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Date:      Thu, 18 Jun 2020 20:22:04 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 247111] pxeboot very slow with i219LM
Message-ID:  <bug-247111-7501-2jICbSEeN4@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-247111-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-247111-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D247111

longwitz@incore.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |longwitz@incore.de

--- Comment #1 from longwitz@incore.de ---
Are you really sure your problem is caused by different NICs ?

I had the same problem and the slowness came from incoming ARPs. In a netwo=
rk
without ARP traffic pxeboot had normal speed.

I could solve my problem with the following patch for V12.1 Stable:

--- pxe.c.orig  2019-01-13 08:25:55.000000000 +0100
+++ pxe.c       2020-06-15 21:30:19.000000000 +0200
@@ -424,7 +424,7 @@
        if (undi_open_p =3D=3D NULL)
                return;
        bzero(undi_open_p, sizeof(*undi_open_p));
-       undi_open_p->PktFilter =3D FLTR_DIRECTED | FLTR_BRDCST;
+       undi_open_p->PktFilter =3D FLTR_DIRECTED;
        pxe_call(PXENV_UNDI_OPEN, undi_open_p);
        if (undi_open_p->Status !=3D 0)
                printf("undi open failed: %x\n", undi_open_p->Status);

For more info see
  https://lists.freebsd.org/pipermail/freebsd-net/2020-June/056025.html

Andreas Longwitz

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