diff options
Diffstat (limited to 'hw/scsi-disk.c')
| -rw-r--r-- | hw/scsi-disk.c | 82 |
1 files changed, 39 insertions, 43 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 08633db..63aa8f1 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -49,10 +49,6 @@ do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) typedef struct SCSIDiskState SCSIDiskState; -typedef struct SCSISense { - uint8_t key; -} SCSISense; - typedef struct SCSIDiskReq { SCSIRequest req; /* ??? We should probably keep track of whether the data transfer is @@ -111,24 +107,19 @@ static void scsi_disk_clear_sense(SCSIDiskState *s) memset(&s->sense, 0, sizeof(s->sense)); } -static void scsi_disk_set_sense(SCSIDiskState *s, uint8_t key) -{ - s->sense.key = key; -} - -static void scsi_req_set_status(SCSIDiskReq *r, int status, int sense_code) +static void scsi_req_set_status(SCSIDiskReq *r, int status, SCSISense sense) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); r->req.status = status; - scsi_disk_set_sense(s, sense_code); + s->sense = sense; } /* Helper function for command completion. */ -static void scsi_command_complete(SCSIDiskReq *r, int status, int sense) +static void scsi_command_complete(SCSIDiskReq *r, int status, SCSISense sense) { - DPRINTF("Command complete tag=0x%x status=%d sense=%d\n", - r->req.tag, status, sense); + DPRINTF("Command complete tag=0x%x status=%d sense=%d/%d/%d\n", + r->req.tag, status, sense.key, sense.asc, sense.ascq); scsi_req_set_status(r, status, sense); scsi_req_complete(&r->req); } @@ -182,7 +173,7 @@ static void scsi_read_data(SCSIRequest *req) } DPRINTF("Read sector_count=%d\n", r->sector_count); if (r->sector_count == 0) { - scsi_command_complete(r, GOOD, NO_SENSE); + scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE)); return; } @@ -225,8 +216,13 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) if (type == SCSI_REQ_STATUS_RETRY_READ) { scsi_req_data(&r->req, 0); } - scsi_command_complete(r, CHECK_CONDITION, - HARDWARE_ERROR); + if (error == ENOMEM) { + scsi_command_complete(r, CHECK_CONDITION, + SENSE_CODE(TARGET_FAILURE)); + } else { + scsi_command_complete(r, CHECK_CONDITION, + SENSE_CODE(IO_ERROR)); + } bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); } @@ -251,7 +247,7 @@ static void scsi_write_complete(void * opaque, int ret) r->sector += n; r->sector_count -= n; if (r->sector_count == 0) { - scsi_command_complete(r, GOOD, NO_SENSE); + scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE)); } else { len = r->sector_count * 512; if (len > SCSI_DMA_BUF_SIZE) { @@ -278,7 +274,7 @@ static int scsi_write_data(SCSIRequest *req) r->req.aiocb = bdrv_aio_writev(s->bs, r->sector, &r->qiov, n, scsi_write_complete, r); if (r->req.aiocb == NULL) { - scsi_write_complete(r, -EIO); + scsi_write_complete(r, -ENOMEM); } } else { /* Invoke completion routine to fetch data from host. */ @@ -316,7 +312,7 @@ static void scsi_dma_restart_bh(void *opaque) case SCSI_REQ_STATUS_RETRY_FLUSH: ret = scsi_disk_emulate_command(r, r->iov.iov_base); if (ret == 0) { - scsi_command_complete(r, GOOD, NO_SENSE); + scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE)); } } } @@ -815,19 +811,8 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf) case REQUEST_SENSE: if (req->cmd.xfer < 4) goto illegal_request; - memset(outbuf, 0, 4); - buflen = 4; - if (s->sense.key == NOT_READY && req->cmd.xfer >= 18) { - memset(outbuf, 0, 18); - buflen = 18; - outbuf[7] = 10; - /* asc 0x3a, ascq 0: Medium not present */ - outbuf[12] = 0x3a; - outbuf[13] = 0; - } - outbuf[0] = 0xf0; - outbuf[1] = 0; - outbuf[2] = s->sense.key; + buflen = scsi_build_sense(s->sense, outbuf, req->cmd.xfer, + req->cmd.xfer > 13); scsi_disk_clear_sense(s); break; case INQUIRY: @@ -965,17 +950,22 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf) } break; default: - goto illegal_request; + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE)); + return -1; } - scsi_req_set_status(r, GOOD, NO_SENSE); + scsi_req_set_status(r, GOOD, SENSE_CODE(NO_SENSE)); return buflen; not_ready: - scsi_command_complete(r, CHECK_CONDITION, NOT_READY); + if (!bdrv_is_inserted(s->bs)) { + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(NO_MEDIUM)); + } else { + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(LUN_NOT_READY)); + } return -1; illegal_request: - scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_FIELD)); return -1; } @@ -1002,7 +992,8 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf) if (scsi_req_parse(&r->req, buf) != 0) { BADF("Unsupported command length, command %x\n", command); - goto fail; + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE)); + return 0; } #ifdef DEBUG_SCSI { @@ -1017,8 +1008,11 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf) if (req->lun || buf[1] >> 5) { /* Only LUN 0 supported. */ DPRINTF("Unimplemented LUN %d\n", req->lun ? req->lun : buf[1] >> 5); - if (command != REQUEST_SENSE && command != INQUIRY) - goto fail; + if (command != REQUEST_SENSE && command != INQUIRY) { + scsi_command_complete(r, CHECK_CONDITION, + SENSE_CODE(LUN_NOT_SUPPORTED)); + return 0; + } } switch (command) { case TEST_UNIT_READY: @@ -1126,15 +1120,17 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf) break; default: DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE)); + return 0; fail: - scsi_command_complete(r, CHECK_CONDITION, ILLEGAL_REQUEST); + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_FIELD)); return 0; illegal_lba: - scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR); + scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(LBA_OUT_OF_RANGE)); return 0; } if (r->sector_count == 0 && r->iov.iov_len == 0) { - scsi_command_complete(r, GOOD, NO_SENSE); + scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE)); } len = r->sector_count * 512 + r->iov.iov_len; if (is_write) { |
