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/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _NFP_PORT_H_
#define _NFP_PORT_H_
#include <net/devlink.h>
struct net_device;
struct nfp_app;
struct nfp_pf;
struct nfp_port;
/**
* enum nfp_port_type - type of port NFP can switch traffic to
* @NFP_PORT_INVALID: port is invalid, %NFP_PORT_PHYS_PORT transitions to this
* state when port disappears because of FW fault or config
* change
* @NFP_PORT_PHYS_PORT: external NIC port
*/
enum nfp_port_type {
NFP_PORT_INVALID,
NFP_PORT_PHYS_PORT,
};
/**
* enum nfp_port_flags - port flags (can be type-specific)
* @NFP_PORT_CHANGED: port state has changed since last eth table refresh;
* for NFP_PORT_PHYS_PORT, never set otherwise; must hold
* rtnl_lock to clear
*/
enum nfp_port_flags {
NFP_PORT_CHANGED = 0,
};
/**
* struct nfp_port - structure representing NFP port
* @netdev: backpointer to associated netdev
* @type: what port type does the entity represent
* @flags: port flags
* @app: backpointer to the app structure
* @dl_port: devlink port structure
* @eth_id: for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
* @eth_port: for %NFP_PORT_PHYS_PORT translated ETH Table port entry
* @port_list: entry on pf's list of ports
*/
struct nfp_port {
struct net_device *netdev;
enum nfp_port_type type;
unsigned long flags;
struct nfp_app *app;
struct devlink_port dl_port;
unsigned int eth_id;
struct nfp_eth_table_port *eth_port;
struct list_head port_list;
};
struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
struct nfp_port *
nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id);
struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
int
nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);
struct nfp_port *
nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
struct net_device *netdev);
void nfp_port_free(struct nfp_port *port);
int nfp_net_refresh_eth_port(struct nfp_port *port);
void nfp_net_refresh_port_table(struct nfp_port *port);
int nfp_net_refresh_port_table_sync(struct nfp_pf *pf);
int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port);
void nfp_devlink_port_unregister(struct nfp_port *port);
#endif
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