1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /* Copyright 2024-2026 NXP */
3
4 #include <linux/fsl/enetc_mdio.h>
5 #include <linux/of_mdio.h>
6 #include <linux/of_net.h>
7
8 #include "enetc_pf_common.h"
9
enetc_set_si_hw_addr(struct enetc_pf * pf,int si,const u8 * mac_addr)10 void enetc_set_si_hw_addr(struct enetc_pf *pf, int si, const u8 *mac_addr)
11 {
12 struct enetc_hw *hw = &pf->si->hw;
13
14 pf->ops->set_si_primary_mac(hw, si, mac_addr);
15 }
16 EXPORT_SYMBOL_GPL(enetc_set_si_hw_addr);
17
enetc_get_si_hw_addr(struct enetc_pf * pf,int si,u8 * mac_addr)18 static void enetc_get_si_hw_addr(struct enetc_pf *pf, int si, u8 *mac_addr)
19 {
20 struct enetc_hw *hw = &pf->si->hw;
21
22 pf->ops->get_si_primary_mac(hw, si, mac_addr);
23 }
24
enetc_pf_set_mac_addr(struct net_device * ndev,void * addr)25 int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr)
26 {
27 struct enetc_ndev_priv *priv = netdev_priv(ndev);
28 struct enetc_pf *pf = enetc_si_priv(priv->si);
29 struct sockaddr *saddr = addr;
30
31 if (!is_valid_ether_addr(saddr->sa_data))
32 return -EADDRNOTAVAIL;
33
34 eth_hw_addr_set(ndev, saddr->sa_data);
35 enetc_set_si_hw_addr(pf, 0, saddr->sa_data);
36
37 return 0;
38 }
39 EXPORT_SYMBOL_GPL(enetc_pf_set_mac_addr);
40
enetc_setup_mac_address(struct device_node * np,struct enetc_pf * pf,int si)41 static int enetc_setup_mac_address(struct device_node *np, struct enetc_pf *pf,
42 int si)
43 {
44 struct device *dev = &pf->si->pdev->dev;
45 u8 mac_addr[ETH_ALEN] = { 0 };
46 int err;
47
48 /* (1) try to get the MAC address from the device tree */
49 if (np) {
50 err = of_get_mac_address(np, mac_addr);
51 if (err == -EPROBE_DEFER)
52 return err;
53 }
54
55 /* (2) bootloader supplied MAC address */
56 if (is_zero_ether_addr(mac_addr))
57 enetc_get_si_hw_addr(pf, si, mac_addr);
58
59 /* (3) choose a random one */
60 if (is_zero_ether_addr(mac_addr)) {
61 eth_random_addr(mac_addr);
62 dev_info(dev, "no MAC address specified for SI%d, using %pM\n",
63 si, mac_addr);
64 }
65
66 enetc_set_si_hw_addr(pf, si, mac_addr);
67
68 return 0;
69 }
70
enetc_setup_mac_addresses(struct device_node * np,struct enetc_pf * pf)71 int enetc_setup_mac_addresses(struct device_node *np, struct enetc_pf *pf)
72 {
73 int err, i;
74
75 /* The PF might take its MAC from the device tree */
76 err = enetc_setup_mac_address(np, pf, 0);
77 if (err)
78 return err;
79
80 for (i = 0; i < pf->total_vfs; i++) {
81 err = enetc_setup_mac_address(NULL, pf, i + 1);
82 if (err)
83 return err;
84 }
85
86 return 0;
87 }
88 EXPORT_SYMBOL_GPL(enetc_setup_mac_addresses);
89
enetc_set_si_uc_promisc(struct enetc_si * si,int si_id,bool promisc)90 void enetc_set_si_uc_promisc(struct enetc_si *si, int si_id, bool promisc)
91 {
92 struct enetc_hw *hw = &si->hw;
93 int psipmmr_off;
94 u32 val;
95
96 if (is_enetc_rev1(si))
97 psipmmr_off = ENETC_PSIPMMR;
98 else
99 psipmmr_off = ENETC4_PSIPMMR;
100
101 val = enetc_port_rd(hw, psipmmr_off);
102
103 if (promisc)
104 val |= PSIPMMR_SI_MAC_UP(si_id);
105 else
106 val &= ~PSIPMMR_SI_MAC_UP(si_id);
107
108 enetc_port_wr(hw, psipmmr_off, val);
109 }
110 EXPORT_SYMBOL_GPL(enetc_set_si_uc_promisc);
111
enetc_set_si_mc_promisc(struct enetc_si * si,int si_id,bool promisc)112 void enetc_set_si_mc_promisc(struct enetc_si *si, int si_id, bool promisc)
113 {
114 struct enetc_hw *hw = &si->hw;
115 int psipmmr_off;
116 u32 val;
117
118 if (is_enetc_rev1(si))
119 psipmmr_off = ENETC_PSIPMMR;
120 else
121 psipmmr_off = ENETC4_PSIPMMR;
122
123 val = enetc_port_rd(hw, psipmmr_off);
124
125 if (promisc)
126 val |= PSIPMMR_SI_MAC_MP(si_id);
127 else
128 val &= ~PSIPMMR_SI_MAC_MP(si_id);
129
130 enetc_port_wr(hw, psipmmr_off, val);
131 }
132 EXPORT_SYMBOL_GPL(enetc_set_si_mc_promisc);
133
enetc_set_si_uc_hash_filter(struct enetc_si * si,int si_id,u64 hash)134 void enetc_set_si_uc_hash_filter(struct enetc_si *si, int si_id, u64 hash)
135 {
136 int psiumhfr0_off, psiumhfr1_off;
137 struct enetc_hw *hw = &si->hw;
138
139 if (is_enetc_rev1(si)) {
140 bool err = si->errata & ENETC_ERR_UCMCSWP;
141
142 psiumhfr0_off = ENETC_PSIUMHFR0(si_id, err);
143 psiumhfr1_off = ENETC_PSIUMHFR1(si_id);
144 } else {
145 psiumhfr0_off = ENETC4_PSIUMHFR0(si_id);
146 psiumhfr1_off = ENETC4_PSIUMHFR1(si_id);
147 }
148
149 enetc_port_wr(hw, psiumhfr0_off, lower_32_bits(hash));
150 enetc_port_wr(hw, psiumhfr1_off, upper_32_bits(hash));
151 }
152 EXPORT_SYMBOL_GPL(enetc_set_si_uc_hash_filter);
153
enetc_set_si_mc_hash_filter(struct enetc_si * si,int si_id,u64 hash)154 void enetc_set_si_mc_hash_filter(struct enetc_si *si, int si_id, u64 hash)
155 {
156 int psimmhfr0_off, psimmhfr1_off;
157 struct enetc_hw *hw = &si->hw;
158
159 if (is_enetc_rev1(si)) {
160 bool err = si->errata & ENETC_ERR_UCMCSWP;
161
162 psimmhfr0_off = ENETC_PSIMMHFR0(si_id, err);
163 psimmhfr1_off = ENETC_PSIMMHFR1(si_id);
164 } else {
165 psimmhfr0_off = ENETC4_PSIMMHFR0(si_id);
166 psimmhfr1_off = ENETC4_PSIMMHFR1(si_id);
167 }
168
169 enetc_port_wr(hw, psimmhfr0_off, lower_32_bits(hash));
170 enetc_port_wr(hw, psimmhfr1_off, upper_32_bits(hash));
171 }
172 EXPORT_SYMBOL_GPL(enetc_set_si_mc_hash_filter);
173
enetc_set_si_vlan_promisc(struct enetc_si * si,int si_id,bool promisc)174 void enetc_set_si_vlan_promisc(struct enetc_si *si, int si_id, bool promisc)
175 {
176 struct enetc_hw *hw = &si->hw;
177 int psipvmr_off;
178 u32 val;
179
180 if (is_enetc_rev1(si))
181 psipvmr_off = ENETC_PSIPVMR;
182 else
183 psipvmr_off = ENETC4_PSIPVMR;
184
185 val = enetc_port_rd(hw, psipvmr_off);
186
187 if (promisc)
188 val |= PSIPVMR_SI_VLAN_P(si_id);
189 else
190 val &= ~PSIPVMR_SI_VLAN_P(si_id);
191
192 enetc_port_wr(hw, psipvmr_off, val);
193 }
194 EXPORT_SYMBOL_GPL(enetc_set_si_vlan_promisc);
195
enetc_pf_netdev_setup(struct enetc_si * si,struct net_device * ndev,const struct net_device_ops * ndev_ops)196 void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
197 const struct net_device_ops *ndev_ops)
198 {
199 struct enetc_ndev_priv *priv = netdev_priv(ndev);
200 struct enetc_pf *pf = enetc_si_priv(si);
201
202 SET_NETDEV_DEV(ndev, &si->pdev->dev);
203 priv->ndev = ndev;
204 priv->si = si;
205 priv->dev = &si->pdev->dev;
206 si->ndev = ndev;
207
208 priv->msg_enable = (NETIF_MSG_WOL << 1) - 1;
209 priv->sysclk_freq = si->drvdata->sysclk_freq;
210 priv->max_frags = si->drvdata->max_frags;
211 ndev->netdev_ops = ndev_ops;
212 enetc_set_ethtool_ops(ndev);
213 ndev->watchdog_timeo = 5 * HZ;
214 ndev->max_mtu = ENETC_MAX_MTU;
215
216 ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
217 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
218 NETIF_F_HW_VLAN_CTAG_FILTER |
219 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
220 NETIF_F_GSO_UDP_L4;
221 ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM |
222 NETIF_F_HW_VLAN_CTAG_TX |
223 NETIF_F_HW_VLAN_CTAG_RX |
224 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
225 NETIF_F_GSO_UDP_L4;
226 ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM |
227 NETIF_F_TSO | NETIF_F_TSO6;
228
229 ndev->priv_flags |= IFF_UNICAST_FLT;
230
231 if (si->drvdata->tx_csum)
232 priv->active_offloads |= ENETC_F_TXCSUM;
233
234 if (si->hw_features & ENETC_SI_F_LSO)
235 priv->active_offloads |= ENETC_F_LSO;
236
237 if (si->num_rss) {
238 ndev->hw_features |= NETIF_F_RXHASH;
239 ndev->features |= NETIF_F_RXHASH;
240 }
241
242 if (!enetc_is_pseudo_mac(si))
243 ndev->hw_features |= NETIF_F_LOOPBACK;
244
245 /* TODO: currently, i.MX95 ENETC driver does not support advanced features */
246 if (!is_enetc_rev1(si))
247 goto end;
248
249 ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
250 NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG |
251 NETDEV_XDP_ACT_NDO_XMIT_SG;
252
253 if (si->hw_features & ENETC_SI_F_PSFP && pf->ops->enable_psfp &&
254 !pf->ops->enable_psfp(priv)) {
255 priv->active_offloads |= ENETC_F_QCI;
256 ndev->features |= NETIF_F_HW_TC;
257 ndev->hw_features |= NETIF_F_HW_TC;
258 }
259
260 end:
261 /* pick up primary MAC address from SI */
262 enetc_load_primary_mac_addr(&si->hw, ndev);
263 }
264 EXPORT_SYMBOL_GPL(enetc_pf_netdev_setup);
265
enetc_mdio_probe(struct enetc_pf * pf,struct device_node * np)266 static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np)
267 {
268 struct device *dev = &pf->si->pdev->dev;
269 struct enetc_mdio_priv *mdio_priv;
270 struct mii_bus *bus;
271 int err;
272
273 bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv));
274 if (!bus)
275 return -ENOMEM;
276
277 bus->name = "Freescale ENETC MDIO Bus";
278 bus->read = enetc_mdio_read_c22;
279 bus->write = enetc_mdio_write_c22;
280 bus->read_c45 = enetc_mdio_read_c45;
281 bus->write_c45 = enetc_mdio_write_c45;
282 bus->parent = dev;
283 mdio_priv = bus->priv;
284 mdio_priv->hw = &pf->si->hw;
285
286 if (is_enetc_rev1(pf->si))
287 mdio_priv->mdio_base = ENETC_EMDIO_BASE;
288 else
289 mdio_priv->mdio_base = ENETC4_EMDIO_BASE;
290
291 snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev));
292
293 err = of_mdiobus_register(bus, np);
294 if (err)
295 return dev_err_probe(dev, err, "cannot register MDIO bus\n");
296
297 pf->mdio = bus;
298
299 return 0;
300 }
301
enetc_mdio_remove(struct enetc_pf * pf)302 static void enetc_mdio_remove(struct enetc_pf *pf)
303 {
304 if (pf->mdio)
305 mdiobus_unregister(pf->mdio);
306 }
307
enetc_imdio_create(struct enetc_pf * pf)308 static int enetc_imdio_create(struct enetc_pf *pf)
309 {
310 struct device *dev = &pf->si->pdev->dev;
311 struct enetc_mdio_priv *mdio_priv;
312 struct phylink_pcs *phylink_pcs;
313 struct mii_bus *bus;
314 int err;
315
316 if (!pf->ops->create_pcs) {
317 dev_err(dev, "Creating PCS is not supported\n");
318
319 return -EOPNOTSUPP;
320 }
321
322 bus = mdiobus_alloc_size(sizeof(*mdio_priv));
323 if (!bus)
324 return -ENOMEM;
325
326 bus->name = "Freescale ENETC internal MDIO Bus";
327 bus->read = enetc_mdio_read_c22;
328 bus->write = enetc_mdio_write_c22;
329 bus->read_c45 = enetc_mdio_read_c45;
330 bus->write_c45 = enetc_mdio_write_c45;
331 bus->parent = dev;
332 bus->phy_mask = ~0;
333 mdio_priv = bus->priv;
334 mdio_priv->hw = &pf->si->hw;
335
336 if (is_enetc_rev1(pf->si))
337 mdio_priv->mdio_base = ENETC_PM_IMDIO_BASE;
338 else
339 mdio_priv->mdio_base = ENETC4_PM_IMDIO_BASE;
340
341 snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev));
342
343 err = mdiobus_register(bus);
344 if (err) {
345 dev_err(dev, "cannot register internal MDIO bus (%d)\n", err);
346 goto free_mdio_bus;
347 }
348
349 phylink_pcs = pf->ops->create_pcs(pf, bus);
350 if (IS_ERR(phylink_pcs)) {
351 err = PTR_ERR(phylink_pcs);
352 dev_err(dev, "cannot create lynx pcs (%d)\n", err);
353 goto unregister_mdiobus;
354 }
355
356 pf->imdio = bus;
357 pf->pcs = phylink_pcs;
358
359 return 0;
360
361 unregister_mdiobus:
362 mdiobus_unregister(bus);
363 free_mdio_bus:
364 mdiobus_free(bus);
365 return err;
366 }
367
enetc_imdio_remove(struct enetc_pf * pf)368 static void enetc_imdio_remove(struct enetc_pf *pf)
369 {
370 if (pf->pcs && pf->ops->destroy_pcs)
371 pf->ops->destroy_pcs(pf->pcs);
372
373 if (pf->imdio) {
374 mdiobus_unregister(pf->imdio);
375 mdiobus_free(pf->imdio);
376 }
377 }
378
enetc_port_has_pcs(struct enetc_pf * pf)379 static bool enetc_port_has_pcs(struct enetc_pf *pf)
380 {
381 return (pf->if_mode == PHY_INTERFACE_MODE_SGMII ||
382 pf->if_mode == PHY_INTERFACE_MODE_1000BASEX ||
383 pf->if_mode == PHY_INTERFACE_MODE_2500BASEX ||
384 pf->if_mode == PHY_INTERFACE_MODE_USXGMII ||
385 pf->if_mode == PHY_INTERFACE_MODE_10GBASER);
386 }
387
enetc_mdiobus_create(struct enetc_pf * pf,struct device_node * node)388 int enetc_mdiobus_create(struct enetc_pf *pf, struct device_node *node)
389 {
390 struct device_node *mdio_np;
391 int err;
392
393 mdio_np = of_get_child_by_name(node, "mdio");
394 if (mdio_np) {
395 err = enetc_mdio_probe(pf, mdio_np);
396
397 of_node_put(mdio_np);
398 if (err)
399 return err;
400 }
401
402 if (enetc_port_has_pcs(pf)) {
403 err = enetc_imdio_create(pf);
404 if (err) {
405 enetc_mdio_remove(pf);
406 return err;
407 }
408 }
409
410 return 0;
411 }
412 EXPORT_SYMBOL_GPL(enetc_mdiobus_create);
413
enetc_mdiobus_destroy(struct enetc_pf * pf)414 void enetc_mdiobus_destroy(struct enetc_pf *pf)
415 {
416 enetc_mdio_remove(pf);
417 enetc_imdio_remove(pf);
418 }
419 EXPORT_SYMBOL_GPL(enetc_mdiobus_destroy);
420
enetc_phylink_create(struct enetc_ndev_priv * priv,struct device_node * node,const struct phylink_mac_ops * ops)421 int enetc_phylink_create(struct enetc_ndev_priv *priv, struct device_node *node,
422 const struct phylink_mac_ops *ops)
423 {
424 struct enetc_pf *pf = enetc_si_priv(priv->si);
425 struct phylink *phylink;
426 unsigned long mac_caps;
427 int err;
428
429 pf->phylink_config.dev = &priv->ndev->dev;
430 pf->phylink_config.type = PHYLINK_NETDEV;
431
432 __set_bit(PHY_INTERFACE_MODE_INTERNAL,
433 pf->phylink_config.supported_interfaces);
434
435 mac_caps = MAC_ASYM_PAUSE | MAC_SYM_PAUSE;
436 if (!enetc_is_pseudo_mac(priv->si)) {
437 mac_caps |= MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD;
438
439 __set_bit(PHY_INTERFACE_MODE_SGMII,
440 pf->phylink_config.supported_interfaces);
441 __set_bit(PHY_INTERFACE_MODE_1000BASEX,
442 pf->phylink_config.supported_interfaces);
443 __set_bit(PHY_INTERFACE_MODE_2500BASEX,
444 pf->phylink_config.supported_interfaces);
445 __set_bit(PHY_INTERFACE_MODE_USXGMII,
446 pf->phylink_config.supported_interfaces);
447
448 if (!is_enetc_rev1(priv->si)) {
449 mac_caps |= MAC_5000FD | MAC_10000FD;
450 __set_bit(PHY_INTERFACE_MODE_10GBASER,
451 pf->phylink_config.supported_interfaces);
452 }
453
454 phy_interface_set_rgmii(pf->phylink_config.supported_interfaces);
455 } else {
456 mac_caps |= MAC_10FD | MAC_100FD | MAC_1000FD | MAC_2500FD |
457 MAC_5000FD | MAC_10000FD | MAC_20000FD |
458 MAC_25000FD;
459 }
460
461 pf->phylink_config.mac_capabilities = mac_caps;
462 phylink = phylink_create(&pf->phylink_config, of_fwnode_handle(node),
463 pf->if_mode, ops);
464 if (IS_ERR(phylink)) {
465 err = PTR_ERR(phylink);
466 return err;
467 }
468
469 priv->phylink = phylink;
470
471 return 0;
472 }
473 EXPORT_SYMBOL_GPL(enetc_phylink_create);
474
enetc_phylink_destroy(struct enetc_ndev_priv * priv)475 void enetc_phylink_destroy(struct enetc_ndev_priv *priv)
476 {
477 phylink_destroy(priv->phylink);
478 }
479 EXPORT_SYMBOL_GPL(enetc_phylink_destroy);
480
enetc_set_default_rss_key(struct enetc_pf * pf)481 void enetc_set_default_rss_key(struct enetc_pf *pf)
482 {
483 u8 hash_key[ENETC_RSSHASH_KEY_SIZE] = {0};
484
485 /* set up hash key */
486 get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE);
487 enetc_set_rss_key(pf->si, hash_key);
488 }
489 EXPORT_SYMBOL_GPL(enetc_set_default_rss_key);
490
enetc_vid_hash_idx(unsigned int vid)491 static int enetc_vid_hash_idx(unsigned int vid)
492 {
493 int res = 0;
494 int i;
495
496 for (i = 0; i < 6; i++)
497 res |= (hweight8(vid & (BIT(i) | BIT(i + 6))) & 0x1) << i;
498
499 return res;
500 }
501
enetc_refresh_vlan_ht_filter(struct enetc_pf * pf)502 static void enetc_refresh_vlan_ht_filter(struct enetc_pf *pf)
503 {
504 int i;
505
506 bitmap_zero(pf->vlan_ht_filter, ENETC_VLAN_HT_SIZE);
507 for_each_set_bit(i, pf->active_vlans, VLAN_N_VID) {
508 int hidx = enetc_vid_hash_idx(i);
509
510 __set_bit(hidx, pf->vlan_ht_filter);
511 }
512 }
513
enetc_set_si_vlan_ht_filter(struct enetc_si * si,int si_id,u64 hash)514 static void enetc_set_si_vlan_ht_filter(struct enetc_si *si,
515 int si_id, u64 hash)
516 {
517 struct enetc_hw *hw = &si->hw;
518 int high_reg_off, low_reg_off;
519
520 if (is_enetc_rev1(si)) {
521 low_reg_off = ENETC_PSIVHFR0(si_id);
522 high_reg_off = ENETC_PSIVHFR1(si_id);
523 } else {
524 low_reg_off = ENETC4_PSIVHFR0(si_id);
525 high_reg_off = ENETC4_PSIVHFR1(si_id);
526 }
527
528 enetc_port_wr(hw, low_reg_off, lower_32_bits(hash));
529 enetc_port_wr(hw, high_reg_off, upper_32_bits(hash));
530 }
531
enetc_vlan_rx_add_vid(struct net_device * ndev,__be16 prot,u16 vid)532 int enetc_vlan_rx_add_vid(struct net_device *ndev, __be16 prot, u16 vid)
533 {
534 struct enetc_ndev_priv *priv = netdev_priv(ndev);
535 struct enetc_pf *pf = enetc_si_priv(priv->si);
536 int idx;
537
538 __set_bit(vid, pf->active_vlans);
539
540 idx = enetc_vid_hash_idx(vid);
541 if (!__test_and_set_bit(idx, pf->vlan_ht_filter))
542 enetc_set_si_vlan_ht_filter(pf->si, 0, *pf->vlan_ht_filter);
543
544 return 0;
545 }
546 EXPORT_SYMBOL_GPL(enetc_vlan_rx_add_vid);
547
enetc_vlan_rx_del_vid(struct net_device * ndev,__be16 prot,u16 vid)548 int enetc_vlan_rx_del_vid(struct net_device *ndev, __be16 prot, u16 vid)
549 {
550 struct enetc_ndev_priv *priv = netdev_priv(ndev);
551 struct enetc_pf *pf = enetc_si_priv(priv->si);
552
553 if (__test_and_clear_bit(vid, pf->active_vlans)) {
554 enetc_refresh_vlan_ht_filter(pf);
555 enetc_set_si_vlan_ht_filter(pf->si, 0, *pf->vlan_ht_filter);
556 }
557
558 return 0;
559 }
560 EXPORT_SYMBOL_GPL(enetc_vlan_rx_del_vid);
561
enetc_init_sriov_resources(struct enetc_pf * pf)562 int enetc_init_sriov_resources(struct enetc_pf *pf)
563 {
564 struct device *dev = &pf->si->pdev->dev;
565
566 pf->total_vfs = pci_sriov_get_totalvfs(pf->si->pdev);
567 if (!pf->total_vfs)
568 return 0;
569
570 pf->rxmsg = devm_kcalloc(dev, pf->total_vfs,
571 sizeof(struct enetc_msg_swbd),
572 GFP_KERNEL);
573 if (!pf->rxmsg)
574 return -ENOMEM;
575
576 pf->vf_state = devm_kcalloc(dev, pf->total_vfs,
577 sizeof(struct enetc_vf_state),
578 GFP_KERNEL);
579 if (!pf->vf_state)
580 return -ENOMEM;
581
582 for (int i = 0; i < pf->total_vfs; i++)
583 mutex_init(&pf->vf_state[i].lock);
584
585 return 0;
586 }
587 EXPORT_SYMBOL_GPL(enetc_init_sriov_resources);
588
589 MODULE_DESCRIPTION("NXP ENETC PF common functionality driver");
590 MODULE_LICENSE("Dual BSD/GPL");
591