+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/wait.h>
-
-#include "test.h"
-
-#include <rte_string_fns.h>
-#include <rte_mempool.h>
-#include <rte_ethdev.h>
-#include <rte_cycles.h>
-#include <rte_kni.h>
-
-#define NB_MBUF 8192
-#define MAX_PACKET_SZ 2048
-#define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
-#define PKT_BURST_SZ 32
-#define MEMPOOL_CACHE_SZ PKT_BURST_SZ
-#define SOCKET 0
-#define NB_RXD 128
-#define NB_TXD 512
-#define KNI_TIMEOUT_MS 5000 /* ms */
-
-#define IFCONFIG "/sbin/ifconfig "
-#define TEST_KNI_PORT "test_kni_port"
-#define KNI_TEST_MAX_PORTS 4
-/* The threshold number of mbufs to be transmitted or received. */
-#define KNI_NUM_MBUF_THRESHOLD 100
-static int kni_pkt_mtu = 0;
-
-struct test_kni_stats {
- volatile uint64_t ingress;
- volatile uint64_t egress;
-};
-
-static const struct rte_eth_rxconf rx_conf = {
- .rx_thresh = {
- .pthresh = 8,
- .hthresh = 8,
- .wthresh = 4,
- },
- .rx_free_thresh = 0,
-};
-
-static const struct rte_eth_txconf tx_conf = {
- .tx_thresh = {
- .pthresh = 36,
- .hthresh = 0,
- .wthresh = 0,
- },
- .tx_free_thresh = 0,
- .tx_rs_thresh = 0,
-};
-
-static const struct rte_eth_conf port_conf = {
- .rxmode = {
- .header_split = 0,
- .hw_ip_checksum = 0,
- .hw_vlan_filter = 0,
- .jumbo_frame = 0,
- .hw_strip_crc = 0,
- },
- .txmode = {
- .mq_mode = ETH_DCB_NONE,
- },
-};
-
-static struct rte_kni_ops kni_ops = {
- .change_mtu = NULL,
- .config_network_if = NULL,
-};
-
-static unsigned lcore_master, lcore_ingress, lcore_egress;
-static struct rte_kni *test_kni_ctx;
-static struct test_kni_stats stats;
-
-static volatile uint32_t test_kni_processing_flag;
-
-static struct rte_mempool *
-test_kni_create_mempool(void)
-{
- struct rte_mempool * mp;
-
- mp = rte_mempool_lookup("kni_mempool");
- if (!mp)
- mp = rte_pktmbuf_pool_create("kni_mempool",
- NB_MBUF,
- MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ,
- SOCKET);
-
- return mp;
-}
-
-static struct rte_mempool *
-test_kni_lookup_mempool(void)
-{
- return rte_mempool_lookup("kni_mempool");
-}
-/* Callback for request of changing MTU */
-static int
-kni_change_mtu(uint8_t port_id, unsigned new_mtu)
-{
- printf("Change MTU of port %d to %u\n", port_id, new_mtu);
- kni_pkt_mtu = new_mtu;
- printf("Change MTU of port %d to %i successfully.\n",
- port_id, kni_pkt_mtu);
- return 0;
-}
-/**
- * This loop fully tests the basic functions of KNI. e.g. transmitting,
- * receiving to, from kernel space, and kernel requests.
- *
- * This is the loop to transmit/receive mbufs to/from kernel interface with
- * supported by KNI kernel module. The ingress lcore will allocate mbufs and
- * transmit them to kernel space; while the egress lcore will receive the mbufs
- * from kernel space and free them.
- * On the master lcore, several commands will be run to check handling the
- * kernel requests. And it will finally set the flag to exit the KNI
- * transmitting/receiving to/from the kernel space.
- *
- * Note: To support this testing, the KNI kernel module needs to be insmodded
- * in one of its loopback modes.
- */
-static int
-test_kni_loop(__rte_unused void *arg)
-{
- int ret = 0;
- unsigned nb_rx, nb_tx, num, i;
- const unsigned lcore_id = rte_lcore_id();
- struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
-
- if (lcore_id == lcore_master) {
- rte_delay_ms(KNI_TIMEOUT_MS);
- /* tests of handling kernel request */
- if (system(IFCONFIG TEST_KNI_PORT" up") == -1)
- ret = -1;
- if (system(IFCONFIG TEST_KNI_PORT" mtu 1400") == -1)
- ret = -1;
- if (system(IFCONFIG TEST_KNI_PORT" down") == -1)
- ret = -1;
- rte_delay_ms(KNI_TIMEOUT_MS);
- test_kni_processing_flag = 1;
- } else if (lcore_id == lcore_ingress) {
- struct rte_mempool *mp = test_kni_lookup_mempool();
-
- if (mp == NULL)
- return -1;
-
- while (1) {
- if (test_kni_processing_flag)
- break;
-
- for (nb_rx = 0; nb_rx < PKT_BURST_SZ; nb_rx++) {
- pkts_burst[nb_rx] = rte_pktmbuf_alloc(mp);
- if (!pkts_burst[nb_rx])
- break;
- }
-
- num = rte_kni_tx_burst(test_kni_ctx, pkts_burst,
- nb_rx);
- stats.ingress += num;
- rte_kni_handle_request(test_kni_ctx);
- if (num < nb_rx) {
- for (i = num; i < nb_rx; i++) {
- rte_pktmbuf_free(pkts_burst[i]);
- }
- }
- rte_delay_ms(10);
- }
- } else if (lcore_id == lcore_egress) {
- while (1) {
- if (test_kni_processing_flag)
- break;
- num = rte_kni_rx_burst(test_kni_ctx, pkts_burst,
- PKT_BURST_SZ);
- stats.egress += num;
- for (nb_tx = 0; nb_tx < num; nb_tx++)
- rte_pktmbuf_free(pkts_burst[nb_tx]);
- rte_delay_ms(10);
- }
- }
-
- return ret;
-}
-
-static int
-test_kni_allocate_lcores(void)
-{
- unsigned i, count = 0;
-
- lcore_master = rte_get_master_lcore();
- printf("master lcore: %u\n", lcore_master);
- for (i = 0; i < RTE_MAX_LCORE; i++) {
- if (count >=2 )
- break;
- if (rte_lcore_is_enabled(i) && i != lcore_master) {
- count ++;
- if (count == 1)
- lcore_ingress = i;
- else if (count == 2)
- lcore_egress = i;
- }
- }
- printf("count: %u\n", count);
-
- return count == 2 ? 0 : -1;
-}
-
-static int
-test_kni_register_handler_mp(void)
-{
-#define TEST_KNI_HANDLE_REQ_COUNT 10 /* 5s */
-#define TEST_KNI_HANDLE_REQ_INTERVAL 500 /* ms */
-#define TEST_KNI_MTU 1450
-#define TEST_KNI_MTU_STR " 1450"
- int pid;
-
- pid = fork();
- if (pid < 0) {
- printf("Failed to fork a process\n");
- return -1;
- } else if (pid == 0) {
- int i;
- struct rte_kni *kni = rte_kni_get(TEST_KNI_PORT);
- struct rte_kni_ops ops = {
- .change_mtu = kni_change_mtu,
- .config_network_if = NULL,
- };
-
- if (!kni) {
- printf("Failed to get KNI named %s\n", TEST_KNI_PORT);
- exit(-1);
- }
-
- kni_pkt_mtu = 0;
-
- /* Check with the invalid parameters */
- if (rte_kni_register_handlers(kni, NULL) == 0) {
- printf("Unexpectedly register successuflly "
- "with NULL ops pointer\n");
- exit(-1);
- }
- if (rte_kni_register_handlers(NULL, &ops) == 0) {
- printf("Unexpectedly register successfully "
- "to NULL KNI device pointer\n");
- exit(-1);
- }
-
- if (rte_kni_register_handlers(kni, &ops)) {
- printf("Fail to register ops\n");
- exit(-1);
- }
-
- /* Check registering again after it has been registered */
- if (rte_kni_register_handlers(kni, &ops) == 0) {
- printf("Unexpectedly register successfully after "
- "it has already been registered\n");
- exit(-1);
- }
-
- /**
- * Handle the request of setting MTU,
- * with registered handlers.
- */
- for (i = 0; i < TEST_KNI_HANDLE_REQ_COUNT; i++) {
- rte_kni_handle_request(kni);
- if (kni_pkt_mtu == TEST_KNI_MTU)
- break;
- rte_delay_ms(TEST_KNI_HANDLE_REQ_INTERVAL);
- }
- if (i >= TEST_KNI_HANDLE_REQ_COUNT) {
- printf("MTU has not been set\n");
- exit(-1);
- }
-
- kni_pkt_mtu = 0;
- if (rte_kni_unregister_handlers(kni) < 0) {
- printf("Fail to unregister ops\n");
- exit(-1);
- }
-
- /* Check with invalid parameter */
- if (rte_kni_unregister_handlers(NULL) == 0) {
- exit(-1);
- }
-
- /**
- * Handle the request of setting MTU,
- * without registered handlers.
- */
- for (i = 0; i < TEST_KNI_HANDLE_REQ_COUNT; i++) {
- rte_kni_handle_request(kni);
- if (kni_pkt_mtu != 0)
- break;
- rte_delay_ms(TEST_KNI_HANDLE_REQ_INTERVAL);
- }
- if (kni_pkt_mtu != 0) {
- printf("MTU shouldn't be set\n");
- exit(-1);
- }
-
- exit(0);
- } else {
- int p_ret, status;
-
- rte_delay_ms(1000);
- if (system(IFCONFIG TEST_KNI_PORT " mtu" TEST_KNI_MTU_STR)
- == -1)
- return -1;
-
- rte_delay_ms(1000);
- if (system(IFCONFIG TEST_KNI_PORT " mtu" TEST_KNI_MTU_STR)
- == -1)
- return -1;
-
- p_ret = wait(&status);
- if (!WIFEXITED(status)) {
- printf("Child process (%d) exit abnormally\n", p_ret);
- return -1;
- }
- if (WEXITSTATUS(status) != 0) {
- printf("Child process exit with failure\n");
- return -1;
- }
- }
-
- return 0;
-}
-
-static int
-test_kni_processing(uint8_t port_id, struct rte_mempool *mp)
-{
- int ret = 0;
- unsigned i;
- struct rte_kni *kni;
- struct rte_kni_conf conf;
- struct rte_eth_dev_info info;
- struct rte_kni_ops ops;
-
- if (!mp)
- return -1;
-
- memset(&conf, 0, sizeof(conf));
- memset(&info, 0, sizeof(info));
- memset(&ops, 0, sizeof(ops));
-
- rte_eth_dev_info_get(port_id, &info);
- conf.addr = info.pci_dev->addr;
- conf.id = info.pci_dev->id;
- snprintf(conf.name, sizeof(conf.name), TEST_KNI_PORT);
-
- /* core id 1 configured for kernel thread */
- conf.core_id = 1;
- conf.force_bind = 1;
- conf.mbuf_size = MAX_PACKET_SZ;
- conf.group_id = (uint16_t)port_id;
-
- ops = kni_ops;
- ops.port_id = port_id;
-
- /* basic test of kni processing */
- kni = rte_kni_alloc(mp, &conf, &ops);
- if (!kni) {
- printf("fail to create kni\n");
- return -1;
- }
-
- test_kni_ctx = kni;
- test_kni_processing_flag = 0;
- stats.ingress = 0;
- stats.egress = 0;
-
- /**
- * Check multiple processes support on
- * registerring/unregisterring handlers.
- */
- if (test_kni_register_handler_mp() < 0) {
- printf("fail to check multiple process support\n");
- ret = -1;
- goto fail_kni;
- }
-
- rte_eal_mp_remote_launch(test_kni_loop, NULL, CALL_MASTER);
- RTE_LCORE_FOREACH_SLAVE(i) {
- if (rte_eal_wait_lcore(i) < 0) {
- ret = -1;
- goto fail_kni;
- }
- }
- /**
- * Check if the number of mbufs received from kernel space is equal
- * to that of transmitted to kernel space
- */
- if (stats.ingress < KNI_NUM_MBUF_THRESHOLD ||
- stats.egress < KNI_NUM_MBUF_THRESHOLD) {
- printf("The ingress/egress number should not be "
- "less than %u\n", (unsigned)KNI_NUM_MBUF_THRESHOLD);
- ret = -1;
- goto fail_kni;
- }
-
- if (rte_kni_release(kni) < 0) {
- printf("fail to release kni\n");
- return -1;
- }
- test_kni_ctx = NULL;
-
- /* test of releasing a released kni device */
- if (rte_kni_release(kni) == 0) {
- printf("should not release a released kni device\n");
- return -1;
- }
-
- /* test of reusing memzone */
- kni = rte_kni_alloc(mp, &conf, &ops);
- if (!kni) {
- printf("fail to create kni\n");
- return -1;
- }
-
- /* Release the kni for following testing */
- if (rte_kni_release(kni) < 0) {
- printf("fail to release kni\n");
- return -1;
- }
-
- return ret;
-fail_kni:
- if (rte_kni_release(kni) < 0) {
- printf("fail to release kni\n");
- ret = -1;
- }
-
- return ret;
-}
-
-static int
-test_kni(void)
-{
- int ret = -1;
- uint8_t nb_ports, port_id;
- struct rte_kni *kni;
- struct rte_mempool *mp;
- struct rte_kni_conf conf;
- struct rte_eth_dev_info info;
- struct rte_kni_ops ops;
-
- /* Initialize KNI subsytem */
- rte_kni_init(KNI_TEST_MAX_PORTS);
-
- if (test_kni_allocate_lcores() < 0) {
- printf("No enough lcores for kni processing\n");
- return -1;
- }
-
- mp = test_kni_create_mempool();
- if (!mp) {
- printf("fail to create mempool for kni\n");
- return -1;
- }
-
- nb_ports = rte_eth_dev_count();
- if (nb_ports == 0) {
- printf("no supported nic port found\n");
- return -1;
- }
-
- /* configuring port 0 for the test is enough */
- port_id = 0;
- ret = rte_eth_dev_configure(port_id, 1, 1, &port_conf);
- if (ret < 0) {
- printf("fail to configure port %d\n", port_id);
- return -1;
- }
-
- ret = rte_eth_rx_queue_setup(port_id, 0, NB_RXD, SOCKET, &rx_conf, mp);
- if (ret < 0) {
- printf("fail to setup rx queue for port %d\n", port_id);
- return -1;
- }
-
- ret = rte_eth_tx_queue_setup(port_id, 0, NB_TXD, SOCKET, &tx_conf);
- if (ret < 0) {
- printf("fail to setup tx queue for port %d\n", port_id);
- return -1;
- }
-
- ret = rte_eth_dev_start(port_id);
- if (ret < 0) {
- printf("fail to start port %d\n", port_id);
- return -1;
- }
- rte_eth_promiscuous_enable(port_id);
-
- /* basic test of kni processing */
- ret = test_kni_processing(port_id, mp);
- if (ret < 0)
- goto fail;
-
- /* test of allocating KNI with NULL mempool pointer */
- memset(&info, 0, sizeof(info));
- memset(&conf, 0, sizeof(conf));
- memset(&ops, 0, sizeof(ops));
- rte_eth_dev_info_get(port_id, &info);
- conf.addr = info.pci_dev->addr;
- conf.id = info.pci_dev->id;
- conf.group_id = (uint16_t)port_id;
- conf.mbuf_size = MAX_PACKET_SZ;
-
- ops = kni_ops;
- ops.port_id = port_id;
- kni = rte_kni_alloc(NULL, &conf, &ops);
- if (kni) {
- ret = -1;
- printf("unexpectedly creates kni successfully with NULL "
- "mempool pointer\n");
- goto fail;
- }
-
- /* test of allocating KNI without configurations */
- kni = rte_kni_alloc(mp, NULL, NULL);
- if (kni) {
- ret = -1;
- printf("Unexpectedly allocate KNI device successfully "
- "without configurations\n");
- goto fail;
- }
-
- /* test of allocating KNI without a name */
- memset(&conf, 0, sizeof(conf));
- memset(&info, 0, sizeof(info));
- memset(&ops, 0, sizeof(ops));
- rte_eth_dev_info_get(port_id, &info);
- conf.addr = info.pci_dev->addr;
- conf.id = info.pci_dev->id;
- conf.group_id = (uint16_t)port_id;
- conf.mbuf_size = MAX_PACKET_SZ;
-
- ops = kni_ops;
- ops.port_id = port_id;
- kni = rte_kni_alloc(mp, &conf, &ops);
- if (kni) {
- ret = -1;
- printf("Unexpectedly allocate a KNI device successfully "
- "without a name\n");
- goto fail;
- }
-
- /* test of releasing NULL kni context */
- ret = rte_kni_release(NULL);
- if (ret == 0) {
- ret = -1;
- printf("unexpectedly release kni successfully\n");
- goto fail;
- }
-
- /* test of handling request on NULL device pointer */
- ret = rte_kni_handle_request(NULL);
- if (ret == 0) {
- ret = -1;
- printf("Unexpectedly handle request on NULL device pointer\n");
- goto fail;
- }
-
- /* test of getting KNI device with pointer to NULL */
- kni = rte_kni_get(NULL);
- if (kni) {
- ret = -1;
- printf("Unexpectedly get a KNI device with "
- "NULL name pointer\n");
- goto fail;
- }
-
- /* test of getting KNI device with an zero length name string */
- memset(&conf, 0, sizeof(conf));
- kni = rte_kni_get(conf.name);
- if (kni) {
- ret = -1;
- printf("Unexpectedly get a KNI device with "
- "zero length name string\n");
- goto fail;
- }
-
- /* test of getting KNI device with an invalid string name */
- memset(&conf, 0, sizeof(conf));
- snprintf(conf.name, sizeof(conf.name), "testing");
- kni = rte_kni_get(conf.name);
- if (kni) {
- ret = -1;
- printf("Unexpectedly get a KNI device with "
- "a never used name string\n");
- goto fail;
- }
- ret = 0;
-
-fail:
- rte_eth_dev_stop(port_id);
-
- return ret;
-}
-
-REGISTER_TEST_COMMAND(kni_autotest, test_kni);
git.droids-corp.org / dpdk.git / blobdiff