# The PCI base class for NETWORK devices
NETWORK_BASE_CLASS = "02"
+CRYPTO_BASE_CLASS = "0b"
# global dict ethernet devices present. Dictionary indexed by PCI address.
# Each device within this is itself a dictionary of device properties
Display usage information and quit
-s, --status:
- Print the current status of all known network interfaces.
+ Print the current status of all known network and crypto devices.
For each device, it displays the PCI domain, bus, slot and function,
along with a text description of the device. Depending upon whether the
device is being used by a kernel driver, the igb_uio driver, or no
Unbind a device (Equivalent to \"-b none\")
--force:
- By default, devices which are used by Linux - as indicated by having
+ By default, network devices which are used by Linux - as indicated by having
routes in the routing table - cannot be modified. Using the --force
flag overrides this behavior, allowing active links to be forcibly
unbound.
stderr=stderr).communicate()[0]
-def find_module(mod):
- '''find the .ko file for kernel module named mod.
- Searches the $RTE_SDK/$RTE_TARGET directory, the kernel
- modules directory and finally under the parent directory of
- the script '''
- # check $RTE_SDK/$RTE_TARGET directory
- if 'RTE_SDK' in os.environ and 'RTE_TARGET' in os.environ:
- path = "%s/%s/kmod/%s.ko" % (os.environ['RTE_SDK'],
- os.environ['RTE_TARGET'], mod)
- if exists(path):
- return path
-
- # check using depmod
- try:
- depmod_out = check_output(["modinfo", "-n", mod],
- stderr=subprocess.STDOUT).lower()
- if "error" not in depmod_out:
- path = depmod_out.strip()
- if exists(path):
- return path
- except: # if modinfo can't find module, it fails, so continue
- pass
-
- # check for a copy based off current path
- tools_dir = dirname(abspath(sys.argv[0]))
- if (tools_dir.endswith("tools")):
- base_dir = dirname(tools_dir)
- find_out = check_output(["find", base_dir, "-name", mod + ".ko"])
- if len(find_out) > 0: # something matched
- path = find_out.splitlines()[0]
- if exists(path):
- return path
-
-
def check_modules():
'''Checks that igb_uio is loaded'''
global dpdk_drivers
# special case for vfio_pci (module is named vfio-pci,
# but its .ko is named vfio_pci)
- sysfs_mods = map(lambda a:
- a if a != 'vfio_pci' else 'vfio-pci', sysfs_mods)
+ sysfs_mods = [a if a != 'vfio_pci' else 'vfio-pci' for a in sysfs_mods]
for mod in mods:
if mod["Name"] in sysfs_mods:
devices[d]["Module_str"] = ",".join(modules)
+def get_crypto_details():
+ '''This function populates the "devices" dictionary. The keys used are
+ the pci addresses (domain:bus:slot.func). The values are themselves
+ dictionaries - one for each NIC.'''
+ global devices
+ global dpdk_drivers
+
+ # clear any old data
+ # devices = {}
+ # first loop through and read details for all devices
+ # request machine readable format, with numeric IDs
+ dev = {}
+ dev_lines = check_output(["lspci", "-Dvmmn"]).splitlines()
+ for dev_line in dev_lines:
+ if (len(dev_line) == 0):
+ if (dev["Class"][0:2] == CRYPTO_BASE_CLASS):
+ # convert device and vendor ids to numbers, then add to global
+ dev["Vendor"] = int(dev["Vendor"], 16)
+ dev["Device"] = int(dev["Device"], 16)
+ # use dict to make copy of dev
+ devices[dev["Slot"]] = dict(dev)
+ else:
+ name, value = dev_line.decode().split("\t", 1)
+ dev[name.rstrip(":")] = value
+
+ # based on the basic info, get extended text details
+ for d in devices.keys():
+ if devices[d]["Class"][0:2] != CRYPTO_BASE_CLASS:
+ continue
+
+ # get additional info and add it to existing data
+ devices[d] = devices[d].copy()
+ devices[d].update(get_pci_device_details(d).items())
+
+ # add igb_uio to list of supporting modules if needed
+ if "Module_str" in devices[d]:
+ for driver in dpdk_drivers:
+ if driver not in devices[d]["Module_str"]:
+ devices[d]["Module_str"] = \
+ devices[d]["Module_str"] + ",%s" % driver
+ else:
+ devices[d]["Module_str"] = ",".join(dpdk_drivers)
+
+ # make sure the driver and module strings do not have any duplicates
+ if has_driver(d):
+ modules = devices[d]["Module_str"].split(",")
+ if devices[d]["Driver_str"] in modules:
+ modules.remove(devices[d]["Driver_str"])
+ devices[d]["Module_str"] = ",".join(modules)
+
+
def dev_id_from_dev_name(dev_name):
'''Take a device "name" - a string passed in by user to identify a NIC
device, and determine the device id - i.e. the domain:bus:slot.func - for
dpdk_drv = []
no_drv = []
- # split our list of devices into the three categories above
+ # split our list of network devices into the three categories above
for d in devices.keys():
- if not has_driver(d):
- no_drv.append(devices[d])
- continue
- if devices[d]["Driver_str"] in dpdk_drivers:
- dpdk_drv.append(devices[d])
- else:
- kernel_drv.append(devices[d])
+ if (NETWORK_BASE_CLASS in devices[d]["Class"]):
+ if not has_driver(d):
+ no_drv.append(devices[d])
+ continue
+ if devices[d]["Driver_str"] in dpdk_drivers:
+ dpdk_drv.append(devices[d])
+ else:
+ kernel_drv.append(devices[d])
# print each category separately, so we can clearly see what's used by DPDK
display_devices("Network devices using DPDK-compatible driver", dpdk_drv,
"unused=%(Module_str)s %(Active)s")
display_devices("Other network devices", no_drv, "unused=%(Module_str)s")
+ # split our list of crypto devices into the three categories above
+ kernel_drv = []
+ dpdk_drv = []
+ no_drv = []
+
+ for d in devices.keys():
+ if (CRYPTO_BASE_CLASS in devices[d]["Class"]):
+ if not has_driver(d):
+ no_drv.append(devices[d])
+ continue
+ if devices[d]["Driver_str"] in dpdk_drivers:
+ dpdk_drv.append(devices[d])
+ else:
+ kernel_drv.append(devices[d])
+
+ display_devices("Crypto devices using DPDK-compatible driver", dpdk_drv,
+ "drv=%(Driver_str)s unused=%(Module_str)s")
+ display_devices("Crypto devices using kernel driver", kernel_drv,
+ "drv=%(Driver_str)s "
+ "unused=%(Module_str)s")
+ display_devices("Other crypto devices", no_drv, "unused=%(Module_str)s")
+
def parse_args():
'''Parses the command-line arguments given by the user and takes the
if status_flag:
if b_flag is not None:
get_nic_details() # refresh if we have changed anything
+ get_crypto_details() # refresh if we have changed anything
show_status()
parse_args()
check_modules()
get_nic_details()
+ get_crypto_details()
do_arg_actions()
if __name__ == "__main__":
Code Review / deb_dpdk.git / blobdiff