On Wed, Jun 15, 2022 at 09:52:16AM +0800, Cheng Xu wrote: > Hello all, > > This v11 patch set introduces the Elastic RDMA Adapter (ERDMA) driver, > which released in Apsara Conference 2021 by Alibaba. The PR of ERDMA > userspace provider has already been created [1]. > > ERDMA enables large-scale RDMA acceleration capability in Alibaba ECS > environment, initially offered in g7re instance. It can improve the > efficiency of large-scale distributed computing and communication > significantly and expand dynamically with the cluster scale of Alibaba > Cloud. > > ERDMA is a RDMA networking adapter based on the Alibaba MOC hardware. It > works in the VPC network environment (overlay network), and uses iWarp > transport protocol. ERDMA supports reliable connection (RC). ERDMA also > supports both kernel space and user space verbs. Now we have already > supported HPC/AI applications with libfabric, NoF and some other internal > verbs libraries, such as xrdma, epsl, etc,. > > For the ECS instance with RDMA enabled, our MOC hardware generates two > kinds of PCI devices: one for ERDMA, and one for the original net device > (virtio-net). They are separated PCI devices. > > Fixed issues in v11: > - Return -EIO when CMDQ response has error status. > - Eliminate static checker warnings. I updated the linux-next branch Thanks, Jason
