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xemu/tests/virtio-blk-test.c
Marc Marí 1053587c3f libqos: Added EVENT_IDX support 
Added avail_event and NO_NOTIFY check before notifying.
Added used_event setting.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08 11:12:43 +01:00

659 lines
19 KiB
C
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/*
* QTest testcase for VirtIO Block Device
*
* Copyright (c) 2014 SUSE LINUX Products GmbH
* Copyright (c) 2014 Marc Marí
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include <glib.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include "libqtest.h"
#include "libqos/virtio.h"
#include "libqos/virtio-pci.h"
#include "libqos/pci-pc.h"
#include "libqos/malloc.h"
#include "libqos/malloc-pc.h"
#include "qemu/bswap.h"
#define QVIRTIO_BLK_F_BARRIER 0x00000001
#define QVIRTIO_BLK_F_SIZE_MAX 0x00000002
#define QVIRTIO_BLK_F_SEG_MAX 0x00000004
#define QVIRTIO_BLK_F_GEOMETRY 0x00000010
#define QVIRTIO_BLK_F_RO 0x00000020
#define QVIRTIO_BLK_F_BLK_SIZE 0x00000040
#define QVIRTIO_BLK_F_SCSI 0x00000080
#define QVIRTIO_BLK_F_WCE 0x00000200
#define QVIRTIO_BLK_F_TOPOLOGY 0x00000400
#define QVIRTIO_BLK_F_CONFIG_WCE 0x00000800
#define QVIRTIO_BLK_T_IN 0
#define QVIRTIO_BLK_T_OUT 1
#define QVIRTIO_BLK_T_SCSI_CMD 2
#define QVIRTIO_BLK_T_SCSI_CMD_OUT 3
#define QVIRTIO_BLK_T_FLUSH 4
#define QVIRTIO_BLK_T_FLUSH_OUT 5
#define QVIRTIO_BLK_T_GET_ID 8
#define TEST_IMAGE_SIZE (64 * 1024 * 1024)
#define QVIRTIO_BLK_TIMEOUT 100
#define PCI_SLOT 0x04
#define PCI_FN 0x00
typedef struct QVirtioBlkReq {
uint32_t type;
uint32_t ioprio;
uint64_t sector;
char *data;
uint8_t status;
} QVirtioBlkReq;
static QPCIBus *test_start(void)
{
char cmdline[100];
char tmp_path[] = "/tmp/qtest.XXXXXX";
int fd, ret;
/* Create a temporary raw image */
fd = mkstemp(tmp_path);
g_assert_cmpint(fd, >=, 0);
ret = ftruncate(fd, TEST_IMAGE_SIZE);
g_assert_cmpint(ret, ==, 0);
close(fd);
snprintf(cmdline, 100, "-drive if=none,id=drive0,file=%s "
"-device virtio-blk-pci,drive=drive0,addr=%x.%x",
tmp_path, PCI_SLOT, PCI_FN);
qtest_start(cmdline);
unlink(tmp_path);
return qpci_init_pc();
}
static void test_end(void)
{
qtest_end();
}
static QVirtioPCIDevice *virtio_blk_init(QPCIBus *bus)
{
QVirtioPCIDevice *dev;
dev = qvirtio_pci_device_find(bus, QVIRTIO_BLK_DEVICE_ID);
g_assert(dev != NULL);
g_assert_cmphex(dev->vdev.device_type, ==, QVIRTIO_BLK_DEVICE_ID);
g_assert_cmphex(dev->pdev->devfn, ==, ((PCI_SLOT << 3) | PCI_FN));
qvirtio_pci_device_enable(dev);
qvirtio_reset(&qvirtio_pci, &dev->vdev);
qvirtio_set_acknowledge(&qvirtio_pci, &dev->vdev);
qvirtio_set_driver(&qvirtio_pci, &dev->vdev);
return dev;
}
static inline void virtio_blk_fix_request(QVirtioBlkReq *req)
{
#ifdef HOST_WORDS_BIGENDIAN
bool host_endian = true;
#else
bool host_endian = false;
#endif
if (qtest_big_endian() != host_endian) {
req->type = bswap32(req->type);
req->ioprio = bswap32(req->ioprio);
req->sector = bswap64(req->sector);
}
}
static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioBlkReq *req,
uint64_t data_size)
{
uint64_t addr;
uint8_t status = 0xFF;
g_assert_cmpuint(data_size % 512, ==, 0);
addr = guest_alloc(alloc, sizeof(*req) + data_size);
virtio_blk_fix_request(req);
memwrite(addr, req, 16);
memwrite(addr + 16, req->data, data_size);
memwrite(addr + 16 + data_size, &status, sizeof(status));
return addr;
}
static void pci_basic(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
void *addr;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint32_t free_head;
uint8_t status;
char *data;
bus = test_start();
dev = virtio_blk_init(bus);
/* MSI-X is not enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
QVIRTIO_F_RING_INDIRECT_DESC | QVIRTIO_F_RING_EVENT_IDX |
QVIRTIO_BLK_F_SCSI);
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
alloc = pc_alloc_init();
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
/* Write and read with 2 descriptor layout */
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
/* Write and read with 3 descriptor layout */
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vqpci->vq.desc);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
static void pci_indirect(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
QVRingIndirectDesc *indirect;
void *addr;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint32_t free_head;
uint8_t status;
char *data;
bus = test_start();
dev = virtio_blk_init(bus);
/* MSI-X is not enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
g_assert_cmphex(features & QVIRTIO_F_RING_INDIRECT_DESC, !=, 0);
features = features & ~(QVIRTIO_F_BAD_FEATURE | QVIRTIO_F_RING_EVENT_IDX |
QVIRTIO_BLK_F_SCSI);
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
alloc = pc_alloc_init();
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2);
qvring_indirect_desc_add(indirect, req_addr, 528, false);
qvring_indirect_desc_add(indirect, req_addr + 528, 1, true);
free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
g_free(indirect);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2);
qvring_indirect_desc_add(indirect, req_addr, 16, false);
qvring_indirect_desc_add(indirect, req_addr + 16, 513, true);
free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
g_free(indirect);
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vqpci->vq.desc);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
static void pci_config(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
int n_size = TEST_IMAGE_SIZE / 2;
void *addr;
uint64_t capacity;
bus = test_start();
dev = virtio_blk_init(bus);
/* MSI-X is not enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
g_assert(qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev,
QVIRTIO_BLK_TIMEOUT));
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, n_size / 512);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
static void pci_msix(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
int n_size = TEST_IMAGE_SIZE / 2;
void *addr;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint32_t free_head;
uint8_t status;
char *data;
bus = test_start();
alloc = pc_alloc_init();
dev = virtio_blk_init(bus);
qpci_msix_enable(dev->pdev);
qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0);
/* MSI-X is enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
QVIRTIO_F_RING_INDIRECT_DESC |
QVIRTIO_F_RING_EVENT_IDX | QVIRTIO_BLK_F_SCSI);
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
g_assert(qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev,
QVIRTIO_BLK_TIMEOUT));
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, n_size / 512);
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, (uint64_t)vqpci->vq.desc);
qpci_msix_disable(dev->pdev);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
static void pci_idx(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
void *addr;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint32_t free_head;
uint8_t status;
char *data;
bus = test_start();
alloc = pc_alloc_init();
dev = virtio_blk_init(bus);
qpci_msix_enable(dev->pdev);
qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0);
/* MSI-X is enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
QVIRTIO_F_RING_INDIRECT_DESC |
QVIRTIO_F_NOTIFY_ON_EMPTY | QVIRTIO_BLK_F_SCSI);
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
/* Notify after processing the third request */
qvirtqueue_set_used_event(&vqpci->vq, 2);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
/* No notification expected */
g_assert(!qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vqpci->vq.desc);
qpci_msix_disable(dev->pdev);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
int main(int argc, char **argv)
{
int ret;
g_test_init(&argc, &argv, NULL);
g_test_add_func("/virtio/blk/pci/basic", pci_basic);
g_test_add_func("/virtio/blk/pci/indirect", pci_indirect);
g_test_add_func("/virtio/blk/pci/config", pci_config);
g_test_add_func("/virtio/blk/pci/msix", pci_msix);
g_test_add_func("/virtio/blk/pci/idx", pci_idx);
ret = g_test_run();
return ret;
}
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