962973095c
In the KNI unit test, if all test cases passed, it should
return with 0. This patch fixes the issue of returning
wrong value.
Fixes: fc27caaafd
("kni: remove deprecated functions")
Signed-off-by: Marvin Liu <yong.liu@intel.com>
Signed-off-by: Helin Zhang <helin.zhang@intel.com>
641 lines
15 KiB
C
641 lines
15 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/wait.h>
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#include "test.h"
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#include <rte_string_fns.h>
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#include <rte_mempool.h>
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#include <rte_ethdev.h>
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#include <rte_cycles.h>
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#include <rte_kni.h>
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#define NB_MBUF 8192
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#define MAX_PACKET_SZ 2048
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#define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
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#define PKT_BURST_SZ 32
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#define MEMPOOL_CACHE_SZ PKT_BURST_SZ
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#define SOCKET 0
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#define NB_RXD 128
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#define NB_TXD 512
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#define KNI_TIMEOUT_MS 5000 /* ms */
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#define IFCONFIG "/sbin/ifconfig "
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#define TEST_KNI_PORT "test_kni_port"
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#define KNI_TEST_MAX_PORTS 4
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/* The threshold number of mbufs to be transmitted or received. */
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#define KNI_NUM_MBUF_THRESHOLD 100
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static int kni_pkt_mtu = 0;
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struct test_kni_stats {
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volatile uint64_t ingress;
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volatile uint64_t egress;
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};
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static const struct rte_eth_rxconf rx_conf = {
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.rx_thresh = {
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.pthresh = 8,
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.hthresh = 8,
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.wthresh = 4,
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},
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.rx_free_thresh = 0,
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};
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static const struct rte_eth_txconf tx_conf = {
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.tx_thresh = {
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.pthresh = 36,
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.hthresh = 0,
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.wthresh = 0,
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},
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.tx_free_thresh = 0,
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.tx_rs_thresh = 0,
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};
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static const struct rte_eth_conf port_conf = {
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.rxmode = {
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.header_split = 0,
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.hw_ip_checksum = 0,
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.hw_vlan_filter = 0,
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.jumbo_frame = 0,
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.hw_strip_crc = 0,
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},
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.txmode = {
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.mq_mode = ETH_DCB_NONE,
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},
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};
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static struct rte_kni_ops kni_ops = {
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.change_mtu = NULL,
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.config_network_if = NULL,
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};
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static unsigned lcore_master, lcore_ingress, lcore_egress;
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static struct rte_kni *test_kni_ctx;
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static struct test_kni_stats stats;
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static volatile uint32_t test_kni_processing_flag;
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static struct rte_mempool *
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test_kni_create_mempool(void)
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{
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struct rte_mempool * mp;
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mp = rte_mempool_lookup("kni_mempool");
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if (!mp)
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mp = rte_pktmbuf_pool_create("kni_mempool",
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NB_MBUF,
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MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ,
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SOCKET);
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return mp;
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}
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static struct rte_mempool *
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test_kni_lookup_mempool(void)
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{
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return rte_mempool_lookup("kni_mempool");
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}
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/* Callback for request of changing MTU */
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static int
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kni_change_mtu(uint8_t port_id, unsigned new_mtu)
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{
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printf("Change MTU of port %d to %u\n", port_id, new_mtu);
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kni_pkt_mtu = new_mtu;
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printf("Change MTU of port %d to %i successfully.\n",
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port_id, kni_pkt_mtu);
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return 0;
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}
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/**
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* This loop fully tests the basic functions of KNI. e.g. transmitting,
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* receiving to, from kernel space, and kernel requests.
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*
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* This is the loop to transmit/receive mbufs to/from kernel interface with
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* supported by KNI kernel module. The ingress lcore will allocate mbufs and
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* transmit them to kernel space; while the egress lcore will receive the mbufs
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* from kernel space and free them.
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* On the master lcore, several commands will be run to check handling the
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* kernel requests. And it will finally set the flag to exit the KNI
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* transmitting/receiving to/from the kernel space.
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*
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* Note: To support this testing, the KNI kernel module needs to be insmodded
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* in one of its loopback modes.
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*/
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static int
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test_kni_loop(__rte_unused void *arg)
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{
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int ret = 0;
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unsigned nb_rx, nb_tx, num, i;
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const unsigned lcore_id = rte_lcore_id();
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struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
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if (lcore_id == lcore_master) {
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rte_delay_ms(KNI_TIMEOUT_MS);
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/* tests of handling kernel request */
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if (system(IFCONFIG TEST_KNI_PORT" up") == -1)
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ret = -1;
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if (system(IFCONFIG TEST_KNI_PORT" mtu 1400") == -1)
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ret = -1;
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if (system(IFCONFIG TEST_KNI_PORT" down") == -1)
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ret = -1;
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rte_delay_ms(KNI_TIMEOUT_MS);
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test_kni_processing_flag = 1;
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} else if (lcore_id == lcore_ingress) {
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struct rte_mempool *mp = test_kni_lookup_mempool();
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if (mp == NULL)
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return -1;
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while (1) {
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if (test_kni_processing_flag)
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break;
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for (nb_rx = 0; nb_rx < PKT_BURST_SZ; nb_rx++) {
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pkts_burst[nb_rx] = rte_pktmbuf_alloc(mp);
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if (!pkts_burst[nb_rx])
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break;
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}
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num = rte_kni_tx_burst(test_kni_ctx, pkts_burst,
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nb_rx);
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stats.ingress += num;
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rte_kni_handle_request(test_kni_ctx);
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if (num < nb_rx) {
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for (i = num; i < nb_rx; i++) {
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rte_pktmbuf_free(pkts_burst[i]);
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}
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}
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rte_delay_ms(10);
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}
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} else if (lcore_id == lcore_egress) {
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while (1) {
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if (test_kni_processing_flag)
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break;
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num = rte_kni_rx_burst(test_kni_ctx, pkts_burst,
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PKT_BURST_SZ);
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stats.egress += num;
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for (nb_tx = 0; nb_tx < num; nb_tx++)
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rte_pktmbuf_free(pkts_burst[nb_tx]);
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rte_delay_ms(10);
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}
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}
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return ret;
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}
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static int
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test_kni_allocate_lcores(void)
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{
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unsigned i, count = 0;
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lcore_master = rte_get_master_lcore();
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printf("master lcore: %u\n", lcore_master);
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for (i = 0; i < RTE_MAX_LCORE; i++) {
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if (count >=2 )
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break;
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if (rte_lcore_is_enabled(i) && i != lcore_master) {
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count ++;
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if (count == 1)
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lcore_ingress = i;
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else if (count == 2)
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lcore_egress = i;
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}
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}
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printf("count: %u\n", count);
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return (count == 2 ? 0 : -1);
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}
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static int
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test_kni_register_handler_mp(void)
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{
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#define TEST_KNI_HANDLE_REQ_COUNT 10 /* 5s */
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#define TEST_KNI_HANDLE_REQ_INTERVAL 500 /* ms */
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#define TEST_KNI_MTU 1450
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#define TEST_KNI_MTU_STR " 1450"
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int pid;
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pid = fork();
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if (pid < 0) {
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printf("Failed to fork a process\n");
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return -1;
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} else if (pid == 0) {
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int i;
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struct rte_kni *kni = rte_kni_get(TEST_KNI_PORT);
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struct rte_kni_ops ops = {
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.change_mtu = kni_change_mtu,
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.config_network_if = NULL,
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};
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if (!kni) {
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printf("Failed to get KNI named %s\n", TEST_KNI_PORT);
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exit(-1);
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}
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kni_pkt_mtu = 0;
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/* Check with the invalid parameters */
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if (rte_kni_register_handlers(kni, NULL) == 0) {
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printf("Unexpectedly register successuflly "
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"with NULL ops pointer\n");
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exit(-1);
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}
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if (rte_kni_register_handlers(NULL, &ops) == 0) {
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printf("Unexpectedly register successfully "
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"to NULL KNI device pointer\n");
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exit(-1);
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}
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if (rte_kni_register_handlers(kni, &ops)) {
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printf("Fail to register ops\n");
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exit(-1);
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}
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/* Check registering again after it has been registered */
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if (rte_kni_register_handlers(kni, &ops) == 0) {
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printf("Unexpectedly register successfully after "
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"it has already been registered\n");
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exit(-1);
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}
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/**
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* Handle the request of setting MTU,
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* with registered handlers.
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*/
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for (i = 0; i < TEST_KNI_HANDLE_REQ_COUNT; i++) {
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rte_kni_handle_request(kni);
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if (kni_pkt_mtu == TEST_KNI_MTU)
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break;
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rte_delay_ms(TEST_KNI_HANDLE_REQ_INTERVAL);
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}
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if (i >= TEST_KNI_HANDLE_REQ_COUNT) {
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printf("MTU has not been set\n");
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exit(-1);
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}
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kni_pkt_mtu = 0;
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if (rte_kni_unregister_handlers(kni) < 0) {
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printf("Fail to unregister ops\n");
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exit(-1);
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}
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/* Check with invalid parameter */
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if (rte_kni_unregister_handlers(NULL) == 0) {
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exit(-1);
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}
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/**
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* Handle the request of setting MTU,
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* without registered handlers.
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*/
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for (i = 0; i < TEST_KNI_HANDLE_REQ_COUNT; i++) {
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rte_kni_handle_request(kni);
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if (kni_pkt_mtu != 0)
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break;
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rte_delay_ms(TEST_KNI_HANDLE_REQ_INTERVAL);
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}
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if (kni_pkt_mtu != 0) {
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printf("MTU shouldn't be set\n");
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exit(-1);
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}
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exit(0);
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} else {
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int p_ret, status;
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rte_delay_ms(1000);
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if (system(IFCONFIG TEST_KNI_PORT " mtu" TEST_KNI_MTU_STR)
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== -1)
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return -1;
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rte_delay_ms(1000);
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if (system(IFCONFIG TEST_KNI_PORT " mtu" TEST_KNI_MTU_STR)
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== -1)
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return -1;
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p_ret = wait(&status);
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if (!WIFEXITED(status)) {
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printf("Child process (%d) exit abnormally\n", p_ret);
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return -1;
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}
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if (WEXITSTATUS(status) != 0) {
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printf("Child process exit with failure\n");
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return -1;
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}
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}
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return 0;
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}
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static int
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test_kni_processing(uint8_t port_id, struct rte_mempool *mp)
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{
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int ret = 0;
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unsigned i;
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struct rte_kni *kni;
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struct rte_kni_conf conf;
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struct rte_eth_dev_info info;
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struct rte_kni_ops ops;
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if (!mp)
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return -1;
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memset(&conf, 0, sizeof(conf));
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memset(&info, 0, sizeof(info));
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memset(&ops, 0, sizeof(ops));
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rte_eth_dev_info_get(port_id, &info);
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conf.addr = info.pci_dev->addr;
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conf.id = info.pci_dev->id;
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snprintf(conf.name, sizeof(conf.name), TEST_KNI_PORT);
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/* core id 1 configured for kernel thread */
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conf.core_id = 1;
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conf.force_bind = 1;
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conf.mbuf_size = MAX_PACKET_SZ;
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conf.group_id = (uint16_t)port_id;
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ops = kni_ops;
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ops.port_id = port_id;
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/* basic test of kni processing */
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kni = rte_kni_alloc(mp, &conf, &ops);
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if (!kni) {
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printf("fail to create kni\n");
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return -1;
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}
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test_kni_ctx = kni;
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test_kni_processing_flag = 0;
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stats.ingress = 0;
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stats.egress = 0;
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/**
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* Check multiple processes support on
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* registerring/unregisterring handlers.
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*/
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if (test_kni_register_handler_mp() < 0) {
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printf("fail to check multiple process support\n");
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ret = -1;
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goto fail_kni;
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}
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rte_eal_mp_remote_launch(test_kni_loop, NULL, CALL_MASTER);
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RTE_LCORE_FOREACH_SLAVE(i) {
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if (rte_eal_wait_lcore(i) < 0) {
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ret = -1;
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goto fail_kni;
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}
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}
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/**
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* Check if the number of mbufs received from kernel space is equal
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* to that of transmitted to kernel space
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*/
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if (stats.ingress < KNI_NUM_MBUF_THRESHOLD ||
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stats.egress < KNI_NUM_MBUF_THRESHOLD) {
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printf("The ingress/egress number should not be "
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"less than %u\n", (unsigned)KNI_NUM_MBUF_THRESHOLD);
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ret = -1;
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goto fail_kni;
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}
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if (rte_kni_release(kni) < 0) {
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printf("fail to release kni\n");
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return -1;
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}
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test_kni_ctx = NULL;
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/* test of releasing a released kni device */
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if (rte_kni_release(kni) == 0) {
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printf("should not release a released kni device\n");
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return -1;
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}
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/* test of reusing memzone */
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kni = rte_kni_alloc(mp, &conf, &ops);
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if (!kni) {
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printf("fail to create kni\n");
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return -1;
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}
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/* Release the kni for following testing */
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if (rte_kni_release(kni) < 0) {
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printf("fail to release kni\n");
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return -1;
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}
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return ret;
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fail_kni:
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if (rte_kni_release(kni) < 0) {
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printf("fail to release kni\n");
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ret = -1;
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}
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return ret;
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}
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static int
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test_kni(void)
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{
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int ret = -1;
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uint8_t nb_ports, port_id;
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struct rte_kni *kni;
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struct rte_mempool *mp;
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struct rte_kni_conf conf;
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struct rte_eth_dev_info info;
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struct rte_kni_ops ops;
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/* Initialize KNI subsytem */
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rte_kni_init(KNI_TEST_MAX_PORTS);
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if (test_kni_allocate_lcores() < 0) {
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printf("No enough lcores for kni processing\n");
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return -1;
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}
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mp = test_kni_create_mempool();
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if (!mp) {
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printf("fail to create mempool for kni\n");
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return -1;
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}
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nb_ports = rte_eth_dev_count();
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if (nb_ports == 0) {
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printf("no supported nic port found\n");
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return -1;
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}
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/* configuring port 0 for the test is enough */
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port_id = 0;
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ret = rte_eth_dev_configure(port_id, 1, 1, &port_conf);
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if (ret < 0) {
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printf("fail to configure port %d\n", port_id);
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return -1;
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}
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ret = rte_eth_rx_queue_setup(port_id, 0, NB_RXD, SOCKET, &rx_conf, mp);
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if (ret < 0) {
|
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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;
|
|
}
|
|
|
|
static struct test_command kni_cmd = {
|
|
.command = "kni_autotest",
|
|
.callback = test_kni,
|
|
};
|
|
REGISTER_TEST_COMMAND(kni_cmd);
|