root / hw / scsi-disk.c @ 8af7a3ab
History | View | Annotate | Download (37 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 | ea8a5d7f | aliguori | |
49 | d52affa7 | Gerd Hoffmann | typedef struct SCSIDiskState SCSIDiskState; |
50 | d52affa7 | Gerd Hoffmann | |
51 | 4c41d2ef | Gerd Hoffmann | typedef struct SCSIDiskReq { |
52 | 4c41d2ef | Gerd Hoffmann | SCSIRequest req; |
53 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
|
54 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
|
55 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
|
56 | e035b43d | aliguori | uint64_t sector; |
57 | e035b43d | aliguori | uint32_t sector_count; |
58 | c87c0672 | aliguori | struct iovec iov;
|
59 | c87c0672 | aliguori | QEMUIOVector qiov; |
60 | ea8a5d7f | aliguori | uint32_t status; |
61 | 4c41d2ef | Gerd Hoffmann | } SCSIDiskReq; |
62 | a917d384 | pbrook | |
63 | d52affa7 | Gerd Hoffmann | struct SCSIDiskState
|
64 | a917d384 | pbrook | { |
65 | d52affa7 | Gerd Hoffmann | SCSIDevice qdev; |
66 | 428c149b | Christoph Hellwig | BlockDriverState *bs; |
67 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
|
68 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
|
69 | a917d384 | pbrook | int cluster_size;
|
70 | 274fb0e1 | aliguori | uint64_t max_lba; |
71 | 213189ab | Markus Armbruster | QEMUBH *bh; |
72 | 383b4d9b | Gerd Hoffmann | char *version;
|
73 | a0fef654 | Markus Armbruster | char *serial;
|
74 | 2e5d83bb | pbrook | }; |
75 | 2e5d83bb | pbrook | |
76 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type); |
77 | 5dba48a8 | Kevin Wolf | |
78 | 72aef731 | Christoph Hellwig | static SCSIDiskReq *scsi_new_request(SCSIDiskState *s, uint32_t tag,
|
79 | 72aef731 | Christoph Hellwig | uint32_t lun) |
80 | 2e5d83bb | pbrook | { |
81 | 89b08ae1 | Gerd Hoffmann | SCSIRequest *req; |
82 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
83 | a917d384 | pbrook | |
84 | 72aef731 | Christoph Hellwig | req = scsi_req_alloc(sizeof(SCSIDiskReq), &s->qdev, tag, lun);
|
85 | 89b08ae1 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
86 | 72aef731 | Christoph Hellwig | r->iov.iov_base = qemu_blockalign(s->bs, SCSI_DMA_BUF_SIZE); |
87 | a917d384 | pbrook | return r;
|
88 | 2e5d83bb | pbrook | } |
89 | 2e5d83bb | pbrook | |
90 | 4c41d2ef | Gerd Hoffmann | static void scsi_remove_request(SCSIDiskReq *r) |
91 | 4d611c9a | pbrook | { |
92 | f8a83245 | Herve Poussineau | qemu_vfree(r->iov.iov_base); |
93 | 89b08ae1 | Gerd Hoffmann | scsi_req_free(&r->req); |
94 | 4d611c9a | pbrook | } |
95 | 4d611c9a | pbrook | |
96 | 4c41d2ef | Gerd Hoffmann | static SCSIDiskReq *scsi_find_request(SCSIDiskState *s, uint32_t tag)
|
97 | 4d611c9a | pbrook | { |
98 | 89b08ae1 | Gerd Hoffmann | return DO_UPCAST(SCSIDiskReq, req, scsi_req_find(&s->qdev, tag));
|
99 | a917d384 | pbrook | } |
100 | a917d384 | pbrook | |
101 | ed3a34a3 | Gerd Hoffmann | static void scsi_req_set_status(SCSIRequest *req, int status, int sense_code) |
102 | ed3a34a3 | Gerd Hoffmann | { |
103 | ed3a34a3 | Gerd Hoffmann | req->status = status; |
104 | ed3a34a3 | Gerd Hoffmann | scsi_dev_set_sense(req->dev, sense_code); |
105 | ed3a34a3 | Gerd Hoffmann | } |
106 | ed3a34a3 | Gerd Hoffmann | |
107 | a917d384 | pbrook | /* Helper function for command completion. */
|
108 | 4c41d2ef | Gerd Hoffmann | static void scsi_command_complete(SCSIDiskReq *r, int status, int sense) |
109 | a917d384 | pbrook | { |
110 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n",
|
111 | 4c41d2ef | Gerd Hoffmann | r->req.tag, status, sense); |
112 | ed3a34a3 | Gerd Hoffmann | scsi_req_set_status(&r->req, status, sense); |
113 | ed3a34a3 | Gerd Hoffmann | scsi_req_complete(&r->req); |
114 | 89b08ae1 | Gerd Hoffmann | scsi_remove_request(r); |
115 | 4d611c9a | pbrook | } |
116 | 4d611c9a | pbrook | |
117 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
|
118 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
119 | 4d611c9a | pbrook | { |
120 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
121 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
122 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
|
123 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
124 | a917d384 | pbrook | if (r) {
|
125 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb)
|
126 | 4c41d2ef | Gerd Hoffmann | bdrv_aio_cancel(r->req.aiocb); |
127 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
|
128 | a917d384 | pbrook | scsi_remove_request(r); |
129 | a917d384 | pbrook | } |
130 | a917d384 | pbrook | } |
131 | a917d384 | pbrook | |
132 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
133 | a917d384 | pbrook | { |
134 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
135 | 5dba48a8 | Kevin Wolf | int n;
|
136 | a917d384 | pbrook | |
137 | 3e94cb02 | Jan Kiszka | r->req.aiocb = NULL;
|
138 | 3e94cb02 | Jan Kiszka | |
139 | a917d384 | pbrook | if (ret) {
|
140 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_READ)) {
|
141 | 5dba48a8 | Kevin Wolf | return;
|
142 | 5dba48a8 | Kevin Wolf | } |
143 | 4d611c9a | pbrook | } |
144 | 5dba48a8 | Kevin Wolf | |
145 | aa2b1e89 | Bernhard Kohl | DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->iov.iov_len);
|
146 | a917d384 | pbrook | |
147 | 5dba48a8 | Kevin Wolf | n = r->iov.iov_len / 512;
|
148 | 5dba48a8 | Kevin Wolf | r->sector += n; |
149 | 5dba48a8 | Kevin Wolf | r->sector_count -= n; |
150 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
151 | 4d611c9a | pbrook | } |
152 | 4d611c9a | pbrook | |
153 | 5dba48a8 | Kevin Wolf | |
154 | 5dba48a8 | Kevin Wolf | static void scsi_read_request(SCSIDiskReq *r) |
155 | 2e5d83bb | pbrook | { |
156 | 5dba48a8 | Kevin Wolf | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
157 | 2e5d83bb | pbrook | uint32_t n; |
158 | 2e5d83bb | pbrook | |
159 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
160 | aa2b1e89 | Bernhard Kohl | DPRINTF("Read buf_len=%zd\n", r->iov.iov_len);
|
161 | a917d384 | pbrook | r->sector_count = 0;
|
162 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, r->iov.iov_len); |
163 | a917d384 | pbrook | return;
|
164 | 2e5d83bb | pbrook | } |
165 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
|
166 | a917d384 | pbrook | if (r->sector_count == 0) { |
167 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
168 | a917d384 | pbrook | return;
|
169 | 2e5d83bb | pbrook | } |
170 | 2e5d83bb | pbrook | |
171 | a917d384 | pbrook | n = r->sector_count; |
172 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
173 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
|
174 | a917d384 | pbrook | |
175 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
|
176 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
177 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_readv(s->bs, r->sector, &r->qiov, n, |
178 | c87c0672 | aliguori | scsi_read_complete, r); |
179 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
180 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
181 | 2e5d83bb | pbrook | } |
182 | 2e5d83bb | pbrook | |
183 | 5dba48a8 | Kevin Wolf | /* Read more data from scsi device into buffer. */
|
184 | 5dba48a8 | Kevin Wolf | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
185 | ea8a5d7f | aliguori | { |
186 | 5dba48a8 | Kevin Wolf | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
187 | 5dba48a8 | Kevin Wolf | SCSIDiskReq *r; |
188 | 5dba48a8 | Kevin Wolf | |
189 | 5dba48a8 | Kevin Wolf | r = scsi_find_request(s, tag); |
190 | 5dba48a8 | Kevin Wolf | if (!r) {
|
191 | 5dba48a8 | Kevin Wolf | BADF("Bad read tag 0x%x\n", tag);
|
192 | 5dba48a8 | Kevin Wolf | /* ??? This is the wrong error. */
|
193 | 5dba48a8 | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
194 | 5dba48a8 | Kevin Wolf | return;
|
195 | 5dba48a8 | Kevin Wolf | } |
196 | 5dba48a8 | Kevin Wolf | |
197 | 5dba48a8 | Kevin Wolf | /* No data transfer may already be in progress */
|
198 | 5dba48a8 | Kevin Wolf | assert(r->req.aiocb == NULL);
|
199 | 5dba48a8 | Kevin Wolf | |
200 | 5dba48a8 | Kevin Wolf | scsi_read_request(r); |
201 | 5dba48a8 | Kevin Wolf | } |
202 | 5dba48a8 | Kevin Wolf | |
203 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) |
204 | 5dba48a8 | Kevin Wolf | { |
205 | 5dba48a8 | Kevin Wolf | int is_read = (type == SCSI_REQ_STATUS_RETRY_READ);
|
206 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
207 | 5dba48a8 | Kevin Wolf | BlockErrorAction action = bdrv_get_on_error(s->bs, is_read); |
208 | ea8a5d7f | aliguori | |
209 | 380f640f | Luiz Capitulino | if (action == BLOCK_ERR_IGNORE) {
|
210 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read); |
211 | ea8a5d7f | aliguori | return 0; |
212 | 380f640f | Luiz Capitulino | } |
213 | ea8a5d7f | aliguori | |
214 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
|
215 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
216 | 5dba48a8 | Kevin Wolf | |
217 | 5dba48a8 | Kevin Wolf | type &= SCSI_REQ_STATUS_RETRY_TYPE_MASK; |
218 | 5dba48a8 | Kevin Wolf | r->status |= SCSI_REQ_STATUS_RETRY | type; |
219 | 5dba48a8 | Kevin Wolf | |
220 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); |
221 | 554a310b | Luiz Capitulino | vm_stop(0);
|
222 | ea8a5d7f | aliguori | } else {
|
223 | 5dba48a8 | Kevin Wolf | if (type == SCSI_REQ_STATUS_RETRY_READ) {
|
224 | 5dba48a8 | Kevin Wolf | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, 0);
|
225 | 5dba48a8 | Kevin Wolf | } |
226 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
227 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
228 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); |
229 | ea8a5d7f | aliguori | } |
230 | ea8a5d7f | aliguori | |
231 | ea8a5d7f | aliguori | return 1; |
232 | ea8a5d7f | aliguori | } |
233 | ea8a5d7f | aliguori | |
234 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
235 | 4d611c9a | pbrook | { |
236 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
237 | a917d384 | pbrook | uint32_t len; |
238 | ea8a5d7f | aliguori | uint32_t n; |
239 | ea8a5d7f | aliguori | |
240 | 4c41d2ef | Gerd Hoffmann | r->req.aiocb = NULL;
|
241 | 4d611c9a | pbrook | |
242 | 4d611c9a | pbrook | if (ret) {
|
243 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_WRITE)) {
|
244 | ea8a5d7f | aliguori | return;
|
245 | 5dba48a8 | Kevin Wolf | } |
246 | 4d611c9a | pbrook | } |
247 | 4d611c9a | pbrook | |
248 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
|
249 | ea8a5d7f | aliguori | r->sector += n; |
250 | ea8a5d7f | aliguori | r->sector_count -= n; |
251 | a917d384 | pbrook | if (r->sector_count == 0) { |
252 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
253 | a917d384 | pbrook | } else {
|
254 | a917d384 | pbrook | len = r->sector_count * 512;
|
255 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
|
256 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
257 | a917d384 | pbrook | } |
258 | c87c0672 | aliguori | r->iov.iov_len = len; |
259 | 4c41d2ef | Gerd Hoffmann | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, len);
|
260 | 4c41d2ef | Gerd Hoffmann | r->req.bus->complete(r->req.bus, SCSI_REASON_DATA, r->req.tag, len); |
261 | 4d611c9a | pbrook | } |
262 | 4d611c9a | pbrook | } |
263 | 4d611c9a | pbrook | |
264 | 4c41d2ef | Gerd Hoffmann | static void scsi_write_request(SCSIDiskReq *r) |
265 | ea8a5d7f | aliguori | { |
266 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
267 | ea8a5d7f | aliguori | uint32_t n; |
268 | ea8a5d7f | aliguori | |
269 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
|
270 | ea8a5d7f | aliguori | if (n) {
|
271 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
272 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_writev(s->bs, r->sector, &r->qiov, n, |
273 | c87c0672 | aliguori | scsi_write_complete, r); |
274 | 4c41d2ef | Gerd Hoffmann | if (r->req.aiocb == NULL) |
275 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, |
276 | 0d65e1f8 | Gerd Hoffmann | HARDWARE_ERROR); |
277 | ea8a5d7f | aliguori | } else {
|
278 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
|
279 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
|
280 | ea8a5d7f | aliguori | } |
281 | ea8a5d7f | aliguori | } |
282 | ea8a5d7f | aliguori | |
283 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
|
284 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
|
285 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
286 | 2e5d83bb | pbrook | { |
287 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
288 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
289 | 2e5d83bb | pbrook | |
290 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
|
291 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
292 | a917d384 | pbrook | if (!r) {
|
293 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
|
294 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
295 | 2e5d83bb | pbrook | return 1; |
296 | 2e5d83bb | pbrook | } |
297 | ea8a5d7f | aliguori | |
298 | 5dba48a8 | Kevin Wolf | /* No data transfer may already be in progress */
|
299 | 5dba48a8 | Kevin Wolf | assert(r->req.aiocb == NULL);
|
300 | ea8a5d7f | aliguori | |
301 | ea8a5d7f | aliguori | scsi_write_request(r); |
302 | 2e5d83bb | pbrook | |
303 | a917d384 | pbrook | return 0; |
304 | a917d384 | pbrook | } |
305 | 2e5d83bb | pbrook | |
306 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
307 | ea8a5d7f | aliguori | { |
308 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
309 | 9af99d98 | Gerd Hoffmann | SCSIRequest *req; |
310 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
311 | 213189ab | Markus Armbruster | |
312 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
313 | 213189ab | Markus Armbruster | s->bh = NULL;
|
314 | ea8a5d7f | aliguori | |
315 | 9af99d98 | Gerd Hoffmann | QTAILQ_FOREACH(req, &s->qdev.requests, next) { |
316 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
317 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
|
318 | 5dba48a8 | Kevin Wolf | int status = r->status;
|
319 | 5dba48a8 | Kevin Wolf | r->status &= |
320 | 5dba48a8 | Kevin Wolf | ~(SCSI_REQ_STATUS_RETRY | SCSI_REQ_STATUS_RETRY_TYPE_MASK); |
321 | 5dba48a8 | Kevin Wolf | |
322 | 5dba48a8 | Kevin Wolf | switch (status & SCSI_REQ_STATUS_RETRY_TYPE_MASK) {
|
323 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_READ:
|
324 | 5dba48a8 | Kevin Wolf | scsi_read_request(r); |
325 | 5dba48a8 | Kevin Wolf | break;
|
326 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_WRITE:
|
327 | 5dba48a8 | Kevin Wolf | scsi_write_request(r); |
328 | 5dba48a8 | Kevin Wolf | break;
|
329 | 5dba48a8 | Kevin Wolf | } |
330 | ea8a5d7f | aliguori | } |
331 | ea8a5d7f | aliguori | } |
332 | ea8a5d7f | aliguori | } |
333 | ea8a5d7f | aliguori | |
334 | 213189ab | Markus Armbruster | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
335 | 213189ab | Markus Armbruster | { |
336 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
337 | 213189ab | Markus Armbruster | |
338 | 213189ab | Markus Armbruster | if (!running)
|
339 | 213189ab | Markus Armbruster | return;
|
340 | 213189ab | Markus Armbruster | |
341 | 213189ab | Markus Armbruster | if (!s->bh) {
|
342 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
343 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
344 | 213189ab | Markus Armbruster | } |
345 | 213189ab | Markus Armbruster | } |
346 | 213189ab | Markus Armbruster | |
347 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
|
348 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
|
349 | a917d384 | pbrook | { |
350 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
351 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
352 | 2e5d83bb | pbrook | |
353 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
354 | a917d384 | pbrook | if (!r) {
|
355 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
|
356 | a917d384 | pbrook | return NULL; |
357 | 4d611c9a | pbrook | } |
358 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
|
359 | 2e5d83bb | pbrook | } |
360 | 2e5d83bb | pbrook | |
361 | 0b06c059 | Gerd Hoffmann | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
362 | 0b06c059 | Gerd Hoffmann | { |
363 | 383b4d9b | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
364 | 0b06c059 | Gerd Hoffmann | int buflen = 0; |
365 | 0b06c059 | Gerd Hoffmann | |
366 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x2) { |
367 | 0b06c059 | Gerd Hoffmann | /* Command support data - optional, not implemented */
|
368 | 0b06c059 | Gerd Hoffmann | BADF("optional INQUIRY command support request not implemented\n");
|
369 | 0b06c059 | Gerd Hoffmann | return -1; |
370 | 0b06c059 | Gerd Hoffmann | } |
371 | 0b06c059 | Gerd Hoffmann | |
372 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x1) { |
373 | 0b06c059 | Gerd Hoffmann | /* Vital product data */
|
374 | 0b06c059 | Gerd Hoffmann | uint8_t page_code = req->cmd.buf[2];
|
375 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 4) { |
376 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is "
|
377 | 0b06c059 | Gerd Hoffmann | "less than 4\n", page_code, req->cmd.xfer);
|
378 | 0b06c059 | Gerd Hoffmann | return -1; |
379 | 0b06c059 | Gerd Hoffmann | } |
380 | 0b06c059 | Gerd Hoffmann | |
381 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
382 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 5;
|
383 | 0b06c059 | Gerd Hoffmann | } else {
|
384 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0;
|
385 | 0b06c059 | Gerd Hoffmann | } |
386 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = page_code ; // this page
|
387 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00;
|
388 | 0b06c059 | Gerd Hoffmann | |
389 | 0b06c059 | Gerd Hoffmann | switch (page_code) {
|
390 | 0b06c059 | Gerd Hoffmann | case 0x00: /* Supported page codes, mandatory */ |
391 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Supported pages] "
|
392 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
393 | ee3659e3 | Christoph Hellwig | outbuf[buflen++] = 4; // number of pages |
394 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
395 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x80; // unit serial number |
396 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x83; // device identification |
397 | ee3659e3 | Christoph Hellwig | outbuf[buflen++] = 0xb0; // block device characteristics |
398 | 0b06c059 | Gerd Hoffmann | break;
|
399 | 0b06c059 | Gerd Hoffmann | |
400 | 0b06c059 | Gerd Hoffmann | case 0x80: /* Device serial number, optional */ |
401 | 0b06c059 | Gerd Hoffmann | { |
402 | a0fef654 | Markus Armbruster | int l = strlen(s->serial);
|
403 | 0b06c059 | Gerd Hoffmann | |
404 | 0b06c059 | Gerd Hoffmann | if (l > req->cmd.xfer)
|
405 | 0b06c059 | Gerd Hoffmann | l = req->cmd.xfer; |
406 | 0b06c059 | Gerd Hoffmann | if (l > 20) |
407 | 0b06c059 | Gerd Hoffmann | l = 20;
|
408 | 0b06c059 | Gerd Hoffmann | |
409 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Serial number] "
|
410 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
411 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = l; |
412 | a0fef654 | Markus Armbruster | memcpy(outbuf+buflen, s->serial, l); |
413 | 0b06c059 | Gerd Hoffmann | buflen += l; |
414 | 0b06c059 | Gerd Hoffmann | break;
|
415 | 0b06c059 | Gerd Hoffmann | } |
416 | 0b06c059 | Gerd Hoffmann | |
417 | 0b06c059 | Gerd Hoffmann | case 0x83: /* Device identification page, mandatory */ |
418 | 0b06c059 | Gerd Hoffmann | { |
419 | 0b06c059 | Gerd Hoffmann | int max_len = 255 - 8; |
420 | 428c149b | Christoph Hellwig | int id_len = strlen(bdrv_get_device_name(s->bs));
|
421 | 0b06c059 | Gerd Hoffmann | |
422 | 0b06c059 | Gerd Hoffmann | if (id_len > max_len)
|
423 | 0b06c059 | Gerd Hoffmann | id_len = max_len; |
424 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Device identification] "
|
425 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
426 | 0b06c059 | Gerd Hoffmann | |
427 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 3 + id_len;
|
428 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x2; // ASCII |
429 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // not officially assigned |
430 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // reserved |
431 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = id_len; // length of data following
|
432 | 0b06c059 | Gerd Hoffmann | |
433 | 428c149b | Christoph Hellwig | memcpy(outbuf+buflen, bdrv_get_device_name(s->bs), id_len); |
434 | 0b06c059 | Gerd Hoffmann | buflen += id_len; |
435 | 0b06c059 | Gerd Hoffmann | break;
|
436 | 0b06c059 | Gerd Hoffmann | } |
437 | ee3659e3 | Christoph Hellwig | case 0xb0: /* block device characteristics */ |
438 | ee3659e3 | Christoph Hellwig | { |
439 | 8cfacf07 | Christoph Hellwig | unsigned int min_io_size = |
440 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.min_io_size / s->qdev.blocksize; |
441 | 8cfacf07 | Christoph Hellwig | unsigned int opt_io_size = |
442 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.opt_io_size / s->qdev.blocksize; |
443 | ee3659e3 | Christoph Hellwig | |
444 | ee3659e3 | Christoph Hellwig | /* required VPD size with unmap support */
|
445 | ee3659e3 | Christoph Hellwig | outbuf[3] = buflen = 0x3c; |
446 | ee3659e3 | Christoph Hellwig | |
447 | ee3659e3 | Christoph Hellwig | memset(outbuf + 4, 0, buflen - 4); |
448 | ee3659e3 | Christoph Hellwig | |
449 | ee3659e3 | Christoph Hellwig | /* optimal transfer length granularity */
|
450 | ee3659e3 | Christoph Hellwig | outbuf[6] = (min_io_size >> 8) & 0xff; |
451 | ee3659e3 | Christoph Hellwig | outbuf[7] = min_io_size & 0xff; |
452 | ee3659e3 | Christoph Hellwig | |
453 | ee3659e3 | Christoph Hellwig | /* optimal transfer length */
|
454 | ee3659e3 | Christoph Hellwig | outbuf[12] = (opt_io_size >> 24) & 0xff; |
455 | ee3659e3 | Christoph Hellwig | outbuf[13] = (opt_io_size >> 16) & 0xff; |
456 | ee3659e3 | Christoph Hellwig | outbuf[14] = (opt_io_size >> 8) & 0xff; |
457 | ee3659e3 | Christoph Hellwig | outbuf[15] = opt_io_size & 0xff; |
458 | ee3659e3 | Christoph Hellwig | break;
|
459 | ee3659e3 | Christoph Hellwig | } |
460 | 0b06c059 | Gerd Hoffmann | default:
|
461 | 0b06c059 | Gerd Hoffmann | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
462 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", page_code, req->cmd.xfer);
|
463 | 0b06c059 | Gerd Hoffmann | return -1; |
464 | 0b06c059 | Gerd Hoffmann | } |
465 | 0b06c059 | Gerd Hoffmann | /* done with EVPD */
|
466 | 0b06c059 | Gerd Hoffmann | return buflen;
|
467 | 0b06c059 | Gerd Hoffmann | } |
468 | 0b06c059 | Gerd Hoffmann | |
469 | 0b06c059 | Gerd Hoffmann | /* Standard INQUIRY data */
|
470 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[2] != 0) { |
471 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) page or code "
|
472 | 0b06c059 | Gerd Hoffmann | "is non-zero [%02X]\n", req->cmd.buf[2]); |
473 | 0b06c059 | Gerd Hoffmann | return -1; |
474 | 0b06c059 | Gerd Hoffmann | } |
475 | 0b06c059 | Gerd Hoffmann | |
476 | 0b06c059 | Gerd Hoffmann | /* PAGE CODE == 0 */
|
477 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 5) { |
478 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) buffer size %zd "
|
479 | 0b06c059 | Gerd Hoffmann | "is less than 5\n", req->cmd.xfer);
|
480 | 0b06c059 | Gerd Hoffmann | return -1; |
481 | 0b06c059 | Gerd Hoffmann | } |
482 | 0b06c059 | Gerd Hoffmann | |
483 | 0b06c059 | Gerd Hoffmann | buflen = req->cmd.xfer; |
484 | 0b06c059 | Gerd Hoffmann | if (buflen > SCSI_MAX_INQUIRY_LEN)
|
485 | 0b06c059 | Gerd Hoffmann | buflen = SCSI_MAX_INQUIRY_LEN; |
486 | 0b06c059 | Gerd Hoffmann | |
487 | 0b06c059 | Gerd Hoffmann | memset(outbuf, 0, buflen);
|
488 | 0b06c059 | Gerd Hoffmann | |
489 | 0b06c059 | Gerd Hoffmann | if (req->lun || req->cmd.buf[1] >> 5) { |
490 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0x7f; /* LUN not supported */ |
491 | 0b06c059 | Gerd Hoffmann | return buflen;
|
492 | 0b06c059 | Gerd Hoffmann | } |
493 | 0b06c059 | Gerd Hoffmann | |
494 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
495 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 5; |
496 | 0b06c059 | Gerd Hoffmann | outbuf[1] = 0x80; |
497 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
498 | 0b06c059 | Gerd Hoffmann | } else {
|
499 | 0b06c059 | Gerd Hoffmann | outbuf[0] = 0; |
500 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
501 | 0b06c059 | Gerd Hoffmann | } |
502 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[8], "QEMU ", 8); |
503 | 314b1811 | Gerd Hoffmann | memset(&outbuf[32], 0, 4); |
504 | 552fee93 | Markus Armbruster | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
505 | 99aba0c4 | Christoph Hellwig | /*
|
506 | 99aba0c4 | Christoph Hellwig | * We claim conformance to SPC-3, which is required for guests
|
507 | 99aba0c4 | Christoph Hellwig | * to ask for modern features like READ CAPACITY(16) or the
|
508 | 99aba0c4 | Christoph Hellwig | * block characteristics VPD page by default. Not all of SPC-3
|
509 | 99aba0c4 | Christoph Hellwig | * is actually implemented, but we're good enough.
|
510 | 99aba0c4 | Christoph Hellwig | */
|
511 | ee3659e3 | Christoph Hellwig | outbuf[2] = 5; |
512 | 0b06c059 | Gerd Hoffmann | outbuf[3] = 2; /* Format 2 */ |
513 | ad3cea42 | Artyom Tarasenko | |
514 | ad3cea42 | Artyom Tarasenko | if (buflen > 36) { |
515 | ad3cea42 | Artyom Tarasenko | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
516 | ad3cea42 | Artyom Tarasenko | } else {
|
517 | ad3cea42 | Artyom Tarasenko | /* If the allocation length of CDB is too small,
|
518 | ad3cea42 | Artyom Tarasenko | the additional length is not adjusted */
|
519 | ad3cea42 | Artyom Tarasenko | outbuf[4] = 36 - 5; |
520 | ad3cea42 | Artyom Tarasenko | } |
521 | ad3cea42 | Artyom Tarasenko | |
522 | 0b06c059 | Gerd Hoffmann | /* Sync data transfer and TCQ. */
|
523 | 0b06c059 | Gerd Hoffmann | outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0); |
524 | 0b06c059 | Gerd Hoffmann | return buflen;
|
525 | 0b06c059 | Gerd Hoffmann | } |
526 | 0b06c059 | Gerd Hoffmann | |
527 | 282ab04e | Bernhard Kohl | static int mode_sense_page(SCSIRequest *req, int page, uint8_t *p, |
528 | 282ab04e | Bernhard Kohl | int page_control)
|
529 | ebddfcbe | Gerd Hoffmann | { |
530 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
531 | 428c149b | Christoph Hellwig | BlockDriverState *bdrv = s->bs; |
532 | ebddfcbe | Gerd Hoffmann | int cylinders, heads, secs;
|
533 | ebddfcbe | Gerd Hoffmann | |
534 | 282ab04e | Bernhard Kohl | /*
|
535 | 282ab04e | Bernhard Kohl | * If Changeable Values are requested, a mask denoting those mode parameters
|
536 | 282ab04e | Bernhard Kohl | * that are changeable shall be returned. As we currently don't support
|
537 | 282ab04e | Bernhard Kohl | * parameter changes via MODE_SELECT all bits are returned set to zero.
|
538 | 282ab04e | Bernhard Kohl | * The buffer was already menset to zero by the caller of this function.
|
539 | 282ab04e | Bernhard Kohl | */
|
540 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
541 | ebddfcbe | Gerd Hoffmann | case 4: /* Rigid disk device geometry page. */ |
542 | ebddfcbe | Gerd Hoffmann | p[0] = 4; |
543 | ebddfcbe | Gerd Hoffmann | p[1] = 0x16; |
544 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
545 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
546 | 282ab04e | Bernhard Kohl | } |
547 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
548 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
549 | ebddfcbe | Gerd Hoffmann | p[2] = (cylinders >> 16) & 0xff; |
550 | ebddfcbe | Gerd Hoffmann | p[3] = (cylinders >> 8) & 0xff; |
551 | ebddfcbe | Gerd Hoffmann | p[4] = cylinders & 0xff; |
552 | ebddfcbe | Gerd Hoffmann | p[5] = heads & 0xff; |
553 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
554 | ebddfcbe | Gerd Hoffmann | p[6] = (cylinders >> 16) & 0xff; |
555 | ebddfcbe | Gerd Hoffmann | p[7] = (cylinders >> 8) & 0xff; |
556 | ebddfcbe | Gerd Hoffmann | p[8] = cylinders & 0xff; |
557 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
558 | ebddfcbe | Gerd Hoffmann | p[9] = (cylinders >> 16) & 0xff; |
559 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
560 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
561 | ebddfcbe | Gerd Hoffmann | /* Device step rate [ns], 200ns */
|
562 | ebddfcbe | Gerd Hoffmann | p[12] = 0; |
563 | ebddfcbe | Gerd Hoffmann | p[13] = 200; |
564 | ebddfcbe | Gerd Hoffmann | /* Landing zone cylinder */
|
565 | ebddfcbe | Gerd Hoffmann | p[14] = 0xff; |
566 | ebddfcbe | Gerd Hoffmann | p[15] = 0xff; |
567 | ebddfcbe | Gerd Hoffmann | p[16] = 0xff; |
568 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
569 | ebddfcbe | Gerd Hoffmann | p[20] = (5400 >> 8) & 0xff; |
570 | ebddfcbe | Gerd Hoffmann | p[21] = 5400 & 0xff; |
571 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
572 | ebddfcbe | Gerd Hoffmann | |
573 | ebddfcbe | Gerd Hoffmann | case 5: /* Flexible disk device geometry page. */ |
574 | ebddfcbe | Gerd Hoffmann | p[0] = 5; |
575 | ebddfcbe | Gerd Hoffmann | p[1] = 0x1e; |
576 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
577 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
578 | 282ab04e | Bernhard Kohl | } |
579 | ebddfcbe | Gerd Hoffmann | /* Transfer rate [kbit/s], 5Mbit/s */
|
580 | ebddfcbe | Gerd Hoffmann | p[2] = 5000 >> 8; |
581 | ebddfcbe | Gerd Hoffmann | p[3] = 5000 & 0xff; |
582 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
583 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
584 | ebddfcbe | Gerd Hoffmann | p[4] = heads & 0xff; |
585 | ebddfcbe | Gerd Hoffmann | p[5] = secs & 0xff; |
586 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
587 | ebddfcbe | Gerd Hoffmann | p[8] = (cylinders >> 8) & 0xff; |
588 | ebddfcbe | Gerd Hoffmann | p[9] = cylinders & 0xff; |
589 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
590 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
591 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
592 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
593 | ebddfcbe | Gerd Hoffmann | p[12] = (cylinders >> 8) & 0xff; |
594 | ebddfcbe | Gerd Hoffmann | p[13] = cylinders & 0xff; |
595 | ebddfcbe | Gerd Hoffmann | /* Device step rate [100us], 100us */
|
596 | ebddfcbe | Gerd Hoffmann | p[14] = 0; |
597 | ebddfcbe | Gerd Hoffmann | p[15] = 1; |
598 | ebddfcbe | Gerd Hoffmann | /* Device step pulse width [us], 1us */
|
599 | ebddfcbe | Gerd Hoffmann | p[16] = 1; |
600 | ebddfcbe | Gerd Hoffmann | /* Device head settle delay [100us], 100us */
|
601 | ebddfcbe | Gerd Hoffmann | p[17] = 0; |
602 | ebddfcbe | Gerd Hoffmann | p[18] = 1; |
603 | ebddfcbe | Gerd Hoffmann | /* Motor on delay [0.1s], 0.1s */
|
604 | ebddfcbe | Gerd Hoffmann | p[19] = 1; |
605 | ebddfcbe | Gerd Hoffmann | /* Motor off delay [0.1s], 0.1s */
|
606 | ebddfcbe | Gerd Hoffmann | p[20] = 1; |
607 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
608 | ebddfcbe | Gerd Hoffmann | p[28] = (5400 >> 8) & 0xff; |
609 | ebddfcbe | Gerd Hoffmann | p[29] = 5400 & 0xff; |
610 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
611 | ebddfcbe | Gerd Hoffmann | |
612 | ebddfcbe | Gerd Hoffmann | case 8: /* Caching page. */ |
613 | ebddfcbe | Gerd Hoffmann | p[0] = 8; |
614 | ebddfcbe | Gerd Hoffmann | p[1] = 0x12; |
615 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
616 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
617 | 282ab04e | Bernhard Kohl | } |
618 | 428c149b | Christoph Hellwig | if (bdrv_enable_write_cache(s->bs)) {
|
619 | ebddfcbe | Gerd Hoffmann | p[2] = 4; /* WCE */ |
620 | ebddfcbe | Gerd Hoffmann | } |
621 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
622 | ebddfcbe | Gerd Hoffmann | |
623 | ebddfcbe | Gerd Hoffmann | case 0x2a: /* CD Capabilities and Mechanical Status page. */ |
624 | ebddfcbe | Gerd Hoffmann | if (bdrv_get_type_hint(bdrv) != BDRV_TYPE_CDROM)
|
625 | ebddfcbe | Gerd Hoffmann | return 0; |
626 | ebddfcbe | Gerd Hoffmann | p[0] = 0x2a; |
627 | ebddfcbe | Gerd Hoffmann | p[1] = 0x14; |
628 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
629 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
630 | 282ab04e | Bernhard Kohl | } |
631 | ebddfcbe | Gerd Hoffmann | p[2] = 3; // CD-R & CD-RW read |
632 | ebddfcbe | Gerd Hoffmann | p[3] = 0; // Writing not supported |
633 | ebddfcbe | Gerd Hoffmann | p[4] = 0x7f; /* Audio, composite, digital out, |
634 | ebddfcbe | Gerd Hoffmann | mode 2 form 1&2, multi session */
|
635 | ebddfcbe | Gerd Hoffmann | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
636 | ebddfcbe | Gerd Hoffmann | RW corrected, C2 errors, ISRC,
|
637 | ebddfcbe | Gerd Hoffmann | UPC, Bar code */
|
638 | 428c149b | Christoph Hellwig | p[6] = 0x2d | (bdrv_is_locked(s->bs)? 2 : 0); |
639 | ebddfcbe | Gerd Hoffmann | /* Locking supported, jumper present, eject, tray */
|
640 | ebddfcbe | Gerd Hoffmann | p[7] = 0; /* no volume & mute control, no |
641 | ebddfcbe | Gerd Hoffmann | changer */
|
642 | ebddfcbe | Gerd Hoffmann | p[8] = (50 * 176) >> 8; // 50x read speed |
643 | ebddfcbe | Gerd Hoffmann | p[9] = (50 * 176) & 0xff; |
644 | ebddfcbe | Gerd Hoffmann | p[10] = 0 >> 8; // No volume |
645 | ebddfcbe | Gerd Hoffmann | p[11] = 0 & 0xff; |
646 | ebddfcbe | Gerd Hoffmann | p[12] = 2048 >> 8; // 2M buffer |
647 | ebddfcbe | Gerd Hoffmann | p[13] = 2048 & 0xff; |
648 | ebddfcbe | Gerd Hoffmann | p[14] = (16 * 176) >> 8; // 16x read speed current |
649 | ebddfcbe | Gerd Hoffmann | p[15] = (16 * 176) & 0xff; |
650 | ebddfcbe | Gerd Hoffmann | p[18] = (16 * 176) >> 8; // 16x write speed |
651 | ebddfcbe | Gerd Hoffmann | p[19] = (16 * 176) & 0xff; |
652 | ebddfcbe | Gerd Hoffmann | p[20] = (16 * 176) >> 8; // 16x write speed current |
653 | ebddfcbe | Gerd Hoffmann | p[21] = (16 * 176) & 0xff; |
654 | 282ab04e | Bernhard Kohl | return p[1] + 2; |
655 | ebddfcbe | Gerd Hoffmann | |
656 | ebddfcbe | Gerd Hoffmann | default:
|
657 | ebddfcbe | Gerd Hoffmann | return 0; |
658 | ebddfcbe | Gerd Hoffmann | } |
659 | ebddfcbe | Gerd Hoffmann | } |
660 | ebddfcbe | Gerd Hoffmann | |
661 | ebddfcbe | Gerd Hoffmann | static int scsi_disk_emulate_mode_sense(SCSIRequest *req, uint8_t *outbuf) |
662 | ebddfcbe | Gerd Hoffmann | { |
663 | ebddfcbe | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
664 | ebddfcbe | Gerd Hoffmann | uint64_t nb_sectors; |
665 | 282ab04e | Bernhard Kohl | int page, dbd, buflen, page_control;
|
666 | ebddfcbe | Gerd Hoffmann | uint8_t *p; |
667 | ce512ee1 | Bernhard Kohl | uint8_t dev_specific_param; |
668 | ebddfcbe | Gerd Hoffmann | |
669 | ebddfcbe | Gerd Hoffmann | dbd = req->cmd.buf[1] & 0x8; |
670 | ebddfcbe | Gerd Hoffmann | page = req->cmd.buf[2] & 0x3f; |
671 | 282ab04e | Bernhard Kohl | page_control = (req->cmd.buf[2] & 0xc0) >> 6; |
672 | aa2b1e89 | Bernhard Kohl | DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n",
|
673 | aa2b1e89 | Bernhard Kohl | (req->cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, req->cmd.xfer, page_control); |
674 | ebddfcbe | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
675 | ebddfcbe | Gerd Hoffmann | p = outbuf; |
676 | ebddfcbe | Gerd Hoffmann | |
677 | 0056dcc1 | Naphtali Sprei | if (bdrv_is_read_only(s->bs)) {
|
678 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x80; /* Readonly. */ |
679 | ce512ee1 | Bernhard Kohl | } else {
|
680 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x00;
|
681 | ce512ee1 | Bernhard Kohl | } |
682 | ce512ee1 | Bernhard Kohl | |
683 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
684 | ce512ee1 | Bernhard Kohl | p[1] = 0; /* Default media type. */ |
685 | ce512ee1 | Bernhard Kohl | p[2] = dev_specific_param;
|
686 | ce512ee1 | Bernhard Kohl | p[3] = 0; /* Block descriptor length. */ |
687 | ce512ee1 | Bernhard Kohl | p += 4;
|
688 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
689 | ce512ee1 | Bernhard Kohl | p[2] = 0; /* Default media type. */ |
690 | ce512ee1 | Bernhard Kohl | p[3] = dev_specific_param;
|
691 | ce512ee1 | Bernhard Kohl | p[6] = p[7] = 0; /* Block descriptor length. */ |
692 | ce512ee1 | Bernhard Kohl | p += 8;
|
693 | ebddfcbe | Gerd Hoffmann | } |
694 | ebddfcbe | Gerd Hoffmann | |
695 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
696 | 333d50fe | Bernhard Kohl | if (!dbd && nb_sectors) {
|
697 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
698 | ce512ee1 | Bernhard Kohl | outbuf[3] = 8; /* Block descriptor length */ |
699 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
700 | ce512ee1 | Bernhard Kohl | outbuf[7] = 8; /* Block descriptor length */ |
701 | ce512ee1 | Bernhard Kohl | } |
702 | ebddfcbe | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
703 | ebddfcbe | Gerd Hoffmann | if (nb_sectors > 0xffffff) |
704 | 2488b740 | Bernhard Kohl | nb_sectors = 0;
|
705 | ebddfcbe | Gerd Hoffmann | p[0] = 0; /* media density code */ |
706 | ebddfcbe | Gerd Hoffmann | p[1] = (nb_sectors >> 16) & 0xff; |
707 | ebddfcbe | Gerd Hoffmann | p[2] = (nb_sectors >> 8) & 0xff; |
708 | ebddfcbe | Gerd Hoffmann | p[3] = nb_sectors & 0xff; |
709 | ebddfcbe | Gerd Hoffmann | p[4] = 0; /* reserved */ |
710 | ebddfcbe | Gerd Hoffmann | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
711 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
712 | ebddfcbe | Gerd Hoffmann | p[7] = 0; |
713 | ebddfcbe | Gerd Hoffmann | p += 8;
|
714 | ebddfcbe | Gerd Hoffmann | } |
715 | ebddfcbe | Gerd Hoffmann | |
716 | 282ab04e | Bernhard Kohl | if (page_control == 3) { /* Saved Values */ |
717 | 282ab04e | Bernhard Kohl | return -1; /* ILLEGAL_REQUEST */ |
718 | 282ab04e | Bernhard Kohl | } |
719 | 282ab04e | Bernhard Kohl | |
720 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
721 | ebddfcbe | Gerd Hoffmann | case 0x04: |
722 | ebddfcbe | Gerd Hoffmann | case 0x05: |
723 | ebddfcbe | Gerd Hoffmann | case 0x08: |
724 | ebddfcbe | Gerd Hoffmann | case 0x2a: |
725 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, page, p, page_control); |
726 | ebddfcbe | Gerd Hoffmann | break;
|
727 | ebddfcbe | Gerd Hoffmann | case 0x3f: |
728 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, 0x08, p, page_control);
|
729 | 282ab04e | Bernhard Kohl | p += mode_sense_page(req, 0x2a, p, page_control);
|
730 | ebddfcbe | Gerd Hoffmann | break;
|
731 | a9c17b2b | Bernhard Kohl | default:
|
732 | a9c17b2b | Bernhard Kohl | return -1; /* ILLEGAL_REQUEST */ |
733 | ebddfcbe | Gerd Hoffmann | } |
734 | ebddfcbe | Gerd Hoffmann | |
735 | ebddfcbe | Gerd Hoffmann | buflen = p - outbuf; |
736 | ce512ee1 | Bernhard Kohl | /*
|
737 | ce512ee1 | Bernhard Kohl | * The mode data length field specifies the length in bytes of the
|
738 | ce512ee1 | Bernhard Kohl | * following data that is available to be transferred. The mode data
|
739 | ce512ee1 | Bernhard Kohl | * length does not include itself.
|
740 | ce512ee1 | Bernhard Kohl | */
|
741 | ce512ee1 | Bernhard Kohl | if (req->cmd.buf[0] == MODE_SENSE) { |
742 | ce512ee1 | Bernhard Kohl | outbuf[0] = buflen - 1; |
743 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
744 | ce512ee1 | Bernhard Kohl | outbuf[0] = ((buflen - 2) >> 8) & 0xff; |
745 | ce512ee1 | Bernhard Kohl | outbuf[1] = (buflen - 2) & 0xff; |
746 | ce512ee1 | Bernhard Kohl | } |
747 | ebddfcbe | Gerd Hoffmann | if (buflen > req->cmd.xfer)
|
748 | ebddfcbe | Gerd Hoffmann | buflen = req->cmd.xfer; |
749 | ebddfcbe | Gerd Hoffmann | return buflen;
|
750 | ebddfcbe | Gerd Hoffmann | } |
751 | ebddfcbe | Gerd Hoffmann | |
752 | 02880f43 | Gerd Hoffmann | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
753 | 02880f43 | Gerd Hoffmann | { |
754 | 02880f43 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
755 | 02880f43 | Gerd Hoffmann | int start_track, format, msf, toclen;
|
756 | 02880f43 | Gerd Hoffmann | uint64_t nb_sectors; |
757 | 02880f43 | Gerd Hoffmann | |
758 | 02880f43 | Gerd Hoffmann | msf = req->cmd.buf[1] & 2; |
759 | 02880f43 | Gerd Hoffmann | format = req->cmd.buf[2] & 0xf; |
760 | 02880f43 | Gerd Hoffmann | start_track = req->cmd.buf[6];
|
761 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
762 | 02880f43 | Gerd Hoffmann | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
763 | 02880f43 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
764 | 02880f43 | Gerd Hoffmann | switch (format) {
|
765 | 02880f43 | Gerd Hoffmann | case 0: |
766 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
767 | 02880f43 | Gerd Hoffmann | break;
|
768 | 02880f43 | Gerd Hoffmann | case 1: |
769 | 02880f43 | Gerd Hoffmann | /* multi session : only a single session defined */
|
770 | 02880f43 | Gerd Hoffmann | toclen = 12;
|
771 | 02880f43 | Gerd Hoffmann | memset(outbuf, 0, 12); |
772 | 02880f43 | Gerd Hoffmann | outbuf[1] = 0x0a; |
773 | 02880f43 | Gerd Hoffmann | outbuf[2] = 0x01; |
774 | 02880f43 | Gerd Hoffmann | outbuf[3] = 0x01; |
775 | 02880f43 | Gerd Hoffmann | break;
|
776 | 02880f43 | Gerd Hoffmann | case 2: |
777 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
778 | 02880f43 | Gerd Hoffmann | break;
|
779 | 02880f43 | Gerd Hoffmann | default:
|
780 | 02880f43 | Gerd Hoffmann | return -1; |
781 | 02880f43 | Gerd Hoffmann | } |
782 | 02880f43 | Gerd Hoffmann | if (toclen > req->cmd.xfer)
|
783 | 02880f43 | Gerd Hoffmann | toclen = req->cmd.xfer; |
784 | 02880f43 | Gerd Hoffmann | return toclen;
|
785 | 02880f43 | Gerd Hoffmann | } |
786 | 02880f43 | Gerd Hoffmann | |
787 | 8af7a3ab | Kevin Wolf | static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf) |
788 | aa5dbdc1 | Gerd Hoffmann | { |
789 | 8af7a3ab | Kevin Wolf | SCSIRequest *req = &r->req; |
790 | e7e25e32 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
791 | e7e25e32 | Gerd Hoffmann | uint64_t nb_sectors; |
792 | aa5dbdc1 | Gerd Hoffmann | int buflen = 0; |
793 | aa5dbdc1 | Gerd Hoffmann | |
794 | aa5dbdc1 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
795 | aa5dbdc1 | Gerd Hoffmann | case TEST_UNIT_READY:
|
796 | 428c149b | Christoph Hellwig | if (!bdrv_is_inserted(s->bs))
|
797 | aa5dbdc1 | Gerd Hoffmann | goto not_ready;
|
798 | aa5dbdc1 | Gerd Hoffmann | break;
|
799 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
800 | 51ad87c9 | Gerd Hoffmann | if (req->cmd.xfer < 4) |
801 | 51ad87c9 | Gerd Hoffmann | goto illegal_request;
|
802 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 4); |
803 | 51ad87c9 | Gerd Hoffmann | buflen = 4;
|
804 | 51ad87c9 | Gerd Hoffmann | if (req->dev->sense.key == NOT_READY && req->cmd.xfer >= 18) { |
805 | 51ad87c9 | Gerd Hoffmann | memset(outbuf, 0, 18); |
806 | 51ad87c9 | Gerd Hoffmann | buflen = 18;
|
807 | 51ad87c9 | Gerd Hoffmann | outbuf[7] = 10; |
808 | 51ad87c9 | Gerd Hoffmann | /* asc 0x3a, ascq 0: Medium not present */
|
809 | 51ad87c9 | Gerd Hoffmann | outbuf[12] = 0x3a; |
810 | 51ad87c9 | Gerd Hoffmann | outbuf[13] = 0; |
811 | 51ad87c9 | Gerd Hoffmann | } |
812 | 51ad87c9 | Gerd Hoffmann | outbuf[0] = 0xf0; |
813 | 51ad87c9 | Gerd Hoffmann | outbuf[1] = 0; |
814 | 51ad87c9 | Gerd Hoffmann | outbuf[2] = req->dev->sense.key;
|
815 | 51ad87c9 | Gerd Hoffmann | scsi_dev_clear_sense(req->dev); |
816 | 51ad87c9 | Gerd Hoffmann | break;
|
817 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
818 | 0b06c059 | Gerd Hoffmann | buflen = scsi_disk_emulate_inquiry(req, outbuf); |
819 | 0b06c059 | Gerd Hoffmann | if (buflen < 0) |
820 | 0b06c059 | Gerd Hoffmann | goto illegal_request;
|
821 | 0b06c059 | Gerd Hoffmann | break;
|
822 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
823 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
824 | ebddfcbe | Gerd Hoffmann | buflen = scsi_disk_emulate_mode_sense(req, outbuf); |
825 | ebddfcbe | Gerd Hoffmann | if (buflen < 0) |
826 | ebddfcbe | Gerd Hoffmann | goto illegal_request;
|
827 | ebddfcbe | Gerd Hoffmann | break;
|
828 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
829 | 02880f43 | Gerd Hoffmann | buflen = scsi_disk_emulate_read_toc(req, outbuf); |
830 | 02880f43 | Gerd Hoffmann | if (buflen < 0) |
831 | 02880f43 | Gerd Hoffmann | goto illegal_request;
|
832 | 02880f43 | Gerd Hoffmann | break;
|
833 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
834 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
835 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
836 | 3d53ba18 | Gerd Hoffmann | break;
|
837 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
838 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
839 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
840 | 3d53ba18 | Gerd Hoffmann | break;
|
841 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
842 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 1) |
843 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
844 | 3d53ba18 | Gerd Hoffmann | break;
|
845 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
846 | 3d53ba18 | Gerd Hoffmann | if (req->cmd.buf[1] & 3) |
847 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
848 | 3d53ba18 | Gerd Hoffmann | break;
|
849 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
850 | 428c149b | Christoph Hellwig | if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM && (req->cmd.buf[4] & 2)) { |
851 | 8d3628ff | Gerd Hoffmann | /* load/eject medium */
|
852 | 428c149b | Christoph Hellwig | bdrv_eject(s->bs, !(req->cmd.buf[4] & 1)); |
853 | 8d3628ff | Gerd Hoffmann | } |
854 | 8d3628ff | Gerd Hoffmann | break;
|
855 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
856 | 428c149b | Christoph Hellwig | bdrv_set_locked(s->bs, req->cmd.buf[4] & 1); |
857 | c68b9f34 | Gerd Hoffmann | break;
|
858 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
859 | e7e25e32 | Gerd Hoffmann | /* The normal LEN field for this command is zero. */
|
860 | e7e25e32 | Gerd Hoffmann | memset(outbuf, 0, 8); |
861 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
862 | e7e25e32 | Gerd Hoffmann | if (!nb_sectors)
|
863 | e7e25e32 | Gerd Hoffmann | goto not_ready;
|
864 | e7e25e32 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
865 | e7e25e32 | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
866 | e7e25e32 | Gerd Hoffmann | nb_sectors--; |
867 | e7e25e32 | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
868 | e7e25e32 | Gerd Hoffmann | s->max_lba = nb_sectors; |
869 | e7e25e32 | Gerd Hoffmann | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
870 | e7e25e32 | Gerd Hoffmann | if (nb_sectors > UINT32_MAX)
|
871 | e7e25e32 | Gerd Hoffmann | nb_sectors = UINT32_MAX; |
872 | e7e25e32 | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 24) & 0xff; |
873 | e7e25e32 | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 16) & 0xff; |
874 | e7e25e32 | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 8) & 0xff; |
875 | e7e25e32 | Gerd Hoffmann | outbuf[3] = nb_sectors & 0xff; |
876 | e7e25e32 | Gerd Hoffmann | outbuf[4] = 0; |
877 | e7e25e32 | Gerd Hoffmann | outbuf[5] = 0; |
878 | e7e25e32 | Gerd Hoffmann | outbuf[6] = s->cluster_size * 2; |
879 | e7e25e32 | Gerd Hoffmann | outbuf[7] = 0; |
880 | e7e25e32 | Gerd Hoffmann | buflen = 8;
|
881 | e7e25e32 | Gerd Hoffmann | break;
|
882 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
883 | 428c149b | Christoph Hellwig | bdrv_flush(s->bs); |
884 | fc903943 | Gerd Hoffmann | break;
|
885 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
886 | 38215553 | Gerd Hoffmann | memset(outbuf, 0, 8); |
887 | 38215553 | Gerd Hoffmann | /* ??? This should probably return much more information. For now
|
888 | 38215553 | Gerd Hoffmann | just return the basic header indicating the CD-ROM profile. */
|
889 | 38215553 | Gerd Hoffmann | outbuf[7] = 8; // CD-ROM |
890 | 38215553 | Gerd Hoffmann | buflen = 8;
|
891 | 38215553 | Gerd Hoffmann | break;
|
892 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
893 | 5dd90e2a | Gerd Hoffmann | /* Service Action In subcommands. */
|
894 | 5dd90e2a | Gerd Hoffmann | if ((req->cmd.buf[1] & 31) == 0x10) { |
895 | 5dd90e2a | Gerd Hoffmann | DPRINTF("SAI READ CAPACITY(16)\n");
|
896 | 5dd90e2a | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
897 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
898 | 5dd90e2a | Gerd Hoffmann | if (!nb_sectors)
|
899 | 5dd90e2a | Gerd Hoffmann | goto not_ready;
|
900 | 5dd90e2a | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
901 | 5dd90e2a | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
902 | 5dd90e2a | Gerd Hoffmann | nb_sectors--; |
903 | 5dd90e2a | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
904 | 5dd90e2a | Gerd Hoffmann | s->max_lba = nb_sectors; |
905 | 5dd90e2a | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 56) & 0xff; |
906 | 5dd90e2a | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 48) & 0xff; |
907 | 5dd90e2a | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 40) & 0xff; |
908 | 5dd90e2a | Gerd Hoffmann | outbuf[3] = (nb_sectors >> 32) & 0xff; |
909 | 5dd90e2a | Gerd Hoffmann | outbuf[4] = (nb_sectors >> 24) & 0xff; |
910 | 5dd90e2a | Gerd Hoffmann | outbuf[5] = (nb_sectors >> 16) & 0xff; |
911 | 5dd90e2a | Gerd Hoffmann | outbuf[6] = (nb_sectors >> 8) & 0xff; |
912 | 5dd90e2a | Gerd Hoffmann | outbuf[7] = nb_sectors & 0xff; |
913 | 5dd90e2a | Gerd Hoffmann | outbuf[8] = 0; |
914 | 5dd90e2a | Gerd Hoffmann | outbuf[9] = 0; |
915 | 5dd90e2a | Gerd Hoffmann | outbuf[10] = s->cluster_size * 2; |
916 | 5dd90e2a | Gerd Hoffmann | outbuf[11] = 0; |
917 | ee3659e3 | Christoph Hellwig | outbuf[12] = 0; |
918 | ee3659e3 | Christoph Hellwig | outbuf[13] = get_physical_block_exp(&s->qdev.conf);
|
919 | 5dd90e2a | Gerd Hoffmann | /* Protection, exponent and lowest lba field left blank. */
|
920 | 5dd90e2a | Gerd Hoffmann | buflen = req->cmd.xfer; |
921 | 5dd90e2a | Gerd Hoffmann | break;
|
922 | 5dd90e2a | Gerd Hoffmann | } |
923 | 5dd90e2a | Gerd Hoffmann | DPRINTF("Unsupported Service Action In\n");
|
924 | 5dd90e2a | Gerd Hoffmann | goto illegal_request;
|
925 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
926 | 39ec9a50 | Gerd Hoffmann | if (req->cmd.xfer < 16) |
927 | 39ec9a50 | Gerd Hoffmann | goto illegal_request;
|
928 | 39ec9a50 | Gerd Hoffmann | memset(outbuf, 0, 16); |
929 | 39ec9a50 | Gerd Hoffmann | outbuf[3] = 8; |
930 | 39ec9a50 | Gerd Hoffmann | buflen = 16;
|
931 | 39ec9a50 | Gerd Hoffmann | break;
|
932 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
933 | 88f8a5ed | Gerd Hoffmann | break;
|
934 | ebef0bbb | Bernhard Kohl | case REZERO_UNIT:
|
935 | ebef0bbb | Bernhard Kohl | DPRINTF("Rezero Unit\n");
|
936 | ebef0bbb | Bernhard Kohl | if (!bdrv_is_inserted(s->bs)) {
|
937 | ebef0bbb | Bernhard Kohl | goto not_ready;
|
938 | ebef0bbb | Bernhard Kohl | } |
939 | ebef0bbb | Bernhard Kohl | break;
|
940 | aa5dbdc1 | Gerd Hoffmann | default:
|
941 | aa5dbdc1 | Gerd Hoffmann | goto illegal_request;
|
942 | aa5dbdc1 | Gerd Hoffmann | } |
943 | aa5dbdc1 | Gerd Hoffmann | scsi_req_set_status(req, GOOD, NO_SENSE); |
944 | aa5dbdc1 | Gerd Hoffmann | return buflen;
|
945 | aa5dbdc1 | Gerd Hoffmann | |
946 | aa5dbdc1 | Gerd Hoffmann | not_ready:
|
947 | 8af7a3ab | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, NOT_READY); |
948 | 8af7a3ab | Kevin Wolf | return -1; |
949 | aa5dbdc1 | Gerd Hoffmann | |
950 | aa5dbdc1 | Gerd Hoffmann | illegal_request:
|
951 | 8af7a3ab | Kevin Wolf | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
952 | 8af7a3ab | Kevin Wolf | return -1; |
953 | aa5dbdc1 | Gerd Hoffmann | } |
954 | aa5dbdc1 | Gerd Hoffmann | |
955 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
956 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
957 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
958 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
959 | 2e5d83bb | pbrook | |
960 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
961 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
962 | 2e5d83bb | pbrook | { |
963 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
964 | 86106e59 | aliguori | uint64_t lba; |
965 | 2e5d83bb | pbrook | uint32_t len; |
966 | 2e5d83bb | pbrook | int cmdlen;
|
967 | 2e5d83bb | pbrook | int is_write;
|
968 | a917d384 | pbrook | uint8_t command; |
969 | a917d384 | pbrook | uint8_t *outbuf; |
970 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r; |
971 | aa5dbdc1 | Gerd Hoffmann | int rc;
|
972 | a917d384 | pbrook | |
973 | a917d384 | pbrook | command = buf[0];
|
974 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
975 | a917d384 | pbrook | if (r) {
|
976 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
977 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
978 | a917d384 | pbrook | } |
979 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
980 | a917d384 | pbrook | single lun, so this should not matter. */
|
981 | 72aef731 | Christoph Hellwig | r = scsi_new_request(s, tag, lun); |
982 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
983 | 2e5d83bb | pbrook | is_write = 0;
|
984 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
985 | a917d384 | pbrook | switch (command >> 5) { |
986 | 2e5d83bb | pbrook | case 0: |
987 | 86106e59 | aliguori | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
988 | 86106e59 | aliguori | (((uint64_t) buf[1] & 0x1f) << 16); |
989 | 2e5d83bb | pbrook | len = buf[4];
|
990 | 2e5d83bb | pbrook | cmdlen = 6;
|
991 | 2e5d83bb | pbrook | break;
|
992 | 2e5d83bb | pbrook | case 1: |
993 | 2e5d83bb | pbrook | case 2: |
994 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
995 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
996 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
997 | 2e5d83bb | pbrook | cmdlen = 10;
|
998 | 2e5d83bb | pbrook | break;
|
999 | 2e5d83bb | pbrook | case 4: |
1000 | 86106e59 | aliguori | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
1001 | 86106e59 | aliguori | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
1002 | 86106e59 | aliguori | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
1003 | 86106e59 | aliguori | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
1004 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
1005 | 2e5d83bb | pbrook | cmdlen = 16;
|
1006 | 2e5d83bb | pbrook | break;
|
1007 | 2e5d83bb | pbrook | case 5: |
1008 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
1009 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
1010 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
1011 | 2e5d83bb | pbrook | cmdlen = 12;
|
1012 | 2e5d83bb | pbrook | break;
|
1013 | 2e5d83bb | pbrook | default:
|
1014 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
1015 | 2e5d83bb | pbrook | goto fail;
|
1016 | 2e5d83bb | pbrook | } |
1017 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
1018 | 2e5d83bb | pbrook | { |
1019 | 2e5d83bb | pbrook | int i;
|
1020 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
1021 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
1022 | 2e5d83bb | pbrook | } |
1023 | 2e5d83bb | pbrook | printf("\n");
|
1024 | 2e5d83bb | pbrook | } |
1025 | 2e5d83bb | pbrook | #endif
|
1026 | aa5dbdc1 | Gerd Hoffmann | |
1027 | aa5dbdc1 | Gerd Hoffmann | if (scsi_req_parse(&r->req, buf) != 0) { |
1028 | aa5dbdc1 | Gerd Hoffmann | BADF("Unsupported command length, command %x\n", command);
|
1029 | aa5dbdc1 | Gerd Hoffmann | goto fail;
|
1030 | aa5dbdc1 | Gerd Hoffmann | } |
1031 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.len == cmdlen); |
1032 | aa5dbdc1 | Gerd Hoffmann | assert(r->req.cmd.lba == lba); |
1033 | aa5dbdc1 | Gerd Hoffmann | |
1034 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
1035 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
1036 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
1037 | ebf46023 | Gerd Hoffmann | if (command != REQUEST_SENSE && command != INQUIRY)
|
1038 | 22864256 | blueswir1 | goto fail;
|
1039 | 2e5d83bb | pbrook | } |
1040 | a917d384 | pbrook | switch (command) {
|
1041 | ebf46023 | Gerd Hoffmann | case TEST_UNIT_READY:
|
1042 | 51ad87c9 | Gerd Hoffmann | case REQUEST_SENSE:
|
1043 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
1044 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
1045 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
1046 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
1047 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
1048 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
1049 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
1050 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
1051 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
1052 | e7e25e32 | Gerd Hoffmann | case READ_CAPACITY:
|
1053 | fc903943 | Gerd Hoffmann | case SYNCHRONIZE_CACHE:
|
1054 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
1055 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
1056 | 5dd90e2a | Gerd Hoffmann | case SERVICE_ACTION_IN:
|
1057 | 39ec9a50 | Gerd Hoffmann | case REPORT_LUNS:
|
1058 | 88f8a5ed | Gerd Hoffmann | case VERIFY:
|
1059 | ebef0bbb | Bernhard Kohl | case REZERO_UNIT:
|
1060 | 8af7a3ab | Kevin Wolf | rc = scsi_disk_emulate_command(r, outbuf); |
1061 | 8af7a3ab | Kevin Wolf | if (rc < 0) { |
1062 | 0b06c059 | Gerd Hoffmann | return 0; |
1063 | aa5dbdc1 | Gerd Hoffmann | } |
1064 | 8af7a3ab | Kevin Wolf | |
1065 | 8af7a3ab | Kevin Wolf | r->iov.iov_len = rc; |
1066 | 0b06c059 | Gerd Hoffmann | break;
|
1067 | ebf46023 | Gerd Hoffmann | case READ_6:
|
1068 | ebf46023 | Gerd Hoffmann | case READ_10:
|
1069 | bd536cf3 | Gerd Hoffmann | case READ_12:
|
1070 | bd536cf3 | Gerd Hoffmann | case READ_16:
|
1071 | 0bf9e31a | Blue Swirl | DPRINTF("Read (sector %" PRId64 ", count %d)\n", lba, len); |
1072 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
1073 | 274fb0e1 | aliguori | goto illegal_lba;
|
1074 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
1075 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1076 | 2e5d83bb | pbrook | break;
|
1077 | ebf46023 | Gerd Hoffmann | case WRITE_6:
|
1078 | ebf46023 | Gerd Hoffmann | case WRITE_10:
|
1079 | bd536cf3 | Gerd Hoffmann | case WRITE_12:
|
1080 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
1081 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY:
|
1082 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_12:
|
1083 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_16:
|
1084 | ebef0bbb | Bernhard Kohl | DPRINTF("Write %s(sector %" PRId64 ", count %d)\n", |
1085 | ebef0bbb | Bernhard Kohl | (command & 0xe) == 0xe ? "And Verify " : "", lba, len); |
1086 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
1087 | 274fb0e1 | aliguori | goto illegal_lba;
|
1088 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
1089 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1090 | 2e5d83bb | pbrook | is_write = 1;
|
1091 | 2e5d83bb | pbrook | break;
|
1092 | ebef0bbb | Bernhard Kohl | case MODE_SELECT:
|
1093 | ebef0bbb | Bernhard Kohl | DPRINTF("Mode Select(6) (len %d)\n", len);
|
1094 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1095 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1096 | ebef0bbb | Bernhard Kohl | if (len > 12) { |
1097 | ebef0bbb | Bernhard Kohl | goto fail;
|
1098 | ebef0bbb | Bernhard Kohl | } |
1099 | ebef0bbb | Bernhard Kohl | break;
|
1100 | ebef0bbb | Bernhard Kohl | case MODE_SELECT_10:
|
1101 | ebef0bbb | Bernhard Kohl | DPRINTF("Mode Select(10) (len %d)\n", len);
|
1102 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1103 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1104 | ebef0bbb | Bernhard Kohl | if (len > 16) { |
1105 | ebef0bbb | Bernhard Kohl | goto fail;
|
1106 | ebef0bbb | Bernhard Kohl | } |
1107 | ebef0bbb | Bernhard Kohl | break;
|
1108 | ebef0bbb | Bernhard Kohl | case SEEK_6:
|
1109 | ebef0bbb | Bernhard Kohl | case SEEK_10:
|
1110 | ebef0bbb | Bernhard Kohl | DPRINTF("Seek(%d) (sector %" PRId64 ")\n", command == SEEK_6 ? 6 : 10, lba); |
1111 | ebef0bbb | Bernhard Kohl | if (lba > s->max_lba) {
|
1112 | ebef0bbb | Bernhard Kohl | goto illegal_lba;
|
1113 | ebef0bbb | Bernhard Kohl | } |
1114 | ebef0bbb | Bernhard Kohl | break;
|
1115 | 2e5d83bb | pbrook | default:
|
1116 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
1117 | 2e5d83bb | pbrook | fail:
|
1118 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); |
1119 | 2e5d83bb | pbrook | return 0; |
1120 | 274fb0e1 | aliguori | illegal_lba:
|
1121 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); |
1122 | 274fb0e1 | aliguori | return 0; |
1123 | 2e5d83bb | pbrook | } |
1124 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
1125 | 0d65e1f8 | Gerd Hoffmann | scsi_command_complete(r, GOOD, NO_SENSE); |
1126 | a917d384 | pbrook | } |
1127 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
1128 | a917d384 | pbrook | if (is_write) {
|
1129 | a917d384 | pbrook | return -len;
|
1130 | a917d384 | pbrook | } else {
|
1131 | a917d384 | pbrook | if (!r->sector_count)
|
1132 | a917d384 | pbrook | r->sector_count = -1;
|
1133 | a917d384 | pbrook | return len;
|
1134 | 2e5d83bb | pbrook | } |
1135 | 2e5d83bb | pbrook | } |
1136 | 2e5d83bb | pbrook | |
1137 | e9447f35 | Jan Kiszka | static void scsi_disk_purge_requests(SCSIDiskState *s) |
1138 | 56a14938 | Gerd Hoffmann | { |
1139 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
1140 | 56a14938 | Gerd Hoffmann | |
1141 | 9af99d98 | Gerd Hoffmann | while (!QTAILQ_EMPTY(&s->qdev.requests)) {
|
1142 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, QTAILQ_FIRST(&s->qdev.requests)); |
1143 | e9447f35 | Jan Kiszka | if (r->req.aiocb) {
|
1144 | e9447f35 | Jan Kiszka | bdrv_aio_cancel(r->req.aiocb); |
1145 | e9447f35 | Jan Kiszka | } |
1146 | 9af99d98 | Gerd Hoffmann | scsi_remove_request(r); |
1147 | 9af99d98 | Gerd Hoffmann | } |
1148 | e9447f35 | Jan Kiszka | } |
1149 | e9447f35 | Jan Kiszka | |
1150 | e9447f35 | Jan Kiszka | static void scsi_disk_reset(DeviceState *dev) |
1151 | e9447f35 | Jan Kiszka | { |
1152 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); |
1153 | e9447f35 | Jan Kiszka | uint64_t nb_sectors; |
1154 | e9447f35 | Jan Kiszka | |
1155 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1156 | e9447f35 | Jan Kiszka | |
1157 | e9447f35 | Jan Kiszka | bdrv_get_geometry(s->bs, &nb_sectors); |
1158 | e9447f35 | Jan Kiszka | nb_sectors /= s->cluster_size; |
1159 | e9447f35 | Jan Kiszka | if (nb_sectors) {
|
1160 | e9447f35 | Jan Kiszka | nb_sectors--; |
1161 | e9447f35 | Jan Kiszka | } |
1162 | e9447f35 | Jan Kiszka | s->max_lba = nb_sectors; |
1163 | e9447f35 | Jan Kiszka | } |
1164 | e9447f35 | Jan Kiszka | |
1165 | e9447f35 | Jan Kiszka | static void scsi_destroy(SCSIDevice *dev) |
1166 | e9447f35 | Jan Kiszka | { |
1167 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1168 | e9447f35 | Jan Kiszka | |
1169 | e9447f35 | Jan Kiszka | scsi_disk_purge_requests(s); |
1170 | f8b6cc00 | Markus Armbruster | blockdev_mark_auto_del(s->qdev.conf.bs); |
1171 | 56a14938 | Gerd Hoffmann | } |
1172 | 56a14938 | Gerd Hoffmann | |
1173 | d52affa7 | Gerd Hoffmann | static int scsi_disk_initfn(SCSIDevice *dev) |
1174 | 2e5d83bb | pbrook | { |
1175 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1176 | 7d0d6950 | Markus Armbruster | int is_cd;
|
1177 | f8b6cc00 | Markus Armbruster | DriveInfo *dinfo; |
1178 | 2e5d83bb | pbrook | |
1179 | f8b6cc00 | Markus Armbruster | if (!s->qdev.conf.bs) {
|
1180 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: drive property not set");
|
1181 | d52affa7 | Gerd Hoffmann | return -1; |
1182 | d52affa7 | Gerd Hoffmann | } |
1183 | f8b6cc00 | Markus Armbruster | s->bs = s->qdev.conf.bs; |
1184 | 7d0d6950 | Markus Armbruster | is_cd = bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM; |
1185 | d52affa7 | Gerd Hoffmann | |
1186 | 98f28ad7 | Markus Armbruster | if (!is_cd && !bdrv_is_inserted(s->bs)) {
|
1187 | 98f28ad7 | Markus Armbruster | error_report("Device needs media, but drive is empty");
|
1188 | 98f28ad7 | Markus Armbruster | return -1; |
1189 | 98f28ad7 | Markus Armbruster | } |
1190 | 98f28ad7 | Markus Armbruster | |
1191 | a0fef654 | Markus Armbruster | if (!s->serial) {
|
1192 | f8b6cc00 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
|
1193 | f8b6cc00 | Markus Armbruster | dinfo = drive_get_by_blockdev(s->bs); |
1194 | f8b6cc00 | Markus Armbruster | s->serial = qemu_strdup(*dinfo->serial ? dinfo->serial : "0");
|
1195 | a0fef654 | Markus Armbruster | } |
1196 | a0fef654 | Markus Armbruster | |
1197 | 552fee93 | Markus Armbruster | if (!s->version) {
|
1198 | 552fee93 | Markus Armbruster | s->version = qemu_strdup(QEMU_VERSION); |
1199 | 552fee93 | Markus Armbruster | } |
1200 | 552fee93 | Markus Armbruster | |
1201 | 32bb404a | Markus Armbruster | if (bdrv_is_sg(s->bs)) {
|
1202 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: unwanted /dev/sg*");
|
1203 | 32bb404a | Markus Armbruster | return -1; |
1204 | 32bb404a | Markus Armbruster | } |
1205 | 32bb404a | Markus Armbruster | |
1206 | 7d0d6950 | Markus Armbruster | if (is_cd) {
|
1207 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = 2048;
|
1208 | 2e5d83bb | pbrook | } else {
|
1209 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
1210 | 2e5d83bb | pbrook | } |
1211 | 8cfacf07 | Christoph Hellwig | s->cluster_size = s->qdev.blocksize / 512;
|
1212 | 73fdb1e1 | Christoph Hellwig | s->bs->buffer_alignment = s->qdev.blocksize; |
1213 | 8cfacf07 | Christoph Hellwig | |
1214 | 91376656 | Gerd Hoffmann | s->qdev.type = TYPE_DISK; |
1215 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
1216 | 7d0d6950 | Markus Armbruster | bdrv_set_removable(s->bs, is_cd); |
1217 | d52affa7 | Gerd Hoffmann | return 0; |
1218 | d52affa7 | Gerd Hoffmann | } |
1219 | d52affa7 | Gerd Hoffmann | |
1220 | d52affa7 | Gerd Hoffmann | static SCSIDeviceInfo scsi_disk_info = {
|
1221 | d52affa7 | Gerd Hoffmann | .qdev.name = "scsi-disk",
|
1222 | d52affa7 | Gerd Hoffmann | .qdev.desc = "virtual scsi disk or cdrom",
|
1223 | d52affa7 | Gerd Hoffmann | .qdev.size = sizeof(SCSIDiskState),
|
1224 | e9447f35 | Jan Kiszka | .qdev.reset = scsi_disk_reset, |
1225 | d52affa7 | Gerd Hoffmann | .init = scsi_disk_initfn, |
1226 | 56a14938 | Gerd Hoffmann | .destroy = scsi_destroy, |
1227 | d52affa7 | Gerd Hoffmann | .send_command = scsi_send_command, |
1228 | d52affa7 | Gerd Hoffmann | .read_data = scsi_read_data, |
1229 | d52affa7 | Gerd Hoffmann | .write_data = scsi_write_data, |
1230 | d52affa7 | Gerd Hoffmann | .cancel_io = scsi_cancel_io, |
1231 | d52affa7 | Gerd Hoffmann | .get_buf = scsi_get_buf, |
1232 | d52affa7 | Gerd Hoffmann | .qdev.props = (Property[]) { |
1233 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), |
1234 | 383b4d9b | Gerd Hoffmann | DEFINE_PROP_STRING("ver", SCSIDiskState, version),
|
1235 | a0fef654 | Markus Armbruster | DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
|
1236 | d52affa7 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
1237 | d52affa7 | Gerd Hoffmann | }, |
1238 | d52affa7 | Gerd Hoffmann | }; |
1239 | d52affa7 | Gerd Hoffmann | |
1240 | d52affa7 | Gerd Hoffmann | static void scsi_disk_register_devices(void) |
1241 | d52affa7 | Gerd Hoffmann | { |
1242 | d52affa7 | Gerd Hoffmann | scsi_qdev_register(&scsi_disk_info); |
1243 | 8ccc2ace | ths | } |
1244 | d52affa7 | Gerd Hoffmann | device_init(scsi_disk_register_devices) |