/* $NetBSD: isp.c,v 1.7 1997/06/08 06:31:52 thorpej Exp $ */ /* * Machine Independent (well, as best as possible) * code for the Qlogic ISP SCSI adapters. * * Specific probe attach and support routines for Qlogic ISP SCSI adapters. * * Copyright (c) 1997 by Matthew Jacob * NASA AMES Research Center. * 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 immediately at the beginning of the file, without modification, * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. */ /* * Inspiration and ideas about this driver are from Erik Moe's Linux driver * (qlogicisp.c) and Dave Miller's SBus version of same (qlogicisp.c) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define MBOX_DELAY_COUNT 1000000 / 100 struct cfdriver isp_cd = { NULL, "isp", DV_DULL }; static void ispminphys __P((struct buf *)); static int32_t ispscsicmd __P((struct scsi_xfer *xs)); static int isp_mboxcmd __P((struct ispsoftc *, mbreg_t *)); static struct scsi_adapter isp_switch = { ispscsicmd, ispminphys, 0, 0 }; static struct scsi_device isp_dev = { NULL, NULL, NULL, NULL }; static int isp_poll __P((struct ispsoftc *, struct scsi_xfer *, int)); static int isp_parse_status __P((struct ispsoftc *, ispstatusreq_t *)); static void isp_lostcmd __P((struct ispsoftc *, struct scsi_xfer *)); /* * Reset Hardware. * * Only looks at sc_dev.dv_xname, sc_iot and sc_ioh fields. */ void isp_reset(isp) struct ispsoftc *isp; { mbreg_t mbs; int loops, i; u_int8_t clock; isp->isp_state = ISP_NILSTATE; /* * Do MD specific pre initialization */ ISP_RESET0(isp); /* * Try and get old clock rate out before we hit the * chip over the head- but if and only if we don't * know our desired clock rate. */ clock = isp->isp_mdvec->dv_clock; if (clock == 0) { mbs.param[0] = MBOX_GET_CLOCK_RATE; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] == MBOX_COMMAND_COMPLETE) { clock = mbs.param[1]; printf("board-clock 0x%x ", clock); } else { clock = 0; } } /* * Hit the chip over the head with hammer. */ ISP_WRITE(isp, BIU_ICR, BIU_ICR_SOFT_RESET); /* * Give the ISP a chance to recover... */ delay(100); /* * Clear data && control DMA engines. */ ISP_WRITE(isp, CDMA_CONTROL, DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT); ISP_WRITE(isp, DDMA_CONTROL, DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT); /* * Wait for ISP to be ready to go... */ loops = MBOX_DELAY_COUNT; while ((ISP_READ(isp, BIU_ICR) & BIU_ICR_SOFT_RESET) != 0) { delay(100); if (--loops < 0) { printf("chip reset timed out\n", isp->isp_name); return; } } /* * More initialization */ ISP_WRITE(isp, BIU_CONF1, 0); ISP_WRITE(isp, HCCR, HCCR_CMD_RESET); delay(100); if (isp->isp_mdvec->dv_conf1) { ISP_SETBITS(isp, BIU_CONF1, isp->isp_mdvec->dv_conf1); if (isp->isp_mdvec->dv_conf1 & BIU_BURST_ENABLE) { ISP_SETBITS(isp, CDMA_CONF, DMA_ENABLE_BURST); ISP_SETBITS(isp, DDMA_CONF, DMA_ENABLE_BURST); } } else { ISP_WRITE(isp, BIU_CONF1, 0); } #if 0 ISP_WRITE(isp, RISC_MTR, 0x1212); /* FM */ #endif ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); /* release paused processor */ /* * Do MD specific post initialization */ ISP_RESET1(isp); /* * Enable interrupts */ ISP_WRITE(isp, BIU_ICR, BIU_ICR_ENABLE_RISC_INT | BIU_ICR_ENABLE_ALL_INTS); /* * Do some sanity checking. */ mbs.param[0] = MBOX_NO_OP; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("NOP test failed\n"); return; } mbs.param[0] = MBOX_MAILBOX_REG_TEST; mbs.param[1] = 0xdead; mbs.param[2] = 0xbeef; mbs.param[3] = 0xffff; mbs.param[4] = 0x1111; mbs.param[5] = 0xa5a5; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("Mailbox Register test didn't complete\n"); return; } i = 0; if (mbs.param[1] != 0xdead) { printf("Register Test Failed @reg %d (got %x)\n", 1, mbs.param[1]); i++; } if (mbs.param[2] != 0xbeef) { printf("Register Test Failed @reg %d (got %x)\n", 2, mbs.param[2]); i++; } if (mbs.param[3] != 0xffff) { printf("Register Test Failed @reg %d (got %x)\n", 3, mbs.param[3]); i++; } if (mbs.param[4] != 0x1111) { printf("Register Test Failed @reg %d (got %x)\n", 4, mbs.param[4]); i++; } if (mbs.param[5] != 0xa5a5) { printf("Register Test Failed @reg %d (got %x)\n", 5, mbs.param[5]); i++; } if (i) { return; } /* * Download new Firmware */ for (i = 0; i < isp->isp_mdvec->dv_fwlen; i++) { mbs.param[0] = MBOX_WRITE_RAM_WORD; mbs.param[1] = isp->isp_mdvec->dv_codeorg + i; mbs.param[2] = isp->isp_mdvec->dv_ispfw[i]; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("f/w download failed\n"); return; } } /* * Verify that it downloaded correctly. */ mbs.param[0] = MBOX_VERIFY_CHECKSUM; mbs.param[1] = isp->isp_mdvec->dv_codeorg; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("ram checksum failure\n"); return; } /* * Now start it rolling... */ mbs.param[0] = MBOX_EXEC_FIRMWARE; mbs.param[1] = isp->isp_mdvec->dv_codeorg; (void) isp_mboxcmd(isp, &mbs); /* * Set CLOCK RATE */ if (clock) { mbs.param[0] = MBOX_SET_CLOCK_RATE; mbs.param[1] = clock; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("failed to set CLOCKRATE\n"); return; } } mbs.param[0] = MBOX_ABOUT_FIRMWARE; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("ABOUT FIRMWARE command failed\n"); return; } printf("F/W rev %d.%d ", mbs.param[1], mbs.param[2]); isp->isp_state = ISP_RESETSTATE; } /* * Initialize Hardware to known state */ void isp_init(isp) struct ispsoftc *isp; { mbreg_t mbs; int s, i, l; /* * Set Default Host Adapter Parameters * XXX: Should try and get them out of NVRAM */ isp->isp_adapter_enabled = 1; isp->isp_req_ack_active_neg = 1; isp->isp_data_line_active_neg = 1; isp->isp_cmd_dma_burst_enable = 1; isp->isp_data_dma_burst_enabl = 1; isp->isp_fifo_threshold = 2; isp->isp_initiator_id = 7; isp->isp_async_data_setup = 6; isp->isp_selection_timeout = 250; isp->isp_max_queue_depth = 256; isp->isp_tag_aging = 8; isp->isp_bus_reset_delay = 3; isp->isp_retry_count = 0; isp->isp_retry_delay = 1; for (i = 0; i < MAX_TARGETS; i++) { isp->isp_devparam[i].dev_flags = DPARM_DEFAULT; isp->isp_devparam[i].exc_throttle = 16; isp->isp_devparam[i].sync_period = 25; isp->isp_devparam[i].sync_offset = 12; isp->isp_devparam[i].dev_enable = 1; } s = splbio(); mbs.param[0] = MBOX_SET_INIT_SCSI_ID; mbs.param[1] = isp->isp_initiator_id; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set initiator id\n", isp->isp_name); return; } mbs.param[0] = MBOX_SET_RETRY_COUNT; mbs.param[1] = isp->isp_retry_count; mbs.param[2] = isp->isp_retry_delay; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set retry count and delay\n", isp->isp_name); return; } mbs.param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME; mbs.param[1] = isp->isp_async_data_setup; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set async data setup time\n", isp->isp_name); return; } mbs.param[0] = MBOX_SET_ACTIVE_NEG_STATE; mbs.param[1] = (isp->isp_req_ack_active_neg << 4) | (isp->isp_data_line_active_neg << 5); (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set active negation state\n", isp->isp_name); return; } mbs.param[0] = MBOX_SET_TAG_AGE_LIMIT; mbs.param[1] = isp->isp_tag_aging; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set tag age limit\n", isp->isp_name); return; } mbs.param[0] = MBOX_SET_SELECT_TIMEOUT; mbs.param[1] = isp->isp_selection_timeout; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set selection timeout\n", isp->isp_name); return; } for (i = 0; i < MAX_TARGETS; i++) { if (isp->isp_devparam[i].dev_enable == 0) continue; mbs.param[0] = MBOX_SET_TARGET_PARAMS; mbs.param[1] = i << 8; mbs.param[2] = isp->isp_devparam[i].dev_flags << 8; mbs.param[3] = (isp->isp_devparam[i].sync_offset << 8) | (isp->isp_devparam[i].sync_period); (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set target parameters\n", isp->isp_name); return; } for (l = 0; l < MAX_LUNS; l++) { mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS; mbs.param[1] = (i << 8) | l; mbs.param[2] = isp->isp_max_queue_depth; mbs.param[3] = isp->isp_devparam[i].exc_throttle; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: failed to set device queue " "parameters\n", isp->isp_name); return; } } } /* * Set up DMA for the request and result mailboxes. */ if (ISP_MBOXDMASETUP(isp)) { (void) splx(s); printf("%s: can't setup DMA for mailboxes\n", isp->isp_name); return; } mbs.param[0] = MBOX_INIT_RES_QUEUE; mbs.param[1] = RESULT_QUEUE_LEN; mbs.param[2] = (u_int16_t) (isp->isp_result_dma >> 16); mbs.param[3] = (u_int16_t) (isp->isp_result_dma & 0xffff); mbs.param[4] = 0; mbs.param[5] = 0; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: set of response queue failed\n", isp->isp_name); return; } isp->isp_residx = 0; mbs.param[0] = MBOX_INIT_REQ_QUEUE; mbs.param[1] = RQUEST_QUEUE_LEN; mbs.param[2] = (u_int16_t) (isp->isp_rquest_dma >> 16); mbs.param[3] = (u_int16_t) (isp->isp_rquest_dma & 0xffff); mbs.param[4] = 0; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: set of request queue failed\n", isp->isp_name); return; } isp->isp_reqidx = 0; /* * Unfortunately, this is the only way right now for * forcing a sync renegotiation. If we boot off of * an Alpha, it's put the chip in SYNC mode, but we * haven't necessarily set up the parameters the * same, so we'll have to yank the reset line to * get everyone to renegotiate. */ mbs.param[0] = MBOX_BUS_RESET; mbs.param[1] = 2; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { (void) splx(s); printf("%s: SCSI bus reset failed\n", isp->isp_name); } isp->isp_sendmarker = 1; (void) splx(s); isp->isp_state = ISP_INITSTATE; } /* * Complete attachment of Hardware, include subdevices. */ void isp_attach(isp) struct ispsoftc *isp; { isp->isp_state = ISP_RUNSTATE; isp->isp_link.adapter_softc = isp; isp->isp_link.adapter_target = isp->isp_initiator_id; isp->isp_link.adapter = &isp_switch; isp->isp_link.device = &isp_dev; isp->isp_link.openings = RQUEST_QUEUE_LEN / (MAX_TARGETS - 1); isp->isp_link.adapter_buswidth = MAX_TARGETS; config_found((void *)isp, &isp->isp_link, scsiprint); } /* * Free any associated resources prior to decommissioning. */ void isp_uninit(isp) struct ispsoftc *isp; { } /* * minphys our xfers */ static void ispminphys(bp) struct buf *bp; { /* * XX: Only the 1020 has a 24 bit limit. */ if (bp->b_bcount >= (1 << 24)) { bp->b_bcount = (1 << 24) - 1; } minphys(bp); } /* * start an xfer */ static int32_t ispscsicmd(xs) struct scsi_xfer *xs; { struct ispsoftc *isp; u_int8_t iptr, optr; ispreq_t *req; int s, i; isp = xs->sc_link->adapter_softc; optr = ISP_READ(isp, OUTMAILBOX4); iptr = isp->isp_reqidx; req = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr); iptr = (iptr + 1) & (RQUEST_QUEUE_LEN - 1); if (iptr == optr) { printf("%s: Request Queue Overflow\n", isp->isp_name); xs->error = XS_DRIVER_STUFFUP; return (TRY_AGAIN_LATER); } s = splbio(); if (isp->isp_sendmarker) { ipsmarkreq_t *marker = (ipsmarkreq_t *) req; bzero((void *) marker, sizeof (*marker)); marker->req_header.rqs_entry_count = 1; marker->req_header.rqs_entry_type = RQSTYPE_MARKER; marker->req_modifier = SYNC_ALL; isp->isp_sendmarker = 0; if (((iptr + 1) & (RQUEST_QUEUE_LEN - 1)) == optr) { ISP_WRITE(isp, INMAILBOX4, iptr); isp->isp_reqidx = iptr; (void) splx(s); printf("%s: Request Queue Overflow+\n", isp->isp_name); xs->error = XS_DRIVER_STUFFUP; return (TRY_AGAIN_LATER); } req = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr); iptr = (iptr + 1) & (RQUEST_QUEUE_LEN - 1); } bzero((void *) req, sizeof (*req)); req->req_header.rqs_entry_count = 1; req->req_header.rqs_entry_type = RQSTYPE_REQUEST; req->req_header.rqs_flags = 0; req->req_header.rqs_seqno = isp->isp_seqno++; for (i = 0; i < RQUEST_QUEUE_LEN; i++) { if (isp->isp_xflist[i] == NULL) break; } if (i == RQUEST_QUEUE_LEN) { panic("%s: ran out of xflist pointers\n", isp->isp_name); /* NOTREACHED */ } else { isp->isp_xflist[i] = xs; req->req_handle = i; } req->req_flags = 0; req->req_lun_trn = xs->sc_link->lun; req->req_target = xs->sc_link->target; req->req_cdblen = xs->cmdlen; bcopy((void *)xs->cmd, req->req_cdb, xs->cmdlen); #if 0 printf("%s(%d.%d): START%d cmd 0x%x datalen %d\n", isp->isp_name, xs->sc_link->target, xs->sc_link->lun, req->req_header.rqs_seqno, *(u_char *) xs->cmd, xs->datalen); #endif req->req_time = xs->timeout / 1000; req->req_seg_count = 0; if (ISP_DMASETUP(isp, xs, req, &iptr, optr)) { (void) splx(s); xs->error = XS_DRIVER_STUFFUP; return (COMPLETE); } xs->error = 0; ISP_WRITE(isp, INMAILBOX4, iptr); isp->isp_reqidx = iptr; (void) splx(s); if ((xs->flags & SCSI_POLL) == 0) { return (SUCCESSFULLY_QUEUED); } /* * If we can't use interrupts, poll on completion. */ if (isp_poll(isp, xs, xs->timeout)) { #if 0 /* XXX try to abort it, or whatever */ if (isp_poll(isp, xs, xs->timeout) { /* XXX really nuke it */ } #endif /* * If no other error occurred but we didn't finish, * something bad happened. */ if ((xs->flags & ITSDONE) == 0 && xs->error == XS_NOERROR) { isp_lostcmd(isp, xs); xs->error = XS_DRIVER_STUFFUP; } } return (COMPLETE); } /* * Interrupt Service Routine(s) */ int isp_poll(isp, xs, mswait) struct ispsoftc *isp; struct scsi_xfer *xs; int mswait; { while (mswait) { /* Try the interrupt handling routine */ (void)isp_intr((void *)isp); /* See if the xs is now done */ if (xs->flags & ITSDONE) return (0); delay(1000); /* wait one millisecond */ mswait--; } return (1); } int isp_intr(arg) void *arg; { struct scsi_xfer *xs; struct ispsoftc *isp = arg; u_int16_t iptr, optr, isr; isr = ISP_READ(isp, BIU_ISR); if (isr == 0 || (isr & BIU_ISR_RISC_INT) == 0) { #if 0 if (isr) { printf("%s: isp_intr isr=%x\n", isp->isp_name, isr); } #endif return (0); } optr = isp->isp_residx; iptr = ISP_READ(isp, OUTMAILBOX5); ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT); ISP_WRITE(isp, BIU_ICR, BIU_ICR_ENABLE_RISC_INT | BIU_ICR_ENABLE_ALL_INTS); if (ISP_READ(isp, BIU_SEMA) & 1) { u_int16_t mbox0 = ISP_READ(isp, OUTMAILBOX0); switch (mbox0) { case ASYNC_BUS_RESET: case ASYNC_TIMEOUT_RESET: printf("%s: bus or timeout reset\n", isp->isp_name); isp->isp_sendmarker = 1; break; default: printf("%s: async %x\n", isp->isp_name, mbox0); break; } ISP_WRITE(isp, BIU_SEMA, 0); #if 0 } else { if (optr == iptr) { printf("why'd we interrupt? isr %x iptr %x optr %x\n", isr, optr, iptr); } #endif } while (optr != iptr) { ispstatusreq_t *sp; int buddaboom = 0; sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr); optr = (optr + 1) & (RESULT_QUEUE_LEN-1); if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) { printf("%s: not RESPONSE in RESPONSE Queue (0x%x)\n", isp->isp_name, sp->req_header.rqs_entry_type); if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) { ISP_WRITE(isp, INMAILBOX5, optr); continue; } buddaboom = 1; } if (sp->req_header.rqs_flags & 0xf) { if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) { ISP_WRITE(isp, INMAILBOX5, optr); continue; } printf("%s: rqs_flags=%x\n", isp->isp_name, sp->req_header.rqs_flags & 0xf); } if (sp->req_handle >= RQUEST_QUEUE_LEN) { printf("%s: bad request handle %d\n", isp->isp_name, sp->req_handle); ISP_WRITE(isp, INMAILBOX5, optr); continue; } xs = (struct scsi_xfer *) isp->isp_xflist[sp->req_handle]; if (xs == NULL) { printf("%s: NULL xs in xflist\n", isp->isp_name); ISP_WRITE(isp, INMAILBOX5, optr); continue; } isp->isp_xflist[sp->req_handle] = NULL; if (sp->req_status_flags & RQSTF_BUS_RESET) { isp->isp_sendmarker = 1; } if (buddaboom) { xs->error = XS_DRIVER_STUFFUP; } if (sp->req_state_flags & RQSF_GOT_SENSE) { bcopy(sp->req_sense_data, &xs->sense, sizeof (xs->sense)); xs->error = XS_SENSE; } xs->status = sp->req_scsi_status; if (xs->error == 0 && xs->status == SCSI_BUSY) xs->error = XS_BUSY; if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) { if (xs->error == 0) xs->error = isp_parse_status(isp, sp); } else { printf("%s: unknown return %x\n", isp->isp_name, sp->req_header.rqs_entry_type); if (xs->error == 0) xs->error = XS_DRIVER_STUFFUP; } xs->resid = sp->req_resid; xs->flags |= ITSDONE; if (xs->datalen) { ISP_DMAFREE(isp, xs, sp->req_handle); } #if 0 printf("%s(%d.%d): FINISH%d cmd 0x%x resid %d STS %x", isp->isp_name, xs->sc_link->target, xs->sc_link->lun, sp->req_header.rqs_seqno, *(u_char *) xs->cmd, xs->resid, xs->status); if (sp->req_state_flags & RQSF_GOT_SENSE) { printf(" Skey: %x", xs->sense.flags); if (xs->error != XS_SENSE) { printf(" BUT NOT SET"); } } printf(" xs->error %d\n", xs->error); #endif ISP_WRITE(isp, INMAILBOX5, optr); scsi_done(xs); } isp->isp_residx = optr; return (1); } /* * Support routines. */ static int isp_parse_status(isp, sp) struct ispsoftc *isp; ispstatusreq_t *sp; { switch (sp->req_completion_status) { case RQCS_COMPLETE: return (XS_NOERROR); break; case RQCS_INCOMPLETE: if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) { return (XS_SELTIMEOUT); } printf("%s: incomplete, state %x\n", isp->isp_name, sp->req_state_flags); break; case RQCS_DATA_UNDERRUN: return (XS_NOERROR); case RQCS_TIMEOUT: return (XS_TIMEOUT); case RQCS_RESET_OCCURRED: printf("%s: reset occurred\n", isp->isp_name); isp->isp_sendmarker = 1; break; case RQCS_ABORTED: printf("%s: command aborted\n", isp->isp_name); isp->isp_sendmarker = 1; break; default: printf("%s: comp status %x\n", isp->isp_name, sp->req_completion_status); break; } return (XS_DRIVER_STUFFUP); } #define HINIB(x) ((x) >> 0x4) #define LONIB(x) ((x) & 0xf) #define MAKNIB(a, b) (((a) << 4) | (b)) static u_int8_t mbpcnt[] = { MAKNIB(1, 1), /* MBOX_NO_OP */ MAKNIB(5, 5), /* MBOX_LOAD_RAM */ MAKNIB(2, 0), /* MBOX_EXEC_FIRMWARE */ MAKNIB(5, 5), /* MBOX_DUMP_RAM */ MAKNIB(3, 3), /* MBOX_WRITE_RAM_WORD */ MAKNIB(2, 3), /* MBOX_READ_RAM_WORD */ MAKNIB(6, 6), /* MBOX_MAILBOX_REG_TEST */ MAKNIB(2, 3), /* MBOX_VERIFY_CHECKSUM */ MAKNIB(1, 3), /* MBOX_ABOUT_FIRMWARE */ MAKNIB(0, 0), /* 0x0009 */ MAKNIB(0, 0), /* 0x000a */ MAKNIB(0, 0), /* 0x000b */ MAKNIB(0, 0), /* 0x000c */ MAKNIB(0, 0), /* 0x000d */ MAKNIB(1, 2), /* MBOX_CHECK_FIRMWARE */ MAKNIB(0, 0), /* 0x000f */ MAKNIB(5, 5), /* MBOX_INIT_REQ_QUEUE */ MAKNIB(6, 6), /* MBOX_INIT_RES_QUEUE */ MAKNIB(4, 4), /* MBOX_EXECUTE_IOCB */ MAKNIB(2, 2), /* MBOX_WAKE_UP */ MAKNIB(1, 6), /* MBOX_STOP_FIRMWARE */ MAKNIB(4, 4), /* MBOX_ABORT */ MAKNIB(2, 2), /* MBOX_ABORT_DEVICE */ MAKNIB(3, 3), /* MBOX_ABORT_TARGET */ MAKNIB(2, 2), /* MBOX_BUS_RESET */ MAKNIB(2, 3), /* MBOX_STOP_QUEUE */ MAKNIB(2, 3), /* MBOX_START_QUEUE */ MAKNIB(2, 3), /* MBOX_SINGLE_STEP_QUEUE */ MAKNIB(2, 3), /* MBOX_ABORT_QUEUE */ MAKNIB(2, 4), /* MBOX_GET_DEV_QUEUE_STATUS */ MAKNIB(0, 0), /* 0x001e */ MAKNIB(1, 3), /* MBOX_GET_FIRMWARE_STATUS */ MAKNIB(1, 2), /* MBOX_GET_INIT_SCSI_ID */ MAKNIB(1, 2), /* MBOX_GET_SELECT_TIMEOUT */ MAKNIB(1, 3), /* MBOX_GET_RETRY_COUNT */ MAKNIB(1, 2), /* MBOX_GET_TAG_AGE_LIMIT */ MAKNIB(1, 2), /* MBOX_GET_CLOCK_RATE */ MAKNIB(1, 2), /* MBOX_GET_ACT_NEG_STATE */ MAKNIB(1, 2), /* MBOX_GET_ASYNC_DATA_SETUP_TIME */ MAKNIB(1, 3), /* MBOX_GET_PCI_PARAMS */ MAKNIB(2, 4), /* MBOX_GET_TARGET_PARAMS */ MAKNIB(2, 4), /* MBOX_GET_DEV_QUEUE_PARAMS */ MAKNIB(0, 0), /* 0x002a */ MAKNIB(0, 0), /* 0x002b */ MAKNIB(0, 0), /* 0x002c */ MAKNIB(0, 0), /* 0x002d */ MAKNIB(0, 0), /* 0x002e */ MAKNIB(0, 0), /* 0x002f */ MAKNIB(2, 2), /* MBOX_SET_INIT_SCSI_ID */ MAKNIB(2, 2), /* MBOX_SET_SELECT_TIMEOUT */ MAKNIB(3, 3), /* MBOX_SET_RETRY_COUNT */ MAKNIB(2, 2), /* MBOX_SET_TAG_AGE_LIMIT */ MAKNIB(2, 2), /* MBOX_SET_CLOCK_RATE */ MAKNIB(2, 2), /* MBOX_SET_ACTIVE_NEG_STATE */ MAKNIB(2, 2), /* MBOX_SET_ASYNC_DATA_SETUP_TIME */ MAKNIB(3, 3), /* MBOX_SET_PCI_CONTROL_PARAMS */ MAKNIB(4, 4), /* MBOX_SET_TARGET_PARAMS */ MAKNIB(4, 4), /* MBOX_SET_DEV_QUEUE_PARAMS */ MAKNIB(0, 0), /* 0x003a */ MAKNIB(0, 0), /* 0x003b */ MAKNIB(0, 0), /* 0x003c */ MAKNIB(0, 0), /* 0x003d */ MAKNIB(0, 0), /* 0x003e */ MAKNIB(0, 0), /* 0x003f */ MAKNIB(1, 2), /* MBOX_RETURN_BIOS_BLOCK_ADDR */ MAKNIB(6, 1), /* MBOX_WRITE_FOUR_RAM_WORDS */ MAKNIB(2, 3) /* MBOX_EXEC_BIOS_IOCB */ }; #define NMBCOM (sizeof (mbpcnt) / sizeof (mbpcnt[0])) static int isp_mboxcmd(isp, mbp) struct ispsoftc *isp; mbreg_t *mbp; { int outparam, inparam; int loops; if (mbp->param[0] > NMBCOM) { printf("%s: bad command %x\n", isp->isp_name, mbp->param[0]); return (-1); } inparam = HINIB(mbpcnt[mbp->param[0]]); outparam = LONIB(mbpcnt[mbp->param[0]]); if (inparam == 0 && outparam == 0) { printf("%s: no parameters for %x\n", isp->isp_name, mbp->param[0]); return (-1); } /* * Make sure we can send some words.. */ loops = MBOX_DELAY_COUNT; while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) { delay(100); if (--loops < 0) { printf("%s: isp_mboxcmd timeout #1\n", isp->isp_name); return (-1); } } /* * Write input parameters */ switch (inparam) { case 6: ISP_WRITE(isp, INMAILBOX5, mbp->param[5]); mbp->param[5] = 0; case 5: ISP_WRITE(isp, INMAILBOX4, mbp->param[4]); mbp->param[4] = 0; case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0; case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0; case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0; case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0; } /* * Clear semaphore on mailbox registers */ ISP_WRITE(isp, BIU_SEMA, 0); /* * Clear RISC int condition. */ ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT); /* * Set Host Interrupt condition so that RISC will pick up mailbox regs. */ ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT); /* * Wait until RISC int is set */ loops = MBOX_DELAY_COUNT; while ((ISP_READ(isp, BIU_ISR) & BIU_ISR_RISC_INT) != 0) { delay(100); if (--loops < 0) { printf("%s: isp_mboxcmd timeout #2\n", isp->isp_name); return (-1); } } /* * Check to make sure that the semaphore has been set. */ loops = MBOX_DELAY_COUNT; while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) { delay(100); if (--loops < 0) { printf("%s: isp_mboxcmd timeout #3\n", isp->isp_name); return (-1); } } /* * Make sure that the MBOX_BUSY has gone away */ loops = MBOX_DELAY_COUNT; while (ISP_READ(isp, OUTMAILBOX0) == MBOX_BUSY) { delay(100); if (--loops < 0) { printf("%s: isp_mboxcmd timeout #4\n", isp->isp_name); return (-1); } } /* * Pick up output parameters. */ switch (outparam) { case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5); case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4); case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3); case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2); case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1); case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0); } /* * Clear RISC int. */ ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT); /* * Release semaphore on mailbox registers */ ISP_WRITE(isp, BIU_SEMA, 0); return (0); } static void isp_lostcmd(struct ispsoftc *isp, struct scsi_xfer *xs) { mbreg_t mbs; mbs.param[0] = MBOX_GET_FIRMWARE_STATUS; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("%s: couldn't GET FIRMWARE STATUS\n", isp->isp_name); return; } printf("%s: lost command, %d commands active of total %d\n", isp->isp_name, mbs.param[1], mbs.param[2]); if (xs == NULL || xs->sc_link == NULL) return; mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS; mbs.param[1] = xs->sc_link->target << 8 | xs->sc_link->lun; (void) isp_mboxcmd(isp, &mbs); if (mbs.param[0] != MBOX_COMMAND_COMPLETE) { printf("%s: couldn't GET DEVICE STATUS\n", isp->isp_name); return; } printf("%s: lost command, target %d lun %d, State: %x\n", isp->isp_name, mbs.param[1] >> 8, mbs.param[1] & 0x7, mbs.param[2] & 0xff); }