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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2023 Intel Corporation. */
#include <net/devlink.h>
#include "i40e.h"
#include "i40e_devlink.h"
static const struct devlink_ops i40e_devlink_ops = {
};
/**
* i40e_alloc_pf - Allocate devlink and return i40e_pf structure pointer
* @dev: the device to allocate for
*
* Allocate a devlink instance for this device and return the private
* area as the i40e_pf structure.
**/
struct i40e_pf *i40e_alloc_pf(struct device *dev)
{
struct devlink *devlink;
devlink = devlink_alloc(&i40e_devlink_ops, sizeof(struct i40e_pf), dev);
if (!devlink)
return NULL;
return devlink_priv(devlink);
}
/**
* i40e_free_pf - Free i40e_pf structure and associated devlink
* @pf: the PF structure
*
* Free i40e_pf structure and devlink allocated by devlink_alloc.
**/
void i40e_free_pf(struct i40e_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
devlink_free(devlink);
}
/**
* i40e_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.
**/
void i40e_devlink_register(struct i40e_pf *pf)
{
devlink_register(priv_to_devlink(pf));
}
/**
* i40e_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 i40e_devlink_unregister(struct i40e_pf *pf)
{
devlink_unregister(priv_to_devlink(pf));
}
/**
* i40e_devlink_set_switch_id - Set unique switch id based on pci dsn
* @pf: the PF to create a devlink port for
* @ppid: struct with switch id information
*/
static void i40e_devlink_set_switch_id(struct i40e_pf *pf,
struct netdev_phys_item_id *ppid)
{
u64 id = pci_get_dsn(pf->pdev);
ppid->id_len = sizeof(id);
put_unaligned_be64(id, &ppid->id);
}
/**
* i40e_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 i40e_devlink_create_port(struct i40e_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct devlink_port_attrs attrs = {};
struct device *dev = &pf->pdev->dev;
int err;
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = pf->hw.pf_id;
i40e_devlink_set_switch_id(pf, &attrs.switch_id);
devlink_port_attrs_set(&pf->devlink_port, &attrs);
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;
}
/**
* i40e_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 i40e_devlink_destroy_port(struct i40e_pf *pf)
{
devlink_port_type_clear(&pf->devlink_port);
devlink_port_unregister(&pf->devlink_port);
}
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