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_MSI_H 28 #define _SYS_PX_MSI_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * MSI data structure. 38 */ 39 typedef struct px_msi { 40 dev_info_t *msi_dip; /* MSI consumer dip */ 41 int msi_inum; /* INUM for this device */ 42 uint_t msi_state; /* MSI alloc state */ 43 msinum_t msi_msinum; /* MSI number */ 44 msiqid_t msi_msiq_id; /* MSIQ used */ 45 } px_msi_t; 46 47 #define MSI_STATE_FREE 0x1 48 #define MSI_STATE_INUSE 0x2 49 50 /* 51 * MSI soft state structure. 52 */ 53 typedef struct px_msi_state { 54 uint_t msi_cnt; /* No of MSIs */ 55 msinum_t msi_1st_msinum; /* First MSI number */ 56 uint_t msi_data_mask; /* MSI data mask */ 57 uint_t msi_data_width; /* MSI data width */ 58 uint64_t msi_addr32; /* MSI 32 address */ 59 uint64_t msi_addr32_len; /* MSI 32 length */ 60 uint64_t msi_addr64; /* MSI 64 address */ 61 uint64_t msi_addr64_len; /* MSI 64 length */ 62 63 px_msi_t *msi_p; /* Pointer to MSIs array */ 64 kmutex_t msi_mutex; /* Mutex for MSI alloc/free */ 65 uint_t msi_type; /* MSI or MSI-X */ 66 boolean_t msi_mem_flg; /* TRUE if driver allocates memory */ 67 } px_msi_state_t; 68 69 /* 70 * px_msi_ranges 71 */ 72 typedef struct px_msi_ranges { 73 int msi_no; 74 int no_msis; 75 } px_msi_ranges_t; 76 77 /* 78 * px_msi_address_ranges 79 */ 80 typedef struct px_msi_address_ranges { 81 uint32_t msi_addr32_hi; 82 uint32_t msi_addr32_lo; 83 uint32_t msi_addr32_len; 84 uint32_t msi_addr64_hi; 85 uint32_t msi_addr64_lo; 86 uint32_t msi_addr64_len; 87 } px_msi_address_ranges_t; 88 89 /* 90 * Default MSI configurations 91 */ 92 #define PX_DEFAULT_MSI_CNT 256 93 #define PX_DEFAULT_MSI_1ST_MSINUM 0 94 #define PX_DEFAULT_MSI_DATA_MASK 0xff 95 #define PX_DEFAULT_MSI_DATA_WIDTH 16 96 97 #define PX_MSI_WIDTH 16 98 #define PX_MSIX_WIDTH 32 99 100 extern int px_msi_attach(px_t *px_p); 101 extern void px_msi_detach(px_t *px_p); 102 103 extern int px_msi_alloc(px_t *px_p, dev_info_t *rdip, int inum, 104 int msi_count, int flag, msinum_t *msi_num_p, 105 int *actual_msi_count_p); 106 extern int px_msi_free(px_t *px_p, dev_info_t *rdip, int inum, 107 int msi_count); 108 109 extern int px_msi_get_msinum(px_t *px_p, dev_info_t *rdip, 110 int inum, msinum_t *msi_num_p); 111 112 #ifdef __cplusplus 113 } 114 #endif 115 116 #endif /* _SYS_PX_MSI_H */ 117