nfp: add flower app (1025351a) · Commits · 戴 / test

drivers/net/ethernet/netronome/nfp/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@ nfp-objs := \
		bpf/main.o \
		bpf/offload.o \
		flower/cmsg.o \
		flower/main.o \
		nic/main.o

		ifeq ($(CONFIG_BPF_SYSCALL),y)

drivers/net/ethernet/netronome/nfp/flower/main.c

0 → 100644

+294 −0

Original line number	Diff line number	Diff line
		/*
		* 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.
		*/

		#include <linux/etherdevice.h>
		#include <linux/pci.h>
		#include <linux/skbuff.h>
		#include <net/devlink.h>
		#include <net/dst_metadata.h>

		#include "../nfpcore/nfp_cpp.h"
		#include "../nfpcore/nfp_nsp.h"
		#include "../nfp_app.h"
		#include "../nfp_main.h"
		#include "../nfp_net.h"
		#include "../nfp_net_repr.h"
		#include "../nfp_port.h"
		#include "./cmsg.h"

		/**
		* struct nfp_flower_priv - Flower APP per-vNIC priv data
		* @nn: Pointer to vNIC
		*/
		struct nfp_flower_priv {
		struct nfp_net *nn;
		};

		static const char nfp_flower_extra_cap(struct nfp_app app, struct nfp_net *nn)
		{
		return "FLOWER";
		}

		static enum devlink_eswitch_mode eswitch_mode_get(struct nfp_app *app)
		{
		return DEVLINK_ESWITCH_MODE_SWITCHDEV;
		}

		static enum nfp_repr_type
		nfp_flower_repr_get_type_and_port(struct nfp_app app, u32 port_id, u8 port)
		{
		switch (FIELD_GET(NFP_FLOWER_CMSG_PORT_TYPE, port_id)) {
		case NFP_FLOWER_CMSG_PORT_TYPE_PHYS_PORT:
		*port = FIELD_GET(NFP_FLOWER_CMSG_PORT_PHYS_PORT_NUM,
		port_id);
		return NFP_REPR_TYPE_PHYS_PORT;

		case NFP_FLOWER_CMSG_PORT_TYPE_PCIE_PORT:
		*port = FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC, port_id);
		if (FIELD_GET(NFP_FLOWER_CMSG_PORT_VNIC_TYPE, port_id) ==
		NFP_FLOWER_CMSG_PORT_VNIC_TYPE_PF)
		return NFP_REPR_TYPE_PF;
		else
		return NFP_REPR_TYPE_VF;
		}

		return NFP_FLOWER_CMSG_PORT_TYPE_UNSPEC;
		}

		static struct net_device *
		nfp_flower_repr_get(struct nfp_app *app, u32 port_id)
		{
		enum nfp_repr_type repr_type;
		struct nfp_reprs *reprs;
		u8 port = 0;

		repr_type = nfp_flower_repr_get_type_and_port(app, port_id, &port);

		reprs = rcu_dereference(app->reprs[repr_type]);
		if (!reprs)
		return NULL;

		if (port >= reprs->num_reprs)
		return NULL;

		return reprs->reprs[port];
		}

		static void
		nfp_flower_repr_netdev_get_stats64(struct net_device *netdev,
		struct rtnl_link_stats64 *stats)
		{
		struct nfp_repr *repr = netdev_priv(netdev);
		enum nfp_repr_type type;
		u32 port_id;
		u8 port = 0;

		port_id = repr->dst->u.port_info.port_id;
		type = nfp_flower_repr_get_type_and_port(repr->app, port_id, &port);
		nfp_repr_get_stats64(repr->app, type, port, stats);
		}

		static int nfp_flower_repr_netdev_open(struct net_device *netdev)
		{
		int err;

		err = nfp_flower_cmsg_portmod(netdev, true);
		if (err)
		return err;

		netif_carrier_on(netdev);
		netif_tx_wake_all_queues(netdev);

		return 0;
		}

		static int nfp_flower_repr_netdev_stop(struct net_device *netdev)
		{
		netif_carrier_off(netdev);
		netif_tx_disable(netdev);

		return nfp_flower_cmsg_portmod(netdev, false);
		}

		static const struct net_device_ops nfp_flower_repr_netdev_ops = {
		.ndo_open = nfp_flower_repr_netdev_open,
		.ndo_stop = nfp_flower_repr_netdev_stop,
		.ndo_start_xmit = nfp_repr_xmit,
		.ndo_get_stats64 = nfp_flower_repr_netdev_get_stats64,
		.ndo_has_offload_stats = nfp_repr_has_offload_stats,
		.ndo_get_offload_stats = nfp_repr_get_offload_stats,
		};

		static void nfp_flower_stop(struct nfp_app *app)
		{
		nfp_reprs_clean_and_free_by_type(app, NFP_REPR_TYPE_PHYS_PORT);
		}

		static int nfp_flower_start(struct nfp_app *app)
		{
		struct nfp_eth_table *eth_tbl = app->pf->eth_tbl;
		struct nfp_flower_priv *priv = app->priv;
		struct nfp_reprs reprs, old_reprs;
		unsigned int i;
		int err;

		reprs = nfp_reprs_alloc(eth_tbl->max_index + 1);
		if (!reprs)
		return -ENOMEM;

		for (i = 0; i < eth_tbl->count; i++) {
		int phys_port = eth_tbl->ports[i].index;
		struct nfp_port *port;
		u32 cmsg_port_id;

		reprs->reprs[phys_port] = nfp_repr_alloc(app);
		if (!reprs->reprs[phys_port]) {
		err = -ENOMEM;
		goto err_reprs_clean;
		}

		port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT,
		reprs->reprs[phys_port]);
		if (IS_ERR(port)) {
		err = PTR_ERR(port);
		goto err_reprs_clean;
		}
		err = nfp_port_init_phy_port(app->pf, app, port, i);
		if (err) {
		nfp_port_free(port);
		goto err_reprs_clean;
		}

		SET_NETDEV_DEV(reprs->reprs[phys_port], &priv->nn->pdev->dev);
		nfp_net_get_mac_addr(app->pf, port,
		eth_tbl->ports[i].eth_index);

		cmsg_port_id = nfp_flower_cmsg_phys_port(phys_port);
		err = nfp_repr_init(app, reprs->reprs[phys_port],
		&nfp_flower_repr_netdev_ops,
		cmsg_port_id, port, priv->nn->dp.netdev);
		if (err) {
		nfp_port_free(port);
		goto err_reprs_clean;
		}

		nfp_info(app->cpp, "Phys Port %d Representor(%s) created\n",
		phys_port, reprs->reprs[phys_port]->name);
		}

		old_reprs = nfp_app_reprs_set(app, NFP_REPR_TYPE_PHYS_PORT, reprs);
		if (IS_ERR(old_reprs)) {
		err = PTR_ERR(old_reprs);
		goto err_reprs_clean;
		}

		return 0;
		err_reprs_clean:
		nfp_reprs_clean_and_free(reprs);
		return err;
		}

		static void nfp_flower_vnic_clean(struct nfp_app app, struct nfp_net nn)
		{
		kfree(app->priv);
		app->priv = NULL;
		}

		static int nfp_flower_vnic_init(struct nfp_app app, struct nfp_net nn,
		unsigned int id)
		{
		struct nfp_flower_priv *priv;

		if (id > 0) {
		nfp_warn(app->cpp, "FlowerNIC doesn't support more than one data vNIC\n");
		goto err_invalid_port;
		}

		priv = kzalloc(sizeof(*priv), GFP_KERNEL);
		if (!priv)
		return -ENOMEM;
		app->priv = priv;
		priv->nn = nn;

		eth_hw_addr_random(nn->dp.netdev);
		netif_keep_dst(nn->dp.netdev);

		return 0;

		err_invalid_port:
		nn->port = nfp_port_alloc(app, NFP_PORT_INVALID, nn->dp.netdev);
		return PTR_ERR_OR_ZERO(nn->port);
		}

		static int nfp_flower_init(struct nfp_app *app)
		{
		const struct nfp_pf *pf = app->pf;

		if (!pf->eth_tbl) {
		nfp_warn(app->cpp, "FlowerNIC requires eth table\n");
		return -EINVAL;
		}

		if (!pf->mac_stats_bar) {
		nfp_warn(app->cpp, "FlowerNIC requires mac_stats BAR\n");
		return -EINVAL;
		}

		if (!pf->vf_cfg_bar) {
		nfp_warn(app->cpp, "FlowerNIC requires vf_cfg BAR\n");
		return -EINVAL;
		}

		return 0;
		}

		const struct nfp_app_type app_flower = {
		.id = NFP_APP_FLOWER_NIC,
		.name = "flower",
		.ctrl_has_meta = true,

		.extra_cap = nfp_flower_extra_cap,

		.init = nfp_flower_init,

		.vnic_init = nfp_flower_vnic_init,
		.vnic_clean = nfp_flower_vnic_clean,

		.start = nfp_flower_start,
		.stop = nfp_flower_stop,

		.ctrl_msg_rx = nfp_flower_cmsg_rx,

		.eswitch_mode_get = eswitch_mode_get,
		.repr_get = nfp_flower_repr_get,
		};

drivers/net/ethernet/netronome/nfp/nfp_app.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,7 @@
		static const struct nfp_app_type *apps[] = {
		&app_nic,
		&app_bpf,
		&app_flower,
		};

		const char nfp_app_mip_name(struct nfp_app app)

drivers/net/ethernet/netronome/nfp/nfp_app.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -52,10 +52,12 @@ struct nfp_net;
		enum nfp_app_id {
		NFP_APP_CORE_NIC = 0x1,
		NFP_APP_BPF_NIC = 0x2,
		NFP_APP_FLOWER_NIC = 0x3,
		};

		extern const struct nfp_app_type app_nic;
		extern const struct nfp_app_type app_bpf;
		extern const struct nfp_app_type app_flower;

		/**
		* struct nfp_app_type - application definition
		@@ -119,6 +121,7 @@ struct nfp_app_type {
		* @ctrl: pointer to ctrl vNIC struct
		* @reprs: array of pointers to representors
		* @type: pointer to const application ops and info
		* @priv: app-specific priv data
		*/
		struct nfp_app {
		struct pci_dev *pdev;
		@@ -129,6 +132,7 @@ struct nfp_app {
		struct nfp_reprs __rcu *reprs[NFP_REPR_TYPE_MAX + 1];

		const struct nfp_app_type *type;
		void *priv;
		};

		bool nfp_ctrl_tx(struct nfp_net nn, struct sk_buff skb);

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