#include "wme.h"
/* maximum number of hardware queues we support. */
-#define TC_80211_MAX_QUEUES 16
+#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
+ * 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(TC_80211_MAX_QUEUES)];
+ unsigned long qdisc_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
struct tcf_proto *filter_list;
- struct Qdisc *queues[TC_80211_MAX_QUEUES];
- struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
+ 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};
/* positive return value indicates which queue to use
* negative return value indicates to drop the frame */
-static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
+static int classify80211(struct sk_buff *skb, struct Qdisc *qd)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
- int qos;
- /* see if frame is data or non data frame */
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
+ if (!ieee80211_is_data(hdr->frame_control)) {
/* management frames go on AC_VO queue, but are sent
* without QoS control fields */
- return IEEE80211_TX_QUEUE_DATA0;
+ return 0;
}
if (0 /* injected */) {
/* use AC from radiotap */
}
- /* is this a QoS frame? */
- qos = fc & IEEE80211_STYPE_QOS_DATA;
-
- if (!qos) {
+ if (!ieee80211_is_data_qos(hdr->frame_control)) {
skb->priority = 0; /* required for correct WPA/11i MIC */
return ieee802_1d_to_ac[skb->priority];
}
static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
struct Qdisc *qdisc;
- int err, queue;
struct sta_info *sta;
+ int err, queue;
u8 tid;
- if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
- queue = pkt_data->queue;
+ 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 & QOS_CONTROL_TAG1D_MASK;
if (sta) {
int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < local->hw.queues) &&
+ if ((ampdu_queue < QD_NUM(hw)) &&
test_bit(ampdu_queue, q->qdisc_pool)) {
queue = ampdu_queue;
- pkt_data->flags |= IEEE80211_TXPD_AMPDU;
+ info->flags |= IEEE80211_TX_CTL_AMPDU;
} else {
- pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
+ info->flags &= ~IEEE80211_TX_CTL_AMPDU;
}
}
rcu_read_unlock();
queue = classify80211(skb, qd);
+ if (unlikely(queue >= local->hw.queues))
+ queue = local->hw.queues - 1;
+
/* now we know the 1d priority, fill in the QoS header if there is one
*/
- if (WLAN_FC_IS_QOS_DATA(fc)) {
- u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ u8 *p = ieee80211_get_qos_ctl(hdr);
u8 ack_policy = 0;
tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
if (local->wifi_wme_noack_test)
ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
QOS_CONTROL_ACK_POLICY_SHIFT;
/* qos header is 2 bytes, second reserved */
- *p = ack_policy | tid;
- p++;
+ *p++ = ack_policy | tid;
*p = 0;
rcu_read_lock();
sta = sta_info_get(local, hdr->addr1);
if (sta) {
int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < local->hw.queues) &&
- test_bit(ampdu_queue, q->qdisc_pool)) {
+ if ((ampdu_queue < QD_NUM(hw)) &&
+ test_bit(ampdu_queue, q->qdisc_pool)) {
queue = ampdu_queue;
- pkt_data->flags |= IEEE80211_TXPD_AMPDU;
+ info->flags |= IEEE80211_TX_CTL_AMPDU;
} else {
- pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
+ info->flags &= ~IEEE80211_TX_CTL_AMPDU;
}
}
rcu_read_unlock();
}
- if (unlikely(queue >= local->hw.queues)) {
-#if 0
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s - queue=%d (hw does not "
- "support) -> %d\n",
- __func__, queue, local->hw.queues - 1);
- }
-#endif
- queue = local->hw.queues - 1;
- }
-
if (unlikely(queue < 0)) {
kfree_skb(skb);
err = NET_XMIT_DROP;
} else {
tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
- pkt_data->queue = (unsigned int) queue;
+ skb_set_queue_mapping(skb, queue);
qdisc = q->queues[queue];
err = qdisc->enqueue(skb, qdisc);
if (err == NET_XMIT_SUCCESS) {
static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
struct Qdisc *qdisc;
int err;
/* we recorded which queue to use earlier! */
- qdisc = q->queues[pkt_data->queue];
+ qdisc = q->queues[skb_get_queue_mapping(skb)];
if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
qd->q.qlen++;
int queue;
/* check all the h/w queues in numeric/priority order */
- for (queue = 0; queue < hw->queues; queue++) {
+ for (queue = 0; queue < QD_NUM(hw); queue++) {
/* see if there is room in this hardware queue */
- if ((test_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) ||
- (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue])) ||
- (!test_bit(queue, q->qdisc_pool)))
+ if (__netif_subqueue_stopped(local->mdev, queue) ||
+ !test_bit(queue, q->qdisc_pool))
continue;
/* there is space - try and get a frame */
/* QUESTION: should we have some hardware flush functionality here? */
- for (queue = 0; queue < hw->queues; queue++) {
+ for (queue = 0; queue < QD_NUM(hw); queue++) {
skb_queue_purge(&q->requeued[queue]);
qdisc_reset(q->queues[queue]);
}
tcf_destroy_chain(&q->filter_list);
- for (queue=0; queue < hw->queues; queue++) {
+ 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)
{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
-*/
- /* check our options block is the right size */
- /* copy any options to our local structure */
-/* Ignore options block for now - always use static mapping
- struct tc_ieee80211_qopt *qopt = nla_data(opt);
-
- if (opt->nla_len < nla_attr_size(sizeof(*qopt)))
- return -EINVAL;
- memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
-*/
return 0;
}
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct net_device *dev = qd->dev;
struct ieee80211_local *local;
- int queues;
+ struct ieee80211_hw *hw;
int err = 0, i;
/* check that device is a mac80211 device */
dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
return -EINVAL;
- /* check this device is an ieee80211 master type device */
- if (dev->type != ARPHRD_IEEE80211)
+ local = wdev_priv(dev->ieee80211_ptr);
+ hw = &local->hw;
+
+ /* only allow on master dev */
+ if (dev != local->mdev)
return -EINVAL;
- /* check that there is no qdisc currently attached to device
- * this ensures that we will be the root qdisc. (I can't find a better
- * way to test this explicitly) */
- if (dev->qdisc_sleeping != &noop_qdisc)
+ /* ensure that we are root qdisc */
+ if (qd->parent != TC_H_ROOT)
return -EINVAL;
if (qd->flags & TCQ_F_INGRESS)
return -EINVAL;
- local = wdev_priv(dev->ieee80211_ptr);
- queues = local->hw.queues;
-
/* if options were passed in, set them */
- if (opt) {
+ if (opt)
err = wme_qdiscop_tune(qd, opt);
- }
/* create child queues */
- for (i = 0; i < queues; i++) {
+ for (i = 0; i < QD_NUM(hw); i++) {
skb_queue_head_init(&q->requeued[i]);
q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
qd->handle);
}
}
- /* reserve all legacy QoS queues */
- for (i = 0; i < min(IEEE80211_TX_QUEUE_DATA4, queues); 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)
{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
- unsigned char *p = skb->tail;
- struct tc_ieee80211_qopt opt;
-
- memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
- NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
-*/ return skb->len;
-/*
-nla_put_failure:
- skb_trim(skb, p - skb->data);*/
return -1;
}
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = arg - 1;
- if (queue >= hw->queues)
+ if (queue >= QD_NUM(hw))
return -EINVAL;
if (!new)
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = arg - 1;
- if (queue >= hw->queues)
+ if (queue >= QD_NUM(hw))
return NULL;
return q->queues[queue];
struct ieee80211_hw *hw = &local->hw;
unsigned long queue = TC_H_MIN(classid);
- if (queue - 1 >= hw->queues)
+ if (queue - 1 >= QD_NUM(hw))
return 0;
return queue;
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
- if (cl - 1 > hw->queues)
+ if (cl - 1 > QD_NUM(hw))
return -ENOENT;
/* TODO: put code to program hardware queue parameters here,
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
- if (cl - 1 > hw->queues)
+ if (cl - 1 > QD_NUM(hw))
return -ENOENT;
return 0;
}
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
struct ieee80211_hw *hw = &local->hw;
- if (cl - 1 > hw->queues)
+ if (cl - 1 > QD_NUM(hw))
return -ENOENT;
tcm->tcm_handle = TC_H_MIN(cl);
tcm->tcm_parent = qd->handle;
if (arg->stop)
return;
- for (queue = 0; queue < hw->queues; queue++) {
+ for (queue = 0; queue < QD_NUM(hw); queue++) {
if (arg->count < arg->skip) {
arg->count++;
continue;
DECLARE_MAC_BUF(mac);
/* prepare the filter and save it for the SW queue
- * matching the recieved HW queue */
+ * matching the received HW queue */
+
+ if (!local->hw.ampdu_queues)
+ return -EPERM;
/* try to get a Qdisc from the pool */
- for (i = IEEE80211_TX_QUEUE_BEACON; i < local->hw.queues; i++)
+ for (i = local->hw.queues; i < QD_NUM(&local->hw); i++)
if (!test_and_set_bit(i, q->qdisc_pool)) {
ieee80211_stop_queue(local_to_hw(local), i);
sta->tid_to_tx_q[tid] = i;
struct sta_info *sta, u16 tid,
u8 requeue)
{
+ struct ieee80211_hw *hw = &local->hw;
struct ieee80211_sched_data *q =
qdisc_priv(local->mdev->qdisc_sleeping);
int agg_queue = sta->tid_to_tx_q[tid];
/* return the qdisc to the pool */
clear_bit(agg_queue, q->qdisc_pool);
- sta->tid_to_tx_q[tid] = local->hw.queues;
+ sta->tid_to_tx_q[tid] = QD_NUM(hw);
if (requeue)
ieee80211_requeue(local, agg_queue);
if (!qdisc || !qdisc->dequeue)
return;
- printk(KERN_DEBUG "requeue: qlen = %d\n", qdisc->q.qlen);
for (len = qdisc->q.qlen; len > 0; len--) {
skb = qdisc->dequeue(qdisc);
root_qd->q.qlen--;
projects / linux-2.6-omap-h63xx.git / blobdiff