1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _SYS_SQUEUE_H 26 #define _SYS_SQUEUE_H 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #include <sys/types.h> 33 #include <sys/processor.h> 34 #include <sys/stream.h> 35 36 struct squeue_s; 37 typedef struct squeue_s squeue_t; 38 39 #define SET_SQUEUE(mp, proc, arg) { \ 40 ASSERT((mp)->b_prev == NULL); \ 41 ASSERT((mp)->b_next == NULL); \ 42 (mp)->b_queue = (queue_t *)(proc); \ 43 (mp)->b_prev = (mblk_t *)(arg); \ 44 } 45 46 #define SQ_FILL 0x0001 47 #define SQ_NODRAIN 0x0002 48 #define SQ_PROCESS 0x0004 49 50 #define SQUEUE_ENTER(sqp, head, tail, cnt, ira, flag, tag) { \ 51 sqp->sq_enter(sqp, head, tail, cnt, ira, flag, tag); \ 52 } 53 54 #define SQUEUE_ENTER_ONE(sqp, mp, proc, arg, ira, flag, tag) { \ 55 ASSERT(mp->b_next == NULL); \ 56 ASSERT(mp->b_prev == NULL); \ 57 SET_SQUEUE(mp, proc, arg); \ 58 SQUEUE_ENTER(sqp, mp, mp, 1, ira, flag, tag); \ 59 } 60 61 /* 62 * May be called only by a thread executing in the squeue. The thread must 63 * not continue to execute any code needing squeue protection after calling 64 * this macro. Please see the comments in squeue.c for more details. 65 */ 66 #define SQUEUE_SWITCH(connp, new_sqp) \ 67 (connp)->conn_sqp = new_sqp; 68 69 /* 70 * Facility-special private data in squeues. 71 */ 72 typedef enum { 73 SQPRIVATE_TCP, 74 SQPRIVATE_MAX 75 } sqprivate_t; 76 77 struct ip_recv_attr_s; 78 extern void squeue_init(void); 79 extern squeue_t *squeue_create(clock_t, pri_t); 80 extern void squeue_bind(squeue_t *, processorid_t); 81 extern void squeue_unbind(squeue_t *); 82 extern void squeue_enter(squeue_t *, mblk_t *, mblk_t *, 83 uint32_t, struct ip_recv_attr_s *, int, uint8_t); 84 extern uintptr_t *squeue_getprivate(squeue_t *, sqprivate_t); 85 86 struct conn_s; 87 extern int squeue_synch_enter(struct conn_s *, mblk_t *); 88 extern void squeue_synch_exit(struct conn_s *); 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* _SYS_SQUEUE_H */ 95