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authorHeiko Carstens <heiko.carstens@de.ibm.com>2011-01-05 12:47:36 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-01-05 12:47:26 +0100
commit355eb4022b92349f70cd69ce5b9572c71c0be226 (patch)
tree638e77a5f8635f234bc1283ce9e1986756dfdd75
parent[S390] lcs: add support for irq statistics (diff)
downloadlinux-355eb4022b92349f70cd69ce5b9572c71c0be226.tar.xz
linux-355eb4022b92349f70cd69ce5b9572c71c0be226.zip
[S390] claw: add support for irq statistics
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>
-rw-r--r--arch/s390/include/asm/irq.h1
-rw-r--r--arch/s390/kernel/irq.c1
-rw-r--r--drivers/s390/net/claw.c2
3 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 6a455b8ea18b..2d5943c1c6a1 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -23,6 +23,7 @@ enum interruption_class {
IOINT_TAP,
IOINT_VMR,
IOINT_LCS,
+ IOINT_CLW,
NMI_NMI,
NR_IRQS,
};
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 4c6e071b7f92..406b539f61a9 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -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" },
};
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index 8e4153d740f3..ce3a5c13ce0b 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -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);