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iwlwifi: add support for 12K Receive Buffers

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802.11ac allows A-MSDU that can be up to 12KB long. Since
an entire A-MSDU needs to fit into one single Receive
Buffer (RB), add support for big RBs.
Since this adds lots of pressure to the memory manager and
significantly increase the true_size of the RX buffers,
don't enable this by default.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach
2015-11-10 11:57:41 +02:00
parent 7d1620451d
commit 6c4fbcbc1c
10 changed files with 90 additions and 21 deletions
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10
drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
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@@ -86,6 +86,12 @@ enum iwl_disable_11n {
IWL_ENABLE_HT_TXAGG = BIT(3),
};
enum iwl_amsdu_size {
IWL_AMSDU_4K = 0,
IWL_AMSDU_8K = 1,
IWL_AMSDU_12K = 2,
};
/**
* struct iwl_mod_params
*
@@ -94,7 +100,7 @@ enum iwl_disable_11n {
* @sw_crypto: using hardware encryption, default = 0
* @disable_11n: disable 11n capabilities, default = 0,
* use IWL_[DIS,EN]ABLE_HT_* constants
* @amsdu_size_8K: enable 8K amsdu size, default = 0
* @amsdu_size: enable 8K amsdu size, default = 4K. enum iwl_amsdu_size.
* @restart_fw: restart firmware, default = 1
* @bt_coex_active: enable bt coex, default = true
* @led_mode: system default, default = 0
@@ -109,7 +115,7 @@ enum iwl_disable_11n {
struct iwl_mod_params {
int sw_crypto;
unsigned int disable_11n;
int amsdu_size_8K;
int amsdu_size;
bool restart_fw;
bool bt_coex_active;
int led_mode;