Date: Mon, 18 Sep 2006 02:06:09 +0400 From: Ruslan Ermilov <ru@FreeBSD.org> To: Andre Oppermann <andre@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/bce if_bce.c src/sys/dev/bge if_bge.c src/sys/dev/em if_em.c src/sys/dev/ixgb if_ixgb.c src/sys/dev/nfe if_nfe.c src/sys/dev/nge if_nge.c src/sys/dev/re if_re.c src/sys/dev/stge if_stge.c src/sys/dev/ti if_ti.c src/sys/dev/txp ... Message-ID: <20060917220609.GA84871@rambler-co.ru> In-Reply-To: <200609171333.k8HDXUht029746@repoman.freebsd.org> References: <200609171333.k8HDXUht029746@repoman.freebsd.org>
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--NzB8fVQJ5HfG6fxh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Sep 17, 2006 at 01:33:30PM +0000, Andre Oppermann wrote: > andre 2006-09-17 13:33:30 UTC [...] > Move ethernet VLAN tags from mtags to its own mbuf packet header field > m_pkthdr.ether_vlan. The presence of the M_VLANTAG flag on the mbuf > signifies the presence and validity of its content. > =20 > Drivers that support hardware VLAN tag stripping fill in the received > VLAN tag (containing both vlan and priority information) into the > ether_vtag mbuf packet header field: > =20 > m->m_pkthdr.ether_vtag =3D vlan_id; /* ntohs()? */ > m->m_flags |=3D M_VLANTAG; > =20 > to mark the packet m with the specified VLAN tag. > =20 > On output the driver should check the mbuf for the M_VLANTAG flag to > see if a VLAN tag is present and valid: > =20 > if (m->m_flags & M_VLANTAG) { > ... =3D m->m_pkthdr.ether_vtag; /* htons()? */ > ... pass tag to hardware ... > } > =20 > VLAN tags are stored in host byte order. Byte swapping may be necessar= y. > =20 > (Note: This driver conversion was mechanic and did not add or remove any > byte swapping in the drivers.) > =20 > Remove zone_mtag_vlan UMA zone and MTAG_VLAN definition. No more tag > memory allocation have to be done. > =20 > Reviewed by: thompsa, yar > Sponsored by: TCP/IP Optimization Fundraise 2005 > =20 I think this deserved a __FreeBSD_version bump for third-party Ethernet drivers, since this change removes public interfaces such as VLAN_INPUT_TAG() and VLAN_OUTPUT_TAG(). Cheers, --=20 Ruslan Ermilov ru@FreeBSD.org FreeBSD committer --NzB8fVQJ5HfG6fxh Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFDcbRqRfpzJluFF4RApW6AKCSeuQ719KD6OL2kAgMWc5XZE6wQQCeNKT0 w9bYgImUST7hIP0nw8+LTQ0= =cp+x -----END PGP SIGNATURE----- --NzB8fVQJ5HfG6fxh--
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