* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
- /* Implementation of beacon processing. */
-
-#include <asm/unaligned.h>
-#include "core.h"
+#include "ath9k.h"
/*
- * Configure parameters for the beacon queue
- *
* This function will modify certain transmit queue properties depending on
* the operating mode of the station (AP or AdHoc). Parameters are AIFS
* settings and channel width min/max
*/
-
static int ath_beaconq_config(struct ath_softc *sc)
{
- struct ath_hal *ah = sc->sc_ah;
+ struct ath_hw *ah = sc->sc_ah;
struct ath9k_tx_queue_info qi;
- ath9k_hw_get_txq_props(ah, sc->sc_bhalq, &qi);
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
/* Always burst out beacon and CAB traffic. */
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
qi.tqi_cwmax = 0;
} else {
/* Adhoc mode; important thing is to use 2x cwmin. */
- qi.tqi_aifs = sc->sc_beacon_qi.tqi_aifs;
- qi.tqi_cwmin = 2*sc->sc_beacon_qi.tqi_cwmin;
- qi.tqi_cwmax = sc->sc_beacon_qi.tqi_cwmax;
+ qi.tqi_aifs = sc->beacon.beacon_qi.tqi_aifs;
+ qi.tqi_cwmin = 2*sc->beacon.beacon_qi.tqi_cwmin;
+ qi.tqi_cwmax = sc->beacon.beacon_qi.tqi_cwmax;
}
- if (!ath9k_hw_set_txq_props(ah, sc->sc_bhalq, &qi)) {
+ if (!ath9k_hw_set_txq_props(ah, sc->beacon.beaconq, &qi)) {
DPRINTF(sc, ATH_DBG_FATAL,
- "%s: unable to update h/w beacon queue parameters\n",
- __func__);
+ "unable to update h/w beacon queue parameters\n");
return 0;
} else {
- ath9k_hw_resettxqueue(ah, sc->sc_bhalq); /* push to h/w */
+ ath9k_hw_resettxqueue(ah, sc->beacon.beaconq); /* push to h/w */
return 1;
}
}
+static void ath_bstuck_process(struct ath_softc *sc)
+{
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "stuck beacon; resetting (bmiss count %u)\n",
+ sc->beacon.bmisscnt);
+ ath_reset(sc, false);
+}
+
/*
- * Setup the beacon frame for transmit.
- *
* Associates the beacon frame buffer with a transmit descriptor. Will set
* up all required antenna switch parameters, rate codes, and channel flags.
* Beacons are always sent out at the lowest rate, and are not retried.
*/
-
static void ath_beacon_setup(struct ath_softc *sc,
- struct ath_vap *avp, struct ath_buf *bf)
+ struct ath_vif *avp, struct ath_buf *bf)
{
struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
- struct ath_hal *ah = sc->sc_ah;
+ struct ath_hw *ah = sc->sc_ah;
struct ath_desc *ds;
+ struct ath9k_11n_rate_series series[4];
+ struct ath_rate_table *rt;
int flags, antenna;
- const struct ath9k_rate_table *rt;
u8 rix, rate;
int ctsrate = 0;
int ctsduration = 0;
- struct ath9k_11n_rate_series series[4];
- DPRINTF(sc, ATH_DBG_BEACON, "%s: m %p len %u\n",
- __func__, skb, skb->len);
+ DPRINTF(sc, ATH_DBG_BEACON, "m %p len %u\n", skb, skb->len);
/* setup descriptors */
ds = bf->bf_desc;
flags = ATH9K_TXDESC_NOACK;
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
- (ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC &&
+ (ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
ds->ds_link = bf->bf_daddr; /* self-linked */
flags |= ATH9K_TXDESC_VEOL;
/* Let hardware handle antenna switching. */
* SWBA's
* XXX assumes two antenna
*/
- antenna = ((sc->ast_be_xmit / sc->sc_nbcnvaps) & 1 ? 2 : 1);
+ antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
}
ds->ds_data = bf->bf_buf_addr;
* XXX everything at min xmit rate
*/
rix = 0;
- rt = sc->sc_currates;
- rate = rt->info[rix].rateCode;
+ rt = sc->cur_rate_table;
+ rate = rt->info[rix].ratecode;
if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
- rate |= rt->info[rix].shortPreamble;
+ rate |= rt->info[rix].short_preamble;
ath9k_hw_set11n_txdesc(ah, ds,
- skb->len + FCS_LEN, /* frame length */
- ATH9K_PKT_TYPE_BEACON, /* Atheros packet type */
- avp->av_btxctl.txpower, /* txpower XXX */
- ATH9K_TXKEYIX_INVALID, /* no encryption */
- ATH9K_KEY_TYPE_CLEAR, /* no encryption */
- flags /* no ack, veol for beacons */
+ skb->len + FCS_LEN, /* frame length */
+ ATH9K_PKT_TYPE_BEACON, /* Atheros packet type */
+ MAX_RATE_POWER, /* FIXME */
+ ATH9K_TXKEYIX_INVALID, /* no encryption */
+ ATH9K_KEY_TYPE_CLEAR, /* no encryption */
+ flags /* no ack,
+ veol for beacons */
);
/* NB: beacon's BufLen must be a multiple of 4 bytes */
ath9k_hw_filltxdesc(ah, ds,
roundup(skb->len, 4), /* buffer length */
- true, /* first segment */
- true, /* last segment */
- ds /* first descriptor */
+ true, /* first segment */
+ true, /* last segment */
+ ds /* first descriptor */
);
- memzero(series, sizeof(struct ath9k_11n_rate_series) * 4);
+ memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
series[0].Tries = 1;
series[0].Rate = rate;
- series[0].ChSel = sc->sc_tx_chainmask;
+ series[0].ChSel = sc->tx_chainmask;
series[0].RateFlags = (ctsrate) ? ATH9K_RATESERIES_RTS_CTS : 0;
ath9k_hw_set11n_ratescenario(ah, ds, ds, 0,
ctsrate, ctsduration, series, 4, 0);
}
-/* Move everything from the vap's mcast queue to the hardware cab queue.
- * Caller must hold mcasq lock and cabq lock
- * XXX MORE_DATA bit?
- */
-static void empty_mcastq_into_cabq(struct ath_hal *ah,
- struct ath_txq *mcastq, struct ath_txq *cabq)
-{
- struct ath_buf *bfmcast;
-
- BUG_ON(list_empty(&mcastq->axq_q));
-
- bfmcast = list_first_entry(&mcastq->axq_q, struct ath_buf, list);
-
- /* link the descriptors */
- if (!cabq->axq_link)
- ath9k_hw_puttxbuf(ah, cabq->axq_qnum, bfmcast->bf_daddr);
- else
- *cabq->axq_link = bfmcast->bf_daddr;
-
- /* append the private vap mcast list to the cabq */
-
- cabq->axq_depth += mcastq->axq_depth;
- cabq->axq_totalqueued += mcastq->axq_totalqueued;
- cabq->axq_linkbuf = mcastq->axq_linkbuf;
- cabq->axq_link = mcastq->axq_link;
- list_splice_tail_init(&mcastq->axq_q, &cabq->axq_q);
- mcastq->axq_depth = 0;
- mcastq->axq_totalqueued = 0;
- mcastq->axq_linkbuf = NULL;
- mcastq->axq_link = NULL;
-}
-
-/* TODO: use ieee80211_get_buffered_bc() to fetch power saved mcast frames */
-/* This is only run at DTIM. We move everything from the vap's mcast queue
- * to the hardware cab queue. Caller must hold the mcastq lock. */
-static void trigger_mcastq(struct ath_hal *ah,
- struct ath_txq *mcastq, struct ath_txq *cabq)
-{
- spin_lock_bh(&cabq->axq_lock);
-
- if (!list_empty(&mcastq->axq_q))
- empty_mcastq_into_cabq(ah, mcastq, cabq);
-
- /* cabq is gated by beacon so it is safe to start here */
- if (!list_empty(&cabq->axq_q))
- ath9k_hw_txstart(ah, cabq->axq_qnum);
-
- spin_unlock_bh(&cabq->axq_lock);
-}
-
-/*
- * Generate beacon frame and queue cab data for a vap.
- *
- * Updates the contents of the beacon frame. It is assumed that the buffer for
- * the beacon frame has been allocated in the ATH object, and simply needs to
- * be filled for this cycle. Also, any CAB (crap after beacon?) traffic will
- * be added to the beacon frame at this point.
-*/
+/* Generate beacon frame and queue cab data for a VIF */
static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
{
- struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf;
- struct ath_vap *avp;
+ struct ath_vif *avp;
struct sk_buff *skb;
- int cabq_depth;
- int mcastq_depth;
- int is_beacon_dtim = 0;
struct ath_txq *cabq;
- struct ath_txq *mcastq;
+ struct ieee80211_vif *vif;
struct ieee80211_tx_info *info;
- avp = sc->sc_vaps[if_id];
+ int cabq_depth;
- mcastq = &avp->av_mcastq;
- cabq = sc->sc_cabq;
+ vif = sc->vifs[if_id];
+ ASSERT(vif);
- ASSERT(avp);
+ avp = (void *)vif->drv_priv;
+ cabq = sc->beacon.cabq;
if (avp->av_bcbuf == NULL) {
- DPRINTF(sc, ATH_DBG_BEACON, "%s: avp=%p av_bcbuf=%p\n",
- __func__, avp, avp->av_bcbuf);
+ DPRINTF(sc, ATH_DBG_BEACON, "avp=%p av_bcbuf=%p\n",
+ avp, avp->av_bcbuf);
return NULL;
}
+
bf = avp->av_bcbuf;
- skb = (struct sk_buff *) bf->bf_mpdu;
+ skb = (struct sk_buff *)bf->bf_mpdu;
if (skb) {
- pci_unmap_single(sc->pdev, bf->bf_dmacontext,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
+ dma_unmap_single(sc->dev, bf->bf_dmacontext,
+ skb->len,
+ DMA_TO_DEVICE);
+ dev_kfree_skb_any(skb);
}
- skb = ieee80211_beacon_get(sc->hw, avp->av_if_data);
+ skb = ieee80211_beacon_get(sc->hw, vif);
bf->bf_mpdu = skb;
if (skb == NULL)
return NULL;
+
info = IEEE80211_SKB_CB(skb);
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
/*
* TODO: make sure the seq# gets assigned properly (vs. other
* TX frames)
*/
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- sc->seq_no += 0x10;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ sc->tx.seq_no += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
- hdr->seq_ctrl |= cpu_to_le16(sc->seq_no);
+ hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
}
+
bf->bf_buf_addr = bf->bf_dmacontext =
- pci_map_single(sc->pdev, skb->data,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
+ dma_map_single(sc->dev, skb->data,
+ skb->len,
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(sc->dev, bf->bf_buf_addr))) {
+ dev_kfree_skb_any(skb);
+ bf->bf_mpdu = NULL;
+ DPRINTF(sc, ATH_DBG_CONFIG,
+ "dma_mapping_error() on beaconing\n");
+ return NULL;
+ }
- /* TODO: convert to use ieee80211_get_buffered_bc() */
- /* XXX: spin_lock_bh should not be used here, but sparse bitches
- * otherwise. We should fix sparse :) */
- spin_lock_bh(&mcastq->axq_lock);
- mcastq_depth = avp->av_mcastq.axq_depth;
+ skb = ieee80211_get_buffered_bc(sc->hw, vif);
/*
* if the CABQ traffic from previous DTIM is pending and the current
* beacon is also a DTIM.
- * 1) if there is only one vap let the cab traffic continue.
- * 2) if there are more than one vap and we are using staggered
+ * 1) if there is only one vif let the cab traffic continue.
+ * 2) if there are more than one vif and we are using staggered
* beacons, then drain the cabq by dropping all the frames in
- * the cabq so that the current vaps cab traffic can be scheduled.
+ * the cabq so that the current vifs cab traffic can be scheduled.
*/
spin_lock_bh(&cabq->axq_lock);
cabq_depth = cabq->axq_depth;
spin_unlock_bh(&cabq->axq_lock);
- if (avp->av_boff.bo_tim)
- is_beacon_dtim = avp->av_boff.bo_tim[4] & 1;
-
- if (mcastq_depth && is_beacon_dtim && cabq_depth) {
+ if (skb && cabq_depth) {
/*
* Unlock the cabq lock as ath_tx_draintxq acquires
* the lock again which is a common function and that
* acquires txq lock inside.
*/
- if (sc->sc_nvaps > 1) {
- ath_tx_draintxq(sc, cabq, false);
+ if (sc->nvifs > 1) {
+ ath_draintxq(sc, cabq, false);
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: flush previous cabq traffic\n", __func__);
+ "flush previous cabq traffic\n");
}
}
* Enable the CAB queue before the beacon queue to
* insure cab frames are triggered by this beacon.
*/
- if (is_beacon_dtim)
- trigger_mcastq(ah, mcastq, cabq);
+ while (skb) {
+ ath_tx_cabq(sc, skb);
+ skb = ieee80211_get_buffered_bc(sc->hw, vif);
+ }
- spin_unlock_bh(&mcastq->axq_lock);
return bf;
}
* Startup beacon transmission for adhoc mode when they are sent entirely
* by the hardware using the self-linked descriptor + veol trick.
*/
-
static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id)
{
- struct ath_hal *ah = sc->sc_ah;
+ struct ieee80211_vif *vif;
+ struct ath_hw *ah = sc->sc_ah;
struct ath_buf *bf;
- struct ath_vap *avp;
+ struct ath_vif *avp;
struct sk_buff *skb;
- avp = sc->sc_vaps[if_id];
- ASSERT(avp);
+ vif = sc->vifs[if_id];
+ ASSERT(vif);
+
+ avp = (void *)vif->drv_priv;
if (avp->av_bcbuf == NULL) {
- DPRINTF(sc, ATH_DBG_BEACON, "%s: avp=%p av_bcbuf=%p\n",
- __func__, avp, avp != NULL ? avp->av_bcbuf : NULL);
+ DPRINTF(sc, ATH_DBG_BEACON, "avp=%p av_bcbuf=%p\n",
+ avp, avp != NULL ? avp->av_bcbuf : NULL);
return;
}
bf = avp->av_bcbuf;
ath_beacon_setup(sc, avp, bf);
/* NB: caller is known to have already stopped tx dma */
- ath9k_hw_puttxbuf(ah, sc->sc_bhalq, bf->bf_daddr);
- ath9k_hw_txstart(ah, sc->sc_bhalq);
- DPRINTF(sc, ATH_DBG_BEACON, "%s: TXDP%u = %llx (%p)\n", __func__,
- sc->sc_bhalq, ito64(bf->bf_daddr), bf->bf_desc);
+ ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr);
+ ath9k_hw_txstart(ah, sc->beacon.beaconq);
+ DPRINTF(sc, ATH_DBG_BEACON, "TXDP%u = %llx (%p)\n",
+ sc->beacon.beaconq, ito64(bf->bf_daddr), bf->bf_desc);
}
-/*
- * Setup a h/w transmit queue for beacons.
- *
- * This function allocates an information structure (struct ath9k_txq_info)
- * on the stack, sets some specific parameters (zero out channel width
- * min/max, and enable aifs). The info structure does not need to be
- * persistant.
-*/
-
-int ath_beaconq_setup(struct ath_hal *ah)
+int ath_beaconq_setup(struct ath_hw *ah)
{
struct ath9k_tx_queue_info qi;
- memzero(&qi, sizeof(qi));
+ memset(&qi, 0, sizeof(qi));
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
qi.tqi_cwmax = 0;
return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
}
-
-/*
- * Allocate and setup an initial beacon frame.
- *
- * Allocate a beacon state variable for a specific VAP instance created on
- * the ATH interface. This routine also calculates the beacon "slot" for
- * staggared beacons in the mBSSID case.
-*/
-
int ath_beacon_alloc(struct ath_softc *sc, int if_id)
{
- struct ath_vap *avp;
- struct ieee80211_hdr *wh;
+ struct ieee80211_vif *vif;
+ struct ath_vif *avp;
+ struct ieee80211_hdr *hdr;
struct ath_buf *bf;
struct sk_buff *skb;
+ __le64 tstamp;
- avp = sc->sc_vaps[if_id];
- ASSERT(avp);
+ vif = sc->vifs[if_id];
+ ASSERT(vif);
+
+ avp = (void *)vif->drv_priv;
/* Allocate a beacon descriptor if we haven't done so. */
if (!avp->av_bcbuf) {
- /*
- * Allocate beacon state for hostap/ibss. We know
- * a buffer is available.
- */
-
- avp->av_bcbuf = list_first_entry(&sc->sc_bbuf,
- struct ath_buf, list);
+ /* Allocate beacon state for hostap/ibss. We know
+ * a buffer is available. */
+ avp->av_bcbuf = list_first_entry(&sc->beacon.bbuf,
+ struct ath_buf, list);
list_del(&avp->av_bcbuf->list);
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP ||
- !(sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
+ !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
int slot;
/*
- * Assign the vap to a beacon xmit slot. As
+ * Assign the vif to a beacon xmit slot. As
* above, this cannot fail to find one.
*/
avp->av_bslot = 0;
for (slot = 0; slot < ATH_BCBUF; slot++)
- if (sc->sc_bslot[slot] == ATH_IF_ID_ANY) {
+ if (sc->beacon.bslot[slot] == ATH_IF_ID_ANY) {
/*
* XXX hack, space out slots to better
* deal with misses
*/
if (slot+1 < ATH_BCBUF &&
- sc->sc_bslot[slot+1] ==
+ sc->beacon.bslot[slot+1] ==
ATH_IF_ID_ANY) {
avp->av_bslot = slot+1;
break;
avp->av_bslot = slot;
/* NB: keep looking for a double slot */
}
- BUG_ON(sc->sc_bslot[avp->av_bslot] != ATH_IF_ID_ANY);
- sc->sc_bslot[avp->av_bslot] = if_id;
- sc->sc_nbcnvaps++;
+ BUG_ON(sc->beacon.bslot[avp->av_bslot] != ATH_IF_ID_ANY);
+ sc->beacon.bslot[avp->av_bslot] = if_id;
+ sc->nbcnvifs++;
}
}
bf = avp->av_bcbuf;
if (bf->bf_mpdu != NULL) {
skb = (struct sk_buff *)bf->bf_mpdu;
- pci_unmap_single(sc->pdev, bf->bf_dmacontext,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
+ dma_unmap_single(sc->dev, bf->bf_dmacontext,
+ skb->len,
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
}
/*
- * NB: the beacon data buffer must be 32-bit aligned;
- * we assume the wbuf routines will return us something
- * with this alignment (perhaps should assert).
- * FIXME: Fill avp->av_boff.bo_tim,avp->av_btxctl.txpower and
+ * NB: the beacon data buffer must be 32-bit aligned.
+ * FIXME: Fill avp->av_btxctl.txpower and
* avp->av_btxctl.shortPreamble
*/
- skb = ieee80211_beacon_get(sc->hw, avp->av_if_data);
+ skb = ieee80211_beacon_get(sc->hw, vif);
if (skb == NULL) {
- DPRINTF(sc, ATH_DBG_BEACON, "%s: cannot get skb\n",
- __func__);
+ DPRINTF(sc, ATH_DBG_BEACON, "cannot get skb\n");
return -ENOMEM;
}
+ tstamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ sc->beacon.bc_tstamp = le64_to_cpu(tstamp);
+
/*
* Calculate a TSF adjustment factor required for
* staggered beacons. Note that we assume the format
* timestamp then convert to TSF units and handle
* byte swapping before writing it in the frame.
* The hardware will then add this each time a beacon
- * frame is sent. Note that we align vap's 1..N
- * and leave vap 0 untouched. This means vap 0
+ * frame is sent. Note that we align vif's 1..N
+ * and leave vif 0 untouched. This means vap 0
* has a timestamp in one beacon interval while the
* others get a timestamp aligned to the next interval.
*/
val = cpu_to_le64(tsfadjust << 10); /* TU->TSF */
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: %s beacons, bslot %d intval %u tsfadjust %llu\n",
- __func__, "stagger",
+ "stagger beacons, bslot %d intval %u tsfadjust %llu\n",
avp->av_bslot, intval, (unsigned long long)tsfadjust);
- wh = (struct ieee80211_hdr *)skb->data;
- memcpy(&wh[1], &val, sizeof(val));
+ hdr = (struct ieee80211_hdr *)skb->data;
+ memcpy(&hdr[1], &val, sizeof(val));
}
- bf->bf_buf_addr = bf->bf_dmacontext =
- pci_map_single(sc->pdev, skb->data,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
bf->bf_mpdu = skb;
+ bf->bf_buf_addr = bf->bf_dmacontext =
+ dma_map_single(sc->dev, skb->data,
+ skb->len,
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(sc->dev, bf->bf_buf_addr))) {
+ dev_kfree_skb_any(skb);
+ bf->bf_mpdu = NULL;
+ DPRINTF(sc, ATH_DBG_CONFIG,
+ "dma_mapping_error() on beacon alloc\n");
+ return -ENOMEM;
+ }
return 0;
}
-/*
- * Reclaim beacon resources and return buffer to the pool.
- *
- * Checks the VAP to put the beacon frame buffer back to the ATH object
- * queue, and de-allocates any wbuf frames that were sent as CAB traffic.
-*/
-
-void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
+void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
{
if (avp->av_bcbuf != NULL) {
struct ath_buf *bf;
if (avp->av_bslot != -1) {
- sc->sc_bslot[avp->av_bslot] = ATH_IF_ID_ANY;
- sc->sc_nbcnvaps--;
+ sc->beacon.bslot[avp->av_bslot] = ATH_IF_ID_ANY;
+ sc->nbcnvifs--;
}
bf = avp->av_bcbuf;
if (bf->bf_mpdu != NULL) {
struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
- pci_unmap_single(sc->pdev, bf->bf_dmacontext,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
+ dma_unmap_single(sc->dev, bf->bf_dmacontext,
+ skb->len,
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
}
- list_add_tail(&bf->list, &sc->sc_bbuf);
+ list_add_tail(&bf->list, &sc->beacon.bbuf);
avp->av_bcbuf = NULL;
}
}
-/*
- * Reclaim beacon resources and return buffer to the pool.
- *
- * This function will free any wbuf frames that are still attached to the
- * beacon buffers in the ATH object. Note that this does not de-allocate
- * any wbuf objects that are in the transmit queue and have not yet returned
- * to the ATH object.
-*/
-
-void ath_beacon_free(struct ath_softc *sc)
-{
- struct ath_buf *bf;
-
- list_for_each_entry(bf, &sc->sc_bbuf, list) {
- if (bf->bf_mpdu != NULL) {
- struct sk_buff *skb = (struct sk_buff *) bf->bf_mpdu;
- pci_unmap_single(sc->pdev, bf->bf_dmacontext,
- skb_end_pointer(skb) - skb->head,
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(skb);
- bf->bf_mpdu = NULL;
- }
- }
-}
-
-/*
- * Tasklet for Sending Beacons
- *
- * Transmit one or more beacon frames at SWBA. Dynamic updates to the frame
- * contents are done as needed and the slot time is also adjusted based on
- * current state.
- *
- * This tasklet is not scheduled, it's called in ISR context.
-*/
-
void ath9k_beacon_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
- struct ath_hal *ah = sc->sc_ah;
+ struct ath_hw *ah = sc->sc_ah;
struct ath_buf *bf = NULL;
int slot, if_id;
u32 bfaddr;
if (sc->sc_flags & SC_OP_NO_RESET) {
show_cycles = ath9k_hw_GetMibCycleCountsPct(ah,
- &rx_clear,
- &rx_frame,
- &tx_frame);
+ &rx_clear, &rx_frame, &tx_frame);
}
/*
* and wait for the next. Missed beacons indicate
* a problem and should not occur. If we miss too
* many consecutive beacons reset the device.
+ *
+ * FIXME: Clean up this mess !!
*/
- if (ath9k_hw_numtxpending(ah, sc->sc_bhalq) != 0) {
- sc->sc_bmisscount++;
+ if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0) {
+ sc->beacon.bmisscnt++;
/* XXX: doth needs the chanchange IE countdown decremented.
* We should consider adding a mac80211 call to indicate
* a beacon miss so appropriate action could be taken
* (in that layer).
*/
- if (sc->sc_bmisscount < BSTUCK_THRESH) {
+ if (sc->beacon.bmisscnt < BSTUCK_THRESH) {
if (sc->sc_flags & SC_OP_NO_RESET) {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: missed %u consecutive beacons\n",
- __func__, sc->sc_bmisscount);
+ "missed %u consecutive beacons\n",
+ sc->beacon.bmisscnt);
if (show_cycles) {
/*
- * Display cycle counter stats
- * from HW to aide in debug of
- * stickiness.
+ * Display cycle counter stats from HW
+ * to aide in debug of stickiness.
*/
- DPRINTF(sc,
- ATH_DBG_BEACON,
- "%s: busy times: rx_clear=%d, "
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "busy times: rx_clear=%d, "
"rx_frame=%d, tx_frame=%d\n",
- __func__, rx_clear, rx_frame,
+ rx_clear, rx_frame,
tx_frame);
} else {
- DPRINTF(sc,
- ATH_DBG_BEACON,
- "%s: unable to obtain "
- "busy times\n", __func__);
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "unable to obtain "
+ "busy times\n");
}
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: missed %u consecutive beacons\n",
- __func__, sc->sc_bmisscount);
+ "missed %u consecutive beacons\n",
+ sc->beacon.bmisscnt);
}
- } else if (sc->sc_bmisscount >= BSTUCK_THRESH) {
+ } else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) {
if (sc->sc_flags & SC_OP_NO_RESET) {
- if (sc->sc_bmisscount == BSTUCK_THRESH) {
- DPRINTF(sc,
- ATH_DBG_BEACON,
- "%s: beacon is officially "
- "stuck\n", __func__);
- ath9k_hw_dmaRegDump(ah);
+ if (sc->beacon.bmisscnt == BSTUCK_THRESH) {
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "beacon is officially "
+ "stuck\n");
}
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: beacon is officially stuck\n",
- __func__);
+ "beacon is officially stuck\n");
ath_bstuck_process(sc);
}
}
-
return;
}
- if (sc->sc_bmisscount != 0) {
+
+ if (sc->beacon.bmisscnt != 0) {
if (sc->sc_flags & SC_OP_NO_RESET) {
- DPRINTF(sc,
- ATH_DBG_BEACON,
- "%s: resume beacon xmit after %u misses\n",
- __func__, sc->sc_bmisscount);
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "resume beacon xmit after %u misses\n",
+ sc->beacon.bmisscnt);
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: resume beacon xmit after %u misses\n",
- __func__, sc->sc_bmisscount);
+ "resume beacon xmit after %u misses\n",
+ sc->beacon.bmisscnt);
}
- sc->sc_bmisscount = 0;
+ sc->beacon.bmisscnt = 0;
}
/*
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf);
slot = ((tsftu % intval) * ATH_BCBUF) / intval;
- if_id = sc->sc_bslot[(slot + 1) % ATH_BCBUF];
+ if_id = sc->beacon.bslot[(slot + 1) % ATH_BCBUF];
+
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
- __func__, slot, (unsigned long long) tsf, tsftu,
- intval, if_id);
+ "slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
+ slot, (unsigned long long)tsf, tsftu,
+ intval, if_id);
+
bfaddr = 0;
if (if_id != ATH_IF_ID_ANY) {
bf = ath_beacon_generate(sc, if_id);
* set to ATH_BCBUF so this check is a noop.
*/
/* XXX locking */
- if (sc->sc_updateslot == UPDATE) {
- sc->sc_updateslot = COMMIT; /* commit next beacon */
- sc->sc_slotupdate = slot;
- } else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot)
- ath_setslottime(sc); /* commit change to hardware */
-
+ if (sc->beacon.updateslot == UPDATE) {
+ sc->beacon.updateslot = COMMIT; /* commit next beacon */
+ sc->beacon.slotupdate = slot;
+ } else if (sc->beacon.updateslot == COMMIT && sc->beacon.slotupdate == slot) {
+ ath9k_hw_setslottime(sc->sc_ah, sc->beacon.slottime);
+ sc->beacon.updateslot = OK;
+ }
if (bfaddr != 0) {
/*
* Stop any current dma and put the new frame(s) on the queue.
* This should never fail since we check above that no frames
* are still pending on the queue.
*/
- if (!ath9k_hw_stoptxdma(ah, sc->sc_bhalq)) {
+ if (!ath9k_hw_stoptxdma(ah, sc->beacon.beaconq)) {
DPRINTF(sc, ATH_DBG_FATAL,
- "%s: beacon queue %u did not stop?\n",
- __func__, sc->sc_bhalq);
+ "beacon queue %u did not stop?\n", sc->beacon.beaconq);
/* NB: the HAL still stops DMA, so proceed */
}
/* NB: cabq traffic should already be queued and primed */
- ath9k_hw_puttxbuf(ah, sc->sc_bhalq, bfaddr);
- ath9k_hw_txstart(ah, sc->sc_bhalq);
+ ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bfaddr);
+ ath9k_hw_txstart(ah, sc->beacon.beaconq);
- sc->ast_be_xmit += bc; /* XXX per-vap? */
+ sc->beacon.ast_be_xmit += bc; /* XXX per-vif? */
}
}
/*
- * Tasklet for Beacon Stuck processing
- *
- * Processing for Beacon Stuck.
- * Basically calls the ath_internal_reset function to reset the chip.
-*/
-
-void ath_bstuck_process(struct ath_softc *sc)
-{
- DPRINTF(sc, ATH_DBG_BEACON,
- "%s: stuck beacon; resetting (bmiss count %u)\n",
- __func__, sc->sc_bmisscount);
- ath_reset(sc, false);
-}
-
-/*
* Configure the beacon and sleep timers.
*
* When operating as an AP this resets the TSF and sets
* interrupt when we stop seeing beacons from the AP
* we've associated with.
*/
-
void ath_beacon_config(struct ath_softc *sc, int if_id)
{
- struct ath_hal *ah = sc->sc_ah;
- u32 nexttbtt, intval;
+ struct ieee80211_vif *vif;
+ struct ath_hw *ah = sc->sc_ah;
struct ath_beacon_config conf;
- enum ath9k_opmode av_opmode;
+ struct ath_vif *avp;
+ enum nl80211_iftype opmode;
+ u32 nexttbtt, intval;
- if (if_id != ATH_IF_ID_ANY)
- av_opmode = sc->sc_vaps[if_id]->av_opmode;
- else
- av_opmode = sc->sc_ah->ah_opmode;
+ if (if_id != ATH_IF_ID_ANY) {
+ vif = sc->vifs[if_id];
+ ASSERT(vif);
+ avp = (void *)vif->drv_priv;
+ opmode = avp->av_opmode;
+ } else {
+ opmode = sc->sc_ah->opmode;
+ }
- memzero(&conf, sizeof(struct ath_beacon_config));
+ memset(&conf, 0, sizeof(struct ath_beacon_config));
- /* FIXME: Use default values for now - Sujith */
- /* Query beacon configuration first */
- /*
- * Protocol stack doesn't support dynamic beacon configuration,
- * use default configurations.
- */
conf.beacon_interval = sc->hw->conf.beacon_int ?
sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
conf.listen_interval = 1;
conf.bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf.beacon_interval;
/* extract tstamp from last beacon and convert to TU */
- nexttbtt = TSF_TO_TU(get_unaligned_le32(conf.u.last_tstamp + 4),
- get_unaligned_le32(conf.u.last_tstamp));
+ nexttbtt = TSF_TO_TU(sc->beacon.bc_tstamp >> 32, sc->beacon.bc_tstamp);
+
/* XXX conditionalize multi-bss support? */
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
/*
* For multi-bss ap support beacons are either staggered
* evenly over N slots or burst together. For the former
intval = conf.beacon_interval & ATH9K_BEACON_PERIOD;
}
- if (nexttbtt == 0) /* e.g. for ap mode */
+ if (nexttbtt == 0) /* e.g. for ap mode */
nexttbtt = intval;
- else if (intval) /* NB: can be 0 for monitor mode */
+ else if (intval) /* NB: can be 0 for monitor mode */
nexttbtt = roundup(nexttbtt, intval);
- DPRINTF(sc, ATH_DBG_BEACON, "%s: nexttbtt %u intval %u (%u)\n",
- __func__, nexttbtt, intval, conf.beacon_interval);
- /* Check for ATH9K_M_HOSTAP and sc_nostabeacons for WDS client */
- if (sc->sc_ah->ah_opmode == ATH9K_M_STA) {
+
+ DPRINTF(sc, ATH_DBG_BEACON, "nexttbtt %u intval %u (%u)\n",
+ nexttbtt, intval, conf.beacon_interval);
+
+ /* Check for NL80211_IFTYPE_AP and sc_nostabeacons for WDS client */
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
struct ath9k_beacon_state bs;
u64 tsf;
u32 tsftu;
* last beacon we received (which may be none).
*/
dtimperiod = conf.dtim_period;
- if (dtimperiod <= 0) /* NB: 0 if not known */
+ if (dtimperiod <= 0) /* NB: 0 if not known */
dtimperiod = 1;
dtimcount = conf.dtim_count;
- if (dtimcount >= dtimperiod) /* NB: sanity check */
- dtimcount = 0; /* XXX? */
- cfpperiod = 1; /* NB: no PCF support yet */
+ if (dtimcount >= dtimperiod) /* NB: sanity check */
+ dtimcount = 0;
+ cfpperiod = 1; /* NB: no PCF support yet */
cfpcount = 0;
sleepduration = conf.listen_interval * intval;
if (sleepduration <= 0)
sleepduration = intval;
-#define FUDGE 2
+#define FUDGE 2
/*
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
}
} while (nexttbtt < tsftu);
#undef FUDGE
- memzero(&bs, sizeof(bs));
+ memset(&bs, 0, sizeof(bs));
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
bs.bs_dtimperiod = dtimperiod*intval;
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
+
/*
* Calculate the number of consecutive beacons to miss
* before taking a BMISS interrupt. The configuration
* result to at most 15 beacons.
*/
if (sleepduration > intval) {
- bs.bs_bmissthreshold =
- conf.listen_interval *
- ATH_DEFAULT_BMISS_LIMIT / 2;
+ bs.bs_bmissthreshold = conf.listen_interval *
+ ATH_DEFAULT_BMISS_LIMIT / 2;
} else {
bs.bs_bmissthreshold =
DIV_ROUND_UP(conf.bmiss_timeout, intval);
* XXX fixed at 100ms
*/
- bs.bs_sleepduration =
- roundup(IEEE80211_MS_TO_TU(100), sleepduration);
+ bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100),
+ sleepduration);
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = bs.bs_dtimperiod;
+ /* TSF out of range threshold fixed at 1 second */
+ bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
+
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: tsf %llu "
+ "tsf %llu "
"tsf:tu %u "
"intval %u "
"nexttbtt %u "
"maxdur %u "
"next %u "
"timoffset %u\n",
- __func__,
(unsigned long long)tsf, tsftu,
bs.bs_intval,
bs.bs_nexttbtt,
ath9k_hw_set_interrupts(ah, 0);
ath9k_hw_set_sta_beacon_timers(ah, &bs);
- sc->sc_imask |= ATH9K_INT_BMISS;
- ath9k_hw_set_interrupts(ah, sc->sc_imask);
+ sc->imask |= ATH9K_INT_BMISS;
+ ath9k_hw_set_interrupts(ah, sc->imask);
} else {
u64 tsf;
u32 tsftu;
ath9k_hw_set_interrupts(ah, 0);
- if (nexttbtt == intval)
- intval |= ATH9K_BEACON_RESET_TSF;
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS) {
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) {
/*
* Pull nexttbtt forward to reflect the current
- * TSF .
+ * TSF
*/
-#define FUDGE 2
+#define FUDGE 2
if (!(intval & ATH9K_BEACON_RESET_TSF)) {
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU((u32)(tsf>>32),
}
#undef FUDGE
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: IBSS nexttbtt %u intval %u (%u)\n",
- __func__, nexttbtt,
+ "IBSS nexttbtt %u intval %u (%u)\n",
+ nexttbtt,
intval & ~ATH9K_BEACON_RESET_TSF,
conf.beacon_interval);
* deal with things.
*/
intval |= ATH9K_BEACON_ENA;
- if (!(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
- sc->sc_imask |= ATH9K_INT_SWBA;
+ if (!(ah->caps.hw_caps & ATH9K_HW_CAP_VEOL))
+ sc->imask |= ATH9K_INT_SWBA;
ath_beaconq_config(sc);
- } else if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ } else if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
+ if (nexttbtt == intval)
+ intval |= ATH9K_BEACON_RESET_TSF;
+
/*
* In AP mode we enable the beacon timers and
* SWBA interrupts to prepare beacon frames.
*/
intval |= ATH9K_BEACON_ENA;
- sc->sc_imask |= ATH9K_INT_SWBA; /* beacon prepare */
+ sc->imask |= ATH9K_INT_SWBA; /* beacon prepare */
ath_beaconq_config(sc);
}
ath9k_hw_beaconinit(ah, nexttbtt, intval);
- sc->sc_bmisscount = 0;
- ath9k_hw_set_interrupts(ah, sc->sc_imask);
+ sc->beacon.bmisscnt = 0;
+ ath9k_hw_set_interrupts(ah, sc->imask);
/*
* When using a self-linked beacon descriptor in
* ibss mode load it once here.
*/
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
- (ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC &&
+ (ah->caps.hw_caps & ATH9K_HW_CAP_VEOL))
ath_beacon_start_adhoc(sc, 0);
}
}
-/* Function to collect beacon rssi data and resync beacon if necessary */
-
void ath_beacon_sync(struct ath_softc *sc, int if_id)
{
/*
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff