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synced 2024-08-23 01:10:04 +00:00
ath9k: Updated Beacon generation to use mac80211-style
This change moves ath9k to use mac80211-generated Beacon frames instead of trying to allocate a single Beacon frame and then update it. In addition, the remaining ath_skb_{map,unmap}_single() wrapper calls are replaced with direct pci_{map,unmap}_single() calls in beacon.c. Power save buffering for multicast/broadcast frames is not yet converted to use mac80211-style (frames to be buffered inside mac80211, not in driver). Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
parent
2ad67de3c8
commit
a8fff50e4d
3 changed files with 48 additions and 50 deletions
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@ -172,6 +172,7 @@ static void empty_mcastq_into_cabq(struct ath_hal *ah,
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mcastq->axq_link = NULL;
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}
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/* TODO: use ieee80211_get_buffered_bc() to fetch power saved mcast frames */
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/* This is only run at DTIM. We move everything from the vap's mcast queue
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* to the hardware cab queue. Caller must hold the mcastq lock. */
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static void trigger_mcastq(struct ath_hal *ah,
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@ -206,7 +207,6 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
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int cabq_depth;
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int mcastq_depth;
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int is_beacon_dtim = 0;
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unsigned int curlen;
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struct ath_txq *cabq;
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struct ath_txq *mcastq;
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avp = sc->sc_vaps[if_id];
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@ -223,33 +223,27 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
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}
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bf = avp->av_bcbuf;
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skb = (struct sk_buff *) bf->bf_mpdu;
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if (skb) {
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pci_unmap_single(sc->pdev, bf->bf_dmacontext,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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}
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/*
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* Update dynamic beacon contents. If this returns
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* non-zero then we need to remap the memory because
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* the beacon frame changed size (probably because
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* of the TIM bitmap).
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*/
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curlen = skb->len;
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skb = ieee80211_beacon_get(sc->hw, avp->av_if_data);
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bf->bf_mpdu = skb;
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if (skb == NULL)
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return NULL;
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bf->bf_buf_addr = bf->bf_dmacontext =
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pci_map_single(sc->pdev, skb->data,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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/* TODO: convert to use ieee80211_get_buffered_bc() */
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/* XXX: spin_lock_bh should not be used here, but sparse bitches
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* otherwise. We should fix sparse :) */
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spin_lock_bh(&mcastq->axq_lock);
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mcastq_depth = avp->av_mcastq.axq_depth;
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if (ath_update_beacon(sc, if_id, &avp->av_boff, skb, mcastq_depth) ==
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1) {
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ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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bf->bf_buf_addr = ath_skb_map_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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} else {
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pci_dma_sync_single_for_cpu(sc->pdev,
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bf->bf_buf_addr,
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skb_tailroom(skb),
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PCI_DMA_TODEVICE);
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}
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/*
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* if the CABQ traffic from previous DTIM is pending and the current
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* beacon is also a DTIM.
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@ -262,7 +256,8 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
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cabq_depth = cabq->axq_depth;
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spin_unlock_bh(&cabq->axq_lock);
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is_beacon_dtim = avp->av_boff.bo_tim[4] & 1;
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if (avp->av_boff.bo_tim)
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is_beacon_dtim = avp->av_boff.bo_tim[4] & 1;
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if (mcastq_depth && is_beacon_dtim && cabq_depth) {
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/*
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@ -408,8 +403,9 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
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bf = avp->av_bcbuf;
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if (bf->bf_mpdu != NULL) {
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skb = (struct sk_buff *)bf->bf_mpdu;
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ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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pci_unmap_single(sc->pdev, bf->bf_dmacontext,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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dev_kfree_skb_any(skb);
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bf->bf_mpdu = NULL;
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}
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@ -439,9 +435,8 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
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__le64 val;
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int intval;
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/* FIXME: Use default value for now: Sujith */
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intval = ATH_DEFAULT_BINTVAL;
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intval = sc->hw->conf.beacon_int ?
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sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
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/*
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* The beacon interval is in TU's; the TSF in usecs.
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@ -466,8 +461,10 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
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memcpy(&wh[1], &val, sizeof(val));
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}
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bf->bf_buf_addr = ath_skb_map_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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bf->bf_buf_addr = bf->bf_dmacontext =
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pci_map_single(sc->pdev, skb->data,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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bf->bf_mpdu = skb;
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return 0;
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@ -493,8 +490,9 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
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bf = avp->av_bcbuf;
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if (bf->bf_mpdu != NULL) {
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struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
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ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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pci_unmap_single(sc->pdev, bf->bf_dmacontext,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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dev_kfree_skb_any(skb);
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bf->bf_mpdu = NULL;
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}
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@ -520,8 +518,9 @@ void ath_beacon_free(struct ath_softc *sc)
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list_for_each_entry(bf, &sc->sc_bbuf, list) {
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if (bf->bf_mpdu != NULL) {
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struct sk_buff *skb = (struct sk_buff *) bf->bf_mpdu;
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ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
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get_dma_mem_context(bf, bf_dmacontext));
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pci_unmap_single(sc->pdev, bf->bf_dmacontext,
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skb_end_pointer(skb) - skb->head,
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PCI_DMA_TODEVICE);
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dev_kfree_skb_any(skb);
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bf->bf_mpdu = NULL;
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}
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@ -643,8 +642,8 @@ void ath9k_beacon_tasklet(unsigned long data)
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* on the tsf to safeguard against missing an swba.
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*/
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/* FIXME: Use default value for now - Sujith */
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intval = ATH_DEFAULT_BINTVAL;
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intval = sc->hw->conf.beacon_int ?
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sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
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tsf = ath9k_hw_gettsf64(ah);
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tsftu = TSF_TO_TU(tsf>>32, tsf);
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@ -760,7 +759,8 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
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* Protocol stack doesn't support dynamic beacon configuration,
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* use default configurations.
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*/
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conf.beacon_interval = ATH_DEFAULT_BINTVAL;
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conf.beacon_interval = sc->hw->conf.beacon_int ?
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sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
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conf.listen_interval = 1;
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conf.dtim_period = conf.beacon_interval;
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conf.dtim_count = 1;
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@ -729,11 +729,6 @@ void ath_beacon_sync(struct ath_softc *sc, int if_id);
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void ath_get_beaconconfig(struct ath_softc *sc,
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int if_id,
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struct ath_beacon_config *conf);
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int ath_update_beacon(struct ath_softc *sc,
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int if_id,
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struct ath_beacon_offset *bo,
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struct sk_buff *skb,
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int mcast);
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/********/
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/* VAPs */
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/********/
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@ -624,6 +624,18 @@ static int ath9k_config_interface(struct ieee80211_hw *hw,
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ath_beacon_sync(sc, 0);
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}
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if ((conf->changed & IEEE80211_IFCC_BEACON) &&
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(vif->type == IEEE80211_IF_TYPE_AP)) {
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ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_bhalq);
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error = ath_beacon_alloc(sc, 0);
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if (error != 0)
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return error;
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ath_beacon_config(sc, 0);
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sc->sc_flags |= SC_OP_BEACONS;
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}
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/* Check for WLAN_CAPABILITY_PRIVACY ? */
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if ((avp->av_opmode != IEEE80211_IF_TYPE_STA)) {
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for (i = 0; i < IEEE80211_WEP_NKID; i++)
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@ -1052,15 +1064,6 @@ void ath_get_beaconconfig(struct ath_softc *sc,
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conf->bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf->listen_interval;
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}
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int ath_update_beacon(struct ath_softc *sc,
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int if_id,
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struct ath_beacon_offset *bo,
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struct sk_buff *skb,
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int mcast)
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{
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return 0;
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}
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void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
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struct ath_xmit_status *tx_status, struct ath_node *an)
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{
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