Certain aspects of a method and system for transparent transmission
control protocol (TCP) offload with best effort direct placement of
incoming traffic are disclosed. Aspects of a method may include
collecting TCP segments in a network interface card (NIC) processor
without transferring state information to a host processor every time a
TCP segment is received. When an event occurs that terminates the
collection of TCP segments, the NIC processor may generate a new
aggregated TCP segment based on the collected TCP segments. If a
placement sequence number corresponding to the generated new TCP segment
for the particular network flow is received before the TCP segment is
received, the generated new TCP segment may be transferred directly from
the memory to the user buffer instead of transferring the data to a
kernel buffer, which would require further copy by the host stack from
kernel buffer to user buffer.