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 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_BLK_COMMON_H 28 #define _SYS_BLK_COMMON_H 29 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #include <sys/types.h> 36 #include <sys/xendev.h> 37 38 39 typedef uint_t (*blk_intr_t)(caddr_t arg); 40 typedef void (*blk_ring_cb_t)(caddr_t arg); 41 42 typedef struct blk_ringinit_args_s { 43 dev_info_t *ar_dip; 44 45 /* callbacks */ 46 blk_intr_t ar_intr; 47 caddr_t ar_intr_arg; 48 blk_ring_cb_t ar_ringup; 49 caddr_t ar_ringup_arg; 50 blk_ring_cb_t ar_ringdown; 51 caddr_t ar_ringdown_arg; 52 } blk_ringinit_args_t; 53 54 typedef struct blk_ring_s *blk_ring_t; 55 56 int blk_ring_init(blk_ringinit_args_t *args, blk_ring_t *ring); 57 void blk_ring_fini(blk_ring_t *ring); 58 59 boolean_t blk_ring_request_get(blk_ring_t ring, blkif_request_t *req); 60 void blk_ring_request_requeue(blk_ring_t ring); 61 void blk_ring_request_dump(blkif_request_t *req); 62 63 void blk_ring_response_put(blk_ring_t ring, blkif_response_t *resp); 64 void blk_ring_response_dump(blkif_response_t *req); 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 #endif /* _SYS_BLK_COMMON_H */ 71