[S390] vmur: add support for irq statistics
Add support for VMUR 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>
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@ -21,6 +21,7 @@ enum interruption_class {
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IOINT_C15,
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IOINT_C70,
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IOINT_TAP,
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IOINT_VMR,
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NMI_NMI,
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NR_IRQS,
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};
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@ -38,6 +38,7 @@ static const struct irq_class intrclass_names[] = {
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{.name = "C15", .desc = "[I/O] 3215" },
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{.name = "C70", .desc = "[I/O] 3270" },
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{.name = "TAP", .desc = "[I/O] Tape" },
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{.name = "VMR", .desc = "[I/O] Unit Record Devices" },
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{.name = "NMI", .desc = "[NMI] Machine Check" },
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};
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@ -11,6 +11,7 @@
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#define KMSG_COMPONENT "vmur"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/kernel_stat.h>
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#include <linux/cdev.h>
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#include <linux/slab.h>
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@ -302,6 +303,7 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm,
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{
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struct urdev *urd;
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kstat_cpu(smp_processor_id()).irqs[IOINT_VMR]++;
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TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n",
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intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
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irb->scsw.cmd.count);
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