UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/drivers/infiniband/sw/rxe/Kconfig

30 lines
1.2 KiB
Plaintext
Raw Normal View History

treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 20:07:45 +08:00
# SPDX-License-Identifier: GPL-2.0-only
Soft RoCE driver Soft RoCE (RXE) - The software RoCE driver ib_rxe implements the RDMA transport and registers to the RDMA core device as a kernel verbs provider. It also implements the packet IO layer. On the other hand ib_rxe registers to the Linux netdev stack as a udp encapsulating protocol, in that case RDMA, for sending and receiving packets over any Ethernet device. This yields a RDMA transport over the UDP/Ethernet network layer forming a RoCEv2 compatible device. The configuration procedure of the Soft RoCE drivers requires binding to any existing Ethernet network device. This is done with /sys interface. A userspace Soft RoCE library (librxe) provides user applications the ability to run with Soft RoCE devices. The use of rxe verbs ins user space requires the inclusion of librxe as a device specifics plug-in to libibverbs. librxe is packaged separately. Architecture: +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ +---------------------------------------------------------------+ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Soft RoCE resources: [1[ https://github.com/SoftRoCE/librxe-dev librxe - source code in Github [2] https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home - Soft RoCE Wiki page [3] https://github.com/SoftRoCE/librxe-dev - Soft RoCE userspace library Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-16 21:45:23 +08:00
config RDMA_RXE
tristate "Software RDMA over Ethernet (RoCE) driver"
depends on INET && PCI && INFINIBAND
ock: sync codes to ock 5.4.119-20.0009.21 Gitee limit the repo's size to 3GB, to reduce the size of the code, sync codes to ock 5.4.119-20.0009.21 in one commit. Signed-off-by: Jianping Liu <frankjpliu@tencent.com>
2024-06-11 20:26:44 +08:00
depends on INFINIBAND_VIRT_DMA
IB/rxe: Change RDMA_RXE kconfig to use select NET_UDP_TUNNEL is not user selectable, so it should be used as a select in kconfig. CRYPTO_CRC32 is a required library for RDMA_RXE so it should active automatically, as most other CRYPTO_ users do. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-01-27 05:18:33 +08:00
select NET_UDP_TUNNEL
ock: sync codes to ock 5.4.119-20.0009.21 Gitee limit the repo's size to 3GB, to reduce the size of the code, sync codes to ock 5.4.119-20.0009.21 in one commit. Signed-off-by: Jianping Liu <frankjpliu@tencent.com>
2024-06-11 20:26:44 +08:00
select CRYPTO
IB/rxe: Change RDMA_RXE kconfig to use select NET_UDP_TUNNEL is not user selectable, so it should be used as a select in kconfig. CRYPTO_CRC32 is a required library for RDMA_RXE so it should active automatically, as most other CRYPTO_ users do. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-01-27 05:18:33 +08:00
select CRYPTO_CRC32
IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it Make the rxe and rdmavt drivers use dma_virt_ops. Update the comments that refer to the source files removed by this patch. Remove struct ib_dma_mapping_ops. Remove ib_device.dma_ops. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Andrew Boyer <andrew.boyer@dell.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Jonathan Toppins <jtoppins@redhat.com> Cc: Alex Estrin <alex.estrin@intel.com> Cc: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-21 05:04:37 +08:00
select DMA_VIRT_OPS
Soft RoCE driver Soft RoCE (RXE) - The software RoCE driver ib_rxe implements the RDMA transport and registers to the RDMA core device as a kernel verbs provider. It also implements the packet IO layer. On the other hand ib_rxe registers to the Linux netdev stack as a udp encapsulating protocol, in that case RDMA, for sending and receiving packets over any Ethernet device. This yields a RDMA transport over the UDP/Ethernet network layer forming a RoCEv2 compatible device. The configuration procedure of the Soft RoCE drivers requires binding to any existing Ethernet network device. This is done with /sys interface. A userspace Soft RoCE library (librxe) provides user applications the ability to run with Soft RoCE devices. The use of rxe verbs ins user space requires the inclusion of librxe as a device specifics plug-in to libibverbs. librxe is packaged separately. Architecture: +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ +---------------------------------------------------------------+ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Soft RoCE resources: [1[ https://github.com/SoftRoCE/librxe-dev librxe - source code in Github [2] https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home - Soft RoCE Wiki page [3] https://github.com/SoftRoCE/librxe-dev - Soft RoCE userspace library Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-16 21:45:23 +08:00
---help---
This driver implements the InfiniBand RDMA transport over
the Linux network stack. It enables a system with a
standard Ethernet adapter to interoperate with a RoCE
adapter or with another system running the RXE driver.
Documentation on InfiniBand and RoCE can be downloaded at
www.infinibandta.org and www.openfabrics.org. (See also
siw which is a similar software driver for iWARP.)
The driver is split into two layers, one interfaces with the
Linux RDMA stack and implements a kernel or user space
verbs API. The user space verbs API requires a support
library named librxe which is loaded by the generic user
space verbs API, libibverbs. The other layer interfaces
with the Linux network stack at layer 3.
To configure and work with soft-RoCE driver please use the
following wiki page under "configure Soft-RoCE (RXE)" section:
IB/rxe: Update documentation link All Soft-RoCE (rxe) is handled now in rdma-core user space library, so the documentation. The patch below updates the documentation link to that new location. Reported-by: Josh Beavers <josh.beavers@gmail.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-01 03:42:53 +08:00
https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md