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[S390] claw: add support for irq statistics

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Add support for CLAW 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 12:47:36 +01:00 committed by Martin Schwidefsky
parent 096a61682e
commit 355eb4022b
3 changed files with 4 additions and 0 deletions
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1
arch/s390/include/asm/irq.h
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@ -23,6 +23,7 @@ enum interruption_class {
IOINT_TAP,
IOINT_VMR,
IOINT_LCS,
IOINT_CLW,
NMI_NMI,
NR_IRQS,
};

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

@ -40,6 +40,7 @@ static const struct irq_class intrclass_names[] = {
{.name = "TAP", .desc = "[I/O] Tape" },
{.name = "VMR", .desc = "[I/O] Unit Record Devices" },
{.name = "LCS", .desc = "[I/O] LCS" },
{.name = "CLW", .desc = "[I/O] CLAW" },
{.name = "NMI", .desc = "[NMI] Machine Check" },
};

2
drivers/s390/net/claw.c
View file

@ -63,6 +63,7 @@
#define KMSG_COMPONENT "claw"
#include <linux/kernel_stat.h>
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include <asm/debug.h>
@ -640,6 +641,7 @@ claw_irq_handler(struct ccw_device *cdev,
struct claw_env *p_env;
struct chbk *p_ch_r=NULL;
kstat_cpu(smp_processor_id()).irqs[IOINT_CLW]++;
CLAW_DBF_TEXT(4, trace, "clawirq");
/* Bypass all 'unsolicited interrupts' */
privptr = dev_get_drvdata(&cdev->dev);