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iwlwifi: pcie: gen3: indicate 8k/12k RB size to device

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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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200529092401.f83f994572ca.Ibcfd66c3f9b69e68a53b3b2df8331ffb225db655@changeid
This commit is contained in:
Johannes Berg 2020-05-29 09:39:26 +03:00 committed by Luca Coelho
parent f5b1cb2e61
commit 6157624055
2 changed files with 18 additions and 2 deletions
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12
drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h
View File

@ -5,7 +5,7 @@
* *
* GPL LICENSE SUMMARY * 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 * 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 * it under the terms of version 2 of the GNU General Public License as
@ -18,7 +18,7 @@
* *
* BSD LICENSE * BSD LICENSE
* *
* Copyright(c) 2018 Intel Corporation * Copyright(c) 2018, 2020 Intel Corporation
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * 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. * @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, * There are 4 optional values: 0: 16 bit, 1: 32 bit, 2: 64 bit,
* 3: 256 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 { enum iwl_prph_scratch_flags {
IWL_PRPH_SCRATCH_EARLY_DEBUG_EN = BIT(4), 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_RB_SIZE_4K = BIT(16),
IWL_PRPH_SCRATCH_MTR_MODE = BIT(17), IWL_PRPH_SCRATCH_MTR_MODE = BIT(17),
IWL_PRPH_SCRATCH_MTR_FORMAT = BIT(18) | BIT(19), 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,
}; };
/* /*

8
drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
View File

@ -138,9 +138,17 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
case IWL_AMSDU_2K: case IWL_AMSDU_2K:
break; break;
case IWL_AMSDU_4K: case IWL_AMSDU_4K:
control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K;
break;
case IWL_AMSDU_8K: 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: case IWL_AMSDU_12K:
control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K; 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; break;
} }