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iwlwifi: allow to restrict Tx aggregation size per-device 

A few slave bus devices show better performance when we
reduce the size of the Tx A-MPDU.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Gregory Greenman 2014-09-02 16:04:58 +02:00 committed by Emmanuel Grumbach
parent 7f549e2c45
commit 77d96730db
2 changed files with 5 additions and 0 deletions
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2
drivers/net/wireless/iwlwifi/iwl-config.h
View File

@ -246,6 +246,7 @@ struct iwl_pwr_tx_backoff {
* @nvm_hw_section_num: the ID of the HW NVM section
* @pwr_tx_backoffs: translation table between power limits and backoffs
* @max_rx_agg_size: max RX aggregation size of the ADDBA request/response
* @max_tx_agg_size: max TX aggregation size of the ADDBA request/response
*
* We enable the driver to be backward compatible wrt. hardware features.
* API differences in uCode shouldn't be handled here but through TLVs
@ -285,6 +286,7 @@ struct iwl_cfg {
const char *default_nvm_file;
unsigned int max_rx_agg_size;
bool disable_dummy_notification;
unsigned int max_tx_agg_size;
};
/*

3
drivers/net/wireless/iwlwifi/mvm/ops.c
View File

@ -403,6 +403,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
if (cfg->max_rx_agg_size)
hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
if (cfg->max_tx_agg_size)
hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
op_mode = hw->priv;
op_mode->ops = &iwl_mvm_ops;