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authorGregory Greenman <gregory.greenman@intel.com>2017-11-01 08:16:29 +0300
committerLuca Coelho <luciano.coelho@intel.com>2017-12-05 22:01:40 +0300
commitecaf71de414345c68a05c403d33dd0cd89b2c85f (patch)
treeec3f19463b461947745dde1b330849a1c1fc19c3 /drivers/net/wireless/intel/iwlwifi/mvm/rs.h
parent6362ab721ef5c4ecfa01f53ad4137d3d984f0c6c (diff)
downloadlinux-ecaf71de414345c68a05c403d33dd0cd89b2c85f.tar.xz
iwlwifi: mvm: rs: introduce new API for rate scaling
New devices will have rate scaling algorithm running in the firmware. With this feature, the driver's responsiblity is to provide an initial configuration and to handle notifications regarding recent rates and some other parameters. Debugfs hooks will be still available for reading the current rate/statistics and setting a fixed rate. The old API is supported so far, though both APIs cannot be used simultaneously. This is the first patch in the series. It adds a new TLV specifying FW support for the new API and updates lq_sta to support two types of rate scaling. Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rs.h')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/rs.h33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
index 32b4d66debea..5075a8061c82 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
@@ -218,6 +218,38 @@ struct iwl_rate_mcs_info {
};
/**
+ * struct iwl_lq_sta_rs_fw - rate and related statistics for RS in FW
+ * @last_rate_n_flags: last rate reported by FW
+ * @sta_id: the id of the station
+#ifdef CONFIG_MAC80211_DEBUGFS
+ * @dbg_fixed_rate: for debug, use fixed rate if not 0
+ * @dbg_agg_frame_count_lim: for debug, max number of frames in A-MPDU
+#endif
+ * @chains: bitmask of chains reported in %chain_signal
+ * @chain_signal: per chain signal strength
+ * @last_rssi: last rssi reported
+ * @drv: pointer back to the driver data
+ */
+
+struct iwl_lq_sta_rs_fw {
+ /* last tx rate_n_flags */
+ u32 last_rate_n_flags;
+
+ /* persistent fields - initialized only once - keep last! */
+ struct lq_sta_pers_rs_fw {
+ u32 sta_id;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ u32 dbg_fixed_rate;
+ u16 dbg_agg_frame_count_lim;
+#endif
+ u8 chains;
+ s8 chain_signal[IEEE80211_MAX_CHAINS];
+ s8 last_rssi;
+ struct iwl_mvm *drv;
+ } pers;
+};
+
+/**
* struct iwl_rate_scale_data -- tx success history for one rate
*/
struct iwl_rate_scale_data {
@@ -406,5 +438,4 @@ struct iwl_mvm_sta;
int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
bool enable);
-
#endif /* __rs__ */