diff options
| author | Sara Sharon <sara.sharon@intel.com> | 2017-01-31 14:36:10 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2017-04-19 22:21:47 +0300 |
| commit | a56cb4f0d826359d98adf12cb5e0a2de35e8aa59 (patch) | |
| tree | 4fc90e701551e71f06163f6622b7c80db50fe538 /drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | |
| parent | bbf049d92a718ddba70d72388dcdea5304a3f723 (diff) | |
iwlwifi: mvm: work around HW issue with AMSDU de-aggregation
Seems like HW is reversing addr3 in the MAC header of de-aggregated
AMSDU. Reverse it back.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index 44072c3c4b5f..c99775039f59 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -911,12 +911,19 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, * Our hardware de-aggregates AMSDUs but copies the mac header * as it to the de-aggregated MPDUs. We need to turn off the * AMSDU bit in the QoS control ourselves. + * In addition, HW reverses addr3 - reverse it back. */ if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) && !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) { + int i; u8 *qc = ieee80211_get_qos_ctl(hdr); + u8 mac_addr[ETH_ALEN]; *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + + for (i = 0; i < ETH_ALEN; i++) + mac_addr[i] = hdr->addr3[ETH_ALEN - i - 1]; + ether_addr_copy(hdr->addr3, mac_addr); } if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) iwl_mvm_agg_rx_received(mvm, baid); |