patch-2.1.40 linux/drivers/net/hp100.c
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- Lines: 3418
- Date:
Mon May 19 12:49:29 1997
- Orig file:
v2.1.39/linux/drivers/net/hp100.c
- Orig date:
Wed Apr 23 19:01:19 1997
diff -u --recursive --new-file v2.1.39/linux/drivers/net/hp100.c linux/drivers/net/hp100.c
@@ -1,89 +1,54 @@
/*
- * hp100.c: Hewlett Packard HP10/100VG ANY LAN ethernet driver for Linux.
- *
- * Author: Jaroslav Kysela, <perex@pf.jcu.cz>
- *
- * Supports only the following Hewlett Packard cards:
- *
- * HP J2577 10/100 EISA card with REVA Cascade chip
- * HP J2573 10/100 ISA card with REVA Cascade chip
- * HP 27248B 10 only EISA card with Cascade chip
- * HP J2577 10/100 EISA card with Cascade chip
- * HP J2573 10/100 ISA card with Cascade chip
- * HP J2585 10/100 PCI card
- *
- * Other ATT2MD01 Chip based boards might be supported in the future
- * (there are some minor changes needed).
- *
- * This driver is based on the 'hpfepkt' crynwr packet driver.
- *
- * This source/code is public free; you can distribute it and/or modify
- * it under terms of the GNU General Public License (published by the
- * Free Software Foundation) either version two of this License, or any
- * later version.
- * ----------------------------------------------------------------------------
- *
- * Note: Some routines (interrupt handling, transmit) assumes that
- * there is the PERFORMANCE page selected...
- *
- * ----------------------------------------------------------------------------
- *
- * If you are going to use the module version of this driver, you may
- * change this values at the "insert time" :
- *
- * Variable Description
- *
- * hp100_rx_ratio Range 1-99 - onboard memory used for RX
- * packets in %.
- * hp100_priority_tx If this variable is nonzero - all outgoing
- * packets will be transmitted as priority.
- * hp100_port Adapter port (for example 0x380).
- *
- * ----------------------------------------------------------------------------
- * MY BEST REGARDS GOING TO:
- *
- * IPEX s.r.o which lend me two HP J2573 cards and
- * the HP AdvanceStack 100VG Hub-15 for debugging.
- *
- * Russel Nellson <nelson@crynwr.com> for help with obtaining sources
- * of the 'hpfepkt' packet driver.
- *
- * Also thanks to Abacus Electric s.r.o which let me to use their
- * motherboard for my second computer.
- *
- * ----------------------------------------------------------------------------
- *
- * TO DO:
- * ======
- * - ioctl handling - some runtime setup things
- * - 100Mb/s Voice Grade AnyLAN network adapter/hub services support
- * - 802.5 frames
- * - promiscuous mode
- * - bridge mode
- * - cascaded repeater mode
- * - 100Mbit MAC
- *
- * Revision history:
- * =================
- *
- * Version Date Description
- *
- * 0.1 14-May-95 Initial writing. ALPHA code was released.
- * Only HP J2573 on 10Mb/s (two machines) tested.
- * 0.11 14-Jun-95 Reset interface bug fixed?
- * Little bug in hp100_close function fixed.
- * 100Mb/s connection debugged.
- * 0.12 14-Jul-95 Link down is now handled better.
- * 0.20 01-Aug-95 Added PCI support for HP J2585A card.
- * Statistics bug fixed.
- * 0.21 04-Aug-95 Memory mapped access support for PCI card.
- * Added priority transmit support for 100Mb/s
- * Voice Grade AnyLAN network.
- *
- */
+** hp100.c
+** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters
+**
+** $Id: hp100.c,v 1.52 1997/04/21 14:20:20 perex Exp perex $
+**
+** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz>
+** Extended for new busmaster capable chipsets by
+** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>
+**
+** Maintained by: Jaroslav Kysela <perex@jcu.cz>
+**
+** This driver has only been tested with
+** -- HP J2585B 10/100 Mbit/s PCI Busmaster
+** -- HP J2585A 10/100 Mbit/s PCI
+** -- HP J2970 10 Mbit/s PCI Combo 10base-T/BNC
+** -- HP J2973 10 Mbit/s PCI 10base-T
+** -- HP J2573 10/100 ISA
+** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA
+**
+** but it should also work with the other CASCADE based adapters.
+**
+** TODO:
+** - J2573 seems to hang sometimes when in shared memory mode.
+** - Mode for Priority TX
+** - Check PCI registers, performance might be improved?
+** - To reduce interrupt load in busmaster, one could switch off
+** the interrupts that are used to refill the queues whenever the
+** queues are filled up to more than a certain threshold.
+**
+**
+** This source/code is public free; you can distribute it and/or modify
+** it under terms of the GNU General Public License (published by the
+** Free Software Foundation) either version two of this License, or any
+** later version.
+**
+*/
+
+#define HP100_DEFAULT_PRIORITY_TX 0
+
+#undef HP100_DEBUG
+#undef HP100_DEBUG_B /* Trace */
+#undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */
+
+#undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */
+#undef HP100_DEBUG_TX
+#undef HP100_DEBUG_IRQ
+#undef HP100_DEBUG_RX
+#include <linux/version.h>
#include <linux/module.h>
-
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
@@ -102,7 +67,17 @@
#include <linux/skbuff.h>
#include <linux/types.h>
-#include <linux/config.h> /* for CONFIG_PCI */
+#include <linux/config.h> /* for CONFIG_PCI */
+#include <linux/delay.h>
+
+#if LINUX_VERSION_CODE < 0x020100
+#define ioremap vremap
+#define iounmap vfree
+typedef struct enet_statistics hp100_stats_t;
+#else
+#define LINUX_2_1
+typedef struct net_device_stats hp100_stats_t;
+#endif
#include "hp100.h"
@@ -110,18 +85,28 @@
* defines
*/
-#define HP100_BUS_ISA 0
-#define HP100_BUS_EISA 1
-#define HP100_BUS_PCI 2
+#define HP100_BUS_ISA 0
+#define HP100_BUS_EISA 1
+#define HP100_BUS_PCI 2
-#define HP100_REGION_SIZE 0x20
+#ifndef PCI_DEVICE_ID_HP_J2585B
+#define PCI_DEVICE_ID_HP_J2585B 0x1031
+#endif
+#ifndef PCI_VENDOR_ID_COMPEX
+#define PCI_VENDOR_ID_COMPEX 0x11f6
+#endif
+#ifndef PCI_DEVICE_ID_COMPEX_ENET100VG4
+#define PCI_DEVICE_ID_COMPEX_ENET100VG4 0x0112
+#endif
+
+#define HP100_REGION_SIZE 0x20 /* for ioports */
-#define HP100_MAX_PACKET_SIZE (1536+4)
-#define HP100_MIN_PACKET_SIZE 60
+#define HP100_MAX_PACKET_SIZE (1536+4)
+#define HP100_MIN_PACKET_SIZE 60
#ifndef HP100_DEFAULT_RX_RATIO
-/* default - 65% onboard memory on the card are used for RX packets */
-#define HP100_DEFAULT_RX_RATIO 65
+/* default - 75% onboard memory on the card are used for RX packets */
+#define HP100_DEFAULT_RX_RATIO 75
#endif
#ifndef HP100_DEFAULT_PRIORITY_TX
@@ -141,18 +126,37 @@
struct hp100_private {
struct hp100_eisa_id *id;
+ u_short chip;
u_short soft_model;
- u_int memory_size;
- u_short rx_ratio; /* 1 - 99 */
- u_short priority_tx; /* != 0 - priority tx */
- short mem_mapped; /* memory mapped access */
- u_char *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */
- u_char *mem_ptr_phys; /* physical memory mapped area */
- short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */
- int hub_status; /* login to hub was successful? */
+ u_int memory_size;
+ u_short rx_ratio; /* 1 - 99 */
+ u_short priority_tx; /* != 0 - priority tx */
+ u_short mode; /* PIO, Shared Mem or Busmaster */
+ u_char bus;
+ u_char pci_bus;
+ u_char pci_device_fn;
+ short mem_mapped; /* memory mapped access */
+ u_int *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */
+ u_int *mem_ptr_phys; /* physical memory mapped area */
+ short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */
+ int hub_status; /* was login to hub successful? */
u_char mac1_mode;
u_char mac2_mode;
- struct net_device_stats stats;
+ hp100_stats_t stats;
+
+ /* Rings for busmaster mode: */
+ hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */
+ hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */
+ hp100_ring_t *txrhead; /* Head (oldest) index into txring */
+ hp100_ring_t *txrtail; /* Tail (newest) index into txring */
+
+ hp100_ring_t rxring[ MAX_RX_PDL ];
+ hp100_ring_t txring[ MAX_TX_PDL ];
+
+ u_int *page_vaddr; /* Virtual address of allocated page */
+ u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */
+ int rxrcommit; /* # Rx PDLs commited to adapter */
+ int txrcommit; /* # Tx PDLs commited to adapter */
};
/*
@@ -161,78 +165,124 @@
static struct hp100_eisa_id hp100_eisa_ids[] = {
- /* 10/100 EISA card with REVA Cascade chip */
- { 0x080F1F022, "HP J2577 rev A", HP100_BUS_EISA },
+ /* 10/100 EISA card with revision A Cascade chip */
+ { 0x80F1F022, "HP J2577 rev A", HP100_BUS_EISA },
- /* 10/100 ISA card with REVA Cascade chip */
- { 0x050F1F022, "HP J2573 rev A", HP100_BUS_ISA },
+ /* 10/100 ISA card with revision A Cascade chip */
+ { 0x50F1F022, "HP J2573 rev A", HP100_BUS_ISA },
/* 10 only EISA card with Cascade chip */
- { 0x02019F022, "HP 27248B", HP100_BUS_EISA },
+ { 0x2019F022, "HP 27248B", HP100_BUS_EISA },
/* 10/100 EISA card with Cascade chip */
- { 0x04019F022, "HP J2577", HP100_BUS_EISA },
+ { 0x4019F022, "HP J2577", HP100_BUS_EISA },
/* 10/100 ISA card with Cascade chip */
- { 0x05019F022, "HP J2573", HP100_BUS_ISA },
+ { 0x5019F022, "HP J2573", HP100_BUS_ISA },
+
+ /* 10/100 PCI card - old J2585A */
+ { 0x1030103c, "HP J2585A", HP100_BUS_PCI },
+
+ /* 10/100 PCI card - new J2585B - master capable */
+ { 0x1041103c, "HP J2585B", HP100_BUS_PCI },
+
+ /* 10 Mbit Combo Adapter */
+ { 0x1042103c, "HP J2970", HP100_BUS_PCI },
- /* 10/100 PCI card */
- /* Note: ID for this card is same as PCI vendor/device numbers. */
- { 0x01030103c, "HP J2585", HP100_BUS_PCI },
+ /* 10 Mbit 10baseT Adapter */
+ { 0x1040103c, "HP J2973", HP100_BUS_PCI },
+
+ /* 10/100 EISA card from Compex */
+ { 0x0103180e, "ReadyLink ENET100-VG4", HP100_BUS_EISA },
+
+ /* 10/100 PCI card from Compex (J2585A compatible) */
+ { 0x011211f6, "ReadyLink ENET100-VG4", HP100_BUS_PCI }
};
static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
+static int hp100_mode = 1;
+
+#ifdef LINUX_2_1
+MODULE_PARM( hp100_rx_ratio, "1i" );
+MODULE_PARM( hp100_priority_tx, "1i" );
+MODULE_PARM( hp100_mode, "1i" );
+#endif
/*
* prototypes
*/
-static int hp100_probe1( struct device *dev, int ioaddr, int bus );
-static int hp100_open( struct device *dev );
-static int hp100_close( struct device *dev );
-static int hp100_start_xmit( struct sk_buff *skb, struct device *dev );
+static int hp100_probe1( struct device *dev, int ioaddr, u_char bus, u_char pci_bus, u_char pci_device_fn );
+static int hp100_open( struct device *dev );
+static int hp100_close( struct device *dev );
+static int hp100_start_xmit( struct sk_buff *skb, struct device *dev );
+static int hp100_start_xmit_bm (struct sk_buff *skb, struct device *dev );
static void hp100_rx( struct device *dev );
-static struct net_device_stats *hp100_get_stats( struct device *dev );
+static hp100_stats_t *hp100_get_stats( struct device *dev );
static void hp100_update_stats( struct device *dev );
static void hp100_clear_stats( int ioaddr );
static void hp100_set_multicast_list( struct device *dev);
static void hp100_interrupt( int irq, void *dev_id, struct pt_regs *regs );
-
static void hp100_start_interface( struct device *dev );
static void hp100_stop_interface( struct device *dev );
static void hp100_load_eeprom( struct device *dev );
-static int hp100_sense_lan( struct device *dev );
-static int hp100_login_to_vg_hub( struct device *dev );
-static int hp100_down_vg_link( struct device *dev );
+static int hp100_sense_lan( struct device *dev );
+static int hp100_login_to_vg_hub( struct device *dev, u_short force_relogin );
+static int hp100_down_vg_link( struct device *dev );
+static void hp100_cascade_reset( struct device *dev, u_short enable );
+static void hp100_BM_shutdown( struct device *dev );
+static void hp100_mmuinit( struct device *dev );
+static void hp100_init_pdls( struct device *dev );
+static int hp100_init_rxpdl( register hp100_ring_t *ringptr, register u_int *pdlptr);
+static int hp100_init_txpdl( register hp100_ring_t *ringptr, register u_int *pdlptr);
+static void hp100_rxfill( struct device *dev );
+static void hp100_hwinit( struct device *dev );
+static void hp100_clean_txring( struct device *dev );
+#ifdef HP100_DEBUG
+static void hp100_RegisterDump( struct device *dev );
+#endif
+
+/* TODO: This function should not really be needed in a good design... */
+static void wait( void )
+{
+ udelay( 1000 );
+}
/*
* probe functions
+ * These functions should - if possible - avoid doing write operations
+ * since this could cause problems when the card is not installed.
*/
__initfunc(int hp100_probe( struct device *dev ))
{
int base_addr = dev ? dev -> base_addr : 0;
- int ioaddr;
+ int ioaddr = 0;
#ifdef CONFIG_PCI
int pci_start_index = 0;
#endif
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4200, TRACE );
+ printk( "hp100: probe\n" );
+#endif
+
if ( base_addr > 0xff ) /* Check a single specified location. */
{
if ( check_region( base_addr, HP100_REGION_SIZE ) ) return -EINVAL;
if ( base_addr < 0x400 )
- return hp100_probe1( dev, base_addr, HP100_BUS_ISA );
- else
- return hp100_probe1( dev, base_addr, HP100_BUS_EISA );
+ return hp100_probe1( dev, base_addr, HP100_BUS_ISA, 0, 0 );
+ else
+ return hp100_probe1( dev, base_addr, HP100_BUS_EISA, 0, 0 );
}
- else
+ else
#ifdef CONFIG_PCI
- if ( base_addr > 0 && base_addr < 8 + 1 )
- pci_start_index = 0x100 | ( base_addr - 1 );
- else
+ if ( base_addr > 0 && base_addr < 8 + 1 )
+ pci_start_index = 0x100 | ( base_addr - 1 );
+ else
#endif
- if ( base_addr != 0 ) return -ENXIO;
+ if ( base_addr != 0 ) return -ENXIO;
/* at first - scan PCI bus(es) */
@@ -249,65 +299,80 @@
u_char pci_bus, pci_device_fn;
u_short pci_command;
- if ( pcibios_find_device( PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A,
- pci_index, &pci_bus,
- &pci_device_fn ) != 0 ) break;
+ if ((pcibios_find_device( PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A,
+ pci_index, &pci_bus,
+ &pci_device_fn ) != 0 ) &&
+ (pcibios_find_device( PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B,
+ pci_index, &pci_bus,
+ &pci_device_fn ) != 0 ) &&
+ (pcibios_find_device( PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4,
+ pci_index, &pci_bus,
+ &pci_device_fn ) != 0 ) ) break;
+
pcibios_read_config_dword( pci_bus, pci_device_fn,
- PCI_BASE_ADDRESS_0, &ioaddr );
+ PCI_BASE_ADDRESS_0, &ioaddr );
- ioaddr &= ~3; /* remove I/O space marker in bit 0. */
+ ioaddr &= ~3; /* remove I/O space marker in bit 0. */
if ( check_region( ioaddr, HP100_REGION_SIZE ) ) continue;
pcibios_read_config_word( pci_bus, pci_device_fn,
- PCI_COMMAND, &pci_command );
+ PCI_COMMAND, &pci_command );
if ( !( pci_command & PCI_COMMAND_MASTER ) )
{
-#ifdef HP100_DEBUG_PCI
+#ifdef HP100_DEBUG
printk( "hp100: PCI Master Bit has not been set. Setting...\n" );
#endif
pci_command |= PCI_COMMAND_MASTER;
pcibios_write_config_word( pci_bus, pci_device_fn,
- PCI_COMMAND, pci_command );
+ PCI_COMMAND, pci_command );
}
-#ifdef HP100_DEBUG_PCI
+#ifdef HP100_DEBUG
printk( "hp100: PCI adapter found at 0x%x\n", ioaddr );
#endif
- if ( hp100_probe1( dev, ioaddr, HP100_BUS_PCI ) == 0 ) return 0;
+ if ( hp100_probe1( dev, ioaddr, HP100_BUS_PCI, pci_bus, pci_device_fn ) == 0 )
+ return 0;
}
}
if ( pci_start_index > 0 ) return -ENODEV;
#endif /* CONFIG_PCI */
- /* at second - probe all EISA possible port regions (if EISA bus present) */
-
+ /* Second: Probe all EISA possible port regions (if EISA bus present) */
for ( ioaddr = 0x1c38; EISA_bus && ioaddr < 0x10000; ioaddr += 0x400 )
{
if ( check_region( ioaddr, HP100_REGION_SIZE ) ) continue;
- if ( hp100_probe1( dev, ioaddr, HP100_BUS_EISA ) == 0 ) return 0;
+ if ( hp100_probe1( dev, ioaddr, HP100_BUS_EISA, 0, 0 ) == 0 ) return 0;
}
- /* at third - probe all ISA possible port regions */
-
+ /* Third Probe all ISA possible port regions */
for ( ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x20 )
{
if ( check_region( ioaddr, HP100_REGION_SIZE ) ) continue;
- if ( hp100_probe1( dev, ioaddr, HP100_BUS_ISA ) == 0 ) return 0;
+ if ( hp100_probe1( dev, ioaddr, HP100_BUS_ISA, 0, 0 ) == 0 ) return 0;
}
return -ENODEV;
}
-__initfunc(static int hp100_probe1( struct device *dev, int ioaddr, int bus ))
+
+__initfunc(static int hp100_probe1( struct device *dev, int ioaddr, u_char bus, u_char pci_bus, u_char pci_device_fn ))
{
int i;
+
u_char uc, uc_1;
u_int eisa_id;
+ u_int chip;
+ u_int memory_size = 0;
short mem_mapped;
- u_char *mem_ptr_phys, *mem_ptr_virt;
+ u_int *mem_ptr_phys, *mem_ptr_virt;
struct hp100_private *lp;
struct hp100_eisa_id *eid;
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4201, TRACE );
+ printk("hp100: probe1\n");
+#endif
+
if ( dev == NULL )
{
#ifdef HP100_DEBUG
@@ -315,19 +380,27 @@
#endif
return EIO;
}
+
+ if ( hp100_inw( HW_ID ) != HP100_HW_ID_CASCADE )
+ {
+ return -ENODEV;
+ }
+ else
+ {
+ chip = hp100_inw( PAGING ) & HP100_CHIPID_MASK;
+#ifdef HP100_DEBUG
+ if ( chip == HP100_CHIPID_SHASTA )
+ printk("hp100: Shasta Chip detected. (This is a pre 802.12 chip)\n");
+ else if ( chip == HP100_CHIPID_RAINIER )
+ printk("hp100: Rainier Chip detected. (This is a pre 802.12 chip)\n");
+ else if ( chip == HP100_CHIPID_LASSEN )
+ printk("hp100: Lassen Chip detected.\n");
+ else
+ printk("hp100: Warning: Unknown CASCADE chip (id=0x%.4x).\n",chip);
+#endif
+ }
- if ( bus != HP100_BUS_PCI ) /* don't check PCI cards again */
- if ( inb( ioaddr + 0 ) != HP100_HW_ID_0 ||
- inb( ioaddr + 1 ) != HP100_HW_ID_1 ||
- ( inb( ioaddr + 2 ) & 0xf0 ) != HP100_HW_ID_2_REVA ||
- inb( ioaddr + 3 ) != HP100_HW_ID_3 )
- return -ENODEV;
-
- dev -> base_addr = ioaddr;
-
-#ifdef HP100_DEBUG_PROBE1
- printk( "hp100_probe1: card found at port 0x%x\n", ioaddr );
-#endif
+ dev->base_addr = ioaddr;
hp100_page( ID_MAC_ADDR );
for ( i = uc = eisa_id = 0; i < 4; i++ )
@@ -339,17 +412,13 @@
}
uc += hp100_inb( BOARD_ID + 4 );
-#ifdef HP100_DEBUG_PROBE1
- printk( "hp100_probe1: EISA ID = 0x%08x checksum = 0x%02x\n", eisa_id, uc );
-#endif
-
- if ( uc != 0xff ) /* bad checksum? */
+ if ( uc != 0xff ) /* bad checksum? */
{
- printk( "hp100_probe: bad EISA ID checksum at base port 0x%x\n", ioaddr );
+ printk("hp100_probe: bad EISA ID checksum at base port 0x%x\n", ioaddr );
return -ENODEV;
}
- for ( i = 0; i < sizeof( hp100_eisa_ids ) / sizeof( struct hp100_eisa_id ); i++ )
+ for ( i=0; i<sizeof(hp100_eisa_ids)/sizeof(struct hp100_eisa_id); i++)
if ( ( hp100_eisa_ids[ i ].id & 0xf0ffffff ) == ( eisa_id & 0xf0ffffff ) )
break;
if ( i >= sizeof( hp100_eisa_ids ) / sizeof( struct hp100_eisa_id ) )
@@ -358,10 +427,10 @@
return -ENODEV;
}
eid = &hp100_eisa_ids[ i ];
- if ( ( eid -> id & 0x0f000000 ) < ( eisa_id & 0x0f000000 ) )
+ if ( ( eid->id & 0x0f000000 ) < ( eisa_id & 0x0f000000 ) )
{
printk( "hp100_probe1: newer version of card %s at port 0x%x - unsupported\n",
- eid -> name, ioaddr );
+ eid->name, ioaddr );
return -ENODEV;
}
@@ -369,461 +438,1592 @@
uc += hp100_inb( LAN_ADDR + i );
if ( uc != 0xff )
{
- printk( "hp100_probe1: bad lan address checksum (card %s at port 0x%x)\n",
- eid -> name, ioaddr );
+ printk("hp100_probe1: bad lan address checksum (card %s at port 0x%x)\n",
+ eid->name, ioaddr );
return -EIO;
}
-#ifndef HP100_IO_MAPPED
+ /* 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.
+ */
+
+ if(hp100_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(hp100_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(hp100_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");
+ }
+ hp100_mode=1;
+ }
+
+ if(hp100_mode==1) /* default behaviour */
+ {
+ if( (hp100_inw(OPTION_LSW)&HP100_IO_EN) &&
+ (~hp100_inw(OPTION_LSW)&HP100_MEM_EN) &&
+ (~hp100_inw(OPTION_LSW)&(HP100_BM_WRITE|HP100_BM_READ))
+ )
+ {
+#ifdef HP100_DEBUG
+ printk("hp100: IO_EN bit is set on card.\n");
+#endif
+ hp100_mode=3;
+ }
+ else if( ( chip==HP100_CHIPID_LASSEN ) &&
+ ( (hp100_inw(OPTION_LSW)&(HP100_BM_WRITE|HP100_BM_READ) ) ==
+ (HP100_BM_WRITE|HP100_BM_READ) ) )
+ {
+ printk("hp100: Busmaster mode enabled.\n");
+ hp100_outw(HP100_MEM_EN|HP100_IO_EN|HP100_RESET_LB, OPTION_LSW);
+ }
+ else
+ {
+#ifdef HP100_DEBUG
+ printk("hp100: Card not configured for BM or BM not supported with this card. Trying shared memory mode.\n");
+#endif
+ /* In this case, try shared memory mode */
+ hp100_mode=2;
+ hp100_outw(HP100_MEM_EN|HP100_SET_LB, OPTION_LSW);
+ /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */
+ }
+ }
+
+ /* Check for shared memory on the card, eventually remap it */
hp100_page( HW_MAP );
- mem_mapped = ( hp100_inw( OPTION_LSW ) &
- ( HP100_MEM_EN | HP100_BM_WRITE | HP100_BM_READ ) ) != 0;
+ mem_mapped = (( hp100_inw( OPTION_LSW ) & ( HP100_MEM_EN ) ) != 0);
mem_ptr_phys = mem_ptr_virt = NULL;
- if ( mem_mapped )
+ memory_size = (8192<<( (hp100_inb(SRAM)>>5)&0x07));
+
+ /* For memory mapped or busmaster mode, we want the memory address */
+ if ( mem_mapped || (hp100_mode==1))
{
- mem_ptr_phys = (u_char *)( hp100_inw( MEM_MAP_LSW ) |
- ( hp100_inw( MEM_MAP_MSW ) << 16 ) );
- (u_int)mem_ptr_phys &= ~0x1fff; /* 8k alignment */
+ mem_ptr_phys = (u_int *)( hp100_inw( MEM_MAP_LSW ) |
+ ( hp100_inw( MEM_MAP_MSW ) << 16 ) );
+ (u_int)mem_ptr_phys &= ~0x1fff; /* 8k alignment */
+
if ( bus == HP100_BUS_ISA && ( (u_long)mem_ptr_phys & ~0xfffff ) != 0 )
{
+ printk("hp100: Can only use programmed i/o mode.\n");
mem_ptr_phys = NULL;
mem_mapped = 0;
+ hp100_mode=3; /* Use programmed i/o */
}
- if ( mem_mapped && bus == HP100_BUS_PCI )
- {
- if ( ( mem_ptr_virt = ioremap( (u_long)mem_ptr_phys, 0x2000 ) ) == NULL )
- {
- printk( "hp100: ioremap for high PCI memory at 0x%lx failed\n", (u_long)mem_ptr_phys );
- mem_ptr_phys = NULL;
- mem_mapped = 0;
- }
- }
- }
-#else
- mem_mapped = 0;
- mem_ptr_phys = mem_ptr_virt = NULL;
+
+ /* We do not need access to shared memory in busmaster mode */
+ /* However in slave mode we need to remap high (>1GB) card memory */
+ if(hp100_mode!=1) /* = not busmaster */
+ {
+ if ( bus == HP100_BUS_PCI )
+ {
+ /* We try with smaller memory sizes, if ioremap fails */
+ for(; memory_size>16383; memory_size=memory_size/2)
+ {
+ if((mem_ptr_virt=ioremap((u_long)mem_ptr_phys,memory_size))==NULL)
+ {
+#ifdef HP100_DEBUG
+ printk( "hp100: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", memory_size, (u_long)mem_ptr_phys );
#endif
+ }
+ else
+ {
+#ifdef HP100_DEBUG
+ printk( "hp100: remapped 0x%x bytes high PCI memory at 0x%lx to 0x%lx.\n", memory_size, (u_long)mem_ptr_phys, (u_long)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");
+ hp100_mode=3;
+ memory_size = (8192<<( (hp100_inb(SRAM)>>5)&0x07) );
+ }
+ }
+ }
+
+ }
+
+ if(hp100_mode==3) /* io mapped forced */
+ {
+ mem_mapped = 0;
+ mem_ptr_phys = mem_ptr_virt = NULL;
+ printk("hp100: Using (slow) programmed i/o mode.\n");
+ }
- if ( ( dev -> priv = kmalloc( sizeof( struct hp100_private ), GFP_KERNEL ) ) == NULL )
+ /* Initialise the "private" data structure for this card. */
+ if ( (dev->priv=kmalloc(sizeof(struct hp100_private), GFP_KERNEL)) == NULL)
return -ENOMEM;
- memset( dev -> priv, 0, sizeof( struct hp100_private ) );
+ memset( dev->priv, 0, sizeof(struct hp100_private) );
- lp = (struct hp100_private *)dev -> priv;
- lp -> id = eid;
- lp -> mem_mapped = mem_mapped;
- lp -> mem_ptr_phys = mem_ptr_phys;
- lp -> mem_ptr_virt = mem_ptr_virt;
+ lp = (struct hp100_private *)dev->priv;
+ lp->id = eid;
+ lp->chip = chip;
+ lp->mode = hp100_mode;
+ lp->pci_bus = pci_bus;
+ lp->bus = bus;
+ lp->pci_device_fn = pci_device_fn;
+ 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;
+ lp->soft_model = hp100_inb( SOFT_MODEL );
+ lp->mac1_mode = HP100_MAC1MODE3;
+ lp->mac2_mode = HP100_MAC2MODE3;
+
+ dev->base_addr = ioaddr;
+
+ lp->memory_size = memory_size;
+ lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */
+
+ /* memory region for programmed i/o */
+ request_region( dev->base_addr, HP100_REGION_SIZE, eid->name );
+
+ dev->open = hp100_open;
+ dev->stop = hp100_close;
+
+ if (lp->mode==1) /* busmaster */
+ dev->hard_start_xmit = hp100_start_xmit_bm;
+ else
+ dev->hard_start_xmit = hp100_start_xmit;
- dev -> base_addr = ioaddr;
+ dev->get_stats = hp100_get_stats;
+ dev->set_multicast_list = &hp100_set_multicast_list;
+
+ /* Ask the card for which IRQ line it is configured */
hp100_page( HW_MAP );
- dev -> irq = hp100_inb( IRQ_CHANNEL ) & HP100_IRQ_MASK;
- if ( dev -> irq == 2 ) dev -> irq = 9;
- lp -> memory_size = 0x200 << ( ( hp100_inb( SRAM ) & 0xe0 ) >> 5 );
- lp -> rx_ratio = hp100_rx_ratio;
-
- dev -> open = hp100_open;
- dev -> stop = hp100_close;
- dev -> hard_start_xmit = hp100_start_xmit;
- dev -> get_stats = hp100_get_stats;
- dev -> set_multicast_list = &hp100_set_multicast_list;
+ dev->irq = hp100_inb( IRQ_CHANNEL ) & HP100_IRQMASK;
+ if ( dev->irq == 2 )
+ dev->irq = 9;
- request_region( dev -> base_addr, HP100_REGION_SIZE, eid -> name );
+ 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 );
+ dev->dev_addr[ i ] = hp100_inb( LAN_ADDR + i );
+ /* Reset statistics (counters) */
hp100_clear_stats( ioaddr );
ether_setup( dev );
- lp -> lan_type = hp100_sense_lan( dev );
-
- printk( "%s: %s at 0x%x, IRQ %d, ",
- dev -> name, lp -> id -> name, ioaddr, dev -> irq );
+ /* If busmaster mode is wanted, a dma-capable memory area is needed for
+ * the rx and tx PDLs
+ * PCI cards can access the whole PC memory. Therefore GFP_DMA is not
+ * needed for the allocation of the memory area.
+ */
+
+ /* TODO: We do not need this with old cards, where PDLs are stored
+ * in the cards shared memory area. But currently, busmaster has been
+ * implemented/tested only with the lassen chip anyway... */
+ if(lp->mode==1) /* busmaster */
+ {
+ /* Get physically continous memory for TX & RX PDLs */
+ if ( (lp->page_vaddr=kmalloc(MAX_RINGSIZE+0x0f,GFP_KERNEL) ) == NULL)
+ return -ENOMEM;
+ lp->page_vaddr_algn=((u_int *) ( ((u_int)(lp->page_vaddr)+0x0f) &~0x0f));
+ memset(lp->page_vaddr, 0, MAX_RINGSIZE+0x0f);
+
+#ifdef HP100_DEBUG_BM
+ printk("hp100: Reserved DMA memory from 0x%x to 0x%x\n",
+ (u_int)lp->page_vaddr_algn,
+ (u_int)lp->page_vaddr_algn+MAX_RINGSIZE);
+#endif
+ lp->rxrcommit = lp->txrcommit = 0;
+ lp->rxrhead = lp->rxrtail = &(lp->rxring[0]);
+ lp->txrhead = lp->txrtail = &(lp->txring[0]);
+ }
+
+ /* Initialise the card. */
+ /* (I'm not really sure if it's a good idea to do this during probing, but
+ * like this it's assured that the lan connection type can be sensed
+ * correctly)
+ */
+ hp100_hwinit( dev );
+
+ /* Try to find out which kind of LAN the card is connected to. */
+ lp->lan_type = hp100_sense_lan( dev );
+
+ /* Print out a message what about what we think we have probed. */
+ printk( "hp100: %s: %s at 0x%x, IRQ %d, ",
+ dev->name, lp->id->name, ioaddr, dev->irq );
switch ( bus ) {
- case HP100_BUS_EISA: printk( "EISA" ); break;
- case HP100_BUS_PCI: printk( "PCI" ); break;
- default: printk( "ISA" ); break;
+ 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 - 4 ), lp -> rx_ratio );
- if ( mem_mapped )
+ lp->memory_size >> 10, lp->rx_ratio );
+
+ if ( lp->mode==2 ) /* memory mapped */
{
printk( "%s: Memory area at 0x%lx-0x%lx",
- dev -> name, (u_long)mem_ptr_phys, (u_long)mem_ptr_phys + 0x1fff );
+ dev->name,(u_long)mem_ptr_phys,(u_long)mem_ptr_phys+(u_long)lp->memory_size );
if ( mem_ptr_virt )
- printk( " (virtual base 0x%lx)", (u_long)mem_ptr_virt );
+ printk( " (virtual base 0x%lx)", (u_long)mem_ptr_virt );
printk( ".\n" );
+
+ /* Set for info when doing ifconfig */
+ dev->mem_start = (u_long)mem_ptr_phys;
+ dev->mem_end = (u_long)mem_ptr_phys+(u_long)lp->memory_size;
}
- printk( "%s: ", dev -> name );
- if ( lp -> lan_type != HP100_LAN_ERR )
+ printk( "%s: ", dev->name );
+ if ( lp->lan_type != HP100_LAN_ERR )
printk( "Adapter is attached to " );
- switch ( lp -> lan_type ) {
- case HP100_LAN_100:
- printk( "100Mb/s Voice Grade AnyLAN network.\n" );
- break;
- case HP100_LAN_10:
- printk( "10Mb/s network.\n" );
- break;
- default:
- printk( "Warning! Link down.\n" );
+ switch ( lp->lan_type ) {
+ case HP100_LAN_100:
+ printk( "100Mb/s Voice Grade AnyLAN network.\n" );
+ break;
+ case HP100_LAN_10:
+ printk( "10Mb/s network.\n" );
+ break;
+ default:
+ printk( "Warning! Link down.\n" );
}
+ return 0;
+}
- hp100_stop_interface( dev );
+
+/* This procedure puts the card into a stable init state */
+static void hp100_hwinit( struct device *dev )
+{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
- return 0;
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4202, TRACE );
+ printk("hp100: hwinit\n");
+#endif
+
+ /* Initialise the card. -------------------------------------------- */
+
+ /* Clear all pending Ints and disable Ints */
+ hp100_page( PERFORMANCE );
+ hp100_outw( 0xfefe, IRQ_MASK ); /* mask off all ints */
+ hp100_outw( 0xffff, IRQ_STATUS ); /* clear all pending ints */
+
+ hp100_outw( HP100_INT_EN | HP100_RESET_LB, OPTION_LSW );
+ hp100_outw( HP100_TRI_INT | HP100_SET_HB, OPTION_LSW );
+
+ if(lp->mode==1)
+ {
+ hp100_BM_shutdown( dev ); /* disables BM, puts cascade in reset */
+ wait();
+ }
+ else
+ {
+ hp100_outw( HP100_INT_EN | HP100_RESET_LB, OPTION_LSW );
+ hp100_cascade_reset( dev, TRUE );
+ hp100_page( MAC_CTRL );
+ hp100_andb( ~(HP100_RX_EN|HP100_TX_EN), MAC_CFG_1);
+ }
+
+ /* Initiate EEPROM reload */
+ hp100_load_eeprom( dev );
+
+ wait();
+
+ /* Go into reset again. */
+ hp100_cascade_reset( dev, TRUE );
+
+ /* Set Option Registers to a safe state */
+ hp100_outw( HP100_DEBUG_EN |
+ HP100_RX_HDR |
+ HP100_EE_EN |
+ HP100_BM_WRITE |
+ HP100_BM_READ | HP100_RESET_HB |
+ HP100_FAKE_INT |
+ HP100_INT_EN |
+ HP100_MEM_EN |
+ HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
+
+ hp100_outw( HP100_TRI_INT |
+ HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW );
+
+ hp100_outb( HP100_PRIORITY_TX |
+ HP100_ADV_NXT_PKT |
+ HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW );
+
+ /* TODO: Configure MMU for Ram Test. */
+ /* TODO: Ram Test. */
+
+ /* Re-check if adapter is still at same i/o location */
+ /* (If the base i/o in eeprom has been changed but the */
+ /* registers had not been changed, a reload of the eeprom */
+ /* would move the adapter to the address stored in eeprom */
+
+ /* TODO: Code to implement. */
+
+ /* Until here it was code from HWdiscover procedure. */
+ /* Next comes code from mmuinit procedure of SCO BM driver which is
+ * called from HWconfigure in the SCO driver. */
+
+ /* Initialise MMU, eventually switch on Busmaster Mode, initialise
+ * multicast filter...
+ */
+ hp100_mmuinit( dev );
+
+ /* We don't turn the interrupts on here - this is done by start_interface. */
+ wait(); /* TODO: Do we really need this? */
+
+ /* Enable Hardware (e.g. unreset) */
+ hp100_cascade_reset( dev, FALSE );
+
+ /* ------- initialisation complete ----------- */
+
+ /* Finally try to log in the Hub if there may be a VG connection. */
+ if( lp->lan_type != HP100_LAN_10 )
+ hp100_login_to_vg_hub( dev, FALSE ); /* relogin */
}
-/*
- * open/close functions
+
+/*
+ * mmuinit - Reinitialise Cascade MMU and MAC settings.
+ * Note: Must already be in reset and leaves card in reset.
*/
-
-static int hp100_open( struct device *dev )
+static void hp100_mmuinit( struct device *dev )
{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
int i;
- int ioaddr = dev -> base_addr;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
- if ( request_irq( dev -> irq, hp100_interrupt, SA_INTERRUPT, lp -> id -> name, NULL ) )
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4203, TRACE );
+ printk("hp100: mmuinit\n");
+#endif
+
+#ifdef HP100_DEBUG
+ if( 0!=(hp100_inw(OPTION_LSW)&HP100_HW_RST) )
{
- printk( "%s: unable to get IRQ %d\n", dev -> name, dev -> irq );
- return -EAGAIN;
+ printk("hp100: Not in reset when entering mmuinit. Fix me.\n");
+ return;
}
- irq2dev_map[ dev -> irq ] = dev;
+#endif
- MOD_INC_USE_COUNT;
+ /* 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 */
- dev -> tbusy = 0;
- dev -> trans_start = jiffies;
- dev -> interrupt = 0;
- dev -> start = 1;
-
- lp -> lan_type = hp100_sense_lan( dev );
- lp -> mac1_mode = HP100_MAC1MODE3;
- lp -> mac2_mode = HP100_MAC2MODE3;
+ /*
+ * 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( MAC_CTRL );
- hp100_orw( HP100_LINK_BEAT_DIS | HP100_RESET_LB, LAN_CFG_10 );
+ 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;
- hp100_stop_interface( dev );
- hp100_load_eeprom( dev );
+ 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 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: PDL_STOP = 0x%x\n", 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( HP100_MMAP_DIS | HP100_SET_HB |
- HP100_IO_EN | HP100_SET_LB, OPTION_LSW );
- hp100_outw( HP100_DEBUG_EN | HP100_RX_HDR | HP100_EE_EN | HP100_RESET_HB |
- HP100_FAKE_INT | HP100_RESET_LB, OPTION_LSW );
- hp100_outw( HP100_ADV_NXT_PKT | HP100_TX_CMD | HP100_RESET_LB |
- HP100_PRIORITY_TX | ( hp100_priority_tx ? HP100_SET_HB : HP100_RESET_HB ),
- OPTION_MSW );
+ hp100_outw( xmit_stop>>4 , TX_MEM_STOP );
+ hp100_outw( recv_stop>>4 , RX_MEM_STOP );
+#ifdef HP100_DEBUG_BM
+ printk("hp100: TX_STOP = 0x%x\n",xmit_stop>>4);
+ printk("hp100: RX_STOP = 0x%x\n",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: TX_MEM_STOP: 0x%x\n", hp100_inw(TX_MEM_STOP));
+ printk("hp100: RX_MEM_STOP: 0x%x\n", 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 );
- for ( i = 0; i < 8; i++ ) /* setup multicast filter to receive all */
- hp100_outb( 0xff, HASH_BYTE0 + i );
+ hp100_outb( dev->dev_addr[ i ], MAC_ADDR + i );
+
+ /* Zero the multicast hash registers */
+ for ( i = 0; i < 8; i++ )
+ hp100_outb( 0x0, HASH_BYTE0 + i );
+
+ /* Set up MAC defaults */
+ hp100_page( MAC_CTRL );
+
+ /* Go to LAN Page and zero all filter bits */
+ /* Zero accept error, accept multicast, accept broadcast and accept */
+ /* all directed packet bits */
+ hp100_andb( ~(HP100_RX_EN|
+ HP100_TX_EN|
+ HP100_ACC_ERRORED|
+ HP100_ACC_MC|
+ HP100_ACC_BC|
+ HP100_ACC_PHY), MAC_CFG_1 );
+
+ hp100_outb( 0x00, MAC_CFG_2 );
+
+ /* Zero the frame format bit. This works around a training bug in the */
+ /* new hubs. */
+ hp100_outb( 0x00, VG_LAN_CFG_2); /* (use 802.3) */
+
+ if(lp->priority_tx)
+ hp100_outb( HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW );
+ else
+ hp100_outb( HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW );
+
+ hp100_outb( HP100_ADV_NXT_PKT |
+ HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW );
+
+ /* If busmaster, initialize the PDLs */
+ if(lp->mode==1)
+ hp100_init_pdls( dev );
+
+ /* Go to performance page and initalize isr and imr registers */
hp100_page( PERFORMANCE );
- hp100_outw( 0xfefe, IRQ_MASK ); /* mask off all ints */
- hp100_outw( 0xffff, IRQ_STATUS ); /* ack IRQ */
- hp100_outw( (HP100_RX_PACKET | HP100_RX_ERROR | HP100_SET_HB) |
- (HP100_TX_ERROR | HP100_SET_LB ), IRQ_MASK );
- /* and enable few */
- hp100_reset_card();
- hp100_page( MMU_CFG );
- hp100_outw( ( lp -> memory_size * lp -> rx_ratio ) / 100, RX_MEM_STOP );
- hp100_outw( lp -> memory_size - 1, TX_MEM_STOP );
- hp100_unreset_card();
+ hp100_outw( 0xfefe, IRQ_MASK ); /* mask off all ints */
+ hp100_outw( 0xffff, IRQ_STATUS ); /* ack IRQ */
+}
+
+
+/*
+ * open/close functions
+ */
+
+static int hp100_open( struct device *dev )
+{
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+#ifdef HP100_DEBUG_B
+ int ioaddr=dev->base_addr;
+#endif
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4204, TRACE );
+ printk("hp100: open\n");
+#endif
+
+ /* New: if bus is PCI or EISA, interrupts might be shared interrupts */
+ if((lp->bus==HP100_BUS_PCI)||(lp->bus==HP100_BUS_EISA))
+ {
+ if(request_irq(dev->irq,hp100_interrupt,SA_SHIRQ,lp->id->name,dev))
+ {
+ printk( "%s: unable to get IRQ %d\n", dev->name, dev->irq );
+ return -EAGAIN;
+ }
+ }
+ else
+ if(request_irq(dev->irq, hp100_interrupt, SA_INTERRUPT, lp->id->name, NULL))
+ {
+ printk( "%s: unable to get IRQ %d\n", dev->name, dev->irq );
+ return -EAGAIN;
+ }
+
+ irq2dev_map[ dev->irq ] = dev;
+
+ MOD_INC_USE_COUNT;
+
+ dev->tbusy = 0;
+ dev->trans_start = jiffies;
+ dev->interrupt = 0;
+ dev->start = 1;
+
+ lp->lan_type = hp100_sense_lan( dev );
+ lp->mac1_mode = HP100_MAC1MODE3;
+ lp->mac2_mode = HP100_MAC2MODE3;
- if ( lp -> lan_type == HP100_LAN_100 )
- lp -> hub_status = hp100_login_to_vg_hub( dev );
+ hp100_stop_interface( dev );
+
+ hp100_hwinit( dev );
- hp100_start_interface( 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 device *dev )
{
- int ioaddr = dev -> base_addr;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4205, TRACE );
+ printk("hp100:close\n");
+#endif
hp100_page( PERFORMANCE );
- hp100_outw( 0xfefe, IRQ_MASK ); /* mask off all IRQs */
+ hp100_outw( 0xfefe, IRQ_MASK ); /* mask off all IRQs */
hp100_stop_interface( dev );
- if ( lp -> lan_type == HP100_LAN_100 ) /* relogin */
- hp100_login_to_vg_hub( dev );
+ if ( lp->lan_type == HP100_LAN_100 )
+ lp->hub_status=hp100_login_to_vg_hub( dev, FALSE );
- dev -> tbusy = 1;
- dev -> start = 0;
+ dev->tbusy = 1;
+ dev->start = 0;
- free_irq( dev -> irq, NULL );
- irq2dev_map[ dev -> irq ] = NULL;
+ if ((lp->bus==HP100_BUS_PCI)||(lp->bus==HP100_BUS_EISA))
+ free_irq( dev->irq, dev );
+ else
+ free_irq( dev->irq, NULL );
+ irq2dev_map[ dev->irq ] = NULL;
MOD_DEC_USE_COUNT;
return 0;
}
+
+/*
+ * Configure the PDL Rx rings and LAN
+ */
+static void hp100_init_pdls( struct device *dev )
+{
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ hp100_ring_t *ringptr;
+ u_int *pageptr;
+ int i;
+
+#ifdef HP100_DEBUG_B
+ int ioaddr = dev->base_addr;
+#endif
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4206, TRACE );
+ printk("hp100: init pdls\n");
+#endif
+
+ if(0==lp->page_vaddr_algn)
+ printk("hp100: Warning: lp->page_vaddr_algn not initialised!\n");
+ 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(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(ringptr, pageptr);
+ }
+ }
+}
+
+
+/* These functions "format" the entries in the pdl structure */
+/* They return how much memory the fragments need. */
+static int hp100_init_rxpdl( register hp100_ring_t *ringptr, register u32 *pdlptr )
+{
+ /* pdlptr is starting adress for this pdl */
+
+ if( 0!=( ((unsigned)pdlptr) & 0xf) )
+ printk("hp100: Init rxpdl: Unaligned pdlptr 0x%x.\n",(unsigned)pdlptr);
+
+ ringptr->pdl = pdlptr+1;
+ ringptr->pdl_paddr = virt_to_bus(pdlptr+1);
+ ringptr->skb = (void *) NULL;
+
+ /*
+ * Write address and length of first PDL Fragment (which is used for
+ * storing the RX-Header
+ * We use the 4 bytes _before_ the PDH in the pdl memory area to
+ * store this information. (PDH is at offset 0x04)
+ */
+ /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */
+
+ *(pdlptr+2) =(u_int) virt_to_bus(pdlptr); /* Address Frag 1 */
+ *(pdlptr+3) = 4; /* Length Frag 1 */
+
+ return( ( ((MAX_RX_FRAG*2+2)+3) /4)*4 );
+}
+
+
+static int hp100_init_txpdl( register hp100_ring_t *ringptr, register u32 *pdlptr )
+{
+ if( 0!=( ((unsigned)pdlptr) & 0xf) )
+ printk("hp100: Init txpdl: Unaligned pdlptr 0x%x.\n",(unsigned) pdlptr);
+
+ ringptr->pdl = pdlptr; /* +1; */
+ ringptr->pdl_paddr = virt_to_bus(pdlptr); /* +1 */
+ ringptr->skb = (void *) NULL;
+
+ return((((MAX_TX_FRAG*2+2)+3)/4)*4);
+}
+
+
/*
- * transmit
+ * 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
+ */
+int hp100_build_rx_pdl( hp100_ring_t *ringptr, struct 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: build rx pdl\n");
+#endif
+
+ /* Allocate skb buffer of maximum size */
+ /* Note: This depends on the alloc_skb functions allocating more
+ * space than requested, i.e. aligning to 16bytes */
+
+ ringptr->skb = dev_alloc_skb( ((MAX_ETHER_SIZE+2+3)/4)*4 );
+
+ if(NULL!=ringptr->skb)
+ {
+ /*
+ * Reserve 2 bytes at the head of the buffer to land the IP header
+ * on a long word boundary (According to the Network Driver section
+ * in the Linux KHG, this should help to increase performance.)
+ */
+ skb_reserve(ringptr->skb, 2);
+
+ ringptr->skb->dev=dev;
+ ringptr->skb->data=(u_char *)skb_put(ringptr->skb, MAX_ETHER_SIZE );
+
+ /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */
+ /* Note: 1st Fragment is used for the 4 byte packet status
+ * (receive header). Its PDL entries are set up by init_rxpdl. So
+ * here we only have to set up the PDL fragment entries for the data
+ * part. Those 4 bytes will be stored in the DMA memory region
+ * directly before the PDL.
+ */
+#ifdef HP100_DEBUG_BM
+ printk("hp100: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n",
+ (u_int) ringptr->pdl,
+ ((MAX_ETHER_SIZE+2+3)/4)*4,
+ (unsigned int) ringptr->skb->data);
+#endif
+
+ ringptr->pdl[0] = 0x00020000; /* Write PDH */
+ ringptr->pdl[3] = ((u_int)virt_to_bus(ringptr->skb->data));
+ ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */
+
+#ifdef HP100_DEBUG_BM
+ for(p=(ringptr->pdl); p<(ringptr->pdl+5); p++)
+ printk("Adr 0x%.8x = 0x%.8x\n",(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: build_rx_pdl: PDH@0x%x, No space for skb.\n",
+ (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 device *dev )
+{
+ int ioaddr=dev->base_addr;
+
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ hp100_ring_t *ringptr;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4208, TRACE );
+ printk("hp100: rxfill\n");
+#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: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n",
+ 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 device *dev )
+{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ unsigned long time;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4209, TRACE );
+ printk("hp100: bm shutdown\n");
+#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: BM shutdown error.\n");
+
+ /* To ensure all bus master outloading activity has ceased,
+ * wait until the Tx PDA count goes to zero or no more Tx space
+ * available in the Tx region of the card.
+ */
+ /* 100 ms timeout */
+ for(time=0; time<10000; time++) {
+ if ( (0 == hp100_inb( TX_PKT_CNT )) &&
+ (0 != (hp100_inb( TX_MEM_FREE )&HP100_AUTO_COMPARE))) break;
+ }
+
+ /* Disable Busmaster mode */
+ hp100_page(HW_MAP);
+ hp100_andb( ~HP100_BM_MASTER, BM );
+ } /* end of shutdown procedure for non-etr parts */
+
+ hp100_cascade_reset( dev, TRUE );
+ }
+ hp100_page( PERFORMANCE );
+ hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW );
+ /* Busmaster mode should be shut down now. */
+}
+
+
+
+/*
+ * transmit functions
*/
+/* tx function for busmaster mode */
+static int hp100_start_xmit_bm( struct sk_buff *skb, struct device *dev )
+{
+ int i, ok_flag;
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ hp100_ring_t *ringptr;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4210, TRACE );
+ printk("hp100: start_xmit_bm\n");
+#endif
+
+ if ( skb==NULL )
+ {
+ dev_tint( dev );
+ return 0;
+ }
+
+ if ( skb->len <= 0 ) return 0;
+
+ /* Get Tx ring tail pointer */
+ if( lp->txrtail->next==lp->txrhead )
+ {
+ /* No memory. */
+#ifdef HP100_DEBUG
+ printk("hp100: start_xmit_bm: No TX PDL available.\n");
+#endif
+ /* not waited long enough since last tx? */
+ if ( jiffies - dev->trans_start < HZ/10 ) return -EAGAIN;
+
+ if ( lp->lan_type < 0 ) /* no LAN type detected yet? */
+ {
+ hp100_stop_interface( dev );
+ if ( ( lp->lan_type = hp100_sense_lan( dev ) ) < 0 )
+ {
+ printk( "%s: no connection found - check wire\n", dev->name );
+ hp100_start_interface( dev ); /* 10Mb/s RX pkts maybe handled */
+ return -EIO;
+ }
+ if ( lp->lan_type == HP100_LAN_100 )
+ lp->hub_status = hp100_login_to_vg_hub( dev, FALSE ); /* relogin */
+ hp100_start_interface( dev );
+ }
+
+ if ( lp->lan_type == HP100_LAN_100 && lp->hub_status < 0 )
+ /* we have a 100Mb/s adapter but it isn't connected to hub */
+ {
+ printk( "%s: login to 100Mb/s hub retry\n", dev->name );
+ hp100_stop_interface( dev );
+ lp->hub_status = hp100_login_to_vg_hub( dev, FALSE );
+ hp100_start_interface( dev );
+ }
+ else
+ {
+ hp100_ints_off();
+ i = hp100_sense_lan( dev );
+ hp100_page( PERFORMANCE );
+ hp100_ints_on();
+ if ( i == HP100_LAN_ERR )
+ printk( "%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( "%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, FALSE );
+ hp100_start_interface( dev );
+ }
+ else
+ {
+ printk( "%s: interface reset\n", dev->name );
+ hp100_stop_interface( dev );
+ hp100_start_interface( dev );
+ }
+ }
+
+ dev->trans_start = jiffies;
+ return -EAGAIN;
+ }
+
+ /*
+ * we have to turn int's off before modifying this, otherwise
+ * a tx_pdl_cleanup could occur at the same time
+ */
+ cli();
+ ringptr=lp->txrtail;
+ lp->txrtail=ringptr->next;
+
+ /* Check whether packet has minimal packet size */
+ ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
+ i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
+
+ ringptr->skb=skb;
+ ringptr->pdl[0]=((1<<16) | i); /* PDH: 1 Fragment & length */
+ ringptr->pdl[1]=(u32)virt_to_bus(skb->data); /* 1st Frag: Adr. of data */
+ if(lp->chip==HP100_CHIPID_SHASTA)
+ {
+ /* TODO:Could someone who has the EISA card please check if this works? */
+ ringptr->pdl[2]=i;
+ }
+ else /* Lassen */
+ {
+ /* In the PDL, don't use the padded size but the real packet size: */
+ ringptr->pdl[2]=skb->len; /* 1st Frag: Length of frag */
+ }
+
+ /* Hand this PDL to the card. */
+ hp100_outl( ringptr->pdl_paddr, TX_PDA_L ); /* Low Prio. Queue */
+
+ lp->txrcommit++;
+ sti();
+
+ /* Update statistics */
+ lp->stats.tx_packets++;
+#ifdef LINUX_2_1
+ lp->stats.tx_bytes += skb->len;
+#endif
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+
+/* clean_txring checks if packets have been sent by the card by reading
+ * the TX_PDL register from the performance page and comparing it to the
+ * number of commited packets. It then frees the skb's of the packets that
+ * obviously have been sent to the network.
+ *
+ * Needs the PERFORMANCE page selected.
+ */
+static void hp100_clean_txring( struct device *dev )
+{
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ int ioaddr = dev->base_addr;
+ int donecount;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4211, TRACE );
+ printk("hp100: clean txring\n");
+#endif
+
+ /* How many PDLs have been transmitted? */
+ donecount=(lp->txrcommit)-hp100_inb(TX_PDL);
+
+#ifdef HP100_DEBUG
+ if(donecount>MAX_TX_PDL)
+ printk("hp100: Warning: More PDLs transmitted than commited to card???\n");
+#endif
+
+ for( ; 0!=donecount; donecount-- )
+ {
+#ifdef HP100_DEBUG_BM
+ printk("hp100: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n",
+ (u_int) lp->txrhead->skb->data,
+ lp->txrcommit,
+ hp100_inb(TX_PDL),
+ donecount);
+#endif
+ dev_kfree_skb( lp->txrhead->skb, FREE_WRITE );
+ lp->txrhead->skb=(void *)NULL;
+ lp->txrhead=lp->txrhead->next;
+ lp->txrcommit--;
+ }
+}
+
+
+/* tx function for slave modes */
static int hp100_start_xmit( struct sk_buff *skb, struct device *dev )
{
int i, ok_flag;
- int ioaddr = dev -> base_addr;
+ int ioaddr = dev->base_addr;
u_short val;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4212, TRACE );
+ printk("hp100: start_xmit\n");
+#endif
- if ( lp -> lan_type < 0 )
+ if ( lp->lan_type < 0 ) /* no LAN type detected yet? */
{
hp100_stop_interface( dev );
- if ( ( lp -> lan_type = hp100_sense_lan( dev ) ) < 0 )
+ if ( ( lp->lan_type = hp100_sense_lan( dev ) ) < 0 )
{
- printk( "%s: no connection found - check wire\n", dev -> name );
- hp100_start_interface( dev ); /* 10Mb/s RX packets maybe handled */
+ printk( "%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 );
+ if ( lp->lan_type == HP100_LAN_100 )
+ lp->hub_status = hp100_login_to_vg_hub( dev, FALSE ); /* relogin */
hp100_start_interface( dev );
}
- if ( ( i = ( hp100_inl( TX_MEM_FREE ) & ~0x7fffffff ) ) < skb -> len + 16 )
+ /* 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_start_xmit: rx free mem = 0x%x\n", i );
+ printk( "hp100_start_xmit: tx free mem = 0x%x\n", i );
+#endif
+ /* not waited long enough since last failed tx try? */
+ if ( jiffies - dev->trans_start < HZ/2 )
+ {
+#ifdef HP100_DEBUG
+ printk("hp100: trans_start timing problem\n");
#endif
- if ( jiffies - dev -> trans_start < 2 * HZ ) return -EAGAIN;
- if ( lp -> lan_type == HP100_LAN_100 && lp -> hub_status < 0 )
- /* 100Mb/s adapter isn't connected to hub */
+ return -EAGAIN;
+ }
+ if ( lp->lan_type == HP100_LAN_100 && lp->hub_status < 0 )
+ /* we have a 100Mb/s adapter but it isn't connected to hub */
{
- printk( "%s: login to 100Mb/s hub retry\n", dev -> name );
+ printk( "%s: login to 100Mb/s hub retry\n", dev->name );
hp100_stop_interface( dev );
- lp -> hub_status = hp100_login_to_vg_hub( dev );
+ lp->hub_status = hp100_login_to_vg_hub( dev, FALSE );
hp100_start_interface( dev );
}
- else
+ else
{
hp100_ints_off();
i = hp100_sense_lan( dev );
hp100_page( PERFORMANCE );
hp100_ints_on();
if ( i == HP100_LAN_ERR )
- printk( "%s: link down detected\n", dev -> name );
- else
- if ( lp -> lan_type != i )
- {
- /* it's very heavy - all network setting must be changed!!! */
- printk( "%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 );
- hp100_start_interface( dev );
- }
- else
- {
- printk( "%s: interface reset\n", dev -> name );
- hp100_stop_interface( dev );
- hp100_start_interface( dev );
- }
+ printk( "%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( "%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, FALSE );
+ hp100_start_interface( dev );
+ }
+ else
+ {
+ printk( "%s: interface reset\n", dev->name );
+ hp100_stop_interface( dev );
+ hp100_start_interface( dev );
+ udelay(1000);
+ }
}
- dev -> trans_start = jiffies;
+ dev->trans_start = jiffies;
return -EAGAIN;
}
- for ( i = 0; i < 6000 && ( hp100_inw( OPTION_MSW ) & HP100_TX_CMD ); i++ )
+ for ( i=0; i<6000 && ( hp100_inb( OPTION_MSW ) & HP100_TX_CMD ); i++ )
{
#ifdef HP100_DEBUG_TX
printk( "hp100_start_xmit: busy\n" );
#endif
}
-
+
hp100_ints_off();
val = hp100_inw( IRQ_STATUS );
- hp100_outw( val & HP100_TX_COMPLETE, 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_start_xmit: irq_status = 0x%x, len = %d\n", val, (int)skb -> len );
+ printk("hp100_start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n",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 ); /* length to memory manager */
- hp100_outw( i, FRAGMENT_LEN );
- if ( lp -> mem_mapped )
- {
- if ( lp -> mem_ptr_virt )
- {
- memcpy( lp -> mem_ptr_virt, skb -> data, skb -> len );
- if ( !ok_flag )
- memset( lp -> mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb -> len );
- }
- else
- {
- memcpy_toio( lp -> mem_ptr_phys, skb -> data, skb -> len );
- if ( !ok_flag )
- memset_io( lp -> mem_ptr_phys, 0, HP100_MIN_PACKET_SIZE - skb -> len );
- }
+
+ ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
+ i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
+
+ hp100_outw( i, DATA32 ); /* tell card the total packet length */
+ hp100_outw( i, FRAGMENT_LEN ); /* and first/only fragment length */
+
+ if ( lp->mode==2 ) /* memory mapped */
+ {
+ if ( lp->mem_ptr_virt ) /* high pci memory was remapped */
+ {
+ /* Note: The J2585B needs alignment to 32bits here! */
+ memcpy( lp->mem_ptr_virt, skb->data, ( skb->len +3 ) & ~3 );
+ if ( !ok_flag )
+ memset( lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len );
+ }
+ else
+ {
+ memcpy_toio( lp->mem_ptr_phys, skb->data, skb->len );
+ if ( !ok_flag )
+ memset_io( lp->mem_ptr_phys, 0, HP100_MIN_PACKET_SIZE - skb->len );
+ }
}
- else
+ else /* programmed i/o */
{
- outsl( ioaddr + HP100_REG_DATA32, skb -> data, ( skb -> len + 3 ) >> 2 );
+ 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 );
+ for ( i = ( skb->len + 3 ) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4 )
+ hp100_outl( 0, DATA32 );
}
- hp100_outw( HP100_TX_CMD | HP100_SET_LB, OPTION_MSW ); /* send packet */
- lp -> stats.tx_packets++;
- dev -> trans_start = jiffies;
+
+ hp100_outb( HP100_TX_CMD | HP100_SET_LB, OPTION_MSW ); /* send packet */
+
+ lp->stats.tx_packets++;
+#ifdef LINUX_2_1
+ lp->stats.tx_bytes += skb->len;
+#endif
+ dev->trans_start=jiffies;
hp100_ints_on();
-
+
dev_kfree_skb( skb, FREE_WRITE );
-
+
#ifdef HP100_DEBUG_TX
printk( "hp100_start_xmit: end\n" );
#endif
-
+
return 0;
}
+
/*
- * receive - called from interrupt handler
+ * Receive Function (Non-Busmaster mode)
+ * Called when an "Receive Packet" interrupt occurs, i.e. the receive
+ * packet counter is non-zero.
+ * For non-busmaster, this function does the whole work of transfering
+ * the packet to the host memory and then up to higher layers via skb
+ * and netif_rx.
*/
static void hp100_rx( struct device *dev )
{
int packets, pkt_len;
- int ioaddr = dev -> base_addr;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
u_int header;
struct sk_buff *skb;
-#if 0
- if ( lp -> lan_type < 0 )
- {
- if ( ( lp -> lan_type = hp100_sense_lan( dev ) ) == HP100_LAN_100 )
- lp -> hub_status = hp100_login_to_vg_hub( dev );
- hp100_page( PERFORMANCE );
- }
+#ifdef DEBUG_B
+ hp100_outw( 0x4213, TRACE );
+ printk("hp100: rx\n");
#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 transfered of the card */
packets = hp100_inb( RX_PKT_CNT );
-#ifdef HP100_DEBUG
+#ifdef HP100_DEBUG_RX
if ( packets > 1 )
printk( "hp100_rx: waiting packets = %d\n", packets );
#endif
+
while ( packets-- > 0 )
{
- for ( pkt_len = 0; pkt_len < 6000 && ( hp100_inw( OPTION_MSW ) & HP100_ADV_NXT_PKT ); pkt_len++ )
+ /* 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_TX
+#ifdef HP100_DEBUG_RX
printk( "hp100_rx: busy, remaining packets = %d\n", packets );
-#endif
+#endif
}
- if ( lp -> mem_mapped )
+
+ /* First we get the header, which contains information about the */
+ /* actual length of the received packet. */
+ if( lp->mode==2 ) /* memory mapped mode */
{
- if ( lp -> mem_ptr_virt )
- header = *(__u32 *)lp -> mem_ptr_virt;
- else
- header = readl( lp -> mem_ptr_phys );
+ if ( lp->mem_ptr_virt ) /* if memory was remapped */
+ header = *(__u32 *)lp->mem_ptr_virt;
+ else
+ header = readl( lp->mem_ptr_phys );
}
- else
+ else /* programmed i/o */
header = hp100_inl( DATA32 );
+
pkt_len = header & HP100_PKT_LEN_MASK;
+
#ifdef HP100_DEBUG_RX
- printk( "hp100_rx: new packet - length = %d, errors = 0x%x, dest = 0x%x\n",
- header & HP100_PKT_LEN_MASK, ( header >> 16 ) & 0xfff8, ( header >> 16 ) & 7 );
-#endif
- /*
- * NOTE! This (and the skb_put() below) depends on the skb-functions
+ printk( "hp100_rx: new packet - length=%d, errors=0x%x, dest=0x%x\n",
+ header & HP100_PKT_LEN_MASK, (header>>16)&0xfff8,
+ (header>>16)&7);
+#endif
+
+ /* Now we allocate the skb and transfer the data into it. */
+ /* NOTE! This (and the skb_put() below) depends on the skb-functions
* allocating more than asked (notably, aligning the request up to
* the next 16-byte length).
*/
skb = dev_alloc_skb( pkt_len );
- if ( skb == NULL )
- {
+ if ( skb == NULL ) /* Not enough memory->drop packet */
+ {
#ifdef HP100_DEBUG
- printk( "hp100_rx: couldn't allocate a sk_buff of size %d\n", pkt_len );
+ printk( "hp100_rx: couldn't allocate a sk_buff of size %d\n", pkt_len );
#endif
- lp -> stats.rx_dropped++;
- }
- else
- {
- u_char *ptr;
-
- skb -> dev = dev;
- ptr = (u_char *)skb_put( skb, pkt_len );
- if ( lp -> mem_mapped )
+ lp->stats.rx_dropped++;
+ }
+ else /* skb successfully allocated */
+ {
+ u_char *ptr;
+
+ skb->dev = dev;
+
+ /* ptr to start of the sk_buff data area */
+ ptr = (u_char *)skb_put( skb, pkt_len );
+
+ /* Now transfer the data from the card into that area */
+ if ( lp->mode==2 )
{
- if ( lp -> mem_ptr_virt )
- memcpy( ptr, lp -> mem_ptr_virt, ( pkt_len + 3 ) & ~3 );
- else
- memcpy_fromio( ptr, lp -> mem_ptr_phys, ( pkt_len + 3 ) & ~3 );
+ if ( lp->mem_ptr_virt )
+ memcpy( ptr, lp->mem_ptr_virt, ( pkt_len + 3 ) & ~3 );
+ /* Note alignment to 32bit transfers */
+ else
+ memcpy_fromio( ptr, lp->mem_ptr_phys, ( pkt_len + 3 ) & ~3 );
}
- else
- insl( ioaddr + HP100_REG_DATA32, ptr, ( pkt_len + 3 ) >> 2 );
- skb -> protocol = eth_type_trans( skb, dev );
- netif_rx( skb );
- lp -> stats.rx_packets++;
-#ifdef HP100_DEBUG_RX
- printk( "rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
- ptr[ 0 ], ptr[ 1 ], ptr[ 2 ], ptr[ 3 ], ptr[ 4 ], ptr[ 5 ],
- ptr[ 6 ], ptr[ 7 ], ptr[ 8 ], ptr[ 9 ], ptr[ 10 ], ptr[ 11 ] );
+ else /* io mapped */
+ insl( ioaddr + HP100_REG_DATA32, ptr, ( pkt_len + 3 ) >> 2 );
+
+ skb->protocol = eth_type_trans( skb, dev );
+
+ netif_rx( skb );
+ lp->stats.rx_packets++;
+#ifdef LINUX_2_1
+ lp->stats.rx_bytes += skb->len;
#endif
- }
- hp100_outw( HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW );
+
+#ifdef HP100_DEBUG_RX
+ printk( "rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ 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
+ }
+
+ /* Indicate the card that we have got the packet */
+ hp100_outb( HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW );
+
switch ( header & 0x00070000 ) {
- case (HP100_MULTI_ADDR_HASH<<16):
- case (HP100_MULTI_ADDR_NO_HASH<<16):
- lp -> stats.multicast++; break;
+ case (HP100_MULTI_ADDR_HASH<<16):
+ case (HP100_MULTI_ADDR_NO_HASH<<16):
+ lp->stats.multicast++; break;
}
- }
+ } /* end of while(there are packets) loop */
#ifdef HP100_DEBUG_RX
- printk( "hp100_rx: end\n" );
+ printk( "hp100_rx: end\n" );
+#endif
+}
+
+
+/*
+ * Receive Function for Busmaster Mode
+ */
+static void hp100_rx_bm( struct device *dev )
+{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ hp100_ring_t *ptr;
+ u_int header;
+ int pkt_len;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4214, TRACE );
+ printk("hp100: rx_bm\n");
+#endif
+
+#ifdef HP100_DEBUG
+ if(0==lp->rxrcommit)
+ {
+ printk("hp100: rx_bm called although no PDLs were committed to adapter?\n");
+ 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: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n", hp100_inw(RX_PKT_CNT)&0x00ff, lp->rxrcommit);
+ return;
+ }
+#endif
+
+ while( (lp->rxrcommit > hp100_inb(RX_PDL)) )
+ {
+ /*
+ * The packet was received into the pdl pointed to by lp->rxrhead (
+ * the oldest pdl in the ring
+ */
+
+ /* First we get the header, which contains information about the */
+ /* actual length of the received packet. */
+
+ ptr=lp->rxrhead;
+
+ header = *(ptr->pdl-1);
+ pkt_len = (header & HP100_PKT_LEN_MASK);
+
+#ifdef HP100_DEBUG_BM
+ printk( "hp100: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n",
+ (u_int) (ptr->pdl-1),(u_int) header,
+ pkt_len,
+ (header>>16)&0xfff8,
+ (header>>16)&7);
+ printk( "hp100: 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",
+ 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: rx_bm: skb null\n");
+ /* can happen if we only allocated room for the pdh due to memory shortage. */
+ lp->stats.rx_dropped++;
+ }
+ else
+ {
+ skb_trim( ptr->skb, pkt_len ); /* Shorten it */
+ ptr->skb->protocol = eth_type_trans( ptr->skb, dev );
+
+ netif_rx( ptr->skb ); /* Up and away... */
+
+ lp->stats.rx_packets++;
+#ifdef LINUX_2_1
+ lp->stats.rx_bytes += ptr->skb->len;
+#endif
+ }
+
+ switch ( header & 0x00070000 ) {
+ case (HP100_MULTI_ADDR_HASH<<16):
+ case (HP100_MULTI_ADDR_NO_HASH<<16):
+ lp->stats.multicast++; break;
+ }
+ }
+ else
+ {
+#ifdef HP100_DEBUG
+ printk("hp100: rx_bm: Received bad packet (length=%d)\n",pkt_len);
#endif
+ if(ptr->skb!=NULL)
+ dev_kfree_skb( ptr->skb, FREE_READ );
+ lp->stats.rx_errors++;
+ }
+
+ lp->rxrhead=lp->rxrhead->next;
+
+ /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */
+ if (0 == hp100_build_rx_pdl( lp->rxrtail, dev ))
+ {
+ /* No space for skb, header can still be received. */
+#ifdef HP100_DEBUG
+ printk("hp100: rx_bm: No space for new PDL.\n");
+#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 device *dev )
+static hp100_stats_t *hp100_get_stats( struct device *dev )
{
- int ioaddr = dev -> base_addr;
+ int ioaddr = dev->base_addr;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4215, TRACE );
+#endif
hp100_ints_off();
hp100_update_stats( dev );
hp100_ints_on();
- return &((struct hp100_private *)dev -> priv) -> stats;
+ return &((struct hp100_private *)dev->priv)->stats;
}
static void hp100_update_stats( struct device *dev )
{
- int ioaddr = dev -> base_addr;
+ int ioaddr = dev->base_addr;
u_short val;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4216, TRACE );
+ printk("hp100: update-stats\n");
+#endif
- hp100_page( MAC_CTRL ); /* get all statistics bytes */
+ /* Note: Statistics counters clear when read. */
+ hp100_page( MAC_CTRL );
val = hp100_inw( DROPPED ) & 0x0fff;
- lp -> stats.rx_errors += val;
- lp -> stats.rx_over_errors += val;
+ lp->stats.rx_errors += val;
+ lp->stats.rx_over_errors += val;
val = hp100_inb( CRC );
- lp -> stats.rx_errors += val;
- lp -> stats.rx_crc_errors += val;
+ lp->stats.rx_errors += val;
+ lp->stats.rx_crc_errors += val;
val = hp100_inb( ABORT );
- lp -> stats.tx_errors += val;
- lp -> stats.tx_aborted_errors += val;
+ lp->stats.tx_errors += val;
+ lp->stats.tx_aborted_errors += val;
hp100_page( PERFORMANCE );
}
static void hp100_clear_stats( int ioaddr )
{
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4217, TRACE );
+ printk("hp100: clear_stats\n");
+#endif
+
cli();
- hp100_page( MAC_CTRL ); /* get all statistics bytes */
+ hp100_page( MAC_CTRL ); /* get all statistics bytes */
hp100_inw( DROPPED );
hp100_inb( CRC );
hp100_inb( ABORT );
@@ -831,54 +2031,73 @@
sti();
}
+
/*
* multicast setup
*/
/*
* Set or clear the multicast filter for this adapter.
+ * TODO: Currently when in multicast mode, card accepts all multicast packets
+ * for all MC addresses. Should better use the list on the card.
*/
-
+
static void hp100_set_multicast_list( struct device *dev)
{
- int ioaddr = dev -> base_addr;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
-#ifdef HP100_DEBUG_MULTI
- printk( "hp100_set_multicast_list: num_addrs = %d\n", dev->mc_count);
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4218, TRACE );
+ printk("hp100: set_mc_list\n");
#endif
+
cli();
hp100_ints_off();
hp100_page( MAC_CTRL );
- hp100_andb( ~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1 ); /* stop rx/tx */
+ hp100_andb( ~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1 ); /* stop rx/tx */
- if ( dev->flags&IFF_PROMISC)
+ if ( dev->flags & IFF_PROMISC )
{
- lp -> mac2_mode = HP100_MAC2MODE6; /* promiscuous mode, all good */
- lp -> mac1_mode = HP100_MAC1MODE6; /* packets on the net */
+ lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */
+ lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */
}
- else
- if ( dev->mc_count || dev->flags&IFF_ALLMULTI )
+ else if ( dev->mc_count || (dev->flags&IFF_ALLMULTI) )
{
- lp -> mac2_mode = HP100_MAC2MODE5; /* multicast mode, packets for me */
- lp -> mac1_mode = HP100_MAC1MODE5; /* broadcasts and all multicasts */
+ lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */
+ lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */
}
- else
+ else
{
- lp -> mac2_mode = HP100_MAC2MODE3; /* normal mode, packets for me */
- lp -> mac1_mode = HP100_MAC1MODE3; /* and broadcasts */
+ lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */
+ lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */
}
- hp100_outb( lp -> mac2_mode, MAC_CFG_2 );
- hp100_andb( HP100_MAC1MODEMASK, MAC_CFG_1 );
- hp100_orb( lp -> mac1_mode |
- HP100_RX_EN | HP100_RX_IDLE | /* enable rx */
- HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1 ); /* enable tx */
+ if ( ( (hp100_inb(MAC_CFG_1) & 0x0f)!=lp->mac1_mode ) ||
+ ( hp100_inb(MAC_CFG_2)!=lp->mac2_mode ) ) {
+ 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 */
+
+ if(lp->lan_type==HP100_LAN_100)
+ {
+#ifdef HP100_DEBUG
+ printk("hp100: 100VG MAC settings have changed - relogin.\n");
+#endif
+ lp->hub_status=hp100_login_to_vg_hub( dev, TRUE ); /* force a relogin to the hub */
+ }
+ }
+
+ hp100_page( MAC_CTRL );
+ hp100_orb( HP100_RX_EN | HP100_RX_IDLE | /* enable rx */
+ HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1 ); /* enable tx */
+
hp100_page( PERFORMANCE );
hp100_ints_on();
sti();
}
+
/*
* hardware interrupt handling
*/
@@ -886,249 +2105,747 @@
static void hp100_interrupt( int irq, void *dev_id, struct pt_regs *regs )
{
struct device *dev = (struct device *)irq2dev_map[ irq ];
- struct hp100_private *lp;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
int ioaddr;
- u_short val;
+ u_int val;
if ( dev == NULL ) return;
- ioaddr = dev -> base_addr;
- if ( dev -> interrupt )
- printk( "%s: re-entering the interrupt handler\n", dev -> name );
+ ioaddr = dev->base_addr;
+
+ if ( dev->interrupt )
+ printk( "%s: re-entering the interrupt handler\n", dev->name );
hp100_ints_off();
- dev -> interrupt = 1;
- hp100_page( PERFORMANCE );
+ dev->interrupt = 1; /* mark that we are inside the handler */
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4219, TRACE );
+#endif
+
+ /* hp100_page( PERFORMANCE ); */
val = hp100_inw( IRQ_STATUS );
#ifdef HP100_DEBUG_IRQ
- printk( "hp100_interrupt: irq_status = 0x%x\n", val );
+ printk( "hp100: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n",
+ 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 & HP100_RX_PACKET )
- {
- hp100_rx( dev );
- hp100_outw( HP100_RX_PACKET, IRQ_STATUS );
- }
- if ( val & (HP100_TX_SPACE_AVAIL | HP100_TX_COMPLETE) )
+
+ if(val==0) /* might be a shared interrupt */
{
- hp100_outw( val & (HP100_TX_SPACE_AVAIL | HP100_TX_COMPLETE), IRQ_STATUS );
+ dev->interrupt=0;
+ hp100_ints_on();
+ return;
}
+ /* We're only interested in those interrupts we really enabled. */
+ /* val &= hp100_inw( IRQ_MASK ); */
+
+ /*
+ * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL
+ * is considered executed whenever the RX_PDL data structure is no longer
+ * needed.
+ */
+ if ( val & HP100_RX_PDL_FILL_COMPL )
+ {
+ if(lp->mode==1)
+ hp100_rx_bm( dev );
+ else
+ printk("hp100: rx_pdl_fill_compl interrupt although not busmaster?\n");
+ }
+
+ /*
+ * The RX_PACKET interrupt is set, when the receive packet counter is
+ * non zero. We use this interrupt for receiving in slave mode. In
+ * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill
+ * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then
+ * we somehow have missed a rx_pdl_fill_compl interrupt.
+ */
+
+ if ( val & HP100_RX_PACKET ) /* Receive Packet Counter is non zero */
+ {
+ if(lp->mode!=1) /* non busmaster */
+ hp100_rx( dev );
+ else if ( !(val & HP100_RX_PDL_FILL_COMPL ))
+ {
+ /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */
+ hp100_rx_bm( dev );
+ }
+ }
+
+ /*
+ * Ack. that we have noticed the interrupt and thereby allow next one.
+ * Note that this is now done after the slave rx function, since first
+ * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt
+ * on the J2573.
+ */
+ hp100_outw( val, IRQ_STATUS );
+
+ /*
+ * RX_ERROR is set when a packet is dropped due to no memory resources on
+ * the card or when a RCV_ERR occurs.
+ * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists
+ * only in the 802.3 MAC and happens when 16 collisions occur during a TX
+ */
if ( val & ( HP100_TX_ERROR | HP100_RX_ERROR ) )
{
- lp = (struct hp100_private *)dev -> priv;
- hp100_update_stats( dev );
- hp100_outw( val & (HP100_TX_ERROR | HP100_RX_ERROR), IRQ_STATUS );
- }
#ifdef HP100_DEBUG_IRQ
- printk( "hp100_interrupt: end\n" );
+ printk("hp100: TX/RX Error IRQ\n");
#endif
- dev -> interrupt = 0;
+ 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 */
+ {
+ printk("hp100: Misc. Error Interrupt - Check cabling.\n");
+ if(lp->mode==1)
+ {
+ hp100_clean_txring( dev );
+ hp100_rxfill( dev );
+ }
+ }
+
+ dev->interrupt = 0;
hp100_ints_on();
}
+
/*
* some misc functions
*/
static void hp100_start_interface( struct device *dev )
{
- int ioaddr = dev -> base_addr;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4220, TRACE );
+ printk("hp100: hp100_start_interface %s\n",dev->name);
+#endif
cli();
- hp100_unreset_card();
- hp100_page( MAC_CTRL );
- hp100_outb( lp -> mac2_mode, MAC_CFG_2 );
- hp100_andb( HP100_MAC1MODEMASK, MAC_CFG_1 );
- hp100_orb( lp -> mac1_mode |
- HP100_RX_EN | HP100_RX_IDLE |
- HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1 );
+
+ /* 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( HP100_INT_EN | HP100_SET_LB, OPTION_LSW );
- hp100_outw( HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW );
- if ( lp -> mem_mapped )
+ 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 */
+ /* Enable memory mapping. Note: Don't do this when busmaster. */
hp100_outw( HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW );
}
- sti();
+
+ 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 );
+ }
+
+ /* Enable MAC Tx and RX, set MAC modes, ... */
+ /* Note: This function also turns on the interrupts. */
+ hp100_set_multicast_list( dev );
}
+
static void hp100_stop_interface( struct device *dev )
{
- int ioaddr = dev -> base_addr;
- u_short val;
-
- 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( HW_MAP );
- hp100_andb( HP100_BM_SLAVE, BM );
- hp100_page( MAC_CTRL );
- hp100_andb( ~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1 );
- if ( !(val & HP100_HW_RST) ) return;
- for ( val = 0; val < 6000; val++ )
- if ( ( hp100_inb( MAC_CFG_1 ) & (HP100_TX_IDLE | HP100_RX_IDLE) ) ==
- (HP100_TX_IDLE | HP100_RX_IDLE) )
- return;
- printk( "%s: hp100_stop_interface - timeout\n", dev -> name );
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ int ioaddr = dev->base_addr;
+ u_int val;
+
+#ifdef HP100_DEBUG_B
+ printk("hp100: hp100_stop_interface %s\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( "%s: hp100_stop_interface - timeout\n", dev->name );
+ hp100_page(PERFORMANCE);
+ }
}
+
static void hp100_load_eeprom( struct device *dev )
{
int i;
- int ioaddr = dev -> base_addr;
+ int 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 < 6000; i++ )
- if ( !( hp100_inw( OPTION_MSW ) & HP100_EE_LOAD ) ) return;
- printk( "%s: hp100_load_eeprom - timeout\n", dev -> name );
+ for ( i = 0; i < 10000; i++ )
+ if ( !( hp100_inb( OPTION_MSW ) & HP100_EE_LOAD ) ) return;
+ printk( "%s: hp100_load_eeprom - timeout\n", dev->name );
}
-/* return values: LAN_10, LAN_100 or LAN_ERR (not connected or hub is down)... */
-
+
+/* 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 device *dev )
{
- int i;
- int ioaddr = dev -> base_addr;
+ int ioaddr = dev->base_addr;
u_short val_VG, val_10;
- struct hp100_private *lp = (struct hp100_private *)dev -> priv;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4223, TRACE );
+#endif
hp100_page( MAC_CTRL );
- hp100_orw( HP100_VG_RESET, LAN_CFG_VG );
- val_10 = hp100_inw( LAN_CFG_10 );
- val_VG = hp100_inw( LAN_CFG_VG );
-#ifdef HP100_DEBUG_SENSE
+ /* Enable Auto Selection */
+ /* hp100_orb( HP100_VG_RESET|HP100_LINK_CMD|HP100_VG_SEL, VG_LAN_CFG_1 ); */
+ /* hp100_orb( HP100_DOT3_MAC,10_LAN_CFG_2); */
+ /* hp100_orb( HP100_AUTO_MODE,MAC_CFG_3); */
+ /* Now we have to wait a while... */
+ /* for(i=0; i<5000; i++) */
+ /* { */
+ val_10 = hp100_inb( 10_LAN_CFG_1 );
+ val_VG = hp100_inb( VG_LAN_CFG_1 );
+ /* } */
+#ifdef HP100_DEBUG
printk( "hp100_sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", val_VG, val_10 );
#endif
if ( val_10 & HP100_LINK_BEAT_ST ) return HP100_LAN_10;
- if ( lp -> id -> id == 0x02019F022 ) /* HP J27248B doesn't have 100Mb/s interface */
- return HP100_LAN_ERR;
- for ( i = 0; i < 2500; i++ )
- {
- val_VG = hp100_inw( LAN_CFG_VG );
- if ( val_VG & HP100_LINK_CABLE_ST ) return HP100_LAN_100;
- }
+ if ( (lp->id->id == 0x02019F022) ||
+ (lp->id->id == 0x01042103c) ||
+ (lp->id->id == 0x01040103c) )
+ {
+ hp100_page(PERFORMANCE);
+ return HP100_LAN_ERR; /* Those cards don't have a 100 Mbit connector */
+ }
+ /* for ( i = 0; i < 2500; i++ ) */
+ /* { */
+ val_VG = hp100_inb( VG_LAN_CFG_1 );
+ hp100_page(PERFORMANCE);
+
+ 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 device *dev )
{
- int ioaddr = dev -> base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ int ioaddr = dev->base_addr;
unsigned long time;
- int i;
+ long savelan, newlan;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4224, TRACE );
+ printk("hp100: down_vg_link\n");
+#endif
hp100_page( MAC_CTRL );
- for ( i = 2500; i > 0; i-- )
- if ( hp100_inw( LAN_CFG_VG ) & HP100_LINK_CABLE_ST ) break;
- if ( i <= 0 ) /* not signal - not logout */
+ time=jiffies+(HZ/4);
+ do{
+ if ( hp100_inb( VG_LAN_CFG_1 ) & HP100_LINK_CABLE_ST ) break;
+ } while (time>jiffies);
+
+ if ( jiffies >= time ) /* no signal->no logout */
return 0;
- hp100_andw( ~HP100_LINK_CMD, LAN_CFG_VG );
- time = jiffies + 10*HZ/100;
- while ( time > jiffies )
- if ( !( hp100_inw( LAN_CFG_VG ) & ( HP100_LINK_UP_ST |
- HP100_LINK_CABLE_ST |
- HP100_LINK_GOOD_ST ) ) )
- 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;
+ } while(time>jiffies);
+
#ifdef HP100_DEBUG
- printk( "hp100_down_vg_link: timeout\n" );
+ if (jiffies>=time)
+ printk("hp100_down_vg_link: Link does not go down?\n");
#endif
- return -EIO;
-}
-static int hp100_login_to_vg_hub( struct device *dev )
-{
- int i;
- int ioaddr = dev -> base_addr;
- u_short val;
- unsigned long time;
+ /* 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;
+ } while(time>jiffies);
- hp100_page( MAC_CTRL );
- hp100_orw( HP100_VG_RESET, LAN_CFG_VG );
- time = jiffies + ( HZ / 2 );
+ 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_inw( LAN_CFG_VG ) & HP100_LINK_CABLE_ST ) break;
- } while ( time > jiffies );
- if ( time <= jiffies )
+ if ( (hp100_inb( VG_LAN_CFG_1 )&HP100_LINK_CABLE_ST) == 0) break;
+ } while (time>jiffies);
+
+ if(time<=jiffies)
{
#ifdef HP100_DEBUG
- printk( "hp100_login_to_vg_hub: timeout for link\n" );
+ printk( "hp100_down_vg_link: timeout\n" );
#endif
return -EIO;
}
+
+ time=jiffies+(2*HZ); /* This seems to take a while.... */
+ do {} while (time>jiffies);
+
+ return 0;
+}
- if ( hp100_down_vg_link( dev ) < 0 ) /* if fail, try reset VG link */
- {
- hp100_andw( ~HP100_VG_RESET, LAN_CFG_VG );
- hp100_orw( HP100_VG_RESET, LAN_CFG_VG );
- }
- /* bring up link */
- hp100_orw( HP100_LOAD_ADDR | HP100_LINK_CMD, LAN_CFG_VG );
- for ( i = 2500; i > 0; i-- )
- if ( hp100_inw( LAN_CFG_VG ) & HP100_LINK_CABLE_ST ) break;
- if ( i <= 0 )
+
+static int hp100_login_to_vg_hub( struct device *dev, u_short force_relogin )
+{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ u_short val=0;
+ unsigned long time;
+ int startst;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4225, TRACE );
+ printk("hp100: login_to_vg_hub\n");
+#endif
+
+ /* Initiate a login sequence iff VG MAC is enabled and either Load Address
+ * bit is zero or the force relogin flag is set (e.g. due to MAC address or
+ * promiscuous mode change)
+ */
+ hp100_page( MAC_CTRL );
+ startst=hp100_inb( VG_LAN_CFG_1 );
+ if((force_relogin==TRUE)||(hp100_inb( MAC_CFG_4 )&HP100_MAC_SEL_ST))
{
-#ifdef HP100_DEBUG
- printk( "hp100_login_to_vg_hub: timeout for link (bring up)\n" );
+#ifdef HP100_DEBUG_TRAINING
+ printk("hp100: Start training\n");
#endif
- goto down_link;
- }
- time = jiffies + ( HZ / 2 );
- do {
- val = hp100_inw( LAN_CFG_VG );
- if ( ( val & ( HP100_LINK_UP_ST | HP100_LINK_GOOD_ST ) ) ==
- ( HP100_LINK_UP_ST | HP100_LINK_GOOD_ST ) )
- return 0; /* success */
- } while ( time > jiffies );
- if ( val & HP100_LINK_GOOD_ST )
- printk( "%s: 100Mb cable training failed, check cable.\n", dev -> name );
- else
- printk( "%s: 100Mb node not accepted by hub, check frame type or security.\n", dev -> name );
+ /* 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: Bring down the link\n");
+#endif
+
+ /* Wait for link to drop */
+ time = jiffies + (HZ/10);
+ do {
+ if (~(hp100_inb( VG_LAN_CFG_1 )& HP100_LINK_UP_ST) ) break;
+ } while (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;
+ } while ( jiffies < time );
+
+ if ( jiffies >= time )
+ {
+#ifdef HP100_DEBUG_TRAINING
+ printk( "hp100: Link cable status not ok? Training aborted.\n" );
+#endif
+ }
+ else
+ {
+#ifdef HP100_DEBUG_TRAINING
+ printk( "hp100: HUB tones detected. Trying to train.\n");
+#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: Passed training.\n");
+#endif
+ break;
+ }
+ } while ( time > jiffies );
+ }
+
+ /* If LINK_UP_ST is set, then we are logged into the hub. */
+ if ( (jiffies<=time) && (val & HP100_LINK_UP_ST) )
+ {
+#ifdef HP100_DEBUG_TRAINING
+ printk( "hp100: Successfully logged into the HUB.\n");
+ if(lp->chip==HP100_CHIPID_LASSEN)
+ {
+ val = hp100_inw(TRAIN_ALLOW);
+ printk( "hp100: Card supports 100VG MAC Version \"%s\" ",
+ (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: Frame format is %s.\n",(val&HP100_MALLOW_FRAMEFMT)?"802.5":"802.3");
+ }
+#endif
+ }
+ else
+ {
+ /* If LINK_UP_ST is not set, login was not successful */
+ printk("hp100/%s: Problem logging into the HUB.\n",dev->name);
+ if(lp->chip==HP100_CHIPID_LASSEN)
+ {
+ /* Check allowed Register to find out why there is a problem. */
+ val = hp100_inw( TRAIN_ALLOW ); /* wont work on non-ETR card */
+#ifdef HP100_DEBUG_TRAINING
+ printk("hp100: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", hp100_inw(TRAIN_REQUEST), val);
+#endif
+ if ( val & HP100_MALLOW_ACCDENIED )
+ printk("hp100: HUB access denied.\n");
+ if ( val & HP100_MALLOW_CONFIGURE )
+ printk("hp100: MAC Configuration is incompatible with the Network.\n");
+ if ( val & HP100_MALLOW_DUPADDR )
+ printk("hp100: Duplicate MAC Address on the Network.\n");
+ }
+ }
+
+ /* 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);
-down_link:
- hp100_down_vg_link( dev );
- hp100_page( MAC_CTRL );
- hp100_andw( ~( HP100_LOAD_ADDR | HP100_PROM_MODE ), LAN_CFG_VG );
- hp100_orw( HP100_LINK_CMD, LAN_CFG_VG );
+ /* 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: Training failed.\n");
+ hp100_down_vg_link( dev );
+ return -EIO;
+ }
+ }
+ /* no forced relogin & already link there->no training. */
return -EIO;
}
+
+static void hp100_cascade_reset( struct device *dev, u_short enable )
+{
+ int ioaddr = dev->base_addr;
+ struct hp100_private *lp = (struct hp100_private *)dev->priv;
+ int i;
+
+#ifdef HP100_DEBUG_B
+ hp100_outw( 0x4226, TRACE );
+ printk("hp100: cascade_reset\n");
+#endif
+
+ if (enable==TRUE)
+ {
+ hp100_outw( HP100_HW_RST | HP100_RESET_LB, OPTION_LSW );
+ if(lp->chip==HP100_CHIPID_LASSEN)
+ {
+ /* Lassen requires a PCI transmit fifo reset */
+ hp100_page( HW_MAP );
+ hp100_andb( ~HP100_PCI_RESET, PCICTRL2 );
+ hp100_orb( HP100_PCI_RESET, PCICTRL2 );
+ /* Wait for min. 300 ns */
+ /* we cant use jiffies here, because it may be */
+ /* that we have disabled the timer... */
+ for (i=0; i<0xffff; i++);
+ hp100_andb( ~HP100_PCI_RESET, PCICTRL2 );
+ hp100_page( PERFORMANCE );
+ }
+ }
+ else
+ { /* bring out of reset */
+ hp100_outw(HP100_HW_RST|HP100_SET_LB, OPTION_LSW);
+ for (i=0; i<0xffff; i++ );
+ hp100_page(PERFORMANCE);
+ }
+}
+
+#ifdef HP100_DEBUG
+void hp100_RegisterDump( struct device *dev )
+{
+ int ioaddr=dev->base_addr;
+ int Page;
+ int Register;
+
+ /* Dump common registers */
+ printk("hp100: Cascade Register Dump\n");
+ 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
+
+
+
/*
* module section
*/
-
+
#ifdef MODULE
-static int hp100_port = -1;
-MODULE_PARM(hp100_port, "i");
+/* Parameters set by insmod */
+int hp100_port[5] = { 0, -1, -1, -1, -1 };
+#ifdef LINUX_2_1
+MODULE_PARM(hp100_port, "1-5i");
+#endif
-static char devicename[9] = { 0, };
-static struct device dev_hp100 = {
- devicename, /* device name is inserted by linux/drivers/net/net_init.c */
- 0, 0, 0, 0,
- 0, 0,
- 0, 0, 0, NULL, hp100_probe
-};
+#ifdef LINUX_2_1
+char hp100_name[5][IFNAMSIZ] = { "", "", "", "", "" };
+MODULE_PARM(hp100_name, "1-5c" __MODULE_STRING(IFNAMSIZ));
+#else
+static char devname[5][IFNAMSIZ] = { "", "", "", "", "" };
+static char *hp100_name[5] = { devname[0], devname[1],
+ devname[2], devname[3],
+ devname[4] };
+#endif
+
+/* List of devices */
+static struct device *hp100_devlist[5] = { NULL, NULL, NULL, NULL, NULL };
+
+/*
+ * Note: if you have more than five 100vg cards in your pc, feel free to
+ * increase this value
+ */
+
+/*
+ * Note: to register three eisa or pci devices, use:
+ * option hp100 hp100_port=0,0,0
+ * to register one card at io 0x280 as eth239, use:
+ * option hp100 hp100_port=0x280 hp100_name=eth239
+ */
int init_module( void )
{
- if (hp100_port == 0 && !EISA_bus)
+ int i;
+ int ret = 0;
+
+ if (hp100_port == 0 && !EISA_bus && !pcibios_present())
printk("HP100: You should not use auto-probing with insmod!\n");
- if ( hp100_port > 0 )
- dev_hp100.base_addr = hp100_port;
- if ( register_netdev( &dev_hp100 ) != 0 )
- return -EIO;
- return 0;
+
+ /* Loop on all possible base addresses */
+ i = -1;
+ while((hp100_port[++i] != -1) && (i < 5))
+ {
+ /* Create device and set basics args */
+ hp100_devlist[i] = kmalloc(sizeof(struct device), GFP_KERNEL);
+ memset(hp100_devlist[i], 0x00, sizeof(struct device));
+ hp100_devlist[i]->name = hp100_name[i];
+ hp100_devlist[i]->base_addr = hp100_port[i];
+ hp100_devlist[i]->init = &hp100_probe;
+
+ /* Try to create the device */
+ if(register_netdev(hp100_devlist[i]) != 0)
+ {
+ /* DeAllocate everything */
+ /* Note: if dev->priv is mallocated, there is no way to fail */
+ kfree_s(hp100_devlist[i], sizeof(struct device));
+ hp100_devlist[i] = (struct device *) NULL;
+ ret = -EIO;
+ }
+ } /* Loop over all devices */
+
+ return ret;
}
void cleanup_module( void )
{
- unregister_netdev( &dev_hp100 );
- release_region( dev_hp100.base_addr, HP100_REGION_SIZE );
- if ( ((struct hp100_private *)dev_hp100.priv) -> mem_ptr_virt )
- iounmap( ((struct hp100_private *)dev_hp100.priv) -> mem_ptr_virt );
- kfree_s( dev_hp100.priv, sizeof( struct hp100_private ) );
- dev_hp100.priv = NULL;
+ int i;
+
+ /* TODO: Check if all skb's are released/freed. */
+ for(i = 0; i < 5; i++)
+ if(hp100_devlist[i] != (struct device *) NULL)
+ {
+ unregister_netdev( hp100_devlist[i] );
+ release_region( hp100_devlist[i]->base_addr, HP100_REGION_SIZE );
+ if( ((struct hp100_private *)hp100_devlist[i]->priv)->mode==1 ) /* busmaster */
+ kfree_s( ((struct hp100_private *)hp100_devlist[i]->priv)->page_vaddr, MAX_RINGSIZE+0x0f);
+ if ( ((struct hp100_private *)hp100_devlist[i]->priv) -> mem_ptr_virt )
+ iounmap( ((struct hp100_private *)hp100_devlist[i]->priv) -> mem_ptr_virt );
+ kfree_s( hp100_devlist[i]->priv, sizeof( struct hp100_private ) );
+ hp100_devlist[i]->priv = NULL;
+ kfree_s(hp100_devlist[i], sizeof(struct device));
+ hp100_devlist[i] = (struct device *) NULL;
+ }
}
-#endif
+#endif /* MODULE */
+
+
+
+/*
+ * Local variables:
+ * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c hp100.c"
+ * c-indent-level: 2
+ * tab-width: 8
+ * End:
+ */
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TCL-scripts by Sam Shen, slshen@lbl.gov