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From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>
Cc: Leon Romanovsky <leonro@nvidia.com>, linux-rdma@vger.kernel.org,
Lior Nahmanson <liorna@nvidia.com>,
Meir Lichtinger <meirl@nvidia.com>, netdev@vger.kernel.org,
Saeed Mahameed <saeedm@nvidia.com>
Subject: [PATCH rdma-next 0/3] Add ConnectX DCS offload support
Date: Thu, 3 Jun 2021 15:51:47 +0300
Message-Id: <cover.1622723815.git.leonro@nvidia.com>
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Add ConnectX DCS offload support
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From: Leon Romanovsky <leonro@nvidia.com> This patchset from Lior adds support of DCI stream channel (DCS) support. DCS is an offload to SW load balancing of DC initiator work requests. A single DC QP initiator (DCI) can be connected to only one target at the time and can't start new connection until the previous work request is completed. This limitation causes to delays when the initiator process needs to transfer data to multiple targets at the same time. Thanks Lior Nahmanson (3): net/mlx5: Add DCS caps & fields support RDMA/mlx5: Move DCI QP creation to separate function RDMA/mlx5: Add DCS offload support drivers/infiniband/hw/mlx5/main.c | 10 ++ drivers/infiniband/hw/mlx5/qp.c | 168 ++++++++++++++++++++++++++++++ include/linux/mlx5/mlx5_ifc.h | 14 ++- include/uapi/rdma/mlx5-abi.h | 17 ++- 4 files changed, 204 insertions(+), 5 deletions(-)