5. Testpmd Runtime Functions

Where the testpmd application is started in interactive mode, (-i|–interactive), it displays a prompt that can be used to start and stop forwarding, configure the application, display statistics, set the Flow Director and other tasks.

testpmd>

The testpmd prompt has some, limited, readline support. Common bash command- line functions such as Ctrl+a and Ctrl+e to go to the start and end of the prompt line are supported as well as access to the command history via the up-arrow.

There is also support for tab completion. If you type a partial command and hit <TAB> you get a list of the available completions:

testpmd> show port <TAB>

    info [Mul-choice STRING]: show|clear port info|stats|fdir|stat_qmap X
    info [Mul-choice STRING]: show|clear port info|stats|fdir|stat_qmap all
    stats [Mul-choice STRING]: show|clear port info|stats|fdir|stat_qmap X
    stats [Mul-choice STRING]: show|clear port info|stats|fdir|stat_qmap all
    ...

5.1. Help Functions

The testpmd has on-line help for the functions that are available at runtime. These are divided into sections and can be accessed using help, help section or help all:

testpmd> help

    Help is available for the following sections:
    help control    : Start and stop forwarding.
    help display    : Displaying port, stats and config information.
    help config     : Configuration information.
    help ports      : Configuring ports.
    help flowdir    : Flow Director filter help.
    help registers  : Reading and setting port registers.
    help filters    : Filters configuration help.
    help all        : All of the above sections.

5.2. Control Functions

5.2.1. start

Start packet forwarding with current configuration:

start

5.2.2. start tx_first

Start packet forwarding with current configuration after sending one burst of packets:

start tx_first

5.2.3. stop

Stop packet forwarding, and display accumulated statistics:

stop

5.2.4. quit

Quit to prompt:

quit

5.3. Display Functions

The functions in the following sections are used to display information about the testpmd configuration or the NIC status.

5.3.1. show port

Display information for a given port or all ports:

show port (info|stats|fdir|stat_qmap) (port_id|all)

The available information categories are:

info : General port information such as MAC address.

stats : RX/TX statistics.

fdir : Flow Director information and statistics.

stat_qmap : Queue statistics mapping.

For example:

testpmd> show port info 0

********************* Infos for port 0 *********************

MAC address: XX:XX:XX:XX:XX:XX
Link status: up
Link speed: 10000 Mbps
Link duplex: full-duplex
Promiscuous mode: enabled
Allmulticast mode: disabled
Maximum number of MAC addresses: 127
VLAN offload:
    strip on
    filter on
    qinq(extend) off

5.3.2. show port rss reta

Display the rss redirection table entry indicated by masks on port X:

show port (port_id) rss reta (size) (mask0, mask1...)

size is used to indicate the hardware supported reta size

5.3.3. show port rss-hash

Display the RSS hash functions and RSS hash key of a port:

show port (port_id) rss-hash [key]

5.3.4. clear port

Clear the port statistics for a given port or for all ports:

clear port (info|stats|fdir|stat_qmap) (port_id|all)

For example:

testpmd> clear port stats all

5.3.5. show config

Displays the configuration of the application. The configuration comes from the command-line, the runtime or the application defaults:

show config (rxtx|cores|fwd)

The available information categories are:

rxtx : RX/TX configuration items.

cores : List of forwarding cores.

fwd : Packet forwarding configuration.

For example:

testpmd> show config rxtx

io packet forwarding - CRC stripping disabled - packets/burst=16
nb forwarding cores=2 - nb forwarding ports=1
RX queues=1 - RX desc=128 - RX free threshold=0
RX threshold registers: pthresh=8 hthresh=8 wthresh=4
TX queues=1 - TX desc=512 - TX free threshold=0
TX threshold registers: pthresh=36 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ flags=0x0

5.3.6. read rxd

Display an RX descriptor for a port RX queue:

read rxd (port_id) (queue_id) (rxd_id)

For example:

testpmd> read rxd 0 0 4
    0x0000000B - 0x001D0180 / 0x0000000B - 0x001D0180

5.3.7. read txd

Display a TX descriptor for a port TX queue:

read txd (port_id) (queue_id) (txd_id)

For example:

testpmd> read txd 0 0 4
    0x00000001 - 0x24C3C440 / 0x000F0000 - 0x2330003C

5.4. Configuration Functions

The testpmd application can be configured from the runtime as well as from the command-line.

This section details the available configuration functions that are available.

Note

Configuration changes only become active when forwarding is started/restarted.

5.4.1. set default

Reset forwarding to the default configuration:

set default

5.4.2. set verbose

Set the debug verbosity level:

set verbose (level)

Currently the only available levels are 0 (silent except for error) and 1 (fully verbose).

5.4.3. set nbport

Set the number of ports used by the application:

set nbport (num)

This is equivalent to the –nb-ports command-line option.

5.4.4. set nbcore

Set the number of cores used by the application:

set nbcore (num)

This is equivalent to the –nb-cores command-line option.

Note

The number of cores used must not be greater than number of ports used multiplied by the number of queues per port.

5.4.5. set coremask

Set the forwarding cores hexadecimal mask:

set coremask (mask)

This is equivalent to the –coremask command-line option.

Note

The master lcore is reserved for command line parsing only and cannot be masked on for packet forwarding.

5.4.6. set portmask

Set the forwarding ports hexadecimal mask:

set portmask (mask)

This is equivalent to the –portmask command-line option.

5.4.7. set burst

Set number of packets per burst:

set burst (num)

This is equivalent to the –burst command-line option.

In mac_retry forwarding mode, the transmit delay time and number of retries can also be set.

set burst tx delay (micrseconds) retry (num)

5.4.8. set txpkts

Set the length of each segment of the TX-ONLY packets:

set txpkts (x[,y]*)

Where x[,y]* represents a CSV list of values, without white space.

5.4.9. set corelist

Set the list of forwarding cores:

set corelist (x[,y]*)

For example, to change the forwarding cores:

testpmd> set corelist 3,1
testpmd> show config fwd

io packet forwarding - ports=2 - cores=2 - streams=2 - NUMA support disabled
Logical Core 3 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
Logical Core 1 (socket 0) forwards packets on 1 streams:
RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00

Note

The cores are used in the same order as specified on the command line.

5.4.10. set portlist

Set the list of forwarding ports:

set portlist (x[,y]*)

For example, to change the port forwarding:

testpmd> set portlist 0,2,1,3
testpmd> show config fwd

io packet forwarding - ports=4 - cores=1 - streams=4
Logical Core 3 (socket 0) forwards packets on 4 streams:
RX P=0/Q=0 (socket 0) -> TX P=2/Q=0 (socket 0) peer=02:00:00:00:00:01
RX P=2/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
RX P=1/Q=0 (socket 0) -> TX P=3/Q=0 (socket 0) peer=02:00:00:00:00:03
RX P=3/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:02

5.4.11. vlan set strip

Set the VLAN strip on a port:

vlan set strip (on|off) (port_id)

5.4.12. vlan set stripq

Set the VLAN strip for a queue on a port:

vlan set stripq (on|off) (port_id,queue_id)

5.4.13. vlan set filter

Set the VLAN filter on a port:

vlan set filter (on|off) (port_id)

5.4.14. vlan set qinq

Set the VLAN QinQ (extended queue in queue) on for a port:

vlan set qinq (on|off) (port_id)

5.4.15. vlan set tpid

Set the outer VLAN TPID for packet filtering on a port:

vlan set tpid (value) (port_id)

Note

TPID value must be a 16-bit number (value <= 65536).

5.4.16. rx_vlan add

Add a VLAN ID, or all identifiers, to the set of VLAN identifiers filtered by port ID:

rx_vlan add (vlan_id|all) (port_id)

Note

VLAN filter must be set on that port. VLAN ID < 4096.

5.4.17. rx_vlan rm

Remove a VLAN ID, or all identifiers, from the set of VLAN identifiers filtered by port ID:

rx_vlan rm (vlan_id|all) (port_id)

5.4.18. rx_vlan add(for VF)

Add a VLAN ID, to the set of VLAN identifiers filtered for VF(s) for port ID:

rx_vlan add (vlan_id) port (port_id) vf (vf_mask)

5.4.19. rx_vlan rm(for VF)

Remove a VLAN ID, from the set of VLAN identifiers filtered for VF(s) for port ID:

rx_vlan rm (vlan_id) port (port_id) vf (vf_mask)

5.4.20. rx_vlan set tpid

Set the outer VLAN TPID for packet filtering on a port:

rx_vlan set tpid (value) (port_id)

5.4.21. tunnel_filter add

Add a tunnel filter on a port:

tunnel_filter add (port_id) (outer_mac) (inner_mac) (ip_addr) (inner_vlan)
(tunnel_type) (filter_type) (tenant_id) (queue_id)

5.4.22. tunnel_filter remove

Remove a tunnel filter on a port:

tunnel_filter rm (port_id) (outer_mac) (inner_mac) (ip_addr) (inner_vlan)
(tunnel_type) (filter_type) (tenant_id) (queue_id)

5.4.23. rx_vxlan_port add

Add an UDP port for VXLAN packet filter on a port:

rx_vxlan_port add (udp_port) (port_id)

5.4.24. rx_vxlan_port remove

Remove an UDP port for VXLAN packet filter on a port:

rx_vxlan_port rm (udp_port) (port_id)

5.4.25. tx_vlan set

Set hardware insertion of VLAN ID in packets sent on a port:

tx_vlan set (vlan_id) (port_id)

5.4.26. tx_vlan set pvid

Set port based hardware insertion of VLAN ID in pacekts sent on a port:

tx_vlan set pvid (port_id) (vlan_id) (on|off)

5.4.27. tx_vlan reset

Disable hardware insertion of a VLAN header in packets sent on a port:

tx_vlan reset (port_id)

5.4.28. tx_checksum set

Select hardware or software calculation of the checksum when transmitting a packet using the csum forward engine:

tx_cksum set (ip|udp|tcp|sctp|vxlan)

ip|udp|tcp|sctp always concern the inner layer. vxlan concerns the outer IP and UDP layer (in case the packet is recognized as a vxlan packet by the forward engine)

Note

Check the NIC Datasheet for hardware limits.

5.4.29. tx_checksum show

Display tx checksum offload configuration:

tx_checksum show (port_id)

5.4.30. tso set

Enable TCP Segmentation Offload in csum forward engine:

tso set (segsize) (port_id)

Note

Please check the NIC datasheet for HW limits

5.4.31. tso show

Display the status of TCP Segmentation Offload:

tso show (port_id)

5.4.32. set fwd

Set the packet forwarding mode:

set fwd (io|mac|mac_retry|macswap|flowgen|rxonly|txonly|csum|icmpecho)

The available information categories are:

  • io: forwards packets “as-is” in I/O mode. This is the fastest possible forwarding operation as it does not access packets data. This is the default mode.
  • mac: changes the source and the destination Ethernet addresses of packets before forwarding them.
  • mac_retry: same as “mac” forwarding mode, but includes retries if the destination queue is full.
  • macswap: MAC swap forwarding mode. Swaps the source and the destination Ethernet addresses of packets before forwarding them.
  • flowgen: multi-flow generation mode. Originates a bunch of flows (varying destination IP addresses), and terminate receive traffic.
  • rxonly: receives packets but doesn’t transmit them.
  • txonly: generates and transmits packets without receiving any.
  • csum: changes the checksum field with HW or SW methods depending on the offload flags on the packet.
  • icmpecho: receives a burst of packets, lookup for IMCP echo requests and, if any, send back ICMP echo replies.

Example:

testpmd> set fwd rxonly

Set rxonly packet forwarding mode

5.4.33. mac_addr add

Add an alternative MAC address to a port:

mac_addr add (port_id) (XX:XX:XX:XX:XX:XX)

5.4.34. mac_addr remove

Remove a MAC address from a port:

mac_addr remove (port_id) (XX:XX:XX:XX:XX:XX)

5.4.35. mac_addr add(for VF)

Add an alternative MAC address for a VF to a port:

mac_add add port (port_id) vf (vf_id) (XX:XX:XX:XX:XX:XX)

5.4.36. set port-uta

Set the unicast hash filter(s) on/off for a port X:

set port (port_id) uta (XX:XX:XX:XX:XX:XX|all) (on|off)

5.4.37. set promisc

Set the promiscuous mode on for a port or for all ports. In promiscuous mode packets are not dropped if they aren’t for the specified MAC address:

set promisc (port_id|all) (on|off)

5.4.38. set allmulti

Set the allmulti mode for a port or for all ports:

set allmulti (port_id|all) (on|off)

Same as the ifconfig (8) option. Controls how multicast packets are handled.

5.4.39. set flow_ctrl rx

Set the link flow control parameter on a port:

set flow_ctrl rx (on|off) tx (on|off) (high_water) (low_water) (pause_time) (send_xon) (port_id)

Where:

high_water (integer): High threshold value to trigger XOFF.

low_water (integer) : Low threshold value to trigger XON.

pause_time (integer): Pause quota in the Pause frame.

send_xon (0/1) : Send XON frame.

mac_ctrl_frame_fwd : Enable receiving MAC control frames

5.4.40. set pfc_ctrl rx

Set the priority flow control parameter on a port:

set pfc_ctrl rx (on|off) tx (on|off) (high_water) (low_water) (pause_time) (priority) (port_id)

Where:

priority (0-7): VLAN User Priority.

5.4.41. set stat_qmap

Set statistics mapping (qmapping 0..15) for RX/TX queue on port:

set stat_qmap (tx|rx) (port_id) (queue_id) (qmapping)

For example, to set rx queue 2 on port 0 to mapping 5:

testpmd>set stat_qmap rx 0 2 5

5.4.42. set port - rx/tx(for VF)

Set VF receive/transmit from a port:

set port (port_id) vf (vf_id) (rx|tx) (on|off)

5.4.43. set port - mac address filter (for VF)

Add/Remove unicast or multicast MAC addr filter for a VF:

set port (port_id) vf (vf_id) (mac_addr)
(exact-mac|exact-mac-vlan|hashmac|hashmac-vlan) (on|off)

5.4.44. set port - rx mode(for VF)

Set the VF receive mode of a port:

set port (port_id) vf (vf_id) rxmode (AUPE|ROPE|BAM|MPE) (on|off)

The available receive modes are:

  • AUPE: accepts untagged VLAN.
  • ROPE: accepts unicast hash.
  • BAM: accepts broadcast packets
  • MPE: accepts all multicast packets

5.4.45. set port - tx_rate (for Queue)

Set TX rate limitation for queue of a port ID:

set port (port_id) queue (queue_id) rate (rate_value)

5.4.46. set port - tx_rate (for VF)

Set TX rate limitation for queues in VF of a port ID:

set port (port_id) vf (vf_id) rate (rate_value) queue_mask (queue_mask)

5.4.47. set port - mirror rule

Set port or vlan type mirror rule for a port.

set port (port_id) mirror-rule (rule_id) (pool-mirror|vlan-mirror) (poolmask|vlanid[,vlanid]*) dst-pool (pool_id) (on|off)

For example to enable mirror traffic with vlan 0,1 to pool 0:

set port 0 mirror-rule 0 vlan-mirror 0,1 dst-pool 0 on

5.4.48. reset port - mirror rule

Reset a mirror rule for a port.

reset port (port_id) mirror-rule (rule_id)

5.4.49. set flush_rx

Flush (default) or don’t flush RX streams before forwarding. Mainly used with PCAP drivers to avoid the default behavior of flushing the first 512 packets on RX streams.

set flush_rx off

5.4.50. set bypass mode

Set the bypass mode for the lowest port on bypass enabled NIC.

set bypass mode (normal|bypass|isolate) (port_id)

5.4.51. set bypass event

Set the event required to initiate specified bypass mode for the lowest port on a bypass enabled NIC where:

  • timeout: enable bypass after watchdog timeout.
  • os_on: enable bypass when OS/board is powered on.
  • os_off: enable bypass when OS/board is powered off.
  • power_on: enable bypass when power supply is turned on.
  • power_off: enable bypass when power supply is turned off.

set bypass event (timeout|os_on|os_off|power_on|power_off) mode (normal|bypass|isolate) (port_id)

5.4.52. set bypass timeout

Set the bypass watchdog timeout to ‘n’ seconds where 0 = instant.

set bypass timeout (0|1.5|2|3|4|8|16|32)

5.4.53. show bypass config

Show the bypass configuration for a bypass enabled NIC using the lowest port on the NIC.

show bypass config (port_id)

5.5. Port Functions

The following sections show functions for configuring ports.

Note

Port configuration changes only become active when forwarding is started/restarted.

5.5.1. port start

Start all ports or a specific port:

port start (port_id|all)

5.5.2. port stop

Stop all ports or a specific port:

port stop (port_id|all)

5.5.3. port close

Close all ports or a specific port:

port close (port_id|all)

5.5.4. port start/stop queue

Start/stop a rx/tx queue on a specific port:

port (port_id) (rxq|txq) (queue_id) (start|stop)

Only take effect when port is started.

5.5.5. port config - speed

Set the speed and duplex mode for all ports or a specific port:

port config (port_id|all) speed (10|100|1000|10000|auto) duplex (half|full|auto)

5.5.6. port config - queues/descriptors

Set number of queues/descriptors for rxq, txq, rxd and txd:

port config all (rxq|txq|rxd|txd) (value)

This is equivalent to the –rxq, –txq, –rxd and –txd command-line options.

5.5.7. port config - max-pkt-len

Set the maximum packet length:

port config all max-pkt-len (value)

This is equivalent to the –max-pkt-len command-line option.

5.5.8. port config - CRC Strip

Set hardware CRC stripping on or off for all ports:

port config all crc-strip (on|off)

CRC stripping is off by default.

The on option is equivalent to the –crc-strip command-line option.

5.5.9. port config - RX Checksum

Set hardware RX checksum offload to on or off for all ports:

port config all rx-cksum (on|off)

Checksum offload is off by default.

The on option is equivalent to the –enable-rx-cksum command-line option.

5.5.10. port config - VLAN

Set hardware VLAN on or off for all ports:

port config all hw-vlan (on|off)

Hardware VLAN is on by default.

The off option is equivalent to the –disable-hw-vlan command-line option.

5.5.11. port config - Drop Packets

Set packet drop for packets with no descriptors on or off for all ports:

port config all drop-en (on|off)

Packet dropping for packets with no descriptors is off by default.

The on option is equivalent to the –enable-drop-en command-line option.

5.5.12. port config - RSS

Set the RSS (Receive Side Scaling) mode on or off:

port config all rss (ip|udp|none)

RSS is on by default.

The off option is equivalent to the –disable-rss command-line option.

5.5.13. port config - RSS Reta

Set the RSS (Receive Side Scaling) redirection table:

port config all rss reta (hash,queue)[,(hash,queue)]

5.5.14. port config - DCB

Set the DCB mode for an individual port:

port config (port_id) dcb vt (on|off) (traffic_class) pfc (on|off)

The traffic class should be 4 or 8.

5.5.15. port config - Burst

Set the number of packets per burst:

port config all burst (value)

This is equivalent to the –burst command-line option.

5.5.16. port config - Threshold

Set thresholds for TX/RX queues:

port config all (threshold) (value)

Where the threshold type can be:

  • txpt: Set the prefetch threshold register of the TX rings, 0 <= value <= 255.
  • txht: Set the host threshold register of the TX rings, 0 <= value <= 255.
  • txwt: Set the write-back threshold register of the TX rings, 0 <= value <= 255.
  • rxpt: Set the prefetch threshold register of the RX rings, 0 <= value <= 255.
  • rxht: Set the host threshold register of the RX rings, 0 <= value <= 255.
  • rxwt: Set the write-back threshold register of the RX rings, 0 <= value <= 255.
  • txfreet: Set the transmit free threshold of the TX rings, 0 <= value <= txd.
  • rxfreet: Set the transmit free threshold of the RX rings, 0 <= value <= rxd.
  • txrst: Set the transmit RS bit threshold of TX rings, 0 <= value <= txd. These threshold options are also available from the command-line.

5.6. Flow Director Functions

The Flow Director works in receive mode to identify specific flows or sets of flows and route them to specific queues.

Two types of filtering are supported which are referred to as Perfect Match and Signature filters:

  • Perfect match filters. The hardware checks a match between the masked fields of the received packets and the programmed filters.
  • Signature filters. The hardware checks a match between a hash-based signature of the masked fields of the received packet.

The Flow Director filters can match the following fields in a packet:

  • Source IP and destination IP addresses.
  • Source port and destination port numbers (for UDP and TCP packets).
  • IPv4/IPv6 and UDP/ TCP/SCTP protocol match.
  • VLAN header.
  • Flexible 2-byte tuple match anywhere in the first 64 bytes of the packet.

The Flow Director can also mask out parts of all of these fields so that filters are only applied to certain fields or parts of the fields. For example it is possible to mask out sub-nets of IP addresses or to ignore VLAN headers.

In the following sections, several common parameters are used in the Flow Director filters. These are explained below:

  • src: A pair of source address values. The source IP, in IPv4 or IPv6 format, and the source port:

    src 192.168.0.1 1024

    src 2001:DB8:85A3:0:0:8A2E:370:7000 1024

  • dst: A pair of destination address values. The destination IP, in IPv4 or IPv6 format, and the destination port.

  • flexbytes: A 2-byte tuple to be matched within the first 64 bytes of a packet.

The offset where the match occurs is set by the –pkt-filter-flexbytes-offset command-line parameter and is counted from the first byte of the destination Ethernet MAC address. The default offset is 0xC bytes, which is the “Type” word in the MAC header. Typically, the flexbyte value is set to 0x0800 to match the IPv4 MAC type or 0x86DD to match IPv6. These values change when a VLAN tag is added.

  • vlan: The VLAN header to match in the packet.
  • queue: The index of the RX queue to route matched packets to.
  • soft: The 16-bit value in the MBUF flow director ID field for RX packets matching the filter.

5.6.1. add_signature_filter

Add a signature filter:

# Command is displayed on several lines for clarity.

add_signature_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id) queue (queue_id)

5.6.2. upd_signature_filter

Update a signature filter:

# Command is displayed on several lines for clarity.

upd_signature_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id) queue (queue_id)

5.6.3. rm_signature_filter

Remove a signature filter:

# Command is displayed on several lines for clarity.

rm_signature_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id)

5.6.4. add_perfect_filter

Add a perfect filter:

# Command is displayed on several lines for clarity.

add_perfect_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id) queue (queue_id) soft (soft_id)

5.6.5. upd_perfect_filter

Update a perfect filter:

# Command is displayed on several lines for clarity.

upd_perfect_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id) queue (queue_id)

5.6.6. rm_perfect_filter

Remove a perfect filter:

rm_perfect_filter (port_id) (ip|udp|tcp|sctp)

src (src_ip_address) (src_port)

dst (dst_ip_address) (dst_port)

flexbytes (flexbytes_values)

vlan (vlan_id) soft (soft_id)

5.6.7. set_masks_filter

Set IPv4 filter masks:

# Command is displayed on several lines for clarity.

set_masks_filter (port_id) only_ip_flow (0|1)

src_mask (ip_src_mask) (src_port_mask)

dst_mask (ip_dst_mask) (dst_port_mask)

flexbytes (0|1) vlan_id (0|1) vlan_prio (0|1)

5.6.8. set_ipv6_masks_filter

Set IPv6 filter masks:

# Command is displayed on several lines for clarity.

set_ipv6_masks_filter (port_id) only_ip_flow (0|1)

src_mask (ip_src_mask) (src_port_mask)

dst_mask (ip_dst_mask) (dst_port_mask)

flexbytes (0|1) vlan_id (0|1) vlan_prio (0|1)

compare_dst (0|1)

5.8. Register Functions

The Register functions can be used to read from and write to registers on the network card referenced by a port number. This is mainly useful for debugging purposes. Reference should be made to the appropriate datasheet for the network card for details on the register addresses and fields that can be accessed.

5.8.1. read reg

Display the value of a port register:

read reg (port_id) (address)

For example, to examine the Flow Director control register (FDIRCTL, 0x0000EE000) on an Intel® 82599 10 GbE Controller:

testpmd> read reg 0 0xEE00
port 0 PCI register at offset 0xEE00: 0x4A060029 (1241907241)

5.8.2. read regfield

Display a port register bit field:

read regfield (port_id) (address) (bit_x) (bit_y)

For example, reading the lowest two bits from the register in the example above:

testpmd> read regfield 0 0xEE00 0 1
port 0 PCI register at offset 0xEE00: bits[0, 1]=0x1 (1)

5.8.3. read regbit

Display a single port register bit:

read regbit (port_id) (address) (bit_x)

For example, reading the lowest bit from the register in the example above:

testpmd> read regbit 0 0xEE00 0
port 0 PCI register at offset 0xEE00: bit 0=1

5.8.4. write reg

Set the value of a port register:

write reg (port_id) (address) (value)

For example, to clear a register:

testpmd> write reg 0 0xEE00 0x0
port 0 PCI register at offset 0xEE00: 0x00000000 (0)

5.8.5. write regfield

Set bit field of a port register:

write regfield (port_id) (address) (bit_x) (bit_y) (value)

For example, writing to the register cleared in the example above:

testpmd> write regfield 0 0xEE00 0 1 2
port 0 PCI register at offset 0xEE00: 0x00000002 (2)

5.8.6. write regbit

Set single bit value of a port register:

write regbit (port_id) (address) (bit_x) (value)

For example, to set the high bit in the register from the example above:

testpmd> write regbit 0 0xEE00 31 1
port 0 PCI register at offset 0xEE00: 0x8000000A (2147483658)

5.9. Filter Functions

This section details the available filter functions that are available.

5.9.1. add_ethertype_filter

Add a L2 Ethertype filter, which identify packets by their L2 Ethertype mainly assign them to a receive queue.

add_ethertype_filter (port_id) ethertype (eth_value) priority (enable|disable) (pri_value) queue (queue_id) index (idx)

The available information parameters are:

  • port_id: the port which the Ethertype filter assigned on.
  • eth_value: the EtherType value want to match, for example 0x0806 for ARP packet. 0x0800 (IPv4) and 0x86DD (IPv6) are invalid.
  • enable: user priority participates in the match.
  • disable: user priority doesn’t participate in the match.
  • pri_value: user priority value that want to match.
  • queue_id : The receive queue associated with this EtherType filter
  • index: the index of this EtherType filter

Example:

testpmd> add_ethertype_filter 0 ethertype 0x0806 priority disable 0 queue 3 index 0
Assign ARP packet to receive queue 3

5.9.2. remove_ethertype_filter

Remove a L2 Ethertype filter

remove_ethertype_filter (port_id) index (idx)

5.9.3. get_ethertype_filter

Get and display a L2 Ethertype filter

get_ethertype_filter (port_id) index (idx)

Example:

testpmd> get_ethertype_filter 0 index 0

filter[0]:
    ethertype: 0x0806
    priority: disable, 0
    queue: 3

5.9.4. add_2tuple_filter

Add a 2-tuple filter, which identify packets by specific protocol and destination TCP/UDP port and forwards packets into one of the receive queues.

add_2tuple_filter (port_id) protocol (pro_value) (pro_mask) dst_port (port_value) (port_mask) flags (flg_value) priority (prio_value) queue (queue_id) index (idx)

The available information parameters are:

  • port_id: the port which the 2-tuple filter assigned on.
  • pro_value: IP L4 protocol
  • pro_mask: protocol participates in the match or not, 1 means participate
  • port_value: destination port in L4.
  • port_mask: destination port participates in the match or not, 1 means participate.
  • flg_value: TCP control bits. The non-zero value is invalid, when the pro_value is not set to 0x06 (TCP).
  • prio_value: the priority of this filter.
  • queue_id: The receive queue associated with this 2-tuple filter
  • index: the index of this 2-tuple filter

Example:

testpmd> add_2tuple_filter 0 protocol 0x06 1 dst_port 32 1 flags 0x02 priority 3 queue 3 index 0

5.9.5. remove_2tuple_filter

Remove a 2-tuple filter

remove_2tuple_filter (port_id) index (idx)

5.9.6. get_2tuple_filter

Get and display a 2-tuple filter

get_2tuple_filter (port_id) index (idx)

Example:

testpmd> get_2tuple_filter 0 index 0

filter[0]:
    Destination Port: 0x0020 mask: 1
    protocol: 0x06 mask:1 tcp_flags: 0x02
    priority: 3   queue: 3

5.9.7. add_5tuple_filter

Add a 5-tuple filter, which consists of a 5-tuple (protocol, source and destination IP addresses, source and destination TCP/UDP/SCTP port) and routes packets into one of the receive queues.

add_5tuple_filter (port_id) dst_ip (dst_address) src_ip (src_address) dst_port (dst_port_value) src_port (src_port_value) protocol (protocol_value) mask (mask_value) flags (flags_value) priority (prio_value) queue (queue_id) index (idx)

The available information parameters are:

  • port_id: the port which the 5-tuple filter assigned on.
  • dst_address: destination IP address.
  • src_address: source IP address.
  • dst_port_value: TCP/UDP destination port.
  • src_port_value: TCP/UDP source port.
  • protocol_value: L4 protocol.
  • mask_value: participates in the match or not by bit for field above, 1b means participate
  • flags_value: TCP control bits. The non-zero value is invalid, when the protocol_value is not set to 0x06 (TCP).
  • prio_value: the priority of this filter.
  • queue_id: The receive queue associated with this 5-tuple filter.
  • index: the index of this 5-tuple filter

Example:

testpmd> add_5tuple_filter 1 dst_ip 2.2.2.5 src_ip 2.2.2.4 dst_port 64 src_port 32 protocol 0x06 mask 0x1F flags 0x0 priority 3 queue 3 index 0

5.9.8. remove_5tuple_filter

Remove a 5-tuple filter

remove_5tuple_filter (port_id) index (idx)

5.9.9. get_5tuple_filter

Get and display a 5-tuple filter

get_5tuple_filter (port_id) index (idx)

Example:

testpmd> get_5tuple_filter 1 index 0

filter[0]:
    Destination IP: 0x02020205 mask: 1
    Source IP: 0x02020204 mask: 1
    Destination Port: 0x0040 mask: 1
    Source Port: 0x0020 mask: 1
    protocol: 0x06 mask: 1
    priority: 3 flags: 0x00 queue: 3

5.9.10. add_syn_filter

Add SYN filter, which can forward TCP packets whose SYN flag is set into a separate queue.

add_syn_filter (port_id) priority (high|low) queue (queue_id)

The available information parameters are:

  • port_id: the port which the SYN filter assigned on.
  • high: this SYN filter has higher priority than other filters.
  • low: this SYN filter has lower priority than other filters.
  • queue_id: The receive queue associated with this SYN filter

Example:

testpmd> add_syn_filter 0 priority high queue 3,

5.9.11. remove_syn_filter

Remove SYN filter

remove_syn_filter (port_id)

5.9.12. get_syn_filter

Get and display SYN filter

get_syn_filter (port_id)

Example:

testpmd> get_syn_filter 0

syn filter: on, priority: high, queue: 3

5.9.13. add_flex_filter

Add a Flex filter, which recognizes any arbitrary pattern within the first 128 bytes of the packet and routes packets into one of the receive queues.

add_flex_filter (port_id) len (len_value) bytes (bytes_string) mask (mask_value) priority (prio_value) queue (queue_id) index (idx)

The available information parameters are:

  • port_id: the port which the Flex filter assigned on.
  • len_value: filter length in byte, no greater than 128.
  • bytes_string: a sting in format of octal, means the value the flex filter need to match.
  • mask_value: a sting in format of octal, bit 1 means corresponding byte in DWORD participates in the match.
  • prio_value: the priority of this filter.
  • queue_id: The receive queue associated with this Flex filter.
  • index: the index of this Flex filter

Example:

testpmd> add_flex_filter 0 len 16 bytes 0x00000000000000000000000008060000 mask 000C priority 3 queue 3 index 0

Assign a packet whose 13th and 14th bytes are 0x0806 to queue 3.

5.9.14. remove_flex_filter

Remove a Flex filter

remove_flex_filter (port_id) index (idx)

5.9.15. get_flex_filter

Get and display a Flex filter

get_flex_filter (port_id) index (idx)

Example:

testpmd> get_flex_filter 0 index 0

filter[0]:

    length: 16

    dword[]: 0x00000000 00000000 00000000 08060000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000

    mask[]:
0b0000000000001100000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000

    priority: 3   queue: 3