diff options
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/main.c | 294 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_app.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_app.h | 4 |
4 files changed, 300 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/Makefile b/drivers/net/ethernet/netronome/nfp/Makefile index e14f62863add..10b556b2c59d 100644 --- a/drivers/net/ethernet/netronome/nfp/Makefile +++ b/drivers/net/ethernet/netronome/nfp/Makefile @@ -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) diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c new file mode 100644 index 000000000000..54d8180317ec --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -0,0 +1,294 @@ +/* + * 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, +}; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.c b/drivers/net/ethernet/netronome/nfp/nfp_app.c index 2b71050dc5e4..5620de05c996 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.c @@ -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) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h index 36949b3e91c1..ae2d02753d1a 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_app.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h @@ -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); |