diff options
| -rw-r--r-- | include/net/mac80211.h | 9 | ||||
| -rw-r--r-- | net/mac80211/rx.c | 10 | ||||
| -rw-r--r-- | net/mac80211/sta_info.c | 22 | ||||
| -rw-r--r-- | net/mac80211/sta_info.h | 2 |
4 files changed, 26 insertions, 17 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index dd07964ef154..ee6449eff7dc 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -370,7 +370,8 @@ struct ieee80211_bss_conf { * @IEEE80211_TX_STATUS_EOSP: This packet marks the end of service period, * when its status is reported the service period ends. For frames in * an SP that mac80211 transmits, it is already set; for driver frames - * the driver may set this flag. + * the driver may set this flag. It is also used to do the same for + * PS-Poll responses. * * Note: If you have to add new flags to the enumeration, then don't * forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary. @@ -1959,6 +1960,12 @@ enum ieee80211_frame_release_type { * more-data bit must always be set. * The @tids parameter tells the driver which TIDs to release frames * from, for PS-poll it will always have only a single bit set. + * In the case this is used for a PS-poll initiated release, the + * @num_frames parameter will always be 1 so code can be shared. In + * this case the driver must also set %IEEE80211_TX_STATUS_EOSP flag + * on the TX status (and must report TX status) so that the PS-poll + * period is properly ended. This is used to avoid sending multiple + * responses for a retried PS-poll frame. * In the case this is used for uAPSD, the @num_frames parameter may be * bigger than one, but the driver may send fewer frames (it must send * at least one, however). In this case it is also responsible for diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 9a703f00b5fb..32c8ee43f720 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1194,10 +1194,12 @@ ieee80211_rx_h_uapsd_and_pspoll(struct ieee80211_rx_data *rx) return RX_CONTINUE; if (unlikely(ieee80211_is_pspoll(hdr->frame_control))) { - if (!test_sta_flags(rx->sta, WLAN_STA_PS_DRIVER)) - ieee80211_sta_ps_deliver_poll_response(rx->sta); - else - set_sta_flags(rx->sta, WLAN_STA_PSPOLL); + if (!test_sta_flags(rx->sta, WLAN_STA_SP)) { + if (!test_sta_flags(rx->sta, WLAN_STA_PS_DRIVER)) + ieee80211_sta_ps_deliver_poll_response(rx->sta); + else + set_sta_flags(rx->sta, WLAN_STA_PSPOLL); + } /* Free PS Poll skb here instead of returning RX_DROP that would * count as an dropped frame. */ diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index d9cb56f548a9..5732e4d0cc21 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1217,13 +1217,12 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, /* * Tell TX path to send this frame even though the * STA may still remain is PS mode after this frame - * exchange. + * exchange. Also set EOSP to indicate this packet + * ends the poll/service period. */ - info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE; - - if (uapsd) - info->flags |= IEEE80211_TX_STATUS_EOSP | - IEEE80211_TX_CTL_REQ_TX_STATUS; + info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE | + IEEE80211_TX_STATUS_EOSP | + IEEE80211_TX_CTL_REQ_TX_STATUS; ieee80211_xmit(sdata, skb); } @@ -1241,6 +1240,9 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, unsigned long driver_release_tids = 0; struct sk_buff_head frames; + /* Service or PS-Poll period starts */ + set_sta_flags(sta, WLAN_STA_SP); + __skb_queue_head_init(&frames); /* @@ -1357,10 +1359,11 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, /* set EOSP for the frame */ u8 *p = ieee80211_get_qos_ctl(hdr); *p |= IEEE80211_QOS_CTL_EOSP; - info->flags |= IEEE80211_TX_STATUS_EOSP | - IEEE80211_TX_CTL_REQ_TX_STATUS; } + info->flags |= IEEE80211_TX_STATUS_EOSP | + IEEE80211_TX_CTL_REQ_TX_STATUS; + __skb_queue_tail(&pending, skb); } @@ -1422,9 +1425,6 @@ void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta) if (!delivery_enabled) return; - /* Ohh, finally, the service period starts :-) */ - set_sta_flags(sta, WLAN_STA_SP); - switch (sta->sta.max_sp) { case 1: n_frames = 2; diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 751ad25f925f..348847a32630 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -50,7 +50,7 @@ * keeping station in power-save mode, reply when the driver * unblocks the station. * @WLAN_STA_SP: Station is in a service period, so don't try to - * reply to other uAPSD trigger frames. + * reply to other uAPSD trigger frames or PS-Poll. */ enum ieee80211_sta_info_flags { WLAN_STA_AUTH = 1<<0, |