FreeBSD/Linux Kernel Cross Reference
sys/dev/hptrr/ldm.h

     /*
      * Copyright (c) HighPoint Technologies, Inc.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: releng/6.4/sys/dev/hptrr/ldm.h 174614 2007-12-15 06:03:44Z scottl $
     */
    #include <dev/hptrr/hptrr_config.h>
    /*
     * $Id: ldm.h,v 1.59 2007/04/17 07:00:06 mah Exp $
     * Copyright (C) 2004-2005 HighPoint Technologies, Inc. All rights reserved.
     */
    #ifndef _HPT_LDM_H_
    #define _HPT_LDM_H_
    
    #define VERMAGIC_LDM 57
    
    #if defined(__cplusplus)
    extern "C" {
    #endif
    
    
    #define __hpt_set_ver(x, v1, v2, v3, v4, v5) x ## _R_ ## v1 ## _ ## v2 ## _ ## v3 ## _ ## v4 ## _ ## v5
    #define _hpt_set_ver(x, v1, v2, v3, v4, v5)  __hpt_set_ver(x, v1, v2, v3, v4, v5)
    #define hpt_set_ver(x)               _hpt_set_ver(x, VERMAGIC_OSM, VERMAGIC_HIM, VERMAGIC_LDM, VERMAGIC_ARRAY, MAX_MEMBERS)
    
    #define ldm_register_him        hpt_set_ver(ldm_register_him)
    #define ldm_register_vdev_class hpt_set_ver(ldm_register_vdev_class)
    #define ldm_alloc_cmds          hpt_set_ver(ldm_alloc_cmds)
    
    
    #ifndef HPT_INTERFACE_VERSION
    #define HPT_INTERFACE_VERSION 0x02000001
    #endif
    
    #define MAX_PARTITIONS_PER_DISK 4
    #if defined(__MAX_PARTITIONS_PER_DISK) && MAX_PARTITIONS_PER_DISK > __MAX_PARTITIONS_PER_DISK
    #error "Please redefine MAX_PARTITIONS_PER_DISK!!!"
    #endif
    
    #define MAX(a,b) (((a)>(b))?(a):(b))
    #define MIN(a,b) (((a)<(b))?(a):(b))
    
    
    struct freelist {
            int dma;
            HPT_UINT alignment;
            HPT_UINT count;
            HPT_UINT size;
            void * head;
            struct freelist *next;
    #ifdef DBG
            char *tag;
            HPT_UINT reserved_count; 
            #define freelist_debug_tag(list, _tag) (list)->tag = _tag
    #else 
            #define freelist_debug_tag(list, _tag)
    #endif
    };
    
    
    void freelist_reserve(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT count);
    
    void *freelist_get(struct freelist *);
    void freelist_put(struct freelist *, void *p);
    
    void freelist_reserve_dma(struct freelist *list, void *osext, HPT_UINT size, HPT_UINT alignment, HPT_UINT count);
    void *freelist_get_dma(struct freelist *, BUS_ADDRESS *busaddr);
    void freelist_put_dma(struct freelist *, void *p, BUS_ADDRESS busaddr);
    
    
    #define freelist_reserve_with_tag(list, osext, size, count) \
            do {\
                    freelist_debug_tag(list, #list  " at " __FILE__);\
                    freelist_reserve(list, osext, size, count);\
            }while(0)
    
    #define freelist_reserve_dma_with_tag(list, osext, size, alignment, count) \
            do {\
                   freelist_debug_tag(list, #list " at " __FILE__);\
                   freelist_reserve_dma(list, osext, size, alignment, count);\
           }while(0)
   
   struct lock_request {
           HPT_U64 start, end;
           struct lock_request *next;
           struct list_head waiters; /* blocked commands */
           struct tq_item callback;
   };
   
   #define INIT_LOCK_REQUEST(req, _start, _end, _cb, _arg) \
           do {\
                   (req)->next = 0;\
                   (req)->start = _start;\
                   (req)->end = _end;\
                   INIT_TQ_ITEM(&(req)->callback, _cb, _arg);\
                   INIT_LIST_HEAD(&(req)->waiters);\
           } while (0)
   
   struct task_queue {
           struct tq_item *head, *tail;
   };
   
   #define TQ_EMPTY(tq) ((tq)->head==0)
   
   struct dmapool_order {
           HPT_UINT npages;
           struct tq_item wakeup_fn;
           struct dmapool_order *next;
   };
   
   struct dmapool_client {
           void * handle;
           HPT_UINT (*shrink)(void *handle, HPT_UINT npages);
           void (*resume)(void *handle);
           struct dmapool_client *next;
   };
   
   typedef struct _VBUS * PVBUS;
   typedef struct _VDEV * PVDEV;
   
   
   void dmapool_register_client(PVBUS vbus, struct dmapool_client *client);
   
   
   void dmapool_active(PVBUS vbus);
   
   /* return 0 if the request is immediately satisfied, non-zero otherwise. */
   int dmapool_make_order(PVBUS vbus, struct dmapool_order *order);
   
   
   void *dmapool_get_page(PVBUS vbus, BUS_ADDRESS *busaddr);
   void *dmapool_get_page_at(PVBUS vbus, void *p, BUS_ADDRESS *busaddr);
   void dmapool_put_page(PVBUS vbus, void *p, BUS_ADDRESS busaddr);
   void dmapool_init(PVBUS vbus);
   HPT_UINT dmapool_max_class_pages(PVBUS vbus);
   
   
   struct timer_call {
           HPT_U32 interval; /*microseconds*/
           HPT_TIME expire_time; /*microseconds*/
           void (*proc)(void * arg);
           void * arg;
           struct timer_call ** pprev;
           struct timer_call * next;
   };
   
   #define ldm_init_timer(timer) do { (timer)->next=0; (timer)->pprev=0; } while (0)
   
   #define INIT_TIMER_CALL(timer, _interval, _proc, _arg) \
           do { \
                   HPT_ASSERT((timer)->next==0 && (timer)->pprev==0);\
                   (timer)->interval = _interval;\
                   (timer)->proc = _proc;\
                   (timer)->arg = _arg;\
           } while(0)
   
   void ldm_request_timer(PVBUS vbus, struct timer_call * tc);
   void ldm_remove_timer(PVBUS vbus, struct timer_call * tc);
   void ldm_on_timer(PVBUS vbus);
   
   
   typedef struct _LDM_ADAPTER
   {
           struct _LDM_ADAPTER *next;
           HIM  *him;
           void *him_handle;
           PVBUS vbus;
           struct freelist freelist_dev;
           struct freelist freelist_plugged_dpc;
           HPT_BOOL master;
   }
   LDM_ADAPTER, *PLDM_ADAPTER;
   
   typedef struct _IOCTL_ARG
   {
           struct list_head link;
           PVBUS vbus;
           HPT_U32 dwIoControlCode;
           HPT_U32 nInBufferSize;
           HPT_U32 nOutBufferSize;
           void *  lpInBuffer;
           void *  lpOutBuffer;
           HPT_U32 *lpBytesReturned;
           void *  ioctl_cmnd;
           void (* done)(struct _IOCTL_ARG *);
           int     result; /* HPT_IOCTL_RESULT_ */
           struct tq_item dpc;
   } IOCTL_ARG;
   
   #define HPT_IOCTL_RESULT_OK          0
   #define HPT_IOCTL_RESULT_FAILED     (-1)
   #define HPT_IOCTL_RESULT_INVALID    (-2)
   #define HPT_IOCTL_RESULT_RETRY      (-3)
   #define HPT_IOCTL_RESULT_WRONG_VBUS (-4)
   
   void ldm_ioctl( PVBUS vbus,     IOCTL_ARG *IAPnt);
   HPT_U32 ldm_get_device_id(PVDEV vd); /* for ioctl */
   void ldm_set_rebuild_priority(PVBUS vbus, int priority);
   void ldm_set_autorebuild(PVBUS vbus, int enable);
   
   #include <dev/hptrr/array.h>
   
   typedef struct hpt_raw_disk
   {
   #ifdef SUPPORT_ARRAY
           PRAW_PARTITION raw_part_list;
           HPT_RAW_LBA max_available_capacity; 
           HPT_RAW_LBA total_available_capacity;
   #endif
           HPT_RAW_LBA real_capacity;
           HPT_RAW_LBA head_position;
   
           HPT_U16 max_sectors_per_cmd;
           HPT_U8  user_select_mode;
   
           HPT_U8  uninitialized : 1;
           HPT_U8  legacy_disk : 1;
           HPT_U8  is_spare : 1;
           HPT_U8  v3_format : 1;
           HPT_U8  need_sync : 1;
           HPT_U8  temp_spare : 1;
           HPT_U8  need_check_array : 1;
           HPT_U8  df_user_mode_set: 1;
   
           HPT_U8  df_read_ahead_set: 1;
           HPT_U8  enable_read_ahead : 1;
           HPT_U8  df_write_cache_set: 1;
           HPT_U8  enable_write_cache : 1;
           HPT_U8  df_tcq_set: 1;
           HPT_U8  enable_tcq : 1;
           HPT_U8  df_ncq_set: 1;
           HPT_U8  enable_ncq : 1;
   
           HIM  *                          him;
           int                             index;
           PLDM_ADAPTER            adapter;
           void *                          phy_dev;
           PIDENTIFY_DATA2         identify_data;
           char    model[40];
   
           struct tq_item reset_dpc;
           int reset_pending;
   
           struct tq_item fail_dpc;
           int fail_pending;
   }
   HPT_RAW_DISK, *PHPT_RAW_DISK;
   
   struct vdev_class
   {
           struct vdev_class *next;
   
           HPT_U8   type;
           HPT_U8   stripped;        /* RAID0,3,5,6 */
           HPT_U8   redundancy;      /* RAID1-1, RAID3/5-1, RAID6-2 */
           HPT_U8   must_init;       /* RAID3,5,6 */
   
           HPT_UINT vbus_ext_size;
           HPT_UINT vbus_ext_offset; /* used by LDM */
           HPT_UINT dev_ext_size;
           HPT_UINT cmd_ext_size;
   
           
           void (*get_mem_info)(PVBUS vbus, void *osext, int phydev_count);
           void (*queue_cmd)(PCOMMAND cmd);
           void (*member_failed)(struct _VDEV * vd); 
   
           
           void (*initialize)(PVBUS vbus);
           void (*release)(PVBUS vbus); 
           int  (*add)(PVDEV vd); 
           void (*remove)(PVDEV vd); 
           void (*reset)(PVDEV vd); 
           void (*sync_stamp)(PVDEV vd);
   };
   
   
   #define VDEV_CLASS_CONSTRUCTOR(type, prefix) { \
           0, \
           type, \
           prefix ## _stripped, \
           prefix ## _redundancy, \
           prefix ## _must_init, \
           prefix ## _vbus_ext_size, \
           0, \
           prefix ## _dev_ext_size, \
           prefix ## _cmd_ext_size, \
           prefix ## _get_mem_info, \
           prefix ## _queue_cmd, \
           prefix ## _member_failed, \
           prefix ## _initialize, \
           prefix ## _release, \
           prefix ## _add, \
           prefix ## _remove, \
           prefix ## _reset, \
           prefix ## _sync_stamp, \
   }
   
   #define VD_RAW       1
   #define VD_PARTITION 4
   
   #define mIsArray(vdev_type) ((vdev_type)>VD_PARTITION)
   
   #define VD_RAID0     5
   #define VD_RAID1     6
   #define VD_JBOD      7
   #define VD_RAID5     8
   #define VD_RAID6     9
   
   #define MAX_VD_TYPE_ID  9
   
   struct vdev_class *ldm_find_vdev_class(HPT_U8 type);
   
   typedef struct _VDEV {
           PVBUS vbus;
           PVDEV parent;
           void * ext;
           HPT_U64 capacity;
           int     target_id;
           HPT_UINT cmds_per_request;
   
           union {
   #ifdef SUPPORT_ARRAY
                   HPT_ARRAY array;
                   HPT_PARTITION partition;
   #endif
                   HPT_RAW_DISK raw;
           } u;
   
           HPT_U8 vf_online : 1;
           HPT_U8 vf_bootmark : 1;
           HPT_U8 vf_bootable : 1;
           HPT_U8 vf_resetting: 1;
           HPT_U8 vf_quiesced: 1;
   
           HPT_U8 cache_policy; /* see CACHE_POLICY_* */
   
           HPT_UINT cq_len;
           HPT_UINT cmds_sent;
           HPT_UINT max_queue_depth;
   
           struct list_head link;
           struct vdev_class *Class;
   
           struct list_head cq_wait_send;
           struct list_head cq_sent;
   
           int cq_priority;
           struct list_head cq_wait_lock;
           struct lock_request *locks_granted;
           struct lock_request *locks_wait;
           HPT_U32 ioctl_id; 
           void * cc_ext;
   }
   VDEV;
   
   #define CACHE_POLICY_NONE 0
   #define CACHE_POLICY_WRITE_THROUGH 1
   #define CACHE_POLICY_WRITE_BACK 2
   
   
   extern HIM *him_list;
   
   
   void ldm_register_him(PHIM him);
   
   
   void ldm_register_vdev_class(struct vdev_class *Class);
   
   
   HPT_BOOL ldm_register_adapter(PLDM_ADAPTER adapter);
   
   
   int init_config(void);
   
   HPT_UINT ldm_get_vbus_size(void);
   
   
   void ldm_create_vbus(PVBUS vbus, void *osext);
   
   
   void ldm_get_mem_info(PVBUS vbus, void *osext);
   
   
   void *ldm_get_vbus_ext(PVBUS vbus, struct vdev_class *Class);
   
   
   PVBUS ldm_get_next_vbus(PVBUS vbus, void **posext);
   
   #define ldm_for_each_vbus(vbus, vbus_ext) \
           for (vbus = ldm_get_next_vbus(0, (void **)(void *)&vbus_ext); vbus; \
                   vbus = ldm_get_next_vbus(vbus, (void **)(void *)&vbus_ext))
   
   
   void ldm_initialize_vbus_async(PVBUS vbus, PLDM_ADAPTER master_adapter, void (*done)(void *osext));
   
   /* ldm_initialize_vbus is deprecated since it will hold the CPU too long. */
   #define ldm_initialize_vbus(vbus, adapter) ldm_initialize_vbus_async(vbus, adapter, 0)
   
   
   void ldm_release_vbus(PVBUS vbus);
   
   PVDEV ldm_create_vdev(PVBUS vbus, HPT_U8 type);
   void ldm_release_vdev(PVDEV vd);
   
   PVDEV ldm_find_target(PVBUS vbus, int id);
   PVDEV ldm_find_stamp(PVBUS vbus, HPT_U32 stamp, int seq);
   
   
   PCOMMAND ldm_alloc_cmds(PVBUS vbus, HPT_UINT cnt);
   void ldm_free_cmds(PCOMMAND cmd);
   
   HPT_UINT ldm_get_cmd_size(void);
   PCOMMAND ldm_alloc_cmds_from_list(PVBUS vbus, struct freelist *list, HPT_UINT cnt);
   void ldm_free_cmds_to_list(struct freelist *list, PCOMMAND cmd);
   
   
   PCOMMAND __ldm_alloc_cmd(struct freelist *list);
   
   #ifdef OS_SUPPORT_TASK
   #define CMD_SET_PRIORITY(cmd, pri) cmd->priority = (pri)
   #else 
   #define CMD_SET_PRIORITY(cmd, pri)
   #endif
   
   #define CMD_GROUP_GET(grp, cmd) \
           do {\
                   grp->grplist->count++;\
                   cmd = __ldm_alloc_cmd(grp->grplist);\
                   cmd->vbus = grp->vbus;\
                   cmd->grplist = grp->grplist;\
                   CMD_SET_PRIORITY(cmd, grp->priority);\
           } while(0)
   
   #define CMD_GROUP_PUT(grp, cmd) \
           do {\
                   freelist_put(grp->grplist, cmd);\
                   grp->grplist->count--;\
           } while (0)
   
   
   void ldm_queue_cmd(PCOMMAND cmd);
   void vdev_queue_cmd(PCOMMAND cmd);
   void ldm_finish_cmd(PCOMMAND cmd);
   
   
   int  ldm_acquire_lock(PVDEV vd, struct lock_request *req);
   void ldm_release_lock(PVDEV vd, struct lock_request *req);
   
   void ldm_queue_task(struct task_queue *tq, struct tq_item *t);
   void ldm_queue_vbus_dpc(PVBUS vbus, struct tq_item *t);
   
   HPT_BOOL ldm_intr(PVBUS vbus);
   void ldm_run(PVBUS vbus);
   int ldm_idle(PVBUS vbus);
   
   
   int ldm_reset_vbus(PVBUS vbus);
   
   
   void ldm_suspend(PVBUS vbus);
   void ldm_resume(PVBUS vbus);
   void ldm_shutdown(PVBUS vbus);/*shutdown all the controllers*/
   
   
   #define HIM_EVENT_DEVICE_REMOVED 1
   #define HIM_EVENT_DEVICE_PLUGGED 2
   #define HIM_EVENT_DEVICE_ERROR   3
   #define HIM_EVENT_RESET_REQUIRED 4
   #define HIM_EVENT_QUIESCE_DEVICE 5
   #define HIM_EVENT_UNQUIESCE_DEVICE 6
   #define HIM_EVENT_CONFIG_CHANGED 7
   
   void ldm_event_notify(HPT_U32 event, void *arg1, void *arg2);
   
   void log_sector_repair(PVDEV vd, int success, HPT_LBA lba, HPT_U16 nsectors);
   
   void ldm_register_device(PVDEV vd);
   void ldm_unregister_device(PVDEV vd);
   
   PVBUS him_handle_to_vbus(void * him_handle);
   
   #if defined(__cplusplus)
   }
   #endif
   #endif

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