iwlwifi: mvm: Add debugfs entry to enable scan offload notification
This option enables scan offload iteration complete notification from
firmware which includes the last iteration's status and the scanned
channels from the current iteration.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index f1b3405..f89b795 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -1490,6 +1490,26 @@
return count;
}
+static ssize_t iwl_dbgfs_enable_scan_iteration_notif_write(struct iwl_mvm *mvm,
+ char *buf,
+ size_t count,
+ loff_t *ppos)
+{
+ int val;
+
+ mutex_lock(&mvm->mutex);
+
+ if (kstrtoint(buf, 10, &val)) {
+ mutex_unlock(&mvm->mutex);
+ return -EINVAL;
+ }
+
+ mvm->scan_iter_notif_enabled = val;
+ mutex_unlock(&mvm->mutex);
+
+ return count;
+}
+
MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
/* Device wide debugfs entries */
@@ -1512,6 +1532,7 @@
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
+MVM_DEBUGFS_WRITE_FILE_OPS(enable_scan_iteration_notif, 8);
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
@@ -1555,6 +1576,8 @@
MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
+ MVM_DEBUGFS_ADD_FILE(enable_scan_iteration_notif, mvm->debugfs_dir,
+ S_IWUSR);
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index c95297e..6355127 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -642,6 +642,8 @@
bool disable_power_off;
bool disable_power_off_d3;
+ bool scan_iter_notif_enabled;
+
struct debugfs_blob_wrapper nvm_hw_blob;
struct debugfs_blob_wrapper nvm_sw_blob;
struct debugfs_blob_wrapper nvm_calib_blob;
@@ -1061,6 +1063,9 @@
int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_scan_offload_iter_complete_notif(struct iwl_mvm *mvm,
+ struct iwl_rx_cmd_buffer *rxb,
+ struct iwl_device_cmd *cmd);
int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct cfg80211_sched_scan_request *req,
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index b0583fc..12b565a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -234,6 +234,8 @@
RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
+ RX_HANDLER(SCAN_ITERATION_COMPLETE,
+ iwl_mvm_rx_scan_offload_iter_complete_notif, false),
RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
iwl_mvm_rx_scan_offload_complete_notif, true),
RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_offload_results,
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 348b9c4..199f6fc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -536,6 +536,19 @@
return 0;
}
+int iwl_mvm_rx_scan_offload_iter_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_complete_notif *notif = (void *)pkt->data;
+
+ IWL_DEBUG_SCAN(mvm,
+ "Scan offload iteration complete: status=0x%x scanned channels=%d\n",
+ notif->status, notif->scanned_channels);
+ return 0;
+}
+
int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd)
{
@@ -1468,6 +1481,11 @@
if (req->n_ssids == 0)
flags |= IWL_MVM_LMAC_SCAN_FLAG_PASSIVE;
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ if (mvm->scan_iter_notif_enabled)
+ flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
+#endif
+
cmd->scan_flags |= cpu_to_le32(flags);
cmd->flags = iwl_mvm_scan_rxon_flags(req->channels[0]->band);
