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// SPDX-License-Identifier: MIT
/*
* Copyright(c) 2023 Intel Corporation. All rights reserved.
*/
#include "drmtest.h"
#include "igt_core.h"
#include "igt_sriov_device.h"
IGT_TEST_DESCRIPTION("Basic tests for enabling SR-IOV Virtual Functions");
/**
* TEST: sriov_basic
* Category: Core
* Mega feature: SR-IOV
* Sub-category: VFs enabling
* Functionality: configure / enable VFs
* Description: Validate SR-IOV VFs enabling
*/
/**
* SUBTEST: enable-vfs-autoprobe-off
* Description:
* Verify VFs enabling without probing VF driver
*/
static void enable_vfs_autoprobe_off(int pf_fd, unsigned int num_vfs)
{
igt_debug("Testing %u VFs\n", num_vfs);
igt_require(igt_sriov_get_enabled_vfs(pf_fd) == 0);
igt_sriov_disable_driver_autoprobe(pf_fd);
igt_sriov_enable_vfs(pf_fd, num_vfs);
igt_assert_eq(num_vfs, igt_sriov_get_enabled_vfs(pf_fd));
igt_sriov_disable_vfs(pf_fd);
}
/**
* SUBTEST: enable-vfs-autoprobe-on
* Description:
* Verify VFs enabling and auto-probing VF driver
*/
static void enable_vfs_autoprobe_on(int pf_fd, unsigned int num_vfs)
{
bool err = false;
igt_debug("Testing %u VFs\n", num_vfs);
igt_require(igt_sriov_get_enabled_vfs(pf_fd) == 0);
igt_sriov_enable_driver_autoprobe(pf_fd);
igt_sriov_enable_vfs(pf_fd, num_vfs);
igt_assert_eq(num_vfs, igt_sriov_get_enabled_vfs(pf_fd));
for (int vf_num = 1; vf_num <= num_vfs; ++vf_num) {
if (!igt_sriov_is_vf_drm_driver_probed(pf_fd, vf_num)) {
igt_debug("VF%u probe failed\n", vf_num);
err = true;
}
}
igt_sriov_disable_vfs(pf_fd);
igt_assert(!err);
}
/**
* SUBTEST: enable-vfs-bind-unbind-each
* Description:
* Verify VFs enabling with binding and unbinding the driver one by one to each of them.
* Version includes dynamic subtests that allow specifying the number of enabled VFs as numvfs-N.
*
* SUBTEST: enable-vfs-bind-unbind-each-numvfs-all
* Description:
* Verify the enabling of all VFs and the sequential binding and unbinding of the driver to each one.
*/
static void enable_vfs_bind_unbind_each(int pf_fd, unsigned int num_vfs)
{
igt_debug("Testing %u VFs\n", num_vfs);
igt_require(igt_sriov_get_enabled_vfs(pf_fd) == 0);
igt_sriov_disable_driver_autoprobe(pf_fd);
igt_sriov_enable_vfs(pf_fd, num_vfs);
igt_sriov_enable_driver_autoprobe(pf_fd);
for (int i = 1; i <= num_vfs; i++) {
igt_assert(!igt_sriov_is_vf_drm_driver_probed(pf_fd, i));
igt_sriov_bind_vf_drm_driver(pf_fd, i);
igt_assert(igt_sriov_is_vf_drm_driver_probed(pf_fd, i));
igt_sriov_unbind_vf_drm_driver(pf_fd, i);
igt_assert(!igt_sriov_is_vf_drm_driver_probed(pf_fd, i));
}
igt_sriov_disable_vfs(pf_fd);
}
/**
* SUBTEST: bind-unbind-vf
* Description:
* Verify binding and unbinding the driver to specific VF
*/
static void bind_unbind_vf(int pf_fd, unsigned int vf_num)
{
igt_debug("Testing VF%u\n", vf_num);
igt_require(igt_sriov_get_enabled_vfs(pf_fd) == 0);
igt_sriov_disable_driver_autoprobe(pf_fd);
igt_sriov_enable_vfs(pf_fd, vf_num);
igt_sriov_enable_driver_autoprobe(pf_fd);
igt_assert(!igt_sriov_is_vf_drm_driver_probed(pf_fd, vf_num));
igt_sriov_bind_vf_drm_driver(pf_fd, vf_num);
igt_assert(igt_sriov_is_vf_drm_driver_probed(pf_fd, vf_num));
igt_sriov_unbind_vf_drm_driver(pf_fd, vf_num);
igt_assert(!igt_sriov_is_vf_drm_driver_probed(pf_fd, vf_num));
igt_sriov_disable_vfs(pf_fd);
}
igt_main
{
int pf_fd;
bool autoprobe;
igt_fixture {
pf_fd = drm_open_driver(DRIVER_ANY);
igt_require(igt_sriov_is_pf(pf_fd));
igt_require(igt_sriov_vfs_supported(pf_fd));
igt_require(igt_sriov_get_enabled_vfs(pf_fd) == 0);
autoprobe = igt_sriov_is_driver_autoprobe_enabled(pf_fd);
}
igt_describe("Verify VFs enabling without probing VF driver");
igt_subtest_with_dynamic("enable-vfs-autoprobe-off") {
for_each_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-%u", num_vfs) {
enable_vfs_autoprobe_off(pf_fd, num_vfs);
}
}
for_random_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-random") {
enable_vfs_autoprobe_off(pf_fd, num_vfs);
}
}
for_max_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-all") {
enable_vfs_autoprobe_off(pf_fd, num_vfs);
}
}
}
igt_describe("Verify VFs enabling and auto-probing VF driver");
igt_subtest_with_dynamic("enable-vfs-autoprobe-on") {
for_each_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-%u", num_vfs) {
enable_vfs_autoprobe_on(pf_fd, num_vfs);
}
}
for_random_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-random") {
enable_vfs_autoprobe_on(pf_fd, num_vfs);
}
}
for_max_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-all") {
enable_vfs_autoprobe_on(pf_fd, num_vfs);
}
}
}
igt_describe("Verify VFs enabling with binding and unbinding the driver one be one to each of them");
igt_subtest_with_dynamic("enable-vfs-bind-unbind-each") {
for_each_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-%u", num_vfs) {
enable_vfs_bind_unbind_each(pf_fd, num_vfs);
}
}
for_random_sriov_num_vfs(pf_fd, num_vfs) {
igt_dynamic_f("numvfs-random") {
enable_vfs_bind_unbind_each(pf_fd, num_vfs);
}
}
}
igt_describe("Verify the enabling of all VFs and the sequential binding and unbinding of the driver to each one");
igt_subtest("enable-vfs-bind-unbind-each-numvfs-all") {
for_max_sriov_num_vfs(pf_fd, num_vfs) {
enable_vfs_bind_unbind_each(pf_fd, num_vfs);
}
}
igt_describe("Test binds and unbinds the driver to specific VF");
igt_subtest_with_dynamic("bind-unbind-vf") {
for_each_sriov_vf(pf_fd, vf) {
igt_dynamic_f("vf-%u", vf) {
bind_unbind_vf(pf_fd, vf);
}
}
for_random_sriov_vf(pf_fd, vf) {
igt_dynamic_f("vf-random") {
bind_unbind_vf(pf_fd, vf);
}
}
for_last_sriov_vf(pf_fd, vf) {
igt_dynamic_f("vf-last") {
bind_unbind_vf(pf_fd, vf);
}
}
}
igt_fixture {
igt_sriov_disable_vfs(pf_fd);
/* abort to avoid execution of next tests with enabled VFs */
igt_abort_on_f(igt_sriov_get_enabled_vfs(pf_fd) > 0, "Failed to disable VF(s)");
autoprobe ? igt_sriov_enable_driver_autoprobe(pf_fd) :
igt_sriov_disable_driver_autoprobe(pf_fd);
igt_abort_on_f(autoprobe != igt_sriov_is_driver_autoprobe_enabled(pf_fd),
"Failed to restore sriov_drivers_autoprobe value\n");
close(pf_fd);
}
}
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