blob: fdb585ff5925794060b9b2bb934c3484bdaa03da [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#define _RTW_XMIT_C_
#include <drv_types.h>
#include <rtw_debug.h>
static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
static void _init_txservq(struct tx_servq *ptxservq)
{
INIT_LIST_HEAD(&ptxservq->tx_pending);
_rtw_init_queue(&ptxservq->sta_pending);
ptxservq->qcnt = 0;
}
void _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv)
{
memset((unsigned char *)psta_xmitpriv, 0, sizeof(struct sta_xmit_priv));
spin_lock_init(&psta_xmitpriv->lock);
_init_txservq(&psta_xmitpriv->be_q);
_init_txservq(&psta_xmitpriv->bk_q);
_init_txservq(&psta_xmitpriv->vi_q);
_init_txservq(&psta_xmitpriv->vo_q);
INIT_LIST_HEAD(&psta_xmitpriv->legacy_dz);
INIT_LIST_HEAD(&psta_xmitpriv->apsd);
}
s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
{
int i;
struct xmit_buf *pxmitbuf;
struct xmit_frame *pxframe;
sint res = _SUCCESS;
spin_lock_init(&pxmitpriv->lock);
spin_lock_init(&pxmitpriv->lock_sctx);
init_completion(&pxmitpriv->xmit_comp);
init_completion(&pxmitpriv->terminate_xmitthread_comp);
/*
Please insert all the queue initializaiton using _rtw_init_queue below
*/
pxmitpriv->adapter = padapter;
_rtw_init_queue(&pxmitpriv->be_pending);
_rtw_init_queue(&pxmitpriv->bk_pending);
_rtw_init_queue(&pxmitpriv->vi_pending);
_rtw_init_queue(&pxmitpriv->vo_pending);
_rtw_init_queue(&pxmitpriv->bm_pending);
_rtw_init_queue(&pxmitpriv->free_xmit_queue);
/*
Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME,
and initialize free_xmit_frame below.
Please also apply free_txobj to link_up all the xmit_frames...
*/
pxmitpriv->pallocated_frame_buf = vzalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4);
if (!pxmitpriv->pallocated_frame_buf) {
pxmitpriv->pxmit_frame_buf = NULL;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_frame fail!\n"));
res = _FAIL;
goto exit;
}
pxmitpriv->pxmit_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_frame_buf), 4);
pxframe = (struct xmit_frame *) pxmitpriv->pxmit_frame_buf;
for (i = 0; i < NR_XMITFRAME; i++) {
INIT_LIST_HEAD(&pxframe->list);
pxframe->padapter = padapter;
pxframe->frame_tag = NULL_FRAMETAG;
pxframe->pkt = NULL;
pxframe->buf_addr = NULL;
pxframe->pxmitbuf = NULL;
list_add_tail(&pxframe->list,
&pxmitpriv->free_xmit_queue.queue);
pxframe++;
}
pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
/* init xmit_buf */
_rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
_rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
if (!pxmitpriv->pallocated_xmitbuf) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_buf fail!\n"));
res = _FAIL;
goto exit;
}
pxmitpriv->pxmitbuf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_xmitbuf), 4);
pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
for (i = 0; i < NR_XMITBUFF; i++) {
INIT_LIST_HEAD(&pxmitbuf->list);
pxmitbuf->priv_data = NULL;
pxmitbuf->padapter = padapter;
pxmitbuf->buf_tag = XMITBUF_DATA;
/* Tx buf allocation may fail sometimes, so sleep and retry. */
res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
if (res == _FAIL) {
msleep(10);
res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
if (res == _FAIL)
goto exit;
}
pxmitbuf->phead = pxmitbuf->pbuf;
pxmitbuf->pend = pxmitbuf->pbuf + MAX_XMITBUF_SZ;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
pxmitbuf->flags = XMIT_VO_QUEUE;
list_add_tail(&pxmitbuf->list,
&pxmitpriv->free_xmitbuf_queue.queue);
#ifdef DBG_XMIT_BUF
pxmitbuf->no = i;
#endif
pxmitbuf++;
}
pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
/* init xframe_ext queue, the same count as extbuf */
_rtw_init_queue(&pxmitpriv->free_xframe_ext_queue);
pxmitpriv->xframe_ext_alloc_addr = vzalloc(NR_XMIT_EXTBUFF * sizeof(struct xmit_frame) + 4);
if (!pxmitpriv->xframe_ext_alloc_addr) {
pxmitpriv->xframe_ext = NULL;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xframe_ext fail!\n"));
res = _FAIL;
goto exit;
}
pxmitpriv->xframe_ext = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->xframe_ext_alloc_addr), 4);
pxframe = (struct xmit_frame *)pxmitpriv->xframe_ext;
for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
INIT_LIST_HEAD(&pxframe->list);
pxframe->padapter = padapter;
pxframe->frame_tag = NULL_FRAMETAG;
pxframe->pkt = NULL;
pxframe->buf_addr = NULL;
pxframe->pxmitbuf = NULL;
pxframe->ext_tag = 1;
list_add_tail(&pxframe->list,
&pxmitpriv->free_xframe_ext_queue.queue);
pxframe++;
}
pxmitpriv->free_xframe_ext_cnt = NR_XMIT_EXTBUFF;
/* Init xmit extension buff */
_rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
pxmitpriv->pallocated_xmit_extbuf = vzalloc(NR_XMIT_EXTBUFF * sizeof(struct xmit_buf) + 4);
if (!pxmitpriv->pallocated_xmit_extbuf) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_extbuf fail!\n"));
res = _FAIL;
goto exit;
}
pxmitpriv->pxmit_extbuf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_xmit_extbuf), 4);
pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
INIT_LIST_HEAD(&pxmitbuf->list);
pxmitbuf->priv_data = NULL;
pxmitbuf->padapter = padapter;
pxmitbuf->buf_tag = XMITBUF_MGNT;
res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, MAX_XMIT_EXTBUF_SZ + XMITBUF_ALIGN_SZ, true);
if (res == _FAIL) {
res = _FAIL;
goto exit;
}
pxmitbuf->phead = pxmitbuf->pbuf;
pxmitbuf->pend = pxmitbuf->pbuf + MAX_XMIT_EXTBUF_SZ;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
list_add_tail(&pxmitbuf->list,
&pxmitpriv->free_xmit_extbuf_queue.queue);
#ifdef DBG_XMIT_BUF_EXT
pxmitbuf->no = i;
#endif
pxmitbuf++;
}
pxmitpriv->free_xmit_extbuf_cnt = NR_XMIT_EXTBUFF;
for (i = 0; i < CMDBUF_MAX; i++) {
pxmitbuf = &pxmitpriv->pcmd_xmitbuf[i];
if (pxmitbuf) {
INIT_LIST_HEAD(&pxmitbuf->list);
pxmitbuf->priv_data = NULL;
pxmitbuf->padapter = padapter;
pxmitbuf->buf_tag = XMITBUF_CMD;
res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ, true);
if (res == _FAIL) {
res = _FAIL;
goto exit;
}
pxmitbuf->phead = pxmitbuf->pbuf;
pxmitbuf->pend = pxmitbuf->pbuf + MAX_CMDBUF_SZ;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
pxmitbuf->alloc_sz = MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ;
}
}
res = rtw_alloc_hwxmits(padapter);
if (res == _FAIL)
goto exit;
rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
for (i = 0; i < 4; i++)
pxmitpriv->wmm_para_seq[i] = i;
pxmitpriv->ack_tx = false;
mutex_init(&pxmitpriv->ack_tx_mutex);
rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
rtw_hal_init_xmit_priv(padapter);
exit:
return res;
}
void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
{
int i;
struct adapter *padapter = pxmitpriv->adapter;
struct xmit_frame *pxmitframe = (struct xmit_frame *) pxmitpriv->pxmit_frame_buf;
struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
rtw_hal_free_xmit_priv(padapter);
if (!pxmitpriv->pxmit_frame_buf)
return;
for (i = 0; i < NR_XMITFRAME; i++) {
rtw_os_xmit_complete(padapter, pxmitframe);
pxmitframe++;
}
for (i = 0; i < NR_XMITBUFF; i++) {
rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
pxmitbuf++;
}
if (pxmitpriv->pallocated_frame_buf)
vfree(pxmitpriv->pallocated_frame_buf);
if (pxmitpriv->pallocated_xmitbuf)
vfree(pxmitpriv->pallocated_xmitbuf);
/* free xframe_ext queue, the same count as extbuf */
pxmitframe = (struct xmit_frame *)pxmitpriv->xframe_ext;
if (pxmitframe) {
for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
rtw_os_xmit_complete(padapter, pxmitframe);
pxmitframe++;
}
}
if (pxmitpriv->xframe_ext_alloc_addr)
vfree(pxmitpriv->xframe_ext_alloc_addr);
/* free xmit extension buff */
pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMIT_EXTBUF_SZ + XMITBUF_ALIGN_SZ), true);
pxmitbuf++;
}
if (pxmitpriv->pallocated_xmit_extbuf)
vfree(pxmitpriv->pallocated_xmit_extbuf);
for (i = 0; i < CMDBUF_MAX; i++) {
pxmitbuf = &pxmitpriv->pcmd_xmitbuf[i];
if (pxmitbuf)
rtw_os_xmit_resource_free(padapter, pxmitbuf, MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ, true);
}
rtw_free_hwxmits(padapter);
mutex_destroy(&pxmitpriv->ack_tx_mutex);
}
u8 query_ra_short_GI(struct sta_info *psta)
{
u8 sgi = false, sgi_20m = false, sgi_40m = false, sgi_80m = false;
sgi_20m = psta->htpriv.sgi_20m;
sgi_40m = psta->htpriv.sgi_40m;
switch (psta->bw_mode) {
case CHANNEL_WIDTH_80:
sgi = sgi_80m;
break;
case CHANNEL_WIDTH_40:
sgi = sgi_40m;
break;
case CHANNEL_WIDTH_20:
default:
sgi = sgi_20m;
break;
}
return sgi;
}
static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
u32 sz;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
/* struct sta_info *psta = pattrib->psta; */
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
if (pattrib->nr_frags != 1)
sz = padapter->xmitpriv.frag_len;
else /* no frag */
sz = pattrib->last_txcmdsz;
/* (1) RTS_Threshold is compared to the MPDU, not MSDU. */
/* (2) If there are more than one frag in this MSDU, only the first frag uses protection frame. */
/* Other fragments are protected by previous fragment. */
/* So we only need to check the length of first fragment. */
if (pmlmeext->cur_wireless_mode < WIRELESS_11_24N || padapter->registrypriv.wifi_spec) {
if (sz > padapter->registrypriv.rts_thresh)
pattrib->vcs_mode = RTS_CTS;
else {
if (pattrib->rtsen)
pattrib->vcs_mode = RTS_CTS;
else if (pattrib->cts2self)
pattrib->vcs_mode = CTS_TO_SELF;
else
pattrib->vcs_mode = NONE_VCS;
}
} else {
while (true) {
/* IOT action */
if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_ATHEROS) && (pattrib->ampdu_en == true) &&
(padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)) {
pattrib->vcs_mode = CTS_TO_SELF;
break;
}
/* check ERP protection */
if (pattrib->rtsen || pattrib->cts2self) {
if (pattrib->rtsen)
pattrib->vcs_mode = RTS_CTS;
else if (pattrib->cts2self)
pattrib->vcs_mode = CTS_TO_SELF;
break;
}
/* check HT op mode */
if (pattrib->ht_en) {
u8 HTOpMode = pmlmeinfo->HT_protection;
if ((pmlmeext->cur_bwmode && (HTOpMode == 2 || HTOpMode == 3)) ||
(!pmlmeext->cur_bwmode && HTOpMode == 3)) {
pattrib->vcs_mode = RTS_CTS;
break;
}
}
/* check rts */
if (sz > padapter->registrypriv.rts_thresh) {
pattrib->vcs_mode = RTS_CTS;
break;
}
/* to do list: check MIMO power save condition. */
/* check AMPDU aggregation for TXOP */
if (pattrib->ampdu_en == true) {
pattrib->vcs_mode = RTS_CTS;
break;
}
pattrib->vcs_mode = NONE_VCS;
break;
}
}
/* for debug : force driver control vrtl_carrier_sense. */
if (padapter->driver_vcs_en == 1)
pattrib->vcs_mode = padapter->driver_vcs_type;
}
static void update_attrib_phy_info(struct adapter *padapter, struct pkt_attrib *pattrib, struct sta_info *psta)
{
struct mlme_ext_priv *mlmeext = &padapter->mlmeextpriv;
pattrib->rtsen = psta->rtsen;
pattrib->cts2self = psta->cts2self;
pattrib->mdata = 0;
pattrib->eosp = 0;
pattrib->triggered = 0;
pattrib->ampdu_spacing = 0;
/* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
pattrib->qos_en = psta->qos_option;
pattrib->raid = psta->raid;
if (mlmeext->cur_bwmode < psta->bw_mode)
pattrib->bwmode = mlmeext->cur_bwmode;
else
pattrib->bwmode = psta->bw_mode;
pattrib->sgi = query_ra_short_GI(psta);
pattrib->ldpc = psta->ldpc;
pattrib->stbc = psta->stbc;
pattrib->ht_en = psta->htpriv.ht_option;
pattrib->ch_offset = psta->htpriv.ch_offset;
pattrib->ampdu_en = false;
if (padapter->driver_ampdu_spacing != 0xFF) /* driver control AMPDU Density for peer sta's rx */
pattrib->ampdu_spacing = padapter->driver_ampdu_spacing;
else
pattrib->ampdu_spacing = psta->htpriv.rx_ampdu_min_spacing;
pattrib->retry_ctrl = false;
#ifdef CONFIG_AUTO_AP_MODE
if (psta->isrc && psta->pid > 0)
pattrib->pctrl = true;
#endif
}
static s32 update_attrib_sec_info(struct adapter *padapter, struct pkt_attrib *pattrib, struct sta_info *psta)
{
sint res = _SUCCESS;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct security_priv *psecuritypriv = &padapter->securitypriv;
sint bmcast = IS_MCAST(pattrib->ra);
memset(pattrib->dot118021x_UncstKey.skey, 0, 16);
memset(pattrib->dot11tkiptxmickey.skey, 0, 16);
pattrib->mac_id = psta->mac_id;
if (psta->ieee8021x_blocked == true) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\n psta->ieee8021x_blocked == true\n"));
pattrib->encrypt = 0;
if ((pattrib->ether_type != 0x888e) && (check_fwstate(pmlmepriv, WIFI_MP_STATE) == false)) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\npsta->ieee8021x_blocked == true, pattrib->ether_type(%.4x) != 0x888e\n", pattrib->ether_type));
#ifdef DBG_TX_DROP_FRAME
DBG_871X("DBG_TX_DROP_FRAME %s psta->ieee8021x_blocked == true, pattrib->ether_type(%04x) != 0x888e\n", __func__, pattrib->ether_type);
#endif
res = _FAIL;
goto exit;
}
} else {
GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast);
switch (psecuritypriv->dot11AuthAlgrthm) {
case dot11AuthAlgrthm_Open:
case dot11AuthAlgrthm_Shared:
case dot11AuthAlgrthm_Auto:
pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
break;
case dot11AuthAlgrthm_8021X:
if (bmcast)
pattrib->key_idx = (u8)psecuritypriv->dot118021XGrpKeyid;
else
pattrib->key_idx = 0;
break;
default:
pattrib->key_idx = 0;
break;
}
/* For WPS 1.0 WEP, driver should not encrypt EAPOL Packet for WPS handshake. */
if (((pattrib->encrypt == _WEP40_) || (pattrib->encrypt == _WEP104_)) && (pattrib->ether_type == 0x888e))
pattrib->encrypt = _NO_PRIVACY_;
}
switch (pattrib->encrypt) {
case _WEP40_:
case _WEP104_:
pattrib->iv_len = 4;
pattrib->icv_len = 4;
WEP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
break;
case _TKIP_:
pattrib->iv_len = 8;
pattrib->icv_len = 4;
if (psecuritypriv->busetkipkey == _FAIL) {
#ifdef DBG_TX_DROP_FRAME
DBG_871X("DBG_TX_DROP_FRAME %s psecuritypriv->busetkipkey(%d) == _FAIL drop packet\n", __func__, psecuritypriv->busetkipkey);
#endif
res = _FAIL;
goto exit;
}
if (bmcast)
TKIP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
else
TKIP_IV(pattrib->iv, psta->dot11txpn, 0);
memcpy(pattrib->dot11tkiptxmickey.skey, psta->dot11tkiptxmickey.skey, 16);
break;
case _AES_:
pattrib->iv_len = 8;
pattrib->icv_len = 8;
if (bmcast)
AES_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
else
AES_IV(pattrib->iv, psta->dot11txpn, 0);
break;
default:
pattrib->iv_len = 0;
pattrib->icv_len = 0;
break;
}
if (pattrib->encrypt > 0)
memcpy(pattrib->dot118021x_UncstKey.skey, psta->dot118021x_UncstKey.skey, 16);
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
("update_attrib: encrypt =%d securitypriv.sw_encrypt =%d\n",
pattrib->encrypt, padapter->securitypriv.sw_encrypt));
if (pattrib->encrypt &&
((padapter->securitypriv.sw_encrypt == true) || (psecuritypriv->hw_decrypted == false))) {
pattrib->bswenc = true;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
("update_attrib: encrypt =%d securitypriv.hw_decrypted =%d bswenc =true\n",
pattrib->encrypt, padapter->securitypriv.sw_encrypt));
} else {
pattrib->bswenc = false;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("update_attrib: bswenc =false\n"));
}
exit:
return res;
}
u8 qos_acm(u8 acm_mask, u8 priority)
{
switch (priority) {
case 0:
case 3:
if (acm_mask & BIT(1))
priority = 1;
break;
case 1:
case 2:
break;
case 4:
case 5:
if (acm_mask & BIT(2))
priority = 0;
break;
case 6:
case 7:
if (acm_mask & BIT(3))
priority = 5;
break;
default:
DBG_871X("qos_acm(): invalid pattrib->priority: %d!!!\n", priority);
break;
}
return priority;
}
static void set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
{
struct ethhdr etherhdr;
struct iphdr ip_hdr;
s32 UserPriority = 0;
_rtw_open_pktfile(ppktfile->pkt, ppktfile);
_rtw_pktfile_read(ppktfile, (unsigned char *)&etherhdr, ETH_HLEN);
/* get UserPriority from IP hdr */
if (pattrib->ether_type == 0x0800) {
_rtw_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr));
UserPriority = ip_hdr.tos >> 5;
}
pattrib->priority = UserPriority;
pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
pattrib->subtype = WIFI_QOS_DATA_TYPE;
}
static s32 update_attrib(struct adapter *padapter, _pkt *pkt, struct pkt_attrib *pattrib)
{
struct pkt_file pktfile;
struct sta_info *psta = NULL;
struct ethhdr etherhdr;
sint bmcast;
struct sta_priv *pstapriv = &padapter->stapriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct qos_priv *pqospriv = &pmlmepriv->qospriv;
sint res = _SUCCESS;
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib);
_rtw_open_pktfile(pkt, &pktfile);
_rtw_pktfile_read(&pktfile, (u8 *)&etherhdr, ETH_HLEN);
pattrib->ether_type = ntohs(etherhdr.h_proto);
memcpy(pattrib->dst, &etherhdr.h_dest, ETH_ALEN);
memcpy(pattrib->src, &etherhdr.h_source, ETH_ALEN);
if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_adhoc);
} else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_sta);
} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_ap);
} else
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_unknown);
pattrib->pktlen = pktfile.pkt_len;
if (ETH_P_IP == pattrib->ether_type) {
/* The following is for DHCP and ARP packet, we use cck1M to tx these packets and let LPS awake some time */
/* to prevent DHCP protocol fail */
u8 tmp[24];
_rtw_pktfile_read(&pktfile, &tmp[0], 24);
pattrib->dhcp_pkt = 0;
if (pktfile.pkt_len > 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
if (ETH_P_IP == pattrib->ether_type) {/* IP header */
if (((tmp[21] == 68) && (tmp[23] == 67)) ||
((tmp[21] == 67) && (tmp[23] == 68))) {
/* 68 : UDP BOOTP client */
/* 67 : UDP BOOTP server */
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("======================update_attrib: get DHCP Packet\n"));
pattrib->dhcp_pkt = 1;
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_dhcp);
}
}
}
/* for parsing ICMP pakcets */
{
struct iphdr *piphdr = (struct iphdr *)tmp;
pattrib->icmp_pkt = 0;
if (piphdr->protocol == 0x1) { /* protocol type in ip header 0x1 is ICMP */
pattrib->icmp_pkt = 1;
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_icmp);
}
}
} else if (0x888e == pattrib->ether_type) {
DBG_871X_LEVEL(_drv_always_, "send eapol packet\n");
}
if ((pattrib->ether_type == 0x888e) || (pattrib->dhcp_pkt == 1))
rtw_set_scan_deny(padapter, 3000);
/* If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
if (pattrib->icmp_pkt == 1)
rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1);
else if (pattrib->dhcp_pkt == 1) {
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_active);
rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
}
bmcast = IS_MCAST(pattrib->ra);
/* get sta_info */
if (bmcast) {
psta = rtw_get_bcmc_stainfo(padapter);
} else {
psta = rtw_get_stainfo(pstapriv, pattrib->ra);
if (!psta) { /* if we cannot get psta => drop the pkt */
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_err_ucast_sta);
RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:" MAC_FMT"\n", MAC_ARG(pattrib->ra)));
#ifdef DBG_TX_DROP_FRAME
DBG_871X("DBG_TX_DROP_FRAME %s get sta_info fail, ra:" MAC_FMT"\n", __func__, MAC_ARG(pattrib->ra));
#endif
res = _FAIL;
goto exit;
} else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) && (!(psta->state & _FW_LINKED))) {
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_err_ucast_ap_link);
res = _FAIL;
goto exit;
}
}
if (!psta) {
/* if we cannot get psta => drop the pkt */
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_err_sta);
RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:" MAC_FMT "\n", MAC_ARG(pattrib->ra)));
#ifdef DBG_TX_DROP_FRAME
DBG_871X("DBG_TX_DROP_FRAME %s get sta_info fail, ra:" MAC_FMT"\n", __func__, MAC_ARG(pattrib->ra));
#endif
res = _FAIL;
goto exit;
}
if (!(psta->state & _FW_LINKED)) {
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_err_link);
DBG_871X("%s, psta("MAC_FMT")->state(0x%x) != _FW_LINKED\n", __func__, MAC_ARG(psta->hwaddr), psta->state);
return _FAIL;
}
/* TODO:_lock */
if (update_attrib_sec_info(padapter, pattrib, psta) == _FAIL) {
DBG_COUNTER(padapter->tx_logs.core_tx_upd_attrib_err_sec);
res = _FAIL;
goto exit;
}
update_attrib_phy_info(padapter, pattrib, psta);
pattrib->psta = psta;
/* TODO:_unlock */
pattrib->pctrl = 0;
pattrib->ack_policy = 0;
/* get ether_hdr_len */
pattrib->pkt_hdrlen = ETH_HLEN;/* pattrib->ether_type == 0x8100) ? (14 + 4): 14; vlan tag */
pattrib->hdrlen = WLAN_HDR_A3_LEN;
pattrib->subtype = WIFI_DATA_TYPE;
pattrib->priority = 0;
if (check_fwstate(pmlmepriv, WIFI_AP_STATE|WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
if (pattrib->qos_en)
set_qos(&pktfile, pattrib);
} else {
if (pqospriv->qos_option) {
set_qos(&pktfile, pattrib);
if (pmlmepriv->acm_mask != 0)
pattrib->priority = qos_acm(pmlmepriv->acm_mask, pattrib->priority);
}
}
/* pattrib->priority = 5; force to used VI queue, for testing */
exit:
return res;
}
static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
sint curfragnum, length;
u8 *pframe, *payload, mic[8];
struct mic_data micdata;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
u8 hw_hdr_offset = 0;
sint bmcst = IS_MCAST(pattrib->ra);
hw_hdr_offset = TXDESC_OFFSET;
if (pattrib->encrypt == _TKIP_) {
/* encode mic code */
{
u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
pframe = pxmitframe->buf_addr + hw_hdr_offset;
if (bmcst) {
if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
return _FAIL;
/* start to calculate the mic code */
rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
} else {
if (!memcmp(&pattrib->dot11tkiptxmickey.skey[0], null_key, 16))
return _FAIL;
/* start to calculate the mic code */
rtw_secmicsetkey(&micdata, &pattrib->dot11tkiptxmickey.skey[0]);
}
if (pframe[1]&1) { /* ToDS == 1 */
rtw_secmicappend(&micdata, &pframe[16], 6); /* DA */
if (pframe[1]&2) /* From Ds == 1 */
rtw_secmicappend(&micdata, &pframe[24], 6);
else
rtw_secmicappend(&micdata, &pframe[10], 6);
} else { /* ToDS == 0 */
rtw_secmicappend(&micdata, &pframe[4], 6); /* DA */
if (pframe[1]&2) /* From Ds == 1 */
rtw_secmicappend(&micdata, &pframe[16], 6);
else
rtw_secmicappend(&micdata, &pframe[10], 6);
}
if (pattrib->qos_en)
priority[0] = (u8)pxmitframe->attrib.priority;
rtw_secmicappend(&micdata, &priority[0], 4);
payload = pframe;
for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
payload = (u8 *)RND4((SIZE_PTR)(payload));
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("===curfragnum =%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
curfragnum, *payload, *(payload+1), *(payload+2), *(payload+3), *(payload+4), *(payload+5), *(payload+6), *(payload+7)));
payload = payload+pattrib->hdrlen+pattrib->iv_len;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum =%d pattrib->hdrlen =%d pattrib->iv_len =%d", curfragnum, pattrib->hdrlen, pattrib->iv_len));
if ((curfragnum+1) == pattrib->nr_frags) {
length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
rtw_secmicappend(&micdata, payload, length);
payload = payload+length;
} else {
length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
rtw_secmicappend(&micdata, payload, length);
payload = payload+length+pattrib->icv_len;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum =%d length =%d pattrib->icv_len =%d", curfragnum, length, pattrib->icv_len));
}
}
rtw_secgetmic(&micdata, &mic[0]);
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: before add mic code!!!\n"));
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: pattrib->last_txcmdsz =%d!!!\n", pattrib->last_txcmdsz));
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: mic[0]= 0x%.2x , mic[1]= 0x%.2x , mic[2]= 0x%.2x , mic[3]= 0x%.2x\n\
mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
/* add mic code and add the mic code length in last_txcmdsz */
memcpy(payload, &mic[0], 8);
pattrib->last_txcmdsz += 8;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ========last pkt ========\n"));
payload = payload-pattrib->last_txcmdsz+8;
for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum = curfragnum+8)
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, (" %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x ",
*(payload+curfragnum), *(payload+curfragnum+1), *(payload+curfragnum+2), *(payload+curfragnum+3),
*(payload+curfragnum+4), *(payload+curfragnum+5), *(payload+curfragnum+6), *(payload+curfragnum+7)));
}
/*
*/
}
return _SUCCESS;
}
static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
struct pkt_attrib *pattrib = &pxmitframe->attrib;
if (pattrib->bswenc) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("### xmitframe_swencrypt\n"));
switch (pattrib->encrypt) {
case _WEP40_:
case _WEP104_:
rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
break;
case _TKIP_:
rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
break;
case _AES_:
rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
break;
default:
break;
}
} else
RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_, ("### xmitframe_hwencrypt\n"));
return _SUCCESS;
}
s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
{
u16 *qc;
struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct qos_priv *pqospriv = &pmlmepriv->qospriv;
u8 qos_option = false;
sint res = _SUCCESS;
__le16 *fctrl = &pwlanhdr->frame_control;
memset(hdr, 0, WLANHDR_OFFSET);
SetFrameSubType(fctrl, pattrib->subtype);
if (pattrib->subtype & WIFI_DATA_TYPE) {
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
/* to_ds = 1, fr_ds = 0; */
{
/* 1.Data transfer to AP */
/* 2.Arp pkt will relayed by AP */
SetToDs(fctrl);
memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), ETH_ALEN);
memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN);
}
if (pqospriv->qos_option)
qos_option = true;
} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
/* to_ds = 0, fr_ds = 1; */
SetFrDs(fctrl);
memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN);
memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);
if (pattrib->qos_en)
qos_option = true;
} else if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);
if (pattrib->qos_en)
qos_option = true;
} else {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));
res = _FAIL;
goto exit;
}
if (pattrib->mdata)
SetMData(fctrl);
if (pattrib->encrypt)
SetPrivacy(fctrl);
if (qos_option) {
qc = (unsigned short *)(hdr + pattrib->hdrlen - 2);
if (pattrib->priority)
SetPriority(qc, pattrib->priority);
SetEOSP(qc, pattrib->eosp);
SetAckpolicy(qc, pattrib->ack_policy);
}
/* TODO: fill HT Control Field */
/* Update Seq Num will be handled by f/w */
{
struct sta_info *psta;
psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
if (pattrib->psta != psta) {
DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pattrib->psta, psta);
return _FAIL;
}
if (!psta) {
DBG_871X("%s, psta ==NUL\n", __func__);
return _FAIL;
}
if (!(psta->state & _FW_LINKED)) {
DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state);
return _FAIL;
}
if (psta) {
psta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
psta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
pattrib->seqnum = psta->sta_xmitpriv.txseq_tid[pattrib->priority];
SetSeqNum(hdr, pattrib->seqnum);
/* check if enable ampdu */
if (pattrib->ht_en && psta->htpriv.ampdu_enable)
if (psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
pattrib->ampdu_en = true;
/* re-check if enable ampdu by BA_starting_seqctrl */
if (pattrib->ampdu_en == true) {
u16 tx_seq;
tx_seq = psta->BA_starting_seqctrl[pattrib->priority & 0x0f];
/* check BA_starting_seqctrl */
if (SN_LESS(pattrib->seqnum, tx_seq)) {
pattrib->ampdu_en = false;/* AGG BK */
} else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {
psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (tx_seq+1)&0xfff;
pattrib->ampdu_en = true;/* AGG EN */
} else {
psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (pattrib->seqnum+1)&0xfff;
pattrib->ampdu_en = true;/* AGG EN */
}
}
}
}
} else {
}
exit:
return res;
}
s32 rtw_txframes_pending(struct adapter *padapter)
{
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
return ((!list_empty(&pxmitpriv->be_pending.queue)) ||
(!list_empty(&pxmitpriv->bk_pending.queue)) ||
(!list_empty(&pxmitpriv->vi_pending.queue)) ||
(!list_empty(&pxmitpriv->vo_pending.queue)));
}
/*
* Calculate wlan 802.11 packet MAX size from pkt_attrib
* This function doesn't consider fragment case
*/
u32 rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib *pattrib)
{
u32 len = 0;
len = pattrib->hdrlen + pattrib->iv_len; /* WLAN Header and IV */
len += SNAP_SIZE + sizeof(u16); /* LLC */
len += pattrib->pktlen;
if (pattrib->encrypt == _TKIP_)
len += 8; /* MIC */
len += ((pattrib->bswenc) ? pattrib->icv_len : 0); /* ICV */
return len;
}
/*
This sub-routine will perform all the following:
1. remove 802.3 header.
2. create wlan_header, based on the info in pxmitframe
3. append sta's iv/ext-iv
4. append LLC
5. move frag chunk from pframe to pxmitframe->mem
6. apply sw-encrypt, if necessary.
*/
s32 rtw_xmitframe_coalesce(struct adapter *padapter, _pkt *pkt, struct xmit_frame *pxmitframe)
{
struct pkt_file pktfile;
s32 frg_inx, frg_len, mpdu_len, llc_sz, mem_sz;
SIZE_PTR addr;
u8 *pframe, *mem_start;
u8 hw_hdr_offset;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
u8 *pbuf_start;
s32 bmcst = IS_MCAST(pattrib->ra);
s32 res = _SUCCESS;
if (!pxmitframe->buf_addr) {
DBG_8192C("==> %s buf_addr == NULL\n", __func__);
return _FAIL;
}
pbuf_start = pxmitframe->buf_addr;
hw_hdr_offset = TXDESC_OFFSET;
mem_start = pbuf_start + hw_hdr_offset;
if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n"));
DBG_8192C("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n");
res = _FAIL;
goto exit;
}
_rtw_open_pktfile(pkt, &pktfile);
_rtw_pktfile_read(&pktfile, NULL, pattrib->pkt_hdrlen);
frg_inx = 0;
frg_len = pxmitpriv->frag_len - 4;/* 2346-4 = 2342 */
while (1) {
llc_sz = 0;
mpdu_len = frg_len;
pframe = mem_start;
SetMFrag(mem_start);
pframe += pattrib->hdrlen;
mpdu_len -= pattrib->hdrlen;
/* adding icv, if necessary... */
if (pattrib->iv_len) {
memcpy(pframe, pattrib->iv, pattrib->iv_len);
RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
("rtw_xmitframe_coalesce: keyid =%d pattrib->iv[3]=%.2x pframe =%.2x %.2x %.2x %.2x\n",
padapter->securitypriv.dot11PrivacyKeyIndex, pattrib->iv[3], *pframe, *(pframe+1), *(pframe+2), *(pframe+3)));
pframe += pattrib->iv_len;
mpdu_len -= pattrib->iv_len;
}
if (frg_inx == 0) {
llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
pframe += llc_sz;
mpdu_len -= llc_sz;
}
if ((pattrib->icv_len > 0) && (pattrib->bswenc))
mpdu_len -= pattrib->icv_len;
if (bmcst) {
/* don't do fragment to broadcat/multicast packets */
mem_sz = _rtw_pktfile_read(&pktfile, pframe, pattrib->pktlen);
} else {
mem_sz = _rtw_pktfile_read(&pktfile, pframe, mpdu_len);
}
pframe += mem_sz;
if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
memcpy(pframe, pattrib->icv, pattrib->icv_len);
pframe += pattrib->icv_len;
}
frg_inx++;
if (bmcst || (rtw_endofpktfile(&pktfile) == true)) {
pattrib->nr_frags = frg_inx;
pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz:0) +
((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
ClearMFrag(mem_start);
break;
} else
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: There're still something in packet!\n", __func__));
addr = (SIZE_PTR)(pframe);
mem_start = (unsigned char *)RND4(addr) + hw_hdr_offset;
memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
}
if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
DBG_8192C("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
res = _FAIL;
goto exit;
}
xmitframe_swencrypt(padapter, pxmitframe);
if (bmcst == false)
update_attrib_vcs_info(padapter, pxmitframe);
else
pattrib->vcs_mode = NONE_VCS;
exit:
return res;
}
/* broadcast or multicast management pkt use BIP, unicast management pkt use CCMP encryption */
s32 rtw_mgmt_xmitframe_coalesce(struct adapter *padapter, _pkt *pkt, struct xmit_frame *pxmitframe)
{
u8 *pframe, *mem_start = NULL, *tmp_buf = NULL;
u8 subtype;
struct sta_info *psta = NULL;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
s32 bmcst = IS_MCAST(pattrib->ra);
u8 *BIP_AAD = NULL;
u8 *MGMT_body = NULL;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct ieee80211_hdr *pwlanhdr;
u8 MME[_MME_IE_LENGTH_];
u32 ori_len;
mem_start = pframe = (u8 *)(pxmitframe->buf_addr) + TXDESC_OFFSET;
pwlanhdr = (struct ieee80211_hdr *)pframe;
ori_len = BIP_AAD_SIZE+pattrib->pktlen;
tmp_buf = BIP_AAD = rtw_zmalloc(ori_len);
subtype = GetFrameSubType(pframe); /* bit(7)~bit(2) */
if (!BIP_AAD)
return _FAIL;
spin_lock_bh(&padapter->security_key_mutex);
/* only support station mode */
if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE) || !check_fwstate(pmlmepriv, _FW_LINKED))
goto xmitframe_coalesce_success;
/* IGTK key is not install, it may not support 802.11w */
if (padapter->securitypriv.binstallBIPkey != true) {
DBG_871X("no instll BIP key\n");
goto xmitframe_coalesce_success;
}
/* station mode doesn't need TX BIP, just ready the code */
if (bmcst) {
int frame_body_len;
u8 mic[16];
memset(MME, 0, 18);
/* other types doesn't need the BIP */
if (GetFrameSubType(pframe) != WIFI_DEAUTH && GetFrameSubType(pframe) != WIFI_DISASSOC)
goto xmitframe_coalesce_fail;
MGMT_body = pframe + sizeof(struct ieee80211_hdr_3addr);
pframe += pattrib->pktlen;
/* octent 0 and 1 is key index , BIP keyid is 4 or 5, LSB only need octent 0 */
MME[0] = padapter->securitypriv.dot11wBIPKeyid;
/* copy packet number */
memcpy(&MME[2], &pmlmeext->mgnt_80211w_IPN, 6);
/* increase the packet number */
pmlmeext->mgnt_80211w_IPN++;
/* add MME IE with MIC all zero, MME string doesn't include element id and length */
pframe = rtw_set_ie(pframe, _MME_IE_, 16,
MME, &pattrib->pktlen);
pattrib->last_txcmdsz = pattrib->pktlen;
/* total frame length - header length */
frame_body_len = pattrib->pktlen - sizeof(struct ieee80211_hdr_3addr);
/* conscruct AAD, copy frame control field */
memcpy(BIP_AAD, &pwlanhdr->frame_control, 2);
ClearRetry(BIP_AAD);
ClearPwrMgt(BIP_AAD);
ClearMData(BIP_AAD);
/* conscruct AAD, copy address 1 to address 3 */
memcpy(BIP_AAD+2, pwlanhdr->addr1, 18);
/* copy management fram body */
memcpy(BIP_AAD+BIP_AAD_SIZE, MGMT_body, frame_body_len);
/* calculate mic */
if (omac1_aes_128(padapter->securitypriv.dot11wBIPKey[padapter->securitypriv.dot11wBIPKeyid].skey
, BIP_AAD, BIP_AAD_SIZE+frame_body_len, mic))
goto xmitframe_coalesce_fail;
/* copy right BIP mic value, total is 128bits, we use the 0~63 bits */
memcpy(pframe-8, mic, 8);
} else { /* unicast mgmt frame TX */
/* start to encrypt mgmt frame */
if (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC ||
subtype == WIFI_REASSOCREQ || subtype == WIFI_ACTION) {
if (pattrib->psta)
psta = pattrib->psta;
else
psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
if (!psta) {
DBG_871X("%s, psta ==NUL\n", __func__);
goto xmitframe_coalesce_fail;
}
if (!(psta->state & _FW_LINKED) || !pxmitframe->buf_addr) {
DBG_871X("%s, not _FW_LINKED or addr null\n", __func__);
goto xmitframe_coalesce_fail;
}
/* according 802.11-2012 standard, these five types are not robust types */
if (subtype == WIFI_ACTION &&
(pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_PUBLIC ||
pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_HT ||
pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_UNPROTECTED_WNM ||
pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_SELF_PROTECTED ||
pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_P2P))
goto xmitframe_coalesce_fail;
/* before encrypt dump the management packet content */
if (pattrib->encrypt > 0)
memcpy(pattrib->dot118021x_UncstKey.skey, psta->dot118021x_UncstKey.skey, 16);
/* bakeup original management packet */
memcpy(tmp_buf, pframe, pattrib->pktlen);
/* move to data portion */
pframe += pattrib->hdrlen;
/* 802.11w unicast management packet must be _AES_ */
pattrib->iv_len = 8;
/* it's MIC of AES */
pattrib->icv_len = 8;
switch (pattrib->encrypt) {
case _AES_:
/* set AES IV header */
AES_IV(pattrib->iv, psta->dot11wtxpn, 0);
break;
default:
goto xmitframe_coalesce_fail;
}
/* insert iv header into management frame */
memcpy(pframe, pattrib->iv, pattrib->iv_len);
pframe += pattrib->iv_len;
/* copy mgmt data portion after CCMP header */
memcpy(pframe, tmp_buf+pattrib->hdrlen, pattrib->pktlen-pattrib->hdrlen);
/* move pframe to end of mgmt pkt */
pframe += pattrib->pktlen-pattrib->hdrlen;
/* add 8 bytes CCMP IV header to length */
pattrib->pktlen += pattrib->iv_len;
if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
memcpy(pframe, pattrib->icv, pattrib->icv_len);
pframe += pattrib->icv_len;
}
/* add 8 bytes MIC */
pattrib->pktlen += pattrib->icv_len;
/* set final tx command size */
pattrib->last_txcmdsz = pattrib->pktlen;
/* set protected bit must be beofre SW encrypt */
SetPrivacy(mem_start);
/* software encrypt */
xmitframe_swencrypt(padapter, pxmitframe);
}
}
xmitframe_coalesce_success:
spin_unlock_bh(&padapter->security_key_mutex);
kfree(BIP_AAD);
return _SUCCESS;
xmitframe_coalesce_fail:
spin_unlock_bh(&padapter->security_key_mutex);
kfree(BIP_AAD);
return _FAIL;
}
/* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
* IEEE LLC/SNAP header contains 8 octets
* First 3 octets comprise the LLC portion
* SNAP portion, 5 octets, is divided into two fields:
*Organizationally Unique Identifier(OUI), 3 octets,
*type, defined by that organization, 2 octets.
*/
s32 rtw_put_snap(u8 *data, u16 h_proto)
{
struct ieee80211_snap_hdr *snap;
u8 *oui;
snap = (struct ieee80211_snap_hdr *)data;
snap->dsap = 0xaa;
snap->ssap = 0xaa;
snap->ctrl = 0x03;
if (h_proto == 0x8137 || h_proto == 0x80f3)
oui = P802_1H_OUI;
else
oui = RFC1042_OUI;
snap->oui[0] = oui[0];
snap->oui[1] = oui[1];
snap->oui[2] = oui[2];
*(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
return SNAP_SIZE + sizeof(u16);
}
void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
{
uint protection;
u8 *perp;
sint erp_len;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
switch (pxmitpriv->vcs_setting) {
case DISABLE_VCS:
pxmitpriv->vcs = NONE_VCS;
break;
case ENABLE_VCS:
break;
case AUTO_VCS:
default:
perp = rtw_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
if (!perp)
pxmitpriv->vcs = NONE_VCS;
else {
protection = (*(perp + 2)) & BIT(1);
if (protection) {
if (pregistrypriv->vcs_type == RTS_CTS)
pxmitpriv->vcs = RTS_CTS;
else
pxmitpriv->vcs = CTS_TO_SELF;
} else
pxmitpriv->vcs = NONE_VCS;
}
break;
}
}
void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
{
struct sta_info *psta = NULL;
struct stainfo_stats *pstats = NULL;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
u8 pkt_num = 1;
if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) {
pkt_num = pxmitframe->agg_num;
pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pkt_num;
pxmitpriv->tx_pkts += pkt_num;
pxmitpriv->tx_bytes += sz;
psta = pxmitframe->attrib.psta;
if (psta) {
pstats = &psta->sta_stats;
pstats->tx_pkts += pkt_num;
pstats->tx_bytes += sz;
}
}
}
static struct xmit_buf *__rtw_alloc_cmd_xmitbuf(struct xmit_priv *pxmitpriv,
enum cmdbuf_type buf_type)
{
struct xmit_buf *pxmitbuf = NULL;
pxmitbuf = &pxmitpriv->pcmd_xmitbuf[buf_type];
if (pxmitbuf) {
pxmitbuf->priv_data = NULL;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
pxmitbuf->agg_num = 0;
pxmitbuf->pg_num = 0;
if (pxmitbuf->sctx) {
DBG_871X("%s pxmitbuf->sctx is not NULL\n", __func__);
rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
}
} else
DBG_871X("%s fail, no xmitbuf available !!!\n", __func__);
return pxmitbuf;
}
struct xmit_frame *__rtw_alloc_cmdxmitframe(struct xmit_priv *pxmitpriv,
enum cmdbuf_type buf_type)
{
struct xmit_frame *pcmdframe;
struct xmit_buf *pxmitbuf;
pcmdframe = rtw_alloc_xmitframe(pxmitpriv);
if (!pcmdframe) {
DBG_871X("%s, alloc xmitframe fail\n", __func__);
return NULL;
}
pxmitbuf = __rtw_alloc_cmd_xmitbuf(pxmitpriv, buf_type);
if (!pxmitbuf) {
DBG_871X("%s, alloc xmitbuf fail\n", __func__);
rtw_free_xmitframe(pxmitpriv, pcmdframe);
return NULL;
}
pcmdframe->frame_tag = MGNT_FRAMETAG;
pcmdframe->pxmitbuf = pxmitbuf;
pcmdframe->buf_addr = pxmitbuf->pbuf;
pxmitbuf->priv_data = pcmdframe;
return pcmdframe;
}
struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
{
_irqL irqL;
struct xmit_buf *pxmitbuf = NULL;
struct list_head *plist, *phead;
struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
spin_lock_irqsave(&pfree_queue->lock, irqL);
if (list_empty(&pfree_queue->queue)) {
pxmitbuf = NULL;
} else {
phead = get_list_head(pfree_queue);
plist = get_next(phead);
pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list);
list_del_init(&pxmitbuf->list);
}
if (pxmitbuf) {
pxmitpriv->free_xmit_extbuf_cnt--;
#ifdef DBG_XMIT_BUF_EXT
DBG_871X("DBG_XMIT_BUF_EXT ALLOC no =%d, free_xmit_extbuf_cnt =%d\n", pxmitbuf->no, pxmitpriv->free_xmit_extbuf_cnt);
#endif
pxmitbuf->priv_data = NULL;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
pxmitbuf->agg_num = 1;
if (pxmitbuf->sctx) {
DBG_871X("%s pxmitbuf->sctx is not NULL\n", __func__);
rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
}
}
spin_unlock_irqrestore(&pfree_queue->lock, irqL);
return pxmitbuf;
}
s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
{
_irqL irqL;
struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
if (!pxmitbuf)
return _FAIL;
spin_lock_irqsave(&pfree_queue->lock, irqL);
list_del_init(&pxmitbuf->list);
list_add_tail(&pxmitbuf->list, get_list_head(pfree_queue));
pxmitpriv->free_xmit_extbuf_cnt++;
#ifdef DBG_XMIT_BUF_EXT
DBG_871X("DBG_XMIT_BUF_EXT FREE no =%d, free_xmit_extbuf_cnt =%d\n", pxmitbuf->no, pxmitpriv->free_xmit_extbuf_cnt);
#endif
spin_unlock_irqrestore(&pfree_queue->lock, irqL);
return _SUCCESS;
}
struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
{
_irqL irqL;
struct xmit_buf *pxmitbuf = NULL;
struct list_head *plist, *phead;
struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL);
if (list_empty(&pfree_xmitbuf_queue->queue)) {
pxmitbuf = NULL;
} else {
phead = get_list_head(pfree_xmitbuf_queue);
plist = get_next(phead);
pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list);
list_del_init(&pxmitbuf->list);
}
if (pxmitbuf) {
pxmitpriv->free_xmitbuf_cnt--;
#ifdef DBG_XMIT_BUF
DBG_871X("DBG_XMIT_BUF ALLOC no =%d, free_xmitbuf_cnt =%d\n", pxmitbuf->no, pxmitpriv->free_xmitbuf_cnt);
#endif
pxmitbuf->priv_data = NULL;
pxmitbuf->len = 0;
pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
pxmitbuf->agg_num = 0;
pxmitbuf->pg_num = 0;
if (pxmitbuf->sctx) {
DBG_871X("%s pxmitbuf->sctx is not NULL\n", __func__);
rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
}
}
#ifdef DBG_XMIT_BUF
else
DBG_871X("DBG_XMIT_BUF rtw_alloc_xmitbuf return NULL\n");
#endif
spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL);
return pxmitbuf;
}
s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
{
_irqL irqL;
struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
if (!pxmitbuf)
return _FAIL;
if (pxmitbuf->sctx) {
DBG_871X("%s pxmitbuf->sctx is not NULL\n", __func__);
rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_FREE);
}
if (pxmitbuf->buf_tag == XMITBUF_CMD) {
} else if (pxmitbuf->buf_tag == XMITBUF_MGNT) {
rtw_free_xmitbuf_ext(pxmitpriv, pxmitbuf);
} else {
spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL);
list_del_init(&pxmitbuf->list);
list_add_tail(&pxmitbuf->list,
get_list_head(pfree_xmitbuf_queue));
pxmitpriv->free_xmitbuf_cnt++;
#ifdef DBG_XMIT_BUF
DBG_871X("DBG_XMIT_BUF FREE no =%d, free_xmitbuf_cnt =%d\n", pxmitbuf->no, pxmitpriv->free_xmitbuf_cnt);
#endif
spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL);
}
return _SUCCESS;
}
static void rtw_init_xmitframe(struct xmit_frame *pxframe)
{
if (pxframe) { /* default value setting */
pxframe->buf_addr = NULL;
pxframe->pxmitbuf = NULL;
memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib));
pxframe->frame_tag = DATA_FRAMETAG;
pxframe->pg_num = 1;
pxframe->agg_num = 1;
pxframe->ack_report = 0;
}
}
/*
Calling context:
1. OS_TXENTRY
2. RXENTRY (rx_thread or RX_ISR/RX_CallBack)
If we turn on USE_RXTHREAD, then, no need for critical section.
Otherwise, we must use _enter/_exit critical to protect free_xmit_queue...
Must be very very cautious...
*/
struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)/* _queue *pfree_xmit_queue) */
{
/*
Please remember to use all the osdep_service api,
and lock/unlock or _enter/_exit critical to protect
pfree_xmit_queue
*/
struct xmit_frame *pxframe = NULL;
struct list_head *plist, *phead;
struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
spin_lock_bh(&pfree_xmit_queue->lock);
if (list_empty(&pfree_xmit_queue->queue)) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe:%d\n", pxmitpriv->free_xmitframe_cnt));
pxframe = NULL;
} else {
phead = get_list_head(pfree_xmit_queue);
plist = get_next(phead);
pxframe = LIST_CONTAINOR(plist, struct xmit_frame, list);
list_del_init(&pxframe->list);
pxmitpriv->free_xmitframe_cnt--;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe():free_xmitframe_cnt =%d\n", pxmitpriv->free_xmitframe_cnt));
}
spin_unlock_bh(&pfree_xmit_queue->lock);
rtw_init_xmitframe(pxframe);
return pxframe;
}
struct xmit_frame *rtw_alloc_xmitframe_ext(struct xmit_priv *pxmitpriv)
{
struct xmit_frame *pxframe = NULL;
struct list_head *plist, *phead;
struct __queue *queue = &pxmitpriv->free_xframe_ext_queue;
spin_lock_bh(&queue->lock);
if (list_empty(&queue->queue)) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe_ext:%d\n", pxmitpriv->free_xframe_ext_cnt));
pxframe = NULL;
} else {
phead = get_list_head(queue);
plist = get_next(phead);
pxframe = LIST_CONTAINOR(plist, struct xmit_frame, list);
list_del_init(&pxframe->list);
pxmitpriv->free_xframe_ext_cnt--;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe_ext():free_xmitframe_cnt =%d\n", pxmitpriv->free_xframe_ext_cnt));
}
spin_unlock_bh(&queue->lock);
rtw_init_xmitframe(pxframe);
return pxframe;
}
struct xmit_frame *rtw_alloc_xmitframe_once(struct xmit_priv *pxmitpriv)
{
struct xmit_frame *pxframe = NULL;
u8 *alloc_addr;
alloc_addr = rtw_zmalloc(sizeof(struct xmit_frame) + 4);
if (!alloc_addr)
goto exit;
pxframe = (struct xmit_frame *)N_BYTE_ALIGMENT((SIZE_PTR)(alloc_addr), 4);
pxframe->alloc_addr = alloc_addr;
pxframe->padapter = pxmitpriv->adapter;
pxframe->frame_tag = NULL_FRAMETAG;
pxframe->pkt = NULL;
pxframe->buf_addr = NULL;
pxframe->pxmitbuf = NULL;
rtw_init_xmitframe(pxframe);
DBG_871X("################## %s ##################\n", __func__);
exit:
return pxframe;
}
s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
{
struct __queue *queue = NULL;
struct adapter *padapter = pxmitpriv->adapter;
_pkt *pndis_pkt = NULL;
if (!pxmitframe) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("======rtw_free_xmitframe():pxmitframe == NULL!!!!!!!!!!\n"));
goto exit;
}
if (pxmitframe->pkt) {
pndis_pkt = pxmitframe->pkt;
pxmitframe->pkt = NULL;
}
if (pxmitframe->alloc_addr) {
DBG_871X("################## %s with alloc_addr ##################\n", __func__);
kfree(pxmitframe->alloc_addr);
goto check_pkt_complete;
}
if (pxmitframe->ext_tag == 0)
queue = &pxmitpriv->free_xmit_queue;
else if (pxmitframe->ext_tag == 1)
queue = &pxmitpriv->free_xframe_ext_queue;
else {
}
spin_lock_bh(&queue->lock);
list_del_init(&pxmitframe->list);
list_add_tail(&pxmitframe->list, get_list_head(queue));
if (pxmitframe->ext_tag == 0) {
pxmitpriv->free_xmitframe_cnt++;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe():free_xmitframe_cnt =%d\n", pxmitpriv->free_xmitframe_cnt));
} else if (pxmitframe->ext_tag == 1) {
pxmitpriv->free_xframe_ext_cnt++;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe():free_xframe_ext_cnt =%d\n", pxmitpriv->free_xframe_ext_cnt));
} else {
}
spin_unlock_bh(&queue->lock);
check_pkt_complete:
if (pndis_pkt)
rtw_os_pkt_complete(padapter, pndis_pkt);
exit:
return _SUCCESS;
}
void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
{
struct list_head *plist, *phead;
struct xmit_frame *pxmitframe;
spin_lock_bh(&pframequeue->lock);
phead = get_list_head(pframequeue);
plist = get_next(phead);
while (phead != plist) {
pxmitframe = LIST_CONTAINOR(plist, struct xmit_frame, list);
plist = get_next(plist);
rtw_free_xmitframe(pxmitpriv, pxmitframe);
}
spin_unlock_bh(&pframequeue->lock);
}
s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
DBG_COUNTER(padapter->tx_logs.core_tx_enqueue);
if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL) {
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
("rtw_xmitframe_enqueue: drop xmit pkt for classifier fail\n"));
return _FAIL;
}
return _SUCCESS;
}
struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *psta, sint up, u8 *ac)
{
struct tx_servq *ptxservq = NULL;
switch (up) {
case 1:
case 2:
ptxservq = &psta->sta_xmitpriv.bk_q;
*(ac) = 3;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BK\n"));
break;
case 4:
case 5:
ptxservq = &psta->sta_xmitpriv.vi_q;
*(ac) = 1;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VI\n"));
break;
case 6:
case 7:
ptxservq = &psta->sta_xmitpriv.vo_q;
*(ac) = 0;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VO\n"));
break;
case 0:
case 3:
default:
ptxservq = &psta->sta_xmitpriv.be_q;
*(ac) = 2;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BE\n"));
break;
}
return ptxservq;
}
/*
* Will enqueue pxmitframe to the proper queue,
* and indicate it to xx_pending list.....
*/
s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
u8 ac_index;
struct sta_info *psta;
struct tx_servq *ptxservq;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
sint res = _SUCCESS;
DBG_COUNTER(padapter->tx_logs.core_tx_enqueue_class);
psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
if (pattrib->psta != psta) {
DBG_COUNTER(padapter->tx_logs.core_tx_enqueue_class_err_sta);
DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pattrib->psta, psta);
return _FAIL;
}
if (!psta) {
DBG_COUNTER(padapter->tx_logs.core_tx_enqueue_class_err_nosta);
res = _FAIL;
DBG_8192C("rtw_xmit_classifier: psta == NULL\n");
RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmit_classifier: psta == NULL\n"));
goto exit;
}
if (!(psta->state & _FW_LINKED)) {
DBG_COUNTER(padapter->tx_logs.core_tx_enqueue_class_err_fwlink);
DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state);
return _FAIL;
}
ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
if (list_empty(&ptxservq->tx_pending))
list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
ptxservq->qcnt++;
phwxmits[ac_index].accnt++;
exit:
return res;
}
s32 rtw_alloc_hwxmits(struct adapter *padapter)
{
struct hw_xmit *hwxmits;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
pxmitpriv->hwxmits = NULL;
pxmitpriv->hwxmits = rtw_zmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry);
if (!pxmitpriv->hwxmits)
return _FAIL;
hwxmits = pxmitpriv->hwxmits;
if (pxmitpriv->hwxmit_entry == 5) {
hwxmits[0] .sta_queue = &pxmitpriv->bm_pending;
hwxmits[1] .sta_queue = &pxmitpriv->vo_pending;
hwxmits[2] .sta_queue = &pxmitpriv->vi_pending;
hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
hwxmits[4] .sta_queue = &pxmitpriv->be_pending;
} else if (pxmitpriv->hwxmit_entry == 4) {
hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
} else {
}
return _SUCCESS;
}
void rtw_free_hwxmits(struct adapter *padapter)
{
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
kfree(pxmitpriv->hwxmits);
}
void rtw_init_hwxmits(struct hw_xmit *phwxmit, sint entry)
{
sint i;
for (i = 0; i < entry; i++, phwxmit++)
phwxmit->accnt = 0;
}
u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
{
u32 addr;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
switch (pattrib->qsel) {
case 0:
case 3:
addr = BE_QUEUE_INX;
break;
case 1:
case 2:
addr = BK_QUEUE_INX;
break;
case 4:
case 5:
addr = VI_QUEUE_INX;
break;
case 6:
case 7:
addr = VO_QUEUE_INX;
break;
case 0x10:
addr = BCN_QUEUE_INX;
break;
case 0x11:/* BC/MC in PS (HIQ) */
addr = HIGH_QUEUE_INX;
break;
case 0x12:
default:
addr = MGT_QUEUE_INX;
break;
}
return addr;
}
static void do_queue_select(struct adapter *padapter, struct pkt_attrib *pattrib)
{
u8 qsel;
qsel = pattrib->priority;
RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("### do_queue_select priority =%d , qsel = %d\n", pattrib->priority, qsel));
pattrib->qsel = qsel;
}
/*
* The main transmit(tx) entry
*
* Return
*1 enqueue
*0 success, hardware will handle this xmit frame(packet)
*<0 fail
*/
s32 rtw_xmit(struct adapter *padapter, _pkt **ppkt)
{
static unsigned long start;
static u32 drop_cnt;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct xmit_frame *pxmitframe = NULL;
s32 res;
DBG_COUNTER(padapter->tx_logs.core_tx);
if (start == 0)
start = jiffies;
pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
if (jiffies_to_msecs(jiffies - start) > 2000) {
if (drop_cnt)
DBG_871X("DBG_TX_DROP_FRAME %s no more pxmitframe, drop_cnt:%u\n", __func__, drop_cnt);
start = jiffies;
drop_cnt = 0;
}
if (!pxmitframe) {
drop_cnt++;
RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: no more pxmitframe\n", __func__));
DBG_COUNTER(padapter->tx_logs.core_tx_err_pxmitframe);
return -1;
}
res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
if (res == _FAIL) {
RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: update attrib fail\n", __func__));
#ifdef DBG_TX_DROP_FRAME
DBG_871X("DBG_TX_DROP_FRAME %s update attrib fail\n", __func__);
#endif
rtw_free_xmitframe(pxmitpriv, pxmitframe);
return -1;
}
pxmitframe->pkt = *ppkt;
do_queue_select(padapter, &pxmitframe->attrib);
spin_lock_bh(&pxmitpriv->lock);
if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe) == true) {
spin_unlock_bh(&pxmitpriv->lock);
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue);
return 1;
}
spin_unlock_bh(&pxmitpriv->lock);
/* pre_xmitframe */
if (rtw_hal_xmit(padapter, pxmitframe) == false)
return 1;
return 0;
}
#define RTW_HIQ_FILTER_ALLOW_ALL 0
#define RTW_HIQ_FILTER_ALLOW_SPECIAL 1
#define RTW_HIQ_FILTER_DENY_ALL 2
inline bool xmitframe_hiq_filter(struct xmit_frame *xmitframe)
{
bool allow = false;
struct adapter *adapter = xmitframe->padapter;
struct registry_priv *registry = &adapter->registrypriv;
if (registry->hiq_filter == RTW_HIQ_FILTER_ALLOW_SPECIAL) {
struct pkt_attrib *attrib = &xmitframe->attrib;
if (attrib->ether_type == 0x0806
|| attrib->ether_type == 0x888e
|| attrib->dhcp_pkt
) {
DBG_871X(FUNC_ADPT_FMT" ether_type:0x%04x%s\n", FUNC_ADPT_ARG(xmitframe->padapter)
, attrib->ether_type, attrib->dhcp_pkt?" DHCP":"");
allow = true;
}
} else if (registry->hiq_filter == RTW_HIQ_FILTER_ALLOW_ALL)
allow = true;
else if (registry->hiq_filter == RTW_HIQ_FILTER_DENY_ALL) {
} else
rtw_warn_on(1);
return allow;
}
sint xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
sint ret = false;
struct sta_info *psta = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
sint bmcst = IS_MCAST(pattrib->ra);
bool update_tim = false;
if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == false) {
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_warn_fwstate);
return ret;
}
psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
if (pattrib->psta != psta) {
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_warn_sta);
DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pattrib->psta, psta);
return false;
}
if (!psta) {
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_warn_nosta);
DBG_871X("%s, psta ==NUL\n", __func__);
return false;
}
if (!(psta->state & _FW_LINKED)) {
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_warn_link);
DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state);
return false;
}
if (pattrib->triggered == 1) {
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_warn_trigger);
if (bmcst && xmitframe_hiq_filter(pxmitframe))
pattrib->qsel = 0x11;/* HIQ */
return ret;
}
if (bmcst) {
spin_lock_bh(&psta->sleep_q.lock);
if (pstapriv->sta_dz_bitmap) { /* if anyone sta is in ps mode */
/* pattrib->qsel = 0x11;HIQ */
list_del_init(&pxmitframe->list);
list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
psta->sleepq_len++;
if (!(pstapriv->tim_bitmap & BIT(0)))
update_tim = true;
pstapriv->tim_bitmap |= BIT(0);
pstapriv->sta_dz_bitmap |= BIT(0);
if (update_tim)
update_beacon(padapter, _TIM_IE_, NULL, true);
else
chk_bmc_sleepq_cmd(padapter);
ret = true;
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_mcast);
}
spin_unlock_bh(&psta->sleep_q.lock);
return ret;
}
spin_lock_bh(&psta->sleep_q.lock);
if (psta->state&WIFI_SLEEP_STATE) {
u8 wmmps_ac = 0;
if (pstapriv->sta_dz_bitmap & BIT(psta->aid)) {
list_del_init(&pxmitframe->list);
list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
psta->sleepq_len++;
switch (pattrib->priority) {
case 1:
case 2:
wmmps_ac = psta->uapsd_bk&BIT(0);
break;
case 4:
case 5:
wmmps_ac = psta->uapsd_vi&BIT(0);
break;
case 6:
case 7:
wmmps_ac = psta->uapsd_vo&BIT(0);
break;
case 0:
case 3:
default:
wmmps_ac = psta->uapsd_be&BIT(0);
break;
}
if (wmmps_ac)
psta->sleepq_ac_len++;
if (((psta->has_legacy_ac) && (!wmmps_ac)) || ((!psta->has_legacy_ac) && (wmmps_ac))) {
if (!(pstapriv->tim_bitmap & BIT(psta->aid)))
update_tim = true;
pstapriv->tim_bitmap |= BIT(psta->aid);
if (update_tim)
/* upate BCN for TIM IE */
update_beacon(padapter, _TIM_IE_, NULL, true);
}
ret = true;
DBG_COUNTER(padapter->tx_logs.core_tx_ap_enqueue_ucast);
}
}
spin_unlock_bh(&psta->sleep_q.lock);
return ret;
}
static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
{
sint ret;
struct list_head *plist, *phead;
u8 ac_index;
struct tx_servq *ptxservq;
struct pkt_attrib *pattrib;
struct xmit_frame *pxmitframe;
struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
phead = get_list_head(pframequeue);
plist = get_next(phead);
while (phead != plist) {
pxmitframe = LIST_CONTAINOR(plist, struct xmit_frame, list);
plist = get_next(plist);
pattrib = &pxmitframe->attrib;
pattrib->triggered = 0;
ret = xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
if (true == ret) {
ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
ptxservq->qcnt--;
phwxmits[ac_index].accnt--;
} else {
}
}
}
void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
{
struct sta_info *psta_bmc;
struct sta_xmit_priv *pstaxmitpriv;
struct sta_priv *pstapriv = &padapter->stapriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
pstaxmitpriv = &psta->sta_xmitpriv;
/* for BC/MC Frames */
psta_bmc = rtw_get_bcmc_stainfo(padapter);
spin_lock_bh(&pxmitpriv->lock);
psta->state |= WIFI_SLEEP_STATE;
pstapriv->sta_dz_bitmap |= BIT(psta->aid);
dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
list_del_init(&pstaxmitpriv->vo_q.tx_pending);
dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
list_del_init(&pstaxmitpriv->vi_q.tx_pending);
dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
list_del_init(&pstaxmitpriv->be_q.tx_pending);
dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
list_del_init(&pstaxmitpriv->bk_q.tx_pending);
/* for BC/MC Frames */
pstaxmitpriv = &psta_bmc->sta_xmitpriv;
dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
list_del_init(&pstaxmitpriv->be_q.tx_pending);
spin_unlock_bh(&pxmitpriv->lock);
}
void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
{
u8 update_mask = 0, wmmps_ac = 0;
struct sta_info *psta_bmc;
struct list_head *xmitframe_plist, *xmitframe_phead;
struct xmit_frame *pxmitframe = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
psta_bmc = rtw_get_bcmc_stainfo(padapter);
spin_lock_bh(&pxmitpriv->lock);
xmitframe_phead = get_list_head(&psta->sleep_q);
xmitframe_plist = get_next(xmitframe_phead);
while (xmitframe_phead != xmitframe_plist) {
pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
xmitframe_plist = get_next(xmitframe_plist);
list_del_init(&pxmitframe->list);
switch (pxmitframe->attrib.priority) {
case 1:
case 2:
wmmps_ac = psta->uapsd_bk&BIT(1);
break;
case 4:
case 5:
wmmps_ac = psta->uapsd_vi&BIT(1);
break;
case 6:
case 7:
wmmps_ac = psta->uapsd_vo&BIT(1);
break;
case 0:
case 3:
default:
wmmps_ac = psta->uapsd_be&BIT(1);
break;
}
psta->sleepq_len--;
if (psta->sleepq_len > 0)
pxmitframe->attrib.mdata = 1;
else
pxmitframe->attrib.mdata = 0;
if (wmmps_ac) {
psta->sleepq_ac_len--;
if (psta->sleepq_ac_len > 0) {
pxmitframe->attrib.mdata = 1;
pxmitframe->attrib.eosp = 0;
} else {
pxmitframe->attrib.mdata = 0;
pxmitframe->attrib.eosp = 1;
}
}
pxmitframe->attrib.triggered = 1;
rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
}
if (psta->sleepq_len == 0) {
if (pstapriv->tim_bitmap & BIT(psta->aid))
update_mask = BIT(0);
pstapriv->tim_bitmap &= ~BIT(psta->aid);
if (psta->state&WIFI_SLEEP_STATE)
psta->state ^= WIFI_SLEEP_STATE;
if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
DBG_871X("%s alive check\n", __func__);
psta->expire_to = pstapriv->expire_to;
psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
}
pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
}
/* for BC/MC Frames */
if (!psta_bmc)
goto _exit;
if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) { /* no any sta in ps mode */
xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
xmitframe_plist = get_next(xmitframe_phead);
while (xmitframe_phead != xmitframe_plist) {
pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
xmitframe_plist = get_next(xmitframe_plist);
list_del_init(&pxmitframe->list);
psta_bmc->sleepq_len--;
if (psta_bmc->sleepq_len > 0)
pxmitframe->attrib.mdata = 1;
else
pxmitframe->attrib.mdata = 0;
pxmitframe->attrib.triggered = 1;
rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
}
if (psta_bmc->sleepq_len == 0) {
if (pstapriv->tim_bitmap & BIT(0))
update_mask |= BIT(1);
pstapriv->tim_bitmap &= ~BIT(0);
pstapriv->sta_dz_bitmap &= ~BIT(0);
}
}
_exit:
spin_unlock_bh(&pxmitpriv->lock);
if (update_mask)
update_beacon(padapter, _TIM_IE_, NULL, true);
}
void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
{
u8 wmmps_ac = 0;
struct list_head *xmitframe_plist, *xmitframe_phead;
struct xmit_frame *pxmitframe = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
spin_lock_bh(&pxmitpriv->lock);
xmitframe_phead = get_list_head(&psta->sleep_q);
xmitframe_plist = get_next(xmitframe_phead);
while (xmitframe_phead != xmitframe_plist) {
pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
xmitframe_plist = get_next(xmitframe_plist);
switch (pxmitframe->attrib.priority) {
case 1:
case 2:
wmmps_ac = psta->uapsd_bk&BIT(1);
break;
case 4:
case 5:
wmmps_ac = psta->uapsd_vi&BIT(1);
break;
case 6:
case 7:
wmmps_ac = psta->uapsd_vo&BIT(1);
break;
case 0:
case 3:
default:
wmmps_ac = psta->uapsd_be&BIT(1);
break;
}
if (!wmmps_ac)
continue;
list_del_init(&pxmitframe->list);
psta->sleepq_len--;
psta->sleepq_ac_len--;
if (psta->sleepq_ac_len > 0) {
pxmitframe->attrib.mdata = 1;
pxmitframe->attrib.eosp = 0;
} else {
pxmitframe->attrib.mdata = 0;
pxmitframe->attrib.eosp = 1;
}
pxmitframe->attrib.triggered = 1;
rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
pstapriv->tim_bitmap &= ~BIT(psta->aid);
update_beacon(padapter, _TIM_IE_, NULL, true);
}
}
spin_unlock_bh(&pxmitpriv->lock);
}
void enqueue_pending_xmitbuf(
struct xmit_priv *pxmitpriv,
struct xmit_buf *pxmitbuf)
{
struct __queue *pqueue;
struct adapter *pri_adapter = pxmitpriv->adapter;
pqueue = &pxmitpriv->pending_xmitbuf_queue;
spin_lock_bh(&pqueue->lock);
list_del_init(&pxmitbuf->list);
list_add_tail(&pxmitbuf->list, get_list_head(pqueue));
spin_unlock_bh(&pqueue->lock);
complete(&pri_adapter->xmitpriv.xmit_comp);
}
void enqueue_pending_xmitbuf_to_head(
struct xmit_priv *pxmitpriv,
struct xmit_buf *pxmitbuf)
{
struct __queue *pqueue;
pqueue = &pxmitpriv->pending_xmitbuf_queue;
spin_lock_bh(&pqueue->lock);
list_del_init(&pxmitbuf->list);
list_add(&pxmitbuf->list, get_list_head(pqueue));
spin_unlock_bh(&pqueue->lock);
}
struct xmit_buf *dequeue_pending_xmitbuf(
struct xmit_priv *pxmitpriv)
{
struct xmit_buf *pxmitbuf;
struct __queue *pqueue;
pxmitbuf = NULL;
pqueue = &pxmitpriv->pending_xmitbuf_queue;
spin_lock_bh(&pqueue->lock);
if (!list_empty(&pqueue->queue)) {
struct list_head *plist, *phead;
phead = get_list_head(pqueue);
plist = get_next(phead);
pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list);
list_del_init(&pxmitbuf->list);
}
spin_unlock_bh(&pqueue->lock);
return pxmitbuf;
}
struct xmit_buf *dequeue_pending_xmitbuf_under_survey(
struct xmit_priv *pxmitpriv)
{
struct xmit_buf *pxmitbuf;
struct __queue *pqueue;
pxmitbuf = NULL;
pqueue = &pxmitpriv->pending_xmitbuf_queue;
spin_lock_bh(&pqueue->lock);
if (!list_empty(&pqueue->queue)) {
struct list_head *plist, *phead;
u8 type;
phead = get_list_head(pqueue);
plist = phead;
do {
plist = get_next(plist);
if (plist == phead)
break;
pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list);
type = GetFrameSubType(pxmitbuf->pbuf + TXDESC_OFFSET