libg_fc/common/cmd.c

fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * CDDL HEADER START
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The contents of this file are subject to the terms of the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Common Development and Distribution License (the "License").
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You may not use this file except in compliance with the License.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * or http://www.opensolaris.org/os/licensing.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * See the License for the specific language governing permissions
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * and limitations under the License.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * When distributing Covered Code, include this CDDL HEADER in each
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * If applicable, add the following below this CDDL HEADER, with the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * fields enclosed by brackets "[]" replaced with your own identifying
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * information: Portions Copyright [yyyy] [name of copyright owner]
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * CDDL HEADER END
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Use is subject to license terms.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*LINTLIBRARY*/
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  This module is part of the photon Command Line
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  Interface program.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * I18N message number ranges
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  This file: 9500 - 9999
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  Shared common messages: 1 - 1999
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*  Includes    */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <stdlib.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <stdio.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <sys/types.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <unistd.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <errno.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <string.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <sys/scsi/scsi.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <nl_types.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <sys/time.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <l_common.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <stgcom.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <l_error.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include    <g_state.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*  Defines     */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#define MAXLEN      1000
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*  Global variables    */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteextern  nl_catd l_catd;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*  External functions  */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteextern  int rand_r(unsigned int *);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortestatic int
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortewait_random_time(void)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte{
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortetime_t      timeval;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortestruct tm   *tmbuf = NULL;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortestruct timeval  tval;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteunsigned int    seed;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteint     random;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortepid_t       pid;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Get the system time and use "system seconds"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * as 'seed' to generate a random number. Then,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * wait between 1/10 - 1/2 seconds before retry.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Get the current process id and ex-or it with
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * the seed so that the random number is always
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * different even in case of multiple processes
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * generate a random number at the same time.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if ((timeval = time(NULL)) == -1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (errno);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if ((tmbuf = localtime(&timeval)) == NULL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (L_LOCALTIME_ERROR);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    pid = getpid();
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* get a random number. */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    seed = (unsigned int) tmbuf->tm_sec;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    seed ^= pid;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    random = rand_r(&seed);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    random = ((random % 500) + 100) * MILLISEC;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    tval.tv_sec = random / MICROSEC;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    tval.tv_usec = random % MICROSEC;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (select(0, NULL, NULL, NULL, &tval) == -1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (L_SELECT_ERROR);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    return (0);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte}
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Execute a command and determine the result.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteint
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortecmd(int file, struct uscsi_cmd *command, int flag)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte{
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortestruct scsi_extended_sense  *rqbuf;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteint             status, i, retry_cnt = 0, err;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortechar                errorMsg[MAXLEN];
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Set function flags for driver.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Set Automatic request sense enable
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    command->uscsi_flags = USCSI_RQENABLE;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    command->uscsi_flags |= flag;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* intialize error message array */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    errorMsg[0] = '\0';
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* print command for debug */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (getenv("_LUX_S_DEBUG") != NULL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if ((command->uscsi_cdb == NULL) ||
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (flag & USCSI_RESET) ||
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (flag & USCSI_RESET_ALL)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (flag & USCSI_RESET) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (void) printf("  Issuing a SCSI Reset.\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (flag & USCSI_RESET_ALL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (void) printf("  Issuing a SCSI Reset All.\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (void) printf("  Issuing the following "
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                "SCSI command: %s\n",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            g_scsi_find_command_name(command->uscsi_cdb[0]));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (void) printf(" fd=0x%x cdb=", file);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            for (i = 0; i < (int)command->uscsi_cdblen; i++) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (void) printf("%x ", *(command->uscsi_cdb + i));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (void) printf("\n\tlen=0x%x bufaddr=0x%x buflen=0x%x"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                " flags=0x%x\n",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            command->uscsi_cdblen,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            command->uscsi_bufaddr,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            command->uscsi_buflen, command->uscsi_flags);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if ((command->uscsi_buflen > 0) &&
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                ((flag & USCSI_READ) == 0)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (void) g_dump("  Buffer data: ",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (uchar_t *)command->uscsi_bufaddr,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                MIN(command->uscsi_buflen, 512), HEX_ASCII);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        fflush(stdout);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Default command timeout in case command left it 0
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (command->uscsi_timeout == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        command->uscsi_timeout = 60;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /*  Issue command - finally */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forteretry:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    status = ioctl(file, USCSICMD, command);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (status == 0 && command->uscsi_status == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if (getenv("_LUX_S_DEBUG") != NULL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if ((command->uscsi_buflen > 0) &&
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (flag & USCSI_READ)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (void) g_dump("\tData read:",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                (uchar_t *)command->uscsi_bufaddr,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                MIN(command->uscsi_buflen, 512), HEX_ASCII);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (status);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if ((status != 0) && (command->uscsi_status == 0)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if ((getenv("_LUX_S_DEBUG") != NULL) ||
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (getenv("_LUX_ER_DEBUG") != NULL)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (void) printf("Unexpected USCSICMD ioctl error: %s\n",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                strerror(errno));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (status);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Just a SCSI error, create error message
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Retry once for Unit Attention,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     * Not Ready, and Aborted Command
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte     */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if ((command->uscsi_rqbuf != NULL) &&
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        (((char)command->uscsi_rqlen - (char)command->uscsi_rqresid) > 0)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        rqbuf = (struct scsi_extended_sense *)command->uscsi_rqbuf;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        switch (rqbuf->es_key) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case KEY_NOT_READY:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                ER_DPRINTF("Note: Device Not Ready."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                        " Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                if ((err = wait_random_time()) == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    return (err);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case KEY_UNIT_ATTENTION:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                ER_DPRINTF("  cmd():"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                " UNIT_ATTENTION: Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case KEY_ABORTED_COMMAND:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                ER_DPRINTF("Note: Command is aborted."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                " Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if ((getenv("_LUX_S_DEBUG") != NULL) ||
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (getenv("_LUX_ER_DEBUG") != NULL)) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            g_scsi_printerr(command,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (struct scsi_extended_sense *)command->uscsi_rqbuf,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            (command->uscsi_rqlen - command->uscsi_rqresid),
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                errorMsg, strerror(errno));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        /*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * Retry 5 times in case of BUSY, and only
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * once for Reservation-conflict, Command
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * Termination and Queue Full. Wait for
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * random amount of time (between 1/10 - 1/2 secs.)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * between each retry. This random wait is to avoid
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * the multiple threads being executed at the same time
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * and also the constraint in Photon IB, where the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         * command queue has a depth of one command.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte         */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        switch ((uchar_t)command->uscsi_status & STATUS_MASK) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case STATUS_BUSY:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 5) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                if ((err = wait_random_time()) == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    R_DPRINTF("  cmd(): No. of retries %d."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    " STATUS_BUSY: Retrying...\n",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    retry_cnt);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    return (err);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case STATUS_RESERVATION_CONFLICT:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                if ((err = wait_random_time()) == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    R_DPRINTF("  cmd():"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    " RESERVATION_CONFLICT:"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    " Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    return (err);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case STATUS_TERMINATED:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                R_DPRINTF("Note: Command Terminated."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    " Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                if ((err = wait_random_time()) == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    return (err);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        case STATUS_QFULL:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            if (retry_cnt++ < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                R_DPRINTF("Note: Command Queue is full."
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                " Retrying...\n");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                if ((err = wait_random_time()) == 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    goto retry;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                    return (err);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte                }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            break;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (((getenv("_LUX_S_DEBUG") != NULL) ||
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        (getenv("_LUX_ER_DEBUG") != NULL)) &&
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        (errorMsg[0] != '\0')) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        (void) fprintf(stdout, "  %s\n", errorMsg);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    return (L_SCSI_ERROR | command->uscsi_status);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte}