drivers/net/bnxt/tf_core/tf_device_p4.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_common.h>
   7 #include <cfa_resource_types.h>
   8
   9 #include "tf_device.h"
  10 #include "tf_identifier.h"
  11 #include "tf_tbl.h"
  12 #include "tf_tcam.h"
  13 #include "tf_em.h"
  14 #include "tf_if_tbl.h"
  15
  16 /**
  17  * Device specific function that retrieves the MAX number of HCAPI
  18  * types the device supports.
  19  *
  20  * [in] tfp
  21  *   Pointer to TF handle
  22  *
  23  * [out] max_types
  24  *   Pointer to the MAX number of HCAPI types supported
  25  *
  26  * Returns
  27  *   - (0) if successful.
  28  *   - (-EINVAL) on failure.
  29  */
  30 static int
  31 tf_dev_p4_get_max_types(struct tf *tfp __rte_unused,
  32                         uint16_t *max_types)
  33 {
  34         if (max_types == NULL)
  35                 return -EINVAL;
  36
  37         *max_types = CFA_RESOURCE_TYPE_P4_LAST + 1;
  38
  39         return 0;
  40 }
  41
  42 /**
  43  * Device specific function that retrieves the WC TCAM slices the
  44  * device supports.
  45  *
  46  * [in] tfp
  47  *   Pointer to TF handle
  48  *
  49  * [out] slice_size
  50  *   Pointer to the WC TCAM slice size
  51  *
  52  * [out] num_slices_per_row
  53  *   Pointer to the WC TCAM row slice configuration
  54  *
  55  * Returns
  56  *   - (0) if successful.
  57  *   - (-EINVAL) on failure.
  58  */
  59 static int
  60 tf_dev_p4_get_tcam_slice_info(struct tf *tfp __rte_unused,
  61                               enum tf_tcam_tbl_type type,
  62                               uint16_t key_sz,
  63                               uint16_t *num_slices_per_row)
  64 {
  65 #define CFA_P4_WC_TCAM_SLICES_PER_ROW 2
  66 #define CFA_P4_WC_TCAM_SLICE_SIZE     12
  67
  68         if (type == TF_TCAM_TBL_TYPE_WC_TCAM) {
  69                 *num_slices_per_row = CFA_P4_WC_TCAM_SLICES_PER_ROW;
  70                 if (key_sz > *num_slices_per_row * CFA_P4_WC_TCAM_SLICE_SIZE)
  71                         return -ENOTSUP;
  72
  73                 *num_slices_per_row = 1;
  74         } else { /* for other type of tcam */
  75                 *num_slices_per_row = 1;
  76         }
  77
  78         return 0;
  79 }
  80
  81 /**
  82  * Truflow P4 device specific functions
  83  */
  84 const struct tf_dev_ops tf_dev_ops_p4_init = {
  85         .tf_dev_get_max_types = tf_dev_p4_get_max_types,
  86         .tf_dev_get_tcam_slice_info = tf_dev_p4_get_tcam_slice_info,
  87         .tf_dev_alloc_ident = NULL,
  88         .tf_dev_free_ident = NULL,
  89         .tf_dev_search_ident = NULL,
  90         .tf_dev_alloc_ext_tbl = NULL,
  91         .tf_dev_alloc_tbl = NULL,
  92         .tf_dev_free_ext_tbl = NULL,
  93         .tf_dev_free_tbl = NULL,
  94         .tf_dev_alloc_search_tbl = NULL,
  95         .tf_dev_set_tbl = NULL,
  96         .tf_dev_set_ext_tbl = NULL,
  97         .tf_dev_get_tbl = NULL,
  98         .tf_dev_get_bulk_tbl = NULL,
  99         .tf_dev_alloc_tcam = NULL,
 100         .tf_dev_free_tcam = NULL,
 101         .tf_dev_alloc_search_tcam = NULL,
 102         .tf_dev_set_tcam = NULL,
 103         .tf_dev_get_tcam = NULL,
 104         .tf_dev_insert_int_em_entry = NULL,
 105         .tf_dev_delete_int_em_entry = NULL,
 106         .tf_dev_insert_ext_em_entry = NULL,
 107         .tf_dev_delete_ext_em_entry = NULL,
 108         .tf_dev_alloc_tbl_scope = NULL,
 109         .tf_dev_free_tbl_scope = NULL,
 110         .tf_dev_set_if_tbl = NULL,
 111         .tf_dev_get_if_tbl = NULL,
 112         .tf_dev_set_global_cfg = NULL,
 113         .tf_dev_get_global_cfg = NULL,
 114 };
 115
 116 /**
 117  * Truflow P4 device specific functions
 118  */
 119 const struct tf_dev_ops tf_dev_ops_p4 = {
 120         .tf_dev_get_max_types = tf_dev_p4_get_max_types,
 121         .tf_dev_get_tcam_slice_info = tf_dev_p4_get_tcam_slice_info,
 122         .tf_dev_alloc_ident = tf_ident_alloc,
 123         .tf_dev_free_ident = tf_ident_free,
 124         .tf_dev_search_ident = tf_ident_search,
 125         .tf_dev_alloc_tbl = tf_tbl_alloc,
 126         .tf_dev_alloc_ext_tbl = tf_tbl_ext_alloc,
 127         .tf_dev_free_tbl = tf_tbl_free,
 128         .tf_dev_free_ext_tbl = tf_tbl_ext_free,
 129         .tf_dev_alloc_search_tbl = tf_tbl_alloc_search,
 130         .tf_dev_set_tbl = tf_tbl_set,
 131         .tf_dev_set_ext_tbl = tf_tbl_ext_common_set,
 132         .tf_dev_get_tbl = tf_tbl_get,
 133         .tf_dev_get_bulk_tbl = tf_tbl_bulk_get,
 134         .tf_dev_alloc_tcam = tf_tcam_alloc,
 135         .tf_dev_free_tcam = tf_tcam_free,
 136         .tf_dev_alloc_search_tcam = tf_tcam_alloc_search,
 137         .tf_dev_set_tcam = tf_tcam_set,
 138         .tf_dev_get_tcam = NULL,
 139         .tf_dev_insert_int_em_entry = tf_em_insert_int_entry,
 140         .tf_dev_delete_int_em_entry = tf_em_delete_int_entry,
 141         .tf_dev_insert_ext_em_entry = tf_em_insert_ext_entry,
 142         .tf_dev_delete_ext_em_entry = tf_em_delete_ext_entry,
 143         .tf_dev_alloc_tbl_scope = tf_em_ext_common_alloc,
 144         .tf_dev_free_tbl_scope = tf_em_ext_common_free,
 145         .tf_dev_set_if_tbl = tf_if_tbl_set,
 146         .tf_dev_get_if_tbl = tf_if_tbl_get,
 147         .tf_dev_set_global_cfg = tf_global_cfg_set,
 148         .tf_dev_get_global_cfg = tf_global_cfg_get,
 149 };