static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_pkts)
{
- bool fw_ps;
+ bool fw_ps, single_sta;
/* only regulate station links */
if (hlid < WL1271_AP_STA_HLID_START)
return;
fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
+ single_sta = (wl->active_sta_count == 1);
/*
* Wake up from high level PS if the STA is asleep with too little
if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
wl1271_ps_link_end(wl, hlid);
- /* Start high-level PS if the STA is asleep with enough blocks in FW */
- else if (fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
+ /*
+ * Start high-level PS if the STA is asleep with enough blocks in FW.
+ * Make an exception if this is the only connected station. In this
+ * case FW-memory congestion is not a problem.
+ */
+ else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
wl1271_ps_link_start(wl, hlid, true);
}
memset(wl->roles_map, 0, sizeof(wl->roles_map));
memset(wl->links_map, 0, sizeof(wl->links_map));
memset(wl->roc_map, 0, sizeof(wl->roc_map));
+ wl->active_sta_count = 0;
/* The system link is always allocated */
__set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
wl_sta->hlid = WL1271_AP_STA_HLID_START + id;
*hlid = wl_sta->hlid;
memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
+ wl->active_sta_count++;
return 0;
}
wl1271_tx_reset_link_queues(wl, hlid);
__clear_bit(hlid, &wl->ap_ps_map);
__clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
+ wl->active_sta_count--;
}
static int wl1271_op_sta_add(struct ieee80211_hw *hw,
wl->session_counter = 0;
wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
+ wl->active_sta_count = 0;
setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
(unsigned long) wl);
wl->fwlog_size = 0;
static void wl1271_tx_regulate_link(struct wl1271 *wl, u8 hlid)
{
- bool fw_ps;
+ bool fw_ps, single_sta;
u8 tx_pkts;
/* only regulate station links */
fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
tx_pkts = wl->links[hlid].allocated_pkts;
+ single_sta = (wl->active_sta_count == 1);
/*
* if in FW PS and there is enough data in FW we can put the link
* into high-level PS and clean out its TX queues.
+ * Make an exception if this is the only connected station. In this
+ * case FW-memory congestion is not a problem.
*/
- if (fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
+ if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
wl1271_ps_link_start(wl, hlid, true);
}