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NetBSD/sys/dev/ic/isp_netbsd.c

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/* $NetBSD: isp_netbsd.c,v 1.70 2006/10/12 01:31:01 christos Exp $ */
/*
* This driver, which is contained in NetBSD in the files:
*
* sys/dev/ic/isp.c
* sys/dev/ic/isp_inline.h
* sys/dev/ic/isp_netbsd.c
* sys/dev/ic/isp_netbsd.h
* sys/dev/ic/isp_target.c
* sys/dev/ic/isp_target.h
* sys/dev/ic/isp_tpublic.h
* sys/dev/ic/ispmbox.h
* sys/dev/ic/ispreg.h
* sys/dev/ic/ispvar.h
* sys/microcode/isp/asm_sbus.h
* sys/microcode/isp/asm_1040.h
* sys/microcode/isp/asm_1080.h
* sys/microcode/isp/asm_12160.h
* sys/microcode/isp/asm_2100.h
* sys/microcode/isp/asm_2200.h
* sys/pci/isp_pci.c
* sys/sbus/isp_sbus.c
*
* Is being actively maintained by Matthew Jacob (mjacob@NetBSD.org).
* This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris,
* Linux versions. This tends to be an interesting maintenance problem.
*
* Please coordinate with Matthew Jacob on changes you wish to make here.
*/
/*
* Platform (NetBSD) dependent common attachment code for Qlogic adapters.
* Matthew Jacob <mjacob@nas.nasa.gov>
*/
/*
* Copyright (C) 1997, 1998, 1999 National Aeronautics & Space Administration
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: isp_netbsd.c,v 1.70 2006/10/12 01:31:01 christos Exp $");
#include <dev/ic/isp_netbsd.h>
#include <sys/scsiio.h>
/*
* Set a timeout for the watchdogging of a command.
*
* The dimensional analysis is
*
* milliseconds * (seconds/millisecond) * (ticks/second) = ticks
*
* =
*
* (milliseconds / 1000) * hz = ticks
*
*
* For timeouts less than 1 second, we'll get zero. Because of this, and
* because we want to establish *our* timeout to be longer than what the
* firmware might do, we just add 3 seconds at the back end.
*/
#define _XT(xs) ((((xs)->timeout/1000) * hz) + (3 * hz))
static void isp_config_interrupts(struct device *);
static void ispminphys_1020(struct buf *);
static void ispminphys(struct buf *);
static INLINE void ispcmd(struct ispsoftc *, XS_T *);
static void isprequest(struct scsipi_channel *, scsipi_adapter_req_t, void *);
static int
ispioctl(struct scsipi_channel *, u_long, caddr_t, int, struct proc *);
static void isp_polled_cmd(struct ispsoftc *, XS_T *);
static void isp_dog(void *);
static void isp_create_fc_worker(void *);
static void isp_fc_worker(void *);
/*
* Complete attachment of hardware, include subdevices.
*/
void
isp_attach(struct ispsoftc *isp)
{
isp->isp_state = ISP_RUNSTATE;
isp->isp_osinfo._adapter.adapt_dev = &isp->isp_osinfo._dev;
isp->isp_osinfo._adapter.adapt_nchannels = IS_DUALBUS(isp) ? 2 : 1;
isp->isp_osinfo._adapter.adapt_openings = isp->isp_maxcmds;
/*
* It's not stated whether max_periph is limited by SPI
* tag uage, but let's assume that it is.
*/
isp->isp_osinfo._adapter.adapt_max_periph = min(isp->isp_maxcmds, 255);
isp->isp_osinfo._adapter.adapt_ioctl = ispioctl;
isp->isp_osinfo._adapter.adapt_request = isprequest;
if (isp->isp_type <= ISP_HA_SCSI_1020A) {
isp->isp_osinfo._adapter.adapt_minphys = ispminphys_1020;
} else {
isp->isp_osinfo._adapter.adapt_minphys = ispminphys;
}
isp->isp_osinfo._chan.chan_adapter = &isp->isp_osinfo._adapter;
isp->isp_osinfo._chan.chan_bustype = &scsi_bustype;
isp->isp_osinfo._chan.chan_channel = 0;
/*
* Until the midlayer is fixed to use REPORT LUNS, limit to 8 luns.
*/
isp->isp_osinfo._chan.chan_nluns = min(isp->isp_maxluns, 8);
if (IS_FC(isp)) {
#if 0 /* XXX channel "settle" time seems to sidestep some nasty race */
isp->isp_osinfo._chan.chan_flags = SCSIPI_CHAN_NOSETTLE;
#endif
isp->isp_osinfo._chan.chan_ntargets = MAX_FC_TARG;
isp->isp_osinfo._chan.chan_id = MAX_FC_TARG;
isp->isp_osinfo.threadwork = 1;
/*
* Note that isp_create_fc_worker won't get called
* until much much later (after proc0 is created).
*/
kthread_create(isp_create_fc_worker, isp);
#ifdef ISP_FW_CRASH_DUMP
if (IS_2200(isp)) {
FCPARAM(isp)->isp_dump_data =
malloc(QLA2200_RISC_IMAGE_DUMP_SIZE, M_DEVBUF,
M_NOWAIT);
} else if (IS_23XX(isp)) {
FCPARAM(isp)->isp_dump_data =
malloc(QLA2300_RISC_IMAGE_DUMP_SIZE, M_DEVBUF,
M_NOWAIT);
}
if (FCPARAM(isp)->isp_dump_data)
FCPARAM(isp)->isp_dump_data[0] = 0;
#endif
} else {
int bus = 0;
sdparam *sdp = isp->isp_param;
isp->isp_osinfo._chan.chan_ntargets = MAX_TARGETS;
isp->isp_osinfo._chan.chan_id = sdp->isp_initiator_id;
isp->isp_osinfo.discovered[0] = 1 << sdp->isp_initiator_id;
if (IS_DUALBUS(isp)) {
isp->isp_osinfo._chan_b = isp->isp_osinfo._chan;
sdp++;
isp->isp_osinfo.discovered[1] =
1 << sdp->isp_initiator_id;
isp->isp_osinfo._chan_b.chan_id = sdp->isp_initiator_id;
isp->isp_osinfo._chan_b.chan_channel = 1;
}
ISP_LOCK(isp);
(void) isp_control(isp, ISPCTL_RESET_BUS, &bus);
if (IS_DUALBUS(isp)) {
bus++;
(void) isp_control(isp, ISPCTL_RESET_BUS, &bus);
}
ISP_UNLOCK(isp);
}
/*
* Defer enabling mailbox interrupts until later.
*/
config_interrupts((struct device *) isp, isp_config_interrupts);
/*
* And attach children (if any).
*/
config_found((void *)isp, &isp->isp_chanA, scsiprint);
if (IS_DUALBUS(isp)) {
config_found((void *)isp, &isp->isp_chanB, scsiprint);
}
}
static void
isp_config_interrupts(struct device *self)
{
struct ispsoftc *isp = (struct ispsoftc *) self;
/*
* After this point, we'll be doing the new configuration
* schema which allows interrupts, so we can do tsleep/wakeup
* for mailbox stuff at that point, if that's allowed.
*/
if (IS_FC(isp)) {
isp->isp_osinfo.no_mbox_ints = 0;
}
}
/*
* minphys our xfers
*/
static void
ispminphys_1020(struct buf *bp)
{
if (bp->b_bcount >= (1 << 24)) {
bp->b_bcount = (1 << 24);
}
minphys(bp);
}
static void
ispminphys(struct buf *bp)
{
if (bp->b_bcount >= (1 << 30)) {
bp->b_bcount = (1 << 30);
}
minphys(bp);
}
static int
ispioctl(struct scsipi_channel *chan, u_long cmd, caddr_t addr,
int flag __unused, struct proc *p __unused)
{
struct ispsoftc *isp = (void *)chan->chan_adapter->adapt_dev;
int retval = ENOTTY;
switch (cmd) {
#ifdef ISP_FW_CRASH_DUMP
case ISP_GET_FW_CRASH_DUMP:
{
u_int16_t *ptr = FCPARAM(isp)->isp_dump_data;
size_t sz;
retval = 0;
if (IS_2200(isp))
sz = QLA2200_RISC_IMAGE_DUMP_SIZE;
else
sz = QLA2300_RISC_IMAGE_DUMP_SIZE;
ISP_LOCK(isp);
if (ptr && *ptr) {
void *uaddr = *((void **) addr);
if (copyout(ptr, uaddr, sz)) {
retval = EFAULT;
} else {
*ptr = 0;
}
} else {
retval = ENXIO;
}
ISP_UNLOCK(isp);
break;
}
case ISP_FORCE_CRASH_DUMP:
ISP_LOCK(isp);
if (isp->isp_osinfo.blocked == 0) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
isp_fw_dump(isp);
isp_reinit(isp);
ISP_UNLOCK(isp);
retval = 0;
break;
#endif
case ISP_SDBLEV:
{
int olddblev = isp->isp_dblev;
isp->isp_dblev = *(int *)addr;
*(int *)addr = olddblev;
retval = 0;
break;
}
case ISP_RESETHBA:
ISP_LOCK(isp);
isp_reinit(isp);
ISP_UNLOCK(isp);
retval = 0;
break;
case ISP_RESCAN:
if (IS_FC(isp)) {
ISP_LOCK(isp);
if (isp_fc_runstate(isp, 5 * 1000000)) {
retval = EIO;
} else {
retval = 0;
}
ISP_UNLOCK(isp);
}
break;
case ISP_FC_LIP:
if (IS_FC(isp)) {
ISP_LOCK(isp);
if (isp_control(isp, ISPCTL_SEND_LIP, 0)) {
retval = EIO;
} else {
retval = 0;
}
ISP_UNLOCK(isp);
}
break;
case ISP_FC_GETDINFO:
{
struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
struct lportdb *lp;
if (/* ifc->loopid < 0 || */ ifc->loopid >= MAX_FC_TARG) {
retval = EINVAL;
break;
}
ISP_LOCK(isp);
lp = &FCPARAM(isp)->portdb[ifc->loopid];
if (lp->valid) {
ifc->loopid = lp->loopid;
ifc->portid = lp->portid;
ifc->node_wwn = lp->node_wwn;
ifc->port_wwn = lp->port_wwn;
retval = 0;
} else {
retval = ENODEV;
}
ISP_UNLOCK(isp);
break;
}
case ISP_GET_STATS:
{
isp_stats_t *sp = (isp_stats_t *) addr;
MEMZERO(sp, sizeof (*sp));
sp->isp_stat_version = ISP_STATS_VERSION;
sp->isp_type = isp->isp_type;
sp->isp_revision = isp->isp_revision;
ISP_LOCK(isp);
sp->isp_stats[ISP_INTCNT] = isp->isp_intcnt;
sp->isp_stats[ISP_INTBOGUS] = isp->isp_intbogus;
sp->isp_stats[ISP_INTMBOXC] = isp->isp_intmboxc;
sp->isp_stats[ISP_INGOASYNC] = isp->isp_intoasync;
sp->isp_stats[ISP_RSLTCCMPLT] = isp->isp_rsltccmplt;
sp->isp_stats[ISP_FPHCCMCPLT] = isp->isp_fphccmplt;
sp->isp_stats[ISP_RSCCHIWAT] = isp->isp_rscchiwater;
sp->isp_stats[ISP_FPCCHIWAT] = isp->isp_fpcchiwater;
ISP_UNLOCK(isp);
retval = 0;
break;
}
case ISP_CLR_STATS:
ISP_LOCK(isp);
isp->isp_intcnt = 0;
isp->isp_intbogus = 0;
isp->isp_intmboxc = 0;
isp->isp_intoasync = 0;
isp->isp_rsltccmplt = 0;
isp->isp_fphccmplt = 0;
isp->isp_rscchiwater = 0;
isp->isp_fpcchiwater = 0;
ISP_UNLOCK(isp);
retval = 0;
break;
case ISP_FC_GETHINFO:
{
struct isp_hba_device *hba = (struct isp_hba_device *) addr;
MEMZERO(hba, sizeof (*hba));
ISP_LOCK(isp);
hba->fc_speed = FCPARAM(isp)->isp_gbspeed;
hba->fc_scsi_supported = 1;
hba->fc_topology = FCPARAM(isp)->isp_topo + 1;
hba->fc_loopid = FCPARAM(isp)->isp_loopid;
hba->nvram_node_wwn = FCPARAM(isp)->isp_nodewwn;
hba->nvram_port_wwn = FCPARAM(isp)->isp_portwwn;
hba->active_node_wwn = ISP_NODEWWN(isp);
hba->active_port_wwn = ISP_PORTWWN(isp);
ISP_UNLOCK(isp);
break;
}
case SCBUSIORESET:
ISP_LOCK(isp);
if (isp_control(isp, ISPCTL_RESET_BUS, &chan->chan_channel))
retval = EIO;
else
retval = 0;
ISP_UNLOCK(isp);
break;
default:
break;
}
return (retval);
}
static INLINE void
ispcmd(struct ispsoftc *isp, XS_T *xs)
{
ISP_LOCK(isp);
if (isp->isp_state < ISP_RUNSTATE) {
DISABLE_INTS(isp);
isp_init(isp);
if (isp->isp_state != ISP_INITSTATE) {
ENABLE_INTS(isp);
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "isp not at init state");
XS_SETERR(xs, HBA_BOTCH);
scsipi_done(xs);
return;
}
isp->isp_state = ISP_RUNSTATE;
ENABLE_INTS(isp);
}
/*
* Handle the case of a FC card where the FC thread hasn't
* fired up yet and we have loop state to clean up. If we
* can't clear things up and we've never seen loop up, bounce
* the command.
*/
if (IS_FC(isp) && isp->isp_osinfo.threadwork &&
isp->isp_osinfo.thread == 0) {
volatile u_int8_t ombi = isp->isp_osinfo.no_mbox_ints;
int delay_time;
if (xs->xs_control & XS_CTL_POLL) {
isp->isp_osinfo.no_mbox_ints = 1;
}
if (isp->isp_osinfo.loop_checked == 0) {
delay_time = 10 * 1000000;
isp->isp_osinfo.loop_checked = 1;
} else {
delay_time = 250000;
}
if (isp_fc_runstate(isp, delay_time) != 0) {
if (xs->xs_control & XS_CTL_POLL) {
isp->isp_osinfo.no_mbox_ints = ombi;
}
if (FCPARAM(isp)->loop_seen_once == 0) {
XS_SETERR(xs, HBA_SELTIMEOUT);
scsipi_done(xs);
ISP_UNLOCK(isp);
return;
}
/*
* Otherwise, fall thru to be queued up for later.
*/
} else {
int wasblocked =
(isp->isp_osinfo.blocked || isp->isp_osinfo.paused);
isp->isp_osinfo.threadwork = 0;
isp->isp_osinfo.blocked =
isp->isp_osinfo.paused = 0;
if (wasblocked) {
scsipi_channel_thaw(&isp->isp_chanA, 1);
}
}
if (xs->xs_control & XS_CTL_POLL) {
isp->isp_osinfo.no_mbox_ints = ombi;
}
}
if (isp->isp_osinfo.paused) {
isp_prt(isp, ISP_LOGWARN, "I/O while paused");
xs->error = XS_RESOURCE_SHORTAGE;
scsipi_done(xs);
ISP_UNLOCK(isp);
return;
}
if (isp->isp_osinfo.blocked) {
isp_prt(isp, ISP_LOGWARN, "I/O while blocked");
xs->error = XS_REQUEUE;
scsipi_done(xs);
ISP_UNLOCK(isp);
return;
}
if (xs->xs_control & XS_CTL_POLL) {
volatile u_int8_t ombi = isp->isp_osinfo.no_mbox_ints;
isp->isp_osinfo.no_mbox_ints = 1;
isp_polled_cmd(isp, xs);
isp->isp_osinfo.no_mbox_ints = ombi;
ISP_UNLOCK(isp);
return;
}
switch (isp_start(xs)) {
case CMD_QUEUED:
if (xs->timeout) {
callout_reset(&xs->xs_callout, _XT(xs), isp_dog, xs);
}
break;
case CMD_EAGAIN:
isp->isp_osinfo.paused = 1;
xs->error = XS_RESOURCE_SHORTAGE;
scsipi_channel_freeze(&isp->isp_chanA, 1);
if (IS_DUALBUS(isp)) {
scsipi_channel_freeze(&isp->isp_chanB, 1);
}
scsipi_done(xs);
break;
case CMD_RQLATER:
/*
* We can only get RQLATER from FC devices (1 channel only)
*
* Also, if we've never seen loop up, bounce the command
* (somebody has booted with no FC cable connected)
*/
if (FCPARAM(isp)->loop_seen_once == 0) {
XS_SETERR(xs, HBA_SELTIMEOUT);
scsipi_done(xs);
break;
}
if (isp->isp_osinfo.blocked == 0) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
xs->error = XS_REQUEUE;
scsipi_done(xs);
break;
case CMD_COMPLETE:
scsipi_done(xs);
break;
}
ISP_UNLOCK(isp);
}
static void
isprequest(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg)
{
struct ispsoftc *isp = (void *)chan->chan_adapter->adapt_dev;
switch (req) {
case ADAPTER_REQ_RUN_XFER:
ispcmd(isp, (XS_T *) arg);
break;
case ADAPTER_REQ_GROW_RESOURCES:
/* Not supported. */
break;
case ADAPTER_REQ_SET_XFER_MODE:
if (IS_SCSI(isp)) {
struct scsipi_xfer_mode *xm = arg;
int dflags = 0;
sdparam *sdp = SDPARAM(isp);
sdp += chan->chan_channel;
if (xm->xm_mode & PERIPH_CAP_TQING)
dflags |= DPARM_TQING;
if (xm->xm_mode & PERIPH_CAP_WIDE16)
dflags |= DPARM_WIDE;
if (xm->xm_mode & PERIPH_CAP_SYNC)
dflags |= DPARM_SYNC;
ISP_LOCK(isp);
sdp->isp_devparam[xm->xm_target].goal_flags |= dflags;
dflags = sdp->isp_devparam[xm->xm_target].goal_flags;
sdp->isp_devparam[xm->xm_target].dev_update = 1;
isp->isp_update |= (1 << chan->chan_channel);
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGDEBUG1,
"ispioctl: device flags 0x%x for %d.%d.X",
dflags, chan->chan_channel, xm->xm_target);
break;
}
default:
break;
}
}
static void
isp_polled_cmd(struct ispsoftc *isp, XS_T *xs)
{
int result;
int infinite = 0, mswait;
result = isp_start(xs);
switch (result) {
case CMD_QUEUED:
break;
case CMD_RQLATER:
if (XS_NOERR(xs)) {
xs->error = XS_REQUEUE;
}
case CMD_EAGAIN:
if (XS_NOERR(xs)) {
xs->error = XS_RESOURCE_SHORTAGE;
}
/* FALLTHROUGH */
case CMD_COMPLETE:
scsipi_done(xs);
return;
}
/*
* If we can't use interrupts, poll on completion.
*/
if ((mswait = XS_TIME(xs)) == 0)
infinite = 1;
while (mswait || infinite) {
u_int16_t isr, sema, mbox;
if (ISP_READ_ISR(isp, &isr, &sema, &mbox)) {
isp_intr(isp, isr, sema, mbox);
if (XS_CMD_DONE_P(xs)) {
break;
}
}
USEC_DELAY(1000);
mswait -= 1;
}
/*
* If no other error occurred but we didn't finish,
* something bad happened.
*/
if (XS_CMD_DONE_P(xs) == 0) {
if (isp_control(isp, ISPCTL_ABORT_CMD, xs)) {
isp_reinit(isp);
}
if (XS_NOERR(xs)) {
isp_prt(isp, ISP_LOGERR, "polled command timed out");
XS_SETERR(xs, HBA_BOTCH);
}
}
scsipi_done(xs);
}
void
isp_done(XS_T *xs)
{
if (XS_CMD_WDOG_P(xs) == 0) {
struct ispsoftc *isp = XS_ISP(xs);
callout_stop(&xs->xs_callout);
if (XS_CMD_GRACE_P(xs)) {
isp_prt(isp, ISP_LOGDEBUG1,
"finished command on borrowed time");
}
XS_CMD_S_CLEAR(xs);
/*
* Fixup- if we get a QFULL, we need
* to set XS_BUSY as the error.
*/
if (xs->status == SCSI_QUEUE_FULL) {
xs->error = XS_BUSY;
}
if (isp->isp_osinfo.paused) {
isp->isp_osinfo.paused = 0;
scsipi_channel_timed_thaw(&isp->isp_chanA);
if (IS_DUALBUS(isp)) {
scsipi_channel_timed_thaw(&isp->isp_chanB);
}
}
if (xs->error == XS_DRIVER_STUFFUP) {
isp_prt(isp, ISP_LOGERR, "BOTCHED cmd for %d.%d.%d cmd 0x%x datalen %ld",
XS_CHANNEL(xs), XS_TGT(xs), XS_LUN(xs), XS_CDBP(xs)[0], (long) XS_XFRLEN(xs));
}
scsipi_done(xs);
}
}
static void
isp_dog(void *arg)
{
XS_T *xs = arg;
struct ispsoftc *isp = XS_ISP(xs);
u_int16_t handle;
ISP_ILOCK(isp);
/*
* We've decided this command is dead. Make sure we're not trying
* to kill a command that's already dead by getting it's handle and
* and seeing whether it's still alive.
*/
handle = isp_find_handle(isp, xs);
if (handle) {
u_int16_t isr, mbox, sema;
if (XS_CMD_DONE_P(xs)) {
isp_prt(isp, ISP_LOGDEBUG1,
"watchdog found done cmd (handle 0x%x)", handle);
ISP_IUNLOCK(isp);
return;
}
if (XS_CMD_WDOG_P(xs)) {
isp_prt(isp, ISP_LOGDEBUG1,
"recursive watchdog (handle 0x%x)", handle);
ISP_IUNLOCK(isp);
return;
}
XS_CMD_S_WDOG(xs);
if (ISP_READ_ISR(isp, &isr, &sema, &mbox)) {
isp_intr(isp, isr, sema, mbox);
}
if (XS_CMD_DONE_P(xs)) {
isp_prt(isp, ISP_LOGDEBUG1,
"watchdog cleanup for handle 0x%x", handle);
XS_CMD_C_WDOG(xs);
isp_done(xs);
} else if (XS_CMD_GRACE_P(xs)) {
isp_prt(isp, ISP_LOGDEBUG1,
"watchdog timeout for handle 0x%x", handle);
/*
* Make sure the command is *really* dead before we
* release the handle (and DMA resources) for reuse.
*/
(void) isp_control(isp, ISPCTL_ABORT_CMD, arg);
/*
* After this point, the command is really dead.
*/
if (XS_XFRLEN(xs)) {
ISP_DMAFREE(isp, xs, handle);
}
isp_destroy_handle(isp, handle);
XS_SETERR(xs, XS_TIMEOUT);
XS_CMD_S_CLEAR(xs);
isp_done(xs);
} else {
u_int16_t nxti, optr;
ispreq_t local, *mp = &local, *qe;
isp_prt(isp, ISP_LOGDEBUG2,
"possible command timeout on handle %x", handle);
XS_CMD_C_WDOG(xs);
callout_reset(&xs->xs_callout, hz, isp_dog, xs);
if (isp_getrqentry(isp, &nxti, &optr, (void *) &qe)) {
ISP_UNLOCK(isp);
return;
}
XS_CMD_S_GRACE(xs);
MEMZERO((void *) mp, sizeof (*mp));
mp->req_header.rqs_entry_count = 1;
mp->req_header.rqs_entry_type = RQSTYPE_MARKER;
mp->req_modifier = SYNC_ALL;
mp->req_target = XS_CHANNEL(xs) << 7;
isp_put_request(isp, mp, qe);
ISP_ADD_REQUEST(isp, nxti);
}
} else {
isp_prt(isp, ISP_LOGDEBUG0, "watchdog with no command");
}
ISP_IUNLOCK(isp);
}
/*
* Fibre Channel state cleanup thread
*/
static void
isp_create_fc_worker(void *arg)
{
struct ispsoftc *isp = arg;
if (kthread_create1(isp_fc_worker, isp, &isp->isp_osinfo.thread,
"%s:fc_thrd", isp->isp_name)) {
isp_prt(isp, ISP_LOGERR, "unable to create FC worker thread");
panic("isp_create_fc_worker");
}
}
static void
isp_fc_worker(void *arg)
{
void scsipi_run_queue(struct scsipi_channel *);
struct ispsoftc *isp = arg;
for (;;) {
int s;
/*
* Note we do *not* use the ISP_LOCK/ISP_UNLOCK macros here.
*/
s = splbio();
while (isp->isp_osinfo.threadwork) {
isp->isp_osinfo.threadwork = 0;
if (isp_fc_runstate(isp, 250000) == 0) {
break;
}
if (isp->isp_osinfo.loop_checked &&
FCPARAM(isp)->loop_seen_once == 0) {
splx(s);
goto skip;
}
isp->isp_osinfo.loop_checked = 1;
isp->isp_osinfo.threadwork = 1;
splx(s);
delay(500 * 1000);
s = splbio();
}
if (FCPARAM(isp)->isp_fwstate != FW_READY ||
FCPARAM(isp)->isp_loopstate != LOOP_READY) {
isp_prt(isp, ISP_LOGINFO, "isp_fc_runstate in vain");
isp->isp_osinfo.threadwork = 1;
splx(s);
continue;
}
if (isp->isp_osinfo.blocked) {
isp->isp_osinfo.blocked = 0;
isp_prt(isp, ISP_LOGDEBUG0,
"restarting queues (freeze count %d)",
isp->isp_chanA.chan_qfreeze);
scsipi_channel_thaw(&isp->isp_chanA, 1);
}
if (isp->isp_osinfo.thread == NULL)
break;
skip:
(void) tsleep(&isp->isp_osinfo.thread, PRIBIO, "fcclnup", 0);
splx(s);
}
/* In case parent is waiting for us to exit. */
wakeup(&isp->isp_osinfo.thread);
kthread_exit(0);
}
/*
* Free any associated resources prior to decommissioning and
* set the card to a known state (so it doesn't wake up and kick
* us when we aren't expecting it to).
*
* Locks are held before coming here.
*/
void
isp_uninit(struct ispsoftc *isp)
{
isp_lock(isp);
/*
* Leave with interrupts disabled.
*/
DISABLE_INTS(isp);
isp_unlock(isp);
}
int
isp_async(struct ispsoftc *isp, ispasync_t cmd, void *arg)
{
int bus, tgt;
switch (cmd) {
case ISPASYNC_NEW_TGT_PARAMS:
if (IS_SCSI(isp) && isp->isp_dblev) {
sdparam *sdp = isp->isp_param;
int flags;
struct scsipi_xfer_mode xm;
tgt = *((int *) arg);
bus = (tgt >> 16) & 0xffff;
tgt &= 0xffff;
sdp += bus;
flags = sdp->isp_devparam[tgt].actv_flags;
xm.xm_mode = 0;
xm.xm_period = sdp->isp_devparam[tgt].actv_period;
xm.xm_offset = sdp->isp_devparam[tgt].actv_offset;
xm.xm_target = tgt;
if ((flags & DPARM_SYNC) && xm.xm_period && xm.xm_offset)
xm.xm_mode |= PERIPH_CAP_SYNC;
if (flags & DPARM_WIDE)
xm.xm_mode |= PERIPH_CAP_WIDE16;
if (flags & DPARM_TQING)
xm.xm_mode |= PERIPH_CAP_TQING;
scsipi_async_event(bus? &isp->isp_chanB : &isp->isp_chanA,
ASYNC_EVENT_XFER_MODE, &xm);
break;
}
case ISPASYNC_BUS_RESET:
bus = *((int *) arg);
scsipi_async_event(bus? &isp->isp_chanB : &isp->isp_chanA,
ASYNC_EVENT_RESET, NULL);
isp_prt(isp, ISP_LOGINFO, "SCSI bus %d reset detected", bus);
break;
case ISPASYNC_LIP:
/*
* Don't do queue freezes or blockage until we have the
* thread running that can unfreeze/unblock us.
*/
if (isp->isp_osinfo.blocked == 0) {
if (isp->isp_osinfo.thread) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
}
isp_prt(isp, ISP_LOGINFO, "LIP Received");
break;
case ISPASYNC_LOOP_RESET:
/*
* Don't do queue freezes or blockage until we have the
* thread running that can unfreeze/unblock us.
*/
if (isp->isp_osinfo.blocked == 0) {
if (isp->isp_osinfo.thread) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
}
isp_prt(isp, ISP_LOGINFO, "Loop Reset Received");
break;
case ISPASYNC_LOOP_DOWN:
/*
* Don't do queue freezes or blockage until we have the
* thread running that can unfreeze/unblock us.
*/
if (isp->isp_osinfo.blocked == 0) {
if (isp->isp_osinfo.thread) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
}
isp_prt(isp, ISP_LOGINFO, "Loop DOWN");
break;
case ISPASYNC_LOOP_UP:
/*
* Let the subsequent ISPASYNC_CHANGE_NOTIFY invoke
* the FC worker thread. When the FC worker thread
* is done, let *it* call scsipi_channel_thaw...
*/
isp_prt(isp, ISP_LOGINFO, "Loop UP");
break;
case ISPASYNC_PROMENADE:
if (IS_FC(isp) && isp->isp_dblev) {
static const char fmt[] = "Target %d (Loop 0x%x) Port ID 0x%x "
"(role %s) %s\n Port WWN 0x%08x%08x\n Node WWN 0x%08x%08x";
static const char *const roles[4] = {
"None", "Target", "Initiator", "Target/Initiator"
};
fcparam *fcp = isp->isp_param;
int tgt1 = *((int *) arg);
struct lportdb *lp = &fcp->portdb[tgt1];
isp_prt(isp, ISP_LOGINFO, fmt, tgt1, lp->loopid, lp->portid,
roles[lp->roles & 0x3],
(lp->valid)? "Arrived" : "Departed",
(u_int32_t) (lp->port_wwn >> 32),
(u_int32_t) (lp->port_wwn & 0xffffffffLL),
(u_int32_t) (lp->node_wwn >> 32),
(u_int32_t) (lp->node_wwn & 0xffffffffLL));
break;
}
case ISPASYNC_CHANGE_NOTIFY:
if (arg == ISPASYNC_CHANGE_PDB) {
isp_prt(isp, ISP_LOGINFO, "Port Database Changed");
} else if (arg == ISPASYNC_CHANGE_SNS) {
isp_prt(isp, ISP_LOGINFO,
"Name Server Database Changed");
}
/*
* We can set blocked here because we know it's now okay
* to try and run isp_fc_runstate (in order to build loop
* state). But we don't try and freeze the midlayer's queue
* if we have no thread that we can wake to later unfreeze
* it.
*/
if (isp->isp_osinfo.blocked == 0) {
isp->isp_osinfo.blocked = 1;
if (isp->isp_osinfo.thread) {
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
}
/*
* Note that we have work for the thread to do, and
* if the thread is here already, wake it up.
*/
isp->isp_osinfo.threadwork++;
if (isp->isp_osinfo.thread) {
wakeup(&isp->isp_osinfo.thread);
} else {
isp_prt(isp, ISP_LOGDEBUG1, "no FC thread yet");
}
break;
case ISPASYNC_FABRIC_DEV:
{
int target, base, lim;
fcparam *fcp = isp->isp_param;
struct lportdb *lp = NULL;
struct lportdb *clp = (struct lportdb *) arg;
const char *pt;
switch (clp->port_type) {
case 1:
pt = " N_Port";
break;
case 2:
pt = " NL_Port";
break;
case 3:
pt = "F/NL_Port";
break;
case 0x7f:
pt = " Nx_Port";
break;
case 0x81:
pt = " F_port";
break;
case 0x82:
pt = " FL_Port";
break;
case 0x84:
pt = " E_port";
break;
default:
pt = " ";
break;
}
isp_prt(isp, ISP_LOGINFO,
"%s Fabric Device @ PortID 0x%x", pt, clp->portid);
/*
* If we don't have an initiator role we bail.
*
* We just use ISPASYNC_FABRIC_DEV for announcement purposes.
*/
if ((isp->isp_role & ISP_ROLE_INITIATOR) == 0) {
break;
}
/*
* Is this entry for us? If so, we bail.
*/
if (fcp->isp_portid == clp->portid) {
break;
}
/*
* Else, the default policy is to find room for it in
* our local port database. Later, when we execute
* the call to isp_pdb_sync either this newly arrived
* or already logged in device will be (re)announced.
*/
if (fcp->isp_topo == TOPO_FL_PORT)
base = FC_SNS_ID+1;
else
base = 0;
if (fcp->isp_topo == TOPO_N_PORT)
lim = 1;
else
lim = MAX_FC_TARG;
/*
* Is it already in our list?
*/
for (target = base; target < lim; target++) {
if (target >= FL_PORT_ID && target <= FC_SNS_ID) {
continue;
}
lp = &fcp->portdb[target];
if (lp->port_wwn == clp->port_wwn &&
lp->node_wwn == clp->node_wwn) {
lp->fabric_dev = 1;
break;
}
}
if (target < lim) {
break;
}
for (target = base; target < lim; target++) {
if (target >= FL_PORT_ID && target <= FC_SNS_ID) {
continue;
}
lp = &fcp->portdb[target];
if (lp->port_wwn == 0) {
break;
}
}
if (target == lim) {
isp_prt(isp, ISP_LOGWARN,
"out of space for fabric devices");
break;
}
lp->port_type = clp->port_type;
lp->fc4_type = clp->fc4_type;
lp->node_wwn = clp->node_wwn;
lp->port_wwn = clp->port_wwn;
lp->portid = clp->portid;
lp->fabric_dev = 1;
break;
}
case ISPASYNC_FW_CRASH:
{
u_int16_t mbox1, mbox6;
mbox1 = ISP_READ(isp, OUTMAILBOX1);
if (IS_DUALBUS(isp)) {
mbox6 = ISP_READ(isp, OUTMAILBOX6);
} else {
mbox6 = 0;
}
isp_prt(isp, ISP_LOGERR,
"Internal Firmware Error on bus %d @ RISC Address 0x%x",
mbox6, mbox1);
#ifdef ISP_FW_CRASH_DUMP
if (IS_FC(isp)) {
if (isp->isp_osinfo.blocked == 0) {
isp->isp_osinfo.blocked = 1;
scsipi_channel_freeze(&isp->isp_chanA, 1);
}
isp_fw_dump(isp);
}
isp_reinit(isp);
isp_async(isp, ISPASYNC_FW_RESTART, NULL);
#endif
break;
}
default:
break;
}
return (0);
}
#include <machine/stdarg.h>
void
isp_prt(struct ispsoftc *isp, int level, const char *fmt, ...)
{
va_list ap;
if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
return;
}
printf("%s: ", isp->isp_name);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}
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