1187 lines
32 KiB
C
1187 lines
32 KiB
C
/* $FreeBSD$ */
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/*
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* Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters.
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*
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* Copyright (c) 1999, 2000, 2001 by Matthew Jacob
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* All rights reserved.
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* mjacob@feral.com
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Bug fixes gratefully acknowledged from:
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* Oded Kedem <oded@kashya.com>
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*/
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/*
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* Include header file appropriate for platform we're building on.
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*/
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#ifdef __NetBSD__
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#include <dev/ic/isp_netbsd.h>
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#endif
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#ifdef __FreeBSD__
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#include <dev/isp/isp_freebsd.h>
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#endif
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#ifdef __OpenBSD__
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#include <dev/ic/isp_openbsd.h>
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#endif
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#ifdef __linux__
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#include "isp_linux.h"
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#endif
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#ifdef ISP_TARGET_MODE
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static const char atiocope[] =
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"ATIO returned for lun %d because it was in the middle of Bus Device Reset "
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"on bus %d";
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static const char atior[] =
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"ATIO returned on for lun %d on from IID %d because a Bus Reset occurred "
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"on bus %d";
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static void isp_got_msg(struct ispsoftc *, int, in_entry_t *);
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static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *);
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static void isp_notify_ack(struct ispsoftc *, void *);
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static void isp_handle_atio(struct ispsoftc *, at_entry_t *);
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static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *);
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static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *);
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static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *);
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/*
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* The Qlogic driver gets an interrupt to look at response queue entries.
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* Some of these are status completions for initiatior mode commands, but
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* if target mode is enabled, we get a whole wad of response queue entries
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* to be handled here.
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*
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* Basically the split into 3 main groups: Lun Enable/Modification responses,
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* SCSI Command processing, and Immediate Notification events.
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*
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* You start by writing a request queue entry to enable target mode (and
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* establish some resource limitations which you can modify later).
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* The f/w responds with a LUN ENABLE or LUN MODIFY response with
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* the status of this action. If the enable was successful, you can expect...
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*
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* Response queue entries with SCSI commands encapsulate show up in an ATIO
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* (Accept Target IO) type- sometimes with enough info to stop the command at
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* this level. Ultimately the driver has to feed back to the f/w's request
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* queue a sequence of CTIOs (continue target I/O) that describe data to
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* be moved and/or status to be sent) and finally finishing with sending
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* to the f/w's response queue an ATIO which then completes the handshake
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* with the f/w for that command. There's a lot of variations on this theme,
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* including flags you can set in the CTIO for the Qlogic 2X00 fibre channel
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* cards that 'auto-replenish' the f/w's ATIO count, but this is the basic
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* gist of it.
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*
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* The third group that can show up in the response queue are Immediate
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* Notification events. These include things like notifications of SCSI bus
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* resets, or Bus Device Reset messages or other messages received. This
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* a classic oddbins area. It can get a little weird because you then turn
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* around and acknowledge the Immediate Notify by writing an entry onto the
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* request queue and then the f/w turns around and gives you an acknowledgement
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* to *your* acknowledgement on the response queue (the idea being to let
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* the f/w tell you when the event is *really* over I guess).
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*
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*/
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/*
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* A new response queue entry has arrived. The interrupt service code
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* has already swizzled it into the platform dependent from canonical form.
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*
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* Because of the way this driver is designed, unfortunately most of the
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* actual synchronization work has to be done in the platform specific
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* code- we have no synchroniation primitives in the common code.
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*/
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int
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isp_target_notify(struct ispsoftc *isp, void *vptr, u_int16_t *optrp)
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{
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u_int16_t status, seqid;
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union {
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at_entry_t *atiop;
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at2_entry_t *at2iop;
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ct_entry_t *ctiop;
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ct2_entry_t *ct2iop;
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lun_entry_t *lunenp;
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in_entry_t *inotp;
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in_fcentry_t *inot_fcp;
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na_entry_t *nackp;
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na_fcentry_t *nack_fcp;
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isphdr_t *hp;
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void * *vp;
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#define atiop unp.atiop
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#define at2iop unp.at2iop
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#define ctiop unp.ctiop
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#define ct2iop unp.ct2iop
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#define lunenp unp.lunenp
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#define inotp unp.inotp
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#define inot_fcp unp.inot_fcp
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#define nackp unp.nackp
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#define nack_fcp unp.nack_fcp
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#define hdrp unp.hp
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} unp;
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u_int8_t local[QENTRY_LEN];
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int bus, type, rval = 1;
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type = isp_get_response_type(isp, (isphdr_t *)vptr);
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unp.vp = vptr;
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ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr);
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switch(type) {
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case RQSTYPE_ATIO:
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isp_get_atio(isp, atiop, (at_entry_t *) local);
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isp_handle_atio(isp, (at_entry_t *) local);
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break;
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case RQSTYPE_CTIO:
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isp_get_ctio(isp, ctiop, (ct_entry_t *) local);
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isp_handle_ctio(isp, (ct_entry_t *) local);
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break;
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case RQSTYPE_ATIO2:
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isp_get_atio2(isp, at2iop, (at2_entry_t *) local);
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isp_handle_atio2(isp, (at2_entry_t *) local);
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break;
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case RQSTYPE_CTIO2:
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isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local);
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isp_handle_ctio2(isp, (ct2_entry_t *) local);
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break;
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case RQSTYPE_ENABLE_LUN:
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case RQSTYPE_MODIFY_LUN:
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isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local);
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(void) isp_async(isp, ISPASYNC_TARGET_ACTION, local);
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break;
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case RQSTYPE_NOTIFY:
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/*
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* Either the ISP received a SCSI message it can't
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* handle, or it's returning an Immed. Notify entry
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* we sent. We can send Immed. Notify entries to
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* increment the firmware's resource count for them
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* (we set this initially in the Enable Lun entry).
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*/
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bus = 0;
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if (IS_FC(isp)) {
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isp_get_notify_fc(isp, inot_fcp, (in_fcentry_t *)local);
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inot_fcp = (in_fcentry_t *) local;
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status = inot_fcp->in_status;
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seqid = inot_fcp->in_seqid;
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} else {
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isp_get_notify(isp, inotp, (in_entry_t *)local);
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inotp = (in_entry_t *) local;
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status = inotp->in_status & 0xff;
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seqid = inotp->in_seqid;
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if (IS_DUALBUS(isp)) {
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bus = GET_BUS_VAL(inotp->in_iid);
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SET_BUS_VAL(inotp->in_iid, 0);
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}
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}
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isp_prt(isp, ISP_LOGTDEBUG0,
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"Immediate Notify On Bus %d, status=0x%x seqid=0x%x",
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bus, status, seqid);
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/*
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* ACK it right away.
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*/
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isp_notify_ack(isp, (status == IN_RESET)? NULL : local);
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switch (status) {
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case IN_RESET:
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(void) isp_async(isp, ISPASYNC_BUS_RESET, &bus);
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break;
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case IN_MSG_RECEIVED:
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case IN_IDE_RECEIVED:
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if (IS_FC(isp)) {
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isp_got_msg_fc(isp, bus, (in_fcentry_t *)local);
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} else {
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isp_got_msg(isp, bus, (in_entry_t *)local);
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}
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break;
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case IN_RSRC_UNAVAIL:
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isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs");
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break;
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case IN_PORT_LOGOUT:
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case IN_ABORT_TASK:
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case IN_PORT_CHANGED:
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case IN_GLOBAL_LOGO:
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(void) isp_async(isp, ISPASYNC_TARGET_ACTION, &local);
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break;
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default:
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isp_prt(isp, ISP_LOGERR,
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"bad status (0x%x) in isp_target_notify", status);
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break;
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}
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break;
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case RQSTYPE_NOTIFY_ACK:
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/*
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* The ISP is acknowledging our acknowledgement of an
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* Immediate Notify entry for some asynchronous event.
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*/
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if (IS_FC(isp)) {
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isp_get_notify_ack_fc(isp, nack_fcp,
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(na_fcentry_t *)local);
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nack_fcp = (na_fcentry_t *)local;
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isp_prt(isp, ISP_LOGTDEBUG1,
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"Notify Ack status=0x%x seqid 0x%x",
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nack_fcp->na_status, nack_fcp->na_seqid);
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} else {
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isp_get_notify_ack(isp, nackp, (na_entry_t *)local);
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nackp = (na_entry_t *)local;
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isp_prt(isp, ISP_LOGTDEBUG1,
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"Notify Ack event 0x%x status=0x%x seqid 0x%x",
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nackp->na_event, nackp->na_status, nackp->na_seqid);
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}
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break;
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default:
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isp_prt(isp, ISP_LOGERR,
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"Unknown entry type 0x%x in isp_target_notify", type);
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rval = 0;
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break;
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}
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#undef atiop
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#undef at2iop
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#undef ctiop
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#undef ct2iop
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#undef lunenp
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#undef inotp
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#undef inot_fcp
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#undef nackp
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#undef nack_fcp
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#undef hdrp
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return (rval);
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}
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/*
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* Toggle (on/off) target mode for bus/target/lun
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*
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* The caller has checked for overlap and legality.
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*
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* Note that not all of bus, target or lun can be paid attention to.
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* Note also that this action will not be complete until the f/w writes
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* response entry. The caller is responsible for synchronizing this.
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*/
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int
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isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun,
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int cmd_cnt, int inot_cnt, u_int32_t opaque)
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{
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lun_entry_t el;
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u_int16_t nxti, optr;
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void *outp;
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MEMZERO(&el, sizeof (el));
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if (IS_DUALBUS(isp)) {
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el.le_rsvd = (bus & 0x1) << 7;
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}
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el.le_cmd_count = cmd_cnt;
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el.le_in_count = inot_cnt;
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if (cmd == RQSTYPE_ENABLE_LUN) {
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if (IS_SCSI(isp)) {
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el.le_flags = LUN_TQAE|LUN_DISAD;
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el.le_cdb6len = 12;
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el.le_cdb7len = 12;
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}
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} else if (cmd == -RQSTYPE_ENABLE_LUN) {
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cmd = RQSTYPE_ENABLE_LUN;
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el.le_cmd_count = 0;
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el.le_in_count = 0;
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} else if (cmd == -RQSTYPE_MODIFY_LUN) {
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cmd = RQSTYPE_MODIFY_LUN;
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el.le_ops = LUN_CCDECR | LUN_INDECR;
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} else {
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el.le_ops = LUN_CCINCR | LUN_ININCR;
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}
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el.le_header.rqs_entry_type = cmd;
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el.le_header.rqs_entry_count = 1;
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el.le_reserved = opaque;
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if (IS_SCSI(isp)) {
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el.le_tgt = tgt;
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el.le_lun = lun;
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} else if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) {
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el.le_lun = lun;
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}
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el.le_timeout = 2;
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if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
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isp_prt(isp, ISP_LOGERR,
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"Request Queue Overflow in isp_lun_cmd");
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return (-1);
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}
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ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el);
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isp_put_enable_lun(isp, &el, outp);
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ISP_ADD_REQUEST(isp, nxti);
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return (0);
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}
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int
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isp_target_put_entry(struct ispsoftc *isp, void *ap)
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{
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void *outp;
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u_int16_t nxti, optr;
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u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type;
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if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
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isp_prt(isp, ISP_LOGWARN,
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"Request Queue Overflow in isp_target_put_entry");
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return (-1);
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}
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switch (etype) {
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case RQSTYPE_ATIO:
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isp_put_atio(isp, (at_entry_t *) ap, (at_entry_t *) outp);
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break;
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case RQSTYPE_ATIO2:
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isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp);
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break;
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case RQSTYPE_CTIO:
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isp_put_ctio(isp, (ct_entry_t *) ap, (ct_entry_t *) outp);
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break;
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case RQSTYPE_CTIO2:
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isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp);
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break;
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default:
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isp_prt(isp, ISP_LOGERR,
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"Unknown type 0x%x in isp_put_entry", etype);
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return (-1);
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}
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ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);;
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ISP_ADD_REQUEST(isp, nxti);
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return (0);
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}
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int
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isp_target_put_atio(struct ispsoftc *isp, void *arg)
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{
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union {
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at_entry_t _atio;
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at2_entry_t _atio2;
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} atun;
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MEMZERO(&atun, sizeof atun);
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if (IS_FC(isp)) {
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at2_entry_t *aep = arg;
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atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2;
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atun._atio2.at_header.rqs_entry_count = 1;
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if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
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atun._atio2.at_scclun = (u_int16_t) aep->at_scclun;
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} else {
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atun._atio2.at_lun = (u_int8_t) aep->at_lun;
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}
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atun._atio2.at_status = CT_OK;
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} else {
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at_entry_t *aep = arg;
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atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO;
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atun._atio.at_header.rqs_entry_count = 1;
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atun._atio.at_handle = aep->at_handle;
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atun._atio.at_iid = aep->at_iid;
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atun._atio.at_tgt = aep->at_tgt;
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atun._atio.at_lun = aep->at_lun;
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atun._atio.at_tag_type = aep->at_tag_type;
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atun._atio.at_tag_val = aep->at_tag_val;
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atun._atio.at_status = (aep->at_flags & AT_TQAE);
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atun._atio.at_status |= CT_OK;
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}
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return (isp_target_put_entry(isp, &atun));
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}
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|
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/*
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* Command completion- both for handling cases of no resources or
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* no blackhole driver, or other cases where we have to, inline,
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* finish the command sanely, or for normal command completion.
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*
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* The 'completion' code value has the scsi status byte in the low 8 bits.
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* If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have
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* the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC
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* values.
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*
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* NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't
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* NB: inline SCSI sense reporting. As such, we lose this information. XXX.
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*
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* For both parallel && fibre channel, we use the feature that does
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* an automatic resource autoreplenish so we don't have then later do
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* put of an atio to replenish the f/w's resource count.
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*/
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|
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int
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isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl)
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{
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int sts;
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union {
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ct_entry_t _ctio;
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ct2_entry_t _ctio2;
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} un;
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MEMZERO(&un, sizeof un);
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sts = code & 0xff;
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if (IS_FC(isp)) {
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at2_entry_t *aep = arg;
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ct2_entry_t *cto = &un._ctio2;
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cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
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cto->ct_header.rqs_entry_count = 1;
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cto->ct_iid = aep->at_iid;
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if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) {
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cto->ct_lun = aep->at_lun;
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}
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cto->ct_rxid = aep->at_rxid;
|
|
cto->rsp.m1.ct_scsi_status = sts & 0xff;
|
|
cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1;
|
|
if (hdl == 0) {
|
|
cto->ct_flags |= CT2_CCINCR;
|
|
}
|
|
if (aep->at_datalen) {
|
|
cto->ct_resid = aep->at_datalen;
|
|
cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
|
|
}
|
|
if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) {
|
|
cto->rsp.m1.ct_resp[0] = 0xf0;
|
|
cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf;
|
|
cto->rsp.m1.ct_resp[7] = 8;
|
|
cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff;
|
|
cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff;
|
|
cto->rsp.m1.ct_senselen = 16;
|
|
cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
|
|
}
|
|
cto->ct_syshandle = hdl;
|
|
} else {
|
|
at_entry_t *aep = arg;
|
|
ct_entry_t *cto = &un._ctio;
|
|
|
|
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO;
|
|
cto->ct_header.rqs_entry_count = 1;
|
|
cto->ct_fwhandle = aep->at_handle;
|
|
cto->ct_iid = aep->at_iid;
|
|
cto->ct_tgt = aep->at_tgt;
|
|
cto->ct_lun = aep->at_lun;
|
|
cto->ct_tag_type = aep->at_tag_type;
|
|
cto->ct_tag_val = aep->at_tag_val;
|
|
if (aep->at_flags & AT_TQAE) {
|
|
cto->ct_flags |= CT_TQAE;
|
|
}
|
|
cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA;
|
|
if (hdl == 0) {
|
|
cto->ct_flags |= CT_CCINCR;
|
|
}
|
|
cto->ct_scsi_status = sts;
|
|
cto->ct_syshandle = hdl;
|
|
}
|
|
return (isp_target_put_entry(isp, &un));
|
|
}
|
|
|
|
int
|
|
isp_target_async(struct ispsoftc *isp, int bus, int event)
|
|
{
|
|
tmd_event_t evt;
|
|
tmd_msg_t msg;
|
|
|
|
switch (event) {
|
|
/*
|
|
* These three we handle here to propagate an effective bus reset
|
|
* upstream, but these do not require any immediate notify actions
|
|
* so we return when done.
|
|
*/
|
|
case ASYNC_LIP_F8:
|
|
case ASYNC_LIP_OCCURRED:
|
|
case ASYNC_LOOP_UP:
|
|
case ASYNC_LOOP_DOWN:
|
|
case ASYNC_LOOP_RESET:
|
|
case ASYNC_PTPMODE:
|
|
/*
|
|
* These don't require any immediate notify actions. We used
|
|
* treat them like SCSI Bus Resets, but that was just plain
|
|
* wrong. Let the normal CTIO completion report what occurred.
|
|
*/
|
|
return (0);
|
|
|
|
case ASYNC_BUS_RESET:
|
|
case ASYNC_TIMEOUT_RESET:
|
|
if (IS_FC(isp)) {
|
|
return (0); /* we'll be getting an inotify instead */
|
|
}
|
|
evt.ev_bus = bus;
|
|
evt.ev_event = event;
|
|
(void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt);
|
|
break;
|
|
case ASYNC_DEVICE_RESET:
|
|
/*
|
|
* Bus Device Reset resets a specific target, so
|
|
* we pass this as a synthesized message.
|
|
*/
|
|
MEMZERO(&msg, sizeof msg);
|
|
if (IS_FC(isp)) {
|
|
msg.nt_iid = FCPARAM(isp)->isp_loopid;
|
|
} else {
|
|
msg.nt_iid = SDPARAM(isp)->isp_initiator_id;
|
|
}
|
|
msg.nt_bus = bus;
|
|
msg.nt_msg[0] = MSG_BUS_DEV_RESET;
|
|
(void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
|
|
break;
|
|
default:
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"isp_target_async: unknown event 0x%x", event);
|
|
break;
|
|
}
|
|
if (isp->isp_state == ISP_RUNSTATE)
|
|
isp_notify_ack(isp, NULL);
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Process a received message.
|
|
* The ISP firmware can handle most messages, there are only
|
|
* a few that we need to deal with:
|
|
* - abort: clean up the current command
|
|
* - abort tag and clear queue
|
|
*/
|
|
|
|
static void
|
|
isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp)
|
|
{
|
|
u_int8_t status = inp->in_status & ~QLTM_SVALID;
|
|
|
|
if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) {
|
|
tmd_msg_t msg;
|
|
|
|
MEMZERO(&msg, sizeof (msg));
|
|
msg.nt_bus = bus;
|
|
msg.nt_iid = inp->in_iid;
|
|
msg.nt_tgt = inp->in_tgt;
|
|
msg.nt_lun = inp->in_lun;
|
|
msg.nt_tagtype = inp->in_tag_type;
|
|
msg.nt_tagval = inp->in_tag_val;
|
|
MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN);
|
|
(void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
|
|
} else {
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"unknown immediate notify status 0x%x", inp->in_status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Synthesize a message from the task management flags in a FCP_CMND_IU.
|
|
*/
|
|
static void
|
|
isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp)
|
|
{
|
|
int lun;
|
|
static const char f1[] = "%s from iid %d lun %d seq 0x%x";
|
|
static const char f2[] =
|
|
"unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n";
|
|
|
|
if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
|
|
lun = inp->in_scclun;
|
|
} else {
|
|
lun = inp->in_lun;
|
|
}
|
|
|
|
if (inp->in_status != IN_MSG_RECEIVED) {
|
|
isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status",
|
|
inp->in_status, lun, inp->in_iid,
|
|
inp->in_task_flags, inp->in_seqid);
|
|
} else {
|
|
tmd_msg_t msg;
|
|
|
|
MEMZERO(&msg, sizeof (msg));
|
|
msg.nt_bus = bus;
|
|
msg.nt_iid = inp->in_iid;
|
|
msg.nt_tagval = inp->in_seqid;
|
|
msg.nt_lun = lun;
|
|
|
|
if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) {
|
|
isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK",
|
|
inp->in_iid, msg.nt_lun, inp->in_seqid);
|
|
msg.nt_msg[0] = MSG_ABORT_TAG;
|
|
} else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) {
|
|
isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET",
|
|
inp->in_iid, msg.nt_lun, inp->in_seqid);
|
|
msg.nt_msg[0] = MSG_CLEAR_QUEUE;
|
|
} else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) {
|
|
isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET",
|
|
inp->in_iid, msg.nt_lun, inp->in_seqid);
|
|
msg.nt_msg[0] = MSG_BUS_DEV_RESET;
|
|
} else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) {
|
|
isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA",
|
|
inp->in_iid, msg.nt_lun, inp->in_seqid);
|
|
/* ???? */
|
|
msg.nt_msg[0] = MSG_REL_RECOVERY;
|
|
} else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) {
|
|
isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK",
|
|
inp->in_iid, msg.nt_lun, inp->in_seqid);
|
|
msg.nt_msg[0] = MSG_TERM_IO_PROC;
|
|
} else {
|
|
isp_prt(isp, ISP_LOGWARN, f2, "task flag",
|
|
inp->in_status, msg.nt_lun, inp->in_iid,
|
|
inp->in_task_flags, inp->in_seqid);
|
|
}
|
|
if (msg.nt_msg[0]) {
|
|
(void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
isp_notify_ack(struct ispsoftc *isp, void *arg)
|
|
{
|
|
char storage[QENTRY_LEN];
|
|
u_int16_t nxti, optr;
|
|
void *outp;
|
|
|
|
if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
|
|
isp_prt(isp, ISP_LOGWARN,
|
|
"Request Queue Overflow For isp_notify_ack");
|
|
return;
|
|
}
|
|
|
|
MEMZERO(storage, QENTRY_LEN);
|
|
|
|
if (IS_FC(isp)) {
|
|
na_fcentry_t *na = (na_fcentry_t *) storage;
|
|
if (arg) {
|
|
in_fcentry_t *inp = arg;
|
|
MEMCPY(storage, arg, sizeof (isphdr_t));
|
|
na->na_iid = inp->in_iid;
|
|
if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
|
|
na->na_lun = inp->in_scclun;
|
|
} else {
|
|
na->na_lun = inp->in_lun;
|
|
}
|
|
na->na_task_flags = inp->in_task_flags;
|
|
na->na_seqid = inp->in_seqid;
|
|
na->na_flags = NAFC_RCOUNT;
|
|
na->na_status = inp->in_status;
|
|
if (inp->in_status == IN_RESET) {
|
|
na->na_flags |= NAFC_RST_CLRD;
|
|
}
|
|
} else {
|
|
na->na_flags = NAFC_RST_CLRD;
|
|
}
|
|
na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
|
|
na->na_header.rqs_entry_count = 1;
|
|
isp_put_notify_ack_fc(isp, na, (na_fcentry_t *)outp);
|
|
} else {
|
|
na_entry_t *na = (na_entry_t *) storage;
|
|
if (arg) {
|
|
in_entry_t *inp = arg;
|
|
MEMCPY(storage, arg, sizeof (isphdr_t));
|
|
na->na_iid = inp->in_iid;
|
|
na->na_lun = inp->in_lun;
|
|
na->na_tgt = inp->in_tgt;
|
|
na->na_seqid = inp->in_seqid;
|
|
if (inp->in_status == IN_RESET) {
|
|
na->na_event = NA_RST_CLRD;
|
|
}
|
|
} else {
|
|
na->na_event = NA_RST_CLRD;
|
|
}
|
|
na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
|
|
na->na_header.rqs_entry_count = 1;
|
|
isp_put_notify_ack(isp, na, (na_entry_t *)outp);
|
|
}
|
|
ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage);
|
|
ISP_ADD_REQUEST(isp, nxti);
|
|
}
|
|
|
|
static void
|
|
isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep)
|
|
{
|
|
int lun;
|
|
lun = aep->at_lun;
|
|
/*
|
|
* The firmware status (except for the QLTM_SVALID bit) indicates
|
|
* why this ATIO was sent to us.
|
|
*
|
|
* If QLTM_SVALID is set, the firware has recommended Sense Data.
|
|
*
|
|
* If the DISCONNECTS DISABLED bit is set in the flags field,
|
|
* we're still connected on the SCSI bus - i.e. the initiator
|
|
* did not set DiscPriv in the identify message. We don't care
|
|
* about this so it's ignored.
|
|
*/
|
|
|
|
switch(aep->at_status & ~QLTM_SVALID) {
|
|
case AT_PATH_INVALID:
|
|
/*
|
|
* ATIO rejected by the firmware due to disabled lun.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"rejected ATIO for disabled lun %d", lun);
|
|
break;
|
|
case AT_NOCAP:
|
|
/*
|
|
* Requested Capability not available
|
|
* We sent an ATIO that overflowed the firmware's
|
|
* command resource count.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"rejected ATIO for lun %d because of command count"
|
|
" overflow", lun);
|
|
break;
|
|
|
|
case AT_BDR_MSG:
|
|
/*
|
|
* If we send an ATIO to the firmware to increment
|
|
* its command resource count, and the firmware is
|
|
* recovering from a Bus Device Reset, it returns
|
|
* the ATIO with this status. We set the command
|
|
* resource count in the Enable Lun entry and do
|
|
* not increment it. Therefore we should never get
|
|
* this status here.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR, atiocope, lun,
|
|
GET_BUS_VAL(aep->at_iid));
|
|
break;
|
|
|
|
case AT_CDB: /* Got a CDB */
|
|
case AT_PHASE_ERROR: /* Bus Phase Sequence Error */
|
|
/*
|
|
* Punt to platform specific layer.
|
|
*/
|
|
(void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep);
|
|
break;
|
|
|
|
case AT_RESET:
|
|
/*
|
|
* A bus reset came along an blew away this command. Why
|
|
* they do this in addition the async event code stuff,
|
|
* I dunno.
|
|
*
|
|
* Ignore it because the async event will clear things
|
|
* up for us.
|
|
*/
|
|
isp_prt(isp, ISP_LOGWARN, atior, lun,
|
|
GET_IID_VAL(aep->at_iid), GET_BUS_VAL(aep->at_iid));
|
|
break;
|
|
|
|
|
|
default:
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"Unknown ATIO status 0x%x from initiator %d for lun %d",
|
|
aep->at_status, aep->at_iid, lun);
|
|
(void) isp_target_put_atio(isp, aep);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
isp_handle_atio2(struct ispsoftc *isp, at2_entry_t *aep)
|
|
{
|
|
int lun;
|
|
|
|
if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
|
|
lun = aep->at_scclun;
|
|
} else {
|
|
lun = aep->at_lun;
|
|
}
|
|
|
|
/*
|
|
* The firmware status (except for the QLTM_SVALID bit) indicates
|
|
* why this ATIO was sent to us.
|
|
*
|
|
* If QLTM_SVALID is set, the firware has recommended Sense Data.
|
|
*
|
|
* If the DISCONNECTS DISABLED bit is set in the flags field,
|
|
* we're still connected on the SCSI bus - i.e. the initiator
|
|
* did not set DiscPriv in the identify message. We don't care
|
|
* about this so it's ignored.
|
|
*/
|
|
|
|
switch(aep->at_status & ~QLTM_SVALID) {
|
|
case AT_PATH_INVALID:
|
|
/*
|
|
* ATIO rejected by the firmware due to disabled lun.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"rejected ATIO2 for disabled lun %d", lun);
|
|
break;
|
|
case AT_NOCAP:
|
|
/*
|
|
* Requested Capability not available
|
|
* We sent an ATIO that overflowed the firmware's
|
|
* command resource count.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"rejected ATIO2 for lun %d- command count overflow", lun);
|
|
break;
|
|
|
|
case AT_BDR_MSG:
|
|
/*
|
|
* If we send an ATIO to the firmware to increment
|
|
* its command resource count, and the firmware is
|
|
* recovering from a Bus Device Reset, it returns
|
|
* the ATIO with this status. We set the command
|
|
* resource count in the Enable Lun entry and no
|
|
* not increment it. Therefore we should never get
|
|
* this status here.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR, atiocope, lun, 0);
|
|
break;
|
|
|
|
case AT_CDB: /* Got a CDB */
|
|
/*
|
|
* Punt to platform specific layer.
|
|
*/
|
|
(void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep);
|
|
break;
|
|
|
|
case AT_RESET:
|
|
/*
|
|
* A bus reset came along an blew away this command. Why
|
|
* they do this in addition the async event code stuff,
|
|
* I dunno.
|
|
*
|
|
* Ignore it because the async event will clear things
|
|
* up for us.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid, 0);
|
|
break;
|
|
|
|
|
|
default:
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"Unknown ATIO2 status 0x%x from initiator %d for lun %d",
|
|
aep->at_status, aep->at_iid, lun);
|
|
(void) isp_target_put_atio(isp, aep);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct)
|
|
{
|
|
void *xs;
|
|
int pl = ISP_LOGTDEBUG2;
|
|
char *fmsg = NULL;
|
|
|
|
if (ct->ct_syshandle) {
|
|
xs = isp_find_xs(isp, ct->ct_syshandle);
|
|
if (xs == NULL)
|
|
pl = ISP_LOGALL;
|
|
} else {
|
|
xs = NULL;
|
|
}
|
|
|
|
switch(ct->ct_status & ~QLTM_SVALID) {
|
|
case CT_OK:
|
|
/*
|
|
* There are generally 3 possibilities as to why we'd get
|
|
* this condition:
|
|
* We disconnected after receiving a CDB.
|
|
* We sent or received data.
|
|
* We sent status & command complete.
|
|
*/
|
|
|
|
if (ct->ct_flags & CT_SENDSTATUS) {
|
|
break;
|
|
} else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) {
|
|
/*
|
|
* Nothing to do in this case.
|
|
*/
|
|
isp_prt(isp, pl, "CTIO- iid %d disconnected OK",
|
|
ct->ct_iid);
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case CT_BDR_MSG:
|
|
/*
|
|
* Bus Device Reset message received or the SCSI Bus has
|
|
* been Reset; the firmware has gone to Bus Free.
|
|
*
|
|
* The firmware generates an async mailbox interupt to
|
|
* notify us of this and returns outstanding CTIOs with this
|
|
* status. These CTIOs are handled in that same way as
|
|
* CT_ABORTED ones, so just fall through here.
|
|
*/
|
|
fmsg = "Bus Device Reset";
|
|
/*FALLTHROUGH*/
|
|
case CT_RESET:
|
|
if (fmsg == NULL)
|
|
fmsg = "Bus Reset";
|
|
/*FALLTHROUGH*/
|
|
case CT_ABORTED:
|
|
/*
|
|
* When an Abort message is received the firmware goes to
|
|
* Bus Free and returns all outstanding CTIOs with the status
|
|
* set, then sends us an Immediate Notify entry.
|
|
*/
|
|
if (fmsg == NULL)
|
|
fmsg = "ABORT TAG message sent by Initiator";
|
|
|
|
isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg);
|
|
break;
|
|
|
|
case CT_INVAL:
|
|
/*
|
|
* CTIO rejected by the firmware due to disabled lun.
|
|
* "Cannot Happen".
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"Firmware rejected CTIO for disabled lun %d",
|
|
ct->ct_lun);
|
|
break;
|
|
|
|
case CT_NOPATH:
|
|
/*
|
|
* CTIO rejected by the firmware due "no path for the
|
|
* nondisconnecting nexus specified". This means that
|
|
* we tried to access the bus while a non-disconnecting
|
|
* command is in process.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"Firmware rejected CTIO for bad nexus %d/%d/%d",
|
|
ct->ct_iid, ct->ct_tgt, ct->ct_lun);
|
|
break;
|
|
|
|
case CT_RSELTMO:
|
|
fmsg = "Reselection";
|
|
/*FALLTHROUGH*/
|
|
case CT_TIMEOUT:
|
|
if (fmsg == NULL)
|
|
fmsg = "Command";
|
|
isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg);
|
|
break;
|
|
|
|
case CT_PANIC:
|
|
if (fmsg == NULL)
|
|
fmsg = "Unrecoverable Error";
|
|
/*FALLTHROUGH*/
|
|
case CT_ERR:
|
|
if (fmsg == NULL)
|
|
fmsg = "Completed with Error";
|
|
/*FALLTHROUGH*/
|
|
case CT_PHASE_ERROR:
|
|
if (fmsg == NULL)
|
|
fmsg = "Phase Sequence Error";
|
|
/*FALLTHROUGH*/
|
|
case CT_TERMINATED:
|
|
if (fmsg == NULL)
|
|
fmsg = "terminated by TERMINATE TRANSFER";
|
|
/*FALLTHROUGH*/
|
|
case CT_NOACK:
|
|
if (fmsg == NULL)
|
|
fmsg = "unacknowledged Immediate Notify pending";
|
|
isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg);
|
|
break;
|
|
default:
|
|
isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x",
|
|
ct->ct_status & ~QLTM_SVALID);
|
|
break;
|
|
}
|
|
|
|
if (xs == NULL) {
|
|
/*
|
|
* There may be more than one CTIO for a data transfer,
|
|
* or this may be a status CTIO we're not monitoring.
|
|
*
|
|
* The assumption is that they'll all be returned in the
|
|
* order we got them.
|
|
*/
|
|
if (ct->ct_syshandle == 0) {
|
|
if ((ct->ct_flags & CT_SENDSTATUS) == 0) {
|
|
isp_prt(isp, pl,
|
|
"intermediate CTIO completed ok");
|
|
} else {
|
|
isp_prt(isp, pl,
|
|
"unmonitored CTIO completed ok");
|
|
}
|
|
} else {
|
|
isp_prt(isp, pl,
|
|
"NO xs for CTIO (handle 0x%x) status 0x%x",
|
|
ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID);
|
|
}
|
|
} else {
|
|
/*
|
|
* Final CTIO completed. Release DMA resources and
|
|
* notify platform dependent layers.
|
|
*/
|
|
if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) {
|
|
ISP_DMAFREE(isp, xs, ct->ct_syshandle);
|
|
}
|
|
isp_prt(isp, pl, "final CTIO complete");
|
|
/*
|
|
* The platform layer will destroy the handle if appropriate.
|
|
*/
|
|
(void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
|
|
}
|
|
}
|
|
|
|
static void
|
|
isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct)
|
|
{
|
|
XS_T *xs;
|
|
int pl = ISP_LOGTDEBUG2;
|
|
char *fmsg = NULL;
|
|
|
|
if (ct->ct_syshandle) {
|
|
xs = isp_find_xs(isp, ct->ct_syshandle);
|
|
if (xs == NULL)
|
|
pl = ISP_LOGALL;
|
|
} else {
|
|
xs = NULL;
|
|
}
|
|
|
|
switch(ct->ct_status & ~QLTM_SVALID) {
|
|
case CT_BUS_ERROR:
|
|
isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error");
|
|
/* FALL Through */
|
|
case CT_DATA_OVER:
|
|
case CT_DATA_UNDER:
|
|
case CT_OK:
|
|
/*
|
|
* There are generally 2 possibilities as to why we'd get
|
|
* this condition:
|
|
* We sent or received data.
|
|
* We sent status & command complete.
|
|
*/
|
|
|
|
break;
|
|
|
|
case CT_BDR_MSG:
|
|
/*
|
|
* Target Reset function received.
|
|
*
|
|
* The firmware generates an async mailbox interupt to
|
|
* notify us of this and returns outstanding CTIOs with this
|
|
* status. These CTIOs are handled in that same way as
|
|
* CT_ABORTED ones, so just fall through here.
|
|
*/
|
|
fmsg = "TARGET RESET Task Management Function Received";
|
|
/*FALLTHROUGH*/
|
|
case CT_RESET:
|
|
if (fmsg == NULL)
|
|
fmsg = "LIP Reset";
|
|
/*FALLTHROUGH*/
|
|
case CT_ABORTED:
|
|
/*
|
|
* When an Abort message is received the firmware goes to
|
|
* Bus Free and returns all outstanding CTIOs with the status
|
|
* set, then sends us an Immediate Notify entry.
|
|
*/
|
|
if (fmsg == NULL)
|
|
fmsg = "ABORT Task Management Function Received";
|
|
|
|
isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg);
|
|
break;
|
|
|
|
case CT_INVAL:
|
|
/*
|
|
* CTIO rejected by the firmware - invalid data direction.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond");
|
|
break;
|
|
|
|
case CT_RSELTMO:
|
|
fmsg = "failure to reconnect to initiator";
|
|
/*FALLTHROUGH*/
|
|
case CT_TIMEOUT:
|
|
if (fmsg == NULL)
|
|
fmsg = "command";
|
|
isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg);
|
|
break;
|
|
|
|
case CT_ERR:
|
|
fmsg = "Completed with Error";
|
|
/*FALLTHROUGH*/
|
|
case CT_LOGOUT:
|
|
if (fmsg == NULL)
|
|
fmsg = "Port Logout";
|
|
/*FALLTHROUGH*/
|
|
case CT_PORTNOTAVAIL:
|
|
if (fmsg == NULL)
|
|
fmsg = "Port not available";
|
|
case CT_PORTCHANGED:
|
|
if (fmsg == NULL)
|
|
fmsg = "Port Changed";
|
|
case CT_NOACK:
|
|
if (fmsg == NULL)
|
|
fmsg = "unacknowledged Immediate Notify pending";
|
|
isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg);
|
|
break;
|
|
|
|
case CT_INVRXID:
|
|
/*
|
|
* CTIO rejected by the firmware because an invalid RX_ID.
|
|
* Just print a message.
|
|
*/
|
|
isp_prt(isp, ISP_LOGERR,
|
|
"CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid);
|
|
break;
|
|
|
|
default:
|
|
isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x",
|
|
ct->ct_status & ~QLTM_SVALID);
|
|
break;
|
|
}
|
|
|
|
if (xs == NULL) {
|
|
/*
|
|
* There may be more than one CTIO for a data transfer,
|
|
* or this may be a status CTIO we're not monitoring.
|
|
*
|
|
* The assumption is that they'll all be returned in the
|
|
* order we got them.
|
|
*/
|
|
if (ct->ct_syshandle == 0) {
|
|
if ((ct->ct_flags & CT_SENDSTATUS) == 0) {
|
|
isp_prt(isp, pl,
|
|
"intermediate CTIO completed ok");
|
|
} else {
|
|
isp_prt(isp, pl,
|
|
"unmonitored CTIO completed ok");
|
|
}
|
|
} else {
|
|
isp_prt(isp, pl,
|
|
"NO xs for CTIO (handle 0x%x) status 0x%x",
|
|
ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID);
|
|
}
|
|
} else {
|
|
if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) {
|
|
ISP_DMAFREE(isp, xs, ct->ct_syshandle);
|
|
}
|
|
if (ct->ct_flags & CT_SENDSTATUS) {
|
|
/*
|
|
* Sent status and command complete.
|
|
*
|
|
* We're now really done with this command, so we
|
|
* punt to the platform dependent layers because
|
|
* only there can we do the appropriate command
|
|
* complete thread synchronization.
|
|
*/
|
|
isp_prt(isp, pl, "status CTIO complete");
|
|
} else {
|
|
/*
|
|
* Final CTIO completed. Release DMA resources and
|
|
* notify platform dependent layers.
|
|
*/
|
|
isp_prt(isp, pl, "data CTIO complete");
|
|
}
|
|
(void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
|
|
/*
|
|
* The platform layer will destroy the handle if appropriate.
|
|
*/
|
|
}
|
|
}
|
|
#endif
|