diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2011-07-29 17:17:16 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:41:01 -0700 |
| commit | 9185560808a0dc0432b130ca9d9965cb7ce052a6 (patch) | |
| tree | 879a6c10abe3ce8bcc15334c4eed76fe0bc1d430 | |
| parent | 2cd24aec048a5653f1a8934b7fd58023009bcc1f (diff) | |
isci: fix event-get pointer increment
commit 77cd72a53f6426f81b7f56a862402849ee903bda upstream.
Hardware only increments the put pointer on event types >= 4. Do not
increment the get pointer for event type 3.
Reported-by: Kapil Karkra <kapil.karkra@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/scsi/isci/host.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 26072f1e9852..ef46d8323377 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -531,6 +531,9 @@ static void sci_controller_process_completions(struct isci_host *ihost) break; case SCU_COMPLETION_TYPE_EVENT: + sci_controller_event_completion(ihost, ent); + break; + case SCU_COMPLETION_TYPE_NOTIFY: { event_cycle ^= ((event_get+1) & SCU_MAX_EVENTS) << (SMU_COMPLETION_QUEUE_GET_EVENT_CYCLE_BIT_SHIFT - SCU_MAX_EVENTS_SHIFT); |