Commit ad451abe authored by Julian Wiedmann's avatar Julian Wiedmann Committed by Vasily Gorbik
Browse files

s390/qdio: export SSQD via debugfs 



While we print out various SSQD fields at initialization time, having
raw & full access to the current SSQD can help with debugging.

Signed-off-by: default avatarJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent 014b0204

drivers/s390/cio/qdio_debug.c

+19 −0
Original line number Diff line number Diff line
@@ -190,6 +190,23 @@ static int qstat_show(struct seq_file *m, void *v) 


DEFINE_SHOW_ATTRIBUTE(qstat);



static int ssqd_show(struct seq_file *m, void *v)

{

	struct ccw_device *cdev = m->private;

	struct qdio_ssqd_desc ssqd;

	int rc;



	rc = qdio_get_ssqd_desc(cdev, &ssqd);

	if (rc)

		return rc;



	seq_hex_dump(m, "", DUMP_PREFIX_NONE, 16, 4, &ssqd, sizeof(ssqd),

		     false);

	return 0;

}



DEFINE_SHOW_ATTRIBUTE(ssqd);



static char *qperf_names[] = {

	"Assumed adapter interrupts",

	"QDIO interrupts",
@@ -303,6 +320,8 @@ void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev) 
						  debugfs_root);

	debugfs_create_file("statistics", S_IFREG | S_IRUGO | S_IWUSR,

			    irq_ptr->debugfs_dev, irq_ptr, &debugfs_perf_fops);

	debugfs_create_file("ssqd", 0444, irq_ptr->debugfs_dev, cdev,

			    &ssqd_fops);



	for_each_input_queue(irq_ptr, q, i)

		setup_debugfs_entry(irq_ptr->debugfs_dev, q);

CRA Git | Maintained and supported by SUSTech CRA and CCSE