[SCSI] cxgb3i: subscribe to error notification from cxgb3 driver

Add error notification handling function which is called during chip reset.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 23 insertions, 2 deletions

diff --git a/drivers/scsi/cxgb3i/cxgb3i_init.c b/drivers/scsi/cxgb3i/cxgb3i_init.c
index 1ce9f244e46..833dbfa3f88 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_init.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_init.c
@@ -26,6 +26,7 @@ MODULE_VERSION(DRV_MODULE_VERSION);
 
 static void open_s3_dev(struct t3cdev *);
 static void close_s3_dev(struct t3cdev *);
+static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error);
 
 static cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS];
 static struct cxgb3_client t3c_client = {
@@ -33,6 +34,7 @@ static struct cxgb3_client t3c_client = {
         .handlers = cxgb3i_cpl_handlers,
         .add = open_s3_dev,
         .remove = close_s3_dev,
+        .err_handler = s3_err_handler,
 };
 
 /**
@@ -49,7 +51,7 @@ static void open_s3_dev(struct t3cdev *t3dev)
         }
 
         cxgb3i_sdev_add(t3dev, &t3c_client);
-        cxgb3i_adapter_add(t3dev);
+        cxgb3i_adapter_open(t3dev);
 }
 
 /**
@@ -58,10 +60,29 @@ static void open_s3_dev(struct t3cdev *t3dev)
  */
 static void close_s3_dev(struct t3cdev *t3dev)
 {
-        cxgb3i_adapter_remove(t3dev);
+        cxgb3i_adapter_close(t3dev);
         cxgb3i_sdev_remove(t3dev);
 }
 
+static void s3_err_handler(struct t3cdev *tdev, u32 status, u32 error)
+{
+        struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(tdev);
+
+        cxgb3i_log_info("snic 0x%p, tdev 0x%p, status 0x%x, err 0x%x.\n",
+                        snic, tdev, status, error);
+        if (!snic)
+                return;
+
+        switch (status) {
+        case OFFLOAD_STATUS_DOWN:
+                snic->flags |= CXGB3I_ADAPTER_FLAG_RESET;
+                break;
+        case OFFLOAD_STATUS_UP:
+                snic->flags &= ~CXGB3I_ADAPTER_FLAG_RESET;
+                break;
+        }
+}
+
 /**
  * cxgb3i_init_module - module init entry point
  *