diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 108 |
1 files changed, 95 insertions, 13 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index 7aae068..69c42ce 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -1006,7 +1006,7 @@ static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, } static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, - struct iwl_mac_beacon_cmd *beacon_cmd, + struct iwl_mac_beacon_cmd_v6 *beacon_cmd, u8 *beacon, u32 frame_size) { u32 tim_idx; @@ -1030,6 +1030,23 @@ static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, } } +static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) +{ + struct ieee80211_mgmt *mgmt = (void *)beacon; + const u8 *ie; + + if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) + return 0; + + frame_size -= mgmt->u.beacon.variable - beacon; + + ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); + if (!ie) + return 0; + + return ie - beacon; +} + static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct sk_buff *beacon) @@ -1039,7 +1056,10 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, .id = BEACON_TEMPLATE_CMD, .flags = CMD_ASYNC, }; - struct iwl_mac_beacon_cmd beacon_cmd = {}; + union { + struct iwl_mac_beacon_cmd_v6 beacon_cmd_v6; + struct iwl_mac_beacon_cmd beacon_cmd; + } u = {}; struct ieee80211_tx_info *info; u32 beacon_skb_len; u32 rate, tx_flags; @@ -1051,18 +1071,18 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, /* TODO: for now the beacon template id is set to be the mac context id. * Might be better to handle it as another resource ... */ - beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); + u.beacon_cmd_v6.template_id = cpu_to_le32((u32)mvmvif->id); info = IEEE80211_SKB_CB(beacon); /* Set up TX command fields */ - beacon_cmd.tx.len = cpu_to_le16((u16)beacon_skb_len); - beacon_cmd.tx.sta_id = mvmvif->bcast_sta.sta_id; - beacon_cmd.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); + u.beacon_cmd_v6.tx.len = cpu_to_le16((u16)beacon_skb_len); + u.beacon_cmd_v6.tx.sta_id = mvmvif->bcast_sta.sta_id; + u.beacon_cmd_v6.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << TX_CMD_FLG_BT_PRIO_POS; - beacon_cmd.tx.tx_flags = cpu_to_le32(tx_flags); + u.beacon_cmd_v6.tx.tx_flags = cpu_to_le32(tx_flags); if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { @@ -1071,7 +1091,7 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, mvm->mgmt_last_antenna_idx); } - beacon_cmd.tx.rate_n_flags = + u.beacon_cmd_v6.tx.rate_n_flags = cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS); @@ -1079,20 +1099,37 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, rate = IWL_FIRST_OFDM_RATE; } else { rate = IWL_FIRST_CCK_RATE; - beacon_cmd.tx.rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); + u.beacon_cmd_v6.tx.rate_n_flags |= + cpu_to_le32(RATE_MCS_CCK_MSK); } - beacon_cmd.tx.rate_n_flags |= + u.beacon_cmd_v6.tx.rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); /* Set up TX beacon command fields */ if (vif->type == NL80211_IFTYPE_AP) - iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd, + iwl_mvm_mac_ctxt_set_tim(mvm, &u.beacon_cmd_v6, beacon->data, beacon_skb_len); /* Submit command */ - cmd.len[0] = sizeof(beacon_cmd); - cmd.data[0] = &beacon_cmd; + + if (fw_has_capa(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) { + u.beacon_cmd.csa_offset = + cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, + WLAN_EID_CHANNEL_SWITCH, + beacon_skb_len)); + u.beacon_cmd.ecsa_offset = + cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, + WLAN_EID_EXT_CHANSWITCH_ANN, + beacon_skb_len)); + + cmd.len[0] = sizeof(u.beacon_cmd); + } else { + cmd.len[0] = sizeof(u.beacon_cmd_v6); + } + + cmd.data[0] = &u; cmd.dataflags[0] = 0; cmd.len[1] = beacon_skb_len; cmd.data[1] = beacon->data; @@ -1538,3 +1575,48 @@ void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, /* pass it as regular rx to mac80211 */ ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); } + +void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; + struct ieee80211_vif *csa_vif; + struct iwl_mvm_vif *mvmvif; + int len = iwl_rx_packet_payload_len(pkt); + u32 id_n_color; + + if (WARN_ON_ONCE(len < sizeof(*notif))) + return; + + rcu_read_lock(); + + csa_vif = rcu_dereference(mvm->csa_vif); + if (WARN_ON(!csa_vif || !csa_vif->csa_active)) + goto out_unlock; + + id_n_color = le32_to_cpu(notif->id_and_color); + + mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); + if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, + "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", + FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) + goto out_unlock; + + IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); + + queue_delayed_work(system_wq, &mvm->cs_tx_unblock_dwork, + msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * + csa_vif->bss_conf.beacon_int)); + + ieee80211_csa_finish(csa_vif); + + rcu_read_unlock(); + + RCU_INIT_POINTER(mvm->csa_vif, NULL); + + return; + +out_unlock: + rcu_read_unlock(); +} |