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_setup(&precvpriv->recv_tasklet, rtl8188eu_recv_tasklet);
26
27 /* init recv_buf */
28 _rtw_init_queue(&precvpriv->free_recv_buf_queue);
29
30 precvpriv->precv_buf =
31 kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
32 if (!precvpriv->precv_buf) {
33 res = _FAIL;
34 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
35 ("alloc recv_buf fail!\n"));
36 goto exit;
37 }
38 precvbuf = precvpriv->precv_buf;
39
40 for (i = 0; i < NR_RECVBUFF; i++) {
41 res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
42 if (res == _FAIL)
43 break;
44 precvbuf->adapter = padapter;
45 precvbuf++;
46 }
47 skb_queue_head_init(&precvpriv->rx_skb_queue);
48 {
49 int i;
50 struct sk_buff *pskb = NULL;
51
52 skb_queue_head_init(&precvpriv->free_recv_skb_queue);
53
54 for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
55 pskb = __netdev_alloc_skb(padapter->pnetdev,
56 MAX_RECVBUF_SZ, GFP_KERNEL);
57 if (pskb) {
58 kmemleak_not_leak(pskb);
59 skb_queue_tail(&precvpriv->free_recv_skb_queue,
60 pskb);
61 }
62 pskb = NULL;
63 }
64 }
65 exit:
66 return res;
67 }
68
rtw_hal_free_recv_priv(struct adapter * padapter)69 void rtw_hal_free_recv_priv(struct adapter *padapter)
70 {
71 int i;
72 struct recv_buf *precvbuf;
73 struct recv_priv *precvpriv = &padapter->recvpriv;
74
75 precvbuf = precvpriv->precv_buf;
76
77 for (i = 0; i < NR_RECVBUFF; i++) {
78 usb_free_urb(precvbuf->purb);
79 precvbuf++;
80 }
81
82 kfree(precvpriv->precv_buf);
83
84 if (skb_queue_len(&precvpriv->rx_skb_queue))
85 DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
86 skb_queue_purge(&precvpriv->rx_skb_queue);
87
88 if (skb_queue_len(&precvpriv->free_recv_skb_queue))
89 DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n",
90 skb_queue_len(&precvpriv->free_recv_skb_queue));
91
92 skb_queue_purge(&precvpriv->free_recv_skb_queue);
93 }
94