numam-dpdk/drivers/net/ena/ena_rss.c
David Marchand 2449949584 net/ena: fix build with GCC 12
GCC 12 raises the following warning:

In file included from ../lib/mempool/rte_mempool.h:46,
                 from ../lib/mbuf/rte_mbuf.h:38,
                 from ../lib/net/rte_ether.h:22,
                 from ../drivers/net/ena/ena_ethdev.h:10,
                 from ../drivers/net/ena/ena_rss.c:6:
../drivers/net/ena/ena_rss.c: In function ‘ena_rss_key_fill’:
../lib/eal/x86/include/rte_memcpy.h:370:9: warning: array subscript 64 is
        outside array bounds of ‘uint8_t[40]’
        {aka ‘unsigned char[40]’} [-Warray-bounds]
  370 | rte_mov32((uint8_t *)dst + 2 * 32, (const uint8_t *)src + 2 * 32);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/ena/ena_rss.c:51:24: note: while referencing ‘default_key’
   51 | static uint8_t default_key[ENA_HASH_KEY_SIZE];
      |                ^~~~~~~~~~~

This is a false positive because the copied size is checked against
ENA_HASH_KEY_SIZE in a (build) assert.
Silence this warning by calling memcpy with the minimal size.

Bugzilla ID: 849
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2022-06-15 10:19:18 +02:00

590 lines
16 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* All rights reserved.
*/
#include "ena_ethdev.h"
#include "ena_logs.h"
#include <ena_admin_defs.h>
#define TEST_BIT(val, bit_shift) ((val) & (1UL << (bit_shift)))
#define ENA_HF_RSS_ALL_L2 (ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA)
#define ENA_HF_RSS_ALL_L3 (ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA)
#define ENA_HF_RSS_ALL_L4 (ENA_ADMIN_RSS_L4_SP | ENA_ADMIN_RSS_L4_DP)
#define ENA_HF_RSS_ALL_L3_L4 (ENA_HF_RSS_ALL_L3 | ENA_HF_RSS_ALL_L4)
#define ENA_HF_RSS_ALL_L2_L3_L4 (ENA_HF_RSS_ALL_L2 | ENA_HF_RSS_ALL_L3_L4)
enum ena_rss_hash_fields {
ENA_HF_RSS_TCP4 = ENA_HF_RSS_ALL_L3_L4,
ENA_HF_RSS_UDP4 = ENA_HF_RSS_ALL_L3_L4,
ENA_HF_RSS_TCP6 = ENA_HF_RSS_ALL_L3_L4,
ENA_HF_RSS_UDP6 = ENA_HF_RSS_ALL_L3_L4,
ENA_HF_RSS_IP4 = ENA_HF_RSS_ALL_L3,
ENA_HF_RSS_IP6 = ENA_HF_RSS_ALL_L3,
ENA_HF_RSS_IP4_FRAG = ENA_HF_RSS_ALL_L3,
ENA_HF_RSS_NOT_IP = ENA_HF_RSS_ALL_L2,
ENA_HF_RSS_TCP6_EX = ENA_HF_RSS_ALL_L3_L4,
ENA_HF_RSS_IP6_EX = ENA_HF_RSS_ALL_L3,
};
static int ena_fill_indirect_table_default(struct ena_com_dev *ena_dev,
size_t tbl_size,
size_t queue_num);
static uint64_t ena_admin_hf_to_eth_hf(enum ena_admin_flow_hash_proto proto,
uint16_t field);
static uint16_t ena_eth_hf_to_admin_hf(enum ena_admin_flow_hash_proto proto,
uint64_t rss_hf);
static int ena_set_hash_fields(struct ena_com_dev *ena_dev, uint64_t rss_hf);
static int ena_rss_hash_set(struct ena_com_dev *ena_dev,
struct rte_eth_rss_conf *rss_conf,
bool default_allowed);
static void ena_reorder_rss_hash_key(uint8_t *reordered_key,
uint8_t *key,
size_t key_size);
static int ena_get_rss_hash_key(struct ena_com_dev *ena_dev, uint8_t *rss_key);
void ena_rss_key_fill(void *key, size_t size)
{
static bool key_generated;
static uint8_t default_key[ENA_HASH_KEY_SIZE];
size_t i;
if (!key_generated) {
for (i = 0; i < RTE_DIM(default_key); ++i)
default_key[i] = rte_rand() & 0xff;
key_generated = true;
}
RTE_ASSERT(size <= sizeof(default_key));
rte_memcpy(key, default_key, RTE_MIN(size, sizeof(default_key)));
}
int ena_rss_reta_update(struct rte_eth_dev *dev,
struct rte_eth_rss_reta_entry64 *reta_conf,
uint16_t reta_size)
{
struct ena_adapter *adapter = dev->data->dev_private;
struct ena_com_dev *ena_dev = &adapter->ena_dev;
int rc, i;
u16 entry_value;
int conf_idx;
int idx;
if (reta_size == 0 || reta_conf == NULL)
return -EINVAL;
if (!(dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_RSS_HASH)) {
PMD_DRV_LOG(ERR,
"RSS was not configured for the PMD\n");
return -ENOTSUP;
}
if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
PMD_DRV_LOG(WARNING,
"Requested indirection table size (%d) is bigger than supported: %d\n",
reta_size, ENA_RX_RSS_TABLE_SIZE);
return -EINVAL;
}
/* Prevent RETA table structure update races */
rte_spinlock_lock(&adapter->admin_lock);
for (i = 0 ; i < reta_size ; i++) {
/* Each reta_conf is for 64 entries.
* To support 128 we use 2 conf of 64.
*/
conf_idx = i / RTE_ETH_RETA_GROUP_SIZE;
idx = i % RTE_ETH_RETA_GROUP_SIZE;
if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
entry_value =
ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
rc = ena_com_indirect_table_fill_entry(ena_dev, i,
entry_value);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR,
"Cannot fill indirection table\n");
return rc;
}
}
}
rc = ena_mp_indirect_table_set(adapter);
rte_spinlock_unlock(&adapter->admin_lock);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR, "Cannot set the indirection table\n");
return rc;
}
PMD_DRV_LOG(DEBUG, "RSS configured %d entries for port %d\n",
reta_size, dev->data->port_id);
return 0;
}
/* Query redirection table. */
int ena_rss_reta_query(struct rte_eth_dev *dev,
struct rte_eth_rss_reta_entry64 *reta_conf,
uint16_t reta_size)
{
uint32_t indirect_table[ENA_RX_RSS_TABLE_SIZE];
struct ena_adapter *adapter = dev->data->dev_private;
int rc;
int i;
int reta_conf_idx;
int reta_idx;
if (reta_size == 0 || reta_conf == NULL)
return -EINVAL;
if (!(dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_RSS_HASH)) {
PMD_DRV_LOG(ERR,
"RSS was not configured for the PMD\n");
return -ENOTSUP;
}
rte_spinlock_lock(&adapter->admin_lock);
rc = ena_mp_indirect_table_get(adapter, indirect_table);
rte_spinlock_unlock(&adapter->admin_lock);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR, "Cannot get indirection table\n");
return rc;
}
for (i = 0 ; i < reta_size ; i++) {
reta_conf_idx = i / RTE_ETH_RETA_GROUP_SIZE;
reta_idx = i % RTE_ETH_RETA_GROUP_SIZE;
if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
reta_conf[reta_conf_idx].reta[reta_idx] =
ENA_IO_RXQ_IDX_REV(indirect_table[i]);
}
return 0;
}
static int ena_fill_indirect_table_default(struct ena_com_dev *ena_dev,
size_t tbl_size,
size_t queue_num)
{
size_t i;
int rc;
uint16_t val;
for (i = 0; i < tbl_size; ++i) {
val = i % queue_num;
rc = ena_com_indirect_table_fill_entry(ena_dev, i,
ENA_IO_RXQ_IDX(val));
if (unlikely(rc != 0)) {
PMD_DRV_LOG(DEBUG,
"Failed to set %zu indirection table entry with val %" PRIu16 "\n",
i, val);
return rc;
}
}
return 0;
}
static uint64_t ena_admin_hf_to_eth_hf(enum ena_admin_flow_hash_proto proto,
uint16_t fields)
{
uint64_t rss_hf = 0;
/* If no fields are activated, then RSS is disabled for this proto */
if ((fields & ENA_HF_RSS_ALL_L2_L3_L4) == 0)
return 0;
/* Convert proto to ETH flag */
switch (proto) {
case ENA_ADMIN_RSS_TCP4:
rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_TCP;
break;
case ENA_ADMIN_RSS_UDP4:
rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_UDP;
break;
case ENA_ADMIN_RSS_TCP6:
rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_TCP;
break;
case ENA_ADMIN_RSS_UDP6:
rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_UDP;
break;
case ENA_ADMIN_RSS_IP4:
rss_hf |= RTE_ETH_RSS_IPV4;
break;
case ENA_ADMIN_RSS_IP6:
rss_hf |= RTE_ETH_RSS_IPV6;
break;
case ENA_ADMIN_RSS_IP4_FRAG:
rss_hf |= RTE_ETH_RSS_FRAG_IPV4;
break;
case ENA_ADMIN_RSS_NOT_IP:
rss_hf |= RTE_ETH_RSS_L2_PAYLOAD;
break;
case ENA_ADMIN_RSS_TCP6_EX:
rss_hf |= RTE_ETH_RSS_IPV6_TCP_EX;
break;
case ENA_ADMIN_RSS_IP6_EX:
rss_hf |= RTE_ETH_RSS_IPV6_EX;
break;
default:
break;
};
/* Check if only DA or SA is being used for L3. */
switch (fields & ENA_HF_RSS_ALL_L3) {
case ENA_ADMIN_RSS_L3_SA:
rss_hf |= RTE_ETH_RSS_L3_SRC_ONLY;
break;
case ENA_ADMIN_RSS_L3_DA:
rss_hf |= RTE_ETH_RSS_L3_DST_ONLY;
break;
default:
break;
};
/* Check if only DA or SA is being used for L4. */
switch (fields & ENA_HF_RSS_ALL_L4) {
case ENA_ADMIN_RSS_L4_SP:
rss_hf |= RTE_ETH_RSS_L4_SRC_ONLY;
break;
case ENA_ADMIN_RSS_L4_DP:
rss_hf |= RTE_ETH_RSS_L4_DST_ONLY;
break;
default:
break;
};
return rss_hf;
}
static uint16_t ena_eth_hf_to_admin_hf(enum ena_admin_flow_hash_proto proto,
uint64_t rss_hf)
{
uint16_t fields_mask = 0;
/* L2 always uses source and destination addresses. */
fields_mask = ENA_ADMIN_RSS_L2_DA | ENA_ADMIN_RSS_L2_SA;
/* Determine which fields of L3 should be used. */
switch (rss_hf & (RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY)) {
case RTE_ETH_RSS_L3_DST_ONLY:
fields_mask |= ENA_ADMIN_RSS_L3_DA;
break;
case RTE_ETH_RSS_L3_SRC_ONLY:
fields_mask |= ENA_ADMIN_RSS_L3_SA;
break;
default:
/*
* If SRC nor DST aren't set, it means both of them should be
* used.
*/
fields_mask |= ENA_HF_RSS_ALL_L3;
}
/* Determine which fields of L4 should be used. */
switch (rss_hf & (RTE_ETH_RSS_L4_SRC_ONLY | RTE_ETH_RSS_L4_DST_ONLY)) {
case RTE_ETH_RSS_L4_DST_ONLY:
fields_mask |= ENA_ADMIN_RSS_L4_DP;
break;
case RTE_ETH_RSS_L4_SRC_ONLY:
fields_mask |= ENA_ADMIN_RSS_L4_SP;
break;
default:
/*
* If SRC nor DST aren't set, it means both of them should be
* used.
*/
fields_mask |= ENA_HF_RSS_ALL_L4;
}
/* Return appropriate hash fields. */
switch (proto) {
case ENA_ADMIN_RSS_TCP4:
return ENA_HF_RSS_TCP4 & fields_mask;
case ENA_ADMIN_RSS_UDP4:
return ENA_HF_RSS_UDP4 & fields_mask;
case ENA_ADMIN_RSS_TCP6:
return ENA_HF_RSS_TCP6 & fields_mask;
case ENA_ADMIN_RSS_UDP6:
return ENA_HF_RSS_UDP6 & fields_mask;
case ENA_ADMIN_RSS_IP4:
return ENA_HF_RSS_IP4 & fields_mask;
case ENA_ADMIN_RSS_IP6:
return ENA_HF_RSS_IP6 & fields_mask;
case ENA_ADMIN_RSS_IP4_FRAG:
return ENA_HF_RSS_IP4_FRAG & fields_mask;
case ENA_ADMIN_RSS_NOT_IP:
return ENA_HF_RSS_NOT_IP & fields_mask;
case ENA_ADMIN_RSS_TCP6_EX:
return ENA_HF_RSS_TCP6_EX & fields_mask;
case ENA_ADMIN_RSS_IP6_EX:
return ENA_HF_RSS_IP6_EX & fields_mask;
default:
break;
}
return 0;
}
static int ena_set_hash_fields(struct ena_com_dev *ena_dev, uint64_t rss_hf)
{
struct ena_admin_proto_input selected_fields[ENA_ADMIN_RSS_PROTO_NUM] = {};
int rc, i;
/* Turn on appropriate fields for each requested packet type */
if ((rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_TCP) != 0)
selected_fields[ENA_ADMIN_RSS_TCP4].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP4, rss_hf);
if ((rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_UDP) != 0)
selected_fields[ENA_ADMIN_RSS_UDP4].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_UDP4, rss_hf);
if ((rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_TCP) != 0)
selected_fields[ENA_ADMIN_RSS_TCP6].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP6, rss_hf);
if ((rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_UDP) != 0)
selected_fields[ENA_ADMIN_RSS_UDP6].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_UDP6, rss_hf);
if ((rss_hf & RTE_ETH_RSS_IPV4) != 0)
selected_fields[ENA_ADMIN_RSS_IP4].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP4, rss_hf);
if ((rss_hf & RTE_ETH_RSS_IPV6) != 0)
selected_fields[ENA_ADMIN_RSS_IP6].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP6, rss_hf);
if ((rss_hf & RTE_ETH_RSS_FRAG_IPV4) != 0)
selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP4_FRAG, rss_hf);
if ((rss_hf & RTE_ETH_RSS_L2_PAYLOAD) != 0)
selected_fields[ENA_ADMIN_RSS_NOT_IP].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_NOT_IP, rss_hf);
if ((rss_hf & RTE_ETH_RSS_IPV6_TCP_EX) != 0)
selected_fields[ENA_ADMIN_RSS_TCP6_EX].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP6_EX, rss_hf);
if ((rss_hf & RTE_ETH_RSS_IPV6_EX) != 0)
selected_fields[ENA_ADMIN_RSS_IP6_EX].fields =
ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP6_EX, rss_hf);
/* Try to write them to the device */
for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; i++) {
rc = ena_com_fill_hash_ctrl(ena_dev,
(enum ena_admin_flow_hash_proto)i,
selected_fields[i].fields);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(DEBUG,
"Failed to set ENA HF %d with fields %" PRIu16 "\n",
i, selected_fields[i].fields);
return rc;
}
}
return 0;
}
static int ena_rss_hash_set(struct ena_com_dev *ena_dev,
struct rte_eth_rss_conf *rss_conf,
bool default_allowed)
{
uint8_t hw_rss_key[ENA_HASH_KEY_SIZE];
uint8_t *rss_key;
int rc;
if (rss_conf->rss_key != NULL) {
/* Reorder the RSS key bytes for the hardware requirements. */
ena_reorder_rss_hash_key(hw_rss_key, rss_conf->rss_key,
ENA_HASH_KEY_SIZE);
rss_key = hw_rss_key;
} else {
rss_key = NULL;
}
/* If the rss_key is NULL, then the randomized key will be used. */
rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_TOEPLITZ,
rss_key, ENA_HASH_KEY_SIZE, 0);
if (rc != 0 && !(default_allowed && rc == ENA_COM_UNSUPPORTED)) {
PMD_DRV_LOG(ERR,
"Failed to set RSS hash function in the device\n");
return rc;
}
rc = ena_set_hash_fields(ena_dev, rss_conf->rss_hf);
if (rc == ENA_COM_UNSUPPORTED) {
if (rss_conf->rss_key == NULL && !default_allowed) {
PMD_DRV_LOG(ERR,
"Setting RSS hash fields is not supported\n");
return -ENOTSUP;
}
PMD_DRV_LOG(WARNING,
"Setting RSS hash fields is not supported. Using default values: 0x%" PRIx64 "\n",
(uint64_t)(ENA_ALL_RSS_HF));
} else if (rc != 0) {
PMD_DRV_LOG(ERR, "Failed to set RSS hash fields\n");
return rc;
}
return 0;
}
/* ENA HW interprets the RSS key in reverse bytes order. Because of that, the
* key must be processed upon interaction with ena_com layer.
*/
static void ena_reorder_rss_hash_key(uint8_t *reordered_key,
uint8_t *key,
size_t key_size)
{
size_t i, rev_i;
for (i = 0, rev_i = key_size - 1; i < key_size; ++i, --rev_i)
reordered_key[i] = key[rev_i];
}
static int ena_get_rss_hash_key(struct ena_com_dev *ena_dev, uint8_t *rss_key)
{
uint8_t hw_rss_key[ENA_HASH_KEY_SIZE];
int rc;
/* The default RSS hash key cannot be retrieved from the HW. Unless it's
* explicitly set, this operation shouldn't be supported.
*/
if (ena_dev->rss.hash_key == NULL) {
PMD_DRV_LOG(WARNING,
"Retrieving default RSS hash key is not supported\n");
return -ENOTSUP;
}
rc = ena_com_get_hash_key(ena_dev, hw_rss_key);
if (rc != 0)
return rc;
ena_reorder_rss_hash_key(rss_key, hw_rss_key, ENA_HASH_KEY_SIZE);
return 0;
}
int ena_rss_configure(struct ena_adapter *adapter)
{
struct rte_eth_rss_conf *rss_conf;
struct ena_com_dev *ena_dev;
int rc;
ena_dev = &adapter->ena_dev;
rss_conf = &adapter->edev_data->dev_conf.rx_adv_conf.rss_conf;
if (adapter->edev_data->nb_rx_queues == 0)
return 0;
/* Restart the indirection table. The number of queues could change
* between start/stop calls, so it must be reinitialized with default
* values.
*/
rc = ena_fill_indirect_table_default(ena_dev, ENA_RX_RSS_TABLE_SIZE,
adapter->edev_data->nb_rx_queues);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR,
"Failed to fill indirection table with default values\n");
return rc;
}
rc = ena_com_indirect_table_set(ena_dev);
if (unlikely(rc != 0 && rc != ENA_COM_UNSUPPORTED)) {
PMD_DRV_LOG(ERR,
"Failed to set indirection table in the device\n");
return rc;
}
rc = ena_rss_hash_set(ena_dev, rss_conf, true);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR, "Failed to set RSS hash\n");
return rc;
}
PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
adapter->edev_data->port_id);
return 0;
}
int ena_rss_hash_update(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf)
{
struct ena_adapter *adapter = dev->data->dev_private;
int rc;
rte_spinlock_lock(&adapter->admin_lock);
rc = ena_rss_hash_set(&adapter->ena_dev, rss_conf, false);
rte_spinlock_unlock(&adapter->admin_lock);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR, "Failed to set RSS hash\n");
return rc;
}
return 0;
}
int ena_rss_hash_conf_get(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf)
{
struct ena_adapter *adapter = dev->data->dev_private;
struct ena_com_dev *ena_dev = &adapter->ena_dev;
enum ena_admin_flow_hash_proto proto;
uint64_t rss_hf = 0;
int rc, i;
uint16_t admin_hf;
static bool warn_once;
if (!(dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_RSS_HASH)) {
PMD_DRV_LOG(ERR, "RSS was not configured for the PMD\n");
return -ENOTSUP;
}
if (rss_conf->rss_key != NULL) {
rc = ena_get_rss_hash_key(ena_dev, rss_conf->rss_key);
if (unlikely(rc != 0)) {
PMD_DRV_LOG(ERR,
"Cannot retrieve RSS hash key, err: %d\n",
rc);
return rc;
}
}
for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; ++i) {
proto = (enum ena_admin_flow_hash_proto)i;
rte_spinlock_lock(&adapter->admin_lock);
rc = ena_com_get_hash_ctrl(ena_dev, proto, &admin_hf);
rte_spinlock_unlock(&adapter->admin_lock);
if (rc == ENA_COM_UNSUPPORTED) {
/* As some devices may support only reading rss hash
* key and not the hash ctrl, we want to notify the
* caller that this feature is only partially supported
* and do not return an error - the caller could be
* interested only in the key value.
*/
if (!warn_once) {
PMD_DRV_LOG(WARNING,
"Reading hash control from the device is not supported. .rss_hf will contain a default value.\n");
warn_once = true;
}
rss_hf = ENA_ALL_RSS_HF;
break;
} else if (rc != 0) {
PMD_DRV_LOG(ERR,
"Failed to retrieve hash ctrl for proto: %d with err: %d\n",
i, rc);
return rc;
}
rss_hf |= ena_admin_hf_to_eth_hf(proto, admin_hf);
}
rss_conf->rss_hf = rss_hf;
return 0;
}