Messages in this thread | | | Subject | Re: [PATCH rdma-next] RDMA/rdmavt: Decouple QP and SGE lists allocations | From | Dennis Dalessandro <> | Date | Tue, 11 May 2021 08:26:43 -0400 |
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On 5/11/21 6:36 AM, Leon Romanovsky wrote: > From: Leon Romanovsky <leonro@nvidia.com> > > The rdmavt QP has fields that are both needed for the control and data > path. Such mixed declaration caused to the very specific allocation flow > with kzalloc_node and SGE list embedded into the struct rvt_qp. > > This patch separates QP creation to two: regular memory allocation for > the control path and specific code for the SGE list, while the access to > the later is performed through derefenced pointer. > > Such pointer and its context are expected to be in the cache, so > performance difference is expected to be negligible, if any exists. > > Signed-off-by: Leon Romanovsky <leonro@nvidia.com> > --- > Hi, > > This change is needed to convert QP to core allocation scheme. In that > scheme QP is allocated outside of the driver and size of such allocation > is constant and can be calculated at the compile time.
Thanks Leon, we'll get this put through our testing.
-Denny
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