From 30d77c3e1cbdff304b16ae02cb56baaa308e42fd Mon Sep 17 00:00:00 2001
From: Jan Glauber <jang@linux.vnet.ibm.com>
Date: Wed, 5 Jan 2011 12:47:29 +0100
Subject: [PATCH] [S390] qdio: add qdio interrupts to interrupt statistics

Count traditional qdio interrupts and adapter interrupts for qdio
in the interrupt statistics.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/irq.h     | 2 ++
 arch/s390/kernel/irq.c          | 2 ++
 drivers/s390/cio/qdio_main.c    | 2 ++
 drivers/s390/cio/qdio_thinint.c | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index f65faf63ab3a..28cfe5905a00 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -15,6 +15,8 @@ enum interruption_class {
 	EXTINT_VRT,
 	EXTINT_SCP,
 	EXTINT_IUC,
+	IOINT_QAI,
+	IOINT_QDI,
 	NMI_NMI,
 	NR_IRQS,
 };
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 9bd049b8f997..61d8098aa0b6 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -32,6 +32,8 @@ static const struct irq_class intrclass_names[] = {
 	{.name = "VRT", .desc = "[EXT] Virtio" },
 	{.name = "SCP", .desc = "[EXT] Service Call" },
 	{.name = "IUC", .desc = "[EXT] IUCV" },
+	{.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt" },
+	{.name = "QDI", .desc = "[I/O] QDIO Interrupt" },
 	{.name = "NMI", .desc = "[NMI] Machine Check" },
 };
 
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 5fcfa7f9e9ef..194ea8c182b2 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -14,6 +14,7 @@
 #include <linux/timer.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
+#include <linux/kernel_stat.h>
 #include <asm/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
@@ -970,6 +971,7 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
 		return;
 	}
 
+	kstat_cpu(smp_processor_id()).irqs[IOINT_QDI]++;
 	if (irq_ptr->perf_stat_enabled)
 		irq_ptr->perf_stat.qdio_int++;
 
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 5d9c66627b6e..64b59a58a1cd 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -8,6 +8,7 @@
  */
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/kernel_stat.h>
 #include <asm/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
@@ -127,6 +128,7 @@ static void tiqdio_thinint_handler(void *alsi, void *data)
 	struct qdio_q *q;
 
 	last_ai_time = S390_lowcore.int_clock;
+	kstat_cpu(smp_processor_id()).irqs[IOINT_QAI]++;
 
 	/*
 	 * SVS only when needed: issue SVS to benefit from iqdio interrupt
-- 
2.20.1