As we implement Virtual Receive Side Scaling on the networking side
(the VRSS patches are currently under review), it will be useful to have
per-channel state that vmbus drivers can manage. Add support for
managing per-channel state.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
---
include/linux/hyperv.h | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 15da677..96fb70e 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1043,6 +1043,10 @@ struct vmbus_channel {
* This will be NULL for the primary channel.
*/
struct vmbus_channel *primary_channel;
+ /*
+ * Support per-channel state for use by vmbus drivers.
+ */
+ void *per_channel_state;
};
static inline void set_channel_read_state(struct vmbus_channel *c, bool state)
@@ -1050,6 +1054,16 @@ static inline void set_channel_read_state(struct vmbus_channel *c, bool state)
c->batched_reading = state;
}
+static inline void set_per_channel_state(struct vmbus_channel *c, void *s)
+{
+ c->per_channel_state = s;
+}
+
+static inline void *get_per_channel_state(struct vmbus_channel *c)
+{
+ return c->per_channel_state;
+}
+
void vmbus_onmessage(void *context);
int vmbus_request_offers(void);
--
1.7.4.1
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