mirror of https://gitee.com/openkylin/linux.git
7622 lines
218 KiB
C
7622 lines
218 KiB
C
/*
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* Disk Array driver for HP Smart Array SAS controllers
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* Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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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, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Questions/Comments/Bugfixes to iss_storagedev@hp.com
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*
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/pci-aspm.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fs.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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#include <linux/compat.h>
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#include <linux/blktrace_api.h>
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#include <linux/uaccess.h>
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#include <linux/io.h>
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#include <linux/dma-mapping.h>
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#include <linux/completion.h>
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#include <linux/moduleparam.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include <linux/cciss_ioctl.h>
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#include <linux/string.h>
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#include <linux/bitmap.h>
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#include <linux/atomic.h>
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#include <linux/jiffies.h>
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#include <linux/percpu-defs.h>
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#include <linux/percpu.h>
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#include <asm/div64.h>
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#include "hpsa_cmd.h"
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#include "hpsa.h"
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/* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
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#define HPSA_DRIVER_VERSION "3.4.4-1"
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#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
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#define HPSA "hpsa"
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/* How long to wait (in milliseconds) for board to go into simple mode */
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#define MAX_CONFIG_WAIT 30000
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#define MAX_IOCTL_CONFIG_WAIT 1000
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/*define how many times we will try a command because of bus resets */
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#define MAX_CMD_RETRIES 3
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/* Embedded module documentation macros - see modules.h */
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MODULE_AUTHOR("Hewlett-Packard Company");
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MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
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HPSA_DRIVER_VERSION);
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MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
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MODULE_VERSION(HPSA_DRIVER_VERSION);
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MODULE_LICENSE("GPL");
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static int hpsa_allow_any;
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module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(hpsa_allow_any,
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"Allow hpsa driver to access unknown HP Smart Array hardware");
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static int hpsa_simple_mode;
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module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(hpsa_simple_mode,
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"Use 'simple mode' rather than 'performant mode'");
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/* define the PCI info for the cards we can control */
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static const struct pci_device_id hpsa_pci_device_id[] = {
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3350},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3351},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3352},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3353},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3354},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3355},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3356},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1921},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1922},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1923},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1924},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1926},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1928},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1929},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BD},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BE},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BF},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C0},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C1},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C2},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C3},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C4},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C5},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C6},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C7},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C8},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C9},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CA},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CB},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CC},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD},
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{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE},
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{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076},
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{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087},
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{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D},
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{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088},
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{PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f},
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{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
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PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id);
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/* board_id = Subsystem Device ID & Vendor ID
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* product = Marketing Name for the board
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* access = Address of the struct of function pointers
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*/
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static struct board_type products[] = {
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{0x3241103C, "Smart Array P212", &SA5_access},
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{0x3243103C, "Smart Array P410", &SA5_access},
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{0x3245103C, "Smart Array P410i", &SA5_access},
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{0x3247103C, "Smart Array P411", &SA5_access},
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{0x3249103C, "Smart Array P812", &SA5_access},
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{0x324A103C, "Smart Array P712m", &SA5_access},
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{0x324B103C, "Smart Array P711m", &SA5_access},
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{0x3233103C, "HP StorageWorks 1210m", &SA5_access}, /* alias of 333f */
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{0x3350103C, "Smart Array P222", &SA5_access},
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{0x3351103C, "Smart Array P420", &SA5_access},
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{0x3352103C, "Smart Array P421", &SA5_access},
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{0x3353103C, "Smart Array P822", &SA5_access},
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{0x3354103C, "Smart Array P420i", &SA5_access},
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{0x3355103C, "Smart Array P220i", &SA5_access},
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{0x3356103C, "Smart Array P721m", &SA5_access},
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{0x1921103C, "Smart Array P830i", &SA5_access},
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{0x1922103C, "Smart Array P430", &SA5_access},
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{0x1923103C, "Smart Array P431", &SA5_access},
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{0x1924103C, "Smart Array P830", &SA5_access},
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{0x1926103C, "Smart Array P731m", &SA5_access},
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{0x1928103C, "Smart Array P230i", &SA5_access},
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{0x1929103C, "Smart Array P530", &SA5_access},
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{0x21BD103C, "Smart Array", &SA5_access},
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{0x21BE103C, "Smart Array", &SA5_access},
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{0x21BF103C, "Smart Array", &SA5_access},
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{0x21C0103C, "Smart Array", &SA5_access},
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{0x21C1103C, "Smart Array", &SA5_access},
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{0x21C2103C, "Smart Array", &SA5_access},
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{0x21C3103C, "Smart Array", &SA5_access},
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{0x21C4103C, "Smart Array", &SA5_access},
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{0x21C5103C, "Smart Array", &SA5_access},
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{0x21C6103C, "Smart Array", &SA5_access},
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{0x21C7103C, "Smart Array", &SA5_access},
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{0x21C8103C, "Smart Array", &SA5_access},
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{0x21C9103C, "Smart Array", &SA5_access},
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{0x21CA103C, "Smart Array", &SA5_access},
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{0x21CB103C, "Smart Array", &SA5_access},
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{0x21CC103C, "Smart Array", &SA5_access},
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{0x21CD103C, "Smart Array", &SA5_access},
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{0x21CE103C, "Smart Array", &SA5_access},
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{0x00761590, "HP Storage P1224 Array Controller", &SA5_access},
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{0x00871590, "HP Storage P1224e Array Controller", &SA5_access},
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{0x007D1590, "HP Storage P1228 Array Controller", &SA5_access},
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{0x00881590, "HP Storage P1228e Array Controller", &SA5_access},
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{0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access},
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{0xFFFF103C, "Unknown Smart Array", &SA5_access},
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};
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static int number_of_controllers;
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static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id);
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static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id);
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static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
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static void lock_and_start_io(struct ctlr_info *h);
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static void start_io(struct ctlr_info *h, unsigned long *flags);
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#ifdef CONFIG_COMPAT
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static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd,
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void __user *arg);
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#endif
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static void cmd_free(struct ctlr_info *h, struct CommandList *c);
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static void cmd_special_free(struct ctlr_info *h, struct CommandList *c);
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static struct CommandList *cmd_alloc(struct ctlr_info *h);
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static struct CommandList *cmd_special_alloc(struct ctlr_info *h);
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static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
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void *buff, size_t size, u16 page_code, unsigned char *scsi3addr,
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int cmd_type);
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#define VPD_PAGE (1 << 8)
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static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
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static void hpsa_scan_start(struct Scsi_Host *);
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static int hpsa_scan_finished(struct Scsi_Host *sh,
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unsigned long elapsed_time);
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static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
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static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd);
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static int hpsa_slave_alloc(struct scsi_device *sdev);
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static void hpsa_slave_destroy(struct scsi_device *sdev);
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static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
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static int check_for_unit_attention(struct ctlr_info *h,
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struct CommandList *c);
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static void check_ioctl_unit_attention(struct ctlr_info *h,
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struct CommandList *c);
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/* performant mode helper functions */
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static void calc_bucket_map(int *bucket, int num_buckets,
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int nsgs, int min_blocks, int *bucket_map);
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static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h);
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static inline u32 next_command(struct ctlr_info *h, u8 q);
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static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
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u32 *cfg_base_addr, u64 *cfg_base_addr_index,
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u64 *cfg_offset);
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static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
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unsigned long *memory_bar);
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static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id);
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static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr,
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int wait_for_ready);
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static inline void finish_cmd(struct CommandList *c);
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static void hpsa_wait_for_mode_change_ack(struct ctlr_info *h);
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#define BOARD_NOT_READY 0
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#define BOARD_READY 1
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static void hpsa_drain_accel_commands(struct ctlr_info *h);
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static void hpsa_flush_cache(struct ctlr_info *h);
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static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h,
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struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
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u8 *scsi3addr);
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static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
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{
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unsigned long *priv = shost_priv(sdev->host);
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return (struct ctlr_info *) *priv;
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}
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static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh)
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{
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unsigned long *priv = shost_priv(sh);
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return (struct ctlr_info *) *priv;
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}
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static int check_for_unit_attention(struct ctlr_info *h,
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struct CommandList *c)
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{
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if (c->err_info->SenseInfo[2] != UNIT_ATTENTION)
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return 0;
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switch (c->err_info->SenseInfo[12]) {
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case STATE_CHANGED:
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dev_warn(&h->pdev->dev, HPSA "%d: a state change "
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"detected, command retried\n", h->ctlr);
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break;
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case LUN_FAILED:
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dev_warn(&h->pdev->dev,
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HPSA "%d: LUN failure detected\n", h->ctlr);
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break;
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case REPORT_LUNS_CHANGED:
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dev_warn(&h->pdev->dev,
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HPSA "%d: report LUN data changed\n", h->ctlr);
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/*
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* Note: this REPORT_LUNS_CHANGED condition only occurs on the external
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* target (array) devices.
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*/
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break;
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case POWER_OR_RESET:
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dev_warn(&h->pdev->dev, HPSA "%d: a power on "
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"or device reset detected\n", h->ctlr);
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break;
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case UNIT_ATTENTION_CLEARED:
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dev_warn(&h->pdev->dev, HPSA "%d: unit attention "
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"cleared by another initiator\n", h->ctlr);
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break;
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default:
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dev_warn(&h->pdev->dev, HPSA "%d: unknown "
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"unit attention detected\n", h->ctlr);
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break;
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}
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return 1;
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}
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static int check_for_busy(struct ctlr_info *h, struct CommandList *c)
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{
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if (c->err_info->CommandStatus != CMD_TARGET_STATUS ||
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(c->err_info->ScsiStatus != SAM_STAT_BUSY &&
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c->err_info->ScsiStatus != SAM_STAT_TASK_SET_FULL))
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return 0;
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dev_warn(&h->pdev->dev, HPSA "device busy");
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return 1;
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}
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static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int status, len;
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struct ctlr_info *h;
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struct Scsi_Host *shost = class_to_shost(dev);
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char tmpbuf[10];
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if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
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return -EACCES;
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len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count;
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strncpy(tmpbuf, buf, len);
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tmpbuf[len] = '\0';
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if (sscanf(tmpbuf, "%d", &status) != 1)
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return -EINVAL;
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h = shost_to_hba(shost);
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h->acciopath_status = !!status;
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dev_warn(&h->pdev->dev,
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"hpsa: HP SSD Smart Path %s via sysfs update.\n",
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h->acciopath_status ? "enabled" : "disabled");
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return count;
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}
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static ssize_t host_store_raid_offload_debug(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int debug_level, len;
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struct ctlr_info *h;
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struct Scsi_Host *shost = class_to_shost(dev);
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char tmpbuf[10];
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if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
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return -EACCES;
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len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count;
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strncpy(tmpbuf, buf, len);
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tmpbuf[len] = '\0';
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if (sscanf(tmpbuf, "%d", &debug_level) != 1)
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return -EINVAL;
|
|
if (debug_level < 0)
|
|
debug_level = 0;
|
|
h = shost_to_hba(shost);
|
|
h->raid_offload_debug = debug_level;
|
|
dev_warn(&h->pdev->dev, "hpsa: Set raid_offload_debug level = %d\n",
|
|
h->raid_offload_debug);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t host_store_rescan(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
h = shost_to_hba(shost);
|
|
hpsa_scan_start(h->scsi_host);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t host_show_firmware_revision(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
unsigned char *fwrev;
|
|
|
|
h = shost_to_hba(shost);
|
|
if (!h->hba_inquiry_data)
|
|
return 0;
|
|
fwrev = &h->hba_inquiry_data[32];
|
|
return snprintf(buf, 20, "%c%c%c%c\n",
|
|
fwrev[0], fwrev[1], fwrev[2], fwrev[3]);
|
|
}
|
|
|
|
static ssize_t host_show_commands_outstanding(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
struct ctlr_info *h = shost_to_hba(shost);
|
|
|
|
return snprintf(buf, 20, "%d\n",
|
|
atomic_read(&h->commands_outstanding));
|
|
}
|
|
|
|
static ssize_t host_show_transport_mode(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
|
|
h = shost_to_hba(shost);
|
|
return snprintf(buf, 20, "%s\n",
|
|
h->transMethod & CFGTBL_Trans_Performant ?
|
|
"performant" : "simple");
|
|
}
|
|
|
|
static ssize_t host_show_hp_ssd_smart_path_status(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
|
|
h = shost_to_hba(shost);
|
|
return snprintf(buf, 30, "HP SSD Smart Path %s\n",
|
|
(h->acciopath_status == 1) ? "enabled" : "disabled");
|
|
}
|
|
|
|
/* List of controllers which cannot be hard reset on kexec with reset_devices */
|
|
static u32 unresettable_controller[] = {
|
|
0x324a103C, /* Smart Array P712m */
|
|
0x324b103C, /* SmartArray P711m */
|
|
0x3223103C, /* Smart Array P800 */
|
|
0x3234103C, /* Smart Array P400 */
|
|
0x3235103C, /* Smart Array P400i */
|
|
0x3211103C, /* Smart Array E200i */
|
|
0x3212103C, /* Smart Array E200 */
|
|
0x3213103C, /* Smart Array E200i */
|
|
0x3214103C, /* Smart Array E200i */
|
|
0x3215103C, /* Smart Array E200i */
|
|
0x3237103C, /* Smart Array E500 */
|
|
0x323D103C, /* Smart Array P700m */
|
|
0x40800E11, /* Smart Array 5i */
|
|
0x409C0E11, /* Smart Array 6400 */
|
|
0x409D0E11, /* Smart Array 6400 EM */
|
|
0x40700E11, /* Smart Array 5300 */
|
|
0x40820E11, /* Smart Array 532 */
|
|
0x40830E11, /* Smart Array 5312 */
|
|
0x409A0E11, /* Smart Array 641 */
|
|
0x409B0E11, /* Smart Array 642 */
|
|
0x40910E11, /* Smart Array 6i */
|
|
};
|
|
|
|
/* List of controllers which cannot even be soft reset */
|
|
static u32 soft_unresettable_controller[] = {
|
|
0x40800E11, /* Smart Array 5i */
|
|
0x40700E11, /* Smart Array 5300 */
|
|
0x40820E11, /* Smart Array 532 */
|
|
0x40830E11, /* Smart Array 5312 */
|
|
0x409A0E11, /* Smart Array 641 */
|
|
0x409B0E11, /* Smart Array 642 */
|
|
0x40910E11, /* Smart Array 6i */
|
|
/* Exclude 640x boards. These are two pci devices in one slot
|
|
* which share a battery backed cache module. One controls the
|
|
* cache, the other accesses the cache through the one that controls
|
|
* it. If we reset the one controlling the cache, the other will
|
|
* likely not be happy. Just forbid resetting this conjoined mess.
|
|
* The 640x isn't really supported by hpsa anyway.
|
|
*/
|
|
0x409C0E11, /* Smart Array 6400 */
|
|
0x409D0E11, /* Smart Array 6400 EM */
|
|
};
|
|
|
|
static int ctlr_is_hard_resettable(u32 board_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
|
|
if (unresettable_controller[i] == board_id)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int ctlr_is_soft_resettable(u32 board_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(soft_unresettable_controller); i++)
|
|
if (soft_unresettable_controller[i] == board_id)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int ctlr_is_resettable(u32 board_id)
|
|
{
|
|
return ctlr_is_hard_resettable(board_id) ||
|
|
ctlr_is_soft_resettable(board_id);
|
|
}
|
|
|
|
static ssize_t host_show_resettable(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
|
|
h = shost_to_hba(shost);
|
|
return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h->board_id));
|
|
}
|
|
|
|
static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[])
|
|
{
|
|
return (scsi3addr[3] & 0xC0) == 0x40;
|
|
}
|
|
|
|
static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
|
|
"1(ADM)", "UNKNOWN"
|
|
};
|
|
#define HPSA_RAID_0 0
|
|
#define HPSA_RAID_4 1
|
|
#define HPSA_RAID_1 2 /* also used for RAID 10 */
|
|
#define HPSA_RAID_5 3 /* also used for RAID 50 */
|
|
#define HPSA_RAID_51 4
|
|
#define HPSA_RAID_6 5 /* also used for RAID 60 */
|
|
#define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
|
|
#define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
|
|
|
|
static ssize_t raid_level_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
ssize_t l = 0;
|
|
unsigned char rlevel;
|
|
struct ctlr_info *h;
|
|
struct scsi_device *sdev;
|
|
struct hpsa_scsi_dev_t *hdev;
|
|
unsigned long flags;
|
|
|
|
sdev = to_scsi_device(dev);
|
|
h = sdev_to_hba(sdev);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
hdev = sdev->hostdata;
|
|
if (!hdev) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Is this even a logical drive? */
|
|
if (!is_logical_dev_addr_mode(hdev->scsi3addr)) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
l = snprintf(buf, PAGE_SIZE, "N/A\n");
|
|
return l;
|
|
}
|
|
|
|
rlevel = hdev->raid_level;
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (rlevel > RAID_UNKNOWN)
|
|
rlevel = RAID_UNKNOWN;
|
|
l = snprintf(buf, PAGE_SIZE, "RAID %s\n", raid_label[rlevel]);
|
|
return l;
|
|
}
|
|
|
|
static ssize_t lunid_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct scsi_device *sdev;
|
|
struct hpsa_scsi_dev_t *hdev;
|
|
unsigned long flags;
|
|
unsigned char lunid[8];
|
|
|
|
sdev = to_scsi_device(dev);
|
|
h = sdev_to_hba(sdev);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
hdev = sdev->hostdata;
|
|
if (!hdev) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return -ENODEV;
|
|
}
|
|
memcpy(lunid, hdev->scsi3addr, sizeof(lunid));
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return snprintf(buf, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
lunid[0], lunid[1], lunid[2], lunid[3],
|
|
lunid[4], lunid[5], lunid[6], lunid[7]);
|
|
}
|
|
|
|
static ssize_t unique_id_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct scsi_device *sdev;
|
|
struct hpsa_scsi_dev_t *hdev;
|
|
unsigned long flags;
|
|
unsigned char sn[16];
|
|
|
|
sdev = to_scsi_device(dev);
|
|
h = sdev_to_hba(sdev);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
hdev = sdev->hostdata;
|
|
if (!hdev) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return -ENODEV;
|
|
}
|
|
memcpy(sn, hdev->device_id, sizeof(sn));
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return snprintf(buf, 16 * 2 + 2,
|
|
"%02X%02X%02X%02X%02X%02X%02X%02X"
|
|
"%02X%02X%02X%02X%02X%02X%02X%02X\n",
|
|
sn[0], sn[1], sn[2], sn[3],
|
|
sn[4], sn[5], sn[6], sn[7],
|
|
sn[8], sn[9], sn[10], sn[11],
|
|
sn[12], sn[13], sn[14], sn[15]);
|
|
}
|
|
|
|
static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct scsi_device *sdev;
|
|
struct hpsa_scsi_dev_t *hdev;
|
|
unsigned long flags;
|
|
int offload_enabled;
|
|
|
|
sdev = to_scsi_device(dev);
|
|
h = sdev_to_hba(sdev);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
hdev = sdev->hostdata;
|
|
if (!hdev) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return -ENODEV;
|
|
}
|
|
offload_enabled = hdev->offload_enabled;
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return snprintf(buf, 20, "%d\n", offload_enabled);
|
|
}
|
|
|
|
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
|
|
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
|
|
static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
|
|
static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
|
|
static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,
|
|
host_show_hp_ssd_smart_path_enabled, NULL);
|
|
static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH,
|
|
host_show_hp_ssd_smart_path_status,
|
|
host_store_hp_ssd_smart_path_status);
|
|
static DEVICE_ATTR(raid_offload_debug, S_IWUSR, NULL,
|
|
host_store_raid_offload_debug);
|
|
static DEVICE_ATTR(firmware_revision, S_IRUGO,
|
|
host_show_firmware_revision, NULL);
|
|
static DEVICE_ATTR(commands_outstanding, S_IRUGO,
|
|
host_show_commands_outstanding, NULL);
|
|
static DEVICE_ATTR(transport_mode, S_IRUGO,
|
|
host_show_transport_mode, NULL);
|
|
static DEVICE_ATTR(resettable, S_IRUGO,
|
|
host_show_resettable, NULL);
|
|
|
|
static struct device_attribute *hpsa_sdev_attrs[] = {
|
|
&dev_attr_raid_level,
|
|
&dev_attr_lunid,
|
|
&dev_attr_unique_id,
|
|
&dev_attr_hp_ssd_smart_path_enabled,
|
|
NULL,
|
|
};
|
|
|
|
static struct device_attribute *hpsa_shost_attrs[] = {
|
|
&dev_attr_rescan,
|
|
&dev_attr_firmware_revision,
|
|
&dev_attr_commands_outstanding,
|
|
&dev_attr_transport_mode,
|
|
&dev_attr_resettable,
|
|
&dev_attr_hp_ssd_smart_path_status,
|
|
&dev_attr_raid_offload_debug,
|
|
NULL,
|
|
};
|
|
|
|
static struct scsi_host_template hpsa_driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = HPSA,
|
|
.proc_name = HPSA,
|
|
.queuecommand = hpsa_scsi_queue_command,
|
|
.scan_start = hpsa_scan_start,
|
|
.scan_finished = hpsa_scan_finished,
|
|
.change_queue_depth = scsi_change_queue_depth,
|
|
.this_id = -1,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
.eh_abort_handler = hpsa_eh_abort_handler,
|
|
.eh_device_reset_handler = hpsa_eh_device_reset_handler,
|
|
.ioctl = hpsa_ioctl,
|
|
.slave_alloc = hpsa_slave_alloc,
|
|
.slave_destroy = hpsa_slave_destroy,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = hpsa_compat_ioctl,
|
|
#endif
|
|
.sdev_attrs = hpsa_sdev_attrs,
|
|
.shost_attrs = hpsa_shost_attrs,
|
|
.max_sectors = 8192,
|
|
.no_write_same = 1,
|
|
};
|
|
|
|
|
|
/* Enqueuing and dequeuing functions for cmdlists. */
|
|
static inline void addQ(struct list_head *list, struct CommandList *c)
|
|
{
|
|
list_add_tail(&c->list, list);
|
|
}
|
|
|
|
static inline u32 next_command(struct ctlr_info *h, u8 q)
|
|
{
|
|
u32 a;
|
|
struct reply_queue_buffer *rq = &h->reply_queue[q];
|
|
|
|
if (h->transMethod & CFGTBL_Trans_io_accel1)
|
|
return h->access.command_completed(h, q);
|
|
|
|
if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
|
|
return h->access.command_completed(h, q);
|
|
|
|
if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
|
|
a = rq->head[rq->current_entry];
|
|
rq->current_entry++;
|
|
atomic_dec(&h->commands_outstanding);
|
|
} else {
|
|
a = FIFO_EMPTY;
|
|
}
|
|
/* Check for wraparound */
|
|
if (rq->current_entry == h->max_commands) {
|
|
rq->current_entry = 0;
|
|
rq->wraparound ^= 1;
|
|
}
|
|
return a;
|
|
}
|
|
|
|
/*
|
|
* There are some special bits in the bus address of the
|
|
* command that we have to set for the controller to know
|
|
* how to process the command:
|
|
*
|
|
* Normal performant mode:
|
|
* bit 0: 1 means performant mode, 0 means simple mode.
|
|
* bits 1-3 = block fetch table entry
|
|
* bits 4-6 = command type (== 0)
|
|
*
|
|
* ioaccel1 mode:
|
|
* bit 0 = "performant mode" bit.
|
|
* bits 1-3 = block fetch table entry
|
|
* bits 4-6 = command type (== 110)
|
|
* (command type is needed because ioaccel1 mode
|
|
* commands are submitted through the same register as normal
|
|
* mode commands, so this is how the controller knows whether
|
|
* the command is normal mode or ioaccel1 mode.)
|
|
*
|
|
* ioaccel2 mode:
|
|
* bit 0 = "performant mode" bit.
|
|
* bits 1-4 = block fetch table entry (note extra bit)
|
|
* bits 4-6 = not needed, because ioaccel2 mode has
|
|
* a separate special register for submitting commands.
|
|
*/
|
|
|
|
/* set_performant_mode: Modify the tag for cciss performant
|
|
* set bit 0 for pull model, bits 3-1 for block fetch
|
|
* register number
|
|
*/
|
|
static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
|
|
{
|
|
if (likely(h->transMethod & CFGTBL_Trans_Performant)) {
|
|
c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
|
|
if (likely(h->msix_vector > 0))
|
|
c->Header.ReplyQueue =
|
|
raw_smp_processor_id() % h->nreply_queues;
|
|
}
|
|
}
|
|
|
|
static void set_ioaccel1_performant_mode(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex];
|
|
|
|
/* Tell the controller to post the reply to the queue for this
|
|
* processor. This seems to give the best I/O throughput.
|
|
*/
|
|
cp->ReplyQueue = smp_processor_id() % h->nreply_queues;
|
|
/* Set the bits in the address sent down to include:
|
|
* - performant mode bit (bit 0)
|
|
* - pull count (bits 1-3)
|
|
* - command type (bits 4-6)
|
|
*/
|
|
c->busaddr |= 1 | (h->ioaccel1_blockFetchTable[c->Header.SGList] << 1) |
|
|
IOACCEL1_BUSADDR_CMDTYPE;
|
|
}
|
|
|
|
static void set_ioaccel2_performant_mode(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex];
|
|
|
|
/* Tell the controller to post the reply to the queue for this
|
|
* processor. This seems to give the best I/O throughput.
|
|
*/
|
|
cp->reply_queue = smp_processor_id() % h->nreply_queues;
|
|
/* Set the bits in the address sent down to include:
|
|
* - performant mode bit not used in ioaccel mode 2
|
|
* - pull count (bits 0-3)
|
|
* - command type isn't needed for ioaccel2
|
|
*/
|
|
c->busaddr |= (h->ioaccel2_blockFetchTable[cp->sg_count]);
|
|
}
|
|
|
|
static int is_firmware_flash_cmd(u8 *cdb)
|
|
{
|
|
return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE;
|
|
}
|
|
|
|
/*
|
|
* During firmware flash, the heartbeat register may not update as frequently
|
|
* as it should. So we dial down lockup detection during firmware flash. and
|
|
* dial it back up when firmware flash completes.
|
|
*/
|
|
#define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
|
|
#define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
|
|
static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
if (!is_firmware_flash_cmd(c->Request.CDB))
|
|
return;
|
|
atomic_inc(&h->firmware_flash_in_progress);
|
|
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH;
|
|
}
|
|
|
|
static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
if (is_firmware_flash_cmd(c->Request.CDB) &&
|
|
atomic_dec_and_test(&h->firmware_flash_in_progress))
|
|
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
|
|
}
|
|
|
|
static void enqueue_cmd_and_start_io(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (c->cmd_type) {
|
|
case CMD_IOACCEL1:
|
|
set_ioaccel1_performant_mode(h, c);
|
|
break;
|
|
case CMD_IOACCEL2:
|
|
set_ioaccel2_performant_mode(h, c);
|
|
break;
|
|
default:
|
|
set_performant_mode(h, c);
|
|
}
|
|
dial_down_lockup_detection_during_fw_flash(h, c);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
addQ(&h->reqQ, c);
|
|
h->Qdepth++;
|
|
start_io(h, &flags);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
}
|
|
|
|
static inline void removeQ(struct CommandList *c)
|
|
{
|
|
if (WARN_ON(list_empty(&c->list)))
|
|
return;
|
|
list_del_init(&c->list);
|
|
}
|
|
|
|
static inline int is_hba_lunid(unsigned char scsi3addr[])
|
|
{
|
|
return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
|
|
}
|
|
|
|
static inline int is_scsi_rev_5(struct ctlr_info *h)
|
|
{
|
|
if (!h->hba_inquiry_data)
|
|
return 0;
|
|
if ((h->hba_inquiry_data[2] & 0x07) == 5)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_find_target_lun(struct ctlr_info *h,
|
|
unsigned char scsi3addr[], int bus, int *target, int *lun)
|
|
{
|
|
/* finds an unused bus, target, lun for a new physical device
|
|
* assumes h->devlock is held
|
|
*/
|
|
int i, found = 0;
|
|
DECLARE_BITMAP(lun_taken, HPSA_MAX_DEVICES);
|
|
|
|
bitmap_zero(lun_taken, HPSA_MAX_DEVICES);
|
|
|
|
for (i = 0; i < h->ndevices; i++) {
|
|
if (h->dev[i]->bus == bus && h->dev[i]->target != -1)
|
|
__set_bit(h->dev[i]->target, lun_taken);
|
|
}
|
|
|
|
i = find_first_zero_bit(lun_taken, HPSA_MAX_DEVICES);
|
|
if (i < HPSA_MAX_DEVICES) {
|
|
/* *bus = 1; */
|
|
*target = i;
|
|
*lun = 0;
|
|
found = 1;
|
|
}
|
|
return !found;
|
|
}
|
|
|
|
/* Add an entry into h->dev[] array. */
|
|
static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno,
|
|
struct hpsa_scsi_dev_t *device,
|
|
struct hpsa_scsi_dev_t *added[], int *nadded)
|
|
{
|
|
/* assumes h->devlock is held */
|
|
int n = h->ndevices;
|
|
int i;
|
|
unsigned char addr1[8], addr2[8];
|
|
struct hpsa_scsi_dev_t *sd;
|
|
|
|
if (n >= HPSA_MAX_DEVICES) {
|
|
dev_err(&h->pdev->dev, "too many devices, some will be "
|
|
"inaccessible.\n");
|
|
return -1;
|
|
}
|
|
|
|
/* physical devices do not have lun or target assigned until now. */
|
|
if (device->lun != -1)
|
|
/* Logical device, lun is already assigned. */
|
|
goto lun_assigned;
|
|
|
|
/* If this device a non-zero lun of a multi-lun device
|
|
* byte 4 of the 8-byte LUN addr will contain the logical
|
|
* unit no, zero otherise.
|
|
*/
|
|
if (device->scsi3addr[4] == 0) {
|
|
/* This is not a non-zero lun of a multi-lun device */
|
|
if (hpsa_find_target_lun(h, device->scsi3addr,
|
|
device->bus, &device->target, &device->lun) != 0)
|
|
return -1;
|
|
goto lun_assigned;
|
|
}
|
|
|
|
/* This is a non-zero lun of a multi-lun device.
|
|
* Search through our list and find the device which
|
|
* has the same 8 byte LUN address, excepting byte 4.
|
|
* Assign the same bus and target for this new LUN.
|
|
* Use the logical unit number from the firmware.
|
|
*/
|
|
memcpy(addr1, device->scsi3addr, 8);
|
|
addr1[4] = 0;
|
|
for (i = 0; i < n; i++) {
|
|
sd = h->dev[i];
|
|
memcpy(addr2, sd->scsi3addr, 8);
|
|
addr2[4] = 0;
|
|
/* differ only in byte 4? */
|
|
if (memcmp(addr1, addr2, 8) == 0) {
|
|
device->bus = sd->bus;
|
|
device->target = sd->target;
|
|
device->lun = device->scsi3addr[4];
|
|
break;
|
|
}
|
|
}
|
|
if (device->lun == -1) {
|
|
dev_warn(&h->pdev->dev, "physical device with no LUN=0,"
|
|
" suspect firmware bug or unsupported hardware "
|
|
"configuration.\n");
|
|
return -1;
|
|
}
|
|
|
|
lun_assigned:
|
|
|
|
h->dev[n] = device;
|
|
h->ndevices++;
|
|
added[*nadded] = device;
|
|
(*nadded)++;
|
|
|
|
/* initially, (before registering with scsi layer) we don't
|
|
* know our hostno and we don't want to print anything first
|
|
* time anyway (the scsi layer's inquiries will show that info)
|
|
*/
|
|
/* if (hostno != -1) */
|
|
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d added.\n",
|
|
scsi_device_type(device->devtype), hostno,
|
|
device->bus, device->target, device->lun);
|
|
return 0;
|
|
}
|
|
|
|
/* Update an entry in h->dev[] array. */
|
|
static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno,
|
|
int entry, struct hpsa_scsi_dev_t *new_entry)
|
|
{
|
|
/* assumes h->devlock is held */
|
|
BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES);
|
|
|
|
/* Raid level changed. */
|
|
h->dev[entry]->raid_level = new_entry->raid_level;
|
|
|
|
/* Raid offload parameters changed. */
|
|
h->dev[entry]->offload_config = new_entry->offload_config;
|
|
h->dev[entry]->offload_enabled = new_entry->offload_enabled;
|
|
h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle;
|
|
h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror;
|
|
h->dev[entry]->raid_map = new_entry->raid_map;
|
|
|
|
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d updated.\n",
|
|
scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
|
|
new_entry->target, new_entry->lun);
|
|
}
|
|
|
|
/* Replace an entry from h->dev[] array. */
|
|
static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno,
|
|
int entry, struct hpsa_scsi_dev_t *new_entry,
|
|
struct hpsa_scsi_dev_t *added[], int *nadded,
|
|
struct hpsa_scsi_dev_t *removed[], int *nremoved)
|
|
{
|
|
/* assumes h->devlock is held */
|
|
BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES);
|
|
removed[*nremoved] = h->dev[entry];
|
|
(*nremoved)++;
|
|
|
|
/*
|
|
* New physical devices won't have target/lun assigned yet
|
|
* so we need to preserve the values in the slot we are replacing.
|
|
*/
|
|
if (new_entry->target == -1) {
|
|
new_entry->target = h->dev[entry]->target;
|
|
new_entry->lun = h->dev[entry]->lun;
|
|
}
|
|
|
|
h->dev[entry] = new_entry;
|
|
added[*nadded] = new_entry;
|
|
(*nadded)++;
|
|
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d changed.\n",
|
|
scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
|
|
new_entry->target, new_entry->lun);
|
|
}
|
|
|
|
/* Remove an entry from h->dev[] array. */
|
|
static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry,
|
|
struct hpsa_scsi_dev_t *removed[], int *nremoved)
|
|
{
|
|
/* assumes h->devlock is held */
|
|
int i;
|
|
struct hpsa_scsi_dev_t *sd;
|
|
|
|
BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES);
|
|
|
|
sd = h->dev[entry];
|
|
removed[*nremoved] = h->dev[entry];
|
|
(*nremoved)++;
|
|
|
|
for (i = entry; i < h->ndevices-1; i++)
|
|
h->dev[i] = h->dev[i+1];
|
|
h->ndevices--;
|
|
dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d removed.\n",
|
|
scsi_device_type(sd->devtype), hostno, sd->bus, sd->target,
|
|
sd->lun);
|
|
}
|
|
|
|
#define SCSI3ADDR_EQ(a, b) ( \
|
|
(a)[7] == (b)[7] && \
|
|
(a)[6] == (b)[6] && \
|
|
(a)[5] == (b)[5] && \
|
|
(a)[4] == (b)[4] && \
|
|
(a)[3] == (b)[3] && \
|
|
(a)[2] == (b)[2] && \
|
|
(a)[1] == (b)[1] && \
|
|
(a)[0] == (b)[0])
|
|
|
|
static void fixup_botched_add(struct ctlr_info *h,
|
|
struct hpsa_scsi_dev_t *added)
|
|
{
|
|
/* called when scsi_add_device fails in order to re-adjust
|
|
* h->dev[] to match the mid layer's view.
|
|
*/
|
|
unsigned long flags;
|
|
int i, j;
|
|
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
for (i = 0; i < h->ndevices; i++) {
|
|
if (h->dev[i] == added) {
|
|
for (j = i; j < h->ndevices-1; j++)
|
|
h->dev[j] = h->dev[j+1];
|
|
h->ndevices--;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
kfree(added);
|
|
}
|
|
|
|
static inline int device_is_the_same(struct hpsa_scsi_dev_t *dev1,
|
|
struct hpsa_scsi_dev_t *dev2)
|
|
{
|
|
/* we compare everything except lun and target as these
|
|
* are not yet assigned. Compare parts likely
|
|
* to differ first
|
|
*/
|
|
if (memcmp(dev1->scsi3addr, dev2->scsi3addr,
|
|
sizeof(dev1->scsi3addr)) != 0)
|
|
return 0;
|
|
if (memcmp(dev1->device_id, dev2->device_id,
|
|
sizeof(dev1->device_id)) != 0)
|
|
return 0;
|
|
if (memcmp(dev1->model, dev2->model, sizeof(dev1->model)) != 0)
|
|
return 0;
|
|
if (memcmp(dev1->vendor, dev2->vendor, sizeof(dev1->vendor)) != 0)
|
|
return 0;
|
|
if (dev1->devtype != dev2->devtype)
|
|
return 0;
|
|
if (dev1->bus != dev2->bus)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static inline int device_updated(struct hpsa_scsi_dev_t *dev1,
|
|
struct hpsa_scsi_dev_t *dev2)
|
|
{
|
|
/* Device attributes that can change, but don't mean
|
|
* that the device is a different device, nor that the OS
|
|
* needs to be told anything about the change.
|
|
*/
|
|
if (dev1->raid_level != dev2->raid_level)
|
|
return 1;
|
|
if (dev1->offload_config != dev2->offload_config)
|
|
return 1;
|
|
if (dev1->offload_enabled != dev2->offload_enabled)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Find needle in haystack. If exact match found, return DEVICE_SAME,
|
|
* and return needle location in *index. If scsi3addr matches, but not
|
|
* vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle
|
|
* location in *index.
|
|
* In the case of a minor device attribute change, such as RAID level, just
|
|
* return DEVICE_UPDATED, along with the updated device's location in index.
|
|
* If needle not found, return DEVICE_NOT_FOUND.
|
|
*/
|
|
static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle,
|
|
struct hpsa_scsi_dev_t *haystack[], int haystack_size,
|
|
int *index)
|
|
{
|
|
int i;
|
|
#define DEVICE_NOT_FOUND 0
|
|
#define DEVICE_CHANGED 1
|
|
#define DEVICE_SAME 2
|
|
#define DEVICE_UPDATED 3
|
|
for (i = 0; i < haystack_size; i++) {
|
|
if (haystack[i] == NULL) /* previously removed. */
|
|
continue;
|
|
if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) {
|
|
*index = i;
|
|
if (device_is_the_same(needle, haystack[i])) {
|
|
if (device_updated(needle, haystack[i]))
|
|
return DEVICE_UPDATED;
|
|
return DEVICE_SAME;
|
|
} else {
|
|
/* Keep offline devices offline */
|
|
if (needle->volume_offline)
|
|
return DEVICE_NOT_FOUND;
|
|
return DEVICE_CHANGED;
|
|
}
|
|
}
|
|
}
|
|
*index = -1;
|
|
return DEVICE_NOT_FOUND;
|
|
}
|
|
|
|
static void hpsa_monitor_offline_device(struct ctlr_info *h,
|
|
unsigned char scsi3addr[])
|
|
{
|
|
struct offline_device_entry *device;
|
|
unsigned long flags;
|
|
|
|
/* Check to see if device is already on the list */
|
|
spin_lock_irqsave(&h->offline_device_lock, flags);
|
|
list_for_each_entry(device, &h->offline_device_list, offline_list) {
|
|
if (memcmp(device->scsi3addr, scsi3addr,
|
|
sizeof(device->scsi3addr)) == 0) {
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
return;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
|
|
/* Device is not on the list, add it. */
|
|
device = kmalloc(sizeof(*device), GFP_KERNEL);
|
|
if (!device) {
|
|
dev_warn(&h->pdev->dev, "out of memory in %s\n", __func__);
|
|
return;
|
|
}
|
|
memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
|
|
spin_lock_irqsave(&h->offline_device_lock, flags);
|
|
list_add_tail(&device->offline_list, &h->offline_device_list);
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
}
|
|
|
|
/* Print a message explaining various offline volume states */
|
|
static void hpsa_show_volume_status(struct ctlr_info *h,
|
|
struct hpsa_scsi_dev_t *sd)
|
|
{
|
|
if (sd->volume_offline == HPSA_VPD_LV_STATUS_UNSUPPORTED)
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
switch (sd->volume_offline) {
|
|
case HPSA_LV_OK:
|
|
break;
|
|
case HPSA_LV_UNDERGOING_ERASE:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_UNDERGOING_RPI:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_PENDING_RPI:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_ENCRYPTED_NO_KEY:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_UNDERGOING_ENCRYPTION:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_PENDING_ENCRYPTION:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
case HPSA_LV_PENDING_ENCRYPTION_REKEYING:
|
|
dev_info(&h->pdev->dev,
|
|
"C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n",
|
|
h->scsi_host->host_no,
|
|
sd->bus, sd->target, sd->lun);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
|
|
struct hpsa_scsi_dev_t *sd[], int nsds)
|
|
{
|
|
/* sd contains scsi3 addresses and devtypes, and inquiry
|
|
* data. This function takes what's in sd to be the current
|
|
* reality and updates h->dev[] to reflect that reality.
|
|
*/
|
|
int i, entry, device_change, changes = 0;
|
|
struct hpsa_scsi_dev_t *csd;
|
|
unsigned long flags;
|
|
struct hpsa_scsi_dev_t **added, **removed;
|
|
int nadded, nremoved;
|
|
struct Scsi_Host *sh = NULL;
|
|
|
|
added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL);
|
|
removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL);
|
|
|
|
if (!added || !removed) {
|
|
dev_warn(&h->pdev->dev, "out of memory in "
|
|
"adjust_hpsa_scsi_table\n");
|
|
goto free_and_out;
|
|
}
|
|
|
|
spin_lock_irqsave(&h->devlock, flags);
|
|
|
|
/* find any devices in h->dev[] that are not in
|
|
* sd[] and remove them from h->dev[], and for any
|
|
* devices which have changed, remove the old device
|
|
* info and add the new device info.
|
|
* If minor device attributes change, just update
|
|
* the existing device structure.
|
|
*/
|
|
i = 0;
|
|
nremoved = 0;
|
|
nadded = 0;
|
|
while (i < h->ndevices) {
|
|
csd = h->dev[i];
|
|
device_change = hpsa_scsi_find_entry(csd, sd, nsds, &entry);
|
|
if (device_change == DEVICE_NOT_FOUND) {
|
|
changes++;
|
|
hpsa_scsi_remove_entry(h, hostno, i,
|
|
removed, &nremoved);
|
|
continue; /* remove ^^^, hence i not incremented */
|
|
} else if (device_change == DEVICE_CHANGED) {
|
|
changes++;
|
|
hpsa_scsi_replace_entry(h, hostno, i, sd[entry],
|
|
added, &nadded, removed, &nremoved);
|
|
/* Set it to NULL to prevent it from being freed
|
|
* at the bottom of hpsa_update_scsi_devices()
|
|
*/
|
|
sd[entry] = NULL;
|
|
} else if (device_change == DEVICE_UPDATED) {
|
|
hpsa_scsi_update_entry(h, hostno, i, sd[entry]);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
/* Now, make sure every device listed in sd[] is also
|
|
* listed in h->dev[], adding them if they aren't found
|
|
*/
|
|
|
|
for (i = 0; i < nsds; i++) {
|
|
if (!sd[i]) /* if already added above. */
|
|
continue;
|
|
|
|
/* Don't add devices which are NOT READY, FORMAT IN PROGRESS
|
|
* as the SCSI mid-layer does not handle such devices well.
|
|
* It relentlessly loops sending TUR at 3Hz, then READ(10)
|
|
* at 160Hz, and prevents the system from coming up.
|
|
*/
|
|
if (sd[i]->volume_offline) {
|
|
hpsa_show_volume_status(h, sd[i]);
|
|
dev_info(&h->pdev->dev, "c%db%dt%dl%d: temporarily offline\n",
|
|
h->scsi_host->host_no,
|
|
sd[i]->bus, sd[i]->target, sd[i]->lun);
|
|
continue;
|
|
}
|
|
|
|
device_change = hpsa_scsi_find_entry(sd[i], h->dev,
|
|
h->ndevices, &entry);
|
|
if (device_change == DEVICE_NOT_FOUND) {
|
|
changes++;
|
|
if (hpsa_scsi_add_entry(h, hostno, sd[i],
|
|
added, &nadded) != 0)
|
|
break;
|
|
sd[i] = NULL; /* prevent from being freed later. */
|
|
} else if (device_change == DEVICE_CHANGED) {
|
|
/* should never happen... */
|
|
changes++;
|
|
dev_warn(&h->pdev->dev,
|
|
"device unexpectedly changed.\n");
|
|
/* but if it does happen, we just ignore that device */
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&h->devlock, flags);
|
|
|
|
/* Monitor devices which are in one of several NOT READY states to be
|
|
* brought online later. This must be done without holding h->devlock,
|
|
* so don't touch h->dev[]
|
|
*/
|
|
for (i = 0; i < nsds; i++) {
|
|
if (!sd[i]) /* if already added above. */
|
|
continue;
|
|
if (sd[i]->volume_offline)
|
|
hpsa_monitor_offline_device(h, sd[i]->scsi3addr);
|
|
}
|
|
|
|
/* Don't notify scsi mid layer of any changes the first time through
|
|
* (or if there are no changes) scsi_scan_host will do it later the
|
|
* first time through.
|
|
*/
|
|
if (hostno == -1 || !changes)
|
|
goto free_and_out;
|
|
|
|
sh = h->scsi_host;
|
|
/* Notify scsi mid layer of any removed devices */
|
|
for (i = 0; i < nremoved; i++) {
|
|
struct scsi_device *sdev =
|
|
scsi_device_lookup(sh, removed[i]->bus,
|
|
removed[i]->target, removed[i]->lun);
|
|
if (sdev != NULL) {
|
|
scsi_remove_device(sdev);
|
|
scsi_device_put(sdev);
|
|
} else {
|
|
/* We don't expect to get here.
|
|
* future cmds to this device will get selection
|
|
* timeout as if the device was gone.
|
|
*/
|
|
dev_warn(&h->pdev->dev, "didn't find c%db%dt%dl%d "
|
|
" for removal.", hostno, removed[i]->bus,
|
|
removed[i]->target, removed[i]->lun);
|
|
}
|
|
kfree(removed[i]);
|
|
removed[i] = NULL;
|
|
}
|
|
|
|
/* Notify scsi mid layer of any added devices */
|
|
for (i = 0; i < nadded; i++) {
|
|
if (scsi_add_device(sh, added[i]->bus,
|
|
added[i]->target, added[i]->lun) == 0)
|
|
continue;
|
|
dev_warn(&h->pdev->dev, "scsi_add_device c%db%dt%dl%d failed, "
|
|
"device not added.\n", hostno, added[i]->bus,
|
|
added[i]->target, added[i]->lun);
|
|
/* now we have to remove it from h->dev,
|
|
* since it didn't get added to scsi mid layer
|
|
*/
|
|
fixup_botched_add(h, added[i]);
|
|
}
|
|
|
|
free_and_out:
|
|
kfree(added);
|
|
kfree(removed);
|
|
}
|
|
|
|
/*
|
|
* Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t *
|
|
* Assume's h->devlock is held.
|
|
*/
|
|
static struct hpsa_scsi_dev_t *lookup_hpsa_scsi_dev(struct ctlr_info *h,
|
|
int bus, int target, int lun)
|
|
{
|
|
int i;
|
|
struct hpsa_scsi_dev_t *sd;
|
|
|
|
for (i = 0; i < h->ndevices; i++) {
|
|
sd = h->dev[i];
|
|
if (sd->bus == bus && sd->target == target && sd->lun == lun)
|
|
return sd;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* link sdev->hostdata to our per-device structure. */
|
|
static int hpsa_slave_alloc(struct scsi_device *sdev)
|
|
{
|
|
struct hpsa_scsi_dev_t *sd;
|
|
unsigned long flags;
|
|
struct ctlr_info *h;
|
|
|
|
h = sdev_to_hba(sdev);
|
|
spin_lock_irqsave(&h->devlock, flags);
|
|
sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),
|
|
sdev_id(sdev), sdev->lun);
|
|
if (sd != NULL)
|
|
sdev->hostdata = sd;
|
|
spin_unlock_irqrestore(&h->devlock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static void hpsa_slave_destroy(struct scsi_device *sdev)
|
|
{
|
|
/* nothing to do. */
|
|
}
|
|
|
|
static void hpsa_free_sg_chain_blocks(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
|
|
if (!h->cmd_sg_list)
|
|
return;
|
|
for (i = 0; i < h->nr_cmds; i++) {
|
|
kfree(h->cmd_sg_list[i]);
|
|
h->cmd_sg_list[i] = NULL;
|
|
}
|
|
kfree(h->cmd_sg_list);
|
|
h->cmd_sg_list = NULL;
|
|
}
|
|
|
|
static int hpsa_allocate_sg_chain_blocks(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
|
|
if (h->chainsize <= 0)
|
|
return 0;
|
|
|
|
h->cmd_sg_list = kzalloc(sizeof(*h->cmd_sg_list) * h->nr_cmds,
|
|
GFP_KERNEL);
|
|
if (!h->cmd_sg_list)
|
|
return -ENOMEM;
|
|
for (i = 0; i < h->nr_cmds; i++) {
|
|
h->cmd_sg_list[i] = kmalloc(sizeof(*h->cmd_sg_list[i]) *
|
|
h->chainsize, GFP_KERNEL);
|
|
if (!h->cmd_sg_list[i])
|
|
goto clean;
|
|
}
|
|
return 0;
|
|
|
|
clean:
|
|
hpsa_free_sg_chain_blocks(h);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int hpsa_map_sg_chain_block(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct SGDescriptor *chain_sg, *chain_block;
|
|
u64 temp64;
|
|
u32 chain_len;
|
|
|
|
chain_sg = &c->SG[h->max_cmd_sg_entries - 1];
|
|
chain_block = h->cmd_sg_list[c->cmdindex];
|
|
chain_sg->Ext = cpu_to_le32(HPSA_SG_CHAIN);
|
|
chain_len = sizeof(*chain_sg) *
|
|
(c->Header.SGTotal - h->max_cmd_sg_entries);
|
|
chain_sg->Len = cpu_to_le32(chain_len);
|
|
temp64 = pci_map_single(h->pdev, chain_block, chain_len,
|
|
PCI_DMA_TODEVICE);
|
|
if (dma_mapping_error(&h->pdev->dev, temp64)) {
|
|
/* prevent subsequent unmapping */
|
|
chain_sg->Addr = cpu_to_le64(0);
|
|
return -1;
|
|
}
|
|
chain_sg->Addr = cpu_to_le64(temp64);
|
|
return 0;
|
|
}
|
|
|
|
static void hpsa_unmap_sg_chain_block(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct SGDescriptor *chain_sg;
|
|
|
|
if (le16_to_cpu(c->Header.SGTotal) <= h->max_cmd_sg_entries)
|
|
return;
|
|
|
|
chain_sg = &c->SG[h->max_cmd_sg_entries - 1];
|
|
pci_unmap_single(h->pdev, le64_to_cpu(chain_sg->Addr),
|
|
le32_to_cpu(chain_sg->Len), PCI_DMA_TODEVICE);
|
|
}
|
|
|
|
|
|
/* Decode the various types of errors on ioaccel2 path.
|
|
* Return 1 for any error that should generate a RAID path retry.
|
|
* Return 0 for errors that don't require a RAID path retry.
|
|
*/
|
|
static int handle_ioaccel_mode2_error(struct ctlr_info *h,
|
|
struct CommandList *c,
|
|
struct scsi_cmnd *cmd,
|
|
struct io_accel2_cmd *c2)
|
|
{
|
|
int data_len;
|
|
int retry = 0;
|
|
|
|
switch (c2->error_data.serv_response) {
|
|
case IOACCEL2_SERV_RESPONSE_COMPLETE:
|
|
switch (c2->error_data.status) {
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_GOOD:
|
|
break;
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: task complete with check condition.\n",
|
|
"HP SSD Smart Path");
|
|
cmd->result |= SAM_STAT_CHECK_CONDITION;
|
|
if (c2->error_data.data_present !=
|
|
IOACCEL2_SENSE_DATA_PRESENT) {
|
|
memset(cmd->sense_buffer, 0,
|
|
SCSI_SENSE_BUFFERSIZE);
|
|
break;
|
|
}
|
|
/* copy the sense data */
|
|
data_len = c2->error_data.sense_data_len;
|
|
if (data_len > SCSI_SENSE_BUFFERSIZE)
|
|
data_len = SCSI_SENSE_BUFFERSIZE;
|
|
if (data_len > sizeof(c2->error_data.sense_data_buff))
|
|
data_len =
|
|
sizeof(c2->error_data.sense_data_buff);
|
|
memcpy(cmd->sense_buffer,
|
|
c2->error_data.sense_data_buff, data_len);
|
|
retry = 1;
|
|
break;
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_BUSY:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: task complete with BUSY status.\n",
|
|
"HP SSD Smart Path");
|
|
retry = 1;
|
|
break;
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: task complete with reservation conflict.\n",
|
|
"HP SSD Smart Path");
|
|
retry = 1;
|
|
break;
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL:
|
|
/* Make scsi midlayer do unlimited retries */
|
|
cmd->result = DID_IMM_RETRY << 16;
|
|
break;
|
|
case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: task complete with aborted status.\n",
|
|
"HP SSD Smart Path");
|
|
retry = 1;
|
|
break;
|
|
default:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: task complete with unrecognized status: 0x%02x\n",
|
|
"HP SSD Smart Path", c2->error_data.status);
|
|
retry = 1;
|
|
break;
|
|
}
|
|
break;
|
|
case IOACCEL2_SERV_RESPONSE_FAILURE:
|
|
/* don't expect to get here. */
|
|
dev_warn(&h->pdev->dev,
|
|
"unexpected delivery or target failure, status = 0x%02x\n",
|
|
c2->error_data.status);
|
|
retry = 1;
|
|
break;
|
|
case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE:
|
|
break;
|
|
case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS:
|
|
break;
|
|
case IOACCEL2_SERV_RESPONSE_TMF_REJECTED:
|
|
dev_warn(&h->pdev->dev, "task management function rejected.\n");
|
|
retry = 1;
|
|
break;
|
|
case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN:
|
|
dev_warn(&h->pdev->dev, "task management function invalid LUN\n");
|
|
break;
|
|
default:
|
|
dev_warn(&h->pdev->dev,
|
|
"%s: Unrecognized server response: 0x%02x\n",
|
|
"HP SSD Smart Path",
|
|
c2->error_data.serv_response);
|
|
retry = 1;
|
|
break;
|
|
}
|
|
|
|
return retry; /* retry on raid path? */
|
|
}
|
|
|
|
static void process_ioaccel2_completion(struct ctlr_info *h,
|
|
struct CommandList *c, struct scsi_cmnd *cmd,
|
|
struct hpsa_scsi_dev_t *dev)
|
|
{
|
|
struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
|
|
int raid_retry = 0;
|
|
|
|
/* check for good status */
|
|
if (likely(c2->error_data.serv_response == 0 &&
|
|
c2->error_data.status == 0)) {
|
|
cmd_free(h, c);
|
|
cmd->scsi_done(cmd);
|
|
return;
|
|
}
|
|
|
|
/* Any RAID offload error results in retry which will use
|
|
* the normal I/O path so the controller can handle whatever's
|
|
* wrong.
|
|
*/
|
|
if (is_logical_dev_addr_mode(dev->scsi3addr) &&
|
|
c2->error_data.serv_response ==
|
|
IOACCEL2_SERV_RESPONSE_FAILURE) {
|
|
dev->offload_enabled = 0;
|
|
h->drv_req_rescan = 1; /* schedule controller for a rescan */
|
|
cmd->result = DID_SOFT_ERROR << 16;
|
|
cmd_free(h, c);
|
|
cmd->scsi_done(cmd);
|
|
return;
|
|
}
|
|
raid_retry = handle_ioaccel_mode2_error(h, c, cmd, c2);
|
|
/* If error found, disable Smart Path, schedule a rescan,
|
|
* and force a retry on the standard path.
|
|
*/
|
|
if (raid_retry) {
|
|
dev_warn(&h->pdev->dev, "%s: Retrying on standard path.\n",
|
|
"HP SSD Smart Path");
|
|
dev->offload_enabled = 0; /* Disable Smart Path */
|
|
h->drv_req_rescan = 1; /* schedule controller rescan */
|
|
cmd->result = DID_SOFT_ERROR << 16;
|
|
}
|
|
cmd_free(h, c);
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
|
|
static void complete_scsi_command(struct CommandList *cp)
|
|
{
|
|
struct scsi_cmnd *cmd;
|
|
struct ctlr_info *h;
|
|
struct ErrorInfo *ei;
|
|
struct hpsa_scsi_dev_t *dev;
|
|
|
|
unsigned char sense_key;
|
|
unsigned char asc; /* additional sense code */
|
|
unsigned char ascq; /* additional sense code qualifier */
|
|
unsigned long sense_data_size;
|
|
|
|
ei = cp->err_info;
|
|
cmd = (struct scsi_cmnd *) cp->scsi_cmd;
|
|
h = cp->h;
|
|
dev = cmd->device->hostdata;
|
|
|
|
scsi_dma_unmap(cmd); /* undo the DMA mappings */
|
|
if ((cp->cmd_type == CMD_SCSI) &&
|
|
(cp->Header.SGTotal > h->max_cmd_sg_entries))
|
|
hpsa_unmap_sg_chain_block(h, cp);
|
|
|
|
cmd->result = (DID_OK << 16); /* host byte */
|
|
cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
|
|
|
|
if (cp->cmd_type == CMD_IOACCEL2)
|
|
return process_ioaccel2_completion(h, cp, cmd, dev);
|
|
|
|
cmd->result |= ei->ScsiStatus;
|
|
|
|
scsi_set_resid(cmd, ei->ResidualCnt);
|
|
if (ei->CommandStatus == 0) {
|
|
cmd_free(h, cp);
|
|
cmd->scsi_done(cmd);
|
|
return;
|
|
}
|
|
|
|
/* copy the sense data */
|
|
if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo))
|
|
sense_data_size = SCSI_SENSE_BUFFERSIZE;
|
|
else
|
|
sense_data_size = sizeof(ei->SenseInfo);
|
|
if (ei->SenseLen < sense_data_size)
|
|
sense_data_size = ei->SenseLen;
|
|
|
|
memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size);
|
|
|
|
/* For I/O accelerator commands, copy over some fields to the normal
|
|
* CISS header used below for error handling.
|
|
*/
|
|
if (cp->cmd_type == CMD_IOACCEL1) {
|
|
struct io_accel1_cmd *c = &h->ioaccel_cmd_pool[cp->cmdindex];
|
|
cp->Header.SGList = cp->Header.SGTotal = scsi_sg_count(cmd);
|
|
cp->Request.CDBLen = c->io_flags & IOACCEL1_IOFLAGS_CDBLEN_MASK;
|
|
cp->Header.tag = c->tag;
|
|
memcpy(cp->Header.LUN.LunAddrBytes, c->CISS_LUN, 8);
|
|
memcpy(cp->Request.CDB, c->CDB, cp->Request.CDBLen);
|
|
|
|
/* Any RAID offload error results in retry which will use
|
|
* the normal I/O path so the controller can handle whatever's
|
|
* wrong.
|
|
*/
|
|
if (is_logical_dev_addr_mode(dev->scsi3addr)) {
|
|
if (ei->CommandStatus == CMD_IOACCEL_DISABLED)
|
|
dev->offload_enabled = 0;
|
|
cmd->result = DID_SOFT_ERROR << 16;
|
|
cmd_free(h, cp);
|
|
cmd->scsi_done(cmd);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* an error has occurred */
|
|
switch (ei->CommandStatus) {
|
|
|
|
case CMD_TARGET_STATUS:
|
|
if (ei->ScsiStatus) {
|
|
/* Get sense key */
|
|
sense_key = 0xf & ei->SenseInfo[2];
|
|
/* Get additional sense code */
|
|
asc = ei->SenseInfo[12];
|
|
/* Get addition sense code qualifier */
|
|
ascq = ei->SenseInfo[13];
|
|
}
|
|
if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) {
|
|
if (sense_key == ABORTED_COMMAND) {
|
|
cmd->result |= DID_SOFT_ERROR << 16;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
/* Problem was not a check condition
|
|
* Pass it up to the upper layers...
|
|
*/
|
|
if (ei->ScsiStatus) {
|
|
dev_warn(&h->pdev->dev, "cp %p has status 0x%x "
|
|
"Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
|
|
"Returning result: 0x%x\n",
|
|
cp, ei->ScsiStatus,
|
|
sense_key, asc, ascq,
|
|
cmd->result);
|
|
} else { /* scsi status is zero??? How??? */
|
|
dev_warn(&h->pdev->dev, "cp %p SCSI status was 0. "
|
|
"Returning no connection.\n", cp),
|
|
|
|
/* Ordinarily, this case should never happen,
|
|
* but there is a bug in some released firmware
|
|
* revisions that allows it to happen if, for
|
|
* example, a 4100 backplane loses power and
|
|
* the tape drive is in it. We assume that
|
|
* it's a fatal error of some kind because we
|
|
* can't show that it wasn't. We will make it
|
|
* look like selection timeout since that is
|
|
* the most common reason for this to occur,
|
|
* and it's severe enough.
|
|
*/
|
|
|
|
cmd->result = DID_NO_CONNECT << 16;
|
|
}
|
|
break;
|
|
|
|
case CMD_DATA_UNDERRUN: /* let mid layer handle it. */
|
|
break;
|
|
case CMD_DATA_OVERRUN:
|
|
dev_warn(&h->pdev->dev, "cp %p has"
|
|
" completed with data overrun "
|
|
"reported\n", cp);
|
|
break;
|
|
case CMD_INVALID: {
|
|
/* print_bytes(cp, sizeof(*cp), 1, 0);
|
|
print_cmd(cp); */
|
|
/* We get CMD_INVALID if you address a non-existent device
|
|
* instead of a selection timeout (no response). You will
|
|
* see this if you yank out a drive, then try to access it.
|
|
* This is kind of a shame because it means that any other
|
|
* CMD_INVALID (e.g. driver bug) will get interpreted as a
|
|
* missing target. */
|
|
cmd->result = DID_NO_CONNECT << 16;
|
|
}
|
|
break;
|
|
case CMD_PROTOCOL_ERR:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p has "
|
|
"protocol error\n", cp);
|
|
break;
|
|
case CMD_HARDWARE_ERR:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p had hardware error\n", cp);
|
|
break;
|
|
case CMD_CONNECTION_LOST:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p had connection lost\n", cp);
|
|
break;
|
|
case CMD_ABORTED:
|
|
cmd->result = DID_ABORT << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p was aborted with status 0x%x\n",
|
|
cp, ei->ScsiStatus);
|
|
break;
|
|
case CMD_ABORT_FAILED:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p reports abort failed\n", cp);
|
|
break;
|
|
case CMD_UNSOLICITED_ABORT:
|
|
cmd->result = DID_SOFT_ERROR << 16; /* retry the command */
|
|
dev_warn(&h->pdev->dev, "cp %p aborted due to an unsolicited "
|
|
"abort\n", cp);
|
|
break;
|
|
case CMD_TIMEOUT:
|
|
cmd->result = DID_TIME_OUT << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p timedout\n", cp);
|
|
break;
|
|
case CMD_UNABORTABLE:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "Command unabortable\n");
|
|
break;
|
|
case CMD_IOACCEL_DISABLED:
|
|
/* This only handles the direct pass-through case since RAID
|
|
* offload is handled above. Just attempt a retry.
|
|
*/
|
|
cmd->result = DID_SOFT_ERROR << 16;
|
|
dev_warn(&h->pdev->dev,
|
|
"cp %p had HP SSD Smart Path error\n", cp);
|
|
break;
|
|
default:
|
|
cmd->result = DID_ERROR << 16;
|
|
dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n",
|
|
cp, ei->CommandStatus);
|
|
}
|
|
cmd_free(h, cp);
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
|
|
static void hpsa_pci_unmap(struct pci_dev *pdev,
|
|
struct CommandList *c, int sg_used, int data_direction)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sg_used; i++)
|
|
pci_unmap_single(pdev, (dma_addr_t) le64_to_cpu(c->SG[i].Addr),
|
|
le32_to_cpu(c->SG[i].Len),
|
|
data_direction);
|
|
}
|
|
|
|
static int hpsa_map_one(struct pci_dev *pdev,
|
|
struct CommandList *cp,
|
|
unsigned char *buf,
|
|
size_t buflen,
|
|
int data_direction)
|
|
{
|
|
u64 addr64;
|
|
|
|
if (buflen == 0 || data_direction == PCI_DMA_NONE) {
|
|
cp->Header.SGList = 0;
|
|
cp->Header.SGTotal = cpu_to_le16(0);
|
|
return 0;
|
|
}
|
|
|
|
addr64 = pci_map_single(pdev, buf, buflen, data_direction);
|
|
if (dma_mapping_error(&pdev->dev, addr64)) {
|
|
/* Prevent subsequent unmap of something never mapped */
|
|
cp->Header.SGList = 0;
|
|
cp->Header.SGTotal = cpu_to_le16(0);
|
|
return -1;
|
|
}
|
|
cp->SG[0].Addr = cpu_to_le64(addr64);
|
|
cp->SG[0].Len = cpu_to_le32(buflen);
|
|
cp->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* we are not chaining */
|
|
cp->Header.SGList = 1; /* no. SGs contig in this cmd */
|
|
cp->Header.SGTotal = cpu_to_le16(1); /* total sgs in cmd list */
|
|
return 0;
|
|
}
|
|
|
|
static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
DECLARE_COMPLETION_ONSTACK(wait);
|
|
|
|
c->waiting = &wait;
|
|
enqueue_cmd_and_start_io(h, c);
|
|
wait_for_completion(&wait);
|
|
}
|
|
|
|
static u32 lockup_detected(struct ctlr_info *h)
|
|
{
|
|
int cpu;
|
|
u32 rc, *lockup_detected;
|
|
|
|
cpu = get_cpu();
|
|
lockup_detected = per_cpu_ptr(h->lockup_detected, cpu);
|
|
rc = *lockup_detected;
|
|
put_cpu();
|
|
return rc;
|
|
}
|
|
|
|
static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
/* If controller lockup detected, fake a hardware error. */
|
|
if (unlikely(lockup_detected(h)))
|
|
c->err_info->CommandStatus = CMD_HARDWARE_ERR;
|
|
else
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
}
|
|
|
|
#define MAX_DRIVER_CMD_RETRIES 25
|
|
static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
|
|
struct CommandList *c, int data_direction)
|
|
{
|
|
int backoff_time = 10, retry_count = 0;
|
|
|
|
do {
|
|
memset(c->err_info, 0, sizeof(*c->err_info));
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
retry_count++;
|
|
if (retry_count > 3) {
|
|
msleep(backoff_time);
|
|
if (backoff_time < 1000)
|
|
backoff_time *= 2;
|
|
}
|
|
} while ((check_for_unit_attention(h, c) ||
|
|
check_for_busy(h, c)) &&
|
|
retry_count <= MAX_DRIVER_CMD_RETRIES);
|
|
hpsa_pci_unmap(h->pdev, c, 1, data_direction);
|
|
}
|
|
|
|
static void hpsa_print_cmd(struct ctlr_info *h, char *txt,
|
|
struct CommandList *c)
|
|
{
|
|
const u8 *cdb = c->Request.CDB;
|
|
const u8 *lun = c->Header.LUN.LunAddrBytes;
|
|
|
|
dev_warn(&h->pdev->dev, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
|
|
" CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
txt, lun[0], lun[1], lun[2], lun[3],
|
|
lun[4], lun[5], lun[6], lun[7],
|
|
cdb[0], cdb[1], cdb[2], cdb[3],
|
|
cdb[4], cdb[5], cdb[6], cdb[7],
|
|
cdb[8], cdb[9], cdb[10], cdb[11],
|
|
cdb[12], cdb[13], cdb[14], cdb[15]);
|
|
}
|
|
|
|
static void hpsa_scsi_interpret_error(struct ctlr_info *h,
|
|
struct CommandList *cp)
|
|
{
|
|
const struct ErrorInfo *ei = cp->err_info;
|
|
struct device *d = &cp->h->pdev->dev;
|
|
const u8 *sd = ei->SenseInfo;
|
|
|
|
switch (ei->CommandStatus) {
|
|
case CMD_TARGET_STATUS:
|
|
hpsa_print_cmd(h, "SCSI status", cp);
|
|
if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION)
|
|
dev_warn(d, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
|
|
sd[2] & 0x0f, sd[12], sd[13]);
|
|
else
|
|
dev_warn(d, "SCSI Status = %02x\n", ei->ScsiStatus);
|
|
if (ei->ScsiStatus == 0)
|
|
dev_warn(d, "SCSI status is abnormally zero. "
|
|
"(probably indicates selection timeout "
|
|
"reported incorrectly due to a known "
|
|
"firmware bug, circa July, 2001.)\n");
|
|
break;
|
|
case CMD_DATA_UNDERRUN: /* let mid layer handle it. */
|
|
break;
|
|
case CMD_DATA_OVERRUN:
|
|
hpsa_print_cmd(h, "overrun condition", cp);
|
|
break;
|
|
case CMD_INVALID: {
|
|
/* controller unfortunately reports SCSI passthru's
|
|
* to non-existent targets as invalid commands.
|
|
*/
|
|
hpsa_print_cmd(h, "invalid command", cp);
|
|
dev_warn(d, "probably means device no longer present\n");
|
|
}
|
|
break;
|
|
case CMD_PROTOCOL_ERR:
|
|
hpsa_print_cmd(h, "protocol error", cp);
|
|
break;
|
|
case CMD_HARDWARE_ERR:
|
|
hpsa_print_cmd(h, "hardware error", cp);
|
|
break;
|
|
case CMD_CONNECTION_LOST:
|
|
hpsa_print_cmd(h, "connection lost", cp);
|
|
break;
|
|
case CMD_ABORTED:
|
|
hpsa_print_cmd(h, "aborted", cp);
|
|
break;
|
|
case CMD_ABORT_FAILED:
|
|
hpsa_print_cmd(h, "abort failed", cp);
|
|
break;
|
|
case CMD_UNSOLICITED_ABORT:
|
|
hpsa_print_cmd(h, "unsolicited abort", cp);
|
|
break;
|
|
case CMD_TIMEOUT:
|
|
hpsa_print_cmd(h, "timed out", cp);
|
|
break;
|
|
case CMD_UNABORTABLE:
|
|
hpsa_print_cmd(h, "unabortable", cp);
|
|
break;
|
|
default:
|
|
hpsa_print_cmd(h, "unknown status", cp);
|
|
dev_warn(d, "Unknown command status %x\n",
|
|
ei->CommandStatus);
|
|
}
|
|
}
|
|
|
|
static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
u16 page, unsigned char *buf,
|
|
unsigned char bufsize)
|
|
{
|
|
int rc = IO_OK;
|
|
struct CommandList *c;
|
|
struct ErrorInfo *ei;
|
|
|
|
c = cmd_special_alloc(h);
|
|
|
|
if (c == NULL) { /* trouble... */
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize,
|
|
page, scsi3addr, TYPE_CMD)) {
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
|
|
ei = c->err_info;
|
|
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
|
|
hpsa_scsi_interpret_error(h, c);
|
|
rc = -1;
|
|
}
|
|
out:
|
|
cmd_special_free(h, c);
|
|
return rc;
|
|
}
|
|
|
|
static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, unsigned char page,
|
|
struct bmic_controller_parameters *buf, size_t bufsize)
|
|
{
|
|
int rc = IO_OK;
|
|
struct CommandList *c;
|
|
struct ErrorInfo *ei;
|
|
|
|
c = cmd_special_alloc(h);
|
|
|
|
if (c == NULL) { /* trouble... */
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (fill_cmd(c, BMIC_SENSE_CONTROLLER_PARAMETERS, h, buf, bufsize,
|
|
page, scsi3addr, TYPE_CMD)) {
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
|
|
ei = c->err_info;
|
|
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
|
|
hpsa_scsi_interpret_error(h, c);
|
|
rc = -1;
|
|
}
|
|
out:
|
|
cmd_special_free(h, c);
|
|
return rc;
|
|
}
|
|
|
|
static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
u8 reset_type)
|
|
{
|
|
int rc = IO_OK;
|
|
struct CommandList *c;
|
|
struct ErrorInfo *ei;
|
|
|
|
c = cmd_special_alloc(h);
|
|
|
|
if (c == NULL) { /* trouble... */
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* fill_cmd can't fail here, no data buffer to map. */
|
|
(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
|
|
scsi3addr, TYPE_MSG);
|
|
c->Request.CDB[1] = reset_type; /* fill_cmd defaults to LUN reset */
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
/* no unmap needed here because no data xfer. */
|
|
|
|
ei = c->err_info;
|
|
if (ei->CommandStatus != 0) {
|
|
hpsa_scsi_interpret_error(h, c);
|
|
rc = -1;
|
|
}
|
|
cmd_special_free(h, c);
|
|
return rc;
|
|
}
|
|
|
|
static void hpsa_get_raid_level(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, unsigned char *raid_level)
|
|
{
|
|
int rc;
|
|
unsigned char *buf;
|
|
|
|
*raid_level = RAID_UNKNOWN;
|
|
buf = kzalloc(64, GFP_KERNEL);
|
|
if (!buf)
|
|
return;
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0xC1, buf, 64);
|
|
if (rc == 0)
|
|
*raid_level = buf[8];
|
|
if (*raid_level > RAID_UNKNOWN)
|
|
*raid_level = RAID_UNKNOWN;
|
|
kfree(buf);
|
|
return;
|
|
}
|
|
|
|
#define HPSA_MAP_DEBUG
|
|
#ifdef HPSA_MAP_DEBUG
|
|
static void hpsa_debug_map_buff(struct ctlr_info *h, int rc,
|
|
struct raid_map_data *map_buff)
|
|
{
|
|
struct raid_map_disk_data *dd = &map_buff->data[0];
|
|
int map, row, col;
|
|
u16 map_cnt, row_cnt, disks_per_row;
|
|
|
|
if (rc != 0)
|
|
return;
|
|
|
|
/* Show details only if debugging has been activated. */
|
|
if (h->raid_offload_debug < 2)
|
|
return;
|
|
|
|
dev_info(&h->pdev->dev, "structure_size = %u\n",
|
|
le32_to_cpu(map_buff->structure_size));
|
|
dev_info(&h->pdev->dev, "volume_blk_size = %u\n",
|
|
le32_to_cpu(map_buff->volume_blk_size));
|
|
dev_info(&h->pdev->dev, "volume_blk_cnt = 0x%llx\n",
|
|
le64_to_cpu(map_buff->volume_blk_cnt));
|
|
dev_info(&h->pdev->dev, "physicalBlockShift = %u\n",
|
|
map_buff->phys_blk_shift);
|
|
dev_info(&h->pdev->dev, "parity_rotation_shift = %u\n",
|
|
map_buff->parity_rotation_shift);
|
|
dev_info(&h->pdev->dev, "strip_size = %u\n",
|
|
le16_to_cpu(map_buff->strip_size));
|
|
dev_info(&h->pdev->dev, "disk_starting_blk = 0x%llx\n",
|
|
le64_to_cpu(map_buff->disk_starting_blk));
|
|
dev_info(&h->pdev->dev, "disk_blk_cnt = 0x%llx\n",
|
|
le64_to_cpu(map_buff->disk_blk_cnt));
|
|
dev_info(&h->pdev->dev, "data_disks_per_row = %u\n",
|
|
le16_to_cpu(map_buff->data_disks_per_row));
|
|
dev_info(&h->pdev->dev, "metadata_disks_per_row = %u\n",
|
|
le16_to_cpu(map_buff->metadata_disks_per_row));
|
|
dev_info(&h->pdev->dev, "row_cnt = %u\n",
|
|
le16_to_cpu(map_buff->row_cnt));
|
|
dev_info(&h->pdev->dev, "layout_map_count = %u\n",
|
|
le16_to_cpu(map_buff->layout_map_count));
|
|
dev_info(&h->pdev->dev, "flags = %u\n",
|
|
le16_to_cpu(map_buff->flags));
|
|
if (map_buff->flags & RAID_MAP_FLAG_ENCRYPT_ON)
|
|
dev_info(&h->pdev->dev, "encrypytion = ON\n");
|
|
else
|
|
dev_info(&h->pdev->dev, "encrypytion = OFF\n");
|
|
dev_info(&h->pdev->dev, "dekindex = %u\n",
|
|
le16_to_cpu(map_buff->dekindex));
|
|
|
|
map_cnt = le16_to_cpu(map_buff->layout_map_count);
|
|
for (map = 0; map < map_cnt; map++) {
|
|
dev_info(&h->pdev->dev, "Map%u:\n", map);
|
|
row_cnt = le16_to_cpu(map_buff->row_cnt);
|
|
for (row = 0; row < row_cnt; row++) {
|
|
dev_info(&h->pdev->dev, " Row%u:\n", row);
|
|
disks_per_row =
|
|
le16_to_cpu(map_buff->data_disks_per_row);
|
|
for (col = 0; col < disks_per_row; col++, dd++)
|
|
dev_info(&h->pdev->dev,
|
|
" D%02u: h=0x%04x xor=%u,%u\n",
|
|
col, dd->ioaccel_handle,
|
|
dd->xor_mult[0], dd->xor_mult[1]);
|
|
disks_per_row =
|
|
le16_to_cpu(map_buff->metadata_disks_per_row);
|
|
for (col = 0; col < disks_per_row; col++, dd++)
|
|
dev_info(&h->pdev->dev,
|
|
" M%02u: h=0x%04x xor=%u,%u\n",
|
|
col, dd->ioaccel_handle,
|
|
dd->xor_mult[0], dd->xor_mult[1]);
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
static void hpsa_debug_map_buff(__attribute__((unused)) struct ctlr_info *h,
|
|
__attribute__((unused)) int rc,
|
|
__attribute__((unused)) struct raid_map_data *map_buff)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static int hpsa_get_raid_map(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device)
|
|
{
|
|
int rc = 0;
|
|
struct CommandList *c;
|
|
struct ErrorInfo *ei;
|
|
|
|
c = cmd_special_alloc(h);
|
|
if (c == NULL) {
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -ENOMEM;
|
|
}
|
|
if (fill_cmd(c, HPSA_GET_RAID_MAP, h, &this_device->raid_map,
|
|
sizeof(this_device->raid_map), 0,
|
|
scsi3addr, TYPE_CMD)) {
|
|
dev_warn(&h->pdev->dev, "Out of memory in hpsa_get_raid_map()\n");
|
|
cmd_special_free(h, c);
|
|
return -ENOMEM;
|
|
}
|
|
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
|
|
ei = c->err_info;
|
|
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
|
|
hpsa_scsi_interpret_error(h, c);
|
|
cmd_special_free(h, c);
|
|
return -1;
|
|
}
|
|
cmd_special_free(h, c);
|
|
|
|
/* @todo in the future, dynamically allocate RAID map memory */
|
|
if (le32_to_cpu(this_device->raid_map.structure_size) >
|
|
sizeof(this_device->raid_map)) {
|
|
dev_warn(&h->pdev->dev, "RAID map size is too large!\n");
|
|
rc = -1;
|
|
}
|
|
hpsa_debug_map_buff(h, rc, &this_device->raid_map);
|
|
return rc;
|
|
}
|
|
|
|
static int hpsa_vpd_page_supported(struct ctlr_info *h,
|
|
unsigned char scsi3addr[], u8 page)
|
|
{
|
|
int rc;
|
|
int i;
|
|
int pages;
|
|
unsigned char *buf, bufsize;
|
|
|
|
buf = kzalloc(256, GFP_KERNEL);
|
|
if (!buf)
|
|
return 0;
|
|
|
|
/* Get the size of the page list first */
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr,
|
|
VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES,
|
|
buf, HPSA_VPD_HEADER_SZ);
|
|
if (rc != 0)
|
|
goto exit_unsupported;
|
|
pages = buf[3];
|
|
if ((pages + HPSA_VPD_HEADER_SZ) <= 255)
|
|
bufsize = pages + HPSA_VPD_HEADER_SZ;
|
|
else
|
|
bufsize = 255;
|
|
|
|
/* Get the whole VPD page list */
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr,
|
|
VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES,
|
|
buf, bufsize);
|
|
if (rc != 0)
|
|
goto exit_unsupported;
|
|
|
|
pages = buf[3];
|
|
for (i = 1; i <= pages; i++)
|
|
if (buf[3 + i] == page)
|
|
goto exit_supported;
|
|
exit_unsupported:
|
|
kfree(buf);
|
|
return 0;
|
|
exit_supported:
|
|
kfree(buf);
|
|
return 1;
|
|
}
|
|
|
|
static void hpsa_get_ioaccel_status(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device)
|
|
{
|
|
int rc;
|
|
unsigned char *buf;
|
|
u8 ioaccel_status;
|
|
|
|
this_device->offload_config = 0;
|
|
this_device->offload_enabled = 0;
|
|
|
|
buf = kzalloc(64, GFP_KERNEL);
|
|
if (!buf)
|
|
return;
|
|
if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_IOACCEL_STATUS))
|
|
goto out;
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr,
|
|
VPD_PAGE | HPSA_VPD_LV_IOACCEL_STATUS, buf, 64);
|
|
if (rc != 0)
|
|
goto out;
|
|
|
|
#define IOACCEL_STATUS_BYTE 4
|
|
#define OFFLOAD_CONFIGURED_BIT 0x01
|
|
#define OFFLOAD_ENABLED_BIT 0x02
|
|
ioaccel_status = buf[IOACCEL_STATUS_BYTE];
|
|
this_device->offload_config =
|
|
!!(ioaccel_status & OFFLOAD_CONFIGURED_BIT);
|
|
if (this_device->offload_config) {
|
|
this_device->offload_enabled =
|
|
!!(ioaccel_status & OFFLOAD_ENABLED_BIT);
|
|
if (hpsa_get_raid_map(h, scsi3addr, this_device))
|
|
this_device->offload_enabled = 0;
|
|
}
|
|
out:
|
|
kfree(buf);
|
|
return;
|
|
}
|
|
|
|
/* Get the device id from inquiry page 0x83 */
|
|
static int hpsa_get_device_id(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
unsigned char *device_id, int buflen)
|
|
{
|
|
int rc;
|
|
unsigned char *buf;
|
|
|
|
if (buflen > 16)
|
|
buflen = 16;
|
|
buf = kzalloc(64, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0x83, buf, 64);
|
|
if (rc == 0)
|
|
memcpy(device_id, &buf[8], buflen);
|
|
kfree(buf);
|
|
return rc != 0;
|
|
}
|
|
|
|
static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
|
|
struct ReportLUNdata *buf, int bufsize,
|
|
int extended_response)
|
|
{
|
|
int rc = IO_OK;
|
|
struct CommandList *c;
|
|
unsigned char scsi3addr[8];
|
|
struct ErrorInfo *ei;
|
|
|
|
c = cmd_special_alloc(h);
|
|
if (c == NULL) { /* trouble... */
|
|
dev_err(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -1;
|
|
}
|
|
/* address the controller */
|
|
memset(scsi3addr, 0, sizeof(scsi3addr));
|
|
if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
|
|
buf, bufsize, 0, scsi3addr, TYPE_CMD)) {
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
if (extended_response)
|
|
c->Request.CDB[1] = extended_response;
|
|
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
|
|
ei = c->err_info;
|
|
if (ei->CommandStatus != 0 &&
|
|
ei->CommandStatus != CMD_DATA_UNDERRUN) {
|
|
hpsa_scsi_interpret_error(h, c);
|
|
rc = -1;
|
|
} else {
|
|
if (buf->extended_response_flag != extended_response) {
|
|
dev_err(&h->pdev->dev,
|
|
"report luns requested format %u, got %u\n",
|
|
extended_response,
|
|
buf->extended_response_flag);
|
|
rc = -1;
|
|
}
|
|
}
|
|
out:
|
|
cmd_special_free(h, c);
|
|
return rc;
|
|
}
|
|
|
|
static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
|
|
struct ReportLUNdata *buf,
|
|
int bufsize, int extended_response)
|
|
{
|
|
return hpsa_scsi_do_report_luns(h, 0, buf, bufsize, extended_response);
|
|
}
|
|
|
|
static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info *h,
|
|
struct ReportLUNdata *buf, int bufsize)
|
|
{
|
|
return hpsa_scsi_do_report_luns(h, 1, buf, bufsize, 0);
|
|
}
|
|
|
|
static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t *device,
|
|
int bus, int target, int lun)
|
|
{
|
|
device->bus = bus;
|
|
device->target = target;
|
|
device->lun = lun;
|
|
}
|
|
|
|
/* Use VPD inquiry to get details of volume status */
|
|
static int hpsa_get_volume_status(struct ctlr_info *h,
|
|
unsigned char scsi3addr[])
|
|
{
|
|
int rc;
|
|
int status;
|
|
int size;
|
|
unsigned char *buf;
|
|
|
|
buf = kzalloc(64, GFP_KERNEL);
|
|
if (!buf)
|
|
return HPSA_VPD_LV_STATUS_UNSUPPORTED;
|
|
|
|
/* Does controller have VPD for logical volume status? */
|
|
if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_STATUS))
|
|
goto exit_failed;
|
|
|
|
/* Get the size of the VPD return buffer */
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS,
|
|
buf, HPSA_VPD_HEADER_SZ);
|
|
if (rc != 0)
|
|
goto exit_failed;
|
|
size = buf[3];
|
|
|
|
/* Now get the whole VPD buffer */
|
|
rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS,
|
|
buf, size + HPSA_VPD_HEADER_SZ);
|
|
if (rc != 0)
|
|
goto exit_failed;
|
|
status = buf[4]; /* status byte */
|
|
|
|
kfree(buf);
|
|
return status;
|
|
exit_failed:
|
|
kfree(buf);
|
|
return HPSA_VPD_LV_STATUS_UNSUPPORTED;
|
|
}
|
|
|
|
/* Determine offline status of a volume.
|
|
* Return either:
|
|
* 0 (not offline)
|
|
* 0xff (offline for unknown reasons)
|
|
* # (integer code indicating one of several NOT READY states
|
|
* describing why a volume is to be kept offline)
|
|
*/
|
|
static int hpsa_volume_offline(struct ctlr_info *h,
|
|
unsigned char scsi3addr[])
|
|
{
|
|
struct CommandList *c;
|
|
unsigned char *sense, sense_key, asc, ascq;
|
|
int ldstat = 0;
|
|
u16 cmd_status;
|
|
u8 scsi_status;
|
|
#define ASC_LUN_NOT_READY 0x04
|
|
#define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04
|
|
#define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
|
|
|
|
c = cmd_alloc(h);
|
|
if (!c)
|
|
return 0;
|
|
(void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD);
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
sense = c->err_info->SenseInfo;
|
|
sense_key = sense[2];
|
|
asc = sense[12];
|
|
ascq = sense[13];
|
|
cmd_status = c->err_info->CommandStatus;
|
|
scsi_status = c->err_info->ScsiStatus;
|
|
cmd_free(h, c);
|
|
/* Is the volume 'not ready'? */
|
|
if (cmd_status != CMD_TARGET_STATUS ||
|
|
scsi_status != SAM_STAT_CHECK_CONDITION ||
|
|
sense_key != NOT_READY ||
|
|
asc != ASC_LUN_NOT_READY) {
|
|
return 0;
|
|
}
|
|
|
|
/* Determine the reason for not ready state */
|
|
ldstat = hpsa_get_volume_status(h, scsi3addr);
|
|
|
|
/* Keep volume offline in certain cases: */
|
|
switch (ldstat) {
|
|
case HPSA_LV_UNDERGOING_ERASE:
|
|
case HPSA_LV_UNDERGOING_RPI:
|
|
case HPSA_LV_PENDING_RPI:
|
|
case HPSA_LV_ENCRYPTED_NO_KEY:
|
|
case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
|
|
case HPSA_LV_UNDERGOING_ENCRYPTION:
|
|
case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING:
|
|
case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
|
|
return ldstat;
|
|
case HPSA_VPD_LV_STATUS_UNSUPPORTED:
|
|
/* If VPD status page isn't available,
|
|
* use ASC/ASCQ to determine state
|
|
*/
|
|
if ((ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS) ||
|
|
(ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ))
|
|
return ldstat;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_update_device_info(struct ctlr_info *h,
|
|
unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device,
|
|
unsigned char *is_OBDR_device)
|
|
{
|
|
|
|
#define OBDR_SIG_OFFSET 43
|
|
#define OBDR_TAPE_SIG "$DR-10"
|
|
#define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1)
|
|
#define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN)
|
|
|
|
unsigned char *inq_buff;
|
|
unsigned char *obdr_sig;
|
|
|
|
inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
|
|
if (!inq_buff)
|
|
goto bail_out;
|
|
|
|
/* Do an inquiry to the device to see what it is. */
|
|
if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
|
|
(unsigned char) OBDR_TAPE_INQ_SIZE) != 0) {
|
|
/* Inquiry failed (msg printed already) */
|
|
dev_err(&h->pdev->dev,
|
|
"hpsa_update_device_info: inquiry failed\n");
|
|
goto bail_out;
|
|
}
|
|
|
|
this_device->devtype = (inq_buff[0] & 0x1f);
|
|
memcpy(this_device->scsi3addr, scsi3addr, 8);
|
|
memcpy(this_device->vendor, &inq_buff[8],
|
|
sizeof(this_device->vendor));
|
|
memcpy(this_device->model, &inq_buff[16],
|
|
sizeof(this_device->model));
|
|
memset(this_device->device_id, 0,
|
|
sizeof(this_device->device_id));
|
|
hpsa_get_device_id(h, scsi3addr, this_device->device_id,
|
|
sizeof(this_device->device_id));
|
|
|
|
if (this_device->devtype == TYPE_DISK &&
|
|
is_logical_dev_addr_mode(scsi3addr)) {
|
|
int volume_offline;
|
|
|
|
hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level);
|
|
if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC)
|
|
hpsa_get_ioaccel_status(h, scsi3addr, this_device);
|
|
volume_offline = hpsa_volume_offline(h, scsi3addr);
|
|
if (volume_offline < 0 || volume_offline > 0xff)
|
|
volume_offline = HPSA_VPD_LV_STATUS_UNSUPPORTED;
|
|
this_device->volume_offline = volume_offline & 0xff;
|
|
} else {
|
|
this_device->raid_level = RAID_UNKNOWN;
|
|
this_device->offload_config = 0;
|
|
this_device->offload_enabled = 0;
|
|
this_device->volume_offline = 0;
|
|
}
|
|
|
|
if (is_OBDR_device) {
|
|
/* See if this is a One-Button-Disaster-Recovery device
|
|
* by looking for "$DR-10" at offset 43 in inquiry data.
|
|
*/
|
|
obdr_sig = &inq_buff[OBDR_SIG_OFFSET];
|
|
*is_OBDR_device = (this_device->devtype == TYPE_ROM &&
|
|
strncmp(obdr_sig, OBDR_TAPE_SIG,
|
|
OBDR_SIG_LEN) == 0);
|
|
}
|
|
|
|
kfree(inq_buff);
|
|
return 0;
|
|
|
|
bail_out:
|
|
kfree(inq_buff);
|
|
return 1;
|
|
}
|
|
|
|
static unsigned char *ext_target_model[] = {
|
|
"MSA2012",
|
|
"MSA2024",
|
|
"MSA2312",
|
|
"MSA2324",
|
|
"P2000 G3 SAS",
|
|
"MSA 2040 SAS",
|
|
NULL,
|
|
};
|
|
|
|
static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; ext_target_model[i]; i++)
|
|
if (strncmp(device->model, ext_target_model[i],
|
|
strlen(ext_target_model[i])) == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Helper function to assign bus, target, lun mapping of devices.
|
|
* Puts non-external target logical volumes on bus 0, external target logical
|
|
* volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
|
|
* Logical drive target and lun are assigned at this time, but
|
|
* physical device lun and target assignment are deferred (assigned
|
|
* in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
|
|
*/
|
|
static void figure_bus_target_lun(struct ctlr_info *h,
|
|
u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device)
|
|
{
|
|
u32 lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
|
|
|
|
if (!is_logical_dev_addr_mode(lunaddrbytes)) {
|
|
/* physical device, target and lun filled in later */
|
|
if (is_hba_lunid(lunaddrbytes))
|
|
hpsa_set_bus_target_lun(device, 3, 0, lunid & 0x3fff);
|
|
else
|
|
/* defer target, lun assignment for physical devices */
|
|
hpsa_set_bus_target_lun(device, 2, -1, -1);
|
|
return;
|
|
}
|
|
/* It's a logical device */
|
|
if (is_ext_target(h, device)) {
|
|
/* external target way, put logicals on bus 1
|
|
* and match target/lun numbers box
|
|
* reports, other smart array, bus 0, target 0, match lunid
|
|
*/
|
|
hpsa_set_bus_target_lun(device,
|
|
1, (lunid >> 16) & 0x3fff, lunid & 0x00ff);
|
|
return;
|
|
}
|
|
hpsa_set_bus_target_lun(device, 0, 0, lunid & 0x3fff);
|
|
}
|
|
|
|
/*
|
|
* If there is no lun 0 on a target, linux won't find any devices.
|
|
* For the external targets (arrays), we have to manually detect the enclosure
|
|
* which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
|
|
* it for some reason. *tmpdevice is the target we're adding,
|
|
* this_device is a pointer into the current element of currentsd[]
|
|
* that we're building up in update_scsi_devices(), below.
|
|
* lunzerobits is a bitmap that tracks which targets already have a
|
|
* lun 0 assigned.
|
|
* Returns 1 if an enclosure was added, 0 if not.
|
|
*/
|
|
static int add_ext_target_dev(struct ctlr_info *h,
|
|
struct hpsa_scsi_dev_t *tmpdevice,
|
|
struct hpsa_scsi_dev_t *this_device, u8 *lunaddrbytes,
|
|
unsigned long lunzerobits[], int *n_ext_target_devs)
|
|
{
|
|
unsigned char scsi3addr[8];
|
|
|
|
if (test_bit(tmpdevice->target, lunzerobits))
|
|
return 0; /* There is already a lun 0 on this target. */
|
|
|
|
if (!is_logical_dev_addr_mode(lunaddrbytes))
|
|
return 0; /* It's the logical targets that may lack lun 0. */
|
|
|
|
if (!is_ext_target(h, tmpdevice))
|
|
return 0; /* Only external target devices have this problem. */
|
|
|
|
if (tmpdevice->lun == 0) /* if lun is 0, then we have a lun 0. */
|
|
return 0;
|
|
|
|
memset(scsi3addr, 0, 8);
|
|
scsi3addr[3] = tmpdevice->target;
|
|
if (is_hba_lunid(scsi3addr))
|
|
return 0; /* Don't add the RAID controller here. */
|
|
|
|
if (is_scsi_rev_5(h))
|
|
return 0; /* p1210m doesn't need to do this. */
|
|
|
|
if (*n_ext_target_devs >= MAX_EXT_TARGETS) {
|
|
dev_warn(&h->pdev->dev, "Maximum number of external "
|
|
"target devices exceeded. Check your hardware "
|
|
"configuration.");
|
|
return 0;
|
|
}
|
|
|
|
if (hpsa_update_device_info(h, scsi3addr, this_device, NULL))
|
|
return 0;
|
|
(*n_ext_target_devs)++;
|
|
hpsa_set_bus_target_lun(this_device,
|
|
tmpdevice->bus, tmpdevice->target, 0);
|
|
set_bit(tmpdevice->target, lunzerobits);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Get address of physical disk used for an ioaccel2 mode command:
|
|
* 1. Extract ioaccel2 handle from the command.
|
|
* 2. Find a matching ioaccel2 handle from list of physical disks.
|
|
* 3. Return:
|
|
* 1 and set scsi3addr to address of matching physical
|
|
* 0 if no matching physical disk was found.
|
|
*/
|
|
static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h,
|
|
struct CommandList *ioaccel2_cmd_to_abort, unsigned char *scsi3addr)
|
|
{
|
|
struct ReportExtendedLUNdata *physicals = NULL;
|
|
int responsesize = 24; /* size of physical extended response */
|
|
int extended = 2; /* flag forces reporting 'other dev info'. */
|
|
int reportsize = sizeof(*physicals) + HPSA_MAX_PHYS_LUN * responsesize;
|
|
u32 nphysicals = 0; /* number of reported physical devs */
|
|
int found = 0; /* found match (1) or not (0) */
|
|
u32 find; /* handle we need to match */
|
|
int i;
|
|
struct scsi_cmnd *scmd; /* scsi command within request being aborted */
|
|
struct hpsa_scsi_dev_t *d; /* device of request being aborted */
|
|
struct io_accel2_cmd *c2a; /* ioaccel2 command to abort */
|
|
u32 it_nexus; /* 4 byte device handle for the ioaccel2 cmd */
|
|
u32 scsi_nexus; /* 4 byte device handle for the ioaccel2 cmd */
|
|
|
|
if (ioaccel2_cmd_to_abort->cmd_type != CMD_IOACCEL2)
|
|
return 0; /* no match */
|
|
|
|
/* point to the ioaccel2 device handle */
|
|
c2a = &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex];
|
|
if (c2a == NULL)
|
|
return 0; /* no match */
|
|
|
|
scmd = (struct scsi_cmnd *) ioaccel2_cmd_to_abort->scsi_cmd;
|
|
if (scmd == NULL)
|
|
return 0; /* no match */
|
|
|
|
d = scmd->device->hostdata;
|
|
if (d == NULL)
|
|
return 0; /* no match */
|
|
|
|
it_nexus = cpu_to_le32(d->ioaccel_handle);
|
|
scsi_nexus = cpu_to_le32(c2a->scsi_nexus);
|
|
find = c2a->scsi_nexus;
|
|
|
|
if (h->raid_offload_debug > 0)
|
|
dev_info(&h->pdev->dev,
|
|
"%s: scsi_nexus:0x%08x device id: 0x%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
|
|
__func__, scsi_nexus,
|
|
d->device_id[0], d->device_id[1], d->device_id[2],
|
|
d->device_id[3], d->device_id[4], d->device_id[5],
|
|
d->device_id[6], d->device_id[7], d->device_id[8],
|
|
d->device_id[9], d->device_id[10], d->device_id[11],
|
|
d->device_id[12], d->device_id[13], d->device_id[14],
|
|
d->device_id[15]);
|
|
|
|
/* Get the list of physical devices */
|
|
physicals = kzalloc(reportsize, GFP_KERNEL);
|
|
if (physicals == NULL)
|
|
return 0;
|
|
if (hpsa_scsi_do_report_phys_luns(h, (struct ReportLUNdata *) physicals,
|
|
reportsize, extended)) {
|
|
dev_err(&h->pdev->dev,
|
|
"Can't lookup %s device handle: report physical LUNs failed.\n",
|
|
"HP SSD Smart Path");
|
|
kfree(physicals);
|
|
return 0;
|
|
}
|
|
nphysicals = be32_to_cpu(*((__be32 *)physicals->LUNListLength)) /
|
|
responsesize;
|
|
|
|
/* find ioaccel2 handle in list of physicals: */
|
|
for (i = 0; i < nphysicals; i++) {
|
|
struct ext_report_lun_entry *entry = &physicals->LUN[i];
|
|
|
|
/* handle is in bytes 28-31 of each lun */
|
|
if (entry->ioaccel_handle != find)
|
|
continue; /* didn't match */
|
|
found = 1;
|
|
memcpy(scsi3addr, entry->lunid, 8);
|
|
if (h->raid_offload_debug > 0)
|
|
dev_info(&h->pdev->dev,
|
|
"%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
|
|
__func__, find,
|
|
entry->ioaccel_handle, scsi3addr);
|
|
break; /* found it */
|
|
}
|
|
|
|
kfree(physicals);
|
|
if (found)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
|
|
}
|
|
/*
|
|
* Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
|
|
* logdev. The number of luns in physdev and logdev are returned in
|
|
* *nphysicals and *nlogicals, respectively.
|
|
* Returns 0 on success, -1 otherwise.
|
|
*/
|
|
static int hpsa_gather_lun_info(struct ctlr_info *h,
|
|
int reportphyslunsize, int reportloglunsize,
|
|
struct ReportLUNdata *physdev, u32 *nphysicals, int *physical_mode,
|
|
struct ReportLUNdata *logdev, u32 *nlogicals)
|
|
{
|
|
int physical_entry_size = 8;
|
|
|
|
*physical_mode = 0;
|
|
|
|
/* For I/O accelerator mode we need to read physical device handles */
|
|
if (h->transMethod & CFGTBL_Trans_io_accel1 ||
|
|
h->transMethod & CFGTBL_Trans_io_accel2) {
|
|
*physical_mode = HPSA_REPORT_PHYS_EXTENDED;
|
|
physical_entry_size = 24;
|
|
}
|
|
if (hpsa_scsi_do_report_phys_luns(h, physdev, reportphyslunsize,
|
|
*physical_mode)) {
|
|
dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
|
|
return -1;
|
|
}
|
|
*nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) /
|
|
physical_entry_size;
|
|
if (*nphysicals > HPSA_MAX_PHYS_LUN) {
|
|
dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded."
|
|
" %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN,
|
|
*nphysicals - HPSA_MAX_PHYS_LUN);
|
|
*nphysicals = HPSA_MAX_PHYS_LUN;
|
|
}
|
|
if (hpsa_scsi_do_report_log_luns(h, logdev, reportloglunsize)) {
|
|
dev_err(&h->pdev->dev, "report logical LUNs failed.\n");
|
|
return -1;
|
|
}
|
|
*nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8;
|
|
/* Reject Logicals in excess of our max capability. */
|
|
if (*nlogicals > HPSA_MAX_LUN) {
|
|
dev_warn(&h->pdev->dev,
|
|
"maximum logical LUNs (%d) exceeded. "
|
|
"%d LUNs ignored.\n", HPSA_MAX_LUN,
|
|
*nlogicals - HPSA_MAX_LUN);
|
|
*nlogicals = HPSA_MAX_LUN;
|
|
}
|
|
if (*nlogicals + *nphysicals > HPSA_MAX_PHYS_LUN) {
|
|
dev_warn(&h->pdev->dev,
|
|
"maximum logical + physical LUNs (%d) exceeded. "
|
|
"%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN,
|
|
*nphysicals + *nlogicals - HPSA_MAX_PHYS_LUN);
|
|
*nlogicals = HPSA_MAX_PHYS_LUN - *nphysicals;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position,
|
|
int i, int nphysicals, int nlogicals,
|
|
struct ReportExtendedLUNdata *physdev_list,
|
|
struct ReportLUNdata *logdev_list)
|
|
{
|
|
/* Helper function, figure out where the LUN ID info is coming from
|
|
* given index i, lists of physical and logical devices, where in
|
|
* the list the raid controller is supposed to appear (first or last)
|
|
*/
|
|
|
|
int logicals_start = nphysicals + (raid_ctlr_position == 0);
|
|
int last_device = nphysicals + nlogicals + (raid_ctlr_position == 0);
|
|
|
|
if (i == raid_ctlr_position)
|
|
return RAID_CTLR_LUNID;
|
|
|
|
if (i < logicals_start)
|
|
return &physdev_list->LUN[i -
|
|
(raid_ctlr_position == 0)].lunid[0];
|
|
|
|
if (i < last_device)
|
|
return &logdev_list->LUN[i - nphysicals -
|
|
(raid_ctlr_position == 0)][0];
|
|
BUG();
|
|
return NULL;
|
|
}
|
|
|
|
static int hpsa_hba_mode_enabled(struct ctlr_info *h)
|
|
{
|
|
int rc;
|
|
int hba_mode_enabled;
|
|
struct bmic_controller_parameters *ctlr_params;
|
|
ctlr_params = kzalloc(sizeof(struct bmic_controller_parameters),
|
|
GFP_KERNEL);
|
|
|
|
if (!ctlr_params)
|
|
return -ENOMEM;
|
|
rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params,
|
|
sizeof(struct bmic_controller_parameters));
|
|
if (rc) {
|
|
kfree(ctlr_params);
|
|
return rc;
|
|
}
|
|
|
|
hba_mode_enabled =
|
|
((ctlr_params->nvram_flags & HBA_MODE_ENABLED_FLAG) != 0);
|
|
kfree(ctlr_params);
|
|
return hba_mode_enabled;
|
|
}
|
|
|
|
static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
|
|
{
|
|
/* the idea here is we could get notified
|
|
* that some devices have changed, so we do a report
|
|
* physical luns and report logical luns cmd, and adjust
|
|
* our list of devices accordingly.
|
|
*
|
|
* The scsi3addr's of devices won't change so long as the
|
|
* adapter is not reset. That means we can rescan and
|
|
* tell which devices we already know about, vs. new
|
|
* devices, vs. disappearing devices.
|
|
*/
|
|
struct ReportExtendedLUNdata *physdev_list = NULL;
|
|
struct ReportLUNdata *logdev_list = NULL;
|
|
u32 nphysicals = 0;
|
|
u32 nlogicals = 0;
|
|
int physical_mode = 0;
|
|
u32 ndev_allocated = 0;
|
|
struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice;
|
|
int ncurrent = 0;
|
|
int i, n_ext_target_devs, ndevs_to_allocate;
|
|
int raid_ctlr_position;
|
|
int rescan_hba_mode;
|
|
DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS);
|
|
|
|
currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL);
|
|
physdev_list = kzalloc(sizeof(*physdev_list), GFP_KERNEL);
|
|
logdev_list = kzalloc(sizeof(*logdev_list), GFP_KERNEL);
|
|
tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL);
|
|
|
|
if (!currentsd || !physdev_list || !logdev_list || !tmpdevice) {
|
|
dev_err(&h->pdev->dev, "out of memory\n");
|
|
goto out;
|
|
}
|
|
memset(lunzerobits, 0, sizeof(lunzerobits));
|
|
|
|
rescan_hba_mode = hpsa_hba_mode_enabled(h);
|
|
if (rescan_hba_mode < 0)
|
|
goto out;
|
|
|
|
if (!h->hba_mode_enabled && rescan_hba_mode)
|
|
dev_warn(&h->pdev->dev, "HBA mode enabled\n");
|
|
else if (h->hba_mode_enabled && !rescan_hba_mode)
|
|
dev_warn(&h->pdev->dev, "HBA mode disabled\n");
|
|
|
|
h->hba_mode_enabled = rescan_hba_mode;
|
|
|
|
if (hpsa_gather_lun_info(h,
|
|
sizeof(*physdev_list), sizeof(*logdev_list),
|
|
(struct ReportLUNdata *) physdev_list, &nphysicals,
|
|
&physical_mode, logdev_list, &nlogicals))
|
|
goto out;
|
|
|
|
/* We might see up to the maximum number of logical and physical disks
|
|
* plus external target devices, and a device for the local RAID
|
|
* controller.
|
|
*/
|
|
ndevs_to_allocate = nphysicals + nlogicals + MAX_EXT_TARGETS + 1;
|
|
|
|
/* Allocate the per device structures */
|
|
for (i = 0; i < ndevs_to_allocate; i++) {
|
|
if (i >= HPSA_MAX_DEVICES) {
|
|
dev_warn(&h->pdev->dev, "maximum devices (%d) exceeded."
|
|
" %d devices ignored.\n", HPSA_MAX_DEVICES,
|
|
ndevs_to_allocate - HPSA_MAX_DEVICES);
|
|
break;
|
|
}
|
|
|
|
currentsd[i] = kzalloc(sizeof(*currentsd[i]), GFP_KERNEL);
|
|
if (!currentsd[i]) {
|
|
dev_warn(&h->pdev->dev, "out of memory at %s:%d\n",
|
|
__FILE__, __LINE__);
|
|
goto out;
|
|
}
|
|
ndev_allocated++;
|
|
}
|
|
|
|
if (is_scsi_rev_5(h))
|
|
raid_ctlr_position = 0;
|
|
else
|
|
raid_ctlr_position = nphysicals + nlogicals;
|
|
|
|
/* adjust our table of devices */
|
|
n_ext_target_devs = 0;
|
|
for (i = 0; i < nphysicals + nlogicals + 1; i++) {
|
|
u8 *lunaddrbytes, is_OBDR = 0;
|
|
|
|
/* Figure out where the LUN ID info is coming from */
|
|
lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
|
|
i, nphysicals, nlogicals, physdev_list, logdev_list);
|
|
/* skip masked physical devices. */
|
|
if (lunaddrbytes[3] & 0xC0 &&
|
|
i < nphysicals + (raid_ctlr_position == 0))
|
|
continue;
|
|
|
|
/* Get device type, vendor, model, device id */
|
|
if (hpsa_update_device_info(h, lunaddrbytes, tmpdevice,
|
|
&is_OBDR))
|
|
continue; /* skip it if we can't talk to it. */
|
|
figure_bus_target_lun(h, lunaddrbytes, tmpdevice);
|
|
this_device = currentsd[ncurrent];
|
|
|
|
/*
|
|
* For external target devices, we have to insert a LUN 0 which
|
|
* doesn't show up in CCISS_REPORT_PHYSICAL data, but there
|
|
* is nonetheless an enclosure device there. We have to
|
|
* present that otherwise linux won't find anything if
|
|
* there is no lun 0.
|
|
*/
|
|
if (add_ext_target_dev(h, tmpdevice, this_device,
|
|
lunaddrbytes, lunzerobits,
|
|
&n_ext_target_devs)) {
|
|
ncurrent++;
|
|
this_device = currentsd[ncurrent];
|
|
}
|
|
|
|
*this_device = *tmpdevice;
|
|
|
|
switch (this_device->devtype) {
|
|
case TYPE_ROM:
|
|
/* We don't *really* support actual CD-ROM devices,
|
|
* just "One Button Disaster Recovery" tape drive
|
|
* which temporarily pretends to be a CD-ROM drive.
|
|
* So we check that the device is really an OBDR tape
|
|
* device by checking for "$DR-10" in bytes 43-48 of
|
|
* the inquiry data.
|
|
*/
|
|
if (is_OBDR)
|
|
ncurrent++;
|
|
break;
|
|
case TYPE_DISK:
|
|
if (h->hba_mode_enabled) {
|
|
/* never use raid mapper in HBA mode */
|
|
this_device->offload_enabled = 0;
|
|
ncurrent++;
|
|
break;
|
|
} else if (h->acciopath_status) {
|
|
if (i >= nphysicals) {
|
|
ncurrent++;
|
|
break;
|
|
}
|
|
} else {
|
|
if (i < nphysicals)
|
|
break;
|
|
ncurrent++;
|
|
break;
|
|
}
|
|
if (physical_mode == HPSA_REPORT_PHYS_EXTENDED) {
|
|
memcpy(&this_device->ioaccel_handle,
|
|
&lunaddrbytes[20],
|
|
sizeof(this_device->ioaccel_handle));
|
|
ncurrent++;
|
|
}
|
|
break;
|
|
case TYPE_TAPE:
|
|
case TYPE_MEDIUM_CHANGER:
|
|
ncurrent++;
|
|
break;
|
|
case TYPE_RAID:
|
|
/* Only present the Smartarray HBA as a RAID controller.
|
|
* If it's a RAID controller other than the HBA itself
|
|
* (an external RAID controller, MSA500 or similar)
|
|
* don't present it.
|
|
*/
|
|
if (!is_hba_lunid(lunaddrbytes))
|
|
break;
|
|
ncurrent++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (ncurrent >= HPSA_MAX_DEVICES)
|
|
break;
|
|
}
|
|
adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent);
|
|
out:
|
|
kfree(tmpdevice);
|
|
for (i = 0; i < ndev_allocated; i++)
|
|
kfree(currentsd[i]);
|
|
kfree(currentsd);
|
|
kfree(physdev_list);
|
|
kfree(logdev_list);
|
|
}
|
|
|
|
/* hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
|
|
* dma mapping and fills in the scatter gather entries of the
|
|
* hpsa command, cp.
|
|
*/
|
|
static int hpsa_scatter_gather(struct ctlr_info *h,
|
|
struct CommandList *cp,
|
|
struct scsi_cmnd *cmd)
|
|
{
|
|
unsigned int len;
|
|
struct scatterlist *sg;
|
|
u64 addr64;
|
|
int use_sg, i, sg_index, chained;
|
|
struct SGDescriptor *curr_sg;
|
|
|
|
BUG_ON(scsi_sg_count(cmd) > h->maxsgentries);
|
|
|
|
use_sg = scsi_dma_map(cmd);
|
|
if (use_sg < 0)
|
|
return use_sg;
|
|
|
|
if (!use_sg)
|
|
goto sglist_finished;
|
|
|
|
curr_sg = cp->SG;
|
|
chained = 0;
|
|
sg_index = 0;
|
|
scsi_for_each_sg(cmd, sg, use_sg, i) {
|
|
if (i == h->max_cmd_sg_entries - 1 &&
|
|
use_sg > h->max_cmd_sg_entries) {
|
|
chained = 1;
|
|
curr_sg = h->cmd_sg_list[cp->cmdindex];
|
|
sg_index = 0;
|
|
}
|
|
addr64 = (u64) sg_dma_address(sg);
|
|
len = sg_dma_len(sg);
|
|
curr_sg->Addr = cpu_to_le64(addr64);
|
|
curr_sg->Len = cpu_to_le32(len);
|
|
curr_sg->Ext = cpu_to_le32(0);
|
|
curr_sg++;
|
|
}
|
|
(--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST);
|
|
|
|
if (use_sg + chained > h->maxSG)
|
|
h->maxSG = use_sg + chained;
|
|
|
|
if (chained) {
|
|
cp->Header.SGList = h->max_cmd_sg_entries;
|
|
cp->Header.SGTotal = cpu_to_le16(use_sg + 1);
|
|
if (hpsa_map_sg_chain_block(h, cp)) {
|
|
scsi_dma_unmap(cmd);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
sglist_finished:
|
|
|
|
cp->Header.SGList = (u8) use_sg; /* no. SGs contig in this cmd */
|
|
cp->Header.SGTotal = cpu_to_le16(use_sg); /* total sgs in this cmd list */
|
|
return 0;
|
|
}
|
|
|
|
#define IO_ACCEL_INELIGIBLE (1)
|
|
static int fixup_ioaccel_cdb(u8 *cdb, int *cdb_len)
|
|
{
|
|
int is_write = 0;
|
|
u32 block;
|
|
u32 block_cnt;
|
|
|
|
/* Perform some CDB fixups if needed using 10 byte reads/writes only */
|
|
switch (cdb[0]) {
|
|
case WRITE_6:
|
|
case WRITE_12:
|
|
is_write = 1;
|
|
case READ_6:
|
|
case READ_12:
|
|
if (*cdb_len == 6) {
|
|
block = (((u32) cdb[2]) << 8) | cdb[3];
|
|
block_cnt = cdb[4];
|
|
} else {
|
|
BUG_ON(*cdb_len != 12);
|
|
block = (((u32) cdb[2]) << 24) |
|
|
(((u32) cdb[3]) << 16) |
|
|
(((u32) cdb[4]) << 8) |
|
|
cdb[5];
|
|
block_cnt =
|
|
(((u32) cdb[6]) << 24) |
|
|
(((u32) cdb[7]) << 16) |
|
|
(((u32) cdb[8]) << 8) |
|
|
cdb[9];
|
|
}
|
|
if (block_cnt > 0xffff)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
cdb[0] = is_write ? WRITE_10 : READ_10;
|
|
cdb[1] = 0;
|
|
cdb[2] = (u8) (block >> 24);
|
|
cdb[3] = (u8) (block >> 16);
|
|
cdb[4] = (u8) (block >> 8);
|
|
cdb[5] = (u8) (block);
|
|
cdb[6] = 0;
|
|
cdb[7] = (u8) (block_cnt >> 8);
|
|
cdb[8] = (u8) (block_cnt);
|
|
cdb[9] = 0;
|
|
*cdb_len = 10;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info *h,
|
|
struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
|
|
u8 *scsi3addr)
|
|
{
|
|
struct scsi_cmnd *cmd = c->scsi_cmd;
|
|
struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex];
|
|
unsigned int len;
|
|
unsigned int total_len = 0;
|
|
struct scatterlist *sg;
|
|
u64 addr64;
|
|
int use_sg, i;
|
|
struct SGDescriptor *curr_sg;
|
|
u32 control = IOACCEL1_CONTROL_SIMPLEQUEUE;
|
|
|
|
/* TODO: implement chaining support */
|
|
if (scsi_sg_count(cmd) > h->ioaccel_maxsg)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
BUG_ON(cmd->cmd_len > IOACCEL1_IOFLAGS_CDBLEN_MAX);
|
|
|
|
if (fixup_ioaccel_cdb(cdb, &cdb_len))
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
c->cmd_type = CMD_IOACCEL1;
|
|
|
|
/* Adjust the DMA address to point to the accelerated command buffer */
|
|
c->busaddr = (u32) h->ioaccel_cmd_pool_dhandle +
|
|
(c->cmdindex * sizeof(*cp));
|
|
BUG_ON(c->busaddr & 0x0000007F);
|
|
|
|
use_sg = scsi_dma_map(cmd);
|
|
if (use_sg < 0)
|
|
return use_sg;
|
|
|
|
if (use_sg) {
|
|
curr_sg = cp->SG;
|
|
scsi_for_each_sg(cmd, sg, use_sg, i) {
|
|
addr64 = (u64) sg_dma_address(sg);
|
|
len = sg_dma_len(sg);
|
|
total_len += len;
|
|
curr_sg->Addr = cpu_to_le64(addr64);
|
|
curr_sg->Len = cpu_to_le32(len);
|
|
curr_sg->Ext = cpu_to_le32(0);
|
|
curr_sg++;
|
|
}
|
|
(--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST);
|
|
|
|
switch (cmd->sc_data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
control |= IOACCEL1_CONTROL_DATA_OUT;
|
|
break;
|
|
case DMA_FROM_DEVICE:
|
|
control |= IOACCEL1_CONTROL_DATA_IN;
|
|
break;
|
|
case DMA_NONE:
|
|
control |= IOACCEL1_CONTROL_NODATAXFER;
|
|
break;
|
|
default:
|
|
dev_err(&h->pdev->dev, "unknown data direction: %d\n",
|
|
cmd->sc_data_direction);
|
|
BUG();
|
|
break;
|
|
}
|
|
} else {
|
|
control |= IOACCEL1_CONTROL_NODATAXFER;
|
|
}
|
|
|
|
c->Header.SGList = use_sg;
|
|
/* Fill out the command structure to submit */
|
|
cp->dev_handle = ioaccel_handle & 0xFFFF;
|
|
cp->transfer_len = total_len;
|
|
cp->io_flags = IOACCEL1_IOFLAGS_IO_REQ |
|
|
(cdb_len & IOACCEL1_IOFLAGS_CDBLEN_MASK);
|
|
cp->control = control;
|
|
memcpy(cp->CDB, cdb, cdb_len);
|
|
memcpy(cp->CISS_LUN, scsi3addr, 8);
|
|
/* Tag was already set at init time. */
|
|
enqueue_cmd_and_start_io(h, c);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Queue a command directly to a device behind the controller using the
|
|
* I/O accelerator path.
|
|
*/
|
|
static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct scsi_cmnd *cmd = c->scsi_cmd;
|
|
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
|
|
|
|
return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle,
|
|
cmd->cmnd, cmd->cmd_len, dev->scsi3addr);
|
|
}
|
|
|
|
/*
|
|
* Set encryption parameters for the ioaccel2 request
|
|
*/
|
|
static void set_encrypt_ioaccel2(struct ctlr_info *h,
|
|
struct CommandList *c, struct io_accel2_cmd *cp)
|
|
{
|
|
struct scsi_cmnd *cmd = c->scsi_cmd;
|
|
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
|
|
struct raid_map_data *map = &dev->raid_map;
|
|
u64 first_block;
|
|
|
|
BUG_ON(!(dev->offload_config && dev->offload_enabled));
|
|
|
|
/* Are we doing encryption on this device */
|
|
if (!(map->flags & RAID_MAP_FLAG_ENCRYPT_ON))
|
|
return;
|
|
/* Set the data encryption key index. */
|
|
cp->dekindex = map->dekindex;
|
|
|
|
/* Set the encryption enable flag, encoded into direction field. */
|
|
cp->direction |= IOACCEL2_DIRECTION_ENCRYPT_MASK;
|
|
|
|
/* Set encryption tweak values based on logical block address
|
|
* If block size is 512, tweak value is LBA.
|
|
* For other block sizes, tweak is (LBA * block size)/ 512)
|
|
*/
|
|
switch (cmd->cmnd[0]) {
|
|
/* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
|
|
case WRITE_6:
|
|
case READ_6:
|
|
if (map->volume_blk_size == 512) {
|
|
cp->tweak_lower =
|
|
(((u32) cmd->cmnd[2]) << 8) |
|
|
cmd->cmnd[3];
|
|
cp->tweak_upper = 0;
|
|
} else {
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 8) |
|
|
cmd->cmnd[3];
|
|
first_block = (first_block * map->volume_blk_size)/512;
|
|
cp->tweak_lower = (u32)first_block;
|
|
cp->tweak_upper = (u32)(first_block >> 32);
|
|
}
|
|
break;
|
|
case WRITE_10:
|
|
case READ_10:
|
|
if (map->volume_blk_size == 512) {
|
|
cp->tweak_lower =
|
|
(((u32) cmd->cmnd[2]) << 24) |
|
|
(((u32) cmd->cmnd[3]) << 16) |
|
|
(((u32) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
cp->tweak_upper = 0;
|
|
} else {
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 24) |
|
|
(((u64) cmd->cmnd[3]) << 16) |
|
|
(((u64) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
first_block = (first_block * map->volume_blk_size)/512;
|
|
cp->tweak_lower = (u32)first_block;
|
|
cp->tweak_upper = (u32)(first_block >> 32);
|
|
}
|
|
break;
|
|
/* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */
|
|
case WRITE_12:
|
|
case READ_12:
|
|
if (map->volume_blk_size == 512) {
|
|
cp->tweak_lower =
|
|
(((u32) cmd->cmnd[2]) << 24) |
|
|
(((u32) cmd->cmnd[3]) << 16) |
|
|
(((u32) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
cp->tweak_upper = 0;
|
|
} else {
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 24) |
|
|
(((u64) cmd->cmnd[3]) << 16) |
|
|
(((u64) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
first_block = (first_block * map->volume_blk_size)/512;
|
|
cp->tweak_lower = (u32)first_block;
|
|
cp->tweak_upper = (u32)(first_block >> 32);
|
|
}
|
|
break;
|
|
case WRITE_16:
|
|
case READ_16:
|
|
if (map->volume_blk_size == 512) {
|
|
cp->tweak_lower =
|
|
(((u32) cmd->cmnd[6]) << 24) |
|
|
(((u32) cmd->cmnd[7]) << 16) |
|
|
(((u32) cmd->cmnd[8]) << 8) |
|
|
cmd->cmnd[9];
|
|
cp->tweak_upper =
|
|
(((u32) cmd->cmnd[2]) << 24) |
|
|
(((u32) cmd->cmnd[3]) << 16) |
|
|
(((u32) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
} else {
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 56) |
|
|
(((u64) cmd->cmnd[3]) << 48) |
|
|
(((u64) cmd->cmnd[4]) << 40) |
|
|
(((u64) cmd->cmnd[5]) << 32) |
|
|
(((u64) cmd->cmnd[6]) << 24) |
|
|
(((u64) cmd->cmnd[7]) << 16) |
|
|
(((u64) cmd->cmnd[8]) << 8) |
|
|
cmd->cmnd[9];
|
|
first_block = (first_block * map->volume_blk_size)/512;
|
|
cp->tweak_lower = (u32)first_block;
|
|
cp->tweak_upper = (u32)(first_block >> 32);
|
|
}
|
|
break;
|
|
default:
|
|
dev_err(&h->pdev->dev,
|
|
"ERROR: %s: IOACCEL request CDB size not supported for encryption\n",
|
|
__func__);
|
|
BUG();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h,
|
|
struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
|
|
u8 *scsi3addr)
|
|
{
|
|
struct scsi_cmnd *cmd = c->scsi_cmd;
|
|
struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex];
|
|
struct ioaccel2_sg_element *curr_sg;
|
|
int use_sg, i;
|
|
struct scatterlist *sg;
|
|
u64 addr64;
|
|
u32 len;
|
|
u32 total_len = 0;
|
|
|
|
if (scsi_sg_count(cmd) > h->ioaccel_maxsg)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
if (fixup_ioaccel_cdb(cdb, &cdb_len))
|
|
return IO_ACCEL_INELIGIBLE;
|
|
c->cmd_type = CMD_IOACCEL2;
|
|
/* Adjust the DMA address to point to the accelerated command buffer */
|
|
c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle +
|
|
(c->cmdindex * sizeof(*cp));
|
|
BUG_ON(c->busaddr & 0x0000007F);
|
|
|
|
memset(cp, 0, sizeof(*cp));
|
|
cp->IU_type = IOACCEL2_IU_TYPE;
|
|
|
|
use_sg = scsi_dma_map(cmd);
|
|
if (use_sg < 0)
|
|
return use_sg;
|
|
|
|
if (use_sg) {
|
|
BUG_ON(use_sg > IOACCEL2_MAXSGENTRIES);
|
|
curr_sg = cp->sg;
|
|
scsi_for_each_sg(cmd, sg, use_sg, i) {
|
|
addr64 = (u64) sg_dma_address(sg);
|
|
len = sg_dma_len(sg);
|
|
total_len += len;
|
|
curr_sg->address = cpu_to_le64(addr64);
|
|
curr_sg->length = cpu_to_le32(len);
|
|
curr_sg->reserved[0] = 0;
|
|
curr_sg->reserved[1] = 0;
|
|
curr_sg->reserved[2] = 0;
|
|
curr_sg->chain_indicator = 0;
|
|
curr_sg++;
|
|
}
|
|
|
|
switch (cmd->sc_data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
cp->direction &= ~IOACCEL2_DIRECTION_MASK;
|
|
cp->direction |= IOACCEL2_DIR_DATA_OUT;
|
|
break;
|
|
case DMA_FROM_DEVICE:
|
|
cp->direction &= ~IOACCEL2_DIRECTION_MASK;
|
|
cp->direction |= IOACCEL2_DIR_DATA_IN;
|
|
break;
|
|
case DMA_NONE:
|
|
cp->direction &= ~IOACCEL2_DIRECTION_MASK;
|
|
cp->direction |= IOACCEL2_DIR_NO_DATA;
|
|
break;
|
|
default:
|
|
dev_err(&h->pdev->dev, "unknown data direction: %d\n",
|
|
cmd->sc_data_direction);
|
|
BUG();
|
|
break;
|
|
}
|
|
} else {
|
|
cp->direction &= ~IOACCEL2_DIRECTION_MASK;
|
|
cp->direction |= IOACCEL2_DIR_NO_DATA;
|
|
}
|
|
|
|
/* Set encryption parameters, if necessary */
|
|
set_encrypt_ioaccel2(h, c, cp);
|
|
|
|
cp->scsi_nexus = ioaccel_handle;
|
|
cp->Tag = (c->cmdindex << DIRECT_LOOKUP_SHIFT) |
|
|
DIRECT_LOOKUP_BIT;
|
|
memcpy(cp->cdb, cdb, sizeof(cp->cdb));
|
|
|
|
/* fill in sg elements */
|
|
cp->sg_count = (u8) use_sg;
|
|
|
|
cp->data_len = cpu_to_le32(total_len);
|
|
cp->err_ptr = cpu_to_le64(c->busaddr +
|
|
offsetof(struct io_accel2_cmd, error_data));
|
|
cp->err_len = cpu_to_le32(sizeof(cp->error_data));
|
|
|
|
enqueue_cmd_and_start_io(h, c);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Queue a command to the correct I/O accelerator path.
|
|
*/
|
|
static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h,
|
|
struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
|
|
u8 *scsi3addr)
|
|
{
|
|
if (h->transMethod & CFGTBL_Trans_io_accel1)
|
|
return hpsa_scsi_ioaccel1_queue_command(h, c, ioaccel_handle,
|
|
cdb, cdb_len, scsi3addr);
|
|
else
|
|
return hpsa_scsi_ioaccel2_queue_command(h, c, ioaccel_handle,
|
|
cdb, cdb_len, scsi3addr);
|
|
}
|
|
|
|
static void raid_map_helper(struct raid_map_data *map,
|
|
int offload_to_mirror, u32 *map_index, u32 *current_group)
|
|
{
|
|
if (offload_to_mirror == 0) {
|
|
/* use physical disk in the first mirrored group. */
|
|
*map_index %= map->data_disks_per_row;
|
|
return;
|
|
}
|
|
do {
|
|
/* determine mirror group that *map_index indicates */
|
|
*current_group = *map_index / map->data_disks_per_row;
|
|
if (offload_to_mirror == *current_group)
|
|
continue;
|
|
if (*current_group < (map->layout_map_count - 1)) {
|
|
/* select map index from next group */
|
|
*map_index += map->data_disks_per_row;
|
|
(*current_group)++;
|
|
} else {
|
|
/* select map index from first group */
|
|
*map_index %= map->data_disks_per_row;
|
|
*current_group = 0;
|
|
}
|
|
} while (offload_to_mirror != *current_group);
|
|
}
|
|
|
|
/*
|
|
* Attempt to perform offload RAID mapping for a logical volume I/O.
|
|
*/
|
|
static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
struct scsi_cmnd *cmd = c->scsi_cmd;
|
|
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
|
|
struct raid_map_data *map = &dev->raid_map;
|
|
struct raid_map_disk_data *dd = &map->data[0];
|
|
int is_write = 0;
|
|
u32 map_index;
|
|
u64 first_block, last_block;
|
|
u32 block_cnt;
|
|
u32 blocks_per_row;
|
|
u64 first_row, last_row;
|
|
u32 first_row_offset, last_row_offset;
|
|
u32 first_column, last_column;
|
|
u64 r0_first_row, r0_last_row;
|
|
u32 r5or6_blocks_per_row;
|
|
u64 r5or6_first_row, r5or6_last_row;
|
|
u32 r5or6_first_row_offset, r5or6_last_row_offset;
|
|
u32 r5or6_first_column, r5or6_last_column;
|
|
u32 total_disks_per_row;
|
|
u32 stripesize;
|
|
u32 first_group, last_group, current_group;
|
|
u32 map_row;
|
|
u32 disk_handle;
|
|
u64 disk_block;
|
|
u32 disk_block_cnt;
|
|
u8 cdb[16];
|
|
u8 cdb_len;
|
|
#if BITS_PER_LONG == 32
|
|
u64 tmpdiv;
|
|
#endif
|
|
int offload_to_mirror;
|
|
|
|
BUG_ON(!(dev->offload_config && dev->offload_enabled));
|
|
|
|
/* check for valid opcode, get LBA and block count */
|
|
switch (cmd->cmnd[0]) {
|
|
case WRITE_6:
|
|
is_write = 1;
|
|
case READ_6:
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 8) |
|
|
cmd->cmnd[3];
|
|
block_cnt = cmd->cmnd[4];
|
|
if (block_cnt == 0)
|
|
block_cnt = 256;
|
|
break;
|
|
case WRITE_10:
|
|
is_write = 1;
|
|
case READ_10:
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 24) |
|
|
(((u64) cmd->cmnd[3]) << 16) |
|
|
(((u64) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
block_cnt =
|
|
(((u32) cmd->cmnd[7]) << 8) |
|
|
cmd->cmnd[8];
|
|
break;
|
|
case WRITE_12:
|
|
is_write = 1;
|
|
case READ_12:
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 24) |
|
|
(((u64) cmd->cmnd[3]) << 16) |
|
|
(((u64) cmd->cmnd[4]) << 8) |
|
|
cmd->cmnd[5];
|
|
block_cnt =
|
|
(((u32) cmd->cmnd[6]) << 24) |
|
|
(((u32) cmd->cmnd[7]) << 16) |
|
|
(((u32) cmd->cmnd[8]) << 8) |
|
|
cmd->cmnd[9];
|
|
break;
|
|
case WRITE_16:
|
|
is_write = 1;
|
|
case READ_16:
|
|
first_block =
|
|
(((u64) cmd->cmnd[2]) << 56) |
|
|
(((u64) cmd->cmnd[3]) << 48) |
|
|
(((u64) cmd->cmnd[4]) << 40) |
|
|
(((u64) cmd->cmnd[5]) << 32) |
|
|
(((u64) cmd->cmnd[6]) << 24) |
|
|
(((u64) cmd->cmnd[7]) << 16) |
|
|
(((u64) cmd->cmnd[8]) << 8) |
|
|
cmd->cmnd[9];
|
|
block_cnt =
|
|
(((u32) cmd->cmnd[10]) << 24) |
|
|
(((u32) cmd->cmnd[11]) << 16) |
|
|
(((u32) cmd->cmnd[12]) << 8) |
|
|
cmd->cmnd[13];
|
|
break;
|
|
default:
|
|
return IO_ACCEL_INELIGIBLE; /* process via normal I/O path */
|
|
}
|
|
last_block = first_block + block_cnt - 1;
|
|
|
|
/* check for write to non-RAID-0 */
|
|
if (is_write && dev->raid_level != 0)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
/* check for invalid block or wraparound */
|
|
if (last_block >= map->volume_blk_cnt || last_block < first_block)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
/* calculate stripe information for the request */
|
|
blocks_per_row = map->data_disks_per_row * map->strip_size;
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
(void) do_div(tmpdiv, blocks_per_row);
|
|
first_row = tmpdiv;
|
|
tmpdiv = last_block;
|
|
(void) do_div(tmpdiv, blocks_per_row);
|
|
last_row = tmpdiv;
|
|
first_row_offset = (u32) (first_block - (first_row * blocks_per_row));
|
|
last_row_offset = (u32) (last_block - (last_row * blocks_per_row));
|
|
tmpdiv = first_row_offset;
|
|
(void) do_div(tmpdiv, map->strip_size);
|
|
first_column = tmpdiv;
|
|
tmpdiv = last_row_offset;
|
|
(void) do_div(tmpdiv, map->strip_size);
|
|
last_column = tmpdiv;
|
|
#else
|
|
first_row = first_block / blocks_per_row;
|
|
last_row = last_block / blocks_per_row;
|
|
first_row_offset = (u32) (first_block - (first_row * blocks_per_row));
|
|
last_row_offset = (u32) (last_block - (last_row * blocks_per_row));
|
|
first_column = first_row_offset / map->strip_size;
|
|
last_column = last_row_offset / map->strip_size;
|
|
#endif
|
|
|
|
/* if this isn't a single row/column then give to the controller */
|
|
if ((first_row != last_row) || (first_column != last_column))
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
/* proceeding with driver mapping */
|
|
total_disks_per_row = map->data_disks_per_row +
|
|
map->metadata_disks_per_row;
|
|
map_row = ((u32)(first_row >> map->parity_rotation_shift)) %
|
|
map->row_cnt;
|
|
map_index = (map_row * total_disks_per_row) + first_column;
|
|
|
|
switch (dev->raid_level) {
|
|
case HPSA_RAID_0:
|
|
break; /* nothing special to do */
|
|
case HPSA_RAID_1:
|
|
/* Handles load balance across RAID 1 members.
|
|
* (2-drive R1 and R10 with even # of drives.)
|
|
* Appropriate for SSDs, not optimal for HDDs
|
|
*/
|
|
BUG_ON(map->layout_map_count != 2);
|
|
if (dev->offload_to_mirror)
|
|
map_index += map->data_disks_per_row;
|
|
dev->offload_to_mirror = !dev->offload_to_mirror;
|
|
break;
|
|
case HPSA_RAID_ADM:
|
|
/* Handles N-way mirrors (R1-ADM)
|
|
* and R10 with # of drives divisible by 3.)
|
|
*/
|
|
BUG_ON(map->layout_map_count != 3);
|
|
|
|
offload_to_mirror = dev->offload_to_mirror;
|
|
raid_map_helper(map, offload_to_mirror,
|
|
&map_index, ¤t_group);
|
|
/* set mirror group to use next time */
|
|
offload_to_mirror =
|
|
(offload_to_mirror >= map->layout_map_count - 1)
|
|
? 0 : offload_to_mirror + 1;
|
|
dev->offload_to_mirror = offload_to_mirror;
|
|
/* Avoid direct use of dev->offload_to_mirror within this
|
|
* function since multiple threads might simultaneously
|
|
* increment it beyond the range of dev->layout_map_count -1.
|
|
*/
|
|
break;
|
|
case HPSA_RAID_5:
|
|
case HPSA_RAID_6:
|
|
if (map->layout_map_count <= 1)
|
|
break;
|
|
|
|
/* Verify first and last block are in same RAID group */
|
|
r5or6_blocks_per_row =
|
|
map->strip_size * map->data_disks_per_row;
|
|
BUG_ON(r5or6_blocks_per_row == 0);
|
|
stripesize = r5or6_blocks_per_row * map->layout_map_count;
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
first_group = do_div(tmpdiv, stripesize);
|
|
tmpdiv = first_group;
|
|
(void) do_div(tmpdiv, r5or6_blocks_per_row);
|
|
first_group = tmpdiv;
|
|
tmpdiv = last_block;
|
|
last_group = do_div(tmpdiv, stripesize);
|
|
tmpdiv = last_group;
|
|
(void) do_div(tmpdiv, r5or6_blocks_per_row);
|
|
last_group = tmpdiv;
|
|
#else
|
|
first_group = (first_block % stripesize) / r5or6_blocks_per_row;
|
|
last_group = (last_block % stripesize) / r5or6_blocks_per_row;
|
|
#endif
|
|
if (first_group != last_group)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
/* Verify request is in a single row of RAID 5/6 */
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
(void) do_div(tmpdiv, stripesize);
|
|
first_row = r5or6_first_row = r0_first_row = tmpdiv;
|
|
tmpdiv = last_block;
|
|
(void) do_div(tmpdiv, stripesize);
|
|
r5or6_last_row = r0_last_row = tmpdiv;
|
|
#else
|
|
first_row = r5or6_first_row = r0_first_row =
|
|
first_block / stripesize;
|
|
r5or6_last_row = r0_last_row = last_block / stripesize;
|
|
#endif
|
|
if (r5or6_first_row != r5or6_last_row)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
|
|
/* Verify request is in a single column */
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
first_row_offset = do_div(tmpdiv, stripesize);
|
|
tmpdiv = first_row_offset;
|
|
first_row_offset = (u32) do_div(tmpdiv, r5or6_blocks_per_row);
|
|
r5or6_first_row_offset = first_row_offset;
|
|
tmpdiv = last_block;
|
|
r5or6_last_row_offset = do_div(tmpdiv, stripesize);
|
|
tmpdiv = r5or6_last_row_offset;
|
|
r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row);
|
|
tmpdiv = r5or6_first_row_offset;
|
|
(void) do_div(tmpdiv, map->strip_size);
|
|
first_column = r5or6_first_column = tmpdiv;
|
|
tmpdiv = r5or6_last_row_offset;
|
|
(void) do_div(tmpdiv, map->strip_size);
|
|
r5or6_last_column = tmpdiv;
|
|
#else
|
|
first_row_offset = r5or6_first_row_offset =
|
|
(u32)((first_block % stripesize) %
|
|
r5or6_blocks_per_row);
|
|
|
|
r5or6_last_row_offset =
|
|
(u32)((last_block % stripesize) %
|
|
r5or6_blocks_per_row);
|
|
|
|
first_column = r5or6_first_column =
|
|
r5or6_first_row_offset / map->strip_size;
|
|
r5or6_last_column =
|
|
r5or6_last_row_offset / map->strip_size;
|
|
#endif
|
|
if (r5or6_first_column != r5or6_last_column)
|
|
return IO_ACCEL_INELIGIBLE;
|
|
|
|
/* Request is eligible */
|
|
map_row = ((u32)(first_row >> map->parity_rotation_shift)) %
|
|
map->row_cnt;
|
|
|
|
map_index = (first_group *
|
|
(map->row_cnt * total_disks_per_row)) +
|
|
(map_row * total_disks_per_row) + first_column;
|
|
break;
|
|
default:
|
|
return IO_ACCEL_INELIGIBLE;
|
|
}
|
|
|
|
disk_handle = dd[map_index].ioaccel_handle;
|
|
disk_block = map->disk_starting_blk + (first_row * map->strip_size) +
|
|
(first_row_offset - (first_column * map->strip_size));
|
|
disk_block_cnt = block_cnt;
|
|
|
|
/* handle differing logical/physical block sizes */
|
|
if (map->phys_blk_shift) {
|
|
disk_block <<= map->phys_blk_shift;
|
|
disk_block_cnt <<= map->phys_blk_shift;
|
|
}
|
|
BUG_ON(disk_block_cnt > 0xffff);
|
|
|
|
/* build the new CDB for the physical disk I/O */
|
|
if (disk_block > 0xffffffff) {
|
|
cdb[0] = is_write ? WRITE_16 : READ_16;
|
|
cdb[1] = 0;
|
|
cdb[2] = (u8) (disk_block >> 56);
|
|
cdb[3] = (u8) (disk_block >> 48);
|
|
cdb[4] = (u8) (disk_block >> 40);
|
|
cdb[5] = (u8) (disk_block >> 32);
|
|
cdb[6] = (u8) (disk_block >> 24);
|
|
cdb[7] = (u8) (disk_block >> 16);
|
|
cdb[8] = (u8) (disk_block >> 8);
|
|
cdb[9] = (u8) (disk_block);
|
|
cdb[10] = (u8) (disk_block_cnt >> 24);
|
|
cdb[11] = (u8) (disk_block_cnt >> 16);
|
|
cdb[12] = (u8) (disk_block_cnt >> 8);
|
|
cdb[13] = (u8) (disk_block_cnt);
|
|
cdb[14] = 0;
|
|
cdb[15] = 0;
|
|
cdb_len = 16;
|
|
} else {
|
|
cdb[0] = is_write ? WRITE_10 : READ_10;
|
|
cdb[1] = 0;
|
|
cdb[2] = (u8) (disk_block >> 24);
|
|
cdb[3] = (u8) (disk_block >> 16);
|
|
cdb[4] = (u8) (disk_block >> 8);
|
|
cdb[5] = (u8) (disk_block);
|
|
cdb[6] = 0;
|
|
cdb[7] = (u8) (disk_block_cnt >> 8);
|
|
cdb[8] = (u8) (disk_block_cnt);
|
|
cdb[9] = 0;
|
|
cdb_len = 10;
|
|
}
|
|
return hpsa_scsi_ioaccel_queue_command(h, c, disk_handle, cdb, cdb_len,
|
|
dev->scsi3addr);
|
|
}
|
|
|
|
/*
|
|
* Running in struct Scsi_Host->host_lock less mode using LLD internal
|
|
* struct ctlr_info *h->lock w/ spin_lock_irqsave() protection.
|
|
*/
|
|
static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
|
|
{
|
|
struct ctlr_info *h;
|
|
struct hpsa_scsi_dev_t *dev;
|
|
unsigned char scsi3addr[8];
|
|
struct CommandList *c;
|
|
int rc = 0;
|
|
|
|
/* Get the ptr to our adapter structure out of cmd->host. */
|
|
h = sdev_to_hba(cmd->device);
|
|
dev = cmd->device->hostdata;
|
|
if (!dev) {
|
|
cmd->result = DID_NO_CONNECT << 16;
|
|
cmd->scsi_done(cmd);
|
|
return 0;
|
|
}
|
|
memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr));
|
|
|
|
if (unlikely(lockup_detected(h))) {
|
|
cmd->result = DID_ERROR << 16;
|
|
cmd->scsi_done(cmd);
|
|
return 0;
|
|
}
|
|
c = cmd_alloc(h);
|
|
if (c == NULL) { /* trouble... */
|
|
dev_err(&h->pdev->dev, "cmd_alloc returned NULL!\n");
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
/* Fill in the command list header */
|
|
/* save c in case we have to abort it */
|
|
cmd->host_scribble = (unsigned char *) c;
|
|
|
|
c->cmd_type = CMD_SCSI;
|
|
c->scsi_cmd = cmd;
|
|
|
|
/* Call alternate submit routine for I/O accelerated commands.
|
|
* Retries always go down the normal I/O path.
|
|
*/
|
|
if (likely(cmd->retries == 0 &&
|
|
cmd->request->cmd_type == REQ_TYPE_FS &&
|
|
h->acciopath_status)) {
|
|
if (dev->offload_enabled) {
|
|
rc = hpsa_scsi_ioaccel_raid_map(h, c);
|
|
if (rc == 0)
|
|
return 0; /* Sent on ioaccel path */
|
|
if (rc < 0) { /* scsi_dma_map failed. */
|
|
cmd_free(h, c);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
} else if (dev->ioaccel_handle) {
|
|
rc = hpsa_scsi_ioaccel_direct_map(h, c);
|
|
if (rc == 0)
|
|
return 0; /* Sent on direct map path */
|
|
if (rc < 0) { /* scsi_dma_map failed. */
|
|
cmd_free(h, c);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
}
|
|
}
|
|
|
|
c->Header.ReplyQueue = 0; /* unused in simple mode */
|
|
memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8);
|
|
c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT) |
|
|
DIRECT_LOOKUP_BIT);
|
|
|
|
/* Fill in the request block... */
|
|
|
|
c->Request.Timeout = 0;
|
|
memset(c->Request.CDB, 0, sizeof(c->Request.CDB));
|
|
BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB));
|
|
c->Request.CDBLen = cmd->cmd_len;
|
|
memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len);
|
|
switch (cmd->sc_data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_WRITE);
|
|
break;
|
|
case DMA_FROM_DEVICE:
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_READ);
|
|
break;
|
|
case DMA_NONE:
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_NONE);
|
|
break;
|
|
case DMA_BIDIRECTIONAL:
|
|
/* This can happen if a buggy application does a scsi passthru
|
|
* and sets both inlen and outlen to non-zero. ( see
|
|
* ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
|
|
*/
|
|
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_RSVD);
|
|
/* This is technically wrong, and hpsa controllers should
|
|
* reject it with CMD_INVALID, which is the most correct
|
|
* response, but non-fibre backends appear to let it
|
|
* slide by, and give the same results as if this field
|
|
* were set correctly. Either way is acceptable for
|
|
* our purposes here.
|
|
*/
|
|
|
|
break;
|
|
|
|
default:
|
|
dev_err(&h->pdev->dev, "unknown data direction: %d\n",
|
|
cmd->sc_data_direction);
|
|
BUG();
|
|
break;
|
|
}
|
|
|
|
if (hpsa_scatter_gather(h, c, cmd) < 0) { /* Fill SG list */
|
|
cmd_free(h, c);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
enqueue_cmd_and_start_io(h, c);
|
|
/* the cmd'll come back via intr handler in complete_scsi_command() */
|
|
return 0;
|
|
}
|
|
|
|
static int do_not_scan_if_controller_locked_up(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* Don't let rescans be initiated on a controller known
|
|
* to be locked up. If the controller locks up *during*
|
|
* a rescan, that thread is probably hosed, but at least
|
|
* we can prevent new rescan threads from piling up on a
|
|
* locked up controller.
|
|
*/
|
|
if (unlikely(lockup_detected(h))) {
|
|
spin_lock_irqsave(&h->scan_lock, flags);
|
|
h->scan_finished = 1;
|
|
wake_up_all(&h->scan_wait_queue);
|
|
spin_unlock_irqrestore(&h->scan_lock, flags);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void hpsa_scan_start(struct Scsi_Host *sh)
|
|
{
|
|
struct ctlr_info *h = shost_to_hba(sh);
|
|
unsigned long flags;
|
|
|
|
if (do_not_scan_if_controller_locked_up(h))
|
|
return;
|
|
|
|
/* wait until any scan already in progress is finished. */
|
|
while (1) {
|
|
spin_lock_irqsave(&h->scan_lock, flags);
|
|
if (h->scan_finished)
|
|
break;
|
|
spin_unlock_irqrestore(&h->scan_lock, flags);
|
|
wait_event(h->scan_wait_queue, h->scan_finished);
|
|
/* Note: We don't need to worry about a race between this
|
|
* thread and driver unload because the midlayer will
|
|
* have incremented the reference count, so unload won't
|
|
* happen if we're in here.
|
|
*/
|
|
}
|
|
h->scan_finished = 0; /* mark scan as in progress */
|
|
spin_unlock_irqrestore(&h->scan_lock, flags);
|
|
|
|
if (do_not_scan_if_controller_locked_up(h))
|
|
return;
|
|
|
|
hpsa_update_scsi_devices(h, h->scsi_host->host_no);
|
|
|
|
spin_lock_irqsave(&h->scan_lock, flags);
|
|
h->scan_finished = 1; /* mark scan as finished. */
|
|
wake_up_all(&h->scan_wait_queue);
|
|
spin_unlock_irqrestore(&h->scan_lock, flags);
|
|
}
|
|
|
|
static int hpsa_scan_finished(struct Scsi_Host *sh,
|
|
unsigned long elapsed_time)
|
|
{
|
|
struct ctlr_info *h = shost_to_hba(sh);
|
|
unsigned long flags;
|
|
int finished;
|
|
|
|
spin_lock_irqsave(&h->scan_lock, flags);
|
|
finished = h->scan_finished;
|
|
spin_unlock_irqrestore(&h->scan_lock, flags);
|
|
return finished;
|
|
}
|
|
|
|
static void hpsa_unregister_scsi(struct ctlr_info *h)
|
|
{
|
|
/* we are being forcibly unloaded, and may not refuse. */
|
|
scsi_remove_host(h->scsi_host);
|
|
scsi_host_put(h->scsi_host);
|
|
h->scsi_host = NULL;
|
|
}
|
|
|
|
static int hpsa_register_scsi(struct ctlr_info *h)
|
|
{
|
|
struct Scsi_Host *sh;
|
|
int error;
|
|
|
|
sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h));
|
|
if (sh == NULL)
|
|
goto fail;
|
|
|
|
sh->io_port = 0;
|
|
sh->n_io_port = 0;
|
|
sh->this_id = -1;
|
|
sh->max_channel = 3;
|
|
sh->max_cmd_len = MAX_COMMAND_SIZE;
|
|
sh->max_lun = HPSA_MAX_LUN;
|
|
sh->max_id = HPSA_MAX_LUN;
|
|
sh->can_queue = h->nr_cmds;
|
|
if (h->hba_mode_enabled)
|
|
sh->cmd_per_lun = 7;
|
|
else
|
|
sh->cmd_per_lun = h->nr_cmds;
|
|
sh->sg_tablesize = h->maxsgentries;
|
|
h->scsi_host = sh;
|
|
sh->hostdata[0] = (unsigned long) h;
|
|
sh->irq = h->intr[h->intr_mode];
|
|
sh->unique_id = sh->irq;
|
|
error = scsi_add_host(sh, &h->pdev->dev);
|
|
if (error)
|
|
goto fail_host_put;
|
|
scsi_scan_host(sh);
|
|
return 0;
|
|
|
|
fail_host_put:
|
|
dev_err(&h->pdev->dev, "%s: scsi_add_host"
|
|
" failed for controller %d\n", __func__, h->ctlr);
|
|
scsi_host_put(sh);
|
|
return error;
|
|
fail:
|
|
dev_err(&h->pdev->dev, "%s: scsi_host_alloc"
|
|
" failed for controller %d\n", __func__, h->ctlr);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int wait_for_device_to_become_ready(struct ctlr_info *h,
|
|
unsigned char lunaddr[])
|
|
{
|
|
int rc;
|
|
int count = 0;
|
|
int waittime = 1; /* seconds */
|
|
struct CommandList *c;
|
|
|
|
c = cmd_special_alloc(h);
|
|
if (!c) {
|
|
dev_warn(&h->pdev->dev, "out of memory in "
|
|
"wait_for_device_to_become_ready.\n");
|
|
return IO_ERROR;
|
|
}
|
|
|
|
/* Send test unit ready until device ready, or give up. */
|
|
while (count < HPSA_TUR_RETRY_LIMIT) {
|
|
|
|
/* Wait for a bit. do this first, because if we send
|
|
* the TUR right away, the reset will just abort it.
|
|
*/
|
|
msleep(1000 * waittime);
|
|
count++;
|
|
rc = 0; /* Device ready. */
|
|
|
|
/* Increase wait time with each try, up to a point. */
|
|
if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS)
|
|
waittime = waittime * 2;
|
|
|
|
/* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
|
|
(void) fill_cmd(c, TEST_UNIT_READY, h,
|
|
NULL, 0, 0, lunaddr, TYPE_CMD);
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
/* no unmap needed here because no data xfer. */
|
|
|
|
if (c->err_info->CommandStatus == CMD_SUCCESS)
|
|
break;
|
|
|
|
if (c->err_info->CommandStatus == CMD_TARGET_STATUS &&
|
|
c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION &&
|
|
(c->err_info->SenseInfo[2] == NO_SENSE ||
|
|
c->err_info->SenseInfo[2] == UNIT_ATTENTION))
|
|
break;
|
|
|
|
dev_warn(&h->pdev->dev, "waiting %d secs "
|
|
"for device to become ready.\n", waittime);
|
|
rc = 1; /* device not ready. */
|
|
}
|
|
|
|
if (rc)
|
|
dev_warn(&h->pdev->dev, "giving up on device.\n");
|
|
else
|
|
dev_warn(&h->pdev->dev, "device is ready.\n");
|
|
|
|
cmd_special_free(h, c);
|
|
return rc;
|
|
}
|
|
|
|
/* Need at least one of these error handlers to keep ../scsi/hosts.c from
|
|
* complaining. Doing a host- or bus-reset can't do anything good here.
|
|
*/
|
|
static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd)
|
|
{
|
|
int rc;
|
|
struct ctlr_info *h;
|
|
struct hpsa_scsi_dev_t *dev;
|
|
|
|
/* find the controller to which the command to be aborted was sent */
|
|
h = sdev_to_hba(scsicmd->device);
|
|
if (h == NULL) /* paranoia */
|
|
return FAILED;
|
|
dev = scsicmd->device->hostdata;
|
|
if (!dev) {
|
|
dev_err(&h->pdev->dev, "hpsa_eh_device_reset_handler: "
|
|
"device lookup failed.\n");
|
|
return FAILED;
|
|
}
|
|
dev_warn(&h->pdev->dev, "resetting device %d:%d:%d:%d\n",
|
|
h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
|
|
/* send a reset to the SCSI LUN which the command was sent to */
|
|
rc = hpsa_send_reset(h, dev->scsi3addr, HPSA_RESET_TYPE_LUN);
|
|
if (rc == 0 && wait_for_device_to_become_ready(h, dev->scsi3addr) == 0)
|
|
return SUCCESS;
|
|
|
|
dev_warn(&h->pdev->dev, "resetting device failed.\n");
|
|
return FAILED;
|
|
}
|
|
|
|
static void swizzle_abort_tag(u8 *tag)
|
|
{
|
|
u8 original_tag[8];
|
|
|
|
memcpy(original_tag, tag, 8);
|
|
tag[0] = original_tag[3];
|
|
tag[1] = original_tag[2];
|
|
tag[2] = original_tag[1];
|
|
tag[3] = original_tag[0];
|
|
tag[4] = original_tag[7];
|
|
tag[5] = original_tag[6];
|
|
tag[6] = original_tag[5];
|
|
tag[7] = original_tag[4];
|
|
}
|
|
|
|
static void hpsa_get_tag(struct ctlr_info *h,
|
|
struct CommandList *c, u32 *taglower, u32 *tagupper)
|
|
{
|
|
if (c->cmd_type == CMD_IOACCEL1) {
|
|
struct io_accel1_cmd *cm1 = (struct io_accel1_cmd *)
|
|
&h->ioaccel_cmd_pool[c->cmdindex];
|
|
*tagupper = (u32) (cm1->tag >> 32);
|
|
*taglower = (u32) (cm1->tag & 0x0ffffffffULL);
|
|
return;
|
|
}
|
|
if (c->cmd_type == CMD_IOACCEL2) {
|
|
struct io_accel2_cmd *cm2 = (struct io_accel2_cmd *)
|
|
&h->ioaccel2_cmd_pool[c->cmdindex];
|
|
/* upper tag not used in ioaccel2 mode */
|
|
memset(tagupper, 0, sizeof(*tagupper));
|
|
*taglower = cm2->Tag;
|
|
return;
|
|
}
|
|
*tagupper = (u32) (c->Header.tag >> 32);
|
|
*taglower = (u32) (c->Header.tag & 0x0ffffffffULL);
|
|
}
|
|
|
|
static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
struct CommandList *abort, int swizzle)
|
|
{
|
|
int rc = IO_OK;
|
|
struct CommandList *c;
|
|
struct ErrorInfo *ei;
|
|
u32 tagupper, taglower;
|
|
|
|
c = cmd_special_alloc(h);
|
|
if (c == NULL) { /* trouble... */
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* fill_cmd can't fail here, no buffer to map */
|
|
(void) fill_cmd(c, HPSA_ABORT_MSG, h, abort,
|
|
0, 0, scsi3addr, TYPE_MSG);
|
|
if (swizzle)
|
|
swizzle_abort_tag(&c->Request.CDB[4]);
|
|
hpsa_scsi_do_simple_cmd_core(h, c);
|
|
hpsa_get_tag(h, abort, &taglower, &tagupper);
|
|
dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
|
|
__func__, tagupper, taglower);
|
|
/* no unmap needed here because no data xfer. */
|
|
|
|
ei = c->err_info;
|
|
switch (ei->CommandStatus) {
|
|
case CMD_SUCCESS:
|
|
break;
|
|
case CMD_UNABORTABLE: /* Very common, don't make noise. */
|
|
rc = -1;
|
|
break;
|
|
default:
|
|
dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: interpreting error.\n",
|
|
__func__, tagupper, taglower);
|
|
hpsa_scsi_interpret_error(h, c);
|
|
rc = -1;
|
|
break;
|
|
}
|
|
cmd_special_free(h, c);
|
|
dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n",
|
|
__func__, tagupper, taglower);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* hpsa_find_cmd_in_queue
|
|
*
|
|
* Used to determine whether a command (find) is still present
|
|
* in queue_head. Optionally excludes the last element of queue_head.
|
|
*
|
|
* This is used to avoid unnecessary aborts. Commands in h->reqQ have
|
|
* not yet been submitted, and so can be aborted by the driver without
|
|
* sending an abort to the hardware.
|
|
*
|
|
* Returns pointer to command if found in queue, NULL otherwise.
|
|
*/
|
|
static struct CommandList *hpsa_find_cmd_in_queue(struct ctlr_info *h,
|
|
struct scsi_cmnd *find, struct list_head *queue_head)
|
|
{
|
|
unsigned long flags;
|
|
struct CommandList *c = NULL; /* ptr into cmpQ */
|
|
|
|
if (!find)
|
|
return NULL;
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
list_for_each_entry(c, queue_head, list) {
|
|
if (c->scsi_cmd == NULL) /* e.g.: passthru ioctl */
|
|
continue;
|
|
if (c->scsi_cmd == find) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return c;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return NULL;
|
|
}
|
|
|
|
static struct CommandList *hpsa_find_cmd_in_queue_by_tag(struct ctlr_info *h,
|
|
u8 *tag, struct list_head *queue_head)
|
|
{
|
|
unsigned long flags;
|
|
struct CommandList *c;
|
|
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
list_for_each_entry(c, queue_head, list) {
|
|
if (memcmp(&c->Header.tag, tag, 8) != 0)
|
|
continue;
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return c;
|
|
}
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return NULL;
|
|
}
|
|
|
|
/* ioaccel2 path firmware cannot handle abort task requests.
|
|
* Change abort requests to physical target reset, and send to the
|
|
* address of the physical disk used for the ioaccel 2 command.
|
|
* Return 0 on success (IO_OK)
|
|
* -1 on failure
|
|
*/
|
|
|
|
static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, struct CommandList *abort)
|
|
{
|
|
int rc = IO_OK;
|
|
struct scsi_cmnd *scmd; /* scsi command within request being aborted */
|
|
struct hpsa_scsi_dev_t *dev; /* device to which scsi cmd was sent */
|
|
unsigned char phys_scsi3addr[8]; /* addr of phys disk with volume */
|
|
unsigned char *psa = &phys_scsi3addr[0];
|
|
|
|
/* Get a pointer to the hpsa logical device. */
|
|
scmd = (struct scsi_cmnd *) abort->scsi_cmd;
|
|
dev = (struct hpsa_scsi_dev_t *)(scmd->device->hostdata);
|
|
if (dev == NULL) {
|
|
dev_warn(&h->pdev->dev,
|
|
"Cannot abort: no device pointer for command.\n");
|
|
return -1; /* not abortable */
|
|
}
|
|
|
|
if (h->raid_offload_debug > 0)
|
|
dev_info(&h->pdev->dev,
|
|
"Reset as abort: Abort requested on C%d:B%d:T%d:L%d scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
h->scsi_host->host_no, dev->bus, dev->target, dev->lun,
|
|
scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3],
|
|
scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]);
|
|
|
|
if (!dev->offload_enabled) {
|
|
dev_warn(&h->pdev->dev,
|
|
"Can't abort: device is not operating in HP SSD Smart Path mode.\n");
|
|
return -1; /* not abortable */
|
|
}
|
|
|
|
/* Incoming scsi3addr is logical addr. We need physical disk addr. */
|
|
if (!hpsa_get_pdisk_of_ioaccel2(h, abort, psa)) {
|
|
dev_warn(&h->pdev->dev, "Can't abort: Failed lookup of physical address.\n");
|
|
return -1; /* not abortable */
|
|
}
|
|
|
|
/* send the reset */
|
|
if (h->raid_offload_debug > 0)
|
|
dev_info(&h->pdev->dev,
|
|
"Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
psa[0], psa[1], psa[2], psa[3],
|
|
psa[4], psa[5], psa[6], psa[7]);
|
|
rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET);
|
|
if (rc != 0) {
|
|
dev_warn(&h->pdev->dev,
|
|
"Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
psa[0], psa[1], psa[2], psa[3],
|
|
psa[4], psa[5], psa[6], psa[7]);
|
|
return rc; /* failed to reset */
|
|
}
|
|
|
|
/* wait for device to recover */
|
|
if (wait_for_device_to_become_ready(h, psa) != 0) {
|
|
dev_warn(&h->pdev->dev,
|
|
"Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
psa[0], psa[1], psa[2], psa[3],
|
|
psa[4], psa[5], psa[6], psa[7]);
|
|
return -1; /* failed to recover */
|
|
}
|
|
|
|
/* device recovered */
|
|
dev_info(&h->pdev->dev,
|
|
"Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
|
|
psa[0], psa[1], psa[2], psa[3],
|
|
psa[4], psa[5], psa[6], psa[7]);
|
|
|
|
return rc; /* success */
|
|
}
|
|
|
|
/* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
|
|
* tell which kind we're dealing with, so we send the abort both ways. There
|
|
* shouldn't be any collisions between swizzled and unswizzled tags due to the
|
|
* way we construct our tags but we check anyway in case the assumptions which
|
|
* make this true someday become false.
|
|
*/
|
|
static int hpsa_send_abort_both_ways(struct ctlr_info *h,
|
|
unsigned char *scsi3addr, struct CommandList *abort)
|
|
{
|
|
u8 swizzled_tag[8];
|
|
struct CommandList *c;
|
|
int rc = 0, rc2 = 0;
|
|
|
|
/* ioccelerator mode 2 commands should be aborted via the
|
|
* accelerated path, since RAID path is unaware of these commands,
|
|
* but underlying firmware can't handle abort TMF.
|
|
* Change abort to physical device reset.
|
|
*/
|
|
if (abort->cmd_type == CMD_IOACCEL2)
|
|
return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr, abort);
|
|
|
|
/* we do not expect to find the swizzled tag in our queue, but
|
|
* check anyway just to be sure the assumptions which make this
|
|
* the case haven't become wrong.
|
|
*/
|
|
memcpy(swizzled_tag, &abort->Request.CDB[4], 8);
|
|
swizzle_abort_tag(swizzled_tag);
|
|
c = hpsa_find_cmd_in_queue_by_tag(h, swizzled_tag, &h->cmpQ);
|
|
if (c != NULL) {
|
|
dev_warn(&h->pdev->dev, "Unexpectedly found byte-swapped tag in completion queue.\n");
|
|
return hpsa_send_abort(h, scsi3addr, abort, 0);
|
|
}
|
|
rc = hpsa_send_abort(h, scsi3addr, abort, 0);
|
|
|
|
/* if the command is still in our queue, we can't conclude that it was
|
|
* aborted (it might have just completed normally) but in any case
|
|
* we don't need to try to abort it another way.
|
|
*/
|
|
c = hpsa_find_cmd_in_queue(h, abort->scsi_cmd, &h->cmpQ);
|
|
if (c)
|
|
rc2 = hpsa_send_abort(h, scsi3addr, abort, 1);
|
|
return rc && rc2;
|
|
}
|
|
|
|
/* Send an abort for the specified command.
|
|
* If the device and controller support it,
|
|
* send a task abort request.
|
|
*/
|
|
static int hpsa_eh_abort_handler(struct scsi_cmnd *sc)
|
|
{
|
|
|
|
int i, rc;
|
|
struct ctlr_info *h;
|
|
struct hpsa_scsi_dev_t *dev;
|
|
struct CommandList *abort; /* pointer to command to be aborted */
|
|
struct CommandList *found;
|
|
struct scsi_cmnd *as; /* ptr to scsi cmd inside aborted command. */
|
|
char msg[256]; /* For debug messaging. */
|
|
int ml = 0;
|
|
u32 tagupper, taglower;
|
|
|
|
/* Find the controller of the command to be aborted */
|
|
h = sdev_to_hba(sc->device);
|
|
if (WARN(h == NULL,
|
|
"ABORT REQUEST FAILED, Controller lookup failed.\n"))
|
|
return FAILED;
|
|
|
|
/* Check that controller supports some kind of task abort */
|
|
if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) &&
|
|
!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
|
|
return FAILED;
|
|
|
|
memset(msg, 0, sizeof(msg));
|
|
ml += sprintf(msg+ml, "ABORT REQUEST on C%d:B%d:T%d:L%llu ",
|
|
h->scsi_host->host_no, sc->device->channel,
|
|
sc->device->id, sc->device->lun);
|
|
|
|
/* Find the device of the command to be aborted */
|
|
dev = sc->device->hostdata;
|
|
if (!dev) {
|
|
dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n",
|
|
msg);
|
|
return FAILED;
|
|
}
|
|
|
|
/* Get SCSI command to be aborted */
|
|
abort = (struct CommandList *) sc->host_scribble;
|
|
if (abort == NULL) {
|
|
dev_err(&h->pdev->dev, "%s FAILED, Command to abort is NULL.\n",
|
|
msg);
|
|
return FAILED;
|
|
}
|
|
hpsa_get_tag(h, abort, &taglower, &tagupper);
|
|
ml += sprintf(msg+ml, "Tag:0x%08x:%08x ", tagupper, taglower);
|
|
as = (struct scsi_cmnd *) abort->scsi_cmd;
|
|
if (as != NULL)
|
|
ml += sprintf(msg+ml, "Command:0x%x SN:0x%lx ",
|
|
as->cmnd[0], as->serial_number);
|
|
dev_dbg(&h->pdev->dev, "%s\n", msg);
|
|
dev_warn(&h->pdev->dev, "Abort request on C%d:B%d:T%d:L%d\n",
|
|
h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
|
|
|
|
/* Search reqQ to See if command is queued but not submitted,
|
|
* if so, complete the command with aborted status and remove
|
|
* it from the reqQ.
|
|
*/
|
|
found = hpsa_find_cmd_in_queue(h, sc, &h->reqQ);
|
|
if (found) {
|
|
found->err_info->CommandStatus = CMD_ABORTED;
|
|
finish_cmd(found);
|
|
dev_info(&h->pdev->dev, "%s Request SUCCEEDED (driver queue).\n",
|
|
msg);
|
|
return SUCCESS;
|
|
}
|
|
|
|
/* not in reqQ, if also not in cmpQ, must have already completed */
|
|
found = hpsa_find_cmd_in_queue(h, sc, &h->cmpQ);
|
|
if (!found) {
|
|
dev_dbg(&h->pdev->dev, "%s Request SUCCEEDED (not known to driver).\n",
|
|
msg);
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Command is in flight, or possibly already completed
|
|
* by the firmware (but not to the scsi mid layer) but we can't
|
|
* distinguish which. Send the abort down.
|
|
*/
|
|
rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort);
|
|
if (rc != 0) {
|
|
dev_dbg(&h->pdev->dev, "%s Request FAILED.\n", msg);
|
|
dev_warn(&h->pdev->dev, "FAILED abort on device C%d:B%d:T%d:L%d\n",
|
|
h->scsi_host->host_no,
|
|
dev->bus, dev->target, dev->lun);
|
|
return FAILED;
|
|
}
|
|
dev_info(&h->pdev->dev, "%s REQUEST SUCCEEDED.\n", msg);
|
|
|
|
/* If the abort(s) above completed and actually aborted the
|
|
* command, then the command to be aborted should already be
|
|
* completed. If not, wait around a bit more to see if they
|
|
* manage to complete normally.
|
|
*/
|
|
#define ABORT_COMPLETE_WAIT_SECS 30
|
|
for (i = 0; i < ABORT_COMPLETE_WAIT_SECS * 10; i++) {
|
|
found = hpsa_find_cmd_in_queue(h, sc, &h->cmpQ);
|
|
if (!found)
|
|
return SUCCESS;
|
|
msleep(100);
|
|
}
|
|
dev_warn(&h->pdev->dev, "%s FAILED. Aborted command has not completed after %d seconds.\n",
|
|
msg, ABORT_COMPLETE_WAIT_SECS);
|
|
return FAILED;
|
|
}
|
|
|
|
|
|
/*
|
|
* For operations that cannot sleep, a command block is allocated at init,
|
|
* and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
|
|
* which ones are free or in use. Lock must be held when calling this.
|
|
* cmd_free() is the complement.
|
|
*/
|
|
static struct CommandList *cmd_alloc(struct ctlr_info *h)
|
|
{
|
|
struct CommandList *c;
|
|
int i;
|
|
union u64bit temp64;
|
|
dma_addr_t cmd_dma_handle, err_dma_handle;
|
|
int loopcount;
|
|
|
|
/* There is some *extremely* small but non-zero chance that that
|
|
* multiple threads could get in here, and one thread could
|
|
* be scanning through the list of bits looking for a free
|
|
* one, but the free ones are always behind him, and other
|
|
* threads sneak in behind him and eat them before he can
|
|
* get to them, so that while there is always a free one, a
|
|
* very unlucky thread might be starved anyway, never able to
|
|
* beat the other threads. In reality, this happens so
|
|
* infrequently as to be indistinguishable from never.
|
|
*/
|
|
|
|
loopcount = 0;
|
|
do {
|
|
i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
|
|
if (i == h->nr_cmds)
|
|
i = 0;
|
|
loopcount++;
|
|
} while (test_and_set_bit(i & (BITS_PER_LONG - 1),
|
|
h->cmd_pool_bits + (i / BITS_PER_LONG)) != 0 &&
|
|
loopcount < 10);
|
|
|
|
/* Thread got starved? We do not expect this to ever happen. */
|
|
if (loopcount >= 10)
|
|
return NULL;
|
|
|
|
c = h->cmd_pool + i;
|
|
memset(c, 0, sizeof(*c));
|
|
cmd_dma_handle = h->cmd_pool_dhandle
|
|
+ i * sizeof(*c);
|
|
c->err_info = h->errinfo_pool + i;
|
|
memset(c->err_info, 0, sizeof(*c->err_info));
|
|
err_dma_handle = h->errinfo_pool_dhandle
|
|
+ i * sizeof(*c->err_info);
|
|
|
|
c->cmdindex = i;
|
|
|
|
INIT_LIST_HEAD(&c->list);
|
|
c->busaddr = (u32) cmd_dma_handle;
|
|
temp64.val = (u64) err_dma_handle;
|
|
c->ErrDesc.Addr = cpu_to_le64(err_dma_handle);
|
|
c->ErrDesc.Len = cpu_to_le32(sizeof(*c->err_info));
|
|
|
|
c->h = h;
|
|
return c;
|
|
}
|
|
|
|
/* For operations that can wait for kmalloc to possibly sleep,
|
|
* this routine can be called. Lock need not be held to call
|
|
* cmd_special_alloc. cmd_special_free() is the complement.
|
|
*/
|
|
static struct CommandList *cmd_special_alloc(struct ctlr_info *h)
|
|
{
|
|
struct CommandList *c;
|
|
dma_addr_t cmd_dma_handle, err_dma_handle;
|
|
|
|
c = pci_zalloc_consistent(h->pdev, sizeof(*c), &cmd_dma_handle);
|
|
if (c == NULL)
|
|
return NULL;
|
|
|
|
c->cmd_type = CMD_SCSI;
|
|
c->cmdindex = -1;
|
|
|
|
c->err_info = pci_zalloc_consistent(h->pdev, sizeof(*c->err_info),
|
|
&err_dma_handle);
|
|
|
|
if (c->err_info == NULL) {
|
|
pci_free_consistent(h->pdev,
|
|
sizeof(*c), c, cmd_dma_handle);
|
|
return NULL;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&c->list);
|
|
c->busaddr = (u32) cmd_dma_handle;
|
|
c->ErrDesc.Addr = cpu_to_le64(err_dma_handle);
|
|
c->ErrDesc.Len = cpu_to_le32(sizeof(*c->err_info));
|
|
|
|
c->h = h;
|
|
return c;
|
|
}
|
|
|
|
static void cmd_free(struct ctlr_info *h, struct CommandList *c)
|
|
{
|
|
int i;
|
|
|
|
i = c - h->cmd_pool;
|
|
clear_bit(i & (BITS_PER_LONG - 1),
|
|
h->cmd_pool_bits + (i / BITS_PER_LONG));
|
|
}
|
|
|
|
static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
|
|
{
|
|
pci_free_consistent(h->pdev, sizeof(*c->err_info),
|
|
c->err_info,
|
|
(dma_addr_t) le64_to_cpu(c->ErrDesc.Addr));
|
|
pci_free_consistent(h->pdev, sizeof(*c),
|
|
c, (dma_addr_t) (c->busaddr & DIRECT_LOOKUP_MASK));
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
|
|
static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd,
|
|
void __user *arg)
|
|
{
|
|
IOCTL32_Command_struct __user *arg32 =
|
|
(IOCTL32_Command_struct __user *) arg;
|
|
IOCTL_Command_struct arg64;
|
|
IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
|
|
int err;
|
|
u32 cp;
|
|
|
|
memset(&arg64, 0, sizeof(arg64));
|
|
err = 0;
|
|
err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
|
|
sizeof(arg64.LUN_info));
|
|
err |= copy_from_user(&arg64.Request, &arg32->Request,
|
|
sizeof(arg64.Request));
|
|
err |= copy_from_user(&arg64.error_info, &arg32->error_info,
|
|
sizeof(arg64.error_info));
|
|
err |= get_user(arg64.buf_size, &arg32->buf_size);
|
|
err |= get_user(cp, &arg32->buf);
|
|
arg64.buf = compat_ptr(cp);
|
|
err |= copy_to_user(p, &arg64, sizeof(arg64));
|
|
|
|
if (err)
|
|
return -EFAULT;
|
|
|
|
err = hpsa_ioctl(dev, CCISS_PASSTHRU, p);
|
|
if (err)
|
|
return err;
|
|
err |= copy_in_user(&arg32->error_info, &p->error_info,
|
|
sizeof(arg32->error_info));
|
|
if (err)
|
|
return -EFAULT;
|
|
return err;
|
|
}
|
|
|
|
static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
|
|
int cmd, void __user *arg)
|
|
{
|
|
BIG_IOCTL32_Command_struct __user *arg32 =
|
|
(BIG_IOCTL32_Command_struct __user *) arg;
|
|
BIG_IOCTL_Command_struct arg64;
|
|
BIG_IOCTL_Command_struct __user *p =
|
|
compat_alloc_user_space(sizeof(arg64));
|
|
int err;
|
|
u32 cp;
|
|
|
|
memset(&arg64, 0, sizeof(arg64));
|
|
err = 0;
|
|
err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
|
|
sizeof(arg64.LUN_info));
|
|
err |= copy_from_user(&arg64.Request, &arg32->Request,
|
|
sizeof(arg64.Request));
|
|
err |= copy_from_user(&arg64.error_info, &arg32->error_info,
|
|
sizeof(arg64.error_info));
|
|
err |= get_user(arg64.buf_size, &arg32->buf_size);
|
|
err |= get_user(arg64.malloc_size, &arg32->malloc_size);
|
|
err |= get_user(cp, &arg32->buf);
|
|
arg64.buf = compat_ptr(cp);
|
|
err |= copy_to_user(p, &arg64, sizeof(arg64));
|
|
|
|
if (err)
|
|
return -EFAULT;
|
|
|
|
err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p);
|
|
if (err)
|
|
return err;
|
|
err |= copy_in_user(&arg32->error_info, &p->error_info,
|
|
sizeof(arg32->error_info));
|
|
if (err)
|
|
return -EFAULT;
|
|
return err;
|
|
}
|
|
|
|
static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
|
|
{
|
|
switch (cmd) {
|
|
case CCISS_GETPCIINFO:
|
|
case CCISS_GETINTINFO:
|
|
case CCISS_SETINTINFO:
|
|
case CCISS_GETNODENAME:
|
|
case CCISS_SETNODENAME:
|
|
case CCISS_GETHEARTBEAT:
|
|
case CCISS_GETBUSTYPES:
|
|
case CCISS_GETFIRMVER:
|
|
case CCISS_GETDRIVVER:
|
|
case CCISS_REVALIDVOLS:
|
|
case CCISS_DEREGDISK:
|
|
case CCISS_REGNEWDISK:
|
|
case CCISS_REGNEWD:
|
|
case CCISS_RESCANDISK:
|
|
case CCISS_GETLUNINFO:
|
|
return hpsa_ioctl(dev, cmd, arg);
|
|
|
|
case CCISS_PASSTHRU32:
|
|
return hpsa_ioctl32_passthru(dev, cmd, arg);
|
|
case CCISS_BIG_PASSTHRU32:
|
|
return hpsa_ioctl32_big_passthru(dev, cmd, arg);
|
|
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int hpsa_getpciinfo_ioctl(struct ctlr_info *h, void __user *argp)
|
|
{
|
|
struct hpsa_pci_info pciinfo;
|
|
|
|
if (!argp)
|
|
return -EINVAL;
|
|
pciinfo.domain = pci_domain_nr(h->pdev->bus);
|
|
pciinfo.bus = h->pdev->bus->number;
|
|
pciinfo.dev_fn = h->pdev->devfn;
|
|
pciinfo.board_id = h->board_id;
|
|
if (copy_to_user(argp, &pciinfo, sizeof(pciinfo)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_getdrivver_ioctl(struct ctlr_info *h, void __user *argp)
|
|
{
|
|
DriverVer_type DriverVer;
|
|
unsigned char vmaj, vmin, vsubmin;
|
|
int rc;
|
|
|
|
rc = sscanf(HPSA_DRIVER_VERSION, "%hhu.%hhu.%hhu",
|
|
&vmaj, &vmin, &vsubmin);
|
|
if (rc != 3) {
|
|
dev_info(&h->pdev->dev, "driver version string '%s' "
|
|
"unrecognized.", HPSA_DRIVER_VERSION);
|
|
vmaj = 0;
|
|
vmin = 0;
|
|
vsubmin = 0;
|
|
}
|
|
DriverVer = (vmaj << 16) | (vmin << 8) | vsubmin;
|
|
if (!argp)
|
|
return -EINVAL;
|
|
if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
|
|
{
|
|
IOCTL_Command_struct iocommand;
|
|
struct CommandList *c;
|
|
char *buff = NULL;
|
|
u64 temp64;
|
|
int rc = 0;
|
|
|
|
if (!argp)
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
if (copy_from_user(&iocommand, argp, sizeof(iocommand)))
|
|
return -EFAULT;
|
|
if ((iocommand.buf_size < 1) &&
|
|
(iocommand.Request.Type.Direction != XFER_NONE)) {
|
|
return -EINVAL;
|
|
}
|
|
if (iocommand.buf_size > 0) {
|
|
buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
|
|
if (buff == NULL)
|
|
return -EFAULT;
|
|
if (iocommand.Request.Type.Direction & XFER_WRITE) {
|
|
/* Copy the data into the buffer we created */
|
|
if (copy_from_user(buff, iocommand.buf,
|
|
iocommand.buf_size)) {
|
|
rc = -EFAULT;
|
|
goto out_kfree;
|
|
}
|
|
} else {
|
|
memset(buff, 0, iocommand.buf_size);
|
|
}
|
|
}
|
|
c = cmd_special_alloc(h);
|
|
if (c == NULL) {
|
|
rc = -ENOMEM;
|
|
goto out_kfree;
|
|
}
|
|
/* Fill in the command type */
|
|
c->cmd_type = CMD_IOCTL_PEND;
|
|
/* Fill in Command Header */
|
|
c->Header.ReplyQueue = 0; /* unused in simple mode */
|
|
if (iocommand.buf_size > 0) { /* buffer to fill */
|
|
c->Header.SGList = 1;
|
|
c->Header.SGTotal = cpu_to_le16(1);
|
|
} else { /* no buffers to fill */
|
|
c->Header.SGList = 0;
|
|
c->Header.SGTotal = cpu_to_le16(0);
|
|
}
|
|
memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN));
|
|
/* use the kernel address the cmd block for tag */
|
|
c->Header.tag = c->busaddr;
|
|
|
|
/* Fill in Request block */
|
|
memcpy(&c->Request, &iocommand.Request,
|
|
sizeof(c->Request));
|
|
|
|
/* Fill in the scatter gather information */
|
|
if (iocommand.buf_size > 0) {
|
|
temp64 = pci_map_single(h->pdev, buff,
|
|
iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
|
|
if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) {
|
|
c->SG[0].Addr = cpu_to_le64(0);
|
|
c->SG[0].Len = cpu_to_le32(0);
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
c->SG[0].Addr = cpu_to_le64(temp64);
|
|
c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
|
|
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
|
|
}
|
|
hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
|
|
if (iocommand.buf_size > 0)
|
|
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
|
|
check_ioctl_unit_attention(h, c);
|
|
|
|
/* Copy the error information out */
|
|
memcpy(&iocommand.error_info, c->err_info,
|
|
sizeof(iocommand.error_info));
|
|
if (copy_to_user(argp, &iocommand, sizeof(iocommand))) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
if ((iocommand.Request.Type.Direction & XFER_READ) &&
|
|
iocommand.buf_size > 0) {
|
|
/* Copy the data out of the buffer we created */
|
|
if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
}
|
|
out:
|
|
cmd_special_free(h, c);
|
|
out_kfree:
|
|
kfree(buff);
|
|
return rc;
|
|
}
|
|
|
|
static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
|
|
{
|
|
BIG_IOCTL_Command_struct *ioc;
|
|
struct CommandList *c;
|
|
unsigned char **buff = NULL;
|
|
int *buff_size = NULL;
|
|
u64 temp64;
|
|
BYTE sg_used = 0;
|
|
int status = 0;
|
|
int i;
|
|
u32 left;
|
|
u32 sz;
|
|
BYTE __user *data_ptr;
|
|
|
|
if (!argp)
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
ioc = (BIG_IOCTL_Command_struct *)
|
|
kmalloc(sizeof(*ioc), GFP_KERNEL);
|
|
if (!ioc) {
|
|
status = -ENOMEM;
|
|
goto cleanup1;
|
|
}
|
|
if (copy_from_user(ioc, argp, sizeof(*ioc))) {
|
|
status = -EFAULT;
|
|
goto cleanup1;
|
|
}
|
|
if ((ioc->buf_size < 1) &&
|
|
(ioc->Request.Type.Direction != XFER_NONE)) {
|
|
status = -EINVAL;
|
|
goto cleanup1;
|
|
}
|
|
/* Check kmalloc limits using all SGs */
|
|
if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
|
|
status = -EINVAL;
|
|
goto cleanup1;
|
|
}
|
|
if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) {
|
|
status = -EINVAL;
|
|
goto cleanup1;
|
|
}
|
|
buff = kzalloc(SG_ENTRIES_IN_CMD * sizeof(char *), GFP_KERNEL);
|
|
if (!buff) {
|
|
status = -ENOMEM;
|
|
goto cleanup1;
|
|
}
|
|
buff_size = kmalloc(SG_ENTRIES_IN_CMD * sizeof(int), GFP_KERNEL);
|
|
if (!buff_size) {
|
|
status = -ENOMEM;
|
|
goto cleanup1;
|
|
}
|
|
left = ioc->buf_size;
|
|
data_ptr = ioc->buf;
|
|
while (left) {
|
|
sz = (left > ioc->malloc_size) ? ioc->malloc_size : left;
|
|
buff_size[sg_used] = sz;
|
|
buff[sg_used] = kmalloc(sz, GFP_KERNEL);
|
|
if (buff[sg_used] == NULL) {
|
|
status = -ENOMEM;
|
|
goto cleanup1;
|
|
}
|
|
if (ioc->Request.Type.Direction & XFER_WRITE) {
|
|
if (copy_from_user(buff[sg_used], data_ptr, sz)) {
|
|
status = -EFAULT;
|
|
goto cleanup1;
|
|
}
|
|
} else
|
|
memset(buff[sg_used], 0, sz);
|
|
left -= sz;
|
|
data_ptr += sz;
|
|
sg_used++;
|
|
}
|
|
c = cmd_special_alloc(h);
|
|
if (c == NULL) {
|
|
status = -ENOMEM;
|
|
goto cleanup1;
|
|
}
|
|
c->cmd_type = CMD_IOCTL_PEND;
|
|
c->Header.ReplyQueue = 0;
|
|
c->Header.SGList = (u8) sg_used;
|
|
c->Header.SGTotal = cpu_to_le16(sg_used);
|
|
memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN));
|
|
c->Header.tag = c->busaddr;
|
|
memcpy(&c->Request, &ioc->Request, sizeof(c->Request));
|
|
if (ioc->buf_size > 0) {
|
|
int i;
|
|
for (i = 0; i < sg_used; i++) {
|
|
temp64 = pci_map_single(h->pdev, buff[i],
|
|
buff_size[i], PCI_DMA_BIDIRECTIONAL);
|
|
if (dma_mapping_error(&h->pdev->dev,
|
|
(dma_addr_t) temp64)) {
|
|
c->SG[i].Addr = cpu_to_le64(0);
|
|
c->SG[i].Len = cpu_to_le32(0);
|
|
hpsa_pci_unmap(h->pdev, c, i,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
status = -ENOMEM;
|
|
goto cleanup0;
|
|
}
|
|
c->SG[i].Addr = cpu_to_le64(temp64);
|
|
c->SG[i].Len = cpu_to_le32(buff_size[i]);
|
|
c->SG[i].Ext = cpu_to_le32(0);
|
|
}
|
|
c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST);
|
|
}
|
|
hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
|
|
if (sg_used)
|
|
hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
|
|
check_ioctl_unit_attention(h, c);
|
|
/* Copy the error information out */
|
|
memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
|
|
if (copy_to_user(argp, ioc, sizeof(*ioc))) {
|
|
status = -EFAULT;
|
|
goto cleanup0;
|
|
}
|
|
if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) {
|
|
/* Copy the data out of the buffer we created */
|
|
BYTE __user *ptr = ioc->buf;
|
|
for (i = 0; i < sg_used; i++) {
|
|
if (copy_to_user(ptr, buff[i], buff_size[i])) {
|
|
status = -EFAULT;
|
|
goto cleanup0;
|
|
}
|
|
ptr += buff_size[i];
|
|
}
|
|
}
|
|
status = 0;
|
|
cleanup0:
|
|
cmd_special_free(h, c);
|
|
cleanup1:
|
|
if (buff) {
|
|
for (i = 0; i < sg_used; i++)
|
|
kfree(buff[i]);
|
|
kfree(buff);
|
|
}
|
|
kfree(buff_size);
|
|
kfree(ioc);
|
|
return status;
|
|
}
|
|
|
|
static void check_ioctl_unit_attention(struct ctlr_info *h,
|
|
struct CommandList *c)
|
|
{
|
|
if (c->err_info->CommandStatus == CMD_TARGET_STATUS &&
|
|
c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION)
|
|
(void) check_for_unit_attention(h, c);
|
|
}
|
|
|
|
static int increment_passthru_count(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&h->passthru_count_lock, flags);
|
|
if (h->passthru_count >= HPSA_MAX_CONCURRENT_PASSTHRUS) {
|
|
spin_unlock_irqrestore(&h->passthru_count_lock, flags);
|
|
return -1;
|
|
}
|
|
h->passthru_count++;
|
|
spin_unlock_irqrestore(&h->passthru_count_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static void decrement_passthru_count(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&h->passthru_count_lock, flags);
|
|
if (h->passthru_count <= 0) {
|
|
spin_unlock_irqrestore(&h->passthru_count_lock, flags);
|
|
/* not expecting to get here. */
|
|
dev_warn(&h->pdev->dev, "Bug detected, passthru_count seems to be incorrect.\n");
|
|
return;
|
|
}
|
|
h->passthru_count--;
|
|
spin_unlock_irqrestore(&h->passthru_count_lock, flags);
|
|
}
|
|
|
|
/*
|
|
* ioctl
|
|
*/
|
|
static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
|
|
{
|
|
struct ctlr_info *h;
|
|
void __user *argp = (void __user *)arg;
|
|
int rc;
|
|
|
|
h = sdev_to_hba(dev);
|
|
|
|
switch (cmd) {
|
|
case CCISS_DEREGDISK:
|
|
case CCISS_REGNEWDISK:
|
|
case CCISS_REGNEWD:
|
|
hpsa_scan_start(h->scsi_host);
|
|
return 0;
|
|
case CCISS_GETPCIINFO:
|
|
return hpsa_getpciinfo_ioctl(h, argp);
|
|
case CCISS_GETDRIVVER:
|
|
return hpsa_getdrivver_ioctl(h, argp);
|
|
case CCISS_PASSTHRU:
|
|
if (increment_passthru_count(h))
|
|
return -EAGAIN;
|
|
rc = hpsa_passthru_ioctl(h, argp);
|
|
decrement_passthru_count(h);
|
|
return rc;
|
|
case CCISS_BIG_PASSTHRU:
|
|
if (increment_passthru_count(h))
|
|
return -EAGAIN;
|
|
rc = hpsa_big_passthru_ioctl(h, argp);
|
|
decrement_passthru_count(h);
|
|
return rc;
|
|
default:
|
|
return -ENOTTY;
|
|
}
|
|
}
|
|
|
|
static int hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
u8 reset_type)
|
|
{
|
|
struct CommandList *c;
|
|
|
|
c = cmd_alloc(h);
|
|
if (!c)
|
|
return -ENOMEM;
|
|
/* fill_cmd can't fail here, no data buffer to map */
|
|
(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
|
|
RAID_CTLR_LUNID, TYPE_MSG);
|
|
c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */
|
|
c->waiting = NULL;
|
|
enqueue_cmd_and_start_io(h, c);
|
|
/* Don't wait for completion, the reset won't complete. Don't free
|
|
* the command either. This is the last command we will send before
|
|
* re-initializing everything, so it doesn't matter and won't leak.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
|
|
void *buff, size_t size, u16 page_code, unsigned char *scsi3addr,
|
|
int cmd_type)
|
|
{
|
|
int pci_dir = XFER_NONE;
|
|
struct CommandList *a; /* for commands to be aborted */
|
|
u32 tupper, tlower;
|
|
|
|
c->cmd_type = CMD_IOCTL_PEND;
|
|
c->Header.ReplyQueue = 0;
|
|
if (buff != NULL && size > 0) {
|
|
c->Header.SGList = 1;
|
|
c->Header.SGTotal = cpu_to_le16(1);
|
|
} else {
|
|
c->Header.SGList = 0;
|
|
c->Header.SGTotal = cpu_to_le16(0);
|
|
}
|
|
c->Header.tag = c->busaddr;
|
|
memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8);
|
|
|
|
if (cmd_type == TYPE_CMD) {
|
|
switch (cmd) {
|
|
case HPSA_INQUIRY:
|
|
/* are we trying to read a vital product page */
|
|
if (page_code & VPD_PAGE) {
|
|
c->Request.CDB[1] = 0x01;
|
|
c->Request.CDB[2] = (page_code & 0xff);
|
|
}
|
|
c->Request.CDBLen = 6;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
|
|
c->Request.Timeout = 0;
|
|
c->Request.CDB[0] = HPSA_INQUIRY;
|
|
c->Request.CDB[4] = size & 0xFF;
|
|
break;
|
|
case HPSA_REPORT_LOG:
|
|
case HPSA_REPORT_PHYS:
|
|
/* Talking to controller so It's a physical command
|
|
mode = 00 target = 0. Nothing to write.
|
|
*/
|
|
c->Request.CDBLen = 12;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
|
|
c->Request.Timeout = 0;
|
|
c->Request.CDB[0] = cmd;
|
|
c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */
|
|
c->Request.CDB[7] = (size >> 16) & 0xFF;
|
|
c->Request.CDB[8] = (size >> 8) & 0xFF;
|
|
c->Request.CDB[9] = size & 0xFF;
|
|
break;
|
|
case HPSA_CACHE_FLUSH:
|
|
c->Request.CDBLen = 12;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type,
|
|
ATTR_SIMPLE, XFER_WRITE);
|
|
c->Request.Timeout = 0;
|
|
c->Request.CDB[0] = BMIC_WRITE;
|
|
c->Request.CDB[6] = BMIC_CACHE_FLUSH;
|
|
c->Request.CDB[7] = (size >> 8) & 0xFF;
|
|
c->Request.CDB[8] = size & 0xFF;
|
|
break;
|
|
case TEST_UNIT_READY:
|
|
c->Request.CDBLen = 6;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE);
|
|
c->Request.Timeout = 0;
|
|
break;
|
|
case HPSA_GET_RAID_MAP:
|
|
c->Request.CDBLen = 12;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
|
|
c->Request.Timeout = 0;
|
|
c->Request.CDB[0] = HPSA_CISS_READ;
|
|
c->Request.CDB[1] = cmd;
|
|
c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */
|
|
c->Request.CDB[7] = (size >> 16) & 0xFF;
|
|
c->Request.CDB[8] = (size >> 8) & 0xFF;
|
|
c->Request.CDB[9] = size & 0xFF;
|
|
break;
|
|
case BMIC_SENSE_CONTROLLER_PARAMETERS:
|
|
c->Request.CDBLen = 10;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
|
|
c->Request.Timeout = 0;
|
|
c->Request.CDB[0] = BMIC_READ;
|
|
c->Request.CDB[6] = BMIC_SENSE_CONTROLLER_PARAMETERS;
|
|
c->Request.CDB[7] = (size >> 16) & 0xFF;
|
|
c->Request.CDB[8] = (size >> 8) & 0xFF;
|
|
break;
|
|
default:
|
|
dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd);
|
|
BUG();
|
|
return -1;
|
|
}
|
|
} else if (cmd_type == TYPE_MSG) {
|
|
switch (cmd) {
|
|
|
|
case HPSA_DEVICE_RESET_MSG:
|
|
c->Request.CDBLen = 16;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE);
|
|
c->Request.Timeout = 0; /* Don't time out */
|
|
memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
|
|
c->Request.CDB[0] = cmd;
|
|
c->Request.CDB[1] = HPSA_RESET_TYPE_LUN;
|
|
/* If bytes 4-7 are zero, it means reset the */
|
|
/* LunID device */
|
|
c->Request.CDB[4] = 0x00;
|
|
c->Request.CDB[5] = 0x00;
|
|
c->Request.CDB[6] = 0x00;
|
|
c->Request.CDB[7] = 0x00;
|
|
break;
|
|
case HPSA_ABORT_MSG:
|
|
a = buff; /* point to command to be aborted */
|
|
dev_dbg(&h->pdev->dev, "Abort Tag:0x%016llx using request Tag:0x%016llx",
|
|
a->Header.tag, c->Header.tag);
|
|
tlower = (u32) (a->Header.tag >> 32);
|
|
tupper = (u32) (a->Header.tag & 0x0ffffffffULL);
|
|
c->Request.CDBLen = 16;
|
|
c->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(cmd_type,
|
|
ATTR_SIMPLE, XFER_WRITE);
|
|
c->Request.Timeout = 0; /* Don't time out */
|
|
c->Request.CDB[0] = HPSA_TASK_MANAGEMENT;
|
|
c->Request.CDB[1] = HPSA_TMF_ABORT_TASK;
|
|
c->Request.CDB[2] = 0x00; /* reserved */
|
|
c->Request.CDB[3] = 0x00; /* reserved */
|
|
/* Tag to abort goes in CDB[4]-CDB[11] */
|
|
c->Request.CDB[4] = tlower & 0xFF;
|
|
c->Request.CDB[5] = (tlower >> 8) & 0xFF;
|
|
c->Request.CDB[6] = (tlower >> 16) & 0xFF;
|
|
c->Request.CDB[7] = (tlower >> 24) & 0xFF;
|
|
c->Request.CDB[8] = tupper & 0xFF;
|
|
c->Request.CDB[9] = (tupper >> 8) & 0xFF;
|
|
c->Request.CDB[10] = (tupper >> 16) & 0xFF;
|
|
c->Request.CDB[11] = (tupper >> 24) & 0xFF;
|
|
c->Request.CDB[12] = 0x00; /* reserved */
|
|
c->Request.CDB[13] = 0x00; /* reserved */
|
|
c->Request.CDB[14] = 0x00; /* reserved */
|
|
c->Request.CDB[15] = 0x00; /* reserved */
|
|
break;
|
|
default:
|
|
dev_warn(&h->pdev->dev, "unknown message type %d\n",
|
|
cmd);
|
|
BUG();
|
|
}
|
|
} else {
|
|
dev_warn(&h->pdev->dev, "unknown command type %d\n", cmd_type);
|
|
BUG();
|
|
}
|
|
|
|
switch (GET_DIR(c->Request.type_attr_dir)) {
|
|
case XFER_READ:
|
|
pci_dir = PCI_DMA_FROMDEVICE;
|
|
break;
|
|
case XFER_WRITE:
|
|
pci_dir = PCI_DMA_TODEVICE;
|
|
break;
|
|
case XFER_NONE:
|
|
pci_dir = PCI_DMA_NONE;
|
|
break;
|
|
default:
|
|
pci_dir = PCI_DMA_BIDIRECTIONAL;
|
|
}
|
|
if (hpsa_map_one(h->pdev, c, buff, size, pci_dir))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Map (physical) PCI mem into (virtual) kernel space
|
|
*/
|
|
static void __iomem *remap_pci_mem(ulong base, ulong size)
|
|
{
|
|
ulong page_base = ((ulong) base) & PAGE_MASK;
|
|
ulong page_offs = ((ulong) base) - page_base;
|
|
void __iomem *page_remapped = ioremap_nocache(page_base,
|
|
page_offs + size);
|
|
|
|
return page_remapped ? (page_remapped + page_offs) : NULL;
|
|
}
|
|
|
|
/* Takes cmds off the submission queue and sends them to the hardware,
|
|
* then puts them on the queue of cmds waiting for completion.
|
|
* Assumes h->lock is held
|
|
*/
|
|
static void start_io(struct ctlr_info *h, unsigned long *flags)
|
|
{
|
|
struct CommandList *c;
|
|
|
|
while (!list_empty(&h->reqQ)) {
|
|
c = list_entry(h->reqQ.next, struct CommandList, list);
|
|
/* can't do anything if fifo is full */
|
|
if ((h->access.fifo_full(h))) {
|
|
h->fifo_recently_full = 1;
|
|
dev_warn(&h->pdev->dev, "fifo full\n");
|
|
break;
|
|
}
|
|
h->fifo_recently_full = 0;
|
|
|
|
/* Get the first entry from the Request Q */
|
|
removeQ(c);
|
|
h->Qdepth--;
|
|
|
|
/* Put job onto the completed Q */
|
|
addQ(&h->cmpQ, c);
|
|
atomic_inc(&h->commands_outstanding);
|
|
spin_unlock_irqrestore(&h->lock, *flags);
|
|
/* Tell the controller execute command */
|
|
h->access.submit_command(h, c);
|
|
spin_lock_irqsave(&h->lock, *flags);
|
|
}
|
|
}
|
|
|
|
static void lock_and_start_io(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
start_io(h, &flags);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
}
|
|
|
|
static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
|
|
{
|
|
return h->access.command_completed(h, q);
|
|
}
|
|
|
|
static inline bool interrupt_pending(struct ctlr_info *h)
|
|
{
|
|
return h->access.intr_pending(h);
|
|
}
|
|
|
|
static inline long interrupt_not_for_us(struct ctlr_info *h)
|
|
{
|
|
return (h->access.intr_pending(h) == 0) ||
|
|
(h->interrupts_enabled == 0);
|
|
}
|
|
|
|
static inline int bad_tag(struct ctlr_info *h, u32 tag_index,
|
|
u32 raw_tag)
|
|
{
|
|
if (unlikely(tag_index >= h->nr_cmds)) {
|
|
dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void finish_cmd(struct CommandList *c)
|
|
{
|
|
unsigned long flags;
|
|
int io_may_be_stalled = 0;
|
|
struct ctlr_info *h = c->h;
|
|
int count;
|
|
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
removeQ(c);
|
|
|
|
/*
|
|
* Check for possibly stalled i/o.
|
|
*
|
|
* If a fifo_full condition is encountered, requests will back up
|
|
* in h->reqQ. This queue is only emptied out by start_io which is
|
|
* only called when a new i/o request comes in. If no i/o's are
|
|
* forthcoming, the i/o's in h->reqQ can get stuck. So we call
|
|
* start_io from here if we detect such a danger.
|
|
*
|
|
* Normally, we shouldn't hit this case, but pounding on the
|
|
* CCISS_PASSTHRU ioctl can provoke it. Only call start_io if
|
|
* commands_outstanding is low. We want to avoid calling
|
|
* start_io from in here as much as possible, and esp. don't
|
|
* want to get in a cycle where we call start_io every time
|
|
* through here.
|
|
*/
|
|
count = atomic_read(&h->commands_outstanding);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (unlikely(h->fifo_recently_full) && count < 5)
|
|
io_may_be_stalled = 1;
|
|
|
|
dial_up_lockup_detection_on_fw_flash_complete(c->h, c);
|
|
if (likely(c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_SCSI
|
|
|| c->cmd_type == CMD_IOACCEL2))
|
|
complete_scsi_command(c);
|
|
else if (c->cmd_type == CMD_IOCTL_PEND)
|
|
complete(c->waiting);
|
|
if (unlikely(io_may_be_stalled))
|
|
lock_and_start_io(h);
|
|
}
|
|
|
|
static inline u32 hpsa_tag_contains_index(u32 tag)
|
|
{
|
|
return tag & DIRECT_LOOKUP_BIT;
|
|
}
|
|
|
|
static inline u32 hpsa_tag_to_index(u32 tag)
|
|
{
|
|
return tag >> DIRECT_LOOKUP_SHIFT;
|
|
}
|
|
|
|
|
|
static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag)
|
|
{
|
|
#define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
|
|
#define HPSA_SIMPLE_ERROR_BITS 0x03
|
|
if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
|
|
return tag & ~HPSA_SIMPLE_ERROR_BITS;
|
|
return tag & ~HPSA_PERF_ERROR_BITS;
|
|
}
|
|
|
|
/* process completion of an indexed ("direct lookup") command */
|
|
static inline void process_indexed_cmd(struct ctlr_info *h,
|
|
u32 raw_tag)
|
|
{
|
|
u32 tag_index;
|
|
struct CommandList *c;
|
|
|
|
tag_index = hpsa_tag_to_index(raw_tag);
|
|
if (!bad_tag(h, tag_index, raw_tag)) {
|
|
c = h->cmd_pool + tag_index;
|
|
finish_cmd(c);
|
|
}
|
|
}
|
|
|
|
/* process completion of a non-indexed command */
|
|
static inline void process_nonindexed_cmd(struct ctlr_info *h,
|
|
u32 raw_tag)
|
|
{
|
|
u32 tag;
|
|
struct CommandList *c = NULL;
|
|
unsigned long flags;
|
|
|
|
tag = hpsa_tag_discard_error_bits(h, raw_tag);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
list_for_each_entry(c, &h->cmpQ, list) {
|
|
if ((c->busaddr & 0xFFFFFFE0) == (tag & 0xFFFFFFE0)) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
finish_cmd(c);
|
|
return;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
bad_tag(h, h->nr_cmds + 1, raw_tag);
|
|
}
|
|
|
|
/* Some controllers, like p400, will give us one interrupt
|
|
* after a soft reset, even if we turned interrupts off.
|
|
* Only need to check for this in the hpsa_xxx_discard_completions
|
|
* functions.
|
|
*/
|
|
static int ignore_bogus_interrupt(struct ctlr_info *h)
|
|
{
|
|
if (likely(!reset_devices))
|
|
return 0;
|
|
|
|
if (likely(h->interrupts_enabled))
|
|
return 0;
|
|
|
|
dev_info(&h->pdev->dev, "Received interrupt while interrupts disabled "
|
|
"(known firmware bug.) Ignoring.\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Convert &h->q[x] (passed to interrupt handlers) back to h.
|
|
* Relies on (h-q[x] == x) being true for x such that
|
|
* 0 <= x < MAX_REPLY_QUEUES.
|
|
*/
|
|
static struct ctlr_info *queue_to_hba(u8 *queue)
|
|
{
|
|
return container_of((queue - *queue), struct ctlr_info, q[0]);
|
|
}
|
|
|
|
static irqreturn_t hpsa_intx_discard_completions(int irq, void *queue)
|
|
{
|
|
struct ctlr_info *h = queue_to_hba(queue);
|
|
u8 q = *(u8 *) queue;
|
|
u32 raw_tag;
|
|
|
|
if (ignore_bogus_interrupt(h))
|
|
return IRQ_NONE;
|
|
|
|
if (interrupt_not_for_us(h))
|
|
return IRQ_NONE;
|
|
h->last_intr_timestamp = get_jiffies_64();
|
|
while (interrupt_pending(h)) {
|
|
raw_tag = get_next_completion(h, q);
|
|
while (raw_tag != FIFO_EMPTY)
|
|
raw_tag = next_command(h, q);
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t hpsa_msix_discard_completions(int irq, void *queue)
|
|
{
|
|
struct ctlr_info *h = queue_to_hba(queue);
|
|
u32 raw_tag;
|
|
u8 q = *(u8 *) queue;
|
|
|
|
if (ignore_bogus_interrupt(h))
|
|
return IRQ_NONE;
|
|
|
|
h->last_intr_timestamp = get_jiffies_64();
|
|
raw_tag = get_next_completion(h, q);
|
|
while (raw_tag != FIFO_EMPTY)
|
|
raw_tag = next_command(h, q);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t do_hpsa_intr_intx(int irq, void *queue)
|
|
{
|
|
struct ctlr_info *h = queue_to_hba((u8 *) queue);
|
|
u32 raw_tag;
|
|
u8 q = *(u8 *) queue;
|
|
|
|
if (interrupt_not_for_us(h))
|
|
return IRQ_NONE;
|
|
h->last_intr_timestamp = get_jiffies_64();
|
|
while (interrupt_pending(h)) {
|
|
raw_tag = get_next_completion(h, q);
|
|
while (raw_tag != FIFO_EMPTY) {
|
|
if (likely(hpsa_tag_contains_index(raw_tag)))
|
|
process_indexed_cmd(h, raw_tag);
|
|
else
|
|
process_nonindexed_cmd(h, raw_tag);
|
|
raw_tag = next_command(h, q);
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t do_hpsa_intr_msi(int irq, void *queue)
|
|
{
|
|
struct ctlr_info *h = queue_to_hba(queue);
|
|
u32 raw_tag;
|
|
u8 q = *(u8 *) queue;
|
|
|
|
h->last_intr_timestamp = get_jiffies_64();
|
|
raw_tag = get_next_completion(h, q);
|
|
while (raw_tag != FIFO_EMPTY) {
|
|
if (likely(hpsa_tag_contains_index(raw_tag)))
|
|
process_indexed_cmd(h, raw_tag);
|
|
else
|
|
process_nonindexed_cmd(h, raw_tag);
|
|
raw_tag = next_command(h, q);
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* Send a message CDB to the firmware. Careful, this only works
|
|
* in simple mode, not performant mode due to the tag lookup.
|
|
* We only ever use this immediately after a controller reset.
|
|
*/
|
|
static int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
|
|
unsigned char type)
|
|
{
|
|
struct Command {
|
|
struct CommandListHeader CommandHeader;
|
|
struct RequestBlock Request;
|
|
struct ErrDescriptor ErrorDescriptor;
|
|
};
|
|
struct Command *cmd;
|
|
static const size_t cmd_sz = sizeof(*cmd) +
|
|
sizeof(cmd->ErrorDescriptor);
|
|
dma_addr_t paddr64;
|
|
uint32_t paddr32, tag;
|
|
void __iomem *vaddr;
|
|
int i, err;
|
|
|
|
vaddr = pci_ioremap_bar(pdev, 0);
|
|
if (vaddr == NULL)
|
|
return -ENOMEM;
|
|
|
|
/* The Inbound Post Queue only accepts 32-bit physical addresses for the
|
|
* CCISS commands, so they must be allocated from the lower 4GiB of
|
|
* memory.
|
|
*/
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
iounmap(vaddr);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64);
|
|
if (cmd == NULL) {
|
|
iounmap(vaddr);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* This must fit, because of the 32-bit consistent DMA mask. Also,
|
|
* although there's no guarantee, we assume that the address is at
|
|
* least 4-byte aligned (most likely, it's page-aligned).
|
|
*/
|
|
paddr32 = paddr64;
|
|
|
|
cmd->CommandHeader.ReplyQueue = 0;
|
|
cmd->CommandHeader.SGList = 0;
|
|
cmd->CommandHeader.SGTotal = cpu_to_le16(0);
|
|
cmd->CommandHeader.tag = paddr32;
|
|
memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8);
|
|
|
|
cmd->Request.CDBLen = 16;
|
|
cmd->Request.type_attr_dir =
|
|
TYPE_ATTR_DIR(TYPE_MSG, ATTR_HEADOFQUEUE, XFER_NONE);
|
|
cmd->Request.Timeout = 0; /* Don't time out */
|
|
cmd->Request.CDB[0] = opcode;
|
|
cmd->Request.CDB[1] = type;
|
|
memset(&cmd->Request.CDB[2], 0, 14); /* rest of the CDB is reserved */
|
|
cmd->ErrorDescriptor.Addr =
|
|
cpu_to_le64((paddr32 + sizeof(*cmd)));
|
|
cmd->ErrorDescriptor.Len = cpu_to_le32(sizeof(struct ErrorInfo));
|
|
|
|
writel(paddr32, vaddr + SA5_REQUEST_PORT_OFFSET);
|
|
|
|
for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) {
|
|
tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
|
|
if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr32)
|
|
break;
|
|
msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS);
|
|
}
|
|
|
|
iounmap(vaddr);
|
|
|
|
/* we leak the DMA buffer here ... no choice since the controller could
|
|
* still complete the command.
|
|
*/
|
|
if (i == HPSA_MSG_SEND_RETRY_LIMIT) {
|
|
dev_err(&pdev->dev, "controller message %02x:%02x timed out\n",
|
|
opcode, type);
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
pci_free_consistent(pdev, cmd_sz, cmd, paddr64);
|
|
|
|
if (tag & HPSA_ERROR_BIT) {
|
|
dev_err(&pdev->dev, "controller message %02x:%02x failed\n",
|
|
opcode, type);
|
|
return -EIO;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "controller message %02x:%02x succeeded\n",
|
|
opcode, type);
|
|
return 0;
|
|
}
|
|
|
|
#define hpsa_noop(p) hpsa_message(p, 3, 0)
|
|
|
|
static int hpsa_controller_hard_reset(struct pci_dev *pdev,
|
|
void __iomem *vaddr, u32 use_doorbell)
|
|
{
|
|
u16 pmcsr;
|
|
int pos;
|
|
|
|
if (use_doorbell) {
|
|
/* For everything after the P600, the PCI power state method
|
|
* of resetting the controller doesn't work, so we have this
|
|
* other way using the doorbell register.
|
|
*/
|
|
dev_info(&pdev->dev, "using doorbell to reset controller\n");
|
|
writel(use_doorbell, vaddr + SA5_DOORBELL);
|
|
|
|
/* PMC hardware guys tell us we need a 10 second delay after
|
|
* doorbell reset and before any attempt to talk to the board
|
|
* at all to ensure that this actually works and doesn't fall
|
|
* over in some weird corner cases.
|
|
*/
|
|
msleep(10000);
|
|
} else { /* Try to do it the PCI power state way */
|
|
|
|
/* Quoting from the Open CISS Specification: "The Power
|
|
* Management Control/Status Register (CSR) controls the power
|
|
* state of the device. The normal operating state is D0,
|
|
* CSR=00h. The software off state is D3, CSR=03h. To reset
|
|
* the controller, place the interface device in D3 then to D0,
|
|
* this causes a secondary PCI reset which will reset the
|
|
* controller." */
|
|
|
|
pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
|
|
if (pos == 0) {
|
|
dev_err(&pdev->dev,
|
|
"hpsa_reset_controller: "
|
|
"PCI PM not supported\n");
|
|
return -ENODEV;
|
|
}
|
|
dev_info(&pdev->dev, "using PCI PM to reset controller\n");
|
|
/* enter the D3hot power management state */
|
|
pci_read_config_word(pdev, pos + PCI_PM_CTRL, &pmcsr);
|
|
pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
|
|
pmcsr |= PCI_D3hot;
|
|
pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
|
|
|
|
msleep(500);
|
|
|
|
/* enter the D0 power management state */
|
|
pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
|
|
pmcsr |= PCI_D0;
|
|
pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
|
|
|
|
/*
|
|
* The P600 requires a small delay when changing states.
|
|
* Otherwise we may think the board did not reset and we bail.
|
|
* This for kdump only and is particular to the P600.
|
|
*/
|
|
msleep(500);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void init_driver_version(char *driver_version, int len)
|
|
{
|
|
memset(driver_version, 0, len);
|
|
strncpy(driver_version, HPSA " " HPSA_DRIVER_VERSION, len - 1);
|
|
}
|
|
|
|
static int write_driver_ver_to_cfgtable(struct CfgTable __iomem *cfgtable)
|
|
{
|
|
char *driver_version;
|
|
int i, size = sizeof(cfgtable->driver_version);
|
|
|
|
driver_version = kmalloc(size, GFP_KERNEL);
|
|
if (!driver_version)
|
|
return -ENOMEM;
|
|
|
|
init_driver_version(driver_version, size);
|
|
for (i = 0; i < size; i++)
|
|
writeb(driver_version[i], &cfgtable->driver_version[i]);
|
|
kfree(driver_version);
|
|
return 0;
|
|
}
|
|
|
|
static void read_driver_ver_from_cfgtable(struct CfgTable __iomem *cfgtable,
|
|
unsigned char *driver_ver)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(cfgtable->driver_version); i++)
|
|
driver_ver[i] = readb(&cfgtable->driver_version[i]);
|
|
}
|
|
|
|
static int controller_reset_failed(struct CfgTable __iomem *cfgtable)
|
|
{
|
|
|
|
char *driver_ver, *old_driver_ver;
|
|
int rc, size = sizeof(cfgtable->driver_version);
|
|
|
|
old_driver_ver = kmalloc(2 * size, GFP_KERNEL);
|
|
if (!old_driver_ver)
|
|
return -ENOMEM;
|
|
driver_ver = old_driver_ver + size;
|
|
|
|
/* After a reset, the 32 bytes of "driver version" in the cfgtable
|
|
* should have been changed, otherwise we know the reset failed.
|
|
*/
|
|
init_driver_version(old_driver_ver, size);
|
|
read_driver_ver_from_cfgtable(cfgtable, driver_ver);
|
|
rc = !memcmp(driver_ver, old_driver_ver, size);
|
|
kfree(old_driver_ver);
|
|
return rc;
|
|
}
|
|
/* This does a hard reset of the controller using PCI power management
|
|
* states or the using the doorbell register.
|
|
*/
|
|
static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
|
|
{
|
|
u64 cfg_offset;
|
|
u32 cfg_base_addr;
|
|
u64 cfg_base_addr_index;
|
|
void __iomem *vaddr;
|
|
unsigned long paddr;
|
|
u32 misc_fw_support;
|
|
int rc;
|
|
struct CfgTable __iomem *cfgtable;
|
|
u32 use_doorbell;
|
|
u32 board_id;
|
|
u16 command_register;
|
|
|
|
/* For controllers as old as the P600, this is very nearly
|
|
* the same thing as
|
|
*
|
|
* pci_save_state(pci_dev);
|
|
* pci_set_power_state(pci_dev, PCI_D3hot);
|
|
* pci_set_power_state(pci_dev, PCI_D0);
|
|
* pci_restore_state(pci_dev);
|
|
*
|
|
* For controllers newer than the P600, the pci power state
|
|
* method of resetting doesn't work so we have another way
|
|
* using the doorbell register.
|
|
*/
|
|
|
|
rc = hpsa_lookup_board_id(pdev, &board_id);
|
|
if (rc < 0 || !ctlr_is_resettable(board_id)) {
|
|
dev_warn(&pdev->dev, "Not resetting device.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* if controller is soft- but not hard resettable... */
|
|
if (!ctlr_is_hard_resettable(board_id))
|
|
return -ENOTSUPP; /* try soft reset later. */
|
|
|
|
/* Save the PCI command register */
|
|
pci_read_config_word(pdev, 4, &command_register);
|
|
pci_save_state(pdev);
|
|
|
|
/* find the first memory BAR, so we can find the cfg table */
|
|
rc = hpsa_pci_find_memory_BAR(pdev, &paddr);
|
|
if (rc)
|
|
return rc;
|
|
vaddr = remap_pci_mem(paddr, 0x250);
|
|
if (!vaddr)
|
|
return -ENOMEM;
|
|
|
|
/* find cfgtable in order to check if reset via doorbell is supported */
|
|
rc = hpsa_find_cfg_addrs(pdev, vaddr, &cfg_base_addr,
|
|
&cfg_base_addr_index, &cfg_offset);
|
|
if (rc)
|
|
goto unmap_vaddr;
|
|
cfgtable = remap_pci_mem(pci_resource_start(pdev,
|
|
cfg_base_addr_index) + cfg_offset, sizeof(*cfgtable));
|
|
if (!cfgtable) {
|
|
rc = -ENOMEM;
|
|
goto unmap_vaddr;
|
|
}
|
|
rc = write_driver_ver_to_cfgtable(cfgtable);
|
|
if (rc)
|
|
goto unmap_vaddr;
|
|
|
|
/* If reset via doorbell register is supported, use that.
|
|
* There are two such methods. Favor the newest method.
|
|
*/
|
|
misc_fw_support = readl(&cfgtable->misc_fw_support);
|
|
use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET2;
|
|
if (use_doorbell) {
|
|
use_doorbell = DOORBELL_CTLR_RESET2;
|
|
} else {
|
|
use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
|
|
if (use_doorbell) {
|
|
dev_warn(&pdev->dev, "Soft reset not supported. "
|
|
"Firmware update is required.\n");
|
|
rc = -ENOTSUPP; /* try soft reset */
|
|
goto unmap_cfgtable;
|
|
}
|
|
}
|
|
|
|
rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell);
|
|
if (rc)
|
|
goto unmap_cfgtable;
|
|
|
|
pci_restore_state(pdev);
|
|
pci_write_config_word(pdev, 4, command_register);
|
|
|
|
/* Some devices (notably the HP Smart Array 5i Controller)
|
|
need a little pause here */
|
|
msleep(HPSA_POST_RESET_PAUSE_MSECS);
|
|
|
|
rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY);
|
|
if (rc) {
|
|
dev_warn(&pdev->dev,
|
|
"failed waiting for board to become ready "
|
|
"after hard reset\n");
|
|
goto unmap_cfgtable;
|
|
}
|
|
|
|
rc = controller_reset_failed(vaddr);
|
|
if (rc < 0)
|
|
goto unmap_cfgtable;
|
|
if (rc) {
|
|
dev_warn(&pdev->dev, "Unable to successfully reset "
|
|
"controller. Will try soft reset.\n");
|
|
rc = -ENOTSUPP;
|
|
} else {
|
|
dev_info(&pdev->dev, "board ready after hard reset.\n");
|
|
}
|
|
|
|
unmap_cfgtable:
|
|
iounmap(cfgtable);
|
|
|
|
unmap_vaddr:
|
|
iounmap(vaddr);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* We cannot read the structure directly, for portability we must use
|
|
* the io functions.
|
|
* This is for debug only.
|
|
*/
|
|
static void print_cfg_table(struct device *dev, struct CfgTable __iomem *tb)
|
|
{
|
|
#ifdef HPSA_DEBUG
|
|
int i;
|
|
char temp_name[17];
|
|
|
|
dev_info(dev, "Controller Configuration information\n");
|
|
dev_info(dev, "------------------------------------\n");
|
|
for (i = 0; i < 4; i++)
|
|
temp_name[i] = readb(&(tb->Signature[i]));
|
|
temp_name[4] = '\0';
|
|
dev_info(dev, " Signature = %s\n", temp_name);
|
|
dev_info(dev, " Spec Number = %d\n", readl(&(tb->SpecValence)));
|
|
dev_info(dev, " Transport methods supported = 0x%x\n",
|
|
readl(&(tb->TransportSupport)));
|
|
dev_info(dev, " Transport methods active = 0x%x\n",
|
|
readl(&(tb->TransportActive)));
|
|
dev_info(dev, " Requested transport Method = 0x%x\n",
|
|
readl(&(tb->HostWrite.TransportRequest)));
|
|
dev_info(dev, " Coalesce Interrupt Delay = 0x%x\n",
|
|
readl(&(tb->HostWrite.CoalIntDelay)));
|
|
dev_info(dev, " Coalesce Interrupt Count = 0x%x\n",
|
|
readl(&(tb->HostWrite.CoalIntCount)));
|
|
dev_info(dev, " Max outstanding commands = 0x%d\n",
|
|
readl(&(tb->CmdsOutMax)));
|
|
dev_info(dev, " Bus Types = 0x%x\n", readl(&(tb->BusTypes)));
|
|
for (i = 0; i < 16; i++)
|
|
temp_name[i] = readb(&(tb->ServerName[i]));
|
|
temp_name[16] = '\0';
|
|
dev_info(dev, " Server Name = %s\n", temp_name);
|
|
dev_info(dev, " Heartbeat Counter = 0x%x\n\n\n",
|
|
readl(&(tb->HeartBeat)));
|
|
#endif /* HPSA_DEBUG */
|
|
}
|
|
|
|
static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr)
|
|
{
|
|
int i, offset, mem_type, bar_type;
|
|
|
|
if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */
|
|
return 0;
|
|
offset = 0;
|
|
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
|
|
bar_type = pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE;
|
|
if (bar_type == PCI_BASE_ADDRESS_SPACE_IO)
|
|
offset += 4;
|
|
else {
|
|
mem_type = pci_resource_flags(pdev, i) &
|
|
PCI_BASE_ADDRESS_MEM_TYPE_MASK;
|
|
switch (mem_type) {
|
|
case PCI_BASE_ADDRESS_MEM_TYPE_32:
|
|
case PCI_BASE_ADDRESS_MEM_TYPE_1M:
|
|
offset += 4; /* 32 bit */
|
|
break;
|
|
case PCI_BASE_ADDRESS_MEM_TYPE_64:
|
|
offset += 8;
|
|
break;
|
|
default: /* reserved in PCI 2.2 */
|
|
dev_warn(&pdev->dev,
|
|
"base address is invalid\n");
|
|
return -1;
|
|
break;
|
|
}
|
|
}
|
|
if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0)
|
|
return i + 1;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/* If MSI/MSI-X is supported by the kernel we will try to enable it on
|
|
* controllers that are capable. If not, we use IO-APIC mode.
|
|
*/
|
|
|
|
static void hpsa_interrupt_mode(struct ctlr_info *h)
|
|
{
|
|
#ifdef CONFIG_PCI_MSI
|
|
int err, i;
|
|
struct msix_entry hpsa_msix_entries[MAX_REPLY_QUEUES];
|
|
|
|
for (i = 0; i < MAX_REPLY_QUEUES; i++) {
|
|
hpsa_msix_entries[i].vector = 0;
|
|
hpsa_msix_entries[i].entry = i;
|
|
}
|
|
|
|
/* Some boards advertise MSI but don't really support it */
|
|
if ((h->board_id == 0x40700E11) || (h->board_id == 0x40800E11) ||
|
|
(h->board_id == 0x40820E11) || (h->board_id == 0x40830E11))
|
|
goto default_int_mode;
|
|
if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) {
|
|
dev_info(&h->pdev->dev, "MSIX\n");
|
|
h->msix_vector = MAX_REPLY_QUEUES;
|
|
if (h->msix_vector > num_online_cpus())
|
|
h->msix_vector = num_online_cpus();
|
|
err = pci_enable_msix_range(h->pdev, hpsa_msix_entries,
|
|
1, h->msix_vector);
|
|
if (err < 0) {
|
|
dev_warn(&h->pdev->dev, "MSI-X init failed %d\n", err);
|
|
h->msix_vector = 0;
|
|
goto single_msi_mode;
|
|
} else if (err < h->msix_vector) {
|
|
dev_warn(&h->pdev->dev, "only %d MSI-X vectors "
|
|
"available\n", err);
|
|
}
|
|
h->msix_vector = err;
|
|
for (i = 0; i < h->msix_vector; i++)
|
|
h->intr[i] = hpsa_msix_entries[i].vector;
|
|
return;
|
|
}
|
|
single_msi_mode:
|
|
if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {
|
|
dev_info(&h->pdev->dev, "MSI\n");
|
|
if (!pci_enable_msi(h->pdev))
|
|
h->msi_vector = 1;
|
|
else
|
|
dev_warn(&h->pdev->dev, "MSI init failed\n");
|
|
}
|
|
default_int_mode:
|
|
#endif /* CONFIG_PCI_MSI */
|
|
/* if we get here we're going to use the default interrupt mode */
|
|
h->intr[h->intr_mode] = h->pdev->irq;
|
|
}
|
|
|
|
static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id)
|
|
{
|
|
int i;
|
|
u32 subsystem_vendor_id, subsystem_device_id;
|
|
|
|
subsystem_vendor_id = pdev->subsystem_vendor;
|
|
subsystem_device_id = pdev->subsystem_device;
|
|
*board_id = ((subsystem_device_id << 16) & 0xffff0000) |
|
|
subsystem_vendor_id;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(products); i++)
|
|
if (*board_id == products[i].board_id)
|
|
return i;
|
|
|
|
if ((subsystem_vendor_id != PCI_VENDOR_ID_HP &&
|
|
subsystem_vendor_id != PCI_VENDOR_ID_COMPAQ) ||
|
|
!hpsa_allow_any) {
|
|
dev_warn(&pdev->dev, "unrecognized board ID: "
|
|
"0x%08x, ignoring.\n", *board_id);
|
|
return -ENODEV;
|
|
}
|
|
return ARRAY_SIZE(products) - 1; /* generic unknown smart array */
|
|
}
|
|
|
|
static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
|
|
unsigned long *memory_bar)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++)
|
|
if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
|
|
/* addressing mode bits already removed */
|
|
*memory_bar = pci_resource_start(pdev, i);
|
|
dev_dbg(&pdev->dev, "memory BAR = %lx\n",
|
|
*memory_bar);
|
|
return 0;
|
|
}
|
|
dev_warn(&pdev->dev, "no memory BAR found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr,
|
|
int wait_for_ready)
|
|
{
|
|
int i, iterations;
|
|
u32 scratchpad;
|
|
if (wait_for_ready)
|
|
iterations = HPSA_BOARD_READY_ITERATIONS;
|
|
else
|
|
iterations = HPSA_BOARD_NOT_READY_ITERATIONS;
|
|
|
|
for (i = 0; i < iterations; i++) {
|
|
scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
|
|
if (wait_for_ready) {
|
|
if (scratchpad == HPSA_FIRMWARE_READY)
|
|
return 0;
|
|
} else {
|
|
if (scratchpad != HPSA_FIRMWARE_READY)
|
|
return 0;
|
|
}
|
|
msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
|
|
}
|
|
dev_warn(&pdev->dev, "board not ready, timed out.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
|
|
u32 *cfg_base_addr, u64 *cfg_base_addr_index,
|
|
u64 *cfg_offset)
|
|
{
|
|
*cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET);
|
|
*cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET);
|
|
*cfg_base_addr &= (u32) 0x0000ffff;
|
|
*cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr);
|
|
if (*cfg_base_addr_index == -1) {
|
|
dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n");
|
|
return -ENODEV;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_find_cfgtables(struct ctlr_info *h)
|
|
{
|
|
u64 cfg_offset;
|
|
u32 cfg_base_addr;
|
|
u64 cfg_base_addr_index;
|
|
u32 trans_offset;
|
|
int rc;
|
|
|
|
rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr,
|
|
&cfg_base_addr_index, &cfg_offset);
|
|
if (rc)
|
|
return rc;
|
|
h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev,
|
|
cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable));
|
|
if (!h->cfgtable)
|
|
return -ENOMEM;
|
|
rc = write_driver_ver_to_cfgtable(h->cfgtable);
|
|
if (rc)
|
|
return rc;
|
|
/* Find performant mode table. */
|
|
trans_offset = readl(&h->cfgtable->TransMethodOffset);
|
|
h->transtable = remap_pci_mem(pci_resource_start(h->pdev,
|
|
cfg_base_addr_index)+cfg_offset+trans_offset,
|
|
sizeof(*h->transtable));
|
|
if (!h->transtable)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
|
|
{
|
|
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
|
|
|
|
/* Limit commands in memory limited kdump scenario. */
|
|
if (reset_devices && h->max_commands > 32)
|
|
h->max_commands = 32;
|
|
|
|
if (h->max_commands < 16) {
|
|
dev_warn(&h->pdev->dev, "Controller reports "
|
|
"max supported commands of %d, an obvious lie. "
|
|
"Using 16. Ensure that firmware is up to date.\n",
|
|
h->max_commands);
|
|
h->max_commands = 16;
|
|
}
|
|
}
|
|
|
|
/* Interrogate the hardware for some limits:
|
|
* max commands, max SG elements without chaining, and with chaining,
|
|
* SG chain block size, etc.
|
|
*/
|
|
static void hpsa_find_board_params(struct ctlr_info *h)
|
|
{
|
|
hpsa_get_max_perf_mode_cmds(h);
|
|
h->nr_cmds = h->max_commands - 4; /* Allow room for some ioctls */
|
|
h->maxsgentries = readl(&(h->cfgtable->MaxScatterGatherElements));
|
|
h->fw_support = readl(&(h->cfgtable->misc_fw_support));
|
|
/*
|
|
* Limit in-command s/g elements to 32 save dma'able memory.
|
|
* Howvever spec says if 0, use 31
|
|
*/
|
|
h->max_cmd_sg_entries = 31;
|
|
if (h->maxsgentries > 512) {
|
|
h->max_cmd_sg_entries = 32;
|
|
h->chainsize = h->maxsgentries - h->max_cmd_sg_entries;
|
|
h->maxsgentries--; /* save one for chain pointer */
|
|
} else {
|
|
h->chainsize = 0;
|
|
h->maxsgentries = 31; /* default to traditional values */
|
|
}
|
|
|
|
/* Find out what task management functions are supported and cache */
|
|
h->TMFSupportFlags = readl(&(h->cfgtable->TMFSupportFlags));
|
|
if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags))
|
|
dev_warn(&h->pdev->dev, "Physical aborts not supported\n");
|
|
if (!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
|
|
dev_warn(&h->pdev->dev, "Logical aborts not supported\n");
|
|
}
|
|
|
|
static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
|
|
{
|
|
if (!check_signature(h->cfgtable->Signature, "CISS", 4)) {
|
|
dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static inline void hpsa_set_driver_support_bits(struct ctlr_info *h)
|
|
{
|
|
u32 driver_support;
|
|
|
|
driver_support = readl(&(h->cfgtable->driver_support));
|
|
/* Need to enable prefetch in the SCSI core for 6400 in x86 */
|
|
#ifdef CONFIG_X86
|
|
driver_support |= ENABLE_SCSI_PREFETCH;
|
|
#endif
|
|
driver_support |= ENABLE_UNIT_ATTN;
|
|
writel(driver_support, &(h->cfgtable->driver_support));
|
|
}
|
|
|
|
/* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
|
|
* in a prefetch beyond physical memory.
|
|
*/
|
|
static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h)
|
|
{
|
|
u32 dma_prefetch;
|
|
|
|
if (h->board_id != 0x3225103C)
|
|
return;
|
|
dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG);
|
|
dma_prefetch |= 0x8000;
|
|
writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG);
|
|
}
|
|
|
|
static void hpsa_wait_for_clear_event_notify_ack(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
u32 doorbell_value;
|
|
unsigned long flags;
|
|
/* wait until the clear_event_notify bit 6 is cleared by controller. */
|
|
for (i = 0; i < MAX_CONFIG_WAIT; i++) {
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
doorbell_value = readl(h->vaddr + SA5_DOORBELL);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (!(doorbell_value & DOORBELL_CLEAR_EVENTS))
|
|
break;
|
|
/* delay and try again */
|
|
msleep(20);
|
|
}
|
|
}
|
|
|
|
static void hpsa_wait_for_mode_change_ack(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
u32 doorbell_value;
|
|
unsigned long flags;
|
|
|
|
/* under certain very rare conditions, this can take awhile.
|
|
* (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
|
|
* as we enter this code.)
|
|
*/
|
|
for (i = 0; i < MAX_CONFIG_WAIT; i++) {
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
doorbell_value = readl(h->vaddr + SA5_DOORBELL);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (!(doorbell_value & CFGTBL_ChangeReq))
|
|
break;
|
|
/* delay and try again */
|
|
usleep_range(10000, 20000);
|
|
}
|
|
}
|
|
|
|
static int hpsa_enter_simple_mode(struct ctlr_info *h)
|
|
{
|
|
u32 trans_support;
|
|
|
|
trans_support = readl(&(h->cfgtable->TransportSupport));
|
|
if (!(trans_support & SIMPLE_MODE))
|
|
return -ENOTSUPP;
|
|
|
|
h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
|
|
|
|
/* Update the field, and then ring the doorbell */
|
|
writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest));
|
|
writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi);
|
|
writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
|
|
hpsa_wait_for_mode_change_ack(h);
|
|
print_cfg_table(&h->pdev->dev, h->cfgtable);
|
|
if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple))
|
|
goto error;
|
|
h->transMethod = CFGTBL_Trans_Simple;
|
|
return 0;
|
|
error:
|
|
dev_warn(&h->pdev->dev, "unable to get board into simple mode\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int hpsa_pci_init(struct ctlr_info *h)
|
|
{
|
|
int prod_index, err;
|
|
|
|
prod_index = hpsa_lookup_board_id(h->pdev, &h->board_id);
|
|
if (prod_index < 0)
|
|
return -ENODEV;
|
|
h->product_name = products[prod_index].product_name;
|
|
h->access = *(products[prod_index].access);
|
|
|
|
pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
|
|
PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
|
|
|
|
err = pci_enable_device(h->pdev);
|
|
if (err) {
|
|
dev_warn(&h->pdev->dev, "unable to enable PCI device\n");
|
|
return err;
|
|
}
|
|
|
|
err = pci_request_regions(h->pdev, HPSA);
|
|
if (err) {
|
|
dev_err(&h->pdev->dev,
|
|
"cannot obtain PCI resources, aborting\n");
|
|
return err;
|
|
}
|
|
|
|
pci_set_master(h->pdev);
|
|
|
|
hpsa_interrupt_mode(h);
|
|
err = hpsa_pci_find_memory_BAR(h->pdev, &h->paddr);
|
|
if (err)
|
|
goto err_out_free_res;
|
|
h->vaddr = remap_pci_mem(h->paddr, 0x250);
|
|
if (!h->vaddr) {
|
|
err = -ENOMEM;
|
|
goto err_out_free_res;
|
|
}
|
|
err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
|
|
if (err)
|
|
goto err_out_free_res;
|
|
err = hpsa_find_cfgtables(h);
|
|
if (err)
|
|
goto err_out_free_res;
|
|
hpsa_find_board_params(h);
|
|
|
|
if (!hpsa_CISS_signature_present(h)) {
|
|
err = -ENODEV;
|
|
goto err_out_free_res;
|
|
}
|
|
hpsa_set_driver_support_bits(h);
|
|
hpsa_p600_dma_prefetch_quirk(h);
|
|
err = hpsa_enter_simple_mode(h);
|
|
if (err)
|
|
goto err_out_free_res;
|
|
return 0;
|
|
|
|
err_out_free_res:
|
|
if (h->transtable)
|
|
iounmap(h->transtable);
|
|
if (h->cfgtable)
|
|
iounmap(h->cfgtable);
|
|
if (h->vaddr)
|
|
iounmap(h->vaddr);
|
|
pci_disable_device(h->pdev);
|
|
pci_release_regions(h->pdev);
|
|
return err;
|
|
}
|
|
|
|
static void hpsa_hba_inquiry(struct ctlr_info *h)
|
|
{
|
|
int rc;
|
|
|
|
#define HBA_INQUIRY_BYTE_COUNT 64
|
|
h->hba_inquiry_data = kmalloc(HBA_INQUIRY_BYTE_COUNT, GFP_KERNEL);
|
|
if (!h->hba_inquiry_data)
|
|
return;
|
|
rc = hpsa_scsi_do_inquiry(h, RAID_CTLR_LUNID, 0,
|
|
h->hba_inquiry_data, HBA_INQUIRY_BYTE_COUNT);
|
|
if (rc != 0) {
|
|
kfree(h->hba_inquiry_data);
|
|
h->hba_inquiry_data = NULL;
|
|
}
|
|
}
|
|
|
|
static int hpsa_init_reset_devices(struct pci_dev *pdev)
|
|
{
|
|
int rc, i;
|
|
|
|
if (!reset_devices)
|
|
return 0;
|
|
|
|
/* kdump kernel is loading, we don't know in which state is
|
|
* the pci interface. The dev->enable_cnt is equal zero
|
|
* so we call enable+disable, wait a while and switch it on.
|
|
*/
|
|
rc = pci_enable_device(pdev);
|
|
if (rc) {
|
|
dev_warn(&pdev->dev, "Failed to enable PCI device\n");
|
|
return -ENODEV;
|
|
}
|
|
pci_disable_device(pdev);
|
|
msleep(260); /* a randomly chosen number */
|
|
rc = pci_enable_device(pdev);
|
|
if (rc) {
|
|
dev_warn(&pdev->dev, "failed to enable device.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
/* Reset the controller with a PCI power-cycle or via doorbell */
|
|
rc = hpsa_kdump_hard_reset_controller(pdev);
|
|
|
|
/* -ENOTSUPP here means we cannot reset the controller
|
|
* but it's already (and still) up and running in
|
|
* "performant mode". Or, it might be 640x, which can't reset
|
|
* due to concerns about shared bbwc between 6402/6404 pair.
|
|
*/
|
|
if (rc) {
|
|
if (rc != -ENOTSUPP) /* just try to do the kdump anyhow. */
|
|
rc = -ENODEV;
|
|
goto out_disable;
|
|
}
|
|
|
|
/* Now try to get the controller to respond to a no-op */
|
|
dev_warn(&pdev->dev, "Waiting for controller to respond to no-op\n");
|
|
for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) {
|
|
if (hpsa_noop(pdev) == 0)
|
|
break;
|
|
else
|
|
dev_warn(&pdev->dev, "no-op failed%s\n",
|
|
(i < 11 ? "; re-trying" : ""));
|
|
}
|
|
|
|
out_disable:
|
|
|
|
pci_disable_device(pdev);
|
|
return rc;
|
|
}
|
|
|
|
static int hpsa_allocate_cmd_pool(struct ctlr_info *h)
|
|
{
|
|
h->cmd_pool_bits = kzalloc(
|
|
DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) *
|
|
sizeof(unsigned long), GFP_KERNEL);
|
|
h->cmd_pool = pci_alloc_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->cmd_pool),
|
|
&(h->cmd_pool_dhandle));
|
|
h->errinfo_pool = pci_alloc_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->errinfo_pool),
|
|
&(h->errinfo_pool_dhandle));
|
|
if ((h->cmd_pool_bits == NULL)
|
|
|| (h->cmd_pool == NULL)
|
|
|| (h->errinfo_pool == NULL)) {
|
|
dev_err(&h->pdev->dev, "out of memory in %s", __func__);
|
|
return -ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void hpsa_free_cmd_pool(struct ctlr_info *h)
|
|
{
|
|
kfree(h->cmd_pool_bits);
|
|
if (h->cmd_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(struct CommandList),
|
|
h->cmd_pool, h->cmd_pool_dhandle);
|
|
if (h->ioaccel2_cmd_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
|
|
h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
|
|
if (h->errinfo_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(struct ErrorInfo),
|
|
h->errinfo_pool,
|
|
h->errinfo_pool_dhandle);
|
|
if (h->ioaccel_cmd_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(struct io_accel1_cmd),
|
|
h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
|
|
}
|
|
|
|
static void hpsa_irq_affinity_hints(struct ctlr_info *h)
|
|
{
|
|
int i, cpu, rc;
|
|
|
|
cpu = cpumask_first(cpu_online_mask);
|
|
for (i = 0; i < h->msix_vector; i++) {
|
|
rc = irq_set_affinity_hint(h->intr[i], get_cpu_mask(cpu));
|
|
cpu = cpumask_next(cpu, cpu_online_mask);
|
|
}
|
|
}
|
|
|
|
static int hpsa_request_irq(struct ctlr_info *h,
|
|
irqreturn_t (*msixhandler)(int, void *),
|
|
irqreturn_t (*intxhandler)(int, void *))
|
|
{
|
|
int rc, i;
|
|
|
|
/*
|
|
* initialize h->q[x] = x so that interrupt handlers know which
|
|
* queue to process.
|
|
*/
|
|
for (i = 0; i < MAX_REPLY_QUEUES; i++)
|
|
h->q[i] = (u8) i;
|
|
|
|
if (h->intr_mode == PERF_MODE_INT && h->msix_vector > 0) {
|
|
/* If performant mode and MSI-X, use multiple reply queues */
|
|
for (i = 0; i < h->msix_vector; i++)
|
|
rc = request_irq(h->intr[i], msixhandler,
|
|
0, h->devname,
|
|
&h->q[i]);
|
|
hpsa_irq_affinity_hints(h);
|
|
} else {
|
|
/* Use single reply pool */
|
|
if (h->msix_vector > 0 || h->msi_vector) {
|
|
rc = request_irq(h->intr[h->intr_mode],
|
|
msixhandler, 0, h->devname,
|
|
&h->q[h->intr_mode]);
|
|
} else {
|
|
rc = request_irq(h->intr[h->intr_mode],
|
|
intxhandler, IRQF_SHARED, h->devname,
|
|
&h->q[h->intr_mode]);
|
|
}
|
|
}
|
|
if (rc) {
|
|
dev_err(&h->pdev->dev, "unable to get irq %d for %s\n",
|
|
h->intr[h->intr_mode], h->devname);
|
|
return -ENODEV;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hpsa_kdump_soft_reset(struct ctlr_info *h)
|
|
{
|
|
if (hpsa_send_host_reset(h, RAID_CTLR_LUNID,
|
|
HPSA_RESET_TYPE_CONTROLLER)) {
|
|
dev_warn(&h->pdev->dev, "Resetting array controller failed.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n");
|
|
if (hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY)) {
|
|
dev_warn(&h->pdev->dev, "Soft reset had no effect.\n");
|
|
return -1;
|
|
}
|
|
|
|
dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n");
|
|
if (hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY)) {
|
|
dev_warn(&h->pdev->dev, "Board failed to become ready "
|
|
"after soft reset.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void free_irqs(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
|
|
if (!h->msix_vector || h->intr_mode != PERF_MODE_INT) {
|
|
/* Single reply queue, only one irq to free */
|
|
i = h->intr_mode;
|
|
irq_set_affinity_hint(h->intr[i], NULL);
|
|
free_irq(h->intr[i], &h->q[i]);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < h->msix_vector; i++) {
|
|
irq_set_affinity_hint(h->intr[i], NULL);
|
|
free_irq(h->intr[i], &h->q[i]);
|
|
}
|
|
}
|
|
|
|
static void hpsa_free_irqs_and_disable_msix(struct ctlr_info *h)
|
|
{
|
|
free_irqs(h);
|
|
#ifdef CONFIG_PCI_MSI
|
|
if (h->msix_vector) {
|
|
if (h->pdev->msix_enabled)
|
|
pci_disable_msix(h->pdev);
|
|
} else if (h->msi_vector) {
|
|
if (h->pdev->msi_enabled)
|
|
pci_disable_msi(h->pdev);
|
|
}
|
|
#endif /* CONFIG_PCI_MSI */
|
|
}
|
|
|
|
static void hpsa_free_reply_queues(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < h->nreply_queues; i++) {
|
|
if (!h->reply_queue[i].head)
|
|
continue;
|
|
pci_free_consistent(h->pdev, h->reply_queue_size,
|
|
h->reply_queue[i].head, h->reply_queue[i].busaddr);
|
|
h->reply_queue[i].head = NULL;
|
|
h->reply_queue[i].busaddr = 0;
|
|
}
|
|
}
|
|
|
|
static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h)
|
|
{
|
|
hpsa_free_irqs_and_disable_msix(h);
|
|
hpsa_free_sg_chain_blocks(h);
|
|
hpsa_free_cmd_pool(h);
|
|
kfree(h->ioaccel1_blockFetchTable);
|
|
kfree(h->blockFetchTable);
|
|
hpsa_free_reply_queues(h);
|
|
if (h->vaddr)
|
|
iounmap(h->vaddr);
|
|
if (h->transtable)
|
|
iounmap(h->transtable);
|
|
if (h->cfgtable)
|
|
iounmap(h->cfgtable);
|
|
pci_disable_device(h->pdev);
|
|
pci_release_regions(h->pdev);
|
|
kfree(h);
|
|
}
|
|
|
|
/* Called when controller lockup detected. */
|
|
static void fail_all_cmds_on_list(struct ctlr_info *h, struct list_head *list)
|
|
{
|
|
struct CommandList *c = NULL;
|
|
|
|
assert_spin_locked(&h->lock);
|
|
/* Mark all outstanding commands as failed and complete them. */
|
|
while (!list_empty(list)) {
|
|
c = list_entry(list->next, struct CommandList, list);
|
|
c->err_info->CommandStatus = CMD_HARDWARE_ERR;
|
|
finish_cmd(c);
|
|
}
|
|
}
|
|
|
|
static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value)
|
|
{
|
|
int i, cpu;
|
|
|
|
cpu = cpumask_first(cpu_online_mask);
|
|
for (i = 0; i < num_online_cpus(); i++) {
|
|
u32 *lockup_detected;
|
|
lockup_detected = per_cpu_ptr(h->lockup_detected, cpu);
|
|
*lockup_detected = value;
|
|
cpu = cpumask_next(cpu, cpu_online_mask);
|
|
}
|
|
wmb(); /* be sure the per-cpu variables are out to memory */
|
|
}
|
|
|
|
static void controller_lockup_detected(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
u32 lockup_detected;
|
|
|
|
h->access.set_intr_mask(h, HPSA_INTR_OFF);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
|
|
if (!lockup_detected) {
|
|
/* no heartbeat, but controller gave us a zero. */
|
|
dev_warn(&h->pdev->dev,
|
|
"lockup detected but scratchpad register is zero\n");
|
|
lockup_detected = 0xffffffff;
|
|
}
|
|
set_lockup_detected_for_all_cpus(h, lockup_detected);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x\n",
|
|
lockup_detected);
|
|
pci_disable_device(h->pdev);
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
fail_all_cmds_on_list(h, &h->cmpQ);
|
|
fail_all_cmds_on_list(h, &h->reqQ);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
}
|
|
|
|
static void detect_controller_lockup(struct ctlr_info *h)
|
|
{
|
|
u64 now;
|
|
u32 heartbeat;
|
|
unsigned long flags;
|
|
|
|
now = get_jiffies_64();
|
|
/* If we've received an interrupt recently, we're ok. */
|
|
if (time_after64(h->last_intr_timestamp +
|
|
(h->heartbeat_sample_interval), now))
|
|
return;
|
|
|
|
/*
|
|
* If we've already checked the heartbeat recently, we're ok.
|
|
* This could happen if someone sends us a signal. We
|
|
* otherwise don't care about signals in this thread.
|
|
*/
|
|
if (time_after64(h->last_heartbeat_timestamp +
|
|
(h->heartbeat_sample_interval), now))
|
|
return;
|
|
|
|
/* If heartbeat has not changed since we last looked, we're not ok. */
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
heartbeat = readl(&h->cfgtable->HeartBeat);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (h->last_heartbeat == heartbeat) {
|
|
controller_lockup_detected(h);
|
|
return;
|
|
}
|
|
|
|
/* We're ok. */
|
|
h->last_heartbeat = heartbeat;
|
|
h->last_heartbeat_timestamp = now;
|
|
}
|
|
|
|
static void hpsa_ack_ctlr_events(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
char *event_type;
|
|
|
|
/* Clear the driver-requested rescan flag */
|
|
h->drv_req_rescan = 0;
|
|
|
|
/* Ask the controller to clear the events we're handling. */
|
|
if ((h->transMethod & (CFGTBL_Trans_io_accel1
|
|
| CFGTBL_Trans_io_accel2)) &&
|
|
(h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE ||
|
|
h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE)) {
|
|
|
|
if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE)
|
|
event_type = "state change";
|
|
if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE)
|
|
event_type = "configuration change";
|
|
/* Stop sending new RAID offload reqs via the IO accelerator */
|
|
scsi_block_requests(h->scsi_host);
|
|
for (i = 0; i < h->ndevices; i++)
|
|
h->dev[i]->offload_enabled = 0;
|
|
hpsa_drain_accel_commands(h);
|
|
/* Set 'accelerator path config change' bit */
|
|
dev_warn(&h->pdev->dev,
|
|
"Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n",
|
|
h->events, event_type);
|
|
writel(h->events, &(h->cfgtable->clear_event_notify));
|
|
/* Set the "clear event notify field update" bit 6 */
|
|
writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL);
|
|
/* Wait until ctlr clears 'clear event notify field', bit 6 */
|
|
hpsa_wait_for_clear_event_notify_ack(h);
|
|
scsi_unblock_requests(h->scsi_host);
|
|
} else {
|
|
/* Acknowledge controller notification events. */
|
|
writel(h->events, &(h->cfgtable->clear_event_notify));
|
|
writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL);
|
|
hpsa_wait_for_clear_event_notify_ack(h);
|
|
#if 0
|
|
writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
|
|
hpsa_wait_for_mode_change_ack(h);
|
|
#endif
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Check a register on the controller to see if there are configuration
|
|
* changes (added/changed/removed logical drives, etc.) which mean that
|
|
* we should rescan the controller for devices.
|
|
* Also check flag for driver-initiated rescan.
|
|
*/
|
|
static int hpsa_ctlr_needs_rescan(struct ctlr_info *h)
|
|
{
|
|
if (h->drv_req_rescan)
|
|
return 1;
|
|
|
|
if (!(h->fw_support & MISC_FW_EVENT_NOTIFY))
|
|
return 0;
|
|
|
|
h->events = readl(&(h->cfgtable->event_notify));
|
|
return h->events & RESCAN_REQUIRED_EVENT_BITS;
|
|
}
|
|
|
|
/*
|
|
* Check if any of the offline devices have become ready
|
|
*/
|
|
static int hpsa_offline_devices_ready(struct ctlr_info *h)
|
|
{
|
|
unsigned long flags;
|
|
struct offline_device_entry *d;
|
|
struct list_head *this, *tmp;
|
|
|
|
spin_lock_irqsave(&h->offline_device_lock, flags);
|
|
list_for_each_safe(this, tmp, &h->offline_device_list) {
|
|
d = list_entry(this, struct offline_device_entry,
|
|
offline_list);
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
if (!hpsa_volume_offline(h, d->scsi3addr)) {
|
|
spin_lock_irqsave(&h->offline_device_lock, flags);
|
|
list_del(&d->offline_list);
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
return 1;
|
|
}
|
|
spin_lock_irqsave(&h->offline_device_lock, flags);
|
|
}
|
|
spin_unlock_irqrestore(&h->offline_device_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void hpsa_monitor_ctlr_worker(struct work_struct *work)
|
|
{
|
|
unsigned long flags;
|
|
struct ctlr_info *h = container_of(to_delayed_work(work),
|
|
struct ctlr_info, monitor_ctlr_work);
|
|
detect_controller_lockup(h);
|
|
if (lockup_detected(h))
|
|
return;
|
|
|
|
if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) {
|
|
scsi_host_get(h->scsi_host);
|
|
h->drv_req_rescan = 0;
|
|
hpsa_ack_ctlr_events(h);
|
|
hpsa_scan_start(h->scsi_host);
|
|
scsi_host_put(h->scsi_host);
|
|
}
|
|
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
if (h->remove_in_progress) {
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
return;
|
|
}
|
|
schedule_delayed_work(&h->monitor_ctlr_work,
|
|
h->heartbeat_sample_interval);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
}
|
|
|
|
static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
int dac, rc;
|
|
struct ctlr_info *h;
|
|
int try_soft_reset = 0;
|
|
unsigned long flags;
|
|
|
|
if (number_of_controllers == 0)
|
|
printk(KERN_INFO DRIVER_NAME "\n");
|
|
|
|
rc = hpsa_init_reset_devices(pdev);
|
|
if (rc) {
|
|
if (rc != -ENOTSUPP)
|
|
return rc;
|
|
/* If the reset fails in a particular way (it has no way to do
|
|
* a proper hard reset, so returns -ENOTSUPP) we can try to do
|
|
* a soft reset once we get the controller configured up to the
|
|
* point that it can accept a command.
|
|
*/
|
|
try_soft_reset = 1;
|
|
rc = 0;
|
|
}
|
|
|
|
reinit_after_soft_reset:
|
|
|
|
/* Command structures must be aligned on a 32-byte boundary because
|
|
* the 5 lower bits of the address are used by the hardware. and by
|
|
* the driver. See comments in hpsa.h for more info.
|
|
*/
|
|
BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT);
|
|
h = kzalloc(sizeof(*h), GFP_KERNEL);
|
|
if (!h)
|
|
return -ENOMEM;
|
|
|
|
h->pdev = pdev;
|
|
h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;
|
|
INIT_LIST_HEAD(&h->cmpQ);
|
|
INIT_LIST_HEAD(&h->reqQ);
|
|
INIT_LIST_HEAD(&h->offline_device_list);
|
|
spin_lock_init(&h->lock);
|
|
spin_lock_init(&h->offline_device_lock);
|
|
spin_lock_init(&h->scan_lock);
|
|
spin_lock_init(&h->passthru_count_lock);
|
|
|
|
/* Allocate and clear per-cpu variable lockup_detected */
|
|
h->lockup_detected = alloc_percpu(u32);
|
|
if (!h->lockup_detected) {
|
|
rc = -ENOMEM;
|
|
goto clean1;
|
|
}
|
|
set_lockup_detected_for_all_cpus(h, 0);
|
|
|
|
rc = hpsa_pci_init(h);
|
|
if (rc != 0)
|
|
goto clean1;
|
|
|
|
sprintf(h->devname, HPSA "%d", number_of_controllers);
|
|
h->ctlr = number_of_controllers;
|
|
number_of_controllers++;
|
|
|
|
/* configure PCI DMA stuff */
|
|
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (rc == 0) {
|
|
dac = 1;
|
|
} else {
|
|
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (rc == 0) {
|
|
dac = 0;
|
|
} else {
|
|
dev_err(&pdev->dev, "no suitable DMA available\n");
|
|
goto clean1;
|
|
}
|
|
}
|
|
|
|
/* make sure the board interrupts are off */
|
|
h->access.set_intr_mask(h, HPSA_INTR_OFF);
|
|
|
|
if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
|
|
goto clean2;
|
|
dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
|
|
h->devname, pdev->device,
|
|
h->intr[h->intr_mode], dac ? "" : " not");
|
|
if (hpsa_allocate_cmd_pool(h))
|
|
goto clean4;
|
|
if (hpsa_allocate_sg_chain_blocks(h))
|
|
goto clean4;
|
|
init_waitqueue_head(&h->scan_wait_queue);
|
|
h->scan_finished = 1; /* no scan currently in progress */
|
|
|
|
pci_set_drvdata(pdev, h);
|
|
h->ndevices = 0;
|
|
h->hba_mode_enabled = 0;
|
|
h->scsi_host = NULL;
|
|
spin_lock_init(&h->devlock);
|
|
hpsa_put_ctlr_into_performant_mode(h);
|
|
|
|
/* At this point, the controller is ready to take commands.
|
|
* Now, if reset_devices and the hard reset didn't work, try
|
|
* the soft reset and see if that works.
|
|
*/
|
|
if (try_soft_reset) {
|
|
|
|
/* This is kind of gross. We may or may not get a completion
|
|
* from the soft reset command, and if we do, then the value
|
|
* from the fifo may or may not be valid. So, we wait 10 secs
|
|
* after the reset throwing away any completions we get during
|
|
* that time. Unregister the interrupt handler and register
|
|
* fake ones to scoop up any residual completions.
|
|
*/
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
h->access.set_intr_mask(h, HPSA_INTR_OFF);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
free_irqs(h);
|
|
rc = hpsa_request_irq(h, hpsa_msix_discard_completions,
|
|
hpsa_intx_discard_completions);
|
|
if (rc) {
|
|
dev_warn(&h->pdev->dev, "Failed to request_irq after "
|
|
"soft reset.\n");
|
|
goto clean4;
|
|
}
|
|
|
|
rc = hpsa_kdump_soft_reset(h);
|
|
if (rc)
|
|
/* Neither hard nor soft reset worked, we're hosed. */
|
|
goto clean4;
|
|
|
|
dev_info(&h->pdev->dev, "Board READY.\n");
|
|
dev_info(&h->pdev->dev,
|
|
"Waiting for stale completions to drain.\n");
|
|
h->access.set_intr_mask(h, HPSA_INTR_ON);
|
|
msleep(10000);
|
|
h->access.set_intr_mask(h, HPSA_INTR_OFF);
|
|
|
|
rc = controller_reset_failed(h->cfgtable);
|
|
if (rc)
|
|
dev_info(&h->pdev->dev,
|
|
"Soft reset appears to have failed.\n");
|
|
|
|
/* since the controller's reset, we have to go back and re-init
|
|
* everything. Easiest to just forget what we've done and do it
|
|
* all over again.
|
|
*/
|
|
hpsa_undo_allocations_after_kdump_soft_reset(h);
|
|
try_soft_reset = 0;
|
|
if (rc)
|
|
/* don't go to clean4, we already unallocated */
|
|
return -ENODEV;
|
|
|
|
goto reinit_after_soft_reset;
|
|
}
|
|
|
|
/* Enable Accelerated IO path at driver layer */
|
|
h->acciopath_status = 1;
|
|
|
|
h->drv_req_rescan = 0;
|
|
|
|
/* Turn the interrupts on so we can service requests */
|
|
h->access.set_intr_mask(h, HPSA_INTR_ON);
|
|
|
|
hpsa_hba_inquiry(h);
|
|
hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
|
|
|
|
/* Monitor the controller for firmware lockups */
|
|
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
|
|
INIT_DELAYED_WORK(&h->monitor_ctlr_work, hpsa_monitor_ctlr_worker);
|
|
schedule_delayed_work(&h->monitor_ctlr_work,
|
|
h->heartbeat_sample_interval);
|
|
return 0;
|
|
|
|
clean4:
|
|
hpsa_free_sg_chain_blocks(h);
|
|
hpsa_free_cmd_pool(h);
|
|
free_irqs(h);
|
|
clean2:
|
|
clean1:
|
|
if (h->lockup_detected)
|
|
free_percpu(h->lockup_detected);
|
|
kfree(h);
|
|
return rc;
|
|
}
|
|
|
|
static void hpsa_flush_cache(struct ctlr_info *h)
|
|
{
|
|
char *flush_buf;
|
|
struct CommandList *c;
|
|
|
|
/* Don't bother trying to flush the cache if locked up */
|
|
if (unlikely(lockup_detected(h)))
|
|
return;
|
|
flush_buf = kzalloc(4, GFP_KERNEL);
|
|
if (!flush_buf)
|
|
return;
|
|
|
|
c = cmd_special_alloc(h);
|
|
if (!c) {
|
|
dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
|
|
goto out_of_memory;
|
|
}
|
|
if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0,
|
|
RAID_CTLR_LUNID, TYPE_CMD)) {
|
|
goto out;
|
|
}
|
|
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_TODEVICE);
|
|
if (c->err_info->CommandStatus != 0)
|
|
out:
|
|
dev_warn(&h->pdev->dev,
|
|
"error flushing cache on controller\n");
|
|
cmd_special_free(h, c);
|
|
out_of_memory:
|
|
kfree(flush_buf);
|
|
}
|
|
|
|
static void hpsa_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct ctlr_info *h;
|
|
|
|
h = pci_get_drvdata(pdev);
|
|
/* Turn board interrupts off and send the flush cache command
|
|
* sendcmd will turn off interrupt, and send the flush...
|
|
* To write all data in the battery backed cache to disks
|
|
*/
|
|
hpsa_flush_cache(h);
|
|
h->access.set_intr_mask(h, HPSA_INTR_OFF);
|
|
hpsa_free_irqs_and_disable_msix(h);
|
|
}
|
|
|
|
static void hpsa_free_device_info(struct ctlr_info *h)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < h->ndevices; i++)
|
|
kfree(h->dev[i]);
|
|
}
|
|
|
|
static void hpsa_remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct ctlr_info *h;
|
|
unsigned long flags;
|
|
|
|
if (pci_get_drvdata(pdev) == NULL) {
|
|
dev_err(&pdev->dev, "unable to remove device\n");
|
|
return;
|
|
}
|
|
h = pci_get_drvdata(pdev);
|
|
|
|
/* Get rid of any controller monitoring work items */
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
h->remove_in_progress = 1;
|
|
cancel_delayed_work(&h->monitor_ctlr_work);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
|
|
hpsa_unregister_scsi(h); /* unhook from SCSI subsystem */
|
|
hpsa_shutdown(pdev);
|
|
iounmap(h->vaddr);
|
|
iounmap(h->transtable);
|
|
iounmap(h->cfgtable);
|
|
hpsa_free_device_info(h);
|
|
hpsa_free_sg_chain_blocks(h);
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(struct CommandList),
|
|
h->cmd_pool, h->cmd_pool_dhandle);
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(struct ErrorInfo),
|
|
h->errinfo_pool, h->errinfo_pool_dhandle);
|
|
hpsa_free_reply_queues(h);
|
|
kfree(h->cmd_pool_bits);
|
|
kfree(h->blockFetchTable);
|
|
kfree(h->ioaccel1_blockFetchTable);
|
|
kfree(h->ioaccel2_blockFetchTable);
|
|
kfree(h->hba_inquiry_data);
|
|
pci_disable_device(pdev);
|
|
pci_release_regions(pdev);
|
|
free_percpu(h->lockup_detected);
|
|
kfree(h);
|
|
}
|
|
|
|
static int hpsa_suspend(__attribute__((unused)) struct pci_dev *pdev,
|
|
__attribute__((unused)) pm_message_t state)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static int hpsa_resume(__attribute__((unused)) struct pci_dev *pdev)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static struct pci_driver hpsa_pci_driver = {
|
|
.name = HPSA,
|
|
.probe = hpsa_init_one,
|
|
.remove = hpsa_remove_one,
|
|
.id_table = hpsa_pci_device_id, /* id_table */
|
|
.shutdown = hpsa_shutdown,
|
|
.suspend = hpsa_suspend,
|
|
.resume = hpsa_resume,
|
|
};
|
|
|
|
/* Fill in bucket_map[], given nsgs (the max number of
|
|
* scatter gather elements supported) and bucket[],
|
|
* which is an array of 8 integers. The bucket[] array
|
|
* contains 8 different DMA transfer sizes (in 16
|
|
* byte increments) which the controller uses to fetch
|
|
* commands. This function fills in bucket_map[], which
|
|
* maps a given number of scatter gather elements to one of
|
|
* the 8 DMA transfer sizes. The point of it is to allow the
|
|
* controller to only do as much DMA as needed to fetch the
|
|
* command, with the DMA transfer size encoded in the lower
|
|
* bits of the command address.
|
|
*/
|
|
static void calc_bucket_map(int bucket[], int num_buckets,
|
|
int nsgs, int min_blocks, int *bucket_map)
|
|
{
|
|
int i, j, b, size;
|
|
|
|
/* Note, bucket_map must have nsgs+1 entries. */
|
|
for (i = 0; i <= nsgs; i++) {
|
|
/* Compute size of a command with i SG entries */
|
|
size = i + min_blocks;
|
|
b = num_buckets; /* Assume the biggest bucket */
|
|
/* Find the bucket that is just big enough */
|
|
for (j = 0; j < num_buckets; j++) {
|
|
if (bucket[j] >= size) {
|
|
b = j;
|
|
break;
|
|
}
|
|
}
|
|
/* for a command with i SG entries, use bucket b. */
|
|
bucket_map[i] = b;
|
|
}
|
|
}
|
|
|
|
static void hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
|
|
{
|
|
int i;
|
|
unsigned long register_value;
|
|
unsigned long transMethod = CFGTBL_Trans_Performant |
|
|
(trans_support & CFGTBL_Trans_use_short_tags) |
|
|
CFGTBL_Trans_enable_directed_msix |
|
|
(trans_support & (CFGTBL_Trans_io_accel1 |
|
|
CFGTBL_Trans_io_accel2));
|
|
struct access_method access = SA5_performant_access;
|
|
|
|
/* This is a bit complicated. There are 8 registers on
|
|
* the controller which we write to to tell it 8 different
|
|
* sizes of commands which there may be. It's a way of
|
|
* reducing the DMA done to fetch each command. Encoded into
|
|
* each command's tag are 3 bits which communicate to the controller
|
|
* which of the eight sizes that command fits within. The size of
|
|
* each command depends on how many scatter gather entries there are.
|
|
* Each SG entry requires 16 bytes. The eight registers are programmed
|
|
* with the number of 16-byte blocks a command of that size requires.
|
|
* The smallest command possible requires 5 such 16 byte blocks.
|
|
* the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte
|
|
* blocks. Note, this only extends to the SG entries contained
|
|
* within the command block, and does not extend to chained blocks
|
|
* of SG elements. bft[] contains the eight values we write to
|
|
* the registers. They are not evenly distributed, but have more
|
|
* sizes for small commands, and fewer sizes for larger commands.
|
|
*/
|
|
int bft[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD + 4};
|
|
#define MIN_IOACCEL2_BFT_ENTRY 5
|
|
#define HPSA_IOACCEL2_HEADER_SZ 4
|
|
int bft2[16] = {MIN_IOACCEL2_BFT_ENTRY, 6, 7, 8, 9, 10, 11, 12,
|
|
13, 14, 15, 16, 17, 18, 19,
|
|
HPSA_IOACCEL2_HEADER_SZ + IOACCEL2_MAXSGENTRIES};
|
|
BUILD_BUG_ON(ARRAY_SIZE(bft2) != 16);
|
|
BUILD_BUG_ON(ARRAY_SIZE(bft) != 8);
|
|
BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) >
|
|
16 * MIN_IOACCEL2_BFT_ENTRY);
|
|
BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element) != 16);
|
|
BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD + 4);
|
|
/* 5 = 1 s/g entry or 4k
|
|
* 6 = 2 s/g entry or 8k
|
|
* 8 = 4 s/g entry or 16k
|
|
* 10 = 6 s/g entry or 24k
|
|
*/
|
|
|
|
/* If the controller supports either ioaccel method then
|
|
* we can also use the RAID stack submit path that does not
|
|
* perform the superfluous readl() after each command submission.
|
|
*/
|
|
if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2))
|
|
access = SA5_performant_access_no_read;
|
|
|
|
/* Controller spec: zero out this buffer. */
|
|
for (i = 0; i < h->nreply_queues; i++)
|
|
memset(h->reply_queue[i].head, 0, h->reply_queue_size);
|
|
|
|
bft[7] = SG_ENTRIES_IN_CMD + 4;
|
|
calc_bucket_map(bft, ARRAY_SIZE(bft),
|
|
SG_ENTRIES_IN_CMD, 4, h->blockFetchTable);
|
|
for (i = 0; i < 8; i++)
|
|
writel(bft[i], &h->transtable->BlockFetch[i]);
|
|
|
|
/* size of controller ring buffer */
|
|
writel(h->max_commands, &h->transtable->RepQSize);
|
|
writel(h->nreply_queues, &h->transtable->RepQCount);
|
|
writel(0, &h->transtable->RepQCtrAddrLow32);
|
|
writel(0, &h->transtable->RepQCtrAddrHigh32);
|
|
|
|
for (i = 0; i < h->nreply_queues; i++) {
|
|
writel(0, &h->transtable->RepQAddr[i].upper);
|
|
writel(h->reply_queue[i].busaddr,
|
|
&h->transtable->RepQAddr[i].lower);
|
|
}
|
|
|
|
writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi);
|
|
writel(transMethod, &(h->cfgtable->HostWrite.TransportRequest));
|
|
/*
|
|
* enable outbound interrupt coalescing in accelerator mode;
|
|
*/
|
|
if (trans_support & CFGTBL_Trans_io_accel1) {
|
|
access = SA5_ioaccel_mode1_access;
|
|
writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
|
|
writel(4, &h->cfgtable->HostWrite.CoalIntCount);
|
|
} else {
|
|
if (trans_support & CFGTBL_Trans_io_accel2) {
|
|
access = SA5_ioaccel_mode2_access;
|
|
writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
|
|
writel(4, &h->cfgtable->HostWrite.CoalIntCount);
|
|
}
|
|
}
|
|
writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
|
|
hpsa_wait_for_mode_change_ack(h);
|
|
register_value = readl(&(h->cfgtable->TransportActive));
|
|
if (!(register_value & CFGTBL_Trans_Performant)) {
|
|
dev_warn(&h->pdev->dev, "unable to get board into"
|
|
" performant mode\n");
|
|
return;
|
|
}
|
|
/* Change the access methods to the performant access methods */
|
|
h->access = access;
|
|
h->transMethod = transMethod;
|
|
|
|
if (!((trans_support & CFGTBL_Trans_io_accel1) ||
|
|
(trans_support & CFGTBL_Trans_io_accel2)))
|
|
return;
|
|
|
|
if (trans_support & CFGTBL_Trans_io_accel1) {
|
|
/* Set up I/O accelerator mode */
|
|
for (i = 0; i < h->nreply_queues; i++) {
|
|
writel(i, h->vaddr + IOACCEL_MODE1_REPLY_QUEUE_INDEX);
|
|
h->reply_queue[i].current_entry =
|
|
readl(h->vaddr + IOACCEL_MODE1_PRODUCER_INDEX);
|
|
}
|
|
bft[7] = h->ioaccel_maxsg + 8;
|
|
calc_bucket_map(bft, ARRAY_SIZE(bft), h->ioaccel_maxsg, 8,
|
|
h->ioaccel1_blockFetchTable);
|
|
|
|
/* initialize all reply queue entries to unused */
|
|
for (i = 0; i < h->nreply_queues; i++)
|
|
memset(h->reply_queue[i].head,
|
|
(u8) IOACCEL_MODE1_REPLY_UNUSED,
|
|
h->reply_queue_size);
|
|
|
|
/* set all the constant fields in the accelerator command
|
|
* frames once at init time to save CPU cycles later.
|
|
*/
|
|
for (i = 0; i < h->nr_cmds; i++) {
|
|
struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[i];
|
|
|
|
cp->function = IOACCEL1_FUNCTION_SCSIIO;
|
|
cp->err_info = (u32) (h->errinfo_pool_dhandle +
|
|
(i * sizeof(struct ErrorInfo)));
|
|
cp->err_info_len = sizeof(struct ErrorInfo);
|
|
cp->sgl_offset = IOACCEL1_SGLOFFSET;
|
|
cp->host_context_flags = IOACCEL1_HCFLAGS_CISS_FORMAT;
|
|
cp->timeout_sec = 0;
|
|
cp->ReplyQueue = 0;
|
|
cp->tag =
|
|
cpu_to_le64((i << DIRECT_LOOKUP_SHIFT) |
|
|
DIRECT_LOOKUP_BIT);
|
|
cp->host_addr =
|
|
cpu_to_le64(h->ioaccel_cmd_pool_dhandle +
|
|
(i * sizeof(struct io_accel1_cmd)));
|
|
}
|
|
} else if (trans_support & CFGTBL_Trans_io_accel2) {
|
|
u64 cfg_offset, cfg_base_addr_index;
|
|
u32 bft2_offset, cfg_base_addr;
|
|
int rc;
|
|
|
|
rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr,
|
|
&cfg_base_addr_index, &cfg_offset);
|
|
BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) != 64);
|
|
bft2[15] = h->ioaccel_maxsg + HPSA_IOACCEL2_HEADER_SZ;
|
|
calc_bucket_map(bft2, ARRAY_SIZE(bft2), h->ioaccel_maxsg,
|
|
4, h->ioaccel2_blockFetchTable);
|
|
bft2_offset = readl(&h->cfgtable->io_accel_request_size_offset);
|
|
BUILD_BUG_ON(offsetof(struct CfgTable,
|
|
io_accel_request_size_offset) != 0xb8);
|
|
h->ioaccel2_bft2_regs =
|
|
remap_pci_mem(pci_resource_start(h->pdev,
|
|
cfg_base_addr_index) +
|
|
cfg_offset + bft2_offset,
|
|
ARRAY_SIZE(bft2) *
|
|
sizeof(*h->ioaccel2_bft2_regs));
|
|
for (i = 0; i < ARRAY_SIZE(bft2); i++)
|
|
writel(bft2[i], &h->ioaccel2_bft2_regs[i]);
|
|
}
|
|
writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
|
|
hpsa_wait_for_mode_change_ack(h);
|
|
}
|
|
|
|
static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info *h)
|
|
{
|
|
h->ioaccel_maxsg =
|
|
readl(&(h->cfgtable->io_accel_max_embedded_sg_count));
|
|
if (h->ioaccel_maxsg > IOACCEL1_MAXSGENTRIES)
|
|
h->ioaccel_maxsg = IOACCEL1_MAXSGENTRIES;
|
|
|
|
/* Command structures must be aligned on a 128-byte boundary
|
|
* because the 7 lower bits of the address are used by the
|
|
* hardware.
|
|
*/
|
|
BUILD_BUG_ON(sizeof(struct io_accel1_cmd) %
|
|
IOACCEL1_COMMANDLIST_ALIGNMENT);
|
|
h->ioaccel_cmd_pool =
|
|
pci_alloc_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
|
|
&(h->ioaccel_cmd_pool_dhandle));
|
|
|
|
h->ioaccel1_blockFetchTable =
|
|
kmalloc(((h->ioaccel_maxsg + 1) *
|
|
sizeof(u32)), GFP_KERNEL);
|
|
|
|
if ((h->ioaccel_cmd_pool == NULL) ||
|
|
(h->ioaccel1_blockFetchTable == NULL))
|
|
goto clean_up;
|
|
|
|
memset(h->ioaccel_cmd_pool, 0,
|
|
h->nr_cmds * sizeof(*h->ioaccel_cmd_pool));
|
|
return 0;
|
|
|
|
clean_up:
|
|
if (h->ioaccel_cmd_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
|
|
h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
|
|
kfree(h->ioaccel1_blockFetchTable);
|
|
return 1;
|
|
}
|
|
|
|
static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info *h)
|
|
{
|
|
/* Allocate ioaccel2 mode command blocks and block fetch table */
|
|
|
|
h->ioaccel_maxsg =
|
|
readl(&(h->cfgtable->io_accel_max_embedded_sg_count));
|
|
if (h->ioaccel_maxsg > IOACCEL2_MAXSGENTRIES)
|
|
h->ioaccel_maxsg = IOACCEL2_MAXSGENTRIES;
|
|
|
|
BUILD_BUG_ON(sizeof(struct io_accel2_cmd) %
|
|
IOACCEL2_COMMANDLIST_ALIGNMENT);
|
|
h->ioaccel2_cmd_pool =
|
|
pci_alloc_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
|
|
&(h->ioaccel2_cmd_pool_dhandle));
|
|
|
|
h->ioaccel2_blockFetchTable =
|
|
kmalloc(((h->ioaccel_maxsg + 1) *
|
|
sizeof(u32)), GFP_KERNEL);
|
|
|
|
if ((h->ioaccel2_cmd_pool == NULL) ||
|
|
(h->ioaccel2_blockFetchTable == NULL))
|
|
goto clean_up;
|
|
|
|
memset(h->ioaccel2_cmd_pool, 0,
|
|
h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool));
|
|
return 0;
|
|
|
|
clean_up:
|
|
if (h->ioaccel2_cmd_pool)
|
|
pci_free_consistent(h->pdev,
|
|
h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
|
|
h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
|
|
kfree(h->ioaccel2_blockFetchTable);
|
|
return 1;
|
|
}
|
|
|
|
static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
|
|
{
|
|
u32 trans_support;
|
|
unsigned long transMethod = CFGTBL_Trans_Performant |
|
|
CFGTBL_Trans_use_short_tags;
|
|
int i;
|
|
|
|
if (hpsa_simple_mode)
|
|
return;
|
|
|
|
trans_support = readl(&(h->cfgtable->TransportSupport));
|
|
if (!(trans_support & PERFORMANT_MODE))
|
|
return;
|
|
|
|
/* Check for I/O accelerator mode support */
|
|
if (trans_support & CFGTBL_Trans_io_accel1) {
|
|
transMethod |= CFGTBL_Trans_io_accel1 |
|
|
CFGTBL_Trans_enable_directed_msix;
|
|
if (hpsa_alloc_ioaccel_cmd_and_bft(h))
|
|
goto clean_up;
|
|
} else {
|
|
if (trans_support & CFGTBL_Trans_io_accel2) {
|
|
transMethod |= CFGTBL_Trans_io_accel2 |
|
|
CFGTBL_Trans_enable_directed_msix;
|
|
if (ioaccel2_alloc_cmds_and_bft(h))
|
|
goto clean_up;
|
|
}
|
|
}
|
|
|
|
h->nreply_queues = h->msix_vector > 0 ? h->msix_vector : 1;
|
|
hpsa_get_max_perf_mode_cmds(h);
|
|
/* Performant mode ring buffer and supporting data structures */
|
|
h->reply_queue_size = h->max_commands * sizeof(u64);
|
|
|
|
for (i = 0; i < h->nreply_queues; i++) {
|
|
h->reply_queue[i].head = pci_alloc_consistent(h->pdev,
|
|
h->reply_queue_size,
|
|
&(h->reply_queue[i].busaddr));
|
|
if (!h->reply_queue[i].head)
|
|
goto clean_up;
|
|
h->reply_queue[i].size = h->max_commands;
|
|
h->reply_queue[i].wraparound = 1; /* spec: init to 1 */
|
|
h->reply_queue[i].current_entry = 0;
|
|
}
|
|
|
|
/* Need a block fetch table for performant mode */
|
|
h->blockFetchTable = kmalloc(((SG_ENTRIES_IN_CMD + 1) *
|
|
sizeof(u32)), GFP_KERNEL);
|
|
if (!h->blockFetchTable)
|
|
goto clean_up;
|
|
|
|
hpsa_enter_performant_mode(h, trans_support);
|
|
return;
|
|
|
|
clean_up:
|
|
hpsa_free_reply_queues(h);
|
|
kfree(h->blockFetchTable);
|
|
}
|
|
|
|
static int is_accelerated_cmd(struct CommandList *c)
|
|
{
|
|
return c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_IOACCEL2;
|
|
}
|
|
|
|
static void hpsa_drain_accel_commands(struct ctlr_info *h)
|
|
{
|
|
struct CommandList *c = NULL;
|
|
unsigned long flags;
|
|
int accel_cmds_out;
|
|
|
|
do { /* wait for all outstanding commands to drain out */
|
|
accel_cmds_out = 0;
|
|
spin_lock_irqsave(&h->lock, flags);
|
|
list_for_each_entry(c, &h->cmpQ, list)
|
|
accel_cmds_out += is_accelerated_cmd(c);
|
|
list_for_each_entry(c, &h->reqQ, list)
|
|
accel_cmds_out += is_accelerated_cmd(c);
|
|
spin_unlock_irqrestore(&h->lock, flags);
|
|
if (accel_cmds_out <= 0)
|
|
break;
|
|
msleep(100);
|
|
} while (1);
|
|
}
|
|
|
|
/*
|
|
* This is it. Register the PCI driver information for the cards we control
|
|
* the OS will call our registered routines when it finds one of our cards.
|
|
*/
|
|
static int __init hpsa_init(void)
|
|
{
|
|
return pci_register_driver(&hpsa_pci_driver);
|
|
}
|
|
|
|
static void __exit hpsa_cleanup(void)
|
|
{
|
|
pci_unregister_driver(&hpsa_pci_driver);
|
|
}
|
|
|
|
static void __attribute__((unused)) verify_offsets(void)
|
|
{
|
|
#define VERIFY_OFFSET(member, offset) \
|
|
BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset)
|
|
|
|
VERIFY_OFFSET(structure_size, 0);
|
|
VERIFY_OFFSET(volume_blk_size, 4);
|
|
VERIFY_OFFSET(volume_blk_cnt, 8);
|
|
VERIFY_OFFSET(phys_blk_shift, 16);
|
|
VERIFY_OFFSET(parity_rotation_shift, 17);
|
|
VERIFY_OFFSET(strip_size, 18);
|
|
VERIFY_OFFSET(disk_starting_blk, 20);
|
|
VERIFY_OFFSET(disk_blk_cnt, 28);
|
|
VERIFY_OFFSET(data_disks_per_row, 36);
|
|
VERIFY_OFFSET(metadata_disks_per_row, 38);
|
|
VERIFY_OFFSET(row_cnt, 40);
|
|
VERIFY_OFFSET(layout_map_count, 42);
|
|
VERIFY_OFFSET(flags, 44);
|
|
VERIFY_OFFSET(dekindex, 46);
|
|
/* VERIFY_OFFSET(reserved, 48 */
|
|
VERIFY_OFFSET(data, 64);
|
|
|
|
#undef VERIFY_OFFSET
|
|
|
|
#define VERIFY_OFFSET(member, offset) \
|
|
BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
|
|
|
|
VERIFY_OFFSET(IU_type, 0);
|
|
VERIFY_OFFSET(direction, 1);
|
|
VERIFY_OFFSET(reply_queue, 2);
|
|
/* VERIFY_OFFSET(reserved1, 3); */
|
|
VERIFY_OFFSET(scsi_nexus, 4);
|
|
VERIFY_OFFSET(Tag, 8);
|
|
VERIFY_OFFSET(cdb, 16);
|
|
VERIFY_OFFSET(cciss_lun, 32);
|
|
VERIFY_OFFSET(data_len, 40);
|
|
VERIFY_OFFSET(cmd_priority_task_attr, 44);
|
|
VERIFY_OFFSET(sg_count, 45);
|
|
/* VERIFY_OFFSET(reserved3 */
|
|
VERIFY_OFFSET(err_ptr, 48);
|
|
VERIFY_OFFSET(err_len, 56);
|
|
/* VERIFY_OFFSET(reserved4 */
|
|
VERIFY_OFFSET(sg, 64);
|
|
|
|
#undef VERIFY_OFFSET
|
|
|
|
#define VERIFY_OFFSET(member, offset) \
|
|
BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)
|
|
|
|
VERIFY_OFFSET(dev_handle, 0x00);
|
|
VERIFY_OFFSET(reserved1, 0x02);
|
|
VERIFY_OFFSET(function, 0x03);
|
|
VERIFY_OFFSET(reserved2, 0x04);
|
|
VERIFY_OFFSET(err_info, 0x0C);
|
|
VERIFY_OFFSET(reserved3, 0x10);
|
|
VERIFY_OFFSET(err_info_len, 0x12);
|
|
VERIFY_OFFSET(reserved4, 0x13);
|
|
VERIFY_OFFSET(sgl_offset, 0x14);
|
|
VERIFY_OFFSET(reserved5, 0x15);
|
|
VERIFY_OFFSET(transfer_len, 0x1C);
|
|
VERIFY_OFFSET(reserved6, 0x20);
|
|
VERIFY_OFFSET(io_flags, 0x24);
|
|
VERIFY_OFFSET(reserved7, 0x26);
|
|
VERIFY_OFFSET(LUN, 0x34);
|
|
VERIFY_OFFSET(control, 0x3C);
|
|
VERIFY_OFFSET(CDB, 0x40);
|
|
VERIFY_OFFSET(reserved8, 0x50);
|
|
VERIFY_OFFSET(host_context_flags, 0x60);
|
|
VERIFY_OFFSET(timeout_sec, 0x62);
|
|
VERIFY_OFFSET(ReplyQueue, 0x64);
|
|
VERIFY_OFFSET(reserved9, 0x65);
|
|
VERIFY_OFFSET(tag, 0x68);
|
|
VERIFY_OFFSET(host_addr, 0x70);
|
|
VERIFY_OFFSET(CISS_LUN, 0x78);
|
|
VERIFY_OFFSET(SG, 0x78 + 8);
|
|
#undef VERIFY_OFFSET
|
|
}
|
|
|
|
module_init(hpsa_init);
|
|
module_exit(hpsa_cleanup);
|