drivers/net/af_xdp/compat.h

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