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Drivers: hv: vmbus: Introduce vmbus_sendpacket_getid()

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The function can be used to send a VMbus packet and retrieve the
corresponding transaction ID.  It will be used by hv_pci.

No functional change.

Suggested-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220419122325.10078-4-parri.andrea@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This commit is contained in:
Andrea Parri (Microsoft)
2022-04-19 14:23:22 +02:00
committed by Wei Liu
parent de5ddb7d44
commit b03afa57c6
4 changed files with 51 additions and 10 deletions
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7
include/linux/hyperv.h
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@@ -1161,6 +1161,13 @@ extern int vmbus_open(struct vmbus_channel *channel,
extern void vmbus_close(struct vmbus_channel *channel);
extern int vmbus_sendpacket_getid(struct vmbus_channel *channel,
void *buffer,
u32 bufferLen,
u64 requestid,
u64 *trans_id,
enum vmbus_packet_type type,
u32 flags);
extern int vmbus_sendpacket(struct vmbus_channel *channel,
void *buffer,
u32 bufferLen,