1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Intel MIC Platform Software Stack (MPSS) 4 * 5 * Copyright(c) 2013 Intel Corporation. 6 * 7 * Intel MIC driver. 8 */ 9 #ifndef __MIC_DEV_H__ 10 #define __MIC_DEV_H__ 11 12 /* The maximum number of MIC devices supported in a single host system. */ 13 #define MIC_MAX_NUM_DEVS 128 14 15 /** 16 * enum mic_hw_family - The hardware family to which a device belongs. 17 */ 18 enum mic_hw_family { 19 MIC_FAMILY_X100 = 0, 20 MIC_FAMILY_X200, 21 MIC_FAMILY_UNKNOWN, 22 MIC_FAMILY_LAST 23 }; 24 25 /** 26 * struct mic_mw - MIC memory window 27 * 28 * @pa: Base physical address. 29 * @va: Base ioremap'd virtual address. 30 * @len: Size of the memory window. 31 */ 32 struct mic_mw { 33 phys_addr_t pa; 34 void __iomem *va; 35 resource_size_t len; 36 }; 37 38 /* 39 * Scratch pad register offsets used by the host to communicate 40 * device page DMA address to the card. 41 */ 42 #define MIC_DPLO_SPAD 14 43 #define MIC_DPHI_SPAD 15 44 45 /* 46 * These values are supposed to be in the config_change field of the 47 * device page when the host sends a config change interrupt to the card. 48 */ 49 #define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1 50 #define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2 51 52 /* Maximum number of DMA channels */ 53 #define MIC_MAX_DMA_CHAN 4 54 55 #endif 56