[Bug 240945] [patch] [hyperv] [netvsc] hn network driver incorrectly detects baudrate

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Mon Sep 30 17:20:54 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240945

            Bug ID: 240945
           Summary: [patch] [hyperv] [netvsc] hn network driver
                    incorrectly detects baudrate
           Product: Base System
           Version: 11.3-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: geostel at gmail.com

Hi!
I have VM with latests pfsense, I was curious why net incorrectly detects link
speed ( 10 gbps instead 25gbps), 
had found that baudrate was manually hardcoded in driver.
By that line:
        ifp->if_baudrate = IF_Gbps(10);
in:
https://github.com/freebsd/freebsd/commit/e57ec55e201d11e94f8ef77f0eee70cbe212ca28

Since networking moving forward it would be great to detect link speeds
correctly and allow more than 10 gbps in hyper-v vms.

P.S.
My hypervsiros using win 2019, and QLogic FastLinQ QL41212HLCU Dual-Port 25GbE
Adapters

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