2 # SPDX-License-Identifier: BSD-3-Clause
3 # Copyright(c) 2010-2014 Intel Corporation
11 from os.path import exists, abspath, dirname, basename
12 from os.path import join as path_join
14 # The PCI base class for all devices
15 network_class = {'Class': '02', 'Vendor': None, 'Device': None,
16 'SVendor': None, 'SDevice': None}
17 acceleration_class = {'Class': '12', 'Vendor': None, 'Device': None,
18 'SVendor': None, 'SDevice': None}
19 ifpga_class = {'Class': '12', 'Vendor': '8086', 'Device': '0b30',
20 'SVendor': None, 'SDevice': None}
21 encryption_class = {'Class': '10', 'Vendor': None, 'Device': None,
22 'SVendor': None, 'SDevice': None}
23 intel_processor_class = {'Class': '0b', 'Vendor': '8086', 'Device': None,
24 'SVendor': None, 'SDevice': None}
25 cavium_sso = {'Class': '08', 'Vendor': '177d', 'Device': 'a04b,a04d',
26 'SVendor': None, 'SDevice': None}
27 cavium_fpa = {'Class': '08', 'Vendor': '177d', 'Device': 'a053',
28 'SVendor': None, 'SDevice': None}
29 cavium_pkx = {'Class': '08', 'Vendor': '177d', 'Device': 'a0dd,a049',
30 'SVendor': None, 'SDevice': None}
31 cavium_tim = {'Class': '08', 'Vendor': '177d', 'Device': 'a051',
32 'SVendor': None, 'SDevice': None}
33 cavium_zip = {'Class': '12', 'Vendor': '177d', 'Device': 'a037',
34 'SVendor': None, 'SDevice': None}
35 avp_vnic = {'Class': '05', 'Vendor': '1af4', 'Device': '1110',
36 'SVendor': None, 'SDevice': None}
38 octeontx2_sso = {'Class': '08', 'Vendor': '177d', 'Device': 'a0f9,a0fa',
39 'SVendor': None, 'SDevice': None}
40 octeontx2_npa = {'Class': '08', 'Vendor': '177d', 'Device': 'a0fb,a0fc',
41 'SVendor': None, 'SDevice': None}
42 octeontx2_dma = {'Class': '08', 'Vendor': '177d', 'Device': 'a081',
43 'SVendor': None, 'SDevice': None}
44 octeontx2_ree = {'Class': '08', 'Vendor': '177d', 'Device': 'a0f4',
45 'SVendor': None, 'SDevice': None}
47 intel_ioat_bdw = {'Class': '08', 'Vendor': '8086', 'Device': '6f20,6f21,6f22,6f23,6f24,6f25,6f26,6f27,6f2e,6f2f',
48 'SVendor': None, 'SDevice': None}
49 intel_ioat_skx = {'Class': '08', 'Vendor': '8086', 'Device': '2021',
50 'SVendor': None, 'SDevice': None}
51 intel_ioat_icx = {'Class': '08', 'Vendor': '8086', 'Device': '0b00',
52 'SVendor': None, 'SDevice': None}
53 intel_idxd_spr = {'Class': '08', 'Vendor': '8086', 'Device': '0b25',
54 'SVendor': None, 'SDevice': None}
55 intel_ntb_skx = {'Class': '06', 'Vendor': '8086', 'Device': '201c',
56 'SVendor': None, 'SDevice': None}
57 intel_ntb_icx = {'Class': '06', 'Vendor': '8086', 'Device': '347e',
58 'SVendor': None, 'SDevice': None}
60 network_devices = [network_class, cavium_pkx, avp_vnic, ifpga_class]
61 baseband_devices = [acceleration_class]
62 crypto_devices = [encryption_class, intel_processor_class]
63 eventdev_devices = [cavium_sso, cavium_tim, octeontx2_sso]
64 mempool_devices = [cavium_fpa, octeontx2_npa]
65 compress_devices = [cavium_zip]
66 regex_devices = [octeontx2_ree]
67 misc_devices = [intel_ioat_bdw, intel_ioat_skx, intel_ioat_icx, intel_idxd_spr,
68 intel_ntb_skx, intel_ntb_icx,
71 # global dict ethernet devices present. Dictionary indexed by PCI address.
72 # Each device within this is itself a dictionary of device properties
74 # list of supported DPDK drivers
75 dpdk_drivers = ["igb_uio", "vfio-pci", "uio_pci_generic"]
76 # list of currently loaded kernel modules
79 # command-line arg flags
87 '''Print usage information for the program'''
88 argv0 = basename(sys.argv[0])
93 %(argv0)s [options] DEVICE1 DEVICE2 ....
95 where DEVICE1, DEVICE2 etc, are specified via PCI "domain:bus:slot.func" syntax
96 or "bus:slot.func" syntax. For devices bound to Linux kernel drivers, they may
97 also be referred to by Linux interface name e.g. eth0, eth1, em0, em1, etc.
98 If devices are specified using PCI <domain:>bus:device:func format, then
99 shell wildcards and ranges may be used, e.g. 80:04.*, 80:04.[0-3]
103 Display usage information and quit
106 Print the current status of all known network, crypto, event
108 For each device, it displays the PCI domain, bus, slot and function,
109 along with a text description of the device. Depending upon whether the
110 device is being used by a kernel driver, the igb_uio driver, or no
111 driver, other relevant information will be displayed:
112 * the Linux interface name e.g. if=eth0
113 * the driver being used e.g. drv=igb_uio
114 * any suitable drivers not currently using that device
116 NOTE: if this flag is passed along with a bind/unbind option, the
117 status display will always occur after the other operations have taken
121 Print the status of given device group. Supported device groups are:
122 "net", "baseband", "crypto", "event", "mempool" and "compress"
124 -b driver, --bind=driver:
125 Select the driver to use or \"none\" to unbind the device
128 Unbind a device (Equivalent to \"-b none\")
131 By default, network devices which are used by Linux - as indicated by
132 having routes in the routing table - cannot be modified. Using the
133 --force flag overrides this behavior, allowing active links to be
135 WARNING: This can lead to loss of network connection and should be used
141 To display current device status:
144 To display current network device status:
145 %(argv0)s --status-dev net
147 To bind eth1 from the current driver and move to use igb_uio
148 %(argv0)s --bind=igb_uio eth1
150 To unbind 0000:01:00.0 from using any driver
151 %(argv0)s -u 0000:01:00.0
153 To bind 0000:02:00.0 and 0000:02:00.1 to the ixgbe kernel driver
154 %(argv0)s -b ixgbe 02:00.0 02:00.1
156 To bind all functions on device 0000:02:00 to ixgbe kernel driver
157 %(argv0)s -b ixgbe 02:00.*
159 """ % locals()) # replace items from local variables
161 # check if a specific kernel module is loaded
162 def module_is_loaded(module):
163 global loaded_modules
165 if module == 'vfio_pci':
169 return module in loaded_modules
171 # Get list of sysfs modules (both built-in and dynamically loaded)
172 sysfs_path = '/sys/module/'
174 # Get the list of directories in sysfs_path
175 sysfs_mods = [m for m in os.listdir(sysfs_path)
176 if os.path.isdir(os.path.join(sysfs_path, m))]
178 # special case for vfio_pci (module is named vfio-pci,
179 # but its .ko is named vfio_pci)
180 sysfs_mods = [a if a != 'vfio_pci' else 'vfio-pci' for a in sysfs_mods]
182 loaded_modules = sysfs_mods
184 return module in sysfs_mods
188 '''Checks that igb_uio is loaded'''
191 # list of supported modules
192 mods = [{"Name": driver, "Found": False} for driver in dpdk_drivers]
194 # first check if module is loaded
196 if module_is_loaded(mod["Name"]):
199 # check if we have at least one loaded module
200 if True not in [mod["Found"] for mod in mods] and b_flag is not None:
201 print("Warning: no supported DPDK kernel modules are loaded", file=sys.stderr)
203 # change DPDK driver list to only contain drivers that are loaded
204 dpdk_drivers = [mod["Name"] for mod in mods if mod["Found"]]
207 def has_driver(dev_id):
208 '''return true if a device is assigned to a driver. False otherwise'''
209 return "Driver_str" in devices[dev_id]
212 def get_pci_device_details(dev_id, probe_lspci):
213 '''This function gets additional details for a PCI device'''
217 extra_info = subprocess.check_output(["lspci", "-vmmks", dev_id]).splitlines()
218 # parse lspci details
219 for line in extra_info:
222 name, value = line.decode("utf8").split("\t", 1)
223 name = name.strip(":") + "_str"
225 # check for a unix interface name
226 device["Interface"] = ""
227 for base, dirs, _ in os.walk("/sys/bus/pci/devices/%s/" % dev_id):
229 device["Interface"] = \
230 ",".join(os.listdir(os.path.join(base, "net")))
232 # check if a port is used for ssh connection
233 device["Ssh_if"] = False
234 device["Active"] = ""
239 '''This function clears any old data'''
243 def get_device_details(devices_type):
244 '''This function populates the "devices" dictionary. The keys used are
245 the pci addresses (domain:bus:slot.func). The values are themselves
246 dictionaries - one for each NIC.'''
250 # first loop through and read details for all devices
251 # request machine readable format, with numeric IDs and String
253 dev_lines = subprocess.check_output(["lspci", "-Dvmmnnk"]).splitlines()
254 for dev_line in dev_lines:
255 if len(dev_line) == 0:
256 if device_type_match(dev, devices_type):
257 # Replace "Driver" with "Driver_str" to have consistency of
258 # of dictionary key names
259 if "Driver" in dev.keys():
260 dev["Driver_str"] = dev.pop("Driver")
261 if "Module" in dev.keys():
262 dev["Module_str"] = dev.pop("Module")
263 # use dict to make copy of dev
264 devices[dev["Slot"]] = dict(dev)
265 # Clear previous device's data
268 name, value = dev_line.decode("utf8").split("\t", 1)
269 value_list = value.rsplit(' ', 1)
270 if len(value_list) > 1:
271 # String stored in <name>_str
272 dev[name.rstrip(":") + '_str'] = value_list[0]
274 dev[name.rstrip(":")] = value_list[len(value_list) - 1] \
275 .rstrip("]").lstrip("[")
277 if devices_type == network_devices:
278 # check what is the interface if any for an ssh connection if
279 # any to this host, so we can mark it later.
281 route = subprocess.check_output(["ip", "-o", "route"])
282 # filter out all lines for 169.254 routes
283 route = "\n".join(filter(lambda ln: not ln.startswith("169.254"),
284 route.decode().splitlines()))
285 rt_info = route.split()
286 for i in range(len(rt_info) - 1):
287 if rt_info[i] == "dev":
288 ssh_if.append(rt_info[i+1])
290 # based on the basic info, get extended text details
291 for d in devices.keys():
292 if not device_type_match(devices[d], devices_type):
295 # get additional info and add it to existing data
296 devices[d] = devices[d].copy()
297 # No need to probe lspci
298 devices[d].update(get_pci_device_details(d, False).items())
300 if devices_type == network_devices:
302 if _if in devices[d]["Interface"].split(","):
303 devices[d]["Ssh_if"] = True
304 devices[d]["Active"] = "*Active*"
307 # add igb_uio to list of supporting modules if needed
308 if "Module_str" in devices[d]:
309 for driver in dpdk_drivers:
310 if driver not in devices[d]["Module_str"]:
311 devices[d]["Module_str"] = \
312 devices[d]["Module_str"] + ",%s" % driver
314 devices[d]["Module_str"] = ",".join(dpdk_drivers)
316 # make sure the driver and module strings do not have any duplicates
318 modules = devices[d]["Module_str"].split(",")
319 if devices[d]["Driver_str"] in modules:
320 modules.remove(devices[d]["Driver_str"])
321 devices[d]["Module_str"] = ",".join(modules)
324 def device_type_match(dev, devices_type):
325 for i in range(len(devices_type)):
327 [x for x in devices_type[i].values() if x is not None])
329 if dev["Class"][0:2] == devices_type[i]["Class"]:
330 match_count = match_count + 1
331 for key in devices_type[i].keys():
332 if key != 'Class' and devices_type[i][key]:
333 value_list = devices_type[i][key].split(',')
334 for value in value_list:
335 if value.strip(' ') == dev[key]:
336 match_count = match_count + 1
337 # count must be the number of non None parameters to match
338 if match_count == param_count:
342 def dev_id_from_dev_name(dev_name):
343 '''Take a device "name" - a string passed in by user to identify a NIC
344 device, and determine the device id - i.e. the domain:bus:slot.func - for
345 it, which can then be used to index into the devices array'''
347 # check if it's already a suitable index
348 if dev_name in devices:
350 # check if it's an index just missing the domain part
351 elif "0000:" + dev_name in devices:
352 return "0000:" + dev_name
354 # check if it's an interface name, e.g. eth1
355 for d in devices.keys():
356 if dev_name in devices[d]["Interface"].split(","):
357 return devices[d]["Slot"]
358 # if nothing else matches - error
359 raise ValueError("Unknown device: %s. "
360 "Please specify device in \"bus:slot.func\" format" % dev_name)
363 def unbind_one(dev_id, force):
364 '''Unbind the device identified by "dev_id" from its current driver'''
365 dev = devices[dev_id]
366 if not has_driver(dev_id):
367 print("Notice: %s %s %s is not currently managed by any driver" %
368 (dev["Slot"], dev["Device_str"], dev["Interface"]), file=sys.stderr)
371 # prevent us disconnecting ourselves
372 if dev["Ssh_if"] and not force:
373 print("Warning: routing table indicates that interface %s is active. "
374 "Skipping unbind" % dev_id, file=sys.stderr)
377 # write to /sys to unbind
378 filename = "/sys/bus/pci/drivers/%s/unbind" % dev["Driver_str"]
380 f = open(filename, "a")
382 sys.exit("Error: unbind failed for %s - Cannot open %s" %
388 def bind_one(dev_id, driver, force):
389 '''Bind the device given by "dev_id" to the driver "driver". If the device
390 is already bound to a different driver, it will be unbound first'''
391 dev = devices[dev_id]
392 saved_driver = None # used to rollback any unbind in case of failure
394 # prevent disconnection of our ssh session
395 if dev["Ssh_if"] and not force:
396 print("Warning: routing table indicates that interface %s is active. "
397 "Not modifying" % dev_id, file=sys.stderr)
400 # unbind any existing drivers we don't want
401 if has_driver(dev_id):
402 if dev["Driver_str"] == driver:
403 print("Notice: %s already bound to driver %s, skipping" %
404 (dev_id, driver), file=sys.stderr)
407 saved_driver = dev["Driver_str"]
408 unbind_one(dev_id, force)
409 dev["Driver_str"] = "" # clear driver string
411 # For kernels >= 3.15 driver_override can be used to specify the driver
412 # for a device rather than relying on the driver to provide a positive
413 # match of the device. The existing process of looking up
414 # the vendor and device ID, adding them to the driver new_id,
415 # will erroneously bind other devices too which has the additional burden
416 # of unbinding those devices
417 if driver in dpdk_drivers:
418 filename = "/sys/bus/pci/devices/%s/driver_override" % dev_id
419 if os.path.exists(filename):
421 f = open(filename, "w")
423 print("Error: bind failed for %s - Cannot open %s"
424 % (dev_id, filename), file=sys.stderr)
427 f.write("%s" % driver)
430 print("Error: bind failed for %s - Cannot write driver %s to "
431 "PCI ID " % (dev_id, driver), file=sys.stderr)
433 # For kernels < 3.15 use new_id to add PCI id's to the driver
435 filename = "/sys/bus/pci/drivers/%s/new_id" % driver
437 f = open(filename, "w")
439 print("Error: bind failed for %s - Cannot open %s"
440 % (dev_id, filename), file=sys.stderr)
443 # Convert Device and Vendor Id to int to write to new_id
444 f.write("%04x %04x" % (int(dev["Vendor"],16),
445 int(dev["Device"], 16)))
448 print("Error: bind failed for %s - Cannot write new PCI ID to "
449 "driver %s" % (dev_id, driver), file=sys.stderr)
452 # do the bind by writing to /sys
453 filename = "/sys/bus/pci/drivers/%s/bind" % driver
455 f = open(filename, "a")
457 print("Error: bind failed for %s - Cannot open %s"
458 % (dev_id, filename), file=sys.stderr)
459 if saved_driver is not None: # restore any previous driver
460 bind_one(dev_id, saved_driver, force)
466 # for some reason, closing dev_id after adding a new PCI ID to new_id
467 # results in IOError. however, if the device was successfully bound,
468 # we don't care for any errors and can safely ignore IOError
469 tmp = get_pci_device_details(dev_id, True)
470 if "Driver_str" in tmp and tmp["Driver_str"] == driver:
472 print("Error: bind failed for %s - Cannot bind to driver %s"
473 % (dev_id, driver), file=sys.stderr)
474 if saved_driver is not None: # restore any previous driver
475 bind_one(dev_id, saved_driver, force)
478 # For kernels > 3.15 driver_override is used to bind a device to a driver.
479 # Before unbinding it, overwrite driver_override with empty string so that
480 # the device can be bound to any other driver
481 filename = "/sys/bus/pci/devices/%s/driver_override" % dev_id
482 if os.path.exists(filename):
484 f = open(filename, "w")
486 sys.exit("Error: unbind failed for %s - Cannot open %s"
487 % (dev_id, filename))
492 sys.exit("Error: unbind failed for %s - Cannot open %s"
493 % (dev_id, filename))
496 def unbind_all(dev_list, force=False):
497 """Unbind method, takes a list of device locations"""
499 if dev_list[0] == "dpdk":
500 for d in devices.keys():
501 if "Driver_str" in devices[d]:
502 if devices[d]["Driver_str"] in dpdk_drivers:
503 unbind_one(devices[d]["Slot"], force)
507 dev_list = map(dev_id_from_dev_name, dev_list)
508 except ValueError as ex:
516 def bind_all(dev_list, driver, force=False):
517 """Bind method, takes a list of device locations"""
520 # a common user error is to forget to specify the driver the devices need to
521 # be bound to. check if the driver is a valid device, and if it is, show
522 # a meaningful error.
524 dev_id_from_dev_name(driver)
525 # if we've made it this far, this means that the "driver" was a valid
526 # device string, so it's probably not a valid driver name.
527 sys.exit("Error: Driver '%s' does not look like a valid driver. " \
528 "Did you forget to specify the driver to bind devices to?" % driver)
530 # driver generated error - it's not a valid device ID, so all is well
533 # check if we're attempting to bind to a driver that isn't loaded
534 if not module_is_loaded(driver.replace('-','_')):
535 sys.exit("Error: Driver '%s' is not loaded." % driver)
538 dev_list = map(dev_id_from_dev_name, dev_list)
539 except ValueError as ex:
543 bind_one(d, driver, force)
545 # For kernels < 3.15 when binding devices to a generic driver
546 # (i.e. one that doesn't have a PCI ID table) using new_id, some devices
547 # that are not bound to any other driver could be bound even if no one has
548 # asked them to. hence, we check the list of drivers again, and see if
549 # some of the previously-unbound devices were erroneously bound.
550 if not os.path.exists("/sys/bus/pci/devices/%s/driver_override" % d):
551 for d in devices.keys():
552 # skip devices that were already bound or that we know should be bound
553 if "Driver_str" in devices[d] or d in dev_list:
556 # update information about this device
557 devices[d] = dict(devices[d].items() +
558 get_pci_device_details(d, True).items())
560 # check if updated information indicates that the device was bound
561 if "Driver_str" in devices[d]:
565 def display_devices(title, dev_list, extra_params=None):
566 '''Displays to the user the details of a list of devices given in
567 "dev_list". The "extra_params" parameter, if given, should contain a string
568 with %()s fields in it for replacement by the named fields in each
569 device's dictionary.'''
570 strings = [] # this holds the strings to print. We sort before printing
571 print("\n%s" % title)
572 print("="*len(title))
573 if len(dev_list) == 0:
574 strings.append("<none>")
577 if extra_params is not None:
578 strings.append("%s '%s %s' %s" % (dev["Slot"],
583 strings.append("%s '%s'" % (dev["Slot"], dev["Device_str"]))
584 # sort before printing, so that the entries appear in PCI order
586 print("\n".join(strings)) # print one per line
588 def show_device_status(devices_type, device_name, if_field=False):
594 # split our list of network devices into the three categories above
595 for d in devices.keys():
596 if device_type_match(devices[d], devices_type):
597 if not has_driver(d):
598 no_drv.append(devices[d])
600 if devices[d]["Driver_str"] in dpdk_drivers:
601 dpdk_drv.append(devices[d])
603 kernel_drv.append(devices[d])
605 n_devs = len(dpdk_drv) + len(kernel_drv) + len(no_drv)
607 # don't bother displaying anything if there are no devices
609 msg = "No '%s' devices detected" % device_name
612 print("".join('=' * len(msg)))
615 # print each category separately, so we can clearly see what's used by DPDK
616 if len(dpdk_drv) != 0:
617 display_devices("%s devices using DPDK-compatible driver" % device_name,
618 dpdk_drv, "drv=%(Driver_str)s unused=%(Module_str)s")
619 if len(kernel_drv) != 0:
622 if_text = "if=%(Interface)s "
623 display_devices("%s devices using kernel driver" % device_name, kernel_drv,
624 if_text + "drv=%(Driver_str)s "
625 "unused=%(Module_str)s %(Active)s")
627 display_devices("Other %s devices" % device_name, no_drv,
628 "unused=%(Module_str)s")
631 '''Function called when the script is passed the "--status" option.
632 Displays to the user what devices are bound to the igb_uio driver, the
633 kernel driver or to no driver'''
635 if status_dev == "net" or status_dev == "all":
636 show_device_status(network_devices, "Network", if_field=True)
638 if status_dev == "baseband" or status_dev == "all":
639 show_device_status(baseband_devices, "Baseband")
641 if status_dev == "crypto" or status_dev == "all":
642 show_device_status(crypto_devices, "Crypto")
644 if status_dev == "event" or status_dev == "all":
645 show_device_status(eventdev_devices, "Eventdev")
647 if status_dev == "mempool" or status_dev == "all":
648 show_device_status(mempool_devices, "Mempool")
650 if status_dev == "compress" or status_dev == "all":
651 show_device_status(compress_devices , "Compress")
653 if status_dev == "misc" or status_dev == "all":
654 show_device_status(misc_devices, "Misc (rawdev)")
656 if status_dev == "regex" or status_dev == "all":
657 show_device_status(regex_devices, "Regex")
661 '''Returns a list containing either:
662 * List of PCI B:D:F matching arg, using shell wildcards e.g. 80:04.*
663 * Only the passed arg if matching list is empty'''
664 sysfs_path = "/sys/bus/pci/devices"
665 for _glob in [arg, '0000:' + arg]:
666 paths = [basename(path) for path in glob(path_join(sysfs_path, _glob))]
673 '''Parses the command-line arguments given by the user and takes the
674 appropriate action for each'''
680 if len(sys.argv) <= 1:
685 opts, args = getopt.getopt(sys.argv[1:], "b:us",
686 ["help", "usage", "status", "status-dev=",
687 "force", "bind=", "unbind", ])
688 except getopt.GetoptError as error:
690 print("Run '%s --usage' for further information" % sys.argv[0])
693 for opt, arg in opts:
694 if opt == "--help" or opt == "--usage":
697 if opt == "--status-dev":
700 if opt == "--status" or opt == "-s":
705 if opt == "-b" or opt == "-u" or opt == "--bind" or opt == "--unbind":
706 if b_flag is not None:
707 sys.exit("Error: binding and unbinding are mutually exclusive")
708 if opt == "-u" or opt == "--unbind":
713 # resolve any PCI globs in the args
716 new_args.extend(pci_glob(arg))
719 def do_arg_actions():
720 '''do the actual action requested by the user'''
726 if b_flag is None and not status_flag:
727 print("Error: No action specified for devices. "
728 "Please give a -b or -u option", file=sys.stderr)
732 if b_flag is not None and len(args) == 0:
733 print("Error: No devices specified.", file=sys.stderr)
737 if b_flag == "none" or b_flag == "None":
738 unbind_all(args, force_flag)
739 elif b_flag is not None:
740 bind_all(args, b_flag, force_flag)
742 if b_flag is not None:
744 # refresh if we have changed anything
745 get_device_details(network_devices)
746 get_device_details(baseband_devices)
747 get_device_details(crypto_devices)
748 get_device_details(eventdev_devices)
749 get_device_details(mempool_devices)
750 get_device_details(compress_devices)
751 get_device_details(regex_devices)
752 get_device_details(misc_devices)
757 '''program main function'''
758 # check if lspci is installed, suppress any output
759 with open(os.devnull, 'w') as devnull:
760 ret = subprocess.call(['which', 'lspci'],
761 stdout=devnull, stderr=devnull)
763 sys.exit("'lspci' not found - please install 'pciutils'")
767 get_device_details(network_devices)
768 get_device_details(baseband_devices)
769 get_device_details(crypto_devices)
770 get_device_details(eventdev_devices)
771 get_device_details(mempool_devices)
772 get_device_details(compress_devices)
773 get_device_details(regex_devices)
774 get_device_details(misc_devices)
777 if __name__ == "__main__":