diff options
| author | Arik Nemtsov <arik@wizery.com> | 2011-05-02 12:42:06 +0800 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2011-05-02 12:42:06 +0800 |
| commit | 290bd79c23303c435e964bc298f60646ec730f7f (patch) | |
| tree | ddbe777197f85c469476695fc4a2adb8fe9aee16 /drivers/net/wireless/wl12xx/tx.c | |
| parent | a702a03eef3e9f5b5d940f9766633d6c68c0e2bc (diff) | |
wl12xx: AP-mode - management of links in PS-mode
Update the PS mode of each link according to a bitmap polled from
fw_status. Manually notify mac80211 about PS mode changes in connected
stations.
mac80211 will only be notified about PS start when the station is in PS
and there is a small number of TX blocks from this link ready in HW.
This is required for waking up the remote station since the TIM is
updated entirely by FW.
When a station enters mac80211-PS-mode, we drop all the skbs in the
low-level TX queues belonging to this sta with STAT_TX_FILTERED
to keep our queues clean.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/tx.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/tx.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c index ea1382bd38f..ac60d577319 100644 --- a/drivers/net/wireless/wl12xx/tx.c +++ b/drivers/net/wireless/wl12xx/tx.c @@ -86,6 +86,26 @@ static void wl1271_tx_ap_update_inconnection_sta(struct wl1271 *wl, wl1271_acx_set_inconnection_sta(wl, hdr->addr1); } +static void wl1271_tx_regulate_link(struct wl1271 *wl, u8 hlid) +{ + bool fw_ps; + u8 tx_blks; + + /* only regulate station links */ + if (hlid < WL1271_AP_STA_HLID_START) + return; + + fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map); + tx_blks = wl->links[hlid].allocated_blks; + + /* + * 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. + */ + if (fw_ps && tx_blks >= WL1271_PS_STA_MAX_BLOCKS) + wl1271_ps_link_start(wl, hlid, true); +} + u8 wl1271_tx_get_hlid(struct sk_buff *skb) { struct ieee80211_tx_info *control = IEEE80211_SKB_CB(skb); @@ -277,8 +297,10 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct sk_buff *skb, if (ret < 0) return ret; - if (wl->bss_type == BSS_TYPE_AP_BSS) + if (wl->bss_type == BSS_TYPE_AP_BSS) { wl1271_tx_ap_update_inconnection_sta(wl, skb); + wl1271_tx_regulate_link(wl, hlid); + } wl1271_tx_fill_hdr(wl, skb, extra, info, hlid); |