1*9491SAnders.Persson@Sun.COM /* 2*9491SAnders.Persson@Sun.COM * CDDL HEADER START 3*9491SAnders.Persson@Sun.COM * 4*9491SAnders.Persson@Sun.COM * The contents of this file are subject to the terms of the 5*9491SAnders.Persson@Sun.COM * Common Development and Distribution License (the "License"). 6*9491SAnders.Persson@Sun.COM * You may not use this file except in compliance with the License. 7*9491SAnders.Persson@Sun.COM * 8*9491SAnders.Persson@Sun.COM * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*9491SAnders.Persson@Sun.COM * or http://www.opensolaris.org/os/licensing. 10*9491SAnders.Persson@Sun.COM * See the License for the specific language governing permissions 11*9491SAnders.Persson@Sun.COM * and limitations under the License. 12*9491SAnders.Persson@Sun.COM * 13*9491SAnders.Persson@Sun.COM * When distributing Covered Code, include this CDDL HEADER in each 14*9491SAnders.Persson@Sun.COM * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*9491SAnders.Persson@Sun.COM * If applicable, add the following below this CDDL HEADER, with the 16*9491SAnders.Persson@Sun.COM * fields enclosed by brackets "[]" replaced with your own identifying 17*9491SAnders.Persson@Sun.COM * information: Portions Copyright [yyyy] [name of copyright owner] 18*9491SAnders.Persson@Sun.COM * 19*9491SAnders.Persson@Sun.COM * CDDL HEADER END 20*9491SAnders.Persson@Sun.COM */ 21*9491SAnders.Persson@Sun.COM 22*9491SAnders.Persson@Sun.COM /* 23*9491SAnders.Persson@Sun.COM * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24*9491SAnders.Persson@Sun.COM * Use is subject to license terms. 25*9491SAnders.Persson@Sun.COM */ 26*9491SAnders.Persson@Sun.COM 27*9491SAnders.Persson@Sun.COM /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28*9491SAnders.Persson@Sun.COM /* All Rights Reserved */ 29*9491SAnders.Persson@Sun.COM 30*9491SAnders.Persson@Sun.COM /* 31*9491SAnders.Persson@Sun.COM * University Copyright- Copyright (c) 1982, 1986, 1988 32*9491SAnders.Persson@Sun.COM * The Regents of the University of California 33*9491SAnders.Persson@Sun.COM * All Rights Reserved 34*9491SAnders.Persson@Sun.COM * 35*9491SAnders.Persson@Sun.COM * University Acknowledgment- Portions of this document are derived from 36*9491SAnders.Persson@Sun.COM * software developed by the University of California, Berkeley, and its 37*9491SAnders.Persson@Sun.COM * contributors. 38*9491SAnders.Persson@Sun.COM */ 39*9491SAnders.Persson@Sun.COM 40*9491SAnders.Persson@Sun.COM #ifndef _SOCKFS_SODIRECT_H 41*9491SAnders.Persson@Sun.COM #define _SOCKFS_SODIRECT_H 42*9491SAnders.Persson@Sun.COM 43*9491SAnders.Persson@Sun.COM /* 44*9491SAnders.Persson@Sun.COM * Sodirect; used to support asynchronous DMA hardware 45*9491SAnders.Persson@Sun.COM * (e.g. Intel's I/OAT). 46*9491SAnders.Persson@Sun.COM */ 47*9491SAnders.Persson@Sun.COM 48*9491SAnders.Persson@Sun.COM #ifdef __cplusplus 49*9491SAnders.Persson@Sun.COM extern "C" { 50*9491SAnders.Persson@Sun.COM #endif 51*9491SAnders.Persson@Sun.COM 52*9491SAnders.Persson@Sun.COM typedef struct sodirect_s { 53*9491SAnders.Persson@Sun.COM boolean_t sod_enabled; /* sodirect_t enabled */ 54*9491SAnders.Persson@Sun.COM mblk_t *sod_uioafh; /* To be freed list head, or NULL */ 55*9491SAnders.Persson@Sun.COM mblk_t *sod_uioaft; /* To be freed list tail */ 56*9491SAnders.Persson@Sun.COM uioa_t sod_uioa; /* Pending uio_t for uioa_t use */ 57*9491SAnders.Persson@Sun.COM } sodirect_t; 58*9491SAnders.Persson@Sun.COM 59*9491SAnders.Persson@Sun.COM /* 60*9491SAnders.Persson@Sun.COM * Usefull macros: 61*9491SAnders.Persson@Sun.COM */ 62*9491SAnders.Persson@Sun.COM #define SOD_DISABLE(sodp) { \ 63*9491SAnders.Persson@Sun.COM (sodp)->sod_enabled = B_FALSE; \ 64*9491SAnders.Persson@Sun.COM } 65*9491SAnders.Persson@Sun.COM 66*9491SAnders.Persson@Sun.COM #define SOD_SOTOSODP(so) ((sonode_t *)so)->so_direct 67*9491SAnders.Persson@Sun.COM 68*9491SAnders.Persson@Sun.COM #define SOD_UIOAFINI(sodp) { \ 69*9491SAnders.Persson@Sun.COM if ((sodp)->sod_uioa.uioa_state & UIOA_ENABLED) { \ 70*9491SAnders.Persson@Sun.COM (sodp)->sod_uioa.uioa_state &= UIOA_CLR; \ 71*9491SAnders.Persson@Sun.COM (sodp)->sod_uioa.uioa_state |= UIOA_FINI; \ 72*9491SAnders.Persson@Sun.COM } \ 73*9491SAnders.Persson@Sun.COM } 74*9491SAnders.Persson@Sun.COM 75*9491SAnders.Persson@Sun.COM struct sonode; 76*9491SAnders.Persson@Sun.COM struct sodirect_s; 77*9491SAnders.Persson@Sun.COM 78*9491SAnders.Persson@Sun.COM extern uio_t *sod_rcv_init(struct sonode *, int, struct uio **); 79*9491SAnders.Persson@Sun.COM extern int sod_rcv_done(struct sonode *, struct uio *, struct uio *); 80*9491SAnders.Persson@Sun.COM 81*9491SAnders.Persson@Sun.COM extern void sod_uioa_mblk_init(struct sodirect_s *, mblk_t *, size_t); 82*9491SAnders.Persson@Sun.COM extern void sod_uioa_so_init(struct sonode *, struct sodirect_s *, 83*9491SAnders.Persson@Sun.COM struct uio *); 84*9491SAnders.Persson@Sun.COM extern ssize_t sod_uioa_mblk(struct sonode *, mblk_t *); 85*9491SAnders.Persson@Sun.COM extern void sod_uioa_mblk_done(struct sodirect_s *, mblk_t *); 86*9491SAnders.Persson@Sun.COM 87*9491SAnders.Persson@Sun.COM extern int sod_init(void); 88*9491SAnders.Persson@Sun.COM extern void sod_sock_init(struct sonode *); 89*9491SAnders.Persson@Sun.COM extern void sod_sock_fini(struct sonode *); 90*9491SAnders.Persson@Sun.COM 91*9491SAnders.Persson@Sun.COM #ifdef __cplusplus 92*9491SAnders.Persson@Sun.COM } 93*9491SAnders.Persson@Sun.COM #endif 94*9491SAnders.Persson@Sun.COM 95*9491SAnders.Persson@Sun.COM #endif /* _SOCKFS_SODIRECT_H */ 96