diff options
Diffstat (limited to 'drivers/target/target_core_spc.c')
| -rw-r--r-- | drivers/target/target_core_spc.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 0f30b71f0acc..2cb141ed68f5 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -47,10 +47,32 @@ static void spc_fill_alua_data(struct se_lun *lun, unsigned char *buf) spin_unlock(&lun->lun_tg_pt_gp_lock); } +static u16 +spc_find_scsi_transport_vd(int proto_id) +{ + switch (proto_id) { + case SCSI_PROTOCOL_FCP: + return SCSI_VERSION_DESCRIPTOR_FCP4; + case SCSI_PROTOCOL_ISCSI: + return SCSI_VERSION_DESCRIPTOR_ISCSI; + case SCSI_PROTOCOL_SAS: + return SCSI_VERSION_DESCRIPTOR_SAS3; + case SCSI_PROTOCOL_SBP: + return SCSI_VERSION_DESCRIPTOR_SBP3; + case SCSI_PROTOCOL_SRP: + return SCSI_VERSION_DESCRIPTOR_SRP; + default: + pr_warn("Cannot find VERSION DESCRIPTOR value for unknown SCSI" + " transport PROTOCOL IDENTIFIER %#x\n", proto_id); + return 0; + } +} + sense_reason_t spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) { struct se_lun *lun = cmd->se_lun; + struct se_portal_group *tpg = lun->lun_tpg; struct se_device *dev = cmd->se_dev; struct se_session *sess = cmd->se_sess; @@ -108,7 +130,17 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) strnlen(dev->t10_wwn.model, INQUIRY_MODEL_LEN)); memcpy(&buf[32], dev->t10_wwn.revision, strnlen(dev->t10_wwn.revision, INQUIRY_REVISION_LEN)); - buf[4] = 31; /* Set additional length to 31 */ + + /* + * Set the VERSION DESCRIPTOR fields + */ + put_unaligned_be16(SCSI_VERSION_DESCRIPTOR_SAM5, &buf[58]); + put_unaligned_be16(spc_find_scsi_transport_vd(tpg->proto_id), &buf[60]); + put_unaligned_be16(SCSI_VERSION_DESCRIPTOR_SPC4, &buf[62]); + if (cmd->se_dev->transport->get_device_type(dev) == TYPE_DISK) + put_unaligned_be16(SCSI_VERSION_DESCRIPTOR_SBC3, &buf[64]); + + buf[4] = 91; /* Set additional length to 91 */ return 0; } |