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@@ -0,0 +1,3531 @@
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+/*
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+ * Disk Array driver for HP Smart Array SAS controllers
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+ * Copyright 2000, 2009 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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+
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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/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/seq_file.h>
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+#include <linux/init.h>
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+#include <linux/spinlock.h>
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+#include <linux/smp_lock.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 <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 <asm/atomic.h>
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+#include <linux/kthread.h>
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+#include "hpsa_cmd.h"
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+#include "hpsa.h"
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+
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+/* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
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+#define HPSA_DRIVER_VERSION "1.0.0"
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+#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
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+
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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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+
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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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+
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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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+
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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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+
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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_CISSC, 0x103C, 0x3223},
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+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3234},
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+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x323D},
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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_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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+
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+MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id);
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+
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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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+ {0x3223103C, "Smart Array P800", &SA5_access},
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+ {0x3234103C, "Smart Array P400", &SA5_access},
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+ {0x323d103c, "Smart Array P700M", &SA5_access},
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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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+ {0xFFFF103C, "Unknown Smart Array", &SA5_access},
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+};
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+
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+static int number_of_controllers;
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+
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+static irqreturn_t do_hpsa_intr(int irq, void *dev_id);
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+static int hpsa_ioctl(struct scsi_device *dev, int cmd, void *arg);
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+static void start_io(struct ctlr_info *h);
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+
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+#ifdef CONFIG_COMPAT
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+static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void *arg);
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+#endif
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+
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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 void fill_cmd(struct CommandList *c, __u8 cmd, struct ctlr_info *h,
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+ void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr,
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+ int cmd_type);
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+
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+static int hpsa_scsi_queue_command(struct scsi_cmnd *cmd,
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+ void (*done)(struct scsi_cmnd *));
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+
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+static int hpsa_eh_device_reset_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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+
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+static ssize_t raid_level_show(struct device *dev,
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+ struct device_attribute *attr, char *buf);
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+static ssize_t lunid_show(struct device *dev,
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+ struct device_attribute *attr, char *buf);
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+static ssize_t unique_id_show(struct device *dev,
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+ struct device_attribute *attr, char *buf);
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+static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
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+static ssize_t host_store_rescan(struct device *dev,
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+ struct device_attribute *attr, const char *buf, size_t count);
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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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+
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+static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
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+static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
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+static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
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+static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
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+
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+static struct device_attribute *hpsa_sdev_attrs[] = {
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+ &dev_attr_raid_level,
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+ &dev_attr_lunid,
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+ &dev_attr_unique_id,
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+ NULL,
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+};
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+
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+static struct device_attribute *hpsa_shost_attrs[] = {
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+ &dev_attr_rescan,
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+ NULL,
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+};
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+
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+static struct scsi_host_template hpsa_driver_template = {
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+ .module = THIS_MODULE,
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+ .name = "hpsa",
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+ .proc_name = "hpsa",
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+ .queuecommand = hpsa_scsi_queue_command,
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+ .can_queue = 512,
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+ .this_id = -1,
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+ .sg_tablesize = MAXSGENTRIES,
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+ .cmd_per_lun = 512,
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+ .use_clustering = ENABLE_CLUSTERING,
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+ .eh_device_reset_handler = hpsa_eh_device_reset_handler,
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+ .ioctl = hpsa_ioctl,
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+ .slave_alloc = hpsa_slave_alloc,
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+ .slave_destroy = hpsa_slave_destroy,
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+#ifdef CONFIG_COMPAT
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+ .compat_ioctl = hpsa_compat_ioctl,
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+#endif
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+ .sdev_attrs = hpsa_sdev_attrs,
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+ .shost_attrs = hpsa_shost_attrs,
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+};
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+
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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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+
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+static struct task_struct *hpsa_scan_thread;
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+static DEFINE_MUTEX(hpsa_scan_mutex);
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+static LIST_HEAD(hpsa_scan_q);
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+static int hpsa_scan_func(void *data);
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+
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+/**
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+ * add_to_scan_list() - add controller to rescan queue
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+ * @h: Pointer to the controller.
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+ *
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+ * Adds the controller to the rescan queue if not already on the queue.
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+ *
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+ * returns 1 if added to the queue, 0 if skipped (could be on the
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+ * queue already, or the controller could be initializing or shutting
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+ * down).
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+ **/
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+static int add_to_scan_list(struct ctlr_info *h)
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+{
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+ struct ctlr_info *test_h;
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+ int found = 0;
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+ int ret = 0;
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+
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+ if (h->busy_initializing)
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+ return 0;
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+
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+ /*
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+ * If we don't get the lock, it means the driver is unloading
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+ * and there's no point in scheduling a new scan.
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+ */
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+ if (!mutex_trylock(&h->busy_shutting_down))
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+ return 0;
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+
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+ mutex_lock(&hpsa_scan_mutex);
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+ list_for_each_entry(test_h, &hpsa_scan_q, scan_list) {
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+ if (test_h == h) {
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+ found = 1;
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+ break;
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+ }
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+ }
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+ if (!found && !h->busy_scanning) {
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+ INIT_COMPLETION(h->scan_wait);
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+ list_add_tail(&h->scan_list, &hpsa_scan_q);
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+ ret = 1;
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+ }
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+ mutex_unlock(&hpsa_scan_mutex);
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+ mutex_unlock(&h->busy_shutting_down);
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+
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+ return ret;
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+}
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+
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+/**
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+ * remove_from_scan_list() - remove controller from rescan queue
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+ * @h: Pointer to the controller.
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+ *
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+ * Removes the controller from the rescan queue if present. Blocks if
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+ * the controller is currently conducting a rescan. The controller
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+ * can be in one of three states:
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+ * 1. Doesn't need a scan
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+ * 2. On the scan list, but not scanning yet (we remove it)
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+ * 3. Busy scanning (and not on the list). In this case we want to wait for
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+ * the scan to complete to make sure the scanning thread for this
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+ * controller is completely idle.
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+ **/
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+static void remove_from_scan_list(struct ctlr_info *h)
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+{
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+ struct ctlr_info *test_h, *tmp_h;
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+
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+ mutex_lock(&hpsa_scan_mutex);
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+ list_for_each_entry_safe(test_h, tmp_h, &hpsa_scan_q, scan_list) {
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+ if (test_h == h) { /* state 2. */
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+ list_del(&h->scan_list);
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+ complete_all(&h->scan_wait);
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+ mutex_unlock(&hpsa_scan_mutex);
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+ return;
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+ }
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+ }
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+ if (h->busy_scanning) { /* state 3. */
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+ mutex_unlock(&hpsa_scan_mutex);
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+ wait_for_completion(&h->scan_wait);
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+ } else { /* state 1, nothing to do. */
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+ mutex_unlock(&hpsa_scan_mutex);
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+ }
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+}
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+
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+/* hpsa_scan_func() - kernel thread used to rescan controllers
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+ * @data: Ignored.
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+ *
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+ * A kernel thread used scan for drive topology changes on
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+ * controllers. The thread processes only one controller at a time
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+ * using a queue. Controllers are added to the queue using
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+ * add_to_scan_list() and removed from the queue either after done
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+ * processing or using remove_from_scan_list().
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+ *
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+ * returns 0.
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+ **/
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+static int hpsa_scan_func(__attribute__((unused)) void *data)
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+{
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+ struct ctlr_info *h;
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+ int host_no;
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+
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+ while (1) {
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+ set_current_state(TASK_INTERRUPTIBLE);
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+ schedule();
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+ if (kthread_should_stop())
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+ break;
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+
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+ while (1) {
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+ mutex_lock(&hpsa_scan_mutex);
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+ if (list_empty(&hpsa_scan_q)) {
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+ mutex_unlock(&hpsa_scan_mutex);
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+ break;
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+ }
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+ h = list_entry(hpsa_scan_q.next, struct ctlr_info,
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+ scan_list);
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+ list_del(&h->scan_list);
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+ h->busy_scanning = 1;
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+ mutex_unlock(&hpsa_scan_mutex);
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+ host_no = h->scsi_host ? h->scsi_host->host_no : -1;
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+ hpsa_update_scsi_devices(h, host_no);
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+ complete_all(&h->scan_wait);
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+ mutex_lock(&hpsa_scan_mutex);
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+ h->busy_scanning = 0;
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+ mutex_unlock(&hpsa_scan_mutex);
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+ }
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+ }
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+ return 0;
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+}
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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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+
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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, "hpsa%d: LUN failure "
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+ "detected, action required\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, "hpsa%d: report LUN data "
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+ "changed\n", h->ctlr);
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+ /*
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+ * Here, we could call add_to_scan_list and wake up the scan thread,
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+ * except that it's quite likely that we will get more than one
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+ * REPORT_LUNS_CHANGED condition in quick succession, which means
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+ * that those which occur after the first one will likely happen
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+ * *during* the hpsa_scan_thread's rescan. And the rescan code is not
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+ * robust enough to restart in the middle, undoing what it has already
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+ * done, and it's not clear that it's even possible to do this, since
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+ * part of what it does is notify the SCSI mid layer, which starts
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+ * doing it's own i/o to read partition tables and so on, and the
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+ * driver doesn't have visibility to know what might need undoing.
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|
|
+ * In any event, if possible, it is horribly complicated to get right
|
|
|
+ * so we just don't do it for now.
|
|
|
+ *
|
|
|
+ * Note: this REPORT_LUNS_CHANGED condition only occurs on the MSA2012.
|
|
|
+ */
|
|
|
+ break;
|
|
|
+ case POWER_OR_RESET:
|
|
|
+ dev_warn(&h->pdev->dev, "hpsa%d: a power on "
|
|
|
+ "or device reset detected\n", h->ctlr);
|
|
|
+ break;
|
|
|
+ case UNIT_ATTENTION_CLEARED:
|
|
|
+ dev_warn(&h->pdev->dev, "hpsa%d: unit attention "
|
|
|
+ "cleared by another initiator\n", h->ctlr);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ dev_warn(&h->pdev->dev, "hpsa%d: unknown "
|
|
|
+ "unit attention detected\n", h->ctlr);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+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);
|
|
|
+ unsigned long *priv = shost_priv(shost);
|
|
|
+ h = (struct ctlr_info *) *priv;
|
|
|
+ if (add_to_scan_list(h)) {
|
|
|
+ wake_up_process(hpsa_scan_thread);
|
|
|
+ wait_for_completion_interruptible(&h->scan_wait);
|
|
|
+ }
|
|
|
+ return count;
|
|
|
+}
|
|
|
+
|
|
|
+/* Enqueuing and dequeuing functions for cmdlists. */
|
|
|
+static inline void addQ(struct hlist_head *list, struct CommandList *c)
|
|
|
+{
|
|
|
+ hlist_add_head(&c->list, list);
|
|
|
+}
|
|
|
+
|
|
|
+static void enqueue_cmd_and_start_io(struct ctlr_info *h,
|
|
|
+ struct CommandList *c)
|
|
|
+{
|
|
|
+ unsigned long flags;
|
|
|
+ spin_lock_irqsave(&h->lock, flags);
|
|
|
+ addQ(&h->reqQ, c);
|
|
|
+ h->Qdepth++;
|
|
|
+ start_io(h);
|
|
|
+ spin_unlock_irqrestore(&h->lock, flags);
|
|
|
+}
|
|
|
+
|
|
|
+static inline void removeQ(struct CommandList *c)
|
|
|
+{
|
|
|
+ if (WARN_ON(hlist_unhashed(&c->list)))
|
|
|
+ return;
|
|
|
+ hlist_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_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",
|
|
|
+ "UNKNOWN"
|
|
|
+};
|
|
|
+#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;
|
|
|
+ int 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 < 0 || 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 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_SCSI_DEVS_PER_HBA);
|
|
|
+
|
|
|
+ memset(&lun_taken[0], 0, HPSA_MAX_SCSI_DEVS_PER_HBA >> 3);
|
|
|
+
|
|
|
+ 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);
|
|
|
+ }
|
|
|
+
|
|
|
+ for (i = 0; i < HPSA_MAX_SCSI_DEVS_PER_HBA; i++) {
|
|
|
+ if (!test_bit(i, lun_taken)) {
|
|
|
+ /* *bus = 1; */
|
|
|
+ *target = i;
|
|
|
+ *lun = 0;
|
|
|
+ found = 1;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ 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_SCSI_DEVS_PER_HBA) {
|
|
|
+ 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;
|
|
|
+}
|
|
|
+
|
|
|
+/* 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;
|
|
|
+
|
|
|
+ if (entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA)
|
|
|
+ BUG();
|
|
|
+
|
|
|
+ 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)
|
|
|
+{
|
|
|
+ if ((is_logical_dev_addr_mode(dev1->scsi3addr) ||
|
|
|
+ (dev1->lun != -1 && dev2->lun != -1)) &&
|
|
|
+ dev1->devtype != 0x0C)
|
|
|
+ return (memcmp(dev1, dev2, sizeof(*dev1)) == 0);
|
|
|
+
|
|
|
+ /* 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 (memcmp(dev1->revision, dev2->revision, sizeof(dev1->revision)) != 0)
|
|
|
+ return 0;
|
|
|
+ if (dev1->devtype != dev2->devtype)
|
|
|
+ return 0;
|
|
|
+ if (dev1->raid_level != dev2->raid_level)
|
|
|
+ return 0;
|
|
|
+ if (dev1->bus != dev2->bus)
|
|
|
+ return 0;
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/* 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. 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
|
|
|
+ for (i = 0; i < haystack_size; i++) {
|
|
|
+ if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) {
|
|
|
+ *index = i;
|
|
|
+ if (device_is_the_same(needle, haystack[i]))
|
|
|
+ return DEVICE_SAME;
|
|
|
+ else
|
|
|
+ return DEVICE_CHANGED;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ *index = -1;
|
|
|
+ return DEVICE_NOT_FOUND;
|
|
|
+}
|
|
|
+
|
|
|
+static int 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_SCSI_DEVS_PER_HBA,
|
|
|
+ GFP_KERNEL);
|
|
|
+ removed = kzalloc(sizeof(*removed) * HPSA_MAX_SCSI_DEVS_PER_HBA,
|
|
|
+ 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.
|
|
|
+ */
|
|
|
+ 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_remove_entry(h, hostno, i,
|
|
|
+ removed, &nremoved);
|
|
|
+ (void) hpsa_scsi_add_entry(h, hostno, sd[entry],
|
|
|
+ added, &nadded);
|
|
|
+ /* add can't fail, we just removed one. */
|
|
|
+ sd[entry] = NULL; /* prevent it from being freed */
|
|
|
+ }
|
|
|
+ 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;
|
|
|
+ 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);
|
|
|
+
|
|
|
+ /* 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);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Lookup bus/target/lun and retrun 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)
|
|
|
+{
|
|
|
+ return; /* nothing to do. */
|
|
|
+}
|
|
|
+
|
|
|
+static void hpsa_scsi_setup(struct ctlr_info *h)
|
|
|
+{
|
|
|
+ h->ndevices = 0;
|
|
|
+ h->scsi_host = NULL;
|
|
|
+ spin_lock_init(&h->devlock);
|
|
|
+ return;
|
|
|
+}
|
|
|
+
|
|
|
+static void complete_scsi_command(struct CommandList *cp,
|
|
|
+ int timeout, __u32 tag)
|
|
|
+{
|
|
|
+ struct scsi_cmnd *cmd;
|
|
|
+ struct ctlr_info *h;
|
|
|
+ struct ErrorInfo *ei;
|
|
|
+
|
|
|
+ unsigned char sense_key;
|
|
|
+ unsigned char asc; /* additional sense code */
|
|
|
+ unsigned char ascq; /* additional sense code qualifier */
|
|
|
+
|
|
|
+ ei = cp->err_info;
|
|
|
+ cmd = (struct scsi_cmnd *) cp->scsi_cmd;
|
|
|
+ h = cp->h;
|
|
|
+
|
|
|
+ scsi_dma_unmap(cmd); /* undo the DMA mappings */
|
|
|
+
|
|
|
+ cmd->result = (DID_OK << 16); /* host byte */
|
|
|
+ cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
|
|
|
+ cmd->result |= (ei->ScsiStatus << 1);
|
|
|
+
|
|
|
+ /* copy the sense data whether we need to or not. */
|
|
|
+ memcpy(cmd->sense_buffer, ei->SenseInfo,
|
|
|
+ ei->SenseLen > SCSI_SENSE_BUFFERSIZE ?
|
|
|
+ SCSI_SENSE_BUFFERSIZE :
|
|
|
+ ei->SenseLen);
|
|
|
+ scsi_set_resid(cmd, ei->ResidualCnt);
|
|
|
+
|
|
|
+ if (ei->CommandStatus == 0) {
|
|
|
+ cmd->scsi_done(cmd);
|
|
|
+ cmd_free(h, cp);
|
|
|
+ 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 (check_for_unit_attention(h, cp)) {
|
|
|
+ cmd->result = DID_SOFT_ERROR << 16;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (sense_key == ILLEGAL_REQUEST) {
|
|
|
+ /*
|
|
|
+ * SCSI REPORT_LUNS is commonly unsupported on
|
|
|
+ * Smart Array. Suppress noisy complaint.
|
|
|
+ */
|
|
|
+ if (cp->Request.CDB[0] == REPORT_LUNS)
|
|
|
+ break;
|
|
|
+
|
|
|
+ /* If ASC/ASCQ indicate Logical Unit
|
|
|
+ * Not Supported condition,
|
|
|
+ */
|
|
|
+ if ((asc == 0x25) && (ascq == 0x0)) {
|
|
|
+ dev_warn(&h->pdev->dev, "cp %p "
|
|
|
+ "has check condition\n", cp);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (sense_key == NOT_READY) {
|
|
|
+ /* If Sense is Not Ready, Logical Unit
|
|
|
+ * Not ready, Manual Intervention
|
|
|
+ * required
|
|
|
+ */
|
|
|
+ if ((asc == 0x04) && (ascq == 0x03)) {
|
|
|
+ cmd->result = DID_NO_CONNECT << 16;
|
|
|
+ dev_warn(&h->pdev->dev, "cp %p "
|
|
|
+ "has check condition: unit "
|
|
|
+ "not ready, manual "
|
|
|
+ "intervention required\n", cp);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ /* Must be some other type of check condition */
|
|
|
+ dev_warn(&h->pdev->dev, "cp %p has check condition: "
|
|
|
+ "unknown type: "
|
|
|
+ "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
|
|
|
+ "Returning result: 0x%x, "
|
|
|
+ "cmd=[%02x %02x %02x %02x %02x "
|
|
|
+ "%02x %02x %02x %02x %02x]\n",
|
|
|
+ cp, sense_key, asc, ascq,
|
|
|
+ cmd->result,
|
|
|
+ cmd->cmnd[0], cmd->cmnd[1],
|
|
|
+ cmd->cmnd[2], cmd->cmnd[3],
|
|
|
+ cmd->cmnd[4], cmd->cmnd[5],
|
|
|
+ cmd->cmnd[6], cmd->cmnd[7],
|
|
|
+ cmd->cmnd[8], cmd->cmnd[9]);
|
|
|
+ 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:
|
|
|
+ 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_ABORT << 16;
|
|
|
+ dev_warn(&h->pdev->dev, "cp %p aborted do 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;
|
|
|
+ default:
|
|
|
+ cmd->result = DID_ERROR << 16;
|
|
|
+ dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n",
|
|
|
+ cp, ei->CommandStatus);
|
|
|
+ }
|
|
|
+ cmd->scsi_done(cmd);
|
|
|
+ cmd_free(h, cp);
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_scsi_detect(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;
|
|
|
+ h->scsi_host = sh;
|
|
|
+ sh->hostdata[0] = (unsigned long) h;
|
|
|
+ sh->irq = h->intr[SIMPLE_MODE_INT];
|
|
|
+ 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, "hpsa_scsi_detect: scsi_add_host"
|
|
|
+ " failed for controller %d\n", h->ctlr);
|
|
|
+ scsi_host_put(sh);
|
|
|
+ return -1;
|
|
|
+ fail:
|
|
|
+ dev_err(&h->pdev->dev, "hpsa_scsi_detect: scsi_host_alloc"
|
|
|
+ " failed for controller %d\n", h->ctlr);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+static void hpsa_pci_unmap(struct pci_dev *pdev,
|
|
|
+ struct CommandList *c, int sg_used, int data_direction)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+ union u64bit addr64;
|
|
|
+
|
|
|
+ for (i = 0; i < sg_used; i++) {
|
|
|
+ addr64.val32.lower = c->SG[i].Addr.lower;
|
|
|
+ addr64.val32.upper = c->SG[i].Addr.upper;
|
|
|
+ pci_unmap_single(pdev, (dma_addr_t) addr64.val, c->SG[i].Len,
|
|
|
+ data_direction);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void 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 = 0;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ addr64 = (__u64) pci_map_single(pdev, buf, buflen, data_direction);
|
|
|
+ cp->SG[0].Addr.lower =
|
|
|
+ (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF);
|
|
|
+ cp->SG[0].Addr.upper =
|
|
|
+ (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF);
|
|
|
+ cp->SG[0].Len = buflen;
|
|
|
+ cp->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */
|
|
|
+ cp->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */
|
|
|
+}
|
|
|
+
|
|
|
+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 void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
|
|
|
+ struct CommandList *c, int data_direction)
|
|
|
+{
|
|
|
+ int retry_count = 0;
|
|
|
+
|
|
|
+ do {
|
|
|
+ memset(c->err_info, 0, sizeof(c->err_info));
|
|
|
+ hpsa_scsi_do_simple_cmd_core(h, c);
|
|
|
+ retry_count++;
|
|
|
+ } while (check_for_unit_attention(h, c) && retry_count <= 3);
|
|
|
+ hpsa_pci_unmap(h->pdev, c, 1, data_direction);
|
|
|
+}
|
|
|
+
|
|
|
+static void hpsa_scsi_interpret_error(struct CommandList *cp)
|
|
|
+{
|
|
|
+ struct ErrorInfo *ei;
|
|
|
+ struct device *d = &cp->h->pdev->dev;
|
|
|
+
|
|
|
+ ei = cp->err_info;
|
|
|
+ switch (ei->CommandStatus) {
|
|
|
+ case CMD_TARGET_STATUS:
|
|
|
+ dev_warn(d, "cmd %p has completed with errors\n", cp);
|
|
|
+ dev_warn(d, "cmd %p has SCSI Status = %x\n", cp,
|
|
|
+ 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. */
|
|
|
+ dev_info(d, "UNDERRUN\n");
|
|
|
+ break;
|
|
|
+ case CMD_DATA_OVERRUN:
|
|
|
+ dev_warn(d, "cp %p has completed with data overrun\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_INVALID: {
|
|
|
+ /* controller unfortunately reports SCSI passthru's
|
|
|
+ * to non-existent targets as invalid commands.
|
|
|
+ */
|
|
|
+ dev_warn(d, "cp %p is reported invalid (probably means "
|
|
|
+ "target device no longer present)\n", cp);
|
|
|
+ /* print_bytes((unsigned char *) cp, sizeof(*cp), 1, 0);
|
|
|
+ print_cmd(cp); */
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case CMD_PROTOCOL_ERR:
|
|
|
+ dev_warn(d, "cp %p has protocol error \n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_HARDWARE_ERR:
|
|
|
+ /* cmd->result = DID_ERROR << 16; */
|
|
|
+ dev_warn(d, "cp %p had hardware error\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_CONNECTION_LOST:
|
|
|
+ dev_warn(d, "cp %p had connection lost\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_ABORTED:
|
|
|
+ dev_warn(d, "cp %p was aborted\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_ABORT_FAILED:
|
|
|
+ dev_warn(d, "cp %p reports abort failed\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_UNSOLICITED_ABORT:
|
|
|
+ dev_warn(d, "cp %p aborted due to an unsolicited abort\n", cp);
|
|
|
+ break;
|
|
|
+ case CMD_TIMEOUT:
|
|
|
+ dev_warn(d, "cp %p timed out\n", cp);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ dev_warn(d, "cp %p returned unknown status %x\n", cp,
|
|
|
+ ei->CommandStatus);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
|
|
|
+ unsigned char 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 -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, page, scsi3addr, TYPE_CMD);
|
|
|
+ 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(c);
|
|
|
+ rc = -1;
|
|
|
+ }
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr)
|
|
|
+{
|
|
|
+ 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 -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, scsi3addr, TYPE_MSG);
|
|
|
+ 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(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, 0xC1, buf, 64);
|
|
|
+ if (rc == 0)
|
|
|
+ *raid_level = buf[8];
|
|
|
+ if (*raid_level > RAID_UNKNOWN)
|
|
|
+ *raid_level = RAID_UNKNOWN;
|
|
|
+ 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 -1;
|
|
|
+ rc = hpsa_scsi_do_inquiry(h, scsi3addr, 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;
|
|
|
+ }
|
|
|
+
|
|
|
+ memset(&scsi3addr[0], 0, 8); /* address the controller */
|
|
|
+
|
|
|
+ fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h,
|
|
|
+ buf, bufsize, 0, scsi3addr, TYPE_CMD);
|
|
|
+ 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(c);
|
|
|
+ rc = -1;
|
|
|
+ }
|
|
|
+ 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;
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_update_device_info(struct ctlr_info *h,
|
|
|
+ unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device)
|
|
|
+{
|
|
|
+#define OBDR_TAPE_INQ_SIZE 49
|
|
|
+ unsigned char *inq_buff = NULL;
|
|
|
+
|
|
|
+ inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
|
|
|
+ if (!inq_buff)
|
|
|
+ goto bail_out;
|
|
|
+
|
|
|
+ memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE);
|
|
|
+ /* 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;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* As a side effect, record the firmware version number
|
|
|
+ * if we happen to be talking to the RAID controller.
|
|
|
+ */
|
|
|
+ if (is_hba_lunid(scsi3addr))
|
|
|
+ memcpy(h->firm_ver, &inq_buff[32], 4);
|
|
|
+
|
|
|
+ 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));
|
|
|
+ memcpy(this_device->revision, &inq_buff[32],
|
|
|
+ sizeof(this_device->revision));
|
|
|
+ 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))
|
|
|
+ hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level);
|
|
|
+ else
|
|
|
+ this_device->raid_level = RAID_UNKNOWN;
|
|
|
+
|
|
|
+ kfree(inq_buff);
|
|
|
+ return 0;
|
|
|
+
|
|
|
+bail_out:
|
|
|
+ kfree(inq_buff);
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned char *msa2xxx_model[] = {
|
|
|
+ "MSA2012",
|
|
|
+ "MSA2024",
|
|
|
+ "MSA2312",
|
|
|
+ "MSA2324",
|
|
|
+ NULL,
|
|
|
+};
|
|
|
+
|
|
|
+static int is_msa2xxx(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+
|
|
|
+ for (i = 0; msa2xxx_model[i]; i++)
|
|
|
+ if (strncmp(device->model, msa2xxx_model[i],
|
|
|
+ strlen(msa2xxx_model[i])) == 0)
|
|
|
+ return 1;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* Helper function to assign bus, target, lun mapping of devices.
|
|
|
+ * Puts non-msa2xxx logical volumes on bus 0, msa2xxx 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, int *bus, int *target, int *lun,
|
|
|
+ struct hpsa_scsi_dev_t *device)
|
|
|
+{
|
|
|
+
|
|
|
+ __u32 lunid;
|
|
|
+
|
|
|
+ if (is_logical_dev_addr_mode(lunaddrbytes)) {
|
|
|
+ /* logical device */
|
|
|
+ memcpy(&lunid, lunaddrbytes, sizeof(lunid));
|
|
|
+ lunid = le32_to_cpu(lunid);
|
|
|
+
|
|
|
+ if (is_msa2xxx(h, device)) {
|
|
|
+ *bus = 1;
|
|
|
+ *target = (lunid >> 16) & 0x3fff;
|
|
|
+ *lun = lunid & 0x00ff;
|
|
|
+ } else {
|
|
|
+ *bus = 0;
|
|
|
+ *lun = 0;
|
|
|
+ *target = lunid & 0x3fff;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ /* physical device */
|
|
|
+ if (is_hba_lunid(lunaddrbytes))
|
|
|
+ *bus = 3;
|
|
|
+ else
|
|
|
+ *bus = 2;
|
|
|
+ *target = -1;
|
|
|
+ *lun = -1; /* we will fill these in later. */
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * If there is no lun 0 on a target, linux won't find any devices.
|
|
|
+ * For the MSA2xxx boxes, 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_msa2xxx_enclosure_device(struct ctlr_info *h,
|
|
|
+ struct hpsa_scsi_dev_t *tmpdevice,
|
|
|
+ struct hpsa_scsi_dev_t *this_device, __u8 *lunaddrbytes,
|
|
|
+ int bus, int target, int lun, unsigned long lunzerobits[],
|
|
|
+ int *nmsa2xxx_enclosures)
|
|
|
+{
|
|
|
+ unsigned char scsi3addr[8];
|
|
|
+
|
|
|
+ if (test_bit(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_msa2xxx(h, tmpdevice))
|
|
|
+ return 0; /* It's only the MSA2xxx that have this problem. */
|
|
|
+
|
|
|
+ if (lun == 0) /* if lun is 0, then obviously we have a lun 0. */
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (is_hba_lunid(scsi3addr))
|
|
|
+ return 0; /* Don't add the RAID controller here. */
|
|
|
+
|
|
|
+#define MAX_MSA2XXX_ENCLOSURES 32
|
|
|
+ if (*nmsa2xxx_enclosures >= MAX_MSA2XXX_ENCLOSURES) {
|
|
|
+ dev_warn(&h->pdev->dev, "Maximum number of MSA2XXX "
|
|
|
+ "enclosures exceeded. Check your hardware "
|
|
|
+ "configuration.");
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ memset(scsi3addr, 0, 8);
|
|
|
+ scsi3addr[3] = target;
|
|
|
+ if (hpsa_update_device_info(h, scsi3addr, this_device))
|
|
|
+ return 0;
|
|
|
+ (*nmsa2xxx_enclosures)++;
|
|
|
+ hpsa_set_bus_target_lun(this_device, bus, target, 0);
|
|
|
+ set_bit(target, lunzerobits);
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * 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 reportlunsize,
|
|
|
+ struct ReportLUNdata *physdev, __u32 *nphysicals,
|
|
|
+ struct ReportLUNdata *logdev, __u32 *nlogicals)
|
|
|
+{
|
|
|
+ if (hpsa_scsi_do_report_phys_luns(h, physdev, reportlunsize, 0)) {
|
|
|
+ dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ memcpy(nphysicals, &physdev->LUNListLength[0], sizeof(*nphysicals));
|
|
|
+ *nphysicals = be32_to_cpu(*nphysicals) / 8;
|
|
|
+#ifdef DEBUG
|
|
|
+ dev_info(&h->pdev->dev, "number of physical luns is %d\n", *nphysicals);
|
|
|
+#endif
|
|
|
+ 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, reportlunsize)) {
|
|
|
+ dev_err(&h->pdev->dev, "report logical LUNs failed.\n");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ memcpy(nlogicals, &logdev->LUNListLength[0], sizeof(*nlogicals));
|
|
|
+ *nlogicals = be32_to_cpu(*nlogicals) / 8;
|
|
|
+#ifdef DEBUG
|
|
|
+ dev_info(&h->pdev->dev, "number of logical luns is %d\n", *nlogicals);
|
|
|
+#endif
|
|
|
+ /* 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 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 ReportLUNdata *physdev_list = NULL;
|
|
|
+ struct ReportLUNdata *logdev_list = NULL;
|
|
|
+ unsigned char *inq_buff = NULL;
|
|
|
+ __u32 nphysicals = 0;
|
|
|
+ __u32 nlogicals = 0;
|
|
|
+ __u32 ndev_allocated = 0;
|
|
|
+ struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice;
|
|
|
+ int ncurrent = 0;
|
|
|
+ int reportlunsize = sizeof(*physdev_list) + HPSA_MAX_PHYS_LUN * 8;
|
|
|
+ int i, nmsa2xxx_enclosures, ndevs_to_allocate;
|
|
|
+ int bus, target, lun;
|
|
|
+ DECLARE_BITMAP(lunzerobits, HPSA_MAX_TARGETS_PER_CTLR);
|
|
|
+
|
|
|
+ currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_SCSI_DEVS_PER_HBA,
|
|
|
+ GFP_KERNEL);
|
|
|
+ physdev_list = kzalloc(reportlunsize, GFP_KERNEL);
|
|
|
+ logdev_list = kzalloc(reportlunsize, GFP_KERNEL);
|
|
|
+ inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
|
|
|
+ tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL);
|
|
|
+
|
|
|
+ if (!currentsd || !physdev_list || !logdev_list ||
|
|
|
+ !inq_buff || !tmpdevice) {
|
|
|
+ dev_err(&h->pdev->dev, "out of memory\n");
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ memset(lunzerobits, 0, sizeof(lunzerobits));
|
|
|
+
|
|
|
+ if (hpsa_gather_lun_info(h, reportlunsize, physdev_list, &nphysicals,
|
|
|
+ logdev_list, &nlogicals))
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ /* We might see up to 32 MSA2xxx enclosures, actually 8 of them
|
|
|
+ * but each of them 4 times through different paths. The plus 1
|
|
|
+ * is for the RAID controller.
|
|
|
+ */
|
|
|
+ ndevs_to_allocate = nphysicals + nlogicals + MAX_MSA2XXX_ENCLOSURES + 1;
|
|
|
+
|
|
|
+ /* Allocate the per device structures */
|
|
|
+ for (i = 0; i < ndevs_to_allocate; i++) {
|
|
|
+ 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++;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* adjust our table of devices */
|
|
|
+ nmsa2xxx_enclosures = 0;
|
|
|
+ for (i = 0; i < nphysicals + nlogicals + 1; i++) {
|
|
|
+ __u8 *lunaddrbytes;
|
|
|
+
|
|
|
+ /* Figure out where the LUN ID info is coming from */
|
|
|
+ if (i < nphysicals)
|
|
|
+ lunaddrbytes = &physdev_list->LUN[i][0];
|
|
|
+ else
|
|
|
+ if (i < nphysicals + nlogicals)
|
|
|
+ lunaddrbytes =
|
|
|
+ &logdev_list->LUN[i-nphysicals][0];
|
|
|
+ else /* jam in the RAID controller at the end */
|
|
|
+ lunaddrbytes = RAID_CTLR_LUNID;
|
|
|
+
|
|
|
+ /* skip masked physical devices. */
|
|
|
+ if (lunaddrbytes[3] & 0xC0 && i < nphysicals)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ /* Get device type, vendor, model, device id */
|
|
|
+ if (hpsa_update_device_info(h, lunaddrbytes, tmpdevice))
|
|
|
+ continue; /* skip it if we can't talk to it. */
|
|
|
+ figure_bus_target_lun(h, lunaddrbytes, &bus, &target, &lun,
|
|
|
+ tmpdevice);
|
|
|
+ this_device = currentsd[ncurrent];
|
|
|
+
|
|
|
+ /*
|
|
|
+ * For the msa2xxx boxes, 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_msa2xxx_enclosure_device(h, tmpdevice, this_device,
|
|
|
+ lunaddrbytes, bus, target, lun, lunzerobits,
|
|
|
+ &nmsa2xxx_enclosures)) {
|
|
|
+ ncurrent++;
|
|
|
+ this_device = currentsd[ncurrent];
|
|
|
+ }
|
|
|
+
|
|
|
+ *this_device = *tmpdevice;
|
|
|
+ hpsa_set_bus_target_lun(this_device, bus, target, lun);
|
|
|
+
|
|
|
+ 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 "$DR-10" in bytes 43-48 of
|
|
|
+ * the inquiry data.
|
|
|
+ */
|
|
|
+ char obdr_sig[7];
|
|
|
+#define OBDR_TAPE_SIG "$DR-10"
|
|
|
+ strncpy(obdr_sig, &inq_buff[43], 6);
|
|
|
+ obdr_sig[6] = '\0';
|
|
|
+ if (strncmp(obdr_sig, OBDR_TAPE_SIG, 6) != 0)
|
|
|
+ /* Not OBDR device, ignore it. */
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ ncurrent++;
|
|
|
+ break;
|
|
|
+ case TYPE_DISK:
|
|
|
+ if (i < nphysicals)
|
|
|
+ break;
|
|
|
+ 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_SCSI_DEVS_PER_HBA)
|
|
|
+ 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(inq_buff);
|
|
|
+ kfree(physdev_list);
|
|
|
+ kfree(logdev_list);
|
|
|
+ return;
|
|
|
+}
|
|
|
+
|
|
|
+/* 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 pci_dev *pdev,
|
|
|
+ struct CommandList *cp,
|
|
|
+ struct scsi_cmnd *cmd)
|
|
|
+{
|
|
|
+ unsigned int len;
|
|
|
+ struct scatterlist *sg;
|
|
|
+ __u64 addr64;
|
|
|
+ int use_sg, i;
|
|
|
+
|
|
|
+ BUG_ON(scsi_sg_count(cmd) > MAXSGENTRIES);
|
|
|
+
|
|
|
+ use_sg = scsi_dma_map(cmd);
|
|
|
+ if (use_sg < 0)
|
|
|
+ return use_sg;
|
|
|
+
|
|
|
+ if (!use_sg)
|
|
|
+ goto sglist_finished;
|
|
|
+
|
|
|
+ scsi_for_each_sg(cmd, sg, use_sg, i) {
|
|
|
+ addr64 = (__u64) sg_dma_address(sg);
|
|
|
+ len = sg_dma_len(sg);
|
|
|
+ cp->SG[i].Addr.lower =
|
|
|
+ (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF);
|
|
|
+ cp->SG[i].Addr.upper =
|
|
|
+ (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF);
|
|
|
+ cp->SG[i].Len = len;
|
|
|
+ cp->SG[i].Ext = 0; /* we are not chaining */
|
|
|
+ }
|
|
|
+
|
|
|
+sglist_finished:
|
|
|
+
|
|
|
+ cp->Header.SGList = (__u8) use_sg; /* no. SGs contig in this cmd */
|
|
|
+ cp->Header.SGTotal = (__u16) use_sg; /* total sgs in this cmd list */
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static int hpsa_scsi_queue_command(struct scsi_cmnd *cmd,
|
|
|
+ void (*done)(struct scsi_cmnd *))
|
|
|
+{
|
|
|
+ struct ctlr_info *h;
|
|
|
+ struct hpsa_scsi_dev_t *dev;
|
|
|
+ unsigned char scsi3addr[8];
|
|
|
+ struct CommandList *c;
|
|
|
+ unsigned long flags;
|
|
|
+
|
|
|
+ /* 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;
|
|
|
+ done(cmd);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr));
|
|
|
+
|
|
|
+ /* Need a lock as this is being allocated from the pool */
|
|
|
+ spin_lock_irqsave(&h->lock, flags);
|
|
|
+ c = cmd_alloc(h);
|
|
|
+ spin_unlock_irqrestore(&h->lock, flags);
|
|
|
+ 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 */
|
|
|
+
|
|
|
+ cmd->scsi_done = done; /* save this for use by completion code */
|
|
|
+
|
|
|
+ /* save c in case we have to abort it */
|
|
|
+ cmd->host_scribble = (unsigned char *) c;
|
|
|
+
|
|
|
+ c->cmd_type = CMD_SCSI;
|
|
|
+ c->scsi_cmd = cmd;
|
|
|
+ c->Header.ReplyQueue = 0; /* unused in simple mode */
|
|
|
+ memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8);
|
|
|
+ c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */
|
|
|
+
|
|
|
+ /* 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);
|
|
|
+ c->Request.Type.Type = TYPE_CMD;
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ switch (cmd->sc_data_direction) {
|
|
|
+ case DMA_TO_DEVICE:
|
|
|
+ c->Request.Type.Direction = XFER_WRITE;
|
|
|
+ break;
|
|
|
+ case DMA_FROM_DEVICE:
|
|
|
+ c->Request.Type.Direction = XFER_READ;
|
|
|
+ break;
|
|
|
+ case DMA_NONE:
|
|
|
+ c->Request.Type.Direction = 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.Direction = 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->pdev, 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 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)
|
|
|
+{
|
|
|
+ int rc;
|
|
|
+
|
|
|
+ hpsa_update_scsi_devices(h, -1);
|
|
|
+ rc = hpsa_scsi_detect(h);
|
|
|
+ if (rc != 0)
|
|
|
+ dev_err(&h->pdev->dev, "hpsa_register_scsi: failed"
|
|
|
+ " hpsa_scsi_detect(), rc is %d\n", rc);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+static int wait_for_device_to_become_ready(struct ctlr_info *h,
|
|
|
+ unsigned char lunaddr[])
|
|
|
+{
|
|
|
+ int rc = 0;
|
|
|
+ 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++;
|
|
|
+
|
|
|
+ /* 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(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_warn(&h->pdev->dev, "resetting drive\n");
|
|
|
+
|
|
|
+ dev = scsicmd->device->hostdata;
|
|
|
+ if (!dev) {
|
|
|
+ dev_err(&h->pdev->dev, "hpsa_eh_device_reset_handler: "
|
|
|
+ "device lookup failed.\n");
|
|
|
+ return FAILED;
|
|
|
+ }
|
|
|
+ /* send a reset to the SCSI LUN which the command was sent to */
|
|
|
+ rc = hpsa_send_reset(h, dev->scsi3addr);
|
|
|
+ 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;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * 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;
|
|
|
+
|
|
|
+ do {
|
|
|
+ i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
|
|
|
+ if (i == h->nr_cmds)
|
|
|
+ return NULL;
|
|
|
+ } while (test_and_set_bit
|
|
|
+ (i & (BITS_PER_LONG - 1),
|
|
|
+ h->cmd_pool_bits + (i / BITS_PER_LONG)) != 0);
|
|
|
+ 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);
|
|
|
+ h->nr_allocs++;
|
|
|
+
|
|
|
+ c->cmdindex = i;
|
|
|
+
|
|
|
+ INIT_HLIST_NODE(&c->list);
|
|
|
+ c->busaddr = (__u32) cmd_dma_handle;
|
|
|
+ temp64.val = (__u64) err_dma_handle;
|
|
|
+ c->ErrDesc.Addr.lower = temp64.val32.lower;
|
|
|
+ c->ErrDesc.Addr.upper = temp64.val32.upper;
|
|
|
+ c->ErrDesc.Len = 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;
|
|
|
+ union u64bit temp64;
|
|
|
+ dma_addr_t cmd_dma_handle, err_dma_handle;
|
|
|
+
|
|
|
+ c = pci_alloc_consistent(h->pdev, sizeof(*c), &cmd_dma_handle);
|
|
|
+ if (c == NULL)
|
|
|
+ return NULL;
|
|
|
+ memset(c, 0, sizeof(*c));
|
|
|
+
|
|
|
+ c->cmdindex = -1;
|
|
|
+
|
|
|
+ c->err_info = pci_alloc_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;
|
|
|
+ }
|
|
|
+ memset(c->err_info, 0, sizeof(*c->err_info));
|
|
|
+
|
|
|
+ INIT_HLIST_NODE(&c->list);
|
|
|
+ c->busaddr = (__u32) cmd_dma_handle;
|
|
|
+ temp64.val = (__u64) err_dma_handle;
|
|
|
+ c->ErrDesc.Addr.lower = temp64.val32.lower;
|
|
|
+ c->ErrDesc.Addr.upper = temp64.val32.upper;
|
|
|
+ c->ErrDesc.Len = 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));
|
|
|
+ h->nr_frees++;
|
|
|
+}
|
|
|
+
|
|
|
+static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
|
|
|
+{
|
|
|
+ union u64bit temp64;
|
|
|
+
|
|
|
+ temp64.val32.lower = c->ErrDesc.Addr.lower;
|
|
|
+ temp64.val32.upper = c->ErrDesc.Addr.upper;
|
|
|
+ pci_free_consistent(h->pdev, sizeof(*c->err_info),
|
|
|
+ c->err_info, (dma_addr_t) temp64.val);
|
|
|
+ pci_free_consistent(h->pdev, sizeof(*c),
|
|
|
+ c, (dma_addr_t) c->busaddr);
|
|
|
+}
|
|
|
+
|
|
|
+#ifdef CONFIG_COMPAT
|
|
|
+
|
|
|
+static int do_ioctl(struct scsi_device *dev, int cmd, void *arg)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ lock_kernel();
|
|
|
+ ret = hpsa_ioctl(dev, cmd, arg);
|
|
|
+ unlock_kernel();
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg);
|
|
|
+static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
|
|
|
+ int cmd, void *arg);
|
|
|
+
|
|
|
+static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void *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 do_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;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *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;
|
|
|
+
|
|
|
+ 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 = do_ioctl(dev, CCISS_PASSTHRU, (void *)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 *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;
|
|
|
+
|
|
|
+ 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 = do_ioctl(dev, CCISS_BIG_PASSTHRU, (void *)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;
|
|
|
+}
|
|
|
+#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;
|
|
|
+ union u64bit temp64;
|
|
|
+
|
|
|
+ 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)) {
|
|
|
+ kfree(buff);
|
|
|
+ return -EFAULT;
|
|
|
+ }
|
|
|
+ } else
|
|
|
+ memset(buff, 0, iocommand.buf_size);
|
|
|
+ c = cmd_special_alloc(h);
|
|
|
+ if (c == NULL) {
|
|
|
+ kfree(buff);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ /* 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 = 1;
|
|
|
+ } else { /* no buffers to fill */
|
|
|
+ c->Header.SGList = 0;
|
|
|
+ c->Header.SGTotal = 0;
|
|
|
+ }
|
|
|
+ memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN));
|
|
|
+ /* use the kernel address the cmd block for tag */
|
|
|
+ c->Header.Tag.lower = 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.val = pci_map_single(h->pdev, buff,
|
|
|
+ iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
|
|
|
+ c->SG[0].Addr.lower = temp64.val32.lower;
|
|
|
+ c->SG[0].Addr.upper = temp64.val32.upper;
|
|
|
+ c->SG[0].Len = iocommand.buf_size;
|
|
|
+ c->SG[0].Ext = 0; /* we are not chaining*/
|
|
|
+ }
|
|
|
+ hpsa_scsi_do_simple_cmd_core(h, c);
|
|
|
+ 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))) {
|
|
|
+ kfree(buff);
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ return -EFAULT;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (iocommand.Request.Type.Direction == XFER_READ) {
|
|
|
+ /* Copy the data out of the buffer we created */
|
|
|
+ if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
|
|
|
+ kfree(buff);
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ return -EFAULT;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ kfree(buff);
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+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;
|
|
|
+ union u64bit 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 * MAXSGENTRIES) {
|
|
|
+ status = -EINVAL;
|
|
|
+ goto cleanup1;
|
|
|
+ }
|
|
|
+ buff = kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
|
|
|
+ if (!buff) {
|
|
|
+ status = -ENOMEM;
|
|
|
+ goto cleanup1;
|
|
|
+ }
|
|
|
+ buff_size = kmalloc(MAXSGENTRIES * 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 = -ENOMEM;
|
|
|
+ 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;
|
|
|
+
|
|
|
+ if (ioc->buf_size > 0) {
|
|
|
+ c->Header.SGList = sg_used;
|
|
|
+ c->Header.SGTotal = sg_used;
|
|
|
+ } else {
|
|
|
+ c->Header.SGList = 0;
|
|
|
+ c->Header.SGTotal = 0;
|
|
|
+ }
|
|
|
+ memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN));
|
|
|
+ c->Header.Tag.lower = 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.val = pci_map_single(h->pdev, buff[i],
|
|
|
+ buff_size[i], PCI_DMA_BIDIRECTIONAL);
|
|
|
+ c->SG[i].Addr.lower = temp64.val32.lower;
|
|
|
+ c->SG[i].Addr.upper = temp64.val32.upper;
|
|
|
+ c->SG[i].Len = buff_size[i];
|
|
|
+ /* we are not chaining */
|
|
|
+ c->SG[i].Ext = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ hpsa_scsi_do_simple_cmd_core(h, c);
|
|
|
+ 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))) {
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ status = -EFAULT;
|
|
|
+ goto cleanup1;
|
|
|
+ }
|
|
|
+ if (ioc->Request.Type.Direction == XFER_READ) {
|
|
|
+ /* 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])) {
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ status = -EFAULT;
|
|
|
+ goto cleanup1;
|
|
|
+ }
|
|
|
+ ptr += buff_size[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ cmd_special_free(h, c);
|
|
|
+ status = 0;
|
|
|
+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);
|
|
|
+}
|
|
|
+/*
|
|
|
+ * ioctl
|
|
|
+ */
|
|
|
+static int hpsa_ioctl(struct scsi_device *dev, int cmd, void *arg)
|
|
|
+{
|
|
|
+ struct ctlr_info *h;
|
|
|
+ void __user *argp = (void __user *)arg;
|
|
|
+
|
|
|
+ h = sdev_to_hba(dev);
|
|
|
+
|
|
|
+ switch (cmd) {
|
|
|
+ case CCISS_DEREGDISK:
|
|
|
+ case CCISS_REGNEWDISK:
|
|
|
+ case CCISS_REGNEWD:
|
|
|
+ hpsa_update_scsi_devices(h, dev->host->host_no);
|
|
|
+ return 0;
|
|
|
+ case CCISS_GETPCIINFO:
|
|
|
+ return hpsa_getpciinfo_ioctl(h, argp);
|
|
|
+ case CCISS_GETDRIVVER:
|
|
|
+ return hpsa_getdrivver_ioctl(h, argp);
|
|
|
+ case CCISS_PASSTHRU:
|
|
|
+ return hpsa_passthru_ioctl(h, argp);
|
|
|
+ case CCISS_BIG_PASSTHRU:
|
|
|
+ return hpsa_big_passthru_ioctl(h, argp);
|
|
|
+ default:
|
|
|
+ return -ENOTTY;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void fill_cmd(struct CommandList *c, __u8 cmd, struct ctlr_info *h,
|
|
|
+ void *buff, size_t size, __u8 page_code, unsigned char *scsi3addr,
|
|
|
+ int cmd_type)
|
|
|
+{
|
|
|
+ int pci_dir = XFER_NONE;
|
|
|
+
|
|
|
+ c->cmd_type = CMD_IOCTL_PEND;
|
|
|
+ c->Header.ReplyQueue = 0;
|
|
|
+ if (buff != NULL && size > 0) {
|
|
|
+ c->Header.SGList = 1;
|
|
|
+ c->Header.SGTotal = 1;
|
|
|
+ } else {
|
|
|
+ c->Header.SGList = 0;
|
|
|
+ c->Header.SGTotal = 0;
|
|
|
+ }
|
|
|
+ c->Header.Tag.lower = c->busaddr;
|
|
|
+ memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8);
|
|
|
+
|
|
|
+ c->Request.Type.Type = cmd_type;
|
|
|
+ if (cmd_type == TYPE_CMD) {
|
|
|
+ switch (cmd) {
|
|
|
+ case HPSA_INQUIRY:
|
|
|
+ /* are we trying to read a vital product page */
|
|
|
+ if (page_code != 0) {
|
|
|
+ c->Request.CDB[1] = 0x01;
|
|
|
+ c->Request.CDB[2] = page_code;
|
|
|
+ }
|
|
|
+ c->Request.CDBLen = 6;
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = 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.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = 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_READ_CAPACITY:
|
|
|
+ c->Request.CDBLen = 10;
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = XFER_READ;
|
|
|
+ c->Request.Timeout = 0;
|
|
|
+ c->Request.CDB[0] = cmd;
|
|
|
+ break;
|
|
|
+ case HPSA_CACHE_FLUSH:
|
|
|
+ c->Request.CDBLen = 12;
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = XFER_WRITE;
|
|
|
+ c->Request.Timeout = 0;
|
|
|
+ c->Request.CDB[0] = BMIC_WRITE;
|
|
|
+ c->Request.CDB[6] = BMIC_CACHE_FLUSH;
|
|
|
+ break;
|
|
|
+ case TEST_UNIT_READY:
|
|
|
+ c->Request.CDBLen = 6;
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = XFER_NONE;
|
|
|
+ c->Request.Timeout = 0;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd);
|
|
|
+ BUG();
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ } else if (cmd_type == TYPE_MSG) {
|
|
|
+ switch (cmd) {
|
|
|
+
|
|
|
+ case HPSA_DEVICE_RESET_MSG:
|
|
|
+ c->Request.CDBLen = 16;
|
|
|
+ c->Request.Type.Type = 1; /* It is a MSG not a CMD */
|
|
|
+ c->Request.Type.Attribute = ATTR_SIMPLE;
|
|
|
+ c->Request.Type.Direction = XFER_NONE;
|
|
|
+ c->Request.Timeout = 0; /* Don't time out */
|
|
|
+ c->Request.CDB[0] = 0x01; /* RESET_MSG is 0x01 */
|
|
|
+ c->Request.CDB[1] = 0x03; /* Reset target above */
|
|
|
+ /* 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;
|
|
|
+
|
|
|
+ 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 (c->Request.Type.Direction) {
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+
|
|
|
+ hpsa_map_one(h->pdev, c, buff, size, pci_dir);
|
|
|
+
|
|
|
+ return;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * 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(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.
|
|
|
+ */
|
|
|
+static void start_io(struct ctlr_info *h)
|
|
|
+{
|
|
|
+ struct CommandList *c;
|
|
|
+
|
|
|
+ while (!hlist_empty(&h->reqQ)) {
|
|
|
+ c = hlist_entry(h->reqQ.first, struct CommandList, list);
|
|
|
+ /* can't do anything if fifo is full */
|
|
|
+ if ((h->access.fifo_full(h))) {
|
|
|
+ dev_warn(&h->pdev->dev, "fifo full\n");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Get the first entry from the Request Q */
|
|
|
+ removeQ(c);
|
|
|
+ h->Qdepth--;
|
|
|
+
|
|
|
+ /* Tell the controller execute command */
|
|
|
+ h->access.submit_command(h, c);
|
|
|
+
|
|
|
+ /* Put job onto the completed Q */
|
|
|
+ addQ(&h->cmpQ, c);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static inline unsigned long get_next_completion(struct ctlr_info *h)
|
|
|
+{
|
|
|
+ return h->access.command_completed(h);
|
|
|
+}
|
|
|
+
|
|
|
+static inline int 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, __u32 raw_tag)
|
|
|
+{
|
|
|
+ removeQ(c);
|
|
|
+ if (likely(c->cmd_type == CMD_SCSI))
|
|
|
+ complete_scsi_command(c, 0, raw_tag);
|
|
|
+ else if (c->cmd_type == CMD_IOCTL_PEND)
|
|
|
+ complete(c->waiting);
|
|
|
+}
|
|
|
+
|
|
|
+static irqreturn_t do_hpsa_intr(int irq, void *dev_id)
|
|
|
+{
|
|
|
+ struct ctlr_info *h = dev_id;
|
|
|
+ struct CommandList *c;
|
|
|
+ unsigned long flags;
|
|
|
+ __u32 raw_tag, tag, tag_index;
|
|
|
+ struct hlist_node *tmp;
|
|
|
+
|
|
|
+ if (interrupt_not_for_us(h))
|
|
|
+ return IRQ_NONE;
|
|
|
+ spin_lock_irqsave(&h->lock, flags);
|
|
|
+ while (interrupt_pending(h)) {
|
|
|
+ while ((raw_tag = get_next_completion(h)) != FIFO_EMPTY) {
|
|
|
+ if (likely(HPSA_TAG_CONTAINS_INDEX(raw_tag))) {
|
|
|
+ tag_index = HPSA_TAG_TO_INDEX(raw_tag);
|
|
|
+ if (bad_tag(h, tag_index, raw_tag))
|
|
|
+ return IRQ_HANDLED;
|
|
|
+ c = h->cmd_pool + tag_index;
|
|
|
+ finish_cmd(c, raw_tag);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ tag = HPSA_TAG_DISCARD_ERROR_BITS(raw_tag);
|
|
|
+ c = NULL;
|
|
|
+ hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
|
|
|
+ if (c->busaddr == tag) {
|
|
|
+ finish_cmd(c, raw_tag);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ spin_unlock_irqrestore(&h->lock, flags);
|
|
|
+ return IRQ_HANDLED;
|
|
|
+}
|
|
|
+
|
|
|
+/* Send a message CDB to the firmware. */
|
|
|
+static __devinit 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 = 0;
|
|
|
+ cmd->CommandHeader.Tag.lower = paddr32;
|
|
|
+ cmd->CommandHeader.Tag.upper = 0;
|
|
|
+ memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8);
|
|
|
+
|
|
|
+ cmd->Request.CDBLen = 16;
|
|
|
+ cmd->Request.Type.Type = TYPE_MSG;
|
|
|
+ cmd->Request.Type.Attribute = ATTR_HEADOFQUEUE;
|
|
|
+ cmd->Request.Type.Direction = 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.lower = paddr32 + sizeof(*cmd);
|
|
|
+ cmd->ErrorDescriptor.Addr.upper = 0;
|
|
|
+ cmd->ErrorDescriptor.Len = 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 (HPSA_TAG_DISCARD_ERROR_BITS(tag) == 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_soft_reset_controller(p) hpsa_message(p, 1, 0)
|
|
|
+#define hpsa_noop(p) hpsa_message(p, 3, 0)
|
|
|
+
|
|
|
+static __devinit int hpsa_reset_msi(struct pci_dev *pdev)
|
|
|
+{
|
|
|
+/* the #defines are stolen from drivers/pci/msi.h. */
|
|
|
+#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
|
|
|
+#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
|
|
|
+
|
|
|
+ int pos;
|
|
|
+ u16 control = 0;
|
|
|
+
|
|
|
+ pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
|
|
|
+ if (pos) {
|
|
|
+ pci_read_config_word(pdev, msi_control_reg(pos), &control);
|
|
|
+ if (control & PCI_MSI_FLAGS_ENABLE) {
|
|
|
+ dev_info(&pdev->dev, "resetting MSI\n");
|
|
|
+ pci_write_config_word(pdev, msi_control_reg(pos),
|
|
|
+ control & ~PCI_MSI_FLAGS_ENABLE);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
|
|
|
+ if (pos) {
|
|
|
+ pci_read_config_word(pdev, msi_control_reg(pos), &control);
|
|
|
+ if (control & PCI_MSIX_FLAGS_ENABLE) {
|
|
|
+ dev_info(&pdev->dev, "resetting MSI-X\n");
|
|
|
+ pci_write_config_word(pdev, msi_control_reg(pos),
|
|
|
+ control & ~PCI_MSIX_FLAGS_ENABLE);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* This does a hard reset of the controller using PCI power management
|
|
|
+ * states.
|
|
|
+ */
|
|
|
+static __devinit int hpsa_hard_reset_controller(struct pci_dev *pdev)
|
|
|
+{
|
|
|
+ u16 pmcsr, saved_config_space[32];
|
|
|
+ int i, pos;
|
|
|
+
|
|
|
+ dev_info(&pdev->dev, "using PCI PM to reset controller\n");
|
|
|
+
|
|
|
+ /* 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);
|
|
|
+ *
|
|
|
+ * but we can't use these nice canned kernel routines on
|
|
|
+ * kexec, because they also check the MSI/MSI-X state in PCI
|
|
|
+ * configuration space and do the wrong thing when it is
|
|
|
+ * set/cleared. Also, the pci_save/restore_state functions
|
|
|
+ * violate the ordering requirements for restoring the
|
|
|
+ * configuration space from the CCISS document (see the
|
|
|
+ * comment below). So we roll our own ....
|
|
|
+ */
|
|
|
+
|
|
|
+ for (i = 0; i < 32; i++)
|
|
|
+ pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
|
|
|
+
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* 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."
|
|
|
+ */
|
|
|
+
|
|
|
+ /* 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);
|
|
|
+
|
|
|
+ msleep(500);
|
|
|
+
|
|
|
+ /* Restore the PCI configuration space. The Open CISS
|
|
|
+ * Specification says, "Restore the PCI Configuration
|
|
|
+ * Registers, offsets 00h through 60h. It is important to
|
|
|
+ * restore the command register, 16-bits at offset 04h,
|
|
|
+ * last. Do not restore the configuration status register,
|
|
|
+ * 16-bits at offset 06h." Note that the offset is 2*i.
|
|
|
+ */
|
|
|
+ for (i = 0; i < 32; i++) {
|
|
|
+ if (i == 2 || i == 3)
|
|
|
+ continue;
|
|
|
+ pci_write_config_word(pdev, 2*i, saved_config_space[i]);
|
|
|
+ }
|
|
|
+ wmb();
|
|
|
+ pci_write_config_word(pdev, 4, saved_config_space[2]);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * We cannot read the structure directly, for portability we must use
|
|
|
+ * the io functions.
|
|
|
+ * This is for debug only.
|
|
|
+ */
|
|
|
+#ifdef HPSA_DEBUG
|
|
|
+static void print_cfg_table(struct device *dev, struct CfgTable *tb)
|
|
|
+{
|
|
|
+ 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 __devinit hpsa_interrupt_mode(struct ctlr_info *h,
|
|
|
+ struct pci_dev *pdev, __u32 board_id)
|
|
|
+{
|
|
|
+#ifdef CONFIG_PCI_MSI
|
|
|
+ int err;
|
|
|
+ struct msix_entry hpsa_msix_entries[4] = { {0, 0}, {0, 1},
|
|
|
+ {0, 2}, {0, 3}
|
|
|
+ };
|
|
|
+
|
|
|
+ /* Some boards advertise MSI but don't really support it */
|
|
|
+ if ((board_id == 0x40700E11) ||
|
|
|
+ (board_id == 0x40800E11) ||
|
|
|
+ (board_id == 0x40820E11) || (board_id == 0x40830E11))
|
|
|
+ goto default_int_mode;
|
|
|
+ if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
|
|
|
+ dev_info(&pdev->dev, "MSIX\n");
|
|
|
+ err = pci_enable_msix(pdev, hpsa_msix_entries, 4);
|
|
|
+ if (!err) {
|
|
|
+ h->intr[0] = hpsa_msix_entries[0].vector;
|
|
|
+ h->intr[1] = hpsa_msix_entries[1].vector;
|
|
|
+ h->intr[2] = hpsa_msix_entries[2].vector;
|
|
|
+ h->intr[3] = hpsa_msix_entries[3].vector;
|
|
|
+ h->msix_vector = 1;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (err > 0) {
|
|
|
+ dev_warn(&pdev->dev, "only %d MSI-X vectors "
|
|
|
+ "available\n", err);
|
|
|
+ goto default_int_mode;
|
|
|
+ } else {
|
|
|
+ dev_warn(&pdev->dev, "MSI-X init failed %d\n",
|
|
|
+ err);
|
|
|
+ goto default_int_mode;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
|
|
|
+ dev_info(&pdev->dev, "MSI\n");
|
|
|
+ if (!pci_enable_msi(pdev))
|
|
|
+ h->msi_vector = 1;
|
|
|
+ else
|
|
|
+ dev_warn(&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[SIMPLE_MODE_INT] = pdev->irq;
|
|
|
+ return;
|
|
|
+}
|
|
|
+
|
|
|
+static int hpsa_pci_init(struct ctlr_info *h, struct pci_dev *pdev)
|
|
|
+{
|
|
|
+ ushort subsystem_vendor_id, subsystem_device_id, command;
|
|
|
+ __u32 board_id, scratchpad = 0;
|
|
|
+ __u64 cfg_offset;
|
|
|
+ __u32 cfg_base_addr;
|
|
|
+ __u64 cfg_base_addr_index;
|
|
|
+ int i, prod_index, err;
|
|
|
+
|
|
|
+ subsystem_vendor_id = pdev->subsystem_vendor;
|
|
|
+ subsystem_device_id = pdev->subsystem_device;
|
|
|
+ board_id = (((__u32) (subsystem_device_id << 16) & 0xffff0000) |
|
|
|
+ subsystem_vendor_id);
|
|
|
+
|
|
|
+ for (i = 0; i < ARRAY_SIZE(products); i++)
|
|
|
+ if (board_id == products[i].board_id)
|
|
|
+ break;
|
|
|
+
|
|
|
+ prod_index = i;
|
|
|
+
|
|
|
+ if (prod_index == ARRAY_SIZE(products)) {
|
|
|
+ prod_index--;
|
|
|
+ if (subsystem_vendor_id != PCI_VENDOR_ID_HP ||
|
|
|
+ !hpsa_allow_any) {
|
|
|
+ dev_warn(&pdev->dev, "unrecognized board ID:"
|
|
|
+ " 0x%08lx, ignoring.\n",
|
|
|
+ (unsigned long) board_id);
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /* check to see if controller has been disabled
|
|
|
+ * BEFORE trying to enable it
|
|
|
+ */
|
|
|
+ (void)pci_read_config_word(pdev, PCI_COMMAND, &command);
|
|
|
+ if (!(command & 0x02)) {
|
|
|
+ dev_warn(&pdev->dev, "controller appears to be disabled\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = pci_enable_device(pdev);
|
|
|
+ if (err) {
|
|
|
+ dev_warn(&pdev->dev, "unable to enable PCI device\n");
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = pci_request_regions(pdev, "hpsa");
|
|
|
+ if (err) {
|
|
|
+ dev_err(&pdev->dev, "cannot obtain PCI resources, aborting\n");
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* If the kernel supports MSI/MSI-X we will try to enable that,
|
|
|
+ * else we use the IO-APIC interrupt assigned to us by system ROM.
|
|
|
+ */
|
|
|
+ hpsa_interrupt_mode(h, pdev, board_id);
|
|
|
+
|
|
|
+ /* find the memory BAR */
|
|
|
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
|
|
|
+ if (pci_resource_flags(pdev, i) & IORESOURCE_MEM)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (i == DEVICE_COUNT_RESOURCE) {
|
|
|
+ dev_warn(&pdev->dev, "no memory BAR found\n");
|
|
|
+ err = -ENODEV;
|
|
|
+ goto err_out_free_res;
|
|
|
+ }
|
|
|
+
|
|
|
+ h->paddr = pci_resource_start(pdev, i); /* addressing mode bits
|
|
|
+ * already removed
|
|
|
+ */
|
|
|
+
|
|
|
+ h->vaddr = remap_pci_mem(h->paddr, 0x250);
|
|
|
+
|
|
|
+ /* Wait for the board to become ready. */
|
|
|
+ for (i = 0; i < HPSA_BOARD_READY_ITERATIONS; i++) {
|
|
|
+ scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
|
|
|
+ if (scratchpad == HPSA_FIRMWARE_READY)
|
|
|
+ break;
|
|
|
+ msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
|
|
|
+ }
|
|
|
+ if (scratchpad != HPSA_FIRMWARE_READY) {
|
|
|
+ dev_warn(&pdev->dev, "board not ready, timed out.\n");
|
|
|
+ err = -ENODEV;
|
|
|
+ goto err_out_free_res;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* get the address index number */
|
|
|
+ cfg_base_addr = readl(h->vaddr + SA5_CTCFG_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");
|
|
|
+ err = -ENODEV;
|
|
|
+ goto err_out_free_res;
|
|
|
+ }
|
|
|
+
|
|
|
+ cfg_offset = readl(h->vaddr + SA5_CTMEM_OFFSET);
|
|
|
+ h->cfgtable = remap_pci_mem(pci_resource_start(pdev,
|
|
|
+ cfg_base_addr_index) + cfg_offset,
|
|
|
+ sizeof(h->cfgtable));
|
|
|
+ h->board_id = board_id;
|
|
|
+
|
|
|
+ /* Query controller for max supported commands: */
|
|
|
+ h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
|
|
|
+
|
|
|
+ h->product_name = products[prod_index].product_name;
|
|
|
+ h->access = *(products[prod_index].access);
|
|
|
+ /* Allow room for some ioctls */
|
|
|
+ h->nr_cmds = h->max_commands - 4;
|
|
|
+
|
|
|
+ if ((readb(&h->cfgtable->Signature[0]) != 'C') ||
|
|
|
+ (readb(&h->cfgtable->Signature[1]) != 'I') ||
|
|
|
+ (readb(&h->cfgtable->Signature[2]) != 'S') ||
|
|
|
+ (readb(&h->cfgtable->Signature[3]) != 'S')) {
|
|
|
+ dev_warn(&pdev->dev, "not a valid CISS config table\n");
|
|
|
+ err = -ENODEV;
|
|
|
+ goto err_out_free_res;
|
|
|
+ }
|
|
|
+#ifdef CONFIG_X86
|
|
|
+ {
|
|
|
+ /* Need to enable prefetch in the SCSI core for 6400 in x86 */
|
|
|
+ __u32 prefetch;
|
|
|
+ prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
|
|
|
+ prefetch |= 0x100;
|
|
|
+ writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
|
|
|
+ }
|
|
|
+#endif
|
|
|
+
|
|
|
+ /* Disabling DMA prefetch for the P600
|
|
|
+ * An ASIC bug may result in a prefetch beyond
|
|
|
+ * physical memory.
|
|
|
+ */
|
|
|
+ if (board_id == 0x3225103C) {
|
|
|
+ __u32 dma_prefetch;
|
|
|
+ dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG);
|
|
|
+ dma_prefetch |= 0x8000;
|
|
|
+ writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG);
|
|
|
+ }
|
|
|
+
|
|
|
+ h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
|
|
|
+ /* Update the field, and then ring the doorbell */
|
|
|
+ writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest));
|
|
|
+ writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
|
|
|
+
|
|
|
+ /* 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++) {
|
|
|
+ if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
|
|
|
+ break;
|
|
|
+ /* delay and try again */
|
|
|
+ msleep(10);
|
|
|
+ }
|
|
|
+
|
|
|
+#ifdef HPSA_DEBUG
|
|
|
+ print_cfg_table(&pdev->dev, h->cfgtable);
|
|
|
+#endif /* HPSA_DEBUG */
|
|
|
+
|
|
|
+ if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
|
|
|
+ dev_warn(&pdev->dev, "unable to get board into simple mode\n");
|
|
|
+ err = -ENODEV;
|
|
|
+ goto err_out_free_res;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err_out_free_res:
|
|
|
+ /*
|
|
|
+ * Deliberately omit pci_disable_device(): it does something nasty to
|
|
|
+ * Smart Array controllers that pci_enable_device does not undo
|
|
|
+ */
|
|
|
+ pci_release_regions(pdev);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int __devinit hpsa_init_one(struct pci_dev *pdev,
|
|
|
+ const struct pci_device_id *ent)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+ int dac;
|
|
|
+ struct ctlr_info *h;
|
|
|
+
|
|
|
+ if (number_of_controllers == 0)
|
|
|
+ printk(KERN_INFO DRIVER_NAME "\n");
|
|
|
+ if (reset_devices) {
|
|
|
+ /* Reset the controller with a PCI power-cycle */
|
|
|
+ if (hpsa_hard_reset_controller(pdev) || hpsa_reset_msi(pdev))
|
|
|
+ return -ENODEV;
|
|
|
+
|
|
|
+ /* Some devices (notably the HP Smart Array 5i Controller)
|
|
|
+ need a little pause here */
|
|
|
+ msleep(HPSA_POST_RESET_PAUSE_MSECS);
|
|
|
+
|
|
|
+ /* Now try to get the controller to respond to a no-op */
|
|
|
+ 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" : ""));
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ BUILD_BUG_ON(sizeof(struct CommandList) % 8);
|
|
|
+ h = kzalloc(sizeof(*h), GFP_KERNEL);
|
|
|
+ if (!h)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ h->busy_initializing = 1;
|
|
|
+ INIT_HLIST_HEAD(&h->cmpQ);
|
|
|
+ INIT_HLIST_HEAD(&h->reqQ);
|
|
|
+ mutex_init(&h->busy_shutting_down);
|
|
|
+ init_completion(&h->scan_wait);
|
|
|
+ if (hpsa_pci_init(h, pdev) != 0)
|
|
|
+ goto clean1;
|
|
|
+
|
|
|
+ sprintf(h->devname, "hpsa%d", number_of_controllers);
|
|
|
+ h->ctlr = number_of_controllers;
|
|
|
+ number_of_controllers++;
|
|
|
+ h->pdev = pdev;
|
|
|
+
|
|
|
+ /* configure PCI DMA stuff */
|
|
|
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
|
|
|
+ dac = 1;
|
|
|
+ else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
|
|
|
+ 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 (request_irq(h->intr[SIMPLE_MODE_INT], do_hpsa_intr,
|
|
|
+ IRQF_DISABLED | IRQF_SHARED, h->devname, h)) {
|
|
|
+ dev_err(&pdev->dev, "unable to get irq %d for %s\n",
|
|
|
+ h->intr[SIMPLE_MODE_INT], h->devname);
|
|
|
+ goto clean2;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev_info(&pdev->dev, "%s: <0x%x> at PCI %s IRQ %d%s using DAC\n",
|
|
|
+ h->devname, pdev->device, pci_name(pdev),
|
|
|
+ h->intr[SIMPLE_MODE_INT], dac ? "" : " not");
|
|
|
+
|
|
|
+ h->cmd_pool_bits =
|
|
|
+ kmalloc(((h->nr_cmds + BITS_PER_LONG -
|
|
|
+ 1) / 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(&pdev->dev, "out of memory");
|
|
|
+ goto clean4;
|
|
|
+ }
|
|
|
+ spin_lock_init(&h->lock);
|
|
|
+
|
|
|
+ pci_set_drvdata(pdev, h);
|
|
|
+ memset(h->cmd_pool_bits, 0,
|
|
|
+ ((h->nr_cmds + BITS_PER_LONG -
|
|
|
+ 1) / BITS_PER_LONG) * sizeof(unsigned long));
|
|
|
+
|
|
|
+ hpsa_scsi_setup(h);
|
|
|
+
|
|
|
+ /* Turn the interrupts on so we can service requests */
|
|
|
+ h->access.set_intr_mask(h, HPSA_INTR_ON);
|
|
|
+
|
|
|
+ hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
|
|
|
+ h->busy_initializing = 0;
|
|
|
+ return 1;
|
|
|
+
|
|
|
+clean4:
|
|
|
+ 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->errinfo_pool)
|
|
|
+ pci_free_consistent(h->pdev,
|
|
|
+ h->nr_cmds * sizeof(struct ErrorInfo),
|
|
|
+ h->errinfo_pool,
|
|
|
+ h->errinfo_pool_dhandle);
|
|
|
+ free_irq(h->intr[SIMPLE_MODE_INT], h);
|
|
|
+clean2:
|
|
|
+clean1:
|
|
|
+ h->busy_initializing = 0;
|
|
|
+ kfree(h);
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+static void hpsa_flush_cache(struct ctlr_info *h)
|
|
|
+{
|
|
|
+ char *flush_buf;
|
|
|
+ struct CommandList *c;
|
|
|
+
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+ fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0,
|
|
|
+ RAID_CTLR_LUNID, TYPE_CMD);
|
|
|
+ hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_TODEVICE);
|
|
|
+ if (c->err_info->CommandStatus != 0)
|
|
|
+ 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);
|
|
|
+ free_irq(h->intr[2], h);
|
|
|
+#ifdef CONFIG_PCI_MSI
|
|
|
+ if (h->msix_vector)
|
|
|
+ pci_disable_msix(h->pdev);
|
|
|
+ else if (h->msi_vector)
|
|
|
+ pci_disable_msi(h->pdev);
|
|
|
+#endif /* CONFIG_PCI_MSI */
|
|
|
+}
|
|
|
+
|
|
|
+static void __devexit hpsa_remove_one(struct pci_dev *pdev)
|
|
|
+{
|
|
|
+ struct ctlr_info *h;
|
|
|
+
|
|
|
+ if (pci_get_drvdata(pdev) == NULL) {
|
|
|
+ dev_err(&pdev->dev, "unable to remove device \n");
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ h = pci_get_drvdata(pdev);
|
|
|
+ mutex_lock(&h->busy_shutting_down);
|
|
|
+ remove_from_scan_list(h);
|
|
|
+ hpsa_unregister_scsi(h); /* unhook from SCSI subsystem */
|
|
|
+ hpsa_shutdown(pdev);
|
|
|
+ iounmap(h->vaddr);
|
|
|
+ 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);
|
|
|
+ kfree(h->cmd_pool_bits);
|
|
|
+ /*
|
|
|
+ * Deliberately omit pci_disable_device(): it does something nasty to
|
|
|
+ * Smart Array controllers that pci_enable_device does not undo
|
|
|
+ */
|
|
|
+ pci_release_regions(pdev);
|
|
|
+ pci_set_drvdata(pdev, NULL);
|
|
|
+ mutex_unlock(&h->busy_shutting_down);
|
|
|
+ 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 = __devexit_p(hpsa_remove_one),
|
|
|
+ .id_table = hpsa_pci_device_id, /* id_table */
|
|
|
+ .shutdown = hpsa_shutdown,
|
|
|
+ .suspend = hpsa_suspend,
|
|
|
+ .resume = hpsa_resume,
|
|
|
+};
|
|
|
+
|
|
|
+/*
|
|
|
+ * 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)
|
|
|
+{
|
|
|
+ int err;
|
|
|
+ /* Start the scan thread */
|
|
|
+ hpsa_scan_thread = kthread_run(hpsa_scan_func, NULL, "hpsa_scan");
|
|
|
+ if (IS_ERR(hpsa_scan_thread)) {
|
|
|
+ err = PTR_ERR(hpsa_scan_thread);
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+ err = pci_register_driver(&hpsa_pci_driver);
|
|
|
+ if (err)
|
|
|
+ kthread_stop(hpsa_scan_thread);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit hpsa_cleanup(void)
|
|
|
+{
|
|
|
+ pci_unregister_driver(&hpsa_pci_driver);
|
|
|
+ kthread_stop(hpsa_scan_thread);
|
|
|
+}
|
|
|
+
|
|
|
+module_init(hpsa_init);
|
|
|
+module_exit(hpsa_cleanup);
|
Linus Torvalds