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54 lines
1.9 KiB
54 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/****************************************************************************** |
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******************************************************************************* |
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** |
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** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
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** Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved. |
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** |
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** |
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******************************************************************************* |
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******************************************************************************/ |
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#ifndef __LOWCOMMS_DOT_H__ |
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#define __LOWCOMMS_DOT_H__ |
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#include "dlm_internal.h" |
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#define DLM_MIDCOMMS_OPT_LEN sizeof(struct dlm_opts) |
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#define DLM_MAX_APP_BUFSIZE (DLM_MAX_SOCKET_BUFSIZE - \ |
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DLM_MIDCOMMS_OPT_LEN) |
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#define CONN_HASH_SIZE 32 |
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/* This is deliberately very simple because most clusters have simple |
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* sequential nodeids, so we should be able to go straight to a connection |
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* struct in the array |
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*/ |
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static inline int nodeid_hash(int nodeid) |
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{ |
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return nodeid & (CONN_HASH_SIZE-1); |
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} |
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/* switch to check if dlm is running */ |
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extern int dlm_allow_conn; |
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int dlm_lowcomms_start(void); |
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void dlm_lowcomms_shutdown(void); |
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void dlm_lowcomms_stop(void); |
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void dlm_lowcomms_exit(void); |
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int dlm_lowcomms_close(int nodeid); |
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struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, gfp_t allocation, |
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char **ppc, void (*cb)(void *data), |
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void *data); |
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void dlm_lowcomms_commit_msg(struct dlm_msg *msg); |
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void dlm_lowcomms_put_msg(struct dlm_msg *msg); |
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int dlm_lowcomms_resend_msg(struct dlm_msg *msg); |
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int dlm_lowcomms_connect_node(int nodeid); |
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int dlm_lowcomms_nodes_set_mark(int nodeid, unsigned int mark); |
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int dlm_lowcomms_addr(int nodeid, struct sockaddr_storage *addr, int len); |
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void dlm_midcomms_receive_done(int nodeid); |
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struct kmem_cache *dlm_lowcomms_writequeue_cache_create(void); |
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struct kmem_cache *dlm_lowcomms_msg_cache_create(void); |
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#endif /* __LOWCOMMS_DOT_H__ */ |
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