1fcf3ce44SJohn Forte /*
2fcf3ce44SJohn Forte * CDDL HEADER START
3fcf3ce44SJohn Forte *
4fcf3ce44SJohn Forte * The contents of this file are subject to the terms of the
5fcf3ce44SJohn Forte * Common Development and Distribution License (the "License").
6fcf3ce44SJohn Forte * You may not use this file except in compliance with the License.
7fcf3ce44SJohn Forte *
8fcf3ce44SJohn Forte * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9fcf3ce44SJohn Forte * or http://www.opensolaris.org/os/licensing.
10fcf3ce44SJohn Forte * See the License for the specific language governing permissions
11fcf3ce44SJohn Forte * and limitations under the License.
12fcf3ce44SJohn Forte *
13fcf3ce44SJohn Forte * When distributing Covered Code, include this CDDL HEADER in each
14fcf3ce44SJohn Forte * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15fcf3ce44SJohn Forte * If applicable, add the following below this CDDL HEADER, with the
16fcf3ce44SJohn Forte * fields enclosed by brackets "[]" replaced with your own identifying
17fcf3ce44SJohn Forte * information: Portions Copyright [yyyy] [name of copyright owner]
18fcf3ce44SJohn Forte *
19fcf3ce44SJohn Forte * CDDL HEADER END
20fcf3ce44SJohn Forte */
21fcf3ce44SJohn Forte /*
22fcf3ce44SJohn Forte * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23fcf3ce44SJohn Forte * Use is subject to license terms.
24fcf3ce44SJohn Forte */
25fcf3ce44SJohn Forte
26fcf3ce44SJohn Forte
27fcf3ce44SJohn Forte
28fcf3ce44SJohn Forte #include "Trace.h"
29fcf3ce44SJohn Forte #include "Handle.h"
30fcf3ce44SJohn Forte #include "HBA.h"
31fcf3ce44SJohn Forte #include "HBAPort.h"
32fcf3ce44SJohn Forte #include "Exceptions.h"
33fcf3ce44SJohn Forte #include "sun_fc.h"
34fcf3ce44SJohn Forte #include <unistd.h>
35fcf3ce44SJohn Forte
36fcf3ce44SJohn Forte #define BUSY_SLEEP 1000000 /* 1/100 second */
37fcf3ce44SJohn Forte #define BUSY_RETRY_TIMER 5000000000ULL /* Retry for 5 seconds */
38fcf3ce44SJohn Forte #ifdef __cplusplus
39fcf3ce44SJohn Forte extern "C" {
40fcf3ce44SJohn Forte #endif
41fcf3ce44SJohn Forte
42fcf3ce44SJohn Forte /**
43fcf3ce44SJohn Forte * @memo Send a SCSI inquiry to a remote WWN
44fcf3ce44SJohn Forte * @return HBA_STATUS_OK or other error code
45fcf3ce44SJohn Forte * scsiStatus should be checked to ensure SCSI command
46fcf3ce44SJohn Forte * was a success.
47fcf3ce44SJohn Forte * @param handle The HBA to operate on
48fcf3ce44SJohn Forte * @param portWWN Indicates the HBA port to send command through
49fcf3ce44SJohn Forte * @param targetPortWWN Indicates the target to send command to
50fcf3ce44SJohn Forte * @param fcLun Indicates the target unit to send command to
51fcf3ce44SJohn Forte * @param cdb1 The first CDB byte
52fcf3ce44SJohn Forte * @param cdb2 The second CDB byte
53fcf3ce44SJohn Forte * @param responseBuffer User-allocated response buffer
54fcf3ce44SJohn Forte * @param responseSize Size of User-allocated response buffer
55fcf3ce44SJohn Forte * @param scsiStatus User-allocated scsi status byte
56*88f236beSToomas Soome *
57fcf3ce44SJohn Forte * @doc This routine will attempt a limited number of retries
58fcf3ce44SJohn Forte * When busy or again errors are encountered.
59fcf3ce44SJohn Forte */
60fcf3ce44SJohn Forte HBA_STATUS
Sun_fcScsiInquiryV2(HBA_HANDLE handle,HBA_WWN portWWN,HBA_WWN targetPortWWN,HBA_UINT64 fcLun,HBA_UINT8 cdb1,HBA_UINT8 cdb2,void * responseBuffer,HBA_UINT32 * responseSize,HBA_UINT8 * scsiStatus,void * senseBuffer,HBA_UINT32 * senseSize)61fcf3ce44SJohn Forte Sun_fcScsiInquiryV2(HBA_HANDLE handle, HBA_WWN portWWN, HBA_WWN targetPortWWN,
62fcf3ce44SJohn Forte HBA_UINT64 fcLun, HBA_UINT8 cdb1, HBA_UINT8 cdb2,
63fcf3ce44SJohn Forte void *responseBuffer, HBA_UINT32 *responseSize,
64fcf3ce44SJohn Forte HBA_UINT8 *scsiStatus,
65fcf3ce44SJohn Forte void *senseBuffer, HBA_UINT32 *senseSize) {
66fcf3ce44SJohn Forte Trace log("Sun_fcScsiInquiryV2");
67fcf3ce44SJohn Forte
68fcf3ce44SJohn Forte hrtime_t start = gethrtime();
69fcf3ce44SJohn Forte hrtime_t end = start + BUSY_RETRY_TIMER;
70fcf3ce44SJohn Forte for (hrtime_t cur = start; cur < end; cur = gethrtime()) {
71fcf3ce44SJohn Forte try {
72fcf3ce44SJohn Forte Handle *myHandle = Handle::findHandle(handle);
73fcf3ce44SJohn Forte HBA *hba = myHandle->getHBA();
74fcf3ce44SJohn Forte HBAPort *port = hba->getPort(wwnConversion(portWWN.wwn));
75fcf3ce44SJohn Forte
76fcf3ce44SJohn Forte port->sendScsiInquiry(wwnConversion(targetPortWWN.wwn), fcLun,
77fcf3ce44SJohn Forte cdb1, cdb2, responseBuffer, responseSize,
78fcf3ce44SJohn Forte scsiStatus, senseBuffer, senseSize);
79fcf3ce44SJohn Forte return (HBA_STATUS_OK);
80fcf3ce44SJohn Forte } catch (BusyException &e) {
81fcf3ce44SJohn Forte usleep(BUSY_SLEEP);
82fcf3ce44SJohn Forte continue;
83fcf3ce44SJohn Forte } catch (TryAgainException &e) {
84fcf3ce44SJohn Forte usleep(BUSY_SLEEP);
85fcf3ce44SJohn Forte continue;
86fcf3ce44SJohn Forte } catch (HBAException &e) {
87fcf3ce44SJohn Forte return (e.getErrorCode());
88fcf3ce44SJohn Forte } catch (...) {
89fcf3ce44SJohn Forte log.internalError(
90fcf3ce44SJohn Forte "Uncaught exception");
91fcf3ce44SJohn Forte return (HBA_STATUS_ERROR);
92fcf3ce44SJohn Forte }
93fcf3ce44SJohn Forte }
94*88f236beSToomas Soome return (HBA_STATUS_ERROR_TRY_AGAIN);
95fcf3ce44SJohn Forte }
96fcf3ce44SJohn Forte #ifdef __cplusplus
97fcf3ce44SJohn Forte }
98fcf3ce44SJohn Forte #endif
99