linux-yocto - Yocto Linux Embedded kernel

Age	Commit message (Collapse)	Author
2022-01-27	RDMA/rxe: Fix a typo in opcode name	Chengguang Xu
	commit 8d1cfb884e881efd69a3be4ef10772c71cb22216 upstream. There is a redundant ']' in the name of opcode IB_OPCODE_RC_SEND_MIDDLE, so just fix it. Fixes: 8700e3e7c485 ("Soft RoCE driver") Link: https://lore.kernel.org/r/20211218112320.3558770-1-cgxu519@mykernel.net Signed-off-by: Chengguang Xu <cgxu519@mykernel.net> Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com> Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-27	IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV	Jianchao Wang
	w/o RXE_START_MASK, the last_psn of IB_OPCODE_RC_SEND_ONLY_INV will not be updated in update_wqe_psn, and the corresponding wqe will not be acked in rxe_completer due to its last_psn is zero. Finally, the other wqe will also not be able to be acked, because the wqe of IB_OPCODE_RC_SEND_ONLY_INV with last_psn 0 is still there. This causes large amount of io timeout when nvmeof is over rxe. Add RXE_START_MASK for IB_OPCODE_RC_SEND_ONLY_INV to fix this. Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-04	Soft RoCE driver	Moni Shoua
	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>

commit 8d1cfb884e881efd69a3be4ef10772c71cb22216 upstream. There is a redundant ']' in the name of opcode IB_OPCODE_RC_SEND_MIDDLE, so just fix it. Fixes: 8700e3e7c485 ("Soft RoCE driver") Link: https://lore.kernel.org/r/20211218112320.3558770-1-cgxu519@mykernel.net Signed-off-by: Chengguang Xu <cgxu519@mykernel.net> Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com> Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

w/o RXE_START_MASK, the last_psn of IB_OPCODE_RC_SEND_ONLY_INV will not be updated in update_wqe_psn, and the corresponding wqe will not be acked in rxe_completer due to its last_psn is zero. Finally, the other wqe will also not be able to be acked, because the wqe of IB_OPCODE_RC_SEND_ONLY_INV with last_psn 0 is still there. This causes large amount of io timeout when nvmeof is over rxe. Add RXE_START_MASK for IB_OPCODE_RC_SEND_ONLY_INV to fix this. Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>

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>