On Tue, 2018-10-09 at 12:05 +0300, Leon Romanovsky wrote: > From: Leon Romanovsky <leo...@mellanox.com> > > Changelog v0->v1: > * Changed patch #3 to use check_mask function from rdma-core instead define. > > -------------------------------------------------------------------------- > From Yonatan, > > Scatter to CQE is a HW offload feature that saves PCI writes by > scattering the payload to the CQE. > > The feature depends on the CQE size and if the CQE size is 64B, it will > work for payload smaller than 32. If the CQE size is 128B, it will work for > payload smaller than 64. > > The feature works for responder and requestor: > 1. For responder, if the payload is small as required above, the data > will be part of the CQE, and thus we save another PCI transaction the recv > buffers. > 2. For requestor, this can be used to get the RDMA_READ response and > RDMA_ATOMIC response in the CQE. This feature is already supported in > upstream. > > As part of this series, we are adding support for DC transport type and > ability to enable the feature (force enable) in the requestor when SQ > is not configured to signal all WRs. > > Thanks > > Yonatan Cohen (4): > net/mlx5: Expose DC scatter to CQE capability bit > IB/mlx5: Support scatter to CQE for DC transport type > IB/mlx5: Verify that driver supports user flags > IB/mlx5: Allow scatter to CQE without global signaled WRs > > drivers/infiniband/hw/mlx5/cq.c | 2 +- > drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 +- > drivers/infiniband/hw/mlx5/qp.c | 93 > ++++++++++++++++++++++++++++-------- > include/linux/mlx5/mlx5_ifc.h | 3 +- > include/uapi/rdma/mlx5-abi.h | 1 + > 5 files changed, 79 insertions(+), 22 deletions(-) > > -- > 2.14.4 >
Hi Leon,
This series looks fine. Let me know when the net/mlx5 portion has been
committed.
--
Doug Ledford <dledf...@redhat.com>
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