1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Shared Memory Communications over RDMA (SMC-R) and RoCE
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Manage send buffer
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright IBM Corp. 2016
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #ifndef SMC_TX_H
13*4882a593Smuzhiyun #define SMC_TX_H
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/socket.h>
16*4882a593Smuzhiyun #include <linux/types.h>
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #include "smc.h"
19*4882a593Smuzhiyun #include "smc_cdc.h"
20*4882a593Smuzhiyun
smc_tx_prepared_sends(struct smc_connection * conn)21*4882a593Smuzhiyun static inline int smc_tx_prepared_sends(struct smc_connection *conn)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun union smc_host_cursor sent, prep;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun smc_curs_copy(&sent, &conn->tx_curs_sent, conn);
26*4882a593Smuzhiyun smc_curs_copy(&prep, &conn->tx_curs_prep, conn);
27*4882a593Smuzhiyun return smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep);
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun void smc_tx_work(struct work_struct *work);
31*4882a593Smuzhiyun void smc_tx_init(struct smc_sock *smc);
32*4882a593Smuzhiyun int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len);
33*4882a593Smuzhiyun int smc_tx_sndbuf_nonempty(struct smc_connection *conn);
34*4882a593Smuzhiyun void smc_tx_sndbuf_nonfull(struct smc_sock *smc);
35*4882a593Smuzhiyun void smc_tx_consumer_update(struct smc_connection *conn, bool force);
36*4882a593Smuzhiyun int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len,
37*4882a593Smuzhiyun u32 offset, int signal);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #endif /* SMC_TX_H */
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