isci: Fixup SSP command IU and task IU
Fixup of SSP command IU and SSP task IU to something that looks like Linux Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dave Jiang
Dan Williams
parent
ed0e24830e
commit
0cfa890e5a
5 changed files with 74 additions and 285 deletions
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@ -160,53 +160,6 @@ enum sci_sas_frame_type {
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SCI_SAS_TASK_FRAME = 0x16
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};
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/**
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* struct sci_ssp_command_iu - This structure depicts the contents of the SSP
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* COMMAND INFORMATION UNIT. For specific information on each of these
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* individual fields please reference the SAS specification SSP transport
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* layer section.
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*
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*
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*/
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struct sci_ssp_command_iu {
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u32 lun_upper;
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u32 lun_lower;
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u32 additional_cdb_length:6;
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u32 reserved0:2;
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u32 reserved1:8;
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u32 enable_first_burst:1;
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u32 task_priority:4;
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u32 task_attribute:3;
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u32 reserved2:8;
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u32 cdb[4];
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};
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/**
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* struct sci_ssp_task_iu - This structure depicts the contents of the SSP TASK
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* INFORMATION UNIT. For specific information on each of these individual
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* fields please reference the SAS specification SSP transport layer section.
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*
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*
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*/
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struct sci_ssp_task_iu {
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u32 lun_upper;
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u32 lun_lower;
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u32 reserved0:8;
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u32 task_function:8;
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u32 reserved1:8;
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u32 reserved2:8;
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u32 reserved3:16;
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u32 task_tag:16;
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u32 reserved4[3];
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};
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#define SSP_RESPONSE_IU_MAX_DATA 64
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#define SCI_SSP_RESPONSE_IU_DATA_PRESENT_MASK (0x03)
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@ -54,6 +54,7 @@
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*/
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#include <scsi/sas.h>
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#include "sas.h"
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#include "intel_sas.h"
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#include "scic_controller.h"
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#include "scic_io_request.h"
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@ -98,7 +99,7 @@
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*/
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#define scic_ssp_io_request_get_object_size() \
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(\
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sizeof(struct sci_ssp_command_iu) \
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sizeof(struct ssp_cmd_iu) \
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+ sizeof(struct sci_ssp_response_iu) \
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)
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@ -109,7 +110,7 @@
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* memory
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*/
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#define scic_sds_ssp_request_get_command_buffer(memory) \
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((struct sci_ssp_command_iu *)(\
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((struct ssp_cmd_iu *)(\
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((char *)(memory)) + sizeof(struct scic_sds_request) \
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))
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@ -122,7 +123,7 @@
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#define scic_sds_ssp_request_get_response_buffer(memory) \
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((struct sci_ssp_response_iu *)(\
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((char *)(scic_sds_ssp_request_get_command_buffer(memory))) \
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+ sizeof(struct sci_ssp_command_iu) \
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+ sizeof(struct ssp_cmd_iu) \
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))
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/**
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@ -158,7 +159,7 @@
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*/
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#define scic_ssp_task_request_get_object_size() \
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(\
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sizeof(struct sci_ssp_task_iu) \
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sizeof(struct ssp_task_iu) \
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+ sizeof(struct sci_ssp_response_iu) \
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)
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@ -169,7 +170,7 @@
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* memory. Yes its the same as the above macro except for the name.
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*/
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#define scic_sds_ssp_task_request_get_command_buffer(memory) \
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((struct sci_ssp_task_iu *)(\
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((struct ssp_task_iu *)(\
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((char *)(memory)) + sizeof(struct scic_sds_request) \
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))
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@ -182,7 +183,7 @@
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#define scic_sds_ssp_task_request_get_response_buffer(memory) \
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((struct sci_ssp_response_iu *)(\
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((char *)(scic_sds_ssp_task_request_get_command_buffer(memory))) \
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+ sizeof(struct sci_ssp_task_iu) \
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+ sizeof(struct ssp_task_iu) \
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))
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/**
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@ -344,80 +345,49 @@ static void scic_sds_ssp_io_request_assign_buffers(
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}
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}
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/**
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* This method constructs the SSP Command IU data for this io request object.
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* @sci_req: This parameter specifies the request object for which the SSP
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* command information unit is being built.
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*
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*/
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static void scic_sds_io_request_build_ssp_command_iu(
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struct scic_sds_request *sds_request)
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static void scic_sds_io_request_build_ssp_command_iu(struct scic_sds_request *sci_req)
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{
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struct sci_ssp_command_iu *command_frame;
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u32 cdb_length;
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u32 *cdb_buffer;
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struct isci_request *isci_request = sds_request->ireq;
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struct ssp_cmd_iu *cmd_iu;
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struct isci_request *ireq = sci_req->ireq;
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struct sas_task *task = isci_request_access_task(ireq);
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command_frame =
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(struct sci_ssp_command_iu *)sds_request->command_buffer;
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cmd_iu = sci_req->command_buffer;
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command_frame->lun_upper = 0;
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command_frame->lun_lower =
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isci_request_ssp_io_request_get_lun(isci_request);
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memcpy(cmd_iu->LUN, task->ssp_task.LUN, 8);
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cmd_iu->add_cdb_len = 0;
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cmd_iu->_r_a = 0;
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cmd_iu->_r_b = 0;
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cmd_iu->en_fburst = 0; /* unsupported */
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cmd_iu->task_prio = task->ssp_task.task_prio;
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cmd_iu->task_attr = task->ssp_task.task_attr;
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cmd_iu->_r_c = 0;
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((u32 *)command_frame)[2] = 0;
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cdb_length = isci_request_ssp_io_request_get_cdb_length(isci_request);
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cdb_buffer = (u32 *)isci_request_ssp_io_request_get_cdb_address(
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isci_request);
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if (cdb_length > 16) {
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command_frame->additional_cdb_length = cdb_length - 16;
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}
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/* / @todo Is it ok to leave junk at the end of the cdb buffer? */
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scic_word_copy_with_swap(
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(u32 *)(&command_frame->cdb),
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(u32 *)(cdb_buffer),
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(cdb_length + 3) / sizeof(u32)
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);
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command_frame->enable_first_burst = 0;
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command_frame->task_priority =
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isci_request_ssp_io_request_get_command_priority(isci_request);
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command_frame->task_attribute =
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isci_request_ssp_io_request_get_task_attribute(isci_request);
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(u32 *)(&cmd_iu->cdb),
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(u32 *)task->ssp_task.cdb,
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sizeof(task->ssp_task.cdb) / sizeof(u32));
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}
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/**
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* This method constructs the SSP Task IU data for this io request object.
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* @sci_req:
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*
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*/
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static void scic_sds_task_request_build_ssp_task_iu(
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struct scic_sds_request *sds_request)
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static void scic_sds_task_request_build_ssp_task_iu(struct scic_sds_request *sci_req)
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{
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struct sci_ssp_task_iu *command_frame;
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struct isci_request *isci_request = sds_request->ireq;
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struct ssp_task_iu *task_iu;
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struct isci_request *ireq = sci_req->ireq;
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struct sas_task *task = isci_request_access_task(ireq);
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struct isci_tmf *isci_tmf = isci_request_access_tmf(ireq);
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command_frame =
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(struct sci_ssp_task_iu *)sds_request->command_buffer;
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task_iu = sci_req->command_buffer;
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command_frame->lun_upper = 0;
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command_frame->lun_lower = isci_request_ssp_io_request_get_lun(
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isci_request);
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memset(task_iu, 0, sizeof(struct ssp_task_iu));
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((u32 *)command_frame)[2] = 0;
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memcpy(task_iu->LUN, task->ssp_task.LUN, 8);
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command_frame->task_function =
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isci_task_ssp_request_get_function(isci_request);
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command_frame->task_tag =
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isci_task_ssp_request_get_io_tag_to_manage(
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isci_request);
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task_iu->task_func = isci_tmf->tmf_code;
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task_iu->task_tag =
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(ireq->ttype == tmf_task) ?
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isci_tmf->io_tag :
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SCI_CONTROLLER_INVALID_IO_TAG;
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}
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/**
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* This method is will fill in the SCU Task Context for any type of SSP request.
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* @sci_req:
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@ -533,7 +503,8 @@ static void scu_ssp_io_request_construct_task_context(
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scu_ssp_reqeust_construct_task_context(sci_req, task_context);
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task_context->ssp_command_iu_length = sizeof(struct sci_ssp_command_iu) / sizeof(u32);
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task_context->ssp_command_iu_length =
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sizeof(struct ssp_cmd_iu) / sizeof(u32);
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task_context->type.ssp.frame_type = SCI_SAS_COMMAND_FRAME;
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switch (dir) {
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@ -605,7 +576,8 @@ static void scu_ssp_task_request_construct_task_context(
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task_context->task_type = SCU_TASK_TYPE_RAW_FRAME;
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task_context->transfer_length_bytes = 0;
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task_context->type.ssp.frame_type = SCI_SAS_TASK_FRAME;
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task_context->ssp_command_iu_length = sizeof(struct sci_ssp_task_iu) / sizeof(u32);
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task_context->ssp_command_iu_length =
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sizeof(struct ssp_task_iu) / sizeof(u32);
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}
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@ -1241,124 +1241,3 @@ enum dma_data_direction isci_request_io_request_get_data_direction(
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return task->data_dir;
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}
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/**
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* isci_request_sge_get_address_field() - This function is called by the sci
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* core to retrieve the address field contents for a given sge.
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* @request: This parameter is the isci_request object.
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* @sge_address: This parameter is the sge.
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*
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* physical address in the specified sge.
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*/
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/**
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* isci_request_sge_get_length_field() - This function is called by the sci
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* core to retrieve the length field contents for a given sge.
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* @request: This parameter is the isci_request object.
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* @sge_address: This parameter is the sge.
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*
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* length field value in the specified sge.
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*/
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/**
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* isci_request_ssp_io_request_get_cdb_address() - This function is called by
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* the sci core to retrieve the cdb address for a given request.
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* @request: This parameter is the isci_request object.
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*
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* cdb address for specified request.
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*/
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void *isci_request_ssp_io_request_get_cdb_address(
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struct isci_request *request)
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{
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struct sas_task *task = isci_request_access_task(request);
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dev_dbg(&request->isci_host->pdev->dev,
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"%s: request->task->ssp_task.cdb = %p\n",
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__func__,
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task->ssp_task.cdb);
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return task->ssp_task.cdb;
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}
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/**
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* isci_request_ssp_io_request_get_cdb_length() - This function is called by
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* the sci core to retrieve the cdb length for a given request.
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* @request: This parameter is the isci_request object.
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*
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* cdb length for specified request.
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*/
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u32 isci_request_ssp_io_request_get_cdb_length(
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struct isci_request *request)
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{
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return 16;
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}
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/**
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* isci_request_ssp_io_request_get_lun() - This function is called by the sci
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* core to retrieve the lun for a given request.
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* @request: This parameter is the isci_request object.
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*
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* lun for specified request.
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*/
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u32 isci_request_ssp_io_request_get_lun(
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struct isci_request *request)
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{
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struct sas_task *task = isci_request_access_task(request);
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#ifdef DEBUG
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int i;
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for (i = 0; i < 8; i++)
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dev_dbg(&request->isci_host->pdev->dev,
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"%s: task->ssp_task.LUN[%d] = %x\n",
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__func__, i, task->ssp_task.LUN[i]);
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#endif
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return task->ssp_task.LUN[0];
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}
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/**
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* isci_request_ssp_io_request_get_task_attribute() - This function is called
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* by the sci core to retrieve the task attribute for a given request.
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* @request: This parameter is the isci_request object.
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*
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* task attribute for specified request.
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*/
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u32 isci_request_ssp_io_request_get_task_attribute(
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struct isci_request *request)
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{
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struct sas_task *task = isci_request_access_task(request);
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dev_dbg(&request->isci_host->pdev->dev,
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"%s: request->task->ssp_task.task_attr = %x\n",
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__func__,
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task->ssp_task.task_attr);
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return task->ssp_task.task_attr;
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}
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/**
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* isci_request_ssp_io_request_get_command_priority() - This function is called
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* by the sci core to retrieve the command priority for a given request.
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* @request: This parameter is the isci_request object.
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*
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* command priority for specified request.
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*/
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u32 isci_request_ssp_io_request_get_command_priority(
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struct isci_request *request)
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{
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struct sas_task *task = isci_request_access_task(request);
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dev_dbg(&request->isci_host->pdev->dev,
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"%s: request->task->ssp_task.task_prio = %x\n",
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__func__,
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task->ssp_task.task_prio);
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return task->ssp_task.task_prio;
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}
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@ -69,4 +69,38 @@
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#define FIS_PIO_SETUP 0x5F
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#define FIS_DATA 0x46
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/*
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* contents of the SSP COMMAND INFORMATION UNIT.
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* For specific information on each of these individual fields please
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* reference the SAS specification SSP transport layer section.
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* XXX: This needs to go into <scsi/sas.h>
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*/
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struct ssp_cmd_iu {
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u8 LUN[8];
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u8 add_cdb_len:6;
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u8 _r_a:2;
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u8 _r_b;
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u8 en_fburst:1;
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u8 task_prio:4;
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u8 task_attr:3;
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u8 _r_c;
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u8 cdb[16];
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} __packed;
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/*
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* contents of the SSP TASK INFORMATION UNIT.
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* For specific information on each of these individual fields please
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* reference the SAS specification SSP transport layer section.
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* XXX: This needs to go into <scsi/sas.h>
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*/
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struct ssp_task_iu {
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u8 LUN[8];
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u8 _r_a;
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u8 task_func;
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u8 _r_b[4];
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u16 task_tag;
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u8 _r_c[12];
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} __packed;
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#endif
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@ -1481,55 +1481,6 @@ void isci_task_request_complete(
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complete(tmf_complete);
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}
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/**
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* isci_task_ssp_request_get_lun() - This function is called by the sci core to
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* retrieve the lun for a given task request.
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* @request: This parameter is the isci_request object.
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*
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* lun for specified task request.
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*/
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/**
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* isci_task_ssp_request_get_function() - This function is called by the sci
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* core to retrieve the function for a given task request.
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* @request: This parameter is the isci_request object.
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*
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* function code for specified task request.
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*/
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u8 isci_task_ssp_request_get_function(struct isci_request *request)
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{
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struct isci_tmf *isci_tmf = isci_request_access_tmf(request);
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dev_dbg(&request->isci_host->pdev->dev,
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"%s: func = %d\n", __func__, isci_tmf->tmf_code);
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return isci_tmf->tmf_code;
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}
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/**
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* isci_task_ssp_request_get_io_tag_to_manage() - This function is called by
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* the sci core to retrieve the io tag for a given task request.
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* @request: This parameter is the isci_request object.
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*
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* io tag for specified task request.
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*/
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u16 isci_task_ssp_request_get_io_tag_to_manage(struct isci_request *request)
|
||||
{
|
||||
u16 io_tag = SCI_CONTROLLER_INVALID_IO_TAG;
|
||||
|
||||
if (tmf_task == request->ttype) {
|
||||
struct isci_tmf *tmf = isci_request_access_tmf(request);
|
||||
io_tag = tmf->io_tag;
|
||||
}
|
||||
|
||||
dev_dbg(&request->isci_host->pdev->dev,
|
||||
"%s: request = %p, io_tag = %d\n",
|
||||
__func__, request, io_tag);
|
||||
|
||||
return io_tag;
|
||||
}
|
||||
|
||||
/**
|
||||
* isci_task_ssp_request_get_response_data_address() - This function is called
|
||||
* by the sci core to retrieve the response data address for a given task
|
||||
|
|
|
|||
Loading…
Reference in a new issue