def _create_mr_devx(self, rdma_device, buf_size):
"""This method create mkey and memory buffer using devx (part of ofed driver).
"""
mlx5dv_attr = Mlx5DVContextAttr()
self.ctx = Mlx5Context(mlx5dv_attr, name=rdma_device)
self.my_pd = PD(self.ctx)
self.dv_pd = Mlx5DvObj(dve.MLX5DV_OBJ_PD, pd=self.my_pd).dvpd
self.umem = self._create_umem(self.ctx, buf_size)
self.mkey_ctx = SwMkc(umr_en=0,
lr=1,
lw=1,
access_mode_1_0=0x1,
pd=self.dv_pd.pdn,
start_addr=self.umem.umem_addr,
len=buf_size)
mkey_in = CreateMkeyIn(sw_mkc=self.mkey_ctx,
mkey_umem_id=self.umem.umem_id,
mkey_umem_valid=1)
self.mkey_obj = Mlx5DevxObj(self.ctx, mkey_in,
len(CreateMkeyOut()))
mkey_out = CreateMkeyOut(self.mkey_obj.out_view)
if mkey_out.status:
raise PyverbsRDMAError(
"Failed to create mkey with syndrome {0}".format(
mkey_out.syndrome))
mkey_index = mkey_out.mkey_index
self.lkey = mkey_index << 8
def func_wrapper(instance):
try:
ctx = Mlx5Context(Mlx5DVContextAttr(), instance.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 context is not supported')
# Query NIC Flow Table capabilities
cmd_in = struct.pack('!HIH8s', MLX5_CMD_OP_QUERY_HCA_CAP, 0,
MLX5_CMD_MOD_NIC_FLOW_TABLE_CAP << 1 | 0x1,
bytes(8))
try:
cmd_out = Mlx5Context.devx_general_cmd(
ctx, cmd_in, MLX5_CMD_OP_QUERY_HCA_CAP_OUT_LEN)
except PyverbsRDMAError as ex:
if ex.error_code in [errno.EOPNOTSUPP, errno.EPROTONOSUPPORT]:
raise unittest.SkipTest(
'DevX general command is not supported')
raise ex
cmd_view = memoryview(cmd_out)
status = cmd_view[0]
if status:
raise PyverbsRDMAError(
'Query NIC Flow Table CAPs failed with status'
f' ({status})')
# Verify that both NIC RX and TX support reformat actions by checking
# the following PRM fields: encap_general_header,
# log_max_packet_reformat, and reformat (for both RX and TX).
if not (cmd_view[20] & 0x80 and cmd_view[21] & 0x1f
and cmd_view[80] & 0x1 and cmd_view[272] & 0x1):
raise unittest.SkipTest('NIC flow table does not support reformat')
return func(instance)
def create_context(self):
mlx5dv_attr = Mlx5DVContextAttr()
try:
self.ctx = Mlx5Context(mlx5dv_attr, name=self.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 context is not supported')
def create_context(self):
try:
attr = Mlx5DVContextAttr(dve.MLX5DV_CONTEXT_FLAGS_DEVX)
self.ctx = Mlx5Context(attr, self.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 DevX context is not supported')
def __init__(self, dev_name):
try:
mlx5dv_attr = Mlx5DVContextAttr(e.MLX5DV_CONTEXT_FLAGS_DEVX)
self.ctx = Mlx5Context(mlx5dv_attr, dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest('Could not open mlx5 context ({})'.format(
str(ex)))
except PyverbsRDMAError:
raise unittest.SkipTest(
'Opening mlx5 DevX context is not supported')
self.pps = []
def create_context(self):
mlx5dv_attr = Mlx5DVContextAttr()
try:
self.ctx = Mlx5Context(mlx5dv_attr, name=self.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 context is not supported')
if self.requested_dev_cap:
if not self.ctx.query_mlx5_device().flags & self.requested_dev_cap:
miss_caps = context_flags_to_str(self.requested_dev_cap)
raise unittest.SkipTest(f'Device caps doesn\'t support {miss_caps}')
def check_crypto_caps(dev_name):
"""
Check that this device support crypto actions.
:param dev_name: The device name.
"""
mlx5dv_attr = Mlx5DVContextAttr()
ctx = Mlx5Context(mlx5dv_attr, name=dev_name)
crypto_caps = ctx.query_mlx5_device().crypto_caps
failed_selftests = crypto_caps['failed_selftests']
if failed_selftests:
raise unittest.SkipTest(f'The device crypto selftest failed ({failed_selftests})')
if not dve.MLX5DV_CRYPTO_ENGINES_CAP_AES_XTS & crypto_caps['crypto_engines']:
raise unittest.SkipTest('The device crypto engines does not support AES')
def test_dma_memcpy_large_data_bad_flow(self):
"""
Bad flow test, testing DMA memcpy with data larger than the maximum
allowed size, according to the HCA capabilities.
:return: None
"""
try:
ctx = Mlx5Context(Mlx5DVContextAttr(), name=self.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 context is not supported')
max_size = ctx.query_mlx5_device(
dve.MLX5DV_CONTEXT_MASK_WR_MEMCPY_LENGTH).max_wr_memcpy_length
max_size = max_size if max_size else 1024
with self.assertRaises(PyverbsRDMAError):
self.dma_memcpy(max_size + 1)
def func_wrapper(instance):
try:
ctx = Mlx5Context(Mlx5DVContextAttr(), instance.dev_name)
except PyverbsUserError as ex:
raise unittest.SkipTest(f'Could not open mlx5 context ({ex})')
except PyverbsRDMAError:
raise unittest.SkipTest('Opening mlx5 context is not supported')
# Query NIC Flow Table capabilities
cmd_in = struct.pack('!HIH8s', MLX5_CMD_OP_QUERY_HCA_CAP, 0,
MLX5_CMD_MOD_NIC_FLOW_TABLE_CAP << 1 | 0x1,
bytes(8))
cmd_out = Mlx5Context.devx_general_cmd(
ctx, cmd_in, MLX5_CMD_OP_QUERY_HCA_CAP_OUT_LEN)
cmd_view = memoryview(cmd_out)
status = cmd_view[0]
if status:
raise PyverbsRDMAError(
'Query NIC Flow Table CAPs failed with status'
f' ({status})')
# Verify that both NIC RX and TX support reformat actions
if not (cmd_view[80] & 0x1 and cmd_view[272] & 0x1):
raise unittest.SkipTest('NIC flow table does not support reformat')
return func(instance)
