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Message-ID: <bb68fc32-9c6c-ceda-a961-f4fde72ce64d@huawei.com>
Date: Mon, 6 May 2024 18:45:29 +0800
From: shaozhengchao <shaozhengchao@...wei.com>
To: Zhu Yanjun <zyjzyj2000@...il.com>, <saeedm@...dia.com>,
<tariqt@...dia.com>, <borisp@...dia.com>, <shayd@...dia.com>,
<msanalla@...dia.com>, Rahul Rameshbabu <rrameshbabu@...dia.com>,
<weizhang@...dia.com>, <kliteyn@...dia.com>, <erezsh@...dia.com>,
<igozlan@...dia.com>
CC: netdev <netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>
Subject: Re: [question] when bonding with CX5 network card that support ROCE
Hi yanjun:
The following is the command output after the cat /proc/net/bonding
/bond0 command is run:
[root@...alhost ~]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v5.10.0+
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0
802.3ad info
LACP rate: slow
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: f4:1d:6b:6f:3b:97
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 1
Actor Key: 23
Partner Key: 1
Partner Mac Address: 00:00:00:00:00:00
Slave Interface: enp145s0f0
MII Status: up
Speed: 40000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: f4:1d:6b:6f:3b:97
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: churned
Partner Churn State: churned
Actor Churned Count: 1
Partner Churned Count: 2
details actor lacp pdu:
system priority: 65535
system mac address: f4:1d:6b:6f:3b:97
port key: 23
port priority: 255
port number: 1
port state: 69
details partner lacp pdu:
system priority: 65535
system mac address: 00:00:00:00:00:00
oper key: 1
port priority: 255
port number: 1
port state: 1
Slave Interface: enp145s0f1
MII Status: up
Speed: 40000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: f4:1d:6b:6f:3b:98
Slave queue ID: 0
Aggregator ID: 2
Actor Churn State: none
Partner Churn State: churned
Actor Churned Count: 0
Partner Churned Count: 1
details actor lacp pdu:
system priority: 65535
system mac address: f4:1d:6b:6f:3b:97
port key: 23
port priority: 255
port number: 2
port state: 77
details partner lacp pdu:
system priority: 65535
system mac address: 00:00:00:00:00:00
oper key: 1
port priority: 255
port number: 1
port state: 1
Thank you
Zhengchao Shao
On 2024/5/6 16:26, Zhu Yanjun wrote:
> On 06.05.24 06:46, shaozhengchao wrote:
>>
>> When using the 5.10 kernel, I can find two IB devices using the
>> ibv_devinfo command.
>> ----------------------------------
>> [root@...alhost ~]# lspci
>> 91:00.0 Ethernet controller: Mellanox Technologies MT27800 Family
>> [ConnectX-5]
>> 91:00.1 Ethernet controller: Mellanox Technologies MT27800 Family
>> ----------------------------------
>> [root@...alhost ~]# ibv_devinfo
>> hca_id: mlx5_0
>> transport: InfiniBand (0)
>> fw_ver: 16.31.1014
>> node_guid: f41d:6b03:006f:4743
>> sys_image_guid: f41d:6b03:006f:4743
>> vendor_id: 0x02c9
>> vendor_part_id: 4119
>> hw_ver: 0x0
>> board_id: HUA0000000004
>> phys_port_cnt: 1
>> port: 1
>> state: PORT_ACTIVE (4)
>> max_mtu: 4096 (5)
>> active_mtu: 1024 (3)
>> sm_lid: 0
>> port_lid: 0
>> port_lmc: 0x00
>> link_layer: Ethernet
>>
>> hca_id: mlx5_1
>> transport: InfiniBand (0)
>> fw_ver: 16.31.1014
>> node_guid: f41d:6b03:006f:4744
>> sys_image_guid: f41d:6b03:006f:4743
>> vendor_id: 0x02c9
>> vendor_part_id: 4119
>> hw_ver: 0x0
>> board_id: HUA0000000004
>> phys_port_cnt: 1
>> port: 1
>> state: PORT_ACTIVE (4)
>> max_mtu: 4096 (5)
>> active_mtu: 1024 (3)
>> sm_lid: 0
>> port_lid: 0
>> port_lmc: 0x00
>> link_layer: Ethernet
>> ----------------------------------
>> But after the two network ports are bonded, only one IB device is
>> available, and only PF0 can be used.
>> [root@...alhost shaozhengchao]# ibv_devinfo
>> hca_id: mlx5_bond_0
>> transport: InfiniBand (0)
>> fw_ver: 16.31.1014
>> node_guid: f41d:6b03:006f:4743
>> sys_image_guid: f41d:6b03:006f:4743
>> vendor_id: 0x02c9
>> vendor_part_id: 4119
>> hw_ver: 0x0
>> board_id: HUA0000000004
>> phys_port_cnt: 1
>> port: 1
>> state: PORT_ACTIVE (4)
>> max_mtu: 4096 (5)
>> active_mtu: 1024 (3)
>> sm_lid: 0
>> port_lid: 0
>> port_lmc: 0x00
>> link_layer: Ethernet
>>
>> The current Linux mainline driver is the same.
>>
>> I found the comment ("If bonded, we do not add an IB device for PF1.")
>> in the mlx5_lag_intf_add function of the 5.10 branch driver code.
>
> Not sure if rdma lag is enabled for this or not. /proc/net/bonding will
> provide more more details normally.
>
> Zhu Yanjun
>
>> This indicates that wthe the same NIC is used, only PF0 support bonding?
>> Are there any other constraints, when enable bonding with CX5?
>>
>> Thank you
>> Zhengchao Shao
>
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