diff options
| -rw-r--r-- | drivers/scsi/isci/port.c | 31 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.c | 24 |
3 files changed, 37 insertions, 21 deletions
diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index f9d20c1e63ca..e55ef65f5212 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -305,7 +305,9 @@ static void port_state_machine_change(struct isci_port *iport, static void isci_port_hard_reset_complete(struct isci_port *isci_port, enum sci_status completion_status) { - dev_dbg(&isci_port->isci_host->pdev->dev, + struct isci_host *ihost = isci_port->owning_controller; + + dev_dbg(&ihost->pdev->dev, "%s: isci_port = %p, completion_status=%x\n", __func__, isci_port, completion_status); @@ -316,23 +318,24 @@ static void isci_port_hard_reset_complete(struct isci_port *isci_port, /* The reset failed. The port state is now SCI_PORT_FAILED. */ if (isci_port->active_phy_mask == 0) { + int phy_idx = isci_port->last_active_phy; + struct isci_phy *iphy = &ihost->phys[phy_idx]; /* Generate the link down now to the host, since it * was intercepted by the hard reset state machine when * it really happened. */ - isci_port_link_down(isci_port->isci_host, - &isci_port->isci_host->phys[ - isci_port->last_active_phy], - isci_port); + isci_port_link_down(ihost, iphy, isci_port); } /* Advance the port state so that link state changes will be - * noticed. - */ + * noticed. + */ port_state_machine_change(isci_port, SCI_PORT_SUB_WAITING); } - complete_all(&isci_port->hard_reset_complete); + clear_bit(IPORT_RESET_PENDING, &isci_port->state); + wake_up(&ihost->eventq); + } /* This method will return a true value if the specified phy can be assigned to @@ -1610,6 +1613,11 @@ void sci_port_broadcast_change_received(struct isci_port *iport, struct isci_phy isci_port_bc_change_received(ihost, iport, iphy); } +static void wait_port_reset(struct isci_host *ihost, struct isci_port *iport) +{ + wait_event(ihost->eventq, !test_bit(IPORT_RESET_PENDING, &iport->state)); +} + int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy) { @@ -1620,9 +1628,8 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", __func__, iport); - init_completion(&iport->hard_reset_complete); - spin_lock_irqsave(&ihost->scic_lock, flags); + set_bit(IPORT_RESET_PENDING, &iport->state); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT status = sci_port_hard_reset(iport, ISCI_PORT_RESET_TIMEOUT); @@ -1630,7 +1637,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor spin_unlock_irqrestore(&ihost->scic_lock, flags); if (status == SCI_SUCCESS) { - wait_for_completion(&iport->hard_reset_complete); + wait_port_reset(ihost, iport); dev_dbg(&ihost->pdev->dev, "%s: iport = %p; hard reset completion\n", @@ -1644,6 +1651,8 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor __func__, iport, iport->hard_reset_status); } } else { + clear_bit(IPORT_RESET_PENDING, &iport->state); + wake_up(&ihost->eventq); ret = TMF_RESP_FUNC_FAILED; dev_err(&ihost->pdev->dev, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 265972939e3a..a0dcdaeac3b2 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -98,7 +98,8 @@ struct isci_port { struct isci_host *isci_host; struct list_head remote_dev_list; struct list_head domain_dev_list; - struct completion hard_reset_complete; + #define IPORT_RESET_PENDING 0 + unsigned long state; enum sci_status hard_reset_status; struct sci_base_state_machine sm; bool ready_exit; diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index b96e6044eda9..c4d324ccee11 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -1330,29 +1330,35 @@ isci_task_request_complete(struct isci_host *ihost, } static int isci_reset_device(struct isci_host *ihost, + struct domain_device *dev, struct isci_remote_device *idev) { - struct sas_phy *phy = sas_get_local_phy(idev->domain_dev); - enum sci_status status; - unsigned long flags; int rc; + unsigned long flags; + enum sci_status status; + struct sas_phy *phy = sas_get_local_phy(dev); + struct isci_port *iport = dev->port->lldd_port; dev_dbg(&ihost->pdev->dev, "%s: idev %p\n", __func__, idev); spin_lock_irqsave(&ihost->scic_lock, flags); status = sci_remote_device_reset(idev); - if (status != SCI_SUCCESS) { - spin_unlock_irqrestore(&ihost->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: sci_remote_device_reset(%p) returned %d!\n", __func__, idev, status); rc = TMF_RESP_FUNC_FAILED; goto out; } - spin_unlock_irqrestore(&ihost->scic_lock, flags); - rc = sas_phy_reset(phy, true); + if (scsi_is_sas_phy_local(phy)) { + struct isci_phy *iphy = &ihost->phys[phy->number]; + + rc = isci_port_perform_hard_reset(ihost, iport, iphy); + } else + rc = sas_phy_reset(phy, !dev_is_sata(dev)); /* Terminate in-progress I/O now. */ isci_remote_device_nuke_requests(ihost, idev); @@ -1390,7 +1396,7 @@ int isci_task_I_T_nexus_reset(struct domain_device *dev) goto out; } - ret = isci_reset_device(ihost, idev); + ret = isci_reset_device(ihost, dev, idev); out: isci_put_device(idev); return ret; @@ -1413,7 +1419,7 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) goto out; } - ret = isci_reset_device(ihost, idev); + ret = isci_reset_device(ihost, dev, idev); out: isci_put_device(idev); return ret; |