51a6588e8c
FW/HW can generally support the standard networking offloads on representors without any trouble. Add the ability for FW to advertise which features should be available on representors. Because representors are muxed on top of the vNIC we need to listen on feature changes of their lower devices, and update their features appropriately. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
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#ifndef NFP_NET_REPR_H
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#define NFP_NET_REPR_H
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struct metadata_dst;
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struct nfp_app;
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struct nfp_net;
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struct nfp_port;
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#include <net/dst_metadata.h>
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/**
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* struct nfp_reprs - container for representor netdevs
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* @num_reprs: Number of elements in reprs array
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* @reprs: Array of representor netdevs
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*/
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struct nfp_reprs {
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unsigned int num_reprs;
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struct net_device __rcu *reprs[0];
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};
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/**
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* struct nfp_repr_pcpu_stats
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* @rx_packets: Received packets
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* @rx_bytes: Received bytes
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* @tx_packets: Transmitted packets
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* @tx_bytes: Transmitted dropped
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* @tx_drops: Packets dropped on transmit
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* @syncp: Reference count
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*/
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struct nfp_repr_pcpu_stats {
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u64 rx_packets;
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u64 rx_bytes;
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u64 tx_packets;
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u64 tx_bytes;
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u64 tx_drops;
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struct u64_stats_sync syncp;
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};
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/**
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* struct nfp_repr - priv data for representor netdevs
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* @netdev: Back pointer to netdev
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* @dst: Destination for packet TX
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* @port: Port of representor
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* @app: APP handle
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* @stats: Statistic of packets hitting CPU
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* @app_priv: Pointer for APP data
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*/
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struct nfp_repr {
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struct net_device *netdev;
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struct metadata_dst *dst;
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struct nfp_port *port;
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struct nfp_app *app;
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struct nfp_repr_pcpu_stats __percpu *stats;
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void *app_priv;
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};
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/**
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* enum nfp_repr_type - type of representor
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* @NFP_REPR_TYPE_PHYS_PORT: external NIC port
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* @NFP_REPR_TYPE_PF: physical function
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* @NFP_REPR_TYPE_VF: virtual function
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* @__NFP_REPR_TYPE_MAX: number of representor types
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*/
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enum nfp_repr_type {
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NFP_REPR_TYPE_PHYS_PORT,
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NFP_REPR_TYPE_PF,
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NFP_REPR_TYPE_VF,
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__NFP_REPR_TYPE_MAX,
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};
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#define NFP_REPR_TYPE_MAX (__NFP_REPR_TYPE_MAX - 1)
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extern const struct net_device_ops nfp_repr_netdev_ops;
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static inline bool nfp_netdev_is_nfp_repr(struct net_device *netdev)
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{
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return netdev->netdev_ops == &nfp_repr_netdev_ops;
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}
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static inline int nfp_repr_get_port_id(struct net_device *netdev)
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{
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struct nfp_repr *priv = netdev_priv(netdev);
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return priv->dst->u.port_info.port_id;
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}
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struct net_device *
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nfp_repr_get_locked(struct nfp_app *app, struct nfp_reprs *set,
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unsigned int id);
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void nfp_repr_inc_rx_stats(struct net_device *netdev, unsigned int len);
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void
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nfp_repr_transfer_features(struct net_device *netdev, struct net_device *lower);
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int nfp_repr_init(struct nfp_app *app, struct net_device *netdev,
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u32 cmsg_port_id, struct nfp_port *port,
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struct net_device *pf_netdev);
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void nfp_repr_free(struct net_device *netdev);
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struct net_device *
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nfp_repr_alloc_mqs(struct nfp_app *app, unsigned int txqs, unsigned int rxqs);
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void nfp_repr_clean_and_free(struct nfp_repr *repr);
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void nfp_reprs_clean_and_free(struct nfp_app *app, struct nfp_reprs *reprs);
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void nfp_reprs_clean_and_free_by_type(struct nfp_app *app,
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enum nfp_repr_type type);
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struct nfp_reprs *nfp_reprs_alloc(unsigned int num_reprs);
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int nfp_reprs_resync_phys_ports(struct nfp_app *app);
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static inline struct net_device *nfp_repr_alloc(struct nfp_app *app)
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{
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return nfp_repr_alloc_mqs(app, 1, 1);
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}
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#endif /* NFP_NET_REPR_H */
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