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iwlwifi: sta: set max HE max A-MPDU according to HE capa

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Currently, our max tpt is limited to max HT A-MPDU for LB,
and max VHT A-MPDU for HB. Configure HE exponent value correctly to
achieve HE max A-MPDU, both on LB and HB.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20201107104557.4486852ebb56.I9eb0d028e31f183597fb90120e7d4ca87e0dd6cb@changeid
This commit is contained in:
Mordechay Goodstein 2020-11-07 10:50:06 +02:00 • committed by Kalle Valo
parent d85b4b2bf2
commit c8a2e7a297
2 changed files with 23 additions and 5 deletions
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10
drivers/net/wireless/intel/iwlwifi/fw/api/sta.h
View file

@ -5,10 +5,9 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2019 Intel Corporation
* Copyright(c) 2012-2014, 2018 - 2020 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
@ -28,10 +27,9 @@
*
* BSD LICENSE
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2019 Intel Corporation
* Copyright(c) 2012-2014, 2018 - 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -128,7 +126,9 @@ enum iwl_sta_flags {
STA_FLG_MAX_AGG_SIZE_256K = (5 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_512K = (6 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_1024K = (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_MSK = (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_2M = (8 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_4M = (9 << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_MAX_AGG_SIZE_MSK = (0xf << STA_FLG_MAX_AGG_SIZE_SHIFT),
STA_FLG_AGG_MPDU_DENS_SHIFT = 23,
STA_FLG_AGG_MPDU_DENS_2US = (4 << STA_FLG_AGG_MPDU_DENS_SHIFT),

18
drivers/net/wireless/intel/iwlwifi/mvm/sta.c
View file

@ -196,6 +196,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
mpdu_dens = sta->ht_cap.ampdu_density;
}
if (sta->vht_cap.vht_supported) {
agg_size = sta->vht_cap.cap &
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
@ -205,6 +206,23 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
agg_size = sta->ht_cap.ampdu_factor;
}
/* D6.0 10.12.2 A-MPDU length limit rules
* A STA indicates the maximum length of the A-MPDU preEOF padding
* that it can receive in an HE PPDU in the Maximum A-MPDU Length
* Exponent field in its HT Capabilities, VHT Capabilities,
* and HE 6 GHz Band Capabilities elements (if present) and the
* Maximum AMPDU Length Exponent Extension field in its HE
* Capabilities element
*/
if (sta->he_cap.has_he)
agg_size += u8_get_bits(sta->he_cap.he_cap_elem.mac_cap_info[3],
IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK);
/* Limit to max A-MPDU supported by FW */
if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT))
agg_size = (STA_FLG_MAX_AGG_SIZE_4M >>
STA_FLG_MAX_AGG_SIZE_SHIFT);
add_sta_cmd.station_flags |=
cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT);
add_sta_cmd.station_flags |=