hp100.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:89k
- /*
- ** 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@suse.cz>
- **
- ** This driver has only been tested with
- ** -- HP J2585B 10/100 Mbit/s PCI Busmaster
- ** -- HP J2585A 10/100 Mbit/s PCI
- ** -- HP J2970 10 Mbit/s PCI Combo 10base-T/BNC
- ** -- HP J2973 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
- **
- **
- ** This code is free software; you can redistribute it and/or modify
- ** it under the terms of the GNU General Public License as published by
- ** the Free Software Foundation; either version 2 of the License, or
- ** (at your option) any later version.
- **
- ** This code is distributed in the hope that it will be useful,
- ** but WITHOUT ANY WARRANTY; without even the implied warranty of
- ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ** GNU General Public License for more details.
- **
- ** You should have received a copy of the GNU General Public License
- ** along with this program; if not, write to the Free Software
- ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **
- ** 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/version.h>
- #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/slab.h>
- #include <linux/interrupt.h>
- #include <linux/pci.h>
- #include <linux/spinlock.h>
- #include <asm/bitops.h>
- #include <asm/io.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <linux/types.h>
- #include <linux/config.h> /* for CONFIG_PCI */
- #include <linux/delay.h>
- #include <linux/init.h>
- #define LINUX_2_1
- typedef struct net_device_stats hp100_stats_t;
- EXPORT_NO_SYMBOLS;
- #include "hp100.h"
- /*
- * defines
- */
- #define HP100_BUS_ISA 0
- #define HP100_BUS_EISA 1
- #define HP100_BUS_PCI 2
- #ifndef PCI_DEVICE_ID_HP_J2585B
- #define PCI_DEVICE_ID_HP_J2585B 0x1031
- #endif
- #ifndef PCI_VENDOR_ID_COMPEX
- #define PCI_VENDOR_ID_COMPEX 0x11f6
- #endif
- #ifndef PCI_DEVICE_ID_COMPEX_ENET100VG4
- #define PCI_DEVICE_ID_COMPEX_ENET100VG4 0x0112
- #endif
- #ifndef PCI_VENDOR_ID_COMPEX2
- #define PCI_VENDOR_ID_COMPEX2 0x101a
- #endif
- #ifndef PCI_DEVICE_ID_COMPEX2_100VG
- #define PCI_DEVICE_ID_COMPEX2_100VG 0x0005
- #endif
- #define HP100_REGION_SIZE 0x20 /* for ioports */
- #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_eisa_id {
- u_int id;
- const char *name;
- u_char bus;
- };
- struct hp100_pci_id {
- u_short vendor;
- u_short device;
- };
- struct hp100_private {
- struct hp100_eisa_id *id;
- spinlock_t lock;
- 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 *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];
- hp100_stats_t stats;
- /* 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; /* Virtual address of allocated page */
- u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */
- int rxrcommit; /* # Rx PDLs commited to adapter */
- int txrcommit; /* # Tx PDLs commited to adapter */
- };
- /*
- * variables
- */
- static struct hp100_eisa_id hp100_eisa_ids[] = {
- /* 10/100 EISA card with revision A Cascade chip */
- {0x80F1F022, "HP J2577 rev A", HP100_BUS_EISA},
- /* 10/100 ISA card with revision A Cascade chip */
- {0x50F1F022, "HP J2573 rev A", HP100_BUS_ISA},
- /* 10 only EISA card with Cascade chip */
- {0x2019F022, "HP 27248B", HP100_BUS_EISA},
- /* 10/100 EISA card with Cascade chip */
- {0x4019F022, "HP J2577", HP100_BUS_EISA},
- /* 10/100 ISA card with Cascade chip */
- {0x5019F022, "HP J2573", HP100_BUS_ISA},
- /* 10/100 PCI card - old J2585A */
- {0x1030103c, "HP J2585A", HP100_BUS_PCI},
- /* 10/100 PCI card - new J2585B - master capable */
- {0x1041103c, "HP J2585B", HP100_BUS_PCI},
- /* 10 Mbit Combo Adapter */
- {0x1042103c, "HP J2970", HP100_BUS_PCI},
- /* 10 Mbit 10baseT Adapter */
- {0x1040103c, "HP J2973", HP100_BUS_PCI},
- /* 10/100 EISA card from Compex */
- {0x0103180e, "ReadyLink ENET100-VG4", HP100_BUS_EISA},
- /* 10/100 EISA card from Compex - FreedomLine (sq5bpf) */
- /* Note: plhbrod@mbox.vol.cz reported that same ID have ISA */
- /* version of adapter, too... */
- {0x0104180e, "FreedomLine 100/VG", HP100_BUS_EISA},
- /* 10/100 PCI card from Compex - FreedomLine
- *
- * I think this card doesn't like aic7178 scsi controller, but
- * I haven't tested this much. It works fine on diskless machines.
- * Jacek Lipkowski <sq5bpf@acid.ch.pw.edu.pl>
- */
- {0x021211f6, "FreedomLine 100/VG", HP100_BUS_PCI},
- /* 10/100 PCI card from Compex (J2585A compatible) */
- {0x011211f6, "ReadyLink ENET100-VG4", HP100_BUS_PCI},
-
- /* 10/100 PCI card from KTI */
- {0x40008e2e, "KTI DP-200", HP100_BUS_PCI }
- };
- #define HP100_EISA_IDS_SIZE (sizeof(hp100_eisa_ids)/sizeof(struct hp100_eisa_id))
- #ifdef CONFIG_PCI
- static struct hp100_pci_id hp100_pci_ids[] = {
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B},
- {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4},
- {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG}
- };
- #endif
- #define HP100_PCI_IDS_SIZE (sizeof(hp100_pci_ids)/sizeof(struct hp100_pci_id))
- #if LINUX_VERSION_CODE >= 0x20400
- static struct pci_device_id hp100_pci_tbl[] __initdata = {
- {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_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,},
- {} /* Terminating entry */
- };
- MODULE_DEVICE_TABLE(pci, hp100_pci_tbl);
- #endif /* LINUX_VERSION_CODE >= 0x20400 */
- static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
- static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
- static int hp100_mode = 1;
- MODULE_PARM(hp100_rx_ratio, "1i");
- MODULE_PARM(hp100_priority_tx, "1i");
- MODULE_PARM(hp100_mode, "1i");
- /*
- * 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 int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev);
- static int hp100_start_xmit_bm(struct sk_buff *skb,
- struct net_device *dev);
- static void hp100_rx(struct net_device *dev);
- static hp100_stats_t *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 void hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs);
- 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
- /* 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.
- */
- int __init hp100_probe(struct net_device *dev)
- {
- int base_addr = dev ? dev->base_addr : 0;
- int ioaddr = 0;
- #ifdef CONFIG_PCI
- int pci_start_index = 0;
- #endif
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4200, TRACE);
- printk("hp100: %s: proben", dev->name);
- #endif
- if (base_addr > 0xff) { /* Check a single specified location. */
- if (check_region(base_addr, HP100_REGION_SIZE))
- return -EINVAL;
- if (base_addr < 0x400)
- return hp100_probe1(dev, base_addr, HP100_BUS_ISA,
- NULL);
- if (EISA_bus && base_addr >= 0x1c38 && ((base_addr - 0x1c38) & 0x3ff) == 0)
- return hp100_probe1(dev, base_addr, HP100_BUS_EISA, NULL);
- #ifdef CONFIG_PCI
- printk("hp100: %s: You must specify card # in i/o address parameter for PCI bus...", dev->name);
- #else
- return -ENODEV;
- #endif
- } else
- #ifdef CONFIG_PCI
- if (base_addr > 0 && base_addr < 8 + 1)
- pci_start_index = 0x100 | (base_addr - 1);
- else
- #endif
- if (base_addr != 0)
- return -ENXIO;
- /* First: scan PCI bus(es) */
- #ifdef CONFIG_PCI
- if (pcibios_present()) {
- int pci_index;
- struct pci_dev *pci_dev = NULL;
- int pci_id_index;
- u_short pci_command;
- #ifdef HP100_DEBUG_PCI
- printk("hp100: %s: PCI BIOS is present, checking for devices..n", dev->name);
- #endif
- pci_index = 0;
- for (pci_id_index = 0; pci_id_index < HP100_PCI_IDS_SIZE;
- pci_id_index++) {
- while ((pci_dev = pci_find_device(hp100_pci_ids[pci_id_index].vendor,
- hp100_pci_ids[pci_id_index].device,
- pci_dev)) != NULL) {
- if (pci_index < (pci_start_index & 7)) {
- pci_index++;
- continue;
- }
- if (pci_enable_device(pci_dev))
- continue;
- /* found... */
- ioaddr = pci_resource_start(pci_dev, 0);
- if (check_region(ioaddr, HP100_REGION_SIZE))
- continue;
- pci_read_config_word(pci_dev, 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(pci_dev, 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(pci_dev, PCI_COMMAND, pci_command);
- }
- #ifdef HP100_DEBUG
- printk("hp100: %s: PCI adapter found at 0x%xn", dev->name, ioaddr);
- #endif
- if (hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pci_dev) == 0)
- return 0;
- }
- }
- }
- if (pci_start_index > 0)
- return -ENODEV;
- #endif /* CONFIG_PCI */
- /* Second: Probe all EISA possible port regions (if EISA bus present) */
- for (ioaddr = 0x1c38; EISA_bus && ioaddr < 0x10000; ioaddr += 0x400) {
- if (check_region(ioaddr, HP100_REGION_SIZE))
- continue;
- if (hp100_probe1(dev, ioaddr, HP100_BUS_EISA, NULL) == 0)
- return 0;
- }
- /* Third: Probe all ISA possible port regions */
- for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x20) {
- if (check_region(ioaddr, HP100_REGION_SIZE))
- continue;
- if (hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL) == 0)
- return 0;
- }
- return -ENODEV;
- }
- static int __init hp100_probe1(struct net_device *dev, int ioaddr,
- u_char bus, struct pci_dev *pci_dev)
- {
- int i;
- u_char uc, uc_1;
- u_int eisa_id;
- u_int chip;
- u_int memory_size = 0, virt_memory_size = 0;
- u_short local_mode, lsw;
- short mem_mapped;
- unsigned long mem_ptr_phys;
- void **mem_ptr_virt;
- struct hp100_private *lp;
- struct hp100_eisa_id *eid;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4201, TRACE);
- printk("hp100: %s: probe1n", dev->name);
- #endif
- if (dev == NULL) {
- #ifdef HP100_DEBUG
- printk("hp100_probe1: %s: dev == NULL ?n", dev->name);
- #endif
- return -EIO;
- }
- if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) {
- return -ENODEV;
- } else {
- 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;
- hp100_page(ID_MAC_ADDR);
- for (i = uc = eisa_id = 0; i < 4; i++) {
- eisa_id >>= 8;
- uc_1 = hp100_inb(BOARD_ID + i);
- eisa_id |= uc_1 << 24;
- uc += uc_1;
- }
- uc += hp100_inb(BOARD_ID + 4);
- if (uc != 0xff) { /* bad checksum? */
- printk("hp100_probe: %s: bad EISA ID checksum at base port 0x%xn", dev->name, ioaddr);
- return -ENODEV;
- }
- for (i = 0; i < HP100_EISA_IDS_SIZE; i++)
- if (hp100_eisa_ids[i].id == eisa_id)
- break;
- if (i >= HP100_EISA_IDS_SIZE) {
- for (i = 0; i < HP100_EISA_IDS_SIZE; i++)
- if ((hp100_eisa_ids[i].id & 0xf0ffffff) == (eisa_id & 0xf0ffffff))
- break;
- if (i >= HP100_EISA_IDS_SIZE) {
- printk ("hp100_probe: %s: card at port 0x%x isn't known (id = 0x%x)n", dev->name, ioaddr, eisa_id);
- return -ENODEV;
- }
- }
- eid = &hp100_eisa_ids[i];
- if ((eid->id & 0x0f000000) < (eisa_id & 0x0f000000)) {
- printk("hp100_probe: %s: newer version of card %s at port 0x%x - unsupportedn", dev->name, eid->name, ioaddr);
- return -ENODEV;
- }
- for (i = uc = 0; i < 7; i++)
- uc += hp100_inb(LAN_ADDR + i);
- if (uc != 0xff) {
- printk("hp100_probe: %s: bad lan address checksum (card %s at port 0x%x)n", dev->name, eid->name, ioaddr);
- return -EIO;
- }
- /* 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%xn", 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: %s: IO mapped mode forced.n", dev->name);
- } 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: %s: Shared memory mode requested.n", dev->name);
- } 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: %s: Busmaster mode requested.n", dev->name);
- }
- 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)) {
- printk("hp100: %s: Busmaster mode enabled.n", dev->name);
- hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
- } else {
- #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%xn", 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: %s: Can only use programmed i/o mode.n", dev->name);
- 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 failedn", 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: %s: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.n", dev->name);
- 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: %s: Using (slow) programmed i/o mode.n", dev->name);
- }
- /* Initialise the "private" data structure for this card. */
- if ((dev->priv = kmalloc(sizeof(struct hp100_private), GFP_KERNEL)) == NULL)
- return -ENOMEM;
- lp = (struct hp100_private *) dev->priv;
- memset(lp, 0, sizeof(struct hp100_private));
- spin_lock_init(&lp->lock);
- lp->id = eid;
- 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 */
- /* memory region for programmed i/o */
- request_region(dev->base_addr, HP100_REGION_SIZE, eid->name);
- dev->open = hp100_open;
- dev->stop = hp100_close;
- if (lp->mode == 1) /* busmaster */
- dev->hard_start_xmit = hp100_start_xmit_bm;
- else
- dev->hard_start_xmit = hp100_start_xmit;
- dev->get_stats = hp100_get_stats;
- dev->set_multicast_list = &hp100_set_multicast_list;
- /* 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);
- SET_MODULE_OWNER(dev);
- ether_setup(dev);
- /* 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 */
- /* Get physically continous memory for TX & RX PDLs */
- if ((lp->page_vaddr = kmalloc(MAX_RINGSIZE + 0x0f, GFP_KERNEL)) == NULL)
- return -ENOMEM;
- lp->page_vaddr_algn = ((u_int *) (((u_int) (lp->page_vaddr) + 0x0f) & ~0x0f));
- memset(lp->page_vaddr, 0, MAX_RINGSIZE + 0x0f);
- #ifdef HP100_DEBUG_BM
- printk("hp100: %s: Reserved DMA memory from 0x%x to 0x%xn", 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: %s: %s at 0x%x, IRQ %d, ", dev->name, lp->id->name, 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: %s: Memory area at 0x%lx-0x%lx", dev->name, 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: %s: ", dev->name);
- 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.n");
- break;
- default:
- printk("Warning! Link down.n");
- }
- return 0;
- }
- /* 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4202, TRACE);
- printk("hp100: %s: hwinitn", 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, TRUE);
- 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, TRUE);
- /* 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, FALSE);
- /* ------- initialisation complete ----------- */
- /* Finally try to log in the Hub if there may be a VG connection. */
- if (lp->lan_type != HP100_LAN_10)
- hp100_login_to_vg_hub(dev, FALSE); /* 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 = (struct hp100_private *) dev->priv;
- int i;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4203, TRACE);
- printk("hp100: %s: mmuinitn", 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%xn", 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%xn", dev->name, xmit_stop >> 4);
- printk("hp100: %s: RX_STOP = 0x%xn", 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%xn", dev->name, hp100_inw(TX_MEM_STOP));
- printk("hp100: %s: RX_MEM_STOP: 0x%xn", 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 initalize 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- int ioaddr = dev->base_addr;
- #endif
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4204, TRACE);
- printk("hp100: %s: openn", 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 ? SA_SHIRQ : SA_INTERRUPT,
- lp->id->name, dev)) {
- printk("hp100: %s: unable to get IRQ %dn", dev->name, dev->irq);
- return -EAGAIN;
- }
- dev->trans_start = jiffies;
- 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4205, TRACE);
- printk("hp100: %s: closen", 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, FALSE);
- netif_stop_queue(dev);
- free_irq(dev->irq, dev);
- #ifdef HP100_DEBUG
- printk("hp100: %s: close LSW = 0x%xn", 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 = (struct hp100_private *) dev->priv;
- hp100_ring_t *ringptr;
- u_int *pageptr;
- int i;
- #ifdef HP100_DEBUG_B
- int ioaddr = dev->base_addr;
- #endif
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4206, TRACE);
- printk("hp100: %s: init pdlsn", dev->name);
- #endif
- if (0 == 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) pdlptr) & 0xf))
- printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%x.n",
- dev->name, (unsigned) pdlptr);
- ringptr->pdl = pdlptr + 1;
- ringptr->pdl_paddr = virt_to_bus(pdlptr + 1);
- ringptr->skb = (void *) 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_bus(pdlptr); /* Address Frag 1 */
- *(pdlptr + 3) = 4; /* Length Frag 1 */
- return ((((MAX_RX_FRAG * 2 + 2) + 3) / 4) * 4);
- }
- static int hp100_init_txpdl(struct net_device *dev,
- register hp100_ring_t * ringptr,
- register u32 * pdlptr)
- {
- if (0 != (((unsigned) pdlptr) & 0xf))
- printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%x.n", dev->name, (unsigned) pdlptr);
- ringptr->pdl = pdlptr; /* +1; */
- ringptr->pdl_paddr = virt_to_bus(pdlptr); /* +1 */
- ringptr->skb = (void *) NULL;
- return ((((MAX_TX_FRAG * 2 + 2) + 3) / 4) * 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 pdln", 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 = dev_alloc_skb(((MAX_ETHER_SIZE + 2 + 3) / 4) * 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->dev = dev;
- ringptr->skb->data = (u_char *) 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%xn",
- dev->name, (u_int) ringptr->pdl,
- ((MAX_ETHER_SIZE + 2 + 3) / 4) * 4,
- (unsigned int) ringptr->skb->data);
- #endif
- ringptr->pdl[0] = 0x00020000; /* Write PDH */
- ringptr->pdl[3] = ((u_int) virt_to_bus(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%.8xn", 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 = (struct hp100_private *) dev->priv;
- hp100_ring_t *ringptr;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4208, TRACE);
- printk("hp100: %s: rxfilln", 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%xn",
- 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 = (struct hp100_private *) dev->priv;
- unsigned long time;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4209, TRACE);
- printk("hp100: %s: bm shutdownn", 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, TRUE);
- }
- hp100_page(PERFORMANCE);
- /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */
- /* Busmaster mode should be shut down now. */
- }
- /*
- * transmit functions
- */
- /* tx function for busmaster mode */
- static int 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 = (struct hp100_private *) dev->priv;
- hp100_ring_t *ringptr;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4210, TRACE);
- printk("hp100: %s: start_xmit_bmn", dev->name);
- #endif
- if (skb == NULL) {
- return 0;
- }
- if (skb->len <= 0)
- return 0;
- /* 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 (jiffies - dev->trans_start < HZ)
- return -EAGAIN;
- 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 wiren", dev->name);
- hp100_start_interface(dev); /* 10Mb/s RX pkts maybe handled */
- return -EIO;
- }
- if (lp->lan_type == HP100_LAN_100)
- lp->hub_status = hp100_login_to_vg_hub(dev, FALSE); /* relogin */
- hp100_start_interface(dev);
- }
- 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 retryn", dev->name);
- hp100_stop_interface(dev);
- lp->hub_status = hp100_login_to_vg_hub(dev, FALSE);
- 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 detectedn", 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 detectedn", 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, FALSE);
- hp100_start_interface(dev);
- } else {
- printk("hp100: %s: interface resetn", dev->name);
- hp100_stop_interface(dev);
- if (lp->lan_type == HP100_LAN_100)
- lp->hub_status = hp100_login_to_vg_hub(dev, FALSE);
- hp100_start_interface(dev);
- }
- }
- dev->trans_start = jiffies;
- return -EAGAIN;
- }
- /*
- * 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 */
- ringptr->pdl[1] = (u32) virt_to_bus(skb->data); /* 1st Frag: Adr. of data */
- 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 */
- }
- /* Hand this PDL to the card. */
- hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */
- lp->txrcommit++;
- spin_unlock_irqrestore(&lp->lock, flags);
- /* Update statistics */
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
- return 0;
- }
- /* 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 commited 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 = (struct hp100_private *) dev->priv;
- int ioaddr = dev->base_addr;
- int donecount;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4211, TRACE);
- printk("hp100: %s: clean txringn", 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 commited 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%xn",
- dev->name, (u_int) lp->txrhead->skb->data,
- lp->txrcommit, hp100_inb(TX_PDL), donecount);
- #endif
- dev_kfree_skb_any(lp->txrhead->skb);
- lp->txrhead->skb = (void *) NULL;
- lp->txrhead = lp->txrhead->next;
- lp->txrcommit--;
- }
- }
- /* tx function for slave modes */
- static int 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4212, TRACE);
- printk("hp100: %s: start_xmitn", dev->name);
- #endif
- if (skb == NULL) {
- return 0;
- }
- if (skb->len <= 0)
- return 0;
- 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 wiren", 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, FALSE); /* relogin */
- hp100_start_interface(dev);
- }
- /* 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%xn", dev->name, i);
- #endif
- /* not waited long enough since last failed tx try? */
- if (jiffies - dev->trans_start < HZ) {
- #ifdef HP100_DEBUG
- printk("hp100: %s: trans_start timing problemn",
- dev->name);
- #endif
- return -EAGAIN;
- }
- 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 retryn", dev->name);
- hp100_stop_interface(dev);
- lp->hub_status = hp100_login_to_vg_hub(dev, FALSE);
- 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 detectedn", 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 detectedn", 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, FALSE);
- hp100_start_interface(dev);
- } else {
- printk("hp100: %s: interface resetn", dev->name);
- hp100_stop_interface(dev);
- if (lp->lan_type == HP100_LAN_100)
- lp->hub_status = hp100_login_to_vg_hub(dev, FALSE);
- hp100_start_interface(dev);
- mdelay(1);
- }
- }
- dev->trans_start = jiffies;
- return -EAGAIN;
- }
- for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) {
- #ifdef HP100_DEBUG_TX
- printk("hp100: %s: start_xmit: busyn", 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=%dn",
- 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 */
- if (lp->mem_ptr_virt) { /* high pci memory was remapped */
- /* 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 {
- /* Note: The J2585B needs alignment to 32bits here! */
- isa_memcpy_toio(lp->mem_ptr_phys, skb->data, (skb->len + 3) & ~3);
- if (!ok_flag)
- isa_memset_io(lp->mem_ptr_phys, 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 */
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
- hp100_ints_on();
- spin_unlock_irqrestore(&lp->lock, flags);
- dev_kfree_skb_any(skb);
- #ifdef HP100_DEBUG_TX
- printk("hp100: %s: start_xmit: endn", dev->name);
- #endif
- return 0;
- }
- /*
- * 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 transfering
- * 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 = (struct hp100_private *) dev->priv;
- u_int header;
- struct sk_buff *skb;
- #ifdef DEBUG_B
- hp100_outw(0x4213, TRACE);
- printk("hp100: %s: rxn", 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 = %dn", 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 = %dn", 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 */
- if (lp->mem_ptr_virt) /* if memory was remapped */
- header = readl(lp->mem_ptr_virt);
- else
- header = isa_readl(lp->mem_ptr_phys);
- } 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%xn",
- 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 = dev_alloc_skb(pkt_len);
- if (skb == NULL) { /* Not enough memory->drop packet */
- #ifdef HP100_DEBUG
- printk("hp100: %s: rx: couldn't allocate a sk_buff of size %dn",
- dev->name, pkt_len);
- #endif
- lp->stats.rx_dropped++;
- } else { /* skb successfully allocated */
- u_char *ptr;
- skb->dev = dev;
- /* ptr to start of the sk_buff data area */
- ptr = (u_char *) skb_put(skb, pkt_len);
- /* Now transfer the data from the card into that area */
- if (lp->mode == 2) {
- if (lp->mem_ptr_virt)
- memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len);
- /* Note alignment to 32bit transfers */
- else
- isa_memcpy_fromio(ptr, lp->mem_ptr_phys, 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 %02xn",
- 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->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->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):
- lp->stats.multicast++;
- break;
- }
- } /* end of while(there are packets) loop */
- #ifdef HP100_DEBUG_RX
- printk("hp100_rx: %s: endn", 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 = (struct hp100_private *) dev->priv;
- hp100_ring_t *ptr;
- u_int header;
- int pkt_len;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4214, TRACE);
- printk("hp100: %s: rx_bmn", 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 commited? RX_PKT_CNT=0x%x, commit=0x%xn",
- 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);
- #ifdef HP100_DEBUG_BM
- printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%xn",
- 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%xn",
- 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 nulln", dev->name);
- /* can happen if we only allocated room for the pdh due to memory shortage. */
- lp->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->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += pkt_len;
- }
- switch (header & 0x00070000) {
- case (HP100_MULTI_ADDR_HASH << 16):
- case (HP100_MULTI_ADDR_NO_HASH << 16):
- lp->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);
- lp->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 hp100_stats_t *hp100_get_stats(struct net_device *dev)
- {
- unsigned long flags;
- int ioaddr = dev->base_addr;
- struct hp100_private *lp = (struct hp100_private *) dev->priv;
- #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 &(lp->stats);
- }
- static void hp100_update_stats(struct net_device *dev)
- {
- int ioaddr = dev->base_addr;
- u_short val;
- struct hp100_private *lp = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4216, TRACE);
- printk("hp100: %s: update-statsn", dev->name);
- #endif
- /* Note: Statistics counters clear when read. */
- hp100_page(MAC_CTRL);
- val = hp100_inw(DROPPED) & 0x0fff;
- lp->stats.rx_errors += val;
- lp->stats.rx_over_errors += val;
- val = hp100_inb(CRC);
- lp->stats.rx_errors += val;
- lp->stats.rx_crc_errors += val;
- val = hp100_inb(ABORT);
- lp->stats.tx_errors += val;
- lp->stats.tx_aborted_errors += val;
- hp100_page(PERFORMANCE);
- }
- static void hp100_misc_interrupt(struct net_device *dev)
- {
- struct hp100_private *lp = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4216, TRACE);
- printk("hp100: %s: misc_interruptn", dev->name);
- #endif
- /* Note: Statistics counters clear when read. */
- lp->stats.rx_errors++;
- lp->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_statsn", 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4218, TRACE);
- printk("hp100: %s: set_mc_listn", 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 (dev->mc_count || (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, j, idx;
- u_char *addrs;
- struct dev_mc_list *dmi;
- memset(&lp->hash_bytes, 0x00, 8);
- #ifdef HP100_DEBUG
- printk("hp100: %s: computing hash filter - mc_count = %in", dev->name, dev->mc_count);
- #endif
- for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) {
- addrs = dmi->dmi_addr;
- if ((*addrs & 0x01) == 0x01) { /* multicast address? */
- #ifdef HP100_DEBUG
- printk("hp100: %s: multicast = %02x:%02x:%02x:%02x:%02x:%02x, ",
- dev->name, addrs[0], addrs[1], addrs[2],
- addrs[3], addrs[4], addrs[5]);
- #endif
- for (j = idx = 0; j < 6; j++) {
- idx ^= *addrs++ & 0x3f;
- printk(":%02x:", idx);
- }
- #ifdef HP100_DEBUG
- printk("idx = %in", 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:%02xn",
- 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, TRUE); /* 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:%02xn",
- 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, TRUE); /* 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 void hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct net_device *dev = (struct net_device *) dev_id;
- struct hp100_private *lp = (struct hp100_private *) dev->priv;
- int ioaddr;
- u_int val;
- if (dev == NULL)
- return;
- 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%.2xn",
- 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;
- }
- /* 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)) {
- /* Shouldnt 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 IRQn", 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();
- }
- /*
- * some misc functions
- */
- static void hp100_start_interface(struct net_device *dev)
- {
- unsigned long flags;
- int ioaddr = dev->base_addr;
- struct hp100_private *lp = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4220, TRACE);
- printk("hp100: %s: hp100_start_interfacen", 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 = (struct hp100_private *) dev->priv;
- int ioaddr = dev->base_addr;
- u_int val;
- #ifdef HP100_DEBUG_B
- printk("hp100: %s: hp100_stop_interfacen", 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 - timeoutn", 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 - timeoutn", 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 = (struct hp100_private *) dev->priv;
- #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%04xn",
- 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? */
- 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_10;
- }
- if ((lp->id->id == 0x02019F022) ||
- (lp->id->id == 0x01042103c) || (lp->id->id == 0x01040103c))
- return HP100_LAN_ERR; /* Those cards don't have a 100 Mbit connector */
- 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 = (struct hp100_private *) dev->priv;
- int ioaddr = dev->base_addr;
- unsigned long time;
- long savelan, newlan;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4224, TRACE);
- printk("hp100: %s: down_vg_linkn", 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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(1);
- }
- } while (time_after(time, jiffies));
- if (time_before_eq(time, jiffies)) {
- #ifdef HP100_DEBUG
- printk("hp100: %s: down_vg_link: timeoutn", dev->name);
- #endif
- return -EIO;
- }
- time = jiffies + (2 * HZ); /* This seems to take a while.... */
- do {
- if (!in_interrupt()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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 = (struct hp100_private *) dev->priv;
- u_short val = 0;
- unsigned long time;
- int startst;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4225, TRACE);
- printk("hp100: %s: login_to_vg_hubn", 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 == TRUE) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) {
- #ifdef HP100_DEBUG_TRAINING
- printk("hp100: %s: Start trainingn", 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 linkn", 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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(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); /* wont work on non-ETR card */
- #ifdef HP100_DEBUG_TRAINING
- printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04xn", 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 = (struct hp100_private *) dev->priv;
- #ifdef HP100_DEBUG_B
- hp100_outw(0x4226, TRACE);
- printk("hp100: %s: cascade_resetn", dev->name);
- #endif
- if (enable == TRUE) {
- 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 cant 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 Dumpn", dev->name);
- printk("hardware id #1: 0x%.2xn", hp100_inb(HW_ID));
- printk("hardware id #2/paging: 0x%.2xn", hp100_inb(PAGING));
- printk("option #1: 0x%.4xn", hp100_inw(OPTION_LSW));
- printk("option #2: 0x%.4xn", hp100_inw(OPTION_MSW));
- /* Dump paged registers */
- for (Page = 0; Page < 8; Page++) {
- /* Dump registers */
- printk("page: 0x%.2xn", 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%.4xn", Register, inw(ioaddr + Register));
- }
- }
- }
- hp100_page(PERFORMANCE);
- }
- #endif
- /*
- * module section
- */
- #ifdef MODULE
- MODULE_LICENSE("GPL");
- MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, "
- "Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>");
- MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters");
- /*
- * Note: if you have more than five 100vg cards in your pc, feel free to
- * increase this value
- */
- #define HP100_DEVICES 5
- /*
- * Note: to register three eisa or pci devices, use:
- * option hp100 hp100_port=0,0,0
- * to register one card at io 0x280 as eth239, use:
- * option hp100 hp100_port=0x280 hp100_name=eth239
- */
- /* Parameters set by insmod */
- static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 };
- MODULE_PARM(hp100_port, "1-" __MODULE_STRING(HP100_DEVICES) "i");
- /* Allocate HP100_DEVICES strings of length IFNAMSIZ, one string for each device */
- static char hp100_name[HP100_DEVICES][IFNAMSIZ] = { "", "", "", "", "" };
- /* Allow insmod to write those HP100_DEVICES strings individually */
- MODULE_PARM(hp100_name, "1-" __MODULE_STRING(HP100_DEVICES) "c" __MODULE_STRING(IFNAMSIZ));
- /* List of devices */
- static struct net_device *hp100_devlist[HP100_DEVICES];
- static void release_dev(int i)
- {
- struct net_device *d = hp100_devlist[i];
- struct hp100_private *p = (struct hp100_private *) d->priv;
- unregister_netdev(d);
- release_region(d->base_addr, HP100_REGION_SIZE);
- if (p->mode == 1) /* busmaster */
- kfree(p->page_vaddr);
- if (p->mem_ptr_virt)
- iounmap(p->mem_ptr_virt);
- kfree(d->priv);
- d->priv = NULL;
- kfree(d);
- hp100_devlist[i] = NULL;
- }
- static int __init hp100_module_init(void)
- {
- int i, cards;
- if (hp100_port == 0 && !EISA_bus && !pcibios_present())
- printk("hp100: You should not use auto-probing with insmod!n");
- /* Loop on all possible base addresses */
- i = -1;
- cards = 0;
- while ((hp100_port[++i] != -1) && (i < HP100_DEVICES)) {
- /* Create device and set basics args */
- hp100_devlist[i] = kmalloc(sizeof(struct net_device), GFP_KERNEL);
- if (!hp100_devlist[i])
- goto fail;
- memset(hp100_devlist[i], 0x00, sizeof(struct net_device));
- #if LINUX_VERSION_CODE >= 0x020362 /* 2.3.99-pre7 */
- memcpy(hp100_devlist[i]->name, hp100_name[i], IFNAMSIZ); /* Copy name */
- #else
- hp100_devlist[i]->name = hp100_name[i];
- #endif /* LINUX_VERSION_CODE >= 0x020362 */
- hp100_devlist[i]->base_addr = hp100_port[i];
- hp100_devlist[i]->init = &hp100_probe;
- /* Try to create the device */
- if (register_netdev(hp100_devlist[i]) != 0) {
- /* DeAllocate everything */
- /* Note: if dev->priv is mallocated, there is no way to fail */
- kfree(hp100_devlist[i]);
- hp100_devlist[i] = (struct net_device *) NULL;
- } else
- cards++;
- } /* Loop over all devices */
- return cards > 0 ? 0 : -ENODEV;
- fail:
- while (cards && --i)
- if (hp100_devlist[i]) {
- release_dev(i);
- --cards;
- }
- return -ENOMEM;
- }
- static void __exit hp100_module_exit(void)
- {
- int i;
- /* TODO: Check if all skb's are released/freed. */
- for (i = 0; i < HP100_DEVICES; i++)
- if (hp100_devlist[i] != (struct net_device *) NULL)
- release_dev(i);
- }
- module_init(hp100_module_init)
- module_exit(hp100_module_exit)
- #endif /* MODULE */
- /*
- * Local variables:
- * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c hp100.c"
- * c-indent-level: 2
- * tab-width: 8
- * End:
- */