1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2018-2021 HiSilicon Limited. 3 */ 4 5 #include <rte_ethdev.h> 6 #include <rte_io.h> 7 #include <rte_malloc.h> 8 9 #include "hns3_ethdev.h" 10 #include "hns3_logs.h" 11 12 /* 13 * The hash key used for rss initialization. 14 */ 15 static const uint8_t hns3_hash_key[] = { 16 0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2, 17 0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0, 18 0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4, 19 0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C, 20 0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA 21 }; 22 23 enum hns3_tuple_field { 24 /* IPV4_TCP ENABLE FIELD */ 25 HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_D = 0, 26 HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_S, 27 HNS3_RSS_FIELD_IPV4_TCP_EN_IP_D, 28 HNS3_RSS_FIELD_IPV4_TCP_EN_IP_S, 29 30 /* IPV4_UDP ENABLE FIELD */ 31 HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_D = 8, 32 HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_S, 33 HNS3_RSS_FIELD_IPV4_UDP_EN_IP_D, 34 HNS3_RSS_FIELD_IPV4_UDP_EN_IP_S, 35 36 /* IPV4_SCTP ENABLE FIELD */ 37 HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_D = 16, 38 HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_S, 39 HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_D, 40 HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_S, 41 HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_VER, 42 43 /* IPV4 ENABLE FIELD */ 44 HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_D = 24, 45 HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_S, 46 HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_D, 47 HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_S, 48 49 /* IPV6_TCP ENABLE FIELD */ 50 HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_D = 32, 51 HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_S, 52 HNS3_RSS_FIELD_IPV6_TCP_EN_IP_D, 53 HNS3_RSS_FIELD_IPV6_TCP_EN_IP_S, 54 55 /* IPV6_UDP ENABLE FIELD */ 56 HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_D = 40, 57 HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_S, 58 HNS3_RSS_FIELD_IPV6_UDP_EN_IP_D, 59 HNS3_RSS_FIELD_IPV6_UDP_EN_IP_S, 60 61 /* IPV6_SCTP ENABLE FIELD */ 62 HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_D = 48, 63 HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_S, 64 HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_D, 65 HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_S, 66 HNS3_RSS_FIELD_IPV6_SCTP_EN_SCTP_VER, 67 68 /* IPV6 ENABLE FIELD */ 69 HNS3_RSS_FIELD_IPV6_NONFRAG_IP_D = 56, 70 HNS3_RSS_FIELD_IPV6_NONFRAG_IP_S, 71 HNS3_RSS_FIELD_IPV6_FRAG_IP_D, 72 HNS3_RSS_FIELD_IPV6_FRAG_IP_S 73 }; 74 75 static const struct { 76 uint64_t rss_types; 77 uint64_t rss_field; 78 } hns3_set_tuple_table[] = { 79 { RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_L3_SRC_ONLY, 80 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_S) }, 81 { RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_L3_DST_ONLY, 82 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_D) }, 83 { RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_L3_SRC_ONLY, 84 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_IP_S) }, 85 { RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_L3_DST_ONLY, 86 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_IP_D) }, 87 { RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_L4_SRC_ONLY, 88 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_S) }, 89 { RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_L4_DST_ONLY, 90 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_D) }, 91 { RTE_ETH_RSS_NONFRAG_IPV4_UDP | RTE_ETH_RSS_L3_SRC_ONLY, 92 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_IP_S) }, 93 { RTE_ETH_RSS_NONFRAG_IPV4_UDP | RTE_ETH_RSS_L3_DST_ONLY, 94 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_IP_D) }, 95 { RTE_ETH_RSS_NONFRAG_IPV4_UDP | RTE_ETH_RSS_L4_SRC_ONLY, 96 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_S) }, 97 { RTE_ETH_RSS_NONFRAG_IPV4_UDP | RTE_ETH_RSS_L4_DST_ONLY, 98 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_D) }, 99 { RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_L3_SRC_ONLY, 100 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_S) }, 101 { RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_L3_DST_ONLY, 102 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_D) }, 103 { RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_L4_SRC_ONLY, 104 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_S) }, 105 { RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_L4_DST_ONLY, 106 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_D) }, 107 { RTE_ETH_RSS_NONFRAG_IPV4_OTHER | RTE_ETH_RSS_L3_SRC_ONLY, 108 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_S) }, 109 { RTE_ETH_RSS_NONFRAG_IPV4_OTHER | RTE_ETH_RSS_L3_DST_ONLY, 110 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_D) }, 111 { RTE_ETH_RSS_FRAG_IPV6 | RTE_ETH_RSS_L3_SRC_ONLY, 112 BIT_ULL(HNS3_RSS_FIELD_IPV6_FRAG_IP_S) }, 113 { RTE_ETH_RSS_FRAG_IPV6 | RTE_ETH_RSS_L3_DST_ONLY, 114 BIT_ULL(HNS3_RSS_FIELD_IPV6_FRAG_IP_D) }, 115 { RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_L3_SRC_ONLY, 116 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_IP_S) }, 117 { RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_L3_DST_ONLY, 118 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_IP_D) }, 119 { RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_L4_SRC_ONLY, 120 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_S) }, 121 { RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_L4_DST_ONLY, 122 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_D) }, 123 { RTE_ETH_RSS_NONFRAG_IPV6_UDP | RTE_ETH_RSS_L3_SRC_ONLY, 124 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_IP_S) }, 125 { RTE_ETH_RSS_NONFRAG_IPV6_UDP | RTE_ETH_RSS_L3_DST_ONLY, 126 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_IP_D) }, 127 { RTE_ETH_RSS_NONFRAG_IPV6_UDP | RTE_ETH_RSS_L4_SRC_ONLY, 128 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_S) }, 129 { RTE_ETH_RSS_NONFRAG_IPV6_UDP | RTE_ETH_RSS_L4_DST_ONLY, 130 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_D) }, 131 { RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_L3_SRC_ONLY, 132 BIT_ULL(HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_S) }, 133 { RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_L3_DST_ONLY, 134 BIT_ULL(HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_D) }, 135 { RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_L4_SRC_ONLY, 136 BIT_ULL(HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_S) }, 137 { RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_L4_DST_ONLY, 138 BIT_ULL(HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_D) }, 139 { RTE_ETH_RSS_NONFRAG_IPV6_OTHER | RTE_ETH_RSS_L3_SRC_ONLY, 140 BIT_ULL(HNS3_RSS_FIELD_IPV6_NONFRAG_IP_S) }, 141 { RTE_ETH_RSS_NONFRAG_IPV6_OTHER | RTE_ETH_RSS_L3_DST_ONLY, 142 BIT_ULL(HNS3_RSS_FIELD_IPV6_NONFRAG_IP_D) }, 143 }; 144 145 static const struct { 146 uint64_t rss_types; 147 uint64_t rss_field; 148 } hns3_set_rss_types[] = { 149 { RTE_ETH_RSS_FRAG_IPV4, BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_D) | 150 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_FRAG_IP_S) }, 151 { RTE_ETH_RSS_NONFRAG_IPV4_TCP, BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_IP_S) | 152 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_IP_D) | 153 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_S) | 154 BIT_ULL(HNS3_RSS_FIELD_IPV4_TCP_EN_TCP_D) }, 155 { RTE_ETH_RSS_NONFRAG_IPV4_UDP, BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_IP_S) | 156 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_IP_D) | 157 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_S) | 158 BIT_ULL(HNS3_RSS_FIELD_IPV4_UDP_EN_UDP_D) }, 159 { RTE_ETH_RSS_NONFRAG_IPV4_SCTP, BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_S) | 160 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_IP_D) | 161 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_S) | 162 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_D) | 163 BIT_ULL(HNS3_RSS_FIELD_IPV4_SCTP_EN_SCTP_VER) }, 164 { RTE_ETH_RSS_NONFRAG_IPV4_OTHER, 165 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_S) | 166 BIT_ULL(HNS3_RSS_FIELD_IPV4_EN_NONFRAG_IP_D) }, 167 { RTE_ETH_RSS_FRAG_IPV6, BIT_ULL(HNS3_RSS_FIELD_IPV6_FRAG_IP_S) | 168 BIT_ULL(HNS3_RSS_FIELD_IPV6_FRAG_IP_D) }, 169 { RTE_ETH_RSS_NONFRAG_IPV6_TCP, BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_IP_S) | 170 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_IP_D) | 171 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_S) | 172 BIT_ULL(HNS3_RSS_FIELD_IPV6_TCP_EN_TCP_D) }, 173 { RTE_ETH_RSS_NONFRAG_IPV6_UDP, BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_IP_S) | 174 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_IP_D) | 175 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_S) | 176 BIT_ULL(HNS3_RSS_FIELD_IPV6_UDP_EN_UDP_D) }, 177 { RTE_ETH_RSS_NONFRAG_IPV6_SCTP, BIT_ULL(HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_S) | 178 BIT_ULL(HNS3_RSS_FIELD_IPV6_SCTP_EN_IP_D) | 179 BIT_ULL(HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_D) | 180 BIT_ULL(HNS3_RSS_FILED_IPV6_SCTP_EN_SCTP_S) | 181 BIT_ULL(HNS3_RSS_FIELD_IPV6_SCTP_EN_SCTP_VER) }, 182 { RTE_ETH_RSS_NONFRAG_IPV6_OTHER, 183 BIT_ULL(HNS3_RSS_FIELD_IPV6_NONFRAG_IP_S) | 184 BIT_ULL(HNS3_RSS_FIELD_IPV6_NONFRAG_IP_D) } 185 }; 186 187 /* 188 * rss_generic_config command function, opcode:0x0D01. 189 * Used to set algorithm, key_offset and hash key of rss. 190 */ 191 int 192 hns3_rss_set_algo_key(struct hns3_hw *hw, const uint8_t *key) 193 { 194 #define HNS3_KEY_OFFSET_MAX 3 195 #define HNS3_SET_HASH_KEY_BYTE_FOUR 2 196 197 struct hns3_rss_generic_config_cmd *req; 198 struct hns3_cmd_desc desc; 199 uint32_t key_offset, key_size; 200 const uint8_t *key_cur; 201 uint8_t cur_offset; 202 int ret; 203 204 req = (struct hns3_rss_generic_config_cmd *)desc.data; 205 206 /* 207 * key_offset=0, hash key byte0~15 is set to hardware. 208 * key_offset=1, hash key byte16~31 is set to hardware. 209 * key_offset=2, hash key byte32~39 is set to hardware. 210 */ 211 for (key_offset = 0; key_offset < HNS3_KEY_OFFSET_MAX; key_offset++) { 212 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_GENERIC_CONFIG, 213 false); 214 215 req->hash_config |= 216 (hw->rss_info.hash_algo & HNS3_RSS_HASH_ALGO_MASK); 217 req->hash_config |= (key_offset << HNS3_RSS_HASH_KEY_OFFSET_B); 218 219 if (key_offset == HNS3_SET_HASH_KEY_BYTE_FOUR) 220 key_size = HNS3_RSS_KEY_SIZE - HNS3_RSS_HASH_KEY_NUM * 221 HNS3_SET_HASH_KEY_BYTE_FOUR; 222 else 223 key_size = HNS3_RSS_HASH_KEY_NUM; 224 225 cur_offset = key_offset * HNS3_RSS_HASH_KEY_NUM; 226 key_cur = key + cur_offset; 227 memcpy(req->hash_key, key_cur, key_size); 228 229 ret = hns3_cmd_send(hw, &desc, 1); 230 if (ret) { 231 hns3_err(hw, "Configure RSS algo key failed %d", ret); 232 return ret; 233 } 234 } 235 /* Update the shadow RSS key with user specified */ 236 memcpy(hw->rss_info.key, key, HNS3_RSS_KEY_SIZE); 237 return 0; 238 } 239 240 /* 241 * Used to configure the tuple selection for RSS hash input. 242 */ 243 static int 244 hns3_rss_set_input_tuple(struct hns3_hw *hw) 245 { 246 struct hns3_rss_conf *rss_config = &hw->rss_info; 247 struct hns3_rss_input_tuple_cmd *req; 248 struct hns3_cmd_desc desc_tuple; 249 int ret; 250 251 hns3_cmd_setup_basic_desc(&desc_tuple, HNS3_OPC_RSS_INPUT_TUPLE, false); 252 253 req = (struct hns3_rss_input_tuple_cmd *)desc_tuple.data; 254 255 req->tuple_field = 256 rte_cpu_to_le_64(rss_config->rss_tuple_sets.rss_tuple_fields); 257 258 ret = hns3_cmd_send(hw, &desc_tuple, 1); 259 if (ret) 260 hns3_err(hw, "Configure RSS input tuple mode failed %d", ret); 261 262 return ret; 263 } 264 265 /* 266 * rss_indirection_table command function, opcode:0x0D07. 267 * Used to configure the indirection table of rss. 268 */ 269 int 270 hns3_set_rss_indir_table(struct hns3_hw *hw, uint16_t *indir, uint16_t size) 271 { 272 struct hns3_rss_indirection_table_cmd *req; 273 struct hns3_cmd_desc desc; 274 uint8_t qid_msb_off; 275 uint8_t qid_msb_val; 276 uint16_t q_id; 277 uint16_t i, j; 278 int ret; 279 280 req = (struct hns3_rss_indirection_table_cmd *)desc.data; 281 282 for (i = 0; i < size / HNS3_RSS_CFG_TBL_SIZE; i++) { 283 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INDIR_TABLE, 284 false); 285 req->start_table_index = 286 rte_cpu_to_le_16(i * HNS3_RSS_CFG_TBL_SIZE); 287 req->rss_set_bitmap = rte_cpu_to_le_16(HNS3_RSS_SET_BITMAP_MSK); 288 for (j = 0; j < HNS3_RSS_CFG_TBL_SIZE; j++) { 289 q_id = indir[i * HNS3_RSS_CFG_TBL_SIZE + j]; 290 req->rss_result_l[j] = q_id & 0xff; 291 292 qid_msb_off = 293 j * HNS3_RSS_CFG_TBL_BW_H / HNS3_BITS_PER_BYTE; 294 qid_msb_val = (q_id >> HNS3_RSS_CFG_TBL_BW_L & 0x1) 295 << (j * HNS3_RSS_CFG_TBL_BW_H % 296 HNS3_BITS_PER_BYTE); 297 req->rss_result_h[qid_msb_off] |= qid_msb_val; 298 } 299 300 ret = hns3_cmd_send(hw, &desc, 1); 301 if (ret) { 302 hns3_err(hw, 303 "Sets RSS indirection table failed %d size %u", 304 ret, size); 305 return ret; 306 } 307 } 308 309 /* Update redirection table of hw */ 310 memcpy(hw->rss_info.rss_indirection_tbl, indir, 311 sizeof(uint16_t) * size); 312 313 return 0; 314 } 315 316 int 317 hns3_rss_reset_indir_table(struct hns3_hw *hw) 318 { 319 uint16_t *lut; 320 int ret; 321 322 lut = rte_zmalloc("hns3_rss_lut", 323 hw->rss_ind_tbl_size * sizeof(uint16_t), 0); 324 if (lut == NULL) { 325 hns3_err(hw, "No hns3_rss_lut memory can be allocated"); 326 return -ENOMEM; 327 } 328 329 ret = hns3_set_rss_indir_table(hw, lut, hw->rss_ind_tbl_size); 330 if (ret) 331 hns3_err(hw, "RSS uninit indir table failed: %d", ret); 332 rte_free(lut); 333 334 return ret; 335 } 336 337 int 338 hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw, 339 struct hns3_rss_tuple_cfg *tuple, uint64_t rss_hf) 340 { 341 struct hns3_rss_input_tuple_cmd *req; 342 struct hns3_cmd_desc desc; 343 uint32_t fields_count = 0; /* count times for setting tuple fields */ 344 uint32_t i; 345 int ret; 346 347 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false); 348 349 req = (struct hns3_rss_input_tuple_cmd *)desc.data; 350 351 for (i = 0; i < RTE_DIM(hns3_set_tuple_table); i++) { 352 if ((rss_hf & hns3_set_tuple_table[i].rss_types) == 353 hns3_set_tuple_table[i].rss_types) { 354 req->tuple_field |= 355 rte_cpu_to_le_64(hns3_set_tuple_table[i].rss_field); 356 fields_count++; 357 } 358 } 359 360 /* 361 * When user does not specify the following types or a combination of 362 * the following types, it enables all fields for the supported RSS 363 * types. the following types as: 364 * - RTE_ETH_RSS_L3_SRC_ONLY 365 * - RTE_ETH_RSS_L3_DST_ONLY 366 * - RTE_ETH_RSS_L4_SRC_ONLY 367 * - RTE_ETH_RSS_L4_DST_ONLY 368 */ 369 if (fields_count == 0) { 370 for (i = 0; i < RTE_DIM(hns3_set_rss_types); i++) { 371 if ((rss_hf & hns3_set_rss_types[i].rss_types) == 372 hns3_set_rss_types[i].rss_types) 373 req->tuple_field |= rte_cpu_to_le_64( 374 hns3_set_rss_types[i].rss_field); 375 } 376 } 377 378 ret = hns3_cmd_send(hw, &desc, 1); 379 if (ret) { 380 hns3_err(hw, "Update RSS flow types tuples failed %d", ret); 381 return ret; 382 } 383 384 tuple->rss_tuple_fields = rte_le_to_cpu_64(req->tuple_field); 385 386 return 0; 387 } 388 389 /* 390 * Configure RSS hash protocols and hash key. 391 * @param dev 392 * Pointer to Ethernet device. 393 * @praram rss_conf 394 * The configuration select of rss key size and tuple flow_types. 395 * @return 396 * 0 on success, a negative errno value otherwise is set. 397 */ 398 int 399 hns3_dev_rss_hash_update(struct rte_eth_dev *dev, 400 struct rte_eth_rss_conf *rss_conf) 401 { 402 struct hns3_adapter *hns = dev->data->dev_private; 403 struct hns3_hw *hw = &hns->hw; 404 struct hns3_rss_tuple_cfg *tuple = &hw->rss_info.rss_tuple_sets; 405 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 406 uint8_t key_len = rss_conf->rss_key_len; 407 uint64_t rss_hf = rss_conf->rss_hf; 408 uint8_t *key = rss_conf->rss_key; 409 int ret; 410 411 if (hw->rss_dis_flag) 412 return -EINVAL; 413 414 rte_spinlock_lock(&hw->lock); 415 ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_hf); 416 if (ret) 417 goto conf_err; 418 419 if (rss_cfg->conf.types && rss_hf == 0) { 420 /* Disable RSS, reset indirection table by local variable */ 421 ret = hns3_rss_reset_indir_table(hw); 422 if (ret) 423 goto conf_err; 424 } else if (rss_hf && rss_cfg->conf.types == 0) { 425 /* Enable RSS, restore indirection table by hw's config */ 426 ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl, 427 hw->rss_ind_tbl_size); 428 if (ret) 429 goto conf_err; 430 } 431 432 /* Update supported flow types when set tuple success */ 433 rss_cfg->conf.types = rss_hf; 434 435 if (key) { 436 if (key_len != HNS3_RSS_KEY_SIZE) { 437 hns3_err(hw, "The hash key len(%u) is invalid", 438 key_len); 439 ret = -EINVAL; 440 goto conf_err; 441 } 442 ret = hns3_rss_set_algo_key(hw, key); 443 if (ret) 444 goto conf_err; 445 } 446 rte_spinlock_unlock(&hw->lock); 447 448 return 0; 449 450 conf_err: 451 rte_spinlock_unlock(&hw->lock); 452 return ret; 453 } 454 455 /* 456 * Get rss key and rss_hf types set of RSS hash configuration. 457 * @param dev 458 * Pointer to Ethernet device. 459 * @praram rss_conf 460 * The buffer to get rss key size and tuple types. 461 * @return 462 * 0 on success. 463 */ 464 int 465 hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev, 466 struct rte_eth_rss_conf *rss_conf) 467 { 468 struct hns3_adapter *hns = dev->data->dev_private; 469 struct hns3_hw *hw = &hns->hw; 470 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 471 472 rte_spinlock_lock(&hw->lock); 473 rss_conf->rss_hf = rss_cfg->conf.types; 474 475 /* Get the RSS Key required by the user */ 476 if (rss_conf->rss_key && rss_conf->rss_key_len >= HNS3_RSS_KEY_SIZE) { 477 memcpy(rss_conf->rss_key, rss_cfg->key, HNS3_RSS_KEY_SIZE); 478 rss_conf->rss_key_len = HNS3_RSS_KEY_SIZE; 479 } 480 rte_spinlock_unlock(&hw->lock); 481 482 return 0; 483 } 484 485 /* 486 * Update rss redirection table of RSS. 487 * @param dev 488 * Pointer to Ethernet device. 489 * @praram reta_conf 490 * Pointer to the configuration select of mask and redirection tables. 491 * @param reta_size 492 * Redirection table size. 493 * @return 494 * 0 on success, a negative errno value otherwise is set. 495 */ 496 int 497 hns3_dev_rss_reta_update(struct rte_eth_dev *dev, 498 struct rte_eth_rss_reta_entry64 *reta_conf, 499 uint16_t reta_size) 500 { 501 struct hns3_adapter *hns = dev->data->dev_private; 502 struct hns3_hw *hw = &hns->hw; 503 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 504 uint16_t indirection_tbl[HNS3_RSS_IND_TBL_SIZE_MAX]; 505 uint16_t idx, shift; 506 uint16_t i; 507 int ret; 508 509 if (reta_size != hw->rss_ind_tbl_size) { 510 hns3_err(hw, "The size of hash lookup table configured (%u)" 511 "doesn't match the number hardware can supported" 512 "(%u)", reta_size, hw->rss_ind_tbl_size); 513 return -EINVAL; 514 } 515 rte_spinlock_lock(&hw->lock); 516 memcpy(indirection_tbl, rss_cfg->rss_indirection_tbl, 517 sizeof(rss_cfg->rss_indirection_tbl)); 518 for (i = 0; i < reta_size; i++) { 519 idx = i / RTE_ETH_RETA_GROUP_SIZE; 520 shift = i % RTE_ETH_RETA_GROUP_SIZE; 521 if (reta_conf[idx].reta[shift] >= hw->alloc_rss_size) { 522 rte_spinlock_unlock(&hw->lock); 523 hns3_err(hw, "queue id(%u) set to redirection table " 524 "exceeds queue number(%u) allocated to a TC", 525 reta_conf[idx].reta[shift], 526 hw->alloc_rss_size); 527 return -EINVAL; 528 } 529 530 if (reta_conf[idx].mask & (1ULL << shift)) 531 indirection_tbl[i] = reta_conf[idx].reta[shift]; 532 } 533 534 ret = hns3_set_rss_indir_table(hw, indirection_tbl, 535 hw->rss_ind_tbl_size); 536 537 rte_spinlock_unlock(&hw->lock); 538 return ret; 539 } 540 541 /* 542 * Get rss redirection table of RSS hash configuration. 543 * @param dev 544 * Pointer to Ethernet device. 545 * @praram reta_conf 546 * Pointer to the configuration select of mask and redirection tables. 547 * @param reta_size 548 * Redirection table size. 549 * @return 550 * 0 on success, a negative errno value otherwise is set. 551 */ 552 int 553 hns3_dev_rss_reta_query(struct rte_eth_dev *dev, 554 struct rte_eth_rss_reta_entry64 *reta_conf, 555 uint16_t reta_size) 556 { 557 struct hns3_adapter *hns = dev->data->dev_private; 558 struct hns3_hw *hw = &hns->hw; 559 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 560 uint16_t idx, shift; 561 uint16_t i; 562 563 if (reta_size != hw->rss_ind_tbl_size) { 564 hns3_err(hw, "The size of hash lookup table configured (%u)" 565 " doesn't match the number hardware can supported" 566 "(%u)", reta_size, hw->rss_ind_tbl_size); 567 return -EINVAL; 568 } 569 rte_spinlock_lock(&hw->lock); 570 for (i = 0; i < reta_size; i++) { 571 idx = i / RTE_ETH_RETA_GROUP_SIZE; 572 shift = i % RTE_ETH_RETA_GROUP_SIZE; 573 if (reta_conf[idx].mask & (1ULL << shift)) 574 reta_conf[idx].reta[shift] = 575 rss_cfg->rss_indirection_tbl[i]; 576 } 577 rte_spinlock_unlock(&hw->lock); 578 return 0; 579 } 580 581 /* 582 * Used to configure the tc_size and tc_offset. 583 */ 584 static int 585 hns3_set_rss_tc_mode(struct hns3_hw *hw) 586 { 587 uint16_t rss_size = hw->alloc_rss_size; 588 struct hns3_rss_tc_mode_cmd *req; 589 uint16_t tc_offset[HNS3_MAX_TC_NUM]; 590 uint8_t tc_valid[HNS3_MAX_TC_NUM]; 591 uint16_t tc_size[HNS3_MAX_TC_NUM]; 592 struct hns3_cmd_desc desc; 593 uint16_t roundup_size; 594 uint16_t i; 595 int ret; 596 597 req = (struct hns3_rss_tc_mode_cmd *)desc.data; 598 599 roundup_size = roundup_pow_of_two(rss_size); 600 roundup_size = ilog2(roundup_size); 601 602 for (i = 0; i < HNS3_MAX_TC_NUM; i++) { 603 tc_valid[i] = !!(hw->hw_tc_map & BIT(i)); 604 tc_size[i] = roundup_size; 605 tc_offset[i] = rss_size * i; 606 } 607 608 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_TC_MODE, false); 609 for (i = 0; i < HNS3_MAX_TC_NUM; i++) { 610 uint16_t mode = 0; 611 612 hns3_set_bit(mode, HNS3_RSS_TC_VALID_B, (tc_valid[i] & 0x1)); 613 hns3_set_field(mode, HNS3_RSS_TC_SIZE_M, HNS3_RSS_TC_SIZE_S, 614 tc_size[i]); 615 if (tc_size[i] >> HNS3_RSS_TC_SIZE_MSB_OFFSET > 0) 616 hns3_set_bit(mode, HNS3_RSS_TC_SIZE_MSB_S, 1); 617 hns3_set_field(mode, HNS3_RSS_TC_OFFSET_M, HNS3_RSS_TC_OFFSET_S, 618 tc_offset[i]); 619 620 req->rss_tc_mode[i] = rte_cpu_to_le_16(mode); 621 } 622 ret = hns3_cmd_send(hw, &desc, 1); 623 if (ret) 624 hns3_err(hw, "Sets rss tc mode failed %d", ret); 625 626 return ret; 627 } 628 629 static void 630 hns3_rss_tuple_uninit(struct hns3_hw *hw) 631 { 632 struct hns3_cmd_desc desc; 633 int ret; 634 635 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false); 636 637 ret = hns3_cmd_send(hw, &desc, 1); 638 if (ret) { 639 hns3_err(hw, "RSS uninit tuple failed %d", ret); 640 return; 641 } 642 } 643 644 /* 645 * Set the default rss configuration in the init of driver. 646 */ 647 void 648 hns3_rss_set_default_args(struct hns3_hw *hw) 649 { 650 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 651 uint16_t queue_num = hw->alloc_rss_size; 652 int i; 653 654 /* Default hash algorithm */ 655 rss_cfg->conf.func = RTE_ETH_HASH_FUNCTION_TOEPLITZ; 656 657 /* Default RSS key */ 658 memcpy(rss_cfg->key, hns3_hash_key, HNS3_RSS_KEY_SIZE); 659 660 /* Initialize RSS indirection table */ 661 for (i = 0; i < hw->rss_ind_tbl_size; i++) 662 rss_cfg->rss_indirection_tbl[i] = i % queue_num; 663 } 664 665 /* 666 * RSS initialization for hns3 PMD. 667 */ 668 int 669 hns3_config_rss(struct hns3_adapter *hns) 670 { 671 struct hns3_hw *hw = &hns->hw; 672 struct hns3_rss_conf *rss_cfg = &hw->rss_info; 673 uint8_t *hash_key = rss_cfg->key; 674 int ret, ret1; 675 676 enum rte_eth_rx_mq_mode mq_mode = hw->data->dev_conf.rxmode.mq_mode; 677 678 switch (hw->rss_info.conf.func) { 679 case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR: 680 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE; 681 break; 682 case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ: 683 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP; 684 break; 685 default: 686 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ; 687 break; 688 } 689 690 /* When RSS is off, redirect the packet queue 0 */ 691 if (((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) == 0) 692 hns3_rss_uninit(hns); 693 694 /* Configure RSS hash algorithm and hash key offset */ 695 ret = hns3_rss_set_algo_key(hw, hash_key); 696 if (ret) 697 return ret; 698 699 /* Configure the tuple selection for RSS hash input */ 700 ret = hns3_rss_set_input_tuple(hw); 701 if (ret) 702 return ret; 703 704 /* 705 * When RSS is off, it doesn't need to configure rss redirection table 706 * to hardware. 707 */ 708 if (((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)) { 709 ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl, 710 hw->rss_ind_tbl_size); 711 if (ret) 712 goto rss_tuple_uninit; 713 } 714 715 ret = hns3_set_rss_tc_mode(hw); 716 if (ret) 717 goto rss_indir_table_uninit; 718 719 return ret; 720 721 rss_indir_table_uninit: 722 if (((uint32_t)mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)) { 723 ret1 = hns3_rss_reset_indir_table(hw); 724 if (ret1 != 0) 725 return ret; 726 } 727 728 rss_tuple_uninit: 729 hns3_rss_tuple_uninit(hw); 730 731 /* Disable RSS */ 732 hw->rss_info.conf.types = 0; 733 734 return ret; 735 } 736 737 /* 738 * RSS uninitialization for hns3 PMD. 739 */ 740 void 741 hns3_rss_uninit(struct hns3_adapter *hns) 742 { 743 struct hns3_hw *hw = &hns->hw; 744 int ret; 745 746 hns3_rss_tuple_uninit(hw); 747 ret = hns3_rss_reset_indir_table(hw); 748 if (ret != 0) 749 return; 750 751 /* Disable RSS */ 752 hw->rss_info.conf.types = 0; 753 } 754