diff options
Diffstat (limited to 'drivers/s390/cio/ccwreq.c')
| -rw-r--r-- | drivers/s390/cio/ccwreq.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c index 7f206ed44fdf..d15f8b4d78bd 100644 --- a/drivers/s390/cio/ccwreq.c +++ b/drivers/s390/cio/ccwreq.c @@ -38,9 +38,13 @@ static u16 ccwreq_next_path(struct ccw_device *cdev) { struct ccw_request *req = &cdev->private->req; + if (!req->singlepath) { + req->mask = 0; + goto out; + } req->retries = req->maxretries; req->mask = lpm_adjust(req->mask >>= 1, req->lpm); - +out: return req->mask; } @@ -113,8 +117,12 @@ void ccw_request_start(struct ccw_device *cdev) { struct ccw_request *req = &cdev->private->req; - /* Try all paths twice to counter link flapping. */ - req->mask = 0x8080; + if (req->singlepath) { + /* Try all paths twice to counter link flapping. */ + req->mask = 0x8080; + } else + req->mask = req->lpm; + req->retries = req->maxretries; req->mask = lpm_adjust(req->mask, req->lpm); req->drc = 0; @@ -182,6 +190,8 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb) /* Ask the driver what to do */ if (cdev->drv && cdev->drv->uc_handler) { todo = cdev->drv->uc_handler(cdev, lcirb); + CIO_TRACE_EVENT(2, "uc_response"); + CIO_HEX_EVENT(2, &todo, sizeof(todo)); switch (todo) { case UC_TODO_RETRY: return IO_STATUS_ERROR; |