On 6/8/22 7:54 PM, Jason Gunthorpe wrote:
On Wed, Jun 08, 2022 at 06:43:09PM +0800, Cheng Xu wrote:
Hello all,
This v10 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 v10:
- Remove unneeded semicolon in erdma_qp.c reported by Abcci Robot.
- Remove duplicated include in erdma_cm.c reported by Abcci Robot.
- Fix return value check in erdma_alloc_ucontext() reported by Hulk
Robot.
- Sort the include headers.
I updated it, but please wait longer before sending v11.
Jason
Got it, and I will wait longer.
Thanks,
Cheng Xu
