forked from Minki/linux
3df824aff9
This patch limits the max. number of SCSI commmand request to avoid command overflow. Signed-off-by: Ching Huang <ching2048@areca.com.tw> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
3270 lines
102 KiB
C
3270 lines
102 KiB
C
/*
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*******************************************************************************
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** O.S : Linux
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** FILE NAME : arcmsr_hba.c
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** BY : Nick Cheng
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** Description: SCSI RAID Device Driver for
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** ARECA RAID Host adapter
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*******************************************************************************
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** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
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**
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** Web site: www.areca.com.tw
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** E-mail: support@areca.com.tw
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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 version 2 as
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** published by the Free Software Foundation.
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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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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************
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** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
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** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
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*******************************************************************************
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*/
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#include <linux/module.h>
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#include <linux/reboot.h>
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#include <linux/spinlock.h>
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#include <linux/pci_ids.h>
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#include <linux/interrupt.h>
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#include <linux/moduleparam.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/timer.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <linux/aer.h>
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#include <asm/dma.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <scsi/scsi_host.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_tcq.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_transport.h>
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#include <scsi/scsicam.h>
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#include "arcmsr.h"
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MODULE_AUTHOR("Nick Cheng <support@areca.com.tw>");
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MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_VERSION(ARCMSR_DRIVER_VERSION);
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#define ARCMSR_SLEEPTIME 10
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#define ARCMSR_RETRYCOUNT 12
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wait_queue_head_t wait_q;
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static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
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struct scsi_cmnd *cmd);
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static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
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static int arcmsr_abort(struct scsi_cmnd *);
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static int arcmsr_bus_reset(struct scsi_cmnd *);
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static int arcmsr_bios_param(struct scsi_device *sdev,
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struct block_device *bdev, sector_t capacity, int *info);
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static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
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static int arcmsr_probe(struct pci_dev *pdev,
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const struct pci_device_id *id);
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static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state);
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static int arcmsr_resume(struct pci_dev *pdev);
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static void arcmsr_remove(struct pci_dev *pdev);
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static void arcmsr_shutdown(struct pci_dev *pdev);
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static void arcmsr_iop_init(struct AdapterControlBlock *acb);
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static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
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static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
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static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
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u32 intmask_org);
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static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
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static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
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static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
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static void arcmsr_request_device_map(unsigned long pacb);
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static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
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static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
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static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb);
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static void arcmsr_message_isr_bh_fn(struct work_struct *work);
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static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
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static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
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static void arcmsr_hbc_message_isr(struct AdapterControlBlock *pACB);
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static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
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static const char *arcmsr_info(struct Scsi_Host *);
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static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
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static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
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int queue_depth, int reason)
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{
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if (reason != SCSI_QDEPTH_DEFAULT)
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return -EOPNOTSUPP;
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if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
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queue_depth = ARCMSR_MAX_CMD_PERLUN;
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scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
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return queue_depth;
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}
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static struct scsi_host_template arcmsr_scsi_host_template = {
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.module = THIS_MODULE,
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.name = "ARCMSR ARECA SATA/SAS RAID Controller"
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ARCMSR_DRIVER_VERSION,
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.info = arcmsr_info,
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.queuecommand = arcmsr_queue_command,
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.eh_abort_handler = arcmsr_abort,
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.eh_bus_reset_handler = arcmsr_bus_reset,
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.bios_param = arcmsr_bios_param,
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.change_queue_depth = arcmsr_adjust_disk_queue_depth,
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.can_queue = ARCMSR_MAX_OUTSTANDING_CMD,
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.this_id = ARCMSR_SCSI_INITIATOR_ID,
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.sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
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.max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
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.cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
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.use_clustering = ENABLE_CLUSTERING,
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.shost_attrs = arcmsr_host_attrs,
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.no_write_same = 1,
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};
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static struct pci_device_id arcmsr_device_id_table[] = {
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
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{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880)},
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{0, 0}, /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
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static struct pci_driver arcmsr_pci_driver = {
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.name = "arcmsr",
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.id_table = arcmsr_device_id_table,
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.probe = arcmsr_probe,
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.remove = arcmsr_remove,
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.suspend = arcmsr_suspend,
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.resume = arcmsr_resume,
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.shutdown = arcmsr_shutdown,
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};
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/*
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****************************************************************************
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****************************************************************************
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*/
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static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
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{
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switch (acb->adapter_type) {
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case ACB_ADAPTER_TYPE_A:
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case ACB_ADAPTER_TYPE_C:
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break;
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case ACB_ADAPTER_TYPE_B:{
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dma_free_coherent(&acb->pdev->dev,
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sizeof(struct MessageUnit_B),
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acb->pmuB, acb->dma_coherent_handle_hbb_mu);
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}
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}
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}
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static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
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{
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struct pci_dev *pdev = acb->pdev;
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switch (acb->adapter_type){
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case ACB_ADAPTER_TYPE_A:{
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acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
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if (!acb->pmuA) {
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printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
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return false;
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}
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break;
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}
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case ACB_ADAPTER_TYPE_B:{
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void __iomem *mem_base0, *mem_base1;
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mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
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if (!mem_base0) {
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printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
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return false;
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}
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mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
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if (!mem_base1) {
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iounmap(mem_base0);
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printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
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return false;
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}
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acb->mem_base0 = mem_base0;
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acb->mem_base1 = mem_base1;
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break;
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}
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case ACB_ADAPTER_TYPE_C:{
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acb->pmuC = ioremap_nocache(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
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if (!acb->pmuC) {
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printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
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return false;
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}
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if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
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writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
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return true;
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}
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break;
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}
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}
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return true;
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}
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static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
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{
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switch (acb->adapter_type) {
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case ACB_ADAPTER_TYPE_A:{
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iounmap(acb->pmuA);
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}
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break;
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case ACB_ADAPTER_TYPE_B:{
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iounmap(acb->mem_base0);
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iounmap(acb->mem_base1);
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}
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break;
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case ACB_ADAPTER_TYPE_C:{
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iounmap(acb->pmuC);
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}
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}
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}
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static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
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{
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irqreturn_t handle_state;
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struct AdapterControlBlock *acb = dev_id;
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handle_state = arcmsr_interrupt(acb);
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return handle_state;
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}
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static int arcmsr_bios_param(struct scsi_device *sdev,
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struct block_device *bdev, sector_t capacity, int *geom)
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{
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int ret, heads, sectors, cylinders, total_capacity;
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unsigned char *buffer;/* return copy of block device's partition table */
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buffer = scsi_bios_ptable(bdev);
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if (buffer) {
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ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
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kfree(buffer);
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if (ret != -1)
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return ret;
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}
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total_capacity = capacity;
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heads = 64;
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sectors = 32;
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cylinders = total_capacity / (heads * sectors);
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if (cylinders > 1024) {
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heads = 255;
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sectors = 63;
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cylinders = total_capacity / (heads * sectors);
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}
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geom[0] = heads;
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geom[1] = sectors;
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geom[2] = cylinders;
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return 0;
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}
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static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
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{
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struct pci_dev *pdev = acb->pdev;
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u16 dev_id;
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pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
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acb->dev_id = dev_id;
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switch (dev_id) {
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case 0x1880: {
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acb->adapter_type = ACB_ADAPTER_TYPE_C;
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}
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break;
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case 0x1201: {
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acb->adapter_type = ACB_ADAPTER_TYPE_B;
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}
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break;
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default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
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}
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}
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static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
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{
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struct MessageUnit_A __iomem *reg = acb->pmuA;
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int i;
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for (i = 0; i < 2000; i++) {
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if (readl(®->outbound_intstatus) &
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ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
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writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
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®->outbound_intstatus);
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return true;
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}
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msleep(10);
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} /* max 20 seconds */
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return false;
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}
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static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
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{
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struct MessageUnit_B *reg = acb->pmuB;
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int i;
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for (i = 0; i < 2000; i++) {
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if (readl(reg->iop2drv_doorbell)
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& ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
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writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
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reg->iop2drv_doorbell);
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writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
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reg->drv2iop_doorbell);
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return true;
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}
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msleep(10);
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} /* max 20 seconds */
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return false;
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}
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static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
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{
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struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
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int i;
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for (i = 0; i < 2000; i++) {
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if (readl(&phbcmu->outbound_doorbell)
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& ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
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writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
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&phbcmu->outbound_doorbell_clear); /*clear interrupt*/
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return true;
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}
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msleep(10);
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} /* max 20 seconds */
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return false;
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}
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static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
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{
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struct MessageUnit_A __iomem *reg = acb->pmuA;
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int retry_count = 30;
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writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
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do {
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if (arcmsr_hba_wait_msgint_ready(acb))
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break;
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else {
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retry_count--;
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printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
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timeout, retry count down = %d \n", acb->host->host_no, retry_count);
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}
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} while (retry_count != 0);
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}
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static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
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{
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struct MessageUnit_B *reg = acb->pmuB;
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int retry_count = 30;
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writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
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do {
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if (arcmsr_hbb_wait_msgint_ready(acb))
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break;
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else {
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retry_count--;
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printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
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timeout,retry count down = %d \n", acb->host->host_no, retry_count);
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}
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} while (retry_count != 0);
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}
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static void arcmsr_flush_hbc_cache(struct AdapterControlBlock *pACB)
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{
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struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
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int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
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writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
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writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
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do {
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if (arcmsr_hbc_wait_msgint_ready(pACB)) {
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break;
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} else {
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retry_count--;
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printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
|
|
timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
|
|
}
|
|
} while (retry_count != 0);
|
|
return;
|
|
}
|
|
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
arcmsr_flush_hba_cache(acb);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
arcmsr_flush_hbb_cache(acb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
arcmsr_flush_hbc_cache(acb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
|
|
{
|
|
struct pci_dev *pdev = acb->pdev;
|
|
void *dma_coherent;
|
|
dma_addr_t dma_coherent_handle;
|
|
struct CommandControlBlock *ccb_tmp;
|
|
int i = 0, j = 0;
|
|
dma_addr_t cdb_phyaddr;
|
|
unsigned long roundup_ccbsize;
|
|
unsigned long max_xfer_len;
|
|
unsigned long max_sg_entrys;
|
|
uint32_t firm_config_version;
|
|
|
|
for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
|
|
for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
|
|
acb->devstate[i][j] = ARECA_RAID_GONE;
|
|
|
|
max_xfer_len = ARCMSR_MAX_XFER_LEN;
|
|
max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
|
|
firm_config_version = acb->firm_cfg_version;
|
|
if((firm_config_version & 0xFF) >= 3){
|
|
max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
|
|
max_sg_entrys = (max_xfer_len/4096);
|
|
}
|
|
acb->host->max_sectors = max_xfer_len/512;
|
|
acb->host->sg_tablesize = max_sg_entrys;
|
|
roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
|
|
acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
|
|
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
|
|
if(!dma_coherent){
|
|
printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
|
|
return -ENOMEM;
|
|
}
|
|
acb->dma_coherent = dma_coherent;
|
|
acb->dma_coherent_handle = dma_coherent_handle;
|
|
memset(dma_coherent, 0, acb->uncache_size);
|
|
ccb_tmp = dma_coherent;
|
|
acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
|
|
for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
|
|
cdb_phyaddr = dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
|
|
ccb_tmp->cdb_phyaddr_pattern = ((acb->adapter_type == ACB_ADAPTER_TYPE_C) ? cdb_phyaddr : (cdb_phyaddr >> 5));
|
|
acb->pccb_pool[i] = ccb_tmp;
|
|
ccb_tmp->acb = acb;
|
|
INIT_LIST_HEAD(&ccb_tmp->list);
|
|
list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
|
|
ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
|
|
dma_coherent_handle = dma_coherent_handle + roundup_ccbsize;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void arcmsr_message_isr_bh_fn(struct work_struct *work)
|
|
{
|
|
struct AdapterControlBlock *acb = container_of(work,struct AdapterControlBlock, arcmsr_do_message_isr_bh);
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
char *acb_dev_map = (char *)acb->device_map;
|
|
uint32_t __iomem *signature = (uint32_t __iomem*) (®->message_rwbuffer[0]);
|
|
char __iomem *devicemap = (char __iomem*) (®->message_rwbuffer[21]);
|
|
int target, lun;
|
|
struct scsi_device *psdev;
|
|
char diff;
|
|
|
|
atomic_inc(&acb->rq_map_token);
|
|
if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
|
|
for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
|
|
diff = (*acb_dev_map)^readb(devicemap);
|
|
if (diff != 0) {
|
|
char temp;
|
|
*acb_dev_map = readb(devicemap);
|
|
temp =*acb_dev_map;
|
|
for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
|
|
if((temp & 0x01)==1 && (diff & 0x01) == 1) {
|
|
scsi_add_device(acb->host, 0, target, lun);
|
|
}else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
|
|
psdev = scsi_device_lookup(acb->host, 0, target, lun);
|
|
if (psdev != NULL ) {
|
|
scsi_remove_device(psdev);
|
|
scsi_device_put(psdev);
|
|
}
|
|
}
|
|
temp >>= 1;
|
|
diff >>= 1;
|
|
}
|
|
}
|
|
devicemap++;
|
|
acb_dev_map++;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
char *acb_dev_map = (char *)acb->device_map;
|
|
uint32_t __iomem *signature = (uint32_t __iomem*)(®->message_rwbuffer[0]);
|
|
char __iomem *devicemap = (char __iomem*)(®->message_rwbuffer[21]);
|
|
int target, lun;
|
|
struct scsi_device *psdev;
|
|
char diff;
|
|
|
|
atomic_inc(&acb->rq_map_token);
|
|
if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
|
|
for(target = 0; target < ARCMSR_MAX_TARGETID -1; target++) {
|
|
diff = (*acb_dev_map)^readb(devicemap);
|
|
if (diff != 0) {
|
|
char temp;
|
|
*acb_dev_map = readb(devicemap);
|
|
temp =*acb_dev_map;
|
|
for(lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
|
|
if((temp & 0x01)==1 && (diff & 0x01) == 1) {
|
|
scsi_add_device(acb->host, 0, target, lun);
|
|
}else if((temp & 0x01) == 0 && (diff & 0x01) == 1) {
|
|
psdev = scsi_device_lookup(acb->host, 0, target, lun);
|
|
if (psdev != NULL ) {
|
|
scsi_remove_device(psdev);
|
|
scsi_device_put(psdev);
|
|
}
|
|
}
|
|
temp >>= 1;
|
|
diff >>= 1;
|
|
}
|
|
}
|
|
devicemap++;
|
|
acb_dev_map++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = acb->pmuC;
|
|
char *acb_dev_map = (char *)acb->device_map;
|
|
uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
|
|
char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
|
|
int target, lun;
|
|
struct scsi_device *psdev;
|
|
char diff;
|
|
|
|
atomic_inc(&acb->rq_map_token);
|
|
if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
|
|
for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
|
|
diff = (*acb_dev_map)^readb(devicemap);
|
|
if (diff != 0) {
|
|
char temp;
|
|
*acb_dev_map = readb(devicemap);
|
|
temp = *acb_dev_map;
|
|
for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
|
|
if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
|
|
scsi_add_device(acb->host, 0, target, lun);
|
|
} else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
|
|
psdev = scsi_device_lookup(acb->host, 0, target, lun);
|
|
if (psdev != NULL) {
|
|
scsi_remove_device(psdev);
|
|
scsi_device_put(psdev);
|
|
}
|
|
}
|
|
temp >>= 1;
|
|
diff >>= 1;
|
|
}
|
|
}
|
|
devicemap++;
|
|
acb_dev_map++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
arcmsr_request_irq(struct pci_dev *pdev, struct AdapterControlBlock *acb)
|
|
{
|
|
int i, j, r;
|
|
struct msix_entry entries[ARCMST_NUM_MSIX_VECTORS];
|
|
|
|
for (i = 0; i < ARCMST_NUM_MSIX_VECTORS; i++)
|
|
entries[i].entry = i;
|
|
r = pci_enable_msix_range(pdev, entries, 1, ARCMST_NUM_MSIX_VECTORS);
|
|
if (r < 0)
|
|
goto msi_int;
|
|
acb->msix_vector_count = r;
|
|
for (i = 0; i < r; i++) {
|
|
if (request_irq(entries[i].vector,
|
|
arcmsr_do_interrupt, 0, "arcmsr", acb)) {
|
|
pr_warn("arcmsr%d: request_irq =%d failed!\n",
|
|
acb->host->host_no, entries[i].vector);
|
|
for (j = 0 ; j < i ; j++)
|
|
free_irq(entries[j].vector, acb);
|
|
pci_disable_msix(pdev);
|
|
goto msi_int;
|
|
}
|
|
acb->entries[i] = entries[i];
|
|
}
|
|
acb->acb_flags |= ACB_F_MSIX_ENABLED;
|
|
pr_info("arcmsr%d: msi-x enabled\n", acb->host->host_no);
|
|
return SUCCESS;
|
|
msi_int:
|
|
if (pci_enable_msi_exact(pdev, 1) < 0)
|
|
goto legacy_int;
|
|
if (request_irq(pdev->irq, arcmsr_do_interrupt,
|
|
IRQF_SHARED, "arcmsr", acb)) {
|
|
pr_warn("arcmsr%d: request_irq =%d failed!\n",
|
|
acb->host->host_no, pdev->irq);
|
|
pci_disable_msi(pdev);
|
|
goto legacy_int;
|
|
}
|
|
acb->acb_flags |= ACB_F_MSI_ENABLED;
|
|
pr_info("arcmsr%d: msi enabled\n", acb->host->host_no);
|
|
return SUCCESS;
|
|
legacy_int:
|
|
if (request_irq(pdev->irq, arcmsr_do_interrupt,
|
|
IRQF_SHARED, "arcmsr", acb)) {
|
|
pr_warn("arcmsr%d: request_irq = %d failed!\n",
|
|
acb->host->host_no, pdev->irq);
|
|
return FAILED;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct Scsi_Host *host;
|
|
struct AdapterControlBlock *acb;
|
|
uint8_t bus,dev_fun;
|
|
int error;
|
|
error = pci_enable_device(pdev);
|
|
if(error){
|
|
return -ENODEV;
|
|
}
|
|
host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
|
|
if(!host){
|
|
goto pci_disable_dev;
|
|
}
|
|
error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if(error){
|
|
error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if(error){
|
|
printk(KERN_WARNING
|
|
"scsi%d: No suitable DMA mask available\n",
|
|
host->host_no);
|
|
goto scsi_host_release;
|
|
}
|
|
}
|
|
init_waitqueue_head(&wait_q);
|
|
bus = pdev->bus->number;
|
|
dev_fun = pdev->devfn;
|
|
acb = (struct AdapterControlBlock *) host->hostdata;
|
|
memset(acb,0,sizeof(struct AdapterControlBlock));
|
|
acb->pdev = pdev;
|
|
acb->host = host;
|
|
host->max_lun = ARCMSR_MAX_TARGETLUN;
|
|
host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
|
|
host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
|
|
host->can_queue = ARCMSR_MAX_OUTSTANDING_CMD;
|
|
host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
|
|
host->this_id = ARCMSR_SCSI_INITIATOR_ID;
|
|
host->unique_id = (bus << 8) | dev_fun;
|
|
pci_set_drvdata(pdev, host);
|
|
pci_set_master(pdev);
|
|
error = pci_request_regions(pdev, "arcmsr");
|
|
if(error){
|
|
goto scsi_host_release;
|
|
}
|
|
spin_lock_init(&acb->eh_lock);
|
|
spin_lock_init(&acb->ccblist_lock);
|
|
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
|
|
ACB_F_MESSAGE_RQBUFFER_CLEARED |
|
|
ACB_F_MESSAGE_WQBUFFER_READED);
|
|
acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
|
|
INIT_LIST_HEAD(&acb->ccb_free_list);
|
|
arcmsr_define_adapter_type(acb);
|
|
error = arcmsr_remap_pciregion(acb);
|
|
if(!error){
|
|
goto pci_release_regs;
|
|
}
|
|
error = arcmsr_get_firmware_spec(acb);
|
|
if(!error){
|
|
goto unmap_pci_region;
|
|
}
|
|
error = arcmsr_alloc_ccb_pool(acb);
|
|
if(error){
|
|
goto free_hbb_mu;
|
|
}
|
|
error = scsi_add_host(host, &pdev->dev);
|
|
if(error){
|
|
goto RAID_controller_stop;
|
|
}
|
|
if (arcmsr_request_irq(pdev, acb) == FAILED)
|
|
goto scsi_host_remove;
|
|
arcmsr_iop_init(acb);
|
|
scsi_scan_host(host);
|
|
INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
init_timer(&acb->eternal_timer);
|
|
acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
|
|
acb->eternal_timer.data = (unsigned long) acb;
|
|
acb->eternal_timer.function = &arcmsr_request_device_map;
|
|
add_timer(&acb->eternal_timer);
|
|
if(arcmsr_alloc_sysfs_attr(acb))
|
|
goto out_free_sysfs;
|
|
return 0;
|
|
out_free_sysfs:
|
|
scsi_host_remove:
|
|
scsi_remove_host(host);
|
|
RAID_controller_stop:
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
arcmsr_free_ccb_pool(acb);
|
|
free_hbb_mu:
|
|
arcmsr_free_hbb_mu(acb);
|
|
unmap_pci_region:
|
|
arcmsr_unmap_pciregion(acb);
|
|
pci_release_regs:
|
|
pci_release_regions(pdev);
|
|
scsi_host_release:
|
|
scsi_host_put(host);
|
|
pci_disable_dev:
|
|
pci_disable_device(pdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
static void arcmsr_free_irq(struct pci_dev *pdev,
|
|
struct AdapterControlBlock *acb)
|
|
{
|
|
int i;
|
|
|
|
if (acb->acb_flags & ACB_F_MSI_ENABLED) {
|
|
free_irq(pdev->irq, acb);
|
|
pci_disable_msi(pdev);
|
|
} else if (acb->acb_flags & ACB_F_MSIX_ENABLED) {
|
|
for (i = 0; i < acb->msix_vector_count; i++)
|
|
free_irq(acb->entries[i].vector, acb);
|
|
pci_disable_msix(pdev);
|
|
} else
|
|
free_irq(pdev->irq, acb);
|
|
}
|
|
|
|
static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
uint32_t intmask_org;
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *)host->hostdata;
|
|
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_free_irq(pdev, acb);
|
|
del_timer_sync(&acb->eternal_timer);
|
|
flush_work(&acb->arcmsr_do_message_isr_bh);
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
pci_set_drvdata(pdev, host);
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
return 0;
|
|
}
|
|
|
|
static int arcmsr_resume(struct pci_dev *pdev)
|
|
{
|
|
int error;
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *)host->hostdata;
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_enable_wake(pdev, PCI_D0, 0);
|
|
pci_restore_state(pdev);
|
|
if (pci_enable_device(pdev)) {
|
|
pr_warn("%s: pci_enable_device error\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (error) {
|
|
error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (error) {
|
|
pr_warn("scsi%d: No suitable DMA mask available\n",
|
|
host->host_no);
|
|
goto controller_unregister;
|
|
}
|
|
}
|
|
pci_set_master(pdev);
|
|
if (arcmsr_request_irq(pdev, acb) == FAILED)
|
|
goto controller_stop;
|
|
arcmsr_iop_init(acb);
|
|
INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
init_timer(&acb->eternal_timer);
|
|
acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
|
|
acb->eternal_timer.data = (unsigned long) acb;
|
|
acb->eternal_timer.function = &arcmsr_request_device_map;
|
|
add_timer(&acb->eternal_timer);
|
|
return 0;
|
|
controller_stop:
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
controller_unregister:
|
|
scsi_remove_host(host);
|
|
arcmsr_free_ccb_pool(acb);
|
|
arcmsr_unmap_pciregion(acb);
|
|
pci_release_regions(pdev);
|
|
scsi_host_put(host);
|
|
pci_disable_device(pdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
|
|
if (!arcmsr_hba_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'abort all outstanding command' timeout \n"
|
|
, acb->host->host_no);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
|
|
writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'abort all outstanding command' timeout \n"
|
|
, acb->host->host_no);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
static uint8_t arcmsr_abort_hbc_allcmd(struct AdapterControlBlock *pACB)
|
|
{
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
|
|
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
|
|
if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'abort all outstanding command' timeout \n"
|
|
, pACB->host->host_no);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
|
|
{
|
|
uint8_t rtnval = 0;
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
rtnval = arcmsr_abort_hba_allcmd(acb);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
rtnval = arcmsr_abort_hbb_allcmd(acb);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
rtnval = arcmsr_abort_hbc_allcmd(acb);
|
|
}
|
|
}
|
|
return rtnval;
|
|
}
|
|
|
|
static bool arcmsr_hbb_enable_driver_mode(struct AdapterControlBlock *pacb)
|
|
{
|
|
struct MessageUnit_B *reg = pacb->pmuB;
|
|
writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(pacb)) {
|
|
printk(KERN_ERR "arcmsr%d: can't set driver mode. \n", pacb->host->host_no);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
|
|
{
|
|
struct scsi_cmnd *pcmd = ccb->pcmd;
|
|
|
|
scsi_dma_unmap(pcmd);
|
|
}
|
|
|
|
static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
|
|
{
|
|
struct AdapterControlBlock *acb = ccb->acb;
|
|
struct scsi_cmnd *pcmd = ccb->pcmd;
|
|
unsigned long flags;
|
|
atomic_dec(&acb->ccboutstandingcount);
|
|
arcmsr_pci_unmap_dma(ccb);
|
|
ccb->startdone = ARCMSR_CCB_DONE;
|
|
spin_lock_irqsave(&acb->ccblist_lock, flags);
|
|
list_add_tail(&ccb->list, &acb->ccb_free_list);
|
|
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
|
|
pcmd->scsi_done(pcmd);
|
|
}
|
|
|
|
static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
|
|
{
|
|
|
|
struct scsi_cmnd *pcmd = ccb->pcmd;
|
|
struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
|
|
pcmd->result = DID_OK << 16;
|
|
if (sensebuffer) {
|
|
int sense_data_length =
|
|
sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
|
|
? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
|
|
memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
|
|
memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
|
|
sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
|
|
sensebuffer->Valid = 1;
|
|
}
|
|
}
|
|
|
|
static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
|
|
{
|
|
u32 orig_mask = 0;
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A : {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
orig_mask = readl(®->outbound_intmask);
|
|
writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
|
|
®->outbound_intmask);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_B : {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
orig_mask = readl(reg->iop2drv_doorbell_mask);
|
|
writel(0, reg->iop2drv_doorbell_mask);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C:{
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
/* disable all outbound interrupt */
|
|
orig_mask = readl(®->host_int_mask); /* disable outbound message0 int */
|
|
writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
|
|
}
|
|
break;
|
|
}
|
|
return orig_mask;
|
|
}
|
|
|
|
static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *ccb, bool error)
|
|
{
|
|
uint8_t id, lun;
|
|
id = ccb->pcmd->device->id;
|
|
lun = ccb->pcmd->device->lun;
|
|
if (!error) {
|
|
if (acb->devstate[id][lun] == ARECA_RAID_GONE)
|
|
acb->devstate[id][lun] = ARECA_RAID_GOOD;
|
|
ccb->pcmd->result = DID_OK << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
}else{
|
|
switch (ccb->arcmsr_cdb.DeviceStatus) {
|
|
case ARCMSR_DEV_SELECT_TIMEOUT: {
|
|
acb->devstate[id][lun] = ARECA_RAID_GONE;
|
|
ccb->pcmd->result = DID_NO_CONNECT << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_DEV_ABORTED:
|
|
|
|
case ARCMSR_DEV_INIT_FAIL: {
|
|
acb->devstate[id][lun] = ARECA_RAID_GONE;
|
|
ccb->pcmd->result = DID_BAD_TARGET << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_DEV_CHECK_CONDITION: {
|
|
acb->devstate[id][lun] = ARECA_RAID_GOOD;
|
|
arcmsr_report_sense_info(ccb);
|
|
arcmsr_ccb_complete(ccb);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: scsi id = %d lun = %d isr get command error done, \
|
|
but got unknown DeviceStatus = 0x%x \n"
|
|
, acb->host->host_no
|
|
, id
|
|
, lun
|
|
, ccb->arcmsr_cdb.DeviceStatus);
|
|
acb->devstate[id][lun] = ARECA_RAID_GONE;
|
|
ccb->pcmd->result = DID_NO_CONNECT << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
|
|
{
|
|
int id, lun;
|
|
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
|
|
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
|
|
struct scsi_cmnd *abortcmd = pCCB->pcmd;
|
|
if (abortcmd) {
|
|
id = abortcmd->device->id;
|
|
lun = abortcmd->device->lun;
|
|
abortcmd->result |= DID_ABORT << 16;
|
|
arcmsr_ccb_complete(pCCB);
|
|
printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
|
|
acb->host->host_no, pCCB);
|
|
}
|
|
return;
|
|
}
|
|
printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
|
|
done acb = '0x%p'"
|
|
"ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
|
|
" ccboutstandingcount = %d \n"
|
|
, acb->host->host_no
|
|
, acb
|
|
, pCCB
|
|
, pCCB->acb
|
|
, pCCB->startdone
|
|
, atomic_read(&acb->ccboutstandingcount));
|
|
return;
|
|
}
|
|
arcmsr_report_ccb_state(acb, pCCB, error);
|
|
}
|
|
|
|
static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
|
|
{
|
|
int i = 0;
|
|
uint32_t flag_ccb;
|
|
struct ARCMSR_CDB *pARCMSR_CDB;
|
|
bool error;
|
|
struct CommandControlBlock *pCCB;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
uint32_t outbound_intstatus;
|
|
outbound_intstatus = readl(®->outbound_intstatus) &
|
|
acb->outbound_int_enable;
|
|
/*clear and abort all outbound posted Q*/
|
|
writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
|
|
while(((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF)
|
|
&& (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
|
|
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_drain_donequeue(acb, pCCB, error);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
/*clear all outbound posted Q*/
|
|
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
|
|
for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
|
|
if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) {
|
|
writel(0, ®->done_qbuffer[i]);
|
|
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_drain_donequeue(acb, pCCB, error);
|
|
}
|
|
reg->post_qbuffer[i] = 0;
|
|
}
|
|
reg->doneq_index = 0;
|
|
reg->postq_index = 0;
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = acb->pmuC;
|
|
struct ARCMSR_CDB *pARCMSR_CDB;
|
|
uint32_t flag_ccb, ccb_cdb_phy;
|
|
bool error;
|
|
struct CommandControlBlock *pCCB;
|
|
while ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
|
|
/*need to do*/
|
|
flag_ccb = readl(®->outbound_queueport_low);
|
|
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
|
|
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+ccb_cdb_phy);/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
|
|
arcmsr_drain_donequeue(acb, pCCB, error);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_remove(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *) host->hostdata;
|
|
int poll_count = 0;
|
|
arcmsr_free_sysfs_attr(acb);
|
|
scsi_remove_host(host);
|
|
flush_work(&acb->arcmsr_do_message_isr_bh);
|
|
del_timer_sync(&acb->eternal_timer);
|
|
arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
|
|
acb->acb_flags &= ~ACB_F_IOP_INITED;
|
|
|
|
for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++){
|
|
if (!atomic_read(&acb->ccboutstandingcount))
|
|
break;
|
|
arcmsr_interrupt(acb);/* FIXME: need spinlock */
|
|
msleep(25);
|
|
}
|
|
|
|
if (atomic_read(&acb->ccboutstandingcount)) {
|
|
int i;
|
|
|
|
arcmsr_abort_allcmd(acb);
|
|
arcmsr_done4abort_postqueue(acb);
|
|
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
|
|
struct CommandControlBlock *ccb = acb->pccb_pool[i];
|
|
if (ccb->startdone == ARCMSR_CCB_START) {
|
|
ccb->startdone = ARCMSR_CCB_ABORTED;
|
|
ccb->pcmd->result = DID_ABORT << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
}
|
|
}
|
|
}
|
|
arcmsr_free_irq(pdev, acb);
|
|
arcmsr_free_ccb_pool(acb);
|
|
arcmsr_free_hbb_mu(acb);
|
|
arcmsr_unmap_pciregion(acb);
|
|
pci_release_regions(pdev);
|
|
scsi_host_put(host);
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
static void arcmsr_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *)host->hostdata;
|
|
del_timer_sync(&acb->eternal_timer);
|
|
arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_free_irq(pdev, acb);
|
|
flush_work(&acb->arcmsr_do_message_isr_bh);
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
}
|
|
|
|
static int arcmsr_module_init(void)
|
|
{
|
|
int error = 0;
|
|
error = pci_register_driver(&arcmsr_pci_driver);
|
|
return error;
|
|
}
|
|
|
|
static void arcmsr_module_exit(void)
|
|
{
|
|
pci_unregister_driver(&arcmsr_pci_driver);
|
|
}
|
|
module_init(arcmsr_module_init);
|
|
module_exit(arcmsr_module_exit);
|
|
|
|
static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
|
|
u32 intmask_org)
|
|
{
|
|
u32 mask;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
|
|
ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
|
|
ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
|
|
writel(mask, ®->outbound_intmask);
|
|
acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
|
|
ARCMSR_IOP2DRV_DATA_READ_OK |
|
|
ARCMSR_IOP2DRV_CDB_DONE |
|
|
ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
|
|
writel(mask, reg->iop2drv_doorbell_mask);
|
|
acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = acb->pmuC;
|
|
mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
|
|
writel(intmask_org & mask, ®->host_int_mask);
|
|
acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
|
|
{
|
|
struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
|
|
int8_t *psge = (int8_t *)&arcmsr_cdb->u;
|
|
__le32 address_lo, address_hi;
|
|
int arccdbsize = 0x30;
|
|
__le32 length = 0;
|
|
int i;
|
|
struct scatterlist *sg;
|
|
int nseg;
|
|
ccb->pcmd = pcmd;
|
|
memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
|
|
arcmsr_cdb->TargetID = pcmd->device->id;
|
|
arcmsr_cdb->LUN = pcmd->device->lun;
|
|
arcmsr_cdb->Function = 1;
|
|
arcmsr_cdb->Context = 0;
|
|
memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
|
|
|
|
nseg = scsi_dma_map(pcmd);
|
|
if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
|
|
return FAILED;
|
|
scsi_for_each_sg(pcmd, sg, nseg, i) {
|
|
/* Get the physical address of the current data pointer */
|
|
length = cpu_to_le32(sg_dma_len(sg));
|
|
address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
|
|
address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
|
|
if (address_hi == 0) {
|
|
struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
|
|
|
|
pdma_sg->address = address_lo;
|
|
pdma_sg->length = length;
|
|
psge += sizeof (struct SG32ENTRY);
|
|
arccdbsize += sizeof (struct SG32ENTRY);
|
|
} else {
|
|
struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
|
|
|
|
pdma_sg->addresshigh = address_hi;
|
|
pdma_sg->address = address_lo;
|
|
pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
|
|
psge += sizeof (struct SG64ENTRY);
|
|
arccdbsize += sizeof (struct SG64ENTRY);
|
|
}
|
|
}
|
|
arcmsr_cdb->sgcount = (uint8_t)nseg;
|
|
arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
|
|
arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
|
|
if ( arccdbsize > 256)
|
|
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
|
|
if (pcmd->sc_data_direction == DMA_TO_DEVICE)
|
|
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
|
|
ccb->arc_cdb_size = arccdbsize;
|
|
return SUCCESS;
|
|
}
|
|
|
|
static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
|
|
{
|
|
uint32_t cdb_phyaddr_pattern = ccb->cdb_phyaddr_pattern;
|
|
struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
|
|
atomic_inc(&acb->ccboutstandingcount);
|
|
ccb->startdone = ARCMSR_CCB_START;
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
|
|
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
|
|
writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
|
|
®->inbound_queueport);
|
|
else {
|
|
writel(cdb_phyaddr_pattern, ®->inbound_queueport);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
uint32_t ending_index, index = reg->postq_index;
|
|
|
|
ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
|
|
writel(0, ®->post_qbuffer[ending_index]);
|
|
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
|
|
writel(cdb_phyaddr_pattern | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
|
|
®->post_qbuffer[index]);
|
|
} else {
|
|
writel(cdb_phyaddr_pattern, ®->post_qbuffer[index]);
|
|
}
|
|
index++;
|
|
index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
|
|
reg->postq_index = index;
|
|
writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
|
|
uint32_t ccb_post_stamp, arc_cdb_size;
|
|
|
|
arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
|
|
ccb_post_stamp = (cdb_phyaddr_pattern | ((arc_cdb_size - 1) >> 6) | 1);
|
|
if (acb->cdb_phyaddr_hi32) {
|
|
writel(acb->cdb_phyaddr_hi32, &phbcmu->inbound_queueport_high);
|
|
writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
|
|
} else {
|
|
writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
|
|
if (!arcmsr_hba_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
|
|
, acb->host->host_no);
|
|
}
|
|
}
|
|
|
|
static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
|
|
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
|
|
, acb->host->host_no);
|
|
}
|
|
}
|
|
|
|
static void arcmsr_stop_hbc_bgrb(struct AdapterControlBlock *pACB)
|
|
{
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
|
|
pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
|
|
if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: wait 'stop adapter background rebulid' timeout \n"
|
|
, pACB->host->host_no);
|
|
}
|
|
return;
|
|
}
|
|
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
arcmsr_stop_hba_bgrb(acb);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
arcmsr_stop_hbb_bgrb(acb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
arcmsr_stop_hbc_bgrb(acb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
|
|
{
|
|
dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
|
|
}
|
|
|
|
void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C __iomem *reg = acb->pmuC;
|
|
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
/*
|
|
** push inbound doorbell tell iop, driver data write ok
|
|
** and wait reply on next hwinterrupt for next Qbuffer post
|
|
*/
|
|
writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
/*
|
|
** push inbound doorbell tell iop, driver data write ok
|
|
** and wait reply on next hwinterrupt for next Qbuffer post
|
|
*/
|
|
writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C __iomem *reg = acb->pmuC;
|
|
/*
|
|
** push inbound doorbell tell iop, driver data write ok
|
|
** and wait reply on next hwinterrupt for next Qbuffer post
|
|
*/
|
|
writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, ®->inbound_doorbell);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
|
|
{
|
|
struct QBUFFER __iomem *qbuffer = NULL;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
|
|
qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
|
|
}
|
|
}
|
|
return qbuffer;
|
|
}
|
|
|
|
static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
|
|
{
|
|
struct QBUFFER __iomem *pqbuffer = NULL;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer;
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
|
|
}
|
|
|
|
}
|
|
return pqbuffer;
|
|
}
|
|
|
|
static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
|
|
{
|
|
struct QBUFFER __iomem *prbuffer;
|
|
struct QBUFFER *pQbuffer;
|
|
uint8_t __iomem *iop_data;
|
|
int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
|
|
rqbuf_lastindex = acb->rqbuf_lastindex;
|
|
rqbuf_firstindex = acb->rqbuf_firstindex;
|
|
prbuffer = arcmsr_get_iop_rqbuffer(acb);
|
|
iop_data = (uint8_t __iomem *)prbuffer->data;
|
|
iop_len = prbuffer->data_len;
|
|
my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) & (ARCMSR_MAX_QBUFFER - 1);
|
|
|
|
if (my_empty_len >= iop_len)
|
|
{
|
|
while (iop_len > 0) {
|
|
pQbuffer = (struct QBUFFER *)&acb->rqbuffer[rqbuf_lastindex];
|
|
memcpy(pQbuffer, iop_data, 1);
|
|
rqbuf_lastindex++;
|
|
rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
|
|
iop_data++;
|
|
iop_len--;
|
|
}
|
|
acb->rqbuf_lastindex = rqbuf_lastindex;
|
|
arcmsr_iop_message_read(acb);
|
|
}
|
|
|
|
else {
|
|
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
|
|
}
|
|
}
|
|
|
|
static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
|
|
{
|
|
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
|
|
if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) {
|
|
uint8_t *pQbuffer;
|
|
struct QBUFFER __iomem *pwbuffer;
|
|
uint8_t __iomem *iop_data;
|
|
int32_t allxfer_len = 0;
|
|
|
|
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
|
|
pwbuffer = arcmsr_get_iop_wqbuffer(acb);
|
|
iop_data = (uint8_t __iomem *)pwbuffer->data;
|
|
|
|
while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) && \
|
|
(allxfer_len < 124)) {
|
|
pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex];
|
|
memcpy(iop_data, pQbuffer, 1);
|
|
acb->wqbuf_firstindex++;
|
|
acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
|
|
iop_data++;
|
|
allxfer_len++;
|
|
}
|
|
pwbuffer->data_len = allxfer_len;
|
|
|
|
arcmsr_iop_message_wrote(acb);
|
|
}
|
|
|
|
if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) {
|
|
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
|
|
}
|
|
}
|
|
|
|
static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t outbound_doorbell;
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
do {
|
|
writel(outbound_doorbell, ®->outbound_doorbell);
|
|
if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK)
|
|
arcmsr_iop2drv_data_wrote_handle(acb);
|
|
if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK)
|
|
arcmsr_iop2drv_data_read_handle(acb);
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
} while (outbound_doorbell & (ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK
|
|
| ARCMSR_OUTBOUND_IOP331_DATA_READ_OK));
|
|
}
|
|
static void arcmsr_hbc_doorbell_isr(struct AdapterControlBlock *pACB)
|
|
{
|
|
uint32_t outbound_doorbell;
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
|
|
/*
|
|
*******************************************************************
|
|
** Maybe here we need to check wrqbuffer_lock is lock or not
|
|
** DOORBELL: din! don!
|
|
** check if there are any mail need to pack from firmware
|
|
*******************************************************************
|
|
*/
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
do {
|
|
writel(outbound_doorbell, ®->outbound_doorbell_clear);
|
|
readl(®->outbound_doorbell_clear);
|
|
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK)
|
|
arcmsr_iop2drv_data_wrote_handle(pACB);
|
|
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK)
|
|
arcmsr_iop2drv_data_read_handle(pACB);
|
|
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE)
|
|
arcmsr_hbc_message_isr(pACB);
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
} while (outbound_doorbell & (ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK
|
|
| ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK
|
|
| ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE));
|
|
}
|
|
static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t flag_ccb;
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
struct ARCMSR_CDB *pARCMSR_CDB;
|
|
struct CommandControlBlock *pCCB;
|
|
bool error;
|
|
while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) {
|
|
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_drain_donequeue(acb, pCCB, error);
|
|
}
|
|
}
|
|
static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t index;
|
|
uint32_t flag_ccb;
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
struct ARCMSR_CDB *pARCMSR_CDB;
|
|
struct CommandControlBlock *pCCB;
|
|
bool error;
|
|
index = reg->doneq_index;
|
|
while ((flag_ccb = readl(®->done_qbuffer[index])) != 0) {
|
|
writel(0, ®->done_qbuffer[index]);
|
|
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_drain_donequeue(acb, pCCB, error);
|
|
index++;
|
|
index %= ARCMSR_MAX_HBB_POSTQUEUE;
|
|
reg->doneq_index = index;
|
|
}
|
|
}
|
|
|
|
static void arcmsr_hbc_postqueue_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_C *phbcmu;
|
|
struct ARCMSR_CDB *arcmsr_cdb;
|
|
struct CommandControlBlock *ccb;
|
|
uint32_t flag_ccb, ccb_cdb_phy, throttling = 0;
|
|
int error;
|
|
|
|
phbcmu = (struct MessageUnit_C *)acb->pmuC;
|
|
/* areca cdb command done */
|
|
/* Use correct offset and size for syncing */
|
|
|
|
while ((flag_ccb = readl(&phbcmu->outbound_queueport_low)) !=
|
|
0xFFFFFFFF) {
|
|
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
|
|
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset
|
|
+ ccb_cdb_phy);
|
|
ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
|
|
arcmsr_cdb);
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
|
|
? true : false;
|
|
/* check if command done with no error */
|
|
arcmsr_drain_donequeue(acb, ccb, error);
|
|
throttling++;
|
|
if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
|
|
writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING,
|
|
&phbcmu->inbound_doorbell);
|
|
throttling = 0;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
**********************************************************************************
|
|
** Handle a message interrupt
|
|
**
|
|
** The only message interrupt we expect is in response to a query for the current adapter config.
|
|
** We want this in order to compare the drivemap so that we can detect newly-attached drives.
|
|
**********************************************************************************
|
|
*/
|
|
static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A *reg = acb->pmuA;
|
|
/*clear interrupt and message state*/
|
|
writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus);
|
|
schedule_work(&acb->arcmsr_do_message_isr_bh);
|
|
}
|
|
static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
|
|
/*clear interrupt and message state*/
|
|
writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
|
|
schedule_work(&acb->arcmsr_do_message_isr_bh);
|
|
}
|
|
/*
|
|
**********************************************************************************
|
|
** Handle a message interrupt
|
|
**
|
|
** The only message interrupt we expect is in response to a query for the
|
|
** current adapter config.
|
|
** We want this in order to compare the drivemap so that we can detect newly-attached drives.
|
|
**********************************************************************************
|
|
*/
|
|
static void arcmsr_hbc_message_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_C *reg = acb->pmuC;
|
|
/*clear interrupt and message state*/
|
|
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);
|
|
schedule_work(&acb->arcmsr_do_message_isr_bh);
|
|
}
|
|
|
|
static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t outbound_intstatus;
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
outbound_intstatus = readl(®->outbound_intstatus) &
|
|
acb->outbound_int_enable;
|
|
if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT))
|
|
return IRQ_NONE;
|
|
do {
|
|
writel(outbound_intstatus, ®->outbound_intstatus);
|
|
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT)
|
|
arcmsr_hba_doorbell_isr(acb);
|
|
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT)
|
|
arcmsr_hba_postqueue_isr(acb);
|
|
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT)
|
|
arcmsr_hba_message_isr(acb);
|
|
outbound_intstatus = readl(®->outbound_intstatus) &
|
|
acb->outbound_int_enable;
|
|
} while (outbound_intstatus & (ARCMSR_MU_OUTBOUND_DOORBELL_INT
|
|
| ARCMSR_MU_OUTBOUND_POSTQUEUE_INT
|
|
| ARCMSR_MU_OUTBOUND_MESSAGE0_INT));
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t outbound_doorbell;
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
outbound_doorbell = readl(reg->iop2drv_doorbell) &
|
|
acb->outbound_int_enable;
|
|
if (!outbound_doorbell)
|
|
return IRQ_NONE;
|
|
do {
|
|
writel(~outbound_doorbell, reg->iop2drv_doorbell);
|
|
writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
|
|
if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK)
|
|
arcmsr_iop2drv_data_wrote_handle(acb);
|
|
if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK)
|
|
arcmsr_iop2drv_data_read_handle(acb);
|
|
if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE)
|
|
arcmsr_hbb_postqueue_isr(acb);
|
|
if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE)
|
|
arcmsr_hbb_message_isr(acb);
|
|
outbound_doorbell = readl(reg->iop2drv_doorbell) &
|
|
acb->outbound_int_enable;
|
|
} while (outbound_doorbell & (ARCMSR_IOP2DRV_DATA_WRITE_OK
|
|
| ARCMSR_IOP2DRV_DATA_READ_OK
|
|
| ARCMSR_IOP2DRV_CDB_DONE
|
|
| ARCMSR_IOP2DRV_MESSAGE_CMD_DONE));
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int arcmsr_handle_hbc_isr(struct AdapterControlBlock *pACB)
|
|
{
|
|
uint32_t host_interrupt_status;
|
|
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
|
|
/*
|
|
*********************************************
|
|
** check outbound intstatus
|
|
*********************************************
|
|
*/
|
|
host_interrupt_status = readl(&phbcmu->host_int_status) &
|
|
(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
|
|
ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
|
|
if (!host_interrupt_status)
|
|
return IRQ_NONE;
|
|
do {
|
|
if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR)
|
|
arcmsr_hbc_doorbell_isr(pACB);
|
|
/* MU post queue interrupts*/
|
|
if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)
|
|
arcmsr_hbc_postqueue_isr(pACB);
|
|
host_interrupt_status = readl(&phbcmu->host_int_status);
|
|
} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
|
|
ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
|
|
return IRQ_HANDLED;
|
|
}
|
|
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A:
|
|
return arcmsr_handle_hba_isr(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_B:
|
|
return arcmsr_handle_hbb_isr(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C:
|
|
return arcmsr_handle_hbc_isr(acb);
|
|
default:
|
|
return IRQ_NONE;
|
|
}
|
|
}
|
|
|
|
static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
|
|
{
|
|
if (acb) {
|
|
/* stop adapter background rebuild */
|
|
if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
|
|
uint32_t intmask_org;
|
|
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_stop_adapter_bgrb(acb);
|
|
arcmsr_flush_adapter_cache(acb);
|
|
arcmsr_enable_outbound_ints(acb, intmask_org);
|
|
}
|
|
}
|
|
}
|
|
|
|
void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
|
|
{
|
|
int32_t wqbuf_firstindex, wqbuf_lastindex;
|
|
uint8_t *pQbuffer;
|
|
struct QBUFFER __iomem *pwbuffer;
|
|
uint8_t __iomem *iop_data;
|
|
int32_t allxfer_len = 0;
|
|
pwbuffer = arcmsr_get_iop_wqbuffer(acb);
|
|
iop_data = (uint8_t __iomem *)pwbuffer->data;
|
|
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
|
|
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
|
|
wqbuf_firstindex = acb->wqbuf_firstindex;
|
|
wqbuf_lastindex = acb->wqbuf_lastindex;
|
|
while ((wqbuf_firstindex != wqbuf_lastindex) && (allxfer_len < 124)) {
|
|
pQbuffer = &acb->wqbuffer[wqbuf_firstindex];
|
|
memcpy(iop_data, pQbuffer, 1);
|
|
wqbuf_firstindex++;
|
|
wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
|
|
iop_data++;
|
|
allxfer_len++;
|
|
}
|
|
acb->wqbuf_firstindex = wqbuf_firstindex;
|
|
pwbuffer->data_len = allxfer_len;
|
|
arcmsr_iop_message_wrote(acb);
|
|
}
|
|
}
|
|
|
|
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
|
|
struct scsi_cmnd *cmd)
|
|
{
|
|
struct CMD_MESSAGE_FIELD *pcmdmessagefld;
|
|
int retvalue = 0, transfer_len = 0;
|
|
char *buffer;
|
|
struct scatterlist *sg;
|
|
uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 |
|
|
(uint32_t ) cmd->cmnd[6] << 16 |
|
|
(uint32_t ) cmd->cmnd[7] << 8 |
|
|
(uint32_t ) cmd->cmnd[8];
|
|
/* 4 bytes: Areca io control code */
|
|
sg = scsi_sglist(cmd);
|
|
buffer = kmap_atomic(sg_page(sg)) + sg->offset;
|
|
if (scsi_sg_count(cmd) > 1) {
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
goto message_out;
|
|
}
|
|
transfer_len += sg->length;
|
|
|
|
if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
goto message_out;
|
|
}
|
|
pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
|
|
switch(controlcode) {
|
|
|
|
case ARCMSR_MESSAGE_READ_RQBUFFER: {
|
|
unsigned char *ver_addr;
|
|
uint8_t *pQbuffer, *ptmpQbuffer;
|
|
int32_t allxfer_len = 0;
|
|
|
|
ver_addr = kmalloc(1032, GFP_ATOMIC);
|
|
if (!ver_addr) {
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
goto message_out;
|
|
}
|
|
|
|
ptmpQbuffer = ver_addr;
|
|
while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
|
|
&& (allxfer_len < 1031)) {
|
|
pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
|
|
memcpy(ptmpQbuffer, pQbuffer, 1);
|
|
acb->rqbuf_firstindex++;
|
|
acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
|
|
ptmpQbuffer++;
|
|
allxfer_len++;
|
|
}
|
|
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
|
|
|
|
struct QBUFFER __iomem *prbuffer;
|
|
uint8_t __iomem *iop_data;
|
|
int32_t iop_len;
|
|
|
|
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
|
|
prbuffer = arcmsr_get_iop_rqbuffer(acb);
|
|
iop_data = prbuffer->data;
|
|
iop_len = readl(&prbuffer->data_len);
|
|
while (iop_len > 0) {
|
|
acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
|
|
acb->rqbuf_lastindex++;
|
|
acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
|
|
iop_data++;
|
|
iop_len--;
|
|
}
|
|
arcmsr_iop_message_read(acb);
|
|
}
|
|
memcpy(pcmdmessagefld->messagedatabuffer, ver_addr, allxfer_len);
|
|
pcmdmessagefld->cmdmessage.Length = allxfer_len;
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
kfree(ver_addr);
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
|
|
unsigned char *ver_addr;
|
|
int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
|
|
uint8_t *pQbuffer, *ptmpuserbuffer;
|
|
|
|
ver_addr = kmalloc(1032, GFP_ATOMIC);
|
|
if (!ver_addr) {
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
goto message_out;
|
|
}
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
ptmpuserbuffer = ver_addr;
|
|
user_len = pcmdmessagefld->cmdmessage.Length;
|
|
memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
|
|
wqbuf_lastindex = acb->wqbuf_lastindex;
|
|
wqbuf_firstindex = acb->wqbuf_firstindex;
|
|
if (wqbuf_lastindex != wqbuf_firstindex) {
|
|
struct SENSE_DATA *sensebuffer =
|
|
(struct SENSE_DATA *)cmd->sense_buffer;
|
|
arcmsr_post_ioctldata2iop(acb);
|
|
/* has error report sensedata */
|
|
sensebuffer->ErrorCode = 0x70;
|
|
sensebuffer->SenseKey = ILLEGAL_REQUEST;
|
|
sensebuffer->AdditionalSenseLength = 0x0A;
|
|
sensebuffer->AdditionalSenseCode = 0x20;
|
|
sensebuffer->Valid = 1;
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
} else {
|
|
my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
|
|
&(ARCMSR_MAX_QBUFFER - 1);
|
|
if (my_empty_len >= user_len) {
|
|
while (user_len > 0) {
|
|
pQbuffer =
|
|
&acb->wqbuffer[acb->wqbuf_lastindex];
|
|
memcpy(pQbuffer, ptmpuserbuffer, 1);
|
|
acb->wqbuf_lastindex++;
|
|
acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
|
|
ptmpuserbuffer++;
|
|
user_len--;
|
|
}
|
|
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
|
|
acb->acb_flags &=
|
|
~ACB_F_MESSAGE_WQBUFFER_CLEARED;
|
|
arcmsr_post_ioctldata2iop(acb);
|
|
}
|
|
} else {
|
|
/* has error report sensedata */
|
|
struct SENSE_DATA *sensebuffer =
|
|
(struct SENSE_DATA *)cmd->sense_buffer;
|
|
sensebuffer->ErrorCode = 0x70;
|
|
sensebuffer->SenseKey = ILLEGAL_REQUEST;
|
|
sensebuffer->AdditionalSenseLength = 0x0A;
|
|
sensebuffer->AdditionalSenseCode = 0x20;
|
|
sensebuffer->Valid = 1;
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
}
|
|
}
|
|
kfree(ver_addr);
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
|
|
uint8_t *pQbuffer = acb->rqbuffer;
|
|
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
|
|
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
|
|
arcmsr_iop_message_read(acb);
|
|
}
|
|
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
|
|
acb->rqbuf_firstindex = 0;
|
|
acb->rqbuf_lastindex = 0;
|
|
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
|
|
uint8_t *pQbuffer = acb->wqbuffer;
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
|
|
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
|
|
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
|
|
arcmsr_iop_message_read(acb);
|
|
}
|
|
acb->acb_flags |=
|
|
(ACB_F_MESSAGE_WQBUFFER_CLEARED |
|
|
ACB_F_MESSAGE_WQBUFFER_READED);
|
|
acb->wqbuf_firstindex = 0;
|
|
acb->wqbuf_lastindex = 0;
|
|
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
|
|
uint8_t *pQbuffer;
|
|
|
|
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
|
|
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
|
|
arcmsr_iop_message_read(acb);
|
|
}
|
|
acb->acb_flags |=
|
|
(ACB_F_MESSAGE_WQBUFFER_CLEARED
|
|
| ACB_F_MESSAGE_RQBUFFER_CLEARED
|
|
| ACB_F_MESSAGE_WQBUFFER_READED);
|
|
acb->rqbuf_firstindex = 0;
|
|
acb->rqbuf_lastindex = 0;
|
|
acb->wqbuf_firstindex = 0;
|
|
acb->wqbuf_lastindex = 0;
|
|
pQbuffer = acb->rqbuffer;
|
|
memset(pQbuffer, 0, sizeof(struct QBUFFER));
|
|
pQbuffer = acb->wqbuffer;
|
|
memset(pQbuffer, 0, sizeof(struct QBUFFER));
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_RETURN_CODE_3F: {
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_3F;
|
|
}
|
|
break;
|
|
}
|
|
case ARCMSR_MESSAGE_SAY_HELLO: {
|
|
int8_t *hello_string = "Hello! I am ARCMSR";
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}else{
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_OK;
|
|
}
|
|
memcpy(pcmdmessagefld->messagedatabuffer, hello_string
|
|
, (int16_t)strlen(hello_string));
|
|
}
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_SAY_GOODBYE:
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}
|
|
arcmsr_iop_parking(acb);
|
|
break;
|
|
|
|
case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
|
|
if(acb->fw_flag == FW_DEADLOCK) {
|
|
pcmdmessagefld->cmdmessage.ReturnCode =
|
|
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
|
|
}
|
|
arcmsr_flush_adapter_cache(acb);
|
|
break;
|
|
|
|
default:
|
|
retvalue = ARCMSR_MESSAGE_FAIL;
|
|
}
|
|
message_out:
|
|
sg = scsi_sglist(cmd);
|
|
kunmap_atomic(buffer - sg->offset);
|
|
return retvalue;
|
|
}
|
|
|
|
static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
|
|
{
|
|
struct list_head *head = &acb->ccb_free_list;
|
|
struct CommandControlBlock *ccb = NULL;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&acb->ccblist_lock, flags);
|
|
if (!list_empty(head)) {
|
|
ccb = list_entry(head->next, struct CommandControlBlock, list);
|
|
list_del_init(&ccb->list);
|
|
}else{
|
|
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
|
|
return 0;
|
|
}
|
|
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
|
|
return ccb;
|
|
}
|
|
|
|
static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
|
|
struct scsi_cmnd *cmd)
|
|
{
|
|
switch (cmd->cmnd[0]) {
|
|
case INQUIRY: {
|
|
unsigned char inqdata[36];
|
|
char *buffer;
|
|
struct scatterlist *sg;
|
|
|
|
if (cmd->device->lun) {
|
|
cmd->result = (DID_TIME_OUT << 16);
|
|
cmd->scsi_done(cmd);
|
|
return;
|
|
}
|
|
inqdata[0] = TYPE_PROCESSOR;
|
|
/* Periph Qualifier & Periph Dev Type */
|
|
inqdata[1] = 0;
|
|
/* rem media bit & Dev Type Modifier */
|
|
inqdata[2] = 0;
|
|
/* ISO, ECMA, & ANSI versions */
|
|
inqdata[4] = 31;
|
|
/* length of additional data */
|
|
strncpy(&inqdata[8], "Areca ", 8);
|
|
/* Vendor Identification */
|
|
strncpy(&inqdata[16], "RAID controller ", 16);
|
|
/* Product Identification */
|
|
strncpy(&inqdata[32], "R001", 4); /* Product Revision */
|
|
|
|
sg = scsi_sglist(cmd);
|
|
buffer = kmap_atomic(sg_page(sg)) + sg->offset;
|
|
|
|
memcpy(buffer, inqdata, sizeof(inqdata));
|
|
sg = scsi_sglist(cmd);
|
|
kunmap_atomic(buffer - sg->offset);
|
|
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
break;
|
|
case WRITE_BUFFER:
|
|
case READ_BUFFER: {
|
|
if (arcmsr_iop_message_xfer(acb, cmd))
|
|
cmd->result = (DID_ERROR << 16);
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
break;
|
|
default:
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
}
|
|
|
|
static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
|
|
void (* done)(struct scsi_cmnd *))
|
|
{
|
|
struct Scsi_Host *host = cmd->device->host;
|
|
struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
|
|
struct CommandControlBlock *ccb;
|
|
int target = cmd->device->id;
|
|
int lun = cmd->device->lun;
|
|
uint8_t scsicmd = cmd->cmnd[0];
|
|
cmd->scsi_done = done;
|
|
cmd->host_scribble = NULL;
|
|
cmd->result = 0;
|
|
if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){
|
|
if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
|
|
cmd->result = (DID_NO_CONNECT << 16);
|
|
}
|
|
cmd->scsi_done(cmd);
|
|
return 0;
|
|
}
|
|
if (target == 16) {
|
|
/* virtual device for iop message transfer */
|
|
arcmsr_handle_virtual_command(acb, cmd);
|
|
return 0;
|
|
}
|
|
ccb = arcmsr_get_freeccb(acb);
|
|
if (!ccb)
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
|
|
cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
|
|
cmd->scsi_done(cmd);
|
|
return 0;
|
|
}
|
|
arcmsr_post_ccb(acb, ccb);
|
|
return 0;
|
|
}
|
|
|
|
static DEF_SCSI_QCMD(arcmsr_queue_command)
|
|
|
|
static bool arcmsr_get_hba_config(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
char *acb_firm_model = acb->firm_model;
|
|
char *acb_firm_version = acb->firm_version;
|
|
char *acb_device_map = acb->device_map;
|
|
char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]);
|
|
char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]);
|
|
char __iomem *iop_device_map = (char __iomem *)(®->message_rwbuffer[21]);
|
|
int count;
|
|
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
|
|
if (!arcmsr_hba_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
|
|
miscellaneous data' timeout \n", acb->host->host_no);
|
|
return false;
|
|
}
|
|
count = 8;
|
|
while (count){
|
|
*acb_firm_model = readb(iop_firm_model);
|
|
acb_firm_model++;
|
|
iop_firm_model++;
|
|
count--;
|
|
}
|
|
|
|
count = 16;
|
|
while (count){
|
|
*acb_firm_version = readb(iop_firm_version);
|
|
acb_firm_version++;
|
|
iop_firm_version++;
|
|
count--;
|
|
}
|
|
|
|
count=16;
|
|
while(count){
|
|
*acb_device_map = readb(iop_device_map);
|
|
acb_device_map++;
|
|
iop_device_map++;
|
|
count--;
|
|
}
|
|
printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
|
|
acb->host->host_no,
|
|
acb->firm_version,
|
|
acb->firm_model);
|
|
acb->signature = readl(®->message_rwbuffer[0]);
|
|
acb->firm_request_len = readl(®->message_rwbuffer[1]);
|
|
acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
|
|
acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
|
|
acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
|
|
acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
|
|
return true;
|
|
}
|
|
static bool arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
struct pci_dev *pdev = acb->pdev;
|
|
void *dma_coherent;
|
|
dma_addr_t dma_coherent_handle;
|
|
char *acb_firm_model = acb->firm_model;
|
|
char *acb_firm_version = acb->firm_version;
|
|
char *acb_device_map = acb->device_map;
|
|
char __iomem *iop_firm_model;
|
|
/*firm_model,15,60-67*/
|
|
char __iomem *iop_firm_version;
|
|
/*firm_version,17,68-83*/
|
|
char __iomem *iop_device_map;
|
|
/*firm_version,21,84-99*/
|
|
int count;
|
|
dma_coherent = dma_alloc_coherent(&pdev->dev, sizeof(struct MessageUnit_B), &dma_coherent_handle, GFP_KERNEL);
|
|
if (!dma_coherent){
|
|
printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error for hbb mu\n", acb->host->host_no);
|
|
return false;
|
|
}
|
|
acb->dma_coherent_handle_hbb_mu = dma_coherent_handle;
|
|
reg = (struct MessageUnit_B *)dma_coherent;
|
|
acb->pmuB = reg;
|
|
reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
|
|
reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
|
|
reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
|
|
reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
|
|
reg->message_wbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
|
|
reg->message_rbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
|
|
reg->message_rwbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
|
|
iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); /*firm_model,15,60-67*/
|
|
iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); /*firm_version,17,68-83*/
|
|
iop_device_map = (char __iomem *)(®->message_rwbuffer[21]); /*firm_version,21,84-99*/
|
|
|
|
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
|
|
miscellaneous data' timeout \n", acb->host->host_no);
|
|
return false;
|
|
}
|
|
count = 8;
|
|
while (count){
|
|
*acb_firm_model = readb(iop_firm_model);
|
|
acb_firm_model++;
|
|
iop_firm_model++;
|
|
count--;
|
|
}
|
|
count = 16;
|
|
while (count){
|
|
*acb_firm_version = readb(iop_firm_version);
|
|
acb_firm_version++;
|
|
iop_firm_version++;
|
|
count--;
|
|
}
|
|
|
|
count = 16;
|
|
while(count){
|
|
*acb_device_map = readb(iop_device_map);
|
|
acb_device_map++;
|
|
iop_device_map++;
|
|
count--;
|
|
}
|
|
|
|
printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
|
|
acb->host->host_no,
|
|
acb->firm_version,
|
|
acb->firm_model);
|
|
|
|
acb->signature = readl(®->message_rwbuffer[1]);
|
|
/*firm_signature,1,00-03*/
|
|
acb->firm_request_len = readl(®->message_rwbuffer[2]);
|
|
/*firm_request_len,1,04-07*/
|
|
acb->firm_numbers_queue = readl(®->message_rwbuffer[3]);
|
|
/*firm_numbers_queue,2,08-11*/
|
|
acb->firm_sdram_size = readl(®->message_rwbuffer[4]);
|
|
/*firm_sdram_size,3,12-15*/
|
|
acb->firm_hd_channels = readl(®->message_rwbuffer[5]);
|
|
/*firm_ide_channels,4,16-19*/
|
|
acb->firm_cfg_version = readl(®->message_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
|
|
/*firm_ide_channels,4,16-19*/
|
|
return true;
|
|
}
|
|
|
|
static bool arcmsr_get_hbc_config(struct AdapterControlBlock *pACB)
|
|
{
|
|
uint32_t intmask_org, Index, firmware_state = 0;
|
|
struct MessageUnit_C *reg = pACB->pmuC;
|
|
char *acb_firm_model = pACB->firm_model;
|
|
char *acb_firm_version = pACB->firm_version;
|
|
char *iop_firm_model = (char *)(®->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
|
|
char *iop_firm_version = (char *)(®->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
|
|
int count;
|
|
/* disable all outbound interrupt */
|
|
intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
|
|
writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
|
|
/* wait firmware ready */
|
|
do {
|
|
firmware_state = readl(®->outbound_msgaddr1);
|
|
} while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
|
|
/* post "get config" instruction */
|
|
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
|
|
/* wait message ready */
|
|
for (Index = 0; Index < 2000; Index++) {
|
|
if (readl(®->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
|
|
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);/*clear interrupt*/
|
|
break;
|
|
}
|
|
udelay(10);
|
|
} /*max 1 seconds*/
|
|
if (Index >= 2000) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
|
|
miscellaneous data' timeout \n", pACB->host->host_no);
|
|
return false;
|
|
}
|
|
count = 8;
|
|
while (count) {
|
|
*acb_firm_model = readb(iop_firm_model);
|
|
acb_firm_model++;
|
|
iop_firm_model++;
|
|
count--;
|
|
}
|
|
count = 16;
|
|
while (count) {
|
|
*acb_firm_version = readb(iop_firm_version);
|
|
acb_firm_version++;
|
|
iop_firm_version++;
|
|
count--;
|
|
}
|
|
printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
|
|
pACB->host->host_no,
|
|
pACB->firm_version,
|
|
pACB->firm_model);
|
|
pACB->firm_request_len = readl(®->msgcode_rwbuffer[1]); /*firm_request_len,1,04-07*/
|
|
pACB->firm_numbers_queue = readl(®->msgcode_rwbuffer[2]); /*firm_numbers_queue,2,08-11*/
|
|
pACB->firm_sdram_size = readl(®->msgcode_rwbuffer[3]); /*firm_sdram_size,3,12-15*/
|
|
pACB->firm_hd_channels = readl(®->msgcode_rwbuffer[4]); /*firm_ide_channels,4,16-19*/
|
|
pACB->firm_cfg_version = readl(®->msgcode_rwbuffer[25]); /*firm_cfg_version,25,100-103*/
|
|
/*all interrupt service will be enable at arcmsr_iop_init*/
|
|
return true;
|
|
}
|
|
static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
|
|
{
|
|
bool rtn = false;
|
|
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A:
|
|
rtn = arcmsr_get_hba_config(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_B:
|
|
rtn = arcmsr_get_hbb_config(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C:
|
|
rtn = arcmsr_get_hbc_config(acb);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
|
|
acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD;
|
|
else
|
|
acb->maxOutstanding = acb->firm_numbers_queue - 1;
|
|
acb->host->can_queue = acb->maxOutstanding;
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *poll_ccb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
struct CommandControlBlock *ccb;
|
|
struct ARCMSR_CDB *arcmsr_cdb;
|
|
uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
|
|
int rtn;
|
|
bool error;
|
|
polling_hba_ccb_retry:
|
|
poll_count++;
|
|
outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable;
|
|
writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
|
|
while (1) {
|
|
if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
|
|
if (poll_ccb_done){
|
|
rtn = SUCCESS;
|
|
break;
|
|
}else {
|
|
msleep(25);
|
|
if (poll_count > 100){
|
|
rtn = FAILED;
|
|
break;
|
|
}
|
|
goto polling_hba_ccb_retry;
|
|
}
|
|
}
|
|
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
|
|
ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
|
|
poll_ccb_done = (ccb == poll_ccb) ? 1:0;
|
|
if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
|
|
if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
|
|
" poll command abort successfully \n"
|
|
, acb->host->host_no
|
|
, ccb->pcmd->device->id
|
|
, (u32)ccb->pcmd->device->lun
|
|
, ccb);
|
|
ccb->pcmd->result = DID_ABORT << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
continue;
|
|
}
|
|
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
|
|
" command done ccb = '0x%p'"
|
|
"ccboutstandingcount = %d \n"
|
|
, acb->host->host_no
|
|
, ccb
|
|
, atomic_read(&acb->ccboutstandingcount));
|
|
continue;
|
|
}
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_report_ccb_state(acb, ccb, error);
|
|
}
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *poll_ccb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
struct ARCMSR_CDB *arcmsr_cdb;
|
|
struct CommandControlBlock *ccb;
|
|
uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
|
|
int index, rtn;
|
|
bool error;
|
|
polling_hbb_ccb_retry:
|
|
|
|
poll_count++;
|
|
/* clear doorbell interrupt */
|
|
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
|
|
while(1){
|
|
index = reg->doneq_index;
|
|
if ((flag_ccb = readl(®->done_qbuffer[index])) == 0) {
|
|
if (poll_ccb_done){
|
|
rtn = SUCCESS;
|
|
break;
|
|
}else {
|
|
msleep(25);
|
|
if (poll_count > 100){
|
|
rtn = FAILED;
|
|
break;
|
|
}
|
|
goto polling_hbb_ccb_retry;
|
|
}
|
|
}
|
|
writel(0, ®->done_qbuffer[index]);
|
|
index++;
|
|
/*if last index number set it to 0 */
|
|
index %= ARCMSR_MAX_HBB_POSTQUEUE;
|
|
reg->doneq_index = index;
|
|
/* check if command done with no error*/
|
|
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));
|
|
ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
|
|
poll_ccb_done = (ccb == poll_ccb) ? 1:0;
|
|
if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
|
|
if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
|
|
" poll command abort successfully \n"
|
|
,acb->host->host_no
|
|
,ccb->pcmd->device->id
|
|
,(u32)ccb->pcmd->device->lun
|
|
,ccb);
|
|
ccb->pcmd->result = DID_ABORT << 16;
|
|
arcmsr_ccb_complete(ccb);
|
|
continue;
|
|
}
|
|
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
|
|
" command done ccb = '0x%p'"
|
|
"ccboutstandingcount = %d \n"
|
|
, acb->host->host_no
|
|
, ccb
|
|
, atomic_read(&acb->ccboutstandingcount));
|
|
continue;
|
|
}
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
|
|
arcmsr_report_ccb_state(acb, ccb, error);
|
|
}
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_polling_hbc_ccbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_ccb)
|
|
{
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
uint32_t flag_ccb, ccb_cdb_phy;
|
|
struct ARCMSR_CDB *arcmsr_cdb;
|
|
bool error;
|
|
struct CommandControlBlock *pCCB;
|
|
uint32_t poll_ccb_done = 0, poll_count = 0;
|
|
int rtn;
|
|
polling_hbc_ccb_retry:
|
|
poll_count++;
|
|
while (1) {
|
|
if ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
|
|
if (poll_ccb_done) {
|
|
rtn = SUCCESS;
|
|
break;
|
|
} else {
|
|
msleep(25);
|
|
if (poll_count > 100) {
|
|
rtn = FAILED;
|
|
break;
|
|
}
|
|
goto polling_hbc_ccb_retry;
|
|
}
|
|
}
|
|
flag_ccb = readl(®->outbound_queueport_low);
|
|
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
|
|
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);/*frame must be 32 bytes aligned*/
|
|
pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
|
|
poll_ccb_done = (pCCB == poll_ccb) ? 1 : 0;
|
|
/* check ifcommand done with no error*/
|
|
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
|
|
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
|
|
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
|
|
" poll command abort successfully \n"
|
|
, acb->host->host_no
|
|
, pCCB->pcmd->device->id
|
|
, (u32)pCCB->pcmd->device->lun
|
|
, pCCB);
|
|
pCCB->pcmd->result = DID_ABORT << 16;
|
|
arcmsr_ccb_complete(pCCB);
|
|
continue;
|
|
}
|
|
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
|
|
" command done ccb = '0x%p'"
|
|
"ccboutstandingcount = %d \n"
|
|
, acb->host->host_no
|
|
, pCCB
|
|
, atomic_read(&acb->ccboutstandingcount));
|
|
continue;
|
|
}
|
|
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
|
|
arcmsr_report_ccb_state(acb, pCCB, error);
|
|
}
|
|
return rtn;
|
|
}
|
|
static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *poll_ccb)
|
|
{
|
|
int rtn = 0;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
rtn = arcmsr_polling_hba_ccbdone(acb, poll_ccb);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
rtn = arcmsr_polling_hbb_ccbdone(acb, poll_ccb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
rtn = arcmsr_polling_hbc_ccbdone(acb, poll_ccb);
|
|
}
|
|
}
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
|
|
|
|
/*
|
|
********************************************************************
|
|
** here we need to tell iop 331 our freeccb.HighPart
|
|
** if freeccb.HighPart is not zero
|
|
********************************************************************
|
|
*/
|
|
cdb_phyaddr = lower_32_bits(acb->dma_coherent_handle);
|
|
cdb_phyaddr_hi32 = upper_32_bits(acb->dma_coherent_handle);
|
|
acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
|
|
/*
|
|
***********************************************************************
|
|
** if adapter type B, set window of "post command Q"
|
|
***********************************************************************
|
|
*/
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
if (cdb_phyaddr_hi32 != 0) {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
writel(ARCMSR_SIGNATURE_SET_CONFIG, \
|
|
®->message_rwbuffer[0]);
|
|
writel(cdb_phyaddr_hi32, ®->message_rwbuffer[1]);
|
|
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
|
|
®->inbound_msgaddr0);
|
|
if (!arcmsr_hba_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
|
|
part physical address timeout\n",
|
|
acb->host->host_no);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
unsigned long post_queue_phyaddr;
|
|
uint32_t __iomem *rwbuffer;
|
|
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
reg->postq_index = 0;
|
|
reg->doneq_index = 0;
|
|
writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \
|
|
acb->host->host_no);
|
|
return 1;
|
|
}
|
|
post_queue_phyaddr = acb->dma_coherent_handle_hbb_mu;
|
|
rwbuffer = reg->message_rwbuffer;
|
|
/* driver "set config" signature */
|
|
writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
|
|
/* normal should be zero */
|
|
writel(cdb_phyaddr_hi32, rwbuffer++);
|
|
/* postQ size (256 + 8)*4 */
|
|
writel(post_queue_phyaddr, rwbuffer++);
|
|
/* doneQ size (256 + 8)*4 */
|
|
writel(post_queue_phyaddr + 1056, rwbuffer++);
|
|
/* ccb maxQ size must be --> [(256 + 8)*4]*/
|
|
writel(1056, rwbuffer);
|
|
|
|
writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
|
|
timeout \n",acb->host->host_no);
|
|
return 1;
|
|
}
|
|
arcmsr_hbb_enable_driver_mode(acb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
if (cdb_phyaddr_hi32 != 0) {
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
|
|
printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
|
|
acb->adapter_index, cdb_phyaddr_hi32);
|
|
writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
|
|
writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
|
|
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
|
|
if (!arcmsr_hbc_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
|
|
timeout \n", acb->host->host_no);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t firmware_state = 0;
|
|
switch (acb->adapter_type) {
|
|
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
do {
|
|
firmware_state = readl(®->outbound_msgaddr1);
|
|
} while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
do {
|
|
firmware_state = readl(reg->iop2drv_doorbell);
|
|
} while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
|
|
writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
do {
|
|
firmware_state = readl(®->outbound_msgaddr1);
|
|
} while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
} else {
|
|
acb->fw_flag = FW_NORMAL;
|
|
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
}
|
|
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
|
|
if (atomic_dec_and_test(&acb->rq_map_token)) {
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
}
|
|
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B __iomem *reg = acb->pmuB;
|
|
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
} else {
|
|
acb->fw_flag = FW_NORMAL;
|
|
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
}
|
|
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
|
|
if (atomic_dec_and_test(&acb->rq_map_token)) {
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
}
|
|
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void arcmsr_request_hbc_device_map(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_C __iomem *reg = acb->pmuC;
|
|
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
} else {
|
|
acb->fw_flag = FW_NORMAL;
|
|
if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
}
|
|
atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
|
|
if (atomic_dec_and_test(&acb->rq_map_token)) {
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
return;
|
|
}
|
|
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void arcmsr_request_device_map(unsigned long pacb)
|
|
{
|
|
struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb;
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
arcmsr_request_hba_device_map(acb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
arcmsr_request_hbb_device_map(acb);
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
arcmsr_request_hbc_device_map(acb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
acb->acb_flags |= ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
|
|
if (!arcmsr_hba_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
|
|
rebulid' timeout \n", acb->host->host_no);
|
|
}
|
|
}
|
|
|
|
static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
acb->acb_flags |= ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
|
|
rebulid' timeout \n",acb->host->host_no);
|
|
}
|
|
}
|
|
|
|
static void arcmsr_start_hbc_bgrb(struct AdapterControlBlock *pACB)
|
|
{
|
|
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
|
|
pACB->acb_flags |= ACB_F_MSG_START_BGRB;
|
|
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
|
|
if (!arcmsr_hbc_wait_msgint_ready(pACB)) {
|
|
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
|
|
rebulid' timeout \n", pACB->host->host_no);
|
|
}
|
|
return;
|
|
}
|
|
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A:
|
|
arcmsr_start_hba_bgrb(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_B:
|
|
arcmsr_start_hbb_bgrb(acb);
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C:
|
|
arcmsr_start_hbc_bgrb(acb);
|
|
}
|
|
}
|
|
|
|
static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A: {
|
|
struct MessageUnit_A __iomem *reg = acb->pmuA;
|
|
uint32_t outbound_doorbell;
|
|
/* empty doorbell Qbuffer if door bell ringed */
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
/*clear doorbell interrupt */
|
|
writel(outbound_doorbell, ®->outbound_doorbell);
|
|
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
|
|
}
|
|
break;
|
|
|
|
case ACB_ADAPTER_TYPE_B: {
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
/*clear interrupt and message state*/
|
|
writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
|
|
writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
|
|
/* let IOP know data has been read */
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C: {
|
|
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
|
|
uint32_t outbound_doorbell;
|
|
/* empty doorbell Qbuffer if door bell ringed */
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
writel(outbound_doorbell, ®->outbound_doorbell_clear);
|
|
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
|
|
{
|
|
switch (acb->adapter_type) {
|
|
case ACB_ADAPTER_TYPE_A:
|
|
return;
|
|
case ACB_ADAPTER_TYPE_B:
|
|
{
|
|
struct MessageUnit_B *reg = acb->pmuB;
|
|
writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
|
|
if (!arcmsr_hbb_wait_msgint_ready(acb)) {
|
|
printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
case ACB_ADAPTER_TYPE_C:
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
|
|
{
|
|
uint8_t value[64];
|
|
int i, count = 0;
|
|
struct MessageUnit_A __iomem *pmuA = acb->pmuA;
|
|
struct MessageUnit_C __iomem *pmuC = acb->pmuC;
|
|
|
|
/* backup pci config data */
|
|
printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
|
|
for (i = 0; i < 64; i++) {
|
|
pci_read_config_byte(acb->pdev, i, &value[i]);
|
|
}
|
|
/* hardware reset signal */
|
|
if ((acb->dev_id == 0x1680)) {
|
|
writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
|
|
} else if ((acb->dev_id == 0x1880)) {
|
|
do {
|
|
count++;
|
|
writel(0xF, &pmuC->write_sequence);
|
|
writel(0x4, &pmuC->write_sequence);
|
|
writel(0xB, &pmuC->write_sequence);
|
|
writel(0x2, &pmuC->write_sequence);
|
|
writel(0x7, &pmuC->write_sequence);
|
|
writel(0xD, &pmuC->write_sequence);
|
|
} while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
|
|
writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
|
|
} else {
|
|
pci_write_config_byte(acb->pdev, 0x84, 0x20);
|
|
}
|
|
msleep(2000);
|
|
/* write back pci config data */
|
|
for (i = 0; i < 64; i++) {
|
|
pci_write_config_byte(acb->pdev, i, value[i]);
|
|
}
|
|
msleep(1000);
|
|
return;
|
|
}
|
|
static void arcmsr_iop_init(struct AdapterControlBlock *acb)
|
|
{
|
|
uint32_t intmask_org;
|
|
/* disable all outbound interrupt */
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_wait_firmware_ready(acb);
|
|
arcmsr_iop_confirm(acb);
|
|
/*start background rebuild*/
|
|
arcmsr_start_adapter_bgrb(acb);
|
|
/* empty doorbell Qbuffer if door bell ringed */
|
|
arcmsr_clear_doorbell_queue_buffer(acb);
|
|
arcmsr_enable_eoi_mode(acb);
|
|
/* enable outbound Post Queue,outbound doorbell Interrupt */
|
|
arcmsr_enable_outbound_ints(acb, intmask_org);
|
|
acb->acb_flags |= ACB_F_IOP_INITED;
|
|
}
|
|
|
|
static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
|
|
{
|
|
struct CommandControlBlock *ccb;
|
|
uint32_t intmask_org;
|
|
uint8_t rtnval = 0x00;
|
|
int i = 0;
|
|
unsigned long flags;
|
|
|
|
if (atomic_read(&acb->ccboutstandingcount) != 0) {
|
|
/* disable all outbound interrupt */
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
/* talk to iop 331 outstanding command aborted */
|
|
rtnval = arcmsr_abort_allcmd(acb);
|
|
/* clear all outbound posted Q */
|
|
arcmsr_done4abort_postqueue(acb);
|
|
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
|
|
ccb = acb->pccb_pool[i];
|
|
if (ccb->startdone == ARCMSR_CCB_START) {
|
|
scsi_dma_unmap(ccb->pcmd);
|
|
ccb->startdone = ARCMSR_CCB_DONE;
|
|
ccb->ccb_flags = 0;
|
|
spin_lock_irqsave(&acb->ccblist_lock, flags);
|
|
list_add_tail(&ccb->list, &acb->ccb_free_list);
|
|
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
|
|
}
|
|
}
|
|
atomic_set(&acb->ccboutstandingcount, 0);
|
|
/* enable all outbound interrupt */
|
|
arcmsr_enable_outbound_ints(acb, intmask_org);
|
|
return rtnval;
|
|
}
|
|
return rtnval;
|
|
}
|
|
|
|
static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
|
|
{
|
|
struct AdapterControlBlock *acb;
|
|
uint32_t intmask_org, outbound_doorbell;
|
|
int retry_count = 0;
|
|
int rtn = FAILED;
|
|
acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
|
|
printk(KERN_ERR "arcmsr: executing bus reset eh.....num_resets = %d, num_aborts = %d \n", acb->num_resets, acb->num_aborts);
|
|
acb->num_resets++;
|
|
|
|
switch(acb->adapter_type){
|
|
case ACB_ADAPTER_TYPE_A:{
|
|
if (acb->acb_flags & ACB_F_BUS_RESET){
|
|
long timeout;
|
|
printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
|
|
timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
|
|
if (timeout) {
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
acb->acb_flags |= ACB_F_BUS_RESET;
|
|
if (!arcmsr_iop_reset(acb)) {
|
|
struct MessageUnit_A __iomem *reg;
|
|
reg = acb->pmuA;
|
|
arcmsr_hardware_reset(acb);
|
|
acb->acb_flags &= ~ACB_F_IOP_INITED;
|
|
sleep_again:
|
|
ssleep(ARCMSR_SLEEPTIME);
|
|
if ((readl(®->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
|
|
printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
|
|
if (retry_count > ARCMSR_RETRYCOUNT) {
|
|
acb->fw_flag = FW_DEADLOCK;
|
|
printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
|
|
return FAILED;
|
|
}
|
|
retry_count++;
|
|
goto sleep_again;
|
|
}
|
|
acb->acb_flags |= ACB_F_IOP_INITED;
|
|
/* disable all outbound interrupt */
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_get_firmware_spec(acb);
|
|
arcmsr_start_adapter_bgrb(acb);
|
|
/* clear Qbuffer if door bell ringed */
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */
|
|
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
|
|
/* enable outbound Post Queue,outbound doorbell Interrupt */
|
|
arcmsr_enable_outbound_ints(acb, intmask_org);
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
rtn = SUCCESS;
|
|
printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
|
|
} else {
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
|
|
rtn = SUCCESS;
|
|
}
|
|
break;
|
|
}
|
|
case ACB_ADAPTER_TYPE_B:{
|
|
acb->acb_flags |= ACB_F_BUS_RESET;
|
|
if (!arcmsr_iop_reset(acb)) {
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
rtn = FAILED;
|
|
} else {
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
rtn = SUCCESS;
|
|
}
|
|
break;
|
|
}
|
|
case ACB_ADAPTER_TYPE_C:{
|
|
if (acb->acb_flags & ACB_F_BUS_RESET) {
|
|
long timeout;
|
|
printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
|
|
timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
|
|
if (timeout) {
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
acb->acb_flags |= ACB_F_BUS_RESET;
|
|
if (!arcmsr_iop_reset(acb)) {
|
|
struct MessageUnit_C __iomem *reg;
|
|
reg = acb->pmuC;
|
|
arcmsr_hardware_reset(acb);
|
|
acb->acb_flags &= ~ACB_F_IOP_INITED;
|
|
sleep:
|
|
ssleep(ARCMSR_SLEEPTIME);
|
|
if ((readl(®->host_diagnostic) & 0x04) != 0) {
|
|
printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
|
|
if (retry_count > ARCMSR_RETRYCOUNT) {
|
|
acb->fw_flag = FW_DEADLOCK;
|
|
printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
|
|
return FAILED;
|
|
}
|
|
retry_count++;
|
|
goto sleep;
|
|
}
|
|
acb->acb_flags |= ACB_F_IOP_INITED;
|
|
/* disable all outbound interrupt */
|
|
intmask_org = arcmsr_disable_outbound_ints(acb);
|
|
arcmsr_get_firmware_spec(acb);
|
|
arcmsr_start_adapter_bgrb(acb);
|
|
/* clear Qbuffer if door bell ringed */
|
|
outbound_doorbell = readl(®->outbound_doorbell);
|
|
writel(outbound_doorbell, ®->outbound_doorbell_clear); /*clear interrupt */
|
|
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
|
|
/* enable outbound Post Queue,outbound doorbell Interrupt */
|
|
arcmsr_enable_outbound_ints(acb, intmask_org);
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
rtn = SUCCESS;
|
|
printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
|
|
} else {
|
|
acb->acb_flags &= ~ACB_F_BUS_RESET;
|
|
atomic_set(&acb->rq_map_token, 16);
|
|
atomic_set(&acb->ante_token_value, 16);
|
|
acb->fw_flag = FW_NORMAL;
|
|
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
|
|
rtn = SUCCESS;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
|
|
struct CommandControlBlock *ccb)
|
|
{
|
|
int rtn;
|
|
rtn = arcmsr_polling_ccbdone(acb, ccb);
|
|
return rtn;
|
|
}
|
|
|
|
static int arcmsr_abort(struct scsi_cmnd *cmd)
|
|
{
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *)cmd->device->host->hostdata;
|
|
int i = 0;
|
|
int rtn = FAILED;
|
|
printk(KERN_NOTICE
|
|
"arcmsr%d: abort device command of scsi id = %d lun = %d \n",
|
|
acb->host->host_no, cmd->device->id, (u32)cmd->device->lun);
|
|
acb->acb_flags |= ACB_F_ABORT;
|
|
acb->num_aborts++;
|
|
/*
|
|
************************************************
|
|
** the all interrupt service routine is locked
|
|
** we need to handle it as soon as possible and exit
|
|
************************************************
|
|
*/
|
|
if (!atomic_read(&acb->ccboutstandingcount))
|
|
return rtn;
|
|
|
|
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
|
|
struct CommandControlBlock *ccb = acb->pccb_pool[i];
|
|
if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
|
|
ccb->startdone = ARCMSR_CCB_ABORTED;
|
|
rtn = arcmsr_abort_one_cmd(acb, ccb);
|
|
break;
|
|
}
|
|
}
|
|
acb->acb_flags &= ~ACB_F_ABORT;
|
|
return rtn;
|
|
}
|
|
|
|
static const char *arcmsr_info(struct Scsi_Host *host)
|
|
{
|
|
struct AdapterControlBlock *acb =
|
|
(struct AdapterControlBlock *) host->hostdata;
|
|
static char buf[256];
|
|
char *type;
|
|
int raid6 = 1;
|
|
switch (acb->pdev->device) {
|
|
case PCI_DEVICE_ID_ARECA_1110:
|
|
case PCI_DEVICE_ID_ARECA_1200:
|
|
case PCI_DEVICE_ID_ARECA_1202:
|
|
case PCI_DEVICE_ID_ARECA_1210:
|
|
raid6 = 0;
|
|
/*FALLTHRU*/
|
|
case PCI_DEVICE_ID_ARECA_1120:
|
|
case PCI_DEVICE_ID_ARECA_1130:
|
|
case PCI_DEVICE_ID_ARECA_1160:
|
|
case PCI_DEVICE_ID_ARECA_1170:
|
|
case PCI_DEVICE_ID_ARECA_1201:
|
|
case PCI_DEVICE_ID_ARECA_1220:
|
|
case PCI_DEVICE_ID_ARECA_1230:
|
|
case PCI_DEVICE_ID_ARECA_1260:
|
|
case PCI_DEVICE_ID_ARECA_1270:
|
|
case PCI_DEVICE_ID_ARECA_1280:
|
|
type = "SATA";
|
|
break;
|
|
case PCI_DEVICE_ID_ARECA_1380:
|
|
case PCI_DEVICE_ID_ARECA_1381:
|
|
case PCI_DEVICE_ID_ARECA_1680:
|
|
case PCI_DEVICE_ID_ARECA_1681:
|
|
case PCI_DEVICE_ID_ARECA_1880:
|
|
type = "SAS";
|
|
break;
|
|
default:
|
|
type = "X-TYPE";
|
|
break;
|
|
}
|
|
sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
|
|
type, raid6 ? "( RAID6 capable)" : "",
|
|
ARCMSR_DRIVER_VERSION);
|
|
return buf;
|
|
}
|