drivers/crypto/hisilicon/hpre/hpre.h

   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 <linux/hisi_acc_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         HPRE_CLUSTERS_NUM_MAX
  27 };
  28
  29 enum hpre_ctrl_dbgfs_file {
  30         HPRE_CLEAR_ENABLE,
  31         HPRE_CLUSTER_CTRL,
  32         HPRE_DEBUG_FILE_NUM,
  33 };
  34
  35 enum hpre_dfx_dbgfs_file {
  36         HPRE_SEND_CNT,
  37         HPRE_RECV_CNT,
  38         HPRE_SEND_FAIL_CNT,
  39         HPRE_SEND_BUSY_CNT,
  40         HPRE_OVER_THRHLD_CNT,
  41         HPRE_OVERTIME_THRHLD,
  42         HPRE_INVALID_REQ_CNT,
  43         HPRE_DFX_FILE_NUM
  44 };
  45
  46 #define HPRE_DEBUGFS_FILE_NUM (HPRE_DEBUG_FILE_NUM + HPRE_CLUSTERS_NUM_MAX - 1)
  47
  48 struct hpre_debugfs_file {
  49         int index;
  50         enum hpre_ctrl_dbgfs_file type;
  51         spinlock_t lock;
  52         struct hpre_debug *debug;
  53 };
  54
  55 struct hpre_dfx {
  56         atomic64_t value;
  57         enum hpre_dfx_dbgfs_file type;
  58 };
  59
  60 /*
  61  * One HPRE controller has one PF and multiple VFs, some global configurations
  62  * which PF has need this structure.
  63  * Just relevant for PF.
  64  */
  65 struct hpre_debug {
  66         struct hpre_dfx dfx[HPRE_DFX_FILE_NUM];
  67         struct hpre_debugfs_file files[HPRE_DEBUGFS_FILE_NUM];
  68 };
  69
  70 struct hpre {
  71         struct hisi_qm qm;
  72         struct hpre_debug debug;
  73         unsigned long status;
  74 };
  75
  76 enum hpre_alg_type {
  77         HPRE_ALG_NC_NCRT = 0x0,
  78         HPRE_ALG_NC_CRT = 0x1,
  79         HPRE_ALG_KG_STD = 0x2,
  80         HPRE_ALG_KG_CRT = 0x3,
  81         HPRE_ALG_DH_G2 = 0x4,
  82         HPRE_ALG_DH = 0x5,
  83         HPRE_ALG_ECC_MUL = 0xD,
  84         /* shared by x25519 and x448, but x448 is not supported now */
  85         HPRE_ALG_CURVE25519_MUL = 0x10,
  86 };
  87
  88 struct hpre_sqe {
  89         __le32 dw0;
  90         __u8 task_len1;
  91         __u8 task_len2;
  92         __u8 mrttest_num;
  93         __u8 resv1;
  94         __le64 key;
  95         __le64 in;
  96         __le64 out;
  97         __le16 tag;
  98         __le16 resv2;
  99 #define _HPRE_SQE_ALIGN_EXT     7
 100         __le32 rsvd1[_HPRE_SQE_ALIGN_EXT];
 101 };
 102
 103 struct hisi_qp *hpre_create_qp(u8 type);
 104 int hpre_algs_register(struct hisi_qm *qm);
 105 void hpre_algs_unregister(struct hisi_qm *qm);
 106 bool hpre_check_alg_support(struct hisi_qm *qm, u32 alg);
 107 #endif