static void
do_dataout(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len, size_t opt_data_len)
{
char *opt_data = NULL;
raw_io_t *io;
if ((io = calloc(1, sizeof (*io))) == NULL) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((opt_data_len != 0) &&
((opt_data = malloc(opt_data_len)) == NULL)) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
io->r_cdb = cdb;
io->r_cdb_len = cdb_len;
io->r_data = opt_data;
io->r_data_len = opt_data_len;
if (trans_rqst_dataout(cmd, opt_data, opt_data_len, 0, io,
raw_free_io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
/*
* []----
* | raw_read_cmplt -- Once we have the data, need to send it along.
* []----
*/
static void
raw_read_cmplt(emul_handle_t id)
{
raw_io_t *io = (raw_io_t *)id;
int sense_len;
uint64_t err_blkno;
t10_cmd_t *cmd = io->r_cmd;
Boolean_t last;
if (io->r_aio.a_aio.aio_return != io->r_data_len) {
err_blkno = io->r_lba + ((io->r_offset + 511) / 512);
cmd->c_resid = (io->r_lba_cnt * 512) - io->r_offset;
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
sense_len = INFORMATION_SENSE_DESCR;
else
sense_len = 0;
spc_sense_create(cmd, KEY_HARDWARE_ERROR, sense_len);
spc_sense_info(cmd, err_blkno);
trans_send_complete(cmd, STATUS_CHECK);
raw_free_io(io);
return;
}
last = ((io->r_offset + io->r_data_len) < (io->r_lba_cnt * 512LL)) ?
False : True;
if (trans_send_datain(cmd, io->r_data, io->r_data_len,
io->r_offset, raw_free_io, last, io) == False) {
raw_free_io(io);
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
/*ARGSUSED*/
static void
raw_write_tape(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
size_t request_len;
size_t xfer;
raw_io_t *io;
request_len = (cdb[2] << 16) | (cdb[3] << 8) | cdb[4];
request_len *= (cdb[1] & 0x1) ? 512 : 1;
if ((io = calloc(1, sizeof (*io))) == NULL) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((io->r_data = malloc(request_len)) == NULL) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
io->r_data_len = request_len;
io->r_cmd = cmd;
xfer = min(T10_MAX_OUT(cmd), request_len);
(void) trans_rqst_dataout(cmd, io->r_data, xfer, io->r_offset, io,
raw_free_io);
}
static void
raw_msense(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
int len;
switch (cdb[0]) {
case SCMD_MODE_SENSE:
len = cdb[4];
break;
case SCMD_MODE_SENSE_G1:
len = (cdb[7] << 8) | cdb[8];
break;
}
if (((io = do_datain(cmd, cdb, CDB_GROUP0, len)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
static void
raw_service_actiong4(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
uint32_t len;
struct scsi_capacity_16 cap16;
raw_params_t *r;
if ((r = (raw_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
len = (cdb[10] << 24) | (cdb[11] << 16) | (cdb[12] << 8) | cdb[13];
if (((io = do_datain(cmd, cdb, CDB_GROUP4, len)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
bcopy(io->r_data, &cap16, sizeof (cap16));
/*
* Currently there's a bug in ZFS which doesn't report a capacity
* for any of the volumes. This means that when using ZFS the
* administrator must supply the device size.
*/
if (cap16.sc_capacity != 0)
r->r_size = cap16.sc_capacity;
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
static void
raw_inquiry(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
uint32_t len;
struct scsi_inquiry inq;
raw_params_t *r;
if ((r = (raw_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
len = (cdb[3] << 8) | cdb[4];
if (((io = do_datain(cmd, cdb, CDB_GROUP0, len)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((cdb[1] & 1) == 0) {
bcopy(io->r_data, &inq, sizeof (inq));
r->r_dtype = inq.inq_dtype;
}
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
static raw_io_t *
do_datain(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len, size_t data_len)
{
raw_io_t *io;
if ((io = calloc(1, sizeof (*io))) == NULL) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
return (NULL);
}
io->r_cdb = cdb;
io->r_cdb_len = cdb_len;
io->r_data_len = data_len;
if ((data_len != 0) && ((io->r_data = malloc(data_len)) == NULL)) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
free(io);
return (NULL);
}
(void) do_uscsi(cmd, io, data_len == 0 ? NoData : RawDataFromDevice);
return (io);
}
/*ARGSUSED*/
void
sbc_synccache(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
/*
* SBC-2 revision 16, section 5.18
* Reserve bit checks
*/
if ((cdb[1] & ~SBC_SYNC_CACHE_IMMED) || cdb[6] ||
SAM_CONTROL_BYTE_RESERVED(cdb[9])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
} else {
/*
* SBC-3, revision 16, section 5.18
* An IMMED bit set to one specifies that the device server
* shall return status as soon as the CDB has been validated.
*/
if (cdb[1] & SBC_SYNC_CACHE_IMMED) {
/*
* Immediately return a status of GOOD. If an error
* occurs with the fsync the next command will pick
* up an error.
*/
trans_send_complete(cmd, STATUS_GOOD);
if (fsync(cmd->c_lu->l_common->l_fd) == -1) {
cmd->c_lu->l_status = KEY_HARDWARE_ERROR;
cmd->c_lu->l_asc = 0x00;
cmd->c_lu->l_ascq = 0x00;
}
} else {
if (fsync(cmd->c_lu->l_common->l_fd) == -1) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
} else
trans_send_complete(cmd, STATUS_GOOD);
}
}
}
/*ARGSUSED*/
void
sbc_service_actiong4(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
switch (cdb[1] & SPC_GROUP4_SERVICE_ACTION_MASK) {
case SSVC_ACTION_READ_CAPACITY_G4:
sbc_read_capacity16(cmd, cdb, cdb_len);
break;
default:
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x20, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
break;
}
}
/*
* []------------------------------------------------------------------[]
* | SCSI Object-Based Storage Device Commands |
* | T10/1355-D |
* | The following functions implement the emulation of OSD type |
* | commands. |
* []------------------------------------------------------------------[]
*/
static void
osd_service_action(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
osd_generic_cdb_t *o;
uint16_t service_action;
/*
* debug only -- no need to drop core if someone doesn't play right.
*/
assert(cdb_len == sizeof (*o));
if (cdb_len != sizeof (*o)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, SPC_ASCQ_INVALID_CDB);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
o = (osd_generic_cdb_t *)cdb;
service_action = o->ocdb_basic.b_service_action[0] << 8 |
o->ocdb_basic.b_service_action[1];
queue_prt(mgmtq, Q_STE_NONIO,
"OSD%x LUN%d service=0x%x, options=0x%x, specific_opts=0x%x,"
" fmt=0x%x", cmd->c_lu->l_targ->s_targ_num,
cmd->c_lu->l_common->l_num, service_action, o->ocdb_options,
o->ocdb_specific_opts, o->ocdb_fmt);
switch (service_action) {
case OSD_APPEND:
case OSD_CREATE:
case OSD_CREATE_AND_WRITE:
case OSD_CREATE_COLLECTION:
case OSD_CREATE_PARTITION:
case OSD_FLUSH:
case OSD_FLUSH_COLLECTION:
case OSD_FLUSH_OSD:
case OSD_FLUSH_PARTITION:
case OSD_FORMAT_OSD:
case OSD_GET_ATTR:
case OSD_LIST:
osd_list(cmd, cdb, cdb_len);
break;
case OSD_LIST_COLLECTION:
case OSD_PERFORM_SCSI:
case OSD_TASK_MGMT:
default:
spc_unsupported(cmd, cdb, cdb_len);
break;
}
}
static void
raw_request_sense(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
if (((io = do_datain(cmd, cdb, CDB_GROUP0, cdb[4])) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
} else {
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
}
static int
do_uscsi(t10_cmd_t *cmd, raw_io_t *io, raw_direction_t dir)
{
struct uscsi_cmd u;
uchar_t sense_buf[128];
bzero(&u, sizeof (u));
u.uscsi_cdb = (caddr_t)io->r_cdb;
u.uscsi_cdblen = io->r_cdb_len;
u.uscsi_bufaddr = io->r_data;
u.uscsi_buflen = io->r_data_len;
u.uscsi_flags = ((dir == RawDataToDevice) ? USCSI_WRITE :
(dir == RawDataFromDevice) ? USCSI_READ : 0) | USCSI_RQENABLE;
u.uscsi_rqbuf = (char *)sense_buf;
u.uscsi_rqlen = sizeof (sense_buf);
if ((ioctl(cmd->c_lu->l_common->l_fd, USCSICMD, &u) == 0) &&
(u.uscsi_status == 0)) {
io->r_status = 0;
return (0);
}
queue_prt(mgmtq, Q_STE_ERRS,
"RAW%d LUN%d USCSICMD errno %d, cmd_status %d, rqstatus %d, "
"rqresid %d",
cmd->c_lu->l_targ->s_targ_num, cmd->c_lu->l_common->l_num, errno,
u.uscsi_status, u.uscsi_rqstatus, u.uscsi_rqresid);
if ((u.uscsi_rqlen - u.uscsi_rqresid) <
sizeof (struct scsi_extended_sense)) {
queue_prt(mgmtq, Q_STE_ERRS,
"RAW%x LUN%d -- No sense data, got=%d, needed=%d",
cmd->c_lu->l_targ->s_targ_num,
cmd->c_lu->l_common->l_num,
u.uscsi_rqlen - u.uscsi_rqresid,
sizeof (struct scsi_extended_sense));
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
io->r_status = STATUS_CHECK;
return (STATUS_CHECK);
} else {
spc_sense_raw(cmd, sense_buf, u.uscsi_rqlen - u.uscsi_rqresid);
io->r_status = u.uscsi_status;
return (u.uscsi_status);
}
}
/*ARGSUSED*/
static void
sbc_reserve(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
disk_params_t *p = (disk_params_t *)T10_PARAMS_AREA(cmd);
t10_lu_impl_t *lu;
if (p == NULL)
return;
if (cdb[1] & 0xe0 || SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((p->d_reserve_owner != NULL) &&
(p->d_reserve_owner != cmd->c_lu)) {
trans_send_complete(cmd, STATUS_RESERVATION_CONFLICT);
return;
} else if (p->d_reserve_owner == cmd->c_lu) {
/*
* According SPC-2 revision 20, section 7.21.2
* It shall be permissible for an initiator to
* reserve a logic unit that is currently reserved
* by that initiator
*/
trans_send_complete(cmd, STATUS_GOOD);
} else {
lu = avl_first(&cmd->c_lu->l_common->l_all_open);
do {
if (lu != cmd->c_lu)
lu->l_cmd = sbc_cmd_reserved;
lu = AVL_NEXT(&cmd->c_lu->l_common->l_all_open, lu);
} while (lu != NULL);
p->d_reserve_owner = cmd->c_lu;
trans_send_complete(cmd, STATUS_GOOD);
}
}
static void
raw_report_tpgs(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
uint32_t len;
len = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
if (((io = do_datain(cmd, cdb, CDB_GROUP5, len)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
static void
raw_read_limits(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
raw_io_t *io;
/*
* spec defines this command to return 6 bytes of data
*/
if (((io = do_datain(cmd, cdb, CDB_GROUP0, 6)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if (trans_send_datain(cmd, io->r_data, io->r_data_len, 0,
raw_free_io, True, io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
/*ARGSUSED*/
static void
raw_read_tape(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
size_t req_len;
size_t xfer;
off_t offset = 0;
raw_io_t *io;
Boolean_t last;
t10_cmd_t *c;
req_len = (cdb[2] << 16) | (cdb[3] << 8) | cdb[4];
if (cdb[1] & 0x1)
req_len *= 512;
if (((io = do_datain(cmd, cdb, CDB_GROUP0, req_len)) == NULL) ||
(io->r_status != STATUS_GOOD)) {
if (io != NULL)
raw_free_io(io);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
while (offset < io->r_data_len) {
xfer = min(T10_MAX_OUT(cmd), io->r_data_len - offset);
last = ((offset + xfer) >= io->r_data_len) ? True : False;
if (last == True)
c = cmd;
else
c = trans_cmd_dup(cmd);
if (trans_send_datain(c, io->r_data + offset,
xfer, offset, raw_free_io, last, io) == False) {
raw_free_io(io);
spc_sense_create(c, KEY_HARDWARE_ERROR, 0);
trans_send_complete(c, STATUS_CHECK);
return;
}
offset += xfer;
}
}
/*ARGSUSED*/
static void
sbc_release(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
disk_params_t *p = (disk_params_t *)T10_PARAMS_AREA(cmd);
t10_lu_impl_t *lu;
if (p == NULL)
return;
if (cdb[1] & 0xe0 || cdb[3] || cdb[4] ||
SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if (p->d_reserve_owner == NULL) {
/*
* If nobody is the owner this command is successful.
*/
trans_send_complete(cmd, STATUS_GOOD);
return;
}
/*
* At this point the only way to get in here is to be the owner
* of the reservation.
*/
lu = avl_first(&cmd->c_lu->l_common->l_all_open);
do {
lu->l_cmd = sbc_cmd;
lu = AVL_NEXT(&cmd->c_lu->l_common->l_all_open, lu);
} while (lu != NULL);
p->d_reserve_owner = NULL;
trans_send_complete(cmd, STATUS_GOOD);
}
/*ARGSUSED*/
void
sbc_write_data(t10_cmd_t *cmd, emul_handle_t id, size_t offset, char *data,
size_t data_len)
{
disk_io_t *io = (disk_io_t *)id;
disk_params_t *d;
if (cmd->c_lu->l_common->l_mmap == MAP_FAILED) {
trans_aiowrite(cmd, data, data_len, (io->da_lba * 512) +
(off_t)io->da_offset, (aio_result_t *)io);
} else {
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
if (d->d_fast_write == False) {
/*
* We only need to worry about sync'ing the blocks
* in the mmap case because if the fast cache isn't
* enabled for AIO the file will be opened with F_SYNC
* which performs the correct action.
*/
if (fsync(cmd->c_lu->l_common->l_fd) == -1) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
}
/*
* Since the data has already been transfered from the
* transport to the mmap area we just need to call
* the complete routine.
*/
sbc_write_cmplt(id);
}
}
/*ARGSUSED*/
static void
sbc_read_capacity16(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
uint64_t capacity,
lba;
int rep_size; /* response data size */
struct scsi_capacity_16 *cap16;
disk_params_t *d;
disk_io_t *io;
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
capacity = d->d_size;
/*
* READ_CAPACITY(16) command
*/
rep_size = cdb[10] << 24 | cdb[11] << 16 | cdb[12] << 8 | cdb[13];
if (rep_size == 0) {
/*
* A zero length field means we're done.
*/
trans_send_complete(cmd, STATUS_GOOD);
return;
}
rep_size = MIN(rep_size, sizeof (*cap16));
/*
* Reserve bit checks.
*/
if ((cdb[1] & ~SPC_GROUP4_SERVICE_ACTION_MASK) ||
(cdb[14] & ~SBC_CAPACITY_PMI) ||
SAM_CONTROL_BYTE_RESERVED(cdb[15])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
lba = (uint64_t)cdb[2] << 56 | (uint64_t)cdb[3] << 48 |
(uint64_t)cdb[4] << 40 | (uint64_t)cdb[5] << 32 |
(uint64_t)cdb[6] << 24 | (uint64_t)cdb[7] << 16 |
(uint64_t)cdb[8] << 8 | (uint64_t)cdb[9];
io = sbc_io_alloc(cmd);
/*
* We'll malloc enough space for the structure so that we can
* set the values as we place. However, we'll set the transfer
* length to the minimum of the requested size and our structure.
* This is per SBC-2 revision 16, section 5.11.1 regarding
* ALLOCATION LENGTH.
*/
if ((cap16 = (struct scsi_capacity_16 *)calloc(1, sizeof (*cap16))) ==
NULL) {
trans_send_complete(cmd, STATUS_BUSY);
return;
}
io->da_data = (char *)cap16;
io->da_data_len = sizeof (*cap16);
io->da_data_alloc = True;
io->da_clear_overlap = False;
if (cdb[14] & SBC_CAPACITY_PMI) {
if (lba >= capacity)
cap16->sc_capacity = htonll(0xffffffffffffffffULL);
else
cap16->sc_capacity = htonll(capacity - 1);
} else {
cap16->sc_capacity = htonll(capacity - 1);
}
cap16->sc_lbasize = htonl(d->d_bytes_sect);
if (trans_send_datain(cmd, io->da_data, io->da_data_len, 0,
sbc_io_free, True, io) == False) {
trans_send_complete(cmd, STATUS_BUSY);
}
}
/*ARGSUSED*/
static void
raw_write(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
/*LINTED*/
union scsi_cdb *cdbp = (union scsi_cdb *)cdb;
off_t addr;
uint64_t err_blkno;
uint32_t cnt;
uchar_t addl_sense_len;
char debug[80]; /* debug */
raw_params_t *r;
raw_io_t *io;
size_t max_out;
if ((r = (raw_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
if (r->r_dtype == DTYPE_SEQUENTIAL) {
raw_write_tape(cmd, cdb, cdb_len);
return;
}
switch (cdb[0]) {
case SCMD_WRITE:
/*
* SBC-2 revision 16, section 5.24
* Reserve bit checks.
*/
if ((cdb[1] & 0xe0) || (cdb[5] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (off_t)cdbp->g0_addr2 << 16 |
(off_t)cdbp->g0_addr1 << 8 | (off_t)cdbp->g0_addr0;
cnt = cdbp->g0_count0;
/*
* SBC-2 Revision 16/Section 5.24 WRITE(6)
* A TRANSFER LENGHT of 0 indicates that 256 logical blocks
* shall be written.
*/
if (cnt == 0)
cnt = 256;
break;
case SCMD_WRITE_G1:
/*
* SBC-2 revision 16, section 5.25
* Reserve bit checks.
*/
if ((cdb[1] & 0x6) || cdb[6] || (cdb[9] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (off_t)cdbp->g1_addr3 << 24 |
(off_t)cdbp->g1_addr2 << 16 |
(off_t)cdbp->g1_addr1 << 8 |
(off_t)cdbp->g1_addr0;
cnt = cdbp->g1_count1 << 8 | cdbp->g1_count0;
break;
case SCMD_WRITE_G4:
/*
* SBC-2 revision 16, section 5.27
* Reserve bit checks.
*/
if ((cdb[1] & 0x6) || cdb[14] || (cdb[15] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (off_t)(cdbp->g4_addr3 & 0xff) << 56 |
(off_t)(cdbp->g4_addr2 & 0xff) << 48 |
(off_t)(cdbp->g4_addr1 & 0xff) << 40 |
(off_t)(cdbp->g4_addr0 & 0xff) << 32 |
(off_t)(cdbp->g4_addtl_cdb_data3 & 0xff) << 24 |
(off_t)(cdbp->g4_addtl_cdb_data2 & 0xff) << 16 |
(off_t)(cdbp->g4_addtl_cdb_data1 & 0xff) << 8 |
(off_t)(cdbp->g4_addtl_cdb_data0 & 0xff);
cnt = cdbp->g4_count3 << 24 | cdbp->g4_count2 << 16 |
cdbp->g4_count1 << 8 | cdbp->g4_count0;
break;
default:
queue_str(mgmtq, Q_STE_ERRS, msg_log,
"Unprocessed WRITE type");
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((addr < 0) || ((addr + cnt) > r->r_size)) {
/*
* request exceed the capacity of disk
* set error block number to capacity + 1
*/
err_blkno = r->r_size + 1;
/*
* XXX: What's SBC-2 say about ASC/ASCQ here. Solaris
* doesn't care about these values when key is set
* to KEY_ILLEGAL_REQUEST.
*/
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
addl_sense_len = INFORMATION_SENSE_DESCR;
else
addl_sense_len = 0;
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, addl_sense_len);
spc_sense_info(cmd, err_blkno);
spc_sense_ascq(cmd, 0x21, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
(void) snprintf(debug, sizeof (debug),
"RAW%d WRITE Illegal sector (0x%llx + 0x%x) > 0x%llx",
cmd->c_lu->l_common->l_num, addr, cnt, r->r_size);
queue_str(mgmtq, Q_STE_ERRS, msg_log, debug);
return;
}
if (cnt == 0) {
trans_send_complete(cmd, STATUS_GOOD);
return;
}
io = (raw_io_t *)cmd->c_emul_id;
if (io == NULL) {
if ((io = (raw_io_t *)calloc(1, sizeof (*io))) == NULL) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
io->r_lba = addr;
io->r_lba_cnt = cnt;
io->r_cmd = cmd;
io->r_aio.a_aio_cmplt = raw_write_cmplt;
io->r_aio.a_id = io;
/*
* Only update the statistics the first time through
* for this particular command. If the requested transfer
* is larger than the transport can handle this routine
* will be called many times.
*/
cmd->c_lu->l_cmds_write++;
cmd->c_lu->l_sects_write += cnt;
}
/*
* If a transport sets the maximum output value to zero we'll
* just request the entire amount. Otherwise, transfer no more
* than the maximum output or the reminder, whichever is less.
*/
max_out = cmd->c_lu->l_targ->s_maxout;
io->r_data_len = max_out ? MIN(max_out,
(cnt * 512) - io->r_offset) : (cnt * 512);
#ifdef FULL_DEBUG
(void) snprintf(debug, sizeof (debug),
"RAW%d blk 0x%llx, cnt %d, offset 0x%llx, size %d",
cmd->c_lu->l_common->l_num, addr, cnt, io->r_offset,
io->r_data_len);
queue_str(mgmtq, Q_STE_IO, msg_log, debug);
#endif
if ((io->r_data = (char *)malloc(io->r_data_len)) == NULL) {
/*
* NOTE: May need a different ASC code
*/
err_blkno = addr + ((io->r_offset + 511) / 512);
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
addl_sense_len = INFORMATION_SENSE_DESCR;
else
addl_sense_len = 0;
spc_sense_create(cmd, KEY_HARDWARE_ERROR, addl_sense_len);
spc_sense_info(cmd, err_blkno);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if (trans_rqst_dataout(cmd, io->r_data, io->r_data_len, io->r_offset,
io, raw_free_io) == False) {
spc_sense_create(cmd, KEY_HARDWARE_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
}
}
/*ARGSUSED*/
static void
raw_read(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
/*LINTED*/
union scsi_cdb *u = (union scsi_cdb *)cdb;
diskaddr_t addr;
off_t offset = 0;
uint32_t cnt;
uint32_t min;
raw_io_t *io;
uint64_t err_blkno;
int sense_len;
char debug[80];
raw_params_t *r;
uchar_t addl_sense_len;
t10_cmd_t *c;
if ((r = (raw_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
if (r->r_dtype == DTYPE_SEQUENTIAL) {
raw_read_tape(cmd, cdb, cdb_len);
return;
}
switch (u->scc_cmd) {
case SCMD_READ:
/*
* SBC-2 Revision 16, section 5.5
* Reserve bit checks
*/
if ((cdb[1] & 0xe0) || (cdb[5] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG0ADDR(u);
cnt = GETG0COUNT(u);
/*
* SBC-2 Revision 16
* Section: 5.5 READ(6) command
* A TRANSFER LENGTH field set to zero specifies
* that 256 logical blocks shall be read.
*/
if (cnt == 0)
cnt = 256;
break;
case SCMD_READ_G1:
/*
* SBC-2 Revision 16, section 5.6
* Reserve bit checks.
*/
if ((cdb[1] & 6) || cdb[6] || (cdb[9] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG1ADDR(u);
cnt = GETG1COUNT(u);
break;
case SCMD_READ_G4:
/*
* SBC-2 Revision 16, section 5.8
* Reserve bit checks
*/
if ((cdb[1] & 0x6) || (cdb[10] & 6) || cdb[14] ||
(cdb[15] & 0x38)) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, 0x24, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = GETG4LONGADDR(u);
cnt = GETG4COUNT(u);
break;
default:
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((addr + cnt) > r->r_size) {
/*
* request exceed the capacity of disk
* set error block number to capacity + 1
*/
err_blkno = r->r_size + 1;
/*
* XXX: What's SBC-2 say about ASC/ASCQ here. Solaris
* doesn't care about these values when key is set
* to KEY_ILLEGAL_REQUEST.
*/
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
addl_sense_len = INFORMATION_SENSE_DESCR;
else
addl_sense_len = 0;
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, addl_sense_len);
spc_sense_info(cmd, err_blkno);
spc_sense_ascq(cmd, 0x21, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
(void) snprintf(debug, sizeof (debug),
"RAW%d READ Illegal sector (0x%llx + 0x%x) > 0x%llx",
cmd->c_lu->l_common->l_num, addr, cnt, r->r_size);
queue_str(mgmtq, Q_STE_ERRS, msg_log, debug);
return;
}
cmd->c_lu->l_cmds_read++;
cmd->c_lu->l_sects_read += cnt;
if (cnt == 0) {
trans_send_complete(cmd, STATUS_GOOD);
return;
}
do {
min = MIN((cnt * 512) - offset, T10_MAX_OUT(cmd));
if ((offset + min) < (cnt * 512LL))
c = trans_cmd_dup(cmd);
else
c = cmd;
if ((io = (raw_io_t *)calloc(1, sizeof (*io))) == NULL) {
/*
* We're pretty much dead in the water. If we can't
* allocate memory. It's unlikey we'll be able to
* allocate a sense buffer or queue the command
* up to be sent back to the transport for delivery.
*/
spc_sense_create(c, KEY_HARDWARE_ERROR, 0);
trans_send_complete(c, STATUS_CHECK);
return;
}
io->r_cmd = c;
io->r_lba = addr;
io->r_lba_cnt = cnt;
io->r_offset = offset;
io->r_data_len = min;
io->r_aio.a_aio_cmplt = raw_read_cmplt;
io->r_aio.a_id = io;
#ifdef FULL_DEBUG
(void) snprintf(debug, sizeof (debug),
"RAW%d blk 0x%llx, cnt %d, offset 0x%llx, size %d",
c->c_lu->l_common->l_num, addr, cnt, io->r_offset, min);
queue_str(mgmtq, Q_STE_IO, msg_log, debug);
#endif
if ((io->r_data = (char *)malloc(min)) == NULL) {
err_blkno = addr + ((offset + 511) / 512);
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
sense_len = INFORMATION_SENSE_DESCR;
else
sense_len = 0;
spc_sense_create(c, KEY_HARDWARE_ERROR,
sense_len);
spc_sense_info(c, err_blkno);
trans_send_complete(c, STATUS_CHECK);
return;
}
trans_aioread(c, io->r_data, min, (addr * 512LL) +
(off_t)io->r_offset, &io->r_aio);
offset += min;
} while (offset < (off_t)(cnt * 512));
}
/*ARGSUSED*/
static void
sbc_read(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
/*LINTED*/
union scsi_cdb *u = (union scsi_cdb *)cdb;
diskaddr_t addr;
off_t offset = 0;
uint32_t cnt,
min;
disk_io_t *io;
void *mmap_data = T10_MMAP_AREA(cmd);
uint64_t err_blkno;
disk_params_t *d;
uchar_t addl_sense_len;
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
switch (u->scc_cmd) {
case SCMD_READ:
/*
* SBC-2 Revision 16, section 5.5
* Reserve bit checks
*/
if ((cdb[1] & 0xe0) || SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG0ADDR(u);
cnt = GETG0COUNT(u);
/*
* SBC-2 Revision 16
* Section: 5.5 READ(6) command
* A TRANSFER LENGTH field set to zero specifies
* that 256 logical blocks shall be read.
*/
if (cnt == 0)
cnt = 256;
break;
case SCMD_READ_G1:
/*
* SBC-2 Revision 16, section 5.6
* Reserve bit checks.
*/
if ((cdb[1] & 6) || cdb[6] ||
SAM_CONTROL_BYTE_RESERVED(cdb[9])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG1ADDR(u);
cnt = GETG1COUNT(u);
break;
case SCMD_READ_G4:
/*
* SBC-2 Revision 16, section 5.8
* Reserve bit checks
*/
if ((cdb[1] & 0x6) || cdb[14] ||
SAM_CONTROL_BYTE_RESERVED(cdb[15])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = GETG4LONGADDR(u);
cnt = GETG4COUNT(u);
break;
default:
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((addr + cnt) > d->d_size) {
if (addr > d->d_size)
err_blkno = addr;
else
err_blkno = d->d_size;
/*
* XXX: What's SBC-2 say about ASC/ASCQ here. Solaris
* doesn't care about these values when key is set
* to KEY_ILLEGAL_REQUEST.
*/
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
addl_sense_len = INFORMATION_SENSE_DESCR;
else
addl_sense_len = 0;
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, addl_sense_len);
spc_sense_info(cmd, err_blkno);
spc_sense_ascq(cmd, 0x21, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
queue_prt(mgmtq, Q_STE_ERRS,
"SBC%x LUN%d READ Illegal sector "
"(0x%llx + 0x%x) > 0x%ullx", cmd->c_lu->l_targ->s_targ_num,
cmd->c_lu->l_common->l_num, addr, cnt, d->d_size);
return;
}
cmd->c_lu->l_cmds_read++;
cmd->c_lu->l_sects_read += cnt;
if (cnt == 0) {
trans_send_complete(cmd, STATUS_GOOD);
return;
}
do {
io = sbc_io_alloc(cmd);
min = MIN((cnt * 512) - offset, T10_MAX_OUT(cmd));
io->da_lba = addr;
io->da_lba_cnt = cnt;
io->da_offset = offset;
io->da_data_len = min;
#ifdef FULL_DEBUG
queue_prt(mgmtq, Q_STE_IO,
"SBC%x LUN%d blk 0x%llx, cnt %d, offset 0x%llx, size %d",
cmd->c_lu->l_targ->s_targ_num, cmd->c_lu->l_common->l_num,
addr, cnt, io->da_offset, min);
#endif
if (mmap_data != MAP_FAILED) {
io->da_clear_overlap = True;
io->da_data_alloc = False;
io->da_aio.a_aio.aio_return = min;
io->da_data = (char *)mmap_data + (addr * 512LL) +
io->da_offset;
sbc_overlap_store(io);
sbc_read_cmplt((emul_handle_t)io);
} else {
if ((io->da_data = (char *)malloc(min)) == NULL) {
trans_send_complete(cmd, STATUS_BUSY);
return;
}
io->da_clear_overlap = False;
io->da_data_alloc = True;
io->da_aio.a_aio_cmplt = sbc_read_cmplt;
io->da_aio.a_id = io;
trans_aioread(cmd, io->da_data, min, (addr * 512LL) +
(off_t)io->da_offset, (aio_result_t *)io);
}
offset += min;
} while (offset < (off_t)(cnt * 512));
}
/*ARGSUSED*/
static void
sbc_write(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
union scsi_cdb *u;
diskaddr_t addr;
uint64_t err_blkno;
uint32_t cnt;
uchar_t addl_sense_len;
disk_params_t *d;
disk_io_t *io;
size_t max_out;
void *mmap_area;
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
/*LINTED*/
u = (union scsi_cdb *)cdb;
switch (u->scc_cmd) {
case SCMD_WRITE:
/*
* SBC-2 revision 16, section 5.24
* Reserve bit checks.
*/
if ((cdb[1] & 0xe0) || SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG0ADDR(u);
cnt = GETG0COUNT(u);
/*
* SBC-2 Revision 16/Section 5.24 WRITE(6)
* A TRANSFER LENGHT of 0 indicates that 256 logical blocks
* shall be written.
*/
if (cnt == 0)
cnt = 256;
break;
case SCMD_WRITE_G1:
/*
* SBC-2 revision 16, section 5.25
* Reserve bit checks.
*/
if ((cdb[1] & 0x6) || cdb[6] ||
SAM_CONTROL_BYTE_RESERVED(cdb[9])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)(uint32_t)GETG1ADDR(u);
cnt = GETG1COUNT(u);
break;
case SCMD_WRITE_G4:
/*
* SBC-2 revision 16, section 5.27
* Reserve bit checks.
*/
if ((cdb[1] & 0x6) || cdb[14] ||
SAM_CONTROL_BYTE_RESERVED(cdb[15])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
addr = (diskaddr_t)GETG4LONGADDR(u);
cnt = GETG4COUNT(u);
break;
default:
queue_prt(mgmtq, Q_STE_ERRS, "Unprocessed WRITE type");
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((addr + cnt) > d->d_size) {
if (addr > d->d_size)
err_blkno = addr;
else
err_blkno = d->d_size;
/*
* XXX: What's SBC-2 say about ASC/ASCQ here. Solaris
* doesn't care about these values when key is set
* to KEY_ILLEGAL_REQUEST.
*/
if (err_blkno > FIXED_SENSE_ADDL_INFO_LEN)
addl_sense_len = INFORMATION_SENSE_DESCR;
else
addl_sense_len = 0;
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, addl_sense_len);
spc_sense_info(cmd, err_blkno);
spc_sense_ascq(cmd, 0x21, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
queue_prt(mgmtq, Q_STE_ERRS,
"SBC%x LUN%d WRITE Illegal sector "
"(0x%llx + 0x%x) > 0x%ullx", cmd->c_lu->l_targ->s_targ_num,
cmd->c_lu->l_common->l_num, addr, cnt, d->d_size);
return;
}
if (cnt == 0) {
queue_prt(mgmtq, Q_STE_NONIO,
"SBC%x LUN%d WRITE zero block count for addr 0x%x",
cmd->c_lu->l_targ->s_targ_num, cmd->c_lu->l_common->l_num,
addr);
trans_send_complete(cmd, STATUS_GOOD);
return;
}
io = (disk_io_t *)cmd->c_emul_id;
if (io == NULL) {
io = sbc_io_alloc(cmd);
io->da_lba = addr;
io->da_lba_cnt = cnt;
io->da_clear_overlap = False;
io->da_aio.a_aio_cmplt = sbc_write_cmplt;
io->da_aio.a_id = io;
/*
* Only update the statistics the first time through
* for this particular command. If the requested transfer
* is larger than the transport can handle this routine
* will be called many times.
*/
cmd->c_lu->l_cmds_write++;
cmd->c_lu->l_sects_write += cnt;
}
#ifdef FULL_DEBUG
queue_prt(mgmtq, Q_STE_IO,
"SBC%x LUN%d blk 0x%llx, cnt %d, offset 0x%llx, size %d",
cmd->c_lu->l_targ->s_targ_num, cmd->c_lu->l_common->l_num, addr,
cnt, io->da_offset, io->da_data_len);
#endif
/*
* If a transport sets the maximum output value to zero we'll
* just request the entire amount. Otherwise, transfer no more
* than the maximum output or the reminder, whichever is less.
*/
max_out = cmd->c_lu->l_targ->s_maxout;
io->da_data_len = max_out ? MIN(max_out,
(cnt * 512) - io->da_offset) : (cnt * 512);
mmap_area = T10_MMAP_AREA(cmd);
if (mmap_area != MAP_FAILED) {
io->da_data_alloc = False;
io->da_data = (char *)mmap_area + (addr * 512LL) +
io->da_offset;
sbc_overlap_check(io);
} else if ((io->da_data = (char *)malloc(io->da_data_len)) == NULL) {
trans_send_complete(cmd, STATUS_BUSY);
return;
} else {
io->da_data_alloc = True;
}
if (trans_rqst_dataout(cmd, io->da_data, io->da_data_len,
io->da_offset, io) == False) {
trans_send_complete(cmd, STATUS_BUSY);
}
}
/*ARGSUSED*/
void
sbc_startstop(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
/*
* SBC-2 revision 16, section 5.17
* Reserve bit checks
*/
if ((cdb[1] & 0xfe) || cdb[2] || cdb[3] ||
(cdb[4] & ~(SBC_PWR_MASK|SBC_PWR_LOEJ|SBC_PWR_START)) ||
SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
/*
* More reserve bit checks
*/
switch ((cdb[4] & SBC_PWR_MASK) >> SBC_PWR_SHFT) {
case SBC_PWR_START_VALID:
/*
* It's an error to ask that the media be ejected.
*
* NOTE: Look for method to pass the START bit
* along to underlying storage. If we're asked to
* stop the drive there's not much that we can do
* for the virtual storage, but maybe everything else
* has been requested to stop as well.
*/
if (cdb[4] & SBC_PWR_LOEJ) {
goto send_error;
}
break;
case SBC_PWR_ACTIVE:
case SBC_PWR_IDLE:
case SBC_PWR_STANDBY:
case SBC_PWR_OBSOLETE:
break;
case SBC_PWR_LU_CONTROL:
case SBC_PWR_FORCE_IDLE_0:
case SBC_PWR_FORCE_STANDBY_0:
break;
default:
send_error:
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
if ((cdb[1] & 1) == 0) {
/*
* Immediate bit is not set, so go ahead a flush things.
*/
if (fsync(cmd->c_lu->l_common->l_fd) != 0) {
spc_sense_create(cmd, KEY_MEDIUM_ERROR, 0);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
}
trans_send_complete(cmd, STATUS_GOOD);
}
/*ARGSUSED*/
void
sbc_msense(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
struct mode_header *mode_hdr;
char *np;
disk_params_t *d;
disk_io_t *io;
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
/*
* SPC-3 Revision 21c section 6.8
* Reserve bit checks
*/
if ((cdb[1] & ~SPC_MODE_SENSE_DBD) ||
SAM_CONTROL_BYTE_RESERVED(cdb[5])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
/*
* Zero length causes a simple ack to occur.
*/
if (cdb[4] == 0) {
trans_send_complete(cmd, STATUS_GOOD);
return;
}
io = sbc_io_alloc(cmd);
/*
* Make sure that we have enough room in the data buffer. We'll
* only send back the amount requested though
*/
io->da_data_len = MAX(cdb[4], sizeof (struct mode_format) +
sizeof (struct mode_geometry) +
sizeof (struct mode_control_scsi3) +
sizeof (struct mode_cache_scsi3) +
sizeof (struct mode_info_ctrl) + (MODE_BLK_DESC_LENGTH * 5));
if ((io->da_data = (char *)calloc(1, io->da_data_len)) == NULL) {
sbc_io_free(io);
trans_send_complete(cmd, STATUS_BUSY);
return;
}
io->da_clear_overlap = False;
io->da_data_alloc = True;
mode_hdr = (struct mode_header *)io->da_data;
switch (cdb[2]) {
case MODE_SENSE_PAGE3_CODE:
if ((d->d_heads == 0) && (d->d_cyl == 0) && (d->d_spt == 0)) {
sbc_io_free(io);
spc_unsupported(cmd, cdb, cdb_len);
return;
}
mode_hdr->length = sizeof (struct mode_format);
mode_hdr->bdesc_length = MODE_BLK_DESC_LENGTH;
(void) sense_page3(d,
io->da_data + sizeof (*mode_hdr) + mode_hdr->bdesc_length);
break;
case MODE_SENSE_PAGE4_CODE:
if ((d->d_heads == 0) && (d->d_cyl == 0) && (d->d_spt == 0)) {
sbc_io_free(io);
spc_unsupported(cmd, cdb, cdb_len);
return;
}
mode_hdr->length = sizeof (struct mode_geometry);
mode_hdr->bdesc_length = MODE_BLK_DESC_LENGTH;
(void) sense_page4(d,
io->da_data + sizeof (*mode_hdr) + mode_hdr->bdesc_length);
break;
case MODE_SENSE_CACHE:
mode_hdr->length = sizeof (struct mode_cache_scsi3);
mode_hdr->bdesc_length = MODE_BLK_DESC_LENGTH;
(void) sense_cache(d,
io->da_data + sizeof (*mode_hdr) + mode_hdr->bdesc_length);
break;
case MODE_SENSE_CONTROL:
mode_hdr->length = sizeof (struct mode_control_scsi3);
mode_hdr->bdesc_length = MODE_BLK_DESC_LENGTH;
(void) sense_mode_control(cmd->c_lu,
io->da_data + sizeof (*mode_hdr) + mode_hdr->bdesc_length);
break;
case MODE_SENSE_INFO_CTRL:
(void) sense_info_ctrl(io->da_data);
break;
case MODE_SENSE_SEND_ALL:
/*
* SPC-3 revision 21c
* Section 6.9.1 Table 97
* "Return all subpage 00h mode pages in page_0 format"
*/
if (io->da_data_len < (sizeof (struct mode_format) +
sizeof (struct mode_geometry) +
sizeof (struct mode_control_scsi3) +
sizeof (struct mode_info_ctrl))) {
/*
* Believe it or not, there's an initiator out
* there which sends a mode sense request for all
* of the pages, without always sending a data-in
* size which is large enough.
* NOTE: Need to check the error key returned
* here and see if something else should be used.
*/
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
trans_send_complete(cmd, STATUS_CHECK);
} else {
/*
* If we don't have geometry then don't attempt
* report that information.
*/
if (d->d_heads && d->d_cyl && d->d_spt) {
np = sense_page3(d, io->da_data);
np = sense_page4(d, np);
}
np = sense_cache(d, np);
np = sense_mode_control(cmd->c_lu, np);
(void) sense_info_ctrl(np);
}
break;
case 0x00:
/*
* SPC-3 Revision 21c, section 6.9.1
* Table 97 -- Mode page code usage for all devices
* Page Code 00 == Vendor specific. We are going to return
* zeros.
*/
break;
default:
queue_prt(mgmtq, Q_STE_ERRS,
"SBC%x LUN%d Unsupported mode_sense request 0x%x",
cmd->c_lu->l_targ->s_targ_num, cmd->c_lu->l_common->l_num,
cdb[2]);
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
break;
}
if (trans_send_datain(cmd, io->da_data, cdb[4], 0, sbc_io_free,
True, io) == False) {
trans_send_complete(cmd, STATUS_BUSY);
}
}
/*ARGSUSED*/
void
sbc_recap(t10_cmd_t *cmd, uint8_t *cdb, size_t cdb_len)
{
uint64_t capacity;
int len;
uint32_t lba;
struct scsi_capacity *cap;
disk_params_t *d;
disk_io_t *io;
if ((d = (disk_params_t *)T10_PARAMS_AREA(cmd)) == NULL)
return;
capacity = d->d_size;
len = sizeof (struct scsi_capacity);
/*
* SBC-2 Revision 16, section 5.10.1
* Any of the following conditions will generate an error.
* (1) PMI bit is zero and LOGICAL block address is non-zero
* (2) Rserved bytes are not zero
* (3) Reseved bits are not zero
* (4) Reserved CONTROL bits are not zero
*/
if ((((cdb[8] & SBC_CAPACITY_PMI) == 0) &&
(cdb[2] || cdb[3] || cdb[4] || cdb[5])) ||
cdb[1] || cdb[6] || cdb[7] || (cdb[8] & ~SBC_CAPACITY_PMI) ||
SAM_CONTROL_BYTE_RESERVED(cdb[9])) {
spc_sense_create(cmd, KEY_ILLEGAL_REQUEST, 0);
spc_sense_ascq(cmd, SPC_ASC_INVALID_CDB, 0x00);
trans_send_complete(cmd, STATUS_CHECK);
return;
}
/*
* if the device capacity larger than 32 bits then set
* the capacity of the device to all 0xf's.
* a device that supports LBAs larger than 32 bits which
* should be used read_capacity(16) comand to get the capacity.
* NOTE: the adjustment to subject one from the capacity is
* done below.
*/
if (capacity & 0xFFFFFFFF00000000ULL)
capacity = 0xFFFFFFFF;
io = sbc_io_alloc(cmd);
if ((cap = (struct scsi_capacity *)calloc(1, len)) == NULL) {
sbc_io_free(io);
trans_send_complete(cmd, STATUS_BUSY);
return;
}
io->da_data = (char *)cap;
io->da_data_alloc = True;
io->da_clear_overlap = False;
io->da_data_len = len;
if (capacity != 0xFFFFFFFF) {
/*
* Look at the PMI information
*/
if (cdb[8] & SBC_CAPACITY_PMI) {
lba = cdb[2] << 24 | cdb[3] << 16 |
cdb[4] << 8 | cdb[5];
if (lba >= capacity)
cap->capacity = htonl(0xffffffff);
else
cap->capacity = (capacity - 1);
} else {
cap->capacity = htonl(capacity - 1);
}
} else {
cap->capacity = htonl(capacity);
}
cap->lbasize = htonl(d->d_bytes_sect);
if (trans_send_datain(cmd, io->da_data, io->da_data_len, 0,
sbc_io_free, True, io) == False) {
trans_send_complete(cmd, STATUS_BUSY);
}
}
