From c9de2fa9603e0861fe72cd804f2b6524c26209ef Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Thu, 16 Mar 2017 10:44:31 +0200
Subject: [PATCH 025/146] iwlwifi: mvm: add AMSDU flag to offload assist
Git-commit: f5bd90b72d613ad5a9c3b38dee6ae6b5e3565be4
Patch-mainline: v4.13-rc1
References: FATE#322675
Enable offload assist for AMSDU when the AMSDU present flag is set.
Fixes: a830baba9c2e ("iwlwifi: mvm: support new TX API")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 663b17d96705..5a87e4167cb1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -480,8 +480,14 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
struct iwl_tx_cmd_gen2 *cmd = (void *)dev_cmd->payload;
u16 offload_assist = iwl_mvm_tx_csum(mvm, skb, hdr, info);
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+
+ if (*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
+ offload_assist |= BIT(TX_CMD_OFFLD_AMSDU);
+ }
+
/* padding is inserted later in transport */
- /* FIXME - check for AMSDU may need to be removed */
if (ieee80211_hdrlen(hdr->frame_control) % 4 &&
!(offload_assist & BIT(TX_CMD_OFFLD_AMSDU)))
offload_assist |= BIT(TX_CMD_OFFLD_PAD);
--
2.12.3