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| author | Zbigniew Bodek <zbb@FreeBSD.org> | 2017-05-22 14:46:13 +0000 |
|---|---|---|
| committer | Zbigniew Bodek <zbb@FreeBSD.org> | 2017-05-22 14:46:13 +0000 |
| commit | 9b8d05b8ac78509e8c4b9f6f1e71c873b38a06b9 (patch) | |
| tree | fef29a5d8c522cbf9e007c4de0d59bc55104b53b /sys/modules/Makefile | |
| parent | fefd0439636bf1ed392a33a3a0ebd049296411c1 (diff) | |
| download | src-9b8d05b8ac78509e8c4b9f6f1e71c873b38a06b9.tar.gz src-9b8d05b8ac78509e8c4b9f6f1e71c873b38a06b9.zip | |
Add support for Amazon Elastic Network Adapter (ENA) NIC
ENA is a networking interface designed to make good use of modern CPU
features and system architectures.
The ENA device exposes a lightweight management interface with a
minimal set of memory mapped registers and extendable command set
through an Admin Queue.
The driver supports a range of ENA devices, is link-speed independent
(i.e., the same driver is used for 10GbE, 25GbE, 40GbE, etc.), and has
a negotiated and extendable feature set.
Some ENA devices support SR-IOV. This driver is used for both the
SR-IOV Physical Function (PF) and Virtual Function (VF) devices.
ENA devices enable high speed and low overhead network traffic
processing by providing multiple Tx/Rx queue pairs (the maximum number
is advertised by the device via the Admin Queue), a dedicated MSI-X
interrupt vector per Tx/Rx queue pair, and CPU cacheline optimized
data placement.
The ENA driver supports industry standard TCP/IP offload features such
as checksum offload and TCP transmit segmentation offload (TSO).
Receive-side scaling (RSS) is supported for multi-core scaling.
The ENA driver and its corresponding devices implement health
monitoring mechanisms such as watchdog, enabling the device and driver
to recover in a manner transparent to the application, as well as
debug logs.
Some of the ENA devices support a working mode called Low-latency
Queue (LLQ), which saves several more microseconds. This feature will
be implemented for driver in future releases.
Submitted by: Michal Krawczyk <mk@semihalf.com>
Jakub Palider <jpa@semihalf.com>
Jan Medala <jan@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon.com Inc.
Differential revision: https://reviews.freebsd.org/D10427
Notes
Notes:
svn path=/head/; revision=318647
Diffstat (limited to 'sys/modules/Makefile')
| -rw-r--r-- | sys/modules/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/modules/Makefile b/sys/modules/Makefile index ce843a51adaa..09ec8a702ec4 100644 --- a/sys/modules/Makefile +++ b/sys/modules/Makefile @@ -107,6 +107,7 @@ SUBDIR= \ ${_efirt} \ ${_elink} \ ${_em} \ + ${_ena} \ ${_ep} \ ${_epic} \ esp \ @@ -566,6 +567,7 @@ _drm= drm _drm2= drm2 _ed= ed _em= em +_ena= ena _ep= ep _et= et _exca= exca |