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runmode-dpdk.c
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runmode-dpdk.c
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/* 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.
*/
/**
* \ingroup dpdk
*
* @{
*/
/**
* \file
*
* \author Lukas Sismis <lukas.sismis@gmail.com>
*
* DPDK runmode
*
*/
#include "suricata-common.h"
#include "runmodes.h"
#include "runmode-dpdk.h"
#include "decode.h"
#include "source-dpdk.h"
#include "util-runmodes.h"
#include "util-byte.h"
#include "util-cpu.h"
#include "util-debug.h"
#include "util-device.h"
#include "util-dpdk.h"
#include "util-dpdk-i40e.h"
#include "util-dpdk-ice.h"
#include "util-dpdk-ixgbe.h"
#include "util-dpdk-bonding.h"
#include "util-time.h"
#include "util-conf.h"
#include "suricata.h"
#include "util-affinity.h"
#ifdef HAVE_DPDK
#define RSS_HKEY_LEN 40
// General purpose RSS key for symmetric bidirectional flow distribution
uint8_t rss_hkey[] = { 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D,
0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D,
0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A };
// Calculates the closest multiple of y from x
#define ROUNDUP(x, y) ((((x) + ((y)-1)) / (y)) * (y))
/* Maximum DPDK EAL parameters count. */
#define EAL_ARGS 48
struct Arguments {
uint16_t capacity;
char **argv;
uint16_t argc;
};
static char *AllocArgument(size_t arg_len);
static char *AllocAndSetArgument(const char *arg);
static char *AllocAndSetOption(const char *arg);
static void ArgumentsInit(struct Arguments *args, unsigned capacity);
static void ArgumentsCleanup(struct Arguments *args);
static void ArgumentsAdd(struct Arguments *args, char *value);
static void ArgumentsAddOptionAndArgument(struct Arguments *args, const char *opt, const char *arg);
static void InitEal(void);
static void ConfigSetIface(DPDKIfaceConfig *iconf, const char *entry_str);
static int ConfigSetThreads(DPDKIfaceConfig *iconf, const char *entry_str);
static int ConfigSetRxQueues(DPDKIfaceConfig *iconf, uint16_t nb_queues);
static int ConfigSetTxQueues(DPDKIfaceConfig *iconf, uint16_t nb_queues);
static int ConfigSetMempoolSize(DPDKIfaceConfig *iconf, intmax_t entry_int);
static int ConfigSetMempoolCacheSize(DPDKIfaceConfig *iconf, const char *entry_str);
static int ConfigSetRxDescriptors(DPDKIfaceConfig *iconf, intmax_t entry_int);
static int ConfigSetTxDescriptors(DPDKIfaceConfig *iconf, intmax_t entry_int);
static int ConfigSetMtu(DPDKIfaceConfig *iconf, intmax_t entry_int);
static bool ConfigSetPromiscuousMode(DPDKIfaceConfig *iconf, int entry_bool);
static bool ConfigSetMulticast(DPDKIfaceConfig *iconf, int entry_bool);
static int ConfigSetChecksumChecks(DPDKIfaceConfig *iconf, int entry_bool);
static int ConfigSetChecksumOffload(DPDKIfaceConfig *iconf, int entry_bool);
static int ConfigSetCopyIface(DPDKIfaceConfig *iconf, const char *entry_str);
static int ConfigSetCopyMode(DPDKIfaceConfig *iconf, const char *entry_str);
static int ConfigSetCopyIfaceSettings(DPDKIfaceConfig *iconf, const char *iface, const char *mode);
static void ConfigInit(DPDKIfaceConfig **iconf);
static int ConfigLoad(DPDKIfaceConfig *iconf, const char *iface);
static DPDKIfaceConfig *ConfigParse(const char *iface);
static void DeviceInitPortConf(const DPDKIfaceConfig *iconf,
const struct rte_eth_dev_info *dev_info, struct rte_eth_conf *port_conf);
static int DeviceConfigureQueues(DPDKIfaceConfig *iconf, const struct rte_eth_dev_info *dev_info,
const struct rte_eth_conf *port_conf);
static int DeviceValidateOutIfaceConfig(DPDKIfaceConfig *iconf);
static int DeviceConfigureIPS(DPDKIfaceConfig *iconf);
static int DeviceConfigure(DPDKIfaceConfig *iconf);
static void *ParseDpdkConfigAndConfigureDevice(const char *iface);
static void DPDKDerefConfig(void *conf);
#define DPDK_CONFIG_DEFAULT_THREADS "auto"
#define DPDK_CONFIG_DEFAULT_INTERRUPT_MODE 0
#define DPDK_CONFIG_DEFAULT_MEMPOOL_SIZE 65535
#define DPDK_CONFIG_DEFAULT_MEMPOOL_CACHE_SIZE "auto"
#define DPDK_CONFIG_DEFAULT_RX_DESCRIPTORS 1024
#define DPDK_CONFIG_DEFAULT_TX_DESCRIPTORS 1024
#define DPDK_CONFIG_DEFAULT_RSS_HASH_FUNCTIONS RTE_ETH_RSS_IP
#define DPDK_CONFIG_DEFAULT_MTU 1500
#define DPDK_CONFIG_DEFAULT_PROMISCUOUS_MODE 1
#define DPDK_CONFIG_DEFAULT_MULTICAST_MODE 1
#define DPDK_CONFIG_DEFAULT_CHECKSUM_VALIDATION 1
#define DPDK_CONFIG_DEFAULT_CHECKSUM_VALIDATION_OFFLOAD 1
#define DPDK_CONFIG_DEFAULT_COPY_MODE "none"
#define DPDK_CONFIG_DEFAULT_COPY_INTERFACE "none"
DPDKIfaceConfigAttributes dpdk_yaml = {
.threads = "threads",
.irq_mode = "interrupt-mode",
.promisc = "promisc",
.multicast = "multicast",
.checksum_checks = "checksum-checks",
.checksum_checks_offload = "checksum-checks-offload",
.mtu = "mtu",
.rss_hf = "rss-hash-functions",
.mempool_size = "mempool-size",
.mempool_cache_size = "mempool-cache-size",
.rx_descriptors = "rx-descriptors",
.tx_descriptors = "tx-descriptors",
.copy_mode = "copy-mode",
.copy_iface = "copy-iface",
};
static int GreatestDivisorUpTo(uint32_t num, uint32_t max_num)
{
for (int i = max_num; i >= 2; i--) {
if (num % i == 0) {
return i;
}
}
return 1;
}
static char *AllocArgument(size_t arg_len)
{
SCEnter();
char *ptr;
arg_len += 1; // null character
ptr = (char *)SCCalloc(arg_len, sizeof(char));
if (ptr == NULL)
FatalError("Could not allocate memory for an argument");
SCReturnPtr(ptr, "char *");
}
/**
* Allocates space for length of the given string and then copies contents
* @param arg String to set to the newly allocated space
* @return memory address if no error otherwise NULL (with errno set)
*/
static char *AllocAndSetArgument(const char *arg)
{
SCEnter();
if (arg == NULL)
FatalError("Passed argument is NULL in DPDK config initialization");
char *ptr;
size_t arg_len = strlen(arg);
ptr = AllocArgument(arg_len);
strlcpy(ptr, arg, arg_len + 1);
SCReturnPtr(ptr, "char *");
}
static char *AllocAndSetOption(const char *arg)
{
SCEnter();
if (arg == NULL)
FatalError("Passed option is NULL in DPDK config initialization");
char *ptr = NULL;
size_t arg_len = strlen(arg);
uint8_t is_long_arg = arg_len > 1;
const char *dash_prefix = is_long_arg ? "--" : "-";
size_t full_len = arg_len + strlen(dash_prefix);
ptr = AllocArgument(full_len);
strlcpy(ptr, dash_prefix, strlen(dash_prefix) + 1);
strlcat(ptr, arg, full_len + 1);
SCReturnPtr(ptr, "char *");
}
static void ArgumentsInit(struct Arguments *args, unsigned capacity)
{
SCEnter();
args->argv = SCCalloc(capacity, sizeof(*args->argv)); // alloc array of pointers
if (args->argv == NULL)
FatalError("Could not allocate memory for Arguments structure");
args->capacity = capacity;
args->argc = 0;
SCReturn;
}
static void ArgumentsCleanup(struct Arguments *args)
{
SCEnter();
for (int i = 0; i < args->argc; i++) {
if (args->argv[i] != NULL) {
SCFree(args->argv[i]);
args->argv[i] = NULL;
}
}
SCFree(args->argv);
args->argv = NULL;
args->argc = 0;
args->capacity = 0;
}
static void ArgumentsAdd(struct Arguments *args, char *value)
{
SCEnter();
if (args->argc + 1 > args->capacity)
FatalError("No capacity for more arguments (Max: %" PRIu32 ")", EAL_ARGS);
args->argv[args->argc++] = value;
SCReturn;
}
static void ArgumentsAddOptionAndArgument(struct Arguments *args, const char *opt, const char *arg)
{
SCEnter();
char *option;
char *argument;
option = AllocAndSetOption(opt);
ArgumentsAdd(args, option);
// Empty argument could mean option only (e.g. --no-huge)
if (arg == NULL || arg[0] == '\0')
SCReturn;
argument = AllocAndSetArgument(arg);
ArgumentsAdd(args, argument);
SCReturn;
}
static void InitEal(void)
{
SCEnter();
int retval;
ConfNode *param;
const ConfNode *eal_params = ConfGetNode("dpdk.eal-params");
struct Arguments args;
char **eal_argv;
if (eal_params == NULL) {
FatalError("DPDK EAL parameters not found in the config");
}
ArgumentsInit(&args, EAL_ARGS);
ArgumentsAdd(&args, AllocAndSetArgument("suricata"));
TAILQ_FOREACH (param, &eal_params->head, next) {
if (ConfNodeIsSequence(param)) {
const char *key = param->name;
ConfNode *val;
TAILQ_FOREACH (val, ¶m->head, next) {
ArgumentsAddOptionAndArgument(&args, key, (const char *)val->val);
}
continue;
}
ArgumentsAddOptionAndArgument(&args, param->name, param->val);
}
// creating a shallow copy for cleanup because rte_eal_init changes array contents
eal_argv = SCCalloc(args.argc, sizeof(*args.argv));
if (eal_argv == NULL) {
FatalError("Failed to allocate memory for the array of DPDK EAL arguments");
}
memcpy(eal_argv, args.argv, args.argc * sizeof(*args.argv));
rte_log_set_global_level(RTE_LOG_WARNING);
retval = rte_eal_init(args.argc, eal_argv);
ArgumentsCleanup(&args);
SCFree(eal_argv);
if (retval < 0) { // retval bound to the result of rte_eal_init
FatalError("DPDK EAL initialization error: %s", rte_strerror(-retval));
}
DPDKSetTimevalOfMachineStart();
}
static void DPDKDerefConfig(void *conf)
{
SCEnter();
DPDKIfaceConfig *iconf = (DPDKIfaceConfig *)conf;
if (SC_ATOMIC_SUB(iconf->ref, 1) == 1) {
if (iconf->pkt_mempool != NULL) {
rte_mempool_free(iconf->pkt_mempool);
}
SCFree(iconf);
}
SCReturn;
}
static void ConfigInit(DPDKIfaceConfig **iconf)
{
SCEnter();
DPDKIfaceConfig *ptr = NULL;
ptr = SCCalloc(1, sizeof(DPDKIfaceConfig));
if (ptr == NULL)
FatalError("Could not allocate memory for DPDKIfaceConfig");
ptr->pkt_mempool = NULL;
ptr->out_port_id = -1; // make sure no port is set
SC_ATOMIC_INIT(ptr->ref);
(void)SC_ATOMIC_ADD(ptr->ref, 1);
ptr->DerefFunc = DPDKDerefConfig;
ptr->flags = 0;
*iconf = ptr;
SCReturn;
}
static void ConfigSetIface(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
int retval;
if (entry_str == NULL || entry_str[0] == '\0')
FatalError("Interface name in DPDK config is NULL or empty");
retval = rte_eth_dev_get_port_by_name(entry_str, &iconf->port_id);
if (retval < 0)
FatalError("Interface \"%s\": %s", entry_str, rte_strerror(-retval));
strlcpy(iconf->iface, entry_str, sizeof(iconf->iface));
SCReturn;
}
static int ConfigSetThreads(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
static int32_t remaining_auto_cpus = -1;
if (!threading_set_cpu_affinity) {
SCLogError("DPDK runmode requires configured thread affinity");
SCReturnInt(-EINVAL);
}
ThreadsAffinityType *wtaf = GetAffinityTypeFromName("worker-cpu-set");
if (wtaf == NULL) {
SCLogError("Specify worker-cpu-set list in the threading section");
SCReturnInt(-EINVAL);
}
ThreadsAffinityType *mtaf = GetAffinityTypeFromName("management-cpu-set");
if (mtaf == NULL) {
SCLogError("Specify management-cpu-set list in the threading section");
SCReturnInt(-EINVAL);
}
uint32_t sched_cpus = UtilAffinityGetAffinedCPUNum(wtaf);
if (sched_cpus == UtilCpuGetNumProcessorsOnline()) {
SCLogWarning(
"\"all\" specified in worker CPU cores affinity, excluding management threads");
UtilAffinityCpusExclude(wtaf, mtaf);
sched_cpus = UtilAffinityGetAffinedCPUNum(wtaf);
}
if (sched_cpus == 0) {
SCLogError("No worker CPU cores with configured affinity were configured");
SCReturnInt(-EINVAL);
} else if (UtilAffinityCpusOverlap(wtaf, mtaf) != 0) {
SCLogWarning("Worker threads should not overlap with management threads in the CPU core "
"affinity configuration");
}
const char *active_runmode = RunmodeGetActive();
if (active_runmode && !strcmp("single", active_runmode)) {
iconf->threads = 1;
SCReturnInt(0);
}
if (entry_str == NULL) {
SCLogError("Number of threads for interface \"%s\" not specified", iconf->iface);
SCReturnInt(-EINVAL);
}
if (strcmp(entry_str, "auto") == 0) {
iconf->threads = (uint16_t)sched_cpus / LiveGetDeviceCount();
if (iconf->threads == 0) {
SCLogError("Not enough worker CPU cores with affinity were configured");
SCReturnInt(-ERANGE);
}
if (remaining_auto_cpus > 0) {
iconf->threads++;
remaining_auto_cpus--;
} else if (remaining_auto_cpus == -1) {
remaining_auto_cpus = (int32_t)sched_cpus % LiveGetDeviceCount();
if (remaining_auto_cpus > 0) {
iconf->threads++;
remaining_auto_cpus--;
}
}
SCLogConfig("%s: auto-assigned %u threads", iconf->iface, iconf->threads);
SCReturnInt(0);
}
if (StringParseInt32(&iconf->threads, 10, 0, entry_str) < 0) {
SCLogError("Threads entry for interface %s contain non-numerical characters - \"%s\"",
iconf->iface, entry_str);
SCReturnInt(-EINVAL);
}
if (iconf->threads <= 0) {
SCLogError("%s: positive number of threads required", iconf->iface);
SCReturnInt(-ERANGE);
}
SCReturnInt(0);
}
static bool ConfigSetInterruptMode(DPDKIfaceConfig *iconf, int entry_bool)
{
SCEnter();
if (entry_bool)
iconf->flags |= DPDK_IRQ_MODE;
SCReturnBool(true);
}
static int ConfigSetRxQueues(DPDKIfaceConfig *iconf, uint16_t nb_queues)
{
SCEnter();
iconf->nb_rx_queues = nb_queues;
if (iconf->nb_rx_queues < 1) {
SCLogError("%s: positive number of RX queues is required", iconf->iface);
SCReturnInt(-ERANGE);
}
SCReturnInt(0);
}
static int ConfigSetTxQueues(DPDKIfaceConfig *iconf, uint16_t nb_queues)
{
SCEnter();
iconf->nb_tx_queues = nb_queues;
if (iconf->nb_tx_queues < 1) {
SCLogError("%s: positive number of TX queues is required", iconf->iface);
SCReturnInt(-ERANGE);
}
SCReturnInt(0);
}
static int ConfigSetMempoolSize(DPDKIfaceConfig *iconf, intmax_t entry_int)
{
SCEnter();
if (entry_int <= 0) {
SCLogError("%s: positive memory pool size is required", iconf->iface);
SCReturnInt(-ERANGE);
}
iconf->mempool_size = entry_int;
SCReturnInt(0);
}
static int ConfigSetMempoolCacheSize(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
if (entry_str == NULL || entry_str[0] == '\0' || strcmp(entry_str, "auto") == 0) {
// calculate the mempool size based on the mempool size (it needs to be already filled in)
// It is advised to have mempool cache size lower or equal to:
// RTE_MEMPOOL_CACHE_MAX_SIZE (by default 512) and "mempool-size / 1.5"
// and at the same time "mempool-size modulo cache_size == 0".
if (iconf->mempool_size == 0) {
SCLogError("%s: cannot calculate mempool cache size of a mempool with size %d",
iconf->iface, iconf->mempool_size);
SCReturnInt(-EINVAL);
}
uint32_t max_cache_size = MAX(RTE_MEMPOOL_CACHE_MAX_SIZE, iconf->mempool_size / 1.5);
iconf->mempool_cache_size = GreatestDivisorUpTo(iconf->mempool_size, max_cache_size);
SCReturnInt(0);
}
if (StringParseUint32(&iconf->mempool_cache_size, 10, 0, entry_str) < 0) {
SCLogError("%s: mempool cache size entry contain non-numerical characters - \"%s\"",
iconf->iface, entry_str);
SCReturnInt(-EINVAL);
}
if (iconf->mempool_cache_size <= 0 || iconf->mempool_cache_size > RTE_MEMPOOL_CACHE_MAX_SIZE) {
SCLogError("%s: mempool cache size requires a positive number smaller than %" PRIu32,
iconf->iface, RTE_MEMPOOL_CACHE_MAX_SIZE);
SCReturnInt(-ERANGE);
}
SCReturnInt(0);
}
static int ConfigSetRxDescriptors(DPDKIfaceConfig *iconf, intmax_t entry_int)
{
SCEnter();
if (entry_int <= 0) {
SCLogError("%s: positive number of RX descriptors is required", iconf->iface);
SCReturnInt(-ERANGE);
}
iconf->nb_rx_desc = entry_int;
SCReturnInt(0);
}
static int ConfigSetTxDescriptors(DPDKIfaceConfig *iconf, intmax_t entry_int)
{
SCEnter();
if (entry_int <= 0) {
SCLogError("%s: positive number of TX descriptors is required", iconf->iface);
SCReturnInt(-ERANGE);
}
iconf->nb_tx_desc = entry_int;
SCReturnInt(0);
}
static int ConfigSetRSSHashFunctions(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
if (entry_str == NULL || entry_str[0] == '\0' || strcmp(entry_str, "auto") == 0) {
iconf->rss_hf = DPDK_CONFIG_DEFAULT_RSS_HASH_FUNCTIONS;
SCReturnInt(0);
}
if (StringParseUint64(&iconf->rss_hf, 0, 0, entry_str) < 0) {
SCLogError("%s: RSS hash functions entry contain non-numerical characters - \"%s\"",
iconf->iface, entry_str);
SCReturnInt(-EINVAL);
}
SCReturnInt(0);
}
static int ConfigSetMtu(DPDKIfaceConfig *iconf, intmax_t entry_int)
{
SCEnter();
if (entry_int < RTE_ETHER_MIN_MTU || entry_int > RTE_ETHER_MAX_JUMBO_FRAME_LEN) {
SCLogError("%s: MTU size can only be between %" PRIu32 " and %" PRIu32, iconf->iface,
RTE_ETHER_MIN_MTU, RTE_ETHER_MAX_JUMBO_FRAME_LEN);
SCReturnInt(-ERANGE);
}
iconf->mtu = entry_int;
SCReturnInt(0);
}
static bool ConfigSetPromiscuousMode(DPDKIfaceConfig *iconf, int entry_bool)
{
SCEnter();
if (entry_bool)
iconf->flags |= DPDK_PROMISC;
SCReturnBool(true);
}
static bool ConfigSetMulticast(DPDKIfaceConfig *iconf, int entry_bool)
{
SCEnter();
if (entry_bool)
iconf->flags |= DPDK_MULTICAST; // enable
SCReturnBool(true);
}
static int ConfigSetChecksumChecks(DPDKIfaceConfig *iconf, int entry_bool)
{
SCEnter();
if (entry_bool)
iconf->checksum_mode = CHECKSUM_VALIDATION_ENABLE;
SCReturnInt(0);
}
static int ConfigSetChecksumOffload(DPDKIfaceConfig *iconf, int entry_bool)
{
SCEnter();
if (entry_bool)
iconf->flags |= DPDK_RX_CHECKSUM_OFFLOAD;
SCReturnInt(0);
}
static int ConfigSetCopyIface(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
int retval;
if (entry_str == NULL || entry_str[0] == '\0' || strcmp(entry_str, "none") == 0) {
iconf->out_iface = NULL;
SCReturnInt(0);
}
retval = rte_eth_dev_get_port_by_name(entry_str, &iconf->out_port_id);
if (retval < 0) {
SCLogError("%s: name of the copy interface (%s) is invalid (err %s)", iconf->iface,
entry_str, rte_strerror(-retval));
SCReturnInt(retval);
}
iconf->out_iface = entry_str;
SCReturnInt(0);
}
static int ConfigSetCopyMode(DPDKIfaceConfig *iconf, const char *entry_str)
{
SCEnter();
if (entry_str == NULL) {
SCLogWarning("%s: no copy mode specified, changing to %s ", iconf->iface,
DPDK_CONFIG_DEFAULT_COPY_MODE);
entry_str = DPDK_CONFIG_DEFAULT_COPY_MODE;
}
if (strcmp(entry_str, "none") != 0 && strcmp(entry_str, "tap") != 0 &&
strcmp(entry_str, "ips") != 0) {
SCLogWarning("%s: copy mode \"%s\" is not one of the possible values (none|tap|ips). "
"Changing to %s",
entry_str, iconf->iface, DPDK_CONFIG_DEFAULT_COPY_MODE);
entry_str = DPDK_CONFIG_DEFAULT_COPY_MODE;
}
if (strcmp(entry_str, "none") == 0) {
iconf->copy_mode = DPDK_COPY_MODE_NONE;
} else if (strcmp(entry_str, "tap") == 0) {
iconf->copy_mode = DPDK_COPY_MODE_TAP;
} else if (strcmp(entry_str, "ips") == 0) {
iconf->copy_mode = DPDK_COPY_MODE_IPS;
}
SCReturnInt(0);
}
static int ConfigSetCopyIfaceSettings(DPDKIfaceConfig *iconf, const char *iface, const char *mode)
{
SCEnter();
int retval;
retval = ConfigSetCopyIface(iconf, iface);
if (retval < 0)
SCReturnInt(retval);
retval = ConfigSetCopyMode(iconf, mode);
if (retval < 0)
SCReturnInt(retval);
if (iconf->copy_mode == DPDK_COPY_MODE_NONE) {
if (iconf->out_iface != NULL)
iconf->out_iface = NULL;
SCReturnInt(0);
}
if (iconf->out_iface == NULL || strlen(iconf->out_iface) <= 0) {
SCLogError("%s: copy mode enabled but interface not set", iconf->iface);
SCReturnInt(-EINVAL);
}
SCReturnInt(0);
}
static int ConfigLoad(DPDKIfaceConfig *iconf, const char *iface)
{
SCEnter();
int retval;
ConfNode *if_root;
ConfNode *if_default;
const char *entry_str = NULL;
intmax_t entry_int = 0;
int entry_bool = 0;
const char *copy_iface_str = NULL;
const char *copy_mode_str = NULL;
ConfigSetIface(iconf, iface);
retval = ConfSetRootAndDefaultNodes("dpdk.interfaces", iconf->iface, &if_root, &if_default);
if (retval < 0) {
FatalError("failed to find DPDK configuration for the interface %s", iconf->iface);
}
retval = ConfGetChildValueWithDefault(if_root, if_default, dpdk_yaml.threads, &entry_str) != 1
? ConfigSetThreads(iconf, DPDK_CONFIG_DEFAULT_THREADS)
: ConfigSetThreads(iconf, entry_str);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueBoolWithDefault(
if_root, if_default, dpdk_yaml.irq_mode, &entry_bool) != 1
? ConfigSetInterruptMode(iconf, DPDK_CONFIG_DEFAULT_INTERRUPT_MODE)
: ConfigSetInterruptMode(iconf, entry_bool);
if (retval != true)
SCReturnInt(-EINVAL);
// currently only mapping "1 thread == 1 RX (and 1 TX queue in IPS mode)" is supported
retval = ConfigSetRxQueues(iconf, (uint16_t)iconf->threads);
if (retval < 0)
SCReturnInt(retval);
// currently only mapping "1 thread == 1 RX (and 1 TX queue in IPS mode)" is supported
retval = ConfigSetTxQueues(iconf, (uint16_t)iconf->threads);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueIntWithDefault(
if_root, if_default, dpdk_yaml.mempool_size, &entry_int) != 1
? ConfigSetMempoolSize(iconf, DPDK_CONFIG_DEFAULT_MEMPOOL_SIZE)
: ConfigSetMempoolSize(iconf, entry_int);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueWithDefault(
if_root, if_default, dpdk_yaml.mempool_cache_size, &entry_str) != 1
? ConfigSetMempoolCacheSize(iconf, DPDK_CONFIG_DEFAULT_MEMPOOL_CACHE_SIZE)
: ConfigSetMempoolCacheSize(iconf, entry_str);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueIntWithDefault(
if_root, if_default, dpdk_yaml.rx_descriptors, &entry_int) != 1
? ConfigSetRxDescriptors(iconf, DPDK_CONFIG_DEFAULT_RX_DESCRIPTORS)
: ConfigSetRxDescriptors(iconf, entry_int);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueIntWithDefault(
if_root, if_default, dpdk_yaml.tx_descriptors, &entry_int) != 1
? ConfigSetTxDescriptors(iconf, DPDK_CONFIG_DEFAULT_TX_DESCRIPTORS)
: ConfigSetTxDescriptors(iconf, entry_int);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueIntWithDefault(if_root, if_default, dpdk_yaml.mtu, &entry_int) != 1
? ConfigSetMtu(iconf, DPDK_CONFIG_DEFAULT_MTU)
: ConfigSetMtu(iconf, entry_int);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueWithDefault(if_root, if_default, dpdk_yaml.rss_hf, &entry_str) != 1
? ConfigSetRSSHashFunctions(iconf, NULL)
: ConfigSetRSSHashFunctions(iconf, entry_str);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueBoolWithDefault(
if_root, if_default, dpdk_yaml.promisc, &entry_bool) != 1
? ConfigSetPromiscuousMode(iconf, DPDK_CONFIG_DEFAULT_PROMISCUOUS_MODE)
: ConfigSetPromiscuousMode(iconf, entry_bool);
if (retval != true)
SCReturnInt(-EINVAL);
retval = ConfGetChildValueBoolWithDefault(
if_root, if_default, dpdk_yaml.multicast, &entry_bool) != 1
? ConfigSetMulticast(iconf, DPDK_CONFIG_DEFAULT_MULTICAST_MODE)
: ConfigSetMulticast(iconf, entry_bool);
if (retval != true)
SCReturnInt(-EINVAL);
retval = ConfGetChildValueBoolWithDefault(
if_root, if_default, dpdk_yaml.checksum_checks, &entry_bool) != 1
? ConfigSetChecksumChecks(iconf, DPDK_CONFIG_DEFAULT_CHECKSUM_VALIDATION)
: ConfigSetChecksumChecks(iconf, entry_bool);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueBoolWithDefault(
if_root, if_default, dpdk_yaml.checksum_checks_offload, &entry_bool) != 1
? ConfigSetChecksumOffload(
iconf, DPDK_CONFIG_DEFAULT_CHECKSUM_VALIDATION_OFFLOAD)
: ConfigSetChecksumOffload(iconf, entry_bool);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueWithDefault(if_root, if_default, dpdk_yaml.copy_mode, ©_mode_str);
if (retval != 1)
SCReturnInt(-ENOENT);
if (retval < 0)
SCReturnInt(retval);
retval = ConfGetChildValueWithDefault(
if_root, if_default, dpdk_yaml.copy_iface, ©_iface_str);
if (retval != 1)
SCReturnInt(-ENOENT);
if (retval < 0)
SCReturnInt(retval);
retval = ConfigSetCopyIfaceSettings(iconf, copy_iface_str, copy_mode_str);
if (retval < 0)
SCReturnInt(retval);
SCReturnInt(0);
}
static int32_t ConfigValidateThreads(uint16_t iface_threads)
{
static uint32_t total_cpus = 0;
total_cpus += iface_threads;
ThreadsAffinityType *wtaf = GetAffinityTypeFromName("worker-cpu-set");
if (wtaf == NULL) {
SCLogError("Specify worker-cpu-set list in the threading section");
return -1;
}
if (total_cpus > UtilAffinityGetAffinedCPUNum(wtaf)) {
SCLogError("Interfaces requested more cores than configured in the threading section "
"(requested %d configured %d",
total_cpus, UtilAffinityGetAffinedCPUNum(wtaf));
return -1;
}
return 0;
}
static DPDKIfaceConfig *ConfigParse(const char *iface)
{
SCEnter();
int retval;
DPDKIfaceConfig *iconf = NULL;
if (iface == NULL)
FatalError("DPDK interface is NULL");
ConfigInit(&iconf);
retval = ConfigLoad(iconf, iface);
if (retval < 0 || ConfigValidateThreads(iconf->threads) != 0) {
iconf->DerefFunc(iconf);
SCReturnPtr(NULL, "void *");
}
SCReturnPtr(iconf, "DPDKIfaceConfig *");
}
static void DeviceSetPMDSpecificRSS(struct rte_eth_rss_conf *rss_conf, const char *driver_name)
{
// RSS is configured in a specific way for a driver i40e and DPDK version <= 19.xx
if (strcmp(driver_name, "net_i40e") == 0)
i40eDeviceSetRSSConf(rss_conf);
if (strcmp(driver_name, "net_ice") == 0)
iceDeviceSetRSSHashFunction(&rss_conf->rss_hf);
if (strcmp(driver_name, "net_ixgbe") == 0)
ixgbeDeviceSetRSSHashFunction(&rss_conf->rss_hf);
if (strcmp(driver_name, "net_e1000_igb") == 0)
rss_conf->rss_hf = (RTE_ETH_RSS_IPV4 | RTE_ETH_RSS_IPV6 | RTE_ETH_RSS_IPV6_EX);
}
// Returns -1 if no bit is set
static int GetFirstSetBitPosition(uint64_t bits)
{
for (uint64_t i = 0; i < 64; i++) {
if (bits & BIT_U64(i))
return i;
}
return -1;
}
static void DumpRSSFlags(const uint64_t requested, const uint64_t actual)
{
SCLogConfig("REQUESTED (groups):");
SCLogConfig(
"RTE_ETH_RSS_IP %sset", ((requested & RTE_ETH_RSS_IP) == RTE_ETH_RSS_IP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_TCP %sset",
((requested & RTE_ETH_RSS_TCP) == RTE_ETH_RSS_TCP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_UDP %sset",
((requested & RTE_ETH_RSS_UDP) == RTE_ETH_RSS_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_SCTP %sset",
((requested & RTE_ETH_RSS_SCTP) == RTE_ETH_RSS_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_TUNNEL %sset",
((requested & RTE_ETH_RSS_TUNNEL) == RTE_ETH_RSS_TUNNEL) ? "" : "NOT ");
SCLogConfig("REQUESTED (individual):");
SCLogConfig("RTE_ETH_RSS_IPV4 (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_IPV4), (requested & RTE_ETH_RSS_IPV4) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_FRAG_IPV4 (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_FRAG_IPV4),
(requested & RTE_ETH_RSS_FRAG_IPV4) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_TCP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV4_TCP),
(requested & RTE_ETH_RSS_NONFRAG_IPV4_TCP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_UDP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV4_UDP),
(requested & RTE_ETH_RSS_NONFRAG_IPV4_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_SCTP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV4_SCTP),
(requested & RTE_ETH_RSS_NONFRAG_IPV4_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_OTHER (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV4_OTHER),
(requested & RTE_ETH_RSS_NONFRAG_IPV4_OTHER) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6 (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_IPV6), (requested & RTE_ETH_RSS_IPV6) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_FRAG_IPV6 (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_FRAG_IPV6),
(requested & RTE_ETH_RSS_FRAG_IPV6) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_TCP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV6_TCP),
(requested & RTE_ETH_RSS_NONFRAG_IPV6_TCP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_UDP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV6_UDP),
(requested & RTE_ETH_RSS_NONFRAG_IPV6_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_SCTP (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV6_SCTP),
(requested & RTE_ETH_RSS_NONFRAG_IPV6_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_OTHER (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NONFRAG_IPV6_OTHER),
(requested & RTE_ETH_RSS_NONFRAG_IPV6_OTHER) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L2_PAYLOAD (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_L2_PAYLOAD),
(requested & RTE_ETH_RSS_L2_PAYLOAD) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_EX (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_IPV6_EX),
(requested & RTE_ETH_RSS_IPV6_EX) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_TCP_EX (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_IPV6_TCP_EX),
(requested & RTE_ETH_RSS_IPV6_TCP_EX) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_UDP_EX (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_IPV6_UDP_EX),
(requested & RTE_ETH_RSS_IPV6_UDP_EX) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_PORT (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_PORT), (requested & RTE_ETH_RSS_PORT) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_VXLAN (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_VXLAN),
(requested & RTE_ETH_RSS_VXLAN) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NVGRE (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_NVGRE),
(requested & RTE_ETH_RSS_NVGRE) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_GTPU (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_GTPU), (requested & RTE_ETH_RSS_GTPU) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L3_SRC_ONLY (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_L3_SRC_ONLY),
(requested & RTE_ETH_RSS_L3_SRC_ONLY) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L3_DST_ONLY (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_L3_DST_ONLY),
(requested & RTE_ETH_RSS_L3_DST_ONLY) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L4_SRC_ONLY (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_L4_SRC_ONLY),
(requested & RTE_ETH_RSS_L4_SRC_ONLY) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L4_DST_ONLY (Bit position: %d) %sset",
GetFirstSetBitPosition(RTE_ETH_RSS_L4_DST_ONLY),
(requested & RTE_ETH_RSS_L4_DST_ONLY) ? "" : "NOT ");
SCLogConfig("ACTUAL (group):");
SCLogConfig(
"RTE_ETH_RSS_IP %sset", ((actual & RTE_ETH_RSS_IP) == RTE_ETH_RSS_IP) ? "" : "NOT ");
SCLogConfig(
"RTE_ETH_RSS_TCP %sset", ((actual & RTE_ETH_RSS_TCP) == RTE_ETH_RSS_TCP) ? "" : "NOT ");
SCLogConfig(
"RTE_ETH_RSS_UDP %sset", ((actual & RTE_ETH_RSS_UDP) == RTE_ETH_RSS_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_SCTP %sset",
((actual & RTE_ETH_RSS_SCTP) == RTE_ETH_RSS_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_TUNNEL %sset",
((actual & RTE_ETH_RSS_TUNNEL) == RTE_ETH_RSS_TUNNEL) ? "" : "NOT ");
SCLogConfig("ACTUAL (individual flags):");
SCLogConfig("RTE_ETH_RSS_IPV4 %sset", (actual & RTE_ETH_RSS_IPV4) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_FRAG_IPV4 %sset", (actual & RTE_ETH_RSS_FRAG_IPV4) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_TCP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV4_TCP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_UDP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV4_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_SCTP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV4_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV4_OTHER %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV4_OTHER) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6 %sset", (actual & RTE_ETH_RSS_IPV6) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_FRAG_IPV6 %sset", (actual & RTE_ETH_RSS_FRAG_IPV6) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_TCP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV6_TCP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_UDP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV6_UDP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_SCTP %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV6_SCTP) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_NONFRAG_IPV6_OTHER %sset",
(actual & RTE_ETH_RSS_NONFRAG_IPV6_OTHER) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_L2_PAYLOAD %sset", (actual & RTE_ETH_RSS_L2_PAYLOAD) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_EX %sset", (actual & RTE_ETH_RSS_IPV6_EX) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_TCP_EX %sset", (actual & RTE_ETH_RSS_IPV6_TCP_EX) ? "" : "NOT ");
SCLogConfig("RTE_ETH_RSS_IPV6_UDP_EX %sset", (actual & RTE_ETH_RSS_IPV6_UDP_EX) ? "" : "NOT ");