在RHEL中设置infiniband ib0

Question

在一些安装了卡的服务器上运行RHEL7.9。我已经从dvd中安装了RHEL7.9，并选择了带有gui的服务器以及Infiniband支持和一些其他项目(底部是5)。

所以使用Application - System Tools - Settings - Network，这里是gui的照片。

我连接到了，但是如果我做了一个ip a，它会显示ib0 state DOWN。这是在一个简单的局域网上，在下面的图片中，Proxy = None和IPv6 Settings = ignore没有为ipv4设置设置网关值，但我认为这不重要。

• 我错过了什么或者没有做什么？
• 我需要使用MLNX_OFED_LINUX-5.5-1.0.3.2-rhel7.9-x86_64.iso吗?如果是的话，它的哪些部分？
• 我在以前的RHEL安装下运行了MLNX的mlnxofedinstall，并使ib0网络正常工作，但我认为iso的mlnxofedinstall正在删除现有的rdma内容，并导致了我的NFS+RDMA问题，所以我有点迷路了。
• 更新:在我的4台服务器中的1台上，我运行了mlnxofedinstall --with-nfsrdma，它运行了一个操作系统，现在我在所有的服务器infiniband上都有绿色链接灯。是操作系统做到了吗？但是结果，我在服务器上失去了rdma.service，我运行了mlnxofedinstall on，然后对使nfs+rdma正常工作的改变进行了核武器，这是我真正想要的。

Usage: ./mlnxofedinstall [OPTIONS]

Installation control:
    --force              Force installation
    --tmpdir             Change tmp directory. Default: /tmp
    -k|--kernel <version>
                         Default on this system: 3.10.0-1160.49.1.el7.x86_64
    -s|--kernel-sources <path>
                         Default on this system: /lib/modules/3.10.0-1160.49.1.el7.x86_64/build
    -U|--update          Update installed version
    --with-32bit         Install 32-bit libraries. Relevant for x86_64 platforms
    --without-32bit      Skip 32-bit libraries installation (Default). Relevant for x86_64 platforms
    --distro             Set Distro name for the running OS (e.g: rhel6.5, sles11sp3). Default: Use auto-detection
    --skip-distro-check  Do not check MLNX_OFED_LINUX vs Distro matching
    --without-depcheck   Run the installation without verifying that all required Distro's packages are installed
    --check-deps-only    Check for missing required Distro's packages and exit
    --print-distro       Print distribution name and exit

    --add-kernel-support
                         Add kernel support (Run mlnx_add_kernel_support.sh) and install it
    --add-kernel-support-build-only
                         Add kernel support (Run mlnx_add_kernel_support.sh) and exit

    --kernel-extra-args '<args>'
                         pass <args> to kernel configure script (single paraeter, space separated)
                         - Pass it along with --add-kernel-support

    --kmp                Install kernel RPMs with KMP support if available
                         - Enabled by default with official MLNX_OFED_LINUX releases
                         - Disabled by default if new MLNX_OFED_LINUX was created with mlnx_add_kernel_support.sh
                         - Passing it along with --add-kernel-support will pass --kmp to mlnx_add_kernel_support.sh
    --disable-kmp        Install kernel RPMs without KMP support if available
                         - Enabled by default if new MLNX_OFED_LINUX was created with mlnx_add_kernel_support.sh
    --skip-kmp-verify    Do not check if the KMP rpms are compatiable with the target kernel
    --speed-up-kmp       Speed up KMP RPMs installation by skipping %post section and running the required operations once for all KMPs

    --umad-dev-rw        Grant non root users read/write permission for umad devices instead of default
    --umad-dev-na        Prevent from non root users read/write access for umad devices. Overrides '--umad-dev-rw'
    --enable-mlnx_tune   Enable Running the mlnx_tune utility
    --enable-affinity    Run mlnx_affinity script upon boot
    --disable-affinity   Disable mlnx_affinity script (Default)
    --skip-unsupported-devices-check
                         Don't abort if system has an older, unsupported card
    --enable-opensm      Run opensm upon boot

    --package-install-options
                         RPM install options to use when installing RPM packages (comma separated list)
    --pre-install-<package> <path to script>
                         Run given script before given package's install
    --post-install-<package> <path to script>
                         Run given script after given package's install

Firmware update control:
    --without-fw-update  Skip firmware update
    --fw-update-only     Update firmware. Skip driver installation
    --force-fw-update    Force firmware update
    --fw-image-dir       Firmware images directory to use instead of default package content

Package selection:
    -c|--config <packages config_file>
                         Example of the config file can be found under docs
    --all                Install all available packages
    --bluefield          Install BlueField packages
    --hpc                Install minimum packages required for HPC
    --basic              Install minimum packages for basic functionality
    --dpdk               Install minimum packages required for DPDK
    --ovs-dpdk           Install DPDK and OVS packages
    --vma                Install minimum packages required for VMA
    --xlio                Install minimum packages required for XLIO
    --guest              Install minimum packages required by guest OS
    --hypervisor         Install minimum packages required by hypervisor OS
    --with-fabric-collector
                         Enable installing fabric-collector package
    --with-nvmf          Enable NVMEoF support
    --with-nfsrdma       Enable NFSoRDMA support
    --without-nfsrdma    Disable NFSoRDMA support (Default)

Extra package filtering:
    --kernel-only        Install kernel space packages only
    --user-space-only    Filter selected packages and install only User Space packages
    --without-<package>  Do not install package
    --with-<package>     Force installing package

Miscellaneous:
    -h|--help            Display this help message and exit
    --post-start-delay <sec>
                         Set openibd POST_START_DELAY parameter in seconds. (Default 0)
    -p|--print-available Print available packages for current platform
                     And create corresponding ofed.conf file

Answer 1

解决我的问题的方法是在安装时选择Infiniband Support，在从dvd重新安装RHEL 7之后。我从来没有选择过，我认为我可以安装任何我需要后，事实。

似乎有两种途径可以选择，来自redhat的Infiniband支持包，或安装MLNX_OFED_LINUX-5.5-1.0.3.2-rhel7.9-x86_64.iso.

我成功地做了红帽子路径，没有安装任何东西，从MLNX，iso，除了固件更新到infiniband卡。

opensm需要运行在infiniband网络上的至少一台服务器上，然后在infiniband卡上会看到绿色链接灯，并且都会工作。

MLNX导致删除一些不兼容的redhat rpms，如果其他服务器执行redhat "infiniband support“安装以使infiniband连接正常运行，则会导致获取nfs+rdma和nfs的问题。

最后，我总结了redhat infiniband支持路径以使其正常工作，并且只使用MLNX进行固件更新；除非您知道自己在做什么，而且真正想要这些，否则不要让MLNX iso在linux中安装所有内容。