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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-07-13 15:38:08 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 20:04:12 -0700
commit115978859272b958366d4a08c99a24f9625fa663 (patch)
treee3eb08a76c0180bd5efa36985306878cbea5845f /drivers/net/sun3_82586.c
parentae150435b59e68de00546330241727f2fec54517 (diff)
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i825xx: Move the Intel 82586/82593/82596 based drivers
Move the drivers that use the i82586/i82593/i82596 chipsets into drivers/net/ethernet/i825xx/ and make the necessary Kconfig and Makefile changes. There were 4 3Com drivers which were initially moved into 3com/, which now reside in i825xx since they all used the i82586 chip. CC: Philip Blundell <philb@gnu.org> CC: Russell King <linux@arm.linux.org.uk> CC: <aris@cathedrallabs.org> CC: Donald Becker <becker@scyld.com> CC: Chris Beauregard <cpbeaure@undergrad.math.uwaterloo.ca> CC: Richard Procter <rnp@paradise.net.nz> CC: Andries Brouwer <aeb@cwi.nl> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Richard Hirst <richard@sleepie.demon.co.uk> CC: Sam Creasey <sammy@oh.verio.com> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/sun3_82586.c')
-rw-r--r--drivers/net/sun3_82586.c1213
1 files changed, 0 insertions, 1213 deletions
diff --git a/drivers/net/sun3_82586.c b/drivers/net/sun3_82586.c
deleted file mode 100644
index b6ae53bada75..000000000000
--- a/drivers/net/sun3_82586.c
+++ /dev/null
@@ -1,1213 +0,0 @@
-/*
- * Sun3 i82586 Ethernet driver
- *
- * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net)
- *
- * Original copyright follows:
- * --------------------------
- *
- * net-3-driver for the NI5210 card (i82586 Ethernet chip)
- *
- * This is an extension to the Linux operating system, and is covered by the
- * same Gnu Public License that covers that work.
- *
- * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later)
- * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de)
- * --------------------------
- *
- * Consult ni52.c for further notes from the original driver.
- *
- * This incarnation currently supports the OBIO version of the i82586 chip
- * used in certain sun3 models. It should be fairly doable to expand this
- * to support VME if I should every acquire such a board.
- *
- */
-
-static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */
-static int automatic_resume = 0; /* experimental .. better should be zero */
-static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */
-static int fifo=0x8; /* don't change */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <asm/io.h>
-#include <asm/idprom.h>
-#include <asm/machines.h>
-#include <asm/sun3mmu.h>
-#include <asm/dvma.h>
-#include <asm/byteorder.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include "sun3_82586.h"
-
-#define DRV_NAME "sun3_82586"
-
-#define DEBUG /* debug on */
-#define SYSBUSVAL 0 /* 16 Bit */
-#define SUN3_82586_TOTAL_SIZE PAGE_SIZE
-
-#define sun3_attn586() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
-#define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
-#define sun3_disint() {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
-#define sun3_enaint() {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
-#define sun3_active() {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}
-
-#define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
-#define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
-#define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop )))
-
-/******************* how to calculate the buffers *****************************
-
- * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
- * --------------- in a different (more stable?) mode. Only in this mode it's
- * possible to configure the driver with 'NO_NOPCOMMANDS'
-
-sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
-sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
-sizeof(rfd) = 24; sizeof(rbd) = 12;
-sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
-sizeof(nop_cmd) = 8;
-
- * if you don't know the driver, better do not change these values: */
-
-#define RECV_BUFF_SIZE 1536 /* slightly oversized */
-#define XMIT_BUFF_SIZE 1536 /* slightly oversized */
-#define NUM_XMIT_BUFFS 1 /* config for 32K shmem */
-#define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
-#define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
-#define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */
-#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */
-
-/**************************************************************************/
-
-/* different DELAYs */
-#define DELAY(x) mdelay(32 * x);
-#define DELAY_16(); { udelay(16); }
-#define DELAY_18(); { udelay(4); }
-
-/* wait for command with timeout: */
-#define WAIT_4_SCB_CMD() \
-{ int i; \
- for(i=0;i<16384;i++) { \
- if(!p->scb->cmd_cuc) break; \
- DELAY_18(); \
- if(i == 16383) { \
- printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
- if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
-
-#define WAIT_4_SCB_CMD_RUC() { int i; \
- for(i=0;i<16384;i++) { \
- if(!p->scb->cmd_ruc) break; \
- DELAY_18(); \
- if(i == 16383) { \
- printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
- if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
-
-#define WAIT_4_STAT_COMPL(addr) { int i; \
- for(i=0;i<32767;i++) { \
- if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
- DELAY_16(); DELAY_16(); } }
-
-static int sun3_82586_probe1(struct net_device *dev,int ioaddr);
-static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
-static int sun3_82586_open(struct net_device *dev);
-static int sun3_82586_close(struct net_device *dev);
-static int sun3_82586_send_packet(struct sk_buff *,struct net_device *);
-static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev);
-static void set_multicast_list(struct net_device *dev);
-static void sun3_82586_timeout(struct net_device *dev);
-#if 0
-static void sun3_82586_dump(struct net_device *,void *);
-#endif
-
-/* helper-functions */
-static int init586(struct net_device *dev);
-static int check586(struct net_device *dev,char *where,unsigned size);
-static void alloc586(struct net_device *dev);
-static void startrecv586(struct net_device *dev);
-static void *alloc_rfa(struct net_device *dev,void *ptr);
-static void sun3_82586_rcv_int(struct net_device *dev);
-static void sun3_82586_xmt_int(struct net_device *dev);
-static void sun3_82586_rnr_int(struct net_device *dev);
-
-struct priv
-{
- unsigned long base;
- char *memtop;
- long int lock;
- int reseted;
- volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first;
- volatile struct scp_struct *scp; /* volatile is important */
- volatile struct iscp_struct *iscp; /* volatile is important */
- volatile struct scb_struct *scb; /* volatile is important */
- volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS];
- volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
-#if (NUM_XMIT_BUFFS == 1)
- volatile struct nop_cmd_struct *nop_cmds[2];
-#else
- volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
-#endif
- volatile int nop_point,num_recv_buffs;
- volatile char *xmit_cbuffs[NUM_XMIT_BUFFS];
- volatile int xmit_count,xmit_last;
-};
-
-/**********************************************
- * close device
- */
-static int sun3_82586_close(struct net_device *dev)
-{
- free_irq(dev->irq, dev);
-
- sun3_reset586(); /* the hard way to stop the receiver */
-
- netif_stop_queue(dev);
-
- return 0;
-}
-
-/**********************************************
- * open device
- */
-static int sun3_82586_open(struct net_device *dev)
-{
- int ret;
-
- sun3_disint();
- alloc586(dev);
- init586(dev);
- startrecv586(dev);
- sun3_enaint();
-
- ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev);
- if (ret)
- {
- sun3_reset586();
- return ret;
- }
-
- netif_start_queue(dev);
-
- return 0; /* most done by init */
-}
-
-/**********************************************
- * Check to see if there's an 82586 out there.
- */
-static int check586(struct net_device *dev,char *where,unsigned size)
-{
- struct priv pb;
- struct priv *p = &pb;
- char *iscp_addr;
- int i;
-
- p->base = (unsigned long) dvma_btov(0);
- p->memtop = (char *)dvma_btov((unsigned long)where);
- p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
- memset((char *)p->scp,0, sizeof(struct scp_struct));
- for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
- if(((char *)p->scp)[i])
- return 0;
- p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */
- if(p->scp->sysbus != SYSBUSVAL)
- return 0;
-
- iscp_addr = (char *)dvma_btov((unsigned long)where);
-
- p->iscp = (struct iscp_struct *) iscp_addr;
- memset((char *)p->iscp,0, sizeof(struct iscp_struct));
-
- p->scp->iscp = make24(p->iscp);
- p->iscp->busy = 1;
-
- sun3_reset586();
- sun3_attn586();
- DELAY(1); /* wait a while... */
-
- if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
- return 0;
-
- return 1;
-}
-
-/******************************************************************
- * set iscp at the right place, called by sun3_82586_probe1 and open586.
- */
-static void alloc586(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- sun3_reset586();
- DELAY(1);
-
- p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
- p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start);
- p->scb = (struct scb_struct *) ((char *)p->iscp + sizeof(struct iscp_struct));
-
- memset((char *) p->iscp,0,sizeof(struct iscp_struct));
- memset((char *) p->scp ,0,sizeof(struct scp_struct));
-
- p->scp->iscp = make24(p->iscp);
- p->scp->sysbus = SYSBUSVAL;
- p->iscp->scb_offset = make16(p->scb);
- p->iscp->scb_base = make24(dvma_btov(dev->mem_start));
-
- p->iscp->busy = 1;
- sun3_reset586();
- sun3_attn586();
-
- DELAY(1);
-
- if(p->iscp->busy)
- printk("%s: Init-Problems (alloc).\n",dev->name);
-
- p->reseted = 0;
-
- memset((char *)p->scb,0,sizeof(struct scb_struct));
-}
-
-struct net_device * __init sun3_82586_probe(int unit)
-{
- struct net_device *dev;
- unsigned long ioaddr;
- static int found = 0;
- int err = -ENOMEM;
-
- /* check that this machine has an onboard 82586 */
- switch(idprom->id_machtype) {
- case SM_SUN3|SM_3_160:
- case SM_SUN3|SM_3_260:
- /* these machines have 82586 */
- break;
-
- default:
- return ERR_PTR(-ENODEV);
- }
-
- if (found)
- return ERR_PTR(-ENODEV);
-
- ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
- if (!ioaddr)
- return ERR_PTR(-ENOMEM);
- found = 1;
-
- dev = alloc_etherdev(sizeof(struct priv));
- if (!dev)
- goto out;
- if (unit >= 0) {
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
- }
-
- dev->irq = IE_IRQ;
- dev->base_addr = ioaddr;
- err = sun3_82586_probe1(dev, ioaddr);
- if (err)
- goto out1;
- err = register_netdev(dev);
- if (err)
- goto out2;
- return dev;
-
-out2:
- release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
-out1:
- free_netdev(dev);
-out:
- iounmap((void __iomem *)ioaddr);
- return ERR_PTR(err);
-}
-
-static const struct net_device_ops sun3_82586_netdev_ops = {
- .ndo_open = sun3_82586_open,
- .ndo_stop = sun3_82586_close,
- .ndo_start_xmit = sun3_82586_send_packet,
- .ndo_set_multicast_list = set_multicast_list,
- .ndo_tx_timeout = sun3_82586_timeout,
- .ndo_get_stats = sun3_82586_get_stats,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_change_mtu = eth_change_mtu,
-};
-
-static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
-{
- int i, size, retval;
-
- if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
- return -EBUSY;
-
- /* copy in the ethernet address from the prom */
- for(i = 0; i < 6 ; i++)
- dev->dev_addr[i] = idprom->id_ethaddr[i];
-
- printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
-
- /*
- * check (or search) IO-Memory, 32K
- */
- size = 0x8000;
-
- dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
- dev->mem_end = dev->mem_start + size;
-
- if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
- printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
- retval = -ENODEV;
- goto out;
- }
- if(!check586(dev,(char *) dev->mem_start,size)) {
- printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
- retval = -ENODEV;
- goto out;
- }
-
- ((struct priv *)netdev_priv(dev))->memtop =
- (char *)dvma_btov(dev->mem_start);
- ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
- alloc586(dev);
-
- /* set number of receive-buffs according to memsize */
- if(size == 0x2000)
- ((struct priv *)netdev_priv(dev))->num_recv_buffs =
- NUM_RECV_BUFFS_8;
- else if(size == 0x4000)
- ((struct priv *)netdev_priv(dev))->num_recv_buffs =
- NUM_RECV_BUFFS_16;
- else
- ((struct priv *)netdev_priv(dev))->num_recv_buffs =
- NUM_RECV_BUFFS_32;
-
- printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
-
- dev->netdev_ops = &sun3_82586_netdev_ops;
- dev->watchdog_timeo = HZ/20;
-
- dev->if_port = 0;
- return 0;
-out:
- release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
- return retval;
-}
-
-
-static int init586(struct net_device *dev)
-{
- void *ptr;
- int i,result=0;
- struct priv *p = netdev_priv(dev);
- volatile struct configure_cmd_struct *cfg_cmd;
- volatile struct iasetup_cmd_struct *ias_cmd;
- volatile struct tdr_cmd_struct *tdr_cmd;
- volatile struct mcsetup_cmd_struct *mc_cmd;
- struct netdev_hw_addr *ha;
- int num_addrs=netdev_mc_count(dev);
-
- ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct));
-
- cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */
- cfg_cmd->cmd_status = 0;
- cfg_cmd->cmd_cmd = swab16(CMD_CONFIGURE | CMD_LAST);
- cfg_cmd->cmd_link = 0xffff;
-
- cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */
- cfg_cmd->fifo = fifo; /* fifo-limit (8=tx:32/rx:64) */
- cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */
- cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
- cfg_cmd->priority = 0x00;
- cfg_cmd->ifs = 0x60;
- cfg_cmd->time_low = 0x00;
- cfg_cmd->time_high = 0xf2;
- cfg_cmd->promisc = 0;
- if(dev->flags & IFF_ALLMULTI) {
- int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
- if(num_addrs > len) {
- printk("%s: switching to promisc. mode\n",dev->name);
- cfg_cmd->promisc = 1;
- }
- }
- if(dev->flags&IFF_PROMISC)
- cfg_cmd->promisc = 1;
- cfg_cmd->carr_coll = 0x00;
-
- p->scb->cbl_offset = make16(cfg_cmd);
- p->scb->cmd_ruc = 0;
-
- p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
- sun3_attn586();
-
- WAIT_4_STAT_COMPL(cfg_cmd);
-
- if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
- {
- printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
- return 1;
- }
-
- /*
- * individual address setup
- */
-
- ias_cmd = (struct iasetup_cmd_struct *)ptr;
-
- ias_cmd->cmd_status = 0;
- ias_cmd->cmd_cmd = swab16(CMD_IASETUP | CMD_LAST);
- ias_cmd->cmd_link = 0xffff;
-
- memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN);
-
- p->scb->cbl_offset = make16(ias_cmd);
-
- p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
- sun3_attn586();
-
- WAIT_4_STAT_COMPL(ias_cmd);
-
- if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
- printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
- return 1;
- }
-
- /*
- * TDR, wire check .. e.g. no resistor e.t.c
- */
-
- tdr_cmd = (struct tdr_cmd_struct *)ptr;
-
- tdr_cmd->cmd_status = 0;
- tdr_cmd->cmd_cmd = swab16(CMD_TDR | CMD_LAST);
- tdr_cmd->cmd_link = 0xffff;
- tdr_cmd->status = 0;
-
- p->scb->cbl_offset = make16(tdr_cmd);
- p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
- sun3_attn586();
-
- WAIT_4_STAT_COMPL(tdr_cmd);
-
- if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
- {
- printk("%s: Problems while running the TDR.\n",dev->name);
- }
- else
- {
- DELAY_16(); /* wait for result */
- result = swab16(tdr_cmd->status);
-
- p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
- sun3_attn586(); /* ack the interrupts */
-
- if(result & TDR_LNK_OK)
- ;
- else if(result & TDR_XCVR_PRB)
- printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
- else if(result & TDR_ET_OPN)
- printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
- else if(result & TDR_ET_SRT)
- {
- if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
- printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
- }
- else
- printk("%s: TDR: Unknown status %04x\n",dev->name,result);
- }
-
- /*
- * Multicast setup
- */
- if(num_addrs && !(dev->flags & IFF_PROMISC) )
- {
- mc_cmd = (struct mcsetup_cmd_struct *) ptr;
- mc_cmd->cmd_status = 0;
- mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
- mc_cmd->cmd_link = 0xffff;
- mc_cmd->mc_cnt = swab16(num_addrs * 6);
-
- i = 0;
- netdev_for_each_mc_addr(ha, dev)
- memcpy((char *) mc_cmd->mc_list[i++],
- ha->addr, ETH_ALEN);
-
- p->scb->cbl_offset = make16(mc_cmd);
- p->scb->cmd_cuc = CUC_START;
- sun3_attn586();
-
- WAIT_4_STAT_COMPL(mc_cmd);
-
- if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
- printk("%s: Can't apply multicast-address-list.\n",dev->name);
- }
-
- /*
- * alloc nop/xmit-cmds
- */
-#if (NUM_XMIT_BUFFS == 1)
- for(i=0;i<2;i++)
- {
- p->nop_cmds[i] = (struct nop_cmd_struct *)ptr;
- p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP);
- p->nop_cmds[i]->cmd_status = 0;
- p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
- ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
- }
-#else
- for(i=0;i<NUM_XMIT_BUFFS;i++)
- {
- p->nop_cmds[i] = (struct nop_cmd_struct *)ptr;
- p->nop_cmds[i]->cmd_cmd = swab16(CMD_NOP);
- p->nop_cmds[i]->cmd_status = 0;
- p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
- ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
- }
-#endif
-
- ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */
-
- /*
- * alloc xmit-buffs / init xmit_cmds
- */
- for(i=0;i<NUM_XMIT_BUFFS;i++)
- {
- p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
- ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
- p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
- ptr = (char *) ptr + XMIT_BUFF_SIZE;
- p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
- ptr = (char *) ptr + sizeof(struct tbd_struct);
- if((void *)ptr > (void *)dev->mem_end)
- {
- printk("%s: not enough shared-mem for your configuration!\n",dev->name);
- return 1;
- }
- memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
- memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
- p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
- p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
- p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
- p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
- p->xmit_buffs[i]->next = 0xffff;
- p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
- }
-
- p->xmit_count = 0;
- p->xmit_last = 0;
-#ifndef NO_NOPCOMMANDS
- p->nop_point = 0;
-#endif
-
- /*
- * 'start transmitter'
- */
-#ifndef NO_NOPCOMMANDS
- p->scb->cbl_offset = make16(p->nop_cmds[0]);
- p->scb->cmd_cuc = CUC_START;
- sun3_attn586();
- WAIT_4_SCB_CMD();
-#else
- p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
- p->xmit_cmds[0]->cmd_cmd = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
-#endif
-
- /*
- * ack. interrupts
- */
- p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
- sun3_attn586();
- DELAY_16();
-
- sun3_enaint();
- sun3_active();
-
- return 0;
-}
-
-/******************************************************
- * This is a helper routine for sun3_82586_rnr_int() and init586().
- * It sets up the Receive Frame Area (RFA).
- */
-
-static void *alloc_rfa(struct net_device *dev,void *ptr)
-{
- volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
- volatile struct rbd_struct *rbd;
- int i;
- struct priv *p = netdev_priv(dev);
-
- memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
- p->rfd_first = rfd;
-
- for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
- rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
- rfd[i].rbd_offset = 0xffff;
- }
- rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP; /* RU suspend */
-
- ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
-
- rbd = (struct rbd_struct *) ptr;
- ptr = (void *) (rbd + p->num_recv_buffs);
-
- /* clr descriptors */
- memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));
-
- for(i=0;i<p->num_recv_buffs;i++)
- {
- rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
- rbd[i].size = swab16(RECV_BUFF_SIZE);
- rbd[i].buffer = make24(ptr);
- ptr = (char *) ptr + RECV_BUFF_SIZE;
- }
-
- p->rfd_top = p->rfd_first;
- p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);
-
- p->scb->rfa_offset = make16(p->rfd_first);
- p->rfd_first->rbd_offset = make16(rbd);
-
- return ptr;
-}
-
-
-/**************************************************
- * Interrupt Handler ...
- */
-
-static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
-{
- struct net_device *dev = dev_id;
- unsigned short stat;
- int cnt=0;
- struct priv *p;
-
- if (!dev) {
- printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
- return IRQ_NONE;
- }
- p = netdev_priv(dev);
-
- if(debuglevel > 1)
- printk("I");
-
- WAIT_4_SCB_CMD(); /* wait for last command */
-
- while((stat=p->scb->cus & STAT_MASK))
- {
- p->scb->cmd_cuc = stat;
- sun3_attn586();
-
- if(stat & STAT_FR) /* received a frame */
- sun3_82586_rcv_int(dev);
-
- if(stat & STAT_RNR) /* RU went 'not ready' */
- {
- printk("(R)");
- if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
- {
- WAIT_4_SCB_CMD();
- p->scb->cmd_ruc = RUC_RESUME;
- sun3_attn586();
- WAIT_4_SCB_CMD_RUC();
- }
- else
- {
- printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
- sun3_82586_rnr_int(dev);
- }
- }
-
- if(stat & STAT_CX) /* command with I-bit set complete */
- sun3_82586_xmt_int(dev);
-
-#ifndef NO_NOPCOMMANDS
- if(stat & STAT_CNA) /* CU went 'not ready' */
- {
- if(netif_running(dev))
- printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
- }
-#endif
-
- if(debuglevel > 1)
- printk("%d",cnt++);
-
- WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
- if(p->scb->cmd_cuc) /* timed out? */
- {
- printk("%s: Acknowledge timed out.\n",dev->name);
- sun3_disint();
- break;
- }
- }
-
- if(debuglevel > 1)
- printk("i");
- return IRQ_HANDLED;
-}
-
-/*******************************************************
- * receive-interrupt
- */
-
-static void sun3_82586_rcv_int(struct net_device *dev)
-{
- int status,cnt=0;
- unsigned short totlen;
- struct sk_buff *skb;
- struct rbd_struct *rbd;
- struct priv *p = netdev_priv(dev);
-
- if(debuglevel > 0)
- printk("R");
-
- for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
- {
- rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
-
- if(status & RFD_OK) /* frame received without error? */
- {
- if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
- {
- totlen &= RBD_MASK; /* length of this frame */
- rbd->status = 0;
- skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
- if(skb != NULL)
- {
- skb_reserve(skb,2);
- skb_put(skb,totlen);
- skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- }
- else
- dev->stats.rx_dropped++;
- }
- else
- {
- int rstat;
- /* free all RBD's until RBD_LAST is set */
- totlen = 0;
- while(!((rstat=swab16(rbd->status)) & RBD_LAST))
- {
- totlen += rstat & RBD_MASK;
- if(!rstat)
- {
- printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
- break;
- }
- rbd->status = 0;
- rbd = (struct rbd_struct *) make32(rbd->next);
- }
- totlen += rstat & RBD_MASK;
- rbd->status = 0;
- printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
- dev->stats.rx_dropped++;
- }
- }
- else /* frame !(ok), only with 'save-bad-frames' */
- {
- printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
- dev->stats.rx_errors++;
- }
- p->rfd_top->stat_high = 0;
- p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
- p->rfd_top->rbd_offset = 0xffff;
- p->rfd_last->last = 0; /* delete RFD_SUSP */
- p->rfd_last = p->rfd_top;
- p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
- p->scb->rfa_offset = make16(p->rfd_top);
-
- if(debuglevel > 0)
- printk("%d",cnt++);
- }
-
- if(automatic_resume)
- {
- WAIT_4_SCB_CMD();
- p->scb->cmd_ruc = RUC_RESUME;
- sun3_attn586();
- WAIT_4_SCB_CMD_RUC();
- }
-
-#ifdef WAIT_4_BUSY
- {
- int i;
- for(i=0;i<1024;i++)
- {
- if(p->rfd_top->status)
- break;
- DELAY_16();
- if(i == 1023)
- printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
- }
- }
-#endif
-
-#if 0
- if(!at_least_one)
- {
- int i;
- volatile struct rfd_struct *rfds=p->rfd_top;
- volatile struct rbd_struct *rbds;
- printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
- for(i=0;i< (p->num_recv_buffs+4);i++)
- {
- rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
- printk("%04x:%04x ",rfds->status,rbds->status);
- rfds = (struct rfd_struct *) make32(rfds->next);
- }
- printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
- printk("\nerrs: %04x %04x rus: %02x, cus: %02x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->rus,(int)p->scb->cus);
- }
- old_at_least = at_least_one;
-#endif
-
- if(debuglevel > 0)
- printk("r");
-}
-
-/**********************************************************
- * handle 'Receiver went not ready'.
- */
-
-static void sun3_82586_rnr_int(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- dev->stats.rx_errors++;
-
- WAIT_4_SCB_CMD(); /* wait for the last cmd, WAIT_4_FULLSTAT?? */
- p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
- sun3_attn586();
- WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. */
-
- alloc_rfa(dev,(char *)p->rfd_first);
-/* maybe add a check here, before restarting the RU */
- startrecv586(dev); /* restart RU */
-
- printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
-
-}
-
-/**********************************************************
- * handle xmit - interrupt
- */
-
-static void sun3_82586_xmt_int(struct net_device *dev)
-{
- int status;
- struct priv *p = netdev_priv(dev);
-
- if(debuglevel > 0)
- printk("X");
-
- status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
- if(!(status & STAT_COMPL))
- printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);
-
- if(status & STAT_OK)
- {
- dev->stats.tx_packets++;
- dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
- }
- else
- {
- dev->stats.tx_errors++;
- if(status & TCMD_LATECOLL) {
- printk("%s: late collision detected.\n",dev->name);
- dev->stats.collisions++;
- }
- else if(status & TCMD_NOCARRIER) {
- dev->stats.tx_carrier_errors++;
- printk("%s: no carrier detected.\n",dev->name);
- }
- else if(status & TCMD_LOSTCTS)
- printk("%s: loss of CTS detected.\n",dev->name);
- else if(status & TCMD_UNDERRUN) {
- dev->stats.tx_fifo_errors++;
- printk("%s: DMA underrun detected.\n",dev->name);
- }
- else if(status & TCMD_MAXCOLL) {
- printk("%s: Max. collisions exceeded.\n",dev->name);
- dev->stats.collisions += 16;
- }
- }
-
-#if (NUM_XMIT_BUFFS > 1)
- if( (++p->xmit_last) == NUM_XMIT_BUFFS)
- p->xmit_last = 0;
-#endif
- netif_wake_queue(dev);
-}
-
-/***********************************************************
- * (re)start the receiver
- */
-
-static void startrecv586(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- WAIT_4_SCB_CMD();
- WAIT_4_SCB_CMD_RUC();
- p->scb->rfa_offset = make16(p->rfd_first);
- p->scb->cmd_ruc = RUC_START;
- sun3_attn586(); /* start cmd. */
- WAIT_4_SCB_CMD_RUC(); /* wait for accept cmd. (no timeout!!) */
-}
-
-static void sun3_82586_timeout(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-#ifndef NO_NOPCOMMANDS
- if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
- {
- netif_wake_queue(dev);
-#ifdef DEBUG
- printk("%s: strange ... timeout with CU active?!?\n",dev->name);
- printk("%s: X0: %04x N0: %04x N1: %04x %d\n",dev->name,(int)swab16(p->xmit_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[1]->cmd_status),(int)p->nop_point);
-#endif
- p->scb->cmd_cuc = CUC_ABORT;
- sun3_attn586();
- WAIT_4_SCB_CMD();
- p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
- p->scb->cmd_cuc = CUC_START;
- sun3_attn586();
- WAIT_4_SCB_CMD();
- dev->trans_start = jiffies; /* prevent tx timeout */
- return 0;
- }
-#endif
- {
-#ifdef DEBUG
- printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
- printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
- printk("%s: check, whether you set the right interrupt number!\n",dev->name);
-#endif
- sun3_82586_close(dev);
- sun3_82586_open(dev);
- }
- dev->trans_start = jiffies; /* prevent tx timeout */
-}
-
-/******************************************************
- * send frame
- */
-
-static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
-{
- int len,i;
-#ifndef NO_NOPCOMMANDS
- int next_nop;
-#endif
- struct priv *p = netdev_priv(dev);
-
- if(skb->len > XMIT_BUFF_SIZE)
- {
- printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
- return NETDEV_TX_OK;
- }
-
- netif_stop_queue(dev);
-
-#if(NUM_XMIT_BUFFS > 1)
- if(test_and_set_bit(0,(void *) &p->lock)) {
- printk("%s: Queue was locked\n",dev->name);
- return NETDEV_TX_BUSY;
- }
- else
-#endif
- {
- len = skb->len;
- if (len < ETH_ZLEN) {
- memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
- ETH_ZLEN);
- len = ETH_ZLEN;
- }
- skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
-
-#if (NUM_XMIT_BUFFS == 1)
-# ifdef NO_NOPCOMMANDS
-
-#ifdef DEBUG
- if(p->scb->cus & CU_ACTIVE)
- {
- printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
- printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
- }
-#endif
-
- p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
- for(i=0;i<16;i++)
- {
- p->xmit_cmds[0]->cmd_status = 0;
- WAIT_4_SCB_CMD();
- if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
- p->scb->cmd_cuc = CUC_RESUME;
- else
- {
- p->scb->cbl_offset = make16(p->xmit_cmds[0]);
- p->scb->cmd_cuc = CUC_START;
- }
-
- sun3_attn586();
- if(!i)
- dev_kfree_skb(skb);
- WAIT_4_SCB_CMD();
- if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
- break;
- if(p->xmit_cmds[0]->cmd_status)
- break;
- if(i==15)
- printk("%s: Can't start transmit-command.\n",dev->name);
- }
-# else
- next_nop = (p->nop_point + 1) & 0x1;
- p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
-
- p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link
- = make16((p->nop_cmds[next_nop]));
- p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
-
- p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
- p->nop_point = next_nop;
- dev_kfree_skb(skb);
-# endif
-#else
- p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
- if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
- next_nop = 0;
-
- p->xmit_cmds[p->xmit_count]->cmd_status = 0;
- /* linkpointer of xmit-command already points to next nop cmd */
- p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
- p->nop_cmds[next_nop]->cmd_status = 0;
-
- p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
- p->xmit_count = next_nop;
-
- {
- unsigned long flags;
- local_irq_save(flags);
- if(p->xmit_count != p->xmit_last)
- netif_wake_queue(dev);
- p->lock = 0;
- local_irq_restore(flags);
- }
- dev_kfree_skb(skb);
-#endif
- }
- return NETDEV_TX_OK;
-}
-
-/*******************************************
- * Someone wanna have the statistics
- */
-
-static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
- unsigned short crc,aln,rsc,ovrn;
-
- crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
- p->scb->crc_errs = 0;
- aln = swab16(p->scb->aln_errs);
- p->scb->aln_errs = 0;
- rsc = swab16(p->scb->rsc_errs);
- p->scb->rsc_errs = 0;
- ovrn = swab16(p->scb->ovrn_errs);
- p->scb->ovrn_errs = 0;
-
- dev->stats.rx_crc_errors += crc;
- dev->stats.rx_fifo_errors += ovrn;
- dev->stats.rx_frame_errors += aln;
- dev->stats.rx_dropped += rsc;
-
- return &dev->stats;
-}
-
-/********************************************************
- * Set MC list ..
- */
-
-static void set_multicast_list(struct net_device *dev)
-{
- netif_stop_queue(dev);
- sun3_disint();
- alloc586(dev);
- init586(dev);
- startrecv586(dev);
- sun3_enaint();
- netif_wake_queue(dev);
-}
-
-#ifdef MODULE
-#error This code is not currently supported as a module
-static struct net_device *dev_sun3_82586;
-
-int init_module(void)
-{
- dev_sun3_82586 = sun3_82586_probe(-1);
- if (IS_ERR(dev_sun3_82586))
- return PTR_ERR(dev_sun3_82586);
- return 0;
-}
-
-void cleanup_module(void)
-{
- unsigned long ioaddr = dev_sun3_82586->base_addr;
- unregister_netdev(dev_sun3_82586);
- release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
- iounmap((void *)ioaddr);
- free_netdev(dev_sun3_82586);
-}
-#endif /* MODULE */
-
-#if 0
-/*
- * DUMP .. we expect a not running CMD unit and enough space
- */
-void sun3_82586_dump(struct net_device *dev,void *ptr)
-{
- struct priv *p = netdev_priv(dev);
- struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
- int i;
-
- p->scb->cmd_cuc = CUC_ABORT;
- sun3_attn586();
- WAIT_4_SCB_CMD();
- WAIT_4_SCB_CMD_RUC();
-
- dump_cmd->cmd_status = 0;
- dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
- dump_cmd->dump_offset = make16((dump_cmd + 1));
- dump_cmd->cmd_link = 0xffff;
-
- p->scb->cbl_offset = make16(dump_cmd);
- p->scb->cmd_cuc = CUC_START;
- sun3_attn586();
- WAIT_4_STAT_COMPL(dump_cmd);
-
- if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
- printk("%s: Can't get dump information.\n",dev->name);
-
- for(i=0;i<170;i++) {
- printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
- if(i % 24 == 23)
- printk("\n");
- }
- printk("\n");
-}
-#endif
-
-MODULE_LICENSE("GPL");