Commit 355eb402 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

[S390] claw: add support for irq statistics 



Add support for CLAW 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 096a6168

arch/s390/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ enum interruption_class { 
	IOINT_TAP,

	IOINT_VMR,

	IOINT_LCS,

	IOINT_CLW,

	NMI_NMI,

	NR_IRQS,

};

arch/s390/kernel/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -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" },

};

drivers/s390/net/claw.c

+2 −0
Original line number Diff line number Diff line
@@ -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);