[SCSI] qla2xxx: IDC implementation for ISP83xx.

Signed-off-by: Santosh Vernekar <santosh.vernekar@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 173 insertions, 3 deletions

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 31ef8e25a61d..1222e937a5fe 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -332,6 +332,166 @@ qla2x00_get_link_speed_str(struct qla_hw_data *ha)
 	return link_speed;
 }
 
+void
+qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
+{
+	struct qla_hw_data *ha = vha->hw;
+
+	/*
+	 * 8200 AEN Interpretation:
+	 * mb[0] = AEN code
+	 * mb[1] = AEN Reason code
+	 * mb[2] = LSW of Peg-Halt Status-1 Register
+	 * mb[6] = MSW of Peg-Halt Status-1 Register
+	 * mb[3] = LSW of Peg-Halt Status-2 register
+	 * mb[7] = MSW of Peg-Halt Status-2 register
+	 * mb[4] = IDC Device-State Register value
+	 * mb[5] = IDC Driver-Presence Register value
+	 */
+	ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
+	    "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
+	    mb[0], mb[1], mb[2], mb[6]);
+	ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
+	    "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
+	    "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
+
+	if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
+				IDC_HEARTBEAT_FAILURE)) {
+		ha->flags.nic_core_hung = 1;
+		ql_log(ql_log_warn, vha, 0x5060,
+		    "83XX: F/W Error Reported: Check if reset required.\n");
+
+		if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
+			uint32_t protocol_engine_id, fw_err_code, err_level;
+
+			/*
+			 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
+			 *  - PEG-Halt Status-1 Register:
+			 *	(LSW = mb[2], MSW = mb[6])
+			 *	Bits 0-7   = protocol-engine ID
+			 *	Bits 8-28  = f/w error code
+			 *	Bits 29-31 = Error-level
+			 *	    Error-level 0x1 = Non-Fatal error
+			 *	    Error-level 0x2 = Recoverable Fatal error
+			 *	    Error-level 0x4 = UnRecoverable Fatal error
+			 *  - PEG-Halt Status-2 Register:
+			 *	(LSW = mb[3], MSW = mb[7])
+			 */
+			protocol_engine_id = (mb[2] & 0xff);
+			fw_err_code = (((mb[2] & 0xff00) >> 8) |
+			    ((mb[6] & 0x1fff) << 8));
+			err_level = ((mb[6] & 0xe000) >> 13);
+			ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
+			    "Register: protocol_engine_id=0x%x "
+			    "fw_err_code=0x%x err_level=0x%x.\n",
+			    protocol_engine_id, fw_err_code, err_level);
+			ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
+			    "Register: 0x%x%x.\n", mb[7], mb[3]);
+			if (err_level == ERR_LEVEL_NON_FATAL) {
+				ql_log(ql_log_warn, vha, 0x5063,
+				    "Not a fatal error, f/w has recovered "
+				    "iteself.\n");
+			} else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
+				ql_log(ql_log_fatal, vha, 0x5064,
+				    "Recoverable Fatal error: Chip reset "
+				    "required.\n");
+				qla83xx_schedule_work(vha,
+				    QLA83XX_NIC_CORE_RESET);
+			} else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
+				ql_log(ql_log_fatal, vha, 0x5065,
+				    "Unrecoverable Fatal error: Set FAILED "
+				    "state, reboot required.\n");
+				qla83xx_schedule_work(vha,
+				    QLA83XX_NIC_CORE_UNRECOVERABLE);
+			}
+		}
+
+		if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
+			uint16_t peg_fw_state, nw_interface_link_up;
+			uint16_t nw_interface_signal_detect, sfp_status;
+			uint16_t htbt_counter, htbt_monitor_enable;
+			uint16_t sfp_additonal_info, sfp_multirate;
+			uint16_t sfp_tx_fault, link_speed, dcbx_status;
+
+			/*
+			 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
+			 *  - PEG-to-FC Status Register:
+			 *	(LSW = mb[2], MSW = mb[6])
+			 *	Bits 0-7   = Peg-Firmware state
+			 *	Bit 8      = N/W Interface Link-up
+			 *	Bit 9      = N/W Interface signal detected
+			 *	Bits 10-11 = SFP Status
+			 *	  SFP Status 0x0 = SFP+ transceiver not expected
+			 *	  SFP Status 0x1 = SFP+ transceiver not present
+			 *	  SFP Status 0x2 = SFP+ transceiver invalid
+			 *	  SFP Status 0x3 = SFP+ transceiver present and
+			 *	  valid
+			 *	Bits 12-14 = Heartbeat Counter
+			 *	Bit 15     = Heartbeat Monitor Enable
+			 *	Bits 16-17 = SFP Additional Info
+			 *	  SFP info 0x0 = Unregocnized transceiver for
+			 *	  Ethernet
+			 *	  SFP info 0x1 = SFP+ brand validation failed
+			 *	  SFP info 0x2 = SFP+ speed validation failed
+			 *	  SFP info 0x3 = SFP+ access error
+			 *	Bit 18     = SFP Multirate
+			 *	Bit 19     = SFP Tx Fault
+			 *	Bits 20-22 = Link Speed
+			 *	Bits 23-27 = Reserved
+			 *	Bits 28-30 = DCBX Status
+			 *	  DCBX Status 0x0 = DCBX Disabled
+			 *	  DCBX Status 0x1 = DCBX Enabled
+			 *	  DCBX Status 0x2 = DCBX Exchange error
+			 *	Bit 31     = Reserved
+			 */
+			peg_fw_state = (mb[2] & 0x00ff);
+			nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
+			nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
+			sfp_status = ((mb[2] & 0x0c00) >> 10);
+			htbt_counter = ((mb[2] & 0x7000) >> 12);
+			htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
+			sfp_additonal_info = (mb[6] & 0x0003);
+			sfp_multirate = ((mb[6] & 0x0004) >> 2);
+			sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
+			link_speed = ((mb[6] & 0x0070) >> 4);
+			dcbx_status = ((mb[6] & 0x7000) >> 12);
+
+			ql_log(ql_log_warn, vha, 0x5066,
+			    "Peg-to-Fc Status Register:\n"
+			    "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
+			    "nw_interface_signal_detect=0x%x"
+			    "\nsfp_statis=0x%x.\n ", peg_fw_state,
+			    nw_interface_link_up, nw_interface_signal_detect,
+			    sfp_status);
+			ql_log(ql_log_warn, vha, 0x5067,
+			    "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
+			    "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
+			    htbt_counter, htbt_monitor_enable,
+			    sfp_additonal_info, sfp_multirate);
+			ql_log(ql_log_warn, vha, 0x5068,
+			    "sfp_tx_fault=0x%x, link_state=0x%x, "
+			    "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
+			    dcbx_status);
+
+			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+		}
+
+		if (mb[1] & IDC_HEARTBEAT_FAILURE) {
+			ql_log(ql_log_warn, vha, 0x5069,
+			    "Heartbeat Failure encountered, chip reset "
+			    "required.\n");
+
+			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+		}
+	}
+
+	if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
+		ql_log(ql_log_info, vha, 0x506a,
+		    "IDC Device-State changed = 0x%x.\n", mb[4]);
+		qla83xx_schedule_work(vha, MBA_IDC_AEN);
+	}
+}
+
 /**
  * qla2x00_async_event() - Process aynchronous events.
  * @ha: SCSI driver HA context
@@ -825,8 +985,18 @@ skip_rio:
 	case MBA_IDC_COMPLETE:
 	case MBA_IDC_NOTIFY:
 	case MBA_IDC_TIME_EXT:
-		qla81xx_idc_event(vha, mb[0], mb[1]);
+		if (IS_QLA81XX(vha->hw))
+			qla81xx_idc_event(vha, mb[0], mb[1]);
+		break;
+
+	case MBA_IDC_AEN:
+		mb[4] = RD_REG_WORD(&reg24->mailbox4);
+		mb[5] = RD_REG_WORD(&reg24->mailbox5);
+		mb[6] = RD_REG_WORD(&reg24->mailbox6);
+		mb[7] = RD_REG_WORD(&reg24->mailbox7);
+		qla83xx_handle_8200_aen(vha, mb);
 		break;
+
 	default:
 		ql_dbg(ql_dbg_async, vha, 0x5057,
 		    "Unknown AEN:%04x %04x %04x %04x\n",
@@ -2301,7 +2471,7 @@ qla24xx_intr_handler(int irq, void *dev_id)
 	unsigned long	iter;
 	uint32_t	stat;
 	uint32_t	hccr;
-	uint16_t	mb[4];
+	uint16_t	mb[8];
 	struct rsp_que *rsp;
 	unsigned long	flags;
 
@@ -2457,7 +2627,7 @@ qla24xx_msix_default(int irq, void *dev_id)
 	int		status;
 	uint32_t	stat;
 	uint32_t	hccr;
-	uint16_t	mb[4];
+	uint16_t	mb[8];
 	unsigned long flags;
 
 	rsp = (struct rsp_que *) dev_id;