We are seeing failures setting up a QP using rdma_create_qp.
This only occurs when:
init_qp_attr.cap.max_send_wr
init_qp_attr.cap.max_recv_wr
Totals to more than 16K.
I have queried the device attributes and I have found:
ib_device_attr.max_qp_wr = 65535
The CQ is setup to have: init_qp_attr.cap.max_send_wr +
init_qp_attr.cap.max_recv_wr CQE's and we are not seeing any
failures creating the CQ with ib_create_cq.
I have tried replicating this problem using user level verbs but I am
unable to do so using ibv_create_qp. I used the test program located
here:
http://lists.openfabrics.org/pipermail/general/2006-February/017104.html
For reference ibv_devinfo reports:
hca_id: mthca0
fw_ver: 4.7.600
node_guid: 0008:f104:0397:b6b8
sys_image_guid: 0008:f104:0397:b6bb
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: 1
port_lmc: 0x00
port: 2
state: PORT_DOWN (1)
max_mtu: 2048 (4)
active_mtu: 512 (2)
sm_lid: 0
port_lid: 0
port_lmc: 0x00
And lspci:
04:00.0 InfiniBand: Mellanox Technologies MT25208 InfiniHost III Ex
(Tavor compatibility mode) (rev 20)
Any ideas here?
Thanks,
Galen
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