From 8414cd8057c29f60cda241aa489b33e4db6652f2 Mon Sep 17 00:00:00 2001 From: Viswas G Date: Tue, 11 Aug 2015 15:06:30 +0530 Subject: [PATCH] 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: Viswas G Reviewed-by: Suresh Thiagarajan Reviewed-by: Hannes Reinecke Reviewed-by: Jack Wang Reviewed-by: Tomas Henzl Signed-off-by: James Bottomley --- drivers/scsi/pm8001/pm8001_sas.h | 2 +- drivers/scsi/pm8001/pm80xx_hwi.c | 83 ++++++++++++++++++++++++++------ 2 files changed, 68 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index c9736cc17520..27880261aafd 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -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; }; diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 3d8b4ae06ae6..8817ce6ad4b8 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -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")); - port->port_attached = 0; - pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, - port_id, phy_id, 0, 0); + 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")); - port->port_attached = 0; - pm80xx_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN, - port_id, phy_id, 0, 0); + 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,