The Linux Kernel
5.7.0
  • The Linux kernel user’s and administrator’s guide
  • Kernel Build System
  • The Linux kernel firmware guide
  • The Linux kernel user-space API guide
  • Working with the kernel development community
  • Development tools for the kernel
  • How to write kernel documentation
  • Kernel Hacking Guides
  • Linux Tracing Technologies
  • Kernel Maintainer Handbook
  • fault-injection
  • Kernel Livepatching
  • The Linux driver implementer’s API guide
  • Core API Documentation
  • locking
  • Accounting
  • Block
  • cdrom
  • Linux CPUFreq - CPU frequency and voltage scaling code in the Linux(TM) kernel
  • Integrated Drive Electronics (IDE)
  • Frame Buffer
  • fpga
  • Human Interface Devices (HID)
  • I2C/SMBus Subsystem
  • Industrial I/O
  • ISDN
  • InfiniBand
  • LEDs
  • Linux Media Subsystem Documentation
  • NetLabel
  • Linux Networking Documentation
    • netdev FAQ
    • AF_XDP
    • Bare UDP Tunnelling Module Documentation
    • batman-adv
    • SocketCAN - Controller Area Network
    • The UCAN Protocol
    • Vendor Device Drivers
    • Distributed Switch Architecture
    • Linux Devlink Documentation
      • Interface documentation
      • Driver-specific documentation
        • bnxt devlink support
        • ionic devlink support
        • ice devlink support
        • mlx4 devlink support
        • mlx5 devlink support
        • mlxsw devlink support
        • mv88e6xxx devlink support
        • netdevsim devlink support
        • nfp devlink support
        • qed devlink support
        • ti-cpsw-switch devlink support
    • Netlink interface for ethtool
    • IEEE 802.15.4 Developer’s Guide
    • J1939 Documentation
    • Linux Networking and Network Devices APIs
    • Z8530 Programming Guide
    • MSG_ZEROCOPY
    • FAILOVER
    • Net DIM - Generic Network Dynamic Interrupt Moderation
    • NET_FAILOVER
    • PHY Abstraction Layer
    • phylink
    • IP-Aliasing
    • Ethernet Bridging
    • SNMP counter
    • Checksum Offloads
    • Segmentation Offloads
    • Scaling in the Linux Networking Stack
    • Kernel TLS
    • Kernel TLS offload
    • Linux NFC subsystem
    • Netdev private dataroom for 6lowpan interfaces
  • pcmcia
  • Power Management
  • TCM Virtual Device
  • timers
  • Serial Peripheral Interface (SPI)
  • 1-Wire Subsystem
  • Linux Watchdog Support
  • Linux Virtualization Support
  • The Linux Input Documentation
  • Linux Hardware Monitoring
  • Linux GPU Driver Developer’s Guide
  • Security Documentation
  • Linux Sound Subsystem Documentation
  • Linux Kernel Crypto API
  • Filesystems in the Linux kernel
  • Linux Memory Management Documentation
  • BPF Documentation
  • USB support
  • Linux PCI Bus Subsystem
  • Linux SCSI Subsystem
  • Assorted Miscellaneous Devices Documentation
  • Linux Scheduler
  • MHI
  • Assembler Annotations
  • ARM Architecture
  • ARM64 Architecture
  • IA-64 Architecture
  • m68k Architecture
  • MIPS-specific Documentation
  • Linux on the Nios II architecture
  • OpenRISC Architecture
  • PA-RISC Architecture
  • powerpc
  • RISC-V architecture
  • s390 Architecture
  • SuperH Interfaces Guide
  • Sparc Architecture
  • x86-specific Documentation
  • Xtensa Architecture
  • ext4 Data Structures and Algorithms
  • Translations
The Linux Kernel
  • Docs »
  • Linux Networking Documentation »
  • Linux Devlink Documentation »
  • mlx5 devlink support
  • View page source

mlx5 devlink support¶

This document describes the devlink features implemented by the mlx5 device driver.

Parameters¶

Generic parameters implemented¶
Name Mode
enable_roce driverinit

The mlx5 driver also implements the following driver-specific parameters.

Driver-specific parameters implemented¶
Name Type Mode Description
flow_steering_mode string runtime

Controls the flow steering mode of the driver

  • dmfs Device managed flow steering. In DMFS mode, the HW steering entities are created and managed through firmware.
  • smfs Software managed flow steering. In SMFS mode, the HW steering entities are created and manage through the driver without firmware intervention.
fdb_large_groups u32 driverinit

Control the number of large groups (size > 1) in the FDB table.

  • The default value is 15, and the range is between 1 and 1024.

The mlx5 driver supports reloading via DEVLINK_CMD_RELOAD

Info versions¶

The mlx5 driver reports the following versions

devlink info versions implemented¶
Name Type Description
fw.psid fixed Used to represent the board id of the device.
fw.version stored, running Three digit major.minor.subminor firmware version number.
Next Previous

© Copyright The kernel development community

Built with Sphinx using a theme provided by Read the Docs.