* @data: This parameter specifies the ISCI host object
*
*/
-static void isci_host_completion_routine(unsigned long data)
+void isci_host_completion_routine(unsigned long data)
{
struct isci_host *ihost = (struct isci_host *)data;
struct list_head completed_request_list;
return pcim_iomap_table(pdev)[SCI_SMU_BAR * 2] + SCI_SMU_BAR_SIZE * id;
}
-static void isci_user_parameters_get(struct sci_user_parameters *u)
-{
- int i;
-
- for (i = 0; i < SCI_MAX_PHYS; i++) {
- struct sci_phy_user_params *u_phy = &u->phys[i];
-
- u_phy->max_speed_generation = phy_gen;
-
- /* we are not exporting these for now */
- u_phy->align_insertion_frequency = 0x7f;
- u_phy->in_connection_align_insertion_frequency = 0xff;
- u_phy->notify_enable_spin_up_insertion_frequency = 0x33;
- }
-
- u->stp_inactivity_timeout = stp_inactive_to;
- u->ssp_inactivity_timeout = ssp_inactive_to;
- u->stp_max_occupancy_timeout = stp_max_occ_to;
- u->ssp_max_occupancy_timeout = ssp_max_occ_to;
- u->no_outbound_task_timeout = no_outbound_task_to;
- u->max_concurr_spinup = max_concurr_spinup;
-}
-
static void sci_controller_initial_state_enter(struct sci_base_state_machine *sm)
{
struct isci_host *ihost = container_of(sm, typeof(*ihost), sm);
[SCIC_FAILED] = {}
};
-static void sci_controller_set_default_config_parameters(struct isci_host *ihost)
-{
- /* these defaults are overridden by the platform / firmware */
- u16 index;
-
- /* Default to APC mode. */
- ihost->oem_parameters.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE;
-
- /* Default to APC mode. */
- ihost->oem_parameters.controller.max_concurr_spin_up = 1;
-
- /* Default to no SSC operation. */
- ihost->oem_parameters.controller.do_enable_ssc = false;
-
- /* Default to short cables on all phys. */
- ihost->oem_parameters.controller.cable_selection_mask = 0;
-
- /* Initialize all of the port parameter information to narrow ports. */
- for (index = 0; index < SCI_MAX_PORTS; index++) {
- ihost->oem_parameters.ports[index].phy_mask = 0;
- }
-
- /* Initialize all of the phy parameter information. */
- for (index = 0; index < SCI_MAX_PHYS; index++) {
- /* Default to 3G (i.e. Gen 2). */
- ihost->user_parameters.phys[index].max_speed_generation =
- SCIC_SDS_PARM_GEN2_SPEED;
-
- /* the frequencies cannot be 0 */
- ihost->user_parameters.phys[index].align_insertion_frequency = 0x7f;
- ihost->user_parameters.phys[index].in_connection_align_insertion_frequency = 0xff;
- ihost->user_parameters.phys[index].notify_enable_spin_up_insertion_frequency = 0x33;
-
- /*
- * Previous Vitesse based expanders had a arbitration issue that
- * is worked around by having the upper 32-bits of SAS address
- * with a value greater then the Vitesse company identifier.
- * Hence, usage of 0x5FCFFFFF. */
- ihost->oem_parameters.phys[index].sas_address.low = 0x1 + ihost->id;
- ihost->oem_parameters.phys[index].sas_address.high = 0x5FCFFFFF;
- }
-
- ihost->user_parameters.stp_inactivity_timeout = 5;
- ihost->user_parameters.ssp_inactivity_timeout = 5;
- ihost->user_parameters.stp_max_occupancy_timeout = 5;
- ihost->user_parameters.ssp_max_occupancy_timeout = 20;
- ihost->user_parameters.no_outbound_task_timeout = 2;
-}
-
static void controller_timeout(unsigned long data)
{
struct sci_timer *tmr = (struct sci_timer *)data;
sci_init_timer(&ihost->timer, controller_timeout);
- /* Initialize the User and OEM parameters to default values. */
- sci_controller_set_default_config_parameters(ihost);
-
return sci_controller_reset(ihost);
}
return 0;
}
-static enum sci_status sci_oem_parameters_set(struct isci_host *ihost)
-{
- u32 state = ihost->sm.current_state_id;
- struct isci_pci_info *pci_info = to_pci_info(ihost->pdev);
-
- if (state == SCIC_RESET ||
- state == SCIC_INITIALIZING ||
- state == SCIC_INITIALIZED) {
- u8 oem_version = pci_info->orom ? pci_info->orom->hdr.version :
- ISCI_ROM_VER_1_0;
-
- if (sci_oem_parameters_validate(&ihost->oem_parameters,
- oem_version))
- return SCI_FAILURE_INVALID_PARAMETER_VALUE;
-
- return SCI_SUCCESS;
- }
-
- return SCI_FAILURE_INVALID_STATE;
-}
-
static u8 max_spin_up(struct isci_host *ihost)
{
if (ihost->user_parameters.max_concurr_spinup)
return result;
}
-static enum sci_status sci_user_parameters_set(struct isci_host *ihost,
- struct sci_user_parameters *sci_parms)
-{
- u32 state = ihost->sm.current_state_id;
-
- if (state == SCIC_RESET ||
- state == SCIC_INITIALIZING ||
- state == SCIC_INITIALIZED) {
- u16 index;
-
- /*
- * Validate the user parameters. If they are not legal, then
- * return a failure.
- */
- for (index = 0; index < SCI_MAX_PHYS; index++) {
- struct sci_phy_user_params *user_phy;
-
- user_phy = &sci_parms->phys[index];
-
- if (!((user_phy->max_speed_generation <=
- SCIC_SDS_PARM_MAX_SPEED) &&
- (user_phy->max_speed_generation >
- SCIC_SDS_PARM_NO_SPEED)))
- return SCI_FAILURE_INVALID_PARAMETER_VALUE;
-
- if (user_phy->in_connection_align_insertion_frequency <
- 3)
- return SCI_FAILURE_INVALID_PARAMETER_VALUE;
-
- if ((user_phy->in_connection_align_insertion_frequency <
- 3) ||
- (user_phy->align_insertion_frequency == 0) ||
- (user_phy->
- notify_enable_spin_up_insertion_frequency ==
- 0))
- return SCI_FAILURE_INVALID_PARAMETER_VALUE;
- }
-
- if ((sci_parms->stp_inactivity_timeout == 0) ||
- (sci_parms->ssp_inactivity_timeout == 0) ||
- (sci_parms->stp_max_occupancy_timeout == 0) ||
- (sci_parms->ssp_max_occupancy_timeout == 0) ||
- (sci_parms->no_outbound_task_timeout == 0))
- return SCI_FAILURE_INVALID_PARAMETER_VALUE;
-
- memcpy(&ihost->user_parameters, sci_parms, sizeof(*sci_parms));
-
- return SCI_SUCCESS;
- }
-
- return SCI_FAILURE_INVALID_STATE;
-}
-
-static int sci_controller_mem_init(struct isci_host *ihost)
+static int sci_controller_dma_alloc(struct isci_host *ihost)
{
struct device *dev = &ihost->pdev->dev;
- dma_addr_t dma;
size_t size;
- int err;
+ int i;
+
+ /* detect re-initialization */
+ if (ihost->completion_queue)
+ return 0;
size = SCU_MAX_COMPLETION_QUEUE_ENTRIES * sizeof(u32);
- ihost->completion_queue = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL);
+ ihost->completion_queue = dmam_alloc_coherent(dev, size, &ihost->cq_dma,
+ GFP_KERNEL);
if (!ihost->completion_queue)
return -ENOMEM;
- writel(lower_32_bits(dma), &ihost->smu_registers->completion_queue_lower);
- writel(upper_32_bits(dma), &ihost->smu_registers->completion_queue_upper);
-
size = ihost->remote_node_entries * sizeof(union scu_remote_node_context);
- ihost->remote_node_context_table = dmam_alloc_coherent(dev, size, &dma,
+ ihost->remote_node_context_table = dmam_alloc_coherent(dev, size, &ihost->rnc_dma,
GFP_KERNEL);
+
if (!ihost->remote_node_context_table)
return -ENOMEM;
- writel(lower_32_bits(dma), &ihost->smu_registers->remote_node_context_lower);
- writel(upper_32_bits(dma), &ihost->smu_registers->remote_node_context_upper);
-
size = ihost->task_context_entries * sizeof(struct scu_task_context),
- ihost->task_context_table = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL);
+ ihost->task_context_table = dmam_alloc_coherent(dev, size, &ihost->tc_dma,
+ GFP_KERNEL);
if (!ihost->task_context_table)
return -ENOMEM;
- ihost->task_context_dma = dma;
- writel(lower_32_bits(dma), &ihost->smu_registers->host_task_table_lower);
- writel(upper_32_bits(dma), &ihost->smu_registers->host_task_table_upper);
+ size = SCI_UFI_TOTAL_SIZE;
+ ihost->ufi_buf = dmam_alloc_coherent(dev, size, &ihost->ufi_dma, GFP_KERNEL);
+ if (!ihost->ufi_buf)
+ return -ENOMEM;
+
+ for (i = 0; i < SCI_MAX_IO_REQUESTS; i++) {
+ struct isci_request *ireq;
+ dma_addr_t dma;
+
+ ireq = dmam_alloc_coherent(dev, sizeof(*ireq), &dma, GFP_KERNEL);
+ if (!ireq)
+ return -ENOMEM;
+
+ ireq->tc = &ihost->task_context_table[i];
+ ireq->owning_controller = ihost;
+ spin_lock_init(&ireq->state_lock);
+ ireq->request_daddr = dma;
+ ireq->isci_host = ihost;
+ ihost->reqs[i] = ireq;
+ }
+
+ return 0;
+}
+
+static int sci_controller_mem_init(struct isci_host *ihost)
+{
+ int err = sci_controller_dma_alloc(ihost);
- err = sci_unsolicited_frame_control_construct(ihost);
if (err)
return err;
+ writel(lower_32_bits(ihost->cq_dma), &ihost->smu_registers->completion_queue_lower);
+ writel(upper_32_bits(ihost->cq_dma), &ihost->smu_registers->completion_queue_upper);
+
+ writel(lower_32_bits(ihost->rnc_dma), &ihost->smu_registers->remote_node_context_lower);
+ writel(upper_32_bits(ihost->rnc_dma), &ihost->smu_registers->remote_node_context_upper);
+
+ writel(lower_32_bits(ihost->tc_dma), &ihost->smu_registers->host_task_table_lower);
+ writel(upper_32_bits(ihost->tc_dma), &ihost->smu_registers->host_task_table_upper);
+
+ sci_unsolicited_frame_control_construct(ihost);
+
/*
* Inform the silicon as to the location of the UF headers and
* address table.
return 0;
}
+/**
+ * isci_host_init - (re-)initialize hardware and internal (private) state
+ * @ihost: host to init
+ *
+ * Any public facing objects (like asd_sas_port, and asd_sas_phys), or
+ * one-time initialization objects like locks and waitqueues, are
+ * not touched (they are initialized in isci_host_alloc)
+ */
int isci_host_init(struct isci_host *ihost)
{
- int err = 0, i;
+ int i, err;
enum sci_status status;
- struct sci_user_parameters sci_user_params;
- struct isci_pci_info *pci_info = to_pci_info(ihost->pdev);
-
- spin_lock_init(&ihost->scic_lock);
- init_waitqueue_head(&ihost->eventq);
-
- status = sci_controller_construct(ihost, scu_base(ihost),
- smu_base(ihost));
+ status = sci_controller_construct(ihost, scu_base(ihost), smu_base(ihost));
if (status != SCI_SUCCESS) {
dev_err(&ihost->pdev->dev,
"%s: sci_controller_construct failed - status = %x\n",
return -ENODEV;
}
- ihost->sas_ha.dev = &ihost->pdev->dev;
- ihost->sas_ha.lldd_ha = ihost;
-
- /*
- * grab initial values stored in the controller object for OEM and USER
- * parameters
- */
- isci_user_parameters_get(&sci_user_params);
- status = sci_user_parameters_set(ihost, &sci_user_params);
- if (status != SCI_SUCCESS) {
- dev_warn(&ihost->pdev->dev,
- "%s: sci_user_parameters_set failed\n",
- __func__);
- return -ENODEV;
- }
-
- /* grab any OEM parameters specified in orom */
- if (pci_info->orom) {
- status = isci_parse_oem_parameters(&ihost->oem_parameters,
- pci_info->orom,
- ihost->id);
- if (status != SCI_SUCCESS) {
- dev_warn(&ihost->pdev->dev,
- "parsing firmware oem parameters failed\n");
- return -EINVAL;
- }
- }
-
- status = sci_oem_parameters_set(ihost);
- if (status != SCI_SUCCESS) {
- dev_warn(&ihost->pdev->dev,
- "%s: sci_oem_parameters_set failed\n",
- __func__);
- return -ENODEV;
- }
-
- tasklet_init(&ihost->completion_tasklet,
- isci_host_completion_routine, (unsigned long)ihost);
-
- INIT_LIST_HEAD(&ihost->requests_to_complete);
- INIT_LIST_HEAD(&ihost->requests_to_errorback);
-
spin_lock_irq(&ihost->scic_lock);
status = sci_controller_initialize(ihost);
spin_unlock_irq(&ihost->scic_lock);
if (err)
return err;
- for (i = 0; i < SCI_MAX_PORTS; i++) {
- struct isci_port *iport = &ihost->ports[i];
-
- INIT_LIST_HEAD(&iport->remote_dev_list);
- iport->isci_host = ihost;
- }
-
- for (i = 0; i < SCI_MAX_PHYS; i++)
- isci_phy_init(&ihost->phys[i], ihost, i);
-
/* enable sgpio */
writel(1, &ihost->scu_registers->peg0.sgpio.interface_control);
for (i = 0; i < isci_gpio_count(ihost); i++)
writel(SGPIO_HW_CONTROL, &ihost->scu_registers->peg0.sgpio.output_data_select[i]);
writel(0, &ihost->scu_registers->peg0.sgpio.vendor_specific_code);
- for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) {
- struct isci_remote_device *idev = &ihost->devices[i];
-
- INIT_LIST_HEAD(&idev->reqs_in_process);
- INIT_LIST_HEAD(&idev->node);
- }
-
- for (i = 0; i < SCI_MAX_IO_REQUESTS; i++) {
- struct isci_request *ireq;
- dma_addr_t dma;
-
- ireq = dmam_alloc_coherent(&ihost->pdev->dev,
- sizeof(struct isci_request), &dma,
- GFP_KERNEL);
- if (!ireq)
- return -ENOMEM;
-
- ireq->tc = &ihost->task_context_table[i];
- ireq->owning_controller = ihost;
- spin_lock_init(&ireq->state_lock);
- ireq->request_daddr = dma;
- ireq->isci_host = ihost;
- ihost->reqs[i] = ireq;
- }
-
return 0;
}
struct sci_power_control power_control;
u8 io_request_sequence[SCI_MAX_IO_REQUESTS];
struct scu_task_context *task_context_table;
- dma_addr_t task_context_dma;
+ dma_addr_t tc_dma;
union scu_remote_node_context *remote_node_context_table;
+ dma_addr_t rnc_dma;
u32 *completion_queue;
+ dma_addr_t cq_dma;
u32 completion_queue_get;
u32 logical_port_entries;
u32 remote_node_entries;
u32 task_context_entries;
+ void *ufi_buf;
+ dma_addr_t ufi_dma;
struct sci_unsolicited_frame_control uf_control;
/* phy startup */
struct isci_remote_device *idev,
u16 node_id);
-struct isci_request *sci_request_by_tag(struct isci_host *ihost,
- u16 io_tag);
-
-void sci_controller_power_control_queue_insert(
- struct isci_host *ihost,
- struct isci_phy *iphy);
-
-void sci_controller_power_control_queue_remove(
- struct isci_host *ihost,
- struct isci_phy *iphy);
-
-void sci_controller_link_up(
- struct isci_host *ihost,
- struct isci_port *iport,
- struct isci_phy *iphy);
-
-void sci_controller_link_down(
- struct isci_host *ihost,
- struct isci_port *iport,
- struct isci_phy *iphy);
-
-void sci_controller_remote_device_stopped(
- struct isci_host *ihost,
- struct isci_remote_device *idev);
-
-void sci_controller_copy_task_context(
- struct isci_host *ihost,
- struct isci_request *ireq);
-
-void sci_controller_register_setup(struct isci_host *ihost);
+struct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag);
+void sci_controller_power_control_queue_insert(struct isci_host *ihost,
+ struct isci_phy *iphy);
+void sci_controller_power_control_queue_remove(struct isci_host *ihost,
+ struct isci_phy *iphy);
+void sci_controller_link_up(struct isci_host *ihost, struct isci_port *iport,
+ struct isci_phy *iphy);
+void sci_controller_link_down(struct isci_host *ihost, struct isci_port *iport,
+ struct isci_phy *iphy);
+void sci_controller_remote_device_stopped(struct isci_host *ihost,
+ struct isci_remote_device *idev);
enum sci_status sci_controller_continue_io(struct isci_request *ireq);
int isci_host_scan_finished(struct Scsi_Host *, unsigned long);
void isci_tci_free(struct isci_host *ihost, u16 tci);
int isci_host_init(struct isci_host *);
-
-void isci_host_init_controller_names(
- struct isci_host *isci_host,
- unsigned int controller_idx);
-
-void isci_host_deinit(
- struct isci_host *);
-
-void isci_host_port_link_up(
- struct isci_host *,
- struct isci_port *,
- struct isci_phy *);
-int isci_host_dev_found(struct domain_device *);
-
-void isci_host_remote_device_start_complete(
- struct isci_host *,
- struct isci_remote_device *,
- enum sci_status);
-
-void sci_controller_disable_interrupts(
- struct isci_host *ihost);
+void isci_host_completion_routine(unsigned long data);
+void isci_host_deinit(struct isci_host *);
+void sci_controller_disable_interrupts(struct isci_host *ihost);
enum sci_status sci_controller_start_io(
struct isci_host *ihost,
return err;
}
+static void isci_user_parameters_get(struct sci_user_parameters *u)
+{
+ int i;
+
+ for (i = 0; i < SCI_MAX_PHYS; i++) {
+ struct sci_phy_user_params *u_phy = &u->phys[i];
+
+ u_phy->max_speed_generation = phy_gen;
+
+ /* we are not exporting these for now */
+ u_phy->align_insertion_frequency = 0x7f;
+ u_phy->in_connection_align_insertion_frequency = 0xff;
+ u_phy->notify_enable_spin_up_insertion_frequency = 0x33;
+ }
+
+ u->stp_inactivity_timeout = stp_inactive_to;
+ u->ssp_inactivity_timeout = ssp_inactive_to;
+ u->stp_max_occupancy_timeout = stp_max_occ_to;
+ u->ssp_max_occupancy_timeout = ssp_max_occ_to;
+ u->no_outbound_task_timeout = no_outbound_task_to;
+ u->max_concurr_spinup = max_concurr_spinup;
+}
+
+static enum sci_status sci_user_parameters_set(struct isci_host *ihost,
+ struct sci_user_parameters *sci_parms)
+{
+ u16 index;
+
+ /*
+ * Validate the user parameters. If they are not legal, then
+ * return a failure.
+ */
+ for (index = 0; index < SCI_MAX_PHYS; index++) {
+ struct sci_phy_user_params *u;
+
+ u = &sci_parms->phys[index];
+
+ if (!((u->max_speed_generation <= SCIC_SDS_PARM_MAX_SPEED) &&
+ (u->max_speed_generation > SCIC_SDS_PARM_NO_SPEED)))
+ return SCI_FAILURE_INVALID_PARAMETER_VALUE;
+
+ if (u->in_connection_align_insertion_frequency < 3)
+ return SCI_FAILURE_INVALID_PARAMETER_VALUE;
+
+ if ((u->in_connection_align_insertion_frequency < 3) ||
+ (u->align_insertion_frequency == 0) ||
+ (u->notify_enable_spin_up_insertion_frequency == 0))
+ return SCI_FAILURE_INVALID_PARAMETER_VALUE;
+ }
+
+ if ((sci_parms->stp_inactivity_timeout == 0) ||
+ (sci_parms->ssp_inactivity_timeout == 0) ||
+ (sci_parms->stp_max_occupancy_timeout == 0) ||
+ (sci_parms->ssp_max_occupancy_timeout == 0) ||
+ (sci_parms->no_outbound_task_timeout == 0))
+ return SCI_FAILURE_INVALID_PARAMETER_VALUE;
+
+ memcpy(&ihost->user_parameters, sci_parms, sizeof(*sci_parms));
+
+ return SCI_SUCCESS;
+}
+
+static void sci_oem_defaults(struct isci_host *ihost)
+{
+ /* these defaults are overridden by the platform / firmware */
+ struct sci_user_parameters *user = &ihost->user_parameters;
+ struct sci_oem_params *oem = &ihost->oem_parameters;
+ int i;
+
+ /* Default to APC mode. */
+ oem->controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE;
+
+ /* Default to APC mode. */
+ oem->controller.max_concurr_spin_up = 1;
+
+ /* Default to no SSC operation. */
+ oem->controller.do_enable_ssc = false;
+
+ /* Default to short cables on all phys. */
+ oem->controller.cable_selection_mask = 0;
+
+ /* Initialize all of the port parameter information to narrow ports. */
+ for (i = 0; i < SCI_MAX_PORTS; i++)
+ oem->ports[i].phy_mask = 0;
+
+ /* Initialize all of the phy parameter information. */
+ for (i = 0; i < SCI_MAX_PHYS; i++) {
+ /* Default to 3G (i.e. Gen 2). */
+ user->phys[i].max_speed_generation = SCIC_SDS_PARM_GEN2_SPEED;
+
+ /* the frequencies cannot be 0 */
+ user->phys[i].align_insertion_frequency = 0x7f;
+ user->phys[i].in_connection_align_insertion_frequency = 0xff;
+ user->phys[i].notify_enable_spin_up_insertion_frequency = 0x33;
+
+ /* Previous Vitesse based expanders had a arbitration issue that
+ * is worked around by having the upper 32-bits of SAS address
+ * with a value greater then the Vitesse company identifier.
+ * Hence, usage of 0x5FCFFFFF.
+ */
+ oem->phys[i].sas_address.low = 0x1 + ihost->id;
+ oem->phys[i].sas_address.high = 0x5FCFFFFF;
+ }
+
+ user->stp_inactivity_timeout = 5;
+ user->ssp_inactivity_timeout = 5;
+ user->stp_max_occupancy_timeout = 5;
+ user->ssp_max_occupancy_timeout = 20;
+ user->no_outbound_task_timeout = 2;
+}
+
static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id)
{
- struct isci_host *isci_host;
+ struct isci_orom *orom = to_pci_info(pdev)->orom;
+ struct sci_user_parameters sci_user_params;
+ u8 oem_version = ISCI_ROM_VER_1_0;
+ struct isci_host *ihost;
struct Scsi_Host *shost;
- int err;
+ int err, i;
- isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL);
- if (!isci_host)
+ ihost = devm_kzalloc(&pdev->dev, sizeof(*ihost), GFP_KERNEL);
+ if (!ihost)
+ return NULL;
+
+ ihost->pdev = pdev;
+ ihost->id = id;
+ spin_lock_init(&ihost->scic_lock);
+ init_waitqueue_head(&ihost->eventq);
+ ihost->sas_ha.dev = &ihost->pdev->dev;
+ ihost->sas_ha.lldd_ha = ihost;
+ tasklet_init(&ihost->completion_tasklet,
+ isci_host_completion_routine, (unsigned long)ihost);
+
+ /* validate module parameters */
+ /* TODO: kill struct sci_user_parameters and reference directly */
+ sci_oem_defaults(ihost);
+ isci_user_parameters_get(&sci_user_params);
+ if (sci_user_parameters_set(ihost, &sci_user_params)) {
+ dev_warn(&pdev->dev,
+ "%s: sci_user_parameters_set failed\n", __func__);
+ return NULL;
+ }
+
+ /* sanity check platform (or 'firmware') oem parameters */
+ if (orom) {
+ if (id < 0 || id >= SCI_MAX_CONTROLLERS || id > orom->hdr.num_elements) {
+ dev_warn(&pdev->dev, "parsing firmware oem parameters failed\n");
+ return NULL;
+ }
+ ihost->oem_parameters = orom->ctrl[id];
+ oem_version = orom->hdr.version;
+ }
+
+ /* validate oem parameters (platform, firmware, or built-in defaults) */
+ if (sci_oem_parameters_validate(&ihost->oem_parameters, oem_version)) {
+ dev_warn(&pdev->dev, "oem parameter validation failed\n");
return NULL;
+ }
+
+ INIT_LIST_HEAD(&ihost->requests_to_complete);
+ INIT_LIST_HEAD(&ihost->requests_to_errorback);
+ for (i = 0; i < SCI_MAX_PORTS; i++) {
+ struct isci_port *iport = &ihost->ports[i];
+
+ INIT_LIST_HEAD(&iport->remote_dev_list);
+ iport->isci_host = ihost;
+ }
- isci_host->pdev = pdev;
- isci_host->id = id;
+ for (i = 0; i < SCI_MAX_PHYS; i++)
+ isci_phy_init(&ihost->phys[i], ihost, i);
+
+ for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) {
+ struct isci_remote_device *idev = &ihost->devices[i];
+
+ INIT_LIST_HEAD(&idev->reqs_in_process);
+ INIT_LIST_HEAD(&idev->node);
+ }
shost = scsi_host_alloc(&isci_sht, sizeof(void *));
if (!shost)
return NULL;
- isci_host->shost = shost;
+ ihost->shost = shost;
dev_info(&pdev->dev, "%sSCU controller %d: phy 3-0 cables: "
"{%s, %s, %s, %s}\n",
- (is_cable_select_overridden() ? "* " : ""), isci_host->id,
- lookup_cable_names(decode_cable_selection(isci_host, 3)),
- lookup_cable_names(decode_cable_selection(isci_host, 2)),
- lookup_cable_names(decode_cable_selection(isci_host, 1)),
- lookup_cable_names(decode_cable_selection(isci_host, 0)));
+ (is_cable_select_overridden() ? "* " : ""), ihost->id,
+ lookup_cable_names(decode_cable_selection(ihost, 3)),
+ lookup_cable_names(decode_cable_selection(ihost, 2)),
+ lookup_cable_names(decode_cable_selection(ihost, 1)),
+ lookup_cable_names(decode_cable_selection(ihost, 0)));
- err = isci_host_init(isci_host);
+ err = isci_host_init(ihost);
if (err)
goto err_shost;
- SHOST_TO_SAS_HA(shost) = &isci_host->sas_ha;
- isci_host->sas_ha.core.shost = shost;
+ SHOST_TO_SAS_HA(shost) = &ihost->sas_ha;
+ ihost->sas_ha.core.shost = shost;
shost->transportt = isci_transport_template;
shost->max_id = ~0;
if (err)
goto err_shost;
- err = isci_register_sas_ha(isci_host);
+ err = isci_register_sas_ha(ihost);
if (err)
goto err_shost_remove;
- return isci_host;
+ return ihost;
err_shost_remove:
scsi_remove_host(shost);
return rom;
}
-enum sci_status isci_parse_oem_parameters(struct sci_oem_params *oem,
- struct isci_orom *orom, int scu_index)
-{
- /* check for valid inputs */
- if (scu_index < 0 || scu_index >= SCI_MAX_CONTROLLERS ||
- scu_index > orom->hdr.num_elements || !oem)
- return -EINVAL;
-
- *oem = orom->ctrl[scu_index];
- return 0;
-}
-
struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw)
{
struct isci_orom *orom = NULL, *data;
struct isci_orom;
struct isci_orom *isci_request_oprom(struct pci_dev *pdev);
-enum sci_status isci_parse_oem_parameters(struct sci_oem_params *oem,
- struct isci_orom *orom, int scu_index);
struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw);
struct isci_orom *isci_get_efi_var(struct pci_dev *pdev);
if (idx == 0) {
offset = (void *) &ireq->tc->sgl_pair_ab -
(void *) &ihost->task_context_table[0];
- return ihost->task_context_dma + offset;
+ return ihost->tc_dma + offset;
} else if (idx == 1) {
offset = (void *) &ireq->tc->sgl_pair_cd -
(void *) &ihost->task_context_table[0];
- return ihost->task_context_dma + offset;
+ return ihost->tc_dma + offset;
}
return sci_io_request_get_dma_addr(ireq, &ireq->sg_table[idx - 2]);
#include "unsolicited_frame_control.h"
#include "registers.h"
-int sci_unsolicited_frame_control_construct(struct isci_host *ihost)
+void sci_unsolicited_frame_control_construct(struct isci_host *ihost)
{
struct sci_unsolicited_frame_control *uf_control = &ihost->uf_control;
struct sci_unsolicited_frame *uf;
- u32 buf_len, header_len, i;
- dma_addr_t dma;
- size_t size;
- void *virt;
-
- /*
- * Prepare all of the memory sizes for the UF headers, UF address
- * table, and UF buffers themselves.
- */
- buf_len = SCU_MAX_UNSOLICITED_FRAMES * SCU_UNSOLICITED_FRAME_BUFFER_SIZE;
- header_len = SCU_MAX_UNSOLICITED_FRAMES * sizeof(struct scu_unsolicited_frame_header);
- size = buf_len + header_len + SCU_MAX_UNSOLICITED_FRAMES * sizeof(uf_control->address_table.array[0]);
+ dma_addr_t dma = ihost->ufi_dma;
+ void *virt = ihost->ufi_buf;
+ int i;
/*
* The Unsolicited Frame buffers are set at the start of the UF
* memory descriptor entry. The headers and address table will be
* placed after the buffers.
*/
- virt = dmam_alloc_coherent(&ihost->pdev->dev, size, &dma, GFP_KERNEL);
- if (!virt)
- return -ENOMEM;
/*
* Program the location of the UF header table into the SCU.
* headers, since we program the UF address table pointers to
* NULL.
*/
- uf_control->headers.physical_address = dma + buf_len;
- uf_control->headers.array = virt + buf_len;
+ uf_control->headers.physical_address = dma + SCI_UFI_BUF_SIZE;
+ uf_control->headers.array = virt + SCI_UFI_BUF_SIZE;
/*
* Program the location of the UF address table into the SCU.
* byte boundary already due to above programming headers being on a
* 64-bit boundary and headers are on a 64-bytes in size.
*/
- uf_control->address_table.physical_address = dma + buf_len + header_len;
- uf_control->address_table.array = virt + buf_len + header_len;
+ uf_control->address_table.physical_address = dma + SCI_UFI_BUF_SIZE + SCI_UFI_HDR_SIZE;
+ uf_control->address_table.array = virt + SCI_UFI_BUF_SIZE + SCI_UFI_HDR_SIZE;
uf_control->get = 0;
/*
virt += SCU_UNSOLICITED_FRAME_BUFFER_SIZE;
dma += SCU_UNSOLICITED_FRAME_BUFFER_SIZE;
}
-
- return 0;
}
enum sci_status sci_unsolicited_frame_control_get_header(struct sci_unsolicited_frame_control *uf_control,
};
+#define SCI_UFI_BUF_SIZE (SCU_MAX_UNSOLICITED_FRAMES * SCU_UNSOLICITED_FRAME_BUFFER_SIZE)
+#define SCI_UFI_HDR_SIZE (SCU_MAX_UNSOLICITED_FRAMES * sizeof(struct scu_unsolicited_frame_header))
+#define SCI_UFI_TOTAL_SIZE (SCI_UFI_BUF_SIZE + SCI_UFI_HDR_SIZE + SCU_MAX_UNSOLICITED_FRAMES * sizeof(u64))
+
struct isci_host;
-int sci_unsolicited_frame_control_construct(struct isci_host *ihost);
+void sci_unsolicited_frame_control_construct(struct isci_host *ihost);
enum sci_status sci_unsolicited_frame_control_get_header(
struct sci_unsolicited_frame_control *uf_control,
projects / ~andy / linux / commitdiff