[gpfsug-discuss] RoCE not playing ball

Barry Evans bevans at pixitmedia.com
Wed Sep 20 02:21:36 BST 2017


Hi All,

Weirdness with a RoCE interface - verbs is not playing ball and is
complaining about the inet6 address not matching up:

2017-09-02_07:46:01.376+0100: [I] VERBS RDMA starting with verbsRdmaCm=yes
verbsRdmaSend=no verbsRdmaUseMultiCqThreads=yes verbsRdmaUseCompVectors=yes
2017-09-02_07:46:01.377+0100: [I] VERBS RDMA library librdmacm.so (version
>= 1.1) loaded and initialized.
2017-09-02_07:46:01.377+0100: [I] VERBS RDMA verbsRdmasPerNode reduced from
1000 to 514 to match (nsdMaxWorkerThreads 512 + (nspdThreadsPerQueue 2 *
nspdQueues 1)).
2017-09-02_07:46:01.382+0100: [I] VERBS RDMA discover mlx4_1 port 1
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[0] subnet
0xFE80000000000000 id 0x268A07FFFEF981C0 state ACTIVE
2017-09-02_07:46:01.383+0100: [I] VERBS RDMA discover mlx4_1 port 1
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[1] subnet
0x0000000000000000 id 0x0000FFFFAC106404 state ACTIVE
2017-09-02_07:46:01.384+0100: [I] VERBS RDMA discover mlx4_1 port 2
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[0] subnet
0xFE80000000000000 id 0x248A070001F981E1 state DOWN
2017-09-02_07:46:01.385+0100: [I] VERBS RDMA discover mlx4_0 port 1
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[0] subnet
0xFE80000000000000 id 0x268A07FFFEF981C0 state ACTIVE
2017-09-02_07:46:01.385+0100: [I] VERBS RDMA discover mlx4_0 port 1
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[1] subnet
0x0000000000000000 id 0x0000FFFFAC106404 state ACTIVE
2017-09-02_07:46:01.386+0100: [I] VERBS RDMA discover mlx4_0 port 2
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[0] subnet
0xFE80000000000000 id 0x248A070001F981C1 state ACTIVE
2017-09-02_07:46:01.386+0100: [I] VERBS RDMA discover mlx4_0 port 2
transport IB link ETH NUMA node  0 pkey[0] 0xFFFF gid[1] subnet
0x0000000000000000 id 0x0000FFFF0AC20011 state ACTIVE
2017-09-02_07:46:01.387+0100: [I] VERBS RDMA parse verbsPorts mlx4_0/1
2017-09-02_07:46:01.390+0100: [W] VERBS RDMA parse error   verbsPort
mlx4_0/1   ignored due to interface not found for port 1 of device mlx4_0
with GID c081f9feff078a26. Please check if the correct inet6 address for
the corresponding IP network interface is set
2017-09-02_07:46:01.390+0100: [E] VERBS RDMA: rdma_get_cm_event err -1
2017-09-02_07:46:01.391+0100: [I] VERBS RDMA library librdmacm.so unloaded.
2017-09-02_07:46:01.391+0100: [E] VERBS RDMA failed to start, no valid
verbsPorts defined.


Anyone run into this before? I have another node imaged the *exact* same
way and no dice. Have tried a variety of drivers, cards, etc, same result
every time.

Cheers,
Barry

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