diff options
Diffstat (limited to 'drivers/scsi/fcoe/fc_transport_fcoe.c')
| -rw-r--r-- | drivers/scsi/fcoe/fc_transport_fcoe.c | 91 |
1 files changed, 44 insertions, 47 deletions
diff --git a/drivers/scsi/fcoe/fc_transport_fcoe.c b/drivers/scsi/fcoe/fc_transport_fcoe.c index bf7fe6fc082..8862758006c 100644 --- a/drivers/scsi/fcoe/fc_transport_fcoe.c +++ b/drivers/scsi/fcoe/fc_transport_fcoe.c @@ -33,19 +33,19 @@ static LIST_HEAD(fcoe_transports); static DEFINE_MUTEX(fcoe_transports_lock); /** - * fcoe_transport_default - returns ptr to the default transport fcoe_sw - **/ + * fcoe_transport_default() - Returns ptr to the default transport fcoe_sw + */ struct fcoe_transport *fcoe_transport_default(void) { return &fcoe_sw_transport; } /** - * fcoe_transport_to_pcidev - get the pci dev from a netdev + * fcoe_transport_to_pcidev() - get the pci dev from a netdev * @netdev: the netdev that pci dev will be retrived from * * Returns: NULL or the corrsponding pci_dev - **/ + */ struct pci_dev *fcoe_transport_pcidev(const struct net_device *netdev) { if (!netdev->dev.parent) @@ -54,18 +54,17 @@ struct pci_dev *fcoe_transport_pcidev(const struct net_device *netdev) } /** - * fcoe_transport_device_lookup - find out netdev is managed by the - * transport - * assign a transport to a device + * fcoe_transport_device_lookup() - Lookup a transport * @netdev: the netdev the transport to be attached to * * This will look for existing offload driver, if not found, it falls back to * the default sw hba (fcoe_sw) as its fcoe transport. * * Returns: 0 for success - **/ -static struct fcoe_transport_internal *fcoe_transport_device_lookup( - struct fcoe_transport *t, struct net_device *netdev) + */ +static struct fcoe_transport_internal * +fcoe_transport_device_lookup(struct fcoe_transport *t, + struct net_device *netdev) { struct fcoe_transport_internal *ti; @@ -81,14 +80,14 @@ static struct fcoe_transport_internal *fcoe_transport_device_lookup( return NULL; } /** - * fcoe_transport_device_add - assign a transport to a device + * fcoe_transport_device_add() - Assign a transport to a device * @netdev: the netdev the transport to be attached to * * This will look for existing offload driver, if not found, it falls back to * the default sw hba (fcoe_sw) as its fcoe transport. * * Returns: 0 for success - **/ + */ static int fcoe_transport_device_add(struct fcoe_transport *t, struct net_device *netdev) { @@ -123,14 +122,14 @@ static int fcoe_transport_device_add(struct fcoe_transport *t, } /** - * fcoe_transport_device_remove - remove a device from its transport + * fcoe_transport_device_remove() - Remove a device from its transport * @netdev: the netdev the transport to be attached to * - * this removes the device from the transport so the given transport will + * This removes the device from the transport so the given transport will * not manage this device any more * * Returns: 0 for success - **/ + */ static int fcoe_transport_device_remove(struct fcoe_transport *t, struct net_device *netdev) { @@ -155,13 +154,13 @@ static int fcoe_transport_device_remove(struct fcoe_transport *t, } /** - * fcoe_transport_device_remove_all - remove all from transport devlist + * fcoe_transport_device_remove_all() - Remove all from transport devlist * - * this removes the device from the transport so the given transport will + * This removes the device from the transport so the given transport will * not manage this device any more * * Returns: 0 for success - **/ + */ static void fcoe_transport_device_remove_all(struct fcoe_transport *t) { struct fcoe_transport_internal *ti, *tmp; @@ -175,18 +174,18 @@ static void fcoe_transport_device_remove_all(struct fcoe_transport *t) } /** - * fcoe_transport_match - use the bus device match function to match the hw - * @t: the fcoe transport - * @netdev: + * fcoe_transport_match() - Use the bus device match function to match the hw + * @t: The fcoe transport to check + * @netdev: The netdev to match against * - * This function is used to check if the givne transport wants to manage the + * This function is used to check if the given transport wants to manage the * input netdev. if the transports implements the match function, it will be * called, o.w. we just compare the pci vendor and device id. * * Returns: true for match up - **/ + */ static bool fcoe_transport_match(struct fcoe_transport *t, - struct net_device *netdev) + struct net_device *netdev) { /* match transport by vendor and device id */ struct pci_dev *pci; @@ -210,17 +209,17 @@ static bool fcoe_transport_match(struct fcoe_transport *t, } /** - * fcoe_transport_lookup - check if the transport is already registered + * fcoe_transport_lookup() - Check if the transport is already registered * @t: the transport to be looked up * * This compares the parent device (pci) vendor and device id * * Returns: NULL if not found * - * TODO - return default sw transport if no other transport is found - **/ -static struct fcoe_transport *fcoe_transport_lookup( - struct net_device *netdev) + * TODO: return default sw transport if no other transport is found + */ +static struct fcoe_transport * +fcoe_transport_lookup(struct net_device *netdev) { struct fcoe_transport *t; @@ -239,11 +238,11 @@ static struct fcoe_transport *fcoe_transport_lookup( } /** - * fcoe_transport_register - adds a fcoe transport to the fcoe transports list + * fcoe_transport_register() - Adds a fcoe transport to the fcoe transports list * @t: ptr to the fcoe transport to be added * * Returns: 0 for success - **/ + */ int fcoe_transport_register(struct fcoe_transport *t) { struct fcoe_transport *tt; @@ -259,9 +258,6 @@ int fcoe_transport_register(struct fcoe_transport *t) list_add_tail(&t->list, &fcoe_transports); mutex_unlock(&fcoe_transports_lock); - mutex_init(&t->devlock); - INIT_LIST_HEAD(&t->devlist); - printk(KERN_DEBUG "fcoe_transport_register:%s\n", t->name); return 0; @@ -269,11 +265,11 @@ int fcoe_transport_register(struct fcoe_transport *t) EXPORT_SYMBOL_GPL(fcoe_transport_register); /** - * fcoe_transport_unregister - remove the tranport fro the fcoe transports list + * fcoe_transport_unregister() - Remove the tranport fro the fcoe transports list * @t: ptr to the fcoe transport to be removed * * Returns: 0 for success - **/ + */ int fcoe_transport_unregister(struct fcoe_transport *t) { struct fcoe_transport *tt, *tmp; @@ -294,8 +290,8 @@ int fcoe_transport_unregister(struct fcoe_transport *t) } EXPORT_SYMBOL_GPL(fcoe_transport_unregister); -/* - * fcoe_load_transport_driver - load an offload driver by alias name +/** + * fcoe_load_transport_driver() - Load an offload driver by alias name * @netdev: the target net device * * Requests for an offload driver module as the fcoe transport, if fails, it @@ -307,7 +303,7 @@ EXPORT_SYMBOL_GPL(fcoe_transport_unregister); * 3. pure hw fcoe hba may not have netdev * * Returns: 0 for success - **/ + */ int fcoe_load_transport_driver(struct net_device *netdev) { struct pci_dev *pci; @@ -335,14 +331,14 @@ int fcoe_load_transport_driver(struct net_device *netdev) EXPORT_SYMBOL_GPL(fcoe_load_transport_driver); /** - * fcoe_transport_attach - load transport to fcoe + * fcoe_transport_attach() - Load transport to fcoe * @netdev: the netdev the transport to be attached to * * This will look for existing offload driver, if not found, it falls back to * the default sw hba (fcoe_sw) as its fcoe transport. * * Returns: 0 for success - **/ + */ int fcoe_transport_attach(struct net_device *netdev) { struct fcoe_transport *t; @@ -373,11 +369,11 @@ int fcoe_transport_attach(struct net_device *netdev) EXPORT_SYMBOL_GPL(fcoe_transport_attach); /** - * fcoe_transport_release - unload transport from fcoe + * fcoe_transport_release() - Unload transport from fcoe * @netdev: the net device on which fcoe is to be released * * Returns: 0 for success - **/ + */ int fcoe_transport_release(struct net_device *netdev) { struct fcoe_transport *t; @@ -410,12 +406,12 @@ int fcoe_transport_release(struct net_device *netdev) EXPORT_SYMBOL_GPL(fcoe_transport_release); /** - * fcoe_transport_init - initializes fcoe transport layer + * fcoe_transport_init() - Initializes fcoe transport layer * * This prepares for the fcoe transport layer * * Returns: none - **/ + */ int __init fcoe_transport_init(void) { INIT_LIST_HEAD(&fcoe_transports); @@ -424,12 +420,13 @@ int __init fcoe_transport_init(void) } /** - * fcoe_transport_exit - cleans up the fcoe transport layer + * fcoe_transport_exit() - Cleans up the fcoe transport layer + * * This cleans up the fcoe transport layer. removing any transport on the list, * note that the transport destroy func is not called here. * * Returns: none - **/ + */ int __exit fcoe_transport_exit(void) { struct fcoe_transport *t, *tmp; 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