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numam-dpdk/drivers/net/i40e/i40e_hash.c
Alvin Zhang 52a6478257 net/i40e: fix out of scope variable 
Using "key", which points to an out-of-scope variable "rss_key_default".

Coverity issue: 365293
Fixes: ef4c16fd91 ("net/i40e: refactor RSS flow")

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
2021-01-19 13:49:41 +01:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2020 Intel Corporation
*/
#include <sys/queue.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <rte_malloc.h>
#include <rte_tailq.h>
#include "base/i40e_prototype.h"
#include "i40e_logs.h"
#include "i40e_ethdev.h"
#include "i40e_hash.h"
#ifndef BIT
#define BIT(n) (1UL << (n))
#endif
#ifndef BIT_ULL
#define BIT_ULL(n) (1ULL << (n))
#endif
/* Pattern item headers */
#define I40E_HASH_HDR_ETH 0x01ULL
#define I40E_HASH_HDR_IPV4 0x10ULL
#define I40E_HASH_HDR_IPV6 0x20ULL
#define I40E_HASH_HDR_TCP 0x100ULL
#define I40E_HASH_HDR_UDP 0x200ULL
#define I40E_HASH_HDR_SCTP 0x400ULL
#define I40E_HASH_HDR_ESP 0x10000ULL
#define I40E_HASH_HDR_L2TPV3 0x20000ULL
#define I40E_HASH_HDR_AH 0x40000ULL
#define I40E_HASH_HDR_GTPC 0x100000ULL
#define I40E_HASH_HDR_GTPU 0x200000ULL
#define I40E_HASH_HDR_INNER_SHIFT 32
#define I40E_HASH_HDR_IPV4_INNER (I40E_HASH_HDR_IPV4 << \
I40E_HASH_HDR_INNER_SHIFT)
#define I40E_HASH_HDR_IPV6_INNER (I40E_HASH_HDR_IPV6 << \
I40E_HASH_HDR_INNER_SHIFT)
/* ETH */
#define I40E_PHINT_ETH I40E_HASH_HDR_ETH
/* IPv4 */
#define I40E_PHINT_IPV4 (I40E_HASH_HDR_ETH | I40E_HASH_HDR_IPV4)
#define I40E_PHINT_IPV4_TCP (I40E_PHINT_IPV4 | I40E_HASH_HDR_TCP)
#define I40E_PHINT_IPV4_UDP (I40E_PHINT_IPV4 | I40E_HASH_HDR_UDP)
#define I40E_PHINT_IPV4_SCTP (I40E_PHINT_IPV4 | I40E_HASH_HDR_SCTP)
/* IPv6 */
#define I40E_PHINT_IPV6 (I40E_HASH_HDR_ETH | I40E_HASH_HDR_IPV6)
#define I40E_PHINT_IPV6_TCP (I40E_PHINT_IPV6 | I40E_HASH_HDR_TCP)
#define I40E_PHINT_IPV6_UDP (I40E_PHINT_IPV6 | I40E_HASH_HDR_UDP)
#define I40E_PHINT_IPV6_SCTP (I40E_PHINT_IPV6 | I40E_HASH_HDR_SCTP)
/* ESP */
#define I40E_PHINT_IPV4_ESP (I40E_PHINT_IPV4 | I40E_HASH_HDR_ESP)
#define I40E_PHINT_IPV6_ESP (I40E_PHINT_IPV6 | I40E_HASH_HDR_ESP)
#define I40E_PHINT_IPV4_UDP_ESP (I40E_PHINT_IPV4_UDP | \
I40E_HASH_HDR_ESP)
#define I40E_PHINT_IPV6_UDP_ESP (I40E_PHINT_IPV6_UDP | \
I40E_HASH_HDR_ESP)
/* GTPC */
#define I40E_PHINT_IPV4_GTPC (I40E_PHINT_IPV4_UDP | \
I40E_HASH_HDR_GTPC)
#define I40E_PHINT_IPV6_GTPC (I40E_PHINT_IPV6_UDP | \
I40E_HASH_HDR_GTPC)
/* GTPU */
#define I40E_PHINT_IPV4_GTPU (I40E_PHINT_IPV4_UDP | \
I40E_HASH_HDR_GTPU)
#define I40E_PHINT_IPV4_GTPU_IPV4 (I40E_PHINT_IPV4_GTPU | \
I40E_HASH_HDR_IPV4_INNER)
#define I40E_PHINT_IPV4_GTPU_IPV6 (I40E_PHINT_IPV4_GTPU | \
I40E_HASH_HDR_IPV6_INNER)
#define I40E_PHINT_IPV6_GTPU (I40E_PHINT_IPV6_UDP | \
I40E_HASH_HDR_GTPU)
#define I40E_PHINT_IPV6_GTPU_IPV4 (I40E_PHINT_IPV6_GTPU | \
I40E_HASH_HDR_IPV4_INNER)
#define I40E_PHINT_IPV6_GTPU_IPV6 (I40E_PHINT_IPV6_GTPU | \
I40E_HASH_HDR_IPV6_INNER)
/* L2TPV3 */
#define I40E_PHINT_IPV4_L2TPV3 (I40E_PHINT_IPV4 | I40E_HASH_HDR_L2TPV3)
#define I40E_PHINT_IPV6_L2TPV3 (I40E_PHINT_IPV6 | I40E_HASH_HDR_L2TPV3)
/* AH */
#define I40E_PHINT_IPV4_AH (I40E_PHINT_IPV4 | I40E_HASH_HDR_AH)
#define I40E_PHINT_IPV6_AH (I40E_PHINT_IPV6 | I40E_HASH_HDR_AH)
/* Structure of mapping RSS type to input set */
struct i40e_hash_map_rss_inset {
uint64_t rss_type;
uint64_t inset;
};
const struct i40e_hash_map_rss_inset i40e_hash_rss_inset[] = {
/* IPv4 */
{ ETH_RSS_IPV4, I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST },
{ ETH_RSS_FRAG_IPV4, I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST },
{ ETH_RSS_NONFRAG_IPV4_OTHER,
I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST },
{ ETH_RSS_NONFRAG_IPV4_TCP, I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT },
{ ETH_RSS_NONFRAG_IPV4_UDP, I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT },
{ ETH_RSS_NONFRAG_IPV4_SCTP, I40E_INSET_IPV4_SRC | I40E_INSET_IPV4_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT | I40E_INSET_SCTP_VT },
/* IPv6 */
{ ETH_RSS_IPV6, I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST },
{ ETH_RSS_FRAG_IPV6, I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST },
{ ETH_RSS_NONFRAG_IPV6_OTHER,
I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST },
{ ETH_RSS_NONFRAG_IPV6_TCP, I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT },
{ ETH_RSS_NONFRAG_IPV6_UDP, I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT },
{ ETH_RSS_NONFRAG_IPV6_SCTP, I40E_INSET_IPV6_SRC | I40E_INSET_IPV6_DST |
I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT | I40E_INSET_SCTP_VT },
/* Port */
{ ETH_RSS_PORT, I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT },
/* Ether */
{ ETH_RSS_L2_PAYLOAD, I40E_INSET_LAST_ETHER_TYPE },
{ ETH_RSS_ETH, I40E_INSET_DMAC | I40E_INSET_SMAC },
/* VLAN */
{ ETH_RSS_S_VLAN, I40E_INSET_VLAN_OUTER },
{ ETH_RSS_C_VLAN, I40E_INSET_VLAN_INNER },
};
#define I40E_HASH_VOID_NEXT_ALLOW BIT_ULL(RTE_FLOW_ITEM_TYPE_ETH)
#define I40E_HASH_ETH_NEXT_ALLOW (BIT_ULL(RTE_FLOW_ITEM_TYPE_IPV4) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_IPV6) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_VLAN))
#define I40E_HASH_IP_NEXT_ALLOW (BIT_ULL(RTE_FLOW_ITEM_TYPE_TCP) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_UDP) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_SCTP) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_ESP) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_L2TPV3OIP) |\
BIT_ULL(RTE_FLOW_ITEM_TYPE_AH))
#define I40E_HASH_UDP_NEXT_ALLOW (BIT_ULL(RTE_FLOW_ITEM_TYPE_GTPU) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_GTPC))
#define I40E_HASH_GTPU_NEXT_ALLOW (BIT_ULL(RTE_FLOW_ITEM_TYPE_IPV4) | \
BIT_ULL(RTE_FLOW_ITEM_TYPE_IPV6))
static const uint64_t pattern_next_allow_items[] = {
[RTE_FLOW_ITEM_TYPE_VOID] = I40E_HASH_VOID_NEXT_ALLOW,
[RTE_FLOW_ITEM_TYPE_ETH] = I40E_HASH_ETH_NEXT_ALLOW,
[RTE_FLOW_ITEM_TYPE_IPV4] = I40E_HASH_IP_NEXT_ALLOW,
[RTE_FLOW_ITEM_TYPE_IPV6] = I40E_HASH_IP_NEXT_ALLOW,
[RTE_FLOW_ITEM_TYPE_UDP] = I40E_HASH_UDP_NEXT_ALLOW,
[RTE_FLOW_ITEM_TYPE_GTPU] = I40E_HASH_GTPU_NEXT_ALLOW,
};
static const uint64_t pattern_item_header[] = {
[RTE_FLOW_ITEM_TYPE_ETH] = I40E_HASH_HDR_ETH,
[RTE_FLOW_ITEM_TYPE_IPV4] = I40E_HASH_HDR_IPV4,
[RTE_FLOW_ITEM_TYPE_IPV6] = I40E_HASH_HDR_IPV6,
[RTE_FLOW_ITEM_TYPE_TCP] = I40E_HASH_HDR_TCP,
[RTE_FLOW_ITEM_TYPE_UDP] = I40E_HASH_HDR_UDP,
[RTE_FLOW_ITEM_TYPE_SCTP] = I40E_HASH_HDR_SCTP,
[RTE_FLOW_ITEM_TYPE_ESP] = I40E_HASH_HDR_ESP,
[RTE_FLOW_ITEM_TYPE_GTPC] = I40E_HASH_HDR_GTPC,
[RTE_FLOW_ITEM_TYPE_GTPU] = I40E_HASH_HDR_GTPU,
[RTE_FLOW_ITEM_TYPE_L2TPV3OIP] = I40E_HASH_HDR_L2TPV3,
[RTE_FLOW_ITEM_TYPE_AH] = I40E_HASH_HDR_AH,
};
/* Structure of matched pattern */
struct i40e_hash_match_pattern {
uint64_t pattern_type;
uint64_t rss_mask; /* Supported RSS type for this pattern */
bool custom_pctype_flag;/* true for custom packet type */
uint8_t pctype;
};
#define I40E_HASH_MAP_PATTERN(pattern, rss_mask, pctype) { \
pattern, rss_mask, false, pctype }
#define I40E_HASH_MAP_CUS_PATTERN(pattern, rss_mask, cus_pctype) { \
pattern, rss_mask, true, cus_pctype }
#define I40E_HASH_L2_RSS_MASK (ETH_RSS_ETH | ETH_RSS_L2_SRC_ONLY | \
ETH_RSS_L2_DST_ONLY)
#define I40E_HASH_L23_RSS_MASK (I40E_HASH_L2_RSS_MASK | \
ETH_RSS_VLAN | \
ETH_RSS_L3_SRC_ONLY | \
ETH_RSS_L3_DST_ONLY)
#define I40E_HASH_IPV4_L23_RSS_MASK (ETH_RSS_IPV4 | I40E_HASH_L23_RSS_MASK)
#define I40E_HASH_IPV6_L23_RSS_MASK (ETH_RSS_IPV6 | I40E_HASH_L23_RSS_MASK)
#define I40E_HASH_L234_RSS_MASK (I40E_HASH_L23_RSS_MASK | \
ETH_RSS_PORT | ETH_RSS_L4_SRC_ONLY | \
ETH_RSS_L4_DST_ONLY)
#define I40E_HASH_IPV4_L234_RSS_MASK (I40E_HASH_L234_RSS_MASK | ETH_RSS_IPV4)
#define I40E_HASH_IPV6_L234_RSS_MASK (I40E_HASH_L234_RSS_MASK | ETH_RSS_IPV6)
#define I40E_HASH_L4_TYPES (ETH_RSS_NONFRAG_IPV4_TCP | \
ETH_RSS_NONFRAG_IPV4_UDP | \
ETH_RSS_NONFRAG_IPV4_SCTP | \
ETH_RSS_NONFRAG_IPV6_TCP | \
ETH_RSS_NONFRAG_IPV6_UDP | \
ETH_RSS_NONFRAG_IPV6_SCTP)
/* Current supported patterns and RSS types.
* All items that have the same pattern types are together.
*/
static const struct i40e_hash_match_pattern match_patterns[] = {
/* Ether */
I40E_HASH_MAP_PATTERN(I40E_PHINT_ETH,
ETH_RSS_L2_PAYLOAD | I40E_HASH_L2_RSS_MASK,
I40E_FILTER_PCTYPE_L2_PAYLOAD),
/* IPv4 */
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV4,
ETH_RSS_FRAG_IPV4 | I40E_HASH_IPV4_L23_RSS_MASK,
I40E_FILTER_PCTYPE_FRAG_IPV4),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV4,
ETH_RSS_NONFRAG_IPV4_OTHER |
I40E_HASH_IPV4_L23_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV4_OTHER),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV4_TCP,
ETH_RSS_NONFRAG_IPV4_TCP |
I40E_HASH_IPV4_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV4_TCP),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV4_UDP,
ETH_RSS_NONFRAG_IPV4_UDP |
I40E_HASH_IPV4_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV4_UDP),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV4_SCTP,
ETH_RSS_NONFRAG_IPV4_SCTP |
I40E_HASH_IPV4_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV4_SCTP),
/* IPv6 */
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV6,
ETH_RSS_FRAG_IPV6 | I40E_HASH_IPV6_L23_RSS_MASK,
I40E_FILTER_PCTYPE_FRAG_IPV6),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV6,
ETH_RSS_NONFRAG_IPV6_OTHER |
I40E_HASH_IPV6_L23_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV6_OTHER),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV6_TCP,
ETH_RSS_NONFRAG_IPV6_TCP |
I40E_HASH_IPV6_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV6_TCP),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV6_UDP,
ETH_RSS_NONFRAG_IPV6_UDP |
I40E_HASH_IPV6_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV6_UDP),
I40E_HASH_MAP_PATTERN(I40E_PHINT_IPV6_SCTP,
ETH_RSS_NONFRAG_IPV6_SCTP |
I40E_HASH_IPV6_L234_RSS_MASK,
I40E_FILTER_PCTYPE_NONF_IPV6_SCTP),
/* ESP */
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_ESP,
ETH_RSS_ESP, I40E_CUSTOMIZED_ESP_IPV4),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_ESP,
ETH_RSS_ESP, I40E_CUSTOMIZED_ESP_IPV6),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_UDP_ESP,
ETH_RSS_ESP, I40E_CUSTOMIZED_ESP_IPV4_UDP),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_UDP_ESP,
ETH_RSS_ESP, I40E_CUSTOMIZED_ESP_IPV6_UDP),
/* GTPC */
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_GTPC,
I40E_HASH_IPV4_L234_RSS_MASK,
I40E_CUSTOMIZED_GTPC),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_GTPC,
I40E_HASH_IPV6_L234_RSS_MASK,
I40E_CUSTOMIZED_GTPC),
/* GTPU */
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_GTPU,
I40E_HASH_IPV4_L234_RSS_MASK,
I40E_CUSTOMIZED_GTPU),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_GTPU_IPV4,
ETH_RSS_GTPU, I40E_CUSTOMIZED_GTPU_IPV4),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_GTPU_IPV6,
ETH_RSS_GTPU, I40E_CUSTOMIZED_GTPU_IPV6),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_GTPU,
I40E_HASH_IPV6_L234_RSS_MASK,
I40E_CUSTOMIZED_GTPU),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_GTPU_IPV4,
ETH_RSS_GTPU, I40E_CUSTOMIZED_GTPU_IPV4),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_GTPU_IPV6,
ETH_RSS_GTPU, I40E_CUSTOMIZED_GTPU_IPV6),
/* L2TPV3 */
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_L2TPV3,
ETH_RSS_L2TPV3, I40E_CUSTOMIZED_IPV4_L2TPV3),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_L2TPV3,
ETH_RSS_L2TPV3, I40E_CUSTOMIZED_IPV6_L2TPV3),
/* AH */
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV4_AH, ETH_RSS_AH,
I40E_CUSTOMIZED_AH_IPV4),
I40E_HASH_MAP_CUS_PATTERN(I40E_PHINT_IPV6_AH, ETH_RSS_AH,
I40E_CUSTOMIZED_AH_IPV6),
};
static int
i40e_hash_get_pattern_type(const struct rte_flow_item pattern[],
uint64_t *pattern_types,
struct rte_flow_error *error)
{
const char *message = "Pattern not supported";
enum rte_flow_item_type prev_item_type = RTE_FLOW_ITEM_TYPE_VOID;
enum rte_flow_item_type last_item_type = prev_item_type;
uint64_t item_hdr, pattern_hdrs = 0;
bool inner_flag = false;
int vlan_count = 0;
for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
if (pattern->type == RTE_FLOW_ITEM_TYPE_VOID)
continue;
if (pattern->mask || pattern->spec || pattern->last) {
message = "Header info should not be specified";
goto not_sup;
}
/* Check the previous item allows this sub-item. */
if (prev_item_type >= (enum rte_flow_item_type)
RTE_DIM(pattern_next_allow_items) ||
!(pattern_next_allow_items[prev_item_type] &
BIT_ULL(pattern->type)))
goto not_sup;
/* For VLAN item, it does no matter about to pattern type
* recognition. So just count the number of VLAN and do not
* change the value of variable `prev_item_type`.
*/
last_item_type = pattern->type;
if (last_item_type == RTE_FLOW_ITEM_TYPE_VLAN) {
if (vlan_count >= 2)
goto not_sup;
vlan_count++;
continue;
}
prev_item_type = last_item_type;
assert(last_item_type < (enum rte_flow_item_type)
RTE_DIM(pattern_item_header));
item_hdr = pattern_item_header[last_item_type];
assert(item_hdr);
if (inner_flag) {
item_hdr <<= I40E_HASH_HDR_INNER_SHIFT;
/* Inner layer should not have GTPU item */
if (last_item_type == RTE_FLOW_ITEM_TYPE_GTPU)
goto not_sup;
} else {
if (last_item_type == RTE_FLOW_ITEM_TYPE_GTPU) {
inner_flag = true;
vlan_count = 0;
}
}
if (item_hdr & pattern_hdrs)
goto not_sup;
pattern_hdrs |= item_hdr;
}
if (pattern_hdrs && last_item_type != RTE_FLOW_ITEM_TYPE_VLAN) {
*pattern_types = pattern_hdrs;
return 0;
}
not_sup:
return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
pattern, message);
}
static uint64_t
i40e_hash_get_x722_ext_pctypes(uint8_t match_pctype)
{
uint64_t pctypes = 0;
switch (match_pctype) {
case I40E_FILTER_PCTYPE_NONF_IPV4_TCP:
pctypes = BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
break;
case I40E_FILTER_PCTYPE_NONF_IPV4_UDP:
pctypes = BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
break;
case I40E_FILTER_PCTYPE_NONF_IPV6_TCP:
pctypes = BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
break;
case I40E_FILTER_PCTYPE_NONF_IPV6_UDP:
pctypes = BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
break;
}
return pctypes;
}
static int
i40e_hash_translate_gtp_inset(struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
if (rss_conf->inset &
(I40E_INSET_IPV4_SRC | I40E_INSET_IPV6_SRC |
I40E_INSET_DST_PORT | I40E_INSET_SRC_PORT))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL,
"Only support external destination IP");
if (rss_conf->inset & I40E_INSET_IPV4_DST)
rss_conf->inset = (rss_conf->inset & ~I40E_INSET_IPV4_DST) |
I40E_INSET_TUNNEL_IPV4_DST;
if (rss_conf->inset & I40E_INSET_IPV6_DST)
rss_conf->inset = (rss_conf->inset & ~I40E_INSET_IPV6_DST) |
I40E_INSET_TUNNEL_IPV6_DST;
return 0;
}
static int
i40e_hash_get_pctypes(const struct rte_eth_dev *dev,
const struct i40e_hash_match_pattern *match,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
if (match->custom_pctype_flag) {
struct i40e_pf *pf;
struct i40e_customized_pctype *custom_type;
pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
custom_type = i40e_find_customized_pctype(pf, match->pctype);
if (!custom_type || !custom_type->valid)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "PCTYPE not supported");
rss_conf->config_pctypes |= BIT_ULL(custom_type->pctype);
if (match->pctype == I40E_CUSTOMIZED_GTPU ||
match->pctype == I40E_CUSTOMIZED_GTPC)
return i40e_hash_translate_gtp_inset(rss_conf, error);
} else {
struct i40e_hw *hw =
I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint64_t types;
rss_conf->config_pctypes |= BIT_ULL(match->pctype);
if (hw->mac.type == I40E_MAC_X722) {
types = i40e_hash_get_x722_ext_pctypes(match->pctype);
rss_conf->config_pctypes |= types;
}
}
return 0;
}
static int
i40e_hash_get_pattern_pctypes(const struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
uint64_t pattern_types = 0;
bool match_flag = false;
int i, ret;
ret = i40e_hash_get_pattern_type(pattern, &pattern_types, error);
if (ret)
return ret;
for (i = 0; i < (int)RTE_DIM(match_patterns); i++) {
const struct i40e_hash_match_pattern *match =
&match_patterns[i];
/* Check pattern types match. All items that have the same
* pattern types are together, so if the pattern types match
* previous item but they doesn't match current item, it means
* the pattern types do not match all remain items.
*/
if (pattern_types != match->pattern_type) {
if (match_flag)
break;
continue;
}
match_flag = true;
/* Check RSS types match */
if (!(rss_act->types & ~match->rss_mask)) {
ret = i40e_hash_get_pctypes(dev, match,
rss_conf, error);
if (ret)
return ret;
}
}
if (rss_conf->config_pctypes)
return 0;
if (match_flag)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "RSS types not supported");
return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "Pattern not supported");
}
static uint64_t
i40e_hash_get_inset(uint64_t rss_types)
{
uint64_t mask, inset = 0;
int i;
for (i = 0; i < (int)RTE_DIM(i40e_hash_rss_inset); i++) {
if (rss_types & i40e_hash_rss_inset[i].rss_type)
inset |= i40e_hash_rss_inset[i].inset;
}
if (!inset)
return 0;
/* If SRC_ONLY and DST_ONLY of the same level are used simultaneously,
* it is the same case as none of them are added.
*/
mask = rss_types & (ETH_RSS_L2_SRC_ONLY | ETH_RSS_L2_DST_ONLY);
if (mask == ETH_RSS_L2_SRC_ONLY)
inset &= ~I40E_INSET_DMAC;
else if (mask == ETH_RSS_L2_DST_ONLY)
inset &= ~I40E_INSET_SMAC;
mask = rss_types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY);
if (mask == ETH_RSS_L3_SRC_ONLY)
inset &= ~(I40E_INSET_IPV4_DST | I40E_INSET_IPV6_DST);
else if (mask == ETH_RSS_L3_DST_ONLY)
inset &= ~(I40E_INSET_IPV4_SRC | I40E_INSET_IPV6_SRC);
mask = rss_types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY);
if (mask == ETH_RSS_L4_SRC_ONLY)
inset &= ~I40E_INSET_DST_PORT;
else if (mask == ETH_RSS_L4_DST_ONLY)
inset &= ~I40E_INSET_SRC_PORT;
if (rss_types & I40E_HASH_L4_TYPES) {
uint64_t l3_mask = rss_types &
(ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY);
uint64_t l4_mask = rss_types &
(ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY);
if (l3_mask && !l4_mask)
inset &= ~(I40E_INSET_SRC_PORT | I40E_INSET_DST_PORT);
else if (!l3_mask && l4_mask)
inset &= ~(I40E_INSET_IPV4_DST | I40E_INSET_IPV6_DST |
I40E_INSET_IPV4_SRC | I40E_INSET_IPV6_SRC);
}
return inset;
}
static int
i40e_hash_config_func(struct i40e_hw *hw, enum rte_eth_hash_function func)
{
struct i40e_pf *pf;
uint32_t reg;
uint8_t symmetric = 0;
reg = i40e_read_rx_ctl(hw, I40E_GLQF_CTL);
if (func == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
if (!(reg & I40E_GLQF_CTL_HTOEP_MASK))
goto set_symmetric;
reg &= ~I40E_GLQF_CTL_HTOEP_MASK;
} else {
if (func == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
symmetric = 1;
if (reg & I40E_GLQF_CTL_HTOEP_MASK)
goto set_symmetric;
reg |= I40E_GLQF_CTL_HTOEP_MASK;
}
pf = &((struct i40e_adapter *)hw->back)->pf;
if (pf->support_multi_driver) {
PMD_DRV_LOG(ERR,
"Modify hash function is not permitted when multi-driver enabled");
return -EPERM;
}
PMD_DRV_LOG(INFO, "NIC hash function is setting to %d", func);
i40e_write_rx_ctl(hw, I40E_GLQF_CTL, reg);
I40E_WRITE_FLUSH(hw);
set_symmetric:
i40e_set_symmetric_hash_enable_per_port(hw, symmetric);
return 0;
}
static int
i40e_hash_config_pctype_symmetric(struct i40e_hw *hw,
uint32_t pctype,
bool symmetric)
{
struct i40e_pf *pf = &((struct i40e_adapter *)hw->back)->pf;
uint32_t reg;
/* For X722, get translated pctype in fd pctype register */
if (hw->mac.type == I40E_MAC_X722)
pctype = i40e_read_rx_ctl(hw, I40E_GLQF_FD_PCTYPES(pctype));
reg = i40e_read_rx_ctl(hw, I40E_GLQF_HSYM(pctype));
if (symmetric) {
if (reg & I40E_GLQF_HSYM_SYMH_ENA_MASK)
return 0;
reg |= I40E_GLQF_HSYM_SYMH_ENA_MASK;
} else {
if (!(reg & I40E_GLQF_HSYM_SYMH_ENA_MASK))
return 0;
reg &= ~I40E_GLQF_HSYM_SYMH_ENA_MASK;
}
if (pf->support_multi_driver) {
PMD_DRV_LOG(ERR,
"Enable/Disable symmetric hash is not permitted when multi-driver enabled");
return -EPERM;
}
i40e_write_rx_ctl(hw, I40E_GLQF_HSYM(pctype), reg);
I40E_WRITE_FLUSH(hw);
return 0;
}
static void
i40e_hash_enable_pctype(struct i40e_hw *hw,
uint32_t pctype, bool enable)
{
uint32_t reg, reg_val, mask;
/* For X722, get translated pctype in fd pctype register */
if (hw->mac.type == I40E_MAC_X722)
pctype = i40e_read_rx_ctl(hw, I40E_GLQF_FD_PCTYPES(pctype));
if (pctype < 32) {
mask = BIT(pctype);
reg = I40E_PFQF_HENA(0);
} else {
mask = BIT(pctype - 32);
reg = I40E_PFQF_HENA(1);
}
reg_val = i40e_read_rx_ctl(hw, reg);
if (enable) {
if (reg_val & mask)
return;
reg_val |= mask;
} else {
if (!(reg_val & mask))
return;
reg_val &= ~mask;
}
i40e_write_rx_ctl(hw, reg, reg_val);
I40E_WRITE_FLUSH(hw);
}
static int
i40e_hash_config_pctype(struct i40e_hw *hw,
struct i40e_rte_flow_rss_conf *rss_conf,
uint32_t pctype)
{
uint64_t rss_types = rss_conf->conf.types;
int ret;
if (rss_types == 0) {
i40e_hash_enable_pctype(hw, pctype, false);
return 0;
}
if (rss_conf->inset) {
ret = i40e_set_hash_inset(hw, rss_conf->inset, pctype, false);
if (ret)
return ret;
}
i40e_hash_enable_pctype(hw, pctype, true);
return 0;
}
static int
i40e_hash_config_region(struct i40e_pf *pf,
const struct i40e_rte_flow_rss_conf *rss_conf)
{
struct i40e_hw *hw = &pf->adapter->hw;
struct rte_eth_dev *dev = pf->adapter->eth_dev;
struct i40e_queue_region_info *regions = pf->queue_region.region;
uint32_t num = pf->queue_region.queue_region_number;
uint32_t i, region_id_mask = 0;
/* Use a 32 bit variable to represent all regions */
RTE_BUILD_BUG_ON(I40E_REGION_MAX_INDEX > 31);
/* Re-configure the region if it existed */
for (i = 0; i < num; i++) {
if (rss_conf->region_queue_start ==
regions[i].queue_start_index &&
rss_conf->region_queue_num == regions[i].queue_num) {
uint32_t j;
for (j = 0; j < regions[i].user_priority_num; j++) {
if (regions[i].user_priority[j] ==
rss_conf->region_priority)
return 0;
}
if (j >= I40E_MAX_USER_PRIORITY) {
PMD_DRV_LOG(ERR,
"Priority number exceed the maximum %d",
I40E_MAX_USER_PRIORITY);
return -ENOSPC;
}
regions[i].user_priority[j] = rss_conf->region_priority;
regions[i].user_priority_num++;
return i40e_flush_queue_region_all_conf(dev, hw, pf, 1);
}
region_id_mask |= BIT(regions[i].region_id);
}
if (num > I40E_REGION_MAX_INDEX) {
PMD_DRV_LOG(ERR, "Queue region resource used up");
return -ENOSPC;
}
/* Add a new region */
pf->queue_region.queue_region_number++;
memset(&regions[num], 0, sizeof(regions[0]));
regions[num].region_id = rte_bsf32(~region_id_mask);
regions[num].queue_num = rss_conf->region_queue_num;
regions[num].queue_start_index = rss_conf->region_queue_start;
regions[num].user_priority[0] = rss_conf->region_priority;
regions[num].user_priority_num = 1;
return i40e_flush_queue_region_all_conf(dev, hw, pf, 1);
}
static int
i40e_hash_config(struct i40e_pf *pf,
struct i40e_rte_flow_rss_conf *rss_conf)
{
struct rte_flow_action_rss *rss_info = &rss_conf->conf;
struct i40e_hw *hw = &pf->adapter->hw;
uint64_t pctypes;
int ret;
if (rss_info->func != RTE_ETH_HASH_FUNCTION_DEFAULT) {
ret = i40e_hash_config_func(hw, rss_info->func);
if (ret)
return ret;
if (rss_info->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
rss_conf->misc_reset_flags |=
I40E_HASH_FLOW_RESET_FLAG_FUNC;
}
if (rss_conf->region_queue_num > 0) {
ret = i40e_hash_config_region(pf, rss_conf);
if (ret)
return ret;
rss_conf->misc_reset_flags |= I40E_HASH_FLOW_RESET_FLAG_REGION;
}
if (rss_info->key_len > 0) {
ret = i40e_set_rss_key(pf->main_vsi, rss_conf->key,
rss_info->key_len);
if (ret)
return ret;
rss_conf->misc_reset_flags |= I40E_HASH_FLOW_RESET_FLAG_KEY;
}
/* Update lookup table */
if (rss_info->queue_num > 0) {
uint8_t lut[ETH_RSS_RETA_SIZE_512];
uint32_t i, j = 0;
for (i = 0; i < hw->func_caps.rss_table_size; i++) {
lut[i] = (uint8_t)rss_info->queue[j];
j = (j == rss_info->queue_num - 1) ? 0 : (j + 1);
}
ret = i40e_set_rss_lut(pf->main_vsi, lut, (uint16_t)i);
if (ret)
return ret;
pf->hash_enabled_queues = 0;
for (i = 0; i < rss_info->queue_num; i++)
pf->hash_enabled_queues |= BIT_ULL(lut[i]);
pf->adapter->rss_reta_updated = 0;
rss_conf->misc_reset_flags |= I40E_HASH_FLOW_RESET_FLAG_QUEUE;
}
/* The codes behind configure the input sets and symmetric hash
* function of the packet types and enable hash on them.
*/
pctypes = rss_conf->config_pctypes;
if (!pctypes)
return 0;
/* For first flow that will enable hash on any packet type, we clean
* the RSS sets that by legacy configuration commands and parameters.
*/
if (!pf->hash_filter_enabled) {
i40e_pf_disable_rss(pf);
pf->hash_filter_enabled = true;
}
do {
uint32_t idx = rte_bsf64(pctypes);
uint64_t bit = BIT_ULL(idx);
if (rss_conf->symmetric_enable) {
ret = i40e_hash_config_pctype_symmetric(hw, idx, true);
if (ret)
return ret;
rss_conf->reset_symmetric_pctypes |= bit;
}
ret = i40e_hash_config_pctype(hw, rss_conf, idx);
if (ret)
return ret;
rss_conf->reset_config_pctypes |= bit;
pctypes &= ~bit;
} while (pctypes);
return 0;
}
static void
i40e_hash_parse_key(const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf)
{
const uint8_t *key = rss_act->key;
if (!key || rss_act->key_len != sizeof(rss_conf->key)) {
const uint32_t rss_key_default[] = {0x6b793944,
0x23504cb5, 0x5bea75b6, 0x309f4f12, 0x3dc0a2b8,
0x024ddcdf, 0x339b8ca0, 0x4c4af64a, 0x34fac605,
0x55d85839, 0x3a58997d, 0x2ec938e1, 0x66031581};
if (rss_act->key_len != sizeof(rss_conf->key))
PMD_DRV_LOG(WARNING,
"RSS key length invalid, must be %u bytes, now set key to default",
(uint32_t)sizeof(rss_conf->key));
memcpy(rss_conf->key, rss_key_default, sizeof(rss_conf->key));
} else {
memcpy(rss_conf->key, key, sizeof(rss_conf->key));
}
rss_conf->conf.key = rss_conf->key;
rss_conf->conf.key_len = sizeof(rss_conf->key);
}
static int
i40e_hash_parse_queues(const struct rte_eth_dev *dev,
const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
struct i40e_pf *pf;
struct i40e_hw *hw;
uint16_t i;
int max_queue;
hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
if (!rss_act->queue_num ||
rss_act->queue_num > hw->func_caps.rss_table_size)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "Invalid RSS queue number");
if (rss_act->key_len)
PMD_DRV_LOG(WARNING,
"RSS key is ignored when queues specified");
pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
if (pf->dev_data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_VMDQ_FLAG)
max_queue = i40e_pf_calc_configured_queues_num(pf);
else
max_queue = pf->dev_data->nb_rx_queues;
max_queue = RTE_MIN(max_queue, I40E_MAX_Q_PER_TC);
for (i = 0; i < rss_act->queue_num; i++) {
if ((int)rss_act->queue[i] >= max_queue)
break;
}
if (i < rss_act->queue_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "Invalid RSS queues");
memcpy(rss_conf->queue, rss_act->queue,
rss_act->queue_num * sizeof(rss_conf->queue[0]));
rss_conf->conf.queue = rss_conf->queue;
rss_conf->conf.queue_num = rss_act->queue_num;
return 0;
}
static int
i40e_hash_parse_queue_region(const struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
struct i40e_pf *pf;
const struct rte_flow_item_vlan *vlan_spec, *vlan_mask;
uint64_t hash_queues;
uint32_t i;
if (pattern[1].type != RTE_FLOW_ITEM_TYPE_END)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM_NUM,
&pattern[1],
"Pattern not supported.");
vlan_spec = pattern->spec;
vlan_mask = pattern->mask;
if (!vlan_spec || !vlan_mask ||
(rte_be_to_cpu_16(vlan_mask->tci) >> 13) != 7)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, pattern,
"Pattern error.");
if (!rss_act->queue)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "Queues not specified");
if (rss_act->key_len)
PMD_DRV_LOG(WARNING,
"RSS key is ignored when configure queue region");
/* Use a 64 bit variable to represent all queues in a region. */
RTE_BUILD_BUG_ON(I40E_MAX_Q_PER_TC > 64);
if (!rss_act->queue_num ||
!rte_is_power_of_2(rss_act->queue_num) ||
rss_act->queue_num + rss_act->queue[0] > I40E_MAX_Q_PER_TC)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "Queue number error");
for (i = 1; i < rss_act->queue_num; i++) {
if (rss_act->queue[i - 1] + 1 != rss_act->queue[i])
break;
}
if (i < rss_act->queue_num)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL,
"Queues must be incremented continuously");
/* Map all queues to bits of uint64_t */
hash_queues = (BIT_ULL(rss_act->queue[0] + rss_act->queue_num) - 1) &
~(BIT_ULL(rss_act->queue[0]) - 1);
pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
if (hash_queues & ~pf->hash_enabled_queues)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "Some queues are not in LUT");
rss_conf->region_queue_num = (uint8_t)rss_act->queue_num;
rss_conf->region_queue_start = rss_act->queue[0];
rss_conf->region_priority = rte_be_to_cpu_16(vlan_spec->tci) >> 13;
return 0;
}
static int
i40e_hash_parse_global_conf(const struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
if (rss_act->func == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL,
"Symmetric function should be set with pattern types");
rss_conf->conf.func = rss_act->func;
if (rss_act->types)
PMD_DRV_LOG(WARNING,
"RSS types are ignored when no pattern specified");
if (pattern[0].type == RTE_FLOW_ITEM_TYPE_VLAN)
return i40e_hash_parse_queue_region(dev, pattern, rss_act,
rss_conf, error);
if (rss_act->queue)
return i40e_hash_parse_queues(dev, rss_act, rss_conf, error);
if (rss_act->key_len) {
i40e_hash_parse_key(rss_act, rss_conf);
return 0;
}
if (rss_act->func == RTE_ETH_HASH_FUNCTION_DEFAULT)
PMD_DRV_LOG(WARNING, "Nothing change");
return 0;
}
static bool
i40e_hash_validate_rss_types(uint64_t rss_types)
{
uint64_t type, mask;
/* Validate L2 */
type = ETH_RSS_ETH & rss_types;
mask = (ETH_RSS_L2_SRC_ONLY | ETH_RSS_L2_DST_ONLY) & rss_types;
if (!type && mask)
return false;
/* Validate L3 */
type = (I40E_HASH_L4_TYPES | ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
ETH_RSS_NONFRAG_IPV4_OTHER | ETH_RSS_IPV6 |
ETH_RSS_FRAG_IPV6 | ETH_RSS_NONFRAG_IPV6_OTHER) & rss_types;
mask = (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY) & rss_types;
if (!type && mask)
return false;
/* Validate L4 */
type = (I40E_HASH_L4_TYPES | ETH_RSS_PORT) & rss_types;
mask = (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY) & rss_types;
if (!type && mask)
return false;
return true;
}
static int
i40e_hash_parse_pattern_act(const struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action_rss *rss_act,
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
if (rss_act->queue)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL,
"RSS Queues not supported when pattern specified");
if (rss_act->func == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
rss_conf->symmetric_enable = true;
else if (rss_act->func != RTE_ETH_HASH_FUNCTION_DEFAULT)
return rte_flow_error_set(error, -EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL,
"Only symmetric TOEPLITZ supported when pattern specified");
if (!i40e_hash_validate_rss_types(rss_act->types))
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
NULL, "RSS types are invalid");
if (rss_act->key_len)
i40e_hash_parse_key(rss_act, rss_conf);
rss_conf->conf.func = rss_act->func;
rss_conf->conf.types = rss_act->types;
rss_conf->inset = i40e_hash_get_inset(rss_act->types);
return i40e_hash_get_pattern_pctypes(dev, pattern, rss_act,
rss_conf, error);
}
int
i40e_hash_parse(const struct rte_eth_dev *dev,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct i40e_rte_flow_rss_conf *rss_conf,
struct rte_flow_error *error)
{
const struct rte_flow_action_rss *rss_act;
if (actions[1].type != RTE_FLOW_ACTION_TYPE_END)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
&actions[1],
"Only support one action for RSS.");
rss_act = (const struct rte_flow_action_rss *)actions[0].conf;
if (rss_act->level)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION_CONF,
actions,
"RSS level is not supported");
while (pattern->type == RTE_FLOW_ITEM_TYPE_VOID)
pattern++;
if (pattern[0].type == RTE_FLOW_ITEM_TYPE_END ||
pattern[0].type == RTE_FLOW_ITEM_TYPE_VLAN)
return i40e_hash_parse_global_conf(dev, pattern, rss_act,
rss_conf, error);
return i40e_hash_parse_pattern_act(dev, pattern, rss_act,
rss_conf, error);
}
static void
i40e_invalid_rss_filter(const struct i40e_rte_flow_rss_conf *ref_conf,
struct i40e_rte_flow_rss_conf *conf)
{
uint32_t reset_flags = conf->misc_reset_flags;
conf->misc_reset_flags &= ~ref_conf->misc_reset_flags;
if ((reset_flags & I40E_HASH_FLOW_RESET_FLAG_REGION) &&
(ref_conf->misc_reset_flags & I40E_HASH_FLOW_RESET_FLAG_REGION) &&
(conf->region_queue_start != ref_conf->region_queue_start ||
conf->region_queue_num != ref_conf->region_queue_num))
conf->misc_reset_flags |= I40E_HASH_FLOW_RESET_FLAG_REGION;
conf->reset_config_pctypes &= ~ref_conf->reset_config_pctypes;
conf->reset_symmetric_pctypes &= ~ref_conf->reset_symmetric_pctypes;
}
int
i40e_hash_filter_restore(struct i40e_pf *pf)
{
struct i40e_rss_filter *filter;
int ret;
TAILQ_FOREACH(filter, &pf->rss_config_list, next) {
struct i40e_rte_flow_rss_conf *rss_conf =
&filter->rss_filter_info;
struct i40e_rss_filter *prev;
rss_conf->misc_reset_flags = 0;
rss_conf->reset_config_pctypes = 0;
rss_conf->reset_symmetric_pctypes = 0;
ret = i40e_hash_config(pf, rss_conf);
if (ret) {
pf->hash_filter_enabled = 0;
i40e_pf_disable_rss(pf);
PMD_DRV_LOG(ERR,
"Re-configure RSS failed, RSS has been disabled");
return ret;
}
/* Invalid previous RSS filter */
TAILQ_FOREACH(prev, &pf->rss_config_list, next) {
if (prev == filter)
break;
i40e_invalid_rss_filter(rss_conf,
&prev->rss_filter_info);
}
}
return 0;
}
int
i40e_hash_filter_create(struct i40e_pf *pf,
struct i40e_rte_flow_rss_conf *rss_conf)
{
struct i40e_rss_filter *filter, *prev;
struct i40e_rte_flow_rss_conf *new_conf;
int ret;
filter = rte_zmalloc("i40e_rss_filter", sizeof(*filter), 0);
if (!filter) {
PMD_DRV_LOG(ERR, "Failed to allocate memory.");
return -ENOMEM;
}
new_conf = &filter->rss_filter_info;
memcpy(new_conf, rss_conf, sizeof(*new_conf));
if (new_conf->conf.queue_num)
new_conf->conf.queue = new_conf->queue;
if (new_conf->conf.key_len)
new_conf->conf.key = new_conf->key;
ret = i40e_hash_config(pf, new_conf);
if (ret) {
rte_free(filter);
if (i40e_pf_config_rss(pf))
return ret;
(void)i40e_hash_filter_restore(pf);
return ret;
}
/* Invalid previous RSS filter */
TAILQ_FOREACH(prev, &pf->rss_config_list, next)
i40e_invalid_rss_filter(new_conf, &prev->rss_filter_info);
TAILQ_INSERT_TAIL(&pf->rss_config_list, filter, next);
return 0;
}
static int
i40e_hash_reset_conf(struct i40e_pf *pf,
struct i40e_rte_flow_rss_conf *rss_conf)
{
struct i40e_hw *hw = &pf->adapter->hw;
uint64_t inset;
uint32_t idx;
int ret;
if (rss_conf->misc_reset_flags & I40E_HASH_FLOW_RESET_FLAG_FUNC) {
ret = i40e_hash_config_func(hw, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
if (ret)
return ret;
rss_conf->misc_reset_flags &= ~I40E_HASH_FLOW_RESET_FLAG_FUNC;
}
if (rss_conf->misc_reset_flags & I40E_HASH_FLOW_RESET_FLAG_REGION) {
ret = i40e_flush_queue_region_all_conf(pf->adapter->eth_dev,
hw, pf, 0);
if (ret)
return ret;
rss_conf->misc_reset_flags &= ~I40E_HASH_FLOW_RESET_FLAG_REGION;
}
if (rss_conf->misc_reset_flags & I40E_HASH_FLOW_RESET_FLAG_KEY) {
ret = i40e_pf_reset_rss_key(pf);
if (ret)
return ret;
rss_conf->misc_reset_flags &= ~I40E_HASH_FLOW_RESET_FLAG_KEY;
}
if (rss_conf->misc_reset_flags & I40E_HASH_FLOW_RESET_FLAG_QUEUE) {
if (!pf->adapter->rss_reta_updated) {
ret = i40e_pf_reset_rss_reta(pf);
if (ret)
return ret;
}
pf->hash_enabled_queues = 0;
rss_conf->misc_reset_flags &= ~I40E_HASH_FLOW_RESET_FLAG_QUEUE;
}
while (rss_conf->reset_config_pctypes) {
idx = rte_bsf64(rss_conf->reset_config_pctypes);
i40e_hash_enable_pctype(hw, idx, false);
inset = i40e_get_default_input_set(idx);
if (inset) {
ret = i40e_set_hash_inset(hw, inset, idx, false);
if (ret)
return ret;
}
rss_conf->reset_config_pctypes &= ~BIT_ULL(idx);
}
while (rss_conf->reset_symmetric_pctypes) {
idx = rte_bsf64(rss_conf->reset_symmetric_pctypes);
ret = i40e_hash_config_pctype_symmetric(hw, idx, false);
if (ret)
return ret;
rss_conf->reset_symmetric_pctypes &= ~BIT_ULL(idx);
}
return 0;
}
int
i40e_hash_filter_destroy(struct i40e_pf *pf,
const struct i40e_rss_filter *rss_filter)
{
struct i40e_rss_filter *filter;
int ret;
TAILQ_FOREACH(filter, &pf->rss_config_list, next) {
if (rss_filter == filter) {
ret = i40e_hash_reset_conf(pf,
&filter->rss_filter_info);
if (ret)
return ret;
TAILQ_REMOVE(&pf->rss_config_list, filter, next);
rte_free(filter);
return 0;
}
}
return -ENOENT;
}
int
i40e_hash_filter_flush(struct i40e_pf *pf)
{
struct rte_flow *flow, *next;
TAILQ_FOREACH_SAFE(flow, &pf->flow_list, node, next) {
if (flow->filter_type != RTE_ETH_FILTER_HASH)
continue;
if (flow->rule) {
struct i40e_rss_filter *filter = flow->rule;
int ret;
ret = i40e_hash_reset_conf(pf,
&filter->rss_filter_info);
if (ret)
return ret;
TAILQ_REMOVE(&pf->rss_config_list, filter, next);
rte_free(filter);
}
TAILQ_REMOVE(&pf->flow_list, flow, node);
rte_free(flow);
}
assert(!pf->rss_config_list.tqh_first);
return 0;
}
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