xref: /freebsd/sys/dev/isci/scil/sati_unmap.h (revision d2ce15bd43b3a1dcce08eecbff8d5d359946d972)
1 /*-
2  * This file is provided under a dual BSD/GPLv2 license.  When using or
3  * redistributing this file, you may do so under either license.
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7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of version 2 of the GNU General Public License as
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21  * The full GNU General Public License is included in this distribution
22  * in the file called LICENSE.GPL.
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53  */
54 #ifndef _SATI_UNMAP_H_
55 #define _SATI_UNMAP_H_
56 
57 /**
58  * @file
59  * @brief This file contains the method implementations required to
60  *        translate the SCSI reassign blocks command.
61  */
62 
63 #if !defined(DISABLE_SATI_UNMAP)
64 
65 #include <dev/isci/scil/sati_types.h>
66 #include <dev/isci/scil/sati_translator_sequence.h>
67 
68 #define SATI_DSM_MAX_SECTOR_COUNT                     0xFFFF
69 #define SATI_DSM_MAX_SECTOR_ADDRESS                   0xFFFFFFFFFFFF
70 #define SATI_DSM_MAX_BUFFER_SIZE                      4096
71 
72 #define SATI_UNMAP_SIZEOF_SCSI_UNMAP_BLOCK_DESCRIPTOR 16
73 #define SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST   8
74 
75 typedef struct _TRIM_PAIR
76 {
77     U64 sector_address:48;
78     U64 sector_count:16;
79 } TRIM_PAIR, *PTRIM_PAIR;
80 
81 U32 sati_unmap_calculate_dsm_blocks(
82    SATI_TRANSLATOR_SEQUENCE_T * sequence,
83    U32                          dsm_descriptor_count
84 );
85 
86 SATI_STATUS sati_unmap_construct(
87    SATI_TRANSLATOR_SEQUENCE_T * sequence,
88    void                       * scsi_io,
89    void                       * ata_io,
90    U32                          sector_count
91 );
92 
93 SATI_STATUS sati_unmap_load_next_descriptor(
94    SATI_TRANSLATOR_SEQUENCE_T * sequence,
95    void                       * scsi_io
96 );
97 
98 U32 sati_unmap_get_max_buffer_size_in_blocks(
99    SATI_TRANSLATOR_SEQUENCE_T * sequence
100 );
101 
102 SATI_STATUS sati_unmap_initial_processing(
103    SATI_TRANSLATOR_SEQUENCE_T * sequence,
104    void                       * scsi_io,
105    void                       * ata_io
106 );
107 
108 SATI_STATUS sati_unmap_process(
109    SATI_TRANSLATOR_SEQUENCE_T * sequence,
110    void                       * scsi_io,
111    void                       * ata_io
112 );
113 
114 SATI_STATUS sati_unmap_translate_command(
115    SATI_TRANSLATOR_SEQUENCE_T * sequence,
116    void                       * scsi_io,
117    void                       * ata_io
118 );
119 
120 SATI_STATUS sati_unmap_translate_response(
121    SATI_TRANSLATOR_SEQUENCE_T * sequence,
122    void                       * scsi_io,
123    void                       * ata_io
124 );
125 
126 void sati_unmap_terminate(
127    SATI_TRANSLATOR_SEQUENCE_T * sequence,
128    void                       * scsi_io,
129    void                       * ata_io
130 );
131 #else // !defined(DISABLE_SATI_UNMAP)
132 #define sati_unmap_terminate(sequence,scsi_io,ata_io)
133 #endif // !defined(DISABLE_SATI_UNMAP)
134 
135 #endif // _SATI_UNMAP_H_
136