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Diffstat (limited to 'sys/dev/isp/isp_target.c')
| -rw-r--r-- | sys/dev/isp/isp_target.c | 1186 |
1 files changed, 1186 insertions, 0 deletions
diff --git a/sys/dev/isp/isp_target.c b/sys/dev/isp/isp_target.c new file mode 100644 index 0000000..bb5b23b --- /dev/null +++ b/sys/dev/isp/isp_target.c @@ -0,0 +1,1186 @@ +/* $FreeBSD$ */ +/* + * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters. + * + * Copyright (c) 1999, 2000, 2001 by Matthew Jacob + * All rights reserved. + * mjacob@feral.com + * + * 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. 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. + */ + +/* + * Bug fixes gratefully acknowledged from: + * Oded Kedem <oded@kashya.com> + */ +/* + * Include header file appropriate for platform we're building on. + */ + +#ifdef __NetBSD__ +#include <dev/ic/isp_netbsd.h> +#endif +#ifdef __FreeBSD__ +#include <dev/isp/isp_freebsd.h> +#endif +#ifdef __OpenBSD__ +#include <dev/ic/isp_openbsd.h> +#endif +#ifdef __linux__ +#include "isp_linux.h" +#endif + +#ifdef ISP_TARGET_MODE +static const char atiocope[] = + "ATIO returned for lun %d because it was in the middle of Bus Device Reset " + "on bus %d"; +static const char atior[] = + "ATIO returned on for lun %d on from IID %d because a Bus Reset occurred " + "on bus %d"; + +static void isp_got_msg(struct ispsoftc *, int, in_entry_t *); +static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *); +static void isp_notify_ack(struct ispsoftc *, void *); +static void isp_handle_atio(struct ispsoftc *, at_entry_t *); +static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *); +static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *); +static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *); + +/* + * The Qlogic driver gets an interrupt to look at response queue entries. + * Some of these are status completions for initiatior mode commands, but + * if target mode is enabled, we get a whole wad of response queue entries + * to be handled here. + * + * Basically the split into 3 main groups: Lun Enable/Modification responses, + * SCSI Command processing, and Immediate Notification events. + * + * You start by writing a request queue entry to enable target mode (and + * establish some resource limitations which you can modify later). + * The f/w responds with a LUN ENABLE or LUN MODIFY response with + * the status of this action. If the enable was successful, you can expect... + * + * Response queue entries with SCSI commands encapsulate show up in an ATIO + * (Accept Target IO) type- sometimes with enough info to stop the command at + * this level. Ultimately the driver has to feed back to the f/w's request + * queue a sequence of CTIOs (continue target I/O) that describe data to + * be moved and/or status to be sent) and finally finishing with sending + * to the f/w's response queue an ATIO which then completes the handshake + * with the f/w for that command. There's a lot of variations on this theme, + * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel + * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic + * gist of it. + * + * The third group that can show up in the response queue are Immediate + * Notification events. These include things like notifications of SCSI bus + * resets, or Bus Device Reset messages or other messages received. This + * a classic oddbins area. It can get a little weird because you then turn + * around and acknowledge the Immediate Notify by writing an entry onto the + * request queue and then the f/w turns around and gives you an acknowledgement + * to *your* acknowledgement on the response queue (the idea being to let + * the f/w tell you when the event is *really* over I guess). + * + */ + + +/* + * A new response queue entry has arrived. The interrupt service code + * has already swizzled it into the platform dependent from canonical form. + * + * Because of the way this driver is designed, unfortunately most of the + * actual synchronization work has to be done in the platform specific + * code- we have no synchroniation primitives in the common code. + */ + +int +isp_target_notify(struct ispsoftc *isp, void *vptr, u_int16_t *optrp) +{ + u_int16_t status, seqid; + union { + at_entry_t *atiop; + at2_entry_t *at2iop; + ct_entry_t *ctiop; + ct2_entry_t *ct2iop; + lun_entry_t *lunenp; + in_entry_t *inotp; + in_fcentry_t *inot_fcp; + na_entry_t *nackp; + na_fcentry_t *nack_fcp; + isphdr_t *hp; + void * *vp; +#define atiop unp.atiop +#define at2iop unp.at2iop +#define ctiop unp.ctiop +#define ct2iop unp.ct2iop +#define lunenp unp.lunenp +#define inotp unp.inotp +#define inot_fcp unp.inot_fcp +#define nackp unp.nackp +#define nack_fcp unp.nack_fcp +#define hdrp unp.hp + } unp; + u_int8_t local[QENTRY_LEN]; + int bus, type, rval = 1; + + type = isp_get_response_type(isp, (isphdr_t *)vptr); + unp.vp = vptr; + + ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr); + + switch(type) { + case RQSTYPE_ATIO: + isp_get_atio(isp, atiop, (at_entry_t *) local); + isp_handle_atio(isp, (at_entry_t *) local); + break; + case RQSTYPE_CTIO: + isp_get_ctio(isp, ctiop, (ct_entry_t *) local); + isp_handle_ctio(isp, (ct_entry_t *) local); + break; + case RQSTYPE_ATIO2: + isp_get_atio2(isp, at2iop, (at2_entry_t *) local); + isp_handle_atio2(isp, (at2_entry_t *) local); + break; + case RQSTYPE_CTIO2: + isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local); + isp_handle_ctio2(isp, (ct2_entry_t *) local); + break; + case RQSTYPE_ENABLE_LUN: + case RQSTYPE_MODIFY_LUN: + isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local); + (void) isp_async(isp, ISPASYNC_TARGET_ACTION, local); + break; + + case RQSTYPE_NOTIFY: + /* + * Either the ISP received a SCSI message it can't + * handle, or it's returning an Immed. Notify entry + * we sent. We can send Immed. Notify entries to + * increment the firmware's resource count for them + * (we set this initially in the Enable Lun entry). + */ + bus = 0; + if (IS_FC(isp)) { + isp_get_notify_fc(isp, inot_fcp, (in_fcentry_t *)local); + inot_fcp = (in_fcentry_t *) local; + status = inot_fcp->in_status; + seqid = inot_fcp->in_seqid; + } else { + isp_get_notify(isp, inotp, (in_entry_t *)local); + inotp = (in_entry_t *) local; + status = inotp->in_status & 0xff; + seqid = inotp->in_seqid; + if (IS_DUALBUS(isp)) { + bus = GET_BUS_VAL(inotp->in_iid); + SET_BUS_VAL(inotp->in_iid, 0); + } + } + isp_prt(isp, ISP_LOGTDEBUG0, + "Immediate Notify On Bus %d, status=0x%x seqid=0x%x", + bus, status, seqid); + + /* + * ACK it right away. + */ + isp_notify_ack(isp, (status == IN_RESET)? NULL : local); + switch (status) { + case IN_RESET: + (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus); + break; + case IN_MSG_RECEIVED: + case IN_IDE_RECEIVED: + if (IS_FC(isp)) { + isp_got_msg_fc(isp, bus, (in_fcentry_t *)local); + } else { + isp_got_msg(isp, bus, (in_entry_t *)local); + } + break; + case IN_RSRC_UNAVAIL: + isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs"); + break; + case IN_PORT_LOGOUT: + case IN_ABORT_TASK: + case IN_PORT_CHANGED: + case IN_GLOBAL_LOGO: + (void) isp_async(isp, ISPASYNC_TARGET_ACTION, &local); + break; + default: + isp_prt(isp, ISP_LOGERR, + "bad status (0x%x) in isp_target_notify", status); + break; + } + break; + + case RQSTYPE_NOTIFY_ACK: + /* + * The ISP is acknowledging our acknowledgement of an + * Immediate Notify entry for some asynchronous event. + */ + if (IS_FC(isp)) { + isp_get_notify_ack_fc(isp, nack_fcp, + (na_fcentry_t *)local); + nack_fcp = (na_fcentry_t *)local; + isp_prt(isp, ISP_LOGTDEBUG1, + "Notify Ack status=0x%x seqid 0x%x", + nack_fcp->na_status, nack_fcp->na_seqid); + } else { + isp_get_notify_ack(isp, nackp, (na_entry_t *)local); + nackp = (na_entry_t *)local; + isp_prt(isp, ISP_LOGTDEBUG1, + "Notify Ack event 0x%x status=0x%x seqid 0x%x", + nackp->na_event, nackp->na_status, nackp->na_seqid); + } + break; + default: + isp_prt(isp, ISP_LOGERR, + "Unknown entry type 0x%x in isp_target_notify", type); + rval = 0; + break; + } +#undef atiop +#undef at2iop +#undef ctiop +#undef ct2iop +#undef lunenp +#undef inotp +#undef inot_fcp +#undef nackp +#undef nack_fcp +#undef hdrp + return (rval); +} + + +/* + * Toggle (on/off) target mode for bus/target/lun + * + * The caller has checked for overlap and legality. + * + * Note that not all of bus, target or lun can be paid attention to. + * Note also that this action will not be complete until the f/w writes + * response entry. The caller is responsible for synchronizing this. + */ +int +isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun, + int cmd_cnt, int inot_cnt, u_int32_t opaque) +{ + lun_entry_t el; + u_int16_t nxti, optr; + void *outp; + + + MEMZERO(&el, sizeof (el)); + if (IS_DUALBUS(isp)) { + el.le_rsvd = (bus & 0x1) << 7; + } + el.le_cmd_count = cmd_cnt; + el.le_in_count = inot_cnt; + if (cmd == RQSTYPE_ENABLE_LUN) { + if (IS_SCSI(isp)) { + el.le_flags = LUN_TQAE|LUN_DISAD; + el.le_cdb6len = 12; + el.le_cdb7len = 12; + } + } else if (cmd == -RQSTYPE_ENABLE_LUN) { + cmd = RQSTYPE_ENABLE_LUN; + el.le_cmd_count = 0; + el.le_in_count = 0; + } else if (cmd == -RQSTYPE_MODIFY_LUN) { + cmd = RQSTYPE_MODIFY_LUN; + el.le_ops = LUN_CCDECR | LUN_INDECR; + } else { + el.le_ops = LUN_CCINCR | LUN_ININCR; + } + el.le_header.rqs_entry_type = cmd; + el.le_header.rqs_entry_count = 1; + el.le_reserved = opaque; + if (IS_SCSI(isp)) { + el.le_tgt = tgt; + el.le_lun = lun; + } else if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { + el.le_lun = lun; + } + el.le_timeout = 2; + + if (isp_getrqentry(isp, &nxti, &optr, &outp)) { + isp_prt(isp, ISP_LOGERR, + "Request Queue Overflow in isp_lun_cmd"); + return (-1); + } + ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el); + isp_put_enable_lun(isp, &el, outp); + ISP_ADD_REQUEST(isp, nxti); + return (0); +} + + +int +isp_target_put_entry(struct ispsoftc *isp, void *ap) +{ + void *outp; + u_int16_t nxti, optr; + u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type; + + if (isp_getrqentry(isp, &nxti, &optr, &outp)) { + isp_prt(isp, ISP_LOGWARN, + "Request Queue Overflow in isp_target_put_entry"); + return (-1); + } + switch (etype) { + case RQSTYPE_ATIO: + isp_put_atio(isp, (at_entry_t *) ap, (at_entry_t *) outp); + break; + case RQSTYPE_ATIO2: + isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp); + break; + case RQSTYPE_CTIO: + isp_put_ctio(isp, (ct_entry_t *) ap, (ct_entry_t *) outp); + break; + case RQSTYPE_CTIO2: + isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp); + break; + default: + isp_prt(isp, ISP_LOGERR, + "Unknown type 0x%x in isp_put_entry", etype); + return (-1); + } + + ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);; + ISP_ADD_REQUEST(isp, nxti); + return (0); +} + +int +isp_target_put_atio(struct ispsoftc *isp, void *arg) +{ + union { + at_entry_t _atio; + at2_entry_t _atio2; + } atun; + + MEMZERO(&atun, sizeof atun); + if (IS_FC(isp)) { + at2_entry_t *aep = arg; + atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2; + atun._atio2.at_header.rqs_entry_count = 1; + if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) { + atun._atio2.at_scclun = (u_int16_t) aep->at_scclun; + } else { + atun._atio2.at_lun = (u_int8_t) aep->at_lun; + } + atun._atio2.at_status = CT_OK; + } else { + at_entry_t *aep = arg; + atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO; + atun._atio.at_header.rqs_entry_count = 1; + atun._atio.at_handle = aep->at_handle; + atun._atio.at_iid = aep->at_iid; + atun._atio.at_tgt = aep->at_tgt; + atun._atio.at_lun = aep->at_lun; + atun._atio.at_tag_type = aep->at_tag_type; + atun._atio.at_tag_val = aep->at_tag_val; + atun._atio.at_status = (aep->at_flags & AT_TQAE); + atun._atio.at_status |= CT_OK; + } + return (isp_target_put_entry(isp, &atun)); +} + +/* + * Command completion- both for handling cases of no resources or + * no blackhole driver, or other cases where we have to, inline, + * finish the command sanely, or for normal command completion. + * + * The 'completion' code value has the scsi status byte in the low 8 bits. + * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have + * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC + * values. + * + * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't + * NB: inline SCSI sense reporting. As such, we lose this information. XXX. + * + * For both parallel && fibre channel, we use the feature that does + * an automatic resource autoreplenish so we don't have then later do + * put of an atio to replenish the f/w's resource count. + */ + +int +isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl) +{ + int sts; + union { + ct_entry_t _ctio; + ct2_entry_t _ctio2; + } un; + + MEMZERO(&un, sizeof un); + sts = code & 0xff; + + if (IS_FC(isp)) { + at2_entry_t *aep = arg; + ct2_entry_t *cto = &un._ctio2; + + cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2; + cto->ct_header.rqs_entry_count = 1; + cto->ct_iid = aep->at_iid; + if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) { + cto->ct_lun = aep->at_lun; + } + 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, 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, 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, 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, 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, lun, inp->in_seqid); + msg.nt_msg[0] = MSG_TERM_IO_PROC; + } else { + isp_prt(isp, ISP_LOGWARN, f2, "task flag", + inp->in_status, 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 |
