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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 00:29:25 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 00:29:25 +0100
commit7a6362800cb7d1d618a697a650c7aaed3eb39320 (patch)
tree087f9bc6c13ef1fad4b392c5cf9325cd28fa8523 /drivers/net/wireless/wl12xx/ps.c
parentMerge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
parentbonding: enable netpoll without checking link status (diff)
downloadlinux-7a6362800cb7d1d618a697a650c7aaed3eb39320.tar.xz
linux-7a6362800cb7d1d618a697a650c7aaed3eb39320.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits) bonding: enable netpoll without checking link status xfrm: Refcount destination entry on xfrm_lookup net: introduce rx_handler results and logic around that bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag bonding: wrap slave state work net: get rid of multiple bond-related netdevice->priv_flags bonding: register slave pointer for rx_handler be2net: Bump up the version number be2net: Copyright notice change. Update to Emulex instead of ServerEngines e1000e: fix kconfig for crc32 dependency netfilter ebtables: fix xt_AUDIT to work with ebtables xen network backend driver bonding: Improve syslog message at device creation time bonding: Call netif_carrier_off after register_netdevice bonding: Incorrect TX queue offset net_sched: fix ip_tos2prio xfrm: fix __xfrm_route_forward() be2net: Fix UDP packet detected status in RX compl Phonet: fix aligned-mode pipe socket buffer header reserve netxen: support for GbE port settings ... Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c with the staging updates.
Diffstat (limited to 'drivers/net/wireless/wl12xx/ps.c')
-rw-r--r--drivers/net/wireless/wl12xx/ps.c90
1 files changed, 83 insertions, 7 deletions
diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c
index 60a3738eadb0..971f13e792da 100644
--- a/drivers/net/wireless/wl12xx/ps.c
+++ b/drivers/net/wireless/wl12xx/ps.c
@@ -24,6 +24,7 @@
#include "reg.h"
#include "ps.h"
#include "io.h"
+#include "tx.h"
#define WL1271_WAKEUP_TIMEOUT 500
@@ -68,7 +69,7 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
}
}
-int wl1271_ps_elp_wakeup(struct wl1271 *wl, bool chip_awake)
+int wl1271_ps_elp_wakeup(struct wl1271 *wl)
{
DECLARE_COMPLETION_ONSTACK(compl);
unsigned long flags;
@@ -86,7 +87,7 @@ int wl1271_ps_elp_wakeup(struct wl1271 *wl, bool chip_awake)
* the completion variable in one entity.
*/
spin_lock_irqsave(&wl->wl_lock, flags);
- if (work_pending(&wl->irq_work) || chip_awake)
+ if (test_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags))
pending = true;
else
wl->elp_compl = &compl;
@@ -139,8 +140,7 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode,
return ret;
}
- ret = wl1271_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE,
- rates, send);
+ ret = wl1271_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE);
if (ret < 0)
return ret;
@@ -149,7 +149,7 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode,
case STATION_ACTIVE_MODE:
default:
wl1271_debug(DEBUG_PSM, "leaving psm");
- ret = wl1271_ps_elp_wakeup(wl, false);
+ ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
return ret;
@@ -163,8 +163,7 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode,
if (ret < 0)
return ret;
- ret = wl1271_cmd_ps_mode(wl, STATION_ACTIVE_MODE,
- rates, send);
+ ret = wl1271_cmd_ps_mode(wl, STATION_ACTIVE_MODE);
if (ret < 0)
return ret;
@@ -175,4 +174,81 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode,
return ret;
}
+static void wl1271_ps_filter_frames(struct wl1271 *wl, u8 hlid)
+{
+ int i, filtered = 0;
+ struct sk_buff *skb;
+ struct ieee80211_tx_info *info;
+ unsigned long flags;
+
+ /* filter all frames currently the low level queus for this hlid */
+ for (i = 0; i < NUM_TX_QUEUES; i++) {
+ while ((skb = skb_dequeue(&wl->links[hlid].tx_queue[i]))) {
+ info = IEEE80211_SKB_CB(skb);
+ info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
+ info->status.rates[0].idx = -1;
+ ieee80211_tx_status(wl->hw, skb);
+ filtered++;
+ }
+ }
+
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ wl->tx_queue_count -= filtered;
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+
+ wl1271_handle_tx_low_watermark(wl);
+}
+
+void wl1271_ps_link_start(struct wl1271 *wl, u8 hlid, bool clean_queues)
+{
+ struct ieee80211_sta *sta;
+
+ if (test_bit(hlid, &wl->ap_ps_map))
+ return;
+
+ wl1271_debug(DEBUG_PSM, "start mac80211 PSM on hlid %d blks %d "
+ "clean_queues %d", hlid, wl->links[hlid].allocated_blks,
+ clean_queues);
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(wl->vif, wl->links[hlid].addr);
+ if (!sta) {
+ wl1271_error("could not find sta %pM for starting ps",
+ wl->links[hlid].addr);
+ rcu_read_unlock();
+ return;
+ }
+ ieee80211_sta_ps_transition_ni(sta, true);
+ rcu_read_unlock();
+
+ /* do we want to filter all frames from this link's queues? */
+ if (clean_queues)
+ wl1271_ps_filter_frames(wl, hlid);
+
+ __set_bit(hlid, &wl->ap_ps_map);
+}
+
+void wl1271_ps_link_end(struct wl1271 *wl, u8 hlid)
+{
+ struct ieee80211_sta *sta;
+
+ if (!test_bit(hlid, &wl->ap_ps_map))
+ return;
+
+ wl1271_debug(DEBUG_PSM, "end mac80211 PSM on hlid %d", hlid);
+
+ __clear_bit(hlid, &wl->ap_ps_map);
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(wl->vif, wl->links[hlid].addr);
+ if (!sta) {
+ wl1271_error("could not find sta %pM for ending ps",
+ wl->links[hlid].addr);
+ goto end;
+ }
+
+ ieee80211_sta_ps_transition_ni(sta, false);
+end:
+ rcu_read_unlock();
+}