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Drivers: hv: vmbus: define a new VMBus message type for hvsock

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A function to send the type of message is also added.

The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.

Signed-off-by: Dexuan Cui <[email protected]>
Signed-off-by: K. Y. Srinivasan <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Dexuan Cui 2016-01-27 22:29:40 -08:00 • committed by Greg Kroah-Hartman
commit 5c23a1a5c6
3 changed files with 32 additions and 0 deletions
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15
drivers/hv/channel.c
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@ -219,6 +219,21 @@ error0:
}
EXPORT_SYMBOL_GPL(vmbus_open);
/* Used for Hyper-V Socket: a guest client's connect() to the host */
int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
const uuid_le *shv_host_servie_id)
{
struct vmbus_channel_tl_connect_request conn_msg;
memset(&conn_msg, 0, sizeof(conn_msg));
conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;
conn_msg.guest_endpoint_id = *shv_guest_servie_id;
conn_msg.host_service_id = *shv_host_servie_id;
return vmbus_post_msg(&conn_msg, sizeof(conn_msg));
}
EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
/*
* create_gpadl_header - Creates a gpadl for the specified buffer
*/

4
drivers/hv/channel_mgmt.c
View file

@ -958,6 +958,10 @@ struct vmbus_channel_message_table_entry
{CHANNELMSG_VERSION_RESPONSE, 1, vmbus_onversion_response},
{CHANNELMSG_UNLOAD, 0, NULL},
{CHANNELMSG_UNLOAD_RESPONSE, 1, vmbus_unload_response},
{CHANNELMSG_18, 0, NULL},
{CHANNELMSG_19, 0, NULL},
{CHANNELMSG_20, 0, NULL},
{CHANNELMSG_TL_CONNECT_REQUEST, 0, NULL},
};
/*