From: Golan Ben Ami <golan.ben.ami@xxxxxxxxx>
The smallest rb size supported today is 4k rx buffers.
22560 devices use 2k rxb's, so allow using 2k buffers.
Signed-off-by: Golan Ben Ami <golan.ben.ami@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 3 ++-
drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c | 8 ++++----
drivers/net/wireless/intel/iwlwifi/iwl-modparams.h | 8 +++++---
drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 7 +++++++
drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 2 ++
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 5 ++++-
drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 3 +++
7 files changed, 27 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 650214ff0a1c..38fcc6a9d421 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1787,7 +1787,8 @@ MODULE_PARM_DESC(11n_disable,
"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
MODULE_PARM_DESC(amsdu_size,
- "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
+ "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, "
+ "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c
index 777f5df8a0c6..a4c96215933b 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.c
@@ -7,6 +7,7 @@
*
* Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2018 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -18,9 +19,7 @@
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
+ * along with this program;
*
* The full GNU General Public License is included in this distribution
* in the file called COPYING.
@@ -33,6 +32,7 @@
*
* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2018 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -767,7 +767,7 @@ void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg,
ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
if ((cfg->mq_rx_supported &&
- iwlwifi_mod_params.amsdu_size != IWL_AMSDU_4K) ||
+ iwlwifi_mod_params.amsdu_size == IWL_AMSDU_DEF) ||
iwlwifi_mod_params.amsdu_size >= IWL_AMSDU_8K)
ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
index 5dd848cb9d20..97072cf75bca 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
@@ -6,6 +6,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2018 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -17,9 +18,7 @@
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
+ * along with this program;
*
* The full GNU General Public License is included in this distribution
* in the file called COPYING.
@@ -31,6 +30,7 @@
* BSD LICENSE
*
* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2018 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -90,6 +90,8 @@ enum iwl_amsdu_size {
IWL_AMSDU_4K = 1,
IWL_AMSDU_8K = 2,
IWL_AMSDU_12K = 3,
+ /* Add 2K at the end to avoid breaking current API */
+ IWL_AMSDU_2K = 4,
};
enum iwl_uapsd_disable {
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 7bb0360d6807..b4c3a957c102 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -430,6 +430,13 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
else
vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
break;
+ case IWL_AMSDU_2K:
+ if (cfg->mq_rx_supported)
+ vht_cap->cap |=
+ IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
+ else
+ WARN(1, "RB size of 2K is not supported by this device\n");
+ break;
case IWL_AMSDU_4K:
vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
break;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 1b9c627ee34d..4229992073b6 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -350,6 +350,8 @@ static inline int
iwl_trans_get_rb_size_order(enum iwl_amsdu_size rb_size)
{
switch (rb_size) {
+ case IWL_AMSDU_2K:
+ return get_order(2 * 1024);
case IWL_AMSDU_4K:
return get_order(4 * 1024);
case IWL_AMSDU_8K:
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 5d9b9306ea1c..d966262e0819 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -704,7 +704,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
}
/* the hardware splits the A-MSDU */
- if (mvm->cfg->mq_rx_supported)
+ if (mvm->trans->cfg->device_family >=
+ IWL_DEVICE_FAMILY_22560)
+ trans_cfg.rx_buf_size = IWL_AMSDU_2K;
+ else if (mvm->cfg->mq_rx_supported)
trans_cfg.rx_buf_size = IWL_AMSDU_4K;
trans->wide_cmd_header = true;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 8cd0c3dac0ab..f509e55f27b1 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -858,6 +858,9 @@ static void iwl_pcie_rx_mq_hw_init(struct iwl_trans *trans)
int i;
switch (trans_pcie->rx_buf_size) {
+ case IWL_AMSDU_2K:
+ rb_size = RFH_RXF_DMA_RB_SIZE_2K;
+ break;
case IWL_AMSDU_4K:
rb_size = RFH_RXF_DMA_RB_SIZE_4K;
break;
--
2.18.0
