qemu-patch-raspberry4/tests/virtio-scsi-test.c
David Gibson 246fc0fb66 libqos: Give qvirtio_config_read*() consistent semantics
The 'addr' parameter to qvirtio_config_read*() doesn't have a consistent
meaning: when using the virtio-pci versions, it's a full PCI space address,
but for virtio-mmio, it's an offset from the device's base mmio address.

This means that the callers need to do different things to calculate the
addresses in the two cases, which rather defeats the purpose of function
pointer backends.

All the current users of these functions are using them to retrieve
variables from the device specific portion of the virtio config space.
So, this patch alters the semantics to always be an offset into that
device specific config area.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
2016-10-28 09:38:27 +11:00

257 lines
7.7 KiB
C

/*
* QTest testcase for VirtIO SCSI
*
* Copyright (c) 2014 SUSE LINUX Products GmbH
* Copyright (c) 2015 Red Hat Inc.
*
* 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 "qemu/osdep.h"
#include "libqtest.h"
#include "block/scsi.h"
#include "libqos/libqos-pc.h"
#include "libqos/libqos-spapr.h"
#include "libqos/virtio.h"
#include "libqos/virtio-pci.h"
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_pci.h"
#include "standard-headers/linux/virtio_scsi.h"
#define PCI_SLOT 0x02
#define PCI_FN 0x00
#define QVIRTIO_SCSI_TIMEOUT_US (1 * 1000 * 1000)
#define MAX_NUM_QUEUES 64
typedef struct {
QVirtioDevice *dev;
QOSState *qs;
int num_queues;
QVirtQueue *vq[MAX_NUM_QUEUES + 2];
} QVirtIOSCSI;
static QOSState *qvirtio_scsi_start(const char *extra_opts)
{
const char *arch = qtest_get_arch();
const char *cmd = "-drive id=drv0,if=none,file=/dev/null,format=raw "
"-device virtio-scsi-pci,id=vs0 "
"-device scsi-hd,bus=vs0.0,drive=drv0 %s";
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
return qtest_pc_boot(cmd, extra_opts ? : "");
}
if (strcmp(arch, "ppc64") == 0) {
return qtest_spapr_boot(cmd, extra_opts ? : "");
}
g_printerr("virtio-scsi tests are only available on x86 or ppc64\n");
exit(EXIT_FAILURE);
}
static void qvirtio_scsi_stop(QOSState *qs)
{
qtest_shutdown(qs);
}
static void qvirtio_scsi_pci_free(QVirtIOSCSI *vs)
{
int i;
for (i = 0; i < vs->num_queues + 2; i++) {
qvirtqueue_cleanup(vs->dev->bus, vs->vq[i], vs->qs->alloc);
}
qvirtio_pci_device_disable(container_of(vs->dev, QVirtioPCIDevice, vdev));
g_free(vs->dev);
qvirtio_scsi_stop(vs->qs);
g_free(vs);
}
static uint64_t qvirtio_scsi_alloc(QVirtIOSCSI *vs, size_t alloc_size,
const void *data)
{
uint64_t addr;
addr = guest_alloc(vs->qs->alloc, alloc_size);
if (data) {
memwrite(addr, data, alloc_size);
}
return addr;
}
static uint8_t virtio_scsi_do_command(QVirtIOSCSI *vs, const uint8_t *cdb,
const uint8_t *data_in,
size_t data_in_len,
uint8_t *data_out, size_t data_out_len,
struct virtio_scsi_cmd_resp *resp_out)
{
QVirtQueue *vq;
struct virtio_scsi_cmd_req req = { { 0 } };
struct virtio_scsi_cmd_resp resp = { .response = 0xff, .status = 0xff };
uint64_t req_addr, resp_addr, data_in_addr = 0, data_out_addr = 0;
uint8_t response;
uint32_t free_head;
vq = vs->vq[2];
req.lun[0] = 1; /* Select LUN */
req.lun[1] = 1; /* Select target 1 */
memcpy(req.cdb, cdb, VIRTIO_SCSI_CDB_SIZE);
/* XXX: Fix endian if any multi-byte field in req/resp is used */
/* Add request header */
req_addr = qvirtio_scsi_alloc(vs, sizeof(req), &req);
free_head = qvirtqueue_add(vq, req_addr, sizeof(req), false, true);
if (data_out_len) {
data_out_addr = qvirtio_scsi_alloc(vs, data_out_len, data_out);
qvirtqueue_add(vq, data_out_addr, data_out_len, false, true);
}
/* Add response header */
resp_addr = qvirtio_scsi_alloc(vs, sizeof(resp), &resp);
qvirtqueue_add(vq, resp_addr, sizeof(resp), true, !!data_in_len);
if (data_in_len) {
data_in_addr = qvirtio_scsi_alloc(vs, data_in_len, data_in);
qvirtqueue_add(vq, data_in_addr, data_in_len, true, false);
}
qvirtqueue_kick(vs->dev, vq, free_head);
qvirtio_wait_queue_isr(vs->dev, vq, QVIRTIO_SCSI_TIMEOUT_US);
response = readb(resp_addr +
offsetof(struct virtio_scsi_cmd_resp, response));
if (resp_out) {
memread(resp_addr, resp_out, sizeof(*resp_out));
}
guest_free(vs->qs->alloc, req_addr);
guest_free(vs->qs->alloc, resp_addr);
guest_free(vs->qs->alloc, data_in_addr);
guest_free(vs->qs->alloc, data_out_addr);
return response;
}
static QVirtIOSCSI *qvirtio_scsi_pci_init(int slot)
{
const uint8_t test_unit_ready_cdb[VIRTIO_SCSI_CDB_SIZE] = {};
QVirtIOSCSI *vs;
QVirtioPCIDevice *dev;
struct virtio_scsi_cmd_resp resp;
int i;
vs = g_new0(QVirtIOSCSI, 1);
vs->qs = qvirtio_scsi_start("-drive file=blkdebug::null-co://,"
"if=none,id=dr1,format=raw,file.align=4k "
"-device scsi-disk,drive=dr1,lun=0,scsi-id=1");
dev = qvirtio_pci_device_find(vs->qs->pcibus, VIRTIO_ID_SCSI);
vs->dev = (QVirtioDevice *)dev;
g_assert(dev != NULL);
g_assert_cmphex(vs->dev->device_type, ==, VIRTIO_ID_SCSI);
qvirtio_pci_device_enable(dev);
qvirtio_reset(vs->dev);
qvirtio_set_acknowledge(vs->dev);
qvirtio_set_driver(vs->dev);
vs->num_queues = qvirtio_config_readl(vs->dev, 0);
g_assert_cmpint(vs->num_queues, <, MAX_NUM_QUEUES);
for (i = 0; i < vs->num_queues + 2; i++) {
vs->vq[i] = qvirtqueue_setup(vs->dev, vs->qs->alloc, i);
}
/* Clear the POWER ON OCCURRED unit attention */
g_assert_cmpint(virtio_scsi_do_command(vs, test_unit_ready_cdb,
NULL, 0, NULL, 0, &resp),
==, 0);
g_assert_cmpint(resp.status, ==, CHECK_CONDITION);
g_assert_cmpint(resp.sense[0], ==, 0x70); /* Fixed format sense buffer */
g_assert_cmpint(resp.sense[2], ==, UNIT_ATTENTION);
g_assert_cmpint(resp.sense[12], ==, 0x29); /* POWER ON */
g_assert_cmpint(resp.sense[13], ==, 0x00);
return vs;
}
/* Tests only initialization so far. TODO: Replace with functional tests */
static void pci_nop(void)
{
QOSState *qs;
qs = qvirtio_scsi_start(NULL);
qvirtio_scsi_stop(qs);
}
static void hotplug(void)
{
QDict *response;
QOSState *qs;
qs = qvirtio_scsi_start("-drive id=drv1,if=none,file=/dev/null,format=raw");
response = qmp("{\"execute\": \"device_add\","
" \"arguments\": {"
" \"driver\": \"scsi-hd\","
" \"id\": \"scsi-hd\","
" \"drive\": \"drv1\""
"}}");
g_assert(response);
g_assert(!qdict_haskey(response, "error"));
QDECREF(response);
response = qmp("{\"execute\": \"device_del\","
" \"arguments\": {"
" \"id\": \"scsi-hd\""
"}}");
g_assert(response);
g_assert(!qdict_haskey(response, "error"));
g_assert(qdict_haskey(response, "event"));
g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
QDECREF(response);
qvirtio_scsi_stop(qs);
}
/* Test WRITE SAME with the lba not aligned */
static void test_unaligned_write_same(void)
{
QVirtIOSCSI *vs;
uint8_t buf1[512] = { 0 };
uint8_t buf2[512] = { 1 };
const uint8_t write_same_cdb_1[VIRTIO_SCSI_CDB_SIZE] = {
0x41, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00
};
const uint8_t write_same_cdb_2[VIRTIO_SCSI_CDB_SIZE] = {
0x41, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x33, 0x00, 0x00
};
vs = qvirtio_scsi_pci_init(PCI_SLOT);
g_assert_cmphex(0, ==,
virtio_scsi_do_command(vs, write_same_cdb_1, NULL, 0, buf1, 512, NULL));
g_assert_cmphex(0, ==,
virtio_scsi_do_command(vs, write_same_cdb_2, NULL, 0, buf2, 512, NULL));
qvirtio_scsi_pci_free(vs);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_func("/virtio/scsi/pci/nop", pci_nop);
qtest_add_func("/virtio/scsi/pci/hotplug", hotplug);
qtest_add_func("/virtio/scsi/pci/scsi-disk/unaligned-write-same",
test_unaligned_write_same);
return g_test_run();
}