diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2016-03-31 20:02:11 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-04-06 13:18:19 +0200 |
| commit | c9c5962b56c10c34d8fedc20cd6d6ebdaa2383c6 (patch) | |
| tree | 3b5b98cc8a18efeffabc86ed6ac4247b7311a294 /net/mac80211/sta_info.h | |
| parent | 49ddf8e6e2347cffdcf83d1ca2d04ff929820178 (diff) | |
mac80211: enable collecting station statistics per-CPU
If the driver advertises the new HW flag USE_RSS, make the
station statistics on the fast-rx path per-CPU. This will
enable calling the RX in parallel, only hitting locking or
shared cachelines when the fast-RX path isn't available.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index a0a06609338d..dd6c6d400208 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -297,6 +297,7 @@ struct ieee80211_fast_tx { * @key: bool indicating encryption is expected (key is set) * @sta_notify: notify the MLME code (once) * @internal_forward: forward froms internally on AP/VLAN type interfaces + * @uses_rss: copy of USES_RSS hw flag * @da_offs: offset of the DA in the header (for header conversion) * @sa_offs: offset of the SA in the header (for header conversion) * @rcu_head: RCU head for freeing this structure @@ -311,7 +312,8 @@ struct ieee80211_fast_rx { u8 icv_len; u8 key:1, sta_notify:1, - internal_forward:1; + internal_forward:1, + uses_rss:1; u8 da_offs, sa_offs; struct rcu_head rcu_head; @@ -367,6 +369,21 @@ struct mesh_sta { DECLARE_EWMA(signal, 1024, 8) +struct ieee80211_sta_rx_stats { + unsigned long packets; + unsigned long last_rx; + unsigned long num_duplicates; + unsigned long fragments; + unsigned long dropped; + int last_signal; + u8 chains; + s8 chain_signal_last[IEEE80211_MAX_CHAINS]; + u16 last_rate; + struct u64_stats_sync syncp; + u64 bytes; + u64 msdu[IEEE80211_NUM_TIDS + 1]; +}; + /** * struct sta_info - STA information * @@ -428,6 +445,8 @@ DECLARE_EWMA(signal, 1024, 8) * the BSS one. * @tx_stats: TX statistics * @rx_stats: RX statistics + * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs + * this (by advertising the USES_RSS hw flag) * @status_stats: TX status statistics */ struct sta_info { @@ -448,6 +467,7 @@ struct sta_info { struct ieee80211_fast_tx __rcu *fast_tx; struct ieee80211_fast_rx __rcu *fast_rx; + struct ieee80211_sta_rx_stats __percpu *pcpu_rx_stats; #ifdef CONFIG_MAC80211_MESH struct mesh_sta *mesh; @@ -477,21 +497,7 @@ struct sta_info { long last_connected; /* Updated from RX path only, no locking requirements */ - struct { - unsigned long packets; - unsigned long last_rx; - unsigned long num_duplicates; - unsigned long fragments; - unsigned long dropped; - int last_signal; - u8 chains; - s8 chain_signal_last[IEEE80211_MAX_CHAINS]; - u16 last_rate; - - struct u64_stats_sync syncp; - u64 bytes; - u64 msdu[IEEE80211_NUM_TIDS + 1]; - } rx_stats; + struct ieee80211_sta_rx_stats rx_stats; struct { struct ewma_signal signal; struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS]; |