root/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h

INCLUDED FROM

DEFINITIONS

1. mlx5e_xsk_update_rx_wakeup

   1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2 /* Copyright (c) 2019 Mellanox Technologies. */
   3 
   4 #ifndef __MLX5_EN_XSK_RX_H__
   5 #define __MLX5_EN_XSK_RX_H__
   6 
   7 #include "en.h"
   8 #include <net/xdp_sock.h>
   9 
  10 /* RX data path */
  11 
  12 bool mlx5e_xsk_pages_enough_umem(struct mlx5e_rq *rq, int count);
  13 int mlx5e_xsk_page_alloc_umem(struct mlx5e_rq *rq,
  14                               struct mlx5e_dma_info *dma_info);
  15 void mlx5e_xsk_page_release(struct mlx5e_rq *rq,
  16                             struct mlx5e_dma_info *dma_info);
  17 void mlx5e_xsk_zca_free(struct zero_copy_allocator *zca, unsigned long handle);
  18 struct sk_buff *mlx5e_xsk_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq,
  19                                                     struct mlx5e_mpw_info *wi,
  20                                                     u16 cqe_bcnt,
  21                                                     u32 head_offset,
  22                                                     u32 page_idx);
  23 struct sk_buff *mlx5e_xsk_skb_from_cqe_linear(struct mlx5e_rq *rq,
  24                                               struct mlx5_cqe64 *cqe,
  25                                               struct mlx5e_wqe_frag_info *wi,
  26                                               u32 cqe_bcnt);
  27 
  28 static inline bool mlx5e_xsk_update_rx_wakeup(struct mlx5e_rq *rq, bool alloc_err)
  29 {
  30         if (!xsk_umem_uses_need_wakeup(rq->umem))
  31                 return alloc_err;
  32 
  33         if (unlikely(alloc_err))
  34                 xsk_set_rx_need_wakeup(rq->umem);
  35         else
  36                 xsk_clear_rx_need_wakeup(rq->umem);
  37 
  38         return false;
  39 }
  40 
  41 #endif /* __MLX5_EN_XSK_RX_H__ */