drivers/common/cnxk/roc_idev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "roc_api.h"
   6 #include "roc_priv.h"
   7
   8 struct idev_cfg *
   9 idev_get_cfg(void)
  10 {
  11         static const char name[] = "roc_cn10k_intra_device_conf";
  12         const struct plt_memzone *mz;
  13         struct idev_cfg *idev;
  14
  15         mz = plt_memzone_lookup(name);
  16         if (mz != NULL)
  17                 return mz->addr;
  18
  19         /* Request for the first time */
  20         mz = plt_memzone_reserve_cache_align(name, sizeof(struct idev_cfg));
  21         if (mz != NULL) {
  22                 idev = mz->addr;
  23                 idev_set_defaults(idev);
  24                 return idev;
  25         }
  26         return NULL;
  27 }
  28
  29 void
  30 idev_set_defaults(struct idev_cfg *idev)
  31 {
  32         idev->sso_pf_func = 0;
  33         idev->npa = NULL;
  34         idev->npa_pf_func = 0;
  35         idev->max_pools = 128;
  36         idev->lmt_pf_func = 0;
  37         idev->lmt_base_addr = 0;
  38         idev->num_lmtlines = 0;
  39         __atomic_store_n(&idev->npa_refcnt, 0, __ATOMIC_RELEASE);
  40 }
  41
  42 uint16_t
  43 idev_sso_pffunc_get(void)
  44 {
  45         struct idev_cfg *idev;
  46         uint16_t sso_pf_func;
  47
  48         idev = idev_get_cfg();
  49         sso_pf_func = 0;
  50         if (idev != NULL)
  51                 sso_pf_func = __atomic_load_n(&idev->sso_pf_func,
  52                                               __ATOMIC_ACQUIRE);
  53
  54         return sso_pf_func;
  55 }
  56
  57 void
  58 idev_sso_pffunc_set(uint16_t sso_pf_func)
  59 {
  60         struct idev_cfg *idev;
  61
  62         idev = idev_get_cfg();
  63         if (idev != NULL)
  64                 __atomic_store_n(&idev->sso_pf_func, sso_pf_func,
  65                                  __ATOMIC_RELEASE);
  66 }
  67
  68 uint16_t
  69 idev_npa_pffunc_get(void)
  70 {
  71         struct idev_cfg *idev;
  72         uint16_t npa_pf_func;
  73
  74         idev = idev_get_cfg();
  75         npa_pf_func = 0;
  76         if (idev != NULL)
  77                 npa_pf_func = idev->npa_pf_func;
  78
  79         return npa_pf_func;
  80 }
  81
  82 struct npa_lf *
  83 idev_npa_obj_get(void)
  84 {
  85         struct idev_cfg *idev;
  86
  87         idev = idev_get_cfg();
  88         if (idev && __atomic_load_n(&idev->npa_refcnt, __ATOMIC_ACQUIRE))
  89                 return idev->npa;
  90
  91         return NULL;
  92 }
  93
  94 uint32_t
  95 roc_idev_npa_maxpools_get(void)
  96 {
  97         struct idev_cfg *idev;
  98         uint32_t max_pools;
  99
 100         idev = idev_get_cfg();
 101         max_pools = 0;
 102         if (idev != NULL)
 103                 max_pools = idev->max_pools;
 104
 105         return max_pools;
 106 }
 107
 108 void
 109 roc_idev_npa_maxpools_set(uint32_t max_pools)
 110 {
 111         struct idev_cfg *idev;
 112
 113         idev = idev_get_cfg();
 114         if (idev != NULL)
 115                 __atomic_store_n(&idev->max_pools, max_pools, __ATOMIC_RELEASE);
 116 }
 117
 118 uint16_t
 119 idev_npa_lf_active(struct dev *dev)
 120 {
 121         struct idev_cfg *idev;
 122
 123         /* Check if npalf is actively used on this dev */
 124         idev = idev_get_cfg();
 125         if (!idev || !idev->npa || idev->npa->mbox != dev->mbox)
 126                 return 0;
 127
 128         return __atomic_load_n(&idev->npa_refcnt, __ATOMIC_ACQUIRE);
 129 }
 130
 131 uint16_t
 132 idev_lmt_pffunc_get(void)
 133 {
 134         struct idev_cfg *idev;
 135         uint16_t lmt_pf_func;
 136
 137         idev = idev_get_cfg();
 138         lmt_pf_func = 0;
 139         if (idev != NULL)
 140                 lmt_pf_func = idev->lmt_pf_func;
 141
 142         return lmt_pf_func;
 143 }
 144
 145 uint64_t
 146 roc_idev_lmt_base_addr_get(void)
 147 {
 148         uint64_t lmt_base_addr;
 149         struct idev_cfg *idev;
 150
 151         idev = idev_get_cfg();
 152         lmt_base_addr = 0;
 153         if (idev != NULL)
 154                 lmt_base_addr = idev->lmt_base_addr;
 155
 156         return lmt_base_addr;
 157 }
 158
 159 uint16_t
 160 roc_idev_num_lmtlines_get(void)
 161 {
 162         struct idev_cfg *idev;
 163         uint16_t num_lmtlines;
 164
 165         idev = idev_get_cfg();
 166         num_lmtlines = 0;
 167         if (idev != NULL)
 168                 num_lmtlines = idev->num_lmtlines;
 169
 170         return num_lmtlines;
 171 }
 172
 173 struct roc_nix *
 174 roc_idev_npa_nix_get(void)
 175 {
 176         struct npa_lf *npa_lf = idev_npa_obj_get();
 177         struct dev *dev;
 178
 179         if (!npa_lf)
 180                 return NULL;
 181
 182         dev = container_of(npa_lf, struct dev, npa);
 183         return dev->roc_nix;
 184 }