1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
4 #include <linux/lockdep.h>
5 #include <linux/netdevice.h>
7 #include "nfpcore/nfp_cpp.h"
8 #include "nfpcore/nfp_nsp.h"
14 struct nfp_port *nfp_port_from_netdev(struct net_device *netdev)
16 if (nfp_netdev_is_nfp_net(netdev)) {
17 struct nfp_net *nn = netdev_priv(netdev);
22 if (nfp_netdev_is_nfp_repr(netdev)) {
23 struct nfp_repr *repr = netdev_priv(netdev);
28 WARN(1, "Unknown netdev type for nfp_port\n");
33 int nfp_port_get_port_parent_id(struct net_device *netdev,
34 struct netdev_phys_item_id *ppid)
36 struct nfp_port *port;
39 port = nfp_port_from_netdev(netdev);
43 ppid->id_len = nfp_cpp_serial(port->app->cpp, &serial);
44 memcpy(&ppid->id, serial, ppid->id_len);
49 int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
52 struct nfp_port *port;
54 port = nfp_port_from_netdev(netdev);
58 return nfp_app_setup_tc(port->app, netdev, type, type_data);
61 int nfp_port_set_features(struct net_device *netdev, netdev_features_t features)
63 struct nfp_port *port;
65 port = nfp_port_from_netdev(netdev);
69 if ((netdev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
70 port->tc_offload_cnt) {
71 netdev_err(netdev, "Cannot disable HW TC offload while offloads active\n");
79 nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id)
81 struct nfp_port *port;
83 lockdep_assert_held(&pf->lock);
85 if (type != NFP_PORT_PHYS_PORT)
88 list_for_each_entry(port, &pf->ports, port_list)
89 if (port->eth_id == id)
95 struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port)
99 if (port->type != NFP_PORT_PHYS_PORT)
102 return port->eth_port;
105 struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port)
107 if (!__nfp_port_get_eth_port(port))
110 if (test_bit(NFP_PORT_CHANGED, &port->flags))
111 if (nfp_net_refresh_eth_port(port))
114 return __nfp_port_get_eth_port(port);
118 nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
120 struct nfp_eth_table_port *eth_port;
121 struct nfp_port *port;
124 port = nfp_port_from_netdev(netdev);
128 switch (port->type) {
129 case NFP_PORT_PHYS_PORT:
130 eth_port = __nfp_port_get_eth_port(port);
134 if (!eth_port->is_split)
135 n = snprintf(name, len, "p%d", eth_port->label_port);
137 n = snprintf(name, len, "p%ds%d", eth_port->label_port,
138 eth_port->label_subport);
140 case NFP_PORT_PF_PORT:
142 n = snprintf(name, len, "pf%d", port->pf_id);
144 n = snprintf(name, len, "pf%ds%d", port->pf_id,
147 case NFP_PORT_VF_PORT:
148 n = snprintf(name, len, "pf%dvf%d", port->pf_id, port->vf_id);
161 * nfp_port_configure() - helper to set the interface configured bit
162 * @netdev: net_device instance
163 * @configed: Desired state
165 * Helper to set the ifup/ifdown state on the PHY only if there is a physical
166 * interface associated with the netdev.
169 * 0 - configuration successful (or no change);
170 * -ERRNO - configuration failed.
172 int nfp_port_configure(struct net_device *netdev, bool configed)
174 struct nfp_eth_table_port *eth_port;
175 struct nfp_port *port;
178 port = nfp_port_from_netdev(netdev);
179 eth_port = __nfp_port_get_eth_port(port);
182 if (port->eth_forced)
185 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, configed);
186 return err < 0 && err != -EOPNOTSUPP ? err : 0;
189 int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
190 struct nfp_port *port, unsigned int id)
192 /* Check if vNIC has external port associated and cfg is OK */
193 if (!pf->eth_tbl || id >= pf->eth_tbl->count) {
195 "NSP port entries don't match vNICs (no entry %d)\n",
199 if (pf->eth_tbl->ports[id].override_changed) {
201 "Config changed for port #%d, reboot required before port will be operational\n",
202 pf->eth_tbl->ports[id].index);
203 port->type = NFP_PORT_INVALID;
207 port->eth_port = &pf->eth_tbl->ports[id];
208 port->eth_id = pf->eth_tbl->ports[id].index;
209 if (pf->mac_stats_mem)
211 pf->mac_stats_mem + port->eth_id * NFP_MAC_STATS_SIZE;
217 nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
218 struct net_device *netdev)
220 struct nfp_port *port;
222 port = kzalloc(sizeof(*port), GFP_KERNEL);
224 return ERR_PTR(-ENOMEM);
226 port->netdev = netdev;
230 list_add_tail(&port->port_list, &app->pf->ports);
235 void nfp_port_free(struct nfp_port *port)
239 list_del(&port->port_list);