diff options
Diffstat (limited to 'net/xdp/xdp_umem.c')
| -rw-r--r-- | net/xdp/xdp_umem.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 06cead2b8e34..caa340134b0e 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -148,6 +148,11 @@ static int xdp_umem_account_pages(struct xdp_umem *umem) return 0; } +#define XDP_UMEM_FLAGS_VALID ( \ + XDP_UMEM_UNALIGNED_CHUNK_FLAG | \ + XDP_UMEM_TX_SW_CSUM | \ + 0) + static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr) { bool unaligned_chunks = mr->flags & XDP_UMEM_UNALIGNED_CHUNK_FLAG; @@ -167,7 +172,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr) return -EINVAL; } - if (mr->flags & ~XDP_UMEM_UNALIGNED_CHUNK_FLAG) + if (mr->flags & ~XDP_UMEM_FLAGS_VALID) return -EINVAL; if (!unaligned_chunks && !is_power_of_2(chunk_size)) @@ -199,6 +204,9 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr) if (headroom >= chunk_size - XDP_PACKET_HEADROOM) return -EINVAL; + if (mr->tx_metadata_len >= 256 || mr->tx_metadata_len % 8) + return -EINVAL; + umem->size = size; umem->headroom = headroom; umem->chunk_size = chunk_size; @@ -207,6 +215,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr) umem->pgs = NULL; umem->user = NULL; umem->flags = mr->flags; + umem->tx_metadata_len = mr->tx_metadata_len; INIT_LIST_HEAD(&umem->xsk_dma_list); refcount_set(&umem->users, 1); |