|
|
@@ -391,6 +391,21 @@ int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
+int iwl_mvm_rx_sched_scan_results(struct iwl_mvm *mvm,
|
|
|
+ struct iwl_rx_cmd_buffer *rxb,
|
|
|
+ struct iwl_device_cmd *cmd)
|
|
|
+{
|
|
|
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
|
+ struct iwl_sched_scan_results *notif = (void *)pkt->data;
|
|
|
+
|
|
|
+ if (notif->client_bitmap & SCAN_CLIENT_SCHED_SCAN) {
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n");
|
|
|
+ ieee80211_sched_scan_results(mvm->hw);
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
static bool iwl_mvm_scan_abort_notif(struct iwl_notif_wait_data *notif_wait,
|
|
|
struct iwl_rx_packet *pkt, void *data)
|
|
|
{
|
|
|
@@ -451,3 +466,406 @@ void iwl_mvm_cancel_scan(struct iwl_mvm *mvm)
|
|
|
out_remove_notif:
|
|
|
iwl_remove_notification(&mvm->notif_wait, &wait_scan_abort);
|
|
|
}
|
|
|
+
|
|
|
+int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
|
|
|
+ struct iwl_rx_cmd_buffer *rxb,
|
|
|
+ struct iwl_device_cmd *cmd)
|
|
|
+{
|
|
|
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
|
+ struct iwl_scan_offload_complete *scan_notif = (void *)pkt->data;
|
|
|
+
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Scheduled scan completed, status %s\n",
|
|
|
+ scan_notif->status == IWL_SCAN_OFFLOAD_COMPLETED ?
|
|
|
+ "completed" : "aborted");
|
|
|
+
|
|
|
+ mvm->scan_status = IWL_MVM_SCAN_NONE;
|
|
|
+ ieee80211_sched_scan_stopped(mvm->hw);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_scan_offload_build_tx_cmd(struct iwl_mvm *mvm,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct ieee80211_sched_scan_ies *ies,
|
|
|
+ enum ieee80211_band band,
|
|
|
+ struct iwl_tx_cmd *cmd,
|
|
|
+ u8 *data)
|
|
|
+{
|
|
|
+ u16 cmd_len;
|
|
|
+
|
|
|
+ cmd->tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL);
|
|
|
+ cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
|
|
|
+ cmd->sta_id = mvm->aux_sta.sta_id;
|
|
|
+
|
|
|
+ cmd->rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm, band, false);
|
|
|
+
|
|
|
+ cmd_len = iwl_mvm_fill_probe_req((struct ieee80211_mgmt *)data,
|
|
|
+ vif->addr,
|
|
|
+ 1, NULL, 0,
|
|
|
+ ies->ie[band], ies->len[band],
|
|
|
+ SCAN_OFFLOAD_PROBE_REQ_SIZE);
|
|
|
+ cmd->len = cpu_to_le16(cmd_len);
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_build_scan_cmd(struct iwl_mvm *mvm,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct cfg80211_sched_scan_request *req,
|
|
|
+ struct iwl_scan_offload_cmd *scan)
|
|
|
+{
|
|
|
+ scan->channel_count =
|
|
|
+ mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels +
|
|
|
+ mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
|
|
|
+ scan->quiet_time = cpu_to_le16(IWL_ACTIVE_QUIET_TIME);
|
|
|
+ scan->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH);
|
|
|
+ scan->good_CRC_th = IWL_GOOD_CRC_TH_DEFAULT;
|
|
|
+ scan->rx_chain = iwl_mvm_scan_rx_chain(mvm);
|
|
|
+ scan->max_out_time = cpu_to_le32(200 * 1024);
|
|
|
+ scan->suspend_time = iwl_mvm_scan_suspend_time(vif);
|
|
|
+ scan->filter_flags |= cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
|
|
|
+ MAC_FILTER_IN_BEACON);
|
|
|
+ scan->scan_type = cpu_to_le32(SCAN_TYPE_BACKGROUND);
|
|
|
+ scan->rep_count = cpu_to_le32(1);
|
|
|
+}
|
|
|
+
|
|
|
+static int iwl_ssid_exist(u8 *ssid, u8 ssid_len, struct iwl_ssid_ie *ssid_list)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+
|
|
|
+ for (i = 0; i < PROBE_OPTION_MAX; i++) {
|
|
|
+ if (!ssid_list[i].len)
|
|
|
+ break;
|
|
|
+ if (ssid_list[i].len == ssid_len &&
|
|
|
+ !memcmp(ssid_list->ssid, ssid, ssid_len))
|
|
|
+ return i;
|
|
|
+ }
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_scan_offload_build_ssid(struct cfg80211_sched_scan_request *req,
|
|
|
+ struct iwl_scan_offload_cmd *scan,
|
|
|
+ u32 *ssid_bitmap)
|
|
|
+{
|
|
|
+ int i, j;
|
|
|
+ int index;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * copy SSIDs from match list.
|
|
|
+ * iwl_config_sched_scan_profiles() uses the order of these ssids to
|
|
|
+ * config match list.
|
|
|
+ */
|
|
|
+ for (i = 0; i < req->n_match_sets && i < PROBE_OPTION_MAX; i++) {
|
|
|
+ scan->direct_scan[i].id = WLAN_EID_SSID;
|
|
|
+ scan->direct_scan[i].len = req->match_sets[i].ssid.ssid_len;
|
|
|
+ memcpy(scan->direct_scan[i].ssid, req->match_sets[i].ssid.ssid,
|
|
|
+ scan->direct_scan[i].len);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* add SSIDs from scan SSID list */
|
|
|
+ *ssid_bitmap = 0;
|
|
|
+ for (j = 0; j < req->n_ssids && i < PROBE_OPTION_MAX; j++) {
|
|
|
+ index = iwl_ssid_exist(req->ssids[j].ssid,
|
|
|
+ req->ssids[j].ssid_len,
|
|
|
+ scan->direct_scan);
|
|
|
+ if (index < 0) {
|
|
|
+ if (!req->ssids[j].ssid_len)
|
|
|
+ continue;
|
|
|
+ scan->direct_scan[i].id = WLAN_EID_SSID;
|
|
|
+ scan->direct_scan[i].len = req->ssids[j].ssid_len;
|
|
|
+ memcpy(scan->direct_scan[i].ssid, req->ssids[j].ssid,
|
|
|
+ scan->direct_scan[i].len);
|
|
|
+ *ssid_bitmap |= BIT(i + 1);
|
|
|
+ i++;
|
|
|
+ } else {
|
|
|
+ *ssid_bitmap |= BIT(index + 1);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_build_channel_cfg(struct iwl_mvm *mvm,
|
|
|
+ struct cfg80211_sched_scan_request *req,
|
|
|
+ struct iwl_scan_channel_cfg *channels,
|
|
|
+ enum ieee80211_band band,
|
|
|
+ int *head, int *tail,
|
|
|
+ u32 ssid_bitmap)
|
|
|
+{
|
|
|
+ struct ieee80211_supported_band *s_band;
|
|
|
+ int n_probes = req->n_ssids;
|
|
|
+ int n_channels = req->n_channels;
|
|
|
+ u8 active_dwell, passive_dwell;
|
|
|
+ int i, j, index = 0;
|
|
|
+ bool partial;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * We have to configure all supported channels, even if we don't want to
|
|
|
+ * scan on them, but we have to send channels in the order that we want
|
|
|
+ * to scan. So add requested channels to head of the list and others to
|
|
|
+ * the end.
|
|
|
+ */
|
|
|
+ active_dwell = iwl_mvm_get_active_dwell(band, n_probes);
|
|
|
+ passive_dwell = iwl_mvm_get_passive_dwell(band);
|
|
|
+ s_band = &mvm->nvm_data->bands[band];
|
|
|
+
|
|
|
+ for (i = 0; i < s_band->n_channels && *head <= *tail; i++) {
|
|
|
+ partial = false;
|
|
|
+ for (j = 0; j < n_channels; j++)
|
|
|
+ if (s_band->channels[i].center_freq ==
|
|
|
+ req->channels[j]->center_freq) {
|
|
|
+ index = *head;
|
|
|
+ (*head)++;
|
|
|
+ /*
|
|
|
+ * Channels that came with the request will be
|
|
|
+ * in partial scan .
|
|
|
+ */
|
|
|
+ partial = true;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (!partial) {
|
|
|
+ index = *tail;
|
|
|
+ (*tail)--;
|
|
|
+ }
|
|
|
+ channels->channel_number[index] =
|
|
|
+ cpu_to_le16(ieee80211_frequency_to_channel(
|
|
|
+ s_band->channels[i].center_freq));
|
|
|
+ channels->dwell_time[index][0] = active_dwell;
|
|
|
+ channels->dwell_time[index][1] = passive_dwell;
|
|
|
+
|
|
|
+ channels->iter_count[index] = cpu_to_le16(1);
|
|
|
+ channels->iter_interval[index] = 0;
|
|
|
+
|
|
|
+ if (!(s_band->channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
|
|
|
+ channels->type[index] |=
|
|
|
+ cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE);
|
|
|
+
|
|
|
+ channels->type[index] |=
|
|
|
+ cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_FULL);
|
|
|
+ if (partial)
|
|
|
+ channels->type[index] |=
|
|
|
+ cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_PARTIAL);
|
|
|
+
|
|
|
+ if (s_band->channels[i].flags & IEEE80211_CHAN_NO_HT40)
|
|
|
+ channels->type[index] |=
|
|
|
+ cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_NARROW);
|
|
|
+
|
|
|
+ /* scan for all SSIDs from req->ssids */
|
|
|
+ channels->type[index] |= cpu_to_le32(ssid_bitmap);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct cfg80211_sched_scan_request *req,
|
|
|
+ struct ieee80211_sched_scan_ies *ies)
|
|
|
+{
|
|
|
+ int supported_bands = 0;
|
|
|
+ int band_2ghz = mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels;
|
|
|
+ int band_5ghz = mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
|
|
|
+ int head = 0;
|
|
|
+ int tail = band_2ghz + band_5ghz;
|
|
|
+ u32 ssid_bitmap;
|
|
|
+ int cmd_len;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ struct iwl_scan_offload_cfg *scan_cfg;
|
|
|
+ struct iwl_host_cmd cmd = {
|
|
|
+ .id = SCAN_OFFLOAD_CONFIG_CMD,
|
|
|
+ .flags = CMD_SYNC,
|
|
|
+ };
|
|
|
+
|
|
|
+ lockdep_assert_held(&mvm->mutex);
|
|
|
+
|
|
|
+ if (band_2ghz)
|
|
|
+ supported_bands++;
|
|
|
+ if (band_5ghz)
|
|
|
+ supported_bands++;
|
|
|
+
|
|
|
+ cmd_len = sizeof(struct iwl_scan_offload_cfg) +
|
|
|
+ supported_bands * SCAN_OFFLOAD_PROBE_REQ_SIZE;
|
|
|
+
|
|
|
+ scan_cfg = kzalloc(cmd_len, GFP_KERNEL);
|
|
|
+ if (!scan_cfg)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ iwl_build_scan_cmd(mvm, vif, req, &scan_cfg->scan_cmd);
|
|
|
+ scan_cfg->scan_cmd.len = cpu_to_le16(cmd_len);
|
|
|
+
|
|
|
+ iwl_scan_offload_build_ssid(req, &scan_cfg->scan_cmd, &ssid_bitmap);
|
|
|
+ /* build tx frames for supported bands */
|
|
|
+ if (band_2ghz) {
|
|
|
+ iwl_scan_offload_build_tx_cmd(mvm, vif, ies,
|
|
|
+ IEEE80211_BAND_2GHZ,
|
|
|
+ &scan_cfg->scan_cmd.tx_cmd[0],
|
|
|
+ scan_cfg->data);
|
|
|
+ iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg,
|
|
|
+ IEEE80211_BAND_2GHZ, &head, &tail,
|
|
|
+ ssid_bitmap);
|
|
|
+ }
|
|
|
+ if (band_5ghz) {
|
|
|
+ iwl_scan_offload_build_tx_cmd(mvm, vif, ies,
|
|
|
+ IEEE80211_BAND_5GHZ,
|
|
|
+ &scan_cfg->scan_cmd.tx_cmd[1],
|
|
|
+ scan_cfg->data +
|
|
|
+ SCAN_OFFLOAD_PROBE_REQ_SIZE);
|
|
|
+ iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg,
|
|
|
+ IEEE80211_BAND_5GHZ, &head, &tail,
|
|
|
+ ssid_bitmap);
|
|
|
+ }
|
|
|
+
|
|
|
+ cmd.data[0] = scan_cfg;
|
|
|
+ cmd.len[0] = cmd_len;
|
|
|
+ cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
|
|
|
+
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Sending scheduled scan config\n");
|
|
|
+
|
|
|
+ ret = iwl_mvm_send_cmd(mvm, &cmd);
|
|
|
+ kfree(scan_cfg);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
|
|
|
+ struct cfg80211_sched_scan_request *req)
|
|
|
+{
|
|
|
+ struct iwl_scan_offload_profile *profile;
|
|
|
+ struct iwl_scan_offload_profile_cfg *profile_cfg;
|
|
|
+ struct iwl_scan_offload_blacklist *blacklist;
|
|
|
+ struct iwl_host_cmd cmd = {
|
|
|
+ .id = SCAN_OFFLOAD_UPDATE_PROFILES_CMD,
|
|
|
+ .flags = CMD_SYNC,
|
|
|
+ .len[1] = sizeof(*profile_cfg),
|
|
|
+ .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
|
|
|
+ .dataflags[1] = IWL_HCMD_DFL_NOCOPY,
|
|
|
+ };
|
|
|
+ int blacklist_len;
|
|
|
+ int i;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ if (WARN_ON(req->n_match_sets > IWL_SCAN_MAX_PROFILES))
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+ if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SHORT_BL)
|
|
|
+ blacklist_len = IWL_SCAN_SHORT_BLACKLIST_LEN;
|
|
|
+ else
|
|
|
+ blacklist_len = IWL_SCAN_MAX_BLACKLIST_LEN;
|
|
|
+
|
|
|
+ blacklist = kzalloc(sizeof(*blacklist) * blacklist_len, GFP_KERNEL);
|
|
|
+ if (!blacklist)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ profile_cfg = kzalloc(sizeof(*profile_cfg), GFP_KERNEL);
|
|
|
+ if (!profile_cfg) {
|
|
|
+ ret = -ENOMEM;
|
|
|
+ goto free_blacklist;
|
|
|
+ }
|
|
|
+
|
|
|
+ cmd.data[0] = blacklist;
|
|
|
+ cmd.len[0] = sizeof(*blacklist) * blacklist_len;
|
|
|
+ cmd.data[1] = profile_cfg;
|
|
|
+
|
|
|
+ /* No blacklist configuration */
|
|
|
+
|
|
|
+ profile_cfg->num_profiles = req->n_match_sets;
|
|
|
+ profile_cfg->active_clients = SCAN_CLIENT_SCHED_SCAN;
|
|
|
+ profile_cfg->pass_match = SCAN_CLIENT_SCHED_SCAN;
|
|
|
+ profile_cfg->match_notify = SCAN_CLIENT_SCHED_SCAN;
|
|
|
+
|
|
|
+ for (i = 0; i < req->n_match_sets; i++) {
|
|
|
+ profile = &profile_cfg->profiles[i];
|
|
|
+ profile->ssid_index = i;
|
|
|
+ /* Support any cipher and auth algorithm */
|
|
|
+ profile->unicast_cipher = 0xff;
|
|
|
+ profile->auth_alg = 0xff;
|
|
|
+ profile->network_type = IWL_NETWORK_TYPE_ANY;
|
|
|
+ profile->band_selection = IWL_SCAN_OFFLOAD_SELECT_ANY;
|
|
|
+ profile->client_bitmap = SCAN_CLIENT_SCHED_SCAN;
|
|
|
+ }
|
|
|
+
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n");
|
|
|
+
|
|
|
+ ret = iwl_mvm_send_cmd(mvm, &cmd);
|
|
|
+ kfree(profile_cfg);
|
|
|
+free_blacklist:
|
|
|
+ kfree(blacklist);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
|
|
|
+ struct cfg80211_sched_scan_request *req)
|
|
|
+{
|
|
|
+ struct iwl_scan_offload_req scan_req = {
|
|
|
+ .watchdog = IWL_SCHED_SCAN_WATCHDOG,
|
|
|
+
|
|
|
+ .schedule_line[0].iterations = IWL_FAST_SCHED_SCAN_ITERATIONS,
|
|
|
+ .schedule_line[0].delay = req->interval / 1000,
|
|
|
+ .schedule_line[0].full_scan_mul = 1,
|
|
|
+
|
|
|
+ .schedule_line[1].iterations = 0xff,
|
|
|
+ .schedule_line[1].delay = req->interval / 1000,
|
|
|
+ .schedule_line[1].full_scan_mul = IWL_FULL_SCAN_MULTIPLIER,
|
|
|
+ };
|
|
|
+
|
|
|
+ if (req->n_match_sets && req->match_sets[0].ssid.ssid_len) {
|
|
|
+ IWL_DEBUG_SCAN(mvm,
|
|
|
+ "Sending scheduled scan with filtering, filter len %d\n",
|
|
|
+ req->n_match_sets);
|
|
|
+ scan_req.flags |=
|
|
|
+ cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_FILTER_SSID);
|
|
|
+ } else {
|
|
|
+ IWL_DEBUG_SCAN(mvm,
|
|
|
+ "Sending Scheduled scan without filtering\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ return iwl_mvm_send_cmd_pdu(mvm, SCAN_OFFLOAD_REQUEST_CMD, CMD_SYNC,
|
|
|
+ sizeof(scan_req), &scan_req);
|
|
|
+}
|
|
|
+
|
|
|
+static int iwl_mvm_send_sched_scan_abort(struct iwl_mvm *mvm)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+ struct iwl_host_cmd cmd = {
|
|
|
+ .id = SCAN_OFFLOAD_ABORT_CMD,
|
|
|
+ .flags = CMD_SYNC,
|
|
|
+ };
|
|
|
+ u32 status;
|
|
|
+
|
|
|
+ /* Exit instantly with error when device is not ready
|
|
|
+ * to receive scan abort command or it does not perform
|
|
|
+ * scheduled scan currently */
|
|
|
+ if (mvm->scan_status != IWL_MVM_SCAN_SCHED)
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+ ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ if (status != CAN_ABORT_STATUS) {
|
|
|
+ /*
|
|
|
+ * The scan abort will return 1 for success or
|
|
|
+ * 2 for "failure". A failure condition can be
|
|
|
+ * due to simply not being in an active scan which
|
|
|
+ * can occur if we send the scan abort before the
|
|
|
+ * microcode has notified us that a scan is completed.
|
|
|
+ */
|
|
|
+ IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status);
|
|
|
+ ret = -EIO;
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+void iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ lockdep_assert_held(&mvm->mutex);
|
|
|
+
|
|
|
+ if (mvm->scan_status != IWL_MVM_SCAN_SCHED) {
|
|
|
+ IWL_DEBUG_SCAN(mvm, "No offloaded scan to stop\n");
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = iwl_mvm_send_sched_scan_abort(mvm);
|
|
|
+ if (ret)
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Send stop offload scan failed %d\n", ret);
|
|
|
+ else
|
|
|
+ IWL_DEBUG_SCAN(mvm, "Successfully sent stop offload scan\n");
|
|
|
+}
|
David Spinadel