xref: /dpdk/drivers/net/hns3/hns3_rss.c (revision 9e991f217fc8719e38a812dc280dba5f84db9f59)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2018-2019 Hisilicon Limited.
3  */
4 
5 #include <stdbool.h>
6 #include <rte_ethdev.h>
7 #include <rte_io.h>
8 #include <rte_malloc.h>
9 #include <rte_memcpy.h>
10 #include <rte_spinlock.h>
11 
12 #include "hns3_ethdev.h"
13 #include "hns3_logs.h"
14 
15 /*
16  * The hash key used for rss initialization.
17  */
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
24 };
25 
26 /*
27  * rss_generic_config command function, opcode:0x0D01.
28  * Used to set algorithm, key_offset and hash key of rss.
29  */
30 int
31 hns3_set_rss_algo_key(struct hns3_hw *hw, uint8_t hash_algo, const uint8_t *key)
32 {
33 #define HNS3_KEY_OFFSET_MAX	3
34 #define HNS3_SET_HASH_KEY_BYTE_FOUR	2
35 
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;
40 	uint8_t cur_offset;
41 	int ret;
42 
43 	req = (struct hns3_rss_generic_config_cmd *)desc.data;
44 
45 	/*
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.
49 	 */
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,
52 					  false);
53 
54 		req->hash_config |= (hash_algo & HNS3_RSS_HASH_ALGO_MASK);
55 		req->hash_config |= (key_offset << HNS3_RSS_HASH_KEY_OFFSET_B);
56 
57 		if (key_offset == HNS3_SET_HASH_KEY_BYTE_FOUR)
58 			key_size = HNS3_RSS_KEY_SIZE - HNS3_RSS_HASH_KEY_NUM *
59 			HNS3_SET_HASH_KEY_BYTE_FOUR;
60 		else
61 			key_size = HNS3_RSS_HASH_KEY_NUM;
62 
63 		cur_offset = key_offset * HNS3_RSS_HASH_KEY_NUM;
64 		key_cur = key + cur_offset;
65 		memcpy(req->hash_key, key_cur, key_size);
66 
67 		ret = hns3_cmd_send(hw, &desc, 1);
68 		if (ret) {
69 			hns3_err(hw, "Configure RSS algo key failed %d", ret);
70 			return ret;
71 		}
72 	}
73 	/* Update the shadow RSS key with user specified */
74 	memcpy(hw->rss_info.key, key, HNS3_RSS_KEY_SIZE);
75 	return 0;
76 }
77 
78 /*
79  * Used to configure the tuple selection for RSS hash input.
80  */
81 static int
82 hns3_set_rss_input_tuple(struct hns3_hw *hw)
83 {
84 	struct hns3_rss_conf *rss_config = &hw->rss_info;
85 	struct hns3_rss_input_tuple_cmd *req;
86 	struct hns3_cmd_desc desc_tuple;
87 	int ret;
88 
89 	hns3_cmd_setup_basic_desc(&desc_tuple, HNS3_OPC_RSS_INPUT_TUPLE, false);
90 
91 	req = (struct hns3_rss_input_tuple_cmd *)desc_tuple.data;
92 
93 	req->ipv4_tcp_en = rss_config->rss_tuple_sets.ipv4_tcp_en;
94 	req->ipv4_udp_en = rss_config->rss_tuple_sets.ipv4_udp_en;
95 	req->ipv4_sctp_en = rss_config->rss_tuple_sets.ipv4_sctp_en;
96 	req->ipv4_fragment_en = rss_config->rss_tuple_sets.ipv4_fragment_en;
97 	req->ipv6_tcp_en = rss_config->rss_tuple_sets.ipv6_tcp_en;
98 	req->ipv6_udp_en = rss_config->rss_tuple_sets.ipv6_udp_en;
99 	req->ipv6_sctp_en = rss_config->rss_tuple_sets.ipv6_sctp_en;
100 	req->ipv6_fragment_en = rss_config->rss_tuple_sets.ipv6_fragment_en;
101 
102 	ret = hns3_cmd_send(hw, &desc_tuple, 1);
103 	if (ret)
104 		hns3_err(hw, "Configure RSS input tuple mode failed %d", ret);
105 
106 	return ret;
107 }
108 
109 /*
110  * rss_indirection_table command function, opcode:0x0D07.
111  * Used to configure the indirection table of rss.
112  */
113 int
114 hns3_set_rss_indir_table(struct hns3_hw *hw, uint8_t *indir, uint16_t size)
115 {
116 	struct hns3_rss_indirection_table_cmd *req;
117 	struct hns3_cmd_desc desc;
118 	int ret, i, j, num;
119 
120 	req = (struct hns3_rss_indirection_table_cmd *)desc.data;
121 
122 	for (i = 0; i < size / HNS3_RSS_CFG_TBL_SIZE; i++) {
123 		hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INDIR_TABLE,
124 					  false);
125 		req->start_table_index =
126 				rte_cpu_to_le_16(i * HNS3_RSS_CFG_TBL_SIZE);
127 		req->rss_set_bitmap = rte_cpu_to_le_16(HNS3_RSS_SET_BITMAP_MSK);
128 		for (j = 0; j < HNS3_RSS_CFG_TBL_SIZE; j++) {
129 			num = i * HNS3_RSS_CFG_TBL_SIZE + j;
130 			req->rss_result[j] = indir[num] % hw->alloc_rss_size;
131 		}
132 		ret = hns3_cmd_send(hw, &desc, 1);
133 		if (ret) {
134 			hns3_err(hw,
135 				 "Sets RSS indirection table failed %d size %u",
136 				 ret, size);
137 			return ret;
138 		}
139 	}
140 
141 	/* Update redirection table of hw */
142 	memcpy(hw->rss_info.rss_indirection_tbl, indir,	HNS3_RSS_IND_TBL_SIZE);
143 
144 	return 0;
145 }
146 
147 int
148 hns3_rss_reset_indir_table(struct hns3_hw *hw)
149 {
150 	uint8_t *lut;
151 	int ret;
152 
153 	lut = rte_zmalloc("hns3_rss_lut", HNS3_RSS_IND_TBL_SIZE, 0);
154 	if (lut == NULL) {
155 		hns3_err(hw, "No hns3_rss_lut memory can be allocated");
156 		return -ENOMEM;
157 	}
158 
159 	ret = hns3_set_rss_indir_table(hw, lut, HNS3_RSS_IND_TBL_SIZE);
160 	if (ret)
161 		hns3_err(hw, "RSS uninit indir table failed: %d", ret);
162 	rte_free(lut);
163 
164 	return ret;
165 }
166 
167 int
168 hns3_set_rss_tuple_by_rss_hf(struct hns3_hw *hw,
169 			     struct hns3_rss_tuple_cfg *tuple, uint64_t rss_hf)
170 {
171 	struct hns3_rss_input_tuple_cmd *req;
172 	struct hns3_cmd_desc desc;
173 	uint32_t i;
174 	int ret;
175 
176 	hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false);
177 
178 	req = (struct hns3_rss_input_tuple_cmd *)desc.data;
179 
180 	/* Enable ipv4 or ipv6 tuple by flow type */
181 	for (i = 0; i < RTE_ETH_FLOW_MAX; i++) {
182 		switch (rss_hf & (1ULL << i)) {
183 		case ETH_RSS_NONFRAG_IPV4_TCP:
184 			req->ipv4_tcp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
185 			break;
186 		case ETH_RSS_NONFRAG_IPV4_UDP:
187 			req->ipv4_udp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
188 			break;
189 		case ETH_RSS_NONFRAG_IPV4_SCTP:
190 			req->ipv4_sctp_en = HNS3_RSS_INPUT_TUPLE_SCTP;
191 			break;
192 		case ETH_RSS_FRAG_IPV4:
193 			req->ipv4_fragment_en |= HNS3_IP_FRAG_BIT_MASK;
194 			break;
195 		case ETH_RSS_NONFRAG_IPV4_OTHER:
196 			req->ipv4_fragment_en |= HNS3_IP_OTHER_BIT_MASK;
197 			break;
198 		case ETH_RSS_NONFRAG_IPV6_TCP:
199 			req->ipv6_tcp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
200 			break;
201 		case ETH_RSS_NONFRAG_IPV6_UDP:
202 			req->ipv6_udp_en = HNS3_RSS_INPUT_TUPLE_OTHER;
203 			break;
204 		case ETH_RSS_NONFRAG_IPV6_SCTP:
205 			req->ipv6_sctp_en = HNS3_RSS_INPUT_TUPLE_SCTP;
206 			break;
207 		case ETH_RSS_FRAG_IPV6:
208 			req->ipv6_fragment_en |= HNS3_IP_FRAG_BIT_MASK;
209 			break;
210 		case ETH_RSS_NONFRAG_IPV6_OTHER:
211 			req->ipv6_fragment_en |= HNS3_IP_OTHER_BIT_MASK;
212 			break;
213 		default:
214 			/*
215 			 * rss_hf doesn't include unsupported flow types
216 			 * because the API framework has checked it, and
217 			 * this branch will never go unless rss_hf is zero.
218 			 */
219 			break;
220 		}
221 	}
222 
223 	ret = hns3_cmd_send(hw, &desc, 1);
224 	if (ret) {
225 		hns3_err(hw, "Update RSS flow types tuples failed %d", ret);
226 		return ret;
227 	}
228 
229 	tuple->ipv4_tcp_en = req->ipv4_tcp_en;
230 	tuple->ipv4_udp_en = req->ipv4_udp_en;
231 	tuple->ipv4_sctp_en = req->ipv4_sctp_en;
232 	tuple->ipv4_fragment_en = req->ipv4_fragment_en;
233 	tuple->ipv6_tcp_en = req->ipv6_tcp_en;
234 	tuple->ipv6_udp_en = req->ipv6_udp_en;
235 	tuple->ipv6_sctp_en = req->ipv6_sctp_en;
236 	tuple->ipv6_fragment_en = req->ipv6_fragment_en;
237 
238 	return 0;
239 }
240 
241 /*
242  * Configure RSS hash protocols and hash key.
243  * @param dev
244  *   Pointer to Ethernet device.
245  * @praram rss_conf
246  *   The configuration select of  rss key size and tuple flow_types.
247  * @return
248  *   0 on success, a negative errno value otherwise is set.
249  */
250 int
251 hns3_dev_rss_hash_update(struct rte_eth_dev *dev,
252 			 struct rte_eth_rss_conf *rss_conf)
253 {
254 	struct hns3_adapter *hns = dev->data->dev_private;
255 	struct hns3_hw *hw = &hns->hw;
256 	struct hns3_rss_tuple_cfg *tuple = &hw->rss_info.rss_tuple_sets;
257 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
258 	uint8_t key_len = rss_conf->rss_key_len;
259 	uint8_t algo;
260 	uint64_t rss_hf = rss_conf->rss_hf;
261 	uint8_t *key = rss_conf->rss_key;
262 	int ret;
263 
264 	rte_spinlock_lock(&hw->lock);
265 	ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_hf);
266 	if (ret)
267 		goto conf_err;
268 
269 	if (rss_cfg->conf.types && rss_hf == 0) {
270 		/* Disable RSS, reset indirection table by local variable */
271 		ret = hns3_rss_reset_indir_table(hw);
272 		if (ret)
273 			goto conf_err;
274 	} else if (rss_hf && rss_cfg->conf.types == 0) {
275 		/* Enable RSS, restore indirection table by hw's config */
276 		ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl,
277 					       HNS3_RSS_IND_TBL_SIZE);
278 		if (ret)
279 			goto conf_err;
280 	}
281 
282 	/* Update supported flow types when set tuple success */
283 	rss_cfg->conf.types = rss_hf;
284 
285 	if (key) {
286 		if (key_len != HNS3_RSS_KEY_SIZE) {
287 			hns3_err(hw, "The hash key len(%u) is invalid",
288 				 key_len);
289 			ret = -EINVAL;
290 			goto conf_err;
291 		}
292 		algo = rss_cfg->conf.func == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR ?
293 			HNS3_RSS_HASH_ALGO_SIMPLE : HNS3_RSS_HASH_ALGO_TOEPLITZ;
294 		ret = hns3_set_rss_algo_key(hw, algo, key);
295 		if (ret)
296 			goto conf_err;
297 	}
298 	rte_spinlock_unlock(&hw->lock);
299 
300 	return 0;
301 
302 conf_err:
303 	rte_spinlock_unlock(&hw->lock);
304 	return ret;
305 }
306 
307 /*
308  * Get rss key and rss_hf types set of RSS hash configuration.
309  * @param dev
310  *   Pointer to Ethernet device.
311  * @praram rss_conf
312  *   The buffer to get rss key size and tuple types.
313  * @return
314  *   0 on success.
315  */
316 int
317 hns3_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
318 			   struct rte_eth_rss_conf *rss_conf)
319 {
320 	struct hns3_adapter *hns = dev->data->dev_private;
321 	struct hns3_hw *hw = &hns->hw;
322 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
323 
324 	rte_spinlock_lock(&hw->lock);
325 	rss_conf->rss_hf = rss_cfg->conf.types;
326 
327 	/* Get the RSS Key required by the user */
328 	if (rss_conf->rss_key)
329 		memcpy(rss_conf->rss_key, rss_cfg->key, HNS3_RSS_KEY_SIZE);
330 	rte_spinlock_unlock(&hw->lock);
331 
332 	return 0;
333 }
334 
335 /*
336  * Update rss redirection table of RSS.
337  * @param dev
338  *   Pointer to Ethernet device.
339  * @praram reta_conf
340  *   Pointer to the configuration select of mask and redirection tables.
341  * @param reta_size
342  *   Redirection table size.
343  * @return
344  *   0 on success, a negative errno value otherwise is set.
345  */
346 int
347 hns3_dev_rss_reta_update(struct rte_eth_dev *dev,
348 			 struct rte_eth_rss_reta_entry64 *reta_conf,
349 			 uint16_t reta_size)
350 {
351 	struct hns3_adapter *hns = dev->data->dev_private;
352 	struct hns3_hw *hw = &hns->hw;
353 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
354 	uint16_t i, indir_size = HNS3_RSS_IND_TBL_SIZE; /* Table size is 512 */
355 	uint8_t indirection_tbl[HNS3_RSS_IND_TBL_SIZE];
356 	uint16_t idx, shift, allow_rss_queues;
357 	int ret;
358 
359 	if (reta_size != indir_size || reta_size > ETH_RSS_RETA_SIZE_512) {
360 		hns3_err(hw, "The size of hash lookup table configured (%u)"
361 			 "doesn't match the number hardware can supported"
362 			 "(%u)", reta_size, indir_size);
363 		return -EINVAL;
364 	}
365 	rte_spinlock_lock(&hw->lock);
366 	memcpy(indirection_tbl, rss_cfg->rss_indirection_tbl,
367 		HNS3_RSS_IND_TBL_SIZE);
368 	allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
369 	for (i = 0; i < reta_size; i++) {
370 		idx = i / RTE_RETA_GROUP_SIZE;
371 		shift = i % RTE_RETA_GROUP_SIZE;
372 		if (reta_conf[idx].reta[shift] >= allow_rss_queues) {
373 			rte_spinlock_unlock(&hw->lock);
374 			hns3_err(hw, "Invalid queue id(%u) to be set in "
375 				 "redirection table, max number of rss "
376 				 "queues: %u", reta_conf[idx].reta[shift],
377 				 allow_rss_queues);
378 			return -EINVAL;
379 		}
380 
381 		if (reta_conf[idx].mask & (1ULL << shift))
382 			indirection_tbl[i] = reta_conf[idx].reta[shift];
383 	}
384 
385 	ret = hns3_set_rss_indir_table(hw, indirection_tbl,
386 				       HNS3_RSS_IND_TBL_SIZE);
387 
388 	rte_spinlock_unlock(&hw->lock);
389 	return ret;
390 }
391 
392 /*
393  * Get rss redirection table of RSS hash configuration.
394  * @param dev
395  *   Pointer to Ethernet device.
396  * @praram reta_conf
397  *   Pointer to the configuration select of mask and redirection tables.
398  * @param reta_size
399  *   Redirection table size.
400  * @return
401  *   0 on success, a negative errno value otherwise is set.
402  */
403 int
404 hns3_dev_rss_reta_query(struct rte_eth_dev *dev,
405 			struct rte_eth_rss_reta_entry64 *reta_conf,
406 			uint16_t reta_size)
407 {
408 	struct hns3_adapter *hns = dev->data->dev_private;
409 	struct hns3_hw *hw = &hns->hw;
410 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
411 	uint16_t i, indir_size = HNS3_RSS_IND_TBL_SIZE; /* Table size is 512 */
412 	uint16_t idx, shift;
413 
414 	if (reta_size != indir_size || reta_size > ETH_RSS_RETA_SIZE_512) {
415 		hns3_err(hw, "The size of hash lookup table configured (%u)"
416 			 " doesn't match the number hardware can supported"
417 			 "(%u)", reta_size, indir_size);
418 		return -EINVAL;
419 	}
420 	rte_spinlock_lock(&hw->lock);
421 	for (i = 0; i < reta_size; i++) {
422 		idx = i / RTE_RETA_GROUP_SIZE;
423 		shift = i % RTE_RETA_GROUP_SIZE;
424 		if (reta_conf[idx].mask & (1ULL << shift))
425 			reta_conf[idx].reta[shift] =
426 			  rss_cfg->rss_indirection_tbl[i] % hw->alloc_rss_size;
427 	}
428 	rte_spinlock_unlock(&hw->lock);
429 	return 0;
430 }
431 
432 /*
433  * Used to configure the tc_size and tc_offset.
434  */
435 static int
436 hns3_set_rss_tc_mode(struct hns3_hw *hw)
437 {
438 	uint16_t rss_size = hw->alloc_rss_size;
439 	struct hns3_rss_tc_mode_cmd *req;
440 	uint16_t tc_offset[HNS3_MAX_TC_NUM];
441 	uint8_t tc_valid[HNS3_MAX_TC_NUM];
442 	uint16_t tc_size[HNS3_MAX_TC_NUM];
443 	struct hns3_cmd_desc desc;
444 	uint16_t roundup_size;
445 	uint16_t i;
446 	int ret;
447 
448 	req = (struct hns3_rss_tc_mode_cmd *)desc.data;
449 
450 	roundup_size = roundup_pow_of_two(rss_size);
451 	roundup_size = ilog2(roundup_size);
452 
453 	for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
454 		tc_valid[i] = !!(hw->hw_tc_map & BIT(i));
455 		tc_size[i] = roundup_size;
456 		tc_offset[i] = rss_size * i;
457 	}
458 
459 	hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_TC_MODE, false);
460 	for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
461 		uint16_t mode = 0;
462 
463 		hns3_set_bit(mode, HNS3_RSS_TC_VALID_B, (tc_valid[i] & 0x1));
464 		hns3_set_field(mode, HNS3_RSS_TC_SIZE_M, HNS3_RSS_TC_SIZE_S,
465 			       tc_size[i]);
466 		hns3_set_field(mode, HNS3_RSS_TC_OFFSET_M, HNS3_RSS_TC_OFFSET_S,
467 			       tc_offset[i]);
468 
469 		req->rss_tc_mode[i] = rte_cpu_to_le_16(mode);
470 	}
471 	ret = hns3_cmd_send(hw, &desc, 1);
472 	if (ret)
473 		hns3_err(hw, "Sets rss tc mode failed %d", ret);
474 
475 	return ret;
476 }
477 
478 static void
479 hns3_rss_tuple_uninit(struct hns3_hw *hw)
480 {
481 	struct hns3_rss_input_tuple_cmd *req;
482 	struct hns3_cmd_desc desc;
483 	int ret;
484 
485 	hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RSS_INPUT_TUPLE, false);
486 
487 	req = (struct hns3_rss_input_tuple_cmd *)desc.data;
488 
489 	memset(req, 0, sizeof(struct hns3_rss_tuple_cfg));
490 
491 	ret = hns3_cmd_send(hw, &desc, 1);
492 	if (ret) {
493 		hns3_err(hw, "RSS uninit tuple failed %d", ret);
494 		return;
495 	}
496 }
497 
498 /*
499  * Set the default rss configuration in the init of driver.
500  */
501 void
502 hns3_set_default_rss_args(struct hns3_hw *hw)
503 {
504 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
505 	uint16_t queue_num = hw->alloc_rss_size;
506 	int i;
507 
508 	/* Default hash algorithm */
509 	rss_cfg->conf.func = RTE_ETH_HASH_FUNCTION_TOEPLITZ;
510 
511 	/* Default RSS key */
512 	memcpy(rss_cfg->key, hns3_hash_key, HNS3_RSS_KEY_SIZE);
513 
514 	/* Initialize RSS indirection table */
515 	for (i = 0; i < HNS3_RSS_IND_TBL_SIZE; i++)
516 		rss_cfg->rss_indirection_tbl[i] = i % queue_num;
517 }
518 
519 /*
520  * RSS initialization for hns3 pmd driver.
521  */
522 int
523 hns3_config_rss(struct hns3_adapter *hns)
524 {
525 	struct hns3_hw *hw = &hns->hw;
526 	struct hns3_rss_conf *rss_cfg = &hw->rss_info;
527 	uint8_t hash_algo =
528 		(hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
529 		 HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
530 	uint8_t *hash_key = rss_cfg->key;
531 	int ret, ret1;
532 
533 	enum rte_eth_rx_mq_mode mq_mode = hw->data->dev_conf.rxmode.mq_mode;
534 
535 	/* When there is no open RSS, redirect the packet queue 0 */
536 	if (((uint32_t)mq_mode & ETH_MQ_RX_RSS_FLAG) == 0)
537 		hns3_rss_uninit(hns);
538 
539 	/* Configure RSS hash algorithm and hash key offset */
540 	ret = hns3_set_rss_algo_key(hw, hash_algo, hash_key);
541 	if (ret)
542 		return ret;
543 
544 	/* Configure the tuple selection for RSS hash input */
545 	ret = hns3_set_rss_input_tuple(hw);
546 	if (ret)
547 		return ret;
548 
549 	ret = hns3_set_rss_indir_table(hw, rss_cfg->rss_indirection_tbl,
550 				       HNS3_RSS_IND_TBL_SIZE);
551 	if (ret)
552 		goto rss_tuple_uninit;
553 
554 	ret = hns3_set_rss_tc_mode(hw);
555 	if (ret)
556 		goto rss_indir_table_uninit;
557 
558 	return ret;
559 
560 rss_indir_table_uninit:
561 	ret1 = hns3_rss_reset_indir_table(hw);
562 	if (ret1 != 0)
563 		return ret;
564 
565 rss_tuple_uninit:
566 	hns3_rss_tuple_uninit(hw);
567 
568 	/* Disable RSS */
569 	hw->rss_info.conf.types = 0;
570 
571 	return ret;
572 }
573 
574 /*
575  * RSS uninitialization for hns3 pmd driver.
576  */
577 void
578 hns3_rss_uninit(struct hns3_adapter *hns)
579 {
580 	struct hns3_hw *hw = &hns->hw;
581 	int ret;
582 
583 	hns3_rss_tuple_uninit(hw);
584 	ret = hns3_rss_reset_indir_table(hw);
585 	if (ret != 0)
586 		return;
587 
588 	/* Disable RSS */
589 	hw->rss_info.conf.types = 0;
590 }
591