drivers/common/cnxk/roc_ae.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "roc_api.h"
   6
   7 #define AE_EC_GRP_TBL_NAME "ae_ec_grp_tbl"
   8
   9 struct ae_ec_grp_tbl {
  10         uint64_t refcount;
  11         uint8_t ec_grp_tbl[];
  12 };
  13
  14 const struct roc_ae_ec_group ae_ec_grp[ROC_AE_EC_ID_PMAX] = {
  15         {
  16                 .prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  17                                    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  18                                    0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF,
  19                                    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
  20                           .length = 24},
  21                 .order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  22                                    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  23                                    0x99, 0xDE, 0xF8, 0x36, 0x14, 0x6B,
  24                                    0xC9, 0xB1, 0xB4, 0xD2, 0x28, 0x31},
  25                           .length = 24},
  26         },
  27         {
  28                 .prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  29                                    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  30                                    0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00,
  31                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
  32                           .length = 28},
  33                 .order = {.data = {0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF,
  34                                    0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF,
  35                                    0X16, 0XA2, 0XE0, 0XB8, 0XF0, 0X3E, 0X13,
  36                                    0XDD, 0X29, 0X45, 0X5C, 0X5C, 0X2A, 0X3D},
  37                           .length = 28},
  38         },
  39         {
  40                 .prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
  41                                    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  42                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF,
  43                                    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  44                                    0xFF, 0xFF, 0xFF, 0xFF},
  45                           .length = 32},
  46                 .order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
  47                                    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  48                                    0xFF, 0xFF, 0xBC, 0xE6, 0xFA, 0xAD, 0xA7,
  49                                    0x17, 0x9E, 0x84, 0xF3, 0xB9, 0xCA, 0xC2,
  50                                    0xFC, 0x63, 0x25, 0x51},
  51                           .length = 32},
  52         },
  53         {.prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  54                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  55                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  56                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE,
  57                             0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
  58                             0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF},
  59                    .length = 48},
  60          .order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  61                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  62                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  63                             0xC7, 0x63, 0x4D, 0x81, 0xF4, 0x37, 0x2D, 0xDF,
  64                             0x58, 0x1A, 0x0D, 0xB2, 0x48, 0xB0, 0xA7, 0x7A,
  65                             0xEC, 0xEC, 0x19, 0x6A, 0xCC, 0xC5, 0x29, 0x73},
  66                    .length = 48}},
  67         {.prime = {.data = {0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  68                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  69                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  70                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  71                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  72                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  73                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  74                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  75                             0xFF, 0xFF},
  76                    .length = 66},
  77          .order = {.data = {0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  78                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  79                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  80                             0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  81                             0xFF, 0xFA, 0x51, 0x86, 0x87, 0x83, 0xBF, 0x2F,
  82                             0x96, 0x6B, 0x7F, 0xCC, 0x01, 0x48, 0xF7, 0x09,
  83                             0xA5, 0xD0, 0x3B, 0xB5, 0xC9, 0xB8, 0x89, 0x9C,
  84                             0x47, 0xAE, 0xBB, 0x6F, 0xB7, 0x1E, 0x91, 0x38,
  85                             0x64, 0x09},
  86                    .length = 66}}};
  87
  88 int
  89 roc_ae_ec_grp_get(struct roc_ae_ec_group **tbl)
  90 {
  91         const char name[] = AE_EC_GRP_TBL_NAME;
  92         struct ae_ec_grp_tbl *ec_grp;
  93         const struct plt_memzone *mz;
  94         int i, len = 0;
  95         uint8_t *data;
  96
  97         if (tbl == NULL)
  98                 return -EINVAL;
  99
 100         len = sizeof(ae_ec_grp);
 101
 102         mz = plt_memzone_lookup(name);
 103         if (mz == NULL) {
 104                 /* Create memzone first time */
 105                 mz = plt_memzone_reserve_cache_align(
 106                         name, len + sizeof(struct ae_ec_grp_tbl));
 107                 if (mz == NULL)
 108                         return -ENOMEM;
 109         }
 110
 111         ec_grp = mz->addr;
 112
 113         if (__atomic_fetch_add(&ec_grp->refcount, 1, __ATOMIC_SEQ_CST) != 0)
 114                 return 0;
 115
 116         data = PLT_PTR_ADD(mz->addr, sizeof(uint64_t));
 117
 118         for (i = 0; i < ROC_AE_EC_ID_PMAX; i++) {
 119                 memcpy(data, &ae_ec_grp[i], sizeof(struct roc_ae_ec_group));
 120                 tbl[i] = (struct roc_ae_ec_group *)data;
 121                 data += sizeof(struct roc_ae_ec_group);
 122         }
 123
 124         return 0;
 125 }
 126
 127 void
 128 roc_ae_ec_grp_put(void)
 129 {
 130         const char name[] = AE_EC_GRP_TBL_NAME;
 131         const struct plt_memzone *mz;
 132         struct ae_ec_grp_tbl *ec_grp;
 133
 134         mz = plt_memzone_lookup(name);
 135         if (mz == NULL)
 136                 return;
 137
 138         ec_grp = mz->addr;
 139         /* Decrement number of devices using EC grp table */
 140         if (__atomic_sub_fetch(&ec_grp->refcount, 1, __ATOMIC_SEQ_CST) == 0)
 141                 plt_memzone_free(mz);
 142 }