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NetBSD/sys/net/agr/if_agrether.c

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/* $NetBSD: if_agrether.c,v 1.8 2009/06/09 22:26:49 yamt Exp $ */
/*-
* Copyright (c)2005 YAMAMOTO Takashi,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_agrether.c,v 1.8 2009/06/09 22:26:49 yamt Exp $");
#include <sys/param.h>
#include <sys/callout.h>
#include <sys/mbuf.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <net/agr/if_agrvar_impl.h>
#include <net/agr/if_agrethervar.h>
#include <net/agr/if_agrsubr.h>
#include <net/agr/ieee8023_slowprotocols.h>
#include <net/agr/ieee8023_tlv.h>
#include <net/agr/ieee8023ad.h>
#include <net/agr/ieee8023ad_lacp.h>
#include <net/agr/ieee8023ad_lacp_impl.h>
#include <net/agr/ieee8023ad_impl.h>
static int agrether_ctor(struct agr_softc *, struct ifnet *);
static void agrether_dtor(struct agr_softc *);
static int agrether_portinit(struct agr_softc *, struct agr_port *);
static int agrether_portfini(struct agr_softc *, struct agr_port *);
static struct agr_port *agrether_select_tx_port(struct agr_softc *,
struct mbuf *);
static int agrether_configmulti_port(struct agr_softc *, struct agr_port *,
bool);
static int agrether_configmulti_ifreq(struct agr_softc *, struct ifreq *,
bool);
const struct agr_iftype_ops agrether_ops = {
.iftop_tick = NULL,
.iftop_porttick = ieee8023ad_lacp_porttick,
.iftop_portstate = ieee8023ad_lacp_portstate,
.iftop_ctor = agrether_ctor,
.iftop_dtor = agrether_dtor,
.iftop_portinit = agrether_portinit,
.iftop_portfini = agrether_portfini,
.iftop_hashmbuf = agrether_hashmbuf,
.iftop_select_tx_port = agrether_select_tx_port,
.iftop_configmulti_port = agrether_configmulti_port,
.iftop_configmulti_ifreq = agrether_configmulti_ifreq
};
struct agrether_private {
struct ieee8023ad_softc aep_ieee8023ad_softc;
struct agr_multiaddrs aep_multiaddrs;
};
struct agrether_port_private {
struct ieee8023ad_port aepp_ieee8023ad_port;
};
static int
agrether_ctor(struct agr_softc *sc, struct ifnet *ifp_port)
{
struct ifnet *ifp = &sc->sc_if;
struct ethercom *ec = (void *)ifp;
struct agrether_private *priv;
priv = malloc(sizeof(*priv), M_DEVBUF, M_NOWAIT | M_ZERO);
if (!priv)
return ENOMEM;
agr_mc_init(sc, &priv->aep_multiaddrs);
sc->sc_iftprivate = priv;
/*
* inherit ports capabilities
* XXX this really needs to be the intersection of all
* ports capabilities, not just the latest port.
* Okay if ports are the same.
*/
ifp->if_capabilities = ifp_port->if_capabilities &
(IFCAP_TSOv4 | IFCAP_TSOv6 |
IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx |
IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx |
IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_UDPv4_Rx |
IFCAP_CSUM_TCPv6_Tx | IFCAP_CSUM_TCPv6_Rx |
IFCAP_CSUM_UDPv6_Tx | IFCAP_CSUM_UDPv6_Rx);
ether_ifattach(ifp, CLLADDR(ifp_port->if_sadl));
ec->ec_capabilities =
ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING | ETHERCAP_JUMBO_MTU;
ieee8023ad_ctor(sc);
return 0;
}
static void
agrether_dtor(struct agr_softc *sc)
{
struct agrether_private *priv = sc->sc_iftprivate;
if (priv == NULL) {
return;
}
ieee8023ad_dtor(sc);
agr_mc_purgeall(sc, &priv->aep_multiaddrs);
free(priv, M_DEVBUF);
sc->sc_iftprivate = NULL;
}
static int
agrether_portinit(struct agr_softc *sc, struct agr_port *port)
{
struct ifreq ifr;
struct agrether_port_private *priv;
int error;
struct ethercom *ec = (void *)&sc->sc_if;
struct ethercom *ec_port = (void *)port->port_ifp;
port->port_media = IFM_ETHER | IFM_NONE;
/*
* XXX it's better to always advertise ETHERCAP_VLAN_HWTAGGING
* and do tag insertion by ourselves if necessary,
* so that we can mix devices with different capabilities.
* ditto about if_capabilities.
*/
if (ec->ec_capabilities &
~ec_port->ec_capabilities &
(ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING)) {
if (ec->ec_nvlans > 0) {
return EINVAL;
}
ec->ec_capabilities &=
ec_port->ec_capabilities |
~(ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING);
}
/* Enable vlan support */
if ((ec->ec_nvlans > 0) &&
ec_port->ec_nvlans++ == 0 &&
(ec_port->ec_capabilities & ETHERCAP_VLAN_MTU) != 0) {
struct ifnet *p = port->port_ifp;
/*
* Enable Tx/Rx of VLAN-sized frames.
*/
ec_port->ec_capenable |= ETHERCAP_VLAN_MTU;
if (p->if_flags & IFF_UP) {
ifr.ifr_flags = p->if_flags;
error = (*p->if_ioctl)(p, SIOCSIFFLAGS,
(void *) &ifr);
if (error) {
if (ec_port->ec_nvlans-- == 1)
ec_port->ec_capenable &=
~ETHERCAP_VLAN_MTU;
return (error);
}
}
}
/* XXX ETHERCAP_JUMBO_MTU */
priv = malloc(sizeof(*priv), M_DEVBUF, M_WAITOK | M_ZERO);
if (priv == NULL) {
return ENOMEM;
}
port->port_iftprivate = priv;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr);
ifr.ifr_addr.sa_family = AF_UNSPEC;
KASSERT(sizeof(ifr.ifr_addr) >=
sizeof(ethermulticastaddr_slowprotocols));
memcpy(&ifr.ifr_addr.sa_data,
&ethermulticastaddr_slowprotocols,
sizeof(ethermulticastaddr_slowprotocols));
error = agrport_ioctl(port, SIOCADDMULTI, (void *)&ifr);
if (error) {
free(port->port_iftprivate, M_DEVBUF);
port->port_iftprivate = NULL;
return error;
}
ieee8023ad_portinit(port);
return error;
}
static int
agrether_portfini(struct agr_softc *sc, struct agr_port *port)
{
struct ifreq ifr;
struct ethercom *ec_port = (void *)port->port_ifp;
int error;
if (port->port_iftprivate == NULL) {
return 0;
}
if (ec_port->ec_nvlans > 0) {
/* Disable vlan support */
ec_port->ec_nvlans = 0;
/*
* Disable Tx/Rx of VLAN-sized frames.
*/
ec_port->ec_capenable &= ~ETHERCAP_VLAN_MTU;
if (port->port_ifp->if_flags & IFF_UP) {
ifr.ifr_flags = port->port_ifp->if_flags;
(void) (*port->port_ifp->if_ioctl)(port->port_ifp,
SIOCSIFFLAGS, (void *) &ifr);
}
}
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr);
ifr.ifr_addr.sa_family = AF_UNSPEC;
KASSERT(sizeof(ifr.ifr_addr) >=
sizeof(ethermulticastaddr_slowprotocols));
memcpy(&ifr.ifr_addr.sa_data,
&ethermulticastaddr_slowprotocols,
sizeof(ethermulticastaddr_slowprotocols));
error = agrport_ioctl(port, SIOCDELMULTI, (void *)&ifr);
if (error) {
return error;
}
ieee8023ad_portfini(port);
free(port->port_iftprivate, M_DEVBUF);
port->port_iftprivate = NULL;
return error;
}
static int
agrether_configmulti_port(struct agr_softc *sc, struct agr_port *port,
bool add)
{
struct agrether_private *priv = sc->sc_iftprivate;
return agr_configmulti_port(&priv->aep_multiaddrs, port, add);
}
static int
agrether_configmulti_ifreq(struct agr_softc *sc, struct ifreq *ifr,
bool add)
{
struct agrether_private *priv = sc->sc_iftprivate;
return agr_configmulti_ifreq(sc, &priv->aep_multiaddrs, ifr, add);
}
/* -------------------- */
static struct agr_port *
agrether_select_tx_port(struct agr_softc *sc, struct mbuf *m)
{
return ieee8023ad_select_tx_port(sc, m);
}
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