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authorSara Sharon <sara.sharon@intel.com>2016-08-08 10:07:01 (GMT)
committerLuca Coelho <luciano.coelho@intel.com>2016-09-19 07:09:34 (GMT)
commit9a73a7d24d51eaf9e43c771c53cf7b594e5b5334 (patch)
tree235f1c2125c6376bb4b8803eafe874209a85107a
parent3ee0f0e23e4f290b2ee0a273b34c6e4f95a209a0 (diff)
downloadlinux-9a73a7d24d51eaf9e43c771c53cf7b594e5b5334.tar.xz
iwlwifi: mvm: support BAR in reorder buffer
On default queue we will not receive frame release notification, but the BAR itself. Upon receiving the BAR driver should look at the NSSN and adjust window accordingly. Fixes: b915c10174fb ("iwlwifi: mvm: add reorder buffer per queue") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index b386628..0274f14 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -600,9 +600,10 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
mvm_sta = iwl_mvm_sta_from_mac80211(sta);
- /* not a data packet */
- if (!ieee80211_is_data_qos(hdr->frame_control) ||
- is_multicast_ether_addr(hdr->addr1))
+ /* not a data packet or a bar */
+ if (!ieee80211_is_back_req(hdr->frame_control) &&
+ (!ieee80211_is_data_qos(hdr->frame_control) ||
+ is_multicast_ether_addr(hdr->addr1)))
return false;
if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
@@ -626,6 +627,11 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
spin_lock_bh(&buffer->lock);
+ if (ieee80211_is_back_req(hdr->frame_control)) {
+ iwl_mvm_release_frames(mvm, sta, napi, buffer, nssn);
+ goto drop;
+ }
+
/*
* If there was a significant jump in the nssn - adjust.
* If the SN is smaller than the NSSN it might need to first go into