zrlio / Softiwarp
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#SoftiWARP
SoftiWARP (siw) is a software iWARP kernel driver and user library
for Linux. It implements the iWARP protocol suite (MPA/DDP/RDMAP,
IETF-RFC 5044/5041/5040) completely in software, without requiring
any dedicated RDMA hardware. It comprises a loadable Linux kernel
module siw located in kernel/ and a user level library libsiw
located in userlib/.
SoftiWarp targets for integration with the OpenFabrics (OFA) ecosystem. For OFA integration, it is written against its kernel and user level interfaces.
SoftiWARP supports both user level and kernel level applications. It makes use of the OFA connection manager to set up connections. The kernel component runs on top of TCP kernel sockets.
Code structure
kernel/: kernel module
userlib/: user library
common/: common include file(s)
Build and install
Linux kernel versions
SoftiWARP code tries to stay up to date with recent Linux kernels.
Git master is supposed to run on the newest stable kernel.
To ease code maintenance and to allow for back porting
of any new features, old versions of SoftiWARP will be branched
off with discriptive names. master is always tagged with the kernel
version it matches.
Re-installing a newer SoftiWARP version after a kernel upgrade shall include making and re-installing both user library and kernel module (see below).
User-space library
cd /path/to/your/clone/userlib
./autogen.sh
./configure
make install
Kernel module
To build:
cd /path/to/your/clone/kernel
make
To load:
settings 1: for starting TX threads on available CPUs (check dmesg which CPUs runs TX thread)
sudo insmod ./siw.ko
setting 2: for starting TX thread on all CPUs given in comma separated list, if CPU available
sudo insmod ./siw.ko tx_cpu_list=[n,m,...]
Contributions
PRs are always welcome. Please fork, and make necessary modifications you propose, and let us know.
Contact
If you have questions or suggestions, feel free to post at:
https://groups.google.com/forum/#!forum/zrlio-users
or email: [email protected]