[ofa-general] 4GB physical memory limit on Chelsio

[Steve Wise]

Or Gerlitz wrote:
> pandit ib wrote:
>   
>> Is there a way to make it work on systems with > 4GB of physical memory. 
>>     
>
> I think you want to look on zero STag, e.g see commit 96f15c0.... "RDMA/core: Add local DMA L_Key support" and bd7ed1... "RPC/RDMA: check selected memory registration mode at runtime"
>
>   

Yes, Zero stag aka the local dma lmr can be used, but only for local 
operations.  You cannot use the local dma lkey for the source or sink of 
an rdma read...

Steve.