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Date: Fri, 28 Feb 1997 16:24:25 +0900
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From: Masaya Kinoshita <mkino@po.iijnet.or.jp>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: <9702280558.AA16651@cinema.astem.or.jp>
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Subject: [FreeBSD-users-jp 10230] Re: [Q] Message from Network interface 
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$@#R#I#S(B $@$N(B $@LZ2<(B $@$G$9!#(B

$@LyFb(B $@$5$s!"%3%a%s%H$"$j$,$H$&$4$6$$$^$9!#(B

>>   if_ed.c$@$N%3%a%s%H$G$9!#(B
>> 
>>          /*
>>          * We have an entire 8k window to put the transmit buffers on the
>>          * 16bit boards. But since the 16bit 3c503's shared memory is only
>>          * fast enough to overlap the loading of one full-size packet, trying
>>          * to load more than 2 buffers can actually leave the transmitter idle
>>          * during the load. So 2 seems the best value. (Although a mix of
>>          * variable-sized packets might change this assumption. Nonetheless,
>>          * we optimize for linear transfers of same-size packets.)
>>          */

$@$A$g$C$H$h$/$o$+$i$J$$$N$G!"$H$j$"$($:Lu$7$F$_$^$7$?!#(B

         /*
         * $@2f!9$O(B 16bit $@%\!<%I$KE>Aw$9$k0Y$NA4It$G(B 8k $@$N%&%$%s%I%&$r;}$C$F$$$^(B
         * $@$9!#$7$+$7(B 16bit 3c503 $@$N6&M-%a%b%j$O(B 1 $@$D$N%U%k%5%$%:%Q%1%C%H$r%m!<(B
         * $@%I$9$k$N$K==J,$JB.$5$@$1$7$+$J$$$N$G!"(B2 $@$D0J>e$N%P%C%U%!$r%m!<%I$7$h(B
         * $@$&$H$9$k;v$G%m!<%ICf$K%H%i%s%9%_%C%?!<$r%"%$%I%k>uBV$N$^$^$K$9$k;v$,(B
         * $@=PMh$^$9!#=>$C$F!"(B2 $@$O:GE,$J(B value $@$H;W$o$l$^$9!#(B($@2DJQE*$J%5%$%:$N%Q(B
         * $@%1%C%H$,:.$8$k;v$G$3$N2>Dj$OJQ$o$k$+$b$7$l$^$;$s!#$=$l$K$b4X$o$i$:!"(B
         * $@2f!9$OF1$8%5%$%:$N%Q%1%C%H$N%j%K%"$JE>Aw$N$?$a$K:GE,2=$7$^$9!#(B)
         */

$@$=$l$G$b$h$/$o$+$i$J$$$N$G!"$A$g$C$HD4$Y$F$_$^$9!#(B(^^;

$@$G$O!#(B

---- $@8D?MMQ(B Signature --------------------------------------------------
                               $@LZ2<(B $@@5Li(B (PXI14346@niftyserve.or.jp    )
                                         (mkino@po.iijnet.or.jp        )
---- $@2q<RMQ(B Signature --------------------------------------------------
($@3t(B)$@%j%F%$%k!&%$%s%U%)%a!<%7%g%s!&%5!<%S%9(B
    $@%3%s%T%e!<%?!<<<=jB0(B  $@LZ2<(B $@@5Li(B(Masaya.Kinoshita@ris.co.jp)
    Tel.03-3380-8880 Fax.03-3380-8992
------------------------------------------------------------------------
