1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <syslog.h> 27 #include <errno.h> 28 #include <unistd.h> 29 #include <stropts.h> 30 #include <sys/scsi/impl/uscsi.h> 31 32 #include "mp_utils.h" 33 34 35 /* 36 * Called by the common layer to request to steer a path 37 */ 38 39 MP_STATUS 40 Sun_MP_SendScsiCmd(MP_OID pathOid, struct uscsi_cmd *cmd) 41 { 42 mp_iocdata_t mp_ioctl; 43 44 int ioctlStatus = 0; 45 46 MP_STATUS mpStatus = MP_STATUS_SUCCESS; 47 48 log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - enter"); 49 50 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 51 "pathOid.objectSequenceNumber = %llx", 52 pathOid.objectSequenceNumber); 53 54 if (g_scsi_vhci_fd < 0) { 55 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 56 "invalid driver file handle"); 57 log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - error exit"); 58 return (MP_STATUS_FAILED); 59 } 60 61 (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t)); 62 63 mp_ioctl.mp_cmd = MP_SEND_SCSI_CMD; 64 mp_ioctl.mp_ibuf = (caddr_t)&pathOid.objectSequenceNumber; 65 mp_ioctl.mp_ilen = sizeof (pathOid.objectSequenceNumber); 66 mp_ioctl.mp_xfer = 67 ((cmd->uscsi_flags & USCSI_READ) ? MP_XFER_READ : MP_XFER_WRITE); 68 mp_ioctl.mp_obuf = (char *)cmd; 69 mp_ioctl.mp_olen = sizeof (*cmd); 70 71 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 72 "mp_ioctl.mp_cmd (MP_SEND_SCSI_CMD) : %d", 73 mp_ioctl.mp_cmd); 74 75 ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl); 76 77 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 78 " IOCTL call returned: %d", ioctlStatus); 79 80 if (ioctlStatus < 0) { 81 ioctlStatus = errno; 82 } 83 84 if (ioctlStatus != 0) { 85 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 86 "IOCTL call failed. IOCTL error is: %d", 87 ioctlStatus); 88 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 89 "IOCTL call failed. IOCTL error is: %s", 90 strerror(ioctlStatus)); 91 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 92 "IOCTL call failed. mp_ioctl.mp_errno: %x", 93 mp_ioctl.mp_errno); 94 95 if (ENOTSUP == ioctlStatus) { 96 mpStatus = MP_STATUS_UNSUPPORTED; 97 } else if (EPERM == ioctlStatus) { 98 mpStatus = MP_STATUS_NOT_PERMITTED; 99 } else if (0 == mp_ioctl.mp_errno) { 100 mpStatus = MP_STATUS_FAILED; 101 } else { 102 mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno); 103 } 104 105 log(LOG_INFO, "Sun_MP_SendScsiCmd()", 106 " - error exit"); 107 108 return (mpStatus); 109 } 110 111 112 log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - exit"); 113 114 return (MP_STATUS_SUCCESS); 115 } 116