+++ /dev/null
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <net/mac80211.h>
-#include "fw-api.h"
-#include "mvm.h"
-
-struct iwl_mvm_iface_iterator_data {
- struct ieee80211_vif *ignore_vif;
- int idx;
-
- struct iwl_mvm_phy_ctxt *phyctxt;
-
- u16 ids[MAX_MACS_IN_BINDING];
- u16 colors[MAX_MACS_IN_BINDING];
-};
-
-static int iwl_mvm_binding_cmd(struct iwl_mvm *mvm, u32 action,
- struct iwl_mvm_iface_iterator_data *data)
-{
- struct iwl_binding_cmd cmd;
- struct iwl_mvm_phy_ctxt *phyctxt = data->phyctxt;
- int i, ret;
- u32 status;
-
- memset(&cmd, 0, sizeof(cmd));
-
- cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(phyctxt->id,
- phyctxt->color));
- cmd.action = cpu_to_le32(action);
- cmd.phy = cpu_to_le32(FW_CMD_ID_AND_COLOR(phyctxt->id,
- phyctxt->color));
-
- for (i = 0; i < MAX_MACS_IN_BINDING; i++)
- cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
- for (i = 0; i < data->idx; i++)
- cmd.macs[i] = cpu_to_le32(FW_CMD_ID_AND_COLOR(data->ids[i],
- data->colors[i]));
-
- status = 0;
- ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
- sizeof(cmd), &cmd, &status);
- if (ret) {
- IWL_ERR(mvm, "Failed to send binding (action:%d): %d\n",
- action, ret);
- return ret;
- }
-
- if (status) {
- IWL_ERR(mvm, "Binding command failed: %u\n", status);
- ret = -EIO;
- }
-
- return ret;
-}
-
-static void iwl_mvm_iface_iterator(void *_data, u8 *mac,
- struct ieee80211_vif *vif)
-{
- struct iwl_mvm_iface_iterator_data *data = _data;
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-
- if (vif == data->ignore_vif)
- return;
-
- if (mvmvif->phy_ctxt != data->phyctxt)
- return;
-
- if (WARN_ON_ONCE(data->idx >= MAX_MACS_IN_BINDING))
- return;
-
- data->ids[data->idx] = mvmvif->id;
- data->colors[data->idx] = mvmvif->color;
- data->idx++;
-}
-
-static int iwl_mvm_binding_update(struct iwl_mvm *mvm,
- struct ieee80211_vif *vif,
- struct iwl_mvm_phy_ctxt *phyctxt,
- bool add)
-{
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
- struct iwl_mvm_iface_iterator_data data = {
- .ignore_vif = vif,
- .phyctxt = phyctxt,
- };
- u32 action = FW_CTXT_ACTION_MODIFY;
-
- lockdep_assert_held(&mvm->mutex);
-
- ieee80211_iterate_active_interfaces_atomic(mvm->hw,
- IEEE80211_IFACE_ITER_NORMAL,
- iwl_mvm_iface_iterator,
- &data);
-
- /*
- * If there are no other interfaces yet we
- * need to create a new binding.
- */
- if (data.idx == 0) {
- if (add)
- action = FW_CTXT_ACTION_ADD;
- else
- action = FW_CTXT_ACTION_REMOVE;
- }
-
- if (add) {
- if (WARN_ON_ONCE(data.idx >= MAX_MACS_IN_BINDING))
- return -EINVAL;
-
- data.ids[data.idx] = mvmvif->id;
- data.colors[data.idx] = mvmvif->color;
- data.idx++;
- }
-
- return iwl_mvm_binding_cmd(mvm, action, &data);
-}
-
-int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
-{
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-
- if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
- return -EINVAL;
-
- /*
- * Update SF - Disable if needed. if this fails, SF might still be on
- * while many macs are bound, which is forbidden - so fail the binding.
- */
- if (iwl_mvm_sf_update(mvm, vif, false))
- return -EINVAL;
-
- return iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, true);
-}
-
-int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
-{
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
- int ret;
-
- if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
- return -EINVAL;
-
- ret = iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, false);
-
- if (!ret)
- if (iwl_mvm_sf_update(mvm, vif, true))
- IWL_ERR(mvm, "Failed to update SF state\n");
-
- return ret;
-}
projects / cascardo / linux.git / blobdiff