1 | /* $NetBSD: if_agrether.c,v 1.9 2011/10/19 01:49:50 dyoung 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 1.9 2011/10/19 01:49:50 dyoung 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 | ec_port->ec_nvlans++ == 0 && |
171 | (ec_port->ec_capabilities & ETHERCAP_VLAN_MTU) != 0) { |
172 | struct ifnet *p = port->port_ifp; |
173 | /* |
174 | * Enable Tx/Rx of VLAN-sized frames. |
175 | */ |
176 | ec_port->ec_capenable |= ETHERCAP_VLAN_MTU; |
177 | if (p->if_flags & IFF_UP) { |
178 | error = if_flags_set(p, p->if_flags); |
179 | if (error) { |
180 | if (ec_port->ec_nvlans-- == 1) |
181 | ec_port->ec_capenable &= |
182 | ~ETHERCAP_VLAN_MTU; |
183 | return (error); |
184 | } |
185 | } |
186 | } |
187 | /* XXX ETHERCAP_JUMBO_MTU */ |
188 | |
189 | priv = malloc(sizeof(*priv), M_DEVBUF, M_WAITOK | M_ZERO); |
190 | if (priv == NULL) { |
191 | return ENOMEM; |
192 | } |
193 | |
194 | port->port_iftprivate = priv; |
195 | |
196 | memset(&ifr, 0, sizeof(ifr)); |
197 | ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); |
198 | ifr.ifr_addr.sa_family = AF_UNSPEC; |
199 | KASSERT(sizeof(ifr.ifr_addr) >= |
200 | sizeof(ethermulticastaddr_slowprotocols)); |
201 | memcpy(&ifr.ifr_addr.sa_data, |
202 | ðermulticastaddr_slowprotocols, |
203 | sizeof(ethermulticastaddr_slowprotocols)); |
204 | error = agrport_ioctl(port, SIOCADDMULTI, (void *)&ifr); |
205 | if (error) { |
206 | free(port->port_iftprivate, M_DEVBUF); |
207 | port->port_iftprivate = NULL; |
208 | return error; |
209 | } |
210 | |
211 | ieee8023ad_portinit(port); |
212 | |
213 | return error; |
214 | } |
215 | |
216 | static int |
217 | agrether_portfini(struct agr_softc *sc, struct agr_port *port) |
218 | { |
219 | struct ifreq ifr; |
220 | struct ethercom *ec_port = (void *)port->port_ifp; |
221 | int error; |
222 | |
223 | if (port->port_iftprivate == NULL) { |
224 | return 0; |
225 | } |
226 | |
227 | if (ec_port->ec_nvlans > 0) { |
228 | /* Disable vlan support */ |
229 | ec_port->ec_nvlans = 0; |
230 | /* |
231 | * Disable Tx/Rx of VLAN-sized frames. |
232 | */ |
233 | ec_port->ec_capenable &= ~ETHERCAP_VLAN_MTU; |
234 | if (port->port_ifp->if_flags & IFF_UP) { |
235 | (void)if_flags_set(port->port_ifp, |
236 | port->port_ifp->if_flags); |
237 | } |
238 | } |
239 | |
240 | memset(&ifr, 0, sizeof(ifr)); |
241 | ifr.ifr_addr.sa_len = sizeof(ifr.ifr_addr); |
242 | ifr.ifr_addr.sa_family = AF_UNSPEC; |
243 | KASSERT(sizeof(ifr.ifr_addr) >= |
244 | sizeof(ethermulticastaddr_slowprotocols)); |
245 | memcpy(&ifr.ifr_addr.sa_data, |
246 | ðermulticastaddr_slowprotocols, |
247 | sizeof(ethermulticastaddr_slowprotocols)); |
248 | error = agrport_ioctl(port, SIOCDELMULTI, (void *)&ifr); |
249 | if (error) { |
250 | return error; |
251 | } |
252 | |
253 | ieee8023ad_portfini(port); |
254 | |
255 | free(port->port_iftprivate, M_DEVBUF); |
256 | port->port_iftprivate = NULL; |
257 | |
258 | return error; |
259 | } |
260 | |
261 | static int |
262 | agrether_configmulti_port(struct agr_softc *sc, struct agr_port *port, |
263 | bool add) |
264 | { |
265 | struct agrether_private *priv = sc->sc_iftprivate; |
266 | |
267 | return agr_configmulti_port(&priv->aep_multiaddrs, port, add); |
268 | } |
269 | |
270 | static int |
271 | agrether_configmulti_ifreq(struct agr_softc *sc, struct ifreq *ifr, |
272 | bool add) |
273 | { |
274 | struct agrether_private *priv = sc->sc_iftprivate; |
275 | |
276 | return agr_configmulti_ifreq(sc, &priv->aep_multiaddrs, ifr, add); |
277 | } |
278 | |
279 | /* -------------------- */ |
280 | |
281 | static struct agr_port * |
282 | agrether_select_tx_port(struct agr_softc *sc, struct mbuf *m) |
283 | { |
284 | |
285 | return ieee8023ad_select_tx_port(sc, m); |
286 | } |
287 | |