5033c43b7a
The ccr(4) driver supports use of the crypto accelerator engine on
Chelsio T6 NICs in "lookaside" mode via the opencrypto framework.
Currently, the driver supports AES-CBC, AES-CTR, AES-GCM, and AES-XTS
cipher algorithms as well as the SHA1-HMAC, SHA2-256-HMAC, SHA2-384-HMAC,
and SHA2-512-HMAC authentication algorithms. The driver also supports
chaining one of AES-CBC, AES-CTR, or AES-XTS with an authentication
algorithm for encrypt-then-authenticate operations.
Note that this driver is still under active development and testing and
may not yet be ready for production use. It does pass the tests in
tests/sys/opencrypto with the exception that the AES-GCM implementation
in the driver does not yet support requests with a zero byte payload.
To use this driver currently, the "uwire" configuration must be used
along with explicitly enabling support for lookaside crypto capabilities
in the cxgbe(4) driver. These can be done by setting the following
tunables before loading the cxgbe(4) driver:
hw.cxgbe.config_file=uwire
hw.cxgbe.cryptocaps_allowed=-1
MFC after: 1 month
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D10763
111 lines
3.2 KiB
Groff
111 lines
3.2 KiB
Groff
.\" Copyright (c) 2017, Chelsio Inc
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 16, 2017
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.Dt CCR 4
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.Os
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.Sh NAME
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.Nm ccr
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.Nd "Chelsio T6 crypto accelerator driver"
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indeunt
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.Cd "device ccr"
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.Ed
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.Pp
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To load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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ccr_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the crypto accelerator engine included on
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PCI Express Ethernet adapters based on the Chelsio Terminator 6 ASIC (T6).
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The driver accelerates AES-CBC, AES-CTR, AES-GCM, AES-XTS, SHA1-HMAC,
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SHA2-256-HMAC, SHA2-384-HMAC, and SHA2-512-HMAC operations for
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.Xr crypto 4
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and
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.Xr ipsec 4 .
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The driver also supports chaining one of AES-CBC, AES-CTR, or AES-XTS with
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SHA1-HMAC, SHA2-256-HMAC, SHA2-384-HMAC, or SHA2-512-HMAC for
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encrypt-then-authenticate operations.
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For further hardware information and questions related to hardware
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requirements, see
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.Pa http://www.chelsio.com/ .
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.Pp
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The
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.Nm
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driver attaches as a child of an existing Chelsio NIC device and thus
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requires that the
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.Xr cxgbe 4
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driver be active.
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.Sh HARDWARE
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The
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.Nm
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driver supports the crypto accelerator engine included on adapters
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based on the T6 ASIC:
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.Pp
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.Bl -bullet -compact
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.It
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Chelsio T6225-CR
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.It
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Chelsio T6225-SO-CR
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.It
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Chelsio T62100-LP-CR
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.It
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Chelsio T62100-SO-CR
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.It
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Chelsio T62100-CR
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.El
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.Sh SUPPORT
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For general information and support,
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go to the Chelsio support website at:
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.Pa http://www.chelsio.com/ .
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.Pp
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If an issue is identified with this driver with a supported adapter,
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email all the specific information related to the issue to
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.Aq Mt support@chelsio.com .
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.Sh SEE ALSO
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.Xr crypto 4 ,
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.Xr cxgbe 4 ,
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.Xr ipsec 4
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 12.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An John Baldwin Aq Mt jhb@FreeBSD.org .
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