1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2000 Matthew Jacob 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31/* 32 * This file contains definitions only intended for use within 33 * sys/cam/scsi/scsi_enc*.c, and not in other kernel components. 34 */ 35 36#ifndef __SCSI_ENC_INTERNAL_H__ 37#define __SCSI_ENC_INTERNAL_H__ 38 39#include <sys/sysctl.h> 40 41typedef struct enc_element { 42 uint8_t elm_idx; /* index of element */ 43 uint8_t elm_type; /* element type */ 44 uint8_t subenclosure; /* subenclosure id */ 45 uint8_t type_elm_idx; /* index of element within type */ 46 uint8_t svalid; /* enclosure information valid */ 47 uint16_t priv; /* private data, per object */ 48 uint8_t encstat[4]; /* state && stats */ 49 uint8_t *physical_path; /* Device physical path data. */ 50 u_int physical_path_len; /* Length of device path data. */ 51 void *elm_private; /* per-type object data */ 52} enc_element_t; 53 54typedef enum { 55 ENC_NONE, 56 ENC_SES, 57 ENC_SES_PASSTHROUGH, 58 ENC_SAFT, 59 ENC_SEMB_SES, 60 ENC_SEMB_SAFT 61} enctyp; 62 63/* Platform Independent Driver Internal Definitions for enclosure devices. */ 64typedef struct enc_softc enc_softc_t; 65 66struct enc_fsm_state; 67typedef int fsm_fill_handler_t(enc_softc_t *ssc, 68 struct enc_fsm_state *state, 69 union ccb *ccb, 70 uint8_t *buf); 71typedef int fsm_error_handler_t(union ccb *ccb, uint32_t cflags, 72 uint32_t sflags); 73typedef int fsm_done_handler_t(enc_softc_t *ssc, 74 struct enc_fsm_state *state, union ccb *ccb, 75 uint8_t **bufp, int error, int xfer_len); 76 77struct enc_fsm_state { 78 const char *name; 79 int page_code; 80 size_t buf_size; 81 uint32_t timeout; 82 fsm_fill_handler_t *fill; 83 fsm_done_handler_t *done; 84 fsm_error_handler_t *error; 85}; 86 87typedef int (enc_softc_init_t)(enc_softc_t *); 88typedef void (enc_softc_invalidate_t)(enc_softc_t *); 89typedef void (enc_softc_cleanup_t)(enc_softc_t *); 90typedef int (enc_init_enc_t)(enc_softc_t *); 91typedef int (enc_get_enc_status_t)(enc_softc_t *, int); 92typedef int (enc_set_enc_status_t)(enc_softc_t *, encioc_enc_status_t, int); 93typedef int (enc_get_elm_status_t)(enc_softc_t *, encioc_elm_status_t *, int); 94typedef int (enc_set_elm_status_t)(enc_softc_t *, encioc_elm_status_t *, int); 95typedef int (enc_get_elm_desc_t)(enc_softc_t *, encioc_elm_desc_t *); 96typedef int (enc_get_elm_devnames_t)(enc_softc_t *, encioc_elm_devnames_t *); 97typedef int (enc_handle_string_t)(enc_softc_t *, encioc_string_t *, int); 98typedef void (enc_device_found_t)(enc_softc_t *); 99typedef void (enc_poll_status_t)(enc_softc_t *); 100 101struct enc_vec { 102 enc_softc_invalidate_t *softc_invalidate; 103 enc_softc_cleanup_t *softc_cleanup; 104 enc_init_enc_t *init_enc; 105 enc_get_enc_status_t *get_enc_status; 106 enc_set_enc_status_t *set_enc_status; 107 enc_get_elm_status_t *get_elm_status; 108 enc_set_elm_status_t *set_elm_status; 109 enc_get_elm_desc_t *get_elm_desc; 110 enc_get_elm_devnames_t *get_elm_devnames; 111 enc_handle_string_t *handle_string; 112 enc_device_found_t *device_found; 113 enc_poll_status_t *poll_status; 114}; 115 116typedef struct enc_cache { 117 enc_element_t *elm_map; /* objects */ 118 int nelms; /* number of objects */ 119 encioc_enc_status_t enc_status; /* overall status */ 120 void *private; /* per-type private data */ 121} enc_cache_t; 122 123/* Enclosure instance toplevel structure */ 124struct enc_softc { 125 enctyp enc_type; /* type of enclosure */ 126 struct enc_vec enc_vec; /* vector to handlers */ 127 void *enc_private; /* per-type private data */ 128 129 /** 130 * "Published" configuration and state data available to 131 * external consumers. 132 */ 133 enc_cache_t enc_cache; 134 135 /** 136 * Configuration and state data being actively updated 137 * by the enclosure daemon. 138 */ 139 enc_cache_t enc_daemon_cache; 140 141 struct sx enc_cache_lock; 142 uint8_t enc_flags; 143#define ENC_FLAG_INVALID 0x01 144#define ENC_FLAG_INITIALIZED 0x02 145#define ENC_FLAG_SHUTDOWN 0x04 146 union ccb saved_ccb; 147 struct cdev *enc_dev; 148 struct cam_periph *periph; 149 int open_count; 150 151 /* Bitmap of pending operations. */ 152 uint32_t pending_actions; 153 154 /* The action on which the state machine is currently working. */ 155 uint32_t current_action; 156#define ENC_UPDATE_NONE 0x00 157#define ENC_UPDATE_INVALID 0xff 158 159 /* Callout for auto-updating enclosure status */ 160 struct callout status_updater; 161 162 struct proc *enc_daemon; 163 164 struct enc_fsm_state *enc_fsm_states; 165 166 struct root_hold_token enc_rootmount; 167 168#define ENC_ANNOUNCE_SZ 400 169 char announce_buf[ENC_ANNOUNCE_SZ]; 170}; 171 172static inline enc_cache_t * 173enc_other_cache(enc_softc_t *enc, enc_cache_t *primary) 174{ 175 return (primary == &enc->enc_cache 176 ? &enc->enc_daemon_cache : &enc->enc_cache); 177} 178 179/* SES Management mode page - SES2r20 Table 59 */ 180struct ses_mgmt_mode_page { 181 struct scsi_mode_header_6 header; 182 struct scsi_mode_blk_desc blk_desc; 183 uint8_t byte0; /* ps : 1, spf : 1, page_code : 6 */ 184#define SES_MGMT_MODE_PAGE_CODE 0x14 185 uint8_t length; 186#define SES_MGMT_MODE_PAGE_LEN 6 187 uint8_t reserved[3]; 188 uint8_t byte5; /* reserved : 7, enbltc : 1 */ 189#define SES_MGMT_TIMED_COMP_EN 0x1 190 uint8_t max_comp_time[2]; 191}; 192 193/* Enclosure core interface for sub-drivers */ 194int enc_runcmd(struct enc_softc *, char *, int, char *, int *); 195void enc_log(struct enc_softc *, const char *, ...); 196int enc_error(union ccb *, uint32_t, uint32_t); 197void enc_update_request(enc_softc_t *, uint32_t); 198 199/* SES Native interface */ 200enc_softc_init_t ses_softc_init; 201 202/* SAF-TE interface */ 203enc_softc_init_t safte_softc_init; 204 205SYSCTL_DECL(_kern_cam_enc); 206extern int enc_verbose; 207 208/* Helper macros */ 209MALLOC_DECLARE(M_SCSIENC); 210#define ENC_CFLAGS CAM_RETRY_SELTO 211#define ENC_FLAGS SF_NO_PRINT | SF_RETRY_UA 212#define STRNCMP strncmp 213#define PRINTF printf 214#define ENC_LOG enc_log 215#if defined(DEBUG) || defined(ENC_DEBUG) 216#define ENC_DLOG enc_log 217#else 218#define ENC_DLOG if (0) enc_log 219#endif 220#define ENC_VLOG if (enc_verbose) enc_log 221#define ENC_MALLOC(amt) malloc(amt, M_SCSIENC, M_NOWAIT) 222#define ENC_MALLOCZ(amt) malloc(amt, M_SCSIENC, M_ZERO|M_NOWAIT) 223/* Cast away const avoiding GCC warnings. */ 224#define ENC_FREE(ptr) free((void *)((uintptr_t)ptr), M_SCSIENC) 225#define ENC_FREE_AND_NULL(ptr) do { \ 226 if (ptr != NULL) { \ 227 ENC_FREE(ptr); \ 228 ptr = NULL; \ 229 } \ 230} while(0) 231#define MEMZERO bzero 232#define MEMCPY(dest, src, amt) bcopy(src, dest, amt) 233 234#endif /* __SCSI_ENC_INTERNAL_H__ */ 235