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