/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <unistd.h>
#include <TgtFCHBA.h>
#include <Exceptions.h>
#include <Trace.h>
#include <iostream>
#include <iomanip>
#include <cerrno>
#include <cstring>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stropts.h>
#include <sys/fctio.h>
#include <sys/fibre-channel/impl/fc_error.h>
#include <TgtFCHBAPort.h>
#include <HBAList.h>
#include <sun_fc.h>
#include <cstdlib>
using namespace std;
const string TgtFCHBA::FCT_DRIVER_PATH = "/devices/pseudo/fct@0:admin";
const string TgtFCHBA::FCT_ADAPTER_NAME_PREFIX = "/devices/pseudo/fct@0";
const string TgtFCHBA::FCT_DRIVER_PKG = "SUNWfct";
const int TgtFCHBA::MAX_FCTIO_MSG_LEN = 256;
TgtFCHBA::TgtFCHBA(string path) : HBA()
{
Trace log("TgtFCHBA::TgtFCHBA");
log.debug("Constructing new Target mode HBA (%s)", path.c_str());
// Add a target FCHBA port. With fct driver architecuture, all target mode
// FCHBA will have a single port regardless of the multiport support on
// FCA layer.
addPort(new TgtFCHBAPort(path));
name = "INTERNAL-FAILURE"; // Just in case things go wrong
try {
HBA_ADAPTERATTRIBUTES attrs = getHBAAttributes();
name = attrs.Manufacturer;
name += "-";
name += attrs.Model;
name += "-Tgt";
} catch (HBAException &e) {
log.debug(
"Failed to get HBA attribute for %s", path.c_str());
throw e;
}
}
std::string TgtFCHBA::getName()
{
Trace log("TgtFCHBA::getName");
return (name);
}
HBA_ADAPTERATTRIBUTES TgtFCHBA::getHBAAttributes()
{
Trace log("TgtFCHBA::getHBAAttributes");
int fd;
errno = 0;
HBAPort *port = getPortByIndex(0);
HBA_ADAPTERATTRIBUTES attributes;
fctio_t fctio;
fc_tgt_hba_adapter_attributes_t attrs;
uint64_t portwwn;
if ((fd = open(FCT_DRIVER_PATH.c_str(), O_NDELAY | O_RDONLY)) == -1) {
// Why did we fail?
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else {
throw IOError(port);
}
}
try {
std::string path = port->getPath();
string::size_type offset = path.find_last_of(".");
if (offset >= 0) {
string portwwnString = path.substr(offset+1);
portwwn = strtoull(portwwnString.c_str(), NULL, 16);
}
} catch (...) {
throw BadArgumentException();
}
uint64_t en_wwn = htonll(portwwn);
memset(&fctio, 0, sizeof (fctio));
fctio.fctio_cmd = FCTIO_GET_ADAPTER_ATTRIBUTES;
fctio.fctio_olen = (uint32_t)(sizeof (attrs));
fctio.fctio_xfer = FCTIO_XFER_READ;
fctio.fctio_obuf = (uint64_t)(uintptr_t)&attrs;
fctio.fctio_ilen = 8;
fctio.fctio_ibuf = (uint64_t)(uintptr_t)&en_wwn;
errno = 0;
if (ioctl(fd, FCTIO_CMD, &fctio) != 0) {
close(fd);
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else {
throw IOError("Unable to fetch adapter attributes");
}
}
close(fd);
/* Now copy over the payload */
attributes.NumberOfPorts = attrs.NumberOfPorts;
attributes.VendorSpecificID = attrs.VendorSpecificID;
memcpy(attributes.Manufacturer, attrs.Manufacturer, 64);
memcpy(attributes.SerialNumber, attrs.SerialNumber, 64);
memcpy(attributes.Model, attrs.Model, 256);
memcpy(attributes.ModelDescription, attrs.ModelDescription, 256);
memcpy(attributes.NodeSymbolicName, attrs.NodeSymbolicName, 256);
memcpy(attributes.HardwareVersion, attrs.HardwareVersion, 256);
memcpy(attributes.DriverVersion, attrs.DriverVersion, 256);
memcpy(attributes.OptionROMVersion, attrs.OptionROMVersion, 256);
memcpy(attributes.FirmwareVersion, attrs.FirmwareVersion, 256);
memcpy(attributes.DriverName, attrs.DriverName, 256);
memcpy(&attributes.NodeWWN, &attrs.NodeWWN, 8);
return (attributes);
}
int TgtFCHBA::doForceLip()
{
Trace log("TgtFCHBA::doForceLip");
int fd;
HBAPort *port = getPortByIndex(0);
fctio_t fctio;
uint64_t portwwn;
errno = 0;
if ((fd = open(FCT_DRIVER_PATH.c_str(), O_NDELAY | O_RDONLY)) == -1) {
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else {
throw IOError(port);
}
}
try {
std::string path = port->getPath();
string::size_type offset = path.find_last_of(".");
if (offset >= 0) {
string portwwnString = path.substr(offset+1);
portwwn = strtoull(portwwnString.c_str(), NULL, 16);
}
} catch (...) {
throw BadArgumentException();
}
uint64_t en_wwn = htonll(portwwn);
memset(&fctio, 0, sizeof (fctio));
fctio.fctio_cmd = FCTIO_FORCE_LIP;
fctio.fctio_xfer = FCTIO_XFER_READ;
fctio.fctio_ilen = 8;
fctio.fctio_ibuf = (uint64_t)(uintptr_t)&en_wwn;
errno = 0;
if (ioctl(fd, FCTIO_CMD, &fctio) != 0) {
close(fd);
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else {
throw IOError("Unable to reinitialize the link");
}
} else {
close(fd);
return ((int)fctio.fctio_errno);
}
}
void TgtFCHBA::loadAdapters(vector<HBA*> &list)
{
Trace log("TgtFCHBA::loadAdapters");
fctio_t fctio;
fc_tgt_hba_list_t *tgthbaList;
int fd;
int size = 64; // default first attempt
bool retry = false;
struct stat sb;
int bufSize;
char wwnStr[17];
/* Before we do anything, let's see if FCT is on the system */
errno = 0;
if (stat(FCT_DRIVER_PATH.c_str(), &sb) != 0) {
if (errno == ENOENT) {
log.genericIOError(
"The %s driver is not present."
" Please install the %s package.",
FCT_DRIVER_PATH.c_str(), FCT_DRIVER_PKG.c_str());
throw NotSupportedException();
} else {
log.genericIOError(
"Can not stat the %s driver for reason \"%s\" "
"Unable to get target mode FC adapters.",
FCT_DRIVER_PATH.c_str(), strerror(errno));
throw IOError("Unable to stat FCSM driver");
}
}
/* construct fcio struct */
memset(&fctio, 0, sizeof (fctio_t));
fctio.fctio_cmd = FCTIO_ADAPTER_LIST;
fctio.fctio_xfer = FCTIO_XFER_RW;
/* open the fcsm node so we can send the ioctl to */
errno = 0;
if ((fd = open(FCT_DRIVER_PATH.c_str(), O_RDONLY)) < 0) {
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else if (errno == ENOENT) {
throw UnavailableException();
} else {
throw IOError("Unable to open FCT driver");
}
}
do {
retry = false;
errno = 0;
bufSize = 8 * (size - 1) + (int) sizeof (fc_tgt_hba_list_t);
tgthbaList = (fc_tgt_hba_list_t *)new uchar_t[bufSize];
tgthbaList->numPorts = size;
fctio.fctio_olen = bufSize;
fctio.fctio_obuf = (uint64_t)(uintptr_t)tgthbaList;
if (ioctl(fd, FCTIO_CMD, &fctio) != 0) {
/* Interpret the fcio error code */
char fcioErrorString[MAX_FCTIO_MSG_LEN] = "";
log.genericIOError(
"TGT_ADAPTER_LIST failed: "
"Errno: \"%s\"",
strerror(errno));
delete (tgthbaList);
close(fd);
if (errno == EBUSY) {
throw BusyException();
} else if (errno == EAGAIN) {
throw TryAgainException();
} else if (errno == ENOTSUP) {
throw NotSupportedException();
} else if (errno == ENOENT) {
throw UnavailableException();
} else {
throw IOError("Unable to build HBA list");
}
}
if (tgthbaList->numPorts > size) {
log.debug(
"Buffer too small for number of target mode HBAs. Retrying.");
size = tgthbaList->numPorts;
retry = true;
delete (tgthbaList);
}
} while (retry);
close(fd);
log.debug("Detected %d target mode adapters", tgthbaList->numPorts);
for (int i = 0; i < tgthbaList->numPorts; i++) {
try {
std::string hbapath = FCT_ADAPTER_NAME_PREFIX.c_str();
hbapath += ".";
// move the row with two dimentional uint8 array for WWN
uint64_t tmp = ntohll(*((uint64_t *)&tgthbaList->port_wwn[i][0]));
sprintf(wwnStr, "%llx", tmp);
hbapath += wwnStr;
HBA *hba = new TgtFCHBA(hbapath);
list.insert(list.begin(), hba);
} catch (...) {
log.debug(
"Ignoring partial failure while loading an HBA");
}
}
if (tgthbaList->numPorts > HBAList::HBA_MAX_PER_LIST) {
delete(tgthbaList);
throw InternalError(
"Exceeds max number of adapters that VSL supports.");
}
delete (tgthbaList);
}