return (char *)ireq + offset;
}
+dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sds_request,
+ void *virt_addr)
+{
+ struct isci_request *isci_request =
+ (struct isci_request *)sci_object_get_association(sds_request);
+
+ char *requested_addr = (char *)virt_addr;
+ char *base_addr = (char *)isci_request;
+
+ BUG_ON(requested_addr < base_addr);
+ BUG_ON((requested_addr - base_addr) >=
+ isci_request->request_alloc_size);
+
+ return isci_request->request_daddr + (requested_addr - base_addr);
+}
void *scic_request_get_virt_addr(struct scic_sds_request *sds_request,
dma_addr_t phys_addr);
+dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sds_request,
+ void *virt_addr);
+
#endif /* _SCI_UTIL_H_ */
* the Scatter-Gather List.
*
*/
-void scic_sds_request_build_sgl(
- struct scic_sds_request *this_request)
+void scic_sds_request_build_sgl(struct scic_sds_request *sds_request)
{
- void *os_sge;
- void *os_handle;
- dma_addr_t physical_address;
- u32 sgl_pair_index = 0;
- struct scu_sgl_element_pair *scu_sgl_list = NULL;
- struct scu_sgl_element_pair *previous_pair = NULL;
-
- os_handle = scic_sds_request_get_user_request(this_request);
- scic_cb_io_request_get_next_sge(os_handle, NULL, &os_sge);
-
- while (os_sge != NULL) {
- scu_sgl_list =
- scic_sds_request_get_sgl_element_pair(this_request, sgl_pair_index);
-
- SCU_SGL_COPY(os_handle, scu_sgl_list->A, os_sge);
-
- scic_cb_io_request_get_next_sge(os_handle, os_sge, &os_sge);
-
- if (os_sge != NULL) {
- SCU_SGL_COPY(os_handle, scu_sgl_list->B, os_sge);
-
- scic_cb_io_request_get_next_sge(os_handle, os_sge, &os_sge);
- } else {
- SCU_SGL_ZERO(scu_sgl_list->B);
+ struct isci_request *isci_request =
+ (struct isci_request *)sci_object_get_association(sds_request);
+ struct isci_host *isci_host = isci_request->isci_host;
+ struct sas_task *task = isci_request_access_task(isci_request);
+ struct scatterlist *sg = NULL;
+ dma_addr_t dma_addr;
+ u32 sg_idx = 0;
+ struct scu_sgl_element_pair *scu_sg = NULL;
+ struct scu_sgl_element_pair *prev_sg = NULL;
+
+ if (task->num_scatter > 0) {
+ sg = task->scatter;
+
+ while (sg) {
+ scu_sg = scic_sds_request_get_sgl_element_pair(
+ sds_request,
+ sg_idx);
+
+ SCU_SGL_COPY(scu_sg->A, sg);
+
+ sg = sg_next(sg);
+
+ if (sg) {
+ SCU_SGL_COPY(scu_sg->B, sg);
+ sg = sg_next(sg);
+ } else
+ SCU_SGL_ZERO(scu_sg->B);
+
+ if (prev_sg) {
+ dma_addr =
+ scic_io_request_get_dma_addr(
+ sds_request,
+ scu_sg);
+
+ prev_sg->next_pair_upper =
+ upper_32_bits(dma_addr);
+ prev_sg->next_pair_lower =
+ lower_32_bits(dma_addr);
+ }
+
+ prev_sg = scu_sg;
+ sg_idx++;
}
+ } else { /* handle when no sg */
+ scu_sg = scic_sds_request_get_sgl_element_pair(sds_request,
+ sg_idx);
- if (previous_pair != NULL) {
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- scu_sgl_list,
- &physical_address
- );
+ dma_addr = dma_map_single(&isci_host->pdev->dev,
+ task->scatter,
+ task->total_xfer_len,
+ task->data_dir);
- previous_pair->next_pair_upper =
- upper_32_bits(physical_address);
- previous_pair->next_pair_lower =
- lower_32_bits(physical_address);
- }
+ isci_request->zero_scatter_daddr = dma_addr;
- previous_pair = scu_sgl_list;
- sgl_pair_index++;
+ scu_sg->A.length = task->total_xfer_len;
+ scu_sg->A.address_upper = upper_32_bits(dma_addr);
+ scu_sg->A.address_lower = lower_32_bits(dma_addr);
}
- if (scu_sgl_list != NULL) {
- scu_sgl_list->next_pair_upper = 0;
- scu_sgl_list->next_pair_lower = 0;
+ if (scu_sg) {
+ scu_sg->next_pair_upper = 0;
+ scu_sg->next_pair_lower = 0;
}
}
*
*/
static void scu_ssp_reqeust_construct_task_context(
- struct scic_sds_request *this_request,
+ struct scic_sds_request *sds_request,
struct scu_task_context *task_context)
{
- dma_addr_t physical_address;
- struct scic_sds_controller *owning_controller;
+ dma_addr_t dma_addr;
+ struct scic_sds_controller *controller;
struct scic_sds_remote_device *target_device;
struct scic_sds_port *target_port;
- owning_controller = scic_sds_request_get_controller(this_request);
- target_device = scic_sds_request_get_device(this_request);
- target_port = scic_sds_request_get_port(this_request);
+ controller = scic_sds_request_get_controller(sds_request);
+ target_device = scic_sds_request_get_device(sds_request);
+ target_port = scic_sds_request_get_port(sds_request);
/* Fill in the TC with the its required data */
task_context->abort = 0;
task_context->connection_rate =
scic_remote_device_get_connection_rate(target_device);
task_context->protocol_engine_index =
- scic_sds_controller_get_protocol_engine_group(owning_controller);
+ scic_sds_controller_get_protocol_engine_group(controller);
task_context->logical_port_index =
scic_sds_port_get_index(target_port);
task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP;
task_context->context_type = SCU_TASK_CONTEXT_TYPE;
task_context->remote_node_index =
- scic_sds_remote_device_get_index(this_request->target_device);
+ scic_sds_remote_device_get_index(sds_request->target_device);
task_context->command_code = 0;
task_context->link_layer_control = 0;
/* task_context->type.ssp.tag = this_request->io_tag; */
task_context->task_phase = 0x01;
- if (this_request->was_tag_assigned_by_user) {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- | scic_sds_io_tag_get_index(this_request->io_tag)
- );
+ if (sds_request->was_tag_assigned_by_user) {
+ /*
+ * Build the task context now since we have already read
+ * the data
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) |
+ scic_sds_io_tag_get_index(sds_request->io_tag));
} else {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- /* This is not assigned because we have to wait until we get a TCi */
- );
+ /*
+ * Build the task context now since we have already read
+ * the data
+ *
+ * I/O tag index is not assigned because we have to wait
+ * until we get a TCi
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ owning_controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT));
}
- /* Copy the physical address for the command buffer to the SCU Task Context */
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- this_request->command_buffer,
- &physical_address
- );
+ /*
+ * Copy the physical address for the command buffer to the
+ * SCU Task Context
+ */
+ dma_addr = scic_io_request_get_dma_addr(sds_request,
+ sds_request->command_buffer);
- task_context->command_iu_upper =
- upper_32_bits(physical_address);
- task_context->command_iu_lower =
- lower_32_bits(physical_address);
+ task_context->command_iu_upper = upper_32_bits(dma_addr);
+ task_context->command_iu_lower = lower_32_bits(dma_addr);
- /* Copy the physical address for the response buffer to the SCU Task Context */
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- this_request->response_buffer,
- &physical_address
- );
+ /*
+ * Copy the physical address for the response buffer to the
+ * SCU Task Context
+ */
+ dma_addr = scic_io_request_get_dma_addr(sds_request,
+ sds_request->response_buffer);
- task_context->response_iu_upper =
- upper_32_bits(physical_address);
- task_context->response_iu_lower =
- lower_32_bits(physical_address);
+ task_context->response_iu_upper = upper_32_bits(dma_addr);
+ task_context->response_iu_lower = lower_32_bits(dma_addr);
}
/**
* This macro copys the SGL Element data from the host os to the hardware SGL
* elment data
*/
-#define SCU_SGL_COPY(os_handle, scu_sge, os_sge) \
+#define SCU_SGL_COPY(scu_sge, os_sge) \
{ \
- (scu_sge).length = \
- scic_cb_sge_get_length_field(os_handle, os_sge); \
+ (scu_sge).length = sg_dma_len(sg); \
(scu_sge).address_upper = \
- upper_32_bits(scic_cb_sge_get_address_field(os_handle, os_sge)); \
+ upper_32_bits(sg_dma_address(sg)); \
(scu_sge).address_lower = \
- lower_32_bits(scic_cb_sge_get_address_field(os_handle, os_sge)); \
+ lower_32_bits(sg_dma_address(sg)); \
(scu_sge).address_modifier = 0; \
}
*
*/
static void scu_smp_request_construct_task_context(
- struct scic_sds_request *this_request,
+ struct scic_sds_request *sds_request,
struct smp_request *smp_request)
{
- dma_addr_t physical_address;
- struct scic_sds_controller *owning_controller;
+ dma_addr_t dma_addr;
+ struct scic_sds_controller *controller;
struct scic_sds_remote_device *target_device;
struct scic_sds_port *target_port;
struct scu_task_context *task_context;
/* byte swap the smp request. */
- scic_word_copy_with_swap(
- this_request->command_buffer,
- (u32 *)smp_request,
- sizeof(struct smp_request) / sizeof(u32)
- );
+ scic_word_copy_with_swap(sds_request->command_buffer,
+ (u32 *)smp_request,
+ sizeof(struct smp_request) / sizeof(u32));
- task_context = scic_sds_request_get_task_context(this_request);
+ task_context = scic_sds_request_get_task_context(sds_request);
- owning_controller = scic_sds_request_get_controller(this_request);
- target_device = scic_sds_request_get_device(this_request);
- target_port = scic_sds_request_get_port(this_request);
+ controller = scic_sds_request_get_controller(sds_request);
+ target_device = scic_sds_request_get_device(sds_request);
+ target_port = scic_sds_request_get_port(sds_request);
/*
* Fill in the TC with the its required data
- * 00h */
+ * 00h
+ */
task_context->priority = 0;
task_context->initiator_request = 1;
task_context->connection_rate =
scic_remote_device_get_connection_rate(target_device);
task_context->protocol_engine_index =
- scic_sds_controller_get_protocol_engine_group(owning_controller);
+ scic_sds_controller_get_protocol_engine_group(controller);
task_context->logical_port_index =
scic_sds_port_get_index(target_port);
task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP;
task_context->context_type = SCU_TASK_CONTEXT_TYPE;
/* 04h */
- task_context->remote_node_index = this_request->target_device->rnc->remote_node_index;
+ task_context->remote_node_index =
+ sds_request->target_device->rnc->remote_node_index;
task_context->command_code = 0;
task_context->task_type = SCU_TASK_TYPE_SMP_REQUEST;
task_context->address_modifier = 0;
/* 10h */
- task_context->ssp_command_iu_length = smp_request->header.request_length;
+ task_context->ssp_command_iu_length =
+ smp_request->header.request_length;
/* 14h */
task_context->transfer_length_bytes = 0;
* 18h ~ 30h, protocol specific
* since commandIU has been build by framework at this point, we just
* copy the frist DWord from command IU to this location. */
- memcpy((void *)(&task_context->type.smp), this_request->command_buffer, sizeof(u32));
+ memcpy((void *)(&task_context->type.smp),
+ sds_request->command_buffer,
+ sizeof(u32));
/*
* 40h
- * "For SMP you could program it to zero. We would prefer that way so that
- * done code will be consistent." - Venki */
+ * "For SMP you could program it to zero. We would prefer that way
+ * so that done code will be consistent." - Venki
+ */
task_context->task_phase = 0;
- if (this_request->was_tag_assigned_by_user) {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- | scic_sds_io_tag_get_index(this_request->io_tag)
- );
+ if (sds_request->was_tag_assigned_by_user) {
+ /*
+ * Build the task context now since we have already read
+ * the data
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) |
+ scic_sds_io_tag_get_index(sds_request->io_tag));
} else {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- /* This is not assigned because we have to wait until we get a TCi */
- );
+ /*
+ * Build the task context now since we have already read
+ * the data.
+ * I/O tag index is not assigned because we have to wait
+ * until we get a TCi.
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT));
}
/*
- * Copy the physical address for the command buffer to the SCU Task Context
- * command buffer should not contain command header. */
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- ((char *)(this_request->command_buffer) + sizeof(u32)),
- &physical_address
- );
-
- task_context->command_iu_upper =
- upper_32_bits(physical_address);
- task_context->command_iu_lower =
- lower_32_bits(physical_address);
-
+ * Copy the physical address for the command buffer to the SCU Task
+ * Context command buffer should not contain command header.
+ */
+ dma_addr = scic_io_request_get_dma_addr(sds_request,
+ (char *)
+ (sds_request->command_buffer) +
+ sizeof(u32));
+
+ task_context->command_iu_upper = upper_32_bits(dma_addr);
+ task_context->command_iu_lower = lower_32_bits(dma_addr);
/* SMP response comes as UF, so no need to set response IU address. */
task_context->response_iu_upper = 0;
*
*/
void scic_sds_stp_packet_internal_request_sense_build_sgl(
- struct scic_sds_request *this_request)
+ struct scic_sds_request *sds_request)
{
void *sge;
struct scu_sgl_element_pair *scu_sgl_list = NULL;
struct scu_task_context *task_context;
- dma_addr_t physical_address;
+ dma_addr_t dma_addr;
struct sci_ssp_response_iu *rsp_iu =
- (struct sci_ssp_response_iu *)this_request->response_buffer;
+ (struct sci_ssp_response_iu *)sds_request->response_buffer;
sge = (void *)&rsp_iu->data[0];
- task_context = (struct scu_task_context *)this_request->task_context_buffer;
+ task_context =
+ (struct scu_task_context *)sds_request->task_context_buffer;
scu_sgl_list = &task_context->sgl_pair_ab;
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- ((char *)sge),
- &physical_address
- );
+ dma_addr = scic_io_request_get_dma_addr(sds_request, sge);
- scu_sgl_list->A.address_upper = sci_cb_physical_address_upper(physical_address);
- scu_sgl_list->A.address_lower = sci_cb_physical_address_lower(physical_address);
+ scu_sgl_list->A.address_upper = upper_32_bits(dma_addr);
+ scu_sgl_list->A.address_lower = lower_32_bits(dma_addr);
scu_sgl_list->A.length = task_context->transfer_length_bytes;
scu_sgl_list->A.address_modifier = 0;
* determine what is common for SSP/SMP/STP task context structures.
*/
static void scu_sata_reqeust_construct_task_context(
- struct scic_sds_request *this_request,
+ struct scic_sds_request *sds_request,
struct scu_task_context *task_context)
{
- dma_addr_t physical_address;
- struct scic_sds_controller *owning_controller;
+ dma_addr_t dma_addr;
+ struct scic_sds_controller *controller;
struct scic_sds_remote_device *target_device;
struct scic_sds_port *target_port;
- owning_controller = scic_sds_request_get_controller(this_request);
- target_device = scic_sds_request_get_device(this_request);
- target_port = scic_sds_request_get_port(this_request);
+ controller = scic_sds_request_get_controller(sds_request);
+ target_device = scic_sds_request_get_device(sds_request);
+ target_port = scic_sds_request_get_port(sds_request);
/* Fill in the TC with the its required data */
task_context->abort = 0;
task_context->connection_rate =
scic_remote_device_get_connection_rate(target_device);
task_context->protocol_engine_index =
- scic_sds_controller_get_protocol_engine_group(owning_controller);
+ scic_sds_controller_get_protocol_engine_group(controller);
task_context->logical_port_index =
scic_sds_port_get_index(target_port);
task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_STP;
task_context->context_type = SCU_TASK_CONTEXT_TYPE;
task_context->remote_node_index =
- scic_sds_remote_device_get_index(this_request->target_device);
+ scic_sds_remote_device_get_index(sds_request->target_device);
task_context->command_code = 0;
task_context->link_layer_control = 0;
(sizeof(struct sata_fis_reg_h2d) - sizeof(u32)) / sizeof(u32);
/* Set the first word of the H2D REG FIS */
- task_context->type.words[0] = *(u32 *)this_request->command_buffer;
-
- if (this_request->was_tag_assigned_by_user) {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- | scic_sds_io_tag_get_index(this_request->io_tag)
- );
+ task_context->type.words[0] = *(u32 *)sds_request->command_buffer;
+
+ if (sds_request->was_tag_assigned_by_user) {
+ /*
+ * Build the task context now since we have already read
+ * the data
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) |
+ scic_sds_io_tag_get_index(sds_request->io_tag));
} else {
- /* Build the task context now since we have already read the data */
- this_request->post_context = (
- SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
- | (
- scic_sds_controller_get_protocol_engine_group(owning_controller)
- << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
- )
- | (
- scic_sds_port_get_index(target_port)
- << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
- )
- /* This is not assigned because we have to wait until we get a TCi */
- );
+ /*
+ * Build the task context now since we have already read
+ * the data.
+ * I/O tag index is not assigned because we have to wait
+ * until we get a TCi.
+ */
+ sds_request->post_context =
+ (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC |
+ (scic_sds_controller_get_protocol_engine_group(
+ controller) <<
+ SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) |
+ (scic_sds_port_get_index(target_port) <<
+ SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT));
}
/*
- * Copy the physical address for the command buffer to the SCU Task Context
- * We must offset the command buffer by 4 bytes because the first 4 bytes are
- * transfered in the body of the TC */
- scic_cb_io_request_get_physical_address(
- scic_sds_request_get_controller(this_request),
- this_request,
- ((char *)this_request->command_buffer) + sizeof(u32),
- &physical_address
- );
-
- task_context->command_iu_upper =
- upper_32_bits(physical_address);
- task_context->command_iu_lower =
- lower_32_bits(physical_address);
+ * Copy the physical address for the command buffer to the SCU Task
+ * Context. We must offset the command buffer by 4 bytes because the
+ * first 4 bytes are transfered in the body of the TC.
+ */
+ dma_addr =
+ scic_io_request_get_dma_addr(sds_request,
+ (char *)sds_request->
+ command_buffer +
+ sizeof(u32));
+
+ task_context->command_iu_upper = upper_32_bits(dma_addr);
+ task_context->command_iu_lower = lower_32_bits(dma_addr);
/* SATA Requests do not have a response buffer */
task_context->response_iu_upper = 0;
projects / linux-2.6-microblaze.git / commitdiff