diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 5efba0d29190..5b63c505a2f7 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -880,7 +880,7 @@ static inline void qdio_check_outbound_pci_queues(struct qdio_irq *irq) struct qdio_q *out; int i; - if (!pci_out_supported(irq)) + if (!pci_out_supported(irq) || !irq->scan_threshold) return; for_each_output_queue(irq, out, i) @@ -973,7 +973,7 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr) } } - if (!pci_out_supported(irq_ptr)) + if (!pci_out_supported(irq_ptr) || !irq_ptr->scan_threshold) return; for_each_output_queue(irq_ptr, q, i) { @@ -1528,6 +1528,7 @@ set: static int handle_outbound(struct qdio_q *q, unsigned int callflags, int bufnr, int count) { + const unsigned int scan_threshold = q->irq_ptr->scan_threshold; unsigned char state = 0; int used, rc = 0; @@ -1566,8 +1567,12 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags, rc = qdio_kick_outbound_q(q, 0); } + /* Let drivers implement their own completion scanning: */ + if (!scan_threshold) + return rc; + /* in case of SIGA errors we must process the error immediately */ - if (used >= q->u.out.scan_threshold || rc) + if (used >= scan_threshold || rc) qdio_tasklet_schedule(q); else /* free the SBALs in case of no further traffic */ |