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