635 lines
13 KiB
C
635 lines
13 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* FORE Systems 200-Series Adapter Support
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* ---------------------------------------
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*
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* Loadable kernel module and device identification support
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*
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/syslog.h>
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#include <sys/eventhandler.h>
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#include <net/if.h>
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#include <netatm/port.h>
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#include <netatm/queue.h>
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#include <netatm/atm.h>
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#include <netatm/atm_sys.h>
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#include <netatm/atm_sap.h>
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#include <netatm/atm_cm.h>
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#include <netatm/atm_if.h>
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#include <netatm/atm_stack.h>
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#include <netatm/atm_pcb.h>
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#include <netatm/atm_var.h>
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <dev/hfa/fore.h>
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#include <dev/hfa/fore_aali.h>
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#include <dev/hfa/fore_slave.h>
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#include <dev/hfa/fore_stats.h>
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#include <dev/hfa/fore_var.h>
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#include <dev/hfa/fore_include.h>
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#ifndef lint
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__RCSID("@(#) $FreeBSD$");
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#endif
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/*
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* Local functions
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*/
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static int fore_start __P((void));
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static const char * fore_pci_probe __P((pcici_t, pcidi_t));
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static void fore_pci_attach __P((pcici_t, int));
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static void fore_pci_shutdown __P((void *, int));
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static void fore_unattach __P((Fore_unit *));
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static void fore_reset __P((Fore_unit *));
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/*
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* Local variables
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*/
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static int fore_inited = 0;
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/*
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* Driver entry points
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*/
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static u_long fore_pci_count = 0;
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static struct pci_device fore_pci_device = {
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FORE_DEV_NAME,
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fore_pci_probe,
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fore_pci_attach,
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&fore_pci_count,
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NULL
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};
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COMPAT_PCI_DRIVER(fore_pci, fore_pci_device);
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/*
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* Initialize driver processing
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*
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* This will be called during module loading. Not much to do here, as
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* we must wait for our identify/attach routines to get called before
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* we know what we're in for.
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*
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* Arguments:
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* none
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*
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* Returns:
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* 0 startup was successful
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* errno startup failed - reason indicated
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*
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*/
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static int
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fore_start()
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{
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/*
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* Verify software version
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*/
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if (atm_version != ATM_VERSION) {
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log(LOG_ERR, "version mismatch: fore=%d.%d kernel=%d.%d\n",
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ATM_VERS_MAJ(ATM_VERSION), ATM_VERS_MIN(ATM_VERSION),
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ATM_VERS_MAJ(atm_version), ATM_VERS_MIN(atm_version));
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return (EINVAL);
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}
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/*
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* Initialize DMA mapping
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*/
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DMA_INIT();
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/*
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* Start up watchdog timer
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*/
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atm_timeout(&fore_timer, ATM_HZ * FORE_TIME_TICK, fore_timeout);
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fore_inited = 1;
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return (0);
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}
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/*
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* Device probe routine
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*
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* Determine if this driver will support the identified device. If we claim
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* to support the device, our attach routine will (later) be called for the
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* device.
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*
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* Arguments:
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* config_id device's PCI configuration ID
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* device_id device's PCI Vendor/Device ID
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*
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* Returns:
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* name device identification string
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* NULL device not claimed by this driver
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*
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*/
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static const char *
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fore_pci_probe(config_id, device_id)
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pcici_t config_id;
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pcidi_t device_id;
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{
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/*
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* Initialize driver stuff
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*/
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if (fore_inited == 0) {
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if (fore_start())
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return (NULL);
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}
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if ((device_id & 0xffff) != FORE_VENDOR_ID)
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return (NULL);
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if (((device_id >> 16) & 0xffff) == FORE_PCA200E_ID)
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return ("FORE Systems PCA-200E ATM");
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return (NULL);
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}
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/*
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* Device attach routine
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*
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* Attach a device we've previously claimed to support. Walk through its
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* register set and map, as required. Determine what level the device will
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* be interrupting at and then register an interrupt handler for it. If we
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* succeed, then reset the adapter and initialize the microcode.
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* Last, register the interface with the kernel ATM services.
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*
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* Arguments:
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* config_id device's PCI configuration ID
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* unit device unit number
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*
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* Returns:
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* none
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*
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*/
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static void
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fore_pci_attach(config_id, unit)
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pcici_t config_id;
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int unit;
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{
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Fore_unit *fup;
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vm_offset_t va;
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vm_offset_t pa;
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pcidi_t device_id;
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long val;
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int err_count = BOOT_LOOPS;
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/*
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* Just checking...
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*/
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if (unit >= FORE_MAX_UNITS) {
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log(LOG_ERR, "%s%d: too many devices\n",
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FORE_DEV_NAME, unit);
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return;
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}
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/*
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* Make sure this isn't a duplicate unit
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*/
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if (fore_units[unit] != NULL)
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return;
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/*
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* Allocate a new unit structure
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*/
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fup = (Fore_unit *) atm_dev_alloc(sizeof(Fore_unit), sizeof(int), 0);
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if (fup == NULL)
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return;
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/*
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* Start initializing it
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*/
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fup->fu_unit = unit;
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fup->fu_mtu = FORE_IFF_MTU;
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fup->fu_pcitag = config_id;
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fup->fu_vcc_pool = &fore_vcc_pool;
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fup->fu_nif_pool = &fore_nif_pool;
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fup->fu_ioctl = fore_atm_ioctl;
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fup->fu_instvcc = fore_instvcc;
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fup->fu_openvcc = fore_openvcc;
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fup->fu_closevcc = fore_closevcc;
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fup->fu_output = fore_output;
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callout_handle_init(&fup->fu_thandle);
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/*
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* Get our device type
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*/
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device_id = pci_conf_read ( config_id, PCI_ID_REG );
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switch ((device_id >> 16) & 0xffff) {
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case FORE_PCA200E_ID:
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fup->fu_config.ac_device = DEV_FORE_PCA200E;
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break;
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default:
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fup->fu_config.ac_device = DEV_UNKNOWN;
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}
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/*
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* Enable Memory Mapping / Bus Mastering
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*/
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val = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG);
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val |= (PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
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pci_conf_write(config_id, PCI_COMMAND_STATUS_REG, val);
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/*
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* Map RAM
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*/
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val = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG);
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if ((val & PCIM_CMD_MEMEN) == 0) {
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log(LOG_ERR, "%s%d: memory mapping not enabled\n",
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FORE_DEV_NAME, unit);
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goto failed;
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}
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if ((pci_map_mem(config_id, PCA200E_PCI_MEMBASE, &va, &pa)) == 0) {
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log(LOG_ERR, "%s%d: unable to map memory\n",
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FORE_DEV_NAME, unit);
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goto failed;
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}
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fup->fu_ram = (Fore_mem *)va;
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fup->fu_ramsize = PCA200E_RAM_SIZE;
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fup->fu_mon = (Mon960 *)(fup->fu_ram + MON960_BASE);
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fup->fu_ctlreg = (Fore_reg *)(va + PCA200E_HCR_OFFSET);
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fup->fu_imask = (Fore_reg *)(va + PCA200E_IMASK_OFFSET);
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fup->fu_psr = (Fore_reg *)(va + PCA200E_PSR_OFFSET);
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/*
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* Convert Endianess of Slave RAM accesses
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*/
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val = pci_conf_read(config_id, PCA200E_PCI_MCTL);
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val |= PCA200E_MCTL_SWAP;
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pci_conf_write(config_id, PCA200E_PCI_MCTL, val);
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/*
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* Map interrupt in
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*/
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if ( !pci_map_int( config_id, fore_intr, fup, &net_imask ) ) {
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log(LOG_ERR, "%s%d: unable to map interrupt\n",
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FORE_DEV_NAME, unit);
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goto failed;
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}
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/*
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* Poke the hardware - boot the CP and prepare it for downloading
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*/
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fore_reset(fup);
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/*
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* Wait for the monitor to perform self-test
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*/
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while (CP_READ(fup->fu_mon->mon_bstat) != BOOT_MONREADY) {
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if (CP_READ(fup->fu_mon->mon_bstat) == BOOT_FAILTEST) {
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log(LOG_ERR, "%s%d: failed self-test\n",
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FORE_DEV_NAME, unit);
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goto failed;
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} else if ( --err_count == 0 ) {
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log(LOG_ERR, "%s%d: unable to boot - status=0x%lx\n",
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FORE_DEV_NAME, unit,
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(u_long)CP_READ(fup->fu_mon->mon_bstat));
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goto failed;
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}
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DELAY ( BOOT_DELAY );
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}
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/*
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* Setup the adapter config info - at least as much as we can
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*/
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fup->fu_config.ac_vendor = VENDOR_FORE;
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fup->fu_config.ac_vendapi = VENDAPI_FORE_1;
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fup->fu_config.ac_media = MEDIA_OC3C;
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fup->fu_pif.pif_pcr = ATM_PCR_OC3C;
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fup->fu_config.ac_bustype = BUS_PCI;
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fup->fu_config.ac_busslot = config_id->bus << 8 | config_id->slot;
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/*
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* Save device ram info for user-level programs
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*/
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fup->fu_config.ac_ram = (long)fup->fu_ram;
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fup->fu_config.ac_ramsize = fup->fu_ramsize;
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/*
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* Set device capabilities
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*/
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fup->fu_pif.pif_maxvpi = FORE_MAX_VPI;
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fup->fu_pif.pif_maxvci = FORE_MAX_VCI;
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/*
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* Register this interface with ATM core services
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*/
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if ( atm_physif_register
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((Cmn_unit *)fup, FORE_DEV_NAME, fore_services) != 0 )
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{
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/*
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* Registration failed - back everything out
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*/
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goto failed;
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}
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fore_units[unit] = fup;
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fore_nunits++;
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/*
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* Add hook to our shutdown function
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*/
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EVENTHANDLER_REGISTER(shutdown_post_sync, fore_pci_shutdown, fup,
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SHUTDOWN_PRI_DEFAULT);
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/*
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* Initialize the CP microcode program.
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*/
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fore_initialize(fup);
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return;
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failed:
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/*
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* Unattach the device from the system
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*/
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fore_unattach(fup);
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/*
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* Free any Fore-specific device resources
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*/
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fore_interface_free(fup);
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atm_dev_free(fup);
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return;
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}
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/*
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* Device shutdown routine
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*
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* Arguments:
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* howto type of shutdown
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* fup pointer to device unit structure
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*
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* Returns:
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* none
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*
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*/
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static void
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fore_pci_shutdown(fup, howto)
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void *fup;
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int howto;
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{
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fore_reset((Fore_unit *) fup);
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return;
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}
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/*
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* Device unattach routine
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*
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* Reset the physical device, remove any pending timeouts,
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* unmap any register sets, and unregister any interrupts.
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*
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* Arguments:
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* fup pointer to device unit structure
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*
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* Returns:
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* none
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*/
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static void
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fore_unattach(fup)
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Fore_unit *fup;
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{
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/*
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* Reset the board and return it to cold_start state.
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* Hopefully, this will prevent use of resources as
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* we're trying to free things up.
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*/
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fore_reset(fup);
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/*
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* Lock out all device interrupts
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*/
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DEVICE_LOCK((Cmn_unit *)fup);
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/*
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* Remove any pending timeout()'s
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*/
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(void)untimeout((KTimeout_ret(*) __P((void *)))fore_initialize,
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(void *)fup, fup->fu_thandle);
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/*
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* Unmap the device interrupt
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*/
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(void) pci_unmap_int(fup->fu_pcitag);
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/*
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* Unmap memory
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*/
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#ifdef notdef
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(void) pci_unmap_mem(fup->fu_pcitag, PCA200E_PCI_MEMBASE);
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#endif
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DEVICE_UNLOCK((Cmn_unit *)fup);
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}
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/*
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* Device reset routine
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*
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* Reset the physical device
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*
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* Arguments:
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* fup pointer to device unit structure
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*
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* Returns:
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* none
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*/
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static void
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fore_reset(fup)
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Fore_unit *fup;
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{
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int s = splimp();
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/*
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* Reset the board and return it to cold_start state
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*/
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if (fup->fu_mon)
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fup->fu_mon->mon_bstat = CP_WRITE(BOOT_COLDSTART);
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if (fup->fu_ctlreg) {
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if (fup->fu_config.ac_device == DEV_FORE_PCA200E) {
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/*
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* Reset i960 by setting and clearing RESET
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*/
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PCA200E_HCR_INIT(*fup->fu_ctlreg, PCA200E_RESET);
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DELAY(10000);
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PCA200E_HCR_CLR(*fup->fu_ctlreg, PCA200E_RESET);
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}
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}
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(void) splx(s);
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return;
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}
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#ifndef ATM_LINKED
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/*
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*******************************************************************
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*
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* Loadable Module Support
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*
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*******************************************************************
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*/
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#ifdef notdef
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/*
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* Driver entry points
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*/
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static struct cdevsw fore_cdev = {
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/* open */ noopen,
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/* close */ noclose,
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/* read */ noread,
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/* write */ nowrite,
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/* ioctl */ noioctl,
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/* poll */ nopoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ noname,
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/* maj */ -1,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ 0,
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/* bmaj */ -1
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};
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/*
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* Loadable device driver module description
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*/
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MOD_DEV(fore, LM_DT_CHAR, -1, (void *)&fore_cdev);
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/*
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* Loadable module support "load" entry point
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*
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* This is the routine called by the lkm driver whenever the
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* modload(1) command is issued for this module.
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*
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* Arguments:
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* lkmtp pointer to lkm drivers's structure
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* cmd lkm command code
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*
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* Returns:
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* 0 command was successful
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* errno command failed - reason indicated
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*
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*/
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static int
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fore_load(lkmtp, cmd)
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struct lkm_table *lkmtp;
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int cmd;
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{
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return(fore_doload());
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}
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/*
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* Loadable module support "unload" entry point
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*
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* This is the routine called by the lkm driver whenever the
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* modunload(1) command is issued for this module.
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*
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* Arguments:
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* lkmtp pointer to lkm drivers's structure
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* cmd lkm command code
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*
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* Returns:
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* 0 command was successful
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|
* errno command failed - reason indicated
|
|
*
|
|
*/
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|
static int
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|
fore_unload(lkmtp, cmd)
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struct lkm_table *lkmtp;
|
|
int cmd;
|
|
{
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|
return(fore_dounload());
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}
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|
|
|
|
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/*
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|
* Loadable module support entry point
|
|
*
|
|
* This is the routine called by the lkm driver for all loadable module
|
|
* functions for this driver. This routine name must be specified
|
|
* on the modload(1) command. This routine will be called whenever the
|
|
* modload(1), modunload(1) or modstat(1) commands are issued for this
|
|
* module.
|
|
*
|
|
* Arguments:
|
|
* lkmtp pointer to lkm drivers's structure
|
|
* cmd lkm command code
|
|
* ver lkm version
|
|
*
|
|
* Returns:
|
|
* 0 command was successful
|
|
* errno command failed - reason indicated
|
|
*
|
|
*/
|
|
int
|
|
fore_mod(lkmtp, cmd, ver)
|
|
struct lkm_table *lkmtp;
|
|
int cmd;
|
|
int ver;
|
|
{
|
|
DISPATCH(lkmtp, cmd, ver, fore_load, fore_unload, lkm_nullcmd);
|
|
}
|
|
#endif /* notdef */
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|
|
|
#endif /* ATM_LINKED */
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|