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ConnectX-6 DX. Currently TLS v1.2 and v1.3 with AES 128/256 crypto over TCP/IP (v4 and v6) is supported. A per PCI device UMA zone is used to manage the memory of the send tags. To optimize performance some crypto contexts may be cached by the UMA zone, until the UMA zone finishes the memory of the given send tag. An asynchronous task is used manage setup of the send tags towards the firmware. Most importantly setting the AES 128/256 bit pre-shared keys for the crypto context. Updating the state of the AES crypto engine and encrypting data, is all done in the fast path. Each send tag tracks the TCP sequence number in order to detect non-contiguous blocks of data, which may require a dump of prior unencrypted data, to restore the crypto state prior to wire transmission. Statistics counters have been added to count the amount of TLS data transmitted in total, and the amount of TLS data which has been dumped prior to transmission. When non-contiguous TCP sequence numbers are detected, the software needs to dump the beginning of the current TLS record up until the point of retransmission. All TLS counters utilize the counter(9) API. In order to enable hardware TLS offload the following sysctls must be set: kern.ipc.mb_use_ext_pgs=1 kern.ipc.tls.ifnet.permitted=1 kern.ipc.tls.enable=1 Sponsored by: Mellanox Technologies
FreeBSD Source:
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FreeBSD
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.
Source Roadmap:
bin System/user commands.
cddl Various commands and libraries under the Common Development
and Distribution License.
contrib Packages contributed by 3rd parties.
crypto Cryptography stuff (see crypto/README).
etc Template files for /etc.
gnu Various commands and libraries under the GNU Public License.
Please see gnu/COPYING* for more information.
include System include files.
kerberos5 Kerberos5 (Heimdal) package.
lib System libraries.
libexec System daemons.
release Release building Makefile & associated tools.
rescue Build system for statically linked /rescue utilities.
sbin System commands.
secure Cryptographic libraries and commands.
share Shared resources.
stand Boot loader sources.
sys Kernel sources.
sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
used in release builds. NOTES contains documentation of
all possible entries.
tests Regression tests which can be run by Kyua. See tests/README
for additional information.
tools Utilities for regression testing and miscellaneous tasks.
usr.bin User commands.
usr.sbin System administration commands.
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html