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->npa = NULL;
  33         idev->npa_pf_func = 0;
  34         idev->max_pools = 128;
  35         idev->lmt_pf_func = 0;
  36         idev->lmt_base_addr = 0;
  37         idev->num_lmtlines = 0;
  38         __atomic_store_n(&idev->npa_refcnt, 0, __ATOMIC_RELEASE);
  39 }
  40
  41 uint16_t
  42 idev_npa_pffunc_get(void)
  43 {
  44         struct idev_cfg *idev;
  45         uint16_t npa_pf_func;
  46
  47         idev = idev_get_cfg();
  48         npa_pf_func = 0;
  49         if (idev != NULL)
  50                 npa_pf_func = idev->npa_pf_func;
  51
  52         return npa_pf_func;
  53 }
  54
  55 struct npa_lf *
  56 idev_npa_obj_get(void)
  57 {
  58         struct idev_cfg *idev;
  59
  60         idev = idev_get_cfg();
  61         if (idev && __atomic_load_n(&idev->npa_refcnt, __ATOMIC_ACQUIRE))
  62                 return idev->npa;
  63
  64         return NULL;
  65 }
  66
  67 uint32_t
  68 roc_idev_npa_maxpools_get(void)
  69 {
  70         struct idev_cfg *idev;
  71         uint32_t max_pools;
  72
  73         idev = idev_get_cfg();
  74         max_pools = 0;
  75         if (idev != NULL)
  76                 max_pools = idev->max_pools;
  77
  78         return max_pools;
  79 }
  80
  81 void
  82 roc_idev_npa_maxpools_set(uint32_t max_pools)
  83 {
  84         struct idev_cfg *idev;
  85
  86         idev = idev_get_cfg();
  87         if (idev != NULL)
  88                 __atomic_store_n(&idev->max_pools, max_pools, __ATOMIC_RELEASE);
  89 }
  90
  91 uint16_t
  92 idev_npa_lf_active(struct dev *dev)
  93 {
  94         struct idev_cfg *idev;
  95
  96         /* Check if npalf is actively used on this dev */
  97         idev = idev_get_cfg();
  98         if (!idev || !idev->npa || idev->npa->mbox != dev->mbox)
  99                 return 0;
 100
 101         return __atomic_load_n(&idev->npa_refcnt, __ATOMIC_ACQUIRE);
 102 }
 103
 104 uint16_t
 105 idev_lmt_pffunc_get(void)
 106 {
 107         struct idev_cfg *idev;
 108         uint16_t lmt_pf_func;
 109
 110         idev = idev_get_cfg();
 111         lmt_pf_func = 0;
 112         if (idev != NULL)
 113                 lmt_pf_func = idev->lmt_pf_func;
 114
 115         return lmt_pf_func;
 116 }
 117
 118 uint64_t
 119 roc_idev_lmt_base_addr_get(void)
 120 {
 121         uint64_t lmt_base_addr;
 122         struct idev_cfg *idev;
 123
 124         idev = idev_get_cfg();
 125         lmt_base_addr = 0;
 126         if (idev != NULL)
 127                 lmt_base_addr = idev->lmt_base_addr;
 128
 129         return lmt_base_addr;
 130 }
 131
 132 uint16_t
 133 roc_idev_num_lmtlines_get(void)
 134 {
 135         struct idev_cfg *idev;
 136         uint16_t num_lmtlines;
 137
 138         idev = idev_get_cfg();
 139         num_lmtlines = 0;
 140         if (idev != NULL)
 141                 num_lmtlines = idev->num_lmtlines;
 142
 143         return num_lmtlines;
 144 }
 145
 146 struct roc_nix *
 147 roc_idev_npa_nix_get(void)
 148 {
 149         struct npa_lf *npa_lf = idev_npa_obj_get();
 150         struct dev *dev;
 151
 152         if (!npa_lf)
 153                 return NULL;
 154
 155         dev = container_of(npa_lf, struct dev, npa);
 156         return dev->roc_nix;
 157 }