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a4ba98dd0c
Add a test for unaligned mode in which packet buffers can be placed anywhere within the umem. Some packets are made to straddle page boundaries in order to check for correctness. On the Tx side, buffers are now allocated according to the addresses found in the packet stream. Thus, the placement of buffers can be controlled with the boolean use_addr_for_fill in the packet stream. One new pkt_stream interface is introduced: pkt_stream_replace_half() that replaces every other packet in the default packet stream with the specified new packet. The constant DEFAULT_OFFSET is also introduced. It specifies at what offset from the start of a chunk a Tx packet is placed by the sending thread. This is just to be able to test that it is possible to send packets at an offset not equal to zero. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20210907071928.9750-18-magnus.karlsson@gmail.com |
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