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/cdefs.h>
90 __FBSDID("$FreeBSD$");
91
92 #include "opt_wlan.h"
93 #include "opt_iwm.h"
94
95 #include <sys/param.h>
96 #include <sys/bus.h>
97 #include <sys/conf.h>
98 #include <sys/endian.h>
99 #include <sys/firmware.h>
100 #include <sys/kernel.h>
101 #include <sys/malloc.h>
102 #include <sys/mbuf.h>
103 #include <sys/mutex.h>
104 #include <sys/module.h>
105 #include <sys/proc.h>
106 #include <sys/rman.h>
107 #include <sys/socket.h>
108 #include <sys/sockio.h>
109 #include <sys/sysctl.h>
110 #include <sys/linker.h>
111
112 #include <machine/bus.h>
113 #include <machine/endian.h>
114 #include <machine/resource.h>
115
116 #include <dev/pci/pcivar.h>
117 #include <dev/pci/pcireg.h>
118
119 #include <net/bpf.h>
120
121 #include <net/if.h>
122 #include <net/if_var.h>
123 #include <net/if_arp.h>
124 #include <net/if_dl.h>
125 #include <net/if_media.h>
126 #include <net/if_types.h>
127
128 #include <netinet/in.h>
129 #include <netinet/in_systm.h>
130 #include <netinet/if_ether.h>
131 #include <netinet/ip.h>
132
133 #include <net80211/ieee80211_var.h>
134 #include <net80211/ieee80211_regdomain.h>
135 #include <net80211/ieee80211_ratectl.h>
136 #include <net80211/ieee80211_radiotap.h>
137
138 #include <dev/iwm/if_iwmreg.h>
139 #include <dev/iwm/if_iwmvar.h>
140 #include <dev/iwm/if_iwm_debug.h>
141 #include <dev/iwm/if_iwm_util.h>
142 #include <dev/iwm/if_iwm_binding.h>
143
144 /*
145 * BEGIN iwlwifi/mvm/binding.c
146 */
147
148 struct iwm_mvm_iface_iterator_data {
149 int idx;
150
151 struct iwm_mvm_phy_ctxt *phyctxt;
152
153 uint16_t ids[IWM_MAX_MACS_IN_BINDING];
154 int16_t colors[IWM_MAX_MACS_IN_BINDING];
155 };
156
157 static int
iwm_mvm_binding_cmd(struct iwm_softc * sc,uint32_t action,struct iwm_mvm_iface_iterator_data * data)158 iwm_mvm_binding_cmd(struct iwm_softc *sc, uint32_t action,
159 struct iwm_mvm_iface_iterator_data *data)
160 {
161 struct iwm_binding_cmd cmd;
162 struct iwm_mvm_phy_ctxt *phyctxt = data->phyctxt;
163 int i, ret;
164 uint32_t status;
165
166 memset(&cmd, 0, sizeof(cmd));
167
168 cmd.id_and_color
169 = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color));
170 cmd.action = htole32(action);
171 cmd.phy = htole32(IWM_FW_CMD_ID_AND_COLOR(phyctxt->id, phyctxt->color));
172
173 for (i = 0; i < IWM_MAX_MACS_IN_BINDING; i++)
174 cmd.macs[i] = htole32(IWM_FW_CTXT_INVALID);
175 for (i = 0; i < data->idx; i++)
176 cmd.macs[i] = htole32(IWM_FW_CMD_ID_AND_COLOR(data->ids[i],
177 data->colors[i]));
178
179 status = 0;
180 ret = iwm_mvm_send_cmd_pdu_status(sc, IWM_BINDING_CONTEXT_CMD,
181 sizeof(cmd), &cmd, &status);
182 if (ret) {
183 device_printf(sc->sc_dev,
184 "Failed to send binding (action:%d): %d\n", action, ret);
185 return ret;
186 }
187
188 if (status) {
189 device_printf(sc->sc_dev,
190 "Binding command failed: %u\n", status);
191 ret = EIO;
192 }
193
194 return ret;
195 }
196
197 static int
iwm_mvm_binding_update(struct iwm_softc * sc,struct iwm_vap * ivp,struct iwm_mvm_phy_ctxt * phyctxt,boolean_t add)198 iwm_mvm_binding_update(struct iwm_softc *sc, struct iwm_vap *ivp,
199 struct iwm_mvm_phy_ctxt *phyctxt, boolean_t add)
200 {
201 struct iwm_mvm_iface_iterator_data data = {
202 .phyctxt = phyctxt,
203 };
204 uint32_t action;
205
206 if (add)
207 action = IWM_FW_CTXT_ACTION_ADD;
208 else
209 action = IWM_FW_CTXT_ACTION_REMOVE;
210
211 if (add) {
212 data.ids[0] = ivp->id;
213 data.colors[0] = ivp->color;
214 data.idx++;
215 }
216
217 return iwm_mvm_binding_cmd(sc, action, &data);
218 }
219
220 int
iwm_mvm_binding_add_vif(struct iwm_softc * sc,struct iwm_vap * ivp)221 iwm_mvm_binding_add_vif(struct iwm_softc *sc, struct iwm_vap *ivp)
222 {
223 if (!ivp->phy_ctxt)
224 return EINVAL;
225
226 #ifdef notyet
227 /*
228 * Update SF - Disable if needed. if this fails, SF might still be on
229 * while many macs are bound, which is forbidden - so fail the binding.
230 */
231 if (iwm_mvm_sf_update(sc, ivp, FALSE))
232 return EINVAL;
233 #endif
234
235 return iwm_mvm_binding_update(sc, ivp, ivp->phy_ctxt, TRUE);
236 }
237
238 int
iwm_mvm_binding_remove_vif(struct iwm_softc * sc,struct iwm_vap * ivp)239 iwm_mvm_binding_remove_vif(struct iwm_softc *sc, struct iwm_vap *ivp)
240 {
241 int ret;
242
243 if (!ivp->phy_ctxt)
244 return EINVAL;
245
246 ret = iwm_mvm_binding_update(sc, ivp, ivp->phy_ctxt, FALSE);
247
248 #ifdef notyet
249 if (!ret) {
250 if (iwm_mvm_sf_update(sc, ivp, TRUE))
251 device_printf(sc->sc_dev,
252 "Failed to update SF state\n");
253 }
254 #endif
255
256 return ret;
257 }
258