xref: /freebsd/sys/dev/isci/scil/sati_atapi.h (revision 0957b409)
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56 #ifndef _SATI_ATAPI_H_
57 #define _SATI_ATAPI_H_
58 
59 /**
60  * @file
61  * @brief This file contains all of the interface methods, macros, structures
62  *        that can be utilized by a user to perform SCSI-to-ATA PACKET IO
63  *        Translation.
64  */
65 #include <dev/isci/scil/sati_types.h>
66 #include <dev/isci/scil/sati_translator_sequence.h>
67 
68 /**
69  * @brief This method translates the supplied SCSI command into a
70  *        corresponding ATA packet protocol command.
71  *
72  * @param[in]  sequence This parameter specifies the sequence
73  *             data associated with the translation.
74  * @param[in]  sati_device This parameter specifies the remote device
75  *             for which the translated request is destined.
76  * @param[in,out] scsi_io This parameter specifies the user's SCSI IO request
77  *                object.  SATI expects that the user can access the SCSI CDB,
78  *                response, and data from this pointer.  For example, if there
79  *                is a failure in translation resulting in sense data, then
80  *                SATI will call sati_cb_set_status() and pass the scsi_io
81  *                pointer as a parameter.
82  * @param[out] atapi_io This parameter specifies the location of the
83  *             ATA Packet FIS into which the translator can write the resultant
84  *             ATA command if translation is successful.  This parameter is
85  *             passed back to the user through the SATI_SATA_CALLBACKS when it
86  *             is necessary to write fields in the ata_io.
87  *
88  * @return Indicate if the translation was successful.
89  * @retval SATI_SUCCESS
90  * @retval SATI_FAILURE_CHECK_RESPONSE_DATA
91  */
92 SATI_STATUS sati_atapi_translate_command(
93    SATI_TRANSLATOR_SEQUENCE_T * sequence,
94    SATI_DEVICE_T              * sati_device,
95    void                       * scsi_io,
96    void                       * atapi_io
97 );
98 
99 
100 /**
101  * @brief This method translates the supplied ATA packet IO response into the
102  *        corresponding SCSI command response.
103  *
104  * @param[out]  sequence This parameter specifies the sequence
105  *             data associated with the translation and will be updated
106  *             according to the command response.
107  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
108  *             object.  SATI expects that the user can access the SCSI CDB,
109  *             response, and data from this pointer.  For example, if there
110  *             is a failure in translation resulting in sense data, then
111  *             SATI will call sati_cb_set_status() and pass the scsi_io
112  *             pointer as a parameter.
113  * @param[in] atapi_io This parameter specifies the location of the
114  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
115  *             the translator can read the received ATA status and error
116  *             fields.
117  *
118  * @return Indicate if the translation was successful.
119  * @retval SATI_SUCCESS
120  * @retval SATI_FAILURE_CHECK_RESPONSE_DATA
121  */
122 SATI_STATUS sati_atapi_translate_command_response(
123    SATI_TRANSLATOR_SEQUENCE_T * sequence,
124    void                       * scsi_io,
125    void                       * atapi_io
126 );
127 
128 
129 /**
130  * @brief This method translates the internal Request Sense command response
131  *        and set the sense data for the previous failed SCSI command.
132  *
133  * @param[out] sequence This parameter specifies the sequence
134  *             data associated with the translation and to be updated to
135  *             final state.
136  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
137  *             object.  SATI expects that the user can access the SCSI CDB,
138  *             response, and data from this pointer.  For example, if there
139  *             is a failure in translation resulting in sense data, then
140  *             SATI will call sati_cb_set_status() and pass the scsi_io
141  *             pointer as a parameter.
142  * @param[in] atapi_io This parameter specifies the location of the
143  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
144  *             the translator can read the received ATA status and error
145  *             fields.
146  *
147  * @return None.
148  */
149 void sati_atapi_translate_request_sense_response(
150    SATI_TRANSLATOR_SEQUENCE_T * sequence,
151    void                       * scsi_io,
152    void                       * atapi_io
153 );
154 
155 
156 /**
157  * @brief This method retrieve ATA packet IO actual transferred data length.
158  *
159  * @param[in]  sequence This parameter specifies the sequence
160  *             data associated with the translation.
161  * @param[out] scsi_io This parameter specifies the user's SCSI IO request
162  *             object.  SATI expects that the user can access the SCSI CDB,
163  *             response, and data from this pointer.  For example, if there
164  *             is a failure in translation resulting in sense data, then
165  *             SATI will call sati_cb_set_status() and pass the scsi_io
166  *             pointer as a parameter.
167  * @param[out] atapi_io This parameter specifies the location of the
168  *             ATAPI IO request (e.g. register FIS, PIO Setup etc.) from which
169  *             the translator can read the received ATA status and error
170  *             fields.
171  *
172  * @return Actual data transfer length.
173  */
174 U32 sati_atapi_translate_number_of_bytes_transferred(
175    SATI_TRANSLATOR_SEQUENCE_T * sequence,
176    void                       * scsi_io,
177    void                       * atapi_io
178 );
179 #endif
180