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