From: Avri Altman <[email protected]> When building a Tx Command for management frames, we are lacking a check for action frames, for which we should set a different pm_timeout. This cause the fw to stay awake for 100TU after each such frame is transmitted, resulting an excessive power consumption.
Signed-off-by: Avri Altman <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> --- drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h | 12 ++++++++++++ drivers/net/wireless/iwlwifi/mvm/tx.c | 10 ++++++---- 2 files changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h index 81c4ea3..853698a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h @@ -124,6 +124,18 @@ enum iwl_tx_flags { TX_CMD_FLG_HCCA_CHUNK = BIT(31) }; /* TX_FLAGS_BITS_API_S_VER_1 */ +/** + * enum iwl_tx_pm_timeouts - pm timeout values in TX command + * @PM_FRAME_NONE: no need to suspend sleep mode + * @PM_FRAME_MGMT: fw suspend sleep mode for 100TU + * @PM_FRAME_ASSOC: fw suspend sleep mode for 10sec + */ +enum iwl_tx_pm_timeouts { + PM_FRAME_NONE = 0, + PM_FRAME_MGMT = 2, + PM_FRAME_ASSOC = 3, +}; + /* * TX command security control */ diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index 15bf36a..6df5aad 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/iwlwifi/mvm/tx.c @@ -153,18 +153,20 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, if (ieee80211_is_mgmt(fc)) { if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) - tx_cmd->pm_frame_timeout = cpu_to_le16(3); + tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_ASSOC); + else if (ieee80211_is_action(fc)) + tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE); else - tx_cmd->pm_frame_timeout = cpu_to_le16(2); + tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT); /* The spec allows Action frames in A-MPDU, we don't support * it */ WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU); } else if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) { - tx_cmd->pm_frame_timeout = cpu_to_le16(2); + tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT); } else { - tx_cmd->pm_frame_timeout = 0; + tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE); } if (ieee80211_is_data(fc) && len > mvm->rts_threshold && -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
