Re: [PATCH] net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)
From: Dan Williams <hidden>
Date: 2016-03-15 18:19:14
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On Tue, 2016-03-15 at 12:50 +0200, Netanel Belgazal wrote:
This is a driver for the Amazon ethernet ENA family. The driver operates variety of ENA adapters through feature negotiation with the adapter and upgradable commands set. ENA driver handles PCI Physical and Virtual ENA functions. The ENA device is not yet released to public. He is expected to be released soon. For the full specification of the device please refer to: <SPEC-PATH> Signed-off-by: Netanel Belgazal <redacted>
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diff --git a/Documentation/networking/ena.txtb/Documentation/networking/ena.txt new file mode 100644 index 0000000..f10e6db--- /dev/null +++ b/Documentation/networking/ena.txt@@ -0,0 +1,330 @@ +Linux kernel driver for Elastic Network Adapter (ENA) family: +============================================================= + +Overview: +========= +The ENA driver provides a modern Ethernet device interface optimized +for high performance and low CPU overhead. + +The ENA driver 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 wide range of ENA devices, is link-speed +independent (i.e., the same driver is used for 10GbE, 25GbE, 40GbE, +etc.), and it 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 allow high speed and low overhead Ethernet traffic +processing by providing a dedicated Tx/Rx queue pair per host CPU, a +dedicated MSI-X interrupt vector per Tx/Rx queue pair, adaptive +interrupt moderation, and CPU cacheline optimized data placement. + +The ENA driver supports industry standard TCP/IP offload featuressuch +as checksum offload and TCP transmit segmentation offload (TSO). + +Receive-side scaling (RSS) is supported for multi-core scaling.
Any chance it also supports VXLAN offload? Dan