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| author | Moni Shoua <monis@mellanox.com> | 2016-06-16 16:45:23 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-04 11:13:12 -0400 |
| commit | 8700e3e7c4857d28ebaa824509934556da0b3e76 (patch) | |
| tree | 16df6bc7f4764311d5ec0c6a311eaf3b95a269e3 /MAINTAINERS | |
| parent | 33688abb2802ff3a230bd2441f765477b94cc89e (diff) | |
| download | lwn-8700e3e7c4857d28ebaa824509934556da0b3e76.tar.gz lwn-8700e3e7c4857d28ebaa824509934556da0b3e76.zip | |
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>
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index e1b090f86e0d..4daa6712eac1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7444,6 +7444,15 @@ W: http://www.mellanox.com Q: http://patchwork.ozlabs.org/project/netdev/list/ F: drivers/net/ethernet/mellanox/mlxsw/ +SOFT-ROCE DRIVER (rxe) +M: Moni Shoua <monis@mellanox.com> +L: linux-rdma@vger.kernel.org +S: Supported +W: https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home +Q: http://patchwork.kernel.org/project/linux-rdma/list/ +F: drivers/infiniband/hw/rxe/ +F: include/uapi/rdma/rdma_user_rxe.h + MEMBARRIER SUPPORT M: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |