From: Dan Williams Date: Thu, 31 Mar 2011 20:10:44 +0000 (-0700) Subject: isci: fix fragile/conditional isci_host lookups X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4393aa4e6b9517a666f0ef6b774fd421a9dc4c68;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git isci: fix fragile/conditional isci_host lookups A domain_device can always reference back to ->lldd_ha unlike local lldd structures. Fix up cases where the driver uses local objects to look up the isci_host. This also changes the calling conventions of some routines to expect a valid isci_host parameter rather than re-lookup the pointer on entry. Incidentally cleans up some macros that are longer to type than the open-coded equivalent: isci_host_from_sas_ha isci_dev_from_domain_dev Signed-off-by: Dan Williams --- diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 79515be5f7c1..66449593aa8c 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -129,7 +129,7 @@ void isci_host_start_complete(struct isci_host *ihost, enum sci_status completio int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) { - struct isci_host *ihost = isci_host_from_sas_ha(SHOST_TO_SAS_HA(shost)); + struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; if (test_bit(IHOST_START_PENDING, &ihost->flags)) return 0; @@ -149,7 +149,7 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) void isci_host_scan_start(struct Scsi_Host *shost) { - struct isci_host *ihost = isci_host_from_sas_ha(SHOST_TO_SAS_HA(shost)); + struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; struct scic_sds_controller *scic = ihost->core_controller; unsigned long tmo = scic_controller_get_suggested_start_timeout(scic); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index d012b69d8d61..8372094ef5ad 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -233,15 +233,10 @@ static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_rem wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags)); } -/** - * isci_host_from_sas_ha() - This accessor retrieves the isci_host object - * reference from the Linux sas_ha_struct reference. - * @ha_struct,: This parameter points to the Linux sas_ha_struct object - * - * A reference to the associated isci_host structure. - */ -#define isci_host_from_sas_ha(ha_struct) \ - ((struct isci_host *)(ha_struct)->lldd_ha) +static inline struct isci_host *dev_to_ihost(struct domain_device *dev) +{ + return dev->port->ha->lldd_ha; +} /** * isci_host_scan_finished() - diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index decc0c05a3dd..9e081a4c8a3c 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -163,7 +163,7 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, return -ENODEV; /* Perform the port reset. */ - ret = isci_port_perform_hard_reset(iport, iphy); + ret = isci_port_perform_hard_reset(ihost, iport, iphy); break; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 74dc96dc6b17..b675a94f4a73 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -400,55 +400,43 @@ void isci_port_hard_reset_complete(struct isci_port *isci_port, complete_all(&isci_port->hard_reset_complete); } -/** - * isci_port_perform_hard_reset() - This function is one of the SAS Domain - * Template functions. This is a phy management function. - * @isci_port: - * @isci_phy: - * - * status, TMF_RESP_FUNC_COMPLETE indicates success. - */ -int isci_port_perform_hard_reset( - struct isci_port *isci_port, - struct isci_phy *isci_phy) + +int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy) { + unsigned long flags; enum sci_status status; int ret = TMF_RESP_FUNC_COMPLETE; - unsigned long flags; + dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", + __func__, iport); - dev_dbg(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p\n", - __func__, isci_port); - - BUG_ON(isci_port == NULL); - - init_completion(&isci_port->hard_reset_complete); + init_completion(&iport->hard_reset_complete); - spin_lock_irqsave(&isci_port->isci_host->scic_lock, flags); + spin_lock_irqsave(&ihost->scic_lock, flags); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(isci_port->sci_port_handle, + status = scic_port_hard_reset(iport->sci_port_handle, ISCI_PORT_RESET_TIMEOUT); - spin_unlock_irqrestore(&isci_port->isci_host->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); if (status == SCI_SUCCESS) { - wait_for_completion(&isci_port->hard_reset_complete); + wait_for_completion(&iport->hard_reset_complete); - dev_dbg(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; hard reset completion\n", - __func__, isci_port); + dev_dbg(&ihost->pdev->dev, + "%s: iport = %p; hard reset completion\n", + __func__, iport); - if (isci_port->hard_reset_status != SCI_SUCCESS) + if (iport->hard_reset_status != SCI_SUCCESS) ret = TMF_RESP_FUNC_FAILED; } else { ret = TMF_RESP_FUNC_FAILED; - dev_err(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; scic_port_hard_reset call" + dev_err(&ihost->pdev->dev, + "%s: iport = %p; scic_port_hard_reset call" " failed 0x%x\n", - __func__, isci_port, status); + __func__, iport, status); } @@ -456,19 +444,12 @@ int isci_port_perform_hard_reset( * the same as link failures on all phys in the port. */ if (ret != TMF_RESP_FUNC_COMPLETE) { - BUG_ON(isci_port->isci_host == NULL); - - dev_err(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; hard reset failed " + dev_err(&ihost->pdev->dev, + "%s: iport = %p; hard reset failed " "(0x%x) - sending link down to libsas for phy %p\n", - __func__, - isci_port, - isci_port->hard_reset_status, - isci_phy); - - isci_port_link_down(isci_port->isci_host, - isci_phy, - isci_port); + __func__, iport, iport->hard_reset_status, iphy); + + isci_port_link_down(ihost, iphy, iport); } return ret; @@ -491,8 +472,7 @@ void isci_port_invalid_link_up(struct scic_sds_controller *scic, struct scic_sds_port *sci_port, struct scic_sds_phy *phy) { - struct isci_host *ihost = - (struct isci_host *)sci_object_get_association(scic); + struct isci_host *ihost = sci_object_get_association(scic); dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index dfdd12a0f68e..76546fd5b7d0 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -143,9 +143,8 @@ void isci_port_hard_reset_complete( struct isci_port *isci_port, enum sci_status completion_status); -int isci_port_perform_hard_reset( - struct isci_port *isci_port_ptr, - struct isci_phy *isci_phy_ptr); +int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy); void isci_port_invalid_link_up( struct scic_sds_controller *scic, diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 0fdaa6d62c1b..ab638ec5881c 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -218,33 +218,20 @@ static enum sci_status isci_remote_device_construct( return status; } - -/** - * isci_remote_device_nuke_requests() - This function terminates all requests - * for a given remote device. - * @isci_device: This parameter specifies the remote device - * - */ -void isci_remote_device_nuke_requests( - struct isci_remote_device *isci_device) +void isci_remote_device_nuke_requests(struct isci_host *ihost, struct isci_remote_device *idev) { DECLARE_COMPLETION_ONSTACK(aborted_task_completion); - struct isci_host *isci_host; - isci_host = isci_device->isci_port->isci_host; - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p\n", __func__, isci_device); + dev_dbg(&ihost->pdev->dev, + "%s: idev = %p\n", __func__, idev); /* Cleanup all requests pending for this device. */ - isci_terminate_pending_requests(isci_host, isci_device, terminating); + isci_terminate_pending_requests(ihost, idev, terminating); - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p, done\n", __func__, isci_device); + dev_dbg(&ihost->pdev->dev, + "%s: idev = %p, done\n", __func__, idev); } - - /** * This function builds the isci_remote_device when a libsas dev_found message * is received. @@ -380,7 +367,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem isci_remote_device_change_state(idev, isci_stopping); /* Kill all outstanding requests. */ - isci_remote_device_nuke_requests(idev); + isci_remote_device_nuke_requests(ihost, idev); set_bit(IDEV_STOP_PENDING, &idev->flags); @@ -409,7 +396,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem */ void isci_remote_device_gone(struct domain_device *dev) { - struct isci_host *ihost = dev->port->ha->lldd_ha; + struct isci_host *ihost = dev_to_ihost(dev); struct isci_remote_device *idev = dev->lldd_dev; dev_dbg(&ihost->pdev->dev, @@ -431,7 +418,7 @@ void isci_remote_device_gone(struct domain_device *dev) */ int isci_remote_device_found(struct domain_device *domain_dev) { - struct isci_host *isci_host; + struct isci_host *isci_host = dev_to_ihost(domain_dev); struct isci_port *isci_port; struct isci_phy *isci_phy; struct asd_sas_port *sas_port; @@ -439,8 +426,6 @@ int isci_remote_device_found(struct domain_device *domain_dev) struct isci_remote_device *isci_device; enum sci_status status; - isci_host = isci_host_from_sas_ha(domain_dev->port->ha); - dev_dbg(&isci_host->pdev->dev, "%s: domain_device = %p\n", __func__, domain_dev); @@ -556,41 +541,22 @@ bool isci_device_is_reset_pending( * * true if there is a reset pending for the device. */ -void isci_device_clear_reset_pending(struct isci_remote_device *isci_device) +void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev) { struct isci_request *isci_request; struct isci_request *tmp_req; - struct isci_host *isci_host = NULL; unsigned long flags = 0; - /* FIXME more port gone confusion, and this time it makes the - * locking "fun" - */ - if (isci_device->isci_port != NULL) - isci_host = isci_device->isci_port->isci_host; - - /* - * FIXME when the isci_host gets sorted out - * use dev_dbg() - */ - pr_debug("%s: isci_device=%p, isci_host=%p\n", - __func__, isci_device, isci_host); + dev_dbg(&ihost->pdev->dev, "%s: idev=%p, ihost=%p\n", + __func__, idev, ihost); - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); - else - pr_err("%s: isci_device %p; isci_host == NULL!\n", - __func__, isci_device); + spin_lock_irqsave(&ihost->scic_lock, flags); /* Clear reset pending on all pending requests. */ list_for_each_entry_safe(isci_request, tmp_req, - &isci_device->reqs_in_process, dev_node) { - /* - * FIXME when the conditional spinlock is gone - * change to dev_dbg() - */ - pr_debug("%s: isci_device = %p request = %p\n", - __func__, isci_device, isci_request); + &idev->reqs_in_process, dev_node) { + dev_dbg(&ihost->pdev->dev, "%s: idev = %p request = %p\n", + __func__, idev, isci_request); if (isci_request->ttype == io_task) { @@ -603,9 +569,7 @@ void isci_device_clear_reset_pending(struct isci_remote_device *isci_device) spin_unlock_irqrestore(&task->task_state_lock, flags2); } } - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); } /** diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index cf5302abb8b2..9925316ac55a 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -78,59 +78,29 @@ static inline struct scic_sds_remote_device *to_sci_dev(struct isci_remote_devic return (struct scic_sds_remote_device *) &idev[1]; } -#define to_isci_remote_device(p) \ - container_of(p, struct isci_remote_device, sci_remote_device); - #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 - -/** - * isci_dev_from_domain_dev() - This accessor retrieves the remote_device - * object reference from the Linux domain_device reference. - * @domdev,: This parameter points to the Linux domain_device object . - * - * A reference to the associated isci remote device. - */ -#define isci_dev_from_domain_dev(domdev) \ - ((struct isci_remote_device *)(domdev)->lldd_dev) - -void isci_remote_device_start_complete( - struct isci_host *, - struct isci_remote_device *, - enum sci_status); - -void isci_remote_device_stop_complete( - struct isci_host *, - struct isci_remote_device *, - enum sci_status); - +void isci_remote_device_start_complete(struct isci_host *ihost, + struct isci_remote_device *idev, + enum sci_status); +void isci_remote_device_stop_complete(struct isci_host *ihost, + struct isci_remote_device *idev, + enum sci_status); enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_remote_device *idev); -void isci_remote_device_nuke_requests( - struct isci_remote_device *isci_device); - +void isci_remote_device_nuke_requests(struct isci_host *ihost, + struct isci_remote_device *idev); void isci_remote_device_ready(struct isci_host *ihost, struct isci_remote_device *idev); - void isci_remote_device_not_ready(struct isci_host *ihost, struct isci_remote_device *idev, u32 reason); - -void isci_remote_device_gone( - struct domain_device *domain_dev); - -int isci_remote_device_found( - struct domain_device *domain_dev); - -bool isci_device_is_reset_pending( - struct isci_host *isci_host, - struct isci_remote_device *isci_device); - -void isci_device_clear_reset_pending( - struct isci_remote_device *isci_device); - -void isci_remote_device_change_state( - struct isci_remote_device *isci_device, - enum isci_status status); +void isci_remote_device_gone(struct domain_device *domain_dev); +int isci_remote_device_found(struct domain_device *domain_dev); +bool isci_device_is_reset_pending(struct isci_host *ihost, + struct isci_remote_device *idev); +void isci_device_clear_reset_pending(struct isci_host *ihost, + struct isci_remote_device *idev); +void isci_remote_device_change_state(struct isci_remote_device *idev, + enum isci_status status); #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */ - diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index b519373597a5..37ffedc94ac0 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -379,7 +379,7 @@ int isci_request_execute( struct isci_request *request; unsigned long flags; - isci_device = isci_dev_from_domain_dev(task->dev); + isci_device = task->dev->lldd_dev; sci_device = to_sci_dev(isci_device); /* do common allocation and init of request object. */ diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 5bcea60fd8c4..c6c97ad58c9f 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -146,7 +146,7 @@ static void isci_task_refuse(struct isci_host *ihost, struct sas_task *task, */ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) { - struct isci_host *ihost = task->dev->port->ha->lldd_ha; + struct isci_host *ihost = dev_to_ihost(task->dev); struct isci_request *request = NULL; struct isci_remote_device *device; unsigned long flags; @@ -169,7 +169,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) "task = %p, num = %d; dev = %p; cmd = %p\n", task, num, task->dev, task->uldd_task); - device = isci_dev_from_domain_dev(task->dev); + device = task->dev->lldd_dev; if (device) device_status = device->status; @@ -593,7 +593,6 @@ static void isci_task_build_abort_task_tmf( static struct isci_request *isci_task_get_request_from_task( struct sas_task *task, - struct isci_host **isci_host, struct isci_remote_device **isci_device) { @@ -609,9 +608,6 @@ static struct isci_request *isci_task_get_request_from_task( (task->task_state_flags & SAS_TASK_AT_INITIATOR) && (request != NULL)) { - if (isci_host != NULL) - *isci_host = request->isci_host; - if (isci_device != NULL) *isci_device = request->isci_device; } @@ -1027,26 +1023,17 @@ static int isci_task_send_lu_reset_sas( * * status, zero indicates success. */ -int isci_task_lu_reset( - struct domain_device *domain_device, - u8 *lun) +int isci_task_lu_reset(struct domain_device *domain_device, u8 *lun) { - struct isci_host *isci_host = NULL; + struct isci_host *isci_host = dev_to_ihost(domain_device); struct isci_remote_device *isci_device = NULL; int ret; bool device_stopping = false; - if (domain_device == NULL) { - pr_warn("%s: domain_device == NULL\n", __func__); - return TMF_RESP_FUNC_FAILED; - } - - isci_device = isci_dev_from_domain_dev(domain_device); - - if (domain_device->port != NULL) - isci_host = isci_host_from_sas_ha(domain_device->port->ha); + isci_device = domain_device->lldd_dev; - pr_debug("%s: domain_device=%p, isci_host=%p; isci_device=%p\n", + dev_dbg(&isci_host->pdev->dev, + "%s: domain_device=%p, isci_host=%p; isci_device=%p\n", __func__, domain_device, isci_host, isci_device); if (isci_device != NULL) @@ -1057,24 +1044,18 @@ int isci_task_lu_reset( * device's list, fail this LUN reset request in order to * escalate to the device reset. */ - if ((isci_device == NULL) || - (isci_host == NULL) || - ((isci_host != NULL) && - (isci_device != NULL) && - (device_stopping || - (isci_device_is_reset_pending(isci_host, isci_device))))) { + if (!isci_device || device_stopping || + isci_device_is_reset_pending(isci_host, isci_device)) { dev_warn(&isci_host->pdev->dev, - "%s: No dev (%p), no host (%p), or " + "%s: No dev (%p), or " "RESET PENDING: domain_device=%p\n", - __func__, isci_device, isci_host, domain_device); + __func__, isci_device, domain_device); return TMF_RESP_FUNC_FAILED; } /* Send the task management part of the reset. */ if (sas_protocol_ata(domain_device->tproto)) { - ret = isci_task_send_lu_reset_sata( - isci_host, isci_device, lun - ); + ret = isci_task_send_lu_reset_sata(isci_host, isci_device, lun); } else ret = isci_task_send_lu_reset_sas(isci_host, isci_device, lun); @@ -1173,11 +1154,11 @@ static void isci_abort_task_process_cb( */ int isci_task_abort_task(struct sas_task *task) { + struct isci_host *isci_host = dev_to_ihost(task->dev); DECLARE_COMPLETION_ONSTACK(aborted_io_completion); struct isci_request *old_request = NULL; enum isci_request_status old_state; struct isci_remote_device *isci_device = NULL; - struct isci_host *isci_host = NULL; struct isci_tmf tmf; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; @@ -1189,8 +1170,7 @@ int isci_task_abort_task(struct sas_task *task) * in the device, because tasks driving resets may land here * after completion in the core. */ - old_request = isci_task_get_request_from_task(task, &isci_host, - &isci_device); + old_request = isci_task_get_request_from_task(task, &isci_device); dev_dbg(&isci_host->pdev->dev, "%s: task = %p\n", __func__, task); @@ -1610,37 +1590,29 @@ u32 isci_task_ssp_request_get_response_data_length( */ int isci_bus_reset_handler(struct scsi_cmnd *cmd) { + struct domain_device *dev = cmd_to_domain_dev(cmd); + struct isci_host *isci_host = dev_to_ihost(dev); unsigned long flags = 0; - struct isci_host *isci_host = NULL; enum sci_status status; int base_status; - struct isci_remote_device *isci_dev - = isci_dev_from_domain_dev( - sdev_to_domain_dev(cmd->device)); + struct isci_remote_device *isci_dev = dev->lldd_dev; - dev_dbg(&cmd->device->sdev_gendev, + dev_dbg(&isci_host->pdev->dev, "%s: cmd %p, isci_dev %p\n", __func__, cmd, isci_dev); if (!isci_dev) { - dev_warn(&cmd->device->sdev_gendev, + dev_warn(&isci_host->pdev->dev, "%s: isci_dev is GONE!\n", __func__); return TMF_RESP_FUNC_COMPLETE; /* Nothing to reset. */ } - if (isci_dev->isci_port != NULL) - isci_host = isci_dev->isci_port->isci_host; - - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); - + spin_lock_irqsave(&isci_host->scic_lock, flags); status = scic_remote_device_reset(to_sci_dev(isci_dev)); if (status != SCI_SUCCESS) { - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); scmd_printk(KERN_WARNING, cmd, "%s: scic_remote_device_reset(%p) returned %d!\n", @@ -1648,14 +1620,13 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) return TMF_RESP_FUNC_FAILED; } - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); /* Make sure all pending requests are able to be fully terminated. */ - isci_device_clear_reset_pending(isci_dev); + isci_device_clear_reset_pending(isci_host, isci_dev); /* Terminate in-progress I/O now. */ - isci_remote_device_nuke_requests(isci_dev); + isci_remote_device_nuke_requests(isci_host, isci_dev); /* Call into the libsas default handler (which calls sas_phy_reset). */ base_status = sas_eh_bus_reset_handler(cmd); @@ -1672,13 +1643,9 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) } /* WHAT TO DO HERE IF sas_phy_reset FAILS? */ - - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); + spin_lock_irqsave(&isci_host->scic_lock, flags); status = scic_remote_device_reset_complete(to_sci_dev(isci_dev)); - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); if (status != SCI_SUCCESS) { scmd_printk(KERN_WARNING, cmd, @@ -1688,7 +1655,7 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) } /* WHAT TO DO HERE IF scic_remote_device_reset_complete FAILS? */ - dev_dbg(&cmd->device->sdev_gendev, + dev_dbg(&isci_host->pdev->dev, "%s: cmd %p, isci_dev %p complete.\n", __func__, cmd, isci_dev);