kernel/drivers/scsi/cpqary3/cpqary3_q_mem.h

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
  14  */
  15
  16 #ifndef _CPQARY3_Q_MEM_H
  17 #define _CPQARY3_Q_MEM_H
  18
  19 #ifdef  __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 #define CPQARY3_GET_MEM_TAG             4
  24
  25 #define CPQARY3_FREE                    0
  26 #define CPQARY3_OCCUPIED                1
  27 #define CPQARY3_SELF_OCCUPIED           2
  28 #define CPQARY3_POLL_OCCUPIED           3
  29
  30 #define CPQARY3_PHYCTGS_DONE            0x01
  31 #define CPQARY3_CMDMEM_DONE             0x02
  32 #define CPQARY3_MEMLIST_DONE            0x04
  33
  34 #define CPQARY3_SUBMITTED_Q             0x0100
  35 #define CPQARY3_APPEND_RETRIEVE         1
  36 #define CPQARY3_REMOVE_SUBMITTED        0
  37
  38 #define CPQARY3_Q_UNMASK                0x0300
  39
  40 /*
  41  * No. of Commands that would be accomodated in each Command Pool
  42  * Each command needs a physical contigous memory of 564 Bytes.
  43  * The number of blocks to be allocated would be decided at run time
  44  * depending upon the maximum outstanding commands supported by that controller.
  45  */
  46 #define NO_OF_CMDLIST_IN_A_BLK          3
  47
  48
  49 /*
  50  * This structure is meant to store the handle of the physically contiguous
  51  * memory blcoks that will be allocated during the _meminit().
  52  * The no. of blocks that will be allocated will be decide at run time
  53  * depending upon the maximum outstanding commands supported by the controller.
  54  * each block is physically contiguous & can hold 3 commands.
  55  */
  56 typedef struct cpqary3_phyctg {
  57         size_t                  real_size;
  58         ddi_dma_handle_t        cpqary3_dmahandle;
  59         ddi_acc_handle_t        cpqary3_acchandle;
  60         ddi_dma_cookie_t        cpqary3_dmacookie;
  61 } cpqary3_phyctg_t;
  62
  63 typedef struct cpqary3_command_private CMDLIST;
  64
  65 /* Linked List Structure to hold Command List Details */
  66 typedef struct cpqary3_command_private {
  67         uint8_t                         occupied;
  68         uint8_t                         cmdpvt_flag;
  69         uint32_t                        cmdlist_phyaddr;
  70         uint32_t                        cmdlist_erraddr;
  71         cpqary3_tag_t                   tag;
  72         ErrorInfo_t                     *errorinfop;
  73         CommandList_t                   *cmdlist_memaddr;
  74         struct cpqary3_command_private  *next; /* next Command Memory */
  75         struct cpqary3_command_private  *prev; /* previous Command Memory */
  76         struct cpqary3_per_controller   *ctlr; /* to its controller */
  77         struct cpqary3_pkt              *pvt_pkt; /* Driver Private Packet */
  78         struct cpqary3_driver_private   *driverdata; /* command private data */
  79         struct cpqary3_command_private  *snext; /* to maintain Submitted Q & */
  80         struct cpqary3_command_private  *sprev; /* Retrieved Q. */
  81         void                            (*complete)(CMDLIST *);
  82 } cpqary3_cmdpvt_t;
  83
  84 /* structure to maintain a linked list of the memory blocks */
  85 typedef struct physical_handle_address {
  86         cpqary3_phyctg_t                *blk_addr;
  87         struct physical_handle_address  *next;
  88 } cpqary3_phys_hdl_addr_t;
  89
  90 /* Structure to hold Memory Pool Details */
  91 typedef struct cpqary3_cmdmemlist {
  92         uint16_t                max_memcnt;
  93         cpqary3_cmdpvt_t        *pool;
  94         cpqary3_cmdpvt_t        *head;
  95         cpqary3_cmdpvt_t        *tail;
  96         cpqary3_phys_hdl_addr_t *cpqary3_phyctgp; /* list of memory blocks */
  97 } cpqary3_cmdmemlist_t;
  98
  99 #ifdef  __cplusplus
 100 }
 101 #endif
 102
 103 #endif  /* _CPQARY3_Q_MEM_H */