diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-11-25 16:18:29 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-02-10 14:49:35 +0300 |
| commit | 0b6f499022b6a87d04f56edd2bf863ea76923206 (patch) | |
| tree | edae4fea767436a891a55f09442fb2e2fbcb0681 /drivers/s390/cio/qdio_debug.c | |
| parent | fcd98d4002539f1e381916fc1b6648938c1eac76 (diff) | |
| download | linux-0b6f499022b6a87d04f56edd2bf863ea76923206.tar.xz | |
s390/qdio: simplify ACK tracking
Current code uses a 'polling' flag to keep track of whether an Input
Queue has any ACKed SBALs. QEBSM devices might have multiple ACKed
SBALs, and those are tracked separately with 'ack_count'.
By also setting ack_count for non-QEBSM devices (to a fixed value of 1),
we can use 'ack_count != 0' as replacement for the polling flag.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio_debug.c')
| -rw-r--r-- | drivers/s390/cio/qdio_debug.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index 35410e6eda2e..9c0370b27426 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -124,9 +124,8 @@ static int qstat_show(struct seq_file *m, void *v) seq_printf(m, "nr_used: %d ftc: %d\n", atomic_read(&q->nr_buf_used), q->first_to_check); if (q->is_input_q) { - seq_printf(m, "polling: %d ack start: %d ack count: %d\n", - q->u.in.polling, q->u.in.ack_start, - q->u.in.ack_count); + seq_printf(m, "ack start: %d ack count: %d\n", + q->u.in.ack_start, q->u.in.ack_count); seq_printf(m, "DSCI: %x IRQs disabled: %u\n", *(u8 *)q->irq_ptr->dsci, test_bit(QDIO_QUEUE_IRQS_DISABLED, |