Release 4.11 drivers/staging/rtl8712/rtl871x_sta_mgt.c
/******************************************************************************
* rtl871x_sta_mgt.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _RTL871X_STA_MGT_C_
#include "osdep_service.h"
#include "drv_types.h"
#include "recv_osdep.h"
#include "xmit_osdep.h"
#include "sta_info.h"
static void _init_stainfo(struct sta_info *psta)
{
memset((u8 *)psta, 0, sizeof(struct sta_info));
spin_lock_init(&psta->lock);
INIT_LIST_HEAD(&psta->list);
INIT_LIST_HEAD(&psta->hash_list);
_r8712_init_sta_xmit_priv(&psta->sta_xmitpriv);
_r8712_init_sta_recv_priv(&psta->sta_recvpriv);
INIT_LIST_HEAD(&psta->asoc_list);
INIT_LIST_HEAD(&psta->auth_list);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 80 | 95.24% | 2 | 66.67% |
| James A Shackleford | 4 | 4.76% | 1 | 33.33% |
| Total | 84 | 100.00% | 3 | 100.00% |
u32 _r8712_init_sta_priv(struct sta_priv *pstapriv)
{
struct sta_info *psta;
s32 i;
pstapriv->pallocated_stainfo_buf = kmalloc(sizeof(struct sta_info) *
NUM_STA + 4, GFP_ATOMIC);
if (!pstapriv->pallocated_stainfo_buf)
return _FAIL;
pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
((addr_t)(pstapriv->pallocated_stainfo_buf) & 3);
_init_queue(&pstapriv->free_sta_queue);
spin_lock_init(&pstapriv->sta_hash_lock);
pstapriv->asoc_sta_count = 0;
_init_queue(&pstapriv->sleep_q);
_init_queue(&pstapriv->wakeup_q);
psta = (struct sta_info *)(pstapriv->pstainfo_buf);
for (i = 0; i < NUM_STA; i++) {
_init_stainfo(psta);
INIT_LIST_HEAD(&(pstapriv->sta_hash[i]));
list_add_tail(&psta->list, &pstapriv->free_sta_queue.queue);
psta++;
}
INIT_LIST_HEAD(&pstapriv->asoc_list);
INIT_LIST_HEAD(&pstapriv->auth_list);
return _SUCCESS;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 181 | 94.76% | 1 | 16.67% |
| James A Shackleford | 6 | 3.14% | 3 | 50.00% |
| Vitaly Osipov | 3 | 1.57% | 1 | 16.67% |
| Bhumika Goyal | 1 | 0.52% | 1 | 16.67% |
| Total | 191 | 100.00% | 6 | 100.00% |
/* this function is used to free the memory of lock || sema for all stainfos */
static void mfree_all_stainfo(struct sta_priv *pstapriv)
{
unsigned long irqL;
struct list_head *plist, *phead;
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
phead = &pstapriv->free_sta_queue.queue;
plist = phead->next;
while (!end_of_queue_search(phead, plist))
plist = plist->next;
spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 67 | 90.54% | 1 | 25.00% |
| James A Shackleford | 6 | 8.11% | 2 | 50.00% |
| Luis de Bethencourt | 1 | 1.35% | 1 | 25.00% |
| Total | 74 | 100.00% | 4 | 100.00% |
u32 _r8712_free_sta_priv(struct sta_priv *pstapriv)
{
if (pstapriv) {
/* be done before free sta_hash_lock */
mfree_all_stainfo(pstapriv);
kfree(pstapriv->pallocated_stainfo_buf);
}
return _SUCCESS;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 30 | 93.75% | 1 | 50.00% |
| Amitoj Kaur Chawla | 2 | 6.25% | 1 | 50.00% |
| Total | 32 | 100.00% | 2 | 100.00% |
struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
{
s32 index;
struct list_head *phash_list;
struct sta_info *psta;
struct __queue *pfree_sta_queue;
struct recv_reorder_ctrl *preorder_ctrl;
int i = 0;
u16 wRxSeqInitialValue = 0xffff;
unsigned long flags;
pfree_sta_queue = &pstapriv->free_sta_queue;
spin_lock_irqsave(&pfree_sta_queue->lock, flags);
psta = list_first_entry_or_null(&pfree_sta_queue->queue,
struct sta_info, list);
if (psta) {
list_del_init(&psta->list);
_init_stainfo(psta);
memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
index = wifi_mac_hash(hwaddr);
if (index >= NUM_STA) {
psta = NULL;
goto exit;
}
phash_list = &pstapriv->sta_hash[index];
list_add_tail(&psta->hash_list, phash_list);
pstapriv->asoc_sta_count++;
/* For the SMC router, the sequence number of first packet of WPS handshake
* will be 0. In this case, this packet will be dropped by recv_decache function
* if we use the 0x00 as the default value for tid_rxseq variable. So, we
* initialize the tid_rxseq variable as the 0xffff.
*/
for (i = 0; i < 16; i++)
memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
&wRxSeqInitialValue, 2);
/* for A-MPDU Rx reordering buffer control */
for (i = 0; i < 16; i++) {
preorder_ctrl = &psta->recvreorder_ctrl[i];
preorder_ctrl->padapter = pstapriv->padapter;
preorder_ctrl->indicate_seq = 0xffff;
preorder_ctrl->wend_b = 0xffff;
preorder_ctrl->wsize_b = 64;
_init_queue(&preorder_ctrl->pending_recvframe_queue);
r8712_init_recv_timer(preorder_ctrl);
}
}
exit:
spin_unlock_irqrestore(&pfree_sta_queue->lock, flags);
return psta;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 267 | 96.74% | 1 | 25.00% |
| Geliang Tang | 7 | 2.54% | 1 | 25.00% |
| James A Shackleford | 2 | 0.72% | 2 | 50.00% |
| Total | 276 | 100.00% | 4 | 100.00% |
/* using pstapriv->sta_hash_lock to protect */
void r8712_free_stainfo(struct _adapter *padapter, struct sta_info *psta)
{
int i;
unsigned long irqL0;
struct __queue *pfree_sta_queue;
struct recv_reorder_ctrl *preorder_ctrl;
struct sta_xmit_priv *pstaxmitpriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct sta_priv *pstapriv = &padapter->stapriv;
if (psta == NULL)
return;
pfree_sta_queue = &pstapriv->free_sta_queue;
pstaxmitpriv = &psta->sta_xmitpriv;
spin_lock_irqsave(&(pxmitpriv->vo_pending.lock), irqL0);
r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
spin_unlock_irqrestore(&(pxmitpriv->vo_pending.lock), irqL0);
spin_lock_irqsave(&(pxmitpriv->vi_pending.lock), irqL0);
r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
spin_unlock_irqrestore(&(pxmitpriv->vi_pending.lock), irqL0);
spin_lock_irqsave(&(pxmitpriv->bk_pending.lock), irqL0);
r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
spin_unlock_irqrestore(&(pxmitpriv->bk_pending.lock), irqL0);
spin_lock_irqsave(&(pxmitpriv->be_pending.lock), irqL0);
r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
list_del_init(&(pstaxmitpriv->be_q.tx_pending));
spin_unlock_irqrestore(&(pxmitpriv->be_pending.lock), irqL0);
list_del_init(&psta->hash_list);
pstapriv->asoc_sta_count--;
/* re-init sta_info; 20061114 */
_r8712_init_sta_xmit_priv(&psta->sta_xmitpriv);
_r8712_init_sta_recv_priv(&psta->sta_recvpriv);
/* for A-MPDU Rx reordering buffer control,
* cancel reordering_ctrl_timer
*/
for (i = 0; i < 16; i++) {
preorder_ctrl = &psta->recvreorder_ctrl[i];
del_timer(&preorder_ctrl->reordering_ctrl_timer);
}
spin_lock(&(pfree_sta_queue->lock));
/* insert into free_sta_queue; 20061114 */
list_add_tail(&psta->list, &pfree_sta_queue->queue);
spin_unlock(&(pfree_sta_queue->lock));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 373 | 97.14% | 1 | 16.67% |
| James A Shackleford | 9 | 2.34% | 3 | 50.00% |
| Sudip Mukherjee | 1 | 0.26% | 1 | 16.67% |
| Raphaël Beamonte | 1 | 0.26% | 1 | 16.67% |
| Total | 384 | 100.00% | 6 | 100.00% |
/* free all stainfo which in sta_hash[all] */
void r8712_free_all_stainfo(struct _adapter *padapter)
{
unsigned long irqL;
struct list_head *plist, *phead;
s32 index;
struct sta_info *psta = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *pbcmc_stainfo = r8712_get_bcmc_stainfo(padapter);
if (pstapriv->asoc_sta_count == 1)
return;
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
for (index = 0; index < NUM_STA; index++) {
phead = &(pstapriv->sta_hash[index]);
plist = phead->next;
while (!end_of_queue_search(phead, plist)) {
psta = container_of(plist,
struct sta_info, hash_list);
plist = plist->next;
if (pbcmc_stainfo != psta)
r8712_free_stainfo(padapter, psta);
}
}
spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 151 | 96.18% | 1 | 25.00% |
| James A Shackleford | 4 | 2.55% | 1 | 25.00% |
| Luis de Bethencourt | 1 | 0.64% | 1 | 25.00% |
| Geliang Tang | 1 | 0.64% | 1 | 25.00% |
| Total | 157 | 100.00% | 4 | 100.00% |
/* any station allocated can be searched by hash list */
struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
{
unsigned long irqL;
struct list_head *plist, *phead;
struct sta_info *psta = NULL;
u32 index;
if (hwaddr == NULL)
return NULL;
index = wifi_mac_hash(hwaddr);
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
phead = &(pstapriv->sta_hash[index]);
plist = phead->next;
while (!end_of_queue_search(phead, plist)) {
psta = container_of(plist, struct sta_info, hash_list);
if ((!memcmp(psta->hwaddr, hwaddr, ETH_ALEN))) {
/* if found the matched address */
break;
}
psta = NULL;
plist = plist->next;
}
spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
return psta;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 143 | 95.97% | 1 | 25.00% |
| James A Shackleford | 4 | 2.68% | 1 | 25.00% |
| Geliang Tang | 1 | 0.67% | 1 | 25.00% |
| Luis de Bethencourt | 1 | 0.67% | 1 | 25.00% |
| Total | 149 | 100.00% | 4 | 100.00% |
void r8712_init_bcmc_stainfo(struct _adapter *padapter)
{
unsigned char bcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
struct sta_priv *pstapriv = &padapter->stapriv;
r8712_alloc_stainfo(pstapriv, bcast_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
struct sta_info *r8712_get_bcmc_stainfo(struct _adapter *padapter)
{
struct sta_priv *pstapriv = &padapter->stapriv;
u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
return r8712_get_stainfo(pstapriv, bc_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 49 | 98.00% | 1 | 50.00% |
| Prasanna Karthik | 1 | 2.00% | 1 | 50.00% |
| Total | 50 | 100.00% | 2 | 100.00% |
u8 r8712_access_ctrl(struct wlan_acl_pool *pacl_list, u8 *mac_addr)
{
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Larry Finger | 1429 | 96.23% | 2 | 12.50% |
| James A Shackleford | 35 | 2.36% | 5 | 31.25% |
| Geliang Tang | 9 | 0.61% | 2 | 12.50% |
| Vitaly Osipov | 3 | 0.20% | 1 | 6.25% |
| Luis de Bethencourt | 3 | 0.20% | 1 | 6.25% |
| Amitoj Kaur Chawla | 2 | 0.13% | 1 | 6.25% |
| Prasanna Karthik | 1 | 0.07% | 1 | 6.25% |
| Raphaël Beamonte | 1 | 0.07% | 1 | 6.25% |
| Bhumika Goyal | 1 | 0.07% | 1 | 6.25% |
| Sudip Mukherjee | 1 | 0.07% | 1 | 6.25% |
| Total | 1485 | 100.00% | 16 | 100.00% |
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