[S390] ctc: add support for irq statistics
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>
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 2d5943c..8c79f94 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -24,6 +24,7 @@
IOINT_VMR,
IOINT_LCS,
IOINT_CLW,
+ IOINT_CTC,
NMI_NMI,
NR_IRQS,
};
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 406b539..57ed2b5 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -41,6 +41,7 @@
{.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" },
};
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 2c7d2d9..4c28459 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -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 @@
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));
