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Subject[PATCH 4.14 069/164] iwlwifi: mvm: enable RX offloading with TKIP and WEP
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Spinadel <david.spinadel@intel.com>

commit 9d0fc5a50a0548f8e5d61243e5e5f26d5c405aef upstream.

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

[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 4 +++-
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 12 +++++++++---
2 files changed, 12 insertions(+), 4 deletions(-)

--- 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
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -232,8 +232,8 @@ static void iwl_mvm_get_signal_strength(

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_
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))
@@ -812,7 +816,9 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *

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;
}

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