if_agrether.c revision 1.10
1 /* $NetBSD: if_agrether.c,v 1.10 2017/12/06 04:37:00 ozaki-r Exp $ */ 2 3 /*- 4 * Copyright (c)2005 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: if_agrether.c,v 1.10 2017/12/06 04:37:00 ozaki-r Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/callout.h> 34 #include <sys/mbuf.h> 35 #include <sys/sockio.h> 36 37 #include <net/if.h> 38 #include <net/if_dl.h> 39 #include <net/if_ether.h> 40 #include <net/if_media.h> 41 42 #include <net/agr/if_agrvar_impl.h> 43 #include <net/agr/if_agrethervar.h> 44 #include <net/agr/if_agrsubr.h> 45 46 #include <net/agr/ieee8023_slowprotocols.h> 47 #include <net/agr/ieee8023_tlv.h> 48 #include <net/agr/ieee8023ad.h> 49 #include <net/agr/ieee8023ad_lacp.h> 50 #include <net/agr/ieee8023ad_lacp_impl.h> 51 #include <net/agr/ieee8023ad_impl.h> 52 53 static int agrether_ctor(struct agr_softc *, struct ifnet *); 54 static void agrether_dtor(struct agr_softc *); 55 static int agrether_portinit(struct agr_softc *, struct agr_port *); 56 static int agrether_portfini(struct agr_softc *, struct agr_port *); 57 static struct agr_port *agrether_select_tx_port(struct agr_softc *, 58 struct mbuf *); 59 static int agrether_configmulti_port(struct agr_softc *, struct agr_port *, 60 bool); 61 static int agrether_configmulti_ifreq(struct agr_softc *, struct ifreq *, 62 bool); 63 64 const struct agr_iftype_ops agrether_ops = { 65 .iftop_tick = NULL, 66 .iftop_porttick = ieee8023ad_lacp_porttick, 67 .iftop_portstate = ieee8023ad_lacp_portstate, 68 .iftop_ctor = agrether_ctor, 69 .iftop_dtor = agrether_dtor, 70 .iftop_portinit = agrether_portinit, 71 .iftop_portfini = agrether_portfini, 72 .iftop_hashmbuf = agrether_hashmbuf, 73 .iftop_select_tx_port = agrether_select_tx_port, 74 .iftop_configmulti_port = agrether_configmulti_port, 75 .iftop_configmulti_ifreq = agrether_configmulti_ifreq 76 }; 77 78 struct agrether_private { 79 struct ieee8023ad_softc aep_ieee8023ad_softc; 80 struct agr_multiaddrs aep_multiaddrs; 81 }; 82 83 struct agrether_port_private { 84 struct ieee8023ad_port aepp_ieee8023ad_port; 85 }; 86 87 static int 88 agrether_ctor(struct agr_softc *sc, struct ifnet *ifp_port) 89 { 90 struct ifnet *ifp = &sc->sc_if; 91 struct ethercom *ec = (void *)ifp; 92 struct agrether_private *priv; 93 94 priv = malloc(sizeof(*priv), M_DEVBUF, M_NOWAIT | M_ZERO); 95 if (!priv) 96 return ENOMEM; 97 98 agr_mc_init(sc, &priv->aep_multiaddrs); 99 100 sc->sc_iftprivate = priv; 101 /* 102 * inherit ports capabilities 103 * XXX this really needs to be the intersection of all 104 * ports capabilities, not just the latest port. 105 * Okay if ports are the same. 106 */ 107 ifp->if_capabilities = ifp_port->if_capabilities & 108 (IFCAP_TSOv4 | IFCAP_TSOv6 | 109 IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx | 110 IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx | 111 IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_UDPv4_Rx | 112 IFCAP_CSUM_TCPv6_Tx | IFCAP_CSUM_TCPv6_Rx | 113 IFCAP_CSUM_UDPv6_Tx | IFCAP_CSUM_UDPv6_Rx); 114 115 ether_ifattach(ifp, CLLADDR(ifp_port->if_sadl)); 116 ec->ec_capabilities = 117 ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING | ETHERCAP_JUMBO_MTU; 118 119 ieee8023ad_ctor(sc); 120 121 return 0; 122 } 123 124 static void 125 agrether_dtor(struct agr_softc *sc) 126 { 127 struct agrether_private *priv = sc->sc_iftprivate; 128 129 if (priv == NULL) { 130 return; 131 } 132 133 ieee8023ad_dtor(sc); 134 agr_mc_purgeall(sc, &priv->aep_multiaddrs); 135 free(priv, M_DEVBUF); 136 sc->sc_iftprivate = NULL; 137 } 138 139 static int 140 agrether_portinit(struct agr_softc *sc, struct agr_port *port) 141 { 142 struct ifreq ifr; 143 struct agrether_port_private *priv; 144 int error; 145 struct ethercom *ec = (void *)&sc->sc_if; 146 struct ethercom *ec_port = (void *)port->port_ifp; 147 148 port->port_media = IFM_ETHER | IFM_NONE; 149 150 /* 151 * XXX it's better to always advertise ETHERCAP_VLAN_HWTAGGING 152 * and do tag insertion by ourselves if necessary, 153 * so that we can mix devices with different capabilities. 154 * ditto about if_capabilities. 155 */ 156 157 if (ec->ec_capabilities & 158 ~ec_port->ec_capabilities & 159 (ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING)) { 160 if (ec->ec_nvlans > 0) { 161 return EINVAL; 162 } 163 ec->ec_capabilities &= 164 ec_port->ec_capabilities | 165 ~(ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING); 166 } 167 168 /* Enable vlan support */ 169 if (ec->ec_nvlans > 0) { 170 error = agr_vlan_add(port, NULL); 171 if (error != 0) 172 return error; 173 } 174 /* XXX ETHERCAP_JUMBO_MTU */ 175 176 priv = malloc(sizeof(*priv), M_DEVBUF, M_WAITOK | M_ZERO); 177 if (priv == NULL) { 178 return ENOMEM; 179 } 180 181 port->port_iftprivate = priv; 182 183 memset(&ifr, 0, sizeof(ifr)); 184 ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); 185 ifr.ifr_addr.sa_family = AF_UNSPEC; 186 KASSERT(sizeof(ifr.ifr_addr) >= 187 sizeof(ethermulticastaddr_slowprotocols)); 188 memcpy(&ifr.ifr_addr.sa_data, 189 ðermulticastaddr_slowprotocols, 190 sizeof(ethermulticastaddr_slowprotocols)); 191 error = agrport_ioctl(port, SIOCADDMULTI, (void *)&ifr); 192 if (error) { 193 free(port->port_iftprivate, M_DEVBUF); 194 port->port_iftprivate = NULL; 195 return error; 196 } 197 198 ieee8023ad_portinit(port); 199 200 return error; 201 } 202 203 static int 204 agrether_portfini(struct agr_softc *sc, struct agr_port *port) 205 { 206 struct ifreq ifr; 207 struct ethercom *ec_port = (void *)port->port_ifp; 208 int error; 209 210 if (port->port_iftprivate == NULL) { 211 return 0; 212 } 213 214 if (ec_port->ec_nvlans > 0) { 215 bool force = true; 216 /* Disable vlan support */ 217 agr_vlan_del(port, &force); 218 } 219 220 memset(&ifr, 0, sizeof(ifr)); 221 ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); 222 ifr.ifr_addr.sa_family = AF_UNSPEC; 223 KASSERT(sizeof(ifr.ifr_addr) >= 224 sizeof(ethermulticastaddr_slowprotocols)); 225 memcpy(&ifr.ifr_addr.sa_data, 226 ðermulticastaddr_slowprotocols, 227 sizeof(ethermulticastaddr_slowprotocols)); 228 error = agrport_ioctl(port, SIOCDELMULTI, (void *)&ifr); 229 if (error) { 230 return error; 231 } 232 233 ieee8023ad_portfini(port); 234 235 free(port->port_iftprivate, M_DEVBUF); 236 port->port_iftprivate = NULL; 237 238 return error; 239 } 240 241 static int 242 agrether_configmulti_port(struct agr_softc *sc, struct agr_port *port, 243 bool add) 244 { 245 struct agrether_private *priv = sc->sc_iftprivate; 246 247 return agr_configmulti_port(&priv->aep_multiaddrs, port, add); 248 } 249 250 static int 251 agrether_configmulti_ifreq(struct agr_softc *sc, struct ifreq *ifr, 252 bool add) 253 { 254 struct agrether_private *priv = sc->sc_iftprivate; 255 256 return agr_configmulti_ifreq(sc, &priv->aep_multiaddrs, ifr, add); 257 } 258 259 /* -------------------- */ 260 261 static struct agr_port * 262 agrether_select_tx_port(struct agr_softc *sc, struct mbuf *m) 263 { 264 265 return ieee8023ad_select_tx_port(sc, m); 266 } 267
Indexes created Mon Sep 29 21:09:56 GMT 2025