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