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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: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Eliad Peller 2014-03-13 17:15:04 +02:00 committed by Emmanuel Grumbach
parent 2fd647f85d
commit 9a75b3df18
2 changed files with 16 additions and 0 deletions
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14
drivers/net/wireless/iwlwifi/mvm/rs.c
View File

@ -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

2
drivers/net/wireless/iwlwifi/mvm/rs.h
View File

@ -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;