HCA卡的Port GUID 和ib0的关系


HCA卡的Port GUID 和ib0的关系
[root@rac2 ~]# ibstat
CA 'mlx4_0'         ——————————————>>>>额外说明:这是第一个HCA卡(并且是双port,所以下面有port1和prot2)
    CA type: MT4099
    Number of ports: 2
    Firmware version: 2.35.5100
    Hardware version: 0
    Node GUID: 0x248a0703005d07f0
    System image GUID: 0x248a0703005d07f3
    Port 1:
        State: Active
        Physical state: LinkUp
        Rate: 56
        Base lid: 4
        LMC: 0
        SM lid: 4
        Capability mask: 0x0259486a
        Port GUID: 0x248a0703005d07f1---------------->>>注意此处!!!!
        Link layer: InfiniBand
    Port 2:
        State: Down
        Physical state: Polling
        Rate: 10
        Base lid: 0
        LMC: 0
        SM lid: 0
        Capability mask: 0x02594868
        Port GUID: 0x248a0703005d07f2
        Link layer: InfiniBand
CA 'mlx4_1''         ——————————————>>>>额外说明:这是第二个HCA卡(并且是双port,所以下面有port1和prot2)
    CA type: MT4099
    Number of ports: 2
    Firmware version: 2.35.5100
    Hardware version: 0
    Node GUID: 0x248a0703005d0840
    System image GUID: 0x248a0703005d0843
    Port 1:
        State: Active
        Physical state: LinkUp
        Rate: 56
        Base lid: 6
        LMC: 0
        SM lid: 8
        Capability mask: 0x02594868
        Port GUID: 0x248a0703005d0841
        Link layer: InfiniBand
    Port 2:
        State: Down
        Physical state: Polling
        Rate: 10
        Base lid: 0
        LMC: 0
        SM lid: 0
        Capability mask: 0x02594868
        Port GUID: 0x248a0703005d0842
        Link layer: InfiniBand

[root@rac2 ~]# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp5s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 0c:c4:7a:ab:d3:4c brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.102/24 brd 192.168.100.255 scope global enp5s0f0
       valid_lft forever preferred_lft forever
    inet6 fe80::ec4:7aff:feab:d34c/64 scope link
       valid_lft forever preferred_lft forever
3: enp5s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 0c:c4:7a:ab:d3:4d brd ff:ff:ff:ff:ff:ff
4: ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP qlen 256
    link/infiniband 80:00:02:08:fe:80:00:00:00:00:00:00:24:8a:07:03:00:5d:07:f1 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 10.10.10.105/24 brd 10.10.10.255 scope global ib0         ~~~~~~~~~~~~--->注意此处!!!
       valid_lft forever preferred_lft forever
    inet6 fe80::268a:703:5d:7f1/64 scope link
       valid_lft forever preferred_lft forever
5: ib1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 2044 qdisc pfifo_fast state DOWN qlen 256
    link/infiniband 80:00:02:09:fe:80:00:00:00:00:00:00:24:8a:07:03:00:5d:07:f2 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 10.10.10.106/24 brd 10.10.10.255 scope global ib1
       valid_lft forever preferred_lft forever
6: ib2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP qlen 256
    link/infiniband 80:00:02:08:fe:80:00:00:00:00:00:02:24:8a:07:03:00:5d:08:41 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 10.10.10.107/24 brd 10.10.10.255 scope global ib2
       valid_lft forever preferred_lft forever
    inet6 fe80::268a:703:5d:841/64 scope link
       valid_lft forever preferred_lft forever
7: ib3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 2044 qdisc pfifo_fast state DOWN qlen 256
    link/infiniband 80:00:02:09:fe:80:00:00:00:00:00:00:24:8a:07:03:00:5d:08:42 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    inet 10.10.10.108/24 brd 10.10.10.255 scope global ib3
       valid_lft forever preferred_lft forever
8: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN
    link/ether 52:54:00:74:ff:7b brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
9: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 500
    link/ether 52:54:00:74:ff:7b brd ff:ff:ff:ff:ff:ff


[root@rac2 ~]# ifconfig
enp5s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.100.102  netmask 255.255.255.0  broadcast 192.168.100.255
        inet6 fe80::ec4:7aff:feab:d34c  prefixlen 64  scopeid 0x20<link>
        ether 0c:c4:7a:ab:d3:4c  txqueuelen 1000  (Ethernet)
        RX packets 9803  bytes 744701 (727.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2027  bytes 175450 (171.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0xc7820000-c783ffff  

ib0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 2044
        inet 10.10.10.105  netmask 255.255.255.0  broadcast 10.10.10.255
        inet6 fe80::268a:703:5d:7f1  prefixlen 64  scopeid 0x20<link>---------------------------->注意本行最左侧!!
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).
        infiniband 80:00:02:08:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00  txqueuelen 256  (InfiniBand)
        RX packets 61  bytes 6687 (6.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 51  bytes 4298 (4.1 KiB)
        TX errors 0  dropped 7 overruns 0  carrier 0  collisions 0

ib1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 2044
        inet 10.10.10.106  netmask 255.255.255.0  broadcast 10.10.10.255
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).
        infiniband 80:00:02:09:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00  txqueuelen 256  (InfiniBand)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ib2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 2044
        inet 10.10.10.107  netmask 255.255.255.0  broadcast 10.10.10.255
        inet6 fe80::268a:703:5d:841  prefixlen 64  scopeid 0x20<link>
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).
        infiniband 80:00:02:08:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00  txqueuelen 256  (InfiniBand)
        RX packets 14  bytes 3411 (3.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 7 overruns 0  carrier 0  collisions 0

ib3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 2044
        inet 10.10.10.108  netmask 255.255.255.0  broadcast 10.10.10.255
Infiniband hardware address can be incorrect! Please read BUGS section in ifconfig(8).
        infiniband 80:00:02:09:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00  txqueuelen 256  (InfiniBand)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 24  bytes 1724 (1.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 24  bytes 1724 (1.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:74:ff:7b  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@rac2 ~]# 



HBA是主机总线适配器(Host Bus Adapter)的简称,也叫做FC - HBA(俗称光纤网)、iSCSI - HBA(RJ45接口),是在服务器存储装置间提供输入/输出(I/O)处理物理连接的电路板或集成电路适配器。因传输协议不同而出现,一般用在服务器的主板上,提供光纤接口,后被归为一种网,传输ISCSI协议,接口类型与以太网相同,外接存储用的光纤交换机。HBA可减轻主处理器在数据存储检索任务的负担,提高服务器的性能,一个HBA与之相连的磁盘子系统有时一起被称作一个磁盘通道[^2]。 HCA即主机通道适配器(Host Channel Adapter),主要用于高速网络通信,特别是在InfiniBand网络中。它能提供高性能、低延迟的数据传输,支持远程直接内存访问(RDMA)技术,使得计算机可以直接访问其他计算机的内存,无需经过对方操作系统的干预,大大提高了数据传输效率,常用于数据中心、高性能计算等对网络性能要求极高的场景。 HCAHBA的区别主要体现在以下几个方面: - **应用场景**:HBA主要用于服务器存储设备之间的连接,侧重于数据的存储检索;HCA则主要用于高速网络通信,适用于对网络延迟带宽要求极高的场景,如高性能计算集群、大规模数据中心等。 - **传输协议**:HBA通常支持光纤通道(FC)协议或iSCSI协议;HCA主要支持InfiniBand协议,该协议专为高速数据传输设计,提供了更高的带宽更低的延迟。 - **性能特点**:HCA以其低延迟、高带宽的特性,在数据传输速度效率上表现更为突出;HBA虽然也能提供一定的传输性能,但主要是满足服务器与存储设备之间的数据交互需求,性能指标相对HCA较低。 ```python # 简单示例代码,模拟HBAHCA的功能调用 class HBA: def __init__(self): self.name = "HBA" def connect_storage(self): print(f"{self.name} 连接存储设备") def transfer_data(self): print(f"{self.name} 进行数据存储检索") class HCA: def __init__(self): self.name = "HCA" def connect_network(self): print(f"{self.name} 连接高速网络") def high_speed_transfer(self): print(f"{self.name} 进行高速低延迟数据传输") hba = HBA() hca = HCA() hba.connect_storage() hba.transfer_data() hca.connect_network() hca.high_speed_transfer() ```
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