From bb16ffd561b60638108f1cc97b08f18270468678 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 4 Mar 2022 13:21:25 +0200 Subject: [PATCH] iwlwifi: use 4k queue size for Bz A-step There's a hardware bug in Bz A-step that can be worked around by using 4k queue size, so do that. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220304131517.10ea0e115d05.Idfb3706133bf3b15f1f68f1145e77e89947449d1@changeid Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/queue/tx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c index 42e631cc16e81..726185d6fab8b 100644 --- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c @@ -1199,6 +1199,10 @@ int iwl_txq_dyn_alloc(struct iwl_trans *trans, u32 flags, u32 sta_mask, }; int ret; + if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_BZ && + trans->hw_rev_step == SILICON_A_STEP) + size = 4096; + txq = iwl_txq_dyn_alloc_dma(trans, size, timeout); if (IS_ERR(txq)) return PTR_ERR(txq);