aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/pm8001/pm8001_hwi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_hwi.c')
-rw-r--r--drivers/scsi/pm8001/pm8001_hwi.c133
1 files changed, 91 insertions, 42 deletions
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 68a8217032d0..2328ff1349ac 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1186,7 +1186,7 @@ static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
{
s8 bar, logical = 0;
- for (bar = 0; bar < 6; bar++) {
+ for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
/*
** logical BARs for SPC:
** bar 0 and 1 - logical BAR0
@@ -1336,10 +1336,13 @@ int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
* @circularQ: the inbound queue we want to transfer to HBA.
* @opCode: the operation code represents commands which LLDD and fw recognized.
* @payload: the command payload of each operation command.
+ * @nb: size in bytes of the command payload
+ * @responseQueue: queue to interrupt on w/ command response (if any)
*/
int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
struct inbound_queue_table *circularQ,
- u32 opCode, void *payload, u32 responseQueue)
+ u32 opCode, void *payload, size_t nb,
+ u32 responseQueue)
{
u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
void *pMessage;
@@ -1350,10 +1353,13 @@ int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
pm8001_printk("No free mpi buffer\n"));
return -ENOMEM;
}
- BUG_ON(!payload);
- /*Copy to the payload*/
- memcpy(pMessage, payload, (pm8001_ha->iomb_size -
- sizeof(struct mpi_msg_hdr)));
+
+ if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
+ nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
+ memcpy(pMessage, payload, nb);
+ if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
+ memset(pMessage + nb, 0, pm8001_ha->iomb_size -
+ (nb + sizeof(struct mpi_msg_hdr)));
/*Build the header*/
Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
@@ -1364,7 +1370,7 @@ int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
/*Update the PI to the firmware*/
pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
circularQ->pi_offset, circularQ->producer_idx);
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
responseQueue, opCode, circularQ->producer_idx,
circularQ->consumer_index));
@@ -1436,6 +1442,10 @@ u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
/* read header */
header_tmp = pm8001_read_32(msgHeader);
msgHeader_tmp = cpu_to_le32(header_tmp);
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
+ "outbound opcode msgheader:%x ci=%d pi=%d\n",
+ msgHeader_tmp, circularQ->consumer_idx,
+ circularQ->producer_index));
if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
if (OPC_OUB_SKIP_ENTRY !=
(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
@@ -1604,7 +1614,8 @@ void pm8001_work_fn(struct work_struct *work)
break;
default:
- pm8001_printk("...query task failed!!!\n");
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
+ "...query task failed!!!\n"));
break;
});
@@ -1758,7 +1769,8 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
task_abort.tag = cpu_to_le32(ccb_tag);
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
+ sizeof(task_abort), 0);
if (ret)
pm8001_tag_free(pm8001_ha, ccb_tag);
@@ -1831,7 +1843,8 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
- res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd, 0);
+ res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
+ sizeof(sata_cmd), 0);
if (res) {
sas_free_task(task);
pm8001_tag_free(pm8001_ha, ccb_tag);
@@ -1890,6 +1903,11 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
pm8001_printk("SAS Address of IO Failure Drive:"
"%016llx", SAS_ADDR(t->dev->sas_addr)));
+ if (status)
+ PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
+ "status:0x%x, tag:0x%x, task:0x%p\n",
+ status, tag, t));
+
switch (status) {
case IO_SUCCESS:
PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
@@ -2072,7 +2090,7 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
break;
default:
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
/* not allowed case. Therefore, return failed status */
ts->resp = SAS_TASK_COMPLETE;
@@ -2125,7 +2143,7 @@ static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
if (unlikely(!t || !t->lldd_task || !t->dev))
return;
ts = &t->task_status;
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("port_id = %x,device_id = %x\n",
port_id, dev_id));
switch (event) {
@@ -2263,7 +2281,7 @@ static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
pm8001_printk(" IO_XFER_CMD_FRAME_ISSUED\n"));
return;
default:
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", event));
/* not allowed case. Therefore, return failed status */
ts->resp = SAS_TASK_COMPLETE;
@@ -2352,6 +2370,12 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_printk("ts null\n"));
return;
}
+
+ if (status)
+ PM8001_IOERR_DBG(pm8001_ha, pm8001_printk(
+ "status:0x%x, tag:0x%x, task::0x%p\n",
+ status, tag, t));
+
/* Print sas address of IO failed device */
if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
(status != IO_UNDERFLOW)) {
@@ -2652,7 +2676,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
break;
default:
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
/* not allowed case. Therefore, return failed status */
ts->resp = SAS_TASK_COMPLETE;
@@ -2723,7 +2747,7 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
if (unlikely(!t || !t->lldd_task || !t->dev))
return;
ts = &t->task_status;
- PM8001_IO_DBG(pm8001_ha, pm8001_printk(
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
"port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
port_id, dev_id, tag, event));
switch (event) {
@@ -2872,7 +2896,7 @@ static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
ts->stat = SAS_OPEN_TO;
break;
default:
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", event));
/* not allowed case. Therefore, return failed status */
ts->resp = SAS_TASK_COMPLETE;
@@ -2917,9 +2941,13 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
t = ccb->task;
ts = &t->task_status;
pm8001_dev = ccb->device;
- if (status)
+ if (status) {
PM8001_FAIL_DBG(pm8001_ha,
pm8001_printk("smp IO status 0x%x\n", status));
+ PM8001_IOERR_DBG(pm8001_ha,
+ pm8001_printk("status:0x%x, tag:0x%x, task:0x%p\n",
+ status, tag, t));
+ }
if (unlikely(!t || !t->lldd_task || !t->dev))
return;
@@ -3070,7 +3098,7 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
break;
default:
- PM8001_IO_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_DEV_NO_RESPONSE;
@@ -3355,7 +3383,8 @@ static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
((phyId & 0x0F) << 4) | (port_id & 0x0F));
payload.param0 = cpu_to_le32(param0);
payload.param1 = cpu_to_le32(param1);
- pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
}
static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
@@ -3416,7 +3445,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_get_lrate_mode(phy, link_rate);
break;
default:
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("unknown device type(%x)\n", deviceType));
break;
}
@@ -3463,7 +3492,7 @@ hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
struct sas_ha_struct *sas_ha = pm8001_ha->sas;
struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
unsigned long flags;
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_SATA_PHY_UP port id = %d,"
" phy id = %d\n", port_id, phy_id));
port->port_state = portstate;
@@ -3541,7 +3570,7 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
break;
default:
port->port_attached = 0;
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk(" phy Down and(default) = %x\n",
portstate));
break;
@@ -3689,7 +3718,7 @@ int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
pm8001_printk(": FLASH_UPDATE_DISABLED\n"));
break;
default:
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("No matched status = %d\n", status));
break;
}
@@ -3805,8 +3834,9 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
struct sas_ha_struct *sas_ha = pm8001_ha->sas;
struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
- PM8001_MSG_DBG(pm8001_ha,
- pm8001_printk("outbound queue HW event & event type : "));
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
+ "SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
+ port_id, phy_id, eventType, status));
switch (eventType) {
case HW_EVENT_PHY_START_STATUS:
PM8001_MSG_DBG(pm8001_ha,
@@ -3990,7 +4020,7 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
pm8001_printk("EVENT_BROADCAST_ASYNCH_EVENT\n"));
break;
default:
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown event type = %x\n", eventType));
break;
}
@@ -4161,7 +4191,7 @@ static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_printk("OPC_OUB_SAS_RE_INITIALIZE\n"));
break;
default:
- PM8001_MSG_DBG(pm8001_ha,
+ PM8001_DEVIO_DBG(pm8001_ha,
pm8001_printk("Unknown outbound Queue IOMB OPC = %x\n",
opc));
break;
@@ -4284,7 +4314,7 @@ static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
- (u32 *)&smp_cmd, 0);
+ &smp_cmd, sizeof(smp_cmd), 0);
if (rc)
goto err_out_2;
@@ -4352,7 +4382,8 @@ static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
ssp_cmd.esgl = 0;
}
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
+ sizeof(ssp_cmd), 0);
return ret;
}
@@ -4461,7 +4492,8 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
}
}
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
+ sizeof(sata_cmd), 0);
return ret;
}
@@ -4496,7 +4528,8 @@ pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
memcpy(payload.sas_identify.sas_addr,
pm8001_ha->sas_addr, SAS_ADDR_SIZE);
payload.sas_identify.phy_id = phy_id;
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
+ sizeof(payload), 0);
return ret;
}
@@ -4518,7 +4551,8 @@ static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
memset(&payload, 0, sizeof(payload));
payload.tag = cpu_to_le32(tag);
payload.phy_id = cpu_to_le32(phy_id);
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
+ sizeof(payload), 0);
return ret;
}
@@ -4577,7 +4611,8 @@ static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
SAS_ADDR_SIZE);
- rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
return rc;
}
@@ -4598,7 +4633,8 @@ int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
payload.device_id = cpu_to_le32(device_id);
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("unregister device device_id = %d\n", device_id));
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
return ret;
}
@@ -4621,7 +4657,8 @@ static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
payload.tag = cpu_to_le32(1);
payload.phyop_phyid =
cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
return ret;
}
@@ -4649,6 +4686,9 @@ static irqreturn_t
pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
pm8001_chip_interrupt_disable(pm8001_ha, vec);
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
+ "irq vec %d, ODMR:0x%x\n",
+ vec, pm8001_cr32(pm8001_ha, 0, 0x30)));
process_oq(pm8001_ha, vec);
pm8001_chip_interrupt_enable(pm8001_ha, vec);
return IRQ_HANDLED;
@@ -4672,7 +4712,8 @@ static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
task_abort.device_id = cpu_to_le32(dev_id);
task_abort.tag = cpu_to_le32(cmd_tag);
}
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
+ sizeof(task_abort), 0);
return ret;
}
@@ -4729,7 +4770,8 @@ int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
if (pm8001_ha->chip_id != chip_8001)
sspTMCmd.ds_ads_m = 0x08;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd,
+ sizeof(sspTMCmd), 0);
return ret;
}
@@ -4819,7 +4861,8 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
default:
break;
}
- rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req, 0);
+ rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
+ sizeof(nvmd_req), 0);
if (rc) {
kfree(fw_control_context);
pm8001_tag_free(pm8001_ha, tag);
@@ -4903,7 +4946,8 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
default:
break;
}
- rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req, 0);
+ rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
+ sizeof(nvmd_req), 0);
if (rc) {
kfree(fw_control_context);
pm8001_tag_free(pm8001_ha, tag);
@@ -4938,7 +4982,8 @@ pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
payload.sgl_addr_hi =
cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
- ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
return ret;
}
@@ -4960,6 +5005,8 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
if (!fw_control_context)
return -ENOMEM;
fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
+ PM8001_DEVIO_DBG(pm8001_ha, pm8001_printk(
+ "dma fw_control context input length :%x\n", fw_control->len));
memcpy(buffer, fw_control->buffer, fw_control->len);
flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
@@ -5083,7 +5130,8 @@ pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
payload.tag = cpu_to_le32(tag);
payload.device_id = cpu_to_le32(pm8001_dev->device_id);
payload.nds = cpu_to_le32(state);
- rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
return rc;
}
@@ -5108,7 +5156,8 @@ pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
payload.SSAHOLT = cpu_to_le32(0xd << 25);
payload.sata_hol_tmo = cpu_to_le32(80);
payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
- rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+ rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+ sizeof(payload), 0);
if (rc)
pm8001_tag_free(pm8001_ha, tag);
return rc;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.