iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rtlwifi: use work for lps

Browse Source 
Leaving leisure power save mode can take some time, so it's better to
perform that action in process context with interrupts enabled. This
patch changes lps_leave tasklet to work.

Reported-by: Philipp Dreimann <philipp@dreimann.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Mike McCormack <mikem@ring3k.org>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2011-12-12 12:43:23 +01:00 committed by John W. Linville
parent 49d55cef5b
commit 41affd5286
2 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/net/wireless/rtlwifi/pci.c
View File

@ -610,7 +610,7 @@ tx_status_ok:
if (((rtlpriv->link_info.num_rx_inperiod + if (((rtlpriv->link_info.num_rx_inperiod +
rtlpriv->link_info.num_tx_inperiod) > 8) || rtlpriv->link_info.num_tx_inperiod) > 8) ||
(rtlpriv->link_info.num_rx_inperiod > 2)) { (rtlpriv->link_info.num_rx_inperiod > 2)) {
tasklet_schedule(&rtlpriv->works.ips_leave_tasklet); schedule_work(&rtlpriv->works.lps_leave_work);
} }
} }
@ -736,7 +736,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
if (((rtlpriv->link_info.num_rx_inperiod + if (((rtlpriv->link_info.num_rx_inperiod +
rtlpriv->link_info.num_tx_inperiod) > 8) || rtlpriv->link_info.num_tx_inperiod) > 8) ||
(rtlpriv->link_info.num_rx_inperiod > 2)) { (rtlpriv->link_info.num_rx_inperiod > 2)) {
tasklet_schedule(&rtlpriv->works.ips_leave_tasklet); schedule_work(&rtlpriv->works.lps_leave_work);
} }
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
@ -903,11 +903,6 @@ static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
_rtl_pci_tx_chk_waitq(hw); _rtl_pci_tx_chk_waitq(hw);
} }
static void _rtl_pci_ips_leave_tasklet(struct ieee80211_hw *hw)
{
rtl_lps_leave(hw);
}
static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
{ {
struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_priv *rtlpriv = rtl_priv(hw);
@ -945,6 +940,15 @@ static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
return; return;
} }
static void rtl_lps_leave_work_callback(struct work_struct *work)
{
struct rtl_works *rtlworks =
container_of(work, struct rtl_works, lps_leave_work);
struct ieee80211_hw *hw = rtlworks->hw;
rtl_lps_leave(hw);
}
static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw) static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
{ {
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
@ -1006,9 +1010,7 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
(void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet, (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
(unsigned long)hw); (unsigned long)hw);
tasklet_init(&rtlpriv->works.ips_leave_tasklet, INIT_WORK(&rtlpriv->works.lps_leave_work, rtl_lps_leave_work_callback);
(void (*)(unsigned long))_rtl_pci_ips_leave_tasklet,
(unsigned long)hw);
} }
static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw, static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
@ -1478,7 +1480,7 @@ static void rtl_pci_deinit(struct ieee80211_hw *hw)
synchronize_irq(rtlpci->pdev->irq); synchronize_irq(rtlpci->pdev->irq);
tasklet_kill(&rtlpriv->works.irq_tasklet); tasklet_kill(&rtlpriv->works.irq_tasklet);
tasklet_kill(&rtlpriv->works.ips_leave_tasklet); cancel_work_sync(&rtlpriv->works.lps_leave_work);
flush_workqueue(rtlpriv->works.rtl_wq); flush_workqueue(rtlpriv->works.rtl_wq);
destroy_workqueue(rtlpriv->works.rtl_wq); destroy_workqueue(rtlpriv->works.rtl_wq);
@ -1553,7 +1555,7 @@ static void rtl_pci_stop(struct ieee80211_hw *hw)
set_hal_stop(rtlhal); set_hal_stop(rtlhal);
rtlpriv->cfg->ops->disable_interrupt(hw); rtlpriv->cfg->ops->disable_interrupt(hw);
tasklet_kill(&rtlpriv->works.ips_leave_tasklet); cancel_work_sync(&rtlpriv->works.lps_leave_work);
spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
while (ppsc->rfchange_inprogress) { while (ppsc->rfchange_inprogress) {

3
drivers/net/wireless/rtlwifi/wifi.h
View File

@ -1576,7 +1576,8 @@ struct rtl_works {
/* For SW LPS */ /* For SW LPS */
struct delayed_work ps_work; struct delayed_work ps_work;
struct delayed_work ps_rfon_wq; struct delayed_work ps_rfon_wq;
struct tasklet_struct ips_leave_tasklet;
struct work_struct lps_leave_work;
}; };
struct rtl_debug { struct rtl_debug {