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Commit 75209672 authored by Alexander Bondar's avatar Alexander Bondar Committed by Emmanuel Grumbach
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iwlwifi: mvm: Add and examine TLV flag for P2P client uAPSD support 



Current firmware doesn't handle well uAPSD in P2P Client.
When it will be fixed, the firmware will set a TLV flag to notify
the driver that uAPSD is supported in P2P client mode.
Check this flag when sending power command for P2P client.

Signed-off-by: default avatarAlexander Bondar <alexander.bondar@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 128cb89e

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

+2 −0
Original line number Diff line number Diff line
@@ -94,6 +94,7 @@ 
 *	containing CAM (Continuous Active Mode) indication.

 * @IWL_UCODE_TLV_FLAGS_P2P_PS: P2P client power save is supported (only on a

 *	single bound interface).

 * @IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD: P2P client supports uAPSD power save

 */

enum iwl_ucode_tlv_flag {

	IWL_UCODE_TLV_FLAGS_PAN			= BIT(0),
@@ -117,6 +118,7 @@ enum iwl_ucode_tlv_flag { 
	IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD	= BIT(20),

	IWL_UCODE_TLV_FLAGS_P2P_PS		= BIT(21),

	IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT	= BIT(24),

	IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD	= BIT(26),

};



/* The default calibrate table size if not specified by firmware file */

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

+4 −0
Original line number Diff line number Diff line
@@ -358,6 +358,10 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, 
	if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,

		    ETH_ALEN))

		allow_uapsd = false;



	if (vif->p2p &&

	    !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))

		allow_uapsd = false;

	/*

	 * Avoid using uAPSD if P2P client is associated to GO that uses

	 * opportunistic power save. This is due to current FW limitation.