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 */ 32