1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019 HiSilicon Limited. */
3 #ifndef __HISI_HPRE_H
4 #define __HISI_HPRE_H
5 
6 #include <linux/list.h>
7 #include "../qm.h"
8 
9 #define HPRE_SQE_SIZE			sizeof(struct hpre_sqe)
10 #define HPRE_PF_DEF_Q_NUM		64
11 #define HPRE_PF_DEF_Q_BASE		0
12 
13 /*
14  * type used in qm sqc DW6.
15  * 0 - Algorithm which has been supported in V2, like RSA, DH and so on;
16  * 1 - ECC algorithm in V3.
17  */
18 #define HPRE_V2_ALG_TYPE	0
19 #define HPRE_V3_ECC_ALG_TYPE	1
20 
21 enum {
22 	HPRE_CLUSTER0,
23 	HPRE_CLUSTER1,
24 	HPRE_CLUSTER2,
25 	HPRE_CLUSTER3
26 };
27 
28 enum hpre_ctrl_dbgfs_file {
29 	HPRE_CLEAR_ENABLE,
30 	HPRE_CLUSTER_CTRL,
31 	HPRE_DEBUG_FILE_NUM,
32 };
33 
34 enum hpre_dfx_dbgfs_file {
35 	HPRE_SEND_CNT,
36 	HPRE_RECV_CNT,
37 	HPRE_SEND_FAIL_CNT,
38 	HPRE_SEND_BUSY_CNT,
39 	HPRE_OVER_THRHLD_CNT,
40 	HPRE_OVERTIME_THRHLD,
41 	HPRE_INVALID_REQ_CNT,
42 	HPRE_DFX_FILE_NUM
43 };
44 
45 #define HPRE_CLUSTERS_NUM_V2		(HPRE_CLUSTER3 + 1)
46 #define HPRE_CLUSTERS_NUM_V3		1
47 #define HPRE_CLUSTERS_NUM_MAX		HPRE_CLUSTERS_NUM_V2
48 #define HPRE_DEBUGFS_FILE_NUM (HPRE_DEBUG_FILE_NUM + HPRE_CLUSTERS_NUM_MAX - 1)
49 
50 struct hpre_debugfs_file {
51 	int index;
52 	enum hpre_ctrl_dbgfs_file type;
53 	spinlock_t lock;
54 	struct hpre_debug *debug;
55 };
56 
57 struct hpre_dfx {
58 	atomic64_t value;
59 	enum hpre_dfx_dbgfs_file type;
60 };
61 
62 /*
63  * One HPRE controller has one PF and multiple VFs, some global configurations
64  * which PF has need this structure.
65  * Just relevant for PF.
66  */
67 struct hpre_debug {
68 	struct hpre_dfx dfx[HPRE_DFX_FILE_NUM];
69 	struct hpre_debugfs_file files[HPRE_DEBUGFS_FILE_NUM];
70 };
71 
72 struct hpre {
73 	struct hisi_qm qm;
74 	struct hpre_debug debug;
75 	unsigned long status;
76 };
77 
78 enum hpre_alg_type {
79 	HPRE_ALG_NC_NCRT = 0x0,
80 	HPRE_ALG_NC_CRT = 0x1,
81 	HPRE_ALG_KG_STD = 0x2,
82 	HPRE_ALG_KG_CRT = 0x3,
83 	HPRE_ALG_DH_G2 = 0x4,
84 	HPRE_ALG_DH = 0x5,
85 	HPRE_ALG_ECC_MUL = 0xD,
86 	/* shared by x25519 and x448, but x448 is not supported now */
87 	HPRE_ALG_CURVE25519_MUL = 0x10,
88 };
89 
90 struct hpre_sqe {
91 	__le32 dw0;
92 	__u8 task_len1;
93 	__u8 task_len2;
94 	__u8 mrttest_num;
95 	__u8 resv1;
96 	__le64 key;
97 	__le64 in;
98 	__le64 out;
99 	__le16 tag;
100 	__le16 resv2;
101 #define _HPRE_SQE_ALIGN_EXT	7
102 	__le32 rsvd1[_HPRE_SQE_ALIGN_EXT];
103 };
104 
105 struct hisi_qp *hpre_create_qp(u8 type);
106 int hpre_algs_register(struct hisi_qm *qm);
107 void hpre_algs_unregister(struct hisi_qm *qm);
108 
109 #endif
110