The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/hptrr/ldm.h

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    1 /*
    2  * Copyright (c) HighPoint Technologies, Inc.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/11.2/sys/dev/hptrr/ldm.h 331722 2018-03-29 02:50:57Z eadler $
   27  */
   28 #include <dev/hptrr/hptrr_config.h>
   29 /*
   30  * $Id: ldm.h,v 1.69 2007/11/22 07:31:55 gmm Exp $
   31  * Copyright (C) 2004-2005 HighPoint Technologies, Inc. All rights reserved.
   32  */
   33 #ifndef _HPT_LDM_H_
   34 #define _HPT_LDM_H_
   35 
   36 #define VERMAGIC_LDM 69
   37 
   38 #if defined(__cplusplus)
   39 extern "C" {
   40 #endif
   41 
   42 
   43 #define __hpt_set_ver(x, v1, v2, v3, v4, v5) x ## _R_ ## v1 ## _ ## v2 ## _ ## v3 ## _ ## v4 ## _ ## v5
   44 #define _hpt_set_ver(x, v1, v2, v3, v4, v5)  __hpt_set_ver(x, v1, v2, v3, v4, v5)
   45 #define hpt_set_ver(x)               _hpt_set_ver(x, VERMAGIC_OSM, VERMAGIC_HIM, VERMAGIC_LDM, VERMAGIC_ARRAY, MAX_MEMBERS)
   46 
   47 #define ldm_register_him        hpt_set_ver(ldm_register_him)
   48 #define ldm_register_vdev_class hpt_set_ver(ldm_register_vdev_class)
   49 #define ldm_alloc_cmds          hpt_set_ver(ldm_alloc_cmds)
   50 
   51 
   52 #ifndef HPT_INTERFACE_VERSION
   53 #define HPT_INTERFACE_VERSION 0x02000001
   54 #endif
   55 
   56 #define MAX_PARTITIONS_PER_DISK 4
   57 #if defined(__MAX_PARTITIONS_PER_DISK) && MAX_PARTITIONS_PER_DISK > __MAX_PARTITIONS_PER_DISK
   58 #error "Please redefine MAX_PARTITIONS_PER_DISK!!!"
   59 #endif
   60 
   61 typedef char check_HPT_TIME_is_unsigned[ (HPT_TIME)(-1) > 0 ? 1 : -1 ];
   62 
   63 #define hpt_time_after_eq(a, b) ((long)(a) - (long)(b) >= 0)
   64 #define hpt_time_after(a, b) ((long)(a) - (long)(b) > 0)
   65 
   66 
   67 
   68 struct freelist {
   69         int dma;
   70         HPT_UINT alignment;
   71         HPT_UINT count;
   72         HPT_UINT size;
   73         void * head;
   74         struct freelist *next;
   75 #if DBG
   76         char *tag;
   77         HPT_UINT reserved_count; 
   78         #define freelist_debug_tag(list, _tag) (list)->tag = _tag
   79 #else 
   80         #define freelist_debug_tag(list, _tag)
   81 #endif
   82 };
   83 
   84 
   85 void freelist_reserve(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT count);
   86 
   87 void *freelist_get(struct freelist *);
   88 void freelist_put(struct freelist *, void *p);
   89 
   90 void freelist_reserve_dma(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT alignment, HPT_UINT count);
   91 void *freelist_get_dma(struct freelist *, BUS_ADDRESS *busaddr);
   92 void freelist_put_dma(struct freelist *, void *p, BUS_ADDRESS busaddr);
   93 
   94 
   95 #define freelist_reserve_with_tag(list, osext, size, count) \
   96         do {\
   97                 freelist_debug_tag(list, #list  " at " __FILE__);\
   98                 freelist_reserve(list, osext, size, count);\
   99         }while(0)
  100 
  101 #define freelist_reserve_dma_with_tag(list, osext, size, alignment, count) \
  102         do {\
  103                 freelist_debug_tag(list, #list " at " __FILE__);\
  104                 freelist_reserve_dma(list, osext, size, alignment, count);\
  105         }while(0)
  106 
  107 struct lock_request {
  108         HPT_U64 start, end;
  109         struct lock_request *next;
  110         struct list_head waiters; /* blocked commands */
  111         struct tq_item callback;
  112         int lock_cc;
  113 };
  114 
  115 #define INIT_LOCK_REQUEST(req, _start, _end, _cb, _arg, _cc) \
  116         do {\
  117                 (req)->next = 0;\
  118                 (req)->start = _start;\
  119                 (req)->end = _end;\
  120                 INIT_TQ_ITEM(&(req)->callback, _cb, _arg);\
  121                 INIT_LIST_HEAD(&(req)->waiters);\
  122                 (req)->lock_cc = _cc;\
  123         } while (0)
  124 
  125 struct task_queue {
  126         struct tq_item *head, *tail;
  127 };
  128 
  129 #define TQ_EMPTY(tq) ((tq)->head==0)
  130 
  131 struct dmapool_order {
  132         HPT_UINT npages;
  133         struct tq_item wakeup_fn;
  134         struct dmapool_order *next;
  135 };
  136 
  137 struct dmapool_client {
  138         void * handle;
  139         HPT_UINT (*shrink)(void *handle, HPT_UINT npages);
  140         int (*resume)(void *handle);
  141         struct dmapool_client *next;
  142 };
  143 
  144 typedef struct _VBUS * PVBUS;
  145 typedef struct _VDEV * PVDEV;
  146 
  147 
  148 void dmapool_register_client(PVBUS vbus, struct dmapool_client *client);
  149 
  150 
  151 void dmapool_active(PVBUS vbus);
  152 
  153 /* return 0 if the request is immediately satisfied, non-zero otherwise. */
  154 int dmapool_make_order(PVBUS vbus, struct dmapool_order *order);
  155 
  156 
  157 void *dmapool_get_page(PVBUS vbus, BUS_ADDRESS *busaddr);
  158 void *dmapool_get_page_at(PVBUS vbus, void *p, BUS_ADDRESS *busaddr);
  159 void dmapool_put_page(PVBUS vbus, void *p, BUS_ADDRESS busaddr);
  160 void dmapool_init(PVBUS vbus);
  161 HPT_UINT dmapool_max_class_pages(PVBUS vbus);
  162 
  163 
  164 struct timer_call {
  165         HPT_U32 interval; /*microseconds*/
  166         HPT_TIME expire_time; /*microseconds*/
  167         void (*proc)(void * arg);
  168         void * arg;
  169         struct timer_call ** pprev;
  170         struct timer_call * next;
  171 };
  172 
  173 #define ldm_init_timer(timer) do { (timer)->next=0; (timer)->pprev=0; } while (0)
  174 
  175 #define INIT_TIMER_CALL(timer, _interval, _proc, _arg) \
  176         do { \
  177                 HPT_ASSERT((timer)->next==0 && (timer)->pprev==0);\
  178                 (timer)->interval = _interval;\
  179                 (timer)->proc = _proc;\
  180                 (timer)->arg = _arg;\
  181         } while(0)
  182 
  183 void ldm_request_timer(PVBUS vbus, struct timer_call * tc);
  184 void ldm_remove_timer(PVBUS vbus, struct timer_call * tc);
  185 void ldm_on_timer(PVBUS vbus);
  186 
  187 
  188 typedef struct _LDM_ADAPTER
  189 {
  190         struct _LDM_ADAPTER *next;
  191         HIM  *him;
  192         void *him_handle;
  193         PVBUS vbus;
  194         struct freelist freelist_dev;
  195         struct freelist freelist_plugged_dpc;
  196         HPT_BOOL master;
  197 }
  198 LDM_ADAPTER, *PLDM_ADAPTER;
  199 
  200 typedef struct _IOCTL_ARG
  201 {
  202         struct list_head link;
  203         PVBUS vbus;
  204         HPT_U32 dwIoControlCode;
  205         HPT_U32 nInBufferSize;
  206         HPT_U32 nOutBufferSize;
  207         void *  lpInBuffer;
  208         void *  lpOutBuffer;
  209         HPT_U32 *lpBytesReturned;
  210         void *  ioctl_cmnd;
  211         void (* done)(struct _IOCTL_ARG *);
  212         int     result; /* HPT_IOCTL_RESULT_ */
  213         struct tq_item dpc;
  214 } IOCTL_ARG;
  215 
  216 #define HPT_IOCTL_RESULT_OK          0
  217 #define HPT_IOCTL_RESULT_FAILED     (-1)
  218 #define HPT_IOCTL_RESULT_INVALID    (-2)
  219 #define HPT_IOCTL_RESULT_RETRY      (-3)
  220 #define HPT_IOCTL_RESULT_WRONG_VBUS (-4)
  221 
  222 void ldm_ioctl( PVBUS vbus,     IOCTL_ARG *IAPnt);
  223 HPT_U32 ldm_get_device_id(PVDEV vd); /* for ioctl */
  224 void ldm_set_rebuild_priority(PVBUS vbus, int priority);
  225 void ldm_set_autorebuild(PVBUS vbus, int enable);
  226 void ldm_set_spindown_disks_timeout(PVBUS vbus, HPT_U8 timeout);
  227 
  228 #ifndef __HPT_RAW_LBA
  229 #define __HPT_RAW_LBA HPT_RAW_LBA
  230 #endif
  231 
  232 #include <dev/hptrr/array.h>
  233 
  234 typedef struct hpt_raw_disk
  235 {
  236 #ifdef SUPPORT_ARRAY
  237         PRAW_PARTITION raw_part_list;
  238         __HPT_RAW_LBA max_available_capacity; 
  239         __HPT_RAW_LBA total_available_capacity;
  240 #endif
  241         __HPT_RAW_LBA real_capacity;
  242         __HPT_RAW_LBA head_position;
  243 
  244         HPT_U16 max_sectors_per_cmd;
  245         HPT_U8  max_queue_depth;
  246         HPT_U8  user_select_mode;
  247 
  248         HPT_UINT  uninitialized : 1;
  249         HPT_UINT  legacy_disk : 1;
  250         HPT_UINT  is_spare : 1;
  251         HPT_UINT  v3_format : 1;
  252         HPT_UINT  need_sync : 1;
  253         HPT_UINT  temp_spare : 1;
  254         HPT_UINT  need_check_array : 1;
  255         HPT_UINT  df_user_mode_set: 1;
  256 
  257         HPT_UINT  df_read_ahead_set: 1;
  258         HPT_UINT  enable_read_ahead : 1;
  259         HPT_UINT  df_write_cache_set: 1;
  260         HPT_UINT  enable_write_cache : 1;
  261         HPT_UINT  df_tcq_set: 1;
  262         HPT_UINT  enable_tcq : 1;
  263         HPT_UINT  df_ncq_set: 1;
  264         HPT_UINT  enable_ncq : 1;
  265 
  266         HIM  *                          him;
  267         int                             index;
  268         PLDM_ADAPTER            adapter;
  269         void *                          phy_dev;
  270         PIDENTIFY_DATA2         identify_data;
  271         char    model[40];
  272 
  273         struct tq_item reset_dpc;
  274         int reset_pending;
  275 
  276         struct tq_item fail_dpc;
  277         int fail_pending;
  278 }
  279 HPT_RAW_DISK, *PHPT_RAW_DISK;
  280 
  281 struct vdev_class
  282 {
  283         struct vdev_class *next;
  284 
  285         HPT_U8   __type;
  286         HPT_U8   stripped;        /* RAID0,3,5,6 */
  287         HPT_U8   redundancy;      /* RAID1-1, RAID3/5-1, RAID6-2 */
  288         HPT_U8   must_init;       /* RAID3,5,6 */
  289         HPT_U8   docache;
  290 
  291         HPT_UINT vbus_ext_size;
  292         HPT_UINT vbus_ext_offset; /* used by LDM */
  293         HPT_UINT dev_ext_size;
  294         HPT_UINT cmd_ext_size;
  295 
  296         
  297         void (*get_mem_info)(PVBUS vbus, void *osext, int phydev_count);
  298         void (*queue_cmd)(PCOMMAND cmd);
  299         void (*member_failed)(struct _VDEV * vd); 
  300 
  301         
  302         void (*initialize)(PVBUS vbus);
  303         void (*release)(PVBUS vbus); 
  304         int  (*add)(PVDEV vd); 
  305         void (*remove)(PVDEV vd); 
  306         void (*reset)(PVDEV vd); 
  307         void (*sync_stamp)(PVDEV vd);
  308         int  (*support_type)(int type);
  309 };
  310 
  311 
  312 #define VDEV_CLASS_CONSTRUCTOR(type, prefix) { \
  313         0, \
  314         type, \
  315         prefix ## _stripped, \
  316         prefix ## _redundancy, \
  317         prefix ## _must_init, \
  318         0, \
  319         prefix ## _vbus_ext_size, \
  320         0, \
  321         prefix ## _dev_ext_size, \
  322         prefix ## _cmd_ext_size, \
  323         prefix ## _get_mem_info, \
  324         prefix ## _queue_cmd, \
  325         prefix ## _member_failed, \
  326         prefix ## _initialize, \
  327         prefix ## _release, \
  328         prefix ## _add, \
  329         prefix ## _remove, \
  330         prefix ## _reset, \
  331         prefix ## _sync_stamp, \
  332         0 \
  333 }
  334 
  335 #define VD_RAW       1
  336 #define VD_PARTITION 4
  337 
  338 #define mIsArray(vdev_type) ((vdev_type)>VD_PARTITION)
  339 
  340 #define VD_RAID0     5
  341 #define VD_RAID1     6
  342 #define VD_JBOD      7
  343 #define VD_RAID5     8
  344 #define VD_RAID6     9
  345 #define VD_RAID3     10
  346 #define VD_RAID4     11
  347 #define VD_RAID1E    12
  348 
  349 #define MAX_VD_TYPE_ID  12
  350 
  351 struct vdev_class *ldm_find_vdev_class(HPT_U8 type);
  352 
  353 typedef struct _VDEV {
  354         PVBUS vbus;
  355         struct vdev_class *Class;
  356         HPT_U8 type;
  357         PVDEV parent;
  358         void * ext;
  359         HPT_U64 capacity;
  360         int     target_id;
  361         HPT_UINT cmds_per_request;
  362 
  363         union {
  364 #ifdef SUPPORT_ARRAY
  365                 HPT_ARRAY array;
  366                 HPT_PARTITION partition;
  367 #endif
  368                 HPT_RAW_DISK raw;
  369         } u;
  370 
  371         HPT_U8 vf_online : 1;
  372         HPT_U8 vf_bootmark : 1;
  373         HPT_U8 vf_bootable : 1;
  374         HPT_U8 vf_resetting: 1;
  375         HPT_U8 vf_quiesced: 1;
  376         HPT_U8 vf_clslock: 1;
  377 
  378         HPT_U8 cache_policy; /* see CACHE_POLICY_* */
  379 
  380         HPT_UINT cq_len;
  381         HPT_UINT cmds_sent;
  382 
  383         struct list_head link;
  384         struct list_head cq_wait_send;
  385         struct list_head cq_sent;
  386 
  387         int cq_priority;
  388         struct list_head cq_wait_lock;
  389         struct lock_request *locks_granted;
  390         struct lock_request *locks_wait;
  391         HPT_U32 ioctl_id; 
  392         void * cc_ext;
  393 }
  394 VDEV;
  395 
  396 #define CACHE_POLICY_NONE 0
  397 #define CACHE_POLICY_WRITE_THROUGH 1
  398 #define CACHE_POLICY_WRITE_BACK 2
  399 
  400 
  401 extern HIM *him_list;
  402 
  403 
  404 void ldm_register_him(PHIM him);
  405 
  406 
  407 void ldm_register_vdev_class(struct vdev_class *Class);
  408 
  409 
  410 HPT_BOOL ldm_register_adapter(PLDM_ADAPTER adapter);
  411 
  412 
  413 int init_config(void);
  414 
  415 HPT_UINT ldm_get_vbus_size(void);
  416 
  417 
  418 void ldm_create_vbus(PVBUS vbus, void *osext);
  419 
  420 
  421 void ldm_get_mem_info(PVBUS vbus, void *osext);
  422 
  423 
  424 void *ldm_get_vbus_ext(PVBUS vbus, struct vdev_class *Class);
  425 
  426 
  427 PVBUS ldm_get_next_vbus(PVBUS vbus, void **posext);
  428 
  429 #define ldm_for_each_vbus(vbus, vbus_ext) \
  430         for (vbus = ldm_get_next_vbus(0, (void **)(void *)&vbus_ext); vbus; \
  431                 vbus = ldm_get_next_vbus(vbus, (void **)(void *)&vbus_ext))
  432 
  433 
  434 void ldm_initialize_vbus_async(PVBUS vbus, PLDM_ADAPTER master_adapter, void (*done)(void *osext));
  435 
  436 /* ldm_initialize_vbus is deprecated since it will hold the CPU too long. */
  437 #define ldm_initialize_vbus(vbus, adapter) ldm_initialize_vbus_async(vbus, adapter, 0)
  438 
  439 
  440 void ldm_release_vbus(PVBUS vbus);
  441 
  442 PVDEV ldm_create_vdev(PVBUS vbus, HPT_U8 type);
  443 void ldm_release_vdev(PVDEV vd);
  444 
  445 PVDEV ldm_find_target(PVBUS vbus, int id);
  446 PVDEV ldm_find_stamp(PVBUS vbus, HPT_U32 stamp, int seq);
  447 
  448 
  449 PCOMMAND ldm_alloc_cmds(PVBUS vbus, HPT_UINT cnt);
  450 void ldm_free_cmds(PCOMMAND cmd);
  451 
  452 HPT_UINT ldm_get_cmd_size(void);
  453 PCOMMAND ldm_alloc_cmds_from_list(PVBUS vbus, struct freelist *list, HPT_UINT cnt);
  454 void ldm_free_cmds_to_list(struct freelist *list, PCOMMAND cmd);
  455 
  456 
  457 PCOMMAND __ldm_alloc_cmd(struct freelist *list);
  458 
  459 #ifdef OS_SUPPORT_TASK
  460 #define CMD_SET_PRIORITY(cmd, pri) cmd->priority = (pri)
  461 #else 
  462 #define CMD_SET_PRIORITY(cmd, pri)
  463 #endif
  464 
  465 
  466 #define CMD_GROUP_GET(grp, cmd) \
  467         do {\
  468                 grp->grplist->count++;\
  469                 cmd = __ldm_alloc_cmd(grp->grplist);\
  470                 cmd->vbus = grp->vbus;\
  471                 cmd->grplist = grp->grplist;\
  472                 CMD_SET_PRIORITY(cmd, grp->priority);\
  473         } while(0)
  474 
  475 #define CMD_GROUP_PUT(grp, cmd) \
  476         do {\
  477                 freelist_put(grp->grplist, cmd);\
  478                 grp->grplist->count--;\
  479         } while (0)
  480 
  481 
  482 
  483 
  484 void ldm_queue_cmd(PCOMMAND cmd);
  485 void vdev_queue_cmd(PCOMMAND cmd);
  486 void ldm_finish_cmd(PCOMMAND cmd);
  487 
  488 
  489 int  ldm_acquire_lock(PVDEV vd, struct lock_request *req);
  490 void ldm_release_lock(PVDEV vd, struct lock_request *req);
  491 
  492 void ldm_queue_task(struct task_queue *tq, struct tq_item *t);
  493 void ldm_queue_vbus_dpc(PVBUS vbus, struct tq_item *t);
  494 
  495 HPT_BOOL ldm_intr(PVBUS vbus);
  496 void ldm_run(PVBUS vbus);
  497 int ldm_idle(PVBUS vbus);
  498 
  499 
  500 int ldm_reset_vbus(PVBUS vbus);
  501 
  502 
  503 void ldm_suspend(PVBUS vbus);
  504 void ldm_resume(PVBUS vbus);
  505 void ldm_shutdown(PVBUS vbus);/*shutdown all the controllers*/
  506 
  507 
  508 #define HIM_EVENT_DEVICE_REMOVED 1
  509 #define HIM_EVENT_DEVICE_PLUGGED 2
  510 #define HIM_EVENT_DEVICE_ERROR   3
  511 #define HIM_EVENT_RESET_REQUIRED 4
  512 #define HIM_EVENT_QUIESCE_DEVICE 5
  513 #define HIM_EVENT_UNQUIESCE_DEVICE 6
  514 #define HIM_EVENT_CONFIG_CHANGED 7
  515 
  516 void ldm_event_notify(HPT_U32 event, void *arg1, void *arg2);
  517 
  518 void log_sector_repair(PVDEV vd, int success, HPT_LBA lba, HPT_U16 nsectors);
  519 
  520 void ldm_register_device(PVDEV vd);
  521 void ldm_unregister_device(PVDEV vd);
  522 
  523 PVBUS him_handle_to_vbus(void * him_handle);
  524 void ldm_ide_fixstring (HPT_U8 *s, const int bytecount);
  525 #if defined(__cplusplus)
  526 }
  527 #endif
  528 #endif

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