1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /**************************************************************************** 3 * Driver for Solarflare network controllers and boards 4 * Copyright 2019 Solarflare Communications Inc. 5 * Copyright 2020-2022 Xilinx Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published 9 * by the Free Software Foundation, incorporated herein by reference. 10 */ 11 12 /* Handling for ef100 representor netdevs */ 13 #ifndef EF100_REP_H 14 #define EF100_REP_H 15 16 #include "net_driver.h" 17 #include "tc.h" 18 19 struct efx_rep_sw_stats { 20 atomic64_t rx_packets, tx_packets; 21 atomic64_t rx_bytes, tx_bytes; 22 atomic64_t rx_dropped, tx_errors; 23 }; 24 25 struct devlink_port; 26 27 /** 28 * struct efx_rep - Private data for an Efx representor 29 * 30 * @parent: the efx PF which manages this representor 31 * @net_dev: representor netdevice 32 * @msg_enable: log message enable flags 33 * @mport: m-port ID of corresponding VF 34 * @idx: VF index 35 * @write_index: number of packets enqueued to @rx_list 36 * @read_index: number of packets consumed from @rx_list 37 * @rx_pring_size: max length of RX list 38 * @dflt: default-rule for MAE switching 39 * @list: entry on efx->vf_reps 40 * @rx_list: list of SKBs queued for receive in NAPI poll 41 * @rx_lock: protects @rx_list 42 * @napi: NAPI control structure 43 * @stats: software traffic counters for netdev stats 44 * @dl_port: devlink port associated to this netdev representor 45 */ 46 struct efx_rep { 47 struct efx_nic *parent; 48 struct net_device *net_dev; 49 u32 msg_enable; 50 u32 mport; 51 unsigned int idx; 52 unsigned int write_index, read_index; 53 unsigned int rx_pring_size; 54 struct efx_tc_flow_rule dflt; 55 struct list_head list; 56 struct list_head rx_list; 57 spinlock_t rx_lock; 58 struct napi_struct napi; 59 struct efx_rep_sw_stats stats; 60 struct devlink_port *dl_port; 61 }; 62 63 int efx_ef100_vfrep_create(struct efx_nic *efx, unsigned int i); 64 void efx_ef100_vfrep_destroy(struct efx_nic *efx, struct efx_rep *efv); 65 void efx_ef100_fini_vfreps(struct efx_nic *efx); 66 67 void efx_ef100_rep_rx_packet(struct efx_rep *efv, struct efx_rx_buffer *rx_buf); 68 /* Returns the representor corresponding to a VF m-port, or NULL 69 * @mport is an m-port label, *not* an m-port ID! 70 * Caller must hold rcu_read_lock(). 71 */ 72 struct efx_rep *efx_ef100_find_rep_by_mport(struct efx_nic *efx, u16 mport); 73 extern const struct net_device_ops efx_ef100_rep_netdev_ops; 74 void efx_ef100_init_reps(struct efx_nic *efx); 75 void efx_ef100_fini_reps(struct efx_nic *efx); 76 struct mae_mport_desc; 77 bool ef100_mport_on_local_intf(struct efx_nic *efx, 78 struct mae_mport_desc *mport_desc); 79 bool ef100_mport_is_vf(struct mae_mport_desc *mport_desc); 80 #endif /* EF100_REP_H */ 81