diff options
| author | Mordechay Goodstein <mordechay.goodstein@intel.com> | 2020-09-28 12:23:16 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2020-10-01 21:59:36 +0300 |
| commit | 507a13f5c9c9bc93813d1ef6985bdccf1e1b82e2 (patch) | |
| tree | 3e4c1164142dc911c229d4fbc3a80d2d5f3a1998 | |
| parent | 9e3c39361a309b4fb49bf1b20d47ab4d6b6c84b7 (diff) | |
| download | linux-507a13f5c9c9bc93813d1ef6985bdccf1e1b82e2.tar.bz2 | |
iwlwifi: rs: set RTS protection for all non legacy rates
This helps with congested environments reducing the conflict cost to
RTS retries only, instead of the entire BA packet.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200928121852.da97d87d7adf.If06301d4660b14e459195a15831b069b9f6c5e3c@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/rs.h | 11 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 6 |
2 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h index 4347be6491e9..73b839c3cac1 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h @@ -7,7 +7,7 @@ * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 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 @@ -29,7 +29,7 @@ * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 2018 - 2020 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -486,6 +486,13 @@ enum { #define RATE_MCS_HE_106T_POS 28 #define RATE_MCS_HE_106T_MSK (1 << RATE_MCS_HE_106T_POS) +/* Bit 30-31: (1) RTS, (2) CTS */ +#define RATE_MCS_RTS_REQUIRED_POS (30) +#define RATE_MCS_RTS_REQUIRED_MSK (0x1 << RATE_MCS_RTS_REQUIRED_POS) + +#define RATE_MCS_CTS_REQUIRED_POS (31) +#define RATE_MCS_CTS_REQUIRED_MSK (0x1 << RATE_MCS_CTS_REQUIRED_POS) + /* Link Quality definitions */ /* # entries in rate scale table to support Tx retries */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index 86b2ebb5d5fb..ed7382e7ea17 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -830,6 +830,12 @@ static u32 ucode_rate_from_rs_rate(struct iwl_mvm *mvm, return ucode_rate; } + /* set RTS protection for all non legacy rates + * This helps with congested environments reducing the conflict cost to + * RTS retries only, instead of the entire BA packet. + */ + ucode_rate |= RATE_MCS_RTS_REQUIRED_MSK; + if (is_ht(rate)) { if (index < IWL_FIRST_HT_RATE || index > IWL_LAST_HT_RATE) { IWL_ERR(mvm, "Invalid HT rate index %d\n", index); |