net/smc/smc_rx.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Shared Memory Communications over RDMA (SMC-R) and RoCE
   4  *
   5  * Manage RMBE
   6  *
   7  * Copyright IBM Corp. 2016
   8  *
   9  * Author(s):  Ursula Braun <ubraun@linux.vnet.ibm.com>
  10  */
  11
  12 #ifndef SMC_RX_H
  13 #define SMC_RX_H
  14
  15 #include <linux/socket.h>
  16 #include <linux/types.h>
  17
  18 #include "smc.h"
  19
  20 void smc_rx_init(struct smc_sock *smc);
  21
  22 int smc_rx_recvmsg(struct smc_sock *smc, struct msghdr *msg,
  23                    struct pipe_inode_info *pipe, size_t len, int flags);
  24 int smc_rx_wait(struct smc_sock *smc, long *timeo,
  25                 int (*fcrit)(struct smc_connection *conn));
  26 static inline int smc_rx_data_available(struct smc_connection *conn)
  27 {
  28         return atomic_read(&conn->bytes_to_rcv);
  29 }
  30
  31 #endif /* SMC_RX_H */