6 MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
7 MODULE_AUTHOR("Realtek Semiconductor Corp.");
8 MODULE_VERSION("DRIVERVERSION");
10 struct sk_buff_head rtk_skb_mem_q;
11 struct u8 *rtk_buf_mem[NR_RECVBUFF];
13 struct u8 *rtw_get_buf_premem(int index)
15 printk("%s, rtk_buf_mem index : %d\n", __func__, index);
16 return rtk_buf_mem[index];
19 u16 rtw_rtkm_get_buff_size(void)
21 return MAX_RTKM_RECVBUF_SZ;
23 EXPORT_SYMBOL(rtw_rtkm_get_buff_size);
25 u8 rtw_rtkm_get_nr_recv_skb(void)
27 return MAX_RTKM_NR_PREALLOC_RECV_SKB;
29 EXPORT_SYMBOL(rtw_rtkm_get_nr_recv_skb);
31 struct sk_buff *rtw_alloc_skb_premem(u16 in_size)
33 struct sk_buff *skb = NULL;
35 if (in_size > MAX_RTKM_RECVBUF_SZ) {
36 pr_info("warning %s: driver buffer size(%d) > rtkm buffer size(%d)\n", __func__, in_size, MAX_RTKM_RECVBUF_SZ);
41 skb = skb_dequeue(&rtk_skb_mem_q);
43 printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
47 EXPORT_SYMBOL(rtw_alloc_skb_premem);
49 int rtw_free_skb_premem(struct sk_buff *pskb)
54 if (skb_queue_len(&rtk_skb_mem_q) >= MAX_RTKM_NR_PREALLOC_RECV_SKB)
57 skb_queue_tail(&rtk_skb_mem_q, pskb);
59 printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
63 EXPORT_SYMBOL(rtw_free_skb_premem);
65 static int __init rtw_mem_init(void)
69 SIZE_PTR alignment = 0;
70 struct sk_buff *pskb = NULL;
72 printk("%s\n", __func__);
73 pr_info("MAX_RTKM_NR_PREALLOC_RECV_SKB: %d\n", MAX_RTKM_NR_PREALLOC_RECV_SKB);
74 pr_info("MAX_RTKM_RECVBUF_SZ: %d\n", MAX_RTKM_RECVBUF_SZ);
76 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
77 for (i = 0; i < NR_RECVBUFF; i++)
78 rtk_buf_mem[i] = usb_buffer_alloc(dev, size, (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), dma);
79 #endif /* CONFIG_USE_USB_BUFFER_ALLOC_RX */
81 skb_queue_head_init(&rtk_skb_mem_q);
83 for (i = 0; i < MAX_RTKM_NR_PREALLOC_RECV_SKB; i++) {
84 pskb = __dev_alloc_skb(MAX_RTKM_RECVBUF_SZ + RECVBUFF_ALIGN_SZ, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
86 tmpaddr = (SIZE_PTR)pskb->data;
87 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ - 1);
88 skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
90 skb_queue_tail(&rtk_skb_mem_q, pskb);
92 printk("%s, alloc skb memory fail!\n", __func__);
97 printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
103 static void __exit rtw_mem_exit(void)
105 if (skb_queue_len(&rtk_skb_mem_q))
106 printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
108 skb_queue_purge(&rtk_skb_mem_q);
110 printk("%s\n", __func__);
113 module_init(rtw_mem_init);
114 module_exit(rtw_mem_exit);