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 commited to adapter */ 184 int txrcommit; /* # Tx PDLs commited 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_multicast_list = 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_multicast_list = 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 */ 531 532 533 /* hp100_mode value maybe used in future by another card */ 534 local_mode = hp100_mode; 535 if (local_mode < 1 || local_mode > 4) 536 local_mode = 1; /* default */ 537#ifdef HP100_DEBUG 538 printk("hp100: %s: original LSW = 0x%x\n", dev->name, 539 hp100_inw(OPTION_LSW)); 540#endif 541 542 if (local_mode == 3) { 543 hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); 544 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 545 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); 546 printk("hp100: IO mapped mode forced.\n"); 547 } else if (local_mode == 2) { 548 hp100_outw(HP100_MEM_EN | HP100_SET_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: Shared memory mode requested.\n"); 552 } else if (local_mode == 4) { 553 if (chip == HP100_CHIPID_LASSEN) { 554 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); 555 hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); 556 printk("hp100: Busmaster mode requested.\n"); 557 } 558 local_mode = 1; 559 } 560 561 if (local_mode == 1) { /* default behaviour */ 562 lsw = hp100_inw(OPTION_LSW); 563 564 if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && 565 (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { 566#ifdef HP100_DEBUG 567 printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); 568#endif 569 local_mode = 3; 570 } else if (chip == HP100_CHIPID_LASSEN && 571 (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { 572 /* Conversion to new PCI API : 573 * I don't have the doc, but I assume that the card 574 * can map the full 32bit address space. 575 * Also, we can have EISA Busmaster cards (not tested), 576 * so beware !!! - Jean II */ 577 if((bus == HP100_BUS_PCI) && 578 (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)))) { 579 /* Gracefully fallback to shared memory */ 580 goto busmasterfail; 581 } 582 printk("hp100: Busmaster mode enabled.\n"); 583 hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); 584 } else { 585 busmasterfail: 586#ifdef HP100_DEBUG 587 printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); 588 printk("hp100: %s: Trying shared memory mode.\n", dev->name); 589#endif 590 /* In this case, try shared memory mode */ 591 local_mode = 2; 592 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); 593 /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ 594 } 595 } 596#ifdef HP100_DEBUG 597 printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); 598#endif 599 600 /* Check for shared memory on the card, eventually remap it */ 601 hp100_page(HW_MAP); 602 mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); 603 mem_ptr_phys = 0UL; 604 mem_ptr_virt = NULL; 605 memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); 606 virt_memory_size = 0; 607 608 /* For memory mapped or busmaster mode, we want the memory address */ 609 if (mem_mapped || (local_mode == 1)) { 610 mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); 611 mem_ptr_phys &= ~0x1fff; /* 8k alignment */ 612 613 if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { 614 printk("hp100: Can only use programmed i/o mode.\n"); 615 mem_ptr_phys = 0; 616 mem_mapped = 0; 617 local_mode = 3; /* Use programmed i/o */ 618 } 619 620 /* We do not need access to shared memory in busmaster mode */ 621 /* However in slave mode we need to remap high (>1GB) card memory */ 622 if (local_mode != 1) { /* = not busmaster */ 623 /* We try with smaller memory sizes, if ioremap fails */ 624 for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { 625 if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { 626#ifdef HP100_DEBUG 627 printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); 628#endif 629 } else { 630#ifdef HP100_DEBUG 631 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); 632#endif 633 break; 634 } 635 } 636 637 if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ 638 printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); 639 local_mode = 3; 640 virt_memory_size = 0; 641 } 642 } 643 } 644 645 if (local_mode == 3) { /* io mapped forced */ 646 mem_mapped = 0; 647 mem_ptr_phys = 0; 648 mem_ptr_virt = NULL; 649 printk("hp100: Using (slow) programmed i/o mode.\n"); 650 } 651 652 /* Initialise the "private" data structure for this card. */ 653 lp = netdev_priv(dev); 654 655 spin_lock_init(&lp->lock); 656 strlcpy(lp->id, eid, HP100_SIG_LEN); 657 lp->chip = chip; 658 lp->mode = local_mode; 659 lp->bus = bus; 660 lp->pci_dev = pci_dev; 661 lp->priority_tx = hp100_priority_tx; 662 lp->rx_ratio = hp100_rx_ratio; 663 lp->mem_ptr_phys = mem_ptr_phys; 664 lp->mem_ptr_virt = mem_ptr_virt; 665 hp100_page(ID_MAC_ADDR); 666 lp->soft_model = hp100_inb(SOFT_MODEL); 667 lp->mac1_mode = HP100_MAC1MODE3; 668 lp->mac2_mode = HP100_MAC2MODE3; 669 memset(&lp->hash_bytes, 0x00, 8); 670 671 dev->base_addr = ioaddr; 672 673 lp->memory_size = memory_size; 674 lp->virt_memory_size = virt_memory_size; 675 lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ 676 677 if (lp->mode == 1) /* busmaster */ 678 dev->netdev_ops = &hp100_bm_netdev_ops; 679 else 680 dev->netdev_ops = &hp100_netdev_ops; 681 682 /* Ask the card for which IRQ line it is configured */ 683 if (bus == HP100_BUS_PCI) { 684 dev->irq = pci_dev->irq; 685 } else { 686 hp100_page(HW_MAP); 687 dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; 688 if (dev->irq == 2) 689 dev->irq = 9; 690 } 691 692 if (lp->mode == 1) /* busmaster */ 693 dev->dma = 4; 694 695 /* Ask the card for its MAC address and store it for later use. */ 696 hp100_page(ID_MAC_ADDR); 697 for (i = uc = 0; i < 6; i++) 698 dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); 699 700 /* Reset statistics (counters) */ 701 hp100_clear_stats(lp, ioaddr); 702 703 /* If busmaster mode is wanted, a dma-capable memory area is needed for 704 * the rx and tx PDLs 705 * PCI cards can access the whole PC memory. Therefore GFP_DMA is not 706 * needed for the allocation of the memory area. 707 */ 708 709 /* TODO: We do not need this with old cards, where PDLs are stored 710 * in the cards shared memory area. But currently, busmaster has been 711 * implemented/tested only with the lassen chip anyway... */ 712 if (lp->mode == 1) { /* busmaster */ 713 dma_addr_t page_baddr; 714 /* Get physically continous memory for TX & RX PDLs */ 715 /* Conversion to new PCI API : 716 * Pages are always aligned and zeroed, no need to it ourself. 717 * Doc says should be OK for EISA bus as well - Jean II */ 718 lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr); 719 if (!lp->page_vaddr_algn) { 720 err = -ENOMEM; 721 goto out_mem_ptr; 722 } 723 lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); 724 725#ifdef HP100_DEBUG_BM 726 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); 727#endif 728 lp->rxrcommit = lp->txrcommit = 0; 729 lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); 730 lp->txrhead = lp->txrtail = &(lp->txring[0]); 731 } 732 733 /* Initialise the card. */ 734 /* (I'm not really sure if it's a good idea to do this during probing, but 735 * like this it's assured that the lan connection type can be sensed 736 * correctly) 737 */ 738 hp100_hwinit(dev); 739 740 /* Try to find out which kind of LAN the card is connected to. */ 741 lp->lan_type = hp100_sense_lan(dev); 742 743 /* Print out a message what about what we think we have probed. */ 744 printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); 745 switch (bus) { 746 case HP100_BUS_EISA: 747 printk("EISA"); 748 break; 749 case HP100_BUS_PCI: 750 printk("PCI"); 751 break; 752 default: 753 printk("ISA"); 754 break; 755 } 756 printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); 757 758 if (lp->mode == 2) { /* memory mapped */ 759 printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, 760 (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); 761 if (mem_ptr_virt) 762 printk(" (virtual base %p)", mem_ptr_virt); 763 printk(".\n"); 764 765 /* Set for info when doing ifconfig */ 766 dev->mem_start = mem_ptr_phys; 767 dev->mem_end = mem_ptr_phys + lp->memory_size; 768 } 769 770 printk("hp100: "); 771 if (lp->lan_type != HP100_LAN_ERR) 772 printk("Adapter is attached to "); 773 switch (lp->lan_type) { 774 case HP100_LAN_100: 775 printk("100Mb/s Voice Grade AnyLAN network.\n"); 776 break; 777 case HP100_LAN_10: 778 printk("10Mb/s network (10baseT).\n"); 779 break; 780 case HP100_LAN_COAX: 781 printk("10Mb/s network (coax).\n"); 782 break; 783 default: 784 printk("Warning! Link down.\n"); 785 } 786 787 err = register_netdev(dev); 788 if (err) 789 goto out3; 790 791 return 0; 792out3: 793 if (local_mode == 1) 794 pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, 795 lp->page_vaddr_algn, 796 virt_to_whatever(dev, lp->page_vaddr_algn)); 797out_mem_ptr: 798 if (mem_ptr_virt) 799 iounmap(mem_ptr_virt); 800out2: 801 release_region(ioaddr, HP100_REGION_SIZE); 802out1: 803 return err; 804} 805 806/* This procedure puts the card into a stable init state */ 807static void hp100_hwinit(struct net_device *dev) 808{ 809 int ioaddr = dev->base_addr; 810 struct hp100_private *lp = netdev_priv(dev); 811 812#ifdef HP100_DEBUG_B 813 hp100_outw(0x4202, TRACE); 814 printk("hp100: %s: hwinit\n", dev->name); 815#endif 816 817 /* Initialise the card. -------------------------------------------- */ 818 819 /* Clear all pending Ints and disable Ints */ 820 hp100_page(PERFORMANCE); 821 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 822 hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ 823 824 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 825 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); 826 827 if (lp->mode == 1) { 828 hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ 829 wait(); 830 } else { 831 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 832 hp100_cascade_reset(dev, 1); 833 hp100_page(MAC_CTRL); 834 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); 835 } 836 837 /* Initiate EEPROM reload */ 838 hp100_load_eeprom(dev, 0); 839 840 wait(); 841 842 /* Go into reset again. */ 843 hp100_cascade_reset(dev, 1); 844 845 /* Set Option Registers to a safe state */ 846 hp100_outw(HP100_DEBUG_EN | 847 HP100_RX_HDR | 848 HP100_EE_EN | 849 HP100_BM_WRITE | 850 HP100_BM_READ | HP100_RESET_HB | 851 HP100_FAKE_INT | 852 HP100_INT_EN | 853 HP100_MEM_EN | 854 HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); 855 856 hp100_outw(HP100_TRI_INT | 857 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); 858 859 hp100_outb(HP100_PRIORITY_TX | 860 HP100_ADV_NXT_PKT | 861 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); 862 863 /* TODO: Configure MMU for Ram Test. */ 864 /* TODO: Ram Test. */ 865 866 /* Re-check if adapter is still at same i/o location */ 867 /* (If the base i/o in eeprom has been changed but the */ 868 /* registers had not been changed, a reload of the eeprom */ 869 /* would move the adapter to the address stored in eeprom */ 870 871 /* TODO: Code to implement. */ 872 873 /* Until here it was code from HWdiscover procedure. */ 874 /* Next comes code from mmuinit procedure of SCO BM driver which is 875 * called from HWconfigure in the SCO driver. */ 876 877 /* Initialise MMU, eventually switch on Busmaster Mode, initialise 878 * multicast filter... 879 */ 880 hp100_mmuinit(dev); 881 882 /* We don't turn the interrupts on here - this is done by start_interface. */ 883 wait(); /* TODO: Do we really need this? */ 884 885 /* Enable Hardware (e.g. unreset) */ 886 hp100_cascade_reset(dev, 0); 887 888 /* ------- initialisation complete ----------- */ 889 890 /* Finally try to log in the Hub if there may be a VG connection. */ 891 if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) 892 hp100_login_to_vg_hub(dev, 0); /* relogin */ 893 894} 895 896 897/* 898 * mmuinit - Reinitialise Cascade MMU and MAC settings. 899 * Note: Must already be in reset and leaves card in reset. 900 */ 901static void hp100_mmuinit(struct net_device *dev) 902{ 903 int ioaddr = dev->base_addr; 904 struct hp100_private *lp = netdev_priv(dev); 905 int i; 906 907#ifdef HP100_DEBUG_B 908 hp100_outw(0x4203, TRACE); 909 printk("hp100: %s: mmuinit\n", dev->name); 910#endif 911 912#ifdef HP100_DEBUG 913 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { 914 printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); 915 return; 916 } 917#endif 918 919 /* Make sure IRQs are masked off and ack'ed. */ 920 hp100_page(PERFORMANCE); 921 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 922 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 923 924 /* 925 * Enable Hardware 926 * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En 927 * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable 928 * - Clear Priority, Advance Pkt and Xmit Cmd 929 */ 930 931 hp100_outw(HP100_DEBUG_EN | 932 HP100_RX_HDR | 933 HP100_EE_EN | HP100_RESET_HB | 934 HP100_IO_EN | 935 HP100_FAKE_INT | 936 HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 937 938 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); 939 940 if (lp->mode == 1) { /* busmaster */ 941 hp100_outw(HP100_BM_WRITE | 942 HP100_BM_READ | 943 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); 944 } else if (lp->mode == 2) { /* memory mapped */ 945 hp100_outw(HP100_BM_WRITE | 946 HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); 947 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); 948 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); 949 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 950 } else if (lp->mode == 3) { /* i/o mapped mode */ 951 hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | 952 HP100_IO_EN | HP100_SET_LB, OPTION_LSW); 953 } 954 955 hp100_page(HW_MAP); 956 hp100_outb(0, EARLYRXCFG); 957 hp100_outw(0, EARLYTXCFG); 958 959 /* 960 * Enable Bus Master mode 961 */ 962 if (lp->mode == 1) { /* busmaster */ 963 /* Experimental: Set some PCI configuration bits */ 964 hp100_page(HW_MAP); 965 hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ 966 hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ 967 968 /* PCI Bus failures should result in a Misc. Interrupt */ 969 hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); 970 971 hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); 972 hp100_page(HW_MAP); 973 /* Use Burst Mode and switch on PAGE_CK */ 974 hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); 975 if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) 976 hp100_orb(HP100_BM_PAGE_CK, BM); 977 hp100_orb(HP100_BM_MASTER, BM); 978 } else { /* not busmaster */ 979 980 hp100_page(HW_MAP); 981 hp100_andb(~HP100_BM_MASTER, BM); 982 } 983 984 /* 985 * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs 986 */ 987 hp100_page(MMU_CFG); 988 if (lp->mode == 1) { /* only needed for Busmaster */ 989 int xmit_stop, recv_stop; 990 991 if ((lp->chip == HP100_CHIPID_RAINIER) || 992 (lp->chip == HP100_CHIPID_SHASTA)) { 993 int pdl_stop; 994 995 /* 996 * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and 997 * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded 998 * to the next higher 1k boundary) bytes for the rx-pdl's 999 * Note: For non-etr chips the transmit stop register must be 1000 * programmed on a 1k boundary, i.e. bits 9:0 must be zero. 1001 */ 1002 pdl_stop = lp->memory_size; 1003 xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); 1004 recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); 1005 hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); 1006#ifdef HP100_DEBUG_BM 1007 printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); 1008#endif 1009 } else { 1010 /* ETR chip (Lassen) in busmaster mode */ 1011 xmit_stop = (lp->memory_size) - 1; 1012 recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); 1013 } 1014 1015 hp100_outw(xmit_stop >> 4, TX_MEM_STOP); 1016 hp100_outw(recv_stop >> 4, RX_MEM_STOP); 1017#ifdef HP100_DEBUG_BM 1018 printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); 1019 printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); 1020#endif 1021 } else { 1022 /* Slave modes (memory mapped and programmed io) */ 1023 hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); 1024 hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); 1025#ifdef HP100_DEBUG 1026 printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); 1027 printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); 1028#endif 1029 } 1030 1031 /* Write MAC address into page 1 */ 1032 hp100_page(MAC_ADDRESS); 1033 for (i = 0; i < 6; i++) 1034 hp100_outb(dev->dev_addr[i], MAC_ADDR + i); 1035 1036 /* Zero the multicast hash registers */ 1037 for (i = 0; i < 8; i++) 1038 hp100_outb(0x0, HASH_BYTE0 + i); 1039 1040 /* Set up MAC defaults */ 1041 hp100_page(MAC_CTRL); 1042 1043 /* Go to LAN Page and zero all filter bits */ 1044 /* Zero accept error, accept multicast, accept broadcast and accept */ 1045 /* all directed packet bits */ 1046 hp100_andb(~(HP100_RX_EN | 1047 HP100_TX_EN | 1048 HP100_ACC_ERRORED | 1049 HP100_ACC_MC | 1050 HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); 1051 1052 hp100_outb(0x00, MAC_CFG_2); 1053 1054 /* Zero the frame format bit. This works around a training bug in the */ 1055 /* new hubs. */ 1056 hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ 1057 1058 if (lp->priority_tx) 1059 hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); 1060 else 1061 hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); 1062 1063 hp100_outb(HP100_ADV_NXT_PKT | 1064 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); 1065 1066 /* If busmaster, initialize the PDLs */ 1067 if (lp->mode == 1) 1068 hp100_init_pdls(dev); 1069 1070 /* Go to performance page and initialize isr and imr registers */ 1071 hp100_page(PERFORMANCE); 1072 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 1073 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 1074} 1075 1076/* 1077 * open/close functions 1078 */ 1079 1080static int hp100_open(struct net_device *dev) 1081{ 1082 struct hp100_private *lp = netdev_priv(dev); 1083#ifdef HP100_DEBUG_B 1084 int ioaddr = dev->base_addr; 1085#endif 1086 1087#ifdef HP100_DEBUG_B 1088 hp100_outw(0x4204, TRACE); 1089 printk("hp100: %s: open\n", dev->name); 1090#endif 1091 1092 /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ 1093 if (request_irq(dev->irq, hp100_interrupt, 1094 lp->bus == HP100_BUS_PCI || lp->bus == 1095 HP100_BUS_EISA ? IRQF_SHARED : IRQF_DISABLED, 1096 "hp100", dev)) { 1097 printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); 1098 return -EAGAIN; 1099 } 1100 1101 dev->trans_start = jiffies; /* prevent tx timeout */ 1102 netif_start_queue(dev); 1103 1104 lp->lan_type = hp100_sense_lan(dev); 1105 lp->mac1_mode = HP100_MAC1MODE3; 1106 lp->mac2_mode = HP100_MAC2MODE3; 1107 memset(&lp->hash_bytes, 0x00, 8); 1108 1109 hp100_stop_interface(dev); 1110 1111 hp100_hwinit(dev); 1112 1113 hp100_start_interface(dev); /* sets mac modes, enables interrupts */ 1114 1115 return 0; 1116} 1117 1118/* The close function is called when the interface is to be brought down */ 1119static int hp100_close(struct net_device *dev) 1120{ 1121 int ioaddr = dev->base_addr; 1122 struct hp100_private *lp = netdev_priv(dev); 1123 1124#ifdef HP100_DEBUG_B 1125 hp100_outw(0x4205, TRACE); 1126 printk("hp100: %s: close\n", dev->name); 1127#endif 1128 1129 hp100_page(PERFORMANCE); 1130 hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ 1131 1132 hp100_stop_interface(dev); 1133 1134 if (lp->lan_type == HP100_LAN_100) 1135 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1136 1137 netif_stop_queue(dev); 1138 1139 free_irq(dev->irq, dev); 1140 1141#ifdef HP100_DEBUG 1142 printk("hp100: %s: close LSW = 0x%x\n", dev->name, 1143 hp100_inw(OPTION_LSW)); 1144#endif 1145 1146 return 0; 1147} 1148 1149 1150/* 1151 * Configure the PDL Rx rings and LAN 1152 */ 1153static void hp100_init_pdls(struct net_device *dev) 1154{ 1155 struct hp100_private *lp = netdev_priv(dev); 1156 hp100_ring_t *ringptr; 1157 u_int *pageptr; /* Warning : increment by 4 - Jean II */ 1158 int i; 1159 1160#ifdef HP100_DEBUG_B 1161 int ioaddr = dev->base_addr; 1162#endif 1163 1164#ifdef HP100_DEBUG_B 1165 hp100_outw(0x4206, TRACE); 1166 printk("hp100: %s: init pdls\n", dev->name); 1167#endif 1168 1169 if (!lp->page_vaddr_algn) 1170 printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); 1171 else { 1172 /* pageptr shall point into the DMA accessible memory region */ 1173 /* we use this pointer to status the upper limit of allocated */ 1174 /* memory in the allocated page. */ 1175 /* note: align the pointers to the pci cache line size */ 1176 memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ 1177 pageptr = lp->page_vaddr_algn; 1178 1179 lp->rxrcommit = 0; 1180 ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); 1181 1182 /* Initialise Rx Ring */ 1183 for (i = MAX_RX_PDL - 1; i >= 0; i--) { 1184 lp->rxring[i].next = ringptr; 1185 ringptr = &(lp->rxring[i]); 1186 pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); 1187 } 1188 1189 /* Initialise Tx Ring */ 1190 lp->txrcommit = 0; 1191 ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); 1192 for (i = MAX_TX_PDL - 1; i >= 0; i--) { 1193 lp->txring[i].next = ringptr; 1194 ringptr = &(lp->txring[i]); 1195 pageptr += hp100_init_txpdl(dev, ringptr, pageptr); 1196 } 1197 } 1198} 1199 1200 1201/* These functions "format" the entries in the pdl structure */ 1202/* They return how much memory the fragments need. */ 1203static int hp100_init_rxpdl(struct net_device *dev, 1204 register hp100_ring_t * ringptr, 1205 register u32 * pdlptr) 1206{ 1207 /* pdlptr is starting address for this pdl */ 1208 1209 if (0 != (((unsigned long) pdlptr) & 0xf)) 1210 printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", 1211 dev->name, (unsigned long) pdlptr); 1212 1213 ringptr->pdl = pdlptr + 1; 1214 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); 1215 ringptr->skb = (void *) NULL; 1216 1217 /* 1218 * Write address and length of first PDL Fragment (which is used for 1219 * storing the RX-Header 1220 * We use the 4 bytes _before_ the PDH in the pdl memory area to 1221 * store this information. (PDH is at offset 0x04) 1222 */ 1223 /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ 1224 1225 *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ 1226 *(pdlptr + 3) = 4; /* Length Frag 1 */ 1227 1228 return roundup(MAX_RX_FRAG * 2 + 2, 4); 1229} 1230 1231 1232static int hp100_init_txpdl(struct net_device *dev, 1233 register hp100_ring_t * ringptr, 1234 register u32 * pdlptr) 1235{ 1236 if (0 != (((unsigned long) pdlptr) & 0xf)) 1237 printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); 1238 1239 ringptr->pdl = pdlptr; /* +1; */ 1240 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ 1241 ringptr->skb = (void *) NULL; 1242 1243 return roundup(MAX_TX_FRAG * 2 + 2, 4); 1244} 1245 1246/* 1247 * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes 1248 * for possible odd word alignment rounding up to next dword and set PDL 1249 * address for fragment#2 1250 * Returns: 0 if unable to allocate skb_buff 1251 * 1 if successful 1252 */ 1253static int hp100_build_rx_pdl(hp100_ring_t * ringptr, 1254 struct net_device *dev) 1255{ 1256#ifdef HP100_DEBUG_B 1257 int ioaddr = dev->base_addr; 1258#endif 1259#ifdef HP100_DEBUG_BM 1260 u_int *p; 1261#endif 1262 1263#ifdef HP100_DEBUG_B 1264 hp100_outw(0x4207, TRACE); 1265 printk("hp100: %s: build rx pdl\n", dev->name); 1266#endif 1267 1268 /* Allocate skb buffer of maximum size */ 1269 /* Note: This depends on the alloc_skb functions allocating more 1270 * space than requested, i.e. aligning to 16bytes */ 1271 1272 ringptr->skb = dev_alloc_skb(roundup(MAX_ETHER_SIZE + 2, 4)); 1273 1274 if (NULL != ringptr->skb) { 1275 /* 1276 * Reserve 2 bytes at the head of the buffer to land the IP header 1277 * on a long word boundary (According to the Network Driver section 1278 * in the Linux KHG, this should help to increase performance.) 1279 */ 1280 skb_reserve(ringptr->skb, 2); 1281 1282 ringptr->skb->dev = dev; 1283 ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE); 1284 1285 /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ 1286 /* Note: 1st Fragment is used for the 4 byte packet status 1287 * (receive header). Its PDL entries are set up by init_rxpdl. So 1288 * here we only have to set up the PDL fragment entries for the data 1289 * part. Those 4 bytes will be stored in the DMA memory region 1290 * directly before the PDL. 1291 */ 1292#ifdef HP100_DEBUG_BM 1293 printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", 1294 dev->name, (u_int) ringptr->pdl, 1295 roundup(MAX_ETHER_SIZE + 2, 4), 1296 (unsigned int) ringptr->skb->data); 1297#endif 1298 1299 /* Conversion to new PCI API : map skbuf data to PCI bus. 1300 * Doc says it's OK for EISA as well - Jean II */ 1301 ringptr->pdl[0] = 0x00020000; /* Write PDH */ 1302 ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), 1303 ringptr->skb->data); 1304 ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ 1305 1306#ifdef HP100_DEBUG_BM 1307 for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) 1308 printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); 1309#endif 1310 return (1); 1311 } 1312 /* else: */ 1313 /* alloc_skb failed (no memory) -> still can receive the header 1314 * fragment into PDL memory. make PDL safe by clearing msgptr and 1315 * making the PDL only 1 fragment (i.e. the 4 byte packet status) 1316 */ 1317#ifdef HP100_DEBUG_BM 1318 printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); 1319#endif 1320 1321 ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ 1322 1323 return (0); 1324} 1325 1326/* 1327 * hp100_rxfill - attempt to fill the Rx Ring will empty skb's 1328 * 1329 * Makes assumption that skb's are always contiguous memory areas and 1330 * therefore PDLs contain only 2 physical fragments. 1331 * - While the number of Rx PDLs with buffers is less than maximum 1332 * a. Get a maximum packet size skb 1333 * b. Put the physical address of the buffer into the PDL. 1334 * c. Output physical address of PDL to adapter. 1335 */ 1336static void hp100_rxfill(struct net_device *dev) 1337{ 1338 int ioaddr = dev->base_addr; 1339 1340 struct hp100_private *lp = netdev_priv(dev); 1341 hp100_ring_t *ringptr; 1342 1343#ifdef HP100_DEBUG_B 1344 hp100_outw(0x4208, TRACE); 1345 printk("hp100: %s: rxfill\n", dev->name); 1346#endif 1347 1348 hp100_page(PERFORMANCE); 1349 1350 while (lp->rxrcommit < MAX_RX_PDL) { 1351 /* 1352 ** Attempt to get a buffer and build a Rx PDL. 1353 */ 1354 ringptr = lp->rxrtail; 1355 if (0 == hp100_build_rx_pdl(ringptr, dev)) { 1356 return; /* None available, return */ 1357 } 1358 1359 /* Hand this PDL over to the card */ 1360 /* Note: This needs performance page selected! */ 1361#ifdef HP100_DEBUG_BM 1362 printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", 1363 dev->name, lp->rxrcommit, (u_int) ringptr->pdl, 1364 (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); 1365#endif 1366 1367 hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); 1368 1369 lp->rxrcommit += 1; 1370 lp->rxrtail = ringptr->next; 1371 } 1372} 1373 1374/* 1375 * BM_shutdown - shutdown bus mastering and leave chip in reset state 1376 */ 1377 1378static void hp100_BM_shutdown(struct net_device *dev) 1379{ 1380 int ioaddr = dev->base_addr; 1381 struct hp100_private *lp = netdev_priv(dev); 1382 unsigned long time; 1383 1384#ifdef HP100_DEBUG_B 1385 hp100_outw(0x4209, TRACE); 1386 printk("hp100: %s: bm shutdown\n", dev->name); 1387#endif 1388 1389 hp100_page(PERFORMANCE); 1390 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 1391 hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ 1392 1393 /* Ensure Interrupts are off */ 1394 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); 1395 1396 /* Disable all MAC activity */ 1397 hp100_page(MAC_CTRL); 1398 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ 1399 1400 /* If cascade MMU is not already in reset */ 1401 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { 1402 /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so 1403 * MMU pointers will not be reset out from underneath 1404 */ 1405 hp100_page(MAC_CTRL); 1406 for (time = 0; time < 5000; time++) { 1407 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) 1408 break; 1409 } 1410 1411 /* Shutdown algorithm depends on the generation of Cascade */ 1412 if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ 1413 /* Disable Busmaster mode and wait for bit to go to zero. */ 1414 hp100_page(HW_MAP); 1415 hp100_andb(~HP100_BM_MASTER, BM); 1416 /* 100 ms timeout */ 1417 for (time = 0; time < 32000; time++) { 1418 if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) 1419 break; 1420 } 1421 } else { /* Shasta or Rainier Shutdown/Reset */ 1422 /* To ensure all bus master inloading activity has ceased, 1423 * wait for no Rx PDAs or no Rx packets on card. 1424 */ 1425 hp100_page(PERFORMANCE); 1426 /* 100 ms timeout */ 1427 for (time = 0; time < 10000; time++) { 1428 /* RX_PDL: PDLs not executed. */ 1429 /* RX_PKT_CNT: RX'd packets on card. */ 1430 if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) 1431 break; 1432 } 1433 1434 if (time >= 10000) 1435 printk("hp100: %s: BM shutdown error.\n", dev->name); 1436 1437 /* To ensure all bus master outloading activity has ceased, 1438 * wait until the Tx PDA count goes to zero or no more Tx space 1439 * available in the Tx region of the card. 1440 */ 1441 /* 100 ms timeout */ 1442 for (time = 0; time < 10000; time++) { 1443 if ((0 == hp100_inb(TX_PKT_CNT)) && 1444 (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) 1445 break; 1446 } 1447 1448 /* Disable Busmaster mode */ 1449 hp100_page(HW_MAP); 1450 hp100_andb(~HP100_BM_MASTER, BM); 1451 } /* end of shutdown procedure for non-etr parts */ 1452 1453 hp100_cascade_reset(dev, 1); 1454 } 1455 hp100_page(PERFORMANCE); 1456 /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ 1457 /* Busmaster mode should be shut down now. */ 1458} 1459 1460static int hp100_check_lan(struct net_device *dev) 1461{ 1462 struct hp100_private *lp = netdev_priv(dev); 1463 1464 if (lp->lan_type < 0) { /* no LAN type detected yet? */ 1465 hp100_stop_interface(dev); 1466 if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { 1467 printk("hp100: %s: no connection found - check wire\n", dev->name); 1468 hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ 1469 return -EIO; 1470 } 1471 if (lp->lan_type == HP100_LAN_100) 1472 lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ 1473 hp100_start_interface(dev); 1474 } 1475 return 0; 1476} 1477 1478/* 1479 * transmit functions 1480 */ 1481 1482/* tx function for busmaster mode */ 1483static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, 1484 struct net_device *dev) 1485{ 1486 unsigned long flags; 1487 int i, ok_flag; 1488 int ioaddr = dev->base_addr; 1489 struct hp100_private *lp = netdev_priv(dev); 1490 hp100_ring_t *ringptr; 1491 1492#ifdef HP100_DEBUG_B 1493 hp100_outw(0x4210, TRACE); 1494 printk("hp100: %s: start_xmit_bm\n", dev->name); 1495#endif 1496 if (skb->len <= 0) 1497 goto drop; 1498 1499 if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) 1500 return NETDEV_TX_OK; 1501 1502 /* Get Tx ring tail pointer */ 1503 if (lp->txrtail->next == lp->txrhead) { 1504 /* No memory. */ 1505#ifdef HP100_DEBUG 1506 printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); 1507#endif 1508 /* not waited long enough since last tx? */ 1509 if (time_before(jiffies, dev_trans_start(dev) + HZ)) 1510 goto drop; 1511 1512 if (hp100_check_lan(dev)) 1513 goto drop; 1514 1515 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { 1516 /* we have a 100Mb/s adapter but it isn't connected to hub */ 1517 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); 1518 hp100_stop_interface(dev); 1519 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1520 hp100_start_interface(dev); 1521 } else { 1522 spin_lock_irqsave(&lp->lock, flags); 1523 hp100_ints_off(); /* Useful ? Jean II */ 1524 i = hp100_sense_lan(dev); 1525 hp100_ints_on(); 1526 spin_unlock_irqrestore(&lp->lock, flags); 1527 if (i == HP100_LAN_ERR) 1528 printk("hp100: %s: link down detected\n", dev->name); 1529 else if (lp->lan_type != i) { /* cable change! */ 1530 /* it's very hard - all network settings must be changed!!! */ 1531 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); 1532 lp->lan_type = i; 1533 hp100_stop_interface(dev); 1534 if (lp->lan_type == HP100_LAN_100) 1535 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1536 hp100_start_interface(dev); 1537 } else { 1538 printk("hp100: %s: interface reset\n", dev->name); 1539 hp100_stop_interface(dev); 1540 if (lp->lan_type == HP100_LAN_100) 1541 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1542 hp100_start_interface(dev); 1543 } 1544 } 1545 1546 goto drop; 1547 } 1548 1549 /* 1550 * we have to turn int's off before modifying this, otherwise 1551 * a tx_pdl_cleanup could occur at the same time 1552 */ 1553 spin_lock_irqsave(&lp->lock, flags); 1554 ringptr = lp->txrtail; 1555 lp->txrtail = ringptr->next; 1556 1557 /* Check whether packet has minimal packet size */ 1558 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; 1559 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; 1560 1561 ringptr->skb = skb; 1562 ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ 1563 if (lp->chip == HP100_CHIPID_SHASTA) { 1564 /* TODO:Could someone who has the EISA card please check if this works? */ 1565 ringptr->pdl[2] = i; 1566 } else { /* Lassen */ 1567 /* In the PDL, don't use the padded size but the real packet size: */ 1568 ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ 1569 } 1570 /* Conversion to new PCI API : map skbuf data to PCI bus. 1571 * Doc says it's OK for EISA as well - Jean II */ 1572 ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ 1573 1574 /* Hand this PDL to the card. */ 1575 hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ 1576 1577 lp->txrcommit++; 1578 spin_unlock_irqrestore(&lp->lock, flags); 1579 1580 /* Update statistics */ 1581 dev->stats.tx_packets++; 1582 dev->stats.tx_bytes += skb->len; 1583 1584 return NETDEV_TX_OK; 1585 1586drop: 1587 dev_kfree_skb(skb); 1588 return NETDEV_TX_OK; 1589} 1590 1591 1592/* clean_txring checks if packets have been sent by the card by reading 1593 * the TX_PDL register from the performance page and comparing it to the 1594 * number of commited packets. It then frees the skb's of the packets that 1595 * obviously have been sent to the network. 1596 * 1597 * Needs the PERFORMANCE page selected. 1598 */ 1599static void hp100_clean_txring(struct net_device *dev) 1600{ 1601 struct hp100_private *lp = netdev_priv(dev); 1602 int ioaddr = dev->base_addr; 1603 int donecount; 1604 1605#ifdef HP100_DEBUG_B 1606 hp100_outw(0x4211, TRACE); 1607 printk("hp100: %s: clean txring\n", dev->name); 1608#endif 1609 1610 /* How many PDLs have been transmitted? */ 1611 donecount = (lp->txrcommit) - hp100_inb(TX_PDL); 1612 1613#ifdef HP100_DEBUG 1614 if (donecount > MAX_TX_PDL) 1615 printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name); 1616#endif 1617 1618 for (; 0 != donecount; donecount--) { 1619#ifdef HP100_DEBUG_BM 1620 printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", 1621 dev->name, (u_int) lp->txrhead->skb->data, 1622 lp->txrcommit, hp100_inb(TX_PDL), donecount); 1623#endif 1624 /* Conversion to new PCI API : NOP */ 1625 pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); 1626 dev_kfree_skb_any(lp->txrhead->skb); 1627 lp->txrhead->skb = (void *) NULL; 1628 lp->txrhead = lp->txrhead->next; 1629 lp->txrcommit--; 1630 } 1631} 1632 1633/* tx function for slave modes */ 1634static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, 1635 struct net_device *dev) 1636{ 1637 unsigned long flags; 1638 int i, ok_flag; 1639 int ioaddr = dev->base_addr; 1640 u_short val; 1641 struct hp100_private *lp = netdev_priv(dev); 1642 1643#ifdef HP100_DEBUG_B 1644 hp100_outw(0x4212, TRACE); 1645 printk("hp100: %s: start_xmit\n", dev->name); 1646#endif 1647 if (skb->len <= 0) 1648 goto drop; 1649 1650 if (hp100_check_lan(dev)) 1651 goto drop; 1652 1653 /* If there is not enough free memory on the card... */ 1654 i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; 1655 if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { 1656#ifdef HP100_DEBUG 1657 printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); 1658#endif 1659 /* not waited long enough since last failed tx try? */ 1660 if (time_before(jiffies, dev_trans_start(dev) + HZ)) { 1661#ifdef HP100_DEBUG 1662 printk("hp100: %s: trans_start timing problem\n", 1663 dev->name); 1664#endif 1665 goto drop; 1666 } 1667 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { 1668 /* we have a 100Mb/s adapter but it isn't connected to hub */ 1669 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); 1670 hp100_stop_interface(dev); 1671 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1672 hp100_start_interface(dev); 1673 } else { 1674 spin_lock_irqsave(&lp->lock, flags); 1675 hp100_ints_off(); /* Useful ? Jean II */ 1676 i = hp100_sense_lan(dev); 1677 hp100_ints_on(); 1678 spin_unlock_irqrestore(&lp->lock, flags); 1679 if (i == HP100_LAN_ERR) 1680 printk("hp100: %s: link down detected\n", dev->name); 1681 else if (lp->lan_type != i) { /* cable change! */ 1682 /* it's very hard - all network setting must be changed!!! */ 1683 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); 1684 lp->lan_type = i; 1685 hp100_stop_interface(dev); 1686 if (lp->lan_type == HP100_LAN_100) 1687 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1688 hp100_start_interface(dev); 1689 } else { 1690 printk("hp100: %s: interface reset\n", dev->name); 1691 hp100_stop_interface(dev); 1692 if (lp->lan_type == HP100_LAN_100) 1693 lp->hub_status = hp100_login_to_vg_hub(dev, 0); 1694 hp100_start_interface(dev); 1695 mdelay(1); 1696 } 1697 } 1698 goto drop; 1699 } 1700 1701 for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { 1702#ifdef HP100_DEBUG_TX 1703 printk("hp100: %s: start_xmit: busy\n", dev->name); 1704#endif 1705 } 1706 1707 spin_lock_irqsave(&lp->lock, flags); 1708 hp100_ints_off(); 1709 val = hp100_inw(IRQ_STATUS); 1710 /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set 1711 * when the current packet being transmitted on the wire is completed. */ 1712 hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); 1713#ifdef HP100_DEBUG_TX 1714 printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", 1715 dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); 1716#endif 1717 1718 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; 1719 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; 1720 1721 hp100_outw(i, DATA32); /* tell card the total packet length */ 1722 hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ 1723 1724 if (lp->mode == 2) { /* memory mapped */ 1725 /* Note: The J2585B needs alignment to 32bits here! */ 1726 memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); 1727 if (!ok_flag) 1728 memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); 1729 } else { /* programmed i/o */ 1730 outsl(ioaddr + HP100_REG_DATA32, skb->data, 1731 (skb->len + 3) >> 2); 1732 if (!ok_flag) 1733 for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) 1734 hp100_outl(0, DATA32); 1735 } 1736 1737 hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ 1738 1739 dev->stats.tx_packets++; 1740 dev->stats.tx_bytes += skb->len; 1741 hp100_ints_on(); 1742 spin_unlock_irqrestore(&lp->lock, flags); 1743 1744 dev_kfree_skb_any(skb); 1745 1746#ifdef HP100_DEBUG_TX 1747 printk("hp100: %s: start_xmit: end\n", dev->name); 1748#endif 1749 1750 return NETDEV_TX_OK; 1751 1752drop: 1753 dev_kfree_skb(skb); 1754 return NETDEV_TX_OK; 1755 1756} 1757 1758 1759/* 1760 * Receive Function (Non-Busmaster mode) 1761 * Called when an "Receive Packet" interrupt occurs, i.e. the receive 1762 * packet counter is non-zero. 1763 * For non-busmaster, this function does the whole work of transfering 1764 * the packet to the host memory and then up to higher layers via skb 1765 * and netif_rx. 1766 */ 1767 1768static void hp100_rx(struct net_device *dev) 1769{ 1770 int packets, pkt_len; 1771 int ioaddr = dev->base_addr; 1772 struct hp100_private *lp = netdev_priv(dev); 1773 u_int header; 1774 struct sk_buff *skb; 1775 1776#ifdef DEBUG_B 1777 hp100_outw(0x4213, TRACE); 1778 printk("hp100: %s: rx\n", dev->name); 1779#endif 1780 1781 /* First get indication of received lan packet */ 1782 /* RX_PKT_CND indicates the number of packets which have been fully */ 1783 /* received onto the card but have not been fully transferred of the card */ 1784 packets = hp100_inb(RX_PKT_CNT); 1785#ifdef HP100_DEBUG_RX 1786 if (packets > 1) 1787 printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); 1788#endif 1789 1790 while (packets-- > 0) { 1791 /* If ADV_NXT_PKT is still set, we have to wait until the card has */ 1792 /* really advanced to the next packet. */ 1793 for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { 1794#ifdef HP100_DEBUG_RX 1795 printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); 1796#endif 1797 } 1798 1799 /* First we get the header, which contains information about the */ 1800 /* actual length of the received packet. */ 1801 if (lp->mode == 2) { /* memory mapped mode */ 1802 header = readl(lp->mem_ptr_virt); 1803 } else /* programmed i/o */ 1804 header = hp100_inl(DATA32); 1805 1806 pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; 1807 1808#ifdef HP100_DEBUG_RX 1809 printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", 1810 dev->name, header & HP100_PKT_LEN_MASK, 1811 (header >> 16) & 0xfff8, (header >> 16) & 7); 1812#endif 1813 1814 /* Now we allocate the skb and transfer the data into it. */ 1815 skb = dev_alloc_skb(pkt_len+2); 1816 if (skb == NULL) { /* Not enough memory->drop packet */ 1817#ifdef HP100_DEBUG 1818 printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", 1819 dev->name, pkt_len); 1820#endif 1821 dev->stats.rx_dropped++; 1822 } else { /* skb successfully allocated */ 1823 1824 u_char *ptr; 1825 1826 skb_reserve(skb,2); 1827 1828 /* ptr to start of the sk_buff data area */ 1829 skb_put(skb, pkt_len); 1830 ptr = skb->data; 1831 1832 /* Now transfer the data from the card into that area */ 1833 if (lp->mode == 2) 1834 memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); 1835 else /* io mapped */ 1836 insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); 1837 1838 skb->protocol = eth_type_trans(skb, dev); 1839 1840#ifdef HP100_DEBUG_RX 1841 printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 1842 dev->name, ptr[0], ptr[1], ptr[2], ptr[3], 1843 ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], 1844 ptr[9], ptr[10], ptr[11]); 1845#endif 1846 netif_rx(skb); 1847 dev->stats.rx_packets++; 1848 dev->stats.rx_bytes += pkt_len; 1849 } 1850 1851 /* Indicate the card that we have got the packet */ 1852 hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); 1853 1854 switch (header & 0x00070000) { 1855 case (HP100_MULTI_ADDR_HASH << 16): 1856 case (HP100_MULTI_ADDR_NO_HASH << 16): 1857 dev->stats.multicast++; 1858 break; 1859 } 1860 } /* end of while(there are packets) loop */ 1861#ifdef HP100_DEBUG_RX 1862 printk("hp100_rx: %s: end\n", dev->name); 1863#endif 1864} 1865 1866/* 1867 * Receive Function for Busmaster Mode 1868 */ 1869static void hp100_rx_bm(struct net_device *dev) 1870{ 1871 int ioaddr = dev->base_addr; 1872 struct hp100_private *lp = netdev_priv(dev); 1873 hp100_ring_t *ptr; 1874 u_int header; 1875 int pkt_len; 1876 1877#ifdef HP100_DEBUG_B 1878 hp100_outw(0x4214, TRACE); 1879 printk("hp100: %s: rx_bm\n", dev->name); 1880#endif 1881 1882#ifdef HP100_DEBUG 1883 if (0 == lp->rxrcommit) { 1884 printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); 1885 return; 1886 } else 1887 /* RX_PKT_CNT states how many PDLs are currently formatted and available to 1888 * the cards BM engine */ 1889 if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { 1890 printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n", 1891 dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, 1892 lp->rxrcommit); 1893 return; 1894 } 1895#endif 1896 1897 while ((lp->rxrcommit > hp100_inb(RX_PDL))) { 1898 /* 1899 * The packet was received into the pdl pointed to by lp->rxrhead ( 1900 * the oldest pdl in the ring 1901 */ 1902 1903 /* First we get the header, which contains information about the */ 1904 /* actual length of the received packet. */ 1905 1906 ptr = lp->rxrhead; 1907 1908 header = *(ptr->pdl - 1); 1909 pkt_len = (header & HP100_PKT_LEN_MASK); 1910 1911 /* Conversion to new PCI API : NOP */ 1912 pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); 1913 1914#ifdef HP100_DEBUG_BM 1915 printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", 1916 dev->name, (u_int) (ptr->pdl - 1), (u_int) header, 1917 pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); 1918 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", 1919 dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), 1920 hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), 1921 (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); 1922#endif 1923 1924 if ((pkt_len >= MIN_ETHER_SIZE) && 1925 (pkt_len <= MAX_ETHER_SIZE)) { 1926 if (ptr->skb == NULL) { 1927 printk("hp100: %s: rx_bm: skb null\n", dev->name); 1928 /* can happen if we only allocated room for the pdh due to memory shortage. */ 1929 dev->stats.rx_dropped++; 1930 } else { 1931 skb_trim(ptr->skb, pkt_len); /* Shorten it */ 1932 ptr->skb->protocol = 1933 eth_type_trans(ptr->skb, dev); 1934 1935 netif_rx(ptr->skb); /* Up and away... */ 1936 1937 dev->stats.rx_packets++; 1938 dev->stats.rx_bytes += pkt_len; 1939 } 1940 1941 switch (header & 0x00070000) { 1942 case (HP100_MULTI_ADDR_HASH << 16): 1943 case (HP100_MULTI_ADDR_NO_HASH << 16): 1944 dev->stats.multicast++; 1945 break; 1946 } 1947 } else { 1948#ifdef HP100_DEBUG 1949 printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); 1950#endif 1951 if (ptr->skb != NULL) 1952 dev_kfree_skb_any(ptr->skb); 1953 dev->stats.rx_errors++; 1954 } 1955 1956 lp->rxrhead = lp->rxrhead->next; 1957 1958 /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ 1959 if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { 1960 /* No space for skb, header can still be received. */ 1961#ifdef HP100_DEBUG 1962 printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); 1963#endif 1964 return; 1965 } else { /* successfully allocated new PDL - put it in ringlist at tail. */ 1966 hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); 1967 lp->rxrtail = lp->rxrtail->next; 1968 } 1969 1970 } 1971} 1972 1973/* 1974 * statistics 1975 */ 1976static struct net_device_stats *hp100_get_stats(struct net_device *dev) 1977{ 1978 unsigned long flags; 1979 int ioaddr = dev->base_addr; 1980 struct hp100_private *lp = netdev_priv(dev); 1981 1982#ifdef HP100_DEBUG_B 1983 hp100_outw(0x4215, TRACE); 1984#endif 1985 1986 spin_lock_irqsave(&lp->lock, flags); 1987 hp100_ints_off(); /* Useful ? Jean II */ 1988 hp100_update_stats(dev); 1989 hp100_ints_on(); 1990 spin_unlock_irqrestore(&lp->lock, flags); 1991 return &(dev->stats); 1992} 1993 1994static void hp100_update_stats(struct net_device *dev) 1995{ 1996 int ioaddr = dev->base_addr; 1997 u_short val; 1998 1999#ifdef HP100_DEBUG_B 2000 hp100_outw(0x4216, TRACE); 2001 printk("hp100: %s: update-stats\n", dev->name); 2002#endif 2003 2004 /* Note: Statistics counters clear when read. */ 2005 hp100_page(MAC_CTRL); 2006 val = hp100_inw(DROPPED) & 0x0fff; 2007 dev->stats.rx_errors += val; 2008 dev->stats.rx_over_errors += val; 2009 val = hp100_inb(CRC); 2010 dev->stats.rx_errors += val; 2011 dev->stats.rx_crc_errors += val; 2012 val = hp100_inb(ABORT); 2013 dev->stats.tx_errors += val; 2014 dev->stats.tx_aborted_errors += val; 2015 hp100_page(PERFORMANCE); 2016} 2017 2018static void hp100_misc_interrupt(struct net_device *dev) 2019{ 2020#ifdef HP100_DEBUG_B 2021 int ioaddr = dev->base_addr; 2022#endif 2023 2024#ifdef HP100_DEBUG_B 2025 int ioaddr = dev->base_addr; 2026 hp100_outw(0x4216, TRACE); 2027 printk("hp100: %s: misc_interrupt\n", dev->name); 2028#endif 2029 2030 /* Note: Statistics counters clear when read. */ 2031 dev->stats.rx_errors++; 2032 dev->stats.tx_errors++; 2033} 2034 2035static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) 2036{ 2037 unsigned long flags; 2038 2039#ifdef HP100_DEBUG_B 2040 hp100_outw(0x4217, TRACE); 2041 printk("hp100: %s: clear_stats\n", dev->name); 2042#endif 2043 2044 spin_lock_irqsave(&lp->lock, flags); 2045 hp100_page(MAC_CTRL); /* get all statistics bytes */ 2046 hp100_inw(DROPPED); 2047 hp100_inb(CRC); 2048 hp100_inb(ABORT); 2049 hp100_page(PERFORMANCE); 2050 spin_unlock_irqrestore(&lp->lock, flags); 2051} 2052 2053 2054/* 2055 * multicast setup 2056 */ 2057 2058/* 2059 * Set or clear the multicast filter for this adapter. 2060 */ 2061 2062static void hp100_set_multicast_list(struct net_device *dev) 2063{ 2064 unsigned long flags; 2065 int ioaddr = dev->base_addr; 2066 struct hp100_private *lp = netdev_priv(dev); 2067 2068#ifdef HP100_DEBUG_B 2069 hp100_outw(0x4218, TRACE); 2070 printk("hp100: %s: set_mc_list\n", dev->name); 2071#endif 2072 2073 spin_lock_irqsave(&lp->lock, flags); 2074 hp100_ints_off(); 2075 hp100_page(MAC_CTRL); 2076 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ 2077 2078 if (dev->flags & IFF_PROMISC) { 2079 lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ 2080 lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ 2081 memset(&lp->hash_bytes, 0xff, 8); 2082 } else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI)) { 2083 lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ 2084 lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ 2085#ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ 2086 if (dev->flags & IFF_ALLMULTI) { 2087 /* set hash filter to receive all multicast packets */ 2088 memset(&lp->hash_bytes, 0xff, 8); 2089 } else { 2090 int i, idx; 2091 u_char *addrs; 2092 struct netdev_hw_addr *ha; 2093 2094 memset(&lp->hash_bytes, 0x00, 8); 2095#ifdef HP100_DEBUG 2096 printk("hp100: %s: computing hash filter - mc_count = %i\n", 2097 dev->name, netdev_mc_count(dev)); 2098#endif 2099 netdev_for_each_mc_addr(ha, dev) { 2100 addrs = ha->addr; 2101 if ((*addrs & 0x01) == 0x01) { /* multicast address? */ 2102#ifdef HP100_DEBUG 2103 printk("hp100: %s: multicast = %pM, ", 2104 dev->name, addrs); 2105#endif 2106 for (i = idx = 0; i < 6; i++) { 2107 idx ^= *addrs++ & 0x3f; 2108 printk(":%02x:", idx); 2109 } 2110#ifdef HP100_DEBUG 2111 printk("idx = %i\n", idx); 2112#endif 2113 lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); 2114 } 2115 } 2116 } 2117#else 2118 memset(&lp->hash_bytes, 0xff, 8); 2119#endif 2120 } else { 2121 lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ 2122 lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ 2123 memset(&lp->hash_bytes, 0x00, 8); 2124 } 2125 2126 if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || 2127 (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { 2128 int i; 2129 2130 hp100_outb(lp->mac2_mode, MAC_CFG_2); 2131 hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ 2132 hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ 2133 2134 hp100_page(MAC_ADDRESS); 2135 for (i = 0; i < 8; i++) 2136 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); 2137#ifdef HP100_DEBUG 2138 printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 2139 dev->name, lp->mac1_mode, lp->mac2_mode, 2140 lp->hash_bytes[0], lp->hash_bytes[1], 2141 lp->hash_bytes[2], lp->hash_bytes[3], 2142 lp->hash_bytes[4], lp->hash_bytes[5], 2143 lp->hash_bytes[6], lp->hash_bytes[7]); 2144#endif 2145 2146 if (lp->lan_type == HP100_LAN_100) { 2147#ifdef HP100_DEBUG 2148 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); 2149#endif 2150 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ 2151 } 2152 } else { 2153 int i; 2154 u_char old_hash_bytes[8]; 2155 2156 hp100_page(MAC_ADDRESS); 2157 for (i = 0; i < 8; i++) 2158 old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); 2159 if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { 2160 for (i = 0; i < 8; i++) 2161 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); 2162#ifdef HP100_DEBUG 2163 printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 2164 dev->name, lp->hash_bytes[0], 2165 lp->hash_bytes[1], lp->hash_bytes[2], 2166 lp->hash_bytes[3], lp->hash_bytes[4], 2167 lp->hash_bytes[5], lp->hash_bytes[6], 2168 lp->hash_bytes[7]); 2169#endif 2170 2171 if (lp->lan_type == HP100_LAN_100) { 2172#ifdef HP100_DEBUG 2173 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); 2174#endif 2175 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ 2176 } 2177 } 2178 } 2179 2180 hp100_page(MAC_CTRL); 2181 hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ 2182 HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ 2183 2184 hp100_page(PERFORMANCE); 2185 hp100_ints_on(); 2186 spin_unlock_irqrestore(&lp->lock, flags); 2187} 2188 2189/* 2190 * hardware interrupt handling 2191 */ 2192 2193static irqreturn_t hp100_interrupt(int irq, void *dev_id) 2194{ 2195 struct net_device *dev = (struct net_device *) dev_id; 2196 struct hp100_private *lp = netdev_priv(dev); 2197 2198 int ioaddr; 2199 u_int val; 2200 2201 if (dev == NULL) 2202 return IRQ_NONE; 2203 ioaddr = dev->base_addr; 2204 2205 spin_lock(&lp->lock); 2206 2207 hp100_ints_off(); 2208 2209#ifdef HP100_DEBUG_B 2210 hp100_outw(0x4219, TRACE); 2211#endif 2212 2213 /* hp100_page( PERFORMANCE ); */ 2214 val = hp100_inw(IRQ_STATUS); 2215#ifdef HP100_DEBUG_IRQ 2216 printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", 2217 dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), 2218 hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); 2219#endif 2220 2221 if (val == 0) { /* might be a shared interrupt */ 2222 spin_unlock(&lp->lock); 2223 hp100_ints_on(); 2224 return IRQ_NONE; 2225 } 2226 /* We're only interested in those interrupts we really enabled. */ 2227 /* val &= hp100_inw( IRQ_MASK ); */ 2228 2229 /* 2230 * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL 2231 * is considered executed whenever the RX_PDL data structure is no longer 2232 * needed. 2233 */ 2234 if (val & HP100_RX_PDL_FILL_COMPL) { 2235 if (lp->mode == 1) 2236 hp100_rx_bm(dev); 2237 else { 2238 printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); 2239 } 2240 } 2241 2242 /* 2243 * The RX_PACKET interrupt is set, when the receive packet counter is 2244 * non zero. We use this interrupt for receiving in slave mode. In 2245 * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill 2246 * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then 2247 * we somehow have missed a rx_pdl_fill_compl interrupt. 2248 */ 2249 2250 if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ 2251 if (lp->mode != 1) /* non busmaster */ 2252 hp100_rx(dev); 2253 else if (!(val & HP100_RX_PDL_FILL_COMPL)) { 2254 /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */ 2255 hp100_rx_bm(dev); 2256 } 2257 } 2258 2259 /* 2260 * Ack. that we have noticed the interrupt and thereby allow next one. 2261 * Note that this is now done after the slave rx function, since first 2262 * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt 2263 * on the J2573. 2264 */ 2265 hp100_outw(val, IRQ_STATUS); 2266 2267 /* 2268 * RX_ERROR is set when a packet is dropped due to no memory resources on 2269 * the card or when a RCV_ERR occurs. 2270 * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists 2271 * only in the 802.3 MAC and happens when 16 collisions occur during a TX 2272 */ 2273 if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { 2274#ifdef HP100_DEBUG_IRQ 2275 printk("hp100: %s: TX/RX Error IRQ\n", dev->name); 2276#endif 2277 hp100_update_stats(dev); 2278 if (lp->mode == 1) { 2279 hp100_rxfill(dev); 2280 hp100_clean_txring(dev); 2281 } 2282 } 2283 2284 /* 2285 * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. 2286 */ 2287 if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) 2288 hp100_rxfill(dev); 2289 2290 /* 2291 * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire 2292 * is completed 2293 */ 2294 if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) 2295 hp100_clean_txring(dev); 2296 2297 /* 2298 * MISC_ERROR is set when either the LAN link goes down or a detected 2299 * bus error occurs. 2300 */ 2301 if (val & HP100_MISC_ERROR) { /* New for J2585B */ 2302#ifdef HP100_DEBUG_IRQ 2303 printk 2304 ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", 2305 dev->name); 2306#endif 2307 if (lp->mode == 1) { 2308 hp100_clean_txring(dev); 2309 hp100_rxfill(dev); 2310 } 2311 hp100_misc_interrupt(dev); 2312 } 2313 2314 spin_unlock(&lp->lock); 2315 hp100_ints_on(); 2316 return IRQ_HANDLED; 2317} 2318 2319/* 2320 * some misc functions 2321 */ 2322 2323static void hp100_start_interface(struct net_device *dev) 2324{ 2325 unsigned long flags; 2326 int ioaddr = dev->base_addr; 2327 struct hp100_private *lp = netdev_priv(dev); 2328 2329#ifdef HP100_DEBUG_B 2330 hp100_outw(0x4220, TRACE); 2331 printk("hp100: %s: hp100_start_interface\n", dev->name); 2332#endif 2333 2334 spin_lock_irqsave(&lp->lock, flags); 2335 2336 /* Ensure the adapter does not want to request an interrupt when */ 2337 /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ 2338 hp100_page(PERFORMANCE); 2339 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 2340 hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ 2341 hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, 2342 OPTION_LSW); 2343 /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ 2344 hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); 2345 2346 if (lp->mode == 1) { 2347 /* Make sure BM bit is set... */ 2348 hp100_page(HW_MAP); 2349 hp100_orb(HP100_BM_MASTER, BM); 2350 hp100_rxfill(dev); 2351 } else if (lp->mode == 2) { 2352 /* Enable memory mapping. Note: Don't do this when busmaster. */ 2353 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); 2354 } 2355 2356 hp100_page(PERFORMANCE); 2357 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ 2358 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ 2359 2360 /* enable a few interrupts: */ 2361 if (lp->mode == 1) { /* busmaster mode */ 2362 hp100_outw(HP100_RX_PDL_FILL_COMPL | 2363 HP100_RX_PDA_ZERO | HP100_RX_ERROR | 2364 /* HP100_RX_PACKET | */ 2365 /* HP100_RX_EARLY_INT | */ HP100_SET_HB | 2366 /* HP100_TX_PDA_ZERO | */ 2367 HP100_TX_COMPLETE | 2368 /* HP100_MISC_ERROR | */ 2369 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); 2370 } else { 2371 hp100_outw(HP100_RX_PACKET | 2372 HP100_RX_ERROR | HP100_SET_HB | 2373 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); 2374 } 2375 2376 /* Note : before hp100_set_multicast_list(), because it will play with 2377 * spinlock itself... Jean II */ 2378 spin_unlock_irqrestore(&lp->lock, flags); 2379 2380 /* Enable MAC Tx and RX, set MAC modes, ... */ 2381 hp100_set_multicast_list(dev); 2382} 2383 2384static void hp100_stop_interface(struct net_device *dev) 2385{ 2386 struct hp100_private *lp = netdev_priv(dev); 2387 int ioaddr = dev->base_addr; 2388 u_int val; 2389 2390#ifdef HP100_DEBUG_B 2391 printk("hp100: %s: hp100_stop_interface\n", dev->name); 2392 hp100_outw(0x4221, TRACE); 2393#endif 2394 2395 if (lp->mode == 1) 2396 hp100_BM_shutdown(dev); 2397 else { 2398 /* Note: MMAP_DIS will be reenabled by start_interface */ 2399 hp100_outw(HP100_INT_EN | HP100_RESET_LB | 2400 HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, 2401 OPTION_LSW); 2402 val = hp100_inw(OPTION_LSW); 2403 2404 hp100_page(MAC_CTRL); 2405 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); 2406 2407 if (!(val & HP100_HW_RST)) 2408 return; /* If reset, imm. return ... */ 2409 /* ... else: busy wait until idle */ 2410 for (val = 0; val < 6000; val++) 2411 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { 2412 hp100_page(PERFORMANCE); 2413 return; 2414 } 2415 printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); 2416 hp100_page(PERFORMANCE); 2417 } 2418} 2419 2420static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) 2421{ 2422 int i; 2423 int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; 2424 2425#ifdef HP100_DEBUG_B 2426 hp100_outw(0x4222, TRACE); 2427#endif 2428 2429 hp100_page(EEPROM_CTRL); 2430 hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); 2431 hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); 2432 for (i = 0; i < 10000; i++) 2433 if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) 2434 return; 2435 printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); 2436} 2437 2438/* Sense connection status. 2439 * return values: LAN_10 - Connected to 10Mbit/s network 2440 * LAN_100 - Connected to 100Mbit/s network 2441 * LAN_ERR - not connected or 100Mbit/s Hub down 2442 */ 2443static int hp100_sense_lan(struct net_device *dev) 2444{ 2445 int ioaddr = dev->base_addr; 2446 u_short val_VG, val_10; 2447 struct hp100_private *lp = netdev_priv(dev); 2448 2449#ifdef HP100_DEBUG_B 2450 hp100_outw(0x4223, TRACE); 2451#endif 2452 2453 hp100_page(MAC_CTRL); 2454 val_10 = hp100_inb(10_LAN_CFG_1); 2455 val_VG = hp100_inb(VG_LAN_CFG_1); 2456 hp100_page(PERFORMANCE); 2457#ifdef HP100_DEBUG 2458 printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", 2459 dev->name, val_VG, val_10); 2460#endif 2461 2462 if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ 2463 return HP100_LAN_10; 2464 2465 if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ 2466 /* 2467 * This can be overriden by dos utility, so if this has no effect, 2468 * perhaps you need to download that utility from HP and set card 2469 * back to "auto detect". 2470 */ 2471 val_10 |= HP100_AUI_SEL | HP100_LOW_TH; 2472 hp100_page(MAC_CTRL); 2473 hp100_outb(val_10, 10_LAN_CFG_1); 2474 hp100_page(PERFORMANCE); 2475 return HP100_LAN_COAX; 2476 } 2477 2478 /* Those cards don't have a 100 Mbit connector */ 2479 if ( !strcmp(lp->id, "HWP1920") || 2480 (lp->pci_dev && 2481 lp->pci_dev->vendor == PCI_VENDOR_ID && 2482 (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || 2483 lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) 2484 return HP100_LAN_ERR; 2485 2486 if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ 2487 return HP100_LAN_100; 2488 return HP100_LAN_ERR; 2489} 2490 2491static int hp100_down_vg_link(struct net_device *dev) 2492{ 2493 struct hp100_private *lp = netdev_priv(dev); 2494 int ioaddr = dev->base_addr; 2495 unsigned long time; 2496 long savelan, newlan; 2497 2498#ifdef HP100_DEBUG_B 2499 hp100_outw(0x4224, TRACE); 2500 printk("hp100: %s: down_vg_link\n", dev->name); 2501#endif 2502 2503 hp100_page(MAC_CTRL); 2504 time = jiffies + (HZ / 4); 2505 do { 2506 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) 2507 break; 2508 if (!in_interrupt()) 2509 schedule_timeout_interruptible(1); 2510 } while (time_after(time, jiffies)); 2511 2512 if (time_after_eq(jiffies, time)) /* no signal->no logout */ 2513 return 0; 2514 2515 /* Drop the VG Link by clearing the link up cmd and load addr. */ 2516 2517 hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); 2518 hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); 2519 2520 /* Conditionally stall for >250ms on Link-Up Status (to go down) */ 2521 time = jiffies + (HZ / 2); 2522 do { 2523 if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) 2524 break; 2525 if (!in_interrupt()) 2526 schedule_timeout_interruptible(1); 2527 } while (time_after(time, jiffies)); 2528 2529#ifdef HP100_DEBUG 2530 if (time_after_eq(jiffies, time)) 2531 printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); 2532#endif 2533 2534 /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ 2535 /* logout under traffic (even though all the status bits are cleared), */ 2536 if (lp->chip == HP100_CHIPID_LASSEN) { 2537 /* Reset VG MAC to insure it leaves the logoff state even if */ 2538 /* the Hub is still emitting tones */ 2539 hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); 2540 udelay(1500); /* wait for >1ms */ 2541 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ 2542 udelay(1500); 2543 } 2544 2545 /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ 2546 /* to get the VG mac to full reset. This is not req.d with later chips */ 2547 /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ 2548 /* selected again! This will be left to the connect hub function to */ 2549 /* perform if desired. */ 2550 if (lp->chip == HP100_CHIPID_LASSEN) { 2551 /* Have to write to 10 and 100VG control registers simultaneously */ 2552 savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ 2553 newlan &= ~(HP100_VG_SEL << 16); 2554 newlan |= (HP100_DOT3_MAC) << 8; 2555 hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ 2556 hp100_outl(newlan, 10_LAN_CFG_1); 2557 2558 /* Conditionally stall for 5sec on VG selected. */ 2559 time = jiffies + (HZ * 5); 2560 do { 2561 if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) 2562 break; 2563 if (!in_interrupt()) 2564 schedule_timeout_interruptible(1); 2565 } while (time_after(time, jiffies)); 2566 2567 hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ 2568 hp100_outl(savelan, 10_LAN_CFG_1); 2569 } 2570 2571 time = jiffies + (3 * HZ); /* Timeout 3s */ 2572 do { 2573 if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) 2574 break; 2575 if (!in_interrupt()) 2576 schedule_timeout_interruptible(1); 2577 } while (time_after(time, jiffies)); 2578 2579 if (time_before_eq(time, jiffies)) { 2580#ifdef HP100_DEBUG 2581 printk("hp100: %s: down_vg_link: timeout\n", dev->name); 2582#endif 2583 return -EIO; 2584 } 2585 2586 time = jiffies + (2 * HZ); /* This seems to take a while.... */ 2587 do { 2588 if (!in_interrupt()) 2589 schedule_timeout_interruptible(1); 2590 } while (time_after(time, jiffies)); 2591 2592 return 0; 2593} 2594 2595static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) 2596{ 2597 int ioaddr = dev->base_addr; 2598 struct hp100_private *lp = netdev_priv(dev); 2599 u_short val = 0; 2600 unsigned long time; 2601 int startst; 2602 2603#ifdef HP100_DEBUG_B 2604 hp100_outw(0x4225, TRACE); 2605 printk("hp100: %s: login_to_vg_hub\n", dev->name); 2606#endif 2607 2608 /* Initiate a login sequence iff VG MAC is enabled and either Load Address 2609 * bit is zero or the force relogin flag is set (e.g. due to MAC address or 2610 * promiscuous mode change) 2611 */ 2612 hp100_page(MAC_CTRL); 2613 startst = hp100_inb(VG_LAN_CFG_1); 2614 if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { 2615#ifdef HP100_DEBUG_TRAINING 2616 printk("hp100: %s: Start training\n", dev->name); 2617#endif 2618 2619 /* Ensure VG Reset bit is 1 (i.e., do not reset) */ 2620 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); 2621 2622 /* If Lassen AND auto-select-mode AND VG tones were sensed on */ 2623 /* entry then temporarily put them into force 100Mbit mode */ 2624 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) 2625 hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); 2626 2627 /* Drop the VG link by zeroing Link Up Command and Load Address */ 2628 hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); 2629 2630#ifdef HP100_DEBUG_TRAINING 2631 printk("hp100: %s: Bring down the link\n", dev->name); 2632#endif 2633 2634 /* Wait for link to drop */ 2635 time = jiffies + (HZ / 10); 2636 do { 2637 if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) 2638 break; 2639 if (!in_interrupt()) 2640 schedule_timeout_interruptible(1); 2641 } while (time_after(time, jiffies)); 2642 2643 /* Start an addressed training and optionally request promiscuous port */ 2644 if ((dev->flags) & IFF_PROMISC) { 2645 hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); 2646 if (lp->chip == HP100_CHIPID_LASSEN) 2647 hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); 2648 } else { 2649 hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); 2650 /* For ETR parts we need to reset the prom. bit in the training 2651 * register, otherwise promiscious mode won't be disabled. 2652 */ 2653 if (lp->chip == HP100_CHIPID_LASSEN) { 2654 hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); 2655 } 2656 } 2657 2658 /* With ETR parts, frame format request bits can be set. */ 2659 if (lp->chip == HP100_CHIPID_LASSEN) 2660 hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); 2661 2662 hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); 2663 2664 /* Note: Next wait could be omitted for Hood and earlier chips under */ 2665 /* certain circumstances */ 2666 /* TODO: check if hood/earlier and skip wait. */ 2667 2668 /* Wait for either short timeout for VG tones or long for login */ 2669 /* Wait for the card hardware to signalise link cable status ok... */ 2670 hp100_page(MAC_CTRL); 2671 time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ 2672 do { 2673 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) 2674 break; 2675 if (!in_interrupt()) 2676 schedule_timeout_interruptible(1); 2677 } while (time_before(jiffies, time)); 2678 2679 if (time_after_eq(jiffies, time)) { 2680#ifdef HP100_DEBUG_TRAINING 2681 printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); 2682#endif 2683 } else { 2684#ifdef HP100_DEBUG_TRAINING 2685 printk 2686 ("hp100: %s: HUB tones detected. Trying to train.\n", 2687 dev->name); 2688#endif 2689 2690 time = jiffies + (2 * HZ); /* again a timeout */ 2691 do { 2692 val = hp100_inb(VG_LAN_CFG_1); 2693 if ((val & (HP100_LINK_UP_ST))) { 2694#ifdef HP100_DEBUG_TRAINING 2695 printk("hp100: %s: Passed training.\n", dev->name); 2696#endif 2697 break; 2698 } 2699 if (!in_interrupt()) 2700 schedule_timeout_interruptible(1); 2701 } while (time_after(time, jiffies)); 2702 } 2703 2704 /* If LINK_UP_ST is set, then we are logged into the hub. */ 2705 if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { 2706#ifdef HP100_DEBUG_TRAINING 2707 printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); 2708 if (lp->chip == HP100_CHIPID_LASSEN) { 2709 val = hp100_inw(TRAIN_ALLOW); 2710 printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", 2711 dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); 2712 printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); 2713 printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); 2714 } 2715#endif 2716 } else { 2717 /* If LINK_UP_ST is not set, login was not successful */ 2718 printk("hp100: %s: Problem logging into the HUB.\n", dev->name); 2719 if (lp->chip == HP100_CHIPID_LASSEN) { 2720 /* Check allowed Register to find out why there is a problem. */ 2721 val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ 2722#ifdef HP100_DEBUG_TRAINING 2723 printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); 2724#endif 2725 if (val & HP100_MALLOW_ACCDENIED) 2726 printk("hp100: %s: HUB access denied.\n", dev->name); 2727 if (val & HP100_MALLOW_CONFIGURE) 2728 printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); 2729 if (val & HP100_MALLOW_DUPADDR) 2730 printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); 2731 } 2732 } 2733 2734 /* If we have put the chip into forced 100 Mbit mode earlier, go back */ 2735 /* to auto-select mode */ 2736 2737 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { 2738 hp100_page(MAC_CTRL); 2739 hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); 2740 } 2741 2742 val = hp100_inb(VG_LAN_CFG_1); 2743 2744 /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ 2745 hp100_page(PERFORMANCE); 2746 hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); 2747 2748 if (val & HP100_LINK_UP_ST) 2749 return (0); /* login was ok */ 2750 else { 2751 printk("hp100: %s: Training failed.\n", dev->name); 2752 hp100_down_vg_link(dev); 2753 return -EIO; 2754 } 2755 } 2756 /* no forced relogin & already link there->no training. */ 2757 return -EIO; 2758} 2759 2760static void hp100_cascade_reset(struct net_device *dev, u_short enable) 2761{ 2762 int ioaddr = dev->base_addr; 2763 struct hp100_private *lp = netdev_priv(dev); 2764 2765#ifdef HP100_DEBUG_B 2766 hp100_outw(0x4226, TRACE); 2767 printk("hp100: %s: cascade_reset\n", dev->name); 2768#endif 2769 2770 if (enable) { 2771 hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); 2772 if (lp->chip == HP100_CHIPID_LASSEN) { 2773 /* Lassen requires a PCI transmit fifo reset */ 2774 hp100_page(HW_MAP); 2775 hp100_andb(~HP100_PCI_RESET, PCICTRL2); 2776 hp100_orb(HP100_PCI_RESET, PCICTRL2); 2777 /* Wait for min. 300 ns */ 2778 /* we can't use jiffies here, because it may be */ 2779 /* that we have disabled the timer... */ 2780 udelay(400); 2781 hp100_andb(~HP100_PCI_RESET, PCICTRL2); 2782 hp100_page(PERFORMANCE); 2783 } 2784 } else { /* bring out of reset */ 2785 hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); 2786 udelay(400); 2787 hp100_page(PERFORMANCE); 2788 } 2789} 2790 2791#ifdef HP100_DEBUG 2792void hp100_RegisterDump(struct net_device *dev) 2793{ 2794 int ioaddr = dev->base_addr; 2795 int Page; 2796 int Register; 2797 2798 /* Dump common registers */ 2799 printk("hp100: %s: Cascade Register Dump\n", dev->name); 2800 printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); 2801 printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); 2802 printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); 2803 printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); 2804 2805 /* Dump paged registers */ 2806 for (Page = 0; Page < 8; Page++) { 2807 /* Dump registers */ 2808 printk("page: 0x%.2x\n", Page); 2809 outw(Page, ioaddr + 0x02); 2810 for (Register = 0x8; Register < 0x22; Register += 2) { 2811 /* Display Register contents except data port */ 2812 if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { 2813 printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); 2814 } 2815 } 2816 } 2817 hp100_page(PERFORMANCE); 2818} 2819#endif 2820 2821 2822static void cleanup_dev(struct net_device *d) 2823{ 2824 struct hp100_private *p = netdev_priv(d); 2825 2826 unregister_netdev(d); 2827 release_region(d->base_addr, HP100_REGION_SIZE); 2828 2829 if (p->mode == 1) /* busmaster */ 2830 pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, 2831 p->page_vaddr_algn, 2832 virt_to_whatever(d, p->page_vaddr_algn)); 2833 if (p->mem_ptr_virt) 2834 iounmap(p->mem_ptr_virt); 2835 2836 free_netdev(d); 2837} 2838 2839#ifdef CONFIG_EISA 2840static int __init hp100_eisa_probe (struct device *gendev) 2841{ 2842 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); 2843 struct eisa_device *edev = to_eisa_device(gendev); 2844 int err; 2845 2846 if (!dev) 2847 return -ENOMEM; 2848 2849 SET_NETDEV_DEV(dev, &edev->dev); 2850 2851 err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); 2852 if (err) 2853 goto out1; 2854 2855#ifdef HP100_DEBUG 2856 printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, 2857 dev->base_addr); 2858#endif 2859 dev_set_drvdata(gendev, dev); 2860 return 0; 2861 out1: 2862 free_netdev(dev); 2863 return err; 2864} 2865 2866static int __devexit hp100_eisa_remove (struct device *gendev) 2867{ 2868 struct net_device *dev = dev_get_drvdata(gendev); 2869 cleanup_dev(dev); 2870 return 0; 2871} 2872 2873static struct eisa_driver hp100_eisa_driver = { 2874 .id_table = hp100_eisa_tbl, 2875 .driver = { 2876 .name = "hp100", 2877 .probe = hp100_eisa_probe, 2878 .remove = __devexit_p (hp100_eisa_remove), 2879 } 2880}; 2881#endif 2882 2883#ifdef CONFIG_PCI 2884static int __devinit hp100_pci_probe (struct pci_dev *pdev, 2885 const struct pci_device_id *ent) 2886{ 2887 struct net_device *dev; 2888 int ioaddr; 2889 u_short pci_command; 2890 int err; 2891 2892 if (pci_enable_device(pdev)) 2893 return -ENODEV; 2894 2895 dev = alloc_etherdev(sizeof(struct hp100_private)); 2896 if (!dev) { 2897 err = -ENOMEM; 2898 goto out0; 2899 } 2900 2901 SET_NETDEV_DEV(dev, &pdev->dev); 2902 2903 pci_read_config_word(pdev, PCI_COMMAND, &pci_command); 2904 if (!(pci_command & PCI_COMMAND_IO)) { 2905#ifdef HP100_DEBUG 2906 printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); 2907#endif 2908 pci_command |= PCI_COMMAND_IO; 2909 pci_write_config_word(pdev, PCI_COMMAND, pci_command); 2910 } 2911 2912 if (!(pci_command & PCI_COMMAND_MASTER)) { 2913#ifdef HP100_DEBUG 2914 printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); 2915#endif 2916 pci_command |= PCI_COMMAND_MASTER; 2917 pci_write_config_word(pdev, PCI_COMMAND, pci_command); 2918 } 2919 2920 ioaddr = pci_resource_start(pdev, 0); 2921 err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); 2922 if (err) 2923 goto out1; 2924 2925#ifdef HP100_DEBUG 2926 printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); 2927#endif 2928 pci_set_drvdata(pdev, dev); 2929 return 0; 2930 out1: 2931 free_netdev(dev); 2932 out0: 2933 pci_disable_device(pdev); 2934 return err; 2935} 2936 2937static void __devexit hp100_pci_remove (struct pci_dev *pdev) 2938{ 2939 struct net_device *dev = pci_get_drvdata(pdev); 2940 2941 cleanup_dev(dev); 2942 pci_disable_device(pdev); 2943} 2944 2945 2946static struct pci_driver hp100_pci_driver = { 2947 .name = "hp100", 2948 .id_table = hp100_pci_tbl, 2949 .probe = hp100_pci_probe, 2950 .remove = __devexit_p(hp100_pci_remove), 2951}; 2952#endif 2953 2954/* 2955 * module section 2956 */ 2957 2958MODULE_LICENSE("GPL"); 2959MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, " 2960 "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); 2961MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); 2962 2963/* 2964 * Note: to register three isa devices, use: 2965 * option hp100 hp100_port=0,0,0 2966 * to register one card at io 0x280 as eth239, use: 2967 * option hp100 hp100_port=0x280 2968 */ 2969#if defined(MODULE) && defined(CONFIG_ISA) 2970#define HP100_DEVICES 5 2971/* Parameters set by insmod */ 2972static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; 2973module_param_array(hp100_port, int, NULL, 0); 2974 2975/* List of devices */ 2976static struct net_device *hp100_devlist[HP100_DEVICES]; 2977 2978static int __init hp100_isa_init(void) 2979{ 2980 struct net_device *dev; 2981 int i, err, cards = 0; 2982 2983 /* Don't autoprobe ISA bus */ 2984 if (hp100_port[0] == 0) 2985 return -ENODEV; 2986 2987 /* Loop on all possible base addresses */ 2988 for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { 2989 dev = alloc_etherdev(sizeof(struct hp100_private)); 2990 if (!dev) { 2991 printk(KERN_WARNING "hp100: no memory for network device\n"); 2992 while (cards > 0) 2993 cleanup_dev(hp100_devlist[--cards]); 2994 2995 return -ENOMEM; 2996 } 2997 2998 err = hp100_isa_probe(dev, hp100_port[i]); 2999 if (!err) 3000 hp100_devlist[cards++] = dev; 3001 else 3002 free_netdev(dev); 3003 } 3004 3005 return cards > 0 ? 0 : -ENODEV; 3006} 3007 3008static void hp100_isa_cleanup(void) 3009{ 3010 int i; 3011 3012 for (i = 0; i < HP100_DEVICES; i++) { 3013 struct net_device *dev = hp100_devlist[i]; 3014 if (dev) 3015 cleanup_dev(dev); 3016 } 3017} 3018#else 3019#define hp100_isa_init() (0) 3020#define hp100_isa_cleanup() do { } while(0) 3021#endif 3022 3023static int __init hp100_module_init(void) 3024{ 3025 int err; 3026 3027 err = hp100_isa_init(); 3028 if (err && err != -ENODEV) 3029 goto out; 3030#ifdef CONFIG_EISA 3031 err = eisa_driver_register(&hp100_eisa_driver); 3032 if (err && err != -ENODEV) 3033 goto out2; 3034#endif 3035#ifdef CONFIG_PCI 3036 err = pci_register_driver(&hp100_pci_driver); 3037 if (err && err != -ENODEV) 3038 goto out3; 3039#endif 3040 out: 3041 return err; 3042 out3: 3043#ifdef CONFIG_EISA 3044 eisa_driver_unregister (&hp100_eisa_driver); 3045 out2: 3046#endif 3047 hp100_isa_cleanup(); 3048 goto out; 3049} 3050 3051 3052static void __exit hp100_module_exit(void) 3053{ 3054 hp100_isa_cleanup(); 3055#ifdef CONFIG_EISA 3056 eisa_driver_unregister (&hp100_eisa_driver); 3057#endif 3058#ifdef CONFIG_PCI 3059 pci_unregister_driver (&hp100_pci_driver); 3060#endif 3061} 3062 3063module_init(hp100_module_init) 3064module_exit(hp100_module_exit) 3065