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Drivers: hv: vmbus: Suport an API to send pagebuffers with additional control

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Implement an API for sending pagebuffers that gives more control to the client
in terms of setting the vmbus flags as well as deciding when to
notify the host. This will be useful for enabling batch processing.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2015-02-28 11:39:03 -08:00 • committed by Greg Kroah-Hartman
commit 87e93d6170
2 changed files with 36 additions and 6 deletions
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9
include/linux/hyperv.h
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@ -874,6 +874,15 @@ extern int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel,
u32 bufferlen,
u64 requestid);
extern int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
struct hv_page_buffer pagebuffers[],
u32 pagecount,
void *buffer,
u32 bufferlen,
u64 requestid,
u32 flags,
bool kick_q);
extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
struct hv_multipage_buffer *mpb,
void *buffer,