*
*****************************************************************************/
#include <linux/module.h>
+#include <linux/vmalloc.h>
#include <net/mac80211.h>
#include "iwl-notif-wait.h"
#include "iwl-prph.h"
#include "rs.h"
#include "fw-api-scan.h"
+#include "fw-error-dump.h"
#include "time-event.h"
/*
RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false),
RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
+ RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
+ iwl_mvm_rx_ant_coupling_notif, true),
RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
- RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
+ RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
iwl_mvm_rx_scan_offload_complete_notif, true),
RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_sched_scan_results,
CMD(MAC_PM_POWER_TABLE),
CMD(BT_COEX_CI),
CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
+ CMD(ANTENNA_COUPLING_NOTIFICATION),
};
#undef CMD
INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
+ spin_lock_init(&mvm->d0i3_tx_lock);
+ skb_queue_head_init(&mvm->d0i3_tx);
+ init_waitqueue_head(&mvm->d0i3_exit_waitq);
+
SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
/*
ieee80211_unregister_hw(mvm->hw);
kfree(mvm->scan_cmd);
+ vfree(mvm->fw_error_dump);
+ kfree(mvm->fw_error_sram);
+ kfree(mvm->fw_error_rxf);
kfree(mvm->mcast_filter_cmd);
mvm->mcast_filter_cmd = NULL;
wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
}
-static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
+static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
else
clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
- if (state && mvm->cur_ucode != IWL_UCODE_INIT)
- iwl_trans_stop_device(mvm->trans);
wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
+
+ return state && mvm->cur_ucode != IWL_UCODE_INIT;
}
static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
}
}
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
+{
+ struct iwl_fw_error_dump_file *dump_file;
+ struct iwl_fw_error_dump_data *dump_data;
+ u32 file_len;
+
+ lockdep_assert_held(&mvm->mutex);
+
+ if (mvm->fw_error_dump)
+ return;
+
+ file_len = mvm->fw_error_sram_len +
+ mvm->fw_error_rxf_len +
+ sizeof(*dump_file) +
+ sizeof(*dump_data) * 2;
+
+ dump_file = vmalloc(file_len);
+ if (!dump_file)
+ return;
+
+ mvm->fw_error_dump = dump_file;
+
+ dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
+ dump_file->file_len = cpu_to_le32(file_len);
+ dump_data = (void *)dump_file->data;
+ dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
+ dump_data->len = cpu_to_le32(mvm->fw_error_rxf_len);
+ memcpy(dump_data->data, mvm->fw_error_rxf, mvm->fw_error_rxf_len);
+
+ dump_data = (void *)((u8 *)dump_data->data + mvm->fw_error_rxf_len);
+ dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
+ dump_data->len = cpu_to_le32(mvm->fw_error_sram_len);
+
+ /*
+ * No need for lock since at the stage the FW isn't loaded. So it
+ * can't assert - we are the only one who can possibly be accessing
+ * mvm->fw_error_sram right now.
+ */
+ memcpy(dump_data->data, mvm->fw_error_sram, mvm->fw_error_sram_len);
+
+ kfree(mvm->fw_error_rxf);
+ mvm->fw_error_rxf = NULL;
+ mvm->fw_error_rxf_len = 0;
+
+ kfree(mvm->fw_error_sram);
+ mvm->fw_error_sram = NULL;
+ mvm->fw_error_sram_len = 0;
+}
+#endif
+
static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
iwl_mvm_dump_nic_error_log(mvm);
- if (!mvm->restart_fw)
- iwl_mvm_dump_sram(mvm);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ iwl_mvm_fw_error_sram_dump(mvm);
+ iwl_mvm_fw_error_rxf_dump(mvm);
+#endif
iwl_mvm_nic_restart(mvm);
}
struct iwl_mvm *mvm;
u8 ap_sta_id;
u8 vif_count;
+ u8 offloading_tid;
+ bool disable_offloading;
};
+static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_d0i3_iter_data *iter_data)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct ieee80211_sta *ap_sta;
+ struct iwl_mvm_sta *mvmsta;
+ u32 available_tids = 0;
+ u8 tid;
+
+ if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
+ mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
+ return false;
+
+ ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
+ if (IS_ERR_OR_NULL(ap_sta))
+ return false;
+
+ mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
+ spin_lock_bh(&mvmsta->lock);
+ for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
+ struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
+
+ /*
+ * in case of pending tx packets, don't use this tid
+ * for offloading in order to prevent reuse of the same
+ * qos seq counters.
+ */
+ if (iwl_mvm_tid_queued(tid_data))
+ continue;
+
+ if (tid_data->state != IWL_AGG_OFF)
+ continue;
+
+ available_tids |= BIT(tid);
+ }
+ spin_unlock_bh(&mvmsta->lock);
+
+ /*
+ * disallow protocol offloading if we have no available tid
+ * (with no pending frames and no active aggregation,
+ * as we don't handle "holes" properly - the scheduler needs the
+ * frame's seq number and TFD index to match)
+ */
+ if (!available_tids)
+ return true;
+
+ /* for simplicity, just use the first available tid */
+ iter_data->offloading_tid = ffs(available_tids) - 1;
+ return false;
+}
+
static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
!vif->bss_conf.assoc)
return;
+ /*
+ * in case of pending tx packets or active aggregations,
+ * avoid offloading features in order to prevent reuse of
+ * the same qos seq counters.
+ */
+ if (iwl_mvm_disallow_offloading(mvm, vif, data))
+ data->disable_offloading = true;
+
iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
+ iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags);
/*
* on init/association, mvm already configures POWER_TABLE_CMD
data->vif_count++;
}
+static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
+ struct iwl_wowlan_config_cmd_v3 *cmd,
+ struct iwl_d0i3_iter_data *iter_data)
+{
+ struct ieee80211_sta *ap_sta;
+ struct iwl_mvm_sta *mvm_ap_sta;
+
+ if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
+ return;
+
+ rcu_read_lock();
+
+ ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
+ if (IS_ERR_OR_NULL(ap_sta))
+ goto out;
+
+ mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
+ cmd->common.is_11n_connection = ap_sta->ht_cap.ht_supported;
+ cmd->offloading_tid = iter_data->offloading_tid;
+
+ /*
+ * The d0i3 uCode takes care of the nonqos counters,
+ * so configure only the qos seq ones.
+ */
+ iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, &cmd->common);
+out:
+ rcu_read_unlock();
+}
static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
struct iwl_d0i3_iter_data d0i3_iter_data = {
.mvm = mvm,
};
- struct iwl_wowlan_config_cmd wowlan_config_cmd = {
- .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
- IWL_WOWLAN_WAKEUP_BEACON_MISS |
- IWL_WOWLAN_WAKEUP_LINK_CHANGE |
- IWL_WOWLAN_WAKEUP_BCN_FILTERING),
+ struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd = {
+ .common = {
+ .wakeup_filter =
+ cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
+ IWL_WOWLAN_WAKEUP_BEACON_MISS |
+ IWL_WOWLAN_WAKEUP_LINK_CHANGE |
+ IWL_WOWLAN_WAKEUP_BCN_FILTERING),
+ },
};
struct iwl_d3_manager_config d3_cfg_cmd = {
.min_sleep_time = cpu_to_le32(1000),
IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
+ /* make sure we have no running tx while configuring the qos */
+ set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
+ synchronize_net();
+
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_enter_d0i3_iterator,
&d0i3_iter_data);
if (d0i3_iter_data.vif_count == 1) {
mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
+ mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
} else {
WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
+ mvm->d0i3_offloading = false;
}
+ iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data);
ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
sizeof(wowlan_config_cmd),
&wowlan_config_cmd);
ieee80211_connection_loss(vif);
}
+void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
+{
+ struct ieee80211_sta *sta = NULL;
+ struct iwl_mvm_sta *mvm_ap_sta;
+ int i;
+ bool wake_queues = false;
+
+ lockdep_assert_held(&mvm->mutex);
+
+ spin_lock_bh(&mvm->d0i3_tx_lock);
+
+ if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
+ goto out;
+
+ IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
+
+ /* get the sta in order to update seq numbers and re-enqueue skbs */
+ sta = rcu_dereference_protected(
+ mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
+ lockdep_is_held(&mvm->mutex));
+
+ if (IS_ERR_OR_NULL(sta)) {
+ sta = NULL;
+ goto out;
+ }
+
+ if (mvm->d0i3_offloading && qos_seq) {
+ /* update qos seq numbers if offloading was enabled */
+ mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv;
+ for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
+ u16 seq = le16_to_cpu(qos_seq[i]);
+ /* firmware stores last-used one, we store next one */
+ seq += 0x10;
+ mvm_ap_sta->tid_data[i].seq_number = seq;
+ }
+ }
+out:
+ /* re-enqueue (or drop) all packets */
+ while (!skb_queue_empty(&mvm->d0i3_tx)) {
+ struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
+
+ if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
+ ieee80211_free_txskb(mvm->hw, skb);
+
+ /* if the skb_queue is not empty, we need to wake queues */
+ wake_queues = true;
+ }
+ clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
+ wake_up(&mvm->d0i3_exit_waitq);
+ mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
+ if (wake_queues)
+ ieee80211_wake_queues(mvm->hw);
+
+ spin_unlock_bh(&mvm->d0i3_tx_lock);
+}
+
static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
{
struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
.id = WOWLAN_GET_STATUSES,
.flags = CMD_SYNC | CMD_HIGH_PRIO | CMD_WANT_SKB,
};
- struct iwl_wowlan_status_v6 *status;
+ struct iwl_wowlan_status *status;
int ret;
u32 disconnection_reasons, wakeup_reasons;
+ __le16 *qos_seq = NULL;
mutex_lock(&mvm->mutex);
ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
status = (void *)get_status_cmd.resp_pkt->data;
wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
+ qos_seq = status->qos_seq_ctr;
IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
iwl_free_resp(&get_status_cmd);
out:
+ iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
mutex_unlock(&mvm->mutex);
}
return ret;
}
+static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
+ struct napi_struct *napi,
+ struct net_device *napi_dev,
+ int (*poll)(struct napi_struct *, int),
+ int weight)
+{
+ struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
+
+ ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
+}
+
static const struct iwl_op_mode_ops iwl_mvm_ops = {
.start = iwl_op_mode_mvm_start,
.stop = iwl_op_mode_mvm_stop,
.nic_config = iwl_mvm_nic_config,
.enter_d0i3 = iwl_mvm_enter_d0i3,
.exit_d0i3 = iwl_mvm_exit_d0i3,
+ .napi_add = iwl_mvm_napi_add,
};
projects / firefly-linux-kernel-4.4.55.git / blobdiff