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31 Running the Application
32 =======================
34 EAL Command-line Options
35 ------------------------
37 The following are the EAL command-line options that can be used in conjunction with the testpmd,
38 or any other DPDK application.
39 See the DPDK Getting Started Guides for more information on these options.
43 Set the hexadecimal bitmask of the cores to run on.
47 List of cores to run on
49 The argument format is ``<c1>[-c2][,c3[-c4],...]``
50 where ``c1``, ``c2``, etc are core indexes between 0 and 128.
52 * ``--lcores COREMAP``
54 Map lcore set to physical cpu set
56 The argument format is::
58 <lcores[@cpus]>[<,lcores[@cpus]>...]
60 Lcore and CPU lists are grouped by ``(`` and ``)`` Within the group.
61 The ``-`` character is used as a range separator and ``,`` is used as a single number separator.
62 The grouping ``()`` can be omitted for single element group.
63 The ``@`` can be omitted if cpus and lcores have the same value.
65 * ``--master-lcore ID``
67 Core ID that is used as master.
71 Set the number of memory channels to use.
73 * ``-b, --pci-blacklist domain:bus:devid.func``
75 Blacklist a PCI device to prevent EAL from using it. Multiple -b options are allowed.
79 Load an external driver. Multiple -d options are allowed.
81 * ``-w, --pci-whitelist domain:bus:devid:func``
83 Add a PCI device in white list.
87 Memory to allocate. See also ``--socket-mem``.
91 Set the number of memory ranks (auto-detected by default).
95 Display the version information on startup.
99 Set the syslog facility.
103 Set the memory to allocate on specific sockets (use comma separated values).
107 Specify the directory where the hugetlbfs is mounted.
109 * ``mbuf-pool-ops-name``:
111 Pool ops name for mbuf to use.
115 Set the type of the current process.
119 Prefix for hugepage filenames.
121 * ``-vmware-tsc-map``
123 Use VMware TSC map instead of native RDTSC.
127 Add a virtual device using the format::
129 <driver><id>[,key=val, ...]
133 --vdev 'net_pcap0,rx_pcap=input.pcap,tx_pcap=output.pcap'
135 * ``--base-virtaddr``
137 Specify base virtual address.
139 * ``--create-uio-dev``
141 Create ``/dev/uioX`` (usually done by hotplug).
145 No shared config (mmap-ed files).
157 Use malloc instead of hugetlbfs.
160 Testpmd Command-line Options
161 ----------------------------
163 The following are the command-line options for the testpmd applications.
164 They must be separated from the EAL options, shown in the previous section, with a ``--`` separator:
166 .. code-block:: console
168 sudo ./testpmd -l 0-3 -n 4 -- -i --portmask=0x1 --nb-cores=2
170 The commandline options are:
172 * ``-i, --interactive``
174 Run testpmd in interactive mode.
175 In this mode, the testpmd starts with a prompt that can be used to start and stop forwarding,
176 configure the application and display stats on the current packet processing session.
177 See :ref:`testpmd_runtime` for more details.
179 In non-interactive mode,
180 the application starts with the configuration specified on the command-line and
181 immediately enters forwarding mode.
185 Display a help message and quit.
187 * ``-a, --auto-start``
189 Start forwarding on initialization.
193 Start forwarding, after sending a burst of packets first.
197 This flag should be only used in non-interactive mode.
199 * ``--stats-period PERIOD``
201 Display statistics every PERIOD seconds, if interactive mode is disabled.
202 The default value is 0, which means that the statistics will not be displayed.
206 Set the number of forwarding cores,
207 where 1 <= N <= "number of cores" or ``CONFIG_RTE_MAX_LCORE`` from the configuration file.
208 The default value is 1.
212 Set the number of forwarding ports,
213 where 1 <= N <= "number of ports" on the board or ``CONFIG_RTE_MAX_ETHPORTS`` from the configuration file.
214 The default value is the number of ports on the board.
216 * ``--coremask=0xXX``
218 Set the hexadecimal bitmask of the cores running the packet forwarding test.
219 The master lcore is reserved for command line parsing only and cannot be masked on for packet forwarding.
221 * ``--portmask=0xXX``
223 Set the hexadecimal bitmask of the ports used by the packet forwarding test.
227 Enable NUMA-aware allocation of RX/TX rings and of RX memory buffers
228 (mbufs). [Default setting]
232 Disable NUMA-aware allocation of RX/TX rings and of RX memory buffers (mbufs).
234 * ``--port-numa-config=(port,socket)[,(port,socket)]``
236 Specify the socket on which the memory pool to be used by the port will be allocated.
238 * ``--ring-numa-config=(port,flag,socket)[,(port,flag,socket)]``
240 Specify the socket on which the TX/RX rings for the port will be allocated.
241 Where flag is 1 for RX, 2 for TX, and 3 for RX and TX.
245 Set the socket from which all memory is allocated in NUMA mode,
246 where 0 <= N < number of sockets on the board.
250 Set the data size of the mbufs used to N bytes, where N < 65536. The default value is 2048.
252 * ``--total-num-mbufs=N``
254 Set the number of mbufs to be allocated in the mbuf pools, where N > 1024.
256 * ``--max-pkt-len=N``
258 Set the maximum packet size to N bytes, where N >= 64. The default value is 1518.
260 * ``--eth-peers-configfile=name``
262 Use a configuration file containing the Ethernet addresses of the peer ports.
263 The configuration file should contain the Ethernet addresses on separate lines::
270 * ``--eth-peer=N,XX:XX:XX:XX:XX:XX``
272 Set the MAC address ``XX:XX:XX:XX:XX:XX`` of the peer port N,
273 where 0 <= N < ``CONFIG_RTE_MAX_ETHPORTS`` from the configuration file.
275 * ``--pkt-filter-mode=mode``
277 Set Flow Director mode where mode is either ``none`` (the default), ``signature`` or ``perfect``.
278 See :ref:`testpmd_flow_director` for more details.
280 * ``--pkt-filter-report-hash=mode``
282 Set Flow Director hash match reporting mode where mode is ``none``, ``match`` (the default) or ``always``.
284 * ``--pkt-filter-size=N``
286 Set Flow Director allocated memory size, where N is 64K, 128K or 256K.
287 Sizes are in kilobytes. The default is 64.
289 * ``--pkt-filter-flexbytes-offset=N``
291 Set the flexbytes offset.
292 The offset is defined in words (not bytes) counted from the first byte of the destination Ethernet MAC address,
293 where N is 0 <= N <= 32.
294 The default value is 0x6.
296 * ``--pkt-filter-drop-queue=N``
299 In perfect filter mode, when a rule is added with queue = -1, the packet will be enqueued into the RX drop-queue.
300 If the drop-queue does not exist, the packet is dropped. The default value is N=127.
302 * ``--disable-crc-strip``
304 Disable hardware CRC stripping.
308 Enable large receive offload.
310 * ``--enable-rx-cksum``
312 Enable hardware RX checksum offload.
314 * ``--enable-scatter``
316 Enable scatter (multi-segment) RX.
318 * ``--disable-hw-vlan``
320 Disable hardware VLAN.
322 * ``--disable-hw-vlan-filter``
324 Disable hardware VLAN filter.
326 * ``--disable-hw-vlan-strip``
328 Disable hardware VLAN strip.
330 * ``--disable-hw-vlan-extend``
332 Disable hardware VLAN extend.
334 * ``--enable-drop-en``
336 Enable per-queue packet drop for packets with no descriptors.
340 Disable RSS (Receive Side Scaling).
342 * ``--port-topology=mode``
344 Set port topology, where mode is ``paired`` (the default) or ``chained``.
346 In ``paired`` mode, the forwarding is between pairs of ports, for example: (0,1), (2,3), (4,5).
348 In ``chained`` mode, the forwarding is to the next available port in the port mask, for example: (0,1), (1,2), (2,0).
350 The ordering of the ports can be changed using the portlist testpmd runtime function.
352 * ``--forward-mode=mode``
354 Set the forwarding mode where ``mode`` is one of the following::
368 Set RSS functions for IPv4/IPv6 only.
372 Set RSS functions for IPv4/IPv6 and UDP.
376 Set the number of RX queues per port to N, where 1 <= N <= 65535.
377 The default value is 1.
381 Set the number of descriptors in the RX rings to N, where N > 0.
382 The default value is 128.
386 Set the number of TX queues per port to N, where 1 <= N <= 65535.
387 The default value is 1.
391 Set the number of descriptors in the TX rings to N, where N > 0.
392 The default value is 512.
396 Set the number of packets per burst to N, where 1 <= N <= 512.
397 The default value is 16.
401 Set the cache of mbuf memory pools to N, where 0 <= N <= 512.
402 The default value is 16.
406 Set the prefetch threshold register of RX rings to N, where N >= 0.
407 The default value is 8.
411 Set the host threshold register of RX rings to N, where N >= 0.
412 The default value is 8.
416 Set the free threshold of RX descriptors to N, where 0 <= N < value of --rxd.
417 The default value is 0.
421 Set the write-back threshold register of RX rings to N, where N >= 0.
422 The default value is 4.
426 Set the prefetch threshold register of TX rings to N, where N >= 0.
427 The default value is 36.
431 Set the host threshold register of TX rings to N, where N >= 0.
432 The default value is 0.
436 Set the write-back threshold register of TX rings to N, where N >= 0.
437 The default value is 0.
441 Set the transmit free threshold of TX rings to N, where 0 <= N <= value of ``--txd``.
442 The default value is 0.
446 Set the transmit RS bit threshold of TX rings to N, where 0 <= N <= value of ``--txd``.
447 The default value is 0.
449 * ``--txqflags=0xXXXXXXXX``
451 Set the hexadecimal bitmask of TX queue flags, where 0 <= N <= 0x7FFFFFFF.
452 The default value is 0.
456 When using hardware offload functions such as vlan or checksum
457 add ``txqflags=0`` to force the full-featured TX code path.
458 In some PMDs this may already be the default.
461 * ``--rx-queue-stats-mapping=(port,queue,mapping)[,(port,queue,mapping)]``
463 Set the RX queues statistics counters mapping 0 <= mapping <= 15.
465 * ``--tx-queue-stats-mapping=(port,queue,mapping)[,(port,queue,mapping)]``
467 Set the TX queues statistics counters mapping 0 <= mapping <= 15.
471 Don't flush the RX streams before starting forwarding. Used mainly with the PCAP PMD.
475 Set TX segment sizes or total packet length. Valid for ``tx-only``
476 and ``flowgen`` forwarding modes.
478 * ``--disable-link-check``
480 Disable check on link status when starting/stopping ports.
482 * ``--no-lsc-interrupt``
484 Disable LSC interrupts for all ports, even those supporting it.
486 * ``--no-rmv-interrupt``
488 Disable RMV interrupts for all ports, even those supporting it.
490 * ``--bitrate-stats=N``
492 Set the logical core N to perform bitrate calculation.
494 * ``--print-event <unknown|intr_lsc|queue_state|intr_reset|vf_mbox|macsec|intr_rmv|all>``
496 Enable printing the occurrence of the designated event. Using all will
499 * ``--mask-event <unknown|intr_lsc|queue_state|intr_reset|vf_mbox|macsec|intr_rmv|all>``
501 Disable printing the occurrence of the designated event. Using all will
504 * ``--flow-isolate-all``
506 Providing this parameter requests flow API isolated mode on all ports at
507 initialization time. It ensures all traffic is received through the
508 configured flow rules only (see flow command).
510 Ports that do not support this mode are automatically discarded.