1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018-2019 Hisilicon Limited.
6 #include <rte_ethdev.h>
8 #include <rte_malloc.h>
9 #include <rte_memcpy.h>
10 #include <rte_spinlock.h>
12 #include "hns3_ethdev.h"
13 #include "hns3_logs.h"
16 * The hash key used for rss initialization.
18 static const uint8_t hns3_hash_key[] = {
19 0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
20 0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
21 0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
22 0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
23 0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
27 * rss_generic_config command function, opcode:0x0D01.
28 * Used to set algorithm, key_offset and hash key of rss.
31 hns3_set_rss_algo_key(struct hns3_hw *hw, const uint8_t *key)
33 #define HNS3_KEY_OFFSET_MAX 3
34 #define HNS3_SET_HASH_KEY_BYTE_FOUR 2
36 struct hns3_rss_generic_config_cmd *req;
37 struct hns3_cmd_desc desc;
38 uint32_t key_offset, key_size;
39 const uint8_t *key_cur;
43 req = (struct hns3_rss_generic_config_cmd *)desc.data;
46 * key_offset=0, hash key byte0~15 is set to hardware.
47 * key_offset=1, hash key byte16~31 is set to hardware.
48 * key_offset=2, hash key byte32~39 is set to hardware.
50 for (key_offset = 0; key_offset < HNS3_KEY_OFFSET_MAX; key_offset++) {
51 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_GENERIC_CONFIG,
55 (hw->rss_info.hash_algo & HNS3_RSS_HASH_ALGO_MASK);
56 req->hash_config |= (key_offset << HNS3_RSS_HASH_KEY_OFFSET_B);
58 if (key_offset == HNS3_SET_HASH_KEY_BYTE_FOUR)
59 key_size = HNS3_RSS_KEY_SIZE - HNS3_RSS_HASH_KEY_NUM *
60 HNS3_SET_HASH_KEY_BYTE_FOUR;
62 key_size = HNS3_RSS_HASH_KEY_NUM;
64 cur_offset = key_offset * HNS3_RSS_HASH_KEY_NUM;
65 key_cur = key + cur_offset;
66 memcpy(req->hash_key, key_cur, key_size);
68 ret = hns3_cmd_send(hw, &desc, 1);
70 hns3_err(hw, "Configure RSS algo key failed %d", ret);
74 /* Update the shadow RSS key with user specified */
75 memcpy(hw->rss_info.key, key, HNS3_RSS_KEY_SIZE);
80 * Used to configure the tuple selection for RSS hash input.
83 hns3_set_rss_input_tuple(struct hns3_hw *hw)
85 struct hns3_rss_conf *rss_config = &hw->rss_info;
86 struct hns3_rss_input_tuple_cmd *req;
87 struct hns3_cmd_desc desc_tuple;
90 hns3_cmd_setup_basic_desc(&desc_tuple, HNS3_OPC_RSS_INPUT_TUPLE, false);
92 req = (struct hns3_rss_input_tuple_cmd *)desc_tuple.data;
94 req->ipv4_tcp_en = rss_config->rss_tuple_sets.ipv4_tcp_en;
95 req->ipv4_udp_en = rss_config->rss_tuple_sets.ipv4_udp_en;
96 req->ipv4_sctp_en = rss_config->rss_tuple_sets.ipv4_sctp_en;
97 req->ipv4_fragment_en = rss_config->rss_tuple_sets.ipv4_fragment_en;
98 req->ipv6_tcp_en = rss_config->rss_tuple_sets.ipv6_tcp_en;
99 req->ipv6_udp_en = rss_config->rss_tuple_sets.ipv6_udp_en;
100 req->ipv6_sctp_en = rss_config->rss_tuple_sets.ipv6_sctp_en;
101 req->ipv6_fragment_en = rss_config->rss_tuple_sets.ipv6_fragment_en;
103 ret = hns3_cmd_send(hw, &desc_tuple, 1);
105 hns3_err(hw, "Configure RSS input tuple mode failed %d", ret);
111 * rss_indirection_table command function, opcode:0x0D07.
112 * Used to configure the indirection table of rss.
115 hns3_set_rss_indir_table(struct hns3_hw *hw, uint8_t *indir, uint16_t size)
117 struct hns3_rss_indirection_table_cmd *req;
118 struct hns3_cmd_desc desc;
121 req = (struct hns3_rss_indirection_table_cmd *)desc.data;
123 for (i = 0; i < size / HNS3_RSS_CFG_TBL_SIZE; i++) {
124 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INDIR_TABLE,
126 req->start_table_index =
127 rte_cpu_to_le_16(i * HNS3_RSS_CFG_TBL_SIZE);
128 req->rss_set_bitmap = rte_cpu_to_le_16(HNS3_RSS_SET_BITMAP_MSK);
129 for (j = 0; j < HNS3_RSS_CFG_TBL_SIZE; j++) {
130 num = i * HNS3_RSS_CFG_TBL_SIZE + j;
131 req->rss_result[j] = indir[num];
133 ret = hns3_cmd_send(hw, &desc, 1);
136 "Sets RSS indirection table failed %d size %u",
142 /* Update redirection table of hw */
143 memcpy(hw->rss_info.rss_indirection_tbl, indir, HNS3_RSS_IND_TBL_SIZE);
149 hns3_rss_reset_indir_table(struct hns3_hw *hw)
154 lut = rte_zmalloc("hns3_rss_lut", HNS3_RSS_IND_TBL_SIZE, 0);
156 hns3_err(hw, "No hns3_rss_lut memory can be allocated");
160 ret = hns3_set_rss_indir_table(hw, lut, HNS3_RSS_IND_TBL_SIZE);
162 hns3_err(hw, "RSS uninit indir table failed: %d", ret);
169 hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw,
170 struct hns3_rss_tuple_cfg *tuple, uint64_t rss_hf)
172 struct hns3_rss_input_tuple_cmd *req;
173 struct hns3_cmd_desc desc;
177 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false);
179 req = (struct hns3_rss_input_tuple_cmd *)desc.data;
181 /* Enable ipv4 or ipv6 tuple by flow type */
182 for (i = 0; i < RTE_ETH_FLOW_MAX; i++) {
183 switch (rss_hf & (1ULL << i)) {
184 case ETH_RSS_NONFRAG_IPV4_TCP:
185 req->ipv4_tcp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
187 case ETH_RSS_NONFRAG_IPV4_UDP:
188 req->ipv4_udp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
190 case ETH_RSS_NONFRAG_IPV4_SCTP:
191 req->ipv4_sctp_en = HNS3_RSS_INPUT_TUPLE_SCTP;
193 case ETH_RSS_FRAG_IPV4:
194 req->ipv4_fragment_en |= HNS3_IP_FRAG_BIT_MASK;
196 case ETH_RSS_NONFRAG_IPV4_OTHER:
197 req->ipv4_fragment_en |= HNS3_IP_OTHER_BIT_MASK;
199 case ETH_RSS_NONFRAG_IPV6_TCP:
200 req->ipv6_tcp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
202 case ETH_RSS_NONFRAG_IPV6_UDP:
203 req->ipv6_udp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
205 case ETH_RSS_NONFRAG_IPV6_SCTP:
206 req->ipv6_sctp_en = HNS3_RSS_INPUT_TUPLE_SCTP;
208 case ETH_RSS_FRAG_IPV6:
209 req->ipv6_fragment_en |= HNS3_IP_FRAG_BIT_MASK;
211 case ETH_RSS_NONFRAG_IPV6_OTHER:
212 req->ipv6_fragment_en |= HNS3_IP_OTHER_BIT_MASK;
216 * rss_hf doesn't include unsupported flow types
217 * because the API framework has checked it, and
218 * this branch will never go unless rss_hf is zero.
224 ret = hns3_cmd_send(hw, &desc, 1);
226 hns3_err(hw, "Update RSS flow types tuples failed %d", ret);
230 tuple->ipv4_tcp_en = req->ipv4_tcp_en;
231 tuple->ipv4_udp_en = req->ipv4_udp_en;
232 tuple->ipv4_sctp_en = req->ipv4_sctp_en;
233 tuple->ipv4_fragment_en = req->ipv4_fragment_en;
234 tuple->ipv6_tcp_en = req->ipv6_tcp_en;
235 tuple->ipv6_udp_en = req->ipv6_udp_en;
236 tuple->ipv6_sctp_en = req->ipv6_sctp_en;
237 tuple->ipv6_fragment_en = req->ipv6_fragment_en;
243 * Configure RSS hash protocols and hash key.
245 * Pointer to Ethernet device.
247 * The configuration select of rss key size and tuple flow_types.
249 * 0 on success, a negative errno value otherwise is set.
252 hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
253 struct rte_eth_rss_conf *rss_conf)
255 struct hns3_adapter *hns = dev->data->dev_private;
256 struct hns3_hw *hw = &hns->hw;
257 struct hns3_rss_tuple_cfg *tuple = &hw->rss_info.rss_tuple_sets;
258 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
259 uint8_t key_len = rss_conf->rss_key_len;
260 uint64_t rss_hf = rss_conf->rss_hf;
261 uint8_t *key = rss_conf->rss_key;
264 if (hw->rss_dis_flag)
267 rte_spinlock_lock(&hw->lock);
268 ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_hf);
272 if (rss_cfg->conf.types && rss_hf == 0) {
273 /* Disable RSS, reset indirection table by local variable */
274 ret = hns3_rss_reset_indir_table(hw);
277 } else if (rss_hf && rss_cfg->conf.types == 0) {
278 /* Enable RSS, restore indirection table by hw's config */
279 ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl,
280 HNS3_RSS_IND_TBL_SIZE);
285 /* Update supported flow types when set tuple success */
286 rss_cfg->conf.types = rss_hf;
289 if (key_len != HNS3_RSS_KEY_SIZE) {
290 hns3_err(hw, "The hash key len(%u) is invalid",
295 ret = hns3_set_rss_algo_key(hw, key);
299 rte_spinlock_unlock(&hw->lock);
304 rte_spinlock_unlock(&hw->lock);
309 * Get rss key and rss_hf types set of RSS hash configuration.
311 * Pointer to Ethernet device.
313 * The buffer to get rss key size and tuple types.
318 hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
319 struct rte_eth_rss_conf *rss_conf)
321 struct hns3_adapter *hns = dev->data->dev_private;
322 struct hns3_hw *hw = &hns->hw;
323 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
325 rte_spinlock_lock(&hw->lock);
326 rss_conf->rss_hf = rss_cfg->conf.types;
328 /* Get the RSS Key required by the user */
329 if (rss_conf->rss_key && rss_conf->rss_key_len >= HNS3_RSS_KEY_SIZE) {
330 memcpy(rss_conf->rss_key, rss_cfg->key, HNS3_RSS_KEY_SIZE);
331 rss_conf->rss_key_len = HNS3_RSS_KEY_SIZE;
333 rte_spinlock_unlock(&hw->lock);
339 * Update rss redirection table of RSS.
341 * Pointer to Ethernet device.
343 * Pointer to the configuration select of mask and redirection tables.
345 * Redirection table size.
347 * 0 on success, a negative errno value otherwise is set.
350 hns3_dev_rss_reta_update(struct rte_eth_dev *dev,
351 struct rte_eth_rss_reta_entry64 *reta_conf,
354 struct hns3_adapter *hns = dev->data->dev_private;
355 struct hns3_hw *hw = &hns->hw;
356 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
357 uint16_t i, indir_size = HNS3_RSS_IND_TBL_SIZE; /* Table size is 512 */
358 uint8_t indirection_tbl[HNS3_RSS_IND_TBL_SIZE];
359 uint16_t idx, shift, allow_rss_queues;
362 if (reta_size != indir_size || reta_size > ETH_RSS_RETA_SIZE_512) {
363 hns3_err(hw, "The size of hash lookup table configured (%u)"
364 "doesn't match the number hardware can supported"
365 "(%u)", reta_size, indir_size);
368 rte_spinlock_lock(&hw->lock);
369 memcpy(indirection_tbl, rss_cfg->rss_indirection_tbl,
370 HNS3_RSS_IND_TBL_SIZE);
371 allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
372 for (i = 0; i < reta_size; i++) {
373 idx = i / RTE_RETA_GROUP_SIZE;
374 shift = i % RTE_RETA_GROUP_SIZE;
375 if (reta_conf[idx].reta[shift] >= allow_rss_queues) {
376 rte_spinlock_unlock(&hw->lock);
377 hns3_err(hw, "Invalid queue id(%u) to be set in "
378 "redirection table, max number of rss "
379 "queues: %u", reta_conf[idx].reta[shift],
384 if (reta_conf[idx].mask & (1ULL << shift))
385 indirection_tbl[i] = reta_conf[idx].reta[shift];
388 ret = hns3_set_rss_indir_table(hw, indirection_tbl,
389 HNS3_RSS_IND_TBL_SIZE);
391 rte_spinlock_unlock(&hw->lock);
396 * Get rss redirection table of RSS hash configuration.
398 * Pointer to Ethernet device.
400 * Pointer to the configuration select of mask and redirection tables.
402 * Redirection table size.
404 * 0 on success, a negative errno value otherwise is set.
407 hns3_dev_rss_reta_query(struct rte_eth_dev *dev,
408 struct rte_eth_rss_reta_entry64 *reta_conf,
411 struct hns3_adapter *hns = dev->data->dev_private;
412 struct hns3_hw *hw = &hns->hw;
413 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
414 uint16_t i, indir_size = HNS3_RSS_IND_TBL_SIZE; /* Table size is 512 */
417 if (reta_size != indir_size || reta_size > ETH_RSS_RETA_SIZE_512) {
418 hns3_err(hw, "The size of hash lookup table configured (%u)"
419 " doesn't match the number hardware can supported"
420 "(%u)", reta_size, indir_size);
423 rte_spinlock_lock(&hw->lock);
424 for (i = 0; i < reta_size; i++) {
425 idx = i / RTE_RETA_GROUP_SIZE;
426 shift = i % RTE_RETA_GROUP_SIZE;
427 if (reta_conf[idx].mask & (1ULL << shift))
428 reta_conf[idx].reta[shift] =
429 rss_cfg->rss_indirection_tbl[i];
431 rte_spinlock_unlock(&hw->lock);
436 * Used to configure the tc_size and tc_offset.
439 hns3_set_rss_tc_mode(struct hns3_hw *hw)
441 uint16_t rss_size = hw->alloc_rss_size;
442 struct hns3_rss_tc_mode_cmd *req;
443 uint16_t tc_offset[HNS3_MAX_TC_NUM];
444 uint8_t tc_valid[HNS3_MAX_TC_NUM];
445 uint16_t tc_size[HNS3_MAX_TC_NUM];
446 struct hns3_cmd_desc desc;
447 uint16_t roundup_size;
451 req = (struct hns3_rss_tc_mode_cmd *)desc.data;
453 roundup_size = roundup_pow_of_two(rss_size);
454 roundup_size = ilog2(roundup_size);
456 for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
457 tc_valid[i] = !!(hw->hw_tc_map & BIT(i));
458 tc_size[i] = roundup_size;
459 tc_offset[i] = rss_size * i;
462 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_TC_MODE, false);
463 for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
466 hns3_set_bit(mode, HNS3_RSS_TC_VALID_B, (tc_valid[i] & 0x1));
467 hns3_set_field(mode, HNS3_RSS_TC_SIZE_M, HNS3_RSS_TC_SIZE_S,
469 hns3_set_field(mode, HNS3_RSS_TC_OFFSET_M, HNS3_RSS_TC_OFFSET_S,
472 req->rss_tc_mode[i] = rte_cpu_to_le_16(mode);
474 ret = hns3_cmd_send(hw, &desc, 1);
476 hns3_err(hw, "Sets rss tc mode failed %d", ret);
482 hns3_rss_tuple_uninit(struct hns3_hw *hw)
484 struct hns3_rss_input_tuple_cmd *req;
485 struct hns3_cmd_desc desc;
488 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false);
490 req = (struct hns3_rss_input_tuple_cmd *)desc.data;
492 memset(req, 0, sizeof(struct hns3_rss_tuple_cfg));
494 ret = hns3_cmd_send(hw, &desc, 1);
496 hns3_err(hw, "RSS uninit tuple failed %d", ret);
502 * Set the default rss configuration in the init of driver.
505 hns3_set_default_rss_args(struct hns3_hw *hw)
507 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
508 uint16_t queue_num = hw->alloc_rss_size;
511 /* Default hash algorithm */
512 rss_cfg->conf.func = RTE_ETH_HASH_FUNCTION_TOEPLITZ;
514 /* Default RSS key */
515 memcpy(rss_cfg->key, hns3_hash_key, HNS3_RSS_KEY_SIZE);
517 /* Initialize RSS indirection table */
518 for (i = 0; i < HNS3_RSS_IND_TBL_SIZE; i++)
519 rss_cfg->rss_indirection_tbl[i] = i % queue_num;
523 * RSS initialization for hns3 pmd driver.
526 hns3_config_rss(struct hns3_adapter *hns)
528 struct hns3_hw *hw = &hns->hw;
529 struct hns3_rss_conf *rss_cfg = &hw->rss_info;
530 uint8_t *hash_key = rss_cfg->key;
533 enum rte_eth_rx_mq_mode mq_mode = hw->data->dev_conf.rxmode.mq_mode;
535 switch (hw->rss_info.conf.func) {
536 case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
537 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
539 case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
540 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
543 hw->rss_info.hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
547 /* When RSS is off, redirect the packet queue 0 */
548 if (((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG) == 0)
549 hns3_rss_uninit(hns);
551 /* Configure RSS hash algorithm and hash key offset */
552 ret = hns3_set_rss_algo_key(hw, hash_key);
556 /* Configure the tuple selection for RSS hash input */
557 ret = hns3_set_rss_input_tuple(hw);
562 * When RSS is off, it doesn't need to configure rss redirection table
565 if (((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG)) {
566 ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl,
567 HNS3_RSS_IND_TBL_SIZE);
569 goto rss_tuple_uninit;
572 ret = hns3_set_rss_tc_mode(hw);
574 goto rss_indir_table_uninit;
578 rss_indir_table_uninit:
579 if (((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG)) {
580 ret1 = hns3_rss_reset_indir_table(hw);
586 hns3_rss_tuple_uninit(hw);
589 hw->rss_info.conf.types = 0;
595 * RSS uninitialization for hns3 pmd driver.
598 hns3_rss_uninit(struct hns3_adapter *hns)
600 struct hns3_hw *hw = &hns->hw;
603 hns3_rss_tuple_uninit(hw);
604 ret = hns3_rss_reset_indir_table(hw);
609 hw->rss_info.conf.types = 0;