/**
* @brief This method will check the validity of parameter data of Read Write Error Recovery
* page and further processing the page data if necessary.
*
* @param[in] page_size This parameter specifies page size of current mode page.
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page_read_write_error_recovery(
SATI_TRANSLATOR_SEQUENCE_T* sequence,
void * scsi_io,
U32 page_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
U8 current_mode_page[SCSI_MODE_PAGE_01_LENGTH]={0,0,0,0,0,0,0,0,0,0,0,0};
U32 mode_page_offset;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
//Check all the defined bits for this page
//SPF(0b); Page length 0x0A;AWRE 1; ARRE 0; Error recovery bits 0; RC 0;
//Recovery time limit last two bytes 0
sati_get_data_byte(sequence, scsi_io, mode_page_offset, ¤t_mode_page[0]);
sati_get_data_byte(sequence, scsi_io, mode_page_offset+1, ¤t_mode_page[1]);
sati_get_data_byte(sequence, scsi_io, mode_page_offset+2, ¤t_mode_page[2]);
sati_get_data_byte(sequence, scsi_io, mode_page_offset+10, ¤t_mode_page[10]);
sati_get_data_byte(sequence, scsi_io, mode_page_offset+11, ¤t_mode_page[11]);
if ( ((current_mode_page[0] & SCSI_MODE_SELECT_MODE_PAGE_SPF_MASK)!= 0) ||
(current_mode_page[1] != (SCSI_MODE_PAGE_01_LENGTH - 2)) ||
((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_01_AWRE_MASK) == 0) ||
((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_01_ARRE_MASK) != 0) ||
((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_01_RC_ERBITS_MASK) != 0) ||
(current_mode_page[10] != 0 ) ||
(current_mode_page[11] != 0 ) )
{
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
return status;
}
//no need to send any command
{
sequence->command_specific_data.process_state.size_of_data_processed += page_size;
sequence->command_specific_data.process_state.mode_page_offset += page_size;
sequence->command_specific_data.process_state.current_mode_page_processed = TRUE;
}
status = SATI_COMPLETE;
return status;
}
/**
* @brief This method will check the validity of parameter data of Information Exception Control
* mode page and further processing the page data if necessary.
*
* @param[in] page_size This parameter specifies page size of current mode page.
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page_informational_exception_control(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io,
U32 page_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
//SCSI_MODE_PAGE_1C_LENGTH 12
U8 current_mode_page[SCSI_MODE_PAGE_1C_LENGTH]={0,0,0,0,0,0,0,0,0,0,0,0};
U32 mode_page_offset;
U32 index;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
sequence->type = SATI_SEQUENCE_MODE_SELECT_MODE_INFORMATION_EXCEPT_CONTROL;
for(index = 0; index < 4; index++)
{
sati_get_data_byte(sequence, scsi_io, mode_page_offset+index, ¤t_mode_page[index]);
}
//Check for data validity
//SPF(0b); Page length 0x0A; Byte2 0????0?? Byte3: ????1100
//SCSI_MODE_SELECT_MODE_PAGE_MRIE_BYTE same as REPORT_INFO_EXCEPTION_CONDITION_ON_REQUEST 0x6
//SCSI_MODE_PAGE_DEXCPT_ENABLE
if (((current_mode_page[0] & SCSI_MODE_SELECT_MODE_PAGE_SPF_MASK)!= 0) ||
(current_mode_page[1] != (SCSI_MODE_PAGE_1C_LENGTH - 2)) ||
((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_1C_PERF_TEST)!= 0 ) ||
((current_mode_page[3] & SCSI_MODE_SELECT_MODE_PAGE_MRIE_MASK) !=
SCSI_MODE_SELECT_MODE_PAGE_MRIE_BYTE ))
{
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
// DEXCPT bit is set to 0, enable SMART reporting D8h;
// DEXCPT bit is set to 1, disable SMART reporting D9h
// SCSI_MODE_PAGE_DEXCPT_ENABLE== 0x08
if ( (current_mode_page[2] & SCSI_MODE_PAGE_DEXCPT_ENABLE) == 0)
sati_ata_smart_return_status_construct(ata_io, sequence, ATA_SMART_SUB_CMD_ENABLE);
else
sati_ata_smart_return_status_construct(ata_io, sequence, ATA_SMART_SUB_CMD_DISABLE);
sequence->command_specific_data.process_state.size_of_data_processed += page_size;
sequence->command_specific_data.process_state.mode_page_offset += page_size;
sequence->command_specific_data.process_state.current_mode_page_processed = TRUE;
// No more ata commands to send
status = SATI_SUCCESS;
return status;
}
/**
* @brief This method will check the validity of parameter data of Control mode
* page and further processing the page data if necessary.
*
* @param[in] mode_select_process_state This parameter points to the processing state fields
* of current mode page.
* @param[in] page_size This parameter specifies page size of current mode page.
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page_control(
SATI_TRANSLATOR_SEQUENCE_T* sequence,
void * scsi_io,
void * ata_io,
U32 page_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
//SCSI_MODE_PAGE_0A_LENGTH 12
U8 current_mode_page[SCSI_MODE_PAGE_0A_LENGTH]={0,0,0,0,0,0,0,0,0,0};
U32 mode_page_offset;
U32 index;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
for(index = 0; index < SCSI_MODE_PAGE_0A_LENGTH; index++)
{
sati_get_data_byte(sequence, scsi_io, mode_page_offset+index, ¤t_mode_page[index]);
}
//bit 1 and 2 of byte3 Qerr full task management model etc. then both bits 0
//byte 8 and 9 busy time out period variable if not ffff setable?
//check for page data validity
//Byte2: 0000???0b Byte3: Queued Algorithm Modifier should be set to 1 QErr?
//Byte4: ??000??? Byte5: ?0???000
if (((current_mode_page[0] & SCSI_MODE_SELECT_MODE_PAGE_SPF_MASK)!= 0) ||
(current_mode_page[1] != (SCSI_MODE_PAGE_0A_LENGTH - 2)) ||
((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_0A_TST_TMF_RLEC) != 0) ||
((current_mode_page[3] & SCSI_MODE_SELECT_MODE_PAGE_0A_MODIFIER) != 0) ||
((current_mode_page[4] & SCSI_MODE_SELECT_MODE_PAGE_0A_UA_SWP ) != 0) ||
((current_mode_page[5] & SCSI_MODE_SELECT_MODE_PAGE_0A_TAS_AUTO ) != 0 ) )
{
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
if ((current_mode_page[2] & SCSI_MODE_SELECT_MODE_PAGE_D_SENSE) != 0)
sequence->device->descriptor_sense_enable = SCSI_MODE_PAGE_CONTROL_D_SENSE_ENABLE;
else
sequence->device->descriptor_sense_enable = SCSI_MODE_PAGE_CONTROL_D_SENSE_DISABLE;
// no ata command need to be comfirmed
{
sequence->command_specific_data.process_state.size_of_data_processed += page_size;
sequence->command_specific_data.process_state.mode_page_offset += page_size;
sequence->command_specific_data.process_state.current_mode_page_processed = TRUE;
}
status = SATI_COMPLETE;
return status;
}
/**
* @brief This method updates the unmap sequence state to the next
* unmap descriptor
*
* @return Indicate if the method was successfully completed.
* @retval SATI_SUCCESS This is returned in all other cases.
*/
SATI_STATUS sati_unmap_load_next_descriptor(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io
)
{
SATI_UNMAP_PROCESSING_STATE_T * unmap_process_state;
U32 index;
U8 unmap_block_descriptor[16];
unmap_process_state = &sequence->command_specific_data.unmap_process_state;
// Load the next descriptor
for(index = unmap_process_state->current_unmap_block_descriptor_index;
index < unmap_process_state->current_unmap_block_descriptor_index +
SATI_UNMAP_SIZEOF_SCSI_UNMAP_BLOCK_DESCRIPTOR;
index++)
{
sati_get_data_byte(sequence,
scsi_io,
index,
&unmap_block_descriptor[index-unmap_process_state->current_unmap_block_descriptor_index]);
}
// Update the internal state for the next translation pass
unmap_process_state->current_lba_count = (unmap_block_descriptor[8] << 24) |
(unmap_block_descriptor[9] << 16) |
(unmap_block_descriptor[10] << 8) |
(unmap_block_descriptor[11]);
unmap_process_state->current_lba = ((SATI_LBA)(unmap_block_descriptor[0]) << 56) |
((SATI_LBA)(unmap_block_descriptor[1]) << 48) |
((SATI_LBA)(unmap_block_descriptor[2]) << 40) |
((SATI_LBA)(unmap_block_descriptor[3]) << 32) |
((SATI_LBA)(unmap_block_descriptor[4]) << 24) |
((SATI_LBA)(unmap_block_descriptor[5]) << 16) |
((SATI_LBA)(unmap_block_descriptor[6]) << 8) |
((SATI_LBA)(unmap_block_descriptor[7]));
unmap_process_state->next_lba = 0;
// Update the index for the next descriptor to translate
unmap_process_state->current_unmap_block_descriptor_index += SATI_UNMAP_SIZEOF_SCSI_UNMAP_BLOCK_DESCRIPTOR;
return SATI_SUCCESS;
}
/**
* @brief This method will translate the SCSI Mode Select 6 byte or 10 byte command
* into corresponding ATA commands. Depending upon the capabilities
* supported by the target different ATA commands can be selected.
* Additionally, in some cases more than a single ATA command may
* be required.
*
* @return Indicate if the command translation succeeded.
* @retval SCI_SUCCESS This is returned if the command translation was
* successful.
* @retval SCI_COMPLETE This is returned if the command translation was
* successful and no ATA commands need to be set.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
* sense data has been created as a result of something specified
* in the parameter data fields.
*/
static
SATI_STATUS sati_mode_select_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io,
U32 cdb_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
U32 mode_page_offset;
U32 block_descriptor_length;
U32 index;
U16 data_transfer_length;
U8 current_mode_parameters[8]={0,0,0,0,0,0,0,0};
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
// cdb_size must be 6 or 10
if(FALSE == (cdb_size == 6 || cdb_size == 10))
{
return status;
}
if(sequence->state == SATI_SEQUENCE_STATE_INITIAL)
{
sequence->command_specific_data.process_state.ata_command_sent_for_cmp = 0;
sequence->state = SATI_SEQUENCE_STATE_TRANSLATE_DATA;
}
//First, initializes mode_sel_processing_state
if ( sequence->command_specific_data.process_state.ata_command_sent_for_cmp == 0 )
{
if (cdb_size == 6)
{
//CDB byte 4 is the parameter length
data_transfer_length = sati_get_cdb_byte(cdb, 4);
}
else
{
//CDB byte 7 and 8 for Mode Select 10
data_transfer_length = (sati_get_cdb_byte(cdb, 7) << 8) + sati_get_cdb_byte(cdb, 8);
}
sequence->allocation_length = data_transfer_length;
//Get 8 bytes for headers (4 bytes for Mode Select 6 and 8 bytes for Mode Select 10)
for( index = 0; index < 8; index++ )
{
sati_get_data_byte(sequence, scsi_io, index, ¤t_mode_parameters[index]);
}
//medium type should be 0
if ( sati_mode_select_get_medium_type(current_mode_parameters, cdb_size) != 0 )
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_PARM_LIST,
SCSI_ASCQ_INVALID_FIELD_IN_PARM_LIST
);
return status;
}
block_descriptor_length = sati_mode_select_get_mode_block_descriptor_length(
current_mode_parameters,
cdb_size
);
mode_page_offset = sati_mode_select_get_mode_page_offset(
block_descriptor_length,
cdb_size
);
if(mode_page_offset > data_transfer_length)
{
sequence->state = SATI_SEQUENCE_STATE_FINAL;
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
sati_mode_select_initialize_mode_sel_processing_state(
sequence,
scsi_io,
ata_io,
data_transfer_length,
mode_page_offset
);
}
}
// move to next mode page
if(sequence->command_specific_data.process_state.current_mode_page_processed)
{
sequence->command_specific_data.process_state.ata_command_sent_for_cmp = 0;
sequence->command_specific_data.process_state.current_mode_page_processed = FALSE;
}
status = sati_mode_select_process_mode_page(sequence, scsi_io, ata_io);
if(sequence->command_specific_data.process_state.current_mode_page_processed != FALSE)
{
// Done this page
sequence->state = SATI_SEQUENCE_STATE_FINAL;
}
else
{
sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
}
if(status == SATI_FAILURE_CHECK_RESPONSE_DATA)
{
sequence->state = SATI_SEQUENCE_STATE_FINAL;
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_PARM_LIST,
SCSI_ASCQ_INVALID_FIELD_IN_PARM_LIST
);
}
return status;
}
/**
* @brief This method will process the mode page.
*
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page(
SATI_TRANSLATOR_SEQUENCE_T* sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
U8 page_code;
U32 page_size = 0; // in bytes
U32 size_of_data_to_be_processed;
U8 page_code_byte;
U32 mode_page_offset;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
sati_get_data_byte(sequence, scsi_io, mode_page_offset, &page_code_byte);
// No more pages.
if(sequence->command_specific_data.process_state.mode_pages_size >
sequence->command_specific_data.process_state.size_of_data_processed)
{
//SCSI_MODE_SENSE_PAGE_CODE_ENABLE==0x3f same for Mode Select
page_code = page_code_byte & SCSI_MODE_SENSE_PAGE_CODE_ENABLE;
page_size = sati_mode_select_get_mode_page_size(page_code);
size_of_data_to_be_processed = sequence->command_specific_data.process_state.mode_pages_size
- sequence->command_specific_data.process_state.size_of_data_processed;
if( page_size == 0 )
{
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
// process mode page
switch(page_code)
{
case SCSI_MODE_PAGE_READ_WRITE_ERROR:
status = sati_mode_select_process_mode_page_read_write_error_recovery(
sequence,
scsi_io,
page_size
);
break;
case SCSI_MODE_PAGE_DISCONNECT_RECONNECT:
status = sati_mode_select_process_mode_page_disconnect_reconnect(
&sequence->command_specific_data.process_state,
page_size
);
break;
case SCSI_MODE_PAGE_CACHING:
status = sati_mode_select_process_mode_page_caching(
sequence,
scsi_io,
ata_io,
page_size
);
break;
case SCSI_MODE_PAGE_CONTROL:
status = sati_mode_select_process_mode_page_control(
sequence,
scsi_io,
ata_io,
page_size
);
break;
case SCSI_MODE_PAGE_INFORMATIONAL_EXCP_CONTROL:
status = sati_mode_select_process_mode_page_informational_exception_control(
sequence,
scsi_io,
ata_io,
page_size
);
break;
case SCSI_MODE_PAGE_POWER_CONDITION:
status = sati_mode_select_process_mode_page_power_condition(
sequence,
scsi_io,
ata_io,
page_size
);
break;
default:
break;
}
}
}
return status;
}
/**
* @brief This method will check the validity of parameter data of Power Condition mode
* page and issue multiple ATA set feature commands to complete the translation.
*
* @param[in] mode_select_process_state This parameter points to the processing state fields
* of current mode page.
* @param[in] page_size This parameter specifies page size of current mode page.
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page_power_condition(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io,
U32 page_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
//SCSI_MODE_PAGE_1A_LENGTH 10
U8 current_mode_page[SCSI_MODE_PAGE_1A_LENGTH] = {0,0,0,0,0,0,0,0,0,0};
U32 mode_page_offset;
U32 index;
U32 timer = 0;
U16 count = 0;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
sequence->type = SATI_SEQUENCE_MODE_SELECT_MODE_POWER_CONDITION;
for(index = 0; index < SCSI_MODE_PAGE_1A_LENGTH; index++)
{
sati_get_data_byte(sequence, scsi_io, mode_page_offset+index, ¤t_mode_page[index]);
}
//Check for data validity
//SPF(0b); Page length 0x0A;
if (((current_mode_page[0] & SCSI_MODE_SELECT_MODE_PAGE_SPF_MASK)!= 0) ||
(current_mode_page[1] != (SCSI_MODE_PAGE_1A_LENGTH - 2) ) ||
((current_mode_page[3] & SCSI_MODE_PAGE_POWER_CONDITION_IDLE)!= 0)
)
{
//parameter data passed in containing data that doesn't meet the SAT-2 requirement
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
// STANDBY bit is set to 0, do nothing since the standby timer can't be set;
// STANDBY bit is set to 1, translate the standby timer
// SCSI_MODE_PAGE_POWER_CONDITION_STANDBY== 0x01
if (current_mode_page[3] & SCSI_MODE_PAGE_POWER_CONDITION_STANDBY)
{
timer = (current_mode_page[8]<<24) + (current_mode_page[9]<<16) + (current_mode_page[10]<<8) + current_mode_page[11];
//If the ATA IDENTIFY DEVICE data word 49, bit 13 is set to one,
if (sequence->device->capabilities & SATI_DEVICE_CAP_STANDBY_ENABLE)
{
if (timer == 0)
{
//TPV=0 send ATA STANDBY_IMMEDIATE
sati_ata_standby_immediate_construct(ata_io, sequence);
sequence->command_specific_data.translated_command = ATA_STANDBY_IMMED;
}
else if ((timer > 0) && (timer <= 12000))
{
//1 to 12 000 INT((z - 1) / 50) + 1
count = (U16)((timer -1) / 50) + 1;
sati_ata_standby_construct(ata_io, sequence, count);
}
else if ((timer > 12000) && (timer <= 12600))
{
//12 001 to 12 600 FCh
sati_ata_standby_construct(ata_io, sequence, 0xFC);
}
else if ((timer > 12600) && (timer <= 12750))
{
//12 601 to 12 750 FFh
sati_ata_standby_construct(ata_io, sequence, 0xFF);
}
else if ((timer > 12750) && (timer < 18000))
{
//12 751 to 17 999 F1h
sati_ata_standby_construct(ata_io, sequence, 0xF1);
}
else if ((timer >= 18000) && (timer <= 198000))
{
//18 000 to 198 000 INT(z / 18 000) + 240
count = (U16)(timer / 18000) + 240;
sati_ata_standby_construct(ata_io, sequence, count);
}
else
{
//All other values FDh
sati_ata_standby_construct(ata_io, sequence, 0xFD);
}
status = SATI_SUCCESS ;
}
else
{
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
//If the ATA IDENTIFY DEVICE data word 49, bit 13 is set to 0
}
}
else
{
status = SATI_COMPLETE;
}
sequence->command_specific_data.process_state.size_of_data_processed += page_size;
sequence->command_specific_data.process_state.mode_page_offset += page_size;
sequence->command_specific_data.process_state.current_mode_page_processed = TRUE;
return status;
}
/**
* @brief This method will check the validity of parameter data of Caching mode
* page and issue multiple ATA set feature commands to complete the translation.
*
* @param[in] page_size This parameter specifies page size of current mode page.
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS
* @retval SATI_COMPLETE
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA
*/
static
SATI_STATUS sati_mode_select_process_mode_page_caching(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io,
U32 page_size
)
{
SATI_STATUS status = SATI_FAILURE_CHECK_RESPONSE_DATA;
//SCSI_MODE_PAGE_08_LENGTH 0x14= 20
U8 current_mode_page[SCSI_MODE_PAGE_08_LENGTH] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
U32 mode_page_offset;
U32 index;
mode_page_offset = sequence->command_specific_data.process_state.mode_page_offset;
sequence->type = SATI_SEQUENCE_MODE_SELECT_MODE_PAGE_CACHING;
for(index = 0; index < SCSI_MODE_PAGE_08_LENGTH; index++)
{
sati_get_data_byte(sequence, scsi_io, mode_page_offset+index, ¤t_mode_page[index]);
}
//Check for data validity
//SPF(0b); Page length 0x12;Byte2 to Byte15 all 0 with exception DRA and WCE changeable
if (((current_mode_page[0] & SCSI_MODE_SELECT_MODE_PAGE_SPF_MASK)!= 0) ||
(current_mode_page[1] != (SCSI_MODE_PAGE_08_LENGTH-2)) ||
((current_mode_page[2] | SCSI_MODE_PAGE_CACHE_PAGE_WCE_BIT)!=SCSI_MODE_PAGE_CACHE_PAGE_WCE_BIT) ||
(current_mode_page[3] != 0 ) ||
(current_mode_page[4] != 0 ) ||
(current_mode_page[5] != 0 ) ||
(current_mode_page[6] != 0 ) ||
(current_mode_page[7] != 0 ) ||
(current_mode_page[8] != 0 ) ||
(current_mode_page[9] != 0 ) ||
(current_mode_page[10] != 0 ) ||
(current_mode_page[11] != 0 ) ||
((current_mode_page[12] & SCSI_MODE_SELECT_MODE_PAGE_08_FSW_LBCSS_NVDIS) != 0) ||
(current_mode_page[13] != 0 ) ||
(current_mode_page[14] != 0 ) ||
(current_mode_page[15] != 0 ))
{
//parameter data passed in containing data that doesn't meet the SAT-2 requirement
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
if(sequence->command_specific_data.process_state.ata_command_sent_for_cmp == 0)
{
//byte2 bit2 WCE==0 disable write cache WCE==1 enable write cache
//SCSI_MODE_PAGE_CACHE_PAGE_WCE_BIT ==0x4,
if ( (current_mode_page[2] & SCSI_MODE_PAGE_CACHE_PAGE_WCE_BIT) == 0)
sati_ata_set_features_construct(ata_io, sequence, ATA_SET_FEATURES_SUB_CMD_DISABLE_CACHE);
else
sati_ata_set_features_construct(ata_io, sequence, ATA_SET_FEATURES_SUB_CMD_ENABLE_CACHE);
}
else if(sequence->command_specific_data.process_state.ata_command_sent_for_cmp == 1)
{
// DRA bit is set to 0, enable Read look ahead AAh;
// DRA bit is set to 1, disable with set feature command 55h
// SCSI_MODE_PAGE_CACHE_PAGE_DRA_BIT== 0x20
if ( (current_mode_page[12] & SCSI_MODE_PAGE_CACHE_PAGE_DRA_BIT) == 0)
sati_ata_set_features_construct(ata_io, sequence,ATA_SET_FEATURES_SUB_CMD_ENABLE_READ_AHEAD);
else
sati_ata_set_features_construct(ata_io, sequence,ATA_SET_FEATURES_SUB_CMD_DISABLE_READ_AHEAD);
sequence->command_specific_data.process_state.size_of_data_processed += page_size;
sequence->command_specific_data.process_state.mode_page_offset += page_size;
sequence->command_specific_data.process_state.current_mode_page_processed = TRUE;
}
// No more ata commands to send
sequence->command_specific_data.process_state.ata_command_sent_for_cmp++;
status = SATI_SUCCESS;
return status;
}
/**
* @brief This method will be called before starting the first unmap translation
*
* @return Indicate if the translation was successful.
* @retval SATI_SUCCESS This is returned if the command translation was
* successful and no further processing.
* @retval SATI_COMPLETE - The initial processing was completed successfully
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA - Failed the initial processing
*/
SATI_STATUS sati_unmap_initial_processing(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_UNMAP_PROCESSING_STATE_T * unmap_process_state;
U8 * cdb;
U16 unmap_length;
U32 descriptor_length;
U32 index;
U32 max_dsm_blocks;
U8 unmap_param_list[8];
unmap_process_state = &sequence->command_specific_data.unmap_process_state;
// Set up the sequence type for unmap translation
sequence->type = SATI_SEQUENCE_UNMAP;
// Make sure the device is TRIM capable
if ((sequence->device->capabilities & SATI_DEVICE_CAP_DSM_TRIM_SUPPORT)
!= SATI_DEVICE_CAP_DSM_TRIM_SUPPORT)
{
// Can't send TRIM request to device that does not support it
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
// get the amount of data being sent from the cdb
cdb = sati_cb_get_cdb_address(scsi_io);
unmap_length = (sati_get_cdb_byte(cdb, 7) << 8) | sati_get_cdb_byte(cdb, 8);
// If nothing has been requested return success now.
if (unmap_length == 0)
{
// SAT: This is not an error
return SATI_SUCCESS;
}
if (unmap_length < SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST)
{
// Not enough length specified in the CDB
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
sequence->allocation_length = unmap_length;
// Get the unmap parameter header
for(index = 0; index < SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST; index++)
{
sati_get_data_byte(sequence, scsi_io, index, &unmap_param_list[index]);
}
descriptor_length = (unmap_param_list[2] << 8) | unmap_param_list[3];
// Check length again
if (descriptor_length == 0)
{
// SAT: This is not an error
return SATI_SUCCESS;
}
if ((U32)(unmap_length - SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST) < descriptor_length)
{
// Not enough length specified in the CDB
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
// Save the maximum unmap block descriptors in this request
unmap_process_state->max_unmap_block_descriptors =
descriptor_length/SATI_UNMAP_SIZEOF_SCSI_UNMAP_BLOCK_DESCRIPTOR;
// Determine the maximum size of the write buffer that will be required
// for the translation in terms of number of blocks
max_dsm_blocks = sati_unmap_get_max_buffer_size_in_blocks(sequence);
// Save the maximum number of DSM descriptors we can send during the translation
unmap_process_state->max_lba_range_entries =
(max_dsm_blocks*sequence->device->logical_block_size)/sizeof(TRIM_PAIR);
// Get the write buffer for the translation
sati_cb_allocate_dma_buffer(
scsi_io,
max_dsm_blocks*sequence->device->logical_block_size,
&(unmap_process_state->virtual_unmap_buffer),
&(unmap_process_state->physical_unmap_buffer_low),
&(unmap_process_state->physical_unmap_buffer_high));
// Makes sure we have a buffer
if (unmap_process_state->virtual_unmap_buffer == NULL)
{
// Resource failure
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_BUSY,
SCSI_SENSE_NO_SENSE,
SCSI_ASC_NO_ADDITIONAL_SENSE,
SCSI_ASCQ_NO_ADDITIONAL_SENSE
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
// Get the first SGL entry. This code will only use one 4K page so will
// only utilize the first sge.
sati_cb_sgl_next_sge(scsi_io,
ata_io,
NULL,
&(unmap_process_state->unmap_buffer_sgl_pair));
// Load the first descriptor to start the translation loop
unmap_process_state->current_unmap_block_descriptor_index =
SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST;
sati_unmap_load_next_descriptor(sequence,scsi_io);
// Next state will be incomplete since translation
// will require a callback and possibly more requests.
sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
return SATI_COMPLETE;
}
