xref: /freebsd/sys/dev/isci/scil/sati_atapi.h (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
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54 #ifndef _SATI_ATAPI_H_
55 #define _SATI_ATAPI_H_
56 
57 /**
58  * @file
59  * @brief This file contains all of the interface methods, macros, structures
60  *        that can be utilized by a user to perform SCSI-to-ATA PACKET IO
61  *        Translation.
62  */
63 #include <dev/isci/scil/sati_types.h>
64 #include <dev/isci/scil/sati_translator_sequence.h>
65 
66 /**
67  * @brief This method translates the supplied SCSI command into a
68  *        corresponding ATA packet protocol command.
69  *
70  * @param[in]  sequence This parameter specifies the sequence
71  *             data associated with the translation.
72  * @param[in]  sati_device This parameter specifies the remote device
73  *             for which the translated request is destined.
74  * @param[in,out] scsi_io This parameter specifies the user's SCSI IO request
75  *                object.  SATI expects that the user can access the SCSI CDB,
76  *                response, and data from this pointer.  For example, if there
77  *                is a failure in translation resulting in sense data, then
78  *                SATI will call sati_cb_set_status() and pass the scsi_io
79  *                pointer as a parameter.
80  * @param[out] atapi_io This parameter specifies the location of the
81  *             ATA Packet FIS into which the translator can write the resultant
82  *             ATA command if translation is successful.  This parameter is
83  *             passed back to the user through the SATI_SATA_CALLBACKS when it
84  *             is necessary to write fields in the ata_io.
85  *
86  * @return Indicate if the translation was successful.
87  * @retval SATI_SUCCESS
88  * @retval SATI_FAILURE_CHECK_RESPONSE_DATA
89  */
90 SATI_STATUS sati_atapi_translate_command(
91    SATI_TRANSLATOR_SEQUENCE_T * sequence,
92    SATI_DEVICE_T              * sati_device,
93    void                       * scsi_io,
94    void                       * atapi_io
95 );
96 
97 
98 /**
99  * @brief This method translates the supplied ATA packet IO response into the
100  *        corresponding SCSI command response.
101  *
102  * @param[out]  sequence This parameter specifies the sequence
103  *             data associated with the translation and will be updated
104  *             according to the command response.
105  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
106  *             object.  SATI expects that the user can access the SCSI CDB,
107  *             response, and data from this pointer.  For example, if there
108  *             is a failure in translation resulting in sense data, then
109  *             SATI will call sati_cb_set_status() and pass the scsi_io
110  *             pointer as a parameter.
111  * @param[in] atapi_io This parameter specifies the location of the
112  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
113  *             the translator can read the received ATA status and error
114  *             fields.
115  *
116  * @return Indicate if the translation was successful.
117  * @retval SATI_SUCCESS
118  * @retval SATI_FAILURE_CHECK_RESPONSE_DATA
119  */
120 SATI_STATUS sati_atapi_translate_command_response(
121    SATI_TRANSLATOR_SEQUENCE_T * sequence,
122    void                       * scsi_io,
123    void                       * atapi_io
124 );
125 
126 
127 /**
128  * @brief This method translates the internal Request Sense command response
129  *        and set the sense data for the previous failed SCSI command.
130  *
131  * @param[out] sequence This parameter specifies the sequence
132  *             data associated with the translation and to be updated to
133  *             final state.
134  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
135  *             object.  SATI expects that the user can access the SCSI CDB,
136  *             response, and data from this pointer.  For example, if there
137  *             is a failure in translation resulting in sense data, then
138  *             SATI will call sati_cb_set_status() and pass the scsi_io
139  *             pointer as a parameter.
140  * @param[in] atapi_io This parameter specifies the location of the
141  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
142  *             the translator can read the received ATA status and error
143  *             fields.
144  *
145  * @return None.
146  */
147 void sati_atapi_translate_request_sense_response(
148    SATI_TRANSLATOR_SEQUENCE_T * sequence,
149    void                       * scsi_io,
150    void                       * atapi_io
151 );
152 
153 
154 /**
155  * @brief This method retrieve ATA packet IO actual transferred data length.
156  *
157  * @param[in]  sequence This parameter specifies the sequence
158  *             data associated with the translation.
159  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
160  *             object.  SATI expects that the user can access the SCSI CDB,
161  *             response, and data from this pointer.  For example, if there
162  *             is a failure in translation resulting in sense data, then
163  *             SATI will call sati_cb_set_status() and pass the scsi_io
164  *             pointer as a parameter.
165  * @param[out] atapi_io This parameter specifies the location of the
166  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
167  *             the translator can read the received ATA status and error
168  *             fields.
169  *
170  * @return Actual data transfer length.
171  */
172 U32 sati_atapi_translate_number_of_bytes_transferred(
173    SATI_TRANSLATOR_SEQUENCE_T * sequence,
174    void                       * scsi_io,
175    void                       * atapi_io
176 );
177 #endif
178