[PATCH 18/31] iwlwifi: mvm: support aggs of 64 frames in A000 family

[Luca Coelho <luca@coelho.fi>]

From: Liad Kaufman <liad.kaufman@intel.com>

A SCD bug was fixed in the A000 family, allowing to
support aggregations of 64 frames (rather than 63).

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rs.c  |  6 +++++-
 drivers/net/wireless/intel/iwlwifi/mvm/rs.h  |  2 ++
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 11 +++++++++--
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index a02dda8d9ea3..65beca3a457a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -3233,7 +3233,11 @@ static void rs_build_rates_table_from_fixed(struct iwl_mvm *mvm,
 	if (num_of_ant(ant) == 1)
 		lq_cmd->single_stream_ant_msk = ant;
 
-	lq_cmd->agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+	if (!mvm->trans->cfg->gen2)
+		lq_cmd->agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+	else
+		lq_cmd->agg_frame_cnt_limit =
+			LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF;
 }
 #endif /* CONFIG_MAC80211_DEBUGFS */
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
index 3abde1cb0303..32b4d66debea 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
@@ -145,6 +145,8 @@ enum {
 
 #define LINK_QUAL_AGG_FRAME_LIMIT_DEF	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MAX	(63)
+#define LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF	(64)
+#define LINK_QUAL_AGG_FRAME_LIMIT_GEN2_MAX	(64)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN	(0)
 
 #define LQ_SIZE		2	/* 2 mode tables:  "Active" and "Search" */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 9ec427966533..ee7c978fe5ab 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1354,7 +1354,10 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 	mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id,
 						      mvmvif->color);
 	mvm_sta->vif = vif;
-	mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+	if (!mvm->trans->cfg->gen2)
+		mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+	else
+		mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF;
 	mvm_sta->tx_protection = 0;
 	mvm_sta->tt_tx_protection = false;
 	mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK;
@@ -2677,7 +2680,11 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE)
 		     != IWL_MAX_TID_COUNT);
 
-	buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
+	if (!mvm->trans->cfg->gen2)
+		buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
+	else
+		buf_size = min_t(int, buf_size,
+				 LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF);
 
 	spin_lock_bh(&mvmsta->lock);
 	ssn = tid_data->ssn;
-- 
2.11.0