isci: implement error isr

Add basic support for handling/reporting error interrupts.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 7f351a35e87b..cb2e3f9558e9 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -85,11 +85,27 @@ irqreturn_t isci_intx_isr(int vec, void *data)
                 if (scic_sds_controller_isr(scic)) {
                         tasklet_schedule(&ihost->completion_tasklet);
                         ret = IRQ_HANDLED;
+                } else if (scic_sds_controller_error_isr(scic)) {
+                        spin_lock(&ihost->scic_lock);
+                        scic_sds_controller_error_handler(scic);
+                        spin_unlock(&ihost->scic_lock);
+                        ret = IRQ_HANDLED;
                 }
         }
+
         return ret;
 }
 
+irqreturn_t isci_error_isr(int vec, void *data)
+{
+        struct isci_host *ihost = data;
+        struct scic_sds_controller *scic = ihost->core_controller;
+
+        if (scic_sds_controller_error_isr(scic))
+                scic_sds_controller_error_handler(scic);
+
+        return IRQ_HANDLED;
+}
 
 /**
  * isci_host_start_complete() - This function is called by the core library,