[PATCH 01/14] iwlwifi: mvm: flip AMSDU addresses only for 9000 family
From: Luca Coelho <hidden>
Date: 2018-03-28 14:12:06
Subsystem:
intel wireless wifi link (iwlwifi), the rest · Maintainers:
Miri Korenblit, Linus Torvalds
From: Sara Sharon <redacted> Hardware bug was fixed in later generation. Signed-off-by: Sara Sharon <redacted> Signed-off-by: Luca Coelho <redacted> --- drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 580de5851fc7..4a4ccfd11e5b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c@@ -831,6 +831,16 @@ static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm, rcu_read_unlock(); } +static void iwl_mvm_flip_address(u8 *addr) +{ + int i; + u8 mac_addr[ETH_ALEN]; + + for (i = 0; i < ETH_ALEN; i++) + mac_addr[i] = addr[ETH_ALEN - i - 1]; + ether_addr_copy(addr, mac_addr); +} + void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, struct iwl_rx_cmd_buffer *rxb, int queue) {
@@ -985,21 +995,16 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, */ 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 (mvm->trans->cfg->device_family == + IWL_DEVICE_FAMILY_9000) { + iwl_mvm_flip_address(hdr->addr3); - if (ieee80211_has_a4(hdr->frame_control)) { - for (i = 0; i < ETH_ALEN; i++) - mac_addr[i] = - hdr->addr4[ETH_ALEN - i - 1]; - ether_addr_copy(hdr->addr4, mac_addr); + if (ieee80211_has_a4(hdr->frame_control)) + iwl_mvm_flip_address(hdr->addr4); } } if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {
--
2.16.2