1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
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37 * modification, are permitted provided that the following conditions
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43 * notice, this list of conditions and the following disclaimer in
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48 * from this software without specific prior written permission.
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51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
64 #include <net/mac80211.h>
68 struct iwl_mvm_iface_iterator_data {
69 struct ieee80211_vif *ignore_vif;
72 struct iwl_mvm_phy_ctxt *phyctxt;
74 u16 ids[MAX_MACS_IN_BINDING];
75 u16 colors[MAX_MACS_IN_BINDING];
78 static int iwl_mvm_binding_cmd(struct iwl_mvm *mvm, u32 action,
79 struct iwl_mvm_iface_iterator_data *data)
81 struct iwl_binding_cmd cmd;
82 struct iwl_mvm_phy_ctxt *phyctxt = data->phyctxt;
86 memset(&cmd, 0, sizeof(cmd));
88 cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(phyctxt->id,
90 cmd.action = cpu_to_le32(action);
91 cmd.phy = cpu_to_le32(FW_CMD_ID_AND_COLOR(phyctxt->id,
94 for (i = 0; i < MAX_MACS_IN_BINDING; i++)
95 cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
96 for (i = 0; i < data->idx; i++)
97 cmd.macs[i] = cpu_to_le32(FW_CMD_ID_AND_COLOR(data->ids[i],
101 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
102 sizeof(cmd), &cmd, &status);
104 IWL_ERR(mvm, "Failed to send binding (action:%d): %d\n",
110 IWL_ERR(mvm, "Binding command failed: %u\n", status);
117 static void iwl_mvm_iface_iterator(void *_data, u8 *mac,
118 struct ieee80211_vif *vif)
120 struct iwl_mvm_iface_iterator_data *data = _data;
121 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
123 if (vif == data->ignore_vif)
126 if (mvmvif->phy_ctxt != data->phyctxt)
129 if (WARN_ON_ONCE(data->idx >= MAX_MACS_IN_BINDING))
132 data->ids[data->idx] = mvmvif->id;
133 data->colors[data->idx] = mvmvif->color;
137 static int iwl_mvm_binding_update(struct iwl_mvm *mvm,
138 struct ieee80211_vif *vif,
139 struct iwl_mvm_phy_ctxt *phyctxt,
142 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
143 struct iwl_mvm_iface_iterator_data data = {
147 u32 action = FW_CTXT_ACTION_MODIFY;
149 lockdep_assert_held(&mvm->mutex);
151 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
152 IEEE80211_IFACE_ITER_NORMAL,
153 iwl_mvm_iface_iterator,
157 * If there are no other interfaces yet we
158 * need to create a new binding.
162 action = FW_CTXT_ACTION_ADD;
164 action = FW_CTXT_ACTION_REMOVE;
168 if (WARN_ON_ONCE(data.idx >= MAX_MACS_IN_BINDING))
171 data.ids[data.idx] = mvmvif->id;
172 data.colors[data.idx] = mvmvif->color;
176 return iwl_mvm_binding_cmd(mvm, action, &data);
179 int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
181 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
183 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
187 * Update SF - Disable if needed. if this fails, SF might still be on
188 * while many macs are bound, which is forbidden - so fail the binding.
190 if (iwl_mvm_sf_update(mvm, vif, false))
193 return iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, true);
196 int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
198 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
201 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
204 ret = iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, false);
207 if (iwl_mvm_sf_update(mvm, vif, true))
208 IWL_ERR(mvm, "Failed to update SF state\n");