dpdk rte_memzone_reserve
作者：互联网
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_memory.h>
#include <rte_launch.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_debug.h>
#include <rte_memzone.h>
#include <unistd.h>
#include "eal_private.h"
static int
lcore_hello(__attribute__((unused)) void *arg)
{
unsigned lcore_id, socket_id;
lcore_id = rte_lcore_id();
socket_id = rte_socket_id();
printf("hello from core %u\n", lcore_id);
printf("socket id %u\n", socket_id);
sleep(60);
return 0;
}
int
main(int argc, char **argv)
{
int ret;
unsigned lcore_id;
const struct rte_memzone *mz;
int *arr;
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_panic("Cannot init EAL\n");
if (rte_eal_process_type() == RTE_PROC_PRIMARY){
mz = rte_memzone_reserve("memzone", sizeof(int)*2,
SOCKET_ID_ANY, 0);
}
else {
mz = rte_memzone_lookup("memzone");
}
if (mz == NULL)
rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n");
printf("mz addr: %llx, mz->addr :%llx , mz->addr_64 : %llx\n", (long long)mz, (long long)(mz->addr), mz->addr_64);
printf("arr addr: %llx \n", (unsigned long long)(&arr));
arr = (int *)rte_malloc("arr", sizeof(int) * 1024, 0);
//arr = (int *)rte_malloc(NULL, sizeof(int) * 1024, 0);
if (arr == NULL)
rte_exit(EXIT_FAILURE, "Cannot malloc memory \n");
printf("arr addr: %llx \n", (unsigned long long)arr);
/* call lcore_hello() on every slave lcore */
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
rte_eal_remote_launch(lcore_hello, NULL, lcore_id);
}
if (rte_eal_process_type() == RTE_PROC_PRIMARY){
((int *)(mz->addr))[0] =9999;
}
else {
printf("(mz->addr)[0] : %d \n", ((int*)(mz->addr))[0]);
}
//arr[0]=4;
/* call it on master lcore too */
lcore_hello(NULL);
struct rte_config *tmp_config;
tmp_config=rte_eal_get_configuration();
printf("rte_config addr : %llx \n", (unsigned long long )tmp_config);
rte_eal_mp_wait_lcore();
//rte_free(arr);
return 0;
}
[root@localhost memzone]# build/app/helloworld -c 0xf -n 4 --proc-type=primary EAL: Detected 128 lcore(s) EAL: Detected 4 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'PA' EAL: Probing VFIO support... EAL: VFIO support initialized EAL: PCI device 0000:05:00.0 on NUMA socket 0 EAL: probe driver: 19e5:200 net_hinic EAL: using IOMMU type 1 (Type 1) net_hinic: Initializing pf hinic-0000:05:00.0 in primary process net_hinic: Device 0000:05:00.0 hwif attribute: net_hinic: func_idx:0, p2p_idx:0, pciintf_idx:0, vf_in_pf:0, ppf_idx:0, global_vf_id:15, func_type:2 net_hinic: num_aeqs:4, num_ceqs:4, num_irqs:32, dma_attr:2 net_hinic: Get public resource capability: net_hinic: host_id: 0x0, ep_id: 0x0, intr_type: 0x0, max_cos_id: 0x7, er_id: 0x0, port_id: 0x0 net_hinic: host_total_function: 0xf2, host_oq_id_mask_val: 0x8, max_vf: 0x78 net_hinic: pf_num: 0x2, pf_id_start: 0x0, vf_num: 0xf0, vf_id_start: 0x10 net_hinic: Get share resource capability: net_hinic: host_pctxs: 0x0, host_cctxs: 0x0, host_scqs: 0x0, host_srqs: 0x0, host_mpts: 0x0 net_hinic: Get l2nic resource capability: net_hinic: max_sqs: 0x10, max_rqs: 0x10, vf_max_sqs: 0x4, vf_max_rqs: 0x4 net_hinic: Initialize 0000:05:00.0 in primary successfully EAL: PCI device 0000:06:00.0 on NUMA socket 0 EAL: probe driver: 19e5:200 net_hinic EAL: PCI device 0000:7d:00.0 on NUMA socket 0 EAL: probe driver: 19e5:a222 net_hns3 EAL: PCI device 0000:7d:00.1 on NUMA socket 0 EAL: probe driver: 19e5:a221 net_hns3 EAL: PCI device 0000:7d:00.2 on NUMA socket 0 EAL: probe driver: 19e5:a222 net_hns3 EAL: PCI device 0000:7d:00.3 on NUMA socket 0 EAL: probe driver: 19e5:a221 net_hns3 mz addr: 100012838, mz->addr :42002bc780 , mz->addr_64 : 42002bc780 arr addr: ffffe08a5768 arr addr: 2bb700 hello from core 1 socket id 0 hello from core 2 socket id 0 hello from core 0 socket id 0 hello from core 3 socket id 0 rte_config addr : affea8
[root@localhost memzone]# build/app/helloworld -c 0xf -n 4 --proc-type=secondary EAL: Detected 128 lcore(s) EAL: Detected 4 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket_62051_36199956461d EAL: Selected IOVA mode 'PA' EAL: Probing VFIO support... EAL: VFIO support initialized EAL: PCI device 0000:05:00.0 on NUMA socket 0 EAL: probe driver: 19e5:200 net_hinic EAL: using IOMMU type 1 (Type 1) net_hinic: Initializing pf hinic-0000:05:00.0 in secondary process net_hinic: Initialize 0000:05:00.0 in secondary process EAL: PCI device 0000:06:00.0 on NUMA socket 0 EAL: probe driver: 19e5:200 net_hinic EAL: PCI device 0000:7d:00.0 on NUMA socket 0 EAL: probe driver: 19e5:a222 net_hns3 EAL: PCI device 0000:7d:00.1 on NUMA socket 0 EAL: probe driver: 19e5:a221 net_hns3 EAL: PCI device 0000:7d:00.2 on NUMA socket 0 EAL: probe driver: 19e5:a222 net_hns3 EAL: PCI device 0000:7d:00.3 on NUMA socket 0 EAL: probe driver: 19e5:a221 net_hns3 mz addr: 100012838, mz->addr :42002bc780 , mz->addr_64 : 42002bc780 arr addr: ffffdb1b7d98 arr addr: 290580 hello from core 1 socket id 0 hello from core 2 socket id 0 (mz->addr)[0] : 9999 hello from core 0 socket id 0 hello from core 3 socket id 0 rte_config addr : affea8
标签：rte,addr,socket,net,reserve,id,memzone,EAL 来源： https://www.cnblogs.com/dream397/p/13596697.html