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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-10-30 15:17:05 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:45 +0100 |
| commit | a2b86019826cb97fd964fbaf101410c64cd78681 (patch) | |
| tree | da7659c2d90dcfd83d23ba3f432baa9f84aa80a2 /drivers/s390/cio/qdio_debug.c | |
| parent | [S390] Introduce get_clock_fast() (diff) | |
| download | linux-a2b86019826cb97fd964fbaf101410c64cd78681.tar.xz linux-a2b86019826cb97fd964fbaf101410c64cd78681.zip | |
[S390] qdio: add timestamp for last queue scan time
Add a timestamp per queue and update the timestamp when the queue is
scanned. Add the queue timestamps and the timestamp of the last
adapter interrupt to the debugfs output. The timestamps are useful
for debugging stall conditions.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio_debug.c')
| -rw-r--r-- | drivers/s390/cio/qdio_debug.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index aaf7f935bfd3..ed68245f9741 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -54,15 +54,17 @@ static int qstat_show(struct seq_file *m, void *v) if (!q) return 0; - seq_printf(m, "DSCI: %d nr_used: %d\n", - *(u32 *)q->irq_ptr->dsci, atomic_read(&q->nr_buf_used)); - seq_printf(m, "ftc: %d last_move: %d\n", + seq_printf(m, "Timestamp: %Lx Last AI: %Lx\n", + q->timestamp, last_ai_time); + seq_printf(m, "nr_used: %d ftc: %d last_move: %d\n", + atomic_read(&q->nr_buf_used), q->first_to_check, q->last_move); 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, "IRQs disabled: %u\n", + seq_printf(m, "DSCI: %d IRQs disabled: %u\n", + *(u32 *)q->irq_ptr->dsci, test_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state)); } |