |
1028 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
1029 | 2e5d83bb | pbrook | goto fail;
|
1030 | 2e5d83bb | pbrook | } |
1031 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
1032 | 2e5d83bb | pbrook | { |
1033 | 2e5d83bb | pbrook | int i;
|
1034 | 2dd791b6 | Hannes Reinecke | for (i = 1; i < r->req.cmd.len; i++) { |
1035 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
1036 | 2e5d83bb | pbrook | } |
1037 | 2e5d83bb | pbrook | printf("\n");
|
1038 | 2e5d83bb | pbrook | } |
1039 | 2e5d83bb | pbrook | #endif
|
1040 | aa5dbdc1 | Gerd Hoffmann | |
1041 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
1042 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
1043 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
1044 | ebf46023 | Gerd Hoffmann | if (command != REQUEST_SENSE && command != INQUIRY)
|
1045 | 22864256 | blueswir1 | goto fail;
|
1046 | 2e5d83bb | pbrook | } |
1047 | a917d384 | pbrook | switch (command) {
|
1048 | ebf46023 | Gerd Hoffmann | case TEST_UNIT_READY:
|
1049 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
1050 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
1051 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
1052 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
1053 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
1054 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
1055 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
1056 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
1057 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
1058 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
1059 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
1060 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
1061 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
1062 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
1063 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
1064 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
1065 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
1066 | ebef0bbb | Bernhard Kohl | case REZERO_UNIT:
|
1067 | 8af7a3ab | Kevin Wolf | rc = scsi_disk_emulate_command(r, outbuf); |
1068 | 8af7a3ab | Kevin Wolf | if (rc < 0) { |
1069 | 0b06c059 | Gerd Hoffmann | return 0; |
1070 | aa5dbdc1 | Gerd Hoffmann | } |
1071 | 8af7a3ab | Kevin Wolf | |
1072 | 8af7a3ab | Kevin Wolf | r->iov.iov_len = rc; |
1073 | 0b06c059 | Gerd Hoffmann | break;
|
1074 | ebf46023 | Gerd Hoffmann | case READ_6:
|
1075 | ebf46023 | Gerd Hoffmann | case READ_10:
|
1076 | bd536cf3 | Gerd Hoffmann | case READ_12:
|
1077 | bd536cf3 | Gerd Hoffmann | case READ_16:
|
1078 | 2dd791b6 | Hannes Reinecke | len = r->req.cmd.xfer / d->blocksize; |
1079 | 2dd791b6 | Hannes Reinecke | DPRINTF("Read (sector %" PRId64 ", count %d)\n", r->req.cmd.lba, len); |
1080 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.lba > s->max_lba)
|
1081 | 274fb0e1 | aliguori | goto illegal_lba;
|
1082 | 2dd791b6 | Hannes Reinecke | r->sector = r->req.cmd.lba * s->cluster_size; |
1083 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1084 | 2e5d83bb | pbrook | break;
|
1085 | ebf46023 | Gerd Hoffmann | case WRITE_6:
|
1086 | ebf46023 | Gerd Hoffmann | case WRITE_10:
|
1087 | bd536cf3 | Gerd Hoffmann | case WRITE_12:
|
1088 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
1089 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY:
|
1090 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_12:
|
1091 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_16:
|
1092 | 2dd791b6 | Hannes Reinecke | len = r->req.cmd.xfer / d->blocksize; |
1093 | ebef0bbb | Bernhard Kohl | DPRINTF("Write %s(sector %" PRId64 ", count %d)\n", |
1094 | 2dd791b6 | Hannes Reinecke | (command & 0xe) == 0xe ? "And Verify " : "", |
1095 | 2dd791b6 | Hannes Reinecke | r->req.cmd.lba, len); |
1096 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.lba > s->max_lba)
|
1097 | 274fb0e1 | aliguori | goto illegal_lba;
|
1098 | 2dd791b6 | Hannes Reinecke | r->sector = r->req.cmd.lba * s->cluster_size; |
1099 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1100 | 2e5d83bb | pbrook | is_write = 1;
|
1101 | 2e5d83bb | pbrook | break;
|
1102 | ebef0bbb | Bernhard Kohl | case MODE_SELECT:
|
1103 | 2dd791b6 | Hannes Reinecke | DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer); |
1104 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1105 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1106 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.xfer > 12) { |
1107 | ebef0bbb | Bernhard Kohl | goto fail;
|
1108 | ebef0bbb | Bernhard Kohl | } |
1109 | ebef0bbb | Bernhard Kohl | break;
|
1110 | ebef0bbb | Bernhard Kohl | case MODE_SELECT_10:
|
1111 | 2dd791b6 | Hannes Reinecke | DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer); |
1112 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1113 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1114 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.xfer > 16) { |
1115 | ebef0bbb | Bernhard Kohl | goto fail;
|
1116 | ebef0bbb | Bernhard Kohl | } |
1117 | ebef0bbb | Bernhard Kohl | break;
|
1118 | ebef0bbb | Bernhard Kohl | case SEEK_6:
|
1119 | ebef0bbb | Bernhard Kohl | case SEEK_10:
|
1120 | 2dd791b6 | Hannes Reinecke | DPRINTF("Seek(%d) (sector %" PRId64 ")\n", command == SEEK_6 ? 6 : 10, |
1121 | 2dd791b6 | Hannes Reinecke | r->req.cmd.lba); |
1122 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.lba > s->max_lba) {
|
1123 | ebef0bbb | Bernhard Kohl | goto illegal_lba;
|
1124 | ebef0bbb | Bernhard Kohl | } |
1125 | ebef0bbb | Bernhard Kohl | break;
|
1126 | 2e5d83bb | pbrook | default:
|
1127 | 2dd791b6 | Hannes Reinecke | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
1128 | 2e5d83bb | pbrook | fail:
|
1129 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
1130 | 2dd791b6 | Hannes Reinecke | return 0; |
1131 | 274fb0e1 | aliguori | illegal_lba:
|
1132 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
1133 | 274fb0e1 | aliguori | return 0; |
1134 | 2e5d83bb | pbrook | } |
1135 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
1136 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
1137 | a917d384 | pbrook | } |
1138 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
1139 | a917d384 | pbrook | if (is_write) {
|
1140 | a917d384 | pbrook | return -len;
|
1141 | a917d384 | pbrook | } else {
|
1142 | a917d384 | pbrook | if (!r->sector_count)
|
1143 | a917d384 | pbrook | r->sector_count = -1;
|
1144 | a917d384 | pbrook | return len;
|
1145 | 2e5d83bb | pbrook | } |
1146 | 2e5d83bb | pbrook | } |
1147 | 2e5d83bb | pbrook | |
1148 | e9447f35 | Jan Kiszka | static void scsi_disk_purge_requests(SCSIDiskState *s) |
1149 | 56a14938 | Gerd Hoffmann | { |
1150 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
1151 | 56a14938 | Gerd Hoffmann | |
1152 | 9af99d98 | Gerd Hoffmann | while (!QTAILQ_EMPTY(&s->qdev.requests)) {
|
1153 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, QTAILQ_FIRST(&s->qdev.requests)); |
1154 | e9447f35 | Jan Kiszka | if (r->req.aiocb) {
|
1155 | e9447f35 | Jan Kiszka | bdrv_aio_cancel(r->req.aiocb); |
1156 | e9447f35 | Jan Kiszka | } |
1157 | 9af99d98 | Gerd Hoffmann | scsi_remove_request(r); |
1158 | 9af99d98 | Gerd Hoffmann | } |
1159 | e9447f35 | Jan Kiszka | } |
1160 | e9447f35 | Jan Kiszka | |
1161 | e9447f35 | Jan Kiszka | static void scsi_disk_reset(DeviceState *dev) |
1162 | e9447f35 | Jan Kiszka | { |
1163 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); |
1164 | e9447f35 | Jan Kiszka | uint64_t nb_sectors; |
1165 | e9447f35 | Jan Kiszka | |
1166 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1167 | e9447f35 | Jan Kiszka | |
1168 | e9447f35 | Jan Kiszka | bdrv_get_geometry(s->bs, &nb_sectors); |
1169 | e9447f35 | Jan Kiszka | nb_sectors /= s->cluster_size; |
1170 | e9447f35 | Jan Kiszka | if (nb_sectors) {
|
1171 | e9447f35 | Jan Kiszka | nb_sectors--; |
1172 | e9447f35 | Jan Kiszka | } |
1173 | e9447f35 | Jan Kiszka | s->max_lba = nb_sectors; |
1174 | e9447f35 | Jan Kiszka | } |
1175 | e9447f35 | Jan Kiszka | |
1176 | e9447f35 | Jan Kiszka | static void scsi_destroy(SCSIDevice *dev) |
1177 | e9447f35 | Jan Kiszka | { |
1178 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1179 | e9447f35 | Jan Kiszka | |
1180 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1181 | f8b6cc00 | Markus Armbruster | blockdev_mark_auto_del(s->qdev.conf.bs); |
1182 | 56a14938 | Gerd Hoffmann | } |
1183 | 56a14938 | Gerd Hoffmann | |
1184 | d52affa7 | Gerd Hoffmann | static int scsi_disk_initfn(SCSIDevice *dev) |
1185 | 2e5d83bb | pbrook | { |
1186 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1187 | 7d0d6950 | Markus Armbruster | int is_cd;
|
1188 | f8b6cc00 | Markus Armbruster | DriveInfo *dinfo; |
1189 | 2e5d83bb | pbrook | |
1190 | f8b6cc00 | Markus Armbruster | if (!s->qdev.conf.bs) {
|
1191 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: drive property not set");
|
1192 | d52affa7 | Gerd Hoffmann | return -1; |
1193 | d52affa7 | Gerd Hoffmann | } |
1194 | f8b6cc00 | Markus Armbruster | s->bs = s->qdev.conf.bs; |
1195 | 7d0d6950 | Markus Armbruster | is_cd = bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM; |
1196 | d52affa7 | Gerd Hoffmann | |
1197 | 98f28ad7 | Markus Armbruster | if (!is_cd && !bdrv_is_inserted(s->bs)) {
|
1198 | 98f28ad7 | Markus Armbruster | error_report("Device needs media, but drive is empty");
|
1199 | 98f28ad7 | Markus Armbruster | return -1; |
1200 | 98f28ad7 | Markus Armbruster | } |
1201 | 98f28ad7 | Markus Armbruster | |
1202 | a0fef654 | Markus Armbruster | if (!s->serial) {
|
1203 | f8b6cc00 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
|
1204 | f8b6cc00 | Markus Armbruster | dinfo = drive_get_by_blockdev(s->bs); |
1205 | f8b6cc00 | Markus Armbruster | s->serial = qemu_strdup(*dinfo->serial ? dinfo->serial : "0");
|
1206 | a0fef654 | Markus Armbruster | } |
1207 | a0fef654 | Markus Armbruster | |
1208 | 552fee93 | Markus Armbruster | if (!s->version) {
|
1209 | 552fee93 | Markus Armbruster | s->version = qemu_strdup(QEMU_VERSION); |
1210 | 552fee93 | Markus Armbruster | } |
1211 | 552fee93 | Markus Armbruster | |
1212 | 32bb404a | Markus Armbruster | if (bdrv_is_sg(s->bs)) {
|
1213 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: unwanted /dev/sg*");
|
1214 | 32bb404a | Markus Armbruster | return -1; |
1215 | 32bb404a | Markus Armbruster | } |
1216 | 32bb404a | Markus Armbruster | |
1217 | 7d0d6950 | Markus Armbruster | if (is_cd) {
|
1218 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = 2048;
|
1219 | 2e5d83bb | pbrook | } else {
|
1220 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
1221 | 2e5d83bb | pbrook | } |
1222 | 8cfacf07 | Christoph Hellwig | s->cluster_size = s->qdev.blocksize / 512;
|
1223 | 73fdb1e1 | Christoph Hellwig | s->bs->buffer_alignment = s->qdev.blocksize; |
1224 | 8cfacf07 | Christoph Hellwig | |
1225 | 91376656 | Gerd Hoffmann | s->qdev.type = TYPE_DISK; |
1226 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
1227 | 7d0d6950 | Markus Armbruster | bdrv_set_removable(s->bs, is_cd); |
1228 | d52affa7 | Gerd Hoffmann | return 0; |
1229 | d52affa7 | Gerd Hoffmann | } |
1230 | d52affa7 | Gerd Hoffmann | |
1231 | d52affa7 | Gerd Hoffmann | static SCSIDeviceInfo scsi_disk_info = {
|
1232 | d52affa7 | Gerd Hoffmann | .qdev.name = "scsi-disk",
|
1233 | d52affa7 | Gerd Hoffmann | .qdev.desc = "virtual scsi disk or cdrom",
|
1234 | d52affa7 | Gerd Hoffmann | .qdev.size = sizeof(SCSIDiskState),
|
1235 | e9447f35 | Jan Kiszka | .qdev.reset = scsi_disk_reset, |
1236 | d52affa7 | Gerd Hoffmann | .init = scsi_disk_initfn, |
1237 | 56a14938 | Gerd Hoffmann | .destroy = scsi_destroy, |
1238 | d52affa7 | Gerd Hoffmann | .send_command = scsi_send_command, |
1239 | d52affa7 | Gerd Hoffmann | .read_data = scsi_read_data, |
1240 | d52affa7 | Gerd Hoffmann | .write_data = scsi_write_data, |
1241 | d52affa7 | Gerd Hoffmann | .cancel_io = scsi_cancel_io, |
1242 | d52affa7 | Gerd Hoffmann | .get_buf = scsi_get_buf, |
1243 | d52affa7 | Gerd Hoffmann | .qdev.props = (Property[]) { |
1244 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), |
1245 | 383b4d9b | Gerd Hoffmann | DEFINE_PROP_STRING("ver", SCSIDiskState, version),
|
1246 | a0fef654 | Markus Armbruster | DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
|
1247 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
1248 | d52affa7 | Gerd Hoffmann | }, |
1249 | d52affa7 | Gerd Hoffmann | }; |
1250 | d52affa7 | Gerd Hoffmann | |
1251 | d52affa7 | Gerd Hoffmann | static void scsi_disk_register_devices(void) |
1252 | d52affa7 | Gerd Hoffmann | { |
1253 | d52affa7 | Gerd Hoffmann | scsi_qdev_register(&scsi_disk_info); |
1254 | 8ccc2ace | ths | } |
1255 | d52affa7 | Gerd Hoffmann | device_init(scsi_disk_register_devices) |