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[S390] 3270: add support for irq statistics

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

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2011-01-05 12:47:32 +01:00 committed by Martin Schwidefsky
parent 12fae5858c
commit 3fe22f6bfd
3 changed files with 4 additions and 0 deletions
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1
arch/s390/include/asm/irq.h
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@ -19,6 +19,7 @@ enum interruption_class {
IOINT_QDI,
IOINT_DAS,
IOINT_C15,
IOINT_C70,
NMI_NMI,
NR_IRQS,
};

1
arch/s390/kernel/irq.c
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@ -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" },
};

2
drivers/s390/char/raw3270.c
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@ -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;