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path: root/drivers/s390/cio/ccwreq.c
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Diffstat (limited to 'drivers/s390/cio/ccwreq.c')
-rw-r--r--drivers/s390/cio/ccwreq.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c
index 37df42af05e..7f206ed44fd 100644
--- a/drivers/s390/cio/ccwreq.c
+++ b/drivers/s390/cio/ccwreq.c
@@ -159,6 +159,7 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)
{
struct irb *irb = &cdev->private->irb;
struct cmd_scsw *scsw = &irb->scsw.cmd;
+ enum uc_todo todo;
/* Perform BASIC SENSE if needed. */
if (ccw_device_accumulate_and_sense(cdev, lcirb))
@@ -178,6 +179,20 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)
/* Check for command reject. */
if (irb->ecw[0] & SNS0_CMD_REJECT)
return IO_REJECTED;
+ /* Ask the driver what to do */
+ if (cdev->drv && cdev->drv->uc_handler) {
+ todo = cdev->drv->uc_handler(cdev, lcirb);
+ switch (todo) {
+ case UC_TODO_RETRY:
+ return IO_STATUS_ERROR;
+ case UC_TODO_RETRY_ON_NEW_PATH:
+ return IO_PATH_ERROR;
+ case UC_TODO_STOP:
+ return IO_REJECTED;
+ default:
+ return IO_STATUS_ERROR;
+ }
+ }
/* Assume that unexpected SENSE data implies an error. */
return IO_STATUS_ERROR;
}