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mac80211: initialise queue QoS parameters at hw start 

When hardware is started it might be in a confused state with
respect to queue QoS parameters. This patch changes mac80211
to set sane defaults right after the hardware is brought up.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-09-09 12:56:01 +02:00 committed by John W. Linville
parent 3110bef78c
commit 5825fe100d
4 changed files with 35 additions and 27 deletions
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1
net/mac80211/ieee80211_i.h
View File

@ -987,6 +987,7 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
int rate, int erp, int short_preamble);
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr);
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
#ifdef CONFIG_MAC80211_NOINLINE
#define debug_noinline noinline

9
net/mac80211/main.c
View File

@ -399,8 +399,15 @@ static int ieee80211_open(struct net_device *dev)
atomic_inc(&local->iff_promiscs);
local->open_count++;
if (need_hw_reconfig)
if (need_hw_reconfig) {
ieee80211_hw_config(local);
/*
* set default queue parameters so drivers don't
* need to initialise the hardware if the hardware
* doesn't start up with sane defaults
*/
ieee80211_set_wmm_default(sdata);
}
/*
* ieee80211_sta_work is disabled while network interface

26
net/mac80211/mlme.c
View File

@ -539,32 +539,6 @@ static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_da
}
/* MLME */
static void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_queue_params qparam;
int i;
if (!local->ops->conf_tx)
return;
memset(&qparam, 0, sizeof(qparam));
qparam.aifs = 2;
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
!(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
qparam.cw_min = 31;
else
qparam.cw_min = 15;
qparam.cw_max = 1023;
qparam.txop = 0;
for (i = 0; i < local_to_hw(local)->queues; i++)
local->ops->conf_tx(local_to_hw(local), i, &qparam);
}
static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_bss *bss)
{

26
net/mac80211/util.c
View File

@ -572,3 +572,29 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
pos += elen;
}
}
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_queue_params qparam;
int i;
if (!local->ops->conf_tx)
return;
memset(&qparam, 0, sizeof(qparam));
qparam.aifs = 2;
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
!(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
qparam.cw_min = 31;
else
qparam.cw_min = 15;
qparam.cw_max = 1023;
qparam.txop = 0;
for (i = 0; i < local_to_hw(local)->queues; i++)
local->ops->conf_tx(local_to_hw(local), i, &qparam);
}