1229997Sken/*- 2229997Sken * Copyright (c) 2003 Silicon Graphics International Corp. 3229997Sken * All rights reserved. 4229997Sken * 5229997Sken * Redistribution and use in source and binary forms, with or without 6229997Sken * modification, are permitted provided that the following conditions 7229997Sken * are met: 8229997Sken * 1. Redistributions of source code must retain the above copyright 9229997Sken * notice, this list of conditions, and the following disclaimer, 10229997Sken * without modification. 11229997Sken * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12229997Sken * substantially similar to the "NO WARRANTY" disclaimer below 13229997Sken * ("Disclaimer") and any redistribution must be conditioned upon 14229997Sken * including a substantially similar Disclaimer requirement for further 15229997Sken * binary redistribution. 16229997Sken * 17229997Sken * NO WARRANTY 18229997Sken * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19229997Sken * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20229997Sken * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 21229997Sken * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22229997Sken * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23229997Sken * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24229997Sken * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25229997Sken * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26229997Sken * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27229997Sken * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28229997Sken * POSSIBILITY OF SUCH DAMAGES. 29229997Sken * 30229997Sken * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_io.h#5 $ 31229997Sken * $FreeBSD$ 32229997Sken */ 33229997Sken/* 34229997Sken * CAM Target Layer data movement structures/interface. 35229997Sken * 36229997Sken * Author: Ken Merry <ken@FreeBSD.org> 37229997Sken */ 38229997Sken 39229997Sken#ifndef _CTL_IO_H_ 40229997Sken#define _CTL_IO_H_ 41229997Sken 42229997Sken#ifdef _CTL_C 43229997Sken#define EXTERN(__var,__val) __var = __val 44229997Sken#else 45229997Sken#define EXTERN(__var,__val) extern __var 46229997Sken#endif 47229997Sken 48229997Sken#define CTL_MAX_CDBLEN 32 49229997Sken/* 50229997Sken * Uncomment this next line to enable printing out times for I/Os 51229997Sken * that take longer than CTL_TIME_IO_SECS seconds to get to the datamove 52229997Sken * and/or done stage. 53229997Sken */ 54229997Sken#define CTL_TIME_IO 55229997Sken#ifdef CTL_TIME_IO 56229997Sken#define CTL_TIME_IO_DEFAULT_SECS 90 57229997SkenEXTERN(int ctl_time_io_secs, CTL_TIME_IO_DEFAULT_SECS); 58229997Sken#endif 59229997Sken 60229997Sken/* 61229997Sken * Uncomment these next two lines to enable the CTL I/O delay feature. You 62229997Sken * can delay I/O at two different points -- datamove and done. This is 63229997Sken * useful for diagnosing abort conditions (for hosts that send an abort on a 64229997Sken * timeout), and for determining how long a host's timeout is. 65229997Sken */ 66229997Sken#define CTL_IO_DELAY 67229997Sken#define CTL_TIMER_BYTES sizeof(struct callout) 68229997Sken 69229997Skentypedef enum { 70229997Sken CTL_STATUS_NONE, /* No status */ 71229997Sken CTL_SUCCESS, /* Transaction completed successfully */ 72229997Sken CTL_CMD_TIMEOUT, /* Command timed out, shouldn't happen here */ 73229997Sken CTL_SEL_TIMEOUT, /* Selection timeout, shouldn't happen here */ 74229997Sken CTL_ERROR, /* General CTL error XXX expand on this? */ 75229997Sken CTL_SCSI_ERROR, /* SCSI error, look at status byte/sense data */ 76229997Sken CTL_CMD_ABORTED, /* Command aborted, don't return status */ 77229997Sken CTL_STATUS_MASK = 0xfff,/* Mask off any status flags */ 78229997Sken CTL_AUTOSENSE = 0x1000 /* Autosense performed */ 79229997Sken} ctl_io_status; 80229997Sken 81229997Sken/* 82229997Sken * WARNING: Keep the data in/out/none flags where they are. They're used 83229997Sken * in conjuction with ctl_cmd_flags. See comment above ctl_cmd_flags 84229997Sken * definition in ctl_private.h. 85229997Sken */ 86229997Skentypedef enum { 87229997Sken CTL_FLAG_NONE = 0x00000000, /* no flags */ 88229997Sken CTL_FLAG_DATA_IN = 0x00000001, /* DATA IN */ 89229997Sken CTL_FLAG_DATA_OUT = 0x00000002, /* DATA OUT */ 90229997Sken CTL_FLAG_DATA_NONE = 0x00000003, /* no data */ 91229997Sken CTL_FLAG_DATA_MASK = 0x00000003, 92229997Sken CTL_FLAG_KDPTR_SGLIST = 0x00000008, /* kern_data_ptr is S/G list*/ 93229997Sken CTL_FLAG_EDPTR_SGLIST = 0x00000010, /* ext_data_ptr is S/G list */ 94229997Sken CTL_FLAG_DO_AUTOSENSE = 0x00000020, /* grab sense info */ 95229997Sken CTL_FLAG_USER_REQ = 0x00000040, /* request came from userland */ 96229997Sken CTL_FLAG_CONTROL_DEV = 0x00000080, /* processor device */ 97229997Sken CTL_FLAG_ALLOCATED = 0x00000100, /* data space allocated */ 98229997Sken CTL_FLAG_BLOCKED = 0x00000200, /* on the blocked queue */ 99229997Sken CTL_FLAG_ABORT = 0x00000800, /* this I/O should be aborted */ 100229997Sken CTL_FLAG_DMA_INPROG = 0x00001000, /* DMA in progress */ 101229997Sken CTL_FLAG_NO_DATASYNC = 0x00002000, /* don't cache flush data */ 102229997Sken CTL_FLAG_DELAY_DONE = 0x00004000, /* delay injection done */ 103229997Sken CTL_FLAG_INT_COPY = 0x00008000, /* internal copy, no done call*/ 104229997Sken CTL_FLAG_SENT_2OTHER_SC = 0x00010000, 105229997Sken CTL_FLAG_FROM_OTHER_SC = 0x00020000, 106229997Sken CTL_FLAG_IS_WAS_ON_RTR = 0x00040000, /* Don't rerun cmd on failover*/ 107229997Sken CTL_FLAG_BUS_ADDR = 0x00080000, /* ctl_sglist contains BUS 108229997Sken addresses, not virtual ones*/ 109229997Sken CTL_FLAG_IO_CONT = 0x00100000, /* Continue I/O instead of 110229997Sken completing */ 111229997Sken CTL_FLAG_AUTO_MIRROR = 0x00200000, /* Automatically use memory 112229997Sken from the RC cache mirrored 113229997Sken address area. */ 114229997Sken#if 0 115229997Sken CTL_FLAG_ALREADY_DONE = 0x00200000 /* I/O already completed */ 116229997Sken#endif 117229997Sken CTL_FLAG_NO_DATAMOVE = 0x00400000, 118229997Sken CTL_FLAG_DMA_QUEUED = 0x00800000, /* DMA queued but not started*/ 119229997Sken CTL_FLAG_STATUS_QUEUED = 0x01000000, /* Status queued but not sent*/ 120229997Sken 121229997Sken CTL_FLAG_REDIR_DONE = 0x02000000, /* Redirection has already 122229997Sken been done. */ 123229997Sken CTL_FLAG_FAILOVER = 0x04000000, /* Killed by a failover */ 124229997Sken CTL_FLAG_IO_ACTIVE = 0x08000000, /* I/O active on this SC */ 125229997Sken CTL_FLAG_RDMA_MASK = CTL_FLAG_NO_DATASYNC | CTL_FLAG_BUS_ADDR | 126229997Sken CTL_FLAG_AUTO_MIRROR | CTL_FLAG_REDIR_DONE 127229997Sken /* Flags we care about for 128229997Sken remote DMA */ 129229997Sken} ctl_io_flags; 130229997Sken 131229997Sken 132229997Skenstruct ctl_lba_len { 133229997Sken uint64_t lba; 134229997Sken uint32_t len; 135229997Sken}; 136229997Sken 137229997Skenunion ctl_priv { 138229997Sken uint8_t bytes[sizeof(uint64_t) * 2]; 139229997Sken uint64_t integer; 140229997Sken void *ptr; 141229997Sken}; 142229997Sken 143229997Sken/* 144229997Sken * Number of CTL private areas. 145229997Sken */ 146229997Sken#define CTL_NUM_PRIV 6 147229997Sken 148229997Sken/* 149229997Sken * Which private area are we using for a particular piece of data? 150229997Sken */ 151229997Sken#define CTL_PRIV_LUN 0 /* CTL LUN pointer goes here */ 152229997Sken#define CTL_PRIV_LBA_LEN 1 /* Decoded LBA/len for read/write*/ 153229997Sken#define CTL_PRIV_MODEPAGE 1 /* Modepage info for config write */ 154229997Sken#define CTL_PRIV_BACKEND 2 /* Reserved for block, RAIDCore */ 155229997Sken#define CTL_PRIV_BACKEND_LUN 3 /* Backend LUN pointer */ 156229997Sken#define CTL_PRIV_FRONTEND 4 /* LSI driver, ioctl front end */ 157229997Sken#define CTL_PRIV_USER 5 /* Userland use */ 158229997Sken 159229997Sken#define CTL_INVALID_PORTNAME 0xFF 160229997Sken#define CTL_UNMAPPED_IID 0xFF 161229997Sken/* 162229997Sken * XXX KDM this size is for the port_priv variable in struct ctl_io_hdr 163229997Sken * below. This should be defined in terms of the size of struct 164229997Sken * ctlfe_lun_cmd_info at the moment: 165229997Sken * struct ctlfe_lun_cmd_info { 166229997Sken * int cur_transfer_index; 167229997Sken * ctlfe_cmd_flags flags; 168229997Sken * bus_dma_segment_t cam_sglist[32]; 169229997Sken * }; 170229997Sken * 171229997Sken * This isn't really the way I'd prefer to do it, but it does make some 172229997Sken * sense, AS LONG AS we can guarantee that there will always only be one 173229997Sken * outstanding DMA request per ctl_io. If that assumption isn't valid, 174229997Sken * then we've got problems. 175229997Sken * 176229997Sken * At some point it may be nice switch CTL over to using CCBs for 177229997Sken * everything. At that point we can probably use the ATIO/CTIO model, so 178229997Sken * that multiple simultaneous DMAs per command will just work. 179229997Sken * 180229997Sken * Also note that the current size, 600, is appropriate for 64-bit 181229997Sken * architectures, but is overkill for 32-bit architectures. Need a way to 182229997Sken * figure out the size at compile time, or just get rid of this altogether. 183229997Sken */ 184229997Sken#define CTL_PORT_PRIV_SIZE 600 185229997Sken 186229997Skenstruct ctl_sg_entry { 187229997Sken void *addr; 188229997Sken size_t len; 189229997Sken}; 190229997Sken 191229997Skenstruct ctl_id { 192229997Sken uint32_t id; 193229997Sken uint64_t wwid[2]; 194229997Sken}; 195229997Sken 196229997Skentypedef enum { 197229997Sken CTL_IO_NONE, 198229997Sken CTL_IO_SCSI, 199229997Sken CTL_IO_TASK, 200229997Sken} ctl_io_type; 201229997Sken 202229997Skenstruct ctl_nexus { 203229997Sken struct ctl_id initid; /* Initiator ID */ 204229997Sken uint32_t targ_port; /* Target port, filled in by PORT */ 205229997Sken struct ctl_id targ_target; /* Destination target */ 206229997Sken uint32_t targ_lun; /* Destination lun */ 207229997Sken}; 208229997Sken 209229997Skentypedef enum { 210229997Sken CTL_MSG_SERIALIZE, 211229997Sken CTL_MSG_R2R, 212229997Sken CTL_MSG_FINISH_IO, 213229997Sken CTL_MSG_BAD_JUJU, 214229997Sken CTL_MSG_MANAGE_TASKS, 215229997Sken CTL_MSG_PERS_ACTION, 216229997Sken CTL_MSG_SYNC_FE, 217229997Sken CTL_MSG_APS_LOCK, 218229997Sken CTL_MSG_DATAMOVE, 219229997Sken CTL_MSG_DATAMOVE_DONE 220229997Sken} ctl_msg_type; 221229997Sken 222229997Skenstruct ctl_scsiio; 223229997Sken 224229997Sken#define CTL_NUM_SG_ENTRIES 9 225229997Sken 226229997Skenstruct ctl_io_hdr { 227229997Sken uint32_t version; /* interface version XXX */ 228229997Sken ctl_io_type io_type; /* task I/O, SCSI I/O, etc. */ 229229997Sken ctl_msg_type msg_type; 230229997Sken struct ctl_nexus nexus; /* Initiator, port, target, lun */ 231229997Sken uint32_t iid_indx; /* the index into the iid mapping */ 232229997Sken uint32_t flags; /* transaction flags */ 233229997Sken uint32_t status; /* transaction status */ 234229997Sken uint32_t port_status; /* trans status, set by PORT, 0 = good*/ 235229997Sken uint32_t timeout; /* timeout in ms */ 236229997Sken uint32_t retries; /* retry count */ 237229997Sken#ifdef CTL_IO_DELAY 238229997Sken uint8_t timer_bytes[CTL_TIMER_BYTES]; /* timer kludge */ 239229997Sken#endif /* CTL_IO_DELAY */ 240229997Sken#ifdef CTL_TIME_IO 241229997Sken time_t start_time; /* I/O start time */ 242229997Sken struct bintime start_bt; /* Timer start ticks */ 243229997Sken struct bintime dma_start_bt; /* DMA start ticks */ 244229997Sken struct bintime dma_bt; /* DMA total ticks */ 245229997Sken uint32_t num_dmas; /* Number of DMAs */ 246229997Sken#endif /* CTL_TIME_IO */ 247229997Sken union ctl_io *original_sc; 248229997Sken union ctl_io *serializing_sc; 249229997Sken void *pool; /* I/O pool */ 250229997Sken union ctl_priv ctl_private[CTL_NUM_PRIV];/* CTL private area */ 251229997Sken uint8_t port_priv[CTL_PORT_PRIV_SIZE];/* PORT private area*/ 252229997Sken struct ctl_sg_entry remote_sglist[CTL_NUM_SG_ENTRIES]; 253229997Sken struct ctl_sg_entry remote_dma_sglist[CTL_NUM_SG_ENTRIES]; 254229997Sken struct ctl_sg_entry local_sglist[CTL_NUM_SG_ENTRIES]; 255229997Sken struct ctl_sg_entry local_dma_sglist[CTL_NUM_SG_ENTRIES]; 256229997Sken STAILQ_ENTRY(ctl_io_hdr) links; /* linked list pointer */ 257229997Sken TAILQ_ENTRY(ctl_io_hdr) ooa_links; 258229997Sken TAILQ_ENTRY(ctl_io_hdr) blocked_links; 259229997Sken}; 260229997Sken 261229997Skentypedef enum { 262229997Sken CTL_TAG_UNTAGGED, 263229997Sken CTL_TAG_SIMPLE, 264229997Sken CTL_TAG_ORDERED, 265229997Sken CTL_TAG_HEAD_OF_QUEUE, 266229997Sken CTL_TAG_ACA 267229997Sken} ctl_tag_type; 268229997Sken 269229997Skenunion ctl_io; 270229997Sken 271229997Sken/* 272229997Sken * SCSI passthrough I/O structure for the CAM Target Layer. Note 273229997Sken * that some of these fields are here for completeness, but they aren't 274229997Sken * used in the CTL implementation. e.g., timeout and retries won't be 275229997Sken * used. 276229997Sken * 277229997Sken * Note: Make sure the io_hdr is *always* the first element in this 278229997Sken * structure. 279229997Sken */ 280229997Skenstruct ctl_scsiio { 281229997Sken struct ctl_io_hdr io_hdr; /* common to all I/O types */ 282229997Sken uint32_t ext_sg_entries; /* 0 = no S/G list, > 0 = num entries */ 283229997Sken uint8_t *ext_data_ptr; /* data buffer or S/G list */ 284229997Sken uint32_t ext_data_len; /* Data transfer length */ 285229997Sken uint32_t ext_data_filled; /* Amount of data filled so far */ 286229997Sken uint32_t kern_sg_entries; /* 0 = no S/G list, > 0 = num entries */ 287229997Sken uint32_t rem_sg_entries; /* 0 = no S/G list, > 0 = num entries */ 288229997Sken uint8_t *kern_data_ptr; /* data buffer or S/G list */ 289229997Sken uint32_t kern_data_len; /* Length of this S/G list/buffer */ 290229997Sken uint32_t kern_total_len; /* Total length of this transaction */ 291229997Sken uint32_t kern_data_resid; /* Length left to transfer after this*/ 292229997Sken uint32_t kern_rel_offset; /* Byte Offset of this transfer */ 293229997Sken struct scsi_sense_data sense_data; /* sense data */ 294229997Sken uint8_t sense_len; /* Returned sense length */ 295229997Sken uint8_t scsi_status; /* SCSI status byte */ 296229997Sken uint8_t sense_residual; /* sense residual length */ 297229997Sken uint32_t residual; /* data residual length */ 298229997Sken uint32_t tag_num; /* tag number */ 299229997Sken ctl_tag_type tag_type; /* simple, ordered, head of queue,etc.*/ 300229997Sken uint8_t cdb_len; /* CDB length */ 301229997Sken uint8_t cdb[CTL_MAX_CDBLEN]; /* CDB */ 302229997Sken int (*be_move_done)(union ctl_io *io); /* called by fe */ 303229997Sken int (*io_cont)(union ctl_io *io); /* to continue processing */ 304229997Sken}; 305229997Sken 306229997Skentypedef enum { 307229997Sken CTL_TASK_ABORT_TASK, 308229997Sken CTL_TASK_ABORT_TASK_SET, 309229997Sken CTL_TASK_CLEAR_ACA, 310229997Sken CTL_TASK_CLEAR_TASK_SET, 311229997Sken CTL_TASK_LUN_RESET, 312229997Sken CTL_TASK_TARGET_RESET, 313229997Sken CTL_TASK_BUS_RESET, 314229997Sken CTL_TASK_PORT_LOGIN, 315229997Sken CTL_TASK_PORT_LOGOUT 316229997Sken} ctl_task_type; 317229997Sken 318229997Sken/* 319229997Sken * Task management I/O structure. Aborts, bus resets, etc., are sent using 320229997Sken * this structure. 321229997Sken * 322229997Sken * Note: Make sure the io_hdr is *always* the first element in this 323229997Sken * structure. 324229997Sken */ 325229997Skenstruct ctl_taskio { 326229997Sken struct ctl_io_hdr io_hdr; /* common to all I/O types */ 327229997Sken ctl_task_type task_action; /* Target Reset, Abort, etc. */ 328229997Sken uint32_t tag_num; /* tag number */ 329229997Sken ctl_tag_type tag_type; /* simple, ordered, etc. */ 330229997Sken}; 331229997Sken 332229997Skentypedef enum { 333229997Sken CTL_PR_REG_KEY, 334229997Sken CTL_PR_UNREG_KEY, 335229997Sken CTL_PR_PREEMPT, 336229997Sken CTL_PR_CLEAR, 337229997Sken CTL_PR_RESERVE, 338229997Sken CTL_PR_RELEASE 339229997Sken} ctl_pr_action; 340229997Sken 341229997Sken/* 342229997Sken * The PR info is specifically for sending Persistent Reserve actions 343229997Sken * to the other SC which it must also act on. 344229997Sken * 345229997Sken * Note: Make sure the io_hdr is *always* the first element in this 346229997Sken * structure. 347229997Sken */ 348229997Skenstruct ctl_pr_info { 349229997Sken ctl_pr_action action; 350229997Sken uint8_t sa_res_key[8]; 351229997Sken uint8_t res_type; 352229997Sken uint16_t residx; 353229997Sken}; 354229997Sken 355229997Skenstruct ctl_ha_msg_hdr { 356229997Sken ctl_msg_type msg_type; 357229997Sken union ctl_io *original_sc; 358229997Sken union ctl_io *serializing_sc; 359229997Sken struct ctl_nexus nexus; /* Initiator, port, target, lun */ 360229997Sken uint32_t status; /* transaction status */ 361229997Sken TAILQ_ENTRY(ctl_ha_msg_hdr) links; 362229997Sken}; 363229997Sken 364229997Sken#define CTL_HA_MAX_SG_ENTRIES 16 365229997Sken 366229997Sken/* 367229997Sken * Used for CTL_MSG_APS_LOCK. 368229997Sken */ 369229997Skenstruct ctl_ha_msg_aps { 370229997Sken struct ctl_ha_msg_hdr hdr; 371229997Sken uint8_t lock_flag; 372229997Sken}; 373229997Sken 374229997Sken/* 375229997Sken * Used for CTL_MSG_PERS_ACTION. 376229997Sken */ 377229997Skenstruct ctl_ha_msg_pr { 378229997Sken struct ctl_ha_msg_hdr hdr; 379229997Sken struct ctl_pr_info pr_info; 380229997Sken}; 381229997Sken 382229997Sken/* 383229997Sken * The S/G handling here is a little different than the standard ctl_scsiio 384229997Sken * structure, because we can't pass data by reference in between controllers. 385229997Sken * The S/G list in the ctl_scsiio struct is normally passed in the 386229997Sken * kern_data_ptr field. So kern_sg_entries here will always be non-zero, 387229997Sken * even if there is only one entry. 388229997Sken * 389229997Sken * Used for CTL_MSG_DATAMOVE. 390229997Sken */ 391229997Skenstruct ctl_ha_msg_dt { 392229997Sken struct ctl_ha_msg_hdr hdr; 393229997Sken ctl_io_flags flags; /* Only I/O flags are used here */ 394229997Sken uint32_t sg_sequence; /* S/G portion number */ 395229997Sken uint8_t sg_last; /* last S/G batch = 1 */ 396229997Sken uint32_t sent_sg_entries; /* previous S/G count */ 397229997Sken uint32_t cur_sg_entries; /* current S/G entries */ 398229997Sken uint32_t kern_sg_entries; /* total S/G entries */ 399229997Sken uint32_t kern_data_len; /* Length of this S/G list */ 400229997Sken uint32_t kern_total_len; /* Total length of this 401229997Sken transaction */ 402229997Sken uint32_t kern_data_resid; /* Length left to transfer 403229997Sken after this*/ 404229997Sken uint32_t kern_rel_offset; /* Byte Offset of this 405229997Sken transfer */ 406229997Sken struct ctl_sg_entry sg_list[CTL_HA_MAX_SG_ENTRIES]; 407229997Sken}; 408229997Sken 409229997Sken/* 410229997Sken * Used for CTL_MSG_SERIALIZE, CTL_MSG_FINISH_IO, CTL_MSG_BAD_JUJU. 411229997Sken */ 412229997Skenstruct ctl_ha_msg_scsi { 413229997Sken struct ctl_ha_msg_hdr hdr; 414229997Sken uint8_t cdb[CTL_MAX_CDBLEN]; /* CDB */ 415229997Sken uint32_t tag_num; /* tag number */ 416229997Sken ctl_tag_type tag_type; /* simple, ordered, etc. */ 417229997Sken uint8_t scsi_status; /* SCSI status byte */ 418229997Sken struct scsi_sense_data sense_data; /* sense data */ 419229997Sken uint8_t sense_len; /* Returned sense length */ 420229997Sken uint8_t sense_residual; /* sense residual length */ 421229997Sken uint32_t residual; /* data residual length */ 422229997Sken uint32_t fetd_status; /* trans status, set by FETD, 423229997Sken 0 = good*/ 424229997Sken struct ctl_lba_len lbalen; /* used for stats */ 425229997Sken}; 426229997Sken 427229997Sken/* 428229997Sken * Used for CTL_MSG_MANAGE_TASKS. 429229997Sken */ 430229997Skenstruct ctl_ha_msg_task { 431229997Sken struct ctl_ha_msg_hdr hdr; 432229997Sken ctl_task_type task_action; /* Target Reset, Abort, etc. */ 433229997Sken uint32_t tag_num; /* tag number */ 434229997Sken ctl_tag_type tag_type; /* simple, ordered, etc. */ 435229997Sken}; 436229997Sken 437229997Skenunion ctl_ha_msg { 438229997Sken struct ctl_ha_msg_hdr hdr; 439229997Sken struct ctl_ha_msg_task task; 440229997Sken struct ctl_ha_msg_scsi scsi; 441229997Sken struct ctl_ha_msg_dt dt; 442229997Sken struct ctl_ha_msg_pr pr; 443229997Sken struct ctl_ha_msg_aps aps; 444229997Sken}; 445229997Sken 446229997Sken 447229997Skenstruct ctl_prio { 448229997Sken struct ctl_io_hdr io_hdr; 449229997Sken struct ctl_ha_msg_pr pr_msg; 450229997Sken}; 451229997Sken 452229997Sken 453229997Sken 454229997Skenunion ctl_io { 455229997Sken struct ctl_io_hdr io_hdr; /* common to all I/O types */ 456229997Sken struct ctl_scsiio scsiio; /* Normal SCSI commands */ 457229997Sken struct ctl_taskio taskio; /* SCSI task management/reset */ 458229997Sken struct ctl_prio presio; /* update per. res info on other SC */ 459229997Sken}; 460229997Sken 461229997Sken#ifdef _KERNEL 462229997Sken 463229997Skenunion ctl_io *ctl_alloc_io(void *pool_ref); 464229997Skenvoid ctl_free_io(union ctl_io *io); 465229997Skenvoid ctl_zero_io(union ctl_io *io); 466229997Skenvoid ctl_copy_io(union ctl_io *src, union ctl_io *dest); 467229997Sken 468229997Sken#endif /* _KERNEL */ 469229997Sken 470229997Sken#endif /* _CTL_IO_H_ */ 471229997Sken 472229997Sken/* 473229997Sken * vim: ts=8 474229997Sken */ 475