From 6274d9df4c43ea26592e54fc0515283b5e724602 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 29 May 2020 09:39:26 +0300 Subject: [PATCH] iwlwifi: pcie: gen3: indicate 8k/12k RB size to device Newer firmware versions will parse a few extra bits in the context info to be able to determine whether we are using bigger than 4k RBs, indicate 8k/12k to them if we actually use those (e.g. for sniffer based on the module parameter). Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20200529092401.f83f994572ca.Ibcfd66c3f9b69e68a53b3b2df8331ffb225db655@changeid --- .../wireless/intel/iwlwifi/iwl-context-info-gen3.h | 12 ++++++++++-- .../net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c | 8 ++++++++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h b/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h index ebea99189ca9f..9d7a04833cd0b 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2018 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 @@ -18,7 +18,7 @@ * * BSD LICENSE * - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018, 2020 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -93,6 +93,11 @@ enum iwl_prph_scratch_mtr_format { * @IWL_PRPH_SCRATCH_MTR_FORMAT: a mask for the size of the tfd. * There are 4 optional values: 0: 16 bit, 1: 32 bit, 2: 64 bit, * 3: 256 bit. + * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_MASK: RB size full information, ignored + * by older firmware versions, so set IWL_PRPH_SCRATCH_RB_SIZE_4K + * appropriately; use the below values for this. + * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K: 8kB RB size + * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K: 12kB RB size */ enum iwl_prph_scratch_flags { IWL_PRPH_SCRATCH_EARLY_DEBUG_EN = BIT(4), @@ -103,6 +108,9 @@ enum iwl_prph_scratch_flags { IWL_PRPH_SCRATCH_RB_SIZE_4K = BIT(16), IWL_PRPH_SCRATCH_MTR_MODE = BIT(17), IWL_PRPH_SCRATCH_MTR_FORMAT = BIT(18) | BIT(19), + IWL_PRPH_SCRATCH_RB_SIZE_EXT_MASK = 0xf << 20, + IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K = 8 << 20, + IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K = 9 << 20, }; /* diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c index b6a5921a63c36..dcd81ee1f7739 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c @@ -138,9 +138,17 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans, case IWL_AMSDU_2K: break; case IWL_AMSDU_4K: + control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K; + break; case IWL_AMSDU_8K: + control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K; + /* if firmware supports the ext size, tell it */ + control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K; + break; case IWL_AMSDU_12K: control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K; + /* if firmware supports the ext size, tell it */ + control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K; break; } -- 2.39.5