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wifi: iwlwifi: mvm: work around A-MSDU size problem

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The firmware will now start with 1500 byte A-MSDU size
rather than 3500 as before, and that seems to cause some
really hard to debug problems. Keep A-MSDU disabled if
the size is less than 2000 to disable this for now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240208185302.3dcd0a1767d0.I450d35f3085b3b04a96dd1e1e7d8c27bda9ce8f5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2024-02-08 18:58:36 +02:00
parent 0d2fc8821a
commit 07da4a1b2a
1 changed files with 8 additions and 2 deletions
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10
drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2017 Intel Deutschland GmbH
* Copyright (C) 2018-2023 Intel Corporation
* Copyright (C) 2018-2024 Intel Corporation
*/
#include "rs.h"
#include "fw-api.h"
@ -479,9 +479,15 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
}
if (flags & IWL_TLC_NOTIF_FLAG_AMSDU && !mvm_link_sta->orig_amsdu_len) {
u32 enabled = le32_to_cpu(notif->amsdu_enabled);
u16 size = le32_to_cpu(notif->amsdu_size);
int i;
if (size < 2000) {
size = 0;
enabled = 0;
}
if (link_sta->agg.max_amsdu_len < size) {
/*
* In debug link_sta->agg.max_amsdu_len < size
@ -492,7 +498,7 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
goto out;
}
mvmsta->amsdu_enabled = le32_to_cpu(notif->amsdu_enabled);
mvmsta->amsdu_enabled = enabled;
mvmsta->max_amsdu_len = size;
link_sta->agg.max_rc_amsdu_len = mvmsta->max_amsdu_len;