Drivers: hv: vmbus: Expose per-channel interrupts and events counters

[linux-2.6-microblaze.git] / drivers / hv / vmbus_drv.c

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 1da8e81..bca8188 100644 (file)
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -944,6 +944,8 @@ static void vmbus_chan_sched(struct hv_per_cpu_context *hv_cpu)
                        if (channel->rescind)
                                continue;
 
+                       ++channel->interrupts;
+
                        switch (channel->callback_mode) {
                        case HV_CALL_ISR:
                                vmbus_channel_isr(channel);
@@ -1237,6 +1239,18 @@ static ssize_t channel_latency_show(const struct vmbus_channel *channel,
 }
 VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL);
 
+static ssize_t channel_interrupts_show(const struct vmbus_channel *channel, char *buf)
+{
+       return sprintf(buf, "%llu\n", channel->interrupts);
+}
+VMBUS_CHAN_ATTR(interrupts, S_IRUGO, channel_interrupts_show, NULL);
+
+static ssize_t channel_events_show(const struct vmbus_channel *channel, char *buf)
+{
+       return sprintf(buf, "%llu\n", channel->sig_events);
+}
+VMBUS_CHAN_ATTR(events, S_IRUGO, channel_events_show, NULL);
+
 static struct attribute *vmbus_chan_attrs[] = {
        &chan_attr_out_mask.attr,
        &chan_attr_in_mask.attr,
@@ -1245,6 +1259,8 @@ static struct attribute *vmbus_chan_attrs[] = {
        &chan_attr_cpu.attr,
        &chan_attr_pending.attr,
        &chan_attr_latency.attr,
+       &chan_attr_interrupts.attr,
+       &chan_attr_events.attr,
        NULL
 };