Updated to v4.3.8_12406.20140929

core/rtw_mem.c

@@ -0,0 +1,103 @@
+
+#include <drv_types.h>
+#include <rtw_mem.h>
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
+MODULE_AUTHOR("Realtek Semiconductor Corp.");
+MODULE_VERSION("DRIVERVERSION");
+
+struct sk_buff_head rtk_skb_mem_q;
+struct u8* rtk_buf_mem[NR_RECVBUFF];
+
+struct u8	* rtw_get_buf_premem(int index)
+{
+	printk("%s, rtk_buf_mem index : %d\n", __func__, index);
+	return rtk_buf_mem[index];
+}
+
+struct sk_buff *rtw_alloc_skb_premem(void)
+{
+	struct sk_buff *skb = NULL;
+
+	skb = skb_dequeue(&rtk_skb_mem_q);
+
+	printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
+
+	return skb;	
+}
+EXPORT_SYMBOL(rtw_alloc_skb_premem);
+
+int rtw_free_skb_premem(struct sk_buff *pskb)
+{
+	if(!pskb)
+		return -1;
+
+	if(skb_queue_len(&rtk_skb_mem_q) >= NR_PREALLOC_RECV_SKB)	
+		return -1;
+	
+	skb_queue_tail(&rtk_skb_mem_q, pskb);
+	
+	printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
+
+	return 0;
+}
+EXPORT_SYMBOL(rtw_free_skb_premem);
+
+static int __init rtw_mem_init(void)
+{
+	int i;
+	SIZE_PTR tmpaddr=0;
+	SIZE_PTR alignment=0;
+	struct sk_buff *pskb=NULL;
+
+	printk("%s\n", __func__);
+
+#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
+	for(i=0; i<NR_RECVBUFF; i++)
+
+	{
+
+		rtk_buf_mem[i] = usb_buffer_alloc(dev, size, (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), dma);
+	}
+#endif //CONFIG_USE_USB_BUFFER_ALLOC_RX
+
+	skb_queue_head_init(&rtk_skb_mem_q);
+
+	for(i=0; i<NR_PREALLOC_RECV_SKB; i++)
+	{
+		pskb = __dev_alloc_skb(MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
+		if(pskb)
+		{		
+			tmpaddr = (SIZE_PTR)pskb->data;
+			alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
+			skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
+
+			skb_queue_tail(&rtk_skb_mem_q, pskb);
+		}
+		else
+		{
+			printk("%s, alloc skb memory fail!\n", __func__);
+		}
+
+		pskb=NULL;
+	}
+
+	printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
+
+	return 0;
+	
+}
+
+static void __exit rtw_mem_exit(void)
+{
+	if (skb_queue_len(&rtk_skb_mem_q)) {
+		printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
+	}
+
+	skb_queue_purge(&rtk_skb_mem_q);
+
+	printk("%s\n", __func__);
+}
+
+module_init(rtw_mem_init);