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authorAlexander Usyskin <alexander.usyskin@intel.com>2020-08-18 14:51:37 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-18 15:44:43 +0200
commit2dd1e5ae8c96f1262ce81d0e77225281ae55eb3d (patch)
tree8b617c93b302e7ad436133f7638c8d60b76b4518 /drivers/misc/mei/hw.h
parentbeb4e1e50311eeb65009cded71c02f3826fa314f (diff)
mei: add vtag support bit in client properties
Vtag support is on a client basis, meaning not every client supports it. The vtag capability is communicated via the client properties structure during client enumeration process. Export the propertiy via sysfs. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200818115147.2567012-4-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/hw.h')
-rw-r--r--drivers/misc/mei/hw.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 13e4cb68a0e6..ea0a2e459282 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -314,13 +314,26 @@ struct hbm_host_enum_response {
u8 valid_addresses[32];
} __packed;
+/**
+ * struct mei_client_properties - mei client properties
+ *
+ * @protocol_name: guid of the client
+ * @protocol_version: client protocol version
+ * @max_number_of_connections: number of possible connections.
+ * @fixed_address: fixed me address (0 if the client is dynamic)
+ * @single_recv_buf: 1 if all connections share a single receive buffer.
+ * @vt_supported: the client support vtag
+ * @reserved: reserved
+ * @max_msg_length: MTU of the client
+ */
struct mei_client_properties {
uuid_le protocol_name;
u8 protocol_version;
u8 max_number_of_connections;
u8 fixed_address;
u8 single_recv_buf:1;
- u8 reserved:7;
+ u8 vt_supported:1;
+ u8 reserved:6;
u32 max_msg_length;
} __packed;