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test/kni: check module dependency

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Check the prerequisites to run the test
1.checked whether the rte_kni module is loaded, if not fail testcase
2.checked whether the rte_kni module is loaded with loop back mode,
  if not skip packet forwarding testcase and log
3.Disabled the test in freebsd as test is not supported

Fixes: 5233e5924a ("app/test: update kni")
Cc: stable@dpdk.org

Signed-off-by: Naga Suresh Somarowthu <naga.sureshx.somarowthu@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Naga Suresh Somarowthu 2018-09-14 14:57:02 +01:00 committed by Thomas Monjalon
parent 85fea26693
commit ee1caebc4d
1 changed files with 38 additions and 11 deletions
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49
test/test/test_kni.c
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@ -7,10 +7,11 @@
#include <unistd.h>
#include <string.h>
#include <sys/wait.h>
#include <dirent.h>
#include "test.h"
#ifndef RTE_LIBRTE_KNI
#if !defined(RTE_EXEC_ENV_LINUXAPP) || !defined(RTE_LIBRTE_KNI)
static int
test_kni(void)
@ -40,6 +41,8 @@ test_kni(void)
#define IFCONFIG "/sbin/ifconfig "
#define TEST_KNI_PORT "test_kni_port"
#define KNI_MODULE_PATH "/sys/module/rte_kni"
#define KNI_MODULE_PARAM_LO KNI_MODULE_PATH"/parameters/lo_mode"
#define KNI_TEST_MAX_PORTS 4
/* The threshold number of mbufs to be transmitted or received. */
#define KNI_NUM_MBUF_THRESHOLD 100
@ -530,7 +533,7 @@ static int
test_kni(void)
{
int ret = -1;
uint16_t nb_ports, port_id;
uint16_t port_id;
struct rte_kni *kni;
struct rte_mempool *mp;
struct rte_kni_conf conf;
@ -538,6 +541,20 @@ test_kni(void)
struct rte_kni_ops ops;
const struct rte_pci_device *pci_dev;
const struct rte_bus *bus;
FILE *fd;
DIR *dir;
char buf[16];
dir = opendir(KNI_MODULE_PATH);
if (!dir) {
if (errno == ENOENT) {
printf("Cannot run UT due to missing rte_kni module\n");
return -1;
}
printf("opendir: %s", strerror(errno));
return -1;
}
closedir(dir);
/* Initialize KNI subsytem */
rte_kni_init(KNI_TEST_MAX_PORTS);
@ -553,12 +570,6 @@ test_kni(void)
return -1;
}
nb_ports = rte_eth_dev_count_avail();
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);
@ -587,9 +598,25 @@ test_kni(void)
rte_eth_promiscuous_enable(port_id);
/* basic test of kni processing */
ret = test_kni_processing(port_id, mp);
if (ret < 0)
goto fail;
fd = fopen(KNI_MODULE_PARAM_LO, "r");
if (fd == NULL) {
printf("fopen: %s", strerror(errno));
return -1;
}
memset(&buf, 0, sizeof(buf));
if (fgets(buf, sizeof(buf), fd)) {
if (!strncmp(buf, "lo_mode_fifo", strlen("lo_mode_fifo")) ||
!strncmp(buf, "lo_mode_fifo_skb",
strlen("lo_mode_fifo_skb"))) {
ret = test_kni_processing(port_id, mp);
if (ret < 0) {
fclose(fd);
goto fail;
}
} else
printf("test_kni_processing skipped because of missing rte_kni module lo_mode argument\n");
}
fclose(fd);
/* test of allocating KNI with NULL mempool pointer */
memset(&info, 0, sizeof(info));