def test_modify_qp(self):
"""
Queries a QP after calling modify(). Verifies that its properties are
as expected.
"""
for ctx, attr, attr_ex in self.devices:
with PD(ctx) as pd:
with CQ(ctx, 100, None, None, 0) as cq:
is_ex = random.choice([True, False])
if is_ex:
qia = get_qp_init_attr_ex(cq, pd, [e.IBV_QPT_UD], attr,
attr_ex)
else:
qia = get_qp_init_attr(cq, [e.IBV_QPT_UD], attr)
qp = QP(ctx, qia) if is_ex \
else QP(pd, qia)
qa = QPAttr()
qa.qkey = 0x123
qp.to_init(qa)
attr, iattr = qp.query(e.IBV_QP_QKEY)
assert attr.qkey == qa.qkey
qp.to_rtr(qa)
qa.sq_psn = 0x45
qp.to_rts(qa)
attr, iattr = qp.query(e.IBV_QP_SQ_PSN)
assert attr.sq_psn == qa.sq_psn
qa.qp_state = e.IBV_QPS_RESET
qp.modify(qa, e.IBV_QP_STATE)
assert qp.qp_state == e.IBV_QPS_RESET
def test_modify_qp(self):
"""
Queries a QP after calling modify(). Verifies that its properties are
as expected.
"""
for ctx, attr, attr_ex in self.devices:
with PD(ctx) as pd:
with CQ(ctx, 100, None, None, 0) as cq:
# Extended QP
qia = get_qp_init_attr_ex(cq, pd, attr, attr_ex,
e.IBV_QPT_UD)
try:
qp = QP(ctx, qia)
except PyverbsRDMAError as ex:
if ex.error_code == errno.EOPNOTSUPP:
raise unittest.SkipTest(
'Create QP with extended attrs is not supported'
)
raise ex
qa = QPAttr()
qa.qkey = 0x123
qp.to_init(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_QKEY)
assert qp_attr.qkey == qa.qkey, 'Extended QP, QKey is not as expected'
qp.to_rtr(qa)
qa.sq_psn = 0x45
qp.to_rts(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_SQ_PSN)
assert qp_attr.sq_psn == qa.sq_psn, 'Extended QP, SQ PSN is not as expected'
qa.qp_state = e.IBV_QPS_RESET
qp.modify(qa, e.IBV_QP_STATE)
assert qp.qp_state == e.IBV_QPS_RESET, 'Extended QP, QP state is not as expected'
# Legacy QP
qia = get_qp_init_attr(cq, attr)
qp = QP(pd, qia)
qa = QPAttr()
qa.qkey = 0x123
qp.to_init(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_QKEY)
assert qp_attr.qkey == qa.qkey, 'Legacy QP, QKey is not as expected'
qp.to_rtr(qa)
qa.sq_psn = 0x45
qp.to_rts(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_SQ_PSN)
assert qp_attr.sq_psn == qa.sq_psn, 'Legacy QP, SQ PSN is not as expected'
qa.qp_state = e.IBV_QPS_RESET
qp.modify(qa, e.IBV_QP_STATE)
assert qp.qp_state == e.IBV_QPS_RESET, 'Legacy QP, QP state is not as expected'
def test_modify_qp(self):
"""
Queries a QP after calling modify(). Verifies that its properties are
as expected.
"""
for ctx, attr, attr_ex in self.devices:
with PD(ctx) as pd:
with CQ(ctx, 100, None, None, 0) as cq:
# Extended QP
qia = get_qp_init_attr_ex(cq, pd, attr, attr_ex,
e.IBV_QPT_UD)
qp = QP(ctx, qia)
qa = QPAttr()
qa.qkey = 0x123
qp.to_init(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_QKEY)
assert qp_attr.qkey == qa.qkey, 'Extended QP, QKey is not as expected'
qp.to_rtr(qa)
qa.sq_psn = 0x45
qp.to_rts(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_SQ_PSN)
assert qp_attr.sq_psn == qa.sq_psn, 'Extended QP, SQ PSN is not as expected'
qa.qp_state = e.IBV_QPS_RESET
qp.modify(qa, e.IBV_QP_STATE)
assert qp.qp_state == e.IBV_QPS_RESET, 'Extended QP, QP state is not as expected'
# Legacy QP
qia = get_qp_init_attr(cq, attr)
qp = QP(pd, qia)
qa = QPAttr()
qa.qkey = 0x123
qp.to_init(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_QKEY)
assert qp_attr.qkey == qa.qkey, 'Legacy QP, QKey is not as expected'
qp.to_rtr(qa)
qa.sq_psn = 0x45
qp.to_rts(qa)
qp_attr, qp_iattr = qp.query(e.IBV_QP_SQ_PSN)
assert qp_attr.sq_psn == qa.sq_psn, 'Legacy QP, SQ PSN is not as expected'
qa.qp_state = e.IBV_QPS_RESET
qp.modify(qa, e.IBV_QP_STATE)
assert qp.qp_state == e.IBV_QPS_RESET, 'Legacy QP, QP state is not as expected'
class CMResources(abc.ABC):
"""
CMResources class is an abstract base class which contains basic resources
for RDMA CM communication.
"""
def __init__(self, addr=None, passive=None, **kwargs):
"""
:param addr: Local address to bind to.
:param passive: Indicate if this CM is the passive CM.
:param kwargs: Arguments:
* *port* (str)
Port number of the address
* *with_ext_qp* (bool)
If set, an external RC QP will be created and used by RDMACM
* *port_space* (str)
If set, indicates the CMIDs port space
"""
self.qp_init_attr = None
self.passive = passive
self.with_ext_qp = kwargs.get('with_ext_qp', False)
self.port = kwargs.get('port') if kwargs.get('port') else '7471'
self.port_space = kwargs.get('port_space', ce.RDMA_PS_TCP)
self.remote_operation = kwargs.get('remote_op')
self.qp_type = qp_type_per_ps[self.port_space]
self.qp_init_attr = QPInitAttr(qp_type=self.qp_type, cap=QPCap())
self.connected = False
# When passive side (server) listens to incoming connection requests,
# for each new request it creates a new cmid which is used to establish
# the connection with the remote side
self.child_id = None
self.msg_size = 1024
self.num_msgs = 10
self.channel = None
self.cq = None
self.qp = None
self.mr = None
self.remote_qpn = None
self.ud_params = None
if self.passive:
self.ai = AddrInfo(src=addr,
src_service=self.port,
port_space=self.port_space,
flags=ce.RAI_PASSIVE)
else:
self.ai = AddrInfo(src=addr,
dst=addr,
dst_service=self.port,
port_space=self.port_space)
def create_mr(self):
cmid = self.child_id if self.passive else self.cmid
mr_remote_function = {
None: cmid.reg_msgs,
'read': cmid.reg_read,
'write': cmid.reg_write
}
self.mr = mr_remote_function[self.remote_operation](self.msg_size +
GRH_SIZE)
def create_event_channel(self):
self.channel = CMEventChannel()
def create_qp_init_attr(self, rcq=None, scq=None):
return QPInitAttr(qp_type=self.qp_type,
rcq=rcq,
scq=scq,
cap=QPCap(max_recv_wr=1))
def create_conn_param(self, qp_num=0):
if self.with_ext_qp:
qp_num = self.qp.qp_num
return ConnParam(qp_num=qp_num)
def set_ud_params(self, cm_event):
if self.port_space == ce.RDMA_PS_UDP:
self.ud_params = UDParam(cm_event)
def my_qp_number(self):
if self.with_ext_qp:
return self.qp.qp_num
else:
cm = self.child_id if self.passive else self.cmid
return cm.qpn
def create_qp(self):
"""
Create an rdmacm QP. If self.with_ext_qp is set, then an external CQ and
RC QP will be created and set in self.cq and self.qp
respectively.
"""
cmid = self.child_id if self.passive else self.cmid
if not self.with_ext_qp:
cmid.create_qp(self.create_qp_init_attr())
else:
self.cq = CQ(cmid.context, self.num_msgs, None, None, 0)
init_attr = self.create_qp_init_attr(rcq=self.cq, scq=self.cq)
self.qp = QP(cmid.pd, init_attr, QPAttr())
def modify_ext_qp_to_rts(self):
cmid = self.child_id if self.passive else self.cmid
attr, mask = cmid.init_qp_attr(e.IBV_QPS_INIT)
self.qp.modify(attr, mask)
attr, mask = cmid.init_qp_attr(e.IBV_QPS_RTR)
self.qp.modify(attr, mask)
attr, mask = cmid.init_qp_attr(e.IBV_QPS_RTS)
self.qp.modify(attr, mask)
@abc.abstractmethod
def create_child_id(self, cm_event=None):
pass
class CMResources:
"""
CMResources class is a base aggregator object which contains basic
resources for RDMA CM communication.
"""
def __init__(self, **kwargs):
"""
:param kwargs: Arguments:
* *src* (str)
Local address to bind to (for passive side)
* *dst* (str)
Destination address to connect (for active side)
* *port* (str)
Port number of the address
* *is_async* (bool)
A flag which indicates if its asynchronous RDMACM
* *with_ext_qp* (bool)
If set, an external RC QP will be created and used by RDMACM
"""
src = kwargs.get('src')
dst = kwargs.get('dst')
self.is_server = True if dst is None else False
self.qp_init_attr = None
self.is_async = kwargs.get('is_async', False)
self.with_ext_qp = kwargs.get('with_ext_qp', False)
self.connected = False
# When passive side (server) listens to incoming connection requests,
# for each new request it creates a new cmid which is used to establish
# the connection with the remote side
self.child_id = None
self.msg_size = 1024
self.num_msgs = 100
self.channel = None
self.cq = None
self.qp = None
self.port = kwargs.get('port') if kwargs.get('port') else '7471'
self.mr = None
if self.is_server:
self.ai = AddrInfo(src, None, self.port, ce.RDMA_PS_TCP,
ce.RAI_PASSIVE)
else:
self.ai = AddrInfo(src, dst, self.port, ce.RDMA_PS_TCP)
if self.is_async:
self.create_event_channel()
self.cmid = CMID(creator=self.channel)
else:
self.cmid = CMID(creator=self.ai,
qp_init_attr=self.create_qp_init_attr())
def create_mr(self):
if self.is_server:
self.mr = self.child_id.reg_msgs(self.msg_size)
else:
self.mr = self.cmid.reg_msgs(self.msg_size)
def create_event_channel(self):
self.channel = CMEventChannel()
@staticmethod
def create_qp_init_attr(rcq=None, scq=None):
return QPInitAttr(qp_type=e.IBV_QPT_RC,
rcq=rcq,
scq=scq,
cap=QPCap(max_recv_wr=1))
@staticmethod
def create_conn_param(qp_num=0):
return ConnParam(qp_num=qp_num)
def create_child_id(self, cm_event=None):
if not self.is_server:
raise PyverbsUserError(
'create_child_id can be used only in passive side')
if self.is_async:
self.child_id = CMID(creator=cm_event, listen_id=self.cmid)
else:
self.child_id = self.cmid.get_request()
def create_qp(self):
"""
Create a rdmacm QP. If self.with_ext_qp is set, then an external CQ and
RC QP will be created and set in self.cq and self.qp
respectively.
"""
cmid = self.child_id if self.is_server else self.cmid
if not self.with_ext_qp:
cmid.create_qp(self.create_qp_init_attr())
else:
self.cq = CQ(cmid.context, self.num_msgs, None, None, 0)
init_attr = self.create_qp_init_attr(rcq=self.cq, scq=self.cq)
self.qp = QP(cmid.pd, init_attr, QPAttr())
def modify_ext_qp_to_rts(self):
cmid = self.child_id if self.is_server else self.cmid
attr, mask = cmid.init_qp_attr(e.IBV_QPS_INIT)
self.qp.modify(attr, mask)
attr, mask = cmid.init_qp_attr(e.IBV_QPS_RTR)
self.qp.modify(attr, mask)
attr, mask = cmid.init_qp_attr(e.IBV_QPS_RTS)
self.qp.modify(attr, mask)
