Revision 314a3299 hw/scsi-disk.c
| b/hw/scsi-disk.c | ||
|---|---|---|
| 343 | 343 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 344 | 344 |
bool first; |
| 345 | 345 |
|
| 346 |
if (r->sector_count == (uint32_t)-1) {
|
|
| 347 |
DPRINTF("Read buf_len=%zd\n", r->iov.iov_len);
|
|
| 348 |
r->sector_count = 0; |
|
| 349 |
r->started = true; |
|
| 350 |
scsi_req_data(&r->req, r->iov.iov_len); |
|
| 351 |
return; |
|
| 352 |
} |
|
| 353 | 346 |
DPRINTF("Read sector_count=%d\n", r->sector_count);
|
| 354 | 347 |
if (r->sector_count == 0) {
|
| 355 | 348 |
/* This also clears the sense buffer for REQUEST SENSE. */ |
| ... | ... | |
| 1262 | 1255 |
return 0; |
| 1263 | 1256 |
} |
| 1264 | 1257 |
|
| 1258 |
static void scsi_disk_emulate_read_data(SCSIRequest *req) |
|
| 1259 |
{
|
|
| 1260 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
|
| 1261 |
int buflen = r->iov.iov_len; |
|
| 1262 |
|
|
| 1263 |
if (buflen) {
|
|
| 1264 |
DPRINTF("Read buf_len=%zd\n", buflen);
|
|
| 1265 |
r->iov.iov_len = 0; |
|
| 1266 |
r->started = true; |
|
| 1267 |
scsi_req_data(&r->req, buflen); |
|
| 1268 |
return; |
|
| 1269 |
} |
|
| 1270 |
|
|
| 1271 |
/* This also clears the sense buffer for REQUEST SENSE. */ |
|
| 1272 |
scsi_req_complete(&r->req, GOOD); |
|
| 1273 |
} |
|
| 1274 |
|
|
| 1275 |
static void scsi_disk_emulate_write_data(SCSIRequest *req) |
|
| 1276 |
{
|
|
| 1277 |
abort(); |
|
| 1278 |
} |
|
| 1279 |
|
|
| 1265 | 1280 |
static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) |
| 1266 | 1281 |
{
|
| 1267 | 1282 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| ... | ... | |
| 1532 | 1547 |
scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
| 1533 | 1548 |
return 0; |
| 1534 | 1549 |
} |
| 1535 |
assert(!r->req.aiocb && r->sector_count == 0);
|
|
| 1550 |
assert(!r->req.aiocb); |
|
| 1536 | 1551 |
r->iov.iov_len = MIN(buflen, req->cmd.xfer); |
| 1537 |
r->sector_count = -1; |
|
| 1538 | 1552 |
if (r->iov.iov_len == 0) {
|
| 1539 | 1553 |
scsi_req_complete(&r->req, GOOD); |
| 1540 | 1554 |
} |
| ... | ... | |
| 1785 | 1799 |
.size = sizeof(SCSIDiskReq), |
| 1786 | 1800 |
.free_req = scsi_free_request, |
| 1787 | 1801 |
.send_command = scsi_disk_emulate_command, |
| 1788 |
.read_data = scsi_read_data, |
|
| 1789 |
.write_data = scsi_write_data, |
|
| 1802 |
.read_data = scsi_disk_emulate_read_data,
|
|
| 1803 |
.write_data = scsi_disk_emulate_write_data,
|
|
| 1790 | 1804 |
.get_buf = scsi_get_buf, |
| 1791 | 1805 |
}; |
| 1792 | 1806 |
|
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