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 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_PX_IB_H 27 #define _SYS_PX_IB_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <sys/ddi_subrdefs.h> 34 #include <sys/pci_tools.h> 35 36 typedef struct px_ib px_ib_t; 37 typedef struct px_ino px_ino_t; 38 typedef struct px_ino_pil px_ino_pil_t; 39 typedef struct px_ih px_ih_t; 40 41 /* 42 * interrupt block soft state structure: 43 * 44 * Each px node may share an interrupt block structure with its peer 45 * node or have its own private interrupt block structure. 46 */ 47 struct px_ib { 48 px_t *ib_px_p; /* link back to px soft state */ 49 px_ino_t *ib_ino_lst; /* ino link list */ 50 kmutex_t ib_ino_lst_mutex; /* mutex for ino link list */ 51 kmutex_t ib_intr_lock; /* lock for internal intr */ 52 53 px_msiq_state_t ib_msiq_state; /* MSIQ soft state */ 54 px_msi_state_t ib_msi_state; /* MSI soft state */ 55 }; 56 57 /* 58 * ih structure: one per every consumer of each ino and pil pair with interrupt 59 * registered. 60 */ 61 struct px_ih { 62 dev_info_t *ih_dip; /* devinfo structure */ 63 uint32_t ih_inum; /* interrupt number for this device */ 64 uint_t (*ih_handler)(); /* interrupt handler */ 65 caddr_t ih_handler_arg1; /* interrupt handler argument #1 */ 66 caddr_t ih_handler_arg2; /* interrupt handler argument #2 */ 67 ddi_acc_handle_t ih_config_handle; /* config space reg map handle */ 68 uint_t ih_intr_state; /* only used for fixed interrupts */ 69 msiq_rec_type_t ih_rec_type; /* MSI or PCIe record type */ 70 msgcode_t ih_msg_code; /* MSI number or PCIe message code */ 71 uint8_t ih_intr_flags; /* interrupt handler status flags */ 72 px_ih_t *ih_next; /* Next entry in list */ 73 uint64_t ih_ticks; /* ticks spent in this handler */ 74 uint64_t ih_nsec; /* nsec spent in this handler */ 75 kstat_t *ih_ksp; /* pointer to kstat information */ 76 px_ino_pil_t *ih_ipil_p; /* only for use by kstat */ 77 }; 78 79 /* Only used for fixed or legacy interrupts */ 80 #define PX_INTR_STATE_DISABLE 0 /* disabled */ 81 #define PX_INTR_STATE_ENABLE 1 /* enabled */ 82 83 /* Only used for MSI/X to track interrupt handler status */ 84 #define PX_INTR_IDLE 0x0 /* handler is idle */ 85 #define PX_INTR_RETARGET 0x1 /* retarget in progress */ 86 #define PX_INTR_PENDING 0x2 /* handler is pending */ 87 88 /* 89 * ino_pil structure: one per each ino and pil pair with interrupt registered 90 */ 91 struct px_ino_pil { 92 ushort_t ipil_pil; /* pil for this ino */ 93 ushort_t ipil_ih_size; /* size of px_ih_t list */ 94 px_ih_t *ipil_ih_head; /* px_ih_t list head */ 95 px_ih_t *ipil_ih_tail; /* px_ih_t list tail */ 96 px_ih_t *ipil_ih_start; /* starting point in px_ih_t list */ 97 px_ino_t *ipil_ino_p; /* pointer to px_ino_t structure */ 98 px_ino_pil_t *ipil_next_p; /* pointer to next px_ino_pil_t */ 99 }; 100 101 /* 102 * ino structure: one per each ino with interrupt registered 103 */ 104 struct px_ino { 105 devino_t ino_ino; /* INO number - 8 bit */ 106 sysino_t ino_sysino; /* Virtual inumber */ 107 px_ib_t *ino_ib_p; /* link back to interrupt block state */ 108 uint_t ino_unclaimed_intrs; /* number of unclaimed intrs */ 109 clock_t ino_spurintr_begin; /* begin time of spurious intr */ 110 cpuid_t ino_cpuid; /* current cpu for this ino */ 111 cpuid_t ino_default_cpuid; /* default cpu for this ino */ 112 int32_t ino_intr_weight; /* intr wt of devices sharing ino */ 113 ushort_t ino_ipil_size; /* no of px_ino_pil_t sharing ino */ 114 ushort_t ino_lopil; /* lowest pil sharing ino */ 115 ushort_t ino_claimed; /* pil bit masks, who claimed intr */ 116 px_msiq_t *ino_msiq_p; /* pointer to MSIQ used */ 117 px_ino_pil_t *ino_ipil_p; /* pointer to first px_ino_pil_t */ 118 px_ino_t *ino_next_p; /* pointer to next px_ino_t */ 119 ushort_t ino_ipil_cntr; /* counter for pil sharing ino */ 120 }; 121 122 #define IB_INTR_WAIT 1 /* wait for interrupt completion */ 123 #define IB_INTR_NOWAIT 0 /* already handling intr, no wait */ 124 125 #define PX_INTR_ENABLE(dip, sysino, cpuid) \ 126 (void) px_lib_intr_settarget(dip, sysino, cpuid); \ 127 (void) px_lib_intr_setvalid(dip, sysino, INTR_VALID); 128 129 #define PX_INTR_DISABLE(dip, sysino) \ 130 (void) px_lib_intr_setvalid(dip, sysino, INTR_NOTVALID); 131 132 extern int px_ib_attach(px_t *px_p); 133 extern void px_ib_detach(px_t *px_p); 134 extern void px_ib_intr_enable(px_t *px_p, cpuid_t cpuid, devino_t ino); 135 extern void px_ib_intr_disable(px_ib_t *ib_p, devino_t ino, int wait); 136 extern void px_ib_intr_dist_en(dev_info_t *dip, cpuid_t cpu_id, devino_t ino, 137 boolean_t wait_flag); 138 139 extern px_ino_t *px_ib_locate_ino(px_ib_t *ib_p, devino_t ino_num); 140 extern void px_ib_free_ino_all(px_ib_t *ib_p); 141 142 extern px_ino_pil_t *px_ib_ino_locate_ipil(px_ino_t *ino_p, uint_t pil); 143 extern px_ino_t *px_ib_alloc_ino(px_ib_t *ib_p, devino_t ino_num); 144 extern px_ino_pil_t *px_ib_new_ino_pil(px_ib_t *ib_p, devino_t ino_num, 145 uint_t pil, px_ih_t *ih_p); 146 extern void px_ib_delete_ino_pil(px_ib_t *ib_p, px_ino_pil_t *ipil_p); 147 extern int px_ib_ino_add_intr(px_t *px_p, px_ino_pil_t *ipil_p, px_ih_t *ih_p); 148 extern int px_ib_ino_rem_intr(px_t *px_p, px_ino_pil_t *ipil_p, px_ih_t *ih_p); 149 150 extern px_ih_t *px_ib_intr_locate_ih(px_ino_pil_t *ipil_p, dev_info_t *dip, 151 uint32_t inum, msiq_rec_type_t rec_type, msgcode_t msg_code); 152 extern px_ih_t *px_ib_alloc_ih(dev_info_t *rdip, uint32_t inum, 153 uint_t (*int_handler)(caddr_t int_handler_arg1, 154 caddr_t int_handler_arg2), caddr_t int_handler_arg1, 155 caddr_t int_handler_arg2, msiq_rec_type_t rec_type, msgcode_t msg_code); 156 extern void px_ib_free_ih(px_ih_t *ih_p); 157 extern int px_ib_update_intr_state(px_t *px_p, dev_info_t *rdip, uint_t inum, 158 devino_t ino, uint_t pil, uint_t new_intr_state, 159 msiq_rec_type_t rec_type, msgcode_t msg_code); 160 extern int px_ib_get_intr_target(px_t *px_p, devino_t ino, cpuid_t *cpu_id_p); 161 extern int px_ib_set_intr_target(px_t *px_p, devino_t ino, cpuid_t cpu_id); 162 extern int px_ib_set_msix_target(px_t *px_p, ddi_intr_handle_impl_t *hdlp, 163 msinum_t msi_num, cpuid_t cpuid); 164 extern uint8_t pxtool_ib_get_ino_devs(px_t *px_p, uint32_t ino, 165 uint32_t msi_num, uint8_t *devs_ret, pcitool_intr_dev_t *devs); 166 extern int pxtool_ib_get_msi_info(px_t *px_p, devino_t ino, msinum_t msi_num, 167 ddi_intr_handle_impl_t *hdlp); 168 extern void px_ib_log_new_cpu(px_ib_t *ib_p, cpuid_t old_cpu_id, 169 cpuid_t new_cpu_id, uint32_t ino); 170 171 #ifdef __cplusplus 172 } 173 #endif 174 175 #endif /* _SYS_PX_IB_H */ 176