net: checksum: Introduce fine control over checksum type
At present net_checksum_calculate() blindly calculates all types of
checksums (IP, TCP, UDP). Some NICs may have a per type setting in
their BDs to control what checksum should be offloaded. To support
such hardware behavior, introduce a 'csum_flag' parameter to the
net_checksum_calculate() API to allow fine control over what type
checksum is calculated.
Existing users of this API are updated accordingly.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
diff --git a/hw/net/allwinner-sun8i-emac.c b/hw/net/allwinner-sun8i-emac.c
index 38d3285..0427689 100644
--- a/hw/net/allwinner-sun8i-emac.c
+++ b/hw/net/allwinner-sun8i-emac.c
@@ -514,7 +514,7 @@
/* After the last descriptor, send the packet */
if (desc.status2 & TX_DESC_STATUS2_LAST_DESC) {
if (desc.status2 & TX_DESC_STATUS2_CHECKSUM_MASK) {
- net_checksum_calculate(packet_buf, packet_bytes);
+ net_checksum_calculate(packet_buf, packet_bytes, CSUM_ALL);
}
qemu_send_packet(nc, packet_buf, packet_bytes);
