From: Alexander Bondar <alexander.bondar@xxxxxxxxx>
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: Alexander Bondar <alexander.bondar@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-fw.h | 2 ++
drivers/net/wireless/iwlwifi/mvm/power.c | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 959562d..8704e304 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -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 */
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index d173ea2..483ecc6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -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.
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
