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Commit 9a75b3df authored by Eliad Peller's avatar Eliad Peller Committed by Emmanuel Grumbach
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iwlwifi: mvm: add debugfs file for fixed reduced tx power 



Allow fixing the tx power reduction through debugfs
file.

The change doesn't take affect immediately, but
will be considered the next time tpc is evaluated.

Signed-off-by: default avatarEliad Peller <eliadx.peller@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 2fd647f8

drivers/net/wireless/iwlwifi/mvm/rs.c

+14 −0
Original line number Diff line number Diff line
@@ -1863,6 +1863,15 @@ static bool rs_tpc_perform(struct iwl_mvm *mvm, 
	int weak, strong;

	int weak_tpt = IWL_INVALID_VALUE, strong_tpt = IWL_INVALID_VALUE;



#ifdef CONFIG_MAC80211_DEBUGFS

	if (lq_sta->dbg_fixed_txp_reduction <= TPC_MAX_REDUCTION) {

		IWL_DEBUG_RATE(mvm, "fixed tpc: %d",

			       lq_sta->dbg_fixed_txp_reduction);

		lq_sta->lq.reduced_tpc = lq_sta->dbg_fixed_txp_reduction;

		return cur != lq_sta->dbg_fixed_txp_reduction;

	}

#endif



	rcu_read_lock();

	chanctx_conf = rcu_dereference(vif->chanctx_conf);

	if (WARN_ON(!chanctx_conf))
@@ -2613,6 +2622,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 
	lq_sta->is_agg = 0;

#ifdef CONFIG_MAC80211_DEBUGFS

	lq_sta->dbg_fixed_rate = 0;

	lq_sta->dbg_fixed_txp_reduction = TPC_INVALID;

#endif

#ifdef CONFIG_IWLWIFI_DEBUGFS

	iwl_mvm_reset_frame_stats(mvm, &mvm->drv_rx_stats);
@@ -3076,6 +3086,9 @@ static void rs_add_debugfs(void *mvm, void *mvm_sta, struct dentry *dir) 
	lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =

		debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir,

				  &lq_sta->tx_agg_tid_en);

	lq_sta->rs_sta_dbgfs_reduced_txp_file =

		debugfs_create_u8("reduced_tpc", S_IRUSR | S_IWUSR, dir,

				  &lq_sta->dbg_fixed_txp_reduction);

}



static void rs_remove_debugfs(void *mvm, void *mvm_sta)
@@ -3084,6 +3097,7 @@ static void rs_remove_debugfs(void *mvm, void *mvm_sta) 
	debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);

	debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);

	debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);

	debugfs_remove(lq_sta->rs_sta_dbgfs_reduced_txp_file);

}

#endif

drivers/net/wireless/iwlwifi/mvm/rs.h

+2 −0
Original line number Diff line number Diff line
@@ -336,7 +336,9 @@ struct iwl_lq_sta { 
	struct dentry *rs_sta_dbgfs_scale_table_file;

	struct dentry *rs_sta_dbgfs_stats_table_file;

	struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;

	struct dentry *rs_sta_dbgfs_reduced_txp_file;

	u32 dbg_fixed_rate;

	u8 dbg_fixed_txp_reduction;

#endif

	struct iwl_mvm *drv;