1 /* $NetBSD: if_agrether.c,v 1.12 2021/11/30 01:17:02 yamaguchi 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 1.12 2021/11/30 01:17:02 yamaguchi 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 #include <net/ether_slowprotocols.h> 42 43 #include <net/agr/if_agrvar_impl.h> 44 #include <net/agr/if_agrethervar.h> 45 #include <net/agr/if_agrsubr.h> 46 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_WAITOK | M_ZERO); 95 agr_mc_init(sc, &priv->aep_multiaddrs); 96 97 sc->sc_iftprivate = priv; 98 /* 99 * inherit ports capabilities 100 * XXX this really needs to be the intersection of all 101 * ports capabilities, not just the latest port. 102 * Okay if ports are the same. 103 */ 104 ifp->if_capabilities = ifp_port->if_capabilities & 105 (IFCAP_TSOv4 | IFCAP_TSOv6 | 106 IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx | 107 IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx | 108 IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_UDPv4_Rx | 109 IFCAP_CSUM_TCPv6_Tx | IFCAP_CSUM_TCPv6_Rx | 110 IFCAP_CSUM_UDPv6_Tx | IFCAP_CSUM_UDPv6_Rx); 111 112 ether_ifattach(ifp, CLLADDR(ifp_port->if_sadl)); 113 ec->ec_capabilities = 114 ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING | ETHERCAP_JUMBO_MTU; 115 116 ieee8023ad_ctor(sc); 117 118 return 0; 119 } 120 121 static void 122 agrether_dtor(struct agr_softc *sc) 123 { 124 struct agrether_private *priv = sc->sc_iftprivate; 125 126 if (priv == NULL) { 127 return; 128 } 129 130 ieee8023ad_dtor(sc); 131 agr_mc_purgeall(sc, &priv->aep_multiaddrs); 132 free(priv, M_DEVBUF); 133 sc->sc_iftprivate = NULL; 134 } 135 136 static int 137 agrether_portinit(struct agr_softc *sc, struct agr_port *port) 138 { 139 struct ifreq ifr; 140 struct agrether_port_private *priv; 141 int error; 142 struct ethercom *ec = (void *)&sc->sc_if; 143 struct ethercom *ec_port = (void *)port->port_ifp; 144 145 port->port_media = IFM_ETHER | IFM_NONE; 146 147 /* 148 * XXX it's better to always advertise ETHERCAP_VLAN_HWTAGGING 149 * and do tag insertion by ourselves if necessary, 150 * so that we can mix devices with different capabilities. 151 * ditto about if_capabilities. 152 */ 153 154 if (ec->ec_capabilities & 155 ~ec_port->ec_capabilities & 156 (ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING)) { 157 if (ec->ec_nvlans > 0) { 158 return EINVAL; 159 } 160 ec->ec_capabilities &= 161 ec_port->ec_capabilities | 162 ~(ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING); 163 } 164 165 /* Enable vlan support */ 166 if (ec->ec_nvlans > 0) { 167 error = agr_vlan_add(port, NULL); 168 if (error != 0) 169 return error; 170 } 171 /* XXX ETHERCAP_JUMBO_MTU */ 172 173 priv = malloc(sizeof(*priv), M_DEVBUF, M_WAITOK | M_ZERO); 174 if (priv == NULL) { 175 return ENOMEM; 176 } 177 178 port->port_iftprivate = priv; 179 180 memset(&ifr, 0, sizeof(ifr)); 181 ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); 182 ifr.ifr_addr.sa_family = AF_UNSPEC; 183 KASSERT(sizeof(ifr.ifr_addr) >= 184 sizeof(ethermulticastaddr_slowprotocols)); 185 memcpy(&ifr.ifr_addr.sa_data, 186 ðermulticastaddr_slowprotocols, 187 sizeof(ethermulticastaddr_slowprotocols)); 188 error = agrport_ioctl(port, SIOCADDMULTI, (void *)&ifr); 189 if (error) { 190 free(port->port_iftprivate, M_DEVBUF); 191 port->port_iftprivate = NULL; 192 return error; 193 } 194 195 ieee8023ad_portinit(port); 196 197 return error; 198 } 199 200 static int 201 agrether_portfini(struct agr_softc *sc, struct agr_port *port) 202 { 203 struct ifreq ifr; 204 struct ethercom *ec_port = (void *)port->port_ifp; 205 int error; 206 207 if (port->port_iftprivate == NULL) { 208 return 0; 209 } 210 211 if (ec_port->ec_nvlans > 0) { 212 bool force = true; 213 /* Disable vlan support */ 214 agr_vlan_del(port, &force); 215 } 216 217 memset(&ifr, 0, sizeof(ifr)); 218 ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); 219 ifr.ifr_addr.sa_family = AF_UNSPEC; 220 KASSERT(sizeof(ifr.ifr_addr) >= 221 sizeof(ethermulticastaddr_slowprotocols)); 222 memcpy(&ifr.ifr_addr.sa_data, 223 ðermulticastaddr_slowprotocols, 224 sizeof(ethermulticastaddr_slowprotocols)); 225 error = agrport_ioctl(port, SIOCDELMULTI, (void *)&ifr); 226 if (error) { 227 return error; 228 } 229 230 ieee8023ad_portfini(port); 231 232 free(port->port_iftprivate, M_DEVBUF); 233 port->port_iftprivate = NULL; 234 235 return error; 236 } 237 238 static int 239 agrether_configmulti_port(struct agr_softc *sc, struct agr_port *port, 240 bool add) 241 { 242 struct agrether_private *priv = sc->sc_iftprivate; 243 244 return agr_configmulti_port(&priv->aep_multiaddrs, port, add); 245 } 246 247 static int 248 agrether_configmulti_ifreq(struct agr_softc *sc, struct ifreq *ifr, 249 bool add) 250 { 251 struct agrether_private *priv = sc->sc_iftprivate; 252 253 return agr_configmulti_ifreq(sc, &priv->aep_multiaddrs, ifr, add); 254 } 255 256 /* -------------------- */ 257 258 static struct agr_port * 259 agrether_select_tx_port(struct agr_softc *sc, struct mbuf *m) 260 { 261 262 return ieee8023ad_select_tx_port(sc, m); 263 } 264
Indexes created Mon Sep 29 21:09:56 GMT 2025