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suricata/src/util-dpdk.c

86 lines
2.3 KiB
C

/* Copyright (C) 2021 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Lukas Sismis <lukas.sismis@gmail.com>
*/
#include "suricata.h"
#include "util-dpdk.h"
#include "util-debug.h"
void DPDKCleanupEAL(void)
{
#ifdef HAVE_DPDK
if (SCRunmodeGet() == RUNMODE_DPDK) {
int retval = rte_eal_cleanup();
if (retval != 0)
SCLogError("EAL cleanup failed: %s", strerror(-retval));
}
#endif
}
void DPDKCloseDevice(LiveDevice *ldev)
{
(void)ldev; // avoid warnings of unused variable
#ifdef HAVE_DPDK
if (SCRunmodeGet() == RUNMODE_DPDK) {
uint16_t port_id;
int retval = rte_eth_dev_get_port_by_name(ldev->dev, &port_id);
if (retval < 0) {
SCLogError("%s: failed get port id, error: %s", ldev->dev, rte_strerror(-retval));
return;
}
SCLogPerf("%s: closing device", ldev->dev);
rte_eth_dev_close(port_id);
}
#endif
}
void DPDKFreeDevice(LiveDevice *ldev)
{
(void)ldev; // avoid warnings of unused variable
#ifdef HAVE_DPDK
if (SCRunmodeGet() == RUNMODE_DPDK) {
SCLogDebug("%s: releasing packet mempool", ldev->dev);
rte_mempool_free(ldev->dpdk_vars.pkt_mp);
}
#endif
}
#ifdef HAVE_DPDK
/**
* Retrieves name of the port from port id
* Not thread-safe
* @param pid
* @return static dev_name on success
*/
const char *DPDKGetPortNameByPortID(uint16_t pid)
{
static char dev_name[RTE_ETH_NAME_MAX_LEN];
int32_t ret = rte_eth_dev_get_name_by_port(pid, dev_name);
if (ret < 0) {
FatalError("Port %d: Failed to obtain port name (err: %s)", pid, rte_strerror(-ret));
}
return dev_name;
}
#endif /* HAVE_DPDK */