iwlwifi: mvm: enable RX offloading with TKIP and WEP

Set the flag that indicates that ICV was stripped on if
this option was enabled in the HW.

Cc: stable@vger.kernel.org # 4.13+
[this is needed for the 9000-series HW to work properly]
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index ca0b553..921cab9 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -117,6 +117,7 @@
 #define FH_RSCSR_FRAME_INVALID         0x55550000
 #define FH_RSCSR_FRAME_ALIGN           0x40
 #define FH_RSCSR_RPA_EN                        BIT(25)
+#define FH_RSCSR_RADA_EN               BIT(26)
 #define FH_RSCSR_RXQ_POS               16
 #define FH_RSCSR_RXQ_MASK              0x3F0000
 
@@ -128,7 +129,8 @@ struct iwl_rx_packet {
         * 31:    flag flush RB request
         * 30:    flag ignore TC (terminal counter) request
         * 29:    flag fast IRQ request
-        * 28-26: Reserved
+        * 28-27: Reserved
+        * 26:    RADA enabled
         * 25:    Offload enabled
         * 24:    RPF enabled
         * 23:    RSS enabled

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 20fe23f..bf8409d 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -234,8 +234,8 @@ static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
 
 static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
                             struct ieee80211_rx_status *stats,
-                            struct iwl_rx_mpdu_desc *desc, int queue,
-                            u8 *crypt_len)
+                            struct iwl_rx_mpdu_desc *desc, u32 pkt_flags,
+                            int queue, u8 *crypt_len)
 {
        u16 status = le16_to_cpu(desc->status);
 
@@ -272,6 +272,10 @@ static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
                if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
                                IWL_RX_MPDU_STATUS_SEC_WEP)
                        *crypt_len = IEEE80211_WEP_IV_LEN;
+
+               if (pkt_flags & FH_RSCSR_RADA_EN)
+                       stats->flag |= RX_FLAG_ICV_STRIPPED;
+
                return 0;
        case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:
                if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
@@ -850,7 +854,9 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
 
        rx_status = IEEE80211_SKB_RXCB(skb);
 
-       if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, desc, queue, &crypt_len)) {
+       if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, desc,
+                             le32_to_cpu(pkt->len_n_flags), queue,
+                             &crypt_len)) {
                kfree_skb(skb);
                return;
        }