Date: Mon, 1 Sep 1997 15:58:28 -0300 (EST) From: Joao Carlos Mendes Luis <jonny@mailhost.coppe.ufrj.br> To: jhay@mikom.csir.co.za (John Hay) Cc: jonny@mailhost.coppe.ufrj.br, hackers@FreeBSD.ORG Subject: Re: IPX problems Message-ID: <199709011858.PAA08958@gaia.coppe.ufrj.br> In-Reply-To: <199709011630.SAA28625@zibbi.mikom.csir.co.za> from John Hay at "Sep 1, 97 06:30:18 pm"
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// > Here's an output of my ifconfig:
// >
// ...
// > vx0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu 1500
// > inet 146.164.63.4 netmask 0xffffff00 broadcast 146.164.63.255
// > ipx 92a43f00.60H
// > ether 00:60:97:a7:ab:42
// ...
// >
// > Why does the vx0 interface gets the .60H node address instead of 006097a7ab42 ?
//
// I would guess that it is because the vx driver define struct vx_softc
// with something before struct arpcom. As far as I know it should start
// its structure with "struct arpcom", because the arp code and also
// ether_ioctl depends on it being right at the beginning. Try moving
// "struct arpcom arpcom" to before "int unit" in "struct vx_softc" in
// the file sys/dev/vx/if_vx_reg.h.
It works. Thanks.
May someone commit this to RELENG_2_2 ?
===========================================================================
--- dev/vx/if_vxreg.h.old Mon Sep 1 15:53:31 1997
+++ dev/vx/if_vxreg.h Mon Sep 1 15:44:09 1997
@@ -49,8 +49,8 @@
* Ethernet software status per interface.
*/
struct vx_softc {
- int unit; /* unit number */
struct arpcom arpcom; /* Ethernet common part */
+ int unit; /* unit number */
u_int vx_io_addr; /* i/o bus address */
#define MAX_MBS 8 /* # of mbufs we keep around */
struct mbuf *mb[MAX_MBS]; /* spare mbuf storage. */
===========================================================================
Anyway, John, isn't it wrong to assume relative positions of data
in a struct ?
//
// John
// --
// John Hay -- John.Hay@mikom.csir.co.za
//
Jonny
--
Joao Carlos Mendes Luis jonny@gta.ufrj.br
+55 21 290-4698 jonny@coppe.ufrj.br
Universidade Federal do Rio de Janeiro UFRJ/COPPE/CISI
PGP fingerprint: 29 C0 50 B9 B6 3E 58 F2 83 5F E3 26 BF 0F EA 67
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