Date: Mon, 17 May 2004 06:38:44 -0500 (CDT) From: Scott Pilz <scottp@tznet.com> To: current@freebsd.org Subject: Re: hostap TX fix in 5.x [Fwd: Re: wi hostap speed] Message-ID: <20040517063129.J10292@mail.tznet.com> In-Reply-To: <40A85B24.1000300@mikulas.com> References: <20040516210816.M45998@acelere.net> <40A85B24.1000300@mikulas.com>
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Who normally works on the wi driver? "frmhdr.wi_tx_rate = 110"
works great (thanks James) but I am unable to find the syntax/variable
where the current TX-RATE is stored. A simple if tx-rate=11 {
frmhdr.wi_tx_rate = 110; } would keep auto-fallback working. Currently the
system works great (I seen as far as 600KB/sec last night during testing)
but when the signal drops and the driver tries for 5.5 or 2, packets are
lost. I recall in earlier releases of 5.x there was a 'DataRate' display
on 'wicontrol -l', however in CURRENT this seems to be missing.
Scott
On Mon, 17 May 2004, Jiri Mikulas wrote:
> Thanks!
> for your time ;)
> Jiri
>
> James Bowman wrote:
>
> >I spent a few hours tinkering (tampering?) with this driver, and have not
> >exactly a fix, but a clear indication of what the problem is.
> >
> >Verified (using the quick hack below): download speed geoes up from 170
> >kbytes/sec to 470 kbytes/sec, which is what I'd expect on an 11Mbps network.
> >
> >If anyone's interested, here it is:
> >
> >The Intersil manual on page 4-28 says that transmit packets need to have their
> >TxRate field filled in with 10,20,55 or 110, depending on the transmission speed.
> >
> >The 4.X driver sets the field tx_frame.wi_tx_rate in function
> >wihap_check_tx(), called from wi_start().
> >
> >The 5.X driver calls this field frmhdr.wi_tx_rate, but leaves it zero.
> >If you want to run at 11MBps, add a line
> > frmhdr.wi_tx_rate = 110;
> >in wi_start(), just before the call to wi_write_bap().
> >
> >(Obviously, this is just a cheesy hack. The real code would have to find the
> >actual tx rate. I just want to point out where the problem lies).
> >_______________________________________________
> >freebsd-current@freebsd.org mailing list
> >http://lists.freebsd.org/mailman/listinfo/freebsd-current
> >To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
> >
> >
>
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