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selftests/xsk: Support tx_metadata_len 

Add new config field and propagate to UMEM registration setsockopt.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20231127190319.1190813-10-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Stanislav Fomichev 2023-11-27 11:03:15 -08:00 committed by Alexei Starovoitov
parent 11614723af
commit df3ed0003e
2 changed files with 4 additions and 0 deletions
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3
tools/testing/selftests/bpf/xsk.c
View File

@ -115,6 +115,7 @@ static void xsk_set_umem_config(struct xsk_umem_config *cfg,
cfg->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
cfg->frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM;
cfg->flags = XSK_UMEM__DEFAULT_FLAGS;
cfg->tx_metadata_len = 0;
return;
}
@ -123,6 +124,7 @@ static void xsk_set_umem_config(struct xsk_umem_config *cfg,
cfg->frame_size = usr_cfg->frame_size;
cfg->frame_headroom = usr_cfg->frame_headroom;
cfg->flags = usr_cfg->flags;
cfg->tx_metadata_len = usr_cfg->tx_metadata_len;
}
static int xsk_set_xdp_socket_config(struct xsk_socket_config *cfg,
@ -252,6 +254,7 @@ int xsk_umem__create(struct xsk_umem **umem_ptr, void *umem_area,
mr.chunk_size = umem->config.frame_size;
mr.headroom = umem->config.frame_headroom;
mr.flags = umem->config.flags;
mr.tx_metadata_len = umem->config.tx_metadata_len;
err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_REG, &mr, sizeof(mr));
if (err) {

1
tools/testing/selftests/bpf/xsk.h
View File

@ -200,6 +200,7 @@ struct xsk_umem_config {
__u32 frame_size;
__u32 frame_headroom;
__u32 flags;
__u32 tx_metadata_len;
};
int xsk_attach_xdp_program(struct bpf_program *prog, int ifindex, u32 xdp_flags);