From 8e68d55f5e4a0444a569ecf605f482b9af0b9264 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Mon, 12 Jan 2015 14:07:27 +0200 Subject: [PATCH] ath10k: add support to send addba response This per-station debugfs entry helps to send addba response in manual mode for debugging purpose. It accepts tid and status code as input arguments. To send addba response, echo 0 25 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/ stations/XX:XX:XX:XX:XX:XX/addba_resp Signed-off-by: Rajkumar Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/debugfs_sta.c | 51 +++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/debugfs_sta.c b/drivers/net/wireless/ath/ath10k/debugfs_sta.c index 23d81a244201..31a72d41addd 100644 --- a/drivers/net/wireless/ath/ath10k/debugfs_sta.c +++ b/drivers/net/wireless/ath/ath10k/debugfs_sta.c @@ -131,10 +131,61 @@ static const struct file_operations fops_addba = { .llseek = default_llseek, }; +static ssize_t ath10k_dbg_sta_write_addba_resp(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_sta *sta = file->private_data; + struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; + struct ath10k *ar = arsta->arvif->ar; + u32 tid, status; + int ret; + char buf[64]; + + simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); + + /* make sure that buf is null terminated */ + buf[sizeof(buf) - 1] = '\0'; + + ret = sscanf(buf, "%u %u", &tid, &status); + if (ret != 2) + return -EINVAL; + + /* Valid TID values are 0 through 15 */ + if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2) + return -EINVAL; + + mutex_lock(&ar->conf_mutex); + if ((ar->state != ATH10K_STATE_ON) || + (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) { + ret = count; + goto out; + } + + ret = ath10k_wmi_addba_set_resp(ar, arsta->arvif->vdev_id, sta->addr, + tid, status); + if (ret) { + ath10k_warn(ar, "failed to send addba response: vdev_id %u peer %pM tid %u status%u\n", + arsta->arvif->vdev_id, sta->addr, tid, status); + } + ret = count; +out: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static const struct file_operations fops_addba_resp = { + .write = ath10k_dbg_sta_write_addba_resp, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir) { debugfs_create_file("aggr_mode", S_IRUGO | S_IWUSR, dir, sta, &fops_aggr_mode); debugfs_create_file("addba", S_IWUSR, dir, sta, &fops_addba); + debugfs_create_file("addba_resp", S_IWUSR, dir, sta, &fops_addba_resp); } -- 2.11.0