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