if (res)
return res;
- netif_start_queue(local->mdev);
+ netif_tx_start_all_queues(local->mdev);
return 0;
}
queue_work(local->hw.workqueue, &ifsta->work);
}
- netif_start_queue(dev);
+ netif_tx_start_all_queues(dev);
return 0;
err_del_interface:
/*
* Stop TX on this interface first.
*/
- netif_stop_queue(dev);
+ netif_tx_stop_all_queues(dev);
/*
* Now delete all active aggregation sessions.
int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct netdev_queue *txq;
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
u16 start_seq_num = 0;
(unsigned long)&sta->timer_to_tid[tid];
init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
- /* ensure that TX flow won't interrupt us
- * until the end of the call to requeue function */
- txq = netdev_get_tx_queue(local->mdev, 0);
- spin_lock_bh(&txq->lock);
-
/* create a new queue for this aggregation */
ret = ieee80211_ht_agg_queue_add(local, sta, tid);
/* No need to requeue the packets in the agg queue, since we
* held the tx lock: no packet could be enqueued to the newly
* allocated queue */
- ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
+ ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "BA request denied - HW unavailable for"
" tid %d\n", tid);
/* Will put all the packets in the new SW queue */
ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
- spin_unlock_bh(&txq->lock);
spin_unlock_bh(&sta->lock);
/* send an addBA request */
err_unlock_queue:
kfree(sta->ampdu_mlme.tid_tx[tid]);
sta->ampdu_mlme.tid_tx[tid] = NULL;
- spin_unlock_bh(&txq->lock);
ret = -EBUSY;
err_unlock_sta:
spin_unlock_bh(&sta->lock);
void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct netdev_queue *txq;
struct sta_info *sta;
u8 *state;
int agg_queue;
state = &sta->ampdu_mlme.tid_state_tx[tid];
/* NOTE: no need to use sta->lock in this state check, as
- * ieee80211_stop_tx_ba_session will let only
- * one stop call to pass through per sta/tid */
+ * ieee80211_stop_tx_ba_session will let only one stop call to
+ * pass through per sta/tid
+ */
if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
agg_queue = sta->tid_to_tx_q[tid];
- /* avoid ordering issues: we are the only one that can modify
- * the content of the qdiscs */
- txq = netdev_get_tx_queue(local->mdev, 0);
- spin_lock_bh(&txq->lock);
- /* remove the queue for this aggregation */
ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
- spin_unlock_bh(&txq->lock);
- /* we just requeued the all the frames that were in the removed
- * queue, and since we might miss a softirq we do netif_schedule_queue.
- * ieee80211_wake_queue is not used here as this queue is not
- * necessarily stopped */
- netif_schedule_queue(txq);
+ /* We just requeued the all the frames that were in the
+ * removed queue, and since we might miss a softirq we do
+ * netif_schedule_queue. ieee80211_wake_queue is not used
+ * here as this queue is not necessarily stopped
+ */
+ netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
spin_lock_bh(&sta->lock);
*state = HT_AGG_STATE_IDLE;
sta->ampdu_mlme.addba_req_num[tid] = 0;
* We use the number of queues for feature tests (QoS, HT) internally
* so restrict them appropriately.
*/
-#ifdef CONFIG_MAC80211_QOS
if (hw->queues > IEEE80211_MAX_QUEUES)
hw->queues = IEEE80211_MAX_QUEUES;
if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES)
hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES;
if (hw->queues < 4)
hw->ampdu_queues = 0;
-#else
- hw->queues = 1;
- hw->ampdu_queues = 0;
-#endif
mdev = alloc_netdev_mq(sizeof(struct wireless_dev),
"wmaster%d", ether_setup,
goto fail_wep;
}
- ieee80211_install_qdisc(local->mdev);
+ local->mdev->select_queue = ieee80211_select_queue;
/* add one default STA interface */
result = ieee80211_if_add(local, "wlan%d", NULL,
ret = rc80211_pid_init();
if (ret)
- goto out;
-
- ret = ieee80211_wme_register();
- if (ret) {
- printk(KERN_DEBUG "ieee80211_init: failed to "
- "initialize WME (err=%d)\n", ret);
- goto out_cleanup_pid;
- }
+ return ret;
ieee80211_debugfs_netdev_init();
return 0;
-
- out_cleanup_pid:
- rc80211_pid_exit();
- out:
- return ret;
}
static void __exit ieee80211_exit(void)
if (mesh_allocated)
ieee80211s_stop();
- ieee80211_wme_unregister();
ieee80211_debugfs_netdev_exit();
}
#include "ieee80211_i.h"
#include "wme.h"
-/* maximum number of hardware queues we support. */
-#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
-/* current number of hardware queues we support. */
-#define QD_NUM(hw) ((hw)->queues + (hw)->ampdu_queues)
-
-/*
- * Default mapping in classifier to work with default
+/* Default mapping in classifier to work with default
* queue setup.
*/
const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
-struct ieee80211_sched_data
-{
- unsigned long qdisc_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
- struct tcf_proto *filter_list;
- struct Qdisc *queues[QD_MAX_QUEUES];
- struct sk_buff_head requeued[QD_MAX_QUEUES];
-};
-
static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0};
-/* given a data frame determine the 802.1p/1d tag to use */
-static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
+/* Given a data frame determine the 802.1p/1d tag to use. */
+static unsigned int classify_1d(struct sk_buff *skb)
{
- struct iphdr *ip;
- int dscp;
- int offset;
-
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct tcf_result res = { -1, 0 };
-
- /* if there is a user set filter list, call out to that */
- if (q->filter_list) {
- tc_classify(skb, q->filter_list, &res);
- if (res.class != -1)
- return res.class;
- }
+ unsigned int dscp;
/* skb->priority values from 256->263 are magic values to
- * directly indicate a specific 802.1d priority.
- * This is used to allow 802.1d priority to be passed directly in
- * from VLAN tags, etc. */
+ * directly indicate a specific 802.1d priority. This is used
+ * to allow 802.1d priority to be passed directly in from VLAN
+ * tags, etc.
+ */
if (skb->priority >= 256 && skb->priority <= 263)
return skb->priority - 256;
- /* check there is a valid IP header present */
- offset = ieee80211_get_hdrlen_from_skb(skb);
- if (skb->len < offset + sizeof(llc_ip_hdr) + sizeof(*ip) ||
- memcmp(skb->data + offset, llc_ip_hdr, sizeof(llc_ip_hdr)))
- return 0;
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ dscp = ip_hdr(skb)->tos & 0xfc;
+ break;
- ip = (struct iphdr *) (skb->data + offset + sizeof(llc_ip_hdr));
+ default:
+ return 0;
+ }
- dscp = ip->tos & 0xfc;
if (dscp & 0x1c)
return 0;
return dscp >> 5;
}
-static inline int wme_downgrade_ac(struct sk_buff *skb)
+static int wme_downgrade_ac(struct sk_buff *skb)
{
switch (skb->priority) {
case 6:
}
-/* positive return value indicates which queue to use
- * negative return value indicates to drop the frame */
-static int classify80211(struct sk_buff *skb, struct Qdisc *qd)
+/* Indicate which queue to use. */
+static u16 classify80211(struct sk_buff *skb, struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
if (!ieee80211_is_data(hdr->frame_control)) {
/* use the data classifier to determine what 802.1d tag the
* data frame has */
- skb->priority = classify_1d(skb, qd);
+ skb->priority = classify_1d(skb);
/* in case we are a client verify acm is not set for this ac */
while (unlikely(local->wmm_acm & BIT(skb->priority))) {
if (wme_downgrade_ac(skb)) {
- /* No AC with lower priority has acm=0, drop packet. */
- return -1;
+ /* The old code would drop the packet in this
+ * case.
+ */
+ return 0;
}
}
return ieee802_1d_to_ac[skb->priority];
}
-
-static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
+u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct Qdisc *qdisc;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct sta_info *sta;
- int err, queue;
+ u16 queue;
u8 tid;
+ queue = classify80211(skb, dev);
+ if (unlikely(queue >= local->hw.queues))
+ queue = local->hw.queues - 1;
+
if (info->flags & IEEE80211_TX_CTL_REQUEUE) {
- queue = skb_get_queue_mapping(skb);
rcu_read_lock();
sta = sta_info_get(local, hdr->addr1);
tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
if (sta) {
+ struct ieee80211_hw *hw = &local->hw;
int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < QD_NUM(hw)) &&
- test_bit(ampdu_queue, q->qdisc_pool)) {
+
+ if ((ampdu_queue < ieee80211_num_queues(hw)) &&
+ test_bit(ampdu_queue, local->queue_pool)) {
queue = ampdu_queue;
info->flags |= IEEE80211_TX_CTL_AMPDU;
} else {
}
}
rcu_read_unlock();
- skb_queue_tail(&q->requeued[queue], skb);
- qd->q.qlen++;
- return 0;
- }
-
- queue = classify80211(skb, qd);
- if (unlikely(queue >= local->hw.queues))
- queue = local->hw.queues - 1;
+ return queue;
+ }
- /* now we know the 1d priority, fill in the QoS header if there is one
+ /* Now we know the 1d priority, fill in the QoS header if
+ * there is one.
*/
if (ieee80211_is_data_qos(hdr->frame_control)) {
u8 *p = ieee80211_get_qos_ctl(hdr);
sta = sta_info_get(local, hdr->addr1);
if (sta) {
int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < QD_NUM(hw)) &&
- test_bit(ampdu_queue, q->qdisc_pool)) {
+ struct ieee80211_hw *hw = &local->hw;
+
+ if ((ampdu_queue < ieee80211_num_queues(hw)) &&
+ test_bit(ampdu_queue, local->queue_pool)) {
queue = ampdu_queue;
info->flags |= IEEE80211_TX_CTL_AMPDU;
} else {
rcu_read_unlock();
}
- if (unlikely(queue < 0)) {
- kfree_skb(skb);
- err = NET_XMIT_DROP;
- } else {
- skb_set_queue_mapping(skb, queue);
- qdisc = q->queues[queue];
- err = qdisc->enqueue(skb, qdisc);
- if (err == NET_XMIT_SUCCESS) {
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
- return NET_XMIT_SUCCESS;
- }
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-/* TODO: clean up the cases where master_hard_start_xmit
- * returns non 0 - it shouldn't ever do that. Once done we
- * can remove this function */
-static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct Qdisc *qdisc;
- int err;
-
- /* we recorded which queue to use earlier! */
- qdisc = q->queues[skb_get_queue_mapping(skb)];
-
- if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
- qd->q.qlen++;
- return 0;
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qdisc_dev(qd);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sk_buff *skb;
- struct Qdisc *qdisc;
- int queue;
-
- /* check all the h/w queues in numeric/priority order */
- for (queue = 0; queue < QD_NUM(hw); queue++) {
- /* see if there is room in this hardware queue */
- if (__netif_subqueue_stopped(local->mdev, queue) ||
- !test_bit(queue, q->qdisc_pool))
- continue;
-
- /* there is space - try and get a frame */
- skb = skb_dequeue(&q->requeued[queue]);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
-
- qdisc = q->queues[queue];
- skb = qdisc->dequeue(qdisc);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
- }
- /* returning a NULL here when all the h/w queues are full means we
- * never need to call netif_stop_queue in the driver */
- return NULL;
-}
-
-
-static void wme_qdiscop_reset(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- /* QUESTION: should we have some hardware flush functionality here? */
-
- for (queue = 0; queue < QD_NUM(hw); queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_reset(q->queues[queue]);
- }
- qd->q.qlen = 0;
-}
-
-
-static void wme_qdiscop_destroy(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- tcf_destroy_chain(&q->filter_list);
-
- for (queue = 0; queue < QD_NUM(hw); queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_destroy(q->queues[queue]);
- q->queues[queue] = &noop_qdisc;
- }
-}
-
-
-/* called whenever parameters are updated on existing qdisc */
-static int wme_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt)
-{
- return 0;
-}
-
-
-/* called during initial creation of qdisc on device */
-static int wme_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qdisc_dev(qd);
- struct ieee80211_local *local;
- struct ieee80211_hw *hw;
- int err = 0, i;
-
- /* check that device is a mac80211 device */
- if (!dev->ieee80211_ptr ||
- dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
- return -EINVAL;
-
- local = wdev_priv(dev->ieee80211_ptr);
- hw = &local->hw;
-
- /* only allow on master dev */
- if (dev != local->mdev)
- return -EINVAL;
-
- /* ensure that we are root qdisc */
- if (qd->parent != TC_H_ROOT)
- return -EINVAL;
-
- if (qd->flags & TCQ_F_INGRESS)
- return -EINVAL;
-
- /* if options were passed in, set them */
- if (opt)
- err = wme_qdiscop_tune(qd, opt);
-
- /* create child queues */
- for (i = 0; i < QD_NUM(hw); i++) {
- skb_queue_head_init(&q->requeued[i]);
- q->queues[i] = qdisc_create_dflt(qdisc_dev(qd), qd->dev_queue,
- &pfifo_qdisc_ops,
- qd->handle);
- if (!q->queues[i]) {
- q->queues[i] = &noop_qdisc;
- printk(KERN_ERR "%s child qdisc %i creation failed\n",
- dev->name, i);
- }
- }
-
- /* non-aggregation queues: reserve/mark as used */
- for (i = 0; i < local->hw.queues; i++)
- set_bit(i, q->qdisc_pool);
-
- return err;
-}
-
-static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
- return -1;
-}
-
-
-static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
- struct Qdisc *new, struct Qdisc **old)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= QD_NUM(hw))
- return -EINVAL;
-
- if (!new)
- new = &noop_qdisc;
-
- sch_tree_lock(qd);
- *old = q->queues[queue];
- q->queues[queue] = new;
- qdisc_reset(*old);
- sch_tree_unlock(qd);
-
- return 0;
-}
-
-
-static struct Qdisc *
-wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= QD_NUM(hw))
- return NULL;
-
- return q->queues[queue];
-}
-
-
-static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
-{
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = TC_H_MIN(classid);
-
- if (queue - 1 >= QD_NUM(hw))
- return 0;
-
return queue;
}
-
-static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
- u32 classid)
-{
- return wme_classop_get(qd, classid);
-}
-
-
-static void wme_classop_put(struct Qdisc *q, unsigned long cl)
-{
-}
-
-
-static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
- struct nlattr **tca, unsigned long *arg)
-{
- unsigned long cl = *arg;
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > QD_NUM(hw))
- return -ENOENT;
-
- /* TODO: put code to program hardware queue parameters here,
- * to allow programming from tc command line */
-
- return 0;
-}
-
-
-/* we don't support deleting hardware queues
- * when we add WMM-SA support - TSPECs may be deleted here */
-static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
-{
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > QD_NUM(hw))
- return -ENOENT;
- return 0;
-}
-
-
-static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
- struct sk_buff *skb, struct tcmsg *tcm)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > QD_NUM(hw))
- return -ENOENT;
- tcm->tcm_handle = TC_H_MIN(cl);
- tcm->tcm_parent = qd->handle;
- tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
- return 0;
-}
-
-
-static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
-{
- struct ieee80211_local *local = wdev_priv(qdisc_dev(qd)->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- if (arg->stop)
- return;
-
- for (queue = 0; queue < QD_NUM(hw); queue++) {
- if (arg->count < arg->skip) {
- arg->count++;
- continue;
- }
- /* we should return classids for our internal queues here
- * as well as the external ones */
- if (arg->fn(qd, queue+1, arg) < 0) {
- arg->stop = 1;
- break;
- }
- arg->count++;
- }
-}
-
-
-static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
- unsigned long cl)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
-
- if (cl)
- return NULL;
-
- return &q->filter_list;
-}
-
-
-/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
- * - these are the operations on the classes */
-static const struct Qdisc_class_ops class_ops =
-{
- .graft = wme_classop_graft,
- .leaf = wme_classop_leaf,
-
- .get = wme_classop_get,
- .put = wme_classop_put,
- .change = wme_classop_change,
- .delete = wme_classop_delete,
- .walk = wme_classop_walk,
-
- .tcf_chain = wme_classop_find_tcf,
- .bind_tcf = wme_classop_bind,
- .unbind_tcf = wme_classop_put,
-
- .dump = wme_classop_dump_class,
-};
-
-
-/* queueing discipline operations */
-static struct Qdisc_ops wme_qdisc_ops __read_mostly =
-{
- .next = NULL,
- .cl_ops = &class_ops,
- .id = "ieee80211",
- .priv_size = sizeof(struct ieee80211_sched_data),
-
- .enqueue = wme_qdiscop_enqueue,
- .dequeue = wme_qdiscop_dequeue,
- .requeue = wme_qdiscop_requeue,
- .drop = NULL, /* drop not needed since we are always the root qdisc */
-
- .init = wme_qdiscop_init,
- .reset = wme_qdiscop_reset,
- .destroy = wme_qdiscop_destroy,
- .change = wme_qdiscop_tune,
-
- .dump = wme_qdiscop_dump,
-};
-
-
-void ieee80211_install_qdisc(struct net_device *dev)
-{
- struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
- struct Qdisc *qdisc;
-
- qdisc = qdisc_create_dflt(dev, txq,
- &wme_qdisc_ops, TC_H_ROOT);
- if (!qdisc) {
- printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
- return;
- }
-
- /* same handle as would be allocated by qdisc_alloc_handle() */
- qdisc->handle = 0x80010000;
-
- qdisc_lock_tree(dev);
- list_add_tail(&qdisc->list, &txq->qdisc_list);
- txq->qdisc_sleeping = qdisc;
- qdisc_unlock_tree(dev);
-}
-
-
-int ieee80211_qdisc_installed(struct net_device *dev)
-{
- struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
-
- return txq->qdisc_sleeping->ops == &wme_qdisc_ops;
-}
-
-
-int ieee80211_wme_register(void)
-{
- return register_qdisc(&wme_qdisc_ops);
-}
-
-
-void ieee80211_wme_unregister(void)
-{
- unregister_qdisc(&wme_qdisc_ops);
-}
-
int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid)
+ struct sta_info *sta, u16 tid)
{
int i;
- struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, 0);
- struct ieee80211_sched_data *q =
- qdisc_priv(txq->qdisc_sleeping);
- DECLARE_MAC_BUF(mac);
/* prepare the filter and save it for the SW queue
* matching the received HW queue */
return -EPERM;
/* try to get a Qdisc from the pool */
- for (i = local->hw.queues; i < QD_NUM(&local->hw); i++)
- if (!test_and_set_bit(i, q->qdisc_pool)) {
+ for (i = local->hw.queues; i < ieee80211_num_queues(&local->hw); i++)
+ if (!test_and_set_bit(i, local->queue_pool)) {
ieee80211_stop_queue(local_to_hw(local), i);
sta->tid_to_tx_q[tid] = i;
* on the previous queue
* since HT is strict in order */
#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
+ if (net_ratelimit()) {
+ DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "allocated aggregation queue"
" %d tid %d addr %s pool=0x%lX\n",
i, tid, print_mac(mac, sta->addr),
- q->qdisc_pool[0]);
+ local->queue_pool[0]);
+ }
#endif /* CONFIG_MAC80211_HT_DEBUG */
return 0;
}
struct sta_info *sta, u16 tid,
u8 requeue)
{
- struct ieee80211_hw *hw = &local->hw;
- struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, 0);
- struct ieee80211_sched_data *q =
- qdisc_priv(txq->qdisc_sleeping);
int agg_queue = sta->tid_to_tx_q[tid];
+ struct ieee80211_hw *hw = &local->hw;
/* return the qdisc to the pool */
- clear_bit(agg_queue, q->qdisc_pool);
- sta->tid_to_tx_q[tid] = QD_NUM(hw);
+ clear_bit(agg_queue, local->queue_pool);
+ sta->tid_to_tx_q[tid] = ieee80211_num_queues(hw);
- if (requeue)
+ if (requeue) {
ieee80211_requeue(local, agg_queue);
- else
- q->queues[agg_queue]->ops->reset(q->queues[agg_queue]);
+ } else {
+ struct netdev_queue *txq;
+
+ txq = netdev_get_tx_queue(local->mdev, agg_queue);
+
+ spin_lock_bh(&txq->lock);
+ qdisc_reset(txq->qdisc);
+ spin_unlock_bh(&txq->lock);
+ }
}
void ieee80211_requeue(struct ieee80211_local *local, int queue)
{
- struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, 0);
- struct Qdisc *root_qd = txq->qdisc_sleeping;
- struct ieee80211_sched_data *q = qdisc_priv(root_qd);
- struct Qdisc *qdisc = q->queues[queue];
- struct sk_buff *skb = NULL;
+ struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, queue);
+ struct sk_buff_head list;
+ struct Qdisc *qdisc;
u32 len;
+ rcu_read_lock_bh();
+
+ qdisc = rcu_dereference(txq->qdisc);
if (!qdisc || !qdisc->dequeue)
- return;
+ goto out_unlock;
+
+ skb_queue_head_init(&list);
+ spin_lock(&txq->lock);
for (len = qdisc->q.qlen; len > 0; len--) {
- skb = qdisc->dequeue(qdisc);
- root_qd->q.qlen--;
- /* packet will be classified again and */
- /* skb->packet_data->queue will be overridden if needed */
+ struct sk_buff *skb = qdisc->dequeue(qdisc);
+
if (skb)
- wme_qdiscop_enqueue(skb, root_qd);
+ __skb_queue_tail(&list, skb);
+ }
+ spin_unlock(&txq->lock);
+
+ for (len = list.qlen; len > 0; len--) {
+ struct sk_buff *skb = __skb_dequeue(&list);
+ u16 new_queue;
+
+ BUG_ON(!skb);
+ new_queue = ieee80211_select_queue(local->mdev, skb);
+ skb_set_queue_mapping(skb, new_queue);
+
+ txq = netdev_get_tx_queue(local->mdev, new_queue);
+
+ spin_lock(&txq->lock);
+
+ qdisc = rcu_dereference(txq->qdisc);
+ qdisc->enqueue(skb, qdisc);
+
+ spin_unlock(&txq->lock);
}
+
+out_unlock:
+ rcu_read_unlock_bh();
}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff