/* SPDX-License-Identifier: GPL-2.0 */

  /*
   * Shared Memory Communications over RDMA (SMC-R) and RoCE
   *
   * Manage send buffer
   *
   * Copyright IBM Corp. 2016
   *
   * Author(s):  Ursula Braun <ubraun@linux.vnet.ibm.com>
   */
  
  #ifndef SMC_TX_H
  #define SMC_TX_H
  
  #include <linux/socket.h>
  #include <linux/types.h>
  
  #include "smc.h"
  #include "smc_cdc.h"
  
  static inline int smc_tx_prepared_sends(struct smc_connection *conn)
  {
  	union smc_host_cursor sent, prep;

  	smc_curs_copy(&sent, &conn->tx_curs_sent, conn);
  	smc_curs_copy(&prep, &conn->tx_curs_prep, conn);

  	return smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep);

  }

  void smc_tx_pending(struct smc_connection *conn);

  void smc_tx_work(struct work_struct *work);

  void smc_tx_init(struct smc_sock *smc);
  int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len);
  int smc_tx_sndbuf_nonempty(struct smc_connection *conn);
  void smc_tx_sndbuf_nonfull(struct smc_sock *smc);

  void smc_tx_consumer_update(struct smc_connection *conn, bool force);

  int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len,
  		      u32 offset, int signal);

  
  #endif /* SMC_TX_H */