[S390] qdio: add qdio interrupts to interrupt statistics
Jan Glauber [Wed, 5 Jan 2011 11:47:29 +0000 (12:47 +0100)]
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
arch/s390/kernel/irq.c
drivers/s390/cio/qdio_main.c
drivers/s390/cio/qdio_thinint.c

index f65faf6..28cfe59 100644 (file)
@@ -15,6 +15,8 @@ enum interruption_class {
        EXTINT_VRT,
        EXTINT_SCP,
        EXTINT_IUC,
+       IOINT_QAI,
+       IOINT_QDI,
        NMI_NMI,
        NR_IRQS,
 };
index 9bd049b..61d8098 100644 (file)
@@ -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" },
 };
 
index 5fcfa7f..194ea8c 100644 (file)
@@ -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++;
 
index 5d9c666..64b59a5 100644 (file)
@@ -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