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cpumap: Formalize map value as a named struct

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As it has been already done for devmap, introduce 'struct bpf_cpumap_val'
to formalize the expected values that can be passed in for a CPUMAP.
Update cpumap code to use the struct.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/754f950674665dae6139c061d28c1d982aaf4170.1594734381.git.lorenzo@kernel.org
This commit is contained in:
Lorenzo Bianconi
2020-07-14 15:56:37 +02:00
committed by Andrii Nakryiko
parent 41054a32df
commit cd46c9d67e
1 changed files with 9 additions and 0 deletions
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9
include/uapi/linux/bpf.h
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@@ -3849,6 +3849,15 @@ struct bpf_devmap_val {
} bpf_prog; } bpf_prog;
}; };
/* CPUMAP map-value layout
*
* The struct data-layout of map-value is a configuration interface.
* New members can only be added to the end of this structure.
*/
struct bpf_cpumap_val {
__u32 qsize; /* queue size to remote target CPU */
};
enum sk_action { enum sk_action {
SK_DROP = 0, SK_DROP = 0,
SK_PASS, SK_PASS,