1
2
3
4#include <linux/module.h>
5#include <linux/fsl/enetc_mdio.h>
6#include <linux/of_mdio.h>
7#include <linux/of_net.h>
8#include "enetc_pf.h"
9
10#define ENETC_DRV_VER_MAJ 1
11#define ENETC_DRV_VER_MIN 0
12
13#define ENETC_DRV_VER_STR __stringify(ENETC_DRV_VER_MAJ) "." \
14 __stringify(ENETC_DRV_VER_MIN)
15static const char enetc_drv_ver[] = ENETC_DRV_VER_STR;
16#define ENETC_DRV_NAME_STR "ENETC PF driver"
17static const char enetc_drv_name[] = ENETC_DRV_NAME_STR;
18
19static void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr)
20{
21 u32 upper = __raw_readl(hw->port + ENETC_PSIPMAR0(si));
22 u16 lower = __raw_readw(hw->port + ENETC_PSIPMAR1(si));
23
24 *(u32 *)addr = upper;
25 *(u16 *)(addr + 4) = lower;
26}
27
28static void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si,
29 const u8 *addr)
30{
31 u32 upper = *(const u32 *)addr;
32 u16 lower = *(const u16 *)(addr + 4);
33
34 __raw_writel(upper, hw->port + ENETC_PSIPMAR0(si));
35 __raw_writew(lower, hw->port + ENETC_PSIPMAR1(si));
36}
37
38static int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr)
39{
40 struct enetc_ndev_priv *priv = netdev_priv(ndev);
41 struct sockaddr *saddr = addr;
42
43 if (!is_valid_ether_addr(saddr->sa_data))
44 return -EADDRNOTAVAIL;
45
46 memcpy(ndev->dev_addr, saddr->sa_data, ndev->addr_len);
47 enetc_pf_set_primary_mac_addr(&priv->si->hw, 0, saddr->sa_data);
48
49 return 0;
50}
51
52static void enetc_set_vlan_promisc(struct enetc_hw *hw, char si_map)
53{
54 u32 val = enetc_port_rd(hw, ENETC_PSIPVMR);
55
56 val &= ~ENETC_PSIPVMR_SET_VP(ENETC_VLAN_PROMISC_MAP_ALL);
57 enetc_port_wr(hw, ENETC_PSIPVMR, ENETC_PSIPVMR_SET_VP(si_map) | val);
58}
59
60static bool enetc_si_vlan_promisc_is_on(struct enetc_pf *pf, int si_idx)
61{
62 return pf->vlan_promisc_simap & BIT(si_idx);
63}
64
65static bool enetc_vlan_filter_is_on(struct enetc_pf *pf)
66{
67 int i;
68
69 for_each_set_bit(i, pf->active_vlans, VLAN_N_VID)
70 return true;
71
72 return false;
73}
74
75static void enetc_enable_si_vlan_promisc(struct enetc_pf *pf, int si_idx)
76{
77 pf->vlan_promisc_simap |= BIT(si_idx);
78 enetc_set_vlan_promisc(&pf->si->hw, pf->vlan_promisc_simap);
79}
80
81static void enetc_disable_si_vlan_promisc(struct enetc_pf *pf, int si_idx)
82{
83 pf->vlan_promisc_simap &= ~BIT(si_idx);
84 enetc_set_vlan_promisc(&pf->si->hw, pf->vlan_promisc_simap);
85}
86
87static void enetc_set_isol_vlan(struct enetc_hw *hw, int si, u16 vlan, u8 qos)
88{
89 u32 val = 0;
90
91 if (vlan)
92 val = ENETC_PSIVLAN_EN | ENETC_PSIVLAN_SET_QOS(qos) | vlan;
93
94 enetc_port_wr(hw, ENETC_PSIVLANR(si), val);
95}
96
97static int enetc_mac_addr_hash_idx(const u8 *addr)
98{
99 u64 fold = __swab64(ether_addr_to_u64(addr)) >> 16;
100 u64 mask = 0;
101 int res = 0;
102 int i;
103
104 for (i = 0; i < 8; i++)
105 mask |= BIT_ULL(i * 6);
106
107 for (i = 0; i < 6; i++)
108 res |= (hweight64(fold & (mask << i)) & 0x1) << i;
109
110 return res;
111}
112
113static void enetc_reset_mac_addr_filter(struct enetc_mac_filter *filter)
114{
115 filter->mac_addr_cnt = 0;
116
117 bitmap_zero(filter->mac_hash_table,
118 ENETC_MADDR_HASH_TBL_SZ);
119}
120
121static void enetc_add_mac_addr_em_filter(struct enetc_mac_filter *filter,
122 const unsigned char *addr)
123{
124
125 ether_addr_copy(filter->mac_addr, addr);
126 filter->mac_addr_cnt++;
127}
128
129static void enetc_add_mac_addr_ht_filter(struct enetc_mac_filter *filter,
130 const unsigned char *addr)
131{
132 int idx = enetc_mac_addr_hash_idx(addr);
133
134
135 __set_bit(idx, filter->mac_hash_table);
136 filter->mac_addr_cnt++;
137}
138
139static void enetc_clear_mac_ht_flt(struct enetc_si *si, int si_idx, int type)
140{
141 bool err = si->errata & ENETC_ERR_UCMCSWP;
142
143 if (type == UC) {
144 enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), 0);
145 enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), 0);
146 } else {
147 enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), 0);
148 enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), 0);
149 }
150}
151
152static void enetc_set_mac_ht_flt(struct enetc_si *si, int si_idx, int type,
153 u32 *hash)
154{
155 bool err = si->errata & ENETC_ERR_UCMCSWP;
156
157 if (type == UC) {
158 enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), *hash);
159 enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), *(hash + 1));
160 } else {
161 enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), *hash);
162 enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), *(hash + 1));
163 }
164}
165
166static void enetc_sync_mac_filters(struct enetc_pf *pf)
167{
168 struct enetc_mac_filter *f = pf->mac_filter;
169 struct enetc_si *si = pf->si;
170 int i, pos;
171
172 pos = EMETC_MAC_ADDR_FILT_RES;
173
174 for (i = 0; i < MADDR_TYPE; i++, f++) {
175 bool em = (f->mac_addr_cnt == 1) && (i == UC);
176 bool clear = !f->mac_addr_cnt;
177
178 if (clear) {
179 if (i == UC)
180 enetc_clear_mac_flt_entry(si, pos);
181
182 enetc_clear_mac_ht_flt(si, 0, i);
183 continue;
184 }
185
186
187 if (em) {
188 int err;
189
190 enetc_clear_mac_ht_flt(si, 0, UC);
191
192 err = enetc_set_mac_flt_entry(si, pos, f->mac_addr,
193 BIT(0));
194 if (!err)
195 continue;
196
197
198 dev_warn(&si->pdev->dev, "fallback to HT filt (%d)\n",
199 err);
200 }
201
202
203 if (i == UC)
204 enetc_clear_mac_flt_entry(si, pos);
205
206 enetc_set_mac_ht_flt(si, 0, i, (u32 *)f->mac_hash_table);
207 }
208}
209
210static void enetc_pf_set_rx_mode(struct net_device *ndev)
211{
212 struct enetc_ndev_priv *priv = netdev_priv(ndev);
213 struct enetc_pf *pf = enetc_si_priv(priv->si);
214 struct enetc_hw *hw = &priv->si->hw;
215 bool uprom = false, mprom = false;
216 struct enetc_mac_filter *filter;
217 struct netdev_hw_addr *ha;
218 u32 psipmr = 0;
219 bool em;
220
221 if (ndev->flags & IFF_PROMISC) {
222
223 psipmr = ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0);
224 uprom = true;
225 mprom = true;
226
227 if (!enetc_si_vlan_promisc_is_on(pf, 0))
228 enetc_enable_si_vlan_promisc(pf, 0);
229
230 } else if (ndev->flags & IFF_ALLMULTI) {
231
232 psipmr = ENETC_PSIPMR_SET_MP(0);
233 mprom = true;
234 }
235
236
237 if (!uprom) {
238
239 filter = &pf->mac_filter[UC];
240 enetc_reset_mac_addr_filter(filter);
241
242 em = (netdev_uc_count(ndev) == 1);
243 netdev_for_each_uc_addr(ha, ndev) {
244 if (em) {
245 enetc_add_mac_addr_em_filter(filter, ha->addr);
246 break;
247 }
248
249 enetc_add_mac_addr_ht_filter(filter, ha->addr);
250 }
251 }
252
253 if (!mprom) {
254
255 filter = &pf->mac_filter[MC];
256 enetc_reset_mac_addr_filter(filter);
257
258 netdev_for_each_mc_addr(ha, ndev) {
259 if (!is_multicast_ether_addr(ha->addr))
260 continue;
261
262 enetc_add_mac_addr_ht_filter(filter, ha->addr);
263 }
264 }
265
266 if (!uprom || !mprom)
267
268 enetc_sync_mac_filters(pf);
269
270 psipmr |= enetc_port_rd(hw, ENETC_PSIPMR) &
271 ~(ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0));
272 enetc_port_wr(hw, ENETC_PSIPMR, psipmr);
273}
274
275static void enetc_set_vlan_ht_filter(struct enetc_hw *hw, int si_idx,
276 u32 *hash)
277{
278 enetc_port_wr(hw, ENETC_PSIVHFR0(si_idx), *hash);
279 enetc_port_wr(hw, ENETC_PSIVHFR1(si_idx), *(hash + 1));
280}
281
282static int enetc_vid_hash_idx(unsigned int vid)
283{
284 int res = 0;
285 int i;
286
287 for (i = 0; i < 6; i++)
288 res |= (hweight8(vid & (BIT(i) | BIT(i + 6))) & 0x1) << i;
289
290 return res;
291}
292
293static void enetc_sync_vlan_ht_filter(struct enetc_pf *pf, bool rehash)
294{
295 int i;
296
297 if (rehash) {
298 bitmap_zero(pf->vlan_ht_filter, ENETC_VLAN_HT_SIZE);
299
300 for_each_set_bit(i, pf->active_vlans, VLAN_N_VID) {
301 int hidx = enetc_vid_hash_idx(i);
302
303 __set_bit(hidx, pf->vlan_ht_filter);
304 }
305 }
306
307 enetc_set_vlan_ht_filter(&pf->si->hw, 0, (u32 *)pf->vlan_ht_filter);
308}
309
310static int enetc_vlan_rx_add_vid(struct net_device *ndev, __be16 prot, u16 vid)
311{
312 struct enetc_ndev_priv *priv = netdev_priv(ndev);
313 struct enetc_pf *pf = enetc_si_priv(priv->si);
314 int idx;
315
316 if (enetc_si_vlan_promisc_is_on(pf, 0))
317 enetc_disable_si_vlan_promisc(pf, 0);
318
319 __set_bit(vid, pf->active_vlans);
320
321 idx = enetc_vid_hash_idx(vid);
322 if (!__test_and_set_bit(idx, pf->vlan_ht_filter))
323 enetc_sync_vlan_ht_filter(pf, false);
324
325 return 0;
326}
327
328static int enetc_vlan_rx_del_vid(struct net_device *ndev, __be16 prot, u16 vid)
329{
330 struct enetc_ndev_priv *priv = netdev_priv(ndev);
331 struct enetc_pf *pf = enetc_si_priv(priv->si);
332
333 __clear_bit(vid, pf->active_vlans);
334 enetc_sync_vlan_ht_filter(pf, true);
335
336 if (!enetc_vlan_filter_is_on(pf))
337 enetc_enable_si_vlan_promisc(pf, 0);
338
339 return 0;
340}
341
342static void enetc_set_loopback(struct net_device *ndev, bool en)
343{
344 struct enetc_ndev_priv *priv = netdev_priv(ndev);
345 struct enetc_hw *hw = &priv->si->hw;
346 u32 reg;
347
348 reg = enetc_port_rd(hw, ENETC_PM0_IF_MODE);
349 if (reg & ENETC_PMO_IFM_RG) {
350
351 reg = (reg & ~ENETC_PM0_IFM_RLP) |
352 (en ? ENETC_PM0_IFM_RLP : 0);
353 enetc_port_wr(hw, ENETC_PM0_IF_MODE, reg);
354 } else {
355
356 reg = enetc_port_rd(hw, ENETC_PM0_CMD_CFG);
357 reg = (reg & ~ENETC_PM0_CMD_XGLP) |
358 (en ? ENETC_PM0_CMD_XGLP : 0);
359 reg = (reg & ~ENETC_PM0_CMD_PHY_TX_EN) |
360 (en ? ENETC_PM0_CMD_PHY_TX_EN : 0);
361 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, reg);
362 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, reg);
363 }
364}
365
366static int enetc_pf_set_vf_mac(struct net_device *ndev, int vf, u8 *mac)
367{
368 struct enetc_ndev_priv *priv = netdev_priv(ndev);
369 struct enetc_pf *pf = enetc_si_priv(priv->si);
370 struct enetc_vf_state *vf_state;
371
372 if (vf >= pf->total_vfs)
373 return -EINVAL;
374
375 if (!is_valid_ether_addr(mac))
376 return -EADDRNOTAVAIL;
377
378 vf_state = &pf->vf_state[vf];
379 vf_state->flags |= ENETC_VF_FLAG_PF_SET_MAC;
380 enetc_pf_set_primary_mac_addr(&priv->si->hw, vf + 1, mac);
381 return 0;
382}
383
384static int enetc_pf_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan,
385 u8 qos, __be16 proto)
386{
387 struct enetc_ndev_priv *priv = netdev_priv(ndev);
388 struct enetc_pf *pf = enetc_si_priv(priv->si);
389
390 if (priv->si->errata & ENETC_ERR_VLAN_ISOL)
391 return -EOPNOTSUPP;
392
393 if (vf >= pf->total_vfs)
394 return -EINVAL;
395
396 if (proto != htons(ETH_P_8021Q))
397
398 return -EPROTONOSUPPORT;
399
400 enetc_set_isol_vlan(&priv->si->hw, vf + 1, vlan, qos);
401 return 0;
402}
403
404static int enetc_pf_set_vf_spoofchk(struct net_device *ndev, int vf, bool en)
405{
406 struct enetc_ndev_priv *priv = netdev_priv(ndev);
407 struct enetc_pf *pf = enetc_si_priv(priv->si);
408 u32 cfgr;
409
410 if (vf >= pf->total_vfs)
411 return -EINVAL;
412
413 cfgr = enetc_port_rd(&priv->si->hw, ENETC_PSICFGR0(vf + 1));
414 cfgr = (cfgr & ~ENETC_PSICFGR0_ASE) | (en ? ENETC_PSICFGR0_ASE : 0);
415 enetc_port_wr(&priv->si->hw, ENETC_PSICFGR0(vf + 1), cfgr);
416
417 return 0;
418}
419
420static void enetc_port_setup_primary_mac_address(struct enetc_si *si)
421{
422 unsigned char mac_addr[MAX_ADDR_LEN];
423 struct enetc_pf *pf = enetc_si_priv(si);
424 struct enetc_hw *hw = &si->hw;
425 int i;
426
427
428 for (i = 0; i < pf->total_vfs + 1; i++) {
429 enetc_pf_get_primary_mac_addr(hw, i, mac_addr);
430 if (!is_zero_ether_addr(mac_addr))
431 continue;
432 eth_random_addr(mac_addr);
433 dev_info(&si->pdev->dev, "no MAC address specified for SI%d, using %pM\n",
434 i, mac_addr);
435 enetc_pf_set_primary_mac_addr(hw, i, mac_addr);
436 }
437}
438
439static void enetc_port_assign_rfs_entries(struct enetc_si *si)
440{
441 struct enetc_pf *pf = enetc_si_priv(si);
442 struct enetc_hw *hw = &si->hw;
443 int num_entries, vf_entries, i;
444 u32 val;
445
446
447 val = enetc_port_rd(hw, ENETC_PRFSCAPR);
448 num_entries = ENETC_PRFSCAPR_GET_NUM_RFS(val);
449 vf_entries = num_entries / (pf->total_vfs + 1);
450
451 for (i = 0; i < pf->total_vfs; i++)
452 enetc_port_wr(hw, ENETC_PSIRFSCFGR(i + 1), vf_entries);
453 enetc_port_wr(hw, ENETC_PSIRFSCFGR(0),
454 num_entries - vf_entries * pf->total_vfs);
455
456
457 enetc_port_wr(hw, ENETC_PRFSMR, ENETC_PRFSMR_RFSE);
458}
459
460static void enetc_port_si_configure(struct enetc_si *si)
461{
462 struct enetc_pf *pf = enetc_si_priv(si);
463 struct enetc_hw *hw = &si->hw;
464 int num_rings, i;
465 u32 val;
466
467 val = enetc_port_rd(hw, ENETC_PCAPR0);
468 num_rings = min(ENETC_PCAPR0_RXBDR(val), ENETC_PCAPR0_TXBDR(val));
469
470 val = ENETC_PSICFGR0_SET_TXBDR(ENETC_PF_NUM_RINGS);
471 val |= ENETC_PSICFGR0_SET_RXBDR(ENETC_PF_NUM_RINGS);
472
473 if (unlikely(num_rings < ENETC_PF_NUM_RINGS)) {
474 val = ENETC_PSICFGR0_SET_TXBDR(num_rings);
475 val |= ENETC_PSICFGR0_SET_RXBDR(num_rings);
476
477 dev_warn(&si->pdev->dev, "Found %d rings, expected %d!\n",
478 num_rings, ENETC_PF_NUM_RINGS);
479
480 num_rings = 0;
481 }
482
483
484 val |= ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S);
485
486 enetc_port_wr(hw, ENETC_PSICFGR0(0), val);
487
488 if (num_rings)
489 num_rings -= ENETC_PF_NUM_RINGS;
490
491
492 val = ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S);
493 val |= ENETC_PSICFGR0_VTE | ENETC_PSICFGR0_SIVIE;
494
495 if (num_rings) {
496 num_rings /= pf->total_vfs;
497 val |= ENETC_PSICFGR0_SET_TXBDR(num_rings);
498 val |= ENETC_PSICFGR0_SET_RXBDR(num_rings);
499 }
500
501 for (i = 0; i < pf->total_vfs; i++)
502 enetc_port_wr(hw, ENETC_PSICFGR0(i + 1), val);
503
504
505 val = ENETC_PVCLCTR_OVTPIDL(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S);
506 enetc_port_wr(hw, ENETC_PVCLCTR, val);
507
508 enetc_port_wr(hw, ENETC_PSIVLANFMR, ENETC_PSIVLANFMR_VS);
509}
510
511static void enetc_configure_port_mac(struct enetc_hw *hw)
512{
513 enetc_port_wr(hw, ENETC_PM0_MAXFRM,
514 ENETC_SET_MAXFRM(ENETC_RX_MAXFRM_SIZE));
515
516 enetc_port_wr(hw, ENETC_PTCMSDUR(0), ENETC_MAC_MAXFRM_SIZE);
517 enetc_port_wr(hw, ENETC_PTXMBAR, 2 * ENETC_MAC_MAXFRM_SIZE);
518
519 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN |
520 ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC |
521 ENETC_PM0_TX_EN | ENETC_PM0_RX_EN);
522
523 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN |
524 ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC |
525 ENETC_PM0_TX_EN | ENETC_PM0_RX_EN);
526
527 if (enetc_port_rd(hw, ENETC_PM0_IF_MODE) & ENETC_PMO_IFM_RG)
528 enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_RGAUTO);
529 if (enetc_global_rd(hw, ENETC_G_EPFBLPR(1)) == ENETC_G_EPFBLPR1_XGMII)
530 enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_XGMII);
531}
532
533static void enetc_configure_port_pmac(struct enetc_hw *hw)
534{
535 u32 temp;
536
537
538 temp = enetc_port_rd(hw, ENETC_PFPMR);
539 enetc_port_wr(hw, ENETC_PFPMR,
540 temp | ENETC_PFPMR_PMACE | ENETC_PFPMR_MWLM);
541
542 temp = enetc_port_rd(hw, ENETC_MMCSR);
543 enetc_port_wr(hw, ENETC_MMCSR, temp | ENETC_MMCSR_ME);
544}
545
546static void enetc_configure_port(struct enetc_pf *pf)
547{
548 u8 hash_key[ENETC_RSSHASH_KEY_SIZE];
549 struct enetc_hw *hw = &pf->si->hw;
550
551 enetc_configure_port_pmac(hw);
552
553 enetc_configure_port_mac(hw);
554
555 enetc_port_si_configure(pf->si);
556
557
558 get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE);
559 enetc_set_rss_key(hw, hash_key);
560
561
562 enetc_port_assign_rfs_entries(pf->si);
563
564
565 enetc_port_setup_primary_mac_address(pf->si);
566
567
568 pf->vlan_promisc_simap = ENETC_VLAN_PROMISC_MAP_ALL;
569 enetc_set_vlan_promisc(hw, pf->vlan_promisc_simap);
570
571 enetc_port_wr(hw, ENETC_PSIPMR, 0);
572
573
574 enetc_port_wr(hw, ENETC_PMR, ENETC_PMR_EN);
575}
576
577
578static u16 enetc_msg_pf_set_vf_primary_mac_addr(struct enetc_pf *pf,
579 int vf_id)
580{
581 struct enetc_vf_state *vf_state = &pf->vf_state[vf_id];
582 struct enetc_msg_swbd *msg = &pf->rxmsg[vf_id];
583 struct enetc_msg_cmd_set_primary_mac *cmd;
584 struct device *dev = &pf->si->pdev->dev;
585 u16 cmd_id;
586 char *addr;
587
588 cmd = (struct enetc_msg_cmd_set_primary_mac *)msg->vaddr;
589 cmd_id = cmd->header.id;
590 if (cmd_id != ENETC_MSG_CMD_MNG_ADD)
591 return ENETC_MSG_CMD_STATUS_FAIL;
592
593 addr = cmd->mac.sa_data;
594 if (vf_state->flags & ENETC_VF_FLAG_PF_SET_MAC)
595 dev_warn(dev, "Attempt to override PF set mac addr for VF%d\n",
596 vf_id);
597 else
598 enetc_pf_set_primary_mac_addr(&pf->si->hw, vf_id + 1, addr);
599
600 return ENETC_MSG_CMD_STATUS_OK;
601}
602
603void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int vf_id, u16 *status)
604{
605 struct enetc_msg_swbd *msg = &pf->rxmsg[vf_id];
606 struct device *dev = &pf->si->pdev->dev;
607 struct enetc_msg_cmd_header *cmd_hdr;
608 u16 cmd_type;
609
610 *status = ENETC_MSG_CMD_STATUS_OK;
611 cmd_hdr = (struct enetc_msg_cmd_header *)msg->vaddr;
612 cmd_type = cmd_hdr->type;
613
614 switch (cmd_type) {
615 case ENETC_MSG_CMD_MNG_MAC:
616 *status = enetc_msg_pf_set_vf_primary_mac_addr(pf, vf_id);
617 break;
618 default:
619 dev_err(dev, "command not supported (cmd_type: 0x%x)\n",
620 cmd_type);
621 }
622}
623
624#ifdef CONFIG_PCI_IOV
625static int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs)
626{
627 struct enetc_si *si = pci_get_drvdata(pdev);
628 struct enetc_pf *pf = enetc_si_priv(si);
629 int err;
630
631 if (!num_vfs) {
632 enetc_msg_psi_free(pf);
633 kfree(pf->vf_state);
634 pf->num_vfs = 0;
635 pci_disable_sriov(pdev);
636 } else {
637 pf->num_vfs = num_vfs;
638
639 pf->vf_state = kcalloc(num_vfs, sizeof(struct enetc_vf_state),
640 GFP_KERNEL);
641 if (!pf->vf_state) {
642 pf->num_vfs = 0;
643 return -ENOMEM;
644 }
645
646 err = enetc_msg_psi_init(pf);
647 if (err) {
648 dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err);
649 goto err_msg_psi;
650 }
651
652 err = pci_enable_sriov(pdev, num_vfs);
653 if (err) {
654 dev_err(&pdev->dev, "pci_enable_sriov err %d\n", err);
655 goto err_en_sriov;
656 }
657 }
658
659 return num_vfs;
660
661err_en_sriov:
662 enetc_msg_psi_free(pf);
663err_msg_psi:
664 kfree(pf->vf_state);
665 pf->num_vfs = 0;
666
667 return err;
668}
669#else
670#define enetc_sriov_configure(pdev, num_vfs) (void)0
671#endif
672
673static int enetc_pf_set_features(struct net_device *ndev,
674 netdev_features_t features)
675{
676 netdev_features_t changed = ndev->features ^ features;
677 struct enetc_ndev_priv *priv = netdev_priv(ndev);
678
679 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
680 enetc_enable_rxvlan(&priv->si->hw, 0,
681 !!(features & NETIF_F_HW_VLAN_CTAG_RX));
682
683 if (changed & NETIF_F_HW_VLAN_CTAG_TX)
684 enetc_enable_txvlan(&priv->si->hw, 0,
685 !!(features & NETIF_F_HW_VLAN_CTAG_TX));
686
687 if (changed & NETIF_F_LOOPBACK)
688 enetc_set_loopback(ndev, !!(features & NETIF_F_LOOPBACK));
689
690 return enetc_set_features(ndev, features);
691}
692
693static const struct net_device_ops enetc_ndev_ops = {
694 .ndo_open = enetc_open,
695 .ndo_stop = enetc_close,
696 .ndo_start_xmit = enetc_xmit,
697 .ndo_get_stats = enetc_get_stats,
698 .ndo_set_mac_address = enetc_pf_set_mac_addr,
699 .ndo_set_rx_mode = enetc_pf_set_rx_mode,
700 .ndo_vlan_rx_add_vid = enetc_vlan_rx_add_vid,
701 .ndo_vlan_rx_kill_vid = enetc_vlan_rx_del_vid,
702 .ndo_set_vf_mac = enetc_pf_set_vf_mac,
703 .ndo_set_vf_vlan = enetc_pf_set_vf_vlan,
704 .ndo_set_vf_spoofchk = enetc_pf_set_vf_spoofchk,
705 .ndo_set_features = enetc_pf_set_features,
706 .ndo_do_ioctl = enetc_ioctl,
707 .ndo_setup_tc = enetc_setup_tc,
708};
709
710static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
711 const struct net_device_ops *ndev_ops)
712{
713 struct enetc_ndev_priv *priv = netdev_priv(ndev);
714
715 SET_NETDEV_DEV(ndev, &si->pdev->dev);
716 priv->ndev = ndev;
717 priv->si = si;
718 priv->dev = &si->pdev->dev;
719 si->ndev = ndev;
720
721 priv->msg_enable = (NETIF_MSG_WOL << 1) - 1;
722 ndev->netdev_ops = ndev_ops;
723 enetc_set_ethtool_ops(ndev);
724 ndev->watchdog_timeo = 5 * HZ;
725 ndev->max_mtu = ENETC_MAX_MTU;
726
727 ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | NETIF_F_HW_CSUM |
728 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
729 NETIF_F_LOOPBACK;
730 ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG |
731 NETIF_F_RXCSUM | NETIF_F_HW_CSUM |
732 NETIF_F_HW_VLAN_CTAG_TX |
733 NETIF_F_HW_VLAN_CTAG_RX |
734 NETIF_F_HW_VLAN_CTAG_FILTER;
735
736 if (si->num_rss)
737 ndev->hw_features |= NETIF_F_RXHASH;
738
739 if (si->errata & ENETC_ERR_TXCSUM) {
740 ndev->hw_features &= ~NETIF_F_HW_CSUM;
741 ndev->features &= ~NETIF_F_HW_CSUM;
742 }
743
744 ndev->priv_flags |= IFF_UNICAST_FLT;
745
746 if (si->hw_features & ENETC_SI_F_QBV)
747 priv->active_offloads |= ENETC_F_QBV;
748
749
750 enetc_get_primary_mac_addr(&si->hw, ndev->dev_addr);
751}
752
753static int enetc_mdio_probe(struct enetc_pf *pf)
754{
755 struct device *dev = &pf->si->pdev->dev;
756 struct enetc_mdio_priv *mdio_priv;
757 struct device_node *np;
758 struct mii_bus *bus;
759 int err;
760
761 bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv));
762 if (!bus)
763 return -ENOMEM;
764
765 bus->name = "Freescale ENETC MDIO Bus";
766 bus->read = enetc_mdio_read;
767 bus->write = enetc_mdio_write;
768 bus->parent = dev;
769 mdio_priv = bus->priv;
770 mdio_priv->hw = &pf->si->hw;
771 mdio_priv->mdio_base = ENETC_EMDIO_BASE;
772 snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev));
773
774 np = of_get_child_by_name(dev->of_node, "mdio");
775 if (!np) {
776 dev_err(dev, "MDIO node missing\n");
777 return -EINVAL;
778 }
779
780 err = of_mdiobus_register(bus, np);
781 if (err) {
782 of_node_put(np);
783 dev_err(dev, "cannot register MDIO bus\n");
784 return err;
785 }
786
787 of_node_put(np);
788 pf->mdio = bus;
789
790 return 0;
791}
792
793static void enetc_mdio_remove(struct enetc_pf *pf)
794{
795 if (pf->mdio)
796 mdiobus_unregister(pf->mdio);
797}
798
799static int enetc_of_get_phy(struct enetc_ndev_priv *priv)
800{
801 struct enetc_pf *pf = enetc_si_priv(priv->si);
802 struct device_node *np = priv->dev->of_node;
803 struct device_node *mdio_np;
804 int err;
805
806 if (!np) {
807 dev_err(priv->dev, "missing ENETC port node\n");
808 return -ENODEV;
809 }
810
811 priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
812 if (!priv->phy_node) {
813 if (!of_phy_is_fixed_link(np)) {
814 dev_err(priv->dev, "PHY not specified\n");
815 return -ENODEV;
816 }
817
818 err = of_phy_register_fixed_link(np);
819 if (err < 0) {
820 dev_err(priv->dev, "fixed link registration failed\n");
821 return err;
822 }
823
824 priv->phy_node = of_node_get(np);
825 }
826
827 mdio_np = of_get_child_by_name(np, "mdio");
828 if (mdio_np) {
829 of_node_put(mdio_np);
830 err = enetc_mdio_probe(pf);
831 if (err) {
832 of_node_put(priv->phy_node);
833 return err;
834 }
835 }
836
837 err = of_get_phy_mode(np, &priv->if_mode);
838 if (err) {
839 dev_err(priv->dev, "missing phy type\n");
840 of_node_put(priv->phy_node);
841 if (of_phy_is_fixed_link(np))
842 of_phy_deregister_fixed_link(np);
843 else
844 enetc_mdio_remove(pf);
845
846 return -EINVAL;
847 }
848
849 return 0;
850}
851
852static void enetc_of_put_phy(struct enetc_ndev_priv *priv)
853{
854 struct device_node *np = priv->dev->of_node;
855
856 if (np && of_phy_is_fixed_link(np))
857 of_phy_deregister_fixed_link(np);
858 if (priv->phy_node)
859 of_node_put(priv->phy_node);
860}
861
862static int enetc_pf_probe(struct pci_dev *pdev,
863 const struct pci_device_id *ent)
864{
865 struct enetc_ndev_priv *priv;
866 struct net_device *ndev;
867 struct enetc_si *si;
868 struct enetc_pf *pf;
869 int err;
870
871 if (pdev->dev.of_node && !of_device_is_available(pdev->dev.of_node)) {
872 dev_info(&pdev->dev, "device is disabled, skipping\n");
873 return -ENODEV;
874 }
875
876 err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf));
877 if (err) {
878 dev_err(&pdev->dev, "PCI probing failed\n");
879 return err;
880 }
881
882 si = pci_get_drvdata(pdev);
883 if (!si->hw.port || !si->hw.global) {
884 err = -ENODEV;
885 dev_err(&pdev->dev, "could not map PF space, probing a VF?\n");
886 goto err_map_pf_space;
887 }
888
889 pf = enetc_si_priv(si);
890 pf->si = si;
891 pf->total_vfs = pci_sriov_get_totalvfs(pdev);
892
893 enetc_configure_port(pf);
894
895 enetc_get_si_caps(si);
896
897 ndev = alloc_etherdev_mq(sizeof(*priv), ENETC_MAX_NUM_TXQS);
898 if (!ndev) {
899 err = -ENOMEM;
900 dev_err(&pdev->dev, "netdev creation failed\n");
901 goto err_alloc_netdev;
902 }
903
904 enetc_pf_netdev_setup(si, ndev, &enetc_ndev_ops);
905
906 priv = netdev_priv(ndev);
907
908 enetc_init_si_rings_params(priv);
909
910 err = enetc_alloc_si_resources(priv);
911 if (err) {
912 dev_err(&pdev->dev, "SI resource alloc failed\n");
913 goto err_alloc_si_res;
914 }
915
916 err = enetc_alloc_msix(priv);
917 if (err) {
918 dev_err(&pdev->dev, "MSIX alloc failed\n");
919 goto err_alloc_msix;
920 }
921
922 err = enetc_of_get_phy(priv);
923 if (err)
924 dev_warn(&pdev->dev, "Fallback to PHY-less operation\n");
925
926 err = register_netdev(ndev);
927 if (err)
928 goto err_reg_netdev;
929
930 netif_carrier_off(ndev);
931
932 netif_info(priv, probe, ndev, "%s v%s\n",
933 enetc_drv_name, enetc_drv_ver);
934
935 return 0;
936
937err_reg_netdev:
938 enetc_of_put_phy(priv);
939 enetc_free_msix(priv);
940err_alloc_msix:
941 enetc_free_si_resources(priv);
942err_alloc_si_res:
943 si->ndev = NULL;
944 free_netdev(ndev);
945err_alloc_netdev:
946err_map_pf_space:
947 enetc_pci_remove(pdev);
948
949 return err;
950}
951
952static void enetc_pf_remove(struct pci_dev *pdev)
953{
954 struct enetc_si *si = pci_get_drvdata(pdev);
955 struct enetc_pf *pf = enetc_si_priv(si);
956 struct enetc_ndev_priv *priv;
957
958 if (pf->num_vfs)
959 enetc_sriov_configure(pdev, 0);
960
961 priv = netdev_priv(si->ndev);
962 netif_info(priv, drv, si->ndev, "%s v%s remove\n",
963 enetc_drv_name, enetc_drv_ver);
964
965 unregister_netdev(si->ndev);
966
967 enetc_mdio_remove(pf);
968 enetc_of_put_phy(priv);
969
970 enetc_free_msix(priv);
971
972 enetc_free_si_resources(priv);
973
974 free_netdev(si->ndev);
975
976 enetc_pci_remove(pdev);
977}
978
979static const struct pci_device_id enetc_pf_id_table[] = {
980 { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PF) },
981 { 0, }
982};
983MODULE_DEVICE_TABLE(pci, enetc_pf_id_table);
984
985static struct pci_driver enetc_pf_driver = {
986 .name = KBUILD_MODNAME,
987 .id_table = enetc_pf_id_table,
988 .probe = enetc_pf_probe,
989 .remove = enetc_pf_remove,
990#ifdef CONFIG_PCI_IOV
991 .sriov_configure = enetc_sriov_configure,
992#endif
993};
994module_pci_driver(enetc_pf_driver);
995
996MODULE_DESCRIPTION(ENETC_DRV_NAME_STR);
997MODULE_LICENSE("Dual BSD/GPL");
998MODULE_VERSION(ENETC_DRV_VER_STR);
999
