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