/*
* Halt driver processing
*
* This will be called just prior to unloading the module from memory.
* Everything we've setup since we've been loaded must be undone here.
*
* Arguments:
* none
*
* Returns:
* 0 shutdown was successful
* errno shutdown failed - reason indicated
*
*/
static int
fore_stop()
{
int err = 0;
int s = splimp();
int i;
/*
* Stop the watchdog timer
*/
(void) atm_untimeout(&fore_timer);
/*
* Clean up each device (if any)
*/
for ( i = 0; i < fore_nunits; i++ ) {
Fore_unit *fup = fore_units[i];
if (fup == NULL)
continue;
/*
* Deregister device from kernel services
*/
if (err = atm_physif_deregister((Cmn_unit *)fup)) {
(void) splx(s);
return (err);
}
/*
* Unattach the device from the system
*/
fore_unattach(fup);
/*
* Free any Fore-specific device resources
*/
fore_interface_free(fup);
/*
* Free the unit structure
*/
atm_dev_free(fup);
fore_units[i] = NULL;
}
fore_nunits = 0;
/*
* Now free our global resources
*/
/*
* Release our storage pools
*/
atm_release_pool(&fore_vcc_pool);
atm_release_pool(&fore_nif_pool);
/*
* Release all DMA mappings
*/
DMA_RELEASE();
fore_inited = 0;
(void) splx(s);
return (0);
}
/*
* Begin CP Initialization
*
* This function will poll for the successful downloading and starting of
* the CP microcode program. After the microcode is running, we will allocate
* any needed kernel memory (must do it in non-interrupt mode), build the CP
* queue configurations and issue an Initialize command to the CP.
*
* Arguments:
* fup pointer to device unit structure
*
* Returns:
* none
*/
void
fore_initialize(void *xfup)
{
Fore_unit *fup = xfup;
Aali *aap;
Init_parms *inp;
caddr_t errmsg;
u_long vers;
/*
* Must wait until firmware has been downloaded and is running
*/
if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {
/*
* Try again later
*/
callout_reset(&fup->fu_init_timer, hz, fore_initialize, fup);
return;
}
/*
* Allocate queues and whatever else is needed
*/
if (fore_xmit_allocate(fup)) {
errmsg = "transmit queue allocation";
goto failed;
}
if (fore_recv_allocate(fup)) {
errmsg = "receive queue allocation";
goto failed;
}
if (fore_buf_allocate(fup)) {
errmsg = "buffer supply queue allocation";
goto failed;
}
if (fore_cmd_allocate(fup)) {
errmsg = "command queue allocation";
goto failed;
}
/*
* CP microcode is downloaded - locate shared memory interface
*/
aap = (Aali *)(fup->fu_ram + CP_READ(fup->fu_mon->mon_appl));
fup->fu_aali = aap;
/*
* Pick out any interesting info from the microcode
*/
vers = CP_READ(aap->aali_ucode_ver);
if (vers < FORE_MIN_UCODE) {
errmsg = "unsupported microcode version";
goto failed;
}
ksnprintf(fup->fu_config.ac_firm_vers,
sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
(vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);
#ifdef notdef
/*
* Turn on CP debugging
*/
aap->aali_hostlog = 1;
#endif
/*
* Build the initialization block
*/
inp = &aap->aali_init;
inp->init_numvcc = CP_WRITE(FORE_MAX_VCC);
inp->init_cmd_elem = CP_WRITE(CMD_QUELEN);
inp->init_xmit_elem = CP_WRITE(XMIT_QUELEN);
inp->init_recv_elem = CP_WRITE(RECV_QUELEN);
inp->init_recv_ext = CP_WRITE(RECV_EXTRA_SEGS);
inp->init_xmit_ext = CP_WRITE(XMIT_EXTRA_SEGS);
inp->init_buf1s.bfs_quelen = CP_WRITE(BUF1_SM_QUELEN);
inp->init_buf1s.bfs_bufsize = CP_WRITE(BUF1_SM_SIZE);
inp->init_buf1s.bfs_cppool = CP_WRITE(BUF1_SM_CPPOOL);
inp->init_buf1s.bfs_entsize = CP_WRITE(BUF1_SM_ENTSIZE);
inp->init_buf1l.bfs_quelen = CP_WRITE(BUF1_LG_QUELEN);
inp->init_buf1l.bfs_bufsize = CP_WRITE(BUF1_LG_SIZE);
inp->init_buf1l.bfs_cppool = CP_WRITE(BUF1_LG_CPPOOL);
inp->init_buf1l.bfs_entsize = CP_WRITE(BUF1_LG_ENTSIZE);
inp->init_buf2s.bfs_quelen = CP_WRITE(0);
inp->init_buf2s.bfs_bufsize = CP_WRITE(0);
inp->init_buf2s.bfs_cppool = CP_WRITE(0);
inp->init_buf2s.bfs_entsize = CP_WRITE(0);
inp->init_buf2l.bfs_quelen = CP_WRITE(0);
inp->init_buf2l.bfs_bufsize = CP_WRITE(0);
inp->init_buf2l.bfs_cppool = CP_WRITE(0);
inp->init_buf2l.bfs_entsize = CP_WRITE(0);
/*
* Enable device interrupts
*/
aap->aali_intr_ena = CP_WRITE(1);
/*
* Issue the Initialize command to the CP and wait for
* the CP to interrupt to signal completion
*/
inp->init_status = CP_WRITE(QSTAT_PENDING);
inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
return;
failed:
/*
* Initialization failure
*/
fore_interface_free(fup);
log(LOG_ERR, "fore initialization failed: intf=%s%d, err=%s\n",
fup->fu_pif.pif_name, fup->fu_pif.pif_unit, errmsg);
return;
}
