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/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2019 Solarflare Communications Inc.
* Copyright 2020-2022 Xilinx Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
/* Handling for ef100 representor netdevs */
#ifndef EF100_REP_H
#define EF100_REP_H
#include "net_driver.h"
#include "tc.h"
struct efx_rep_sw_stats {
atomic64_t rx_packets, tx_packets;
atomic64_t rx_bytes, tx_bytes;
atomic64_t rx_dropped, tx_errors;
};
struct devlink_port;
/**
* struct efx_rep - Private data for an Efx representor
*
* @parent: the efx PF which manages this representor
* @net_dev: representor netdevice
* @msg_enable: log message enable flags
* @mport: m-port ID of corresponding VF
* @idx: VF index
* @write_index: number of packets enqueued to @rx_list
* @read_index: number of packets consumed from @rx_list
* @rx_pring_size: max length of RX list
* @dflt: default-rule for MAE switching
* @list: entry on efx->vf_reps
* @rx_list: list of SKBs queued for receive in NAPI poll
* @rx_lock: protects @rx_list
* @napi: NAPI control structure
* @stats: software traffic counters for netdev stats
* @dl_port: devlink port associated to this netdev representor
*/
struct efx_rep {
struct efx_nic *parent;
struct net_device *net_dev;
u32 msg_enable;
u32 mport;
unsigned int idx;
unsigned int write_index, read_index;
unsigned int rx_pring_size;
struct efx_tc_flow_rule dflt;
struct list_head list;
struct list_head rx_list;
spinlock_t rx_lock;
struct napi_struct napi;
struct efx_rep_sw_stats stats;
struct devlink_port *dl_port;
};
int efx_ef100_vfrep_create(struct efx_nic *efx, unsigned int i);
void efx_ef100_vfrep_destroy(struct efx_nic *efx, struct efx_rep *efv);
void efx_ef100_fini_vfreps(struct efx_nic *efx);
void efx_ef100_rep_rx_packet(struct efx_rep *efv, struct efx_rx_buffer *rx_buf);
/* Returns the representor corresponding to a VF m-port, or NULL
* @mport is an m-port label, *not* an m-port ID!
* Caller must hold rcu_read_lock().
*/
struct efx_rep *efx_ef100_find_rep_by_mport(struct efx_nic *efx, u16 mport);
extern const struct net_device_ops efx_ef100_rep_netdev_ops;
void efx_ef100_init_reps(struct efx_nic *efx);
void efx_ef100_fini_reps(struct efx_nic *efx);
struct mae_mport_desc;
bool ef100_mport_on_local_intf(struct efx_nic *efx,
struct mae_mport_desc *mport_desc);
bool ef100_mport_is_vf(struct mae_mport_desc *mport_desc);
#endif /* EF100_REP_H */
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