1555 lines
42 KiB
C
Executable File
1555 lines
42 KiB
C
Executable File
/*
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* linux/drivers/message/fusion/mptfc.c
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* For use with LSI PCI chip/adapter(s)
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* running LSI Fusion MPT (Message Passing Technology) firmware.
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*
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* Copyright (c) 1999-2008 LSI Corporation
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* (mailto:DL-MPTFusionLinux@lsi.com)
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*
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*/
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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NO WARRANTY
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THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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solely responsible for determining the appropriateness of using and
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distributing the Program and assumes all risks associated with its
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exercise of rights under this Agreement, including but not limited to
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the risks and costs of program errors, damage to or loss of data,
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programs or equipment, and unavailability or interruption of operations.
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DISCLAIMER OF LIABILITY
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NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/kdev_t.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h> /* for mdelay */
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#include <linux/interrupt.h> /* needed for in_interrupt() proto */
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#include <linux/reboot.h> /* notifier code */
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#include <linux/workqueue.h>
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#include <linux/sort.h>
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#include <linux/slab.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/scsi_transport_fc.h>
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#include "mptbase.h"
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#include "mptscsih.h"
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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#define my_NAME "Fusion MPT FC Host driver"
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#define my_VERSION MPT_LINUX_VERSION_COMMON
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#define MYNAM "mptfc"
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MODULE_AUTHOR(MODULEAUTHOR);
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MODULE_DESCRIPTION(my_NAME);
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MODULE_LICENSE("GPL");
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MODULE_VERSION(my_VERSION);
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/* Command line args */
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#define MPTFC_DEV_LOSS_TMO (60)
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static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */
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module_param(mptfc_dev_loss_tmo, int, 0);
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MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the "
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" transport to wait for an rport to "
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" return following a device loss event."
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" Default=60.");
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/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
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#define MPTFC_MAX_LUN (16895)
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static int max_lun = MPTFC_MAX_LUN;
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module_param(max_lun, int, 0);
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MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
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static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
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static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
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static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS;
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static int mptfc_target_alloc(struct scsi_target *starget);
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static int mptfc_slave_alloc(struct scsi_device *sdev);
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static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt);
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static void mptfc_target_destroy(struct scsi_target *starget);
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static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
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static void mptfc_remove(struct pci_dev *pdev);
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static int mptfc_abort(struct scsi_cmnd *SCpnt);
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static int mptfc_dev_reset(struct scsi_cmnd *SCpnt);
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static int mptfc_bus_reset(struct scsi_cmnd *SCpnt);
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static struct scsi_host_template mptfc_driver_template = {
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.module = THIS_MODULE,
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.proc_name = "mptfc",
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.show_info = mptscsih_show_info,
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.name = "MPT FC Host",
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.info = mptscsih_info,
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.queuecommand = mptfc_qcmd,
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.target_alloc = mptfc_target_alloc,
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.slave_alloc = mptfc_slave_alloc,
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.slave_configure = mptscsih_slave_configure,
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.target_destroy = mptfc_target_destroy,
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.slave_destroy = mptscsih_slave_destroy,
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.change_queue_depth = mptscsih_change_queue_depth,
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.eh_timed_out = fc_eh_timed_out,
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.eh_abort_handler = mptfc_abort,
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.eh_device_reset_handler = mptfc_dev_reset,
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.eh_bus_reset_handler = mptfc_bus_reset,
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.eh_host_reset_handler = mptscsih_host_reset,
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.bios_param = mptscsih_bios_param,
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.can_queue = MPT_FC_CAN_QUEUE,
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.this_id = -1,
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.sg_tablesize = MPT_SCSI_SG_DEPTH,
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.max_sectors = 8192,
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.cmd_per_lun = 7,
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.use_clustering = ENABLE_CLUSTERING,
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.shost_attrs = mptscsih_host_attrs,
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};
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/****************************************************************************
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* Supported hardware
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*/
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static struct pci_device_id mptfc_pci_table[] = {
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E,
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PCI_ANY_ID, PCI_ANY_ID },
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{0} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
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static struct scsi_transport_template *mptfc_transport_template = NULL;
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static struct fc_function_template mptfc_transport_functions = {
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.dd_fcrport_size = 8,
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.show_host_node_name = 1,
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.show_host_port_name = 1,
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.show_host_supported_classes = 1,
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.show_host_port_id = 1,
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.show_rport_supported_classes = 1,
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.show_starget_node_name = 1,
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.show_starget_port_name = 1,
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.show_starget_port_id = 1,
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.set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
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.show_rport_dev_loss_tmo = 1,
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.show_host_supported_speeds = 1,
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.show_host_maxframe_size = 1,
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.show_host_speed = 1,
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.show_host_fabric_name = 1,
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.show_host_port_type = 1,
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.show_host_port_state = 1,
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.show_host_symbolic_name = 1,
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};
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static int
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mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
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int (*func)(struct scsi_cmnd *SCpnt),
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const char *caller)
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{
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MPT_SCSI_HOST *hd;
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struct scsi_device *sdev = SCpnt->device;
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struct Scsi_Host *shost = sdev->host;
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struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
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unsigned long flags;
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int ready;
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MPT_ADAPTER *ioc;
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int loops = 40; /* seconds */
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hd = shost_priv(SCpnt->device->host);
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ioc = hd->ioc;
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spin_lock_irqsave(shost->host_lock, flags);
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while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
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|| (loops > 0 && ioc->active == 0)) {
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spin_unlock_irqrestore(shost->host_lock, flags);
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dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
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"mptfc_block_error_handler.%d: %d:%llu, port status is "
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"%x, active flag %d, deferring %s recovery.\n",
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ioc->name, ioc->sh->host_no,
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SCpnt->device->id, SCpnt->device->lun,
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ready, ioc->active, caller));
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msleep(1000);
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spin_lock_irqsave(shost->host_lock, flags);
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loops --;
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}
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spin_unlock_irqrestore(shost->host_lock, flags);
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if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
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|| ioc->active == 0) {
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dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
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"%s.%d: %d:%llu, failing recovery, "
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"port state %x, active %d, vdevice %p.\n", caller,
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ioc->name, ioc->sh->host_no,
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SCpnt->device->id, SCpnt->device->lun, ready,
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ioc->active, SCpnt->device->hostdata));
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return FAILED;
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}
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dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
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"%s.%d: %d:%llu, executing recovery.\n", caller,
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ioc->name, ioc->sh->host_no,
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SCpnt->device->id, SCpnt->device->lun));
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return (*func)(SCpnt);
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}
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static int
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mptfc_abort(struct scsi_cmnd *SCpnt)
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{
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return
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mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
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}
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static int
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mptfc_dev_reset(struct scsi_cmnd *SCpnt)
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{
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return
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mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
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}
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static int
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mptfc_bus_reset(struct scsi_cmnd *SCpnt)
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{
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return
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mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
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}
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static void
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mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
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{
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if (timeout > 0)
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rport->dev_loss_tmo = timeout;
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else
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rport->dev_loss_tmo = mptfc_dev_loss_tmo;
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}
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static int
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mptfc_FcDevPage0_cmp_func(const void *a, const void *b)
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{
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FCDevicePage0_t **aa = (FCDevicePage0_t **)a;
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FCDevicePage0_t **bb = (FCDevicePage0_t **)b;
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if ((*aa)->CurrentBus == (*bb)->CurrentBus) {
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if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID)
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return 0;
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if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID)
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return -1;
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return 1;
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}
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if ((*aa)->CurrentBus < (*bb)->CurrentBus)
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return -1;
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return 1;
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}
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static int
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mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
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void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg))
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{
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ConfigPageHeader_t hdr;
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CONFIGPARMS cfg;
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FCDevicePage0_t *ppage0_alloc, *fc;
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dma_addr_t page0_dma;
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int data_sz;
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int ii;
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FCDevicePage0_t *p0_array=NULL, *p_p0;
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FCDevicePage0_t **pp0_array=NULL, **p_pp0;
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int rc = -ENOMEM;
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U32 port_id = 0xffffff;
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int num_targ = 0;
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int max_bus = ioc->facts.MaxBuses;
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int max_targ;
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max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices;
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data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ;
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p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL);
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if (!p0_array)
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goto out;
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data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ;
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p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL);
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if (!pp0_array)
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goto out;
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do {
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/* Get FC Device Page 0 header */
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hdr.PageVersion = 0;
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hdr.PageLength = 0;
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hdr.PageNumber = 0;
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hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE;
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cfg.cfghdr.hdr = &hdr;
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cfg.physAddr = -1;
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cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
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cfg.dir = 0;
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cfg.pageAddr = port_id;
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cfg.timeout = 0;
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if ((rc = mpt_config(ioc, &cfg)) != 0)
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break;
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if (hdr.PageLength <= 0)
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break;
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data_sz = hdr.PageLength * 4;
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ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
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&page0_dma);
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rc = -ENOMEM;
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if (!ppage0_alloc)
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break;
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cfg.physAddr = page0_dma;
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cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
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if ((rc = mpt_config(ioc, &cfg)) == 0) {
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ppage0_alloc->PortIdentifier =
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le32_to_cpu(ppage0_alloc->PortIdentifier);
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ppage0_alloc->WWNN.Low =
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le32_to_cpu(ppage0_alloc->WWNN.Low);
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ppage0_alloc->WWNN.High =
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le32_to_cpu(ppage0_alloc->WWNN.High);
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ppage0_alloc->WWPN.Low =
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le32_to_cpu(ppage0_alloc->WWPN.Low);
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ppage0_alloc->WWPN.High =
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le32_to_cpu(ppage0_alloc->WWPN.High);
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|
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ppage0_alloc->BBCredit =
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le16_to_cpu(ppage0_alloc->BBCredit);
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ppage0_alloc->MaxRxFrameSize =
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le16_to_cpu(ppage0_alloc->MaxRxFrameSize);
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port_id = ppage0_alloc->PortIdentifier;
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num_targ++;
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*p_p0 = *ppage0_alloc; /* save data */
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*p_pp0++ = p_p0++; /* save addr */
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}
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pci_free_consistent(ioc->pcidev, data_sz,
|
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(u8 *) ppage0_alloc, page0_dma);
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if (rc != 0)
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break;
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|
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} while (port_id <= 0xff0000);
|
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|
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if (num_targ) {
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/* sort array */
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if (num_targ > 1)
|
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sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *),
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mptfc_FcDevPage0_cmp_func, NULL);
|
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/* call caller's func for each targ */
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for (ii = 0; ii < num_targ; ii++) {
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fc = *(pp0_array+ii);
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func(ioc, ioc_port, fc);
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}
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}
|
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|
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out:
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kfree(pp0_array);
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kfree(p0_array);
|
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return rc;
|
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}
|
|
|
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static int
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mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
|
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{
|
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/* not currently usable */
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if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID |
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MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID))
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return -1;
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|
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if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
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return -1;
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|
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if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET))
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return -1;
|
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|
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/*
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* board data structure already normalized to platform endianness
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* shifted to avoid unaligned access on 64 bit architecture
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*/
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rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low;
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rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low;
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rid->port_id = pg0->PortIdentifier;
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rid->roles = FC_RPORT_ROLE_UNKNOWN;
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|
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return 0;
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}
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|
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static void
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mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
|
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{
|
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struct fc_rport_identifiers rport_ids;
|
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struct fc_rport *rport;
|
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struct mptfc_rport_info *ri;
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int new_ri = 1;
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u64 pn, nn;
|
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VirtTarget *vtarget;
|
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u32 roles = FC_RPORT_ROLE_UNKNOWN;
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|
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if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
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return;
|
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|
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roles |= FC_RPORT_ROLE_FCP_TARGET;
|
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if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
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roles |= FC_RPORT_ROLE_FCP_INITIATOR;
|
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|
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/* scan list looking for a match */
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
|
|
if (pn == rport_ids.port_name) { /* match */
|
|
list_move_tail(&ri->list, &ioc->fc_rports);
|
|
new_ri = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (new_ri) { /* allocate one */
|
|
ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
|
|
if (!ri)
|
|
return;
|
|
list_add_tail(&ri->list, &ioc->fc_rports);
|
|
}
|
|
|
|
ri->pg0 = *pg0; /* add/update pg0 data */
|
|
ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
|
|
|
|
/* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
|
|
if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
|
|
ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
|
|
rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
|
|
if (rport) {
|
|
ri->rport = rport;
|
|
if (new_ri) /* may have been reset by user */
|
|
rport->dev_loss_tmo = mptfc_dev_loss_tmo;
|
|
/*
|
|
* if already mapped, remap here. If not mapped,
|
|
* target_alloc will allocate vtarget and map,
|
|
* slave_alloc will fill in vdevice from vtarget.
|
|
*/
|
|
if (ri->starget) {
|
|
vtarget = ri->starget->hostdata;
|
|
if (vtarget) {
|
|
vtarget->id = pg0->CurrentTargetID;
|
|
vtarget->channel = pg0->CurrentBus;
|
|
vtarget->deleted = 0;
|
|
}
|
|
}
|
|
*((struct mptfc_rport_info **)rport->dd_data) = ri;
|
|
/* scan will be scheduled once rport becomes a target */
|
|
fc_remote_port_rolechg(rport,roles);
|
|
|
|
pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
|
|
nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
|
|
dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
|
|
"mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
|
|
"rport tid %d, tmo %d\n",
|
|
ioc->name,
|
|
ioc->sh->host_no,
|
|
pg0->PortIdentifier,
|
|
(unsigned long long)nn,
|
|
(unsigned long long)pn,
|
|
pg0->CurrentTargetID,
|
|
ri->rport->scsi_target_id,
|
|
ri->rport->dev_loss_tmo));
|
|
} else {
|
|
list_del(&ri->list);
|
|
kfree(ri);
|
|
ri = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* OS entry point to allow for host driver to free allocated memory
|
|
* Called if no device present or device being unloaded
|
|
*/
|
|
static void
|
|
mptfc_target_destroy(struct scsi_target *starget)
|
|
{
|
|
struct fc_rport *rport;
|
|
struct mptfc_rport_info *ri;
|
|
|
|
rport = starget_to_rport(starget);
|
|
if (rport) {
|
|
ri = *((struct mptfc_rport_info **)rport->dd_data);
|
|
if (ri) /* better be! */
|
|
ri->starget = NULL;
|
|
}
|
|
kfree(starget->hostdata);
|
|
starget->hostdata = NULL;
|
|
}
|
|
|
|
/*
|
|
* OS entry point to allow host driver to alloc memory
|
|
* for each scsi target. Called once per device the bus scan.
|
|
* Return non-zero if allocation fails.
|
|
*/
|
|
static int
|
|
mptfc_target_alloc(struct scsi_target *starget)
|
|
{
|
|
VirtTarget *vtarget;
|
|
struct fc_rport *rport;
|
|
struct mptfc_rport_info *ri;
|
|
int rc;
|
|
|
|
vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
|
|
if (!vtarget)
|
|
return -ENOMEM;
|
|
starget->hostdata = vtarget;
|
|
|
|
rc = -ENODEV;
|
|
rport = starget_to_rport(starget);
|
|
if (rport) {
|
|
ri = *((struct mptfc_rport_info **)rport->dd_data);
|
|
if (ri) { /* better be! */
|
|
vtarget->id = ri->pg0.CurrentTargetID;
|
|
vtarget->channel = ri->pg0.CurrentBus;
|
|
ri->starget = starget;
|
|
rc = 0;
|
|
}
|
|
}
|
|
if (rc != 0) {
|
|
kfree(vtarget);
|
|
starget->hostdata = NULL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
/*
|
|
* mptfc_dump_lun_info
|
|
* @ioc
|
|
* @rport
|
|
* @sdev
|
|
*
|
|
*/
|
|
static void
|
|
mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev,
|
|
VirtTarget *vtarget)
|
|
{
|
|
u64 nn, pn;
|
|
struct mptfc_rport_info *ri;
|
|
|
|
ri = *((struct mptfc_rport_info **)rport->dd_data);
|
|
pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
|
|
nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low;
|
|
dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
|
|
"mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
|
|
"CurrentTargetID %d, %x %llx %llx\n",
|
|
ioc->name,
|
|
sdev->host->host_no,
|
|
vtarget->num_luns,
|
|
sdev->id, ri->pg0.CurrentTargetID,
|
|
ri->pg0.PortIdentifier,
|
|
(unsigned long long)pn,
|
|
(unsigned long long)nn));
|
|
}
|
|
|
|
|
|
/*
|
|
* OS entry point to allow host driver to alloc memory
|
|
* for each scsi device. Called once per device the bus scan.
|
|
* Return non-zero if allocation fails.
|
|
* Init memory once per LUN.
|
|
*/
|
|
static int
|
|
mptfc_slave_alloc(struct scsi_device *sdev)
|
|
{
|
|
MPT_SCSI_HOST *hd;
|
|
VirtTarget *vtarget;
|
|
VirtDevice *vdevice;
|
|
struct scsi_target *starget;
|
|
struct fc_rport *rport;
|
|
MPT_ADAPTER *ioc;
|
|
|
|
starget = scsi_target(sdev);
|
|
rport = starget_to_rport(starget);
|
|
|
|
if (!rport || fc_remote_port_chkready(rport))
|
|
return -ENXIO;
|
|
|
|
hd = shost_priv(sdev->host);
|
|
ioc = hd->ioc;
|
|
|
|
vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
|
|
if (!vdevice) {
|
|
printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
|
|
ioc->name, sizeof(VirtDevice));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
|
|
sdev->hostdata = vdevice;
|
|
vtarget = starget->hostdata;
|
|
|
|
if (vtarget->num_luns == 0) {
|
|
vtarget->ioc_id = ioc->id;
|
|
vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
|
|
}
|
|
|
|
vdevice->vtarget = vtarget;
|
|
vdevice->lun = sdev->lun;
|
|
|
|
vtarget->num_luns++;
|
|
|
|
|
|
mptfc_dump_lun_info(ioc, rport, sdev, vtarget);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
|
|
{
|
|
struct mptfc_rport_info *ri;
|
|
struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
|
|
int err;
|
|
VirtDevice *vdevice = SCpnt->device->hostdata;
|
|
|
|
if (!vdevice || !vdevice->vtarget) {
|
|
SCpnt->result = DID_NO_CONNECT << 16;
|
|
SCpnt->scsi_done(SCpnt);
|
|
return 0;
|
|
}
|
|
|
|
err = fc_remote_port_chkready(rport);
|
|
if (unlikely(err)) {
|
|
SCpnt->result = err;
|
|
SCpnt->scsi_done(SCpnt);
|
|
return 0;
|
|
}
|
|
|
|
/* dd_data is null until finished adding target */
|
|
ri = *((struct mptfc_rport_info **)rport->dd_data);
|
|
if (unlikely(!ri)) {
|
|
SCpnt->result = DID_IMM_RETRY << 16;
|
|
SCpnt->scsi_done(SCpnt);
|
|
return 0;
|
|
}
|
|
|
|
return mptscsih_qcmd(SCpnt);
|
|
}
|
|
|
|
/*
|
|
* mptfc_display_port_link_speed - displaying link speed
|
|
* @ioc: Pointer to MPT_ADAPTER structure
|
|
* @portnum: IOC Port number
|
|
* @pp0dest: port page0 data payload
|
|
*
|
|
*/
|
|
static void
|
|
mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
|
|
{
|
|
u8 old_speed, new_speed, state;
|
|
char *old, *new;
|
|
|
|
if (portnum >= 2)
|
|
return;
|
|
|
|
old_speed = ioc->fc_link_speed[portnum];
|
|
new_speed = pp0dest->CurrentSpeed;
|
|
state = pp0dest->PortState;
|
|
|
|
if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
|
|
new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
|
|
|
|
old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
|
|
old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
|
|
old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
|
|
"Unknown";
|
|
new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
|
|
new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
|
|
new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
|
|
"Unknown";
|
|
if (old_speed == 0)
|
|
printk(MYIOC_s_NOTE_FMT
|
|
"FC Link Established, Speed = %s\n",
|
|
ioc->name, new);
|
|
else if (old_speed != new_speed)
|
|
printk(MYIOC_s_WARN_FMT
|
|
"FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
|
|
ioc->name, old, new);
|
|
|
|
ioc->fc_link_speed[portnum] = new_speed;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
|
|
* @ioc: Pointer to MPT_ADAPTER structure
|
|
* @portnum: IOC Port number
|
|
*
|
|
* Return: 0 for success
|
|
* -ENOMEM if no memory available
|
|
* -EPERM if not allowed due to ISR context
|
|
* -EAGAIN if no msg frames currently available
|
|
* -EFAULT for non-successful reply or no reply (timeout)
|
|
* -EINVAL portnum arg out of range (hardwired to two elements)
|
|
*/
|
|
static int
|
|
mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
|
|
{
|
|
ConfigPageHeader_t hdr;
|
|
CONFIGPARMS cfg;
|
|
FCPortPage0_t *ppage0_alloc;
|
|
FCPortPage0_t *pp0dest;
|
|
dma_addr_t page0_dma;
|
|
int data_sz;
|
|
int copy_sz;
|
|
int rc;
|
|
int count = 400;
|
|
|
|
if (portnum > 1)
|
|
return -EINVAL;
|
|
|
|
/* Get FCPort Page 0 header */
|
|
hdr.PageVersion = 0;
|
|
hdr.PageLength = 0;
|
|
hdr.PageNumber = 0;
|
|
hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
|
|
cfg.cfghdr.hdr = &hdr;
|
|
cfg.physAddr = -1;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
|
|
cfg.dir = 0;
|
|
cfg.pageAddr = portnum;
|
|
cfg.timeout = 0;
|
|
|
|
if ((rc = mpt_config(ioc, &cfg)) != 0)
|
|
return rc;
|
|
|
|
if (hdr.PageLength == 0)
|
|
return 0;
|
|
|
|
data_sz = hdr.PageLength * 4;
|
|
rc = -ENOMEM;
|
|
ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
|
|
if (ppage0_alloc) {
|
|
|
|
try_again:
|
|
memset((u8 *)ppage0_alloc, 0, data_sz);
|
|
cfg.physAddr = page0_dma;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
|
|
|
|
if ((rc = mpt_config(ioc, &cfg)) == 0) {
|
|
/* save the data */
|
|
pp0dest = &ioc->fc_port_page0[portnum];
|
|
copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz);
|
|
memcpy(pp0dest, ppage0_alloc, copy_sz);
|
|
|
|
/*
|
|
* Normalize endianness of structure data,
|
|
* by byte-swapping all > 1 byte fields!
|
|
*/
|
|
pp0dest->Flags = le32_to_cpu(pp0dest->Flags);
|
|
pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier);
|
|
pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low);
|
|
pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High);
|
|
pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low);
|
|
pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High);
|
|
pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass);
|
|
pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds);
|
|
pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed);
|
|
pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize);
|
|
pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low);
|
|
pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High);
|
|
pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low);
|
|
pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High);
|
|
pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount);
|
|
pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators);
|
|
|
|
/*
|
|
* if still doing discovery,
|
|
* hang loose a while until finished
|
|
*/
|
|
if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
|
|
(pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
|
|
(pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
|
|
== MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
|
|
if (count-- > 0) {
|
|
msleep(100);
|
|
goto try_again;
|
|
}
|
|
printk(MYIOC_s_INFO_FMT "Firmware discovery not"
|
|
" complete.\n",
|
|
ioc->name);
|
|
}
|
|
mptfc_display_port_link_speed(ioc, portnum, pp0dest);
|
|
}
|
|
|
|
pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum)
|
|
{
|
|
ConfigPageHeader_t hdr;
|
|
CONFIGPARMS cfg;
|
|
int rc;
|
|
|
|
if (portnum > 1)
|
|
return -EINVAL;
|
|
|
|
if (!(ioc->fc_data.fc_port_page1[portnum].data))
|
|
return -EINVAL;
|
|
|
|
/* get fcport page 1 header */
|
|
hdr.PageVersion = 0;
|
|
hdr.PageLength = 0;
|
|
hdr.PageNumber = 1;
|
|
hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
|
|
cfg.cfghdr.hdr = &hdr;
|
|
cfg.physAddr = -1;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
|
|
cfg.dir = 0;
|
|
cfg.pageAddr = portnum;
|
|
cfg.timeout = 0;
|
|
|
|
if ((rc = mpt_config(ioc, &cfg)) != 0)
|
|
return rc;
|
|
|
|
if (hdr.PageLength == 0)
|
|
return -ENODEV;
|
|
|
|
if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz)
|
|
return -EINVAL;
|
|
|
|
cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT;
|
|
cfg.dir = 1;
|
|
|
|
rc = mpt_config(ioc, &cfg);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
|
|
{
|
|
ConfigPageHeader_t hdr;
|
|
CONFIGPARMS cfg;
|
|
FCPortPage1_t *page1_alloc;
|
|
dma_addr_t page1_dma;
|
|
int data_sz;
|
|
int rc;
|
|
|
|
if (portnum > 1)
|
|
return -EINVAL;
|
|
|
|
/* get fcport page 1 header */
|
|
hdr.PageVersion = 0;
|
|
hdr.PageLength = 0;
|
|
hdr.PageNumber = 1;
|
|
hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT;
|
|
cfg.cfghdr.hdr = &hdr;
|
|
cfg.physAddr = -1;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
|
|
cfg.dir = 0;
|
|
cfg.pageAddr = portnum;
|
|
cfg.timeout = 0;
|
|
|
|
if ((rc = mpt_config(ioc, &cfg)) != 0)
|
|
return rc;
|
|
|
|
if (hdr.PageLength == 0)
|
|
return -ENODEV;
|
|
|
|
start_over:
|
|
|
|
if (ioc->fc_data.fc_port_page1[portnum].data == NULL) {
|
|
data_sz = hdr.PageLength * 4;
|
|
if (data_sz < sizeof(FCPortPage1_t))
|
|
data_sz = sizeof(FCPortPage1_t);
|
|
|
|
page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev,
|
|
data_sz,
|
|
&page1_dma);
|
|
if (!page1_alloc)
|
|
return -ENOMEM;
|
|
}
|
|
else {
|
|
page1_alloc = ioc->fc_data.fc_port_page1[portnum].data;
|
|
page1_dma = ioc->fc_data.fc_port_page1[portnum].dma;
|
|
data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
|
|
if (hdr.PageLength * 4 > data_sz) {
|
|
ioc->fc_data.fc_port_page1[portnum].data = NULL;
|
|
pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
|
|
page1_alloc, page1_dma);
|
|
goto start_over;
|
|
}
|
|
}
|
|
|
|
memset(page1_alloc,0,data_sz);
|
|
|
|
cfg.physAddr = page1_dma;
|
|
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
|
|
|
|
if ((rc = mpt_config(ioc, &cfg)) == 0) {
|
|
ioc->fc_data.fc_port_page1[portnum].data = page1_alloc;
|
|
ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz;
|
|
ioc->fc_data.fc_port_page1[portnum].dma = page1_dma;
|
|
}
|
|
else {
|
|
ioc->fc_data.fc_port_page1[portnum].data = NULL;
|
|
pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
|
|
page1_alloc, page1_dma);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
|
|
{
|
|
int ii;
|
|
FCPortPage1_t *pp1;
|
|
|
|
#define MPTFC_FW_DEVICE_TIMEOUT (1)
|
|
#define MPTFC_FW_IO_PEND_TIMEOUT (1)
|
|
#define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY)
|
|
#define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS)
|
|
|
|
for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
|
|
if (mptfc_GetFcPortPage1(ioc, ii) != 0)
|
|
continue;
|
|
pp1 = ioc->fc_data.fc_port_page1[ii].data;
|
|
if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT)
|
|
&& (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT)
|
|
&& ((pp1->Flags & ON_FLAGS) == ON_FLAGS)
|
|
&& ((pp1->Flags & OFF_FLAGS) == 0))
|
|
continue;
|
|
pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT;
|
|
pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT;
|
|
pp1->Flags &= ~OFF_FLAGS;
|
|
pp1->Flags |= ON_FLAGS;
|
|
mptfc_WriteFcPortPage1(ioc, ii);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
|
|
{
|
|
unsigned class = 0;
|
|
unsigned cos = 0;
|
|
unsigned speed;
|
|
unsigned port_type;
|
|
unsigned port_state;
|
|
FCPortPage0_t *pp0;
|
|
struct Scsi_Host *sh;
|
|
char *sn;
|
|
|
|
/* don't know what to do as only one scsi (fc) host was allocated */
|
|
if (portnum != 0)
|
|
return;
|
|
|
|
pp0 = &ioc->fc_port_page0[portnum];
|
|
sh = ioc->sh;
|
|
|
|
sn = fc_host_symbolic_name(sh);
|
|
snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
|
|
ioc->prod_name,
|
|
MPT_FW_REV_MAGIC_ID_STRING,
|
|
ioc->facts.FWVersion.Word);
|
|
|
|
fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
|
|
|
|
fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
|
|
|
|
fc_host_node_name(sh) =
|
|
(u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
|
|
|
|
fc_host_port_name(sh) =
|
|
(u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
|
|
|
|
fc_host_port_id(sh) = pp0->PortIdentifier;
|
|
|
|
class = pp0->SupportedServiceClass;
|
|
if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
|
|
cos |= FC_COS_CLASS1;
|
|
if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
|
|
cos |= FC_COS_CLASS2;
|
|
if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
|
|
cos |= FC_COS_CLASS3;
|
|
fc_host_supported_classes(sh) = cos;
|
|
|
|
if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
|
|
speed = FC_PORTSPEED_1GBIT;
|
|
else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
|
|
speed = FC_PORTSPEED_2GBIT;
|
|
else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
|
|
speed = FC_PORTSPEED_4GBIT;
|
|
else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
|
|
speed = FC_PORTSPEED_10GBIT;
|
|
else
|
|
speed = FC_PORTSPEED_UNKNOWN;
|
|
fc_host_speed(sh) = speed;
|
|
|
|
speed = 0;
|
|
if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
|
|
speed |= FC_PORTSPEED_1GBIT;
|
|
if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
|
|
speed |= FC_PORTSPEED_2GBIT;
|
|
if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
|
|
speed |= FC_PORTSPEED_4GBIT;
|
|
if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
|
|
speed |= FC_PORTSPEED_10GBIT;
|
|
fc_host_supported_speeds(sh) = speed;
|
|
|
|
port_state = FC_PORTSTATE_UNKNOWN;
|
|
if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
|
|
port_state = FC_PORTSTATE_ONLINE;
|
|
else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
|
|
port_state = FC_PORTSTATE_LINKDOWN;
|
|
fc_host_port_state(sh) = port_state;
|
|
|
|
port_type = FC_PORTTYPE_UNKNOWN;
|
|
if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
|
|
port_type = FC_PORTTYPE_PTP;
|
|
else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
|
|
port_type = FC_PORTTYPE_LPORT;
|
|
else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
|
|
port_type = FC_PORTTYPE_NLPORT;
|
|
else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
|
|
port_type = FC_PORTTYPE_NPORT;
|
|
fc_host_port_type(sh) = port_type;
|
|
|
|
fc_host_fabric_name(sh) =
|
|
(pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
|
|
(u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
|
|
(u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
|
|
|
|
}
|
|
|
|
static void
|
|
mptfc_link_status_change(struct work_struct *work)
|
|
{
|
|
MPT_ADAPTER *ioc =
|
|
container_of(work, MPT_ADAPTER, fc_rescan_work);
|
|
int ii;
|
|
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
|
|
(void) mptfc_GetFcPortPage0(ioc, ii);
|
|
|
|
}
|
|
|
|
static void
|
|
mptfc_setup_reset(struct work_struct *work)
|
|
{
|
|
MPT_ADAPTER *ioc =
|
|
container_of(work, MPT_ADAPTER, fc_setup_reset_work);
|
|
u64 pn;
|
|
struct mptfc_rport_info *ri;
|
|
struct scsi_target *starget;
|
|
VirtTarget *vtarget;
|
|
|
|
/* reset about to happen, delete (block) all rports */
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
|
|
ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
|
|
fc_remote_port_delete(ri->rport); /* won't sleep */
|
|
ri->rport = NULL;
|
|
starget = ri->starget;
|
|
if (starget) {
|
|
vtarget = starget->hostdata;
|
|
if (vtarget)
|
|
vtarget->deleted = 1;
|
|
}
|
|
|
|
pn = (u64)ri->pg0.WWPN.High << 32 |
|
|
(u64)ri->pg0.WWPN.Low;
|
|
dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
|
|
"mptfc_setup_reset.%d: %llx deleted\n",
|
|
ioc->name,
|
|
ioc->sh->host_no,
|
|
(unsigned long long)pn));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
mptfc_rescan_devices(struct work_struct *work)
|
|
{
|
|
MPT_ADAPTER *ioc =
|
|
container_of(work, MPT_ADAPTER, fc_rescan_work);
|
|
int ii;
|
|
u64 pn;
|
|
struct mptfc_rport_info *ri;
|
|
struct scsi_target *starget;
|
|
VirtTarget *vtarget;
|
|
|
|
/* start by tagging all ports as missing */
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
|
|
ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* now rescan devices known to adapter,
|
|
* will reregister existing rports
|
|
*/
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
|
|
(void) mptfc_GetFcPortPage0(ioc, ii);
|
|
mptfc_init_host_attr(ioc, ii); /* refresh */
|
|
mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
|
|
}
|
|
|
|
/* delete devices still missing */
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
/* if newly missing, delete it */
|
|
if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
|
|
|
|
ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
|
|
MPT_RPORT_INFO_FLAGS_MISSING);
|
|
fc_remote_port_delete(ri->rport); /* won't sleep */
|
|
ri->rport = NULL;
|
|
starget = ri->starget;
|
|
if (starget) {
|
|
vtarget = starget->hostdata;
|
|
if (vtarget)
|
|
vtarget->deleted = 1;
|
|
}
|
|
|
|
pn = (u64)ri->pg0.WWPN.High << 32 |
|
|
(u64)ri->pg0.WWPN.Low;
|
|
dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
|
|
"mptfc_rescan.%d: %llx deleted\n",
|
|
ioc->name,
|
|
ioc->sh->host_no,
|
|
(unsigned long long)pn));
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct Scsi_Host *sh;
|
|
MPT_SCSI_HOST *hd;
|
|
MPT_ADAPTER *ioc;
|
|
unsigned long flags;
|
|
int ii;
|
|
int numSGE = 0;
|
|
int scale;
|
|
int ioc_cap;
|
|
int error=0;
|
|
int r;
|
|
|
|
if ((r = mpt_attach(pdev,id)) != 0)
|
|
return r;
|
|
|
|
ioc = pci_get_drvdata(pdev);
|
|
ioc->DoneCtx = mptfcDoneCtx;
|
|
ioc->TaskCtx = mptfcTaskCtx;
|
|
ioc->InternalCtx = mptfcInternalCtx;
|
|
|
|
/* Added sanity check on readiness of the MPT adapter.
|
|
*/
|
|
if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
|
|
printk(MYIOC_s_WARN_FMT
|
|
"Skipping because it's not operational!\n",
|
|
ioc->name);
|
|
error = -ENODEV;
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
if (!ioc->active) {
|
|
printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
|
|
ioc->name);
|
|
error = -ENODEV;
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
/* Sanity check - ensure at least 1 port is INITIATOR capable
|
|
*/
|
|
ioc_cap = 0;
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
|
|
if (ioc->pfacts[ii].ProtocolFlags &
|
|
MPI_PORTFACTS_PROTOCOL_INITIATOR)
|
|
ioc_cap ++;
|
|
}
|
|
|
|
if (!ioc_cap) {
|
|
printk(MYIOC_s_WARN_FMT
|
|
"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
|
|
ioc->name, ioc);
|
|
return 0;
|
|
}
|
|
|
|
sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
|
|
|
|
if (!sh) {
|
|
printk(MYIOC_s_WARN_FMT
|
|
"Unable to register controller with SCSI subsystem\n",
|
|
ioc->name);
|
|
error = -1;
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
spin_lock_init(&ioc->fc_rescan_work_lock);
|
|
INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
|
|
INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
|
|
INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
|
|
|
|
spin_lock_irqsave(&ioc->FreeQlock, flags);
|
|
|
|
/* Attach the SCSI Host to the IOC structure
|
|
*/
|
|
ioc->sh = sh;
|
|
|
|
sh->io_port = 0;
|
|
sh->n_io_port = 0;
|
|
sh->irq = 0;
|
|
|
|
/* set 16 byte cdb's */
|
|
sh->max_cmd_len = 16;
|
|
|
|
sh->max_id = ioc->pfacts->MaxDevices;
|
|
sh->max_lun = max_lun;
|
|
|
|
/* Required entry.
|
|
*/
|
|
sh->unique_id = ioc->id;
|
|
|
|
/* Verify that we won't exceed the maximum
|
|
* number of chain buffers
|
|
* We can optimize: ZZ = req_sz/sizeof(SGE)
|
|
* For 32bit SGE's:
|
|
* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
|
|
* + (req_sz - 64)/sizeof(SGE)
|
|
* A slightly different algorithm is required for
|
|
* 64bit SGEs.
|
|
*/
|
|
scale = ioc->req_sz/ioc->SGE_size;
|
|
if (ioc->sg_addr_size == sizeof(u64)) {
|
|
numSGE = (scale - 1) *
|
|
(ioc->facts.MaxChainDepth-1) + scale +
|
|
(ioc->req_sz - 60) / ioc->SGE_size;
|
|
} else {
|
|
numSGE = 1 + (scale - 1) *
|
|
(ioc->facts.MaxChainDepth-1) + scale +
|
|
(ioc->req_sz - 64) / ioc->SGE_size;
|
|
}
|
|
|
|
if (numSGE < sh->sg_tablesize) {
|
|
/* Reset this value */
|
|
dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
|
|
"Resetting sg_tablesize to %d from %d\n",
|
|
ioc->name, numSGE, sh->sg_tablesize));
|
|
sh->sg_tablesize = numSGE;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&ioc->FreeQlock, flags);
|
|
|
|
hd = shost_priv(sh);
|
|
hd->ioc = ioc;
|
|
|
|
/* SCSI needs scsi_cmnd lookup table!
|
|
* (with size equal to req_depth*PtrSz!)
|
|
*/
|
|
ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
|
|
if (!ioc->ScsiLookup) {
|
|
error = -ENOMEM;
|
|
goto out_mptfc_probe;
|
|
}
|
|
spin_lock_init(&ioc->scsi_lookup_lock);
|
|
|
|
dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
|
|
ioc->name, ioc->ScsiLookup));
|
|
|
|
hd->last_queue_full = 0;
|
|
|
|
sh->transportt = mptfc_transport_template;
|
|
error = scsi_add_host (sh, &ioc->pcidev->dev);
|
|
if(error) {
|
|
dprintk(ioc, printk(MYIOC_s_ERR_FMT
|
|
"scsi_add_host failed\n", ioc->name));
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
/* initialize workqueue */
|
|
|
|
snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
|
|
"mptfc_wq_%d", sh->host_no);
|
|
ioc->fc_rescan_work_q =
|
|
alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
|
|
WQ_MEM_RECLAIM);
|
|
if (!ioc->fc_rescan_work_q) {
|
|
error = -ENOMEM;
|
|
goto out_mptfc_host;
|
|
}
|
|
|
|
/*
|
|
* Pre-fetch FC port WWN and stuff...
|
|
* (FCPortPage0_t stuff)
|
|
*/
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
|
|
(void) mptfc_GetFcPortPage0(ioc, ii);
|
|
}
|
|
mptfc_SetFcPortPage1_defaults(ioc);
|
|
|
|
/*
|
|
* scan for rports -
|
|
* by doing it via the workqueue, some locking is eliminated
|
|
*/
|
|
|
|
queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
|
|
flush_workqueue(ioc->fc_rescan_work_q);
|
|
|
|
return 0;
|
|
|
|
out_mptfc_host:
|
|
scsi_remove_host(sh);
|
|
|
|
out_mptfc_probe:
|
|
|
|
mptscsih_remove(pdev);
|
|
return error;
|
|
}
|
|
|
|
static struct pci_driver mptfc_driver = {
|
|
.name = "mptfc",
|
|
.id_table = mptfc_pci_table,
|
|
.probe = mptfc_probe,
|
|
.remove = mptfc_remove,
|
|
.shutdown = mptscsih_shutdown,
|
|
#ifdef CONFIG_PM
|
|
.suspend = mptscsih_suspend,
|
|
.resume = mptscsih_resume,
|
|
#endif
|
|
};
|
|
|
|
static int
|
|
mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
|
|
{
|
|
MPT_SCSI_HOST *hd;
|
|
u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
|
|
unsigned long flags;
|
|
int rc=1;
|
|
|
|
if (ioc->bus_type != FC)
|
|
return 0;
|
|
|
|
devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
|
|
ioc->name, event));
|
|
|
|
if (ioc->sh == NULL ||
|
|
((hd = shost_priv(ioc->sh)) == NULL))
|
|
return 1;
|
|
|
|
switch (event) {
|
|
case MPI_EVENT_RESCAN:
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
if (ioc->fc_rescan_work_q) {
|
|
queue_work(ioc->fc_rescan_work_q,
|
|
&ioc->fc_rescan_work);
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
break;
|
|
case MPI_EVENT_LINK_STATUS_CHANGE:
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
if (ioc->fc_rescan_work_q) {
|
|
queue_work(ioc->fc_rescan_work_q,
|
|
&ioc->fc_lsc_work);
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
break;
|
|
default:
|
|
rc = mptscsih_event_process(ioc,pEvReply);
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
|
|
{
|
|
int rc;
|
|
unsigned long flags;
|
|
|
|
rc = mptscsih_ioc_reset(ioc,reset_phase);
|
|
if ((ioc->bus_type != FC) || (!rc))
|
|
return rc;
|
|
|
|
|
|
dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
|
|
": IOC %s_reset routed to FC host driver!\n",ioc->name,
|
|
reset_phase==MPT_IOC_SETUP_RESET ? "setup" : (
|
|
reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post")));
|
|
|
|
if (reset_phase == MPT_IOC_SETUP_RESET) {
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
if (ioc->fc_rescan_work_q) {
|
|
queue_work(ioc->fc_rescan_work_q,
|
|
&ioc->fc_setup_reset_work);
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
}
|
|
|
|
else if (reset_phase == MPT_IOC_PRE_RESET) {
|
|
}
|
|
|
|
else { /* MPT_IOC_POST_RESET */
|
|
mptfc_SetFcPortPage1_defaults(ioc);
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
if (ioc->fc_rescan_work_q) {
|
|
queue_work(ioc->fc_rescan_work_q,
|
|
&ioc->fc_rescan_work);
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/**
|
|
* mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer.
|
|
*
|
|
* Returns 0 for success, non-zero for failure.
|
|
*/
|
|
static int __init
|
|
mptfc_init(void)
|
|
{
|
|
int error;
|
|
|
|
show_mptmod_ver(my_NAME, my_VERSION);
|
|
|
|
/* sanity check module parameters */
|
|
if (mptfc_dev_loss_tmo <= 0)
|
|
mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO;
|
|
|
|
mptfc_transport_template =
|
|
fc_attach_transport(&mptfc_transport_functions);
|
|
|
|
if (!mptfc_transport_template)
|
|
return -ENODEV;
|
|
|
|
mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER,
|
|
"mptscsih_scandv_complete");
|
|
mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER,
|
|
"mptscsih_scandv_complete");
|
|
mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER,
|
|
"mptscsih_scandv_complete");
|
|
|
|
mpt_event_register(mptfcDoneCtx, mptfc_event_process);
|
|
mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset);
|
|
|
|
error = pci_register_driver(&mptfc_driver);
|
|
if (error)
|
|
fc_release_transport(mptfc_transport_template);
|
|
|
|
return error;
|
|
}
|
|
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/**
|
|
* mptfc_remove - Remove fc infrastructure for devices
|
|
* @pdev: Pointer to pci_dev structure
|
|
*
|
|
*/
|
|
static void mptfc_remove(struct pci_dev *pdev)
|
|
{
|
|
MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
|
|
struct mptfc_rport_info *p, *n;
|
|
struct workqueue_struct *work_q;
|
|
unsigned long flags;
|
|
int ii;
|
|
|
|
/* destroy workqueue */
|
|
if ((work_q=ioc->fc_rescan_work_q)) {
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
ioc->fc_rescan_work_q = NULL;
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
destroy_workqueue(work_q);
|
|
}
|
|
|
|
fc_remove_host(ioc->sh);
|
|
|
|
list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
|
|
list_del(&p->list);
|
|
kfree(p);
|
|
}
|
|
|
|
for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
|
|
if (ioc->fc_data.fc_port_page1[ii].data) {
|
|
pci_free_consistent(ioc->pcidev,
|
|
ioc->fc_data.fc_port_page1[ii].pg_sz,
|
|
(u8 *) ioc->fc_data.fc_port_page1[ii].data,
|
|
ioc->fc_data.fc_port_page1[ii].dma);
|
|
ioc->fc_data.fc_port_page1[ii].data = NULL;
|
|
}
|
|
}
|
|
|
|
scsi_remove_host(ioc->sh);
|
|
|
|
mptscsih_remove(pdev);
|
|
}
|
|
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/**
|
|
* mptfc_exit - Unregisters MPT adapter(s)
|
|
*
|
|
*/
|
|
static void __exit
|
|
mptfc_exit(void)
|
|
{
|
|
pci_unregister_driver(&mptfc_driver);
|
|
fc_release_transport(mptfc_transport_template);
|
|
|
|
mpt_reset_deregister(mptfcDoneCtx);
|
|
mpt_event_deregister(mptfcDoneCtx);
|
|
|
|
mpt_deregister(mptfcInternalCtx);
|
|
mpt_deregister(mptfcTaskCtx);
|
|
mpt_deregister(mptfcDoneCtx);
|
|
}
|
|
|
|
module_init(mptfc_init);
|
|
module_exit(mptfc_exit);
|