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_type.h"
  12 #include "tf_tcam.h"
  13
  14 /**
  15  * Device specific function that retrieves the MAX number of HCAPI
  16  * types the device supports.
  17  *
  18  * [in] tfp
  19  *   Pointer to TF handle
  20  *
  21  * [out] max_types
  22  *   Pointer to the MAX number of HCAPI types supported
  23  *
  24  * Returns
  25  *   - (0) if successful.
  26  *   - (-EINVAL) on failure.
  27  */
  28 static int
  29 tf_dev_p4_get_max_types(struct tf *tfp __rte_unused,
  30                         uint16_t *max_types)
  31 {
  32         if (max_types == NULL)
  33                 return -EINVAL;
  34
  35         *max_types = CFA_RESOURCE_TYPE_P4_LAST + 1;
  36
  37         return 0;
  38 }
  39
  40 /**
  41  * Device specific function that retrieves the WC TCAM slices the
  42  * device supports.
  43  *
  44  * [in] tfp
  45  *   Pointer to TF handle
  46  *
  47  * [out] slice_size
  48  *   Pointer to the WC TCAM slice size
  49  *
  50  * [out] num_slices_per_row
  51  *   Pointer to the WC TCAM row slice configuration
  52  *
  53  * Returns
  54  *   - (0) if successful.
  55  *   - (-EINVAL) on failure.
  56  */
  57 static int
  58 tf_dev_p4_get_wc_tcam_slices(struct tf *tfp __rte_unused,
  59                              uint16_t *slice_size,
  60                              uint16_t *num_slices_per_row)
  61 {
  62 #define CFA_P4_WC_TCAM_SLICE_SIZE       12
  63 #define CFA_P4_WC_TCAM_SLICES_PER_ROW    2
  64
  65         if (slice_size == NULL || num_slices_per_row == NULL)
  66                 return -EINVAL;
  67
  68         *slice_size = CFA_P4_WC_TCAM_SLICE_SIZE;
  69         *num_slices_per_row = CFA_P4_WC_TCAM_SLICES_PER_ROW;
  70
  71         return 0;
  72 }
  73
  74 /**
  75  * Truflow P4 device specific functions
  76  */
  77 const struct tf_dev_ops tf_dev_ops_p4 = {
  78         .tf_dev_get_max_types = tf_dev_p4_get_max_types,
  79         .tf_dev_get_wc_tcam_slices = tf_dev_p4_get_wc_tcam_slices,
  80         .tf_dev_alloc_ident = tf_ident_alloc,
  81         .tf_dev_free_ident = tf_ident_free,
  82         .tf_dev_alloc_tbl = tf_tbl_alloc,
  83         .tf_dev_free_tbl = tf_tbl_free,
  84         .tf_dev_alloc_search_tbl = tf_tbl_alloc_search,
  85         .tf_dev_set_tbl = tf_tbl_set,
  86         .tf_dev_get_tbl = tf_tbl_get,
  87         .tf_dev_alloc_tcam = tf_tcam_alloc,
  88         .tf_dev_free_tcam = tf_tcam_free,
  89         .tf_dev_alloc_search_tcam = tf_tcam_alloc_search,
  90         .tf_dev_set_tcam = tf_tcam_set,
  91         .tf_dev_get_tcam = tf_tcam_get,
  92 };