From 8a7206a89f85c8439561b0eff85bb9440a2e97a9 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Mon, 3 Feb 2014 12:42:45 -0800 Subject: [PATCH] Drivers: hv: vmbus: Support per-channel driver state 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 Signed-off-by: Greg Kroah-Hartman --- include/linux/hyperv.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 9b07e1f070ac..d47bab9e7a18 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -727,6 +727,10 @@ 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) @@ -734,6 +738,16 @@ 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);