Mellanox OFED Driver 설치 및 MTU값 2044에서 65520으로 변경

http://www.mellanox.com/page/products_dyn?product_family=26&menu_section=34#tab-three)

# yum -y remove rdma librdmacm

# mount -t iso9660 -o loop MLNX_OFED_LINUX-3.4-1.0.0.0-rhel7.2-x86_64.iso /mnt

# cd /

# /mnt/mlnx_add_kernel_support.sh -m /mnt --make-tgz

Note: This program will create MLNX_OFED_LINUX TGZ for rhel7.2 under /tmp directory.

Do you want to continue?[y/N]:y

# tar zxvfp MLNX_OFED_LINUX-3.4-1.0.0.0-rhel7.2-x86_64-ext.tgz

# cd MLNX_OFED_LINUX-3.4-1.0.0.0-rhel7.2-x86_64-ext/

# ./mlnxofedinstall --all --without-depcheck

# sync;sync;reboot

# nmcli con add con-name ib0 ifname ib0 type infiniband ip4 10.4.3.10/16

연결 'ib0' (64cf62f3-7902-49da-88c5-01216190025a)이 성공적으로 추가되었습니다.

# nmcli con modify ib0 infiniband.mtu 65520 infiniband.transport-mode connected

# rmmod ib_ipoib

# modprobe ib_ipoib

# nmcli con up ib0

# vi /etc/sysconfig/network-scripts/ifcfg-ib0

TYPE=InfiniBand

BOOTPROTO=none

DEFROUTE=yes

NAME=ib0

UUID=64cf62f3-7902-49da-88c5-01216190025a

DEVICE=ib0

ONBOOT=yes

MTU=65520

CONNECTED_MODE=yes

IPADDR=10.4.3.10

PREFIX=16

IPV4_FAILURE_FATAL=no

IPV6INIT=no

# systemctl restart network.service

# ip addr show ib0

9: ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc mq state UP qlen 1024

    link/infiniband a0:00:02:20:fe:80:00:00:00:00:00:00:00:02:c9:03:00:4b:2b:3d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff

    inet 10.4.3.10/16 brd 10.4.255.255 scope global ib0

       valid_lft forever preferred_lft forever

    inet6 fe80::202:c903:4b:2b3d/64 scope link

       valid_lft forever preferred_lft forever