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131 lines
4.0 KiB
C
131 lines
4.0 KiB
C
/* Copyright (C) 2021-2025 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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* \defgroup dpdk DPDK Intel ICE driver helpers functions
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*
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* @{
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*/
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/**
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* \file
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*
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* \author Lukas Sismis <lukas.sismis@gmail.com>
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*
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* DPDK driver's helper functions
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*
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*/
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#include "util-dpdk-ice.h"
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#include "util-dpdk.h"
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#include "util-dpdk-rss.h"
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#include "util-debug.h"
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#include "util-dpdk-bonding.h"
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#ifdef HAVE_DPDK
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static void iceDeviceSetRSSHashFunction(uint64_t *rss_hf)
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{
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#if RTE_VERSION < RTE_VERSION_NUM(20, 0, 0, 0)
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*rss_hf = RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_NONFRAG_IPV4_OTHER | RTE_ETH_RSS_FRAG_IPV6 |
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RTE_ETH_RSS_NONFRAG_IPV6_OTHER;
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#else
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*rss_hf = RTE_ETH_RSS_IPV4 | RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_NONFRAG_IPV4_OTHER |
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RTE_ETH_RSS_IPV6 | RTE_ETH_RSS_FRAG_IPV6 | RTE_ETH_RSS_NONFRAG_IPV6_OTHER;
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#endif
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}
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/**
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* \brief Creates RTE_FLOW pattern to match ipv4 traffic
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*
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* \param port_id The port identifier of the Ethernet device
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* \param port_name The port name of the Ethernet device
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* \param rss_conf RSS configuration
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* \return int 0 on success, a negative errno value otherwise
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*/
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static int iceDeviceSetRSSFlowIPv4(
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int port_id, const char *port_name, struct rte_flow_action_rss rss_conf)
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{
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struct rte_flow_item pattern[] = { { 0 }, { 0 }, { 0 } };
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pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
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pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
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pattern[2].type = RTE_FLOW_ITEM_TYPE_END;
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return DPDKCreateRSSFlow(port_id, port_name, rss_conf, RTE_ETH_RSS_IPV4, pattern);
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}
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/**
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* \brief Creates RTE_FLOW pattern to match ipv6 traffic
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*
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* \param port_id The port identifier of the Ethernet device
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* \param port_name The port name of the Ethernet device
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* \param rss_conf RSS configuration
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* \return int 0 on success, a negative errno value otherwise
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*/
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static int iceDeviceSetRSSFlowIPv6(
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int port_id, const char *port_name, struct rte_flow_action_rss rss_conf)
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{
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struct rte_flow_item pattern[] = { { 0 }, { 0 }, { 0 } };
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pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
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pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
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pattern[2].type = RTE_FLOW_ITEM_TYPE_END;
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return DPDKCreateRSSFlow(port_id, port_name, rss_conf, RTE_ETH_RSS_IPV6, pattern);
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}
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int iceDeviceSetRSS(int port_id, uint16_t nb_rx_queues, char *port_name)
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{
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uint16_t queues[RTE_MAX_QUEUES_PER_PORT];
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struct rte_flow_error flush_error = { 0 };
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struct rte_eth_rss_conf rss_conf = { 0 };
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if (nb_rx_queues < 1) {
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FatalError("The number of queues for RSS configuration must be "
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"configured with a positive number");
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}
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struct rte_flow_action_rss rss_action_conf =
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DPDKInitRSSAction(rss_conf, 0, queues, RTE_ETH_HASH_FUNCTION_TOEPLITZ, false);
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int retval = iceDeviceSetRSSFlowIPv4(port_id, port_name, rss_action_conf);
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retval |= iceDeviceSetRSSFlowIPv6(port_id, port_name, rss_action_conf);
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if (retval != 0) {
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retval = rte_flow_flush(port_id, &flush_error);
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if (retval != 0) {
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SCLogError("%s: unable to flush rte_flow rules: %s Flush error msg: %s", port_name,
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rte_strerror(-retval), flush_error.message);
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}
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return retval;
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}
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return 0;
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}
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void iceDeviceSetRSSConf(struct rte_eth_rss_conf *rss_conf)
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{
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iceDeviceSetRSSHashFunction(&rss_conf->rss_hf);
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rss_conf->rss_key_len = 52;
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}
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#endif /* HAVE_DPDK */
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/**
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* @}
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*/
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