busdma MFC broke ipfw fwd for RELENG_6

[YongHyeon PYUN]

On Sun, Sep 18, 2011 at 03:11:46AM +0700, Eugene Grosbein wrote:
> 18.09.2011 03:05, YongHyeon PYUN пишет:
> 
> >>> I have back-ported re(4)/rl(4) for latest 6.x.
> >>> http://people.freebsd.org/~yongari/re/6.x/README.txt
> >>> Just compile tested and not sure whether it fixes the issue.
> >>
> >> I confirm that the problem disappears using this driver with clean RELENG_6 sources
> >> and RealTek 8169/8169S/8169SB(L)/8110S/8110SB(L) Gigabit Ethernet:
> >>
> >> re0 at pci1:11:0:  class=0x020000 card=0x816910ec chip=0x816910ec rev=0x10 hdr=0x00
> >>     vendor     = 'Realtek Semiconductor'
> >>     device     = 'RTL8110SB Single-Chip Gigabit LOM Ethernet Controller'
> >>     class      = network
> >>     subclass   = ethernet
> >>     cap 01[dc] = powerspec 2  supports D0 D1 D2 D3  current D0
> >>
> >> Also, this machine uses RT8139 (rl0) for its LAN and it works too.
> > 
> > Glad to hear that. Unfortunately I have no plan or time to merge
> > all changes made in re(4)/rl(4) to stable/6 so you may have to
> > stick to this unofficial driver. As you already know, I overhauled
> > these drivers long time ago and there were too many changes.
> 
> Well, given that before busdma commit that hardware worked just fine with stock driver,
> it could be less overhead for me to rollback that one busdma small chunk :-)
> Who knows, which drivers got broken then in 2010 in 6.4-STABLE with busdma change besides re(4)...

I agree but that MFC may have fixed bugs in other driver which
correctly used bus_dma(9) KPI.