1/* 2** hp100.c 3** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters 4** 5** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $ 6** 7** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz> 8** Extended for new busmaster capable chipsets by 9** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de> 10** 11** Maintained by: Jaroslav Kysela <perex@perex.cz> 12** 13** This driver has only been tested with 14** -- HP J2585B 10/100 Mbit/s PCI Busmaster 15** -- HP J2585A 10/100 Mbit/s PCI 16** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC 17** -- HP J2973A 10 Mbit/s PCI 10base-T 18** -- HP J2573 10/100 ISA 19** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA 20** -- Compex FreedomLine 100/VG 10/100 Mbit/s ISA / EISA / PCI 21** 22** but it should also work with the other CASCADE based adapters. 23** 24** TODO: 25** - J2573 seems to hang sometimes when in shared memory mode. 26** - Mode for Priority TX 27** - Check PCI registers, performance might be improved? 28** - To reduce interrupt load in busmaster, one could switch off 29** the interrupts that are used to refill the queues whenever the 30** queues are filled up to more than a certain threshold. 31** - some updates for EISA version of card 32** 33** 34** This code is free software; you can redistribute it and/or modify 35** it under the terms of the GNU General Public License as published by 36** the Free Software Foundation; either version 2 of the License, or 37** (at your option) any later version. 38** 39** This code is distributed in the hope that it will be useful, 40** but WITHOUT ANY WARRANTY; without even the implied warranty of 41** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 42** GNU General Public License for more details. 43** 44** You should have received a copy of the GNU General Public License 45** along with this program; if not, write to the Free Software 46** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 47** 48** 1.57c -> 1.58 49** - used indent to change coding-style 50** - added KTI DP-200 EISA ID 51** - ioremap is also used for low (<1MB) memory (multi-architecture support) 52** 53** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br> 54** - release resources on failure in init_module 55** 56** 1.57 -> 1.57b - Jean II 57** - fix spinlocks, SMP is now working ! 58** 59** 1.56 -> 1.57 60** - updates for new PCI interface for 2.1 kernels 61** 62** 1.55 -> 1.56 63** - removed printk in misc. interrupt and update statistics to allow 64** monitoring of card status 65** - timing changes in xmit routines, relogin to 100VG hub added when 66** driver does reset 67** - included fix for Compex FreedomLine PCI adapter 68** 69** 1.54 -> 1.55 70** - fixed bad initialization in init_module 71** - added Compex FreedomLine adapter 72** - some fixes in card initialization 73** 74** 1.53 -> 1.54 75** - added hardware multicast filter support (doesn't work) 76** - little changes in hp100_sense_lan routine 77** - added support for Coax and AUI (J2970) 78** - fix for multiple cards and hp100_mode parameter (insmod) 79** - fix for shared IRQ 80** 81** 1.52 -> 1.53 82** - fixed bug in multicast support 83** 84*/ 85 86#define HP100_DEFAULT_PRIORITY_TX 0 87 88#undef HP100_DEBUG 89#undef HP100_DEBUG_B /* Trace */ 90#undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */ 91 92#undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */ 93#undef HP100_DEBUG_TX 94#undef HP100_DEBUG_IRQ 95#undef HP100_DEBUG_RX 96 97#undef HP100_MULTICAST_FILTER /* Need to be debugged... */ 98 99#include <linux/module.h> 100#include <linux/kernel.h> 101#include <linux/sched.h> 102#include <linux/string.h> 103#include <linux/errno.h> 104#include <linux/ioport.h> 105#include <linux/interrupt.h> 106#include <linux/eisa.h> 107#include <linux/pci.h> 108#include <linux/dma-mapping.h> 109#include <linux/spinlock.h> 110#include <linux/netdevice.h> 111#include <linux/etherdevice.h> 112#include <linux/skbuff.h> 113#include <linux/types.h> 114#include <linux/delay.h> 115#include <linux/init.h> 116#include <linux/bitops.h> 117#include <linux/jiffies.h> 118 119#include <asm/io.h> 120 121#include "hp100.h" 122 123/* 124 * defines 125 */ 126 127#define HP100_BUS_ISA 0 128#define HP100_BUS_EISA 1 129#define HP100_BUS_PCI 2 130 131#define HP100_REGION_SIZE 0x20 /* for ioports */ 132#define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */ 133 134#define HP100_MAX_PACKET_SIZE (1536+4) 135#define HP100_MIN_PACKET_SIZE 60 136 137#ifndef HP100_DEFAULT_RX_RATIO 138/* default - 75% onboard memory on the card are used for RX packets */ 139#define HP100_DEFAULT_RX_RATIO 75 140#endif 141 142#ifndef HP100_DEFAULT_PRIORITY_TX 143/* default - don't enable transmit outgoing packets as priority */ 144#define HP100_DEFAULT_PRIORITY_TX 0 145#endif 146 147/* 148 * structures 149 */ 150 151struct hp100_private { 152 spinlock_t lock; 153 char id[HP100_SIG_LEN]; 154 u_short chip; 155 u_short soft_model; 156 u_int memory_size; 157 u_int virt_memory_size; 158 u_short rx_ratio; /* 1 - 99 */ 159 u_short priority_tx; /* != 0 - priority tx */ 160 u_short mode; /* PIO, Shared Mem or Busmaster */ 161 u_char bus; 162 struct pci_dev *pci_dev; 163 short mem_mapped; /* memory mapped access */ 164 void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */ 165 unsigned long mem_ptr_phys; /* physical memory mapped area */ 166 short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */ 167 int hub_status; /* was login to hub successful? */ 168 u_char mac1_mode; 169 u_char mac2_mode; 170 u_char hash_bytes[8]; 171 172 /* Rings for busmaster mode: */ 173 hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */ 174 hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */ 175 hp100_ring_t *txrhead; /* Head (oldest) index into txring */ 176 hp100_ring_t *txrtail; /* Tail (newest) index into txring */ 177 178 hp100_ring_t rxring[MAX_RX_PDL]; 179 hp100_ring_t txring[MAX_TX_PDL]; 180 181 u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */ 182 u_long whatever_offset; /* Offset to bus/phys/dma address */ 183 int rxrcommit; /* # Rx PDLs committed to adapter */ 184 int txrcommit; /* # Tx PDLs committed to adapter */ 185}; 186 187/* 188 * variables 189 */ 190#ifdef CONFIG_ISA 191static const char *hp100_isa_tbl[] = { 192 "HWPF150", /* HP J2573 rev A */ 193 "HWP1950", /* HP J2573 */ 194}; 195#endif 196 197#ifdef CONFIG_EISA 198static struct eisa_device_id hp100_eisa_tbl[] = { 199 { "HWPF180" }, /* HP J2577 rev A */ 200 { "HWP1920" }, /* HP 27248B */ 201 { "HWP1940" }, /* HP J2577 */ 202 { "HWP1990" }, /* HP J2577 */ 203 { "CPX0301" }, /* ReadyLink ENET100-VG4 */ 204 { "CPX0401" }, /* FreedomLine 100/VG */ 205 { "" } /* Mandatory final entry ! */ 206}; 207MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl); 208#endif 209 210#ifdef CONFIG_PCI 211static const struct pci_device_id hp100_pci_tbl[] = { 212 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,}, 213 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,}, 214 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,}, 215 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,}, 216 {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,}, 217 {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,}, 218/* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */ 219 {} /* Terminating entry */ 220}; 221MODULE_DEVICE_TABLE(pci, hp100_pci_tbl); 222#endif 223 224static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO; 225static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX; 226static int hp100_mode = 1; 227 228module_param(hp100_rx_ratio, int, 0); 229module_param(hp100_priority_tx, int, 0); 230module_param(hp100_mode, int, 0); 231 232/* 233 * prototypes 234 */ 235 236static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, 237 struct pci_dev *pci_dev); 238 239 240static int hp100_open(struct net_device *dev); 241static int hp100_close(struct net_device *dev); 242static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, 243 struct net_device *dev); 244static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, 245 struct net_device *dev); 246static void hp100_rx(struct net_device *dev); 247static struct net_device_stats *hp100_get_stats(struct net_device *dev); 248static void hp100_misc_interrupt(struct net_device *dev); 249static void hp100_update_stats(struct net_device *dev); 250static void hp100_clear_stats(struct hp100_private *lp, int ioaddr); 251static void hp100_set_multicast_list(struct net_device *dev); 252static irqreturn_t hp100_interrupt(int irq, void *dev_id); 253static void hp100_start_interface(struct net_device *dev); 254static void hp100_stop_interface(struct net_device *dev); 255static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr); 256static int hp100_sense_lan(struct net_device *dev); 257static int hp100_login_to_vg_hub(struct net_device *dev, 258 u_short force_relogin); 259static int hp100_down_vg_link(struct net_device *dev); 260static void hp100_cascade_reset(struct net_device *dev, u_short enable); 261static void hp100_BM_shutdown(struct net_device *dev); 262static void hp100_mmuinit(struct net_device *dev); 263static void hp100_init_pdls(struct net_device *dev); 264static int hp100_init_rxpdl(struct net_device *dev, 265 register hp100_ring_t * ringptr, 266 register u_int * pdlptr); 267static int hp100_init_txpdl(struct net_device *dev, 268 register hp100_ring_t * ringptr, 269 register u_int * pdlptr); 270static void hp100_rxfill(struct net_device *dev); 271static void hp100_hwinit(struct net_device *dev); 272static void hp100_clean_txring(struct net_device *dev); 273#ifdef HP100_DEBUG 274static void hp100_RegisterDump(struct net_device *dev); 275#endif 276 277/* Conversion to new PCI API : 278 * Convert an address in a kernel buffer to a bus/phys/dma address. 279 * This work *only* for memory fragments part of lp->page_vaddr, 280 * because it was properly DMA allocated via pci_alloc_consistent(), 281 * so we just need to "retrieve" the original mapping to bus/phys/dma 282 * address - Jean II */ 283static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr) 284{ 285 struct hp100_private *lp = netdev_priv(dev); 286 return ((u_long) ptr) + lp->whatever_offset; 287} 288 289static inline u_int pdl_map_data(struct hp100_private *lp, void *data) 290{ 291 return pci_map_single(lp->pci_dev, data, 292 MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); 293} 294 295/* TODO: This function should not really be needed in a good design... */ 296static void wait(void) 297{ 298 mdelay(1); 299} 300 301/* 302 * probe functions 303 * These functions should - if possible - avoid doing write operations 304 * since this could cause problems when the card is not installed. 305 */ 306 307/* 308 * Read board id and convert to string. 309 * Effectively same code as decode_eisa_sig 310 */ 311static const char *hp100_read_id(int ioaddr) 312{ 313 int i; 314 static char str[HP100_SIG_LEN]; 315 unsigned char sig[4], sum; 316 unsigned short rev; 317 318 hp100_page(ID_MAC_ADDR); 319 sum = 0; 320 for (i = 0; i < 4; i++) { 321 sig[i] = hp100_inb(BOARD_ID + i); 322 sum += sig[i]; 323 } 324 325 sum += hp100_inb(BOARD_ID + i); 326 if (sum != 0xff) 327 return NULL; /* bad checksum */ 328 329 str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1); 330 str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1); 331 str[2] = (sig[1] & 0x1f) + ('A' - 1); 332 rev = (sig[2] << 8) | sig[3]; 333 sprintf(str + 3, "%04X", rev); 334 335 return str; 336} 337 338#ifdef CONFIG_ISA 339static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr) 340{ 341 const char *sig; 342 int i; 343 344 if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) 345 goto err; 346 347 if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) { 348 release_region(ioaddr, HP100_REGION_SIZE); 349 goto err; 350 } 351 352 sig = hp100_read_id(ioaddr); 353 release_region(ioaddr, HP100_REGION_SIZE); 354 355 if (sig == NULL) 356 goto err; 357 358 for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) { 359 if (!strcmp(hp100_isa_tbl[i], sig)) 360 break; 361 362 } 363 364 if (i < ARRAY_SIZE(hp100_isa_tbl)) 365 return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL); 366 err: 367 return -ENODEV; 368 369} 370/* 371 * Probe for ISA board. 372 * EISA and PCI are handled by device infrastructure. 373 */ 374 375static int __init hp100_isa_probe(struct net_device *dev, int addr) 376{ 377 int err = -ENODEV; 378 379 /* Probe for a specific ISA address */ 380 if (addr > 0xff && addr < 0x400) 381 err = hp100_isa_probe1(dev, addr); 382 383 else if (addr != 0) 384 err = -ENXIO; 385 386 else { 387 /* Probe all ISA possible port regions */ 388 for (addr = 0x100; addr < 0x400; addr += 0x20) { 389 err = hp100_isa_probe1(dev, addr); 390 if (!err) 391 break; 392 } 393 } 394 return err; 395} 396#endif /* CONFIG_ISA */ 397 398#if !defined(MODULE) && defined(CONFIG_ISA) 399struct net_device * __init hp100_probe(int unit) 400{ 401 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); 402 int err; 403 404 if (!dev) 405 return ERR_PTR(-ENODEV); 406 407#ifdef HP100_DEBUG_B 408 hp100_outw(0x4200, TRACE); 409 printk("hp100: %s: probe\n", dev->name); 410#endif 411 412 if (unit >= 0) { 413 sprintf(dev->name, "eth%d", unit); 414 netdev_boot_setup_check(dev); 415 } 416 417 err = hp100_isa_probe(dev, dev->base_addr); 418 if (err) 419 goto out; 420 421 return dev; 422 out: 423 free_netdev(dev); 424 return ERR_PTR(err); 425} 426#endif /* !MODULE && CONFIG_ISA */ 427 428static const struct net_device_ops hp100_bm_netdev_ops = { 429 .ndo_open = hp100_open, 430 .ndo_stop = hp100_close, 431 .ndo_start_xmit = hp100_start_xmit_bm, 432 .ndo_get_stats = hp100_get_stats, 433 .ndo_set_rx_mode = hp100_set_multicast_list, 434 .ndo_change_mtu = eth_change_mtu, 435 .ndo_set_mac_address = eth_mac_addr, 436 .ndo_validate_addr = eth_validate_addr, 437}; 438 439static const struct net_device_ops hp100_netdev_ops = { 440 .ndo_open = hp100_open, 441 .ndo_stop = hp100_close, 442 .ndo_start_xmit = hp100_start_xmit, 443 .ndo_get_stats = hp100_get_stats, 444 .ndo_set_rx_mode = hp100_set_multicast_list, 445 .ndo_change_mtu = eth_change_mtu, 446 .ndo_set_mac_address = eth_mac_addr, 447 .ndo_validate_addr = eth_validate_addr, 448}; 449 450static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, 451 struct pci_dev *pci_dev) 452{ 453 int i; 454 int err = -ENODEV; 455 const char *eid; 456 u_int chip; 457 u_char uc; 458 u_int memory_size = 0, virt_memory_size = 0; 459 u_short local_mode, lsw; 460 short mem_mapped; 461 unsigned long mem_ptr_phys; 462 void __iomem *mem_ptr_virt; 463 struct hp100_private *lp; 464 465#ifdef HP100_DEBUG_B 466 hp100_outw(0x4201, TRACE); 467 printk("hp100: %s: probe1\n", dev->name); 468#endif 469 470 /* memory region for programmed i/o */ 471 if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) 472 goto out1; 473 474 if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) 475 goto out2; 476 477 chip = hp100_inw(PAGING) & HP100_CHIPID_MASK; 478#ifdef HP100_DEBUG 479 if (chip == HP100_CHIPID_SHASTA) 480 printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name); 481 else if (chip == HP100_CHIPID_RAINIER) 482 printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name); 483 else if (chip == HP100_CHIPID_LASSEN) 484 printk("hp100: %s: Lassen Chip detected.\n", dev->name); 485 else 486 printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip); 487#endif 488 489 dev->base_addr = ioaddr; 490 491 eid = hp100_read_id(ioaddr); 492 if (eid == NULL) { /* bad checksum? */ 493 printk(KERN_WARNING "%s: bad ID checksum at base port 0x%x\n", 494 __func__, ioaddr); 495 goto out2; 496 } 497 498 hp100_page(ID_MAC_ADDR); 499 for (i = uc = 0; i < 7; i++) 500 uc += hp100_inb(LAN_ADDR + i); 501 if (uc != 0xff) { 502 printk(KERN_WARNING 503 "%s: bad lan address checksum at port 0x%x)\n", 504 __func__, ioaddr); 505 err = -EIO; 506 goto out2; 507 } 508 509 /* Make sure, that all registers are correctly updated... */ 510 511 hp100_load_eeprom(dev, ioaddr); 512 wait(); 513 514 /* 515 * Determine driver operation mode 516 * 517 * Use the variable "hp100_mode" upon insmod or as kernel parameter to 518 * force driver modes: 519 * hp100_mode=1 -> default, use busmaster mode if configured. 520 * hp100_mode=2 -> enable shared memory mode 521 * hp100_mode=3 -> force use of i/o mapped mode. 522 * hp100_mode=4 -> same as 1, but re-set the enable bit on the card. 523 */ 524 525 /* 526 * LSW values: 527 * 0x2278 -> J2585B, PnP shared memory mode 528 * 0x2270 -> J2585B, shared memory mode, 0xdc000 529 * 0xa23c -> J2585B, I/O mapped mode 530 * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip) 531 * 0x2220 -> EISA HP, I/O (Shasta Chip) 532 * 0x2260 -> EISA HP, BusMaster (Shasta Chip) 533 */ 534 535#if 0 536 local_mode = 0x2270; 537 hp100_outw(0xfefe, OPTION_LSW); 538 hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW); 539#endif 540 541 /* hp100_mode value maybe used in future by another card */ 542 local_mode = hp100_mode; 543 if (local_mode < 1 || local_mode > 4) 544 local_mode = 1; /* default */ 545#ifdef HP100_DEBUG 546 printk("hp100: %s: original LSW = 0x%x\n", dev->name, 547 hp100_inw(OPTION_LSW)); 548#endif 549 550 if (local_mode == 3) { 551 hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); 552 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 553 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); 554 printk("hp100: IO mapped mode forced.\n"); 555 } else if (local_mode == 2) { 556 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); 557 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 558 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); 559 printk("hp100: Shared memory mode requested.\n"); 560 } else if (local_mode == 4) { 561 if (chip == HP100_CHIPID_LASSEN) { 562 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); 563 hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); 564 printk("hp100: Busmaster mode requested.\n"); 565 } 566 local_mode = 1; 567 } 568 569 if (local_mode == 1) { /* default behaviour */ 570 lsw = hp100_inw(OPTION_LSW); 571 572 if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && 573 (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { 574#ifdef HP100_DEBUG 575 printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); 576#endif 577 local_mode = 3; 578 } else if (chip == HP100_CHIPID_LASSEN && 579 (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { 580 /* Conversion to new PCI API : 581 * I don't have the doc, but I assume that the card 582 * can map the full 32bit address space. 583 * Also, we can have EISA Busmaster cards (not tested), 584 * so beware !!! - Jean II */ 585 if((bus == HP100_BUS_PCI) && 586 (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)))) { 587 /* Gracefully fallback to shared memory */ 588 goto busmasterfail; 589 } 590 printk("hp100: Busmaster mode enabled.\n"); 591 hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); 592 } else { 593 busmasterfail: 594#ifdef HP100_DEBUG 595 printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); 596 printk("hp100: %s: Trying shared memory mode.\n", dev->name); 597#endif 598 /* In this case, try shared memory mode */ 599 local_mode = 2; 600 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); 601 /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ 602 } 603 } 604#ifdef HP100_DEBUG 605 printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); 606#endif 607 608 /* Check for shared memory on the card, eventually remap it */ 609 hp100_page(HW_MAP); 610 mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); 611 mem_ptr_phys = 0UL; 612 mem_ptr_virt = NULL; 613 memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); 614 virt_memory_size = 0; 615 616 /* For memory mapped or busmaster mode, we want the memory address */ 617 if (mem_mapped || (local_mode == 1)) { 618 mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); 619 mem_ptr_phys &= ~0x1fff; /* 8k alignment */ 620 621 if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { 622 printk("hp100: Can only use programmed i/o mode.\n"); 623 mem_ptr_phys = 0; 624 mem_mapped = 0; 625 local_mode = 3; /* Use programmed i/o */ 626 } 627 628 /* We do not need access to shared memory in busmaster mode */ 629 /* However in slave mode we need to remap high (>1GB) card memory */ 630 if (local_mode != 1) { /* = not busmaster */ 631 /* We try with smaller memory sizes, if ioremap fails */ 632 for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { 633 if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { 634#ifdef HP100_DEBUG 635 printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); 636#endif 637 } else { 638#ifdef HP100_DEBUG 639 printk("hp100: %s: remapped 0x%x bytes high PCI memory at 0x%lx to %p.\n", dev->name, virt_memory_size, mem_ptr_phys, mem_ptr_virt); 640#endif 641 break; 642 } 643 } 644 645 if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ 646 printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); 647 local_mode = 3; 648 virt_memory_size = 0; 649 } 650 } 651 } 652 653 if (local_mode == 3) { /* io mapped forced */ 654 mem_mapped = 0; 655 mem_ptr_phys = 0; 656 mem_ptr_virt = NULL; 657 printk("hp100: Using (slow) programmed i/o mode.\n"); 658 } 659 660 /* Initialise the "private" data structure for this card. */ 661 lp = netdev_priv(dev); 662 663 spin_lock_init(&lp->lock); 664 strlcpy(lp->id, eid, HP100_SIG_LEN); 665 lp->chip = chip; 666 lp->mode = local_mode; 667 lp->bus = bus; 668 lp->pci_dev = pci_dev; 669 lp->priority_tx = hp100_priority_tx; 670 lp->rx_ratio = hp100_rx_ratio; 671 lp->mem_ptr_phys = mem_ptr_phys; 672 lp->mem_ptr_virt = mem_ptr_virt; 673 hp100_page(ID_MAC_ADDR); 674 lp->soft_model = hp100_inb(SOFT_MODEL); 675 lp->mac1_mode = HP100_MAC1MODE3; 676 lp->mac2_mode = HP100_MAC2MODE3; 677 memset(&lp->hash_bytes, 0x00, 8); 678 679 dev->base_addr = ioaddr; 680 681 lp->memory_size = memory_size; 682 lp->virt_memory_size = virt_memory_size; 683 lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ 684 685 if (lp->mode == 1) /* busmaster */ 686 dev->netdev_ops = &hp100_bm_netdev_ops; 687 else 688 dev->netdev_ops = &hp100_netdev_ops; 689 690 /* Ask the card for which IRQ line it is configured */ 691 if (bus == HP100_BUS_PCI) { 692 dev->irq = pci_dev->irq; 693 } else { 694 hp100_page(HW_MAP); 695 dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; 696 if (dev->irq == 2) 697 dev->irq = 9; 698 } 699 700 if (lp->mode == 1) /* busmaster */ 701 dev->dma = 4; 702 703 /* Ask the card for its MAC address and store it for later use. */ 704 hp100_page(ID_MAC_ADDR); 705 for (i = uc = 0; i < 6; i++) 706 dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); 707 708 /* Reset statistics (counters) */ 709 hp100_clear_stats(lp, ioaddr); 710 711 /* If busmaster mode is wanted, a dma-capable memory area is needed for 712 * the rx and tx PDLs 713 * PCI cards can access the whole PC memory. Therefore GFP_DMA is not 714 * needed for the allocation of the memory area. 715 */ 716 717 /* TODO: We do not need this with old cards, where PDLs are stored 718 * in the cards shared memory area. But currently, busmaster has been 719 * implemented/tested only with the lassen chip anyway... */ 720 if (lp->mode == 1) { /* busmaster */ 721 dma_addr_t page_baddr; 722 /* Get physically continuous memory for TX & RX PDLs */ 723 /* Conversion to new PCI API : 724 * Pages are always aligned and zeroed, no need to it ourself. 725 * Doc says should be OK for EISA bus as well - Jean II */ 726 lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr); 727 if (!lp->page_vaddr_algn) { 728 err = -ENOMEM; 729 goto out_mem_ptr; 730 } 731 lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); 732 733#ifdef HP100_DEBUG_BM 734 printk("hp100: %s: Reserved DMA memory from 0x%x to 0x%x\n", dev->name, (u_int) lp->page_vaddr_algn, (u_int) lp->page_vaddr_algn + MAX_RINGSIZE); 735#endif 736 lp->rxrcommit = lp->txrcommit = 0; 737 lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); 738 lp->txrhead = lp->txrtail = &(lp->txring[0]); 739 } 740 741 /* Initialise the card. */ 742 /* (I'm not really sure if it's a good idea to do this during probing, but 743 * like this it's assured that the lan connection type can be sensed 744 * correctly) 745 */ 746 hp100_hwinit(dev); 747 748 /* Try to find out which kind of LAN the card is connected to. */ 749 lp->lan_type = hp100_sense_lan(dev); 750 751 /* Print out a message what about what we think we have probed. */ 752 printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); 753 switch (bus) { 754 case HP100_BUS_EISA: 755 printk("EISA"); 756 break; 757 case HP100_BUS_PCI: 758 printk("PCI"); 759 break; 760 default: 761 printk("ISA"); 762 break; 763 } 764 printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); 765 766 if (lp->mode == 2) { /* memory mapped */ 767 printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, 768 (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); 769 if (mem_ptr_virt) 770 printk(" (virtual base %p)", mem_ptr_virt); 771 printk(".\n"); 772 773 /* Set for info when doing ifconfig */ 774 dev->mem_start = mem_ptr_phys; 775 dev->mem_end = mem_ptr_phys + lp->memory_size; 776 } 777 778 printk("hp100: "); 779 if (lp->lan_type != HP100_LAN_ERR) 780 printk("Adapter is attached to "); 781 switch (lp->lan_type) { 782 case HP100_LAN_100: 783 printk("100Mb/s Voice Grade AnyLAN network.\n"); 784 break; 785 case HP100_LAN_10: 786 printk("10Mb/s network (10baseT).\n"); 787 break; 788 case HP100_LAN_COAX: 789 printk("10Mb/s network (coax).\n"); 790 break; 791 default: 792 printk("Warning! Link down.\n"); 793 } 794 795 err = register_netdev(dev); 796 if (err) 797 goto out3; 798 799 return 0; 800out3: 801 if (local_mode == 1) 802 pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, 803 lp->page_vaddr_algn, 804 virt_to_whatever(dev, lp->page_vaddr_algn)); 805out_mem_ptr: 806 if (mem_ptr_virt) 807 iounmap(mem_ptr_virt); 808out2: 809 release_region(ioaddr, HP100_REGION_SIZE); 810out1: 811 return err; 812} 813 814/* This procedure puts the card into a stable init state */ 815static void hp100_hwinit(struct net_device *dev) 816{ 817 int ioaddr = dev->base_addr; 818 struct hp100_private *lp = netdev_priv(dev); 819 820#ifdef HP100_DEBUG_B 821 hp100_outw(0x4202, TRACE); 822 printk("hp100: %s: hwinit\n", dev->name); 823#endif 824 825 /* Initialise the card. -------------------------------------------- */ 826 827 /* Clear all pending Ints and disable Ints */ 828 hp100_page(PERFORMANCE); 829 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 830 hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ 831 832 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 833 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); 834 835 if (lp->mode == 1) { 836 hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ 837 wait(); 838 } else { 839 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 840 hp100_cascade_reset(dev, 1); 841 hp100_page(MAC_CTRL); 842 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); 843 } 844 845 /* Initiate EEPROM reload */ 846 hp100_load_eeprom(dev, 0); 847 848 wait(); 849 850 /* Go into reset again. */ 851 hp100_cascade_reset(dev, 1); 852 853 /* Set Option Registers to a safe state */ 854 hp100_outw(HP100_DEBUG_EN | 855 HP100_RX_HDR | 856 HP100_EE_EN | 857 HP100_BM_WRITE | 858 HP100_BM_READ | HP100_RESET_HB | 859 HP100_FAKE_INT | 860 HP100_INT_EN | 861 HP100_MEM_EN | 862 HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); 863 864 hp100_outw(HP100_TRI_INT | 865 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); 866 867 hp100_outb(HP100_PRIORITY_TX | 868 HP100_ADV_NXT_PKT | 869 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); 870 871 /* TODO: Configure MMU for Ram Test. */ 872 /* TODO: Ram Test. */ 873 874 /* Re-check if adapter is still at same i/o location */ 875 /* (If the base i/o in eeprom has been changed but the */ 876 /* registers had not been changed, a reload of the eeprom */ 877 /* would move the adapter to the address stored in eeprom */ 878 879 /* TODO: Code to implement. */ 880 881 /* Until here it was code from HWdiscover procedure. */ 882 /* Next comes code from mmuinit procedure of SCO BM driver which is 883 * called from HWconfigure in the SCO driver. */ 884 885 /* Initialise MMU, eventually switch on Busmaster Mode, initialise 886 * multicast filter... 887 */ 888 hp100_mmuinit(dev); 889 890 /* We don't turn the interrupts on here - this is done by start_interface. */ 891 wait(); /* TODO: Do we really need this? */ 892 893 /* Enable Hardware (e.g. unreset) */ 894 hp100_cascade_reset(dev, 0); 895 896 /* ------- initialisation complete ----------- */ 897 898 /* Finally try to log in the Hub if there may be a VG connection. */ 899 if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) 900 hp100_login_to_vg_hub(dev, 0); /* relogin */ 901 902} 903 904 905/* 906 * mmuinit - Reinitialise Cascade MMU and MAC settings. 907 * Note: Must already be in reset and leaves card in reset. 908 */ 909static void hp100_mmuinit(struct net_device *dev) 910{ 911 int ioaddr = dev->base_addr; 912 struct hp100_private *lp = netdev_priv(dev); 913 int i; 914 915#ifdef HP100_DEBUG_B 916 hp100_outw(0x4203, TRACE); 917 printk("hp100: %s: mmuinit\n", dev->name); 918#endif 919 920#ifdef HP100_DEBUG 921 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { 922 printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); 923 return; 924 } 925#endif 926 927 /* Make sure IRQs are masked off and ack'ed. */ 928 hp100_page(PERFORMANCE); 929 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 930 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 931 932 /* 933 * Enable Hardware 934 * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En 935 * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable 936 * - Clear Priority, Advance Pkt and Xmit Cmd 937 */ 938 939 hp100_outw(HP100_DEBUG_EN | 940 HP100_RX_HDR | 941 HP100_EE_EN | HP100_RESET_HB | 942 HP100_IO_EN | 943 HP100_FAKE_INT | 944 HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 945 946 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); 947 948 if (lp->mode == 1) { /* busmaster */ 949 hp100_outw(HP100_BM_WRITE | 950 HP100_BM_READ | 951 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); 952 } else if (lp->mode == 2) { /* memory mapped */ 953 hp100_outw(HP100_BM_WRITE | 954 HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); 955 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); 956 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); 957 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 958 } else if (lp->mode == 3) { /* i/o mapped mode */ 959 hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | 960 HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 961 } 962 963 hp100_page(HW_MAP); 964 hp100_outb(0, EARLYRXCFG); 965 hp100_outw(0, EARLYTXCFG); 966 967 /* 968 * Enable Bus Master mode 969 */ 970 if (lp->mode == 1) { /* busmaster */ 971 /* Experimental: Set some PCI configuration bits */ 972 hp100_page(HW_MAP); 973 hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ 974 hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ 975 976 /* PCI Bus failures should result in a Misc. Interrupt */ 977 hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); 978 979 hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); 980 hp100_page(HW_MAP); 981 /* Use Burst Mode and switch on PAGE_CK */ 982 hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); 983 if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) 984 hp100_orb(HP100_BM_PAGE_CK, BM); 985 hp100_orb(HP100_BM_MASTER, BM); 986 } else { /* not busmaster */ 987 988 hp100_page(HW_MAP); 989 hp100_andb(~HP100_BM_MASTER, BM); 990 } 991 992 /* 993 * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs 994 */ 995 hp100_page(MMU_CFG); 996 if (lp->mode == 1) { /* only needed for Busmaster */ 997 int xmit_stop, recv_stop; 998 999 if ((lp->chip == HP100_CHIPID_RAINIER) || 1000 (lp->chip == HP100_CHIPID_SHASTA)) { 1001 int pdl_stop; 1002 1003 /* 1004 * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and 1005 * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded 1006 * to the next higher 1k boundary) bytes for the rx-pdl's 1007 * Note: For non-etr chips the transmit stop register must be 1008 * programmed on a 1k boundary, i.e. bits 9:0 must be zero. 1009 */ 1010 pdl_stop = lp->memory_size; 1011 xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); 1012 recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); 1013 hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); 1014#ifdef HP100_DEBUG_BM 1015 printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); 1016#endif 1017 } else { 1018 /* ETR chip (Lassen) in busmaster mode */ 1019 xmit_stop = (lp->memory_size) - 1; 1020 recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); 1021 } 1022 1023 hp100_outw(xmit_stop >> 4, TX_MEM_STOP); 1024 hp100_outw(recv_stop >> 4, RX_MEM_STOP); 1025#ifdef HP100_DEBUG_BM 1026 printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); 1027 printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); 1028#endif 1029 } else { 1030 /* Slave modes (memory mapped and programmed io) */ 1031 hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); 1032 hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); 1033#ifdef HP100_DEBUG 1034 printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); 1035 printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); 1036#endif 1037 } 1038 1039 /* Write MAC address into page 1 */ 1040 hp100_page(MAC_ADDRESS); 1041 for (i = 0; i < 6; i++) 1042 hp100_outb(dev->dev_addr[i], MAC_ADDR + i); 1043 1044 /* Zero the multicast hash registers */ 1045 for (i = 0; i < 8; i++) 1046 hp100_outb(0x0, HASH_BYTE0 + i); 1047 1048 /* Set up MAC defaults */ 1049 hp100_page(MAC_CTRL); 1050 1051 /* Go to LAN Page and zero all filter bits */ 1052 /* Zero accept error, accept multicast, accept broadcast and accept */ 1053 /* all directed packet bits */ 1054 hp100_andb(~(HP100_RX_EN | 1055 HP100_TX_EN | 1056 HP100_ACC_ERRORED | 1057 HP100_ACC_MC | 1058 HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); 1059 1060 hp100_outb(0x00, MAC_CFG_2); 1061 1062 /* Zero the frame format bit. This works around a training bug in the */ 1063 /* new hubs. */ 1064 hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ 1065 1066 if (lp->priority_tx) 1067 hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); 1068 else 1069 hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); 1070 1071 hp100_outb(HP100_ADV_NXT_PKT | 1072 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); 1073 1074 /* If busmaster, initialize the PDLs */ 1075 if (lp->mode == 1) 1076 hp100_init_pdls(dev); 1077 1078 /* Go to performance page and initialize isr and imr registers */ 1079 hp100_page(PERFORMANCE); 1080 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 1081 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 1082} 1083 1084/* 1085 * open/close functions 1086 */ 1087 1088static int hp100_open(struct net_device *dev) 1089{ 1090 struct hp100_private *lp = netdev_priv(dev); 1091#ifdef HP100_DEBUG_B 1092 int ioaddr = dev->base_addr; 1093#endif 1094 1095#ifdef HP100_DEBUG_B 1096 hp100_outw(0x4204, TRACE); 1097 printk("hp100: %s: open\n", dev->name); 1098#endif 1099 1100 /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ 1101 if (request_irq(dev->irq, hp100_interrupt, 1102 lp->bus == HP100_BUS_PCI || lp->bus == 1103 HP100_BUS_EISA ? IRQF_SHARED : 0, 1104 dev->name, dev)) { 1105 printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); 1106 return -EAGAIN; 1107 } 1108 1109 dev->trans_start = jiffies; /* prevent tx timeout */ 1110 netif_start_queue(dev); 1111 1112 lp->lan_type = hp100_sense_lan(dev); 1113 lp->mac1_mode = HP100_MAC1MODE3; 1114 lp->mac2_mode = HP100_MAC2MODE3; 1115 memset(&lp->hash_bytes, 0x00, 8); 1116 1117 hp100_stop_interface(dev); 1118 1119 hp100_hwinit(dev); 1120 1121 hp100_start_interface(dev); /* sets mac modes, enables interrupts */ 1122 1123 return 0; 1124} 1125 1126/* The close function is called when the interface is to be brought down */ 1127static int hp100_close(struct net_device *dev) 1128{ 1129 int ioaddr = dev->base_addr; 1130 struct hp100_private *lp = netdev_priv(dev); 1131 1132#ifdef HP100_DEBUG_B 1133 hp100_outw(0x4205, TRACE); 1134 printk("hp100: %s: close\n", dev->name); 1135#endif 1136 1137 hp100_page(PERFORMANCE); 1138 hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ 1139 1140 hp100_stop_interface(dev); 1141 1142 if (lp->lan_type == HP100_LAN_100) 1143 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1144 1145 netif_stop_queue(dev); 1146 1147 free_irq(dev->irq, dev); 1148 1149#ifdef HP100_DEBUG 1150 printk("hp100: %s: close LSW = 0x%x\n", dev->name, 1151 hp100_inw(OPTION_LSW)); 1152#endif 1153 1154 return 0; 1155} 1156 1157 1158/* 1159 * Configure the PDL Rx rings and LAN 1160 */ 1161static void hp100_init_pdls(struct net_device *dev) 1162{ 1163 struct hp100_private *lp = netdev_priv(dev); 1164 hp100_ring_t *ringptr; 1165 u_int *pageptr; /* Warning : increment by 4 - Jean II */ 1166 int i; 1167 1168#ifdef HP100_DEBUG_B 1169 int ioaddr = dev->base_addr; 1170#endif 1171 1172#ifdef HP100_DEBUG_B 1173 hp100_outw(0x4206, TRACE); 1174 printk("hp100: %s: init pdls\n", dev->name); 1175#endif 1176 1177 if (!lp->page_vaddr_algn) 1178 printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); 1179 else { 1180 /* pageptr shall point into the DMA accessible memory region */ 1181 /* we use this pointer to status the upper limit of allocated */ 1182 /* memory in the allocated page. */ 1183 /* note: align the pointers to the pci cache line size */ 1184 memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ 1185 pageptr = lp->page_vaddr_algn; 1186 1187 lp->rxrcommit = 0; 1188 ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); 1189 1190 /* Initialise Rx Ring */ 1191 for (i = MAX_RX_PDL - 1; i >= 0; i--) { 1192 lp->rxring[i].next = ringptr; 1193 ringptr = &(lp->rxring[i]); 1194 pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); 1195 } 1196 1197 /* Initialise Tx Ring */ 1198 lp->txrcommit = 0; 1199 ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); 1200 for (i = MAX_TX_PDL - 1; i >= 0; i--) { 1201 lp->txring[i].next = ringptr; 1202 ringptr = &(lp->txring[i]); 1203 pageptr += hp100_init_txpdl(dev, ringptr, pageptr); 1204 } 1205 } 1206} 1207 1208 1209/* These functions "format" the entries in the pdl structure */ 1210/* They return how much memory the fragments need. */ 1211static int hp100_init_rxpdl(struct net_device *dev, 1212 register hp100_ring_t * ringptr, 1213 register u32 * pdlptr) 1214{ 1215 /* pdlptr is starting address for this pdl */ 1216 1217 if (0 != (((unsigned long) pdlptr) & 0xf)) 1218 printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", 1219 dev->name, (unsigned long) pdlptr); 1220 1221 ringptr->pdl = pdlptr + 1; 1222 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); 1223 ringptr->skb = NULL; 1224 1225 /* 1226 * Write address and length of first PDL Fragment (which is used for 1227 * storing the RX-Header 1228 * We use the 4 bytes _before_ the PDH in the pdl memory area to 1229 * store this information. (PDH is at offset 0x04) 1230 */ 1231 /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ 1232 1233 *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ 1234 *(pdlptr + 3) = 4; /* Length Frag 1 */ 1235 1236 return roundup(MAX_RX_FRAG * 2 + 2, 4); 1237} 1238 1239 1240static int hp100_init_txpdl(struct net_device *dev, 1241 register hp100_ring_t * ringptr, 1242 register u32 * pdlptr) 1243{ 1244 if (0 != (((unsigned long) pdlptr) & 0xf)) 1245 printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); 1246 1247 ringptr->pdl = pdlptr; /* +1; */ 1248 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ 1249 ringptr->skb = NULL; 1250 1251 return roundup(MAX_TX_FRAG * 2 + 2, 4); 1252} 1253 1254/* 1255 * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes 1256 * for possible odd word alignment rounding up to next dword and set PDL 1257 * address for fragment#2 1258 * Returns: 0 if unable to allocate skb_buff 1259 * 1 if successful 1260 */ 1261static int hp100_build_rx_pdl(hp100_ring_t * ringptr, 1262 struct net_device *dev) 1263{ 1264#ifdef HP100_DEBUG_B 1265 int ioaddr = dev->base_addr; 1266#endif 1267#ifdef HP100_DEBUG_BM 1268 u_int *p; 1269#endif 1270 1271#ifdef HP100_DEBUG_B 1272 hp100_outw(0x4207, TRACE); 1273 printk("hp100: %s: build rx pdl\n", dev->name); 1274#endif 1275 1276 /* Allocate skb buffer of maximum size */ 1277 /* Note: This depends on the alloc_skb functions allocating more 1278 * space than requested, i.e. aligning to 16bytes */ 1279 1280 ringptr->skb = netdev_alloc_skb(dev, roundup(MAX_ETHER_SIZE + 2, 4)); 1281 1282 if (NULL != ringptr->skb) { 1283 /* 1284 * Reserve 2 bytes at the head of the buffer to land the IP header 1285 * on a long word boundary (According to the Network Driver section 1286 * in the Linux KHG, this should help to increase performance.) 1287 */ 1288 skb_reserve(ringptr->skb, 2); 1289 1290 ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE); 1291 1292 /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ 1293 /* Note: 1st Fragment is used for the 4 byte packet status 1294 * (receive header). Its PDL entries are set up by init_rxpdl. So 1295 * here we only have to set up the PDL fragment entries for the data 1296 * part. Those 4 bytes will be stored in the DMA memory region 1297 * directly before the PDL. 1298 */ 1299#ifdef HP100_DEBUG_BM 1300 printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", 1301 dev->name, (u_int) ringptr->pdl, 1302 roundup(MAX_ETHER_SIZE + 2, 4), 1303 (unsigned int) ringptr->skb->data); 1304#endif 1305 1306 /* Conversion to new PCI API : map skbuf data to PCI bus. 1307 * Doc says it's OK for EISA as well - Jean II */ 1308 ringptr->pdl[0] = 0x00020000; /* Write PDH */ 1309 ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), 1310 ringptr->skb->data); 1311 ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ 1312 1313#ifdef HP100_DEBUG_BM 1314 for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) 1315 printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); 1316#endif 1317 return 1; 1318 } 1319 /* else: */ 1320 /* alloc_skb failed (no memory) -> still can receive the header 1321 * fragment into PDL memory. make PDL safe by clearing msgptr and 1322 * making the PDL only 1 fragment (i.e. the 4 byte packet status) 1323 */ 1324#ifdef HP100_DEBUG_BM 1325 printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); 1326#endif 1327 1328 ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ 1329 1330 return 0; 1331} 1332 1333/* 1334 * hp100_rxfill - attempt to fill the Rx Ring will empty skb's 1335 * 1336 * Makes assumption that skb's are always contiguous memory areas and 1337 * therefore PDLs contain only 2 physical fragments. 1338 * - While the number of Rx PDLs with buffers is less than maximum 1339 * a. Get a maximum packet size skb 1340 * b. Put the physical address of the buffer into the PDL. 1341 * c. Output physical address of PDL to adapter. 1342 */ 1343static void hp100_rxfill(struct net_device *dev) 1344{ 1345 int ioaddr = dev->base_addr; 1346 1347 struct hp100_private *lp = netdev_priv(dev); 1348 hp100_ring_t *ringptr; 1349 1350#ifdef HP100_DEBUG_B 1351 hp100_outw(0x4208, TRACE); 1352 printk("hp100: %s: rxfill\n", dev->name); 1353#endif 1354 1355 hp100_page(PERFORMANCE); 1356 1357 while (lp->rxrcommit < MAX_RX_PDL) { 1358 /* 1359 ** Attempt to get a buffer and build a Rx PDL. 1360 */ 1361 ringptr = lp->rxrtail; 1362 if (0 == hp100_build_rx_pdl(ringptr, dev)) { 1363 return; /* None available, return */ 1364 } 1365 1366 /* Hand this PDL over to the card */ 1367 /* Note: This needs performance page selected! */ 1368#ifdef HP100_DEBUG_BM 1369 printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", 1370 dev->name, lp->rxrcommit, (u_int) ringptr->pdl, 1371 (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); 1372#endif 1373 1374 hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); 1375 1376 lp->rxrcommit += 1; 1377 lp->rxrtail = ringptr->next; 1378 } 1379} 1380 1381/* 1382 * BM_shutdown - shutdown bus mastering and leave chip in reset state 1383 */ 1384 1385static void hp100_BM_shutdown(struct net_device *dev) 1386{ 1387 int ioaddr = dev->base_addr; 1388 struct hp100_private *lp = netdev_priv(dev); 1389 unsigned long time; 1390 1391#ifdef HP100_DEBUG_B 1392 hp100_outw(0x4209, TRACE); 1393 printk("hp100: %s: bm shutdown\n", dev->name); 1394#endif 1395 1396 hp100_page(PERFORMANCE); 1397 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 1398 hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ 1399 1400 /* Ensure Interrupts are off */ 1401 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 1402 1403 /* Disable all MAC activity */ 1404 hp100_page(MAC_CTRL); 1405 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ 1406 1407 /* If cascade MMU is not already in reset */ 1408 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { 1409 /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so 1410 * MMU pointers will not be reset out from underneath 1411 */ 1412 hp100_page(MAC_CTRL); 1413 for (time = 0; time < 5000; time++) { 1414 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) 1415 break; 1416 } 1417 1418 /* Shutdown algorithm depends on the generation of Cascade */ 1419 if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ 1420 /* Disable Busmaster mode and wait for bit to go to zero. */ 1421 hp100_page(HW_MAP); 1422 hp100_andb(~HP100_BM_MASTER, BM); 1423 /* 100 ms timeout */ 1424 for (time = 0; time < 32000; time++) { 1425 if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) 1426 break; 1427 } 1428 } else { /* Shasta or Rainier Shutdown/Reset */ 1429 /* To ensure all bus master inloading activity has ceased, 1430 * wait for no Rx PDAs or no Rx packets on card. 1431 */ 1432 hp100_page(PERFORMANCE); 1433 /* 100 ms timeout */ 1434 for (time = 0; time < 10000; time++) { 1435 /* RX_PDL: PDLs not executed. */ 1436 /* RX_PKT_CNT: RX'd packets on card. */ 1437 if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) 1438 break; 1439 } 1440 1441 if (time >= 10000) 1442 printk("hp100: %s: BM shutdown error.\n", dev->name); 1443 1444 /* To ensure all bus master outloading activity has ceased, 1445 * wait until the Tx PDA count goes to zero or no more Tx space 1446 * available in the Tx region of the card. 1447 */ 1448 /* 100 ms timeout */ 1449 for (time = 0; time < 10000; time++) { 1450 if ((0 == hp100_inb(TX_PKT_CNT)) && 1451 (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) 1452 break; 1453 } 1454 1455 /* Disable Busmaster mode */ 1456 hp100_page(HW_MAP); 1457 hp100_andb(~HP100_BM_MASTER, BM); 1458 } /* end of shutdown procedure for non-etr parts */ 1459 1460 hp100_cascade_reset(dev, 1); 1461 } 1462 hp100_page(PERFORMANCE); 1463 /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ 1464 /* Busmaster mode should be shut down now. */ 1465} 1466 1467static int hp100_check_lan(struct net_device *dev) 1468{ 1469 struct hp100_private *lp = netdev_priv(dev); 1470 1471 if (lp->lan_type < 0) { /* no LAN type detected yet? */ 1472 hp100_stop_interface(dev); 1473 if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { 1474 printk("hp100: %s: no connection found - check wire\n", dev->name); 1475 hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ 1476 return -EIO; 1477 } 1478 if (lp->lan_type == HP100_LAN_100) 1479 lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ 1480 hp100_start_interface(dev); 1481 } 1482 return 0; 1483} 1484 1485/* 1486 * transmit functions 1487 */ 1488 1489/* tx function for busmaster mode */ 1490static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, 1491 struct net_device *dev) 1492{ 1493 unsigned long flags; 1494 int i, ok_flag; 1495 int ioaddr = dev->base_addr; 1496 struct hp100_private *lp = netdev_priv(dev); 1497 hp100_ring_t *ringptr; 1498 1499#ifdef HP100_DEBUG_B 1500 hp100_outw(0x4210, TRACE); 1501 printk("hp100: %s: start_xmit_bm\n", dev->name); 1502#endif 1503 if (skb->len <= 0) 1504 goto drop; 1505 1506 if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) 1507 return NETDEV_TX_OK; 1508 1509 /* Get Tx ring tail pointer */ 1510 if (lp->txrtail->next == lp->txrhead) { 1511 /* No memory. */ 1512#ifdef HP100_DEBUG 1513 printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); 1514#endif 1515 /* not waited long enough since last tx? */ 1516 if (time_before(jiffies, dev_trans_start(dev) + HZ)) 1517 goto drop; 1518 1519 if (hp100_check_lan(dev)) 1520 goto drop; 1521 1522 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { 1523 /* we have a 100Mb/s adapter but it isn't connected to hub */ 1524 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); 1525 hp100_stop_interface(dev); 1526 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1527 hp100_start_interface(dev); 1528 } else { 1529 spin_lock_irqsave(&lp->lock, flags); 1530 hp100_ints_off(); /* Useful ? Jean II */ 1531 i = hp100_sense_lan(dev); 1532 hp100_ints_on(); 1533 spin_unlock_irqrestore(&lp->lock, flags); 1534 if (i == HP100_LAN_ERR) 1535 printk("hp100: %s: link down detected\n", dev->name); 1536 else if (lp->lan_type != i) { /* cable change! */ 1537 /* it's very hard - all network settings must be changed!!! */ 1538 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); 1539 lp->lan_type = i; 1540 hp100_stop_interface(dev); 1541 if (lp->lan_type == HP100_LAN_100) 1542 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1543 hp100_start_interface(dev); 1544 } else { 1545 printk("hp100: %s: interface reset\n", dev->name); 1546 hp100_stop_interface(dev); 1547 if (lp->lan_type == HP100_LAN_100) 1548 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1549 hp100_start_interface(dev); 1550 } 1551 } 1552 1553 goto drop; 1554 } 1555 1556 /* 1557 * we have to turn int's off before modifying this, otherwise 1558 * a tx_pdl_cleanup could occur at the same time 1559 */ 1560 spin_lock_irqsave(&lp->lock, flags); 1561 ringptr = lp->txrtail; 1562 lp->txrtail = ringptr->next; 1563 1564 /* Check whether packet has minimal packet size */ 1565 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; 1566 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; 1567 1568 ringptr->skb = skb; 1569 ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ 1570 if (lp->chip == HP100_CHIPID_SHASTA) { 1571 /* TODO:Could someone who has the EISA card please check if this works? */ 1572 ringptr->pdl[2] = i; 1573 } else { /* Lassen */ 1574 /* In the PDL, don't use the padded size but the real packet size: */ 1575 ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ 1576 } 1577 /* Conversion to new PCI API : map skbuf data to PCI bus. 1578 * Doc says it's OK for EISA as well - Jean II */ 1579 ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ 1580 1581 /* Hand this PDL to the card. */ 1582 hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ 1583 1584 lp->txrcommit++; 1585 1586 dev->stats.tx_packets++; 1587 dev->stats.tx_bytes += skb->len; 1588 1589 spin_unlock_irqrestore(&lp->lock, flags); 1590 1591 return NETDEV_TX_OK; 1592 1593drop: 1594 dev_kfree_skb(skb); 1595 return NETDEV_TX_OK; 1596} 1597 1598 1599/* clean_txring checks if packets have been sent by the card by reading 1600 * the TX_PDL register from the performance page and comparing it to the 1601 * number of committed packets. It then frees the skb's of the packets that 1602 * obviously have been sent to the network. 1603 * 1604 * Needs the PERFORMANCE page selected. 1605 */ 1606static void hp100_clean_txring(struct net_device *dev) 1607{ 1608 struct hp100_private *lp = netdev_priv(dev); 1609 int ioaddr = dev->base_addr; 1610 int donecount; 1611 1612#ifdef HP100_DEBUG_B 1613 hp100_outw(0x4211, TRACE); 1614 printk("hp100: %s: clean txring\n", dev->name); 1615#endif 1616 1617 /* How many PDLs have been transmitted? */ 1618 donecount = (lp->txrcommit) - hp100_inb(TX_PDL); 1619 1620#ifdef HP100_DEBUG 1621 if (donecount > MAX_TX_PDL) 1622 printk("hp100: %s: Warning: More PDLs transmitted than committed to card???\n", dev->name); 1623#endif 1624 1625 for (; 0 != donecount; donecount--) { 1626#ifdef HP100_DEBUG_BM 1627 printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", 1628 dev->name, (u_int) lp->txrhead->skb->data, 1629 lp->txrcommit, hp100_inb(TX_PDL), donecount); 1630#endif 1631 /* Conversion to new PCI API : NOP */ 1632 pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); 1633 dev_consume_skb_any(lp->txrhead->skb); 1634 lp->txrhead->skb = NULL; 1635 lp->txrhead = lp->txrhead->next; 1636 lp->txrcommit--; 1637 } 1638} 1639 1640/* tx function for slave modes */ 1641static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, 1642 struct net_device *dev) 1643{ 1644 unsigned long flags; 1645 int i, ok_flag; 1646 int ioaddr = dev->base_addr; 1647 u_short val; 1648 struct hp100_private *lp = netdev_priv(dev); 1649 1650#ifdef HP100_DEBUG_B 1651 hp100_outw(0x4212, TRACE); 1652 printk("hp100: %s: start_xmit\n", dev->name); 1653#endif 1654 if (skb->len <= 0) 1655 goto drop; 1656 1657 if (hp100_check_lan(dev)) 1658 goto drop; 1659 1660 /* If there is not enough free memory on the card... */ 1661 i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; 1662 if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { 1663#ifdef HP100_DEBUG 1664 printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); 1665#endif 1666 /* not waited long enough since last failed tx try? */ 1667 if (time_before(jiffies, dev_trans_start(dev) + HZ)) { 1668#ifdef HP100_DEBUG 1669 printk("hp100: %s: trans_start timing problem\n", 1670 dev->name); 1671#endif 1672 goto drop; 1673 } 1674 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { 1675 /* we have a 100Mb/s adapter but it isn't connected to hub */ 1676 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); 1677 hp100_stop_interface(dev); 1678 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1679 hp100_start_interface(dev); 1680 } else { 1681 spin_lock_irqsave(&lp->lock, flags); 1682 hp100_ints_off(); /* Useful ? Jean II */ 1683 i = hp100_sense_lan(dev); 1684 hp100_ints_on(); 1685 spin_unlock_irqrestore(&lp->lock, flags); 1686 if (i == HP100_LAN_ERR) 1687 printk("hp100: %s: link down detected\n", dev->name); 1688 else if (lp->lan_type != i) { /* cable change! */ 1689 /* it's very hard - all network setting must be changed!!! */ 1690 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); 1691 lp->lan_type = i; 1692 hp100_stop_interface(dev); 1693 if (lp->lan_type == HP100_LAN_100) 1694 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1695 hp100_start_interface(dev); 1696 } else { 1697 printk("hp100: %s: interface reset\n", dev->name); 1698 hp100_stop_interface(dev); 1699 if (lp->lan_type == HP100_LAN_100) 1700 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1701 hp100_start_interface(dev); 1702 mdelay(1); 1703 } 1704 } 1705 goto drop; 1706 } 1707 1708 for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { 1709#ifdef HP100_DEBUG_TX 1710 printk("hp100: %s: start_xmit: busy\n", dev->name); 1711#endif 1712 } 1713 1714 spin_lock_irqsave(&lp->lock, flags); 1715 hp100_ints_off(); 1716 val = hp100_inw(IRQ_STATUS); 1717 /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set 1718 * when the current packet being transmitted on the wire is completed. */ 1719 hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); 1720#ifdef HP100_DEBUG_TX 1721 printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", 1722 dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); 1723#endif 1724 1725 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; 1726 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; 1727 1728 hp100_outw(i, DATA32); /* tell card the total packet length */ 1729 hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ 1730 1731 if (lp->mode == 2) { /* memory mapped */ 1732 /* Note: The J2585B needs alignment to 32bits here! */ 1733 memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); 1734 if (!ok_flag) 1735 memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); 1736 } else { /* programmed i/o */ 1737 outsl(ioaddr + HP100_REG_DATA32, skb->data, 1738 (skb->len + 3) >> 2); 1739 if (!ok_flag) 1740 for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) 1741 hp100_outl(0, DATA32); 1742 } 1743 1744 hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ 1745 1746 dev->stats.tx_packets++; 1747 dev->stats.tx_bytes += skb->len; 1748 hp100_ints_on(); 1749 spin_unlock_irqrestore(&lp->lock, flags); 1750 1751 dev_consume_skb_any(skb); 1752 1753#ifdef HP100_DEBUG_TX 1754 printk("hp100: %s: start_xmit: end\n", dev->name); 1755#endif 1756 1757 return NETDEV_TX_OK; 1758 1759drop: 1760 dev_kfree_skb(skb); 1761 return NETDEV_TX_OK; 1762 1763} 1764 1765 1766/* 1767 * Receive Function (Non-Busmaster mode) 1768 * Called when an "Receive Packet" interrupt occurs, i.e. the receive 1769 * packet counter is non-zero. 1770 * For non-busmaster, this function does the whole work of transferring 1771 * the packet to the host memory and then up to higher layers via skb 1772 * and netif_rx. 1773 */ 1774 1775static void hp100_rx(struct net_device *dev) 1776{ 1777 int packets, pkt_len; 1778 int ioaddr = dev->base_addr; 1779 struct hp100_private *lp = netdev_priv(dev); 1780 u_int header; 1781 struct sk_buff *skb; 1782 1783#ifdef DEBUG_B 1784 hp100_outw(0x4213, TRACE); 1785 printk("hp100: %s: rx\n", dev->name); 1786#endif 1787 1788 /* First get indication of received lan packet */ 1789 /* RX_PKT_CND indicates the number of packets which have been fully */ 1790 /* received onto the card but have not been fully transferred of the card */ 1791 packets = hp100_inb(RX_PKT_CNT); 1792#ifdef HP100_DEBUG_RX 1793 if (packets > 1) 1794 printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); 1795#endif 1796 1797 while (packets-- > 0) { 1798 /* If ADV_NXT_PKT is still set, we have to wait until the card has */ 1799 /* really advanced to the next packet. */ 1800 for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { 1801#ifdef HP100_DEBUG_RX 1802 printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); 1803#endif 1804 } 1805 1806 /* First we get the header, which contains information about the */ 1807 /* actual length of the received packet. */ 1808 if (lp->mode == 2) { /* memory mapped mode */ 1809 header = readl(lp->mem_ptr_virt); 1810 } else /* programmed i/o */ 1811 header = hp100_inl(DATA32); 1812 1813 pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; 1814 1815#ifdef HP100_DEBUG_RX 1816 printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", 1817 dev->name, header & HP100_PKT_LEN_MASK, 1818 (header >> 16) & 0xfff8, (header >> 16) & 7); 1819#endif 1820 1821 /* Now we allocate the skb and transfer the data into it. */ 1822 skb = netdev_alloc_skb(dev, pkt_len + 2); 1823 if (skb == NULL) { /* Not enough memory->drop packet */ 1824#ifdef HP100_DEBUG 1825 printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", 1826 dev->name, pkt_len); 1827#endif 1828 dev->stats.rx_dropped++; 1829 } else { /* skb successfully allocated */ 1830 1831 u_char *ptr; 1832 1833 skb_reserve(skb,2); 1834 1835 /* ptr to start of the sk_buff data area */ 1836 skb_put(skb, pkt_len); 1837 ptr = skb->data; 1838 1839 /* Now transfer the data from the card into that area */ 1840 if (lp->mode == 2) 1841 memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); 1842 else /* io mapped */ 1843 insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); 1844 1845 skb->protocol = eth_type_trans(skb, dev); 1846 1847#ifdef HP100_DEBUG_RX 1848 printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 1849 dev->name, ptr[0], ptr[1], ptr[2], ptr[3], 1850 ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], 1851 ptr[9], ptr[10], ptr[11]); 1852#endif 1853 netif_rx(skb); 1854 dev->stats.rx_packets++; 1855 dev->stats.rx_bytes += pkt_len; 1856 } 1857 1858 /* Indicate the card that we have got the packet */ 1859 hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); 1860 1861 switch (header & 0x00070000) { 1862 case (HP100_MULTI_ADDR_HASH << 16): 1863 case (HP100_MULTI_ADDR_NO_HASH << 16): 1864 dev->stats.multicast++; 1865 break; 1866 } 1867 } /* end of while(there are packets) loop */ 1868#ifdef HP100_DEBUG_RX 1869 printk("hp100_rx: %s: end\n", dev->name); 1870#endif 1871} 1872 1873/* 1874 * Receive Function for Busmaster Mode 1875 */ 1876static void hp100_rx_bm(struct net_device *dev) 1877{ 1878 int ioaddr = dev->base_addr; 1879 struct hp100_private *lp = netdev_priv(dev); 1880 hp100_ring_t *ptr; 1881 u_int header; 1882 int pkt_len; 1883 1884#ifdef HP100_DEBUG_B 1885 hp100_outw(0x4214, TRACE); 1886 printk("hp100: %s: rx_bm\n", dev->name); 1887#endif 1888 1889#ifdef HP100_DEBUG 1890 if (0 == lp->rxrcommit) { 1891 printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); 1892 return; 1893 } else 1894 /* RX_PKT_CNT states how many PDLs are currently formatted and available to 1895 * the cards BM engine */ 1896 if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { 1897 printk("hp100: %s: More packets received than committed? RX_PKT_CNT=0x%x, commit=0x%x\n", 1898 dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, 1899 lp->rxrcommit); 1900 return; 1901 } 1902#endif 1903 1904 while ((lp->rxrcommit > hp100_inb(RX_PDL))) { 1905 /* 1906 * The packet was received into the pdl pointed to by lp->rxrhead ( 1907 * the oldest pdl in the ring 1908 */ 1909 1910 /* First we get the header, which contains information about the */ 1911 /* actual length of the received packet. */ 1912 1913 ptr = lp->rxrhead; 1914 1915 header = *(ptr->pdl - 1); 1916 pkt_len = (header & HP100_PKT_LEN_MASK); 1917 1918 /* Conversion to new PCI API : NOP */ 1919 pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); 1920 1921#ifdef HP100_DEBUG_BM 1922 printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", 1923 dev->name, (u_int) (ptr->pdl - 1), (u_int) header, 1924 pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); 1925 printk("hp100: %s: RX_PDL_COUNT:0x%x TX_PDL_COUNT:0x%x, RX_PKT_CNT=0x%x PDH=0x%x, Data@0x%x len=0x%x\n", 1926 dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), 1927 hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), 1928 (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); 1929#endif 1930 1931 if ((pkt_len >= MIN_ETHER_SIZE) && 1932 (pkt_len <= MAX_ETHER_SIZE)) { 1933 if (ptr->skb == NULL) { 1934 printk("hp100: %s: rx_bm: skb null\n", dev->name); 1935 /* can happen if we only allocated room for the pdh due to memory shortage. */ 1936 dev->stats.rx_dropped++; 1937 } else { 1938 skb_trim(ptr->skb, pkt_len); /* Shorten it */ 1939 ptr->skb->protocol = 1940 eth_type_trans(ptr->skb, dev); 1941 1942 netif_rx(ptr->skb); /* Up and away... */ 1943 1944 dev->stats.rx_packets++; 1945 dev->stats.rx_bytes += pkt_len; 1946 } 1947 1948 switch (header & 0x00070000) { 1949 case (HP100_MULTI_ADDR_HASH << 16): 1950 case (HP100_MULTI_ADDR_NO_HASH << 16): 1951 dev->stats.multicast++; 1952 break; 1953 } 1954 } else { 1955#ifdef HP100_DEBUG 1956 printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); 1957#endif 1958 if (ptr->skb != NULL) 1959 dev_kfree_skb_any(ptr->skb); 1960 dev->stats.rx_errors++; 1961 } 1962 1963 lp->rxrhead = lp->rxrhead->next; 1964 1965 /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ 1966 if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { 1967 /* No space for skb, header can still be received. */ 1968#ifdef HP100_DEBUG 1969 printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); 1970#endif 1971 return; 1972 } else { /* successfully allocated new PDL - put it in ringlist at tail. */ 1973 hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); 1974 lp->rxrtail = lp->rxrtail->next; 1975 } 1976 1977 } 1978} 1979 1980/* 1981 * statistics 1982 */ 1983static struct net_device_stats *hp100_get_stats(struct net_device *dev) 1984{ 1985 unsigned long flags; 1986 int ioaddr = dev->base_addr; 1987 struct hp100_private *lp = netdev_priv(dev); 1988 1989#ifdef HP100_DEBUG_B 1990 hp100_outw(0x4215, TRACE); 1991#endif 1992 1993 spin_lock_irqsave(&lp->lock, flags); 1994 hp100_ints_off(); /* Useful ? Jean II */ 1995 hp100_update_stats(dev); 1996 hp100_ints_on(); 1997 spin_unlock_irqrestore(&lp->lock, flags); 1998 return &(dev->stats); 1999} 2000 2001static void hp100_update_stats(struct net_device *dev) 2002{ 2003 int ioaddr = dev->base_addr; 2004 u_short val; 2005 2006#ifdef HP100_DEBUG_B 2007 hp100_outw(0x4216, TRACE); 2008 printk("hp100: %s: update-stats\n", dev->name); 2009#endif 2010 2011 /* Note: Statistics counters clear when read. */ 2012 hp100_page(MAC_CTRL); 2013 val = hp100_inw(DROPPED) & 0x0fff; 2014 dev->stats.rx_errors += val; 2015 dev->stats.rx_over_errors += val; 2016 val = hp100_inb(CRC); 2017 dev->stats.rx_errors += val; 2018 dev->stats.rx_crc_errors += val; 2019 val = hp100_inb(ABORT); 2020 dev->stats.tx_errors += val; 2021 dev->stats.tx_aborted_errors += val; 2022 hp100_page(PERFORMANCE); 2023} 2024 2025static void hp100_misc_interrupt(struct net_device *dev) 2026{ 2027#ifdef HP100_DEBUG_B 2028 int ioaddr = dev->base_addr; 2029#endif 2030 2031#ifdef HP100_DEBUG_B 2032 int ioaddr = dev->base_addr; 2033 hp100_outw(0x4216, TRACE); 2034 printk("hp100: %s: misc_interrupt\n", dev->name); 2035#endif 2036 2037 /* Note: Statistics counters clear when read. */ 2038 dev->stats.rx_errors++; 2039 dev->stats.tx_errors++; 2040} 2041 2042static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) 2043{ 2044 unsigned long flags; 2045 2046#ifdef HP100_DEBUG_B 2047 hp100_outw(0x4217, TRACE); 2048 printk("hp100: %s: clear_stats\n", dev->name); 2049#endif 2050 2051 spin_lock_irqsave(&lp->lock, flags); 2052 hp100_page(MAC_CTRL); /* get all statistics bytes */ 2053 hp100_inw(DROPPED); 2054 hp100_inb(CRC); 2055 hp100_inb(ABORT); 2056 hp100_page(PERFORMANCE); 2057 spin_unlock_irqrestore(&lp->lock, flags); 2058} 2059 2060 2061/* 2062 * multicast setup 2063 */ 2064 2065/* 2066 * Set or clear the multicast filter for this adapter. 2067 */ 2068 2069static void hp100_set_multicast_list(struct net_device *dev) 2070{ 2071 unsigned long flags; 2072 int ioaddr = dev->base_addr; 2073 struct hp100_private *lp = netdev_priv(dev); 2074 2075#ifdef HP100_DEBUG_B 2076 hp100_outw(0x4218, TRACE); 2077 printk("hp100: %s: set_mc_list\n", dev->name); 2078#endif 2079 2080 spin_lock_irqsave(&lp->lock, flags); 2081 hp100_ints_off(); 2082 hp100_page(MAC_CTRL); 2083 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ 2084 2085 if (dev->flags & IFF_PROMISC) { 2086 lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ 2087 lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ 2088 memset(&lp->hash_bytes, 0xff, 8); 2089 } else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI)) { 2090 lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ 2091 lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ 2092#ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ 2093 if (dev->flags & IFF_ALLMULTI) { 2094 /* set hash filter to receive all multicast packets */ 2095 memset(&lp->hash_bytes, 0xff, 8); 2096 } else { 2097 int i, idx; 2098 u_char *addrs; 2099 struct netdev_hw_addr *ha; 2100 2101 memset(&lp->hash_bytes, 0x00, 8); 2102#ifdef HP100_DEBUG 2103 printk("hp100: %s: computing hash filter - mc_count = %i\n", 2104 dev->name, netdev_mc_count(dev)); 2105#endif 2106 netdev_for_each_mc_addr(ha, dev) { 2107 addrs = ha->addr; 2108#ifdef HP100_DEBUG 2109 printk("hp100: %s: multicast = %pM, ", 2110 dev->name, addrs); 2111#endif 2112 for (i = idx = 0; i < 6; i++) { 2113 idx ^= *addrs++ & 0x3f; 2114 printk(":%02x:", idx); 2115 } 2116#ifdef HP100_DEBUG 2117 printk("idx = %i\n", idx); 2118#endif 2119 lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); 2120 } 2121 } 2122#else 2123 memset(&lp->hash_bytes, 0xff, 8); 2124#endif 2125 } else { 2126 lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ 2127 lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ 2128 memset(&lp->hash_bytes, 0x00, 8); 2129 } 2130 2131 if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || 2132 (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { 2133 int i; 2134 2135 hp100_outb(lp->mac2_mode, MAC_CFG_2); 2136 hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ 2137 hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ 2138 2139 hp100_page(MAC_ADDRESS); 2140 for (i = 0; i < 8; i++) 2141 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); 2142#ifdef HP100_DEBUG 2143 printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 2144 dev->name, lp->mac1_mode, lp->mac2_mode, 2145 lp->hash_bytes[0], lp->hash_bytes[1], 2146 lp->hash_bytes[2], lp->hash_bytes[3], 2147 lp->hash_bytes[4], lp->hash_bytes[5], 2148 lp->hash_bytes[6], lp->hash_bytes[7]); 2149#endif 2150 2151 if (lp->lan_type == HP100_LAN_100) { 2152#ifdef HP100_DEBUG 2153 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); 2154#endif 2155 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ 2156 } 2157 } else { 2158 int i; 2159 u_char old_hash_bytes[8]; 2160 2161 hp100_page(MAC_ADDRESS); 2162 for (i = 0; i < 8; i++) 2163 old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); 2164 if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { 2165 for (i = 0; i < 8; i++) 2166 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); 2167#ifdef HP100_DEBUG 2168 printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 2169 dev->name, lp->hash_bytes[0], 2170 lp->hash_bytes[1], lp->hash_bytes[2], 2171 lp->hash_bytes[3], lp->hash_bytes[4], 2172 lp->hash_bytes[5], lp->hash_bytes[6], 2173 lp->hash_bytes[7]); 2174#endif 2175 2176 if (lp->lan_type == HP100_LAN_100) { 2177#ifdef HP100_DEBUG 2178 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); 2179#endif 2180 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ 2181 } 2182 } 2183 } 2184 2185 hp100_page(MAC_CTRL); 2186 hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ 2187 HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ 2188 2189 hp100_page(PERFORMANCE); 2190 hp100_ints_on(); 2191 spin_unlock_irqrestore(&lp->lock, flags); 2192} 2193 2194/* 2195 * hardware interrupt handling 2196 */ 2197 2198static irqreturn_t hp100_interrupt(int irq, void *dev_id) 2199{ 2200 struct net_device *dev = (struct net_device *) dev_id; 2201 struct hp100_private *lp = netdev_priv(dev); 2202 2203 int ioaddr; 2204 u_int val; 2205 2206 if (dev == NULL) 2207 return IRQ_NONE; 2208 ioaddr = dev->base_addr; 2209 2210 spin_lock(&lp->lock); 2211 2212 hp100_ints_off(); 2213 2214#ifdef HP100_DEBUG_B 2215 hp100_outw(0x4219, TRACE); 2216#endif 2217 2218 /* hp100_page( PERFORMANCE ); */ 2219 val = hp100_inw(IRQ_STATUS); 2220#ifdef HP100_DEBUG_IRQ 2221 printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", 2222 dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), 2223 hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); 2224#endif 2225 2226 if (val == 0) { /* might be a shared interrupt */ 2227 spin_unlock(&lp->lock); 2228 hp100_ints_on(); 2229 return IRQ_NONE; 2230 } 2231 /* We're only interested in those interrupts we really enabled. */ 2232 /* val &= hp100_inw( IRQ_MASK ); */ 2233 2234 /* 2235 * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL 2236 * is considered executed whenever the RX_PDL data structure is no longer 2237 * needed. 2238 */ 2239 if (val & HP100_RX_PDL_FILL_COMPL) { 2240 if (lp->mode == 1) 2241 hp100_rx_bm(dev); 2242 else { 2243 printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); 2244 } 2245 } 2246 2247 /* 2248 * The RX_PACKET interrupt is set, when the receive packet counter is 2249 * non zero. We use this interrupt for receiving in slave mode. In 2250 * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill 2251 * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then 2252 * we somehow have missed a rx_pdl_fill_compl interrupt. 2253 */ 2254 2255 if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ 2256 if (lp->mode != 1) /* non busmaster */ 2257 hp100_rx(dev); 2258 else if (!(val & HP100_RX_PDL_FILL_COMPL)) { 2259 /* Shouldn't happen - maybe we missed a RX_PDL_FILL Interrupt? */ 2260 hp100_rx_bm(dev); 2261 } 2262 } 2263 2264 /* 2265 * Ack. that we have noticed the interrupt and thereby allow next one. 2266 * Note that this is now done after the slave rx function, since first 2267 * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt 2268 * on the J2573. 2269 */ 2270 hp100_outw(val, IRQ_STATUS); 2271 2272 /* 2273 * RX_ERROR is set when a packet is dropped due to no memory resources on 2274 * the card or when a RCV_ERR occurs. 2275 * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists 2276 * only in the 802.3 MAC and happens when 16 collisions occur during a TX 2277 */ 2278 if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { 2279#ifdef HP100_DEBUG_IRQ 2280 printk("hp100: %s: TX/RX Error IRQ\n", dev->name); 2281#endif 2282 hp100_update_stats(dev); 2283 if (lp->mode == 1) { 2284 hp100_rxfill(dev); 2285 hp100_clean_txring(dev); 2286 } 2287 } 2288 2289 /* 2290 * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. 2291 */ 2292 if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) 2293 hp100_rxfill(dev); 2294 2295 /* 2296 * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire 2297 * is completed 2298 */ 2299 if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) 2300 hp100_clean_txring(dev); 2301 2302 /* 2303 * MISC_ERROR is set when either the LAN link goes down or a detected 2304 * bus error occurs. 2305 */ 2306 if (val & HP100_MISC_ERROR) { /* New for J2585B */ 2307#ifdef HP100_DEBUG_IRQ 2308 printk 2309 ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", 2310 dev->name); 2311#endif 2312 if (lp->mode == 1) { 2313 hp100_clean_txring(dev); 2314 hp100_rxfill(dev); 2315 } 2316 hp100_misc_interrupt(dev); 2317 } 2318 2319 spin_unlock(&lp->lock); 2320 hp100_ints_on(); 2321 return IRQ_HANDLED; 2322} 2323 2324/* 2325 * some misc functions 2326 */ 2327 2328static void hp100_start_interface(struct net_device *dev) 2329{ 2330 unsigned long flags; 2331 int ioaddr = dev->base_addr; 2332 struct hp100_private *lp = netdev_priv(dev); 2333 2334#ifdef HP100_DEBUG_B 2335 hp100_outw(0x4220, TRACE); 2336 printk("hp100: %s: hp100_start_interface\n", dev->name); 2337#endif 2338 2339 spin_lock_irqsave(&lp->lock, flags); 2340 2341 /* Ensure the adapter does not want to request an interrupt when */ 2342 /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ 2343 hp100_page(PERFORMANCE); 2344 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 2345 hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ 2346 hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, 2347 OPTION_LSW); 2348 /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ 2349 hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); 2350 2351 if (lp->mode == 1) { 2352 /* Make sure BM bit is set... */ 2353 hp100_page(HW_MAP); 2354 hp100_orb(HP100_BM_MASTER, BM); 2355 hp100_rxfill(dev); 2356 } else if (lp->mode == 2) { 2357 /* Enable memory mapping. Note: Don't do this when busmaster. */ 2358 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); 2359 } 2360 2361 hp100_page(PERFORMANCE); 2362 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 2363 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 2364 2365 /* enable a few interrupts: */ 2366 if (lp->mode == 1) { /* busmaster mode */ 2367 hp100_outw(HP100_RX_PDL_FILL_COMPL | 2368 HP100_RX_PDA_ZERO | HP100_RX_ERROR | 2369 /* HP100_RX_PACKET | */ 2370 /* HP100_RX_EARLY_INT | */ HP100_SET_HB | 2371 /* HP100_TX_PDA_ZERO | */ 2372 HP100_TX_COMPLETE | 2373 /* HP100_MISC_ERROR | */ 2374 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); 2375 } else { 2376 hp100_outw(HP100_RX_PACKET | 2377 HP100_RX_ERROR | HP100_SET_HB | 2378 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); 2379 } 2380 2381 /* Note : before hp100_set_multicast_list(), because it will play with 2382 * spinlock itself... Jean II */ 2383 spin_unlock_irqrestore(&lp->lock, flags); 2384 2385 /* Enable MAC Tx and RX, set MAC modes, ... */ 2386 hp100_set_multicast_list(dev); 2387} 2388 2389static void hp100_stop_interface(struct net_device *dev) 2390{ 2391 struct hp100_private *lp = netdev_priv(dev); 2392 int ioaddr = dev->base_addr; 2393 u_int val; 2394 2395#ifdef HP100_DEBUG_B 2396 printk("hp100: %s: hp100_stop_interface\n", dev->name); 2397 hp100_outw(0x4221, TRACE); 2398#endif 2399 2400 if (lp->mode == 1) 2401 hp100_BM_shutdown(dev); 2402 else { 2403 /* Note: MMAP_DIS will be reenabled by start_interface */ 2404 hp100_outw(HP100_INT_EN | HP100_RESET_LB | 2405 HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, 2406 OPTION_LSW); 2407 val = hp100_inw(OPTION_LSW); 2408 2409 hp100_page(MAC_CTRL); 2410 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); 2411 2412 if (!(val & HP100_HW_RST)) 2413 return; /* If reset, imm. return ... */ 2414 /* ... else: busy wait until idle */ 2415 for (val = 0; val < 6000; val++) 2416 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { 2417 hp100_page(PERFORMANCE); 2418 return; 2419 } 2420 printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); 2421 hp100_page(PERFORMANCE); 2422 } 2423} 2424 2425static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) 2426{ 2427 int i; 2428 int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; 2429 2430#ifdef HP100_DEBUG_B 2431 hp100_outw(0x4222, TRACE); 2432#endif 2433 2434 hp100_page(EEPROM_CTRL); 2435 hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); 2436 hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); 2437 for (i = 0; i < 10000; i++) 2438 if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) 2439 return; 2440 printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); 2441} 2442 2443/* Sense connection status. 2444 * return values: LAN_10 - Connected to 10Mbit/s network 2445 * LAN_100 - Connected to 100Mbit/s network 2446 * LAN_ERR - not connected or 100Mbit/s Hub down 2447 */ 2448static int hp100_sense_lan(struct net_device *dev) 2449{ 2450 int ioaddr = dev->base_addr; 2451 u_short val_VG, val_10; 2452 struct hp100_private *lp = netdev_priv(dev); 2453 2454#ifdef HP100_DEBUG_B 2455 hp100_outw(0x4223, TRACE); 2456#endif 2457 2458 hp100_page(MAC_CTRL); 2459 val_10 = hp100_inb(10_LAN_CFG_1); 2460 val_VG = hp100_inb(VG_LAN_CFG_1); 2461 hp100_page(PERFORMANCE); 2462#ifdef HP100_DEBUG 2463 printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", 2464 dev->name, val_VG, val_10); 2465#endif 2466 2467 if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ 2468 return HP100_LAN_10; 2469 2470 if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ 2471 /* 2472 * This can be overriden by dos utility, so if this has no effect, 2473 * perhaps you need to download that utility from HP and set card 2474 * back to "auto detect". 2475 */ 2476 val_10 |= HP100_AUI_SEL | HP100_LOW_TH; 2477 hp100_page(MAC_CTRL); 2478 hp100_outb(val_10, 10_LAN_CFG_1); 2479 hp100_page(PERFORMANCE); 2480 return HP100_LAN_COAX; 2481 } 2482 2483 /* Those cards don't have a 100 Mbit connector */ 2484 if ( !strcmp(lp->id, "HWP1920") || 2485 (lp->pci_dev && 2486 lp->pci_dev->vendor == PCI_VENDOR_ID && 2487 (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || 2488 lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) 2489 return HP100_LAN_ERR; 2490 2491 if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ 2492 return HP100_LAN_100; 2493 return HP100_LAN_ERR; 2494} 2495 2496static int hp100_down_vg_link(struct net_device *dev) 2497{ 2498 struct hp100_private *lp = netdev_priv(dev); 2499 int ioaddr = dev->base_addr; 2500 unsigned long time; 2501 long savelan, newlan; 2502 2503#ifdef HP100_DEBUG_B 2504 hp100_outw(0x4224, TRACE); 2505 printk("hp100: %s: down_vg_link\n", dev->name); 2506#endif 2507 2508 hp100_page(MAC_CTRL); 2509 time = jiffies + (HZ / 4); 2510 do { 2511 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) 2512 break; 2513 if (!in_interrupt()) 2514 schedule_timeout_interruptible(1); 2515 } while (time_after(time, jiffies)); 2516 2517 if (time_after_eq(jiffies, time)) /* no signal->no logout */ 2518 return 0; 2519 2520 /* Drop the VG Link by clearing the link up cmd and load addr. */ 2521 2522 hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); 2523 hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); 2524 2525 /* Conditionally stall for >250ms on Link-Up Status (to go down) */ 2526 time = jiffies + (HZ / 2); 2527 do { 2528 if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) 2529 break; 2530 if (!in_interrupt()) 2531 schedule_timeout_interruptible(1); 2532 } while (time_after(time, jiffies)); 2533 2534#ifdef HP100_DEBUG 2535 if (time_after_eq(jiffies, time)) 2536 printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); 2537#endif 2538 2539 /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ 2540 /* logout under traffic (even though all the status bits are cleared), */ 2541 /* do this workaround to get the Rev 1 MAC in its idle state */ 2542 if (lp->chip == HP100_CHIPID_LASSEN) { 2543 /* Reset VG MAC to insure it leaves the logoff state even if */ 2544 /* the Hub is still emitting tones */ 2545 hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); 2546 udelay(1500); /* wait for >1ms */ 2547 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ 2548 udelay(1500); 2549 } 2550 2551 /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ 2552 /* to get the VG mac to full reset. This is not req.d with later chips */ 2553 /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ 2554 /* selected again! This will be left to the connect hub function to */ 2555 /* perform if desired. */ 2556 if (lp->chip == HP100_CHIPID_LASSEN) { 2557 /* Have to write to 10 and 100VG control registers simultaneously */ 2558 savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ 2559 newlan &= ~(HP100_VG_SEL << 16); 2560 newlan |= (HP100_DOT3_MAC) << 8; 2561 hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ 2562 hp100_outl(newlan, 10_LAN_CFG_1); 2563 2564 /* Conditionally stall for 5sec on VG selected. */ 2565 time = jiffies + (HZ * 5); 2566 do { 2567 if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) 2568 break; 2569 if (!in_interrupt()) 2570 schedule_timeout_interruptible(1); 2571 } while (time_after(time, jiffies)); 2572 2573 hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ 2574 hp100_outl(savelan, 10_LAN_CFG_1); 2575 } 2576 2577 time = jiffies + (3 * HZ); /* Timeout 3s */ 2578 do { 2579 if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) 2580 break; 2581 if (!in_interrupt()) 2582 schedule_timeout_interruptible(1); 2583 } while (time_after(time, jiffies)); 2584 2585 if (time_before_eq(time, jiffies)) { 2586#ifdef HP100_DEBUG 2587 printk("hp100: %s: down_vg_link: timeout\n", dev->name); 2588#endif 2589 return -EIO; 2590 } 2591 2592 time = jiffies + (2 * HZ); /* This seems to take a while.... */ 2593 do { 2594 if (!in_interrupt()) 2595 schedule_timeout_interruptible(1); 2596 } while (time_after(time, jiffies)); 2597 2598 return 0; 2599} 2600 2601static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) 2602{ 2603 int ioaddr = dev->base_addr; 2604 struct hp100_private *lp = netdev_priv(dev); 2605 u_short val = 0; 2606 unsigned long time; 2607 int startst; 2608 2609#ifdef HP100_DEBUG_B 2610 hp100_outw(0x4225, TRACE); 2611 printk("hp100: %s: login_to_vg_hub\n", dev->name); 2612#endif 2613 2614 /* Initiate a login sequence iff VG MAC is enabled and either Load Address 2615 * bit is zero or the force relogin flag is set (e.g. due to MAC address or 2616 * promiscuous mode change) 2617 */ 2618 hp100_page(MAC_CTRL); 2619 startst = hp100_inb(VG_LAN_CFG_1); 2620 if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { 2621#ifdef HP100_DEBUG_TRAINING 2622 printk("hp100: %s: Start training\n", dev->name); 2623#endif 2624 2625 /* Ensure VG Reset bit is 1 (i.e., do not reset) */ 2626 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); 2627 2628 /* If Lassen AND auto-select-mode AND VG tones were sensed on */ 2629 /* entry then temporarily put them into force 100Mbit mode */ 2630 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) 2631 hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); 2632 2633 /* Drop the VG link by zeroing Link Up Command and Load Address */ 2634 hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); 2635 2636#ifdef HP100_DEBUG_TRAINING 2637 printk("hp100: %s: Bring down the link\n", dev->name); 2638#endif 2639 2640 /* Wait for link to drop */ 2641 time = jiffies + (HZ / 10); 2642 do { 2643 if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) 2644 break; 2645 if (!in_interrupt()) 2646 schedule_timeout_interruptible(1); 2647 } while (time_after(time, jiffies)); 2648 2649 /* Start an addressed training and optionally request promiscuous port */ 2650 if ((dev->flags) & IFF_PROMISC) { 2651 hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); 2652 if (lp->chip == HP100_CHIPID_LASSEN) 2653 hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); 2654 } else { 2655 hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); 2656 /* For ETR parts we need to reset the prom. bit in the training 2657 * register, otherwise promiscious mode won't be disabled. 2658 */ 2659 if (lp->chip == HP100_CHIPID_LASSEN) { 2660 hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); 2661 } 2662 } 2663 2664 /* With ETR parts, frame format request bits can be set. */ 2665 if (lp->chip == HP100_CHIPID_LASSEN) 2666 hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); 2667 2668 hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); 2669 2670 /* Note: Next wait could be omitted for Hood and earlier chips under */ 2671 /* certain circumstances */ 2672 /* TODO: check if hood/earlier and skip wait. */ 2673 2674 /* Wait for either short timeout for VG tones or long for login */ 2675 /* Wait for the card hardware to signalise link cable status ok... */ 2676 hp100_page(MAC_CTRL); 2677 time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ 2678 do { 2679 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) 2680 break; 2681 if (!in_interrupt()) 2682 schedule_timeout_interruptible(1); 2683 } while (time_before(jiffies, time)); 2684 2685 if (time_after_eq(jiffies, time)) { 2686#ifdef HP100_DEBUG_TRAINING 2687 printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); 2688#endif 2689 } else { 2690#ifdef HP100_DEBUG_TRAINING 2691 printk 2692 ("hp100: %s: HUB tones detected. Trying to train.\n", 2693 dev->name); 2694#endif 2695 2696 time = jiffies + (2 * HZ); /* again a timeout */ 2697 do { 2698 val = hp100_inb(VG_LAN_CFG_1); 2699 if ((val & (HP100_LINK_UP_ST))) { 2700#ifdef HP100_DEBUG_TRAINING 2701 printk("hp100: %s: Passed training.\n", dev->name); 2702#endif 2703 break; 2704 } 2705 if (!in_interrupt()) 2706 schedule_timeout_interruptible(1); 2707 } while (time_after(time, jiffies)); 2708 } 2709 2710 /* If LINK_UP_ST is set, then we are logged into the hub. */ 2711 if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { 2712#ifdef HP100_DEBUG_TRAINING 2713 printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); 2714 if (lp->chip == HP100_CHIPID_LASSEN) { 2715 val = hp100_inw(TRAIN_ALLOW); 2716 printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", 2717 dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); 2718 printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); 2719 printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); 2720 } 2721#endif 2722 } else { 2723 /* If LINK_UP_ST is not set, login was not successful */ 2724 printk("hp100: %s: Problem logging into the HUB.\n", dev->name); 2725 if (lp->chip == HP100_CHIPID_LASSEN) { 2726 /* Check allowed Register to find out why there is a problem. */ 2727 val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ 2728#ifdef HP100_DEBUG_TRAINING 2729 printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); 2730#endif 2731 if (val & HP100_MALLOW_ACCDENIED) 2732 printk("hp100: %s: HUB access denied.\n", dev->name); 2733 if (val & HP100_MALLOW_CONFIGURE) 2734 printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); 2735 if (val & HP100_MALLOW_DUPADDR) 2736 printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); 2737 } 2738 } 2739 2740 /* If we have put the chip into forced 100 Mbit mode earlier, go back */ 2741 /* to auto-select mode */ 2742 2743 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { 2744 hp100_page(MAC_CTRL); 2745 hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); 2746 } 2747 2748 val = hp100_inb(VG_LAN_CFG_1); 2749 2750 /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ 2751 hp100_page(PERFORMANCE); 2752 hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); 2753 2754 if (val & HP100_LINK_UP_ST) 2755 return 0; /* login was ok */ 2756 else { 2757 printk("hp100: %s: Training failed.\n", dev->name); 2758 hp100_down_vg_link(dev); 2759 return -EIO; 2760 } 2761 } 2762 /* no forced relogin & already link there->no training. */ 2763 return -EIO; 2764} 2765 2766static void hp100_cascade_reset(struct net_device *dev, u_short enable) 2767{ 2768 int ioaddr = dev->base_addr; 2769 struct hp100_private *lp = netdev_priv(dev); 2770 2771#ifdef HP100_DEBUG_B 2772 hp100_outw(0x4226, TRACE); 2773 printk("hp100: %s: cascade_reset\n", dev->name); 2774#endif 2775 2776 if (enable) { 2777 hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); 2778 if (lp->chip == HP100_CHIPID_LASSEN) { 2779 /* Lassen requires a PCI transmit fifo reset */ 2780 hp100_page(HW_MAP); 2781 hp100_andb(~HP100_PCI_RESET, PCICTRL2); 2782 hp100_orb(HP100_PCI_RESET, PCICTRL2); 2783 /* Wait for min. 300 ns */ 2784 /* we can't use jiffies here, because it may be */ 2785 /* that we have disabled the timer... */ 2786 udelay(400); 2787 hp100_andb(~HP100_PCI_RESET, PCICTRL2); 2788 hp100_page(PERFORMANCE); 2789 } 2790 } else { /* bring out of reset */ 2791 hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); 2792 udelay(400); 2793 hp100_page(PERFORMANCE); 2794 } 2795} 2796 2797#ifdef HP100_DEBUG 2798void hp100_RegisterDump(struct net_device *dev) 2799{ 2800 int ioaddr = dev->base_addr; 2801 int Page; 2802 int Register; 2803 2804 /* Dump common registers */ 2805 printk("hp100: %s: Cascade Register Dump\n", dev->name); 2806 printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); 2807 printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); 2808 printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); 2809 printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); 2810 2811 /* Dump paged registers */ 2812 for (Page = 0; Page < 8; Page++) { 2813 /* Dump registers */ 2814 printk("page: 0x%.2x\n", Page); 2815 outw(Page, ioaddr + 0x02); 2816 for (Register = 0x8; Register < 0x22; Register += 2) { 2817 /* Display Register contents except data port */ 2818 if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { 2819 printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); 2820 } 2821 } 2822 } 2823 hp100_page(PERFORMANCE); 2824} 2825#endif 2826 2827 2828static void cleanup_dev(struct net_device *d) 2829{ 2830 struct hp100_private *p = netdev_priv(d); 2831 2832 unregister_netdev(d); 2833 release_region(d->base_addr, HP100_REGION_SIZE); 2834 2835 if (p->mode == 1) /* busmaster */ 2836 pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, 2837 p->page_vaddr_algn, 2838 virt_to_whatever(d, p->page_vaddr_algn)); 2839 if (p->mem_ptr_virt) 2840 iounmap(p->mem_ptr_virt); 2841 2842 free_netdev(d); 2843} 2844 2845#ifdef CONFIG_EISA 2846static int __init hp100_eisa_probe (struct device *gendev) 2847{ 2848 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); 2849 struct eisa_device *edev = to_eisa_device(gendev); 2850 int err; 2851 2852 if (!dev) 2853 return -ENOMEM; 2854 2855 SET_NETDEV_DEV(dev, &edev->dev); 2856 2857 err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); 2858 if (err) 2859 goto out1; 2860 2861#ifdef HP100_DEBUG 2862 printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, 2863 dev->base_addr); 2864#endif 2865 dev_set_drvdata(gendev, dev); 2866 return 0; 2867 out1: 2868 free_netdev(dev); 2869 return err; 2870} 2871 2872static int hp100_eisa_remove(struct device *gendev) 2873{ 2874 struct net_device *dev = dev_get_drvdata(gendev); 2875 cleanup_dev(dev); 2876 return 0; 2877} 2878 2879static struct eisa_driver hp100_eisa_driver = { 2880 .id_table = hp100_eisa_tbl, 2881 .driver = { 2882 .name = "hp100", 2883 .probe = hp100_eisa_probe, 2884 .remove = hp100_eisa_remove, 2885 } 2886}; 2887#endif 2888 2889#ifdef CONFIG_PCI 2890static int hp100_pci_probe(struct pci_dev *pdev, 2891 const struct pci_device_id *ent) 2892{ 2893 struct net_device *dev; 2894 int ioaddr; 2895 u_short pci_command; 2896 int err; 2897 2898 if (pci_enable_device(pdev)) 2899 return -ENODEV; 2900 2901 dev = alloc_etherdev(sizeof(struct hp100_private)); 2902 if (!dev) { 2903 err = -ENOMEM; 2904 goto out0; 2905 } 2906 2907 SET_NETDEV_DEV(dev, &pdev->dev); 2908 2909 pci_read_config_word(pdev, PCI_COMMAND, &pci_command); 2910 if (!(pci_command & PCI_COMMAND_IO)) { 2911#ifdef HP100_DEBUG 2912 printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); 2913#endif 2914 pci_command |= PCI_COMMAND_IO; 2915 pci_write_config_word(pdev, PCI_COMMAND, pci_command); 2916 } 2917 2918 if (!(pci_command & PCI_COMMAND_MASTER)) { 2919#ifdef HP100_DEBUG 2920 printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); 2921#endif 2922 pci_command |= PCI_COMMAND_MASTER; 2923 pci_write_config_word(pdev, PCI_COMMAND, pci_command); 2924 } 2925 2926 ioaddr = pci_resource_start(pdev, 0); 2927 err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); 2928 if (err) 2929 goto out1; 2930 2931#ifdef HP100_DEBUG 2932 printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); 2933#endif 2934 pci_set_drvdata(pdev, dev); 2935 return 0; 2936 out1: 2937 free_netdev(dev); 2938 out0: 2939 pci_disable_device(pdev); 2940 return err; 2941} 2942 2943static void hp100_pci_remove(struct pci_dev *pdev) 2944{ 2945 struct net_device *dev = pci_get_drvdata(pdev); 2946 2947 cleanup_dev(dev); 2948 pci_disable_device(pdev); 2949} 2950 2951 2952static struct pci_driver hp100_pci_driver = { 2953 .name = "hp100", 2954 .id_table = hp100_pci_tbl, 2955 .probe = hp100_pci_probe, 2956 .remove = hp100_pci_remove, 2957}; 2958#endif 2959 2960/* 2961 * module section 2962 */ 2963 2964MODULE_LICENSE("GPL"); 2965MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, " 2966 "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); 2967MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); 2968 2969/* 2970 * Note: to register three isa devices, use: 2971 * option hp100 hp100_port=0,0,0 2972 * to register one card at io 0x280 as eth239, use: 2973 * option hp100 hp100_port=0x280 2974 */ 2975#if defined(MODULE) && defined(CONFIG_ISA) 2976#define HP100_DEVICES 5 2977/* Parameters set by insmod */ 2978static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; 2979module_param_array(hp100_port, int, NULL, 0); 2980 2981/* List of devices */ 2982static struct net_device *hp100_devlist[HP100_DEVICES]; 2983 2984static int __init hp100_isa_init(void) 2985{ 2986 struct net_device *dev; 2987 int i, err, cards = 0; 2988 2989 /* Don't autoprobe ISA bus */ 2990 if (hp100_port[0] == 0) 2991 return -ENODEV; 2992 2993 /* Loop on all possible base addresses */ 2994 for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { 2995 dev = alloc_etherdev(sizeof(struct hp100_private)); 2996 if (!dev) { 2997 while (cards > 0) 2998 cleanup_dev(hp100_devlist[--cards]); 2999 3000 return -ENOMEM; 3001 } 3002 3003 err = hp100_isa_probe(dev, hp100_port[i]); 3004 if (!err) 3005 hp100_devlist[cards++] = dev; 3006 else 3007 free_netdev(dev); 3008 } 3009 3010 return cards > 0 ? 0 : -ENODEV; 3011} 3012 3013static void hp100_isa_cleanup(void) 3014{ 3015 int i; 3016 3017 for (i = 0; i < HP100_DEVICES; i++) { 3018 struct net_device *dev = hp100_devlist[i]; 3019 if (dev) 3020 cleanup_dev(dev); 3021 } 3022} 3023#else 3024#define hp100_isa_init() (0) 3025#define hp100_isa_cleanup() do { } while(0) 3026#endif 3027 3028static int __init hp100_module_init(void) 3029{ 3030 int err; 3031 3032 err = hp100_isa_init(); 3033 if (err && err != -ENODEV) 3034 goto out; 3035#ifdef CONFIG_EISA 3036 err = eisa_driver_register(&hp100_eisa_driver); 3037 if (err && err != -ENODEV) 3038 goto out2; 3039#endif 3040#ifdef CONFIG_PCI 3041 err = pci_register_driver(&hp100_pci_driver); 3042 if (err && err != -ENODEV) 3043 goto out3; 3044#endif 3045 out: 3046 return err; 3047 out3: 3048#ifdef CONFIG_EISA 3049 eisa_driver_unregister (&hp100_eisa_driver); 3050 out2: 3051#endif 3052 hp100_isa_cleanup(); 3053 goto out; 3054} 3055 3056 3057static void __exit hp100_module_exit(void) 3058{ 3059 hp100_isa_cleanup(); 3060#ifdef CONFIG_EISA 3061 eisa_driver_unregister (&hp100_eisa_driver); 3062#endif 3063#ifdef CONFIG_PCI 3064 pci_unregister_driver (&hp100_pci_driver); 3065#endif 3066} 3067 3068module_init(hp100_module_init) 3069module_exit(hp100_module_exit) 3070