This source file includes following definitions.
- nfp_port_from_netdev
- nfp_port_get_port_parent_id
- nfp_port_setup_tc
- nfp_port_set_features
- nfp_port_from_id
- __nfp_port_get_eth_port
- nfp_port_get_eth_port
- nfp_port_get_phys_port_name
- nfp_port_configure
- nfp_port_init_phy_port
- nfp_port_alloc
- nfp_port_free
1
2
3
4 #include <linux/lockdep.h>
5 #include <linux/netdevice.h>
6
7 #include "nfpcore/nfp_cpp.h"
8 #include "nfpcore/nfp_nsp.h"
9 #include "nfp_app.h"
10 #include "nfp_main.h"
11 #include "nfp_net.h"
12 #include "nfp_port.h"
13
14 struct nfp_port *nfp_port_from_netdev(struct net_device *netdev)
15 {
16 if (nfp_netdev_is_nfp_net(netdev)) {
17 struct nfp_net *nn = netdev_priv(netdev);
18
19 return nn->port;
20 }
21
22 if (nfp_netdev_is_nfp_repr(netdev)) {
23 struct nfp_repr *repr = netdev_priv(netdev);
24
25 return repr->port;
26 }
27
28 WARN(1, "Unknown netdev type for nfp_port\n");
29
30 return NULL;
31 }
32
33 int nfp_port_get_port_parent_id(struct net_device *netdev,
34 struct netdev_phys_item_id *ppid)
35 {
36 struct nfp_port *port;
37 const u8 *serial;
38
39 port = nfp_port_from_netdev(netdev);
40 if (!port)
41 return -EOPNOTSUPP;
42
43 ppid->id_len = nfp_cpp_serial(port->app->cpp, &serial);
44 memcpy(&ppid->id, serial, ppid->id_len);
45
46 return 0;
47 }
48
49 int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
50 void *type_data)
51 {
52 struct nfp_port *port;
53
54 port = nfp_port_from_netdev(netdev);
55 if (!port)
56 return -EOPNOTSUPP;
57
58 return nfp_app_setup_tc(port->app, netdev, type, type_data);
59 }
60
61 int nfp_port_set_features(struct net_device *netdev, netdev_features_t features)
62 {
63 struct nfp_port *port;
64
65 port = nfp_port_from_netdev(netdev);
66 if (!port)
67 return 0;
68
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");
72 return -EBUSY;
73 }
74
75 return 0;
76 }
77
78 struct nfp_port *
79 nfp_port_from_id(struct nfp_pf *pf, enum nfp_port_type type, unsigned int id)
80 {
81 struct nfp_port *port;
82
83 lockdep_assert_held(&pf->lock);
84
85 if (type != NFP_PORT_PHYS_PORT)
86 return NULL;
87
88 list_for_each_entry(port, &pf->ports, port_list)
89 if (port->eth_id == id)
90 return port;
91
92 return NULL;
93 }
94
95 struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port)
96 {
97 if (!port)
98 return NULL;
99 if (port->type != NFP_PORT_PHYS_PORT)
100 return NULL;
101
102 return port->eth_port;
103 }
104
105 struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port)
106 {
107 if (!__nfp_port_get_eth_port(port))
108 return NULL;
109
110 if (test_bit(NFP_PORT_CHANGED, &port->flags))
111 if (nfp_net_refresh_eth_port(port))
112 return NULL;
113
114 return __nfp_port_get_eth_port(port);
115 }
116
117 int
118 nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
119 {
120 struct nfp_eth_table_port *eth_port;
121 struct nfp_port *port;
122 int n;
123
124 port = nfp_port_from_netdev(netdev);
125 if (!port)
126 return -EOPNOTSUPP;
127
128 switch (port->type) {
129 case NFP_PORT_PHYS_PORT:
130 eth_port = __nfp_port_get_eth_port(port);
131 if (!eth_port)
132 return -EOPNOTSUPP;
133
134 if (!eth_port->is_split)
135 n = snprintf(name, len, "p%d", eth_port->label_port);
136 else
137 n = snprintf(name, len, "p%ds%d", eth_port->label_port,
138 eth_port->label_subport);
139 break;
140 case NFP_PORT_PF_PORT:
141 if (!port->pf_split)
142 n = snprintf(name, len, "pf%d", port->pf_id);
143 else
144 n = snprintf(name, len, "pf%ds%d", port->pf_id,
145 port->pf_split_id);
146 break;
147 case NFP_PORT_VF_PORT:
148 n = snprintf(name, len, "pf%dvf%d", port->pf_id, port->vf_id);
149 break;
150 default:
151 return -EOPNOTSUPP;
152 }
153
154 if (n >= len)
155 return -EINVAL;
156
157 return 0;
158 }
159
160
161
162
163
164
165
166
167
168
169
170
171
172 int nfp_port_configure(struct net_device *netdev, bool configed)
173 {
174 struct nfp_eth_table_port *eth_port;
175 struct nfp_port *port;
176 int err;
177
178 port = nfp_port_from_netdev(netdev);
179 eth_port = __nfp_port_get_eth_port(port);
180 if (!eth_port)
181 return 0;
182 if (port->eth_forced)
183 return 0;
184
185 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, configed);
186 return err < 0 && err != -EOPNOTSUPP ? err : 0;
187 }
188
189 int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
190 struct nfp_port *port, unsigned int id)
191 {
192
193 if (!pf->eth_tbl || id >= pf->eth_tbl->count) {
194 nfp_err(app->cpp,
195 "NSP port entries don't match vNICs (no entry %d)\n",
196 id);
197 return -EINVAL;
198 }
199 if (pf->eth_tbl->ports[id].override_changed) {
200 nfp_warn(app->cpp,
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;
204 return 0;
205 }
206
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)
210 port->eth_stats =
211 pf->mac_stats_mem + port->eth_id * NFP_MAC_STATS_SIZE;
212
213 return 0;
214 }
215
216 struct nfp_port *
217 nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
218 struct net_device *netdev)
219 {
220 struct nfp_port *port;
221
222 port = kzalloc(sizeof(*port), GFP_KERNEL);
223 if (!port)
224 return ERR_PTR(-ENOMEM);
225
226 port->netdev = netdev;
227 port->type = type;
228 port->app = app;
229
230 list_add_tail(&port->port_list, &app->pf->ports);
231
232 return port;
233 }
234
235 void nfp_port_free(struct nfp_port *port)
236 {
237 if (!port)
238 return;
239 list_del(&port->port_list);
240 kfree(port);
241 }