[Bug 247111] pxeboot very slow with i219LM

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247111

longwitz at incore.de changed:

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

--- Comment #1 from longwitz at 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 network
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 == NULL)
                return;
        bzero(undi_open_p, sizeof(*undi_open_p));
-       undi_open_p->PktFilter = FLTR_DIRECTED | FLTR_BRDCST;
+       undi_open_p->PktFilter = FLTR_DIRECTED;
        pxe_call(PXENV_UNDI_OPEN, undi_open_p);
        if (undi_open_p->Status != 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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