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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Shared Memory Communications over RDMA (SMC-R) and RoCE
*
* Manage RMBE
*
* Copyright IBM Corp. 2016
*
* Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
*/
#ifndef SMC_RX_H
#define SMC_RX_H
#include <linux/socket.h>
#include <linux/types.h>
#include "smc.h"
void smc_rx_init(struct smc_sock *smc);
int smc_rx_recvmsg(struct smc_sock *smc, struct msghdr *msg,
struct pipe_inode_info *pipe, size_t len, int flags);
int smc_rx_wait(struct smc_sock *smc, long *timeo, size_t peeked,
int (*fcrit)(struct smc_connection *conn, size_t baseline));
static inline int smc_rx_data_available(struct smc_connection *conn, size_t peeked)
{
return atomic_read(&conn->bytes_to_rcv) - peeked;
}
#endif /* SMC_RX_H */
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