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[S390] ctc: add support for irq statistics

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Add support for CTC 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 12:47:37 +01:00 committed by Martin Schwidefsky
parent 355eb4022b
commit 85b81cdd0b
3 changed files with 4 additions and 0 deletions
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1
arch/s390/include/asm/irq.h
View File

@ -24,6 +24,7 @@ enum interruption_class {
IOINT_VMR,
IOINT_LCS,
IOINT_CLW,
IOINT_CTC,
NMI_NMI,
NR_IRQS,
};

1
arch/s390/kernel/irq.c
View File

@ -41,6 +41,7 @@ static const struct irq_class intrclass_names[] = {
{.name = "VMR", .desc = "[I/O] Unit Record Devices" },
{.name = "LCS", .desc = "[I/O] LCS" },
{.name = "CLW", .desc = "[I/O] CLAW" },
{.name = "CTC", .desc = "[I/O] CTC" },
{.name = "NMI", .desc = "[NMI] Machine Check" },
};

2
drivers/s390/net/ctcm_main.c
View File

@ -24,6 +24,7 @@
#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
@ -1204,6 +1205,7 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
int cstat;
int dstat;
kstat_cpu(smp_processor_id()).irqs[IOINT_CTC]++;
CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG,
"Enter %s(%s)", CTCM_FUNTAIL, dev_name(&cdev->dev));