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 /** 26 * struct efx_rep - Private data for an Efx representor 27 * 28 * @parent: the efx PF which manages this representor 29 * @net_dev: representor netdevice 30 * @msg_enable: log message enable flags 31 * @mport: m-port ID of corresponding VF 32 * @idx: VF index 33 * @write_index: number of packets enqueued to @rx_list 34 * @read_index: number of packets consumed from @rx_list 35 * @rx_pring_size: max length of RX list 36 * @dflt: default-rule for MAE switching 37 * @list: entry on efx->vf_reps 38 * @rx_list: list of SKBs queued for receive in NAPI poll 39 * @rx_lock: protects @rx_list 40 * @napi: NAPI control structure 41 * @stats: software traffic counters for netdev stats 42 */ 43 struct efx_rep { 44 struct efx_nic *parent; 45 struct net_device *net_dev; 46 u32 msg_enable; 47 u32 mport; 48 unsigned int idx; 49 unsigned int write_index, read_index; 50 unsigned int rx_pring_size; 51 struct efx_tc_flow_rule dflt; 52 struct list_head list; 53 struct list_head rx_list; 54 spinlock_t rx_lock; 55 struct napi_struct napi; 56 struct efx_rep_sw_stats stats; 57 }; 58 59 int efx_ef100_vfrep_create(struct efx_nic *efx, unsigned int i); 60 void efx_ef100_vfrep_destroy(struct efx_nic *efx, struct efx_rep *efv); 61 void efx_ef100_fini_vfreps(struct efx_nic *efx); 62 63 void efx_ef100_rep_rx_packet(struct efx_rep *efv, struct efx_rx_buffer *rx_buf); 64 /* Returns the representor corresponding to a VF m-port, or NULL 65 * @mport is an m-port label, *not* an m-port ID! 66 * Caller must hold rcu_read_lock(). 67 */ 68 struct efx_rep *efx_ef100_find_rep_by_mport(struct efx_nic *efx, u16 mport); 69 extern const struct net_device_ops efx_ef100_rep_netdev_ops; 70 void efx_ef100_init_reps(struct efx_nic *efx); 71 void efx_ef100_fini_reps(struct efx_nic *efx); 72 #endif /* EF100_REP_H */ 73