On Fri, Dec 20, 2024 at 05:18:06PM +0800, Wei Fang wrote:
The Tx metadata test has been broken since the commit d5e726d9143c
("xsk:
Require XDP_UMEM_TX_METADATA_LEN to actuate tx_metadata_len").
Nit:
Fixes tag already include this information.
The Tx metadata test has been broken becasue XDP_UMEM_TX_METADATA_LEN flag is not set ....
Because this change requires XDP_UMEM_TX_METADATA_LEN flag to be set, otherwise xsk_buff_pool::tx_metadata_len will be initialized to 0, which means that the driver cannot get Tx metadata and cannot execute AF_XDP Tx metadata hooks.
Fixes: d5e726d9143c ("xsk: Require XDP_UMEM_TX_METADATA_LEN to
actuate
tx_metadata_len") Signed-off-by: Wei Fang wei.fang@nxp.com
tools/testing/selftests/bpf/xdp_hw_metadata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index 6f9956eed797..ad6c08dfd6c8 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -79,7 +79,7 @@ static int open_xsk(int ifindex, struct xsk *xsk, __u32
queue_id)
.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS, .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS, .frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
.flags = XSK_UMEM__DEFAULT_FLAGS,
.flags = XDP_UMEM_TX_METADATA_LEN,look like "XSK_UMEM__DEFAULT_FLAGS | XDP_UMEM_TX_METADATA_LEN"
You clean other flags, does it what you what?
XSK_UMEM__DEFAULT_FLAGS is 0, so no need anymore. The same patch had been applied to bpf-next tree [1], so please ignore this one.
[1] https://lore.kernel.org/bpf/20241205044258.3155799-1-yoong.siang.song@intel....
.tx_metadata_len = sizeof(struct xsk_tx_metadata),}; __u32 idx = 0; -- 2.34.1