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- /* SPDX-License-Identifier: GPL-2.0 */
- /* Copyright (c) Meta Platforms, Inc. and affiliates. */
- #ifndef _FBNIC_NETDEV_H_
- #define _FBNIC_NETDEV_H_
- #include <linux/phylink.h>
- #include <linux/types.h>
- #include "fbnic_csr.h"
- #include "fbnic_rpc.h"
- #include "fbnic_txrx.h"
- #define FBNIC_MAX_NAPI_VECTORS 128u
- #define FBNIC_MIN_RXD_PER_FRAME 2
- /* Natively supported tunnel GSO features (not thru GSO_PARTIAL) */
- #define FBNIC_TUN_GSO_FEATURES NETIF_F_GSO_IPXIP6
- struct fbnic_net {
- struct bpf_prog *xdp_prog;
- struct fbnic_ring *tx[FBNIC_MAX_TXQS + FBNIC_MAX_XDPQS];
- struct fbnic_ring *rx[FBNIC_MAX_RXQS];
- struct fbnic_napi_vector *napi[FBNIC_MAX_NAPI_VECTORS];
- struct net_device *netdev;
- struct fbnic_dev *fbd;
- u32 txq_size;
- u32 hpq_size;
- u32 ppq_size;
- u32 rcq_size;
- u32 hds_thresh;
- u16 rx_usecs;
- u16 tx_usecs;
- u32 rx_max_frames;
- u16 num_napi;
- struct phylink *phylink;
- struct phylink_config phylink_config;
- struct phylink_pcs *pcs;
- u8 aui;
- u8 fec;
- /* Cached top bits of the HW time counter for 40b -> 64b conversion */
- u32 time_high;
- /* Protect readers of @time_offset, writers take @time_lock. */
- struct u64_stats_sync time_seq;
- /* Offset in ns between free running NIC PHC and time set via PTP
- * clock callbacks
- */
- s64 time_offset;
- u16 num_tx_queues;
- u16 num_rx_queues;
- u8 indir_tbl[FBNIC_RPC_RSS_TBL_COUNT][FBNIC_RPC_RSS_TBL_SIZE];
- u32 rss_key[FBNIC_RPC_RSS_KEY_DWORD_LEN];
- u32 rss_flow_hash[FBNIC_NUM_HASH_OPT];
- /* Storage for stats after ring destruction */
- struct fbnic_queue_stats tx_stats;
- struct fbnic_queue_stats rx_stats;
- struct fbnic_queue_stats bdq_stats;
- u64 link_down_events;
- /* Time stamping filter config */
- struct kernel_hwtstamp_config hwtstamp_config;
- bool tx_pause;
- };
- int __fbnic_open(struct fbnic_net *fbn);
- void fbnic_up(struct fbnic_net *fbn);
- void fbnic_down(struct fbnic_net *fbn);
- void fbnic_down_noidle(struct fbnic_net *fbn);
- struct net_device *fbnic_netdev_alloc(struct fbnic_dev *fbd);
- void fbnic_netdev_free(struct fbnic_dev *fbd);
- int fbnic_netdev_register(struct net_device *netdev);
- void fbnic_netdev_unregister(struct net_device *netdev);
- void fbnic_reset_queues(struct fbnic_net *fbn,
- unsigned int tx, unsigned int rx);
- void fbnic_set_ethtool_ops(struct net_device *dev);
- int fbnic_ptp_setup(struct fbnic_dev *fbd);
- void fbnic_ptp_destroy(struct fbnic_dev *fbd);
- void fbnic_time_init(struct fbnic_net *fbn);
- int fbnic_time_start(struct fbnic_net *fbn);
- void fbnic_time_stop(struct fbnic_net *fbn);
- void __fbnic_set_rx_mode(struct fbnic_dev *fbd);
- void fbnic_clear_rx_mode(struct fbnic_dev *fbd);
- void fbnic_phylink_get_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *pause);
- int fbnic_phylink_set_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *pause);
- int fbnic_phylink_ethtool_ksettings_get(struct net_device *netdev,
- struct ethtool_link_ksettings *cmd);
- int fbnic_phylink_get_fecparam(struct net_device *netdev,
- struct ethtool_fecparam *fecparam);
- int fbnic_phylink_create(struct net_device *netdev);
- void fbnic_phylink_destroy(struct net_device *netdev);
- int fbnic_phylink_init(struct net_device *netdev);
- void fbnic_phylink_pmd_training_complete_notify(struct net_device *netdev);
- bool fbnic_check_split_frames(struct bpf_prog *prog,
- unsigned int mtu, u32 hds_threshold);
- #endif /* _FBNIC_NETDEV_H_ */
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