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334 lines
12 KiB
C
334 lines
12 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 I40E 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-i40e.h"
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#include "util-dpdk.h"
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#include "util-debug.h"
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#include "util-dpdk-bonding.h"
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#include "util-dpdk-rss.h"
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#ifdef HAVE_DPDK
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#if RTE_VERSION < RTE_VERSION_NUM(21, 0, 0, 0)
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#define I40E_RSS_HKEY_LEN 40
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#define I40E_RSS_HASH_FUNCTION RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ
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#else
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#define I40E_RSS_HKEY_LEN 52
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#define I40E_RSS_HASH_FUNCTION RTE_ETH_HASH_FUNCTION_TOEPLITZ
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#endif // RTE_VERSION < RTE_VERSION_NUM(21, 0, 0, 0)
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#if RTE_VERSION < RTE_VERSION_NUM(20, 0, 0, 0)
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static int i40eDeviceEnableSymHash(
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int port_id, const char *port_name, uint32_t ftype, enum rte_eth_hash_function function)
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{
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struct rte_eth_hash_filter_info info;
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int retval;
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uint32_t idx, offset;
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memset(&info, 0, sizeof(info));
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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retval = rte_eth_dev_filter_supported(port_id, RTE_ETH_FILTER_HASH);
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#pragma GCC diagnostic pop
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if (retval < 0) {
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SCLogError("%s: RTE_ETH_FILTER_HASH not supported", port_name);
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return retval;
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}
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info.info_type = RTE_ETH_HASH_FILTER_GLOBAL_CONFIG;
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info.info.global_conf.hash_func = function;
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idx = ftype / UINT64_BIT;
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offset = ftype % UINT64_BIT;
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info.info.global_conf.valid_bit_mask[idx] |= (1ULL << offset);
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info.info.global_conf.sym_hash_enable_mask[idx] |= (1ULL << offset);
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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retval = rte_eth_dev_filter_ctrl(port_id, RTE_ETH_FILTER_HASH, RTE_ETH_FILTER_SET, &info);
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#pragma GCC diagnostic pop
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if (retval < 0) {
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SCLogError("%s: cannot set global hash configurations", port_name);
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return retval;
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}
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return 0;
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}
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static int i40eDeviceSetSymHash(int port_id, const char *port_name, int enable)
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{
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int ret;
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struct rte_eth_hash_filter_info info;
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memset(&info, 0, sizeof(info));
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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ret = rte_eth_dev_filter_supported(port_id, RTE_ETH_FILTER_HASH);
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#pragma GCC diagnostic pop
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if (ret < 0) {
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SCLogError("%s: RTE_ETH_FILTER_HASH not supported", port_name);
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return ret;
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}
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info.info_type = RTE_ETH_HASH_FILTER_SYM_HASH_ENA_PER_PORT;
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info.info.enable = enable;
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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ret = rte_eth_dev_filter_ctrl(port_id, RTE_ETH_FILTER_HASH, RTE_ETH_FILTER_SET, &info);
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#pragma GCC diagnostic pop
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if (ret < 0) {
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SCLogError("%s: cannot set symmetric hash enable per port", port_name);
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return ret;
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}
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return 0;
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}
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static int i40eDeviceApplyRSSFilter(int port_id, const char *port_name)
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{
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int retval = 0;
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// Behavior of RTE_FLOW in DPDK version 19.xx and less is different than on versions
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// above. For that reason RSS on i40e driver is set differently.
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_FRAG_IPV4, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV4_TCP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV4_UDP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV4_SCTP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV4_OTHER, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_FRAG_IPV6, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV6_TCP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV6_UDP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV6_SCTP, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceEnableSymHash(
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port_id, port_name, RTE_ETH_FLOW_NONFRAG_IPV6_OTHER, RTE_ETH_HASH_FUNCTION_TOEPLITZ);
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retval |= i40eDeviceSetSymHash(port_id, port_name, 1);
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return retval;
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}
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static int32_t i40eDeviceSetRSSWithFilter(int port_id, const char *port_name)
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{
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int32_t ret = BondingIsBond(port_id);
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if (ret < 0)
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return -ret;
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if (ret == 1) { // regular device
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i40eDeviceApplyRSSFilter(port_id, port_name);
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} else if (ret == 0) { // the device is Bond PMD
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uint16_t bonded_devs[RTE_MAX_ETHPORTS];
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ret = BondingMemberDevicesGet(port_id, bonded_devs, RTE_MAX_ETHPORTS);
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for (int i = 0; i < ret; i++) {
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i40eDeviceApplyRSSFilter(bonded_devs[i], port_name);
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}
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} else {
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FatalError("Unknown return value from BondingIsBond()");
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}
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return 0;
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}
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#else
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static int i40eDeviceSetRSSFlowIPv4(
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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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int ret = 0;
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struct rte_flow_item pattern[] = { { 0 }, { 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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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV4_OTHER | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_UDP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV4_UDP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_TCP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_SCTP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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return ret;
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}
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static int i40eDeviceSetRSSFlowIPv6(
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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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int ret = 0;
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struct rte_flow_item pattern[] = { { 0 }, { 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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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV6_OTHER | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_UDP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV6_UDP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_TCP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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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_SCTP;
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pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
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ret |= DPDKCreateRSSFlow(port_id, port_name, rss_conf,
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RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY,
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pattern);
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memset(pattern, 0, sizeof(pattern));
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return ret;
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}
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static int i40eDeviceSetRSSWithFlows(int port_id, const char *port_name, int nb_rx_queues)
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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 = {
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.rss_key = RSS_HKEY,
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.rss_key_len = I40E_RSS_HKEY_LEN,
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};
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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, nb_rx_queues, queues, RTE_ETH_HASH_FUNCTION_DEFAULT, false);
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int retval = DPDKSetRSSFlowQueues(port_id, port_name, rss_action_conf);
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memset(&rss_action_conf, 0, sizeof(struct rte_flow_action_rss));
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rss_action_conf = DPDKInitRSSAction(rss_conf, 0, queues, I40E_RSS_HASH_FUNCTION, true);
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retval |= i40eDeviceSetRSSFlowIPv4(port_id, port_name, rss_action_conf);
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retval |= i40eDeviceSetRSSFlowIPv6(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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#endif /* RTE_VERSION < RTE_VERSION_NUM(20,0,0,0) */
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int i40eDeviceSetRSS(int port_id, uint16_t nb_rx_queues, char *port_name)
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{
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(void)nb_rx_queues; // avoid unused variable warnings
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#if RTE_VERSION >= RTE_VERSION_NUM(20, 0, 0, 0)
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i40eDeviceSetRSSWithFlows(port_id, port_name, nb_rx_queues);
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#else
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i40eDeviceSetRSSWithFilter(port_id, port_name);
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#endif
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return 0;
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}
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void i40eDeviceSetRSSConf(struct rte_eth_rss_conf *rss_conf)
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{
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#if RTE_VERSION >= RTE_VERSION_NUM(20, 0, 0, 0)
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rss_conf->rss_hf = RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_NONFRAG_IPV4_OTHER |
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RTE_ETH_RSS_FRAG_IPV6 | RTE_ETH_RSS_NONFRAG_IPV6_OTHER;
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rss_conf->rss_key = NULL;
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rss_conf->rss_key_len = 0;
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#else
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rss_conf->rss_hf =
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RTE_ETH_RSS_FRAG_IPV4 | RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_NONFRAG_IPV4_UDP |
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RTE_ETH_RSS_NONFRAG_IPV4_SCTP | RTE_ETH_RSS_NONFRAG_IPV4_OTHER | RTE_ETH_RSS_FRAG_IPV6 |
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RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_NONFRAG_IPV6_UDP |
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RTE_ETH_RSS_NONFRAG_IPV6_SCTP | RTE_ETH_RSS_NONFRAG_IPV6_OTHER | RTE_ETH_RSS_SCTP;
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#endif
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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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