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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_PX_MSIQ_H 28 #define _SYS_PX_MSIQ_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * MSIQ data structure. 38 */ 39 struct px_msiq { 40 msiqid_t msiq_id; /* MSIQ ID */ 41 uint_t msiq_state; /* MSIQ alloc state */ 42 msiqhead_t msiq_base; /* MSIQ base pointer */ 43 msiqtail_t msiq_curr; /* MSIQ Curr pointer */ 44 }; 45 46 #define MSIQ_STATE_FREE 0x1 47 #define MSIQ_STATE_INUSE 0x2 48 49 /* 50 * MSIQ soft state structure. 51 */ 52 typedef struct px_msiq_state { 53 /* Available MSIQs */ 54 uint_t msiq_cnt; /* # of MSIQs */ 55 uint_t msiq_rec_cnt; /* # of records per MSIQ */ 56 msiqid_t msiq_1st_msiq_id; /* First MSIQ ID */ 57 devino_t msiq_1st_devino; /* First devino */ 58 59 /* MSIQs specific reserved for MSI/Xs */ 60 uint_t msiq_msi_qcnt; /* # of MSIQs for MSI/Xs */ 61 msiqid_t msiq_1st_msi_qid; /* First MSIQ ID for MSI/Xs */ 62 msiqid_t msiq_next_msi_qid; /* Next MSIQ index for MSI/Xs */ 63 64 /* MSIQs specific reserved for PCIe messages */ 65 uint_t msiq_msg_qcnt; /* # of MSIQs for PCIe msgs */ 66 msiqid_t msiq_1st_msg_qid; /* First MSIQ ID for PCIe msgs */ 67 msiqid_t msiq_next_msg_qid; /* Next MSIQ index for PCIe msgs */ 68 69 px_msiq_t *msiq_p; /* Pointer to MSIQs array */ 70 void *msiq_buf_p; /* Pointer to MSIQs array */ 71 kmutex_t msiq_mutex; /* Mutex for MSIQ alloc/free */ 72 } px_msiq_state_t; 73 74 /* 75 * px_msi_eq_to_devino 76 */ 77 typedef struct px_msi_eq_to_devino { 78 int msi_eq_no; 79 int no_msi_eqs; 80 int devino_no; 81 } px_msi_eq_to_devino_t; 82 83 /* 84 * Default MSIQ Configurations 85 */ 86 #define PX_DEFAULT_MSIQ_CNT 36 87 #define PX_DEFAULT_MSIQ_REC_CNT 128 88 #define PX_DEFAULT_MSIQ_1ST_MSIQ_ID 0 89 #define PX_DEFAULT_MSIQ_1ST_DEVINO 24 90 91 extern int px_msiq_attach(px_t *px_p); 92 extern void px_msiq_detach(px_t *px_p); 93 94 extern int px_msiq_alloc(px_t *px_p, msiq_rec_type_t rec_type, 95 msiqid_t *msiq_id_p); 96 extern int px_msiq_free(px_t *px_p, msiqid_t msiq_id); 97 98 extern devino_t px_msiqid_to_devino(px_t *px_p, msiqid_t msiq_id); 99 extern 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