/* $NetBSD: isp_netbsd.c,v 1.42 2001/04/25 17:53:32 bouyer 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 */ /* * 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 #include /* * 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 ispminphys(struct buf *); 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 *); /* * 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; 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); TAILQ_INIT(&isp->isp_osinfo.waitq); /* The 2nd bus will share.. */ if (IS_FC(isp)) { isp->isp_osinfo._chan.chan_ntargets = MAX_FC_TARG; isp->isp_osinfo._chan.chan_id = MAX_FC_TARG; } else { 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; } } /* * Send a SCSI Bus Reset. */ if (IS_SCSI(isp)) { int bus = 0; 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); } else { ISP_LOCK(isp); isp_fc_runstate(isp, 2 * 1000000); ISP_UNLOCK(isp); } /* * After this point, we'll be doing the new configuration * schema which allows interrups, so we can do tsleep/wakeup * for mailbox stuff at that point. */ isp->isp_osinfo.no_mbox_ints = 0; /* * And attach children (if any). */ config_found((void *)isp, &isp->isp_osinfo._chan, scsiprint); if (IS_DUALBUS(isp)) { config_found((void *)isp, &isp->isp_osinfo._chan_b, scsiprint); } } /* * minphys our xfers * * Unfortunately, the buffer pointer describes the target device- not the * adapter device, so we can't use the pointer to find out what kind of * adapter we are and adjust accordingly. */ static void ispminphys(struct buf *bp) { /* * XX: Only the 1020 has a 24 bit limit. */ if (bp->b_bcount >= (1 << 24)) { bp->b_bcount = (1 << 24); } minphys(bp); } static int ispioctl(struct scsipi_channel *chan, u_long cmd, caddr_t addr, int flag, struct proc *p) { struct ispsoftc *isp = (void *)chan->chan_adapter->adapt_dev; int s, retval = ENOTTY; switch (cmd) { case SCBUSIORESET: s = splbio(); if (isp_control(isp, ISPCTL_RESET_BUS, &chan->chan_channel)) retval = EIO; else retval = 0; (void) splx(s); break; 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_FC_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; } default: break; } return (retval); } static void isprequest(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg) { struct scsipi_periph *periph; struct ispsoftc *isp = (void *)chan->chan_adapter->adapt_dev; XS_T *xs; int s, result; switch (req) { case ADAPTER_REQ_RUN_XFER: xs = arg; periph = xs->xs_periph; s = splbio(); if (isp->isp_state < ISP_RUNSTATE) { DISABLE_INTS(isp); isp_init(isp); if (isp->isp_state != ISP_INITSTATE) { ENABLE_INTS(isp); (void) splx(s); XS_SETERR(xs, HBA_BOTCH); scsipi_done(xs); return; } isp->isp_state = ISP_RUNSTATE; ENABLE_INTS(isp); } 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; (void) splx(s); return; } result = isp_start(xs); switch (result) { case CMD_QUEUED: if (xs->timeout) { callout_reset(&xs->xs_callout, _XT(xs), isp_dog, xs); } break; case CMD_EAGAIN: xs->error = XS_REQUEUE; scsipi_done(xs); break; case CMD_RQLATER: xs->error = XS_RESOURCE_SHORTAGE; scsipi_done(xs); break; case CMD_COMPLETE: scsipi_done(xs); break; } (void) splx(s); return; case ADAPTER_REQ_GROW_RESOURCES: /* XXX Not supported. */ return; 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; s = splbio(); sdp->isp_devparam[xm->xm_target].dev_flags |= dflags; dflags = sdp->isp_devparam[xm->xm_target].dev_flags; sdp->isp_devparam[xm->xm_target].dev_update = 1; isp->isp_update |= (1 << chan->chan_channel); splx(s); 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: case CMD_EAGAIN: if (XS_NOERR(xs)) { xs->error = XS_REQUEUE; } /* 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) { if (isp_intr((void *)isp)) { 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)) { XS_SETERR(xs, HBA_BOTCH); } } scsipi_done(xs); } void isp_done(XS_T *xs) { XS_CMD_S_DONE(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); 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 r, r1, i; 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); i = 0; do { r = ISP_READ(isp, BIU_ISR); USEC_DELAY(1); r1 = ISP_READ(isp, BIU_ISR); } while (r != r1 && ++i < 1000); if (INT_PENDING(isp, r) && isp_intr(isp) && XS_CMD_DONE_P(xs)) { isp_prt(isp, ISP_LOGDEBUG1, "watchdog cleanup (%x, %x)", handle, r); XS_CMD_C_WDOG(xs); isp_done(xs); } else if (XS_CMD_GRACE_P(xs)) { isp_prt(isp, ISP_LOGDEBUG1, "watchdog timeout (%x, %x)", handle, r); /* * 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 comamnd 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 iptr, optr; ispreq_t *mp; isp_prt(isp, ISP_LOGDEBUG2, "possible command timeout (%x, %x)", handle, r); XS_CMD_C_WDOG(xs); callout_reset(&xs->xs_callout, hz, isp_dog, xs); if (isp_getrqentry(isp, &iptr, &optr, (void **) &mp)) { 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_SWIZZLE_REQUEST(isp, mp); ISP_ADD_REQUEST(isp, iptr); } } else { isp_prt(isp, ISP_LOGDEBUG0, "watchdog with no command"); } ISP_IUNLOCK(isp); } /* * 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; int s = splbio(); 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].cur_dflags; xm.xm_mode = 0; xm.xm_period = sdp->isp_devparam[tgt].cur_period; xm.xm_offset = sdp->isp_devparam[tgt].cur_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_osinfo._chan_b) : (&isp->isp_osinfo._chan), ASYNC_EVENT_XFER_MODE, &xm); break; } case ISPASYNC_BUS_RESET: if (arg) bus = *((int *) arg); else bus = 0; isp_prt(isp, ISP_LOGINFO, "SCSI bus %d reset detected", bus); break; case ISPASYNC_LOOP_DOWN: /* * Hopefully we get here in time to minimize the number * of commands we are firing off that are sure to die. */ scsipi_channel_freeze(&isp->isp_osinfo._chan, 1); if (IS_DUALBUS(isp)) scsipi_channel_freeze(&isp->isp_osinfo._chan_b, 1); isp_prt(isp, ISP_LOGINFO, "Loop DOWN"); break; case ISPASYNC_LOOP_UP: callout_reset(&isp->isp_osinfo._restart, 1, scsipi_channel_timed_thaw, &isp->isp_osinfo._chan); if (IS_DUALBUS(isp)) { callout_reset(&isp->isp_osinfo._restart, 1, scsipi_channel_timed_thaw, &isp->isp_osinfo._chan_b); } isp_prt(isp, ISP_LOGINFO, "Loop UP"); break; case ISPASYNC_PROMENADE: if (IS_FC(isp) && isp->isp_dblev) { 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"; const static char *roles[4] = { "No", "Target", "Initiator", "Target/Initiator" }; fcparam *fcp = isp->isp_param; int tgt = *((int *) arg); struct lportdb *lp = &fcp->portdb[tgt]; isp_prt(isp, ISP_LOGINFO, fmt, tgt, 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 == (void *) 1) { isp_prt(isp, ISP_LOGINFO, "Name Server Database Changed"); } else { isp_prt(isp, ISP_LOGINFO, "Name Server Database Changed"); } break; case ISPASYNC_FABRIC_DEV: { int target, lrange; struct lportdb *lp = NULL; char *pt; sns_ganrsp_t *resp = (sns_ganrsp_t *) arg; u_int32_t portid; u_int64_t wwpn, wwnn; fcparam *fcp = isp->isp_param; portid = (((u_int32_t) resp->snscb_port_id[0]) << 16) | (((u_int32_t) resp->snscb_port_id[1]) << 8) | (((u_int32_t) resp->snscb_port_id[2])); wwpn = (((u_int64_t)resp->snscb_portname[0]) << 56) | (((u_int64_t)resp->snscb_portname[1]) << 48) | (((u_int64_t)resp->snscb_portname[2]) << 40) | (((u_int64_t)resp->snscb_portname[3]) << 32) | (((u_int64_t)resp->snscb_portname[4]) << 24) | (((u_int64_t)resp->snscb_portname[5]) << 16) | (((u_int64_t)resp->snscb_portname[6]) << 8) | (((u_int64_t)resp->snscb_portname[7])); wwnn = (((u_int64_t)resp->snscb_nodename[0]) << 56) | (((u_int64_t)resp->snscb_nodename[1]) << 48) | (((u_int64_t)resp->snscb_nodename[2]) << 40) | (((u_int64_t)resp->snscb_nodename[3]) << 32) | (((u_int64_t)resp->snscb_nodename[4]) << 24) | (((u_int64_t)resp->snscb_nodename[5]) << 16) | (((u_int64_t)resp->snscb_nodename[6]) << 8) | (((u_int64_t)resp->snscb_nodename[7])); if (portid == 0 || wwpn == 0) { break; } switch (resp->snscb_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 @ 0x%x, Node 0x%08x%08x Port %08x%08x", pt, portid, ((u_int32_t) (wwnn >> 32)), ((u_int32_t) wwnn), ((u_int32_t) (wwpn >> 32)), ((u_int32_t) wwpn)); /* * We're only interested in SCSI_FCP types (for now) */ if ((resp->snscb_fc4_types[2] & 1) == 0) { break; } if (fcp->isp_topo != TOPO_F_PORT) lrange = FC_SNS_ID+1; else lrange = 0; /* * Is it already in our list? */ for (target = lrange; target < MAX_FC_TARG; target++) { if (target >= FL_PORT_ID && target <= FC_SNS_ID) { continue; } lp = &fcp->portdb[target]; if (lp->port_wwn == wwpn && lp->node_wwn == wwnn) { lp->fabric_dev = 1; break; } } if (target < MAX_FC_TARG) { break; } for (target = lrange; target < MAX_FC_TARG; target++) { if (target >= FL_PORT_ID && target <= FC_SNS_ID) { continue; } lp = &fcp->portdb[target]; if (lp->port_wwn == 0) { break; } } if (target == MAX_FC_TARG) { isp_prt(isp, ISP_LOGWARN, "no more space for fabric devices"); break; } lp->node_wwn = wwnn; lp->port_wwn = wwpn; lp->portid = portid; lp->fabric_dev = 1; break; } default: break; } (void) splx(s); return (0); } #include 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"); }