The Vendor ID indicates that this is a Voltaire card which probably means it
is an older card. Some of the early Mellanox based cards did not support
anything bigger than 2048.
00-08-F1 (hex) Voltaire
0008F1 (base 16) Voltaire
9 Hamenofim st.
Herzelia 46725
ISRAEL
Checking for FW updates cannot hurt but you may well be restricted to 2048
-----Original Message-----
From: Gandalf Corvotempesta [mailto:[email protected]]
Sent: Saturday, August 31, 2013 5:21 AM
To: Rupert Dance
Cc: Hefty, Sean; [email protected]
Subject: Re: Slow performance with librspreload.so
2013/8/30 Rupert Dance <[email protected]>:
> One way to set or check mtu is with the ibportstate utility:
>
> Usage: ibportstate [options] <dest dr_path|lid|guid> <portnum> [<op>]
> Supported ops: enable, disable, reset, speed, width, query, down, arm,
> active, vls, mtu, lid, smlid, lmc
I've tried but max MTU is 2048 on one device:
$ sudo ibv_devinfo
hca_id: mthca0
transport: InfiniBand (0)
fw_ver: 4.7.600
node_guid: 0008:f104:0398:14cc
sys_image_guid: 0008:f104:0398:14cf
vendor_id: 0x08f1
vendor_part_id: 25208
hw_ver: 0xA0
board_id: VLT0040010001
phys_port_cnt: 2
port: 1
state: PORT_ACTIVE (4)
max_mtu: 2048 (4)
active_mtu: 2048 (4)
sm_lid: 1
port_lid: 2
port_lmc: 0x00
link_layer: InfiniBand
any workaround? Maybe a firmware update ?
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