1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Shared Memory Communications over RDMA (SMC-R) and RoCE
4 *
5 * Manage send buffer
6 *
7 * Copyright IBM Corp. 2016
8 *
9 * Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
10 */
11
12 #ifndef SMC_TX_H
13 #define SMC_TX_H
14
15 #include <linux/socket.h>
16 #include <linux/types.h>
17
18 #include "smc.h"
19 #include "smc_cdc.h"
20
21 static inline int smc_tx_prepared_sends(struct smc_connection *conn)
22 {
23 union smc_host_cursor sent, prep;
24
25 smc_curs_copy(&sent, &conn->tx_curs_sent, conn);
26 smc_curs_copy(&prep, &conn->tx_curs_prep, conn);
27 return smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep);
28 }
29
30 void smc_tx_pending(struct smc_connection *conn);
31 void smc_tx_work(struct work_struct *work);
32 void smc_tx_init(struct smc_sock *smc);
33 int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len);
34 int smc_tx_sndbuf_nonempty(struct smc_connection *conn);
35 void smc_tx_sndbuf_nonfull(struct smc_sock *smc);
36 void smc_tx_consumer_update(struct smc_connection *conn, bool force);
37 int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len,
38 u32 offset, int signal);
39
40 #endif /* SMC_TX_H */
41
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