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 146 iwm_binding_cmd(struct iwm_softc *sc, uint32_t action, 147 struct iwm_iface_iterator_data *data) 148 { 149 struct iwm_binding_cmd 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 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 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 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