kern/128833: [bge] Network packets corrupted when bge card is in 64-bit PCI slot

[Brad]

On Tuesday 18 November 2008 17:50:04 Marius Strobl wrote:
> The following reply was made to PR kern/128833; it has been noted by GNATS.
>
> From: Marius Strobl <marius at alchemy.franken.de>
> To: =?unknown-8bit?Q?Aur=E9lien_M=E9r=E9?= <freebsd at amc-os.com>
> Cc: bug-followup at FreeBSD.org
> Subject: Re: kern/128833: [bge] Network packets corrupted when bge card is
> in 64-bit PCI slot Date: Tue, 18 Nov 2008 23:46:21 +0100
>
>  On Mon, Nov 17, 2008 at 02:37:51AM +0100, Aurlien Mr wrote:
>  > Hi
>  > As first check, when device is being attached, here are the values
>  > reported and the diff :
>  >
>  > in 32 bit slot :
>  > BGE_PCI_PCISTATE = 0x96 (0x86 | BGE_PCISTATE_32BIT_BUS)
>  > bge_flags = 0x120E (0x100E | BGE_FLAG_PCIX)
>  >
>  > in 64 bit slot :
>  > BGE_PCI_PCISTATE = 0x8E (0x86 | BGE_PCISTATE_PCI_BUSSPEED)
>  > bge_flags = 0x1A0E (0x100E | BGE_FLAG_PCIX | BGE_FLAG_64BIT)
>  >
>  > Seems logical so far, I'll try to look further.
>
>  Apart from the problem described by davidch@ (I'm not sure
>  you actually have a BCM5701 A3 though, at least bge(4) doesn't
>  seem to be aware of that revision) the BGE_PCI_PCISTATE and
>  bge_flags pairs you reported don't match though; according
>  to BGE_PCI_PCISTATE the card isn't in a PCI-X slot in either
>  case (BGE_PCISTATE_PCI_BUSMODE is always set, which means
>  PCI) and AFAICT your motherboard chipset also doesn't
>  support PCI-X. However, as you noted BGE_FLAG_PCIX is set
>  for whatever reason in both cases, which leads to some
>  inappropriate initialization of the controller. As a quick
>  test could you please check whether replacing the "#if
>  __FreeBSD_version > 602101" in the driver with an "#if 0"
>  makes any difference to your problem?

The PCI-X check which is used for I'm guessing FreeBSD 7 and
newer is wrong. Older versions get it right.

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