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https://github.com/OISF/suricata.git
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Adam Kiripolsky
2296b3ba76
ixgbe driver requires different configuration of RSS rte_flow rule than i40e, with just one generic rule matching all traffic. The generic rule configured by DeviceCreateRSSFlowGeneric() has pattern equivalent to "pattern eth / end" in dpdk-testpmd syntax. The rule must have rx queues configured. The rule hashes traffic to different queues based on ipv4 and ipv6 hash types (ipv4 src dst / ipv6 src dst). The hash key is 40 bytes long symmetric hash key. ixgbe does not support any other hash function than RTE_ETH_HASH_FUNCTION_DEFAULT. The syntax in dpdk-testpmd for this rule with attributes: port index == 0 used rx queue indices == 0 1 2 3 <hash_key> == 6d5a symmetric hash key is as follows: "flow create 0 ingress pattern eth / end actions rss types ipv4 ipv6 end queues 0 1 2 3 end key <hash_key> key_len 40 func default / end" Ticket: 7337
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Copyright (C) 2025 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Adam Kiripolsky <[email protected]>
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*/
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#ifndef UTIL_DPDK_RSS
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#define UTIL_DPDK_RSS
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#include "suricata-common.h"
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#ifdef HAVE_DPDK
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#include "util-dpdk.h"
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#define RSS_HKEY_LEN 40
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extern uint8_t RSS_HKEY[];
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struct rte_flow_action_rss DPDKInitRSSAction(struct rte_eth_rss_conf rss_conf, int nb_rx_queues,
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uint16_t *queues, enum rte_eth_hash_function func, bool set_key);
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int DPDKCreateRSSFlowGeneric(
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int port_id, const char *port_name, struct rte_flow_action_rss rss_conf);
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int DPDKSetRSSFlowQueues(int port_id, const char *port_name, struct rte_flow_action_rss rss_conf);
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int DPDKCreateRSSFlow(int port_id, const char *port_name, struct rte_flow_action_rss rss_conf,
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uint64_t rss_type, struct rte_flow_item *pattern);
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#endif /* HAVE_DPDK */
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#endif /* UTIL_DPDK_RSS */
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