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ath10k: track number of existing peers

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To not exceed number of allowed clients (AP mode), make sure to
check how many of them are already on the peers list.

10.X firmware support up to 127 peers, non-AP centric firmwares 16.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Bartosz Markowski 2014-01-02 14:38:33 +01:00 committed by Kalle Valo
parent cdf074099b
commit 0e759f363e
3 changed files with 29 additions and 3 deletions
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3
drivers/net/wireless/ath/ath10k/core.h
View File

@ -432,6 +432,9 @@ struct ath10k {
struct list_head peers;
wait_queue_head_t peer_mapping_wq;
/* number of created peers; protected by data_lock */
int num_peers;
struct work_struct offchan_tx_work;
struct sk_buff_head offchan_tx_queue;
struct completion offchan_tx_completed;

1
drivers/net/wireless/ath/ath10k/hw.h
View File

@ -115,6 +115,7 @@ enum ath10k_mcast2ucast_mode {
#define TARGET_10X_MAC_AGGR_DELIM 0
#define TARGET_10X_AST_SKID_LIMIT 16
#define TARGET_10X_NUM_PEERS (128 + (TARGET_10X_NUM_VDEVS))
#define TARGET_10X_NUM_PEERS_MAX 128
#define TARGET_10X_NUM_OFFLOAD_PEERS 0
#define TARGET_10X_NUM_OFFLOAD_REORDER_BUFS 0
#define TARGET_10X_NUM_PEER_KEYS 2

28
drivers/net/wireless/ath/ath10k/mac.c
View File

@ -332,6 +332,9 @@ static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
ath10k_warn("Failed to wait for created wmi peer: %i\n", ret);
return ret;
}
spin_lock_bh(&ar->data_lock);
ar->num_peers++;
spin_unlock_bh(&ar->data_lock);
return 0;
}
@ -377,6 +380,10 @@ static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
if (ret)
return ret;
spin_lock_bh(&ar->data_lock);
ar->num_peers--;
spin_unlock_bh(&ar->data_lock);
return 0;
}
@ -396,6 +403,7 @@ static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
list_del(&peer->list);
kfree(peer);
ar->num_peers--;
}
spin_unlock_bh(&ar->data_lock);
}
@ -411,6 +419,7 @@ static void ath10k_peer_cleanup_all(struct ath10k *ar)
list_del(&peer->list);
kfree(peer);
}
ar->num_peers = 0;
spin_unlock_bh(&ar->data_lock);
}
@ -2849,6 +2858,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
{
struct ath10k *ar = hw->priv;
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
int max_num_peers;
int ret = 0;
mutex_lock(&ar->conf_mutex);
@ -2859,9 +2869,21 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
/*
* New station addition.
*/
if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
max_num_peers = TARGET_10X_NUM_PEERS_MAX - 1;
else
max_num_peers = TARGET_NUM_PEERS;
if (ar->num_peers >= max_num_peers) {
ath10k_warn("Number of peers exceeded: peers number %d (max peers %d)\n",
ar->num_peers, max_num_peers);
ret = -ENOBUFS;
goto exit;
}
ath10k_dbg(ATH10K_DBG_MAC,
"mac vdev %d peer create %pM (new sta)\n",
arvif->vdev_id, sta->addr);
"mac vdev %d peer create %pM (new sta) num_peers %d\n",
arvif->vdev_id, sta->addr, ar->num_peers);
ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
if (ret)
@ -2911,7 +2933,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_warn("Failed to disassociate station: %pM\n",
sta->addr);
}
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}