1 files changed, 0 insertions, 386 deletions

diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c
deleted file mode 100644
index bf6182b64..000000000
--- a/drivers/net/wireless/mwifiex/txrx.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- * Marvell Wireless LAN device driver: generic TX/RX data handling
- *
- * Copyright (C) 2011-2014, Marvell International Ltd.
- *
- * This software file (the "File") is distributed by Marvell International
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
- * (the "License").  You may use, redistribute and/or modify this File in
- * accordance with the terms and conditions of the License, a copy of which
- * is available by writing to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
- * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
- *
- * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
- * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
- * this warranty disclaimer.
- */
-
-#include "decl.h"
-#include "ioctl.h"
-#include "util.h"
-#include "fw.h"
-#include "main.h"
-#include "wmm.h"
-
-/*
- * This function processes the received buffer.
- *
- * Main responsibility of this function is to parse the RxPD to
- * identify the correct interface this packet is headed for and
- * forwarding it to the associated handling function, where the
- * packet will be further processed and sent to kernel/upper layer
- * if required.
- */
-int mwifiex_handle_rx_packet(struct mwifiex_adapter *adapter,
-			     struct sk_buff *skb)
-{
-	struct mwifiex_private *priv =
-		mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
-	struct rxpd *local_rx_pd;
-	struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
-	int ret;
-
-	local_rx_pd = (struct rxpd *) (skb->data);
-	/* Get the BSS number from rxpd, get corresponding priv */
-	priv = mwifiex_get_priv_by_id(adapter, local_rx_pd->bss_num &
-				      BSS_NUM_MASK, local_rx_pd->bss_type);
-	if (!priv)
-		priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
-
-	if (!priv) {
-		mwifiex_dbg(adapter, ERROR,
-			    "data: priv not found. Drop RX packet\n");
-		dev_kfree_skb_any(skb);
-		return -1;
-	}
-
-	mwifiex_dbg_dump(adapter, DAT_D, "rx pkt:", skb->data,
-			 min_t(size_t, skb->len, DEBUG_DUMP_DATA_MAX_LEN));
-
-	memset(rx_info, 0, sizeof(*rx_info));
-	rx_info->bss_num = priv->bss_num;
-	rx_info->bss_type = priv->bss_type;
-
-	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
-		ret = mwifiex_process_uap_rx_packet(priv, skb);
-	else
-		ret = mwifiex_process_sta_rx_packet(priv, skb);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(mwifiex_handle_rx_packet);
-
-/*
- * This function sends a packet to device.
- *
- * It processes the packet to add the TxPD, checks condition and
- * sends the processed packet to firmware for transmission.
- *
- * On successful completion, the function calls the completion callback
- * and logs the time.
- */
-int mwifiex_process_tx(struct mwifiex_private *priv, struct sk_buff *skb,
-		       struct mwifiex_tx_param *tx_param)
-{
-	int hroom, ret = -1;
-	struct mwifiex_adapter *adapter = priv->adapter;
-	u8 *head_ptr;
-	struct txpd *local_tx_pd = NULL;
-	struct mwifiex_sta_node *dest_node;
-	struct ethhdr *hdr = (void *)skb->data;
-
-	hroom = (adapter->iface_type == MWIFIEX_USB) ? 0 : INTF_HEADER_LEN;
-
-	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) {
-		dest_node = mwifiex_get_sta_entry(priv, hdr->h_dest);
-		if (dest_node) {
-			dest_node->stats.tx_bytes += skb->len;
-			dest_node->stats.tx_packets++;
-		}
-
-		head_ptr = mwifiex_process_uap_txpd(priv, skb);
-	} else {
-		head_ptr = mwifiex_process_sta_txpd(priv, skb);
-	}
-
-	if ((adapter->data_sent || adapter->tx_lock_flag) && head_ptr) {
-		skb_queue_tail(&adapter->tx_data_q, skb);
-		atomic_inc(&adapter->tx_queued);
-		return 0;
-	}
-
-	if (head_ptr) {
-		if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
-			local_tx_pd = (struct txpd *)(head_ptr + hroom);
-		if (adapter->iface_type == MWIFIEX_USB) {
-			ret = adapter->if_ops.host_to_card(adapter,
-							   priv->usb_port,
-							   skb, NULL);
-		} else {
-			ret = adapter->if_ops.host_to_card(adapter,
-							   MWIFIEX_TYPE_DATA,
-							   skb, tx_param);
-		}
-	}
-	mwifiex_dbg_dump(adapter, DAT_D, "tx pkt:", skb->data,
-			 min_t(size_t, skb->len, DEBUG_DUMP_DATA_MAX_LEN));
-
-	switch (ret) {
-	case -ENOSR:
-		mwifiex_dbg(adapter, DATA, "data: -ENOSR is returned\n");
-		break;
-	case -EBUSY:
-		if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
-		    (adapter->pps_uapsd_mode) && (adapter->tx_lock_flag)) {
-				priv->adapter->tx_lock_flag = false;
-				if (local_tx_pd)
-					local_tx_pd->flags = 0;
-		}
-		mwifiex_dbg(adapter, ERROR, "data: -EBUSY is returned\n");
-		break;
-	case -1:
-		mwifiex_dbg(adapter, ERROR,
-			    "mwifiex_write_data_async failed: 0x%X\n",
-			    ret);
-		adapter->dbg.num_tx_host_to_card_failure++;
-		mwifiex_write_data_complete(adapter, skb, 0, ret);
-		break;
-	case -EINPROGRESS:
-		break;
-	case 0:
-		mwifiex_write_data_complete(adapter, skb, 0, ret);
-		break;
-	default:
-		break;
-	}
-
-	return ret;
-}
-
-static int mwifiex_host_to_card(struct mwifiex_adapter *adapter,
-				struct sk_buff *skb,
-				struct mwifiex_tx_param *tx_param)
-{
-	struct txpd *local_tx_pd = NULL;
-	u8 *head_ptr = skb->data;
-	int ret = 0;
-	struct mwifiex_private *priv;
-	struct mwifiex_txinfo *tx_info;
-
-	tx_info = MWIFIEX_SKB_TXCB(skb);
-	priv = mwifiex_get_priv_by_id(adapter, tx_info->bss_num,
-				      tx_info->bss_type);
-	if (!priv) {
-		mwifiex_dbg(adapter, ERROR,
-			    "data: priv not found. Drop TX packet\n");
-		adapter->dbg.num_tx_host_to_card_failure++;
-		mwifiex_write_data_complete(adapter, skb, 0, 0);
-		return ret;
-	}
-	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
-		if (adapter->iface_type == MWIFIEX_USB)
-			local_tx_pd = (struct txpd *)head_ptr;
-		else
-			local_tx_pd = (struct txpd *) (head_ptr +
-				INTF_HEADER_LEN);
-	}
-
-	if (adapter->iface_type == MWIFIEX_USB) {
-		ret = adapter->if_ops.host_to_card(adapter,
-						   priv->usb_port,
-						   skb, NULL);
-	} else {
-		ret = adapter->if_ops.host_to_card(adapter,
-						   MWIFIEX_TYPE_DATA,
-						   skb, tx_param);
-	}
-	switch (ret) {
-	case -ENOSR:
-		mwifiex_dbg(adapter, ERROR, "data: -ENOSR is returned\n");
-		break;
-	case -EBUSY:
-		if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
-		    (adapter->pps_uapsd_mode) &&
-		    (adapter->tx_lock_flag)) {
-			priv->adapter->tx_lock_flag = false;
-			if (local_tx_pd)
-				local_tx_pd->flags = 0;
-		}
-		skb_queue_head(&adapter->tx_data_q, skb);
-		if (tx_info->flags & MWIFIEX_BUF_FLAG_AGGR_PKT)
-			atomic_add(tx_info->aggr_num, &adapter->tx_queued);
-		else
-			atomic_inc(&adapter->tx_queued);
-		mwifiex_dbg(adapter, ERROR, "data: -EBUSY is returned\n");
-		break;
-	case -1:
-		mwifiex_dbg(adapter, ERROR,
-			    "mwifiex_write_data_async failed: 0x%X\n", ret);
-		adapter->dbg.num_tx_host_to_card_failure++;
-		mwifiex_write_data_complete(adapter, skb, 0, ret);
-		break;
-	case -EINPROGRESS:
-		break;
-	case 0:
-		mwifiex_write_data_complete(adapter, skb, 0, ret);
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static int
-mwifiex_dequeue_tx_queue(struct mwifiex_adapter *adapter)
-{
-	struct sk_buff *skb, *skb_next;
-	struct mwifiex_txinfo *tx_info;
-	struct mwifiex_tx_param tx_param;
-
-	skb = skb_dequeue(&adapter->tx_data_q);
-	if (!skb)
-		return -1;
-
-	tx_info = MWIFIEX_SKB_TXCB(skb);
-	if (tx_info->flags & MWIFIEX_BUF_FLAG_AGGR_PKT)
-		atomic_sub(tx_info->aggr_num, &adapter->tx_queued);
-	else
-		atomic_dec(&adapter->tx_queued);
-
-	if (!skb_queue_empty(&adapter->tx_data_q))
-		skb_next = skb_peek(&adapter->tx_data_q);
-	else
-		skb_next = NULL;
-	tx_param.next_pkt_len = ((skb_next) ? skb_next->len : 0);
-	if (!tx_param.next_pkt_len) {
-		if (!mwifiex_wmm_lists_empty(adapter))
-			tx_param.next_pkt_len = 1;
-	}
-	return mwifiex_host_to_card(adapter, skb, &tx_param);
-}
-
-void
-mwifiex_process_tx_queue(struct mwifiex_adapter *adapter)
-{
-	do {
-		if (adapter->data_sent || adapter->tx_lock_flag)
-			break;
-		if (mwifiex_dequeue_tx_queue(adapter))
-			break;
-	} while (!skb_queue_empty(&adapter->tx_data_q));
-}
-
-/*
- * Packet send completion callback handler.
- *
- * It either frees the buffer directly or forwards it to another
- * completion callback which checks conditions, updates statistics,
- * wakes up stalled traffic queue if required, and then frees the buffer.
- */
-int mwifiex_write_data_complete(struct mwifiex_adapter *adapter,
-				struct sk_buff *skb, int aggr, int status)
-{
-	struct mwifiex_private *priv;
-	struct mwifiex_txinfo *tx_info;
-	struct netdev_queue *txq;
-	int index;
-
-	if (!skb)
-		return 0;
-
-	tx_info = MWIFIEX_SKB_TXCB(skb);
-	priv = mwifiex_get_priv_by_id(adapter, tx_info->bss_num,
-				      tx_info->bss_type);
-	if (!priv)
-		goto done;
-
-	mwifiex_set_trans_start(priv->netdev);
-	if (!status) {
-		priv->stats.tx_packets++;
-		priv->stats.tx_bytes += tx_info->pkt_len;
-		if (priv->tx_timeout_cnt)
-			priv->tx_timeout_cnt = 0;
-	} else {
-		priv->stats.tx_errors++;
-	}
-
-	if (tx_info->flags & MWIFIEX_BUF_FLAG_BRIDGED_PKT)
-		atomic_dec_return(&adapter->pending_bridged_pkts);
-
-	if (tx_info->flags & MWIFIEX_BUF_FLAG_AGGR_PKT)
-		goto done;
-
-	if (aggr)
-		/* For skb_aggr, do not wake up tx queue */
-		goto done;
-
-	atomic_dec(&adapter->tx_pending);
-
-	index = mwifiex_1d_to_wmm_queue[skb->priority];
-	if (atomic_dec_return(&priv->wmm_tx_pending[index]) < LOW_TX_PENDING) {
-		txq = netdev_get_tx_queue(priv->netdev, index);
-		if (netif_tx_queue_stopped(txq)) {
-			netif_tx_wake_queue(txq);
-			mwifiex_dbg(adapter, DATA, "wake queue: %d\n", index);
-		}
-	}
-done:
-	dev_kfree_skb_any(skb);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mwifiex_write_data_complete);
-
-void mwifiex_parse_tx_status_event(struct mwifiex_private *priv,
-				   void *event_body)
-{
-	struct tx_status_event *tx_status = (void *)priv->adapter->event_body;
-	struct sk_buff *ack_skb;
-	unsigned long flags;
-	struct mwifiex_txinfo *tx_info;
-
-	if (!tx_status->tx_token_id)
-		return;
-
-	spin_lock_irqsave(&priv->ack_status_lock, flags);
-	ack_skb = idr_find(&priv->ack_status_frames, tx_status->tx_token_id);
-	if (ack_skb)
-		idr_remove(&priv->ack_status_frames, tx_status->tx_token_id);
-	spin_unlock_irqrestore(&priv->ack_status_lock, flags);
-
-	if (ack_skb) {
-		tx_info = MWIFIEX_SKB_TXCB(ack_skb);
-
-		if (tx_info->flags & MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS) {
-			/* consumes ack_skb */
-			skb_complete_wifi_ack(ack_skb, !tx_status->status);
-		} else {
-			/* Remove broadcast address which was added by driver */
-			memmove(ack_skb->data +
-				sizeof(struct ieee80211_hdr_3addr) +
-				MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16),
-				ack_skb->data +
-				sizeof(struct ieee80211_hdr_3addr) +
-				MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16) +
-				ETH_ALEN, ack_skb->len -
-				(sizeof(struct ieee80211_hdr_3addr) +
-				MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16) +
-				ETH_ALEN));
-			ack_skb->len = ack_skb->len - ETH_ALEN;
-			/* Remove driver's proprietary header including 2 bytes
-			 * of packet length and pass actual management frame buffer
-			 * to cfg80211.
-			 */
-			cfg80211_mgmt_tx_status(&priv->wdev, tx_info->cookie,
-						ack_skb->data +
-						MWIFIEX_MGMT_FRAME_HEADER_SIZE +
-						sizeof(u16), ack_skb->len -
-						(MWIFIEX_MGMT_FRAME_HEADER_SIZE
-						 + sizeof(u16)),
-						!tx_status->status, GFP_ATOMIC);
-			dev_kfree_skb_any(ack_skb);
-		}
-	}
-}