1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2023 Google LLC 5 * 6 * Redistribution and use in source and binary forms, with or without modification, 7 * are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this 10 * list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * 3. Neither the name of the copyright holder nor the names of its contributors 17 * may be used to endorse or promote products derived from this software without 18 * specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 27 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #ifndef _GVE_REGISTER_H_ 32 #define _GVE_REGISTER_H_ 33 34 /* Fixed Configuration Registers */ 35 #define DEVICE_STATUS 0 36 #define DRIVER_STATUS 4 37 #define MAX_TX_QUEUES 8 38 #define MAX_RX_QUEUES 12 39 #define ADMINQ_PFN 16 40 #define ADMINQ_DOORBELL 20 41 #define ADMINQ_EVENT_COUNTER 24 42 #define RESERVED 28 43 #define DRIVER_VERSION 31 44 #define ADMINQ_BASE_ADDRESS_HI 32 45 #define ADMINQ_BASE_ADDRESS_LO 36 46 #define ADMINQ_LENGTH 40 47 48 49 enum gve_device_status_flags { 50 GVE_DEVICE_STATUS_RESET_MASK = BIT(1), 51 GVE_DEVICE_STATUS_LINK_STATUS_MASK = BIT(2), 52 }; 53 54 #endif /* _GVE_REGISTER_H_ */ 55