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Date:      Tue, 12 Oct 2004 11:24:03 -0500 (EST)
From:      Sam <sah@softcardsystems.com>
To:        freebsd-arch@freebsd.org, freebsd-current@freebsd.org
Subject:   mbuf w/o pkthdr?
Message-ID:  <Pine.LNX.4.60.0410121115430.30953@athena>

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Hello -

src/sys/i386/i386/busdma_machdep.c:/^bus_dmamap_load_mbuf/
prohibits loading an mbuf that does not contain a packet
header.  Some drivers use this (xl), some don't (fxp).

Are all packets supposed to have the M_PKTHDR flag?  Why?

Cheers,

Sam



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