Commit 8414cd80 authored by Viswas G's avatar Viswas G Committed by James Bottomley
Browse files

pm80xx: Add PORT RECOVERY TIMEOUT support 



PORT RECOVERY TIMEOUT is the maximum time between the controller's
detection of the PHY down until the receipt of the ID_Frame (from the
same remote SAS port). If the time expires before the ID_FRAME is
received, the port is considered INVALID and can be removed. The
IOP_EVENT_PORT_RECOVERY_TIMER_TMO event is reported following the
IOP_EVENT_ PHY_DOWN event when the PHY/port does not recover after
Port Recovery Time.

Signed-off-by: default avatarViswas G <Viswas.G@pmcs.com>
Reviewed-by: default avatarSuresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: default avatarTomas Henzl <thenzl@redhat.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Odin.com>
parent 3b77894b

drivers/scsi/pm8001/pm8001_sas.h

+1 −1
Original line number Diff line number Diff line
@@ -241,7 +241,7 @@ struct pm8001_chip_info { 
struct pm8001_port {

	struct asd_sas_port	sas_port;

	u8			port_attached;

	u8			wide_port_phymap;

	u16			wide_port_phymap;

	u8			port_state;

	struct list_head	list;

};

drivers/scsi/pm8001/pm80xx_hwi.c

+67 −16
Original line number Diff line number Diff line
@@ -309,6 +309,9 @@ static void read_main_config_table(struct pm8001_hba_info *pm8001_ha) 
		pm8001_mr32(address, MAIN_INT_VECTOR_TABLE_OFFSET);

	pm8001_ha->main_cfg_tbl.pm80xx_tbl.phy_attr_table_offset =

		pm8001_mr32(address, MAIN_SAS_PHY_ATTR_TABLE_OFFSET);

	/* read port recover and reset timeout */

	pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer =

		pm8001_mr32(address, MAIN_PORT_RECOVERY_TIMER);

}



/**
@@ -585,6 +588,12 @@ static void update_main_config_table(struct pm8001_hba_info *pm8001_ha) 
		pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer);

	pm8001_mw32(address, MAIN_INT_REASSERTION_DELAY,

		pm8001_ha->main_cfg_tbl.pm80xx_tbl.interrupt_reassertion_delay);



	pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer &= 0xffff0000;

	pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer |=

							PORT_RECOVERY_TIMEOUT;

	pm8001_mw32(address, MAIN_PORT_RECOVERY_TIMER,

			pm8001_ha->main_cfg_tbl.pm80xx_tbl.port_recovery_timer);

}



/**
@@ -2836,6 +2845,32 @@ static void pm80xx_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha, 
static int pm80xx_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,

	u32 phyId, u32 phy_op);



static void hw_event_port_recover(struct pm8001_hba_info *pm8001_ha,

					void *piomb)

{

	struct hw_event_resp *pPayload = (struct hw_event_resp *)(piomb + 4);

	u32 phyid_npip_portstate = le32_to_cpu(pPayload->phyid_npip_portstate);

	u8 phy_id = (u8)((phyid_npip_portstate & 0xFF0000) >> 16);

	u32 lr_status_evt_portid =

		le32_to_cpu(pPayload->lr_status_evt_portid);

	u8 deviceType = pPayload->sas_identify.dev_type;

	u8 link_rate = (u8)((lr_status_evt_portid & 0xF0000000) >> 28);

	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];

	u8 port_id = (u8)(lr_status_evt_portid & 0x000000FF);

	struct pm8001_port *port = &pm8001_ha->port[port_id];



	if (deviceType == SAS_END_DEVICE) {

		pm80xx_chip_phy_ctl_req(pm8001_ha, phy_id,

					PHY_NOTIFY_ENABLE_SPINUP);

	}



	port->wide_port_phymap |= (1U << phy_id);

	pm8001_get_lrate_mode(phy, link_rate);

	phy->sas_phy.oob_mode = SAS_OOB_MODE;

	phy->phy_state = PHY_STATE_LINK_UP_SPCV;

	phy->phy_attached = 1;

}



/**

 * hw_event_sas_phy_up -FW tells me a SAS phy up event.

 * @pm8001_ha: our hba card information
@@ -2863,6 +2898,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb) 
	unsigned long flags;

	u8 deviceType = pPayload->sas_identify.dev_type;

	port->port_state = portstate;

	port->wide_port_phymap |= (1U << phy_id);

	phy->phy_state = PHY_STATE_LINK_UP_SPCV;

	PM8001_MSG_DBG(pm8001_ha, pm8001_printk(

		"portid:%d; phyid:%d; linkrate:%d; "
@@ -2988,7 +3024,6 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) 
	struct pm8001_port *port = &pm8001_ha->port[port_id];

	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];

	port->port_state = portstate;

	phy->phy_type = 0;

	phy->identify.device_type = 0;

	phy->phy_attached = 0;

	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
@@ -3000,9 +3035,13 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) 
			pm8001_printk(" PortInvalid portID %d\n", port_id));

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk(" Last phy Down and port invalid\n"));

		if (phy->phy_type & PORT_TYPE_SATA) {

			phy->phy_type = 0;

			port->port_attached = 0;

			pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,

					port_id, phy_id, 0, 0);

		}

		sas_phy_disconnected(&phy->sas_phy);

		break;

	case PORT_IN_RESET:

		PM8001_MSG_DBG(pm8001_ha,
@@ -3010,22 +3049,26 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) 
		break;

	case PORT_NOT_ESTABLISHED:

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk(" phy Down and PORT_NOT_ESTABLISHED\n"));

			pm8001_printk(" Phy Down and PORT_NOT_ESTABLISHED\n"));

		port->port_attached = 0;

		break;

	case PORT_LOSTCOMM:

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk(" phy Down and PORT_LOSTCOMM\n"));

			pm8001_printk(" Phy Down and PORT_LOSTCOMM\n"));

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk(" Last phy Down and port invalid\n"));

		if (phy->phy_type & PORT_TYPE_SATA) {

			port->port_attached = 0;

			phy->phy_type = 0;

			pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,

					port_id, phy_id, 0, 0);

		}

		sas_phy_disconnected(&phy->sas_phy);

		break;

	default:

		port->port_attached = 0;

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk(" phy Down and(default) = 0x%x\n",

			pm8001_printk(" Phy Down and(default) = 0x%x\n",

			portstate));

		break;
@@ -3091,7 +3134,7 @@ static int mpi_thermal_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) 
 */

static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb)

{

	unsigned long flags;

	unsigned long flags, i;

	struct hw_event_resp *pPayload =

		(struct hw_event_resp *)(piomb + 4);

	u32 lr_status_evt_portid =
@@ -3104,9 +3147,9 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) 
		(u16)((lr_status_evt_portid & 0x00FFFF00) >> 8);

	u8 status =

		(u8)((lr_status_evt_portid & 0x0F000000) >> 24);



	struct sas_ha_struct *sas_ha = pm8001_ha->sas;

	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];

	struct pm8001_port *port = &pm8001_ha->port[port_id];

	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];

	PM8001_MSG_DBG(pm8001_ha,

		pm8001_printk("portid:%d phyid:%d event:0x%x status:0x%x\n",
@@ -3132,7 +3175,9 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) 
	case HW_EVENT_PHY_DOWN:

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk("HW_EVENT_PHY_DOWN\n"));

		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);

		if (phy->phy_type & PORT_TYPE_SATA)

			sas_ha->notify_phy_event(&phy->sas_phy,

				PHYE_LOSS_OF_SIGNAL);

		phy->phy_attached = 0;

		phy->phy_state = 0;

		hw_event_phy_down(pm8001_ha, piomb);
@@ -3252,13 +3297,19 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) 
		pm80xx_hw_event_ack_req(pm8001_ha, 0,

			HW_EVENT_PORT_RECOVERY_TIMER_TMO,

			port_id, phy_id, 0, 0);

		sas_phy_disconnected(sas_phy);

		phy->phy_attached = 0;

		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);

		for (i = 0; i < pm8001_ha->chip->n_phy; i++) {

			if (port->wide_port_phymap & (1 << i)) {

				phy = &pm8001_ha->phy[i];

				sas_ha->notify_phy_event(&phy->sas_phy,

						PHYE_LOSS_OF_SIGNAL);

				port->wide_port_phymap &= ~(1 << i);

			}

		}

		break;

	case HW_EVENT_PORT_RECOVER:

		PM8001_MSG_DBG(pm8001_ha,

			pm8001_printk("HW_EVENT_PORT_RECOVER\n"));

		hw_event_port_recover(pm8001_ha, piomb);

		break;

	case HW_EVENT_PORT_RESET_COMPLETE:

		PM8001_MSG_DBG(pm8001_ha,

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