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minix/drivers/rtl8139/rtl8139.c
Ben Gras 6f77685609 Split of architecture-dependent and -independent functions for i386, 
mainly in the kernel and headers. This split based on work by
Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture
port.

 . kernel does not program the interrupt controller directly, do any
   other architecture-dependent operations, or contain assembly any more,
   but uses architecture-dependent functions in arch/$(ARCH)/.
 . architecture-dependent constants and types defined in arch/$(ARCH)/include.
 . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now,
   architecture-independent functions.
 . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls
   and live in arch/i386/do_* now.
 . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have
   gone, and 'machine.protected' is gone (and always taken to be 1 in i386).
   If 86 support is to return, it should be a new architecture.
 . prototypes for the architecture-dependent functions defined in
   kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h
 . /etc/make.conf included in makefiles and shell scripts that need to
   know the building architecture; it defines ARCH=<arch>, currently only
   i386.
 . some basic per-architecture build support outside of the kernel (lib)
 . in clock.c, only dequeue a process if it was ready
 . fixes for new include files

files deleted:
 . mpx/klib.s - only for choosing between mpx/klib86 and -386
 . klib86.s - only for 86

i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/:
 . mpx386.s (entry point)
 . klib386.s
 . sconst.h
 . exception.c
 . protect.c
 . protect.h
 . i8269.c
2006-12-22 15:22:27 +00:00

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/*
* rtl8139.c
*
* This file contains a ethernet device driver for Realtek rtl8139 based
* ethernet cards.
*
* The valid messages and their parameters are:
*
* m_type DL_PORT DL_PROC DL_COUNT DL_MODE DL_ADDR DL_GRANT
* |------------+----------+---------+----------+---------+---------+---------|
* | HARDINT | | | | | | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_WRITE | port nr | proc nr | count | mode | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_WRITEV | port nr | proc nr | count | mode | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_WRITEV_S| port nr | proc nr | count | mode | | grant |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_READ | port nr | proc nr | count | | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_READV | port nr | proc nr | count | | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_READV_S | port nr | proc nr | count | | | grant |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_CONF | port nr | proc nr | | mode | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_GETSTAT | port nr | proc nr | | | address | |
* |------------|----------|---------|----------|---------|---------|---------|
* |DL_GETSTAT_S| port nr | proc nr | | | | grant |
* |------------|----------|---------|----------|---------|---------|---------|
* | DL_STOP | port_nr | | | | | |
* |------------|----------|---------|----------|---------|---------|---------|
*
* The messages sent are:
*
* m-type DL_POR T DL_PROC DL_COUNT DL_STAT DL_CLCK
* |------------|----------|---------|----------|---------|---------|
* |DL_TASK_REPL| port nr | proc nr | rd-count | err|stat| clock |
* |------------|----------|---------|----------|---------|---------|
*
* m_type m3_i1 m3_i2 m3_ca1
* |------------+---------+-----------+---------------|
* |DL_CONF_REPL| port nr | last port | ethernet addr |
* |------------|---------|-----------|---------------|
*
* Created: Aug 2003 by Philip Homburg <philip@cs.vu.nl>
* Changes:
* Aug 15, 2004 sync alarms replace watchdogs timers (Jorrit N. Herder)
* May 02, 2004 flag alarms replace micro_elapsed() (Jorrit N. Herder)
*
*/
#include "../drivers.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include <minix/com.h>
#include <minix/keymap.h>
#include <minix/syslib.h>
#include <minix/type.h>
#include <minix/sysutil.h>
#include <timers.h>
#include <net/hton.h>
#include <net/gen/ether.h>
#include <net/gen/eth_io.h>
#include <ibm/pci.h>
#include <sys/types.h>
#include <fcntl.h>
#include <assert.h>
#include <unistd.h>
#include <sys/ioc_memory.h>
#include "../../kernel/const.h"
#include "../../kernel/config.h"
#include "../../kernel/type.h"
#define tmra_ut timer_t
#define tmra_inittimer(tp) tmr_inittimer(tp)
#define Proc_number(p) proc_number(p)
#define debug 0
#define printW() ((void)0)
#define vm_1phys2bus(p) (p)
#define VERBOSE 1 /* display message during init */
#include "rtl8139.h"
#define RX_BUFSIZE RL_RCR_RBLEN_64K_SIZE
#define RX_BUFBITS RL_RCR_RBLEN_64K
#define N_TX_BUF RL_N_TX
#define RE_PORT_NR 1 /* Minix */
/* I/O vectors are handled IOVEC_NR entries at a time. */
#define IOVEC_NR 16
/* Configuration */
#define RL_ENVVAR "RTLETH"
PRIVATE struct pcitab
{
u16_t vid;
u16_t did;
int checkclass;
} pcitab[]=
{
{ 0x10ec, 0x8139, 0 }, /* Realtek RTL8139 */
{ 0x1186, 0x1300, 0 }, /* D-Link RTL8139 */
{ 0x0000, 0x0000, 0 }
};
typedef struct re
{
port_t re_base_port;
int re_irq;
int re_mode;
int re_flags;
int re_client;
int re_link_up;
int re_got_int;
int re_send_int;
int re_report_link;
int re_clear_rx;
int re_need_reset;
int re_tx_alive;
char *re_model;
/* Rx */
phys_bytes re_rx_buf;
char *v_re_rx_buf;
vir_bytes re_read_s;
/* Tx */
int re_tx_head;
int re_tx_tail;
struct
{
int ret_busy;
phys_bytes ret_buf;
char * v_ret_buf;
} re_tx[N_TX_BUF];
u32_t re_ertxth; /* Early Tx Threshold */
/* PCI related */
int re_seen; /* TRUE iff device available */
u8_t re_pcibus;
u8_t re_pcidev;
u8_t re_pcifunc;
/* 'large' items */
int re_hook_id; /* IRQ hook id at kernel */
eth_stat_t re_stat;
ether_addr_t re_address;
message re_rx_mess;
message re_tx_mess;
char re_name[sizeof("rtl8139#n")];
iovec_t re_iovec[IOVEC_NR];
iovec_s_t re_iovec_s[IOVEC_NR];
}
re_t;
#define REM_DISABLED 0x0
#define REM_ENABLED 0x1
#define REF_PACK_SENT 0x001
#define REF_PACK_RECV 0x002
#define REF_SEND_AVAIL 0x004
#define REF_READING 0x010
#define REF_EMPTY 0x000
#define REF_PROMISC 0x040
#define REF_MULTI 0x080
#define REF_BROAD 0x100
#define REF_ENABLED 0x200
static re_t re_table[RE_PORT_NR];
static u16_t eth_ign_proto;
static tmra_ut rl_watchdog;
FORWARD _PROTOTYPE( unsigned my_inb, (U16_t port) );
FORWARD _PROTOTYPE( unsigned my_inw, (U16_t port) );
FORWARD _PROTOTYPE( unsigned my_inl, (U16_t port) );
static unsigned my_inb(U16_t port) {
u32_t value;
int s;
if ((s=sys_inb(port, &value)) !=OK)
printf("RTL8139: warning, sys_inb failed: %d\n", s);
return value;
}
static unsigned my_inw(U16_t port) {
u32_t value;
int s;
if ((s=sys_inw(port, &value)) !=OK)
printf("RTL8139: warning, sys_inw failed: %d\n", s);
return value;
}
static unsigned my_inl(U16_t port) {
U32_t value;
int s;
if ((s=sys_inl(port, &value)) !=OK)
printf("RTL8139: warning, sys_inl failed: %d\n", s);
return value;
}
#define rl_inb(port, offset) (my_inb((port) + (offset)))
#define rl_inw(port, offset) (my_inw((port) + (offset)))
#define rl_inl(port, offset) (my_inl((port) + (offset)))
FORWARD _PROTOTYPE( void my_outb, (U16_t port, U8_t value) );
FORWARD _PROTOTYPE( void my_outw, (U16_t port, U16_t value) );
FORWARD _PROTOTYPE( void my_outl, (U16_t port, U32_t value) );
static void my_outb(U16_t port, U8_t value) {
int s;
if ((s=sys_outb(port, value)) !=OK)
printf("RTL8139: warning, sys_outb failed: %d\n", s);
}
static void my_outw(U16_t port, U16_t value) {
int s;
if ((s=sys_outw(port, value)) !=OK)
printf("RTL8139: warning, sys_outw failed: %d\n", s);
}
static void my_outl(U16_t port, U32_t value) {
int s;
if ((s=sys_outl(port, value)) !=OK)
printf("RTL8139: warning, sys_outl failed: %d\n", s);
}
#define rl_outb(port, offset, value) (my_outb((port) + (offset), (value)))
#define rl_outw(port, offset, value) (my_outw((port) + (offset), (value)))
#define rl_outl(port, offset, value) (my_outl((port) + (offset), (value)))
_PROTOTYPE( static void sig_handler, (void) );
_PROTOTYPE( static void rl_init, (message *mp) );
_PROTOTYPE( static void rl_pci_conf, (void) );
_PROTOTYPE( static int rl_probe, (re_t *rep) );
_PROTOTYPE( static void rl_conf_hw, (re_t *rep) );
_PROTOTYPE( static void rl_init_buf, (re_t *rep) );
_PROTOTYPE( static void rl_init_hw, (re_t *rep) );
_PROTOTYPE( static void rl_reset_hw, (re_t *rep) );
_PROTOTYPE( static void rl_confaddr, (re_t *rep) );
_PROTOTYPE( static void rl_rec_mode, (re_t *rep) );
_PROTOTYPE( static void rl_readv, (message *mp, int from_int,
int vectored) );
_PROTOTYPE( static void rl_readv_s, (message *mp, int from_int) );
_PROTOTYPE( static void rl_writev, (message *mp, int from_int,
int vectored) );
_PROTOTYPE( static void rl_writev_s, (message *mp, int from_int) );
_PROTOTYPE( static void rl_check_ints, (re_t *rep) );
_PROTOTYPE( static void rl_report_link, (re_t *rep) );
_PROTOTYPE( static void mii_print_techab, (U16_t techab) );
_PROTOTYPE( static void mii_print_stat_speed, (U16_t stat,
U16_t extstat) );
_PROTOTYPE( static void rl_clear_rx, (re_t *rep) );
_PROTOTYPE( static void rl_do_reset, (re_t *rep) );
_PROTOTYPE( static void rl_getstat, (message *mp) );
_PROTOTYPE( static void rl_getstat_s, (message *mp) );
_PROTOTYPE( static void rl_getname, (message *mp) );
_PROTOTYPE( static void reply, (re_t *rep, int err, int may_block) );
_PROTOTYPE( static void mess_reply, (message *req, message *reply) );
_PROTOTYPE( static void rtl8139_stop, (void) );
_PROTOTYPE( static void check_int_events, (void) );
_PROTOTYPE( static int do_hard_int, (void) );
_PROTOTYPE( static void rtl8139_dump, (message *m) );
#if 0
_PROTOTYPE( static void dump_phy, (re_t *rep) );
#endif
_PROTOTYPE( static int rl_handler, (re_t *rep) );
_PROTOTYPE( static void rl_watchdog_f, (timer_t *tp) );
/* The message used in the main loop is made global, so that rl_watchdog_f()
* can change its message type to fake a HARD_INT message.
*/
PRIVATE message m;
PRIVATE int int_event_check; /* set to TRUE if events arrived */
static char *progname;
extern int errno;
/*===========================================================================*
* main *
*===========================================================================*/
int main(int argc, char *argv[])
{
int fkeys, sfkeys;
int inet_proc_nr;
int i, r;
re_t *rep;
long v;
env_setargs(argc, argv);
v= 0;
(void) env_parse("ETH_IGN_PROTO", "x", 0, &v, 0x0000L, 0xFFFFL);
eth_ign_proto= htons((u16_t) v);
/* Observe some function key for debug dumps. */
fkeys = sfkeys = 0; bit_set(sfkeys, 9);
if ((r=fkey_map(&fkeys, &sfkeys)) != OK)
printf("Warning: RTL8139 couldn't observe Shift+F9 key: %d\n",r);
/* Claim buffer memory now under Minix, before MM takes it all. */
for (rep= &re_table[0]; rep < re_table+RE_PORT_NR; rep++)
rl_init_buf(rep);
/* Try to notify INET that we are present (again). If INET cannot
* be found, assume this is the first time we started and INET is
* not yet alive.
*/
(progname=strrchr(argv[0],'/')) ? progname++ : (progname=argv[0]);
r = _pm_findproc("inet", &inet_proc_nr);
if (r == OK) notify(inet_proc_nr);
while (TRUE)
{
if ((r= receive(ANY, &m)) != OK)
panic("rtl8139","receive failed", r);
switch (m.m_type)
{
case DEV_PING: notify(m.m_source); break;
case DL_WRITE: rl_writev(&m, FALSE, FALSE); break;
case DL_WRITEV: rl_writev(&m, FALSE, TRUE); break;
case DL_WRITEV_S: rl_writev_s(&m, FALSE); break;
case DL_READ: rl_readv(&m, FALSE, FALSE); break;
case DL_READV: rl_readv(&m, FALSE, TRUE); break;
case DL_READV_S: rl_readv_s(&m, FALSE); break;
case DL_CONF: rl_init(&m); break;
case DL_GETSTAT: rl_getstat(&m); break;
case DL_GETSTAT_S: rl_getstat_s(&m); break;
case DL_GETNAME: rl_getname(&m); break;
#if 0
case DL_STOP: do_stop(&m); break;
#endif
case SYN_ALARM:
/* Under MINIX, synchronous alarms are used instead of
* watchdog functions. The approach is very different:
* MINIX VMD timeouts are handled within the kernel
* (the watchdog is executed by CLOCK), and notify()
* the driver in some cases.
* MINIX timeouts result in a SYN_ALARM message to the
* driver and thus are handled where they should be
* handled. Locally, watchdog functions are used again.
*/
rl_watchdog_f(NULL);
break;
case HARD_INT:
do_hard_int();
if (int_event_check)
check_int_events();
break ;
case FKEY_PRESSED: rtl8139_dump(&m); break;
case PROC_EVENT:
sig_handler();
break;
default:
panic("rtl8139","illegal message", m.m_type);
}
}
}
/*===========================================================================*
* sig_handler *
*===========================================================================*/
PRIVATE void sig_handler()
{
sigset_t sigset;
int sig;
/* Try to obtain signal set from PM. */
if (getsigset(&sigset) != 0) return;
/* Check for known signals. */
if (sigismember(&sigset, SIGTERM)) {
rtl8139_stop();
}
}
/*===========================================================================*
* check_int_events *
*===========================================================================*/
static void check_int_events(void)
{
int i;
re_t *rep;
for (i= 0, rep= &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
if (!rep->re_got_int)
continue;
rep->re_got_int= 0;
assert(rep->re_flags & REF_ENABLED);
rl_check_ints(rep);
}
}
/*===========================================================================*
* rtl8139_stop *
*===========================================================================*/
static void rtl8139_stop()
{
int i;
re_t *rep;
for (i= 0, rep= &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
rl_outb(rep->re_base_port, RL_CR, 0);
}
sys_exit(0);
}
/*===========================================================================*
* rtl8139_dump *
*===========================================================================*/
static void rtl8139_dump(m)
message *m; /* pointer to request message */
{
re_t *rep;
int i;
printf("\n");
for (i= 0, rep = &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode == REM_DISABLED)
printf("Realtek RTL 8139 port %d is disabled\n", i);
if (rep->re_mode != REM_ENABLED)
continue;
printf("Realtek RTL 8139 statistics of port %d:\n", i);
printf("recvErr :%8ld\t", rep->re_stat.ets_recvErr);
printf("sendErr :%8ld\t", rep->re_stat.ets_sendErr);
printf("OVW :%8ld\n", rep->re_stat.ets_OVW);
printf("CRCerr :%8ld\t", rep->re_stat.ets_CRCerr);
printf("frameAll :%8ld\t", rep->re_stat.ets_frameAll);
printf("missedP :%8ld\n", rep->re_stat.ets_missedP);
printf("packetR :%8ld\t", rep->re_stat.ets_packetR);
printf("packetT :%8ld\t", rep->re_stat.ets_packetT);
printf("transDef :%8ld\n", rep->re_stat.ets_transDef);
printf("collision :%8ld\t", rep->re_stat.ets_collision);
printf("transAb :%8ld\t", rep->re_stat.ets_transAb);
printf("carrSense :%8ld\n", rep->re_stat.ets_carrSense);
printf("fifoUnder :%8ld\t", rep->re_stat.ets_fifoUnder);
printf("fifoOver :%8ld\t", rep->re_stat.ets_fifoOver);
printf("CDheartbeat:%8ld\n", rep->re_stat.ets_CDheartbeat);
printf("OWC :%8ld\t", rep->re_stat.ets_OWC);
printf("re_flags = 0x%x\n", rep->re_flags);
printf(
"TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(rep->re_base_port, RL_TSAD),
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
printf("tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
}
}
/*===========================================================================*
* do_init *
*===========================================================================*/
static void rl_init(mp)
message *mp;
{
static int first_time= 1;
int port;
re_t *rep;
message reply_mess;
if (first_time)
{
first_time= 0;
rl_pci_conf(); /* Configure PCI devices. */
tmra_inittimer(&rl_watchdog);
/* Use a synchronous alarm instead of a watchdog timer. */
sys_setalarm(HZ, 0);
}
port = mp->DL_PORT;
if (port < 0 || port >= RE_PORT_NR)
{
reply_mess.m_type= DL_CONF_REPLY;
reply_mess.m3_i1= ENXIO;
mess_reply(mp, &reply_mess);
return;
}
rep= &re_table[port];
if (rep->re_mode == REM_DISABLED)
{
/* This is the default, try to (re)locate the device. */
rl_conf_hw(rep);
if (rep->re_mode == REM_DISABLED)
{
/* Probe failed, or the device is configured off. */
reply_mess.m_type= DL_CONF_REPLY;
reply_mess.m3_i1= ENXIO;
mess_reply(mp, &reply_mess);
return;
}
if (rep->re_mode == REM_ENABLED)
rl_init_hw(rep);
#if VERBOSE /* load silently ... can always check status later */
rl_report_link(rep);
#endif
}
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
rep->re_flags &= ~(REF_PROMISC | REF_MULTI | REF_BROAD);
if (mp->DL_MODE & DL_PROMISC_REQ)
rep->re_flags |= REF_PROMISC;
if (mp->DL_MODE & DL_MULTI_REQ)
rep->re_flags |= REF_MULTI;
if (mp->DL_MODE & DL_BROAD_REQ)
rep->re_flags |= REF_BROAD;
rep->re_client = mp->m_source;
rl_rec_mode(rep);
reply_mess.m_type = DL_CONF_REPLY;
reply_mess.m3_i1 = mp->DL_PORT;
reply_mess.m3_i2 = RE_PORT_NR;
*(ether_addr_t *) reply_mess.m3_ca1 = rep->re_address;
mess_reply(mp, &reply_mess);
}
/*===========================================================================*
* rl_pci_conf *
*===========================================================================*/
static void rl_pci_conf()
{
int i, h;
re_t *rep;
static char envvar[] = RL_ENVVAR "#";
static char envfmt[] = "*:d.d.d";
static char val[128];
long v;
for (i= 0, rep= re_table; i<RE_PORT_NR; i++, rep++)
{
strcpy(rep->re_name, "rtl8139#0");
rep->re_name[8] += i;
rep->re_seen= FALSE;
envvar[sizeof(RL_ENVVAR)-1]= '0'+i;
if (0 == env_get_param(envvar, val, sizeof(val)) &&
! env_prefix(envvar, "pci")) {
env_panic(envvar);
}
v= 0;
(void) env_parse(envvar, envfmt, 1, &v, 0, 255);
rep->re_pcibus= v;
v= 0;
(void) env_parse(envvar, envfmt, 2, &v, 0, 255);
rep->re_pcidev= v;
v= 0;
(void) env_parse(envvar, envfmt, 3, &v, 0, 255);
rep->re_pcifunc= v;
}
pci_init();
for (h= 1; h >= 0; h--) {
for (i= 0, rep= re_table; i<RE_PORT_NR; i++, rep++)
{
if (((rep->re_pcibus | rep->re_pcidev |
rep->re_pcifunc) != 0) != h)
{
continue;
}
if (rl_probe(rep))
rep->re_seen= TRUE;
}
}
}
/*===========================================================================*
* rl_probe *
*===========================================================================*/
static int rl_probe(rep)
re_t *rep;
{
int i, r, devind, just_one;
u16_t vid, did;
u32_t bar;
u8_t ilr;
char *dname;
if ((rep->re_pcibus | rep->re_pcidev | rep->re_pcifunc) != 0)
{
/* Look for specific PCI device */
r= pci_find_dev(rep->re_pcibus, rep->re_pcidev,
rep->re_pcifunc, &devind);
if (r == 0)
{
printf("%s: no PCI found at %d.%d.%d\n",
rep->re_name, rep->re_pcibus,
rep->re_pcidev, rep->re_pcifunc);
return 0;
}
pci_ids(devind, &vid, &did);
just_one= TRUE;
}
else
{
r= pci_first_dev(&devind, &vid, &did);
if (r == 0)
return 0;
just_one= FALSE;
}
for(;;)
{
for (i= 0; pcitab[i].vid != 0; i++)
{
if (pcitab[i].vid != vid)
continue;
if (pcitab[i].did != did)
continue;
if (pcitab[i].checkclass)
{
panic("rtl_probe",
"class check not implemented", NO_NUM);
}
break;
}
if (pcitab[i].vid != 0)
break;
if (just_one)
{
printf(
"%s: wrong PCI device (%04x/%04x) found at %d.%d.%d\n",
rep->re_name, vid, did,
rep->re_pcibus,
rep->re_pcidev, rep->re_pcifunc);
return 0;
}
r= pci_next_dev(&devind, &vid, &did);
if (!r)
return 0;
}
#if VERBOSE /* stay silent at startup, can always get status later */
dname= pci_dev_name(vid, did);
if (!dname)
dname= "unknown device";
printf("%s: ", rep->re_name);
printf("%s (%x/%x) at %s\n", dname, vid, did, pci_slot_name(devind));
#endif
pci_reserve(devind);
/* printf("cr = 0x%x\n", pci_attr_r16(devind, PCI_CR)); */
bar= pci_attr_r32(devind, PCI_BAR) & 0xffffffe0;
if (bar < 0x400)
{
panic("rtl_probe",
"base address is not properly configured", NO_NUM);
}
rep->re_base_port= bar;
ilr= pci_attr_r8(devind, PCI_ILR);
rep->re_irq= ilr;
if (debug)
{
printf("%s: using I/O address 0x%lx, IRQ %d\n",
rep->re_name, (unsigned long)bar, ilr);
}
return TRUE;
}
/*===========================================================================*
* rl_conf_hw *
*===========================================================================*/
static void rl_conf_hw(rep)
re_t *rep;
{
static eth_stat_t empty_stat = {0, 0, 0, 0, 0, 0 /* ,... */ };
rep->re_mode= REM_DISABLED; /* Superfluous */
if (rep->re_seen)
{
/* PCI device is present */
rep->re_mode= REM_ENABLED;
}
if (rep->re_mode != REM_ENABLED)
return;
rep->re_flags= REF_EMPTY;
rep->re_link_up= -1; /* Unknown */
rep->re_got_int= 0;
rep->re_send_int= 0;
rep->re_report_link= 0;
rep->re_clear_rx= 0;
rep->re_need_reset= 0;
rep->re_tx_alive= 0;
rep->re_read_s= 0;
rep->re_tx_head= 0;
rep->re_tx_tail= 0;
rep->re_ertxth= RL_TSD_ERTXTH_8;
rep->re_stat= empty_stat;
}
/*===========================================================================*
* rl_init_buf *
*===========================================================================*/
static void rl_init_buf(rep)
re_t *rep;
{
size_t rx_bufsize, tx_bufsize, tot_bufsize;
phys_bytes buf;
char *mallocbuf;
static struct memory chunk;
int fd, s, i, off;
/* Allocate receive and transmit buffers */
tx_bufsize= ETH_MAX_PACK_SIZE_TAGGED;
if (tx_bufsize % 4)
tx_bufsize += 4-(tx_bufsize % 4); /* Align */
rx_bufsize= RX_BUFSIZE;
tot_bufsize= N_TX_BUF*tx_bufsize + rx_bufsize;
/* Now try to allocate a kernel memory buffer. */
chunk.size = tot_bufsize;
#define BUF_ALIGNMENT (64*1024)
if(!(mallocbuf = malloc(BUF_ALIGNMENT + tot_bufsize))) {
panic("RTL8139","Couldn't allocate kernel buffer",i);
}
if(OK != (i = sys_umap(SELF, D, (vir_bytes) mallocbuf, tot_bufsize, &buf))) {
panic("RTL8139","Couldn't re-map malloced buffer",i);
}
/* click-align mallocced buffer. this is what we used to get
* from kmalloc() too.
*/
if((off = buf % BUF_ALIGNMENT)) {
mallocbuf += BUF_ALIGNMENT - off;
buf += BUF_ALIGNMENT - off;
}
for (i= 0; i<N_TX_BUF; i++)
{
rep->re_tx[i].ret_buf= buf;
rep->re_tx[i].v_ret_buf= mallocbuf;
buf += tx_bufsize;
mallocbuf += tx_bufsize;
}
rep->re_rx_buf= buf;
rep->v_re_rx_buf= mallocbuf;
}
/*===========================================================================*
* rl_init_hw *
*===========================================================================*/
static void rl_init_hw(rep)
re_t *rep;
{
int s, i;
rep->re_flags = REF_EMPTY;
rep->re_flags |= REF_ENABLED;
/* Set the interrupt handler. The policy is to only send HARD_INT
* notifications. Don't reenable interrupts automatically. The id
* that is passed back is the interrupt line number.
*/
rep->re_hook_id = rep->re_irq;
if ((s=sys_irqsetpolicy(rep->re_irq, 0, &rep->re_hook_id)) != OK)
printf("RTL8139: error, couldn't set IRQ policy: %d\n", s);
rl_reset_hw(rep);
if ((s=sys_irqenable(&rep->re_hook_id)) != OK)
printf("RTL8139: error, couldn't enable interrupts: %d\n", s);
#if VERBOSE /* stay silent during startup, can always get status later */
if (rep->re_model) {
printf("%s: model %s\n", rep->re_name, rep->re_model);
} else
{
printf("%s: unknown model 0x%08x\n",
rep->re_name,
rl_inl(rep->re_base_port, RL_TCR) &
(RL_TCR_HWVER_AM | RL_TCR_HWVER_BM));
}
#endif
rl_confaddr(rep);
if (debug)
{
printf("%s: Ethernet address ", rep->re_name);
for (i= 0; i < 6; i++)
{
printf("%x%c", rep->re_address.ea_addr[i],
i < 5 ? ':' : '\n');
}
}
}
/*===========================================================================*
* rl_reset_hw *
*===========================================================================*/
static void rl_reset_hw(rep)
re_t *rep;
{
port_t port;
u32_t t;
phys_bytes bus_buf;
int i;
clock_t t0,t1;
port= rep->re_base_port;
#if 0
/* Reset the PHY */
rl_outb(port, RL_BMCR, MII_CTRL_RST);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_BMCR) & MII_CTRL_RST))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_BMCR) & MII_CTRL_RST)
panic("rtl8139","reset PHY failed to complete", NO_NUM);
#endif
/* Reset the device */
printf("rl_reset_hw: (before reset) port = 0x%x, RL_CR = 0x%x\n",
port, rl_inb(port, RL_CR));
rl_outb(port, RL_CR, RL_CR_RST);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_RST))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
printf("rl_reset_hw: (after reset) port = 0x%x, RL_CR = 0x%x\n",
port, rl_inb(port, RL_CR));
if (rl_inb(port, RL_CR) & RL_CR_RST)
printf("rtl8139: reset failed to complete");
t= rl_inl(port, RL_TCR);
switch(t & (RL_TCR_HWVER_AM | RL_TCR_HWVER_BM))
{
case RL_TCR_HWVER_RTL8139: rep->re_model= "RTL8139"; break;
case RL_TCR_HWVER_RTL8139A: rep->re_model= "RTL8139A"; break;
case RL_TCR_HWVER_RTL8139AG:
rep->re_model= "RTL8139A-G / RTL8139C";
break;
case RL_TCR_HWVER_RTL8139B:
rep->re_model= "RTL8139B / RTL8130";
break;
case RL_TCR_HWVER_RTL8100: rep->re_model= "RTL8100"; break;
case RL_TCR_HWVER_RTL8100B:
rep->re_model= "RTL8100B/RTL8139D";
break;
case RL_TCR_HWVER_RTL8139CP: rep->re_model= "RTL8139C+"; break;
case RL_TCR_HWVER_RTL8101: rep->re_model= "RTL8101"; break;
default:
rep->re_model= NULL;
break;
}
#if 0
printf("REVID: 0x%02x\n", rl_inb(port, RL_REVID));
#endif
/* Intialize Rx */
/* Should init multicast mask */
#if 0
08-0f R/W MAR[0-7] multicast
#endif
bus_buf= vm_1phys2bus(rep->re_rx_buf);
rl_outl(port, RL_RBSTART, bus_buf);
/* Initialize Tx */
for (i= 0; i<N_TX_BUF; i++)
{
rep->re_tx[i].ret_busy= FALSE;
bus_buf= vm_1phys2bus(rep->re_tx[i].ret_buf);
rl_outl(port, RL_TSAD0+i*4, bus_buf);
t= rl_inl(port, RL_TSD0+i*4);
assert(t & RL_TSD_OWN);
}
#if 0
dump_phy(rep);
#endif
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_SERR | RL_IMR_TIMEOUT |
RL_IMR_LENCHG));
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_FOVW | RL_IMR_PUN |
RL_IMR_RXOVW | RL_IMR_RER | RL_IMR_ROK));
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_TER | RL_IMR_TOK));
t= rl_inb(port, RL_CR);
rl_outb(port, RL_CR, t | RL_CR_RE);
t= rl_inb(port, RL_CR);
rl_outb(port, RL_CR, t | RL_CR_TE);
rl_outl(port, RL_RCR, RX_BUFBITS);
t= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, t | RL_TCR_IFG_STD);
}
/*===========================================================================*
* rl_confaddr *
*===========================================================================*/
static void rl_confaddr(rep)
re_t *rep;
{
static char eakey[]= RL_ENVVAR "#_EA";
static char eafmt[]= "x:x:x:x:x:x";
int i;
port_t port;
u32_t w;
long v;
/* User defined ethernet address? */
eakey[sizeof(RL_ENVVAR)-1]= '0' + (rep-re_table);
port= rep->re_base_port;
for (i= 0; i < 6; i++)
{
if (env_parse(eakey, eafmt, i, &v, 0x00L, 0xFFL) != EP_SET)
break;
rep->re_address.ea_addr[i]= v;
}
if (i != 0 && i != 6) env_panic(eakey); /* It's all or nothing */
/* Should update ethernet address in hardware */
if (i == 6)
{
port= rep->re_base_port;
rl_outb(port, RL_9346CR, RL_9346CR_EEM_CONFIG);
w= 0;
for (i= 0; i<4; i++)
w |= (rep->re_address.ea_addr[i] << (i*8));
rl_outl(port, RL_IDR, w);
w= 0;
for (i= 4; i<6; i++)
w |= (rep->re_address.ea_addr[i] << ((i-4)*8));
rl_outl(port, RL_IDR+4, w);
rl_outb(port, RL_9346CR, RL_9346CR_EEM_NORMAL);
}
/* Get ethernet address */
for (i= 0; i<6; i++)
rep->re_address.ea_addr[i]= rl_inb(port, RL_IDR+i);
}
/*===========================================================================*
* rl_rec_mode *
*===========================================================================*/
static void rl_rec_mode(rep)
re_t *rep;
{
port_t port;
u32_t rcr;
port= rep->re_base_port;
rcr= rl_inl(port, RL_RCR);
rcr &= ~(RL_RCR_AB|RL_RCR_AM|RL_RCR_APM|RL_RCR_AAP);
if (rep->re_flags & REF_PROMISC)
rcr |= RL_RCR_AB | RL_RCR_AM | RL_RCR_AAP;
if (rep->re_flags & REF_BROAD)
rcr |= RL_RCR_AB;
if (rep->re_flags & REF_MULTI)
rcr |= RL_RCR_AM;
rcr |= RL_RCR_APM;
rl_outl(port, RL_RCR, rcr);
}
/*===========================================================================*
* rl_readv *
*===========================================================================*/
static void rl_readv(mp, from_int, vectored)
message *mp;
int from_int;
int vectored;
{
int i, j, n, o, s, s1, dl_port, re_client, count, size;
port_t port;
unsigned amount, totlen, packlen;
phys_bytes src_phys, dst_phys, iov_src;
u16_t d_start, d_end;
u32_t l, rxstat = 0x12345678;
re_t *rep;
iovec_t *iovp;
int cps;
dl_port = mp->DL_PORT;
count = mp->DL_COUNT;
if (dl_port < 0 || dl_port >= RE_PORT_NR)
panic("rtl8139"," illegal port", dl_port);
rep= &re_table[dl_port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
if (rep->re_clear_rx)
goto suspend; /* Buffer overflow */
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
port= rep->re_base_port;
/* Assume that the RL_CR_BUFE check was been done by rl_checks_ints
*/
if (!from_int && (rl_inb(port, RL_CR) & RL_CR_BUFE))
{
/* Receive buffer is empty, suspend */
goto suspend;
}
d_start= rl_inw(port, RL_CAPR) + RL_CAPR_DATA_OFF;
d_end= rl_inw(port, RL_CBR) % RX_BUFSIZE;
if (d_start >= RX_BUFSIZE)
{
printf("rl_readv: strange value in RL_CAPR: 0x%x\n",
rl_inw(port, RL_CAPR));
d_start %= RX_BUFSIZE;
}
if (d_end > d_start)
amount= d_end-d_start;
else
amount= d_end+RX_BUFSIZE - d_start;
rxstat = *(u32_t *) (rep->v_re_rx_buf + d_start);
if (rep->re_clear_rx)
{
#if 0
printf("rl_readv: late buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
/* Should convert from little endian to host byte order */
if (!(rxstat & RL_RXS_ROK))
{
printf("rxstat = 0x%08lx\n", rxstat);
printf("d_start: 0x%x, d_end: 0x%x, rxstat: 0x%lx\n",
d_start, d_end, rxstat);
panic("rtl8139","received packet not OK", NO_NUM);
}
totlen= (rxstat >> RL_RXS_LEN_S);
if (totlen < 8 || totlen > 2*ETH_MAX_PACK_SIZE)
{
/* Someting went wrong */
printf(
"rl_readv: bad length (%u) in status 0x%08lx at offset 0x%x\n",
totlen, rxstat, d_start);
printf(
"d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%lx\n",
d_start, d_end, totlen, rxstat);
panic(NULL, NULL, NO_NUM);
}
#if 0
printf("d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%x\n",
d_start, d_end, totlen, rxstat);
#endif
if (totlen+4 > amount)
{
printf("rl_readv: packet not yet ready\n");
goto suspend;
}
/* Should subtract the CRC */
packlen= totlen - ETH_CRC_SIZE;
if (vectored)
{
int iov_offset = 0;
size= 0;
o= d_start+4;
src_phys= rep->re_rx_buf;
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
cps = sys_vircopy(re_client, D,
(vir_bytes) mp->DL_ADDR + iov_offset,
SELF, D, (vir_bytes) rep->re_iovec,
n * sizeof(rep->re_iovec[0]));
if (cps != OK)
printf(
"RTL8139: warning, sys_vircopy failed: %d (%d)\n",
cps, __LINE__);
for (j= 0, iovp= rep->re_iovec; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > packlen)
{
assert(packlen > size);
s= packlen-size;
}
if (o >= RX_BUFSIZE)
{
o -= RX_BUFSIZE;
assert(o < RX_BUFSIZE);
}
if (o+s > RX_BUFSIZE)
{
assert(o<RX_BUFSIZE);
s1= RX_BUFSIZE-o;
cps = sys_vircopy(SELF, D,
(vir_bytes) rep->v_re_rx_buf+o,
re_client, D, iovp->iov_addr,
s1);
if (cps != OK)
printf(
"RTL8139: warning, sys_vircopy failed: %d (%d)\n",
cps, __LINE__);
cps = sys_vircopy(SELF, D,
(vir_bytes) rep->v_re_rx_buf,
re_client, D,
iovp->iov_addr+s1, s-s1);
if (cps != OK)
printf(
"RTL8139: warning, sys_vircopy failed: %d (%d)\n",
cps, __LINE__);
}
else
{
cps = sys_vircopy(SELF, D,
(vir_bytes) rep->v_re_rx_buf+o,
re_client, D, iovp->iov_addr,
s);
if (cps != OK)
printf(
"RTL8139: warning, sys_vircopy failed: %d (%d)\n",
cps, __LINE__);
}
size += s;
if (size == packlen)
break;
o += s;
}
if (size == packlen)
break;
}
if (size < packlen)
{
assert(0);
}
}
else
{
assert(0);
#if 0
size= mp->DL_COUNT;
if (size < ETH_MIN_PACK_SIZE || size > ETH_MAX_PACK_SIZE_TAGGED)
panic("rtl8139","invalid packet size", size);
if (OK != sys_umap(re_client, D, (vir_bytes)mp->DL_ADDR, size, &phys_user))
panic("rtl8139","umap_local failed", NO_NUM);
p= rep->re_tx[tx_head].ret_buf;
cps = sys_abscopy(phys_user, p, size);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#endif
}
if (rep->re_clear_rx)
{
/* For some reason the receiver FIFO is not stopped when
* the buffer is full.
*/
#if 0
printf("rl_readv: later buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
rep->re_stat.ets_packetR++;
rep->re_read_s= packlen;
rep->re_flags= (rep->re_flags & ~REF_READING) | REF_PACK_RECV;
/* Avoid overflow in 16-bit computations */
l= d_start;
l += totlen+4;
l= (l+3) & ~3; /* align */
if (l >= RX_BUFSIZE)
{
l -= RX_BUFSIZE;
assert(l < RX_BUFSIZE);
}
rl_outw(port, RL_CAPR, l-RL_CAPR_DATA_OFF);
if (!from_int)
reply(rep, OK, FALSE);
return;
suspend:
if (from_int)
{
assert(rep->re_flags & REF_READING);
/* No need to store any state */
return;
}
rep->re_rx_mess= *mp;
assert(!(rep->re_flags & REF_READING));
rep->re_flags |= REF_READING;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_readv_s *
*===========================================================================*/
static void rl_readv_s(mp, from_int)
message *mp;
int from_int;
{
int i, j, n, o, s, s1, dl_port, re_client, count, size;
port_t port;
unsigned amount, totlen, packlen;
phys_bytes src_phys, dst_phys, iov_src;
u16_t d_start, d_end;
u32_t l, rxstat = 0x12345678;
re_t *rep;
iovec_s_t *iovp;
int cps;
int iov_offset = 0;
dl_port = mp->DL_PORT;
count = mp->DL_COUNT;
if (dl_port < 0 || dl_port >= RE_PORT_NR)
panic("rtl8139"," illegal port", dl_port);
rep= &re_table[dl_port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
if (rep->re_clear_rx)
goto suspend; /* Buffer overflow */
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
port= rep->re_base_port;
/* Assume that the RL_CR_BUFE check was been done by rl_checks_ints
*/
if (!from_int && (rl_inb(port, RL_CR) & RL_CR_BUFE))
{
/* Receive buffer is empty, suspend */
goto suspend;
}
d_start= rl_inw(port, RL_CAPR) + RL_CAPR_DATA_OFF;
d_end= rl_inw(port, RL_CBR) % RX_BUFSIZE;
if (d_start >= RX_BUFSIZE)
{
printf("rl_readv: strange value in RL_CAPR: 0x%x\n",
rl_inw(port, RL_CAPR));
d_start %= RX_BUFSIZE;
}
if (d_end > d_start)
amount= d_end-d_start;
else
amount= d_end+RX_BUFSIZE - d_start;
rxstat = *(u32_t *) (rep->v_re_rx_buf + d_start);
if (rep->re_clear_rx)
{
#if 0
printf("rl_readv: late buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
/* Should convert from little endian to host byte order */
if (!(rxstat & RL_RXS_ROK))
{
printf("rxstat = 0x%08lx\n", rxstat);
printf("d_start: 0x%x, d_end: 0x%x, rxstat: 0x%lx\n",
d_start, d_end, rxstat);
panic("rtl8139","received packet not OK", NO_NUM);
}
totlen= (rxstat >> RL_RXS_LEN_S);
if (totlen < 8 || totlen > 2*ETH_MAX_PACK_SIZE)
{
/* Someting went wrong */
printf(
"rl_readv: bad length (%u) in status 0x%08lx at offset 0x%x\n",
totlen, rxstat, d_start);
printf(
"d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%lx\n",
d_start, d_end, totlen, rxstat);
panic(NULL, NULL, NO_NUM);
}
#if 0
printf("d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%x\n",
d_start, d_end, totlen, rxstat);
#endif
if (totlen+4 > amount)
{
printf("rl_readv: packet not yet ready\n");
goto suspend;
}
/* Should subtract the CRC */
packlen= totlen - ETH_CRC_SIZE;
size= 0;
o= d_start+4;
src_phys= rep->re_rx_buf;
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec_s[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec_s[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
cps = sys_safecopyfrom(re_client, mp->DL_GRANT, iov_offset,
(vir_bytes) rep->re_iovec_s,
n * sizeof(rep->re_iovec_s[0]), D);
if (cps != OK)
{
panic(__FILE__, "rl_readv_s: sys_safecopyfrom failed",
cps);
}
for (j= 0, iovp= rep->re_iovec_s; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > packlen)
{
assert(packlen > size);
s= packlen-size;
}
#if 0
if (sys_umap(re_client, D, iovp->iov_addr, s, &dst_phys) != OK)
panic("rtl8139","umap_local failed\n", NO_NUM);
#endif
if (o >= RX_BUFSIZE)
{
o -= RX_BUFSIZE;
assert(o < RX_BUFSIZE);
}
if (o+s > RX_BUFSIZE)
{
assert(o<RX_BUFSIZE);
s1= RX_BUFSIZE-o;
cps = sys_safecopyto(re_client,
iovp->iov_grant, 0,
(vir_bytes) rep->v_re_rx_buf+o, s1, D);
if (cps != OK)
{
panic(__FILE__,
"rl_readv_s: sys_safecopyto failed",
cps);
}
cps = sys_safecopyto(re_client,
iovp->iov_grant, s1,
(vir_bytes) rep->v_re_rx_buf, s-s1, S);
if (cps != OK)
{
panic(__FILE__,
"rl_readv_s: sys_safecopyto failed",
cps);
}
}
else
{
cps = sys_safecopyto(re_client,
iovp->iov_grant, 0,
(vir_bytes) rep->v_re_rx_buf+o, s, D);
if (cps != OK)
panic(__FILE__,
"rl_readv_s: sys_vircopy failed",
cps);
}
size += s;
if (size == packlen)
break;
o += s;
}
if (size == packlen)
break;
}
if (size < packlen)
{
assert(0);
}
if (rep->re_clear_rx)
{
/* For some reason the receiver FIFO is not stopped when
* the buffer is full.
*/
#if 0
printf("rl_readv: later buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
rep->re_stat.ets_packetR++;
rep->re_read_s= packlen;
rep->re_flags= (rep->re_flags & ~REF_READING) | REF_PACK_RECV;
/* Avoid overflow in 16-bit computations */
l= d_start;
l += totlen+4;
l= (l+3) & ~3; /* align */
if (l >= RX_BUFSIZE)
{
l -= RX_BUFSIZE;
assert(l < RX_BUFSIZE);
}
rl_outw(port, RL_CAPR, l-RL_CAPR_DATA_OFF);
if (!from_int)
reply(rep, OK, FALSE);
return;
suspend:
if (from_int)
{
assert(rep->re_flags & REF_READING);
/* No need to store any state */
return;
}
rep->re_rx_mess= *mp;
assert(!(rep->re_flags & REF_READING));
rep->re_flags |= REF_READING;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_writev *
*===========================================================================*/
static void rl_writev(mp, from_int, vectored)
message *mp;
int from_int;
int vectored;
{
phys_bytes iov_src, phys_user;
int i, j, n, s, port, count, size;
int tx_head, re_client;
re_t *rep;
iovec_t *iovp;
char *ret;
int cps;
port = mp->DL_PORT;
count = mp->DL_COUNT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
if (from_int)
{
assert(rep->re_flags & REF_SEND_AVAIL);
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
rep->re_tx_alive= TRUE;
}
tx_head= rep->re_tx_head;
if (rep->re_tx[tx_head].ret_busy)
{
assert(!(rep->re_flags & REF_SEND_AVAIL));
rep->re_flags |= REF_SEND_AVAIL;
if (rep->re_tx[tx_head].ret_busy)
goto suspend;
/* Race condition, the interrupt handler may clear re_busy
* before we got a chance to set REF_SEND_AVAIL. Checking
* ret_busy twice should be sufficient.
*/
#if 0
printf("rl_writev: race detected\n");
#endif
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
}
assert(!(rep->re_flags & REF_SEND_AVAIL));
assert(!(rep->re_flags & REF_PACK_SENT));
if (vectored)
{
int iov_offset = 0;
size= 0;
ret = rep->re_tx[tx_head].v_ret_buf;
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
cps = sys_vircopy(re_client, D, ((vir_bytes) mp->DL_ADDR) + iov_offset,
SELF, D, (vir_bytes) rep->re_iovec,
n * sizeof(rep->re_iovec[0]));
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d\n", cps);
for (j= 0, iovp= rep->re_iovec; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > ETH_MAX_PACK_SIZE_TAGGED)
{
panic("rtl8139","invalid packet size",
NO_NUM);
}
if (OK != sys_umap(re_client, D, iovp->iov_addr, s, &phys_user))
panic("rtl8139","umap_local failed\n", NO_NUM);
cps = sys_vircopy(re_client, D, iovp->iov_addr,
SELF, D, (vir_bytes) ret, s);
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d\n", cps);
size += s;
ret += s;
}
}
if (size < ETH_MIN_PACK_SIZE)
panic("rtl8139","invalid packet size", size);
}
else
{
size= mp->DL_COUNT;
if (size < ETH_MIN_PACK_SIZE || size > ETH_MAX_PACK_SIZE_TAGGED)
panic("rtl8139","invalid packet size", size);
ret = rep->re_tx[tx_head].v_ret_buf;
cps = sys_vircopy(re_client, D, (vir_bytes)mp->DL_ADDR,
SELF, D, (vir_bytes) ret, size);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
}
rl_outl(rep->re_base_port, RL_TSD0+tx_head*4,
rep->re_ertxth | size);
rep->re_tx[tx_head].ret_busy= TRUE;
if (++tx_head == N_TX_BUF)
tx_head= 0;
assert(tx_head < RL_N_TX);
rep->re_tx_head= tx_head;
rep->re_flags |= REF_PACK_SENT;
/* If the interrupt handler called, don't send a reply. The reply
* will be sent after all interrupts are handled.
*/
if (from_int)
return;
reply(rep, OK, FALSE);
return;
suspend:
#if 0
printf("rl_writev: head %d, tail %d, busy: %d %d %d %d\n",
tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
printf("rl_writev: TSD: 0x%x, 0x%x, 0x%x, 0x%x\n",
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
#endif
if (from_int)
panic("rtl8139","should not be sending\n", NO_NUM);
rep->re_tx_mess= *mp;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_writev_s *
*===========================================================================*/
static void rl_writev_s(mp, from_int)
message *mp;
int from_int;
{
phys_bytes iov_src;
int i, j, n, s, port, count, size;
int tx_head, re_client;
re_t *rep;
iovec_s_t *iovp;
char *ret;
int cps;
int iov_offset = 0;
port = mp->DL_PORT;
count = mp->DL_COUNT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
if (from_int)
{
assert(rep->re_flags & REF_SEND_AVAIL);
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
rep->re_tx_alive= TRUE;
}
tx_head= rep->re_tx_head;
if (rep->re_tx[tx_head].ret_busy)
{
assert(!(rep->re_flags & REF_SEND_AVAIL));
rep->re_flags |= REF_SEND_AVAIL;
if (rep->re_tx[tx_head].ret_busy)
goto suspend;
/* Race condition, the interrupt handler may clear re_busy
* before we got a chance to set REF_SEND_AVAIL. Checking
* ret_busy twice should be sufficient.
*/
#if 0
printf("rl_writev: race detected\n");
#endif
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
}
assert(!(rep->re_flags & REF_SEND_AVAIL));
assert(!(rep->re_flags & REF_PACK_SENT));
size= 0;
ret = rep->re_tx[tx_head].v_ret_buf;
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec_s[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec_s[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
cps = sys_safecopyfrom(re_client, mp->DL_GRANT, iov_offset,
(vir_bytes) rep->re_iovec_s,
n * sizeof(rep->re_iovec_s[0]), D);
if (cps != OK)
{
panic(__FILE__, "rl_writev_s: sys_safecopyfrom failed",
cps);
}
for (j= 0, iovp= rep->re_iovec_s; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > ETH_MAX_PACK_SIZE_TAGGED)
{
panic("rtl8139","invalid packet size",
NO_NUM);
}
cps = sys_safecopyfrom(re_client, iovp->iov_grant, 0,
(vir_bytes) ret, s, D);
if (cps != OK)
{
panic(__FILE__,
"rl_writev_s: sys_safecopyfrom failed",
cps);
}
size += s;
ret += s;
}
}
if (size < ETH_MIN_PACK_SIZE)
panic("rtl8139","invalid packet size", size);
rl_outl(rep->re_base_port, RL_TSD0+tx_head*4,
rep->re_ertxth | size);
rep->re_tx[tx_head].ret_busy= TRUE;
if (++tx_head == N_TX_BUF)
tx_head= 0;
assert(tx_head < RL_N_TX);
rep->re_tx_head= tx_head;
rep->re_flags |= REF_PACK_SENT;
/* If the interrupt handler called, don't send a reply. The reply
* will be sent after all interrupts are handled.
*/
if (from_int)
return;
reply(rep, OK, FALSE);
return;
suspend:
#if 0
printf("rl_writev: head %d, tail %d, busy: %d %d %d %d\n",
tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
printf("rl_writev: TSD: 0x%x, 0x%x, 0x%x, 0x%x\n",
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
#endif
if (from_int)
panic("rtl8139","should not be sending\n", NO_NUM);
rep->re_tx_mess= *mp;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_check_ints *
*===========================================================================*/
static void rl_check_ints(rep)
re_t *rep;
{
#if 0
10-1f R/W TSD[0-3] Transmit Status of Descriptor [0-3]
31 R CRS Carrier Sense Lost
30 R TABT Transmit Abort
29 R OWC Out of Window Collision
27-24 R NCC[3-0] Number of Collision Count
23-22 reserved
21-16 R/W ERTXH[5-0] Early Tx Threshold
15 R TOK Transmit OK
14 R TUN Transmit FIFO Underrun
13 R/W OWN OWN
12-0 R/W SIZE Descriptor Size
3e-3f R/W ISR Interrupt Status Register
6 R/W FOVW Fx FIFO Overflow Interrupt
5 R/W PUN/LinkChg Packet Underrun / Link Change Interrupt
3 R/W TER Transmit Error Interrupt
2 R/W TOK Transmit OK Interrupt
3e-3f R/W ISR Interrupt Status Register
15 R/W SERR System Error Interrupt
14 R/W TimeOut Time Out Interrupt
13 R/W LenChg Cable Length Change Interrupt
3e-3f R/W ISR Interrupt Status Register
4 R/W RXOVW Rx Buffer Overflow Interrupt
1 R/W RER Receive Error Interrupt
0 R/W ROK Receive OK Interrupt
4c-4f R/W MPC Missed Packet Counter
60-61 R TSAD Transmit Status of All Descriptors
15-12 R TOK[3-0] TOK bit of Descriptor [3-0]
11-8 R TUN[3-0] TUN bit of Descriptor [3-0]
7-4 R TABT[3-0] TABT bit of Descriptor [3-0]
3-0 R OWN[3-0] OWN bit of Descriptor [3-0]
6c-6d R DIS Disconnect Counter
15-0 R DCNT Disconnect Counter
6e-6f R FCSC False Carrier Sense Counter
15-0 R FCSCNT False Carrier event counter
72-73 R REC RX_ER Counter
15-0 R RXERCNT Received packet counter
#endif
int re_flags;
re_flags= rep->re_flags;
if ((re_flags & REF_READING) &&
!(rl_inb(rep->re_base_port, RL_CR) & RL_CR_BUFE))
{
if (rep->re_rx_mess.m_type == DL_READV)
{
rl_readv(&rep->re_rx_mess, TRUE /* from int */,
TRUE /* vectored */);
}
else if (rep->re_rx_mess.m_type == DL_READV_S)
{
rl_readv_s(&rep->re_rx_mess, TRUE /* from int */);
}
else
{
assert(rep->re_rx_mess.m_type == DL_READ);
rl_readv(&rep->re_rx_mess, TRUE /* from int */,
FALSE /* !vectored */);
}
}
if (rep->re_clear_rx)
rl_clear_rx(rep);
if (rep->re_need_reset)
rl_do_reset(rep);
if (rep->re_send_int)
{
if (rep->re_tx_mess.m_type == DL_WRITEV)
{
rl_writev(&rep->re_tx_mess, TRUE /* from int */,
TRUE /* vectored */);
}
else
{
assert(rep->re_tx_mess.m_type == DL_WRITE);
rl_writev(&rep->re_tx_mess, TRUE /* from int */,
FALSE /* !vectored */);
}
}
if (rep->re_report_link)
rl_report_link(rep);
if (rep->re_flags & (REF_PACK_SENT | REF_PACK_RECV))
reply(rep, OK, TRUE);
}
/*===========================================================================*
* rl_report_link *
*===========================================================================*/
static void rl_report_link(rep)
re_t *rep;
{
port_t port;
u16_t mii_ctrl, mii_status, mii_ana, mii_anlpa, mii_ane, mii_extstat;
u8_t msr;
int f, link_up;
rep->re_report_link= FALSE;
port= rep->re_base_port;
msr= rl_inb(port, RL_MSR);
link_up= !(msr & RL_MSR_LINKB);
rep->re_link_up= link_up;
if (!link_up)
{
printf("%s: link down\n", rep->re_name);
return;
}
mii_ctrl= rl_inw(port, RL_BMCR);
mii_status= rl_inw(port, RL_BMSR);
mii_ana= rl_inw(port, RL_ANAR);
mii_anlpa= rl_inw(port, RL_ANLPAR);
mii_ane= rl_inw(port, RL_ANER);
mii_extstat= 0;
if (mii_ctrl & (MII_CTRL_LB|MII_CTRL_PD|MII_CTRL_ISO))
{
printf("%s: PHY: ", rep->re_name);
f= 1;
if (mii_ctrl & MII_CTRL_LB)
{
printf("loopback mode");
f= 0;
}
if (mii_ctrl & MII_CTRL_PD)
{
if (!f) printf(", ");
f= 0;
printf("powered down");
}
if (mii_ctrl & MII_CTRL_ISO)
{
if (!f) printf(", ");
f= 0;
printf("isolated");
}
printf("\n");
return;
}
if (!(mii_ctrl & MII_CTRL_ANE))
{
printf("%s: manual config: ", rep->re_name);
switch(mii_ctrl & (MII_CTRL_SP_LSB|MII_CTRL_SP_MSB))
{
case MII_CTRL_SP_10: printf("10 Mbps"); break;
case MII_CTRL_SP_100: printf("100 Mbps"); break;
case MII_CTRL_SP_1000: printf("1000 Mbps"); break;
case MII_CTRL_SP_RES: printf("reserved speed"); break;
}
if (mii_ctrl & MII_CTRL_DM)
printf(", full duplex");
else
printf(", half duplex");
printf("\n");
return;
}
if (!debug) goto resspeed;
printf("%s: ", rep->re_name);
mii_print_stat_speed(mii_status, mii_extstat);
printf("\n");
if (!(mii_status & MII_STATUS_ANC))
printf("%s: auto-negotiation not complete\n", rep->re_name);
if (mii_status & MII_STATUS_RF)
printf("%s: remote fault detected\n", rep->re_name);
if (!(mii_status & MII_STATUS_ANA))
{
printf("%s: local PHY has no auto-negotiation ability\n",
rep->re_name);
}
if (!(mii_status & MII_STATUS_LS))
printf("%s: link down\n", rep->re_name);
if (mii_status & MII_STATUS_JD)
printf("%s: jabber condition detected\n", rep->re_name);
if (!(mii_status & MII_STATUS_EC))
{
printf("%s: no extended register set\n", rep->re_name);
goto resspeed;
}
if (!(mii_status & MII_STATUS_ANC))
goto resspeed;
printf("%s: local cap.: ", rep->re_name);
mii_print_techab(mii_ana);
printf("\n");
if (mii_ane & MII_ANE_PDF)
printf("%s: parallel detection fault\n", rep->re_name);
if (!(mii_ane & MII_ANE_LPANA))
{
printf("%s: link-partner does not support auto-negotiation\n",
rep->re_name);
goto resspeed;
}
printf("%s: remote cap.: ", rep->re_name);
mii_print_techab(mii_anlpa);
printf("\n");
resspeed:
printf("%s: ", rep->re_name);
printf("link up at %d Mbps, ", (msr & RL_MSR_SPEED_10) ? 10 : 100);
printf("%s duplex\n", ((mii_ctrl & MII_CTRL_DM) ? "full" : "half"));
}
static void mii_print_techab(techab)
u16_t techab;
{
int fs, ft;
if ((techab & MII_ANA_SEL_M) != MII_ANA_SEL_802_3)
{
printf("strange selector 0x%x, value 0x%x",
techab & MII_ANA_SEL_M,
(techab & MII_ANA_TAF_M) >> MII_ANA_TAF_S);
return;
}
fs= 1;
if (techab & (MII_ANA_100T4 | MII_ANA_100TXFD | MII_ANA_100TXHD))
{
printf("100 Mbps: ");
fs= 0;
ft= 1;
if (techab & MII_ANA_100T4)
{
printf("T4");
ft= 0;
}
if (techab & (MII_ANA_100TXFD | MII_ANA_100TXHD))
{
if (!ft)
printf(", ");
ft= 0;
printf("TX-");
switch(techab & (MII_ANA_100TXFD|MII_ANA_100TXHD))
{
case MII_ANA_100TXFD: printf("FD"); break;
case MII_ANA_100TXHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
if (techab & (MII_ANA_10TFD | MII_ANA_10THD))
{
if (!fs)
printf(", ");
printf("10 Mbps: ");
fs= 0;
printf("T-");
switch(techab & (MII_ANA_10TFD|MII_ANA_10THD))
{
case MII_ANA_10TFD: printf("FD"); break;
case MII_ANA_10THD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (techab & MII_ANA_PAUSE_SYM)
{
if (!fs)
printf(", ");
fs= 0;
printf("pause(SYM)");
}
if (techab & MII_ANA_PAUSE_ASYM)
{
if (!fs)
printf(", ");
fs= 0;
printf("pause(ASYM)");
}
if (techab & MII_ANA_TAF_RES)
{
if (!fs)
printf(", ");
fs= 0;
printf("0x%x", (techab & MII_ANA_TAF_RES) >> MII_ANA_TAF_S);
}
}
static void mii_print_stat_speed(stat, extstat)
u16_t stat;
u16_t extstat;
{
int fs, ft;
fs= 1;
if (stat & MII_STATUS_EXT_STAT)
{
if (extstat & (MII_ESTAT_1000XFD | MII_ESTAT_1000XHD |
MII_ESTAT_1000TFD | MII_ESTAT_1000THD))
{
printf("1000 Mbps: ");
fs= 0;
ft= 1;
if (extstat & (MII_ESTAT_1000XFD | MII_ESTAT_1000XHD))
{
ft= 0;
printf("X-");
switch(extstat &
(MII_ESTAT_1000XFD|MII_ESTAT_1000XHD))
{
case MII_ESTAT_1000XFD: printf("FD"); break;
case MII_ESTAT_1000XHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (extstat & (MII_ESTAT_1000TFD | MII_ESTAT_1000THD))
{
if (!ft)
printf(", ");
ft= 0;
printf("T-");
switch(extstat &
(MII_ESTAT_1000TFD|MII_ESTAT_1000THD))
{
case MII_ESTAT_1000TFD: printf("FD"); break;
case MII_ESTAT_1000THD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
}
if (stat & (MII_STATUS_100T4 |
MII_STATUS_100XFD | MII_STATUS_100XHD |
MII_STATUS_100T2FD | MII_STATUS_100T2HD))
{
if (!fs)
printf(", ");
fs= 0;
printf("100 Mbps: ");
ft= 1;
if (stat & MII_STATUS_100T4)
{
printf("T4");
ft= 0;
}
if (stat & (MII_STATUS_100XFD | MII_STATUS_100XHD))
{
if (!ft)
printf(", ");
ft= 0;
printf("TX-");
switch(stat & (MII_STATUS_100XFD|MII_STATUS_100XHD))
{
case MII_STATUS_100XFD: printf("FD"); break;
case MII_STATUS_100XHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (stat & (MII_STATUS_100T2FD | MII_STATUS_100T2HD))
{
if (!ft)
printf(", ");
ft= 0;
printf("T2-");
switch(stat & (MII_STATUS_100T2FD|MII_STATUS_100T2HD))
{
case MII_STATUS_100T2FD: printf("FD"); break;
case MII_STATUS_100T2HD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
if (stat & (MII_STATUS_10FD | MII_STATUS_10HD))
{
if (!fs)
printf(", ");
printf("10 Mbps: ");
fs= 0;
printf("T-");
switch(stat & (MII_STATUS_10FD|MII_STATUS_10HD))
{
case MII_STATUS_10FD: printf("FD"); break;
case MII_STATUS_10HD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
/*===========================================================================*
* rl_clear_rx *
*===========================================================================*/
static void rl_clear_rx(rep)
re_t *rep;
{
port_t port;
u8_t cr;
int i;
clock_t t0,t1;
rep->re_clear_rx= FALSE;
port= rep->re_base_port;
/* Reset the receiver */
cr= rl_inb(port, RL_CR);
cr &= ~RL_CR_RE;
rl_outb(port, RL_CR, cr);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_RE))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_CR) & RL_CR_RE)
panic("rtl8139","cannot disable receiver", NO_NUM);
#if 0
printf("RBSTART = 0x%08x\n", rl_inl(port, RL_RBSTART));
printf("CAPR = 0x%04x\n", rl_inw(port, RL_CAPR));
printf("CBR = 0x%04x\n", rl_inw(port, RL_CBR));
printf("RCR = 0x%08x\n", rl_inl(port, RL_RCR));
#endif
rl_outb(port, RL_CR, cr | RL_CR_RE);
rl_outl(port, RL_RCR, RX_BUFBITS);
rl_rec_mode(rep);
rep->re_stat.ets_missedP++;
}
/*===========================================================================*
* rl_do_reset *
*===========================================================================*/
static void rl_do_reset(rep)
re_t *rep;
{
rep->re_need_reset= FALSE;
rl_reset_hw(rep);
rl_rec_mode(rep);
rep->re_tx_head= 0;
if (rep->re_flags & REF_SEND_AVAIL)
{
rep->re_tx[rep->re_tx_head].ret_busy= FALSE;
rep->re_send_int= TRUE;
}
}
/*===========================================================================*
* rl_getstat *
*===========================================================================*/
static void rl_getstat(mp)
message *mp;
{
int r, port;
eth_stat_t stats;
re_t *rep;
port = mp->DL_PORT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
rep->re_client= mp->DL_PROC;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
stats= rep->re_stat;
r = sys_datacopy(SELF, (vir_bytes) &stats, mp->DL_PROC,
(vir_bytes) mp->DL_ADDR, sizeof(stats));
if (r != OK)
panic(__FILE__, "rl_getstat: sys_datacopy failed", r);
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_getstat_s *
*===========================================================================*/
static void rl_getstat_s(mp)
message *mp;
{
int r, port;
eth_stat_t stats;
re_t *rep;
port = mp->DL_PORT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
rep->re_client= mp->DL_PROC;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
stats= rep->re_stat;
r = sys_safecopyto(mp->DL_PROC, mp->DL_GRANT, 0,
(vir_bytes) &stats, sizeof(stats), D);
if (r != OK)
panic(__FILE__, "rl_getstat_s: sys_safecopyto failed", r);
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_getname *
*===========================================================================*/
static void rl_getname(mp)
message *mp;
{
int r;
strncpy(mp->DL_NAME, progname, sizeof(mp->DL_NAME));
mp->DL_NAME[sizeof(mp->DL_NAME)-1]= '\0';
mp->m_type= DL_NAME_REPLY;
r= send(mp->m_source, mp);
if (r != OK)
panic("RTL8139", "rl_getname: send failed: %d\n", r);
}
/*===========================================================================*
* reply *
*===========================================================================*/
static void reply(rep, err, may_block)
re_t *rep;
int err;
int may_block;
{
message reply;
int status;
int r;
clock_t now;
status = 0;
if (rep->re_flags & REF_PACK_SENT)
status |= DL_PACK_SEND;
if (rep->re_flags & REF_PACK_RECV)
status |= DL_PACK_RECV;
reply.m_type = DL_TASK_REPLY;
reply.DL_PORT = rep - re_table;
reply.DL_PROC = rep->re_client;
reply.DL_STAT = status | ((u32_t) err << 16);
reply.DL_COUNT = rep->re_read_s;
if (OK != (r = getuptime(&now)))
panic("rtl8139","getuptime() failed:", r);
reply.DL_CLCK = now;
r= send(rep->re_client, &reply);
if (r == ELOCKED && may_block)
{
#if 0
printW(); printf("send locked\n");
#endif
return;
}
if (r < 0) {
printf("RTL8139 tried sending to %d, type %d\n", rep->re_client, reply.m_type);
panic("rtl8139","send failed:", r);
}
rep->re_read_s = 0;
rep->re_flags &= ~(REF_PACK_SENT | REF_PACK_RECV);
}
/*===========================================================================*
* mess_reply *
*===========================================================================*/
static void mess_reply(req, reply_mess)
message *req;
message *reply_mess;
{
if (send(req->m_source, reply_mess) != OK)
panic("rtl8139","unable to mess_reply", NO_NUM);
}
#if 0
static void dump_phy(rep)
re_t *rep;
{
port_t port;
u32_t t;
port= rep->re_base_port;
t= rl_inb(port, RL_MSR);
printf("MSR: 0x%02lx\n", t);
if (t & RL_MSR_SPEED_10)
printf("\t10 Mbps\n");
if (t & RL_MSR_LINKB)
printf("\tLink failed\n");
t= rl_inb(port, RL_CONFIG1);
printf("CONFIG1: 0x%02lx\n", t);
t= rl_inb(port, RL_CONFIG3);
printf("CONFIG3: 0x%02lx\n", t);
t= rl_inb(port, RL_CONFIG4);
printf("CONFIG4: 0x%02lx\n", t);
t= rl_inw(port, RL_BMCR);
printf("BMCR (MII_CTRL): 0x%04lx\n", t);
t= rl_inw(port, RL_BMSR);
printf("BMSR:");
if (t & MII_STATUS_100T4)
printf(" 100Base-T4");
if (t & MII_STATUS_100XFD)
printf(" 100Base-X-FD");
if (t & MII_STATUS_100XHD)
printf(" 100Base-X-HD");
if (t & MII_STATUS_10FD)
printf(" 10Mbps-FD");
if (t & MII_STATUS_10HD)
printf(" 10Mbps-HD");
if (t & MII_STATUS_100T2FD)
printf(" 100Base-T2-FD");
if (t & MII_STATUS_100T2HD)
printf(" 100Base-T2-HD");
if (t & MII_STATUS_EXT_STAT)
printf(" Ext-stat");
if (t & MII_STATUS_RES)
printf(" res-0x%lx", t & MII_STATUS_RES);
if (t & MII_STATUS_MFPS)
printf(" MFPS");
if (t & MII_STATUS_ANC)
printf(" ANC");
if (t & MII_STATUS_RF)
printf(" remote-fault");
if (t & MII_STATUS_ANA)
printf(" ANA");
if (t & MII_STATUS_LS)
printf(" Link");
if (t & MII_STATUS_JD)
printf(" Jabber");
if (t & MII_STATUS_EC)
printf(" Extended-capability");
printf("\n");
t= rl_inw(port, RL_ANAR);
printf("ANAR (MII_ANA): 0x%04lx\n", t);
t= rl_inw(port, RL_ANLPAR);
printf("ANLPAR: 0x%04lx\n", t);
t= rl_inw(port, RL_ANER);
printf("ANER (MII_ANE): ");
if (t & MII_ANE_RES)
printf(" res-0x%lx", t & MII_ANE_RES);
if (t & MII_ANE_PDF)
printf(" Par-Detect-Fault");
if (t & MII_ANE_LPNPA)
printf(" LP-Next-Page-Able");
if (t & MII_ANE_NPA)
printf(" Loc-Next-Page-Able");
if (t & MII_ANE_PR)
printf(" Page-Received");
if (t & MII_ANE_LPANA)
printf(" LP-Auto-Neg-Able");
printf("\n");
t= rl_inw(port, RL_NWAYTR);
printf("NWAYTR: 0x%04lx\n", t);
t= rl_inw(port, RL_CSCR);
printf("CSCR: 0x%04lx\n", t);
t= rl_inb(port, RL_CONFIG5);
printf("CONFIG5: 0x%02lx\n", t);
}
#endif
static int do_hard_int(void)
{
int i,s;
for (i=0; i < RE_PORT_NR; i ++) {
/* Run interrupt handler at driver level. */
rl_handler( &re_table[i]);
/* Reenable interrupts for this hook. */
if ((s=sys_irqenable(&re_table[i].re_hook_id)) != OK)
printf("RTL8139: error, couldn't enable interrupts: %d\n", s);
}
}
/*===========================================================================*
* rl_handler *
*===========================================================================*/
static int rl_handler(rep)
re_t *rep;
{
int i, port, tx_head, tx_tail, link_up;
u16_t isr, tsad;
u32_t tsd, tcr, ertxth;
#if 0
u8_t cr;
#endif
clock_t t0,t1;
int_event_check = FALSE; /* disable check by default */
port= rep->re_base_port;
/* Ack interrupt */
isr= rl_inw(port, RL_ISR);
rl_outw(port, RL_ISR, isr);
if (isr & RL_IMR_FOVW)
{
isr &= ~RL_IMR_FOVW;
/* Should do anything? */
rep->re_stat.ets_fifoOver++;
}
if (isr & RL_IMR_PUN)
{
isr &= ~RL_IMR_PUN;
/* Either the link status changed or there was a TX fifo
* underrun.
*/
link_up= !(rl_inb(port, RL_MSR) & RL_MSR_LINKB);
if (link_up != rep->re_link_up)
{
rep->re_report_link= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
if (isr & RL_IMR_RXOVW)
{
isr &= ~RL_IMR_RXOVW;
/* Clear the receive buffer */
rep->re_clear_rx= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
if (isr & (RL_ISR_RER | RL_ISR_ROK))
{
isr &= ~(RL_ISR_RER | RL_ISR_ROK);
if (!rep->re_got_int && (rep->re_flags & REF_READING))
{
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
#if 0
if ((isr & (RL_ISR_TER | RL_ISR_TOK)) &&
(rep->re_flags & REF_SEND_AVAIL) &&
(rep->re_tx[0].ret_busy || rep->re_tx[1].ret_busy ||
rep->re_tx[2].ret_busy || rep->re_tx[3].ret_busy))
{
printf(
"rl_handler, SEND_AVAIL: tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
printf(
"rl_handler: TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(port, RL_TSAD),
rl_inl(port, RL_TSD0+0*4),
rl_inl(port, RL_TSD0+1*4),
rl_inl(port, RL_TSD0+2*4),
rl_inl(port, RL_TSD0+3*4));
}
#endif
if ((isr & (RL_ISR_TER | RL_ISR_TOK)) || 1)
{
isr &= ~(RL_ISR_TER | RL_ISR_TOK);
tsad= rl_inw(port, RL_TSAD);
if (tsad & (RL_TSAD_TABT0|RL_TSAD_TABT1|
RL_TSAD_TABT2|RL_TSAD_TABT3))
{
#if 0
/* Do we need a watch dog? */
/* Just reset the whole chip */
rep->re_need_reset= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
#elif 0
/* Reset transmitter */
rep->re_stat.ets_transAb++;
cr= rl_inb(port, RL_CR);
cr &= ~RL_CR_TE;
rl_outb(port, RL_CR, cr);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_TE))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_CR) & RL_CR_TE)
{
panic("rtl8139","cannot disable transmitter",
NO_NUM);
}
rl_outb(port, RL_CR, cr | RL_CR_TE);
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_IFG_STD);
printf("rl_handler: reset after abort\n");
if (rep->re_flags & REF_SEND_AVAIL)
{
printf("rl_handler: REF_SEND_AVAIL\n");
rep->re_send_int= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
for (i= 0; i< N_TX_BUF; i++)
rep->re_tx[i].ret_busy= FALSE;
rep->re_tx_head= 0;
#else
printf("rl_handler, TABT, tasd = 0x%04x\n",
tsad);
/* Find the aborted transmit request */
for (i= 0; i< N_TX_BUF; i++)
{
tsd= rl_inl(port, RL_TSD0+i*4);
if (tsd & RL_TSD_TABT)
break;
}
if (i >= N_TX_BUF)
{
printf(
"rl_handler: can't find aborted TX req.\n");
}
else
{
printf("TSD%d = 0x%04lx\n", i, tsd);
/* Set head and tail to this buffer */
rep->re_tx_head= rep->re_tx_tail= i;
}
/* Aborted transmission, just kick the device
* and be done with it.
*/
rep->re_stat.ets_transAb++;
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_CLRABT);
#endif
}
/* Transmit completed */
tx_head= rep->re_tx_head;
tx_tail= rep->re_tx_tail;
for (i= 0; i< 2*N_TX_BUF; i++)
{
if (!rep->re_tx[tx_tail].ret_busy)
{
/* Strange, this buffer is not in-use.
* Increment tx_tail until tx_head is
* reached (or until we find a buffer that
* is in-use.
*/
if (tx_tail == tx_head)
break;
if (++tx_tail >= N_TX_BUF)
tx_tail= 0;
assert(tx_tail < RL_N_TX);
rep->re_tx_tail= tx_tail;
continue;
}
tsd= rl_inl(port, RL_TSD0+tx_tail*4);
if (!(tsd & RL_TSD_OWN))
{
/* Buffer is not yet ready */
break;
}
/* Should collect statistics */
if (tsd & RL_TSD_CRS)
rep->re_stat.ets_carrSense++;
if (tsd & RL_TSD_TABT)
{
printf("rl_handler, TABT, TSD%d = 0x%04lx\n",
tx_tail, tsd);
assert(0); /* CLRABT is not all that
* effective, why not?
*/
rep->re_stat.ets_transAb++;
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_CLRABT);
}
if (tsd & RL_TSD_OWC)
rep->re_stat.ets_OWC++;
if (tsd & RL_TSD_CDH)
rep->re_stat.ets_CDheartbeat++;
/* What about collisions? */
if (tsd & RL_TSD_TOK)
rep->re_stat.ets_packetT++;
else
rep->re_stat.ets_sendErr++;
if (tsd & RL_TSD_TUN)
{
rep->re_stat.ets_fifoUnder++;
/* Increase ERTXTH */
ertxth= tsd + (1 << RL_TSD_ERTXTH_S);
ertxth &= RL_TSD_ERTXTH_M;
if (debug && ertxth > rep->re_ertxth)
{
printf("%s: new ertxth: %ld bytes\n",
rep->re_name,
(ertxth >> RL_TSD_ERTXTH_S) *
32);
rep->re_ertxth= ertxth;
}
}
rep->re_tx[tx_tail].ret_busy= FALSE;
#if 0
if (rep->re_flags & REF_SEND_AVAIL)
{
printf("TSD%d: %08lx\n", tx_tail, tsd);
printf(
"rl_handler: head %d, tail %d, busy: %d %d %d %d\n",
tx_head, tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
}
#endif
if (++tx_tail >= N_TX_BUF)
tx_tail= 0;
assert(tx_tail < RL_N_TX);
rep->re_tx_tail= tx_tail;
if (rep->re_flags & REF_SEND_AVAIL)
{
#if 0
printf("rl_handler: REF_SEND_AVAIL\n");
#endif
rep->re_send_int= TRUE;
if (!rep->re_got_int)
{
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
}
assert(i < 2*N_TX_BUF);
}
if (isr)
{
printf("rl_handler: unhandled interrupt: isr = 0x%04x\n",
isr);
}
return 1;
}
/*===========================================================================*
* rl_watchdog_f *
*===========================================================================*/
static void rl_watchdog_f(tp)
timer_t *tp;
{
int i;
re_t *rep;
/* Use a synchronous alarm instead of a watchdog timer. */
sys_setalarm(HZ, 0);
for (i= 0, rep = &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
if (!(rep->re_flags & REF_SEND_AVAIL))
{
/* Assume that an idle system is alive */
rep->re_tx_alive= TRUE;
continue;
}
if (rep->re_tx_alive)
{
rep->re_tx_alive= FALSE;
continue;
}
printf("rl_watchdog_f: resetting port %d\n", i);
printf(
"TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(rep->re_base_port, RL_TSAD),
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
printf("tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
rep->re_need_reset= TRUE;
rep->re_got_int= TRUE;
check_int_events();
}
}
#if 0
_PROTOTYPE( static void rtl_init, (struct dpeth *dep) );
_PROTOTYPE( static u16_t get_ee_word, (dpeth_t *dep, int a) );
_PROTOTYPE( static void ee_wen, (dpeth_t *dep) );
_PROTOTYPE( static void set_ee_word, (dpeth_t *dep, int a, U16_t w) );
_PROTOTYPE( static void ee_wds, (dpeth_t *dep) );
static void rtl_init(dep)
dpeth_t *dep;
{
u8_t reg_a, reg_b, cr, config0, config2, config3;
int i;
char val[128];
printf("rtl_init called\n");
ne_init(dep);
/* ID */
outb_reg0(dep, DP_CR, CR_PS_P0);
reg_a = inb_reg0(dep, DP_DUM1);
reg_b = inb_reg0(dep, DP_DUM2);
printf("rtl_init: '%c', '%c'\n", reg_a, reg_b);
outb_reg0(dep, DP_CR, CR_PS_P3);
config0 = inb_reg3(dep, 3);
config2 = inb_reg3(dep, 5);
config3 = inb_reg3(dep, 6);
outb_reg0(dep, DP_CR, CR_PS_P0);
printf("rtl_init: config 0/2/3 = %x/%x/%x\n",
config0, config2, config3);
if (0 == sys_getkenv("RTL8029FD",9+1, val, sizeof(val)))
{
printf("rtl_init: setting full-duplex mode\n");
outb_reg0(dep, DP_CR, CR_PS_P3);
cr= inb_reg3(dep, 1);
outb_reg3(dep, 1, cr | 0xc0);
outb_reg3(dep, 6, config3 | 0x40);
config3 = inb_reg3(dep, 6);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 5, config2 | 0x20);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 1, cr);
outb_reg0(dep, DP_CR, CR_PS_P0);
printf("rtl_init: config 2 = %x\n", config2);
printf("rtl_init: config 3 = %x\n", config3);
}
for (i= 0; i<64; i++)
printf("%x ", get_ee_word(dep, i));
printf("\n");
if (0 == sys_getkenv("RTL8029MN",9+1, val, sizeof(val)))
{
ee_wen(dep);
set_ee_word(dep, 0x78/2, 0x10ec);
set_ee_word(dep, 0x7A/2, 0x8029);
set_ee_word(dep, 0x7C/2, 0x10ec);
set_ee_word(dep, 0x7E/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x78/2) == 0x10ec);
assert(get_ee_word(dep, 0x7A/2) == 0x8029);
assert(get_ee_word(dep, 0x7C/2) == 0x10ec);
assert(get_ee_word(dep, 0x7E/2) == 0x8029);
}
if (0 == sys_getkenv("RTL8029XXX",10+1, val, sizeof(val)))
{
ee_wen(dep);
set_ee_word(dep, 0x76/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x76/2) == 0x8029);
}
}
static u16_t get_ee_word(dep, a)
dpeth_t *dep;
int a;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x180 | (a & 0x3f); /* 1 1 0 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
w= 0;
for (i= 0; i<16; i++)
{
w <<= 1;
/* Data is shifted out on the rising edge. Read at the
* falling edge.
*/
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4);
outb_reg3(dep, 1, 0x80 | 0x8 | b);
b= inb_reg3(dep, 1);
w |= (b & 1);
}
outb_reg3(dep, 1, 0x80); /* drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
return w;
}
static void ee_wen(dep)
dpeth_t *dep;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x130; /* 1 0 0 1 1 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
/* micro_delay(1); */ /* Is this required? */
}
static void set_ee_word(dep, a, w)
dpeth_t *dep;
int a;
u16_t w;
{
int b, i, cmd;
clock_t t0, t1;
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
cmd= 0x140 | (a & 0x3f); /* 1 0 1 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
for (i= 15; i >= 0; i--)
{
b= (w & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of data */
outb_reg3(dep, 1, 0x80); /* Drop CS */
/* micro_delay(1); */ /* Is this required? */
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
getuptime(&t0);
do {
if (inb_reg3(dep, 1) & 1)
break;
} while (getuptime(&t1) == OK && (t1 == t0));
if (!(inb_reg3(dep, 1) & 1))
panic("set_ee_word","device remains busy", NO_NUM);
}
static void ee_wds(dep)
dpeth_t *dep;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x100; /* 1 0 0 0 0 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
}
#endif
/*
* $PchId: rtl8139.c,v 1.3 2003/09/11 14:15:15 philip Exp $
*/
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