20. DPDK Release 19.08
20.1. New Features
EAL will now pick IOVA as VA mode as the default in most cases.
Previously, the preferred default IOVA mode was selected to be IOVA as PA. The behavior has now been changed to handle IOVA mode detection in a more complex manner, and will default to IOVA as VA in most cases.
Added MCS lock.
MCS lock provides scalability by spinning on a CPU/thread local variable which avoids expensive cache bouncing. It provides fairness by maintaining a list of acquirers and passing the lock to each CPU/thread in the order they acquired the lock.
Updated the EAL Pseudo-random Number Generator.
The
lrand48()
basedrte_rand()
function is replaced with a DPDK-native combined Linear Feedback Shift Register (LFSR) pseudo-random number generator (PRNG).This new PRNG implementation is multi-thread safe, provides higher-quality pseudo-random numbers (including full 64 bit support) and improved performance.
In addition,
<rte_random.h>
is extended with a new functionrte_rand_max()
which supplies unbiased, bounded pseudo-random numbers.Updated the Broadcom bnxt PMD.
Updated the Broadcom bnxt PMD. The major enhancements include:
Performance optimizations in non-vector Tx path.
Added support for SSE vector mode.
Updated HWRM API to version 1.10.0.91.
Added support for Broadcom NetXtreme-E BCM57500 Ethernet controllers.
Added support to the Broadcom bnxt PMD for the BCM57500 (a.k.a. “Thor”) family of Ethernet controllers. These controllers support link speeds up to 200Gbps, 50G PAM-4, and PCIe 4.0.
Added Huawei hinic PMD.
Added the new
hinic
net driver for Huawei Intelligent PCIE Network Adapters based on the Huawei Ethernet Controller Hi1822. See the HINIC Poll Mode Driver guide for more details on this new driver.Updated the Intel ice driver.
Updated the Intel ice driver with new features and improvements, including:
Enabled Tx outer/inner L3/L4 checksum offload.
Enabled generic filter framework and supported switch filter.
Supported UDP tunnel port add.
Updated the Intel i40e driver.
Updated tje Intel i40e driver with new features and improvements, including:
Added support for MARK + RSS action in rte_flow (non-vector RX path only)
Updated Mellanox mlx5 driver.
Updated Mellanox mlx5 driver with new features and improvements, including:
Updated the packet header modification feature. Added support of TCP header sequence number and acknowledgment number modification.
Added support for match on ICMP/ICMP6 code and type.
Added support for matching on GRE’s key and C,K,S present bits.
Added support for IP-in-IP tunnel.
Accelerated flows with count action creation and destroy.
Accelerated flows counter query.
Improved Tx datapath performance with enabled HW offloads.
Added support for LRO.
Updated Solarflare network PMD.
Updated the Solarflare
sfc_efx
driver with changes including:Added support for Rx interrupts.
Added memif PMD.
Added a new Shared Memory Packet Interface (
memif
) PMD. See the Memif Poll Mode Driver guide for more details on this new driver.Updated the AF_XDP PMD.
Updated the AF_XDP PMD. The new features include:
Enabled zero copy through mbuf’s external memory mechanism to achieve higher performance.
Added multi-queue support to allow one af_xdp vdev with multiple netdev queues.
Enabled “need_wakeup” feature which can provide efficient support for the use case where the application and driver executing on the same core.
Enabled infinite Rx in the PCAP PMD.
Added an infinite Rx feature to the PCAP PMD which allows packets in the Rx PCAP to be received repeatedly at a high rate. This can be useful for quick performance testing of DPDK apps.
Enabled receiving no packet in the PCAP PMD.
Added function to allow users to run the PCAP PMD without receiving any packets on PCAP Rx. When the function is called, a dummy queue is created for each Tx queue argument passed.
Added a FPGA_LTE_FEC bbdev PMD.
Added a new
fpga_lte_fec
bbdev driver for the Intel® FPGA PAC (Programmable Acceleration Card) N3000. See the Intel(R) FPGA LTE FEC Poll Mode Driver BBDEV guide for more details on this new driver.Updated the TURBO_SW bbdev PMD.
Updated the
turbo_sw
bbdev driver with changes including:Added option to build the driver with or without dependency of external SDK libraries.
Added support for 5GNR encode/decode operations.
Updated the Intel QuickAssist Technology (QAT) symmetric crypto PMD.
Added support for digest-encrypted cases where digest is appended to the data.
Added the Intel QuickData Technology PMD.
Added a PMD for the Intel® QuickData Technology, part of Intel® I/O Acceleration Technology (Intel I/OAT), which allows data copies to be done by hardware instead of via software, reducing cycles spent copying large blocks of data in applications.
Added Marvell OCTEON TX2 drivers.
Added the new
ethdev
,eventdev
,mempool
,eventdev Rx adapter
,eventdev Tx adapter
,eventdev Timer adapter
andrawdev DMA
drivers for various HW co-processors available inOCTEON TX2
SoC.See
platform/octeontx2
and driver information:nics/octeontx2
mempool/octeontx2
eventdevs/octeontx2
rawdevs/octeontx2_dma
Introduced the Intel NTB PMD.
Added a PMD for Intel NTB (Non-transparent Bridge). This PMD implements a handshake between two separate hosts and can share local memory for peer host to directly access.
Updated the IPSec library and IPsec Security Gateway application.
Added the following features to
librte_ipsec
. Corresponding changes are also added in theipsec-secgw
sample application.ECN and DSCP field header reconstruction as per RFC4301.
Transport mode with IPv6 extension headers.
Support packets with multiple segments.
Updated telemetry library for global metrics support.
Updated
librte_telemetry
to fetch the global metrics from thelibrte_metrics
library.Added new telemetry mode for l3fwd-power application.
Added a telemetry mode to the
l3fwd-power
application to report application level busyness, empty and full polls ofrte_eth_rx_burst()
.Updated the pdump application.
Add support for pdump to exit with primary process.
Updated test-compress-perf tool application.
Added a multiple cores feature to the compression perf tool application.
20.2. Removed Items
Removed KNI ethtool,
CONFIG_RTE_KNI_KMOD_ETHTOOL
, support.build: armv8 crypto extension is disabled.
20.3. API Changes
The
rte_mem_config
structure has been made private. New accessorrte_mcfg_*
functions were introduced to provide replacement for direct access to the shared mem config.The network structures, definitions and functions have been prefixed by
rte_
to resolve conflicts with libc headers.malloc: The function
rte_malloc_set_limit()
was never implemented. It is deprecated and will be removed in a future release.cryptodev: the
uint8_t *data
member of thekey
structure in the xforms structure (rte_crypto_cipher_xform
,rte_crypto_auth_xform
, andrte_crypto_aead_xform
) have been changed toconst uint8_t *data
.eventdev: No longer marked as experimental.
The eventdev functions are no longer marked as experimental, and have become part of the normal DPDK API and ABI. Any future ABI changes will be announced at least one release before the ABI change is made. There are no ABI breaking changes planned.
ip_frag: The IP fragmentation library converts input mbuf into fragments using input MTU size via the
rte_ipv4_fragment_packet()
interface. Once fragmentation is done, eachmbuf->ol_flags
are set to enable IP checksum H/W offload irrespective of the platform capability. Cleared IP checksum H/W offload flag from the library. The application must set this flag if it is supported by the platform and application wishes to use it.ip_frag: IP reassembly library converts the list of fragments into a reassembled packet via
rte_ipv4_frag_reassemble_packet()
interface. Once reassembly is done,mbuf->ol_flags
are set to enable IP checksum H/W offload irrespective of the platform capability. Cleared IP checksum H/W offload flag from the library. The application must set this flag if it is supported by the platform and application wishes to use it.sched: Macros
RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS
andRTE_SCHED_PIPE_PROFILES_PER_PORT
are removed for flexible configuration of pipe traffic classes and their queues size, and for runtime configuration of the maximum number of pipe profiles, respectively. In addition, thewrr_weights
field of structrte_sched_pipe_params
is modified to be used only for best-effort tc, and theqsize
field of structrte_sched_port_params
is changed to allow different sizes for each queue.
20.4. ABI Changes
eventdev: Event based Rx adapter callback
The mbuf pointer array in the event eth Rx adapter callback has been replaced with an event array. Using an event array allows the application to change attributes of the events enqueued by the SW adapter.
The callback can drop packets and populate a callback argument with the number of dropped packets. Add a Rx adapter stats field to keep track of the total number of dropped packets.
cryptodev: New member in
rte_cryptodev_config
to allow applications to disable features supported by the crypto device. Only the following features would be allowed to be disabled this way,RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO
.RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO
.RTE_CRYPTODEV_FF_SECURITY
.
Disabling unused features would facilitate efficient usage of HW/SW offload.
bbdev: New operations and parameters have been added to support new 5GNR operations. The bbdev ABI is still kept experimental.
rawdev: The driver names have been changed to
librte_rawdev_*
. Now they all have the same prefix, and same name with make and meson builds.
20.6. Known Issues
Unsuitable IOVA mode may be picked as the default.
Not all kernel drivers and not all devices support all IOVA modes. EAL will attempt to pick a reasonable default based on a number of factors, but there may be cases where the default is unsuitable.
It is recommended to use the –iova-mode command-line parameter if the default is not suitable.
20.7. Tested Platforms
Intel(R) platforms with Intel(R) NICs combinations
CPU
Intel(R) Atom(TM) CPU C3758 @ 2.20GHz
Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz
Intel(R) Xeon(R) CPU D-1553N @ 2.30GHz
Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz
Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz
Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz
Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz
Intel(R) Xeon(R) Platinum 8280M CPU @ 2.70GHz
OS:
CentOS 7.6
Fedora 30
FreeBSD 12.0
Red Hat Enterprise Linux Server release 8.0
Red Hat Enterprise Linux Server release 7.6
Suse12SP3
Ubuntu 16.04
Ubuntu 16.10
Ubuntu 18.04
Ubuntu 19.04
NICs:
Intel(R) 82599ES 10 Gigabit Ethernet Controller
Firmware version: 0x61bf0001
Device id (pf/vf): 8086:10fb / 8086:10ed
Driver version: 5.6.1 (ixgbe)
Intel(R) Corporation Ethernet Connection X552/X557-AT 10GBASE-T
Firmware version: 0x800003e7
Device id (pf/vf): 8086:15ad / 8086:15a8
Driver version: 5.1.0 (ixgbe)
Intel Corporation Ethernet Controller 10G X550T
Firmware version: 0x80000482
Device id (pf): 8086:1563
Driver version: 5.6.1 (ixgbe)
Intel(R) Ethernet Converged Network Adapter X710-DA4 (4x10G)
Firmware version: 7.00 0x80004cdb
Device id (pf/vf): 8086:1572 / 8086:154c
Driver version: 2.9.21 (i40e)
Intel(R) Corporation Ethernet Connection X722 for 10GbE SFP+ (4x10G)
Firmware version: 4.10 0x80001a3c
Device id (pf/vf): 8086:37d0 / 8086:37cd
Driver version: 2.9.21 (i40e)
Intel(R) Ethernet Converged Network Adapter XXV710-DA2 (2x25G)
Firmware version: 7.00 0x80004cf8
Device id (pf/vf): 8086:158b / 8086:154c
Driver version: 2.9.21 (i40e)
Intel(R) Ethernet Converged Network Adapter XL710-QDA2 (2X40G)
Firmware version: 7.00 0x80004c97
Device id (pf/vf): 8086:1583 / 8086:154c
Driver version: 2.9.21 (i40e)
Intel(R) Corporation I350 Gigabit Network Connection
Firmware version: 1.63, 0x80000cbc
Device id (pf/vf): 8086:1521 / 8086:1520
Driver version: 5.4.0-k (igb)
Intel Corporation I210 Gigabit Network Connection
Firmware version: 3.25, 0x800006eb
Device id (pf): 8086:1533
Driver version: 5.4.0-k(igb)
Intel(R) platforms with Mellanox(R) NICs combinations
CPU:
Intel(R) Xeon(R) Gold 6154 CPU @ 3.00GHz
Intel(R) Xeon(R) CPU E5-2697A v4 @ 2.60GHz
Intel(R) Xeon(R) CPU E5-2697 v3 @ 2.60GHz
Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz
Intel(R) Xeon(R) CPU E5-2640 @ 2.50GHz
Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
OS:
Red Hat Enterprise Linux Server release 7.6 (Maipo)
Red Hat Enterprise Linux Server release 7.5 (Maipo)
Red Hat Enterprise Linux Server release 7.4 (Maipo)
Red Hat Enterprise Linux Server release 7.3 (Maipo)
Red Hat Enterprise Linux Server release 7.2 (Maipo)
Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
SUSE Linux Enterprise Server 15
OFED:
MLNX_OFED 4.6-1.0.1.1
MLNX_OFED 4.6-4.1.2.0
NICs:
Mellanox(R) ConnectX(R)-3 Pro 40G MCX354A-FCC_Ax (2x40G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1007
Firmware version: 2.42.5000
Mellanox(R) ConnectX(R)-4 10G MCX4111A-XCAT (1x10G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 10G MCX4121A-XCAT (2x10G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 25G MCX4111A-ACAT (1x25G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 25G MCX4121A-ACAT (2x25G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 40G MCX4131A-BCAT/MCX413A-BCAT (1x40G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 40G MCX415A-BCAT (1x40G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 50G MCX4131A-GCAT/MCX413A-GCAT (1x50G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 50G MCX414A-BCAT (2x50G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 50G MCX415A-GCAT/MCX416A-BCAT/MCX416A-GCAT (2x50G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 50G MCX415A-CCAT (1x100G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 100G MCX416A-CCAT (2x100G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1013
Firmware version: 12.25.6406 and above
Mellanox(R) ConnectX(R)-4 Lx 10G MCX4121A-XCAT (2x10G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1015
Firmware version: 14.25.6406 and above
Mellanox(R) ConnectX(R)-4 Lx 25G MCX4121A-ACAT (2x25G)
Host interface: PCI Express 3.0 x8
Device ID: 15b3:1015
Firmware version: 14.25.6406 and above
Mellanox(R) ConnectX(R)-5 100G MCX556A-ECAT (2x100G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1017
Firmware version: 16.25.6406 and above
Mellanox(R) ConnectX(R)-5 Ex EN 100G MCX516A-CDAT (2x100G)
Host interface: PCI Express 4.0 x16
Device ID: 15b3:1019
Firmware version: 16.25.6406 and above
Mellanox(R) BlueField SmartNIC
Mellanox(R) BlueField SmartNIC MT416842 (2x25G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:a2d2
Firmware version: 18.25.6600
SoC Arm cores running OS:
CentOS Linux release 7.5.1804 (AltArch)
MLNX_OFED 4.6-3.5.8.0
DPDK application running on Arm cores inside SmartNIC
IBM Power 9 platforms with Mellanox(R) NICs combinations
CPU:
POWER9 2.2 (pvr 004e 1202) 2300MHz
OS:
Ubuntu 18.04.1 LTS (Bionic Beaver)
NICs:
Mellanox(R) ConnectX(R)-5 100G MCX556A-ECAT (2x100G)
Host interface: PCI Express 3.0 x16
Device ID: 15b3:1017
Firmware version: 16.25.6406
OFED:
MLNX_OFED 4.6-4.1.2.0
ARMv8 SoC combinations from Marvell (with integrated NICs)
SoC:
CN83xx, CN96xx, CNF95xx, CN93xx
OS (Based on Marvell OCTEON TX SDK 10.0):
Arch Linux
Buildroot 2018.11
Ubuntu 16.04.1 LTS
Ubuntu 16.10
Ubuntu 18.04.1
Ubuntu 19.04