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131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/* Copyright (C) 2021 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 Lukas Sismis <lukas.sismis@gmail.com>
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*/
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#include "suricata-common.h"
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#include "suricata.h"
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#include "util-dpdk.h"
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#include "util-debug.h"
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#include "util-device-private.h"
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void DPDKCleanupEAL(void)
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{
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#ifdef HAVE_DPDK
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if (SCRunmodeGet() == RUNMODE_DPDK) {
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int retval = rte_eal_cleanup();
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if (retval != 0)
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SCLogError("EAL cleanup failed: %s", strerror(-retval));
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}
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#endif
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}
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void DPDKCloseDevice(LiveDevice *ldev)
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{
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(void)ldev; // avoid warnings of unused variable
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#ifdef HAVE_DPDK
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if (SCRunmodeGet() == RUNMODE_DPDK) {
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uint16_t port_id;
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int retval = rte_eth_dev_get_port_by_name(ldev->dev, &port_id);
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if (retval < 0) {
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SCLogError("%s: failed get port id, error: %s", ldev->dev, rte_strerror(-retval));
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return;
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}
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SCLogPerf("%s: closing device", ldev->dev);
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rte_eth_dev_close(port_id);
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}
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#endif
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}
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void DPDKFreeDevice(LiveDevice *ldev)
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{
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(void)ldev; // avoid warnings of unused variable
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#ifdef HAVE_DPDK
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if (SCRunmodeGet() == RUNMODE_DPDK) {
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SCLogDebug("%s: releasing packet mempools", ldev->dev);
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DPDKDeviceResourcesDeinit(&ldev->dpdk_vars);
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}
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#endif
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}
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/**
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* \param port_id - queried port
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* \param socket_id - socket ID of the queried port
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* \return non-negative number on success, negative on failure (errno)
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*/
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int32_t DPDKDeviceSetSocketID(uint16_t port_id, int32_t *socket_id)
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{
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#ifdef HAVE_DPDK
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rte_errno = 0;
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int retval = rte_eth_dev_socket_id(port_id);
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*socket_id = retval;
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#if RTE_VERSION >= RTE_VERSION_NUM(22, 11, 0, 0) // DPDK API changed since 22.11
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retval = -rte_errno;
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#else
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if (retval == SOCKET_ID_ANY)
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retval = 0; // DPDK couldn't determine socket ID of a port
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#endif
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return retval;
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#endif /* HAVE_DPDK */
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return -ENOTSUP;
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}
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/**
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* \param iface_name - name of the queried interface
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* \param socket_id - socket ID of the queried port
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* \return non-negative number on success, negative on failure (errno)
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*/
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int32_t DPDKDeviceNameSetSocketID(char *iface_name, int32_t *socket_id)
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{
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#ifdef HAVE_DPDK
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uint16_t port_id = 0;
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int r = rte_eth_dev_get_port_by_name(iface_name, &port_id);
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if (r < 0) {
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SCLogError("%s: interface not found: %s", iface_name, rte_strerror(-r));
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SCReturnInt(r);
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}
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return DPDKDeviceSetSocketID(port_id, socket_id);
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#endif /* HAVE_DPDK */
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return -ENOTSUP;
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}
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#ifdef HAVE_DPDK
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/**
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* Retrieves name of the port from port id
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* Not thread-safe
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* @param pid
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* @return static dev_name on success
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*/
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const char *DPDKGetPortNameByPortID(uint16_t pid)
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{
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static char dev_name[RTE_ETH_NAME_MAX_LEN];
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int32_t ret = rte_eth_dev_get_name_by_port(pid, dev_name);
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if (ret < 0) {
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FatalError("Port %d: Failed to obtain port name (err: %s)", pid, rte_strerror(-ret));
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}
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return dev_name;
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}
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#endif /* HAVE_DPDK */
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