Re: TCP Segmentation Offloading (TSO)

[David S. Miller]

   From: "H. Peter Anvin" <[e-mail]>
   Date: 3 Sep 2002 18:02:17 -0700

   Followup to:  <[e-mail]>
   By author:    Hirokazu Takahashi <[e-mail]>
   In newsgroup: linux.dev.kernel
   > 
   > P.S.
   >     Using "bswap" is little bit tricky.
   > 
   
   It needs to be protected by CONFIG_I486 and alternate code implemented
   for i386 (xchg %al,%ah; rol $16,%eax, xchg %al,%ah for example.)
   
He only used bswap in the P-II/PPRO csum_partial, which is
ifdef protected.