suricata
util-dpdk-mlx5.c
Go to the documentation of this file.
1/* Copyright (C) 2025 Open Information Security Foundation
2 *
3 * You can copy, redistribute or modify this Program under the terms of
4 * the GNU General Public License version 2 as published by the Free
5 * Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * version 2 along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15 * 02110-1301, USA.
16 */
17
18/**
19 * \defgroup dpdk DPDK NVIDIA mlx5 driver helpers functions
20 *
21 * @{
22 */
23
24/**
25 * \file
26 *
27 * \author Adam Kiripolsky <adam.kiripolsky@cesnet.cz>
28 *
29 * DPDK driver's helper functions
30 *
31 */
32
33#include "util-debug.h"
34#include "util-dpdk.h"
35#include "util-dpdk-bonding.h"
36#include "util-dpdk-mlx5.h"
37#include "util-dpdk-rss.h"
38
39#ifdef HAVE_DPDK
40
41#define MLX5_RSS_HKEY_LEN 40
42
43int mlx5DeviceSetRSS(int port_id, uint16_t nb_rx_queues, char *port_name)
44{
45 uint16_t queues[RTE_MAX_QUEUES_PER_PORT];
46 struct rte_flow_error flush_error = { 0 };
47 struct rte_eth_rss_conf rss_conf = {
48 .rss_key = RSS_HKEY,
49 .rss_key_len = MLX5_RSS_HKEY_LEN,
50 };
51
52 if (nb_rx_queues < 1) {
53 FatalError("The number of queues for RSS configuration must be "
54 "configured with a positive number");
55 }
56
57 struct rte_flow_action_rss rss_action_conf =
58 DPDKInitRSSAction(rss_conf, nb_rx_queues, queues, RTE_ETH_HASH_FUNCTION_TOEPLITZ, true);
59
60 int retval = DPDKCreateRSSFlowGeneric(port_id, port_name, rss_action_conf);
61 if (retval != 0) {
62 retval = rte_flow_flush(port_id, &flush_error);
63 if (retval != 0) {
64 SCLogError("%s: unable to flush rte_flow rules: %s Flush error msg: %s", port_name,
65 rte_strerror(-retval), flush_error.message);
66 }
67 return retval;
68 }
69
70 return 0;
71}
72
73#endif /* HAVE_DPDK */
74/**
75 * @}
76 */
#define FatalError(...)
Definition util-debug.h:510
#define SCLogError(...)
Macro used to log ERROR messages.
Definition util-debug.h:267