c056b734e5
Replaced deprecating dev_alloc_skb with netdev_alloc_skb in drivers/net/ethernet - Removed extra skb->dev = dev after netdev_alloc_skb Signed-off-by: Pradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
3066 lines
88 KiB
C
3066 lines
88 KiB
C
/*
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** hp100.c
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** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters
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**
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** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $
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**
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** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz>
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** Extended for new busmaster capable chipsets by
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** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>
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**
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** Maintained by: Jaroslav Kysela <perex@perex.cz>
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**
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** This driver has only been tested with
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** -- HP J2585B 10/100 Mbit/s PCI Busmaster
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** -- HP J2585A 10/100 Mbit/s PCI
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** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC
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** -- HP J2973A 10 Mbit/s PCI 10base-T
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** -- HP J2573 10/100 ISA
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** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA
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** -- Compex FreedomLine 100/VG 10/100 Mbit/s ISA / EISA / PCI
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**
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** but it should also work with the other CASCADE based adapters.
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**
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** TODO:
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** - J2573 seems to hang sometimes when in shared memory mode.
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** - Mode for Priority TX
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** - Check PCI registers, performance might be improved?
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** - To reduce interrupt load in busmaster, one could switch off
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** the interrupts that are used to refill the queues whenever the
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** queues are filled up to more than a certain threshold.
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** - some updates for EISA version of card
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**
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**
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** This code is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This code is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** 1.57c -> 1.58
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** - used indent to change coding-style
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** - added KTI DP-200 EISA ID
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** - ioremap is also used for low (<1MB) memory (multi-architecture support)
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**
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** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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** - release resources on failure in init_module
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**
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** 1.57 -> 1.57b - Jean II
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** - fix spinlocks, SMP is now working !
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**
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** 1.56 -> 1.57
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** - updates for new PCI interface for 2.1 kernels
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**
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** 1.55 -> 1.56
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** - removed printk in misc. interrupt and update statistics to allow
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** monitoring of card status
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** - timing changes in xmit routines, relogin to 100VG hub added when
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** driver does reset
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** - included fix for Compex FreedomLine PCI adapter
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**
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** 1.54 -> 1.55
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** - fixed bad initialization in init_module
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** - added Compex FreedomLine adapter
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** - some fixes in card initialization
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**
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** 1.53 -> 1.54
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** - added hardware multicast filter support (doesn't work)
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** - little changes in hp100_sense_lan routine
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** - added support for Coax and AUI (J2970)
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** - fix for multiple cards and hp100_mode parameter (insmod)
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** - fix for shared IRQ
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**
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** 1.52 -> 1.53
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** - fixed bug in multicast support
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**
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*/
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#define HP100_DEFAULT_PRIORITY_TX 0
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#undef HP100_DEBUG
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#undef HP100_DEBUG_B /* Trace */
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#undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */
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#undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */
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#undef HP100_DEBUG_TX
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#undef HP100_DEBUG_IRQ
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#undef HP100_DEBUG_RX
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#undef HP100_MULTICAST_FILTER /* Need to be debugged... */
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/interrupt.h>
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#include <linux/eisa.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/spinlock.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <linux/jiffies.h>
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#include <asm/io.h>
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#include "hp100.h"
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/*
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* defines
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*/
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#define HP100_BUS_ISA 0
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#define HP100_BUS_EISA 1
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#define HP100_BUS_PCI 2
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#define HP100_REGION_SIZE 0x20 /* for ioports */
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#define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */
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#define HP100_MAX_PACKET_SIZE (1536+4)
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#define HP100_MIN_PACKET_SIZE 60
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#ifndef HP100_DEFAULT_RX_RATIO
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/* default - 75% onboard memory on the card are used for RX packets */
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#define HP100_DEFAULT_RX_RATIO 75
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#endif
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#ifndef HP100_DEFAULT_PRIORITY_TX
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/* default - don't enable transmit outgoing packets as priority */
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#define HP100_DEFAULT_PRIORITY_TX 0
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#endif
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/*
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* structures
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*/
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struct hp100_private {
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spinlock_t lock;
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char id[HP100_SIG_LEN];
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u_short chip;
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u_short soft_model;
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u_int memory_size;
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u_int virt_memory_size;
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u_short rx_ratio; /* 1 - 99 */
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u_short priority_tx; /* != 0 - priority tx */
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u_short mode; /* PIO, Shared Mem or Busmaster */
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u_char bus;
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struct pci_dev *pci_dev;
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short mem_mapped; /* memory mapped access */
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void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */
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unsigned long mem_ptr_phys; /* physical memory mapped area */
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short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */
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int hub_status; /* was login to hub successful? */
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u_char mac1_mode;
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u_char mac2_mode;
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u_char hash_bytes[8];
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/* Rings for busmaster mode: */
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hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */
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hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */
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hp100_ring_t *txrhead; /* Head (oldest) index into txring */
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hp100_ring_t *txrtail; /* Tail (newest) index into txring */
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hp100_ring_t rxring[MAX_RX_PDL];
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hp100_ring_t txring[MAX_TX_PDL];
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u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */
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u_long whatever_offset; /* Offset to bus/phys/dma address */
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int rxrcommit; /* # Rx PDLs committed to adapter */
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int txrcommit; /* # Tx PDLs committed to adapter */
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};
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/*
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* variables
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*/
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#ifdef CONFIG_ISA
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static const char *hp100_isa_tbl[] = {
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"HWPF150", /* HP J2573 rev A */
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"HWP1950", /* HP J2573 */
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};
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#endif
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#ifdef CONFIG_EISA
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static struct eisa_device_id hp100_eisa_tbl[] = {
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{ "HWPF180" }, /* HP J2577 rev A */
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{ "HWP1920" }, /* HP 27248B */
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{ "HWP1940" }, /* HP J2577 */
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{ "HWP1990" }, /* HP J2577 */
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{ "CPX0301" }, /* ReadyLink ENET100-VG4 */
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{ "CPX0401" }, /* FreedomLine 100/VG */
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{ "" } /* Mandatory final entry ! */
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};
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MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl);
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#endif
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#ifdef CONFIG_PCI
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static DEFINE_PCI_DEVICE_TABLE(hp100_pci_tbl) = {
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,},
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{PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,},
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{PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,},
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/* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(pci, hp100_pci_tbl);
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#endif
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static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
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static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
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static int hp100_mode = 1;
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module_param(hp100_rx_ratio, int, 0);
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module_param(hp100_priority_tx, int, 0);
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module_param(hp100_mode, int, 0);
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/*
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* prototypes
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*/
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static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus,
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struct pci_dev *pci_dev);
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static int hp100_open(struct net_device *dev);
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static int hp100_close(struct net_device *dev);
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static netdev_tx_t hp100_start_xmit(struct sk_buff *skb,
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struct net_device *dev);
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static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb,
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struct net_device *dev);
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static void hp100_rx(struct net_device *dev);
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static struct net_device_stats *hp100_get_stats(struct net_device *dev);
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static void hp100_misc_interrupt(struct net_device *dev);
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static void hp100_update_stats(struct net_device *dev);
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static void hp100_clear_stats(struct hp100_private *lp, int ioaddr);
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static void hp100_set_multicast_list(struct net_device *dev);
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static irqreturn_t hp100_interrupt(int irq, void *dev_id);
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static void hp100_start_interface(struct net_device *dev);
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static void hp100_stop_interface(struct net_device *dev);
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static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr);
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static int hp100_sense_lan(struct net_device *dev);
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static int hp100_login_to_vg_hub(struct net_device *dev,
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u_short force_relogin);
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static int hp100_down_vg_link(struct net_device *dev);
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static void hp100_cascade_reset(struct net_device *dev, u_short enable);
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static void hp100_BM_shutdown(struct net_device *dev);
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static void hp100_mmuinit(struct net_device *dev);
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static void hp100_init_pdls(struct net_device *dev);
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static int hp100_init_rxpdl(struct net_device *dev,
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register hp100_ring_t * ringptr,
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register u_int * pdlptr);
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static int hp100_init_txpdl(struct net_device *dev,
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register hp100_ring_t * ringptr,
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register u_int * pdlptr);
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static void hp100_rxfill(struct net_device *dev);
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static void hp100_hwinit(struct net_device *dev);
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static void hp100_clean_txring(struct net_device *dev);
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#ifdef HP100_DEBUG
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static void hp100_RegisterDump(struct net_device *dev);
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#endif
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|
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/* Conversion to new PCI API :
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* Convert an address in a kernel buffer to a bus/phys/dma address.
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* This work *only* for memory fragments part of lp->page_vaddr,
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* because it was properly DMA allocated via pci_alloc_consistent(),
|
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* so we just need to "retrieve" the original mapping to bus/phys/dma
|
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* address - Jean II */
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static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr)
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{
|
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struct hp100_private *lp = netdev_priv(dev);
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return ((u_long) ptr) + lp->whatever_offset;
|
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}
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|
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static inline u_int pdl_map_data(struct hp100_private *lp, void *data)
|
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{
|
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return pci_map_single(lp->pci_dev, data,
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MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
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}
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|
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/* TODO: This function should not really be needed in a good design... */
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static void wait(void)
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{
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mdelay(1);
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}
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|
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/*
|
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* probe functions
|
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* These functions should - if possible - avoid doing write operations
|
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* since this could cause problems when the card is not installed.
|
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*/
|
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|
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/*
|
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* Read board id and convert to string.
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* Effectively same code as decode_eisa_sig
|
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*/
|
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static __devinit const char *hp100_read_id(int ioaddr)
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{
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int i;
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static char str[HP100_SIG_LEN];
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unsigned char sig[4], sum;
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unsigned short rev;
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hp100_page(ID_MAC_ADDR);
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sum = 0;
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for (i = 0; i < 4; i++) {
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sig[i] = hp100_inb(BOARD_ID + i);
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sum += sig[i];
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}
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|
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sum += hp100_inb(BOARD_ID + i);
|
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if (sum != 0xff)
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return NULL; /* bad checksum */
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|
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str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1);
|
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str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1);
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str[2] = (sig[1] & 0x1f) + ('A' - 1);
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rev = (sig[2] << 8) | sig[3];
|
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sprintf(str + 3, "%04X", rev);
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|
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return str;
|
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}
|
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|
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#ifdef CONFIG_ISA
|
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static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr)
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{
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const char *sig;
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int i;
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|
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if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100"))
|
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goto err;
|
|
|
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if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) {
|
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release_region(ioaddr, HP100_REGION_SIZE);
|
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goto err;
|
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}
|
|
|
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sig = hp100_read_id(ioaddr);
|
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release_region(ioaddr, HP100_REGION_SIZE);
|
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|
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if (sig == NULL)
|
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goto err;
|
|
|
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for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) {
|
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if (!strcmp(hp100_isa_tbl[i], sig))
|
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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.
|
|
*/
|
|
|
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static int __init hp100_isa_probe(struct net_device *dev, int addr)
|
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{
|
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int err = -ENODEV;
|
|
|
|
/* Probe for a specific ISA address */
|
|
if (addr > 0xff && addr < 0x400)
|
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err = hp100_isa_probe1(dev, addr);
|
|
|
|
else if (addr != 0)
|
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err = -ENXIO;
|
|
|
|
else {
|
|
/* Probe all ISA possible port regions */
|
|
for (addr = 0x100; addr < 0x400; addr += 0x20) {
|
|
err = hp100_isa_probe1(dev, addr);
|
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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_change_mtu = eth_change_mtu,
|
|
.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_change_mtu = eth_change_mtu,
|
|
.ndo_set_mac_address = eth_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static int __devinit 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 "hp100_probe: bad ID checksum at base port 0x%x\n", 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 "hp100_probe: bad lan address checksum at port 0x%x)\n", 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 : IRQF_DISABLED,
|
|
"hp100", dev)) {
|
|
printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
dev->trans_start = jiffies; /* 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 = (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_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 = (void *) 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 = (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%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_kfree_skb_any(lp->txrhead->skb);
|
|
lp->txrhead->skb = (void *) 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_kfree_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);
|
|
}
|
|
|
|
#ifdef CONFIG_EISA
|
|
static int __init 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 __devexit 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 = __devexit_p (hp100_eisa_remove),
|
|
}
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCI
|
|
static int __devinit 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 __devexit 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 = __devexit_p(hp100_pci_remove),
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* 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_array(hp100_port, int, 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;
|
|
#ifdef CONFIG_EISA
|
|
err = eisa_driver_register(&hp100_eisa_driver);
|
|
if (err && err != -ENODEV)
|
|
goto out2;
|
|
#endif
|
|
#ifdef CONFIG_PCI
|
|
err = pci_register_driver(&hp100_pci_driver);
|
|
if (err && err != -ENODEV)
|
|
goto out3;
|
|
#endif
|
|
out:
|
|
return err;
|
|
out3:
|
|
#ifdef CONFIG_EISA
|
|
eisa_driver_unregister (&hp100_eisa_driver);
|
|
out2:
|
|
#endif
|
|
hp100_isa_cleanup();
|
|
goto out;
|
|
}
|
|
|
|
|
|
static void __exit hp100_module_exit(void)
|
|
{
|
|
hp100_isa_cleanup();
|
|
#ifdef CONFIG_EISA
|
|
eisa_driver_unregister (&hp100_eisa_driver);
|
|
#endif
|
|
#ifdef CONFIG_PCI
|
|
pci_unregister_driver (&hp100_pci_driver);
|
|
#endif
|
|
}
|
|
|
|
module_init(hp100_module_init)
|
|
module_exit(hp100_module_exit)
|