Roland,
We really want a big sendq/recvq size in cluster nodes, much higher than 256. Setting a big default QP sendq and recvq sizes would not be applied to any HCA driver. Each HCA has its own max QP queue size. Making these parameters tunable makes more sense.
In the meanwhile I am working on a patch to remove TX_RING in IPoIB and replace RX_RING with dynamic queue. TX_RING/RX_RING in IPoIB confuses users. These two parameters are not as same concept as Ethernet device here. It would take me quite a while to finish it (including patch validation, performance testing.)
Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-7638
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