Merge pull request #2212 from YongxueHong/bug-1822055

block_scsi_generic_inquiry: New case that sg_inq virtio devices

qemu/tests/block_scsi_generic_inquiry.py

+import logging
+
+from avocado.utils import process
+
+from virttest import data_dir
+from virttest import env_process
+from virttest import utils_misc
+
+from virttest.iscsi import Iscsi
+from virttest.utils_disk import get_linux_disks
+
+
+def run(test, params, env):
+    """
+    Test to install the guest OS on the lvm device which is created
+    on an iSCSI target.
+    Steps:
+        1) Setup iSCSI initiator on local host.
+        2) Discovery and login the above iSCSI target.
+        3) Send sg_inq to get information on the host.
+        4) Boot guest with this lun as a block device as the second
+           disk, with scsi=on,format=raw,werror=stop,rerror=stop.
+        5) In the guest, sg_inq should show similar information in
+           step 3.
+        6) Logout iscsi server.
+        7) Check the disk info with sg_inq inside guest, should show
+           fail information.
+        8) Run dd on this disk, the guest should stop.
+
+    :param test:   QEMU test object.
+    :param params: Dictionary with the test parameters.
+    :param env:    Dictionary with test environment.
+    """
+    def fetch_sg_info(device, session=None):
+        cmd = params['cmd_sg_inq'] % device
+        if session:
+            return session.cmd_output(cmd)
+        return process.getoutput(cmd, 60, ignore_status=False)
+
+    iscsi = Iscsi.create_iSCSI(params, data_dir.get_data_dir())
+    try:
+        iscsi.login()
+        if not utils_misc.wait_for(lambda: iscsi.get_device_name(), 60):
+            test.error('Can not get the iSCSI device.')
+
+        cmd_get_disk_path = params['cmd_get_disk_path']
+        disk_path = process.system_output(cmd_get_disk_path, 60,
+                                          shell=True).decode()
+
+        host_sg_info = fetch_sg_info(disk_path)
+        logging.info('The scsi generic info from host: %s', host_sg_info)
+
+        image_data_tag = params['image_data_tag']
+        params['image_name_%s' % image_data_tag] = disk_path
+        params['image_size'] = params['emulated_image_size']
+        image_params = params.object_params(image_data_tag)
+        env_process.preprocess_image(test, image_params, image_data_tag)
+
+        params["start_vm"] = "yes"
+        env_process.preprocess_vm(test, params, env, params["main_vm"])
+        vm = env.get_vm(params["main_vm"])
+        vm.verify_alive()
+        session = vm.wait_for_login()
+
+        data_disk = '/dev/' + list(get_linux_disks(session).keys()).pop()
+        guest_sg_info = fetch_sg_info(data_disk, session)
+        logging.info('The scsi generic info from guest: %s', guest_sg_info)
+
+        for info in guest_sg_info.split():
+            if info not in host_sg_info:
+                test.fail('The guest scsi generic info is not similar to host.')
+
+        iscsi.logout()
+        if params['sg_fail_info'] not in fetch_sg_info(data_disk, session):
+            test.fail('No found the fail information after logout iscsi server.')
+
+        session.cmd_output(params['cmd_dd'] % data_disk)
+        vm_status_paused = params['vm_status_paused']
+        if not utils_misc.wait_for(
+                lambda: vm.monitor.verify_status(vm_status_paused), 120, step=3):
+            test.fail('The vm status is not %s.' % vm_status_paused)
+    finally:
+        iscsi.delete_target()

qemu/tests/cfg/block_scsi_generic_inquiry.cfg

+- block_scsi_generic_inquiry:
+    only virtio_blk
+    only Linux
+    only RHEL.7
+    no q35
+    type = block_scsi_generic_inquiry
+    virt_test_type = qemu
+    kill_vm = yes
+    start_vm = no
+    not_preprocess = yes
+    target = iqn.2020-04.com.redhat:kvm-qe
+    image_data_tag = stg
+    images += ' ${image_data_tag}'
+    drive_rerror_stg = stop
+    drive_werror_stg = stop
+    blk_extra_params_stg = "scsi=on,disable-legacy=off,disable-modern=on"
+    block_raw_name = ${image_data_tag}
+    emulated_image = images/${block_raw_name}
+    emulated_image_size = 1G
+    force_create_stg = no
+    image_format_stg = raw
+    image_raw_device_stg = yes
+    remove_image_stg = no
+    cmd_dd = "dd if=/dev/zero of=%s bs=10M count=1000 oflag=direct &"
+    cmd_get_disk_path = "ls /dev/disk/by-path/* | grep "${target}""
+    cmd_sg_inq = "sg_inq %s"
+    vm_status_paused = paused
+    sg_fail_info = 'Both SCSI INQUIRY and fetching ATA information failed'