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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020, Intel Corporation. */
#include "ice.h"
#include "ice_devlink.h"
static const struct devlink_ops ice_devlink_ops = {
};
static void ice_devlink_free(void *devlink_ptr)
{
devlink_free((struct devlink *)devlink_ptr);
}
/**
* ice_allocate_pf - Allocate devlink and return PF structure pointer
* @dev: the device to allocate for
*
* Allocate a devlink instance for this device and return the private area as
* the PF structure. The devlink memory is kept track of through devres by
* adding an action to remove it when unwinding.
*/
struct ice_pf *ice_allocate_pf(struct device *dev)
{
struct devlink *devlink;
devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf));
if (!devlink)
return NULL;
/* Add an action to teardown the devlink when unwinding the driver */
if (devm_add_action(dev, ice_devlink_free, devlink)) {
devlink_free(devlink);
return NULL;
}
return devlink_priv(devlink);
}
/**
* ice_devlink_register - Register devlink interface for this PF
* @pf: the PF to register the devlink for.
*
* Register the devlink instance associated with this physical function.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_register(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct device *dev = ice_pf_to_dev(pf);
int err;
err = devlink_register(devlink, dev);
if (err) {
dev_err(dev, "devlink registration failed: %d\n", err);
return err;
}
return 0;
}
/**
* ice_devlink_unregister - Unregister devlink resources for this PF.
* @pf: the PF structure to cleanup
*
* Releases resources used by devlink and cleans up associated memory.
*/
void ice_devlink_unregister(struct ice_pf *pf)
{
devlink_unregister(priv_to_devlink(pf));
}
/**
* ice_devlink_create_port - Create a devlink port for this PF
* @pf: the PF to create a port for
*
* Create and register a devlink_port for this PF. Note that although each
* physical function is connected to a separate devlink instance, the port
* will still be numbered according to the physical function id.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_create_port(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct ice_vsi *vsi = ice_get_main_vsi(pf);
struct device *dev = ice_pf_to_dev(pf);
int err;
if (!vsi) {
dev_err(dev, "%s: unable to find main VSI\n", __func__);
return -EIO;
}
devlink_port_attrs_set(&pf->devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
pf->hw.pf_id, false, 0, NULL, 0);
err = devlink_port_register(devlink, &pf->devlink_port, pf->hw.pf_id);
if (err) {
dev_err(dev, "devlink_port_register failed: %d\n", err);
return err;
}
return 0;
}
/**
* ice_devlink_destroy_port - Destroy the devlink_port for this PF
* @pf: the PF to cleanup
*
* Unregisters the devlink_port structure associated with this PF.
*/
void ice_devlink_destroy_port(struct ice_pf *pf)
{
devlink_port_type_clear(&pf->devlink_port);
devlink_port_unregister(&pf->devlink_port);
}
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