/*
* Enable SCCS and TPGS fields for Emulated ALUA
*/
- if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED)
- spc_fill_alua_data(lun->lun_sep, buf);
+ spc_fill_alua_data(lun->lun_sep, buf);
buf[7] = 0x2; /* CmdQue=1 */
snprintf(&buf[8], 8, "LIO-ORG");
- snprintf(&buf[16], 16, "%s", dev->se_sub_dev->t10_wwn.model);
- snprintf(&buf[32], 4, "%s", dev->se_sub_dev->t10_wwn.revision);
+ snprintf(&buf[16], 16, "%s", dev->t10_wwn.model);
+ snprintf(&buf[32], 4, "%s", dev->t10_wwn.revision);
buf[4] = 31; /* Set additional length to 31 */
return 0;
struct se_device *dev = cmd->se_dev;
u16 len = 0;
- if (dev->se_sub_dev->su_dev_flags &
- SDF_EMULATED_VPD_UNIT_SERIAL) {
+ if (dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
u32 unit_serial_len;
- unit_serial_len = strlen(dev->se_sub_dev->t10_wwn.unit_serial);
+ unit_serial_len = strlen(dev->t10_wwn.unit_serial);
unit_serial_len++; /* For NULL Terminator */
- len += sprintf(&buf[4], "%s",
- dev->se_sub_dev->t10_wwn.unit_serial);
+ len += sprintf(&buf[4], "%s", dev->t10_wwn.unit_serial);
len++; /* Extra Byte for NULL Terminator */
buf[3] = len;
}
static void spc_parse_naa_6h_vendor_specific(struct se_device *dev,
unsigned char *buf)
{
- unsigned char *p = &dev->se_sub_dev->t10_wwn.unit_serial[0];
+ unsigned char *p = &dev->t10_wwn.unit_serial[0];
int cnt;
bool next = true;
struct t10_alua_lu_gp_member *lu_gp_mem;
struct t10_alua_tg_pt_gp *tg_pt_gp;
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
- unsigned char *prod = &dev->se_sub_dev->t10_wwn.model[0];
+ unsigned char *prod = &dev->t10_wwn.model[0];
u32 prod_len;
u32 unit_serial_len, off = 0;
u16 len = 0, id_len;
* /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial
* value in order to return the NAA id.
*/
- if (!(dev->se_sub_dev->su_dev_flags & SDF_EMULATED_VPD_UNIT_SERIAL))
+ if (!(dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL))
goto check_t10_vend_desc;
/* CODE SET == Binary */
prod_len += strlen(prod);
prod_len++; /* For : */
- if (dev->se_sub_dev->su_dev_flags &
- SDF_EMULATED_VPD_UNIT_SERIAL) {
- unit_serial_len =
- strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]);
+ if (dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
+ unit_serial_len = strlen(&dev->t10_wwn.unit_serial[0]);
unit_serial_len++; /* For NULL Terminator */
id_len += sprintf(&buf[off+12], "%s:%s", prod,
- &dev->se_sub_dev->t10_wwn.unit_serial[0]);
+ &dev->t10_wwn.unit_serial[0]);
}
buf[off] = 0x2; /* ASCII */
buf[off+1] = 0x1; /* T10 Vendor ID */
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
* section 7.5.1 Table 362
*/
- if (dev->se_sub_dev->t10_alua.alua_type !=
- SPC3_ALUA_EMULATED)
- goto check_scsi_name;
-
tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
if (!tg_pt_gp_mem)
goto check_lu_gp;
buf[5] = 0x07;
/* If WriteCache emulation is enabled, set V_SUP */
- if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
+ if (cmd->se_dev->dev_attrib.emulate_write_cache > 0)
buf[6] = 0x01;
return 0;
}
* emulate_tpu=1 or emulate_tpws=1 we will be expect a
* different page length for Thin Provisioning.
*/
- if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws)
+ if (dev->dev_attrib.emulate_tpu || dev->dev_attrib.emulate_tpws)
have_tp = 1;
buf[0] = dev->transport->get_device_type(dev);
/*
* Set MAXIMUM TRANSFER LENGTH
*/
- max_sectors = min(dev->se_sub_dev->se_dev_attrib.fabric_max_sectors,
- dev->se_sub_dev->se_dev_attrib.hw_max_sectors);
+ max_sectors = min(dev->dev_attrib.fabric_max_sectors,
+ dev->dev_attrib.hw_max_sectors);
put_unaligned_be32(max_sectors, &buf[8]);
/*
* Set OPTIMAL TRANSFER LENGTH
*/
- put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.optimal_sectors, &buf[12]);
+ put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]);
/*
* Exit now if we don't support TP.
/*
* Set MAXIMUM UNMAP LBA COUNT
*/
- put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count, &buf[20]);
+ put_unaligned_be32(dev->dev_attrib.max_unmap_lba_count, &buf[20]);
/*
* Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT
*/
- put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count,
+ put_unaligned_be32(dev->dev_attrib.max_unmap_block_desc_count,
&buf[24]);
/*
* Set OPTIMAL UNMAP GRANULARITY
*/
- put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity, &buf[28]);
+ put_unaligned_be32(dev->dev_attrib.unmap_granularity, &buf[28]);
/*
* UNMAP GRANULARITY ALIGNMENT
*/
- put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment,
+ put_unaligned_be32(dev->dev_attrib.unmap_granularity_alignment,
&buf[32]);
- if (dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment != 0)
+ if (dev->dev_attrib.unmap_granularity_alignment != 0)
buf[32] |= 0x80; /* Set the UGAVALID bit */
return 0;
buf[0] = dev->transport->get_device_type(dev);
buf[3] = 0x3c;
- buf[5] = dev->se_sub_dev->se_dev_attrib.is_nonrot ? 1 : 0;
+ buf[5] = dev->dev_attrib.is_nonrot ? 1 : 0;
return 0;
}
* the UNMAP command (see 5.25). A TPU bit set to zero indicates
* that the device server does not support the UNMAP command.
*/
- if (dev->se_sub_dev->se_dev_attrib.emulate_tpu != 0)
+ if (dev->dev_attrib.emulate_tpu != 0)
buf[5] = 0x80;
/*
* A TPWS bit set to zero indicates that the device server does not
* support the use of the WRITE SAME (16) command to unmap LBAs.
*/
- if (dev->se_sub_dev->se_dev_attrib.emulate_tpws != 0)
+ if (dev->dev_attrib.emulate_tpws != 0)
buf[5] |= 0x40;
return 0;
* Registered Extended LUN WWN has been set via ConfigFS
* during device creation/restart.
*/
- if (cmd->se_dev->se_sub_dev->su_dev_flags &
- SDF_EMULATED_VPD_UNIT_SERIAL) {
+ if (cmd->se_dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
buf[3] = ARRAY_SIZE(evpd_handlers);
for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p)
buf[p + 4] = evpd_handlers[p].page;
unsigned char buf[SE_INQUIRY_BUF];
int p, ret;
+ memset(buf, 0, SE_INQUIRY_BUF);
+
if (dev == tpg->tpg_virt_lun0.lun_se_dev)
buf[0] = 0x3f; /* Not connected */
else
* command sequence order shall be explicitly handled by the application client
* through the selection of appropriate ommands and task attributes.
*/
- p[3] = (dev->se_sub_dev->se_dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10;
+ p[3] = (dev->dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10;
/*
* From spc4r17, section 7.4.6 Control mode Page
*
* for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless
* to the number of commands completed with one of those status codes.
*/
- p[4] = (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 :
- (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00;
+ p[4] = (dev->dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 :
+ (dev->dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00;
/*
* From spc4r17, section 7.4.6 Control mode Page
*
* which the command was received shall be completed with TASK ABORTED
* status (see SAM-4).
*/
- p[5] = (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? 0x40 : 0x00;
+ p[5] = (dev->dev_attrib.emulate_tas) ? 0x40 : 0x00;
p[8] = 0xff;
p[9] = 0xff;
p[11] = 30;
{
p[0] = 0x08;
p[1] = 0x12;
- if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
+ if (dev->dev_attrib.emulate_write_cache > 0)
p[2] = 0x04; /* Write Cache Enable */
p[12] = 0x20; /* Disabled Read Ahead */
(cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
spc_modesense_write_protect(&buf[3], type);
- if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
- (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
+ if ((dev->dev_attrib.emulate_write_cache > 0) &&
+ (dev->dev_attrib.emulate_fua_write > 0))
spc_modesense_dpofua(&buf[3], type);
} else {
offset -= 1;
(cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
spc_modesense_write_protect(&buf[2], type);
- if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
- (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
+ if ((dev->dev_attrib.emulate_write_cache > 0) &&
+ (dev->dev_attrib.emulate_fua_write > 0))
spc_modesense_dpofua(&buf[2], type);
}
return 0;
}
+int spc_emulate_report_luns(struct se_cmd *cmd)
+{
+ struct se_dev_entry *deve;
+ struct se_session *sess = cmd->se_sess;
+ unsigned char *buf;
+ u32 lun_count = 0, offset = 8, i;
+
+ if (cmd->data_length < 16) {
+ pr_warn("REPORT LUNS allocation length %u too small\n",
+ cmd->data_length);
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
+ }
+
+ buf = transport_kmap_data_sg(cmd);
+ if (!buf)
+ return -ENOMEM;
+
+ /*
+ * If no struct se_session pointer is present, this struct se_cmd is
+ * coming via a target_core_mod PASSTHROUGH op, and not through
+ * a $FABRIC_MOD. In that case, report LUN=0 only.
+ */
+ if (!sess) {
+ int_to_scsilun(0, (struct scsi_lun *)&buf[offset]);
+ lun_count = 1;
+ goto done;
+ }
+
+ spin_lock_irq(&sess->se_node_acl->device_list_lock);
+ for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
+ deve = sess->se_node_acl->device_list[i];
+ if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
+ continue;
+ /*
+ * We determine the correct LUN LIST LENGTH even once we
+ * have reached the initial allocation length.
+ * See SPC2-R20 7.19.
+ */
+ lun_count++;
+ if ((offset + 8) > cmd->data_length)
+ continue;
+
+ int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]);
+ offset += 8;
+ }
+ spin_unlock_irq(&sess->se_node_acl->device_list_lock);
+
+ /*
+ * See SPC3 r07, page 159.
+ */
+done:
+ lun_count *= 8;
+ buf[0] = ((lun_count >> 24) & 0xff);
+ buf[1] = ((lun_count >> 16) & 0xff);
+ buf[2] = ((lun_count >> 8) & 0xff);
+ buf[3] = (lun_count & 0xff);
+ transport_kunmap_data_sg(cmd);
+
+ target_complete_cmd(cmd, GOOD);
+ return 0;
+}
+EXPORT_SYMBOL(spc_emulate_report_luns);
+
static int spc_emulate_testunitready(struct se_cmd *cmd)
{
target_complete_cmd(cmd, GOOD);
int spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
{
struct se_device *dev = cmd->se_dev;
- struct se_subsystem_dev *su_dev = dev->se_sub_dev;
unsigned char *cdb = cmd->t_task_cdb;
switch (cdb[0]) {
*size = (cdb[7] << 8) + cdb[8];
break;
case PERSISTENT_RESERVE_IN:
- if (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS)
- cmd->execute_cmd = target_scsi3_emulate_pr_in;
*size = (cdb[7] << 8) + cdb[8];
+ cmd->execute_cmd = target_scsi3_emulate_pr_in;
break;
case PERSISTENT_RESERVE_OUT:
- if (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS)
- cmd->execute_cmd = target_scsi3_emulate_pr_out;
*size = (cdb[7] << 8) + cdb[8];
+ cmd->execute_cmd = target_scsi3_emulate_pr_out;
break;
case RELEASE:
case RELEASE_10:
else
*size = cmd->data_length;
- if (su_dev->t10_pr.res_type != SPC_PASSTHROUGH)
- cmd->execute_cmd = target_scsi2_reservation_release;
+ cmd->execute_cmd = target_scsi2_reservation_release;
break;
case RESERVE:
case RESERVE_10:
else
*size = cmd->data_length;
- /*
- * Setup the legacy emulated handler for SPC-2 and
- * >= SPC-3 compatible reservation handling (CRH=1)
- * Otherwise, we assume the underlying SCSI logic is
- * is running in SPC_PASSTHROUGH, and wants reservations
- * emulation disabled.
- */
- if (su_dev->t10_pr.res_type != SPC_PASSTHROUGH)
- cmd->execute_cmd = target_scsi2_reservation_reserve;
+ cmd->execute_cmd = target_scsi2_reservation_reserve;
break;
case REQUEST_SENSE:
*size = cdb[4];
* Do implict HEAD_OF_QUEUE processing for INQUIRY.
* See spc4r17 section 5.3
*/
- if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
- cmd->sam_task_attr = MSG_HEAD_TAG;
+ cmd->sam_task_attr = MSG_HEAD_TAG;
cmd->execute_cmd = spc_emulate_inquiry;
break;
case SECURITY_PROTOCOL_IN:
*size = (cdb[6] << 16) + (cdb[7] << 8) + cdb[8];
break;
case REPORT_LUNS:
- cmd->execute_cmd = target_report_luns;
+ cmd->execute_cmd = spc_emulate_report_luns;
*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
/*
* Do implict HEAD_OF_QUEUE processing for REPORT_LUNS
* See spc4r17 section 5.3
*/
- if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
- cmd->sam_task_attr = MSG_HEAD_TAG;
+ cmd->sam_task_attr = MSG_HEAD_TAG;
break;
case TEST_UNIT_READY:
cmd->execute_cmd = spc_emulate_testunitready;
* MAINTENANCE_IN from SCC-2
* Check for emulated MI_REPORT_TARGET_PGS
*/
- if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS &&
- su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) {
+ if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS) {
cmd->execute_cmd =
target_emulate_report_target_port_groups;
}
* MAINTENANCE_OUT from SCC-2
* Check for emulated MO_SET_TARGET_PGS.
*/
- if (cdb[1] == MO_SET_TARGET_PGS &&
- su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) {
+ if (cdb[1] == MO_SET_TARGET_PGS) {
cmd->execute_cmd =
target_emulate_set_target_port_groups;
}
projects / mirror_ubuntu-bionic-kernel.git / blobdiff