drivers/net/bnxt/tf_core/tf_em.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _TF_EM_H_
   7 #define _TF_EM_H_
   8
   9 #include "tf_core.h"
  10 #include "tf_session.h"
  11
  12 #define TF_HW_EM_KEY_MAX_SIZE 52
  13 #define TF_EM_KEY_RECORD_SIZE 64
  14
  15 /** EEM Entry header
  16  *
  17  */
  18 struct tf_eem_entry_hdr {
  19         uint32_t pointer;
  20         uint32_t word1;  /*
  21                           * The header is made up of two words,
  22                           * this is the first word. This field has multiple
  23                           * subfields, there is no suitable single name for
  24                           * it so just going with word1.
  25                           */
  26 #define TF_LKUP_RECORD_VALID_SHIFT 31
  27 #define TF_LKUP_RECORD_VALID_MASK 0x80000000
  28 #define TF_LKUP_RECORD_L1_CACHEABLE_SHIFT 30
  29 #define TF_LKUP_RECORD_L1_CACHEABLE_MASK 0x40000000
  30 #define TF_LKUP_RECORD_STRENGTH_SHIFT 28
  31 #define TF_LKUP_RECORD_STRENGTH_MASK 0x30000000
  32 #define TF_LKUP_RECORD_RESERVED_SHIFT 17
  33 #define TF_LKUP_RECORD_RESERVED_MASK 0x0FFE0000
  34 #define TF_LKUP_RECORD_KEY_SIZE_SHIFT 8
  35 #define TF_LKUP_RECORD_KEY_SIZE_MASK 0x0001FF00
  36 #define TF_LKUP_RECORD_ACT_REC_SIZE_SHIFT 3
  37 #define TF_LKUP_RECORD_ACT_REC_SIZE_MASK 0x000000F8
  38 #define TF_LKUP_RECORD_ACT_REC_INT_SHIFT 2
  39 #define TF_LKUP_RECORD_ACT_REC_INT_MASK 0x00000004
  40 #define TF_LKUP_RECORD_EXT_FLOW_CTR_SHIFT 1
  41 #define TF_LKUP_RECORD_EXT_FLOW_CTR_MASK 0x00000002
  42 #define TF_LKUP_RECORD_ACT_PTR_MSB_SHIFT 0
  43 #define TF_LKUP_RECORD_ACT_PTR_MSB_MASK 0x00000001
  44 };
  45
  46 /** EEM Entry
  47  *  Each EEM entry is 512-bit (64-bytes)
  48  */
  49 struct tf_eem_64b_entry {
  50         /** Key is 448 bits - 56 bytes */
  51         uint8_t key[TF_EM_KEY_RECORD_SIZE - sizeof(struct tf_eem_entry_hdr)];
  52         /** Header is 8 bytes long */
  53         struct tf_eem_entry_hdr hdr;
  54 };
  55
  56 /**
  57  * Allocates EEM Table scope
  58  *
  59  * [in] tfp
  60  *   Pointer to TruFlow handle
  61  *
  62  * [in] parms
  63  *   Pointer to input parameters
  64  *
  65  * Returns:
  66  *   0       - Success
  67  *   -EINVAL - Parameter error
  68  *   -ENOMEM - Out of memory
  69  */
  70 int tf_alloc_eem_tbl_scope(struct tf *tfp,
  71                            struct tf_alloc_tbl_scope_parms *parms);
  72
  73 /**
  74  * Free's EEM Table scope control block
  75  *
  76  * [in] tfp
  77  *   Pointer to TruFlow handle
  78  *
  79  * [in] parms
  80  *   Pointer to input parameters
  81  *
  82  * Returns:
  83  *   0       - Success
  84  *   -EINVAL - Parameter error
  85  */
  86 int tf_free_eem_tbl_scope_cb(struct tf *tfp,
  87                              struct tf_free_tbl_scope_parms *parms);
  88
  89 /**
  90  * Function to search for table scope control block structure
  91  * with specified table scope ID.
  92  *
  93  * [in] session
  94  *   Session to use for the search of the table scope control block
  95  * [in] tbl_scope_id
  96  *   Table scope ID to search for
  97  *
  98  * Returns:
  99  *  Pointer to the found table scope control block struct or NULL if
 100  *  table scope control block struct not found
 101  */
 102 struct tf_tbl_scope_cb *tbl_scope_cb_find(struct tf_session *session,
 103                                           uint32_t tbl_scope_id);
 104
 105 int tf_insert_eem_entry(struct tf_session *session,
 106                         struct tf_tbl_scope_cb *tbl_scope_cb,
 107                         struct tf_insert_em_entry_parms *parms);
 108
 109 int tf_delete_eem_entry(struct tf *tfp,
 110                         struct tf_delete_em_entry_parms *parms);
 111
 112 void *tf_em_get_table_page(struct tf_tbl_scope_cb *tbl_scope_cb,
 113                            enum tf_dir dir,
 114                            uint32_t offset,
 115                            enum tf_em_table_type table_type);
 116
 117 #endif /* _TF_EM_H_ */