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Deal with crashing ethernet drivers

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This commit is contained in:
Philip Homburg 2005-10-21 16:51:21 +00:00
parent f8edaa7de4
commit ad1f30a63f
3 changed files with 80 additions and 51 deletions
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7
servers/inet/generic/eth.c
View File

@ -342,7 +342,12 @@ ioreq_t req;
{
result= eth_get_stat(eth_port,
&ethstat->nwes_stat);
assert (result == 0);
if (result != NW_OK)
{
bf_afree(acc);
reply_thr_put(eth_fd, result, TRUE);
return NW_OK;
}
}
else
{

123
servers/inet/mnx_eth.c
View File

@ -73,8 +73,14 @@ PUBLIC void osdep_eth_init()
continue;
}
if (receive(eth_port->etp_osdep.etp_task, &mess)<0)
ip_panic(("unable to receive"));
r= receive(eth_port->etp_osdep.etp_task, &mess);
if (r<0)
{
printf(
"osdep_eth_init: unable to receive from ethernet task, error= %d\n",
r);
continue;
}
if (mess.m3_i1 == ENXIO)
{
@ -217,7 +223,7 @@ acc_t *pack;
for (;;)
{
r= send (eth_port->etp_osdep.etp_task, &mess1);
r= sendrec(eth_port->etp_osdep.etp_task, &mess1);
if (r != ELOCKED)
break;
@ -256,11 +262,11 @@ acc_t *pack;
}
if (r < 0)
ip_panic(("unable to send"));
r= receive(eth_port->etp_osdep.etp_task, &mess1);
if (r < 0)
ip_panic(("unable to receive"));
{
printf("eth_write_port: sendrec to %d failed: %d\n",
eth_port->etp_osdep.etp_task, r);
return;
}
assert(mess1.m_type == DL_TASK_REPLY &&
mess1.DL_PORT == eth_port->etp_osdep.etp_port &&
@ -396,7 +402,7 @@ PUBLIC int eth_get_stat(eth_port, eth_stat)
eth_port_t *eth_port;
eth_stat_t *eth_stat;
{
int result;
int r;
message mess, mlocked;
assert(!eth_port->etp_vlan);
@ -408,29 +414,31 @@ eth_stat_t *eth_stat;
for (;;)
{
result= send(eth_port->etp_osdep.etp_task, &mess);
if (result != ELOCKED)
r= sendrec(eth_port->etp_osdep.etp_task, &mess);
if (r != ELOCKED)
break;
result= receive(eth_port->etp_osdep.etp_task, &mlocked);
assert(result == OK);
r= receive(eth_port->etp_osdep.etp_task, &mlocked);
assert(r == OK);
compare(mlocked.m_type, ==, DL_TASK_REPLY);
eth_rec(&mlocked);
}
assert(result == OK);
result= receive(eth_port->etp_osdep.etp_task, &mess);
assert(result == OK);
if (r != OK)
{
printf("eth_get_stat: sendrec to %d failed: %d\n",
eth_port->etp_osdep.etp_task, r);
return EIO;
}
assert(mess.m_type == DL_TASK_REPLY);
result= mess.DL_STAT >> 16;
assert (result == 0);
r= mess.DL_STAT >> 16;
assert (r == 0);
if (mess.DL_STAT)
{
#if DEBUG
{ where(); printf("calling eth_rec()\n"); }
#endif
eth_rec(&mess);
}
return OK;
@ -440,12 +448,13 @@ PUBLIC void eth_set_rec_conf (eth_port, flags)
eth_port_t *eth_port;
u32_t flags;
{
int result;
int r;
unsigned dl_flags;
message mess, repl_mess;
assert(!eth_port->etp_vlan);
eth_port->etp_osdep.etp_recvconf= flags;
dl_flags= DL_NOMODE;
if (flags & NWEO_EN_BROAD)
dl_flags |= DL_BROAD_REQ;
@ -458,12 +467,11 @@ u32_t flags;
mess.DL_PORT= eth_port->etp_osdep.etp_port;
mess.DL_PROC= this_proc;
mess.DL_MODE= dl_flags;
eth_port->etp_osdep.etp_dl_flags= dl_flags;
do
{
result= send (eth_port->etp_osdep.etp_task, &mess);
if (result == ELOCKED) /* etp_task is sending to this task,
r= sendrec(eth_port->etp_osdep.etp_task, &mess);
if (r == ELOCKED) /* etp_task is sending to this task,
I hope */
{
if (receive (eth_port->etp_osdep.etp_task,
@ -475,20 +483,20 @@ u32_t flags;
compare(repl_mess.m_type, ==, DL_TASK_REPLY);
eth_rec(&repl_mess);
}
} while (result == ELOCKED);
} while (r == ELOCKED);
if (result < 0)
ip_panic(("unable to send(%d)", result));
if (r < 0)
{
printf("eth_set_rec_conf: sendrec to %d failed: %d\n",
eth_port->etp_osdep.etp_task, r);
return;
}
if (receive (eth_port->etp_osdep.etp_task, &repl_mess) < 0)
ip_panic(("unable to receive"));
assert (repl_mess.m_type == DL_INIT_REPLY);
if (repl_mess.m3_i1 != eth_port->etp_osdep.etp_port)
assert (mess.m_type == DL_INIT_REPLY);
if (mess.m3_i1 != eth_port->etp_osdep.etp_port)
{
ip_panic(("got reply for wrong port"));
}
eth_port->etp_osdep.etp_recvconf= flags;
}
PRIVATE void write_int(eth_port)
@ -580,7 +588,7 @@ eth_port_t *eth_port;
printf("eth%d: sending DL_READV\n",
mess1.DL_PORT);
}
r= send (eth_port->etp_osdep.etp_task, &mess1);
r= sendrec(eth_port->etp_osdep.etp_task, &mess1);
if (r != ELOCKED)
break;
@ -622,11 +630,13 @@ eth_port_t *eth_port;
}
if (r < 0)
ip_panic(("unable to send"));
r= receive (eth_port->etp_osdep.etp_task, &mess1);
if (r < 0)
ip_panic(("unable to receive"));
{
printf("mnx_eth`setup_read: sendrec to %d failed: %d\n",
eth_port->etp_osdep.etp_task, r);
eth_port->etp_rd_pack= pack;
eth_port->etp_flags |= EPF_READ_IP;
continue;
}
assert (mess1.m_type == DL_TASK_REPLY &&
mess1.DL_PORT == mess1.DL_PORT &&
@ -737,6 +747,7 @@ eth_port_t *eth_port;
int tasknr;
{
int r;
unsigned flags, dl_flags;
message mess;
#if 0
int i, r, rport;
@ -750,23 +761,29 @@ int tasknr;
eth_port->etp_osdep.etp_task= tasknr;
flags= eth_port->etp_osdep.etp_recvconf;
dl_flags= DL_NOMODE;
if (flags & NWEO_EN_BROAD)
dl_flags |= DL_BROAD_REQ;
if (flags & NWEO_EN_MULTI)
dl_flags |= DL_MULTI_REQ;
if (flags & NWEO_EN_PROMISC)
dl_flags |= DL_PROMISC_REQ;
mess.m_type= DL_INIT;
mess.DL_PORT= eth_port->etp_osdep.etp_port;
mess.DL_PROC= this_proc;
mess.DL_MODE= eth_port->etp_osdep.etp_dl_flags;
mess.DL_MODE= dl_flags;
r= send(eth_port->etp_osdep.etp_task, &mess);
r= sendrec(eth_port->etp_osdep.etp_task, &mess);
/* YYY */
if (r<0)
{
printf(
"osdep_eth_init: unable to send to ethernet task, error= %d\n",
r);
"eth_restart: sendrec to ethernet task %d failed: %d\n",
eth_port->etp_osdep.etp_task, r);
return;
}
if (receive(eth_port->etp_osdep.etp_task, &mess)<0)
ip_panic(("unable to receive"));
if (mess.m3_i1 == ENXIO)
{
printf(
@ -790,9 +807,17 @@ int tasknr;
eth_port->etp_flags |= EPF_ENABLED;
if (eth_port->etp_wr_pack)
ip_panic(("eth_restart: should clear etp_wr_pack\n"));
{
bf_afree(eth_port->etp_wr_pack);
eth_port->etp_wr_pack= NULL;
eth_restart_write(eth_port);
}
if (eth_port->etp_rd_pack)
ip_panic(("eth_restart: should clear etp_rd_pack\n"));
{
bf_afree(eth_port->etp_rd_pack);
eth_port->etp_rd_pack= NULL;
eth_port->etp_flags &= ~(EPF_READ_IP|EPF_READ_SP);
}
setup_read (eth_port);
}

1
servers/inet/osdep_eth.h
View File

@ -19,7 +19,6 @@ typedef struct osdep_eth_port
int etp_task;
int etp_port;
int etp_recvconf;
unsigned etp_dl_flags;
iovec_t etp_wr_iovec[IOVEC_NR];
iovec_t etp_rd_iovec[RD_IOVEC];
event_t etp_recvev;