1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 /*-
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
23 *
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
26 *
27 ***********************************************************************
28 *
29 * This file is provided under a dual BSD/GPLv2 license. When using or
30 * redistributing this file, you may do so under either license.
31 *
32 * GPL LICENSE SUMMARY
33 *
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 *
36 * This program is free software; you can redistribute it and/or modify
37 * it under the terms of version 2 of the GNU General Public License as
38 * published by the Free Software Foundation.
39 *
40 * This program is distributed in the hope that it will be useful, but
41 * WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
43 * General Public License for more details.
44 *
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
48 * USA
49 *
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
52 *
53 * Contact Information:
54 * Intel Linux Wireless <linuxwifi@intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
56 *
57 * BSD LICENSE
58 *
59 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
60 * All rights reserved.
61 *
62 * Redistribution and use in source and binary forms, with or without
63 * modification, are permitted provided that the following conditions
64 * are met:
65 *
66 * * Redistributions of source code must retain the above copyright
67 * notice, this list of conditions and the following disclaimer.
68 * * Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 * * Neither the name Intel Corporation nor the names of its
73 * contributors may be used to endorse or promote products derived
74 * from this software without specific prior written permission.
75 *
76 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
77 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
78 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
79 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
80 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
81 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
82 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
83 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
84 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
85 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
86 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
87 */
88
89 #include <sys/param.h>
90 #include <sys/bus.h>
91 #include <sys/conf.h>
92 #include <sys/endian.h>
93 #include <sys/firmware.h>
94 #include <sys/kernel.h>
95 #include <sys/malloc.h>
96 #include <sys/mbuf.h>
97 #include <sys/rman.h>
98 #include <sys/sysctl.h>
99 #include <sys/linker.h>
100
101 #include <machine/endian.h>
102
103 #include <bus/pci/pcivar.h>
104 #include <bus/pci/pcireg.h>
105
106 #include <net/bpf.h>
107
108 #include <net/if.h>
109 #include <net/if_var.h>
110 #include <net/if_arp.h>
111 #include <net/if_dl.h>
112 #include <net/if_media.h>
113 #include <net/if_types.h>
114
115 #include <netinet/in.h>
116 #include <netinet/in_systm.h>
117 #include <netinet/if_ether.h>
118 #include <netinet/ip.h>
119
120 #include <netproto/802_11/ieee80211_var.h>
121 #include <netproto/802_11/ieee80211_regdomain.h>
122 #include <netproto/802_11/ieee80211_ratectl.h>
123 #include <netproto/802_11/ieee80211_radiotap.h>
124
125 #include "if_iwmreg.h"
126 #include "if_iwmvar.h"
127 #include "if_iwm_debug.h"
128 #include "if_iwm_util.h"
129 #include "if_iwm_binding.h"
130 #include "if_iwm_sf.h"
131
132 /*
133 * BEGIN iwlwifi/mvm/binding.c
134 */
135
136 struct iwm_iface_iterator_data {
137 int idx;
138
139 struct iwm_phy_ctxt *phyctxt;
140
141 uint16_t ids[IWM_MAX_MACS_IN_BINDING];
142 int16_t colors[IWM_MAX_MACS_IN_BINDING];
143 };
144
145 static int
iwm_binding_cmd(struct iwm_softc * sc,uint32_t action,struct iwm_iface_iterator_data * data)146 iwm_binding_cmd(struct iwm_softc *sc, uint32_t action,
147 struct iwm_iface_iterator_data *data)
148 {
149 struct iwm_binding_cmd_v1 cmd;
150 struct iwm_phy_ctxt *phyctxt = data->phyctxt;
151 int i, ret;
152 uint32_t status;
153
154 memset(&cmd, 0, sizeof(cmd));
155
156 cmd.id_and_color
157 = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color));
158 cmd.action = htole32(action);
159 cmd.phy = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color));
160
161 for (i = 0; i < IWM_MAX_MACS_IN_BINDING; i++)
162 cmd.macs[i] = htole32(IWM_FW_CTXT_INVALID);
163 for (i = 0; i < data->idx; i++)
164 cmd.macs[i] = htole32(IWM_FW_CMD_ID_AND_COLOR(data->ids[i],
165 data->colors[i]));
166
167 status = 0;
168 ret = iwm_send_cmd_pdu_status(sc, IWM_BINDING_CONTEXT_CMD,
169 sizeof(cmd), &cmd, &status);
170 if (ret) {
171 device_printf(sc->sc_dev,
172 "Failed to send binding (action:%d): %d\n", action, ret);
173 return ret;
174 }
175
176 if (status) {
177 device_printf(sc->sc_dev,
178 "Binding command failed: %u\n", status);
179 ret = EIO;
180 }
181
182 return ret;
183 }
184
185 static int
iwm_binding_update(struct iwm_softc * sc,struct iwm_vap * ivp,struct iwm_phy_ctxt * phyctxt,boolean_t add)186 iwm_binding_update(struct iwm_softc *sc, struct iwm_vap *ivp,
187 struct iwm_phy_ctxt *phyctxt, boolean_t add)
188 {
189 struct iwm_iface_iterator_data data = {
190 .phyctxt = phyctxt,
191 };
192 uint32_t action;
193
194 if (add)
195 action = IWM_FW_CTXT_ACTION_ADD;
196 else
197 action = IWM_FW_CTXT_ACTION_REMOVE;
198
199 if (add) {
200 data.ids[0] = ivp->id;
201 data.colors[0] = ivp->color;
202 data.idx++;
203 }
204
205 return iwm_binding_cmd(sc, action, &data);
206 }
207
208 int
iwm_binding_add_vif(struct iwm_softc * sc,struct iwm_vap * ivp)209 iwm_binding_add_vif(struct iwm_softc *sc, struct iwm_vap *ivp)
210 {
211 if (!ivp->phy_ctxt)
212 return EINVAL;
213
214 /*
215 * Update SF - Disable if needed. if this fails, SF might still be on
216 * while many macs are bound, which is forbidden - so fail the binding.
217 */
218 if (iwm_sf_update(sc, &ivp->iv_vap, FALSE))
219 return EINVAL;
220
221 return iwm_binding_update(sc, ivp, ivp->phy_ctxt, TRUE);
222 }
223
224 int
iwm_binding_remove_vif(struct iwm_softc * sc,struct iwm_vap * ivp)225 iwm_binding_remove_vif(struct iwm_softc *sc, struct iwm_vap *ivp)
226 {
227 int ret;
228
229 if (!ivp->phy_ctxt)
230 return EINVAL;
231
232 ret = iwm_binding_update(sc, ivp, ivp->phy_ctxt, FALSE);
233
234 if (!ret) {
235 if (iwm_sf_update(sc, &ivp->iv_vap, TRUE))
236 device_printf(sc->sc_dev,
237 "Failed to update SF state\n");
238 }
239
240 return ret;
241 }
242