Define a flag to indicate hardware TX fragmentation and a callback in
mac80211_ops to update the fragmentation threshold in the driver.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
include/net/mac80211.h | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9fdf982..25ced5c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1048,6 +1048,11 @@ enum ieee80211_tkip_key_type {
* to decrypt group addressed frames, then IBSS RSN support is still
* possible but software crypto will be used. Advertise the wiphy flag
* only in that case.
+ *
+ * @IEEE80211_HW_TX_FRAGMENTATION: Packet fragmentation is done in hardware.
+ * The stack does not fragment packets in this case. The driver must
+ * update its internal fragmentation threshold by implementing the
+ * set_frag_threshold callback.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1072,6 +1077,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_CONNECTION_MONITOR = 1<<19,
IEEE80211_HW_SUPPORTS_CQM_RSSI = 1<<20,
IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21,
+ IEEE80211_HW_TX_FRAGMENTATION = 1<<22,
};
/**
@@ -1652,6 +1658,11 @@ enum ieee80211_ampdu_mlme_action {
* and IV16) for the given key from hardware.
* The callback must be atomic.
*
+ * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if
+ * the device does fragmentation by itself; if this method is assigned then
+ * the stack will not do fragmentation.
+ * The callback can sleep.
+ *
* @set_rts_threshold: Configuration of RTS threshold (if device needs it)
* The callback can sleep.
*
@@ -1765,6 +1776,7 @@ struct ieee80211_ops {
struct ieee80211_low_level_stats *stats);
void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
u32 *iv32, u16 *iv16);
+ int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
int (*sta_add)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
--
1.7.1
--
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