diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_repr.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_repr.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h new file mode 100644 index 000000000000..32179cad062a --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2017 Netronome Systems, Inc. + * + * This software is dual licensed under the GNU General License Version 2, + * June 1991 as shown in the file COPYING in the top-level directory of this + * source tree or the BSD 2-Clause License provided below. You have the + * option to license this software under the complete terms of either license. + * + * The BSD 2-Clause License: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * 1. Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * 2. Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef NFP_NET_REPR_H +#define NFP_NET_REPR_H + +struct metadata_dst; +struct nfp_net; +struct nfp_port; + +#include <net/dst_metadata.h> + +/** + * struct nfp_reprs - container for representor netdevs + * @num_reprs: Number of elements in reprs array + * @reprs: Array of representor netdevs + */ +struct nfp_reprs { + unsigned int num_reprs; + struct net_device *reprs[0]; +}; + +/** + * struct nfp_repr_pcpu_stats + * @rx_packets: Received packets + * @rx_bytes: Received bytes + * @tx_packets: Transmitted packets + * @tx_bytes: Transmitted dropped + * @tx_drops: Packets dropped on transmit + * @syncp: Reference count + */ +struct nfp_repr_pcpu_stats { + u64 rx_packets; + u64 rx_bytes; + u64 tx_packets; + u64 tx_bytes; + u64 tx_drops; + struct u64_stats_sync syncp; +}; + +/** + * struct nfp_repr - priv data for representor netdevs + * @netdev: Back pointer to netdev + * @dst: Destination for packet TX + * @port: Port of representor + * @app: APP handle + * @stats: Statistic of packets hitting CPU + */ +struct nfp_repr { + struct net_device *netdev; + struct metadata_dst *dst; + struct nfp_port *port; + struct nfp_app *app; + struct nfp_repr_pcpu_stats __percpu *stats; +}; + +/** + * enum nfp_repr_type - type of representor + * @NFP_REPR_TYPE_PHYS_PORT: external NIC port + * @NFP_REPR_TYPE_PF: physical function + * @NFP_REPR_TYPE_VF: virtual function + */ +enum nfp_repr_type { + NFP_REPR_TYPE_PHYS_PORT, + NFP_REPR_TYPE_PF, + NFP_REPR_TYPE_VF, + + __NFP_REPR_TYPE_MAX, +}; +#define NFP_REPR_TYPE_MAX (__NFP_REPR_TYPE_MAX - 1) + +extern const struct net_device_ops nfp_repr_netdev_ops; + +static inline bool nfp_netdev_is_nfp_repr(struct net_device *netdev) +{ + return netdev->netdev_ops == &nfp_repr_netdev_ops; +} + +static inline int nfp_repr_get_port_id(struct net_device *netdev) +{ + struct nfp_repr *priv = netdev_priv(netdev); + + return priv->dst->u.port_info.port_id; +} + +void nfp_repr_inc_rx_stats(struct net_device *netdev, unsigned int len); +int nfp_repr_init(struct nfp_app *app, struct net_device *netdev, + u32 cmsg_port_id, struct nfp_port *port, + struct net_device *pf_netdev); +struct net_device *nfp_repr_alloc(struct nfp_app *app); +void +nfp_reprs_clean_and_free(struct nfp_reprs *reprs); +void +nfp_reprs_clean_and_free_by_type(struct nfp_app *app, + enum nfp_repr_type type); +struct nfp_reprs *nfp_reprs_alloc(unsigned int num_reprs); + +#endif /* NFP_NET_REPR_H */ |