1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) 2 /* Copyright 2017-2019 NXP */ 3 4 #include <asm/unaligned.h> 5 #include <linux/mdio.h> 6 #include <linux/module.h> 7 #include <linux/fsl/enetc_mdio.h> 8 #include <linux/of_platform.h> 9 #include <linux/of_mdio.h> 10 #include <linux/of_net.h> 11 #include <linux/pcs-lynx.h> 12 #include "enetc_ierb.h" 13 #include "enetc_pf.h" 14 15 #define ENETC_DRV_NAME_STR "ENETC PF driver" 16 17 static void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr) 18 { 19 u32 upper = __raw_readl(hw->port + ENETC_PSIPMAR0(si)); 20 u16 lower = __raw_readw(hw->port + ENETC_PSIPMAR1(si)); 21 22 put_unaligned_le32(upper, addr); 23 put_unaligned_le16(lower, addr + 4); 24 } 25 26 static void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, 27 const u8 *addr) 28 { 29 u32 upper = get_unaligned_le32(addr); 30 u16 lower = get_unaligned_le16(addr + 4); 31 32 __raw_writel(upper, hw->port + ENETC_PSIPMAR0(si)); 33 __raw_writew(lower, hw->port + ENETC_PSIPMAR1(si)); 34 } 35 36 static int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr) 37 { 38 struct enetc_ndev_priv *priv = netdev_priv(ndev); 39 struct sockaddr *saddr = addr; 40 41 if (!is_valid_ether_addr(saddr->sa_data)) 42 return -EADDRNOTAVAIL; 43 44 eth_hw_addr_set(ndev, saddr->sa_data); 45 enetc_pf_set_primary_mac_addr(&priv->si->hw, 0, saddr->sa_data); 46 47 return 0; 48 } 49 50 static void enetc_set_vlan_promisc(struct enetc_hw *hw, char si_map) 51 { 52 u32 val = enetc_port_rd(hw, ENETC_PSIPVMR); 53 54 val &= ~ENETC_PSIPVMR_SET_VP(ENETC_VLAN_PROMISC_MAP_ALL); 55 enetc_port_wr(hw, ENETC_PSIPVMR, ENETC_PSIPVMR_SET_VP(si_map) | val); 56 } 57 58 static void enetc_enable_si_vlan_promisc(struct enetc_pf *pf, int si_idx) 59 { 60 pf->vlan_promisc_simap |= BIT(si_idx); 61 enetc_set_vlan_promisc(&pf->si->hw, pf->vlan_promisc_simap); 62 } 63 64 static void enetc_disable_si_vlan_promisc(struct enetc_pf *pf, int si_idx) 65 { 66 pf->vlan_promisc_simap &= ~BIT(si_idx); 67 enetc_set_vlan_promisc(&pf->si->hw, pf->vlan_promisc_simap); 68 } 69 70 static void enetc_set_isol_vlan(struct enetc_hw *hw, int si, u16 vlan, u8 qos) 71 { 72 u32 val = 0; 73 74 if (vlan) 75 val = ENETC_PSIVLAN_EN | ENETC_PSIVLAN_SET_QOS(qos) | vlan; 76 77 enetc_port_wr(hw, ENETC_PSIVLANR(si), val); 78 } 79 80 static int enetc_mac_addr_hash_idx(const u8 *addr) 81 { 82 u64 fold = __swab64(ether_addr_to_u64(addr)) >> 16; 83 u64 mask = 0; 84 int res = 0; 85 int i; 86 87 for (i = 0; i < 8; i++) 88 mask |= BIT_ULL(i * 6); 89 90 for (i = 0; i < 6; i++) 91 res |= (hweight64(fold & (mask << i)) & 0x1) << i; 92 93 return res; 94 } 95 96 static void enetc_reset_mac_addr_filter(struct enetc_mac_filter *filter) 97 { 98 filter->mac_addr_cnt = 0; 99 100 bitmap_zero(filter->mac_hash_table, 101 ENETC_MADDR_HASH_TBL_SZ); 102 } 103 104 static void enetc_add_mac_addr_em_filter(struct enetc_mac_filter *filter, 105 const unsigned char *addr) 106 { 107 /* add exact match addr */ 108 ether_addr_copy(filter->mac_addr, addr); 109 filter->mac_addr_cnt++; 110 } 111 112 static void enetc_add_mac_addr_ht_filter(struct enetc_mac_filter *filter, 113 const unsigned char *addr) 114 { 115 int idx = enetc_mac_addr_hash_idx(addr); 116 117 /* add hash table entry */ 118 __set_bit(idx, filter->mac_hash_table); 119 filter->mac_addr_cnt++; 120 } 121 122 static void enetc_clear_mac_ht_flt(struct enetc_si *si, int si_idx, int type) 123 { 124 bool err = si->errata & ENETC_ERR_UCMCSWP; 125 126 if (type == UC) { 127 enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), 0); 128 enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), 0); 129 } else { /* MC */ 130 enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), 0); 131 enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), 0); 132 } 133 } 134 135 static void enetc_set_mac_ht_flt(struct enetc_si *si, int si_idx, int type, 136 unsigned long hash) 137 { 138 bool err = si->errata & ENETC_ERR_UCMCSWP; 139 140 if (type == UC) { 141 enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), 142 lower_32_bits(hash)); 143 enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), 144 upper_32_bits(hash)); 145 } else { /* MC */ 146 enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), 147 lower_32_bits(hash)); 148 enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), 149 upper_32_bits(hash)); 150 } 151 } 152 153 static void enetc_sync_mac_filters(struct enetc_pf *pf) 154 { 155 struct enetc_mac_filter *f = pf->mac_filter; 156 struct enetc_si *si = pf->si; 157 int i, pos; 158 159 pos = EMETC_MAC_ADDR_FILT_RES; 160 161 for (i = 0; i < MADDR_TYPE; i++, f++) { 162 bool em = (f->mac_addr_cnt == 1) && (i == UC); 163 bool clear = !f->mac_addr_cnt; 164 165 if (clear) { 166 if (i == UC) 167 enetc_clear_mac_flt_entry(si, pos); 168 169 enetc_clear_mac_ht_flt(si, 0, i); 170 continue; 171 } 172 173 /* exact match filter */ 174 if (em) { 175 int err; 176 177 enetc_clear_mac_ht_flt(si, 0, UC); 178 179 err = enetc_set_mac_flt_entry(si, pos, f->mac_addr, 180 BIT(0)); 181 if (!err) 182 continue; 183 184 /* fallback to HT filtering */ 185 dev_warn(&si->pdev->dev, "fallback to HT filt (%d)\n", 186 err); 187 } 188 189 /* hash table filter, clear EM filter for UC entries */ 190 if (i == UC) 191 enetc_clear_mac_flt_entry(si, pos); 192 193 enetc_set_mac_ht_flt(si, 0, i, *f->mac_hash_table); 194 } 195 } 196 197 static void enetc_pf_set_rx_mode(struct net_device *ndev) 198 { 199 struct enetc_ndev_priv *priv = netdev_priv(ndev); 200 struct enetc_pf *pf = enetc_si_priv(priv->si); 201 struct enetc_hw *hw = &priv->si->hw; 202 bool uprom = false, mprom = false; 203 struct enetc_mac_filter *filter; 204 struct netdev_hw_addr *ha; 205 u32 psipmr = 0; 206 bool em; 207 208 if (ndev->flags & IFF_PROMISC) { 209 /* enable promisc mode for SI0 (PF) */ 210 psipmr = ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0); 211 uprom = true; 212 mprom = true; 213 } else if (ndev->flags & IFF_ALLMULTI) { 214 /* enable multi cast promisc mode for SI0 (PF) */ 215 psipmr = ENETC_PSIPMR_SET_MP(0); 216 mprom = true; 217 } 218 219 /* first 2 filter entries belong to PF */ 220 if (!uprom) { 221 /* Update unicast filters */ 222 filter = &pf->mac_filter[UC]; 223 enetc_reset_mac_addr_filter(filter); 224 225 em = (netdev_uc_count(ndev) == 1); 226 netdev_for_each_uc_addr(ha, ndev) { 227 if (em) { 228 enetc_add_mac_addr_em_filter(filter, ha->addr); 229 break; 230 } 231 232 enetc_add_mac_addr_ht_filter(filter, ha->addr); 233 } 234 } 235 236 if (!mprom) { 237 /* Update multicast filters */ 238 filter = &pf->mac_filter[MC]; 239 enetc_reset_mac_addr_filter(filter); 240 241 netdev_for_each_mc_addr(ha, ndev) { 242 if (!is_multicast_ether_addr(ha->addr)) 243 continue; 244 245 enetc_add_mac_addr_ht_filter(filter, ha->addr); 246 } 247 } 248 249 if (!uprom || !mprom) 250 /* update PF entries */ 251 enetc_sync_mac_filters(pf); 252 253 psipmr |= enetc_port_rd(hw, ENETC_PSIPMR) & 254 ~(ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0)); 255 enetc_port_wr(hw, ENETC_PSIPMR, psipmr); 256 } 257 258 static void enetc_set_vlan_ht_filter(struct enetc_hw *hw, int si_idx, 259 unsigned long hash) 260 { 261 enetc_port_wr(hw, ENETC_PSIVHFR0(si_idx), lower_32_bits(hash)); 262 enetc_port_wr(hw, ENETC_PSIVHFR1(si_idx), upper_32_bits(hash)); 263 } 264 265 static int enetc_vid_hash_idx(unsigned int vid) 266 { 267 int res = 0; 268 int i; 269 270 for (i = 0; i < 6; i++) 271 res |= (hweight8(vid & (BIT(i) | BIT(i + 6))) & 0x1) << i; 272 273 return res; 274 } 275 276 static void enetc_sync_vlan_ht_filter(struct enetc_pf *pf, bool rehash) 277 { 278 int i; 279 280 if (rehash) { 281 bitmap_zero(pf->vlan_ht_filter, ENETC_VLAN_HT_SIZE); 282 283 for_each_set_bit(i, pf->active_vlans, VLAN_N_VID) { 284 int hidx = enetc_vid_hash_idx(i); 285 286 __set_bit(hidx, pf->vlan_ht_filter); 287 } 288 } 289 290 enetc_set_vlan_ht_filter(&pf->si->hw, 0, *pf->vlan_ht_filter); 291 } 292 293 static int enetc_vlan_rx_add_vid(struct net_device *ndev, __be16 prot, u16 vid) 294 { 295 struct enetc_ndev_priv *priv = netdev_priv(ndev); 296 struct enetc_pf *pf = enetc_si_priv(priv->si); 297 int idx; 298 299 __set_bit(vid, pf->active_vlans); 300 301 idx = enetc_vid_hash_idx(vid); 302 if (!__test_and_set_bit(idx, pf->vlan_ht_filter)) 303 enetc_sync_vlan_ht_filter(pf, false); 304 305 return 0; 306 } 307 308 static int enetc_vlan_rx_del_vid(struct net_device *ndev, __be16 prot, u16 vid) 309 { 310 struct enetc_ndev_priv *priv = netdev_priv(ndev); 311 struct enetc_pf *pf = enetc_si_priv(priv->si); 312 313 __clear_bit(vid, pf->active_vlans); 314 enetc_sync_vlan_ht_filter(pf, true); 315 316 return 0; 317 } 318 319 static void enetc_set_loopback(struct net_device *ndev, bool en) 320 { 321 struct enetc_ndev_priv *priv = netdev_priv(ndev); 322 struct enetc_hw *hw = &priv->si->hw; 323 u32 reg; 324 325 reg = enetc_port_rd(hw, ENETC_PM0_IF_MODE); 326 if (reg & ENETC_PM0_IFM_RG) { 327 /* RGMII mode */ 328 reg = (reg & ~ENETC_PM0_IFM_RLP) | 329 (en ? ENETC_PM0_IFM_RLP : 0); 330 enetc_port_wr(hw, ENETC_PM0_IF_MODE, reg); 331 } else { 332 /* assume SGMII mode */ 333 reg = enetc_port_rd(hw, ENETC_PM0_CMD_CFG); 334 reg = (reg & ~ENETC_PM0_CMD_XGLP) | 335 (en ? ENETC_PM0_CMD_XGLP : 0); 336 reg = (reg & ~ENETC_PM0_CMD_PHY_TX_EN) | 337 (en ? ENETC_PM0_CMD_PHY_TX_EN : 0); 338 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, reg); 339 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, reg); 340 } 341 } 342 343 static int enetc_pf_set_vf_mac(struct net_device *ndev, int vf, u8 *mac) 344 { 345 struct enetc_ndev_priv *priv = netdev_priv(ndev); 346 struct enetc_pf *pf = enetc_si_priv(priv->si); 347 struct enetc_vf_state *vf_state; 348 349 if (vf >= pf->total_vfs) 350 return -EINVAL; 351 352 if (!is_valid_ether_addr(mac)) 353 return -EADDRNOTAVAIL; 354 355 vf_state = &pf->vf_state[vf]; 356 vf_state->flags |= ENETC_VF_FLAG_PF_SET_MAC; 357 enetc_pf_set_primary_mac_addr(&priv->si->hw, vf + 1, mac); 358 return 0; 359 } 360 361 static int enetc_pf_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, 362 u8 qos, __be16 proto) 363 { 364 struct enetc_ndev_priv *priv = netdev_priv(ndev); 365 struct enetc_pf *pf = enetc_si_priv(priv->si); 366 367 if (priv->si->errata & ENETC_ERR_VLAN_ISOL) 368 return -EOPNOTSUPP; 369 370 if (vf >= pf->total_vfs) 371 return -EINVAL; 372 373 if (proto != htons(ETH_P_8021Q)) 374 /* only C-tags supported for now */ 375 return -EPROTONOSUPPORT; 376 377 enetc_set_isol_vlan(&priv->si->hw, vf + 1, vlan, qos); 378 return 0; 379 } 380 381 static int enetc_pf_set_vf_spoofchk(struct net_device *ndev, int vf, bool en) 382 { 383 struct enetc_ndev_priv *priv = netdev_priv(ndev); 384 struct enetc_pf *pf = enetc_si_priv(priv->si); 385 u32 cfgr; 386 387 if (vf >= pf->total_vfs) 388 return -EINVAL; 389 390 cfgr = enetc_port_rd(&priv->si->hw, ENETC_PSICFGR0(vf + 1)); 391 cfgr = (cfgr & ~ENETC_PSICFGR0_ASE) | (en ? ENETC_PSICFGR0_ASE : 0); 392 enetc_port_wr(&priv->si->hw, ENETC_PSICFGR0(vf + 1), cfgr); 393 394 return 0; 395 } 396 397 static int enetc_setup_mac_address(struct device_node *np, struct enetc_pf *pf, 398 int si) 399 { 400 struct device *dev = &pf->si->pdev->dev; 401 struct enetc_hw *hw = &pf->si->hw; 402 u8 mac_addr[ETH_ALEN] = { 0 }; 403 int err; 404 405 /* (1) try to get the MAC address from the device tree */ 406 if (np) { 407 err = of_get_mac_address(np, mac_addr); 408 if (err == -EPROBE_DEFER) 409 return err; 410 } 411 412 /* (2) bootloader supplied MAC address */ 413 if (is_zero_ether_addr(mac_addr)) 414 enetc_pf_get_primary_mac_addr(hw, si, mac_addr); 415 416 /* (3) choose a random one */ 417 if (is_zero_ether_addr(mac_addr)) { 418 eth_random_addr(mac_addr); 419 dev_info(dev, "no MAC address specified for SI%d, using %pM\n", 420 si, mac_addr); 421 } 422 423 enetc_pf_set_primary_mac_addr(hw, si, mac_addr); 424 425 return 0; 426 } 427 428 static int enetc_setup_mac_addresses(struct device_node *np, 429 struct enetc_pf *pf) 430 { 431 int err, i; 432 433 /* The PF might take its MAC from the device tree */ 434 err = enetc_setup_mac_address(np, pf, 0); 435 if (err) 436 return err; 437 438 for (i = 0; i < pf->total_vfs; i++) { 439 err = enetc_setup_mac_address(NULL, pf, i + 1); 440 if (err) 441 return err; 442 } 443 444 return 0; 445 } 446 447 static void enetc_port_assign_rfs_entries(struct enetc_si *si) 448 { 449 struct enetc_pf *pf = enetc_si_priv(si); 450 struct enetc_hw *hw = &si->hw; 451 int num_entries, vf_entries, i; 452 u32 val; 453 454 /* split RFS entries between functions */ 455 val = enetc_port_rd(hw, ENETC_PRFSCAPR); 456 num_entries = ENETC_PRFSCAPR_GET_NUM_RFS(val); 457 vf_entries = num_entries / (pf->total_vfs + 1); 458 459 for (i = 0; i < pf->total_vfs; i++) 460 enetc_port_wr(hw, ENETC_PSIRFSCFGR(i + 1), vf_entries); 461 enetc_port_wr(hw, ENETC_PSIRFSCFGR(0), 462 num_entries - vf_entries * pf->total_vfs); 463 464 /* enable RFS on port */ 465 enetc_port_wr(hw, ENETC_PRFSMR, ENETC_PRFSMR_RFSE); 466 } 467 468 static void enetc_port_si_configure(struct enetc_si *si) 469 { 470 struct enetc_pf *pf = enetc_si_priv(si); 471 struct enetc_hw *hw = &si->hw; 472 int num_rings, i; 473 u32 val; 474 475 val = enetc_port_rd(hw, ENETC_PCAPR0); 476 num_rings = min(ENETC_PCAPR0_RXBDR(val), ENETC_PCAPR0_TXBDR(val)); 477 478 val = ENETC_PSICFGR0_SET_TXBDR(ENETC_PF_NUM_RINGS); 479 val |= ENETC_PSICFGR0_SET_RXBDR(ENETC_PF_NUM_RINGS); 480 481 if (unlikely(num_rings < ENETC_PF_NUM_RINGS)) { 482 val = ENETC_PSICFGR0_SET_TXBDR(num_rings); 483 val |= ENETC_PSICFGR0_SET_RXBDR(num_rings); 484 485 dev_warn(&si->pdev->dev, "Found %d rings, expected %d!\n", 486 num_rings, ENETC_PF_NUM_RINGS); 487 488 num_rings = 0; 489 } 490 491 /* Add default one-time settings for SI0 (PF) */ 492 val |= ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S); 493 494 enetc_port_wr(hw, ENETC_PSICFGR0(0), val); 495 496 if (num_rings) 497 num_rings -= ENETC_PF_NUM_RINGS; 498 499 /* Configure the SIs for each available VF */ 500 val = ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S); 501 val |= ENETC_PSICFGR0_VTE | ENETC_PSICFGR0_SIVIE; 502 503 if (num_rings) { 504 num_rings /= pf->total_vfs; 505 val |= ENETC_PSICFGR0_SET_TXBDR(num_rings); 506 val |= ENETC_PSICFGR0_SET_RXBDR(num_rings); 507 } 508 509 for (i = 0; i < pf->total_vfs; i++) 510 enetc_port_wr(hw, ENETC_PSICFGR0(i + 1), val); 511 512 /* Port level VLAN settings */ 513 val = ENETC_PVCLCTR_OVTPIDL(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S); 514 enetc_port_wr(hw, ENETC_PVCLCTR, val); 515 /* use outer tag for VLAN filtering */ 516 enetc_port_wr(hw, ENETC_PSIVLANFMR, ENETC_PSIVLANFMR_VS); 517 } 518 519 static void enetc_configure_port_mac(struct enetc_hw *hw) 520 { 521 int tc; 522 523 enetc_port_wr(hw, ENETC_PM0_MAXFRM, 524 ENETC_SET_MAXFRM(ENETC_RX_MAXFRM_SIZE)); 525 526 for (tc = 0; tc < 8; tc++) 527 enetc_port_wr(hw, ENETC_PTCMSDUR(tc), ENETC_MAC_MAXFRM_SIZE); 528 529 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN | 530 ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC); 531 532 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN | 533 ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC); 534 535 /* On LS1028A, the MAC RX FIFO defaults to 2, which is too high 536 * and may lead to RX lock-up under traffic. Set it to 1 instead, 537 * as recommended by the hardware team. 538 */ 539 enetc_port_wr(hw, ENETC_PM0_RX_FIFO, ENETC_PM0_RX_FIFO_VAL); 540 } 541 542 static void enetc_mac_config(struct enetc_hw *hw, phy_interface_t phy_mode) 543 { 544 u32 val; 545 546 if (phy_interface_mode_is_rgmii(phy_mode)) { 547 val = enetc_port_rd(hw, ENETC_PM0_IF_MODE); 548 val &= ~(ENETC_PM0_IFM_EN_AUTO | ENETC_PM0_IFM_IFMODE_MASK); 549 val |= ENETC_PM0_IFM_IFMODE_GMII | ENETC_PM0_IFM_RG; 550 enetc_port_wr(hw, ENETC_PM0_IF_MODE, val); 551 } 552 553 if (phy_mode == PHY_INTERFACE_MODE_USXGMII) { 554 val = ENETC_PM0_IFM_FULL_DPX | ENETC_PM0_IFM_IFMODE_XGMII; 555 enetc_port_wr(hw, ENETC_PM0_IF_MODE, val); 556 } 557 } 558 559 static void enetc_mac_enable(struct enetc_hw *hw, bool en) 560 { 561 u32 val = enetc_port_rd(hw, ENETC_PM0_CMD_CFG); 562 563 val &= ~(ENETC_PM0_TX_EN | ENETC_PM0_RX_EN); 564 val |= en ? (ENETC_PM0_TX_EN | ENETC_PM0_RX_EN) : 0; 565 566 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, val); 567 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, val); 568 } 569 570 static void enetc_configure_port_pmac(struct enetc_hw *hw) 571 { 572 u32 temp; 573 574 /* Set pMAC step lock */ 575 temp = enetc_port_rd(hw, ENETC_PFPMR); 576 enetc_port_wr(hw, ENETC_PFPMR, 577 temp | ENETC_PFPMR_PMACE | ENETC_PFPMR_MWLM); 578 579 temp = enetc_port_rd(hw, ENETC_MMCSR); 580 enetc_port_wr(hw, ENETC_MMCSR, temp | ENETC_MMCSR_ME); 581 } 582 583 static void enetc_configure_port(struct enetc_pf *pf) 584 { 585 u8 hash_key[ENETC_RSSHASH_KEY_SIZE]; 586 struct enetc_hw *hw = &pf->si->hw; 587 588 enetc_configure_port_pmac(hw); 589 590 enetc_configure_port_mac(hw); 591 592 enetc_port_si_configure(pf->si); 593 594 /* set up hash key */ 595 get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE); 596 enetc_set_rss_key(hw, hash_key); 597 598 /* split up RFS entries */ 599 enetc_port_assign_rfs_entries(pf->si); 600 601 /* enforce VLAN promisc mode for all SIs */ 602 pf->vlan_promisc_simap = ENETC_VLAN_PROMISC_MAP_ALL; 603 enetc_set_vlan_promisc(hw, pf->vlan_promisc_simap); 604 605 enetc_port_wr(hw, ENETC_PSIPMR, 0); 606 607 /* enable port */ 608 enetc_port_wr(hw, ENETC_PMR, ENETC_PMR_EN); 609 } 610 611 /* Messaging */ 612 static u16 enetc_msg_pf_set_vf_primary_mac_addr(struct enetc_pf *pf, 613 int vf_id) 614 { 615 struct enetc_vf_state *vf_state = &pf->vf_state[vf_id]; 616 struct enetc_msg_swbd *msg = &pf->rxmsg[vf_id]; 617 struct enetc_msg_cmd_set_primary_mac *cmd; 618 struct device *dev = &pf->si->pdev->dev; 619 u16 cmd_id; 620 char *addr; 621 622 cmd = (struct enetc_msg_cmd_set_primary_mac *)msg->vaddr; 623 cmd_id = cmd->header.id; 624 if (cmd_id != ENETC_MSG_CMD_MNG_ADD) 625 return ENETC_MSG_CMD_STATUS_FAIL; 626 627 addr = cmd->mac.sa_data; 628 if (vf_state->flags & ENETC_VF_FLAG_PF_SET_MAC) 629 dev_warn(dev, "Attempt to override PF set mac addr for VF%d\n", 630 vf_id); 631 else 632 enetc_pf_set_primary_mac_addr(&pf->si->hw, vf_id + 1, addr); 633 634 return ENETC_MSG_CMD_STATUS_OK; 635 } 636 637 void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int vf_id, u16 *status) 638 { 639 struct enetc_msg_swbd *msg = &pf->rxmsg[vf_id]; 640 struct device *dev = &pf->si->pdev->dev; 641 struct enetc_msg_cmd_header *cmd_hdr; 642 u16 cmd_type; 643 644 *status = ENETC_MSG_CMD_STATUS_OK; 645 cmd_hdr = (struct enetc_msg_cmd_header *)msg->vaddr; 646 cmd_type = cmd_hdr->type; 647 648 switch (cmd_type) { 649 case ENETC_MSG_CMD_MNG_MAC: 650 *status = enetc_msg_pf_set_vf_primary_mac_addr(pf, vf_id); 651 break; 652 default: 653 dev_err(dev, "command not supported (cmd_type: 0x%x)\n", 654 cmd_type); 655 } 656 } 657 658 #ifdef CONFIG_PCI_IOV 659 static int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs) 660 { 661 struct enetc_si *si = pci_get_drvdata(pdev); 662 struct enetc_pf *pf = enetc_si_priv(si); 663 int err; 664 665 if (!num_vfs) { 666 enetc_msg_psi_free(pf); 667 kfree(pf->vf_state); 668 pf->num_vfs = 0; 669 pci_disable_sriov(pdev); 670 } else { 671 pf->num_vfs = num_vfs; 672 673 pf->vf_state = kcalloc(num_vfs, sizeof(struct enetc_vf_state), 674 GFP_KERNEL); 675 if (!pf->vf_state) { 676 pf->num_vfs = 0; 677 return -ENOMEM; 678 } 679 680 err = enetc_msg_psi_init(pf); 681 if (err) { 682 dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err); 683 goto err_msg_psi; 684 } 685 686 err = pci_enable_sriov(pdev, num_vfs); 687 if (err) { 688 dev_err(&pdev->dev, "pci_enable_sriov err %d\n", err); 689 goto err_en_sriov; 690 } 691 } 692 693 return num_vfs; 694 695 err_en_sriov: 696 enetc_msg_psi_free(pf); 697 err_msg_psi: 698 kfree(pf->vf_state); 699 pf->num_vfs = 0; 700 701 return err; 702 } 703 #else 704 #define enetc_sriov_configure(pdev, num_vfs) (void)0 705 #endif 706 707 static int enetc_pf_set_features(struct net_device *ndev, 708 netdev_features_t features) 709 { 710 netdev_features_t changed = ndev->features ^ features; 711 struct enetc_ndev_priv *priv = netdev_priv(ndev); 712 713 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) { 714 struct enetc_pf *pf = enetc_si_priv(priv->si); 715 716 if (!!(features & NETIF_F_HW_VLAN_CTAG_FILTER)) 717 enetc_disable_si_vlan_promisc(pf, 0); 718 else 719 enetc_enable_si_vlan_promisc(pf, 0); 720 } 721 722 if (changed & NETIF_F_LOOPBACK) 723 enetc_set_loopback(ndev, !!(features & NETIF_F_LOOPBACK)); 724 725 return enetc_set_features(ndev, features); 726 } 727 728 static const struct net_device_ops enetc_ndev_ops = { 729 .ndo_open = enetc_open, 730 .ndo_stop = enetc_close, 731 .ndo_start_xmit = enetc_xmit, 732 .ndo_get_stats = enetc_get_stats, 733 .ndo_set_mac_address = enetc_pf_set_mac_addr, 734 .ndo_set_rx_mode = enetc_pf_set_rx_mode, 735 .ndo_vlan_rx_add_vid = enetc_vlan_rx_add_vid, 736 .ndo_vlan_rx_kill_vid = enetc_vlan_rx_del_vid, 737 .ndo_set_vf_mac = enetc_pf_set_vf_mac, 738 .ndo_set_vf_vlan = enetc_pf_set_vf_vlan, 739 .ndo_set_vf_spoofchk = enetc_pf_set_vf_spoofchk, 740 .ndo_set_features = enetc_pf_set_features, 741 .ndo_eth_ioctl = enetc_ioctl, 742 .ndo_setup_tc = enetc_setup_tc, 743 .ndo_bpf = enetc_setup_bpf, 744 .ndo_xdp_xmit = enetc_xdp_xmit, 745 }; 746 747 static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, 748 const struct net_device_ops *ndev_ops) 749 { 750 struct enetc_ndev_priv *priv = netdev_priv(ndev); 751 752 SET_NETDEV_DEV(ndev, &si->pdev->dev); 753 priv->ndev = ndev; 754 priv->si = si; 755 priv->dev = &si->pdev->dev; 756 si->ndev = ndev; 757 758 priv->msg_enable = (NETIF_MSG_WOL << 1) - 1; 759 ndev->netdev_ops = ndev_ops; 760 enetc_set_ethtool_ops(ndev); 761 ndev->watchdog_timeo = 5 * HZ; 762 ndev->max_mtu = ENETC_MAX_MTU; 763 764 ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | 765 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 766 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK | 767 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; 768 ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM | 769 NETIF_F_HW_VLAN_CTAG_TX | 770 NETIF_F_HW_VLAN_CTAG_RX | 771 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; 772 ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM | 773 NETIF_F_TSO | NETIF_F_TSO6; 774 775 if (si->num_rss) 776 ndev->hw_features |= NETIF_F_RXHASH; 777 778 ndev->priv_flags |= IFF_UNICAST_FLT; 779 780 if (si->hw_features & ENETC_SI_F_QBV) 781 priv->active_offloads |= ENETC_F_QBV; 782 783 if (si->hw_features & ENETC_SI_F_PSFP && !enetc_psfp_enable(priv)) { 784 priv->active_offloads |= ENETC_F_QCI; 785 ndev->features |= NETIF_F_HW_TC; 786 ndev->hw_features |= NETIF_F_HW_TC; 787 } 788 789 /* pick up primary MAC address from SI */ 790 enetc_load_primary_mac_addr(&si->hw, ndev); 791 } 792 793 static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np) 794 { 795 struct device *dev = &pf->si->pdev->dev; 796 struct enetc_mdio_priv *mdio_priv; 797 struct mii_bus *bus; 798 int err; 799 800 bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv)); 801 if (!bus) 802 return -ENOMEM; 803 804 bus->name = "Freescale ENETC MDIO Bus"; 805 bus->read = enetc_mdio_read; 806 bus->write = enetc_mdio_write; 807 bus->parent = dev; 808 mdio_priv = bus->priv; 809 mdio_priv->hw = &pf->si->hw; 810 mdio_priv->mdio_base = ENETC_EMDIO_BASE; 811 snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev)); 812 813 err = of_mdiobus_register(bus, np); 814 if (err) 815 return dev_err_probe(dev, err, "cannot register MDIO bus\n"); 816 817 pf->mdio = bus; 818 819 return 0; 820 } 821 822 static void enetc_mdio_remove(struct enetc_pf *pf) 823 { 824 if (pf->mdio) 825 mdiobus_unregister(pf->mdio); 826 } 827 828 static int enetc_imdio_create(struct enetc_pf *pf) 829 { 830 struct device *dev = &pf->si->pdev->dev; 831 struct enetc_mdio_priv *mdio_priv; 832 struct phylink_pcs *phylink_pcs; 833 struct mdio_device *mdio_device; 834 struct mii_bus *bus; 835 int err; 836 837 bus = mdiobus_alloc_size(sizeof(*mdio_priv)); 838 if (!bus) 839 return -ENOMEM; 840 841 bus->name = "Freescale ENETC internal MDIO Bus"; 842 bus->read = enetc_mdio_read; 843 bus->write = enetc_mdio_write; 844 bus->parent = dev; 845 bus->phy_mask = ~0; 846 mdio_priv = bus->priv; 847 mdio_priv->hw = &pf->si->hw; 848 mdio_priv->mdio_base = ENETC_PM_IMDIO_BASE; 849 snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev)); 850 851 err = mdiobus_register(bus); 852 if (err) { 853 dev_err(dev, "cannot register internal MDIO bus (%d)\n", err); 854 goto free_mdio_bus; 855 } 856 857 mdio_device = mdio_device_create(bus, 0); 858 if (IS_ERR(mdio_device)) { 859 err = PTR_ERR(mdio_device); 860 dev_err(dev, "cannot create mdio device (%d)\n", err); 861 goto unregister_mdiobus; 862 } 863 864 phylink_pcs = lynx_pcs_create(mdio_device); 865 if (!phylink_pcs) { 866 mdio_device_free(mdio_device); 867 err = -ENOMEM; 868 dev_err(dev, "cannot create lynx pcs (%d)\n", err); 869 goto unregister_mdiobus; 870 } 871 872 pf->imdio = bus; 873 pf->pcs = phylink_pcs; 874 875 return 0; 876 877 unregister_mdiobus: 878 mdiobus_unregister(bus); 879 free_mdio_bus: 880 mdiobus_free(bus); 881 return err; 882 } 883 884 static void enetc_imdio_remove(struct enetc_pf *pf) 885 { 886 struct mdio_device *mdio_device; 887 888 if (pf->pcs) { 889 mdio_device = lynx_get_mdio_device(pf->pcs); 890 mdio_device_free(mdio_device); 891 lynx_pcs_destroy(pf->pcs); 892 } 893 if (pf->imdio) { 894 mdiobus_unregister(pf->imdio); 895 mdiobus_free(pf->imdio); 896 } 897 } 898 899 static bool enetc_port_has_pcs(struct enetc_pf *pf) 900 { 901 return (pf->if_mode == PHY_INTERFACE_MODE_SGMII || 902 pf->if_mode == PHY_INTERFACE_MODE_2500BASEX || 903 pf->if_mode == PHY_INTERFACE_MODE_USXGMII); 904 } 905 906 static int enetc_mdiobus_create(struct enetc_pf *pf, struct device_node *node) 907 { 908 struct device_node *mdio_np; 909 int err; 910 911 mdio_np = of_get_child_by_name(node, "mdio"); 912 if (mdio_np) { 913 err = enetc_mdio_probe(pf, mdio_np); 914 915 of_node_put(mdio_np); 916 if (err) 917 return err; 918 } 919 920 if (enetc_port_has_pcs(pf)) { 921 err = enetc_imdio_create(pf); 922 if (err) { 923 enetc_mdio_remove(pf); 924 return err; 925 } 926 } 927 928 return 0; 929 } 930 931 static void enetc_mdiobus_destroy(struct enetc_pf *pf) 932 { 933 enetc_mdio_remove(pf); 934 enetc_imdio_remove(pf); 935 } 936 937 static void enetc_pl_mac_config(struct phylink_config *config, 938 unsigned int mode, 939 const struct phylink_link_state *state) 940 { 941 struct enetc_pf *pf = phylink_to_enetc_pf(config); 942 struct enetc_ndev_priv *priv; 943 944 enetc_mac_config(&pf->si->hw, state->interface); 945 946 priv = netdev_priv(pf->si->ndev); 947 if (pf->pcs) 948 phylink_set_pcs(priv->phylink, pf->pcs); 949 } 950 951 static void enetc_force_rgmii_mac(struct enetc_hw *hw, int speed, int duplex) 952 { 953 u32 old_val, val; 954 955 old_val = val = enetc_port_rd(hw, ENETC_PM0_IF_MODE); 956 957 if (speed == SPEED_1000) { 958 val &= ~ENETC_PM0_IFM_SSP_MASK; 959 val |= ENETC_PM0_IFM_SSP_1000; 960 } else if (speed == SPEED_100) { 961 val &= ~ENETC_PM0_IFM_SSP_MASK; 962 val |= ENETC_PM0_IFM_SSP_100; 963 } else if (speed == SPEED_10) { 964 val &= ~ENETC_PM0_IFM_SSP_MASK; 965 val |= ENETC_PM0_IFM_SSP_10; 966 } 967 968 if (duplex == DUPLEX_FULL) 969 val |= ENETC_PM0_IFM_FULL_DPX; 970 else 971 val &= ~ENETC_PM0_IFM_FULL_DPX; 972 973 if (val == old_val) 974 return; 975 976 enetc_port_wr(hw, ENETC_PM0_IF_MODE, val); 977 } 978 979 static void enetc_pl_mac_link_up(struct phylink_config *config, 980 struct phy_device *phy, unsigned int mode, 981 phy_interface_t interface, int speed, 982 int duplex, bool tx_pause, bool rx_pause) 983 { 984 struct enetc_pf *pf = phylink_to_enetc_pf(config); 985 u32 pause_off_thresh = 0, pause_on_thresh = 0; 986 u32 init_quanta = 0, refresh_quanta = 0; 987 struct enetc_hw *hw = &pf->si->hw; 988 struct enetc_ndev_priv *priv; 989 u32 rbmr, cmd_cfg; 990 int idx; 991 992 priv = netdev_priv(pf->si->ndev); 993 if (priv->active_offloads & ENETC_F_QBV) 994 enetc_sched_speed_set(priv, speed); 995 996 if (!phylink_autoneg_inband(mode) && 997 phy_interface_mode_is_rgmii(interface)) 998 enetc_force_rgmii_mac(hw, speed, duplex); 999 1000 /* Flow control */ 1001 for (idx = 0; idx < priv->num_rx_rings; idx++) { 1002 rbmr = enetc_rxbdr_rd(hw, idx, ENETC_RBMR); 1003 1004 if (tx_pause) 1005 rbmr |= ENETC_RBMR_CM; 1006 else 1007 rbmr &= ~ENETC_RBMR_CM; 1008 1009 enetc_rxbdr_wr(hw, idx, ENETC_RBMR, rbmr); 1010 } 1011 1012 if (tx_pause) { 1013 /* When the port first enters congestion, send a PAUSE request 1014 * with the maximum number of quanta. When the port exits 1015 * congestion, it will automatically send a PAUSE frame with 1016 * zero quanta. 1017 */ 1018 init_quanta = 0xffff; 1019 1020 /* Also, set up the refresh timer to send follow-up PAUSE 1021 * frames at half the quanta value, in case the congestion 1022 * condition persists. 1023 */ 1024 refresh_quanta = 0xffff / 2; 1025 1026 /* Start emitting PAUSE frames when 3 large frames (or more 1027 * smaller frames) have accumulated in the FIFO waiting to be 1028 * DMAed to the RX ring. 1029 */ 1030 pause_on_thresh = 3 * ENETC_MAC_MAXFRM_SIZE; 1031 pause_off_thresh = 1 * ENETC_MAC_MAXFRM_SIZE; 1032 } 1033 1034 enetc_port_wr(hw, ENETC_PM0_PAUSE_QUANTA, init_quanta); 1035 enetc_port_wr(hw, ENETC_PM1_PAUSE_QUANTA, init_quanta); 1036 enetc_port_wr(hw, ENETC_PM0_PAUSE_THRESH, refresh_quanta); 1037 enetc_port_wr(hw, ENETC_PM1_PAUSE_THRESH, refresh_quanta); 1038 enetc_port_wr(hw, ENETC_PPAUONTR, pause_on_thresh); 1039 enetc_port_wr(hw, ENETC_PPAUOFFTR, pause_off_thresh); 1040 1041 cmd_cfg = enetc_port_rd(hw, ENETC_PM0_CMD_CFG); 1042 1043 if (rx_pause) 1044 cmd_cfg &= ~ENETC_PM0_PAUSE_IGN; 1045 else 1046 cmd_cfg |= ENETC_PM0_PAUSE_IGN; 1047 1048 enetc_port_wr(hw, ENETC_PM0_CMD_CFG, cmd_cfg); 1049 enetc_port_wr(hw, ENETC_PM1_CMD_CFG, cmd_cfg); 1050 1051 enetc_mac_enable(hw, true); 1052 } 1053 1054 static void enetc_pl_mac_link_down(struct phylink_config *config, 1055 unsigned int mode, 1056 phy_interface_t interface) 1057 { 1058 struct enetc_pf *pf = phylink_to_enetc_pf(config); 1059 1060 enetc_mac_enable(&pf->si->hw, false); 1061 } 1062 1063 static const struct phylink_mac_ops enetc_mac_phylink_ops = { 1064 .validate = phylink_generic_validate, 1065 .mac_config = enetc_pl_mac_config, 1066 .mac_link_up = enetc_pl_mac_link_up, 1067 .mac_link_down = enetc_pl_mac_link_down, 1068 }; 1069 1070 static int enetc_phylink_create(struct enetc_ndev_priv *priv, 1071 struct device_node *node) 1072 { 1073 struct enetc_pf *pf = enetc_si_priv(priv->si); 1074 struct phylink *phylink; 1075 int err; 1076 1077 pf->phylink_config.dev = &priv->ndev->dev; 1078 pf->phylink_config.type = PHYLINK_NETDEV; 1079 pf->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | 1080 MAC_10 | MAC_100 | MAC_1000 | MAC_2500FD; 1081 1082 __set_bit(PHY_INTERFACE_MODE_INTERNAL, 1083 pf->phylink_config.supported_interfaces); 1084 __set_bit(PHY_INTERFACE_MODE_SGMII, 1085 pf->phylink_config.supported_interfaces); 1086 __set_bit(PHY_INTERFACE_MODE_2500BASEX, 1087 pf->phylink_config.supported_interfaces); 1088 __set_bit(PHY_INTERFACE_MODE_USXGMII, 1089 pf->phylink_config.supported_interfaces); 1090 phy_interface_set_rgmii(pf->phylink_config.supported_interfaces); 1091 1092 phylink = phylink_create(&pf->phylink_config, of_fwnode_handle(node), 1093 pf->if_mode, &enetc_mac_phylink_ops); 1094 if (IS_ERR(phylink)) { 1095 err = PTR_ERR(phylink); 1096 return err; 1097 } 1098 1099 priv->phylink = phylink; 1100 1101 return 0; 1102 } 1103 1104 static void enetc_phylink_destroy(struct enetc_ndev_priv *priv) 1105 { 1106 if (priv->phylink) 1107 phylink_destroy(priv->phylink); 1108 } 1109 1110 /* Initialize the entire shared memory for the flow steering entries 1111 * of this port (PF + VFs) 1112 */ 1113 static int enetc_init_port_rfs_memory(struct enetc_si *si) 1114 { 1115 struct enetc_cmd_rfse rfse = {0}; 1116 struct enetc_hw *hw = &si->hw; 1117 int num_rfs, i, err = 0; 1118 u32 val; 1119 1120 val = enetc_port_rd(hw, ENETC_PRFSCAPR); 1121 num_rfs = ENETC_PRFSCAPR_GET_NUM_RFS(val); 1122 1123 for (i = 0; i < num_rfs; i++) { 1124 err = enetc_set_fs_entry(si, &rfse, i); 1125 if (err) 1126 break; 1127 } 1128 1129 return err; 1130 } 1131 1132 static int enetc_init_port_rss_memory(struct enetc_si *si) 1133 { 1134 struct enetc_hw *hw = &si->hw; 1135 int num_rss, err; 1136 int *rss_table; 1137 u32 val; 1138 1139 val = enetc_port_rd(hw, ENETC_PRSSCAPR); 1140 num_rss = ENETC_PRSSCAPR_GET_NUM_RSS(val); 1141 if (!num_rss) 1142 return 0; 1143 1144 rss_table = kcalloc(num_rss, sizeof(*rss_table), GFP_KERNEL); 1145 if (!rss_table) 1146 return -ENOMEM; 1147 1148 err = enetc_set_rss_table(si, rss_table, num_rss); 1149 1150 kfree(rss_table); 1151 1152 return err; 1153 } 1154 1155 static int enetc_pf_register_with_ierb(struct pci_dev *pdev) 1156 { 1157 struct device_node *node = pdev->dev.of_node; 1158 struct platform_device *ierb_pdev; 1159 struct device_node *ierb_node; 1160 1161 /* Don't register with the IERB if the PF itself is disabled */ 1162 if (!node || !of_device_is_available(node)) 1163 return 0; 1164 1165 ierb_node = of_find_compatible_node(NULL, NULL, 1166 "fsl,ls1028a-enetc-ierb"); 1167 if (!ierb_node || !of_device_is_available(ierb_node)) 1168 return -ENODEV; 1169 1170 ierb_pdev = of_find_device_by_node(ierb_node); 1171 of_node_put(ierb_node); 1172 1173 if (!ierb_pdev) 1174 return -EPROBE_DEFER; 1175 1176 return enetc_ierb_register_pf(ierb_pdev, pdev); 1177 } 1178 1179 static int enetc_pf_probe(struct pci_dev *pdev, 1180 const struct pci_device_id *ent) 1181 { 1182 struct device_node *node = pdev->dev.of_node; 1183 struct enetc_ndev_priv *priv; 1184 struct net_device *ndev; 1185 struct enetc_si *si; 1186 struct enetc_pf *pf; 1187 int err; 1188 1189 err = enetc_pf_register_with_ierb(pdev); 1190 if (err == -EPROBE_DEFER) 1191 return err; 1192 if (err) 1193 dev_warn(&pdev->dev, 1194 "Could not register with IERB driver: %pe, please update the device tree\n", 1195 ERR_PTR(err)); 1196 1197 err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf)); 1198 if (err) 1199 return dev_err_probe(&pdev->dev, err, "PCI probing failed\n"); 1200 1201 si = pci_get_drvdata(pdev); 1202 if (!si->hw.port || !si->hw.global) { 1203 err = -ENODEV; 1204 dev_err(&pdev->dev, "could not map PF space, probing a VF?\n"); 1205 goto err_map_pf_space; 1206 } 1207 1208 err = enetc_setup_cbdr(&pdev->dev, &si->hw, ENETC_CBDR_DEFAULT_SIZE, 1209 &si->cbd_ring); 1210 if (err) 1211 goto err_setup_cbdr; 1212 1213 err = enetc_init_port_rfs_memory(si); 1214 if (err) { 1215 dev_err(&pdev->dev, "Failed to initialize RFS memory\n"); 1216 goto err_init_port_rfs; 1217 } 1218 1219 err = enetc_init_port_rss_memory(si); 1220 if (err) { 1221 dev_err(&pdev->dev, "Failed to initialize RSS memory\n"); 1222 goto err_init_port_rss; 1223 } 1224 1225 if (node && !of_device_is_available(node)) { 1226 dev_info(&pdev->dev, "device is disabled, skipping\n"); 1227 err = -ENODEV; 1228 goto err_device_disabled; 1229 } 1230 1231 pf = enetc_si_priv(si); 1232 pf->si = si; 1233 pf->total_vfs = pci_sriov_get_totalvfs(pdev); 1234 1235 err = enetc_setup_mac_addresses(node, pf); 1236 if (err) 1237 goto err_setup_mac_addresses; 1238 1239 enetc_configure_port(pf); 1240 1241 enetc_get_si_caps(si); 1242 1243 ndev = alloc_etherdev_mq(sizeof(*priv), ENETC_MAX_NUM_TXQS); 1244 if (!ndev) { 1245 err = -ENOMEM; 1246 dev_err(&pdev->dev, "netdev creation failed\n"); 1247 goto err_alloc_netdev; 1248 } 1249 1250 enetc_pf_netdev_setup(si, ndev, &enetc_ndev_ops); 1251 1252 priv = netdev_priv(ndev); 1253 1254 enetc_init_si_rings_params(priv); 1255 1256 err = enetc_alloc_si_resources(priv); 1257 if (err) { 1258 dev_err(&pdev->dev, "SI resource alloc failed\n"); 1259 goto err_alloc_si_res; 1260 } 1261 1262 err = enetc_configure_si(priv); 1263 if (err) { 1264 dev_err(&pdev->dev, "Failed to configure SI\n"); 1265 goto err_config_si; 1266 } 1267 1268 err = enetc_alloc_msix(priv); 1269 if (err) { 1270 dev_err(&pdev->dev, "MSIX alloc failed\n"); 1271 goto err_alloc_msix; 1272 } 1273 1274 if (!of_get_phy_mode(node, &pf->if_mode)) { 1275 err = enetc_mdiobus_create(pf, node); 1276 if (err) 1277 goto err_mdiobus_create; 1278 1279 err = enetc_phylink_create(priv, node); 1280 if (err) 1281 goto err_phylink_create; 1282 } 1283 1284 err = register_netdev(ndev); 1285 if (err) 1286 goto err_reg_netdev; 1287 1288 return 0; 1289 1290 err_reg_netdev: 1291 enetc_phylink_destroy(priv); 1292 err_phylink_create: 1293 enetc_mdiobus_destroy(pf); 1294 err_mdiobus_create: 1295 enetc_free_msix(priv); 1296 err_config_si: 1297 err_alloc_msix: 1298 enetc_free_si_resources(priv); 1299 err_alloc_si_res: 1300 si->ndev = NULL; 1301 free_netdev(ndev); 1302 err_alloc_netdev: 1303 err_init_port_rss: 1304 err_init_port_rfs: 1305 err_device_disabled: 1306 err_setup_mac_addresses: 1307 enetc_teardown_cbdr(&si->cbd_ring); 1308 err_setup_cbdr: 1309 err_map_pf_space: 1310 enetc_pci_remove(pdev); 1311 1312 return err; 1313 } 1314 1315 static void enetc_pf_remove(struct pci_dev *pdev) 1316 { 1317 struct enetc_si *si = pci_get_drvdata(pdev); 1318 struct enetc_pf *pf = enetc_si_priv(si); 1319 struct enetc_ndev_priv *priv; 1320 1321 priv = netdev_priv(si->ndev); 1322 1323 if (pf->num_vfs) 1324 enetc_sriov_configure(pdev, 0); 1325 1326 unregister_netdev(si->ndev); 1327 1328 enetc_phylink_destroy(priv); 1329 enetc_mdiobus_destroy(pf); 1330 1331 enetc_free_msix(priv); 1332 1333 enetc_free_si_resources(priv); 1334 enetc_teardown_cbdr(&si->cbd_ring); 1335 1336 free_netdev(si->ndev); 1337 1338 enetc_pci_remove(pdev); 1339 } 1340 1341 static const struct pci_device_id enetc_pf_id_table[] = { 1342 { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PF) }, 1343 { 0, } /* End of table. */ 1344 }; 1345 MODULE_DEVICE_TABLE(pci, enetc_pf_id_table); 1346 1347 static struct pci_driver enetc_pf_driver = { 1348 .name = KBUILD_MODNAME, 1349 .id_table = enetc_pf_id_table, 1350 .probe = enetc_pf_probe, 1351 .remove = enetc_pf_remove, 1352 #ifdef CONFIG_PCI_IOV 1353 .sriov_configure = enetc_sriov_configure, 1354 #endif 1355 }; 1356 module_pci_driver(enetc_pf_driver); 1357 1358 MODULE_DESCRIPTION(ENETC_DRV_NAME_STR); 1359 MODULE_LICENSE("Dual BSD/GPL"); 1360