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authorJohannes Berg <johannes.berg@intel.com>2021-06-18 13:41:55 +0300
committerJohannes Berg <johannes.berg@intel.com>2021-06-23 14:10:46 +0300
commit15fae3410f1d879b18e08fe8ef293d538549dfcb (patch)
tree1c6627e47f125058853e0dcdf3dddd53be035d50 /include/net/mac80211.h
parent7d29bc50b30e58102dd0e7a6beb1a72cc41029c5 (diff)
downloadlinux-15fae3410f1d879b18e08fe8ef293d538549dfcb.tar.xz
mac80211: notify driver on mgd TX completion
We have mgd_prepare_tx(), but sometimes drivers may want/need to take action when the exchange finishes, whether successfully or not. Add a notification to the driver on completion, i.e. call the new method mgd_complete_tx(). To unify the two scenarios, and to add more information, make both of them take a struct that has the duration (prepare only), subtype (both) and success (complete only). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210618133832.5d94e78f6230.I6dc979606b6f28701b740d7aab725f7853a5a155@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/mac80211.h')
-rw-r--r--include/net/mac80211.h28
1 files changed, 25 insertions, 3 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5d3ce1bd5753..9afbcac61c2a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3347,6 +3347,21 @@ enum ieee80211_reconfig_type {
};
/**
+ * struct ieee80211_prep_tx_info - prepare TX information
+ * @duration: if non-zero, hint about the required duration,
+ * only used with the mgd_prepare_tx() method.
+ * @subtype: frame subtype (auth, (re)assoc, deauth, disassoc)
+ * @success: whether the frame exchange was successful, only
+ * used with the mgd_complete_tx() method, and then only
+ * valid for auth and (re)assoc.
+ */
+struct ieee80211_prep_tx_info {
+ u16 duration;
+ u16 subtype;
+ u8 success:1;
+};
+
+/**
* struct ieee80211_ops - callbacks from mac80211 to the driver
*
* This structure contains various callbacks that the driver may
@@ -3758,9 +3773,13 @@ enum ieee80211_reconfig_type {
* frame in case that no beacon was heard from the AP/P2P GO.
* The callback will be called before each transmission and upon return
* mac80211 will transmit the frame right away.
- * If duration is greater than zero, mac80211 hints to the driver the
- * duration for which the operation is requested.
+ * Additional information is passed in the &struct ieee80211_prep_tx_info
+ * data. If duration there is greater than zero, mac80211 hints to the
+ * driver the duration for which the operation is requested.
* The callback is optional and can (should!) sleep.
+ * @mgd_complete_tx: Notify the driver that the response frame for a previously
+ * transmitted frame announced with @mgd_prepare_tx was received, the data
+ * is filled similarly to @mgd_prepare_tx though the duration is not used.
*
* @mgd_protect_tdls_discover: Protect a TDLS discovery session. After sending
* a TDLS discovery-request, we expect a reply to arrive on the AP's
@@ -4111,7 +4130,10 @@ struct ieee80211_ops {
void (*mgd_prepare_tx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- u16 duration);
+ struct ieee80211_prep_tx_info *info);
+ void (*mgd_complete_tx)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_prep_tx_info *info);
void (*mgd_protect_tdls_discover)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);