Orange Pi5 kernel

/******************************************************************************
 *
 * 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, 2020 Intel Corporation. All rights reserved.
 * Copyright(c) 2016 Intel Deutschland GmbH
 *
 * 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.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2014, 2020 Intel Corporation. All rights reserved.
 * Copyright(c) 2016 Intel Deutschland GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in
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 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * 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;
<------>int size;
 
<------>memset(&cmd, 0, sizeof(cmd));
 
<------>if (fw_has_capa(&mvm->fw->ucode_capa,
<------><------><------>IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT)) {
<------><------>size = sizeof(cmd);
<------><------>cmd.lmac_id = cpu_to_le32(iwl_mvm_get_lmac_id(mvm->fw,
<------><------><------><------><------><------><------>      phyctxt->channel->band));
<------>} else {
<------><------>size = IWL_BINDING_CMD_SIZE_V1;
<------>}
 
<------>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,
<------><------><------><------><------>  size, &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;
}