This patch just groups connection specific aggregation information
from struct aggr_info into a new structure (struct aggr_info_conn)
so that, in softAP mode, this can be used when each connected station
is made to have it's own aggregation state.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@xxxxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
---
V2 - Use aggr_reset_state() to clean up connection specific
aggr state instead of defining a new function, ath6kl_cleanup_aggr_conn().
V3 - Fix invalid pointer assignment to aggr_conn->timer.data where vif->aggr_cntxt
would not be initialized at that point in aggr_conn_init().
drivers/net/wireless/ath/ath6kl/cfg80211.c | 2 +-
drivers/net/wireless/ath/ath6kl/core.h | 11 ++-
drivers/net/wireless/ath/ath6kl/txrx.c | 166 +++++++++++++++-------------
3 files changed, 98 insertions(+), 81 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 594d246..8bf447a 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2694,7 +2694,7 @@ void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
{
- vif->aggr_cntxt = aggr_init(vif->ndev);
+ vif->aggr_cntxt = aggr_init(vif);
if (!vif->aggr_cntxt) {
ath6kl_err("failed to initialize aggr\n");
return -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index 67b22e4..1b9054f 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -242,14 +242,19 @@ struct rxtid_stats {
u32 num_bar;
};
-struct aggr_info {
+struct aggr_info_conn {
u8 aggr_sz;
u8 timer_scheduled;
struct timer_list timer;
struct net_device *dev;
struct rxtid rx_tid[NUM_OF_TIDS];
- struct sk_buff_head free_q;
struct rxtid_stats stat[NUM_OF_TIDS];
+ struct aggr_info *aggr_info;
+};
+
+struct aggr_info {
+ struct aggr_info_conn *aggr_conn;
+ struct sk_buff_head rx_amsdu_freeq;
};
struct ath6kl_wep_key {
@@ -707,7 +712,7 @@ struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
-struct aggr_info *aggr_init(struct net_device *dev);
+struct aggr_info *aggr_init(struct ath6kl_vif *vif);
void ath6kl_rx_refill(struct htc_target *target,
enum htc_endpoint_id endpoint);
void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index cb7421a..90e3187 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -819,10 +819,12 @@ static struct sk_buff *aggr_get_free_skb(struct aggr_info *p_aggr)
{
struct sk_buff *skb = NULL;
- if (skb_queue_len(&p_aggr->free_q) < (AGGR_NUM_OF_FREE_NETBUFS >> 2))
- ath6kl_alloc_netbufs(&p_aggr->free_q, AGGR_NUM_OF_FREE_NETBUFS);
+ if (skb_queue_len(&p_aggr->rx_amsdu_freeq) <
+ (AGGR_NUM_OF_FREE_NETBUFS >> 2))
+ ath6kl_alloc_netbufs(&p_aggr->rx_amsdu_freeq,
+ AGGR_NUM_OF_FREE_NETBUFS);
- skb = skb_dequeue(&p_aggr->free_q);
+ skb = skb_dequeue(&p_aggr->rx_amsdu_freeq);
return skb;
}
@@ -998,12 +1000,14 @@ static void aggr_deque_frms(struct aggr_info *p_aggr, u8 tid,
struct skb_hold_q *node;
u16 idx, idx_end, seq_end;
struct rxtid_stats *stats;
+ struct aggr_info_conn *agg_conn;
- if (!p_aggr)
+ if (!p_aggr || !p_aggr->aggr_conn)
return;
- rxtid = &p_aggr->rx_tid[tid];
- stats = &p_aggr->stat[tid];
+ agg_conn = p_aggr->aggr_conn;
+ rxtid = &agg_conn->rx_tid[tid];
+ stats = &agg_conn->stat[tid];
idx = AGGR_WIN_IDX(rxtid->seq_next, rxtid->hold_q_sz);
@@ -1048,7 +1052,7 @@ static void aggr_deque_frms(struct aggr_info *p_aggr, u8 tid,
stats->num_delivered += skb_queue_len(&rxtid->q);
while ((skb = skb_dequeue(&rxtid->q)))
- ath6kl_deliver_frames_to_nw_stack(p_aggr->dev, skb);
+ ath6kl_deliver_frames_to_nw_stack(agg_conn->dev, skb);
}
static bool aggr_process_recv_frm(struct aggr_info *agg_info, u8 tid,
@@ -1062,9 +1066,10 @@ static bool aggr_process_recv_frm(struct aggr_info *agg_info, u8 tid,
u16 idx, st, cur, end;
bool is_queued = false;
u16 extended_end;
+ struct aggr_info_conn *agg_conn = agg_info->aggr_conn;
- rxtid = &agg_info->rx_tid[tid];
- stats = &agg_info->stat[tid];
+ rxtid = &agg_conn->rx_tid[tid];
+ stats = &agg_conn->stat[tid];
stats->num_into_aggr++;
@@ -1074,7 +1079,7 @@ static bool aggr_process_recv_frm(struct aggr_info *agg_info, u8 tid,
is_queued = true;
stats->num_amsdu++;
while ((skb = skb_dequeue(&rxtid->q)))
- ath6kl_deliver_frames_to_nw_stack(agg_info->dev,
+ ath6kl_deliver_frames_to_nw_stack(agg_conn->dev,
skb);
}
return is_queued;
@@ -1152,7 +1157,7 @@ static bool aggr_process_recv_frm(struct aggr_info *agg_info, u8 tid,
aggr_deque_frms(agg_info, tid, 0, 1);
- if (agg_info->timer_scheduled)
+ if (agg_conn->timer_scheduled)
rxtid->progress = true;
else
for (idx = 0 ; idx < rxtid->hold_q_sz; idx++) {
@@ -1163,8 +1168,8 @@ static bool aggr_process_recv_frm(struct aggr_info *agg_info, u8 tid,
* the frame doesn't remain stuck
* forever.
*/
- agg_info->timer_scheduled = true;
- mod_timer(&agg_info->timer,
+ agg_conn->timer_scheduled = true;
+ mod_timer(&agg_conn->timer,
(jiffies +
HZ * (AGGR_RX_TIMEOUT) / 1000));
rxtid->progress = false;
@@ -1525,13 +1530,13 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
static void aggr_timeout(unsigned long arg)
{
u8 i, j;
- struct aggr_info *p_aggr = (struct aggr_info *) arg;
+ struct aggr_info_conn *aggr_conn = (struct aggr_info_conn *) arg;
struct rxtid *rxtid;
struct rxtid_stats *stats;
for (i = 0; i < NUM_OF_TIDS; i++) {
- rxtid = &p_aggr->rx_tid[i];
- stats = &p_aggr->stat[i];
+ rxtid = &aggr_conn->rx_tid[i];
+ stats = &aggr_conn->stat[i];
if (!rxtid->aggr || !rxtid->timer_mon || rxtid->progress)
continue;
@@ -1542,18 +1547,18 @@ static void aggr_timeout(unsigned long arg)
rxtid->seq_next,
((rxtid->seq_next + rxtid->hold_q_sz-1) &
ATH6KL_MAX_SEQ_NO));
- aggr_deque_frms(p_aggr, i, 0, 0);
+ aggr_deque_frms(aggr_conn->aggr_info, i, 0, 0);
}
- p_aggr->timer_scheduled = false;
+ aggr_conn->timer_scheduled = false;
for (i = 0; i < NUM_OF_TIDS; i++) {
- rxtid = &p_aggr->rx_tid[i];
+ rxtid = &aggr_conn->rx_tid[i];
if (rxtid->aggr && rxtid->hold_q) {
for (j = 0; j < rxtid->hold_q_sz; j++) {
if (rxtid->hold_q[j].skb) {
- p_aggr->timer_scheduled = true;
+ aggr_conn->timer_scheduled = true;
rxtid->timer_mon = true;
rxtid->progress = false;
break;
@@ -1565,24 +1570,24 @@ static void aggr_timeout(unsigned long arg)
}
}
- if (p_aggr->timer_scheduled)
- mod_timer(&p_aggr->timer,
+ if (aggr_conn->timer_scheduled)
+ mod_timer(&aggr_conn->timer,
jiffies + msecs_to_jiffies(AGGR_RX_TIMEOUT));
}
-static void aggr_delete_tid_state(struct aggr_info *p_aggr, u8 tid)
+static void aggr_delete_tid_state(struct aggr_info_conn *aggr_conn, u8 tid)
{
struct rxtid *rxtid;
struct rxtid_stats *stats;
- if (!p_aggr || tid >= NUM_OF_TIDS)
+ if (!aggr_conn || tid >= NUM_OF_TIDS)
return;
- rxtid = &p_aggr->rx_tid[tid];
- stats = &p_aggr->stat[tid];
+ rxtid = &aggr_conn->rx_tid[tid];
+ stats = &aggr_conn->stat[tid];
if (rxtid->aggr)
- aggr_deque_frms(p_aggr, tid, 0, 0);
+ aggr_deque_frms(aggr_conn->aggr_info, tid, 0, 0);
rxtid->aggr = false;
rxtid->progress = false;
@@ -1601,22 +1606,25 @@ void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no,
u8 win_sz)
{
struct aggr_info *p_aggr = vif->aggr_cntxt;
+ struct aggr_info_conn *aggr_conn;
struct rxtid *rxtid;
struct rxtid_stats *stats;
u16 hold_q_size;
- if (!p_aggr)
+ if (!p_aggr || !p_aggr->aggr_conn)
return;
- rxtid = &p_aggr->rx_tid[tid];
- stats = &p_aggr->stat[tid];
+ aggr_conn = p_aggr->aggr_conn;
+
+ rxtid = &aggr_conn->rx_tid[tid];
+ stats = &aggr_conn->stat[tid];
if (win_sz < AGGR_WIN_SZ_MIN || win_sz > AGGR_WIN_SZ_MAX)
ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: win_sz %d, tid %d\n",
__func__, win_sz, tid);
if (rxtid->aggr)
- aggr_delete_tid_state(p_aggr, tid);
+ aggr_delete_tid_state(aggr_conn, tid);
rxtid->seq_next = seq_no;
hold_q_size = TID_WINDOW_SZ(win_sz) * sizeof(struct skb_hold_q);
@@ -1632,31 +1640,23 @@ void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no,
rxtid->aggr = true;
}
-struct aggr_info *aggr_init(struct net_device *dev)
+static void aggr_conn_init(struct ath6kl_vif *vif, struct aggr_info *aggr_info,
+ struct aggr_info_conn *aggr_conn)
{
- struct aggr_info *p_aggr = NULL;
struct rxtid *rxtid;
u8 i;
- p_aggr = kzalloc(sizeof(struct aggr_info), GFP_KERNEL);
- if (!p_aggr) {
- ath6kl_err("failed to alloc memory for aggr_node\n");
- return NULL;
- }
-
- p_aggr->aggr_sz = AGGR_SZ_DEFAULT;
- p_aggr->dev = dev;
- init_timer(&p_aggr->timer);
- p_aggr->timer.function = aggr_timeout;
- p_aggr->timer.data = (unsigned long) p_aggr;
-
- p_aggr->timer_scheduled = false;
- skb_queue_head_init(&p_aggr->free_q);
+ aggr_conn->aggr_sz = AGGR_SZ_DEFAULT;
+ aggr_conn->dev = vif->ndev;
+ init_timer(&aggr_conn->timer);
+ aggr_conn->timer.function = aggr_timeout;
+ aggr_conn->timer.data = (unsigned long) aggr_conn;
+ aggr_conn->aggr_info = aggr_info;
- ath6kl_alloc_netbufs(&p_aggr->free_q, AGGR_NUM_OF_FREE_NETBUFS);
+ aggr_conn->timer_scheduled = false;
for (i = 0; i < NUM_OF_TIDS; i++) {
- rxtid = &p_aggr->rx_tid[i];
+ rxtid = &aggr_conn->rx_tid[i];
rxtid->aggr = false;
rxtid->progress = false;
rxtid->timer_mon = false;
@@ -1664,6 +1664,30 @@ struct aggr_info *aggr_init(struct net_device *dev)
spin_lock_init(&rxtid->lock);
}
+}
+
+struct aggr_info *aggr_init(struct ath6kl_vif *vif)
+{
+ struct aggr_info *p_aggr = NULL;
+
+ p_aggr = kzalloc(sizeof(struct aggr_info), GFP_KERNEL);
+ if (!p_aggr) {
+ ath6kl_err("failed to alloc memory for aggr_node\n");
+ return NULL;
+ }
+
+ p_aggr->aggr_conn = kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL);
+ if (!p_aggr->aggr_conn) {
+ ath6kl_err("failed to alloc memory for connection specific aggr info\n");
+ kfree(p_aggr);
+ return NULL;
+ }
+
+ aggr_conn_init(vif, p_aggr, p_aggr->aggr_conn);
+
+ skb_queue_head_init(&p_aggr->rx_amsdu_freeq);
+ ath6kl_alloc_netbufs(&p_aggr->rx_amsdu_freeq, AGGR_NUM_OF_FREE_NETBUFS);
+
return p_aggr;
}
@@ -1671,27 +1695,32 @@ void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid)
{
struct aggr_info *p_aggr = vif->aggr_cntxt;
struct rxtid *rxtid;
+ struct aggr_info_conn *aggr_conn;
- if (!p_aggr)
+ if (!p_aggr || !p_aggr->aggr_conn)
return;
- rxtid = &p_aggr->rx_tid[tid];
+ aggr_conn = p_aggr->aggr_conn;
+ rxtid = &aggr_conn->rx_tid[tid];
if (rxtid->aggr)
- aggr_delete_tid_state(p_aggr, tid);
+ aggr_delete_tid_state(aggr_conn, tid);
}
void aggr_reset_state(struct aggr_info *aggr_info)
{
u8 tid;
- if (aggr_info->timer_scheduled) {
- del_timer(&aggr_info->timer);
- aggr_info->timer_scheduled = false;
+ if (!aggr_info || !aggr_info->aggr_conn)
+ return;
+
+ if (aggr_info->aggr_conn->timer_scheduled) {
+ del_timer(&aggr_info->aggr_conn->timer);
+ aggr_info->aggr_conn->timer_scheduled = false;
}
for (tid = 0; tid < NUM_OF_TIDS; tid++)
- aggr_delete_tid_state(aggr_info, tid);
+ aggr_delete_tid_state(aggr_info->aggr_conn, tid);
}
/* clean up our amsdu buffer list */
@@ -1718,28 +1747,11 @@ void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar)
void aggr_module_destroy(struct aggr_info *aggr_info)
{
- struct rxtid *rxtid;
- u8 i, k;
-
- if (!aggr_info)
+ if (!aggr_info || !aggr_info->aggr_conn)
return;
- if (aggr_info->timer_scheduled) {
- del_timer(&aggr_info->timer);
- aggr_info->timer_scheduled = false;
- }
-
- for (i = 0; i < NUM_OF_TIDS; i++) {
- rxtid = &aggr_info->rx_tid[i];
- if (rxtid->hold_q) {
- for (k = 0; k < rxtid->hold_q_sz; k++)
- dev_kfree_skb(rxtid->hold_q[k].skb);
- kfree(rxtid->hold_q);
- }
-
- skb_queue_purge(&rxtid->q);
- }
-
- skb_queue_purge(&aggr_info->free_q);
+ aggr_reset_state(aggr_info);
+ skb_queue_purge(&aggr_info->rx_amsdu_freeq);
+ kfree(aggr_info->aggr_conn);
kfree(aggr_info);
}
--
1.7.0.4
--
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