![Adrian Bunk](/assets/img/avatar_default.png)
This patch makes two needlessly global functions static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1009 lines
27 KiB
C
1009 lines
27 KiB
C
/*
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* linux/drivers/message/fusion/mptfc.c
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* For use with LSI Logic PCI chip/adapter(s)
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* running LSI Logic Fusion MPT (Message Passing Technology) firmware.
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*
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* Copyright (c) 1999-2005 LSI Logic Corporation
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* (mailto:mpt_linux_developer@lsil.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_compat.h" /* linux-2.6 tweaks */
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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/sched.h>
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#include <linux/workqueue.h>
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#include <linux/sort.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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/* Command line args */
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static int mpt_pq_filter = 0;
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module_param(mpt_pq_filter, int, 0);
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MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
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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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static int mptfcDoneCtx = -1;
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static int mptfcTaskCtx = -1;
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static int mptfcInternalCtx = -1; /* Used only for internal commands */
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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_cmnd *SCpnt,
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void (*done)(struct scsi_cmnd *));
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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 __devexit mptfc_remove(struct pci_dev *pdev);
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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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.proc_info = mptscsih_proc_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_abort_handler = mptscsih_abort,
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.eh_device_reset_handler = mptscsih_dev_reset,
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.eh_bus_reset_handler = mptscsih_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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};
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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, PCI_DEVICE_ID_LSI_FC909,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
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PCI_ANY_ID, PCI_ANY_ID },
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{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949ES,
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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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};
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/* FIXME! values controlling firmware RESCAN event
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* need to be set low to allow dev_loss_tmo to
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* work as expected. Currently, firmware doesn't
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* notify driver of RESCAN event until some number
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* of seconds elapse. This value can be set via
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* lsiutil.
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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 = ioc->facts.MaxDevices;
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if (max_bus == 0 || max_targ == 0)
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goto out;
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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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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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} while (port_id <= 0xff0000);
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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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out:
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if (pp0_array)
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kfree(pp0_array);
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if (p0_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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if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID))
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return -1;
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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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* 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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rid->roles |= FC_RPORT_ROLE_FCP_TARGET;
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if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR)
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rid->roles |= FC_RPORT_ROLE_FCP_INITIATOR;
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return 0;
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}
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static void
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mptfc_remap_sdev(struct scsi_device *sdev, void *arg)
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{
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VirtDevice *vdev;
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VirtTarget *vtarget;
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struct scsi_target *starget;
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starget = scsi_target(sdev);
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if (starget->hostdata == arg) {
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vtarget = arg;
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vdev = sdev->hostdata;
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if (vdev) {
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vdev->bus_id = vtarget->bus_id;
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vdev->target_id = vtarget->target_id;
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}
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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;
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unsigned long flags;
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VirtTarget *vtarget;
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if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
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return;
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/* scan list looking for a match */
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spin_lock_irqsave(&ioc->fc_rport_lock, flags);
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list_for_each_entry(ri, &ioc->fc_rports, list) {
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pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
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if (pn == rport_ids.port_name) { /* match */
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list_move_tail(&ri->list, &ioc->fc_rports);
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new_ri = 0;
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break;
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}
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}
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if (new_ri) { /* allocate one */
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spin_unlock_irqrestore(&ioc->fc_rport_lock, flags);
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ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
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if (!ri)
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return;
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spin_lock_irqsave(&ioc->fc_rport_lock, flags);
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list_add_tail(&ri->list, &ioc->fc_rports);
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}
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ri->pg0 = *pg0; /* add/update pg0 data */
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ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
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/* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
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if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
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ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
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spin_unlock_irqrestore(&ioc->fc_rport_lock, flags);
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rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
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spin_lock_irqsave(&ioc->fc_rport_lock, flags);
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if (rport) {
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ri->rport = rport;
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if (new_ri) /* may have been reset by user */
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rport->dev_loss_tmo = mptfc_dev_loss_tmo;
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*((struct mptfc_rport_info **)rport->dd_data) = ri;
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/*
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* if already mapped, remap here. If not mapped,
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* target_alloc will allocate vtarget and map,
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* slave_alloc will fill in vdev from vtarget.
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*/
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if (ri->starget) {
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vtarget = ri->starget->hostdata;
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if (vtarget) {
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vtarget->target_id = pg0->CurrentTargetID;
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vtarget->bus_id = pg0->CurrentBus;
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starget_for_each_device(ri->starget,
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vtarget,mptfc_remap_sdev);
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}
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ri->remap_needed = 0;
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}
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dfcprintk ((MYIOC_s_INFO_FMT
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"mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
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"rport tid %d, tmo %d\n",
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ioc->name,
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oc->sh->host_no,
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pg0->PortIdentifier,
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pg0->WWNN,
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pg0->WWPN,
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pg0->CurrentTargetID,
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ri->rport->scsi_target_id,
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ri->rport->dev_loss_tmo));
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} else {
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list_del(&ri->list);
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|
kfree(ri);
|
|
ri = NULL;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rport_lock,flags);
|
|
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
if (starget->hostdata)
|
|
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->target_id = ri->pg0.CurrentTargetID;
|
|
vtarget->bus_id = ri->pg0.CurrentBus;
|
|
ri->starget = starget;
|
|
ri->remap_needed = 0;
|
|
rc = 0;
|
|
}
|
|
}
|
|
if (rc != 0) {
|
|
kfree(vtarget);
|
|
starget->hostdata = NULL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* 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 *vdev;
|
|
struct scsi_target *starget;
|
|
struct fc_rport *rport;
|
|
unsigned long flags;
|
|
|
|
|
|
rport = starget_to_rport(scsi_target(sdev));
|
|
|
|
if (!rport || fc_remote_port_chkready(rport))
|
|
return -ENXIO;
|
|
|
|
hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
|
|
|
|
vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
|
|
if (!vdev) {
|
|
printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
|
|
hd->ioc->name, sizeof(VirtDevice));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
spin_lock_irqsave(&hd->ioc->fc_rport_lock,flags);
|
|
|
|
sdev->hostdata = vdev;
|
|
starget = scsi_target(sdev);
|
|
vtarget = starget->hostdata;
|
|
|
|
if (vtarget->num_luns == 0) {
|
|
vtarget->ioc_id = hd->ioc->id;
|
|
vtarget->tflags = MPT_TARGET_FLAGS_Q_YES |
|
|
MPT_TARGET_FLAGS_VALID_INQUIRY;
|
|
hd->Targets[sdev->id] = vtarget;
|
|
}
|
|
|
|
vdev->vtarget = vtarget;
|
|
vdev->ioc_id = hd->ioc->id;
|
|
vdev->lun = sdev->lun;
|
|
vdev->target_id = vtarget->target_id;
|
|
vdev->bus_id = vtarget->bus_id;
|
|
|
|
spin_unlock_irqrestore(&hd->ioc->fc_rport_lock,flags);
|
|
|
|
vtarget->num_luns++;
|
|
|
|
dfcprintk ((MYIOC_s_INFO_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, ri->pg0.WWPN, ri->pg0.WWNN));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
|
|
{
|
|
struct mptfc_rport_info *ri;
|
|
struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
|
|
int err;
|
|
|
|
err = fc_remote_port_chkready(rport);
|
|
if (unlikely(err)) {
|
|
SCpnt->result = err;
|
|
done(SCpnt);
|
|
return 0;
|
|
}
|
|
ri = *((struct mptfc_rport_info **)rport->dd_data);
|
|
if (unlikely(ri->remap_needed))
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
|
return mptscsih_qcmd(SCpnt,done);
|
|
}
|
|
|
|
static void
|
|
mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
|
|
{
|
|
unsigned class = 0, cos = 0;
|
|
|
|
/* don't know what to do as only one scsi (fc) host was allocated */
|
|
if (portnum != 0)
|
|
return;
|
|
|
|
class = ioc->fc_port_page0[portnum].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_node_name(ioc->sh) =
|
|
(u64)ioc->fc_port_page0[portnum].WWNN.High << 32
|
|
| (u64)ioc->fc_port_page0[portnum].WWNN.Low;
|
|
|
|
fc_host_port_name(ioc->sh) =
|
|
(u64)ioc->fc_port_page0[portnum].WWPN.High << 32
|
|
| (u64)ioc->fc_port_page0[portnum].WWPN.Low;
|
|
|
|
fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier;
|
|
|
|
fc_host_supported_classes(ioc->sh) = cos;
|
|
|
|
fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN;
|
|
}
|
|
|
|
static void
|
|
mptfc_rescan_devices(void *arg)
|
|
{
|
|
MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
|
|
int ii;
|
|
int work_to_do;
|
|
unsigned long flags;
|
|
struct mptfc_rport_info *ri;
|
|
|
|
do {
|
|
/* start by tagging all ports as missing */
|
|
spin_lock_irqsave(&ioc->fc_rport_lock,flags);
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
|
|
ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rport_lock,flags);
|
|
|
|
/*
|
|
* now rescan devices known to adapter,
|
|
* will reregister existing rports
|
|
*/
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
|
|
(void) mptbase_GetFcPortPage0(ioc, ii);
|
|
mptfc_init_host_attr(ioc,ii); /* refresh */
|
|
mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
|
|
}
|
|
|
|
/* delete devices still missing */
|
|
spin_lock_irqsave(&ioc->fc_rport_lock, flags);
|
|
list_for_each_entry(ri, &ioc->fc_rports, list) {
|
|
/* if newly missing, delete it */
|
|
if ((ri->flags & (MPT_RPORT_INFO_FLAGS_REGISTERED |
|
|
MPT_RPORT_INFO_FLAGS_MISSING))
|
|
== (MPT_RPORT_INFO_FLAGS_REGISTERED |
|
|
MPT_RPORT_INFO_FLAGS_MISSING)) {
|
|
|
|
ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
|
|
MPT_RPORT_INFO_FLAGS_MISSING);
|
|
ri->remap_needed = 1;
|
|
fc_remote_port_delete(ri->rport);
|
|
/*
|
|
* remote port not really deleted 'cause
|
|
* binding is by WWPN and driver only
|
|
* registers FCP_TARGETs but cannot trust
|
|
* data structures.
|
|
*/
|
|
ri->rport = NULL;
|
|
dfcprintk ((MYIOC_s_INFO_FMT
|
|
"mptfc_rescan.%d: %llx deleted\n",
|
|
ioc->name,
|
|
ioc->sh->host_no,
|
|
ri->pg0.WWPN));
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&ioc->fc_rport_lock,flags);
|
|
|
|
/*
|
|
* allow multiple passes as target state
|
|
* might have changed during scan
|
|
*/
|
|
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
|
|
if (ioc->fc_rescan_work_count > 2) /* only need one more */
|
|
ioc->fc_rescan_work_count = 2;
|
|
work_to_do = --ioc->fc_rescan_work_count;
|
|
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
|
|
} while (work_to_do);
|
|
}
|
|
|
|
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 -ENODEV;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices,(void *)ioc);
|
|
|
|
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 = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
|
|
|
|
sh->max_lun = MPT_LAST_LUN + 1;
|
|
sh->max_channel = 0;
|
|
sh->this_id = ioc->pfacts[0].PortSCSIID;
|
|
|
|
/* 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/(sizeof(dma_addr_t) + sizeof(u32));
|
|
if (sizeof(dma_addr_t) == sizeof(u64)) {
|
|
numSGE = (scale - 1) *
|
|
(ioc->facts.MaxChainDepth-1) + scale +
|
|
(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
|
|
sizeof(u32));
|
|
} else {
|
|
numSGE = 1 + (scale - 1) *
|
|
(ioc->facts.MaxChainDepth-1) + scale +
|
|
(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
|
|
sizeof(u32));
|
|
}
|
|
|
|
if (numSGE < sh->sg_tablesize) {
|
|
/* Reset this value */
|
|
dprintk((MYIOC_s_INFO_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 = (MPT_SCSI_HOST *) sh->hostdata;
|
|
hd->ioc = ioc;
|
|
|
|
/* SCSI needs scsi_cmnd lookup table!
|
|
* (with size equal to req_depth*PtrSz!)
|
|
*/
|
|
hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
|
|
if (!hd->ScsiLookup) {
|
|
error = -ENOMEM;
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
|
|
ioc->name, hd->ScsiLookup));
|
|
|
|
/* Allocate memory for the device structures.
|
|
* A non-Null pointer at an offset
|
|
* indicates a device exists.
|
|
* max_id = 1 + maximum id (hosts.h)
|
|
*/
|
|
hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
|
|
if (!hd->Targets) {
|
|
error = -ENOMEM;
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
|
|
|
|
/* Clear the TM flags
|
|
*/
|
|
hd->tmPending = 0;
|
|
hd->tmState = TM_STATE_NONE;
|
|
hd->resetPending = 0;
|
|
hd->abortSCpnt = NULL;
|
|
|
|
/* Clear the pointer used to store
|
|
* single-threaded commands, i.e., those
|
|
* issued during a bus scan, dv and
|
|
* configuration pages.
|
|
*/
|
|
hd->cmdPtr = NULL;
|
|
|
|
/* Initialize this SCSI Hosts' timers
|
|
* To use, set the timer expires field
|
|
* and add_timer
|
|
*/
|
|
init_timer(&hd->timer);
|
|
hd->timer.data = (unsigned long) hd;
|
|
hd->timer.function = mptscsih_timer_expired;
|
|
|
|
hd->mpt_pq_filter = mpt_pq_filter;
|
|
|
|
ddvprintk((MYIOC_s_INFO_FMT
|
|
"mpt_pq_filter %x\n",
|
|
ioc->name,
|
|
mpt_pq_filter));
|
|
|
|
init_waitqueue_head(&hd->scandv_waitq);
|
|
hd->scandv_wait_done = 0;
|
|
hd->last_queue_full = 0;
|
|
|
|
sh->transportt = mptfc_transport_template;
|
|
error = scsi_add_host (sh, &ioc->pcidev->dev);
|
|
if(error) {
|
|
dprintk((KERN_ERR MYNAM
|
|
"scsi_add_host failed\n"));
|
|
goto out_mptfc_probe;
|
|
}
|
|
|
|
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
|
|
mptfc_init_host_attr(ioc,ii);
|
|
mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
|
|
}
|
|
|
|
return 0;
|
|
|
|
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 = __devexit_p(mptfc_remove),
|
|
.shutdown = mptscsih_shutdown,
|
|
#ifdef CONFIG_PM
|
|
.suspend = mptscsih_suspend,
|
|
.resume = mptscsih_resume,
|
|
#endif
|
|
};
|
|
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/**
|
|
* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
|
|
* linux 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 parameter */
|
|
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);
|
|
mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
|
|
mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
|
|
|
|
if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
|
|
devtprintk((KERN_INFO MYNAM
|
|
": Registered for IOC event notifications\n"));
|
|
}
|
|
|
|
if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
|
|
dprintk((KERN_INFO MYNAM
|
|
": Registered for IOC reset notifications\n"));
|
|
}
|
|
|
|
error = pci_register_driver(&mptfc_driver);
|
|
if (error)
|
|
fc_release_transport(mptfc_transport_template);
|
|
|
|
return error;
|
|
}
|
|
|
|
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
|
|
/**
|
|
* mptfc_remove - Removed fc infrastructure for devices
|
|
* @pdev: Pointer to pci_dev structure
|
|
*
|
|
*/
|
|
static void __devexit
|
|
mptfc_remove(struct pci_dev *pdev)
|
|
{
|
|
MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
|
|
struct mptfc_rport_info *p, *n;
|
|
|
|
fc_remove_host(ioc->sh);
|
|
|
|
list_for_each_entry_safe(p, n, &ioc->fc_rports, list) {
|
|
list_del(&p->list);
|
|
kfree(p);
|
|
}
|
|
|
|
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);
|
|
dprintk((KERN_INFO MYNAM
|
|
": Deregistered for IOC reset notifications\n"));
|
|
|
|
mpt_event_deregister(mptfcDoneCtx);
|
|
dprintk((KERN_INFO MYNAM
|
|
": Deregistered for IOC event notifications\n"));
|
|
|
|
mpt_deregister(mptfcInternalCtx);
|
|
mpt_deregister(mptfcTaskCtx);
|
|
mpt_deregister(mptfcDoneCtx);
|
|
}
|
|
|
|
module_init(mptfc_init);
|
|
module_exit(mptfc_exit);
|