1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT)
2  * Google virtual Ethernet (gve) driver
3  *
4  * Copyright (C) 2015-2019 Google, Inc.
5  */
6 
7 #ifndef _GVE_REGISTER_H_
8 #define _GVE_REGISTER_H_
9 
10 /* Fixed Configuration Registers */
11 struct gve_registers {
12 	__be32	device_status;
13 	__be32	driver_status;
14 	__be32	max_tx_queues;
15 	__be32	max_rx_queues;
16 	__be32	adminq_pfn;
17 	__be32	adminq_doorbell;
18 	__be32	adminq_event_counter;
19 	u8	reserved[3];
20 	u8	driver_version;
21 	__be32	adminq_base_address_hi;
22 	__be32	adminq_base_address_lo;
23 	__be16	adminq_length;
24 };
25 
26 enum gve_device_status_flags {
27 	GVE_DEVICE_STATUS_RESET_MASK		= BIT(1),
28 	GVE_DEVICE_STATUS_LINK_STATUS_MASK	= BIT(2),
29 	GVE_DEVICE_STATUS_REPORT_STATS_MASK	= BIT(3),
30 	GVE_DEVICE_STATUS_DEVICE_IS_RESET	= BIT(4),
31 };
32 
33 enum gve_driver_status_flags {
34 	GVE_DRIVER_STATUS_RUN_MASK		= BIT(0),
35 	GVE_DRIVER_STATUS_RESET_MASK		= BIT(1),
36 };
37 #endif /* _GVE_REGISTER_H_ */
38