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authorJan Glauber <jang@linux.vnet.ibm.com>2008-12-25 13:38:44 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-12-25 13:38:58 +0100
commit23589d057ac2da81e456d4a9dcdd9135fd96f493 (patch)
tree756fb6034f953689100ad0d9efaa90565295ebf5 /drivers/s390/cio
parentbbd50e172f75b1d12ef9b1bcf593b51a44199016 (diff)
downloadop-kernel-dev-23589d057ac2da81e456d4a9dcdd9135fd96f493.zip
op-kernel-dev-23589d057ac2da81e456d4a9dcdd9135fd96f493.tar.gz
[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 <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r--drivers/s390/cio/qdio_main.c7
-rw-r--r--drivers/s390/cio/qdio_perf.c6
-rw-r--r--drivers/s390/cio/qdio_perf.h4
3 files changed, 16 insertions, 1 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 7572a00..a44a8c5 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 ec5c4a4..bec0110 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 5c406a8..d16c1c6 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;
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