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

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When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Hemminger 2017-10-29 11:33:40 -07:00 • committed by Greg Kroah-Hartman
parent 6fbf248a20
commit 6981fbf378
4 changed files with 42 additions and 6 deletions
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4
include/linux/hyperv.h
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@ -719,6 +719,10 @@ struct vmbus_channel {
struct vmbus_close_msg close_msg;
/* Statistics */
u64 interrupts; /* Host to Guest interrupts */
u64 sig_events; /* Guest to Host events */
/* Channel callback's invoked in softirq context */
struct tasklet_struct callback_event;
void (*onchannel_callback)(void *context);