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authorJohannes Berg <johannes.berg@intel.com>2010-08-23 16:56:58 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-08-25 20:33:22 +0200
commit290f599cc6ee8c769355486b7d98fd1dc5115d76 (patch)
tree28b71bd92e55bed71dce909e8c9e027b9fe8bf6d /drivers/net/wireless/iwlwifi/iwl-agn-rs.h
parentiwlwifi: add BT notification support for bt coex (diff)
downloadlinux-290f599cc6ee8c769355486b7d98fd1dc5115d76.tar.xz
linux-290f599cc6ee8c769355486b7d98fd1dc5115d76.zip
iwlagn: let bluetooth traffic load impact rate scale
Depending on the amount of bluetooth traffic, using the shared antenna (antenna B) will have adverse impact on both bluetooth and wireless traffic. Add controls to improve the situation by making rate scaling depend on the BT load. When there's high bluetooth traffic load, there's little point in trying to aggregate as BT traffic would disrupt the aggregated frames all the time, so simply don't start sessions then. When BT traffic returns to lower levels, the rate scaling will come here again automatically when wifi traffic is high enough, and then it will be able to successfully enable aggregation. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rs.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
index 8292f6d48ec6..3970ab1deaf9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
@@ -432,6 +432,8 @@ struct iwl_lq_sta {
u32 last_rate_n_flags;
/* packets destined for this STA are aggregated */
u8 is_agg;
+ /* BT traffic this sta was last updated in */
+ u8 last_bt_traffic;
};
static inline u8 num_of_ant(u8 mask)