nfp_main.h

/*
 * Copyright (C) 2015-2017 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.
 */

/*
 * nfp_main.h
 * Author: Jason McMullan <jason.mcmullan@netronome.com>
 */

#ifndef NFP_MAIN_H
#define NFP_MAIN_H

#include <linux/list.h>
#include <linux/types.h>
#include <linux/msi.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/workqueue.h>

struct dentry;
struct pci_dev;

struct nfp_cpp;
struct nfp_cpp_area;
struct nfp_eth_table;

/**
 * struct nfp_pf - NFP PF-specific device structure
 * @pdev:		Backpointer to PCI device
 * @cpp:		Pointer to the CPP handle
 * @data_vnic_bar:	Pointer to the CPP area for the data vNICs' BARs
 * @tx_area:		Pointer to the CPP area for the TX queues
 * @rx_area:		Pointer to the CPP area for the FL/RX queues
 * @irq_entries:	Array of MSI-X entries for all vNICs
 * @limit_vfs:		Number of VFs supported by firmware (~0 for PCI limit)
 * @num_vfs:		Number of SR-IOV VFs enabled
 * @fw_loaded:		Is the firmware loaded?
 * @eth_tbl:		NSP ETH table
 * @ddir:		Per-device debugfs directory
 * @max_data_vnics:	Number of data vNICs app firmware supports
 * @num_vnics:		Number of vNICs spawned
 * @vnics:		Linked list of vNIC structures (struct nfp_net)
 * @port_refresh_work:	Work entry for taking netdevs out
 * @lock:		Protects all fields which may change after probe
 */
struct nfp_pf {
	struct pci_dev *pdev;

	struct nfp_cpp *cpp;

	struct nfp_cpp_area *data_vnic_bar;
	struct nfp_cpp_area *tx_area;
	struct nfp_cpp_area *rx_area;

	struct msix_entry *irq_entries;

	unsigned int limit_vfs;
	unsigned int num_vfs;

	bool fw_loaded;

	struct nfp_eth_table *eth_tbl;

	struct dentry *ddir;

	unsigned int max_data_vnics;
	unsigned int num_vnics;

	struct list_head vnics;
	struct work_struct port_refresh_work;
	struct mutex lock;
};

extern struct pci_driver nfp_netvf_pci_driver;

int nfp_net_pci_probe(struct nfp_pf *pf);
void nfp_net_pci_remove(struct nfp_pf *pf);

#endif /* NFP_MAIN_H */