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55 #include <sys/cdefs.h>
56 __FBSDID("$FreeBSD$");
60 * @brief This file contains the method implementations required to
61 * translate the SCSI REPORT LUNS command.
64 #if !defined(DISABLE_SATI_REPORT_LUNS)
66 #include <dev/isci/scil/sati_report_luns.h>
67 #include <dev/isci/scil/sati_callbacks.h>
68 #include <dev/isci/scil/sati_util.h>
69 #include <dev/isci/scil/intel_ata.h>
70 #include <dev/isci/scil/intel_scsi.h>
73 * @brief This method will translate the REPORT LUN SCSI command. This
74 * command is immediately completed, since there is no applicable
75 * ATA/ATAPI command. The data payload is written and SATI_COMPLETE
77 * For more information on the parameters passed to this method,
78 * please reference sati_translate_command().
80 * @return This method always indicates the translation is complete.
81 * @retval SATI_COMPLETE This value is always returned.
83 SATI_STATUS sati_report_luns_translate_command(
84 SATI_TRANSLATOR_SEQUENCE_T * sequence,
89 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
91 // Set the data length based on the allocation length field in the CDB.
92 sequence->allocation_length = (sati_get_cdb_byte(cdb, 6) << 24) |
93 (sati_get_cdb_byte(cdb, 7) << 16) |
94 (sati_get_cdb_byte(cdb, 8) << 8) |
95 (sati_get_cdb_byte(cdb, 9));
97 // The first 4 bytes indicate the length of the LUN list. Each
98 // LUN entry is 8 bytes. There is only ever LUN 0 for ATA/ATAPI
99 // devices. The value reported is: n-7, where n is the last byte
100 // offset (i.e. 15) in the REPORT LUN data.
101 sati_set_data_byte(sequence, scsi_io, 0, 0);
102 sati_set_data_byte(sequence, scsi_io, 1, 0);
103 sati_set_data_byte(sequence, scsi_io, 2, 0);
104 sati_set_data_byte(sequence, scsi_io, 3, 8);
106 // Bytes 4-7 are reserved.
107 sati_set_data_byte(sequence, scsi_io, 4, 0);
108 sati_set_data_byte(sequence, scsi_io, 5, 0);
109 sati_set_data_byte(sequence, scsi_io, 6, 0);
110 sati_set_data_byte(sequence, scsi_io, 7, 0);
112 // Add in our single LUN of zero.
113 sati_set_data_byte(sequence, scsi_io, 8, 0);
114 sati_set_data_byte(sequence, scsi_io, 9, 0);
115 sati_set_data_byte(sequence, scsi_io, 10, 0);
116 sati_set_data_byte(sequence, scsi_io, 11, 0);
117 sati_set_data_byte(sequence, scsi_io, 12, 0);
118 sati_set_data_byte(sequence, scsi_io, 13, 0);
119 sati_set_data_byte(sequence, scsi_io, 14, 0);
120 sati_set_data_byte(sequence, scsi_io, 15, 0);
122 return SATI_COMPLETE;
125 #endif // !defined(DISABLE_SATI_REPORT_LUNS)