fbnic_netdev.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/* Copyright (c) Meta Platforms, Inc. and affiliates. */
  3
  4#ifndef _FBNIC_NETDEV_H_
  5#define _FBNIC_NETDEV_H_
  6
  7#include <linux/phylink.h>
  8#include <linux/types.h>
  9
 10#include "fbnic_csr.h"
 11#include "fbnic_rpc.h"
 12#include "fbnic_txrx.h"
 13
 14#define FBNIC_MAX_NAPI_VECTORS		128u
 15#define FBNIC_MIN_RXD_PER_FRAME		2
 16
 17/* Natively supported tunnel GSO features (not thru GSO_PARTIAL) */
 18#define FBNIC_TUN_GSO_FEATURES		NETIF_F_GSO_IPXIP6
 19
 20struct fbnic_net {
 21	struct bpf_prog *xdp_prog;
 22
 23	struct fbnic_ring *tx[FBNIC_MAX_TXQS + FBNIC_MAX_XDPQS];
 24	struct fbnic_ring *rx[FBNIC_MAX_RXQS];
 25
 26	struct fbnic_napi_vector *napi[FBNIC_MAX_NAPI_VECTORS];
 27
 28	struct net_device *netdev;
 29	struct fbnic_dev *fbd;
 30
 31	u32 txq_size;
 32	u32 hpq_size;
 33	u32 ppq_size;
 34	u32 rcq_size;
 35
 36	u32 hds_thresh;
 37
 38	u16 rx_usecs;
 39	u16 tx_usecs;
 40
 41	u32 rx_max_frames;
 42
 43	u16 num_napi;
 44
 45	struct phylink *phylink;
 46	struct phylink_config phylink_config;
 47	struct phylink_pcs *pcs;
 48
 49	u8 aui;
 50	u8 fec;
 51
 52	/* Cached top bits of the HW time counter for 40b -> 64b conversion */
 53	u32 time_high;
 54	/* Protect readers of @time_offset, writers take @time_lock. */
 55	struct u64_stats_sync time_seq;
 56	/* Offset in ns between free running NIC PHC and time set via PTP
 57	 * clock callbacks
 58	 */
 59	s64 time_offset;
 60
 61	u16 num_tx_queues;
 62	u16 num_rx_queues;
 63
 64	u8 indir_tbl[FBNIC_RPC_RSS_TBL_COUNT][FBNIC_RPC_RSS_TBL_SIZE];
 65	u32 rss_key[FBNIC_RPC_RSS_KEY_DWORD_LEN];
 66	u32 rss_flow_hash[FBNIC_NUM_HASH_OPT];
 67
 68	/* Storage for stats after ring destruction */
 69	struct fbnic_queue_stats tx_stats;
 70	struct fbnic_queue_stats rx_stats;
 71	struct fbnic_queue_stats bdq_stats;
 72	u64 link_down_events;
 73
 74	/* Time stamping filter config */
 75	struct kernel_hwtstamp_config hwtstamp_config;
 76
 77	bool tx_pause;
 78};
 79
 80int __fbnic_open(struct fbnic_net *fbn);
 81void fbnic_up(struct fbnic_net *fbn);
 82void fbnic_down(struct fbnic_net *fbn);
 83void fbnic_down_noidle(struct fbnic_net *fbn);
 84
 85struct net_device *fbnic_netdev_alloc(struct fbnic_dev *fbd);
 86void fbnic_netdev_free(struct fbnic_dev *fbd);
 87int fbnic_netdev_register(struct net_device *netdev);
 88void fbnic_netdev_unregister(struct net_device *netdev);
 89void fbnic_reset_queues(struct fbnic_net *fbn,
 90			unsigned int tx, unsigned int rx);
 91
 92void fbnic_set_ethtool_ops(struct net_device *dev);
 93
 94int fbnic_ptp_setup(struct fbnic_dev *fbd);
 95void fbnic_ptp_destroy(struct fbnic_dev *fbd);
 96void fbnic_time_init(struct fbnic_net *fbn);
 97int fbnic_time_start(struct fbnic_net *fbn);
 98void fbnic_time_stop(struct fbnic_net *fbn);
 99
100void __fbnic_set_rx_mode(struct fbnic_dev *fbd);
101void fbnic_clear_rx_mode(struct fbnic_dev *fbd);
102
103void fbnic_phylink_get_pauseparam(struct net_device *netdev,
104				  struct ethtool_pauseparam *pause);
105int fbnic_phylink_set_pauseparam(struct net_device *netdev,
106				 struct ethtool_pauseparam *pause);
107int fbnic_phylink_ethtool_ksettings_get(struct net_device *netdev,
108					struct ethtool_link_ksettings *cmd);
109int fbnic_phylink_get_fecparam(struct net_device *netdev,
110			       struct ethtool_fecparam *fecparam);
111int fbnic_phylink_create(struct net_device *netdev);
112void fbnic_phylink_destroy(struct net_device *netdev);
113int fbnic_phylink_init(struct net_device *netdev);
114void fbnic_phylink_pmd_training_complete_notify(struct net_device *netdev);
115bool fbnic_check_split_frames(struct bpf_prog *prog,
116			      unsigned int mtu, u32 hds_threshold);
117#endif /* _FBNIC_NETDEV_H_ */