src/sys/dev/al_eth, branch releng/12.4

al_eth: Fix a typo in a source code comment

2022-06-10T12:35:03Z

- s/enought/enough/ (cherry picked from commit 45b143d2ea5fb0389304cc918781e98696a4b48f)

al_eth: Remove a double word in a source code comment

2022-04-14T06:27:08Z

- s/for for/for/ (cherry picked from commit 6a734168cb819cf2ea781a1e2fd83dc12adb0bd6)

Use ip/ipv6 structures in al_eth only if they are supported

2018-08-28T17:09:41Z

The ip/ipv6 header files are included only if the appropriate definition exists, but the driver was missing similar checks when using the ip and ip6_hdr structures. If the kernel was not built with the INET or INET6 option, the driver was preventing kernel from being built. To fix that, the missing ifdef checks were added to the driver. PR: Bug 230886 Submitted by: Michal Krawczyk Reported by: O. Hartmann Approved by: re (gjb) Obtained from: Semihalf MFC after: 1 week Sponsored by: Amazon, Inc.

ifnet: Replace if_addr_lock rwlock with epoch + mutex

2018-05-18T20:13:34Z

Run on LLNW canaries and tested by pho@ gallatin: Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5 based ConnectX 4-LX NIC, I see an almost 12% improvement in received packet rate, and a larger improvement in bytes delivered all the way to userspace. When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1, I see, using nstat -I mce0 1 before the patch: InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 4.98 0.00 4.42 0.00 4235592 33 83.80 4720653 2149771 1235 247.32 4.73 0.00 4.20 0.00 4025260 33 82.99 4724900 2139833 1204 247.32 4.72 0.00 4.20 0.00 4035252 33 82.14 4719162 2132023 1264 247.32 4.71 0.00 4.21 0.00 4073206 33 83.68 4744973 2123317 1347 247.32 4.72 0.00 4.21 0.00 4061118 33 80.82 4713615 2188091 1490 247.32 4.72 0.00 4.21 0.00 4051675 33 85.29 4727399 2109011 1205 247.32 4.73 0.00 4.21 0.00 4039056 33 84.65 4724735 2102603 1053 247.32 After the patch InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 5.43 0.00 4.20 0.00 3313143 33 84.96 5434214 1900162 2656 245.51 5.43 0.00 4.20 0.00 3308527 33 85.24 5439695 1809382 2521 245.51 5.42 0.00 4.19 0.00 3316778 33 87.54 5416028 1805835 2256 245.51 5.42 0.00 4.19 0.00 3317673 33 90.44 5426044 1763056 2332 245.51 5.42 0.00 4.19 0.00 3314839 33 88.11 5435732 1792218 2499 245.52 5.44 0.00 4.19 0.00 3293228 33 91.84 5426301 1668597 2121 245.52 Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15366

Do pass removing some write-only variables from the kernel.

2017-12-25T04:48:39Z

This reduces noise when kernel is compiled by newer GCC versions, such as one used by external toolchain ports. Reviewed by: kib, andrew(sys/arm and sys/arm64), emaste(partial), erj(partial) Reviewed by: jhb (sys/dev/pci/* sys/kern/vfs_aio.c and sys/kern/kern_synch.c) Differential Revision: https://reviews.freebsd.org/D10385

sys/dev: Replace zero with NULL for pointers.

2017-02-20T03:43:12Z

Makes things easier to read, plus architectures may set NULL to something different than zero. Found with: devel/coccinelle MFC after: 3 weeks

Driver for PCI Ethernet NIC on Alpine V1 and V2.

2016-10-20T11:31:11Z

Obtained from: Semihalf Submitted by: Michal Stanek Sponsored by: Annapurna Labs Reviewed by: wma Differential Revision: https://reviews.freebsd.org/D7814