1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
|
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/* Copyright 2024 NXP */
#include <linux/fsl/enetc_mdio.h>
#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include "enetc_pf_common.h"
static void enetc_set_si_hw_addr(struct enetc_pf *pf, int si,
const u8 *mac_addr)
{
struct enetc_hw *hw = &pf->si->hw;
pf->ops->set_si_primary_mac(hw, si, mac_addr);
}
static void enetc_get_si_hw_addr(struct enetc_pf *pf, int si, u8 *mac_addr)
{
struct enetc_hw *hw = &pf->si->hw;
pf->ops->get_si_primary_mac(hw, si, mac_addr);
}
int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
struct enetc_pf *pf = enetc_si_priv(priv->si);
struct sockaddr *saddr = addr;
if (!is_valid_ether_addr(saddr->sa_data))
return -EADDRNOTAVAIL;
eth_hw_addr_set(ndev, saddr->sa_data);
enetc_set_si_hw_addr(pf, 0, saddr->sa_data);
return 0;
}
EXPORT_SYMBOL_GPL(enetc_pf_set_mac_addr);
static int enetc_setup_mac_address(struct device_node *np, struct enetc_pf *pf,
int si)
{
struct device *dev = &pf->si->pdev->dev;
u8 mac_addr[ETH_ALEN] = { 0 };
int err;
/* (1) try to get the MAC address from the device tree */
if (np) {
err = of_get_mac_address(np, mac_addr);
if (err == -EPROBE_DEFER)
return err;
}
/* (2) bootloader supplied MAC address */
if (is_zero_ether_addr(mac_addr))
enetc_get_si_hw_addr(pf, si, mac_addr);
/* (3) choose a random one */
if (is_zero_ether_addr(mac_addr)) {
eth_random_addr(mac_addr);
dev_info(dev, "no MAC address specified for SI%d, using %pM\n",
si, mac_addr);
}
enetc_set_si_hw_addr(pf, si, mac_addr);
return 0;
}
int enetc_setup_mac_addresses(struct device_node *np, struct enetc_pf *pf)
{
int err, i;
/* The PF might take its MAC from the device tree */
err = enetc_setup_mac_address(np, pf, 0);
if (err)
return err;
for (i = 0; i < pf->total_vfs; i++) {
err = enetc_setup_mac_address(NULL, pf, i + 1);
if (err)
return err;
}
return 0;
}
EXPORT_SYMBOL_GPL(enetc_setup_mac_addresses);
void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
const struct net_device_ops *ndev_ops)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
struct enetc_pf *pf = enetc_si_priv(si);
SET_NETDEV_DEV(ndev, &si->pdev->dev);
priv->ndev = ndev;
priv->si = si;
priv->dev = &si->pdev->dev;
si->ndev = ndev;
priv->msg_enable = (NETIF_MSG_WOL << 1) - 1;
priv->sysclk_freq = si->drvdata->sysclk_freq;
priv->max_frags = si->drvdata->max_frags;
ndev->netdev_ops = ndev_ops;
enetc_set_ethtool_ops(ndev);
ndev->watchdog_timeo = 5 * HZ;
ndev->max_mtu = ENETC_MAX_MTU;
ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK |
NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_GSO_UDP_L4;
ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_GSO_UDP_L4;
ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM |
NETIF_F_TSO | NETIF_F_TSO6;
ndev->priv_flags |= IFF_UNICAST_FLT;
if (si->drvdata->tx_csum)
priv->active_offloads |= ENETC_F_TXCSUM;
if (si->hw_features & ENETC_SI_F_LSO)
priv->active_offloads |= ENETC_F_LSO;
/* TODO: currently, i.MX95 ENETC driver does not support advanced features */
if (!is_enetc_rev1(si)) {
ndev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK);
goto end;
}
if (si->num_rss)
ndev->hw_features |= NETIF_F_RXHASH;
ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG |
NETDEV_XDP_ACT_NDO_XMIT_SG;
if (si->hw_features & ENETC_SI_F_PSFP && pf->ops->enable_psfp &&
!pf->ops->enable_psfp(priv)) {
priv->active_offloads |= ENETC_F_QCI;
ndev->features |= NETIF_F_HW_TC;
ndev->hw_features |= NETIF_F_HW_TC;
}
end:
/* pick up primary MAC address from SI */
enetc_load_primary_mac_addr(&si->hw, ndev);
}
EXPORT_SYMBOL_GPL(enetc_pf_netdev_setup);
static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np)
{
struct device *dev = &pf->si->pdev->dev;
struct enetc_mdio_priv *mdio_priv;
struct mii_bus *bus;
int err;
bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv));
if (!bus)
return -ENOMEM;
bus->name = "Freescale ENETC MDIO Bus";
bus->read = enetc_mdio_read_c22;
bus->write = enetc_mdio_write_c22;
bus->read_c45 = enetc_mdio_read_c45;
bus->write_c45 = enetc_mdio_write_c45;
bus->parent = dev;
mdio_priv = bus->priv;
mdio_priv->hw = &pf->si->hw;
mdio_priv->mdio_base = ENETC_EMDIO_BASE;
snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev));
err = of_mdiobus_register(bus, np);
if (err)
return dev_err_probe(dev, err, "cannot register MDIO bus\n");
pf->mdio = bus;
return 0;
}
static void enetc_mdio_remove(struct enetc_pf *pf)
{
if (pf->mdio)
mdiobus_unregister(pf->mdio);
}
static int enetc_imdio_create(struct enetc_pf *pf)
{
struct device *dev = &pf->si->pdev->dev;
struct enetc_mdio_priv *mdio_priv;
struct phylink_pcs *phylink_pcs;
struct mii_bus *bus;
int err;
if (!pf->ops->create_pcs) {
dev_err(dev, "Creating PCS is not supported\n");
return -EOPNOTSUPP;
}
bus = mdiobus_alloc_size(sizeof(*mdio_priv));
if (!bus)
return -ENOMEM;
bus->name = "Freescale ENETC internal MDIO Bus";
bus->read = enetc_mdio_read_c22;
bus->write = enetc_mdio_write_c22;
bus->read_c45 = enetc_mdio_read_c45;
bus->write_c45 = enetc_mdio_write_c45;
bus->parent = dev;
bus->phy_mask = ~0;
mdio_priv = bus->priv;
mdio_priv->hw = &pf->si->hw;
mdio_priv->mdio_base = ENETC_PM_IMDIO_BASE;
snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev));
err = mdiobus_register(bus);
if (err) {
dev_err(dev, "cannot register internal MDIO bus (%d)\n", err);
goto free_mdio_bus;
}
phylink_pcs = pf->ops->create_pcs(pf, bus);
if (IS_ERR(phylink_pcs)) {
err = PTR_ERR(phylink_pcs);
dev_err(dev, "cannot create lynx pcs (%d)\n", err);
goto unregister_mdiobus;
}
pf->imdio = bus;
pf->pcs = phylink_pcs;
return 0;
unregister_mdiobus:
mdiobus_unregister(bus);
free_mdio_bus:
mdiobus_free(bus);
return err;
}
static void enetc_imdio_remove(struct enetc_pf *pf)
{
if (pf->pcs && pf->ops->destroy_pcs)
pf->ops->destroy_pcs(pf->pcs);
if (pf->imdio) {
mdiobus_unregister(pf->imdio);
mdiobus_free(pf->imdio);
}
}
static bool enetc_port_has_pcs(struct enetc_pf *pf)
{
return (pf->if_mode == PHY_INTERFACE_MODE_SGMII ||
pf->if_mode == PHY_INTERFACE_MODE_1000BASEX ||
pf->if_mode == PHY_INTERFACE_MODE_2500BASEX ||
pf->if_mode == PHY_INTERFACE_MODE_USXGMII);
}
int enetc_mdiobus_create(struct enetc_pf *pf, struct device_node *node)
{
struct device_node *mdio_np;
int err;
mdio_np = of_get_child_by_name(node, "mdio");
if (mdio_np) {
err = enetc_mdio_probe(pf, mdio_np);
of_node_put(mdio_np);
if (err)
return err;
}
if (enetc_port_has_pcs(pf)) {
err = enetc_imdio_create(pf);
if (err) {
enetc_mdio_remove(pf);
return err;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(enetc_mdiobus_create);
void enetc_mdiobus_destroy(struct enetc_pf *pf)
{
enetc_mdio_remove(pf);
enetc_imdio_remove(pf);
}
EXPORT_SYMBOL_GPL(enetc_mdiobus_destroy);
int enetc_phylink_create(struct enetc_ndev_priv *priv, struct device_node *node,
const struct phylink_mac_ops *ops)
{
struct enetc_pf *pf = enetc_si_priv(priv->si);
struct phylink *phylink;
int err;
pf->phylink_config.dev = &priv->ndev->dev;
pf->phylink_config.type = PHYLINK_NETDEV;
pf->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
MAC_10 | MAC_100 | MAC_1000 | MAC_2500FD;
__set_bit(PHY_INTERFACE_MODE_INTERNAL,
pf->phylink_config.supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_SGMII,
pf->phylink_config.supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_1000BASEX,
pf->phylink_config.supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_2500BASEX,
pf->phylink_config.supported_interfaces);
__set_bit(PHY_INTERFACE_MODE_USXGMII,
pf->phylink_config.supported_interfaces);
phy_interface_set_rgmii(pf->phylink_config.supported_interfaces);
phylink = phylink_create(&pf->phylink_config, of_fwnode_handle(node),
pf->if_mode, ops);
if (IS_ERR(phylink)) {
err = PTR_ERR(phylink);
return err;
}
priv->phylink = phylink;
return 0;
}
EXPORT_SYMBOL_GPL(enetc_phylink_create);
void enetc_phylink_destroy(struct enetc_ndev_priv *priv)
{
phylink_destroy(priv->phylink);
}
EXPORT_SYMBOL_GPL(enetc_phylink_destroy);
MODULE_DESCRIPTION("NXP ENETC PF common functionality driver");
MODULE_LICENSE("Dual BSD/GPL");
|
