1 /* 2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef __MLX5_EN_STATS_H__ 34 #define __MLX5_EN_STATS_H__ 35 36 #define MLX5E_READ_CTR64_CPU(ptr, dsc, i) \ 37 (*(u64 *)((char *)ptr + dsc[i].offset)) 38 #define MLX5E_READ_CTR64_BE(ptr, dsc, i) \ 39 be64_to_cpu(*(__be64 *)((char *)ptr + dsc[i].offset)) 40 #define MLX5E_READ_CTR32_CPU(ptr, dsc, i) \ 41 (*(u32 *)((char *)ptr + dsc[i].offset)) 42 #define MLX5E_READ_CTR32_BE(ptr, dsc, i) \ 43 be32_to_cpu(*(__be32 *)((char *)ptr + dsc[i].offset)) 44 45 #define MLX5E_DECLARE_STAT(type, fld) #fld, offsetof(type, fld) 46 #define MLX5E_DECLARE_RX_STAT(type, fld) "rx%d_"#fld, offsetof(type, fld) 47 #define MLX5E_DECLARE_TX_STAT(type, fld) "tx%d_"#fld, offsetof(type, fld) 48 #define MLX5E_DECLARE_XDPSQ_STAT(type, fld) "tx%d_xdp_"#fld, offsetof(type, fld) 49 #define MLX5E_DECLARE_RQ_XDPSQ_STAT(type, fld) "rx%d_xdp_tx_"#fld, offsetof(type, fld) 50 #define MLX5E_DECLARE_XSKRQ_STAT(type, fld) "rx%d_xsk_"#fld, offsetof(type, fld) 51 #define MLX5E_DECLARE_XSKSQ_STAT(type, fld) "tx%d_xsk_"#fld, offsetof(type, fld) 52 #define MLX5E_DECLARE_CH_STAT(type, fld) "ch%d_"#fld, offsetof(type, fld) 53 54 #define MLX5E_DECLARE_PTP_TX_STAT(type, fld) "ptp_tx%d_"#fld, offsetof(type, fld) 55 #define MLX5E_DECLARE_PTP_CH_STAT(type, fld) "ptp_ch_"#fld, offsetof(type, fld) 56 #define MLX5E_DECLARE_PTP_CQ_STAT(type, fld) "ptp_cq%d_"#fld, offsetof(type, fld) 57 #define MLX5E_DECLARE_PTP_RQ_STAT(type, fld) "ptp_rq%d_"#fld, offsetof(type, fld) 58 59 #define MLX5E_DECLARE_QOS_TX_STAT(type, fld) "qos_tx%d_"#fld, offsetof(type, fld) 60 61 struct counter_desc { 62 char format[ETH_GSTRING_LEN]; 63 size_t offset; /* Byte offset */ 64 }; 65 66 enum { 67 MLX5E_NDO_UPDATE_STATS = BIT(0x1), 68 }; 69 70 struct mlx5e_priv; 71 struct mlx5e_stats_grp { 72 u16 update_stats_mask; 73 int (*get_num_stats)(struct mlx5e_priv *priv); 74 int (*fill_strings)(struct mlx5e_priv *priv, u8 *data, int idx); 75 int (*fill_stats)(struct mlx5e_priv *priv, u64 *data, int idx); 76 void (*update_stats)(struct mlx5e_priv *priv); 77 }; 78 79 typedef const struct mlx5e_stats_grp *const mlx5e_stats_grp_t; 80 81 #define MLX5E_STATS_GRP_OP(grp, name) mlx5e_stats_grp_ ## grp ## _ ## name 82 83 #define MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(grp) \ 84 int MLX5E_STATS_GRP_OP(grp, num_stats)(struct mlx5e_priv *priv) 85 86 #define MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(grp) \ 87 void MLX5E_STATS_GRP_OP(grp, update_stats)(struct mlx5e_priv *priv) 88 89 #define MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(grp) \ 90 int MLX5E_STATS_GRP_OP(grp, fill_strings)(struct mlx5e_priv *priv, u8 *data, int idx) 91 92 #define MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(grp) \ 93 int MLX5E_STATS_GRP_OP(grp, fill_stats)(struct mlx5e_priv *priv, u64 *data, int idx) 94 95 #define MLX5E_STATS_GRP(grp) mlx5e_stats_grp_ ## grp 96 97 #define MLX5E_DECLARE_STATS_GRP(grp) \ 98 const struct mlx5e_stats_grp MLX5E_STATS_GRP(grp) 99 100 #define MLX5E_DEFINE_STATS_GRP(grp, mask) \ 101 MLX5E_DECLARE_STATS_GRP(grp) = { \ 102 .get_num_stats = MLX5E_STATS_GRP_OP(grp, num_stats), \ 103 .fill_stats = MLX5E_STATS_GRP_OP(grp, fill_stats), \ 104 .fill_strings = MLX5E_STATS_GRP_OP(grp, fill_strings), \ 105 .update_stats = MLX5E_STATS_GRP_OP(grp, update_stats), \ 106 .update_stats_mask = mask, \ 107 } 108 109 unsigned int mlx5e_stats_total_num(struct mlx5e_priv *priv); 110 void mlx5e_stats_update(struct mlx5e_priv *priv); 111 void mlx5e_stats_fill(struct mlx5e_priv *priv, u64 *data, int idx); 112 void mlx5e_stats_fill_strings(struct mlx5e_priv *priv, u8 *data); 113 void mlx5e_stats_update_ndo_stats(struct mlx5e_priv *priv); 114 115 void mlx5e_stats_pause_get(struct mlx5e_priv *priv, 116 struct ethtool_pause_stats *pause_stats); 117 void mlx5e_stats_fec_get(struct mlx5e_priv *priv, 118 struct ethtool_fec_stats *fec_stats); 119 120 void mlx5e_stats_eth_phy_get(struct mlx5e_priv *priv, 121 struct ethtool_eth_phy_stats *phy_stats); 122 void mlx5e_stats_eth_mac_get(struct mlx5e_priv *priv, 123 struct ethtool_eth_mac_stats *mac_stats); 124 void mlx5e_stats_eth_ctrl_get(struct mlx5e_priv *priv, 125 struct ethtool_eth_ctrl_stats *ctrl_stats); 126 void mlx5e_stats_rmon_get(struct mlx5e_priv *priv, 127 struct ethtool_rmon_stats *rmon, 128 const struct ethtool_rmon_hist_range **ranges); 129 void mlx5e_get_link_ext_stats(struct net_device *dev, 130 struct ethtool_link_ext_stats *stats); 131 132 /* Concrete NIC Stats */ 133 134 struct mlx5e_sw_stats { 135 u64 rx_packets; 136 u64 rx_bytes; 137 u64 tx_packets; 138 u64 tx_bytes; 139 u64 tx_tso_packets; 140 u64 tx_tso_bytes; 141 u64 tx_tso_inner_packets; 142 u64 tx_tso_inner_bytes; 143 u64 tx_added_vlan_packets; 144 u64 tx_nop; 145 u64 tx_mpwqe_blks; 146 u64 tx_mpwqe_pkts; 147 u64 rx_lro_packets; 148 u64 rx_lro_bytes; 149 u64 rx_gro_packets; 150 u64 rx_gro_bytes; 151 u64 rx_gro_skbs; 152 u64 rx_gro_match_packets; 153 u64 rx_gro_large_hds; 154 u64 rx_mcast_packets; 155 u64 rx_ecn_mark; 156 u64 rx_removed_vlan_packets; 157 u64 rx_csum_unnecessary; 158 u64 rx_csum_none; 159 u64 rx_csum_complete; 160 u64 rx_csum_complete_tail; 161 u64 rx_csum_complete_tail_slow; 162 u64 rx_csum_unnecessary_inner; 163 u64 rx_xdp_drop; 164 u64 rx_xdp_redirect; 165 u64 rx_xdp_tx_xmit; 166 u64 rx_xdp_tx_mpwqe; 167 u64 rx_xdp_tx_inlnw; 168 u64 rx_xdp_tx_nops; 169 u64 rx_xdp_tx_full; 170 u64 rx_xdp_tx_err; 171 u64 rx_xdp_tx_cqe; 172 u64 tx_csum_none; 173 u64 tx_csum_partial; 174 u64 tx_csum_partial_inner; 175 u64 tx_queue_stopped; 176 u64 tx_queue_dropped; 177 u64 tx_xmit_more; 178 u64 tx_recover; 179 u64 tx_cqes; 180 u64 tx_queue_wake; 181 u64 tx_cqe_err; 182 u64 tx_xdp_xmit; 183 u64 tx_xdp_mpwqe; 184 u64 tx_xdp_inlnw; 185 u64 tx_xdp_nops; 186 u64 tx_xdp_full; 187 u64 tx_xdp_err; 188 u64 tx_xdp_cqes; 189 u64 rx_wqe_err; 190 u64 rx_mpwqe_filler_cqes; 191 u64 rx_mpwqe_filler_strides; 192 u64 rx_oversize_pkts_sw_drop; 193 u64 rx_buff_alloc_err; 194 u64 rx_cqe_compress_blks; 195 u64 rx_cqe_compress_pkts; 196 u64 rx_congst_umr; 197 u64 rx_arfs_err; 198 u64 rx_recover; 199 u64 ch_events; 200 u64 ch_poll; 201 u64 ch_arm; 202 u64 ch_aff_change; 203 u64 ch_force_irq; 204 u64 ch_eq_rearm; 205 #ifdef CONFIG_PAGE_POOL_STATS 206 u64 rx_pp_alloc_fast; 207 u64 rx_pp_alloc_slow; 208 u64 rx_pp_alloc_slow_high_order; 209 u64 rx_pp_alloc_empty; 210 u64 rx_pp_alloc_refill; 211 u64 rx_pp_alloc_waive; 212 u64 rx_pp_recycle_cached; 213 u64 rx_pp_recycle_cache_full; 214 u64 rx_pp_recycle_ring; 215 u64 rx_pp_recycle_ring_full; 216 u64 rx_pp_recycle_released_ref; 217 #endif 218 #ifdef CONFIG_MLX5_EN_TLS 219 u64 tx_tls_encrypted_packets; 220 u64 tx_tls_encrypted_bytes; 221 u64 tx_tls_ooo; 222 u64 tx_tls_dump_packets; 223 u64 tx_tls_dump_bytes; 224 u64 tx_tls_resync_bytes; 225 u64 tx_tls_skip_no_sync_data; 226 u64 tx_tls_drop_no_sync_data; 227 u64 tx_tls_drop_bypass_req; 228 229 u64 rx_tls_decrypted_packets; 230 u64 rx_tls_decrypted_bytes; 231 u64 rx_tls_resync_req_pkt; 232 u64 rx_tls_resync_req_start; 233 u64 rx_tls_resync_req_end; 234 u64 rx_tls_resync_req_skip; 235 u64 rx_tls_resync_res_ok; 236 u64 rx_tls_resync_res_retry; 237 u64 rx_tls_resync_res_skip; 238 u64 rx_tls_err; 239 #endif 240 241 u64 rx_xsk_packets; 242 u64 rx_xsk_bytes; 243 u64 rx_xsk_csum_complete; 244 u64 rx_xsk_csum_unnecessary; 245 u64 rx_xsk_csum_unnecessary_inner; 246 u64 rx_xsk_csum_none; 247 u64 rx_xsk_ecn_mark; 248 u64 rx_xsk_removed_vlan_packets; 249 u64 rx_xsk_xdp_drop; 250 u64 rx_xsk_xdp_redirect; 251 u64 rx_xsk_wqe_err; 252 u64 rx_xsk_mpwqe_filler_cqes; 253 u64 rx_xsk_mpwqe_filler_strides; 254 u64 rx_xsk_oversize_pkts_sw_drop; 255 u64 rx_xsk_buff_alloc_err; 256 u64 rx_xsk_cqe_compress_blks; 257 u64 rx_xsk_cqe_compress_pkts; 258 u64 rx_xsk_congst_umr; 259 u64 rx_xsk_arfs_err; 260 u64 tx_xsk_xmit; 261 u64 tx_xsk_mpwqe; 262 u64 tx_xsk_inlnw; 263 u64 tx_xsk_full; 264 u64 tx_xsk_err; 265 u64 tx_xsk_cqes; 266 }; 267 268 struct mlx5e_qcounter_stats { 269 u32 rx_out_of_buffer; 270 u32 rx_if_down_packets; 271 }; 272 273 #define VNIC_ENV_GET(vnic_env_stats, c) \ 274 MLX5_GET(query_vnic_env_out, (vnic_env_stats)->query_vnic_env_out, \ 275 vport_env.c) 276 277 struct mlx5e_vnic_env_stats { 278 __be64 query_vnic_env_out[MLX5_ST_SZ_QW(query_vnic_env_out)]; 279 }; 280 281 #define VPORT_COUNTER_GET(vstats, c) MLX5_GET64(query_vport_counter_out, \ 282 vstats->query_vport_out, c) 283 284 struct mlx5e_vport_stats { 285 __be64 query_vport_out[MLX5_ST_SZ_QW(query_vport_counter_out)]; 286 }; 287 288 #define PPORT_802_3_GET(pstats, c) \ 289 MLX5_GET64(ppcnt_reg, pstats->IEEE_802_3_counters, \ 290 counter_set.eth_802_3_cntrs_grp_data_layout.c##_high) 291 #define PPORT_2863_GET(pstats, c) \ 292 MLX5_GET64(ppcnt_reg, pstats->RFC_2863_counters, \ 293 counter_set.eth_2863_cntrs_grp_data_layout.c##_high) 294 #define PPORT_2819_GET(pstats, c) \ 295 MLX5_GET64(ppcnt_reg, pstats->RFC_2819_counters, \ 296 counter_set.eth_2819_cntrs_grp_data_layout.c##_high) 297 #define PPORT_PHY_STATISTICAL_GET(pstats, c) \ 298 MLX5_GET64(ppcnt_reg, (pstats)->phy_statistical_counters, \ 299 counter_set.phys_layer_statistical_cntrs.c##_high) 300 #define PPORT_PER_PRIO_GET(pstats, prio, c) \ 301 MLX5_GET64(ppcnt_reg, pstats->per_prio_counters[prio], \ 302 counter_set.eth_per_prio_grp_data_layout.c##_high) 303 #define NUM_PPORT_PRIO 8 304 #define PPORT_ETH_EXT_GET(pstats, c) \ 305 MLX5_GET64(ppcnt_reg, (pstats)->eth_ext_counters, \ 306 counter_set.eth_extended_cntrs_grp_data_layout.c##_high) 307 308 struct mlx5e_pport_stats { 309 __be64 IEEE_802_3_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 310 __be64 RFC_2863_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 311 __be64 RFC_2819_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 312 __be64 per_prio_counters[NUM_PPORT_PRIO][MLX5_ST_SZ_QW(ppcnt_reg)]; 313 __be64 phy_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 314 __be64 phy_statistical_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 315 __be64 eth_ext_counters[MLX5_ST_SZ_QW(ppcnt_reg)]; 316 __be64 per_tc_prio_counters[NUM_PPORT_PRIO][MLX5_ST_SZ_QW(ppcnt_reg)]; 317 __be64 per_tc_congest_prio_counters[NUM_PPORT_PRIO][MLX5_ST_SZ_QW(ppcnt_reg)]; 318 }; 319 320 #define PCIE_PERF_GET(pcie_stats, c) \ 321 MLX5_GET(mpcnt_reg, (pcie_stats)->pcie_perf_counters, \ 322 counter_set.pcie_perf_cntrs_grp_data_layout.c) 323 324 #define PCIE_PERF_GET64(pcie_stats, c) \ 325 MLX5_GET64(mpcnt_reg, (pcie_stats)->pcie_perf_counters, \ 326 counter_set.pcie_perf_cntrs_grp_data_layout.c##_high) 327 328 struct mlx5e_pcie_stats { 329 __be64 pcie_perf_counters[MLX5_ST_SZ_QW(mpcnt_reg)]; 330 }; 331 332 struct mlx5e_rq_stats { 333 u64 packets; 334 u64 bytes; 335 u64 csum_complete; 336 u64 csum_complete_tail; 337 u64 csum_complete_tail_slow; 338 u64 csum_unnecessary; 339 u64 csum_unnecessary_inner; 340 u64 csum_none; 341 u64 lro_packets; 342 u64 lro_bytes; 343 u64 gro_packets; 344 u64 gro_bytes; 345 u64 gro_skbs; 346 u64 gro_match_packets; 347 u64 gro_large_hds; 348 u64 mcast_packets; 349 u64 ecn_mark; 350 u64 removed_vlan_packets; 351 u64 xdp_drop; 352 u64 xdp_redirect; 353 u64 wqe_err; 354 u64 mpwqe_filler_cqes; 355 u64 mpwqe_filler_strides; 356 u64 oversize_pkts_sw_drop; 357 u64 buff_alloc_err; 358 u64 cqe_compress_blks; 359 u64 cqe_compress_pkts; 360 u64 congst_umr; 361 u64 arfs_err; 362 u64 recover; 363 #ifdef CONFIG_PAGE_POOL_STATS 364 u64 pp_alloc_fast; 365 u64 pp_alloc_slow; 366 u64 pp_alloc_slow_high_order; 367 u64 pp_alloc_empty; 368 u64 pp_alloc_refill; 369 u64 pp_alloc_waive; 370 u64 pp_recycle_cached; 371 u64 pp_recycle_cache_full; 372 u64 pp_recycle_ring; 373 u64 pp_recycle_ring_full; 374 u64 pp_recycle_released_ref; 375 #endif 376 #ifdef CONFIG_MLX5_EN_TLS 377 u64 tls_decrypted_packets; 378 u64 tls_decrypted_bytes; 379 u64 tls_resync_req_pkt; 380 u64 tls_resync_req_start; 381 u64 tls_resync_req_end; 382 u64 tls_resync_req_skip; 383 u64 tls_resync_res_ok; 384 u64 tls_resync_res_retry; 385 u64 tls_resync_res_skip; 386 u64 tls_err; 387 #endif 388 }; 389 390 struct mlx5e_sq_stats { 391 /* commonly accessed in data path */ 392 u64 packets; 393 u64 bytes; 394 u64 xmit_more; 395 u64 tso_packets; 396 u64 tso_bytes; 397 u64 tso_inner_packets; 398 u64 tso_inner_bytes; 399 u64 csum_partial; 400 u64 csum_partial_inner; 401 u64 added_vlan_packets; 402 u64 nop; 403 u64 mpwqe_blks; 404 u64 mpwqe_pkts; 405 #ifdef CONFIG_MLX5_EN_TLS 406 u64 tls_encrypted_packets; 407 u64 tls_encrypted_bytes; 408 u64 tls_ooo; 409 u64 tls_dump_packets; 410 u64 tls_dump_bytes; 411 u64 tls_resync_bytes; 412 u64 tls_skip_no_sync_data; 413 u64 tls_drop_no_sync_data; 414 u64 tls_drop_bypass_req; 415 #endif 416 /* less likely accessed in data path */ 417 u64 csum_none; 418 u64 stopped; 419 u64 dropped; 420 u64 recover; 421 /* dirtied @completion */ 422 u64 cqes ____cacheline_aligned_in_smp; 423 u64 wake; 424 u64 cqe_err; 425 }; 426 427 struct mlx5e_xdpsq_stats { 428 u64 xmit; 429 u64 mpwqe; 430 u64 inlnw; 431 u64 nops; 432 u64 full; 433 u64 err; 434 /* dirtied @completion */ 435 u64 cqes ____cacheline_aligned_in_smp; 436 }; 437 438 struct mlx5e_ch_stats { 439 u64 events; 440 u64 poll; 441 u64 arm; 442 u64 aff_change; 443 u64 force_irq; 444 u64 eq_rearm; 445 }; 446 447 struct mlx5e_ptp_cq_stats { 448 u64 cqe; 449 u64 err_cqe; 450 u64 abort; 451 u64 abort_abs_diff_ns; 452 u64 resync_cqe; 453 u64 resync_event; 454 u64 ooo_cqe_drop; 455 }; 456 457 struct mlx5e_rep_stats { 458 u64 vport_rx_packets; 459 u64 vport_tx_packets; 460 u64 vport_rx_bytes; 461 u64 vport_tx_bytes; 462 u64 rx_vport_rdma_unicast_packets; 463 u64 tx_vport_rdma_unicast_packets; 464 u64 rx_vport_rdma_unicast_bytes; 465 u64 tx_vport_rdma_unicast_bytes; 466 u64 rx_vport_rdma_multicast_packets; 467 u64 tx_vport_rdma_multicast_packets; 468 u64 rx_vport_rdma_multicast_bytes; 469 u64 tx_vport_rdma_multicast_bytes; 470 }; 471 472 struct mlx5e_stats { 473 struct mlx5e_sw_stats sw; 474 struct mlx5e_qcounter_stats qcnt; 475 struct mlx5e_vnic_env_stats vnic; 476 struct mlx5e_vport_stats vport; 477 struct mlx5e_pport_stats pport; 478 struct rtnl_link_stats64 vf_vport; 479 struct mlx5e_pcie_stats pcie; 480 struct mlx5e_rep_stats rep_stats; 481 }; 482 483 extern mlx5e_stats_grp_t mlx5e_nic_stats_grps[]; 484 unsigned int mlx5e_nic_stats_grps_num(struct mlx5e_priv *priv); 485 486 extern MLX5E_DECLARE_STATS_GRP(sw); 487 extern MLX5E_DECLARE_STATS_GRP(qcnt); 488 extern MLX5E_DECLARE_STATS_GRP(vnic_env); 489 extern MLX5E_DECLARE_STATS_GRP(vport); 490 extern MLX5E_DECLARE_STATS_GRP(802_3); 491 extern MLX5E_DECLARE_STATS_GRP(2863); 492 extern MLX5E_DECLARE_STATS_GRP(2819); 493 extern MLX5E_DECLARE_STATS_GRP(phy); 494 extern MLX5E_DECLARE_STATS_GRP(eth_ext); 495 extern MLX5E_DECLARE_STATS_GRP(pcie); 496 extern MLX5E_DECLARE_STATS_GRP(per_prio); 497 extern MLX5E_DECLARE_STATS_GRP(pme); 498 extern MLX5E_DECLARE_STATS_GRP(channels); 499 extern MLX5E_DECLARE_STATS_GRP(per_port_buff_congest); 500 extern MLX5E_DECLARE_STATS_GRP(ipsec_hw); 501 extern MLX5E_DECLARE_STATS_GRP(ipsec_sw); 502 extern MLX5E_DECLARE_STATS_GRP(ptp); 503 extern MLX5E_DECLARE_STATS_GRP(macsec_hw); 504 505 #endif /* __MLX5_EN_STATS_H__ */ 506