+ if (rx_stats->rs_rssi != ATH9K_RSSI_BAD && !rx_stats->rs_moreaggr)
+- ATH_RSSI_LPF(aphy->last_rssi, rx_stats->rs_rssi);
++ ATH_RSSI_LPF(sc->last_rssi, rx_stats->rs_rssi);
+
+- last_rssi = aphy->last_rssi;
++ last_rssi = sc->last_rssi;
+ if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
+ rx_stats->rs_rssi = ATH_EP_RND(last_rssi,
+ ATH_RSSI_EP_MULTIPLIER);
+@@ -1644,7 +1591,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ * virtual wiphy so to account for that we iterate over the active
+ * wiphys and find the appropriate wiphy and therefore hw.
+ */
+- struct ieee80211_hw *hw = NULL;
++ struct ieee80211_hw *hw = sc->hw;
+ struct ieee80211_hdr *hdr;
+ int retval;
+ bool decrypt_error = false;
+@@ -1689,8 +1636,6 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len);
+ rxs = IEEE80211_SKB_RXCB(skb);
+
+- hw = ath_get_virt_hw(sc, hdr);
+-
+ ath_debug_stat_rx(sc, &rs);
+
+ /*
+@@ -1748,7 +1693,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ bf->bf_mpdu = NULL;
+ bf->bf_buf_addr = 0;
+ ath_err(common, "dma_mapping_error() on RX\n");
+- ath_rx_send_to_mac80211(hw, sc, skb);
++ ieee80211_rx(hw, skb);
+ break;
+ }
+
+@@ -1775,7 +1720,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)
+ ath_ant_comb_scan(sc, &rs);
+
+- ath_rx_send_to_mac80211(hw, sc, skb);
++ ieee80211_rx(hw, skb);
+
+ requeue:
+ if (edma) {
+--- a/drivers/net/wireless/ath/ath9k/virtual.c
++++ /dev/null
+@@ -1,669 +0,0 @@
+-/*
+- * Copyright (c) 2008-2009 Atheros Communications Inc.
+- *
+- * Permission to use, copy, modify, and/or distribute this software for any
+- * purpose with or without fee is hereby granted, provided that the above
+- * copyright notice and this permission notice appear in all copies.
+- *
+- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+- */
+-
+-#include <linux/slab.h>
+-
+-#include "ath9k.h"
+-
+-int ath9k_wiphy_add(struct ath_softc *sc)
+-{
+- int i, error;
+- struct ath_wiphy *aphy;
+- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+- struct ieee80211_hw *hw;
+- u8 addr[ETH_ALEN];
+-
+- hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy), &ath9k_ops);
+- if (hw == NULL)
+- return -ENOMEM;
+-
+- spin_lock_bh(&sc->wiphy_lock);
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (sc->sec_wiphy[i] == NULL)
+- break;
+- }
+-
+- if (i == sc->num_sec_wiphy) {
+- /* No empty slot available; increase array length */
+- struct ath_wiphy **n;
+- n = krealloc(sc->sec_wiphy,
+- (sc->num_sec_wiphy + 1) *
+- sizeof(struct ath_wiphy *),
+- GFP_ATOMIC);
+- if (n == NULL) {
+- spin_unlock_bh(&sc->wiphy_lock);
+- ieee80211_free_hw(hw);
+- return -ENOMEM;
+- }
+- n[i] = NULL;
+- sc->sec_wiphy = n;
+- sc->num_sec_wiphy++;
+- }
+-
+- SET_IEEE80211_DEV(hw, sc->dev);
+-
+- aphy = hw->priv;
+- aphy->sc = sc;
+- aphy->hw = hw;
+- sc->sec_wiphy[i] = aphy;
+- aphy->last_rssi = ATH_RSSI_DUMMY_MARKER;
+- spin_unlock_bh(&sc->wiphy_lock);
+-
+- memcpy(addr, common->macaddr, ETH_ALEN);
+- addr[0] |= 0x02; /* Locally managed address */
+- /*
+- * XOR virtual wiphy index into the least significant bits to generate
+- * a different MAC address for each virtual wiphy.
+- */
+- addr[5] ^= i & 0xff;
+- addr[4] ^= (i & 0xff00) >> 8;
+- addr[3] ^= (i & 0xff0000) >> 16;
+-
+- SET_IEEE80211_PERM_ADDR(hw, addr);
+-
+- ath9k_set_hw_capab(sc, hw);
+-
+- error = ieee80211_register_hw(hw);
+-
+- if (error == 0) {
+- /* Make sure wiphy scheduler is started (if enabled) */
+- ath9k_wiphy_set_scheduler(sc, sc->wiphy_scheduler_int);
+- }
+-
+- return error;
+-}
+-
+-int ath9k_wiphy_del(struct ath_wiphy *aphy)
+-{
+- struct ath_softc *sc = aphy->sc;
+- int i;
+-
+- spin_lock_bh(&sc->wiphy_lock);
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (aphy == sc->sec_wiphy[i]) {
+- sc->sec_wiphy[i] = NULL;
+- spin_unlock_bh(&sc->wiphy_lock);
+- ieee80211_unregister_hw(aphy->hw);
+- ieee80211_free_hw(aphy->hw);
+- return 0;
+- }
+- }
+- spin_unlock_bh(&sc->wiphy_lock);
+- return -ENOENT;
+-}
+-
+-static int ath9k_send_nullfunc(struct ath_wiphy *aphy,
+- struct ieee80211_vif *vif, const u8 *bssid,
+- int ps)
+-{
+- struct ath_softc *sc = aphy->sc;
+- struct ath_tx_control txctl;
+- struct sk_buff *skb;
+- struct ieee80211_hdr *hdr;
+- __le16 fc;
+- struct ieee80211_tx_info *info;
+-
+- skb = dev_alloc_skb(24);
+- if (skb == NULL)
+- return -ENOMEM;
+- hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
+- memset(hdr, 0, 24);
+- fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+- IEEE80211_FCTL_TODS);
+- if (ps)
+- fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+- hdr->frame_control = fc;
+- memcpy(hdr->addr1, bssid, ETH_ALEN);
+- memcpy(hdr->addr2, aphy->hw->wiphy->perm_addr, ETH_ALEN);
+- memcpy(hdr->addr3, bssid, ETH_ALEN);
+-
+- info = IEEE80211_SKB_CB(skb);
+- memset(info, 0, sizeof(*info));
+- info->flags = IEEE80211_TX_CTL_REQ_TX_STATUS;
+- info->control.vif = vif;
+- info->control.rates[0].idx = 0;
+- info->control.rates[0].count = 4;
+- info->control.rates[1].idx = -1;
+-
+- memset(&txctl, 0, sizeof(struct ath_tx_control));
+- txctl.txq = sc->tx.txq_map[WME_AC_VO];
+- txctl.frame_type = ps ? ATH9K_IFT_PAUSE : ATH9K_IFT_UNPAUSE;
+-
+- if (ath_tx_start(aphy->hw, skb, &txctl) != 0)
+- goto exit;
+-
+- return 0;
+-exit:
+- dev_kfree_skb_any(skb);
+- return -1;
+-}
+-
+-static bool __ath9k_wiphy_pausing(struct ath_softc *sc)
+-{
+- int i;
+- if (sc->pri_wiphy->state == ATH_WIPHY_PAUSING)
+- return true;
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (sc->sec_wiphy[i] &&
+- sc->sec_wiphy[i]->state == ATH_WIPHY_PAUSING)
+- return true;
+- }
+- return false;
+-}
+-
+-static bool ath9k_wiphy_pausing(struct ath_softc *sc)
+-{
+- bool ret;
+- spin_lock_bh(&sc->wiphy_lock);
+- ret = __ath9k_wiphy_pausing(sc);
+- spin_unlock_bh(&sc->wiphy_lock);
+- return ret;
+-}
+-
+-static bool __ath9k_wiphy_scanning(struct ath_softc *sc)
+-{
+- int i;
+- if (sc->pri_wiphy->state == ATH_WIPHY_SCAN)
+- return true;
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (sc->sec_wiphy[i] &&
+- sc->sec_wiphy[i]->state == ATH_WIPHY_SCAN)
+- return true;
+- }
+- return false;
+-}
+-
+-bool ath9k_wiphy_scanning(struct ath_softc *sc)
+-{
+- bool ret;
+- spin_lock_bh(&sc->wiphy_lock);
+- ret = __ath9k_wiphy_scanning(sc);
+- spin_unlock_bh(&sc->wiphy_lock);
+- return ret;
+-}
+-
+-static int __ath9k_wiphy_unpause(struct ath_wiphy *aphy);
+-
+-/* caller must hold wiphy_lock */
+-static void __ath9k_wiphy_unpause_ch(struct ath_wiphy *aphy)
+-{
+- if (aphy == NULL)
+- return;
+- if (aphy->chan_idx != aphy->sc->chan_idx)
+- return; /* wiphy not on the selected channel */
+- __ath9k_wiphy_unpause(aphy);
+-}
+-
+-static void ath9k_wiphy_unpause_channel(struct ath_softc *sc)
+-{
+- int i;
+- spin_lock_bh(&sc->wiphy_lock);
+- __ath9k_wiphy_unpause_ch(sc->pri_wiphy);
+- for (i = 0; i < sc->num_sec_wiphy; i++)
+- __ath9k_wiphy_unpause_ch(sc->sec_wiphy[i]);
+- spin_unlock_bh(&sc->wiphy_lock);
+-}
+-
+-void ath9k_wiphy_chan_work(struct work_struct *work)
+-{
+- struct ath_softc *sc = container_of(work, struct ath_softc, chan_work);
+- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+- struct ath_wiphy *aphy = sc->next_wiphy;
+-
+- if (aphy == NULL)
+- return;
+-
+- /*
+- * All pending interfaces paused; ready to change
+- * channels.
+- */
+-
+- /* Change channels */
+- mutex_lock(&sc->mutex);
+- /* XXX: remove me eventually */
+- ath9k_update_ichannel(sc, aphy->hw,
+- &sc->sc_ah->channels[sc->chan_idx]);
+-
+- /* sync hw configuration for hw code */
+- common->hw = aphy->hw;
+-
+- if (ath_set_channel(sc, aphy->hw,
+- &sc->sc_ah->channels[sc->chan_idx]) < 0) {
+- printk(KERN_DEBUG "ath9k: Failed to set channel for new "
+- "virtual wiphy\n");
+- mutex_unlock(&sc->mutex);
+- return;
+- }
+- mutex_unlock(&sc->mutex);
+-
+- ath9k_wiphy_unpause_channel(sc);
+-}
+-
+-/*
+- * ath9k version of ieee80211_tx_status() for TX frames that are generated
+- * internally in the driver.
+- */
+-void ath9k_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, int ftype)
+-{
+- struct ath_wiphy *aphy = hw->priv;
+- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+-
+- if (ftype == ATH9K_IFT_PAUSE && aphy->state == ATH_WIPHY_PAUSING) {
+- if (!(tx_info->flags & IEEE80211_TX_STAT_ACK)) {
+- printk(KERN_DEBUG "ath9k: %s: no ACK for pause "
+- "frame\n", wiphy_name(hw->wiphy));
+- /*
+- * The AP did not reply; ignore this to allow us to
+- * continue.
+- */
+- }
+- aphy->state = ATH_WIPHY_PAUSED;
+- if (!ath9k_wiphy_pausing(aphy->sc)) {
+- /*
+- * Drop from tasklet to work to allow mutex for channel
+- * change.
+- */
+- ieee80211_queue_work(aphy->sc->hw,
+- &aphy->sc->chan_work);
+- }
+- }
+-
+- dev_kfree_skb(skb);
+-}
+-
+-static void ath9k_mark_paused(struct ath_wiphy *aphy)
+-{
+- struct ath_softc *sc = aphy->sc;
+- aphy->state = ATH_WIPHY_PAUSED;
+- if (!__ath9k_wiphy_pausing(sc))
+- ieee80211_queue_work(sc->hw, &sc->chan_work);
+-}
+-
+-static void ath9k_pause_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+-{
+- struct ath_wiphy *aphy = data;
+- struct ath_vif *avp = (void *) vif->drv_priv;
+-
+- switch (vif->type) {
+- case NL80211_IFTYPE_STATION:
+- if (!vif->bss_conf.assoc) {
+- ath9k_mark_paused(aphy);
+- break;
+- }
+- /* TODO: could avoid this if already in PS mode */
+- if (ath9k_send_nullfunc(aphy, vif, avp->bssid, 1)) {
+- printk(KERN_DEBUG "%s: failed to send PS nullfunc\n",
+- __func__);
+- ath9k_mark_paused(aphy);
+- }
+- break;
+- case NL80211_IFTYPE_AP:
+- /* Beacon transmission is paused by aphy->state change */
+- ath9k_mark_paused(aphy);
+- break;
+- default:
+- break;
+- }
+-}
+-
+-/* caller must hold wiphy_lock */
+-static int __ath9k_wiphy_pause(struct ath_wiphy *aphy)
+-{
+- ieee80211_stop_queues(aphy->hw);
+- aphy->state = ATH_WIPHY_PAUSING;
+- /*
+- * TODO: handle PAUSING->PAUSED for the case where there are multiple
+- * active vifs (now we do it on the first vif getting ready; should be
+- * on the last)
+- */
+- ieee80211_iterate_active_interfaces_atomic(aphy->hw, ath9k_pause_iter,
+- aphy);
+- return 0;
+-}
+-
+-int ath9k_wiphy_pause(struct ath_wiphy *aphy)
+-{
+- int ret;
+- spin_lock_bh(&aphy->sc->wiphy_lock);
+- ret = __ath9k_wiphy_pause(aphy);
+- spin_unlock_bh(&aphy->sc->wiphy_lock);
+- return ret;
+-}
+-
+-static void ath9k_unpause_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+-{
+- struct ath_wiphy *aphy = data;
+- struct ath_vif *avp = (void *) vif->drv_priv;
+-
+- switch (vif->type) {
+- case NL80211_IFTYPE_STATION:
+- if (!vif->bss_conf.assoc)
+- break;
+- ath9k_send_nullfunc(aphy, vif, avp->bssid, 0);
+- break;
+- case NL80211_IFTYPE_AP:
+- /* Beacon transmission is re-enabled by aphy->state change */
+- break;
+- default:
+- break;
+- }
+-}
+-
+-/* caller must hold wiphy_lock */
+-static int __ath9k_wiphy_unpause(struct ath_wiphy *aphy)
+-{
+- ieee80211_iterate_active_interfaces_atomic(aphy->hw,
+- ath9k_unpause_iter, aphy);
+- aphy->state = ATH_WIPHY_ACTIVE;
+- ieee80211_wake_queues(aphy->hw);
+- return 0;
+-}
+-
+-int ath9k_wiphy_unpause(struct ath_wiphy *aphy)
+-{
+- int ret;
+- spin_lock_bh(&aphy->sc->wiphy_lock);
+- ret = __ath9k_wiphy_unpause(aphy);
+- spin_unlock_bh(&aphy->sc->wiphy_lock);
+- return ret;
+-}
+-
+-static void __ath9k_wiphy_mark_all_paused(struct ath_softc *sc)
+-{
+- int i;
+- if (sc->pri_wiphy->state != ATH_WIPHY_INACTIVE)
+- sc->pri_wiphy->state = ATH_WIPHY_PAUSED;
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (sc->sec_wiphy[i] &&
+- sc->sec_wiphy[i]->state != ATH_WIPHY_INACTIVE)
+- sc->sec_wiphy[i]->state = ATH_WIPHY_PAUSED;
+- }
+-}
+-
+-/* caller must hold wiphy_lock */
+-static void __ath9k_wiphy_pause_all(struct ath_softc *sc)
+-{
+- int i;
+- if (sc->pri_wiphy->state == ATH_WIPHY_ACTIVE)
+- __ath9k_wiphy_pause(sc->pri_wiphy);
+- for (i = 0; i < sc->num_sec_wiphy; i++) {
+- if (sc->sec_wiphy[i] &&
+- sc->sec_wiphy[i]->state == ATH_WIPHY_ACTIVE)
+- __ath9k_wiphy_pause(sc->sec_wiphy[i]);
+- }
+-}
+-
+-int ath9k_wiphy_select(struct ath_wiphy *aphy)
+-{
+- struct ath_softc *sc = aphy->sc;
+- bool now;
+-
+- spin_lock_bh(&sc->wiphy_lock);
+- if (__ath9k_wiphy_scanning(sc)) {
+- /*
+- * For now, we are using mac80211 sw scan and it expects to
+- * have full control over channel changes, so avoid wiphy
+- * scheduling during a scan. This could be optimized if the
+- * scanning control were moved into the driver.
+- */
+- spin_unlock_bh(&sc->wiphy_lock);
+- return -EBUSY;
+- }
+- if (__ath9k_wiphy_pausing(sc)) {
+- if (sc->wiphy_select_failures == 0)
+- sc->wiphy_select_first_fail = jiffies;
+- sc->wiphy_select_failures++;
+- if (time_after(jiffies, sc->wiphy_select_first_fail + HZ / 2))
+- {
+- printk(KERN_DEBUG "ath9k: Previous wiphy select timed "
+- "out; disable/enable hw to recover\n");
+- __ath9k_wiphy_mark_all_paused(sc);
+- /*
+- * TODO: this workaround to fix hardware is unlikely to
+- * be specific to virtual wiphy changes. It can happen
+- * on normal channel change, too, and as such, this
+- * should really be made more generic. For example,
+- * tricker radio disable/enable on GTT interrupt burst
+- * (say, 10 GTT interrupts received without any TX
+- * frame being completed)
+- */
+- spin_unlock_bh(&sc->wiphy_lock);
+- ath_radio_disable(sc, aphy->hw);
+- ath_radio_enable(sc, aphy->hw);
+- /* Only the primary wiphy hw is used for queuing work */
+- ieee80211_queue_work(aphy->sc->hw,
+- &aphy->sc->chan_work);
+- return -EBUSY; /* previous select still in progress */
+- }
+- spin_unlock_bh(&sc->wiphy_lock);
+- return -EBUSY; /* previous select still in progress */
+- }
+- sc->wiphy_select_failures = 0;
+-
+- /* Store the new channel */
+- sc->chan_idx = aphy->chan_idx;
+- sc->chan_is_ht = aphy->chan_is_ht;
+- sc->next_wiphy = aphy;
+-
+- __ath9k_wiphy_pause_all(sc);
+- now = !__ath9k_wiphy_pausing(aphy->sc);
+- spin_unlock_bh(&sc->wiphy_lock);
+-
+- if (now) {
+- /* Ready to request channel change immediately */
+- ieee80211_queue_work(aphy->sc->hw, &aphy->sc->chan_work);
+- }
+-
projects / openwrt.git / blobdiff