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| author | Jeff Skirvin <jeffrey.d.skirvin@intel.com> | 2012-03-08 22:42:03 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2012-05-17 14:33:41 -0700 |
| commit | 621120ca56850249554996c94efe75f8200a2cc0 (patch) | |
| tree | 892326cd79b25e0741ee271c01cc04aadb1af8ef /drivers/scsi/isci | |
| parent | 033d19d298b4245da2d3d6c795ea97e419f9ac61 (diff) | |
| download | linux-3.10-621120ca56850249554996c94efe75f8200a2cc0.tar.gz linux-3.10-621120ca56850249554996c94efe75f8200a2cc0.tar.bz2 linux-3.10-621120ca56850249554996c94efe75f8200a2cc0.zip | |
isci: Manage tag releases differently when aborting tasks.
When an individual request is being terminated, the request's tag
is managed in the terminate function.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci')
| -rw-r--r-- | drivers/scsi/isci/host.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_device.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.c | 3 |
4 files changed, 12 insertions, 6 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 53c3ad64c99..ef2790faeab 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1141,7 +1141,8 @@ void isci_host_completion_routine(unsigned long data) if (test_and_clear_bit(IREQ_ABORT_PATH_ACTIVE, &request->flags)) wake_up_all(&ihost->eventq); - isci_free_tag(ihost, request->io_tag); + if (!test_bit(IREQ_NO_AUTO_FREE_TAG, &request->flags)) + isci_free_tag(ihost, request->io_tag); } spin_unlock_irq(&ihost->scic_lock); diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 21a9800a9be..adeda64e512 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -104,15 +104,15 @@ static enum sci_status sci_remote_device_terminate_req( int check_abort, struct isci_request *ireq) { - dev_dbg(&ihost->pdev->dev, - "%s: idev=%p; flags=%lx; req=%p; req target=%p\n", - __func__, idev, idev->flags, ireq, ireq->target_device); - if (!test_bit(IREQ_ACTIVE, &ireq->flags) || (ireq->target_device != idev) || (check_abort && !test_bit(IREQ_PENDING_ABORT, &ireq->flags))) return SCI_SUCCESS; + dev_dbg(&ihost->pdev->dev, + "%s: idev=%p; flags=%lx; req=%p; req target=%p\n", + __func__, idev, idev->flags, ireq, ireq->target_device); + set_bit(IREQ_ABORT_PATH_ACTIVE, &ireq->flags); return sci_controller_terminate_request(ihost, idev, ireq); @@ -209,11 +209,14 @@ enum sci_status isci_remote_device_terminate_requests( rnc_suspend_count, idev->rnc.suspend_count); if (ireq) { /* Terminate a specific TC. */ + set_bit(IREQ_NO_AUTO_FREE_TAG, &ireq->flags); sci_remote_device_terminate_req(ihost, idev, 0, ireq); spin_unlock_irqrestore(&ihost->scic_lock, flags); wait_event(ihost->eventq, isci_check_reqterm(ihost, idev, ireq, rnc_suspend_count)); + clear_bit(IREQ_NO_AUTO_FREE_TAG, &ireq->flags); + isci_free_tag(ihost, ireq->io_tag); } else { /* Terminate all TCs. */ sci_remote_device_terminate_requests(idev); diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index d12e97531da..1a651579bb3 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -87,6 +87,7 @@ struct isci_request { #define IREQ_PENDING_ABORT 4 /* Set == device was not suspended yet */ #define IREQ_TC_ABORT_POSTED 5 #define IREQ_ABORT_PATH_ACTIVE 6 + #define IREQ_NO_AUTO_FREE_TAG 7 /* Set when being explicitly managed */ unsigned long flags; /* XXX kill ttype and ttype_ptr, allocate full sas_task */ union ttype_ptr_union { diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index c1c6dd0473a..e798c6ae959 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -719,7 +719,8 @@ isci_task_request_complete(struct isci_host *ihost, */ set_bit(IREQ_TERMINATED, &ireq->flags); - isci_free_tag(ihost, ireq->io_tag); + if (!test_bit(IREQ_NO_AUTO_FREE_TAG, &ireq->flags)) + isci_free_tag(ihost, ireq->io_tag); /* The task management part completes last. */ if (tmf_complete) |