Module driverkit::net::csum [−][src]
Expand description
Flags indicating checksum, segmentation and other offload work to be done, or already done, by hardware or lower layers. It is split into separate inbound and outbound flags.
Outbound flags that are set by upper protocol layers requesting lower layers, or ideally the hardware, to perform these offloading tasks. For outbound packets this field and its flags can be directly tested against ifnet if_hwassist. Note that the outbound and the inbound flags do not collide right now but they could be allowed to (as long as the flags are scrubbed appropriately when the direction of an mbuf changes). CSUM_BITS would also have to split into CSUM_BITS_TX and CSUM_BITS_RX.
CSUM_INNER_