diff options
author | Dan Williams <dan.j.williams@intel.com> | 2011-04-22 01:14:45 (GMT) |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2011-07-03 11:00:38 (GMT) |
commit | 57f20f4ed6fb702339be2ef4dea9d15e6a7d0d07 (patch) | |
tree | d31db747f233d5ea790e82b64e233ee762cf2cdf | |
parent | 9614395ea2eed076fa8341df422582b0017d330c (diff) | |
download | linux-fsl-qoriq-57f20f4ed6fb702339be2ef4dea9d15e6a7d0d07.tar.xz |
isci: unify remote_device data structures
Make it explicit that isci_remote_device and scic_sds_remote_device are
one in the same object.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-rw-r--r-- | drivers/scsi/isci/core/scic_remote_device.h | 12 | ||||
-rw-r--r-- | drivers/scsi/isci/core/scic_sds_remote_device.c | 15 | ||||
-rw-r--r-- | drivers/scsi/isci/host.c | 2 | ||||
-rw-r--r-- | drivers/scsi/isci/host.h | 11 | ||||
-rw-r--r-- | drivers/scsi/isci/init.c | 5 | ||||
-rw-r--r-- | drivers/scsi/isci/remote_device.c | 17 | ||||
-rw-r--r-- | drivers/scsi/isci/remote_device.h | 9 | ||||
-rw-r--r-- | drivers/scsi/isci/request.c | 12 | ||||
-rw-r--r-- | drivers/scsi/isci/task.c | 20 |
9 files changed, 28 insertions, 75 deletions
diff --git a/drivers/scsi/isci/core/scic_remote_device.h b/drivers/scsi/isci/core/scic_remote_device.h index 62fa7fd..23e90af 100644 --- a/drivers/scsi/isci/core/scic_remote_device.h +++ b/drivers/scsi/isci/core/scic_remote_device.h @@ -87,18 +87,6 @@ enum scic_remote_device_not_ready_reason_code { }; /** - * scic_remote_device_get_object_size() - This method simply returns the - * maximum memory space needed to store a remote device object. - * - * a positive integer value indicating the size (in bytes) of the remote device - * object. - */ -u32 scic_remote_device_get_object_size( - void); - -struct scic_sds_port; -struct scic_sds_remote_device; -/** * scic_remote_device_construct() - This method will perform the construction * common to all remote device objects. * @sci_port: SAS/SATA port through which this device is accessed. diff --git a/drivers/scsi/isci/core/scic_sds_remote_device.c b/drivers/scsi/isci/core/scic_sds_remote_device.c index 22788bf..d314e2b 100644 --- a/drivers/scsi/isci/core/scic_sds_remote_device.c +++ b/drivers/scsi/isci/core/scic_sds_remote_device.c @@ -71,21 +71,6 @@ #define SCIC_SDS_REMOTE_DEVICE_RESET_TIMEOUT (1000) -/* - * ***************************************************************************** - * * CORE REMOTE DEVICE PRIVATE METHODS - * ***************************************************************************** */ - -/* - * ***************************************************************************** - * * CORE REMOTE DEVICE PUBLIC METHODS - * ***************************************************************************** */ - -u32 scic_remote_device_get_object_size(void) -{ - return sizeof (struct scic_sds_remote_device); -} - enum sci_status scic_remote_device_da_construct( struct scic_sds_remote_device *sci_dev) { diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 0d706b2..3aceb92 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -467,7 +467,7 @@ int isci_host_init(struct isci_host *isci_host) isci_phy_init(&isci_host->phys[i], isci_host, i); for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) { - struct isci_remote_device *idev = idev_by_id(isci_host, i); + struct isci_remote_device *idev = &isci_host->devices[i]; INIT_LIST_HEAD(&idev->reqs_in_process); INIT_LIST_HEAD(&idev->node); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 6e66074..21bd7d8 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -110,18 +110,9 @@ struct isci_host { struct list_head requests_to_errorback; spinlock_t scic_lock; - /* careful only access this via idev_by_id */ - struct isci_remote_device devices[0]; + struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES]; }; -static inline struct isci_remote_device *idev_by_id(struct isci_host *ihost, int i) -{ - void *p = ihost->devices; - - return p + i * (sizeof(struct isci_remote_device) + - scic_remote_device_get_object_size()); -} - /** * struct isci_pci_info - This class represents the pci function containing the * controllers. Depending on PCI SKU, there could be up to 2 controllers in diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 5a9cd5f..a23ea2c 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -396,10 +396,7 @@ static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id) struct Scsi_Host *shost; int err; - isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host) + - SCI_MAX_REMOTE_DEVICES * - (sizeof(struct isci_remote_device) + - scic_remote_device_get_object_size()), GFP_KERNEL); + isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL); if (!isci_host) return NULL; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 9301e25..1553221 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -87,7 +87,7 @@ static void isci_remote_device_deconstruct(struct isci_host *ihost, struct isci_ BUG(); } - scic_remote_device_destruct(to_sci_dev(idev)); + scic_remote_device_destruct(&idev->sci); idev->domain_dev->lldd_dev = NULL; idev->domain_dev = NULL; idev->isci_port = NULL; @@ -117,7 +117,7 @@ static enum sci_status isci_remote_device_construct( /* let the core do it's common constuction. */ scic_remote_device_construct(port->sci_port_handle, - to_sci_dev(isci_device)); + &isci_device->sci); /* let the core do it's device specific constuction. */ if (isci_device->domain_dev->parent && @@ -183,11 +183,11 @@ static enum sci_status isci_remote_device_construct( "%s: parent->dev_type = EDGE_DEV\n", __func__); - status = scic_remote_device_ea_construct(to_sci_dev(isci_device), + status = scic_remote_device_ea_construct(&isci_device->sci, (struct smp_response_discover *)&discover_response); } else - status = scic_remote_device_da_construct(to_sci_dev(isci_device)); + status = scic_remote_device_da_construct(&isci_device->sci); if (status != SCI_SUCCESS) { @@ -200,10 +200,11 @@ static enum sci_status isci_remote_device_construct( return status; } - sci_object_set_association(to_sci_dev(isci_device), isci_device); + /* XXX will be killed with sci_base_object removal */ + sci_object_set_association(&isci_device->sci, isci_device); /* start the device. */ - status = scic_remote_device_start(to_sci_dev(isci_device), + status = scic_remote_device_start(&isci_device->sci, ISCI_REMOTE_DEVICE_START_TIMEOUT); if (status != SCI_SUCCESS) { @@ -245,7 +246,7 @@ isci_remote_device_alloc(struct isci_host *ihost, struct isci_port *iport) int i; for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) { - idev = idev_by_id(ihost, i); + idev = &ihost->devices[i]; if (!test_and_set_bit(IDEV_ALLOCATED, &idev->flags)) break; } @@ -374,7 +375,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem set_bit(IDEV_STOP_PENDING, &idev->flags); spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_stop(to_sci_dev(idev), 50); + status = scic_remote_device_stop(&idev->sci, 50); spin_unlock_irqrestore(&ihost->scic_lock, flags); /* Wait for the stop complete callback. */ diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 9925316..aeda395 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -55,9 +55,9 @@ #if !defined(_ISCI_REMOTE_DEVICE_H_) #define _ISCI_REMOTE_DEVICE_H_ +#include "scic_sds_remote_device.h" struct isci_host; -struct scic_sds_remote_device; struct isci_remote_device { enum isci_status status; @@ -70,14 +70,9 @@ struct isci_remote_device { struct list_head node; struct list_head reqs_in_process; spinlock_t state_lock; + struct scic_sds_remote_device sci; }; -static inline struct scic_sds_remote_device *to_sci_dev(struct isci_remote_device *idev) -{ - /* core data is an opaque buffer at the end of the idev */ - return (struct scic_sds_remote_device *) &idev[1]; -} - #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 void isci_remote_device_start_complete(struct isci_host *ihost, diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index a90c299..8d2125b 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -179,7 +179,7 @@ static enum sci_status isci_io_request_build( struct smp_discover_response_protocols dev_protocols; enum sci_status status = SCI_SUCCESS; struct sas_task *task = isci_request_access_task(request); - struct scic_sds_remote_device *sci_device = to_sci_dev(isci_device); + struct scic_sds_remote_device *sci_device = &isci_device->sci; dev_dbg(&isci_host->pdev->dev, "%s: isci_device = 0x%p; request = %p, " @@ -380,7 +380,7 @@ int isci_request_execute( unsigned long flags; isci_device = task->dev->lldd_dev; - sci_device = to_sci_dev(isci_device); + sci_device = &isci_device->sci; /* do common allocation and init of request object. */ ret = isci_request_alloc_io( @@ -1194,11 +1194,9 @@ void isci_request_io_request_complete( ); /* complete the io request to the core. */ - scic_controller_complete_io( - isci_host->core_controller, - to_sci_dev(isci_device), - request->sci_request_handle - ); + scic_controller_complete_io(isci_host->core_controller, + &isci_device->sci, + request->sci_request_handle); /* NULL the request handle so it cannot be completed or * terminated again, and to cause any calls into abort * task to recognize the already completed case. diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index c79968d..f54f523 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -282,7 +282,7 @@ static enum sci_status isci_task_request_build( "%s: isci_tmf = %p\n", __func__, isci_tmf); isci_device = isci_tmf->device; - sci_device = to_sci_dev(isci_device); + sci_device = &isci_device->sci; /* do common allocation and init of request object. */ status = isci_request_alloc_tmf( @@ -390,7 +390,7 @@ static void isci_tmf_timeout_cb(void *tmf_request_arg) /* Terminate the TMF transmit request. */ status = scic_controller_terminate_request( request->isci_host->core_controller, - to_sci_dev(request->isci_device), + &request->isci_device->sci, request->sci_request_handle ); @@ -448,7 +448,7 @@ int isci_task_execute_tmf( "%s: isci_device = %p\n", __func__, isci_device); - sci_device = to_sci_dev(isci_device); + sci_device = &isci_device->sci; /* Assign the pointer to the TMF's completion kernel wait structure. */ tmf->complete = &completion; @@ -784,9 +784,8 @@ static void isci_terminate_request_core( needs_cleanup_handling = true; status = scic_controller_terminate_request( isci_host->core_controller, - to_sci_dev(isci_device), - isci_request->sci_request_handle - ); + &isci_device->sci, + isci_request->sci_request_handle); } spin_unlock_irqrestore(&isci_host->scic_lock, flags); @@ -1483,9 +1482,8 @@ void isci_task_request_complete( scic_controller_complete_io( isci_host->core_controller, - to_sci_dev(isci_device), - request->sci_request_handle - ); + &isci_device->sci, + request->sci_request_handle); /* NULL the request handle to make sure it cannot be terminated * or completed again. */ @@ -1611,7 +1609,7 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) } spin_lock_irqsave(&isci_host->scic_lock, flags); - status = scic_remote_device_reset(to_sci_dev(isci_dev)); + status = scic_remote_device_reset(&isci_dev->sci); if (status != SCI_SUCCESS) { spin_unlock_irqrestore(&isci_host->scic_lock, flags); @@ -1645,7 +1643,7 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) /* WHAT TO DO HERE IF sas_phy_reset FAILS? */ spin_lock_irqsave(&isci_host->scic_lock, flags); - status = scic_remote_device_reset_complete(to_sci_dev(isci_dev)); + status = scic_remote_device_reset_complete(&isci_dev->sci); spin_unlock_irqrestore(&isci_host->scic_lock, flags); if (status != SCI_SUCCESS) { |