1#! /usr/bin/env python 2# SPDX-License-Identifier: BSD-3-Clause 3# Copyright(c) 2010-2014 Intel Corporation 4# 5 6import sys 7import os 8import getopt 9import subprocess 10from os.path import exists, abspath, dirname, basename 11 12# The PCI base class for all devices 13network_class = {'Class': '02', 'Vendor': None, 'Device': None, 14 'SVendor': None, 'SDevice': None} 15acceleration_class = {'Class': '12', 'Vendor': None, 'Device': None, 16 'SVendor': None, 'SDevice': None} 17ifpga_class = {'Class': '12', 'Vendor': '8086', 'Device': '0b30', 18 'SVendor': None, 'SDevice': None} 19encryption_class = {'Class': '10', 'Vendor': None, 'Device': None, 20 'SVendor': None, 'SDevice': None} 21intel_processor_class = {'Class': '0b', 'Vendor': '8086', 'Device': None, 22 'SVendor': None, 'SDevice': None} 23cavium_sso = {'Class': '08', 'Vendor': '177d', 'Device': 'a04b,a04d', 24 'SVendor': None, 'SDevice': None} 25cavium_fpa = {'Class': '08', 'Vendor': '177d', 'Device': 'a053', 26 'SVendor': None, 'SDevice': None} 27cavium_pkx = {'Class': '08', 'Vendor': '177d', 'Device': 'a0dd,a049', 28 'SVendor': None, 'SDevice': None} 29cavium_tim = {'Class': '08', 'Vendor': '177d', 'Device': 'a051', 30 'SVendor': None, 'SDevice': None} 31cavium_zip = {'Class': '12', 'Vendor': '177d', 'Device': 'a037', 32 'SVendor': None, 'SDevice': None} 33avp_vnic = {'Class': '05', 'Vendor': '1af4', 'Device': '1110', 34 'SVendor': None, 'SDevice': None} 35 36octeontx2_sso = {'Class': '08', 'Vendor': '177d', 'Device': 'a0f9,a0fa', 37 'SVendor': None, 'SDevice': None} 38octeontx2_npa = {'Class': '08', 'Vendor': '177d', 'Device': 'a0fb,a0fc', 39 'SVendor': None, 'SDevice': None} 40octeontx2_dma = {'Class': '08', 'Vendor': '177d', 'Device': 'a081', 41 'SVendor': None, 'SDevice': None} 42 43intel_ioat_bdw = {'Class': '08', 'Vendor': '8086', 'Device': '6f20,6f21,6f22,6f23,6f24,6f25,6f26,6f27,6f2e,6f2f', 44 'SVendor': None, 'SDevice': None} 45intel_ioat_skx = {'Class': '08', 'Vendor': '8086', 'Device': '2021', 46 'SVendor': None, 'SDevice': None} 47 48network_devices = [network_class, cavium_pkx, avp_vnic, ifpga_class] 49baseband_devices = [acceleration_class] 50crypto_devices = [encryption_class, intel_processor_class] 51eventdev_devices = [cavium_sso, cavium_tim, octeontx2_sso] 52mempool_devices = [cavium_fpa, octeontx2_npa] 53compress_devices = [cavium_zip] 54misc_devices = [intel_ioat_bdw, intel_ioat_skx, octeontx2_dma] 55 56# global dict ethernet devices present. Dictionary indexed by PCI address. 57# Each device within this is itself a dictionary of device properties 58devices = {} 59# list of supported DPDK drivers 60dpdk_drivers = ["igb_uio", "vfio-pci", "uio_pci_generic"] 61 62# command-line arg flags 63b_flag = None 64status_flag = False 65force_flag = False 66args = [] 67 68 69def usage(): 70 '''Print usage information for the program''' 71 argv0 = basename(sys.argv[0]) 72 print(""" 73Usage: 74------ 75 76 %(argv0)s [options] DEVICE1 DEVICE2 .... 77 78where DEVICE1, DEVICE2 etc, are specified via PCI "domain:bus:slot.func" syntax 79or "bus:slot.func" syntax. For devices bound to Linux kernel drivers, they may 80also be referred to by Linux interface name e.g. eth0, eth1, em0, em1, etc. 81 82Options: 83 --help, --usage: 84 Display usage information and quit 85 86 -s, --status: 87 Print the current status of all known network, crypto, event 88 and mempool devices. 89 For each device, it displays the PCI domain, bus, slot and function, 90 along with a text description of the device. Depending upon whether the 91 device is being used by a kernel driver, the igb_uio driver, or no 92 driver, other relevant information will be displayed: 93 * the Linux interface name e.g. if=eth0 94 * the driver being used e.g. drv=igb_uio 95 * any suitable drivers not currently using that device 96 e.g. unused=igb_uio 97 NOTE: if this flag is passed along with a bind/unbind option, the 98 status display will always occur after the other operations have taken 99 place. 100 101 --status-dev: 102 Print the status of given device group. Supported device groups are: 103 "net", "baseband", "crypto", "event", "mempool" and "compress" 104 105 -b driver, --bind=driver: 106 Select the driver to use or \"none\" to unbind the device 107 108 -u, --unbind: 109 Unbind a device (Equivalent to \"-b none\") 110 111 --force: 112 By default, network devices which are used by Linux - as indicated by 113 having routes in the routing table - cannot be modified. Using the 114 --force flag overrides this behavior, allowing active links to be 115 forcibly unbound. 116 WARNING: This can lead to loss of network connection and should be used 117 with caution. 118 119Examples: 120--------- 121 122To display current device status: 123 %(argv0)s --status 124 125To display current network device status: 126 %(argv0)s --status-dev net 127 128To bind eth1 from the current driver and move to use igb_uio 129 %(argv0)s --bind=igb_uio eth1 130 131To unbind 0000:01:00.0 from using any driver 132 %(argv0)s -u 0000:01:00.0 133 134To bind 0000:02:00.0 and 0000:02:00.1 to the ixgbe kernel driver 135 %(argv0)s -b ixgbe 02:00.0 02:00.1 136 137 """ % locals()) # replace items from local variables 138 139 140# This is roughly compatible with check_output function in subprocess module 141# which is only available in python 2.7. 142def check_output(args, stderr=None): 143 '''Run a command and capture its output''' 144 return subprocess.Popen(args, stdout=subprocess.PIPE, 145 stderr=stderr).communicate()[0] 146 147 148def check_modules(): 149 '''Checks that igb_uio is loaded''' 150 global dpdk_drivers 151 152 # list of supported modules 153 mods = [{"Name": driver, "Found": False} for driver in dpdk_drivers] 154 155 # first check if module is loaded 156 try: 157 # Get list of sysfs modules (both built-in and dynamically loaded) 158 sysfs_path = '/sys/module/' 159 160 # Get the list of directories in sysfs_path 161 sysfs_mods = [os.path.join(sysfs_path, o) for o 162 in os.listdir(sysfs_path) 163 if os.path.isdir(os.path.join(sysfs_path, o))] 164 165 # Extract the last element of '/sys/module/abc' in the array 166 sysfs_mods = [a.split('/')[-1] for a in sysfs_mods] 167 168 # special case for vfio_pci (module is named vfio-pci, 169 # but its .ko is named vfio_pci) 170 sysfs_mods = [a if a != 'vfio_pci' else 'vfio-pci' for a in sysfs_mods] 171 172 for mod in mods: 173 if mod["Name"] in sysfs_mods: 174 mod["Found"] = True 175 except: 176 pass 177 178 # check if we have at least one loaded module 179 if True not in [mod["Found"] for mod in mods] and b_flag is not None: 180 if b_flag in dpdk_drivers: 181 print("Error - no supported modules(DPDK driver) are loaded") 182 sys.exit(1) 183 else: 184 print("Warning - no supported modules(DPDK driver) are loaded") 185 186 # change DPDK driver list to only contain drivers that are loaded 187 dpdk_drivers = [mod["Name"] for mod in mods if mod["Found"]] 188 189 190def has_driver(dev_id): 191 '''return true if a device is assigned to a driver. False otherwise''' 192 return "Driver_str" in devices[dev_id] 193 194 195def get_pci_device_details(dev_id, probe_lspci): 196 '''This function gets additional details for a PCI device''' 197 device = {} 198 199 if probe_lspci: 200 extra_info = check_output(["lspci", "-vmmks", dev_id]).splitlines() 201 202 # parse lspci details 203 for line in extra_info: 204 if len(line) == 0: 205 continue 206 name, value = line.decode().split("\t", 1) 207 name = name.strip(":") + "_str" 208 device[name] = value 209 # check for a unix interface name 210 device["Interface"] = "" 211 for base, dirs, _ in os.walk("/sys/bus/pci/devices/%s/" % dev_id): 212 if "net" in dirs: 213 device["Interface"] = \ 214 ",".join(os.listdir(os.path.join(base, "net"))) 215 break 216 # check if a port is used for ssh connection 217 device["Ssh_if"] = False 218 device["Active"] = "" 219 220 return device 221 222def clear_data(): 223 '''This function clears any old data''' 224 global devices 225 devices = {} 226 227def get_device_details(devices_type): 228 '''This function populates the "devices" dictionary. The keys used are 229 the pci addresses (domain:bus:slot.func). The values are themselves 230 dictionaries - one for each NIC.''' 231 global devices 232 global dpdk_drivers 233 234 # first loop through and read details for all devices 235 # request machine readable format, with numeric IDs and String 236 dev = {} 237 dev_lines = check_output(["lspci", "-Dvmmnnk"]).splitlines() 238 for dev_line in dev_lines: 239 if len(dev_line) == 0: 240 if device_type_match(dev, devices_type): 241 # Replace "Driver" with "Driver_str" to have consistency of 242 # of dictionary key names 243 if "Driver" in dev.keys(): 244 dev["Driver_str"] = dev.pop("Driver") 245 if "Module" in dev.keys(): 246 dev["Module_str"] = dev.pop("Module") 247 # use dict to make copy of dev 248 devices[dev["Slot"]] = dict(dev) 249 # Clear previous device's data 250 dev = {} 251 else: 252 name, value = dev_line.decode().split("\t", 1) 253 value_list = value.rsplit(' ', 1) 254 if len(value_list) > 1: 255 # String stored in <name>_str 256 dev[name.rstrip(":") + '_str'] = value_list[0] 257 # Numeric IDs 258 dev[name.rstrip(":")] = value_list[len(value_list) - 1] \ 259 .rstrip("]").lstrip("[") 260 261 if devices_type == network_devices: 262 # check what is the interface if any for an ssh connection if 263 # any to this host, so we can mark it later. 264 ssh_if = [] 265 route = check_output(["ip", "-o", "route"]) 266 # filter out all lines for 169.254 routes 267 route = "\n".join(filter(lambda ln: not ln.startswith("169.254"), 268 route.decode().splitlines())) 269 rt_info = route.split() 270 for i in range(len(rt_info) - 1): 271 if rt_info[i] == "dev": 272 ssh_if.append(rt_info[i+1]) 273 274 # based on the basic info, get extended text details 275 for d in devices.keys(): 276 if not device_type_match(devices[d], devices_type): 277 continue 278 279 # get additional info and add it to existing data 280 devices[d] = devices[d].copy() 281 # No need to probe lspci 282 devices[d].update(get_pci_device_details(d, False).items()) 283 284 if devices_type == network_devices: 285 for _if in ssh_if: 286 if _if in devices[d]["Interface"].split(","): 287 devices[d]["Ssh_if"] = True 288 devices[d]["Active"] = "*Active*" 289 break 290 291 # add igb_uio to list of supporting modules if needed 292 if "Module_str" in devices[d]: 293 for driver in dpdk_drivers: 294 if driver not in devices[d]["Module_str"]: 295 devices[d]["Module_str"] = \ 296 devices[d]["Module_str"] + ",%s" % driver 297 else: 298 devices[d]["Module_str"] = ",".join(dpdk_drivers) 299 300 # make sure the driver and module strings do not have any duplicates 301 if has_driver(d): 302 modules = devices[d]["Module_str"].split(",") 303 if devices[d]["Driver_str"] in modules: 304 modules.remove(devices[d]["Driver_str"]) 305 devices[d]["Module_str"] = ",".join(modules) 306 307 308def device_type_match(dev, devices_type): 309 for i in range(len(devices_type)): 310 param_count = len( 311 [x for x in devices_type[i].values() if x is not None]) 312 match_count = 0 313 if dev["Class"][0:2] == devices_type[i]["Class"]: 314 match_count = match_count + 1 315 for key in devices_type[i].keys(): 316 if key != 'Class' and devices_type[i][key]: 317 value_list = devices_type[i][key].split(',') 318 for value in value_list: 319 if value.strip(' ') == dev[key]: 320 match_count = match_count + 1 321 # count must be the number of non None parameters to match 322 if match_count == param_count: 323 return True 324 return False 325 326def dev_id_from_dev_name(dev_name): 327 '''Take a device "name" - a string passed in by user to identify a NIC 328 device, and determine the device id - i.e. the domain:bus:slot.func - for 329 it, which can then be used to index into the devices array''' 330 331 # check if it's already a suitable index 332 if dev_name in devices: 333 return dev_name 334 # check if it's an index just missing the domain part 335 elif "0000:" + dev_name in devices: 336 return "0000:" + dev_name 337 else: 338 # check if it's an interface name, e.g. eth1 339 for d in devices.keys(): 340 if dev_name in devices[d]["Interface"].split(","): 341 return devices[d]["Slot"] 342 # if nothing else matches - error 343 print("Unknown device: %s. " 344 "Please specify device in \"bus:slot.func\" format" % dev_name) 345 sys.exit(1) 346 347 348def unbind_one(dev_id, force): 349 '''Unbind the device identified by "dev_id" from its current driver''' 350 dev = devices[dev_id] 351 if not has_driver(dev_id): 352 print("%s %s %s is not currently managed by any driver\n" % 353 (dev["Slot"], dev["Device_str"], dev["Interface"])) 354 return 355 356 # prevent us disconnecting ourselves 357 if dev["Ssh_if"] and not force: 358 print("Routing table indicates that interface %s is active. " 359 "Skipping unbind" % (dev_id)) 360 return 361 362 # write to /sys to unbind 363 filename = "/sys/bus/pci/drivers/%s/unbind" % dev["Driver_str"] 364 try: 365 f = open(filename, "a") 366 except: 367 print("Error: unbind failed for %s - Cannot open %s" 368 % (dev_id, filename)) 369 sys.exit(1) 370 f.write(dev_id) 371 f.close() 372 373 374def bind_one(dev_id, driver, force): 375 '''Bind the device given by "dev_id" to the driver "driver". If the device 376 is already bound to a different driver, it will be unbound first''' 377 dev = devices[dev_id] 378 saved_driver = None # used to rollback any unbind in case of failure 379 380 # prevent disconnection of our ssh session 381 if dev["Ssh_if"] and not force: 382 print("Routing table indicates that interface %s is active. " 383 "Not modifying" % (dev_id)) 384 return 385 386 # unbind any existing drivers we don't want 387 if has_driver(dev_id): 388 if dev["Driver_str"] == driver: 389 print("%s already bound to driver %s, skipping\n" 390 % (dev_id, driver)) 391 return 392 else: 393 saved_driver = dev["Driver_str"] 394 unbind_one(dev_id, force) 395 dev["Driver_str"] = "" # clear driver string 396 397 # For kernels >= 3.15 driver_override can be used to specify the driver 398 # for a device rather than relying on the driver to provide a positive 399 # match of the device. The existing process of looking up 400 # the vendor and device ID, adding them to the driver new_id, 401 # will erroneously bind other devices too which has the additional burden 402 # of unbinding those devices 403 if driver in dpdk_drivers: 404 filename = "/sys/bus/pci/devices/%s/driver_override" % dev_id 405 if os.path.exists(filename): 406 try: 407 f = open(filename, "w") 408 except: 409 print("Error: bind failed for %s - Cannot open %s" 410 % (dev_id, filename)) 411 return 412 try: 413 f.write("%s" % driver) 414 f.close() 415 except: 416 print("Error: bind failed for %s - Cannot write driver %s to " 417 "PCI ID " % (dev_id, driver)) 418 return 419 # For kernels < 3.15 use new_id to add PCI id's to the driver 420 else: 421 filename = "/sys/bus/pci/drivers/%s/new_id" % driver 422 try: 423 f = open(filename, "w") 424 except: 425 print("Error: bind failed for %s - Cannot open %s" 426 % (dev_id, filename)) 427 return 428 try: 429 # Convert Device and Vendor Id to int to write to new_id 430 f.write("%04x %04x" % (int(dev["Vendor"],16), 431 int(dev["Device"], 16))) 432 f.close() 433 except: 434 print("Error: bind failed for %s - Cannot write new PCI ID to " 435 "driver %s" % (dev_id, driver)) 436 return 437 438 # do the bind by writing to /sys 439 filename = "/sys/bus/pci/drivers/%s/bind" % driver 440 try: 441 f = open(filename, "a") 442 except: 443 print("Error: bind failed for %s - Cannot open %s" 444 % (dev_id, filename)) 445 if saved_driver is not None: # restore any previous driver 446 bind_one(dev_id, saved_driver, force) 447 return 448 try: 449 f.write(dev_id) 450 f.close() 451 except: 452 # for some reason, closing dev_id after adding a new PCI ID to new_id 453 # results in IOError. however, if the device was successfully bound, 454 # we don't care for any errors and can safely ignore IOError 455 tmp = get_pci_device_details(dev_id, True) 456 if "Driver_str" in tmp and tmp["Driver_str"] == driver: 457 return 458 print("Error: bind failed for %s - Cannot bind to driver %s" 459 % (dev_id, driver)) 460 if saved_driver is not None: # restore any previous driver 461 bind_one(dev_id, saved_driver, force) 462 return 463 464 # For kernels > 3.15 driver_override is used to bind a device to a driver. 465 # Before unbinding it, overwrite driver_override with empty string so that 466 # the device can be bound to any other driver 467 filename = "/sys/bus/pci/devices/%s/driver_override" % dev_id 468 if os.path.exists(filename): 469 try: 470 f = open(filename, "w") 471 except: 472 print("Error: unbind failed for %s - Cannot open %s" 473 % (dev_id, filename)) 474 sys.exit(1) 475 try: 476 f.write("\00") 477 f.close() 478 except: 479 print("Error: unbind failed for %s - Cannot open %s" 480 % (dev_id, filename)) 481 sys.exit(1) 482 483 484def unbind_all(dev_list, force=False): 485 """Unbind method, takes a list of device locations""" 486 487 if dev_list[0] == "dpdk": 488 for d in devices.keys(): 489 if "Driver_str" in devices[d]: 490 if devices[d]["Driver_str"] in dpdk_drivers: 491 unbind_one(devices[d]["Slot"], force) 492 return 493 494 dev_list = map(dev_id_from_dev_name, dev_list) 495 for d in dev_list: 496 unbind_one(d, force) 497 498 499def bind_all(dev_list, driver, force=False): 500 """Bind method, takes a list of device locations""" 501 global devices 502 503 dev_list = map(dev_id_from_dev_name, dev_list) 504 505 for d in dev_list: 506 bind_one(d, driver, force) 507 508 # For kernels < 3.15 when binding devices to a generic driver 509 # (i.e. one that doesn't have a PCI ID table) using new_id, some devices 510 # that are not bound to any other driver could be bound even if no one has 511 # asked them to. hence, we check the list of drivers again, and see if 512 # some of the previously-unbound devices were erroneously bound. 513 if not os.path.exists("/sys/bus/pci/devices/%s/driver_override" % d): 514 for d in devices.keys(): 515 # skip devices that were already bound or that we know should be bound 516 if "Driver_str" in devices[d] or d in dev_list: 517 continue 518 519 # update information about this device 520 devices[d] = dict(devices[d].items() + 521 get_pci_device_details(d, True).items()) 522 523 # check if updated information indicates that the device was bound 524 if "Driver_str" in devices[d]: 525 unbind_one(d, force) 526 527 528def display_devices(title, dev_list, extra_params=None): 529 '''Displays to the user the details of a list of devices given in 530 "dev_list". The "extra_params" parameter, if given, should contain a string 531 with %()s fields in it for replacement by the named fields in each 532 device's dictionary.''' 533 strings = [] # this holds the strings to print. We sort before printing 534 print("\n%s" % title) 535 print("="*len(title)) 536 if len(dev_list) == 0: 537 strings.append("<none>") 538 else: 539 for dev in dev_list: 540 if extra_params is not None: 541 strings.append("%s '%s %s' %s" % (dev["Slot"], 542 dev["Device_str"], 543 dev["Device"], 544 extra_params % dev)) 545 else: 546 strings.append("%s '%s'" % (dev["Slot"], dev["Device_str"])) 547 # sort before printing, so that the entries appear in PCI order 548 strings.sort() 549 print("\n".join(strings)) # print one per line 550 551def show_device_status(devices_type, device_name): 552 global dpdk_drivers 553 kernel_drv = [] 554 dpdk_drv = [] 555 no_drv = [] 556 557 # split our list of network devices into the three categories above 558 for d in devices.keys(): 559 if device_type_match(devices[d], devices_type): 560 if not has_driver(d): 561 no_drv.append(devices[d]) 562 continue 563 if devices[d]["Driver_str"] in dpdk_drivers: 564 dpdk_drv.append(devices[d]) 565 else: 566 kernel_drv.append(devices[d]) 567 568 n_devs = len(dpdk_drv) + len(kernel_drv) + len(no_drv) 569 570 # don't bother displaying anything if there are no devices 571 if n_devs == 0: 572 msg = "No '%s' devices detected" % device_name 573 print("") 574 print(msg) 575 print("".join('=' * len(msg))) 576 return 577 578 # print each category separately, so we can clearly see what's used by DPDK 579 if len(dpdk_drv) != 0: 580 display_devices("%s devices using DPDK-compatible driver" % device_name, 581 dpdk_drv, "drv=%(Driver_str)s unused=%(Module_str)s") 582 if len(kernel_drv) != 0: 583 display_devices("%s devices using kernel driver" % device_name, kernel_drv, 584 "if=%(Interface)s drv=%(Driver_str)s " 585 "unused=%(Module_str)s %(Active)s") 586 if len(no_drv) != 0: 587 display_devices("Other %s devices" % device_name, no_drv, 588 "unused=%(Module_str)s") 589 590def show_status(): 591 '''Function called when the script is passed the "--status" option. 592 Displays to the user what devices are bound to the igb_uio driver, the 593 kernel driver or to no driver''' 594 595 if status_dev == "net" or status_dev == "all": 596 show_device_status(network_devices, "Network") 597 598 if status_dev == "baseband" or status_dev == "all": 599 show_device_status(baseband_devices, "Baseband") 600 601 if status_dev == "crypto" or status_dev == "all": 602 show_device_status(crypto_devices, "Crypto") 603 604 if status_dev == "event" or status_dev == "all": 605 show_device_status(eventdev_devices, "Eventdev") 606 607 if status_dev == "mempool" or status_dev == "all": 608 show_device_status(mempool_devices, "Mempool") 609 610 if status_dev == "compress" or status_dev == "all": 611 show_device_status(compress_devices , "Compress") 612 613 if status_dev == "misc" or status_dev == "all": 614 show_device_status(misc_devices, "Misc (rawdev)") 615 616def parse_args(): 617 '''Parses the command-line arguments given by the user and takes the 618 appropriate action for each''' 619 global b_flag 620 global status_flag 621 global status_dev 622 global force_flag 623 global args 624 if len(sys.argv) <= 1: 625 usage() 626 sys.exit(0) 627 628 try: 629 opts, args = getopt.getopt(sys.argv[1:], "b:us", 630 ["help", "usage", "status", "status-dev=", 631 "force", "bind=", "unbind", ]) 632 except getopt.GetoptError as error: 633 print(str(error)) 634 print("Run '%s --usage' for further information" % sys.argv[0]) 635 sys.exit(1) 636 637 for opt, arg in opts: 638 if opt == "--help" or opt == "--usage": 639 usage() 640 sys.exit(0) 641 if opt == "--status-dev": 642 status_flag = True 643 status_dev = arg 644 if opt == "--status" or opt == "-s": 645 status_flag = True 646 status_dev = "all" 647 if opt == "--force": 648 force_flag = True 649 if opt == "-b" or opt == "-u" or opt == "--bind" or opt == "--unbind": 650 if b_flag is not None: 651 print("Error - Only one bind or unbind may be specified\n") 652 sys.exit(1) 653 if opt == "-u" or opt == "--unbind": 654 b_flag = "none" 655 else: 656 b_flag = arg 657 658 659def do_arg_actions(): 660 '''do the actual action requested by the user''' 661 global b_flag 662 global status_flag 663 global force_flag 664 global args 665 666 if b_flag is None and not status_flag: 667 print("Error: No action specified for devices." 668 "Please give a -b or -u option") 669 print("Run '%s --usage' for further information" % sys.argv[0]) 670 sys.exit(1) 671 672 if b_flag is not None and len(args) == 0: 673 print("Error: No devices specified.") 674 print("Run '%s --usage' for further information" % sys.argv[0]) 675 sys.exit(1) 676 677 if b_flag == "none" or b_flag == "None": 678 unbind_all(args, force_flag) 679 elif b_flag is not None: 680 bind_all(args, b_flag, force_flag) 681 if status_flag: 682 if b_flag is not None: 683 clear_data() 684 # refresh if we have changed anything 685 get_device_details(network_devices) 686 get_device_details(baseband_devices) 687 get_device_details(crypto_devices) 688 get_device_details(eventdev_devices) 689 get_device_details(mempool_devices) 690 get_device_details(compress_devices) 691 get_device_details(misc_devices) 692 show_status() 693 694 695def main(): 696 '''program main function''' 697 # check if lspci is installed, suppress any output 698 with open(os.devnull, 'w') as devnull: 699 ret = subprocess.call(['which', 'lspci'], 700 stdout=devnull, stderr=devnull) 701 if ret != 0: 702 print("'lspci' not found - please install 'pciutils'") 703 sys.exit(1) 704 parse_args() 705 check_modules() 706 clear_data() 707 get_device_details(network_devices) 708 get_device_details(baseband_devices) 709 get_device_details(crypto_devices) 710 get_device_details(eventdev_devices) 711 get_device_details(mempool_devices) 712 get_device_details(compress_devices) 713 get_device_details(misc_devices) 714 do_arg_actions() 715 716if __name__ == "__main__": 717 main() 718