1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTL8188EU_RECV_C_
8 #include <linux/kmemleak.h>
9 #include <osdep_service.h>
10 #include <drv_types.h>
11 #include <recv_osdep.h>
12 #include <mlme_osdep.h>
13
14 #include <usb_ops_linux.h>
15 #include <wifi.h>
16
17 #include <rtl8188e_hal.h>
18
rtw_hal_init_recv_priv(struct adapter * padapter)19 int rtw_hal_init_recv_priv(struct adapter *padapter)
20 {
21 struct recv_priv *precvpriv = &padapter->recvpriv;
22 int i, res = _SUCCESS;
23 struct recv_buf *precvbuf;
24
25 tasklet_init(&precvpriv->recv_tasklet,
26 (void(*)(unsigned long))rtl8188eu_recv_tasklet,
27 (unsigned long)padapter);
28
29 /* init recv_buf */
30 _rtw_init_queue(&precvpriv->free_recv_buf_queue);
31
32 precvpriv->precv_buf =
33 kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
34 if (!precvpriv->precv_buf) {
35 res = _FAIL;
36 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
37 ("alloc recv_buf fail!\n"));
38 goto exit;
39 }
40 precvbuf = precvpriv->precv_buf;
41
42 for (i = 0; i < NR_RECVBUFF; i++) {
43 res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
44 if (res == _FAIL)
45 break;
46 precvbuf->adapter = padapter;
47 precvbuf++;
48 }
49 skb_queue_head_init(&precvpriv->rx_skb_queue);
50 {
51 int i;
52 struct sk_buff *pskb = NULL;
53
54 skb_queue_head_init(&precvpriv->free_recv_skb_queue);
55
56 for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
57 pskb = __netdev_alloc_skb(padapter->pnetdev,
58 MAX_RECVBUF_SZ, GFP_KERNEL);
59 if (pskb) {
60 kmemleak_not_leak(pskb);
61 skb_queue_tail(&precvpriv->free_recv_skb_queue,
62 pskb);
63 }
64 pskb = NULL;
65 }
66 }
67 exit:
68 return res;
69 }
70
rtw_hal_free_recv_priv(struct adapter * padapter)71 void rtw_hal_free_recv_priv(struct adapter *padapter)
72 {
73 int i;
74 struct recv_buf *precvbuf;
75 struct recv_priv *precvpriv = &padapter->recvpriv;
76
77 precvbuf = precvpriv->precv_buf;
78
79 for (i = 0; i < NR_RECVBUFF; i++) {
80 usb_free_urb(precvbuf->purb);
81 precvbuf++;
82 }
83
84 kfree(precvpriv->precv_buf);
85
86 if (skb_queue_len(&precvpriv->rx_skb_queue))
87 DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
88 skb_queue_purge(&precvpriv->rx_skb_queue);
89
90 if (skb_queue_len(&precvpriv->free_recv_skb_queue))
91 DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n",
92 skb_queue_len(&precvpriv->free_recv_skb_queue));
93
94 skb_queue_purge(&precvpriv->free_recv_skb_queue);
95 }
96