3 ** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters
5 ** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $
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>
11 ** Maintained by: Jaroslav Kysela <perex@suse.cz>
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 J2970 10 Mbit/s PCI Combo 10base-T/BNC
17 ** -- HP J2973 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
22 ** but it should also work with the other CASCADE based adapters.
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
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.
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.
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.
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)
53 ** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
54 ** - release resources on failure in init_module
56 ** 1.57 -> 1.57b - Jean II
57 ** - fix spinlocks, SMP is now working !
60 ** - updates for new PCI interface for 2.1 kernels
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
67 ** - included fix for Compex FreedomLine PCI adapter
70 ** - fixed bad initialization in init_module
71 ** - added Compex FreedomLine adapter
72 ** - some fixes in card initialization
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
82 ** - fixed bug in multicast support
86 #define HP100_DEFAULT_PRIORITY_TX 0
89 #undef HP100_DEBUG_B /* Trace */
90 #undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */
92 #undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */
94 #undef HP100_DEBUG_IRQ
97 #undef HP100_MULTICAST_FILTER /* Need to be debugged... */
99 #include <linux/version.h>
100 #include <linux/module.h>
101 #include <linux/kernel.h>
102 #include <linux/string.h>
103 #include <linux/errno.h>
104 #include <linux/ioport.h>
105 #include <linux/slab.h>
106 #include <linux/interrupt.h>
107 #include <linux/eisa.h>
108 #include <linux/pci.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/config.h> /* for CONFIG_PCI */
115 #include <linux/delay.h>
116 #include <linux/init.h>
118 #include <asm/bitops.h>
127 #define HP100_BUS_ISA 0
128 #define HP100_BUS_EISA 1
129 #define HP100_BUS_PCI 2
131 #define HP100_REGION_SIZE 0x20 /* for ioports */
132 #define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */
134 #define HP100_MAX_PACKET_SIZE (1536+4)
135 #define HP100_MIN_PACKET_SIZE 60
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
142 #ifndef HP100_DEFAULT_PRIORITY_TX
143 /* default - don't enable transmit outgoing packets as priority */
144 #define HP100_DEFAULT_PRIORITY_TX 0
151 struct hp100_private {
153 char id[HP100_SIG_LEN];
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 */
162 struct pci_dev *pci_dev;
163 short mem_mapped; /* memory mapped access */
164 void *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? */
170 u_char hash_bytes[8];
171 struct net_device_stats stats;
173 /* Rings for busmaster mode: */
174 hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */
175 hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */
176 hp100_ring_t *txrhead; /* Head (oldest) index into txring */
177 hp100_ring_t *txrtail; /* Tail (newest) index into txring */
179 hp100_ring_t rxring[MAX_RX_PDL];
180 hp100_ring_t txring[MAX_TX_PDL];
182 u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */
183 u_long whatever_offset; /* Offset to bus/phys/dma address */
184 int rxrcommit; /* # Rx PDLs commited to adapter */
185 int txrcommit; /* # Tx PDLs commited to adapter */
191 static const char *hp100_isa_tbl[] = {
192 "HWPF150", /* HP J2573 rev A */
193 "HWP1950", /* HP J2573 */
197 static struct eisa_device_id hp100_eisa_tbl[] = {
198 { "HWPF180" }, /* HP J2577 rev A */
199 { "HWP1920" }, /* HP 27248B */
200 { "HWP1940" }, /* HP J2577 */
201 { "HWP1990" }, /* HP J2577 */
202 { "CPX0301" }, /* ReadyLink ENET100-VG4 */
203 { "CPX0401" }, /* FreedomLine 100/VG */
204 { "" } /* Mandatory final entry ! */
206 MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl);
210 static struct pci_device_id hp100_pci_tbl[] = {
211 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,},
212 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,},
213 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,},
214 {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,},
215 {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,},
216 {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,},
217 /* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */
218 {} /* Terminating entry */
220 MODULE_DEVICE_TABLE(pci, hp100_pci_tbl);
223 static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
224 static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
225 static int hp100_mode = 1;
227 MODULE_PARM(hp100_rx_ratio, "1i");
228 MODULE_PARM(hp100_priority_tx, "1i");
229 MODULE_PARM(hp100_mode, "1i");
235 static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus,
236 struct pci_dev *pci_dev);
239 static int hp100_open(struct net_device *dev);
240 static int hp100_close(struct net_device *dev);
241 static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev);
242 static int hp100_start_xmit_bm(struct sk_buff *skb,
243 struct net_device *dev);
244 static void hp100_rx(struct net_device *dev);
245 static struct net_device_stats *hp100_get_stats(struct net_device *dev);
246 static void hp100_misc_interrupt(struct net_device *dev);
247 static void hp100_update_stats(struct net_device *dev);
248 static void hp100_clear_stats(struct hp100_private *lp, int ioaddr);
249 static void hp100_set_multicast_list(struct net_device *dev);
250 static irqreturn_t hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs);
251 static void hp100_start_interface(struct net_device *dev);
252 static void hp100_stop_interface(struct net_device *dev);
253 static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr);
254 static int hp100_sense_lan(struct net_device *dev);
255 static int hp100_login_to_vg_hub(struct net_device *dev,
256 u_short force_relogin);
257 static int hp100_down_vg_link(struct net_device *dev);
258 static void hp100_cascade_reset(struct net_device *dev, u_short enable);
259 static void hp100_BM_shutdown(struct net_device *dev);
260 static void hp100_mmuinit(struct net_device *dev);
261 static void hp100_init_pdls(struct net_device *dev);
262 static int hp100_init_rxpdl(struct net_device *dev,
263 register hp100_ring_t * ringptr,
264 register u_int * pdlptr);
265 static int hp100_init_txpdl(struct net_device *dev,
266 register hp100_ring_t * ringptr,
267 register u_int * pdlptr);
268 static void hp100_rxfill(struct net_device *dev);
269 static void hp100_hwinit(struct net_device *dev);
270 static void hp100_clean_txring(struct net_device *dev);
272 static void hp100_RegisterDump(struct net_device *dev);
275 /* Conversion to new PCI API :
276 * Convert an address in a kernel buffer to a bus/phys/dma address.
277 * This work *only* for memory fragments part of lp->page_vaddr,
278 * because it was properly DMA allocated via pci_alloc_consistent(),
279 * so we just need to "retreive" the original mapping to bus/phys/dma
280 * address - Jean II */
281 static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr)
283 return ((u_long) ptr) +
284 ((struct hp100_private *) (dev->priv))->whatever_offset;
287 /* TODO: This function should not really be needed in a good design... */
288 static void wait(void)
295 * These functions should - if possible - avoid doing write operations
296 * since this could cause problems when the card is not installed.
300 * Read board id and convert to string.
301 * Effectively same code as decode_eisa_sig
303 static __init const char *hp100_read_id(int ioaddr)
306 static char str[HP100_SIG_LEN];
307 unsigned char sig[4], sum;
310 hp100_page(ID_MAC_ADDR);
312 for (i = 0; i < 4; i++) {
313 sig[i] = hp100_inb(BOARD_ID + i);
317 sum += hp100_inb(BOARD_ID + i);
319 return NULL; /* bad checksum */
321 str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1);
322 str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1);
323 str[2] = (sig[1] & 0x1f) + ('A' - 1);
324 rev = (sig[2] << 8) | sig[3];
325 sprintf(str + 3, "%04X", rev);
330 static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr)
335 if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100"))
338 if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) {
339 release_region(ioaddr, HP100_REGION_SIZE);
343 sig = hp100_read_id(ioaddr);
344 release_region(ioaddr, HP100_REGION_SIZE);
349 for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) {
350 if (!strcmp(hp100_isa_tbl[i], sig))
355 if (i < ARRAY_SIZE(hp100_isa_tbl))
356 return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL);
362 * Probe for ISA board.
363 * EISA and PCI are handled by device infrastructure.
366 static int __init hp100_isa_probe(struct net_device *dev, int addr)
370 /* Probe for a specific ISA address */
371 if (addr > 0xff && addr < 0x400)
372 err = hp100_isa_probe1(dev, addr);
378 /* Probe all ISA possible port regions */
379 for (addr = 0x100; addr < 0x400; addr += 0x20) {
380 err = hp100_isa_probe1(dev, addr);
389 struct net_device * __init hp100_probe(int unit)
391 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
395 return ERR_PTR(-ENODEV);
397 SET_MODULE_OWNER(dev);
400 hp100_outw(0x4200, TRACE);
401 printk("hp100: %s: probe\n", dev->name);
405 sprintf(dev->name, "eth%d", unit);
406 netdev_boot_setup_check(dev);
409 err = hp100_isa_probe(dev, dev->base_addr);
413 err = register_netdev(dev);
418 release_region(dev->base_addr, HP100_REGION_SIZE);
424 static int __init hp100_probe1(struct net_device *dev, int ioaddr,
425 u_char bus, struct pci_dev *pci_dev)
432 u_int memory_size = 0, virt_memory_size = 0;
433 u_short local_mode, lsw;
435 unsigned long mem_ptr_phys;
437 struct hp100_private *lp;
440 hp100_outw(0x4201, TRACE);
441 printk("hp100: %s: probe1\n", dev->name);
444 /* memory region for programmed i/o */
445 if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100"))
448 if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE)
451 chip = hp100_inw(PAGING) & HP100_CHIPID_MASK;
453 if (chip == HP100_CHIPID_SHASTA)
454 printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name);
455 else if (chip == HP100_CHIPID_RAINIER)
456 printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name);
457 else if (chip == HP100_CHIPID_LASSEN)
458 printk("hp100: %s: Lassen Chip detected.\n", dev->name);
460 printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip);
463 dev->base_addr = ioaddr;
465 eid = hp100_read_id(ioaddr);
466 if (eid == NULL) { /* bad checksum? */
467 printk(KERN_WARNING "hp100_probe: bad ID checksum at base port 0x%x\n", ioaddr);
471 hp100_page(ID_MAC_ADDR);
472 for (i = uc = 0; i < 7; i++)
473 uc += hp100_inb(LAN_ADDR + i);
475 printk(KERN_WARNING "hp100_probe: bad lan address checksum at port 0x%x)\n", ioaddr);
480 /* Make sure, that all registers are correctly updated... */
482 hp100_load_eeprom(dev, ioaddr);
486 * Determine driver operation mode
488 * Use the variable "hp100_mode" upon insmod or as kernel parameter to
489 * force driver modes:
490 * hp100_mode=1 -> default, use busmaster mode if configured.
491 * hp100_mode=2 -> enable shared memory mode
492 * hp100_mode=3 -> force use of i/o mapped mode.
493 * hp100_mode=4 -> same as 1, but re-set the enable bit on the card.
498 * 0x2278 -> J2585B, PnP shared memory mode
499 * 0x2270 -> J2585B, shared memory mode, 0xdc000
500 * 0xa23c -> J2585B, I/O mapped mode
501 * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip)
502 * 0x2220 -> EISA HP, I/O (Shasta Chip)
503 * 0x2260 -> EISA HP, BusMaster (Shasta Chip)
508 hp100_outw(0xfefe, OPTION_LSW);
509 hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW);
512 /* hp100_mode value maybe used in future by another card */
513 local_mode = hp100_mode;
514 if (local_mode < 1 || local_mode > 4)
515 local_mode = 1; /* default */
517 printk("hp100: %s: original LSW = 0x%x\n", dev->name,
518 hp100_inw(OPTION_LSW));
521 if (local_mode == 3) {
522 hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW);
523 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
524 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
525 printk("hp100: IO mapped mode forced.\n");
526 } else if (local_mode == 2) {
527 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
528 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
529 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
530 printk("hp100: Shared memory mode requested.\n");
531 } else if (local_mode == 4) {
532 if (chip == HP100_CHIPID_LASSEN) {
533 hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW);
534 hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW);
535 printk("hp100: Busmaster mode requested.\n");
540 if (local_mode == 1) { /* default behaviour */
541 lsw = hp100_inw(OPTION_LSW);
543 if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) &&
544 (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) {
546 printk("hp100: %s: IO_EN bit is set on card.\n", dev->name);
549 } else if (chip == HP100_CHIPID_LASSEN &&
550 (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) {
551 /* Conversion to new PCI API :
552 * I don't have the doc, but I assume that the card
553 * can map the full 32bit address space.
554 * Also, we can have EISA Busmaster cards (not tested),
555 * so beware !!! - Jean II */
556 if((bus == HP100_BUS_PCI) &&
557 (pci_set_dma_mask(pci_dev, 0xffffffff))) {
558 /* Gracefully fallback to shared memory */
561 printk("hp100: Busmaster mode enabled.\n");
562 hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
566 printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name);
567 printk("hp100: %s: Trying shared memory mode.\n", dev->name);
569 /* In this case, try shared memory mode */
571 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
572 /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */
576 printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW));
579 /* Check for shared memory on the card, eventually remap it */
581 mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0);
584 memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07));
585 virt_memory_size = 0;
587 /* For memory mapped or busmaster mode, we want the memory address */
588 if (mem_mapped || (local_mode == 1)) {
589 mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16));
590 mem_ptr_phys &= ~0x1fff; /* 8k alignment */
592 if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) {
593 printk("hp100: Can only use programmed i/o mode.\n");
596 local_mode = 3; /* Use programmed i/o */
599 /* We do not need access to shared memory in busmaster mode */
600 /* However in slave mode we need to remap high (>1GB) card memory */
601 if (local_mode != 1) { /* = not busmaster */
602 /* We try with smaller memory sizes, if ioremap fails */
603 for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) {
604 if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) {
606 printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys);
610 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);
616 if (mem_ptr_virt == NULL) { /* all ioremap tries failed */
617 printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n");
619 virt_memory_size = 0;
624 if (local_mode == 3) { /* io mapped forced */
628 printk("hp100: Using (slow) programmed i/o mode.\n");
631 /* Initialise the "private" data structure for this card. */
632 lp = (struct hp100_private *) dev->priv;
634 spin_lock_init(&lp->lock);
635 strlcpy(lp->id, eid, HP100_SIG_LEN);
637 lp->mode = local_mode;
639 lp->pci_dev = pci_dev;
640 lp->priority_tx = hp100_priority_tx;
641 lp->rx_ratio = hp100_rx_ratio;
642 lp->mem_ptr_phys = mem_ptr_phys;
643 lp->mem_ptr_virt = mem_ptr_virt;
644 hp100_page(ID_MAC_ADDR);
645 lp->soft_model = hp100_inb(SOFT_MODEL);
646 lp->mac1_mode = HP100_MAC1MODE3;
647 lp->mac2_mode = HP100_MAC2MODE3;
648 memset(&lp->hash_bytes, 0x00, 8);
650 dev->base_addr = ioaddr;
652 lp->memory_size = memory_size;
653 lp->virt_memory_size = virt_memory_size;
654 lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */
656 dev->open = hp100_open;
657 dev->stop = hp100_close;
659 if (lp->mode == 1) /* busmaster */
660 dev->hard_start_xmit = hp100_start_xmit_bm;
662 dev->hard_start_xmit = hp100_start_xmit;
664 dev->get_stats = hp100_get_stats;
665 dev->set_multicast_list = &hp100_set_multicast_list;
667 /* Ask the card for which IRQ line it is configured */
668 if (bus == HP100_BUS_PCI) {
669 dev->irq = pci_dev->irq;
672 dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK;
677 if (lp->mode == 1) /* busmaster */
680 /* Ask the card for its MAC address and store it for later use. */
681 hp100_page(ID_MAC_ADDR);
682 for (i = uc = 0; i < 6; i++)
683 dev->dev_addr[i] = hp100_inb(LAN_ADDR + i);
685 /* Reset statistics (counters) */
686 hp100_clear_stats(lp, ioaddr);
688 /* If busmaster mode is wanted, a dma-capable memory area is needed for
690 * PCI cards can access the whole PC memory. Therefore GFP_DMA is not
691 * needed for the allocation of the memory area.
694 /* TODO: We do not need this with old cards, where PDLs are stored
695 * in the cards shared memory area. But currently, busmaster has been
696 * implemented/tested only with the lassen chip anyway... */
697 if (lp->mode == 1) { /* busmaster */
698 dma_addr_t page_baddr;
699 /* Get physically continous memory for TX & RX PDLs */
700 /* Conversion to new PCI API :
701 * Pages are always aligned and zeroed, no need to it ourself.
702 * Doc says should be OK for EISA bus as well - Jean II */
703 if ((lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr)) == NULL) {
707 lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn);
709 #ifdef HP100_DEBUG_BM
710 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);
712 lp->rxrcommit = lp->txrcommit = 0;
713 lp->rxrhead = lp->rxrtail = &(lp->rxring[0]);
714 lp->txrhead = lp->txrtail = &(lp->txring[0]);
717 /* Initialise the card. */
718 /* (I'm not really sure if it's a good idea to do this during probing, but
719 * like this it's assured that the lan connection type can be sensed
724 /* Try to find out which kind of LAN the card is connected to. */
725 lp->lan_type = hp100_sense_lan(dev);
727 /* Print out a message what about what we think we have probed. */
728 printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq);
740 printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio);
742 if (lp->mode == 2) { /* memory mapped */
743 printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys,
744 (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1);
746 printk(" (virtual base %p)", mem_ptr_virt);
749 /* Set for info when doing ifconfig */
750 dev->mem_start = mem_ptr_phys;
751 dev->mem_end = mem_ptr_phys + lp->memory_size;
755 if (lp->lan_type != HP100_LAN_ERR)
756 printk("Adapter is attached to ");
757 switch (lp->lan_type) {
759 printk("100Mb/s Voice Grade AnyLAN network.\n");
762 printk("10Mb/s network (10baseT).\n");
765 printk("10Mb/s network (coax).\n");
768 printk("Warning! Link down.\n");
773 release_region(ioaddr, HP100_REGION_SIZE);
778 /* This procedure puts the card into a stable init state */
779 static void hp100_hwinit(struct net_device *dev)
781 int ioaddr = dev->base_addr;
782 struct hp100_private *lp = (struct hp100_private *) dev->priv;
785 hp100_outw(0x4202, TRACE);
786 printk("hp100: %s: hwinit\n", dev->name);
789 /* Initialise the card. -------------------------------------------- */
791 /* Clear all pending Ints and disable Ints */
792 hp100_page(PERFORMANCE);
793 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
794 hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */
796 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
797 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW);
800 hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */
803 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
804 hp100_cascade_reset(dev, 1);
805 hp100_page(MAC_CTRL);
806 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1);
809 /* Initiate EEPROM reload */
810 hp100_load_eeprom(dev, 0);
814 /* Go into reset again. */
815 hp100_cascade_reset(dev, 1);
817 /* Set Option Registers to a safe state */
818 hp100_outw(HP100_DEBUG_EN |
822 HP100_BM_READ | HP100_RESET_HB |
826 HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
828 hp100_outw(HP100_TRI_INT |
829 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW);
831 hp100_outb(HP100_PRIORITY_TX |
833 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW);
835 /* TODO: Configure MMU for Ram Test. */
836 /* TODO: Ram Test. */
838 /* Re-check if adapter is still at same i/o location */
839 /* (If the base i/o in eeprom has been changed but the */
840 /* registers had not been changed, a reload of the eeprom */
841 /* would move the adapter to the address stored in eeprom */
843 /* TODO: Code to implement. */
845 /* Until here it was code from HWdiscover procedure. */
846 /* Next comes code from mmuinit procedure of SCO BM driver which is
847 * called from HWconfigure in the SCO driver. */
849 /* Initialise MMU, eventually switch on Busmaster Mode, initialise
850 * multicast filter...
854 /* We don't turn the interrupts on here - this is done by start_interface. */
855 wait(); /* TODO: Do we really need this? */
857 /* Enable Hardware (e.g. unreset) */
858 hp100_cascade_reset(dev, 0);
860 /* ------- initialisation complete ----------- */
862 /* Finally try to log in the Hub if there may be a VG connection. */
863 if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR))
864 hp100_login_to_vg_hub(dev, 0); /* relogin */
870 * mmuinit - Reinitialise Cascade MMU and MAC settings.
871 * Note: Must already be in reset and leaves card in reset.
873 static void hp100_mmuinit(struct net_device *dev)
875 int ioaddr = dev->base_addr;
876 struct hp100_private *lp = (struct hp100_private *) dev->priv;
880 hp100_outw(0x4203, TRACE);
881 printk("hp100: %s: mmuinit\n", dev->name);
885 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) {
886 printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name);
891 /* Make sure IRQs are masked off and ack'ed. */
892 hp100_page(PERFORMANCE);
893 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
894 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
898 * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En
899 * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable
900 * - Clear Priority, Advance Pkt and Xmit Cmd
903 hp100_outw(HP100_DEBUG_EN |
905 HP100_EE_EN | HP100_RESET_HB |
908 HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
910 hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW);
912 if (lp->mode == 1) { /* busmaster */
913 hp100_outw(HP100_BM_WRITE |
915 HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW);
916 } else if (lp->mode == 2) { /* memory mapped */
917 hp100_outw(HP100_BM_WRITE |
918 HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
919 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW);
920 hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
921 hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
922 } else if (lp->mode == 3) { /* i/o mapped mode */
923 hp100_outw(HP100_MMAP_DIS | HP100_SET_HB |
924 HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
928 hp100_outb(0, EARLYRXCFG);
929 hp100_outw(0, EARLYTXCFG);
932 * Enable Bus Master mode
934 if (lp->mode == 1) { /* busmaster */
935 /* Experimental: Set some PCI configuration bits */
937 hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */
938 hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */
940 /* PCI Bus failures should result in a Misc. Interrupt */
941 hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2);
943 hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW);
945 /* Use Burst Mode and switch on PAGE_CK */
946 hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM);
947 if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA))
948 hp100_orb(HP100_BM_PAGE_CK, BM);
949 hp100_orb(HP100_BM_MASTER, BM);
950 } else { /* not busmaster */
953 hp100_andb(~HP100_BM_MASTER, BM);
957 * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs
960 if (lp->mode == 1) { /* only needed for Busmaster */
961 int xmit_stop, recv_stop;
963 if ((lp->chip == HP100_CHIPID_RAINIER)
964 || (lp->chip == HP100_CHIPID_SHASTA)) {
968 * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and
969 * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded
970 * to the next higher 1k boundary) bytes for the rx-pdl's
971 * Note: For non-etr chips the transmit stop register must be
972 * programmed on a 1k boundary, i.e. bits 9:0 must be zero.
974 pdl_stop = lp->memory_size;
975 xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff);
976 recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff);
977 hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP);
978 #ifdef HP100_DEBUG_BM
979 printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop);
982 /* ETR chip (Lassen) in busmaster mode */
983 xmit_stop = (lp->memory_size) - 1;
984 recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff);
987 hp100_outw(xmit_stop >> 4, TX_MEM_STOP);
988 hp100_outw(recv_stop >> 4, RX_MEM_STOP);
989 #ifdef HP100_DEBUG_BM
990 printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4);
991 printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4);
994 /* Slave modes (memory mapped and programmed io) */
995 hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP);
996 hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP);
998 printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP));
999 printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP));
1003 /* Write MAC address into page 1 */
1004 hp100_page(MAC_ADDRESS);
1005 for (i = 0; i < 6; i++)
1006 hp100_outb(dev->dev_addr[i], MAC_ADDR + i);
1008 /* Zero the multicast hash registers */
1009 for (i = 0; i < 8; i++)
1010 hp100_outb(0x0, HASH_BYTE0 + i);
1012 /* Set up MAC defaults */
1013 hp100_page(MAC_CTRL);
1015 /* Go to LAN Page and zero all filter bits */
1016 /* Zero accept error, accept multicast, accept broadcast and accept */
1017 /* all directed packet bits */
1018 hp100_andb(~(HP100_RX_EN |
1022 HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1);
1024 hp100_outb(0x00, MAC_CFG_2);
1026 /* Zero the frame format bit. This works around a training bug in the */
1028 hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */
1030 if (lp->priority_tx)
1031 hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW);
1033 hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW);
1035 hp100_outb(HP100_ADV_NXT_PKT |
1036 HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW);
1038 /* If busmaster, initialize the PDLs */
1040 hp100_init_pdls(dev);
1042 /* Go to performance page and initalize isr and imr registers */
1043 hp100_page(PERFORMANCE);
1044 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
1045 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
1049 * open/close functions
1052 static int hp100_open(struct net_device *dev)
1054 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1055 #ifdef HP100_DEBUG_B
1056 int ioaddr = dev->base_addr;
1059 #ifdef HP100_DEBUG_B
1060 hp100_outw(0x4204, TRACE);
1061 printk("hp100: %s: open\n", dev->name);
1064 /* New: if bus is PCI or EISA, interrupts might be shared interrupts */
1065 if (request_irq(dev->irq, hp100_interrupt,
1066 lp->bus == HP100_BUS_PCI || lp->bus ==
1067 HP100_BUS_EISA ? SA_SHIRQ : SA_INTERRUPT,
1069 printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq);
1073 dev->trans_start = jiffies;
1074 netif_start_queue(dev);
1076 lp->lan_type = hp100_sense_lan(dev);
1077 lp->mac1_mode = HP100_MAC1MODE3;
1078 lp->mac2_mode = HP100_MAC2MODE3;
1079 memset(&lp->hash_bytes, 0x00, 8);
1081 hp100_stop_interface(dev);
1085 hp100_start_interface(dev); /* sets mac modes, enables interrupts */
1090 /* The close function is called when the interface is to be brought down */
1091 static int hp100_close(struct net_device *dev)
1093 int ioaddr = dev->base_addr;
1094 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1096 #ifdef HP100_DEBUG_B
1097 hp100_outw(0x4205, TRACE);
1098 printk("hp100: %s: close\n", dev->name);
1101 hp100_page(PERFORMANCE);
1102 hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */
1104 hp100_stop_interface(dev);
1106 if (lp->lan_type == HP100_LAN_100)
1107 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1109 netif_stop_queue(dev);
1111 free_irq(dev->irq, dev);
1114 printk("hp100: %s: close LSW = 0x%x\n", dev->name,
1115 hp100_inw(OPTION_LSW));
1123 * Configure the PDL Rx rings and LAN
1125 static void hp100_init_pdls(struct net_device *dev)
1127 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1128 hp100_ring_t *ringptr;
1129 u_int *pageptr; /* Warning : increment by 4 - Jean II */
1132 #ifdef HP100_DEBUG_B
1133 int ioaddr = dev->base_addr;
1136 #ifdef HP100_DEBUG_B
1137 hp100_outw(0x4206, TRACE);
1138 printk("hp100: %s: init pdls\n", dev->name);
1141 if (0 == lp->page_vaddr_algn)
1142 printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name);
1144 /* pageptr shall point into the DMA accessible memory region */
1145 /* we use this pointer to status the upper limit of allocated */
1146 /* memory in the allocated page. */
1147 /* note: align the pointers to the pci cache line size */
1148 memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */
1149 pageptr = lp->page_vaddr_algn;
1152 ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]);
1154 /* Initialise Rx Ring */
1155 for (i = MAX_RX_PDL - 1; i >= 0; i--) {
1156 lp->rxring[i].next = ringptr;
1157 ringptr = &(lp->rxring[i]);
1158 pageptr += hp100_init_rxpdl(dev, ringptr, pageptr);
1161 /* Initialise Tx Ring */
1163 ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]);
1164 for (i = MAX_TX_PDL - 1; i >= 0; i--) {
1165 lp->txring[i].next = ringptr;
1166 ringptr = &(lp->txring[i]);
1167 pageptr += hp100_init_txpdl(dev, ringptr, pageptr);
1173 /* These functions "format" the entries in the pdl structure */
1174 /* They return how much memory the fragments need. */
1175 static int hp100_init_rxpdl(struct net_device *dev,
1176 register hp100_ring_t * ringptr,
1177 register u32 * pdlptr)
1179 /* pdlptr is starting address for this pdl */
1181 if (0 != (((unsigned long) pdlptr) & 0xf))
1182 printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n",
1183 dev->name, (unsigned long) pdlptr);
1185 ringptr->pdl = pdlptr + 1;
1186 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1);
1187 ringptr->skb = (void *) NULL;
1190 * Write address and length of first PDL Fragment (which is used for
1191 * storing the RX-Header
1192 * We use the 4 bytes _before_ the PDH in the pdl memory area to
1193 * store this information. (PDH is at offset 0x04)
1195 /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */
1197 *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */
1198 *(pdlptr + 3) = 4; /* Length Frag 1 */
1200 return ((((MAX_RX_FRAG * 2 + 2) + 3) / 4) * 4);
1204 static int hp100_init_txpdl(struct net_device *dev,
1205 register hp100_ring_t * ringptr,
1206 register u32 * pdlptr)
1208 if (0 != (((unsigned long) pdlptr) & 0xf))
1209 printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr);
1211 ringptr->pdl = pdlptr; /* +1; */
1212 ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */
1213 ringptr->skb = (void *) NULL;
1215 return ((((MAX_TX_FRAG * 2 + 2) + 3) / 4) * 4);
1219 * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes
1220 * for possible odd word alignment rounding up to next dword and set PDL
1221 * address for fragment#2
1222 * Returns: 0 if unable to allocate skb_buff
1225 static int hp100_build_rx_pdl(hp100_ring_t * ringptr,
1226 struct net_device *dev)
1228 #ifdef HP100_DEBUG_B
1229 int ioaddr = dev->base_addr;
1231 #ifdef HP100_DEBUG_BM
1235 #ifdef HP100_DEBUG_B
1236 hp100_outw(0x4207, TRACE);
1237 printk("hp100: %s: build rx pdl\n", dev->name);
1240 /* Allocate skb buffer of maximum size */
1241 /* Note: This depends on the alloc_skb functions allocating more
1242 * space than requested, i.e. aligning to 16bytes */
1244 ringptr->skb = dev_alloc_skb(((MAX_ETHER_SIZE + 2 + 3) / 4) * 4);
1246 if (NULL != ringptr->skb) {
1248 * Reserve 2 bytes at the head of the buffer to land the IP header
1249 * on a long word boundary (According to the Network Driver section
1250 * in the Linux KHG, this should help to increase performance.)
1252 skb_reserve(ringptr->skb, 2);
1254 ringptr->skb->dev = dev;
1255 ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE);
1257 /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */
1258 /* Note: 1st Fragment is used for the 4 byte packet status
1259 * (receive header). Its PDL entries are set up by init_rxpdl. So
1260 * here we only have to set up the PDL fragment entries for the data
1261 * part. Those 4 bytes will be stored in the DMA memory region
1262 * directly before the PDL.
1264 #ifdef HP100_DEBUG_BM
1265 printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n",
1266 dev->name, (u_int) ringptr->pdl,
1267 ((MAX_ETHER_SIZE + 2 + 3) / 4) * 4,
1268 (unsigned int) ringptr->skb->data);
1271 /* Conversion to new PCI API : map skbuf data to PCI bus.
1272 * Doc says it's OK for EISA as well - Jean II */
1273 ringptr->pdl[0] = 0x00020000; /* Write PDH */
1274 ringptr->pdl[3] = ((u_int) pci_map_single(((struct hp100_private *) (dev->priv))->pci_dev, ringptr->skb->data, MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE));
1275 ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */
1277 #ifdef HP100_DEBUG_BM
1278 for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++)
1279 printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p);
1284 /* alloc_skb failed (no memory) -> still can receive the header
1285 * fragment into PDL memory. make PDL safe by clearing msgptr and
1286 * making the PDL only 1 fragment (i.e. the 4 byte packet status)
1288 #ifdef HP100_DEBUG_BM
1289 printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl);
1292 ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */
1298 * hp100_rxfill - attempt to fill the Rx Ring will empty skb's
1300 * Makes assumption that skb's are always contiguous memory areas and
1301 * therefore PDLs contain only 2 physical fragments.
1302 * - While the number of Rx PDLs with buffers is less than maximum
1303 * a. Get a maximum packet size skb
1304 * b. Put the physical address of the buffer into the PDL.
1305 * c. Output physical address of PDL to adapter.
1307 static void hp100_rxfill(struct net_device *dev)
1309 int ioaddr = dev->base_addr;
1311 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1312 hp100_ring_t *ringptr;
1314 #ifdef HP100_DEBUG_B
1315 hp100_outw(0x4208, TRACE);
1316 printk("hp100: %s: rxfill\n", dev->name);
1319 hp100_page(PERFORMANCE);
1321 while (lp->rxrcommit < MAX_RX_PDL) {
1323 ** Attempt to get a buffer and build a Rx PDL.
1325 ringptr = lp->rxrtail;
1326 if (0 == hp100_build_rx_pdl(ringptr, dev)) {
1327 return; /* None available, return */
1330 /* Hand this PDL over to the card */
1331 /* Note: This needs performance page selected! */
1332 #ifdef HP100_DEBUG_BM
1333 printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n",
1334 dev->name, lp->rxrcommit, (u_int) ringptr->pdl,
1335 (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]);
1338 hp100_outl((u32) ringptr->pdl_paddr, RX_PDA);
1341 lp->rxrtail = ringptr->next;
1346 * BM_shutdown - shutdown bus mastering and leave chip in reset state
1349 static void hp100_BM_shutdown(struct net_device *dev)
1351 int ioaddr = dev->base_addr;
1352 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1355 #ifdef HP100_DEBUG_B
1356 hp100_outw(0x4209, TRACE);
1357 printk("hp100: %s: bm shutdown\n", dev->name);
1360 hp100_page(PERFORMANCE);
1361 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
1362 hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */
1364 /* Ensure Interrupts are off */
1365 hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
1367 /* Disable all MAC activity */
1368 hp100_page(MAC_CTRL);
1369 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */
1371 /* If cascade MMU is not already in reset */
1372 if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) {
1373 /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so
1374 * MMU pointers will not be reset out from underneath
1376 hp100_page(MAC_CTRL);
1377 for (time = 0; time < 5000; time++) {
1378 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE))
1382 /* Shutdown algorithm depends on the generation of Cascade */
1383 if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */
1384 /* Disable Busmaster mode and wait for bit to go to zero. */
1386 hp100_andb(~HP100_BM_MASTER, BM);
1387 /* 100 ms timeout */
1388 for (time = 0; time < 32000; time++) {
1389 if (0 == (hp100_inb(BM) & HP100_BM_MASTER))
1392 } else { /* Shasta or Rainier Shutdown/Reset */
1393 /* To ensure all bus master inloading activity has ceased,
1394 * wait for no Rx PDAs or no Rx packets on card.
1396 hp100_page(PERFORMANCE);
1397 /* 100 ms timeout */
1398 for (time = 0; time < 10000; time++) {
1399 /* RX_PDL: PDLs not executed. */
1400 /* RX_PKT_CNT: RX'd packets on card. */
1401 if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0))
1406 printk("hp100: %s: BM shutdown error.\n", dev->name);
1408 /* To ensure all bus master outloading activity has ceased,
1409 * wait until the Tx PDA count goes to zero or no more Tx space
1410 * available in the Tx region of the card.
1412 /* 100 ms timeout */
1413 for (time = 0; time < 10000; time++) {
1414 if ((0 == hp100_inb(TX_PKT_CNT)) &&
1415 (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE)))
1419 /* Disable Busmaster mode */
1421 hp100_andb(~HP100_BM_MASTER, BM);
1422 } /* end of shutdown procedure for non-etr parts */
1424 hp100_cascade_reset(dev, 1);
1426 hp100_page(PERFORMANCE);
1427 /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */
1428 /* Busmaster mode should be shut down now. */
1431 static int hp100_check_lan(struct net_device *dev)
1433 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1435 if (lp->lan_type < 0) { /* no LAN type detected yet? */
1436 hp100_stop_interface(dev);
1437 if ((lp->lan_type = hp100_sense_lan(dev)) < 0) {
1438 printk("hp100: %s: no connection found - check wire\n", dev->name);
1439 hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */
1442 if (lp->lan_type == HP100_LAN_100)
1443 lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */
1444 hp100_start_interface(dev);
1450 * transmit functions
1453 /* tx function for busmaster mode */
1454 static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev)
1456 unsigned long flags;
1458 int ioaddr = dev->base_addr;
1459 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1460 hp100_ring_t *ringptr;
1462 #ifdef HP100_DEBUG_B
1463 hp100_outw(0x4210, TRACE);
1464 printk("hp100: %s: start_xmit_bm\n", dev->name);
1474 if (skb->len < ETH_ZLEN && lp->chip == HP100_CHIPID_SHASTA) {
1475 skb = skb_padto(skb, ETH_ZLEN);
1480 /* Get Tx ring tail pointer */
1481 if (lp->txrtail->next == lp->txrhead) {
1484 printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name);
1486 /* not waited long enough since last tx? */
1487 if (jiffies - dev->trans_start < HZ)
1490 if (hp100_check_lan(dev))
1493 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) {
1494 /* we have a 100Mb/s adapter but it isn't connected to hub */
1495 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name);
1496 hp100_stop_interface(dev);
1497 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1498 hp100_start_interface(dev);
1500 spin_lock_irqsave(&lp->lock, flags);
1501 hp100_ints_off(); /* Useful ? Jean II */
1502 i = hp100_sense_lan(dev);
1504 spin_unlock_irqrestore(&lp->lock, flags);
1505 if (i == HP100_LAN_ERR)
1506 printk("hp100: %s: link down detected\n", dev->name);
1507 else if (lp->lan_type != i) { /* cable change! */
1508 /* it's very hard - all network settings must be changed!!! */
1509 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name);
1511 hp100_stop_interface(dev);
1512 if (lp->lan_type == HP100_LAN_100)
1513 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1514 hp100_start_interface(dev);
1516 printk("hp100: %s: interface reset\n", dev->name);
1517 hp100_stop_interface(dev);
1518 if (lp->lan_type == HP100_LAN_100)
1519 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1520 hp100_start_interface(dev);
1524 dev->trans_start = jiffies;
1529 * we have to turn int's off before modifying this, otherwise
1530 * a tx_pdl_cleanup could occur at the same time
1532 spin_lock_irqsave(&lp->lock, flags);
1533 ringptr = lp->txrtail;
1534 lp->txrtail = ringptr->next;
1536 /* Check whether packet has minimal packet size */
1537 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
1538 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
1541 ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */
1542 if (lp->chip == HP100_CHIPID_SHASTA) {
1543 /* TODO:Could someone who has the EISA card please check if this works? */
1544 ringptr->pdl[2] = i;
1545 } else { /* Lassen */
1546 /* In the PDL, don't use the padded size but the real packet size: */
1547 ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */
1549 /* Conversion to new PCI API : map skbuf data to PCI bus.
1550 * Doc says it's OK for EISA as well - Jean II */
1551 ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */
1553 /* Hand this PDL to the card. */
1554 hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */
1557 spin_unlock_irqrestore(&lp->lock, flags);
1559 /* Update statistics */
1560 lp->stats.tx_packets++;
1561 lp->stats.tx_bytes += skb->len;
1562 dev->trans_start = jiffies;
1568 /* clean_txring checks if packets have been sent by the card by reading
1569 * the TX_PDL register from the performance page and comparing it to the
1570 * number of commited packets. It then frees the skb's of the packets that
1571 * obviously have been sent to the network.
1573 * Needs the PERFORMANCE page selected.
1575 static void hp100_clean_txring(struct net_device *dev)
1577 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1578 int ioaddr = dev->base_addr;
1581 #ifdef HP100_DEBUG_B
1582 hp100_outw(0x4211, TRACE);
1583 printk("hp100: %s: clean txring\n", dev->name);
1586 /* How many PDLs have been transmitted? */
1587 donecount = (lp->txrcommit) - hp100_inb(TX_PDL);
1590 if (donecount > MAX_TX_PDL)
1591 printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name);
1594 for (; 0 != donecount; donecount--) {
1595 #ifdef HP100_DEBUG_BM
1596 printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n",
1597 dev->name, (u_int) lp->txrhead->skb->data,
1598 lp->txrcommit, hp100_inb(TX_PDL), donecount);
1600 /* Conversion to new PCI API : NOP */
1601 pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE);
1602 dev_kfree_skb_any(lp->txrhead->skb);
1603 lp->txrhead->skb = (void *) NULL;
1604 lp->txrhead = lp->txrhead->next;
1609 /* tx function for slave modes */
1610 static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev)
1612 unsigned long flags;
1614 int ioaddr = dev->base_addr;
1616 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1618 #ifdef HP100_DEBUG_B
1619 hp100_outw(0x4212, TRACE);
1620 printk("hp100: %s: start_xmit\n", dev->name);
1630 if (hp100_check_lan(dev))
1633 /* If there is not enough free memory on the card... */
1634 i = hp100_inl(TX_MEM_FREE) & 0x7fffffff;
1635 if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) {
1637 printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i);
1639 /* not waited long enough since last failed tx try? */
1640 if (jiffies - dev->trans_start < HZ) {
1642 printk("hp100: %s: trans_start timing problem\n",
1647 if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) {
1648 /* we have a 100Mb/s adapter but it isn't connected to hub */
1649 printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name);
1650 hp100_stop_interface(dev);
1651 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1652 hp100_start_interface(dev);
1654 spin_lock_irqsave(&lp->lock, flags);
1655 hp100_ints_off(); /* Useful ? Jean II */
1656 i = hp100_sense_lan(dev);
1658 spin_unlock_irqrestore(&lp->lock, flags);
1659 if (i == HP100_LAN_ERR)
1660 printk("hp100: %s: link down detected\n", dev->name);
1661 else if (lp->lan_type != i) { /* cable change! */
1662 /* it's very hard - all network setting must be changed!!! */
1663 printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name);
1665 hp100_stop_interface(dev);
1666 if (lp->lan_type == HP100_LAN_100)
1667 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1668 hp100_start_interface(dev);
1670 printk("hp100: %s: interface reset\n", dev->name);
1671 hp100_stop_interface(dev);
1672 if (lp->lan_type == HP100_LAN_100)
1673 lp->hub_status = hp100_login_to_vg_hub(dev, 0);
1674 hp100_start_interface(dev);
1678 dev->trans_start = jiffies;
1682 for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) {
1683 #ifdef HP100_DEBUG_TX
1684 printk("hp100: %s: start_xmit: busy\n", dev->name);
1688 spin_lock_irqsave(&lp->lock, flags);
1690 val = hp100_inw(IRQ_STATUS);
1691 /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set
1692 * when the current packet being transmitted on the wire is completed. */
1693 hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS);
1694 #ifdef HP100_DEBUG_TX
1695 printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n",
1696 dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len);
1699 ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
1700 i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
1702 hp100_outw(i, DATA32); /* tell card the total packet length */
1703 hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */
1705 if (lp->mode == 2) { /* memory mapped */
1706 if (lp->mem_ptr_virt) { /* high pci memory was remapped */
1707 /* Note: The J2585B needs alignment to 32bits here! */
1708 memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3);
1710 memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len);
1712 /* Note: The J2585B needs alignment to 32bits here! */
1713 isa_memcpy_toio(lp->mem_ptr_phys, skb->data, (skb->len + 3) & ~3);
1715 isa_memset_io(lp->mem_ptr_phys, 0, HP100_MIN_PACKET_SIZE - skb->len);
1717 } else { /* programmed i/o */
1718 outsl(ioaddr + HP100_REG_DATA32, skb->data,
1719 (skb->len + 3) >> 2);
1721 for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4)
1722 hp100_outl(0, DATA32);
1725 hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */
1727 lp->stats.tx_packets++;
1728 lp->stats.tx_bytes += skb->len;
1729 dev->trans_start = jiffies;
1731 spin_unlock_irqrestore(&lp->lock, flags);
1733 dev_kfree_skb_any(skb);
1735 #ifdef HP100_DEBUG_TX
1736 printk("hp100: %s: start_xmit: end\n", dev->name);
1744 * Receive Function (Non-Busmaster mode)
1745 * Called when an "Receive Packet" interrupt occurs, i.e. the receive
1746 * packet counter is non-zero.
1747 * For non-busmaster, this function does the whole work of transfering
1748 * the packet to the host memory and then up to higher layers via skb
1752 static void hp100_rx(struct net_device *dev)
1754 int packets, pkt_len;
1755 int ioaddr = dev->base_addr;
1756 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1758 struct sk_buff *skb;
1761 hp100_outw(0x4213, TRACE);
1762 printk("hp100: %s: rx\n", dev->name);
1765 /* First get indication of received lan packet */
1766 /* RX_PKT_CND indicates the number of packets which have been fully */
1767 /* received onto the card but have not been fully transferred of the card */
1768 packets = hp100_inb(RX_PKT_CNT);
1769 #ifdef HP100_DEBUG_RX
1771 printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets);
1774 while (packets-- > 0) {
1775 /* If ADV_NXT_PKT is still set, we have to wait until the card has */
1776 /* really advanced to the next packet. */
1777 for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) {
1778 #ifdef HP100_DEBUG_RX
1779 printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets);
1783 /* First we get the header, which contains information about the */
1784 /* actual length of the received packet. */
1785 if (lp->mode == 2) { /* memory mapped mode */
1786 if (lp->mem_ptr_virt) /* if memory was remapped */
1787 header = readl(lp->mem_ptr_virt);
1789 header = isa_readl(lp->mem_ptr_phys);
1790 } else /* programmed i/o */
1791 header = hp100_inl(DATA32);
1793 pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3;
1795 #ifdef HP100_DEBUG_RX
1796 printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n",
1797 dev->name, header & HP100_PKT_LEN_MASK,
1798 (header >> 16) & 0xfff8, (header >> 16) & 7);
1801 /* Now we allocate the skb and transfer the data into it. */
1802 skb = dev_alloc_skb(pkt_len+2);
1803 if (skb == NULL) { /* Not enough memory->drop packet */
1805 printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n",
1806 dev->name, pkt_len);
1808 lp->stats.rx_dropped++;
1809 } else { /* skb successfully allocated */
1816 /* ptr to start of the sk_buff data area */
1817 skb_put(skb, pkt_len);
1820 /* Now transfer the data from the card into that area */
1821 if (lp->mode == 2) {
1822 if (lp->mem_ptr_virt)
1823 memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len);
1824 /* Note alignment to 32bit transfers */
1826 isa_memcpy_fromio(ptr, lp->mem_ptr_phys, pkt_len);
1827 } else /* io mapped */
1828 insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2);
1830 skb->protocol = eth_type_trans(skb, dev);
1832 #ifdef HP100_DEBUG_RX
1833 printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
1834 dev->name, ptr[0], ptr[1], ptr[2], ptr[3],
1835 ptr[4], ptr[5], ptr[6], ptr[7], ptr[8],
1836 ptr[9], ptr[10], ptr[11]);
1839 dev->last_rx = jiffies;
1840 lp->stats.rx_packets++;
1841 lp->stats.rx_bytes += pkt_len;
1844 /* Indicate the card that we have got the packet */
1845 hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW);
1847 switch (header & 0x00070000) {
1848 case (HP100_MULTI_ADDR_HASH << 16):
1849 case (HP100_MULTI_ADDR_NO_HASH << 16):
1850 lp->stats.multicast++;
1853 } /* end of while(there are packets) loop */
1854 #ifdef HP100_DEBUG_RX
1855 printk("hp100_rx: %s: end\n", dev->name);
1860 * Receive Function for Busmaster Mode
1862 static void hp100_rx_bm(struct net_device *dev)
1864 int ioaddr = dev->base_addr;
1865 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1870 #ifdef HP100_DEBUG_B
1871 hp100_outw(0x4214, TRACE);
1872 printk("hp100: %s: rx_bm\n", dev->name);
1876 if (0 == lp->rxrcommit) {
1877 printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name);
1880 /* RX_PKT_CNT states how many PDLs are currently formatted and available to
1881 * the cards BM engine */
1882 if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) {
1883 printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n",
1884 dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff,
1890 while ((lp->rxrcommit > hp100_inb(RX_PDL))) {
1892 * The packet was received into the pdl pointed to by lp->rxrhead (
1893 * the oldest pdl in the ring
1896 /* First we get the header, which contains information about the */
1897 /* actual length of the received packet. */
1901 header = *(ptr->pdl - 1);
1902 pkt_len = (header & HP100_PKT_LEN_MASK);
1904 /* Conversion to new PCI API : NOP */
1905 pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
1907 #ifdef HP100_DEBUG_BM
1908 printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n",
1909 dev->name, (u_int) (ptr->pdl - 1), (u_int) header,
1910 pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7);
1911 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",
1912 dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL),
1913 hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl),
1914 (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4));
1917 if ((pkt_len >= MIN_ETHER_SIZE) &&
1918 (pkt_len <= MAX_ETHER_SIZE)) {
1919 if (ptr->skb == NULL) {
1920 printk("hp100: %s: rx_bm: skb null\n", dev->name);
1921 /* can happen if we only allocated room for the pdh due to memory shortage. */
1922 lp->stats.rx_dropped++;
1924 skb_trim(ptr->skb, pkt_len); /* Shorten it */
1925 ptr->skb->protocol =
1926 eth_type_trans(ptr->skb, dev);
1928 netif_rx(ptr->skb); /* Up and away... */
1930 dev->last_rx = jiffies;
1931 lp->stats.rx_packets++;
1932 lp->stats.rx_bytes += pkt_len;
1935 switch (header & 0x00070000) {
1936 case (HP100_MULTI_ADDR_HASH << 16):
1937 case (HP100_MULTI_ADDR_NO_HASH << 16):
1938 lp->stats.multicast++;
1943 printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len);
1945 if (ptr->skb != NULL)
1946 dev_kfree_skb_any(ptr->skb);
1947 lp->stats.rx_errors++;
1950 lp->rxrhead = lp->rxrhead->next;
1952 /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */
1953 if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) {
1954 /* No space for skb, header can still be received. */
1956 printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name);
1959 } else { /* successfully allocated new PDL - put it in ringlist at tail. */
1960 hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA);
1961 lp->rxrtail = lp->rxrtail->next;
1970 static struct net_device_stats *hp100_get_stats(struct net_device *dev)
1972 unsigned long flags;
1973 int ioaddr = dev->base_addr;
1974 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1976 #ifdef HP100_DEBUG_B
1977 hp100_outw(0x4215, TRACE);
1980 spin_lock_irqsave(&lp->lock, flags);
1981 hp100_ints_off(); /* Useful ? Jean II */
1982 hp100_update_stats(dev);
1984 spin_unlock_irqrestore(&lp->lock, flags);
1985 return &(lp->stats);
1988 static void hp100_update_stats(struct net_device *dev)
1990 int ioaddr = dev->base_addr;
1992 struct hp100_private *lp = (struct hp100_private *) dev->priv;
1994 #ifdef HP100_DEBUG_B
1995 hp100_outw(0x4216, TRACE);
1996 printk("hp100: %s: update-stats\n", dev->name);
1999 /* Note: Statistics counters clear when read. */
2000 hp100_page(MAC_CTRL);
2001 val = hp100_inw(DROPPED) & 0x0fff;
2002 lp->stats.rx_errors += val;
2003 lp->stats.rx_over_errors += val;
2004 val = hp100_inb(CRC);
2005 lp->stats.rx_errors += val;
2006 lp->stats.rx_crc_errors += val;
2007 val = hp100_inb(ABORT);
2008 lp->stats.tx_errors += val;
2009 lp->stats.tx_aborted_errors += val;
2010 hp100_page(PERFORMANCE);
2013 static void hp100_misc_interrupt(struct net_device *dev)
2015 #ifdef HP100_DEBUG_B
2016 int ioaddr = dev->base_addr;
2018 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2020 #ifdef HP100_DEBUG_B
2021 int ioaddr = dev->base_addr;
2022 hp100_outw(0x4216, TRACE);
2023 printk("hp100: %s: misc_interrupt\n", dev->name);
2026 /* Note: Statistics counters clear when read. */
2027 lp->stats.rx_errors++;
2028 lp->stats.tx_errors++;
2031 static void hp100_clear_stats(struct hp100_private *lp, int ioaddr)
2033 unsigned long flags;
2035 #ifdef HP100_DEBUG_B
2036 hp100_outw(0x4217, TRACE);
2037 printk("hp100: %s: clear_stats\n", dev->name);
2040 spin_lock_irqsave(&lp->lock, flags);
2041 hp100_page(MAC_CTRL); /* get all statistics bytes */
2045 hp100_page(PERFORMANCE);
2046 spin_unlock_irqrestore(&lp->lock, flags);
2055 * Set or clear the multicast filter for this adapter.
2058 static void hp100_set_multicast_list(struct net_device *dev)
2060 unsigned long flags;
2061 int ioaddr = dev->base_addr;
2062 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2064 #ifdef HP100_DEBUG_B
2065 hp100_outw(0x4218, TRACE);
2066 printk("hp100: %s: set_mc_list\n", dev->name);
2069 spin_lock_irqsave(&lp->lock, flags);
2071 hp100_page(MAC_CTRL);
2072 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */
2074 if (dev->flags & IFF_PROMISC) {
2075 lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */
2076 lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */
2077 memset(&lp->hash_bytes, 0xff, 8);
2078 } else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
2079 lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */
2080 lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */
2081 #ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */
2082 if (dev->flags & IFF_ALLMULTI) {
2083 /* set hash filter to receive all multicast packets */
2084 memset(&lp->hash_bytes, 0xff, 8);
2088 struct dev_mc_list *dmi;
2090 memset(&lp->hash_bytes, 0x00, 8);
2092 printk("hp100: %s: computing hash filter - mc_count = %i\n", dev->name, dev->mc_count);
2094 for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) {
2095 addrs = dmi->dmi_addr;
2096 if ((*addrs & 0x01) == 0x01) { /* multicast address? */
2098 printk("hp100: %s: multicast = %02x:%02x:%02x:%02x:%02x:%02x, ",
2099 dev->name, addrs[0], addrs[1], addrs[2],
2100 addrs[3], addrs[4], addrs[5]);
2102 for (j = idx = 0; j < 6; j++) {
2103 idx ^= *addrs++ & 0x3f;
2104 printk(":%02x:", idx);
2107 printk("idx = %i\n", idx);
2109 lp->hash_bytes[idx >> 3] |= (1 << (idx & 7));
2114 memset(&lp->hash_bytes, 0xff, 8);
2117 lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */
2118 lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */
2119 memset(&lp->hash_bytes, 0x00, 8);
2122 if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) ||
2123 (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) {
2126 hp100_outb(lp->mac2_mode, MAC_CFG_2);
2127 hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */
2128 hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */
2130 hp100_page(MAC_ADDRESS);
2131 for (i = 0; i < 8; i++)
2132 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i);
2134 printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
2135 dev->name, lp->mac1_mode, lp->mac2_mode,
2136 lp->hash_bytes[0], lp->hash_bytes[1],
2137 lp->hash_bytes[2], lp->hash_bytes[3],
2138 lp->hash_bytes[4], lp->hash_bytes[5],
2139 lp->hash_bytes[6], lp->hash_bytes[7]);
2142 if (lp->lan_type == HP100_LAN_100) {
2144 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name);
2146 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */
2150 u_char old_hash_bytes[8];
2152 hp100_page(MAC_ADDRESS);
2153 for (i = 0; i < 8; i++)
2154 old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i);
2155 if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) {
2156 for (i = 0; i < 8; i++)
2157 hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i);
2159 printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
2160 dev->name, lp->hash_bytes[0],
2161 lp->hash_bytes[1], lp->hash_bytes[2],
2162 lp->hash_bytes[3], lp->hash_bytes[4],
2163 lp->hash_bytes[5], lp->hash_bytes[6],
2167 if (lp->lan_type == HP100_LAN_100) {
2169 printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name);
2171 lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */
2176 hp100_page(MAC_CTRL);
2177 hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */
2178 HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */
2180 hp100_page(PERFORMANCE);
2182 spin_unlock_irqrestore(&lp->lock, flags);
2186 * hardware interrupt handling
2189 static irqreturn_t hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2191 struct net_device *dev = (struct net_device *) dev_id;
2192 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2199 ioaddr = dev->base_addr;
2201 spin_lock(&lp->lock);
2205 #ifdef HP100_DEBUG_B
2206 hp100_outw(0x4219, TRACE);
2209 /* hp100_page( PERFORMANCE ); */
2210 val = hp100_inw(IRQ_STATUS);
2211 #ifdef HP100_DEBUG_IRQ
2212 printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n",
2213 dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT),
2214 hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL));
2217 if (val == 0) { /* might be a shared interrupt */
2218 spin_unlock(&lp->lock);
2222 /* We're only interested in those interrupts we really enabled. */
2223 /* val &= hp100_inw( IRQ_MASK ); */
2226 * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL
2227 * is considered executed whenever the RX_PDL data structure is no longer
2230 if (val & HP100_RX_PDL_FILL_COMPL) {
2234 printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name);
2239 * The RX_PACKET interrupt is set, when the receive packet counter is
2240 * non zero. We use this interrupt for receiving in slave mode. In
2241 * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill
2242 * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then
2243 * we somehow have missed a rx_pdl_fill_compl interrupt.
2246 if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */
2247 if (lp->mode != 1) /* non busmaster */
2249 else if (!(val & HP100_RX_PDL_FILL_COMPL)) {
2250 /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */
2256 * Ack. that we have noticed the interrupt and thereby allow next one.
2257 * Note that this is now done after the slave rx function, since first
2258 * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt
2261 hp100_outw(val, IRQ_STATUS);
2264 * RX_ERROR is set when a packet is dropped due to no memory resources on
2265 * the card or when a RCV_ERR occurs.
2266 * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists
2267 * only in the 802.3 MAC and happens when 16 collisions occur during a TX
2269 if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) {
2270 #ifdef HP100_DEBUG_IRQ
2271 printk("hp100: %s: TX/RX Error IRQ\n", dev->name);
2273 hp100_update_stats(dev);
2274 if (lp->mode == 1) {
2276 hp100_clean_txring(dev);
2281 * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero.
2283 if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO)))
2287 * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire
2290 if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE)))
2291 hp100_clean_txring(dev);
2294 * MISC_ERROR is set when either the LAN link goes down or a detected
2297 if (val & HP100_MISC_ERROR) { /* New for J2585B */
2298 #ifdef HP100_DEBUG_IRQ
2300 ("hp100: %s: Misc. Error Interrupt - Check cabling.\n",
2303 if (lp->mode == 1) {
2304 hp100_clean_txring(dev);
2307 hp100_misc_interrupt(dev);
2310 spin_unlock(&lp->lock);
2316 * some misc functions
2319 static void hp100_start_interface(struct net_device *dev)
2321 unsigned long flags;
2322 int ioaddr = dev->base_addr;
2323 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2325 #ifdef HP100_DEBUG_B
2326 hp100_outw(0x4220, TRACE);
2327 printk("hp100: %s: hp100_start_interface\n", dev->name);
2330 spin_lock_irqsave(&lp->lock, flags);
2332 /* Ensure the adapter does not want to request an interrupt when */
2333 /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */
2334 hp100_page(PERFORMANCE);
2335 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
2336 hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */
2337 hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB,
2339 /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */
2340 hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW);
2342 if (lp->mode == 1) {
2343 /* Make sure BM bit is set... */
2345 hp100_orb(HP100_BM_MASTER, BM);
2347 } else if (lp->mode == 2) {
2348 /* Enable memory mapping. Note: Don't do this when busmaster. */
2349 hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW);
2352 hp100_page(PERFORMANCE);
2353 hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
2354 hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
2356 /* enable a few interrupts: */
2357 if (lp->mode == 1) { /* busmaster mode */
2358 hp100_outw(HP100_RX_PDL_FILL_COMPL |
2359 HP100_RX_PDA_ZERO | HP100_RX_ERROR |
2360 /* HP100_RX_PACKET | */
2361 /* HP100_RX_EARLY_INT | */ HP100_SET_HB |
2362 /* HP100_TX_PDA_ZERO | */
2364 /* HP100_MISC_ERROR | */
2365 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK);
2367 hp100_outw(HP100_RX_PACKET |
2368 HP100_RX_ERROR | HP100_SET_HB |
2369 HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK);
2372 /* Note : before hp100_set_multicast_list(), because it will play with
2373 * spinlock itself... Jean II */
2374 spin_unlock_irqrestore(&lp->lock, flags);
2376 /* Enable MAC Tx and RX, set MAC modes, ... */
2377 hp100_set_multicast_list(dev);
2380 static void hp100_stop_interface(struct net_device *dev)
2382 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2383 int ioaddr = dev->base_addr;
2386 #ifdef HP100_DEBUG_B
2387 printk("hp100: %s: hp100_stop_interface\n", dev->name);
2388 hp100_outw(0x4221, TRACE);
2392 hp100_BM_shutdown(dev);
2394 /* Note: MMAP_DIS will be reenabled by start_interface */
2395 hp100_outw(HP100_INT_EN | HP100_RESET_LB |
2396 HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB,
2398 val = hp100_inw(OPTION_LSW);
2400 hp100_page(MAC_CTRL);
2401 hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1);
2403 if (!(val & HP100_HW_RST))
2404 return; /* If reset, imm. return ... */
2405 /* ... else: busy wait until idle */
2406 for (val = 0; val < 6000; val++)
2407 if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) {
2408 hp100_page(PERFORMANCE);
2411 printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name);
2412 hp100_page(PERFORMANCE);
2416 static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr)
2419 int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr;
2421 #ifdef HP100_DEBUG_B
2422 hp100_outw(0x4222, TRACE);
2425 hp100_page(EEPROM_CTRL);
2426 hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL);
2427 hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL);
2428 for (i = 0; i < 10000; i++)
2429 if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD))
2431 printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name);
2434 /* Sense connection status.
2435 * return values: LAN_10 - Connected to 10Mbit/s network
2436 * LAN_100 - Connected to 100Mbit/s network
2437 * LAN_ERR - not connected or 100Mbit/s Hub down
2439 static int hp100_sense_lan(struct net_device *dev)
2441 int ioaddr = dev->base_addr;
2442 u_short val_VG, val_10;
2443 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2445 #ifdef HP100_DEBUG_B
2446 hp100_outw(0x4223, TRACE);
2449 hp100_page(MAC_CTRL);
2450 val_10 = hp100_inb(10_LAN_CFG_1);
2451 val_VG = hp100_inb(VG_LAN_CFG_1);
2452 hp100_page(PERFORMANCE);
2454 printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n",
2455 dev->name, val_VG, val_10);
2458 if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */
2459 return HP100_LAN_10;
2461 if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */
2463 * This can be overriden by dos utility, so if this has no effect,
2464 * perhaps you need to download that utility from HP and set card
2465 * back to "auto detect".
2467 val_10 |= HP100_AUI_SEL | HP100_LOW_TH;
2468 hp100_page(MAC_CTRL);
2469 hp100_outb(val_10, 10_LAN_CFG_1);
2470 hp100_page(PERFORMANCE);
2471 return HP100_LAN_COAX;
2474 /* Those cards don't have a 100 Mbit connector */
2475 if ( !strcmp(lp->id, "HWP1920") ||
2477 lp->pci_dev->vendor == PCI_VENDOR_ID &&
2478 (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A ||
2479 lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A)))
2480 return HP100_LAN_ERR;
2482 if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */
2483 return HP100_LAN_100;
2484 return HP100_LAN_ERR;
2487 static int hp100_down_vg_link(struct net_device *dev)
2489 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2490 int ioaddr = dev->base_addr;
2492 long savelan, newlan;
2494 #ifdef HP100_DEBUG_B
2495 hp100_outw(0x4224, TRACE);
2496 printk("hp100: %s: down_vg_link\n", dev->name);
2499 hp100_page(MAC_CTRL);
2500 time = jiffies + (HZ / 4);
2502 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST)
2504 if (!in_interrupt()) {
2505 set_current_state(TASK_INTERRUPTIBLE);
2506 schedule_timeout(1);
2508 } while (time_after(time, jiffies));
2510 if (time_after_eq(jiffies, time)) /* no signal->no logout */
2513 /* Drop the VG Link by clearing the link up cmd and load addr. */
2515 hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1);
2516 hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1);
2518 /* Conditionally stall for >250ms on Link-Up Status (to go down) */
2519 time = jiffies + (HZ / 2);
2521 if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST))
2523 if (!in_interrupt()) {
2524 set_current_state(TASK_INTERRUPTIBLE);
2525 schedule_timeout(1);
2527 } while (time_after(time, jiffies));
2530 if (time_after_eq(jiffies, time))
2531 printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name);
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 /* do this workaround to get the Rev 1 MAC in its idle state */
2537 if (lp->chip == HP100_CHIPID_LASSEN) {
2538 /* Reset VG MAC to insure it leaves the logoff state even if */
2539 /* the Hub is still emitting tones */
2540 hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1);
2541 udelay(1500); /* wait for >1ms */
2542 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */
2546 /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */
2547 /* to get the VG mac to full reset. This is not req.d with later chips */
2548 /* Note: It will take the between 1 and 2 seconds for the VG mac to be */
2549 /* selected again! This will be left to the connect hub function to */
2550 /* perform if desired. */
2551 if (lp->chip == HP100_CHIPID_LASSEN) {
2552 /* Have to write to 10 and 100VG control registers simultaneously */
2553 savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */
2554 newlan &= ~(HP100_VG_SEL << 16);
2555 newlan |= (HP100_DOT3_MAC) << 8;
2556 hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */
2557 hp100_outl(newlan, 10_LAN_CFG_1);
2559 /* Conditionally stall for 5sec on VG selected. */
2560 time = jiffies + (HZ * 5);
2562 if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST))
2564 if (!in_interrupt()) {
2565 set_current_state(TASK_INTERRUPTIBLE);
2566 schedule_timeout(1);
2568 } while (time_after(time, jiffies));
2570 hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */
2571 hp100_outl(savelan, 10_LAN_CFG_1);
2574 time = jiffies + (3 * HZ); /* Timeout 3s */
2576 if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0)
2578 if (!in_interrupt()) {
2579 set_current_state(TASK_INTERRUPTIBLE);
2580 schedule_timeout(1);
2582 } while (time_after(time, jiffies));
2584 if (time_before_eq(time, jiffies)) {
2586 printk("hp100: %s: down_vg_link: timeout\n", dev->name);
2591 time = jiffies + (2 * HZ); /* This seems to take a while.... */
2593 if (!in_interrupt()) {
2594 set_current_state(TASK_INTERRUPTIBLE);
2595 schedule_timeout(1);
2597 } while (time_after(time, jiffies));
2602 static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin)
2604 int ioaddr = dev->base_addr;
2605 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2610 #ifdef HP100_DEBUG_B
2611 hp100_outw(0x4225, TRACE);
2612 printk("hp100: %s: login_to_vg_hub\n", dev->name);
2615 /* Initiate a login sequence iff VG MAC is enabled and either Load Address
2616 * bit is zero or the force relogin flag is set (e.g. due to MAC address or
2617 * promiscuous mode change)
2619 hp100_page(MAC_CTRL);
2620 startst = hp100_inb(VG_LAN_CFG_1);
2621 if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) {
2622 #ifdef HP100_DEBUG_TRAINING
2623 printk("hp100: %s: Start training\n", dev->name);
2626 /* Ensure VG Reset bit is 1 (i.e., do not reset) */
2627 hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1);
2629 /* If Lassen AND auto-select-mode AND VG tones were sensed on */
2630 /* entry then temporarily put them into force 100Mbit mode */
2631 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST))
2632 hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2);
2634 /* Drop the VG link by zeroing Link Up Command and Load Address */
2635 hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1);
2637 #ifdef HP100_DEBUG_TRAINING
2638 printk("hp100: %s: Bring down the link\n", dev->name);
2641 /* Wait for link to drop */
2642 time = jiffies + (HZ / 10);
2644 if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST))
2646 if (!in_interrupt()) {
2647 set_current_state(TASK_INTERRUPTIBLE);
2648 schedule_timeout(1);
2650 } while (time_after(time, jiffies));
2652 /* Start an addressed training and optionally request promiscuous port */
2653 if ((dev->flags) & IFF_PROMISC) {
2654 hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2);
2655 if (lp->chip == HP100_CHIPID_LASSEN)
2656 hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST);
2658 hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2);
2659 /* For ETR parts we need to reset the prom. bit in the training
2660 * register, otherwise promiscious mode won't be disabled.
2662 if (lp->chip == HP100_CHIPID_LASSEN) {
2663 hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST);
2667 /* With ETR parts, frame format request bits can be set. */
2668 if (lp->chip == HP100_CHIPID_LASSEN)
2669 hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST);
2671 hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1);
2673 /* Note: Next wait could be omitted for Hood and earlier chips under */
2674 /* certain circumstances */
2675 /* TODO: check if hood/earlier and skip wait. */
2677 /* Wait for either short timeout for VG tones or long for login */
2678 /* Wait for the card hardware to signalise link cable status ok... */
2679 hp100_page(MAC_CTRL);
2680 time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */
2682 if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST)
2684 if (!in_interrupt()) {
2685 set_current_state(TASK_INTERRUPTIBLE);
2686 schedule_timeout(1);
2688 } while (time_before(jiffies, time));
2690 if (time_after_eq(jiffies, time)) {
2691 #ifdef HP100_DEBUG_TRAINING
2692 printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name);
2695 #ifdef HP100_DEBUG_TRAINING
2697 ("hp100: %s: HUB tones detected. Trying to train.\n",
2701 time = jiffies + (2 * HZ); /* again a timeout */
2703 val = hp100_inb(VG_LAN_CFG_1);
2704 if ((val & (HP100_LINK_UP_ST))) {
2705 #ifdef HP100_DEBUG_TRAINING
2706 printk("hp100: %s: Passed training.\n", dev->name);
2710 if (!in_interrupt()) {
2711 set_current_state(TASK_INTERRUPTIBLE);
2712 schedule_timeout(1);
2714 } while (time_after(time, jiffies));
2717 /* If LINK_UP_ST is set, then we are logged into the hub. */
2718 if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) {
2719 #ifdef HP100_DEBUG_TRAINING
2720 printk("hp100: %s: Successfully logged into the HUB.\n", dev->name);
2721 if (lp->chip == HP100_CHIPID_LASSEN) {
2722 val = hp100_inw(TRAIN_ALLOW);
2723 printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ",
2724 dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre");
2725 printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre");
2726 printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3");
2730 /* If LINK_UP_ST is not set, login was not successful */
2731 printk("hp100: %s: Problem logging into the HUB.\n", dev->name);
2732 if (lp->chip == HP100_CHIPID_LASSEN) {
2733 /* Check allowed Register to find out why there is a problem. */
2734 val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */
2735 #ifdef HP100_DEBUG_TRAINING
2736 printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val);
2738 if (val & HP100_MALLOW_ACCDENIED)
2739 printk("hp100: %s: HUB access denied.\n", dev->name);
2740 if (val & HP100_MALLOW_CONFIGURE)
2741 printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name);
2742 if (val & HP100_MALLOW_DUPADDR)
2743 printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name);
2747 /* If we have put the chip into forced 100 Mbit mode earlier, go back */
2748 /* to auto-select mode */
2750 if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) {
2751 hp100_page(MAC_CTRL);
2752 hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2);
2755 val = hp100_inb(VG_LAN_CFG_1);
2757 /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */
2758 hp100_page(PERFORMANCE);
2759 hp100_outw(HP100_MISC_ERROR, IRQ_STATUS);
2761 if (val & HP100_LINK_UP_ST)
2762 return (0); /* login was ok */
2764 printk("hp100: %s: Training failed.\n", dev->name);
2765 hp100_down_vg_link(dev);
2769 /* no forced relogin & already link there->no training. */
2773 static void hp100_cascade_reset(struct net_device *dev, u_short enable)
2775 int ioaddr = dev->base_addr;
2776 struct hp100_private *lp = (struct hp100_private *) dev->priv;
2778 #ifdef HP100_DEBUG_B
2779 hp100_outw(0x4226, TRACE);
2780 printk("hp100: %s: cascade_reset\n", dev->name);
2784 hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW);
2785 if (lp->chip == HP100_CHIPID_LASSEN) {
2786 /* Lassen requires a PCI transmit fifo reset */
2788 hp100_andb(~HP100_PCI_RESET, PCICTRL2);
2789 hp100_orb(HP100_PCI_RESET, PCICTRL2);
2790 /* Wait for min. 300 ns */
2791 /* we can't use jiffies here, because it may be */
2792 /* that we have disabled the timer... */
2794 hp100_andb(~HP100_PCI_RESET, PCICTRL2);
2795 hp100_page(PERFORMANCE);
2797 } else { /* bring out of reset */
2798 hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW);
2800 hp100_page(PERFORMANCE);
2805 void hp100_RegisterDump(struct net_device *dev)
2807 int ioaddr = dev->base_addr;
2811 /* Dump common registers */
2812 printk("hp100: %s: Cascade Register Dump\n", dev->name);
2813 printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID));
2814 printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING));
2815 printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW));
2816 printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW));
2818 /* Dump paged registers */
2819 for (Page = 0; Page < 8; Page++) {
2820 /* Dump registers */
2821 printk("page: 0x%.2x\n", Page);
2822 outw(Page, ioaddr + 0x02);
2823 for (Register = 0x8; Register < 0x22; Register += 2) {
2824 /* Display Register contents except data port */
2825 if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) {
2826 printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register));
2830 hp100_page(PERFORMANCE);
2835 static void cleanup_dev(struct net_device *d)
2837 struct hp100_private *p = (struct hp100_private *) d->priv;
2839 unregister_netdev(d);
2840 release_region(d->base_addr, HP100_REGION_SIZE);
2842 if (p->mode == 1) /* busmaster */
2843 pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f,
2845 virt_to_whatever(d, p->page_vaddr_algn));
2846 if (p->mem_ptr_virt)
2847 iounmap(p->mem_ptr_virt);
2853 static int __init hp100_eisa_probe (struct device *gendev)
2855 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
2856 struct eisa_device *edev = to_eisa_device(gendev);
2862 SET_MODULE_OWNER(dev);
2863 SET_NETDEV_DEV(dev, &edev->dev);
2865 err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL);
2869 err = register_netdev(dev);
2874 printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name,
2877 gendev->driver_data = dev;
2880 release_region(dev->base_addr, HP100_REGION_SIZE);
2886 static int __devexit hp100_eisa_remove (struct device *gendev)
2888 struct net_device *dev = gendev->driver_data;
2893 static struct eisa_driver hp100_eisa_driver = {
2894 .id_table = hp100_eisa_tbl,
2897 .probe = hp100_eisa_probe,
2898 .remove = __devexit_p (hp100_eisa_remove),
2904 static int __devinit hp100_pci_probe (struct pci_dev *pdev,
2905 const struct pci_device_id *ent)
2907 struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
2908 int ioaddr = pci_resource_start(pdev, 0);
2909 u_short pci_command;
2915 SET_MODULE_OWNER(dev);
2916 SET_NETDEV_DEV(dev, &pdev->dev);
2918 pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
2919 if (!(pci_command & PCI_COMMAND_IO)) {
2921 printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name);
2923 pci_command |= PCI_COMMAND_IO;
2924 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
2927 if (!(pci_command & PCI_COMMAND_MASTER)) {
2929 printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name);
2931 pci_command |= PCI_COMMAND_MASTER;
2932 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
2936 err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev);
2939 err = register_netdev(dev);
2944 printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr);
2946 pci_set_drvdata(pdev, dev);
2949 release_region(dev->base_addr, HP100_REGION_SIZE);
2955 static void __devexit hp100_pci_remove (struct pci_dev *pdev)
2957 struct net_device *dev = pci_get_drvdata(pdev);
2963 static struct pci_driver hp100_pci_driver = {
2965 .id_table = hp100_pci_tbl,
2966 .probe = hp100_pci_probe,
2967 .remove = __devexit_p(hp100_pci_remove),
2975 MODULE_LICENSE("GPL");
2976 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, "
2977 "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>");
2978 MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters");
2981 * Note: to register three isa devices, use:
2982 * option hp100 hp100_port=0,0,0
2983 * to register one card at io 0x280 as eth239, use:
2984 * option hp100 hp100_port=0x280
2986 #if defined(MODULE) && defined(CONFIG_ISA)
2987 #define HP100_DEVICES 5
2988 /* Parameters set by insmod */
2989 static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 };
2990 MODULE_PARM(hp100_port, "1-" __MODULE_STRING(HP100_DEVICES) "i");
2992 /* List of devices */
2993 static struct net_device *hp100_devlist[HP100_DEVICES];
2995 static int __init hp100_isa_init(void)
2997 struct net_device *dev;
2998 int i, err, cards = 0;
3000 /* Don't autoprobe ISA bus */
3001 if (hp100_port[0] == 0)
3004 /* Loop on all possible base addresses */
3005 for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) {
3006 dev = alloc_etherdev(sizeof(struct hp100_private));
3008 printk(KERN_WARNING "hp100: no memory for network device\n");
3010 cleanup_dev(hp100_devlist[--cards]);
3014 SET_MODULE_OWNER(dev);
3016 err = hp100_isa_probe(dev, hp100_port[i]);
3018 err = register_netdev(dev);
3020 hp100_devlist[cards++] = dev;
3022 release_region(dev->base_addr, HP100_REGION_SIZE);
3029 return cards > 0 ? 0 : -ENODEV;
3032 static void __exit hp100_isa_cleanup(void)
3036 for (i = 0; i < HP100_DEVICES; i++) {
3037 struct net_device *dev = hp100_devlist[i];
3043 #define hp100_isa_init() (0)
3044 #define hp100_isa_cleanup() do { } while(0)
3047 static int __init hp100_module_init(void)
3051 err = hp100_isa_init();
3052 if (err && err != -ENODEV)
3055 err = eisa_driver_register(&hp100_eisa_driver);
3056 if (err && err != -ENODEV)
3060 err = pci_module_init(&hp100_pci_driver);
3061 if (err && err != -ENODEV)
3068 eisa_driver_unregister (&hp100_eisa_driver);
3071 hp100_isa_cleanup();
3076 static void __exit hp100_module_exit(void)
3078 hp100_isa_cleanup();
3080 eisa_driver_unregister (&hp100_eisa_driver);
3083 pci_unregister_driver (&hp100_pci_driver);
3087 module_init(hp100_module_init)
3088 module_exit(hp100_module_exit)
3093 * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c hp100.c"