From 83884014eaaa68834ced39d1c75f1bc20d618ec0 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 8 Mar 2012 22:41:52 -0800 Subject: isci: Remote device stop also suspends the RNC and terminates I/O. Fixing the remote device state machine to suspend and terminate all outstanding I/O before the device stopped state is reached. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams --- drivers/scsi/isci/remote_device.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) (limited to 'drivers/scsi/isci/remote_device.c') diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index f40d429d2cc..3048e02aeb7 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -263,13 +263,15 @@ enum sci_status sci_remote_device_stop(struct isci_remote_device *idev, case SCI_SMP_DEV_IDLE: case SCI_SMP_DEV_CMD: sci_change_state(sm, SCI_DEV_STOPPING); - if (idev->started_request_count == 0) { + if (idev->started_request_count == 0) sci_remote_node_context_destruct(&idev->rnc, - rnc_destruct_done, idev); - return SCI_SUCCESS; - } else - return sci_remote_device_terminate_requests(idev); - break; + rnc_destruct_done, + idev); + else { + sci_remote_device_suspend(idev); + sci_remote_device_terminate_requests(idev); + } + return SCI_SUCCESS; case SCI_DEV_STOPPING: /* All requests should have been terminated, but if there is an * attempt to stop a device already in the stopping state, then @@ -1403,14 +1405,8 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem spin_lock_irqsave(&ihost->scic_lock, flags); idev->domain_dev->lldd_dev = NULL; /* disable new lookups */ set_bit(IDEV_GONE, &idev->flags); - spin_unlock_irqrestore(&ihost->scic_lock, flags); - - /* Kill all outstanding requests. */ - isci_remote_device_nuke_requests(ihost, idev); set_bit(IDEV_STOP_PENDING, &idev->flags); - - spin_lock_irqsave(&ihost->scic_lock, flags); status = sci_remote_device_stop(idev, 50); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -1420,6 +1416,9 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem else wait_for_device_stop(ihost, idev); + dev_dbg(&ihost->pdev->dev, + "%s: isci_device = %p, waiting done.\n", __func__, idev); + return status; } -- cgit v1.2.3