def set_device_rate(self, pci_slot, rate_type, rate_kbps):
"""Set device rate: rate (max_tx_rate), min_tx_rate
@param pci_slot: Virtual Function address
@param rate_type: device rate name type. Could be 'rate' and
'min_tx_rate'.
@param rate_kbps: device rate in kbps
"""
vf_index = self._get_vf_index(pci_slot)
#NOTE(ralonsoh): ip link sets rate in Mbps therefore we need to convert
#the rate_kbps value from kbps to Mbps.
#Zero means to disable the rate so the lowest rate available is 1Mbps.
#Floating numbers are not allowed
if rate_kbps > 0 and rate_kbps < 1000:
rate_mbps = 1
else:
rate_mbps = utils.round_val(rate_kbps / 1000.0)
log_dict = {
'rate_mbps': rate_mbps,
'rate_kbps': rate_kbps,
'vf_index': vf_index,
'rate_type': rate_type
}
if rate_kbps % 1000 != 0:
LOG.debug(
"'%(rate_type)s' for SR-IOV ports is counted in Mbps; "
"setting %(rate_mbps)s Mbps limit for port %(vf_index)s "
"instead of %(rate_kbps)s kbps", log_dict)
else:
LOG.debug("Setting %(rate_mbps)s Mbps limit for port %(vf_index)s",
log_dict)
return self.pci_dev_wrapper.set_vf_rate(vf_index, rate_type, rate_mbps)
def test_round_val_ok(self):
for expected, value in ((0, 0),
(0, 0.1),
(1, 0.5),
(1, 1.49),
(2, 1.5)):
self.assertEqual(expected, utils.round_val(value))
def set_device_max_rate(self, pci_slot, max_kbps):
"""Set device max rate.
@param pci_slot: Virtual Function address
@param max_kbps: device max rate in kbps
"""
vf_index = self._get_vf_index(pci_slot)
#(Note): ip link set max rate in Mbps therefore
#we need to convert the max_kbps to Mbps.
#Zero means to disable the rate so the lowest rate
#available is 1Mbps. Floating numbers are not allowed
if max_kbps > 0 and max_kbps < 1000:
max_mbps = 1
else:
max_mbps = utils.round_val(max_kbps / 1000.0)
log_dict = {
'max_rate': max_mbps,
'max_kbps': max_kbps,
'vf_index': vf_index
}
if max_kbps % 1000 != 0:
LOG.debug(
"Maximum rate for SR-IOV ports is counted in Mbps; "
"setting %(max_rate)s Mbps limit for port %(vf_index)s "
"instead of %(max_kbps)s kbps", log_dict)
else:
LOG.debug("Setting %(max_rate)s Mbps limit for port %(vf_index)s",
log_dict)
return self.pci_dev_wrapper.set_vf_max_rate(vf_index, max_mbps)
def test_round_val_ok(self):
for expected, value in ((0, 0),
(0, 0.1),
(1, 0.5),
(1, 1.49),
(2, 1.5)):
self.assertEqual(expected, utils.round_val(value))
def set_device_max_rate(self, pci_slot, max_kbps):
"""Set device max rate.
@param pci_slot: Virtual Function address
@param max_kbps: device max rate in kbps
"""
vf_index = self._get_vf_index(pci_slot)
# (Note): ip link set max rate in Mbps therefore
# we need to convert the max_kbps to Mbps.
# Zero means to disable the rate so the lowest rate
# available is 1Mbps. Floating numbers are not allowed
if max_kbps > 0 and max_kbps < 1000:
max_mbps = 1
else:
max_mbps = utils.round_val(max_kbps / 1000.0)
log_dict = {"max_rate": max_mbps, "max_kbps": max_kbps, "vf_index": vf_index}
if max_kbps % 1000 != 0:
LOG.debug(
"Maximum rate for SR-IOV ports is counted in Mbps; "
"setting %(max_rate)s Mbps limit for port %(vf_index)s "
"instead of %(max_kbps)s kbps",
log_dict,
)
else:
LOG.debug("Setting %(max_rate)s Mbps limit for port %(vf_index)s", log_dict)
return self.pci_dev_wrapper.set_vf_max_rate(vf_index, max_mbps)
def set_device_rate(self, pci_slot, rate_type, rate_kbps):
"""Set device rate: rate (max_tx_rate), min_tx_rate
@param pci_slot: Virtual Function address
@param rate_type: device rate name type. Could be 'rate' and
'min_tx_rate'.
@param rate_kbps: device rate in kbps
"""
vf_index = self._get_vf_index(pci_slot)
#NOTE(ralonsoh): ip link sets rate in Mbps therefore we need to convert
#the rate_kbps value from kbps to Mbps.
#Zero means to disable the rate so the lowest rate available is 1Mbps.
#Floating numbers are not allowed
if rate_kbps > 0 and rate_kbps < 1000:
rate_mbps = 1
else:
rate_mbps = utils.round_val(rate_kbps / 1000.0)
log_dict = {
'rate_mbps': rate_mbps,
'rate_kbps': rate_kbps,
'vf_index': vf_index,
'rate_type': rate_type
}
if rate_kbps % 1000 != 0:
LOG.debug("'%(rate_type)s' for SR-IOV ports is counted in Mbps; "
"setting %(rate_mbps)s Mbps limit for port %(vf_index)s "
"instead of %(rate_kbps)s kbps",
log_dict)
else:
LOG.debug("Setting %(rate_mbps)s Mbps limit for port %(vf_index)s",
log_dict)
return self.pci_dev_wrapper.set_vf_rate(vf_index, rate_type, rate_mbps)
