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
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