drivers/net/bnxt/tf_core/tf_device_p4.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_common.h>
   7
   8 #include "cfa_resource_types.h"
   9 #include "tf_device.h"
  10 #include "tf_identifier.h"
  11 #include "tf_tbl.h"
  12 #include "tf_tcam.h"
  13 #ifdef TF_TCAM_SHARED
  14 #include "tf_tcam_shared.h"
  15 #endif /* TF_TCAM_SHARED */
  16 #include "tf_em.h"
  17 #include "tf_if_tbl.h"
  18 #include "tfp.h"
  19 #include "tf_msg_common.h"
  20
  21 #define TF_DEV_P4_PARIF_MAX 16
  22 #define TF_DEV_P4_PF_MASK 0xfUL
  23
  24 const char *tf_resource_str_p4[CFA_RESOURCE_TYPE_P4_LAST + 1] = {
  25         [CFA_RESOURCE_TYPE_P4_MCG] = "mc_group",
  26         [CFA_RESOURCE_TYPE_P4_ENCAP_8B] = "encap_8 ",
  27         [CFA_RESOURCE_TYPE_P4_ENCAP_16B] = "encap_16",
  28         [CFA_RESOURCE_TYPE_P4_ENCAP_64B] = "encap_64",
  29         [CFA_RESOURCE_TYPE_P4_SP_MAC] = "sp_mac  ",
  30         [CFA_RESOURCE_TYPE_P4_SP_MAC_IPV4] = "sp_macv4",
  31         [CFA_RESOURCE_TYPE_P4_SP_MAC_IPV6] = "sp_macv6",
  32         [CFA_RESOURCE_TYPE_P4_COUNTER_64B] = "ctr_64b ",
  33         [CFA_RESOURCE_TYPE_P4_NAT_PORT] = "nat_port",
  34         [CFA_RESOURCE_TYPE_P4_NAT_IPV4] = "nat_ipv4",
  35         [CFA_RESOURCE_TYPE_P4_METER] = "meter   ",
  36         [CFA_RESOURCE_TYPE_P4_FLOW_STATE] = "flow_st ",
  37         [CFA_RESOURCE_TYPE_P4_FULL_ACTION] = "full_act",
  38         [CFA_RESOURCE_TYPE_P4_FORMAT_0_ACTION] = "fmt0_act",
  39         [CFA_RESOURCE_TYPE_P4_EXT_FORMAT_0_ACTION] = "ext0_act",
  40         [CFA_RESOURCE_TYPE_P4_FORMAT_1_ACTION] = "fmt1_act",
  41         [CFA_RESOURCE_TYPE_P4_FORMAT_2_ACTION] = "fmt2_act",
  42         [CFA_RESOURCE_TYPE_P4_FORMAT_3_ACTION] = "fmt3_act",
  43         [CFA_RESOURCE_TYPE_P4_FORMAT_4_ACTION] = "fmt4_act",
  44         [CFA_RESOURCE_TYPE_P4_FORMAT_5_ACTION] = "fmt5_act",
  45         [CFA_RESOURCE_TYPE_P4_FORMAT_6_ACTION] = "fmt6_act",
  46         [CFA_RESOURCE_TYPE_P4_L2_CTXT_TCAM_HIGH] = "l2ctx_hi",
  47         [CFA_RESOURCE_TYPE_P4_L2_CTXT_TCAM_LOW] = "l2ctx_lo",
  48         [CFA_RESOURCE_TYPE_P4_L2_CTXT_REMAP_HIGH] = "l2ctr_hi",
  49         [CFA_RESOURCE_TYPE_P4_L2_CTXT_REMAP_LOW] = "l2ctr_lo",
  50         [CFA_RESOURCE_TYPE_P4_PROF_FUNC] = "prf_func",
  51         [CFA_RESOURCE_TYPE_P4_PROF_TCAM] = "prf_tcam",
  52         [CFA_RESOURCE_TYPE_P4_EM_PROF_ID] = "em_prof ",
  53         [CFA_RESOURCE_TYPE_P4_EM_REC] = "em_rec  ",
  54         [CFA_RESOURCE_TYPE_P4_WC_TCAM_PROF_ID] = "wc_prof ",
  55         [CFA_RESOURCE_TYPE_P4_WC_TCAM] = "wc_tcam ",
  56         [CFA_RESOURCE_TYPE_P4_METER_PROF] = "mtr_prof",
  57         [CFA_RESOURCE_TYPE_P4_MIRROR] = "mirror  ",
  58         [CFA_RESOURCE_TYPE_P4_SP_TCAM] = "sp_tcam ",
  59         [CFA_RESOURCE_TYPE_P4_TBL_SCOPE] = "tb_scope",
  60 };
  61
  62 /**
  63  * Device specific function that retrieves the MAX number of HCAPI
  64  * types the device supports.
  65  *
  66  * [in] tfp
  67  *   Pointer to TF handle
  68  *
  69  * [out] max_types
  70  *   Pointer to the MAX number of CFA resource types supported
  71  *
  72  * Returns
  73  *   - (0) if successful.
  74  *   - (-EINVAL) on failure.
  75  */
  76 static int
  77 tf_dev_p4_get_max_types(struct tf *tfp,
  78                         uint16_t *max_types)
  79 {
  80         if (max_types == NULL || tfp == NULL)
  81                 return -EINVAL;
  82
  83         *max_types = CFA_RESOURCE_TYPE_P4_LAST + 1;
  84
  85         return 0;
  86 }
  87 /**
  88  * Device specific function that retrieves a human readable
  89  * string to identify a CFA resource type.
  90  *
  91  * [in] tfp
  92  *   Pointer to TF handle
  93  *
  94  * [in] resource_id
  95  *   HCAPI CFA resource id
  96  *
  97  * [out] resource_str
  98  *   Resource string
  99  *
 100  * Returns
 101  *   - (0) if successful.
 102  *   - (-EINVAL) on failure.
 103  */
 104 static int
 105 tf_dev_p4_get_resource_str(struct tf *tfp __rte_unused,
 106                            uint16_t resource_id,
 107                            const char **resource_str)
 108 {
 109         if (resource_str == NULL)
 110                 return -EINVAL;
 111
 112         if (resource_id > CFA_RESOURCE_TYPE_P4_LAST)
 113                 return -EINVAL;
 114
 115         *resource_str = tf_resource_str_p4[resource_id];
 116
 117         return 0;
 118 }
 119
 120 /**
 121  * Device specific function that retrieves the WC TCAM slices the
 122  * device supports.
 123  *
 124  * [in] tfp
 125  *   Pointer to TF handle
 126  *
 127  * [out] slice_size
 128  *   Pointer to the WC TCAM slice size
 129  *
 130  * [out] num_slices_per_row
 131  *   Pointer to the WC TCAM row slice configuration
 132  *
 133  * Returns
 134  *   - (0) if successful.
 135  *   - (-EINVAL) on failure.
 136  */
 137 static int
 138 tf_dev_p4_get_tcam_slice_info(struct tf *tfp __rte_unused,
 139                               enum tf_tcam_tbl_type type,
 140                               uint16_t key_sz,
 141                               uint16_t *num_slices_per_row)
 142 {
 143 /* Single slice support */
 144 #define CFA_P4_WC_TCAM_SLICES_PER_ROW 1
 145 #define CFA_P4_WC_TCAM_SLICE_SIZE     12
 146
 147         if (type == TF_TCAM_TBL_TYPE_WC_TCAM) {
 148                 *num_slices_per_row = CFA_P4_WC_TCAM_SLICES_PER_ROW;
 149                 if (key_sz > *num_slices_per_row * CFA_P4_WC_TCAM_SLICE_SIZE)
 150                         return -ENOTSUP;
 151         } else { /* for other type of tcam */
 152                 *num_slices_per_row = 1;
 153         }
 154
 155         return 0;
 156 }
 157
 158 static int
 159 tf_dev_p4_map_parif(struct tf *tfp __rte_unused,
 160                     uint16_t parif_bitmask,
 161                     uint16_t pf,
 162                     uint8_t *data,
 163                     uint8_t *mask,
 164                     uint16_t sz_in_bytes)
 165 {
 166         uint32_t parif_pf[2] = { 0 };
 167         uint32_t parif_pf_mask[2] = { 0 };
 168         uint32_t parif;
 169         uint32_t shift;
 170
 171         if (sz_in_bytes != sizeof(uint64_t))
 172                 return -ENOTSUP;
 173
 174         for (parif = 0; parif < TF_DEV_P4_PARIF_MAX; parif++) {
 175                 if (parif_bitmask & (1UL << parif)) {
 176                         if (parif < 8) {
 177                                 shift = 4 * parif;
 178                                 parif_pf_mask[0] |= TF_DEV_P4_PF_MASK << shift;
 179                                 parif_pf[0] |= pf << shift;
 180                         } else {
 181                                 shift = 4 * (parif - 8);
 182                                 parif_pf_mask[1] |= TF_DEV_P4_PF_MASK << shift;
 183                                 parif_pf[1] |= pf << shift;
 184                         }
 185                 }
 186         }
 187         tfp_memcpy(data, parif_pf, sz_in_bytes);
 188         tfp_memcpy(mask, parif_pf_mask, sz_in_bytes);
 189
 190         return 0;
 191 }
 192
 193 /**
 194  * Device specific function that retrieves the increment
 195  * required for certain table types in a shared session
 196  *
 197  * [in] tfp
 198  *  tf handle
 199  *
 200  * [in/out] parms
 201  *   pointer to parms structure
 202  *
 203  * Returns
 204  *   - (0) if successful.
 205  *   - (-EINVAL) on failure.
 206  */
 207 static int tf_dev_p4_get_shared_tbl_increment(struct tf *tfp __rte_unused,
 208                                 struct tf_get_shared_tbl_increment_parms *parms)
 209 {
 210         parms->increment_cnt = 1;
 211         return 0;
 212 }
 213 static int tf_dev_p4_get_mailbox(void)
 214 {
 215         return TF_KONG_MB;
 216 }
 217
 218 static int tf_dev_p4_word_align(uint16_t size)
 219 {
 220         return ((((size) + 31) >> 5) * 4);
 221 }
 222
 223 /**
 224  * Truflow P4 device specific functions
 225  */
 226 const struct tf_dev_ops tf_dev_ops_p4_init = {
 227         .tf_dev_get_max_types = tf_dev_p4_get_max_types,
 228         .tf_dev_get_resource_str = tf_dev_p4_get_resource_str,
 229         .tf_dev_get_tcam_slice_info = tf_dev_p4_get_tcam_slice_info,
 230         .tf_dev_alloc_ident = NULL,
 231         .tf_dev_free_ident = NULL,
 232         .tf_dev_search_ident = NULL,
 233         .tf_dev_get_ident_resc_info = NULL,
 234         .tf_dev_get_tbl_info = NULL,
 235         .tf_dev_alloc_ext_tbl = NULL,
 236         .tf_dev_alloc_tbl = NULL,
 237         .tf_dev_free_ext_tbl = NULL,
 238         .tf_dev_free_tbl = NULL,
 239         .tf_dev_alloc_search_tbl = NULL,
 240         .tf_dev_set_tbl = NULL,
 241         .tf_dev_set_ext_tbl = NULL,
 242         .tf_dev_get_tbl = NULL,
 243         .tf_dev_get_bulk_tbl = NULL,
 244         .tf_dev_get_shared_tbl_increment = tf_dev_p4_get_shared_tbl_increment,
 245         .tf_dev_get_tbl_resc_info = NULL,
 246         .tf_dev_alloc_tcam = NULL,
 247         .tf_dev_free_tcam = NULL,
 248         .tf_dev_alloc_search_tcam = NULL,
 249         .tf_dev_set_tcam = NULL,
 250         .tf_dev_get_tcam = NULL,
 251         .tf_dev_get_tcam_resc_info = NULL,
 252         .tf_dev_insert_int_em_entry = NULL,
 253         .tf_dev_delete_int_em_entry = NULL,
 254         .tf_dev_insert_ext_em_entry = NULL,
 255         .tf_dev_delete_ext_em_entry = NULL,
 256         .tf_dev_get_em_resc_info = NULL,
 257         .tf_dev_alloc_tbl_scope = NULL,
 258         .tf_dev_map_tbl_scope = NULL,
 259         .tf_dev_map_parif = NULL,
 260         .tf_dev_free_tbl_scope = NULL,
 261         .tf_dev_set_if_tbl = NULL,
 262         .tf_dev_get_if_tbl = NULL,
 263         .tf_dev_set_global_cfg = NULL,
 264         .tf_dev_get_global_cfg = NULL,
 265         .tf_dev_get_mailbox = tf_dev_p4_get_mailbox,
 266         .tf_dev_word_align = NULL,
 267 };
 268
 269 /**
 270  * Truflow P4 device specific functions
 271  */
 272 const struct tf_dev_ops tf_dev_ops_p4 = {
 273         .tf_dev_get_max_types = tf_dev_p4_get_max_types,
 274         .tf_dev_get_resource_str = tf_dev_p4_get_resource_str,
 275         .tf_dev_get_tcam_slice_info = tf_dev_p4_get_tcam_slice_info,
 276         .tf_dev_alloc_ident = tf_ident_alloc,
 277         .tf_dev_free_ident = tf_ident_free,
 278         .tf_dev_search_ident = tf_ident_search,
 279         .tf_dev_get_ident_resc_info = tf_ident_get_resc_info,
 280         .tf_dev_get_tbl_info = NULL,
 281         .tf_dev_alloc_tbl = tf_tbl_alloc,
 282         .tf_dev_alloc_ext_tbl = tf_tbl_ext_alloc,
 283         .tf_dev_free_tbl = tf_tbl_free,
 284         .tf_dev_free_ext_tbl = tf_tbl_ext_free,
 285         .tf_dev_alloc_search_tbl = tf_tbl_alloc_search,
 286         .tf_dev_set_tbl = tf_tbl_set,
 287         .tf_dev_set_ext_tbl = tf_tbl_ext_common_set,
 288         .tf_dev_get_tbl = tf_tbl_get,
 289         .tf_dev_get_bulk_tbl = tf_tbl_bulk_get,
 290         .tf_dev_get_shared_tbl_increment = tf_dev_p4_get_shared_tbl_increment,
 291         .tf_dev_get_tbl_resc_info = tf_tbl_get_resc_info,
 292 #ifdef TF_TCAM_SHARED
 293         .tf_dev_alloc_tcam = tf_tcam_shared_alloc,
 294         .tf_dev_free_tcam = tf_tcam_shared_free,
 295         .tf_dev_set_tcam = tf_tcam_shared_set,
 296         .tf_dev_get_tcam = tf_tcam_shared_get,
 297         .tf_dev_move_tcam = tf_tcam_shared_move_p4,
 298         .tf_dev_clear_tcam = tf_tcam_shared_clear,
 299 #else /* !TF_TCAM_SHARED */
 300         .tf_dev_alloc_tcam = tf_tcam_alloc,
 301         .tf_dev_free_tcam = tf_tcam_free,
 302         .tf_dev_set_tcam = tf_tcam_set,
 303         .tf_dev_get_tcam = tf_tcam_get,
 304 #endif
 305         .tf_dev_alloc_search_tcam = tf_tcam_alloc_search,
 306         .tf_dev_get_tcam_resc_info = tf_tcam_get_resc_info,
 307         .tf_dev_insert_int_em_entry = tf_em_insert_int_entry,
 308         .tf_dev_delete_int_em_entry = tf_em_delete_int_entry,
 309         .tf_dev_insert_ext_em_entry = tf_em_insert_ext_entry,
 310         .tf_dev_delete_ext_em_entry = tf_em_delete_ext_entry,
 311         .tf_dev_get_em_resc_info = tf_em_get_resc_info,
 312         .tf_dev_alloc_tbl_scope = tf_em_ext_common_alloc,
 313         .tf_dev_map_tbl_scope = tf_em_ext_map_tbl_scope,
 314         .tf_dev_map_parif = tf_dev_p4_map_parif,
 315         .tf_dev_free_tbl_scope = tf_em_ext_common_free,
 316         .tf_dev_set_if_tbl = tf_if_tbl_set,
 317         .tf_dev_get_if_tbl = tf_if_tbl_get,
 318         .tf_dev_set_global_cfg = tf_global_cfg_set,
 319         .tf_dev_get_global_cfg = tf_global_cfg_get,
 320         .tf_dev_get_mailbox = tf_dev_p4_get_mailbox,
 321         .tf_dev_word_align = tf_dev_p4_word_align,
 322         .tf_dev_cfa_key_hash = hcapi_cfa_p4_key_hash
 323 };