diff options
Diffstat (limited to 'drivers/net/ethernet/hp/hp100.c')
| -rw-r--r-- | drivers/net/ethernet/hp/hp100.c | 3037 |
1 files changed, 0 insertions, 3037 deletions
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c deleted file mode 100644 index 6ec78f5c602f..000000000000 --- a/drivers/net/ethernet/hp/hp100.c +++ /dev/null @@ -1,3037 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* -** hp100.c -** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters -** -** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $ -** -** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz> -** Extended for new busmaster capable chipsets by -** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de> -** -** Maintained by: Jaroslav Kysela <perex@perex.cz> -** -** This driver has only been tested with -** -- HP J2585B 10/100 Mbit/s PCI Busmaster -** -- HP J2585A 10/100 Mbit/s PCI -** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC -** -- HP J2973A 10 Mbit/s PCI 10base-T -** -- HP J2573 10/100 ISA -** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA -** -- Compex FreedomLine 100/VG 10/100 Mbit/s ISA / EISA / PCI -** -** but it should also work with the other CASCADE based adapters. -** -** TODO: -** - J2573 seems to hang sometimes when in shared memory mode. -** - Mode for Priority TX -** - Check PCI registers, performance might be improved? -** - To reduce interrupt load in busmaster, one could switch off -** the interrupts that are used to refill the queues whenever the -** queues are filled up to more than a certain threshold. -** - some updates for EISA version of card -** -** -** -** 1.57c -> 1.58 -** - used indent to change coding-style -** - added KTI DP-200 EISA ID -** - ioremap is also used for low (<1MB) memory (multi-architecture support) -** -** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br> -** - release resources on failure in init_module -** -** 1.57 -> 1.57b - Jean II -** - fix spinlocks, SMP is now working ! -** -** 1.56 -> 1.57 -** - updates for new PCI interface for 2.1 kernels -** -** 1.55 -> 1.56 -** - removed printk in misc. interrupt and update statistics to allow -** monitoring of card status -** - timing changes in xmit routines, relogin to 100VG hub added when -** driver does reset -** - included fix for Compex FreedomLine PCI adapter -** -** 1.54 -> 1.55 -** - fixed bad initialization in init_module -** - added Compex FreedomLine adapter -** - some fixes in card initialization -** -** 1.53 -> 1.54 -** - added hardware multicast filter support (doesn't work) -** - little changes in hp100_sense_lan routine -** - added support for Coax and AUI (J2970) -** - fix for multiple cards and hp100_mode parameter (insmod) -** - fix for shared IRQ -** -** 1.52 -> 1.53 -** - fixed bug in multicast support -** -*/ - -#define HP100_DEFAULT_PRIORITY_TX 0 - -#undef HP100_DEBUG -#undef HP100_DEBUG_B /* Trace */ -#undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */ - -#undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */ -#undef HP100_DEBUG_TX -#undef HP100_DEBUG_IRQ -#undef HP100_DEBUG_RX - -#undef HP100_MULTICAST_FILTER /* Need to be debugged... */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/eisa.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/spinlock.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/bitops.h> -#include <linux/jiffies.h> - -#include <asm/io.h> - -#include "hp100.h" - -/* - * defines - */ - -#define HP100_BUS_ISA 0 -#define HP100_BUS_EISA 1 -#define HP100_BUS_PCI 2 - -#define HP100_REGION_SIZE 0x20 /* for ioports */ -#define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */ - -#define HP100_MAX_PACKET_SIZE (1536+4) -#define HP100_MIN_PACKET_SIZE 60 - -#ifndef HP100_DEFAULT_RX_RATIO -/* default - 75% onboard memory on the card are used for RX packets */ -#define HP100_DEFAULT_RX_RATIO 75 -#endif - -#ifndef HP100_DEFAULT_PRIORITY_TX -/* default - don't enable transmit outgoing packets as priority */ -#define HP100_DEFAULT_PRIORITY_TX 0 -#endif - -/* - * structures - */ - -struct hp100_private { - spinlock_t lock; - char id[HP100_SIG_LEN]; - u_short chip; - u_short soft_model; - u_int memory_size; - u_int virt_memory_size; - u_short rx_ratio; /* 1 - 99 */ - u_short priority_tx; /* != 0 - priority tx */ - u_short mode; /* PIO, Shared Mem or Busmaster */ - u_char bus; - struct pci_dev *pci_dev; - short mem_mapped; /* memory mapped access */ - void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */ - unsigned long mem_ptr_phys; /* physical memory mapped area */ - short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */ - int hub_status; /* was login to hub successful? */ - u_char mac1_mode; - u_char mac2_mode; - u_char hash_bytes[8]; - - /* Rings for busmaster mode: */ - hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */ - hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */ - hp100_ring_t *txrhead; /* Head (oldest) index into txring */ - hp100_ring_t *txrtail; /* Tail (newest) index into txring */ - - hp100_ring_t rxring[MAX_RX_PDL]; - hp100_ring_t txring[MAX_TX_PDL]; - - u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */ - u_long whatever_offset; /* Offset to bus/phys/dma address */ - int rxrcommit; /* # Rx PDLs committed to adapter */ - int txrcommit; /* # Tx PDLs committed to adapter */ -}; - -/* - * variables - */ -#ifdef CONFIG_ISA -static const char *hp100_isa_tbl[] = { - "HWPF150", /* HP J2573 rev A */ - "HWP1950", /* HP J2573 */ -}; -#endif - -static const struct eisa_device_id hp100_eisa_tbl[] = { - { "HWPF180" }, /* HP J2577 rev A */ - { "HWP1920" }, /* HP 27248B */ - { "HWP1940" }, /* HP J2577 */ - { "HWP1990" }, /* HP J2577 */ - { "CPX0301" }, /* ReadyLink ENET100-VG4 */ - { "CPX0401" }, /* FreedomLine 100/VG */ - { "" } /* Mandatory final entry ! */ -}; -MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl); - -static const struct pci_device_id hp100_pci_tbl[] = { - {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,}, - {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,}, - {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,}, - {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,}, - {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,}, - {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,}, -/* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */ - {} /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(pci, hp100_pci_tbl); - -static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO; -static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX; -static int hp100_mode = 1; - -module_param(hp100_rx_ratio, int, 0); -module_param(hp100_priority_tx, int, 0); -module_param(hp100_mode, int, 0); - -/* - * prototypes - */ - -static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, - struct pci_dev *pci_dev); - - -static int hp100_open(struct net_device *dev); -static int hp100_close(struct net_device *dev); -static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, - struct net_device *dev); -static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, - struct net_device *dev); -static void hp100_rx(struct net_device *dev); -static struct net_device_stats *hp100_get_stats(struct net_device *dev); -static void hp100_misc_interrupt(struct net_device *dev); -static void hp100_update_stats(struct net_device *dev); -static void hp100_clear_stats(struct hp100_private *lp, int ioaddr); -static void hp100_set_multicast_list(struct net_device *dev); -static irqreturn_t hp100_interrupt(int irq, void *dev_id); -static void hp100_start_interface(struct net_device *dev); -static void hp100_stop_interface(struct net_device *dev); -static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr); -static int hp100_sense_lan(struct net_device *dev); -static int hp100_login_to_vg_hub(struct net_device *dev, - u_short force_relogin); -static int hp100_down_vg_link(struct net_device *dev); -static void hp100_cascade_reset(struct net_device *dev, u_short enable); -static void hp100_BM_shutdown(struct net_device *dev); -static void hp100_mmuinit(struct net_device *dev); -static void hp100_init_pdls(struct net_device *dev); -static int hp100_init_rxpdl(struct net_device *dev, - register hp100_ring_t * ringptr, - register u_int * pdlptr); -static int hp100_init_txpdl(struct net_device *dev, - register hp100_ring_t * ringptr, - register u_int * pdlptr); -static void hp100_rxfill(struct net_device *dev); -static void hp100_hwinit(struct net_device *dev); -static void hp100_clean_txring(struct net_device *dev); -#ifdef HP100_DEBUG -static void hp100_RegisterDump(struct net_device *dev); -#endif - -/* Conversion to new PCI API : - * Convert an address in a kernel buffer to a bus/phys/dma address. - * This work *only* for memory fragments part of lp->page_vaddr, - * because it was properly DMA allocated via pci_alloc_consistent(), - * so we just need to "retrieve" the original mapping to bus/phys/dma - * address - Jean II */ -static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr) -{ - struct hp100_private *lp = netdev_priv(dev); - return ((u_long) ptr) + lp->whatever_offset; -} - -static inline u_int pdl_map_data(struct hp100_private *lp, void *data) -{ - return pci_map_single(lp->pci_dev, data, - MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); -} - -/* TODO: This function should not really be needed in a good design... */ -static void wait(void) -{ - mdelay(1); -} - -/* - * probe functions - * These functions should - if possible - avoid doing write operations - * since this could cause problems when the card is not installed. - */ - -/* - * Read board id and convert to string. - * Effectively same code as decode_eisa_sig - */ -static const char *hp100_read_id(int ioaddr) -{ - int i; - static char str[HP100_SIG_LEN]; - unsigned char sig[4], sum; - unsigned short rev; - - hp100_page(ID_MAC_ADDR); - sum = 0; - for (i = 0; i < 4; i++) { - sig[i] = hp100_inb(BOARD_ID + i); - sum += sig[i]; - } - - sum += hp100_inb(BOARD_ID + i); - if (sum != 0xff) - return NULL; /* bad checksum */ - - str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1); - str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1); - str[2] = (sig[1] & 0x1f) + ('A' - 1); - rev = (sig[2] << 8) | sig[3]; - sprintf(str + 3, "%04X", rev); - - return str; -} - -#ifdef CONFIG_ISA -static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr) -{ - const char *sig; - int i; - - if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) - goto err; - - if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) { - release_region(ioaddr, HP100_REGION_SIZE); - goto err; - } - - sig = hp100_read_id(ioaddr); - release_region(ioaddr, HP100_REGION_SIZE); - - if (sig == NULL) - goto err; - - for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) { - if (!strcmp(hp100_isa_tbl[i], sig)) - break; - - } - - if (i < ARRAY_SIZE(hp100_isa_tbl)) - return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL); - err: - return -ENODEV; - -} -/* - * Probe for ISA board. - * EISA and PCI are handled by device infrastructure. - */ - -static int __init hp100_isa_probe(struct net_device *dev, int addr) -{ - int err = -ENODEV; - - /* Probe for a specific ISA address */ - if (addr > 0xff && addr < 0x400) - err = hp100_isa_probe1(dev, addr); - - else if (addr != 0) - err = -ENXIO; - - else { - /* Probe all ISA possible port regions */ - for (addr = 0x100; addr < 0x400; addr += 0x20) { - err = hp100_isa_probe1(dev, addr); - if (!err) - break; - } - } - return err; -} -#endif /* CONFIG_ISA */ - -#if !defined(MODULE) && defined(CONFIG_ISA) -struct net_device * __init hp100_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); - int err; - - if (!dev) - return ERR_PTR(-ENODEV); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4200, TRACE); - printk("hp100: %s: probe\n", dev->name); -#endif - - if (unit >= 0) { - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - } - - err = hp100_isa_probe(dev, dev->base_addr); - if (err) - goto out; - - return dev; - out: - free_netdev(dev); - return ERR_PTR(err); -} -#endif /* !MODULE && CONFIG_ISA */ - -static const struct net_device_ops hp100_bm_netdev_ops = { - .ndo_open = hp100_open, - .ndo_stop = hp100_close, - .ndo_start_xmit = hp100_start_xmit_bm, - .ndo_get_stats = hp100_get_stats, - .ndo_set_rx_mode = hp100_set_multicast_list, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static const struct net_device_ops hp100_netdev_ops = { - .ndo_open = hp100_open, - .ndo_stop = hp100_close, - .ndo_start_xmit = hp100_start_xmit, - .ndo_get_stats = hp100_get_stats, - .ndo_set_rx_mode = hp100_set_multicast_list, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, - struct pci_dev *pci_dev) -{ - int i; - int err = -ENODEV; - const char *eid; - u_int chip; - u_char uc; - u_int memory_size = 0, virt_memory_size = 0; - u_short local_mode, lsw; - short mem_mapped; - unsigned long mem_ptr_phys; - void __iomem *mem_ptr_virt; - struct hp100_private *lp; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4201, TRACE); - printk("hp100: %s: probe1\n", dev->name); -#endif - - /* memory region for programmed i/o */ - if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) - goto out1; - - if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) - goto out2; - - chip = hp100_inw(PAGING) & HP100_CHIPID_MASK; -#ifdef HP100_DEBUG - if (chip == HP100_CHIPID_SHASTA) - printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name); - else if (chip == HP100_CHIPID_RAINIER) - printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name); - else if (chip == HP100_CHIPID_LASSEN) - printk("hp100: %s: Lassen Chip detected.\n", dev->name); - else - printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip); -#endif - - dev->base_addr = ioaddr; - - eid = hp100_read_id(ioaddr); - if (eid == NULL) { /* bad checksum? */ - printk(KERN_WARNING "%s: bad ID checksum at base port 0x%x\n", - __func__, ioaddr); - goto out2; - } - - hp100_page(ID_MAC_ADDR); - for (i = uc = 0; i < 7; i++) - uc += hp100_inb(LAN_ADDR + i); - if (uc != 0xff) { - printk(KERN_WARNING - "%s: bad lan address checksum at port 0x%x)\n", - __func__, ioaddr); - err = -EIO; - goto out2; - } - - /* Make sure, that all registers are correctly updated... */ - - hp100_load_eeprom(dev, ioaddr); - wait(); - - /* - * Determine driver operation mode - * - * Use the variable "hp100_mode" upon insmod or as kernel parameter to - * force driver modes: - * hp100_mode=1 -> default, use busmaster mode if configured. - * hp100_mode=2 -> enable shared memory mode - * hp100_mode=3 -> force use of i/o mapped mode. - * hp100_mode=4 -> same as 1, but re-set the enable bit on the card. - */ - - /* - * LSW values: - * 0x2278 -> J2585B, PnP shared memory mode - * 0x2270 -> J2585B, shared memory mode, 0xdc000 - * 0xa23c -> J2585B, I/O mapped mode - * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip) - * 0x2220 -> EISA HP, I/O (Shasta Chip) - * 0x2260 -> EISA HP, BusMaster (Shasta Chip) - */ - -#if 0 - local_mode = 0x2270; - hp100_outw(0xfefe, OPTION_LSW); - hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW); -#endif - - /* hp100_mode value maybe used in future by another card */ - local_mode = hp100_mode; - if (local_mode < 1 || local_mode > 4) - local_mode = 1; /* default */ -#ifdef HP100_DEBUG - printk("hp100: %s: original LSW = 0x%x\n", dev->name, - hp100_inw(OPTION_LSW)); -#endif - - if (local_mode == 3) { - hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); - hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); - hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); - printk("hp100: IO mapped mode forced.\n"); - } else if (local_mode == 2) { - hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); - hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); - hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); - printk("hp100: Shared memory mode requested.\n"); - } else if (local_mode == 4) { - if (chip == HP100_CHIPID_LASSEN) { - hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); - hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); - printk("hp100: Busmaster mode requested.\n"); - } - local_mode = 1; - } - - if (local_mode == 1) { /* default behaviour */ - lsw = hp100_inw(OPTION_LSW); - - if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && - (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { -#ifdef HP100_DEBUG - printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); -#endif - local_mode = 3; - } else if (chip == HP100_CHIPID_LASSEN && - (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { - /* Conversion to new PCI API : - * I don't have the doc, but I assume that the card - * can map the full 32bit address space. - * Also, we can have EISA Busmaster cards (not tested), - * so beware !!! - Jean II */ - if((bus == HP100_BUS_PCI) && - (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)))) { - /* Gracefully fallback to shared memory */ - goto busmasterfail; - } - printk("hp100: Busmaster mode enabled.\n"); - hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); - } else { - busmasterfail: -#ifdef HP100_DEBUG - printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); - printk("hp100: %s: Trying shared memory mode.\n", dev->name); -#endif - /* In this case, try shared memory mode */ - local_mode = 2; - hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); - /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ - } - } -#ifdef HP100_DEBUG - printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); -#endif - - /* Check for shared memory on the card, eventually remap it */ - hp100_page(HW_MAP); - mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); - mem_ptr_phys = 0UL; - mem_ptr_virt = NULL; - memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); - virt_memory_size = 0; - - /* For memory mapped or busmaster mode, we want the memory address */ - if (mem_mapped || (local_mode == 1)) { - mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); - mem_ptr_phys &= ~0x1fff; /* 8k alignment */ - - if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { - printk("hp100: Can only use programmed i/o mode.\n"); - mem_ptr_phys = 0; - mem_mapped = 0; - local_mode = 3; /* Use programmed i/o */ - } - - /* We do not need access to shared memory in busmaster mode */ - /* However in slave mode we need to remap high (>1GB) card memory */ - if (local_mode != 1) { /* = not busmaster */ - /* We try with smaller memory sizes, if ioremap fails */ - for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { - if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { -#ifdef HP100_DEBUG - printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); -#endif - } else { -#ifdef HP100_DEBUG - 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); -#endif - break; - } - } - - if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ - printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); - local_mode = 3; - virt_memory_size = 0; - } - } - } - - if (local_mode == 3) { /* io mapped forced */ - mem_mapped = 0; - mem_ptr_phys = 0; - mem_ptr_virt = NULL; - printk("hp100: Using (slow) programmed i/o mode.\n"); - } - - /* Initialise the "private" data structure for this card. */ - lp = netdev_priv(dev); - - spin_lock_init(&lp->lock); - strlcpy(lp->id, eid, HP100_SIG_LEN); - lp->chip = chip; - lp->mode = local_mode; - lp->bus = bus; - lp->pci_dev = pci_dev; - lp->priority_tx = hp100_priority_tx; - lp->rx_ratio = hp100_rx_ratio; - lp->mem_ptr_phys = mem_ptr_phys; - lp->mem_ptr_virt = mem_ptr_virt; - hp100_page(ID_MAC_ADDR); - lp->soft_model = hp100_inb(SOFT_MODEL); - lp->mac1_mode = HP100_MAC1MODE3; - lp->mac2_mode = HP100_MAC2MODE3; - memset(&lp->hash_bytes, 0x00, 8); - - dev->base_addr = ioaddr; - - lp->memory_size = memory_size; - lp->virt_memory_size = virt_memory_size; - lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ - - if (lp->mode == 1) /* busmaster */ - dev->netdev_ops = &hp100_bm_netdev_ops; - else - dev->netdev_ops = &hp100_netdev_ops; - - /* Ask the card for which IRQ line it is configured */ - if (bus == HP100_BUS_PCI) { - dev->irq = pci_dev->irq; - } else { - hp100_page(HW_MAP); - dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; - if (dev->irq == 2) - dev->irq = 9; - } - - if (lp->mode == 1) /* busmaster */ - dev->dma = 4; - - /* Ask the card for its MAC address and store it for later use. */ - hp100_page(ID_MAC_ADDR); - for (i = uc = 0; i < 6; i++) - dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); - - /* Reset statistics (counters) */ - hp100_clear_stats(lp, ioaddr); - - /* If busmaster mode is wanted, a dma-capable memory area is needed for - * the rx and tx PDLs - * PCI cards can access the whole PC memory. Therefore GFP_DMA is not - * needed for the allocation of the memory area. - */ - - /* TODO: We do not need this with old cards, where PDLs are stored - * in the cards shared memory area. But currently, busmaster has been - * implemented/tested only with the lassen chip anyway... */ - if (lp->mode == 1) { /* busmaster */ - dma_addr_t page_baddr; - /* Get physically continuous memory for TX & RX PDLs */ - /* Conversion to new PCI API : - * Pages are always aligned and zeroed, no need to it ourself. - * Doc says should be OK for EISA bus as well - Jean II */ - lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr); - if (!lp->page_vaddr_algn) { - err = -ENOMEM; - goto out_mem_ptr; - } - lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); - -#ifdef HP100_DEBUG_BM - 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); -#endif - lp->rxrcommit = lp->txrcommit = 0; - lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); - lp->txrhead = lp->txrtail = &(lp->txring[0]); - } - - /* Initialise the card. */ - /* (I'm not really sure if it's a good idea to do this during probing, but - * like this it's assured that the lan connection type can be sensed - * correctly) - */ - hp100_hwinit(dev); - - /* Try to find out which kind of LAN the card is connected to. */ - lp->lan_type = hp100_sense_lan(dev); - - /* Print out a message what about what we think we have probed. */ - printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); - switch (bus) { - case HP100_BUS_EISA: - printk("EISA"); - break; - case HP100_BUS_PCI: - printk("PCI"); - break; - default: - printk("ISA"); - break; - } - printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); - - if (lp->mode == 2) { /* memory mapped */ - printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, - (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); - if (mem_ptr_virt) - printk(" (virtual base %p)", mem_ptr_virt); - printk(".\n"); - - /* Set for info when doing ifconfig */ - dev->mem_start = mem_ptr_phys; - dev->mem_end = mem_ptr_phys + lp->memory_size; - } - - printk("hp100: "); - if (lp->lan_type != HP100_LAN_ERR) - printk("Adapter is attached to "); - switch (lp->lan_type) { - case HP100_LAN_100: - printk("100Mb/s Voice Grade AnyLAN network.\n"); - break; - case HP100_LAN_10: - printk("10Mb/s network (10baseT).\n"); - break; - case HP100_LAN_COAX: - printk("10Mb/s network (coax).\n"); - break; - default: - printk("Warning! Link down.\n"); - } - - err = register_netdev(dev); - if (err) - goto out3; - - return 0; -out3: - if (local_mode == 1) - pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, - lp->page_vaddr_algn, - virt_to_whatever(dev, lp->page_vaddr_algn)); -out_mem_ptr: - if (mem_ptr_virt) - iounmap(mem_ptr_virt); -out2: - release_region(ioaddr, HP100_REGION_SIZE); -out1: - return err; -} - -/* This procedure puts the card into a stable init state */ -static void hp100_hwinit(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4202, TRACE); - printk("hp100: %s: hwinit\n", dev->name); -#endif - - /* Initialise the card. -------------------------------------------- */ - - /* Clear all pending Ints and disable Ints */ - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ - - hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); - hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); - - if (lp->mode == 1) { - hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ - wait(); - } else { - hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); - hp100_cascade_reset(dev, 1); - hp100_page(MAC_CTRL); - hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); - } - - /* Initiate EEPROM reload */ - hp100_load_eeprom(dev, 0); - - wait(); - - /* Go into reset again. */ - hp100_cascade_reset(dev, 1); - - /* Set Option Registers to a safe state */ - hp100_outw(HP100_DEBUG_EN | - HP100_RX_HDR | - HP100_EE_EN | - HP100_BM_WRITE | - HP100_BM_READ | HP100_RESET_HB | - HP100_FAKE_INT | - HP100_INT_EN | - HP100_MEM_EN | - HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); - - hp100_outw(HP100_TRI_INT | - HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); - - hp100_outb(HP100_PRIORITY_TX | - HP100_ADV_NXT_PKT | - HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); - - /* TODO: Configure MMU for Ram Test. */ - /* TODO: Ram Test. */ - - /* Re-check if adapter is still at same i/o location */ - /* (If the base i/o in eeprom has been changed but the */ - /* registers had not been changed, a reload of the eeprom */ - /* would move the adapter to the address stored in eeprom */ - - /* TODO: Code to implement. */ - - /* Until here it was code from HWdiscover procedure. */ - /* Next comes code from mmuinit procedure of SCO BM driver which is - * called from HWconfigure in the SCO driver. */ - - /* Initialise MMU, eventually switch on Busmaster Mode, initialise - * multicast filter... - */ - hp100_mmuinit(dev); - - /* We don't turn the interrupts on here - this is done by start_interface. */ - wait(); /* TODO: Do we really need this? */ - - /* Enable Hardware (e.g. unreset) */ - hp100_cascade_reset(dev, 0); - - /* ------- initialisation complete ----------- */ - - /* Finally try to log in the Hub if there may be a VG connection. */ - if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) - hp100_login_to_vg_hub(dev, 0); /* relogin */ - -} - - -/* - * mmuinit - Reinitialise Cascade MMU and MAC settings. - * Note: Must already be in reset and leaves card in reset. - */ -static void hp100_mmuinit(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - int i; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4203, TRACE); - printk("hp100: %s: mmuinit\n", dev->name); -#endif - -#ifdef HP100_DEBUG - if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { - printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); - return; - } -#endif - - /* Make sure IRQs are masked off and ack'ed. */ - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ - - /* - * Enable Hardware - * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En - * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable - * - Clear Priority, Advance Pkt and Xmit Cmd - */ - - hp100_outw(HP100_DEBUG_EN | - HP100_RX_HDR | - HP100_EE_EN | HP100_RESET_HB | - HP100_IO_EN | - HP100_FAKE_INT | - HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); - - hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); - - if (lp->mode == 1) { /* busmaster */ - hp100_outw(HP100_BM_WRITE | - HP100_BM_READ | - HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); - } else if (lp->mode == 2) { /* memory mapped */ - hp100_outw(HP100_BM_WRITE | - HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); - hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); - hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); - hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); - } else if (lp->mode == 3) { /* i/o mapped mode */ - hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | - HP100_IO_EN | HP100_SET_LB, OPTION_LSW); - } - - hp100_page(HW_MAP); - hp100_outb(0, EARLYRXCFG); - hp100_outw(0, EARLYTXCFG); - - /* - * Enable Bus Master mode - */ - if (lp->mode == 1) { /* busmaster */ - /* Experimental: Set some PCI configuration bits */ - hp100_page(HW_MAP); - hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ - hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ - - /* PCI Bus failures should result in a Misc. Interrupt */ - hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); - - hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); - hp100_page(HW_MAP); - /* Use Burst Mode and switch on PAGE_CK */ - hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); - if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) - hp100_orb(HP100_BM_PAGE_CK, BM); - hp100_orb(HP100_BM_MASTER, BM); - } else { /* not busmaster */ - - hp100_page(HW_MAP); - hp100_andb(~HP100_BM_MASTER, BM); - } - - /* - * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs - */ - hp100_page(MMU_CFG); - if (lp->mode == 1) { /* only needed for Busmaster */ - int xmit_stop, recv_stop; - - if ((lp->chip == HP100_CHIPID_RAINIER) || - (lp->chip == HP100_CHIPID_SHASTA)) { - int pdl_stop; - - /* - * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and - * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded - * to the next higher 1k boundary) bytes for the rx-pdl's - * Note: For non-etr chips the transmit stop register must be - * programmed on a 1k boundary, i.e. bits 9:0 must be zero. - */ - pdl_stop = lp->memory_size; - xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); - recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); - hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); -#ifdef HP100_DEBUG_BM - printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); -#endif - } else { - /* ETR chip (Lassen) in busmaster mode */ - xmit_stop = (lp->memory_size) - 1; - recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); - } - - hp100_outw(xmit_stop >> 4, TX_MEM_STOP); - hp100_outw(recv_stop >> 4, RX_MEM_STOP); -#ifdef HP100_DEBUG_BM - printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); - printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); -#endif - } else { - /* Slave modes (memory mapped and programmed io) */ - hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); - hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); -#ifdef HP100_DEBUG - printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); - printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); -#endif - } - - /* Write MAC address into page 1 */ - hp100_page(MAC_ADDRESS); - for (i = 0; i < 6; i++) - hp100_outb(dev->dev_addr[i], MAC_ADDR + i); - - /* Zero the multicast hash registers */ - for (i = 0; i < 8; i++) - hp100_outb(0x0, HASH_BYTE0 + i); - - /* Set up MAC defaults */ - hp100_page(MAC_CTRL); - - /* Go to LAN Page and zero all filter bits */ - /* Zero accept error, accept multicast, accept broadcast and accept */ - /* all directed packet bits */ - hp100_andb(~(HP100_RX_EN | - HP100_TX_EN | - HP100_ACC_ERRORED | - HP100_ACC_MC | - HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); - - hp100_outb(0x00, MAC_CFG_2); - - /* Zero the frame format bit. This works around a training bug in the */ - /* new hubs. */ - hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ - - if (lp->priority_tx) - hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); - else - hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); - - hp100_outb(HP100_ADV_NXT_PKT | - HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); - - /* If busmaster, initialize the PDLs */ - if (lp->mode == 1) - hp100_init_pdls(dev); - - /* Go to performance page and initialize isr and imr registers */ - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ -} - -/* - * open/close functions - */ - -static int hp100_open(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); -#ifdef HP100_DEBUG_B - int ioaddr = dev->base_addr; -#endif - -#ifdef HP100_DEBUG_B - hp100_outw(0x4204, TRACE); - printk("hp100: %s: open\n", dev->name); -#endif - - /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ - if (request_irq(dev->irq, hp100_interrupt, - lp->bus == HP100_BUS_PCI || lp->bus == - HP100_BUS_EISA ? IRQF_SHARED : 0, - dev->name, dev)) { - printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); - return -EAGAIN; - } - - netif_trans_update(dev); /* prevent tx timeout */ - netif_start_queue(dev); - - lp->lan_type = hp100_sense_lan(dev); - lp->mac1_mode = HP100_MAC1MODE3; - lp->mac2_mode = HP100_MAC2MODE3; - memset(&lp->hash_bytes, 0x00, 8); - - hp100_stop_interface(dev); - - hp100_hwinit(dev); - - hp100_start_interface(dev); /* sets mac modes, enables interrupts */ - - return 0; -} - -/* The close function is called when the interface is to be brought down */ -static int hp100_close(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4205, TRACE); - printk("hp100: %s: close\n", dev->name); -#endif - - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ - - hp100_stop_interface(dev); - - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - - netif_stop_queue(dev); - - free_irq(dev->irq, dev); - -#ifdef HP100_DEBUG - printk("hp100: %s: close LSW = 0x%x\n", dev->name, - hp100_inw(OPTION_LSW)); -#endif - - return 0; -} - - -/* - * Configure the PDL Rx rings and LAN - */ -static void hp100_init_pdls(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); - hp100_ring_t *ringptr; - u_int *pageptr; /* Warning : increment by 4 - Jean II */ - int i; - -#ifdef HP100_DEBUG_B - int ioaddr = dev->base_addr; -#endif - -#ifdef HP100_DEBUG_B - hp100_outw(0x4206, TRACE); - printk("hp100: %s: init pdls\n", dev->name); -#endif - - if (!lp->page_vaddr_algn) - printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); - else { - /* pageptr shall point into the DMA accessible memory region */ - /* we use this pointer to status the upper limit of allocated */ - /* memory in the allocated page. */ - /* note: align the pointers to the pci cache line size */ - memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ - pageptr = lp->page_vaddr_algn; - - lp->rxrcommit = 0; - ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); - - /* Initialise Rx Ring */ - for (i = MAX_RX_PDL - 1; i >= 0; i--) { - lp->rxring[i].next = ringptr; - ringptr = &(lp->rxring[i]); - pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); - } - - /* Initialise Tx Ring */ - lp->txrcommit = 0; - ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); - for (i = MAX_TX_PDL - 1; i >= 0; i--) { - lp->txring[i].next = ringptr; - ringptr = &(lp->txring[i]); - pageptr += hp100_init_txpdl(dev, ringptr, pageptr); - } - } -} - - -/* These functions "format" the entries in the pdl structure */ -/* They return how much memory the fragments need. */ -static int hp100_init_rxpdl(struct net_device *dev, - register hp100_ring_t * ringptr, - register u32 * pdlptr) -{ - /* pdlptr is starting address for this pdl */ - - if (0 != (((unsigned long) pdlptr) & 0xf)) - printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", - dev->name, (unsigned long) pdlptr); - - ringptr->pdl = pdlptr + 1; - ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); - ringptr->skb = NULL; - - /* - * Write address and length of first PDL Fragment (which is used for - * storing the RX-Header - * We use the 4 bytes _before_ the PDH in the pdl memory area to - * store this information. (PDH is at offset 0x04) - */ - /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ - - *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ - *(pdlptr + 3) = 4; /* Length Frag 1 */ - - return roundup(MAX_RX_FRAG * 2 + 2, 4); -} - - -static int hp100_init_txpdl(struct net_device *dev, - register hp100_ring_t * ringptr, - register u32 * pdlptr) -{ - if (0 != (((unsigned long) pdlptr) & 0xf)) - printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); - - ringptr->pdl = pdlptr; /* +1; */ - ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ - ringptr->skb = NULL; - - return roundup(MAX_TX_FRAG * 2 + 2, 4); -} - -/* - * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes - * for possible odd word alignment rounding up to next dword and set PDL - * address for fragment#2 - * Returns: 0 if unable to allocate skb_buff - * 1 if successful - */ -static int hp100_build_rx_pdl(hp100_ring_t * ringptr, - struct net_device *dev) -{ -#ifdef HP100_DEBUG_B - int ioaddr = dev->base_addr; -#endif -#ifdef HP100_DEBUG_BM - u_int *p; -#endif - -#ifdef HP100_DEBUG_B - hp100_outw(0x4207, TRACE); - printk("hp100: %s: build rx pdl\n", dev->name); -#endif - - /* Allocate skb buffer of maximum size */ - /* Note: This depends on the alloc_skb functions allocating more - * space than requested, i.e. aligning to 16bytes */ - - ringptr->skb = netdev_alloc_skb(dev, roundup(MAX_ETHER_SIZE + 2, 4)); - - if (NULL != ringptr->skb) { - /* - * Reserve 2 bytes at the head of the buffer to land the IP header - * on a long word boundary (According to the Network Driver section - * in the Linux KHG, this should help to increase performance.) - */ - skb_reserve(ringptr->skb, 2); - - ringptr->skb->data = skb_put(ringptr->skb, MAX_ETHER_SIZE); - - /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ - /* Note: 1st Fragment is used for the 4 byte packet status - * (receive header). Its PDL entries are set up by init_rxpdl. So - * here we only have to set up the PDL fragment entries for the data - * part. Those 4 bytes will be stored in the DMA memory region - * directly before the PDL. - */ -#ifdef HP100_DEBUG_BM - printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", - dev->name, (u_int) ringptr->pdl, - roundup(MAX_ETHER_SIZE + 2, 4), - (unsigned int) ringptr->skb->data); -#endif - - /* Conversion to new PCI API : map skbuf data to PCI bus. - * Doc says it's OK for EISA as well - Jean II */ - ringptr->pdl[0] = 0x00020000; /* Write PDH */ - ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), - ringptr->skb->data); - ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ - -#ifdef HP100_DEBUG_BM - for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) - printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); -#endif - return 1; - } - /* else: */ - /* alloc_skb failed (no memory) -> still can receive the header - * fragment into PDL memory. make PDL safe by clearing msgptr and - * making the PDL only 1 fragment (i.e. the 4 byte packet status) - */ -#ifdef HP100_DEBUG_BM - printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); -#endif - - ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ - - return 0; -} - -/* - * hp100_rxfill - attempt to fill the Rx Ring will empty skb's - * - * Makes assumption that skb's are always contiguous memory areas and - * therefore PDLs contain only 2 physical fragments. - * - While the number of Rx PDLs with buffers is less than maximum - * a. Get a maximum packet size skb - * b. Put the physical address of the buffer into the PDL. - * c. Output physical address of PDL to adapter. - */ -static void hp100_rxfill(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - - struct hp100_private *lp = netdev_priv(dev); - hp100_ring_t *ringptr; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4208, TRACE); - printk("hp100: %s: rxfill\n", dev->name); -#endif - - hp100_page(PERFORMANCE); - - while (lp->rxrcommit < MAX_RX_PDL) { - /* - ** Attempt to get a buffer and build a Rx PDL. - */ - ringptr = lp->rxrtail; - if (0 == hp100_build_rx_pdl(ringptr, dev)) { - return; /* None available, return */ - } - - /* Hand this PDL over to the card */ - /* Note: This needs performance page selected! */ -#ifdef HP100_DEBUG_BM - printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", - dev->name, lp->rxrcommit, (u_int) ringptr->pdl, - (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); -#endif - - hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); - - lp->rxrcommit += 1; - lp->rxrtail = ringptr->next; - } -} - -/* - * BM_shutdown - shutdown bus mastering and leave chip in reset state - */ - -static void hp100_BM_shutdown(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - unsigned long time; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4209, TRACE); - printk("hp100: %s: bm shutdown\n", dev->name); -#endif - - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ - - /* Ensure Interrupts are off */ - hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); - - /* Disable all MAC activity */ - hp100_page(MAC_CTRL); - hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ - - /* If cascade MMU is not already in reset */ - if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { - /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so - * MMU pointers will not be reset out from underneath - */ - hp100_page(MAC_CTRL); - for (time = 0; time < 5000; time++) { - if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) - break; - } - - /* Shutdown algorithm depends on the generation of Cascade */ - if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ - /* Disable Busmaster mode and wait for bit to go to zero. */ - hp100_page(HW_MAP); - hp100_andb(~HP100_BM_MASTER, BM); - /* 100 ms timeout */ - for (time = 0; time < 32000; time++) { - if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) - break; - } - } else { /* Shasta or Rainier Shutdown/Reset */ - /* To ensure all bus master inloading activity has ceased, - * wait for no Rx PDAs or no Rx packets on card. - */ - hp100_page(PERFORMANCE); - /* 100 ms timeout */ - for (time = 0; time < 10000; time++) { - /* RX_PDL: PDLs not executed. */ - /* RX_PKT_CNT: RX'd packets on card. */ - if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) - break; - } - - if (time >= 10000) - printk("hp100: %s: BM shutdown error.\n", dev->name); - - /* To ensure all bus master outloading activity has ceased, - * wait until the Tx PDA count goes to zero or no more Tx space - * available in the Tx region of the card. - */ - /* 100 ms timeout */ - for (time = 0; time < 10000; time++) { - if ((0 == hp100_inb(TX_PKT_CNT)) && - (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) - break; - } - - /* Disable Busmaster mode */ - hp100_page(HW_MAP); - hp100_andb(~HP100_BM_MASTER, BM); - } /* end of shutdown procedure for non-etr parts */ - - hp100_cascade_reset(dev, 1); - } - hp100_page(PERFORMANCE); - /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ - /* Busmaster mode should be shut down now. */ -} - -static int hp100_check_lan(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); - - if (lp->lan_type < 0) { /* no LAN type detected yet? */ - hp100_stop_interface(dev); - if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { - printk("hp100: %s: no connection found - check wire\n", dev->name); - hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ - return -EIO; - } - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ - hp100_start_interface(dev); - } - return 0; -} - -/* - * transmit functions - */ - -/* tx function for busmaster mode */ -static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, - struct net_device *dev) -{ - unsigned long flags; - int i, ok_flag; - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - hp100_ring_t *ringptr; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4210, TRACE); - printk("hp100: %s: start_xmit_bm\n", dev->name); -#endif - if (skb->len <= 0) - goto drop; - - if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) - return NETDEV_TX_OK; - - /* Get Tx ring tail pointer */ - if (lp->txrtail->next == lp->txrhead) { - /* No memory. */ -#ifdef HP100_DEBUG - printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); -#endif - /* not waited long enough since last tx? */ - if (time_before(jiffies, dev_trans_start(dev) + HZ)) - goto drop; - - if (hp100_check_lan(dev)) - goto drop; - - if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { - /* we have a 100Mb/s adapter but it isn't connected to hub */ - printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); - hp100_stop_interface(dev); - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - } else { - spin_lock_irqsave(&lp->lock, flags); - hp100_ints_off(); /* Useful ? Jean II */ - i = hp100_sense_lan(dev); - hp100_ints_on(); - spin_unlock_irqrestore(&lp->lock, flags); - if (i == HP100_LAN_ERR) - printk("hp100: %s: link down detected\n", dev->name); - else if (lp->lan_type != i) { /* cable change! */ - /* it's very hard - all network settings must be changed!!! */ - printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); - lp->lan_type = i; - hp100_stop_interface(dev); - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - } else { - printk("hp100: %s: interface reset\n", dev->name); - hp100_stop_interface(dev); - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - } - } - - goto drop; - } - - /* - * we have to turn int's off before modifying this, otherwise - * a tx_pdl_cleanup could occur at the same time - */ - spin_lock_irqsave(&lp->lock, flags); - ringptr = lp->txrtail; - lp->txrtail = ringptr->next; - - /* Check whether packet has minimal packet size */ - ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; - i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; - - ringptr->skb = skb; - ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ - if (lp->chip == HP100_CHIPID_SHASTA) { - /* TODO:Could someone who has the EISA card please check if this works? */ - ringptr->pdl[2] = i; - } else { /* Lassen */ - /* In the PDL, don't use the padded size but the real packet size: */ - ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ - } - /* Conversion to new PCI API : map skbuf data to PCI bus. - * Doc says it's OK for EISA as well - Jean II */ - ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ - - /* Hand this PDL to the card. */ - hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ - - lp->txrcommit++; - - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - - spin_unlock_irqrestore(&lp->lock, flags); - - return NETDEV_TX_OK; - -drop: - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - - -/* clean_txring checks if packets have been sent by the card by reading - * the TX_PDL register from the performance page and comparing it to the - * number of committed packets. It then frees the skb's of the packets that - * obviously have been sent to the network. - * - * Needs the PERFORMANCE page selected. - */ -static void hp100_clean_txring(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - int donecount; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4211, TRACE); - printk("hp100: %s: clean txring\n", dev->name); -#endif - - /* How many PDLs have been transmitted? */ - donecount = (lp->txrcommit) - hp100_inb(TX_PDL); - -#ifdef HP100_DEBUG - if (donecount > MAX_TX_PDL) - printk("hp100: %s: Warning: More PDLs transmitted than committed to card???\n", dev->name); -#endif - - for (; 0 != donecount; donecount--) { -#ifdef HP100_DEBUG_BM - printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", - dev->name, (u_int) lp->txrhead->skb->data, - lp->txrcommit, hp100_inb(TX_PDL), donecount); -#endif - /* Conversion to new PCI API : NOP */ - pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); - dev_consume_skb_any(lp->txrhead->skb); - lp->txrhead->skb = NULL; - lp->txrhead = lp->txrhead->next; - lp->txrcommit--; - } -} - -/* tx function for slave modes */ -static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - unsigned long flags; - int i, ok_flag; - int ioaddr = dev->base_addr; - u_short val; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4212, TRACE); - printk("hp100: %s: start_xmit\n", dev->name); -#endif - if (skb->len <= 0) - goto drop; - - if (hp100_check_lan(dev)) - goto drop; - - /* If there is not enough free memory on the card... */ - i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; - if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { -#ifdef HP100_DEBUG - printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); -#endif - /* not waited long enough since last failed tx try? */ - if (time_before(jiffies, dev_trans_start(dev) + HZ)) { -#ifdef HP100_DEBUG - printk("hp100: %s: trans_start timing problem\n", - dev->name); -#endif - goto drop; - } - if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { - /* we have a 100Mb/s adapter but it isn't connected to hub */ - printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); - hp100_stop_interface(dev); - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - } else { - spin_lock_irqsave(&lp->lock, flags); - hp100_ints_off(); /* Useful ? Jean II */ - i = hp100_sense_lan(dev); - hp100_ints_on(); - spin_unlock_irqrestore(&lp->lock, flags); - if (i == HP100_LAN_ERR) - printk("hp100: %s: link down detected\n", dev->name); - else if (lp->lan_type != i) { /* cable change! */ - /* it's very hard - all network setting must be changed!!! */ - printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); - lp->lan_type = i; - hp100_stop_interface(dev); - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - } else { - printk("hp100: %s: interface reset\n", dev->name); - hp100_stop_interface(dev); - if (lp->lan_type == HP100_LAN_100) - lp->hub_status = hp100_login_to_vg_hub(dev, 0); - hp100_start_interface(dev); - mdelay(1); - } - } - goto drop; - } - - for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { -#ifdef HP100_DEBUG_TX - printk("hp100: %s: start_xmit: busy\n", dev->name); -#endif - } - - spin_lock_irqsave(&lp->lock, flags); - hp100_ints_off(); - val = hp100_inw(IRQ_STATUS); - /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set - * when the current packet being transmitted on the wire is completed. */ - hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); -#ifdef HP100_DEBUG_TX - printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", - dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); -#endif - - ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; - i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; - - hp100_outw(i, DATA32); /* tell card the total packet length */ - hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ - - if (lp->mode == 2) { /* memory mapped */ - /* Note: The J2585B needs alignment to 32bits here! */ - memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); - if (!ok_flag) - memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); - } else { /* programmed i/o */ - outsl(ioaddr + HP100_REG_DATA32, skb->data, - (skb->len + 3) >> 2); - if (!ok_flag) - for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) - hp100_outl(0, DATA32); - } - - hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ - - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - hp100_ints_on(); - spin_unlock_irqrestore(&lp->lock, flags); - - dev_consume_skb_any(skb); - -#ifdef HP100_DEBUG_TX - printk("hp100: %s: start_xmit: end\n", dev->name); -#endif - - return NETDEV_TX_OK; - -drop: - dev_kfree_skb(skb); - return NETDEV_TX_OK; - -} - - -/* - * Receive Function (Non-Busmaster mode) - * Called when an "Receive Packet" interrupt occurs, i.e. the receive - * packet counter is non-zero. - * For non-busmaster, this function does the whole work of transferring - * the packet to the host memory and then up to higher layers via skb - * and netif_rx. - */ - -static void hp100_rx(struct net_device *dev) -{ - int packets, pkt_len; - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - u_int header; - struct sk_buff *skb; - -#ifdef DEBUG_B - hp100_outw(0x4213, TRACE); - printk("hp100: %s: rx\n", dev->name); -#endif - - /* First get indication of received lan packet */ - /* RX_PKT_CND indicates the number of packets which have been fully */ - /* received onto the card but have not been fully transferred of the card */ - packets = hp100_inb(RX_PKT_CNT); -#ifdef HP100_DEBUG_RX - if (packets > 1) - printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); -#endif - - while (packets-- > 0) { - /* If ADV_NXT_PKT is still set, we have to wait until the card has */ - /* really advanced to the next packet. */ - for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { -#ifdef HP100_DEBUG_RX - printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); -#endif - } - - /* First we get the header, which contains information about the */ - /* actual length of the received packet. */ - if (lp->mode == 2) { /* memory mapped mode */ - header = readl(lp->mem_ptr_virt); - } else /* programmed i/o */ - header = hp100_inl(DATA32); - - pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; - -#ifdef HP100_DEBUG_RX - printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", - dev->name, header & HP100_PKT_LEN_MASK, - (header >> 16) & 0xfff8, (header >> 16) & 7); -#endif - - /* Now we allocate the skb and transfer the data into it. */ - skb = netdev_alloc_skb(dev, pkt_len + 2); - if (skb == NULL) { /* Not enough memory->drop packet */ -#ifdef HP100_DEBUG - printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", - dev->name, pkt_len); -#endif - dev->stats.rx_dropped++; - } else { /* skb successfully allocated */ - - u_char *ptr; - - skb_reserve(skb,2); - - /* ptr to start of the sk_buff data area */ - skb_put(skb, pkt_len); - ptr = skb->data; - - /* Now transfer the data from the card into that area */ - if (lp->mode == 2) - memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); - else /* io mapped */ - insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); - - skb->protocol = eth_type_trans(skb, dev); - -#ifdef HP100_DEBUG_RX - printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - dev->name, ptr[0], ptr[1], ptr[2], ptr[3], - ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], - ptr[9], ptr[10], ptr[11]); -#endif - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - - /* Indicate the card that we have got the packet */ - hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); - - switch (header & 0x00070000) { - case (HP100_MULTI_ADDR_HASH << 16): - case (HP100_MULTI_ADDR_NO_HASH << 16): - dev->stats.multicast++; - break; - } - } /* end of while(there are packets) loop */ -#ifdef HP100_DEBUG_RX - printk("hp100_rx: %s: end\n", dev->name); -#endif -} - -/* - * Receive Function for Busmaster Mode - */ -static void hp100_rx_bm(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - hp100_ring_t *ptr; - u_int header; - int pkt_len; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4214, TRACE); - printk("hp100: %s: rx_bm\n", dev->name); -#endif - -#ifdef HP100_DEBUG - if (0 == lp->rxrcommit) { - printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); - return; - } else - /* RX_PKT_CNT states how many PDLs are currently formatted and available to - * the cards BM engine */ - if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { - printk("hp100: %s: More packets received than committed? RX_PKT_CNT=0x%x, commit=0x%x\n", - dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, - lp->rxrcommit); - return; - } -#endif - - while ((lp->rxrcommit > hp100_inb(RX_PDL))) { - /* - * The packet was received into the pdl pointed to by lp->rxrhead ( - * the oldest pdl in the ring - */ - - /* First we get the header, which contains information about the */ - /* actual length of the received packet. */ - - ptr = lp->rxrhead; - - header = *(ptr->pdl - 1); - pkt_len = (header & HP100_PKT_LEN_MASK); - - /* Conversion to new PCI API : NOP */ - pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); - -#ifdef HP100_DEBUG_BM - printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", - dev->name, (u_int) (ptr->pdl - 1), (u_int) header, - pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); - 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", - dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), - hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), - (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); -#endif - - if ((pkt_len >= MIN_ETHER_SIZE) && - (pkt_len <= MAX_ETHER_SIZE)) { - if (ptr->skb == NULL) { - printk("hp100: %s: rx_bm: skb null\n", dev->name); - /* can happen if we only allocated room for the pdh due to memory shortage. */ - dev->stats.rx_dropped++; - } else { - skb_trim(ptr->skb, pkt_len); /* Shorten it */ - ptr->skb->protocol = - eth_type_trans(ptr->skb, dev); - - netif_rx(ptr->skb); /* Up and away... */ - - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - - switch (header & 0x00070000) { - case (HP100_MULTI_ADDR_HASH << 16): - case (HP100_MULTI_ADDR_NO_HASH << 16): - dev->stats.multicast++; - break; - } - } else { -#ifdef HP100_DEBUG - printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); -#endif - if (ptr->skb != NULL) - dev_kfree_skb_any(ptr->skb); - dev->stats.rx_errors++; - } - - lp->rxrhead = lp->rxrhead->next; - - /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ - if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { - /* No space for skb, header can still be received. */ -#ifdef HP100_DEBUG - printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); -#endif - return; - } else { /* successfully allocated new PDL - put it in ringlist at tail. */ - hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); - lp->rxrtail = lp->rxrtail->next; - } - - } -} - -/* - * statistics - */ -static struct net_device_stats *hp100_get_stats(struct net_device *dev) -{ - unsigned long flags; - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4215, TRACE); -#endif - - spin_lock_irqsave(&lp->lock, flags); - hp100_ints_off(); /* Useful ? Jean II */ - hp100_update_stats(dev); - hp100_ints_on(); - spin_unlock_irqrestore(&lp->lock, flags); - return &(dev->stats); -} - -static void hp100_update_stats(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - u_short val; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4216, TRACE); - printk("hp100: %s: update-stats\n", dev->name); -#endif - - /* Note: Statistics counters clear when read. */ - hp100_page(MAC_CTRL); - val = hp100_inw(DROPPED) & 0x0fff; - dev->stats.rx_errors += val; - dev->stats.rx_over_errors += val; - val = hp100_inb(CRC); - dev->stats.rx_errors += val; - dev->stats.rx_crc_errors += val; - val = hp100_inb(ABORT); - dev->stats.tx_errors += val; - dev->stats.tx_aborted_errors += val; - hp100_page(PERFORMANCE); -} - -static void hp100_misc_interrupt(struct net_device *dev) -{ -#ifdef HP100_DEBUG_B - int ioaddr = dev->base_addr; -#endif - -#ifdef HP100_DEBUG_B - int ioaddr = dev->base_addr; - hp100_outw(0x4216, TRACE); - printk("hp100: %s: misc_interrupt\n", dev->name); -#endif - - /* Note: Statistics counters clear when read. */ - dev->stats.rx_errors++; - dev->stats.tx_errors++; -} - -static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) -{ - unsigned long flags; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4217, TRACE); - printk("hp100: %s: clear_stats\n", dev->name); -#endif - - spin_lock_irqsave(&lp->lock, flags); - hp100_page(MAC_CTRL); /* get all statistics bytes */ - hp100_inw(DROPPED); - hp100_inb(CRC); - hp100_inb(ABORT); - hp100_page(PERFORMANCE); - spin_unlock_irqrestore(&lp->lock, flags); -} - - -/* - * multicast setup - */ - -/* - * Set or clear the multicast filter for this adapter. - */ - -static void hp100_set_multicast_list(struct net_device *dev) -{ - unsigned long flags; - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4218, TRACE); - printk("hp100: %s: set_mc_list\n", dev->name); -#endif - - spin_lock_irqsave(&lp->lock, flags); - hp100_ints_off(); - hp100_page(MAC_CTRL); - hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ - - if (dev->flags & IFF_PROMISC) { - lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ - lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ - memset(&lp->hash_bytes, 0xff, 8); - } else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI)) { - lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ - lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ -#ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ - if (dev->flags & IFF_ALLMULTI) { - /* set hash filter to receive all multicast packets */ - memset(&lp->hash_bytes, 0xff, 8); - } else { - int i, idx; - u_char *addrs; - struct netdev_hw_addr *ha; - - memset(&lp->hash_bytes, 0x00, 8); -#ifdef HP100_DEBUG - printk("hp100: %s: computing hash filter - mc_count = %i\n", - dev->name, netdev_mc_count(dev)); -#endif - netdev_for_each_mc_addr(ha, dev) { - addrs = ha->addr; -#ifdef HP100_DEBUG - printk("hp100: %s: multicast = %pM, ", - dev->name, addrs); -#endif - for (i = idx = 0; i < 6; i++) { - idx ^= *addrs++ & 0x3f; - printk(":%02x:", idx); - } -#ifdef HP100_DEBUG - printk("idx = %i\n", idx); -#endif - lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); - } - } -#else - memset(&lp->hash_bytes, 0xff, 8); -#endif - } else { - lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ - lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ - memset(&lp->hash_bytes, 0x00, 8); - } - - if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || - (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { - int i; - - hp100_outb(lp->mac2_mode, MAC_CFG_2); - hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ - hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ - - hp100_page(MAC_ADDRESS); - for (i = 0; i < 8; i++) - hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); -#ifdef HP100_DEBUG - printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", - dev->name, lp->mac1_mode, lp->mac2_mode, - lp->hash_bytes[0], lp->hash_bytes[1], - lp->hash_bytes[2], lp->hash_bytes[3], - lp->hash_bytes[4], lp->hash_bytes[5], - lp->hash_bytes[6], lp->hash_bytes[7]); -#endif - - if (lp->lan_type == HP100_LAN_100) { -#ifdef HP100_DEBUG - printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); -#endif - lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ - } - } else { - int i; - u_char old_hash_bytes[8]; - - hp100_page(MAC_ADDRESS); - for (i = 0; i < 8; i++) - old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); - if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { - for (i = 0; i < 8; i++) - hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); -#ifdef HP100_DEBUG - printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", - dev->name, lp->hash_bytes[0], - lp->hash_bytes[1], lp->hash_bytes[2], - lp->hash_bytes[3], lp->hash_bytes[4], - lp->hash_bytes[5], lp->hash_bytes[6], - lp->hash_bytes[7]); -#endif - - if (lp->lan_type == HP100_LAN_100) { -#ifdef HP100_DEBUG - printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); -#endif - lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ - } - } - } - - hp100_page(MAC_CTRL); - hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ - HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ - - hp100_page(PERFORMANCE); - hp100_ints_on(); - spin_unlock_irqrestore(&lp->lock, flags); -} - -/* - * hardware interrupt handling - */ - -static irqreturn_t hp100_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *) dev_id; - struct hp100_private *lp = netdev_priv(dev); - - int ioaddr; - u_int val; - - if (dev == NULL) - return IRQ_NONE; - ioaddr = dev->base_addr; - - spin_lock(&lp->lock); - - hp100_ints_off(); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4219, TRACE); -#endif - - /* hp100_page( PERFORMANCE ); */ - val = hp100_inw(IRQ_STATUS); -#ifdef HP100_DEBUG_IRQ - printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", - dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), - hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); -#endif - - if (val == 0) { /* might be a shared interrupt */ - spin_unlock(&lp->lock); - hp100_ints_on(); - return IRQ_NONE; - } - /* We're only interested in those interrupts we really enabled. */ - /* val &= hp100_inw( IRQ_MASK ); */ - - /* - * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL - * is considered executed whenever the RX_PDL data structure is no longer - * needed. - */ - if (val & HP100_RX_PDL_FILL_COMPL) { - if (lp->mode == 1) - hp100_rx_bm(dev); - else { - printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); - } - } - - /* - * The RX_PACKET interrupt is set, when the receive packet counter is - * non zero. We use this interrupt for receiving in slave mode. In - * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill - * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then - * we somehow have missed a rx_pdl_fill_compl interrupt. - */ - - if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ - if (lp->mode != 1) /* non busmaster */ - hp100_rx(dev); - else if (!(val & HP100_RX_PDL_FILL_COMPL)) { - /* Shouldn't happen - maybe we missed a RX_PDL_FILL Interrupt? */ - hp100_rx_bm(dev); - } - } - - /* - * Ack. that we have noticed the interrupt and thereby allow next one. - * Note that this is now done after the slave rx function, since first - * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt - * on the J2573. - */ - hp100_outw(val, IRQ_STATUS); - - /* - * RX_ERROR is set when a packet is dropped due to no memory resources on - * the card or when a RCV_ERR occurs. - * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists - * only in the 802.3 MAC and happens when 16 collisions occur during a TX - */ - if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { -#ifdef HP100_DEBUG_IRQ - printk("hp100: %s: TX/RX Error IRQ\n", dev->name); -#endif - hp100_update_stats(dev); - if (lp->mode == 1) { - hp100_rxfill(dev); - hp100_clean_txring(dev); - } - } - - /* - * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. - */ - if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) - hp100_rxfill(dev); - - /* - * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire - * is completed - */ - if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) - hp100_clean_txring(dev); - - /* - * MISC_ERROR is set when either the LAN link goes down or a detected - * bus error occurs. - */ - if (val & HP100_MISC_ERROR) { /* New for J2585B */ -#ifdef HP100_DEBUG_IRQ - printk - ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", - dev->name); -#endif - if (lp->mode == 1) { - hp100_clean_txring(dev); - hp100_rxfill(dev); - } - hp100_misc_interrupt(dev); - } - - spin_unlock(&lp->lock); - hp100_ints_on(); - return IRQ_HANDLED; -} - -/* - * some misc functions - */ - -static void hp100_start_interface(struct net_device *dev) -{ - unsigned long flags; - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4220, TRACE); - printk("hp100: %s: hp100_start_interface\n", dev->name); -#endif - - spin_lock_irqsave(&lp->lock, flags); - - /* Ensure the adapter does not want to request an interrupt when */ - /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ - hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, - OPTION_LSW); - /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ - hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); - - if (lp->mode == 1) { - /* Make sure BM bit is set... */ - hp100_page(HW_MAP); - hp100_orb(HP100_BM_MASTER, BM); - hp100_rxfill(dev); - } else if (lp->mode == 2) { - /* Enable memory mapping. Note: Don't do this when busmaster. */ - hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); - } - - hp100_page(PERFORMANCE); - hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ - hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ - - /* enable a few interrupts: */ - if (lp->mode == 1) { /* busmaster mode */ - hp100_outw(HP100_RX_PDL_FILL_COMPL | - HP100_RX_PDA_ZERO | HP100_RX_ERROR | - /* HP100_RX_PACKET | */ - /* HP100_RX_EARLY_INT | */ HP100_SET_HB | - /* HP100_TX_PDA_ZERO | */ - HP100_TX_COMPLETE | - /* HP100_MISC_ERROR | */ - HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); - } else { - hp100_outw(HP100_RX_PACKET | - HP100_RX_ERROR | HP100_SET_HB | - HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); - } - - /* Note : before hp100_set_multicast_list(), because it will play with - * spinlock itself... Jean II */ - spin_unlock_irqrestore(&lp->lock, flags); - - /* Enable MAC Tx and RX, set MAC modes, ... */ - hp100_set_multicast_list(dev); -} - -static void hp100_stop_interface(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - u_int val; - -#ifdef HP100_DEBUG_B - printk("hp100: %s: hp100_stop_interface\n", dev->name); - hp100_outw(0x4221, TRACE); -#endif - - if (lp->mode == 1) - hp100_BM_shutdown(dev); - else { - /* Note: MMAP_DIS will be reenabled by start_interface */ - hp100_outw(HP100_INT_EN | HP100_RESET_LB | - HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, - OPTION_LSW); - val = hp100_inw(OPTION_LSW); - - hp100_page(MAC_CTRL); - hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); - - if (!(val & HP100_HW_RST)) - return; /* If reset, imm. return ... */ - /* ... else: busy wait until idle */ - for (val = 0; val < 6000; val++) - if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { - hp100_page(PERFORMANCE); - return; - } - printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); - hp100_page(PERFORMANCE); - } -} - -static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) -{ - int i; - int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4222, TRACE); -#endif - - hp100_page(EEPROM_CTRL); - hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); - hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); - for (i = 0; i < 10000; i++) - if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) - return; - printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); -} - -/* Sense connection status. - * return values: LAN_10 - Connected to 10Mbit/s network - * LAN_100 - Connected to 100Mbit/s network - * LAN_ERR - not connected or 100Mbit/s Hub down - */ -static int hp100_sense_lan(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - u_short val_VG, val_10; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4223, TRACE); -#endif - - hp100_page(MAC_CTRL); - val_10 = hp100_inb(10_LAN_CFG_1); - val_VG = hp100_inb(VG_LAN_CFG_1); - hp100_page(PERFORMANCE); -#ifdef HP100_DEBUG - printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", - dev->name, val_VG, val_10); -#endif - - if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ - return HP100_LAN_10; - - if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ - /* - * This can be overriden by dos utility, so if this has no effect, - * perhaps you need to download that utility from HP and set card - * back to "auto detect". - */ - val_10 |= HP100_AUI_SEL | HP100_LOW_TH; - hp100_page(MAC_CTRL); - hp100_outb(val_10, 10_LAN_CFG_1); - hp100_page(PERFORMANCE); - return HP100_LAN_COAX; - } - - /* Those cards don't have a 100 Mbit connector */ - if ( !strcmp(lp->id, "HWP1920") || - (lp->pci_dev && - lp->pci_dev->vendor == PCI_VENDOR_ID && - (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || - lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) - return HP100_LAN_ERR; - - if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ - return HP100_LAN_100; - return HP100_LAN_ERR; -} - -static int hp100_down_vg_link(struct net_device *dev) -{ - struct hp100_private *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - unsigned long time; - long savelan, newlan; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4224, TRACE); - printk("hp100: %s: down_vg_link\n", dev->name); -#endif - - hp100_page(MAC_CTRL); - time = jiffies + (HZ / 4); - do { - if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - - if (time_after_eq(jiffies, time)) /* no signal->no logout */ - return 0; - - /* Drop the VG Link by clearing the link up cmd and load addr. */ - - hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); - hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); - - /* Conditionally stall for >250ms on Link-Up Status (to go down) */ - time = jiffies + (HZ / 2); - do { - if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - -#ifdef HP100_DEBUG - if (time_after_eq(jiffies, time)) - printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); -#endif - - /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ - /* logout under traffic (even though all the status bits are cleared), */ - /* do this workaround to get the Rev 1 MAC in its idle state */ - if (lp->chip == HP100_CHIPID_LASSEN) { - /* Reset VG MAC to insure it leaves the logoff state even if */ - /* the Hub is still emitting tones */ - hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); - udelay(1500); /* wait for >1ms */ - hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ - udelay(1500); - } - - /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ - /* to get the VG mac to full reset. This is not req.d with later chips */ - /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ - /* selected again! This will be left to the connect hub function to */ - /* perform if desired. */ - if (lp->chip == HP100_CHIPID_LASSEN) { - /* Have to write to 10 and 100VG control registers simultaneously */ - savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ - newlan &= ~(HP100_VG_SEL << 16); - newlan |= (HP100_DOT3_MAC) << 8; - hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ - hp100_outl(newlan, 10_LAN_CFG_1); - - /* Conditionally stall for 5sec on VG selected. */ - time = jiffies + (HZ * 5); - do { - if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - - hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ - hp100_outl(savelan, 10_LAN_CFG_1); - } - - time = jiffies + (3 * HZ); /* Timeout 3s */ - do { - if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - - if (time_before_eq(time, jiffies)) { -#ifdef HP100_DEBUG - printk("hp100: %s: down_vg_link: timeout\n", dev->name); -#endif - return -EIO; - } - - time = jiffies + (2 * HZ); /* This seems to take a while.... */ - do { - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - - return 0; -} - -static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - u_short val = 0; - unsigned long time; - int startst; - -#ifdef HP100_DEBUG_B - hp100_outw(0x4225, TRACE); - printk("hp100: %s: login_to_vg_hub\n", dev->name); -#endif - - /* Initiate a login sequence iff VG MAC is enabled and either Load Address - * bit is zero or the force relogin flag is set (e.g. due to MAC address or - * promiscuous mode change) - */ - hp100_page(MAC_CTRL); - startst = hp100_inb(VG_LAN_CFG_1); - if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: Start training\n", dev->name); -#endif - - /* Ensure VG Reset bit is 1 (i.e., do not reset) */ - hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); - - /* If Lassen AND auto-select-mode AND VG tones were sensed on */ - /* entry then temporarily put them into force 100Mbit mode */ - if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) - hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); - - /* Drop the VG link by zeroing Link Up Command and Load Address */ - hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); - -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: Bring down the link\n", dev->name); -#endif - - /* Wait for link to drop */ - time = jiffies + (HZ / 10); - do { - if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - - /* Start an addressed training and optionally request promiscuous port */ - if ((dev->flags) & IFF_PROMISC) { - hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); - if (lp->chip == HP100_CHIPID_LASSEN) - hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); - } else { - hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); - /* For ETR parts we need to reset the prom. bit in the training - * register, otherwise promiscious mode won't be disabled. - */ - if (lp->chip == HP100_CHIPID_LASSEN) { - hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); - } - } - - /* With ETR parts, frame format request bits can be set. */ - if (lp->chip == HP100_CHIPID_LASSEN) - hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); - - hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); - - /* Note: Next wait could be omitted for Hood and earlier chips under */ - /* certain circumstances */ - /* TODO: check if hood/earlier and skip wait. */ - - /* Wait for either short timeout for VG tones or long for login */ - /* Wait for the card hardware to signalise link cable status ok... */ - hp100_page(MAC_CTRL); - time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ - do { - if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) - break; - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_before(jiffies, time)); - - if (time_after_eq(jiffies, time)) { -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); -#endif - } else { -#ifdef HP100_DEBUG_TRAINING - printk - ("hp100: %s: HUB tones detected. Trying to train.\n", - dev->name); -#endif - - time = jiffies + (2 * HZ); /* again a timeout */ - do { - val = hp100_inb(VG_LAN_CFG_1); - if ((val & (HP100_LINK_UP_ST))) { -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: Passed training.\n", dev->name); -#endif - break; - } - if (!in_interrupt()) - schedule_timeout_interruptible(1); - } while (time_after(time, jiffies)); - } - - /* If LINK_UP_ST is set, then we are logged into the hub. */ - if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); - if (lp->chip == HP100_CHIPID_LASSEN) { - val = hp100_inw(TRAIN_ALLOW); - printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", - dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); - printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); - printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); - } -#endif - } else { - /* If LINK_UP_ST is not set, login was not successful */ - printk("hp100: %s: Problem logging into the HUB.\n", dev->name); - if (lp->chip == HP100_CHIPID_LASSEN) { - /* Check allowed Register to find out why there is a problem. */ - val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ -#ifdef HP100_DEBUG_TRAINING - printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); -#endif - if (val & HP100_MALLOW_ACCDENIED) - printk("hp100: %s: HUB access denied.\n", dev->name); - if (val & HP100_MALLOW_CONFIGURE) - printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); - if (val & HP100_MALLOW_DUPADDR) - printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); - } - } - - /* If we have put the chip into forced 100 Mbit mode earlier, go back */ - /* to auto-select mode */ - - if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { - hp100_page(MAC_CTRL); - hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); - } - - val = hp100_inb(VG_LAN_CFG_1); - - /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ - hp100_page(PERFORMANCE); - hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); - - if (val & HP100_LINK_UP_ST) - return 0; /* login was ok */ - else { - printk("hp100: %s: Training failed.\n", dev->name); - hp100_down_vg_link(dev); - return -EIO; - } - } - /* no forced relogin & already link there->no training. */ - return -EIO; -} - -static void hp100_cascade_reset(struct net_device *dev, u_short enable) -{ - int ioaddr = dev->base_addr; - struct hp100_private *lp = netdev_priv(dev); - -#ifdef HP100_DEBUG_B - hp100_outw(0x4226, TRACE); - printk("hp100: %s: cascade_reset\n", dev->name); -#endif - - if (enable) { - hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); - if (lp->chip == HP100_CHIPID_LASSEN) { - /* Lassen requires a PCI transmit fifo reset */ - hp100_page(HW_MAP); - hp100_andb(~HP100_PCI_RESET, PCICTRL2); - hp100_orb(HP100_PCI_RESET, PCICTRL2); - /* Wait for min. 300 ns */ - /* we can't use jiffies here, because it may be */ - /* that we have disabled the timer... */ - udelay(400); - hp100_andb(~HP100_PCI_RESET, PCICTRL2); - hp100_page(PERFORMANCE); - } - } else { /* bring out of reset */ - hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); - udelay(400); - hp100_page(PERFORMANCE); - } -} - -#ifdef HP100_DEBUG -void hp100_RegisterDump(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - int Page; - int Register; - - /* Dump common registers */ - printk("hp100: %s: Cascade Register Dump\n", dev->name); - printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); - printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); - printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); - printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); - - /* Dump paged registers */ - for (Page = 0; Page < 8; Page++) { - /* Dump registers */ - printk("page: 0x%.2x\n", Page); - outw(Page, ioaddr + 0x02); - for (Register = 0x8; Register < 0x22; Register += 2) { - /* Display Register contents except data port */ - if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { - printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); - } - } - } - hp100_page(PERFORMANCE); -} -#endif - - -static void cleanup_dev(struct net_device *d) -{ - struct hp100_private *p = netdev_priv(d); - - unregister_netdev(d); - release_region(d->base_addr, HP100_REGION_SIZE); - - if (p->mode == 1) /* busmaster */ - pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, - p->page_vaddr_algn, - virt_to_whatever(d, p->page_vaddr_algn)); - if (p->mem_ptr_virt) - iounmap(p->mem_ptr_virt); - - free_netdev(d); -} - -static int hp100_eisa_probe(struct device *gendev) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); - struct eisa_device *edev = to_eisa_device(gendev); - int err; - - if (!dev) - return -ENOMEM; - - SET_NETDEV_DEV(dev, &edev->dev); - - err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); - if (err) - goto out1; - -#ifdef HP100_DEBUG - printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, - dev->base_addr); -#endif - dev_set_drvdata(gendev, dev); - return 0; - out1: - free_netdev(dev); - return err; -} - -static int hp100_eisa_remove(struct device *gendev) -{ - struct net_device *dev = dev_get_drvdata(gendev); - cleanup_dev(dev); - return 0; -} - -static struct eisa_driver hp100_eisa_driver = { - .id_table = hp100_eisa_tbl, - .driver = { - .name = "hp100", - .probe = hp100_eisa_probe, - .remove = hp100_eisa_remove, - } -}; - -static int hp100_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *dev; - int ioaddr; - u_short pci_command; - int err; - - if (pci_enable_device(pdev)) - return -ENODEV; - - dev = alloc_etherdev(sizeof(struct hp100_private)); - if (!dev) { - err = -ENOMEM; - goto out0; - } - - SET_NETDEV_DEV(dev, &pdev->dev); - - pci_read_config_word(pdev, PCI_COMMAND, &pci_command); - if (!(pci_command & PCI_COMMAND_IO)) { -#ifdef HP100_DEBUG - printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); -#endif - pci_command |= PCI_COMMAND_IO; - pci_write_config_word(pdev, PCI_COMMAND, pci_command); - } - - if (!(pci_command & PCI_COMMAND_MASTER)) { -#ifdef HP100_DEBUG - printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); -#endif - pci_command |= PCI_COMMAND_MASTER; - pci_write_config_word(pdev, PCI_COMMAND, pci_command); - } - - ioaddr = pci_resource_start(pdev, 0); - err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); - if (err) - goto out1; - -#ifdef HP100_DEBUG - printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); -#endif - pci_set_drvdata(pdev, dev); - return 0; - out1: - free_netdev(dev); - out0: - pci_disable_device(pdev); - return err; -} - -static void hp100_pci_remove(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - cleanup_dev(dev); - pci_disable_device(pdev); -} - - -static struct pci_driver hp100_pci_driver = { - .name = "hp100", - .id_table = hp100_pci_tbl, - .probe = hp100_pci_probe, - .remove = hp100_pci_remove, -}; - -/* - * module section - */ - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, " - "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); -MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); - -/* - * Note: to register three isa devices, use: - * option hp100 hp100_port=0,0,0 - * to register one card at io 0x280 as eth239, use: - * option hp100 hp100_port=0x280 - */ -#if defined(MODULE) && defined(CONFIG_ISA) -#define HP100_DEVICES 5 -/* Parameters set by insmod */ -static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; -module_param_hw_array(hp100_port, int, ioport, NULL, 0); - -/* List of devices */ -static struct net_device *hp100_devlist[HP100_DEVICES]; - -static int __init hp100_isa_init(void) -{ - struct net_device *dev; - int i, err, cards = 0; - - /* Don't autoprobe ISA bus */ - if (hp100_port[0] == 0) - return -ENODEV; - - /* Loop on all possible base addresses */ - for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { - dev = alloc_etherdev(sizeof(struct hp100_private)); - if (!dev) { - while (cards > 0) - cleanup_dev(hp100_devlist[--cards]); - - return -ENOMEM; - } - - err = hp100_isa_probe(dev, hp100_port[i]); - if (!err) - hp100_devlist[cards++] = dev; - else - free_netdev(dev); - } - - return cards > 0 ? 0 : -ENODEV; -} - -static void hp100_isa_cleanup(void) -{ - int i; - - for (i = 0; i < HP100_DEVICES; i++) { - struct net_device *dev = hp100_devlist[i]; - if (dev) - cleanup_dev(dev); - } -} -#else -#define hp100_isa_init() (0) -#define hp100_isa_cleanup() do { } while(0) -#endif - -static int __init hp100_module_init(void) -{ - int err; - - err = hp100_isa_init(); - if (err && err != -ENODEV) - goto out; - err = eisa_driver_register(&hp100_eisa_driver); - if (err && err != -ENODEV) - goto out2; - err = pci_register_driver(&hp100_pci_driver); - if (err && err != -ENODEV) - goto out3; - out: - return err; - out3: - eisa_driver_unregister (&hp100_eisa_driver); - out2: - hp100_isa_cleanup(); - goto out; -} - - -static void __exit hp100_module_exit(void) -{ - hp100_isa_cleanup(); - eisa_driver_unregister (&hp100_eisa_driver); - pci_unregister_driver (&hp100_pci_driver); -} - -module_init(hp100_module_init) -module_exit(hp100_module_exit) |