[components][lwip]LWIP 1.4.1 支持硬件校验和

Author: zylx

components/net/lwip-1.4.1/src/lwipopts.h

@@ -374,6 +374,18 @@
 #define ARP_TABLE_SIZE              10
 #define ARP_QUEUEING                1
 
+/* ---------- Checksum options ---------- */
+#ifdef RT_LWIP_USING_HW_CHECKSUM
+#define CHECKSUM_GEN_IP                 0
+#define CHECKSUM_GEN_UDP                0
+#define CHECKSUM_GEN_TCP                0
+#define CHECKSUM_GEN_ICMP               0
+#define CHECKSUM_CHECK_IP               0
+#define CHECKSUM_CHECK_UDP              0
+#define CHECKSUM_CHECK_TCP              0
+#define CHECKSUM_CHECK_ICMP             0
+#endif
+
 /* ---------- IP options ---------- */
 /* Define IP_FORWARD to 1 if you wish to have the ability to forward
    IP packets across network interfaces. If you are going to run lwIP