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* ena: Update license signatures to 2024Osama Abboud2024-10-151-1/+1
| | | | | | | | This commit updates all the license signatures to 2024. Approved by: cperciva (mentor) MFC after: 2 weeks Sponsored by: Amazon, Inc.
* ena: Update the license dating to 2023Osama Abboud2023-12-281-1/+1
| | | | | | | | | Some of the files are using outdated linceses. Update the license to be 2023. Approved by: cperciva (mentor) MFC after: 2 weeks Sponsored by: Amazon, Inc.
* sys: Remove $FreeBSD$: one-line sh patternWarner Losh2023-08-161-1/+0
| | | | Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
* ena: Move RSS logic into its own source filesArtur Rojek2021-09-011-1/+1
| | | | | | | | | | | | Delegate RSS related functionality into separate .c/.h files in preparation for the full RSS support. While at it, reorder functions and remove prototypes for ones with internal linkage. Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc.
* Add SPDX license tag to the ENA driver filesMarcin Wojtas2020-11-181-2/+2
| | | | | | | | | | | | | | | | | | Refering to guide: https://wiki.freebsd.org/SPDX the SPDX tag should not replace the standard license text, however it should be added over the standard license text to make the automation easier. Because of that, the old license was kept, but the SPDX tag was added on top of every ENA driver file. Submited by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf Sponsored by: Amazon, Inc MFC after: 1 week Differential revision: https://reviews.freebsd.org/D27117 Notes: svn path=/head/; revision=367801
* ena: fix module build after r362530Andriy Gapon2020-06-261-0/+1
| | | | | | | | | | | Somehow I missed the makefile when moving the change from phabricator to svn. MFC after: 1 week X-MFC with: r362530 Notes: svn path=/head/; revision=362645
* Introduce NETMAP support in ENAMarcin Wojtas2019-10-311-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mock implementation of NETMAP routines is located in ena_netmap.c/.h files. All code is protected under the DEV_NETMAP macro. Makefile was updated with files and flag. As ENA driver provide own implementations of (un)likely it must be undefined before including NETMAP headers. ena_netmap_attach function is called on the end of NIC attach. It fills structure with NIC configuration and callbacks. Then provides it to netmap_attach. Similarly netmap_detach is called during ena_detach. Three callbacks are used. nm_register is implemented by ena_netmap_reg. It is called when user space application open or close NIC in NETMAP mode. Current action is recognized based on onoff parameter: true means on and false off. As NICs rings need to be reconfigured ena_down and ena_up are reused. When user space application wants to receive new packets from NIC nm_rxsync is called, and when there are new packets ready for Tx nm_txsync is called. Differential Revision: https://reviews.freebsd.org/D21934 Submitted by: Rafal Kozik <rk@semihalf.com> Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf Sponsored by: Amazon, Inc. Notes: svn path=/head/; revision=354221
* Split Rx/Tx from initialization code in ENA driverMarcin Wojtas2019-10-311-1/+1
| | | | | | | | | | | | | | | | | | | | Move Rx/Tx routines to separate file. Some functions: * ena_restore_device, * ena_destroy_device, * ena_up, * ena_down, * ena_refill_rx_bufs could be reused in upcoming netmap code in the driver. To make it possible, they were moved to ena.h header. Differential Revision: https://reviews.freebsd.org/D21933 Submitted by: Rafal Kozik <rk@semihalf.com> Obtained from: Semihalf Sponsored by: Amazon, Inc. Notes: svn path=/head/; revision=354220
* Update ENA version to v2.0.0Marcin Wojtas2019-05-301-1/+1
| | | | | | | | | | | | | | | | ENAv2 introduces many new features, bug fixes and improvements. Main new features are LLQ (Low Latency Queues) and independent queues reconfiguration using sysctl commands. The year in copyright notice was updated to 2019. Submitted by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf Sponsored by: Amazon, Inc. Notes: svn path=/head/; revision=348416
* Add support for Amazon Elastic Network Adapter (ENA) NICZbigniew Bodek2017-05-221-0/+41
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: svn path=/head/; revision=318647
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