Device Independent Functions¶

int
iflib_device_attach(device_t dev);

int
iflib_device_detach(device_t dev);

int
iflib_device_suspend(device_t dev);

int
iflib_device_resume(device_t dev);

int
iflib_device_register(device_t dev, void *softc, if_shared_ctx_t sctx, if_ctx_t *ctxp);

int
iflib_device_deregister(if_ctx_t ctx);

int
iflib_irq_alloc(if_ctx_t ctx, if_irq_t irq_info, int rid, driver_filter_t filter, void *filter_arg, driver_intr_t handler, void *arg, char *name);

int
iflib_irq_alloc_generic(if_ctx_t ctx, if_irq_t irq, int rid, intr_type_t type, driver_filter_t *filter, void *filter_arg, int qid, char *name);

void
iflib_led_create(if_ctx_t ctx);

void
iflib_tx_intr_deferred(if_ctx_t ctx, int txqid);

void
iflib_rx_intr_deferred(if_ctx_t ctx, int rxqid);

void
iflib_link_intr_deferred(if_ctx_t ctx);

void
iflib_link_state_change(if_ctx_t ctx, int linkstate);

void
iflib_add_int_delay_sysctl(if_ctx_t ctx, const char *, const char *, if_int_delay_info_t, int, int);

Global Variables¶

extern struct if_txrx

The if_ctx_t Structure¶

The fields of struct if_ctx_t are as follows:

Device Independent Functions¶

iflib_device_attach()

Function initiates a device registration with the iflib framework. It calls the iflib_register function, which is responsible for allocating and initializing the if_ctx_t structure.

iflib_device_detach()

Shutdown and detach the device. Unregister vlan events, drain any dependent tasks, and release irq, pci, and msix memory.

iflib_device_suspend()

Suspend a device by calling the device dependent suspend function and bus_generic_suspend.

iflib_device_resume()

Resume a device by calling the device dependent resume function, the iflib_init_locked function, and bus_generic_resume.

iflib_device_register()

Register a device with the iflib framework. Allocate and initialize the if_ctx_t structure. Setup and initialize the MSI or MSI/X interrupt queues if necessary. Allocate memory for queues and qset structure setup.

iflib_device_irq_alloc()

Allocate an interrupt resource for a given rid value with an associated filter and handler function.

iflib_device_irq_alloc_generic()

Performs the same function as iflib_device_irq_alloc along with the additional functionality of adding a taskgroup. The data fields and callback function are determined by the type of interrupt, such as IFLIB_INTR_TX, IFLIB_INTR_RX, and IFLIB_INTR_ADMIN.

iflib_led_create()

Calls led_create to initialize the ctx->ifc_led_dev field

iflib_tx_intr_deferred()

Calls GROUPTASK_ENQUEUE to enqueue the transfer queues ift_task.

iflib_rx_intr_deferred()

Calls GROUPTASK_ENQUEUE to enqueue the receive queues ifr_task.

iflib_link_intr_deferred()

Calls GROUPTASK_ENQUEUE to enqueue the link task

iflib_link_state_change()

Change the interface link status to either LINK_STATE_UP or LINK_STATE_DOWN as specified by the second argument to the function.

Interface Link States The following link states are currently defined:

LINK_STATE_UP

The link is up.

LINK_STATE_DOWN

The link is down.

iflib_add_int_delay_sysctl()

Modifies settings to user defined values for a given set of variables.