io/ipmi/ipmi.c

989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * All rights reserved.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek *
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Redistribution and use in source and binary forms, with or without
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * modification, are permitted provided that the following conditions
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * are met:
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * 1. Redistributions of source code must retain the above copyright
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek *    notice, this list of conditions and the following disclaimer.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * 2. Redistributions in binary form must reproduce the above copyright
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek *    notice, this list of conditions and the following disclaimer in the
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek *    documentation and/or other materials provided with the distribution.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek *
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * SUCH DAMAGE.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/* $FreeBSD: src/sys/dev/ipmi/ipmi.c,v 1.16 2011/11/07 15:43:11 ed Exp $ */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Copyright 2012, Joyent, Inc.  All rights reserved.
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/devops.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/conf.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/modctl.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/types.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/file.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/errno.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/open.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/cred.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/uio.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/stat.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/cmn_err.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/ddi.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/sunddi.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/smbios.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/smbios_impl.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include <sys/ipmi.h>
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek#include "ipmivars.h"
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Request management.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/* Allocate a new request with request and reply buffers. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekstruct ipmi_request *
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_alloc_request(struct ipmi_device *dev, long msgid, uint8_t addr,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    uint8_t command, size_t requestlen, size_t replylen)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    struct ipmi_request *req;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req = kmem_zalloc(sizeof (struct ipmi_request) + requestlen + replylen,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        KM_SLEEP);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req->ir_sz = sizeof (struct ipmi_request) + requestlen + replylen;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req->ir_owner = dev;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req->ir_msgid = msgid;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req->ir_addr = addr;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req->ir_command = command;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (requestlen) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_request = (uchar_t *)&req[1];
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_requestlen = requestlen;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (replylen) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_reply = (uchar_t *)&req[1] + requestlen;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_replybuflen = replylen;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    cv_init(&req->ir_cv, NULL, CV_DEFAULT, NULL);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    req->ir_status = IRS_ALLOCATED;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    return (req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/* Free a request no longer in use. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekvoid
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_free_request(struct ipmi_request *req)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    if (req == NULL)
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        return;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    cv_destroy(&req->ir_cv);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    kmem_free(req, req->ir_sz);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/* Store a processed request on the appropriate completion queue. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*ARGSUSED*/
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekvoid
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_complete_request(struct ipmi_softc *sc, struct ipmi_request *req)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    struct ipmi_device *dev;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    IPMI_LOCK_ASSERT(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    if (req->ir_status == IRS_CANCELED) {
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        ASSERT(req->ir_owner == NULL);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        ipmi_free_request(req);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        return;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    }
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    req->ir_status = IRS_COMPLETED;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka    /*
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka     * Anonymous requests (from inside the driver) always have a
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka     * waiter that we awaken.
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka     */
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka    if (req->ir_owner == NULL) {
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka        cv_signal(&req->ir_cv);
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka    } else {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        dev = req->ir_owner;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        TAILQ_INSERT_TAIL(&dev->ipmi_completed_requests, req, ir_link);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        pollwakeup(dev->ipmi_pollhead, POLLIN | POLLRDNORM);
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka        dev->ipmi_status &= ~IPMI_BUSY;
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka        if (dev->ipmi_status & IPMI_CLOSING)
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka            cv_signal(&dev->ipmi_cv);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Enqueue an internal driver request and wait until it is completed.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekstatic int
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telkaipmi_submit_driver_request(struct ipmi_softc *sc, struct ipmi_request **preq,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    int timo)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    int error;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    struct ipmi_request *req = *preq;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    ASSERT(req->ir_owner == NULL);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    IPMI_LOCK(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    error = sc->ipmi_enqueue_request(sc, req);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    if (error != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        IPMI_UNLOCK(sc);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        return (error);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    }
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    while (req->ir_status != IRS_COMPLETED && error >= 0)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        if (timo == 0)
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            cv_wait(&req->ir_cv, &sc->ipmi_lock);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        else
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            error = cv_timedwait(&req->ir_cv, &sc->ipmi_lock,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek                ddi_get_lbolt() + timo);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    switch (req->ir_status) {
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        case IRS_QUEUED:
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            TAILQ_REMOVE(&sc->ipmi_pending_requests, req, ir_link);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            req->ir_status = IRS_CANCELED;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            error = EWOULDBLOCK;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            break;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        case IRS_PROCESSED:
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            req->ir_status = IRS_CANCELED;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            error = EWOULDBLOCK;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            *preq = NULL;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            break;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        case IRS_COMPLETED:
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            error = req->ir_error;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            break;
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        default:
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            panic("IPMI: Invalid request status");
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka            break;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    IPMI_UNLOCK(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    return (error);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek/*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * Helper routine for polled system interfaces that use
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * ipmi_polled_enqueue_request() to queue requests.  This request
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * waits until there is a pending request and then returns the first
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek * request.  If the driver is shutting down, it returns NULL.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekstruct ipmi_request *
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_dequeue_request(struct ipmi_softc *sc)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    struct ipmi_request *req;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    IPMI_LOCK_ASSERT(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    while (!sc->ipmi_detaching && TAILQ_EMPTY(&sc->ipmi_pending_requests))
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cv_wait(&sc->ipmi_request_added, &sc->ipmi_lock);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (sc->ipmi_detaching)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        return (NULL);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req = TAILQ_FIRST(&sc->ipmi_pending_requests);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    TAILQ_REMOVE(&sc->ipmi_pending_requests, req, ir_link);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    req->ir_status = IRS_PROCESSED;
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka    if (req->ir_owner != NULL)
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka        req->ir_owner->ipmi_status |= IPMI_BUSY;
cc944374608a39fb5622959cc9a210fb116539cbMarcel Telka
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    return (req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekint
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_polled_enqueue_request(struct ipmi_softc *sc, struct ipmi_request *req)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    IPMI_LOCK_ASSERT(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    TAILQ_INSERT_TAIL(&sc->ipmi_pending_requests, req, ir_link);
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    req->ir_status = IRS_QUEUED;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    cv_signal(&sc->ipmi_request_added);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    return (0);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekvoid
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchukipmi_shutdown(struct ipmi_softc *sc)
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk{
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk    taskq_destroy(sc->ipmi_kthread);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk    cv_destroy(&sc->ipmi_request_added);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk    mutex_destroy(&sc->ipmi_lock);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk}
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchukboolean_t
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinekipmi_startup(struct ipmi_softc *sc)
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek{
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    struct ipmi_request *req;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    int error, i;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    /* Initialize interface-independent state. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    mutex_init(&sc->ipmi_lock, NULL, MUTEX_DEFAULT, NULL);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    cv_init(&sc->ipmi_request_added, NULL, CV_DEFAULT, NULL);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    TAILQ_INIT(&sc->ipmi_pending_requests);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    /* Initialize interface-dependent state. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    error = sc->ipmi_startup(sc);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (error) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Failed to initialize interface: %d", error);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    /* Send a GET_DEVICE_ID request. */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req = ipmi_alloc_driver_request(IPMI_ADDR(IPMI_APP_REQUEST, 0),
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        IPMI_GET_DEVICE_ID, 0, 15);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    error = ipmi_submit_driver_request(sc, &req, MAX_TIMEOUT);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (error == EWOULDBLOCK) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Timed out waiting for GET_DEVICE_ID");
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    } else if (error) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Failed GET_DEVICE_ID: %d", error);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    } else if (req->ir_compcode != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            "Bad completion code for GET_DEVICE_ID: %d",
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            req->ir_compcode);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    } else if (req->ir_replylen < 5) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Short reply for GET_DEVICE_ID: %d",
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            req->ir_replylen);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    cmn_err(CE_CONT, "!device rev. %d, firmware rev. %d.%d%d, "
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        "version %d.%d",
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_reply[1] & 0x0f, req->ir_reply[2] & 0x7f,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_reply[3] >> 4, req->ir_reply[3] & 0x0f,
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_reply[4] & 0x0f, req->ir_reply[4] >> 4);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    ipmi_free_request(req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req = ipmi_alloc_driver_request(IPMI_ADDR(IPMI_APP_REQUEST, 0),
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        IPMI_CLEAR_FLAGS, 1, 0);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    if ((error = ipmi_submit_driver_request(sc, &req, 0)) != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Failed to clear IPMI flags: %d\n", error);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    /* Magic numbers */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (req->ir_compcode == 0xc0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_NOTE, "!Clear flags is busy");
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (req->ir_compcode == 0xc1) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_NOTE, "!Clear flags illegal");
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    ipmi_free_request(req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    for (i = 0; i < 8; i++) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req = ipmi_alloc_driver_request(IPMI_ADDR(IPMI_APP_REQUEST, 0),
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            IPMI_GET_CHANNEL_INFO, 1, 0);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        req->ir_request[0] = (uchar_t)i;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka        if (ipmi_submit_driver_request(sc, &req, 0) != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            ipmi_free_request(req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            break;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        if (req->ir_compcode != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            ipmi_free_request(req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek            break;
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    cmn_err(CE_CONT, "!number of channels %d", i);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    /* probe for watchdog */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    req = ipmi_alloc_driver_request(IPMI_ADDR(IPMI_APP_REQUEST, 0),
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        IPMI_GET_WDOG, 0, 0);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
1e3934778d15dd08e911e1d050dd7a4949348d93Marcel Telka    if ((error = ipmi_submit_driver_request(sc, &req, 0)) != 0) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_WARN, "Failed to check IPMI watchdog: %d\n", error);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk        return (B_FALSE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    if (req->ir_compcode == 0x00) {
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        cmn_err(CE_CONT, "!watchdog supported");
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek        /*
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek         * Here is where we could register a watchdog event handler.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek         * See ipmi_wd_event() in the FreeBSD code.
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek         */
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    }
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek    ipmi_free_request(req);
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk
e1c99a74dc27ba07cba2cd8181f462ea9a5b0dbaAlek Pinchuk    return (B_TRUE);
989f28072d20c73ae0955d6a1e3e2fc74831cb39Jerry Jelinek}