Commit 096a6168 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] lcs: add support for irq statistics 



Add support for LCS 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 f48198d5

arch/s390/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ enum interruption_class { 
	IOINT_C70,

	IOINT_TAP,

	IOINT_VMR,

	IOINT_LCS,

	NMI_NMI,

	NR_IRQS,

};

arch/s390/kernel/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ static const struct irq_class intrclass_names[] = { 
	{.name = "C70", .desc = "[I/O] 3270" },

	{.name = "TAP", .desc = "[I/O] Tape" },

	{.name = "VMR", .desc = "[I/O] Unit Record Devices" },

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

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

};

drivers/s390/net/lcs.c

+2 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#define KMSG_COMPONENT		"lcs"

#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt



#include <linux/kernel_stat.h>

#include <linux/module.h>

#include <linux/if.h>

#include <linux/netdevice.h>
@@ -1396,6 +1397,7 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) 
	int rc, index;

	int cstat, dstat;



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

	if (lcs_check_irb_error(cdev, irb))

		return;