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1552 lines
42 KiB
1552 lines
42 KiB
/* |
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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:[email protected]) |
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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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|
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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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|
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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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|
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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> |
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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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|
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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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|
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#include "mptbase.h" |
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#include "mptscsih.h" |
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|
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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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|
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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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|
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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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|
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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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|
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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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.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, |
|
}; |
|
|
|
static int |
|
mptfc_block_error_handler(struct scsi_cmnd *SCpnt, |
|
int (*func)(struct scsi_cmnd *SCpnt), |
|
const char *caller) |
|
{ |
|
MPT_SCSI_HOST *hd; |
|
struct scsi_device *sdev = SCpnt->device; |
|
struct Scsi_Host *shost = sdev->host; |
|
struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
|
unsigned long flags; |
|
int ready; |
|
MPT_ADAPTER *ioc; |
|
int loops = 40; /* seconds */ |
|
|
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hd = shost_priv(SCpnt->device->host); |
|
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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|
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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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|
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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; |
|
dma_addr_t page0_dma; |
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int data_sz; |
|
int ii; |
|
|
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FCDevicePage0_t *p0_array=NULL, *p_p0; |
|
FCDevicePage0_t **pp0_array=NULL, **p_pp0; |
|
|
|
int rc = -ENOMEM; |
|
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); |
|
if (!p0_array) |
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goto out; |
|
|
|
data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; |
|
p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); |
|
if (!pp0_array) |
|
goto out; |
|
|
|
do { |
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/* Get FC Device Page 0 header */ |
|
hdr.PageVersion = 0; |
|
hdr.PageLength = 0; |
|
hdr.PageNumber = 0; |
|
hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; |
|
cfg.cfghdr.hdr = &hdr; |
|
cfg.physAddr = -1; |
|
cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; |
|
cfg.dir = 0; |
|
cfg.pageAddr = port_id; |
|
cfg.timeout = 0; |
|
|
|
if ((rc = mpt_config(ioc, &cfg)) != 0) |
|
break; |
|
|
|
if (hdr.PageLength <= 0) |
|
break; |
|
|
|
data_sz = hdr.PageLength * 4; |
|
ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, |
|
&page0_dma, GFP_KERNEL); |
|
rc = -ENOMEM; |
|
if (!ppage0_alloc) |
|
break; |
|
|
|
cfg.physAddr = page0_dma; |
|
cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; |
|
|
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if ((rc = mpt_config(ioc, &cfg)) == 0) { |
|
ppage0_alloc->PortIdentifier = |
|
le32_to_cpu(ppage0_alloc->PortIdentifier); |
|
|
|
ppage0_alloc->WWNN.Low = |
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le32_to_cpu(ppage0_alloc->WWNN.Low); |
|
|
|
ppage0_alloc->WWNN.High = |
|
le32_to_cpu(ppage0_alloc->WWNN.High); |
|
|
|
ppage0_alloc->WWPN.Low = |
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le32_to_cpu(ppage0_alloc->WWPN.Low); |
|
|
|
ppage0_alloc->WWPN.High = |
|
le32_to_cpu(ppage0_alloc->WWPN.High); |
|
|
|
ppage0_alloc->BBCredit = |
|
le16_to_cpu(ppage0_alloc->BBCredit); |
|
|
|
ppage0_alloc->MaxRxFrameSize = |
|
le16_to_cpu(ppage0_alloc->MaxRxFrameSize); |
|
|
|
port_id = ppage0_alloc->PortIdentifier; |
|
num_targ++; |
|
*p_p0 = *ppage0_alloc; /* save data */ |
|
*p_pp0++ = p_p0++; /* save addr */ |
|
} |
|
dma_free_coherent(&ioc->pcidev->dev, data_sz, |
|
ppage0_alloc, page0_dma); |
|
if (rc != 0) |
|
break; |
|
|
|
} while (port_id <= 0xff0000); |
|
|
|
if (num_targ) { |
|
/* sort array */ |
|
if (num_targ > 1) |
|
sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), |
|
mptfc_FcDevPage0_cmp_func, NULL); |
|
/* call caller's func for each targ */ |
|
for (ii = 0; ii < num_targ; ii++) { |
|
fc = *(pp0_array+ii); |
|
func(ioc, ioc_port, fc); |
|
} |
|
} |
|
|
|
out: |
|
kfree(pp0_array); |
|
kfree(p0_array); |
|
return rc; |
|
} |
|
|
|
static int |
|
mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) |
|
{ |
|
/* not currently usable */ |
|
if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | |
|
MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) |
|
return -1; |
|
|
|
if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) |
|
return -1; |
|
|
|
if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) |
|
return -1; |
|
|
|
/* |
|
* board data structure already normalized to platform endianness |
|
* shifted to avoid unaligned access on 64 bit architecture |
|
*/ |
|
rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; |
|
rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; |
|
rid->port_id = pg0->PortIdentifier; |
|
rid->roles = FC_RPORT_ROLE_UNKNOWN; |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) |
|
{ |
|
struct fc_rport_identifiers rport_ids; |
|
struct fc_rport *rport; |
|
struct mptfc_rport_info *ri; |
|
int new_ri = 1; |
|
u64 pn, nn; |
|
VirtTarget *vtarget; |
|
u32 roles = FC_RPORT_ROLE_UNKNOWN; |
|
|
|
if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) |
|
return; |
|
|
|
roles |= FC_RPORT_ROLE_FCP_TARGET; |
|
if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) |
|
roles |= FC_RPORT_ROLE_FCP_INITIATOR; |
|
|
|
/* 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_UNKNOWN) { |
|
|
|
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 = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, |
|
&page0_dma, GFP_KERNEL); |
|
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); |
|
} |
|
|
|
dma_free_coherent(&ioc->pcidev->dev, data_sz, 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 = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, |
|
&page1_dma, GFP_KERNEL); |
|
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; |
|
dma_free_coherent(&ioc->pcidev->dev, data_sz, |
|
page1_alloc, page1_dma); |
|
goto start_over; |
|
} |
|
} |
|
|
|
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; |
|
dma_free_coherent(&ioc->pcidev->dev, data_sz, 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_KERNEL); |
|
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) { |
|
dma_free_coherent(&ioc->pcidev->dev, |
|
ioc->fc_data.fc_port_page1[ii].pg_sz, |
|
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); |
|
} |
|
|
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module_init(mptfc_init); |
|
module_exit(mptfc_exit);
|
|
|