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authorHeiko Carstens <heiko.carstens@de.ibm.com>2011-01-05 12:47:35 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-01-05 12:47:26 +0100
commit096a61682e86090e4e74118ff6fa6858ca73aa58 (patch)
treef768604168b1d55aae0351f70f94c5089444b09f
parentf48198d592b0d680b9677bd69edd2290cd0c1f4f (diff)
downloadlinux-linaro-android-096a61682e86090e4e74118ff6fa6858ca73aa58.tar.gz
[S390] lcs: add support for irq statistics
Add support for LCS 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/lcs.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 6c9b55681ea..6a455b8ea18 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -22,6 +22,7 @@ enum interruption_class {
IOINT_C70,
IOINT_TAP,
IOINT_VMR,
+ IOINT_LCS,
NMI_NMI,
NR_IRQS,
};
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index ae726d1ae43..4c6e071b7f9 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -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" },
};
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 0f19d540b65..0bf70894431 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -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;