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libbpf: add flags to umem config

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This patch adds a 'flags' field to the umem_config and umem_reg structs.
This will allow for more options to be added for configuring umems.

The first use for the flags field is to add a flag for unaligned chunks
mode. These flags can either be user-provided or filled with a default.

Since we change the size of the xsk_umem_config struct, we need to version
the ABI. This patch includes the ABI versioning for xsk_umem__create. The
Makefile was also updated to handle multiple function versions in
check-abi.

Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Kevin Laatz
2019-08-27 02:25:27 +00:00
committed by Andrii Nakryiko
parent 5a256d12bf
commit ae673dc91f
4 changed files with 67 additions and 3 deletions
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src/libbpf.map
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@@ -183,6 +183,7 @@ LIBBPF_0.0.4 {
perf_buffer__new;
perf_buffer__new_raw;
perf_buffer__poll;
xsk_umem__create;
} LIBBPF_0.0.3;
LIBBPF_0.0.5 {