From: Leon Romanovsky <leon@kernel.org>
To: Cheng Xu <chengyou@linux.alibaba.com>
Cc: jgg@ziepe.ca, dledford@redhat.com, linux-rdma@vger.kernel.org,
KaiShen@linux.alibaba.com, tonylu@linux.alibaba.com
Subject: Re: [PATCH rdma-next 00/11] Elastic RDMA Adapter (ERDMA) driver
Date: Tue, 21 Dec 2021 15:09:26 +0200 [thread overview]
Message-ID: <YcHSBnKHmR9sb6KR@unreal> (raw)
In-Reply-To: <20211221024858.25938-1-chengyou@linux.alibaba.com>
On Tue, Dec 21, 2021 at 10:48:47AM +0800, Cheng Xu wrote:
> Hello all,
>
> This patch set introduces the Elastic RDMA Adapter (ERDMA) driver, which
> released in Apsara Conference 2021 by Alibaba.
>
> 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
> tranport 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,.
We will need to get erdma provider implementation in the rdma-core too,
in order to consider to merge it.
>
> For the ECS instance with RDMA enabled, there are two kinds of devices
> allocated, one for ERDMA, and one for the original netdev (virtio-net).
> They are different PCI deivces. ERDMA driver can get the information about
> which netdev attached to in its PCIe barspace (by MAC address matching).
This is very questionable. The netdev part should be kept in the
drivers/ethernet/... part of the kernel.
Thanks
>
> Thanks,
> Cheng Xu
>
> Cheng Xu (11):
> RDMA: Add ERDMA to rdma_driver_id definition
> RDMA/erdma: Add the hardware related definitions
> RDMA/erdma: Add main include file
> RDMA/erdma: Add cmdq implementation
> RDMA/erdma: Add event queue implementation
> RDMA/erdma: Add verbs header file
> RDMA/erdma: Add verbs implementation
> RDMA/erdma: Add connection management (CM) support
> RDMA/erdma: Add the erdma module
> RDMA/erdma: Add the ABI definitions
> RDMA/erdma: Add driver to kernel build environment
>
> MAINTAINERS | 8 +
> drivers/infiniband/Kconfig | 1 +
> drivers/infiniband/hw/Makefile | 1 +
> drivers/infiniband/hw/erdma/Kconfig | 10 +
> drivers/infiniband/hw/erdma/Makefile | 5 +
> drivers/infiniband/hw/erdma/erdma.h | 381 +++++
> drivers/infiniband/hw/erdma/erdma_cm.c | 1585 +++++++++++++++++++++
> drivers/infiniband/hw/erdma/erdma_cm.h | 158 ++
> drivers/infiniband/hw/erdma/erdma_cmdq.c | 489 +++++++
> drivers/infiniband/hw/erdma/erdma_cq.c | 201 +++
> drivers/infiniband/hw/erdma/erdma_debug.c | 314 ++++
> drivers/infiniband/hw/erdma/erdma_debug.h | 18 +
> drivers/infiniband/hw/erdma/erdma_eq.c | 346 +++++
> drivers/infiniband/hw/erdma/erdma_hw.h | 474 ++++++
> drivers/infiniband/hw/erdma/erdma_main.c | 711 +++++++++
> drivers/infiniband/hw/erdma/erdma_qp.c | 624 ++++++++
> drivers/infiniband/hw/erdma/erdma_verbs.c | 1477 +++++++++++++++++++
> drivers/infiniband/hw/erdma/erdma_verbs.h | 366 +++++
> include/uapi/rdma/erdma-abi.h | 49 +
> include/uapi/rdma/ib_user_ioctl_verbs.h | 1 +
> 20 files changed, 7219 insertions(+)
> create mode 100644 drivers/infiniband/hw/erdma/Kconfig
> create mode 100644 drivers/infiniband/hw/erdma/Makefile
> create mode 100644 drivers/infiniband/hw/erdma/erdma.h
> create mode 100644 drivers/infiniband/hw/erdma/erdma_cm.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_cm.h
> create mode 100644 drivers/infiniband/hw/erdma/erdma_cmdq.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_cq.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_debug.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_debug.h
> create mode 100644 drivers/infiniband/hw/erdma/erdma_eq.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_hw.h
> create mode 100644 drivers/infiniband/hw/erdma/erdma_main.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_qp.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_verbs.c
> create mode 100644 drivers/infiniband/hw/erdma/erdma_verbs.h
> create mode 100644 include/uapi/rdma/erdma-abi.h
>
> --
> 2.27.0
>
next prev parent reply other threads:[~2021-12-21 13:09 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 2:48 [PATCH rdma-next 00/11] Elastic RDMA Adapter (ERDMA) driver Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 01/11] RDMA: Add ERDMA to rdma_driver_id definition Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 02/11] RDMA/erdma: Add the hardware related definitions Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 03/11] RDMA/erdma: Add main include file Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 04/11] RDMA/erdma: Add cmdq implementation Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 05/11] RDMA/erdma: Add event queue implementation Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 06/11] RDMA/erdma: Add verbs header file Cheng Xu
2021-12-21 13:28 ` Leon Romanovsky
2021-12-22 2:36 ` Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 07/11] RDMA/erdma: Add verbs implementation Cheng Xu
2021-12-21 13:32 ` Leon Romanovsky
2021-12-21 15:20 ` Bernard Metzler
2021-12-22 3:11 ` Cheng Xu
2021-12-22 4:18 ` Cheng Xu
2021-12-22 12:46 ` Bernard Metzler
2021-12-23 8:38 ` Cheng Xu
2021-12-22 2:50 ` Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 08/11] RDMA/erdma: Add connection management (CM) support Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 09/11] RDMA/erdma: Add the erdma module Cheng Xu
2021-12-21 13:26 ` Leon Romanovsky
2021-12-22 2:33 ` Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 10/11] RDMA/erdma: Add the ABI definitions Cheng Xu
2021-12-21 11:57 ` kernel test robot
2021-12-22 16:14 ` kernel test robot
2021-12-23 15:46 ` Yanjun Zhu
2021-12-23 18:45 ` Leon Romanovsky
2021-12-23 22:55 ` Yanjun Zhu
2021-12-24 6:04 ` Leon Romanovsky
2021-12-24 7:54 ` Yanjun Zhu
2021-12-24 18:11 ` Leon Romanovsky
2021-12-24 7:12 ` Cheng Xu
2021-12-24 8:02 ` Yanjun Zhu
2021-12-24 18:19 ` Leon Romanovsky
2021-12-25 0:03 ` Yanjun Zhu
2021-12-25 3:36 ` Cheng Xu
2021-12-21 2:48 ` [PATCH rdma-next 11/11] RDMA/erdma: Add driver to kernel build environment Cheng Xu
2021-12-22 0:58 ` kernel test robot
2021-12-21 13:09 ` Leon Romanovsky [this message]
2021-12-22 3:35 ` [PATCH rdma-next 00/11] Elastic RDMA Adapter (ERDMA) driver Cheng Xu
2021-12-23 10:23 ` Leon Romanovsky
2021-12-23 12:59 ` Cheng Xu
2021-12-23 13:44 ` Leon Romanovsky
2021-12-24 7:07 ` Cheng Xu
2021-12-24 18:26 ` Leon Romanovsky
2021-12-25 2:54 ` Cheng Xu
2021-12-25 2:57 ` Cheng Xu
2021-12-25 3:03 ` [Please ignore the two former responses]Re: " Cheng Xu
2022-01-07 14:24 ` Jason Gunthorpe
2022-01-10 10:07 ` Cheng Xu
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