1 /* niu.c: Neptune ethernet driver. 2 * 3 * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net) 4 */ 5 6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 7 8 #include <linux/module.h> 9 #include <linux/init.h> 10 #include <linux/interrupt.h> 11 #include <linux/pci.h> 12 #include <linux/dma-mapping.h> 13 #include <linux/netdevice.h> 14 #include <linux/ethtool.h> 15 #include <linux/etherdevice.h> 16 #include <linux/platform_device.h> 17 #include <linux/delay.h> 18 #include <linux/bitops.h> 19 #include <linux/mii.h> 20 #include <linux/if.h> 21 #include <linux/if_ether.h> 22 #include <linux/if_vlan.h> 23 #include <linux/ip.h> 24 #include <linux/in.h> 25 #include <linux/ipv6.h> 26 #include <linux/log2.h> 27 #include <linux/jiffies.h> 28 #include <linux/crc32.h> 29 #include <linux/list.h> 30 #include <linux/slab.h> 31 32 #include <linux/io.h> 33 #include <linux/of_device.h> 34 35 #include "niu.h" 36 37 #define DRV_MODULE_NAME "niu" 38 #define DRV_MODULE_VERSION "1.1" 39 #define DRV_MODULE_RELDATE "Apr 22, 2010" 40 41 static char version[] = 42 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; 43 44 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); 45 MODULE_DESCRIPTION("NIU ethernet driver"); 46 MODULE_LICENSE("GPL"); 47 MODULE_VERSION(DRV_MODULE_VERSION); 48 49 #ifndef readq 50 static u64 readq(void __iomem *reg) 51 { 52 return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32); 53 } 54 55 static void writeq(u64 val, void __iomem *reg) 56 { 57 writel(val & 0xffffffff, reg); 58 writel(val >> 32, reg + 0x4UL); 59 } 60 #endif 61 62 static const struct pci_device_id niu_pci_tbl[] = { 63 {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)}, 64 {} 65 }; 66 67 MODULE_DEVICE_TABLE(pci, niu_pci_tbl); 68 69 #define NIU_TX_TIMEOUT (5 * HZ) 70 71 #define nr64(reg) readq(np->regs + (reg)) 72 #define nw64(reg, val) writeq((val), np->regs + (reg)) 73 74 #define nr64_mac(reg) readq(np->mac_regs + (reg)) 75 #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg)) 76 77 #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg)) 78 #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg)) 79 80 #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg)) 81 #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg)) 82 83 #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg)) 84 #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg)) 85 86 #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) 87 88 static int niu_debug; 89 static int debug = -1; 90 module_param(debug, int, 0); 91 MODULE_PARM_DESC(debug, "NIU debug level"); 92 93 #define niu_lock_parent(np, flags) \ 94 spin_lock_irqsave(&np->parent->lock, flags) 95 #define niu_unlock_parent(np, flags) \ 96 spin_unlock_irqrestore(&np->parent->lock, flags) 97 98 static int serdes_init_10g_serdes(struct niu *np); 99 100 static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg, 101 u64 bits, int limit, int delay) 102 { 103 while (--limit >= 0) { 104 u64 val = nr64_mac(reg); 105 106 if (!(val & bits)) 107 break; 108 udelay(delay); 109 } 110 if (limit < 0) 111 return -ENODEV; 112 return 0; 113 } 114 115 static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg, 116 u64 bits, int limit, int delay, 117 const char *reg_name) 118 { 119 int err; 120 121 nw64_mac(reg, bits); 122 err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay); 123 if (err) 124 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", 125 (unsigned long long)bits, reg_name, 126 (unsigned long long)nr64_mac(reg)); 127 return err; 128 } 129 130 #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ 131 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ 132 __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ 133 }) 134 135 static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg, 136 u64 bits, int limit, int delay) 137 { 138 while (--limit >= 0) { 139 u64 val = nr64_ipp(reg); 140 141 if (!(val & bits)) 142 break; 143 udelay(delay); 144 } 145 if (limit < 0) 146 return -ENODEV; 147 return 0; 148 } 149 150 static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg, 151 u64 bits, int limit, int delay, 152 const char *reg_name) 153 { 154 int err; 155 u64 val; 156 157 val = nr64_ipp(reg); 158 val |= bits; 159 nw64_ipp(reg, val); 160 161 err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay); 162 if (err) 163 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", 164 (unsigned long long)bits, reg_name, 165 (unsigned long long)nr64_ipp(reg)); 166 return err; 167 } 168 169 #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ 170 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ 171 __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ 172 }) 173 174 static int __niu_wait_bits_clear(struct niu *np, unsigned long reg, 175 u64 bits, int limit, int delay) 176 { 177 while (--limit >= 0) { 178 u64 val = nr64(reg); 179 180 if (!(val & bits)) 181 break; 182 udelay(delay); 183 } 184 if (limit < 0) 185 return -ENODEV; 186 return 0; 187 } 188 189 #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \ 190 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ 191 __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \ 192 }) 193 194 static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg, 195 u64 bits, int limit, int delay, 196 const char *reg_name) 197 { 198 int err; 199 200 nw64(reg, bits); 201 err = __niu_wait_bits_clear(np, reg, bits, limit, delay); 202 if (err) 203 netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", 204 (unsigned long long)bits, reg_name, 205 (unsigned long long)nr64(reg)); 206 return err; 207 } 208 209 #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ 210 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ 211 __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ 212 }) 213 214 static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on) 215 { 216 u64 val = (u64) lp->timer; 217 218 if (on) 219 val |= LDG_IMGMT_ARM; 220 221 nw64(LDG_IMGMT(lp->ldg_num), val); 222 } 223 224 static int niu_ldn_irq_enable(struct niu *np, int ldn, int on) 225 { 226 unsigned long mask_reg, bits; 227 u64 val; 228 229 if (ldn < 0 || ldn > LDN_MAX) 230 return -EINVAL; 231 232 if (ldn < 64) { 233 mask_reg = LD_IM0(ldn); 234 bits = LD_IM0_MASK; 235 } else { 236 mask_reg = LD_IM1(ldn - 64); 237 bits = LD_IM1_MASK; 238 } 239 240 val = nr64(mask_reg); 241 if (on) 242 val &= ~bits; 243 else 244 val |= bits; 245 nw64(mask_reg, val); 246 247 return 0; 248 } 249 250 static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on) 251 { 252 struct niu_parent *parent = np->parent; 253 int i; 254 255 for (i = 0; i <= LDN_MAX; i++) { 256 int err; 257 258 if (parent->ldg_map[i] != lp->ldg_num) 259 continue; 260 261 err = niu_ldn_irq_enable(np, i, on); 262 if (err) 263 return err; 264 } 265 return 0; 266 } 267 268 static int niu_enable_interrupts(struct niu *np, int on) 269 { 270 int i; 271 272 for (i = 0; i < np->num_ldg; i++) { 273 struct niu_ldg *lp = &np->ldg[i]; 274 int err; 275 276 err = niu_enable_ldn_in_ldg(np, lp, on); 277 if (err) 278 return err; 279 } 280 for (i = 0; i < np->num_ldg; i++) 281 niu_ldg_rearm(np, &np->ldg[i], on); 282 283 return 0; 284 } 285 286 static u32 phy_encode(u32 type, int port) 287 { 288 return type << (port * 2); 289 } 290 291 static u32 phy_decode(u32 val, int port) 292 { 293 return (val >> (port * 2)) & PORT_TYPE_MASK; 294 } 295 296 static int mdio_wait(struct niu *np) 297 { 298 int limit = 1000; 299 u64 val; 300 301 while (--limit > 0) { 302 val = nr64(MIF_FRAME_OUTPUT); 303 if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1) 304 return val & MIF_FRAME_OUTPUT_DATA; 305 306 udelay(10); 307 } 308 309 return -ENODEV; 310 } 311 312 static int mdio_read(struct niu *np, int port, int dev, int reg) 313 { 314 int err; 315 316 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); 317 err = mdio_wait(np); 318 if (err < 0) 319 return err; 320 321 nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev)); 322 return mdio_wait(np); 323 } 324 325 static int mdio_write(struct niu *np, int port, int dev, int reg, int data) 326 { 327 int err; 328 329 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); 330 err = mdio_wait(np); 331 if (err < 0) 332 return err; 333 334 nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data)); 335 err = mdio_wait(np); 336 if (err < 0) 337 return err; 338 339 return 0; 340 } 341 342 static int mii_read(struct niu *np, int port, int reg) 343 { 344 nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg)); 345 return mdio_wait(np); 346 } 347 348 static int mii_write(struct niu *np, int port, int reg, int data) 349 { 350 int err; 351 352 nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data)); 353 err = mdio_wait(np); 354 if (err < 0) 355 return err; 356 357 return 0; 358 } 359 360 static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val) 361 { 362 int err; 363 364 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 365 ESR2_TI_PLL_TX_CFG_L(channel), 366 val & 0xffff); 367 if (!err) 368 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 369 ESR2_TI_PLL_TX_CFG_H(channel), 370 val >> 16); 371 return err; 372 } 373 374 static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val) 375 { 376 int err; 377 378 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 379 ESR2_TI_PLL_RX_CFG_L(channel), 380 val & 0xffff); 381 if (!err) 382 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 383 ESR2_TI_PLL_RX_CFG_H(channel), 384 val >> 16); 385 return err; 386 } 387 388 /* Mode is always 10G fiber. */ 389 static int serdes_init_niu_10g_fiber(struct niu *np) 390 { 391 struct niu_link_config *lp = &np->link_config; 392 u32 tx_cfg, rx_cfg; 393 unsigned long i; 394 395 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); 396 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | 397 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | 398 PLL_RX_CFG_EQ_LP_ADAPTIVE); 399 400 if (lp->loopback_mode == LOOPBACK_PHY) { 401 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; 402 403 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 404 ESR2_TI_PLL_TEST_CFG_L, test_cfg); 405 406 tx_cfg |= PLL_TX_CFG_ENTEST; 407 rx_cfg |= PLL_RX_CFG_ENTEST; 408 } 409 410 /* Initialize all 4 lanes of the SERDES. */ 411 for (i = 0; i < 4; i++) { 412 int err = esr2_set_tx_cfg(np, i, tx_cfg); 413 if (err) 414 return err; 415 } 416 417 for (i = 0; i < 4; i++) { 418 int err = esr2_set_rx_cfg(np, i, rx_cfg); 419 if (err) 420 return err; 421 } 422 423 return 0; 424 } 425 426 static int serdes_init_niu_1g_serdes(struct niu *np) 427 { 428 struct niu_link_config *lp = &np->link_config; 429 u16 pll_cfg, pll_sts; 430 int max_retry = 100; 431 u64 uninitialized_var(sig), mask, val; 432 u32 tx_cfg, rx_cfg; 433 unsigned long i; 434 int err; 435 436 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV | 437 PLL_TX_CFG_RATE_HALF); 438 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | 439 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | 440 PLL_RX_CFG_RATE_HALF); 441 442 if (np->port == 0) 443 rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE; 444 445 if (lp->loopback_mode == LOOPBACK_PHY) { 446 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; 447 448 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 449 ESR2_TI_PLL_TEST_CFG_L, test_cfg); 450 451 tx_cfg |= PLL_TX_CFG_ENTEST; 452 rx_cfg |= PLL_RX_CFG_ENTEST; 453 } 454 455 /* Initialize PLL for 1G */ 456 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X); 457 458 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 459 ESR2_TI_PLL_CFG_L, pll_cfg); 460 if (err) { 461 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", 462 np->port, __func__); 463 return err; 464 } 465 466 pll_sts = PLL_CFG_ENPLL; 467 468 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 469 ESR2_TI_PLL_STS_L, pll_sts); 470 if (err) { 471 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", 472 np->port, __func__); 473 return err; 474 } 475 476 udelay(200); 477 478 /* Initialize all 4 lanes of the SERDES. */ 479 for (i = 0; i < 4; i++) { 480 err = esr2_set_tx_cfg(np, i, tx_cfg); 481 if (err) 482 return err; 483 } 484 485 for (i = 0; i < 4; i++) { 486 err = esr2_set_rx_cfg(np, i, rx_cfg); 487 if (err) 488 return err; 489 } 490 491 switch (np->port) { 492 case 0: 493 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); 494 mask = val; 495 break; 496 497 case 1: 498 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); 499 mask = val; 500 break; 501 502 default: 503 return -EINVAL; 504 } 505 506 while (max_retry--) { 507 sig = nr64(ESR_INT_SIGNALS); 508 if ((sig & mask) == val) 509 break; 510 511 mdelay(500); 512 } 513 514 if ((sig & mask) != val) { 515 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", 516 np->port, (int)(sig & mask), (int)val); 517 return -ENODEV; 518 } 519 520 return 0; 521 } 522 523 static int serdes_init_niu_10g_serdes(struct niu *np) 524 { 525 struct niu_link_config *lp = &np->link_config; 526 u32 tx_cfg, rx_cfg, pll_cfg, pll_sts; 527 int max_retry = 100; 528 u64 uninitialized_var(sig), mask, val; 529 unsigned long i; 530 int err; 531 532 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); 533 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | 534 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | 535 PLL_RX_CFG_EQ_LP_ADAPTIVE); 536 537 if (lp->loopback_mode == LOOPBACK_PHY) { 538 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; 539 540 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 541 ESR2_TI_PLL_TEST_CFG_L, test_cfg); 542 543 tx_cfg |= PLL_TX_CFG_ENTEST; 544 rx_cfg |= PLL_RX_CFG_ENTEST; 545 } 546 547 /* Initialize PLL for 10G */ 548 pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X); 549 550 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 551 ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff); 552 if (err) { 553 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", 554 np->port, __func__); 555 return err; 556 } 557 558 pll_sts = PLL_CFG_ENPLL; 559 560 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, 561 ESR2_TI_PLL_STS_L, pll_sts & 0xffff); 562 if (err) { 563 netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", 564 np->port, __func__); 565 return err; 566 } 567 568 udelay(200); 569 570 /* Initialize all 4 lanes of the SERDES. */ 571 for (i = 0; i < 4; i++) { 572 err = esr2_set_tx_cfg(np, i, tx_cfg); 573 if (err) 574 return err; 575 } 576 577 for (i = 0; i < 4; i++) { 578 err = esr2_set_rx_cfg(np, i, rx_cfg); 579 if (err) 580 return err; 581 } 582 583 /* check if serdes is ready */ 584 585 switch (np->port) { 586 case 0: 587 mask = ESR_INT_SIGNALS_P0_BITS; 588 val = (ESR_INT_SRDY0_P0 | 589 ESR_INT_DET0_P0 | 590 ESR_INT_XSRDY_P0 | 591 ESR_INT_XDP_P0_CH3 | 592 ESR_INT_XDP_P0_CH2 | 593 ESR_INT_XDP_P0_CH1 | 594 ESR_INT_XDP_P0_CH0); 595 break; 596 597 case 1: 598 mask = ESR_INT_SIGNALS_P1_BITS; 599 val = (ESR_INT_SRDY0_P1 | 600 ESR_INT_DET0_P1 | 601 ESR_INT_XSRDY_P1 | 602 ESR_INT_XDP_P1_CH3 | 603 ESR_INT_XDP_P1_CH2 | 604 ESR_INT_XDP_P1_CH1 | 605 ESR_INT_XDP_P1_CH0); 606 break; 607 608 default: 609 return -EINVAL; 610 } 611 612 while (max_retry--) { 613 sig = nr64(ESR_INT_SIGNALS); 614 if ((sig & mask) == val) 615 break; 616 617 mdelay(500); 618 } 619 620 if ((sig & mask) != val) { 621 pr_info("NIU Port %u signal bits [%08x] are not [%08x] for 10G...trying 1G\n", 622 np->port, (int)(sig & mask), (int)val); 623 624 /* 10G failed, try initializing at 1G */ 625 err = serdes_init_niu_1g_serdes(np); 626 if (!err) { 627 np->flags &= ~NIU_FLAGS_10G; 628 np->mac_xcvr = MAC_XCVR_PCS; 629 } else { 630 netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", 631 np->port); 632 return -ENODEV; 633 } 634 } 635 return 0; 636 } 637 638 static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val) 639 { 640 int err; 641 642 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan)); 643 if (err >= 0) { 644 *val = (err & 0xffff); 645 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, 646 ESR_RXTX_CTRL_H(chan)); 647 if (err >= 0) 648 *val |= ((err & 0xffff) << 16); 649 err = 0; 650 } 651 return err; 652 } 653 654 static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val) 655 { 656 int err; 657 658 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, 659 ESR_GLUE_CTRL0_L(chan)); 660 if (err >= 0) { 661 *val = (err & 0xffff); 662 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, 663 ESR_GLUE_CTRL0_H(chan)); 664 if (err >= 0) { 665 *val |= ((err & 0xffff) << 16); 666 err = 0; 667 } 668 } 669 return err; 670 } 671 672 static int esr_read_reset(struct niu *np, u32 *val) 673 { 674 int err; 675 676 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, 677 ESR_RXTX_RESET_CTRL_L); 678 if (err >= 0) { 679 *val = (err & 0xffff); 680 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, 681 ESR_RXTX_RESET_CTRL_H); 682 if (err >= 0) { 683 *val |= ((err & 0xffff) << 16); 684 err = 0; 685 } 686 } 687 return err; 688 } 689 690 static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val) 691 { 692 int err; 693 694 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 695 ESR_RXTX_CTRL_L(chan), val & 0xffff); 696 if (!err) 697 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 698 ESR_RXTX_CTRL_H(chan), (val >> 16)); 699 return err; 700 } 701 702 static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val) 703 { 704 int err; 705 706 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 707 ESR_GLUE_CTRL0_L(chan), val & 0xffff); 708 if (!err) 709 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 710 ESR_GLUE_CTRL0_H(chan), (val >> 16)); 711 return err; 712 } 713 714 static int esr_reset(struct niu *np) 715 { 716 u32 uninitialized_var(reset); 717 int err; 718 719 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 720 ESR_RXTX_RESET_CTRL_L, 0x0000); 721 if (err) 722 return err; 723 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 724 ESR_RXTX_RESET_CTRL_H, 0xffff); 725 if (err) 726 return err; 727 udelay(200); 728 729 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 730 ESR_RXTX_RESET_CTRL_L, 0xffff); 731 if (err) 732 return err; 733 udelay(200); 734 735 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, 736 ESR_RXTX_RESET_CTRL_H, 0x0000); 737 if (err) 738 return err; 739 udelay(200); 740 741 err = esr_read_reset(np, &reset); 742 if (err) 743 return err; 744 if (reset != 0) { 745 netdev_err(np->dev, "Port %u ESR_RESET did not clear [%08x]\n", 746 np->port, reset); 747 return -ENODEV; 748 } 749 750 return 0; 751 } 752 753 static int serdes_init_10g(struct niu *np) 754 { 755 struct niu_link_config *lp = &np->link_config; 756 unsigned long ctrl_reg, test_cfg_reg, i; 757 u64 ctrl_val, test_cfg_val, sig, mask, val; 758 int err; 759 760 switch (np->port) { 761 case 0: 762 ctrl_reg = ENET_SERDES_0_CTRL_CFG; 763 test_cfg_reg = ENET_SERDES_0_TEST_CFG; 764 break; 765 case 1: 766 ctrl_reg = ENET_SERDES_1_CTRL_CFG; 767 test_cfg_reg = ENET_SERDES_1_TEST_CFG; 768 break; 769 770 default: 771 return -EINVAL; 772 } 773 ctrl_val = (ENET_SERDES_CTRL_SDET_0 | 774 ENET_SERDES_CTRL_SDET_1 | 775 ENET_SERDES_CTRL_SDET_2 | 776 ENET_SERDES_CTRL_SDET_3 | 777 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | 778 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | 779 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | 780 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | 781 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | 782 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | 783 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | 784 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); 785 test_cfg_val = 0; 786 787 if (lp->loopback_mode == LOOPBACK_PHY) { 788 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << 789 ENET_SERDES_TEST_MD_0_SHIFT) | 790 (ENET_TEST_MD_PAD_LOOPBACK << 791 ENET_SERDES_TEST_MD_1_SHIFT) | 792 (ENET_TEST_MD_PAD_LOOPBACK << 793 ENET_SERDES_TEST_MD_2_SHIFT) | 794 (ENET_TEST_MD_PAD_LOOPBACK << 795 ENET_SERDES_TEST_MD_3_SHIFT)); 796 } 797 798 nw64(ctrl_reg, ctrl_val); 799 nw64(test_cfg_reg, test_cfg_val); 800 801 /* Initialize all 4 lanes of the SERDES. */ 802 for (i = 0; i < 4; i++) { 803 u32 rxtx_ctrl, glue0; 804 805 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); 806 if (err) 807 return err; 808 err = esr_read_glue0(np, i, &glue0); 809 if (err) 810 return err; 811 812 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); 813 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | 814 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); 815 816 glue0 &= ~(ESR_GLUE_CTRL0_SRATE | 817 ESR_GLUE_CTRL0_THCNT | 818 ESR_GLUE_CTRL0_BLTIME); 819 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | 820 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | 821 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | 822 (BLTIME_300_CYCLES << 823 ESR_GLUE_CTRL0_BLTIME_SHIFT)); 824 825 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); 826 if (err) 827 return err; 828 err = esr_write_glue0(np, i, glue0); 829 if (err) 830 return err; 831 } 832 833 err = esr_reset(np); 834 if (err) 835 return err; 836 837 sig = nr64(ESR_INT_SIGNALS); 838 switch (np->port) { 839 case 0: 840 mask = ESR_INT_SIGNALS_P0_BITS; 841 val = (ESR_INT_SRDY0_P0 | 842 ESR_INT_DET0_P0 | 843 ESR_INT_XSRDY_P0 | 844 ESR_INT_XDP_P0_CH3 | 845 ESR_INT_XDP_P0_CH2 | 846 ESR_INT_XDP_P0_CH1 | 847 ESR_INT_XDP_P0_CH0); 848 break; 849 850 case 1: 851 mask = ESR_INT_SIGNALS_P1_BITS; 852 val = (ESR_INT_SRDY0_P1 | 853 ESR_INT_DET0_P1 | 854 ESR_INT_XSRDY_P1 | 855 ESR_INT_XDP_P1_CH3 | 856 ESR_INT_XDP_P1_CH2 | 857 ESR_INT_XDP_P1_CH1 | 858 ESR_INT_XDP_P1_CH0); 859 break; 860 861 default: 862 return -EINVAL; 863 } 864 865 if ((sig & mask) != val) { 866 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { 867 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; 868 return 0; 869 } 870 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", 871 np->port, (int)(sig & mask), (int)val); 872 return -ENODEV; 873 } 874 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) 875 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; 876 return 0; 877 } 878 879 static int serdes_init_1g(struct niu *np) 880 { 881 u64 val; 882 883 val = nr64(ENET_SERDES_1_PLL_CFG); 884 val &= ~ENET_SERDES_PLL_FBDIV2; 885 switch (np->port) { 886 case 0: 887 val |= ENET_SERDES_PLL_HRATE0; 888 break; 889 case 1: 890 val |= ENET_SERDES_PLL_HRATE1; 891 break; 892 case 2: 893 val |= ENET_SERDES_PLL_HRATE2; 894 break; 895 case 3: 896 val |= ENET_SERDES_PLL_HRATE3; 897 break; 898 default: 899 return -EINVAL; 900 } 901 nw64(ENET_SERDES_1_PLL_CFG, val); 902 903 return 0; 904 } 905 906 static int serdes_init_1g_serdes(struct niu *np) 907 { 908 struct niu_link_config *lp = &np->link_config; 909 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; 910 u64 ctrl_val, test_cfg_val, sig, mask, val; 911 int err; 912 u64 reset_val, val_rd; 913 914 val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 | 915 ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 | 916 ENET_SERDES_PLL_FBDIV0; 917 switch (np->port) { 918 case 0: 919 reset_val = ENET_SERDES_RESET_0; 920 ctrl_reg = ENET_SERDES_0_CTRL_CFG; 921 test_cfg_reg = ENET_SERDES_0_TEST_CFG; 922 pll_cfg = ENET_SERDES_0_PLL_CFG; 923 break; 924 case 1: 925 reset_val = ENET_SERDES_RESET_1; 926 ctrl_reg = ENET_SERDES_1_CTRL_CFG; 927 test_cfg_reg = ENET_SERDES_1_TEST_CFG; 928 pll_cfg = ENET_SERDES_1_PLL_CFG; 929 break; 930 931 default: 932 return -EINVAL; 933 } 934 ctrl_val = (ENET_SERDES_CTRL_SDET_0 | 935 ENET_SERDES_CTRL_SDET_1 | 936 ENET_SERDES_CTRL_SDET_2 | 937 ENET_SERDES_CTRL_SDET_3 | 938 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | 939 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | 940 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | 941 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | 942 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | 943 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | 944 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | 945 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); 946 test_cfg_val = 0; 947 948 if (lp->loopback_mode == LOOPBACK_PHY) { 949 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << 950 ENET_SERDES_TEST_MD_0_SHIFT) | 951 (ENET_TEST_MD_PAD_LOOPBACK << 952 ENET_SERDES_TEST_MD_1_SHIFT) | 953 (ENET_TEST_MD_PAD_LOOPBACK << 954 ENET_SERDES_TEST_MD_2_SHIFT) | 955 (ENET_TEST_MD_PAD_LOOPBACK << 956 ENET_SERDES_TEST_MD_3_SHIFT)); 957 } 958 959 nw64(ENET_SERDES_RESET, reset_val); 960 mdelay(20); 961 val_rd = nr64(ENET_SERDES_RESET); 962 val_rd &= ~reset_val; 963 nw64(pll_cfg, val); 964 nw64(ctrl_reg, ctrl_val); 965 nw64(test_cfg_reg, test_cfg_val); 966 nw64(ENET_SERDES_RESET, val_rd); 967 mdelay(2000); 968 969 /* Initialize all 4 lanes of the SERDES. */ 970 for (i = 0; i < 4; i++) { 971 u32 rxtx_ctrl, glue0; 972 973 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); 974 if (err) 975 return err; 976 err = esr_read_glue0(np, i, &glue0); 977 if (err) 978 return err; 979 980 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); 981 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | 982 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); 983 984 glue0 &= ~(ESR_GLUE_CTRL0_SRATE | 985 ESR_GLUE_CTRL0_THCNT | 986 ESR_GLUE_CTRL0_BLTIME); 987 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | 988 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | 989 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | 990 (BLTIME_300_CYCLES << 991 ESR_GLUE_CTRL0_BLTIME_SHIFT)); 992 993 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); 994 if (err) 995 return err; 996 err = esr_write_glue0(np, i, glue0); 997 if (err) 998 return err; 999 } 1000 1001 1002 sig = nr64(ESR_INT_SIGNALS); 1003 switch (np->port) { 1004 case 0: 1005 val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); 1006 mask = val; 1007 break; 1008 1009 case 1: 1010 val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); 1011 mask = val; 1012 break; 1013 1014 default: 1015 return -EINVAL; 1016 } 1017 1018 if ((sig & mask) != val) { 1019 netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", 1020 np->port, (int)(sig & mask), (int)val); 1021 return -ENODEV; 1022 } 1023 1024 return 0; 1025 } 1026 1027 static int link_status_1g_serdes(struct niu *np, int *link_up_p) 1028 { 1029 struct niu_link_config *lp = &np->link_config; 1030 int link_up; 1031 u64 val; 1032 u16 current_speed; 1033 unsigned long flags; 1034 u8 current_duplex; 1035 1036 link_up = 0; 1037 current_speed = SPEED_INVALID; 1038 current_duplex = DUPLEX_INVALID; 1039 1040 spin_lock_irqsave(&np->lock, flags); 1041 1042 val = nr64_pcs(PCS_MII_STAT); 1043 1044 if (val & PCS_MII_STAT_LINK_STATUS) { 1045 link_up = 1; 1046 current_speed = SPEED_1000; 1047 current_duplex = DUPLEX_FULL; 1048 } 1049 1050 lp->active_speed = current_speed; 1051 lp->active_duplex = current_duplex; 1052 spin_unlock_irqrestore(&np->lock, flags); 1053 1054 *link_up_p = link_up; 1055 return 0; 1056 } 1057 1058 static int link_status_10g_serdes(struct niu *np, int *link_up_p) 1059 { 1060 unsigned long flags; 1061 struct niu_link_config *lp = &np->link_config; 1062 int link_up = 0; 1063 int link_ok = 1; 1064 u64 val, val2; 1065 u16 current_speed; 1066 u8 current_duplex; 1067 1068 if (!(np->flags & NIU_FLAGS_10G)) 1069 return link_status_1g_serdes(np, link_up_p); 1070 1071 current_speed = SPEED_INVALID; 1072 current_duplex = DUPLEX_INVALID; 1073 spin_lock_irqsave(&np->lock, flags); 1074 1075 val = nr64_xpcs(XPCS_STATUS(0)); 1076 val2 = nr64_mac(XMAC_INTER2); 1077 if (val2 & 0x01000000) 1078 link_ok = 0; 1079 1080 if ((val & 0x1000ULL) && link_ok) { 1081 link_up = 1; 1082 current_speed = SPEED_10000; 1083 current_duplex = DUPLEX_FULL; 1084 } 1085 lp->active_speed = current_speed; 1086 lp->active_duplex = current_duplex; 1087 spin_unlock_irqrestore(&np->lock, flags); 1088 *link_up_p = link_up; 1089 return 0; 1090 } 1091 1092 static int link_status_mii(struct niu *np, int *link_up_p) 1093 { 1094 struct niu_link_config *lp = &np->link_config; 1095 int err; 1096 int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus; 1097 int supported, advertising, active_speed, active_duplex; 1098 1099 err = mii_read(np, np->phy_addr, MII_BMCR); 1100 if (unlikely(err < 0)) 1101 return err; 1102 bmcr = err; 1103 1104 err = mii_read(np, np->phy_addr, MII_BMSR); 1105 if (unlikely(err < 0)) 1106 return err; 1107 bmsr = err; 1108 1109 err = mii_read(np, np->phy_addr, MII_ADVERTISE); 1110 if (unlikely(err < 0)) 1111 return err; 1112 advert = err; 1113 1114 err = mii_read(np, np->phy_addr, MII_LPA); 1115 if (unlikely(err < 0)) 1116 return err; 1117 lpa = err; 1118 1119 if (likely(bmsr & BMSR_ESTATEN)) { 1120 err = mii_read(np, np->phy_addr, MII_ESTATUS); 1121 if (unlikely(err < 0)) 1122 return err; 1123 estatus = err; 1124 1125 err = mii_read(np, np->phy_addr, MII_CTRL1000); 1126 if (unlikely(err < 0)) 1127 return err; 1128 ctrl1000 = err; 1129 1130 err = mii_read(np, np->phy_addr, MII_STAT1000); 1131 if (unlikely(err < 0)) 1132 return err; 1133 stat1000 = err; 1134 } else 1135 estatus = ctrl1000 = stat1000 = 0; 1136 1137 supported = 0; 1138 if (bmsr & BMSR_ANEGCAPABLE) 1139 supported |= SUPPORTED_Autoneg; 1140 if (bmsr & BMSR_10HALF) 1141 supported |= SUPPORTED_10baseT_Half; 1142 if (bmsr & BMSR_10FULL) 1143 supported |= SUPPORTED_10baseT_Full; 1144 if (bmsr & BMSR_100HALF) 1145 supported |= SUPPORTED_100baseT_Half; 1146 if (bmsr & BMSR_100FULL) 1147 supported |= SUPPORTED_100baseT_Full; 1148 if (estatus & ESTATUS_1000_THALF) 1149 supported |= SUPPORTED_1000baseT_Half; 1150 if (estatus & ESTATUS_1000_TFULL) 1151 supported |= SUPPORTED_1000baseT_Full; 1152 lp->supported = supported; 1153 1154 advertising = mii_adv_to_ethtool_adv_t(advert); 1155 advertising |= mii_ctrl1000_to_ethtool_adv_t(ctrl1000); 1156 1157 if (bmcr & BMCR_ANENABLE) { 1158 int neg, neg1000; 1159 1160 lp->active_autoneg = 1; 1161 advertising |= ADVERTISED_Autoneg; 1162 1163 neg = advert & lpa; 1164 neg1000 = (ctrl1000 << 2) & stat1000; 1165 1166 if (neg1000 & (LPA_1000FULL | LPA_1000HALF)) 1167 active_speed = SPEED_1000; 1168 else if (neg & LPA_100) 1169 active_speed = SPEED_100; 1170 else if (neg & (LPA_10HALF | LPA_10FULL)) 1171 active_speed = SPEED_10; 1172 else 1173 active_speed = SPEED_INVALID; 1174 1175 if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX)) 1176 active_duplex = DUPLEX_FULL; 1177 else if (active_speed != SPEED_INVALID) 1178 active_duplex = DUPLEX_HALF; 1179 else 1180 active_duplex = DUPLEX_INVALID; 1181 } else { 1182 lp->active_autoneg = 0; 1183 1184 if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100)) 1185 active_speed = SPEED_1000; 1186 else if (bmcr & BMCR_SPEED100) 1187 active_speed = SPEED_100; 1188 else 1189 active_speed = SPEED_10; 1190 1191 if (bmcr & BMCR_FULLDPLX) 1192 active_duplex = DUPLEX_FULL; 1193 else 1194 active_duplex = DUPLEX_HALF; 1195 } 1196 1197 lp->active_advertising = advertising; 1198 lp->active_speed = active_speed; 1199 lp->active_duplex = active_duplex; 1200 *link_up_p = !!(bmsr & BMSR_LSTATUS); 1201 1202 return 0; 1203 } 1204 1205 static int link_status_1g_rgmii(struct niu *np, int *link_up_p) 1206 { 1207 struct niu_link_config *lp = &np->link_config; 1208 u16 current_speed, bmsr; 1209 unsigned long flags; 1210 u8 current_duplex; 1211 int err, link_up; 1212 1213 link_up = 0; 1214 current_speed = SPEED_INVALID; 1215 current_duplex = DUPLEX_INVALID; 1216 1217 spin_lock_irqsave(&np->lock, flags); 1218 1219 err = -EINVAL; 1220 1221 err = mii_read(np, np->phy_addr, MII_BMSR); 1222 if (err < 0) 1223 goto out; 1224 1225 bmsr = err; 1226 if (bmsr & BMSR_LSTATUS) { 1227 u16 adv, lpa; 1228 1229 err = mii_read(np, np->phy_addr, MII_ADVERTISE); 1230 if (err < 0) 1231 goto out; 1232 adv = err; 1233 1234 err = mii_read(np, np->phy_addr, MII_LPA); 1235 if (err < 0) 1236 goto out; 1237 lpa = err; 1238 1239 err = mii_read(np, np->phy_addr, MII_ESTATUS); 1240 if (err < 0) 1241 goto out; 1242 link_up = 1; 1243 current_speed = SPEED_1000; 1244 current_duplex = DUPLEX_FULL; 1245 1246 } 1247 lp->active_speed = current_speed; 1248 lp->active_duplex = current_duplex; 1249 err = 0; 1250 1251 out: 1252 spin_unlock_irqrestore(&np->lock, flags); 1253 1254 *link_up_p = link_up; 1255 return err; 1256 } 1257 1258 static int link_status_1g(struct niu *np, int *link_up_p) 1259 { 1260 struct niu_link_config *lp = &np->link_config; 1261 unsigned long flags; 1262 int err; 1263 1264 spin_lock_irqsave(&np->lock, flags); 1265 1266 err = link_status_mii(np, link_up_p); 1267 lp->supported |= SUPPORTED_TP; 1268 lp->active_advertising |= ADVERTISED_TP; 1269 1270 spin_unlock_irqrestore(&np->lock, flags); 1271 return err; 1272 } 1273 1274 static int bcm8704_reset(struct niu *np) 1275 { 1276 int err, limit; 1277 1278 err = mdio_read(np, np->phy_addr, 1279 BCM8704_PHYXS_DEV_ADDR, MII_BMCR); 1280 if (err < 0 || err == 0xffff) 1281 return err; 1282 err |= BMCR_RESET; 1283 err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, 1284 MII_BMCR, err); 1285 if (err) 1286 return err; 1287 1288 limit = 1000; 1289 while (--limit >= 0) { 1290 err = mdio_read(np, np->phy_addr, 1291 BCM8704_PHYXS_DEV_ADDR, MII_BMCR); 1292 if (err < 0) 1293 return err; 1294 if (!(err & BMCR_RESET)) 1295 break; 1296 } 1297 if (limit < 0) { 1298 netdev_err(np->dev, "Port %u PHY will not reset (bmcr=%04x)\n", 1299 np->port, (err & 0xffff)); 1300 return -ENODEV; 1301 } 1302 return 0; 1303 } 1304 1305 /* When written, certain PHY registers need to be read back twice 1306 * in order for the bits to settle properly. 1307 */ 1308 static int bcm8704_user_dev3_readback(struct niu *np, int reg) 1309 { 1310 int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); 1311 if (err < 0) 1312 return err; 1313 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); 1314 if (err < 0) 1315 return err; 1316 return 0; 1317 } 1318 1319 static int bcm8706_init_user_dev3(struct niu *np) 1320 { 1321 int err; 1322 1323 1324 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1325 BCM8704_USER_OPT_DIGITAL_CTRL); 1326 if (err < 0) 1327 return err; 1328 err &= ~USER_ODIG_CTRL_GPIOS; 1329 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); 1330 err |= USER_ODIG_CTRL_RESV2; 1331 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1332 BCM8704_USER_OPT_DIGITAL_CTRL, err); 1333 if (err) 1334 return err; 1335 1336 mdelay(1000); 1337 1338 return 0; 1339 } 1340 1341 static int bcm8704_init_user_dev3(struct niu *np) 1342 { 1343 int err; 1344 1345 err = mdio_write(np, np->phy_addr, 1346 BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL, 1347 (USER_CONTROL_OPTXRST_LVL | 1348 USER_CONTROL_OPBIASFLT_LVL | 1349 USER_CONTROL_OBTMPFLT_LVL | 1350 USER_CONTROL_OPPRFLT_LVL | 1351 USER_CONTROL_OPTXFLT_LVL | 1352 USER_CONTROL_OPRXLOS_LVL | 1353 USER_CONTROL_OPRXFLT_LVL | 1354 USER_CONTROL_OPTXON_LVL | 1355 (0x3f << USER_CONTROL_RES1_SHIFT))); 1356 if (err) 1357 return err; 1358 1359 err = mdio_write(np, np->phy_addr, 1360 BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL, 1361 (USER_PMD_TX_CTL_XFP_CLKEN | 1362 (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) | 1363 (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) | 1364 USER_PMD_TX_CTL_TSCK_LPWREN)); 1365 if (err) 1366 return err; 1367 1368 err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL); 1369 if (err) 1370 return err; 1371 err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL); 1372 if (err) 1373 return err; 1374 1375 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1376 BCM8704_USER_OPT_DIGITAL_CTRL); 1377 if (err < 0) 1378 return err; 1379 err &= ~USER_ODIG_CTRL_GPIOS; 1380 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); 1381 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1382 BCM8704_USER_OPT_DIGITAL_CTRL, err); 1383 if (err) 1384 return err; 1385 1386 mdelay(1000); 1387 1388 return 0; 1389 } 1390 1391 static int mrvl88x2011_act_led(struct niu *np, int val) 1392 { 1393 int err; 1394 1395 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, 1396 MRVL88X2011_LED_8_TO_11_CTL); 1397 if (err < 0) 1398 return err; 1399 1400 err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK); 1401 err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val); 1402 1403 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, 1404 MRVL88X2011_LED_8_TO_11_CTL, err); 1405 } 1406 1407 static int mrvl88x2011_led_blink_rate(struct niu *np, int rate) 1408 { 1409 int err; 1410 1411 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, 1412 MRVL88X2011_LED_BLINK_CTL); 1413 if (err >= 0) { 1414 err &= ~MRVL88X2011_LED_BLKRATE_MASK; 1415 err |= (rate << 4); 1416 1417 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, 1418 MRVL88X2011_LED_BLINK_CTL, err); 1419 } 1420 1421 return err; 1422 } 1423 1424 static int xcvr_init_10g_mrvl88x2011(struct niu *np) 1425 { 1426 int err; 1427 1428 /* Set LED functions */ 1429 err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS); 1430 if (err) 1431 return err; 1432 1433 /* led activity */ 1434 err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF); 1435 if (err) 1436 return err; 1437 1438 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, 1439 MRVL88X2011_GENERAL_CTL); 1440 if (err < 0) 1441 return err; 1442 1443 err |= MRVL88X2011_ENA_XFPREFCLK; 1444 1445 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, 1446 MRVL88X2011_GENERAL_CTL, err); 1447 if (err < 0) 1448 return err; 1449 1450 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, 1451 MRVL88X2011_PMA_PMD_CTL_1); 1452 if (err < 0) 1453 return err; 1454 1455 if (np->link_config.loopback_mode == LOOPBACK_MAC) 1456 err |= MRVL88X2011_LOOPBACK; 1457 else 1458 err &= ~MRVL88X2011_LOOPBACK; 1459 1460 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, 1461 MRVL88X2011_PMA_PMD_CTL_1, err); 1462 if (err < 0) 1463 return err; 1464 1465 /* Enable PMD */ 1466 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, 1467 MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX); 1468 } 1469 1470 1471 static int xcvr_diag_bcm870x(struct niu *np) 1472 { 1473 u16 analog_stat0, tx_alarm_status; 1474 int err = 0; 1475 1476 #if 1 1477 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, 1478 MII_STAT1000); 1479 if (err < 0) 1480 return err; 1481 pr_info("Port %u PMA_PMD(MII_STAT1000) [%04x]\n", np->port, err); 1482 1483 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20); 1484 if (err < 0) 1485 return err; 1486 pr_info("Port %u USER_DEV3(0x20) [%04x]\n", np->port, err); 1487 1488 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, 1489 MII_NWAYTEST); 1490 if (err < 0) 1491 return err; 1492 pr_info("Port %u PHYXS(MII_NWAYTEST) [%04x]\n", np->port, err); 1493 #endif 1494 1495 /* XXX dig this out it might not be so useful XXX */ 1496 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1497 BCM8704_USER_ANALOG_STATUS0); 1498 if (err < 0) 1499 return err; 1500 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1501 BCM8704_USER_ANALOG_STATUS0); 1502 if (err < 0) 1503 return err; 1504 analog_stat0 = err; 1505 1506 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1507 BCM8704_USER_TX_ALARM_STATUS); 1508 if (err < 0) 1509 return err; 1510 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 1511 BCM8704_USER_TX_ALARM_STATUS); 1512 if (err < 0) 1513 return err; 1514 tx_alarm_status = err; 1515 1516 if (analog_stat0 != 0x03fc) { 1517 if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) { 1518 pr_info("Port %u cable not connected or bad cable\n", 1519 np->port); 1520 } else if (analog_stat0 == 0x639c) { 1521 pr_info("Port %u optical module is bad or missing\n", 1522 np->port); 1523 } 1524 } 1525 1526 return 0; 1527 } 1528 1529 static int xcvr_10g_set_lb_bcm870x(struct niu *np) 1530 { 1531 struct niu_link_config *lp = &np->link_config; 1532 int err; 1533 1534 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, 1535 MII_BMCR); 1536 if (err < 0) 1537 return err; 1538 1539 err &= ~BMCR_LOOPBACK; 1540 1541 if (lp->loopback_mode == LOOPBACK_MAC) 1542 err |= BMCR_LOOPBACK; 1543 1544 err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, 1545 MII_BMCR, err); 1546 if (err) 1547 return err; 1548 1549 return 0; 1550 } 1551 1552 static int xcvr_init_10g_bcm8706(struct niu *np) 1553 { 1554 int err = 0; 1555 u64 val; 1556 1557 if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) && 1558 (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0) 1559 return err; 1560 1561 val = nr64_mac(XMAC_CONFIG); 1562 val &= ~XMAC_CONFIG_LED_POLARITY; 1563 val |= XMAC_CONFIG_FORCE_LED_ON; 1564 nw64_mac(XMAC_CONFIG, val); 1565 1566 val = nr64(MIF_CONFIG); 1567 val |= MIF_CONFIG_INDIRECT_MODE; 1568 nw64(MIF_CONFIG, val); 1569 1570 err = bcm8704_reset(np); 1571 if (err) 1572 return err; 1573 1574 err = xcvr_10g_set_lb_bcm870x(np); 1575 if (err) 1576 return err; 1577 1578 err = bcm8706_init_user_dev3(np); 1579 if (err) 1580 return err; 1581 1582 err = xcvr_diag_bcm870x(np); 1583 if (err) 1584 return err; 1585 1586 return 0; 1587 } 1588 1589 static int xcvr_init_10g_bcm8704(struct niu *np) 1590 { 1591 int err; 1592 1593 err = bcm8704_reset(np); 1594 if (err) 1595 return err; 1596 1597 err = bcm8704_init_user_dev3(np); 1598 if (err) 1599 return err; 1600 1601 err = xcvr_10g_set_lb_bcm870x(np); 1602 if (err) 1603 return err; 1604 1605 err = xcvr_diag_bcm870x(np); 1606 if (err) 1607 return err; 1608 1609 return 0; 1610 } 1611 1612 static int xcvr_init_10g(struct niu *np) 1613 { 1614 int phy_id, err; 1615 u64 val; 1616 1617 val = nr64_mac(XMAC_CONFIG); 1618 val &= ~XMAC_CONFIG_LED_POLARITY; 1619 val |= XMAC_CONFIG_FORCE_LED_ON; 1620 nw64_mac(XMAC_CONFIG, val); 1621 1622 /* XXX shared resource, lock parent XXX */ 1623 val = nr64(MIF_CONFIG); 1624 val |= MIF_CONFIG_INDIRECT_MODE; 1625 nw64(MIF_CONFIG, val); 1626 1627 phy_id = phy_decode(np->parent->port_phy, np->port); 1628 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; 1629 1630 /* handle different phy types */ 1631 switch (phy_id & NIU_PHY_ID_MASK) { 1632 case NIU_PHY_ID_MRVL88X2011: 1633 err = xcvr_init_10g_mrvl88x2011(np); 1634 break; 1635 1636 default: /* bcom 8704 */ 1637 err = xcvr_init_10g_bcm8704(np); 1638 break; 1639 } 1640 1641 return err; 1642 } 1643 1644 static int mii_reset(struct niu *np) 1645 { 1646 int limit, err; 1647 1648 err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET); 1649 if (err) 1650 return err; 1651 1652 limit = 1000; 1653 while (--limit >= 0) { 1654 udelay(500); 1655 err = mii_read(np, np->phy_addr, MII_BMCR); 1656 if (err < 0) 1657 return err; 1658 if (!(err & BMCR_RESET)) 1659 break; 1660 } 1661 if (limit < 0) { 1662 netdev_err(np->dev, "Port %u MII would not reset, bmcr[%04x]\n", 1663 np->port, err); 1664 return -ENODEV; 1665 } 1666 1667 return 0; 1668 } 1669 1670 static int xcvr_init_1g_rgmii(struct niu *np) 1671 { 1672 int err; 1673 u64 val; 1674 u16 bmcr, bmsr, estat; 1675 1676 val = nr64(MIF_CONFIG); 1677 val &= ~MIF_CONFIG_INDIRECT_MODE; 1678 nw64(MIF_CONFIG, val); 1679 1680 err = mii_reset(np); 1681 if (err) 1682 return err; 1683 1684 err = mii_read(np, np->phy_addr, MII_BMSR); 1685 if (err < 0) 1686 return err; 1687 bmsr = err; 1688 1689 estat = 0; 1690 if (bmsr & BMSR_ESTATEN) { 1691 err = mii_read(np, np->phy_addr, MII_ESTATUS); 1692 if (err < 0) 1693 return err; 1694 estat = err; 1695 } 1696 1697 bmcr = 0; 1698 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); 1699 if (err) 1700 return err; 1701 1702 if (bmsr & BMSR_ESTATEN) { 1703 u16 ctrl1000 = 0; 1704 1705 if (estat & ESTATUS_1000_TFULL) 1706 ctrl1000 |= ADVERTISE_1000FULL; 1707 err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); 1708 if (err) 1709 return err; 1710 } 1711 1712 bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX); 1713 1714 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); 1715 if (err) 1716 return err; 1717 1718 err = mii_read(np, np->phy_addr, MII_BMCR); 1719 if (err < 0) 1720 return err; 1721 bmcr = mii_read(np, np->phy_addr, MII_BMCR); 1722 1723 err = mii_read(np, np->phy_addr, MII_BMSR); 1724 if (err < 0) 1725 return err; 1726 1727 return 0; 1728 } 1729 1730 static int mii_init_common(struct niu *np) 1731 { 1732 struct niu_link_config *lp = &np->link_config; 1733 u16 bmcr, bmsr, adv, estat; 1734 int err; 1735 1736 err = mii_reset(np); 1737 if (err) 1738 return err; 1739 1740 err = mii_read(np, np->phy_addr, MII_BMSR); 1741 if (err < 0) 1742 return err; 1743 bmsr = err; 1744 1745 estat = 0; 1746 if (bmsr & BMSR_ESTATEN) { 1747 err = mii_read(np, np->phy_addr, MII_ESTATUS); 1748 if (err < 0) 1749 return err; 1750 estat = err; 1751 } 1752 1753 bmcr = 0; 1754 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); 1755 if (err) 1756 return err; 1757 1758 if (lp->loopback_mode == LOOPBACK_MAC) { 1759 bmcr |= BMCR_LOOPBACK; 1760 if (lp->active_speed == SPEED_1000) 1761 bmcr |= BMCR_SPEED1000; 1762 if (lp->active_duplex == DUPLEX_FULL) 1763 bmcr |= BMCR_FULLDPLX; 1764 } 1765 1766 if (lp->loopback_mode == LOOPBACK_PHY) { 1767 u16 aux; 1768 1769 aux = (BCM5464R_AUX_CTL_EXT_LB | 1770 BCM5464R_AUX_CTL_WRITE_1); 1771 err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux); 1772 if (err) 1773 return err; 1774 } 1775 1776 if (lp->autoneg) { 1777 u16 ctrl1000; 1778 1779 adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP; 1780 if ((bmsr & BMSR_10HALF) && 1781 (lp->advertising & ADVERTISED_10baseT_Half)) 1782 adv |= ADVERTISE_10HALF; 1783 if ((bmsr & BMSR_10FULL) && 1784 (lp->advertising & ADVERTISED_10baseT_Full)) 1785 adv |= ADVERTISE_10FULL; 1786 if ((bmsr & BMSR_100HALF) && 1787 (lp->advertising & ADVERTISED_100baseT_Half)) 1788 adv |= ADVERTISE_100HALF; 1789 if ((bmsr & BMSR_100FULL) && 1790 (lp->advertising & ADVERTISED_100baseT_Full)) 1791 adv |= ADVERTISE_100FULL; 1792 err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv); 1793 if (err) 1794 return err; 1795 1796 if (likely(bmsr & BMSR_ESTATEN)) { 1797 ctrl1000 = 0; 1798 if ((estat & ESTATUS_1000_THALF) && 1799 (lp->advertising & ADVERTISED_1000baseT_Half)) 1800 ctrl1000 |= ADVERTISE_1000HALF; 1801 if ((estat & ESTATUS_1000_TFULL) && 1802 (lp->advertising & ADVERTISED_1000baseT_Full)) 1803 ctrl1000 |= ADVERTISE_1000FULL; 1804 err = mii_write(np, np->phy_addr, 1805 MII_CTRL1000, ctrl1000); 1806 if (err) 1807 return err; 1808 } 1809 1810 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); 1811 } else { 1812 /* !lp->autoneg */ 1813 int fulldpx; 1814 1815 if (lp->duplex == DUPLEX_FULL) { 1816 bmcr |= BMCR_FULLDPLX; 1817 fulldpx = 1; 1818 } else if (lp->duplex == DUPLEX_HALF) 1819 fulldpx = 0; 1820 else 1821 return -EINVAL; 1822 1823 if (lp->speed == SPEED_1000) { 1824 /* if X-full requested while not supported, or 1825 X-half requested while not supported... */ 1826 if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) || 1827 (!fulldpx && !(estat & ESTATUS_1000_THALF))) 1828 return -EINVAL; 1829 bmcr |= BMCR_SPEED1000; 1830 } else if (lp->speed == SPEED_100) { 1831 if ((fulldpx && !(bmsr & BMSR_100FULL)) || 1832 (!fulldpx && !(bmsr & BMSR_100HALF))) 1833 return -EINVAL; 1834 bmcr |= BMCR_SPEED100; 1835 } else if (lp->speed == SPEED_10) { 1836 if ((fulldpx && !(bmsr & BMSR_10FULL)) || 1837 (!fulldpx && !(bmsr & BMSR_10HALF))) 1838 return -EINVAL; 1839 } else 1840 return -EINVAL; 1841 } 1842 1843 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); 1844 if (err) 1845 return err; 1846 1847 #if 0 1848 err = mii_read(np, np->phy_addr, MII_BMCR); 1849 if (err < 0) 1850 return err; 1851 bmcr = err; 1852 1853 err = mii_read(np, np->phy_addr, MII_BMSR); 1854 if (err < 0) 1855 return err; 1856 bmsr = err; 1857 1858 pr_info("Port %u after MII init bmcr[%04x] bmsr[%04x]\n", 1859 np->port, bmcr, bmsr); 1860 #endif 1861 1862 return 0; 1863 } 1864 1865 static int xcvr_init_1g(struct niu *np) 1866 { 1867 u64 val; 1868 1869 /* XXX shared resource, lock parent XXX */ 1870 val = nr64(MIF_CONFIG); 1871 val &= ~MIF_CONFIG_INDIRECT_MODE; 1872 nw64(MIF_CONFIG, val); 1873 1874 return mii_init_common(np); 1875 } 1876 1877 static int niu_xcvr_init(struct niu *np) 1878 { 1879 const struct niu_phy_ops *ops = np->phy_ops; 1880 int err; 1881 1882 err = 0; 1883 if (ops->xcvr_init) 1884 err = ops->xcvr_init(np); 1885 1886 return err; 1887 } 1888 1889 static int niu_serdes_init(struct niu *np) 1890 { 1891 const struct niu_phy_ops *ops = np->phy_ops; 1892 int err; 1893 1894 err = 0; 1895 if (ops->serdes_init) 1896 err = ops->serdes_init(np); 1897 1898 return err; 1899 } 1900 1901 static void niu_init_xif(struct niu *); 1902 static void niu_handle_led(struct niu *, int status); 1903 1904 static int niu_link_status_common(struct niu *np, int link_up) 1905 { 1906 struct niu_link_config *lp = &np->link_config; 1907 struct net_device *dev = np->dev; 1908 unsigned long flags; 1909 1910 if (!netif_carrier_ok(dev) && link_up) { 1911 netif_info(np, link, dev, "Link is up at %s, %s duplex\n", 1912 lp->active_speed == SPEED_10000 ? "10Gb/sec" : 1913 lp->active_speed == SPEED_1000 ? "1Gb/sec" : 1914 lp->active_speed == SPEED_100 ? "100Mbit/sec" : 1915 "10Mbit/sec", 1916 lp->active_duplex == DUPLEX_FULL ? "full" : "half"); 1917 1918 spin_lock_irqsave(&np->lock, flags); 1919 niu_init_xif(np); 1920 niu_handle_led(np, 1); 1921 spin_unlock_irqrestore(&np->lock, flags); 1922 1923 netif_carrier_on(dev); 1924 } else if (netif_carrier_ok(dev) && !link_up) { 1925 netif_warn(np, link, dev, "Link is down\n"); 1926 spin_lock_irqsave(&np->lock, flags); 1927 niu_handle_led(np, 0); 1928 spin_unlock_irqrestore(&np->lock, flags); 1929 netif_carrier_off(dev); 1930 } 1931 1932 return 0; 1933 } 1934 1935 static int link_status_10g_mrvl(struct niu *np, int *link_up_p) 1936 { 1937 int err, link_up, pma_status, pcs_status; 1938 1939 link_up = 0; 1940 1941 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, 1942 MRVL88X2011_10G_PMD_STATUS_2); 1943 if (err < 0) 1944 goto out; 1945 1946 /* Check PMA/PMD Register: 1.0001.2 == 1 */ 1947 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, 1948 MRVL88X2011_PMA_PMD_STATUS_1); 1949 if (err < 0) 1950 goto out; 1951 1952 pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); 1953 1954 /* Check PMC Register : 3.0001.2 == 1: read twice */ 1955 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, 1956 MRVL88X2011_PMA_PMD_STATUS_1); 1957 if (err < 0) 1958 goto out; 1959 1960 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, 1961 MRVL88X2011_PMA_PMD_STATUS_1); 1962 if (err < 0) 1963 goto out; 1964 1965 pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); 1966 1967 /* Check XGXS Register : 4.0018.[0-3,12] */ 1968 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR, 1969 MRVL88X2011_10G_XGXS_LANE_STAT); 1970 if (err < 0) 1971 goto out; 1972 1973 if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 | 1974 PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 | 1975 PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC | 1976 0x800)) 1977 link_up = (pma_status && pcs_status) ? 1 : 0; 1978 1979 np->link_config.active_speed = SPEED_10000; 1980 np->link_config.active_duplex = DUPLEX_FULL; 1981 err = 0; 1982 out: 1983 mrvl88x2011_act_led(np, (link_up ? 1984 MRVL88X2011_LED_CTL_PCS_ACT : 1985 MRVL88X2011_LED_CTL_OFF)); 1986 1987 *link_up_p = link_up; 1988 return err; 1989 } 1990 1991 static int link_status_10g_bcm8706(struct niu *np, int *link_up_p) 1992 { 1993 int err, link_up; 1994 link_up = 0; 1995 1996 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, 1997 BCM8704_PMD_RCV_SIGDET); 1998 if (err < 0 || err == 0xffff) 1999 goto out; 2000 if (!(err & PMD_RCV_SIGDET_GLOBAL)) { 2001 err = 0; 2002 goto out; 2003 } 2004 2005 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, 2006 BCM8704_PCS_10G_R_STATUS); 2007 if (err < 0) 2008 goto out; 2009 2010 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { 2011 err = 0; 2012 goto out; 2013 } 2014 2015 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, 2016 BCM8704_PHYXS_XGXS_LANE_STAT); 2017 if (err < 0) 2018 goto out; 2019 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | 2020 PHYXS_XGXS_LANE_STAT_MAGIC | 2021 PHYXS_XGXS_LANE_STAT_PATTEST | 2022 PHYXS_XGXS_LANE_STAT_LANE3 | 2023 PHYXS_XGXS_LANE_STAT_LANE2 | 2024 PHYXS_XGXS_LANE_STAT_LANE1 | 2025 PHYXS_XGXS_LANE_STAT_LANE0)) { 2026 err = 0; 2027 np->link_config.active_speed = SPEED_INVALID; 2028 np->link_config.active_duplex = DUPLEX_INVALID; 2029 goto out; 2030 } 2031 2032 link_up = 1; 2033 np->link_config.active_speed = SPEED_10000; 2034 np->link_config.active_duplex = DUPLEX_FULL; 2035 err = 0; 2036 2037 out: 2038 *link_up_p = link_up; 2039 return err; 2040 } 2041 2042 static int link_status_10g_bcom(struct niu *np, int *link_up_p) 2043 { 2044 int err, link_up; 2045 2046 link_up = 0; 2047 2048 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, 2049 BCM8704_PMD_RCV_SIGDET); 2050 if (err < 0) 2051 goto out; 2052 if (!(err & PMD_RCV_SIGDET_GLOBAL)) { 2053 err = 0; 2054 goto out; 2055 } 2056 2057 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, 2058 BCM8704_PCS_10G_R_STATUS); 2059 if (err < 0) 2060 goto out; 2061 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { 2062 err = 0; 2063 goto out; 2064 } 2065 2066 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, 2067 BCM8704_PHYXS_XGXS_LANE_STAT); 2068 if (err < 0) 2069 goto out; 2070 2071 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | 2072 PHYXS_XGXS_LANE_STAT_MAGIC | 2073 PHYXS_XGXS_LANE_STAT_LANE3 | 2074 PHYXS_XGXS_LANE_STAT_LANE2 | 2075 PHYXS_XGXS_LANE_STAT_LANE1 | 2076 PHYXS_XGXS_LANE_STAT_LANE0)) { 2077 err = 0; 2078 goto out; 2079 } 2080 2081 link_up = 1; 2082 np->link_config.active_speed = SPEED_10000; 2083 np->link_config.active_duplex = DUPLEX_FULL; 2084 err = 0; 2085 2086 out: 2087 *link_up_p = link_up; 2088 return err; 2089 } 2090 2091 static int link_status_10g(struct niu *np, int *link_up_p) 2092 { 2093 unsigned long flags; 2094 int err = -EINVAL; 2095 2096 spin_lock_irqsave(&np->lock, flags); 2097 2098 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { 2099 int phy_id; 2100 2101 phy_id = phy_decode(np->parent->port_phy, np->port); 2102 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; 2103 2104 /* handle different phy types */ 2105 switch (phy_id & NIU_PHY_ID_MASK) { 2106 case NIU_PHY_ID_MRVL88X2011: 2107 err = link_status_10g_mrvl(np, link_up_p); 2108 break; 2109 2110 default: /* bcom 8704 */ 2111 err = link_status_10g_bcom(np, link_up_p); 2112 break; 2113 } 2114 } 2115 2116 spin_unlock_irqrestore(&np->lock, flags); 2117 2118 return err; 2119 } 2120 2121 static int niu_10g_phy_present(struct niu *np) 2122 { 2123 u64 sig, mask, val; 2124 2125 sig = nr64(ESR_INT_SIGNALS); 2126 switch (np->port) { 2127 case 0: 2128 mask = ESR_INT_SIGNALS_P0_BITS; 2129 val = (ESR_INT_SRDY0_P0 | 2130 ESR_INT_DET0_P0 | 2131 ESR_INT_XSRDY_P0 | 2132 ESR_INT_XDP_P0_CH3 | 2133 ESR_INT_XDP_P0_CH2 | 2134 ESR_INT_XDP_P0_CH1 | 2135 ESR_INT_XDP_P0_CH0); 2136 break; 2137 2138 case 1: 2139 mask = ESR_INT_SIGNALS_P1_BITS; 2140 val = (ESR_INT_SRDY0_P1 | 2141 ESR_INT_DET0_P1 | 2142 ESR_INT_XSRDY_P1 | 2143 ESR_INT_XDP_P1_CH3 | 2144 ESR_INT_XDP_P1_CH2 | 2145 ESR_INT_XDP_P1_CH1 | 2146 ESR_INT_XDP_P1_CH0); 2147 break; 2148 2149 default: 2150 return 0; 2151 } 2152 2153 if ((sig & mask) != val) 2154 return 0; 2155 return 1; 2156 } 2157 2158 static int link_status_10g_hotplug(struct niu *np, int *link_up_p) 2159 { 2160 unsigned long flags; 2161 int err = 0; 2162 int phy_present; 2163 int phy_present_prev; 2164 2165 spin_lock_irqsave(&np->lock, flags); 2166 2167 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { 2168 phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ? 2169 1 : 0; 2170 phy_present = niu_10g_phy_present(np); 2171 if (phy_present != phy_present_prev) { 2172 /* state change */ 2173 if (phy_present) { 2174 /* A NEM was just plugged in */ 2175 np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; 2176 if (np->phy_ops->xcvr_init) 2177 err = np->phy_ops->xcvr_init(np); 2178 if (err) { 2179 err = mdio_read(np, np->phy_addr, 2180 BCM8704_PHYXS_DEV_ADDR, MII_BMCR); 2181 if (err == 0xffff) { 2182 /* No mdio, back-to-back XAUI */ 2183 goto out; 2184 } 2185 /* debounce */ 2186 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; 2187 } 2188 } else { 2189 np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; 2190 *link_up_p = 0; 2191 netif_warn(np, link, np->dev, 2192 "Hotplug PHY Removed\n"); 2193 } 2194 } 2195 out: 2196 if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) { 2197 err = link_status_10g_bcm8706(np, link_up_p); 2198 if (err == 0xffff) { 2199 /* No mdio, back-to-back XAUI: it is C10NEM */ 2200 *link_up_p = 1; 2201 np->link_config.active_speed = SPEED_10000; 2202 np->link_config.active_duplex = DUPLEX_FULL; 2203 } 2204 } 2205 } 2206 2207 spin_unlock_irqrestore(&np->lock, flags); 2208 2209 return 0; 2210 } 2211 2212 static int niu_link_status(struct niu *np, int *link_up_p) 2213 { 2214 const struct niu_phy_ops *ops = np->phy_ops; 2215 int err; 2216 2217 err = 0; 2218 if (ops->link_status) 2219 err = ops->link_status(np, link_up_p); 2220 2221 return err; 2222 } 2223 2224 static void niu_timer(unsigned long __opaque) 2225 { 2226 struct niu *np = (struct niu *) __opaque; 2227 unsigned long off; 2228 int err, link_up; 2229 2230 err = niu_link_status(np, &link_up); 2231 if (!err) 2232 niu_link_status_common(np, link_up); 2233 2234 if (netif_carrier_ok(np->dev)) 2235 off = 5 * HZ; 2236 else 2237 off = 1 * HZ; 2238 np->timer.expires = jiffies + off; 2239 2240 add_timer(&np->timer); 2241 } 2242 2243 static const struct niu_phy_ops phy_ops_10g_serdes = { 2244 .serdes_init = serdes_init_10g_serdes, 2245 .link_status = link_status_10g_serdes, 2246 }; 2247 2248 static const struct niu_phy_ops phy_ops_10g_serdes_niu = { 2249 .serdes_init = serdes_init_niu_10g_serdes, 2250 .link_status = link_status_10g_serdes, 2251 }; 2252 2253 static const struct niu_phy_ops phy_ops_1g_serdes_niu = { 2254 .serdes_init = serdes_init_niu_1g_serdes, 2255 .link_status = link_status_1g_serdes, 2256 }; 2257 2258 static const struct niu_phy_ops phy_ops_1g_rgmii = { 2259 .xcvr_init = xcvr_init_1g_rgmii, 2260 .link_status = link_status_1g_rgmii, 2261 }; 2262 2263 static const struct niu_phy_ops phy_ops_10g_fiber_niu = { 2264 .serdes_init = serdes_init_niu_10g_fiber, 2265 .xcvr_init = xcvr_init_10g, 2266 .link_status = link_status_10g, 2267 }; 2268 2269 static const struct niu_phy_ops phy_ops_10g_fiber = { 2270 .serdes_init = serdes_init_10g, 2271 .xcvr_init = xcvr_init_10g, 2272 .link_status = link_status_10g, 2273 }; 2274 2275 static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = { 2276 .serdes_init = serdes_init_10g, 2277 .xcvr_init = xcvr_init_10g_bcm8706, 2278 .link_status = link_status_10g_hotplug, 2279 }; 2280 2281 static const struct niu_phy_ops phy_ops_niu_10g_hotplug = { 2282 .serdes_init = serdes_init_niu_10g_fiber, 2283 .xcvr_init = xcvr_init_10g_bcm8706, 2284 .link_status = link_status_10g_hotplug, 2285 }; 2286 2287 static const struct niu_phy_ops phy_ops_10g_copper = { 2288 .serdes_init = serdes_init_10g, 2289 .link_status = link_status_10g, /* XXX */ 2290 }; 2291 2292 static const struct niu_phy_ops phy_ops_1g_fiber = { 2293 .serdes_init = serdes_init_1g, 2294 .xcvr_init = xcvr_init_1g, 2295 .link_status = link_status_1g, 2296 }; 2297 2298 static const struct niu_phy_ops phy_ops_1g_copper = { 2299 .xcvr_init = xcvr_init_1g, 2300 .link_status = link_status_1g, 2301 }; 2302 2303 struct niu_phy_template { 2304 const struct niu_phy_ops *ops; 2305 u32 phy_addr_base; 2306 }; 2307 2308 static const struct niu_phy_template phy_template_niu_10g_fiber = { 2309 .ops = &phy_ops_10g_fiber_niu, 2310 .phy_addr_base = 16, 2311 }; 2312 2313 static const struct niu_phy_template phy_template_niu_10g_serdes = { 2314 .ops = &phy_ops_10g_serdes_niu, 2315 .phy_addr_base = 0, 2316 }; 2317 2318 static const struct niu_phy_template phy_template_niu_1g_serdes = { 2319 .ops = &phy_ops_1g_serdes_niu, 2320 .phy_addr_base = 0, 2321 }; 2322 2323 static const struct niu_phy_template phy_template_10g_fiber = { 2324 .ops = &phy_ops_10g_fiber, 2325 .phy_addr_base = 8, 2326 }; 2327 2328 static const struct niu_phy_template phy_template_10g_fiber_hotplug = { 2329 .ops = &phy_ops_10g_fiber_hotplug, 2330 .phy_addr_base = 8, 2331 }; 2332 2333 static const struct niu_phy_template phy_template_niu_10g_hotplug = { 2334 .ops = &phy_ops_niu_10g_hotplug, 2335 .phy_addr_base = 8, 2336 }; 2337 2338 static const struct niu_phy_template phy_template_10g_copper = { 2339 .ops = &phy_ops_10g_copper, 2340 .phy_addr_base = 10, 2341 }; 2342 2343 static const struct niu_phy_template phy_template_1g_fiber = { 2344 .ops = &phy_ops_1g_fiber, 2345 .phy_addr_base = 0, 2346 }; 2347 2348 static const struct niu_phy_template phy_template_1g_copper = { 2349 .ops = &phy_ops_1g_copper, 2350 .phy_addr_base = 0, 2351 }; 2352 2353 static const struct niu_phy_template phy_template_1g_rgmii = { 2354 .ops = &phy_ops_1g_rgmii, 2355 .phy_addr_base = 0, 2356 }; 2357 2358 static const struct niu_phy_template phy_template_10g_serdes = { 2359 .ops = &phy_ops_10g_serdes, 2360 .phy_addr_base = 0, 2361 }; 2362 2363 static int niu_atca_port_num[4] = { 2364 0, 0, 11, 10 2365 }; 2366 2367 static int serdes_init_10g_serdes(struct niu *np) 2368 { 2369 struct niu_link_config *lp = &np->link_config; 2370 unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; 2371 u64 ctrl_val, test_cfg_val, sig, mask, val; 2372 2373 switch (np->port) { 2374 case 0: 2375 ctrl_reg = ENET_SERDES_0_CTRL_CFG; 2376 test_cfg_reg = ENET_SERDES_0_TEST_CFG; 2377 pll_cfg = ENET_SERDES_0_PLL_CFG; 2378 break; 2379 case 1: 2380 ctrl_reg = ENET_SERDES_1_CTRL_CFG; 2381 test_cfg_reg = ENET_SERDES_1_TEST_CFG; 2382 pll_cfg = ENET_SERDES_1_PLL_CFG; 2383 break; 2384 2385 default: 2386 return -EINVAL; 2387 } 2388 ctrl_val = (ENET_SERDES_CTRL_SDET_0 | 2389 ENET_SERDES_CTRL_SDET_1 | 2390 ENET_SERDES_CTRL_SDET_2 | 2391 ENET_SERDES_CTRL_SDET_3 | 2392 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | 2393 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | 2394 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | 2395 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | 2396 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | 2397 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | 2398 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | 2399 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); 2400 test_cfg_val = 0; 2401 2402 if (lp->loopback_mode == LOOPBACK_PHY) { 2403 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << 2404 ENET_SERDES_TEST_MD_0_SHIFT) | 2405 (ENET_TEST_MD_PAD_LOOPBACK << 2406 ENET_SERDES_TEST_MD_1_SHIFT) | 2407 (ENET_TEST_MD_PAD_LOOPBACK << 2408 ENET_SERDES_TEST_MD_2_SHIFT) | 2409 (ENET_TEST_MD_PAD_LOOPBACK << 2410 ENET_SERDES_TEST_MD_3_SHIFT)); 2411 } 2412 2413 esr_reset(np); 2414 nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2); 2415 nw64(ctrl_reg, ctrl_val); 2416 nw64(test_cfg_reg, test_cfg_val); 2417 2418 /* Initialize all 4 lanes of the SERDES. */ 2419 for (i = 0; i < 4; i++) { 2420 u32 rxtx_ctrl, glue0; 2421 int err; 2422 2423 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); 2424 if (err) 2425 return err; 2426 err = esr_read_glue0(np, i, &glue0); 2427 if (err) 2428 return err; 2429 2430 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); 2431 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | 2432 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); 2433 2434 glue0 &= ~(ESR_GLUE_CTRL0_SRATE | 2435 ESR_GLUE_CTRL0_THCNT | 2436 ESR_GLUE_CTRL0_BLTIME); 2437 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | 2438 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | 2439 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | 2440 (BLTIME_300_CYCLES << 2441 ESR_GLUE_CTRL0_BLTIME_SHIFT)); 2442 2443 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); 2444 if (err) 2445 return err; 2446 err = esr_write_glue0(np, i, glue0); 2447 if (err) 2448 return err; 2449 } 2450 2451 2452 sig = nr64(ESR_INT_SIGNALS); 2453 switch (np->port) { 2454 case 0: 2455 mask = ESR_INT_SIGNALS_P0_BITS; 2456 val = (ESR_INT_SRDY0_P0 | 2457 ESR_INT_DET0_P0 | 2458 ESR_INT_XSRDY_P0 | 2459 ESR_INT_XDP_P0_CH3 | 2460 ESR_INT_XDP_P0_CH2 | 2461 ESR_INT_XDP_P0_CH1 | 2462 ESR_INT_XDP_P0_CH0); 2463 break; 2464 2465 case 1: 2466 mask = ESR_INT_SIGNALS_P1_BITS; 2467 val = (ESR_INT_SRDY0_P1 | 2468 ESR_INT_DET0_P1 | 2469 ESR_INT_XSRDY_P1 | 2470 ESR_INT_XDP_P1_CH3 | 2471 ESR_INT_XDP_P1_CH2 | 2472 ESR_INT_XDP_P1_CH1 | 2473 ESR_INT_XDP_P1_CH0); 2474 break; 2475 2476 default: 2477 return -EINVAL; 2478 } 2479 2480 if ((sig & mask) != val) { 2481 int err; 2482 err = serdes_init_1g_serdes(np); 2483 if (!err) { 2484 np->flags &= ~NIU_FLAGS_10G; 2485 np->mac_xcvr = MAC_XCVR_PCS; 2486 } else { 2487 netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", 2488 np->port); 2489 return -ENODEV; 2490 } 2491 } 2492 2493 return 0; 2494 } 2495 2496 static int niu_determine_phy_disposition(struct niu *np) 2497 { 2498 struct niu_parent *parent = np->parent; 2499 u8 plat_type = parent->plat_type; 2500 const struct niu_phy_template *tp; 2501 u32 phy_addr_off = 0; 2502 2503 if (plat_type == PLAT_TYPE_NIU) { 2504 switch (np->flags & 2505 (NIU_FLAGS_10G | 2506 NIU_FLAGS_FIBER | 2507 NIU_FLAGS_XCVR_SERDES)) { 2508 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: 2509 /* 10G Serdes */ 2510 tp = &phy_template_niu_10g_serdes; 2511 break; 2512 case NIU_FLAGS_XCVR_SERDES: 2513 /* 1G Serdes */ 2514 tp = &phy_template_niu_1g_serdes; 2515 break; 2516 case NIU_FLAGS_10G | NIU_FLAGS_FIBER: 2517 /* 10G Fiber */ 2518 default: 2519 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { 2520 tp = &phy_template_niu_10g_hotplug; 2521 if (np->port == 0) 2522 phy_addr_off = 8; 2523 if (np->port == 1) 2524 phy_addr_off = 12; 2525 } else { 2526 tp = &phy_template_niu_10g_fiber; 2527 phy_addr_off += np->port; 2528 } 2529 break; 2530 } 2531 } else { 2532 switch (np->flags & 2533 (NIU_FLAGS_10G | 2534 NIU_FLAGS_FIBER | 2535 NIU_FLAGS_XCVR_SERDES)) { 2536 case 0: 2537 /* 1G copper */ 2538 tp = &phy_template_1g_copper; 2539 if (plat_type == PLAT_TYPE_VF_P0) 2540 phy_addr_off = 10; 2541 else if (plat_type == PLAT_TYPE_VF_P1) 2542 phy_addr_off = 26; 2543 2544 phy_addr_off += (np->port ^ 0x3); 2545 break; 2546 2547 case NIU_FLAGS_10G: 2548 /* 10G copper */ 2549 tp = &phy_template_10g_copper; 2550 break; 2551 2552 case NIU_FLAGS_FIBER: 2553 /* 1G fiber */ 2554 tp = &phy_template_1g_fiber; 2555 break; 2556 2557 case NIU_FLAGS_10G | NIU_FLAGS_FIBER: 2558 /* 10G fiber */ 2559 tp = &phy_template_10g_fiber; 2560 if (plat_type == PLAT_TYPE_VF_P0 || 2561 plat_type == PLAT_TYPE_VF_P1) 2562 phy_addr_off = 8; 2563 phy_addr_off += np->port; 2564 if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { 2565 tp = &phy_template_10g_fiber_hotplug; 2566 if (np->port == 0) 2567 phy_addr_off = 8; 2568 if (np->port == 1) 2569 phy_addr_off = 12; 2570 } 2571 break; 2572 2573 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: 2574 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: 2575 case NIU_FLAGS_XCVR_SERDES: 2576 switch(np->port) { 2577 case 0: 2578 case 1: 2579 tp = &phy_template_10g_serdes; 2580 break; 2581 case 2: 2582 case 3: 2583 tp = &phy_template_1g_rgmii; 2584 break; 2585 default: 2586 return -EINVAL; 2587 } 2588 phy_addr_off = niu_atca_port_num[np->port]; 2589 break; 2590 2591 default: 2592 return -EINVAL; 2593 } 2594 } 2595 2596 np->phy_ops = tp->ops; 2597 np->phy_addr = tp->phy_addr_base + phy_addr_off; 2598 2599 return 0; 2600 } 2601 2602 static int niu_init_link(struct niu *np) 2603 { 2604 struct niu_parent *parent = np->parent; 2605 int err, ignore; 2606 2607 if (parent->plat_type == PLAT_TYPE_NIU) { 2608 err = niu_xcvr_init(np); 2609 if (err) 2610 return err; 2611 msleep(200); 2612 } 2613 err = niu_serdes_init(np); 2614 if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY)) 2615 return err; 2616 msleep(200); 2617 err = niu_xcvr_init(np); 2618 if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY)) 2619 niu_link_status(np, &ignore); 2620 return 0; 2621 } 2622 2623 static void niu_set_primary_mac(struct niu *np, unsigned char *addr) 2624 { 2625 u16 reg0 = addr[4] << 8 | addr[5]; 2626 u16 reg1 = addr[2] << 8 | addr[3]; 2627 u16 reg2 = addr[0] << 8 | addr[1]; 2628 2629 if (np->flags & NIU_FLAGS_XMAC) { 2630 nw64_mac(XMAC_ADDR0, reg0); 2631 nw64_mac(XMAC_ADDR1, reg1); 2632 nw64_mac(XMAC_ADDR2, reg2); 2633 } else { 2634 nw64_mac(BMAC_ADDR0, reg0); 2635 nw64_mac(BMAC_ADDR1, reg1); 2636 nw64_mac(BMAC_ADDR2, reg2); 2637 } 2638 } 2639 2640 static int niu_num_alt_addr(struct niu *np) 2641 { 2642 if (np->flags & NIU_FLAGS_XMAC) 2643 return XMAC_NUM_ALT_ADDR; 2644 else 2645 return BMAC_NUM_ALT_ADDR; 2646 } 2647 2648 static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr) 2649 { 2650 u16 reg0 = addr[4] << 8 | addr[5]; 2651 u16 reg1 = addr[2] << 8 | addr[3]; 2652 u16 reg2 = addr[0] << 8 | addr[1]; 2653 2654 if (index >= niu_num_alt_addr(np)) 2655 return -EINVAL; 2656 2657 if (np->flags & NIU_FLAGS_XMAC) { 2658 nw64_mac(XMAC_ALT_ADDR0(index), reg0); 2659 nw64_mac(XMAC_ALT_ADDR1(index), reg1); 2660 nw64_mac(XMAC_ALT_ADDR2(index), reg2); 2661 } else { 2662 nw64_mac(BMAC_ALT_ADDR0(index), reg0); 2663 nw64_mac(BMAC_ALT_ADDR1(index), reg1); 2664 nw64_mac(BMAC_ALT_ADDR2(index), reg2); 2665 } 2666 2667 return 0; 2668 } 2669 2670 static int niu_enable_alt_mac(struct niu *np, int index, int on) 2671 { 2672 unsigned long reg; 2673 u64 val, mask; 2674 2675 if (index >= niu_num_alt_addr(np)) 2676 return -EINVAL; 2677 2678 if (np->flags & NIU_FLAGS_XMAC) { 2679 reg = XMAC_ADDR_CMPEN; 2680 mask = 1 << index; 2681 } else { 2682 reg = BMAC_ADDR_CMPEN; 2683 mask = 1 << (index + 1); 2684 } 2685 2686 val = nr64_mac(reg); 2687 if (on) 2688 val |= mask; 2689 else 2690 val &= ~mask; 2691 nw64_mac(reg, val); 2692 2693 return 0; 2694 } 2695 2696 static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg, 2697 int num, int mac_pref) 2698 { 2699 u64 val = nr64_mac(reg); 2700 val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR); 2701 val |= num; 2702 if (mac_pref) 2703 val |= HOST_INFO_MPR; 2704 nw64_mac(reg, val); 2705 } 2706 2707 static int __set_rdc_table_num(struct niu *np, 2708 int xmac_index, int bmac_index, 2709 int rdc_table_num, int mac_pref) 2710 { 2711 unsigned long reg; 2712 2713 if (rdc_table_num & ~HOST_INFO_MACRDCTBLN) 2714 return -EINVAL; 2715 if (np->flags & NIU_FLAGS_XMAC) 2716 reg = XMAC_HOST_INFO(xmac_index); 2717 else 2718 reg = BMAC_HOST_INFO(bmac_index); 2719 __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref); 2720 return 0; 2721 } 2722 2723 static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num, 2724 int mac_pref) 2725 { 2726 return __set_rdc_table_num(np, 17, 0, table_num, mac_pref); 2727 } 2728 2729 static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num, 2730 int mac_pref) 2731 { 2732 return __set_rdc_table_num(np, 16, 8, table_num, mac_pref); 2733 } 2734 2735 static int niu_set_alt_mac_rdc_table(struct niu *np, int idx, 2736 int table_num, int mac_pref) 2737 { 2738 if (idx >= niu_num_alt_addr(np)) 2739 return -EINVAL; 2740 return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref); 2741 } 2742 2743 static u64 vlan_entry_set_parity(u64 reg_val) 2744 { 2745 u64 port01_mask; 2746 u64 port23_mask; 2747 2748 port01_mask = 0x00ff; 2749 port23_mask = 0xff00; 2750 2751 if (hweight64(reg_val & port01_mask) & 1) 2752 reg_val |= ENET_VLAN_TBL_PARITY0; 2753 else 2754 reg_val &= ~ENET_VLAN_TBL_PARITY0; 2755 2756 if (hweight64(reg_val & port23_mask) & 1) 2757 reg_val |= ENET_VLAN_TBL_PARITY1; 2758 else 2759 reg_val &= ~ENET_VLAN_TBL_PARITY1; 2760 2761 return reg_val; 2762 } 2763 2764 static void vlan_tbl_write(struct niu *np, unsigned long index, 2765 int port, int vpr, int rdc_table) 2766 { 2767 u64 reg_val = nr64(ENET_VLAN_TBL(index)); 2768 2769 reg_val &= ~((ENET_VLAN_TBL_VPR | 2770 ENET_VLAN_TBL_VLANRDCTBLN) << 2771 ENET_VLAN_TBL_SHIFT(port)); 2772 if (vpr) 2773 reg_val |= (ENET_VLAN_TBL_VPR << 2774 ENET_VLAN_TBL_SHIFT(port)); 2775 reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port)); 2776 2777 reg_val = vlan_entry_set_parity(reg_val); 2778 2779 nw64(ENET_VLAN_TBL(index), reg_val); 2780 } 2781 2782 static void vlan_tbl_clear(struct niu *np) 2783 { 2784 int i; 2785 2786 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) 2787 nw64(ENET_VLAN_TBL(i), 0); 2788 } 2789 2790 static int tcam_wait_bit(struct niu *np, u64 bit) 2791 { 2792 int limit = 1000; 2793 2794 while (--limit > 0) { 2795 if (nr64(TCAM_CTL) & bit) 2796 break; 2797 udelay(1); 2798 } 2799 if (limit <= 0) 2800 return -ENODEV; 2801 2802 return 0; 2803 } 2804 2805 static int tcam_flush(struct niu *np, int index) 2806 { 2807 nw64(TCAM_KEY_0, 0x00); 2808 nw64(TCAM_KEY_MASK_0, 0xff); 2809 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); 2810 2811 return tcam_wait_bit(np, TCAM_CTL_STAT); 2812 } 2813 2814 #if 0 2815 static int tcam_read(struct niu *np, int index, 2816 u64 *key, u64 *mask) 2817 { 2818 int err; 2819 2820 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index)); 2821 err = tcam_wait_bit(np, TCAM_CTL_STAT); 2822 if (!err) { 2823 key[0] = nr64(TCAM_KEY_0); 2824 key[1] = nr64(TCAM_KEY_1); 2825 key[2] = nr64(TCAM_KEY_2); 2826 key[3] = nr64(TCAM_KEY_3); 2827 mask[0] = nr64(TCAM_KEY_MASK_0); 2828 mask[1] = nr64(TCAM_KEY_MASK_1); 2829 mask[2] = nr64(TCAM_KEY_MASK_2); 2830 mask[3] = nr64(TCAM_KEY_MASK_3); 2831 } 2832 return err; 2833 } 2834 #endif 2835 2836 static int tcam_write(struct niu *np, int index, 2837 u64 *key, u64 *mask) 2838 { 2839 nw64(TCAM_KEY_0, key[0]); 2840 nw64(TCAM_KEY_1, key[1]); 2841 nw64(TCAM_KEY_2, key[2]); 2842 nw64(TCAM_KEY_3, key[3]); 2843 nw64(TCAM_KEY_MASK_0, mask[0]); 2844 nw64(TCAM_KEY_MASK_1, mask[1]); 2845 nw64(TCAM_KEY_MASK_2, mask[2]); 2846 nw64(TCAM_KEY_MASK_3, mask[3]); 2847 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); 2848 2849 return tcam_wait_bit(np, TCAM_CTL_STAT); 2850 } 2851 2852 #if 0 2853 static int tcam_assoc_read(struct niu *np, int index, u64 *data) 2854 { 2855 int err; 2856 2857 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index)); 2858 err = tcam_wait_bit(np, TCAM_CTL_STAT); 2859 if (!err) 2860 *data = nr64(TCAM_KEY_1); 2861 2862 return err; 2863 } 2864 #endif 2865 2866 static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data) 2867 { 2868 nw64(TCAM_KEY_1, assoc_data); 2869 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index)); 2870 2871 return tcam_wait_bit(np, TCAM_CTL_STAT); 2872 } 2873 2874 static void tcam_enable(struct niu *np, int on) 2875 { 2876 u64 val = nr64(FFLP_CFG_1); 2877 2878 if (on) 2879 val &= ~FFLP_CFG_1_TCAM_DIS; 2880 else 2881 val |= FFLP_CFG_1_TCAM_DIS; 2882 nw64(FFLP_CFG_1, val); 2883 } 2884 2885 static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio) 2886 { 2887 u64 val = nr64(FFLP_CFG_1); 2888 2889 val &= ~(FFLP_CFG_1_FFLPINITDONE | 2890 FFLP_CFG_1_CAMLAT | 2891 FFLP_CFG_1_CAMRATIO); 2892 val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT); 2893 val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT); 2894 nw64(FFLP_CFG_1, val); 2895 2896 val = nr64(FFLP_CFG_1); 2897 val |= FFLP_CFG_1_FFLPINITDONE; 2898 nw64(FFLP_CFG_1, val); 2899 } 2900 2901 static int tcam_user_eth_class_enable(struct niu *np, unsigned long class, 2902 int on) 2903 { 2904 unsigned long reg; 2905 u64 val; 2906 2907 if (class < CLASS_CODE_ETHERTYPE1 || 2908 class > CLASS_CODE_ETHERTYPE2) 2909 return -EINVAL; 2910 2911 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); 2912 val = nr64(reg); 2913 if (on) 2914 val |= L2_CLS_VLD; 2915 else 2916 val &= ~L2_CLS_VLD; 2917 nw64(reg, val); 2918 2919 return 0; 2920 } 2921 2922 #if 0 2923 static int tcam_user_eth_class_set(struct niu *np, unsigned long class, 2924 u64 ether_type) 2925 { 2926 unsigned long reg; 2927 u64 val; 2928 2929 if (class < CLASS_CODE_ETHERTYPE1 || 2930 class > CLASS_CODE_ETHERTYPE2 || 2931 (ether_type & ~(u64)0xffff) != 0) 2932 return -EINVAL; 2933 2934 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); 2935 val = nr64(reg); 2936 val &= ~L2_CLS_ETYPE; 2937 val |= (ether_type << L2_CLS_ETYPE_SHIFT); 2938 nw64(reg, val); 2939 2940 return 0; 2941 } 2942 #endif 2943 2944 static int tcam_user_ip_class_enable(struct niu *np, unsigned long class, 2945 int on) 2946 { 2947 unsigned long reg; 2948 u64 val; 2949 2950 if (class < CLASS_CODE_USER_PROG1 || 2951 class > CLASS_CODE_USER_PROG4) 2952 return -EINVAL; 2953 2954 reg = L3_CLS(class - CLASS_CODE_USER_PROG1); 2955 val = nr64(reg); 2956 if (on) 2957 val |= L3_CLS_VALID; 2958 else 2959 val &= ~L3_CLS_VALID; 2960 nw64(reg, val); 2961 2962 return 0; 2963 } 2964 2965 static int tcam_user_ip_class_set(struct niu *np, unsigned long class, 2966 int ipv6, u64 protocol_id, 2967 u64 tos_mask, u64 tos_val) 2968 { 2969 unsigned long reg; 2970 u64 val; 2971 2972 if (class < CLASS_CODE_USER_PROG1 || 2973 class > CLASS_CODE_USER_PROG4 || 2974 (protocol_id & ~(u64)0xff) != 0 || 2975 (tos_mask & ~(u64)0xff) != 0 || 2976 (tos_val & ~(u64)0xff) != 0) 2977 return -EINVAL; 2978 2979 reg = L3_CLS(class - CLASS_CODE_USER_PROG1); 2980 val = nr64(reg); 2981 val &= ~(L3_CLS_IPVER | L3_CLS_PID | 2982 L3_CLS_TOSMASK | L3_CLS_TOS); 2983 if (ipv6) 2984 val |= L3_CLS_IPVER; 2985 val |= (protocol_id << L3_CLS_PID_SHIFT); 2986 val |= (tos_mask << L3_CLS_TOSMASK_SHIFT); 2987 val |= (tos_val << L3_CLS_TOS_SHIFT); 2988 nw64(reg, val); 2989 2990 return 0; 2991 } 2992 2993 static int tcam_early_init(struct niu *np) 2994 { 2995 unsigned long i; 2996 int err; 2997 2998 tcam_enable(np, 0); 2999 tcam_set_lat_and_ratio(np, 3000 DEFAULT_TCAM_LATENCY, 3001 DEFAULT_TCAM_ACCESS_RATIO); 3002 for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) { 3003 err = tcam_user_eth_class_enable(np, i, 0); 3004 if (err) 3005 return err; 3006 } 3007 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) { 3008 err = tcam_user_ip_class_enable(np, i, 0); 3009 if (err) 3010 return err; 3011 } 3012 3013 return 0; 3014 } 3015 3016 static int tcam_flush_all(struct niu *np) 3017 { 3018 unsigned long i; 3019 3020 for (i = 0; i < np->parent->tcam_num_entries; i++) { 3021 int err = tcam_flush(np, i); 3022 if (err) 3023 return err; 3024 } 3025 return 0; 3026 } 3027 3028 static u64 hash_addr_regval(unsigned long index, unsigned long num_entries) 3029 { 3030 return (u64)index | (num_entries == 1 ? HASH_TBL_ADDR_AUTOINC : 0); 3031 } 3032 3033 #if 0 3034 static int hash_read(struct niu *np, unsigned long partition, 3035 unsigned long index, unsigned long num_entries, 3036 u64 *data) 3037 { 3038 u64 val = hash_addr_regval(index, num_entries); 3039 unsigned long i; 3040 3041 if (partition >= FCRAM_NUM_PARTITIONS || 3042 index + num_entries > FCRAM_SIZE) 3043 return -EINVAL; 3044 3045 nw64(HASH_TBL_ADDR(partition), val); 3046 for (i = 0; i < num_entries; i++) 3047 data[i] = nr64(HASH_TBL_DATA(partition)); 3048 3049 return 0; 3050 } 3051 #endif 3052 3053 static int hash_write(struct niu *np, unsigned long partition, 3054 unsigned long index, unsigned long num_entries, 3055 u64 *data) 3056 { 3057 u64 val = hash_addr_regval(index, num_entries); 3058 unsigned long i; 3059 3060 if (partition >= FCRAM_NUM_PARTITIONS || 3061 index + (num_entries * 8) > FCRAM_SIZE) 3062 return -EINVAL; 3063 3064 nw64(HASH_TBL_ADDR(partition), val); 3065 for (i = 0; i < num_entries; i++) 3066 nw64(HASH_TBL_DATA(partition), data[i]); 3067 3068 return 0; 3069 } 3070 3071 static void fflp_reset(struct niu *np) 3072 { 3073 u64 val; 3074 3075 nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST); 3076 udelay(10); 3077 nw64(FFLP_CFG_1, 0); 3078 3079 val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE; 3080 nw64(FFLP_CFG_1, val); 3081 } 3082 3083 static void fflp_set_timings(struct niu *np) 3084 { 3085 u64 val = nr64(FFLP_CFG_1); 3086 3087 val &= ~FFLP_CFG_1_FFLPINITDONE; 3088 val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT); 3089 nw64(FFLP_CFG_1, val); 3090 3091 val = nr64(FFLP_CFG_1); 3092 val |= FFLP_CFG_1_FFLPINITDONE; 3093 nw64(FFLP_CFG_1, val); 3094 3095 val = nr64(FCRAM_REF_TMR); 3096 val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN); 3097 val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT); 3098 val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT); 3099 nw64(FCRAM_REF_TMR, val); 3100 } 3101 3102 static int fflp_set_partition(struct niu *np, u64 partition, 3103 u64 mask, u64 base, int enable) 3104 { 3105 unsigned long reg; 3106 u64 val; 3107 3108 if (partition >= FCRAM_NUM_PARTITIONS || 3109 (mask & ~(u64)0x1f) != 0 || 3110 (base & ~(u64)0x1f) != 0) 3111 return -EINVAL; 3112 3113 reg = FLW_PRT_SEL(partition); 3114 3115 val = nr64(reg); 3116 val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE); 3117 val |= (mask << FLW_PRT_SEL_MASK_SHIFT); 3118 val |= (base << FLW_PRT_SEL_BASE_SHIFT); 3119 if (enable) 3120 val |= FLW_PRT_SEL_EXT; 3121 nw64(reg, val); 3122 3123 return 0; 3124 } 3125 3126 static int fflp_disable_all_partitions(struct niu *np) 3127 { 3128 unsigned long i; 3129 3130 for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) { 3131 int err = fflp_set_partition(np, 0, 0, 0, 0); 3132 if (err) 3133 return err; 3134 } 3135 return 0; 3136 } 3137 3138 static void fflp_llcsnap_enable(struct niu *np, int on) 3139 { 3140 u64 val = nr64(FFLP_CFG_1); 3141 3142 if (on) 3143 val |= FFLP_CFG_1_LLCSNAP; 3144 else 3145 val &= ~FFLP_CFG_1_LLCSNAP; 3146 nw64(FFLP_CFG_1, val); 3147 } 3148 3149 static void fflp_errors_enable(struct niu *np, int on) 3150 { 3151 u64 val = nr64(FFLP_CFG_1); 3152 3153 if (on) 3154 val &= ~FFLP_CFG_1_ERRORDIS; 3155 else 3156 val |= FFLP_CFG_1_ERRORDIS; 3157 nw64(FFLP_CFG_1, val); 3158 } 3159 3160 static int fflp_hash_clear(struct niu *np) 3161 { 3162 struct fcram_hash_ipv4 ent; 3163 unsigned long i; 3164 3165 /* IPV4 hash entry with valid bit clear, rest is don't care. */ 3166 memset(&ent, 0, sizeof(ent)); 3167 ent.header = HASH_HEADER_EXT; 3168 3169 for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) { 3170 int err = hash_write(np, 0, i, 1, (u64 *) &ent); 3171 if (err) 3172 return err; 3173 } 3174 return 0; 3175 } 3176 3177 static int fflp_early_init(struct niu *np) 3178 { 3179 struct niu_parent *parent; 3180 unsigned long flags; 3181 int err; 3182 3183 niu_lock_parent(np, flags); 3184 3185 parent = np->parent; 3186 err = 0; 3187 if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) { 3188 if (np->parent->plat_type != PLAT_TYPE_NIU) { 3189 fflp_reset(np); 3190 fflp_set_timings(np); 3191 err = fflp_disable_all_partitions(np); 3192 if (err) { 3193 netif_printk(np, probe, KERN_DEBUG, np->dev, 3194 "fflp_disable_all_partitions failed, err=%d\n", 3195 err); 3196 goto out; 3197 } 3198 } 3199 3200 err = tcam_early_init(np); 3201 if (err) { 3202 netif_printk(np, probe, KERN_DEBUG, np->dev, 3203 "tcam_early_init failed, err=%d\n", err); 3204 goto out; 3205 } 3206 fflp_llcsnap_enable(np, 1); 3207 fflp_errors_enable(np, 0); 3208 nw64(H1POLY, 0); 3209 nw64(H2POLY, 0); 3210 3211 err = tcam_flush_all(np); 3212 if (err) { 3213 netif_printk(np, probe, KERN_DEBUG, np->dev, 3214 "tcam_flush_all failed, err=%d\n", err); 3215 goto out; 3216 } 3217 if (np->parent->plat_type != PLAT_TYPE_NIU) { 3218 err = fflp_hash_clear(np); 3219 if (err) { 3220 netif_printk(np, probe, KERN_DEBUG, np->dev, 3221 "fflp_hash_clear failed, err=%d\n", 3222 err); 3223 goto out; 3224 } 3225 } 3226 3227 vlan_tbl_clear(np); 3228 3229 parent->flags |= PARENT_FLGS_CLS_HWINIT; 3230 } 3231 out: 3232 niu_unlock_parent(np, flags); 3233 return err; 3234 } 3235 3236 static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key) 3237 { 3238 if (class_code < CLASS_CODE_USER_PROG1 || 3239 class_code > CLASS_CODE_SCTP_IPV6) 3240 return -EINVAL; 3241 3242 nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key); 3243 return 0; 3244 } 3245 3246 static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key) 3247 { 3248 if (class_code < CLASS_CODE_USER_PROG1 || 3249 class_code > CLASS_CODE_SCTP_IPV6) 3250 return -EINVAL; 3251 3252 nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key); 3253 return 0; 3254 } 3255 3256 /* Entries for the ports are interleaved in the TCAM */ 3257 static u16 tcam_get_index(struct niu *np, u16 idx) 3258 { 3259 /* One entry reserved for IP fragment rule */ 3260 if (idx >= (np->clas.tcam_sz - 1)) 3261 idx = 0; 3262 return np->clas.tcam_top + ((idx+1) * np->parent->num_ports); 3263 } 3264 3265 static u16 tcam_get_size(struct niu *np) 3266 { 3267 /* One entry reserved for IP fragment rule */ 3268 return np->clas.tcam_sz - 1; 3269 } 3270 3271 static u16 tcam_get_valid_entry_cnt(struct niu *np) 3272 { 3273 /* One entry reserved for IP fragment rule */ 3274 return np->clas.tcam_valid_entries - 1; 3275 } 3276 3277 static void niu_rx_skb_append(struct sk_buff *skb, struct page *page, 3278 u32 offset, u32 size, u32 truesize) 3279 { 3280 skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, page, offset, size); 3281 3282 skb->len += size; 3283 skb->data_len += size; 3284 skb->truesize += truesize; 3285 } 3286 3287 static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a) 3288 { 3289 a >>= PAGE_SHIFT; 3290 a ^= (a >> ilog2(MAX_RBR_RING_SIZE)); 3291 3292 return a & (MAX_RBR_RING_SIZE - 1); 3293 } 3294 3295 static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr, 3296 struct page ***link) 3297 { 3298 unsigned int h = niu_hash_rxaddr(rp, addr); 3299 struct page *p, **pp; 3300 3301 addr &= PAGE_MASK; 3302 pp = &rp->rxhash[h]; 3303 for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) { 3304 if (p->index == addr) { 3305 *link = pp; 3306 goto found; 3307 } 3308 } 3309 BUG(); 3310 3311 found: 3312 return p; 3313 } 3314 3315 static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base) 3316 { 3317 unsigned int h = niu_hash_rxaddr(rp, base); 3318 3319 page->index = base; 3320 page->mapping = (struct address_space *) rp->rxhash[h]; 3321 rp->rxhash[h] = page; 3322 } 3323 3324 static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, 3325 gfp_t mask, int start_index) 3326 { 3327 struct page *page; 3328 u64 addr; 3329 int i; 3330 3331 page = alloc_page(mask); 3332 if (!page) 3333 return -ENOMEM; 3334 3335 addr = np->ops->map_page(np->device, page, 0, 3336 PAGE_SIZE, DMA_FROM_DEVICE); 3337 if (!addr) { 3338 __free_page(page); 3339 return -ENOMEM; 3340 } 3341 3342 niu_hash_page(rp, page, addr); 3343 if (rp->rbr_blocks_per_page > 1) 3344 page_ref_add(page, rp->rbr_blocks_per_page - 1); 3345 3346 for (i = 0; i < rp->rbr_blocks_per_page; i++) { 3347 __le32 *rbr = &rp->rbr[start_index + i]; 3348 3349 *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT); 3350 addr += rp->rbr_block_size; 3351 } 3352 3353 return 0; 3354 } 3355 3356 static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) 3357 { 3358 int index = rp->rbr_index; 3359 3360 rp->rbr_pending++; 3361 if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) { 3362 int err = niu_rbr_add_page(np, rp, mask, index); 3363 3364 if (unlikely(err)) { 3365 rp->rbr_pending--; 3366 return; 3367 } 3368 3369 rp->rbr_index += rp->rbr_blocks_per_page; 3370 BUG_ON(rp->rbr_index > rp->rbr_table_size); 3371 if (rp->rbr_index == rp->rbr_table_size) 3372 rp->rbr_index = 0; 3373 3374 if (rp->rbr_pending >= rp->rbr_kick_thresh) { 3375 nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending); 3376 rp->rbr_pending = 0; 3377 } 3378 } 3379 } 3380 3381 static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp) 3382 { 3383 unsigned int index = rp->rcr_index; 3384 int num_rcr = 0; 3385 3386 rp->rx_dropped++; 3387 while (1) { 3388 struct page *page, **link; 3389 u64 addr, val; 3390 u32 rcr_size; 3391 3392 num_rcr++; 3393 3394 val = le64_to_cpup(&rp->rcr[index]); 3395 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << 3396 RCR_ENTRY_PKT_BUF_ADDR_SHIFT; 3397 page = niu_find_rxpage(rp, addr, &link); 3398 3399 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> 3400 RCR_ENTRY_PKTBUFSZ_SHIFT]; 3401 if ((page->index + PAGE_SIZE) - rcr_size == addr) { 3402 *link = (struct page *) page->mapping; 3403 np->ops->unmap_page(np->device, page->index, 3404 PAGE_SIZE, DMA_FROM_DEVICE); 3405 page->index = 0; 3406 page->mapping = NULL; 3407 __free_page(page); 3408 rp->rbr_refill_pending++; 3409 } 3410 3411 index = NEXT_RCR(rp, index); 3412 if (!(val & RCR_ENTRY_MULTI)) 3413 break; 3414 3415 } 3416 rp->rcr_index = index; 3417 3418 return num_rcr; 3419 } 3420 3421 static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np, 3422 struct rx_ring_info *rp) 3423 { 3424 unsigned int index = rp->rcr_index; 3425 struct rx_pkt_hdr1 *rh; 3426 struct sk_buff *skb; 3427 int len, num_rcr; 3428 3429 skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE); 3430 if (unlikely(!skb)) 3431 return niu_rx_pkt_ignore(np, rp); 3432 3433 num_rcr = 0; 3434 while (1) { 3435 struct page *page, **link; 3436 u32 rcr_size, append_size; 3437 u64 addr, val, off; 3438 3439 num_rcr++; 3440 3441 val = le64_to_cpup(&rp->rcr[index]); 3442 3443 len = (val & RCR_ENTRY_L2_LEN) >> 3444 RCR_ENTRY_L2_LEN_SHIFT; 3445 len -= ETH_FCS_LEN; 3446 3447 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << 3448 RCR_ENTRY_PKT_BUF_ADDR_SHIFT; 3449 page = niu_find_rxpage(rp, addr, &link); 3450 3451 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> 3452 RCR_ENTRY_PKTBUFSZ_SHIFT]; 3453 3454 off = addr & ~PAGE_MASK; 3455 append_size = rcr_size; 3456 if (num_rcr == 1) { 3457 int ptype; 3458 3459 ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT); 3460 if ((ptype == RCR_PKT_TYPE_TCP || 3461 ptype == RCR_PKT_TYPE_UDP) && 3462 !(val & (RCR_ENTRY_NOPORT | 3463 RCR_ENTRY_ERROR))) 3464 skb->ip_summed = CHECKSUM_UNNECESSARY; 3465 else 3466 skb_checksum_none_assert(skb); 3467 } else if (!(val & RCR_ENTRY_MULTI)) 3468 append_size = len - skb->len; 3469 3470 niu_rx_skb_append(skb, page, off, append_size, rcr_size); 3471 if ((page->index + rp->rbr_block_size) - rcr_size == addr) { 3472 *link = (struct page *) page->mapping; 3473 np->ops->unmap_page(np->device, page->index, 3474 PAGE_SIZE, DMA_FROM_DEVICE); 3475 page->index = 0; 3476 page->mapping = NULL; 3477 rp->rbr_refill_pending++; 3478 } else 3479 get_page(page); 3480 3481 index = NEXT_RCR(rp, index); 3482 if (!(val & RCR_ENTRY_MULTI)) 3483 break; 3484 3485 } 3486 rp->rcr_index = index; 3487 3488 len += sizeof(*rh); 3489 len = min_t(int, len, sizeof(*rh) + VLAN_ETH_HLEN); 3490 __pskb_pull_tail(skb, len); 3491 3492 rh = (struct rx_pkt_hdr1 *) skb->data; 3493 if (np->dev->features & NETIF_F_RXHASH) 3494 skb_set_hash(skb, 3495 ((u32)rh->hashval2_0 << 24 | 3496 (u32)rh->hashval2_1 << 16 | 3497 (u32)rh->hashval1_1 << 8 | 3498 (u32)rh->hashval1_2 << 0), 3499 PKT_HASH_TYPE_L3); 3500 skb_pull(skb, sizeof(*rh)); 3501 3502 rp->rx_packets++; 3503 rp->rx_bytes += skb->len; 3504 3505 skb->protocol = eth_type_trans(skb, np->dev); 3506 skb_record_rx_queue(skb, rp->rx_channel); 3507 napi_gro_receive(napi, skb); 3508 3509 return num_rcr; 3510 } 3511 3512 static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) 3513 { 3514 int blocks_per_page = rp->rbr_blocks_per_page; 3515 int err, index = rp->rbr_index; 3516 3517 err = 0; 3518 while (index < (rp->rbr_table_size - blocks_per_page)) { 3519 err = niu_rbr_add_page(np, rp, mask, index); 3520 if (unlikely(err)) 3521 break; 3522 3523 index += blocks_per_page; 3524 } 3525 3526 rp->rbr_index = index; 3527 return err; 3528 } 3529 3530 static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp) 3531 { 3532 int i; 3533 3534 for (i = 0; i < MAX_RBR_RING_SIZE; i++) { 3535 struct page *page; 3536 3537 page = rp->rxhash[i]; 3538 while (page) { 3539 struct page *next = (struct page *) page->mapping; 3540 u64 base = page->index; 3541 3542 np->ops->unmap_page(np->device, base, PAGE_SIZE, 3543 DMA_FROM_DEVICE); 3544 page->index = 0; 3545 page->mapping = NULL; 3546 3547 __free_page(page); 3548 3549 page = next; 3550 } 3551 } 3552 3553 for (i = 0; i < rp->rbr_table_size; i++) 3554 rp->rbr[i] = cpu_to_le32(0); 3555 rp->rbr_index = 0; 3556 } 3557 3558 static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx) 3559 { 3560 struct tx_buff_info *tb = &rp->tx_buffs[idx]; 3561 struct sk_buff *skb = tb->skb; 3562 struct tx_pkt_hdr *tp; 3563 u64 tx_flags; 3564 int i, len; 3565 3566 tp = (struct tx_pkt_hdr *) skb->data; 3567 tx_flags = le64_to_cpup(&tp->flags); 3568 3569 rp->tx_packets++; 3570 rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) - 3571 ((tx_flags & TXHDR_PAD) / 2)); 3572 3573 len = skb_headlen(skb); 3574 np->ops->unmap_single(np->device, tb->mapping, 3575 len, DMA_TO_DEVICE); 3576 3577 if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK) 3578 rp->mark_pending--; 3579 3580 tb->skb = NULL; 3581 do { 3582 idx = NEXT_TX(rp, idx); 3583 len -= MAX_TX_DESC_LEN; 3584 } while (len > 0); 3585 3586 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 3587 tb = &rp->tx_buffs[idx]; 3588 BUG_ON(tb->skb != NULL); 3589 np->ops->unmap_page(np->device, tb->mapping, 3590 skb_frag_size(&skb_shinfo(skb)->frags[i]), 3591 DMA_TO_DEVICE); 3592 idx = NEXT_TX(rp, idx); 3593 } 3594 3595 dev_kfree_skb(skb); 3596 3597 return idx; 3598 } 3599 3600 #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4) 3601 3602 static void niu_tx_work(struct niu *np, struct tx_ring_info *rp) 3603 { 3604 struct netdev_queue *txq; 3605 u16 pkt_cnt, tmp; 3606 int cons, index; 3607 u64 cs; 3608 3609 index = (rp - np->tx_rings); 3610 txq = netdev_get_tx_queue(np->dev, index); 3611 3612 cs = rp->tx_cs; 3613 if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK)))) 3614 goto out; 3615 3616 tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT; 3617 pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) & 3618 (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT); 3619 3620 rp->last_pkt_cnt = tmp; 3621 3622 cons = rp->cons; 3623 3624 netif_printk(np, tx_done, KERN_DEBUG, np->dev, 3625 "%s() pkt_cnt[%u] cons[%d]\n", __func__, pkt_cnt, cons); 3626 3627 while (pkt_cnt--) 3628 cons = release_tx_packet(np, rp, cons); 3629 3630 rp->cons = cons; 3631 smp_mb(); 3632 3633 out: 3634 if (unlikely(netif_tx_queue_stopped(txq) && 3635 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) { 3636 __netif_tx_lock(txq, smp_processor_id()); 3637 if (netif_tx_queue_stopped(txq) && 3638 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))) 3639 netif_tx_wake_queue(txq); 3640 __netif_tx_unlock(txq); 3641 } 3642 } 3643 3644 static inline void niu_sync_rx_discard_stats(struct niu *np, 3645 struct rx_ring_info *rp, 3646 const int limit) 3647 { 3648 /* This elaborate scheme is needed for reading the RX discard 3649 * counters, as they are only 16-bit and can overflow quickly, 3650 * and because the overflow indication bit is not usable as 3651 * the counter value does not wrap, but remains at max value 3652 * 0xFFFF. 3653 * 3654 * In theory and in practice counters can be lost in between 3655 * reading nr64() and clearing the counter nw64(). For this 3656 * reason, the number of counter clearings nw64() is 3657 * limited/reduced though the limit parameter. 3658 */ 3659 int rx_channel = rp->rx_channel; 3660 u32 misc, wred; 3661 3662 /* RXMISC (Receive Miscellaneous Discard Count), covers the 3663 * following discard events: IPP (Input Port Process), 3664 * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive 3665 * Block Ring) prefetch buffer is empty. 3666 */ 3667 misc = nr64(RXMISC(rx_channel)); 3668 if (unlikely((misc & RXMISC_COUNT) > limit)) { 3669 nw64(RXMISC(rx_channel), 0); 3670 rp->rx_errors += misc & RXMISC_COUNT; 3671 3672 if (unlikely(misc & RXMISC_OFLOW)) 3673 dev_err(np->device, "rx-%d: Counter overflow RXMISC discard\n", 3674 rx_channel); 3675 3676 netif_printk(np, rx_err, KERN_DEBUG, np->dev, 3677 "rx-%d: MISC drop=%u over=%u\n", 3678 rx_channel, misc, misc-limit); 3679 } 3680 3681 /* WRED (Weighted Random Early Discard) by hardware */ 3682 wred = nr64(RED_DIS_CNT(rx_channel)); 3683 if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) { 3684 nw64(RED_DIS_CNT(rx_channel), 0); 3685 rp->rx_dropped += wred & RED_DIS_CNT_COUNT; 3686 3687 if (unlikely(wred & RED_DIS_CNT_OFLOW)) 3688 dev_err(np->device, "rx-%d: Counter overflow WRED discard\n", rx_channel); 3689 3690 netif_printk(np, rx_err, KERN_DEBUG, np->dev, 3691 "rx-%d: WRED drop=%u over=%u\n", 3692 rx_channel, wred, wred-limit); 3693 } 3694 } 3695 3696 static int niu_rx_work(struct napi_struct *napi, struct niu *np, 3697 struct rx_ring_info *rp, int budget) 3698 { 3699 int qlen, rcr_done = 0, work_done = 0; 3700 struct rxdma_mailbox *mbox = rp->mbox; 3701 u64 stat; 3702 3703 #if 1 3704 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); 3705 qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN; 3706 #else 3707 stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); 3708 qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN); 3709 #endif 3710 mbox->rx_dma_ctl_stat = 0; 3711 mbox->rcrstat_a = 0; 3712 3713 netif_printk(np, rx_status, KERN_DEBUG, np->dev, 3714 "%s(chan[%d]), stat[%llx] qlen=%d\n", 3715 __func__, rp->rx_channel, (unsigned long long)stat, qlen); 3716 3717 rcr_done = work_done = 0; 3718 qlen = min(qlen, budget); 3719 while (work_done < qlen) { 3720 rcr_done += niu_process_rx_pkt(napi, np, rp); 3721 work_done++; 3722 } 3723 3724 if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) { 3725 unsigned int i; 3726 3727 for (i = 0; i < rp->rbr_refill_pending; i++) 3728 niu_rbr_refill(np, rp, GFP_ATOMIC); 3729 rp->rbr_refill_pending = 0; 3730 } 3731 3732 stat = (RX_DMA_CTL_STAT_MEX | 3733 ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) | 3734 ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT)); 3735 3736 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat); 3737 3738 /* Only sync discards stats when qlen indicate potential for drops */ 3739 if (qlen > 10) 3740 niu_sync_rx_discard_stats(np, rp, 0x7FFF); 3741 3742 return work_done; 3743 } 3744 3745 static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget) 3746 { 3747 u64 v0 = lp->v0; 3748 u32 tx_vec = (v0 >> 32); 3749 u32 rx_vec = (v0 & 0xffffffff); 3750 int i, work_done = 0; 3751 3752 netif_printk(np, intr, KERN_DEBUG, np->dev, 3753 "%s() v0[%016llx]\n", __func__, (unsigned long long)v0); 3754 3755 for (i = 0; i < np->num_tx_rings; i++) { 3756 struct tx_ring_info *rp = &np->tx_rings[i]; 3757 if (tx_vec & (1 << rp->tx_channel)) 3758 niu_tx_work(np, rp); 3759 nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0); 3760 } 3761 3762 for (i = 0; i < np->num_rx_rings; i++) { 3763 struct rx_ring_info *rp = &np->rx_rings[i]; 3764 3765 if (rx_vec & (1 << rp->rx_channel)) { 3766 int this_work_done; 3767 3768 this_work_done = niu_rx_work(&lp->napi, np, rp, 3769 budget); 3770 3771 budget -= this_work_done; 3772 work_done += this_work_done; 3773 } 3774 nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0); 3775 } 3776 3777 return work_done; 3778 } 3779 3780 static int niu_poll(struct napi_struct *napi, int budget) 3781 { 3782 struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi); 3783 struct niu *np = lp->np; 3784 int work_done; 3785 3786 work_done = niu_poll_core(np, lp, budget); 3787 3788 if (work_done < budget) { 3789 napi_complete_done(napi, work_done); 3790 niu_ldg_rearm(np, lp, 1); 3791 } 3792 return work_done; 3793 } 3794 3795 static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp, 3796 u64 stat) 3797 { 3798 netdev_err(np->dev, "RX channel %u errors ( ", rp->rx_channel); 3799 3800 if (stat & RX_DMA_CTL_STAT_RBR_TMOUT) 3801 pr_cont("RBR_TMOUT "); 3802 if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR) 3803 pr_cont("RSP_CNT "); 3804 if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS) 3805 pr_cont("BYTE_EN_BUS "); 3806 if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR) 3807 pr_cont("RSP_DAT "); 3808 if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR) 3809 pr_cont("RCR_ACK "); 3810 if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR) 3811 pr_cont("RCR_SHA_PAR "); 3812 if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR) 3813 pr_cont("RBR_PRE_PAR "); 3814 if (stat & RX_DMA_CTL_STAT_CONFIG_ERR) 3815 pr_cont("CONFIG "); 3816 if (stat & RX_DMA_CTL_STAT_RCRINCON) 3817 pr_cont("RCRINCON "); 3818 if (stat & RX_DMA_CTL_STAT_RCRFULL) 3819 pr_cont("RCRFULL "); 3820 if (stat & RX_DMA_CTL_STAT_RBRFULL) 3821 pr_cont("RBRFULL "); 3822 if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE) 3823 pr_cont("RBRLOGPAGE "); 3824 if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE) 3825 pr_cont("CFIGLOGPAGE "); 3826 if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR) 3827 pr_cont("DC_FIDO "); 3828 3829 pr_cont(")\n"); 3830 } 3831 3832 static int niu_rx_error(struct niu *np, struct rx_ring_info *rp) 3833 { 3834 u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); 3835 int err = 0; 3836 3837 3838 if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL | 3839 RX_DMA_CTL_STAT_PORT_FATAL)) 3840 err = -EINVAL; 3841 3842 if (err) { 3843 netdev_err(np->dev, "RX channel %u error, stat[%llx]\n", 3844 rp->rx_channel, 3845 (unsigned long long) stat); 3846 3847 niu_log_rxchan_errors(np, rp, stat); 3848 } 3849 3850 nw64(RX_DMA_CTL_STAT(rp->rx_channel), 3851 stat & RX_DMA_CTL_WRITE_CLEAR_ERRS); 3852 3853 return err; 3854 } 3855 3856 static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp, 3857 u64 cs) 3858 { 3859 netdev_err(np->dev, "TX channel %u errors ( ", rp->tx_channel); 3860 3861 if (cs & TX_CS_MBOX_ERR) 3862 pr_cont("MBOX "); 3863 if (cs & TX_CS_PKT_SIZE_ERR) 3864 pr_cont("PKT_SIZE "); 3865 if (cs & TX_CS_TX_RING_OFLOW) 3866 pr_cont("TX_RING_OFLOW "); 3867 if (cs & TX_CS_PREF_BUF_PAR_ERR) 3868 pr_cont("PREF_BUF_PAR "); 3869 if (cs & TX_CS_NACK_PREF) 3870 pr_cont("NACK_PREF "); 3871 if (cs & TX_CS_NACK_PKT_RD) 3872 pr_cont("NACK_PKT_RD "); 3873 if (cs & TX_CS_CONF_PART_ERR) 3874 pr_cont("CONF_PART "); 3875 if (cs & TX_CS_PKT_PRT_ERR) 3876 pr_cont("PKT_PTR "); 3877 3878 pr_cont(")\n"); 3879 } 3880 3881 static int niu_tx_error(struct niu *np, struct tx_ring_info *rp) 3882 { 3883 u64 cs, logh, logl; 3884 3885 cs = nr64(TX_CS(rp->tx_channel)); 3886 logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel)); 3887 logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel)); 3888 3889 netdev_err(np->dev, "TX channel %u error, cs[%llx] logh[%llx] logl[%llx]\n", 3890 rp->tx_channel, 3891 (unsigned long long)cs, 3892 (unsigned long long)logh, 3893 (unsigned long long)logl); 3894 3895 niu_log_txchan_errors(np, rp, cs); 3896 3897 return -ENODEV; 3898 } 3899 3900 static int niu_mif_interrupt(struct niu *np) 3901 { 3902 u64 mif_status = nr64(MIF_STATUS); 3903 int phy_mdint = 0; 3904 3905 if (np->flags & NIU_FLAGS_XMAC) { 3906 u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS); 3907 3908 if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT) 3909 phy_mdint = 1; 3910 } 3911 3912 netdev_err(np->dev, "MIF interrupt, stat[%llx] phy_mdint(%d)\n", 3913 (unsigned long long)mif_status, phy_mdint); 3914 3915 return -ENODEV; 3916 } 3917 3918 static void niu_xmac_interrupt(struct niu *np) 3919 { 3920 struct niu_xmac_stats *mp = &np->mac_stats.xmac; 3921 u64 val; 3922 3923 val = nr64_mac(XTXMAC_STATUS); 3924 if (val & XTXMAC_STATUS_FRAME_CNT_EXP) 3925 mp->tx_frames += TXMAC_FRM_CNT_COUNT; 3926 if (val & XTXMAC_STATUS_BYTE_CNT_EXP) 3927 mp->tx_bytes += TXMAC_BYTE_CNT_COUNT; 3928 if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR) 3929 mp->tx_fifo_errors++; 3930 if (val & XTXMAC_STATUS_TXMAC_OFLOW) 3931 mp->tx_overflow_errors++; 3932 if (val & XTXMAC_STATUS_MAX_PSIZE_ERR) 3933 mp->tx_max_pkt_size_errors++; 3934 if (val & XTXMAC_STATUS_TXMAC_UFLOW) 3935 mp->tx_underflow_errors++; 3936 3937 val = nr64_mac(XRXMAC_STATUS); 3938 if (val & XRXMAC_STATUS_LCL_FLT_STATUS) 3939 mp->rx_local_faults++; 3940 if (val & XRXMAC_STATUS_RFLT_DET) 3941 mp->rx_remote_faults++; 3942 if (val & XRXMAC_STATUS_LFLT_CNT_EXP) 3943 mp->rx_link_faults += LINK_FAULT_CNT_COUNT; 3944 if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP) 3945 mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT; 3946 if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP) 3947 mp->rx_frags += RXMAC_FRAG_CNT_COUNT; 3948 if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP) 3949 mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT; 3950 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) 3951 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; 3952 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) 3953 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; 3954 if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP) 3955 mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT; 3956 if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP) 3957 mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT; 3958 if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP) 3959 mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT; 3960 if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP) 3961 mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT; 3962 if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP) 3963 mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT; 3964 if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP) 3965 mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT; 3966 if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP) 3967 mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT; 3968 if (val & XRXMAC_STATUS_RXOCTET_CNT_EXP) 3969 mp->rx_octets += RXMAC_BT_CNT_COUNT; 3970 if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP) 3971 mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT; 3972 if (val & XRXMAC_STATUS_LENERR_CNT_EXP) 3973 mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT; 3974 if (val & XRXMAC_STATUS_CRCERR_CNT_EXP) 3975 mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT; 3976 if (val & XRXMAC_STATUS_RXUFLOW) 3977 mp->rx_underflows++; 3978 if (val & XRXMAC_STATUS_RXOFLOW) 3979 mp->rx_overflows++; 3980 3981 val = nr64_mac(XMAC_FC_STAT); 3982 if (val & XMAC_FC_STAT_TX_MAC_NPAUSE) 3983 mp->pause_off_state++; 3984 if (val & XMAC_FC_STAT_TX_MAC_PAUSE) 3985 mp->pause_on_state++; 3986 if (val & XMAC_FC_STAT_RX_MAC_RPAUSE) 3987 mp->pause_received++; 3988 } 3989 3990 static void niu_bmac_interrupt(struct niu *np) 3991 { 3992 struct niu_bmac_stats *mp = &np->mac_stats.bmac; 3993 u64 val; 3994 3995 val = nr64_mac(BTXMAC_STATUS); 3996 if (val & BTXMAC_STATUS_UNDERRUN) 3997 mp->tx_underflow_errors++; 3998 if (val & BTXMAC_STATUS_MAX_PKT_ERR) 3999 mp->tx_max_pkt_size_errors++; 4000 if (val & BTXMAC_STATUS_BYTE_CNT_EXP) 4001 mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT; 4002 if (val & BTXMAC_STATUS_FRAME_CNT_EXP) 4003 mp->tx_frames += BTXMAC_FRM_CNT_COUNT; 4004 4005 val = nr64_mac(BRXMAC_STATUS); 4006 if (val & BRXMAC_STATUS_OVERFLOW) 4007 mp->rx_overflows++; 4008 if (val & BRXMAC_STATUS_FRAME_CNT_EXP) 4009 mp->rx_frames += BRXMAC_FRAME_CNT_COUNT; 4010 if (val & BRXMAC_STATUS_ALIGN_ERR_EXP) 4011 mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; 4012 if (val & BRXMAC_STATUS_CRC_ERR_EXP) 4013 mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; 4014 if (val & BRXMAC_STATUS_LEN_ERR_EXP) 4015 mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT; 4016 4017 val = nr64_mac(BMAC_CTRL_STATUS); 4018 if (val & BMAC_CTRL_STATUS_NOPAUSE) 4019 mp->pause_off_state++; 4020 if (val & BMAC_CTRL_STATUS_PAUSE) 4021 mp->pause_on_state++; 4022 if (val & BMAC_CTRL_STATUS_PAUSE_RECV) 4023 mp->pause_received++; 4024 } 4025 4026 static int niu_mac_interrupt(struct niu *np) 4027 { 4028 if (np->flags & NIU_FLAGS_XMAC) 4029 niu_xmac_interrupt(np); 4030 else 4031 niu_bmac_interrupt(np); 4032 4033 return 0; 4034 } 4035 4036 static void niu_log_device_error(struct niu *np, u64 stat) 4037 { 4038 netdev_err(np->dev, "Core device errors ( "); 4039 4040 if (stat & SYS_ERR_MASK_META2) 4041 pr_cont("META2 "); 4042 if (stat & SYS_ERR_MASK_META1) 4043 pr_cont("META1 "); 4044 if (stat & SYS_ERR_MASK_PEU) 4045 pr_cont("PEU "); 4046 if (stat & SYS_ERR_MASK_TXC) 4047 pr_cont("TXC "); 4048 if (stat & SYS_ERR_MASK_RDMC) 4049 pr_cont("RDMC "); 4050 if (stat & SYS_ERR_MASK_TDMC) 4051 pr_cont("TDMC "); 4052 if (stat & SYS_ERR_MASK_ZCP) 4053 pr_cont("ZCP "); 4054 if (stat & SYS_ERR_MASK_FFLP) 4055 pr_cont("FFLP "); 4056 if (stat & SYS_ERR_MASK_IPP) 4057 pr_cont("IPP "); 4058 if (stat & SYS_ERR_MASK_MAC) 4059 pr_cont("MAC "); 4060 if (stat & SYS_ERR_MASK_SMX) 4061 pr_cont("SMX "); 4062 4063 pr_cont(")\n"); 4064 } 4065 4066 static int niu_device_error(struct niu *np) 4067 { 4068 u64 stat = nr64(SYS_ERR_STAT); 4069 4070 netdev_err(np->dev, "Core device error, stat[%llx]\n", 4071 (unsigned long long)stat); 4072 4073 niu_log_device_error(np, stat); 4074 4075 return -ENODEV; 4076 } 4077 4078 static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp, 4079 u64 v0, u64 v1, u64 v2) 4080 { 4081 4082 int i, err = 0; 4083 4084 lp->v0 = v0; 4085 lp->v1 = v1; 4086 lp->v2 = v2; 4087 4088 if (v1 & 0x00000000ffffffffULL) { 4089 u32 rx_vec = (v1 & 0xffffffff); 4090 4091 for (i = 0; i < np->num_rx_rings; i++) { 4092 struct rx_ring_info *rp = &np->rx_rings[i]; 4093 4094 if (rx_vec & (1 << rp->rx_channel)) { 4095 int r = niu_rx_error(np, rp); 4096 if (r) { 4097 err = r; 4098 } else { 4099 if (!v0) 4100 nw64(RX_DMA_CTL_STAT(rp->rx_channel), 4101 RX_DMA_CTL_STAT_MEX); 4102 } 4103 } 4104 } 4105 } 4106 if (v1 & 0x7fffffff00000000ULL) { 4107 u32 tx_vec = (v1 >> 32) & 0x7fffffff; 4108 4109 for (i = 0; i < np->num_tx_rings; i++) { 4110 struct tx_ring_info *rp = &np->tx_rings[i]; 4111 4112 if (tx_vec & (1 << rp->tx_channel)) { 4113 int r = niu_tx_error(np, rp); 4114 if (r) 4115 err = r; 4116 } 4117 } 4118 } 4119 if ((v0 | v1) & 0x8000000000000000ULL) { 4120 int r = niu_mif_interrupt(np); 4121 if (r) 4122 err = r; 4123 } 4124 if (v2) { 4125 if (v2 & 0x01ef) { 4126 int r = niu_mac_interrupt(np); 4127 if (r) 4128 err = r; 4129 } 4130 if (v2 & 0x0210) { 4131 int r = niu_device_error(np); 4132 if (r) 4133 err = r; 4134 } 4135 } 4136 4137 if (err) 4138 niu_enable_interrupts(np, 0); 4139 4140 return err; 4141 } 4142 4143 static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp, 4144 int ldn) 4145 { 4146 struct rxdma_mailbox *mbox = rp->mbox; 4147 u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); 4148 4149 stat_write = (RX_DMA_CTL_STAT_RCRTHRES | 4150 RX_DMA_CTL_STAT_RCRTO); 4151 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write); 4152 4153 netif_printk(np, intr, KERN_DEBUG, np->dev, 4154 "%s() stat[%llx]\n", __func__, (unsigned long long)stat); 4155 } 4156 4157 static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp, 4158 int ldn) 4159 { 4160 rp->tx_cs = nr64(TX_CS(rp->tx_channel)); 4161 4162 netif_printk(np, intr, KERN_DEBUG, np->dev, 4163 "%s() cs[%llx]\n", __func__, (unsigned long long)rp->tx_cs); 4164 } 4165 4166 static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0) 4167 { 4168 struct niu_parent *parent = np->parent; 4169 u32 rx_vec, tx_vec; 4170 int i; 4171 4172 tx_vec = (v0 >> 32); 4173 rx_vec = (v0 & 0xffffffff); 4174 4175 for (i = 0; i < np->num_rx_rings; i++) { 4176 struct rx_ring_info *rp = &np->rx_rings[i]; 4177 int ldn = LDN_RXDMA(rp->rx_channel); 4178 4179 if (parent->ldg_map[ldn] != ldg) 4180 continue; 4181 4182 nw64(LD_IM0(ldn), LD_IM0_MASK); 4183 if (rx_vec & (1 << rp->rx_channel)) 4184 niu_rxchan_intr(np, rp, ldn); 4185 } 4186 4187 for (i = 0; i < np->num_tx_rings; i++) { 4188 struct tx_ring_info *rp = &np->tx_rings[i]; 4189 int ldn = LDN_TXDMA(rp->tx_channel); 4190 4191 if (parent->ldg_map[ldn] != ldg) 4192 continue; 4193 4194 nw64(LD_IM0(ldn), LD_IM0_MASK); 4195 if (tx_vec & (1 << rp->tx_channel)) 4196 niu_txchan_intr(np, rp, ldn); 4197 } 4198 } 4199 4200 static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp, 4201 u64 v0, u64 v1, u64 v2) 4202 { 4203 if (likely(napi_schedule_prep(&lp->napi))) { 4204 lp->v0 = v0; 4205 lp->v1 = v1; 4206 lp->v2 = v2; 4207 __niu_fastpath_interrupt(np, lp->ldg_num, v0); 4208 __napi_schedule(&lp->napi); 4209 } 4210 } 4211 4212 static irqreturn_t niu_interrupt(int irq, void *dev_id) 4213 { 4214 struct niu_ldg *lp = dev_id; 4215 struct niu *np = lp->np; 4216 int ldg = lp->ldg_num; 4217 unsigned long flags; 4218 u64 v0, v1, v2; 4219 4220 if (netif_msg_intr(np)) 4221 printk(KERN_DEBUG KBUILD_MODNAME ": " "%s() ldg[%p](%d)", 4222 __func__, lp, ldg); 4223 4224 spin_lock_irqsave(&np->lock, flags); 4225 4226 v0 = nr64(LDSV0(ldg)); 4227 v1 = nr64(LDSV1(ldg)); 4228 v2 = nr64(LDSV2(ldg)); 4229 4230 if (netif_msg_intr(np)) 4231 pr_cont(" v0[%llx] v1[%llx] v2[%llx]\n", 4232 (unsigned long long) v0, 4233 (unsigned long long) v1, 4234 (unsigned long long) v2); 4235 4236 if (unlikely(!v0 && !v1 && !v2)) { 4237 spin_unlock_irqrestore(&np->lock, flags); 4238 return IRQ_NONE; 4239 } 4240 4241 if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) { 4242 int err = niu_slowpath_interrupt(np, lp, v0, v1, v2); 4243 if (err) 4244 goto out; 4245 } 4246 if (likely(v0 & ~((u64)1 << LDN_MIF))) 4247 niu_schedule_napi(np, lp, v0, v1, v2); 4248 else 4249 niu_ldg_rearm(np, lp, 1); 4250 out: 4251 spin_unlock_irqrestore(&np->lock, flags); 4252 4253 return IRQ_HANDLED; 4254 } 4255 4256 static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp) 4257 { 4258 if (rp->mbox) { 4259 np->ops->free_coherent(np->device, 4260 sizeof(struct rxdma_mailbox), 4261 rp->mbox, rp->mbox_dma); 4262 rp->mbox = NULL; 4263 } 4264 if (rp->rcr) { 4265 np->ops->free_coherent(np->device, 4266 MAX_RCR_RING_SIZE * sizeof(__le64), 4267 rp->rcr, rp->rcr_dma); 4268 rp->rcr = NULL; 4269 rp->rcr_table_size = 0; 4270 rp->rcr_index = 0; 4271 } 4272 if (rp->rbr) { 4273 niu_rbr_free(np, rp); 4274 4275 np->ops->free_coherent(np->device, 4276 MAX_RBR_RING_SIZE * sizeof(__le32), 4277 rp->rbr, rp->rbr_dma); 4278 rp->rbr = NULL; 4279 rp->rbr_table_size = 0; 4280 rp->rbr_index = 0; 4281 } 4282 kfree(rp->rxhash); 4283 rp->rxhash = NULL; 4284 } 4285 4286 static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp) 4287 { 4288 if (rp->mbox) { 4289 np->ops->free_coherent(np->device, 4290 sizeof(struct txdma_mailbox), 4291 rp->mbox, rp->mbox_dma); 4292 rp->mbox = NULL; 4293 } 4294 if (rp->descr) { 4295 int i; 4296 4297 for (i = 0; i < MAX_TX_RING_SIZE; i++) { 4298 if (rp->tx_buffs[i].skb) 4299 (void) release_tx_packet(np, rp, i); 4300 } 4301 4302 np->ops->free_coherent(np->device, 4303 MAX_TX_RING_SIZE * sizeof(__le64), 4304 rp->descr, rp->descr_dma); 4305 rp->descr = NULL; 4306 rp->pending = 0; 4307 rp->prod = 0; 4308 rp->cons = 0; 4309 rp->wrap_bit = 0; 4310 } 4311 } 4312 4313 static void niu_free_channels(struct niu *np) 4314 { 4315 int i; 4316 4317 if (np->rx_rings) { 4318 for (i = 0; i < np->num_rx_rings; i++) { 4319 struct rx_ring_info *rp = &np->rx_rings[i]; 4320 4321 niu_free_rx_ring_info(np, rp); 4322 } 4323 kfree(np->rx_rings); 4324 np->rx_rings = NULL; 4325 np->num_rx_rings = 0; 4326 } 4327 4328 if (np->tx_rings) { 4329 for (i = 0; i < np->num_tx_rings; i++) { 4330 struct tx_ring_info *rp = &np->tx_rings[i]; 4331 4332 niu_free_tx_ring_info(np, rp); 4333 } 4334 kfree(np->tx_rings); 4335 np->tx_rings = NULL; 4336 np->num_tx_rings = 0; 4337 } 4338 } 4339 4340 static int niu_alloc_rx_ring_info(struct niu *np, 4341 struct rx_ring_info *rp) 4342 { 4343 BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64); 4344 4345 rp->rxhash = kcalloc(MAX_RBR_RING_SIZE, sizeof(struct page *), 4346 GFP_KERNEL); 4347 if (!rp->rxhash) 4348 return -ENOMEM; 4349 4350 rp->mbox = np->ops->alloc_coherent(np->device, 4351 sizeof(struct rxdma_mailbox), 4352 &rp->mbox_dma, GFP_KERNEL); 4353 if (!rp->mbox) 4354 return -ENOMEM; 4355 if ((unsigned long)rp->mbox & (64UL - 1)) { 4356 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA mailbox %p\n", 4357 rp->mbox); 4358 return -EINVAL; 4359 } 4360 4361 rp->rcr = np->ops->alloc_coherent(np->device, 4362 MAX_RCR_RING_SIZE * sizeof(__le64), 4363 &rp->rcr_dma, GFP_KERNEL); 4364 if (!rp->rcr) 4365 return -ENOMEM; 4366 if ((unsigned long)rp->rcr & (64UL - 1)) { 4367 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RCR table %p\n", 4368 rp->rcr); 4369 return -EINVAL; 4370 } 4371 rp->rcr_table_size = MAX_RCR_RING_SIZE; 4372 rp->rcr_index = 0; 4373 4374 rp->rbr = np->ops->alloc_coherent(np->device, 4375 MAX_RBR_RING_SIZE * sizeof(__le32), 4376 &rp->rbr_dma, GFP_KERNEL); 4377 if (!rp->rbr) 4378 return -ENOMEM; 4379 if ((unsigned long)rp->rbr & (64UL - 1)) { 4380 netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RBR table %p\n", 4381 rp->rbr); 4382 return -EINVAL; 4383 } 4384 rp->rbr_table_size = MAX_RBR_RING_SIZE; 4385 rp->rbr_index = 0; 4386 rp->rbr_pending = 0; 4387 4388 return 0; 4389 } 4390 4391 static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp) 4392 { 4393 int mtu = np->dev->mtu; 4394 4395 /* These values are recommended by the HW designers for fair 4396 * utilization of DRR amongst the rings. 4397 */ 4398 rp->max_burst = mtu + 32; 4399 if (rp->max_burst > 4096) 4400 rp->max_burst = 4096; 4401 } 4402 4403 static int niu_alloc_tx_ring_info(struct niu *np, 4404 struct tx_ring_info *rp) 4405 { 4406 BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64); 4407 4408 rp->mbox = np->ops->alloc_coherent(np->device, 4409 sizeof(struct txdma_mailbox), 4410 &rp->mbox_dma, GFP_KERNEL); 4411 if (!rp->mbox) 4412 return -ENOMEM; 4413 if ((unsigned long)rp->mbox & (64UL - 1)) { 4414 netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA mailbox %p\n", 4415 rp->mbox); 4416 return -EINVAL; 4417 } 4418 4419 rp->descr = np->ops->alloc_coherent(np->device, 4420 MAX_TX_RING_SIZE * sizeof(__le64), 4421 &rp->descr_dma, GFP_KERNEL); 4422 if (!rp->descr) 4423 return -ENOMEM; 4424 if ((unsigned long)rp->descr & (64UL - 1)) { 4425 netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA descr table %p\n", 4426 rp->descr); 4427 return -EINVAL; 4428 } 4429 4430 rp->pending = MAX_TX_RING_SIZE; 4431 rp->prod = 0; 4432 rp->cons = 0; 4433 rp->wrap_bit = 0; 4434 4435 /* XXX make these configurable... XXX */ 4436 rp->mark_freq = rp->pending / 4; 4437 4438 niu_set_max_burst(np, rp); 4439 4440 return 0; 4441 } 4442 4443 static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp) 4444 { 4445 u16 bss; 4446 4447 bss = min(PAGE_SHIFT, 15); 4448 4449 rp->rbr_block_size = 1 << bss; 4450 rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss); 4451 4452 rp->rbr_sizes[0] = 256; 4453 rp->rbr_sizes[1] = 1024; 4454 if (np->dev->mtu > ETH_DATA_LEN) { 4455 switch (PAGE_SIZE) { 4456 case 4 * 1024: 4457 rp->rbr_sizes[2] = 4096; 4458 break; 4459 4460 default: 4461 rp->rbr_sizes[2] = 8192; 4462 break; 4463 } 4464 } else { 4465 rp->rbr_sizes[2] = 2048; 4466 } 4467 rp->rbr_sizes[3] = rp->rbr_block_size; 4468 } 4469 4470 static int niu_alloc_channels(struct niu *np) 4471 { 4472 struct niu_parent *parent = np->parent; 4473 int first_rx_channel, first_tx_channel; 4474 int num_rx_rings, num_tx_rings; 4475 struct rx_ring_info *rx_rings; 4476 struct tx_ring_info *tx_rings; 4477 int i, port, err; 4478 4479 port = np->port; 4480 first_rx_channel = first_tx_channel = 0; 4481 for (i = 0; i < port; i++) { 4482 first_rx_channel += parent->rxchan_per_port[i]; 4483 first_tx_channel += parent->txchan_per_port[i]; 4484 } 4485 4486 num_rx_rings = parent->rxchan_per_port[port]; 4487 num_tx_rings = parent->txchan_per_port[port]; 4488 4489 rx_rings = kcalloc(num_rx_rings, sizeof(struct rx_ring_info), 4490 GFP_KERNEL); 4491 err = -ENOMEM; 4492 if (!rx_rings) 4493 goto out_err; 4494 4495 np->num_rx_rings = num_rx_rings; 4496 smp_wmb(); 4497 np->rx_rings = rx_rings; 4498 4499 netif_set_real_num_rx_queues(np->dev, num_rx_rings); 4500 4501 for (i = 0; i < np->num_rx_rings; i++) { 4502 struct rx_ring_info *rp = &np->rx_rings[i]; 4503 4504 rp->np = np; 4505 rp->rx_channel = first_rx_channel + i; 4506 4507 err = niu_alloc_rx_ring_info(np, rp); 4508 if (err) 4509 goto out_err; 4510 4511 niu_size_rbr(np, rp); 4512 4513 /* XXX better defaults, configurable, etc... XXX */ 4514 rp->nonsyn_window = 64; 4515 rp->nonsyn_threshold = rp->rcr_table_size - 64; 4516 rp->syn_window = 64; 4517 rp->syn_threshold = rp->rcr_table_size - 64; 4518 rp->rcr_pkt_threshold = 16; 4519 rp->rcr_timeout = 8; 4520 rp->rbr_kick_thresh = RBR_REFILL_MIN; 4521 if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page) 4522 rp->rbr_kick_thresh = rp->rbr_blocks_per_page; 4523 4524 err = niu_rbr_fill(np, rp, GFP_KERNEL); 4525 if (err) 4526 return err; 4527 } 4528 4529 tx_rings = kcalloc(num_tx_rings, sizeof(struct tx_ring_info), 4530 GFP_KERNEL); 4531 err = -ENOMEM; 4532 if (!tx_rings) 4533 goto out_err; 4534 4535 np->num_tx_rings = num_tx_rings; 4536 smp_wmb(); 4537 np->tx_rings = tx_rings; 4538 4539 netif_set_real_num_tx_queues(np->dev, num_tx_rings); 4540 4541 for (i = 0; i < np->num_tx_rings; i++) { 4542 struct tx_ring_info *rp = &np->tx_rings[i]; 4543 4544 rp->np = np; 4545 rp->tx_channel = first_tx_channel + i; 4546 4547 err = niu_alloc_tx_ring_info(np, rp); 4548 if (err) 4549 goto out_err; 4550 } 4551 4552 return 0; 4553 4554 out_err: 4555 niu_free_channels(np); 4556 return err; 4557 } 4558 4559 static int niu_tx_cs_sng_poll(struct niu *np, int channel) 4560 { 4561 int limit = 1000; 4562 4563 while (--limit > 0) { 4564 u64 val = nr64(TX_CS(channel)); 4565 if (val & TX_CS_SNG_STATE) 4566 return 0; 4567 } 4568 return -ENODEV; 4569 } 4570 4571 static int niu_tx_channel_stop(struct niu *np, int channel) 4572 { 4573 u64 val = nr64(TX_CS(channel)); 4574 4575 val |= TX_CS_STOP_N_GO; 4576 nw64(TX_CS(channel), val); 4577 4578 return niu_tx_cs_sng_poll(np, channel); 4579 } 4580 4581 static int niu_tx_cs_reset_poll(struct niu *np, int channel) 4582 { 4583 int limit = 1000; 4584 4585 while (--limit > 0) { 4586 u64 val = nr64(TX_CS(channel)); 4587 if (!(val & TX_CS_RST)) 4588 return 0; 4589 } 4590 return -ENODEV; 4591 } 4592 4593 static int niu_tx_channel_reset(struct niu *np, int channel) 4594 { 4595 u64 val = nr64(TX_CS(channel)); 4596 int err; 4597 4598 val |= TX_CS_RST; 4599 nw64(TX_CS(channel), val); 4600 4601 err = niu_tx_cs_reset_poll(np, channel); 4602 if (!err) 4603 nw64(TX_RING_KICK(channel), 0); 4604 4605 return err; 4606 } 4607 4608 static int niu_tx_channel_lpage_init(struct niu *np, int channel) 4609 { 4610 u64 val; 4611 4612 nw64(TX_LOG_MASK1(channel), 0); 4613 nw64(TX_LOG_VAL1(channel), 0); 4614 nw64(TX_LOG_MASK2(channel), 0); 4615 nw64(TX_LOG_VAL2(channel), 0); 4616 nw64(TX_LOG_PAGE_RELO1(channel), 0); 4617 nw64(TX_LOG_PAGE_RELO2(channel), 0); 4618 nw64(TX_LOG_PAGE_HDL(channel), 0); 4619 4620 val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT; 4621 val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1); 4622 nw64(TX_LOG_PAGE_VLD(channel), val); 4623 4624 /* XXX TXDMA 32bit mode? XXX */ 4625 4626 return 0; 4627 } 4628 4629 static void niu_txc_enable_port(struct niu *np, int on) 4630 { 4631 unsigned long flags; 4632 u64 val, mask; 4633 4634 niu_lock_parent(np, flags); 4635 val = nr64(TXC_CONTROL); 4636 mask = (u64)1 << np->port; 4637 if (on) { 4638 val |= TXC_CONTROL_ENABLE | mask; 4639 } else { 4640 val &= ~mask; 4641 if ((val & ~TXC_CONTROL_ENABLE) == 0) 4642 val &= ~TXC_CONTROL_ENABLE; 4643 } 4644 nw64(TXC_CONTROL, val); 4645 niu_unlock_parent(np, flags); 4646 } 4647 4648 static void niu_txc_set_imask(struct niu *np, u64 imask) 4649 { 4650 unsigned long flags; 4651 u64 val; 4652 4653 niu_lock_parent(np, flags); 4654 val = nr64(TXC_INT_MASK); 4655 val &= ~TXC_INT_MASK_VAL(np->port); 4656 val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port)); 4657 niu_unlock_parent(np, flags); 4658 } 4659 4660 static void niu_txc_port_dma_enable(struct niu *np, int on) 4661 { 4662 u64 val = 0; 4663 4664 if (on) { 4665 int i; 4666 4667 for (i = 0; i < np->num_tx_rings; i++) 4668 val |= (1 << np->tx_rings[i].tx_channel); 4669 } 4670 nw64(TXC_PORT_DMA(np->port), val); 4671 } 4672 4673 static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp) 4674 { 4675 int err, channel = rp->tx_channel; 4676 u64 val, ring_len; 4677 4678 err = niu_tx_channel_stop(np, channel); 4679 if (err) 4680 return err; 4681 4682 err = niu_tx_channel_reset(np, channel); 4683 if (err) 4684 return err; 4685 4686 err = niu_tx_channel_lpage_init(np, channel); 4687 if (err) 4688 return err; 4689 4690 nw64(TXC_DMA_MAX(channel), rp->max_burst); 4691 nw64(TX_ENT_MSK(channel), 0); 4692 4693 if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE | 4694 TX_RNG_CFIG_STADDR)) { 4695 netdev_err(np->dev, "TX ring channel %d DMA addr (%llx) is not aligned\n", 4696 channel, (unsigned long long)rp->descr_dma); 4697 return -EINVAL; 4698 } 4699 4700 /* The length field in TX_RNG_CFIG is measured in 64-byte 4701 * blocks. rp->pending is the number of TX descriptors in 4702 * our ring, 8 bytes each, thus we divide by 8 bytes more 4703 * to get the proper value the chip wants. 4704 */ 4705 ring_len = (rp->pending / 8); 4706 4707 val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) | 4708 rp->descr_dma); 4709 nw64(TX_RNG_CFIG(channel), val); 4710 4711 if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) || 4712 ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) { 4713 netdev_err(np->dev, "TX ring channel %d MBOX addr (%llx) has invalid bits\n", 4714 channel, (unsigned long long)rp->mbox_dma); 4715 return -EINVAL; 4716 } 4717 nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32); 4718 nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR); 4719 4720 nw64(TX_CS(channel), 0); 4721 4722 rp->last_pkt_cnt = 0; 4723 4724 return 0; 4725 } 4726 4727 static void niu_init_rdc_groups(struct niu *np) 4728 { 4729 struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port]; 4730 int i, first_table_num = tp->first_table_num; 4731 4732 for (i = 0; i < tp->num_tables; i++) { 4733 struct rdc_table *tbl = &tp->tables[i]; 4734 int this_table = first_table_num + i; 4735 int slot; 4736 4737 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) 4738 nw64(RDC_TBL(this_table, slot), 4739 tbl->rxdma_channel[slot]); 4740 } 4741 4742 nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]); 4743 } 4744 4745 static void niu_init_drr_weight(struct niu *np) 4746 { 4747 int type = phy_decode(np->parent->port_phy, np->port); 4748 u64 val; 4749 4750 switch (type) { 4751 case PORT_TYPE_10G: 4752 val = PT_DRR_WEIGHT_DEFAULT_10G; 4753 break; 4754 4755 case PORT_TYPE_1G: 4756 default: 4757 val = PT_DRR_WEIGHT_DEFAULT_1G; 4758 break; 4759 } 4760 nw64(PT_DRR_WT(np->port), val); 4761 } 4762 4763 static int niu_init_hostinfo(struct niu *np) 4764 { 4765 struct niu_parent *parent = np->parent; 4766 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; 4767 int i, err, num_alt = niu_num_alt_addr(np); 4768 int first_rdc_table = tp->first_table_num; 4769 4770 err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); 4771 if (err) 4772 return err; 4773 4774 err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); 4775 if (err) 4776 return err; 4777 4778 for (i = 0; i < num_alt; i++) { 4779 err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1); 4780 if (err) 4781 return err; 4782 } 4783 4784 return 0; 4785 } 4786 4787 static int niu_rx_channel_reset(struct niu *np, int channel) 4788 { 4789 return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel), 4790 RXDMA_CFIG1_RST, 1000, 10, 4791 "RXDMA_CFIG1"); 4792 } 4793 4794 static int niu_rx_channel_lpage_init(struct niu *np, int channel) 4795 { 4796 u64 val; 4797 4798 nw64(RX_LOG_MASK1(channel), 0); 4799 nw64(RX_LOG_VAL1(channel), 0); 4800 nw64(RX_LOG_MASK2(channel), 0); 4801 nw64(RX_LOG_VAL2(channel), 0); 4802 nw64(RX_LOG_PAGE_RELO1(channel), 0); 4803 nw64(RX_LOG_PAGE_RELO2(channel), 0); 4804 nw64(RX_LOG_PAGE_HDL(channel), 0); 4805 4806 val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT; 4807 val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1); 4808 nw64(RX_LOG_PAGE_VLD(channel), val); 4809 4810 return 0; 4811 } 4812 4813 static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp) 4814 { 4815 u64 val; 4816 4817 val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) | 4818 ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) | 4819 ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) | 4820 ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT)); 4821 nw64(RDC_RED_PARA(rp->rx_channel), val); 4822 } 4823 4824 static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret) 4825 { 4826 u64 val = 0; 4827 4828 *ret = 0; 4829 switch (rp->rbr_block_size) { 4830 case 4 * 1024: 4831 val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT); 4832 break; 4833 case 8 * 1024: 4834 val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT); 4835 break; 4836 case 16 * 1024: 4837 val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT); 4838 break; 4839 case 32 * 1024: 4840 val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT); 4841 break; 4842 default: 4843 return -EINVAL; 4844 } 4845 val |= RBR_CFIG_B_VLD2; 4846 switch (rp->rbr_sizes[2]) { 4847 case 2 * 1024: 4848 val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT); 4849 break; 4850 case 4 * 1024: 4851 val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT); 4852 break; 4853 case 8 * 1024: 4854 val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT); 4855 break; 4856 case 16 * 1024: 4857 val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT); 4858 break; 4859 4860 default: 4861 return -EINVAL; 4862 } 4863 val |= RBR_CFIG_B_VLD1; 4864 switch (rp->rbr_sizes[1]) { 4865 case 1 * 1024: 4866 val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT); 4867 break; 4868 case 2 * 1024: 4869 val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT); 4870 break; 4871 case 4 * 1024: 4872 val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT); 4873 break; 4874 case 8 * 1024: 4875 val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT); 4876 break; 4877 4878 default: 4879 return -EINVAL; 4880 } 4881 val |= RBR_CFIG_B_VLD0; 4882 switch (rp->rbr_sizes[0]) { 4883 case 256: 4884 val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT); 4885 break; 4886 case 512: 4887 val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT); 4888 break; 4889 case 1 * 1024: 4890 val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT); 4891 break; 4892 case 2 * 1024: 4893 val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT); 4894 break; 4895 4896 default: 4897 return -EINVAL; 4898 } 4899 4900 *ret = val; 4901 return 0; 4902 } 4903 4904 static int niu_enable_rx_channel(struct niu *np, int channel, int on) 4905 { 4906 u64 val = nr64(RXDMA_CFIG1(channel)); 4907 int limit; 4908 4909 if (on) 4910 val |= RXDMA_CFIG1_EN; 4911 else 4912 val &= ~RXDMA_CFIG1_EN; 4913 nw64(RXDMA_CFIG1(channel), val); 4914 4915 limit = 1000; 4916 while (--limit > 0) { 4917 if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST) 4918 break; 4919 udelay(10); 4920 } 4921 if (limit <= 0) 4922 return -ENODEV; 4923 return 0; 4924 } 4925 4926 static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp) 4927 { 4928 int err, channel = rp->rx_channel; 4929 u64 val; 4930 4931 err = niu_rx_channel_reset(np, channel); 4932 if (err) 4933 return err; 4934 4935 err = niu_rx_channel_lpage_init(np, channel); 4936 if (err) 4937 return err; 4938 4939 niu_rx_channel_wred_init(np, rp); 4940 4941 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY); 4942 nw64(RX_DMA_CTL_STAT(channel), 4943 (RX_DMA_CTL_STAT_MEX | 4944 RX_DMA_CTL_STAT_RCRTHRES | 4945 RX_DMA_CTL_STAT_RCRTO | 4946 RX_DMA_CTL_STAT_RBR_EMPTY)); 4947 nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32); 4948 nw64(RXDMA_CFIG2(channel), 4949 ((rp->mbox_dma & RXDMA_CFIG2_MBADDR_L) | 4950 RXDMA_CFIG2_FULL_HDR)); 4951 nw64(RBR_CFIG_A(channel), 4952 ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) | 4953 (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR))); 4954 err = niu_compute_rbr_cfig_b(rp, &val); 4955 if (err) 4956 return err; 4957 nw64(RBR_CFIG_B(channel), val); 4958 nw64(RCRCFIG_A(channel), 4959 ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) | 4960 (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR))); 4961 nw64(RCRCFIG_B(channel), 4962 ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) | 4963 RCRCFIG_B_ENTOUT | 4964 ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT)); 4965 4966 err = niu_enable_rx_channel(np, channel, 1); 4967 if (err) 4968 return err; 4969 4970 nw64(RBR_KICK(channel), rp->rbr_index); 4971 4972 val = nr64(RX_DMA_CTL_STAT(channel)); 4973 val |= RX_DMA_CTL_STAT_RBR_EMPTY; 4974 nw64(RX_DMA_CTL_STAT(channel), val); 4975 4976 return 0; 4977 } 4978 4979 static int niu_init_rx_channels(struct niu *np) 4980 { 4981 unsigned long flags; 4982 u64 seed = jiffies_64; 4983 int err, i; 4984 4985 niu_lock_parent(np, flags); 4986 nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider); 4987 nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL)); 4988 niu_unlock_parent(np, flags); 4989 4990 /* XXX RXDMA 32bit mode? XXX */ 4991 4992 niu_init_rdc_groups(np); 4993 niu_init_drr_weight(np); 4994 4995 err = niu_init_hostinfo(np); 4996 if (err) 4997 return err; 4998 4999 for (i = 0; i < np->num_rx_rings; i++) { 5000 struct rx_ring_info *rp = &np->rx_rings[i]; 5001 5002 err = niu_init_one_rx_channel(np, rp); 5003 if (err) 5004 return err; 5005 } 5006 5007 return 0; 5008 } 5009 5010 static int niu_set_ip_frag_rule(struct niu *np) 5011 { 5012 struct niu_parent *parent = np->parent; 5013 struct niu_classifier *cp = &np->clas; 5014 struct niu_tcam_entry *tp; 5015 int index, err; 5016 5017 index = cp->tcam_top; 5018 tp = &parent->tcam[index]; 5019 5020 /* Note that the noport bit is the same in both ipv4 and 5021 * ipv6 format TCAM entries. 5022 */ 5023 memset(tp, 0, sizeof(*tp)); 5024 tp->key[1] = TCAM_V4KEY1_NOPORT; 5025 tp->key_mask[1] = TCAM_V4KEY1_NOPORT; 5026 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | 5027 ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT)); 5028 err = tcam_write(np, index, tp->key, tp->key_mask); 5029 if (err) 5030 return err; 5031 err = tcam_assoc_write(np, index, tp->assoc_data); 5032 if (err) 5033 return err; 5034 tp->valid = 1; 5035 cp->tcam_valid_entries++; 5036 5037 return 0; 5038 } 5039 5040 static int niu_init_classifier_hw(struct niu *np) 5041 { 5042 struct niu_parent *parent = np->parent; 5043 struct niu_classifier *cp = &np->clas; 5044 int i, err; 5045 5046 nw64(H1POLY, cp->h1_init); 5047 nw64(H2POLY, cp->h2_init); 5048 5049 err = niu_init_hostinfo(np); 5050 if (err) 5051 return err; 5052 5053 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) { 5054 struct niu_vlan_rdc *vp = &cp->vlan_mappings[i]; 5055 5056 vlan_tbl_write(np, i, np->port, 5057 vp->vlan_pref, vp->rdc_num); 5058 } 5059 5060 for (i = 0; i < cp->num_alt_mac_mappings; i++) { 5061 struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i]; 5062 5063 err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num, 5064 ap->rdc_num, ap->mac_pref); 5065 if (err) 5066 return err; 5067 } 5068 5069 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { 5070 int index = i - CLASS_CODE_USER_PROG1; 5071 5072 err = niu_set_tcam_key(np, i, parent->tcam_key[index]); 5073 if (err) 5074 return err; 5075 err = niu_set_flow_key(np, i, parent->flow_key[index]); 5076 if (err) 5077 return err; 5078 } 5079 5080 err = niu_set_ip_frag_rule(np); 5081 if (err) 5082 return err; 5083 5084 tcam_enable(np, 1); 5085 5086 return 0; 5087 } 5088 5089 static int niu_zcp_write(struct niu *np, int index, u64 *data) 5090 { 5091 nw64(ZCP_RAM_DATA0, data[0]); 5092 nw64(ZCP_RAM_DATA1, data[1]); 5093 nw64(ZCP_RAM_DATA2, data[2]); 5094 nw64(ZCP_RAM_DATA3, data[3]); 5095 nw64(ZCP_RAM_DATA4, data[4]); 5096 nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL); 5097 nw64(ZCP_RAM_ACC, 5098 (ZCP_RAM_ACC_WRITE | 5099 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | 5100 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); 5101 5102 return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, 5103 1000, 100); 5104 } 5105 5106 static int niu_zcp_read(struct niu *np, int index, u64 *data) 5107 { 5108 int err; 5109 5110 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, 5111 1000, 100); 5112 if (err) { 5113 netdev_err(np->dev, "ZCP read busy won't clear, ZCP_RAM_ACC[%llx]\n", 5114 (unsigned long long)nr64(ZCP_RAM_ACC)); 5115 return err; 5116 } 5117 5118 nw64(ZCP_RAM_ACC, 5119 (ZCP_RAM_ACC_READ | 5120 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | 5121 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); 5122 5123 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, 5124 1000, 100); 5125 if (err) { 5126 netdev_err(np->dev, "ZCP read busy2 won't clear, ZCP_RAM_ACC[%llx]\n", 5127 (unsigned long long)nr64(ZCP_RAM_ACC)); 5128 return err; 5129 } 5130 5131 data[0] = nr64(ZCP_RAM_DATA0); 5132 data[1] = nr64(ZCP_RAM_DATA1); 5133 data[2] = nr64(ZCP_RAM_DATA2); 5134 data[3] = nr64(ZCP_RAM_DATA3); 5135 data[4] = nr64(ZCP_RAM_DATA4); 5136 5137 return 0; 5138 } 5139 5140 static void niu_zcp_cfifo_reset(struct niu *np) 5141 { 5142 u64 val = nr64(RESET_CFIFO); 5143 5144 val |= RESET_CFIFO_RST(np->port); 5145 nw64(RESET_CFIFO, val); 5146 udelay(10); 5147 5148 val &= ~RESET_CFIFO_RST(np->port); 5149 nw64(RESET_CFIFO, val); 5150 } 5151 5152 static int niu_init_zcp(struct niu *np) 5153 { 5154 u64 data[5], rbuf[5]; 5155 int i, max, err; 5156 5157 if (np->parent->plat_type != PLAT_TYPE_NIU) { 5158 if (np->port == 0 || np->port == 1) 5159 max = ATLAS_P0_P1_CFIFO_ENTRIES; 5160 else 5161 max = ATLAS_P2_P3_CFIFO_ENTRIES; 5162 } else 5163 max = NIU_CFIFO_ENTRIES; 5164 5165 data[0] = 0; 5166 data[1] = 0; 5167 data[2] = 0; 5168 data[3] = 0; 5169 data[4] = 0; 5170 5171 for (i = 0; i < max; i++) { 5172 err = niu_zcp_write(np, i, data); 5173 if (err) 5174 return err; 5175 err = niu_zcp_read(np, i, rbuf); 5176 if (err) 5177 return err; 5178 } 5179 5180 niu_zcp_cfifo_reset(np); 5181 nw64(CFIFO_ECC(np->port), 0); 5182 nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL); 5183 (void) nr64(ZCP_INT_STAT); 5184 nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL); 5185 5186 return 0; 5187 } 5188 5189 static void niu_ipp_write(struct niu *np, int index, u64 *data) 5190 { 5191 u64 val = nr64_ipp(IPP_CFIG); 5192 5193 nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W); 5194 nw64_ipp(IPP_DFIFO_WR_PTR, index); 5195 nw64_ipp(IPP_DFIFO_WR0, data[0]); 5196 nw64_ipp(IPP_DFIFO_WR1, data[1]); 5197 nw64_ipp(IPP_DFIFO_WR2, data[2]); 5198 nw64_ipp(IPP_DFIFO_WR3, data[3]); 5199 nw64_ipp(IPP_DFIFO_WR4, data[4]); 5200 nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W); 5201 } 5202 5203 static void niu_ipp_read(struct niu *np, int index, u64 *data) 5204 { 5205 nw64_ipp(IPP_DFIFO_RD_PTR, index); 5206 data[0] = nr64_ipp(IPP_DFIFO_RD0); 5207 data[1] = nr64_ipp(IPP_DFIFO_RD1); 5208 data[2] = nr64_ipp(IPP_DFIFO_RD2); 5209 data[3] = nr64_ipp(IPP_DFIFO_RD3); 5210 data[4] = nr64_ipp(IPP_DFIFO_RD4); 5211 } 5212 5213 static int niu_ipp_reset(struct niu *np) 5214 { 5215 return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST, 5216 1000, 100, "IPP_CFIG"); 5217 } 5218 5219 static int niu_init_ipp(struct niu *np) 5220 { 5221 u64 data[5], rbuf[5], val; 5222 int i, max, err; 5223 5224 if (np->parent->plat_type != PLAT_TYPE_NIU) { 5225 if (np->port == 0 || np->port == 1) 5226 max = ATLAS_P0_P1_DFIFO_ENTRIES; 5227 else 5228 max = ATLAS_P2_P3_DFIFO_ENTRIES; 5229 } else 5230 max = NIU_DFIFO_ENTRIES; 5231 5232 data[0] = 0; 5233 data[1] = 0; 5234 data[2] = 0; 5235 data[3] = 0; 5236 data[4] = 0; 5237 5238 for (i = 0; i < max; i++) { 5239 niu_ipp_write(np, i, data); 5240 niu_ipp_read(np, i, rbuf); 5241 } 5242 5243 (void) nr64_ipp(IPP_INT_STAT); 5244 (void) nr64_ipp(IPP_INT_STAT); 5245 5246 err = niu_ipp_reset(np); 5247 if (err) 5248 return err; 5249 5250 (void) nr64_ipp(IPP_PKT_DIS); 5251 (void) nr64_ipp(IPP_BAD_CS_CNT); 5252 (void) nr64_ipp(IPP_ECC); 5253 5254 (void) nr64_ipp(IPP_INT_STAT); 5255 5256 nw64_ipp(IPP_MSK, ~IPP_MSK_ALL); 5257 5258 val = nr64_ipp(IPP_CFIG); 5259 val &= ~IPP_CFIG_IP_MAX_PKT; 5260 val |= (IPP_CFIG_IPP_ENABLE | 5261 IPP_CFIG_DFIFO_ECC_EN | 5262 IPP_CFIG_DROP_BAD_CRC | 5263 IPP_CFIG_CKSUM_EN | 5264 (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT)); 5265 nw64_ipp(IPP_CFIG, val); 5266 5267 return 0; 5268 } 5269 5270 static void niu_handle_led(struct niu *np, int status) 5271 { 5272 u64 val; 5273 val = nr64_mac(XMAC_CONFIG); 5274 5275 if ((np->flags & NIU_FLAGS_10G) != 0 && 5276 (np->flags & NIU_FLAGS_FIBER) != 0) { 5277 if (status) { 5278 val |= XMAC_CONFIG_LED_POLARITY; 5279 val &= ~XMAC_CONFIG_FORCE_LED_ON; 5280 } else { 5281 val |= XMAC_CONFIG_FORCE_LED_ON; 5282 val &= ~XMAC_CONFIG_LED_POLARITY; 5283 } 5284 } 5285 5286 nw64_mac(XMAC_CONFIG, val); 5287 } 5288 5289 static void niu_init_xif_xmac(struct niu *np) 5290 { 5291 struct niu_link_config *lp = &np->link_config; 5292 u64 val; 5293 5294 if (np->flags & NIU_FLAGS_XCVR_SERDES) { 5295 val = nr64(MIF_CONFIG); 5296 val |= MIF_CONFIG_ATCA_GE; 5297 nw64(MIF_CONFIG, val); 5298 } 5299 5300 val = nr64_mac(XMAC_CONFIG); 5301 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; 5302 5303 val |= XMAC_CONFIG_TX_OUTPUT_EN; 5304 5305 if (lp->loopback_mode == LOOPBACK_MAC) { 5306 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; 5307 val |= XMAC_CONFIG_LOOPBACK; 5308 } else { 5309 val &= ~XMAC_CONFIG_LOOPBACK; 5310 } 5311 5312 if (np->flags & NIU_FLAGS_10G) { 5313 val &= ~XMAC_CONFIG_LFS_DISABLE; 5314 } else { 5315 val |= XMAC_CONFIG_LFS_DISABLE; 5316 if (!(np->flags & NIU_FLAGS_FIBER) && 5317 !(np->flags & NIU_FLAGS_XCVR_SERDES)) 5318 val |= XMAC_CONFIG_1G_PCS_BYPASS; 5319 else 5320 val &= ~XMAC_CONFIG_1G_PCS_BYPASS; 5321 } 5322 5323 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; 5324 5325 if (lp->active_speed == SPEED_100) 5326 val |= XMAC_CONFIG_SEL_CLK_25MHZ; 5327 else 5328 val &= ~XMAC_CONFIG_SEL_CLK_25MHZ; 5329 5330 nw64_mac(XMAC_CONFIG, val); 5331 5332 val = nr64_mac(XMAC_CONFIG); 5333 val &= ~XMAC_CONFIG_MODE_MASK; 5334 if (np->flags & NIU_FLAGS_10G) { 5335 val |= XMAC_CONFIG_MODE_XGMII; 5336 } else { 5337 if (lp->active_speed == SPEED_1000) 5338 val |= XMAC_CONFIG_MODE_GMII; 5339 else 5340 val |= XMAC_CONFIG_MODE_MII; 5341 } 5342 5343 nw64_mac(XMAC_CONFIG, val); 5344 } 5345 5346 static void niu_init_xif_bmac(struct niu *np) 5347 { 5348 struct niu_link_config *lp = &np->link_config; 5349 u64 val; 5350 5351 val = BMAC_XIF_CONFIG_TX_OUTPUT_EN; 5352 5353 if (lp->loopback_mode == LOOPBACK_MAC) 5354 val |= BMAC_XIF_CONFIG_MII_LOOPBACK; 5355 else 5356 val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK; 5357 5358 if (lp->active_speed == SPEED_1000) 5359 val |= BMAC_XIF_CONFIG_GMII_MODE; 5360 else 5361 val &= ~BMAC_XIF_CONFIG_GMII_MODE; 5362 5363 val &= ~(BMAC_XIF_CONFIG_LINK_LED | 5364 BMAC_XIF_CONFIG_LED_POLARITY); 5365 5366 if (!(np->flags & NIU_FLAGS_10G) && 5367 !(np->flags & NIU_FLAGS_FIBER) && 5368 lp->active_speed == SPEED_100) 5369 val |= BMAC_XIF_CONFIG_25MHZ_CLOCK; 5370 else 5371 val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK; 5372 5373 nw64_mac(BMAC_XIF_CONFIG, val); 5374 } 5375 5376 static void niu_init_xif(struct niu *np) 5377 { 5378 if (np->flags & NIU_FLAGS_XMAC) 5379 niu_init_xif_xmac(np); 5380 else 5381 niu_init_xif_bmac(np); 5382 } 5383 5384 static void niu_pcs_mii_reset(struct niu *np) 5385 { 5386 int limit = 1000; 5387 u64 val = nr64_pcs(PCS_MII_CTL); 5388 val |= PCS_MII_CTL_RST; 5389 nw64_pcs(PCS_MII_CTL, val); 5390 while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) { 5391 udelay(100); 5392 val = nr64_pcs(PCS_MII_CTL); 5393 } 5394 } 5395 5396 static void niu_xpcs_reset(struct niu *np) 5397 { 5398 int limit = 1000; 5399 u64 val = nr64_xpcs(XPCS_CONTROL1); 5400 val |= XPCS_CONTROL1_RESET; 5401 nw64_xpcs(XPCS_CONTROL1, val); 5402 while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) { 5403 udelay(100); 5404 val = nr64_xpcs(XPCS_CONTROL1); 5405 } 5406 } 5407 5408 static int niu_init_pcs(struct niu *np) 5409 { 5410 struct niu_link_config *lp = &np->link_config; 5411 u64 val; 5412 5413 switch (np->flags & (NIU_FLAGS_10G | 5414 NIU_FLAGS_FIBER | 5415 NIU_FLAGS_XCVR_SERDES)) { 5416 case NIU_FLAGS_FIBER: 5417 /* 1G fiber */ 5418 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); 5419 nw64_pcs(PCS_DPATH_MODE, 0); 5420 niu_pcs_mii_reset(np); 5421 break; 5422 5423 case NIU_FLAGS_10G: 5424 case NIU_FLAGS_10G | NIU_FLAGS_FIBER: 5425 case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: 5426 /* 10G SERDES */ 5427 if (!(np->flags & NIU_FLAGS_XMAC)) 5428 return -EINVAL; 5429 5430 /* 10G copper or fiber */ 5431 val = nr64_mac(XMAC_CONFIG); 5432 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; 5433 nw64_mac(XMAC_CONFIG, val); 5434 5435 niu_xpcs_reset(np); 5436 5437 val = nr64_xpcs(XPCS_CONTROL1); 5438 if (lp->loopback_mode == LOOPBACK_PHY) 5439 val |= XPCS_CONTROL1_LOOPBACK; 5440 else 5441 val &= ~XPCS_CONTROL1_LOOPBACK; 5442 nw64_xpcs(XPCS_CONTROL1, val); 5443 5444 nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0); 5445 (void) nr64_xpcs(XPCS_SYMERR_CNT01); 5446 (void) nr64_xpcs(XPCS_SYMERR_CNT23); 5447 break; 5448 5449 5450 case NIU_FLAGS_XCVR_SERDES: 5451 /* 1G SERDES */ 5452 niu_pcs_mii_reset(np); 5453 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); 5454 nw64_pcs(PCS_DPATH_MODE, 0); 5455 break; 5456 5457 case 0: 5458 /* 1G copper */ 5459 case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: 5460 /* 1G RGMII FIBER */ 5461 nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII); 5462 niu_pcs_mii_reset(np); 5463 break; 5464 5465 default: 5466 return -EINVAL; 5467 } 5468 5469 return 0; 5470 } 5471 5472 static int niu_reset_tx_xmac(struct niu *np) 5473 { 5474 return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST, 5475 (XTXMAC_SW_RST_REG_RS | 5476 XTXMAC_SW_RST_SOFT_RST), 5477 1000, 100, "XTXMAC_SW_RST"); 5478 } 5479 5480 static int niu_reset_tx_bmac(struct niu *np) 5481 { 5482 int limit; 5483 5484 nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET); 5485 limit = 1000; 5486 while (--limit >= 0) { 5487 if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET)) 5488 break; 5489 udelay(100); 5490 } 5491 if (limit < 0) { 5492 dev_err(np->device, "Port %u TX BMAC would not reset, BTXMAC_SW_RST[%llx]\n", 5493 np->port, 5494 (unsigned long long) nr64_mac(BTXMAC_SW_RST)); 5495 return -ENODEV; 5496 } 5497 5498 return 0; 5499 } 5500 5501 static int niu_reset_tx_mac(struct niu *np) 5502 { 5503 if (np->flags & NIU_FLAGS_XMAC) 5504 return niu_reset_tx_xmac(np); 5505 else 5506 return niu_reset_tx_bmac(np); 5507 } 5508 5509 static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max) 5510 { 5511 u64 val; 5512 5513 val = nr64_mac(XMAC_MIN); 5514 val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE | 5515 XMAC_MIN_RX_MIN_PKT_SIZE); 5516 val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT); 5517 val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT); 5518 nw64_mac(XMAC_MIN, val); 5519 5520 nw64_mac(XMAC_MAX, max); 5521 5522 nw64_mac(XTXMAC_STAT_MSK, ~(u64)0); 5523 5524 val = nr64_mac(XMAC_IPG); 5525 if (np->flags & NIU_FLAGS_10G) { 5526 val &= ~XMAC_IPG_IPG_XGMII; 5527 val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT); 5528 } else { 5529 val &= ~XMAC_IPG_IPG_MII_GMII; 5530 val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT); 5531 } 5532 nw64_mac(XMAC_IPG, val); 5533 5534 val = nr64_mac(XMAC_CONFIG); 5535 val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC | 5536 XMAC_CONFIG_STRETCH_MODE | 5537 XMAC_CONFIG_VAR_MIN_IPG_EN | 5538 XMAC_CONFIG_TX_ENABLE); 5539 nw64_mac(XMAC_CONFIG, val); 5540 5541 nw64_mac(TXMAC_FRM_CNT, 0); 5542 nw64_mac(TXMAC_BYTE_CNT, 0); 5543 } 5544 5545 static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max) 5546 { 5547 u64 val; 5548 5549 nw64_mac(BMAC_MIN_FRAME, min); 5550 nw64_mac(BMAC_MAX_FRAME, max); 5551 5552 nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0); 5553 nw64_mac(BMAC_CTRL_TYPE, 0x8808); 5554 nw64_mac(BMAC_PREAMBLE_SIZE, 7); 5555 5556 val = nr64_mac(BTXMAC_CONFIG); 5557 val &= ~(BTXMAC_CONFIG_FCS_DISABLE | 5558 BTXMAC_CONFIG_ENABLE); 5559 nw64_mac(BTXMAC_CONFIG, val); 5560 } 5561 5562 static void niu_init_tx_mac(struct niu *np) 5563 { 5564 u64 min, max; 5565 5566 min = 64; 5567 if (np->dev->mtu > ETH_DATA_LEN) 5568 max = 9216; 5569 else 5570 max = 1522; 5571 5572 /* The XMAC_MIN register only accepts values for TX min which 5573 * have the low 3 bits cleared. 5574 */ 5575 BUG_ON(min & 0x7); 5576 5577 if (np->flags & NIU_FLAGS_XMAC) 5578 niu_init_tx_xmac(np, min, max); 5579 else 5580 niu_init_tx_bmac(np, min, max); 5581 } 5582 5583 static int niu_reset_rx_xmac(struct niu *np) 5584 { 5585 int limit; 5586 5587 nw64_mac(XRXMAC_SW_RST, 5588 XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST); 5589 limit = 1000; 5590 while (--limit >= 0) { 5591 if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS | 5592 XRXMAC_SW_RST_SOFT_RST))) 5593 break; 5594 udelay(100); 5595 } 5596 if (limit < 0) { 5597 dev_err(np->device, "Port %u RX XMAC would not reset, XRXMAC_SW_RST[%llx]\n", 5598 np->port, 5599 (unsigned long long) nr64_mac(XRXMAC_SW_RST)); 5600 return -ENODEV; 5601 } 5602 5603 return 0; 5604 } 5605 5606 static int niu_reset_rx_bmac(struct niu *np) 5607 { 5608 int limit; 5609 5610 nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET); 5611 limit = 1000; 5612 while (--limit >= 0) { 5613 if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET)) 5614 break; 5615 udelay(100); 5616 } 5617 if (limit < 0) { 5618 dev_err(np->device, "Port %u RX BMAC would not reset, BRXMAC_SW_RST[%llx]\n", 5619 np->port, 5620 (unsigned long long) nr64_mac(BRXMAC_SW_RST)); 5621 return -ENODEV; 5622 } 5623 5624 return 0; 5625 } 5626 5627 static int niu_reset_rx_mac(struct niu *np) 5628 { 5629 if (np->flags & NIU_FLAGS_XMAC) 5630 return niu_reset_rx_xmac(np); 5631 else 5632 return niu_reset_rx_bmac(np); 5633 } 5634 5635 static void niu_init_rx_xmac(struct niu *np) 5636 { 5637 struct niu_parent *parent = np->parent; 5638 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; 5639 int first_rdc_table = tp->first_table_num; 5640 unsigned long i; 5641 u64 val; 5642 5643 nw64_mac(XMAC_ADD_FILT0, 0); 5644 nw64_mac(XMAC_ADD_FILT1, 0); 5645 nw64_mac(XMAC_ADD_FILT2, 0); 5646 nw64_mac(XMAC_ADD_FILT12_MASK, 0); 5647 nw64_mac(XMAC_ADD_FILT00_MASK, 0); 5648 for (i = 0; i < MAC_NUM_HASH; i++) 5649 nw64_mac(XMAC_HASH_TBL(i), 0); 5650 nw64_mac(XRXMAC_STAT_MSK, ~(u64)0); 5651 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); 5652 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); 5653 5654 val = nr64_mac(XMAC_CONFIG); 5655 val &= ~(XMAC_CONFIG_RX_MAC_ENABLE | 5656 XMAC_CONFIG_PROMISCUOUS | 5657 XMAC_CONFIG_PROMISC_GROUP | 5658 XMAC_CONFIG_ERR_CHK_DIS | 5659 XMAC_CONFIG_RX_CRC_CHK_DIS | 5660 XMAC_CONFIG_RESERVED_MULTICAST | 5661 XMAC_CONFIG_RX_CODEV_CHK_DIS | 5662 XMAC_CONFIG_ADDR_FILTER_EN | 5663 XMAC_CONFIG_RCV_PAUSE_ENABLE | 5664 XMAC_CONFIG_STRIP_CRC | 5665 XMAC_CONFIG_PASS_FLOW_CTRL | 5666 XMAC_CONFIG_MAC2IPP_PKT_CNT_EN); 5667 val |= (XMAC_CONFIG_HASH_FILTER_EN); 5668 nw64_mac(XMAC_CONFIG, val); 5669 5670 nw64_mac(RXMAC_BT_CNT, 0); 5671 nw64_mac(RXMAC_BC_FRM_CNT, 0); 5672 nw64_mac(RXMAC_MC_FRM_CNT, 0); 5673 nw64_mac(RXMAC_FRAG_CNT, 0); 5674 nw64_mac(RXMAC_HIST_CNT1, 0); 5675 nw64_mac(RXMAC_HIST_CNT2, 0); 5676 nw64_mac(RXMAC_HIST_CNT3, 0); 5677 nw64_mac(RXMAC_HIST_CNT4, 0); 5678 nw64_mac(RXMAC_HIST_CNT5, 0); 5679 nw64_mac(RXMAC_HIST_CNT6, 0); 5680 nw64_mac(RXMAC_HIST_CNT7, 0); 5681 nw64_mac(RXMAC_MPSZER_CNT, 0); 5682 nw64_mac(RXMAC_CRC_ER_CNT, 0); 5683 nw64_mac(RXMAC_CD_VIO_CNT, 0); 5684 nw64_mac(LINK_FAULT_CNT, 0); 5685 } 5686 5687 static void niu_init_rx_bmac(struct niu *np) 5688 { 5689 struct niu_parent *parent = np->parent; 5690 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; 5691 int first_rdc_table = tp->first_table_num; 5692 unsigned long i; 5693 u64 val; 5694 5695 nw64_mac(BMAC_ADD_FILT0, 0); 5696 nw64_mac(BMAC_ADD_FILT1, 0); 5697 nw64_mac(BMAC_ADD_FILT2, 0); 5698 nw64_mac(BMAC_ADD_FILT12_MASK, 0); 5699 nw64_mac(BMAC_ADD_FILT00_MASK, 0); 5700 for (i = 0; i < MAC_NUM_HASH; i++) 5701 nw64_mac(BMAC_HASH_TBL(i), 0); 5702 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); 5703 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); 5704 nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0); 5705 5706 val = nr64_mac(BRXMAC_CONFIG); 5707 val &= ~(BRXMAC_CONFIG_ENABLE | 5708 BRXMAC_CONFIG_STRIP_PAD | 5709 BRXMAC_CONFIG_STRIP_FCS | 5710 BRXMAC_CONFIG_PROMISC | 5711 BRXMAC_CONFIG_PROMISC_GRP | 5712 BRXMAC_CONFIG_ADDR_FILT_EN | 5713 BRXMAC_CONFIG_DISCARD_DIS); 5714 val |= (BRXMAC_CONFIG_HASH_FILT_EN); 5715 nw64_mac(BRXMAC_CONFIG, val); 5716 5717 val = nr64_mac(BMAC_ADDR_CMPEN); 5718 val |= BMAC_ADDR_CMPEN_EN0; 5719 nw64_mac(BMAC_ADDR_CMPEN, val); 5720 } 5721 5722 static void niu_init_rx_mac(struct niu *np) 5723 { 5724 niu_set_primary_mac(np, np->dev->dev_addr); 5725 5726 if (np->flags & NIU_FLAGS_XMAC) 5727 niu_init_rx_xmac(np); 5728 else 5729 niu_init_rx_bmac(np); 5730 } 5731 5732 static void niu_enable_tx_xmac(struct niu *np, int on) 5733 { 5734 u64 val = nr64_mac(XMAC_CONFIG); 5735 5736 if (on) 5737 val |= XMAC_CONFIG_TX_ENABLE; 5738 else 5739 val &= ~XMAC_CONFIG_TX_ENABLE; 5740 nw64_mac(XMAC_CONFIG, val); 5741 } 5742 5743 static void niu_enable_tx_bmac(struct niu *np, int on) 5744 { 5745 u64 val = nr64_mac(BTXMAC_CONFIG); 5746 5747 if (on) 5748 val |= BTXMAC_CONFIG_ENABLE; 5749 else 5750 val &= ~BTXMAC_CONFIG_ENABLE; 5751 nw64_mac(BTXMAC_CONFIG, val); 5752 } 5753 5754 static void niu_enable_tx_mac(struct niu *np, int on) 5755 { 5756 if (np->flags & NIU_FLAGS_XMAC) 5757 niu_enable_tx_xmac(np, on); 5758 else 5759 niu_enable_tx_bmac(np, on); 5760 } 5761 5762 static void niu_enable_rx_xmac(struct niu *np, int on) 5763 { 5764 u64 val = nr64_mac(XMAC_CONFIG); 5765 5766 val &= ~(XMAC_CONFIG_HASH_FILTER_EN | 5767 XMAC_CONFIG_PROMISCUOUS); 5768 5769 if (np->flags & NIU_FLAGS_MCAST) 5770 val |= XMAC_CONFIG_HASH_FILTER_EN; 5771 if (np->flags & NIU_FLAGS_PROMISC) 5772 val |= XMAC_CONFIG_PROMISCUOUS; 5773 5774 if (on) 5775 val |= XMAC_CONFIG_RX_MAC_ENABLE; 5776 else 5777 val &= ~XMAC_CONFIG_RX_MAC_ENABLE; 5778 nw64_mac(XMAC_CONFIG, val); 5779 } 5780 5781 static void niu_enable_rx_bmac(struct niu *np, int on) 5782 { 5783 u64 val = nr64_mac(BRXMAC_CONFIG); 5784 5785 val &= ~(BRXMAC_CONFIG_HASH_FILT_EN | 5786 BRXMAC_CONFIG_PROMISC); 5787 5788 if (np->flags & NIU_FLAGS_MCAST) 5789 val |= BRXMAC_CONFIG_HASH_FILT_EN; 5790 if (np->flags & NIU_FLAGS_PROMISC) 5791 val |= BRXMAC_CONFIG_PROMISC; 5792 5793 if (on) 5794 val |= BRXMAC_CONFIG_ENABLE; 5795 else 5796 val &= ~BRXMAC_CONFIG_ENABLE; 5797 nw64_mac(BRXMAC_CONFIG, val); 5798 } 5799 5800 static void niu_enable_rx_mac(struct niu *np, int on) 5801 { 5802 if (np->flags & NIU_FLAGS_XMAC) 5803 niu_enable_rx_xmac(np, on); 5804 else 5805 niu_enable_rx_bmac(np, on); 5806 } 5807 5808 static int niu_init_mac(struct niu *np) 5809 { 5810 int err; 5811 5812 niu_init_xif(np); 5813 err = niu_init_pcs(np); 5814 if (err) 5815 return err; 5816 5817 err = niu_reset_tx_mac(np); 5818 if (err) 5819 return err; 5820 niu_init_tx_mac(np); 5821 err = niu_reset_rx_mac(np); 5822 if (err) 5823 return err; 5824 niu_init_rx_mac(np); 5825 5826 /* This looks hookey but the RX MAC reset we just did will 5827 * undo some of the state we setup in niu_init_tx_mac() so we 5828 * have to call it again. In particular, the RX MAC reset will 5829 * set the XMAC_MAX register back to it's default value. 5830 */ 5831 niu_init_tx_mac(np); 5832 niu_enable_tx_mac(np, 1); 5833 5834 niu_enable_rx_mac(np, 1); 5835 5836 return 0; 5837 } 5838 5839 static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp) 5840 { 5841 (void) niu_tx_channel_stop(np, rp->tx_channel); 5842 } 5843 5844 static void niu_stop_tx_channels(struct niu *np) 5845 { 5846 int i; 5847 5848 for (i = 0; i < np->num_tx_rings; i++) { 5849 struct tx_ring_info *rp = &np->tx_rings[i]; 5850 5851 niu_stop_one_tx_channel(np, rp); 5852 } 5853 } 5854 5855 static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp) 5856 { 5857 (void) niu_tx_channel_reset(np, rp->tx_channel); 5858 } 5859 5860 static void niu_reset_tx_channels(struct niu *np) 5861 { 5862 int i; 5863 5864 for (i = 0; i < np->num_tx_rings; i++) { 5865 struct tx_ring_info *rp = &np->tx_rings[i]; 5866 5867 niu_reset_one_tx_channel(np, rp); 5868 } 5869 } 5870 5871 static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp) 5872 { 5873 (void) niu_enable_rx_channel(np, rp->rx_channel, 0); 5874 } 5875 5876 static void niu_stop_rx_channels(struct niu *np) 5877 { 5878 int i; 5879 5880 for (i = 0; i < np->num_rx_rings; i++) { 5881 struct rx_ring_info *rp = &np->rx_rings[i]; 5882 5883 niu_stop_one_rx_channel(np, rp); 5884 } 5885 } 5886 5887 static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp) 5888 { 5889 int channel = rp->rx_channel; 5890 5891 (void) niu_rx_channel_reset(np, channel); 5892 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL); 5893 nw64(RX_DMA_CTL_STAT(channel), 0); 5894 (void) niu_enable_rx_channel(np, channel, 0); 5895 } 5896 5897 static void niu_reset_rx_channels(struct niu *np) 5898 { 5899 int i; 5900 5901 for (i = 0; i < np->num_rx_rings; i++) { 5902 struct rx_ring_info *rp = &np->rx_rings[i]; 5903 5904 niu_reset_one_rx_channel(np, rp); 5905 } 5906 } 5907 5908 static void niu_disable_ipp(struct niu *np) 5909 { 5910 u64 rd, wr, val; 5911 int limit; 5912 5913 rd = nr64_ipp(IPP_DFIFO_RD_PTR); 5914 wr = nr64_ipp(IPP_DFIFO_WR_PTR); 5915 limit = 100; 5916 while (--limit >= 0 && (rd != wr)) { 5917 rd = nr64_ipp(IPP_DFIFO_RD_PTR); 5918 wr = nr64_ipp(IPP_DFIFO_WR_PTR); 5919 } 5920 if (limit < 0 && 5921 (rd != 0 && wr != 1)) { 5922 netdev_err(np->dev, "IPP would not quiesce, rd_ptr[%llx] wr_ptr[%llx]\n", 5923 (unsigned long long)nr64_ipp(IPP_DFIFO_RD_PTR), 5924 (unsigned long long)nr64_ipp(IPP_DFIFO_WR_PTR)); 5925 } 5926 5927 val = nr64_ipp(IPP_CFIG); 5928 val &= ~(IPP_CFIG_IPP_ENABLE | 5929 IPP_CFIG_DFIFO_ECC_EN | 5930 IPP_CFIG_DROP_BAD_CRC | 5931 IPP_CFIG_CKSUM_EN); 5932 nw64_ipp(IPP_CFIG, val); 5933 5934 (void) niu_ipp_reset(np); 5935 } 5936 5937 static int niu_init_hw(struct niu *np) 5938 { 5939 int i, err; 5940 5941 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TXC\n"); 5942 niu_txc_enable_port(np, 1); 5943 niu_txc_port_dma_enable(np, 1); 5944 niu_txc_set_imask(np, 0); 5945 5946 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TX channels\n"); 5947 for (i = 0; i < np->num_tx_rings; i++) { 5948 struct tx_ring_info *rp = &np->tx_rings[i]; 5949 5950 err = niu_init_one_tx_channel(np, rp); 5951 if (err) 5952 return err; 5953 } 5954 5955 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize RX channels\n"); 5956 err = niu_init_rx_channels(np); 5957 if (err) 5958 goto out_uninit_tx_channels; 5959 5960 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize classifier\n"); 5961 err = niu_init_classifier_hw(np); 5962 if (err) 5963 goto out_uninit_rx_channels; 5964 5965 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize ZCP\n"); 5966 err = niu_init_zcp(np); 5967 if (err) 5968 goto out_uninit_rx_channels; 5969 5970 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize IPP\n"); 5971 err = niu_init_ipp(np); 5972 if (err) 5973 goto out_uninit_rx_channels; 5974 5975 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize MAC\n"); 5976 err = niu_init_mac(np); 5977 if (err) 5978 goto out_uninit_ipp; 5979 5980 return 0; 5981 5982 out_uninit_ipp: 5983 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit IPP\n"); 5984 niu_disable_ipp(np); 5985 5986 out_uninit_rx_channels: 5987 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit RX channels\n"); 5988 niu_stop_rx_channels(np); 5989 niu_reset_rx_channels(np); 5990 5991 out_uninit_tx_channels: 5992 netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit TX channels\n"); 5993 niu_stop_tx_channels(np); 5994 niu_reset_tx_channels(np); 5995 5996 return err; 5997 } 5998 5999 static void niu_stop_hw(struct niu *np) 6000 { 6001 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable interrupts\n"); 6002 niu_enable_interrupts(np, 0); 6003 6004 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable RX MAC\n"); 6005 niu_enable_rx_mac(np, 0); 6006 6007 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable IPP\n"); 6008 niu_disable_ipp(np); 6009 6010 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop TX channels\n"); 6011 niu_stop_tx_channels(np); 6012 6013 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop RX channels\n"); 6014 niu_stop_rx_channels(np); 6015 6016 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset TX channels\n"); 6017 niu_reset_tx_channels(np); 6018 6019 netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset RX channels\n"); 6020 niu_reset_rx_channels(np); 6021 } 6022 6023 static void niu_set_irq_name(struct niu *np) 6024 { 6025 int port = np->port; 6026 int i, j = 1; 6027 6028 sprintf(np->irq_name[0], "%s:MAC", np->dev->name); 6029 6030 if (port == 0) { 6031 sprintf(np->irq_name[1], "%s:MIF", np->dev->name); 6032 sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name); 6033 j = 3; 6034 } 6035 6036 for (i = 0; i < np->num_ldg - j; i++) { 6037 if (i < np->num_rx_rings) 6038 sprintf(np->irq_name[i+j], "%s-rx-%d", 6039 np->dev->name, i); 6040 else if (i < np->num_tx_rings + np->num_rx_rings) 6041 sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name, 6042 i - np->num_rx_rings); 6043 } 6044 } 6045 6046 static int niu_request_irq(struct niu *np) 6047 { 6048 int i, j, err; 6049 6050 niu_set_irq_name(np); 6051 6052 err = 0; 6053 for (i = 0; i < np->num_ldg; i++) { 6054 struct niu_ldg *lp = &np->ldg[i]; 6055 6056 err = request_irq(lp->irq, niu_interrupt, IRQF_SHARED, 6057 np->irq_name[i], lp); 6058 if (err) 6059 goto out_free_irqs; 6060 6061 } 6062 6063 return 0; 6064 6065 out_free_irqs: 6066 for (j = 0; j < i; j++) { 6067 struct niu_ldg *lp = &np->ldg[j]; 6068 6069 free_irq(lp->irq, lp); 6070 } 6071 return err; 6072 } 6073 6074 static void niu_free_irq(struct niu *np) 6075 { 6076 int i; 6077 6078 for (i = 0; i < np->num_ldg; i++) { 6079 struct niu_ldg *lp = &np->ldg[i]; 6080 6081 free_irq(lp->irq, lp); 6082 } 6083 } 6084 6085 static void niu_enable_napi(struct niu *np) 6086 { 6087 int i; 6088 6089 for (i = 0; i < np->num_ldg; i++) 6090 napi_enable(&np->ldg[i].napi); 6091 } 6092 6093 static void niu_disable_napi(struct niu *np) 6094 { 6095 int i; 6096 6097 for (i = 0; i < np->num_ldg; i++) 6098 napi_disable(&np->ldg[i].napi); 6099 } 6100 6101 static int niu_open(struct net_device *dev) 6102 { 6103 struct niu *np = netdev_priv(dev); 6104 int err; 6105 6106 netif_carrier_off(dev); 6107 6108 err = niu_alloc_channels(np); 6109 if (err) 6110 goto out_err; 6111 6112 err = niu_enable_interrupts(np, 0); 6113 if (err) 6114 goto out_free_channels; 6115 6116 err = niu_request_irq(np); 6117 if (err) 6118 goto out_free_channels; 6119 6120 niu_enable_napi(np); 6121 6122 spin_lock_irq(&np->lock); 6123 6124 err = niu_init_hw(np); 6125 if (!err) { 6126 init_timer(&np->timer); 6127 np->timer.expires = jiffies + HZ; 6128 np->timer.data = (unsigned long) np; 6129 np->timer.function = niu_timer; 6130 6131 err = niu_enable_interrupts(np, 1); 6132 if (err) 6133 niu_stop_hw(np); 6134 } 6135 6136 spin_unlock_irq(&np->lock); 6137 6138 if (err) { 6139 niu_disable_napi(np); 6140 goto out_free_irq; 6141 } 6142 6143 netif_tx_start_all_queues(dev); 6144 6145 if (np->link_config.loopback_mode != LOOPBACK_DISABLED) 6146 netif_carrier_on(dev); 6147 6148 add_timer(&np->timer); 6149 6150 return 0; 6151 6152 out_free_irq: 6153 niu_free_irq(np); 6154 6155 out_free_channels: 6156 niu_free_channels(np); 6157 6158 out_err: 6159 return err; 6160 } 6161 6162 static void niu_full_shutdown(struct niu *np, struct net_device *dev) 6163 { 6164 cancel_work_sync(&np->reset_task); 6165 6166 niu_disable_napi(np); 6167 netif_tx_stop_all_queues(dev); 6168 6169 del_timer_sync(&np->timer); 6170 6171 spin_lock_irq(&np->lock); 6172 6173 niu_stop_hw(np); 6174 6175 spin_unlock_irq(&np->lock); 6176 } 6177 6178 static int niu_close(struct net_device *dev) 6179 { 6180 struct niu *np = netdev_priv(dev); 6181 6182 niu_full_shutdown(np, dev); 6183 6184 niu_free_irq(np); 6185 6186 niu_free_channels(np); 6187 6188 niu_handle_led(np, 0); 6189 6190 return 0; 6191 } 6192 6193 static void niu_sync_xmac_stats(struct niu *np) 6194 { 6195 struct niu_xmac_stats *mp = &np->mac_stats.xmac; 6196 6197 mp->tx_frames += nr64_mac(TXMAC_FRM_CNT); 6198 mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT); 6199 6200 mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT); 6201 mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT); 6202 mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT); 6203 mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT); 6204 mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT); 6205 mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1); 6206 mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2); 6207 mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3); 6208 mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4); 6209 mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5); 6210 mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6); 6211 mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7); 6212 mp->rx_octets += nr64_mac(RXMAC_BT_CNT); 6213 mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT); 6214 mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT); 6215 mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT); 6216 } 6217 6218 static void niu_sync_bmac_stats(struct niu *np) 6219 { 6220 struct niu_bmac_stats *mp = &np->mac_stats.bmac; 6221 6222 mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT); 6223 mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT); 6224 6225 mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT); 6226 mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); 6227 mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); 6228 mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT); 6229 } 6230 6231 static void niu_sync_mac_stats(struct niu *np) 6232 { 6233 if (np->flags & NIU_FLAGS_XMAC) 6234 niu_sync_xmac_stats(np); 6235 else 6236 niu_sync_bmac_stats(np); 6237 } 6238 6239 static void niu_get_rx_stats(struct niu *np, 6240 struct rtnl_link_stats64 *stats) 6241 { 6242 u64 pkts, dropped, errors, bytes; 6243 struct rx_ring_info *rx_rings; 6244 int i; 6245 6246 pkts = dropped = errors = bytes = 0; 6247 6248 rx_rings = ACCESS_ONCE(np->rx_rings); 6249 if (!rx_rings) 6250 goto no_rings; 6251 6252 for (i = 0; i < np->num_rx_rings; i++) { 6253 struct rx_ring_info *rp = &rx_rings[i]; 6254 6255 niu_sync_rx_discard_stats(np, rp, 0); 6256 6257 pkts += rp->rx_packets; 6258 bytes += rp->rx_bytes; 6259 dropped += rp->rx_dropped; 6260 errors += rp->rx_errors; 6261 } 6262 6263 no_rings: 6264 stats->rx_packets = pkts; 6265 stats->rx_bytes = bytes; 6266 stats->rx_dropped = dropped; 6267 stats->rx_errors = errors; 6268 } 6269 6270 static void niu_get_tx_stats(struct niu *np, 6271 struct rtnl_link_stats64 *stats) 6272 { 6273 u64 pkts, errors, bytes; 6274 struct tx_ring_info *tx_rings; 6275 int i; 6276 6277 pkts = errors = bytes = 0; 6278 6279 tx_rings = ACCESS_ONCE(np->tx_rings); 6280 if (!tx_rings) 6281 goto no_rings; 6282 6283 for (i = 0; i < np->num_tx_rings; i++) { 6284 struct tx_ring_info *rp = &tx_rings[i]; 6285 6286 pkts += rp->tx_packets; 6287 bytes += rp->tx_bytes; 6288 errors += rp->tx_errors; 6289 } 6290 6291 no_rings: 6292 stats->tx_packets = pkts; 6293 stats->tx_bytes = bytes; 6294 stats->tx_errors = errors; 6295 } 6296 6297 static void niu_get_stats(struct net_device *dev, 6298 struct rtnl_link_stats64 *stats) 6299 { 6300 struct niu *np = netdev_priv(dev); 6301 6302 if (netif_running(dev)) { 6303 niu_get_rx_stats(np, stats); 6304 niu_get_tx_stats(np, stats); 6305 } 6306 } 6307 6308 static void niu_load_hash_xmac(struct niu *np, u16 *hash) 6309 { 6310 int i; 6311 6312 for (i = 0; i < 16; i++) 6313 nw64_mac(XMAC_HASH_TBL(i), hash[i]); 6314 } 6315 6316 static void niu_load_hash_bmac(struct niu *np, u16 *hash) 6317 { 6318 int i; 6319 6320 for (i = 0; i < 16; i++) 6321 nw64_mac(BMAC_HASH_TBL(i), hash[i]); 6322 } 6323 6324 static void niu_load_hash(struct niu *np, u16 *hash) 6325 { 6326 if (np->flags & NIU_FLAGS_XMAC) 6327 niu_load_hash_xmac(np, hash); 6328 else 6329 niu_load_hash_bmac(np, hash); 6330 } 6331 6332 static void niu_set_rx_mode(struct net_device *dev) 6333 { 6334 struct niu *np = netdev_priv(dev); 6335 int i, alt_cnt, err; 6336 struct netdev_hw_addr *ha; 6337 unsigned long flags; 6338 u16 hash[16] = { 0, }; 6339 6340 spin_lock_irqsave(&np->lock, flags); 6341 niu_enable_rx_mac(np, 0); 6342 6343 np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC); 6344 if (dev->flags & IFF_PROMISC) 6345 np->flags |= NIU_FLAGS_PROMISC; 6346 if ((dev->flags & IFF_ALLMULTI) || (!netdev_mc_empty(dev))) 6347 np->flags |= NIU_FLAGS_MCAST; 6348 6349 alt_cnt = netdev_uc_count(dev); 6350 if (alt_cnt > niu_num_alt_addr(np)) { 6351 alt_cnt = 0; 6352 np->flags |= NIU_FLAGS_PROMISC; 6353 } 6354 6355 if (alt_cnt) { 6356 int index = 0; 6357 6358 netdev_for_each_uc_addr(ha, dev) { 6359 err = niu_set_alt_mac(np, index, ha->addr); 6360 if (err) 6361 netdev_warn(dev, "Error %d adding alt mac %d\n", 6362 err, index); 6363 err = niu_enable_alt_mac(np, index, 1); 6364 if (err) 6365 netdev_warn(dev, "Error %d enabling alt mac %d\n", 6366 err, index); 6367 6368 index++; 6369 } 6370 } else { 6371 int alt_start; 6372 if (np->flags & NIU_FLAGS_XMAC) 6373 alt_start = 0; 6374 else 6375 alt_start = 1; 6376 for (i = alt_start; i < niu_num_alt_addr(np); i++) { 6377 err = niu_enable_alt_mac(np, i, 0); 6378 if (err) 6379 netdev_warn(dev, "Error %d disabling alt mac %d\n", 6380 err, i); 6381 } 6382 } 6383 if (dev->flags & IFF_ALLMULTI) { 6384 for (i = 0; i < 16; i++) 6385 hash[i] = 0xffff; 6386 } else if (!netdev_mc_empty(dev)) { 6387 netdev_for_each_mc_addr(ha, dev) { 6388 u32 crc = ether_crc_le(ETH_ALEN, ha->addr); 6389 6390 crc >>= 24; 6391 hash[crc >> 4] |= (1 << (15 - (crc & 0xf))); 6392 } 6393 } 6394 6395 if (np->flags & NIU_FLAGS_MCAST) 6396 niu_load_hash(np, hash); 6397 6398 niu_enable_rx_mac(np, 1); 6399 spin_unlock_irqrestore(&np->lock, flags); 6400 } 6401 6402 static int niu_set_mac_addr(struct net_device *dev, void *p) 6403 { 6404 struct niu *np = netdev_priv(dev); 6405 struct sockaddr *addr = p; 6406 unsigned long flags; 6407 6408 if (!is_valid_ether_addr(addr->sa_data)) 6409 return -EADDRNOTAVAIL; 6410 6411 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 6412 6413 if (!netif_running(dev)) 6414 return 0; 6415 6416 spin_lock_irqsave(&np->lock, flags); 6417 niu_enable_rx_mac(np, 0); 6418 niu_set_primary_mac(np, dev->dev_addr); 6419 niu_enable_rx_mac(np, 1); 6420 spin_unlock_irqrestore(&np->lock, flags); 6421 6422 return 0; 6423 } 6424 6425 static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 6426 { 6427 return -EOPNOTSUPP; 6428 } 6429 6430 static void niu_netif_stop(struct niu *np) 6431 { 6432 netif_trans_update(np->dev); /* prevent tx timeout */ 6433 6434 niu_disable_napi(np); 6435 6436 netif_tx_disable(np->dev); 6437 } 6438 6439 static void niu_netif_start(struct niu *np) 6440 { 6441 /* NOTE: unconditional netif_wake_queue is only appropriate 6442 * so long as all callers are assured to have free tx slots 6443 * (such as after niu_init_hw). 6444 */ 6445 netif_tx_wake_all_queues(np->dev); 6446 6447 niu_enable_napi(np); 6448 6449 niu_enable_interrupts(np, 1); 6450 } 6451 6452 static void niu_reset_buffers(struct niu *np) 6453 { 6454 int i, j, k, err; 6455 6456 if (np->rx_rings) { 6457 for (i = 0; i < np->num_rx_rings; i++) { 6458 struct rx_ring_info *rp = &np->rx_rings[i]; 6459 6460 for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) { 6461 struct page *page; 6462 6463 page = rp->rxhash[j]; 6464 while (page) { 6465 struct page *next = 6466 (struct page *) page->mapping; 6467 u64 base = page->index; 6468 base = base >> RBR_DESCR_ADDR_SHIFT; 6469 rp->rbr[k++] = cpu_to_le32(base); 6470 page = next; 6471 } 6472 } 6473 for (; k < MAX_RBR_RING_SIZE; k++) { 6474 err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k); 6475 if (unlikely(err)) 6476 break; 6477 } 6478 6479 rp->rbr_index = rp->rbr_table_size - 1; 6480 rp->rcr_index = 0; 6481 rp->rbr_pending = 0; 6482 rp->rbr_refill_pending = 0; 6483 } 6484 } 6485 if (np->tx_rings) { 6486 for (i = 0; i < np->num_tx_rings; i++) { 6487 struct tx_ring_info *rp = &np->tx_rings[i]; 6488 6489 for (j = 0; j < MAX_TX_RING_SIZE; j++) { 6490 if (rp->tx_buffs[j].skb) 6491 (void) release_tx_packet(np, rp, j); 6492 } 6493 6494 rp->pending = MAX_TX_RING_SIZE; 6495 rp->prod = 0; 6496 rp->cons = 0; 6497 rp->wrap_bit = 0; 6498 } 6499 } 6500 } 6501 6502 static void niu_reset_task(struct work_struct *work) 6503 { 6504 struct niu *np = container_of(work, struct niu, reset_task); 6505 unsigned long flags; 6506 int err; 6507 6508 spin_lock_irqsave(&np->lock, flags); 6509 if (!netif_running(np->dev)) { 6510 spin_unlock_irqrestore(&np->lock, flags); 6511 return; 6512 } 6513 6514 spin_unlock_irqrestore(&np->lock, flags); 6515 6516 del_timer_sync(&np->timer); 6517 6518 niu_netif_stop(np); 6519 6520 spin_lock_irqsave(&np->lock, flags); 6521 6522 niu_stop_hw(np); 6523 6524 spin_unlock_irqrestore(&np->lock, flags); 6525 6526 niu_reset_buffers(np); 6527 6528 spin_lock_irqsave(&np->lock, flags); 6529 6530 err = niu_init_hw(np); 6531 if (!err) { 6532 np->timer.expires = jiffies + HZ; 6533 add_timer(&np->timer); 6534 niu_netif_start(np); 6535 } 6536 6537 spin_unlock_irqrestore(&np->lock, flags); 6538 } 6539 6540 static void niu_tx_timeout(struct net_device *dev) 6541 { 6542 struct niu *np = netdev_priv(dev); 6543 6544 dev_err(np->device, "%s: Transmit timed out, resetting\n", 6545 dev->name); 6546 6547 schedule_work(&np->reset_task); 6548 } 6549 6550 static void niu_set_txd(struct tx_ring_info *rp, int index, 6551 u64 mapping, u64 len, u64 mark, 6552 u64 n_frags) 6553 { 6554 __le64 *desc = &rp->descr[index]; 6555 6556 *desc = cpu_to_le64(mark | 6557 (n_frags << TX_DESC_NUM_PTR_SHIFT) | 6558 (len << TX_DESC_TR_LEN_SHIFT) | 6559 (mapping & TX_DESC_SAD)); 6560 } 6561 6562 static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr, 6563 u64 pad_bytes, u64 len) 6564 { 6565 u16 eth_proto, eth_proto_inner; 6566 u64 csum_bits, l3off, ihl, ret; 6567 u8 ip_proto; 6568 int ipv6; 6569 6570 eth_proto = be16_to_cpu(ehdr->h_proto); 6571 eth_proto_inner = eth_proto; 6572 if (eth_proto == ETH_P_8021Q) { 6573 struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr; 6574 __be16 val = vp->h_vlan_encapsulated_proto; 6575 6576 eth_proto_inner = be16_to_cpu(val); 6577 } 6578 6579 ipv6 = ihl = 0; 6580 switch (skb->protocol) { 6581 case cpu_to_be16(ETH_P_IP): 6582 ip_proto = ip_hdr(skb)->protocol; 6583 ihl = ip_hdr(skb)->ihl; 6584 break; 6585 case cpu_to_be16(ETH_P_IPV6): 6586 ip_proto = ipv6_hdr(skb)->nexthdr; 6587 ihl = (40 >> 2); 6588 ipv6 = 1; 6589 break; 6590 default: 6591 ip_proto = ihl = 0; 6592 break; 6593 } 6594 6595 csum_bits = TXHDR_CSUM_NONE; 6596 if (skb->ip_summed == CHECKSUM_PARTIAL) { 6597 u64 start, stuff; 6598 6599 csum_bits = (ip_proto == IPPROTO_TCP ? 6600 TXHDR_CSUM_TCP : 6601 (ip_proto == IPPROTO_UDP ? 6602 TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP)); 6603 6604 start = skb_checksum_start_offset(skb) - 6605 (pad_bytes + sizeof(struct tx_pkt_hdr)); 6606 stuff = start + skb->csum_offset; 6607 6608 csum_bits |= (start / 2) << TXHDR_L4START_SHIFT; 6609 csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT; 6610 } 6611 6612 l3off = skb_network_offset(skb) - 6613 (pad_bytes + sizeof(struct tx_pkt_hdr)); 6614 6615 ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) | 6616 (len << TXHDR_LEN_SHIFT) | 6617 ((l3off / 2) << TXHDR_L3START_SHIFT) | 6618 (ihl << TXHDR_IHL_SHIFT) | 6619 ((eth_proto_inner < ETH_P_802_3_MIN) ? TXHDR_LLC : 0) | 6620 ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) | 6621 (ipv6 ? TXHDR_IP_VER : 0) | 6622 csum_bits); 6623 6624 return ret; 6625 } 6626 6627 static netdev_tx_t niu_start_xmit(struct sk_buff *skb, 6628 struct net_device *dev) 6629 { 6630 struct niu *np = netdev_priv(dev); 6631 unsigned long align, headroom; 6632 struct netdev_queue *txq; 6633 struct tx_ring_info *rp; 6634 struct tx_pkt_hdr *tp; 6635 unsigned int len, nfg; 6636 struct ethhdr *ehdr; 6637 int prod, i, tlen; 6638 u64 mapping, mrk; 6639 6640 i = skb_get_queue_mapping(skb); 6641 rp = &np->tx_rings[i]; 6642 txq = netdev_get_tx_queue(dev, i); 6643 6644 if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) { 6645 netif_tx_stop_queue(txq); 6646 dev_err(np->device, "%s: BUG! Tx ring full when queue awake!\n", dev->name); 6647 rp->tx_errors++; 6648 return NETDEV_TX_BUSY; 6649 } 6650 6651 if (eth_skb_pad(skb)) 6652 goto out; 6653 6654 len = sizeof(struct tx_pkt_hdr) + 15; 6655 if (skb_headroom(skb) < len) { 6656 struct sk_buff *skb_new; 6657 6658 skb_new = skb_realloc_headroom(skb, len); 6659 if (!skb_new) 6660 goto out_drop; 6661 kfree_skb(skb); 6662 skb = skb_new; 6663 } else 6664 skb_orphan(skb); 6665 6666 align = ((unsigned long) skb->data & (16 - 1)); 6667 headroom = align + sizeof(struct tx_pkt_hdr); 6668 6669 ehdr = (struct ethhdr *) skb->data; 6670 tp = (struct tx_pkt_hdr *) skb_push(skb, headroom); 6671 6672 len = skb->len - sizeof(struct tx_pkt_hdr); 6673 tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len)); 6674 tp->resv = 0; 6675 6676 len = skb_headlen(skb); 6677 mapping = np->ops->map_single(np->device, skb->data, 6678 len, DMA_TO_DEVICE); 6679 6680 prod = rp->prod; 6681 6682 rp->tx_buffs[prod].skb = skb; 6683 rp->tx_buffs[prod].mapping = mapping; 6684 6685 mrk = TX_DESC_SOP; 6686 if (++rp->mark_counter == rp->mark_freq) { 6687 rp->mark_counter = 0; 6688 mrk |= TX_DESC_MARK; 6689 rp->mark_pending++; 6690 } 6691 6692 tlen = len; 6693 nfg = skb_shinfo(skb)->nr_frags; 6694 while (tlen > 0) { 6695 tlen -= MAX_TX_DESC_LEN; 6696 nfg++; 6697 } 6698 6699 while (len > 0) { 6700 unsigned int this_len = len; 6701 6702 if (this_len > MAX_TX_DESC_LEN) 6703 this_len = MAX_TX_DESC_LEN; 6704 6705 niu_set_txd(rp, prod, mapping, this_len, mrk, nfg); 6706 mrk = nfg = 0; 6707 6708 prod = NEXT_TX(rp, prod); 6709 mapping += this_len; 6710 len -= this_len; 6711 } 6712 6713 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 6714 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 6715 6716 len = skb_frag_size(frag); 6717 mapping = np->ops->map_page(np->device, skb_frag_page(frag), 6718 frag->page_offset, len, 6719 DMA_TO_DEVICE); 6720 6721 rp->tx_buffs[prod].skb = NULL; 6722 rp->tx_buffs[prod].mapping = mapping; 6723 6724 niu_set_txd(rp, prod, mapping, len, 0, 0); 6725 6726 prod = NEXT_TX(rp, prod); 6727 } 6728 6729 if (prod < rp->prod) 6730 rp->wrap_bit ^= TX_RING_KICK_WRAP; 6731 rp->prod = prod; 6732 6733 nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3)); 6734 6735 if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) { 6736 netif_tx_stop_queue(txq); 6737 if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)) 6738 netif_tx_wake_queue(txq); 6739 } 6740 6741 out: 6742 return NETDEV_TX_OK; 6743 6744 out_drop: 6745 rp->tx_errors++; 6746 kfree_skb(skb); 6747 goto out; 6748 } 6749 6750 static int niu_change_mtu(struct net_device *dev, int new_mtu) 6751 { 6752 struct niu *np = netdev_priv(dev); 6753 int err, orig_jumbo, new_jumbo; 6754 6755 orig_jumbo = (dev->mtu > ETH_DATA_LEN); 6756 new_jumbo = (new_mtu > ETH_DATA_LEN); 6757 6758 dev->mtu = new_mtu; 6759 6760 if (!netif_running(dev) || 6761 (orig_jumbo == new_jumbo)) 6762 return 0; 6763 6764 niu_full_shutdown(np, dev); 6765 6766 niu_free_channels(np); 6767 6768 niu_enable_napi(np); 6769 6770 err = niu_alloc_channels(np); 6771 if (err) 6772 return err; 6773 6774 spin_lock_irq(&np->lock); 6775 6776 err = niu_init_hw(np); 6777 if (!err) { 6778 init_timer(&np->timer); 6779 np->timer.expires = jiffies + HZ; 6780 np->timer.data = (unsigned long) np; 6781 np->timer.function = niu_timer; 6782 6783 err = niu_enable_interrupts(np, 1); 6784 if (err) 6785 niu_stop_hw(np); 6786 } 6787 6788 spin_unlock_irq(&np->lock); 6789 6790 if (!err) { 6791 netif_tx_start_all_queues(dev); 6792 if (np->link_config.loopback_mode != LOOPBACK_DISABLED) 6793 netif_carrier_on(dev); 6794 6795 add_timer(&np->timer); 6796 } 6797 6798 return err; 6799 } 6800 6801 static void niu_get_drvinfo(struct net_device *dev, 6802 struct ethtool_drvinfo *info) 6803 { 6804 struct niu *np = netdev_priv(dev); 6805 struct niu_vpd *vpd = &np->vpd; 6806 6807 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); 6808 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); 6809 snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d", 6810 vpd->fcode_major, vpd->fcode_minor); 6811 if (np->parent->plat_type != PLAT_TYPE_NIU) 6812 strlcpy(info->bus_info, pci_name(np->pdev), 6813 sizeof(info->bus_info)); 6814 } 6815 6816 static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 6817 { 6818 struct niu *np = netdev_priv(dev); 6819 struct niu_link_config *lp; 6820 6821 lp = &np->link_config; 6822 6823 memset(cmd, 0, sizeof(*cmd)); 6824 cmd->phy_address = np->phy_addr; 6825 cmd->supported = lp->supported; 6826 cmd->advertising = lp->active_advertising; 6827 cmd->autoneg = lp->active_autoneg; 6828 ethtool_cmd_speed_set(cmd, lp->active_speed); 6829 cmd->duplex = lp->active_duplex; 6830 cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; 6831 cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? 6832 XCVR_EXTERNAL : XCVR_INTERNAL; 6833 6834 return 0; 6835 } 6836 6837 static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) 6838 { 6839 struct niu *np = netdev_priv(dev); 6840 struct niu_link_config *lp = &np->link_config; 6841 6842 lp->advertising = cmd->advertising; 6843 lp->speed = ethtool_cmd_speed(cmd); 6844 lp->duplex = cmd->duplex; 6845 lp->autoneg = cmd->autoneg; 6846 return niu_init_link(np); 6847 } 6848 6849 static u32 niu_get_msglevel(struct net_device *dev) 6850 { 6851 struct niu *np = netdev_priv(dev); 6852 return np->msg_enable; 6853 } 6854 6855 static void niu_set_msglevel(struct net_device *dev, u32 value) 6856 { 6857 struct niu *np = netdev_priv(dev); 6858 np->msg_enable = value; 6859 } 6860 6861 static int niu_nway_reset(struct net_device *dev) 6862 { 6863 struct niu *np = netdev_priv(dev); 6864 6865 if (np->link_config.autoneg) 6866 return niu_init_link(np); 6867 6868 return 0; 6869 } 6870 6871 static int niu_get_eeprom_len(struct net_device *dev) 6872 { 6873 struct niu *np = netdev_priv(dev); 6874 6875 return np->eeprom_len; 6876 } 6877 6878 static int niu_get_eeprom(struct net_device *dev, 6879 struct ethtool_eeprom *eeprom, u8 *data) 6880 { 6881 struct niu *np = netdev_priv(dev); 6882 u32 offset, len, val; 6883 6884 offset = eeprom->offset; 6885 len = eeprom->len; 6886 6887 if (offset + len < offset) 6888 return -EINVAL; 6889 if (offset >= np->eeprom_len) 6890 return -EINVAL; 6891 if (offset + len > np->eeprom_len) 6892 len = eeprom->len = np->eeprom_len - offset; 6893 6894 if (offset & 3) { 6895 u32 b_offset, b_count; 6896 6897 b_offset = offset & 3; 6898 b_count = 4 - b_offset; 6899 if (b_count > len) 6900 b_count = len; 6901 6902 val = nr64(ESPC_NCR((offset - b_offset) / 4)); 6903 memcpy(data, ((char *)&val) + b_offset, b_count); 6904 data += b_count; 6905 len -= b_count; 6906 offset += b_count; 6907 } 6908 while (len >= 4) { 6909 val = nr64(ESPC_NCR(offset / 4)); 6910 memcpy(data, &val, 4); 6911 data += 4; 6912 len -= 4; 6913 offset += 4; 6914 } 6915 if (len) { 6916 val = nr64(ESPC_NCR(offset / 4)); 6917 memcpy(data, &val, len); 6918 } 6919 return 0; 6920 } 6921 6922 static void niu_ethflow_to_l3proto(int flow_type, u8 *pid) 6923 { 6924 switch (flow_type) { 6925 case TCP_V4_FLOW: 6926 case TCP_V6_FLOW: 6927 *pid = IPPROTO_TCP; 6928 break; 6929 case UDP_V4_FLOW: 6930 case UDP_V6_FLOW: 6931 *pid = IPPROTO_UDP; 6932 break; 6933 case SCTP_V4_FLOW: 6934 case SCTP_V6_FLOW: 6935 *pid = IPPROTO_SCTP; 6936 break; 6937 case AH_V4_FLOW: 6938 case AH_V6_FLOW: 6939 *pid = IPPROTO_AH; 6940 break; 6941 case ESP_V4_FLOW: 6942 case ESP_V6_FLOW: 6943 *pid = IPPROTO_ESP; 6944 break; 6945 default: 6946 *pid = 0; 6947 break; 6948 } 6949 } 6950 6951 static int niu_class_to_ethflow(u64 class, int *flow_type) 6952 { 6953 switch (class) { 6954 case CLASS_CODE_TCP_IPV4: 6955 *flow_type = TCP_V4_FLOW; 6956 break; 6957 case CLASS_CODE_UDP_IPV4: 6958 *flow_type = UDP_V4_FLOW; 6959 break; 6960 case CLASS_CODE_AH_ESP_IPV4: 6961 *flow_type = AH_V4_FLOW; 6962 break; 6963 case CLASS_CODE_SCTP_IPV4: 6964 *flow_type = SCTP_V4_FLOW; 6965 break; 6966 case CLASS_CODE_TCP_IPV6: 6967 *flow_type = TCP_V6_FLOW; 6968 break; 6969 case CLASS_CODE_UDP_IPV6: 6970 *flow_type = UDP_V6_FLOW; 6971 break; 6972 case CLASS_CODE_AH_ESP_IPV6: 6973 *flow_type = AH_V6_FLOW; 6974 break; 6975 case CLASS_CODE_SCTP_IPV6: 6976 *flow_type = SCTP_V6_FLOW; 6977 break; 6978 case CLASS_CODE_USER_PROG1: 6979 case CLASS_CODE_USER_PROG2: 6980 case CLASS_CODE_USER_PROG3: 6981 case CLASS_CODE_USER_PROG4: 6982 *flow_type = IP_USER_FLOW; 6983 break; 6984 default: 6985 return -EINVAL; 6986 } 6987 6988 return 0; 6989 } 6990 6991 static int niu_ethflow_to_class(int flow_type, u64 *class) 6992 { 6993 switch (flow_type) { 6994 case TCP_V4_FLOW: 6995 *class = CLASS_CODE_TCP_IPV4; 6996 break; 6997 case UDP_V4_FLOW: 6998 *class = CLASS_CODE_UDP_IPV4; 6999 break; 7000 case AH_ESP_V4_FLOW: 7001 case AH_V4_FLOW: 7002 case ESP_V4_FLOW: 7003 *class = CLASS_CODE_AH_ESP_IPV4; 7004 break; 7005 case SCTP_V4_FLOW: 7006 *class = CLASS_CODE_SCTP_IPV4; 7007 break; 7008 case TCP_V6_FLOW: 7009 *class = CLASS_CODE_TCP_IPV6; 7010 break; 7011 case UDP_V6_FLOW: 7012 *class = CLASS_CODE_UDP_IPV6; 7013 break; 7014 case AH_ESP_V6_FLOW: 7015 case AH_V6_FLOW: 7016 case ESP_V6_FLOW: 7017 *class = CLASS_CODE_AH_ESP_IPV6; 7018 break; 7019 case SCTP_V6_FLOW: 7020 *class = CLASS_CODE_SCTP_IPV6; 7021 break; 7022 default: 7023 return 0; 7024 } 7025 7026 return 1; 7027 } 7028 7029 static u64 niu_flowkey_to_ethflow(u64 flow_key) 7030 { 7031 u64 ethflow = 0; 7032 7033 if (flow_key & FLOW_KEY_L2DA) 7034 ethflow |= RXH_L2DA; 7035 if (flow_key & FLOW_KEY_VLAN) 7036 ethflow |= RXH_VLAN; 7037 if (flow_key & FLOW_KEY_IPSA) 7038 ethflow |= RXH_IP_SRC; 7039 if (flow_key & FLOW_KEY_IPDA) 7040 ethflow |= RXH_IP_DST; 7041 if (flow_key & FLOW_KEY_PROTO) 7042 ethflow |= RXH_L3_PROTO; 7043 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT)) 7044 ethflow |= RXH_L4_B_0_1; 7045 if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT)) 7046 ethflow |= RXH_L4_B_2_3; 7047 7048 return ethflow; 7049 7050 } 7051 7052 static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) 7053 { 7054 u64 key = 0; 7055 7056 if (ethflow & RXH_L2DA) 7057 key |= FLOW_KEY_L2DA; 7058 if (ethflow & RXH_VLAN) 7059 key |= FLOW_KEY_VLAN; 7060 if (ethflow & RXH_IP_SRC) 7061 key |= FLOW_KEY_IPSA; 7062 if (ethflow & RXH_IP_DST) 7063 key |= FLOW_KEY_IPDA; 7064 if (ethflow & RXH_L3_PROTO) 7065 key |= FLOW_KEY_PROTO; 7066 if (ethflow & RXH_L4_B_0_1) 7067 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT); 7068 if (ethflow & RXH_L4_B_2_3) 7069 key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT); 7070 7071 *flow_key = key; 7072 7073 return 1; 7074 7075 } 7076 7077 static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) 7078 { 7079 u64 class; 7080 7081 nfc->data = 0; 7082 7083 if (!niu_ethflow_to_class(nfc->flow_type, &class)) 7084 return -EINVAL; 7085 7086 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & 7087 TCAM_KEY_DISC) 7088 nfc->data = RXH_DISCARD; 7089 else 7090 nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class - 7091 CLASS_CODE_USER_PROG1]); 7092 return 0; 7093 } 7094 7095 static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp, 7096 struct ethtool_rx_flow_spec *fsp) 7097 { 7098 u32 tmp; 7099 u16 prt; 7100 7101 tmp = (tp->key[3] & TCAM_V4KEY3_SADDR) >> TCAM_V4KEY3_SADDR_SHIFT; 7102 fsp->h_u.tcp_ip4_spec.ip4src = cpu_to_be32(tmp); 7103 7104 tmp = (tp->key[3] & TCAM_V4KEY3_DADDR) >> TCAM_V4KEY3_DADDR_SHIFT; 7105 fsp->h_u.tcp_ip4_spec.ip4dst = cpu_to_be32(tmp); 7106 7107 tmp = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >> TCAM_V4KEY3_SADDR_SHIFT; 7108 fsp->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(tmp); 7109 7110 tmp = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >> TCAM_V4KEY3_DADDR_SHIFT; 7111 fsp->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(tmp); 7112 7113 fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >> 7114 TCAM_V4KEY2_TOS_SHIFT; 7115 fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >> 7116 TCAM_V4KEY2_TOS_SHIFT; 7117 7118 switch (fsp->flow_type) { 7119 case TCP_V4_FLOW: 7120 case UDP_V4_FLOW: 7121 case SCTP_V4_FLOW: 7122 prt = ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> 7123 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; 7124 fsp->h_u.tcp_ip4_spec.psrc = cpu_to_be16(prt); 7125 7126 prt = ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> 7127 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; 7128 fsp->h_u.tcp_ip4_spec.pdst = cpu_to_be16(prt); 7129 7130 prt = ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> 7131 TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; 7132 fsp->m_u.tcp_ip4_spec.psrc = cpu_to_be16(prt); 7133 7134 prt = ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> 7135 TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; 7136 fsp->m_u.tcp_ip4_spec.pdst = cpu_to_be16(prt); 7137 break; 7138 case AH_V4_FLOW: 7139 case ESP_V4_FLOW: 7140 tmp = (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> 7141 TCAM_V4KEY2_PORT_SPI_SHIFT; 7142 fsp->h_u.ah_ip4_spec.spi = cpu_to_be32(tmp); 7143 7144 tmp = (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> 7145 TCAM_V4KEY2_PORT_SPI_SHIFT; 7146 fsp->m_u.ah_ip4_spec.spi = cpu_to_be32(tmp); 7147 break; 7148 case IP_USER_FLOW: 7149 tmp = (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> 7150 TCAM_V4KEY2_PORT_SPI_SHIFT; 7151 fsp->h_u.usr_ip4_spec.l4_4_bytes = cpu_to_be32(tmp); 7152 7153 tmp = (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> 7154 TCAM_V4KEY2_PORT_SPI_SHIFT; 7155 fsp->m_u.usr_ip4_spec.l4_4_bytes = cpu_to_be32(tmp); 7156 7157 fsp->h_u.usr_ip4_spec.proto = 7158 (tp->key[2] & TCAM_V4KEY2_PROTO) >> 7159 TCAM_V4KEY2_PROTO_SHIFT; 7160 fsp->m_u.usr_ip4_spec.proto = 7161 (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >> 7162 TCAM_V4KEY2_PROTO_SHIFT; 7163 7164 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 7165 break; 7166 default: 7167 break; 7168 } 7169 } 7170 7171 static int niu_get_ethtool_tcam_entry(struct niu *np, 7172 struct ethtool_rxnfc *nfc) 7173 { 7174 struct niu_parent *parent = np->parent; 7175 struct niu_tcam_entry *tp; 7176 struct ethtool_rx_flow_spec *fsp = &nfc->fs; 7177 u16 idx; 7178 u64 class; 7179 int ret = 0; 7180 7181 idx = tcam_get_index(np, (u16)nfc->fs.location); 7182 7183 tp = &parent->tcam[idx]; 7184 if (!tp->valid) { 7185 netdev_info(np->dev, "niu%d: entry [%d] invalid for idx[%d]\n", 7186 parent->index, (u16)nfc->fs.location, idx); 7187 return -EINVAL; 7188 } 7189 7190 /* fill the flow spec entry */ 7191 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> 7192 TCAM_V4KEY0_CLASS_CODE_SHIFT; 7193 ret = niu_class_to_ethflow(class, &fsp->flow_type); 7194 if (ret < 0) { 7195 netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n", 7196 parent->index); 7197 goto out; 7198 } 7199 7200 if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) { 7201 u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >> 7202 TCAM_V4KEY2_PROTO_SHIFT; 7203 if (proto == IPPROTO_ESP) { 7204 if (fsp->flow_type == AH_V4_FLOW) 7205 fsp->flow_type = ESP_V4_FLOW; 7206 else 7207 fsp->flow_type = ESP_V6_FLOW; 7208 } 7209 } 7210 7211 switch (fsp->flow_type) { 7212 case TCP_V4_FLOW: 7213 case UDP_V4_FLOW: 7214 case SCTP_V4_FLOW: 7215 case AH_V4_FLOW: 7216 case ESP_V4_FLOW: 7217 niu_get_ip4fs_from_tcam_key(tp, fsp); 7218 break; 7219 case TCP_V6_FLOW: 7220 case UDP_V6_FLOW: 7221 case SCTP_V6_FLOW: 7222 case AH_V6_FLOW: 7223 case ESP_V6_FLOW: 7224 /* Not yet implemented */ 7225 ret = -EINVAL; 7226 break; 7227 case IP_USER_FLOW: 7228 niu_get_ip4fs_from_tcam_key(tp, fsp); 7229 break; 7230 default: 7231 ret = -EINVAL; 7232 break; 7233 } 7234 7235 if (ret < 0) 7236 goto out; 7237 7238 if (tp->assoc_data & TCAM_ASSOCDATA_DISC) 7239 fsp->ring_cookie = RX_CLS_FLOW_DISC; 7240 else 7241 fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >> 7242 TCAM_ASSOCDATA_OFFSET_SHIFT; 7243 7244 /* put the tcam size here */ 7245 nfc->data = tcam_get_size(np); 7246 out: 7247 return ret; 7248 } 7249 7250 static int niu_get_ethtool_tcam_all(struct niu *np, 7251 struct ethtool_rxnfc *nfc, 7252 u32 *rule_locs) 7253 { 7254 struct niu_parent *parent = np->parent; 7255 struct niu_tcam_entry *tp; 7256 int i, idx, cnt; 7257 unsigned long flags; 7258 int ret = 0; 7259 7260 /* put the tcam size here */ 7261 nfc->data = tcam_get_size(np); 7262 7263 niu_lock_parent(np, flags); 7264 for (cnt = 0, i = 0; i < nfc->data; i++) { 7265 idx = tcam_get_index(np, i); 7266 tp = &parent->tcam[idx]; 7267 if (!tp->valid) 7268 continue; 7269 if (cnt == nfc->rule_cnt) { 7270 ret = -EMSGSIZE; 7271 break; 7272 } 7273 rule_locs[cnt] = i; 7274 cnt++; 7275 } 7276 niu_unlock_parent(np, flags); 7277 7278 nfc->rule_cnt = cnt; 7279 7280 return ret; 7281 } 7282 7283 static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 7284 u32 *rule_locs) 7285 { 7286 struct niu *np = netdev_priv(dev); 7287 int ret = 0; 7288 7289 switch (cmd->cmd) { 7290 case ETHTOOL_GRXFH: 7291 ret = niu_get_hash_opts(np, cmd); 7292 break; 7293 case ETHTOOL_GRXRINGS: 7294 cmd->data = np->num_rx_rings; 7295 break; 7296 case ETHTOOL_GRXCLSRLCNT: 7297 cmd->rule_cnt = tcam_get_valid_entry_cnt(np); 7298 break; 7299 case ETHTOOL_GRXCLSRULE: 7300 ret = niu_get_ethtool_tcam_entry(np, cmd); 7301 break; 7302 case ETHTOOL_GRXCLSRLALL: 7303 ret = niu_get_ethtool_tcam_all(np, cmd, rule_locs); 7304 break; 7305 default: 7306 ret = -EINVAL; 7307 break; 7308 } 7309 7310 return ret; 7311 } 7312 7313 static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) 7314 { 7315 u64 class; 7316 u64 flow_key = 0; 7317 unsigned long flags; 7318 7319 if (!niu_ethflow_to_class(nfc->flow_type, &class)) 7320 return -EINVAL; 7321 7322 if (class < CLASS_CODE_USER_PROG1 || 7323 class > CLASS_CODE_SCTP_IPV6) 7324 return -EINVAL; 7325 7326 if (nfc->data & RXH_DISCARD) { 7327 niu_lock_parent(np, flags); 7328 flow_key = np->parent->tcam_key[class - 7329 CLASS_CODE_USER_PROG1]; 7330 flow_key |= TCAM_KEY_DISC; 7331 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key); 7332 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key; 7333 niu_unlock_parent(np, flags); 7334 return 0; 7335 } else { 7336 /* Discard was set before, but is not set now */ 7337 if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & 7338 TCAM_KEY_DISC) { 7339 niu_lock_parent(np, flags); 7340 flow_key = np->parent->tcam_key[class - 7341 CLASS_CODE_USER_PROG1]; 7342 flow_key &= ~TCAM_KEY_DISC; 7343 nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), 7344 flow_key); 7345 np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = 7346 flow_key; 7347 niu_unlock_parent(np, flags); 7348 } 7349 } 7350 7351 if (!niu_ethflow_to_flowkey(nfc->data, &flow_key)) 7352 return -EINVAL; 7353 7354 niu_lock_parent(np, flags); 7355 nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key); 7356 np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key; 7357 niu_unlock_parent(np, flags); 7358 7359 return 0; 7360 } 7361 7362 static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp, 7363 struct niu_tcam_entry *tp, 7364 int l2_rdc_tab, u64 class) 7365 { 7366 u8 pid = 0; 7367 u32 sip, dip, sipm, dipm, spi, spim; 7368 u16 sport, dport, spm, dpm; 7369 7370 sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src); 7371 sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src); 7372 dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst); 7373 dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst); 7374 7375 tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT; 7376 tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE; 7377 tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT; 7378 tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM; 7379 7380 tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT; 7381 tp->key[3] |= dip; 7382 7383 tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT; 7384 tp->key_mask[3] |= dipm; 7385 7386 tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos << 7387 TCAM_V4KEY2_TOS_SHIFT); 7388 tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos << 7389 TCAM_V4KEY2_TOS_SHIFT); 7390 switch (fsp->flow_type) { 7391 case TCP_V4_FLOW: 7392 case UDP_V4_FLOW: 7393 case SCTP_V4_FLOW: 7394 sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc); 7395 spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc); 7396 dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst); 7397 dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst); 7398 7399 tp->key[2] |= (((u64)sport << 16) | dport); 7400 tp->key_mask[2] |= (((u64)spm << 16) | dpm); 7401 niu_ethflow_to_l3proto(fsp->flow_type, &pid); 7402 break; 7403 case AH_V4_FLOW: 7404 case ESP_V4_FLOW: 7405 spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi); 7406 spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi); 7407 7408 tp->key[2] |= spi; 7409 tp->key_mask[2] |= spim; 7410 niu_ethflow_to_l3proto(fsp->flow_type, &pid); 7411 break; 7412 case IP_USER_FLOW: 7413 spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes); 7414 spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes); 7415 7416 tp->key[2] |= spi; 7417 tp->key_mask[2] |= spim; 7418 pid = fsp->h_u.usr_ip4_spec.proto; 7419 break; 7420 default: 7421 break; 7422 } 7423 7424 tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT); 7425 if (pid) { 7426 tp->key_mask[2] |= TCAM_V4KEY2_PROTO; 7427 } 7428 } 7429 7430 static int niu_add_ethtool_tcam_entry(struct niu *np, 7431 struct ethtool_rxnfc *nfc) 7432 { 7433 struct niu_parent *parent = np->parent; 7434 struct niu_tcam_entry *tp; 7435 struct ethtool_rx_flow_spec *fsp = &nfc->fs; 7436 struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port]; 7437 int l2_rdc_table = rdc_table->first_table_num; 7438 u16 idx; 7439 u64 class; 7440 unsigned long flags; 7441 int err, ret; 7442 7443 ret = 0; 7444 7445 idx = nfc->fs.location; 7446 if (idx >= tcam_get_size(np)) 7447 return -EINVAL; 7448 7449 if (fsp->flow_type == IP_USER_FLOW) { 7450 int i; 7451 int add_usr_cls = 0; 7452 struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec; 7453 struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec; 7454 7455 if (uspec->ip_ver != ETH_RX_NFC_IP4) 7456 return -EINVAL; 7457 7458 niu_lock_parent(np, flags); 7459 7460 for (i = 0; i < NIU_L3_PROG_CLS; i++) { 7461 if (parent->l3_cls[i]) { 7462 if (uspec->proto == parent->l3_cls_pid[i]) { 7463 class = parent->l3_cls[i]; 7464 parent->l3_cls_refcnt[i]++; 7465 add_usr_cls = 1; 7466 break; 7467 } 7468 } else { 7469 /* Program new user IP class */ 7470 switch (i) { 7471 case 0: 7472 class = CLASS_CODE_USER_PROG1; 7473 break; 7474 case 1: 7475 class = CLASS_CODE_USER_PROG2; 7476 break; 7477 case 2: 7478 class = CLASS_CODE_USER_PROG3; 7479 break; 7480 case 3: 7481 class = CLASS_CODE_USER_PROG4; 7482 break; 7483 default: 7484 break; 7485 } 7486 ret = tcam_user_ip_class_set(np, class, 0, 7487 uspec->proto, 7488 uspec->tos, 7489 umask->tos); 7490 if (ret) 7491 goto out; 7492 7493 ret = tcam_user_ip_class_enable(np, class, 1); 7494 if (ret) 7495 goto out; 7496 parent->l3_cls[i] = class; 7497 parent->l3_cls_pid[i] = uspec->proto; 7498 parent->l3_cls_refcnt[i]++; 7499 add_usr_cls = 1; 7500 break; 7501 } 7502 } 7503 if (!add_usr_cls) { 7504 netdev_info(np->dev, "niu%d: %s(): Could not find/insert class for pid %d\n", 7505 parent->index, __func__, uspec->proto); 7506 ret = -EINVAL; 7507 goto out; 7508 } 7509 niu_unlock_parent(np, flags); 7510 } else { 7511 if (!niu_ethflow_to_class(fsp->flow_type, &class)) { 7512 return -EINVAL; 7513 } 7514 } 7515 7516 niu_lock_parent(np, flags); 7517 7518 idx = tcam_get_index(np, idx); 7519 tp = &parent->tcam[idx]; 7520 7521 memset(tp, 0, sizeof(*tp)); 7522 7523 /* fill in the tcam key and mask */ 7524 switch (fsp->flow_type) { 7525 case TCP_V4_FLOW: 7526 case UDP_V4_FLOW: 7527 case SCTP_V4_FLOW: 7528 case AH_V4_FLOW: 7529 case ESP_V4_FLOW: 7530 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class); 7531 break; 7532 case TCP_V6_FLOW: 7533 case UDP_V6_FLOW: 7534 case SCTP_V6_FLOW: 7535 case AH_V6_FLOW: 7536 case ESP_V6_FLOW: 7537 /* Not yet implemented */ 7538 netdev_info(np->dev, "niu%d: In %s(): flow %d for IPv6 not implemented\n", 7539 parent->index, __func__, fsp->flow_type); 7540 ret = -EINVAL; 7541 goto out; 7542 case IP_USER_FLOW: 7543 niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class); 7544 break; 7545 default: 7546 netdev_info(np->dev, "niu%d: In %s(): Unknown flow type %d\n", 7547 parent->index, __func__, fsp->flow_type); 7548 ret = -EINVAL; 7549 goto out; 7550 } 7551 7552 /* fill in the assoc data */ 7553 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 7554 tp->assoc_data = TCAM_ASSOCDATA_DISC; 7555 } else { 7556 if (fsp->ring_cookie >= np->num_rx_rings) { 7557 netdev_info(np->dev, "niu%d: In %s(): Invalid RX ring %lld\n", 7558 parent->index, __func__, 7559 (long long)fsp->ring_cookie); 7560 ret = -EINVAL; 7561 goto out; 7562 } 7563 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | 7564 (fsp->ring_cookie << 7565 TCAM_ASSOCDATA_OFFSET_SHIFT)); 7566 } 7567 7568 err = tcam_write(np, idx, tp->key, tp->key_mask); 7569 if (err) { 7570 ret = -EINVAL; 7571 goto out; 7572 } 7573 err = tcam_assoc_write(np, idx, tp->assoc_data); 7574 if (err) { 7575 ret = -EINVAL; 7576 goto out; 7577 } 7578 7579 /* validate the entry */ 7580 tp->valid = 1; 7581 np->clas.tcam_valid_entries++; 7582 out: 7583 niu_unlock_parent(np, flags); 7584 7585 return ret; 7586 } 7587 7588 static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc) 7589 { 7590 struct niu_parent *parent = np->parent; 7591 struct niu_tcam_entry *tp; 7592 u16 idx; 7593 unsigned long flags; 7594 u64 class; 7595 int ret = 0; 7596 7597 if (loc >= tcam_get_size(np)) 7598 return -EINVAL; 7599 7600 niu_lock_parent(np, flags); 7601 7602 idx = tcam_get_index(np, loc); 7603 tp = &parent->tcam[idx]; 7604 7605 /* if the entry is of a user defined class, then update*/ 7606 class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> 7607 TCAM_V4KEY0_CLASS_CODE_SHIFT; 7608 7609 if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) { 7610 int i; 7611 for (i = 0; i < NIU_L3_PROG_CLS; i++) { 7612 if (parent->l3_cls[i] == class) { 7613 parent->l3_cls_refcnt[i]--; 7614 if (!parent->l3_cls_refcnt[i]) { 7615 /* disable class */ 7616 ret = tcam_user_ip_class_enable(np, 7617 class, 7618 0); 7619 if (ret) 7620 goto out; 7621 parent->l3_cls[i] = 0; 7622 parent->l3_cls_pid[i] = 0; 7623 } 7624 break; 7625 } 7626 } 7627 if (i == NIU_L3_PROG_CLS) { 7628 netdev_info(np->dev, "niu%d: In %s(): Usr class 0x%llx not found\n", 7629 parent->index, __func__, 7630 (unsigned long long)class); 7631 ret = -EINVAL; 7632 goto out; 7633 } 7634 } 7635 7636 ret = tcam_flush(np, idx); 7637 if (ret) 7638 goto out; 7639 7640 /* invalidate the entry */ 7641 tp->valid = 0; 7642 np->clas.tcam_valid_entries--; 7643 out: 7644 niu_unlock_parent(np, flags); 7645 7646 return ret; 7647 } 7648 7649 static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 7650 { 7651 struct niu *np = netdev_priv(dev); 7652 int ret = 0; 7653 7654 switch (cmd->cmd) { 7655 case ETHTOOL_SRXFH: 7656 ret = niu_set_hash_opts(np, cmd); 7657 break; 7658 case ETHTOOL_SRXCLSRLINS: 7659 ret = niu_add_ethtool_tcam_entry(np, cmd); 7660 break; 7661 case ETHTOOL_SRXCLSRLDEL: 7662 ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location); 7663 break; 7664 default: 7665 ret = -EINVAL; 7666 break; 7667 } 7668 7669 return ret; 7670 } 7671 7672 static const struct { 7673 const char string[ETH_GSTRING_LEN]; 7674 } niu_xmac_stat_keys[] = { 7675 { "tx_frames" }, 7676 { "tx_bytes" }, 7677 { "tx_fifo_errors" }, 7678 { "tx_overflow_errors" }, 7679 { "tx_max_pkt_size_errors" }, 7680 { "tx_underflow_errors" }, 7681 { "rx_local_faults" }, 7682 { "rx_remote_faults" }, 7683 { "rx_link_faults" }, 7684 { "rx_align_errors" }, 7685 { "rx_frags" }, 7686 { "rx_mcasts" }, 7687 { "rx_bcasts" }, 7688 { "rx_hist_cnt1" }, 7689 { "rx_hist_cnt2" }, 7690 { "rx_hist_cnt3" }, 7691 { "rx_hist_cnt4" }, 7692 { "rx_hist_cnt5" }, 7693 { "rx_hist_cnt6" }, 7694 { "rx_hist_cnt7" }, 7695 { "rx_octets" }, 7696 { "rx_code_violations" }, 7697 { "rx_len_errors" }, 7698 { "rx_crc_errors" }, 7699 { "rx_underflows" }, 7700 { "rx_overflows" }, 7701 { "pause_off_state" }, 7702 { "pause_on_state" }, 7703 { "pause_received" }, 7704 }; 7705 7706 #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys) 7707 7708 static const struct { 7709 const char string[ETH_GSTRING_LEN]; 7710 } niu_bmac_stat_keys[] = { 7711 { "tx_underflow_errors" }, 7712 { "tx_max_pkt_size_errors" }, 7713 { "tx_bytes" }, 7714 { "tx_frames" }, 7715 { "rx_overflows" }, 7716 { "rx_frames" }, 7717 { "rx_align_errors" }, 7718 { "rx_crc_errors" }, 7719 { "rx_len_errors" }, 7720 { "pause_off_state" }, 7721 { "pause_on_state" }, 7722 { "pause_received" }, 7723 }; 7724 7725 #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys) 7726 7727 static const struct { 7728 const char string[ETH_GSTRING_LEN]; 7729 } niu_rxchan_stat_keys[] = { 7730 { "rx_channel" }, 7731 { "rx_packets" }, 7732 { "rx_bytes" }, 7733 { "rx_dropped" }, 7734 { "rx_errors" }, 7735 }; 7736 7737 #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys) 7738 7739 static const struct { 7740 const char string[ETH_GSTRING_LEN]; 7741 } niu_txchan_stat_keys[] = { 7742 { "tx_channel" }, 7743 { "tx_packets" }, 7744 { "tx_bytes" }, 7745 { "tx_errors" }, 7746 }; 7747 7748 #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys) 7749 7750 static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data) 7751 { 7752 struct niu *np = netdev_priv(dev); 7753 int i; 7754 7755 if (stringset != ETH_SS_STATS) 7756 return; 7757 7758 if (np->flags & NIU_FLAGS_XMAC) { 7759 memcpy(data, niu_xmac_stat_keys, 7760 sizeof(niu_xmac_stat_keys)); 7761 data += sizeof(niu_xmac_stat_keys); 7762 } else { 7763 memcpy(data, niu_bmac_stat_keys, 7764 sizeof(niu_bmac_stat_keys)); 7765 data += sizeof(niu_bmac_stat_keys); 7766 } 7767 for (i = 0; i < np->num_rx_rings; i++) { 7768 memcpy(data, niu_rxchan_stat_keys, 7769 sizeof(niu_rxchan_stat_keys)); 7770 data += sizeof(niu_rxchan_stat_keys); 7771 } 7772 for (i = 0; i < np->num_tx_rings; i++) { 7773 memcpy(data, niu_txchan_stat_keys, 7774 sizeof(niu_txchan_stat_keys)); 7775 data += sizeof(niu_txchan_stat_keys); 7776 } 7777 } 7778 7779 static int niu_get_sset_count(struct net_device *dev, int stringset) 7780 { 7781 struct niu *np = netdev_priv(dev); 7782 7783 if (stringset != ETH_SS_STATS) 7784 return -EINVAL; 7785 7786 return (np->flags & NIU_FLAGS_XMAC ? 7787 NUM_XMAC_STAT_KEYS : 7788 NUM_BMAC_STAT_KEYS) + 7789 (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) + 7790 (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS); 7791 } 7792 7793 static void niu_get_ethtool_stats(struct net_device *dev, 7794 struct ethtool_stats *stats, u64 *data) 7795 { 7796 struct niu *np = netdev_priv(dev); 7797 int i; 7798 7799 niu_sync_mac_stats(np); 7800 if (np->flags & NIU_FLAGS_XMAC) { 7801 memcpy(data, &np->mac_stats.xmac, 7802 sizeof(struct niu_xmac_stats)); 7803 data += (sizeof(struct niu_xmac_stats) / sizeof(u64)); 7804 } else { 7805 memcpy(data, &np->mac_stats.bmac, 7806 sizeof(struct niu_bmac_stats)); 7807 data += (sizeof(struct niu_bmac_stats) / sizeof(u64)); 7808 } 7809 for (i = 0; i < np->num_rx_rings; i++) { 7810 struct rx_ring_info *rp = &np->rx_rings[i]; 7811 7812 niu_sync_rx_discard_stats(np, rp, 0); 7813 7814 data[0] = rp->rx_channel; 7815 data[1] = rp->rx_packets; 7816 data[2] = rp->rx_bytes; 7817 data[3] = rp->rx_dropped; 7818 data[4] = rp->rx_errors; 7819 data += 5; 7820 } 7821 for (i = 0; i < np->num_tx_rings; i++) { 7822 struct tx_ring_info *rp = &np->tx_rings[i]; 7823 7824 data[0] = rp->tx_channel; 7825 data[1] = rp->tx_packets; 7826 data[2] = rp->tx_bytes; 7827 data[3] = rp->tx_errors; 7828 data += 4; 7829 } 7830 } 7831 7832 static u64 niu_led_state_save(struct niu *np) 7833 { 7834 if (np->flags & NIU_FLAGS_XMAC) 7835 return nr64_mac(XMAC_CONFIG); 7836 else 7837 return nr64_mac(BMAC_XIF_CONFIG); 7838 } 7839 7840 static void niu_led_state_restore(struct niu *np, u64 val) 7841 { 7842 if (np->flags & NIU_FLAGS_XMAC) 7843 nw64_mac(XMAC_CONFIG, val); 7844 else 7845 nw64_mac(BMAC_XIF_CONFIG, val); 7846 } 7847 7848 static void niu_force_led(struct niu *np, int on) 7849 { 7850 u64 val, reg, bit; 7851 7852 if (np->flags & NIU_FLAGS_XMAC) { 7853 reg = XMAC_CONFIG; 7854 bit = XMAC_CONFIG_FORCE_LED_ON; 7855 } else { 7856 reg = BMAC_XIF_CONFIG; 7857 bit = BMAC_XIF_CONFIG_LINK_LED; 7858 } 7859 7860 val = nr64_mac(reg); 7861 if (on) 7862 val |= bit; 7863 else 7864 val &= ~bit; 7865 nw64_mac(reg, val); 7866 } 7867 7868 static int niu_set_phys_id(struct net_device *dev, 7869 enum ethtool_phys_id_state state) 7870 7871 { 7872 struct niu *np = netdev_priv(dev); 7873 7874 if (!netif_running(dev)) 7875 return -EAGAIN; 7876 7877 switch (state) { 7878 case ETHTOOL_ID_ACTIVE: 7879 np->orig_led_state = niu_led_state_save(np); 7880 return 1; /* cycle on/off once per second */ 7881 7882 case ETHTOOL_ID_ON: 7883 niu_force_led(np, 1); 7884 break; 7885 7886 case ETHTOOL_ID_OFF: 7887 niu_force_led(np, 0); 7888 break; 7889 7890 case ETHTOOL_ID_INACTIVE: 7891 niu_led_state_restore(np, np->orig_led_state); 7892 } 7893 7894 return 0; 7895 } 7896 7897 static const struct ethtool_ops niu_ethtool_ops = { 7898 .get_drvinfo = niu_get_drvinfo, 7899 .get_link = ethtool_op_get_link, 7900 .get_msglevel = niu_get_msglevel, 7901 .set_msglevel = niu_set_msglevel, 7902 .nway_reset = niu_nway_reset, 7903 .get_eeprom_len = niu_get_eeprom_len, 7904 .get_eeprom = niu_get_eeprom, 7905 .get_settings = niu_get_settings, 7906 .set_settings = niu_set_settings, 7907 .get_strings = niu_get_strings, 7908 .get_sset_count = niu_get_sset_count, 7909 .get_ethtool_stats = niu_get_ethtool_stats, 7910 .set_phys_id = niu_set_phys_id, 7911 .get_rxnfc = niu_get_nfc, 7912 .set_rxnfc = niu_set_nfc, 7913 }; 7914 7915 static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, 7916 int ldg, int ldn) 7917 { 7918 if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) 7919 return -EINVAL; 7920 if (ldn < 0 || ldn > LDN_MAX) 7921 return -EINVAL; 7922 7923 parent->ldg_map[ldn] = ldg; 7924 7925 if (np->parent->plat_type == PLAT_TYPE_NIU) { 7926 /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by 7927 * the firmware, and we're not supposed to change them. 7928 * Validate the mapping, because if it's wrong we probably 7929 * won't get any interrupts and that's painful to debug. 7930 */ 7931 if (nr64(LDG_NUM(ldn)) != ldg) { 7932 dev_err(np->device, "Port %u, mis-matched LDG assignment for ldn %d, should be %d is %llu\n", 7933 np->port, ldn, ldg, 7934 (unsigned long long) nr64(LDG_NUM(ldn))); 7935 return -EINVAL; 7936 } 7937 } else 7938 nw64(LDG_NUM(ldn), ldg); 7939 7940 return 0; 7941 } 7942 7943 static int niu_set_ldg_timer_res(struct niu *np, int res) 7944 { 7945 if (res < 0 || res > LDG_TIMER_RES_VAL) 7946 return -EINVAL; 7947 7948 7949 nw64(LDG_TIMER_RES, res); 7950 7951 return 0; 7952 } 7953 7954 static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector) 7955 { 7956 if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) || 7957 (func < 0 || func > 3) || 7958 (vector < 0 || vector > 0x1f)) 7959 return -EINVAL; 7960 7961 nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector); 7962 7963 return 0; 7964 } 7965 7966 static int niu_pci_eeprom_read(struct niu *np, u32 addr) 7967 { 7968 u64 frame, frame_base = (ESPC_PIO_STAT_READ_START | 7969 (addr << ESPC_PIO_STAT_ADDR_SHIFT)); 7970 int limit; 7971 7972 if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT)) 7973 return -EINVAL; 7974 7975 frame = frame_base; 7976 nw64(ESPC_PIO_STAT, frame); 7977 limit = 64; 7978 do { 7979 udelay(5); 7980 frame = nr64(ESPC_PIO_STAT); 7981 if (frame & ESPC_PIO_STAT_READ_END) 7982 break; 7983 } while (limit--); 7984 if (!(frame & ESPC_PIO_STAT_READ_END)) { 7985 dev_err(np->device, "EEPROM read timeout frame[%llx]\n", 7986 (unsigned long long) frame); 7987 return -ENODEV; 7988 } 7989 7990 frame = frame_base; 7991 nw64(ESPC_PIO_STAT, frame); 7992 limit = 64; 7993 do { 7994 udelay(5); 7995 frame = nr64(ESPC_PIO_STAT); 7996 if (frame & ESPC_PIO_STAT_READ_END) 7997 break; 7998 } while (limit--); 7999 if (!(frame & ESPC_PIO_STAT_READ_END)) { 8000 dev_err(np->device, "EEPROM read timeout frame[%llx]\n", 8001 (unsigned long long) frame); 8002 return -ENODEV; 8003 } 8004 8005 frame = nr64(ESPC_PIO_STAT); 8006 return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT; 8007 } 8008 8009 static int niu_pci_eeprom_read16(struct niu *np, u32 off) 8010 { 8011 int err = niu_pci_eeprom_read(np, off); 8012 u16 val; 8013 8014 if (err < 0) 8015 return err; 8016 val = (err << 8); 8017 err = niu_pci_eeprom_read(np, off + 1); 8018 if (err < 0) 8019 return err; 8020 val |= (err & 0xff); 8021 8022 return val; 8023 } 8024 8025 static int niu_pci_eeprom_read16_swp(struct niu *np, u32 off) 8026 { 8027 int err = niu_pci_eeprom_read(np, off); 8028 u16 val; 8029 8030 if (err < 0) 8031 return err; 8032 8033 val = (err & 0xff); 8034 err = niu_pci_eeprom_read(np, off + 1); 8035 if (err < 0) 8036 return err; 8037 8038 val |= (err & 0xff) << 8; 8039 8040 return val; 8041 } 8042 8043 static int niu_pci_vpd_get_propname(struct niu *np, u32 off, char *namebuf, 8044 int namebuf_len) 8045 { 8046 int i; 8047 8048 for (i = 0; i < namebuf_len; i++) { 8049 int err = niu_pci_eeprom_read(np, off + i); 8050 if (err < 0) 8051 return err; 8052 *namebuf++ = err; 8053 if (!err) 8054 break; 8055 } 8056 if (i >= namebuf_len) 8057 return -EINVAL; 8058 8059 return i + 1; 8060 } 8061 8062 static void niu_vpd_parse_version(struct niu *np) 8063 { 8064 struct niu_vpd *vpd = &np->vpd; 8065 int len = strlen(vpd->version) + 1; 8066 const char *s = vpd->version; 8067 int i; 8068 8069 for (i = 0; i < len - 5; i++) { 8070 if (!strncmp(s + i, "FCode ", 6)) 8071 break; 8072 } 8073 if (i >= len - 5) 8074 return; 8075 8076 s += i + 5; 8077 sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor); 8078 8079 netif_printk(np, probe, KERN_DEBUG, np->dev, 8080 "VPD_SCAN: FCODE major(%d) minor(%d)\n", 8081 vpd->fcode_major, vpd->fcode_minor); 8082 if (vpd->fcode_major > NIU_VPD_MIN_MAJOR || 8083 (vpd->fcode_major == NIU_VPD_MIN_MAJOR && 8084 vpd->fcode_minor >= NIU_VPD_MIN_MINOR)) 8085 np->flags |= NIU_FLAGS_VPD_VALID; 8086 } 8087 8088 /* ESPC_PIO_EN_ENABLE must be set */ 8089 static int niu_pci_vpd_scan_props(struct niu *np, u32 start, u32 end) 8090 { 8091 unsigned int found_mask = 0; 8092 #define FOUND_MASK_MODEL 0x00000001 8093 #define FOUND_MASK_BMODEL 0x00000002 8094 #define FOUND_MASK_VERS 0x00000004 8095 #define FOUND_MASK_MAC 0x00000008 8096 #define FOUND_MASK_NMAC 0x00000010 8097 #define FOUND_MASK_PHY 0x00000020 8098 #define FOUND_MASK_ALL 0x0000003f 8099 8100 netif_printk(np, probe, KERN_DEBUG, np->dev, 8101 "VPD_SCAN: start[%x] end[%x]\n", start, end); 8102 while (start < end) { 8103 int len, err, prop_len; 8104 char namebuf[64]; 8105 u8 *prop_buf; 8106 int max_len; 8107 8108 if (found_mask == FOUND_MASK_ALL) { 8109 niu_vpd_parse_version(np); 8110 return 1; 8111 } 8112 8113 err = niu_pci_eeprom_read(np, start + 2); 8114 if (err < 0) 8115 return err; 8116 len = err; 8117 start += 3; 8118 8119 prop_len = niu_pci_eeprom_read(np, start + 4); 8120 err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64); 8121 if (err < 0) 8122 return err; 8123 8124 prop_buf = NULL; 8125 max_len = 0; 8126 if (!strcmp(namebuf, "model")) { 8127 prop_buf = np->vpd.model; 8128 max_len = NIU_VPD_MODEL_MAX; 8129 found_mask |= FOUND_MASK_MODEL; 8130 } else if (!strcmp(namebuf, "board-model")) { 8131 prop_buf = np->vpd.board_model; 8132 max_len = NIU_VPD_BD_MODEL_MAX; 8133 found_mask |= FOUND_MASK_BMODEL; 8134 } else if (!strcmp(namebuf, "version")) { 8135 prop_buf = np->vpd.version; 8136 max_len = NIU_VPD_VERSION_MAX; 8137 found_mask |= FOUND_MASK_VERS; 8138 } else if (!strcmp(namebuf, "local-mac-address")) { 8139 prop_buf = np->vpd.local_mac; 8140 max_len = ETH_ALEN; 8141 found_mask |= FOUND_MASK_MAC; 8142 } else if (!strcmp(namebuf, "num-mac-addresses")) { 8143 prop_buf = &np->vpd.mac_num; 8144 max_len = 1; 8145 found_mask |= FOUND_MASK_NMAC; 8146 } else if (!strcmp(namebuf, "phy-type")) { 8147 prop_buf = np->vpd.phy_type; 8148 max_len = NIU_VPD_PHY_TYPE_MAX; 8149 found_mask |= FOUND_MASK_PHY; 8150 } 8151 8152 if (max_len && prop_len > max_len) { 8153 dev_err(np->device, "Property '%s' length (%d) is too long\n", namebuf, prop_len); 8154 return -EINVAL; 8155 } 8156 8157 if (prop_buf) { 8158 u32 off = start + 5 + err; 8159 int i; 8160 8161 netif_printk(np, probe, KERN_DEBUG, np->dev, 8162 "VPD_SCAN: Reading in property [%s] len[%d]\n", 8163 namebuf, prop_len); 8164 for (i = 0; i < prop_len; i++) 8165 *prop_buf++ = niu_pci_eeprom_read(np, off + i); 8166 } 8167 8168 start += len; 8169 } 8170 8171 return 0; 8172 } 8173 8174 /* ESPC_PIO_EN_ENABLE must be set */ 8175 static void niu_pci_vpd_fetch(struct niu *np, u32 start) 8176 { 8177 u32 offset; 8178 int err; 8179 8180 err = niu_pci_eeprom_read16_swp(np, start + 1); 8181 if (err < 0) 8182 return; 8183 8184 offset = err + 3; 8185 8186 while (start + offset < ESPC_EEPROM_SIZE) { 8187 u32 here = start + offset; 8188 u32 end; 8189 8190 err = niu_pci_eeprom_read(np, here); 8191 if (err != 0x90) 8192 return; 8193 8194 err = niu_pci_eeprom_read16_swp(np, here + 1); 8195 if (err < 0) 8196 return; 8197 8198 here = start + offset + 3; 8199 end = start + offset + err; 8200 8201 offset += err; 8202 8203 err = niu_pci_vpd_scan_props(np, here, end); 8204 if (err < 0 || err == 1) 8205 return; 8206 } 8207 } 8208 8209 /* ESPC_PIO_EN_ENABLE must be set */ 8210 static u32 niu_pci_vpd_offset(struct niu *np) 8211 { 8212 u32 start = 0, end = ESPC_EEPROM_SIZE, ret; 8213 int err; 8214 8215 while (start < end) { 8216 ret = start; 8217 8218 /* ROM header signature? */ 8219 err = niu_pci_eeprom_read16(np, start + 0); 8220 if (err != 0x55aa) 8221 return 0; 8222 8223 /* Apply offset to PCI data structure. */ 8224 err = niu_pci_eeprom_read16(np, start + 23); 8225 if (err < 0) 8226 return 0; 8227 start += err; 8228 8229 /* Check for "PCIR" signature. */ 8230 err = niu_pci_eeprom_read16(np, start + 0); 8231 if (err != 0x5043) 8232 return 0; 8233 err = niu_pci_eeprom_read16(np, start + 2); 8234 if (err != 0x4952) 8235 return 0; 8236 8237 /* Check for OBP image type. */ 8238 err = niu_pci_eeprom_read(np, start + 20); 8239 if (err < 0) 8240 return 0; 8241 if (err != 0x01) { 8242 err = niu_pci_eeprom_read(np, ret + 2); 8243 if (err < 0) 8244 return 0; 8245 8246 start = ret + (err * 512); 8247 continue; 8248 } 8249 8250 err = niu_pci_eeprom_read16_swp(np, start + 8); 8251 if (err < 0) 8252 return err; 8253 ret += err; 8254 8255 err = niu_pci_eeprom_read(np, ret + 0); 8256 if (err != 0x82) 8257 return 0; 8258 8259 return ret; 8260 } 8261 8262 return 0; 8263 } 8264 8265 static int niu_phy_type_prop_decode(struct niu *np, const char *phy_prop) 8266 { 8267 if (!strcmp(phy_prop, "mif")) { 8268 /* 1G copper, MII */ 8269 np->flags &= ~(NIU_FLAGS_FIBER | 8270 NIU_FLAGS_10G); 8271 np->mac_xcvr = MAC_XCVR_MII; 8272 } else if (!strcmp(phy_prop, "xgf")) { 8273 /* 10G fiber, XPCS */ 8274 np->flags |= (NIU_FLAGS_10G | 8275 NIU_FLAGS_FIBER); 8276 np->mac_xcvr = MAC_XCVR_XPCS; 8277 } else if (!strcmp(phy_prop, "pcs")) { 8278 /* 1G fiber, PCS */ 8279 np->flags &= ~NIU_FLAGS_10G; 8280 np->flags |= NIU_FLAGS_FIBER; 8281 np->mac_xcvr = MAC_XCVR_PCS; 8282 } else if (!strcmp(phy_prop, "xgc")) { 8283 /* 10G copper, XPCS */ 8284 np->flags |= NIU_FLAGS_10G; 8285 np->flags &= ~NIU_FLAGS_FIBER; 8286 np->mac_xcvr = MAC_XCVR_XPCS; 8287 } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) { 8288 /* 10G Serdes or 1G Serdes, default to 10G */ 8289 np->flags |= NIU_FLAGS_10G; 8290 np->flags &= ~NIU_FLAGS_FIBER; 8291 np->flags |= NIU_FLAGS_XCVR_SERDES; 8292 np->mac_xcvr = MAC_XCVR_XPCS; 8293 } else { 8294 return -EINVAL; 8295 } 8296 return 0; 8297 } 8298 8299 static int niu_pci_vpd_get_nports(struct niu *np) 8300 { 8301 int ports = 0; 8302 8303 if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) || 8304 (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) || 8305 (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) || 8306 (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) || 8307 (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) { 8308 ports = 4; 8309 } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) || 8310 (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) || 8311 (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) || 8312 (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) { 8313 ports = 2; 8314 } 8315 8316 return ports; 8317 } 8318 8319 static void niu_pci_vpd_validate(struct niu *np) 8320 { 8321 struct net_device *dev = np->dev; 8322 struct niu_vpd *vpd = &np->vpd; 8323 u8 val8; 8324 8325 if (!is_valid_ether_addr(&vpd->local_mac[0])) { 8326 dev_err(np->device, "VPD MAC invalid, falling back to SPROM\n"); 8327 8328 np->flags &= ~NIU_FLAGS_VPD_VALID; 8329 return; 8330 } 8331 8332 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || 8333 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { 8334 np->flags |= NIU_FLAGS_10G; 8335 np->flags &= ~NIU_FLAGS_FIBER; 8336 np->flags |= NIU_FLAGS_XCVR_SERDES; 8337 np->mac_xcvr = MAC_XCVR_PCS; 8338 if (np->port > 1) { 8339 np->flags |= NIU_FLAGS_FIBER; 8340 np->flags &= ~NIU_FLAGS_10G; 8341 } 8342 if (np->flags & NIU_FLAGS_10G) 8343 np->mac_xcvr = MAC_XCVR_XPCS; 8344 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { 8345 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | 8346 NIU_FLAGS_HOTPLUG_PHY); 8347 } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { 8348 dev_err(np->device, "Illegal phy string [%s]\n", 8349 np->vpd.phy_type); 8350 dev_err(np->device, "Falling back to SPROM\n"); 8351 np->flags &= ~NIU_FLAGS_VPD_VALID; 8352 return; 8353 } 8354 8355 memcpy(dev->dev_addr, vpd->local_mac, ETH_ALEN); 8356 8357 val8 = dev->dev_addr[5]; 8358 dev->dev_addr[5] += np->port; 8359 if (dev->dev_addr[5] < val8) 8360 dev->dev_addr[4]++; 8361 } 8362 8363 static int niu_pci_probe_sprom(struct niu *np) 8364 { 8365 struct net_device *dev = np->dev; 8366 int len, i; 8367 u64 val, sum; 8368 u8 val8; 8369 8370 val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ); 8371 val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT; 8372 len = val / 4; 8373 8374 np->eeprom_len = len; 8375 8376 netif_printk(np, probe, KERN_DEBUG, np->dev, 8377 "SPROM: Image size %llu\n", (unsigned long long)val); 8378 8379 sum = 0; 8380 for (i = 0; i < len; i++) { 8381 val = nr64(ESPC_NCR(i)); 8382 sum += (val >> 0) & 0xff; 8383 sum += (val >> 8) & 0xff; 8384 sum += (val >> 16) & 0xff; 8385 sum += (val >> 24) & 0xff; 8386 } 8387 netif_printk(np, probe, KERN_DEBUG, np->dev, 8388 "SPROM: Checksum %x\n", (int)(sum & 0xff)); 8389 if ((sum & 0xff) != 0xab) { 8390 dev_err(np->device, "Bad SPROM checksum (%x, should be 0xab)\n", (int)(sum & 0xff)); 8391 return -EINVAL; 8392 } 8393 8394 val = nr64(ESPC_PHY_TYPE); 8395 switch (np->port) { 8396 case 0: 8397 val8 = (val & ESPC_PHY_TYPE_PORT0) >> 8398 ESPC_PHY_TYPE_PORT0_SHIFT; 8399 break; 8400 case 1: 8401 val8 = (val & ESPC_PHY_TYPE_PORT1) >> 8402 ESPC_PHY_TYPE_PORT1_SHIFT; 8403 break; 8404 case 2: 8405 val8 = (val & ESPC_PHY_TYPE_PORT2) >> 8406 ESPC_PHY_TYPE_PORT2_SHIFT; 8407 break; 8408 case 3: 8409 val8 = (val & ESPC_PHY_TYPE_PORT3) >> 8410 ESPC_PHY_TYPE_PORT3_SHIFT; 8411 break; 8412 default: 8413 dev_err(np->device, "Bogus port number %u\n", 8414 np->port); 8415 return -EINVAL; 8416 } 8417 netif_printk(np, probe, KERN_DEBUG, np->dev, 8418 "SPROM: PHY type %x\n", val8); 8419 8420 switch (val8) { 8421 case ESPC_PHY_TYPE_1G_COPPER: 8422 /* 1G copper, MII */ 8423 np->flags &= ~(NIU_FLAGS_FIBER | 8424 NIU_FLAGS_10G); 8425 np->mac_xcvr = MAC_XCVR_MII; 8426 break; 8427 8428 case ESPC_PHY_TYPE_1G_FIBER: 8429 /* 1G fiber, PCS */ 8430 np->flags &= ~NIU_FLAGS_10G; 8431 np->flags |= NIU_FLAGS_FIBER; 8432 np->mac_xcvr = MAC_XCVR_PCS; 8433 break; 8434 8435 case ESPC_PHY_TYPE_10G_COPPER: 8436 /* 10G copper, XPCS */ 8437 np->flags |= NIU_FLAGS_10G; 8438 np->flags &= ~NIU_FLAGS_FIBER; 8439 np->mac_xcvr = MAC_XCVR_XPCS; 8440 break; 8441 8442 case ESPC_PHY_TYPE_10G_FIBER: 8443 /* 10G fiber, XPCS */ 8444 np->flags |= (NIU_FLAGS_10G | 8445 NIU_FLAGS_FIBER); 8446 np->mac_xcvr = MAC_XCVR_XPCS; 8447 break; 8448 8449 default: 8450 dev_err(np->device, "Bogus SPROM phy type %u\n", val8); 8451 return -EINVAL; 8452 } 8453 8454 val = nr64(ESPC_MAC_ADDR0); 8455 netif_printk(np, probe, KERN_DEBUG, np->dev, 8456 "SPROM: MAC_ADDR0[%08llx]\n", (unsigned long long)val); 8457 dev->dev_addr[0] = (val >> 0) & 0xff; 8458 dev->dev_addr[1] = (val >> 8) & 0xff; 8459 dev->dev_addr[2] = (val >> 16) & 0xff; 8460 dev->dev_addr[3] = (val >> 24) & 0xff; 8461 8462 val = nr64(ESPC_MAC_ADDR1); 8463 netif_printk(np, probe, KERN_DEBUG, np->dev, 8464 "SPROM: MAC_ADDR1[%08llx]\n", (unsigned long long)val); 8465 dev->dev_addr[4] = (val >> 0) & 0xff; 8466 dev->dev_addr[5] = (val >> 8) & 0xff; 8467 8468 if (!is_valid_ether_addr(&dev->dev_addr[0])) { 8469 dev_err(np->device, "SPROM MAC address invalid [ %pM ]\n", 8470 dev->dev_addr); 8471 return -EINVAL; 8472 } 8473 8474 val8 = dev->dev_addr[5]; 8475 dev->dev_addr[5] += np->port; 8476 if (dev->dev_addr[5] < val8) 8477 dev->dev_addr[4]++; 8478 8479 val = nr64(ESPC_MOD_STR_LEN); 8480 netif_printk(np, probe, KERN_DEBUG, np->dev, 8481 "SPROM: MOD_STR_LEN[%llu]\n", (unsigned long long)val); 8482 if (val >= 8 * 4) 8483 return -EINVAL; 8484 8485 for (i = 0; i < val; i += 4) { 8486 u64 tmp = nr64(ESPC_NCR(5 + (i / 4))); 8487 8488 np->vpd.model[i + 3] = (tmp >> 0) & 0xff; 8489 np->vpd.model[i + 2] = (tmp >> 8) & 0xff; 8490 np->vpd.model[i + 1] = (tmp >> 16) & 0xff; 8491 np->vpd.model[i + 0] = (tmp >> 24) & 0xff; 8492 } 8493 np->vpd.model[val] = '\0'; 8494 8495 val = nr64(ESPC_BD_MOD_STR_LEN); 8496 netif_printk(np, probe, KERN_DEBUG, np->dev, 8497 "SPROM: BD_MOD_STR_LEN[%llu]\n", (unsigned long long)val); 8498 if (val >= 4 * 4) 8499 return -EINVAL; 8500 8501 for (i = 0; i < val; i += 4) { 8502 u64 tmp = nr64(ESPC_NCR(14 + (i / 4))); 8503 8504 np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff; 8505 np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff; 8506 np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff; 8507 np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff; 8508 } 8509 np->vpd.board_model[val] = '\0'; 8510 8511 np->vpd.mac_num = 8512 nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; 8513 netif_printk(np, probe, KERN_DEBUG, np->dev, 8514 "SPROM: NUM_PORTS_MACS[%d]\n", np->vpd.mac_num); 8515 8516 return 0; 8517 } 8518 8519 static int niu_get_and_validate_port(struct niu *np) 8520 { 8521 struct niu_parent *parent = np->parent; 8522 8523 if (np->port <= 1) 8524 np->flags |= NIU_FLAGS_XMAC; 8525 8526 if (!parent->num_ports) { 8527 if (parent->plat_type == PLAT_TYPE_NIU) { 8528 parent->num_ports = 2; 8529 } else { 8530 parent->num_ports = niu_pci_vpd_get_nports(np); 8531 if (!parent->num_ports) { 8532 /* Fall back to SPROM as last resort. 8533 * This will fail on most cards. 8534 */ 8535 parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & 8536 ESPC_NUM_PORTS_MACS_VAL; 8537 8538 /* All of the current probing methods fail on 8539 * Maramba on-board parts. 8540 */ 8541 if (!parent->num_ports) 8542 parent->num_ports = 4; 8543 } 8544 } 8545 } 8546 8547 if (np->port >= parent->num_ports) 8548 return -ENODEV; 8549 8550 return 0; 8551 } 8552 8553 static int phy_record(struct niu_parent *parent, struct phy_probe_info *p, 8554 int dev_id_1, int dev_id_2, u8 phy_port, int type) 8555 { 8556 u32 id = (dev_id_1 << 16) | dev_id_2; 8557 u8 idx; 8558 8559 if (dev_id_1 < 0 || dev_id_2 < 0) 8560 return 0; 8561 if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) { 8562 /* Because of the NIU_PHY_ID_MASK being applied, the 8704 8563 * test covers the 8706 as well. 8564 */ 8565 if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) && 8566 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011)) 8567 return 0; 8568 } else { 8569 if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R) 8570 return 0; 8571 } 8572 8573 pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n", 8574 parent->index, id, 8575 type == PHY_TYPE_PMA_PMD ? "PMA/PMD" : 8576 type == PHY_TYPE_PCS ? "PCS" : "MII", 8577 phy_port); 8578 8579 if (p->cur[type] >= NIU_MAX_PORTS) { 8580 pr_err("Too many PHY ports\n"); 8581 return -EINVAL; 8582 } 8583 idx = p->cur[type]; 8584 p->phy_id[type][idx] = id; 8585 p->phy_port[type][idx] = phy_port; 8586 p->cur[type] = idx + 1; 8587 return 0; 8588 } 8589 8590 static int port_has_10g(struct phy_probe_info *p, int port) 8591 { 8592 int i; 8593 8594 for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) { 8595 if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port) 8596 return 1; 8597 } 8598 for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) { 8599 if (p->phy_port[PHY_TYPE_PCS][i] == port) 8600 return 1; 8601 } 8602 8603 return 0; 8604 } 8605 8606 static int count_10g_ports(struct phy_probe_info *p, int *lowest) 8607 { 8608 int port, cnt; 8609 8610 cnt = 0; 8611 *lowest = 32; 8612 for (port = 8; port < 32; port++) { 8613 if (port_has_10g(p, port)) { 8614 if (!cnt) 8615 *lowest = port; 8616 cnt++; 8617 } 8618 } 8619 8620 return cnt; 8621 } 8622 8623 static int count_1g_ports(struct phy_probe_info *p, int *lowest) 8624 { 8625 *lowest = 32; 8626 if (p->cur[PHY_TYPE_MII]) 8627 *lowest = p->phy_port[PHY_TYPE_MII][0]; 8628 8629 return p->cur[PHY_TYPE_MII]; 8630 } 8631 8632 static void niu_n2_divide_channels(struct niu_parent *parent) 8633 { 8634 int num_ports = parent->num_ports; 8635 int i; 8636 8637 for (i = 0; i < num_ports; i++) { 8638 parent->rxchan_per_port[i] = (16 / num_ports); 8639 parent->txchan_per_port[i] = (16 / num_ports); 8640 8641 pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", 8642 parent->index, i, 8643 parent->rxchan_per_port[i], 8644 parent->txchan_per_port[i]); 8645 } 8646 } 8647 8648 static void niu_divide_channels(struct niu_parent *parent, 8649 int num_10g, int num_1g) 8650 { 8651 int num_ports = parent->num_ports; 8652 int rx_chans_per_10g, rx_chans_per_1g; 8653 int tx_chans_per_10g, tx_chans_per_1g; 8654 int i, tot_rx, tot_tx; 8655 8656 if (!num_10g || !num_1g) { 8657 rx_chans_per_10g = rx_chans_per_1g = 8658 (NIU_NUM_RXCHAN / num_ports); 8659 tx_chans_per_10g = tx_chans_per_1g = 8660 (NIU_NUM_TXCHAN / num_ports); 8661 } else { 8662 rx_chans_per_1g = NIU_NUM_RXCHAN / 8; 8663 rx_chans_per_10g = (NIU_NUM_RXCHAN - 8664 (rx_chans_per_1g * num_1g)) / 8665 num_10g; 8666 8667 tx_chans_per_1g = NIU_NUM_TXCHAN / 6; 8668 tx_chans_per_10g = (NIU_NUM_TXCHAN - 8669 (tx_chans_per_1g * num_1g)) / 8670 num_10g; 8671 } 8672 8673 tot_rx = tot_tx = 0; 8674 for (i = 0; i < num_ports; i++) { 8675 int type = phy_decode(parent->port_phy, i); 8676 8677 if (type == PORT_TYPE_10G) { 8678 parent->rxchan_per_port[i] = rx_chans_per_10g; 8679 parent->txchan_per_port[i] = tx_chans_per_10g; 8680 } else { 8681 parent->rxchan_per_port[i] = rx_chans_per_1g; 8682 parent->txchan_per_port[i] = tx_chans_per_1g; 8683 } 8684 pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", 8685 parent->index, i, 8686 parent->rxchan_per_port[i], 8687 parent->txchan_per_port[i]); 8688 tot_rx += parent->rxchan_per_port[i]; 8689 tot_tx += parent->txchan_per_port[i]; 8690 } 8691 8692 if (tot_rx > NIU_NUM_RXCHAN) { 8693 pr_err("niu%d: Too many RX channels (%d), resetting to one per port\n", 8694 parent->index, tot_rx); 8695 for (i = 0; i < num_ports; i++) 8696 parent->rxchan_per_port[i] = 1; 8697 } 8698 if (tot_tx > NIU_NUM_TXCHAN) { 8699 pr_err("niu%d: Too many TX channels (%d), resetting to one per port\n", 8700 parent->index, tot_tx); 8701 for (i = 0; i < num_ports; i++) 8702 parent->txchan_per_port[i] = 1; 8703 } 8704 if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) { 8705 pr_warn("niu%d: Driver bug, wasted channels, RX[%d] TX[%d]\n", 8706 parent->index, tot_rx, tot_tx); 8707 } 8708 } 8709 8710 static void niu_divide_rdc_groups(struct niu_parent *parent, 8711 int num_10g, int num_1g) 8712 { 8713 int i, num_ports = parent->num_ports; 8714 int rdc_group, rdc_groups_per_port; 8715 int rdc_channel_base; 8716 8717 rdc_group = 0; 8718 rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports; 8719 8720 rdc_channel_base = 0; 8721 8722 for (i = 0; i < num_ports; i++) { 8723 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i]; 8724 int grp, num_channels = parent->rxchan_per_port[i]; 8725 int this_channel_offset; 8726 8727 tp->first_table_num = rdc_group; 8728 tp->num_tables = rdc_groups_per_port; 8729 this_channel_offset = 0; 8730 for (grp = 0; grp < tp->num_tables; grp++) { 8731 struct rdc_table *rt = &tp->tables[grp]; 8732 int slot; 8733 8734 pr_info("niu%d: Port %d RDC tbl(%d) [ ", 8735 parent->index, i, tp->first_table_num + grp); 8736 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) { 8737 rt->rxdma_channel[slot] = 8738 rdc_channel_base + this_channel_offset; 8739 8740 pr_cont("%d ", rt->rxdma_channel[slot]); 8741 8742 if (++this_channel_offset == num_channels) 8743 this_channel_offset = 0; 8744 } 8745 pr_cont("]\n"); 8746 } 8747 8748 parent->rdc_default[i] = rdc_channel_base; 8749 8750 rdc_channel_base += num_channels; 8751 rdc_group += rdc_groups_per_port; 8752 } 8753 } 8754 8755 static int fill_phy_probe_info(struct niu *np, struct niu_parent *parent, 8756 struct phy_probe_info *info) 8757 { 8758 unsigned long flags; 8759 int port, err; 8760 8761 memset(info, 0, sizeof(*info)); 8762 8763 /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */ 8764 niu_lock_parent(np, flags); 8765 err = 0; 8766 for (port = 8; port < 32; port++) { 8767 int dev_id_1, dev_id_2; 8768 8769 dev_id_1 = mdio_read(np, port, 8770 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1); 8771 dev_id_2 = mdio_read(np, port, 8772 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2); 8773 err = phy_record(parent, info, dev_id_1, dev_id_2, port, 8774 PHY_TYPE_PMA_PMD); 8775 if (err) 8776 break; 8777 dev_id_1 = mdio_read(np, port, 8778 NIU_PCS_DEV_ADDR, MII_PHYSID1); 8779 dev_id_2 = mdio_read(np, port, 8780 NIU_PCS_DEV_ADDR, MII_PHYSID2); 8781 err = phy_record(parent, info, dev_id_1, dev_id_2, port, 8782 PHY_TYPE_PCS); 8783 if (err) 8784 break; 8785 dev_id_1 = mii_read(np, port, MII_PHYSID1); 8786 dev_id_2 = mii_read(np, port, MII_PHYSID2); 8787 err = phy_record(parent, info, dev_id_1, dev_id_2, port, 8788 PHY_TYPE_MII); 8789 if (err) 8790 break; 8791 } 8792 niu_unlock_parent(np, flags); 8793 8794 return err; 8795 } 8796 8797 static int walk_phys(struct niu *np, struct niu_parent *parent) 8798 { 8799 struct phy_probe_info *info = &parent->phy_probe_info; 8800 int lowest_10g, lowest_1g; 8801 int num_10g, num_1g; 8802 u32 val; 8803 int err; 8804 8805 num_10g = num_1g = 0; 8806 8807 if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || 8808 !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { 8809 num_10g = 0; 8810 num_1g = 2; 8811 parent->plat_type = PLAT_TYPE_ATCA_CP3220; 8812 parent->num_ports = 4; 8813 val = (phy_encode(PORT_TYPE_1G, 0) | 8814 phy_encode(PORT_TYPE_1G, 1) | 8815 phy_encode(PORT_TYPE_1G, 2) | 8816 phy_encode(PORT_TYPE_1G, 3)); 8817 } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { 8818 num_10g = 2; 8819 num_1g = 0; 8820 parent->num_ports = 2; 8821 val = (phy_encode(PORT_TYPE_10G, 0) | 8822 phy_encode(PORT_TYPE_10G, 1)); 8823 } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) && 8824 (parent->plat_type == PLAT_TYPE_NIU)) { 8825 /* this is the Monza case */ 8826 if (np->flags & NIU_FLAGS_10G) { 8827 val = (phy_encode(PORT_TYPE_10G, 0) | 8828 phy_encode(PORT_TYPE_10G, 1)); 8829 } else { 8830 val = (phy_encode(PORT_TYPE_1G, 0) | 8831 phy_encode(PORT_TYPE_1G, 1)); 8832 } 8833 } else { 8834 err = fill_phy_probe_info(np, parent, info); 8835 if (err) 8836 return err; 8837 8838 num_10g = count_10g_ports(info, &lowest_10g); 8839 num_1g = count_1g_ports(info, &lowest_1g); 8840 8841 switch ((num_10g << 4) | num_1g) { 8842 case 0x24: 8843 if (lowest_1g == 10) 8844 parent->plat_type = PLAT_TYPE_VF_P0; 8845 else if (lowest_1g == 26) 8846 parent->plat_type = PLAT_TYPE_VF_P1; 8847 else 8848 goto unknown_vg_1g_port; 8849 8850 /* fallthru */ 8851 case 0x22: 8852 val = (phy_encode(PORT_TYPE_10G, 0) | 8853 phy_encode(PORT_TYPE_10G, 1) | 8854 phy_encode(PORT_TYPE_1G, 2) | 8855 phy_encode(PORT_TYPE_1G, 3)); 8856 break; 8857 8858 case 0x20: 8859 val = (phy_encode(PORT_TYPE_10G, 0) | 8860 phy_encode(PORT_TYPE_10G, 1)); 8861 break; 8862 8863 case 0x10: 8864 val = phy_encode(PORT_TYPE_10G, np->port); 8865 break; 8866 8867 case 0x14: 8868 if (lowest_1g == 10) 8869 parent->plat_type = PLAT_TYPE_VF_P0; 8870 else if (lowest_1g == 26) 8871 parent->plat_type = PLAT_TYPE_VF_P1; 8872 else 8873 goto unknown_vg_1g_port; 8874 8875 /* fallthru */ 8876 case 0x13: 8877 if ((lowest_10g & 0x7) == 0) 8878 val = (phy_encode(PORT_TYPE_10G, 0) | 8879 phy_encode(PORT_TYPE_1G, 1) | 8880 phy_encode(PORT_TYPE_1G, 2) | 8881 phy_encode(PORT_TYPE_1G, 3)); 8882 else 8883 val = (phy_encode(PORT_TYPE_1G, 0) | 8884 phy_encode(PORT_TYPE_10G, 1) | 8885 phy_encode(PORT_TYPE_1G, 2) | 8886 phy_encode(PORT_TYPE_1G, 3)); 8887 break; 8888 8889 case 0x04: 8890 if (lowest_1g == 10) 8891 parent->plat_type = PLAT_TYPE_VF_P0; 8892 else if (lowest_1g == 26) 8893 parent->plat_type = PLAT_TYPE_VF_P1; 8894 else 8895 goto unknown_vg_1g_port; 8896 8897 val = (phy_encode(PORT_TYPE_1G, 0) | 8898 phy_encode(PORT_TYPE_1G, 1) | 8899 phy_encode(PORT_TYPE_1G, 2) | 8900 phy_encode(PORT_TYPE_1G, 3)); 8901 break; 8902 8903 default: 8904 pr_err("Unsupported port config 10G[%d] 1G[%d]\n", 8905 num_10g, num_1g); 8906 return -EINVAL; 8907 } 8908 } 8909 8910 parent->port_phy = val; 8911 8912 if (parent->plat_type == PLAT_TYPE_NIU) 8913 niu_n2_divide_channels(parent); 8914 else 8915 niu_divide_channels(parent, num_10g, num_1g); 8916 8917 niu_divide_rdc_groups(parent, num_10g, num_1g); 8918 8919 return 0; 8920 8921 unknown_vg_1g_port: 8922 pr_err("Cannot identify platform type, 1gport=%d\n", lowest_1g); 8923 return -EINVAL; 8924 } 8925 8926 static int niu_probe_ports(struct niu *np) 8927 { 8928 struct niu_parent *parent = np->parent; 8929 int err, i; 8930 8931 if (parent->port_phy == PORT_PHY_UNKNOWN) { 8932 err = walk_phys(np, parent); 8933 if (err) 8934 return err; 8935 8936 niu_set_ldg_timer_res(np, 2); 8937 for (i = 0; i <= LDN_MAX; i++) 8938 niu_ldn_irq_enable(np, i, 0); 8939 } 8940 8941 if (parent->port_phy == PORT_PHY_INVALID) 8942 return -EINVAL; 8943 8944 return 0; 8945 } 8946 8947 static int niu_classifier_swstate_init(struct niu *np) 8948 { 8949 struct niu_classifier *cp = &np->clas; 8950 8951 cp->tcam_top = (u16) np->port; 8952 cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports; 8953 cp->h1_init = 0xffffffff; 8954 cp->h2_init = 0xffff; 8955 8956 return fflp_early_init(np); 8957 } 8958 8959 static void niu_link_config_init(struct niu *np) 8960 { 8961 struct niu_link_config *lp = &np->link_config; 8962 8963 lp->advertising = (ADVERTISED_10baseT_Half | 8964 ADVERTISED_10baseT_Full | 8965 ADVERTISED_100baseT_Half | 8966 ADVERTISED_100baseT_Full | 8967 ADVERTISED_1000baseT_Half | 8968 ADVERTISED_1000baseT_Full | 8969 ADVERTISED_10000baseT_Full | 8970 ADVERTISED_Autoneg); 8971 lp->speed = lp->active_speed = SPEED_INVALID; 8972 lp->duplex = DUPLEX_FULL; 8973 lp->active_duplex = DUPLEX_INVALID; 8974 lp->autoneg = 1; 8975 #if 0 8976 lp->loopback_mode = LOOPBACK_MAC; 8977 lp->active_speed = SPEED_10000; 8978 lp->active_duplex = DUPLEX_FULL; 8979 #else 8980 lp->loopback_mode = LOOPBACK_DISABLED; 8981 #endif 8982 } 8983 8984 static int niu_init_mac_ipp_pcs_base(struct niu *np) 8985 { 8986 switch (np->port) { 8987 case 0: 8988 np->mac_regs = np->regs + XMAC_PORT0_OFF; 8989 np->ipp_off = 0x00000; 8990 np->pcs_off = 0x04000; 8991 np->xpcs_off = 0x02000; 8992 break; 8993 8994 case 1: 8995 np->mac_regs = np->regs + XMAC_PORT1_OFF; 8996 np->ipp_off = 0x08000; 8997 np->pcs_off = 0x0a000; 8998 np->xpcs_off = 0x08000; 8999 break; 9000 9001 case 2: 9002 np->mac_regs = np->regs + BMAC_PORT2_OFF; 9003 np->ipp_off = 0x04000; 9004 np->pcs_off = 0x0e000; 9005 np->xpcs_off = ~0UL; 9006 break; 9007 9008 case 3: 9009 np->mac_regs = np->regs + BMAC_PORT3_OFF; 9010 np->ipp_off = 0x0c000; 9011 np->pcs_off = 0x12000; 9012 np->xpcs_off = ~0UL; 9013 break; 9014 9015 default: 9016 dev_err(np->device, "Port %u is invalid, cannot compute MAC block offset\n", np->port); 9017 return -EINVAL; 9018 } 9019 9020 return 0; 9021 } 9022 9023 static void niu_try_msix(struct niu *np, u8 *ldg_num_map) 9024 { 9025 struct msix_entry msi_vec[NIU_NUM_LDG]; 9026 struct niu_parent *parent = np->parent; 9027 struct pci_dev *pdev = np->pdev; 9028 int i, num_irqs; 9029 u8 first_ldg; 9030 9031 first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; 9032 for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) 9033 ldg_num_map[i] = first_ldg + i; 9034 9035 num_irqs = (parent->rxchan_per_port[np->port] + 9036 parent->txchan_per_port[np->port] + 9037 (np->port == 0 ? 3 : 1)); 9038 BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports)); 9039 9040 for (i = 0; i < num_irqs; i++) { 9041 msi_vec[i].vector = 0; 9042 msi_vec[i].entry = i; 9043 } 9044 9045 num_irqs = pci_enable_msix_range(pdev, msi_vec, 1, num_irqs); 9046 if (num_irqs < 0) { 9047 np->flags &= ~NIU_FLAGS_MSIX; 9048 return; 9049 } 9050 9051 np->flags |= NIU_FLAGS_MSIX; 9052 for (i = 0; i < num_irqs; i++) 9053 np->ldg[i].irq = msi_vec[i].vector; 9054 np->num_ldg = num_irqs; 9055 } 9056 9057 static int niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) 9058 { 9059 #ifdef CONFIG_SPARC64 9060 struct platform_device *op = np->op; 9061 const u32 *int_prop; 9062 int i; 9063 9064 int_prop = of_get_property(op->dev.of_node, "interrupts", NULL); 9065 if (!int_prop) 9066 return -ENODEV; 9067 9068 for (i = 0; i < op->archdata.num_irqs; i++) { 9069 ldg_num_map[i] = int_prop[i]; 9070 np->ldg[i].irq = op->archdata.irqs[i]; 9071 } 9072 9073 np->num_ldg = op->archdata.num_irqs; 9074 9075 return 0; 9076 #else 9077 return -EINVAL; 9078 #endif 9079 } 9080 9081 static int niu_ldg_init(struct niu *np) 9082 { 9083 struct niu_parent *parent = np->parent; 9084 u8 ldg_num_map[NIU_NUM_LDG]; 9085 int first_chan, num_chan; 9086 int i, err, ldg_rotor; 9087 u8 port; 9088 9089 np->num_ldg = 1; 9090 np->ldg[0].irq = np->dev->irq; 9091 if (parent->plat_type == PLAT_TYPE_NIU) { 9092 err = niu_n2_irq_init(np, ldg_num_map); 9093 if (err) 9094 return err; 9095 } else 9096 niu_try_msix(np, ldg_num_map); 9097 9098 port = np->port; 9099 for (i = 0; i < np->num_ldg; i++) { 9100 struct niu_ldg *lp = &np->ldg[i]; 9101 9102 netif_napi_add(np->dev, &lp->napi, niu_poll, 64); 9103 9104 lp->np = np; 9105 lp->ldg_num = ldg_num_map[i]; 9106 lp->timer = 2; /* XXX */ 9107 9108 /* On N2 NIU the firmware has setup the SID mappings so they go 9109 * to the correct values that will route the LDG to the proper 9110 * interrupt in the NCU interrupt table. 9111 */ 9112 if (np->parent->plat_type != PLAT_TYPE_NIU) { 9113 err = niu_set_ldg_sid(np, lp->ldg_num, port, i); 9114 if (err) 9115 return err; 9116 } 9117 } 9118 9119 /* We adopt the LDG assignment ordering used by the N2 NIU 9120 * 'interrupt' properties because that simplifies a lot of 9121 * things. This ordering is: 9122 * 9123 * MAC 9124 * MIF (if port zero) 9125 * SYSERR (if port zero) 9126 * RX channels 9127 * TX channels 9128 */ 9129 9130 ldg_rotor = 0; 9131 9132 err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor], 9133 LDN_MAC(port)); 9134 if (err) 9135 return err; 9136 9137 ldg_rotor++; 9138 if (ldg_rotor == np->num_ldg) 9139 ldg_rotor = 0; 9140 9141 if (port == 0) { 9142 err = niu_ldg_assign_ldn(np, parent, 9143 ldg_num_map[ldg_rotor], 9144 LDN_MIF); 9145 if (err) 9146 return err; 9147 9148 ldg_rotor++; 9149 if (ldg_rotor == np->num_ldg) 9150 ldg_rotor = 0; 9151 9152 err = niu_ldg_assign_ldn(np, parent, 9153 ldg_num_map[ldg_rotor], 9154 LDN_DEVICE_ERROR); 9155 if (err) 9156 return err; 9157 9158 ldg_rotor++; 9159 if (ldg_rotor == np->num_ldg) 9160 ldg_rotor = 0; 9161 9162 } 9163 9164 first_chan = 0; 9165 for (i = 0; i < port; i++) 9166 first_chan += parent->rxchan_per_port[i]; 9167 num_chan = parent->rxchan_per_port[port]; 9168 9169 for (i = first_chan; i < (first_chan + num_chan); i++) { 9170 err = niu_ldg_assign_ldn(np, parent, 9171 ldg_num_map[ldg_rotor], 9172 LDN_RXDMA(i)); 9173 if (err) 9174 return err; 9175 ldg_rotor++; 9176 if (ldg_rotor == np->num_ldg) 9177 ldg_rotor = 0; 9178 } 9179 9180 first_chan = 0; 9181 for (i = 0; i < port; i++) 9182 first_chan += parent->txchan_per_port[i]; 9183 num_chan = parent->txchan_per_port[port]; 9184 for (i = first_chan; i < (first_chan + num_chan); i++) { 9185 err = niu_ldg_assign_ldn(np, parent, 9186 ldg_num_map[ldg_rotor], 9187 LDN_TXDMA(i)); 9188 if (err) 9189 return err; 9190 ldg_rotor++; 9191 if (ldg_rotor == np->num_ldg) 9192 ldg_rotor = 0; 9193 } 9194 9195 return 0; 9196 } 9197 9198 static void niu_ldg_free(struct niu *np) 9199 { 9200 if (np->flags & NIU_FLAGS_MSIX) 9201 pci_disable_msix(np->pdev); 9202 } 9203 9204 static int niu_get_of_props(struct niu *np) 9205 { 9206 #ifdef CONFIG_SPARC64 9207 struct net_device *dev = np->dev; 9208 struct device_node *dp; 9209 const char *phy_type; 9210 const u8 *mac_addr; 9211 const char *model; 9212 int prop_len; 9213 9214 if (np->parent->plat_type == PLAT_TYPE_NIU) 9215 dp = np->op->dev.of_node; 9216 else 9217 dp = pci_device_to_OF_node(np->pdev); 9218 9219 phy_type = of_get_property(dp, "phy-type", &prop_len); 9220 if (!phy_type) { 9221 netdev_err(dev, "%s: OF node lacks phy-type property\n", 9222 dp->full_name); 9223 return -EINVAL; 9224 } 9225 9226 if (!strcmp(phy_type, "none")) 9227 return -ENODEV; 9228 9229 strcpy(np->vpd.phy_type, phy_type); 9230 9231 if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { 9232 netdev_err(dev, "%s: Illegal phy string [%s]\n", 9233 dp->full_name, np->vpd.phy_type); 9234 return -EINVAL; 9235 } 9236 9237 mac_addr = of_get_property(dp, "local-mac-address", &prop_len); 9238 if (!mac_addr) { 9239 netdev_err(dev, "%s: OF node lacks local-mac-address property\n", 9240 dp->full_name); 9241 return -EINVAL; 9242 } 9243 if (prop_len != dev->addr_len) { 9244 netdev_err(dev, "%s: OF MAC address prop len (%d) is wrong\n", 9245 dp->full_name, prop_len); 9246 } 9247 memcpy(dev->dev_addr, mac_addr, dev->addr_len); 9248 if (!is_valid_ether_addr(&dev->dev_addr[0])) { 9249 netdev_err(dev, "%s: OF MAC address is invalid\n", 9250 dp->full_name); 9251 netdev_err(dev, "%s: [ %pM ]\n", dp->full_name, dev->dev_addr); 9252 return -EINVAL; 9253 } 9254 9255 model = of_get_property(dp, "model", &prop_len); 9256 9257 if (model) 9258 strcpy(np->vpd.model, model); 9259 9260 if (of_find_property(dp, "hot-swappable-phy", &prop_len)) { 9261 np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | 9262 NIU_FLAGS_HOTPLUG_PHY); 9263 } 9264 9265 return 0; 9266 #else 9267 return -EINVAL; 9268 #endif 9269 } 9270 9271 static int niu_get_invariants(struct niu *np) 9272 { 9273 int err, have_props; 9274 u32 offset; 9275 9276 err = niu_get_of_props(np); 9277 if (err == -ENODEV) 9278 return err; 9279 9280 have_props = !err; 9281 9282 err = niu_init_mac_ipp_pcs_base(np); 9283 if (err) 9284 return err; 9285 9286 if (have_props) { 9287 err = niu_get_and_validate_port(np); 9288 if (err) 9289 return err; 9290 9291 } else { 9292 if (np->parent->plat_type == PLAT_TYPE_NIU) 9293 return -EINVAL; 9294 9295 nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE); 9296 offset = niu_pci_vpd_offset(np); 9297 netif_printk(np, probe, KERN_DEBUG, np->dev, 9298 "%s() VPD offset [%08x]\n", __func__, offset); 9299 if (offset) 9300 niu_pci_vpd_fetch(np, offset); 9301 nw64(ESPC_PIO_EN, 0); 9302 9303 if (np->flags & NIU_FLAGS_VPD_VALID) { 9304 niu_pci_vpd_validate(np); 9305 err = niu_get_and_validate_port(np); 9306 if (err) 9307 return err; 9308 } 9309 9310 if (!(np->flags & NIU_FLAGS_VPD_VALID)) { 9311 err = niu_get_and_validate_port(np); 9312 if (err) 9313 return err; 9314 err = niu_pci_probe_sprom(np); 9315 if (err) 9316 return err; 9317 } 9318 } 9319 9320 err = niu_probe_ports(np); 9321 if (err) 9322 return err; 9323 9324 niu_ldg_init(np); 9325 9326 niu_classifier_swstate_init(np); 9327 niu_link_config_init(np); 9328 9329 err = niu_determine_phy_disposition(np); 9330 if (!err) 9331 err = niu_init_link(np); 9332 9333 return err; 9334 } 9335 9336 static LIST_HEAD(niu_parent_list); 9337 static DEFINE_MUTEX(niu_parent_lock); 9338 static int niu_parent_index; 9339 9340 static ssize_t show_port_phy(struct device *dev, 9341 struct device_attribute *attr, char *buf) 9342 { 9343 struct platform_device *plat_dev = to_platform_device(dev); 9344 struct niu_parent *p = dev_get_platdata(&plat_dev->dev); 9345 u32 port_phy = p->port_phy; 9346 char *orig_buf = buf; 9347 int i; 9348 9349 if (port_phy == PORT_PHY_UNKNOWN || 9350 port_phy == PORT_PHY_INVALID) 9351 return 0; 9352 9353 for (i = 0; i < p->num_ports; i++) { 9354 const char *type_str; 9355 int type; 9356 9357 type = phy_decode(port_phy, i); 9358 if (type == PORT_TYPE_10G) 9359 type_str = "10G"; 9360 else 9361 type_str = "1G"; 9362 buf += sprintf(buf, 9363 (i == 0) ? "%s" : " %s", 9364 type_str); 9365 } 9366 buf += sprintf(buf, "\n"); 9367 return buf - orig_buf; 9368 } 9369 9370 static ssize_t show_plat_type(struct device *dev, 9371 struct device_attribute *attr, char *buf) 9372 { 9373 struct platform_device *plat_dev = to_platform_device(dev); 9374 struct niu_parent *p = dev_get_platdata(&plat_dev->dev); 9375 const char *type_str; 9376 9377 switch (p->plat_type) { 9378 case PLAT_TYPE_ATLAS: 9379 type_str = "atlas"; 9380 break; 9381 case PLAT_TYPE_NIU: 9382 type_str = "niu"; 9383 break; 9384 case PLAT_TYPE_VF_P0: 9385 type_str = "vf_p0"; 9386 break; 9387 case PLAT_TYPE_VF_P1: 9388 type_str = "vf_p1"; 9389 break; 9390 default: 9391 type_str = "unknown"; 9392 break; 9393 } 9394 9395 return sprintf(buf, "%s\n", type_str); 9396 } 9397 9398 static ssize_t __show_chan_per_port(struct device *dev, 9399 struct device_attribute *attr, char *buf, 9400 int rx) 9401 { 9402 struct platform_device *plat_dev = to_platform_device(dev); 9403 struct niu_parent *p = dev_get_platdata(&plat_dev->dev); 9404 char *orig_buf = buf; 9405 u8 *arr; 9406 int i; 9407 9408 arr = (rx ? p->rxchan_per_port : p->txchan_per_port); 9409 9410 for (i = 0; i < p->num_ports; i++) { 9411 buf += sprintf(buf, 9412 (i == 0) ? "%d" : " %d", 9413 arr[i]); 9414 } 9415 buf += sprintf(buf, "\n"); 9416 9417 return buf - orig_buf; 9418 } 9419 9420 static ssize_t show_rxchan_per_port(struct device *dev, 9421 struct device_attribute *attr, char *buf) 9422 { 9423 return __show_chan_per_port(dev, attr, buf, 1); 9424 } 9425 9426 static ssize_t show_txchan_per_port(struct device *dev, 9427 struct device_attribute *attr, char *buf) 9428 { 9429 return __show_chan_per_port(dev, attr, buf, 1); 9430 } 9431 9432 static ssize_t show_num_ports(struct device *dev, 9433 struct device_attribute *attr, char *buf) 9434 { 9435 struct platform_device *plat_dev = to_platform_device(dev); 9436 struct niu_parent *p = dev_get_platdata(&plat_dev->dev); 9437 9438 return sprintf(buf, "%d\n", p->num_ports); 9439 } 9440 9441 static struct device_attribute niu_parent_attributes[] = { 9442 __ATTR(port_phy, S_IRUGO, show_port_phy, NULL), 9443 __ATTR(plat_type, S_IRUGO, show_plat_type, NULL), 9444 __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL), 9445 __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL), 9446 __ATTR(num_ports, S_IRUGO, show_num_ports, NULL), 9447 {} 9448 }; 9449 9450 static struct niu_parent *niu_new_parent(struct niu *np, 9451 union niu_parent_id *id, u8 ptype) 9452 { 9453 struct platform_device *plat_dev; 9454 struct niu_parent *p; 9455 int i; 9456 9457 plat_dev = platform_device_register_simple("niu-board", niu_parent_index, 9458 NULL, 0); 9459 if (IS_ERR(plat_dev)) 9460 return NULL; 9461 9462 for (i = 0; niu_parent_attributes[i].attr.name; i++) { 9463 int err = device_create_file(&plat_dev->dev, 9464 &niu_parent_attributes[i]); 9465 if (err) 9466 goto fail_unregister; 9467 } 9468 9469 p = kzalloc(sizeof(*p), GFP_KERNEL); 9470 if (!p) 9471 goto fail_unregister; 9472 9473 p->index = niu_parent_index++; 9474 9475 plat_dev->dev.platform_data = p; 9476 p->plat_dev = plat_dev; 9477 9478 memcpy(&p->id, id, sizeof(*id)); 9479 p->plat_type = ptype; 9480 INIT_LIST_HEAD(&p->list); 9481 atomic_set(&p->refcnt, 0); 9482 list_add(&p->list, &niu_parent_list); 9483 spin_lock_init(&p->lock); 9484 9485 p->rxdma_clock_divider = 7500; 9486 9487 p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES; 9488 if (p->plat_type == PLAT_TYPE_NIU) 9489 p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES; 9490 9491 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { 9492 int index = i - CLASS_CODE_USER_PROG1; 9493 9494 p->tcam_key[index] = TCAM_KEY_TSEL; 9495 p->flow_key[index] = (FLOW_KEY_IPSA | 9496 FLOW_KEY_IPDA | 9497 FLOW_KEY_PROTO | 9498 (FLOW_KEY_L4_BYTE12 << 9499 FLOW_KEY_L4_0_SHIFT) | 9500 (FLOW_KEY_L4_BYTE12 << 9501 FLOW_KEY_L4_1_SHIFT)); 9502 } 9503 9504 for (i = 0; i < LDN_MAX + 1; i++) 9505 p->ldg_map[i] = LDG_INVALID; 9506 9507 return p; 9508 9509 fail_unregister: 9510 platform_device_unregister(plat_dev); 9511 return NULL; 9512 } 9513 9514 static struct niu_parent *niu_get_parent(struct niu *np, 9515 union niu_parent_id *id, u8 ptype) 9516 { 9517 struct niu_parent *p, *tmp; 9518 int port = np->port; 9519 9520 mutex_lock(&niu_parent_lock); 9521 p = NULL; 9522 list_for_each_entry(tmp, &niu_parent_list, list) { 9523 if (!memcmp(id, &tmp->id, sizeof(*id))) { 9524 p = tmp; 9525 break; 9526 } 9527 } 9528 if (!p) 9529 p = niu_new_parent(np, id, ptype); 9530 9531 if (p) { 9532 char port_name[6]; 9533 int err; 9534 9535 sprintf(port_name, "port%d", port); 9536 err = sysfs_create_link(&p->plat_dev->dev.kobj, 9537 &np->device->kobj, 9538 port_name); 9539 if (!err) { 9540 p->ports[port] = np; 9541 atomic_inc(&p->refcnt); 9542 } 9543 } 9544 mutex_unlock(&niu_parent_lock); 9545 9546 return p; 9547 } 9548 9549 static void niu_put_parent(struct niu *np) 9550 { 9551 struct niu_parent *p = np->parent; 9552 u8 port = np->port; 9553 char port_name[6]; 9554 9555 BUG_ON(!p || p->ports[port] != np); 9556 9557 netif_printk(np, probe, KERN_DEBUG, np->dev, 9558 "%s() port[%u]\n", __func__, port); 9559 9560 sprintf(port_name, "port%d", port); 9561 9562 mutex_lock(&niu_parent_lock); 9563 9564 sysfs_remove_link(&p->plat_dev->dev.kobj, port_name); 9565 9566 p->ports[port] = NULL; 9567 np->parent = NULL; 9568 9569 if (atomic_dec_and_test(&p->refcnt)) { 9570 list_del(&p->list); 9571 platform_device_unregister(p->plat_dev); 9572 } 9573 9574 mutex_unlock(&niu_parent_lock); 9575 } 9576 9577 static void *niu_pci_alloc_coherent(struct device *dev, size_t size, 9578 u64 *handle, gfp_t flag) 9579 { 9580 dma_addr_t dh; 9581 void *ret; 9582 9583 ret = dma_alloc_coherent(dev, size, &dh, flag); 9584 if (ret) 9585 *handle = dh; 9586 return ret; 9587 } 9588 9589 static void niu_pci_free_coherent(struct device *dev, size_t size, 9590 void *cpu_addr, u64 handle) 9591 { 9592 dma_free_coherent(dev, size, cpu_addr, handle); 9593 } 9594 9595 static u64 niu_pci_map_page(struct device *dev, struct page *page, 9596 unsigned long offset, size_t size, 9597 enum dma_data_direction direction) 9598 { 9599 return dma_map_page(dev, page, offset, size, direction); 9600 } 9601 9602 static void niu_pci_unmap_page(struct device *dev, u64 dma_address, 9603 size_t size, enum dma_data_direction direction) 9604 { 9605 dma_unmap_page(dev, dma_address, size, direction); 9606 } 9607 9608 static u64 niu_pci_map_single(struct device *dev, void *cpu_addr, 9609 size_t size, 9610 enum dma_data_direction direction) 9611 { 9612 return dma_map_single(dev, cpu_addr, size, direction); 9613 } 9614 9615 static void niu_pci_unmap_single(struct device *dev, u64 dma_address, 9616 size_t size, 9617 enum dma_data_direction direction) 9618 { 9619 dma_unmap_single(dev, dma_address, size, direction); 9620 } 9621 9622 static const struct niu_ops niu_pci_ops = { 9623 .alloc_coherent = niu_pci_alloc_coherent, 9624 .free_coherent = niu_pci_free_coherent, 9625 .map_page = niu_pci_map_page, 9626 .unmap_page = niu_pci_unmap_page, 9627 .map_single = niu_pci_map_single, 9628 .unmap_single = niu_pci_unmap_single, 9629 }; 9630 9631 static void niu_driver_version(void) 9632 { 9633 static int niu_version_printed; 9634 9635 if (niu_version_printed++ == 0) 9636 pr_info("%s", version); 9637 } 9638 9639 static struct net_device *niu_alloc_and_init(struct device *gen_dev, 9640 struct pci_dev *pdev, 9641 struct platform_device *op, 9642 const struct niu_ops *ops, u8 port) 9643 { 9644 struct net_device *dev; 9645 struct niu *np; 9646 9647 dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN); 9648 if (!dev) 9649 return NULL; 9650 9651 SET_NETDEV_DEV(dev, gen_dev); 9652 9653 np = netdev_priv(dev); 9654 np->dev = dev; 9655 np->pdev = pdev; 9656 np->op = op; 9657 np->device = gen_dev; 9658 np->ops = ops; 9659 9660 np->msg_enable = niu_debug; 9661 9662 spin_lock_init(&np->lock); 9663 INIT_WORK(&np->reset_task, niu_reset_task); 9664 9665 np->port = port; 9666 9667 return dev; 9668 } 9669 9670 static const struct net_device_ops niu_netdev_ops = { 9671 .ndo_open = niu_open, 9672 .ndo_stop = niu_close, 9673 .ndo_start_xmit = niu_start_xmit, 9674 .ndo_get_stats64 = niu_get_stats, 9675 .ndo_set_rx_mode = niu_set_rx_mode, 9676 .ndo_validate_addr = eth_validate_addr, 9677 .ndo_set_mac_address = niu_set_mac_addr, 9678 .ndo_do_ioctl = niu_ioctl, 9679 .ndo_tx_timeout = niu_tx_timeout, 9680 .ndo_change_mtu = niu_change_mtu, 9681 }; 9682 9683 static void niu_assign_netdev_ops(struct net_device *dev) 9684 { 9685 dev->netdev_ops = &niu_netdev_ops; 9686 dev->ethtool_ops = &niu_ethtool_ops; 9687 dev->watchdog_timeo = NIU_TX_TIMEOUT; 9688 } 9689 9690 static void niu_device_announce(struct niu *np) 9691 { 9692 struct net_device *dev = np->dev; 9693 9694 pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr); 9695 9696 if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) { 9697 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", 9698 dev->name, 9699 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), 9700 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), 9701 (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"), 9702 (np->mac_xcvr == MAC_XCVR_MII ? "MII" : 9703 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), 9704 np->vpd.phy_type); 9705 } else { 9706 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", 9707 dev->name, 9708 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), 9709 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), 9710 (np->flags & NIU_FLAGS_FIBER ? "FIBER" : 9711 (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" : 9712 "COPPER")), 9713 (np->mac_xcvr == MAC_XCVR_MII ? "MII" : 9714 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), 9715 np->vpd.phy_type); 9716 } 9717 } 9718 9719 static void niu_set_basic_features(struct net_device *dev) 9720 { 9721 dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_RXHASH; 9722 dev->features |= dev->hw_features | NETIF_F_RXCSUM; 9723 } 9724 9725 static int niu_pci_init_one(struct pci_dev *pdev, 9726 const struct pci_device_id *ent) 9727 { 9728 union niu_parent_id parent_id; 9729 struct net_device *dev; 9730 struct niu *np; 9731 int err; 9732 u64 dma_mask; 9733 9734 niu_driver_version(); 9735 9736 err = pci_enable_device(pdev); 9737 if (err) { 9738 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); 9739 return err; 9740 } 9741 9742 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 9743 !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 9744 dev_err(&pdev->dev, "Cannot find proper PCI device base addresses, aborting\n"); 9745 err = -ENODEV; 9746 goto err_out_disable_pdev; 9747 } 9748 9749 err = pci_request_regions(pdev, DRV_MODULE_NAME); 9750 if (err) { 9751 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); 9752 goto err_out_disable_pdev; 9753 } 9754 9755 if (!pci_is_pcie(pdev)) { 9756 dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n"); 9757 err = -ENODEV; 9758 goto err_out_free_res; 9759 } 9760 9761 dev = niu_alloc_and_init(&pdev->dev, pdev, NULL, 9762 &niu_pci_ops, PCI_FUNC(pdev->devfn)); 9763 if (!dev) { 9764 err = -ENOMEM; 9765 goto err_out_free_res; 9766 } 9767 np = netdev_priv(dev); 9768 9769 memset(&parent_id, 0, sizeof(parent_id)); 9770 parent_id.pci.domain = pci_domain_nr(pdev->bus); 9771 parent_id.pci.bus = pdev->bus->number; 9772 parent_id.pci.device = PCI_SLOT(pdev->devfn); 9773 9774 np->parent = niu_get_parent(np, &parent_id, 9775 PLAT_TYPE_ATLAS); 9776 if (!np->parent) { 9777 err = -ENOMEM; 9778 goto err_out_free_dev; 9779 } 9780 9781 pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL, 9782 PCI_EXP_DEVCTL_NOSNOOP_EN, 9783 PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE | 9784 PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE | 9785 PCI_EXP_DEVCTL_RELAX_EN); 9786 9787 dma_mask = DMA_BIT_MASK(44); 9788 err = pci_set_dma_mask(pdev, dma_mask); 9789 if (!err) { 9790 dev->features |= NETIF_F_HIGHDMA; 9791 err = pci_set_consistent_dma_mask(pdev, dma_mask); 9792 if (err) { 9793 dev_err(&pdev->dev, "Unable to obtain 44 bit DMA for consistent allocations, aborting\n"); 9794 goto err_out_release_parent; 9795 } 9796 } 9797 if (err) { 9798 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 9799 if (err) { 9800 dev_err(&pdev->dev, "No usable DMA configuration, aborting\n"); 9801 goto err_out_release_parent; 9802 } 9803 } 9804 9805 niu_set_basic_features(dev); 9806 9807 dev->priv_flags |= IFF_UNICAST_FLT; 9808 9809 np->regs = pci_ioremap_bar(pdev, 0); 9810 if (!np->regs) { 9811 dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); 9812 err = -ENOMEM; 9813 goto err_out_release_parent; 9814 } 9815 9816 pci_set_master(pdev); 9817 pci_save_state(pdev); 9818 9819 dev->irq = pdev->irq; 9820 9821 /* MTU range: 68 - 9216 */ 9822 dev->min_mtu = ETH_MIN_MTU; 9823 dev->max_mtu = NIU_MAX_MTU; 9824 9825 niu_assign_netdev_ops(dev); 9826 9827 err = niu_get_invariants(np); 9828 if (err) { 9829 if (err != -ENODEV) 9830 dev_err(&pdev->dev, "Problem fetching invariants of chip, aborting\n"); 9831 goto err_out_iounmap; 9832 } 9833 9834 err = register_netdev(dev); 9835 if (err) { 9836 dev_err(&pdev->dev, "Cannot register net device, aborting\n"); 9837 goto err_out_iounmap; 9838 } 9839 9840 pci_set_drvdata(pdev, dev); 9841 9842 niu_device_announce(np); 9843 9844 return 0; 9845 9846 err_out_iounmap: 9847 if (np->regs) { 9848 iounmap(np->regs); 9849 np->regs = NULL; 9850 } 9851 9852 err_out_release_parent: 9853 niu_put_parent(np); 9854 9855 err_out_free_dev: 9856 free_netdev(dev); 9857 9858 err_out_free_res: 9859 pci_release_regions(pdev); 9860 9861 err_out_disable_pdev: 9862 pci_disable_device(pdev); 9863 9864 return err; 9865 } 9866 9867 static void niu_pci_remove_one(struct pci_dev *pdev) 9868 { 9869 struct net_device *dev = pci_get_drvdata(pdev); 9870 9871 if (dev) { 9872 struct niu *np = netdev_priv(dev); 9873 9874 unregister_netdev(dev); 9875 if (np->regs) { 9876 iounmap(np->regs); 9877 np->regs = NULL; 9878 } 9879 9880 niu_ldg_free(np); 9881 9882 niu_put_parent(np); 9883 9884 free_netdev(dev); 9885 pci_release_regions(pdev); 9886 pci_disable_device(pdev); 9887 } 9888 } 9889 9890 static int niu_suspend(struct pci_dev *pdev, pm_message_t state) 9891 { 9892 struct net_device *dev = pci_get_drvdata(pdev); 9893 struct niu *np = netdev_priv(dev); 9894 unsigned long flags; 9895 9896 if (!netif_running(dev)) 9897 return 0; 9898 9899 flush_work(&np->reset_task); 9900 niu_netif_stop(np); 9901 9902 del_timer_sync(&np->timer); 9903 9904 spin_lock_irqsave(&np->lock, flags); 9905 niu_enable_interrupts(np, 0); 9906 spin_unlock_irqrestore(&np->lock, flags); 9907 9908 netif_device_detach(dev); 9909 9910 spin_lock_irqsave(&np->lock, flags); 9911 niu_stop_hw(np); 9912 spin_unlock_irqrestore(&np->lock, flags); 9913 9914 pci_save_state(pdev); 9915 9916 return 0; 9917 } 9918 9919 static int niu_resume(struct pci_dev *pdev) 9920 { 9921 struct net_device *dev = pci_get_drvdata(pdev); 9922 struct niu *np = netdev_priv(dev); 9923 unsigned long flags; 9924 int err; 9925 9926 if (!netif_running(dev)) 9927 return 0; 9928 9929 pci_restore_state(pdev); 9930 9931 netif_device_attach(dev); 9932 9933 spin_lock_irqsave(&np->lock, flags); 9934 9935 err = niu_init_hw(np); 9936 if (!err) { 9937 np->timer.expires = jiffies + HZ; 9938 add_timer(&np->timer); 9939 niu_netif_start(np); 9940 } 9941 9942 spin_unlock_irqrestore(&np->lock, flags); 9943 9944 return err; 9945 } 9946 9947 static struct pci_driver niu_pci_driver = { 9948 .name = DRV_MODULE_NAME, 9949 .id_table = niu_pci_tbl, 9950 .probe = niu_pci_init_one, 9951 .remove = niu_pci_remove_one, 9952 .suspend = niu_suspend, 9953 .resume = niu_resume, 9954 }; 9955 9956 #ifdef CONFIG_SPARC64 9957 static void *niu_phys_alloc_coherent(struct device *dev, size_t size, 9958 u64 *dma_addr, gfp_t flag) 9959 { 9960 unsigned long order = get_order(size); 9961 unsigned long page = __get_free_pages(flag, order); 9962 9963 if (page == 0UL) 9964 return NULL; 9965 memset((char *)page, 0, PAGE_SIZE << order); 9966 *dma_addr = __pa(page); 9967 9968 return (void *) page; 9969 } 9970 9971 static void niu_phys_free_coherent(struct device *dev, size_t size, 9972 void *cpu_addr, u64 handle) 9973 { 9974 unsigned long order = get_order(size); 9975 9976 free_pages((unsigned long) cpu_addr, order); 9977 } 9978 9979 static u64 niu_phys_map_page(struct device *dev, struct page *page, 9980 unsigned long offset, size_t size, 9981 enum dma_data_direction direction) 9982 { 9983 return page_to_phys(page) + offset; 9984 } 9985 9986 static void niu_phys_unmap_page(struct device *dev, u64 dma_address, 9987 size_t size, enum dma_data_direction direction) 9988 { 9989 /* Nothing to do. */ 9990 } 9991 9992 static u64 niu_phys_map_single(struct device *dev, void *cpu_addr, 9993 size_t size, 9994 enum dma_data_direction direction) 9995 { 9996 return __pa(cpu_addr); 9997 } 9998 9999 static void niu_phys_unmap_single(struct device *dev, u64 dma_address, 10000 size_t size, 10001 enum dma_data_direction direction) 10002 { 10003 /* Nothing to do. */ 10004 } 10005 10006 static const struct niu_ops niu_phys_ops = { 10007 .alloc_coherent = niu_phys_alloc_coherent, 10008 .free_coherent = niu_phys_free_coherent, 10009 .map_page = niu_phys_map_page, 10010 .unmap_page = niu_phys_unmap_page, 10011 .map_single = niu_phys_map_single, 10012 .unmap_single = niu_phys_unmap_single, 10013 }; 10014 10015 static int niu_of_probe(struct platform_device *op) 10016 { 10017 union niu_parent_id parent_id; 10018 struct net_device *dev; 10019 struct niu *np; 10020 const u32 *reg; 10021 int err; 10022 10023 niu_driver_version(); 10024 10025 reg = of_get_property(op->dev.of_node, "reg", NULL); 10026 if (!reg) { 10027 dev_err(&op->dev, "%s: No 'reg' property, aborting\n", 10028 op->dev.of_node->full_name); 10029 return -ENODEV; 10030 } 10031 10032 dev = niu_alloc_and_init(&op->dev, NULL, op, 10033 &niu_phys_ops, reg[0] & 0x1); 10034 if (!dev) { 10035 err = -ENOMEM; 10036 goto err_out; 10037 } 10038 np = netdev_priv(dev); 10039 10040 memset(&parent_id, 0, sizeof(parent_id)); 10041 parent_id.of = of_get_parent(op->dev.of_node); 10042 10043 np->parent = niu_get_parent(np, &parent_id, 10044 PLAT_TYPE_NIU); 10045 if (!np->parent) { 10046 err = -ENOMEM; 10047 goto err_out_free_dev; 10048 } 10049 10050 niu_set_basic_features(dev); 10051 10052 np->regs = of_ioremap(&op->resource[1], 0, 10053 resource_size(&op->resource[1]), 10054 "niu regs"); 10055 if (!np->regs) { 10056 dev_err(&op->dev, "Cannot map device registers, aborting\n"); 10057 err = -ENOMEM; 10058 goto err_out_release_parent; 10059 } 10060 10061 np->vir_regs_1 = of_ioremap(&op->resource[2], 0, 10062 resource_size(&op->resource[2]), 10063 "niu vregs-1"); 10064 if (!np->vir_regs_1) { 10065 dev_err(&op->dev, "Cannot map device vir registers 1, aborting\n"); 10066 err = -ENOMEM; 10067 goto err_out_iounmap; 10068 } 10069 10070 np->vir_regs_2 = of_ioremap(&op->resource[3], 0, 10071 resource_size(&op->resource[3]), 10072 "niu vregs-2"); 10073 if (!np->vir_regs_2) { 10074 dev_err(&op->dev, "Cannot map device vir registers 2, aborting\n"); 10075 err = -ENOMEM; 10076 goto err_out_iounmap; 10077 } 10078 10079 niu_assign_netdev_ops(dev); 10080 10081 err = niu_get_invariants(np); 10082 if (err) { 10083 if (err != -ENODEV) 10084 dev_err(&op->dev, "Problem fetching invariants of chip, aborting\n"); 10085 goto err_out_iounmap; 10086 } 10087 10088 err = register_netdev(dev); 10089 if (err) { 10090 dev_err(&op->dev, "Cannot register net device, aborting\n"); 10091 goto err_out_iounmap; 10092 } 10093 10094 platform_set_drvdata(op, dev); 10095 10096 niu_device_announce(np); 10097 10098 return 0; 10099 10100 err_out_iounmap: 10101 if (np->vir_regs_1) { 10102 of_iounmap(&op->resource[2], np->vir_regs_1, 10103 resource_size(&op->resource[2])); 10104 np->vir_regs_1 = NULL; 10105 } 10106 10107 if (np->vir_regs_2) { 10108 of_iounmap(&op->resource[3], np->vir_regs_2, 10109 resource_size(&op->resource[3])); 10110 np->vir_regs_2 = NULL; 10111 } 10112 10113 if (np->regs) { 10114 of_iounmap(&op->resource[1], np->regs, 10115 resource_size(&op->resource[1])); 10116 np->regs = NULL; 10117 } 10118 10119 err_out_release_parent: 10120 niu_put_parent(np); 10121 10122 err_out_free_dev: 10123 free_netdev(dev); 10124 10125 err_out: 10126 return err; 10127 } 10128 10129 static int niu_of_remove(struct platform_device *op) 10130 { 10131 struct net_device *dev = platform_get_drvdata(op); 10132 10133 if (dev) { 10134 struct niu *np = netdev_priv(dev); 10135 10136 unregister_netdev(dev); 10137 10138 if (np->vir_regs_1) { 10139 of_iounmap(&op->resource[2], np->vir_regs_1, 10140 resource_size(&op->resource[2])); 10141 np->vir_regs_1 = NULL; 10142 } 10143 10144 if (np->vir_regs_2) { 10145 of_iounmap(&op->resource[3], np->vir_regs_2, 10146 resource_size(&op->resource[3])); 10147 np->vir_regs_2 = NULL; 10148 } 10149 10150 if (np->regs) { 10151 of_iounmap(&op->resource[1], np->regs, 10152 resource_size(&op->resource[1])); 10153 np->regs = NULL; 10154 } 10155 10156 niu_ldg_free(np); 10157 10158 niu_put_parent(np); 10159 10160 free_netdev(dev); 10161 } 10162 return 0; 10163 } 10164 10165 static const struct of_device_id niu_match[] = { 10166 { 10167 .name = "network", 10168 .compatible = "SUNW,niusl", 10169 }, 10170 {}, 10171 }; 10172 MODULE_DEVICE_TABLE(of, niu_match); 10173 10174 static struct platform_driver niu_of_driver = { 10175 .driver = { 10176 .name = "niu", 10177 .of_match_table = niu_match, 10178 }, 10179 .probe = niu_of_probe, 10180 .remove = niu_of_remove, 10181 }; 10182 10183 #endif /* CONFIG_SPARC64 */ 10184 10185 static int __init niu_init(void) 10186 { 10187 int err = 0; 10188 10189 BUILD_BUG_ON(PAGE_SIZE < 4 * 1024); 10190 10191 niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT); 10192 10193 #ifdef CONFIG_SPARC64 10194 err = platform_driver_register(&niu_of_driver); 10195 #endif 10196 10197 if (!err) { 10198 err = pci_register_driver(&niu_pci_driver); 10199 #ifdef CONFIG_SPARC64 10200 if (err) 10201 platform_driver_unregister(&niu_of_driver); 10202 #endif 10203 } 10204 10205 return err; 10206 } 10207 10208 static void __exit niu_exit(void) 10209 { 10210 pci_unregister_driver(&niu_pci_driver); 10211 #ifdef CONFIG_SPARC64 10212 platform_driver_unregister(&niu_of_driver); 10213 #endif 10214 } 10215 10216 module_init(niu_init); 10217 module_exit(niu_exit); 10218