From 5953ff6d6a3e92dd4f8d9d8e8a9359d7e180ae93 Mon Sep 17 00:00:00 2001 From: Ayala Beker Date: Tue, 20 Sep 2016 17:31:19 +0300 Subject: [PATCH] mac80211: implement nan_change_conf Implement nan_change_conf callback which allows to change current NAN configuration (master preference and dual band operation). Store the current NAN configuration in sdata, so it can be used both to provide the driver the updated configuration with changes and also it will be used in hw reconfig flows in next patches. Signed-off-by: Andrei Otcheretianski Signed-off-by: Emmanuel Grumbach Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/net/mac80211.h | 9 +++++++++ net/mac80211/cfg.c | 31 +++++++++++++++++++++++++++++++ net/mac80211/driver-ops.h | 21 +++++++++++++++++++++ net/mac80211/ieee80211_i.h | 10 ++++++++++ net/mac80211/trace.h | 31 +++++++++++++++++++++++++++++++ 5 files changed, 102 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index df9b5cff300c..ef8d02a2ce1a 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -3423,6 +3423,12 @@ enum ieee80211_reconfig_type { * * @start_nan: join an existing NAN cluster, or create a new one. * @stop_nan: leave the NAN cluster. + * @nan_change_conf: change NAN configuration. The data in cfg80211_nan_conf + * contains full new configuration and changes specify which parameters + * are changed with respect to the last NAN config. + * The driver gets both full configuration and the changed parameters since + * some devices may need the full configuration while others need only the + * changed parameters. */ struct ieee80211_ops { void (*tx)(struct ieee80211_hw *hw, @@ -3664,6 +3670,9 @@ struct ieee80211_ops { struct cfg80211_nan_conf *conf); int (*stop_nan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); + int (*nan_change_conf)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_nan_conf *conf, u32 changes); }; /** diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9aabb0932d24..38fdb539cab3 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -186,6 +186,36 @@ static void ieee80211_stop_nan(struct wiphy *wiphy, ieee80211_sdata_stop(sdata); } +static int ieee80211_nan_change_conf(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct cfg80211_nan_conf *conf, + u32 changes) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + struct cfg80211_nan_conf new_conf; + int ret = 0; + + if (sdata->vif.type != NL80211_IFTYPE_NAN) + return -EOPNOTSUPP; + + if (!ieee80211_sdata_running(sdata)) + return -ENETDOWN; + + new_conf = sdata->u.nan.conf; + + if (changes & CFG80211_NAN_CONF_CHANGED_PREF) + new_conf.master_pref = conf->master_pref; + + if (changes & CFG80211_NAN_CONF_CHANGED_DUAL) + new_conf.dual = conf->dual; + + ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); + if (!ret) + sdata->u.nan.conf = new_conf; + + return ret; +} + static int ieee80211_set_noack_map(struct wiphy *wiphy, struct net_device *dev, u16 noack_map) @@ -3500,4 +3530,5 @@ const struct cfg80211_ops mac80211_config_ops = { .del_tx_ts = ieee80211_del_tx_ts, .start_nan = ieee80211_start_nan, .stop_nan = ieee80211_stop_nan, + .nan_change_conf = ieee80211_nan_change_conf, }; diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index e52cfb855bd9..daaa409bec6f 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -1192,4 +1192,25 @@ static inline void drv_stop_nan(struct ieee80211_local *local, trace_drv_return_void(local); } +static inline int drv_nan_change_conf(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct cfg80211_nan_conf *conf, + u32 changes) +{ + int ret; + + might_sleep(); + check_sdata_in_driver(sdata); + + if (!local->ops->nan_change_conf) + return -EOPNOTSUPP; + + trace_drv_nan_change_conf(local, sdata, conf, changes); + ret = local->ops->nan_change_conf(&local->hw, &sdata->vif, conf, + changes); + trace_drv_return_int(local, ret); + + return ret; +} + #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c71c73594790..712b20b05660 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -830,6 +830,15 @@ struct ieee80211_if_mntr { u8 mu_follow_addr[ETH_ALEN] __aligned(2); }; +/** + * struct ieee80211_if_nan - NAN state + * + * @conf: current NAN configuration + */ +struct ieee80211_if_nan { + struct cfg80211_nan_conf conf; +}; + struct ieee80211_sub_if_data { struct list_head list; @@ -929,6 +938,7 @@ struct ieee80211_sub_if_data { struct ieee80211_if_mesh mesh; struct ieee80211_if_ocb ocb; struct ieee80211_if_mntr mntr; + struct ieee80211_if_nan nan; } u; #ifdef CONFIG_MAC80211_DEBUGFS diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index deefbfb9f6fb..0bafe1159d01 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -1750,6 +1750,37 @@ TRACE_EVENT(drv_stop_nan, ) ); +TRACE_EVENT(drv_nan_change_conf, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct cfg80211_nan_conf *conf, + u32 changes), + + TP_ARGS(local, sdata, conf, changes), + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + __field(u8, master_pref) + __field(u8, dual) + __field(u32, changes) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + __entry->master_pref = conf->master_pref; + __entry->dual = conf->dual; + __entry->changes = changes; + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT + ", master preference: %u, dual: %d, changes: 0x%x", + LOCAL_PR_ARG, VIF_PR_ARG, __entry->master_pref, + __entry->dual, __entry->changes + ) +); + /* * Tracing for API calls that drivers call. */ -- 2.20.1