2009-01-06 17:13:01

by Johannes Berg

[permalink] [raw]
Subject: [PATCH] mac80211: move dynamic PS timeout to hardware config

This will be needed for drivers that set the
IEEE80211_HW_NO_STACK_DYNAMIC_PS flag and still
want to handle dynamic PS.

Signed-off-by: Johannes Berg <[email protected]>
---
include/net/mac80211.h | 13 ++++++++-----
net/mac80211/ieee80211_i.h | 1 -
net/mac80211/mlme.c | 5 +++--
net/mac80211/tx.c | 4 ++--
net/mac80211/wext.c | 14 ++++++++------
5 files changed, 21 insertions(+), 16 deletions(-)

--- wireless-testing.orig/include/net/mac80211.h 2009-01-06 18:10:07.000000000 +0100
+++ wireless-testing/include/net/mac80211.h 2009-01-06 18:11:02.000000000 +0100
@@ -521,6 +521,7 @@ struct ieee80211_ht_conf {
* @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed
* @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
* @IEEE80211_CONF_CHANGE_PS: the PS flag changed
+ * @IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT: the dynamic PS timeout changed
* @IEEE80211_CONF_CHANGE_POWER: the TX power changed
* @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
* @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
@@ -532,10 +533,11 @@ enum ieee80211_conf_changed {
IEEE80211_CONF_CHANGE_LISTEN_INTERVAL = BIT(2),
IEEE80211_CONF_CHANGE_RADIOTAP = BIT(3),
IEEE80211_CONF_CHANGE_PS = BIT(4),
- IEEE80211_CONF_CHANGE_POWER = BIT(5),
- IEEE80211_CONF_CHANGE_CHANNEL = BIT(6),
- IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(7),
- IEEE80211_CONF_CHANGE_HT = BIT(8),
+ IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT = BIT(5),
+ IEEE80211_CONF_CHANGE_POWER = BIT(6),
+ IEEE80211_CONF_CHANGE_CHANNEL = BIT(7),
+ IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(8),
+ IEEE80211_CONF_CHANGE_HT = BIT(9),
};

/**
@@ -548,6 +550,7 @@ enum ieee80211_conf_changed {
* @listen_interval: listen interval in units of beacon interval
* @flags: configuration flags defined above
* @power_level: requested transmit power (in dBm)
+ * @dynamic_ps_timeout: dynamic powersave timeout (in ms)
* @channel: the channel to tune to
* @ht: the HT configuration for the device
* @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
@@ -560,7 +563,7 @@ enum ieee80211_conf_changed {
struct ieee80211_conf {
int beacon_int;
u32 flags;
- int power_level;
+ int power_level, dynamic_ps_timeout;

u16 listen_interval;
bool radio_enabled;
--- wireless-testing.orig/net/mac80211/ieee80211_i.h 2009-01-06 18:10:07.000000000 +0100
+++ wireless-testing/net/mac80211/ieee80211_i.h 2009-01-06 18:11:02.000000000 +0100
@@ -697,7 +697,6 @@ struct ieee80211_local {
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */

bool powersave;
- int dynamic_ps_timeout;
struct work_struct dynamic_ps_enable_work;
struct work_struct dynamic_ps_disable_work;
struct timer_list dynamic_ps_timer;
--- wireless-testing.orig/net/mac80211/mlme.c 2009-01-06 18:10:07.000000000 +0100
+++ wireless-testing/net/mac80211/mlme.c 2009-01-06 18:11:02.000000000 +0100
@@ -779,9 +779,10 @@ static void ieee80211_set_associated(str

if (local->powersave &&
!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS)) {
- if (local->dynamic_ps_timeout > 0)
+ if (local->hw.conf.dynamic_ps_timeout > 0)
mod_timer(&local->dynamic_ps_timer, jiffies +
- msecs_to_jiffies(local->dynamic_ps_timeout));
+ msecs_to_jiffies(
+ local->hw.conf.dynamic_ps_timeout));
else {
ieee80211_send_nullfunc(local, sdata, 1);
conf->flags |= IEEE80211_CONF_PS;
--- wireless-testing.orig/net/mac80211/tx.c 2009-01-06 18:10:07.000000000 +0100
+++ wireless-testing/net/mac80211/tx.c 2009-01-06 18:11:02.000000000 +0100
@@ -1299,7 +1299,7 @@ int ieee80211_master_start_xmit(struct s
}

if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
- local->dynamic_ps_timeout > 0) {
+ local->hw.conf.dynamic_ps_timeout > 0) {
if (local->hw.conf.flags & IEEE80211_CONF_PS) {
ieee80211_stop_queues_by_reason(&local->hw,
IEEE80211_QUEUE_STOP_REASON_PS);
@@ -1308,7 +1308,7 @@ int ieee80211_master_start_xmit(struct s
}

mod_timer(&local->dynamic_ps_timer, jiffies +
- msecs_to_jiffies(local->dynamic_ps_timeout));
+ msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
}

memset(info, 0, sizeof(*info));
--- wireless-testing.orig/net/mac80211/wext.c 2009-01-06 18:10:23.000000000 +0100
+++ wireless-testing/net/mac80211/wext.c 2009-01-06 18:11:02.000000000 +0100
@@ -862,17 +862,19 @@ static int ieee80211_ioctl_siwpower(stru
timeout = wrq->value / 1000;

set:
- if (ps == local->powersave && timeout == local->dynamic_ps_timeout)
+ if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
return ret;

local->powersave = ps;
- local->dynamic_ps_timeout = timeout;
+ conf->dynamic_ps_timeout = timeout;

- if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
- (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) {
- if (local->dynamic_ps_timeout > 0)
+ if (local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) {
+ ret = ieee80211_hw_config(local,
+ IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
+ } else if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+ if (conf->dynamic_ps_timeout > 0)
mod_timer(&local->dynamic_ps_timer, jiffies +
- msecs_to_jiffies(local->dynamic_ps_timeout));
+ msecs_to_jiffies(conf->dynamic_ps_timeout));
else {
if (local->powersave) {
ieee80211_send_nullfunc(local, sdata, 1);




2009-01-08 05:46:36

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH] mac80211: move dynamic PS timeout to hardware config

"Johannes Berg" <[email protected]> writes:

> This will be needed for drivers that set the
> IEEE80211_HW_NO_STACK_DYNAMIC_PS flag and still
> want to handle dynamic PS.

Very good, at least iwlwifi can make use of this.

> Signed-off-by: Johannes Berg <[email protected]>

Reviewed-by: Kalle Valo <[email protected]>

--
Kalle Valo