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freebsd-dev/sys/dev/hfa/fore_init.c

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/*-
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $FreeBSD$
*
*/
/*
* FORE Systems 200-Series Adapter Support
* ---------------------------------------
*
* Cell Processor (CP) initialization routines
*
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/syslog.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <net/if.h>
#include <netatm/port.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_cm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_stack.h>
#include <netatm/atm_pcb.h>
#include <netatm/atm_var.h>
#include <dev/pci/pcivar.h>
#include <dev/hfa/fore.h>
#include <dev/hfa/fore_aali.h>
#include <dev/hfa/fore_slave.h>
#include <dev/hfa/fore_stats.h>
#include <dev/hfa/fore_var.h>
#include <dev/hfa/fore_include.h>
#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif
/*
* Local functions
*/
static void fore_get_prom(Fore_unit *);
/*
* 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(fup)
Fore_unit *fup;
{
Aali *aap;
Init_parms *inp;
caddr_t errmsg;
u_long vers;
u_int c, wait;
#define MAX_WAIT 100
/*
* Must wait until firmware has been downloaded and is running
*/
if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {
/*
* Try again later
*/
fup->fu_thandle =
timeout((KTimeout_ret(*)(void *))fore_initialize,
(void *)fup, hz);
return;
} else
callout_handle_init(&fup->fu_thandle);
/*
* 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;
}
snprintf(fup->fu_config.ac_firm_vers,
sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
(vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);
if (((vers >> 16) & 0xff) == 4)
fup->fu_ft4 = 1;
else
fup->fu_ft4 = 0;
#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);
if (!fup->fu_ft4) {
inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
return;
}
inp->init_cmd = CP_WRITE(CMD_INIT);
/*
* With the ForeThought 4.X image it appears that we need to
* busy wait on the initializisation command to complete.
* Otherwise the command queue address (the first word
* of the queue structure) will be mangled.
*/
c = 0;
for (wait = 0; wait < MAX_WAIT; wait++) {
c = CP_READ(inp->init_status);
if (c & QSTAT_COMPLETED)
break;
DELAY(1000);
}
if (c & QSTAT_ERROR) {
log(LOG_ERR, "fore initialization failed: intf=%s%d, "
"hbeat=0x%lx\n", fup->fu_pif.pif_name,
fup->fu_pif.pif_unit, (u_long)CP_READ(aap->aali_heartbeat));
fore_interface_free(fup);
return;
}
if (!(c & QSTAT_COMPLETED)) {
log(LOG_ERR, "fore initialization timed out: intf=%s%d, "
"hbeat=0x%lx\n", fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
(u_long)CP_READ(aap->aali_heartbeat));
fore_interface_free(fup);
return;
}
fore_initialize_complete(fup);
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;
}
/*
* Complete CP Initialization
*
* Called after the CP has successfully completed processing of the
* Initialize command. We will now finish off our part of the
* initialization process by setting up all the host-based queue
* management structures.
*
* Called at interrupt level.
*
* Arguments:
* fup pointer to device unit structure
*
* Returns:
* none
*/
void
fore_initialize_complete(fup)
Fore_unit *fup;
{
Aali *aap = fup->fu_aali;
/*
* Log an initialization failure
*/
if (CP_READ(aap->aali_init.init_status) & QSTAT_ERROR) {
log(LOG_ERR,
"fore initialization failed: intf=%s%d, hbeat=0x%lx\n",
fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
(u_long)CP_READ(aap->aali_heartbeat));
return;
}
ATM_DEBUG1("heap=0x%lx\n", aap->aali_heap);
ATM_DEBUG1("heaplen=0x%lx\n", aap->aali_heaplen);
ATM_DEBUG1("cmd_q=0x%lx\n", aap->aali_cmd_q);
ATM_DEBUG1("xmit_q=0x%lx\n", aap->aali_xmit_q);
ATM_DEBUG1("recv_q=0x%lx\n", aap->aali_recv_q);
ATM_DEBUG1("buf1s_q=0x%lx\n", aap->aali_buf1s_q);
ATM_DEBUG1("buf1l_q=0x%lx\n", aap->aali_buf1l_q);
ATM_DEBUG1("buf2s_q=0x%lx\n", aap->aali_buf2s_q);
ATM_DEBUG1("buf2l_q=0x%lx\n", aap->aali_buf2l_q);
/*
* Initialize all of our queues
*/
fore_xmit_initialize(fup);
fore_recv_initialize(fup);
fore_buf_initialize(fup);
fore_cmd_initialize(fup);
/*
* Mark device initialization completed
*/
fup->fu_flags |= CUF_INITED;
fore_get_prom(fup);
return;
}
/*
* Get device PROM values from CP
*
* This function will issue a GET_PROM command to the CP in order to
* initiate the DMA transfer of the CP's PROM structure to the host.
* This will be called after CP initialization has completed.
* There is (currently) no retry if this fails.
*
* It took me some time to find out that FT3 and FT4 use different
* operation codes for GET_PROM.
*
* Called at interrupt level.
*
* Arguments:
* fup pointer to device unit structure
*
* Returns:
* none
*
*/
static void
fore_get_prom(fup)
Fore_unit *fup;
{
H_cmd_queue *hcp;
Cmd_queue *cqp;
/*
* Queue command at end of command queue
*/
hcp = fup->fu_cmd_tail;
if ((*hcp->hcq_status) & QSTAT_FREE) {
/*
* Queue entry available, so set our view of things up
*/
if (fup->fu_ft4)
hcp->hcq_code = CMD_GET_PROM4;
else
hcp->hcq_code = CMD_GET_PROM;
hcp->hcq_arg = NULL;
fup->fu_cmd_tail = hcp->hcq_next;
/*
* Now set the CP-resident queue entry - the CP will grab
* the command when the op-code is set.
*/
cqp = hcp->hcq_cpelem;
(*hcp->hcq_status) = QSTAT_PENDING;
fup->fu_promd = vtophys(fup->fu_prom);
if (fup->fu_promd == 0) {
fup->fu_stats->st_drv.drv_cm_nodma++;
return;
}
cqp->cmdq_prom.prom_buffer = (CP_dma) CP_WRITE(fup->fu_promd);
cqp->cmdq_prom.prom_cmd = CP_WRITE(hcp->hcq_code | CMD_INTR_REQ);
} else {
/*
* Command queue full
*/
fup->fu_stats->st_drv.drv_cm_full++;
}
return;
}
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