drivers/net/af_xdp/compat.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Intel Corporation.
   3  */
   4
   5 #ifdef RTE_NET_AF_XDP_LIBXDP
   6 #include <xdp/xsk.h>
   7 #else
   8 #include <bpf/xsk.h>
   9 #endif
  10 #include <linux/version.h>
  11 #include <poll.h>
  12
  13 #if KERNEL_VERSION(5, 10, 0) <= LINUX_VERSION_CODE && \
  14         defined(RTE_NET_AF_XDP_SHARED_UMEM)
  15 #define ETH_AF_XDP_SHARED_UMEM 1
  16 #endif
  17
  18 #ifdef ETH_AF_XDP_SHARED_UMEM
  19 static __rte_always_inline int
  20 create_shared_socket(struct xsk_socket **xsk_ptr,
  21                           const char *ifname,
  22                           __u32 queue_id, struct xsk_umem *umem,
  23                           struct xsk_ring_cons *rx,
  24                           struct xsk_ring_prod *tx,
  25                           struct xsk_ring_prod *fill,
  26                           struct xsk_ring_cons *comp,
  27                           const struct xsk_socket_config *config)
  28 {
  29         return xsk_socket__create_shared(xsk_ptr, ifname, queue_id, umem, rx,
  30                                                 tx, fill, comp, config);
  31 }
  32 #else
  33 static __rte_always_inline int
  34 create_shared_socket(struct xsk_socket **xsk_ptr __rte_unused,
  35                           const char *ifname __rte_unused,
  36                           __u32 queue_id __rte_unused,
  37                           struct xsk_umem *umem __rte_unused,
  38                           struct xsk_ring_cons *rx __rte_unused,
  39                           struct xsk_ring_prod *tx __rte_unused,
  40                           struct xsk_ring_prod *fill __rte_unused,
  41                           struct xsk_ring_cons *comp __rte_unused,
  42                           const struct xsk_socket_config *config __rte_unused)
  43 {
  44         return -1;
  45 }
  46 #endif
  47
  48 #ifdef XDP_USE_NEED_WAKEUP
  49 static int
  50 tx_syscall_needed(struct xsk_ring_prod *q)
  51 {
  52         return xsk_ring_prod__needs_wakeup(q);
  53 }
  54 #else
  55 static int
  56 tx_syscall_needed(struct xsk_ring_prod *q __rte_unused)
  57 {
  58         return 1;
  59 }
  60 #endif