px_msiq.h revision 2588:6ca5ef0f409c
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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26#ifndef _SYS_PX_MSIQ_H 27#define _SYS_PX_MSIQ_H 28 29#pragma ident "%Z%%M% %I% %E% SMI" 30 31#ifdef __cplusplus 32extern "C" { 33#endif 34 35/* 36 * MSIQ data structure. 37 */ 38struct px_msiq { 39 msiqid_t msiq_id; /* MSIQ ID */ 40 uint_t msiq_state; /* MSIQ alloc state */ 41 msiqhead_t msiq_curr_head_idx; /* MSIQ current head */ 42 msiqhead_t *msiq_base_p; /* MSIQ base pointer */ 43}; 44 45#define MSIQ_STATE_FREE 0x1 46#define MSIQ_STATE_INUSE 0x2 47 48/* 49 * MSIQ soft state structure. 50 */ 51typedef struct px_msiq_state { 52 /* Available MSIQs */ 53 uint_t msiq_cnt; /* # of MSIQs */ 54 uint_t msiq_rec_cnt; /* # of records per MSIQ */ 55 msiqid_t msiq_1st_msiq_id; /* First MSIQ ID */ 56 devino_t msiq_1st_devino; /* First devino */ 57 58 /* MSIQs specific reserved for MSI/Xs */ 59 uint_t msiq_msi_qcnt; /* # of MSIQs for MSI/Xs */ 60 msiqid_t msiq_1st_msi_qid; /* First MSIQ ID for MSI/Xs */ 61 msiqid_t msiq_next_msi_qid; /* Next MSIQ index for MSI/Xs */ 62 63 /* MSIQs specific reserved for PCIe messages */ 64 uint_t msiq_msg_qcnt; /* # of MSIQs for PCIe msgs */ 65 msiqid_t msiq_1st_msg_qid; /* First MSIQ ID for PCIe msgs */ 66 msiqid_t msiq_next_msg_qid; /* Next MSIQ index for PCIe msgs */ 67 68 px_msiq_t *msiq_p; /* Pointer to MSIQs array */ 69 void *msiq_buf_p; /* Pointer to MSIQs array */ 70 kmutex_t msiq_mutex; /* Mutex for MSIQ alloc/free */ 71} px_msiq_state_t; 72 73/* 74 * px_msi_eq_to_devino 75 */ 76typedef struct px_msi_eq_to_devino { 77 int msi_eq_no; 78 int no_msi_eqs; 79 int devino_no; 80} px_msi_eq_to_devino_t; 81 82/* 83 * Default MSIQ Configurations 84 */ 85#define PX_DEFAULT_MSIQ_CNT 36 86#define PX_DEFAULT_MSIQ_REC_CNT 128 87#define PX_DEFAULT_MSIQ_1ST_MSIQ_ID 0 88#define PX_DEFAULT_MSIQ_1ST_DEVINO 24 89 90extern int px_msiq_attach(px_t *px_p); 91extern void px_msiq_detach(px_t *px_p); 92extern void px_msiq_resume(px_t *px_p); 93 94extern int px_msiq_alloc(px_t *px_p, msiq_rec_type_t rec_type, 95 msiqid_t *msiq_id_p); 96extern int px_msiq_free(px_t *px_p, msiqid_t msiq_id); 97 98extern devino_t px_msiqid_to_devino(px_t *px_p, msiqid_t msiq_id); 99extern msiqid_t px_devino_to_msiqid(px_t *px_p, devino_t devino); 100 101#ifdef __cplusplus 102} 103#endif 104 105#endif /* _SYS_PX_MSIQ_H */ 106