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iwlwifi: mvm: support BAR in reorder buffer

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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: b915c10174 ("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>
This commit is contained in:
Sara Sharon 2016-08-08 13:07:01 +03:00 committed by Luca Coelho
parent 3ee0f0e23e
commit 9a73a7d24d
1 changed files with 9 additions and 3 deletions
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12
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
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@ -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