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Commit 77d96730 authored by Gregory Greenman's avatar Gregory Greenman Committed by Emmanuel Grumbach
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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: default avatarGregory Greenman <gregory.greenman@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 7f549e2c

drivers/net/wireless/iwlwifi/iwl-config.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

};



/*

drivers/net/wireless/iwlwifi/mvm/ops.c

+3 −0
Original line number Diff line number Diff line
@@ -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;