adapter->tx_lock_flag)
break;
- if (adapter->scan_processing || adapter->data_sent ||
+ if ((adapter->scan_processing &&
+ !adapter->scan_delay_cnt) || adapter->data_sent ||
mwifiex_wmm_lists_empty(adapter)) {
if (adapter->cmd_sent || adapter->curr_cmd ||
(!is_command_pending(adapter)))
}
}
- if (!adapter->scan_processing && !adapter->data_sent &&
- !mwifiex_wmm_lists_empty(adapter)) {
+ if ((!adapter->scan_processing || adapter->scan_delay_cnt) &&
+ !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
mwifiex_wmm_process_tx(adapter);
if (adapter->hs_activated) {
adapter->is_hs_configured = false;
mwifiex_shutdown_drv(adapter);
return ret;
}
+EXPORT_SYMBOL_GPL(mwifiex_main_process);
/*
* This function frees the adapter structure.
}
/*
- * This function initializes the hardware and firmware.
+ * This function gets firmware and initializes it.
*
* The main initialization steps followed are -
* - Download the correct firmware to card
- * - Allocate and initialize the adapter structure
- * - Initialize the private structures
* - Issue the init commands to firmware
*/
-static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter)
+static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
{
- int ret, err;
+ int ret;
+ char fmt[64];
+ struct mwifiex_private *priv;
+ struct mwifiex_adapter *adapter = context;
struct mwifiex_fw_image fw;
- memset(&fw, 0, sizeof(struct mwifiex_fw_image));
-
- err = request_firmware(&adapter->firmware, adapter->fw_name,
- adapter->dev);
- if (err < 0) {
- dev_err(adapter->dev, "request_firmware() returned"
- " error code %#x\n", err);
- ret = -1;
+ if (!firmware) {
+ dev_err(adapter->dev,
+ "Failed to get firmware %s\n", adapter->fw_name);
goto done;
}
+
+ memset(&fw, 0, sizeof(struct mwifiex_fw_image));
+ adapter->firmware = firmware;
fw.fw_buf = (u8 *) adapter->firmware->data;
fw.fw_len = adapter->firmware->size;
/* Wait for mwifiex_init to complete */
wait_event_interruptible(adapter->init_wait_q,
adapter->init_wait_q_woken);
- if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) {
- ret = -1;
+ if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
goto done;
+
+ priv = adapter->priv[0];
+ if (mwifiex_register_cfg80211(priv) != 0) {
+ dev_err(adapter->dev, "cannot register with cfg80211\n");
+ goto err_init_fw;
+ }
+
+ rtnl_lock();
+ /* Create station interface by default */
+ if (!mwifiex_add_virtual_intf(priv->wdev->wiphy, "mlan%d",
+ NL80211_IFTYPE_STATION, NULL, NULL)) {
+ dev_err(adapter->dev, "cannot create default STA interface\n");
+ goto err_add_intf;
}
- ret = 0;
+ rtnl_unlock();
+ mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
+ dev_notice(adapter->dev, "driver_version = %s\n", fmt);
+ goto done;
+
+err_add_intf:
+ mwifiex_del_virtual_intf(priv->wdev->wiphy, priv->netdev);
+ rtnl_unlock();
+err_init_fw:
+ pr_debug("info: %s: unregister device\n", __func__);
+ adapter->if_ops.unregister_dev(adapter);
done:
- if (adapter->firmware)
- release_firmware(adapter->firmware);
- if (ret)
- ret = -1;
- return ret;
+ release_firmware(adapter->firmware);
+ complete(&adapter->fw_load);
+ return;
}
/*
- * This function fills a driver buffer.
- *
- * The function associates a given SKB with the provided driver buffer
- * and also updates some of the SKB parameters, including IP header,
- * priority and timestamp.
+ * This function initializes the hardware and gets firmware.
*/
-static void
-mwifiex_fill_buffer(struct sk_buff *skb)
+static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter)
{
- struct ethhdr *eth;
- struct iphdr *iph;
- struct timeval tv;
- u8 tid = 0;
-
- eth = (struct ethhdr *) skb->data;
- switch (eth->h_proto) {
- case __constant_htons(ETH_P_IP):
- iph = ip_hdr(skb);
- tid = IPTOS_PREC(iph->tos);
- pr_debug("data: packet type ETH_P_IP: %04x, tid=%#x prio=%#x\n",
- eth->h_proto, tid, skb->priority);
- break;
- case __constant_htons(ETH_P_ARP):
- pr_debug("data: ARP packet: %04x\n", eth->h_proto);
- default:
- break;
- }
-/* Offset for TOS field in the IP header */
-#define IPTOS_OFFSET 5
- tid = (tid >> IPTOS_OFFSET);
- skb->priority = tid;
- /* Record the current time the packet was queued; used to
- determine the amount of time the packet was queued in
- the driver before it was sent to the firmware.
- The delay is then sent along with the packet to the
- firmware for aggregate delay calculation for stats and
- MSDU lifetime expiry.
- */
- do_gettimeofday(&tv);
- skb->tstamp = timeval_to_ktime(tv);
+ int ret;
+
+ const struct firmware *fw;
+
+ init_completion(&adapter->fw_load);
+ ret = request_firmware(&fw, adapter->fw_name, adapter->dev);
+ if (ret < 0)
+ dev_err(adapter->dev,
+ "request_firmware() returned error %d\n", ret);
+ else
+ mwifiex_fw_dpc(fw, adapter);
+ return ret;
}
/*
static int
mwifiex_close(struct net_device *dev)
{
+ struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+
+ if (priv->scan_request) {
+ dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n");
+ cfg80211_scan_done(priv->scan_request, 1);
+ priv->scan_request = NULL;
+ priv->scan_aborting = true;
+ }
+
+ return 0;
+}
+
+/*
+ * Add buffer into wmm tx queue and queue work to transmit it.
+ */
+int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
+{
+ struct netdev_queue *txq;
+ int index = mwifiex_1d_to_wmm_queue[skb->priority];
+
+ if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) {
+ txq = netdev_get_tx_queue(priv->netdev, index);
+ if (!netif_tx_queue_stopped(txq)) {
+ netif_tx_stop_queue(txq);
+ dev_dbg(priv->adapter->dev, "stop queue: %d\n", index);
+ }
+ }
+
+ atomic_inc(&priv->adapter->tx_pending);
+ mwifiex_wmm_add_buf_txqueue(priv, skb);
+
+ if (priv->adapter->scan_delay_cnt)
+ atomic_set(&priv->adapter->is_tx_received, true);
+
+ queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
+
return 0;
}
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct sk_buff *new_skb;
struct mwifiex_txinfo *tx_info;
+ struct timeval tv;
dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n",
jiffies, priv->bss_type, priv->bss_num);
tx_info = MWIFIEX_SKB_TXCB(skb);
tx_info->bss_num = priv->bss_num;
tx_info->bss_type = priv->bss_type;
- mwifiex_fill_buffer(skb);
-
- mwifiex_wmm_add_buf_txqueue(priv, skb);
- atomic_inc(&priv->adapter->tx_pending);
- if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) {
- mwifiex_set_trans_start(dev);
- mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
- }
+ /* Record the current time the packet was queued; used to
+ * determine the amount of time the packet was queued in
+ * the driver before it was sent to the firmware.
+ * The delay is then sent along with the packet to the
+ * firmware for aggregate delay calculation for stats and
+ * MSDU lifetime expiry.
+ */
+ do_gettimeofday(&tv);
+ skb->tstamp = timeval_to_ktime(tv);
- queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
+ mwifiex_queue_tx_pkt(priv, skb);
return 0;
}
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
- dev_err(priv->adapter->dev, "%lu : Tx timeout, bss_type-num = %d-%d\n",
- jiffies, priv->bss_type, priv->bss_num);
- mwifiex_set_trans_start(dev);
priv->num_tx_timeout++;
+ priv->tx_timeout_cnt++;
+ dev_err(priv->adapter->dev,
+ "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
+ jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num);
+ mwifiex_set_trans_start(dev);
+
+ if (priv->adapter->if_ops.reg_dbg)
+ priv->adapter->if_ops.reg_dbg(priv->adapter);
+
+ if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD &&
+ priv->adapter->if_ops.card_reset) {
+ dev_err(priv->adapter->dev, "tx_timeout_cnt exceeds threshold. "
+ "Triggering card reset!\n");
+ priv->adapter->if_ops.card_reset(priv->adapter);
+ }
}
/*
return &priv->stats;
}
+static u16
+mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb)
+{
+ skb->priority = cfg80211_classify8021d(skb);
+ return mwifiex_1d_to_wmm_queue[skb->priority];
+}
+
/* Network device handlers */
static const struct net_device_ops mwifiex_netdev_ops = {
.ndo_open = mwifiex_open,
.ndo_tx_timeout = mwifiex_tx_timeout,
.ndo_get_stats = mwifiex_get_stats,
.ndo_set_rx_mode = mwifiex_set_multicast_list,
+ .ndo_select_queue = mwifiex_netdev_select_wmm_queue,
};
/*
struct net_device *dev)
{
dev->netdev_ops = &mwifiex_netdev_ops;
+ dev->destructor = free_netdev;
/* Initialize private structure */
priv->current_key_index = 0;
priv->media_connected = false;
struct mwifiex_if_ops *if_ops, u8 iface_type)
{
struct mwifiex_adapter *adapter;
- char fmt[64];
- struct mwifiex_private *priv;
if (down_interruptible(sem))
goto exit_sem_err;
goto err_init_fw;
}
- priv = adapter->priv[0];
-
- if (mwifiex_register_cfg80211(priv) != 0) {
- dev_err(adapter->dev, "cannot register netdevice"
- " with cfg80211\n");
- goto err_init_fw;
- }
-
- rtnl_lock();
- /* Create station interface by default */
- if (!mwifiex_add_virtual_intf(priv->wdev->wiphy, "mlan%d",
- NL80211_IFTYPE_STATION, NULL, NULL)) {
- rtnl_unlock();
- dev_err(adapter->dev, "cannot create default station"
- " interface\n");
- goto err_add_intf;
- }
-
- rtnl_unlock();
-
up(sem);
-
- mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
- dev_notice(adapter->dev, "driver_version = %s\n", fmt);
-
return 0;
-err_add_intf:
- rtnl_lock();
- mwifiex_del_virtual_intf(priv->wdev->wiphy, priv->netdev);
- rtnl_unlock();
err_init_fw:
pr_debug("info: %s: unregister device\n", __func__);
adapter->if_ops.unregister_dev(adapter);
for (i = 0; i < adapter->priv_num; i++) {
priv = adapter->priv[i];
if (priv && priv->netdev) {
- if (!netif_queue_stopped(priv->netdev))
- mwifiex_stop_net_dev_queue(priv->netdev,
- adapter);
+ mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
}
projects / cascardo / linux.git / blobdiff