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selftests/bpf: Add XDP_UMEM_TX_METADATA_LEN to XSK TX metadata test 

JIRA: https://issues.redhat.com/browse/RHEL-65205

commit 9b9969c40b0d63a8fca434d4ea01c60a39699aa3
Author: Stanislav Fomichev <sdf@fomichev.me>
Date:   Fri Jul 12 18:52:52 2024 -0700

    selftests/bpf: Add XDP_UMEM_TX_METADATA_LEN to XSK TX metadata test
    
    This flag is now required to use tx_metadata_len.
    
    Fixes: 40808a237d9c ("selftests/bpf: Add TX side to xdp_metadata")
    Reported-by: Julian Schindel <mail@arctic-alpaca.de>
    Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
    Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
    Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
    Link: https://lore.kernel.org/bpf/20240713015253.121248-3-sdf@fomichev.me

Signed-off-by: Felix Maurer <fmaurer@redhat.com>
This commit is contained in:
Felix Maurer 2024-10-29 17:14:15 +01:00
parent 4df4c517ab
commit a7f85431d2
2 changed files with 6 additions and 1 deletions
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4
tools/include/uapi/linux/if_xdp.h
View File

@ -41,6 +41,10 @@
*/
#define XDP_UMEM_TX_SW_CSUM (1 << 1)
/* Request to reserve tx_metadata_len bytes of per-chunk metadata.
*/
#define XDP_UMEM_TX_METADATA_LEN (1 << 2)
struct sockaddr_xdp {
__u16 sxdp_family;
__u16 sxdp_flags;

3
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
View File

@ -68,7 +68,8 @@ static int open_xsk(int ifindex, struct xsk *xsk)
.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
.comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
.frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
.flags = XDP_UMEM_UNALIGNED_CHUNK_FLAG | XDP_UMEM_TX_SW_CSUM,
.flags = XDP_UMEM_UNALIGNED_CHUNK_FLAG | XDP_UMEM_TX_SW_CSUM |
XDP_UMEM_TX_METADATA_LEN,
.tx_metadata_len = sizeof(struct xsk_tx_metadata),
};
__u32 idx;