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Diffstat (limited to 'include/uapi/linux/if_xdp.h')
-rw-r--r--include/uapi/linux/if_xdp.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/uapi/linux/if_xdp.h b/include/uapi/linux/if_xdp.h
index faaa5ca2a117..be328c59389d 100644
--- a/include/uapi/linux/if_xdp.h
+++ b/include/uapi/linux/if_xdp.h
@@ -16,6 +16,18 @@
#define XDP_SHARED_UMEM (1 << 0)
#define XDP_COPY (1 << 1) /* Force copy-mode */
#define XDP_ZEROCOPY (1 << 2) /* Force zero-copy mode */
+/* If this option is set, the driver might go sleep and in that case
+ * the XDP_RING_NEED_WAKEUP flag in the fill and/or Tx rings will be
+ * set. If it is set, the application need to explicitly wake up the
+ * driver with a poll() (Rx and Tx) or sendto() (Tx only). If you are
+ * running the driver and the application on the same core, you should
+ * use this option so that the kernel will yield to the user space
+ * application.
+ */
+#define XDP_USE_NEED_WAKEUP (1 << 3)
+
+/* Flags for xsk_umem_config flags */
+#define XDP_UMEM_UNALIGNED_CHUNK_FLAG (1 << 0)
struct sockaddr_xdp {
__u16 sxdp_family;
@@ -25,10 +37,14 @@ struct sockaddr_xdp {
__u32 sxdp_shared_umem_fd;
};
+/* XDP_RING flags */
+#define XDP_RING_NEED_WAKEUP (1 << 0)
+
struct xdp_ring_offset {
__u64 producer;
__u64 consumer;
__u64 desc;
+ __u64 flags;
};
struct xdp_mmap_offsets {
@@ -53,6 +69,7 @@ struct xdp_umem_reg {
__u64 len; /* Length of packet data area */
__u32 chunk_size;
__u32 headroom;
+ __u32 flags;
};
struct xdp_statistics {
@@ -74,6 +91,11 @@ struct xdp_options {
#define XDP_UMEM_PGOFF_FILL_RING 0x100000000ULL
#define XDP_UMEM_PGOFF_COMPLETION_RING 0x180000000ULL
+/* Masks for unaligned chunks mode */
+#define XSK_UNALIGNED_BUF_OFFSET_SHIFT 48
+#define XSK_UNALIGNED_BUF_ADDR_MASK \
+ ((1ULL << XSK_UNALIGNED_BUF_OFFSET_SHIFT) - 1)
+
/* Rx/Tx descriptor */
struct xdp_desc {
__u64 addr;