From 23589d057ac2da81e456d4a9dcdd9135fd96f493 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Thu, 25 Dec 2008 13:38:44 +0100 Subject: [S390] qdio: add eqbs/sqbs instruction counters Add counters for the eqbs and sqbs instructions that indicate how often we issued the instructions and how often the instructions returned with less buffers than specified. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio_main.c | 7 ++++++- drivers/s390/cio/qdio_perf.c | 6 ++++++ drivers/s390/cio/qdio_perf.h | 4 ++++ 3 files changed, 16 insertions(+), 1 deletion(-) (limited to 'drivers/s390/cio') diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 7572a0057623..a44a8c5b91be 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -129,6 +129,7 @@ static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state, char dbf_text[15]; BUG_ON(!q->irq_ptr->sch_token); + qdio_perf_stat_inc(&perf_stats.debug_eqbs_all); if (!q->is_input_q) nr += q->irq_ptr->nr_input_qs; @@ -139,8 +140,10 @@ again: /* At least one buffer was processed, return and extract the remaining * buffers later. */ - if ((ccq == 96) && (count != tmp_count)) + if ((ccq == 96) && (count != tmp_count)) { + qdio_perf_stat_inc(&perf_stats.debug_eqbs_incomplete); return (count - tmp_count); + } if (rc == 1) { QDIO_DBF_TEXT5(1, trace, "eqAGAIN"); goto again; @@ -179,6 +182,7 @@ static int qdio_do_sqbs(struct qdio_q *q, unsigned char state, int start, char dbf_text[15]; BUG_ON(!q->irq_ptr->sch_token); + qdio_perf_stat_inc(&perf_stats.debug_sqbs_all); if (!q->is_input_q) nr += q->irq_ptr->nr_input_qs; @@ -187,6 +191,7 @@ again: rc = qdio_check_ccq(q, ccq); if (rc == 1) { QDIO_DBF_TEXT5(1, trace, "sqAGAIN"); + qdio_perf_stat_inc(&perf_stats.debug_sqbs_incomplete); goto again; } if (rc < 0) { diff --git a/drivers/s390/cio/qdio_perf.c b/drivers/s390/cio/qdio_perf.c index ec5c4a414235..bec01100f8e8 100644 --- a/drivers/s390/cio/qdio_perf.c +++ b/drivers/s390/cio/qdio_perf.c @@ -80,6 +80,12 @@ static int qdio_perf_proc_show(struct seq_file *m, void *v) (long)atomic_long_read(&perf_stats.debug_stop_polling)); seq_printf(m, "AI inbound tasklet loops after stop polling\t: %li\n", (long)atomic_long_read(&perf_stats.thinint_inbound_loop2)); + seq_printf(m, "QEBSM EQBS total/incomplete\t\t\t: %li/%li\n", + (long)atomic_long_read(&perf_stats.debug_eqbs_all), + (long)atomic_long_read(&perf_stats.debug_eqbs_incomplete)); + seq_printf(m, "QEBSM SQBS total/incomplete\t\t\t: %li/%li\n", + (long)atomic_long_read(&perf_stats.debug_sqbs_all), + (long)atomic_long_read(&perf_stats.debug_sqbs_incomplete)); seq_printf(m, "\n"); return 0; } diff --git a/drivers/s390/cio/qdio_perf.h b/drivers/s390/cio/qdio_perf.h index 5c406a8b7387..d16c1c67160f 100644 --- a/drivers/s390/cio/qdio_perf.h +++ b/drivers/s390/cio/qdio_perf.h @@ -40,6 +40,10 @@ struct qdio_perf_stats { /* for debugging */ atomic_long_t debug_tl_out_timer; atomic_long_t debug_stop_polling; + atomic_long_t debug_eqbs_all; + atomic_long_t debug_eqbs_incomplete; + atomic_long_t debug_sqbs_all; + atomic_long_t debug_sqbs_incomplete; }; extern struct qdio_perf_stats perf_stats; -- cgit v1.2.3