[mirror_ubuntu-hirsute-kernel.git] / drivers / net / wireless / mwifiex / 11n_aggr.c

/*
 * Marvell Wireless LAN device driver: 802.11n Aggregation
 *
 * Copyright (C) 2011, 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"
#include "11n.h"
#include "11n_aggr.h"

/*
 * Creates an AMSDU subframe for aggregation into one AMSDU packet.
 *
 * The resultant AMSDU subframe format is -
 *
 * +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+
 * |     DA     |     SA      |   Length   | SNAP header |   MSDU     |
 * | data[0..5] | data[6..11] |            |             | data[14..] |
 * +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+
 * <--6-bytes--> <--6-bytes--> <--2-bytes--><--8-bytes--> <--n-bytes-->
 *
 * This function also computes the amount of padding required to make the
 * buffer length multiple of 4 bytes.
 *
 * Data => |DA|SA|SNAP-TYPE|........    .|
 * MSDU => |DA|SA|Length|SNAP|......   ..|
 */
static int
mwifiex_11n_form_amsdu_pkt(struct sk_buff *skb_aggr,
			   struct sk_buff *skb_src, int *pad)

{
	int dt_offset;
	struct rfc_1042_hdr snap = {
		0xaa,		/* LLC DSAP */
		0xaa,		/* LLC SSAP */
		0x03,		/* LLC CTRL */
		{0x00, 0x00, 0x00},	/* SNAP OUI */
		0x0000		/* SNAP type */
			/*
			 * This field will be overwritten
			 * later with ethertype
			 */
	};
	struct tx_packet_hdr *tx_header;

	skb_put(skb_aggr, sizeof(*tx_header));

	tx_header = (struct tx_packet_hdr *) skb_aggr->data;

	/* Copy DA and SA */
	dt_offset = 2 * ETH_ALEN;
	memcpy(&tx_header->eth803_hdr, skb_src->data, dt_offset);

	/* Copy SNAP header */
	snap.snap_type = *(u16 *) ((u8 *)skb_src->data + dt_offset);
	dt_offset += sizeof(u16);

	memcpy(&tx_header->rfc1042_hdr, &snap, sizeof(struct rfc_1042_hdr));

	skb_pull(skb_src, dt_offset);

	/* Update Length field */
	tx_header->eth803_hdr.h_proto = htons(skb_src->len + LLC_SNAP_LEN);

	/* Add payload */
	skb_put(skb_aggr, skb_src->len);
	memcpy(skb_aggr->data + sizeof(*tx_header), skb_src->data,
							skb_src->len);
	*pad = (((skb_src->len + LLC_SNAP_LEN) & 3)) ? (4 - (((skb_src->len +
						      LLC_SNAP_LEN)) & 3)) : 0;
	skb_put(skb_aggr, *pad);

	return skb_aggr->len + *pad;
}

/*
 * Adds TxPD to AMSDU header.
 *
 * Each AMSDU packet will contain one TxPD at the beginning,
 * followed by multiple AMSDU subframes.
 */
static void
mwifiex_11n_form_amsdu_txpd(struct mwifiex_private *priv,
			    struct sk_buff *skb)
{
	struct txpd *local_tx_pd;

	skb_push(skb, sizeof(*local_tx_pd));

	local_tx_pd = (struct txpd *) skb->data;
	memset(local_tx_pd, 0, sizeof(struct txpd));

	/* Original priority has been overwritten */
	local_tx_pd->priority = (u8) skb->priority;
	local_tx_pd->pkt_delay_2ms =
		mwifiex_wmm_compute_drv_pkt_delay(priv, skb);
	local_tx_pd->bss_num = priv->bss_num;
	local_tx_pd->bss_type = priv->bss_type;
	/* Always zero as the data is followed by struct txpd */
	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd));
	local_tx_pd->tx_pkt_type = cpu_to_le16(PKT_TYPE_AMSDU);
	local_tx_pd->tx_pkt_length = cpu_to_le16(skb->len -
			sizeof(*local_tx_pd));

	if (local_tx_pd->tx_control == 0)
		/* TxCtrl set by user or default */
		local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl);

	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
		(priv->adapter->pps_uapsd_mode)) {
		if (true == mwifiex_check_last_packet_indication(priv)) {
			priv->adapter->tx_lock_flag = true;
			local_tx_pd->flags =
				MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET;
		}
	}
}

/*
 * Create aggregated packet.
 *
 * This function creates an aggregated MSDU packet, by combining buffers
 * from the RA list. Each individual buffer is encapsulated as an AMSDU
 * subframe and all such subframes are concatenated together to form the
 * AMSDU packet.
 *
 * A TxPD is also added to the front of the resultant AMSDU packets for
 * transmission. The resultant packets format is -
 *
 * +---- ~ ----+------ ~ ------+------ ~ ------+-..-+------ ~ ------+
 * |    TxPD   |AMSDU sub-frame|AMSDU sub-frame| .. |AMSDU sub-frame|
 * |           |       1       |       2       | .. |       n       |
 * +---- ~ ----+------ ~ ------+------ ~ ------+ .. +------ ~ ------+
 */
int
mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
			  struct mwifiex_ra_list_tbl *pra_list, int headroom,
			  int ptrindex, unsigned long ra_list_flags)
			  __releases(&priv->wmm.ra_list_spinlock)
{
	struct mwifiex_adapter *adapter = priv->adapter;
	struct sk_buff *skb_aggr, *skb_src;
	struct mwifiex_txinfo *tx_info_aggr, *tx_info_src;
	int pad = 0, ret;
	struct mwifiex_tx_param tx_param;
	struct txpd *ptx_pd = NULL;

	if (skb_queue_empty(&pra_list->skb_head)) {
		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
				       ra_list_flags);
		return 0;
	}
	skb_src = skb_peek(&pra_list->skb_head);
	tx_info_src = MWIFIEX_SKB_TXCB(skb_src);
	skb_aggr = dev_alloc_skb(adapter->tx_buf_size);
	if (!skb_aggr) {
		dev_err(adapter->dev, "%s: alloc skb_aggr\n", __func__);
		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
				       ra_list_flags);
		return -1;
	}
	skb_reserve(skb_aggr, headroom + sizeof(struct txpd));
	tx_info_aggr =  MWIFIEX_SKB_TXCB(skb_aggr);

	tx_info_aggr->bss_index = tx_info_src->bss_index;
	skb_aggr->priority = skb_src->priority;

	while (skb_src && ((skb_headroom(skb_aggr) + skb_src->len
					+ LLC_SNAP_LEN)
				<= adapter->tx_buf_size)) {

		if (!skb_queue_empty(&pra_list->skb_head))
			skb_src = skb_dequeue(&pra_list->skb_head);
		else
			skb_src = NULL;

		if (skb_src)
			pra_list->total_pkts_size -= skb_src->len;

		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
				       ra_list_flags);
		mwifiex_11n_form_amsdu_pkt(skb_aggr, skb_src, &pad);

		mwifiex_write_data_complete(adapter, skb_src, 0);

		spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);

		if (!mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
			spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
					       ra_list_flags);
			return -1;
		}

		if (!skb_queue_empty(&pra_list->skb_head))
			skb_src = skb_peek(&pra_list->skb_head);
		else
			skb_src = NULL;
	}

	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, ra_list_flags);

	/* Last AMSDU packet does not need padding */
	skb_trim(skb_aggr, skb_aggr->len - pad);

	/* Form AMSDU */
	mwifiex_11n_form_amsdu_txpd(priv, skb_aggr);
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
		ptx_pd = (struct txpd *)skb_aggr->data;

	skb_push(skb_aggr, headroom);

	tx_param.next_pkt_len = ((pra_list->total_pkts_size) ?
				 (((pra_list->total_pkts_size) >
				   adapter->tx_buf_size) ? adapter->
				  tx_buf_size : pra_list->total_pkts_size +
				  LLC_SNAP_LEN + sizeof(struct txpd)) : 0);
	ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA,
					     skb_aggr->data,
					     skb_aggr->len, &tx_param);
	switch (ret) {
	case -EBUSY:
		spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);
		if (!mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
			spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
					       ra_list_flags);
			mwifiex_write_data_complete(adapter, skb_aggr, -1);
			return -1;
		}
		if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
			(adapter->pps_uapsd_mode) &&
			(adapter->tx_lock_flag)) {
				priv->adapter->tx_lock_flag = false;
				if (ptx_pd)
					ptx_pd->flags = 0;
		}

		skb_queue_tail(&pra_list->skb_head, skb_aggr);

		pra_list->total_pkts_size += skb_aggr->len;

		tx_info_aggr->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT;
		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
				       ra_list_flags);
		dev_dbg(adapter->dev, "data: -EBUSY is returned\n");
		break;
	case -1:
		adapter->data_sent = false;
		dev_err(adapter->dev, "%s: host_to_card failed: %#x\n",
						__func__, ret);
		adapter->dbg.num_tx_host_to_card_failure++;
		mwifiex_write_data_complete(adapter, skb_aggr, ret);
		return 0;
	case -EINPROGRESS:
		adapter->data_sent = false;
		break;
	case 0:
		mwifiex_write_data_complete(adapter, skb_aggr, ret);
		break;
	default:
		break;
	}
	if (ret != -EBUSY) {
		spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);
		if (mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
			priv->wmm.packets_out[ptrindex]++;
			priv->wmm.tid_tbl_ptr[ptrindex].ra_list_curr = pra_list;
		}
		/* Now bss_prio_cur pointer points to next node */
		adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur =
			list_first_entry(
				&adapter->bss_prio_tbl[priv->bss_priority]
				.bss_prio_cur->list,
				struct mwifiex_bss_prio_node, list);
		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
				       ra_list_flags);
	}

	return 0;
}
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: 802.11n Aggregation
	3	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "decl.h"
	21	#include "ioctl.h"
	22	#include "util.h"
	23	#include "fw.h"
	24	#include "main.h"
	25	#include "wmm.h"
	26	#include "11n.h"
	27	#include "11n_aggr.h"
	28
	29	/*
	30	* Creates an AMSDU subframe for aggregation into one AMSDU packet.
	31	*
	32	* The resultant AMSDU subframe format is -
	33	*
	34	* +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+
	35	* \| DA \| SA \| Length \| SNAP header \| MSDU \|
	36	* \| data[0..5] \| data[6..11] \| \| \| data[14..] \|
	37	* +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+
	38	* <--6-bytes--> <--6-bytes--> <--2-bytes--><--8-bytes--> <--n-bytes-->
	39	*
	40	* This function also computes the amount of padding required to make the
	41	* buffer length multiple of 4 bytes.
	42	*
	43	* Data => \|DA\|SA\|SNAP-TYPE\|........ .\|
	44	* MSDU => \|DA\|SA\|Length\|SNAP\|...... ..\|
	45	*/
	46	static int
572e8f3e	47	mwifiex_11n_form_amsdu_pkt(struct sk_buff *skb_aggr,
5e6e3a92 BZ	48	struct sk_buff skb_src, int pad)
	49
	50	{
	51	int dt_offset;
	52	struct rfc_1042_hdr snap = {
	53	0xaa, /* LLC DSAP */
	54	0xaa, /* LLC SSAP */
	55	0x03, /* LLC CTRL */
	56	{0x00, 0x00, 0x00}, /* SNAP OUI */
	57	0x0000 /* SNAP type */
	58	/*
	59	* This field will be overwritten
	60	* later with ethertype
	61	*/
	62	};
270e58e8	63	struct tx_packet_hdr *tx_header;
5e6e3a92 BZ	64
	65	skb_put(skb_aggr, sizeof(*tx_header));
	66
	67	tx_header = (struct tx_packet_hdr *) skb_aggr->data;
	68
	69	/* Copy DA and SA */
	70	dt_offset = 2 * ETH_ALEN;
	71	memcpy(&tx_header->eth803_hdr, skb_src->data, dt_offset);
	72
	73	/* Copy SNAP header */
	74	snap.snap_type = (u16 ) ((u8 *)skb_src->data + dt_offset);
	75	dt_offset += sizeof(u16);
	76
	77	memcpy(&tx_header->rfc1042_hdr, &snap, sizeof(struct rfc_1042_hdr));
	78
	79	skb_pull(skb_src, dt_offset);
	80
	81	/* Update Length field */
	82	tx_header->eth803_hdr.h_proto = htons(skb_src->len + LLC_SNAP_LEN);
	83
	84	/* Add payload */
	85	skb_put(skb_aggr, skb_src->len);
	86	memcpy(skb_aggr->data + sizeof(*tx_header), skb_src->data,
	87	skb_src->len);
	88	*pad = (((skb_src->len + LLC_SNAP_LEN) & 3)) ? (4 - (((skb_src->len +
	89	LLC_SNAP_LEN)) & 3)) : 0;
	90	skb_put(skb_aggr, *pad);
	91
	92	return skb_aggr->len + *pad;
	93	}
	94
	95	/*
	96	* Adds TxPD to AMSDU header.
	97	*
	98	* Each AMSDU packet will contain one TxPD at the beginning,
	99	* followed by multiple AMSDU subframes.
	100	*/
	101	static void
	102	mwifiex_11n_form_amsdu_txpd(struct mwifiex_private *priv,
	103	struct sk_buff *skb)
	104	{
	105	struct txpd *local_tx_pd;
	106
	107	skb_push(skb, sizeof(*local_tx_pd));
	108
	109	local_tx_pd = (struct txpd *) skb->data;
	110	memset(local_tx_pd, 0, sizeof(struct txpd));
	111
	112	/* Original priority has been overwritten */
	113	local_tx_pd->priority = (u8) skb->priority;
	114	local_tx_pd->pkt_delay_2ms =
	115	mwifiex_wmm_compute_drv_pkt_delay(priv, skb);
	116	local_tx_pd->bss_num = priv->bss_num;
	117	local_tx_pd->bss_type = priv->bss_type;
	118	/* Always zero as the data is followed by struct txpd */
	119	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd));
	120	local_tx_pd->tx_pkt_type = cpu_to_le16(PKT_TYPE_AMSDU);
	121	local_tx_pd->tx_pkt_length = cpu_to_le16(skb->len -
	122	sizeof(*local_tx_pd));
	123
	124	if (local_tx_pd->tx_control == 0)
	125	/* TxCtrl set by user or default */
	126	local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl);
	127
128	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
129	(priv->adapter->pps_uapsd_mode)) {
130	if (true == mwifiex_check_last_packet_indication(priv)) {
131	priv->adapter->tx_lock_flag = true;
132	local_tx_pd->flags =
133	MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET;
134	}
135	}
136	}
137
5e6e3a92 BZ	138	/*
	139	* Create aggregated packet.
	140	*
	141	* This function creates an aggregated MSDU packet, by combining buffers
	142	* from the RA list. Each individual buffer is encapsulated as an AMSDU
	143	* subframe and all such subframes are concatenated together to form the
	144	* AMSDU packet.
	145	*
	146	* A TxPD is also added to the front of the resultant AMSDU packets for
	147	* transmission. The resultant packets format is -
	148	*
	149	* +---- ~ ----+------ ~ ------+------ ~ ------+-..-+------ ~ ------+
	150	* \| TxPD \|AMSDU sub-frame\|AMSDU sub-frame\| .. \|AMSDU sub-frame\|
	151	* \| \| 1 \| 2 \| .. \| n \|
	152	* +---- ~ ----+------ ~ ------+------ ~ ------+ .. +------ ~ ------+
	153	*/
	154	int
	155	mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
	156	struct mwifiex_ra_list_tbl *pra_list, int headroom,
	157	int ptrindex, unsigned long ra_list_flags)
	158	__releases(&priv->wmm.ra_list_spinlock)
	159	{
	160	struct mwifiex_adapter *adapter = priv->adapter;
	161	struct sk_buff skb_aggr, skb_src;
	162	struct mwifiex_txinfo tx_info_aggr, tx_info_src;
270e58e8	163	int pad = 0, ret;
5e6e3a92 BZ	164	struct mwifiex_tx_param tx_param;
	165	struct txpd *ptx_pd = NULL;
	166
	167	if (skb_queue_empty(&pra_list->skb_head)) {
	168	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	169	ra_list_flags);
	170	return 0;
	171	}
	172	skb_src = skb_peek(&pra_list->skb_head);
	173	tx_info_src = MWIFIEX_SKB_TXCB(skb_src);
	174	skb_aggr = dev_alloc_skb(adapter->tx_buf_size);
	175	if (!skb_aggr) {
	176	dev_err(adapter->dev, "%s: alloc skb_aggr\n", __func__);
	177	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	178	ra_list_flags);
	179	return -1;
	180	}
	181	skb_reserve(skb_aggr, headroom + sizeof(struct txpd));
	182	tx_info_aggr = MWIFIEX_SKB_TXCB(skb_aggr);
	183
	184	tx_info_aggr->bss_index = tx_info_src->bss_index;
	185	skb_aggr->priority = skb_src->priority;
	186
	187	while (skb_src && ((skb_headroom(skb_aggr) + skb_src->len
	188	+ LLC_SNAP_LEN)
	189	<= adapter->tx_buf_size)) {
	190
	191	if (!skb_queue_empty(&pra_list->skb_head))
	192	skb_src = skb_dequeue(&pra_list->skb_head);
	193	else
	194	skb_src = NULL;
	195
b53575ec CF	196	if (skb_src)
b53575ec CF	197	pra_list->total_pkts_size -= skb_src->len;
5e6e3a92 BZ	198
	199	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	200	ra_list_flags);
572e8f3e	201	mwifiex_11n_form_amsdu_pkt(skb_aggr, skb_src, &pad);
5e6e3a92 BZ	202
	203	mwifiex_write_data_complete(adapter, skb_src, 0);
	204
	205	spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);
	206
	207	if (!mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
	208	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	209	ra_list_flags);
	210	return -1;
	211	}
	212
	213	if (!skb_queue_empty(&pra_list->skb_head))
	214	skb_src = skb_peek(&pra_list->skb_head);
	215	else
	216	skb_src = NULL;
	217	}
	218
	219	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, ra_list_flags);
	220
	221	/* Last AMSDU packet does not need padding */
	222	skb_trim(skb_aggr, skb_aggr->len - pad);
	223
	224	/* Form AMSDU */
	225	mwifiex_11n_form_amsdu_txpd(priv, skb_aggr);
	226	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
	227	ptx_pd = (struct txpd *)skb_aggr->data;
	228
	229	skb_push(skb_aggr, headroom);
	230
	231	tx_param.next_pkt_len = ((pra_list->total_pkts_size) ?
	232	(((pra_list->total_pkts_size) >
	233	adapter->tx_buf_size) ? adapter->
	234	tx_buf_size : pra_list->total_pkts_size +
	235	LLC_SNAP_LEN + sizeof(struct txpd)) : 0);
	236	ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA,
	237	skb_aggr->data,
	238	skb_aggr->len, &tx_param);
	239	switch (ret) {
	240	case -EBUSY:
	241	spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);
	242	if (!mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
	243	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	244	ra_list_flags);
	245	mwifiex_write_data_complete(adapter, skb_aggr, -1);
	246	return -1;
	247	}
	248	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
	249	(adapter->pps_uapsd_mode) &&
	250	(adapter->tx_lock_flag)) {
	251	priv->adapter->tx_lock_flag = false;
b53575ec CF	252	if (ptx_pd)
b53575ec CF	253	ptx_pd->flags = 0;
5e6e3a92 BZ	254	}
	255
	256	skb_queue_tail(&pra_list->skb_head, skb_aggr);
	257
	258	pra_list->total_pkts_size += skb_aggr->len;
	259
	260	tx_info_aggr->flags \|= MWIFIEX_BUF_FLAG_REQUEUED_PKT;
	261	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	262	ra_list_flags);
	263	dev_dbg(adapter->dev, "data: -EBUSY is returned\n");
	264	break;
	265	case -1:
	266	adapter->data_sent = false;
	267	dev_err(adapter->dev, "%s: host_to_card failed: %#x\n",
	268	__func__, ret);
	269	adapter->dbg.num_tx_host_to_card_failure++;
	270	mwifiex_write_data_complete(adapter, skb_aggr, ret);
	271	return 0;
	272	case -EINPROGRESS:
	273	adapter->data_sent = false;
	274	break;
	275	case 0:
	276	mwifiex_write_data_complete(adapter, skb_aggr, ret);
	277	break;
	278	default:
	279	break;
	280	}
	281	if (ret != -EBUSY) {
	282	spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags);
	283	if (mwifiex_is_ralist_valid(priv, pra_list, ptrindex)) {
	284	priv->wmm.packets_out[ptrindex]++;
	285	priv->wmm.tid_tbl_ptr[ptrindex].ra_list_curr = pra_list;
	286	}
	287	/* Now bss_prio_cur pointer points to next node */
	288	adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur =
	289	list_first_entry(
	290	&adapter->bss_prio_tbl[priv->bss_priority]
	291	.bss_prio_cur->list,
	292	struct mwifiex_bss_prio_node, list);
	293	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
	294	ra_list_flags);
	295	}
	296
	297	return 0;
	298	}