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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 <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
K. Y. Srinivasan 2014-02-03 12:42:45 -08:00 committed by Greg Kroah-Hartman
parent 011a7c3cc3
commit 8a7206a89f
1 changed files with 14 additions and 0 deletions
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14
include/linux/hyperv.h
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@ -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);