Commit 3fe22f6b authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] 3270: add support for irq statistics 



Add support for 3270 I/O interrupt statistics in /proc/interrupts.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 12fae585

arch/s390/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ enum interruption_class { 
	IOINT_QDI,

	IOINT_DAS,

	IOINT_C15,

	IOINT_C70,

	NMI_NMI,

	NR_IRQS,

};

arch/s390/kernel/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ static const struct irq_class intrclass_names[] = { 
	{.name = "QDI", .desc = "[I/O] QDIO Interrupt" },

	{.name = "DAS", .desc = "[I/O] DASD" },

	{.name = "C15", .desc = "[I/O] 3215" },

	{.name = "C70", .desc = "[I/O] 3270" },

	{.name = "NMI", .desc = "[NMI] Machine Check" },

};

drivers/s390/char/raw3270.c

+2 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
 *     Copyright IBM Corp. 2003, 2009

 */



#include <linux/kernel_stat.h>

#include <linux/module.h>

#include <linux/err.h>

#include <linux/init.h>
@@ -329,6 +330,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) 
	struct raw3270_request *rq;

	int rc;



	kstat_cpu(smp_processor_id()).irqs[IOINT_C70]++;

	rp = dev_get_drvdata(&cdev->dev);

	if (!rp)

		return;