[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>
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@ -22,6 +22,7 @@ enum interruption_class {
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IOINT_C70,
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IOINT_TAP,
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IOINT_VMR,
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IOINT_LCS,
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NMI_NMI,
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NR_IRQS,
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};
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@ -39,6 +39,7 @@ static const struct irq_class intrclass_names[] = {
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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 = "LCS", .desc = "[I/O] LCS" },
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{.name = "NMI", .desc = "[NMI] Machine Check" },
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};
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@ -26,6 +26,7 @@
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#define KMSG_COMPONENT "lcs"
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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/module.h>
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#include <linux/if.h>
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#include <linux/netdevice.h>
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@ -1396,6 +1397,7 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
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int rc, index;
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int cstat, dstat;
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kstat_cpu(smp_processor_id()).irqs[IOINT_LCS]++;
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if (lcs_check_irb_error(cdev, irb))
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return;
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