/****************************************************************************** * * 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 - 2013 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 LICENSE.GPL. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * BSD LICENSE * * Copyright(c) 2012 - 2013 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 #include "fw-api.h" #include "mvm.h" struct iwl_mvm_quota_iterator_data { int n_interfaces[MAX_BINDINGS]; int colors[MAX_BINDINGS]; struct ieee80211_vif *new_vif; }; static void iwl_mvm_quota_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mvm_quota_iterator_data *data = _data; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); u16 id; /* * We'll account for the new interface (if any) below, * skip it here in case we're not called from within * the add_interface callback (otherwise it won't show * up in iteration) */ if (vif == data->new_vif) return; if (!mvmvif->phy_ctxt) return; /* currently, PHY ID == binding ID */ id = mvmvif->phy_ctxt->id; /* need at least one binding per PHY */ BUILD_BUG_ON(NUM_PHY_CTX > MAX_BINDINGS); if (WARN_ON_ONCE(id >= MAX_BINDINGS)) return; if (data->colors[id] < 0) data->colors[id] = mvmvif->phy_ctxt->color; else WARN_ON_ONCE(data->colors[id] != mvmvif->phy_ctxt->color); switch (vif->type) { case NL80211_IFTYPE_STATION: if (vif->bss_conf.assoc) data->n_interfaces[id]++; break; case NL80211_IFTYPE_AP: if (mvmvif->ap_active) data->n_interfaces[id]++; break; case NL80211_IFTYPE_MONITOR: data->n_interfaces[id]++; break; case NL80211_IFTYPE_P2P_DEVICE: break; case NL80211_IFTYPE_ADHOC: if (vif->bss_conf.ibss_joined) data->n_interfaces[id]++; break; default: WARN_ON_ONCE(1); break; } } int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif) { struct iwl_time_quota_cmd cmd; int i, idx, ret, num_active_bindings, quota, quota_rem; struct iwl_mvm_quota_iterator_data data = { .n_interfaces = {}, .colors = { -1, -1, -1, -1 }, .new_vif = newvif, }; /* update all upon completion */ if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) return 0; BUILD_BUG_ON(data.colors[MAX_BINDINGS - 1] != -1); lockdep_assert_held(&mvm->mutex); memset(&cmd, 0, sizeof(cmd)); ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_quota_iterator, &data); if (newvif) { data.new_vif = NULL; iwl_mvm_quota_iterator(&data, newvif->addr, newvif); } /* * The FW's scheduling session consists of * IWL_MVM_MAX_QUOTA fragments. Divide these fragments * equally between all the bindings that require quota */ num_active_bindings = 0; for (i = 0; i < MAX_BINDINGS; i++) { cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); if (data.n_interfaces[i] > 0) num_active_bindings++; } if (!num_active_bindings) goto send_cmd; quota = IWL_MVM_MAX_QUOTA / num_active_bindings; quota_rem = IWL_MVM_MAX_QUOTA % num_active_bindings; for (idx = 0, i = 0; i < MAX_BINDINGS; i++) { if (data.n_interfaces[i] <= 0) continue; cmd.quotas[idx].id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i])); cmd.quotas[idx].quota = cpu_to_le32(quota); cmd.quotas[idx].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); idx++; } /* Give the remainder of the session to the first binding */ le32_add_cpu(&cmd.quotas[0].quota, quota_rem); send_cmd: ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, sizeof(cmd), &cmd); if (ret) IWL_ERR(mvm, "Failed to send quota: %d\n", ret); return ret; }